3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
14 #if defined(__HP_cc) || defined(__HP_aCC)
15 /* The HPUX compiler for Itanium is very picky and warns about
16 * things that gcc doesn't and that we would prefer it does not.
17 * So on that platform silence certain warnings unlaterally. */
19 /* silence "relational operator ">" always evaluates to 'false'"
20 * warnings. We get a LOT of these from the memwrap checks. */
21 #pragma diag_suppress 4276
23 /* silence "may cause misaligned access" warnings from our "OO in C"
24 * type logic. we do this a lot and if it was broken we would fail tests
25 * all over the place */
26 #pragma diag_suppress 4232
28 #endif /* end HPUX warning disablement */
32 * This file is being used for x2p stuff.
33 * Above symbol is defined via -D in 'x2p/Makefile.SH'
34 * Decouple x2p stuff from some of perls more extreme eccentricities.
39 #endif /* PERL_FOR_X2P */
41 /* Treat the SVs on the argument stack as having been reference counted.
44 /* #define PERL_RC_STACK */
48 /* This fakes up using Mingw for locale handling. In order to not define WIN32
49 * in this file (and hence throughout the code that isn't expecting it), this
50 * doesn't define that, but defines the appropriate things that would otherwise
51 * be defined later in the file. Hence those and here must be kept in sync */
52 #ifdef WIN32_USE_FAKE_OLD_MINGW_LOCALES
53 # define UINT unsigned int
54 # undef USE_THREAD_SAFE_LOCALE
55 # define NO_POSIX_2008_LOCALE
56 # undef HAS_NL_LANGINFO
57 # undef HAS_NL_LANGINFO_L
60 # define TS_W32_BROKEN_LOCALECONV
62 # define EMULATE_THREAD_SAFE_LOCALES
68 =for apidoc_section $debugging
69 =for apidoc CmnW ||comma_aDEPTH
70 Some functions when compiled under DEBUGGING take an extra final argument named
71 C<depth>, indicating the C stack depth. This argument is omitted otherwise.
72 This macro expands to either S<C<, depth>> under DEBUGGING, or to nothing at
73 all when not under DEBUGGING, reducing the number of C<#ifdef>'s in the code.
75 The program is responsible for maintaining the correct value for C<depth>.
77 =for apidoc CyW ||comma_pDEPTH
78 This is used in the prototype declarations for functions that take a L</C<comma_aDEPTH>>
79 final parameter, much like L<C<pTHX_>|perlguts/Background and MULTIPLICITY>
80 is used in functions that take a thread context initial parameter.
82 =for apidoc CmnW ||debug_aDEPTH
83 Same as L</C<comma_aDEPTH>> but with no leading argument. Intended for functions with
84 no normal arguments, and used by L</C<comma_aDEPTH>> itself.
86 =for apidoc CmnW ||debug_pDEPTH
87 Same as L</C<comma_pDEPTH>> but with no leading argument. Intended for functions with
88 no normal arguments, and used by L</C<comma_pDEPTH>> itself.
94 # define debug_pDEPTH U32 depth
95 # define comma_pDEPTH ,debug_pDEPTH
96 # define debug_aDEPTH depth
97 # define comma_aDEPTH ,debug_aDEPTH
100 # define comma_aDEPTH
101 # define debug_pDEPTH
102 # define comma_pDEPTH
105 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
106 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
107 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
109 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
110 * all the C99 features are there and are correct. */
111 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
112 defined(_STDC_C99) || defined(__c99)
116 /* =========================================================================
117 * The defines from here to the following ===== line are unfortunately
118 * duplicated in makedef.pl, and changes here MUST also be made there */
120 /* See L<perlguts/"The Perl API"> for detailed notes on
121 * MULTIPLICITY and PERL_IMPLICIT_SYS */
124 # if !defined(MULTIPLICITY)
125 # define MULTIPLICITY
129 /* PERL_IMPLICIT_CONTEXT is a legacy synonym for MULTIPLICITY */
130 #if defined(MULTIPLICITY) \
131 && ! defined(PERL_CORE) \
132 && ! defined(PERL_IMPLICIT_CONTEXT)
133 # define PERL_IMPLICIT_CONTEXT
135 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(MULTIPLICITY)
136 # define MULTIPLICITY
138 #if defined(PERL_CORE) && defined(PERL_IMPLICIT_CONTEXT)
139 # pragma message("PERL_IMPLICIT_CONTEXT was removed from core perl. It does not do anything. Undeffing it for compilation")
140 # undef PERL_IMPLICIT_CONTEXT
143 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
149 /* Use the reentrant APIs like localtime_r and getpwent_r */
150 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
151 * XXX KEEP makedef.pl copy of this code in sync */
152 #if defined(MULTIPLICITY) && !defined(USE_REENTRANT_API) && !defined(WIN32)
153 # define USE_REENTRANT_API
156 /* end of makedef.pl logic duplication. But there are other groups below.
157 * ========================================================================= */
160 =for apidoc_section $directives
161 =for apidoc AmnUu|void|EXTERN_C
162 When not compiling using C++, expands to nothing.
163 Otherwise is used in a declaration of a function to indicate the function
164 should have external C linkage. This is required for things to work for just
165 about all functions with external linkage compiled into perl.
166 Often, you can use C<L</START_EXTERN_C>> ... C<L</END_EXTERN_C>> blocks
167 surrounding all your code that you need to have this linkage.
171 EXTERN_C int flock(int fd, int op);
173 =for apidoc Amnu||START_EXTERN_C
174 When not compiling using C++, expands to nothing.
175 Otherwise begins a section of code in which every function will effectively
176 have C<L</EXTERN_C>> applied to it, that is to have external C linkage. The
177 section is ended by a C<L</END_EXTERN_C>>.
179 =for apidoc Amnu||END_EXTERN_C
180 When not compiling using C++, expands to nothing.
181 Otherwise ends a section of code already begun by a C<L</START_EXTERN_C>>.
186 #undef START_EXTERN_C
190 # define EXTERN_C extern "C"
191 # define START_EXTERN_C EXTERN_C {
192 # define END_EXTERN_C }
194 # define START_EXTERN_C
195 # define END_EXTERN_C
196 # define EXTERN_C extern
199 /* Fallback definitions in case we don't have definitions from config.h.
200 This should only matter for systems that don't use Configure and
201 haven't been modified to define PERL_STATIC_INLINE yet.
203 #if !defined(PERL_STATIC_INLINE)
204 # ifdef HAS_STATIC_INLINE
205 # define PERL_STATIC_INLINE static inline
207 # define PERL_STATIC_INLINE static
212 =for apidoc_section $concurrency
213 =for apidoc AmU|void|dTHXa|PerlInterpreter * a
214 On threaded perls, set C<pTHX> to C<a>; on unthreaded perls, do nothing
216 =for apidoc AmU|void|dTHXoa|PerlInterpreter * a
217 Now a synonym for C<L</dTHXa>>.
223 # define tTHX PerlInterpreter*
224 # define pTHX tTHX my_perl PERL_UNUSED_DECL
225 # define aTHX my_perl
226 # define aTHXa(a) aTHX = (tTHX)a
227 # define dTHXa(a) pTHX = (tTHX)a
228 # define dTHX pTHX = PERL_GET_THX
241 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
242 # define PERL_TRACK_MEMPOOL
245 # undef PERL_TRACK_MEMPOOL
249 # define dTHX_DEBUGGING dTHX
251 # define dTHX_DEBUGGING dNOOP
254 #define STATIC static
257 /* Do not use these macros. They were part of PERL_OBJECT, which was an
258 * implementation of multiplicity using C++ objects. They have been left
259 * here solely for the sake of XS code which has incorrectly
262 * The only one Devel::PPPort handles is this; list it as deprecated
264 =for apidoc_section $concurrency
265 =for apidoc AmD|void|CPERLscope|void x
270 # define CPERLscope(x) x
271 # define CPERLarg void
274 # define PERL_OBJECT_THIS
275 # define _PERL_OBJECT_THIS
276 # define PERL_OBJECT_THIS_
277 # define CALL_FPTR(fptr) (*fptr)
278 # define MEMBER_TO_FPTR(name) name
279 #endif /* !PERL_CORE */
282 # define CALLRUNOPS Perl_runops_wrap
284 # define CALLRUNOPS PL_runops
287 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
289 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
290 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
291 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
292 (strbeg),(minend),(sv),(data),(flags))
293 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
294 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
295 (strend),(flags),(data))
296 #define CALLREG_INTUIT_STRING(prog) \
297 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
299 #define CALLREGFREE(prog) \
300 Perl_pregfree(aTHX_ (prog))
302 #define CALLREGFREE_PVT(prog) \
303 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
305 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
306 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
308 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
309 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
311 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
312 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
314 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
315 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
317 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
318 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
320 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
321 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
323 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
324 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
326 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
327 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
329 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
330 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
332 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
333 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
335 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
336 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
338 #define CALLREG_NAMED_BUFF_COUNT(rx) \
339 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
341 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
342 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
344 #define CALLREG_PACKAGE(rx) \
345 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
347 #if defined(USE_ITHREADS)
348 # define CALLREGDUPE(prog,param) \
349 Perl_re_dup(aTHX_ (prog),(param))
351 # define CALLREGDUPE_PVT(prog,param) \
352 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
356 /* some compilers impersonate gcc */
357 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
358 # define PERL_IS_GCC 1
361 #define PERL_GCC_VERSION_GE(major,minor,patch) \
362 (((100000 * __GNUC__) + (1000 * __GNUC_MINOR__) + __GNUC_PATCHLEVEL__) \
363 >= ((100000 * (major)) + (1000 * (minor)) + (patch)))
364 #define PERL_GCC_VERSION_GT(major,minor,patch) \
365 (((100000 * __GNUC__) + (1000 * __GNUC_MINOR__) + __GNUC_PATCHLEVEL__) \
366 > ((100000 * (major)) + (1000 * (minor)) + (patch)))
367 #define PERL_GCC_VERSION_LE(major,minor,patch) \
368 (((100000 * __GNUC__) + (1000 * __GNUC_MINOR__) + __GNUC_PATCHLEVEL__) \
369 <= ((100000 * (major)) + (1000 * (minor)) + (patch)))
370 #define PERL_GCC_VERSION_LT(major,minor,patch) \
371 (((100000 * __GNUC__) + (1000 * __GNUC_MINOR__) + __GNUC_PATCHLEVEL__) \
372 < ((100000 * (major)) + (1000 * (minor)) + (patch)))
374 /* In case Configure was not used (we are using a "canned config"
375 * such as Win32, or a cross-compilation setup, for example) try going
376 * by the gcc major and minor versions. One useful URL is
377 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
378 * but contrary to this information warn_unused_result seems
379 * not to be in gcc 3.3.5, at least. --jhi
380 * Also, when building extensions with an installed perl, this allows
381 * the user to upgrade gcc and get the right attributes, rather than
382 * relying on the list generated at Configure time. --AD
383 * Set these up now otherwise we get confused when some of the <*thread.h>
384 * includes below indirectly pull in <perlio.h> (which needs to know if we
385 * have HASATTRIBUTE_FORMAT).
388 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
389 # if PERL_GCC_VERSION_GE(3,1,0)
390 # define HASATTRIBUTE_DEPRECATED
392 # if PERL_GCC_VERSION_GE(3,0,0) /* XXX Verify this version */
393 # define HASATTRIBUTE_FORMAT
394 # if defined __MINGW32__
395 # define PRINTF_FORMAT_NULL_OK
398 # if PERL_GCC_VERSION_GE(3,0,0)
399 # define HASATTRIBUTE_MALLOC
401 # if PERL_GCC_VERSION_GE(3,3,0)
402 # define HASATTRIBUTE_NONNULL
404 # if PERL_GCC_VERSION_GE(2,5,0)
405 # define HASATTRIBUTE_NORETURN
407 # if PERL_GCC_VERSION_GE(3,0,0)
408 # define HASATTRIBUTE_PURE
410 # if PERL_GCC_VERSION_GE(3,4,0)
411 # define HASATTRIBUTE_UNUSED
413 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
414 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
416 # if PERL_GCC_VERSION_GE(3,4,0)
417 # define HASATTRIBUTE_WARN_UNUSED_RESULT
419 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
420 # if PERL_GCC_VERSION_GE(4,7,0)
421 # define HASATTRIBUTE_ALWAYS_INLINE
423 # if PERL_GCC_VERSION_GE(3,3,0)
424 # define HASATTRIBUTE_VISIBILITY
428 #ifdef HASATTRIBUTE_DEPRECATED
429 # define __attribute__deprecated__ __attribute__((deprecated))
431 #ifdef HASATTRIBUTE_FORMAT
432 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
434 #ifdef HASATTRIBUTE_MALLOC
435 # define __attribute__malloc__ __attribute__((__malloc__))
437 #ifdef HASATTRIBUTE_NONNULL
438 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
440 #ifdef HASATTRIBUTE_NORETURN
441 # define __attribute__noreturn__ __attribute__((noreturn))
443 #ifdef HASATTRIBUTE_PURE
444 # define __attribute__pure__ __attribute__((pure))
446 #ifdef HASATTRIBUTE_UNUSED
447 # define __attribute__unused__ __attribute__((unused))
449 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
450 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
452 #ifdef HASATTRIBUTE_ALWAYS_INLINE
453 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
454 # if !defined(PERL_IS_GCC) || PERL_GCC_VERSION_GE(4,7,0)
455 # define __attribute__always_inline__ __attribute__((always_inline))
458 #if defined(HASATTRIBUTE_VISIBILITY) && !defined(_WIN32) && !defined(__CYGWIN__)
459 /* On Windows instead of this, we use __declspec(dllexport) and a .def file
460 * Cygwin works by exporting every global symbol, see the definition of ldflags
461 * near the end of hints/cygwin.sh and the visibility attribute doesn't appear
464 # define __attribute__visibility__(x) __attribute__((visibility(x)))
467 /* If we haven't defined the attributes yet, define them to blank. */
468 #ifndef __attribute__deprecated__
469 # define __attribute__deprecated__
471 #ifndef __attribute__format__
472 # define __attribute__format__(x,y,z)
474 #ifndef __attribute__malloc__
475 # define __attribute__malloc__
477 #ifndef __attribute__nonnull__
478 # define __attribute__nonnull__(a)
480 #ifndef __attribute__noreturn__
481 # define __attribute__noreturn__
483 #ifndef __attribute__pure__
484 # define __attribute__pure__
486 #ifndef __attribute__unused__
487 # define __attribute__unused__
489 #ifndef __attribute__warn_unused_result__
490 # define __attribute__warn_unused_result__
492 #ifndef __attribute__always_inline__
493 # define __attribute__always_inline__
495 #ifndef __attribute__visibility__
496 # define __attribute__visibility__(x)
499 /* Some OS warn on NULL format to printf */
500 #ifdef PRINTF_FORMAT_NULL_OK
501 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
503 # define __attribute__format__null_ok__(x,y,z)
507 * Because of backward compatibility reasons the PERL_UNUSED_DECL
508 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
510 * Note that there are C compilers such as MetroWerks CodeWarrior
511 * which do not have an "inlined" way (like the gcc __attribute__) of
512 * marking unused variables (they need e.g. a #pragma) and therefore
513 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
514 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
518 =for apidoc_section $directives
519 =for apidoc AmnU||PERL_UNUSED_DECL
520 Tells the compiler that the parameter in the function prototype just before it
521 is not necessarily expected to be used in the function. Not that many
522 compilers understand this, so this should only be used in cases where
523 C<L</PERL_UNUSED_ARG>> can't conveniently be used.
530 Perl_perly_sighandler(int sig, Siginfo_t *sip PERL_UNUSED_DECL,
531 void *uap PERL_UNUSED_DECL, bool safe)
538 #ifndef PERL_UNUSED_DECL
539 # define PERL_UNUSED_DECL __attribute__unused__
543 * for silencing unused variables that are actually used most of the time,
544 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
545 * or variables/arguments that are used only in certain configurations.
548 =for apidoc Am;||PERL_UNUSED_ARG|void x
549 This is used to suppress compiler warnings that a parameter to a function is
550 not used. This situation can arise, for example, when a parameter is needed
551 under some configuration conditions, but not others, so that C preprocessor
552 conditional compilation causes it be used just sometimes.
554 =for apidoc Amn;||PERL_UNUSED_CONTEXT
555 This is used to suppress compiler warnings that the thread context parameter to
556 a function is not used. This situation can arise, for example, when a
557 C preprocessor conditional compilation causes it be used just some times.
559 =for apidoc Am;||PERL_UNUSED_VAR|void x
560 This is used to suppress compiler warnings that the variable I<x> is not used.
561 This situation can arise, for example, when a C preprocessor conditional
562 compilation causes it be used just some times.
566 #ifndef PERL_UNUSED_ARG
567 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
569 #ifndef PERL_UNUSED_VAR
570 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
573 #if defined(MULTIPLICITY)
574 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
576 # define PERL_UNUSED_CONTEXT
579 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
580 * g++ allows them but seems to have problems with them
581 * (insane errors ensue).
582 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
584 #if defined(PERL_GCC_PEDANTIC) || \
585 (defined(__GNUC__) && defined(__cplusplus) && \
586 (PERL_GCC_VERSION_LT(4,2,0)))
587 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
588 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
594 =for apidoc Am||PERL_UNUSED_RESULT|void x
596 This macro indicates to discard the return value of the function call inside
599 PERL_UNUSED_RESULT(foo(a, b))
601 The main reason for this is that the combination of C<gcc -Wunused-result>
602 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
603 be silenced with casting to C<void>. This causes trouble when the system
604 header files use the attribute.
606 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
607 is there for a good reason: you might lose success/failure information,
608 or leak resources, or changes in resources.
610 But sometimes you just want to ignore the return value, I<e.g.>, on
611 codepaths soon ending up in abort, or in "best effort" attempts,
612 or in situations where there is no good way to handle failures.
614 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
615 another possibility is that you can capture the return value
616 and use C<L</PERL_UNUSED_VAR>> on that.
620 The __typeof__() is used instead of typeof() since typeof() is not
621 available under strict ISO C, and because of compilers masquerading
622 as gcc (clang and icc), we want exactly the gcc extension
623 __typeof__ and nothing else.
626 #ifndef PERL_UNUSED_RESULT
627 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
628 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
630 # define PERL_UNUSED_RESULT(v) ((void)(v))
634 /* on gcc (and clang), specify that a warning should be temporarily
637 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
639 * GCC_DIAG_RESTORE_DECL;
641 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
643 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
644 * clang only pretends to be GCC 4.2, but still supports push/pop.
646 * Note on usage: all macros must be used at a place where a declaration
647 * or statement can occur, i.e., not in the middle of an expression.
648 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
649 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
650 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
651 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
652 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
653 * and behave syntactically as statements (like NOOP).
657 #if defined(__clang__) || defined(__clang) || PERL_GCC_VERSION_GE(4,6,0)
658 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
659 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
660 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
661 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
662 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
664 # define GCC_DIAG_IGNORE(w)
665 # define GCC_DIAG_RESTORE
667 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
668 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
669 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
670 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
671 /* for clang specific pragmas */
672 #if defined(__clang__) || defined(__clang)
673 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
674 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
675 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
676 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
678 # define CLANG_DIAG_IGNORE(w)
679 # define CLANG_DIAG_RESTORE
681 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
682 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
683 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
684 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
686 #if defined(_MSC_VER)
687 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
688 __pragma(warning(disable : x))
689 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
691 # define MSVC_DIAG_IGNORE(x)
692 # define MSVC_DIAG_RESTORE
694 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
695 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
696 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
697 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
700 =for apidoc Amn;||NOOP
701 Do nothing; typically used as a placeholder to replace something that used to
704 =for apidoc Amn;||dNOOP
705 Declare nothing; typically used as a placeholder to replace something that used
706 to declare something. Works on compilers that require declarations before any
711 #define NOOP ((void)0)
712 #define dNOOP struct Perl___notused_struct
715 /* Don't bother defining tTHX ; using it outside
716 * code guarded by MULTIPLICITY is an error.
722 # define aTHXa(a) NOOP
723 # define dTHXa(a) dNOOP
738 =for apidoc_section $concurrency
739 =for apidoc AmnU||dVAR
740 This is now a synonym for dNOOP: declare nothing
742 =for apidoc_section $XS
743 =for apidoc Amn;||dMY_CXT_SV
744 Now a placeholder that declares nothing
750 /* Backwards compatibility macro for XS code. It used to be part of the
751 * PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
754 /* these are only defined for compatibility; should not be used internally.
756 # define dMY_CXT_SV dNOOP
759 # define pTHXo_ pTHX_
761 # define aTHXo_ aTHX_
763 # define dTHXoa(x) dTHXa(x)
768 # define pTHXx PerlInterpreter *my_perl
769 # define pTHXx_ pTHXx,
770 # define aTHXx my_perl
771 # define aTHXx_ aTHXx,
775 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
776 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
777 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
778 #ifdef PERL_IMPLICIT_SYS
784 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
785 # ifndef PERL_USE_GCC_BRACE_GROUPS
786 # define PERL_USE_GCC_BRACE_GROUPS
791 =for apidoc_section $directives
792 =for apidoc AmnUu|void|STMT_END
793 =for apidoc_item | |STMT_START
795 These allow a series of statements in a macro to be used as a single statement,
798 if (x) STMT_START { ... } STMT_END else ...
800 Note that you can't return a value out of this construct and cannot use it as
801 an operand to the comma operator. These limit its utility.
803 But, a value could be returned by constructing the API so that a pointer is
804 passed and the macro dereferences this to set the return. If the value can be
805 any of various types, depending on context, you can handle that situation in
806 some situations by adding the type of the return as an extra accompanying
809 #define foo(param, type) STMT_START {
810 type * param; *param = do_calc; ...
813 This could be awkward, so consider instead using a C language C<static inline>
816 If you do use this construct, it is easy to forget that it is a macro and not a
817 function, and hence fall into traps that might not show up until someone
818 someday writes code which contains names that clash with the ones you chose
819 here, or calls it with a parameter which is an expression with side effects,
820 the consequences of which you didn't think about. See L<perlhacktips/Writing
821 safer macros> for how to avoid these.
823 =for apidoc_section $genconfig
824 =for apidoc Amn#||PERL_USE_GCC_BRACE_GROUPS
826 This C pre-processor value, if defined, indicates that it is permissible to use
827 the GCC brace groups extension. However, use of this extension is DISCOURAGED.
828 Use a C<static inline> function instead.
830 The extension, of the form
834 turns the block consisting of I<statement ...> into an expression with a
835 value, unlike plain C language blocks. This can present optimization
836 possibilities, B<BUT>, unless you know for sure that this will never be
837 compiled without this extension being available and not forbidden, you need to
838 specify an alternative. Thus two code paths have to be maintained, which can
839 get out-of-sync. All these issues are solved by using a C<static inline>
842 Perl can be configured to not use this feature by passing the parameter
843 C<-Accflags=-DPERL_GCC_BRACE_GROUPS_FORBIDDEN> to F<Configure>.
845 =for apidoc Amnh#||PERL_GCC_BRACE_GROUPS_FORBIDDEN
851 #ifdef PERL_USE_GCC_BRACE_GROUPS
861 Trying to select a version that gives no warnings...
863 #if !(defined(STMT_START) && defined(STMT_END))
864 # define STMT_START do
865 # define STMT_END while (0)
868 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
869 # define BYTEORDER 0x1234
873 =for apidoc_section $genconfig
874 =for apidoc Amn#||ASCIIish
876 A preprocessor symbol that is defined iff the system is an ASCII platform; this
877 symbol would not be defined on C<L</EBCDIC>> platforms.
881 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
888 * The following contortions are brought to you on behalf of all the
889 * standards, semi-standards, de facto standards, not-so-de-facto standards
890 * of the world, as well as all the other botches anyone ever thought of.
891 * The basic theory is that if we work hard enough here, the rest of the
892 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
895 /* define this once if either system, instead of cluttering up the src */
900 /* These exist only for back-compat with XS modules. */
903 #define CAN_PROTOTYPE
910 /* Don't compile 'code' if PERL_MEM_LOG is defined. This is used for
911 * constructs that don't play well when PERL_MEM_LOG is active, so that they
912 * automatically don't get compiled without having to use extra #ifdef's */
914 # define UNLESS_PERL_MEM_LOG(code) code
916 # define UNLESS_PERL_MEM_LOG(code)
919 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
920 * you get a perl without taint support, but doubtlessly with a lesser
921 * degree of support. Do not do so unless you know exactly what it means
922 * technically, have a good reason to do so, and know exactly how the
923 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
924 * a potential security risk due to flat out ignoring the security-relevant
925 * taint flags. This being said, a perl without taint support compiled in
926 * has marginal run-time performance benefits.
927 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
928 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
929 * silently ignores -t/-T instead of throwing an exception.
931 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
932 * voids your nonexistent warranty!
934 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
935 # define NO_TAINT_SUPPORT 1
938 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
939 * operations into no-ops for a very modest speed-up. Enable only if you
940 * know what you're doing: tests and CPAN modules' tests are bound to fail.
942 #ifdef NO_TAINT_SUPPORT
944 # define TAINT_NOT NOOP
945 # define TAINT_IF(c) NOOP
946 # define TAINT_ENV() NOOP
947 # define TAINT_PROPER(s) NOOP
948 # define TAINT_set(s) NOOP
950 # define TAINTING_get 0
951 # define TAINTING_set(s) NOOP
952 # define TAINT_WARN_get 0
953 # define TAINT_WARN_set(s) NOOP
957 =for apidoc_section $tainting
958 =for apidoc Cm|void|TAINT
960 If we aren't in taint checking mode, do nothing;
961 otherwise indicate to L</C<TAINT_set>> and L</C<TAINT_PROPER>> that some
962 unspecified element is tainted.
964 =for apidoc Cm|void|TAINT_NOT
966 Remove any taintedness previously set by, I<e.g.>, C<TAINT>.
968 =for apidoc Cm|void|TAINT_IF|bool c
970 If C<c> evaluates to true, call L</C<TAINT>> to indicate that something is
971 tainted; otherwise do nothing.
973 =for apidoc Cmn|void|TAINT_ENV
975 Looks at several components of L<C<%ENV>|perlvar/%ENV> for taintedness, and
976 calls L</C<taint_proper>> if any are tainted. The components it searches are
977 things like C<$PATH>.
979 =for apidoc Cm|void|TAINT_PROPER|const char * s
981 If no element is tainted, do nothing;
982 otherwise output a message (containing C<s>) that indicates there is a
983 tainting violation. If such violations are fatal, it croaks.
985 =for apidoc Cm|void|TAINT_set|bool s
987 If C<s> is true, L</C<TAINT_get>> returns true;
988 If C<s> is false, L</C<TAINT_get>> returns false;
990 =for apidoc Cm|bool|TAINT_get
992 Returns a boolean as to whether some element is tainted or not.
994 =for apidoc Cm|bool|TAINTING_get
996 Returns a boolean as to whether taint checking is enabled or not.
998 =for apidoc Cm|void|TAINTING_set|bool s
1000 Turn taint checking mode off/on
1002 =for apidoc Cm|bool|TAINT_WARN_get
1004 Returns false if tainting violations are fatal;
1005 Returns true if they're just warnings
1007 =for apidoc Cm|void|TAINT_WARN_set|bool s
1009 C<s> being true indicates L</C<TAINT_WARN_get>> should return that tainting
1010 violations are just warnings
1012 C<s> being false indicates L</C<TAINT_WARN_get>> should return that tainting
1013 violations are fatal.
1017 /* Set to tainted if we are running under tainting mode */
1018 # define TAINT (PL_tainted = PL_tainting)
1020 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
1021 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
1022 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
1023 /* croak or warn if tainting */
1024 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
1025 taint_proper(NULL, s); \
1027 # define TAINT_set(s) (PL_tainted = cBOOL(s))
1028 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
1029 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting)))
1030 # define TAINTING_set(s) (PL_tainting = cBOOL(s))
1031 # define TAINT_WARN_get (PL_taint_warn)
1032 # define TAINT_WARN_set(s) (PL_taint_warn = cBOOL(s))
1035 /* flags used internally only within pp_subst and pp_substcont */
1037 # define SUBST_TAINT_STR 1 /* string tainted */
1038 # define SUBST_TAINT_PAT 2 /* pattern tainted */
1039 # define SUBST_TAINT_REPL 4 /* replacement tainted */
1040 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
1041 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
1044 /* XXX All process group stuff is handled in pp_sys.c. Should these
1045 defines move there? If so, I could simplify this a lot. --AD 9/96.
1047 /* Process group stuff changed from traditional BSD to POSIX.
1048 perlfunc.pod documents the traditional BSD-style syntax, so we'll
1049 try to preserve that, if possible.
1052 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
1053 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
1054 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
1055 #elif defined(HAS_SETPGRP2)
1056 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
1058 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
1059 # define HAS_SETPGRP /* Well, effectively it does . . . */
1063 # define BSD_GETPGRP(pid) getpgid((pid))
1064 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
1065 # define BSD_GETPGRP(pid) getpgrp((pid))
1066 #elif defined(HAS_GETPGRP2)
1067 # define BSD_GETPGRP(pid) getpgrp2((pid))
1069 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
1070 # define HAS_GETPGRP /* Well, effectively it does . . . */
1073 /* These are not exact synonyms, since setpgrp() and getpgrp() may
1074 have different behaviors, but perl.h used to define USE_BSDPGRP
1075 (prior to 5.003_05) so some extension might depend on it.
1077 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
1078 # ifndef USE_BSDPGRP
1079 # define USE_BSDPGRP
1083 /* This define exists only for compatibility. It used to mean "my_setenv and
1084 * friends should use setenv/putenv, instead of manipulating environ directly",
1085 * which is now always the case. It's still defined to prevent XS modules from
1086 * using the no longer existing PL_use_safe_putenv variable.
1088 #define PERL_USE_SAFE_PUTENV
1090 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
1091 pthread.h must be included before all other header files.
1093 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
1094 # include <pthread.h>
1097 #include <sys/types.h>
1103 # include <stdarg.h>
1106 # include <stdint.h>
1113 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
1118 # include <locale.h>
1121 #ifdef NEED_XLOCALE_H
1122 # include <xlocale.h>
1125 #include "perl_langinfo.h" /* Needed for _NL_LOCALE_NAME */
1127 /* =========================================================================
1128 * The defines from here to the following ===== line are unfortunately
1129 * duplicated in makedef.pl, and changes here MUST also be made there */
1131 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
1132 * functions are available, or 2) just the setlocale() function. This logic is
1133 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
1135 #if ! defined(NO_LOCALE)
1136 # if ! defined(NO_POSIX_2008_LOCALE) \
1137 && defined(HAS_NEWLOCALE) \
1138 && defined(HAS_USELOCALE) \
1139 && defined(HAS_DUPLOCALE) \
1140 && defined(HAS_FREELOCALE) \
1141 && defined(LC_ALL_MASK)
1143 /* For simplicity, the code is written to assume that any platform advanced
1144 * enough to have the Posix 2008 locale functions has LC_ALL. The final
1145 * test above makes sure that assumption is valid */
1147 # define HAS_POSIX_2008_LOCALE
1149 # elif defined(HAS_SETLOCALE)
1154 /* end of makedef.pl logic duplication. But there are other groups below.
1155 * ========================================================================= */
1158 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
1162 /* Even if not using locales, this header should be #included so as to #define
1163 * some symbols which avoid #ifdefs to get things to compile. But make sure
1164 * the macro it calls does nothing */
1166 # undef PERL_LOCALE_TABLE_ENTRY
1167 # define PERL_LOCALE_TABLE_ENTRY(name, call_back)
1168 # include "locale_table.h"
1171 /* XXX The Configure probe for categories must be updated when adding new
1172 * categories here */
1174 /* Create an enum that allows translation between the arbitrary locale category
1175 * integers that a platform has, and our desired values that range from 0..n
1176 * which makes array indexing feasible.
1178 * In locale.c, there are a bunch of parallel arrays corresponding to this
1179 * enum. The first element of each corresponds with the first enum value here,
1180 * and so on. That means this enum must be in identical order with those
1181 * arrays. This is guaranteed by using locale_table.h in all instances.
1182 * (There are also asserts in locale.c that should fail if this gets
1183 * out-of-sync.) So, if the platform doesn't have LC_CTYPE, but does have
1184 * LC_NUMERIC, the code below will cause LC_NUMERIC_INDEX_ to be defined to be
1185 * 0. That way the foo_INDEX_ values are contiguous non-negative integers,
1186 * regardless of how the platform defines the actual locale categories.
