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.
16 * This file is being used for x2p stuff.
17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
18 * Decouple x2p stuff from some of perls more extreme eccentricities.
23 #endif /* PERL_FOR_X2P */
31 /* this is used for functions which take a depth trailing
32 * argument under debugging */
34 # define _pDEPTH ,U32 depth
35 # define _aDEPTH ,depth
41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
48 defined(_STDC_C99) || defined(__c99)
52 /* See L<perlguts/"The Perl API"> for detailed notes on
53 * MULTIPLICITY and PERL_IMPLICIT_SYS */
55 /* XXX NOTE that from here --> to <-- the same logic is
56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
60 # if !defined(MULTIPLICITY)
65 /* PERL_IMPLICIT_CONTEXT is a legacy synonym for MULTIPLICITY */
67 # ifndef PERL_IMPLICIT_CONTEXT
68 # define PERL_IMPLICIT_CONTEXT
71 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(MULTIPLICITY)
75 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
81 /* Use the reentrant APIs like localtime_r and getpwent_r */
82 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
83 * XXX KEEP makedef.pl copy of this code in sync */
84 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
85 # define USE_REENTRANT_API
88 /* <--- here ends the logic shared by perl.h and makedef.pl */
91 =for apidoc_section $directives
92 =for apidoc AmnUu|void|EXTERN_C
93 When not compiling using C++, expands to nothing.
94 Otherwise is used in a declaration of a function to indicate the function
95 should have external C linkage. This is required for things to work for just
96 about all functions with external linkage compiled into perl.
97 Often, you can use C<L</START_EXTERN_C>> ... C<L</END_EXTERN_C>> blocks
98 surrounding all your code that you need to have this linkage.
102 EXTERN_C int flock(int fd, int op);
104 =for apidoc Amnu||START_EXTERN_C
105 When not compiling using C++, expands to nothing.
106 Otherwise begins a section of code in which every function will effectively
107 have C<L</EXTERN_C>> applied to it, that is to have external C linkage. The
108 section is ended by a C<L</END_EXTERN_C>>.
110 =for apidoc Amnu||END_EXTERN_C
111 When not compiling using C++, expands to nothing.
112 Otherwise ends a section of code already begun by a C<L</START_EXTERN_C>>.
117 #undef START_EXTERN_C
121 # define EXTERN_C extern "C"
122 # define START_EXTERN_C EXTERN_C {
123 # define END_EXTERN_C }
125 # define START_EXTERN_C
126 # define END_EXTERN_C
127 # define EXTERN_C extern
130 /* Fallback definitions in case we don't have definitions from config.h.
131 This should only matter for systems that don't use Configure and
132 haven't been modified to define PERL_STATIC_INLINE yet.
134 #if !defined(PERL_STATIC_INLINE)
135 # ifdef HAS_STATIC_INLINE
136 # define PERL_STATIC_INLINE static inline
138 # define PERL_STATIC_INLINE static
143 =for apidoc_section $concurrency
144 =for apidoc AmU|void|dTHXa|PerlInterpreter * a
145 On threaded perls, set C<pTHX> to C<a>; on unthreaded perls, do nothing
147 =for apidoc AmU|void|dTHXoa|PerlInterpreter * a
148 Now a synonym for C<L</dTHXa>>.
154 # define tTHX PerlInterpreter*
155 # define pTHX tTHX my_perl PERL_UNUSED_DECL
156 # define aTHX my_perl
157 # define aTHXa(a) aTHX = (tTHX)a
158 # define dTHXa(a) pTHX = (tTHX)a
159 # define dTHX pTHX = PERL_GET_THX
172 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
173 # define PERL_TRACK_MEMPOOL
176 # undef PERL_TRACK_MEMPOOL
180 # define dTHX_DEBUGGING dTHX
182 # define dTHX_DEBUGGING dNOOP
185 #define STATIC static
188 /* Do not use these macros. They were part of PERL_OBJECT, which was an
189 * implementation of multiplicity using C++ objects. They have been left
190 * here solely for the sake of XS code which has incorrectly
193 * The only one Devel::PPPort handles is this; list it as deprecated
195 =for apidoc_section $concurrency
196 =for apidoc AmD|void|CPERLscope|void x
201 # define CPERLscope(x) x
202 # define CPERLarg void
205 # define PERL_OBJECT_THIS
206 # define _PERL_OBJECT_THIS
207 # define PERL_OBJECT_THIS_
208 # define CALL_FPTR(fptr) (*fptr)
209 # define MEMBER_TO_FPTR(name) name
210 #endif /* !PERL_CORE */
212 #define CALLRUNOPS PL_runops
214 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
216 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
217 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
218 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
219 (strbeg),(minend),(sv),(data),(flags))
220 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
221 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
222 (strend),(flags),(data))
223 #define CALLREG_INTUIT_STRING(prog) \
224 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
226 #define CALLREGFREE(prog) \
227 Perl_pregfree(aTHX_ (prog))
229 #define CALLREGFREE_PVT(prog) \
230 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
232 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
233 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
235 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
236 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
238 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
239 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
241 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
242 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
244 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
245 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
247 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
248 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
250 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
251 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
253 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
256 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
257 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
259 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
260 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
262 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
263 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
265 #define CALLREG_NAMED_BUFF_COUNT(rx) \
266 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
268 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
269 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
271 #define CALLREG_PACKAGE(rx) \
272 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
274 #if defined(USE_ITHREADS)
275 # define CALLREGDUPE(prog,param) \
276 Perl_re_dup(aTHX_ (prog),(param))
278 # define CALLREGDUPE_PVT(prog,param) \
279 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
283 /* some compilers impersonate gcc */
284 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
285 # define PERL_IS_GCC 1
288 /* In case Configure was not used (we are using a "canned config"
289 * such as Win32, or a cross-compilation setup, for example) try going
290 * by the gcc major and minor versions. One useful URL is
291 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
292 * but contrary to this information warn_unused_result seems
293 * not to be in gcc 3.3.5, at least. --jhi
294 * Also, when building extensions with an installed perl, this allows
295 * the user to upgrade gcc and get the right attributes, rather than
296 * relying on the list generated at Configure time. --AD
297 * Set these up now otherwise we get confused when some of the <*thread.h>
298 * includes below indirectly pull in <perlio.h> (which needs to know if we
299 * have HASATTRIBUTE_FORMAT).
303 # if defined __GNUC__ && !defined(__INTEL_COMPILER)
304 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
305 # define HASATTRIBUTE_DEPRECATED
307 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
308 # define HASATTRIBUTE_FORMAT
309 # if defined __MINGW32__
310 # define PRINTF_FORMAT_NULL_OK
313 # if __GNUC__ >= 3 /* 3.0 -> */
314 # define HASATTRIBUTE_MALLOC
316 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
317 # define HASATTRIBUTE_NONNULL
319 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
320 # define HASATTRIBUTE_NORETURN
322 # if __GNUC__ >= 3 /* gcc 3.0 -> */
323 # define HASATTRIBUTE_PURE
325 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
326 # define HASATTRIBUTE_UNUSED
328 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
329 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
331 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
332 # define HASATTRIBUTE_WARN_UNUSED_RESULT
334 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
335 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
336 # define HASATTRIBUTE_ALWAYS_INLINE
339 #endif /* #ifndef PERL_MICRO */
341 #ifdef HASATTRIBUTE_DEPRECATED
342 # define __attribute__deprecated__ __attribute__((deprecated))
344 #ifdef HASATTRIBUTE_FORMAT
345 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
347 #ifdef HASATTRIBUTE_MALLOC
348 # define __attribute__malloc__ __attribute__((__malloc__))
350 #ifdef HASATTRIBUTE_NONNULL
351 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
353 #ifdef HASATTRIBUTE_NORETURN
354 # define __attribute__noreturn__ __attribute__((noreturn))
356 #ifdef HASATTRIBUTE_PURE
357 # define __attribute__pure__ __attribute__((pure))
359 #ifdef HASATTRIBUTE_UNUSED
360 # define __attribute__unused__ __attribute__((unused))
362 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
363 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
365 #ifdef HASATTRIBUTE_ALWAYS_INLINE
366 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
367 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
368 # define __attribute__always_inline__ __attribute__((always_inline))
372 /* If we haven't defined the attributes yet, define them to blank. */
373 #ifndef __attribute__deprecated__
374 # define __attribute__deprecated__
376 #ifndef __attribute__format__
377 # define __attribute__format__(x,y,z)
379 #ifndef __attribute__malloc__
380 # define __attribute__malloc__
382 #ifndef __attribute__nonnull__
383 # define __attribute__nonnull__(a)
385 #ifndef __attribute__noreturn__
386 # define __attribute__noreturn__
388 #ifndef __attribute__pure__
389 # define __attribute__pure__
391 #ifndef __attribute__unused__
392 # define __attribute__unused__
394 #ifndef __attribute__warn_unused_result__
395 # define __attribute__warn_unused_result__
397 #ifndef __attribute__always_inline__
398 # define __attribute__always_inline__
401 /* Some OS warn on NULL format to printf */
402 #ifdef PRINTF_FORMAT_NULL_OK
403 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
405 # define __attribute__format__null_ok__(x,y,z)
409 * Because of backward compatibility reasons the PERL_UNUSED_DECL
410 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
412 * Note that there are C compilers such as MetroWerks CodeWarrior
413 * which do not have an "inlined" way (like the gcc __attribute__) of
414 * marking unused variables (they need e.g. a #pragma) and therefore
415 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
416 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
418 =for apidoc_section $directives
419 =for apidoc AmnU||PERL_UNUSED_DECL
420 Tells the compiler that the parameter in the function prototype just before it
421 is not necessarily expected to be used in the function. Not that many
422 compilers understand this, so this should only be used in cases where
423 C<L</PERL_UNUSED_ARG>> can't conveniently be used.
430 Perl_perly_sighandler(int sig, Siginfo_t *sip PERL_UNUSED_DECL,
431 void *uap PERL_UNUSED_DECL, bool safe)
438 #ifndef PERL_UNUSED_DECL
439 # define PERL_UNUSED_DECL __attribute__unused__
443 * for silencing unused variables that are actually used most of the time,
444 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
445 * or variables/arguments that are used only in certain configurations.
447 =for apidoc Ams||PERL_UNUSED_ARG|void x
448 This is used to suppress compiler warnings that a parameter to a function is
449 not used. This situation can arise, for example, when a parameter is needed
450 under some configuration conditions, but not others, so that C preprocessor
451 conditional compilation causes it be used just some times.
453 =for apidoc Amns||PERL_UNUSED_CONTEXT
454 This is used to suppress compiler warnings that the thread context parameter to
455 a function is not used. This situation can arise, for example, when a
456 C preprocessor conditional compilation causes it be used just some times.
458 =for apidoc Ams||PERL_UNUSED_VAR|void x
459 This is used to suppress compiler warnings that the variable I<x> is not used.
460 This situation can arise, for example, when a C preprocessor conditional
461 compilation causes it be used just some times.
465 #ifndef PERL_UNUSED_ARG
466 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
468 #ifndef PERL_UNUSED_VAR
469 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
472 #if defined(USE_ITHREADS)
473 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
475 # define PERL_UNUSED_CONTEXT
478 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
479 * g++ allows them but seems to have problems with them
480 * (insane errors ensue).
481 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
483 #if defined(PERL_GCC_PEDANTIC) || \
484 (defined(__GNUC__) && defined(__cplusplus) && \
485 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
486 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
487 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
493 =for apidoc Am||PERL_UNUSED_RESULT|void x
495 This macro indicates to discard the return value of the function call inside
498 PERL_UNUSED_RESULT(foo(a, b))
500 The main reason for this is that the combination of C<gcc -Wunused-result>
501 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
502 be silenced with casting to C<void>. This causes trouble when the system
503 header files use the attribute.
505 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
506 is there for a good reason: you might lose success/failure information,
507 or leak resources, or changes in resources.
509 But sometimes you just want to ignore the return value, I<e.g.>, on
510 codepaths soon ending up in abort, or in "best effort" attempts,
511 or in situations where there is no good way to handle failures.
513 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
514 another possibility is that you can capture the return value
515 and use C<L</PERL_UNUSED_VAR>> on that.
519 The __typeof__() is used instead of typeof() since typeof() is not
520 available under strict C89, and because of compilers masquerading
521 as gcc (clang and icc), we want exactly the gcc extension
522 __typeof__ and nothing else.
525 #ifndef PERL_UNUSED_RESULT
526 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
527 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
529 # define PERL_UNUSED_RESULT(v) ((void)(v))
533 #if defined(_MSC_VER) && _MSC_VER < 1400
534 /* XXX older MSVC versions have a smallish macro buffer */
535 # define PERL_SMALL_MACRO_BUFFER
538 /* on gcc (and clang), specify that a warning should be temporarily
541 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
543 * GCC_DIAG_RESTORE_DECL;
545 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
547 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
548 * clang only pretends to be GCC 4.2, but still supports push/pop.
550 * Note on usage: all macros must be used at a place where a declaration
551 * or statement can occur, i.e., not in the middle of an expression.
552 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
553 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
554 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
555 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
556 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
557 * and behave syntactically as statements (like NOOP).
561 #if defined(__clang__) || defined(__clang) || \
562 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
563 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
564 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
565 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
566 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
567 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
569 # define GCC_DIAG_IGNORE(w)
570 # define GCC_DIAG_RESTORE
572 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
573 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
574 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
575 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
576 /* for clang specific pragmas */
577 #if defined(__clang__) || defined(__clang)
578 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
579 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
580 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
581 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
583 # define CLANG_DIAG_IGNORE(w)
584 # define CLANG_DIAG_RESTORE
586 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
587 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
588 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
589 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
591 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
592 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
593 __pragma(warning(disable : x))
594 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
596 # define MSVC_DIAG_IGNORE(x)
597 # define MSVC_DIAG_RESTORE
599 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
600 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
601 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
602 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
605 =for apidoc Amns||NOOP
606 Do nothing; typically used as a placeholder to replace something that used to
609 =for apidoc Amns||dNOOP
610 Declare nothing; typically used as a placeholder to replace something that used
611 to declare something. Works on compilers that require declarations before any
616 #define NOOP /*EMPTY*/(void)0
617 #define dNOOP struct Perl___notused_struct
620 /* Don't bother defining tTHX ; using it outside
621 * code guarded by MULTIPLICITY is an error.
627 # define aTHXa(a) NOOP
628 # define dTHXa(a) dNOOP
643 =for apidoc_section $concurrency
644 =for apidoc AmnU||dVAR
645 This is now a synonym for dNOOP: declare nothing
647 =for apidoc_section $XS
648 =for apidoc Amns||dMY_CXT_SV
649 Now a placeholder that declares nothing
655 /* Backwards compatibility macro for XS code. It used to be part of the
656 * PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
659 /* these are only defined for compatibility; should not be used internally.
661 # define dMY_CXT_SV dNOOP
664 # define pTHXo_ pTHX_
666 # define aTHXo_ aTHX_
668 # define dTHXoa(x) dTHXa(x)
673 # define pTHXx PerlInterpreter *my_perl
674 # define pTHXx_ pTHXx,
675 # define aTHXx my_perl
676 # define aTHXx_ aTHXx,
680 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
681 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
682 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
683 #ifdef PERL_IMPLICIT_SYS
689 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
690 # ifndef PERL_USE_GCC_BRACE_GROUPS
691 # define PERL_USE_GCC_BRACE_GROUPS
696 =for apidoc_section $directives
697 =for apidoc AmnUu|void|STMT_START
698 =for apidoc_item ||STMT_END
700 This allows a series of statements in a macro to be used as a single statement,
703 if (x) STMT_START { ... } STMT_END else ...
705 Note that you can't return a value out of them, which limits their utility.
706 But see C<L</PERL_USE_GCC_BRACE_GROUPS>>.
708 =for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
710 This C pre-processor value, if defined, indicates that it is permissible to use
711 the GCC brace groups extension. This extension, of the form
715 turns the block consisting of I<statements ...> into an expression with a
716 value, unlike plain C language blocks. This can present optimization
717 possibilities, B<BUT> you generally need to specify an alternative in case this
718 ability doesn't exist or has otherwise been forbidden.
724 #ifdef PERL_USE_GCC_BRACE_GROUPS
734 Trying to select a version that gives no warnings...
736 #if !(defined(STMT_START) && defined(STMT_END))
737 # ifdef PERL_USE_GCC_BRACE_GROUPS
738 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
741 # define STMT_START do
742 # define STMT_END while (0)
746 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
747 # define BYTEORDER 0x1234
750 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
757 * The following contortions are brought to you on behalf of all the
758 * standards, semi-standards, de facto standards, not-so-de-facto standards
759 * of the world, as well as all the other botches anyone ever thought of.
760 * The basic theory is that if we work hard enough here, the rest of the
761 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
764 /* define this once if either system, instead of cluttering up the src */
765 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
769 /* These exist only for back-compat with XS modules. */
772 #define CAN_PROTOTYPE
779 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
780 * you get a perl without taint support, but doubtlessly with a lesser
781 * degree of support. Do not do so unless you know exactly what it means
782 * technically, have a good reason to do so, and know exactly how the
783 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
784 * a potential security risk due to flat out ignoring the security-relevant
785 * taint flags. This being said, a perl without taint support compiled in
786 * has marginal run-time performance benefits.
787 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
788 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
789 * silently ignores -t/-T instead of throwing an exception.
791 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
792 * voids your nonexistent warranty!
794 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
795 # define NO_TAINT_SUPPORT 1
798 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
799 * operations into no-ops for a very modest speed-up. Enable only if you
800 * know what you're doing: tests and CPAN modules' tests are bound to fail.
802 #ifdef NO_TAINT_SUPPORT
804 # define TAINT_NOT NOOP
805 # define TAINT_IF(c) NOOP
806 # define TAINT_ENV() NOOP
807 # define TAINT_PROPER(s) NOOP
808 # define TAINT_set(s) NOOP
810 # define TAINTING_get 0
811 # define TAINTING_set(s) NOOP
812 # define TAINT_WARN_get 0
813 # define TAINT_WARN_set(s) NOOP
815 /* Set to tainted if we are running under tainting mode */
816 # define TAINT (PL_tainted = PL_tainting)
818 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
819 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
820 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
821 /* croak or warn if tainting */
822 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
823 taint_proper(NULL, s); \
825 # define TAINT_set(s) (PL_tainted = (s))
826 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
827 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
828 # define TAINTING_set(s) (PL_tainting = (s))
829 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
833 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
836 /* flags used internally only within pp_subst and pp_substcont */
838 # define SUBST_TAINT_STR 1 /* string tainted */
839 # define SUBST_TAINT_PAT 2 /* pattern tainted */
840 # define SUBST_TAINT_REPL 4 /* replacement tainted */
841 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
842 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
845 /* XXX All process group stuff is handled in pp_sys.c. Should these
846 defines move there? If so, I could simplify this a lot. --AD 9/96.
848 /* Process group stuff changed from traditional BSD to POSIX.
849 perlfunc.pod documents the traditional BSD-style syntax, so we'll
850 try to preserve that, if possible.
853 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
854 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
855 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
856 #elif defined(HAS_SETPGRP2)
857 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
859 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
860 # define HAS_SETPGRP /* Well, effectively it does . . . */
863 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
864 our life easier :-) so we'll try it.
867 # define BSD_GETPGRP(pid) getpgid((pid))
868 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
869 # define BSD_GETPGRP(pid) getpgrp((pid))
870 #elif defined(HAS_GETPGRP2)
871 # define BSD_GETPGRP(pid) getpgrp2((pid))
873 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
874 # define HAS_GETPGRP /* Well, effectively it does . . . */
877 /* These are not exact synonyms, since setpgrp() and getpgrp() may
878 have different behaviors, but perl.h used to define USE_BSDPGRP
879 (prior to 5.003_05) so some extension might depend on it.
881 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
887 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
888 pthread.h must be included before all other header files.
890 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
891 # include <pthread.h>
894 #include <sys/types.h>
910 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
923 # include <xlocale.h>
926 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
927 * functions are available, or 2) just the setlocale() function. This logic is
928 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
930 #if ! defined(NO_LOCALE)
932 # if ! defined(NO_POSIX_2008_LOCALE) \
933 && defined(HAS_NEWLOCALE) \
934 && defined(HAS_USELOCALE) \
935 && defined(HAS_DUPLOCALE) \
936 && defined(HAS_FREELOCALE) \
937 && defined(LC_ALL_MASK)
939 /* For simplicity, the code is written to assume that any platform advanced
940 * enough to have the Posix 2008 locale functions has LC_ALL. The final
941 * test above makes sure that assumption is valid */
943 # define HAS_POSIX_2008_LOCALE
945 # elif defined(HAS_SETLOCALE)
951 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
953 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
954 && defined(HAS_STRXFRM)
955 # define USE_LOCALE_COLLATE
957 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
958 # define USE_LOCALE_CTYPE
960 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
961 # define USE_LOCALE_NUMERIC
963 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
964 # define USE_LOCALE_MESSAGES
966 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
967 # define USE_LOCALE_MONETARY
969 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
970 # define USE_LOCALE_TIME
972 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
973 # define USE_LOCALE_ADDRESS
975 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
976 # define USE_LOCALE_IDENTIFICATION
978 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
979 # define USE_LOCALE_MEASUREMENT
981 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
982 # define USE_LOCALE_PAPER
984 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
985 # define USE_LOCALE_TELEPHONE
987 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
988 # define USE_LOCALE_SYNTAX
990 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
991 # define USE_LOCALE_TOD
994 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
995 * changes here MUST also be made there */
997 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
998 # define USE_POSIX_2008_LOCALE
999 # ifndef USE_THREAD_SAFE_LOCALE
1000 # define USE_THREAD_SAFE_LOCALE
1003 * -DUSE_THREAD_SAFE_LOCALE, will do so even
1004 * on unthreaded builds */
1005 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
1006 && ( defined(HAS_POSIX_2008_LOCALE) \
1007 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
1008 && ! defined(NO_THREAD_SAFE_LOCALE)
1009 # ifndef USE_THREAD_SAFE_LOCALE
1010 # define USE_THREAD_SAFE_LOCALE
1012 # ifdef HAS_POSIX_2008_LOCALE
1013 # define USE_POSIX_2008_LOCALE
1018 /* Microsoft documentation reads in the change log for VS 2015:
1019 * "The localeconv function declared in locale.h now works correctly when
1020 * per-thread locale is enabled. In previous versions of the library, this
1021 * function would return the lconv data for the global locale, not the
1024 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
1025 # define TS_W32_BROKEN_LOCALECONV
1031 # ifdef PARAM_NEEDS_TYPES
1032 # include <sys/types.h>
1034 # include <sys/param.h>
1037 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
1038 value something like 199306. This may be useful if no more-specific
1039 feature test is available.
1047 /* Use all the "standard" definitions */
1050 /* If this causes problems, set i_unistd=undef in the hint file. */
1052 # if defined(__amigaos4__)
1053 # ifdef I_NETINET_IN
1054 # include <netinet/in.h>
1057 # include <unistd.h>
1058 # if defined(__amigaos4__)
1059 /* Under AmigaOS 4 newlib.library provides an environ. However using
1060 * it doesn't give us enough control over inheritance of variables by
1061 * subshells etc. so replace with custom version based on abc-shell
1063 extern char **myenviron;
1065 # define environ myenviron
1071 # include <sys/wait.h>
1074 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1075 EXTERN_C int syscall(int, ...);
1078 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1079 EXTERN_C int usleep(unsigned int);
1082 /* Macros for correct constant construction. These are in C99 <stdint.h>
1083 * (so they will not be available in strict C89 mode), but they are nice, so
1084 * let's define them if necessary.
1085 =for apidoc_section $integer
1086 =for apidoc Am|I16|INT16_C|number
1087 =for apidoc_item |I32|INT32_C|number
1088 =for apidoc_item |I64|INT64_C|number
1090 Returns a token the C compiler recognizes for the constant C<number> of the
1091 corresponding integer type on the machine.
1093 If the machine does not have a 64-bit type, C<INT64_C> is undefined.
1094 Use C<L</INTMAX_C>> to get the largest type available on the platform.
1096 =for apidoc Am|U16|UINT16_C|number
1097 =for apidoc_item |U32|UINT32_C|number
1098 =for apidoc_item |U64|UINT64_C|number
1100 Returns a token the C compiler recognizes for the constant C<number> of the
1101 corresponding unsigned integer type on the machine.
1103 If the machine does not have a 64-bit type, C<UINT64_C> is undefined.
1104 Use C<L</UINTMAX_C>> to get the largest type available on the platform.
1111 # define UINT16_C(x) ((U16_TYPE)x##U)
1113 # define UINT16_C(x) ((U16_TYPE)x##UL)
1119 # define UINT32_C(x) ((U32_TYPE)x##U)
1121 # define UINT32_C(x) ((U32_TYPE)x##UL)
1126 typedef intmax_t PERL_INTMAX_T;
1127 typedef uintmax_t PERL_UINTMAX_T;
1130 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1131 * actually mean what it has always been documented to mean (see RT #119753)
1132 * and is explicitly turned off outside of core with dire warnings about
1133 * removing the undef. */
1135 #if defined(QUADKIND)
1136 # undef PeRl_INT64_C
1137 # undef PeRl_UINT64_C
1138 /* Prefer the native integer types (int and long) over long long
1139 * (which is not C89) and Win32-specific __int64. */
1140 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1141 # define PeRl_INT64_C(c) (c)
1142 # define PeRl_UINT64_C(c) CAT2(c,U)
1144 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1145 # define PeRl_INT64_C(c) CAT2(c,L)
1146 # define PeRl_UINT64_C(c) CAT2(c,UL)
1148 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1149 # define PeRl_INT64_C(c) CAT2(c,LL)
1150 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1152 # if QUADKIND == QUAD_IS___INT64
1153 # define PeRl_INT64_C(c) CAT2(c,I64)
1154 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1156 # ifndef PeRl_INT64_C
1157 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1158 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1160 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1161 * not fly with C89-pedantic gcc, so let's undefine them first so that
1162 * we can redefine them with our native integer preferring versions. */
1163 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1168 # define INT64_C(c) PeRl_INT64_C(c)
1171 # define UINT64_C(c) PeRl_UINT64_C(c)
1175 =for apidoc_section $integer
1176 =for apidoc Am||INTMAX_C|number
1177 Returns a token the C compiler recognizes for the constant C<number> of the
1178 widest integer type on the machine. For example, if the machine has C<long
1179 long>s, C<INTMAX_C(-1)> would yield
1183 See also, for example, C<L</INT32_C>>.
1185 Use L</IV> to declare variables of the maximum usable size on this platform.
1187 =for apidoc Am||UINTMAX_C|number
1188 Returns a token the C compiler recognizes for the constant C<number> of the
1189 widest unsigned integer type on the machine. For example, if the machine has
1190 C<long>s, C<UINTMAX_C(1)> would yield
1194 See also, for example, C<L</UINT32_C>>.
1196 Use L</UV> to declare variables of the maximum usable size on this platform.
1202 typedef I64TYPE PERL_INTMAX_T;
1203 typedef U64TYPE PERL_UINTMAX_T;
1206 # define INTMAX_C(c) INT64_C(c)
1209 # define UINTMAX_C(c) UINT64_C(c)
1212 #else /* below QUADKIND is undefined */
1214 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1216 typedef I32TYPE PERL_INTMAX_T;
1217 typedef U32TYPE PERL_UINTMAX_T;
1220 # define INTMAX_C(c) INT32_C(c)
1223 # define UINTMAX_C(c) UINT32_C(c)
1226 #endif /* no QUADKIND */
1230 /* byte-swapping functions for big-/little-endian conversion */
1231 # define _swab_16_(x) ((U16)( \
1232 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1233 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1235 # define _swab_32_(x) ((U32)( \
1236 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1237 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1238 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1239 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1242 # define _swab_64_(x) ((U64)( \
1243 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1244 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1245 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1246 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1247 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1248 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1249 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1250 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1253 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1254 at least on FreeBSD. YMMV, so experiment. */
1255 #ifndef PERL_ARENA_SIZE
1256 #define PERL_ARENA_SIZE 4080
1259 /* Maximum level of recursion */
1260 #ifndef PERL_SUB_DEPTH_WARN
1261 #define PERL_SUB_DEPTH_WARN 100
1264 #endif /* PERL_CORE */
1266 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1267 * It determines the size of local arrays in S_maybe_multiconcat() and
1270 #define PERL_MULTICONCAT_MAXARG 64
1272 /* The indexes of fields of a multiconcat aux struct.