1188 * It is possible to tell perl it is not to pay attention to certain categories
1189 * that exist on a platform (which means they are always kept in the "C"
1190 * locale). For the ones perl is supposed to pay attention to, The hdr file
1191 * creates a 'USE_LOCALE_foo' #define. If any are to be ignored by perl, it
1192 * #defines HAS_IGNORED_LOCALE_CATEGORIES_ */
1196 # undef PERL_LOCALE_TABLE_ENTRY
1197 # define PERL_LOCALE_TABLE_ENTRY(name, call_back) LC_ ## name ## _INDEX_,
1198 # include "locale_table.h"
1199 #endif /* USE_LOCALE */
1201 LC_ALL_INDEX_ /* Always defined, even if no LC_ALL on system */
1203 } locale_category_index;
1207 /* And a count of all the locale categories, mainly for use in array
1209 # define LOCALE_CATEGORIES_COUNT_ (LC_ALL_INDEX_ + 1)
1211 /* As a development aid for platforms that have LC_ALL name=value notation,
1212 * setting -Accflags=-DUSE_FAKE_LC_ALL_POSITIONAL_NOTATION, simulates a
1213 * platform that instead uses positional notation. By doing this, you can find
1214 * many bugs without trying it out on a real such platform. It would be
1215 * possible to create the reverse definitions for people who have ready access
1216 * to a posiional notation box, but harder to get a name=value box */
1217 # if defined(USE_FAKE_LC_ALL_POSITIONAL_NOTATION) \
1218 && defined(PERL_LC_ALL_USES_NAME_VALUE_PAIRS)
1219 # undef PERL_LC_ALL_USES_NAME_VALUE_PAIRS
1221 # define PERL_LC_ALL_CATEGORY_POSITIONS_INIT /* Assumes glibc cateories */\
1222 { 12, 11, 10, 9, 8, 7, 5, 4, 3, 2, 1, 0 }
1223 # define PERL_LC_ALL_SEPARATOR "/ = /"
1225 /* =========================================================================
1226 * The defines from here to the following ===== line are unfortunately
1227 * duplicated in makedef.pl, and changes here MUST also be made there */
1229 # if defined(USE_THREADS) && ! defined(NO_LOCALE_THREADS)
1230 # define USE_LOCALE_THREADS
1233 /* Use POSIX 2008 locales if available, and no alternative exists
1234 * ('setlocale()' is the alternative); or is threaded and not forbidden to
1236 # if ( defined(HAS_POSIX_2008_LOCALE) \
1237 && ( ! defined(HAS_SETLOCALE) \
1238 || ( defined(USE_LOCALE_THREADS) \
1239 && ! defined(NO_POSIX_2008_LOCALE))) \
1240 && ! defined(NO_THREAD_SAFE_LOCALE))
1241 # define USE_POSIX_2008_LOCALE
1244 /* On threaded builds, use thread-safe locales if they are available and not
1245 * forbidden. Availability is when we are using POSIX 2008 locales, or
1246 * Windows for any vintage recent enough to have _MSC_VER defined, or are
1247 * using UCRT (principally MINGW in this latter case) */
1248 # if defined(USE_LOCALE_THREADS) && ! defined(NO_THREAD_SAFE_LOCALE)
1249 # if defined(USE_POSIX_2008_LOCALE) \
1250 || (defined(WIN32) && (defined(_MSC_VER) || (defined(_UCRT))))
1251 # define USE_THREAD_SAFE_LOCALE
1255 # ifdef USE_POSIX_2008_LOCALE
1256 /* XXX experimentally use this undocumented GCC feature. (Below also
1257 * checks for its availability before actually using it.) */
1258 # ifndef USE_NL_LOCALE_NAME
1259 # define USE_NL_LOCALE_NAME
1261 # if defined(HAS_QUERYLOCALE) \
1262 /* Use querylocale if has it, or has the glibc internal \
1263 * undocumented equivalent. */ \
1264 || ( defined(_NL_LOCALE_NAME) \
1265 /* And is asked for */ \
1266 && defined(USE_NL_LOCALE_NAME) \
1267 /* nl_langinfo_l almost certainly will exist on systems that \
1268 * have _NL_LOCALE_NAME, so there is nothing lost by \
1269 * requiring it instead of also allowing plain nl_langinfo(). \
1270 * And experience indicates that its glibc implementation is \
1271 * thread-safe, eliminating code complications */ \
1272 && defined(HAS_NL_LANGINFO_L) \
1273 /* On systems that accept any locale name, the real \
1274 * underlying locale is often returned by this internal \
1275 * langinfo item, so we can't use it */ \
1276 && ! defined(SETLOCALE_ACCEPTS_ANY_LOCALE_NAME))
1277 # define USE_QUERYLOCALE
1281 /* POSIX 2008 has no means of finding out the current locale without a
1282 * querylocale; so must keep track of it ourselves */
1283 # if (defined(USE_POSIX_2008_LOCALE) && ! defined(USE_QUERYLOCALE))
1284 # define USE_PL_CURLOCALES
1289 /* We need to be able to map the current value of what the tTHX context
1290 * thinks LC_ALL is so as to inform the Windows libc when switching
1292 # if defined(USE_THREAD_SAFE_LOCALE)
1293 # define USE_PL_CUR_LC_ALL
1296 /* Assume MingW without UCRT has the broken localeconv() that Microsoft
1297 * fixed in VS 2015 */
1298 # if ! defined(_MSC_VER) && ! defined(_UCRT)
1299 # define TS_W32_BROKEN_LOCALECONV
1303 /* POSIX 2008 and Windows with thread-safe locales keep locale information
1304 * in libc data. Therefore we must inform their libc's when the context
1306 # if defined(MULTIPLICITY) && ( defined(USE_POSIX_2008_LOCALE) \
1307 || ( defined(WIN32) \
1308 && defined(USE_THREAD_SAFE_LOCALE)))
1309 # define USE_PERL_SWITCH_LOCALE_CONTEXT
1311 #endif /* End of USE_LOCALE */
1313 /* end of makedef.pl logic duplication
1314 * ========================================================================= */
1318 /* These typedefs are used in locale.c only (and documented there), but defined
1319 * here so that embed.fnc can generate the proper prototypes. */
1321 typedef enum { /* Is the locale UTF8? */
1324 LOCALE_UTF8NESS_UNKNOWN
1325 } locale_utf8ness_t;
1334 EXTERNAL_FORMAT_FOR_SET,
1335 EXTERNAL_FORMAT_FOR_QUERY
1336 } calc_LC_ALL_format;
1341 WANT_PL_setlocale_buf,
1342 } calc_LC_ALL_return;
1346 override_if_ignored,
1347 check_that_overridden
1348 } parse_LC_ALL_STRING_action;
1355 } parse_LC_ALL_string_return;
1362 # ifdef PARAM_NEEDS_TYPES
1363 # include <sys/types.h>
1365 # include <sys/param.h>
1368 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
1369 value something like 199306. This may be useful if no more-specific
1370 feature test is available.
1378 /* Use all the "standard" definitions */
1381 /* If this causes problems, set i_unistd=undef in the hint file. */
1383 # if defined(__amigaos4__)
1384 # ifdef I_NETINET_IN
1385 # include <netinet/in.h>
1388 # include <unistd.h>
1389 # if defined(__amigaos4__)
1390 /* Under AmigaOS 4 newlib.library provides an environ. However using
1391 * it doesn't give us enough control over inheritance of variables by
1392 * subshells etc. so replace with custom version based on abc-shell
1394 extern char **myenviron;
1396 # define environ myenviron
1402 # include <sys/wait.h>
1405 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1406 EXTERN_C int syscall(int, ...);
1409 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1410 EXTERN_C int usleep(unsigned int);
1413 /* Macros for correct constant construction. These are in C99 <stdint.h>
1414 * (so they will not be available in strict C89 mode), but they are nice, so
1415 * let's define them if necessary. */
1418 =for apidoc_section $integer
1419 =for apidoc Am|I16|INT16_C|number
1420 =for apidoc_item |I32|INT32_C|number
1421 =for apidoc_item |I64|INT64_C|number
1423 Returns a token the C compiler recognizes for the constant C<number> of the
1424 corresponding integer type on the machine.
1426 If the machine does not have a 64-bit type, C<INT64_C> is undefined.
1427 Use C<L</INTMAX_C>> to get the largest type available on the platform.
1429 =for apidoc Am|U16|UINT16_C|number
1430 =for apidoc_item |U32|UINT32_C|number
1431 =for apidoc_item |U64|UINT64_C|number
1433 Returns a token the C compiler recognizes for the constant C<number> of the
1434 corresponding unsigned integer type on the machine.
1436 If the machine does not have a 64-bit type, C<UINT64_C> is undefined.
1437 Use C<L</UINTMAX_C>> to get the largest type available on the platform.
1444 # define UINT16_C(x) ((U16_TYPE)x##U)
1446 # define UINT16_C(x) ((U16_TYPE)x##UL)
1452 # define UINT32_C(x) ((U32_TYPE)x##U)
1454 # define UINT32_C(x) ((U32_TYPE)x##UL)
1459 typedef intmax_t PERL_INTMAX_T;
1460 typedef uintmax_t PERL_UINTMAX_T;
1463 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1464 * actually mean what it has always been documented to mean (see RT #119753)
1465 * and is explicitly turned off outside of core with dire warnings about
1466 * removing the undef. */
1468 #if defined(QUADKIND)
1469 # undef PeRl_INT64_C
1470 # undef PeRl_UINT64_C
1471 /* Prefer the native integer types (int and long) over long long
1472 * (which is not C89) and Win32-specific __int64. */
1473 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1474 # define PeRl_INT64_C(c) (c)
1475 # define PeRl_UINT64_C(c) CAT2(c,U)
1477 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1478 # define PeRl_INT64_C(c) CAT2(c,L)
1479 # define PeRl_UINT64_C(c) CAT2(c,UL)
1481 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1482 # define PeRl_INT64_C(c) CAT2(c,LL)
1483 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1485 # if QUADKIND == QUAD_IS___INT64
1486 # define PeRl_INT64_C(c) CAT2(c,I64)
1487 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1489 # ifndef PeRl_INT64_C
1490 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1491 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1493 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1494 * not fly with C89-pedantic gcc, so let's undefine them first so that
1495 * we can redefine them with our native integer preferring versions. */
1496 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1501 # define INT64_C(c) PeRl_INT64_C(c)
1504 # define UINT64_C(c) PeRl_UINT64_C(c)
1508 =for apidoc_section $integer
1509 =for apidoc Am||INTMAX_C|number
1510 Returns a token the C compiler recognizes for the constant C<number> of the
1511 widest integer type on the machine. For example, if the machine has C<long
1512 long>s, C<INTMAX_C(-1)> would yield
1516 See also, for example, C<L</INT32_C>>.
1518 Use L</IV> to declare variables of the maximum usable size on this platform.
1520 =for apidoc Am||UINTMAX_C|number
1521 Returns a token the C compiler recognizes for the constant C<number> of the
1522 widest unsigned integer type on the machine. For example, if the machine has
1523 C<long>s, C<UINTMAX_C(1)> would yield
1527 See also, for example, C<L</UINT32_C>>.
1529 Use L</UV> to declare variables of the maximum usable size on this platform.
1535 typedef I64TYPE PERL_INTMAX_T;
1536 typedef U64TYPE PERL_UINTMAX_T;
1539 # define INTMAX_C(c) INT64_C(c)
1542 # define UINTMAX_C(c) UINT64_C(c)
1545 #else /* below QUADKIND is undefined */
1547 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1549 typedef I32TYPE PERL_INTMAX_T;
1550 typedef U32TYPE PERL_UINTMAX_T;
1553 # define INTMAX_C(c) INT32_C(c)
1556 # define UINTMAX_C(c) UINT32_C(c)
1559 #endif /* no QUADKIND */
1563 /* byte-swapping functions for big-/little-endian conversion */
1564 # define _swab_16_(x) ((U16)( \
1565 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1566 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1568 # define _swab_32_(x) ((U32)( \
1569 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1570 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1571 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1572 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1575 # define _swab_64_(x) ((U64)( \
1576 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1577 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1578 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1579 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1580 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1581 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1582 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1583 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1586 /* Maximum level of recursion */
1587 #ifndef PERL_SUB_DEPTH_WARN
1588 #define PERL_SUB_DEPTH_WARN 100
1591 #endif /* PERL_CORE */
1593 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1594 * It determines the size of local arrays in S_maybe_multiconcat() and
1597 #define PERL_MULTICONCAT_MAXARG 64
1599 /* The indexes of fields of a multiconcat aux struct.
1600 * The fixed fields are followed by nargs+1 const segment lengths,
1601 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1604 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1605 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1606 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1607 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1608 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1609 #define PERL_MULTICONCAT_IX_PADTMP0 5 /* up to 3 pad indexes for PADTMPs */
1610 #define PERL_MULTICONCAT_IX_PADTMP1 6
1611 #define PERL_MULTICONCAT_IX_PADTMP2 7
1612 #define PERL_MULTICONCAT_IX_LENGTHS 8 /* first of nargs+1 const segment lens */
1613 #define PERL_MULTICONCAT_HEADER_SIZE 8 /* The number of fields of a
1614 multiconcat header */
1616 /* We no longer default to creating a new SV for GvSV.
1617 Do this before embed. */
1618 #ifndef PERL_CREATE_GVSV
1619 # ifndef PERL_DONT_CREATE_GVSV
1620 # define PERL_DONT_CREATE_GVSV
1624 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1625 #define PERL_USES_PL_PIDSTATUS
1628 #if !defined(OS2) && !defined(WIN32)
1629 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1632 #define MEM_SIZE Size_t
1634 /* av_extend and analogues enforce a minimum number of array elements.
1635 * This has been 4 elements (so a minimum key size of 3) for a long
1636 * time, but the rationale behind this seems to have been lost to the
1638 #ifndef PERL_ARRAY_NEW_MIN_KEY
1639 #define PERL_ARRAY_NEW_MIN_KEY 3
1642 /* Functions like Perl_sv_grow mandate a minimum string size.
1643 * This was 10 bytes for a long time, the rationale for which seems lost
1644 * to the mists of time. However, this does not correlate to what modern
1645 * malloc implementations will actually return, in particular the fact
1646 * that chunks are almost certainly some multiple of pointer size. The
1647 * default has therefore been revised to a more useful approximation.
1648 * Notes: The following is specifically conservative for 64 bit, since
1649 * most dlmalloc derivatives seem to serve a 3xPTRSIZE minimum chunk,
1650 * so the below perhaps should be:
1651 * ((PTRSIZE == 4) ? 12 : 24)
1652 * Configure probes for malloc_good_size, malloc_actual_size etc.
1653 * could be revised to record the actual minimum chunk size, to which
1654 * PERL_STRLEN_NEW_MIN could then be set.
1656 #ifndef PERL_STRLEN_NEW_MIN
1657 #define PERL_STRLEN_NEW_MIN ((PTRSIZE == 4) ? 12 : 16)
1660 /* Round all values passed to malloc up, by default to a multiple of
1663 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1664 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1667 /* sv_grow() will expand strings by at least a certain percentage of
1668 the previously *used* length to avoid excessive calls to realloc().
1669 The default is 25% of the current length.
1671 #ifndef PERL_STRLEN_EXPAND_SHIFT
1672 # define PERL_STRLEN_EXPAND_SHIFT 2
1675 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1676 * onwards) when building Socket.xs, but we can just use a different definition
1677 * for STRUCT_OFFSET instead. */
1678 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1679 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1681 # include <stddef.h>
1682 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1685 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1686 * in C89, but apparently there are platforms where it doesn't exist. See
1687 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1689 #ifdef PERL_GCC_PEDANTIC
1690 # undef HAS_PTRDIFF_T
1693 #ifdef HAS_PTRDIFF_T
1694 # define Ptrdiff_t ptrdiff_t
1696 # define Ptrdiff_t SSize_t
1699 # include <string.h>
1701 /* This comes after <stdlib.h> so we don't try to change the standard
1702 * library prototypes; we'll use our own in proto.h instead. */
1705 # ifdef PERL_POLLUTE_MALLOC
1706 # ifndef PERL_EXTMALLOC_DEF
1707 # define Perl_malloc malloc
1708 # define Perl_calloc calloc
1709 # define Perl_realloc realloc
1710 # define Perl_mfree free
1713 # define EMBEDMYMALLOC /* for compatibility */
1716 # define safemalloc Perl_malloc
1717 # define safecalloc Perl_calloc
1718 # define saferealloc Perl_realloc
1719 # define safefree Perl_mfree
1720 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1721 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1724 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1725 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1726 # define panic_write2(s) write(2, s, strlen(s))
1727 # define CHECK_MALLOC_TAINT(newval) \
1728 CHECK_MALLOC_TOO_LATE_FOR_( \
1730 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1732 # define MALLOC_CHECK_TAINT(argc,argv,env) \
1734 if (doing_taint(argc,argv,env)) { \
1735 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1738 #else /* MYMALLOC */
1739 # define safemalloc safesysmalloc
1740 # define safecalloc safesyscalloc
1741 # define saferealloc safesysrealloc
1742 # define safefree safesysfree
1743 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1744 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1745 # define MALLOC_CHECK_TAINT(argc,argv,env)
1746 #endif /* MYMALLOC */
1748 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1749 #define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what)
1750 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1751 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1752 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1755 =for apidoc Am|void|memzero|void * d|Size_t l
1756 Set the C<l> bytes starting at C<*d> to all zeroes.
1761 # define memzero(d,l) memset(d,0,l)
1765 # include <netinet/in.h>
1769 # include <arpa/inet.h>
1773 # include <sys/stat.h>
1776 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1777 This definition should ideally go into win32/win32.h, but S_IFIFO is
1778 used later here in perl.h before win32/win32.h is being included. */
1779 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1780 # define S_IFIFO _S_IFIFO
1783 /* The stat macros for Unisoft System V/88 (and derivatives
1784 like UTekV) are broken, sometimes giving false positives. Undefine
1785 them here and let the code below set them to proper values.
1787 The ghs macro stands for GreenHills Software C-1.8.5 which
1788 is the C compiler for sysV88 and the various derivatives.
1789 This header file bug is corrected in gcc-2.5.8 and later versions.
1790 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1792 #if defined(m88k) && defined(ghs)
1804 # ifdef I_SYS_TIME_KERNEL
1807 # include <sys/time.h>
1808 # ifdef I_SYS_TIME_KERNEL
1813 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1814 # include <sys/times.h>
1819 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1820 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1823 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1824 # include <sys/socket.h>
1825 # if defined(USE_SOCKS) && defined(I_SOCKS)
1826 # if !defined(INCLUDE_PROTOTYPES)
1827 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1828 # define PERL_SOCKS_NEED_PROTOTYPES
1831 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1832 # undef INCLUDE_PROTOTYPES
1833 # undef PERL_SOCKS_NEED_PROTOTYPES
1841 # include <net/errno.h>
1846 /* sockatmark() is so new (2001) that many places might have it hidden
1847 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1848 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1849 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1850 # if defined(__THROW) && defined(__GLIBC__)
1851 int sockatmark(int) __THROW;
1853 int sockatmark(int);
1857 #if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */
1858 EXTERN_C int fchdir(int);
1859 EXTERN_C int flock(int, int);
1860 EXTERN_C int fseeko(FILE *, off_t, int);
1861 EXTERN_C off_t ftello(FILE *);
1864 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1865 EXTERN_C char *crypt(const char *, const char *);
1868 #if defined(__cplusplus) && defined(__CYGWIN__)
1869 EXTERN_C char *crypt(const char *, const char *);
1873 =for apidoc_section $errno
1875 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1877 Set C<errno>, and on VMS set C<vaxc$errno>.
1879 =for apidoc mn|void|dSAVEDERRNO
1881 Declare variables needed to save C<errno> and any operating system
1882 specific error number.
1884 =for apidoc mn|void|dSAVE_ERRNO
1886 Declare variables needed to save C<errno> and any operating system
1887 specific error number, and save them for optional later restoration
1888 by C<RESTORE_ERRNO>.
1890 =for apidoc mn|void|SAVE_ERRNO
1892 Save C<errno> and any operating system specific error number for
1893 optional later restoration by C<RESTORE_ERRNO>. Requires
1894 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1896 =for apidoc mn|void|RESTORE_ERRNO
1898 Restore C<errno> and any operating system specific error number that
1899 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1905 # undef SETERRNO /* SOCKS might have defined this */
1908 #if defined(VMS) || defined(WIN32) || defined(OS2)
1909 # define HAS_EXTENDED_OS_ERRNO
1910 # define get_extended_os_errno() Perl_get_extended_os_errno()
1912 # define get_extended_os_errno() errno
1915 # define SETERRNO(errcode,vmserrcode) \
1917 set_errno(errcode); \
1918 set_vaxc_errno(vmserrcode); \
1920 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1921 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1922 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1923 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1925 # define LIB_INVARG LIB$_INVARG
1926 # define RMS_DIR RMS$_DIR
1927 # define RMS_FAC RMS$_FAC
1928 # define RMS_FEX RMS$_FEX
1929 # define RMS_FNF RMS$_FNF
1930 # define RMS_IFI RMS$_IFI
1931 # define RMS_ISI RMS$_ISI
1932 # define RMS_PRV RMS$_PRV
1933 # define SS_ACCVIO SS$_ACCVIO
1934 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1935 # define SS_IVCHAN SS$_IVCHAN
1936 # define SS_NORMAL SS$_NORMAL
1937 # define SS_NOPRIV SS$_NOPRIV
1938 # define SS_BUFFEROVF SS$_BUFFEROVF
1940 # define LIB_INVARG 0
1948 # define SS_ACCVIO 0
1949 # define SS_DEVOFFLINE 0
1950 # define SS_IVCHAN 0
1951 # define SS_NORMAL 0
1952 # define SS_NOPRIV 0
1953 # define SS_BUFFEROVF 0
1957 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1958 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1959 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1960 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1964 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1965 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1966 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1967 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1971 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1975 # define dSAVEDERRNO int saved_errno
1976 # define dSAVE_ERRNO int saved_errno = errno
1977 # define SAVE_ERRNO (saved_errno = errno)
1978 # define RESTORE_ERRNO (errno = saved_errno)
1982 =for apidoc_section $warning
1984 =for apidoc Amn|SV *|ERRSV
1986 Returns the SV for C<$@>, creating it if needed.
1988 =for apidoc Am|void|CLEAR_ERRSV
1990 Clear the contents of C<$@>, setting it to the empty string.
1992 This replaces any read-only SV with a fresh SV and removes any magic.
1994 =for apidoc Am|void|SANE_ERRSV
1996 Clean up ERRSV so we can safely set it.
1998 This replaces any read-only SV with a fresh writable copy and removes
2004 #define ERRSV GvSVn(PL_errgv)
2006 /* contains inlined gv_add_by_type */
2007 #define CLEAR_ERRSV() STMT_START { \
2008 SV ** const svp = &GvSV(PL_errgv); \
2010 *svp = newSVpvs(""); \
2011 } else if (SvREADONLY(*svp)) { \
2012 SvREFCNT_dec_NN(*svp); \
2013 *svp = newSVpvs(""); \
2015 SV *const errsv = *svp; \
2017 SvPOK_only(errsv); \
2018 if (SvMAGICAL(errsv)) { \
2024 /* contains inlined gv_add_by_type */
2025 #define SANE_ERRSV() STMT_START { \
2026 SV ** const svp = &GvSV(PL_errgv); \
2028 *svp = newSVpvs(""); \
2029 } else if (SvREADONLY(*svp)) { \
2030 SV *dupsv = newSVsv(*svp); \
2031 SvREFCNT_dec_NN(*svp); \
2034 SV *const errsv = *svp; \
2035 if (SvMAGICAL(errsv)) { \
2043 # define DEFSV (0 + GvSVn(PL_defgv))
2044 # define DEFSV_set(sv) \
2045 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
2046 # define SAVE_DEFSV \
2048 save_gp(PL_defgv, 0), \
2049 GvINTRO_off(PL_defgv), \
2050 SAVEGENERICSV(GvSV(PL_defgv)), \
2051 GvSV(PL_defgv) = NULL \
2054 # define DEFSV GvSVn(PL_defgv)
2055 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
2056 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
2060 =for apidoc_section $SV
2061 =for apidoc Amn|SV *|DEFSV
2062 Returns the SV associated with C<$_>
2064 =for apidoc Am|void|DEFSV_set|SV * sv
2065 Associate C<sv> with C<$_>
2067 =for apidoc Amn|void|SAVE_DEFSV
2068 Localize C<$_>. See L<perlguts/Localizing changes>.
2074 extern int errno; /* ANSI allows errno to be an lvalue expr.
2075 * For example in multithreaded environments
2076 * something like this might happen:
2077 * extern int *_errno(void);
2078 * #define errno (*_errno()) */
2081 #define UNKNOWN_ERRNO_MSG "(unknown)"
2084 #define Strerror(e) strerror((e), vaxc$errno)
2086 #define Strerror(e) strerror(e)
2091 # include <sys/ioctl.h>
2095 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
2096 # ifdef HAS_SOCKETPAIR
2097 # undef HAS_SOCKETPAIR
2104 #ifndef HAS_SOCKETPAIR
2106 # define socketpair Perl_my_socketpair
2111 # define htoni htons
2112 # define ntohi ntohs
2114 # define htoni htonl
2115 # define ntohi ntohl
2118 /* Configure already sets Direntry_t */
2119 #if defined(I_DIRENT)
2120 # include <dirent.h>
2121 #elif defined(I_SYS_NDIR)
2122 # include <sys/ndir.h>
2123 #elif defined(I_SYS_DIR)
2124 # include <sys/dir.h>
2128 * The following gobbledygook brought to you on behalf of __STDC__.
2129 * (I could just use #ifndef __STDC__, but this is more bulletproof
2130 * in the face of half-implementations.)
2133 #if defined(I_SYSMODE)
2134 #include <sys/mode.h>
2139 # define S_IFMT _S_IFMT
2141 # define S_IFMT 0170000
2146 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
2150 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
2155 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
2157 # define S_ISBLK(m) (0)
2162 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
2167 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
2169 # define S_ISFIFO(m) (0)
2175 # define S_ISLNK(m) _S_ISLNK(m)
2176 # elif defined(_S_IFLNK)
2177 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
2178 # elif defined(S_IFLNK)
2179 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
2181 # define S_ISLNK(m) (0)
2187 # define S_ISSOCK(m) _S_ISSOCK(m)
2188 # elif defined(_S_IFSOCK)
2189 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
2190 # elif defined(S_IFSOCK)
2191 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
2193 # define S_ISSOCK(m) (0)
2199 # define S_IRUSR S_IREAD
2200 # define S_IWUSR S_IWRITE
2201 # define S_IXUSR S_IEXEC
2203 # define S_IRUSR 0400
2204 # define S_IWUSR 0200
2205 # define S_IXUSR 0100
2211 # define S_IRGRP (S_IRUSR>>3)
2212 # define S_IWGRP (S_IWUSR>>3)
2213 # define S_IXGRP (S_IXUSR>>3)
2215 # define S_IRGRP 0040
2216 # define S_IWGRP 0020
2217 # define S_IXGRP 0010
2223 # define S_IROTH (S_IRUSR>>6)
2224 # define S_IWOTH (S_IWUSR>>6)
2225 # define S_IXOTH (S_IXUSR>>6)
2227 # define S_IROTH 0040
2228 # define S_IWOTH 0020
2229 # define S_IXOTH 0010
2234 # define S_ISUID 04000
2238 # define S_ISGID 02000
2242 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
2246 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
2250 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
2253 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
2254 * which would get included through <sys/file.h >, but that is 3000
2255 * lines in the future. --jhi */
2257 #if !defined(S_IREAD) && !defined(__HAIKU__)
2258 # define S_IREAD S_IRUSR
2261 #if !defined(S_IWRITE) && !defined(__HAIKU__)
2262 # define S_IWRITE S_IWUSR
2266 # define S_IEXEC S_IXUSR
2269 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
2270 # define SLOPPYDIVIDE
2277 /* This used to be conditionally defined based on whether we had a sprintf()
2278 * that correctly returns the string length (as required by C89), but we no
2279 * longer need that. XS modules can (and do) use this name, so it must remain
2280 * a part of the API that's visible to modules.
2282 =for apidoc_section $string
2283 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
2285 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
2290 #define my_sprintf sprintf
2293 * If we have v?snprintf() and the C99 variadic macros, we can just
2294 * use just the v?snprintf(). It is nice to try to trap the buffer
2295 * overflow, however, so if we are DEBUGGING, and we cannot use the
2296 * gcc statement expressions, then use the function wrappers which try
2297 * to trap the overflow. If we can use the gcc statement expressions,
2298 * we can try that even with the version that uses the C99 variadic
2302 /* Note that we do not check against snprintf()/vsnprintf() returning
2303 * negative values because that is non-standard behaviour and we use
2304 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
2305 * that should be true only if the snprintf()/vsnprintf() are true
2306 * to the standard. */
2308 #define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len > (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END
2310 #if defined(USE_LOCALE_NUMERIC) || defined(USE_QUADMATH)
2311 # define my_snprintf Perl_my_snprintf
2312 # define PERL_MY_SNPRINTF_GUARDED
2313 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
2314 # ifdef PERL_USE_GCC_BRACE_GROUPS
2315 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
2316 # define PERL_MY_SNPRINTF_GUARDED
2318 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
2321 # define my_snprintf Perl_my_snprintf
2322 # define PERL_MY_SNPRINTF_GUARDED
2325 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
2326 * dies if called under USE_QUADMATH. */
2327 #if ! defined(USE_LOCALE_NUMERIC) \
2328 && defined(HAS_VSNPRINTF) \
2329 && defined(HAS_C99_VARIADIC_MACROS) \
2330 && ! (defined(DEBUGGING) && ! defined(PERL_USE_GCC_BRACE_GROUPS)) \
2331 && ! defined(PERL_GCC_PEDANTIC)
2332 # ifdef PERL_USE_GCC_BRACE_GROUPS
2333 # define my_vsnprintf(buffer, max, ...) \
2334 ({ int len = vsnprintf(buffer, max, __VA_ARGS__); \
2335 PERL_SNPRINTF_CHECK(len, max, vsnprintf); \
2337 # define PERL_MY_VSNPRINTF_GUARDED
2339 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
2342 # define my_vsnprintf Perl_my_vsnprintf
2343 # define PERL_MY_VSNPRINTF_GUARDED
2346 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
2347 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
2348 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
2349 * completely ignore it: otherwise you cannot know whether your output
2352 * int len = my_sprintf(buf, max, ...);
2353 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
2355 * The trick is that in certain platforms [a] the my_sprintf() already
2356 * contains the sanity check, while in certain platforms [b] it needs
2357 * to be done as a separate step. The POST_GUARD is that step-- in [a]
2358 * platforms the POST_GUARD actually does nothing since the check has
2359 * already been done. Watch out for the max being the same in both calls.
2361 * If you actually use the snprintf/vsnprintf return value already,
2362 * you assumedly are checking its validity somehow. But you can
2363 * insert the POST_GUARD() also in that case. */
2365 #ifndef PERL_MY_SNPRINTF_GUARDED
2366 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
2368 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
2371 #ifndef PERL_MY_VSNPRINTF_GUARDED
2372 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
2374 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
2378 # define my_strlcat strlcat
2381 #if defined(PERL_CORE) || defined(PERL_EXT)
2383 # define my_memrchr memrchr
2385 # define my_memrchr S_my_memrchr
2390 # define my_strlcpy strlcpy
2394 # define my_strnlen strnlen
2398 The IV type is supposed to be long enough to hold any integral
2400 --Andy Dougherty August 1996
2406 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
2407 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
2408 # define IV_MAX ((IV)INT64_MAX)
2409 # define IV_MIN ((IV)INT64_MIN)
2410 # define UV_MAX ((UV)UINT64_MAX)
2412 # define UINT64_MIN 0
2414 # define UV_MIN ((UV)UINT64_MIN)
2416 # define IV_MAX PERL_QUAD_MAX
2417 # define IV_MIN PERL_QUAD_MIN
2418 # define UV_MAX PERL_UQUAD_MAX
2419 # define UV_MIN PERL_UQUAD_MIN
2424 # if defined(INT32_MAX) && IVSIZE == 4
2425 # define IV_MAX ((IV)INT32_MAX)
2426 # define IV_MIN ((IV)INT32_MIN)
2427 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
2428 # define UV_MAX ((UV)UINT32_MAX)
2430 # define UV_MAX ((UV)4294967295U)
2433 # define UINT32_MIN 0
2435 # define UV_MIN ((UV)UINT32_MIN)
2437 # define IV_MAX PERL_LONG_MAX
2438 # define IV_MIN PERL_LONG_MIN
2439 # define UV_MAX PERL_ULONG_MAX
2440 # define UV_MIN PERL_ULONG_MIN
2451 #if !defined(PERL_CORE)
2452 /* We think that removing this decade-old undef this will cause too much
2453 breakage on CPAN for too little gain. (See RT #119753)
2454 However, we do need HAS_QUAD in the core for use by the drand48 code. */
2460 #define Size_t_MAX (~(Size_t)0)
2461 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
2463 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
2464 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
2466 #ifndef NO_PERL_PRESERVE_IVUV
2467 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
2471 * The macros INT2PTR and NUM2PTR are (despite their names)
2472 * bi-directional: they will convert int/float to or from pointers.
2473 * However the conversion to int/float are named explicitly:
2474 * PTR2IV, PTR2UV, PTR2NV.
2476 * For int conversions we do not need two casts if pointers are
2477 * the same size as IV and UV. Otherwise we need an explicit
2478 * cast (PTRV) to avoid compiler warnings.
2480 * These are mentioned in perlguts
2482 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2484 # define INT2PTR(any,d) (any)(d)
2485 #elif PTRSIZE == LONGSIZE
2486 # define PTRV unsigned long
2487 # define PTR2ul(p) (unsigned long)(p)
2489 # define PTRV unsigned
2493 # define INT2PTR(any,d) (any)(PTRV)(d)
2497 # define PTR2ul(p) INT2PTR(unsigned long,p)
2501 =for apidoc_section $casting
2502 =for apidoc Cyh|type|NUM2PTR|type|int value
2503 You probably want to be using L<C</INT2PTR>> instead.
2508 #define NUM2PTR(any,d) (any)(PTRV)(d)
2509 #define PTR2IV(p) INT2PTR(IV,p)
2510 #define PTR2UV(p) INT2PTR(UV,p)
2511 #define PTR2NV(p) NUM2PTR(NV,p)
2512 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2514 /* According to strict ANSI C89 one cannot freely cast between
2515 * data pointers and function (code) pointers. There are at least
2516 * two ways around this. One (used below) is to do two casts,
2517 * first the other pointer to an (unsigned) integer, and then
2518 * the integer to the other pointer. The other way would be
2519 * to use unions to "overlay" the pointers. For an example of
2520 * the latter technique, see union dirpu in struct xpvio in sv.h.
2521 * The only feasible use is probably temporarily storing
2522 * function pointers in a data pointer (such as a void pointer). */
2524 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2525 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2527 #ifdef USE_LONG_DOUBLE
2528 # if LONG_DOUBLESIZE == DOUBLESIZE
2529 # define LONG_DOUBLE_EQUALS_DOUBLE
2530 # undef USE_LONG_DOUBLE /* Ouch! */
2534 /* The following is all to get LDBL_DIG, in order to pick a nice
2535 default value for printing floating point numbers in Gconvert.
2538 #ifndef HAS_LDBL_DIG
2539 # if LONG_DOUBLESIZE == 10
2540 # define LDBL_DIG 18 /* assume IEEE */
2541 # elif LONG_DOUBLESIZE == 12
2542 # define LDBL_DIG 18 /* gcc? */
2543 # elif LONG_DOUBLESIZE == 16
2544 # define LDBL_DIG 33 /* assume IEEE */
2545 # elif LONG_DOUBLESIZE == DOUBLESIZE
2546 # define LDBL_DIG DBL_DIG /* bummer */
2550 /* On MS Windows,with 64-bit mingw-w64 compilers, we
2551 need to attend to a __float128 alignment issue if
2552 USE_QUADMATH is defined. Otherwise we simply:
2554 32-bit mingw.org compilers might also require
2555 aligned(32) - at least that's what I found with my
2556 Math::Foat128 module. But this is as yet untested
2557 here, so no allowance is being made for mingw.org
2558 compilers at this stage. -- sisyphus January 2021
2560 #if (defined(USE_LONG_DOUBLE) || defined(USE_QUADMATH)) && defined(__MINGW64__)
2561 /* 64-bit build, mingw-w64 compiler only */
2562 typedef NVTYPE NV __attribute__ ((aligned(8)));
2568 # include <ieeefp.h>
2571 #if defined(__DECC) && defined(__osf__)
2572 /* Also Tru64 cc has broken NaN comparisons. */
2573 # define NAN_COMPARE_BROKEN
2576 # define NAN_COMPARE_BROKEN
2579 #ifdef USE_LONG_DOUBLE
2581 # include <sunmath.h>
2583 # if defined(LDBL_DIG)
2584 # define NV_DIG LDBL_DIG
2585 # ifdef LDBL_MANT_DIG
2586 # define NV_MANT_DIG LDBL_MANT_DIG
2589 # define NV_MIN LDBL_MIN
2592 # define NV_MAX LDBL_MAX
2594 # ifdef LDBL_MIN_EXP
2595 # define NV_MIN_EXP LDBL_MIN_EXP
2597 # ifdef LDBL_MAX_EXP
2598 # define NV_MAX_EXP LDBL_MAX_EXP
2600 # ifdef LDBL_MIN_10_EXP
2601 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2603 # ifdef LDBL_MAX_10_EXP
2604 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2606 # ifdef LDBL_EPSILON
2607 # define NV_EPSILON LDBL_EPSILON
2610 # define NV_MAX LDBL_MAX
2611 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2612 # elif defined(HUGE_VALL)
2613 # define NV_MAX HUGE_VALL
2616 # if defined(HAS_SQRTL)
2617 # define Perl_acos acosl
2618 # define Perl_asin asinl
2619 # define Perl_atan atanl
2620 # define Perl_atan2 atan2l
2621 # define Perl_ceil ceill
2622 # define Perl_cos cosl
2623 # define Perl_cosh coshl
2624 # define Perl_exp expl
2625 # define Perl_fabs fabsl
2626 # define Perl_floor floorl
2627 # define Perl_fmod fmodl
2628 # define Perl_log logl
2629 # define Perl_log10 log10l
2630 # define Perl_pow powl
2631 # define Perl_sin sinl
2632 # define Perl_sinh sinhl
2633 # define Perl_sqrt sqrtl
2634 # define Perl_tan tanl
2635 # define Perl_tanh tanhl
2637 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2640 # define Perl_modf(x,y) modfl(x,y)
2641 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2642 prototype in <math.h> */
2643 # ifndef HAS_MODFL_PROTO
2644 EXTERN_C long double modfl(long double, long double *);
2646 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2647 extern long double Perl_my_modfl(long double x, long double *ip);
2648 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2653 # define Perl_frexp(x,y) frexpl(x,y)
2654 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2655 extern long double Perl_my_frexpl(long double x, int *e);
2656 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2661 # define Perl_ldexp(x, y) ldexpl(x,y)
2662 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2663 # define Perl_ldexp(x,y) scalbnl(x,y)
2667 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2668 # define Perl_isnan(x) isnanl(x)
2669 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2670 # define Perl_isnan(x) isnan(x)
2674 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2675 # define Perl_isinf(x) isinfl(x)
2676 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2677 # define Perl_isinf(x) isinf(x)
2678 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2679 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2682 # ifndef Perl_isfinite
2683 # define Perl_isfinite(x) Perl_isfinitel(x)
2685 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2686 # include <quadmath.h>
2687 # define NV_DIG FLT128_DIG
2688 # define NV_MANT_DIG FLT128_MANT_DIG
2689 # define NV_MIN FLT128_MIN
2690 # define NV_MAX FLT128_MAX
2691 # define NV_MIN_EXP FLT128_MIN_EXP
2692 # define NV_MAX_EXP FLT128_MAX_EXP
2693 # define NV_EPSILON FLT128_EPSILON
2694 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2695 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2696 # define Perl_acos acosq
2697 # define Perl_asin asinq
2698 # define Perl_atan atanq
2699 # define Perl_atan2 atan2q
2700 # define Perl_ceil ceilq
2701 # define Perl_cos cosq
2702 # define Perl_cosh coshq
2703 # define Perl_exp expq
2704 # define Perl_fabs fabsq
2705 # define Perl_floor floorq
2706 # define Perl_fmod fmodq
2707 # define Perl_log logq
2708 # define Perl_log10 log10q
2709 # define Perl_signbit signbitq
2710 # define Perl_pow powq
2711 # define Perl_sin sinq
2712 # define Perl_sinh sinhq
2713 # define Perl_sqrt sqrtq
2714 # define Perl_tan tanq
2715 # define Perl_tanh tanhq
2716 # define Perl_modf(x,y) modfq(x,y)
2717 # define Perl_frexp(x,y) frexpq(x,y)
2718 # define Perl_ldexp(x, y) ldexpq(x,y)
2719 # define Perl_isinf(x) isinfq(x)
2720 # define Perl_isnan(x) isnanq(x)
2721 # define Perl_isfinite(x) (!(isnanq(x) || isinfq(x)))
2722 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2723 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2724 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2725 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2726 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2727 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2729 # define NV_DIG DBL_DIG
2730 # define NV_MANT_DIG DBL_MANT_DIG
2731 # define NV_MIN DBL_MIN
2732 # define NV_MAX DBL_MAX
2733 # define NV_MIN_EXP DBL_MIN_EXP
2734 # define NV_MAX_EXP DBL_MAX_EXP
2735 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2736 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2737 # define NV_EPSILON DBL_EPSILON
2738 # define NV_MAX DBL_MAX
2739 # define NV_MIN DBL_MIN
2741 /* These math interfaces are C89. */
2742 # define Perl_acos acos
2743 # define Perl_asin asin
2744 # define Perl_atan atan
2745 # define Perl_atan2 atan2
2746 # define Perl_ceil ceil
2747 # define Perl_cos cos
2748 # define Perl_cosh cosh
2749 # define Perl_exp exp
2750 # define Perl_fabs fabs
2751 # define Perl_floor floor
2752 # define Perl_fmod fmod
2753 # define Perl_log log
2754 # define Perl_log10 log10
2755 # define Perl_pow pow
2756 # define Perl_sin sin
2757 # define Perl_sinh sinh
2758 # define Perl_sqrt sqrt
2759 # define Perl_tan tan
2760 # define Perl_tanh tanh
2762 # define Perl_modf(x,y) modf(x,y)
2763 # define Perl_frexp(x,y) frexp(x,y)
2764 # define Perl_ldexp(x,y) ldexp(x,y)
2768 # define Perl_isnan(x) isnan(x)
2772 # if defined(HAS_ISINF)
2773 # define Perl_isinf(x) isinf(x)
2774 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2775 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2778 # ifndef Perl_isfinite
2779 # ifdef HAS_ISFINITE
2780 # define Perl_isfinite(x) isfinite(x)
2781 # elif defined(HAS_FINITE)
2782 # define Perl_isfinite(x) finite(x)
2787 /* fpclassify(): C99. It is supposed to be a macro that switches on
2788 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2789 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2791 # if defined(FP_INFINITE) && defined(FP_NAN)
2792 # define Perl_fp_class(x) fpclassify(x)
2793 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2794 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2795 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2796 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2797 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2798 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2799 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2800 * actually not the C99 fpclassify, with its own set of return defines. */
2801 # define Perl_fp_class(x) fpclassify(x)
2802 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2803 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2804 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2805 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2806 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2807 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2808 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2809 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2810 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2811 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2813 # undef Perl_fp_class /* Unknown set of defines */
2817 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2818 * are identical to the C99 fpclassify(). */
2819 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2822 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2824 /* oh, and the isnormal macro has a typo in it! */
2826 # define isnormal(x) Perl_fp_class_norm(x)
2828 # if defined(FP_INFINITE) && defined(FP_NAN)
2829 # define Perl_fp_class(x) fp_classify(x)
2830 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2831 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2832 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2833 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2834 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2836 # undef Perl_fp_class /* Unknown set of defines */
2840 /* Feel free to check with me for the SGI manpages, SGI testing,
2841 * etcetera, if you want to try getting this to work with IRIX.
2843 * - Allen <allens@cpan.org> */
2845 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2846 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2847 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2848 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2849 * Define some symbols also as cpp symbols so we can detect them. */
2850 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2851 # define FP_PINF FP_PINF
2852 # define FP_QNAN FP_QNAN
2856 # include <ieeefp.h>
2861 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2862 # define Perl_fp_class(x) fpclassl(x)
2864 # define Perl_fp_class(x) fpclass(x)
2866 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2867 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2868 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2869 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2870 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2871 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2872 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2873 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2874 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2875 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2876 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2877 # elif defined(FP_PINF) && defined(FP_QNAN)
2878 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2879 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2880 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2881 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2882 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2883 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2884 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2885 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2886 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2887 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2889 # undef Perl_fp_class /* Unknown set of defines */
2893 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2894 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2896 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2897 # include <fp_class.h>
2899 # if defined(FP_POS_INF) && defined(FP_QNAN)
2900 # ifdef __sgi /* XXX Configure test instead */
2901 # ifdef USE_LONG_DOUBLE
2902 # define Perl_fp_class(x) fp_class_l(x)
2904 # define Perl_fp_class(x) fp_class_d(x)
2907 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2908 # define Perl_fp_class(x) fp_classl(x)
2910 # define Perl_fp_class(x) fp_class(x)
2913 # if defined(FP_POS_INF) && defined(FP_QNAN)
2914 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2915 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2916 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2917 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2918 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2919 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2920 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2921 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2922 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2923 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2925 # undef Perl_fp_class /* Unknown set of defines */
2930 /* class(), _class(): Legacy: AIX. */
2931 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2933 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2935 # define Perl_fp_class(x) class(x)
2937 # define Perl_fp_class(x) _class(x)
2939 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2940 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2941 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2942 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2943 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2944 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2945 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2946 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2947 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2948 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2949 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2951 # undef Perl_fp_class /* Unknown set of defines */
2956 /* Win32: _fpclass(), _isnan(), _finite(). */
2959 # define Perl_isnan(x) _isnan(x)
2961 # ifndef Perl_isfinite
2962 # define Perl_isfinite(x) _finite(x)
2964 # ifndef Perl_fp_class_snan
2965 /* No simple way to #define Perl_fp_class because _fpclass()
2966 * returns a set of bits. */
2967 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2968 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2969 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2970 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)
2971 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)
2972 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2973 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2974 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2975 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2976 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2977 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2978 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2979 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2980 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2981 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2985 #if !defined(Perl_fp_class_inf) && \
2986 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2987 # define Perl_fp_class_inf(x) \
2988 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2991 #if !defined(Perl_fp_class_nan) && \
2992 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2993 # define Perl_fp_class_nan(x) \
2994 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2997 #if !defined(Perl_fp_class_zero) && \
2998 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2999 # define Perl_fp_class_zero(x) \
3000 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
3003 #if !defined(Perl_fp_class_norm) && \
3004 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
3005 # define Perl_fp_class_norm(x) \
3006 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
3009 #if !defined(Perl_fp_class_denorm) && \
3010 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
3011 # define Perl_fp_class_denorm(x) \
3012 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
3016 # ifdef Perl_fp_class_nan
3017 # define Perl_isnan(x) Perl_fp_class_nan(x)
3018 # elif defined(HAS_UNORDERED)
3019 # define Perl_isnan(x) unordered((x), 0.0)
3021 # define Perl_isnan(x) ((x)!=(x))
3026 # ifdef Perl_fp_class_inf
3027 # define Perl_isinf(x) Perl_fp_class_inf(x)
3031 #ifndef Perl_isfinite
3032 # if defined(HAS_ISFINITE) && !defined(isfinite)
3033 # define Perl_isfinite(x) isfinite((double)(x))
3034 # elif defined(HAS_FINITE)
3035 # define Perl_isfinite(x) finite((double)(x))
3036 # elif defined(Perl_fp_class_finite)
3037 # define Perl_isfinite(x) Perl_fp_class_finite(x)
3039 /* For the infinities the multiplication returns nan,
3040 * for the nan the multiplication also returns nan,
3041 * for everything else (that is, finite) zero should be returned. */
3042 # define Perl_isfinite(x) (((x) * 0) == 0)
3047 # if defined(Perl_isfinite) && defined(Perl_isnan)
3048 # define Perl_isinf(x) (!(Perl_isfinite(x)||Perl_isnan(x)))
3052 /* We need Perl_isfinitel (ends with ell) (if available) even when
3053 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
3055 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
3056 /* If isfinite() is a macro and looks like we have C99,
3057 * we assume it's the type-aware C99 isfinite(). */
3058 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
3059 # define Perl_isfinitel(x) isfinite(x)
3060 # elif defined(HAS_ISFINITEL)
3061 # define Perl_isfinitel(x) isfinitel(x)
3062 # elif defined(HAS_FINITEL)
3063 # define Perl_isfinitel(x) finitel(x)
3064 # elif defined(HAS_ISINFL) && defined(HAS_ISNANL)
3065 # define Perl_isfinitel(x) (!(isinfl(x)||isnanl(x)))
3067 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
3071 /* The default is to use Perl's own atof() implementation (in numeric.c).
3072 * This knows about if 'use locale' is in effect or not, and handles the radix
3073 * character accordingly. On some platforms (e.g. UNICOS) it is however best
3074 * to use the native implementation of atof, as long as you accept that the
3075 * current underlying locale will affect the radix character. Perl's version
3076 * uses a dot for a radix, execpt within the lexical scope of a Perl C<use
3077 * locale> statement.
3079 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
3080 * Some good tests to try out with either setting are t/base/num.t,
3081 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
3082 * you may need to be using a different function than atof! */
3084 #ifndef USE_PERL_ATOF
3086 # define USE_PERL_ATOF
3089 # if USE_PERL_ATOF == 0
3090 # undef USE_PERL_ATOF
3094 #ifdef USE_PERL_ATOF
3095 # define Perl_atof(s) Perl_my_atof(aTHX_ s)
3096 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
3098 # define Perl_atof(s) (NV)atof(s)
3099 # define Perl_atof2(s, n) ((n) = atof(s))
3101 #define my_atof2(a,b) my_atof3(a,b,0)
3104 =for apidoc AmTR|NV|Atof|NN const char * const s
3106 This is a synonym for L</C<my_atof>>.
3112 #define Atof my_atof
3115 =for apidoc_section $numeric
3116 =for apidoc AmT|NV|Perl_acos|NV x
3117 =for apidoc_item |NV|Perl_asin|NV x
3118 =for apidoc_item |NV|Perl_atan|NV x
3119 =for apidoc_item |NV|Perl_atan2|NV x|NV y
3120 =for apidoc_item |NV|Perl_ceil|NV x
3121 =for apidoc_item |NV|Perl_cos|NV x
3122 =for apidoc_item |NV|Perl_cosh|NV x
3123 =for apidoc_item |NV|Perl_exp|NV x
3124 =for apidoc_item |NV|Perl_floor|NV x
3125 =for apidoc_item |NV|Perl_fmod|NV x|NV y
3126 =for apidoc_item |NV|Perl_frexp|NV x|int *exp
3127 =for apidoc_item |IV|Perl_isfinite|NV x
3128 =for apidoc_item |IV|Perl_isinf|NV x
3129 =for apidoc_item |IV|Perl_isnan|NV x
3130 =for apidoc_item |NV|Perl_ldexp|NV x|int exp
3131 =for apidoc_item |NV|Perl_log|NV x
3132 =for apidoc_item |NV|Perl_log10|NV x
3133 =for apidoc_item |NV|Perl_modf|NV x|NV *iptr
3134 =for apidoc_item |NV|Perl_pow|NV x|NV y
3135 =for apidoc_item |NV|Perl_sin|NV x
3136 =for apidoc_item |NV|Perl_sinh|NV x
3137 =for apidoc_item |NV|Perl_sqrt|NV x
3138 =for apidoc_item |NV|Perl_tan|NV x
3139 =for apidoc_item |NV|Perl_tanh|NV x
3141 These perform the corresponding mathematical operation on the operand(s), using
3142 the libc function designed for the task that has just enough precision for an
3143 NV on this platform. If no such function with sufficient precision exists,
3144 the highest precision one available is used.
3151 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
3152 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
3153 * depending on local options. Until Configure detects this (or at least
3154 * detects whether the "signed" keyword is available) the CHAR ranges
3155 * will not be included. UCHAR functions normally.
3159 #define PERL_UCHAR_MIN ((unsigned char)0)
3160 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
3162 #define PERL_USHORT_MIN ((unsigned short)0)
3163 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
3165 #define PERL_SHORT_MAX ((short)SHRT_MAX)
3166 #define PERL_SHORT_MIN ((short)SHRT_MIN)
3168 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
3169 #define PERL_UINT_MIN ((unsigned int)0)
3171 #define PERL_INT_MAX ((int)INT_MAX)
3172 #define PERL_INT_MIN ((int)INT_MIN)
3174 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
3175 #define PERL_ULONG_MIN ((unsigned long)0L)
3177 #define PERL_LONG_MAX ((long)LONG_MAX)
3178 #define PERL_LONG_MIN ((long)LONG_MIN)
3181 # define PERL_UQUAD_MAX (~(UV)0)
3182 # define PERL_UQUAD_MIN ((UV)0)
3183 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
3184 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
3188 =for apidoc_section $integer
3190 =for apidoc Amn |int|PERL_INT_MAX
3191 =for apidoc_item |int|PERL_INT_MIN
3192 =for apidoc_item |long|PERL_LONG_MAX
3193 =for apidoc_item |long|PERL_LONG_MIN
3194 =for apidoc_item |IV|PERL_QUAD_MAX
3195 =for apidoc_item |IV|PERL_QUAD_MIN
3196 =for apidoc_item |short|PERL_SHORT_MAX
3197 =for apidoc_item |short|PERL_SHORT_MIN
3198 =for apidoc_item |U8|PERL_UCHAR_MAX
3199 =for apidoc_item |U8|PERL_UCHAR_MIN
3200 =for apidoc_item |unsigned int|PERL_UINT_MAX
3201 =for apidoc_item |unsigned int|PERL_UINT_MIN
3202 =for apidoc_item |unsigned long|PERL_ULONG_MAX
3203 =for apidoc_item |unsigned long|PERL_ULONG_MIN
3204 =for apidoc_item |UV|PERL_UQUAD_MAX
3205 =for apidoc_item |UV|PERL_UQUAD_MIN
3206 =for apidoc_item |unsigned short|PERL_USHORT_MAX
3207 =for apidoc_item |unsigned short|PERL_USHORT_MIN
3209 These give the largest and smallest number representable in the current
3210 platform in variables of the corresponding types.
3212 For signed types, the smallest representable number is the most negative
3213 number, the one furthest away from zero.
3215 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
3216 are available to the C code. But these constants, furnished by Perl,
3217 allow code compiled on earlier compilers to portably have access to the same
3224 typedef MEM_SIZE STRLEN;
3226 typedef struct op OP;
3227 typedef struct cop COP;
3228 typedef struct unop UNOP;
3229 typedef struct unop_aux UNOP_AUX;
3230 typedef struct binop BINOP;
3231 typedef struct listop LISTOP;
3232 typedef struct logop LOGOP;
3233 typedef struct pmop PMOP;
3234 typedef struct svop SVOP;
3235 typedef struct padop PADOP;
3236 typedef struct pvop PVOP;
3237 typedef struct loop LOOP;
3238 typedef struct methop METHOP;
3241 typedef struct opslab OPSLAB;
3242 typedef struct opslot OPSLOT;
3245 typedef struct block_hooks BHK;
3246 typedef struct custom_op XOP;
3248 typedef struct interpreter PerlInterpreter;
3250 /* SGI's <sys/sema.h> has struct sv */
3252 # define STRUCT_SV perl_sv
3254 # define STRUCT_SV sv
3256 typedef struct STRUCT_SV SV;
3257 typedef struct av AV;
3258 typedef struct hv HV;
3259 typedef struct cv CV;
3260 typedef struct p5rx REGEXP;
3261 typedef struct gp GP;
3262 typedef struct gv GV;
3263 typedef struct io IO;
3264 typedef struct context PERL_CONTEXT;
3265 typedef struct block BLOCK;
3266 typedef struct invlist INVLIST;
3268 typedef struct magic MAGIC;
3269 typedef struct xpv XPV;
3270 typedef struct xpviv XPVIV;
3271 typedef struct xpvuv XPVUV;
3272 typedef struct xpvnv XPVNV;
3273 typedef struct xpvmg XPVMG;
3274 typedef struct xpvlv XPVLV;
3275 typedef struct xpvinvlist XINVLIST;
3276 typedef struct xpvav XPVAV;
3277 typedef struct xpvhv XPVHV;
3278 typedef struct xpvgv XPVGV;
3279 typedef struct xpvcv XPVCV;
3280 typedef struct xpvbm XPVBM;
3281 typedef struct xpvfm XPVFM;
3282 typedef struct xpvio XPVIO;
3283 typedef struct xobject XPVOBJ;
3284 typedef struct mgvtbl MGVTBL;
3285 typedef union any ANY;
3286 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
3287 typedef struct ptr_tbl PTR_TBL_t;
3288 typedef struct clone_params CLONE_PARAMS;
3290 /* a pad is currently just an AV; but that might change,
3291 * so hide the type. */
3292 typedef struct padlist PADLIST;
3294 typedef struct padnamelist PADNAMELIST;
3295 typedef struct padname PADNAME;
3297 /* always enable PERL_OP_PARENT */
3298 #if !defined(PERL_OP_PARENT)
3299 # define PERL_OP_PARENT
3302 /* enable PERL_COPY_ON_WRITE by default */
3303 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
3304 # define PERL_COPY_ON_WRITE
3307 #ifdef PERL_COPY_ON_WRITE
3308 # define PERL_ANY_COW
3310 # define PERL_SAWAMPERSAND
3313 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
3314 # error PERL_DEBUG_READONLY_OPS only works with ithreads
3318 #include "charclass_invlists.h"
3320 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
3321 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
3322 # define USE_64_BIT_RAWIO /* implicit */
3326 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
3327 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
3328 * however, because operating systems like to do that themself. */
3331 # define FSEEKSIZE LSEEKSIZE
3333 # define FSEEKSIZE LONGSIZE
3337 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
3338 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
3339 # define USE_64_BIT_STDIO /* implicit */
3343 #ifdef USE_64_BIT_RAWIO
3346 # define Off_t off64_t
3348 # define LSEEKSIZE 8
3350 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
3351 * will trigger defines like the ones below. Some 64-bit environments,
3352 * however, do not. Therefore we have to explicitly mix and match. */
3353 # if defined(USE_OPEN64)
3354 # define open open64
3356 # if defined(USE_LSEEK64)
3357 # define lseek lseek64
3359 # if defined(USE_LLSEEK)
3360 # define lseek llseek
3363 # if defined(USE_STAT64)
3364 # define stat stat64
3366 # if defined(USE_FSTAT64)
3367 # define fstat fstat64
3369 # if defined(USE_LSTAT64)
3370 # define lstat lstat64
3372 # if defined(USE_FLOCK64)
3373 # define flock flock64
3375 # if defined(USE_LOCKF64)
3376 # define lockf lockf64
3378 # if defined(USE_FCNTL64)
3379 # define fcntl fcntl64
3381 # if defined(USE_TRUNCATE64)
3382 # define truncate truncate64
3384 # if defined(USE_FTRUNCATE64)
3385 # define ftruncate ftruncate64
3389 #ifdef USE_64_BIT_STDIO
3390 # ifdef HAS_FPOS64_T
3392 # define Fpos_t fpos64_t
3394 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
3395 * will trigger defines like the ones below. Some 64-bit environments,
3396 * however, do not. */
3397 # if defined(USE_FOPEN64)
3398 # define fopen fopen64
3400 # if defined(USE_FSEEK64)
3401 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
3403 # if defined(USE_FTELL64)
3404 # define ftell ftell64 /* don't do ftello here, see perlio.c */
3406 # if defined(USE_FSETPOS64)
3407 # define fsetpos fsetpos64
3409 # if defined(USE_FGETPOS64)
3410 # define fgetpos fgetpos64
3412 # if defined(USE_TMPFILE64)
3413 # define tmpfile tmpfile64
3415 # if defined(USE_FREOPEN64)
3416 # define freopen freopen64
3421 # include "iperlsys.h"
3426 # include "os2ish.h"
3428 # include "dosish.h"
3431 # include "vmsish.h"
3432 #elif defined(PLAN9)
3433 # include "./plan9/plan9ish.h"
3434 #elif defined(__VOS__)
3436 # include "./vos/vosish.h"
3438 # include "vos/vosish.h"
3440 #elif defined(__HAIKU__)
3441 # include "haiku/haikuish.h"
3443 # include "unixish.h"
3447 # include "amigaos.h"
3448 # undef FD_CLOEXEC /* a lie in AmigaOS */
3451 /* NSIG logic from Configure --> */
3454 # define NSIG (_NSIG)
3455 # elif defined(SIGMAX)
3456 # define NSIG (SIGMAX+1)
3457 # elif defined(SIG_MAX)
3458 # define NSIG (SIG_MAX+1)
3459 # elif defined(_SIG_MAX)
3460 # define NSIG (_SIG_MAX+1)
3461 # elif defined(MAXSIG)
3462 # define NSIG (MAXSIG+1)
3463 # elif defined(MAX_SIG)
3464 # define NSIG (MAX_SIG+1)
3465 # elif defined(SIGARRAYSIZE)
3466 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
3467 # elif defined(_sys_nsig)
3468 # define NSIG (_sys_nsig) /* Solaris 2.5 */
3470 /* Default to some arbitrary number that's big enough to get most
3471 * of the common signals. */
3475 /* <-- NSIG logic from Configure */
3477 #ifndef NO_ENVIRON_ARRAY
3478 # define USE_ENVIRON_ARRAY
3481 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3482 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
3483 * signal handlers. But the perl core itself only fully supports 1-arg
3484 * handlers, so don't enable for now.
3485 * NB: POSIX::sigaction() supports both.
3487 * # define PERL_USE_3ARG_SIGHANDLER
3492 * This is an alias for the OS's siginfo_t, except that where the OS
3493 * doesn't support it, declare a dummy version instead. This allows us to
3494 * have signal handler functions which always have a Siginfo_t parameter
3495 * regardless of platform, (and which will just be passed a NULL value
3496 * where the OS doesn't support HAS_SIGACTION).
3499 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3500 typedef siginfo_t Siginfo_t;
3502 #ifdef si_signo /* minix */
3512 * initialise to avoid floating-point exceptions from overflow, etc
3514 #ifndef PERL_FPU_INIT
3515 # ifdef HAS_FPSETMASK
3516 # if HAS_FLOATINGPOINT_H
3517 # include <floatingpoint.h>
3519 /* Some operating systems have this as a macro, which in turn expands to a comma
3520 expression, and the last sub-expression is something that gets calculated,
3521 and then they have the gall to warn that a value computed is not used. Hence
3523 # define PERL_FPU_INIT (void)fpsetmask(0)
3524 # elif defined(SIGFPE) && defined(SIG_IGN)
3525 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3526 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3527 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3529 # define PERL_FPU_INIT
3532 #ifndef PERL_FPU_PRE_EXEC
3533 # define PERL_FPU_PRE_EXEC {
3534 # define PERL_FPU_POST_EXEC }
3537 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3538 * We need to reenable the "invalid" trap because otherwise generation
3539 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3540 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3542 # include <machine/fpu.h>
3543 # define PERL_SYS_FPU_INIT \
3545 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3546 signal(SIGFPE, SIG_IGN); \
3549 /* In IRIX the default for Flush to Zero bit is true,
3550 * which means that results going below the minimum of normal
3551 * floating points go to zero, instead of going denormal/subnormal.
3552 * This is unlike almost any other system running Perl, so let's clear it.
3553 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3554 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3556 * XXX The flush-to-zero behaviour should be a Configure scan.
3557 * To change the behaviour usually requires some system-specific
3558 * incantation, though, like the below. */
3560 # include <sys/fpu.h>
3561 # define PERL_SYS_FPU_INIT \
3563 union fpc_csr csr; \
3564 csr.fc_word = get_fpc_csr(); \
3565 csr.fc_struct.flush = 0; \
3566 set_fpc_csr(csr.fc_word); \
3570 #ifndef PERL_SYS_FPU_INIT
3571 # define PERL_SYS_FPU_INIT NOOP
3574 #ifndef PERL_SYS_INIT3_BODY
3575 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3579 =for apidoc_section $embedding
3581 =for apidoc Am|void|PERL_SYS_INIT |int *argc|char*** argv
3582 =for apidoc_item| |PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3584 These provide system-specific tune up of the C runtime environment necessary to
3585 run Perl interpreters. Only one should be used, and it should be called only
3586 once, before creating any Perl interpreters.
3588 They differ in that C<PERL_SYS_INIT3> also initializes C<env>.
3590 =for apidoc Am|void|PERL_SYS_TERM|
3591 Provides system-specific clean up of the C runtime environment after
3592 running Perl interpreters. This should be called only once, after
3593 freeing any remaining Perl interpreters.
3598 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3599 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3600 #define PERL_SYS_TERM() Perl_sys_term()
3602 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3603 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3608 # ifdef _POSIX_PATH_MAX
3609 # if PATH_MAX > _POSIX_PATH_MAX
3610 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3611 * included the null byte or not. Later amendments of POSIX,
3612 * XPG4, the Austin Group, and the Single UNIX Specification
3613 * all explicitly include the null byte in the PATH_MAX.
3614 * Ditto for _POSIX_PATH_MAX. */
3615 # define MAXPATHLEN PATH_MAX
3617 # define MAXPATHLEN _POSIX_PATH_MAX
3620 # define MAXPATHLEN (PATH_MAX+1)
3623 # define MAXPATHLEN 1024 /* Err on the large side. */
3627 /* clang Thread Safety Analysis/Annotations/Attributes
3628 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3630 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3631 * Apple XCode hijacks __clang_major__ and __clang_minor__
3632 * (6.1 means really clang 3.6), so needs extra hijinks
3633 * (could probably also test the contents of __apple_build_version__).