1273 * The fixed fields are followed by nargs+1 const segment lengths,
1274 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1277 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1278 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1279 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1280 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1281 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1282 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1283 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1284 multiconcat header */
1286 /* We no longer default to creating a new SV for GvSV.
1287 Do this before embed. */
1288 #ifndef PERL_CREATE_GVSV
1289 # ifndef PERL_DONT_CREATE_GVSV
1290 # define PERL_DONT_CREATE_GVSV
1294 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1295 #define PERL_USES_PL_PIDSTATUS
1298 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1299 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1302 #define MEM_SIZE Size_t
1304 /* Round all values passed to malloc up, by default to a multiple of
1307 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1308 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1311 /* sv_grow() will expand strings by at least a certain percentage of
1312 the previously *used* length to avoid excessive calls to realloc().
1313 The default is 25% of the current length.
1315 #ifndef PERL_STRLEN_EXPAND_SHIFT
1316 # define PERL_STRLEN_EXPAND_SHIFT 2
1319 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1320 * onwards) when building Socket.xs, but we can just use a different definition
1321 * for STRUCT_OFFSET instead. */
1322 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1323 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1325 # include <stddef.h>
1326 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1329 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1330 * in C89, but apparently there are platforms where it doesn't exist. See
1331 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1333 #ifdef PERL_GCC_PEDANTIC
1334 # undef HAS_PTRDIFF_T
1337 #ifdef HAS_PTRDIFF_T
1338 # define Ptrdiff_t ptrdiff_t
1340 # define Ptrdiff_t SSize_t
1343 # include <string.h>
1345 /* This comes after <stdlib.h> so we don't try to change the standard
1346 * library prototypes; we'll use our own in proto.h instead. */
1349 # ifdef PERL_POLLUTE_MALLOC
1350 # ifndef PERL_EXTMALLOC_DEF
1351 # define Perl_malloc malloc
1352 # define Perl_calloc calloc
1353 # define Perl_realloc realloc
1354 # define Perl_mfree free
1357 # define EMBEDMYMALLOC /* for compatibility */
1360 # define safemalloc Perl_malloc
1361 # define safecalloc Perl_calloc
1362 # define saferealloc Perl_realloc
1363 # define safefree Perl_mfree
1364 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1365 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1368 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1369 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1370 # define panic_write2(s) write(2, s, strlen(s))
1371 # define CHECK_MALLOC_TAINT(newval) \
1372 CHECK_MALLOC_TOO_LATE_FOR_( \
1374 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1376 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1377 if (doing_taint(argc,argv,env)) { \
1378 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1380 #else /* MYMALLOC */
1381 # define safemalloc safesysmalloc
1382 # define safecalloc safesyscalloc
1383 # define saferealloc safesysrealloc
1384 # define safefree safesysfree
1385 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1386 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1387 # define MALLOC_CHECK_TAINT(argc,argv,env)
1388 #endif /* MYMALLOC */
1390 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1391 #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)
1392 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1393 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1394 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1397 =for apidoc Am|void|memzero|void * d|Size_t l
1398 Set the C<l> bytes starting at C<*d> to all zeroes.
1403 # define memzero(d,l) memset(d,0,l)
1407 # include <netinet/in.h>
1411 # include <arpa/inet.h>
1415 # include <sys/stat.h>
1418 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1419 This definition should ideally go into win32/win32.h, but S_IFIFO is
1420 used later here in perl.h before win32/win32.h is being included. */
1421 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1422 # define S_IFIFO _S_IFIFO
1425 /* The stat macros for Unisoft System V/88 (and derivatives
1426 like UTekV) are broken, sometimes giving false positives. Undefine
1427 them here and let the code below set them to proper values.
1429 The ghs macro stands for GreenHills Software C-1.8.5 which
1430 is the C compiler for sysV88 and the various derivatives.
1431 This header file bug is corrected in gcc-2.5.8 and later versions.
1432 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1434 #if defined(m88k) && defined(ghs)
1446 # ifdef I_SYS_TIME_KERNEL
1449 # include <sys/time.h>
1450 # ifdef I_SYS_TIME_KERNEL
1455 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1456 # include <sys/times.h>
1461 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1462 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1465 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1466 # include <sys/socket.h>
1467 # if defined(USE_SOCKS) && defined(I_SOCKS)
1468 # if !defined(INCLUDE_PROTOTYPES)
1469 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1470 # define PERL_SOCKS_NEED_PROTOTYPES
1473 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1474 # undef INCLUDE_PROTOTYPES
1475 # undef PERL_SOCKS_NEED_PROTOTYPES
1486 # include <net/errno.h>
1491 /* sockatmark() is so new (2001) that many places might have it hidden
1492 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1493 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1494 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1495 # if defined(__THROW) && defined(__GLIBC__)
1496 int sockatmark(int) __THROW;
1498 int sockatmark(int);
1502 #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. */
1503 EXTERN_C int fchdir(int);
1504 EXTERN_C int flock(int, int);
1505 EXTERN_C int fseeko(FILE *, off_t, int);
1506 EXTERN_C off_t ftello(FILE *);
1509 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1510 EXTERN_C char *crypt(const char *, const char *);
1513 #if defined(__cplusplus) && defined(__CYGWIN__)
1514 EXTERN_C char *crypt(const char *, const char *);
1518 =for apidoc_section $errno
1520 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1522 Set C<errno>, and on VMS set C<vaxc$errno>.
1524 =for apidoc mn|void|dSAVEDERRNO
1526 Declare variables needed to save C<errno> and any operating system
1527 specific error number.
1529 =for apidoc mn|void|dSAVE_ERRNO
1531 Declare variables needed to save C<errno> and any operating system
1532 specific error number, and save them for optional later restoration
1533 by C<RESTORE_ERRNO>.
1535 =for apidoc mn|void|SAVE_ERRNO
1537 Save C<errno> and any operating system specific error number for
1538 optional later restoration by C<RESTORE_ERRNO>. Requires
1539 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1541 =for apidoc mn|void|RESTORE_ERRNO
1543 Restore C<errno> and any operating system specific error number that
1544 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1550 # undef SETERRNO /* SOCKS might have defined this */
1554 # define SETERRNO(errcode,vmserrcode) \
1556 set_errno(errcode); \
1557 set_vaxc_errno(vmserrcode); \
1559 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1560 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1561 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1562 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1564 # define LIB_INVARG LIB$_INVARG
1565 # define RMS_DIR RMS$_DIR
1566 # define RMS_FAC RMS$_FAC
1567 # define RMS_FEX RMS$_FEX
1568 # define RMS_FNF RMS$_FNF
1569 # define RMS_IFI RMS$_IFI
1570 # define RMS_ISI RMS$_ISI
1571 # define RMS_PRV RMS$_PRV
1572 # define SS_ACCVIO SS$_ACCVIO
1573 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1574 # define SS_IVCHAN SS$_IVCHAN
1575 # define SS_NORMAL SS$_NORMAL
1576 # define SS_NOPRIV SS$_NOPRIV
1577 # define SS_BUFFEROVF SS$_BUFFEROVF
1579 # define LIB_INVARG 0
1587 # define SS_ACCVIO 0
1588 # define SS_DEVOFFLINE 0
1589 # define SS_IVCHAN 0
1590 # define SS_NORMAL 0
1591 # define SS_NOPRIV 0
1592 # define SS_BUFFEROVF 0
1596 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1597 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1598 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1599 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1603 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1604 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1605 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1606 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1610 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1614 # define dSAVEDERRNO int saved_errno
1615 # define dSAVE_ERRNO int saved_errno = errno
1616 # define SAVE_ERRNO (saved_errno = errno)
1617 # define RESTORE_ERRNO (errno = saved_errno)
1621 =for apidoc_section $warning
1623 =for apidoc Amn|SV *|ERRSV
1625 Returns the SV for C<$@>, creating it if needed.
1627 =for apidoc Am|void|CLEAR_ERRSV
1629 Clear the contents of C<$@>, setting it to the empty string.
1631 This replaces any read-only SV with a fresh SV and removes any magic.
1633 =for apidoc Am|void|SANE_ERRSV
1635 Clean up ERRSV so we can safely set it.
1637 This replaces any read-only SV with a fresh writable copy and removes
1643 #define ERRSV GvSVn(PL_errgv)
1645 /* contains inlined gv_add_by_type */
1646 #define CLEAR_ERRSV() STMT_START { \
1647 SV ** const svp = &GvSV(PL_errgv); \
1649 *svp = newSVpvs(""); \
1650 } else if (SvREADONLY(*svp)) { \
1651 SvREFCNT_dec_NN(*svp); \
1652 *svp = newSVpvs(""); \
1654 SV *const errsv = *svp; \
1656 SvPOK_only(errsv); \
1657 if (SvMAGICAL(errsv)) { \
1663 /* contains inlined gv_add_by_type */
1664 #define SANE_ERRSV() STMT_START { \
1665 SV ** const svp = &GvSV(PL_errgv); \
1667 *svp = newSVpvs(""); \
1668 } else if (SvREADONLY(*svp)) { \
1669 SV *dupsv = newSVsv(*svp); \
1670 SvREFCNT_dec_NN(*svp); \
1673 SV *const errsv = *svp; \
1674 if (SvMAGICAL(errsv)) { \
1682 # define DEFSV (0 + GvSVn(PL_defgv))
1683 # define DEFSV_set(sv) \
1684 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1685 # define SAVE_DEFSV \
1687 save_gp(PL_defgv, 0), \
1688 GvINTRO_off(PL_defgv), \
1689 SAVEGENERICSV(GvSV(PL_defgv)), \
1690 GvSV(PL_defgv) = NULL \
1693 # define DEFSV GvSVn(PL_defgv)
1694 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1695 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1699 =for apidoc_section $SV
1700 =for apidoc Amn|SV *|DEFSV
1701 Returns the SV associated with C<$_>
1703 =for apidoc Am|void|DEFSV_set|SV * sv
1704 Associate C<sv> with C<$_>
1706 =for apidoc Amn|void|SAVE_DEFSV
1707 Localize C<$_>. See L<perlguts/Localizing changes>.
1713 extern int errno; /* ANSI allows errno to be an lvalue expr.
1714 * For example in multithreaded environments
1715 * something like this might happen:
1716 * extern int *_errno(void);
1717 * #define errno (*_errno()) */
1720 #define UNKNOWN_ERRNO_MSG "(unknown)"
1723 #define Strerror(e) strerror((e), vaxc$errno)
1725 #define Strerror(e) strerror(e)
1730 # include <sys/ioctl.h>
1734 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1735 # ifdef HAS_SOCKETPAIR
1736 # undef HAS_SOCKETPAIR
1743 #ifndef HAS_SOCKETPAIR
1745 # define socketpair Perl_my_socketpair
1750 # define htoni htons
1751 # define ntohi ntohs
1753 # define htoni htonl
1754 # define ntohi ntohl
1757 /* Configure already sets Direntry_t */
1758 #if defined(I_DIRENT)
1759 # include <dirent.h>
1760 #elif defined(I_SYS_NDIR)
1761 # include <sys/ndir.h>
1762 #elif defined(I_SYS_DIR)
1763 # include <sys/dir.h>
1767 * The following gobbledygook brought to you on behalf of __STDC__.
1768 * (I could just use #ifndef __STDC__, but this is more bulletproof
1769 * in the face of half-implementations.)
1772 #if defined(I_SYSMODE)
1773 #include <sys/mode.h>
1778 # define S_IFMT _S_IFMT
1780 # define S_IFMT 0170000
1785 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1789 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1794 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1796 # define S_ISBLK(m) (0)
1801 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1806 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1808 # define S_ISFIFO(m) (0)
1814 # define S_ISLNK(m) _S_ISLNK(m)
1815 # elif defined(_S_IFLNK)
1816 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1817 # elif defined(S_IFLNK)
1818 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1820 # define S_ISLNK(m) (0)
1826 # define S_ISSOCK(m) _S_ISSOCK(m)
1827 # elif defined(_S_IFSOCK)
1828 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1829 # elif defined(S_IFSOCK)
1830 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1832 # define S_ISSOCK(m) (0)
1838 # define S_IRUSR S_IREAD
1839 # define S_IWUSR S_IWRITE
1840 # define S_IXUSR S_IEXEC
1842 # define S_IRUSR 0400
1843 # define S_IWUSR 0200
1844 # define S_IXUSR 0100
1850 # define S_IRGRP (S_IRUSR>>3)
1851 # define S_IWGRP (S_IWUSR>>3)
1852 # define S_IXGRP (S_IXUSR>>3)
1854 # define S_IRGRP 0040
1855 # define S_IWGRP 0020
1856 # define S_IXGRP 0010
1862 # define S_IROTH (S_IRUSR>>6)
1863 # define S_IWOTH (S_IWUSR>>6)
1864 # define S_IXOTH (S_IXUSR>>6)
1866 # define S_IROTH 0040
1867 # define S_IWOTH 0020
1868 # define S_IXOTH 0010
1873 # define S_ISUID 04000
1877 # define S_ISGID 02000
1881 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1885 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1889 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1892 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1893 * which would get included through <sys/file.h >, but that is 3000
1894 * lines in the future. --jhi */
1896 #if !defined(S_IREAD) && !defined(__HAIKU__)
1897 # define S_IREAD S_IRUSR
1900 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1901 # define S_IWRITE S_IWUSR
1905 # define S_IEXEC S_IXUSR
1908 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1909 # define SLOPPYDIVIDE
1916 /* This used to be conditionally defined based on whether we had a sprintf()
1917 * that correctly returns the string length (as required by C89), but we no
1918 * longer need that. XS modules can (and do) use this name, so it must remain
1919 * a part of the API that's visible to modules.
1921 =for apidoc_section $string
1922 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1924 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1929 #define my_sprintf sprintf
1932 * If we have v?snprintf() and the C99 variadic macros, we can just
1933 * use just the v?snprintf(). It is nice to try to trap the buffer
1934 * overflow, however, so if we are DEBUGGING, and we cannot use the
1935 * gcc statement expressions, then use the function wrappers which try
1936 * to trap the overflow. If we can use the gcc statement expressions,
1937 * we can try that even with the version that uses the C99 variadic
1941 /* Note that we do not check against snprintf()/vsnprintf() returning
1942 * negative values because that is non-standard behaviour and we use
1943 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1944 * that should be true only if the snprintf()/vsnprintf() are true
1945 * to the standard. */
1947 #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
1950 # define my_snprintf Perl_my_snprintf
1951 # define PERL_MY_SNPRINTF_GUARDED
1952 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1953 # ifdef PERL_USE_GCC_BRACE_GROUPS
1954 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1955 # define PERL_MY_SNPRINTF_GUARDED
1957 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1960 # define my_snprintf Perl_my_snprintf
1961 # define PERL_MY_SNPRINTF_GUARDED
1964 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1965 * dies if called under USE_QUADMATH. */
1966 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1967 # ifdef PERL_USE_GCC_BRACE_GROUPS
1968 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1969 # define PERL_MY_VSNPRINTF_GUARDED
1971 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1974 # define my_vsnprintf Perl_my_vsnprintf
1975 # define PERL_MY_VSNPRINTF_GUARDED
1978 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1979 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1980 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1981 * completely ignore it: otherwise you cannot know whether your output
1984 * int len = my_sprintf(buf, max, ...);
1985 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1987 * The trick is that in certain platforms [a] the my_sprintf() already
1988 * contains the sanity check, while in certain platforms [b] it needs
1989 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1990 * platforms the POST_GUARD actually does nothing since the check has
1991 * already been done. Watch out for the max being the same in both calls.
1993 * If you actually use the snprintf/vsnprintf return value already,
1994 * you assumedly are checking its validity somehow. But you can
1995 * insert the POST_GUARD() also in that case. */
1997 #ifndef PERL_MY_SNPRINTF_GUARDED
1998 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
2000 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
2003 #ifndef PERL_MY_VSNPRINTF_GUARDED
2004 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
2006 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
2010 # define my_strlcat strlcat
2013 #if defined(PERL_CORE) || defined(PERL_EXT)
2015 # define my_memrchr memrchr
2017 # define my_memrchr S_my_memrchr
2022 # define my_strlcpy strlcpy
2026 # define my_strnlen strnlen
2030 The IV type is supposed to be long enough to hold any integral
2032 --Andy Dougherty August 1996
2038 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
2039 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
2040 # define IV_MAX ((IV)INT64_MAX)
2041 # define IV_MIN ((IV)INT64_MIN)
2042 # define UV_MAX ((UV)UINT64_MAX)
2044 # define UINT64_MIN 0
2046 # define UV_MIN ((UV)UINT64_MIN)
2048 # define IV_MAX PERL_QUAD_MAX
2049 # define IV_MIN PERL_QUAD_MIN
2050 # define UV_MAX PERL_UQUAD_MAX
2051 # define UV_MIN PERL_UQUAD_MIN
2056 # if defined(INT32_MAX) && IVSIZE == 4
2057 # define IV_MAX ((IV)INT32_MAX)
2058 # define IV_MIN ((IV)INT32_MIN)
2059 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
2060 # define UV_MAX ((UV)UINT32_MAX)
2062 # define UV_MAX ((UV)4294967295U)
2065 # define UINT32_MIN 0
2067 # define UV_MIN ((UV)UINT32_MIN)
2069 # define IV_MAX PERL_LONG_MAX
2070 # define IV_MIN PERL_LONG_MIN
2071 # define UV_MAX PERL_ULONG_MAX
2072 # define UV_MIN PERL_ULONG_MIN
2083 #if !defined(PERL_CORE)
2084 /* We think that removing this decade-old undef this will cause too much
2085 breakage on CPAN for too little gain. (See RT #119753)
2086 However, we do need HAS_QUAD in the core for use by the drand48 code. */
2092 #define Size_t_MAX (~(Size_t)0)
2093 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
2095 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
2096 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
2098 #ifndef NO_PERL_PRESERVE_IVUV
2099 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
2103 * The macros INT2PTR and NUM2PTR are (despite their names)
2104 * bi-directional: they will convert int/float to or from pointers.
2105 * However the conversion to int/float are named explicitly:
2106 * PTR2IV, PTR2UV, PTR2NV.
2108 * For int conversions we do not need two casts if pointers are
2109 * the same size as IV and UV. Otherwise we need an explicit
2110 * cast (PTRV) to avoid compiler warnings.
2112 * These are mentioned in perlguts
2114 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2116 # define INT2PTR(any,d) (any)(d)
2117 #elif PTRSIZE == LONGSIZE
2118 # define PTRV unsigned long
2119 # define PTR2ul(p) (unsigned long)(p)
2121 # define PTRV unsigned
2125 # define INT2PTR(any,d) (any)(PTRV)(d)
2129 # define PTR2ul(p) INT2PTR(unsigned long,p)
2133 =for apidoc_section Casting
2134 =for apidoc Cyh|type|NUM2PTR|type|int value
2135 You probably want to be using L<C</INT2PTR>> instead.
2140 #define NUM2PTR(any,d) (any)(PTRV)(d)
2141 #define PTR2IV(p) INT2PTR(IV,p)
2142 #define PTR2UV(p) INT2PTR(UV,p)
2143 #define PTR2NV(p) NUM2PTR(NV,p)
2144 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2146 /* According to strict ANSI C89 one cannot freely cast between
2147 * data pointers and function (code) pointers. There are at least
2148 * two ways around this. One (used below) is to do two casts,
2149 * first the other pointer to an (unsigned) integer, and then
2150 * the integer to the other pointer. The other way would be
2151 * to use unions to "overlay" the pointers. For an example of
2152 * the latter technique, see union dirpu in struct xpvio in sv.h.
2153 * The only feasible use is probably temporarily storing
2154 * function pointers in a data pointer (such as a void pointer). */
2156 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2157 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2159 #ifdef USE_LONG_DOUBLE
2160 # if LONG_DOUBLESIZE == DOUBLESIZE
2161 # define LONG_DOUBLE_EQUALS_DOUBLE
2162 # undef USE_LONG_DOUBLE /* Ouch! */
2166 /* The following is all to get LDBL_DIG, in order to pick a nice
2167 default value for printing floating point numbers in Gconvert.
2170 #ifndef HAS_LDBL_DIG
2171 # if LONG_DOUBLESIZE == 10
2172 # define LDBL_DIG 18 /* assume IEEE */
2173 # elif LONG_DOUBLESIZE == 12
2174 # define LDBL_DIG 18 /* gcc? */
2175 # elif LONG_DOUBLESIZE == 16
2176 # define LDBL_DIG 33 /* assume IEEE */
2177 # elif LONG_DOUBLESIZE == DOUBLESIZE
2178 # define LDBL_DIG DBL_DIG /* bummer */
2182 /* On MS Windows,with 64-bit mingw-w64 compilers, we
2183 need to attend to a __float128 alignment issue if
2184 USE_QUADMATH is defined. Otherwise we simply:
2186 32-bit mingw.org compilers might also require
2187 aligned(32) - at least that's what I found with my
2188 Math::Foat128 module. But this is as yet untested
2189 here, so no allowance is being made for mingw.org
2190 compilers at this stage. -- sisyphus January 2021
2192 #if defined(USE_QUADMATH) && defined(__MINGW64__)
2193 /* 64-bit build, mingw-w64 compiler only */
2194 typedef NVTYPE NV __attribute__ ((aligned(8)));
2200 # include <ieeefp.h>
2203 #if defined(__DECC) && defined(__osf__)
2204 /* Also Tru64 cc has broken NaN comparisons. */
2205 # define NAN_COMPARE_BROKEN
2208 # define NAN_COMPARE_BROKEN
2211 #ifdef USE_LONG_DOUBLE
2213 # include <sunmath.h>
2215 # if defined(LDBL_DIG)
2216 # define NV_DIG LDBL_DIG
2217 # ifdef LDBL_MANT_DIG
2218 # define NV_MANT_DIG LDBL_MANT_DIG
2221 # define NV_MIN LDBL_MIN
2224 # define NV_MAX LDBL_MAX
2226 # ifdef LDBL_MIN_EXP
2227 # define NV_MIN_EXP LDBL_MIN_EXP
2229 # ifdef LDBL_MAX_EXP
2230 # define NV_MAX_EXP LDBL_MAX_EXP
2232 # ifdef LDBL_MIN_10_EXP
2233 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2235 # ifdef LDBL_MAX_10_EXP
2236 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2238 # ifdef LDBL_EPSILON
2239 # define NV_EPSILON LDBL_EPSILON
2242 # define NV_MAX LDBL_MAX
2243 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2244 # elif defined(HUGE_VALL)
2245 # define NV_MAX HUGE_VALL
2248 # if defined(HAS_SQRTL)
2249 # define Perl_acos acosl
2250 # define Perl_asin asinl
2251 # define Perl_atan atanl
2252 # define Perl_atan2 atan2l
2253 # define Perl_ceil ceill
2254 # define Perl_cos cosl
2255 # define Perl_cosh coshl
2256 # define Perl_exp expl
2257 /* no Perl_fabs, but there's PERL_ABS */
2258 # define Perl_floor floorl
2259 # define Perl_fmod fmodl
2260 # define Perl_log logl
2261 # define Perl_log10 log10l
2262 # define Perl_pow powl
2263 # define Perl_sin sinl
2264 # define Perl_sinh sinhl
2265 # define Perl_sqrt sqrtl
2266 # define Perl_tan tanl
2267 # define Perl_tanh tanhl
2269 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2272 # define Perl_modf(x,y) modfl(x,y)
2273 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2274 prototype in <math.h> */
2275 # ifndef HAS_MODFL_PROTO
2276 EXTERN_C long double modfl(long double, long double *);
2278 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2279 extern long double Perl_my_modfl(long double x, long double *ip);
2280 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2285 # define Perl_frexp(x,y) frexpl(x,y)
2286 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2287 extern long double Perl_my_frexpl(long double x, int *e);
2288 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2293 # define Perl_ldexp(x, y) ldexpl(x,y)
2294 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2295 # define Perl_ldexp(x,y) scalbnl(x,y)
2299 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2300 # define Perl_isnan(x) isnanl(x)
2301 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2302 # define Perl_isnan(x) isnan(x)
2306 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2307 # define Perl_isinf(x) isinfl(x)
2308 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2309 # define Perl_isinf(x) isinf(x)
2310 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2311 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2314 # ifndef Perl_isfinite
2315 # define Perl_isfinite(x) Perl_isfinitel(x)
2317 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2318 # include <quadmath.h>
2319 # define NV_DIG FLT128_DIG
2320 # define NV_MANT_DIG FLT128_MANT_DIG
2321 # define NV_MIN FLT128_MIN
2322 # define NV_MAX FLT128_MAX
2323 # define NV_MIN_EXP FLT128_MIN_EXP
2324 # define NV_MAX_EXP FLT128_MAX_EXP
2325 # define NV_EPSILON FLT128_EPSILON
2326 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2327 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2328 # define Perl_acos acosq
2329 # define Perl_asin asinq
2330 # define Perl_atan atanq
2331 # define Perl_atan2 atan2q
2332 # define Perl_ceil ceilq
2333 # define Perl_cos cosq
2334 # define Perl_cosh coshq
2335 # define Perl_exp expq
2336 /* no Perl_fabs, but there's PERL_ABS */
2337 # define Perl_floor floorq
2338 # define Perl_fmod fmodq
2339 # define Perl_log logq
2340 # define Perl_log10 log10q
2341 # define Perl_signbit signbitq
2342 # define Perl_pow powq
2343 # define Perl_sin sinq
2344 # define Perl_sinh sinhq
2345 # define Perl_sqrt sqrtq
2346 # define Perl_tan tanq
2347 # define Perl_tanh tanhq
2348 # define Perl_modf(x,y) modfq(x,y)
2349 # define Perl_frexp(x,y) frexpq(x,y)
2350 # define Perl_ldexp(x, y) ldexpq(x,y)
2351 # define Perl_isinf(x) isinfq(x)
2352 # define Perl_isnan(x) isnanq(x)
2353 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2354 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2355 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2356 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2357 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2358 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2359 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2361 # define NV_DIG DBL_DIG
2362 # define NV_MANT_DIG DBL_MANT_DIG
2363 # define NV_MIN DBL_MIN
2364 # define NV_MAX DBL_MAX
2365 # define NV_MIN_EXP DBL_MIN_EXP
2366 # define NV_MAX_EXP DBL_MAX_EXP
2367 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2368 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2369 # define NV_EPSILON DBL_EPSILON
2370 # define NV_MAX DBL_MAX
2371 # define NV_MIN DBL_MIN
2373 /* These math interfaces are C89. */
2374 # define Perl_acos acos
2375 # define Perl_asin asin
2376 # define Perl_atan atan
2377 # define Perl_atan2 atan2
2378 # define Perl_ceil ceil
2379 # define Perl_cos cos
2380 # define Perl_cosh cosh
2381 # define Perl_exp exp
2382 /* no Perl_fabs, but there's PERL_ABS */
2383 # define Perl_floor floor
2384 # define Perl_fmod fmod
2385 # define Perl_log log
2386 # define Perl_log10 log10
2387 # define Perl_pow pow
2388 # define Perl_sin sin
2389 # define Perl_sinh sinh
2390 # define Perl_sqrt sqrt
2391 # define Perl_tan tan
2392 # define Perl_tanh tanh
2394 # define Perl_modf(x,y) modf(x,y)
2395 # define Perl_frexp(x,y) frexp(x,y)
2396 # define Perl_ldexp(x,y) ldexp(x,y)
2400 # define Perl_isnan(x) isnan(x)
2404 # if defined(HAS_ISINF)
2405 # define Perl_isinf(x) isinf(x)
2406 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2407 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2410 # ifndef Perl_isfinite
2411 # ifdef HAS_ISFINITE
2412 # define Perl_isfinite(x) isfinite(x)
2413 # elif defined(HAS_FINITE)
2414 # define Perl_isfinite(x) finite(x)
2419 /* fpclassify(): C99. It is supposed to be a macro that switches on
2420 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2421 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2423 # if defined(FP_INFINITE) && defined(FP_NAN)
2424 # define Perl_fp_class(x) fpclassify(x)
2425 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2426 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2427 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2428 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2429 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2430 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2431 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2432 * actually not the C99 fpclassify, with its own set of return defines. */
2433 # define Perl_fp_class(x) fpclassify(x)
2434 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2435 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2436 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2437 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2438 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2439 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2440 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2441 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2442 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2443 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2445 # undef Perl_fp_class /* Unknown set of defines */
2449 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2450 * are identical to the C99 fpclassify(). */
2451 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2454 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2456 /* oh, and the isnormal macro has a typo in it! */
2458 # define isnormal(x) Perl_fp_class_norm(x)
2460 # if defined(FP_INFINITE) && defined(FP_NAN)
2461 # define Perl_fp_class(x) fp_classify(x)
2462 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2463 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2464 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2465 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2466 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2468 # undef Perl_fp_class /* Unknown set of defines */
2472 /* Feel free to check with me for the SGI manpages, SGI testing,
2473 * etcetera, if you want to try getting this to work with IRIX.
2475 * - Allen <allens@cpan.org> */
2477 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2478 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2479 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2480 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2481 * Define some symbols also as cpp symbols so we can detect them. */
2482 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2483 # define FP_PINF FP_PINF
2484 # define FP_QNAN FP_QNAN
2488 # include <ieeefp.h>
2493 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2494 # define Perl_fp_class(x) fpclassl(x)
2496 # define Perl_fp_class(x) fpclass(x)
2498 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2499 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2500 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2501 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2502 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2503 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2504 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2505 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2506 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2507 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2508 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2509 # elif defined(FP_PINF) && defined(FP_QNAN)
2510 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2511 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2512 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2513 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2514 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2515 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2516 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2517 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2518 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2519 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2521 # undef Perl_fp_class /* Unknown set of defines */
2525 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2526 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2528 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2529 # include <fp_class.h>
2531 # if defined(FP_POS_INF) && defined(FP_QNAN)
2532 # ifdef __sgi /* XXX Configure test instead */
2533 # ifdef USE_LONG_DOUBLE
2534 # define Perl_fp_class(x) fp_class_l(x)
2536 # define Perl_fp_class(x) fp_class_d(x)
2539 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2540 # define Perl_fp_class(x) fp_classl(x)
2542 # define Perl_fp_class(x) fp_class(x)
2545 # if defined(FP_POS_INF) && defined(FP_QNAN)
2546 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2547 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2548 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2549 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2550 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2551 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2552 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2553 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2554 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2555 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2557 # undef Perl_fp_class /* Unknown set of defines */
2562 /* class(), _class(): Legacy: AIX. */
2563 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2565 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2567 # define Perl_fp_class(x) class(x)
2569 # define Perl_fp_class(x) _class(x)
2571 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2572 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2573 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2574 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2575 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2576 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2577 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2578 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2579 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2580 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2581 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2583 # undef Perl_fp_class /* Unknown set of defines */
2588 /* Win32: _fpclass(), _isnan(), _finite(). */
2591 # define Perl_isnan(x) _isnan(x)
2593 # ifndef Perl_isfinite
2594 # define Perl_isfinite(x) _finite(x)
2596 # ifndef Perl_fp_class_snan
2597 /* No simple way to #define Perl_fp_class because _fpclass()
2598 * returns a set of bits. */
2599 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2600 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2601 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2602 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)
2603 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)
2604 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2605 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2606 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2607 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2608 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2609 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2610 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2611 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2612 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2613 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2617 #if !defined(Perl_fp_class_inf) && \
2618 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2619 # define Perl_fp_class_inf(x) \
2620 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2623 #if !defined(Perl_fp_class_nan) && \
2624 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2625 # define Perl_fp_class_nan(x) \
2626 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2629 #if !defined(Perl_fp_class_zero) && \
2630 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2631 # define Perl_fp_class_zero(x) \
2632 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2635 #if !defined(Perl_fp_class_norm) && \
2636 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2637 # define Perl_fp_class_norm(x) \
2638 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2641 #if !defined(Perl_fp_class_denorm) && \
2642 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2643 # define Perl_fp_class_denorm(x) \
2644 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2648 # ifdef Perl_fp_class_nan
2649 # define Perl_isnan(x) Perl_fp_class_nan(x)
2650 # elif defined(HAS_UNORDERED)
2651 # define Perl_isnan(x) unordered((x), 0.0)
2653 # define Perl_isnan(x) ((x)!=(x))
2658 # ifdef Perl_fp_class_inf
2659 # define Perl_isinf(x) Perl_fp_class_inf(x)
2663 #ifndef Perl_isfinite
2664 # if defined(HAS_ISFINITE) && !defined(isfinite)
2665 # define Perl_isfinite(x) isfinite((double)(x))
2666 # elif defined(HAS_FINITE)
2667 # define Perl_isfinite(x) finite((double)(x))
2668 # elif defined(Perl_fp_class_finite)
2669 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2671 /* For the infinities the multiplication returns nan,
2672 * for the nan the multiplication also returns nan,
2673 * for everything else (that is, finite) zero should be returned. */
2674 # define Perl_isfinite(x) (((x) * 0) == 0)
2679 # if defined(Perl_isfinite) && defined(Perl_isnan)
2680 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2684 /* We need Perl_isfinitel (ends with ell) (if available) even when
2685 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2687 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2688 /* If isfinite() is a macro and looks like we have C99,
2689 * we assume it's the type-aware C99 isfinite(). */
2690 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2691 # define Perl_isfinitel(x) isfinite(x)
2692 # elif defined(HAS_ISFINITEL)
2693 # define Perl_isfinitel(x) isfinitel(x)
2694 # elif defined(HAS_FINITEL)
2695 # define Perl_isfinitel(x) finitel(x)
2696 # elif defined(HAS_ISINFL) && defined(HAS_ISNANL)
2697 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2699 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2703 /* The default is to use Perl's own atof() implementation (in numeric.c).
2704 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2705 * it is however best to use the native implementation of atof.
2706 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2707 * Some good tests to try out with either setting are t/base/num.t,
2708 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2709 * you may need to be using a different function than atof! */
2711 #ifndef USE_PERL_ATOF
2713 # define USE_PERL_ATOF
2716 # if USE_PERL_ATOF == 0
2717 # undef USE_PERL_ATOF
2721 #ifdef USE_PERL_ATOF
2722 # define Perl_atof(s) Perl_my_atof(s)
2723 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2725 # define Perl_atof(s) (NV)atof(s)
2726 # define Perl_atof2(s, n) ((n) = atof(s))
2728 #define my_atof2(a,b) my_atof3(a,b,0)
2731 =for apidoc_section $numeric
2732 =for apidoc AmT|NV|Perl_acos|NV x
2733 =for apidoc_item |NV|Perl_asin|NV x
2734 =for apidoc_item |NV|Perl_atan|NV x
2735 =for apidoc_item |NV|Perl_atan2|NV x|NV y
2736 =for apidoc_item |NV|Perl_ceil|NV x
2737 =for apidoc_item |NV|Perl_cos|NV x
2738 =for apidoc_item |NV|Perl_cosh|NV x
2739 =for apidoc_item |NV|Perl_exp|NV x
2740 =for apidoc_item |NV|Perl_floor|NV x
2741 =for apidoc_item |NV|Perl_fmod|NV x|NV y
2742 =for apidoc_item |NV|Perl_frexp|NV x|int *exp
2743 =for apidoc_item |IV|Perl_isfinite|NV x
2744 =for apidoc_item |IV|Perl_isinf|NV x
2745 =for apidoc_item |IV|Perl_isnan|NV x
2746 =for apidoc_item |NV|Perl_ldexp|NV x|int exp
2747 =for apidoc_item |NV|Perl_log|NV x
2748 =for apidoc_item |NV|Perl_log10|NV x
2749 =for apidoc_item |NV|Perl_modf|NV x|NV *iptr
2750 =for apidoc_item |NV|Perl_pow|NV x|NV y
2751 =for apidoc_item |NV|Perl_sin|NV x
2752 =for apidoc_item |NV|Perl_sinh|NV x
2753 =for apidoc_item |NV|Perl_sqrt|NV x
2754 =for apidoc_item |NV|Perl_tan|NV x
2755 =for apidoc_item |NV|Perl_tanh|NV x
2757 These perform the corresponding mathematical operation on the operand(s), using
2758 the libc function designed for the task that has just enough precision for an
2759 NV on this platform. If no such function with sufficient precision exists,
2760 the highest precision one available is used.
2766 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2767 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2768 * depending on local options. Until Configure detects this (or at least
2769 * detects whether the "signed" keyword is available) the CHAR ranges
2770 * will not be included. UCHAR functions normally.
2774 #define PERL_UCHAR_MIN ((unsigned char)0)
2775 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2777 #define PERL_USHORT_MIN ((unsigned short)0)
2778 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2780 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2781 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2783 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2784 #define PERL_UINT_MIN ((unsigned int)0)
2786 #define PERL_INT_MAX ((int)INT_MAX)
2787 #define PERL_INT_MIN ((int)INT_MIN)
2789 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2790 #define PERL_ULONG_MIN ((unsigned long)0L)
2792 #define PERL_LONG_MAX ((long)LONG_MAX)
2793 #define PERL_LONG_MIN ((long)LONG_MIN)
2796 # define PERL_UQUAD_MAX (~(UV)0)
2797 # define PERL_UQUAD_MIN ((UV)0)
2798 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2799 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2803 =for apidoc_section $integer
2805 =for apidoc AmnU||PERL_INT_MAX
2806 =for apidoc_item ||PERL_INT_MIN
2807 =for apidoc_item ||PERL_LONG_MAX
2808 =for apidoc_item ||PERL_LONG_MIN
2809 =for apidoc_item ||PERL_SHORT_MAX
2810 =for apidoc_item ||PERL_SHORT_MIN
2811 =for apidoc_item ||PERL_UCHAR_MAX
2812 =for apidoc_item ||PERL_UCHAR_MIN
2813 =for apidoc_item ||PERL_UINT_MAX
2814 =for apidoc_item ||PERL_UINT_MIN
2815 =for apidoc_item ||PERL_ULONG_MAX
2816 =for apidoc_item ||PERL_ULONG_MIN
2817 =for apidoc_item ||PERL_USHORT_MAX
2818 =for apidoc_item ||PERL_USHORT_MIN
2819 =for apidoc_item ||PERL_QUAD_MAX
2820 =for apidoc_item ||PERL_QUAD_MIN
2821 =for apidoc_item ||PERL_UQUAD_MAX
2822 =for apidoc_item ||PERL_UQUAD_MIN
2824 These give the largest and smallest number representable in the current
2825 platform in variables of the corresponding types.
2827 For signed types, the smallest representable number is the most negative
2828 number, the one furthest away from zero.
2830 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2831 are available to the C code. But these constants, furnished by Perl,
2832 allow code compiled on earlier compilers to portably have access to the same
2839 typedef MEM_SIZE STRLEN;
2841 typedef struct op OP;
2842 typedef struct cop COP;
2843 typedef struct unop UNOP;
2844 typedef struct unop_aux UNOP_AUX;
2845 typedef struct binop BINOP;
2846 typedef struct listop LISTOP;
2847 typedef struct logop LOGOP;
2848 typedef struct pmop PMOP;
2849 typedef struct svop SVOP;
2850 typedef struct padop PADOP;
2851 typedef struct pvop PVOP;
2852 typedef struct loop LOOP;
2853 typedef struct methop METHOP;
2856 typedef struct opslab OPSLAB;
2857 typedef struct opslot OPSLOT;
2860 typedef struct block_hooks BHK;
2861 typedef struct custom_op XOP;
2863 typedef struct interpreter PerlInterpreter;
2865 /* SGI's <sys/sema.h> has struct sv */
2867 # define STRUCT_SV perl_sv
2869 # define STRUCT_SV sv
2871 typedef struct STRUCT_SV SV;
2872 typedef struct av AV;
2873 typedef struct hv HV;
2874 typedef struct cv CV;
2875 typedef struct p5rx REGEXP;
2876 typedef struct gp GP;
2877 typedef struct gv GV;
2878 typedef struct io IO;
2879 typedef struct context PERL_CONTEXT;
2880 typedef struct block BLOCK;
2881 typedef struct invlist INVLIST;
2883 typedef struct magic MAGIC;
2884 typedef struct xpv XPV;
2885 typedef struct xpviv XPVIV;
2886 typedef struct xpvuv XPVUV;
2887 typedef struct xpvnv XPVNV;
2888 typedef struct xpvmg XPVMG;
2889 typedef struct xpvlv XPVLV;
2890 typedef struct xpvinvlist XINVLIST;
2891 typedef struct xpvav XPVAV;
2892 typedef struct xpvhv XPVHV;
2893 typedef struct xpvgv XPVGV;
2894 typedef struct xpvcv XPVCV;
2895 typedef struct xpvbm XPVBM;
2896 typedef struct xpvfm XPVFM;
2897 typedef struct xpvio XPVIO;
2898 typedef struct mgvtbl MGVTBL;
2899 typedef union any ANY;
2900 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2901 typedef struct ptr_tbl PTR_TBL_t;
2902 typedef struct clone_params CLONE_PARAMS;
2904 /* a pad is currently just an AV; but that might change,
2905 * so hide the type. */
2906 typedef struct padlist PADLIST;
2908 typedef struct padnamelist PADNAMELIST;
2909 typedef struct padname PADNAME;
2911 /* always enable PERL_OP_PARENT */
2912 #if !defined(PERL_OP_PARENT)
2913 # define PERL_OP_PARENT
2916 /* enable PERL_COPY_ON_WRITE by default */
2917 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2918 # define PERL_COPY_ON_WRITE
2921 #ifdef PERL_COPY_ON_WRITE
2922 # define PERL_ANY_COW
2924 # define PERL_SAWAMPERSAND
2927 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2928 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2932 #include "charclass_invlists.h"
2934 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2935 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2936 # define USE_64_BIT_RAWIO /* implicit */
2940 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2941 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2942 * however, because operating systems like to do that themself. */
2945 # define FSEEKSIZE LSEEKSIZE
2947 # define FSEEKSIZE LONGSIZE
2951 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2952 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2953 # define USE_64_BIT_STDIO /* implicit */
2957 #ifdef USE_64_BIT_RAWIO
2960 # define Off_t off64_t
2962 # define LSEEKSIZE 8
2964 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2965 * will trigger defines like the ones below. Some 64-bit environments,
2966 * however, do not. Therefore we have to explicitly mix and match. */
2967 # if defined(USE_OPEN64)
2968 # define open open64
2970 # if defined(USE_LSEEK64)
2971 # define lseek lseek64
2973 # if defined(USE_LLSEEK)
2974 # define lseek llseek
2977 # if defined(USE_STAT64)
2978 # define stat stat64
2980 # if defined(USE_FSTAT64)
2981 # define fstat fstat64
2983 # if defined(USE_LSTAT64)
2984 # define lstat lstat64
2986 # if defined(USE_FLOCK64)
2987 # define flock flock64
2989 # if defined(USE_LOCKF64)
2990 # define lockf lockf64
2992 # if defined(USE_FCNTL64)
2993 # define fcntl fcntl64
2995 # if defined(USE_TRUNCATE64)
2996 # define truncate truncate64
2998 # if defined(USE_FTRUNCATE64)
2999 # define ftruncate ftruncate64
3003 #ifdef USE_64_BIT_STDIO
3004 # ifdef HAS_FPOS64_T
3006 # define Fpos_t fpos64_t
3008 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
3009 * will trigger defines like the ones below. Some 64-bit environments,
3010 * however, do not. */
3011 # if defined(USE_FOPEN64)
3012 # define fopen fopen64
3014 # if defined(USE_FSEEK64)
3015 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
3017 # if defined(USE_FTELL64)
3018 # define ftell ftell64 /* don't do ftello here, see perlio.c */
3020 # if defined(USE_FSETPOS64)
3021 # define fsetpos fsetpos64
3023 # if defined(USE_FGETPOS64)
3024 # define fgetpos fgetpos64
3026 # if defined(USE_TMPFILE64)
3027 # define tmpfile tmpfile64
3029 # if defined(USE_FREOPEN64)
3030 # define freopen freopen64
3035 # include "iperlsys.h"
3040 # include "os2ish.h"
3042 # include "dosish.h"
3045 # include "vmsish.h"
3046 #elif defined(PLAN9)
3047 # include "./plan9/plan9ish.h"
3048 #elif defined(__VOS__)
3050 # include "./vos/vosish.h"
3052 # include "vos/vosish.h"
3054 #elif defined(__HAIKU__)
3055 # include "haiku/haikuish.h"
3057 # include "unixish.h"
3061 # include "amigaos.h"
3062 # undef FD_CLOEXEC /* a lie in AmigaOS */
3065 /* NSIG logic from Configure --> */
3068 # define NSIG (_NSIG)
3069 # elif defined(SIGMAX)
3070 # define NSIG (SIGMAX+1)
3071 # elif defined(SIG_MAX)
3072 # define NSIG (SIG_MAX+1)
3073 # elif defined(_SIG_MAX)
3074 # define NSIG (_SIG_MAX+1)
3075 # elif defined(MAXSIG)
3076 # define NSIG (MAXSIG+1)
3077 # elif defined(MAX_SIG)
3078 # define NSIG (MAX_SIG+1)
3079 # elif defined(SIGARRAYSIZE)
3080 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
3081 # elif defined(_sys_nsig)
3082 # define NSIG (_sys_nsig) /* Solaris 2.5 */
3084 /* Default to some arbitrary number that's big enough to get most
3085 * of the common signals. */
3089 /* <-- NSIG logic from Configure */
3091 #ifndef NO_ENVIRON_ARRAY
3092 # define USE_ENVIRON_ARRAY
3095 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3096 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
3097 * signal handlers. But the perl core itself only fully supports 1-arg
3098 * handlers, so don't enable for now.
3099 * NB: POSIX::sigaction() supports both.
3101 * # define PERL_USE_3ARG_SIGHANDLER
3106 * This is an alias for the OS's siginfo_t, except that where the OS
3107 * doesn't support it, declare a dummy version instead. This allows us to
3108 * have signal handler functions which always have a Siginfo_t parameter
3109 * regardless of platform, (and which will just be passed a NULL value
3110 * where the OS doesn't support HAS_SIGACTION).
3113 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3114 typedef siginfo_t Siginfo_t;
3116 #ifdef si_signo /* minix */
3126 * initialise to avoid floating-point exceptions from overflow, etc
3128 #ifndef PERL_FPU_INIT
3129 # ifdef HAS_FPSETMASK
3130 # if HAS_FLOATINGPOINT_H
3131 # include <floatingpoint.h>
3133 /* Some operating systems have this as a macro, which in turn expands to a comma
3134 expression, and the last sub-expression is something that gets calculated,
3135 and then they have the gall to warn that a value computed is not used. Hence
3137 # define PERL_FPU_INIT (void)fpsetmask(0)
3138 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3139 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3140 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3141 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3143 # define PERL_FPU_INIT
3146 #ifndef PERL_FPU_PRE_EXEC
3147 # define PERL_FPU_PRE_EXEC {
3148 # define PERL_FPU_POST_EXEC }
3151 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3152 * We need to reenable the "invalid" trap because otherwise generation
3153 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3154 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3156 # include <machine/fpu.h>
3157 # define PERL_SYS_FPU_INIT \
3159 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3160 signal(SIGFPE, SIG_IGN); \
3163 /* In IRIX the default for Flush to Zero bit is true,
3164 * which means that results going below the minimum of normal
3165 * floating points go to zero, instead of going denormal/subnormal.
3166 * This is unlike almost any other system running Perl, so let's clear it.
3167 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3168 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3170 * XXX The flush-to-zero behaviour should be a Configure scan.
3171 * To change the behaviour usually requires some system-specific
3172 * incantation, though, like the below. */
3174 # include <sys/fpu.h>
3175 # define PERL_SYS_FPU_INIT \
3177 union fpc_csr csr; \
3178 csr.fc_word = get_fpc_csr(); \
3179 csr.fc_struct.flush = 0; \
3180 set_fpc_csr(csr.fc_word); \
3184 #ifndef PERL_SYS_FPU_INIT
3185 # define PERL_SYS_FPU_INIT NOOP
3188 #ifndef PERL_SYS_INIT3_BODY
3189 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3193 =for apidoc_section $embedding
3195 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3196 Provides system-specific tune up of the C runtime environment necessary to
3197 run Perl interpreters. This should be called only once, before creating
3198 any Perl interpreters.
3200 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3201 Provides system-specific tune up of the C runtime environment necessary to
3202 run Perl interpreters. This should be called only once, before creating
3203 any Perl interpreters.
3205 =for apidoc Am|void|PERL_SYS_TERM|
3206 Provides system-specific clean up of the C runtime environment after
3207 running Perl interpreters. This should be called only once, after
3208 freeing any remaining Perl interpreters.
3213 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3214 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3215 #define PERL_SYS_TERM() Perl_sys_term()
3217 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3218 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3223 # ifdef _POSIX_PATH_MAX
3224 # if PATH_MAX > _POSIX_PATH_MAX
3225 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3226 * included the null byte or not. Later amendments of POSIX,
3227 * XPG4, the Austin Group, and the Single UNIX Specification
3228 * all explicitly include the null byte in the PATH_MAX.
3229 * Ditto for _POSIX_PATH_MAX. */
3230 # define MAXPATHLEN PATH_MAX
3232 # define MAXPATHLEN _POSIX_PATH_MAX
3235 # define MAXPATHLEN (PATH_MAX+1)
3238 # define MAXPATHLEN 1024 /* Err on the large side. */
3242 /* clang Thread Safety Analysis/Annotations/Attributes
3243 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3245 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3246 * Apple XCode hijacks __clang_major__ and __clang_minor__
3247 * (6.1 means really clang 3.6), so needs extra hijinks
3248 * (could probably also test the contents of __apple_build_version__).
3250 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3251 defined(__clang__) && \
3253 ((!defined(__apple_build_version__) && \
3254 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3255 (__clang_major__ >= 4))) || \
3256 (defined(__apple_build_version__) && \
3257 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3258 (__clang_major__ >= 7))))
3259 # define PERL_TSA__(x) __attribute__((x))
3260 # define PERL_TSA_ACTIVE
3262 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3263 # undef PERL_TSA_ACTIVE
3266 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3267 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3269 #define PERL_TSA_CAPABILITY(x) \
3270 PERL_TSA__(capability(x))
3272 /* In the below examples the mutex must be lexically visible, usually
3273 * either as global variables, or as function arguments. */
3275 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3277 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3279 #define PERL_TSA_GUARDED_BY(x) \
3280 PERL_TSA__(guarded_by(x))
3282 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3283 * The data _behind_ the pointer is guarded.
3285 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3287 #define PERL_TSA_PT_GUARDED_BY(x) \
3288 PERL_TSA__(pt_guarded_by(x))
3290 /* PERL_TSA_REQUIRES() is used to annotate functions.
3291 * The caller MUST hold the resource when calling the function.
3293 * void Foo() PERL_TSA_REQUIRES(mutex);
3295 #define PERL_TSA_REQUIRES(x) \
3296 PERL_TSA__(requires_capability(x))
3298 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3299 * The caller MUST NOT hold resource when calling the function.
3301 * EXCLUDES should be used when the function first acquires
3302 * the resource and then releases it. Use to avoid deadlock.
3304 * void Foo() PERL_TSA_EXCLUDES(mutex);
3306 #define PERL_TSA_EXCLUDES(x) \
3307 PERL_TSA__(locks_excluded(x))
3309 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3310 * The caller MUST NOT hold the resource when calling the function,
3311 * and the function will acquire the resource.
3313 * void Foo() PERL_TSA_ACQUIRE(mutex);
3315 #define PERL_TSA_ACQUIRE(x) \
3316 PERL_TSA__(acquire_capability(x))
3318 /* PERL_TSA_RELEASE() is used to annotate functions.
3319 * The caller MUST hold the resource when calling the function,
3320 * and the function will release the resource.
3322 * void Foo() PERL_TSA_RELEASE(mutex);
3324 #define PERL_TSA_RELEASE(x) \
3325 PERL_TSA__(release_capability(x))
3327 /* PERL_TSA_NO_TSA is used to annotate functions.
3328 * Used when being intentionally unsafe, or when the code is too
3329 * complicated for the analysis. Use sparingly.