3635 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3636 defined(__clang__) && \
3638 ((!defined(__apple_build_version__) && \
3639 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3640 (__clang_major__ >= 4))) || \
3641 (defined(__apple_build_version__) && \
3642 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3643 (__clang_major__ >= 7))))
3644 # define PERL_TSA__(x) __attribute__((x))
3645 # define PERL_TSA_ACTIVE
3647 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3648 # undef PERL_TSA_ACTIVE
3651 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3652 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3654 #define PERL_TSA_CAPABILITY(x) \
3655 PERL_TSA__(capability(x))
3657 /* In the below examples the mutex must be lexically visible, usually
3658 * either as global variables, or as function arguments. */
3660 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3662 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3664 #define PERL_TSA_GUARDED_BY(x) \
3665 PERL_TSA__(guarded_by(x))
3667 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3668 * The data _behind_ the pointer is guarded.
3670 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3672 #define PERL_TSA_PT_GUARDED_BY(x) \
3673 PERL_TSA__(pt_guarded_by(x))
3675 /* PERL_TSA_REQUIRES() is used to annotate functions.
3676 * The caller MUST hold the resource when calling the function.
3678 * void Foo() PERL_TSA_REQUIRES(mutex);
3680 #define PERL_TSA_REQUIRES(x) \
3681 PERL_TSA__(requires_capability(x))
3683 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3684 * The caller MUST NOT hold resource when calling the function.
3686 * EXCLUDES should be used when the function first acquires
3687 * the resource and then releases it. Use to avoid deadlock.
3689 * void Foo() PERL_TSA_EXCLUDES(mutex);
3691 #define PERL_TSA_EXCLUDES(x) \
3692 PERL_TSA__(locks_excluded(x))
3694 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3695 * The caller MUST NOT hold the resource when calling the function,
3696 * and the function will acquire the resource.
3698 * void Foo() PERL_TSA_ACQUIRE(mutex);
3700 #define PERL_TSA_ACQUIRE(x) \
3701 PERL_TSA__(acquire_capability(x))
3703 /* PERL_TSA_RELEASE() is used to annotate functions.
3704 * The caller MUST hold the resource when calling the function,
3705 * and the function will release the resource.
3707 * void Foo() PERL_TSA_RELEASE(mutex);
3709 #define PERL_TSA_RELEASE(x) \
3710 PERL_TSA__(release_capability(x))
3712 /* PERL_TSA_NO_TSA is used to annotate functions.
3713 * Used when being intentionally unsafe, or when the code is too
3714 * complicated for the analysis. Use sparingly.
3716 * void Foo() PERL_TSA_NO_TSA;
3718 #define PERL_TSA_NO_TSA \
3719 PERL_TSA__(no_thread_safety_analysis)
3721 /* There are more annotations/attributes available, see the clang
3722 * documentation for details. */
3724 #if defined(USE_ITHREADS)
3726 # include <win32thread.h>
3728 # include "os2thread.h"
3729 # elif defined(I_MACH_CTHREADS)
3730 # include <mach/cthreads.h>
3731 typedef cthread_t perl_os_thread;
3732 typedef mutex_t perl_mutex;
3733 typedef condition_t perl_cond;
3734 typedef void * perl_key;
3735 # elif defined(I_PTHREAD) /* Posix threads */
3736 # include <pthread.h>
3737 typedef pthread_t perl_os_thread;
3738 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3739 typedef pthread_cond_t perl_cond;
3740 typedef pthread_key_t perl_key;
3743 /* Many readers; single writer */
3747 SSize_t readers_count;
3748 } perl_RnW1_mutex_t;
3751 #endif /* USE_ITHREADS */
3753 #ifdef PERL_TSA_ACTIVE
3754 /* Since most pthread mutex interfaces have not been annotated, we
3755 * need to have these wrappers. The NO_TSA annotation is quite ugly
3756 * but it cannot be avoided in plain C, unlike in C++, where one could
3757 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3759 * The bodies of these wrappers are in util.c
3761 * TODO: however, some platforms are starting to get these clang
3762 * thread safety annotations for pthreads, for example FreeBSD.
3763 * Do we need a way to a bypass these wrappers? */
3764 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3765 PERL_TSA_ACQUIRE(*mutex)
3767 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3768 PERL_TSA_RELEASE(*mutex)
3776 #define STATUS_UNIX PL_statusvalue
3778 # define STATUS_NATIVE PL_statusvalue_vms
3780 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3781 * its contents can not be trusted. Unfortunately, Perl seems to check
3782 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3785 # include <stsdef.h>
3787 /* Presume this because if VMS changes it, it will require a new
3788 * set of APIs for waiting on children for binary compatibility.
3790 # define child_offset_bits (8)
3791 # ifndef C_FAC_POSIX
3792 # define C_FAC_POSIX 0x35A000
3795 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3796 * platform from the existing UNIX or Native status values.
3799 # define STATUS_EXIT \
3800 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3801 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3804 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3805 * exit code and shifts the UNIX value over the correct number of bits to
3806 * be a child status. Usually the number of bits is 8, but that could be
3807 * platform dependent. The NATIVE status code is presumed to have either
3808 * from a child process.
3811 /* This is complicated. The child processes return a true native VMS
3812 status which must be saved. But there is an assumption in Perl that
3813 the UNIX child status has some relationship to errno values, so
3814 Perl tries to translate it to text in some of the tests.
3815 In order to get the string translation correct, for the error, errno
3816 must be EVMSERR, but that generates a different text message
3817 than what the test programs are expecting. So an errno value must
3818 be derived from the native status value when an error occurs.
3819 That will hide the true native status message. With this version of
3820 perl, the true native child status can always be retrieved so that
3821 is not a problem. But in this case, Pl_statusvalue and errno may
3822 have different values in them.
3825 # define STATUS_NATIVE_CHILD_SET(n) \
3827 I32 evalue = (I32)n; \
3828 if (evalue == EVMSERR) { \
3829 PL_statusvalue_vms = vaxc$errno; \
3830 PL_statusvalue = evalue; \
3832 PL_statusvalue_vms = evalue; \
3833 if (evalue == -1) { \
3834 PL_statusvalue = -1; \
3835 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3837 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3838 set_vaxc_errno(evalue); \
3839 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3840 set_errno(EVMSERR); \
3841 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3842 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3846 # ifdef VMSISH_STATUS
3847 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3849 # define STATUS_CURRENT STATUS_UNIX
3852 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3853 * the NATIVE status to an equivalent value. Can not be used to translate
3854 * exit code values as exit code values are not guaranteed to have any
3855 * relationship at all to errno values.
3856 * This is used when Perl is forcing errno to have a specific value.
3858 # define STATUS_UNIX_SET(n) \
3860 I32 evalue = (I32)n; \
3861 PL_statusvalue = evalue; \
3862 if (PL_statusvalue != -1) { \
3863 if (PL_statusvalue != EVMSERR) { \
3864 PL_statusvalue &= 0xFFFF; \
3865 if (MY_POSIX_EXIT) \
3866 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3867 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3870 PL_statusvalue_vms = vaxc$errno; \
3873 else PL_statusvalue_vms = SS$_ABORT; \
3874 set_vaxc_errno(PL_statusvalue_vms); \
3877 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3878 * the NATIVE error status based on it.
3880 * When in the default mode to comply with the Perl VMS documentation,
3881 * 0 is a success and any other code sets the NATIVE status to a failure
3882 * code of SS$_ABORT.
3884 * In the new POSIX EXIT mode, native status will be set so that the
3885 * actual exit code will can be retrieved by the calling program or
3888 * If the exit code is not clearly a UNIX parent or child exit status,
3889 * it will be passed through as a VMS status.
3892 # define STATUS_UNIX_EXIT_SET(n) \
3894 I32 evalue = (I32)n; \
3895 PL_statusvalue = evalue; \
3896 if (MY_POSIX_EXIT) { \
3897 if (evalue <= 0xFF00) { \
3898 if (evalue > 0xFF) \
3899 evalue = ((U8) (evalue >> child_offset_bits)); \
3900 PL_statusvalue_vms = \
3901 (C_FAC_POSIX | (evalue << 3 ) | \
3902 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3903 } else /* forgive them Perl, for they have sinned */ \
3904 PL_statusvalue_vms = evalue; \
3907 PL_statusvalue_vms = SS$_NORMAL; \
3908 else if (evalue <= 0xFF00) \
3909 PL_statusvalue_vms = SS$_ABORT; \
3910 else { /* forgive them Perl, for they have sinned */ \
3911 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3912 else PL_statusvalue_vms = vaxc$errno; \
3913 /* And obviously used a VMS status value instead of UNIX */ \
3914 PL_statusvalue = EVMSERR; \
3916 set_vaxc_errno(PL_statusvalue_vms); \
3921 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3922 * and sets the NATIVE error status based on it. This special case
3923 * is needed to maintain compatibility with past VMS behavior.
3925 * In the default mode on VMS, this number is passed through as
3926 * both the NATIVE and UNIX status. Which makes it different
3927 * that the STATUS_UNIX_EXIT_SET.
3929 * In the new POSIX EXIT mode, native status will be set so that the
3930 * actual exit code will can be retrieved by the calling program or
3933 * A POSIX exit code is from 0 to 255. If the exit code is higher
3934 * than this, it needs to be assumed that it is a VMS exit code and
3938 # define STATUS_EXIT_SET(n) \
3940 I32 evalue = (I32)n; \
3941 PL_statusvalue = evalue; \
3942 if (MY_POSIX_EXIT) \
3943 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3944 PL_statusvalue_vms = \
3945 (C_FAC_POSIX | (evalue << 3 ) | \
3946 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3948 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3949 set_vaxc_errno(PL_statusvalue_vms); \
3953 /* This macro forces a success status */
3954 # define STATUS_ALL_SUCCESS \
3955 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3957 /* This macro forces a failure status */
3958 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3959 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3960 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3962 #elif defined(__amigaos4__)
3963 /* A somewhat experimental attempt to simulate posix return code values */
3964 # define STATUS_NATIVE PL_statusvalue_posix
3965 # define STATUS_NATIVE_CHILD_SET(n) \
3967 PL_statusvalue_posix = (n); \
3968 if (PL_statusvalue_posix < 0) { \
3969 PL_statusvalue = -1; \
3972 PL_statusvalue = n << 8; \
3975 # define STATUS_UNIX_SET(n) \
3977 PL_statusvalue = (n); \
3978 if (PL_statusvalue != -1) \
3979 PL_statusvalue &= 0xFFFF; \
3981 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3982 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3983 # define STATUS_CURRENT STATUS_UNIX
3984 # define STATUS_EXIT STATUS_UNIX
3985 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3986 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3989 # define STATUS_NATIVE PL_statusvalue_posix
3990 # if defined(WCOREDUMP)
3991 # define STATUS_NATIVE_CHILD_SET(n) \
3993 PL_statusvalue_posix = (n); \
3994 if (PL_statusvalue_posix == -1) \
3995 PL_statusvalue = -1; \
3998 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3999 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
4000 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
4003 # elif defined(WIFEXITED)
4004 # define STATUS_NATIVE_CHILD_SET(n) \
4006 PL_statusvalue_posix = (n); \
4007 if (PL_statusvalue_posix == -1) \
4008 PL_statusvalue = -1; \
4011 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
4012 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
4016 # define STATUS_NATIVE_CHILD_SET(n) \
4018 PL_statusvalue_posix = (n); \
4019 if (PL_statusvalue_posix == -1) \
4020 PL_statusvalue = -1; \
4023 PL_statusvalue_posix & 0xFFFF; \
4027 # define STATUS_UNIX_SET(n) \
4029 PL_statusvalue = (n); \
4030 if (PL_statusvalue != -1) \
4031 PL_statusvalue &= 0xFFFF; \
4033 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
4034 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
4035 # define STATUS_CURRENT STATUS_UNIX
4036 # define STATUS_EXIT STATUS_UNIX
4037 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
4038 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
4041 /* flags in PL_exit_flags for nature of exit() */
4042 #define PERL_EXIT_EXPECTED 0x01
4043 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
4044 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
4045 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
4048 /* format to use for version numbers in file/directory names */
4049 /* XXX move to Configure? */
4050 /* This was only ever used for the current version, and that can be done at
4051 compile time, as PERL_FS_VERSION, so should we just delete it? */
4052 # ifndef PERL_FS_VER_FMT
4053 # define PERL_FS_VER_FMT "%d.%d.%d"
4057 #ifndef PERL_FS_VERSION
4058 # define PERL_FS_VERSION PERL_VERSION_STRING
4063 =for apidoc_section $io
4064 =for apidoc Amn|void|PERL_FLUSHALL_FOR_CHILD
4066 This defines a way to flush all output buffers. This may be a
4067 performance issue, so we allow people to disable it. Also, if
4068 we are using stdio, there are broken implementations of fflush(NULL)
4069 out there, Solaris being the most prominent.
4074 #ifndef PERL_FLUSHALL_FOR_CHILD
4075 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
4076 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
4077 # elif defined(FFLUSH_ALL)
4078 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
4080 # define PERL_FLUSHALL_FOR_CHILD NOOP
4084 #ifndef PERL_WAIT_FOR_CHILDREN
4085 # define PERL_WAIT_FOR_CHILDREN NOOP
4088 /* the traditional thread-unsafe notion of "current interpreter". */
4089 #ifndef PERL_SET_INTERP
4090 # define PERL_SET_INTERP(i) \
4091 STMT_START { PL_curinterp = (PerlInterpreter*)(i); \
4092 PERL_SET_NON_tTHX_CONTEXT(i); \
4096 #ifndef PERL_GET_INTERP
4097 # define PERL_GET_INTERP (PL_curinterp)
4100 #if defined(MULTIPLICITY) && !defined(PERL_GET_THX)
4101 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
4102 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
4106 This replaces the previous %_ "hack" by the "%p" hacks.
4107 All that is required is that the perl source does not
4108 use "%-p" or "%-<number>p" or "%<number>p" formats.
4109 These formats will still work in perl code.
4110 See comments in sv.c for further details.
4112 Robin Barker 2005-07-14
4114 No longer use %1p for VDf = %vd. RMB 2007-10-19
4118 # define SVf_(n) "-" STRINGIFY(n) "p"
4126 # define SVf32 SVf_(32)
4130 # define SVf256 SVf_(256)
4133 #define SVfARG(p) ((void*)(p))
4135 /* Render an SV as a quoted and escaped string suitable for an error message.
4136 * Only shows the first PERL_QUOTEDPREFIX_LEN characters, and adds ellipses if the
4137 * string is too long.
4139 #ifndef PERL_QUOTEDPREFIX_LEN
4140 # define PERL_QUOTEDPREFIX_LEN 256
4142 #ifndef SVf_QUOTEDPREFIX
4143 # define SVf_QUOTEDPREFIX "5p"
4146 /* like %s but runs through the quoted prefix logic */
4147 #ifndef PVf_QUOTEDPREFIX
4148 # define PVf_QUOTEDPREFIX "1p"
4155 #ifndef HEKf_QUOTEDPREFIX
4156 # define HEKf_QUOTEDPREFIX "7p"
4159 /* Not ideal, but we cannot easily include a number in an already-numeric
4160 * format sequence. */
4162 # define HEKf256 "3p"
4165 #ifndef HEKf256_QUOTEDPREFIX
4166 # define HEKf256_QUOTEDPREFIX "8p"
4169 #define HEKfARG(p) ((void*)(p))
4171 /* Documented in perlguts
4173 * %4p and %9p are custom formats for handling UTF8 parameters.
4174 * They only occur when prefixed by specific other formats.
4177 # define UTF8f "d%" UVuf "%4p"
4179 #ifndef UTF8f_QUOTEDPREFIX
4180 # define UTF8f_QUOTEDPREFIX "d%" UVuf "%9p"
4182 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
4185 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
4187 #define HvNAMEf "6p"
4188 #define HvNAMEf_QUOTEDPREFIX "10p"
4190 #define HvNAMEfARG(hv) ((void*)(hv))
4193 /* not used; but needed for backward compatibility with XS code? - RMB
4194 =for apidoc_section $io_formats
4195 =for apidoc AmnD|const char *|UVf
4197 Obsolete form of C<UVuf>, which you should convert to instead use
4206 #if !defined(DEBUGGING) && !defined(NDEBUG)
4211 /* For functions that are marked as __attribute__noreturn__, it's not
4212 appropriate to call return. In either case, include the lint directive.
4214 #ifdef HASATTRIBUTE_NORETURN
4215 # define NORETURN_FUNCTION_END NOT_REACHED;
4217 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
4220 #ifdef HAS_BUILTIN_EXPECT
4221 # define EXPECT(expr,val) __builtin_expect(expr,val)
4223 # define EXPECT(expr,val) (expr)
4227 =for apidoc_section $directives
4229 =for apidoc Am||LIKELY|bool expr
4231 Returns the input unchanged, but at the same time it gives a branch prediction
4232 hint to the compiler that this condition is likely to be true.
4234 =for apidoc Am||UNLIKELY|bool expr
4236 Returns the input unchanged, but at the same time it gives a branch prediction
4237 hint to the compiler that this condition is likely to be false.
4241 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
4242 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
4244 #ifdef HAS_BUILTIN_CHOOSE_EXPR
4248 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
4249 time invariants. That is, their argument must be a constant expression that
4250 can be verified by the compiler. This expression can contain anything that's
4251 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
4252 the expression evaluates to 0, compilation fails.
4253 Because they generate no runtime code (i.e. their use is "free"), they're
4254 always active, even under non-DEBUGGING builds.
4255 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
4256 file scope (outside of any function).
4257 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
4260 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
4261 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
4262 || (__STDC_VERSION__ - 0) >= 201101L)) \
4263 || (defined(__cplusplus) && __cplusplus >= 201103L))
4264 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
4265 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
4266 matter what <assert.h> says.
4268 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
4270 /* We use a bit-field instead of an array because gcc accepts
4271 'typedef char x[n]' where n is not a compile-time constant.
4272 We want to enforce constantness.
4274 # define STATIC_ASSERT_2(COND, SUFFIX) \
4276 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
4277 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
4278 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
4279 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
4281 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
4282 error (static_assert is a declaration, and only statements can have labels).
4284 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
4286 #ifndef __has_builtin
4287 # define __has_builtin(x) 0 /* not a clang style compiler */
4290 #ifdef PERL_STACK_OFFSET_SSIZET
4291 typedef SSize_t Stack_off_t;
4292 # define Stack_off_t_MAX SSize_t_MAX
4294 typedef I32 Stack_off_t;
4295 # define Stack_off_t_MAX I32_MAX
4297 #define PERL_STACK_OFFSET_DEFINED
4300 =for apidoc Am||ASSUME|bool expr
4301 C<ASSUME> is like C<assert()>, but it has a benefit in a release build. It is a
4302 hint to a compiler about a statement of fact in a function call free
4303 expression, which allows the compiler to generate better machine code. In a
4304 debug build, C<ASSUME(x)> is a synonym for C<assert(x)>. C<ASSUME(0)> means the
4305 control path is unreachable. In a for loop, C<ASSUME> can be used to hint that
4306 a loop will run at least X times. C<ASSUME> is based off MSVC's C<__assume>
4307 intrinsic function, see its documents for more details.
4312 #if __has_builtin(__builtin_unreachable)
4313 # define HAS_BUILTIN_UNREACHABLE
4314 #elif PERL_GCC_VERSION_GE(4,5,0)
4315 # define HAS_BUILTIN_UNREACHABLE
4319 # define ASSUME(x) assert(x)
4320 #elif __has_builtin(__builtin_assume)
4321 # if defined(__clang__) || defined(__clang)
4322 # define ASSUME(x) CLANG_DIAG_IGNORE(-Wassume) \
4323 __builtin_assume (x) \
4326 # define ASSUME(x) __builtin_assume(x)
4328 #elif defined(_MSC_VER)
4329 # define ASSUME(x) __assume(x)
4330 #elif defined(__ARMCC_VERSION) /* untested */
4331 # define ASSUME(x) __promise(x)
4332 #elif defined(HAS_BUILTIN_UNREACHABLE)
4333 /* Compilers can take the hint from something being unreachable */
4334 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
4336 /* Not DEBUGGING, so assert() is a no-op, but a random compiler might
4337 * define assert() to its own special optimization token so pass it through
4338 * to C lib as a last resort */
4339 # define ASSUME(x) assert(x)
4342 #ifdef HAS_BUILTIN_UNREACHABLE
4343 # define NOT_REACHED \
4345 ASSUME(!"UNREACHABLE"); __builtin_unreachable(); \
4347 # undef HAS_BUILTIN_UNREACHABLE /* Don't leak out this internal symbol */
4348 #elif ! defined(__GNUC__) && (defined(__sun) || defined(__hpux))
4349 /* These just complain that NOT_REACHED isn't reached */
4350 # define NOT_REACHED
4352 # define NOT_REACHED ASSUME(!"UNREACHABLE")
4355 /* Some unistd.h's give a prototype for pause() even though
4356 HAS_PAUSE ends up undefined. This causes the #define
4357 below to be rejected by the compiler. Sigh.
4362 #define Pause() sleep((32767<<16)+32767)
4366 # ifdef IOCPARM_MASK
4367 /* on BSDish systems we're safe */
4368 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
4369 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
4370 /* on Linux systems we're safe; except when we're not [perl #38223] */
4371 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
4373 /* otherwise guess at what's safe */
4374 # define IOCPARM_LEN(x) 256
4378 #if defined(__CYGWIN__)
4380 * This symbol, if defined, indicates that the program should
4381 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
4382 * that a file is in "binary" mode -- that is, that no translation
4383 * of bytes occurs on read or write operations.
4385 # define USEMYBINMODE /**/
4386 # include <io.h> /* for setmode() prototype */
4387 # define my_binmode(fp, iotype, mode) \
4388 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
4392 void init_os_extras(void);
4395 #ifdef UNION_ANY_DEFINITION
4396 UNION_ANY_DEFINITION;
4417 void (*any_dptr) (void*);
4418 void (*any_dxptr) (pTHX_ void*);
4422 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
4424 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
4425 #define FILTER_DATA(idx) \
4426 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
4427 #define FILTER_ISREADER(idx) \
4428 (PL_parser && PL_parser->rsfp_filters \
4429 && idx >= AvFILLp(PL_parser->rsfp_filters))
4430 #define PERL_FILTER_EXISTS(i) \
4431 (PL_parser && PL_parser->rsfp_filters \
4432 && (Size_t) (i) < av_count(PL_parser->rsfp_filters))
4434 #if defined(_AIX) && !defined(_AIX43)
4435 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
4436 /* We cannot include <crypt.h> to get the struct crypt_data
4437 * because of setkey prototype problems when threading */
4438 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
4439 /* From OSF, Not needed in AIX
4447 #endif /* threading */
4450 #ifndef PERL_CALLCONV
4452 # define PERL_CALLCONV EXTERN_C
4454 # define PERL_CALLCONV
4457 #ifndef PERL_CALLCONV_NO_RET
4458 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
4461 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
4462 dont have a noreturn as a declaration specifier
4464 #ifndef PERL_STATIC_NO_RET
4465 # define PERL_STATIC_NO_RET STATIC
4468 /* PERL_STATIC_INLINE_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE
4469 * on builds that dont have a noreturn as a declaration specifier
4471 #ifndef PERL_STATIC_INLINE_NO_RET
4472 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
4475 #ifndef PERL_STATIC_FORCE_INLINE
4476 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
4479 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
4480 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
4484 # include "iperlsys.h"
4487 #ifdef __LIBCATAMOUNT__
4488 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
4490 #define FAKE_BIT_BUCKET
4493 /* [perl #22371] Algorithmic Complexity Attack on Perl 5.6.1, 5.8.0.
4494 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
4495 * Configure, despite their names being similar to other defines like
4496 * USE_ITHREADS. Configure in fact knows nothing about the randomised
4497 * hashes. Therefore to enable/disable the hash randomisation defines
4498 * use the Configure -Accflags=... instead. */
4499 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
4500 # define USE_HASH_SEED
4506 /* macros to define bit-fields in structs. */
4507 #ifndef PERL_BITFIELD8
4508 # ifdef HAS_NON_INT_BITFIELDS
4509 # define PERL_BITFIELD8 U8
4511 # define PERL_BITFIELD8 unsigned
4514 #ifndef PERL_BITFIELD16
4515 # ifdef HAS_NON_INT_BITFIELDS
4516 # define PERL_BITFIELD16 U16
4518 # define PERL_BITFIELD16 unsigned
4521 #ifndef PERL_BITFIELD32
4522 # ifdef HAS_NON_INT_BITFIELDS
4523 # define PERL_BITFIELD32 U32
4525 # define PERL_BITFIELD32 unsigned
4536 #include "opnames.h"
4543 #include "warnings.h"
4546 /* these would be in doio.h if there was such a file */
4547 #define my_stat() my_stat_flags(SV_GMAGIC)
4548 #define my_lstat() my_lstat_flags(SV_GMAGIC)
4550 /* defined in sv.c, but also used in [ach]v.c */
4553 #undef _XPVCV_COMMON
4557 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
4559 #if defined(PERL_IN_REGEX_ENGINE) || defined(PERL_EXT_RE_BUILD)
4561 /* These have to be predeclared, as they are used in proto.h which is #included
4562 * before their definitions in regcomp.h. */
4565 typedef struct regnode_charclass regnode_charclass;
4567 /* A hopefully less confusing name. The sub-classes are all Posix classes only
4568 * used under /l matching */
4569 typedef struct regnode_charclass_posixl regnode_charclass_class;
4570 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
4572 typedef struct regnode_ssc regnode_ssc;
4573 typedef struct RExC_state_t RExC_state_t;
4574 struct _reg_trie_data;
4575 typedef struct scan_data_t scan_data_t;
4579 struct ptr_tbl_ent {
4580 struct ptr_tbl_ent* next;
4586 struct ptr_tbl_ent** tbl_ary;
4589 struct ptr_tbl_arena *tbl_arena;
4590 struct ptr_tbl_ent *tbl_arena_next;
4591 struct ptr_tbl_ent *tbl_arena_end;
4594 #if defined(htonl) && !defined(HAS_HTONL)
4597 #if defined(htons) && !defined(HAS_HTONS)
4600 #if defined(ntohl) && !defined(HAS_NTOHL)
4603 #if defined(ntohs) && !defined(HAS_NTOHS)
4611 # if (BYTEORDER & 0xffff) == 0x4321
4612 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4613 re-order their values. However, to behave identically to the alternative
4614 implementations, they should truncate to the correct size. */
4615 # define ntohl(x) ((x)&0xFFFFFFFF)
4616 # define htonl(x) ntohl(x)
4617 # define ntohs(x) ((x)&0xFFFF)
4618 # define htons(x) ntohs(x)
4619 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4621 /* Note that we can't straight out declare our own htonl and htons because
4622 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4623 to avoid the overhead of initialising the socket subsystem, but the headers
4624 that *declare* the various functions are still seen. If we declare our own
4625 htonl etc they will clash with the declarations in the Win32 headers. */
4627 PERL_STATIC_INLINE U32
4628 my_swap32(const U32 x) {
4629 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4630 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4633 PERL_STATIC_INLINE U16
4634 my_swap16(const U16 x) {
4635 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4638 # define htonl(x) my_swap32(x)
4639 # define ntohl(x) my_swap32(x)
4640 # define ntohs(x) my_swap16(x)
4641 # define htons(x) my_swap16(x)
4643 # error "Unsupported byteorder"
4644 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4645 the error message. Please check the value of the macro BYTEORDER, as defined
4646 in config.h. The values of BYTEORDER we expect are
4648 big endian little endian
4649 32 bit 0x4321 0x1234
4650 64 bit 0x87654321 0x12345678
4652 If you have a system with a different byte order, please see
4653 pod/perlhack.pod for how to submit a patch to add supporting code.
4659 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4662 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4663 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4664 re-order their values. However, to behave identically to the alternative
4665 implementations, they should truncate to the correct size. */
4666 # define vtohl(x) ((x)&0xFFFFFFFF)
4667 # define vtohs(x) ((x)&0xFFFF)
4668 # define htovl(x) vtohl(x)
4669 # define htovs(x) vtohs(x)
4670 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4671 # define vtohl(x) ((((x)&0xFF)<<24) \
4673 +(((x)&0x0000FF00)<<8) \
4674 +(((x)&0x00FF0000)>>8) )
4675 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4676 # define htovl(x) vtohl(x)
4677 # define htovs(x) vtohs(x)
4679 # error "Unsupported byteorder"
4680 /* If you have need for current perl on PDP-11 or similar, and can help test
4681 that blead keeps working on a mixed-endian system, then see
4682 pod/perlhack.pod for how to submit patches to things working again. */
4685 /* *MAX Plus 1. A floating point value.
4686 Hopefully expressed in a way that dodgy floating point can't mess up.
4687 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4689 May find that some broken compiler will want the value cast to I32.
4690 [after the shift, as signed >> may not be as secure as unsigned >>]
4692 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4693 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4694 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4695 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4696 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4698 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4700 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4701 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4702 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4704 /* This may look like unnecessary jumping through hoops, but converting
4705 out of range floating point values to integers *is* undefined behaviour,
4706 and it is starting to bite.