3331 * void Foo() PERL_TSA_NO_TSA;
3333 #define PERL_TSA_NO_TSA \
3334 PERL_TSA__(no_thread_safety_analysis)
3336 /* There are more annotations/attributes available, see the clang
3337 * documentation for details. */
3339 #if defined(USE_ITHREADS)
3341 # include <nw5thread.h>
3342 # elif defined(WIN32)
3343 # include <win32thread.h>
3345 # include "os2thread.h"
3346 # elif defined(I_MACH_CTHREADS)
3347 # include <mach/cthreads.h>
3348 typedef cthread_t perl_os_thread;
3349 typedef mutex_t perl_mutex;
3350 typedef condition_t perl_cond;
3351 typedef void * perl_key;
3352 # elif defined(I_PTHREAD) /* Posix threads */
3353 # include <pthread.h>
3354 typedef pthread_t perl_os_thread;
3355 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3356 typedef pthread_cond_t perl_cond;
3357 typedef pthread_key_t perl_key;
3360 /* Many readers; single writer */
3364 SSize_t readers_count;
3365 } perl_RnW1_mutex_t;
3368 #endif /* USE_ITHREADS */
3370 #ifdef PERL_TSA_ACTIVE
3371 /* Since most pthread mutex interfaces have not been annotated, we
3372 * need to have these wrappers. The NO_TSA annotation is quite ugly
3373 * but it cannot be avoided in plain C, unlike in C++, where one could
3374 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3376 * The bodies of these wrappers are in util.c
3378 * TODO: however, some platforms are starting to get these clang
3379 * thread safety annotations for pthreads, for example FreeBSD.
3380 * Do we need a way to a bypass these wrappers? */
3381 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3382 PERL_TSA_ACQUIRE(*mutex)
3384 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3385 PERL_TSA_RELEASE(*mutex)
3394 # include "netware.h"
3397 #define STATUS_UNIX PL_statusvalue
3399 # define STATUS_NATIVE PL_statusvalue_vms
3401 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3402 * its contents can not be trusted. Unfortunately, Perl seems to check
3403 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3406 # include <stsdef.h>
3408 /* Presume this because if VMS changes it, it will require a new
3409 * set of APIs for waiting on children for binary compatibility.
3411 # define child_offset_bits (8)
3412 # ifndef C_FAC_POSIX
3413 # define C_FAC_POSIX 0x35A000
3416 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3417 * platform from the existing UNIX or Native status values.
3420 # define STATUS_EXIT \
3421 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3422 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3425 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3426 * exit code and shifts the UNIX value over the correct number of bits to
3427 * be a child status. Usually the number of bits is 8, but that could be
3428 * platform dependent. The NATIVE status code is presumed to have either
3429 * from a child process.
3432 /* This is complicated. The child processes return a true native VMS
3433 status which must be saved. But there is an assumption in Perl that
3434 the UNIX child status has some relationship to errno values, so
3435 Perl tries to translate it to text in some of the tests.
3436 In order to get the string translation correct, for the error, errno
3437 must be EVMSERR, but that generates a different text message
3438 than what the test programs are expecting. So an errno value must
3439 be derived from the native status value when an error occurs.
3440 That will hide the true native status message. With this version of
3441 perl, the true native child status can always be retrieved so that
3442 is not a problem. But in this case, Pl_statusvalue and errno may
3443 have different values in them.
3446 # define STATUS_NATIVE_CHILD_SET(n) \
3448 I32 evalue = (I32)n; \
3449 if (evalue == EVMSERR) { \
3450 PL_statusvalue_vms = vaxc$errno; \
3451 PL_statusvalue = evalue; \
3453 PL_statusvalue_vms = evalue; \
3454 if (evalue == -1) { \
3455 PL_statusvalue = -1; \
3456 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3458 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3459 set_vaxc_errno(evalue); \
3460 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3461 set_errno(EVMSERR); \
3462 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3463 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3467 # ifdef VMSISH_STATUS
3468 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3470 # define STATUS_CURRENT STATUS_UNIX
3473 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3474 * the NATIVE status to an equivalent value. Can not be used to translate
3475 * exit code values as exit code values are not guaranteed to have any
3476 * relationship at all to errno values.
3477 * This is used when Perl is forcing errno to have a specific value.
3479 # define STATUS_UNIX_SET(n) \
3481 I32 evalue = (I32)n; \
3482 PL_statusvalue = evalue; \
3483 if (PL_statusvalue != -1) { \
3484 if (PL_statusvalue != EVMSERR) { \
3485 PL_statusvalue &= 0xFFFF; \
3486 if (MY_POSIX_EXIT) \
3487 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3488 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3491 PL_statusvalue_vms = vaxc$errno; \
3494 else PL_statusvalue_vms = SS$_ABORT; \
3495 set_vaxc_errno(PL_statusvalue_vms); \
3498 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3499 * the NATIVE error status based on it.
3501 * When in the default mode to comply with the Perl VMS documentation,
3502 * 0 is a success and any other code sets the NATIVE status to a failure
3503 * code of SS$_ABORT.
3505 * In the new POSIX EXIT mode, native status will be set so that the
3506 * actual exit code will can be retrieved by the calling program or
3509 * If the exit code is not clearly a UNIX parent or child exit status,
3510 * it will be passed through as a VMS status.
3513 # define STATUS_UNIX_EXIT_SET(n) \
3515 I32 evalue = (I32)n; \
3516 PL_statusvalue = evalue; \
3517 if (MY_POSIX_EXIT) { \
3518 if (evalue <= 0xFF00) { \
3519 if (evalue > 0xFF) \
3520 evalue = (evalue >> child_offset_bits) & 0xFF; \
3521 PL_statusvalue_vms = \
3522 (C_FAC_POSIX | (evalue << 3 ) | \
3523 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3524 } else /* forgive them Perl, for they have sinned */ \
3525 PL_statusvalue_vms = evalue; \
3528 PL_statusvalue_vms = SS$_NORMAL; \
3529 else if (evalue <= 0xFF00) \
3530 PL_statusvalue_vms = SS$_ABORT; \
3531 else { /* forgive them Perl, for they have sinned */ \
3532 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3533 else PL_statusvalue_vms = vaxc$errno; \
3534 /* And obviously used a VMS status value instead of UNIX */ \
3535 PL_statusvalue = EVMSERR; \
3537 set_vaxc_errno(PL_statusvalue_vms); \
3542 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3543 * and sets the NATIVE error status based on it. This special case
3544 * is needed to maintain compatibility with past VMS behavior.
3546 * In the default mode on VMS, this number is passed through as
3547 * both the NATIVE and UNIX status. Which makes it different
3548 * that the STATUS_UNIX_EXIT_SET.
3550 * In the new POSIX EXIT mode, native status will be set so that the
3551 * actual exit code will can be retrieved by the calling program or
3554 * A POSIX exit code is from 0 to 255. If the exit code is higher
3555 * than this, it needs to be assumed that it is a VMS exit code and
3559 # define STATUS_EXIT_SET(n) \
3561 I32 evalue = (I32)n; \
3562 PL_statusvalue = evalue; \
3563 if (MY_POSIX_EXIT) \
3564 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3565 PL_statusvalue_vms = \
3566 (C_FAC_POSIX | (evalue << 3 ) | \
3567 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3569 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3570 set_vaxc_errno(PL_statusvalue_vms); \
3574 /* This macro forces a success status */
3575 # define STATUS_ALL_SUCCESS \
3576 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3578 /* This macro forces a failure status */
3579 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3580 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3581 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3583 #elif defined(__amigaos4__)
3584 /* A somewhat experimental attempt to simulate posix return code values */
3585 # define STATUS_NATIVE PL_statusvalue_posix
3586 # define STATUS_NATIVE_CHILD_SET(n) \
3588 PL_statusvalue_posix = (n); \
3589 if (PL_statusvalue_posix < 0) { \
3590 PL_statusvalue = -1; \
3593 PL_statusvalue = n << 8; \
3596 # define STATUS_UNIX_SET(n) \
3598 PL_statusvalue = (n); \
3599 if (PL_statusvalue != -1) \
3600 PL_statusvalue &= 0xFFFF; \
3602 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3603 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3604 # define STATUS_CURRENT STATUS_UNIX
3605 # define STATUS_EXIT STATUS_UNIX
3606 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3607 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3610 # define STATUS_NATIVE PL_statusvalue_posix
3611 # if defined(WCOREDUMP)
3612 # define STATUS_NATIVE_CHILD_SET(n) \
3614 PL_statusvalue_posix = (n); \
3615 if (PL_statusvalue_posix == -1) \
3616 PL_statusvalue = -1; \
3619 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3620 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3621 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3624 # elif defined(WIFEXITED)
3625 # define STATUS_NATIVE_CHILD_SET(n) \
3627 PL_statusvalue_posix = (n); \
3628 if (PL_statusvalue_posix == -1) \
3629 PL_statusvalue = -1; \
3632 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3633 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3637 # define STATUS_NATIVE_CHILD_SET(n) \
3639 PL_statusvalue_posix = (n); \
3640 if (PL_statusvalue_posix == -1) \
3641 PL_statusvalue = -1; \
3644 PL_statusvalue_posix & 0xFFFF; \
3648 # define STATUS_UNIX_SET(n) \
3650 PL_statusvalue = (n); \
3651 if (PL_statusvalue != -1) \
3652 PL_statusvalue &= 0xFFFF; \
3654 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3655 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3656 # define STATUS_CURRENT STATUS_UNIX
3657 # define STATUS_EXIT STATUS_UNIX
3658 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3659 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3662 /* flags in PL_exit_flags for nature of exit() */
3663 #define PERL_EXIT_EXPECTED 0x01
3664 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3665 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3666 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3669 /* format to use for version numbers in file/directory names */
3670 /* XXX move to Configure? */
3671 /* This was only ever used for the current version, and that can be done at
3672 compile time, as PERL_FS_VERSION, so should we just delete it? */
3673 # ifndef PERL_FS_VER_FMT
3674 # define PERL_FS_VER_FMT "%d.%d.%d"
3678 #ifndef PERL_FS_VERSION
3679 # define PERL_FS_VERSION PERL_VERSION_STRING
3682 /* This defines a way to flush all output buffers. This may be a
3683 * performance issue, so we allow people to disable it. Also, if
3684 * we are using stdio, there are broken implementations of fflush(NULL)
3685 * out there, Solaris being the most prominent.
3687 #ifndef PERL_FLUSHALL_FOR_CHILD
3688 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3689 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3690 # elif defined(FFLUSH_ALL)
3691 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3693 # define PERL_FLUSHALL_FOR_CHILD NOOP
3697 #ifndef PERL_WAIT_FOR_CHILDREN
3698 # define PERL_WAIT_FOR_CHILDREN NOOP
3701 /* the traditional thread-unsafe notion of "current interpreter". */
3702 #ifndef PERL_SET_INTERP
3703 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3706 #ifndef PERL_GET_INTERP
3707 # define PERL_GET_INTERP (PL_curinterp)
3710 #if defined(MULTIPLICITY) && !defined(PERL_GET_THX)
3711 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3712 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3716 This replaces the previous %_ "hack" by the "%p" hacks.
3717 All that is required is that the perl source does not
3718 use "%-p" or "%-<number>p" or "%<number>p" formats.
3719 These formats will still work in perl code.
3720 See comments in sv.c for further details.
3722 Robin Barker 2005-07-14
3724 No longer use %1p for VDf = %vd. RMB 2007-10-19
3728 # define SVf_(n) "-" STRINGIFY(n) "p"
3736 # define SVf32 SVf_(32)
3740 # define SVf256 SVf_(256)
3743 #define SVfARG(p) ((void*)(p))
3749 /* Not ideal, but we cannot easily include a number in an already-numeric
3750 * format sequence. */
3752 # define HEKf256 "3p"
3755 #define HEKfARG(p) ((void*)(p))
3757 /* Documented in perlguts
3759 * %4p is a custom format
3762 # define UTF8f "d%" UVuf "%4p"
3764 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3767 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3770 /* not used; but needed for backward compatibility with XS code? - RMB
3771 =for apidoc AmnD|const char *|UVf
3773 Obsolete form of C<UVuf>, which you should convert to instead use
3782 #if !defined(DEBUGGING) && !defined(NDEBUG)
3787 /* For functions that are marked as __attribute__noreturn__, it's not
3788 appropriate to call return. In either case, include the lint directive.
3790 #ifdef HASATTRIBUTE_NORETURN
3791 # define NORETURN_FUNCTION_END NOT_REACHED;
3793 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3796 #ifdef HAS_BUILTIN_EXPECT
3797 # define EXPECT(expr,val) __builtin_expect(expr,val)
3799 # define EXPECT(expr,val) (expr)
3803 =for apidoc_section $directives
3805 =for apidoc Am||LIKELY|bool expr
3807 Returns the input unchanged, but at the same time it gives a branch prediction
3808 hint to the compiler that this condition is likely to be true.
3810 =for apidoc Am||UNLIKELY|bool expr
3812 Returns the input unchanged, but at the same time it gives a branch prediction
3813 hint to the compiler that this condition is likely to be false.
3817 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3818 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3820 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3824 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3825 time invariants. That is, their argument must be a constant expression that
3826 can be verified by the compiler. This expression can contain anything that's
3827 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3828 the expression evaluates to 0, compilation fails.
3829 Because they generate no runtime code (i.e. their use is "free"), they're
3830 always active, even under non-DEBUGGING builds.
3831 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3832 file scope (outside of any function).
3833 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3836 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3837 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3838 || (__STDC_VERSION__ - 0) >= 201101L)) \
3839 || (defined(__cplusplus) && __cplusplus >= 201103L))
3840 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3841 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3842 matter what <assert.h> says.
3844 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3846 /* We use a bit-field instead of an array because gcc accepts
3847 'typedef char x[n]' where n is not a compile-time constant.
3848 We want to enforce constantness.
3850 # define STATIC_ASSERT_2(COND, SUFFIX) \
3852 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3853 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3854 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3855 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3857 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3858 error (static_assert is a declaration, and only statements can have labels).
3860 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3862 #ifndef __has_builtin
3863 # define __has_builtin(x) 0 /* not a clang style compiler */
3867 =for apidoc Am||ASSUME|bool expr
3868 C<ASSUME> is like C<assert()>, but it has a benefit in a release build. It is a
3869 hint to a compiler about a statement of fact in a function call free
3870 expression, which allows the compiler to generate better machine code. In a
3871 debug build, C<ASSUME(x)> is a synonym for C<assert(x)>. C<ASSUME(0)> means the
3872 control path is unreachable. In a for loop, C<ASSUME> can be used to hint that
3873 a loop will run at least X times. C<ASSUME> is based off MSVC's C<__assume>
3874 intrinsic function, see its documents for more details.
3879 #if __has_builtin(__builtin_unreachable)
3880 # define HAS_BUILTIN_UNREACHABLE
3881 #elif (defined(__GNUC__) && ( __GNUC__ > 4 \
3882 || __GNUC__ == 4 && __GNUC_MINOR__ >= 5))
3883 # define HAS_BUILTIN_UNREACHABLE
3887 # define ASSUME(x) assert(x)
3888 #elif defined(_MSC_VER)
3889 # define ASSUME(x) __assume(x)
3890 #elif defined(__ARMCC_VERSION) /* untested */
3891 # define ASSUME(x) __promise(x)
3892 #elif defined(HAS_BUILTIN_UNREACHABLE)
3893 /* Compilers can take the hint from something being unreachable */
3894 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3896 /* Not DEBUGGING, so assert() is a no-op, but a random compiler might
3897 * define assert() to its own special optimization token so pass it through
3898 * to C lib as a last resort */
3899 # define ASSUME(x) assert(x)
3902 #ifdef HAS_BUILTIN_UNREACHABLE
3903 # define NOT_REACHED \
3905 ASSUME(!"UNREACHABLE"); __builtin_unreachable(); \
3907 # undef HAS_BUILTIN_UNREACHABLE /* Don't leak out this internal symbol */
3908 #elif ! defined(__GNUC__) && (defined(__sun) || defined(__hpux))
3909 /* These just complain that NOT_REACHED isn't reached */
3910 # define NOT_REACHED
3912 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3915 /* Some unistd.h's give a prototype for pause() even though
3916 HAS_PAUSE ends up undefined. This causes the #define
3917 below to be rejected by the compiler. Sigh.
3922 #define Pause() sleep((32767<<16)+32767)
3926 # ifdef IOCPARM_MASK
3927 /* on BSDish systems we're safe */
3928 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3929 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3930 /* on Linux systems we're safe; except when we're not [perl #38223] */
3931 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3933 /* otherwise guess at what's safe */
3934 # define IOCPARM_LEN(x) 256
3938 #if defined(__CYGWIN__)
3940 * This symbol, if defined, indicates that the program should
3941 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3942 * that a file is in "binary" mode -- that is, that no translation
3943 * of bytes occurs on read or write operations.
3945 # define USEMYBINMODE /**/
3946 # include <io.h> /* for setmode() prototype */
3947 # define my_binmode(fp, iotype, mode) \
3948 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3952 void init_os_extras(void);
3955 #ifdef UNION_ANY_DEFINITION
3956 UNION_ANY_DEFINITION;
3974 void (*any_dptr) (void*);
3975 void (*any_dxptr) (pTHX_ void*);
3979 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3981 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3982 #define FILTER_DATA(idx) \
3983 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3984 #define FILTER_ISREADER(idx) \
3985 (PL_parser && PL_parser->rsfp_filters \
3986 && idx >= AvFILLp(PL_parser->rsfp_filters))
3987 #define PERL_FILTER_EXISTS(i) \
3988 (PL_parser && PL_parser->rsfp_filters \
3989 && (Size_t) (i) < av_count(PL_parser->rsfp_filters))
3991 #if defined(_AIX) && !defined(_AIX43)
3992 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3993 /* We cannot include <crypt.h> to get the struct crypt_data
3994 * because of setkey prototype problems when threading */
3995 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3996 /* From OSF, Not needed in AIX
4004 #endif /* threading */
4007 #ifndef PERL_CALLCONV
4009 # define PERL_CALLCONV EXTERN_C
4011 # define PERL_CALLCONV
4014 #ifndef PERL_CALLCONV_NO_RET
4015 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
4018 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
4019 dont have a noreturn as a declaration specifier
4021 #ifndef PERL_STATIC_NO_RET
4022 # define PERL_STATIC_NO_RET STATIC
4025 /* PERL_STATIC_INLINE_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE
4026 * on builds that dont have a noreturn as a declaration specifier
4028 #ifndef PERL_STATIC_INLINE_NO_RET
4029 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
4032 #ifndef PERL_STATIC_FORCE_INLINE
4033 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
4036 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
4037 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
4041 # include "iperlsys.h"
4044 #ifdef __LIBCATAMOUNT__
4045 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
4047 #define FAKE_BIT_BUCKET
4050 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
4051 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
4052 * Configure, despite their names being similar to other defines like
4053 * USE_ITHREADS. Configure in fact knows nothing about the randomised
4054 * hashes. Therefore to enable/disable the hash randomisation defines
4055 * use the Configure -Accflags=... instead. */
4056 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
4057 # define USE_HASH_SEED
4063 /* macros to define bit-fields in structs. */
4064 #ifndef PERL_BITFIELD8
4065 # ifdef HAS_NON_INT_BITFIELDS
4066 # define PERL_BITFIELD8 U8
4068 # define PERL_BITFIELD8 unsigned
4071 #ifndef PERL_BITFIELD16
4072 # ifdef HAS_NON_INT_BITFIELDS
4073 # define PERL_BITFIELD16 U16
4075 # define PERL_BITFIELD16 unsigned
4078 #ifndef PERL_BITFIELD32
4079 # ifdef HAS_NON_INT_BITFIELDS
4080 # define PERL_BITFIELD32 U32
4082 # define PERL_BITFIELD32 unsigned
4093 #include "opnames.h"
4100 #include "warnings.h"
4103 /* these would be in doio.h if there was such a file */
4104 #define my_stat() my_stat_flags(SV_GMAGIC)
4105 #define my_lstat() my_lstat_flags(SV_GMAGIC)
4107 /* defined in sv.c, but also used in [ach]v.c */
4110 #undef _XPVCV_COMMON
4114 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
4116 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) \
4117 || defined(PERL_EXT_RE_BUILD)
4119 /* These have to be predeclared, as they are used in proto.h which is #included
4120 * before their definitions in regcomp.h. */
4123 typedef struct regnode_charclass regnode_charclass;
4125 /* A hopefully less confusing name. The sub-classes are all Posix classes only
4126 * used under /l matching */
4127 typedef struct regnode_charclass_posixl regnode_charclass_class;
4128 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
4130 typedef struct regnode_ssc regnode_ssc;
4131 typedef struct RExC_state_t RExC_state_t;
4132 struct _reg_trie_data;
4136 struct ptr_tbl_ent {
4137 struct ptr_tbl_ent* next;
4143 struct ptr_tbl_ent** tbl_ary;
4146 struct ptr_tbl_arena *tbl_arena;
4147 struct ptr_tbl_ent *tbl_arena_next;
4148 struct ptr_tbl_ent *tbl_arena_end;
4151 #if defined(htonl) && !defined(HAS_HTONL)
4154 #if defined(htons) && !defined(HAS_HTONS)
4157 #if defined(ntohl) && !defined(HAS_NTOHL)
4160 #if defined(ntohs) && !defined(HAS_NTOHS)
4168 # if (BYTEORDER & 0xffff) == 0x4321
4169 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4170 re-order their values. However, to behave identically to the alternative
4171 implementations, they should truncate to the correct size. */
4172 # define ntohl(x) ((x)&0xFFFFFFFF)
4173 # define htonl(x) ntohl(x)
4174 # define ntohs(x) ((x)&0xFFFF)
4175 # define htons(x) ntohs(x)
4176 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4178 /* Note that we can't straight out declare our own htonl and htons because
4179 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4180 to avoid the overhead of initialising the socket subsystem, but the headers
4181 that *declare* the various functions are still seen. If we declare our own
4182 htonl etc they will clash with the declarations in the Win32 headers. */
4184 PERL_STATIC_INLINE U32
4185 my_swap32(const U32 x) {
4186 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4187 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4190 PERL_STATIC_INLINE U16
4191 my_swap16(const U16 x) {
4192 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4195 # define htonl(x) my_swap32(x)
4196 # define ntohl(x) my_swap32(x)
4197 # define ntohs(x) my_swap16(x)
4198 # define htons(x) my_swap16(x)
4200 # error "Unsupported byteorder"
4201 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4202 the error message. Please check the value of the macro BYTEORDER, as defined
4203 in config.h. The values of BYTEORDER we expect are
4205 big endian little endian
4206 32 bit 0x4321 0x1234
4207 64 bit 0x87654321 0x12345678
4209 If you have a system with a different byte order, please see
4210 pod/perlhack.pod for how to submit a patch to add supporting code.
4216 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4219 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4220 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4221 re-order their values. However, to behave identically to the alternative
4222 implementations, they should truncate to the correct size. */
4223 # define vtohl(x) ((x)&0xFFFFFFFF)
4224 # define vtohs(x) ((x)&0xFFFF)
4225 # define htovl(x) vtohl(x)
4226 # define htovs(x) vtohs(x)
4227 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4228 # define vtohl(x) ((((x)&0xFF)<<24) \
4230 +(((x)&0x0000FF00)<<8) \
4231 +(((x)&0x00FF0000)>>8) )
4232 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4233 # define htovl(x) vtohl(x)
4234 # define htovs(x) vtohs(x)
4236 # error "Unsupported byteorder"
4237 /* If you have need for current perl on PDP-11 or similar, and can help test
4238 that blead keeps working on a mixed-endian system, then see
4239 pod/perlhack.pod for how to submit patches to things working again. */
4242 /* *MAX Plus 1. A floating point value.
4243 Hopefully expressed in a way that dodgy floating point can't mess up.
4244 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4246 May find that some broken compiler will want the value cast to I32.
4247 [after the shift, as signed >> may not be as secure as unsigned >>]
4249 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4250 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4251 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4252 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4253 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4255 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4257 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4258 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4259 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4261 /* This may look like unnecessary jumping through hoops, but converting
4262 out of range floating point values to integers *is* undefined behaviour,
4263 and it is starting to bite.
4265 =for apidoc_section $casting
4266 =for apidoc Am|I32|I_32|NV what
4267 Cast an NV to I32 while avoiding undefined C behavior
4269 =for apidoc Am|U32|U_32|NV what
4270 Cast an NV to U32 while avoiding undefined C behavior
4272 =for apidoc Am|IV|I_V|NV what
4273 Cast an NV to IV while avoiding undefined C behavior
4275 =for apidoc Am|UV|U_V|NV what
4276 Cast an NV to UV while avoiding undefined C behavior
4281 #define I_32(what) (cast_i32((NV)(what)))
4282 #define U_32(what) (cast_ulong((NV)(what)))
4283 #define I_V(what) (cast_iv((NV)(what)))
4284 #define U_V(what) (cast_uv((NV)(what)))
4286 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4287 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4288 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4289 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4290 : ((n) < U32_MAX_P1 ? (U32) (n) \
4291 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4292 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4293 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4294 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4295 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4296 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4297 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4300 #define U_S(what) ((U16)U_32(what))
4301 #define U_I(what) ((unsigned int)U_32(what))
4302 #define U_L(what) U_32(what)
4305 =for apidoc_section $integer
4306 =for apidoc Amn|IV|IV_MAX
4307 The largest signed integer that fits in an IV on this platform.
4309 =for apidoc Amn|IV|IV_MIN
4310 The negative signed integer furthest away from 0 that fits in an IV on this
4313 =for apidoc Amn|UV|UV_MAX
4314 The largest unsigned integer that fits in a UV on this platform.
4316 =for apidoc Amn|UV|UV_MIN
4317 The smallest unsigned integer that fits in a UV on this platform. It should
4324 # ifndef Perl_signbit
4325 # define Perl_signbit signbit
4329 /* These do not care about the fractional part, only about the range. */
4330 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4331 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4333 /* Used with UV/IV arguments: */
4334 /* XXXX: need to speed it up */
4335 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4336 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4344 Uid_t getuid (void);
4345 Uid_t geteuid (void);
4346 Gid_t getgid (void);
4347 Gid_t getegid (void);
4351 #ifndef Perl_debug_log
4352 # define Perl_debug_log PerlIO_stderr()
4355 #ifndef Perl_error_log
4356 # define Perl_error_log (PL_stderrgv \
4357 && isGV(PL_stderrgv) \
4358 && GvIOp(PL_stderrgv) \
4359 && IoOFP(GvIOp(PL_stderrgv)) \
4360 ? IoOFP(GvIOp(PL_stderrgv)) \
4365 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4366 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4367 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4368 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4369 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4370 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4371 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4372 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4373 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4374 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4375 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4376 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4377 /* U is reserved for Unofficial, exploratory hacking */
4378 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4380 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4381 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4382 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4383 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4384 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4385 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4386 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4387 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4388 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4389 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4390 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4391 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4392 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4393 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4394 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4395 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4397 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4398 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4400 /* Both flags have to be set */
4401 # define DEBUG_BOTH_FLAGS_TEST_(flag1, flag2) \
4402 UNLIKELY((PL_debug & ((flag1)|(flag2))) \
4403 == ((flag1)|(flag2)))
4405 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4406 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4407 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4408 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4409 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4410 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4411 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4412 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4413 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4414 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4415 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4416 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4417 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4418 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4419 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4420 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4421 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4422 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4423 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4424 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4425 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4426 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4427 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4428 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4429 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4430 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4431 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4432 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4433 # define DEBUG_Xv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_X_FLAG, DEBUG_v_FLAG)
4434 # define DEBUG_Uv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_U_FLAG, DEBUG_v_FLAG)
4435 # define DEBUG_Pv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_P_FLAG, DEBUG_v_FLAG)
4436 # define DEBUG_Lv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_L_FLAG, DEBUG_v_FLAG)
4437 # define DEBUG_yv_TEST_ DEBUG_BOTH_FLAGS_TEST_(DEBUG_y_FLAG, DEBUG_v_FLAG)
4441 # define DEBUG_p_TEST DEBUG_p_TEST_
4442 # define DEBUG_s_TEST DEBUG_s_TEST_
4443 # define DEBUG_l_TEST DEBUG_l_TEST_
4444 # define DEBUG_t_TEST DEBUG_t_TEST_
4445 # define DEBUG_o_TEST DEBUG_o_TEST_
4446 # define DEBUG_c_TEST DEBUG_c_TEST_
4447 # define DEBUG_P_TEST DEBUG_P_TEST_
4448 # define DEBUG_m_TEST DEBUG_m_TEST_
4449 # define DEBUG_f_TEST DEBUG_f_TEST_
4450 # define DEBUG_r_TEST DEBUG_r_TEST_
4451 # define DEBUG_x_TEST DEBUG_x_TEST_
4452 # define DEBUG_u_TEST DEBUG_u_TEST_
4453 # define DEBUG_U_TEST DEBUG_U_TEST_
4454 # define DEBUG_X_TEST DEBUG_X_TEST_
4455 # define DEBUG_D_TEST DEBUG_D_TEST_
4456 # define DEBUG_S_TEST DEBUG_S_TEST_
4457 # define DEBUG_T_TEST DEBUG_T_TEST_
4458 # define DEBUG_R_TEST DEBUG_R_TEST_
4459 # define DEBUG_J_TEST DEBUG_J_TEST_
4460 # define DEBUG_v_TEST DEBUG_v_TEST_
4461 # define DEBUG_C_TEST DEBUG_C_TEST_
4462 # define DEBUG_A_TEST DEBUG_A_TEST_
4463 # define DEBUG_q_TEST DEBUG_q_TEST_
4464 # define DEBUG_M_TEST DEBUG_M_TEST_
4465 # define DEBUG_B_TEST DEBUG_B_TEST_
4466 # define DEBUG_L_TEST DEBUG_L_TEST_
4467 # define DEBUG_i_TEST DEBUG_i_TEST_
4468 # define DEBUG_y_TEST DEBUG_y_TEST_
4469 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4470 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4471 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4472 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4473 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4475 # define PERL_DEB(a) a
4476 # define PERL_DEB2(a,b) a
4477 # define PERL_DEBUG(a) if (PL_debug) a
4478 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4479 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4480 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4481 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4482 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4483 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4484 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4486 /* Temporarily turn off memory debugging in case the a
4487 * does memory allocation, either directly or indirectly. */
4488 # define DEBUG_m(a) \
4490 if (PERL_GET_INTERP) { \
4492 if (DEBUG_m_TEST) { \
4493 PL_debug &= ~DEBUG_m_FLAG; \
4495 PL_debug |= DEBUG_m_FLAG; \
4500 /* These allow you to customize your debugging output for specialized,
4501 * generally temporary ad-hoc purposes. For example, if you need 'errno'
4502 * preserved, you can add definitions to these macros (either in this file for
4503 * the whole program, or before the #include "perl.h" in a particular .c file
4504 * you're trying to debug) and recompile:
4506 * #define DEBUG_PRE_STMTS dSAVE_ERRNO;
4507 * #define DEBUG_POST_STMTS RESTORE_ERRNO;
4509 * Other potential things include displaying timestamps, location information,
4510 * which thread, etc. Heres an example with both errno and location info:
4512 * #define DEBUG_PRE_STMTS dSAVE_ERRNO; \
4513 * PerlIO_printf(Perl_debug_log, "%s:%d: ", __FILE__, __LINE__);
4514 * #define DEBUG_POST RESTORE_ERRNO;
4516 * All DEBUG statements in the compiled scope will be have these extra
4517 * statements compiled in; they will be executed only for the DEBUG statements
4518 * whose flags are turned on.
4520 #ifndef DEBUG_PRE_STMTS
4521 # define DEBUG_PRE_STMTS
4523 #ifndef DEBUG_POST_STMTS
4524 # define DEBUG_POST_STMTS
4527 # define DEBUG__(t, a) \
4529 if (t) STMT_START { \
4530 DEBUG_PRE_STMTS a; DEBUG_POST_STMTS \
4534 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4536 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4537 # ifdef PERL_EXT_RE_BUILD
4538 # define DEBUG_r(a) STMT_START { \
4539 DEBUG_PRE_STMTS a; DEBUG_POST_STMTS \
4542 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4543 # endif /* PERL_EXT_RE_BUILD */
4545 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4546 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4547 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4548 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4549 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4550 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4551 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4552 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4553 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4554 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4556 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4557 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4558 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4559 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4560 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4561 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4562 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4563 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4564 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4565 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4566 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4567 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4569 #else /* ! DEBUGGING below */
4571 # define DEBUG_p_TEST (0)
4572 # define DEBUG_s_TEST (0)
4573 # define DEBUG_l_TEST (0)
4574 # define DEBUG_t_TEST (0)
4575 # define DEBUG_o_TEST (0)
4576 # define DEBUG_c_TEST (0)
4577 # define DEBUG_P_TEST (0)
4578 # define DEBUG_m_TEST (0)
4579 # define DEBUG_f_TEST (0)
4580 # define DEBUG_r_TEST (0)
4581 # define DEBUG_x_TEST (0)
4582 # define DEBUG_u_TEST (0)
4583 # define DEBUG_U_TEST (0)
4584 # define DEBUG_X_TEST (0)
4585 # define DEBUG_D_TEST (0)
4586 # define DEBUG_S_TEST (0)
4587 # define DEBUG_T_TEST (0)
4588 # define DEBUG_R_TEST (0)
4589 # define DEBUG_J_TEST (0)
4590 # define DEBUG_v_TEST (0)
4591 # define DEBUG_C_TEST (0)
4592 # define DEBUG_A_TEST (0)
4593 # define DEBUG_q_TEST (0)
4594 # define DEBUG_M_TEST (0)
4595 # define DEBUG_B_TEST (0)
4596 # define DEBUG_L_TEST (0)
4597 # define DEBUG_i_TEST (0)
4598 # define DEBUG_y_TEST (0)
4599 # define DEBUG_Xv_TEST (0)
4600 # define DEBUG_Uv_TEST (0)
4601 # define DEBUG_Pv_TEST (0)
4602 # define DEBUG_Lv_TEST (0)
4603 # define DEBUG_yv_TEST (0)
4605 # define PERL_DEB(a)
4606 # define PERL_DEB2(a,b) b
4607 # define PERL_DEBUG(a)
4635 # define DEBUG_Xv(a)
4636 # define DEBUG_Uv(a)
4637 # define DEBUG_Pv(a)
4638 # define DEBUG_Lv(a)
4639 # define DEBUG_yv(a)
4640 #endif /* DEBUGGING */
4643 #define DEBUG_SCOPE(where) \
4645 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4646 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4647 __FILE__, __LINE__));
4649 /* Keep the old croak based assert for those who want it, and as a fallback if
4650 the platform is so heretically non-ANSI that it can't assert. */
4652 #define Perl_assert(what) PERL_DEB2( \
4653 ((what) ? ((void) 0) : \
4654 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4655 "\", line %d", STRINGIFY(what), __LINE__), \
4656 (void) 0)), ((void)0))
4658 /* assert() gets defined if DEBUGGING.
4659 * If no DEBUGGING, the <assert.h> has not been included. */
4661 # define assert(what) Perl_assert(what)
4664 # define assert_(what) assert(what),
4666 # define assert_(what)
4670 I32 (*uf_val)(pTHX_ IV, SV*);
4671 I32 (*uf_set)(pTHX_ IV, SV*);
4675 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4676 * XS code wanting to be backward compatible can do something
4677 * like the following:
4679 #ifndef PERL_MG_UFUNC
4680 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4683 static PERL_MG_UFUNC(foo_get, index, val)
4693 #ifndef PERL_MG_UFUNC
4694 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4699 /* isfinite and others are here rather than in math.h as C99 stipulates */
4704 # if !defined(WIN32) && !defined(VMS)
4706 char *crypt (const char*, const char*);
4708 # endif /* !WIN32 */
4711 char *getlogin (void);
4713 # endif /* !WIN32 */
4714 #endif /* !__cplusplus */
4716 /* Fixme on VMS. This needs to be a run-time, not build time options */
4717 /* Also rename() is affected by this */
4718 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4719 #define UNLINK unlnk
4720 I32 unlnk (pTHX_ const char*);
4722 #define UNLINK PerlLIO_unlink
4725 /* some versions of glibc are missing the setresuid() proto */
4726 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4727 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4729 /* some versions of glibc are missing the setresgid() proto */
4730 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4731 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4734 #ifndef HAS_SETREUID
4735 # ifdef HAS_SETRESUID
4736 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4737 # define HAS_SETREUID
4740 #ifndef HAS_SETREGID
4741 # ifdef HAS_SETRESGID
4742 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4743 # define HAS_SETREGID
4747 /* Sighandler_t defined in iperlsys.h */
4749 #ifdef HAS_SIGACTION
4750 typedef struct sigaction Sigsave_t;
4752 typedef Sighandler_t Sigsave_t;
4763 # define RUNOPS_DEFAULT Perl_runops_debug
4765 # define RUNOPS_DEFAULT Perl_runops_standard
4768 #if defined(USE_PERLIO)
4769 EXTERN_C void PerlIO_teardown(void);
4770 # ifdef USE_ITHREADS
4771 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4772 # define PERLIO_TERM \
4774 PerlIO_teardown(); \
4775 MUTEX_DESTROY(&PL_perlio_mutex);\
4778 # define PERLIO_INIT
4779 # define PERLIO_TERM PerlIO_teardown()
4782 # define PERLIO_INIT
4783 # define PERLIO_TERM
4787 # ifdef MUTEX_INIT_CALLS_MALLOC
4788 # define MALLOC_INIT \
4790 PL_malloc_mutex = NULL; \
4791 MUTEX_INIT(&PL_malloc_mutex); \
4793 # define MALLOC_TERM \
4795 perl_mutex tmp = PL_malloc_mutex; \
4796 PL_malloc_mutex = NULL; \
4797 MUTEX_DESTROY(&tmp); \
4800 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4801 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4804 # define MALLOC_INIT
4805 # define MALLOC_TERM
4808 #if defined(MULTIPLICITY)
4810 struct perl_memory_debug_header;
4811 struct perl_memory_debug_header {
4813 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4816 struct perl_memory_debug_header *prev;
4817 struct perl_memory_debug_header *next;
4818 # ifdef PERL_DEBUG_READONLY_COW
4823 #elif defined(PERL_DEBUG_READONLY_COW)
4825 struct perl_memory_debug_header;
4826 struct perl_memory_debug_header {
4832 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4834 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4835 (sizeof(struct perl_memory_debug_header) + \
4836 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4837 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4840 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4843 #ifdef PERL_TRACK_MEMPOOL
4844 # ifdef PERL_DEBUG_READONLY_COW
4845 # define INIT_TRACK_MEMPOOL(header, interp) \
4847 (header).interpreter = (interp); \
4848 (header).prev = (header).next = &(header); \
4849 (header).readonly = 0; \
4852 # define INIT_TRACK_MEMPOOL(header, interp) \
4854 (header).interpreter = (interp); \
4855 (header).prev = (header).next = &(header); \
4859 # define INIT_TRACK_MEMPOOL(header, interp)
4862 #ifdef I_MALLOCMALLOC
4863 /* Needed for malloc_size(), malloc_good_size() on some systems */
4864 # include <malloc/malloc.h>
4868 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4870 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4871 # ifdef PERL_TRACK_MEMPOOL
4872 # define Perl_safesysmalloc_size(where) \
4873 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4875 # define Perl_safesysmalloc_size(where) malloc_size(where)
4878 # ifdef HAS_MALLOC_GOOD_SIZE
4879 # ifdef PERL_TRACK_MEMPOOL
4880 # define Perl_malloc_good_size(how_much) \
4881 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4883 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4886 /* Having this as the identity operation makes some code simpler. */
4887 # define Perl_malloc_good_size(how_much) (how_much)
4891 typedef int (*runops_proc_t)(pTHX);
4892 typedef void (*share_proc_t) (pTHX_ SV *sv);
4893 typedef int (*thrhook_proc_t) (pTHX);
4894 typedef OP* (*PPADDR_t[]) (pTHX);
4895 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4896 typedef void (*despatch_signals_proc_t) (pTHX);
4898 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4899 # include <crt_externs.h> /* for the env array */
4900 # define environ (*_NSGetEnviron())
4901 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4902 /* VMS and some other platforms don't use the environ array */
4903 EXTERN_C char **environ; /* environment variables supplied via exec */
4906 #define PERL_PATCHLEVEL_H_IMPLICIT
4907 #include "patchlevel.h"
4908 #undef PERL_PATCHLEVEL_H_IMPLICIT
4910 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4911 STRINGIFY(PERL_VERSION) "." \
4912 STRINGIFY(PERL_SUBVERSION)
4914 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4915 STRINGIFY(PERL_API_VERSION) "." \
4916 STRINGIFY(PERL_API_SUBVERSION)
4920 /* handy constants */
4921 EXTCONST char PL_warn_uninit[]
4922 INIT("Use of uninitialized value%s%s%s");
4923 EXTCONST char PL_warn_uninit_sv[]
4924 INIT("Use of uninitialized value%" SVf "%s%s");
4925 EXTCONST char PL_warn_nosemi[]
4926 INIT("Semicolon seems to be missing");
4927 EXTCONST char PL_warn_reserved[]
4928 INIT("Unquoted string \"%s\" may clash with future reserved word");
4929 EXTCONST char PL_warn_nl[]
4930 INIT("Unsuccessful %s on filename containing newline");
4931 EXTCONST char PL_no_wrongref[]
4932 INIT("Can't use %s ref as %s ref");
4933 /* The core no longer needs this here. If you require the string constant,
4934 please inline a copy into your own code. */
4935 EXTCONST char PL_no_symref[] __attribute__deprecated__
4936 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4937 EXTCONST char PL_no_symref_sv[]
4938 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4940 EXTCONST char PL_no_usym[]
4941 INIT("Can't use an undefined value as %s reference");
4942 EXTCONST char PL_no_aelem[]
4943 INIT("Modification of non-creatable array value attempted, subscript %d");
4944 EXTCONST char PL_no_helem_sv[]
4945 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4946 EXTCONST char PL_no_modify[]
4947 INIT("Modification of a read-only value attempted");
4948 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4949 INIT("Out of memory!\n");
4950 EXTCONST char PL_no_security[]
4951 INIT("Insecure dependency in %s%s");
4952 EXTCONST char PL_no_sock_func[]
4953 INIT("Unsupported socket function \"%s\" called");
4954 EXTCONST char PL_no_dir_func[]
4955 INIT("Unsupported directory function \"%s\" called");
4956 EXTCONST char PL_no_func[]
4957 INIT("The %s function is unimplemented");
4958 EXTCONST char PL_no_myglob[]
4959 INIT("\"%s\" %s %s can't be in a package");
4960 EXTCONST char PL_no_localize_ref[]
4961 INIT("Can't localize through a reference");
4962 EXTCONST char PL_memory_wrap[]
4963 INIT("panic: memory wrap");
4964 EXTCONST char PL_extended_cp_format[]
4965 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4966 " and so is not portable");
4967 EXTCONST char PL_Yes[]
4969 EXTCONST char PL_No[]
4971 EXTCONST char PL_Zero[]
4975 =for apidoc_section $numeric
4976 =for apidoc AmTuU|const char *|PL_hexdigit|U8 value
4978 This array, indexed by an integer, converts that value into the character that
4979 represents it. For example, if the input is 8, the return will be a string
4980 whose first character is '8'. What is actually returned is a pointer into a
4981 string. All you are interested in is the first character of that string. To
4982 get uppercase letters (for the values 10..15), add 16 to the index. Hence,
4983 C<PL_hexdigit[11]> is C<'b'>, and C<PL_hexdigit[11+16]> is C<'B'>. Adding 16
4984 to an index whose representation is '0'..'9' yields the same as not adding 16.
4985 Indices outside the range 0..31 result in (bad) undedefined behavior.
4989 EXTCONST char PL_hexdigit[]
4990 INIT("0123456789abcdef0123456789ABCDEF");
4992 EXTCONST STRLEN PL_WARN_ALL
4994 EXTCONST STRLEN PL_WARN_NONE
4997 /* This is constant on most architectures, a global on OS/2 */
4999 EXTCONST char PL_sh_path[]
5000 INIT(SH_PATH); /* full path of shell */
5004 EXTCONST char PL_cshname[]
5006 # define PL_cshlen (sizeof(CSH "") - 1)
5009 /* These are baked at compile time into any shared perl library.
5010 In future releases this will allow us in main() to sanity test the
5011 library we're linking against. */
5013 EXTCONST U8 PL_revision
5014 INIT(PERL_REVISION);
5015 EXTCONST U8 PL_version
5017 EXTCONST U8 PL_subversion
5018 INIT(PERL_SUBVERSION);
5020 EXTCONST char PL_uuemap[65]
5021 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
5023 /* a special string address whose value is "isa", but which perl knows
5024 * to treat as if it were really "DOES" when printing the method name in
5025 * the "Can't call method '%s'" error message */
5026 EXTCONST char PL_isa_DOES[]
5030 EXTCONST char PL_uudmap[256] =
5032 # include "uuudmap.h"
5034 # include "uudmap.h"
5037 EXTCONST char PL_bitcount[256] =
5039 # include "ubitcount.h"
5041 # include "bitcount.h"
5044 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
5045 EXTCONST int PL_sig_num[] = { SIG_NUM };
5047 EXTCONST char PL_uudmap[256];
5048 EXTCONST char PL_bitcount[256];
5049 EXTCONST char* const PL_sig_name[];
5050 EXTCONST int PL_sig_num[];
5053 /* fast conversion and case folding tables. The folding tables complement the
5054 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
5055 * folds such as outside the range or to multiple characters. */
5060 /* The EBCDIC fold table depends on the code page, and hence is found in
5061 * ebcdic_tables.h */
5063 EXTCONST unsigned char PL_fold[] = {
5064 0, 1, 2, 3, 4, 5, 6, 7,
5065 8, 9, 10, 11, 12, 13, 14, 15,
5066 16, 17, 18, 19, 20, 21, 22, 23,
5067 24, 25, 26, 27, 28, 29, 30, 31,
5068 32, 33, 34, 35, 36, 37, 38, 39,
5069 40, 41, 42, 43, 44, 45, 46, 47,
5070 48, 49, 50, 51, 52, 53, 54, 55,
5071 56, 57, 58, 59, 60, 61, 62, 63,
5072 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5073 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5074 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5075 'x', 'y', 'z', 91, 92, 93, 94, 95,
5076 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5077 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5078 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5079 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5080 128, 129, 130, 131, 132, 133, 134, 135,
5081 136, 137, 138, 139, 140, 141, 142, 143,
5082 144, 145, 146, 147, 148, 149, 150, 151,
5083 152, 153, 154, 155, 156, 157, 158, 159,
5084 160, 161, 162, 163, 164, 165, 166, 167,
5085 168, 169, 170, 171, 172, 173, 174, 175,
5086 176, 177, 178, 179, 180, 181, 182, 183,
5087 184, 185, 186, 187, 188, 189, 190, 191,
5088 192, 193, 194, 195, 196, 197, 198, 199,
5089 200, 201, 202, 203, 204, 205, 206, 207,
5090 208, 209, 210, 211, 212, 213, 214, 215,
5091 216, 217, 218, 219, 220, 221, 222, 223,
5092 224, 225, 226, 227, 228, 229, 230, 231,
5093 232, 233, 234, 235, 236, 237, 238, 239,
5094 240, 241, 242, 243, 244, 245, 246, 247,
5095 248, 249, 250, 251, 252, 253, 254, 255
5098 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
5099 0, 1, 2, 3, 4, 5, 6, 7,
5100 8, 9, 10, 11, 12, 13, 14, 15,
5101 16, 17, 18, 19, 20, 21, 22, 23,
5102 24, 25, 26, 27, 28, 29, 30, 31,
5103 32, 33, 34, 35, 36, 37, 38, 39,
5104 40, 41, 42, 43, 44, 45, 46, 47,
5105 48, 49, 50, 51, 52, 53, 54, 55,
5106 56, 57, 58, 59, 60, 61, 62, 63,
5107 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5108 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5109 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5110 'x', 'y', 'z', 91, 92, 93, 94, 95,
5111 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5112 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5113 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5114 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5115 128, 129, 130, 131, 132, 133, 134, 135,
5116 136, 137, 138, 139, 140, 141, 142, 143,
5117 144, 145, 146, 147, 148, 149, 150, 151,
5118 152, 153, 154, 155, 156, 157, 158, 159,
5119 160, 161, 162, 163, 164, 165, 166, 167,
5120 168, 169, 170, 171, 172, 173, 174, 175,
5121 176, 177, 178, 179, 180, 181, 182, 183,
5122 184, 185, 186, 187, 188, 189, 190, 191,
5123 192, 193, 194, 195, 196, 197, 198, 199,
5124 200, 201, 202, 203, 204, 205, 206, 207,
5125 208, 209, 210, 211, 212, 213, 214, 215,
5126 216, 217, 218, 219, 220, 221, 222, 223,
5127 224, 225, 226, 227, 228, 229, 230, 231,
5128 232, 233, 234, 235, 236, 237, 238, 239,
5129 240, 241, 242, 243, 244, 245, 246, 247,
5130 248, 249, 250, 251, 252, 253, 254, 255
5133 EXTCONST unsigned char PL_fold_latin1[] = {
5134 /* Full latin1 complement folding, except for three problematic code points:
5135 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
5136 * fold complements outside the Latin1 range, so can't match something
5137 * that isn't in utf8.
5138 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
5139 * not one, so can't be represented in this table.
5141 * All have to be specially handled */
5142 0, 1, 2, 3, 4, 5, 6, 7,
5143 8, 9, 10, 11, 12, 13, 14, 15,
5144 16, 17, 18, 19, 20, 21, 22, 23,
5145 24, 25, 26, 27, 28, 29, 30, 31,
5146 32, 33, 34, 35, 36, 37, 38, 39,
5147 40, 41, 42, 43, 44, 45, 46, 47,
5148 48, 49, 50, 51, 52, 53, 54, 55,
5149 56, 57, 58, 59, 60, 61, 62, 63,
5150 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5151 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5152 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5153 'x', 'y', 'z', 91, 92, 93, 94, 95,
5154 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5155 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5156 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5157 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5158 128, 129, 130, 131, 132, 133, 134, 135,
5159 136, 137, 138, 139, 140, 141, 142, 143,
5160 144, 145, 146, 147, 148, 149, 150, 151,
5161 152, 153, 154, 155, 156, 157, 158, 159,
5162 160, 161, 162, 163, 164, 165, 166, 167,
5163 168, 169, 170, 171, 172, 173, 174, 175,
5164 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
5165 184, 185, 186, 187, 188, 189, 190, 191,
5166 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5167 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5168 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5169 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
5170 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5171 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5172 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5173 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
5174 255 /* y with diaeresis */
5177 /* If these tables are accessed through ebcdic, the access will be converted to
5179 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
5180 0, 1, 2, 3, 4, 5, 6, 7,
5181 8, 9, 10, 11, 12, 13, 14, 15,
5182 16, 17, 18, 19, 20, 21, 22, 23,
5183 24, 25, 26, 27, 28, 29, 30, 31,
5184 32, 33, 34, 35, 36, 37, 38, 39,
5185 40, 41, 42, 43, 44, 45, 46, 47,
5186 48, 49, 50, 51, 52, 53, 54, 55,
5187 56, 57, 58, 59, 60, 61, 62, 63,
5188 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5189 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5190 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5191 'x', 'y', 'z', 91, 92, 93, 94, 95,
5192 96, 97, 98, 99, 100, 101, 102, 103,
5193 104, 105, 106, 107, 108, 109, 110, 111,
5194 112, 113, 114, 115, 116, 117, 118, 119,
5195 120, 121, 122, 123, 124, 125, 126, 127,
5196 128, 129, 130, 131, 132, 133, 134, 135,
5197 136, 137, 138, 139, 140, 141, 142, 143,
5198 144, 145, 146, 147, 148, 149, 150, 151,
5199 152, 153, 154, 155, 156, 157, 158, 159,
5200 160, 161, 162, 163, 164, 165, 166, 167,
5201 168, 169, 170, 171, 172, 173, 174, 175,
5202 176, 177, 178, 179, 180, 181, 182, 183,
5203 184, 185, 186, 187, 188, 189, 190, 191,
5204 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5205 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5206 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5207 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
5208 224, 225, 226, 227, 228, 229, 230, 231,
5209 232, 233, 234, 235, 236, 237, 238, 239,
5210 240, 241, 242, 243, 244, 245, 246, 247,
5211 248, 249, 250, 251, 252, 253, 254, 255
5214 /* upper and title case of latin1 characters, modified so that the three tricky
5215 * ones are mapped to 255 (which is one of the three) */
5216 EXTCONST unsigned char PL_mod_latin1_uc[] = {
5217 0, 1, 2, 3, 4, 5, 6, 7,
5218 8, 9, 10, 11, 12, 13, 14, 15,
5219 16, 17, 18, 19, 20, 21, 22, 23,
5220 24, 25, 26, 27, 28, 29, 30, 31,
5221 32, 33, 34, 35, 36, 37, 38, 39,
5222 40, 41, 42, 43, 44, 45, 46, 47,
5223 48, 49, 50, 51, 52, 53, 54, 55,
5224 56, 57, 58, 59, 60, 61, 62, 63,
5225 64, 65, 66, 67, 68, 69, 70, 71,
5226 72, 73, 74, 75, 76, 77, 78, 79,
5227 80, 81, 82, 83, 84, 85, 86, 87,
5228 88, 89, 90, 91, 92, 93, 94, 95,
5229 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5230 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5231 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5232 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5233 128, 129, 130, 131, 132, 133, 134, 135,
5234 136, 137, 138, 139, 140, 141, 142, 143,
5235 144, 145, 146, 147, 148, 149, 150, 151,
5236 152, 153, 154, 155, 156, 157, 158, 159,
5237 160, 161, 162, 163, 164, 165, 166, 167,
5238 168, 169, 170, 171, 172, 173, 174, 175,
5239 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
5240 184, 185, 186, 187, 188, 189, 190, 191,
5241 192, 193, 194, 195, 196, 197, 198, 199,
5242 200, 201, 202, 203, 204, 205, 206, 207,
5243 208, 209, 210, 211, 212, 213, 214, 215,
5244 216, 217, 218, 219, 220, 221, 222,
5245 # if UNICODE_MAJOR_VERSION > 2 \
5246 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
5247 && UNICODE_DOT_DOT_VERSION >= 8)
5249 # else /* uc(sharp s) is 'sharp s' itself in early unicode */
5252 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5253 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5254 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5255 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
5257 # endif /* !EBCDIC, but still in DOINIT */
5258 #else /* ! DOINIT */
5260 EXTCONST unsigned char PL_fold[];
5261 EXTCONST unsigned char PL_fold_latin1[];
5262 EXTCONST unsigned char PL_mod_latin1_uc[];
5263 EXTCONST unsigned char PL_latin1_lc[];
5264 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
5268 /* Although only used for debugging, these constants must be available in
5269 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5270 * which has DEBUGGING enabled always */
5272 EXTCONST char* const PL_block_type[] = {
5288 EXTCONST char* PL_block_type[];
5291 /* These are all the compile time options that affect binary compatibility.