4708 =for apidoc_section $casting
4709 =for apidoc Am|I32|I_32|NV what
4710 Cast an NV to I32 while avoiding undefined C behavior
4712 =for apidoc Am|U32|U_32|NV what
4713 Cast an NV to U32 while avoiding undefined C behavior
4715 =for apidoc Am|IV|I_V|NV what
4716 Cast an NV to IV while avoiding undefined C behavior
4718 =for apidoc Am|UV|U_V|NV what
4719 Cast an NV to UV while avoiding undefined C behavior
4724 #define I_32(what) (cast_i32((NV)(what)))
4725 #define U_32(what) (cast_ulong((NV)(what)))
4726 #define I_V(what) (cast_iv((NV)(what)))
4727 #define U_V(what) (cast_uv((NV)(what)))
4729 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4730 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4731 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4732 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4733 : ((n) < U32_MAX_P1 ? (U32) (n) \
4734 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4735 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4736 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4737 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4738 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4739 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4740 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4743 #define U_S(what) ((U16)U_32(what))
4744 #define U_I(what) ((unsigned int)U_32(what))
4745 #define U_L(what) U_32(what)
4748 =for apidoc_section $integer
4749 =for apidoc Amn|IV|IV_MAX
4750 The largest signed integer that fits in an IV on this platform.
4752 =for apidoc Amn|IV|IV_MIN
4753 The negative signed integer furthest away from 0 that fits in an IV on this
4756 =for apidoc Amn|UV|UV_MAX
4757 The largest unsigned integer that fits in a UV on this platform.
4759 =for apidoc Amn|UV|UV_MIN
4760 The smallest unsigned integer that fits in a UV on this platform. It should
4767 # ifndef Perl_signbit
4768 # define Perl_signbit signbit
4772 /* These do not care about the fractional part, only about the range. */
4773 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4774 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4776 /* Used with UV/IV arguments: */
4777 /* XXXX: need to speed it up */
4778 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4779 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4787 Uid_t getuid (void);
4788 Uid_t geteuid (void);
4789 Gid_t getgid (void);
4790 Gid_t getegid (void);
4794 #ifndef Perl_debug_log
4795 # define Perl_debug_log PerlIO_stderr()
4798 #ifndef Perl_error_log
4799 # define Perl_error_log (PL_stderrgv \
4800 && isGV(PL_stderrgv) \
4801 && GvIOp(PL_stderrgv) \
4802 && IoOFP(GvIOp(PL_stderrgv)) \
4803 ? IoOFP(GvIOp(PL_stderrgv)) \
4808 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4809 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4810 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4811 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4812 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4813 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4814 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4815 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4816 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4817 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4818 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4819 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4820 /* U is reserved for Unofficial, exploratory hacking */
4821 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4822 #define DEBUG_h_FLAG 0x00002000 /* 8192 */
4823 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4824 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4825 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4826 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4827 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4828 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4829 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4830 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4831 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4832 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4833 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4834 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4835 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4836 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4837 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4838 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4840 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4841 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4843 /* Both flags have to be set */
4844 # define DEBUG_BOTH_FLAGS_TEST_(flag1, flag2) \
4845 UNLIKELY((PL_debug & ((flag1)|(flag2))) \
4846 == ((flag1)|(flag2)))
4848 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4849 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4850 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4851 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4852 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4853 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4854 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4855 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4856 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4857 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4858 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4859 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4860 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4861 # define DEBUG_h_TEST_ UNLIKELY(PL_debug & DEBUG_h_FLAG)
4862 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4863 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4864 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4865 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4866 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4867 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4868 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4869 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4870 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4871 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4872 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4873 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4875 /* Locale initialization comes earlier than PL_debug gets set,
4876 * DEBUG_LOCALE_INITIALIZATION_, if defined, will be set early enough */
4877 # ifndef DEBUG_LOCALE_INITIALIZATION_
4878 # define DEBUG_LOCALE_INITIALIZATION_ 0
4880 # define DEBUG_L_TEST_ \
4881 ( UNLIKELY(DEBUG_LOCALE_INITIALIZATION_) \
4882 || UNLIKELY(PL_debug & DEBUG_L_FLAG))
4883 # define DEBUG_Lv_TEST_ \
4884 ( UNLIKELY(DEBUG_LOCALE_INITIALIZATION_) \
4885 || UNLIKELY(DEBUG_BOTH_FLAGS_TEST_(DEBUG_L_FLAG, DEBUG_v_FLAG)))
4886 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4887 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4888 # define DEBUG_Xv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_X_FLAG, DEBUG_v_FLAG)
4889 # define DEBUG_Uv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_U_FLAG, DEBUG_v_FLAG)
4890 # define DEBUG_Pv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_P_FLAG, DEBUG_v_FLAG)
4891 # define DEBUG_yv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_y_FLAG, DEBUG_v_FLAG)
4895 # define DEBUG_p_TEST DEBUG_p_TEST_
4896 # define DEBUG_s_TEST DEBUG_s_TEST_
4897 # define DEBUG_l_TEST DEBUG_l_TEST_
4898 # define DEBUG_t_TEST DEBUG_t_TEST_
4899 # define DEBUG_o_TEST DEBUG_o_TEST_
4900 # define DEBUG_c_TEST DEBUG_c_TEST_
4901 # define DEBUG_P_TEST DEBUG_P_TEST_
4902 # define DEBUG_m_TEST DEBUG_m_TEST_
4903 # define DEBUG_f_TEST DEBUG_f_TEST_
4904 # define DEBUG_r_TEST DEBUG_r_TEST_
4905 # define DEBUG_x_TEST DEBUG_x_TEST_
4906 # define DEBUG_u_TEST DEBUG_u_TEST_
4907 # define DEBUG_U_TEST DEBUG_U_TEST_
4908 # define DEBUG_h_TEST DEBUG_h_TEST_
4909 # define DEBUG_X_TEST DEBUG_X_TEST_
4910 # define DEBUG_D_TEST DEBUG_D_TEST_
4911 # define DEBUG_S_TEST DEBUG_S_TEST_
4912 # define DEBUG_T_TEST DEBUG_T_TEST_
4913 # define DEBUG_R_TEST DEBUG_R_TEST_
4914 # define DEBUG_J_TEST DEBUG_J_TEST_
4915 # define DEBUG_v_TEST DEBUG_v_TEST_
4916 # define DEBUG_C_TEST DEBUG_C_TEST_
4917 # define DEBUG_A_TEST DEBUG_A_TEST_
4918 # define DEBUG_q_TEST DEBUG_q_TEST_
4919 # define DEBUG_M_TEST DEBUG_M_TEST_
4920 # define DEBUG_B_TEST DEBUG_B_TEST_
4921 # define DEBUG_L_TEST DEBUG_L_TEST_
4922 # define DEBUG_i_TEST DEBUG_i_TEST_
4923 # define DEBUG_y_TEST DEBUG_y_TEST_
4924 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4925 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4926 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4927 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4928 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4930 # define PERL_DEB(a) a
4931 # define PERL_DEB2(a,b) a
4932 # define PERL_DEBUG(a) if (PL_debug) a
4933 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4934 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4935 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4936 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4937 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4938 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4939 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4941 /* Temporarily turn off memory debugging in case the a
4942 * does memory allocation, either directly or indirectly. */
4943 # define DEBUG_m(a) \
4945 if (PERL_GET_INTERP) { \
4947 if (DEBUG_m_TEST) { \
4948 PL_debug &= ~DEBUG_m_FLAG; \
4950 PL_debug |= DEBUG_m_FLAG; \
4955 /* These allow you to customize your debugging output for specialized,
4956 * generally temporary ad-hoc purposes. For example, if you need 'errno'
4957 * preserved, you can add definitions to these macros (either in this file for
4958 * the whole program, or before the #include "perl.h" in a particular .c file
4959 * you're trying to debug) and recompile:
4961 * #define DEBUG_PRE_STMTS dSAVE_ERRNO;
4962 * #define DEBUG_POST_STMTS RESTORE_ERRNO;
4964 * Other potential things include displaying timestamps, location information,
4965 * which thread, etc. Here's an example with both errno and location info:
4967 * #define DEBUG_PRE_STMTS dSAVE_ERRNO; \
4968 * PerlIO_printf(Perl_debug_log, "%s:%d: ", __FILE__, __LINE__);
4969 * #define DEBUG_POST RESTORE_ERRNO;
4971 * All DEBUG statements in the compiled scope will have these extra statements
4972 * compiled in; they will be executed only for the DEBUG statements whose flags
4975 #ifndef DEBUG_PRE_STMTS
4976 # define DEBUG_PRE_STMTS
4978 #ifndef DEBUG_POST_STMTS
4979 # define DEBUG_POST_STMTS
4982 # define DEBUG__(t, a) \
4985 DEBUG_PRE_STMTS a; DEBUG_POST_STMTS \
4989 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4991 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4992 # ifdef PERL_EXT_RE_BUILD
4993 # define DEBUG_r(a) STMT_START { \
4994 DEBUG_PRE_STMTS a; DEBUG_POST_STMTS \
4997 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4998 # endif /* PERL_EXT_RE_BUILD */
5000 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
5001 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
5002 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
5003 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
5004 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
5005 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
5006 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
5007 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
5008 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
5009 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
5011 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
5012 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
5013 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
5014 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
5015 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
5016 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
5017 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
5018 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
5019 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
5020 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
5021 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
5022 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
5024 #else /* ! DEBUGGING below */
5026 # define DEBUG_p_TEST (0)
5027 # define DEBUG_s_TEST (0)
5028 # define DEBUG_l_TEST (0)
5029 # define DEBUG_t_TEST (0)
5030 # define DEBUG_o_TEST (0)
5031 # define DEBUG_c_TEST (0)
5032 # define DEBUG_P_TEST (0)
5033 # define DEBUG_m_TEST (0)
5034 # define DEBUG_f_TEST (0)
5035 # define DEBUG_r_TEST (0)
5036 # define DEBUG_x_TEST (0)
5037 # define DEBUG_u_TEST (0)
5038 # define DEBUG_U_TEST (0)
5039 # define DEBUG_h_TEST (0)
5040 # define DEBUG_X_TEST (0)
5041 # define DEBUG_D_TEST (0)
5042 # define DEBUG_S_TEST (0)
5043 # define DEBUG_T_TEST (0)
5044 # define DEBUG_R_TEST (0)
5045 # define DEBUG_J_TEST (0)
5046 # define DEBUG_v_TEST (0)
5047 # define DEBUG_C_TEST (0)
5048 # define DEBUG_A_TEST (0)
5049 # define DEBUG_q_TEST (0)
5050 # define DEBUG_M_TEST (0)
5051 # define DEBUG_B_TEST (0)
5052 # define DEBUG_L_TEST (0)
5053 # define DEBUG_i_TEST (0)
5054 # define DEBUG_y_TEST (0)
5055 # define DEBUG_Xv_TEST (0)
5056 # define DEBUG_Uv_TEST (0)
5057 # define DEBUG_Pv_TEST (0)
5058 # define DEBUG_Lv_TEST (0)
5059 # define DEBUG_yv_TEST (0)
5061 # define PERL_DEB(a)
5062 # define PERL_DEB2(a,b) b
5063 # define PERL_DEBUG(a)
5091 # define DEBUG_Xv(a)
5092 # define DEBUG_Uv(a)
5093 # define DEBUG_Pv(a)
5094 # define DEBUG_Lv(a)
5095 # define DEBUG_yv(a)
5096 #endif /* DEBUGGING */
5099 #define DEBUG_SCOPE(where) \
5101 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
5102 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
5103 __FILE__, __LINE__));
5105 /* Keep the old croak based assert for those who want it, and as a fallback if
5106 the platform is so heretically non-ANSI that it can't assert. */
5108 #define Perl_assert(what) PERL_DEB2( \
5109 ((what) ? ((void) 0) : \
5110 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
5111 "\", line %d", STRINGIFY(what), __LINE__), \
5112 (void) 0)), ((void)0))
5114 /* assert() gets defined if DEBUGGING.
5115 * If no DEBUGGING, the <assert.h> has not been included. */
5117 # define assert(what) Perl_assert(what)
5120 # define assert_(what) assert(what),
5122 # define assert_(what)
5126 I32 (*uf_val)(pTHX_ IV, SV*);
5127 I32 (*uf_set)(pTHX_ IV, SV*);
5131 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
5132 * XS code wanting to be backward compatible can do something
5133 * like the following:
5135 #ifndef PERL_MG_UFUNC
5136 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
5139 static PERL_MG_UFUNC(foo_get, index, val)
5149 #ifndef PERL_MG_UFUNC
5150 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
5155 /* isfinite and others are here rather than in math.h as C99 stipulates */
5160 # if !defined(WIN32) && !defined(VMS)
5162 char *crypt (const char*, const char*);
5164 # endif /* !WIN32 */
5167 char *getlogin (void);
5169 # endif /* !WIN32 */
5170 #endif /* !__cplusplus */
5172 /* Fixme on VMS. This needs to be a run-time, not build time options */
5173 /* Also rename() is affected by this */
5174 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
5175 #define UNLINK unlnk
5176 I32 unlnk (pTHX_ const char*);
5178 #define UNLINK PerlLIO_unlink
5181 /* some versions of glibc are missing the setresuid() proto */
5182 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
5183 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
5185 /* some versions of glibc are missing the setresgid() proto */
5186 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
5187 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
5190 #ifndef HAS_SETREUID
5191 # ifdef HAS_SETRESUID
5192 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
5193 # define HAS_SETREUID
5196 #ifndef HAS_SETREGID
5197 # ifdef HAS_SETRESGID
5198 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
5199 # define HAS_SETREGID
5203 /* Sighandler_t defined in iperlsys.h */
5205 #ifdef HAS_SIGACTION
5206 typedef struct sigaction Sigsave_t;
5208 typedef Sighandler_t Sigsave_t;
5219 # define RUNOPS_DEFAULT Perl_runops_debug
5221 # define RUNOPS_DEFAULT Perl_runops_standard
5224 #if defined(USE_PERLIO)
5225 EXTERN_C void PerlIO_teardown(void);
5227 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
5228 # define PERLIO_TERM \
5230 PerlIO_teardown(); \
5231 MUTEX_DESTROY(&PL_perlio_mutex);\
5234 # define PERLIO_INIT
5235 # define PERLIO_TERM PerlIO_teardown()
5238 # define PERLIO_INIT
5239 # define PERLIO_TERM
5243 # ifdef MUTEX_INIT_CALLS_MALLOC
5244 # define MALLOC_INIT \
5246 PL_malloc_mutex = NULL; \
5247 MUTEX_INIT(&PL_malloc_mutex); \
5249 # define MALLOC_TERM \
5251 perl_mutex tmp = PL_malloc_mutex; \
5252 PL_malloc_mutex = NULL; \
5253 MUTEX_DESTROY(&tmp); \
5256 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
5257 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
5260 # define MALLOC_INIT
5261 # define MALLOC_TERM
5264 #if defined(MULTIPLICITY)
5266 struct perl_memory_debug_header;
5267 struct perl_memory_debug_header {
5269 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
5272 struct perl_memory_debug_header *prev;
5273 struct perl_memory_debug_header *next;
5274 # ifdef PERL_DEBUG_READONLY_COW
5279 #elif defined(PERL_DEBUG_READONLY_COW)
5281 struct perl_memory_debug_header;
5282 struct perl_memory_debug_header {
5288 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
5290 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
5291 (sizeof(struct perl_memory_debug_header) + \
5292 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
5293 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
5296 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
5299 #ifdef PERL_TRACK_MEMPOOL
5300 # ifdef PERL_DEBUG_READONLY_COW
5301 # define INIT_TRACK_MEMPOOL(header, interp) \
5303 (header).interpreter = (interp); \
5304 (header).prev = (header).next = &(header); \
5305 (header).readonly = 0; \
5308 # define INIT_TRACK_MEMPOOL(header, interp) \
5310 (header).interpreter = (interp); \
5311 (header).prev = (header).next = &(header); \
5315 # define INIT_TRACK_MEMPOOL(header, interp)
5318 #ifdef I_MALLOCMALLOC
5319 /* Needed for malloc_size(), malloc_good_size() on some systems */
5320 # include <malloc/malloc.h>
5324 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
5326 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
5327 # ifdef PERL_TRACK_MEMPOOL
5328 # define Perl_safesysmalloc_size(where) \
5329 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
5331 # define Perl_safesysmalloc_size(where) malloc_size(where)
5334 # ifdef HAS_MALLOC_GOOD_SIZE
5335 # ifdef PERL_TRACK_MEMPOOL
5336 # define Perl_malloc_good_size(how_much) \
5337 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
5339 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
5342 /* Having this as the identity operation makes some code simpler. */
5343 # define Perl_malloc_good_size(how_much) (how_much)
5347 typedef int (*runops_proc_t)(pTHX);
5348 typedef void (*share_proc_t) (pTHX_ SV *sv);
5349 typedef int (*thrhook_proc_t) (pTHX);
5350 typedef OP* (*PPADDR_t[]) (pTHX);
5351 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
5352 typedef void (*despatch_signals_proc_t) (pTHX);
5354 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
5355 # include <crt_externs.h> /* for the env array */
5356 # define environ (*_NSGetEnviron())
5357 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
5358 /* VMS and some other platforms don't use the environ array */
5359 EXTERN_C char **environ; /* environment variables supplied via exec */
5362 #define PERL_PATCHLEVEL_H_IMPLICIT
5363 #include "patchlevel.h"
5364 #undef PERL_PATCHLEVEL_H_IMPLICIT
5366 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
5367 STRINGIFY(PERL_VERSION) "." \
5368 STRINGIFY(PERL_SUBVERSION)
5370 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
5371 STRINGIFY(PERL_API_VERSION) "." \
5372 STRINGIFY(PERL_API_SUBVERSION)
5376 /* handy constants */
5377 EXTCONST char PL_warn_uninit[]
5378 INIT("Use of uninitialized value%s%s%s");
5379 EXTCONST char PL_warn_uninit_sv[]
5380 INIT("Use of uninitialized value%" SVf "%s%s");
5381 EXTCONST char PL_warn_nosemi[]
5382 INIT("Semicolon seems to be missing");
5383 EXTCONST char PL_warn_reserved[]
5384 INIT("Unquoted string \"%s\" may clash with future reserved word");
5385 EXTCONST char PL_warn_nl[]
5386 INIT("Unsuccessful %s on filename containing newline");
5387 EXTCONST char PL_no_wrongref[]
5388 INIT("Can't use %s ref as %s ref");
5389 /* The core no longer needs this here. If you require the string constant,
5390 please inline a copy into your own code. */
5391 EXTCONST char PL_no_symref[] __attribute__deprecated__
5392 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
5393 EXTCONST char PL_no_symref_sv[]
5394 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
5396 EXTCONST char PL_no_usym[]
5397 INIT("Can't use an undefined value as %s reference");
5398 EXTCONST char PL_no_aelem[]
5399 INIT("Modification of non-creatable array value attempted, subscript %d");
5400 EXTCONST char PL_no_helem_sv[]
5401 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
5402 EXTCONST char PL_no_modify[]
5403 INIT("Modification of a read-only value attempted");
5404 EXTCONST char PL_no_security[]
5405 INIT("Insecure dependency in %s%s");
5406 EXTCONST char PL_no_sock_func[]
5407 INIT("Unsupported socket function \"%s\" called");
5408 EXTCONST char PL_no_dir_func[]
5409 INIT("Unsupported directory function \"%s\" called");
5410 EXTCONST char PL_no_func[]
5411 INIT("The %s function is unimplemented");
5412 EXTCONST char PL_no_myglob[]
5413 INIT("\"%s\" %s %s can't be in a package");
5414 EXTCONST char PL_no_localize_ref[]
5415 INIT("Can't localize through a reference");
5416 EXTCONST char PL_memory_wrap[]
5417 INIT("panic: memory wrap");
5418 EXTCONST char PL_extended_cp_format[]
5419 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
5420 " and so is not portable");
5421 EXTCONST char PL_Yes[]
5423 EXTCONST char PL_No[]
5425 EXTCONST char PL_Zero[]
5429 =for apidoc_section $numeric
5430 =for apidoc AmTuU|const char *|PL_hexdigit|U8 value
5432 This array, indexed by an integer, converts that value into the character that
5433 represents it. For example, if the input is 8, the return will be a string
5434 whose first character is '8'. What is actually returned is a pointer into a
5435 string. All you are interested in is the first character of that string. To
5436 get uppercase letters (for the values 10..15), add 16 to the index. Hence,
5437 C<PL_hexdigit[11]> is C<'b'>, and C<PL_hexdigit[11+16]> is C<'B'>. Adding 16
5438 to an index whose representation is '0'..'9' yields the same as not adding 16.
5439 Indices outside the range 0..31 result in (bad) undedefined behavior.
5443 EXTCONST char PL_hexdigit[]
5444 INIT("0123456789abcdef0123456789ABCDEF");
5446 EXT char PL_WARN_ALL
5448 EXT char PL_WARN_NONE
5451 /* This is constant on most architectures, a global on OS/2 */
5453 EXTCONST char PL_sh_path[]
5454 INIT(SH_PATH); /* full path of shell */
5458 EXTCONST char PL_cshname[]
5460 # define PL_cshlen (sizeof(CSH "") - 1)
5463 /* These are baked at compile time into any shared perl library.
5464 In future releases this will allow us in main() to sanity test the
5465 library we're linking against. */
5467 EXTCONST U8 PL_revision
5468 INIT(PERL_REVISION);
5469 EXTCONST U8 PL_version
5471 EXTCONST U8 PL_subversion
5472 INIT(PERL_SUBVERSION);
5474 EXTCONST char PL_uuemap[65]
5475 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
5477 /* a special string address whose value is "isa", but which perl knows
5478 * to treat as if it were really "DOES" when printing the method name in
5479 * the "Can't call method '%s'" error message */
5480 EXTCONST char PL_isa_DOES[]
5484 EXTCONST char PL_uudmap[256] =
5485 # include "uudmap.h"
5487 EXTCONST char PL_bitcount[256] =
5488 # include "bitcount.h"
5490 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
5491 EXTCONST int PL_sig_num[] = { SIG_NUM };
5493 EXTCONST char PL_uudmap[256];
5494 EXTCONST char PL_bitcount[256];
5495 EXTCONST char* const PL_sig_name[];
5496 EXTCONST int PL_sig_num[];
5499 /* fast conversion and case folding tables. The folding tables complement the
5500 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
5501 * folds such as outside the range or to multiple characters. */
5506 /* The EBCDIC fold table depends on the code page, and hence is found in
5507 * ebcdic_tables.h */
5509 EXTCONST unsigned char PL_fold[] = {
5510 0, 1, 2, 3, 4, 5, 6, 7,
5511 8, 9, 10, 11, 12, 13, 14, 15,
5512 16, 17, 18, 19, 20, 21, 22, 23,
5513 24, 25, 26, 27, 28, 29, 30, 31,
5514 32, 33, 34, 35, 36, 37, 38, 39,
5515 40, 41, 42, 43, 44, 45, 46, 47,
5516 48, 49, 50, 51, 52, 53, 54, 55,
5517 56, 57, 58, 59, 60, 61, 62, 63,
5518 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5519 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5520 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5521 'x', 'y', 'z', 91, 92, 93, 94, 95,
5522 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5523 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5524 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5525 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5526 128, 129, 130, 131, 132, 133, 134, 135,
5527 136, 137, 138, 139, 140, 141, 142, 143,
5528 144, 145, 146, 147, 148, 149, 150, 151,
5529 152, 153, 154, 155, 156, 157, 158, 159,
5530 160, 161, 162, 163, 164, 165, 166, 167,
5531 168, 169, 170, 171, 172, 173, 174, 175,
5532 176, 177, 178, 179, 180, 181, 182, 183,
5533 184, 185, 186, 187, 188, 189, 190, 191,
5534 192, 193, 194, 195, 196, 197, 198, 199,
5535 200, 201, 202, 203, 204, 205, 206, 207,
5536 208, 209, 210, 211, 212, 213, 214, 215,
5537 216, 217, 218, 219, 220, 221, 222, 223,
5538 224, 225, 226, 227, 228, 229, 230, 231,
5539 232, 233, 234, 235, 236, 237, 238, 239,
5540 240, 241, 242, 243, 244, 245, 246, 247,
5541 248, 249, 250, 251, 252, 253, 254, 255
5544 EXTCONST unsigned char PL_fold_latin1[] = {
5545 /* Full latin1 complement folding, except for three problematic code points:
5546 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
5547 * fold complements outside the Latin1 range, so can't match something
5548 * that isn't in utf8.
5549 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
5550 * not one, so can't be represented in this table.
5552 * All have to be specially handled */
5553 0, 1, 2, 3, 4, 5, 6, 7,
5554 8, 9, 10, 11, 12, 13, 14, 15,
5555 16, 17, 18, 19, 20, 21, 22, 23,
5556 24, 25, 26, 27, 28, 29, 30, 31,
5557 32, 33, 34, 35, 36, 37, 38, 39,
5558 40, 41, 42, 43, 44, 45, 46, 47,
5559 48, 49, 50, 51, 52, 53, 54, 55,
5560 56, 57, 58, 59, 60, 61, 62, 63,
5561 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5562 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5563 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5564 'x', 'y', 'z', 91, 92, 93, 94, 95,
5565 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5566 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5567 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5568 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5569 128, 129, 130, 131, 132, 133, 134, 135,
5570 136, 137, 138, 139, 140, 141, 142, 143,
5571 144, 145, 146, 147, 148, 149, 150, 151,
5572 152, 153, 154, 155, 156, 157, 158, 159,
5573 160, 161, 162, 163, 164, 165, 166, 167,
5574 168, 169, 170, 171, 172, 173, 174, 175,
5575 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
5576 184, 185, 186, 187, 188, 189, 190, 191,
5577 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5578 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5579 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5580 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
5581 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5582 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5583 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5584 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
5585 255 /* y with diaeresis */
5588 /* If these tables are accessed through ebcdic, the access will be converted to
5590 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
5591 0, 1, 2, 3, 4, 5, 6, 7,
5592 8, 9, 10, 11, 12, 13, 14, 15,
5593 16, 17, 18, 19, 20, 21, 22, 23,
5594 24, 25, 26, 27, 28, 29, 30, 31,
5595 32, 33, 34, 35, 36, 37, 38, 39,
5596 40, 41, 42, 43, 44, 45, 46, 47,
5597 48, 49, 50, 51, 52, 53, 54, 55,
5598 56, 57, 58, 59, 60, 61, 62, 63,
5599 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5600 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5601 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5602 'x', 'y', 'z', 91, 92, 93, 94, 95,
5603 96, 97, 98, 99, 100, 101, 102, 103,
5604 104, 105, 106, 107, 108, 109, 110, 111,
5605 112, 113, 114, 115, 116, 117, 118, 119,
5606 120, 121, 122, 123, 124, 125, 126, 127,
5607 128, 129, 130, 131, 132, 133, 134, 135,
5608 136, 137, 138, 139, 140, 141, 142, 143,
5609 144, 145, 146, 147, 148, 149, 150, 151,
5610 152, 153, 154, 155, 156, 157, 158, 159,
5611 160, 161, 162, 163, 164, 165, 166, 167,
5612 168, 169, 170, 171, 172, 173, 174, 175,
5613 176, 177, 178, 179, 180, 181, 182, 183,
5614 184, 185, 186, 187, 188, 189, 190, 191,
5615 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5616 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5617 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5618 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
5619 224, 225, 226, 227, 228, 229, 230, 231,
5620 232, 233, 234, 235, 236, 237, 238, 239,
5621 240, 241, 242, 243, 244, 245, 246, 247,
5622 248, 249, 250, 251, 252, 253, 254, 255
5625 /* upper and title case of latin1 characters, modified so that the three tricky
5626 * ones are mapped to 255 (which is one of the three) */
5627 EXTCONST unsigned char PL_mod_latin1_uc[] = {
5628 0, 1, 2, 3, 4, 5, 6, 7,
5629 8, 9, 10, 11, 12, 13, 14, 15,
5630 16, 17, 18, 19, 20, 21, 22, 23,
5631 24, 25, 26, 27, 28, 29, 30, 31,
5632 32, 33, 34, 35, 36, 37, 38, 39,
5633 40, 41, 42, 43, 44, 45, 46, 47,
5634 48, 49, 50, 51, 52, 53, 54, 55,
5635 56, 57, 58, 59, 60, 61, 62, 63,
5636 64, 65, 66, 67, 68, 69, 70, 71,
5637 72, 73, 74, 75, 76, 77, 78, 79,
5638 80, 81, 82, 83, 84, 85, 86, 87,
5639 88, 89, 90, 91, 92, 93, 94, 95,
5640 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5641 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5642 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5643 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5644 128, 129, 130, 131, 132, 133, 134, 135,
5645 136, 137, 138, 139, 140, 141, 142, 143,
5646 144, 145, 146, 147, 148, 149, 150, 151,
5647 152, 153, 154, 155, 156, 157, 158, 159,
5648 160, 161, 162, 163, 164, 165, 166, 167,
5649 168, 169, 170, 171, 172, 173, 174, 175,
5650 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
5651 184, 185, 186, 187, 188, 189, 190, 191,
5652 192, 193, 194, 195, 196, 197, 198, 199,
5653 200, 201, 202, 203, 204, 205, 206, 207,
5654 208, 209, 210, 211, 212, 213, 214, 215,
5655 216, 217, 218, 219, 220, 221, 222,
5656 # if UNICODE_MAJOR_VERSION > 2 \
5657 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
5658 && UNICODE_DOT_DOT_VERSION >= 8)
5660 # else /* uc(sharp s) is 'sharp s' itself in early unicode */
5663 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5664 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5665 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5666 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
5668 # endif /* !EBCDIC, but still in DOINIT */
5669 #else /* ! DOINIT */
5671 EXTCONST unsigned char PL_fold[];
5672 EXTCONST unsigned char PL_fold_latin1[];
5673 EXTCONST unsigned char PL_mod_latin1_uc[];
5674 EXTCONST unsigned char PL_latin1_lc[];
5678 /* Although only used for debugging, these constants must be available in
5679 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5680 * which has DEBUGGING enabled always */
5682 EXTCONST char* const PL_block_type[] = {
5699 EXTCONST char* PL_block_type[];
5702 /* These are all the compile time options that affect binary compatibility.
5703 Other compile time options that are binary compatible are in perl.c
5704 (in S_Internals_V()). Both are combined for the output of perl -V
5705 However, this string will be embedded in any shared perl library, which will
5706 allow us add a comparison check in perlmain.c in the near future. */
5708 EXTCONST char PL_bincompat_options[] =
5709 # ifdef DEBUG_LEAKING_SCALARS
5710 " DEBUG_LEAKING_SCALARS"
5712 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5713 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5718 # ifdef HAVE_INTERP_INTERN
5719 " HAVE_INTERP_INTERN"
5721 # ifdef MULTIPLICITY
5727 # ifdef NO_HASH_SEED
5730 # ifdef PERLIO_LAYERS
5733 # ifdef PERL_DEBUG_READONLY_COW
5734 " PERL_DEBUG_READONLY_COW"
5736 # ifdef PERL_DEBUG_READONLY_OPS
5737 " PERL_DEBUG_READONLY_OPS"
5739 # ifdef PERL_HASH_FUNC_DEFINE
5740 /* note that this is different from the others, PERL_HASH_FUNC_DEFINE
5741 * is a string which says which define was defined. */
5742 " " PERL_HASH_FUNC_DEFINE
5744 # ifdef PERL_HASH_USE_SBOX32
5745 " PERL_HASH_USE_SBOX32"
5747 " PERL_HASH_NO_SBOX32"
5749 # ifdef PERL_IMPLICIT_SYS
5750 " PERL_IMPLICIT_SYS"
5755 # ifdef PERL_SAWAMPERSAND
5756 " PERL_SAWAMPERSAND"
5758 # ifdef PERL_TRACK_MEMPOOL
5759 " PERL_TRACK_MEMPOOL"
5761 # ifdef PERL_USES_PL_PIDSTATUS
5762 " PERL_USES_PL_PIDSTATUS"
5764 # ifdef USE_64_BIT_ALL
5767 # ifdef USE_64_BIT_INT
5773 # ifdef USE_ITHREADS
5776 # ifdef USE_LARGE_FILES
5779 # ifdef USE_LOCALE_COLLATE
5780 " USE_LOCALE_COLLATE"
5782 # ifdef USE_LOCALE_NUMERIC
5783 " USE_LOCALE_NUMERIC"
5785 # ifdef USE_LOCALE_TIME
5788 # ifdef USE_LONG_DOUBLE
5794 # ifdef USE_QUADMATH
5797 # ifdef USE_REENTRANT_API
5798 " USE_REENTRANT_API"
5803 # ifdef VMS_DO_SOCKETS
5806 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5807 " VMS_SHORTEN_LONG_SYMBOLS"
5809 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5810 " VMS_SYMBOL_CASE_AS_IS"
5812 ""; /* keep this on a line by itself, WITH the empty string */
5814 EXTCONST char PL_bincompat_options[];
5817 #ifndef PERL_SET_PHASE
5818 # define PERL_SET_PHASE(new_phase) \
5819 PERL_DTRACE_PROBE_PHASE(new_phase); \
5820 PL_phase = new_phase;
5823 /* The interpreter phases. If these ever change, PL_phase_names right below will
5824 * need to be updated accordingly. */
5826 PERL_PHASE_CONSTRUCT = 0,
5827 PERL_PHASE_START = 1,
5828 PERL_PHASE_CHECK = 2,
5829 PERL_PHASE_INIT = 3,
5832 PERL_PHASE_DESTRUCT = 6
5836 EXTCONST char *const PL_phase_names[] = {
5846 EXTCONST char *const PL_phase_names[];
5850 =for apidoc_section $utility
5852 =for apidoc phase_name
5854 Returns the given phase's name as a NUL-terminated string.
5856 For example, to print a stack trace that includes the current
5857 interpreter phase you might do:
5859 const char* phase_name = phase_name(PL_phase);
5860 mess("This is weird. (Perl phase: %s)", phase_name);
5865 #define phase_name(phase) (PL_phase_names[phase])
5868 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5869 * instead of using the newer PL_phase, which provides everything PL_dirty
5870 * provided, and more. */
5871 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5873 # define PL_amagic_generation PL_na
5874 # define PL_encoding ((SV *)NULL)
5875 #endif /* !PERL_CORE */
5877 #define PL_hints PL_compiling.cop_hints
5878 #define PL_maxo MAXO
5882 /*****************************************************************************/
5883 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5884 /*****************************************************************************/
5885 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5888 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5897 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5905 XATTRBLOCK, /* next token should be an attribute or block */
5906 XATTRTERM, /* next token should be an attribute, or block in a term */
5910 XTERMORDORDOR /* evil hack */
5911 /* update exp_name[] in toke.c if adding to this enum */
5914 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5916 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5917 special and there is no need for HINT_PRIVATE_MASK for COPs.
5919 NOTE: The typical module using these has the bit value hard-coded, so don't
5920 blindly change the values of these.
5922 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5923 is for "use locale 'FOO'" which excludes some categories. It requires going
5924 to %^H to find out which are in and which are out. This could be extended
5925 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5927 #define HINT_INTEGER 0x00000001 /* integer pragma */
5928 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5929 #define HINT_LOCALE 0x00000004 /* locale pragma */
5930 #define HINT_BYTES 0x00000008 /* bytes pragma */
5931 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5933 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5934 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5935 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5937 #define HINT_BLOCK_SCOPE 0x00000100
5938 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5939 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5940 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5942 /* The HINT_NEW_* constants are used by the overload pragma */
5943 #define HINT_NEW_INTEGER 0x00001000
5944 #define HINT_NEW_FLOAT 0x00002000
5945 #define HINT_NEW_BINARY 0x00004000
5946 #define HINT_NEW_STRING 0x00008000
5947 #define HINT_NEW_RE 0x00010000
5948 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5949 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5950 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5952 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5953 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5955 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5956 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5958 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5960 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5962 #define HINT_FEATURE_MASK 0x3c000000 /* 4 bits for feature bundles */
5964 /* Note: Used for HINT_M_VMSISH_*,
5965 currently defined by vms/vmsish.h:
5970 #define HINT_ALL_STRICT HINT_STRICT_REFS \
5971 | HINT_STRICT_SUBS \
5974 #ifdef USE_STRICT_BY_DEFAULT
5975 #define HINTS_DEFAULT HINT_ALL_STRICT
5977 #define HINTS_DEFAULT 0
5980 /* flags for PL_sawampersand */
5982 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5983 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5984 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5986 #ifndef PERL_SAWAMPERSAND
5987 # define PL_sawampersand \
5988 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5991 /* Used for debugvar magic */
5992 #define DBVARMG_SINGLE 0
5993 #define DBVARMG_TRACE 1
5994 #define DBVARMG_SIGNAL 2
5995 #define DBVARMG_COUNT 3
5997 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5998 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5999 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
6001 /* Various states of the input record separator SV (rs) */
6002 #define RsSNARF(sv) (! SvOK(sv))
6003 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
6004 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
6005 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
6007 /* A struct for keeping various DEBUGGING related stuff,
6008 * neatly packed. Currently only scratch variables for
6009 * constructing debug output are included. Needed always,
6010 * not just when DEBUGGING, though, because of the re extension. c*/
6011 struct perl_debug_pad {
6015 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
6016 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
6017 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
6020 /* Enable variables which are pointers to functions */
6021 typedef void (*peep_t)(pTHX_ OP* o);
6022 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
6023 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
6024 char* strend, char* strbeg, I32 minend,
6025 SV* screamer, void* data, U32 flags);
6026 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
6027 char *strpos, char *strend,
6029 re_scream_pos_data *d);
6030 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
6031 typedef void (*regfree_t) (pTHX_ struct regexp* r);
6032 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
6033 typedef I32 (*re_fold_t)(pTHX_ const char *, char const *, I32);
6035 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
6036 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
6037 typedef void (*SVFUNC_t) (pTHX_ SV* const);
6038 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
6039 typedef void (*XSINIT_t) (pTHX);
6040 typedef void (*ATEXIT_t) (pTHX_ void*);
6041 typedef void (*XSUBADDR_t) (pTHX_ CV *);
6043 enum Perl_custom_infix_precedence {
6044 /* These numbers are spaced out to give room to insert new values as
6045 * required. They form part of the ABI contract with XS::Parse::Infix so
6046 * they should not be changed within a stable release cycle, but they can
6047 * be freely altered during a development cycle because no ABI guarantees
6048 * are made at that time */
6049 INFIX_PREC_LOW = 10, /* non-associative */
6050 INFIX_PREC_LOGICAL_OR_LOW = 30, /* left-associative, as `or` */
6051 INFIX_PREC_LOGICAL_AND_LOW = 40, /* left-associative, as `and` */
6052 INFIX_PREC_ASSIGN = 50, /* right-associative, as `=` */
6053 INFIX_PREC_LOGICAL_OR = 70, /* left-associative, as `||` */
6054 INFIX_PREC_LOGICAL_AND = 80, /* left-associative, as `&&` */
6055 INFIX_PREC_REL = 90, /* non-associative, just below `==` */
6056 INFIX_PREC_ADD = 110, /* left-associative, as `+` */
6057 INFIX_PREC_MUL = 130, /* left-associative, as `*` */
6058 INFIX_PREC_POW = 150, /* right-associative, as `**` */
6059 INFIX_PREC_HIGH = 170, /* non-associative */
6060 /* Try to keep within the range of a U8 in case we need to split the field
6063 struct Perl_custom_infix;
6064 struct Perl_custom_infix {
6065 enum Perl_custom_infix_precedence prec;
6066 void (*parse)(pTHX_ SV **opdata, struct Perl_custom_infix *); /* optional */
6067 OP *(*build_op)(pTHX_ SV **opdata, OP *lhs, OP *rhs, struct Perl_custom_infix *);
6070 typedef OP* (*Perl_ppaddr_t)(pTHX);
6071 typedef OP* (*Perl_check_t) (pTHX_ OP*);
6072 typedef void(*Perl_ophook_t)(pTHX_ OP*);
6073 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
6074 typedef STRLEN (*Perl_infix_plugin_t)(pTHX_ char*, STRLEN, struct Perl_custom_infix **);
6075 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
6077 typedef void(*globhook_t)(pTHX);
6079 #define KEYWORD_PLUGIN_DECLINE 0
6080 #define KEYWORD_PLUGIN_STMT 1
6081 #define KEYWORD_PLUGIN_EXPR 2
6083 /* Interpreter exitlist entry */
6084 typedef struct exitlistentry {
6085 void (*fn) (pTHX_ void*);
6087 } PerlExitListEntry;
6089 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
6090 /* These have to be before perlvars.h */
6091 #if !defined(HAS_SIGACTION) && defined(VMS)
6092 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
6094 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
6095 #if defined(KILL_BY_SIGPRC)
6096 # define FAKE_DEFAULT_SIGNAL_HANDLERS
6099 #if !defined(MULTIPLICITY)
6101 struct interpreter {
6107 /* If we have multiple interpreters define a struct
6108 holding variables which must be per-interpreter
6109 If we don't have threads anything that would have
6110 be per-thread is per-interpreter.
6113 /* Set up PERLVAR macros for populating structs */
6114 # define PERLVAR(prefix,var,type) type prefix##var;
6116 /* 'var' is an array of length 'n' */
6117 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
6119 /* initialize 'var' to init' */
6120 # define PERLVARI(prefix,var,type,init) type prefix##var;
6122 /* like PERLVARI, but make 'var' a const */
6123 # define PERLVARIC(prefix,var,type,init) type prefix##var;
6125 struct interpreter {
6126 # include "intrpvar.h"
6129 EXTCONST U16 PL_interp_size
6130 INIT(sizeof(struct interpreter));
6132 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
6133 STRUCT_OFFSET(struct interpreter, member) + \
6134 sizeof(((struct interpreter*)0)->member)
6136 /* This will be useful for subsequent releases, because this has to be the
6137 same in your libperl as in main(), else you have a mismatch and must abort.
6139 EXTCONST U16 PL_interp_size_5_18_0
6140 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
6143 /* Done with PERLVAR macros for now ... */
6149 #endif /* MULTIPLICITY */
6151 struct tempsym; /* defined in pp_pack.c */
6158 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
6159 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
6162 # include "malloc_ctl.h"
6166 * This provides a layer of functions and macros to ensure extensions will
6167 * get to use the same RTL functions as the core.
6170 # include "win32iop.h"
6176 /* this has structure inits, so it cannot be included before here */
6179 /* The following must follow proto.h as #defines mess up syntax */
6181 #if !defined(PERL_FOR_X2P)
6182 # include "embedvar.h"
6185 /* Now include all the 'global' variables
6186 * If we don't have threads or multiple interpreters
6187 * these include variables that would have been their struct-s
6190 #define PERLVAR(prefix,var,type) EXT type PL_##var;
6191 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
6192 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
6193 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
6195 #if !defined(MULTIPLICITY)
6197 # include "intrpvar.h"
6199 # define PL_sv_yes (PL_sv_immortals[0])
6200 # define PL_sv_undef (PL_sv_immortals[1])
6201 # define PL_sv_no (PL_sv_immortals[2])
6202 # define PL_sv_zero (PL_sv_immortals[3])
6206 /* All core uses now exterminated. Ensure no zombies can return: */
6210 /* Now all the config stuff is setup we can include embed.h
6211 In particular, need the relevant *ish file included already, as it may
6212 define HAVE_INTERP_INTERN */
6217 # include "perlvars.h"
6226 #if !defined(MULTIPLICITY)
6227 /* Set up PERLVAR macros for populating structs */
6228 # define PERLVAR(prefix,var,type) type prefix##var;
6229 /* 'var' is an array of length 'n' */
6230 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
6231 /* initialize 'var' to init' */
6232 # define PERLVARI(prefix,var,type,init) type prefix##var;
6233 /* like PERLVARI, but make 'var' a const */
6234 # define PERLVARIC(prefix,var,type,init) type prefix##var;
6236 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
6237 struct PerlHandShakeInterpreter {
6238 # include "intrpvar.h"
6248 /* dummy variables that hold pointers to both runops functions, thus forcing
6249 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
6251 EXTCONST runops_proc_t PL_runops_std
6252 INIT(Perl_runops_standard);
6253 EXTCONST runops_proc_t PL_runops_dbg
6254 INIT(Perl_runops_debug);
6256 #define EXT_MGVTBL EXTCONST MGVTBL
6258 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
6259 #define PERL_MAGIC_VALUE_MAGIC 0x80
6260 #define PERL_MAGIC_VTABLE_MASK 0x3F
6262 /* can this type of magic be attached to a readonly SV? */
6263 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
6264 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
6266 /* Is this type of magic container magic (%ENV, $1 etc),
6267 * or value magic (pos, taint etc)?
6269 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
6270 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
6272 #include "mg_vtable.h"
6275 EXTCONST U8 PL_magic_data[256] =
6276 # include "mg_data.h"
6279 EXTCONST U8 PL_magic_data[256];
6283 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO OBJ */
6285 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0 };
6287 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0 };
6289 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0 };
6291 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0 };
6293 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0 };
6295 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0 };
6298 PL_deBruijn_bitpos_tab32[] = {
6299 /* https://graphics.stanford.edu/~seander/bithacks.html#IntegerLogDeBruijn */
6300 0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
6301 31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
6305 PL_deBruijn_bitpos_tab64[] = {
6306 /* https://stackoverflow.com/questions/11376288/fast-computing-of-log2-for-64-bit-integers */
6307 63, 0, 58, 1, 59, 47, 53, 2, 60, 39, 48, 27, 54, 33, 42, 3,
6308 61, 51, 37, 40, 49, 18, 28, 20, 55, 30, 34, 11, 43, 14, 22, 4,
6309 62, 57, 46, 52, 38, 26, 32, 41, 50, 36, 17, 19, 29, 10, 13, 21,
6310 56, 45, 25, 31, 35, 16, 9, 12, 44, 24, 15, 8, 23, 7, 6, 5
6315 EXTCONST bool PL_valid_types_IVX[];
6316 EXTCONST bool PL_valid_types_NVX[];
6317 EXTCONST bool PL_valid_types_PVX[];
6318 EXTCONST bool PL_valid_types_RV[];
6319 EXTCONST bool PL_valid_types_IV_set[];
6320 EXTCONST bool PL_valid_types_NV_set[];
6321 EXTCONST U8 PL_deBruijn_bitpos_tab32[];
6322 EXTCONST U8 PL_deBruijn_bitpos_tab64[];
6326 /* The constants for using PL_deBruijn_bitpos_tab */
6327 #define PERL_deBruijnMagic32_ 0x077CB531
6328 #define PERL_deBruijnShift32_ 27
6329 #define PERL_deBruijnMagic64_ 0x07EDD5E59A4E28C2
6330 #define PERL_deBruijnShift64_ 58
6332 /* In C99 we could use designated (named field) union initializers.
6333 * In C89 we need to initialize the member declared first.
6334 * In C++ we need extern C initializers.
6336 * With the U8_NV version you will want to have inner braces,
6337 * while with the NV_U8 use just the NV. */
6339 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
6340 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
6342 /* if these never got defined, they need defaults */
6343 #ifndef PERL_SET_CONTEXT
6344 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
6347 #ifdef USE_PERL_SWITCH_LOCALE_CONTEXT
6348 # define PERL_SET_LOCALE_CONTEXT(i) \
6350 if (LIKELY(! PL_veto_switch_non_tTHX_context)) \
6351 Perl_switch_locale_context(i); \
6354 /* In some Configurations there may be per-thread information that is
6355 * carried in a library instead of perl's tTHX structure. This macro is to
6356 * be used to handle those when tTHX is changed. Only locale handling is
6357 * currently known to be affected. */
6358 # define PERL_SET_NON_tTHX_CONTEXT(i) \
6359 STMT_START { if (i) PERL_SET_LOCALE_CONTEXT(i); } STMT_END
6361 # define PERL_SET_LOCALE_CONTEXT(i) NOOP
6362 # define PERL_SET_NON_tTHX_CONTEXT(i) NOOP
6365 #ifndef PERL_GET_CONTEXT
6366 # define PERL_GET_CONTEXT PERL_GET_INTERP
6369 #ifndef PERL_GET_THX
6370 # define PERL_GET_THX ((void*)NULL)
6373 #ifndef PERL_SET_THX
6374 # define PERL_SET_THX(t) NOOP
6379 /* The tables below are adapted from
6380 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
6383 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
6385 Permission is hereby granted, free of charge, to any person obtaining a copy of
6386 this software and associated documentation files (the "Software"), to deal in
6387 the Software without restriction, including without limitation the rights to
6388 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
6389 of the Software, and to permit persons to whom the Software is furnished to do
6390 so, subject to the following conditions:
6392 The above copyright notice and this permission notice shall be included in all
6393 copies or substantial portions of the Software.
6395 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
6396 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
6397 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
6398 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
6399 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
6400 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
6406 # if 0 /* This is the original table given in
6407 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
6408 static U8 utf8d_C9[] = {
6409 /* The first part of the table maps bytes to character classes that
6410 * to reduce the size of the transition table and create bitmasks. */
6411 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/
6412 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/
6413 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-5F*/
6414 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-7F*/
6415 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, /*-9F*/
6416 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /*-BF*/
6417 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /*-DF*/
6418 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, /*-FF*/
6420 /* The second part is a transition table that maps a combination
6421 * of a state of the automaton and a character class to a state. */
6422 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
6423 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
6424 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
6425 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
6426 12,36,12,12,12,12,12,12,12,12,12,12
6431 /* This is a version of the above table customized for Perl that doesn't
6432 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
6433 * machines). The classes have been renumbered so that the patterns are more
6434 * evident in the table. The class numbers are structured so the values are:
6436 * a) UTF-8 invariant code points
6438 * b) Start bytes that always lead to either overlongs or some class of code
6439 * point that needs outside intervention for handling (such as to raise a
6442 * c) Start bytes that never lead to one of the above
6443 * number of bytes in complete sequence
6444 * d) Rest of start bytes (they can be resolved through this algorithm) and
6445 * continuation bytes
6446 * arbitrary class number chosen to not conflict with the above
6447 * classes, and to index into the remaining table
6449 * It would make the code simpler if start byte FF could also be handled, but
6450 * doing so would mean adding two more classes (one from splitting 80 from 81,
6451 * and one for FF), and nodes for each of 6 new continuation bytes. The
6452 * current table has 436 entries; the new one would require 140 more = 576 (2
6453 * additional classes for each of the 10 existing nodes, and 20 for each of 6
6454 * new nodes. The array would have to be made U16 instead of U8, not worth it
6455 * for this rarely encountered case
6458 * 00-7F 0 Always legal, single byte sequence
6459 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
6461 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
6462 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
6463 * 88-8F 10 Not legal immediately after start bytes E0 F0
6464 * 90-9F 11 Not legal immediately after start byte E0
6465 * A0-BF 12 Always legal continuation byte
6466 * C0,C1 1 Not legal: overlong
6467 * C2-DF 2 Legal start byte for two byte sequences
6468 * E0 13 Some sequences are overlong; others legal
6469 * E1-EF 3 Legal start byte for three byte sequences
6470 * F0 14 Some sequences are overlong; others legal
6471 * F1-F7 4 Legal start byte for four byte sequences
6472 * F8 15 Some sequences are overlong; others legal
6473 * F9-FB 5 Legal start byte for five byte sequences
6474 * FC 16 Some sequences are overlong; others legal
6475 * FD 6 Legal start byte for six byte sequences
6476 * FE 17 Some sequences are overlong; others legal
6477 * (is 1 on 32-bit machines, since it overflows)
6478 * FF 1 Need to handle specially
6481 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
6482 /* The first part of the table maps bytes to character classes to reduce
6483 * the size of the transition table and create bitmasks. */
6484 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6485 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6486 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6487 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6488 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6489 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6490 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6491 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6492 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
6493 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
6494 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
6495 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
6496 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6497 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6498 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
6499 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
6507 /* The second part is a transition table that maps a combination
6508 * of a state of the automaton and a character class to a new state, called a
6509 * node. The nodes are:
6510 * N0 The initial state, and final accepting one.
6511 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6512 * immediately when the start byte indicates a two-byte sequence
6513 * N2 Any two continuation bytes left.
6514 * N3 Any three continuation bytes left.
6515 * N4 Any four continuation bytes left.
6516 * N5 Any five continuation bytes left.
6517 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6518 * the other continuations transition to N1
6519 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6520 * the other continuations transition to N2
6521 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
6522 * the other continuations transition to N3
6523 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
6524 * the other continuations transition to N4
6525 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
6526 * the other continuations transition to N5
6527 * 1 Reject. All transitions not mentioned above (except the single
6528 * byte ones (as they are always legal)) are to this state.
6531 # if defined(PERL_CORE)
6532 # define NUM_CLASSES 18
6534 # define N1 ((N0) + NUM_CLASSES)
6535 # define N2 ((N1) + NUM_CLASSES)
6536 # define N3 ((N2) + NUM_CLASSES)
6537 # define N4 ((N3) + NUM_CLASSES)
6538 # define N5 ((N4) + NUM_CLASSES)
6539 # define N6 ((N5) + NUM_CLASSES)
6540 # define N7 ((N6) + NUM_CLASSES)
6541 # define N8 ((N7) + NUM_CLASSES)
6542 # define N9 ((N8) + NUM_CLASSES)
6543 # define N10 ((N9) + NUM_CLASSES)
6545 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
6546 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
6547 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
6548 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
6549 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
6550 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
6551 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
6553 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
6554 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
6555 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
6556 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
6557 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
6560 /* And below is a version of the above table that accepts only strict UTF-8.
6561 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
6562 * passes this dfa, it will be for a well-formed, non-problematic code point
6563 * that can be returned immediately.
6565 * The "Implementation details" portion of
6566 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
6567 * the first portion of the table maps each possible byte into a character
6568 * class. And that the classes for those bytes which are start bytes have been
6569 * carefully chosen so they serve as well to be used as a shift value to mask
6570 * off the leading 1 bits of the start byte. Unfortunately the addition of
6571 * being able to distinguish non-characters makes this not fully work. This is
6572 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
6574 * 1) ED because it could be a surrogate
6575 * 2) EF because it could be a non-character
6576 * 3) the rest, which can never evaluate to a problematic code point.
6578 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
6579 * shift (and hence class number) of either 3 or 4 to get a mask that works.
6580 * But that only allows two categories, and we need three. khw made the
6581 * decision to therefore treat the ED start byte as an error, so that the dfa
6582 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
6583 * distinguish EF vs the rest. Then special code is used to deal with ED,
6584 * that's executed only when the dfa drops out. The code points started by ED
6585 * are half surrogates, and half hangul syllables. This means that 2048 of
6586 * the hangul syllables (about 18%) take longer than all other non-problematic
6587 * code points to handle.
6589 * The changes to handle non-characters requires the addition of states and
6590 * classes to the dfa. (See the section on "Mapping bytes to character
6591 * classes" in the linked-to document for further explanation of the original
6615 * F1-F3 6 (6 bits can be stripped)
6616 * F4 5 (only 5 can be stripped)
6620 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
6621 /* The first part of the table maps bytes to character classes to reduce
6622 * the size of the transition table and create bitmasks. */
6623 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6624 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6625 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6626 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6627 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6628 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6629 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6630 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6631 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
6632 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
6633 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
6634 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
6635 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6636 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6637 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
6638 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6640 /* The second part is a transition table that maps a combination
6641 * of a state of the automaton and a character class to a new state, called a
6642 * node. The nodes are:
6643 * N0 The initial state, and final accepting one.
6644 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6645 * immediately when the start byte indicates a two-byte sequence
6646 * N2 Any two continuation bytes left.
6647 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6648 * the other continuations transition to state N1
6649 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
6650 * the other continuations transitions to N1
6651 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6652 * [9AB]F transition to N10; the other continuations to N2.
6653 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
6654 * to N10; the other continuations to N2.
6655 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6656 * (non-unicode); 8F transitions to N10; the other continuations to N2
6657 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
6658 * (non-characters); the other continuations transition to N0.
6659 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
6660 * (non-characters); the other continuations transition to N0.
6661 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
6662 * Continuation byte BF transitions to N11; the other continuations to
6664 * N11 Initial sequence is the two bytes given in N10 followed by BF.
6665 * Continuation bytes BE and BF are illegal (non-characters); the other
6666 * continuations transition to N0.
6667 * 1 Reject. All transitions not mentioned above (except the single
6668 * byte ones (as they are always legal) are to this state.
6682 # define NUM_CLASSES 19
6684 # define N1 ((N0) + NUM_CLASSES)
6685 # define N2 ((N1) + NUM_CLASSES)
6686 # define N3 ((N2) + NUM_CLASSES)
6687 # define N4 ((N3) + NUM_CLASSES)
6688 # define N5 ((N4) + NUM_CLASSES)
6689 # define N6 ((N5) + NUM_CLASSES)
6690 # define N7 ((N6) + NUM_CLASSES)
6691 # define N8 ((N7) + NUM_CLASSES)
6692 # define N9 ((N8) + NUM_CLASSES)
6693 # define N10 ((N9) + NUM_CLASSES)
6694 # define N11 ((N10) + NUM_CLASSES)
6696 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
6697 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6698 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6699 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
6701 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
6702 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6703 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6704 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6705 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6706 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6707 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6708 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6709 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6712 /* And below is yet another version of the above tables that accepts only UTF-8
6713 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6714 * it allows non-characters. This is isomorphic to the original table
6715 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6729 * F1-F3 6 (6 bits can be stripped)
6730 * F4 5 (only 5 can be stripped)
6734 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6735 /* The first part of the table maps bytes to character classes to reduce
6736 * the size of the transition table and create bitmasks. */
6737 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6738 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6739 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6740 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6741 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6742 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6743 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6744 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6745 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6746 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6747 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6748 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6749 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6750 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6751 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6752 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6754 /* The second part is a transition table that maps a combination
6755 * of a state of the automaton and a character class to a new state, called a
6756 * node. The nodes are:
6757 * N0 The initial state, and final accepting one.
6758 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6759 * immediately when the start byte indicates a two-byte sequence
6760 * N2 Any two continuation bytes left.
6761 * N3 Any three continuation bytes left.
6762 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6763 * the other continuations transition to state N1
6764 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6765 * so are illegal. The other continuations transition to state N1.
6766 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6767 * the other continuations transition to N2
6768 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6769 * (non-unicode); the other continuations transition to N2
6770 * 1 Reject. All transitions not mentioned above (except the single
6771 * byte ones (as they are always legal) are to this state.
6783 # define NUM_CLASSES 12
6785 # define N1 ((N0) + NUM_CLASSES)
6786 # define N2 ((N1) + NUM_CLASSES)
6787 # define N3 ((N2) + NUM_CLASSES)
6788 # define N4 ((N3) + NUM_CLASSES)
6789 # define N5 ((N4) + NUM_CLASSES)
6790 # define N6 ((N5) + NUM_CLASSES)
6791 # define N7 ((N6) + NUM_CLASSES)
6793 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6794 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6795 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6796 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6797 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6799 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6800 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6801 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6802 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6805 # endif /* defined(PERL_CORE) */
6806 # else /* End of is DOINIT */
6808 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6809 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6810 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6813 #endif /* end of isn't EBCDIC */
6815 #include "overload.h"
6824 CV* table[NofAMmeth];
6826 struct am_table_short {
6832 typedef struct am_table AMT;
6833 typedef struct am_table_short AMTS;
6835 #define AMGfallNEVER 1
6837 #define AMGfallYES 3
6839 #define AMTf_AMAGIC 1
6840 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6841 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6842 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6844 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6847 * some compilers like to redefine cos et alia as faster
6848 * (and less accurate?) versions called F_cos et cetera (Quidquid
6849 * latine dictum sit, altum viditur.) This trick collides with
6850 * the Perl overloading (amg). The following #defines fool both.
6855 # define F_atan2_amg atan2_amg
6858 # define F_cos_amg cos_amg
6861 # define F_exp_amg exp_amg
6864 # define F_log_amg log_amg
6867 # define F_pow_amg pow_amg
6870 # define F_sin_amg sin_amg
6873 # define F_sqrt_amg sqrt_amg
6875 #endif /* _FASTMATH */
6877 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6878 PERLDBf_NOOPT | PERLDBf_INTER | \
6879 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6880 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6882 /* No _NONAME, _GOTO */
6883 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6884 #define PERLDBf_LINE 0x02 /* Keep line # */
6885 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6886 #define PERLDBf_INTER 0x08 /* Preserve more data for
6887 later inspections */
6888 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6889 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6890 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6891 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6892 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6893 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6894 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6895 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6896 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6898 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6899 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6900 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6901 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6902 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6903 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6904 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6905 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6906 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6907 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6908 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6909 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6910 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6912 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6915 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6916 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6917 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6918 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6919 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6920 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6921 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6922 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6924 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6925 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6926 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6927 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6928 # define USER_PROP_MUTEX_INIT NOOP
6929 # define USER_PROP_MUTEX_LOCK NOOP
6930 # define USER_PROP_MUTEX_UNLOCK NOOP
6931 # define USER_PROP_MUTEX_TERM NOOP
6934 #ifdef USE_LOCALE /* These locale things are all subject to change */
6936 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6938 # define IN_LOCALE_RUNTIME (PL_curcop \
6939 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6941 /* Returns TRUE if either form of the locale pragma is in effect */
6942 # define IN_SOME_LOCALE_FORM_RUNTIME \
6943 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6945 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6946 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6947 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6950 =for apidoc_section $locale
6952 =for apidoc Amn|bool|IN_LOCALE
6954 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6955 locale>>) is in effect.
6957 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6959 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6960 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6962 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6964 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6965 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6970 # define IN_LOCALE \
6971 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6972 # define IN_SOME_LOCALE_FORM \
6973 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6974 : IN_SOME_LOCALE_FORM_RUNTIME)
6976 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6977 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6979 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6980 # define IN_LC_PARTIAL_RUNTIME \
6981 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6983 # define IN_LC_COMPILETIME(category) \
6984 ( IN_LC_ALL_COMPILETIME \
6985 || ( IN_LC_PARTIAL_COMPILETIME \
6986 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6987 # define IN_LC_RUNTIME(category) \
6988 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6989 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6990 # define IN_LC(category) \
6991 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6993 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6995 /* This internal macro should be called from places that operate under
6996 * locale rules. If there is a problem with the current locale that
6997 * hasn't been raised yet, it will output a warning this time. Because
6998 * this will so rarely be true, there is no point to optimize for time;
6999 * instead it makes sense to minimize space used and do all the work in
7000 * the rarely called function */
7001 # ifdef USE_LOCALE_CTYPE
7002 # define CHECK_AND_WARN_PROBLEMATIC_LOCALE_ \
7004 if (UNLIKELY(PL_warn_locale)) { \
7005 Perl_warn_problematic_locale(); \
7009 # define CHECK_AND_WARN_PROBLEMATIC_LOCALE_
7013 /* These two internal macros are called when a warning should be raised,
7014 * and will do so if enabled. The first takes a single code point
7015 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
7016 * string, and an end position which it won't try to read past */
7017 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
7019 if (! IN_UTF8_CTYPE_LOCALE && ckWARN(WARN_LOCALE)) { \
7020 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
7021 "Wide character (U+%" UVXf ") in %s",\
7022 (UV) cp, OP_DESC(PL_op)); \
7026 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
7027 STMT_START { /* Check if to warn before doing the conversion work */\
7028 if (! IN_UTF8_CTYPE_LOCALE && ckWARN(WARN_LOCALE)) { \
7029 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
7030 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
7031 "Wide character (U+%" UVXf ") in %s", \
7033 ? UNICODE_REPLACEMENT \
7039 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
7040 #else /* No locale usage */
7041 # define IN_LOCALE_RUNTIME 0
7042 # define IN_SOME_LOCALE_FORM_RUNTIME 0
7043 # define IN_LOCALE_COMPILETIME 0
7044 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
7045 # define IN_LOCALE 0
7046 # define IN_SOME_LOCALE_FORM 0
7047 # define IN_LC_ALL_COMPILETIME 0
7048 # define IN_LC_ALL_RUNTIME 0
7049 # define IN_LC_PARTIAL_COMPILETIME 0
7050 # define IN_LC_PARTIAL_RUNTIME 0
7051 # define IN_LC_COMPILETIME(category) 0
7052 # define IN_LC_RUNTIME(category) 0
7053 # define IN_LC(category) 0
7054 # define CHECK_AND_WARN_PROBLEMATIC_LOCALE_
7055 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
7056 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
7059 #define locale_panic_via_(m, f, l) Perl_locale_panic((m), __LINE__, f, l)
7060 #define locale_panic_(m) locale_panic_via_((m), __FILE__, __LINE__)
7062 /* Locale/thread synchronization macros. */
7063 #if ! defined(USE_LOCALE_THREADS)
7064 # define LOCALE_LOCK_(cond) NOOP
7065 # define LOCALE_UNLOCK_ NOOP
7066 # define LOCALE_INIT
7067 # define LOCALE_TERM
7069 #else /* Below: Threaded, and locales are supported */
7071 /* A locale mutex is required on all such threaded builds.
7073 * This mutex simulates a general (or recursive) semaphore. The current
7074 * thread will lock the mutex if the per-thread variable is zero, and then
7075 * increments that variable. Each corresponding UNLOCK decrements the
7076 * variable until it is 0, at which point it actually unlocks the mutex.
7077 * Since the variable is per-thread, initialized to 0, there is no race
7078 * with other threads.
7080 * The single argument is a condition to test for, and if true, to panic.
7081 * Call it with the constant 0 to suppress the check.
7083 * Clang improperly gives warnings for this, if not silenced:
7084 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
7086 # define LOCALE_LOCK_(cond_to_panic_if_already_locked) \
7088 CLANG_DIAG_IGNORE(-Wthread-safety) \
7089 if (LIKELY(PL_locale_mutex_depth <= 0)) { \
7090 UNLESS_PERL_MEM_LOG(DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7091 "%s: %d: locking locale; lock depth=1\n", \
7092 __FILE__, __LINE__)); \
7094 MUTEX_LOCK(&PL_locale_mutex); \
7095 PL_locale_mutex_depth = 1; \
7096 UNLESS_PERL_MEM_LOG(DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7097 "%s: %d: locale locked; lock depth=1\n", \
7098 __FILE__, __LINE__)); \
7102 PL_locale_mutex_depth++; \
7103 UNLESS_PERL_MEM_LOG(DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7104 "%s: %d: avoided locking locale; new lock" \
7105 " depth=%d, but will panic if '%s' is true\n", \
7106 __FILE__, __LINE__, PL_locale_mutex_depth, \
7107 STRINGIFY(cond_to_panic_if_already_locked))); \
7109 if (cond_to_panic_if_already_locked) { \
7110 locale_panic_("Trying to lock locale incompatibly: " \
7111 STRINGIFY(cond_to_panic_if_already_locked)); \
7114 CLANG_DIAG_RESTORE \
7117 # define LOCALE_UNLOCK_ \
7119 if (LIKELY(PL_locale_mutex_depth == 1)) { \
7120 UNLESS_PERL_MEM_LOG(DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7121 "%s: %d: unlocking locale; new lock depth=0\n", \
7122 __FILE__, __LINE__)); \
7124 PL_locale_mutex_depth = 0; \
7125 MUTEX_UNLOCK(&PL_locale_mutex); \
7127 else if (PL_locale_mutex_depth <= 0) { \
7128 Perl_croak_nocontext("panic: %s: %d: attempting to unlock" \
7129 " already unlocked locale; depth was" \
7130 " %d\n", __FILE__, __LINE__, \
7131 PL_locale_mutex_depth); \
7134 PL_locale_mutex_depth--; \
7135 UNLESS_PERL_MEM_LOG(DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7136 "%s: %d: avoided unlocking locale; new lock depth=%d\n",\
7137 __FILE__, __LINE__, PL_locale_mutex_depth)); \
7142 # if defined(USE_THREADS) && ! defined(USE_THREAD_SAFE_LOCALE)
7144 /* By definition, a thread-unsafe locale means we need a critical
7146 # define LOCALE_LOCK LOCALE_LOCK_(0)
7147 # define LOCALE_UNLOCK LOCALE_UNLOCK_
7148 # ifdef USE_LOCALE_NUMERIC
7149 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
7150 LOCALE_LOCK_(cond_to_panic_if_already_locked)
7151 # define LC_NUMERIC_UNLOCK LOCALE_UNLOCK_
7155 # ifdef WIN32_USE_FAKE_OLD_MINGW_LOCALES
7156 /* This function is coerced by this Configure option into cleaning up
7157 * memory that is static to locale.c. So we call it at termination. Doing
7158 * it this way is kludgy but confines having to deal with this
7159 * Configuration to a bare minimum number of places. */
7160 # define LOCALE_TERM_POSIX_2008_ Perl_thread_locale_term(NULL)
7161 # elif ! defined(USE_POSIX_2008_LOCALE)
7162 # define LOCALE_TERM_POSIX_2008_ NOOP
7164 /* We have a locale object holding the 'C' locale for Posix 2008 */
7165 # define LOCALE_TERM_POSIX_2008_ \
7167 if (PL_C_locale_obj) { \
7168 /* Make sure we aren't using the locale \
7169 * space we are about to free */ \
7170 uselocale(LC_GLOBAL_LOCALE); \
7171 freelocale(PL_C_locale_obj); \
7172 PL_C_locale_obj = (locale_t) NULL; \
7177 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex)
7178 # define LOCALE_TERM STMT_START { \
7179 LOCALE_TERM_POSIX_2008_; \
7180 MUTEX_DESTROY(&PL_locale_mutex); \
7184 /* There are some locale-related functions which may need locking only because
7185 * they share some common memory across threads, and hence there is the
7186 * potential for a race in accessing that space. Most are because their return
7187 * points to a global static buffer, but some just use some common space
7188 * internally. All functions accessing a given space need to have a critical
7189 * section to prevent any other thread from accessing it at the same time.
7190 * Ideally, there would be a separate mutex for each such space, so that
7191 * another thread isn't unnecessarily blocked. But, most of them need to be
7192 * locked against the locale changing while accessing that space, and it is not
7193 * expected that any will be called frequently, and the locked interval should
7194 * be short, and modern platforms will have reentrant versions (which don't
7195 * lock) for almost all of them, so khw thinks a single mutex should suffice.
7196 * Having a single mutex facilitates that, avoiding potential deadlock
7199 * This will be a no-op iff the perl is unthreaded. 'gw' stands for 'global
7200 * write', to indicate the caller wants to be able to access memory that isn't
7201 * thread specific, either to write to itself, or to prevent anyone else from
7203 #define gwLOCALE_LOCK LOCALE_LOCK_(0)
7204 #define gwLOCALE_UNLOCK LOCALE_UNLOCK_
7206 /* setlocale() generally returns in a global static buffer, but not on Windows
7207 * when operating in thread-safe mode */
7208 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE)
7209 # define POSIX_SETLOCALE_LOCK \
7211 if (_configthreadlocale(0) == _DISABLE_PER_THREAD_LOCALE) \
7214 # define POSIX_SETLOCALE_UNLOCK \
7216 if (_configthreadlocale(0) == _DISABLE_PER_THREAD_LOCALE) \
7220 # define POSIX_SETLOCALE_LOCK gwLOCALE_LOCK
7221 # define POSIX_SETLOCALE_UNLOCK gwLOCALE_UNLOCK
7224 /* It handles _wsetlocale() as well */
7225 #define WSETLOCALE_LOCK POSIX_SETLOCALE_LOCK
7226 #define WSETLOCALE_UNLOCK POSIX_SETLOCALE_UNLOCK
7228 /* Similar to gwLOCALE_LOCK, there are functions that require both the locale
7229 * and environment to be constant during their execution, and don't change
7230 * either of those things, but do write to some sort of shared global space.
7231 * They require some sort of exclusive lock against similar functions, and a
7232 * read lock on both the locale and environment. However, on systems which
7233 * have per-thread locales, the locale is constant during the execution of
7234 * these functions, and so no locale lock is necssary. For such systems, an
7235 * exclusive ENV lock is necessary and sufficient. On systems where the locale
7236 * could change out from under us, we use an exclusive LOCALE lock to prevent
7237 * that, and a read ENV lock to prevent other threads that have nothing to do
7238 * with locales here from changing the environment. */
7240 # define gwENVr_LOCALEr_LOCK \
7241 STMT_START { LOCALE_LOCK; ENV_READ_LOCK; } STMT_END
7242 # define gwENVr_LOCALEr_UNLOCK \
7243 STMT_START { ENV_READ_UNLOCK; LOCALE_UNLOCK; } STMT_END
7245 # define gwENVr_LOCALEr_LOCK ENV_LOCK
7246 # define gwENVr_LOCALEr_UNLOCK ENV_UNLOCK
7249 /* Now that we have defined gwENVr_LOCALEr_LOCK, we can finish defining
7250 * LOCALE_LOCK, which we kept undefined until here on a thread-safe system
7251 * so that we could use that fact to calculate what gwENVr_LOCALEr_LOCK should
7254 # define LOCALE_LOCK NOOP
7255 # define LOCALE_UNLOCK NOOP
7258 /* On systems that don't have per-thread locales, even though we don't
7259 * think we are changing the locale ourselves, behind the scenes it does
7260 * get changed to whatever the thread's should be, so it has to be an
7261 * exclusive lock. By defining it here with this name, we can, for the
7262 * most part, hide this detail from the rest of the code */
7263 /* Currently, the read lock is an exclusive lock */
7264 #define LOCALE_READ_LOCK LOCALE_LOCK
7265 #define LOCALE_READ_UNLOCK LOCALE_UNLOCK
7268 #ifndef LC_NUMERIC_LOCK
7269 # define LC_NUMERIC_LOCK(cond) NOOP
7270 # define LC_NUMERIC_UNLOCK NOOP
7273 /* These non-reentrant versions use global space */
7274 # define MBLEN_LOCK_ gwLOCALE_LOCK
7275 # define MBLEN_UNLOCK_ gwLOCALE_UNLOCK
7277 # define MBTOWC_LOCK_ gwLOCALE_LOCK
7278 # define MBTOWC_UNLOCK_ gwLOCALE_UNLOCK
7280 # define WCTOMB_LOCK_ gwLOCALE_LOCK
7281 # define WCTOMB_UNLOCK_ gwLOCALE_UNLOCK
7283 /* Whereas the reentrant versions don't (assuming they are called with a
7284 * per-thread buffer; some have the capability of being called with a NULL
7285 * parameter, which defeats the reentrancy) */
7286 # define MBRLEN_LOCK_ NOOP
7287 # define MBRLEN_UNLOCK_ NOOP
7288 # define MBRTOWC_LOCK_ NOOP
7289 # define MBRTOWC_UNLOCK_ NOOP
7290 # define WCRTOMB_LOCK_ NOOP
7291 # define WCRTOMB_UNLOCK_ NOOP
7293 # define LC_COLLATE_LOCK LOCALE_LOCK
7294 # define LC_COLLATE_UNLOCK LOCALE_UNLOCK
7296 # define STRFTIME_LOCK ENV_LOCK
7297 # define STRFTIME_UNLOCK ENV_UNLOCK
7299 #ifdef USE_LOCALE_NUMERIC
7301 /* These macros are for toggling between the underlying locale (UNDERLYING or
7302 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
7303 * locale if the underlying locale is indistinguishable from it in the numeric
7304 * operations used by Perl, namely the decimal point, and even the thousands
7307 =for apidoc_section $locale
7309 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
7311 This macro should be used as a statement. It declares a private variable
7312 (whose name begins with an underscore) that is needed by the other macros in
7313 this section. Failing to include this correctly should lead to a syntax error.
7314 For compatibility with C89 C compilers it should be placed in a block before
7315 any executable statements.
7317 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
7319 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
7320 locale for category C<LC_NUMERIC> to be what perl thinks is the current
7321 underlying locale. (The perl interpreter could be wrong about what the
7322 underlying locale actually is if some C or XS code has called the C library
7323 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
7324 this macro will update perl's records.)
7326 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
7327 declare at compile time a private variable used by this macro. This macro
7328 should be called as a single statement, not an expression, but with an empty
7329 argument list, like this:
7332 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
7334 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
7336 RESTORE_LC_NUMERIC();
7340 The private variable is used to save the current locale state, so
7341 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
7343 On threaded perls not operating with thread-safe functionality, this macro uses
7344 a mutex to force a critical section. Therefore the matching RESTORE should be
7345 close by, and guaranteed to be called.
7347 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
7349 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
7350 This locale category is generally kept set to a locale where the decimal radix
7351 character is a dot, and the separator between groups of digits is empty. This
7352 is because most XS code that reads floating point numbers is expecting them to
7355 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
7356 aware of locale if the call to the XS or C code from the Perl program is
7357 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
7358 instead from outside such scope.
7360 This macro is the start of wrapping the C or XS code; the wrap ending is done
7361 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
7362 the state can be changed that will adversely affect other XS code.
7364 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
7365 declare at compile time a private variable used by this macro. This macro
7366 should be called as a single statement, not an expression, but with an empty
7367 argument list, like this:
7370 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
7372 STORE_LC_NUMERIC_SET_TO_NEEDED();
7374 RESTORE_LC_NUMERIC();
7378 On threaded perls not operating with thread-safe functionality, this macro uses
7379 a mutex to force a critical section. Therefore the matching RESTORE should be
7380 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
7381 for a more contained way to ensure that.
7383 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
7385 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
7386 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
7387 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
7388 cannot have changed since the precalculation.
7390 =for apidoc Am|void|RESTORE_LC_NUMERIC
7392 This is used in conjunction with one of the macros
7393 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
7394 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
7395 C<LC_NUMERIC> state.
7397 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
7398 declare at compile time a private variable used by this macro and the two
7399 C<STORE> ones. This macro should be called as a single statement, not an
7400 expression, but with an empty argument list, like this:
7403 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
7405 RESTORE_LC_NUMERIC();
7409 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
7411 This macro invokes the supplied statement or block within the context
7412 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
7415 WITH_LC_NUMERIC_SET_TO_NEEDED(
7416 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
7422 #ifdef USE_LOCALE_NUMERIC
7423 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
7424 STORE_LC_NUMERIC_SET_TO_NEEDED();
7426 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
7427 #ifdef USE_LOCALE_NUMERIC
7428 RESTORE_LC_NUMERIC();
7432 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
7434 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
7435 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
7436 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
7437 cannot have changed since the precalculation.
7443 /* If the underlying numeric locale has a non-dot decimal point or has a
7444 * non-empty floating point thousands separator, the current locale is instead
7445 * generally kept in the C locale instead of that underlying locale. The
7446 * current status is known by looking at two words. One is non-zero if the
7447 * current numeric locale is the standard C/POSIX one or is indistinguishable
7448 * from C. The other is non-zero if the current locale is the underlying
7449 * locale. Both can be non-zero if, as often happens, the underlying locale is
7450 * C or indistinguishable from it.
7452 * khw believes the reason for the variables instead of the bits in a single
7453 * word is to avoid having to have masking instructions. */
7455 # define NOT_IN_NUMERIC_STANDARD_ (! PL_numeric_standard)
7457 /* We can lock the category to stay in the C locale, making requests to the
7458 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
7460 # define NOT_IN_NUMERIC_UNDERLYING_ \
7461 (! PL_numeric_underlying && PL_numeric_standard < 2)
7463 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
7464 void (*_restore_LC_NUMERIC_function)(pTHX_ const char * const file, \
7465 const line_t line) = NULL
7467 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
7469 bool _in_lc_numeric = (in); \
7471 ( ( _in_lc_numeric && NOT_IN_NUMERIC_UNDERLYING_) \
7472 || (! _in_lc_numeric && NOT_IN_NUMERIC_STANDARD_))); \
7473 if (_in_lc_numeric) { \
7474 if (NOT_IN_NUMERIC_UNDERLYING_) { \
7475 Perl_set_numeric_underlying(aTHX_ __FILE__, __LINE__); \
7476 _restore_LC_NUMERIC_function \
7477 = &Perl_set_numeric_standard; \
7481 if (NOT_IN_NUMERIC_STANDARD_) { \
7482 Perl_set_numeric_standard(aTHX_ __FILE__, __LINE__); \
7483 _restore_LC_NUMERIC_function \
7484 = &Perl_set_numeric_underlying; \
7489 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
7490 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
7492 # define RESTORE_LC_NUMERIC() \
7494 if (_restore_LC_NUMERIC_function) { \
7495 _restore_LC_NUMERIC_function(aTHX_ __FILE__, __LINE__); \
7497 LC_NUMERIC_UNLOCK; \
7500 /* The next two macros should be rarely used, and only after being sure that
7501 * this is what is needed */
7502 # define SET_NUMERIC_STANDARD() \
7504 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7505 "%s: %d: lc_numeric standard=%d\n", \
7506 __FILE__, __LINE__, PL_numeric_standard)); \
7507 if (UNLIKELY(NOT_IN_NUMERIC_STANDARD_)) { \
7508 Perl_set_numeric_standard(aTHX_ __FILE__, __LINE__); \
7510 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7511 "%s: %d: lc_numeric standard=%d\n", \
7512 __FILE__, __LINE__, PL_numeric_standard)); \
7515 # define SET_NUMERIC_UNDERLYING() \
7517 /*assert(PL_locale_mutex_depth > 0);*/ \
7518 if (NOT_IN_NUMERIC_UNDERLYING_) { \
7519 Perl_set_numeric_underlying(aTHX_ __FILE__, __LINE__); \
7523 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
7524 * the RESTORE_foo ones called to switch back, but only if need be */
7525 # define STORE_LC_NUMERIC_SET_STANDARD() \
7527 LC_NUMERIC_LOCK(NOT_IN_NUMERIC_STANDARD_); \
7528 if (NOT_IN_NUMERIC_STANDARD_) { \
7529 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
7530 Perl_set_numeric_standard(aTHX_ __FILE__, __LINE__); \
7534 /* Rarely, we want to change to the underlying locale even outside of 'use
7535 * locale'. This is principally in the POSIX:: functions */
7536 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
7538 LC_NUMERIC_LOCK(NOT_IN_NUMERIC_UNDERLYING_); \
7539 if (NOT_IN_NUMERIC_UNDERLYING_) { \
7540 Perl_set_numeric_underlying(aTHX_ __FILE__, __LINE__); \
7541 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
7545 /* Lock/unlock changes to LC_NUMERIC. This needs to be recursively callable.
7546 * The highest level caller is responsible for making sure that LC_NUMERIC is
7547 * set to a locale with a dot radix character. These deliberately don't check
7548 * for the internal state being so, as they can be called from code that is not
7549 * party to the internal conventions, namely 'version' (vutil.c).
7550 * PL_numeric_standard changing doesn't affect anything about what locale is in
7551 * effect, etc. [perl #128207] */
7552 # define DISABLE_LC_NUMERIC_CHANGES() \
7554 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7555 "%s: %d: lc_numeric_standard now locked to depth %d\n", \
7556 __FILE__, __LINE__, PL_numeric_standard)); \
7557 PL_numeric_standard++; \
7560 # define REENABLE_LC_NUMERIC_CHANGES() \
7562 if (PL_numeric_standard > 1) { \
7563 PL_numeric_standard--; \
7568 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7569 "%s: %d: ", __FILE__, __LINE__); \
7570 if (PL_numeric_standard <= 1) \
7571 PerlIO_printf(Perl_debug_log, \
7572 "lc_numeric_standard now unlocked\n");\
7573 else PerlIO_printf(Perl_debug_log, \
7574 "lc_numeric_standard lock decremented to depth %d\n", \
7575 PL_numeric_standard););\
7578 /* Essentially synonyms for the above. The LOCK asserts at the top level that
7579 * we are in a locale equivalent to C. By including the top level, this can be
7580 * recursively called from chains which include DISABLE_LC_NUMERIC_CHANGES().
7582 # define LOCK_LC_NUMERIC_STANDARD() \
7584 assert(PL_numeric_standard > 0 || PL_numeric_standard); \
7585 DISABLE_LC_NUMERIC_CHANGES(); \
7587 # define UNLOCK_LC_NUMERIC_STANDARD() REENABLE_LC_NUMERIC_CHANGES()
7589 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
7591 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
7592 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
7594 RESTORE_LC_NUMERIC(); \
7597 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
7598 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
7600 #else /* !USE_LOCALE_NUMERIC */
7602 # define SET_NUMERIC_STANDARD()
7603 # define SET_NUMERIC_UNDERLYING()
7604 # define IS_NUMERIC_RADIX(a, b) (0)
7605 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
7606 # define STORE_LC_NUMERIC_SET_STANDARD()
7607 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
7608 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
7609 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
7610 # define RESTORE_LC_NUMERIC()
7611 # define LOCK_LC_NUMERIC_STANDARD()
7612 # define UNLOCK_LC_NUMERIC_STANDARD()
7613 # define DISABLE_LC_NUMERIC_CHANGES()
7614 # define REENABLE_LC_NUMERIC_CHANGES()
7615 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
7616 STMT_START { block; } STMT_END
7617 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
7618 STMT_START { block; } STMT_END
7620 #endif /* !USE_LOCALE_NUMERIC */
7622 #ifdef USE_LOCALE_THREADS
7623 # define ENV_LOCK PERL_WRITE_LOCK(&PL_env_mutex)
7624 # define ENV_UNLOCK PERL_WRITE_UNLOCK(&PL_env_mutex)
7625 # define ENV_READ_LOCK PERL_READ_LOCK(&PL_env_mutex)
7626 # define ENV_READ_UNLOCK PERL_READ_UNLOCK(&PL_env_mutex)
7627 # define ENV_INIT PERL_RW_MUTEX_INIT(&PL_env_mutex)
7628 # define ENV_TERM PERL_RW_MUTEX_DESTROY(&PL_env_mutex)
7630 /* On platforms where the static buffer contained in getenv() is per-thread
7631 * rather than process-wide, another thread executing a getenv() at the same
7632 * time won't destroy ours before we have copied the result safely away and
7633 * unlocked the mutex. On such platforms (which is most), we can have many
7634 * readers of the environment at the same time. */
7635 # ifdef GETENV_PRESERVES_OTHER_THREAD
7636 # define GETENV_LOCK ENV_READ_LOCK
7637 # define GETENV_UNLOCK ENV_READ_UNLOCK
7639 /* If, on the other hand, another thread could zap our getenv() return, we
7640 * need to keep them from executing until we are done */
7641 # define GETENV_LOCK ENV_LOCK
7642 # define GETENV_UNLOCK ENV_UNLOCK
7645 # define ENV_LOCK NOOP
7646 # define ENV_UNLOCK NOOP
7647 # define ENV_READ_LOCK NOOP
7648 # define ENV_READ_UNLOCK NOOP
7649 # define ENV_INIT NOOP
7650 # define ENV_TERM NOOP
7651 # define GETENV_LOCK NOOP
7652 # define GETENV_UNLOCK NOOP
7655 /* Some critical sections need to lock both the locale and the environment from
7656 * changing, while allowing for any number of readers. To avoid deadlock, this
7657 * is always done in the same order. These should always be invoked, like all
7658 * locks really, at such a low level that its just a libc call that is wrapped,
7659 * so as to prevent recursive calls which could deadlock. */
7660 #define ENVr_LOCALEr_LOCK \
7661 STMT_START { LOCALE_READ_LOCK; ENV_READ_LOCK; } STMT_END
7662 #define ENVr_LOCALEr_UNLOCK \
7663 STMT_START { ENV_READ_UNLOCK; LOCALE_READ_UNLOCK; } STMT_END
7665 /* These time-related functions all requre that the environment and locale
7666 * don't change while they are executing (at least in glibc; this appears to be
7667 * contrary to the POSIX standard). tzset() writes global variables, so
7668 * always needs to have write locking. ctime, localtime, mktime, and strftime
7669 * effectively call it, so they too need exclusive access. The rest need to
7670 * have exclusive locking as well so that they can copy the contents of the
7671 * returned static buffer before releasing the lock. That leaves asctime and
7672 * gmtime. There may be reentrant versions of these available on the platform
7673 * which don't require write locking.
7675 #ifdef PERL_REENTR_USING_ASCTIME_R
7676 # define ASCTIME_LOCK ENVr_LOCALEr_LOCK
7677 # define ASCTIME_UNLOCK ENVr_LOCALEr_UNLOCK
7679 # define ASCTIME_LOCK gwENVr_LOCALEr_LOCK
7680 # define ASCTIME_UNLOCK gwENVr_LOCALEr_UNLOCK
7683 #define CTIME_LOCK gwENVr_LOCALEr_LOCK
7684 #define CTIME_UNLOCK gwENVr_LOCALEr_UNLOCK
7686 #ifdef PERL_REENTR_USING_GMTIME_R
7687 # define GMTIME_LOCK ENVr_LOCALEr_LOCK
7688 # define GMTIME_UNLOCK ENVr_LOCALEr_UNLOCK
7690 # define GMTIME_LOCK gwENVr_LOCALEr_LOCK
7691 # define GMTIME_UNLOCK gwENVr_LOCALEr_UNLOCK
7694 #define LOCALTIME_LOCK gwENVr_LOCALEr_LOCK
7695 #define LOCALTIME_UNLOCK gwENVr_LOCALEr_UNLOCK
7696 #define MKTIME_LOCK gwENVr_LOCALEr_LOCK
7697 #define MKTIME_UNLOCK gwENVr_LOCALEr_UNLOCK
7698 #define TZSET_LOCK gwENVr_LOCALEr_LOCK
7699 #define TZSET_UNLOCK gwENVr_LOCALEr_UNLOCK
7701 /* Similiarly, these functions need a constant environment and/or locale. And
7702 * some have a buffer that is shared with another thread executing the same or
7703 * a related call. A mutex could be created for each class, but for now, share
7704 * the ENV mutex with everything, as none probably gets called so much that
7705 * performance would suffer by a thread being locked out by another thread that
7706 * could have used a different mutex.
7708 * But, create a different macro name just to indicate the ones that don't
7709 * actually depend on the environment, but are using its mutex for want of a
7711 #define gwLOCALEr_LOCK gwENVr_LOCALEr_LOCK
7712 #define gwLOCALEr_UNLOCK gwENVr_LOCALEr_UNLOCK
7714 #ifdef PERL_REENTR_USING_GETHOSTBYADDR_R
7715 # define GETHOSTBYADDR_LOCK ENVr_LOCALEr_LOCK
7716 # define GETHOSTBYADDR_UNLOCK ENVr_LOCALEr_UNLOCK
7718 # define GETHOSTBYADDR_LOCK gwENVr_LOCALEr_LOCK
7719 # define GETHOSTBYADDR_UNLOCK gwENVr_LOCALEr_UNLOCK
7721 #ifdef PERL_REENTR_USING_GETHOSTBYNAME_R
7722 # define GETHOSTBYNAME_LOCK ENVr_LOCALEr_LOCK
7723 # define GETHOSTBYNAME_UNLOCK ENVr_LOCALEr_UNLOCK
7725 # define GETHOSTBYNAME_LOCK gwENVr_LOCALEr_LOCK
7726 # define GETHOSTBYNAME_UNLOCK gwENVr_LOCALEr_UNLOCK
7728 #ifdef PERL_REENTR_USING_GETNETBYADDR_R
7729 # define GETNETBYADDR_LOCK LOCALE_READ_LOCK
7730 # define GETNETBYADDR_UNLOCK LOCALE_READ_UNLOCK
7732 # define GETNETBYADDR_LOCK gwLOCALEr_LOCK
7733 # define GETNETBYADDR_UNLOCK gwLOCALEr_UNLOCK
7735 #ifdef PERL_REENTR_USING_GETNETBYNAME_R
7736 # define GETNETBYNAME_LOCK LOCALE_READ_LOCK
7737 # define GETNETBYNAME_UNLOCK LOCALE_READ_UNLOCK
7739 # define GETNETBYNAME_LOCK gwLOCALEr_LOCK
7740 # define GETNETBYNAME_UNLOCK gwLOCALEr_UNLOCK
7742 #ifdef PERL_REENTR_USING_GETPROTOBYNAME_R
7743 # define GETPROTOBYNAME_LOCK LOCALE_READ_LOCK
7744 # define GETPROTOBYNAME_UNLOCK LOCALE_READ_UNLOCK
7746 # define GETPROTOBYNAME_LOCK gwLOCALEr_LOCK
7747 # define GETPROTOBYNAME_UNLOCK gwLOCALEr_UNLOCK
7749 #ifdef PERL_REENTR_USING_GETPROTOBYNUMBER_R
7750 # define GETPROTOBYNUMBER_LOCK LOCALE_READ_LOCK
7751 # define GETPROTOBYNUMBER_UNLOCK LOCALE_READ_UNLOCK
7753 # define GETPROTOBYNUMBER_LOCK gwLOCALEr_LOCK
7754 # define GETPROTOBYNUMBER_UNLOCK gwLOCALEr_UNLOCK
7756 #ifdef PERL_REENTR_USING_GETPROTOENT_R
7757 # define GETPROTOENT_LOCK LOCALE_READ_LOCK
7758 # define GETPROTOENT_UNLOCK LOCALE_READ_UNLOCK
7760 # define GETPROTOENT_LOCK gwLOCALEr_LOCK
7761 # define GETPROTOENT_UNLOCK gwLOCALEr_UNLOCK
7763 #ifdef PERL_REENTR_USING_GETPWNAM_R
7764 # define GETPWNAM_LOCK LOCALE_READ_LOCK
7765 # define GETPWNAM_UNLOCK LOCALE_READ_UNLOCK
7767 # define GETPWNAM_LOCK gwLOCALEr_LOCK
7768 # define GETPWNAM_UNLOCK gwLOCALEr_UNLOCK
7770 #ifdef PERL_REENTR_USING_GETPWUID_R
7771 # define GETPWUID_LOCK LOCALE_READ_LOCK
7772 # define GETPWUID_UNLOCK LOCALE_READ_UNLOCK
7774 # define GETPWUID_LOCK gwLOCALEr_LOCK
7775 # define GETPWUID_UNLOCK gwLOCALEr_UNLOCK
7777 #ifdef PERL_REENTR_USING_GETSERVBYNAME_R
7778 # define GETSERVBYNAME_LOCK LOCALE_READ_LOCK
7779 # define GETSERVBYNAME_UNLOCK LOCALE_READ_UNLOCK
7781 # define GETSERVBYNAME_LOCK gwLOCALEr_LOCK
7782 # define GETSERVBYNAME_UNLOCK gwLOCALEr_UNLOCK
7784 #ifdef PERL_REENTR_USING_GETSERVBYPORT_R
7785 # define GETSERVBYPORT_LOCK LOCALE_READ_LOCK
7786 # define GETSERVBYPORT_UNLOCK LOCALE_READ_UNLOCK
7788 # define GETSERVBYPORT_LOCK gwLOCALEr_LOCK
7789 # define GETSERVBYPORT_UNLOCK gwLOCALEr_UNLOCK
7791 #ifdef PERL_REENTR_USING_GETSERVENT_R
7792 # define GETSERVENT_LOCK LOCALE_READ_LOCK
7793 # define GETSERVENT_UNLOCK LOCALE_READ_UNLOCK
7795 # define GETSERVENT_LOCK gwLOCALEr_LOCK
7796 # define GETSERVENT_UNLOCK gwLOCALEr_UNLOCK
7798 #ifdef PERL_REENTR_USING_GETSPNAM_R
7799 # define GETSPNAM_LOCK LOCALE_READ_LOCK
7800 # define GETSPNAM_UNLOCK LOCALE_READ_UNLOCK
7802 # define GETSPNAM_LOCK gwLOCALEr_LOCK
7803 # define GETSPNAM_UNLOCK gwLOCALEr_UNLOCK
7806 #define STRFMON_LOCK LC_MONETARY_LOCK
7807 #define STRFMON_UNLOCK LC_MONETARY_UNLOCK
7809 /* End of locale/env synchronization */
7811 #ifndef PERL_NO_INLINE_FUNCTIONS
7812 /* Static inline funcs that depend on includes and declarations above.
7813 Some of these reference functions in the perl object files, and some
7814 compilers aren't smart enough to eliminate unused static inline
7815 functions, so including this file in source code can cause link errors
7816 even if the source code uses none of the functions. Hence including these
7817 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
7818 (obviously) result in unworkable XS code, but allows simple probing code
7819 to continue to work, because it permits tests to include the perl headers
7820 for definitions without creating a link dependency on the perl library
7821 (which may not exist yet).
7826 # include "perlstatic.h"
7827 # include "inline.h"
7828 # include "sv_inline.h"
7836 =for apidoc_section $numeric
7838 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
7840 This is a synonym for L</my_strtod>.
7842 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
7844 Platform and configuration independent C<strtol>. This expands to the
7845 appropriate C<strotol>-like function based on the platform and F<Configure>
7846 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
7849 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
7851 Platform and configuration independent C<strtoul>. This expands to the
7852 appropriate C<strotoul>-like function based on the platform and F<Configure>
7853 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
7860 #define Strtod my_strtod
7862 #if defined(HAS_STRTOD) \
7863 || defined(USE_QUADMATH) \
7864 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
7865 && defined(USE_LONG_DOUBLE))
7866 # define Perl_strtod Strtod
7869 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
7870 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7872 # define strtoll __strtoll /* secret handshake */
7874 # if defined(WIN64) && defined(_MSC_VER)
7875 # define strtoll _strtoi64 /* secret handshake */
7877 # if !defined(Strtol) && defined(HAS_STRTOLL)
7878 # define Strtol strtoll
7880 # if !defined(Strtol) && defined(HAS_STRTOQ)
7881 # define Strtol strtoq
7883 /* is there atoq() anywhere? */
7885 #if !defined(Strtol) && defined(HAS_STRTOL)
7886 # define Strtol strtol
7889 /* It would be more fashionable to use Strtol() to define atol()
7890 * (as is done for Atoul(), see below) but for backward compatibility
7891 * we just assume atol(). */
7892 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
7893 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7895 # define atoll _atoi64 /* secret handshake */
7903 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
7904 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7906 # define strtoull __strtoull /* secret handshake */
7908 # if defined(WIN64) && defined(_MSC_VER)
7909 # define strtoull _strtoui64 /* secret handshake */
7911 # if !defined(Strtoul) && defined(HAS_STRTOULL)
7912 # define Strtoul strtoull
7914 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
7915 # define Strtoul strtouq
7917 /* is there atouq() anywhere? */
7919 #if !defined(Strtoul) && defined(HAS_STRTOUL)
7920 # define Strtoul strtoul
7922 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
7923 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
7926 # define Atoul(s) Strtoul(s, NULL, 10)
7929 #define grok_bin(s,lp,fp,rp) \
7930 grok_bin_oct_hex(s, lp, fp, rp, 1, CC_BINDIGIT_, 'b')
7931 #define grok_oct(s,lp,fp,rp) \
7932 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
7933 grok_bin_oct_hex(s, lp, fp, rp, 3, CC_OCTDIGIT_, '\0'))
7934 #define grok_hex(s,lp,fp,rp) \
7935 grok_bin_oct_hex(s, lp, fp, rp, 4, CC_XDIGIT_, 'x')
7937 #ifndef PERL_SCRIPT_MODE
7938 #define PERL_SCRIPT_MODE "r"
7941 /* not used. Kept as a NOOP for backcompat */
7942 #define PERL_STACK_OVERFLOW_CHECK() NOOP
7945 * Some nonpreemptive operating systems find it convenient to
7946 * check for asynchronous conditions after each op execution.
7947 * Keep this check simple, or it may slow down execution
7951 #ifndef PERL_ASYNC_CHECK
7952 #define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
7956 * On some operating systems, a memory allocation may succeed,
7957 * but put the process too close to the system's comfort limit.
7958 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
7961 #ifndef PERL_ALLOC_CHECK
7962 #define PERL_ALLOC_CHECK(p) NOOP
7966 # include <sys/ipc.h>
7967 # include <sys/sem.h>
7968 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
7971 struct semid_ds *buf;
7972 unsigned short *array;
7975 # ifdef USE_SEMCTL_SEMUN
7976 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
7977 union gccbug_semun {
7979 struct semid_ds *buf;
7980 unsigned short *array;
7983 # define semun gccbug_semun
7985 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
7986 # elif defined(USE_SEMCTL_SEMID_DS)
7987 # ifdef EXTRA_F_IN_SEMUN_BUF
7988 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
7990 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
7996 * Boilerplate macros for initializing and accessing interpreter-local
7997 * data from C. All statics in extensions should be reworked to use
7998 * this, if you want to make the extension thread-safe. See
7999 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
8000 * and perlxs.pod for more.
8002 * Code that uses these macros is responsible for the following:
8003 * 1. #define MY_CXT_KEY to a unique string, e.g.
8004 * "DynaLoader::_guts" XS_VERSION
8005 * XXX in the current implementation, this string is ignored.
8006 * 2. Declare a typedef named my_cxt_t that is a structure that contains
8007 * all the data that needs to be interpreter-local that perl controls. This
8008 * doesn't include things that libc controls, such as the uselocale object
8009 * in Configurations that use it.
8010 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
8011 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
8012 * (typically put in the BOOT: section).
8013 * 5. Use the members of the my_cxt_t structure everywhere as
8015 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
8019 #if defined(MULTIPLICITY)
8021 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
8022 * right after the definition (i.e. at file scope). The non-threads
8023 * case below uses it to declare the data as static. */
8024 # define START_MY_CXT static int my_cxt_index = -1;
8025 # define MY_CXT_INDEX my_cxt_index
8026 # define MY_CXT_INIT_ARG &my_cxt_index
8028 /* Creates and zeroes the per-interpreter data.
8029 * (We allocate my_cxtp in a Perl SV so that it will be released when
8030 * the interpreter goes away.) */
8031 # define MY_CXT_INIT \
8032 my_cxt_t *my_cxtp = \
8033 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
8034 PERL_UNUSED_VAR(my_cxtp)
8035 # define MY_CXT_INIT_INTERP(my_perl) \
8036 my_cxt_t *my_cxtp = \
8037 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
8038 PERL_UNUSED_VAR(my_cxtp)
8040 /* This declaration should be used within all functions that use the
8041 * interpreter-local data. */
8043 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
8044 # define dMY_CXT_INTERP(my_perl) \
8045 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
8047 /* Clones the per-interpreter data. */
8048 # define MY_CXT_CLONE \
8049 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
8050 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
8051 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
8052 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
8056 /* This macro must be used to access members of the my_cxt_t structure.
8057 * e.g. MY_CXT.some_data */
8058 # define MY_CXT (*my_cxtp)
8060 /* Judicious use of these macros can reduce the number of times dMY_CXT
8061 * is used. Use is similar to pTHX, aTHX etc. */
8062 # define pMY_CXT my_cxt_t *my_cxtp
8063 # define pMY_CXT_ pMY_CXT,
8064 # define _pMY_CXT ,pMY_CXT
8065 # define aMY_CXT my_cxtp
8066 # define aMY_CXT_ aMY_CXT,
8067 # define _aMY_CXT ,aMY_CXT
8069 #else /* MULTIPLICITY */
8070 # define START_MY_CXT static my_cxt_t my_cxt;
8071 # define dMY_CXT dNOOP
8072 # define dMY_CXT_INTERP(my_perl) dNOOP
8073 # define MY_CXT_INIT NOOP
8074 # define MY_CXT_CLONE NOOP
8075 # define MY_CXT my_cxt
8077 # define pMY_CXT void
8084 #endif /* !defined(MULTIPLICITY) */
8095 # undef FD_CLOEXEC /* a lie in AmigaOS */
8099 # include <sys/file.h>
8102 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
8103 EXTERN_C int flock(int fd, int op);
8107 /* Assume UNIX defaults */
8108 # define O_RDONLY 0000
8109 # define O_WRONLY 0001
8110 # define O_RDWR 0002
8111 # define O_CREAT 0100
8122 #if O_TEXT != O_BINARY
8123 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
8124 * that is, you are somehow DOSish. */
8125 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
8126 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
8127 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
8128 /* VOS has O_TEXT != O_BINARY, and they have effect,
8129 * but VOS always uses LF, never CRLF. */
8130 /* If you have O_TEXT different from your O_BINARY but you still are
8131 * not a CRLF shop. */
8132 # undef PERLIO_USING_CRLF
8134 /* If you really are DOSish. */
8135 # define PERLIO_USING_CRLF 1
8140 # include <libutil.h> /* setproctitle() in some FreeBSDs */
8143 #ifndef EXEC_ARGV_CAST
8144 #define EXEC_ARGV_CAST(x) (char **)x
8147 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
8148 int). value returned in pointed-
8150 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
8151 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
8152 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
8153 #define IS_NUMBER_INFINITY 0x10 /* this is big */
8154 #define IS_NUMBER_NAN 0x20 /* this is not */
8155 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
8158 =for apidoc_section $numeric
8160 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
8162 A synonym for L</grok_numeric_radix>
8166 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
8168 /* Number scan flags. All are used for input, the ones used for output are so
8170 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
8171 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
8173 /* grok_??? input: ignored; output: found overflow */
8174 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
8176 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
8177 * this isn't set on output if one is found. Instead, see
8178 * PERL_SCAN_NOTIFY_ILLDIGIT. */
8179 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
8181 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
8182 and set IS_NUMBER_TRAILING */
8184 /* These are considered experimental, so not exposed publicly */
8185 #if defined(PERL_CORE) || defined(PERL_EXT)
8186 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
8187 * output: found such a number */
8188 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
8190 /* If this is set on input, and no illegal digit is found, it will be cleared
8191 * on output; otherwise unchanged */
8192 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
8194 /* Don't warn on overflow; output flag still set */
8195 # define PERL_SCAN_SILENT_OVERFLOW 0x80
8197 /* Forbid a leading underscore, which the other one doesn't */
8198 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
8202 /* to let user control profiling */
8203 #ifdef PERL_GPROF_CONTROL
8204 extern void moncontrol(int);
8205 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
8207 #define PERL_GPROF_MONCONTROL(x)
8210 /* ISO 6429 NEL - C1 control NExt Line */
8211 /* See https://www.unicode.org/unicode/reports/tr13/ */
8212 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
8214 #ifndef PIPESOCK_MODE
8215 # define PIPESOCK_MODE
8218 #ifndef SOCKET_OPEN_MODE
8219 # define SOCKET_OPEN_MODE PIPESOCK_MODE
8222 #ifndef PIPE_OPEN_MODE
8223 # define PIPE_OPEN_MODE PIPESOCK_MODE
8226 #define PERL_MAGIC_UTF8_CACHESIZE 2
8230 #define PERL_UNICODE_STDIN_FLAG 0x0001
8231 #define PERL_UNICODE_STDOUT_FLAG 0x0002
8232 #define PERL_UNICODE_STDERR_FLAG 0x0004
8233 #define PERL_UNICODE_IN_FLAG 0x0008
8234 #define PERL_UNICODE_OUT_FLAG 0x0010
8235 #define PERL_UNICODE_ARGV_FLAG 0x0020
8236 #define PERL_UNICODE_LOCALE_FLAG 0x0040
8237 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
8238 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
8240 #define PERL_UNICODE_STD_FLAG \
8241 (PERL_UNICODE_STDIN_FLAG | \
8242 PERL_UNICODE_STDOUT_FLAG | \
8243 PERL_UNICODE_STDERR_FLAG)
8245 #define PERL_UNICODE_INOUT_FLAG \
8246 (PERL_UNICODE_IN_FLAG | \
8247 PERL_UNICODE_OUT_FLAG)
8249 #define PERL_UNICODE_DEFAULT_FLAGS \
8250 (PERL_UNICODE_STD_FLAG | \
8251 PERL_UNICODE_INOUT_FLAG | \
8252 PERL_UNICODE_LOCALE_FLAG)
8254 #define PERL_UNICODE_ALL_FLAGS 0x01ff
8256 #define PERL_UNICODE_STDIN 'I'
8257 #define PERL_UNICODE_STDOUT 'O'
8258 #define PERL_UNICODE_STDERR 'E'
8259 #define PERL_UNICODE_STD 'S'
8260 #define PERL_UNICODE_IN 'i'
8261 #define PERL_UNICODE_OUT 'o'
8262 #define PERL_UNICODE_INOUT 'D'
8263 #define PERL_UNICODE_ARGV 'A'
8264 #define PERL_UNICODE_LOCALE 'L'
8265 #define PERL_UNICODE_WIDESYSCALLS 'W'
8266 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
8271 =for apidoc_section $signals
8272 =for apidoc Amn|U32|PERL_SIGNALS_UNSAFE_FLAG
8273 If this bit in C<PL_signals> is set, the system is uing the pre-Perl 5.8
8274 unsafe signals. See L<perlrun/PERL_SIGNALS> and L<perlipc/Deferred Signals
8279 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
8282 =for apidoc_section $numeric
8284 =for apidoc Am|int|PERL_ABS|int x
8286 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
8287 integers, but it works for any type.) Use instead of these, since the C
8288 library ones force their argument to be what it is expecting, potentially
8289 leading to disaster. But also beware that this evaluates its argument twice,
8295 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
8297 #if defined(__DECC) && defined(__osf__)
8298 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
8301 #define do_open(g, n, l, a, rm, rp, sf) \
8302 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
8303 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
8304 # define do_exec(cmd) do_exec3(cmd,0,0)
8307 # define do_aexec Perl_do_aexec
8309 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
8314 =for apidoc_section $utility
8316 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
8318 Same as L</is_safe_syscall>.
8322 Allows one ending \0
8324 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
8326 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
8328 #if defined(OEMVS) || defined(__amigaos4__)
8329 #define NO_ENV_ARRAY_IN_MAIN
8332 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
8333 * are here so that they are available throughout the core
8334 * NOTE that even though some are for _escape and some for _pretty
8335 * there must not be any clashes as the flags from _pretty are
8336 * passed straight through to _escape.
8339 #define PERL_PV_ESCAPE_QUOTE 0x000001
8340 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
8342 #define PERL_PV_PRETTY_ELLIPSES 0x000002
8343 #define PERL_PV_PRETTY_LTGT 0x000004
8344 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
8346 #define PERL_PV_ESCAPE_UNI 0x000100
8347 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
8348 #define PERL_PV_ESCAPE_NONASCII 0x000400
8349 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
8351 #define PERL_PV_ESCAPE_ALL 0x001000
8352 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
8353 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
8354 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
8355 #define PERL_PV_ESCAPE_RE 0x008000
8357 /* Escape PV with hex, except leave NULs as octal: */
8358 #define PERL_PV_ESCAPE_DWIM 0x010000
8360 /* Escape PV with all hex, including NUL. */
8361 #define PERL_PV_ESCAPE_DWIM_ALL_HEX 0x020000
8363 /* Do not escape word characters, alters meaning of other flags */
8364 #define PERL_PV_ESCAPE_NON_WC 0x040000
8365 #define PERL_PV_ESCAPE_TRUNC_MIDDLE 0x080000
8367 #define PERL_PV_PRETTY_QUOTEDPREFIX ( \
8368 PERL_PV_PRETTY_ELLIPSES | \
8369 PERL_PV_PRETTY_QUOTE | \
8370 PERL_PV_ESCAPE_NONASCII | \
8371 PERL_PV_ESCAPE_NON_WC | \
8372 PERL_PV_ESCAPE_TRUNC_MIDDLE | \
8376 /* used by pv_display in dump.c*/
8377 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
8378 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
8380 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
8381 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
8382 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
8383 # define DOUBLE_IS_VAX_FLOAT
8385 # define DOUBLE_IS_IEEE_FORMAT
8388 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
8389 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
8390 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8391 # define DOUBLE_LITTLE_ENDIAN
8394 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
8395 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
8396 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8397 # define DOUBLE_BIG_ENDIAN
8400 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
8401 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8402 # define DOUBLE_MIX_ENDIAN
8405 /* The VAX fp formats are neither consistently little-endian nor
8406 * big-endian, and neither are they really IEEE-mixed endian like
8407 * the mixed-endian ARM IEEE formats (with swapped bytes).
8408 * Ultimately, the VAX format came from the PDP-11.
8410 * The ordering of the parts in VAX floats is quite vexing.
8411 * In the below the fraction_n are the mantissa bits.
8413 * The fraction_1 is the most significant (numbering as by DEC/Digital),
8414 * while the rightmost bit in each fraction is the least significant:
8415 * in other words, big-endian bit order within the fractions.
8417 * The fraction segments themselves would be big-endianly, except that
8418 * within 32 bit segments the less significant half comes first, the more
8419 * significant after, except that in the format H (used for long doubles)
8420 * the first fraction segment is alone, because the exponent is wider.
8421 * This means for example that both the most and the least significant
8422 * bits can be in the middle of the floats, not at either end.
8425 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
8426 * http://www.quadibloc.com/comp/cp0201.htm
8427 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
8428 * (somebody at HP should be fired for the URLs)
8430 * F fraction_2:16 sign:1 exp:8 fraction_1:7
8431 * (exponent bias 128, hidden first one-bit)
8433 * D fraction_2:16 sign:1 exp:8 fraction_1:7
8434 * fraction_4:16 fraction_3:16
8435 * (exponent bias 128, hidden first one-bit)
8437 * G fraction_2:16 sign:1 exp:11 fraction_1:4
8438 * fraction_4:16 fraction_3:16
8439 * (exponent bias 1024, hidden first one-bit)
8441 * H fraction_1:16 sign:1 exp:15
8442 * fraction_3:16 fraction_2:16
8443 * fraction_5:16 fraction_4:16
8444 * fraction_7:16 fraction_6:16
8445 * (exponent bias 16384, hidden first one-bit)
8446 * (available only on VAX, and only on Fortran?)
8448 * The formats S, T and X are available on the Alpha (and Itanium,
8449 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
8450 * binary32, binary64, and binary128 (commonly: float, double, long double).
8452 * S sign:1 exp:8 mantissa:23
8453 * (exponent bias 127, hidden first one-bit)
8455 * T sign:1 exp:11 mantissa:52
8456 * (exponent bias 1022, hidden first one-bit)
8458 * X sign:1 exp:15 mantissa:112
8459 * (exponent bias 16382, hidden first one-bit)
8463 #ifdef DOUBLE_IS_VAX_FLOAT
8464 # define DOUBLE_VAX_ENDIAN
8467 #ifdef DOUBLE_IS_IEEE_FORMAT
8468 /* All the basic IEEE formats have the implicit bit,
8469 * except for the x86 80-bit extended formats, which will undef this.
8470 * Also note that the IEEE 754 subnormals (formerly known as denormals)
8471 * do not have the implicit bit of one. */
8472 # define NV_IMPLICIT_BIT
8475 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
8477 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
8478 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
8479 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8480 # define LONGDOUBLE_LITTLE_ENDIAN
8483 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
8484 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
8485 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8486 # define LONGDOUBLE_BIG_ENDIAN
8489 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
8490 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8491 # define LONGDOUBLE_MIX_ENDIAN
8494 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
8495 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8496 # define LONGDOUBLE_X86_80_BIT
8497 # ifdef USE_LONG_DOUBLE
8498 # undef NV_IMPLICIT_BIT
8499 # define NV_X86_80_BIT
8503 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
8504 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
8505 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
8506 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8507 # define LONGDOUBLE_DOUBLEDOUBLE
8510 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
8511 # define LONGDOUBLE_VAX_ENDIAN
8514 #endif /* LONG_DOUBLEKIND */
8516 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
8517 # if defined(DOUBLE_LITTLE_ENDIAN)
8518 # define NV_LITTLE_ENDIAN
8519 # elif defined(DOUBLE_BIG_ENDIAN)
8520 # define NV_BIG_ENDIAN
8521 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
8522 # define NV_MIX_ENDIAN
8524 #elif NVSIZE == DOUBLESIZE
8525 # ifdef DOUBLE_LITTLE_ENDIAN
8526 # define NV_LITTLE_ENDIAN
8528 # ifdef DOUBLE_BIG_ENDIAN
8529 # define NV_BIG_ENDIAN
8531 # ifdef DOUBLE_MIX_ENDIAN
8532 # define NV_MIX_ENDIAN
8534 # ifdef DOUBLE_VAX_ENDIAN
8535 # define NV_VAX_ENDIAN
8537 #elif NVSIZE == LONG_DOUBLESIZE
8538 # ifdef LONGDOUBLE_LITTLE_ENDIAN
8539 # define NV_LITTLE_ENDIAN
8541 # ifdef LONGDOUBLE_BIG_ENDIAN
8542 # define NV_BIG_ENDIAN
8544 # ifdef LONGDOUBLE_MIX_ENDIAN
8545 # define NV_MIX_ENDIAN
8547 # ifdef LONGDOUBLE_VAX_ENDIAN
8548 # define NV_VAX_ENDIAN
8552 /* We have somehow managed not to define the denormal/subnormal
8555 * This may happen if the compiler doesn't expose the C99 math like
8556 * the fpclassify() without some special switches. Perl tries to
8557 * stay C89, so for example -std=c99 is not an option.
8559 * The Perl_isinf() and Perl_isnan() should have been defined even if
8560 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
8561 * from the C89 DBL_MIN or moral equivalent. */
8562 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
8563 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
8566 /* This is not a great fallback: subnormals tests will fail,
8567 * but at least Perl will link and 99.999% of tests will work. */
8568 #if !defined(Perl_fp_class_denorm)
8569 # define Perl_fp_class_denorm(x) FALSE
8572 #ifdef DOUBLE_IS_IEEE_FORMAT
8573 # define DOUBLE_HAS_INF
8574 # define DOUBLE_HAS_NAN
8577 #ifdef DOUBLE_HAS_NAN
8583 /* PL_inf and PL_nan initialization.
8585 * For inf and nan initialization the ultimate fallback is dividing
8586 * one or zero by zero: however, some compilers will warn or even fail
8587 * on divide-by-zero, but hopefully something earlier will work.
8589 * If you are thinking of using HUGE_VAL for infinity, or using
8590 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
8591 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
8592 * and the math functions might be just generating DBL_MAX, or even zero.
8594 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
8595 * Though logically correct, some compilers (like Visual C 2003)
8596 * falsely misoptimize that to zero (x-x is always zero, right?)
8598 * Finally, note that not all floating point formats define Inf (or NaN).
8599 * For the infinity a large number may be used instead. Operations that
8600 * under the IEEE floating point would return Inf or NaN may return
8601 * either large numbers (positive or negative), or they may cause
8602 * a floating point exception or some other fault.
8605 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
8606 # ifndef USE_CPLUSPLUS
8607 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
8610 # ifdef USE_QUADMATH
8611 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
8613 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
8614 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
8615 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
8616 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
8617 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
8619 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
8620 # if defined(LDBL_INFINITY)
8621 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
8622 # elif defined(LDBL_INF)
8623 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
8624 # elif defined(INFINITY)
8625 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
8627 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
8629 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
8632 # if defined(DBL_INFINITY)
8633 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
8634 # elif defined(DBL_INF)
8635 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
8636 # elif defined(INFINITY) /* C99 */
8637 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
8639 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
8641 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
8646 # ifdef USE_QUADMATH
8647 /* Cannot use nanq("0") for PL_nan because not a compile-time
8649 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
8650 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
8651 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
8652 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
8653 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
8655 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
8656 # if defined(LDBL_NAN)
8657 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
8658 # elif defined(LDBL_QNAN)
8659 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
8661 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
8663 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
8666 # if defined(DBL_NAN)
8667 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
8668 # elif defined(DBL_QNAN)
8669 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
8670 # elif defined(NAN) /* C99 */
8671 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
8673 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
8678 # ifndef USE_CPLUSPLUS
8679 GCC_DIAG_RESTORE_DECL;
8684 /* The declarations here need to match the initializations done above,
8685 since a mismatch across compilation units causes undefined
8686 behavior. It also prevents warnings from LTO builds.
8688 # if !defined(USE_QUADMATH) && \
8689 (NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES) || \
8690 NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES))
8691 INFNAN_U8_NV_DECL PL_inf;
8693 INFNAN_NV_U8_DECL PL_inf;
8696 # if !defined(USE_QUADMATH) && \
8697 (NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES) || \
8698 NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES))
8699 INFNAN_U8_NV_DECL PL_nan;
8701 INFNAN_NV_U8_DECL PL_nan;
8708 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
8709 * we will define NV_INF/NV_NAN as the nv part of the global const
8710 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
8711 * might not be a compile-time constant, in which case it cannot be
8712 * used to initialize PL_inf/PL_nan above. */
8714 # define NV_INF PL_inf.nv
8717 # define NV_NAN PL_nan.nv
8720 /* NaNs (not-a-numbers) can carry payload bits, in addition to
8721 * "nan-ness". Part of the payload is the quiet/signaling bit.
8722 * To back up a bit (harhar):
8724 * For IEEE 754 64-bit formats [1]:
8726 * s 000 (mantissa all-zero) zero
8727 * s 000 (mantissa non-zero) subnormals (denormals)
8728 * s 001 ... 7fe normals
8731 * For IEEE 754 128-bit formats:
8733 * s 0000 (mantissa all-zero) zero
8734 * s 0000 (mantissa non-zero) subnormals (denormals)
8735 * s 0001 ... 7ffe normals
8738 * [1] this looks like big-endian, but applies equally to little-endian.
8740 * s = Sign bit. Yes, zeros and nans can have negative sign,
8741 * the interpretation is application-specific.
8743 * q = Quietness bit, the interpretation is platform-specific.
8744 * Most platforms have the most significant bit being one
8745 * meaning quiet, but some (older mips, hppa) have the msb
8746 * being one meaning signaling. Note that the above means
8747 * that on most platforms there cannot be signaling nan with
8748 * zero payload because that is identical with infinity;
8749 * while conversely on older mips/hppa there cannot be a quiet nan
8750 * because that is identical with infinity.
8752 * Moreover, whether there is any behavioral difference
8753 * between quiet and signaling NaNs, depends on the platform.
8755 * x86 80-bit extended precision is different, the mantissa bits:
8757 * 63 62 61 30387+ pre-387 visual c
8758 * -------- ---- -------- --------
8759 * 0 0 0 invalid infinity
8760 * 0 0 1 invalid snan
8761 * 0 1 0 invalid snan
8762 * 0 1 1 invalid snan
8763 * 1 0 0 infinity snan 1.#INF
8764 * 1 0 1 snan 1.#SNAN
8765 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
8766 * 1 1 1 qnan 1.#QNAN
8768 * This means that in this format there are 61 bits available
8769 * for the nan payload.
8771 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
8772 * simply cannot preserve the bit. You can either use the 80-bit
8773 * extended precision (long double, -Duselongdouble), or use x86-64.
8775 * In all platforms, the payload bytes (and bits, some of them are
8776 * often in a partial byte) themselves can be either all zero (x86),
8777 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
8778 * or in a double-double, the first half of the payload can follow the
8779 * native double, while in the second half the payload can be all
8780 * zeros. (Therefore the mask for payload bits is not necessarily
8781 * identical to bit complement of the NaN.) Another way of putting
8782 * this: the payload for the default NaN might not be zero.
8784 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
8785 * being 'packaged' in either 12 or 16 bytes) can be whatever random
8788 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
8789 * On normal floats, the sign bit being on means negative. But this may,
8790 * or may not, be reverted on NaNs: in other words, the default NaN might
8791 * have the sign bit on, and therefore look like negative if you look
8792 * at it at the bit level.
8794 * NaN payloads are not propagated even on copies, or in arithmetics.
8795 * They *might* be, according to some rules, on your particular
8796 * cpu/os/compiler/libraries, but no guarantees.
8798 * To summarize, on most platforms, and for 64-bit doubles
8799 * (using big-endian ordering here):
8801 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
8802 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
8803 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
8804 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
8806 * The C99 nan() is supposed to generate *quiet* NaNs.
8808 * Note the asymmetry:
8809 * The 7FF0000000000000 is positive infinity,
8810 * the FFF0000000000000 is negative infinity.
8813 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
8814 * For the standard IEEE 754 fp this number is usually one less that
8815 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
8816 * real. For the 80-bit extended precision formats (x86*), the number
8817 * of mantissa bits... depends. For normal floats, it's 64. But for
8818 * the inf/nan, it's different (zero for inf, 61 for nan).
8819 * NVMANTBITS works for normal floats. */
8821 /* We do not want to include the quiet/signaling bit. */
8822 #define NV_NAN_BITS (NVMANTBITS - 1)
8824 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
8825 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8826 # define NV_NAN_QS_BYTE_OFFSET 13
8827 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8828 # define NV_NAN_QS_BYTE_OFFSET 2
8829 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
8830 # define NV_NAN_QS_BYTE_OFFSET 7
8831 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8832 # define NV_NAN_QS_BYTE_OFFSET 2
8833 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8834 # define NV_NAN_QS_BYTE_OFFSET 13
8835 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8836 # define NV_NAN_QS_BYTE_OFFSET 1
8837 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8838 # define NV_NAN_QS_BYTE_OFFSET 9
8839 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8840 # define NV_NAN_QS_BYTE_OFFSET 6
8842 # error "Unexpected long double format"
8845 # ifdef USE_QUADMATH
8846 # ifdef NV_LITTLE_ENDIAN
8847 # define NV_NAN_QS_BYTE_OFFSET 13
8848 # elif defined(NV_BIG_ENDIAN)
8849 # define NV_NAN_QS_BYTE_OFFSET 2
8851 # error "Unexpected quadmath format"
8853 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8854 # define NV_NAN_QS_BYTE_OFFSET 2
8855 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8856 # define NV_NAN_QS_BYTE_OFFSET 1
8857 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8858 # define NV_NAN_QS_BYTE_OFFSET 6
8859 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8860 # define NV_NAN_QS_BYTE_OFFSET 1
8861 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8862 # define NV_NAN_QS_BYTE_OFFSET 13
8863 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8864 # define NV_NAN_QS_BYTE_OFFSET 2
8865 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8866 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
8867 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8868 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
8870 /* For example the VAX formats should never
8871 * get here because they do not have NaN. */
8872 # error "Unexpected double format"
8875 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
8876 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
8877 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
8878 * for the quiet/signaling */
8879 #if defined(USE_LONG_DOUBLE) && \
8880 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
8881 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
8882 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
8883 #elif defined(USE_LONG_DOUBLE) && \
8884 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
8885 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
8886 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
8887 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
8888 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
8890 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
8892 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
8893 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
8894 * (bytes ordered big-endianly) for the quiet/signaling bit
8895 * for the quiet/signaling */
8896 #define NV_NAN_QS_BIT_OFFSET \
8897 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
8898 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
8899 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
8900 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
8901 #define NV_NAN_QS_QUIET \
8902 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
8903 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
8904 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
8905 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
8906 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
8907 * Note however that these do not check whether the nvp is a NaN. */
8908 #define NV_NAN_IS_QUIET(nvp) \
8909 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
8910 #define NV_NAN_IS_SIGNALING(nvp) \
8911 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
8912 #define NV_NAN_SET_QUIET(nvp) \
8913 (NV_NAN_QS_QUIET ? \
8914 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
8915 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
8916 #define NV_NAN_SET_SIGNALING(nvp) \
8917 (NV_NAN_QS_QUIET ? \
8918 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
8919 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
8920 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
8922 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
8924 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
8925 * 0xFF means "don't go here".*/
8927 /* Shorthands to avoid typoses. */
8928 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
8929 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
8930 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
8931 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8932 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
8933 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
8934 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
8935 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
8936 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
8937 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
8938 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
8939 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
8940 NV_NAN_PAYLOAD_PERM_0_TO_7, \
8941 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
8942 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
8943 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8944 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8945 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
8946 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
8947 NV_NAN_PAYLOAD_PERM_7_TO_0
8948 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
8949 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
8950 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
8951 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
8952 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
8953 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8954 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
8955 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
8957 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
8958 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8959 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8960 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8961 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8962 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8963 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8964 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
8965 # if LONG_DOUBLESIZE == 10
8966 # define NV_NAN_PAYLOAD_MASK \
8967 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8969 # define NV_NAN_PAYLOAD_PERM \
8970 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
8971 # elif LONG_DOUBLESIZE == 12
8972 # define NV_NAN_PAYLOAD_MASK \
8973 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8974 0x00, 0x00, 0x00, 0x00
8975 # define NV_NAN_PAYLOAD_PERM \
8976 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
8977 # elif LONG_DOUBLESIZE == 16
8978 # define NV_NAN_PAYLOAD_MASK \
8979 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8980 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8981 # define NV_NAN_PAYLOAD_PERM \
8982 NV_NAN_PAYLOAD_PERM_0_TO_7, \
8983 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8985 # error "Unexpected x86 80-bit little-endian long double format"
8987 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8988 # if LONG_DOUBLESIZE == 10
8989 # define NV_NAN_PAYLOAD_MASK \
8990 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8992 # define NV_NAN_PAYLOAD_PERM \
8993 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
8994 # elif LONG_DOUBLESIZE == 12
8995 # define NV_NAN_PAYLOAD_MASK \
8996 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8997 0xff, 0xff, 0x00, 0x00
8998 # define NV_NAN_PAYLOAD_PERM \
8999 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
9000 # elif LONG_DOUBLESIZE == 16
9001 # define NV_NAN_PAYLOAD_MASK \
9002 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
9003 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
9004 # define NV_NAN_PAYLOAD_PERM \
9005 NV_NAN_PAYLOAD_PERM_7_TO_0, \
9006 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
9008 # error "Unexpected x86 80-bit big-endian long double format"
9010 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
9011 /* For double-double we assume only the first double (in LE or BE terms)
9012 * is used for NaN. */
9013 # define NV_NAN_PAYLOAD_MASK \
9014 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
9015 # define NV_NAN_PAYLOAD_PERM \
9016 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
9017 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
9018 # define NV_NAN_PAYLOAD_MASK \
9019 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
9020 # define NV_NAN_PAYLOAD_PERM \
9021 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
9022 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
9023 # define NV_NAN_PAYLOAD_MASK \
9024 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
9025 # define NV_NAN_PAYLOAD_PERM \
9026 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
9027 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
9028 # define NV_NAN_PAYLOAD_MASK \
9029 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
9030 # define NV_NAN_PAYLOAD_PERM \
9031 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
9033 # error "Unexpected long double format"
9036 # ifdef USE_QUADMATH /* quadmath is not long double */
9037 # ifdef NV_LITTLE_ENDIAN
9038 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
9039 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
9040 # elif defined(NV_BIG_ENDIAN)
9041 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
9042 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
9044 # error "Unexpected quadmath format"
9046 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
9047 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
9048 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
9049 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
9050 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
9051 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
9052 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
9053 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
9054 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
9055 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
9056 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
9057 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
9058 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
9059 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
9060 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
9061 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
9062 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
9063 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
9064 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
9065 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
9066 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
9067 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
9068 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
9069 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
9071 # error "Unexpected double format"
9075 #endif /* DOUBLE_HAS_NAN */
9077 /* these are used to faciliate the env var PERL_RAND_SEED,
9078 * which allows consistent behavior from code that calls
9079 * srand() with no arguments, either explicitly or implicitly.
9081 #define PERL_SRAND_OVERRIDE_NEXT() PERL_XORSHIFT32_A(PL_srand_override_next);
9083 #define PERL_SRAND_OVERRIDE_NEXT_INIT() STMT_START { \
9084 PL_srand_override = PL_srand_override_next; \
9085 PERL_SRAND_OVERRIDE_NEXT(); \
9088 #define PERL_SRAND_OVERRIDE_GET(into) STMT_START { \
9089 into= PL_srand_override; \
9090 PERL_SRAND_OVERRIDE_NEXT_INIT(); \
9093 #define PERL_SRAND_OVERRIDE_NEXT_CHILD() STMT_START { \
9094 PERL_XORSHIFT32_B(PL_srand_override_next); \
9095 PERL_SRAND_OVERRIDE_NEXT_INIT(); \
9098 #define PERL_SRAND_OVERRIDE_NEXT_PARENT() \
9099 PERL_SRAND_OVERRIDE_NEXT()
9101 /* in something like
9103 * perl -le'sub f { eval "BEGIN{ f() }" }'
9105 * Each iteration chews up 8 stacks frames, and we will eventually SEGV
9106 * due to C stack overflow.
9108 * This define provides a maximum limit to prevent the SEGV. Such code is
9109 * unusual, so it unlikely we need a very large number here.
9111 #ifndef PERL_MAX_NESTED_EVAL_BEGIN_BLOCKS_DEFAULT
9112 #define PERL_MAX_NESTED_EVAL_BEGIN_BLOCKS_DEFAULT 1000
9114 /* ${^MAX_NESTED_EVAL_BEGIN_BLOCKS} */
9115 #define PERL_VAR_MAX_NESTED_EVAL_BEGIN_BLOCKS "\015AX_NESTED_EVAL_BEGIN_BLOCKS"
9117 /* Defines like this make it easier to do porting/diag.t. They are no-
9118 * ops that return their argument which can be used to hint to diag.t
9119 * that a string is actually an error message. By putting the category
9120 * information into the macro name it considerably simplifies extended
9121 * diag.t to support these cases. Feel free to add more.
9123 * While it seems tempting to try to convert all of our diagnostics to
9124 * this format, it would miss part of the point of diag.t in that it
9125 * detects NEW diagnostics, which would not necessarily use these
9126 * macros. The macros instead exist where we know we have an error
9127 * message that isnt being picked up by diag.t because it is declared
9128 * as a string independently of the function it is fed to, something
9129 * diag.t can never handle right without help.
9131 #define PERL_DIAG_STR_(x) ("" x "")
9132 #define PERL_DIAG_WARN_SYNTAX(x) PERL_DIAG_STR_(x)
9133 #define PERL_DIAG_DIE_SYNTAX(x) PERL_DIAG_STR_(x)
9135 #ifndef PERL_STOP_PARSING_AFTER_N_ERRORS
9136 #define PERL_STOP_PARSING_AFTER_N_ERRORS 10
9139 #define PERL_PARSE_ERROR_COUNT(f) (f)
9144 https://github.com/Perl/perl5/issues/21313
9146 Where gcc when generating code for 32-bit windows assumes the stack
9147 is 16 byte aligned, where the system doesn't guarantee that.
9149 The code generated by gcc itself does maintain 16 byte alignment,
9150 but callbacks from the CRT or Windows APIs don't, so calls to
9151 code that is generated to SSE instructions (like the quadmath code
9152 by default), crashes when called from a callback.
9154 Since other code other than quadmath might use SSE instructions,
9155 also enable this outside of quadmath builds.
9157 This change is a little risky: if an XS module uses callbacks
9158 and those callbacks may also produce alignment errors, if that
9159 becomes a problem we'll need to use the nuclear option: building
9160 32-bit perl with -mstackrealign.
9162 #if defined(WIN32) && !defined(WIN64) && defined(__GNUC__)
9163 # define PERL_STACK_REALIGN __attribute__((force_align_arg_pointer))
9165 # define PERL_STACK_REALIGN
9170 (KEEP THIS LAST IN perl.h!)
9212 so that Configure picks them up.
9214 (KEEP THIS LAST IN perl.h!)
9218 #endif /* Include guard */
9221 * ex: set ts=8 sts=4 sw=4 et:
https://perl5.git.perl.org / perl5.git / blob