5292 Other compile time options that are binary compatible are in perl.c
5293 (in S_Internals_V()). Both are combined for the output of perl -V
5294 However, this string will be embedded in any shared perl library, which will
5295 allow us add a comparison check in perlmain.c in the near future. */
5297 EXTCONST char PL_bincompat_options[] =
5298 # ifdef DEBUG_LEAKING_SCALARS
5299 " DEBUG_LEAKING_SCALARS"
5301 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5302 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5307 # ifdef HAVE_INTERP_INTERN
5308 " HAVE_INTERP_INTERN"
5310 # ifdef MULTIPLICITY
5316 # ifdef PERLIO_LAYERS
5319 # ifdef PERL_DEBUG_READONLY_COW
5320 " PERL_DEBUG_READONLY_COW"
5322 # ifdef PERL_DEBUG_READONLY_OPS
5323 " PERL_DEBUG_READONLY_OPS"
5325 # ifdef PERL_IMPLICIT_SYS
5326 " PERL_IMPLICIT_SYS"
5334 # ifdef PERL_SAWAMPERSAND
5335 " PERL_SAWAMPERSAND"
5337 # ifdef PERL_TRACK_MEMPOOL
5338 " PERL_TRACK_MEMPOOL"
5340 # ifdef PERL_USES_PL_PIDSTATUS
5341 " PERL_USES_PL_PIDSTATUS"
5343 # ifdef USE_64_BIT_ALL
5346 # ifdef USE_64_BIT_INT
5352 # ifdef USE_ITHREADS
5355 # ifdef USE_LARGE_FILES
5358 # ifdef USE_LOCALE_COLLATE
5359 " USE_LOCALE_COLLATE"
5361 # ifdef USE_LOCALE_NUMERIC
5362 " USE_LOCALE_NUMERIC"
5364 # ifdef USE_LOCALE_TIME
5367 # ifdef USE_LONG_DOUBLE
5373 # ifdef USE_QUADMATH
5376 # ifdef USE_REENTRANT_API
5377 " USE_REENTRANT_API"
5382 # ifdef VMS_DO_SOCKETS
5385 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5386 " VMS_SHORTEN_LONG_SYMBOLS"
5388 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5389 " VMS_SYMBOL_CASE_AS_IS"
5393 EXTCONST char PL_bincompat_options[];
5396 #ifndef PERL_SET_PHASE
5397 # define PERL_SET_PHASE(new_phase) \
5398 PERL_DTRACE_PROBE_PHASE(new_phase); \
5399 PL_phase = new_phase;
5402 /* The interpreter phases. If these ever change, PL_phase_names right below will
5403 * need to be updated accordingly. */
5405 PERL_PHASE_CONSTRUCT = 0,
5406 PERL_PHASE_START = 1,
5407 PERL_PHASE_CHECK = 2,
5408 PERL_PHASE_INIT = 3,
5411 PERL_PHASE_DESTRUCT = 6
5415 EXTCONST char *const PL_phase_names[] = {
5425 EXTCONST char *const PL_phase_names[];
5429 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5430 * instead of using the newer PL_phase, which provides everything PL_dirty
5431 * provided, and more. */
5432 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5434 # define PL_amagic_generation PL_na
5435 # define PL_encoding ((SV *)NULL)
5436 #endif /* !PERL_CORE */
5438 #define PL_hints PL_compiling.cop_hints
5439 #define PL_maxo MAXO
5443 /*****************************************************************************/
5444 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5445 /*****************************************************************************/
5446 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5449 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5458 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5466 XATTRBLOCK, /* next token should be an attribute or block */
5467 XATTRTERM, /* next token should be an attribute, or block in a term */
5471 XTERMORDORDOR /* evil hack */
5472 /* update exp_name[] in toke.c if adding to this enum */
5475 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5477 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5478 special and there is no need for HINT_PRIVATE_MASK for COPs
5479 However, bitops store HINT_INTEGER in their op_private.
5481 NOTE: The typical module using these has the bit value hard-coded, so don't
5482 blindly change the values of these.
5484 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5485 is for "use locale 'FOO'" which excludes some categories. It requires going
5486 to %^H to find out which are in and which are out. This could be extended
5487 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5489 #define HINT_INTEGER 0x00000001 /* integer pragma */
5490 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5491 #define HINT_LOCALE 0x00000004 /* locale pragma */
5492 #define HINT_BYTES 0x00000008 /* bytes pragma */
5493 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5495 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5496 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5497 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5499 #define HINT_BLOCK_SCOPE 0x00000100
5500 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5501 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5502 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5504 /* The HINT_NEW_* constants are used by the overload pragma */
5505 #define HINT_NEW_INTEGER 0x00001000
5506 #define HINT_NEW_FLOAT 0x00002000
5507 #define HINT_NEW_BINARY 0x00004000
5508 #define HINT_NEW_STRING 0x00008000
5509 #define HINT_NEW_RE 0x00010000
5510 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5511 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5512 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5514 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5515 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5517 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5518 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5520 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5522 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5524 #define HINT_FEATURE_MASK 0x3c000000 /* 4 bits for feature bundles */
5526 /* Note: Used for HINT_M_VMSISH_*,
5527 currently defined by vms/vmsish.h:
5532 /* The following are stored in $^H{sort}, not in PL_hints */
5533 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5534 #define HINT_SORT_UNSTABLE 0x00000200
5536 #define HINT_ALL_STRICT HINT_STRICT_REFS \
5537 | HINT_STRICT_SUBS \
5540 #ifdef USE_STRICT_BY_DEFAULT
5541 #define HINTS_DEFAULT HINT_ALL_STRICT
5543 #define HINTS_DEFAULT 0
5546 /* flags for PL_sawampersand */
5548 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5549 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5550 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5552 #ifndef PERL_SAWAMPERSAND
5553 # define PL_sawampersand \
5554 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5557 /* Used for debugvar magic */
5558 #define DBVARMG_SINGLE 0
5559 #define DBVARMG_TRACE 1
5560 #define DBVARMG_SIGNAL 2
5561 #define DBVARMG_COUNT 3
5563 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5564 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5565 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5567 /* Various states of the input record separator SV (rs) */
5568 #define RsSNARF(sv) (! SvOK(sv))
5569 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5570 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5571 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5573 /* A struct for keeping various DEBUGGING related stuff,
5574 * neatly packed. Currently only scratch variables for
5575 * constructing debug output are included. Needed always,
5576 * not just when DEBUGGING, though, because of the re extension. c*/
5577 struct perl_debug_pad {
5581 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5582 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5583 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5586 /* Enable variables which are pointers to functions */
5587 typedef void (*peep_t)(pTHX_ OP* o);
5588 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5589 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5590 char* strend, char* strbeg, I32 minend,
5591 SV* screamer, void* data, U32 flags);
5592 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5593 char *strpos, char *strend,
5595 re_scream_pos_data *d);
5596 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5597 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5598 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5599 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5601 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5602 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5603 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5604 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5605 typedef void (*XSINIT_t) (pTHX);
5606 typedef void (*ATEXIT_t) (pTHX_ void*);
5607 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5609 typedef OP* (*Perl_ppaddr_t)(pTHX);
5610 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5611 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5612 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5613 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5615 typedef void(*globhook_t)(pTHX);
5617 #define KEYWORD_PLUGIN_DECLINE 0
5618 #define KEYWORD_PLUGIN_STMT 1
5619 #define KEYWORD_PLUGIN_EXPR 2
5621 /* Interpreter exitlist entry */
5622 typedef struct exitlistentry {
5623 void (*fn) (pTHX_ void*);
5625 } PerlExitListEntry;
5627 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5628 /* These have to be before perlvars.h */
5629 #if !defined(HAS_SIGACTION) && defined(VMS)
5630 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5632 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5633 #if defined(KILL_BY_SIGPRC)
5634 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5637 #if !defined(MULTIPLICITY)
5639 struct interpreter {
5645 /* If we have multiple interpreters define a struct
5646 holding variables which must be per-interpreter
5647 If we don't have threads anything that would have
5648 be per-thread is per-interpreter.
5651 /* Set up PERLVAR macros for populating structs */
5652 # define PERLVAR(prefix,var,type) type prefix##var;
5654 /* 'var' is an array of length 'n' */
5655 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5657 /* initialize 'var' to init' */
5658 # define PERLVARI(prefix,var,type,init) type prefix##var;
5660 /* like PERLVARI, but make 'var' a const */
5661 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5663 struct interpreter {
5664 # include "intrpvar.h"
5667 EXTCONST U16 PL_interp_size
5668 INIT(sizeof(struct interpreter));
5670 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5671 STRUCT_OFFSET(struct interpreter, member) + \
5672 sizeof(((struct interpreter*)0)->member)
5674 /* This will be useful for subsequent releases, because this has to be the
5675 same in your libperl as in main(), else you have a mismatch and must abort.
5677 EXTCONST U16 PL_interp_size_5_18_0
5678 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5681 /* Done with PERLVAR macros for now ... */
5687 #endif /* MULTIPLICITY */
5689 struct tempsym; /* defined in pp_pack.c */
5696 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5697 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5700 # include "malloc_ctl.h"
5704 * This provides a layer of functions and macros to ensure extensions will
5705 * get to use the same RTL functions as the core.
5708 # include "win32iop.h"
5714 /* this has structure inits, so it cannot be included before here */
5717 /* The following must follow proto.h as #defines mess up syntax */
5719 #if !defined(PERL_FOR_X2P)
5720 # include "embedvar.h"
5723 /* Now include all the 'global' variables
5724 * If we don't have threads or multiple interpreters
5725 * these include variables that would have been their struct-s
5728 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5729 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5730 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5731 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5733 #if !defined(MULTIPLICITY)
5735 # include "intrpvar.h"
5737 # define PL_sv_yes (PL_sv_immortals[0])
5738 # define PL_sv_undef (PL_sv_immortals[1])
5739 # define PL_sv_no (PL_sv_immortals[2])
5740 # define PL_sv_zero (PL_sv_immortals[3])
5744 /* All core uses now exterminated. Ensure no zombies can return: */
5748 /* Now all the config stuff is setup we can include embed.h
5749 In particular, need the relevant *ish file included already, as it may
5750 define HAVE_INTERP_INTERN */
5755 # include "perlvars.h"
5764 #if !defined(MULTIPLICITY)
5765 /* Set up PERLVAR macros for populating structs */
5766 # define PERLVAR(prefix,var,type) type prefix##var;
5767 /* 'var' is an array of length 'n' */
5768 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5769 /* initialize 'var' to init' */
5770 # define PERLVARI(prefix,var,type,init) type prefix##var;
5771 /* like PERLVARI, but make 'var' a const */
5772 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5774 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5775 struct PerlHandShakeInterpreter {
5776 # include "intrpvar.h"
5786 /* dummy variables that hold pointers to both runops functions, thus forcing
5787 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5789 EXTCONST runops_proc_t PL_runops_std
5790 INIT(Perl_runops_standard);
5791 EXTCONST runops_proc_t PL_runops_dbg
5792 INIT(Perl_runops_debug);
5794 #define EXT_MGVTBL EXTCONST MGVTBL
5796 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5797 #define PERL_MAGIC_VALUE_MAGIC 0x80
5798 #define PERL_MAGIC_VTABLE_MASK 0x3F
5800 /* can this type of magic be attached to a readonly SV? */
5801 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5802 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5804 /* Is this type of magic container magic (%ENV, $1 etc),
5805 * or value magic (pos, taint etc)?
5807 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5808 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5810 #include "mg_vtable.h"
5813 EXTCONST U8 PL_magic_data[256] =
5815 # include "umg_data.h"
5817 # include "mg_data.h"
5821 EXTCONST U8 PL_magic_data[256];
5825 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5827 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5829 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5831 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5833 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5835 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5837 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5841 EXTCONST bool PL_valid_types_IVX[];
5842 EXTCONST bool PL_valid_types_NVX[];
5843 EXTCONST bool PL_valid_types_PVX[];
5844 EXTCONST bool PL_valid_types_RV[];
5845 EXTCONST bool PL_valid_types_IV_set[];
5846 EXTCONST bool PL_valid_types_NV_set[];
5850 /* In C99 we could use designated (named field) union initializers.
5851 * In C89 we need to initialize the member declared first.
5852 * In C++ we need extern C initializers.
5854 * With the U8_NV version you will want to have inner braces,
5855 * while with the NV_U8 use just the NV. */
5857 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5858 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5860 /* if these never got defined, they need defaults */
5861 #ifndef PERL_SET_CONTEXT
5862 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5865 #ifndef PERL_GET_CONTEXT
5866 # define PERL_GET_CONTEXT PERL_GET_INTERP
5869 #ifndef PERL_GET_THX
5870 # define PERL_GET_THX ((void*)NULL)
5873 #ifndef PERL_SET_THX
5874 # define PERL_SET_THX(t) NOOP
5879 /* The tables below are adapted from
5880 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5883 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5885 Permission is hereby granted, free of charge, to any person obtaining a copy of
5886 this software and associated documentation files (the "Software"), to deal in
5887 the Software without restriction, including without limitation the rights to
5888 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5889 of the Software, and to permit persons to whom the Software is furnished to do
5890 so, subject to the following conditions:
5892 The above copyright notice and this permission notice shall be included in all
5893 copies or substantial portions of the Software.
5895 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5896 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5897 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5898 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5899 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5900 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5906 # if 0 /* This is the original table given in
5907 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5908 static U8 utf8d_C9[] = {
5909 /* The first part of the table maps bytes to character classes that
5910 * to reduce the size of the transition table and create bitmasks. */
5911 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*/
5912 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*/
5913 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*/
5914 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*/
5915 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*/
5916 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*/
5917 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*/
5918 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*/
5920 /* The second part is a transition table that maps a combination
5921 * of a state of the automaton and a character class to a state. */
5922 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5923 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5924 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5925 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5926 12,36,12,12,12,12,12,12,12,12,12,12
5931 /* This is a version of the above table customized for Perl that doesn't
5932 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5933 * machines). The classes have been renumbered so that the patterns are more
5934 * evident in the table. The class numbers for start bytes are constrained so
5935 * that they can be used as a shift count for masking off the leading one bits.
5936 * It would make the code simpler if start byte FF could also be handled, but
5937 * doing so would mean adding nodes for each of continuation bytes 6-12
5938 * remaining, and two more nodes for overlong detection (a total of 9), and
5939 * there is room only for 4 more nodes unless we make the array U16 instead of
5944 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5946 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5947 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5948 * 88-8F 10 Not legal immediately after start bytes E0 F0
5949 * 90-9F 11 Not legal immediately after start byte E0
5961 * FE 17 (or 1 on 32-bit machines, since it overflows)
5965 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5966 /* The first part of the table maps bytes to character classes to reduce
5967 * the size of the transition table and create bitmasks. */
5968 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5969 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5970 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5971 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5972 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5973 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5974 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5975 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5976 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5977 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5978 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5979 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5980 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5981 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5982 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5983 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5991 /* The second part is a transition table that maps a combination
5992 * of a state of the automaton and a character class to a new state, called a
5993 * node. The nodes are:
5994 * N0 The initial state, and final accepting one.
5995 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5996 * immediately when the start byte indicates a two-byte sequence
5997 * N2 Any two continuation bytes left.
5998 * N3 Any three continuation bytes left.
5999 * N4 Any four continuation bytes left.
6000 * N5 Any five continuation bytes left.
6001 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6002 * the other continuations transition to N1
6003 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6004 * the other continuations transition to N2
6005 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
6006 * the other continuations transition to N3
6007 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
6008 * the other continuations transition to N4
6009 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
6010 * the other continuations transition to N5
6011 * 1 Reject. All transitions not mentioned above (except the single
6012 * byte ones (as they are always legal)) are to this state.
6015 # if defined(PERL_CORE)
6016 # define NUM_CLASSES 18
6018 # define N1 ((N0) + NUM_CLASSES)
6019 # define N2 ((N1) + NUM_CLASSES)
6020 # define N3 ((N2) + NUM_CLASSES)
6021 # define N4 ((N3) + NUM_CLASSES)
6022 # define N5 ((N4) + NUM_CLASSES)
6023 # define N6 ((N5) + NUM_CLASSES)
6024 # define N7 ((N6) + NUM_CLASSES)
6025 # define N8 ((N7) + NUM_CLASSES)
6026 # define N9 ((N8) + NUM_CLASSES)
6027 # define N10 ((N9) + NUM_CLASSES)
6029 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
6030 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
6031 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
6032 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
6033 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
6034 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
6035 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
6037 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
6038 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
6039 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
6040 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
6041 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
6044 /* And below is a version of the above table that accepts only strict UTF-8.
6045 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
6046 * passes this dfa, it will be for a well-formed, non-problematic code point
6047 * that can be returned immediately.
6049 * The "Implementation details" portion of
6050 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
6051 * the first portion of the table maps each possible byte into a character
6052 * class. And that the classes for those bytes which are start bytes have been
6053 * carefully chosen so they serve as well to be used as a shift value to mask
6054 * off the leading 1 bits of the start byte. Unfortunately the addition of
6055 * being able to distinguish non-characters makes this not fully work. This is
6056 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
6058 * 1) ED because it could be a surrogate
6059 * 2) EF because it could be a non-character
6060 * 3) the rest, which can never evaluate to a problematic code point.
6062 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
6063 * shift (and hence class number) of either 3 or 4 to get a mask that works.
6064 * But that only allows two categories, and we need three. khw made the
6065 * decision to therefore treat the ED start byte as an error, so that the dfa
6066 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
6067 * distinguish EF vs the rest. Then special code is used to deal with ED,
6068 * that's executed only when the dfa drops out. The code points started by ED
6069 * are half surrogates, and half hangul syllables. This means that 2048 of
6070 * the hangul syllables (about 18%) take longer than all other non-problematic
6071 * code points to handle.
6073 * The changes to handle non-characters requires the addition of states and
6074 * classes to the dfa. (See the section on "Mapping bytes to character
6075 * classes" in the linked-to document for further explanation of the original
6099 * F1-F3 6 (6 bits can be stripped)
6100 * F4 5 (only 5 can be stripped)
6104 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
6105 /* The first part of the table maps bytes to character classes to reduce
6106 * the size of the transition table and create bitmasks. */
6107 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6108 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6109 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6110 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6111 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6112 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6113 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6114 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6115 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
6116 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
6117 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
6118 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
6119 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6120 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6121 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
6122 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6124 /* The second part is a transition table that maps a combination
6125 * of a state of the automaton and a character class to a new state, called a
6126 * node. The nodes are:
6127 * N0 The initial state, and final accepting one.
6128 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6129 * immediately when the start byte indicates a two-byte sequence
6130 * N2 Any two continuation bytes left.
6131 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6132 * the other continuations transition to state N1
6133 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
6134 * the other continuations transitions to N1
6135 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6136 * [9AB]F transition to N10; the other continuations to N2.
6137 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
6138 * to N10; the other continuations to N2.
6139 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6140 * (non-unicode); 8F transitions to N10; the other continuations to N2
6141 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
6142 * (non-characters); the other continuations transition to N0.
6143 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
6144 * (non-characters); the other continuations transition to N0.
6145 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
6146 * Continuation byte BF transitions to N11; the other continuations to
6148 * N11 Initial sequence is the two bytes given in N10 followed by BF.
6149 * Continuation bytes BE and BF are illegal (non-characters); the other
6150 * continuations transition to N0.
6151 * 1 Reject. All transitions not mentioned above (except the single
6152 * byte ones (as they are always legal) are to this state.
6166 # define NUM_CLASSES 19
6168 # define N1 ((N0) + NUM_CLASSES)
6169 # define N2 ((N1) + NUM_CLASSES)
6170 # define N3 ((N2) + NUM_CLASSES)
6171 # define N4 ((N3) + NUM_CLASSES)
6172 # define N5 ((N4) + NUM_CLASSES)
6173 # define N6 ((N5) + NUM_CLASSES)
6174 # define N7 ((N6) + NUM_CLASSES)
6175 # define N8 ((N7) + NUM_CLASSES)
6176 # define N9 ((N8) + NUM_CLASSES)
6177 # define N10 ((N9) + NUM_CLASSES)
6178 # define N11 ((N10) + NUM_CLASSES)
6180 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
6181 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6182 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6183 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
6185 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
6186 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6187 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6188 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6189 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6190 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6191 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6192 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6193 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6196 /* And below is yet another version of the above tables that accepts only UTF-8
6197 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6198 * it allows non-characters. This is isomorphic to the original table
6199 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6213 * F1-F3 6 (6 bits can be stripped)
6214 * F4 5 (only 5 can be stripped)
6218 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6219 /* The first part of the table maps bytes to character classes to reduce
6220 * the size of the transition table and create bitmasks. */
6221 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6222 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6223 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6224 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6225 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6226 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6227 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6228 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6229 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6230 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6231 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6232 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6233 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6234 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6235 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6236 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6238 /* The second part is a transition table that maps a combination
6239 * of a state of the automaton and a character class to a new state, called a
6240 * node. The nodes are:
6241 * N0 The initial state, and final accepting one.
6242 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6243 * immediately when the start byte indicates a two-byte sequence
6244 * N2 Any two continuation bytes left.
6245 * N3 Any three continuation bytes left.
6246 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6247 * the other continuations transition to state N1
6248 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6249 * so are illegal. The other continuations transition to state N1.
6250 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6251 * the other continuations transition to N2
6252 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6253 * (non-unicode); the other continuations transition to N2
6254 * 1 Reject. All transitions not mentioned above (except the single
6255 * byte ones (as they are always legal) are to this state.
6267 # define NUM_CLASSES 12
6269 # define N1 ((N0) + NUM_CLASSES)
6270 # define N2 ((N1) + NUM_CLASSES)
6271 # define N3 ((N2) + NUM_CLASSES)
6272 # define N4 ((N3) + NUM_CLASSES)
6273 # define N5 ((N4) + NUM_CLASSES)
6274 # define N6 ((N5) + NUM_CLASSES)
6275 # define N7 ((N6) + NUM_CLASSES)
6277 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6278 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6279 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6280 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6281 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6283 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6284 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6285 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6286 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6289 # endif /* defined(PERL_CORE) */
6290 # else /* End of is DOINIT */
6292 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6293 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6294 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6297 #endif /* end of isn't EBCDIC */
6299 #include "overload.h"
6308 CV* table[NofAMmeth];
6310 struct am_table_short {
6316 typedef struct am_table AMT;
6317 typedef struct am_table_short AMTS;
6319 #define AMGfallNEVER 1
6321 #define AMGfallYES 3
6323 #define AMTf_AMAGIC 1
6324 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6325 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6326 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6328 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6331 * some compilers like to redefine cos et alia as faster
6332 * (and less accurate?) versions called F_cos et cetera (Quidquid
6333 * latine dictum sit, altum viditur.) This trick collides with
6334 * the Perl overloading (amg). The following #defines fool both.
6339 # define F_atan2_amg atan2_amg
6342 # define F_cos_amg cos_amg
6345 # define F_exp_amg exp_amg
6348 # define F_log_amg log_amg
6351 # define F_pow_amg pow_amg
6354 # define F_sin_amg sin_amg
6357 # define F_sqrt_amg sqrt_amg
6359 #endif /* _FASTMATH */
6361 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6362 PERLDBf_NOOPT | PERLDBf_INTER | \
6363 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6364 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6366 /* No _NONAME, _GOTO */
6367 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6368 #define PERLDBf_LINE 0x02 /* Keep line # */
6369 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6370 #define PERLDBf_INTER 0x08 /* Preserve more data for
6371 later inspections */
6372 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6373 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6374 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6375 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6376 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6377 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6378 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6379 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6380 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6382 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6383 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6384 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6385 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6386 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6387 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6388 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6389 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6390 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6391 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6392 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6393 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6394 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6396 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6399 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6400 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6401 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6402 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6403 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6404 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6405 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6406 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6408 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6409 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6410 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6411 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6412 # define USER_PROP_MUTEX_INIT NOOP
6413 # define USER_PROP_MUTEX_LOCK NOOP
6414 # define USER_PROP_MUTEX_UNLOCK NOOP
6415 # define USER_PROP_MUTEX_TERM NOOP
6418 #ifdef USE_LOCALE /* These locale things are all subject to change */
6420 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6422 # define IN_LOCALE_RUNTIME (PL_curcop \
6423 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6425 /* Returns TRUE if either form of the locale pragma is in effect */
6426 # define IN_SOME_LOCALE_FORM_RUNTIME \
6427 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6429 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6430 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6431 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6434 =for apidoc_section $locale
6436 =for apidoc Amn|bool|IN_LOCALE
6438 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6439 locale>>) is in effect.
6441 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6443 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6444 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6446 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6448 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6449 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6454 # define IN_LOCALE \
6455 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6456 # define IN_SOME_LOCALE_FORM \
6457 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6458 : IN_SOME_LOCALE_FORM_RUNTIME)
6460 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6461 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6463 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6464 # define IN_LC_PARTIAL_RUNTIME \
6465 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6467 # define IN_LC_COMPILETIME(category) \
6468 ( IN_LC_ALL_COMPILETIME \
6469 || ( IN_LC_PARTIAL_COMPILETIME \
6470 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6471 # define IN_LC_RUNTIME(category) \
6472 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6473 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6474 # define IN_LC(category) \
6475 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6477 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6479 /* This internal macro should be called from places that operate under
6480 * locale rules. If there is a problem with the current locale that
6481 * hasn't been raised yet, it will output a warning this time. Because
6482 * this will so rarely be true, there is no point to optimize for time;
6483 * instead it makes sense to minimize space used and do all the work in
6484 * the rarely called function */
6485 # ifdef USE_LOCALE_CTYPE
6486 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6488 if (UNLIKELY(PL_warn_locale)) { \
6489 Perl__warn_problematic_locale(); \
6493 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6497 /* These two internal macros are called when a warning should be raised,
6498 * and will do so if enabled. The first takes a single code point
6499 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6500 * string, and an end position which it won't try to read past */
6501 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6503 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6504 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6505 "Wide character (U+%" UVXf ") in %s",\
6506 (UV) cp, OP_DESC(PL_op)); \
6510 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6511 STMT_START { /* Check if to warn before doing the conversion work */\
6512 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6513 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6514 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6515 "Wide character (U+%" UVXf ") in %s", \
6517 ? UNICODE_REPLACEMENT \
6523 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6524 #else /* No locale usage */
6525 # define IN_LOCALE_RUNTIME 0
6526 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6527 # define IN_LOCALE_COMPILETIME 0
6528 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6529 # define IN_LOCALE 0
6530 # define IN_SOME_LOCALE_FORM 0
6531 # define IN_LC_ALL_COMPILETIME 0
6532 # define IN_LC_ALL_RUNTIME 0
6533 # define IN_LC_PARTIAL_COMPILETIME 0
6534 # define IN_LC_PARTIAL_RUNTIME 0
6535 # define IN_LC_COMPILETIME(category) 0
6536 # define IN_LC_RUNTIME(category) 0
6537 # define IN_LC(category) 0
6538 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6539 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6540 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6544 /* Locale/thread synchronization macros. */
6545 #if ! ( defined(USE_LOCALE) \
6546 && defined(USE_ITHREADS) \
6547 && ( ! defined(USE_THREAD_SAFE_LOCALE) \
6548 || ( defined(HAS_LOCALECONV) \
6549 && ( ! defined(HAS_LOCALECONV_L) \
6550 || defined(TS_W32_BROKEN_LOCALECONV))) \
6551 || ( defined(HAS_NL_LANGINFO) \
6552 && ! defined(HAS_THREAD_SAFE_NL_LANGINFO_L)) \
6553 || (defined(HAS_MBLEN) && ! defined(HAS_MBRLEN)) \
6554 || (defined(HAS_MBTOWC) && ! defined(HAS_MBRTOWC)) \
6555 || (defined(HAS_WCTOMB) && ! defined(HAS_WCRTOMB))))
6557 /* The whole expression just above was complemented, so here we have no need
6558 * for thread synchronization, most likely it would be that this isn't a
6559 * threaded build. */
6560 # define LOCALE_INIT
6561 # define LOCALE_TERM
6562 # define LC_NUMERIC_LOCK(cond) NOOP
6563 # define LC_NUMERIC_UNLOCK NOOP
6564 # define LOCALECONV_LOCK NOOP
6565 # define LOCALECONV_UNLOCK NOOP
6566 # define LOCALE_READ_LOCK NOOP
6567 # define LOCALE_READ_UNLOCK NOOP
6568 # define MBLEN_LOCK NOOP
6569 # define MBLEN_UNLOCK NOOP
6570 # define MBTOWC_LOCK NOOP
6571 # define MBTOWC_UNLOCK NOOP
6572 # define NL_LANGINFO_LOCK NOOP
6573 # define NL_LANGINFO_UNLOCK NOOP
6574 # define SETLOCALE_LOCK NOOP
6575 # define SETLOCALE_UNLOCK NOOP
6576 # define WCTOMB_LOCK NOOP
6577 # define WCTOMB_UNLOCK NOOP
6580 /* Here, we will need critical sections in locale handling, because one or
6581 * more of the above conditions are true. This could be because the
6582 * platform doesn't have thread-safe locales, or that at least one of the
6583 * locale-dependent functions in the core isn't thread-safe. The latter
6584 * case is generally because they return a pointer to a static buffer, which
6585 * may be per-process instead of per-thread. There are supposedly
6586 * re-entrant, safe versions for all of them Perl currently uses (which the
6587 * #if above checks for), but most platforms don't have all the needed ones
6588 * available, and the Posix standard doesn't require nl_langinfo_l() to be
6589 * fully thread-safe, so a Configure probe was written. localeconv_l() is
6590 * uncommon, and judging by bug reports on the web, some earlier library
6591 * localeconv_l versions were broken, so perhaps a probe is in order for
6592 * that, but it would be a pain to write.
6594 * On non-thread-safe systems, some of the above functions are vulnerable to
6595 * races should another thread get control and change the locale in the
6596 * middle of their execution.
6598 * We currently use a single mutex for all these cases. This solves both
6599 * the problem of another thread changing the locale, and the buffer being
6600 * overwritten (the code copies the results to a safe place before releasing
6601 * the mutex). Ideally, for locale thread-safe platforms where the only
6602 * issue is another thread clobbering the function's static buffer, there
6603 * would be a separate mutex for each such buffer. Otherwise, things get
6604 * locked that don't need to. But, it is not expected that any of these
6605 * will be called frequently, and the locked interval should be short, and
6606 * modern platforms will have reentrant versions (which don't lock) for
6607 * almost all of them, so khw thinks a single mutex should suffice. */
6608 # define LOCALE_LOCK_ \
6610 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6611 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6612 MUTEX_LOCK(&PL_locale_mutex); \
6614 # define LOCALE_UNLOCK_ \
6616 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6617 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6618 MUTEX_UNLOCK(&PL_locale_mutex); \
6621 /* We do define a different macro for each case; then if we want to have
6622 * separate mutexes for some of them, the only changes needed are here.
6623 * Define just the necessary macros. The compiler should then croak if the
6624 * #ifdef's in the code are incorrect */
6625 # if defined(HAS_LOCALECONV) && ( ! defined(HAS_POSIX_2008_LOCALE) \
6626 || ! defined(HAS_LOCALECONV_L) \
6627 || defined(TS_W32_BROKEN_LOCALECONV))
6628 # define LOCALECONV_LOCK LOCALE_LOCK_
6629 # define LOCALECONV_UNLOCK LOCALE_UNLOCK_
6631 # if defined(HAS_NL_LANGINFO) && ( ! defined(HAS_THREAD_SAFE_NL_LANGINFO_L) \
6632 || ! defined(HAS_POSIX_2008_LOCALE))
6633 # define NL_LANGINFO_LOCK LOCALE_LOCK_
6634 # define NL_LANGINFO_UNLOCK LOCALE_UNLOCK_
6636 # if defined(HAS_MBLEN) && ! defined(HAS_MBRLEN)
6637 # define MBLEN_LOCK LOCALE_LOCK_
6638 # define MBLEN_UNLOCK LOCALE_UNLOCK_
6640 # if defined(HAS_MBTOWC) && ! defined(HAS_MBRTOWC)
6641 # define MBTOWC_LOCK LOCALE_LOCK_
6642 # define MBTOWC_UNLOCK LOCALE_UNLOCK_
6644 # if defined(HAS_WCTOMB) && ! defined(HAS_WCRTOMB)
6645 # define WCTOMB_LOCK LOCALE_LOCK_
6646 # define WCTOMB_UNLOCK LOCALE_UNLOCK_
6648 # if defined(USE_THREAD_SAFE_LOCALE)
6649 /* On locale thread-safe systems, we don't need these workarounds */
6650 # define LOCALE_TERM_LC_NUMERIC_ NOOP
6651 # define LOCALE_INIT_LC_NUMERIC_ NOOP
6652 # define LC_NUMERIC_LOCK(cond) NOOP
6653 # define LC_NUMERIC_UNLOCK NOOP
6654 # define LOCALE_INIT_LC_NUMERIC_ NOOP
6655 # define LOCALE_TERM_LC_NUMERIC_ NOOP
6657 /* There may be instance core where we this is invoked yet should do
6658 * nothing. Rather than have #ifdef's around them, define it here */
6659 # define SETLOCALE_LOCK NOOP
6660 # define SETLOCALE_UNLOCK NOOP
6662 # define SETLOCALE_LOCK LOCALE_LOCK_
6663 # define SETLOCALE_UNLOCK LOCALE_UNLOCK_
6665 /* On platforms without per-thread locales, when another thread can switch
6666 * our locale, we need another mutex to create critical sections where we
6667 * want the LC_NUMERIC locale to be locked into either the C (standard)
6668 * locale, or the underlying locale, so that other threads interrupting
6669 * this one don't change it to the wrong state before we've had a chance to
6670 * complete our operation. It can stay locked over an entire printf
6671 * operation, for example. And so is made distinct from the LOCALE_LOCK
6674 * This simulates kind of a general semaphore. The current thread will
6675 * lock the mutex if the per-thread variable is zero, and then increments
6676 * that variable. Each corresponding UNLOCK decrements the variable until
6677 * it is 0, at which point it actually unlocks the mutex. Since the
6678 * variable is per-thread, there is no race with other threads.
6680 * The single argument is a condition to test for, and if true, to panic,
6681 * as this would be an attempt to complement the LC_NUMERIC state, and
6682 * we're not supposed to because it's locked.
6684 * Clang improperly gives warnings for this, if not silenced:
6685 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6687 * If LC_NUMERIC_LOCK is combined with one of the LOCKs above, calls to
6688 * that and its corresponding unlock should be contained entirely within
6689 * the locked portion of LC_NUMERIC. Those mutexes should be used only in
6690 * very short sections of code, while LC_NUMERIC_LOCK may span more
6691 * operations. By always following this convention, deadlock should be
6692 * impossible. But if necessary, the two mutexes could be combined. */
6693 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6694 CLANG_DIAG_IGNORE(-Wthread-safety) \
6696 if (PL_lc_numeric_mutex_depth <= 0) { \
6697 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6698 PL_lc_numeric_mutex_depth = 1; \
6699 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6700 "%s: %d: locking lc_numeric; depth=1\n", \
6701 __FILE__, __LINE__)); \
6704 PL_lc_numeric_mutex_depth++; \
6705 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6706 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6707 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6708 if (cond_to_panic_if_already_locked) { \
6709 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6710 " LC_NUMERIC incompatibly", \
6711 __FILE__, __LINE__); \
6716 # define LC_NUMERIC_UNLOCK \
6718 if (PL_lc_numeric_mutex_depth <= 1) { \
6719 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6720 PL_lc_numeric_mutex_depth = 0; \
6721 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6722 "%s: %d: unlocking lc_numeric; depth=0\n", \
6723 __FILE__, __LINE__)); \
6726 PL_lc_numeric_mutex_depth--; \
6727 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6728 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6729 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6734 # define LOCALE_INIT_LC_NUMERIC_ MUTEX_INIT(&PL_lc_numeric_mutex)
6735 # define LOCALE_TERM_LC_NUMERIC_ MUTEX_DESTROY(&PL_lc_numeric_mutex)
6738 # ifdef USE_POSIX_2008_LOCALE
6739 /* We have a locale object holding the 'C' locale for Posix 2008 */
6740 # define LOCALE_TERM_POSIX_2008_ \
6742 if (PL_C_locale_obj) { \
6743 /* Make sure we aren't using the locale \
6744 * space we are about to free */ \
6745 uselocale(LC_GLOBAL_LOCALE); \
6746 freelocale(PL_C_locale_obj); \
6747 PL_C_locale_obj = (locale_t) NULL; \
6751 # define LOCALE_TERM_POSIX_2008_ NOOP
6754 # define LOCALE_INIT STMT_START { \
6755 MUTEX_INIT(&PL_locale_mutex); \
6756 LOCALE_INIT_LC_NUMERIC_; \
6759 # define LOCALE_TERM STMT_START { \
6760 MUTEX_DESTROY(&PL_locale_mutex); \
6761 LOCALE_TERM_LC_NUMERIC_; \
6762 LOCALE_TERM_POSIX_2008_; \
6766 #ifdef USE_LOCALE_NUMERIC
6768 /* These macros are for toggling between the underlying locale (UNDERLYING or
6769 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6770 * locale if the underlying locale is indistinguishable from it in the numeric
6771 * operations used by Perl, namely the decimal point, and even the thousands
6774 =for apidoc_section $locale
6776 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6778 This macro should be used as a statement. It declares a private variable
6779 (whose name begins with an underscore) that is needed by the other macros in
6780 this section. Failing to include this correctly should lead to a syntax error.
6781 For compatibility with C89 C compilers it should be placed in a block before
6782 any executable statements.
6784 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6786 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
6787 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6788 underlying locale. (The perl interpreter could be wrong about what the
6789 underlying locale actually is if some C or XS code has called the C library
6790 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6791 this macro will update perl's records.)
6793 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6794 declare at compile time a private variable used by this macro. This macro
6795 should be called as a single statement, not an expression, but with an empty
6796 argument list, like this:
6799 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6801 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6803 RESTORE_LC_NUMERIC();
6807 The private variable is used to save the current locale state, so
6808 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6810 On threaded perls not operating with thread-safe functionality, this macro uses
6811 a mutex to force a critical section. Therefore the matching RESTORE should be
6812 close by, and guaranteed to be called.
6814 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6816 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6817 This locale category is generally kept set to a locale where the decimal radix
6818 character is a dot, and the separator between groups of digits is empty. This
6819 is because most XS code that reads floating point numbers is expecting them to
6822 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6823 aware of locale if the call to the XS or C code from the Perl program is
6824 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6825 instead from outside such scope.
6827 This macro is the start of wrapping the C or XS code; the wrap ending is done
6828 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6829 the state can be changed that will adversely affect other XS code.
6831 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6832 declare at compile time a private variable used by this macro. This macro
6833 should be called as a single statement, not an expression, but with an empty
6834 argument list, like this:
6837 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6839 STORE_LC_NUMERIC_SET_TO_NEEDED();
6841 RESTORE_LC_NUMERIC();
6845 On threaded perls not operating with thread-safe functionality, this macro uses
6846 a mutex to force a critical section. Therefore the matching RESTORE should be
6847 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6848 for a more contained way to ensure that.
6850 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6852 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6853 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6854 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6855 cannot have changed since the precalculation.
6857 =for apidoc Am|void|RESTORE_LC_NUMERIC
6859 This is used in conjunction with one of the macros
6860 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6861 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6862 C<LC_NUMERIC> state.
6864 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6865 declare at compile time a private variable used by this macro and the two
6866 C<STORE> ones. This macro should be called as a single statement, not an
6867 expression, but with an empty argument list, like this:
6870 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6872 RESTORE_LC_NUMERIC();
6876 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6878 This macro invokes the supplied statement or block within the context
6879 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6882 WITH_LC_NUMERIC_SET_TO_NEEDED(
6883 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6889 #ifdef USE_LOCALE_NUMERIC
6890 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6891 STORE_LC_NUMERIC_SET_TO_NEEDED();
6893 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6894 #ifdef USE_LOCALE_NUMERIC
6895 RESTORE_LC_NUMERIC();
6899 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6901 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6902 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6903 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6904 cannot have changed since the precalculation.
6910 /* If the underlying numeric locale has a non-dot decimal point or has a
6911 * non-empty floating point thousands separator, the current locale is instead
6912 * generally kept in the C locale instead of that underlying locale. The
6913 * current status is known by looking at two words. One is non-zero if the
6914 * current numeric locale is the standard C/POSIX one or is indistinguishable
6915 * from C. The other is non-zero if the current locale is the underlying
6916 * locale. Both can be non-zero if, as often happens, the underlying locale is
6917 * C or indistinguishable from it.
6919 * khw believes the reason for the variables instead of the bits in a single
6920 * word is to avoid having to have masking instructions. */
6922 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6924 /* We can lock the category to stay in the C locale, making requests to the
6925 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6927 # define _NOT_IN_NUMERIC_UNDERLYING \
6928 (! PL_numeric_underlying && PL_numeric_standard < 2)
6930 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6931 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6933 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6935 bool _in_lc_numeric = (in); \
6937 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6938 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6939 if (_in_lc_numeric) { \
6940 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6941 Perl_set_numeric_underlying(aTHX); \
6942 _restore_LC_NUMERIC_function \
6943 = &Perl_set_numeric_standard; \
6947 if (_NOT_IN_NUMERIC_STANDARD) { \
6948 Perl_set_numeric_standard(aTHX); \
6949 _restore_LC_NUMERIC_function \
6950 = &Perl_set_numeric_underlying; \
6955 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6956 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6958 # define RESTORE_LC_NUMERIC() \
6960 if (_restore_LC_NUMERIC_function) { \
6961 _restore_LC_NUMERIC_function(aTHX); \
6963 LC_NUMERIC_UNLOCK; \
6966 /* The next two macros set unconditionally. These should be rarely used, and
6967 * only after being sure that this is what is needed */
6968 # define SET_NUMERIC_STANDARD() \
6970 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6971 "%s: %d: lc_numeric standard=%d\n", \
6972 __FILE__, __LINE__, PL_numeric_standard)); \
6973 Perl_set_numeric_standard(aTHX); \
6974 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6975 "%s: %d: lc_numeric standard=%d\n", \
6976 __FILE__, __LINE__, PL_numeric_standard)); \
6979 # define SET_NUMERIC_UNDERLYING() \
6981 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6982 Perl_set_numeric_underlying(aTHX); \
6986 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6987 * the RESTORE_foo ones called to switch back, but only if need be */
6988 # define STORE_LC_NUMERIC_SET_STANDARD() \
6990 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6991 if (_NOT_IN_NUMERIC_STANDARD) { \
6992 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6993 Perl_set_numeric_standard(aTHX); \
6997 /* Rarely, we want to change to the underlying locale even outside of 'use
6998 * locale'. This is principally in the POSIX:: functions */
6999 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
7001 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
7002 if (_NOT_IN_NUMERIC_UNDERLYING) { \
7003 Perl_set_numeric_underlying(aTHX); \
7004 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
7008 /* Lock/unlock to the C locale until unlock is called. This needs to be
7009 * recursively callable. [perl #128207] */
7010 # define LOCK_LC_NUMERIC_STANDARD() \
7012 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7013 "%s: %d: lc_numeric_standard now locked to depth %d\n", \
7014 __FILE__, __LINE__, PL_numeric_standard)); \
7015 __ASSERT_(PL_numeric_standard) \
7016 PL_numeric_standard++; \
7019 # define UNLOCK_LC_NUMERIC_STANDARD() \
7021 if (PL_numeric_standard > 1) { \
7022 PL_numeric_standard--; \
7027 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
7028 "%s: %d: ", __FILE__, __LINE__); \
7029 if (PL_numeric_standard <= 1) \
7030 PerlIO_printf(Perl_debug_log, \
7031 "lc_numeric_standard now unlocked\n");\
7032 else PerlIO_printf(Perl_debug_log, \
7033 "lc_numeric_standard lock decremented to depth %d\n", \
7034 PL_numeric_standard););\
7037 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
7039 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
7040 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
7042 RESTORE_LC_NUMERIC(); \
7045 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
7046 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
7048 #else /* !USE_LOCALE_NUMERIC */
7050 # define SET_NUMERIC_STANDARD()
7051 # define SET_NUMERIC_UNDERLYING()
7052 # define IS_NUMERIC_RADIX(a, b) (0)
7053 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
7054 # define STORE_LC_NUMERIC_SET_STANDARD()
7055 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
7056 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
7057 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
7058 # define RESTORE_LC_NUMERIC()
7059 # define LOCK_LC_NUMERIC_STANDARD()
7060 # define UNLOCK_LC_NUMERIC_STANDARD()
7061 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
7062 STMT_START { block; } STMT_END
7063 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
7064 STMT_START { block; } STMT_END
7066 #endif /* !USE_LOCALE_NUMERIC */
7069 # define ENV_LOCK PERL_WRITE_LOCK(&PL_env_mutex)
7070 # define ENV_UNLOCK PERL_WRITE_UNLOCK(&PL_env_mutex)
7071 # define ENV_READ_LOCK PERL_READ_LOCK(&PL_env_mutex)
7072 # define ENV_READ_UNLOCK PERL_READ_UNLOCK(&PL_env_mutex)
7073 # define ENV_INIT PERL_RW_MUTEX_INIT(&PL_env_mutex)
7074 # define ENV_TERM PERL_RW_MUTEX_DESTROY(&PL_env_mutex)
7076 /* On platforms where the static buffer contained in getenv() is per-thread
7077 * rather than process-wide, another thread executing a getenv() at the same
7078 * time won't destroy ours before we have copied the result safely away and
7079 * unlocked the mutex. On such platforms (which is most), we can have many
7080 * readers of the environment at the same time. */
7081 # ifdef GETENV_PRESERVES_OTHER_THREAD
7082 # define GETENV_LOCK ENV_READ_LOCK
7083 # define GETENV_UNLOCK ENV_READ_UNLOCK
7085 /* If, on the other hand, another thread could zap our getenv() return, we
7086 * need to keep them from executing until we are done */
7087 # define GETENV_LOCK ENV_LOCK
7088 # define GETENV_UNLOCK ENV_UNLOCK
7091 # define ENV_LOCK NOOP
7092 # define ENV_UNLOCK NOOP
7093 # define ENV_READ_LOCK NOOP
7094 # define ENV_READ_UNLOCK NOOP
7095 # define ENV_INIT NOOP
7096 # define ENV_TERM NOOP
7097 # define GETENV_LOCK NOOP
7098 # define GETENV_UNLOCK NOOP
7101 #ifndef PERL_NO_INLINE_FUNCTIONS
7102 /* Static inline funcs that depend on includes and declarations above.
7103 Some of these reference functions in the perl object files, and some
7104 compilers aren't smart enough to eliminate unused static inline
7105 functions, so including this file in source code can cause link errors
7106 even if the source code uses none of the functions. Hence including these
7107 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
7108 (obviously) result in unworkable XS code, but allows simple probing code
7109 to continue to work, because it permits tests to include the perl headers
7110 for definitions without creating a link dependency on the perl library
7111 (which may not exist yet).
7116 # include "inline.h"
7122 /* Some critical sections need to lock both the locale and the environment.
7123 * XXX khw intends to change this to lock both mutexes, but that brings up
7124 * issues of potential deadlock, so should be done at the beginning of a
7125 * development cycle. So for now, it just locks the environment. Note that
7126 * many modern platforms are locale-thread-safe anyway, so locking the locale
7127 * mutex is a no-op anyway */
7128 #define ENV_LOCALE_LOCK ENV_LOCK
7129 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
7131 /* And some critical sections care only that no one else is writing either the
7132 * locale nor the environment. XXX Again this is for the future. This can be
7133 * simulated with using COND_WAIT in thread.h */
7134 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
7135 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
7137 #define Atof my_atof
7141 =for apidoc_section $numeric
7143 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
7145 This is a synonym for L</my_strtod>.
7147 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
7149 Platform and configuration independent C<strtol>. This expands to the
7150 appropriate C<strotol>-like function based on the platform and F<Configure>
7151 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
7154 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
7156 Platform and configuration independent C<strtoul>. This expands to the
7157 appropriate C<strotoul>-like function based on the platform and F<Configure>
7158 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
7165 #define Strtod my_strtod
7167 #if defined(HAS_STRTOD) \
7168 || defined(USE_QUADMATH) \
7169 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
7170 && defined(USE_LONG_DOUBLE))
7171 # define Perl_strtod Strtod
7174 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
7175 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7177 # define strtoll __strtoll /* secret handshake */
7179 # if defined(WIN64) && defined(_MSC_VER)
7180 # define strtoll _strtoi64 /* secret handshake */
7182 # if !defined(Strtol) && defined(HAS_STRTOLL)
7183 # define Strtol strtoll
7185 # if !defined(Strtol) && defined(HAS_STRTOQ)
7186 # define Strtol strtoq
7188 /* is there atoq() anywhere? */
7190 #if !defined(Strtol) && defined(HAS_STRTOL)
7191 # define Strtol strtol
7194 /* It would be more fashionable to use Strtol() to define atol()
7195 * (as is done for Atoul(), see below) but for backward compatibility
7196 * we just assume atol(). */
7197 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
7198 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7200 # define atoll _atoi64 /* secret handshake */
7208 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
7209 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
7211 # define strtoull __strtoull /* secret handshake */
7213 # if defined(WIN64) && defined(_MSC_VER)
7214 # define strtoull _strtoui64 /* secret handshake */
7216 # if !defined(Strtoul) && defined(HAS_STRTOULL)
7217 # define Strtoul strtoull
7219 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
7220 # define Strtoul strtouq
7222 /* is there atouq() anywhere? */
7224 #if !defined(Strtoul) && defined(HAS_STRTOUL)
7225 # define Strtoul strtoul
7227 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
7228 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
7231 # define Atoul(s) Strtoul(s, NULL, 10)
7234 #define grok_bin(s,lp,fp,rp) \
7235 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
7236 #define grok_oct(s,lp,fp,rp) \
7237 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
7238 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
7239 #define grok_hex(s,lp,fp,rp) \
7240 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
7242 #ifndef PERL_SCRIPT_MODE
7243 #define PERL_SCRIPT_MODE "r"
7246 /* not used. Kept as a NOOP for backcompat */
7247 #define PERL_STACK_OVERFLOW_CHECK() NOOP
7250 * Some nonpreemptive operating systems find it convenient to
7251 * check for asynchronous conditions after each op execution.
7252 * Keep this check simple, or it may slow down execution
7257 # ifndef PERL_ASYNC_CHECK
7258 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
7262 #ifndef PERL_ASYNC_CHECK
7263 # define PERL_ASYNC_CHECK() NOOP
7267 * On some operating systems, a memory allocation may succeed,
7268 * but put the process too close to the system's comfort limit.
7269 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
7272 #ifndef PERL_ALLOC_CHECK
7273 #define PERL_ALLOC_CHECK(p) NOOP
7277 # include <sys/ipc.h>
7278 # include <sys/sem.h>
7279 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
7282 struct semid_ds *buf;
7283 unsigned short *array;
7286 # ifdef USE_SEMCTL_SEMUN
7287 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
7288 union gccbug_semun {
7290 struct semid_ds *buf;
7291 unsigned short *array;
7294 # define semun gccbug_semun
7296 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
7297 # elif defined(USE_SEMCTL_SEMID_DS)
7298 # ifdef EXTRA_F_IN_SEMUN_BUF
7299 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
7301 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
7307 * Boilerplate macros for initializing and accessing interpreter-local
7308 * data from C. All statics in extensions should be reworked to use
7309 * this, if you want to make the extension thread-safe. See
7310 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
7311 * and perlxs.pod for more.
7313 * Code that uses these macros is responsible for the following:
7314 * 1. #define MY_CXT_KEY to a unique string, e.g.
7315 * "DynaLoader::_guts" XS_VERSION
7316 * XXX in the current implementation, this string is ignored.
7317 * 2. Declare a typedef named my_cxt_t that is a structure that contains
7318 * all the data that needs to be interpreter-local.
7319 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
7320 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
7321 * (typically put in the BOOT: section).
7322 * 5. Use the members of the my_cxt_t structure everywhere as
7324 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
7328 #if defined(MULTIPLICITY)
7330 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
7331 * right after the definition (i.e. at file scope). The non-threads
7332 * case below uses it to declare the data as static. */
7333 # define START_MY_CXT static int my_cxt_index = -1;
7334 # define MY_CXT_INDEX my_cxt_index
7335 # define MY_CXT_INIT_ARG &my_cxt_index
7337 /* Creates and zeroes the per-interpreter data.
7338 * (We allocate my_cxtp in a Perl SV so that it will be released when
7339 * the interpreter goes away.) */
7340 # define MY_CXT_INIT \
7341 my_cxt_t *my_cxtp = \
7342 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7343 PERL_UNUSED_VAR(my_cxtp)
7344 # define MY_CXT_INIT_INTERP(my_perl) \
7345 my_cxt_t *my_cxtp = \
7346 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7347 PERL_UNUSED_VAR(my_cxtp)
7349 /* This declaration should be used within all functions that use the
7350 * interpreter-local data. */
7352 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7353 # define dMY_CXT_INTERP(my_perl) \
7354 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7356 /* Clones the per-interpreter data. */
7357 # define MY_CXT_CLONE \
7358 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7359 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7360 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7361 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7365 /* This macro must be used to access members of the my_cxt_t structure.
7366 * e.g. MY_CXT.some_data */
7367 # define MY_CXT (*my_cxtp)
7369 /* Judicious use of these macros can reduce the number of times dMY_CXT
7370 * is used. Use is similar to pTHX, aTHX etc. */
7371 # define pMY_CXT my_cxt_t *my_cxtp
7372 # define pMY_CXT_ pMY_CXT,
7373 # define _pMY_CXT ,pMY_CXT
7374 # define aMY_CXT my_cxtp
7375 # define aMY_CXT_ aMY_CXT,
7376 # define _aMY_CXT ,aMY_CXT
7378 #else /* MULTIPLICITY */
7379 # define START_MY_CXT static my_cxt_t my_cxt;
7380 # define dMY_CXT dNOOP
7381 # define dMY_CXT_INTERP(my_perl) dNOOP
7382 # define MY_CXT_INIT NOOP
7383 # define MY_CXT_CLONE NOOP
7384 # define MY_CXT my_cxt
7386 # define pMY_CXT void
7393 #endif /* !defined(MULTIPLICITY) */
7404 # undef FD_CLOEXEC /* a lie in AmigaOS */
7408 # include <sys/file.h>
7411 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7412 EXTERN_C int flock(int fd, int op);
7416 /* Assume UNIX defaults */
7417 # define O_RDONLY 0000
7418 # define O_WRONLY 0001
7419 # define O_RDWR 0002
7420 # define O_CREAT 0100
7431 #if O_TEXT != O_BINARY
7432 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7433 * that is, you are somehow DOSish. */
7434 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7435 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7436 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7437 /* VOS has O_TEXT != O_BINARY, and they have effect,
7438 * but VOS always uses LF, never CRLF. */
7439 /* If you have O_TEXT different from your O_BINARY but you still are
7440 * not a CRLF shop. */
7441 # undef PERLIO_USING_CRLF
7443 /* If you really are DOSish. */
7444 # define PERLIO_USING_CRLF 1
7449 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7452 #ifndef EXEC_ARGV_CAST
7453 #define EXEC_ARGV_CAST(x) (char **)x
7456 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7457 int). value returned in pointed-
7459 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7460 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7461 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7462 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7463 #define IS_NUMBER_NAN 0x20 /* this is not */
7464 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7467 =for apidoc_section $numeric
7469 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7471 A synonym for L</grok_numeric_radix>
7475 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7477 /* Number scan flags. All are used for input, the ones used for output are so
7479 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7480 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7482 /* grok_??? input: ignored; output: found overflow */
7483 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7485 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7486 * this isn't set on output if one is found. Instead, see
7487 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7488 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7490 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7491 and set IS_NUMBER_TRAILING */
7493 /* These are considered experimental, so not exposed publicly */
7494 #if defined(PERL_CORE) || defined(PERL_EXT)
7495 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7496 * output: found such a number */
7497 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7499 /* If this is set on input, and no illegal digit is found, it will be cleared
7500 * on output; otherwise unchanged */
7501 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7503 /* Don't warn on overflow; output flag still set */
7504 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7506 /* Forbid a leading underscore, which the other one doesn't */
7507 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7511 /* to let user control profiling */
7512 #ifdef PERL_GPROF_CONTROL
7513 extern void moncontrol(int);
7514 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7516 #define PERL_GPROF_MONCONTROL(x)
7519 /* ISO 6429 NEL - C1 control NExt Line */
7520 /* See https://www.unicode.org/reports/tr13/ */
7521 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7523 #ifndef PIPESOCK_MODE
7524 # define PIPESOCK_MODE
7527 #ifndef SOCKET_OPEN_MODE
7528 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7531 #ifndef PIPE_OPEN_MODE
7532 # define PIPE_OPEN_MODE PIPESOCK_MODE
7535 #define PERL_MAGIC_UTF8_CACHESIZE 2
7539 #define PERL_UNICODE_STDIN_FLAG 0x0001
7540 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7541 #define PERL_UNICODE_STDERR_FLAG 0x0004
7542 #define PERL_UNICODE_IN_FLAG 0x0008
7543 #define PERL_UNICODE_OUT_FLAG 0x0010
7544 #define PERL_UNICODE_ARGV_FLAG 0x0020
7545 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7546 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7547 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7549 #define PERL_UNICODE_STD_FLAG \
7550 (PERL_UNICODE_STDIN_FLAG | \
7551 PERL_UNICODE_STDOUT_FLAG | \
7552 PERL_UNICODE_STDERR_FLAG)
7554 #define PERL_UNICODE_INOUT_FLAG \
7555 (PERL_UNICODE_IN_FLAG | \
7556 PERL_UNICODE_OUT_FLAG)
7558 #define PERL_UNICODE_DEFAULT_FLAGS \
7559 (PERL_UNICODE_STD_FLAG | \
7560 PERL_UNICODE_INOUT_FLAG | \
7561 PERL_UNICODE_LOCALE_FLAG)
7563 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7565 #define PERL_UNICODE_STDIN 'I'
7566 #define PERL_UNICODE_STDOUT 'O'
7567 #define PERL_UNICODE_STDERR 'E'
7568 #define PERL_UNICODE_STD 'S'
7569 #define PERL_UNICODE_IN 'i'
7570 #define PERL_UNICODE_OUT 'o'
7571 #define PERL_UNICODE_INOUT 'D'
7572 #define PERL_UNICODE_ARGV 'A'
7573 #define PERL_UNICODE_LOCALE 'L'
7574 #define PERL_UNICODE_WIDESYSCALLS 'W'
7575 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7580 =for apidoc_section $signals
7581 =for apidoc Amn|U32|PERL_SIGNALS_UNSAFE_FLAG
7582 If this bit in C<PL_signals> is set, the system is uing the pre-Perl 5.8
7583 unsafe signals. See L<perlrun/PERL_SIGNALS> and L<perlipc/Deferred Signals
7588 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7591 =for apidoc_section $numeric
7593 =for apidoc Am|int|PERL_ABS|int x
7595 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7596 integers, but it works for any type.) Use instead of these, since the C
7597 library ones force their argument to be what it is expecting, potentially
7598 leading to disaster. But also beware that this evaluates its argument twice,
7604 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7606 #if defined(__DECC) && defined(__osf__)
7607 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7610 #define do_open(g, n, l, a, rm, rp, sf) \
7611 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7612 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7613 # define do_exec(cmd) do_exec3(cmd,0,0)
7616 # define do_aexec Perl_do_aexec
7618 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7623 =for apidoc_section $utility
7625 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7627 Same as L</is_safe_syscall>.
7631 Allows one ending \0
7633 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7635 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7637 #if defined(OEMVS) || defined(__amigaos4__)
7638 #define NO_ENV_ARRAY_IN_MAIN
7641 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7642 * are here so that they are available throughout the core
7643 * NOTE that even though some are for _escape and some for _pretty
7644 * there must not be any clashes as the flags from _pretty are
7645 * passed straight through to _escape.
7648 #define PERL_PV_ESCAPE_QUOTE 0x000001
7649 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7651 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7652 #define PERL_PV_PRETTY_LTGT 0x000004
7653 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7655 #define PERL_PV_ESCAPE_UNI 0x000100
7656 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7657 #define PERL_PV_ESCAPE_NONASCII 0x000400
7658 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7660 #define PERL_PV_ESCAPE_ALL 0x001000
7661 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7662 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7663 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7664 #define PERL_PV_ESCAPE_RE 0x008000
7666 #define PERL_PV_ESCAPE_DWIM 0x010000
7669 /* used by pv_display in dump.c*/
7670 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7671 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7673 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7674 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7675 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7676 # define DOUBLE_IS_VAX_FLOAT
7678 # define DOUBLE_IS_IEEE_FORMAT
7681 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7682 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7683 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7684 # define DOUBLE_LITTLE_ENDIAN
7687 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7688 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7689 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7690 # define DOUBLE_BIG_ENDIAN
7693 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7694 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7695 # define DOUBLE_MIX_ENDIAN
7698 /* The VAX fp formats are neither consistently little-endian nor
7699 * big-endian, and neither are they really IEEE-mixed endian like
7700 * the mixed-endian ARM IEEE formats (with swapped bytes).
7701 * Ultimately, the VAX format came from the PDP-11.
7703 * The ordering of the parts in VAX floats is quite vexing.
7704 * In the below the fraction_n are the mantissa bits.
7706 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7707 * while the rightmost bit in each fraction is the least significant:
7708 * in other words, big-endian bit order within the fractions.
7710 * The fraction segments themselves would be big-endianly, except that
7711 * within 32 bit segments the less significant half comes first, the more
7712 * significant after, except that in the format H (used for long doubles)
7713 * the first fraction segment is alone, because the exponent is wider.
7714 * This means for example that both the most and the least significant
7715 * bits can be in the middle of the floats, not at either end.
7718 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7719 * http://www.quadibloc.com/comp/cp0201.htm
7720 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7721 * (somebody at HP should be fired for the URLs)
7723 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7724 * (exponent bias 128, hidden first one-bit)
7726 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7727 * fraction_4:16 fraction_3:16
7728 * (exponent bias 128, hidden first one-bit)
7730 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7731 * fraction_4:16 fraction_3:16
7732 * (exponent bias 1024, hidden first one-bit)
7734 * H fraction_1:16 sign:1 exp:15
7735 * fraction_3:16 fraction_2:16
7736 * fraction_5:16 fraction_4:16
7737 * fraction_7:16 fraction_6:16
7738 * (exponent bias 16384, hidden first one-bit)
7739 * (available only on VAX, and only on Fortran?)
7741 * The formats S, T and X are available on the Alpha (and Itanium,
7742 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7743 * binary32, binary64, and binary128 (commonly: float, double, long double).
7745 * S sign:1 exp:8 mantissa:23
7746 * (exponent bias 127, hidden first one-bit)
7748 * T sign:1 exp:11 mantissa:52
7749 * (exponent bias 1022, hidden first one-bit)
7751 * X sign:1 exp:15 mantissa:112
7752 * (exponent bias 16382, hidden first one-bit)
7756 #ifdef DOUBLE_IS_VAX_FLOAT
7757 # define DOUBLE_VAX_ENDIAN
7760 #ifdef DOUBLE_IS_IEEE_FORMAT
7761 /* All the basic IEEE formats have the implicit bit,
7762 * except for the x86 80-bit extended formats, which will undef this.
7763 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7764 * do not have the implicit bit of one. */
7765 # define NV_IMPLICIT_BIT
7768 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7770 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7771 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7772 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7773 # define LONGDOUBLE_LITTLE_ENDIAN
7776 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7777 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7778 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7779 # define LONGDOUBLE_BIG_ENDIAN
7782 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7783 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7784 # define LONGDOUBLE_MIX_ENDIAN
7787 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7788 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7789 # define LONGDOUBLE_X86_80_BIT
7790 # ifdef USE_LONG_DOUBLE
7791 # undef NV_IMPLICIT_BIT
7792 # define NV_X86_80_BIT
7796 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7797 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7798 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7799 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7800 # define LONGDOUBLE_DOUBLEDOUBLE
7803 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7804 # define LONGDOUBLE_VAX_ENDIAN
7807 #endif /* LONG_DOUBLEKIND */
7809 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7810 # if defined(DOUBLE_LITTLE_ENDIAN)
7811 # define NV_LITTLE_ENDIAN
7812 # elif defined(DOUBLE_BIG_ENDIAN)
7813 # define NV_BIG_ENDIAN
7814 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7815 # define NV_MIX_ENDIAN
7817 #elif NVSIZE == DOUBLESIZE
7818 # ifdef DOUBLE_LITTLE_ENDIAN
7819 # define NV_LITTLE_ENDIAN
7821 # ifdef DOUBLE_BIG_ENDIAN
7822 # define NV_BIG_ENDIAN
7824 # ifdef DOUBLE_MIX_ENDIAN
7825 # define NV_MIX_ENDIAN
7827 # ifdef DOUBLE_VAX_ENDIAN
7828 # define NV_VAX_ENDIAN
7830 #elif NVSIZE == LONG_DOUBLESIZE
7831 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7832 # define NV_LITTLE_ENDIAN
7834 # ifdef LONGDOUBLE_BIG_ENDIAN
7835 # define NV_BIG_ENDIAN
7837 # ifdef LONGDOUBLE_MIX_ENDIAN
7838 # define NV_MIX_ENDIAN
7840 # ifdef LONGDOUBLE_VAX_ENDIAN
7841 # define NV_VAX_ENDIAN
7845 /* We have somehow managed not to define the denormal/subnormal
7848 * This may happen if the compiler doesn't expose the C99 math like
7849 * the fpclassify() without some special switches. Perl tries to
7850 * stay C89, so for example -std=c99 is not an option.
7852 * The Perl_isinf() and Perl_isnan() should have been defined even if
7853 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7854 * from the C89 DBL_MIN or moral equivalent. */
7855 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7856 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7859 /* This is not a great fallback: subnormals tests will fail,
7860 * but at least Perl will link and 99.999% of tests will work. */
7861 #if !defined(Perl_fp_class_denorm)
7862 # define Perl_fp_class_denorm(x) FALSE
7865 #ifdef DOUBLE_IS_IEEE_FORMAT
7866 # define DOUBLE_HAS_INF
7867 # define DOUBLE_HAS_NAN
7870 #ifdef DOUBLE_HAS_NAN
7876 /* PL_inf and PL_nan initialization.
7878 * For inf and nan initialization the ultimate fallback is dividing
7879 * one or zero by zero: however, some compilers will warn or even fail
7880 * on divide-by-zero, but hopefully something earlier will work.
7882 * If you are thinking of using HUGE_VAL for infinity, or using
7883 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7884 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7885 * and the math functions might be just generating DBL_MAX, or even zero.
7887 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7888 * Though logically correct, some compilers (like Visual C 2003)
7889 * falsely misoptimize that to zero (x-x is always zero, right?)
7891 * Finally, note that not all floating point formats define Inf (or NaN).
7892 * For the infinity a large number may be used instead. Operations that
7893 * under the IEEE floating point would return Inf or NaN may return
7894 * either large numbers (positive or negative), or they may cause
7895 * a floating point exception or some other fault.
7898 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7899 # ifndef USE_CPLUSPLUS
7900 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7903 # ifdef USE_QUADMATH
7904 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7906 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7907 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7908 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7909 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7910 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7912 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7913 # if defined(LDBL_INFINITY)
7914 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7915 # elif defined(LDBL_INF)
7916 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7917 # elif defined(INFINITY)
7918 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7920 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7922 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7925 # if defined(DBL_INFINITY)
7926 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7927 # elif defined(DBL_INF)
7928 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7929 # elif defined(INFINITY) /* C99 */
7930 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7932 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7934 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7939 # ifdef USE_QUADMATH
7940 /* Cannot use nanq("0") for PL_nan because not a compile-time
7942 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7943 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7944 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7945 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7946 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7948 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7949 # if defined(LDBL_NAN)
7950 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7951 # elif defined(LDBL_QNAN)
7952 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7954 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7956 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7959 # if defined(DBL_NAN)
7960 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7961 # elif defined(DBL_QNAN)
7962 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7963 # elif defined(NAN) /* C99 */
7964 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7966 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7971 # ifndef USE_CPLUSPLUS
7972 GCC_DIAG_RESTORE_DECL;
7977 INFNAN_NV_U8_DECL PL_inf;
7978 INFNAN_NV_U8_DECL PL_nan;
7984 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7985 * we will define NV_INF/NV_NAN as the nv part of the global const
7986 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7987 * might not be a compile-time constant, in which case it cannot be
7988 * used to initialize PL_inf/PL_nan above. */
7990 # define NV_INF PL_inf.nv
7993 # define NV_NAN PL_nan.nv
7996 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7997 * "nan-ness". Part of the payload is the quiet/signaling bit.
7998 * To back up a bit (harhar):
8000 * For IEEE 754 64-bit formats [1]:
8002 * s 000 (mantissa all-zero) zero
8003 * s 000 (mantissa non-zero) subnormals (denormals)
8004 * s 001 ... 7fe normals
8007 * For IEEE 754 128-bit formats:
8009 * s 0000 (mantissa all-zero) zero
8010 * s 0000 (mantissa non-zero) subnormals (denormals)
8011 * s 0001 ... 7ffe normals
8014 * [1] this looks like big-endian, but applies equally to little-endian.
8016 * s = Sign bit. Yes, zeros and nans can have negative sign,
8017 * the interpretation is application-specific.
8019 * q = Quietness bit, the interpretation is platform-specific.
8020 * Most platforms have the most significant bit being one
8021 * meaning quiet, but some (older mips, hppa) have the msb
8022 * being one meaning signaling. Note that the above means
8023 * that on most platforms there cannot be signaling nan with
8024 * zero payload because that is identical with infinity;
8025 * while conversely on older mips/hppa there cannot be a quiet nan
8026 * because that is identical with infinity.
8028 * Moreover, whether there is any behavioral difference
8029 * between quiet and signaling NaNs, depends on the platform.
8031 * x86 80-bit extended precision is different, the mantissa bits:
8033 * 63 62 61 30387+ pre-387 visual c
8034 * -------- ---- -------- --------
8035 * 0 0 0 invalid infinity
8036 * 0 0 1 invalid snan
8037 * 0 1 0 invalid snan
8038 * 0 1 1 invalid snan
8039 * 1 0 0 infinity snan 1.#INF
8040 * 1 0 1 snan 1.#SNAN
8041 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
8042 * 1 1 1 qnan 1.#QNAN
8044 * This means that in this format there are 61 bits available
8045 * for the nan payload.
8047 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
8048 * simply cannot preserve the bit. You can either use the 80-bit
8049 * extended precision (long double, -Duselongdouble), or use x86-64.
8051 * In all platforms, the payload bytes (and bits, some of them are
8052 * often in a partial byte) themselves can be either all zero (x86),
8053 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
8054 * or in a double-double, the first half of the payload can follow the
8055 * native double, while in the second half the payload can be all
8056 * zeros. (Therefore the mask for payload bits is not necessarily
8057 * identical to bit complement of the NaN.) Another way of putting
8058 * this: the payload for the default NaN might not be zero.
8060 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
8061 * being 'packaged' in either 12 or 16 bytes) can be whatever random
8064 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
8065 * On normal floats, the sign bit being on means negative. But this may,
8066 * or may not, be reverted on NaNs: in other words, the default NaN might
8067 * have the sign bit on, and therefore look like negative if you look
8068 * at it at the bit level.
8070 * NaN payloads are not propagated even on copies, or in arithmetics.
8071 * They *might* be, according to some rules, on your particular
8072 * cpu/os/compiler/libraries, but no guarantees.
8074 * To summarize, on most platforms, and for 64-bit doubles
8075 * (using big-endian ordering here):
8077 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
8078 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
8079 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
8080 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
8082 * The C99 nan() is supposed to generate *quiet* NaNs.
8084 * Note the asymmetry:
8085 * The 7FF0000000000000 is positive infinity,
8086 * the FFF0000000000000 is negative infinity.
8089 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
8090 * For the standard IEEE 754 fp this number is usually one less that
8091 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
8092 * real. For the 80-bit extended precision formats (x86*), the number
8093 * of mantissa bits... depends. For normal floats, it's 64. But for
8094 * the inf/nan, it's different (zero for inf, 61 for nan).
8095 * NVMANTBITS works for normal floats. */
8097 /* We do not want to include the quiet/signaling bit. */
8098 #define NV_NAN_BITS (NVMANTBITS - 1)
8100 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
8101 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8102 # define NV_NAN_QS_BYTE_OFFSET 13
8103 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8104 # define NV_NAN_QS_BYTE_OFFSET 2
8105 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
8106 # define NV_NAN_QS_BYTE_OFFSET 7
8107 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8108 # define NV_NAN_QS_BYTE_OFFSET 2
8109 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8110 # define NV_NAN_QS_BYTE_OFFSET 13
8111 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8112 # define NV_NAN_QS_BYTE_OFFSET 1
8113 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8114 # define NV_NAN_QS_BYTE_OFFSET 9
8115 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8116 # define NV_NAN_QS_BYTE_OFFSET 6
8118 # error "Unexpected long double format"
8121 # ifdef USE_QUADMATH
8122 # ifdef NV_LITTLE_ENDIAN
8123 # define NV_NAN_QS_BYTE_OFFSET 13
8124 # elif defined(NV_BIG_ENDIAN)
8125 # define NV_NAN_QS_BYTE_OFFSET 2
8127 # error "Unexpected quadmath format"
8129 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8130 # define NV_NAN_QS_BYTE_OFFSET 2
8131 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8132 # define NV_NAN_QS_BYTE_OFFSET 1
8133 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8134 # define NV_NAN_QS_BYTE_OFFSET 6
8135 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8136 # define NV_NAN_QS_BYTE_OFFSET 1
8137 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8138 # define NV_NAN_QS_BYTE_OFFSET 13
8139 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8140 # define NV_NAN_QS_BYTE_OFFSET 2
8141 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8142 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
8143 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8144 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
8146 /* For example the VAX formats should never
8147 * get here because they do not have NaN. */
8148 # error "Unexpected double format"
8151 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
8152 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
8153 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
8154 * for the quiet/signaling */
8155 #if defined(USE_LONG_DOUBLE) && \
8156 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
8157 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
8158 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
8159 #elif defined(USE_LONG_DOUBLE) && \
8160 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
8161 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
8162 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
8163 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
8164 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
8166 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
8168 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
8169 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
8170 * (bytes ordered big-endianly) for the quiet/signaling bit
8171 * for the quiet/signaling */
8172 #define NV_NAN_QS_BIT_OFFSET \
8173 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
8174 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
8175 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
8176 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
8177 #define NV_NAN_QS_QUIET \
8178 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
8179 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
8180 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
8181 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
8182 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
8183 * Note however that these do not check whether the nvp is a NaN. */
8184 #define NV_NAN_IS_QUIET(nvp) \
8185 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
8186 #define NV_NAN_IS_SIGNALING(nvp) \
8187 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
8188 #define NV_NAN_SET_QUIET(nvp) \
8189 (NV_NAN_QS_QUIET ? \
8190 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
8191 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
8192 #define NV_NAN_SET_SIGNALING(nvp) \
8193 (NV_NAN_QS_QUIET ? \
8194 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
8195 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
8196 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
8198 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
8200 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
8201 * 0xFF means "don't go here".*/
8203 /* Shorthands to avoid typoses. */
8204 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
8205 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
8206 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
8207 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8208 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
8209 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
8210 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
8211 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
8212 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
8213 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
8214 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
8215 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
8216 NV_NAN_PAYLOAD_PERM_0_TO_7, \
8217 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
8218 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
8219 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8220 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8221 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
8222 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
8223 NV_NAN_PAYLOAD_PERM_7_TO_0
8224 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
8225 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
8226 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
8227 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
8228 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
8229 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8230 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
8231 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
8233 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
8234 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8235 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8236 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8237 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8238 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8239 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8240 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
8241 # if LONG_DOUBLESIZE == 10
8242 # define NV_NAN_PAYLOAD_MASK \
8243 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8245 # define NV_NAN_PAYLOAD_PERM \
8246 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
8247 # elif LONG_DOUBLESIZE == 12
8248 # define NV_NAN_PAYLOAD_MASK \
8249 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8250 0x00, 0x00, 0x00, 0x00
8251 # define NV_NAN_PAYLOAD_PERM \
8252 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
8253 # elif LONG_DOUBLESIZE == 16
8254 # define NV_NAN_PAYLOAD_MASK \
8255 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
8256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8257 # define NV_NAN_PAYLOAD_PERM \
8258 NV_NAN_PAYLOAD_PERM_0_TO_7, \
8259 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8261 # error "Unexpected x86 80-bit little-endian long double format"
8263 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8264 # if LONG_DOUBLESIZE == 10
8265 # define NV_NAN_PAYLOAD_MASK \
8266 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8268 # define NV_NAN_PAYLOAD_PERM \
8269 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
8270 # elif LONG_DOUBLESIZE == 12
8271 # define NV_NAN_PAYLOAD_MASK \
8272 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8273 0xff, 0xff, 0x00, 0x00
8274 # define NV_NAN_PAYLOAD_PERM \
8275 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
8276 # elif LONG_DOUBLESIZE == 16
8277 # define NV_NAN_PAYLOAD_MASK \
8278 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8279 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8280 # define NV_NAN_PAYLOAD_PERM \
8281 NV_NAN_PAYLOAD_PERM_7_TO_0, \
8282 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8284 # error "Unexpected x86 80-bit big-endian long double format"
8286 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8287 /* For double-double we assume only the first double (in LE or BE terms)
8288 * is used for NaN. */
8289 # define NV_NAN_PAYLOAD_MASK \
8290 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8291 # define NV_NAN_PAYLOAD_PERM \
8292 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8293 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8294 # define NV_NAN_PAYLOAD_MASK \
8295 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8296 # define NV_NAN_PAYLOAD_PERM \
8297 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8298 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8299 # define NV_NAN_PAYLOAD_MASK \
8300 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8301 # define NV_NAN_PAYLOAD_PERM \
8302 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8303 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8304 # define NV_NAN_PAYLOAD_MASK \
8305 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8306 # define NV_NAN_PAYLOAD_PERM \
8307 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8309 # error "Unexpected long double format"
8312 # ifdef USE_QUADMATH /* quadmath is not long double */
8313 # ifdef NV_LITTLE_ENDIAN
8314 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8315 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8316 # elif defined(NV_BIG_ENDIAN)
8317 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8318 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8320 # error "Unexpected quadmath format"
8322 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8323 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
8324 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
8325 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8326 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
8327 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
8328 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8329 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8330 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8331 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8332 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8333 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8334 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8335 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8336 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8337 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8338 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8339 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8340 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8341 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
8342 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
8343 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8344 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8345 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8347 # error "Unexpected double format"
8351 #endif /* DOUBLE_HAS_NAN */
8356 (KEEP THIS LAST IN perl.h!)
8398 so that Configure picks them up.
8400 (KEEP THIS LAST IN perl.h!)
8404 #endif /* Include guard */
8407 * ex: set ts=8 sts=4 sw=4 et: