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 * PERL_IMPLICIT_CONTEXT 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)
66 # ifndef PERL_IMPLICIT_CONTEXT
67 # define PERL_IMPLICIT_CONTEXT
71 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
77 /* Use the reentrant APIs like localtime_r and getpwent_r */
78 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
79 * XXX KEEP makedef.pl copy of this code in sync */
80 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
81 # define USE_REENTRANT_API
84 /* <--- here ends the logic shared by perl.h and makedef.pl */
87 =for apidoc_section Compiler directives
88 =for apidoc AmnUu|void|EXTERN_C
89 When not compiling using C++, expands to nothing.
90 Otherwise is used in a declaration of a function to indicate the function
91 should have external C linkage. This is required for things to work for just
92 about all functions with external linkage compiled into perl.
93 Often, you can use C<L</START_EXTERN_C>> ... C<L</END_EXTERN_C>> blocks
94 surrounding all your code that you need to have this linkage.
98 EXTERN_C int flock(int fd, int op);
100 =for apidoc Amnu||START_EXTERN_C
101 When not compiling using C++, expands to nothing.
102 Otherwise begins a section of code in which every function will effectively
103 have C<L</EXTERN_C>> applied to it, that is to have external C linkage. The
104 section is ended by a C<L</END_EXTERN_C>>.
106 =for apidoc Amnu||END_EXTERN_C
107 When not compiling using C++, expands to nothing.
108 Otherwise ends a section of code already begun by a C<L</START_EXTERN_C>>.
113 #undef START_EXTERN_C
117 # define START_EXTERN_C extern "C" {
118 # define END_EXTERN_C }
119 # define EXTERN_C extern "C"
121 # define START_EXTERN_C
122 # define END_EXTERN_C
123 # define EXTERN_C extern
126 /* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
130 #if !defined(PERL_STATIC_INLINE)
131 # ifdef HAS_STATIC_INLINE
132 # define PERL_STATIC_INLINE static inline
134 # define PERL_STATIC_INLINE static
138 /* this used to be off by default, now its on, see perlio.h */
139 #define PERLIO_FUNCS_CONST
141 #ifdef PERL_IMPLICIT_CONTEXT
142 # ifndef MULTIPLICITY
143 # define MULTIPLICITY
145 # define tTHX PerlInterpreter*
146 # define pTHX tTHX my_perl PERL_UNUSED_DECL
147 # define aTHX my_perl
148 # define aTHXa(a) aTHX = (tTHX)a
149 # define dTHXa(a) pTHX = (tTHX)a
150 # define dTHX pTHX = PERL_GET_THX
163 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
164 # define PERL_TRACK_MEMPOOL
167 # undef PERL_TRACK_MEMPOOL
171 # define dTHX_DEBUGGING dTHX
173 # define dTHX_DEBUGGING dNOOP
176 #define STATIC static
179 /* Do not use these macros. They were part of PERL_OBJECT, which was an
180 * implementation of multiplicity using C++ objects. They have been left
181 * here solely for the sake of XS code which has incorrectly
184 * The only one Devel::PPPort handles is this; list it as deprecated
186 =for apidoc_section Concurrency
187 =for apidoc AmD|void|CPERLscope|void x
192 #define CPERLscope(x) x
193 #define CPERLarg void
196 #define PERL_OBJECT_THIS
197 #define _PERL_OBJECT_THIS
198 #define PERL_OBJECT_THIS_
199 #define CALL_FPTR(fptr) (*fptr)
200 #define MEMBER_TO_FPTR(name) name
201 #endif /* !PERL_CORE */
203 #define CALLRUNOPS PL_runops
205 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
207 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
208 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
209 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
210 (strbeg),(minend),(sv),(data),(flags))
211 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
212 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
213 (strend),(flags),(data))
214 #define CALLREG_INTUIT_STRING(prog) \
215 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
217 #define CALLREGFREE(prog) \
218 Perl_pregfree(aTHX_ (prog))
220 #define CALLREGFREE_PVT(prog) \
221 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
223 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
224 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
226 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
227 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
229 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
230 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
232 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
233 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
235 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
236 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
238 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
239 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
241 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
242 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
244 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
245 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
247 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
248 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
250 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
251 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
253 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
256 #define CALLREG_NAMED_BUFF_COUNT(rx) \
257 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
259 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
260 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
262 #define CALLREG_PACKAGE(rx) \
263 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
265 #if defined(USE_ITHREADS)
266 #define CALLREGDUPE(prog,param) \
267 Perl_re_dup(aTHX_ (prog),(param))
269 #define CALLREGDUPE_PVT(prog,param) \
270 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
274 /* some compilers impersonate gcc */
275 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
276 # define PERL_IS_GCC 1
279 /* In case Configure was not used (we are using a "canned config"
280 * such as Win32, or a cross-compilation setup, for example) try going
281 * by the gcc major and minor versions. One useful URL is
282 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
283 * but contrary to this information warn_unused_result seems
284 * not to be in gcc 3.3.5, at least. --jhi
285 * Also, when building extensions with an installed perl, this allows
286 * the user to upgrade gcc and get the right attributes, rather than
287 * relying on the list generated at Configure time. --AD
288 * Set these up now otherwise we get confused when some of the <*thread.h>
289 * includes below indirectly pull in <perlio.h> (which needs to know if we
290 * have HASATTRIBUTE_FORMAT).
294 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
295 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
296 # define HASATTRIBUTE_DEPRECATED
298 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
299 # define HASATTRIBUTE_FORMAT
300 # if defined __MINGW32__
301 # define PRINTF_FORMAT_NULL_OK
304 # if __GNUC__ >= 3 /* 3.0 -> */
305 # define HASATTRIBUTE_MALLOC
307 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
308 # define HASATTRIBUTE_NONNULL
310 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
311 # define HASATTRIBUTE_NORETURN
313 # if __GNUC__ >= 3 /* gcc 3.0 -> */
314 # define HASATTRIBUTE_PURE
316 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
317 # define HASATTRIBUTE_UNUSED
319 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
320 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
322 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
323 # define HASATTRIBUTE_WARN_UNUSED_RESULT
325 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
326 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
327 # define HASATTRIBUTE_ALWAYS_INLINE
330 #endif /* #ifndef PERL_MICRO */
332 #ifdef HASATTRIBUTE_DEPRECATED
333 # define __attribute__deprecated__ __attribute__((deprecated))
335 #ifdef HASATTRIBUTE_FORMAT
336 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
338 #ifdef HASATTRIBUTE_MALLOC
339 # define __attribute__malloc__ __attribute__((__malloc__))
341 #ifdef HASATTRIBUTE_NONNULL
342 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
344 #ifdef HASATTRIBUTE_NORETURN
345 # define __attribute__noreturn__ __attribute__((noreturn))
347 #ifdef HASATTRIBUTE_PURE
348 # define __attribute__pure__ __attribute__((pure))
350 #ifdef HASATTRIBUTE_UNUSED
351 # define __attribute__unused__ __attribute__((unused))
353 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
354 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
356 #ifdef HASATTRIBUTE_ALWAYS_INLINE
357 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
358 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
359 # define __attribute__always_inline__ __attribute__((always_inline))
363 /* If we haven't defined the attributes yet, define them to blank. */
364 #ifndef __attribute__deprecated__
365 # define __attribute__deprecated__
367 #ifndef __attribute__format__
368 # define __attribute__format__(x,y,z)
370 #ifndef __attribute__malloc__
371 # define __attribute__malloc__
373 #ifndef __attribute__nonnull__
374 # define __attribute__nonnull__(a)
376 #ifndef __attribute__noreturn__
377 # define __attribute__noreturn__
379 #ifndef __attribute__pure__
380 # define __attribute__pure__
382 #ifndef __attribute__unused__
383 # define __attribute__unused__
385 #ifndef __attribute__warn_unused_result__
386 # define __attribute__warn_unused_result__
388 #ifndef __attribute__always_inline__
389 # define __attribute__always_inline__
392 /* Some OS warn on NULL format to printf */
393 #ifdef PRINTF_FORMAT_NULL_OK
394 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
396 # define __attribute__format__null_ok__(x,y,z)
400 * Because of backward compatibility reasons the PERL_UNUSED_DECL
401 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
403 * Note that there are C compilers such as MetroWerks CodeWarrior
404 * which do not have an "inlined" way (like the gcc __attribute__) of
405 * marking unused variables (they need e.g. a #pragma) and therefore
406 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
407 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
409 =for apidoc_section Compiler directives
410 =for apidoc AmnU||PERL_UNUSED_DECL
411 Tells the compiler that the parameter in the function prototype just before it
412 is not necessarily expected to be used in the function. Not that many
413 compilers understand this, so this should only be used in cases where
414 C<L</PERL_UNUSED_ARG>> can't conveniently be used.
421 Perl_perly_sighandler(int sig, Siginfo_t *sip PERL_UNUSED_DECL,
422 void *uap PERL_UNUSED_DECL, bool safe)
429 #ifndef PERL_UNUSED_DECL
430 # define PERL_UNUSED_DECL __attribute__unused__
434 * for silencing unused variables that are actually used most of the time,
435 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
436 * or variables/arguments that are used only in certain configurations.
438 =for apidoc Ams||PERL_UNUSED_ARG|void x
439 This is used to suppress compiler warnings that a parameter to a function is
440 not used. This situation can arise, for example, when a parameter is needed
441 under some configuration conditions, but not others, so that C preprocessor
442 conditional compilation causes it be used just some times.
444 =for apidoc Amns||PERL_UNUSED_CONTEXT
445 This is used to suppress compiler warnings that the thread context parameter to
446 a function is not used. This situation can arise, for example, when a
447 C preprocessor conditional compilation causes it be used just some times.
449 =for apidoc Ams||PERL_UNUSED_VAR|void x
450 This is used to suppress compiler warnings that the variable I<x> is not used.
451 This situation can arise, for example, when a C preprocessor conditional
452 compilation causes it be used just some times.
456 #ifndef PERL_UNUSED_ARG
457 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
459 #ifndef PERL_UNUSED_VAR
460 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
463 #if defined(USE_ITHREADS)
464 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
466 # define PERL_UNUSED_CONTEXT
469 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
470 * g++ allows them but seems to have problems with them
471 * (insane errors ensue).
472 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
474 #if defined(PERL_GCC_PEDANTIC) || \
475 (defined(__GNUC__) && defined(__cplusplus) && \
476 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
477 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
478 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
484 =for apidoc Am||PERL_UNUSED_RESULT|void x
486 This macro indicates to discard the return value of the function call inside
489 PERL_UNUSED_RESULT(foo(a, b))
491 The main reason for this is that the combination of C<gcc -Wunused-result>
492 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
493 be silenced with casting to C<void>. This causes trouble when the system
494 header files use the attribute.
496 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
497 is there for a good reason: you might lose success/failure information,
498 or leak resources, or changes in resources.
500 But sometimes you just want to ignore the return value, I<e.g.>, on
501 codepaths soon ending up in abort, or in "best effort" attempts,
502 or in situations where there is no good way to handle failures.
504 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
505 another possibility is that you can capture the return value
506 and use C<L</PERL_UNUSED_VAR>> on that.
510 The __typeof__() is used instead of typeof() since typeof() is not
511 available under strict C89, and because of compilers masquerading
512 as gcc (clang and icc), we want exactly the gcc extension
513 __typeof__ and nothing else.
516 #ifndef PERL_UNUSED_RESULT
517 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
518 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
520 # define PERL_UNUSED_RESULT(v) ((void)(v))
524 #if defined(_MSC_VER)
525 /* XXX older MSVC versions have a smallish macro buffer */
526 #define PERL_SMALL_MACRO_BUFFER
529 /* on gcc (and clang), specify that a warning should be temporarily
532 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
534 * GCC_DIAG_RESTORE_DECL;
536 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
538 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
539 * clang only pretends to be GCC 4.2, but still supports push/pop.
541 * Note on usage: all macros must be used at a place where a declaration
542 * or statement can occur, i.e., not in the middle of an expression.
543 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
544 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
545 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
546 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
547 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
548 * and behave syntactically as statements (like NOOP).
552 #if defined(__clang__) || defined(__clang) || \
553 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
554 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
555 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
556 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
557 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
558 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
560 # define GCC_DIAG_IGNORE(w)
561 # define GCC_DIAG_RESTORE
563 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
564 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
565 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
566 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
567 /* for clang specific pragmas */
568 #if defined(__clang__) || defined(__clang)
569 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
570 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
571 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
572 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
574 # define CLANG_DIAG_IGNORE(w)
575 # define CLANG_DIAG_RESTORE
577 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
578 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
579 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
580 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
582 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
583 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
584 __pragma(warning(disable : x))
585 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
587 # define MSVC_DIAG_IGNORE(x)
588 # define MSVC_DIAG_RESTORE
590 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
591 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
592 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
593 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
595 #define NOOP /*EMPTY*/(void)0
596 #define dNOOP struct Perl___notused_struct
599 /* Don't bother defining tTHX ; using it outside
600 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
606 # define aTHXa(a) NOOP
607 # define dTHXa(a) dNOOP
622 /* Backwards compatibility macro for XS code. It used to be part of
623 * the PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
627 /* these are only defined for compatibility; should not be used internally */
628 #if !defined(pTHXo) && !defined(PERL_CORE)
630 # define pTHXo_ pTHX_
632 # define aTHXo_ aTHX_
634 # define dTHXoa(x) dTHXa(x)
638 # define pTHXx PerlInterpreter *my_perl
639 # define pTHXx_ pTHXx,
640 # define aTHXx my_perl
641 # define aTHXx_ aTHXx,
645 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
646 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
647 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
648 #ifdef PERL_IMPLICIT_SYS
654 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
655 # ifndef PERL_USE_GCC_BRACE_GROUPS
656 # define PERL_USE_GCC_BRACE_GROUPS
661 =for apidoc_section Compiler directives
662 =for apidoc AmnUu|void|STMT_START
663 =for apidoc_item ||STMT_END
665 This allows a series of statements in a macro to be used as a single statement,
668 if (x) STMT_START { ... } STMT_END else ...
670 Note that you can't return a value out of them, which limits their utility.
671 But see C<L</PERL_USE_GCC_BRACE_GROUPS>>.
673 =for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
675 This C pre-processor value, if defined, indicates that it is permissible to use
676 the GCC brace groups extension. This extension, of the form
680 turns the block consisting of I<statements ...> into an expression with a
681 value, unlike plain C language blocks. This can present optimization
682 possibilities, B<BUT> you generally need to specify an alternative in case this
683 ability doesn't exist or has otherwise been forbidden.
689 #ifdef PERL_USE_GCC_BRACE_GROUPS
699 Trying to select a version that gives no warnings...
701 #if !(defined(STMT_START) && defined(STMT_END))
702 # ifdef PERL_USE_GCC_BRACE_GROUPS
703 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
706 # define STMT_START do
707 # define STMT_END while (0)
711 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
712 # define BYTEORDER 0x1234
715 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
722 * The following contortions are brought to you on behalf of all the
723 * standards, semi-standards, de facto standards, not-so-de-facto standards
724 * of the world, as well as all the other botches anyone ever thought of.
725 * The basic theory is that if we work hard enough here, the rest of the
726 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
729 /* define this once if either system, instead of cluttering up the src */
730 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
734 /* These exist only for back-compat with XS modules. */
737 #define CAN_PROTOTYPE
744 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
745 * you get a perl without taint support, but doubtlessly with a lesser
746 * degree of support. Do not do so unless you know exactly what it means
747 * technically, have a good reason to do so, and know exactly how the
748 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
749 * a potential security risk due to flat out ignoring the security-relevant
750 * taint flags. This being said, a perl without taint support compiled in
751 * has marginal run-time performance benefits.
752 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
753 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
754 * silently ignores -t/-T instead of throwing an exception.
756 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
757 * voids your nonexistent warranty!
759 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
760 # define NO_TAINT_SUPPORT 1
763 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
764 * operations into no-ops for a very modest speed-up. Enable only if you
765 * know what you're doing: tests and CPAN modules' tests are bound to fail.
767 #ifdef NO_TAINT_SUPPORT
769 # define TAINT_NOT NOOP
770 # define TAINT_IF(c) NOOP
771 # define TAINT_ENV() NOOP
772 # define TAINT_PROPER(s) NOOP
773 # define TAINT_set(s) NOOP
775 # define TAINTING_get 0
776 # define TAINTING_set(s) NOOP
777 # define TAINT_WARN_get 0
778 # define TAINT_WARN_set(s) NOOP
780 /* Set to tainted if we are running under tainting mode */
781 # define TAINT (PL_tainted = PL_tainting)
783 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
784 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
785 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
786 /* croak or warn if tainting */
787 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
788 taint_proper(NULL, s); \
790 # define TAINT_set(s) (PL_tainted = (s))
791 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
792 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
793 # define TAINTING_set(s) (PL_tainting = (s))
794 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
798 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
801 /* flags used internally only within pp_subst and pp_substcont */
803 # define SUBST_TAINT_STR 1 /* string tainted */
804 # define SUBST_TAINT_PAT 2 /* pattern tainted */
805 # define SUBST_TAINT_REPL 4 /* replacement tainted */
806 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
807 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
810 /* XXX All process group stuff is handled in pp_sys.c. Should these
811 defines move there? If so, I could simplify this a lot. --AD 9/96.
813 /* Process group stuff changed from traditional BSD to POSIX.
814 perlfunc.pod documents the traditional BSD-style syntax, so we'll
815 try to preserve that, if possible.
818 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
819 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
820 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
821 #elif defined(HAS_SETPGRP2)
822 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
824 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
825 # define HAS_SETPGRP /* Well, effectively it does . . . */
828 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
829 our life easier :-) so we'll try it.
832 # define BSD_GETPGRP(pid) getpgid((pid))
833 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
834 # define BSD_GETPGRP(pid) getpgrp((pid))
835 #elif defined(HAS_GETPGRP2)
836 # define BSD_GETPGRP(pid) getpgrp2((pid))
838 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
839 # define HAS_GETPGRP /* Well, effectively it does . . . */
842 /* These are not exact synonyms, since setpgrp() and getpgrp() may
843 have different behaviors, but perl.h used to define USE_BSDPGRP
844 (prior to 5.003_05) so some extension might depend on it.
846 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
852 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
853 pthread.h must be included before all other header files.
855 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
856 # include <pthread.h>
859 #include <sys/types.h>
875 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
888 # include <xlocale.h>
891 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
892 * functions are available, or 2) just the setlocale() function. This logic is
893 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
895 #if ! defined(NO_LOCALE)
897 # if ! defined(NO_POSIX_2008_LOCALE) \
898 && defined(HAS_NEWLOCALE) \
899 && defined(HAS_USELOCALE) \
900 && defined(HAS_DUPLOCALE) \
901 && defined(HAS_FREELOCALE) \
902 && defined(LC_ALL_MASK)
904 /* For simplicity, the code is written to assume that any platform advanced
905 * enough to have the Posix 2008 locale functions has LC_ALL. The final
906 * test above makes sure that assumption is valid */
908 # define HAS_POSIX_2008_LOCALE
910 # elif defined(HAS_SETLOCALE)
916 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
918 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
919 && defined(HAS_STRXFRM)
920 # define USE_LOCALE_COLLATE
922 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
923 # define USE_LOCALE_CTYPE
925 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
926 # define USE_LOCALE_NUMERIC
928 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
929 # define USE_LOCALE_MESSAGES
931 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
932 # define USE_LOCALE_MONETARY
934 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
935 # define USE_LOCALE_TIME
937 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
938 # define USE_LOCALE_ADDRESS
940 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
941 # define USE_LOCALE_IDENTIFICATION
943 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
944 # define USE_LOCALE_MEASUREMENT
946 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
947 # define USE_LOCALE_PAPER
949 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
950 # define USE_LOCALE_TELEPHONE
952 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
953 # define USE_LOCALE_SYNTAX
955 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
956 # define USE_LOCALE_TOD
959 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
960 * changes here MUST also be made there */
962 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
963 # define USE_POSIX_2008_LOCALE
964 # ifndef USE_THREAD_SAFE_LOCALE
965 # define USE_THREAD_SAFE_LOCALE
968 * -DUSE_THREAD_SAFE_LOCALE, will do so even
969 * on unthreaded builds */
970 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
971 && ( defined(HAS_POSIX_2008_LOCALE) \
972 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
973 && ! defined(NO_THREAD_SAFE_LOCALE)
974 # ifndef USE_THREAD_SAFE_LOCALE
975 # define USE_THREAD_SAFE_LOCALE
977 # ifdef HAS_POSIX_2008_LOCALE
978 # define USE_POSIX_2008_LOCALE
983 /* Microsoft documentation reads in the change log for VS 2015:
984 * "The localeconv function declared in locale.h now works correctly when
985 * per-thread locale is enabled. In previous versions of the library, this
986 * function would return the lconv data for the global locale, not the
989 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
990 # define TS_W32_BROKEN_LOCALECONV
996 # ifdef PARAM_NEEDS_TYPES
997 # include <sys/types.h>
999 # include <sys/param.h>
1002 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
1003 value something like 199306. This may be useful if no more-specific
1004 feature test is available.
1012 /* Use all the "standard" definitions */
1015 /* If this causes problems, set i_unistd=undef in the hint file. */
1017 # if defined(__amigaos4__)
1018 # ifdef I_NETINET_IN
1019 # include <netinet/in.h>
1022 # include <unistd.h>
1023 # if defined(__amigaos4__)
1024 /* Under AmigaOS 4 newlib.library provides an environ. However using
1025 * it doesn't give us enough control over inheritance of variables by
1026 * subshells etc. so replace with custom version based on abc-shell
1028 extern char **myenviron;
1030 # define environ myenviron
1036 # include <sys/wait.h>
1039 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1040 EXTERN_C int syscall(int, ...);
1043 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1044 EXTERN_C int usleep(unsigned int);
1047 /* Macros for correct constant construction. These are in C99 <stdint.h>
1048 * (so they will not be available in strict C89 mode), but they are nice, so
1049 * let's define them if necessary.
1050 =for apidoc_section Integer configuration values
1051 =for apidoc Am|I16|INT16_C|number
1052 =for apidoc_item |I32|INT32_C|number
1053 =for apidoc_item |I64|INT64_C|number
1055 Returns a token the C compiler recognizes for the constant C<number> of the
1056 corresponding integer type on the machine.
1058 If the machine does not have a 64-bit type, C<INT64_C> is undefined.
1060 =for apidoc Am|U16|UINT16_C|number
1061 =for apidoc_item |U32|UINT32_C|number
1062 =for apidoc_item |U64|UINT64_C|number
1064 Returns a token the C compiler recognizes for the constant C<number> of the
1065 corresponding unsigned integer type on the machine.
1067 If the machine does not have a 64-bit type, C<UINT64_C> is undefined.
1074 # define UINT16_C(x) ((U16_TYPE)x##U)
1076 # define UINT16_C(x) ((U16_TYPE)x##UL)
1082 # define UINT32_C(x) ((U32_TYPE)x##U)
1084 # define UINT32_C(x) ((U32_TYPE)x##UL)
1089 typedef intmax_t PERL_INTMAX_T;
1090 typedef uintmax_t PERL_UINTMAX_T;
1093 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1094 * actually mean what it has always been documented to mean (see RT #119753)
1095 * and is explicitly turned off outside of core with dire warnings about
1096 * removing the undef. */
1098 #if defined(QUADKIND)
1099 # undef PeRl_INT64_C
1100 # undef PeRl_UINT64_C
1101 /* Prefer the native integer types (int and long) over long long
1102 * (which is not C89) and Win32-specific __int64. */
1103 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1104 # define PeRl_INT64_C(c) (c)
1105 # define PeRl_UINT64_C(c) CAT2(c,U)
1107 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1108 # define PeRl_INT64_C(c) CAT2(c,L)
1109 # define PeRl_UINT64_C(c) CAT2(c,UL)
1111 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1112 # define PeRl_INT64_C(c) CAT2(c,LL)
1113 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1115 # if QUADKIND == QUAD_IS___INT64
1116 # define PeRl_INT64_C(c) CAT2(c,I64)
1117 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1119 # ifndef PeRl_INT64_C
1120 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1121 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1123 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1124 * not fly with C89-pedantic gcc, so let's undefine them first so that
1125 * we can redefine them with our native integer preferring versions. */
1126 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1131 # define INT64_C(c) PeRl_INT64_C(c)
1134 # define UINT64_C(c) PeRl_UINT64_C(c)
1138 =for apidoc_section Integer configuration values
1139 =for apidoc Am||INTMAX_C|number
1140 Returns a token the C compiler recognizes for the constant C<number> of the
1141 widest integer type on the machine. For example, if the machine has C<long
1142 long>s, C<INTMAX_C(-1)> would yield
1146 =for apidoc Am||UINTMAX_C|number
1147 Returns a token the C compiler recognizes for the constant C<number> of the
1148 widest unsigned integer type on the machine. For example, if the machine has
1149 C<long>s, C<UINTMAX_C(1)> would yield
1157 typedef I64TYPE PERL_INTMAX_T;
1158 typedef U64TYPE PERL_UINTMAX_T;
1161 # define INTMAX_C(c) INT64_C(c)
1164 # define UINTMAX_C(c) UINT64_C(c)
1167 #else /* below QUADKIND is undefined */
1169 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1171 typedef I32TYPE PERL_INTMAX_T;
1172 typedef U32TYPE PERL_UINTMAX_T;
1175 # define INTMAX_C(c) INT32_C(c)
1178 # define UINTMAX_C(c) UINT32_C(c)
1181 #endif /* no QUADKIND */
1185 /* byte-swapping functions for big-/little-endian conversion */
1186 # define _swab_16_(x) ((U16)( \
1187 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1188 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1190 # define _swab_32_(x) ((U32)( \
1191 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1192 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1193 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1194 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1197 # define _swab_64_(x) ((U64)( \
1198 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1199 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1200 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1201 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1202 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1203 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1204 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1205 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1208 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1209 at least on FreeBSD. YMMV, so experiment. */
1210 #ifndef PERL_ARENA_SIZE
1211 #define PERL_ARENA_SIZE 4080
1214 /* Maximum level of recursion */
1215 #ifndef PERL_SUB_DEPTH_WARN
1216 #define PERL_SUB_DEPTH_WARN 100
1219 #endif /* PERL_CORE */
1221 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1222 * It determines the size of local arrays in S_maybe_multiconcat() and
1225 #define PERL_MULTICONCAT_MAXARG 64
1227 /* The indexes of fields of a multiconcat aux struct.
1228 * The fixed fields are followed by nargs+1 const segment lengths,
1229 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1232 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1233 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1234 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1235 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1236 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1237 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1238 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1239 multiconcat header */
1241 /* We no longer default to creating a new SV for GvSV.
1242 Do this before embed. */
1243 #ifndef PERL_CREATE_GVSV
1244 # ifndef PERL_DONT_CREATE_GVSV
1245 # define PERL_DONT_CREATE_GVSV
1249 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1250 #define PERL_USES_PL_PIDSTATUS
1253 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1254 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1257 #define MEM_SIZE Size_t
1259 /* Round all values passed to malloc up, by default to a multiple of
1262 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1263 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1266 /* sv_grow() will expand strings by at least a certain percentage of
1267 the previously *used* length to avoid excessive calls to realloc().
1268 The default is 25% of the current length.
1270 #ifndef PERL_STRLEN_EXPAND_SHIFT
1271 # define PERL_STRLEN_EXPAND_SHIFT 2
1274 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1275 * onwards) when building Socket.xs, but we can just use a different definition
1276 * for STRUCT_OFFSET instead. */
1277 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1278 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1280 # include <stddef.h>
1281 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1284 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1285 * in C89, but apparently there are platforms where it doesn't exist. See
1286 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1288 #ifdef PERL_GCC_PEDANTIC
1289 # undef HAS_PTRDIFF_T
1292 #ifdef HAS_PTRDIFF_T
1293 # define Ptrdiff_t ptrdiff_t
1295 # define Ptrdiff_t SSize_t
1298 # include <string.h>
1300 /* This comes after <stdlib.h> so we don't try to change the standard
1301 * library prototypes; we'll use our own in proto.h instead. */
1304 # ifdef PERL_POLLUTE_MALLOC
1305 # ifndef PERL_EXTMALLOC_DEF
1306 # define Perl_malloc malloc
1307 # define Perl_calloc calloc
1308 # define Perl_realloc realloc
1309 # define Perl_mfree free
1312 # define EMBEDMYMALLOC /* for compatibility */
1315 # define safemalloc Perl_malloc
1316 # define safecalloc Perl_calloc
1317 # define saferealloc Perl_realloc
1318 # define safefree Perl_mfree
1319 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1320 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1323 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1324 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1325 # define panic_write2(s) write(2, s, strlen(s))
1326 # define CHECK_MALLOC_TAINT(newval) \
1327 CHECK_MALLOC_TOO_LATE_FOR_( \
1329 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1331 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1332 if (doing_taint(argc,argv,env)) { \
1333 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1335 #else /* MYMALLOC */
1336 # define safemalloc safesysmalloc
1337 # define safecalloc safesyscalloc
1338 # define saferealloc safesysrealloc
1339 # define safefree safesysfree
1340 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1341 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1342 # define MALLOC_CHECK_TAINT(argc,argv,env)
1343 #endif /* MYMALLOC */
1345 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1346 #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)
1347 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1348 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1349 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1352 # define memzero(d,l) memset(d,0,l)
1356 # include <netinet/in.h>
1360 # include <arpa/inet.h>
1364 # include <sys/stat.h>
1367 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1368 This definition should ideally go into win32/win32.h, but S_IFIFO is
1369 used later here in perl.h before win32/win32.h is being included. */
1370 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1371 # define S_IFIFO _S_IFIFO
1374 /* The stat macros for Unisoft System V/88 (and derivatives
1375 like UTekV) are broken, sometimes giving false positives. Undefine
1376 them here and let the code below set them to proper values.
1378 The ghs macro stands for GreenHills Software C-1.8.5 which
1379 is the C compiler for sysV88 and the various derivatives.
1380 This header file bug is corrected in gcc-2.5.8 and later versions.
1381 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1383 #if defined(m88k) && defined(ghs)
1395 # ifdef I_SYS_TIME_KERNEL
1398 # include <sys/time.h>
1399 # ifdef I_SYS_TIME_KERNEL
1404 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1405 # include <sys/times.h>
1410 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1411 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1414 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1415 # include <sys/socket.h>
1416 # if defined(USE_SOCKS) && defined(I_SOCKS)
1417 # if !defined(INCLUDE_PROTOTYPES)
1418 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1419 # define PERL_SOCKS_NEED_PROTOTYPES
1422 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1423 # undef INCLUDE_PROTOTYPES
1424 # undef PERL_SOCKS_NEED_PROTOTYPES
1435 # include <net/errno.h>
1440 /* sockatmark() is so new (2001) that many places might have it hidden
1441 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1442 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1443 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1444 # if defined(__THROW) && defined(__GLIBC__)
1445 int sockatmark(int) __THROW;
1447 int sockatmark(int);
1451 #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. */
1452 EXTERN_C int fchdir(int);
1453 EXTERN_C int flock(int, int);
1454 EXTERN_C int fseeko(FILE *, off_t, int);
1455 EXTERN_C off_t ftello(FILE *);
1458 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1459 EXTERN_C char *crypt(const char *, const char *);
1462 #if defined(__cplusplus) && defined(__CYGWIN__)
1463 EXTERN_C char *crypt(const char *, const char *);
1467 =for apidoc_section Errno
1469 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1471 Set C<errno>, and on VMS set C<vaxc$errno>.
1473 =for apidoc mn|void|dSAVEDERRNO
1475 Declare variables needed to save C<errno> and any operating system
1476 specific error number.
1478 =for apidoc mn|void|dSAVE_ERRNO
1480 Declare variables needed to save C<errno> and any operating system
1481 specific error number, and save them for optional later restoration
1482 by C<RESTORE_ERRNO>.
1484 =for apidoc mn|void|SAVE_ERRNO
1486 Save C<errno> and any operating system specific error number for
1487 optional later restoration by C<RESTORE_ERRNO>. Requires
1488 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1490 =for apidoc mn|void|RESTORE_ERRNO
1492 Restore C<errno> and any operating system specific error number that
1493 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1499 # undef SETERRNO /* SOCKS might have defined this */
1503 # define SETERRNO(errcode,vmserrcode) \
1505 set_errno(errcode); \
1506 set_vaxc_errno(vmserrcode); \
1508 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1509 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1510 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1511 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1513 # define LIB_INVARG LIB$_INVARG
1514 # define RMS_DIR RMS$_DIR
1515 # define RMS_FAC RMS$_FAC
1516 # define RMS_FEX RMS$_FEX
1517 # define RMS_FNF RMS$_FNF
1518 # define RMS_IFI RMS$_IFI
1519 # define RMS_ISI RMS$_ISI
1520 # define RMS_PRV RMS$_PRV
1521 # define SS_ACCVIO SS$_ACCVIO
1522 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1523 # define SS_IVCHAN SS$_IVCHAN
1524 # define SS_NORMAL SS$_NORMAL
1525 # define SS_NOPRIV SS$_NOPRIV
1526 # define SS_BUFFEROVF SS$_BUFFEROVF
1528 # define LIB_INVARG 0
1536 # define SS_ACCVIO 0
1537 # define SS_DEVOFFLINE 0
1538 # define SS_IVCHAN 0
1539 # define SS_NORMAL 0
1540 # define SS_NOPRIV 0
1541 # define SS_BUFFEROVF 0
1545 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1546 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1547 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1548 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1552 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1553 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1554 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1555 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1559 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1563 # define dSAVEDERRNO int saved_errno
1564 # define dSAVE_ERRNO int saved_errno = errno
1565 # define SAVE_ERRNO (saved_errno = errno)
1566 # define RESTORE_ERRNO (errno = saved_errno)
1570 =for apidoc_section Warning and Dieing
1572 =for apidoc Amn|SV *|ERRSV
1574 Returns the SV for C<$@>, creating it if needed.
1576 =for apidoc Am|void|CLEAR_ERRSV
1578 Clear the contents of C<$@>, setting it to the empty string.
1580 This replaces any read-only SV with a fresh SV and removes any magic.
1582 =for apidoc Am|void|SANE_ERRSV
1584 Clean up ERRSV so we can safely set it.
1586 This replaces any read-only SV with a fresh writable copy and removes
1592 #define ERRSV GvSVn(PL_errgv)
1594 /* contains inlined gv_add_by_type */
1595 #define CLEAR_ERRSV() STMT_START { \
1596 SV ** const svp = &GvSV(PL_errgv); \
1598 *svp = newSVpvs(""); \
1599 } else if (SvREADONLY(*svp)) { \
1600 SvREFCNT_dec_NN(*svp); \
1601 *svp = newSVpvs(""); \
1603 SV *const errsv = *svp; \
1605 SvPOK_only(errsv); \
1606 if (SvMAGICAL(errsv)) { \
1612 /* contains inlined gv_add_by_type */
1613 #define SANE_ERRSV() STMT_START { \
1614 SV ** const svp = &GvSV(PL_errgv); \
1616 *svp = newSVpvs(""); \
1617 } else if (SvREADONLY(*svp)) { \
1618 SV *dupsv = newSVsv(*svp); \
1619 SvREFCNT_dec_NN(*svp); \
1622 SV *const errsv = *svp; \
1623 if (SvMAGICAL(errsv)) { \
1631 # define DEFSV (0 + GvSVn(PL_defgv))
1632 # define DEFSV_set(sv) \
1633 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1634 # define SAVE_DEFSV \
1636 save_gp(PL_defgv, 0), \
1637 GvINTRO_off(PL_defgv), \
1638 SAVEGENERICSV(GvSV(PL_defgv)), \
1639 GvSV(PL_defgv) = NULL \
1642 # define DEFSV GvSVn(PL_defgv)
1643 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1644 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1648 =for apidoc_section SV Handling
1649 =for apidoc Amn|SV *|DEFSV
1650 Returns the SV associated with C<$_>
1652 =for apidoc Am|void|DEFSV_set|SV * sv
1653 Associate C<sv> with C<$_>
1655 =for apidoc Amn|void|SAVE_DEFSV
1656 Localize C<$_>. See L<perlguts/Localizing changes>.
1662 extern int errno; /* ANSI allows errno to be an lvalue expr.
1663 * For example in multithreaded environments
1664 * something like this might happen:
1665 * extern int *_errno(void);
1666 * #define errno (*_errno()) */
1669 #define UNKNOWN_ERRNO_MSG "(unknown)"
1672 #define Strerror(e) strerror((e), vaxc$errno)
1674 #define Strerror(e) strerror(e)
1679 # include <sys/ioctl.h>
1683 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1684 # ifdef HAS_SOCKETPAIR
1685 # undef HAS_SOCKETPAIR
1692 #ifndef HAS_SOCKETPAIR
1694 # define socketpair Perl_my_socketpair
1699 # define htoni htons
1700 # define ntohi ntohs
1702 # define htoni htonl
1703 # define ntohi ntohl
1706 /* Configure already sets Direntry_t */
1707 #if defined(I_DIRENT)
1708 # include <dirent.h>
1709 #elif defined(I_SYS_NDIR)
1710 # include <sys/ndir.h>
1711 #elif defined(I_SYS_DIR)
1712 # include <sys/dir.h>
1716 * The following gobbledygook brought to you on behalf of __STDC__.
1717 * (I could just use #ifndef __STDC__, but this is more bulletproof
1718 * in the face of half-implementations.)
1721 #if defined(I_SYSMODE)
1722 #include <sys/mode.h>
1727 # define S_IFMT _S_IFMT
1729 # define S_IFMT 0170000
1734 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1738 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1743 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1745 # define S_ISBLK(m) (0)
1750 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1755 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1757 # define S_ISFIFO(m) (0)
1763 # define S_ISLNK(m) _S_ISLNK(m)
1764 # elif defined(_S_IFLNK)
1765 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1766 # elif defined(S_IFLNK)
1767 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1769 # define S_ISLNK(m) (0)
1775 # define S_ISSOCK(m) _S_ISSOCK(m)
1776 # elif defined(_S_IFSOCK)
1777 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1778 # elif defined(S_IFSOCK)
1779 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1781 # define S_ISSOCK(m) (0)
1787 # define S_IRUSR S_IREAD
1788 # define S_IWUSR S_IWRITE
1789 # define S_IXUSR S_IEXEC
1791 # define S_IRUSR 0400
1792 # define S_IWUSR 0200
1793 # define S_IXUSR 0100
1799 # define S_IRGRP (S_IRUSR>>3)
1800 # define S_IWGRP (S_IWUSR>>3)
1801 # define S_IXGRP (S_IXUSR>>3)
1803 # define S_IRGRP 0040
1804 # define S_IWGRP 0020
1805 # define S_IXGRP 0010
1811 # define S_IROTH (S_IRUSR>>6)
1812 # define S_IWOTH (S_IWUSR>>6)
1813 # define S_IXOTH (S_IXUSR>>6)
1815 # define S_IROTH 0040
1816 # define S_IWOTH 0020
1817 # define S_IXOTH 0010
1822 # define S_ISUID 04000
1826 # define S_ISGID 02000
1830 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1834 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1838 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1841 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1842 * which would get included through <sys/file.h >, but that is 3000
1843 * lines in the future. --jhi */
1845 #if !defined(S_IREAD) && !defined(__HAIKU__)
1846 # define S_IREAD S_IRUSR
1849 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1850 # define S_IWRITE S_IWUSR
1854 # define S_IEXEC S_IXUSR
1857 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1858 # define SLOPPYDIVIDE
1865 /* This used to be conditionally defined based on whether we had a sprintf()
1866 * that correctly returns the string length (as required by C89), but we no
1867 * longer need that. XS modules can (and do) use this name, so it must remain
1868 * a part of the API that's visible to modules.
1870 =for apidoc_section String Handling
1871 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1873 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1878 #define my_sprintf sprintf
1881 * If we have v?snprintf() and the C99 variadic macros, we can just
1882 * use just the v?snprintf(). It is nice to try to trap the buffer
1883 * overflow, however, so if we are DEBUGGING, and we cannot use the
1884 * gcc statement expressions, then use the function wrappers which try
1885 * to trap the overflow. If we can use the gcc statement expressions,
1886 * we can try that even with the version that uses the C99 variadic
1890 /* Note that we do not check against snprintf()/vsnprintf() returning
1891 * negative values because that is non-standard behaviour and we use
1892 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1893 * that should be true only if the snprintf()/vsnprintf() are true
1894 * to the standard. */
1896 #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
1899 # define my_snprintf Perl_my_snprintf
1900 # define PERL_MY_SNPRINTF_GUARDED
1901 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1902 # ifdef PERL_USE_GCC_BRACE_GROUPS
1903 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1904 # define PERL_MY_SNPRINTF_GUARDED
1906 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1909 # define my_snprintf Perl_my_snprintf
1910 # define PERL_MY_SNPRINTF_GUARDED
1913 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1914 * dies if called under USE_QUADMATH. */
1915 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1916 # ifdef PERL_USE_GCC_BRACE_GROUPS
1917 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1918 # define PERL_MY_VSNPRINTF_GUARDED
1920 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1923 # define my_vsnprintf Perl_my_vsnprintf
1924 # define PERL_MY_VSNPRINTF_GUARDED
1927 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1928 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1929 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1930 * completely ignore it: otherwise you cannot know whether your output
1933 * int len = my_sprintf(buf, max, ...);
1934 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1936 * The trick is that in certain platforms [a] the my_sprintf() already
1937 * contains the sanity check, while in certain platforms [b] it needs
1938 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1939 * platforms the POST_GUARD actually does nothing since the check has
1940 * already been done. Watch out for the max being the same in both calls.
1942 * If you actually use the snprintf/vsnprintf return value already,
1943 * you assumedly are checking its validity somehow. But you can
1944 * insert the POST_GUARD() also in that case. */
1946 #ifndef PERL_MY_SNPRINTF_GUARDED
1947 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1949 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1952 #ifndef PERL_MY_VSNPRINTF_GUARDED
1953 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1955 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1959 # define my_strlcat strlcat
1962 #if defined(PERL_CORE) || defined(PERL_EXT)
1964 # define my_memrchr memrchr
1966 # define my_memrchr S_my_memrchr
1971 # define my_strlcpy strlcpy
1975 # define my_strnlen strnlen
1979 The IV type is supposed to be long enough to hold any integral
1981 --Andy Dougherty August 1996
1987 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1988 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1989 # define IV_MAX ((IV)INT64_MAX)
1990 # define IV_MIN ((IV)INT64_MIN)
1991 # define UV_MAX ((UV)UINT64_MAX)
1993 # define UINT64_MIN 0
1995 # define UV_MIN ((UV)UINT64_MIN)
1997 # define IV_MAX PERL_QUAD_MAX
1998 # define IV_MIN PERL_QUAD_MIN
1999 # define UV_MAX PERL_UQUAD_MAX
2000 # define UV_MIN PERL_UQUAD_MIN
2005 # if defined(INT32_MAX) && IVSIZE == 4
2006 # define IV_MAX ((IV)INT32_MAX)
2007 # define IV_MIN ((IV)INT32_MIN)
2008 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
2009 # define UV_MAX ((UV)UINT32_MAX)
2011 # define UV_MAX ((UV)4294967295U)
2014 # define UINT32_MIN 0
2016 # define UV_MIN ((UV)UINT32_MIN)
2018 # define IV_MAX PERL_LONG_MAX
2019 # define IV_MIN PERL_LONG_MIN
2020 # define UV_MAX PERL_ULONG_MAX
2021 # define UV_MIN PERL_ULONG_MIN
2032 #if !defined(PERL_CORE)
2033 /* We think that removing this decade-old undef this will cause too much
2034 breakage on CPAN for too little gain. (See RT #119753)
2035 However, we do need HAS_QUAD in the core for use by the drand48 code. */
2041 #define Size_t_MAX (~(Size_t)0)
2042 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
2044 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
2045 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
2047 #ifndef NO_PERL_PRESERVE_IVUV
2048 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
2052 * The macros INT2PTR and NUM2PTR are (despite their names)
2053 * bi-directional: they will convert int/float to or from pointers.
2054 * However the conversion to int/float are named explicitly:
2055 * PTR2IV, PTR2UV, PTR2NV.
2057 * For int conversions we do not need two casts if pointers are
2058 * the same size as IV and UV. Otherwise we need an explicit
2059 * cast (PTRV) to avoid compiler warnings.
2061 * These are mentioned in perlguts
2063 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2065 # define INT2PTR(any,d) (any)(d)
2066 #elif PTRSIZE == LONGSIZE
2067 # define PTRV unsigned long
2068 # define PTR2ul(p) (unsigned long)(p)
2070 # define PTRV unsigned
2074 # define INT2PTR(any,d) (any)(PTRV)(d)
2078 # define PTR2ul(p) INT2PTR(unsigned long,p)
2081 #define NUM2PTR(any,d) (any)(PTRV)(d)
2082 #define PTR2IV(p) INT2PTR(IV,p)
2083 #define PTR2UV(p) INT2PTR(UV,p)
2084 #define PTR2NV(p) NUM2PTR(NV,p)
2085 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2087 /* According to strict ANSI C89 one cannot freely cast between
2088 * data pointers and function (code) pointers. There are at least
2089 * two ways around this. One (used below) is to do two casts,
2090 * first the other pointer to an (unsigned) integer, and then
2091 * the integer to the other pointer. The other way would be
2092 * to use unions to "overlay" the pointers. For an example of
2093 * the latter technique, see union dirpu in struct xpvio in sv.h.
2094 * The only feasible use is probably temporarily storing
2095 * function pointers in a data pointer (such as a void pointer). */
2097 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2098 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2100 #ifdef USE_LONG_DOUBLE
2101 # if LONG_DOUBLESIZE == DOUBLESIZE
2102 # define LONG_DOUBLE_EQUALS_DOUBLE
2103 # undef USE_LONG_DOUBLE /* Ouch! */
2107 /* The following is all to get LDBL_DIG, in order to pick a nice
2108 default value for printing floating point numbers in Gconvert.
2111 #ifndef HAS_LDBL_DIG
2112 # if LONG_DOUBLESIZE == 10
2113 # define LDBL_DIG 18 /* assume IEEE */
2114 # elif LONG_DOUBLESIZE == 12
2115 # define LDBL_DIG 18 /* gcc? */
2116 # elif LONG_DOUBLESIZE == 16
2117 # define LDBL_DIG 33 /* assume IEEE */
2118 # elif LONG_DOUBLESIZE == DOUBLESIZE
2119 # define LDBL_DIG DBL_DIG /* bummer */
2126 # include <ieeefp.h>
2129 #if defined(__DECC) && defined(__osf__)
2130 /* Also Tru64 cc has broken NaN comparisons. */
2131 # define NAN_COMPARE_BROKEN
2134 # define NAN_COMPARE_BROKEN
2137 #ifdef USE_LONG_DOUBLE
2139 # include <sunmath.h>
2141 # if defined(LDBL_DIG)
2142 # define NV_DIG LDBL_DIG
2143 # ifdef LDBL_MANT_DIG
2144 # define NV_MANT_DIG LDBL_MANT_DIG
2147 # define NV_MIN LDBL_MIN
2150 # define NV_MAX LDBL_MAX
2152 # ifdef LDBL_MIN_EXP
2153 # define NV_MIN_EXP LDBL_MIN_EXP
2155 # ifdef LDBL_MAX_EXP
2156 # define NV_MAX_EXP LDBL_MAX_EXP
2158 # ifdef LDBL_MIN_10_EXP
2159 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2161 # ifdef LDBL_MAX_10_EXP
2162 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2164 # ifdef LDBL_EPSILON
2165 # define NV_EPSILON LDBL_EPSILON
2168 # define NV_MAX LDBL_MAX
2169 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2170 # elif defined(HUGE_VALL)
2171 # define NV_MAX HUGE_VALL
2174 # if defined(HAS_SQRTL)
2175 # define Perl_acos acosl
2176 # define Perl_asin asinl
2177 # define Perl_atan atanl
2178 # define Perl_atan2 atan2l
2179 # define Perl_ceil ceill
2180 # define Perl_cos cosl
2181 # define Perl_cosh coshl
2182 # define Perl_exp expl
2183 /* no Perl_fabs, but there's PERL_ABS */
2184 # define Perl_floor floorl
2185 # define Perl_fmod fmodl
2186 # define Perl_log logl
2187 # define Perl_log10 log10l
2188 # define Perl_pow powl
2189 # define Perl_sin sinl
2190 # define Perl_sinh sinhl
2191 # define Perl_sqrt sqrtl
2192 # define Perl_tan tanl
2193 # define Perl_tanh tanhl
2195 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2198 # define Perl_modf(x,y) modfl(x,y)
2199 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2200 prototype in <math.h> */
2201 # ifndef HAS_MODFL_PROTO
2202 EXTERN_C long double modfl(long double, long double *);
2204 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2205 extern long double Perl_my_modfl(long double x, long double *ip);
2206 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2211 # define Perl_frexp(x,y) frexpl(x,y)
2212 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2213 extern long double Perl_my_frexpl(long double x, int *e);
2214 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2219 # define Perl_ldexp(x, y) ldexpl(x,y)
2220 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2221 # define Perl_ldexp(x,y) scalbnl(x,y)
2225 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2226 # define Perl_isnan(x) isnanl(x)
2227 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2228 # define Perl_isnan(x) isnan(x)
2232 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2233 # define Perl_isinf(x) isinfl(x)
2234 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2235 # define Perl_isinf(x) isinf(x)
2236 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2237 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2240 # ifndef Perl_isfinite
2241 # define Perl_isfinite(x) Perl_isfinitel(x)
2243 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2244 # include <quadmath.h>
2245 # define NV_DIG FLT128_DIG
2246 # define NV_MANT_DIG FLT128_MANT_DIG
2247 # define NV_MIN FLT128_MIN
2248 # define NV_MAX FLT128_MAX
2249 # define NV_MIN_EXP FLT128_MIN_EXP
2250 # define NV_MAX_EXP FLT128_MAX_EXP
2251 # define NV_EPSILON FLT128_EPSILON
2252 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2253 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2254 # define Perl_acos acosq
2255 # define Perl_asin asinq
2256 # define Perl_atan atanq
2257 # define Perl_atan2 atan2q
2258 # define Perl_ceil ceilq
2259 # define Perl_cos cosq
2260 # define Perl_cosh coshq
2261 # define Perl_exp expq
2262 /* no Perl_fabs, but there's PERL_ABS */
2263 # define Perl_floor floorq
2264 # define Perl_fmod fmodq
2265 # define Perl_log logq
2266 # define Perl_log10 log10q
2267 # define Perl_signbit signbitq
2268 # define Perl_pow powq
2269 # define Perl_sin sinq
2270 # define Perl_sinh sinhq
2271 # define Perl_sqrt sqrtq
2272 # define Perl_tan tanq
2273 # define Perl_tanh tanhq
2274 # define Perl_modf(x,y) modfq(x,y)
2275 # define Perl_frexp(x,y) frexpq(x,y)
2276 # define Perl_ldexp(x, y) ldexpq(x,y)
2277 # define Perl_isinf(x) isinfq(x)
2278 # define Perl_isnan(x) isnanq(x)
2279 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2280 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2281 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2282 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2283 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2284 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2285 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2287 # define NV_DIG DBL_DIG
2288 # define NV_MANT_DIG DBL_MANT_DIG
2289 # define NV_MIN DBL_MIN
2290 # define NV_MAX DBL_MAX
2291 # define NV_MIN_EXP DBL_MIN_EXP
2292 # define NV_MAX_EXP DBL_MAX_EXP
2293 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2294 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2295 # define NV_EPSILON DBL_EPSILON
2296 # define NV_MAX DBL_MAX
2297 # define NV_MIN DBL_MIN
2299 /* These math interfaces are C89. */
2300 # define Perl_acos acos
2301 # define Perl_asin asin
2302 # define Perl_atan atan
2303 # define Perl_atan2 atan2
2304 # define Perl_ceil ceil
2305 # define Perl_cos cos
2306 # define Perl_cosh cosh
2307 # define Perl_exp exp
2308 /* no Perl_fabs, but there's PERL_ABS */
2309 # define Perl_floor floor
2310 # define Perl_fmod fmod
2311 # define Perl_log log
2312 # define Perl_log10 log10
2313 # define Perl_pow pow
2314 # define Perl_sin sin
2315 # define Perl_sinh sinh
2316 # define Perl_sqrt sqrt
2317 # define Perl_tan tan
2318 # define Perl_tanh tanh
2320 # define Perl_modf(x,y) modf(x,y)
2321 # define Perl_frexp(x,y) frexp(x,y)
2322 # define Perl_ldexp(x,y) ldexp(x,y)
2326 # define Perl_isnan(x) isnan(x)
2330 # if defined(HAS_ISINF)
2331 # define Perl_isinf(x) isinf(x)
2332 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2333 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2336 # ifndef Perl_isfinite
2337 # ifdef HAS_ISFINITE
2338 # define Perl_isfinite(x) isfinite(x)
2339 # elif defined(HAS_FINITE)
2340 # define Perl_isfinite(x) finite(x)
2345 /* fpclassify(): C99. It is supposed to be a macro that switches on
2346 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2347 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2349 # if defined(FP_INFINITE) && defined(FP_NAN)
2350 # define Perl_fp_class(x) fpclassify(x)
2351 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2352 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2353 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2354 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2355 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2356 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2357 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2358 * actually not the C99 fpclassify, with its own set of return defines. */
2359 # define Perl_fp_class(x) fpclassify(x)
2360 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2361 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2362 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2363 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2364 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2365 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2366 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2367 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2368 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2369 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2371 # undef Perl_fp_class /* Unknown set of defines */
2375 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2376 * are identical to the C99 fpclassify(). */
2377 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2380 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2382 /* oh, and the isnormal macro has a typo in it! */
2384 # define isnormal(x) Perl_fp_class_norm(x)
2386 # if defined(FP_INFINITE) && defined(FP_NAN)
2387 # define Perl_fp_class(x) fp_classify(x)
2388 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2389 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2390 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2391 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2392 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2394 # undef Perl_fp_class /* Unknown set of defines */
2398 /* Feel free to check with me for the SGI manpages, SGI testing,
2399 * etcetera, if you want to try getting this to work with IRIX.
2401 * - Allen <allens@cpan.org> */
2403 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2404 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2405 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2406 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2407 * Define some symbols also as cpp symbols so we can detect them. */
2408 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2409 # define FP_PINF FP_PINF
2410 # define FP_QNAN FP_QNAN
2414 # include <ieeefp.h>
2419 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2420 # define Perl_fp_class(x) fpclassl(x)
2422 # define Perl_fp_class(x) fpclass(x)
2424 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2425 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2426 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2427 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2428 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2429 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2430 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2431 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2432 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2433 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2434 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2435 # elif defined(FP_PINF) && defined(FP_QNAN)
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_ninf(x) (Perl_fp_class(x)==FP_NINF)
2439 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2440 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2441 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2442 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2443 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2444 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2445 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2447 # undef Perl_fp_class /* Unknown set of defines */
2451 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2452 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2454 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2455 # include <fp_class.h>
2457 # if defined(FP_POS_INF) && defined(FP_QNAN)
2458 # ifdef __sgi /* XXX Configure test instead */
2459 # ifdef USE_LONG_DOUBLE
2460 # define Perl_fp_class(x) fp_class_l(x)
2462 # define Perl_fp_class(x) fp_class_d(x)
2465 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2466 # define Perl_fp_class(x) fp_classl(x)
2468 # define Perl_fp_class(x) fp_class(x)
2471 # if defined(FP_POS_INF) && defined(FP_QNAN)
2472 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2473 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2474 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2475 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2476 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2477 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2478 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2479 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2480 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2481 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2483 # undef Perl_fp_class /* Unknown set of defines */
2488 /* class(), _class(): Legacy: AIX. */
2489 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2491 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2493 # define Perl_fp_class(x) class(x)
2495 # define Perl_fp_class(x) _class(x)
2497 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2498 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2499 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2500 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2501 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2502 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2503 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2504 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2505 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2506 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2507 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2509 # undef Perl_fp_class /* Unknown set of defines */
2514 /* Win32: _fpclass(), _isnan(), _finite(). */
2517 # define Perl_isnan(x) _isnan(x)
2519 # ifndef Perl_isfinite
2520 # define Perl_isfinite(x) _finite(x)
2522 # ifndef Perl_fp_class_snan
2523 /* No simple way to #define Perl_fp_class because _fpclass()
2524 * returns a set of bits. */
2525 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2526 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2527 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2528 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2529 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2530 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2531 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2532 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2533 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2534 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2535 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2536 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2537 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2538 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2539 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2543 #if !defined(Perl_fp_class_inf) && \
2544 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2545 # define Perl_fp_class_inf(x) \
2546 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2549 #if !defined(Perl_fp_class_nan) && \
2550 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2551 # define Perl_fp_class_nan(x) \
2552 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2555 #if !defined(Perl_fp_class_zero) && \
2556 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2557 # define Perl_fp_class_zero(x) \
2558 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2561 #if !defined(Perl_fp_class_norm) && \
2562 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2563 # define Perl_fp_class_norm(x) \
2564 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2567 #if !defined(Perl_fp_class_denorm) && \
2568 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2569 # define Perl_fp_class_denorm(x) \
2570 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2574 # ifdef Perl_fp_class_nan
2575 # define Perl_isnan(x) Perl_fp_class_nan(x)
2576 # elif defined(HAS_UNORDERED)
2577 # define Perl_isnan(x) unordered((x), 0.0)
2579 # define Perl_isnan(x) ((x)!=(x))
2584 # ifdef Perl_fp_class_inf
2585 # define Perl_isinf(x) Perl_fp_class_inf(x)
2589 #ifndef Perl_isfinite
2590 # if defined(HAS_ISFINITE) && !defined(isfinite)
2591 # define Perl_isfinite(x) isfinite((double)(x))
2592 # elif defined(HAS_FINITE)
2593 # define Perl_isfinite(x) finite((double)(x))
2594 # elif defined(Perl_fp_class_finite)
2595 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2597 /* For the infinities the multiplication returns nan,
2598 * for the nan the multiplication also returns nan,
2599 * for everything else (that is, finite) zero should be returned. */
2600 # define Perl_isfinite(x) (((x) * 0) == 0)
2605 # if defined(Perl_isfinite) && defined(Perl_isnan)
2606 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2610 /* We need Perl_isfinitel (ends with ell) (if available) even when
2611 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2613 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2614 /* If isfinite() is a macro and looks like we have C99,
2615 * we assume it's the type-aware C99 isfinite(). */
2616 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2617 # define Perl_isfinitel(x) isfinite(x)
2618 # elif defined(HAS_ISFINITEL)
2619 # define Perl_isfinitel(x) isfinitel(x)
2620 # elif defined(HAS_FINITEL)
2621 # define Perl_isfinitel(x) finitel(x)
2622 # elif defined(HAS_INFL) && defined(HAS_NANL)
2623 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2625 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2629 /* The default is to use Perl's own atof() implementation (in numeric.c).
2630 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2631 * it is however best to use the native implementation of atof.
2632 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2633 * Some good tests to try out with either setting are t/base/num.t,
2634 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2635 * you may need to be using a different function than atof! */
2637 #ifndef USE_PERL_ATOF
2639 # define USE_PERL_ATOF
2642 # if USE_PERL_ATOF == 0
2643 # undef USE_PERL_ATOF
2647 #ifdef USE_PERL_ATOF
2648 # define Perl_atof(s) Perl_my_atof(s)
2649 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2651 # define Perl_atof(s) (NV)atof(s)
2652 # define Perl_atof2(s, n) ((n) = atof(s))
2654 #define my_atof2(a,b) my_atof3(a,b,0)
2657 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2658 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2659 * depending on local options. Until Configure detects this (or at least
2660 * detects whether the "signed" keyword is available) the CHAR ranges
2661 * will not be included. UCHAR functions normally.
2665 #define PERL_UCHAR_MIN ((unsigned char)0)
2666 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2668 #define PERL_USHORT_MIN ((unsigned short)0)
2669 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2671 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2672 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2674 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2675 #define PERL_UINT_MIN ((unsigned int)0)
2677 #define PERL_INT_MAX ((int)INT_MAX)
2678 #define PERL_INT_MIN ((int)INT_MIN)
2680 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2681 #define PERL_ULONG_MIN ((unsigned long)0L)
2683 #define PERL_LONG_MAX ((long)LONG_MAX)
2684 #define PERL_LONG_MIN ((long)LONG_MIN)
2687 # define PERL_UQUAD_MAX (~(UV)0)
2688 # define PERL_UQUAD_MIN ((UV)0)
2689 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2690 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2694 =for apidoc_section Integer configuration values
2696 =for apidoc AmnU||PERL_INT_MAX
2697 =for apidoc_item ||PERL_INT_MIN
2698 =for apidoc_item ||PERL_LONG_MAX
2699 =for apidoc_item ||PERL_LONG_MIN
2700 =for apidoc_item ||PERL_SHORT_MAX
2701 =for apidoc_item ||PERL_SHORT_MIN
2702 =for apidoc_item ||PERL_UCHAR_MAX
2703 =for apidoc_item ||PERL_UCHAR_MIN
2704 =for apidoc_item ||PERL_UINT_MAX
2705 =for apidoc_item ||PERL_UINT_MIN
2706 =for apidoc_item ||PERL_ULONG_MAX
2707 =for apidoc_item ||PERL_ULONG_MIN
2708 =for apidoc_item ||PERL_USHORT_MAX
2709 =for apidoc_item ||PERL_USHORT_MIN
2710 =for apidoc_item ||PERL_QUAD_MAX
2711 =for apidoc_item ||PERL_QUAD_MIN
2712 =for apidoc_item ||PERL_UQUAD_MAX
2713 =for apidoc_item ||PERL_UQUAD_MIN
2715 These give the largest and smallest number representable in the current
2716 platform in variables of the corresponding types.
2718 For signed types, the smallest representable number is the most negative
2719 number, the one furthest away from zero.
2721 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2722 are available to the C code. But these constants, furnished by Perl,
2723 allow code compiled on earlier compilers to portably have access to the same
2730 typedef MEM_SIZE STRLEN;
2732 typedef struct op OP;
2733 typedef struct cop COP;
2734 typedef struct unop UNOP;
2735 typedef struct unop_aux UNOP_AUX;
2736 typedef struct binop BINOP;
2737 typedef struct listop LISTOP;
2738 typedef struct logop LOGOP;
2739 typedef struct pmop PMOP;
2740 typedef struct svop SVOP;
2741 typedef struct padop PADOP;
2742 typedef struct pvop PVOP;
2743 typedef struct loop LOOP;
2744 typedef struct methop METHOP;
2747 typedef struct opslab OPSLAB;
2748 typedef struct opslot OPSLOT;
2751 typedef struct block_hooks BHK;
2752 typedef struct custom_op XOP;
2754 typedef struct interpreter PerlInterpreter;
2756 /* SGI's <sys/sema.h> has struct sv */
2758 # define STRUCT_SV perl_sv
2760 # define STRUCT_SV sv
2762 typedef struct STRUCT_SV SV;
2763 typedef struct av AV;
2764 typedef struct hv HV;
2765 typedef struct cv CV;
2766 typedef struct p5rx REGEXP;
2767 typedef struct gp GP;
2768 typedef struct gv GV;
2769 typedef struct io IO;
2770 typedef struct context PERL_CONTEXT;
2771 typedef struct block BLOCK;
2773 typedef struct magic MAGIC;
2774 typedef struct xpv XPV;
2775 typedef struct xpviv XPVIV;
2776 typedef struct xpvuv XPVUV;
2777 typedef struct xpvnv XPVNV;
2778 typedef struct xpvmg XPVMG;
2779 typedef struct xpvlv XPVLV;
2780 typedef struct xpvinvlist XINVLIST;
2781 typedef struct xpvav XPVAV;
2782 typedef struct xpvhv XPVHV;
2783 typedef struct xpvgv XPVGV;
2784 typedef struct xpvcv XPVCV;
2785 typedef struct xpvbm XPVBM;
2786 typedef struct xpvfm XPVFM;
2787 typedef struct xpvio XPVIO;
2788 typedef struct mgvtbl MGVTBL;
2789 typedef union any ANY;
2790 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2791 typedef struct ptr_tbl PTR_TBL_t;
2792 typedef struct clone_params CLONE_PARAMS;
2794 /* a pad is currently just an AV; but that might change,
2795 * so hide the type. */
2796 typedef struct padlist PADLIST;
2798 typedef struct padnamelist PADNAMELIST;
2799 typedef struct padname PADNAME;
2801 /* always enable PERL_OP_PARENT */
2802 #if !defined(PERL_OP_PARENT)
2803 # define PERL_OP_PARENT
2806 /* enable PERL_COPY_ON_WRITE by default */
2807 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2808 # define PERL_COPY_ON_WRITE
2811 #ifdef PERL_COPY_ON_WRITE
2812 # define PERL_ANY_COW
2814 # define PERL_SAWAMPERSAND
2817 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2818 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2822 #include "charclass_invlists.h"
2824 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2825 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2826 # define USE_64_BIT_RAWIO /* implicit */
2830 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2831 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2832 * however, because operating systems like to do that themself. */
2835 # define FSEEKSIZE LSEEKSIZE
2837 # define FSEEKSIZE LONGSIZE
2841 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2842 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2843 # define USE_64_BIT_STDIO /* implicit */
2847 #ifdef USE_64_BIT_RAWIO
2850 # define Off_t off64_t
2852 # define LSEEKSIZE 8
2854 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2855 * will trigger defines like the ones below. Some 64-bit environments,
2856 * however, do not. Therefore we have to explicitly mix and match. */
2857 # if defined(USE_OPEN64)
2858 # define open open64
2860 # if defined(USE_LSEEK64)
2861 # define lseek lseek64
2863 # if defined(USE_LLSEEK)
2864 # define lseek llseek
2867 # if defined(USE_STAT64)
2868 # define stat stat64
2870 # if defined(USE_FSTAT64)
2871 # define fstat fstat64
2873 # if defined(USE_LSTAT64)
2874 # define lstat lstat64
2876 # if defined(USE_FLOCK64)
2877 # define flock flock64
2879 # if defined(USE_LOCKF64)
2880 # define lockf lockf64
2882 # if defined(USE_FCNTL64)
2883 # define fcntl fcntl64
2885 # if defined(USE_TRUNCATE64)
2886 # define truncate truncate64
2888 # if defined(USE_FTRUNCATE64)
2889 # define ftruncate ftruncate64
2893 #ifdef USE_64_BIT_STDIO
2894 # ifdef HAS_FPOS64_T
2896 # define Fpos_t fpos64_t
2898 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2899 * will trigger defines like the ones below. Some 64-bit environments,
2900 * however, do not. */
2901 # if defined(USE_FOPEN64)
2902 # define fopen fopen64
2904 # if defined(USE_FSEEK64)
2905 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2907 # if defined(USE_FTELL64)
2908 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2910 # if defined(USE_FSETPOS64)
2911 # define fsetpos fsetpos64
2913 # if defined(USE_FGETPOS64)
2914 # define fgetpos fgetpos64
2916 # if defined(USE_TMPFILE64)
2917 # define tmpfile tmpfile64
2919 # if defined(USE_FREOPEN64)
2920 # define freopen freopen64
2925 # include "iperlsys.h"
2930 # include "os2ish.h"
2932 # include "dosish.h"
2935 # include "vmsish.h"
2936 #elif defined(PLAN9)
2937 # include "./plan9/plan9ish.h"
2938 #elif defined(__VOS__)
2940 # include "./vos/vosish.h"
2942 # include "vos/vosish.h"
2944 #elif defined(__HAIKU__)
2945 # include "haiku/haikuish.h"
2947 # include "unixish.h"
2951 # include "amigaos.h"
2952 # undef FD_CLOEXEC /* a lie in AmigaOS */
2955 /* NSIG logic from Configure --> */
2958 # define NSIG (_NSIG)
2959 # elif defined(SIGMAX)
2960 # define NSIG (SIGMAX+1)
2961 # elif defined(SIG_MAX)
2962 # define NSIG (SIG_MAX+1)
2963 # elif defined(_SIG_MAX)
2964 # define NSIG (_SIG_MAX+1)
2965 # elif defined(MAXSIG)
2966 # define NSIG (MAXSIG+1)
2967 # elif defined(MAX_SIG)
2968 # define NSIG (MAX_SIG+1)
2969 # elif defined(SIGARRAYSIZE)
2970 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2971 # elif defined(_sys_nsig)
2972 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2974 /* Default to some arbitrary number that's big enough to get most
2975 * of the common signals. */
2979 /* <-- NSIG logic from Configure */
2981 #ifndef NO_ENVIRON_ARRAY
2982 # define USE_ENVIRON_ARRAY
2986 /* On some platforms it would be safe to use a read/write mutex with many
2987 * readers possible at the same time. On other platforms, notably IBM ones,
2988 * subsequent getenv calls destroy earlier ones. Those platforms would not
2989 * be able to handle simultaneous getenv calls */
2990 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2991 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2992 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2993 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2995 # define ENV_LOCK NOOP;
2996 # define ENV_UNLOCK NOOP;
2997 # define ENV_INIT NOOP;
2998 # define ENV_TERM NOOP;
3001 /* Some critical sections need to lock both the locale and the environment.
3002 * XXX khw intends to change this to lock both mutexes, but that brings up
3003 * issues of potential deadlock, so should be done at the beginning of a
3004 * development cycle. So for now, it just locks the environment. Note that
3005 * many modern platforms are locale-thread-safe anyway, so locking the locale
3006 * mutex is a no-op anyway */
3007 #define ENV_LOCALE_LOCK ENV_LOCK
3008 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
3010 /* And some critical sections care only that no one else is writing either the
3011 * locale nor the environment. XXX Again this is for the future. This can be
3012 * simulated with using COND_WAIT in thread.h */
3013 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
3014 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
3016 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3017 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
3018 * signal handlers. But the perl core itself only fully supports 1-arg
3019 * handlers, so don't enable for now.
3020 * NB: POSIX::sigaction() supports both.
3022 * # define PERL_USE_3ARG_SIGHANDLER
3027 * This is an alias for the OS's siginfo_t, except that where the OS
3028 * doesn't support it, declare a dummy version instead. This allows us to
3029 * have signal handler functions which always have a Siginfo_t parameter
3030 * regardless of platform, (and which will just be passed a NULL value
3031 * where the OS doesn't support HAS_SIGACTION).
3034 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3035 typedef siginfo_t Siginfo_t;
3037 #ifdef si_signo /* minix */
3047 * initialise to avoid floating-point exceptions from overflow, etc
3049 #ifndef PERL_FPU_INIT
3050 # ifdef HAS_FPSETMASK
3051 # if HAS_FLOATINGPOINT_H
3052 # include <floatingpoint.h>
3054 /* Some operating systems have this as a macro, which in turn expands to a comma
3055 expression, and the last sub-expression is something that gets calculated,
3056 and then they have the gall to warn that a value computed is not used. Hence
3058 # define PERL_FPU_INIT (void)fpsetmask(0)
3059 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3060 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3061 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3062 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3064 # define PERL_FPU_INIT
3067 #ifndef PERL_FPU_PRE_EXEC
3068 # define PERL_FPU_PRE_EXEC {
3069 # define PERL_FPU_POST_EXEC }
3072 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3073 * We need to reenable the "invalid" trap because otherwise generation
3074 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3075 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3077 # include <machine/fpu.h>
3078 # define PERL_SYS_FPU_INIT \
3080 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3081 signal(SIGFPE, SIG_IGN); \
3084 /* In IRIX the default for Flush to Zero bit is true,
3085 * which means that results going below the minimum of normal
3086 * floating points go to zero, instead of going denormal/subnormal.
3087 * This is unlike almost any other system running Perl, so let's clear it.
3088 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3089 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3091 * XXX The flush-to-zero behaviour should be a Configure scan.
3092 * To change the behaviour usually requires some system-specific
3093 * incantation, though, like the below. */
3095 # include <sys/fpu.h>
3096 # define PERL_SYS_FPU_INIT \
3098 union fpc_csr csr; \
3099 csr.fc_word = get_fpc_csr(); \
3100 csr.fc_struct.flush = 0; \
3101 set_fpc_csr(csr.fc_word); \
3105 #ifndef PERL_SYS_FPU_INIT
3106 # define PERL_SYS_FPU_INIT NOOP
3109 #ifndef PERL_SYS_INIT3_BODY
3110 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3114 =for apidoc_section Embedding and Interpreter Cloning
3116 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3117 Provides system-specific tune up of the C runtime environment necessary to
3118 run Perl interpreters. This should be called only once, before creating
3119 any Perl interpreters.
3121 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3122 Provides system-specific tune up of the C runtime environment necessary to
3123 run Perl interpreters. This should be called only once, before creating
3124 any Perl interpreters.
3126 =for apidoc Am|void|PERL_SYS_TERM|
3127 Provides system-specific clean up of the C runtime environment after
3128 running Perl interpreters. This should be called only once, after
3129 freeing any remaining Perl interpreters.
3134 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3135 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3136 #define PERL_SYS_TERM() Perl_sys_term()
3138 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3139 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3144 # ifdef _POSIX_PATH_MAX
3145 # if PATH_MAX > _POSIX_PATH_MAX
3146 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3147 * included the null byte or not. Later amendments of POSIX,
3148 * XPG4, the Austin Group, and the Single UNIX Specification
3149 * all explicitly include the null byte in the PATH_MAX.
3150 * Ditto for _POSIX_PATH_MAX. */
3151 # define MAXPATHLEN PATH_MAX
3153 # define MAXPATHLEN _POSIX_PATH_MAX
3156 # define MAXPATHLEN (PATH_MAX+1)
3159 # define MAXPATHLEN 1024 /* Err on the large side. */
3163 /* clang Thread Safety Analysis/Annotations/Attributes
3164 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3166 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3167 * Apple XCode hijacks __clang_major__ and __clang_minor__
3168 * (6.1 means really clang 3.6), so needs extra hijinks
3169 * (could probably also test the contents of __apple_build_version__).
3171 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3172 defined(__clang__) && \
3174 ((!defined(__apple_build_version__) && \
3175 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3176 (__clang_major__ >= 4))) || \
3177 (defined(__apple_build_version__) && \
3178 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3179 (__clang_major__ >= 7))))
3180 # define PERL_TSA__(x) __attribute__((x))
3181 # define PERL_TSA_ACTIVE
3183 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3184 # undef PERL_TSA_ACTIVE
3187 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3188 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3190 #define PERL_TSA_CAPABILITY(x) \
3191 PERL_TSA__(capability(x))
3193 /* In the below examples the mutex must be lexically visible, usually
3194 * either as global variables, or as function arguments. */
3196 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3198 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3200 #define PERL_TSA_GUARDED_BY(x) \
3201 PERL_TSA__(guarded_by(x))
3203 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3204 * The data _behind_ the pointer is guarded.
3206 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3208 #define PERL_TSA_PT_GUARDED_BY(x) \
3209 PERL_TSA__(pt_guarded_by(x))
3211 /* PERL_TSA_REQUIRES() is used to annotate functions.
3212 * The caller MUST hold the resource when calling the function.
3214 * void Foo() PERL_TSA_REQUIRES(mutex);
3216 #define PERL_TSA_REQUIRES(x) \
3217 PERL_TSA__(requires_capability(x))
3219 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3220 * The caller MUST NOT hold resource when calling the function.
3222 * EXCLUDES should be used when the function first acquires
3223 * the resource and then releases it. Use to avoid deadlock.
3225 * void Foo() PERL_TSA_EXCLUDES(mutex);
3227 #define PERL_TSA_EXCLUDES(x) \
3228 PERL_TSA__(locks_excluded(x))
3230 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3231 * The caller MUST NOT hold the resource when calling the function,
3232 * and the function will acquire the resource.
3234 * void Foo() PERL_TSA_ACQUIRE(mutex);
3236 #define PERL_TSA_ACQUIRE(x) \
3237 PERL_TSA__(acquire_capability(x))
3239 /* PERL_TSA_RELEASE() is used to annotate functions.
3240 * The caller MUST hold the resource when calling the function,
3241 * and the function will release the resource.
3243 * void Foo() PERL_TSA_RELEASE(mutex);
3245 #define PERL_TSA_RELEASE(x) \
3246 PERL_TSA__(release_capability(x))
3248 /* PERL_TSA_NO_TSA is used to annotate functions.
3249 * Used when being intentionally unsafe, or when the code is too
3250 * complicated for the analysis. Use sparingly.
3252 * void Foo() PERL_TSA_NO_TSA;
3254 #define PERL_TSA_NO_TSA \
3255 PERL_TSA__(no_thread_safety_analysis)
3257 /* There are more annotations/attributes available, see the clang
3258 * documentation for details. */
3260 #if defined(USE_ITHREADS)
3262 # include <nw5thread.h>
3263 # elif defined(WIN32)
3264 # include <win32thread.h>
3266 # include "os2thread.h"
3267 # elif defined(I_MACH_CTHREADS)
3268 # include <mach/cthreads.h>
3269 typedef cthread_t perl_os_thread;
3270 typedef mutex_t perl_mutex;
3271 typedef condition_t perl_cond;
3272 typedef void * perl_key;
3273 # elif defined(I_PTHREAD) /* Posix threads */
3274 # include <pthread.h>
3275 typedef pthread_t perl_os_thread;
3276 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3277 typedef pthread_cond_t perl_cond;
3278 typedef pthread_key_t perl_key;
3280 #endif /* USE_ITHREADS */
3282 #ifdef PERL_TSA_ACTIVE
3283 /* Since most pthread mutex interfaces have not been annotated, we
3284 * need to have these wrappers. The NO_TSA annotation is quite ugly
3285 * but it cannot be avoided in plain C, unlike in C++, where one could
3286 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3288 * The bodies of these wrappers are in util.c
3290 * TODO: however, some platforms are starting to get these clang
3291 * thread safety annotations for pthreads, for example FreeBSD.
3292 * Do we need a way to a bypass these wrappers? */
3293 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3294 PERL_TSA_ACQUIRE(*mutex)
3296 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3297 PERL_TSA_RELEASE(*mutex)
3306 # include "netware.h"
3309 #define STATUS_UNIX PL_statusvalue
3311 # define STATUS_NATIVE PL_statusvalue_vms
3313 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3314 * its contents can not be trusted. Unfortunately, Perl seems to check
3315 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3318 # include <stsdef.h>
3320 /* Presume this because if VMS changes it, it will require a new
3321 * set of APIs for waiting on children for binary compatibility.
3323 # define child_offset_bits (8)
3324 # ifndef C_FAC_POSIX
3325 # define C_FAC_POSIX 0x35A000
3328 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3329 * platform from the existing UNIX or Native status values.
3332 # define STATUS_EXIT \
3333 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3334 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3337 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3338 * exit code and shifts the UNIX value over the correct number of bits to
3339 * be a child status. Usually the number of bits is 8, but that could be
3340 * platform dependent. The NATIVE status code is presumed to have either
3341 * from a child process.
3344 /* This is complicated. The child processes return a true native VMS
3345 status which must be saved. But there is an assumption in Perl that
3346 the UNIX child status has some relationship to errno values, so
3347 Perl tries to translate it to text in some of the tests.
3348 In order to get the string translation correct, for the error, errno
3349 must be EVMSERR, but that generates a different text message
3350 than what the test programs are expecting. So an errno value must
3351 be derived from the native status value when an error occurs.
3352 That will hide the true native status message. With this version of
3353 perl, the true native child status can always be retrieved so that
3354 is not a problem. But in this case, Pl_statusvalue and errno may
3355 have different values in them.
3358 # define STATUS_NATIVE_CHILD_SET(n) \
3360 I32 evalue = (I32)n; \
3361 if (evalue == EVMSERR) { \
3362 PL_statusvalue_vms = vaxc$errno; \
3363 PL_statusvalue = evalue; \
3365 PL_statusvalue_vms = evalue; \
3366 if (evalue == -1) { \
3367 PL_statusvalue = -1; \
3368 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3370 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3371 set_vaxc_errno(evalue); \
3372 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3373 set_errno(EVMSERR); \
3374 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3375 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3379 # ifdef VMSISH_STATUS
3380 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3382 # define STATUS_CURRENT STATUS_UNIX
3385 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3386 * the NATIVE status to an equivalent value. Can not be used to translate
3387 * exit code values as exit code values are not guaranteed to have any
3388 * relationship at all to errno values.
3389 * This is used when Perl is forcing errno to have a specific value.
3391 # define STATUS_UNIX_SET(n) \
3393 I32 evalue = (I32)n; \
3394 PL_statusvalue = evalue; \
3395 if (PL_statusvalue != -1) { \
3396 if (PL_statusvalue != EVMSERR) { \
3397 PL_statusvalue &= 0xFFFF; \
3398 if (MY_POSIX_EXIT) \
3399 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3400 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3403 PL_statusvalue_vms = vaxc$errno; \
3406 else PL_statusvalue_vms = SS$_ABORT; \
3407 set_vaxc_errno(PL_statusvalue_vms); \
3410 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3411 * the NATIVE error status based on it.
3413 * When in the default mode to comply with the Perl VMS documentation,
3414 * 0 is a success and any other code sets the NATIVE status to a failure
3415 * code of SS$_ABORT.
3417 * In the new POSIX EXIT mode, native status will be set so that the
3418 * actual exit code will can be retrieved by the calling program or
3421 * If the exit code is not clearly a UNIX parent or child exit status,
3422 * it will be passed through as a VMS status.
3425 # define STATUS_UNIX_EXIT_SET(n) \
3427 I32 evalue = (I32)n; \
3428 PL_statusvalue = evalue; \
3429 if (MY_POSIX_EXIT) { \
3430 if (evalue <= 0xFF00) { \
3431 if (evalue > 0xFF) \
3432 evalue = (evalue >> child_offset_bits) & 0xFF; \
3433 PL_statusvalue_vms = \
3434 (C_FAC_POSIX | (evalue << 3 ) | \
3435 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3436 } else /* forgive them Perl, for they have sinned */ \
3437 PL_statusvalue_vms = evalue; \
3440 PL_statusvalue_vms = SS$_NORMAL; \
3441 else if (evalue <= 0xFF00) \
3442 PL_statusvalue_vms = SS$_ABORT; \
3443 else { /* forgive them Perl, for they have sinned */ \
3444 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3445 else PL_statusvalue_vms = vaxc$errno; \
3446 /* And obviously used a VMS status value instead of UNIX */ \
3447 PL_statusvalue = EVMSERR; \
3449 set_vaxc_errno(PL_statusvalue_vms); \
3454 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3455 * and sets the NATIVE error status based on it. This special case
3456 * is needed to maintain compatibility with past VMS behavior.
3458 * In the default mode on VMS, this number is passed through as
3459 * both the NATIVE and UNIX status. Which makes it different
3460 * that the STATUS_UNIX_EXIT_SET.
3462 * In the new POSIX EXIT mode, native status will be set so that the
3463 * actual exit code will can be retrieved by the calling program or
3466 * A POSIX exit code is from 0 to 255. If the exit code is higher
3467 * than this, it needs to be assumed that it is a VMS exit code and
3471 # define STATUS_EXIT_SET(n) \
3473 I32 evalue = (I32)n; \
3474 PL_statusvalue = evalue; \
3475 if (MY_POSIX_EXIT) \
3476 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3477 PL_statusvalue_vms = \
3478 (C_FAC_POSIX | (evalue << 3 ) | \
3479 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3481 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3482 set_vaxc_errno(PL_statusvalue_vms); \
3486 /* This macro forces a success status */
3487 # define STATUS_ALL_SUCCESS \
3488 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3490 /* This macro forces a failure status */
3491 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3492 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3493 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3495 #elif defined(__amigaos4__)
3496 /* A somewhat experimental attempt to simulate posix return code values */
3497 # define STATUS_NATIVE PL_statusvalue_posix
3498 # define STATUS_NATIVE_CHILD_SET(n) \
3500 PL_statusvalue_posix = (n); \
3501 if (PL_statusvalue_posix < 0) { \
3502 PL_statusvalue = -1; \
3505 PL_statusvalue = n << 8; \
3508 # define STATUS_UNIX_SET(n) \
3510 PL_statusvalue = (n); \
3511 if (PL_statusvalue != -1) \
3512 PL_statusvalue &= 0xFFFF; \
3514 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3515 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3516 # define STATUS_CURRENT STATUS_UNIX
3517 # define STATUS_EXIT STATUS_UNIX
3518 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3519 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3522 # define STATUS_NATIVE PL_statusvalue_posix
3523 # if defined(WCOREDUMP)
3524 # define STATUS_NATIVE_CHILD_SET(n) \
3526 PL_statusvalue_posix = (n); \
3527 if (PL_statusvalue_posix == -1) \
3528 PL_statusvalue = -1; \
3531 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3532 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3533 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3536 # elif defined(WIFEXITED)
3537 # define STATUS_NATIVE_CHILD_SET(n) \
3539 PL_statusvalue_posix = (n); \
3540 if (PL_statusvalue_posix == -1) \
3541 PL_statusvalue = -1; \
3544 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3545 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3549 # define STATUS_NATIVE_CHILD_SET(n) \
3551 PL_statusvalue_posix = (n); \
3552 if (PL_statusvalue_posix == -1) \
3553 PL_statusvalue = -1; \
3556 PL_statusvalue_posix & 0xFFFF; \
3560 # define STATUS_UNIX_SET(n) \
3562 PL_statusvalue = (n); \
3563 if (PL_statusvalue != -1) \
3564 PL_statusvalue &= 0xFFFF; \
3566 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3567 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3568 # define STATUS_CURRENT STATUS_UNIX
3569 # define STATUS_EXIT STATUS_UNIX
3570 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3571 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3574 /* flags in PL_exit_flags for nature of exit() */
3575 #define PERL_EXIT_EXPECTED 0x01
3576 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3577 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3578 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3581 /* format to use for version numbers in file/directory names */
3582 /* XXX move to Configure? */
3583 /* This was only ever used for the current version, and that can be done at
3584 compile time, as PERL_FS_VERSION, so should we just delete it? */
3585 # ifndef PERL_FS_VER_FMT
3586 # define PERL_FS_VER_FMT "%d.%d.%d"
3590 #ifndef PERL_FS_VERSION
3591 # define PERL_FS_VERSION PERL_VERSION_STRING
3594 /* This defines a way to flush all output buffers. This may be a
3595 * performance issue, so we allow people to disable it. Also, if
3596 * we are using stdio, there are broken implementations of fflush(NULL)
3597 * out there, Solaris being the most prominent.
3599 #ifndef PERL_FLUSHALL_FOR_CHILD
3600 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3601 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3602 # elif defined(FFLUSH_ALL)
3603 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3605 # define PERL_FLUSHALL_FOR_CHILD NOOP
3609 #ifndef PERL_WAIT_FOR_CHILDREN
3610 # define PERL_WAIT_FOR_CHILDREN NOOP
3613 /* the traditional thread-unsafe notion of "current interpreter". */
3614 #ifndef PERL_SET_INTERP
3615 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3618 #ifndef PERL_GET_INTERP
3619 # define PERL_GET_INTERP (PL_curinterp)
3622 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3623 # ifdef MULTIPLICITY
3624 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3626 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3630 This replaces the previous %_ "hack" by the "%p" hacks.
3631 All that is required is that the perl source does not
3632 use "%-p" or "%-<number>p" or "%<number>p" formats.
3633 These formats will still work in perl code.
3634 See comments in sv.c for further details.
3636 Robin Barker 2005-07-14
3638 No longer use %1p for VDf = %vd. RMB 2007-10-19
3642 # define SVf_(n) "-" STRINGIFY(n) "p"
3650 # define SVf32 SVf_(32)
3654 # define SVf256 SVf_(256)
3657 #define SVfARG(p) ((void*)(p))
3663 /* Not ideal, but we cannot easily include a number in an already-numeric
3664 * format sequence. */
3666 # define HEKf256 "3p"
3669 #define HEKfARG(p) ((void*)(p))
3671 /* Documented in perlguts
3673 * %4p is a custom format
3676 # define UTF8f "d%" UVuf "%4p"
3678 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3681 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3684 /* not used; but needed for backward compatibility with XS code? - RMB */
3690 #if !defined(DEBUGGING) && !defined(NDEBUG)
3695 /* For functions that are marked as __attribute__noreturn__, it's not
3696 appropriate to call return. In either case, include the lint directive.
3698 #ifdef HASATTRIBUTE_NORETURN
3699 # define NORETURN_FUNCTION_END NOT_REACHED;
3701 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3704 #ifdef HAS_BUILTIN_EXPECT
3705 # define EXPECT(expr,val) __builtin_expect(expr,val)
3707 # define EXPECT(expr,val) (expr)
3711 =for apidoc_section Compiler directives
3713 =for apidoc Am||LIKELY|bool expr
3715 Returns the input unchanged, but at the same time it gives a branch prediction
3716 hint to the compiler that this condition is likely to be true.
3718 =for apidoc Am||UNLIKELY|bool expr
3720 Returns the input unchanged, but at the same time it gives a branch prediction
3721 hint to the compiler that this condition is likely to be false.
3725 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3726 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3728 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3732 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3733 time invariants. That is, their argument must be a constant expression that
3734 can be verified by the compiler. This expression can contain anything that's
3735 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3736 the expression evaluates to 0, compilation fails.
3737 Because they generate no runtime code (i.e. their use is "free"), they're
3738 always active, even under non-DEBUGGING builds.
3739 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3740 file scope (outside of any function).
3741 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3744 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3745 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3746 || (__STDC_VERSION__ - 0) >= 201101L)) \
3747 || (defined(__cplusplus) && __cplusplus >= 201103L))
3748 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3749 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3750 matter what <assert.h> says.
3752 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3754 /* We use a bit-field instead of an array because gcc accepts
3755 'typedef char x[n]' where n is not a compile-time constant.
3756 We want to enforce constantness.
3758 # define STATIC_ASSERT_2(COND, SUFFIX) \
3760 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3761 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3762 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3763 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3765 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3766 error (static_assert is a declaration, and only statements can have labels).
3768 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3770 #ifndef __has_builtin
3771 # define __has_builtin(x) 0 /* not a clang style compiler */
3774 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3775 hint to a compiler about a statement of fact in a function call free
3776 expression, which allows the compiler to generate better machine code.
3777 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3778 the control path is unreachable. In a for loop, ASSUME can be used to hint
3779 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3780 intrinsic function, see its documents for more details.
3784 # if __has_builtin(__builtin_unreachable) \
3785 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3786 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3787 # elif defined(_MSC_VER)
3788 # define ASSUME(x) __assume(x)
3789 # elif defined(__ARMCC_VERSION) /* untested */
3790 # define ASSUME(x) __promise(x)
3792 /* a random compiler might define assert to its own special optimization token
3793 so pass it through to C lib as a last resort */
3794 # define ASSUME(x) assert(x)
3797 # define ASSUME(x) assert(x)
3800 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3801 # define NOT_REACHED
3802 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3803 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3804 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3806 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3809 /* Some unistd.h's give a prototype for pause() even though
3810 HAS_PAUSE ends up undefined. This causes the #define
3811 below to be rejected by the compiler. Sigh.
3816 #define Pause() sleep((32767<<16)+32767)
3820 # ifdef IOCPARM_MASK
3821 /* on BSDish systems we're safe */
3822 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3823 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3824 /* on Linux systems we're safe; except when we're not [perl #38223] */
3825 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3827 /* otherwise guess at what's safe */
3828 # define IOCPARM_LEN(x) 256
3832 #if defined(__CYGWIN__)
3834 * This symbol, if defined, indicates that the program should
3835 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3836 * that a file is in "binary" mode -- that is, that no translation
3837 * of bytes occurs on read or write operations.
3839 # define USEMYBINMODE /**/
3840 # include <io.h> /* for setmode() prototype */
3841 # define my_binmode(fp, iotype, mode) \
3842 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3846 void init_os_extras(void);
3849 #ifdef UNION_ANY_DEFINITION
3850 UNION_ANY_DEFINITION;
3868 void (*any_dptr) (void*);
3869 void (*any_dxptr) (pTHX_ void*);
3873 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3875 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3876 #define FILTER_DATA(idx) \
3877 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3878 #define FILTER_ISREADER(idx) \
3879 (PL_parser && PL_parser->rsfp_filters \
3880 && idx >= AvFILLp(PL_parser->rsfp_filters))
3881 #define PERL_FILTER_EXISTS(i) \
3882 (PL_parser && PL_parser->rsfp_filters \
3883 && (Size_t) (i) < av_count(PL_parser->rsfp_filters))
3885 #if defined(_AIX) && !defined(_AIX43)
3886 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3887 /* We cannot include <crypt.h> to get the struct crypt_data
3888 * because of setkey prototype problems when threading */
3889 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3890 /* From OSF, Not needed in AIX
3898 #endif /* threading */
3901 #ifndef PERL_CALLCONV
3903 # define PERL_CALLCONV extern "C"
3905 # define PERL_CALLCONV
3908 #ifndef PERL_CALLCONV_NO_RET
3909 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3912 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3913 dont have a noreturn as a declaration specifier
3915 #ifndef PERL_STATIC_NO_RET
3916 # define PERL_STATIC_NO_RET STATIC
3918 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3919 builds that dont have a noreturn as a declaration specifier
3921 #ifndef PERL_STATIC_INLINE_NO_RET
3922 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3925 #ifndef PERL_STATIC_FORCE_INLINE
3926 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3929 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3930 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3934 # include "iperlsys.h"
3937 #ifdef __LIBCATAMOUNT__
3938 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3940 #define FAKE_BIT_BUCKET
3943 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3944 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3945 * Configure, despite their names being similar to other defines like
3946 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3947 * hashes. Therefore to enable/disable the hash randomisation defines
3948 * use the Configure -Accflags=... instead. */
3949 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3950 # define USE_HASH_SEED
3956 /* macros to define bit-fields in structs. */
3957 #ifndef PERL_BITFIELD8
3958 # define PERL_BITFIELD8 U8
3960 #ifndef PERL_BITFIELD16
3961 # define PERL_BITFIELD16 U16
3963 #ifndef PERL_BITFIELD32
3964 # define PERL_BITFIELD32 U32
3974 #include "opnames.h"
3981 #include "warnings.h"
3984 /* these would be in doio.h if there was such a file */
3985 #define my_stat() my_stat_flags(SV_GMAGIC)
3986 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3988 /* defined in sv.c, but also used in [ach]v.c */
3991 #undef _XPVCV_COMMON
3995 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3997 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) \
3998 || defined(PERL_EXT_RE_BUILD)
4000 /* These have to be predeclared, as they are used in proto.h which is #included
4001 * before their definitions in regcomp.h. */
4004 typedef struct regnode_charclass regnode_charclass;
4006 /* A hopefully less confusing name. The sub-classes are all Posix classes only
4007 * used under /l matching */
4008 typedef struct regnode_charclass_posixl regnode_charclass_class;
4009 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
4011 typedef struct regnode_ssc regnode_ssc;
4012 typedef struct RExC_state_t RExC_state_t;
4013 struct _reg_trie_data;
4017 struct ptr_tbl_ent {
4018 struct ptr_tbl_ent* next;
4024 struct ptr_tbl_ent** tbl_ary;
4027 struct ptr_tbl_arena *tbl_arena;
4028 struct ptr_tbl_ent *tbl_arena_next;
4029 struct ptr_tbl_ent *tbl_arena_end;
4032 #if defined(htonl) && !defined(HAS_HTONL)
4035 #if defined(htons) && !defined(HAS_HTONS)
4038 #if defined(ntohl) && !defined(HAS_NTOHL)
4041 #if defined(ntohs) && !defined(HAS_NTOHS)
4049 # if (BYTEORDER & 0xffff) == 0x4321
4050 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4051 re-order their values. However, to behave identically to the alternative
4052 implementations, they should truncate to the correct size. */
4053 # define ntohl(x) ((x)&0xFFFFFFFF)
4054 # define htonl(x) ntohl(x)
4055 # define ntohs(x) ((x)&0xFFFF)
4056 # define htons(x) ntohs(x)
4057 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4059 /* Note that we can't straight out declare our own htonl and htons because
4060 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4061 to avoid the overhead of initialising the socket subsystem, but the headers
4062 that *declare* the various functions are still seen. If we declare our own
4063 htonl etc they will clash with the declarations in the Win32 headers. */
4065 PERL_STATIC_INLINE U32
4066 my_swap32(const U32 x) {
4067 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4068 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4071 PERL_STATIC_INLINE U16
4072 my_swap16(const U16 x) {
4073 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4076 # define htonl(x) my_swap32(x)
4077 # define ntohl(x) my_swap32(x)
4078 # define ntohs(x) my_swap16(x)
4079 # define htons(x) my_swap16(x)
4081 # error "Unsupported byteorder"
4082 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4083 the error message. Please check the value of the macro BYTEORDER, as defined
4084 in config.h. The values of BYTEORDER we expect are
4086 big endian little endian
4087 32 bit 0x4321 0x1234
4088 64 bit 0x87654321 0x12345678
4090 If you have a system with a different byte order, please see
4091 pod/perlhack.pod for how to submit a patch to add supporting code.
4097 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4100 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4101 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4102 re-order their values. However, to behave identically to the alternative
4103 implementations, they should truncate to the correct size. */
4104 # define vtohl(x) ((x)&0xFFFFFFFF)
4105 # define vtohs(x) ((x)&0xFFFF)
4106 # define htovl(x) vtohl(x)
4107 # define htovs(x) vtohs(x)
4108 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4109 # define vtohl(x) ((((x)&0xFF)<<24) \
4111 +(((x)&0x0000FF00)<<8) \
4112 +(((x)&0x00FF0000)>>8) )
4113 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4114 # define htovl(x) vtohl(x)
4115 # define htovs(x) vtohs(x)
4117 # error "Unsupported byteorder"
4118 /* If you have need for current perl on PDP-11 or similar, and can help test
4119 that blead keeps working on a mixed-endian system, then see
4120 pod/perlhack.pod for how to submit patches to things working again. */
4123 /* *MAX Plus 1. A floating point value.
4124 Hopefully expressed in a way that dodgy floating point can't mess up.
4125 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4127 May find that some broken compiler will want the value cast to I32.
4128 [after the shift, as signed >> may not be as secure as unsigned >>]
4130 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4131 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4132 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4133 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4134 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4136 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4138 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4139 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4140 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4142 /* This may look like unnecessary jumping through hoops, but converting
4143 out of range floating point values to integers *is* undefined behaviour,
4144 and it is starting to bite.
4147 #define I_32(what) (cast_i32((NV)(what)))
4148 #define U_32(what) (cast_ulong((NV)(what)))
4149 #define I_V(what) (cast_iv((NV)(what)))
4150 #define U_V(what) (cast_uv((NV)(what)))
4152 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4153 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4154 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4155 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4156 : ((n) < U32_MAX_P1 ? (U32) (n) \
4157 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4158 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4159 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4160 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4161 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4162 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4163 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4166 #define U_S(what) ((U16)U_32(what))
4167 #define U_I(what) ((unsigned int)U_32(what))
4168 #define U_L(what) U_32(what)
4171 # ifndef Perl_signbit
4172 # define Perl_signbit signbit
4176 /* These do not care about the fractional part, only about the range. */
4177 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4178 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4180 /* Used with UV/IV arguments: */
4181 /* XXXX: need to speed it up */
4182 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4183 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4191 Uid_t getuid (void);
4192 Uid_t geteuid (void);
4193 Gid_t getgid (void);
4194 Gid_t getegid (void);
4198 #ifndef Perl_debug_log
4199 # define Perl_debug_log PerlIO_stderr()
4202 #ifndef Perl_error_log
4203 # define Perl_error_log (PL_stderrgv \
4204 && isGV(PL_stderrgv) \
4205 && GvIOp(PL_stderrgv) \
4206 && IoOFP(GvIOp(PL_stderrgv)) \
4207 ? IoOFP(GvIOp(PL_stderrgv)) \
4212 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4213 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4214 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4215 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4216 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4217 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4218 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4219 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4220 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4221 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4222 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4223 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4224 /* U is reserved for Unofficial, exploratory hacking */
4225 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4227 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4228 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4229 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4230 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4231 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4232 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4233 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4234 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4235 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4236 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4237 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4238 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4239 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4240 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4241 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4242 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4244 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4245 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4247 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4248 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4249 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4250 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4251 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4252 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4253 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4254 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4255 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4256 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4257 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4258 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4259 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4260 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4261 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4262 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4263 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4264 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4265 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4266 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4267 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4268 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4269 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4270 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4271 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4272 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4273 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4274 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4275 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4276 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4277 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4278 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4279 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4283 # define DEBUG_p_TEST DEBUG_p_TEST_
4284 # define DEBUG_s_TEST DEBUG_s_TEST_
4285 # define DEBUG_l_TEST DEBUG_l_TEST_
4286 # define DEBUG_t_TEST DEBUG_t_TEST_
4287 # define DEBUG_o_TEST DEBUG_o_TEST_
4288 # define DEBUG_c_TEST DEBUG_c_TEST_
4289 # define DEBUG_P_TEST DEBUG_P_TEST_
4290 # define DEBUG_m_TEST DEBUG_m_TEST_
4291 # define DEBUG_f_TEST DEBUG_f_TEST_
4292 # define DEBUG_r_TEST DEBUG_r_TEST_
4293 # define DEBUG_x_TEST DEBUG_x_TEST_
4294 # define DEBUG_u_TEST DEBUG_u_TEST_
4295 # define DEBUG_U_TEST DEBUG_U_TEST_
4296 # define DEBUG_X_TEST DEBUG_X_TEST_
4297 # define DEBUG_D_TEST DEBUG_D_TEST_
4298 # define DEBUG_S_TEST DEBUG_S_TEST_
4299 # define DEBUG_T_TEST DEBUG_T_TEST_
4300 # define DEBUG_R_TEST DEBUG_R_TEST_
4301 # define DEBUG_J_TEST DEBUG_J_TEST_
4302 # define DEBUG_v_TEST DEBUG_v_TEST_
4303 # define DEBUG_C_TEST DEBUG_C_TEST_
4304 # define DEBUG_A_TEST DEBUG_A_TEST_
4305 # define DEBUG_q_TEST DEBUG_q_TEST_
4306 # define DEBUG_M_TEST DEBUG_M_TEST_
4307 # define DEBUG_B_TEST DEBUG_B_TEST_
4308 # define DEBUG_L_TEST DEBUG_L_TEST_
4309 # define DEBUG_i_TEST DEBUG_i_TEST_
4310 # define DEBUG_y_TEST DEBUG_y_TEST_
4311 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4312 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4313 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4314 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4315 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4317 # define PERL_DEB(a) a
4318 # define PERL_DEB2(a,b) a
4319 # define PERL_DEBUG(a) if (PL_debug) a
4320 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4321 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4322 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4323 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4324 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4325 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4326 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4328 /* Temporarily turn off memory debugging in case the a
4329 * does memory allocation, either directly or indirectly. */
4330 # define DEBUG_m(a) \
4332 if (PERL_GET_INTERP) { \
4334 if (DEBUG_m_TEST) { \
4335 PL_debug &= ~DEBUG_m_FLAG; \
4337 PL_debug |= DEBUG_m_FLAG; \
4342 # define DEBUG__(t, a) \
4344 if (t) STMT_START {a;} STMT_END; \
4347 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4349 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4350 # ifdef PERL_EXT_RE_BUILD
4351 # define DEBUG_r(a) STMT_START {a;} STMT_END
4353 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4354 # endif /* PERL_EXT_RE_BUILD */
4356 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4357 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4358 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4359 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4360 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4361 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4362 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4363 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4364 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4365 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4367 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4368 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4369 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4370 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4371 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4372 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4373 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4374 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4375 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4376 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4377 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4378 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4380 #else /* ! DEBUGGING below */
4382 # define DEBUG_p_TEST (0)
4383 # define DEBUG_s_TEST (0)
4384 # define DEBUG_l_TEST (0)
4385 # define DEBUG_t_TEST (0)
4386 # define DEBUG_o_TEST (0)
4387 # define DEBUG_c_TEST (0)
4388 # define DEBUG_P_TEST (0)
4389 # define DEBUG_m_TEST (0)
4390 # define DEBUG_f_TEST (0)
4391 # define DEBUG_r_TEST (0)
4392 # define DEBUG_x_TEST (0)
4393 # define DEBUG_u_TEST (0)
4394 # define DEBUG_U_TEST (0)
4395 # define DEBUG_X_TEST (0)
4396 # define DEBUG_D_TEST (0)
4397 # define DEBUG_S_TEST (0)
4398 # define DEBUG_T_TEST (0)
4399 # define DEBUG_R_TEST (0)
4400 # define DEBUG_J_TEST (0)
4401 # define DEBUG_v_TEST (0)
4402 # define DEBUG_C_TEST (0)
4403 # define DEBUG_A_TEST (0)
4404 # define DEBUG_q_TEST (0)
4405 # define DEBUG_M_TEST (0)
4406 # define DEBUG_B_TEST (0)
4407 # define DEBUG_L_TEST (0)
4408 # define DEBUG_i_TEST (0)
4409 # define DEBUG_y_TEST (0)
4410 # define DEBUG_Xv_TEST (0)
4411 # define DEBUG_Uv_TEST (0)
4412 # define DEBUG_Pv_TEST (0)
4413 # define DEBUG_Lv_TEST (0)
4414 # define DEBUG_yv_TEST (0)
4416 # define PERL_DEB(a)
4417 # define PERL_DEB2(a,b) b
4418 # define PERL_DEBUG(a)
4446 # define DEBUG_Xv(a)
4447 # define DEBUG_Uv(a)
4448 # define DEBUG_Pv(a)
4449 # define DEBUG_Lv(a)
4450 # define DEBUG_yv(a)
4451 #endif /* DEBUGGING */
4454 #define DEBUG_SCOPE(where) \
4456 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4457 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4458 __FILE__, __LINE__));
4460 /* Keep the old croak based assert for those who want it, and as a fallback if
4461 the platform is so heretically non-ANSI that it can't assert. */
4463 #define Perl_assert(what) PERL_DEB2( \
4464 ((what) ? ((void) 0) : \
4465 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4466 "\", line %d", STRINGIFY(what), __LINE__), \
4467 (void) 0)), ((void)0))
4469 /* assert() gets defined if DEBUGGING.
4470 * If no DEBUGGING, the <assert.h> has not been included. */
4472 # define assert(what) Perl_assert(what)
4475 # define assert_(what) assert(what),
4477 # define assert_(what)
4481 I32 (*uf_val)(pTHX_ IV, SV*);
4482 I32 (*uf_set)(pTHX_ IV, SV*);
4486 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4487 * XS code wanting to be backward compatible can do something
4488 * like the following:
4490 #ifndef PERL_MG_UFUNC
4491 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4494 static PERL_MG_UFUNC(foo_get, index, val)
4504 #ifndef PERL_MG_UFUNC
4505 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4510 /* isfinite and others are here rather than in math.h as C99 stipulates */
4515 # if !defined(WIN32) && !defined(VMS)
4517 char *crypt (const char*, const char*);
4519 # endif /* !WIN32 */
4522 char *getlogin (void);
4524 # endif /* !WIN32 */
4525 #endif /* !__cplusplus */
4527 /* Fixme on VMS. This needs to be a run-time, not build time options */
4528 /* Also rename() is affected by this */
4529 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4530 #define UNLINK unlnk
4531 I32 unlnk (pTHX_ const char*);
4533 #define UNLINK PerlLIO_unlink
4536 /* some versions of glibc are missing the setresuid() proto */
4537 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4538 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4540 /* some versions of glibc are missing the setresgid() proto */
4541 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4542 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4545 #ifndef HAS_SETREUID
4546 # ifdef HAS_SETRESUID
4547 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4548 # define HAS_SETREUID
4551 #ifndef HAS_SETREGID
4552 # ifdef HAS_SETRESGID
4553 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4554 # define HAS_SETREGID
4558 /* Sighandler_t defined in iperlsys.h */
4560 #ifdef HAS_SIGACTION
4561 typedef struct sigaction Sigsave_t;
4563 typedef Sighandler_t Sigsave_t;
4574 # define RUNOPS_DEFAULT Perl_runops_debug
4576 # define RUNOPS_DEFAULT Perl_runops_standard
4579 #if defined(USE_PERLIO)
4580 EXTERN_C void PerlIO_teardown(void);
4581 # ifdef USE_ITHREADS
4582 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4583 # define PERLIO_TERM \
4585 PerlIO_teardown(); \
4586 MUTEX_DESTROY(&PL_perlio_mutex);\
4589 # define PERLIO_INIT
4590 # define PERLIO_TERM PerlIO_teardown()
4593 # define PERLIO_INIT
4594 # define PERLIO_TERM
4598 # ifdef MUTEX_INIT_CALLS_MALLOC
4599 # define MALLOC_INIT \
4601 PL_malloc_mutex = NULL; \
4602 MUTEX_INIT(&PL_malloc_mutex); \
4604 # define MALLOC_TERM \
4606 perl_mutex tmp = PL_malloc_mutex; \
4607 PL_malloc_mutex = NULL; \
4608 MUTEX_DESTROY(&tmp); \
4611 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4612 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4615 # define MALLOC_INIT
4616 # define MALLOC_TERM
4619 #if defined(PERL_IMPLICIT_CONTEXT)
4621 struct perl_memory_debug_header;
4622 struct perl_memory_debug_header {
4624 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4627 struct perl_memory_debug_header *prev;
4628 struct perl_memory_debug_header *next;
4629 # ifdef PERL_DEBUG_READONLY_COW
4634 #elif defined(PERL_DEBUG_READONLY_COW)
4636 struct perl_memory_debug_header;
4637 struct perl_memory_debug_header {
4643 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4645 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4646 (sizeof(struct perl_memory_debug_header) + \
4647 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4648 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4651 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4654 #ifdef PERL_TRACK_MEMPOOL
4655 # ifdef PERL_DEBUG_READONLY_COW
4656 # define INIT_TRACK_MEMPOOL(header, interp) \
4658 (header).interpreter = (interp); \
4659 (header).prev = (header).next = &(header); \
4660 (header).readonly = 0; \
4663 # define INIT_TRACK_MEMPOOL(header, interp) \
4665 (header).interpreter = (interp); \
4666 (header).prev = (header).next = &(header); \
4670 # define INIT_TRACK_MEMPOOL(header, interp)
4673 #ifdef I_MALLOCMALLOC
4674 /* Needed for malloc_size(), malloc_good_size() on some systems */
4675 # include <malloc/malloc.h>
4679 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4681 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4682 # ifdef PERL_TRACK_MEMPOOL
4683 # define Perl_safesysmalloc_size(where) \
4684 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4686 # define Perl_safesysmalloc_size(where) malloc_size(where)
4689 # ifdef HAS_MALLOC_GOOD_SIZE
4690 # ifdef PERL_TRACK_MEMPOOL
4691 # define Perl_malloc_good_size(how_much) \
4692 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4694 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4697 /* Having this as the identity operation makes some code simpler. */
4698 # define Perl_malloc_good_size(how_much) (how_much)
4702 typedef int (*runops_proc_t)(pTHX);
4703 typedef void (*share_proc_t) (pTHX_ SV *sv);
4704 typedef int (*thrhook_proc_t) (pTHX);
4705 typedef OP* (*PPADDR_t[]) (pTHX);
4706 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4707 typedef void (*despatch_signals_proc_t) (pTHX);
4709 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4710 # include <crt_externs.h> /* for the env array */
4711 # define environ (*_NSGetEnviron())
4712 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4713 /* VMS and some other platforms don't use the environ array */
4714 EXTERN_C char **environ; /* environment variables supplied via exec */
4717 #define PERL_PATCHLEVEL_H_IMPLICIT
4718 #include "patchlevel.h"
4719 #undef PERL_PATCHLEVEL_H_IMPLICIT
4721 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4722 STRINGIFY(PERL_VERSION) "." \
4723 STRINGIFY(PERL_SUBVERSION)
4725 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4726 STRINGIFY(PERL_API_VERSION) "." \
4727 STRINGIFY(PERL_API_SUBVERSION)
4731 /* handy constants */
4732 EXTCONST char PL_warn_uninit[]
4733 INIT("Use of uninitialized value%s%s%s");
4734 EXTCONST char PL_warn_uninit_sv[]
4735 INIT("Use of uninitialized value%" SVf "%s%s");
4736 EXTCONST char PL_warn_nosemi[]
4737 INIT("Semicolon seems to be missing");
4738 EXTCONST char PL_warn_reserved[]
4739 INIT("Unquoted string \"%s\" may clash with future reserved word");
4740 EXTCONST char PL_warn_nl[]
4741 INIT("Unsuccessful %s on filename containing newline");
4742 EXTCONST char PL_no_wrongref[]
4743 INIT("Can't use %s ref as %s ref");
4744 /* The core no longer needs this here. If you require the string constant,
4745 please inline a copy into your own code. */
4746 EXTCONST char PL_no_symref[] __attribute__deprecated__
4747 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4748 EXTCONST char PL_no_symref_sv[]
4749 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4751 EXTCONST char PL_no_usym[]
4752 INIT("Can't use an undefined value as %s reference");
4753 EXTCONST char PL_no_aelem[]
4754 INIT("Modification of non-creatable array value attempted, subscript %d");
4755 EXTCONST char PL_no_helem_sv[]
4756 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4757 EXTCONST char PL_no_modify[]
4758 INIT("Modification of a read-only value attempted");
4759 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4760 INIT("Out of memory!\n");
4761 EXTCONST char PL_no_security[]
4762 INIT("Insecure dependency in %s%s");
4763 EXTCONST char PL_no_sock_func[]
4764 INIT("Unsupported socket function \"%s\" called");
4765 EXTCONST char PL_no_dir_func[]
4766 INIT("Unsupported directory function \"%s\" called");
4767 EXTCONST char PL_no_func[]
4768 INIT("The %s function is unimplemented");
4769 EXTCONST char PL_no_myglob[]
4770 INIT("\"%s\" %s %s can't be in a package");
4771 EXTCONST char PL_no_localize_ref[]
4772 INIT("Can't localize through a reference");
4773 EXTCONST char PL_memory_wrap[]
4774 INIT("panic: memory wrap");
4775 EXTCONST char PL_extended_cp_format[]
4776 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4777 " and so is not portable");
4778 EXTCONST char PL_Yes[]
4780 EXTCONST char PL_No[]
4782 EXTCONST char PL_Zero[]
4786 =for apidoc_section Numeric Functions
4787 =for apidoc AmTuU|const char *|PL_hexdigit|U8 value
4789 This array, indexed by an integer, converts that value into the character that
4790 represents it. For example, if the input is 8, the return will be a string
4791 whose first character is '8'. What is actually returned is a pointer into a
4792 string. All you are interested in is the first character of that string. To
4793 get uppercase letters (for the values 10..15), add 16 to the index. Hence,
4794 C<PL_hexdigit[11]> is C<'b'>, and C<PL_hexdigit[11+16]> is C<'B'>. Adding 16
4795 to an index whose representation is '0'..'9' yields the same as not adding 16.
4796 Indices outside the range 0..31 result in (bad) undedefined behavior.
4800 EXTCONST char PL_hexdigit[]
4801 INIT("0123456789abcdef0123456789ABCDEF");
4803 EXTCONST STRLEN PL_WARN_ALL
4805 EXTCONST STRLEN PL_WARN_NONE
4808 /* This is constant on most architectures, a global on OS/2 */
4810 EXTCONST char PL_sh_path[]
4811 INIT(SH_PATH); /* full path of shell */
4815 EXTCONST char PL_cshname[]
4817 # define PL_cshlen (sizeof(CSH "") - 1)
4820 /* These are baked at compile time into any shared perl library.
4821 In future releases this will allow us in main() to sanity test the
4822 library we're linking against. */
4824 EXTCONST U8 PL_revision
4825 INIT(PERL_REVISION);
4826 EXTCONST U8 PL_version
4828 EXTCONST U8 PL_subversion
4829 INIT(PERL_SUBVERSION);
4831 EXTCONST char PL_uuemap[65]
4832 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4834 /* a special string address whose value is "isa", but which perl knows
4835 * to treat as if it were really "DOES" when printing the method name in
4836 * the "Can't call method '%s'" error message */
4837 EXTCONST char PL_isa_DOES[]
4841 EXTCONST char PL_uudmap[256] =
4843 # include "uuudmap.h"
4845 # include "uudmap.h"
4848 EXTCONST char PL_bitcount[256] =
4850 # include "ubitcount.h"
4852 # include "bitcount.h"
4855 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4856 EXTCONST int PL_sig_num[] = { SIG_NUM };
4858 EXTCONST char PL_uudmap[256];
4859 EXTCONST char PL_bitcount[256];
4860 EXTCONST char* const PL_sig_name[];
4861 EXTCONST int PL_sig_num[];
4864 /* fast conversion and case folding tables. The folding tables complement the
4865 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4866 * folds such as outside the range or to multiple characters. */
4871 /* The EBCDIC fold table depends on the code page, and hence is found in
4872 * ebcdic_tables.h */
4874 EXTCONST unsigned char PL_fold[] = {
4875 0, 1, 2, 3, 4, 5, 6, 7,
4876 8, 9, 10, 11, 12, 13, 14, 15,
4877 16, 17, 18, 19, 20, 21, 22, 23,
4878 24, 25, 26, 27, 28, 29, 30, 31,
4879 32, 33, 34, 35, 36, 37, 38, 39,
4880 40, 41, 42, 43, 44, 45, 46, 47,
4881 48, 49, 50, 51, 52, 53, 54, 55,
4882 56, 57, 58, 59, 60, 61, 62, 63,
4883 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4884 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4885 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4886 'x', 'y', 'z', 91, 92, 93, 94, 95,
4887 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4888 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4889 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4890 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4891 128, 129, 130, 131, 132, 133, 134, 135,
4892 136, 137, 138, 139, 140, 141, 142, 143,
4893 144, 145, 146, 147, 148, 149, 150, 151,
4894 152, 153, 154, 155, 156, 157, 158, 159,
4895 160, 161, 162, 163, 164, 165, 166, 167,
4896 168, 169, 170, 171, 172, 173, 174, 175,
4897 176, 177, 178, 179, 180, 181, 182, 183,
4898 184, 185, 186, 187, 188, 189, 190, 191,
4899 192, 193, 194, 195, 196, 197, 198, 199,
4900 200, 201, 202, 203, 204, 205, 206, 207,
4901 208, 209, 210, 211, 212, 213, 214, 215,
4902 216, 217, 218, 219, 220, 221, 222, 223,
4903 224, 225, 226, 227, 228, 229, 230, 231,
4904 232, 233, 234, 235, 236, 237, 238, 239,
4905 240, 241, 242, 243, 244, 245, 246, 247,
4906 248, 249, 250, 251, 252, 253, 254, 255
4909 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4910 0, 1, 2, 3, 4, 5, 6, 7,
4911 8, 9, 10, 11, 12, 13, 14, 15,
4912 16, 17, 18, 19, 20, 21, 22, 23,
4913 24, 25, 26, 27, 28, 29, 30, 31,
4914 32, 33, 34, 35, 36, 37, 38, 39,
4915 40, 41, 42, 43, 44, 45, 46, 47,
4916 48, 49, 50, 51, 52, 53, 54, 55,
4917 56, 57, 58, 59, 60, 61, 62, 63,
4918 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4919 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4920 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4921 'x', 'y', 'z', 91, 92, 93, 94, 95,
4922 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4923 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4924 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4925 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4926 128, 129, 130, 131, 132, 133, 134, 135,
4927 136, 137, 138, 139, 140, 141, 142, 143,
4928 144, 145, 146, 147, 148, 149, 150, 151,
4929 152, 153, 154, 155, 156, 157, 158, 159,
4930 160, 161, 162, 163, 164, 165, 166, 167,
4931 168, 169, 170, 171, 172, 173, 174, 175,
4932 176, 177, 178, 179, 180, 181, 182, 183,
4933 184, 185, 186, 187, 188, 189, 190, 191,
4934 192, 193, 194, 195, 196, 197, 198, 199,
4935 200, 201, 202, 203, 204, 205, 206, 207,
4936 208, 209, 210, 211, 212, 213, 214, 215,
4937 216, 217, 218, 219, 220, 221, 222, 223,
4938 224, 225, 226, 227, 228, 229, 230, 231,
4939 232, 233, 234, 235, 236, 237, 238, 239,
4940 240, 241, 242, 243, 244, 245, 246, 247,
4941 248, 249, 250, 251, 252, 253, 254, 255
4944 EXTCONST unsigned char PL_fold_latin1[] = {
4945 /* Full latin1 complement folding, except for three problematic code points:
4946 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4947 * fold complements outside the Latin1 range, so can't match something
4948 * that isn't in utf8.
4949 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4950 * not one, so can't be represented in this table.
4952 * All have to be specially handled */
4953 0, 1, 2, 3, 4, 5, 6, 7,
4954 8, 9, 10, 11, 12, 13, 14, 15,
4955 16, 17, 18, 19, 20, 21, 22, 23,
4956 24, 25, 26, 27, 28, 29, 30, 31,
4957 32, 33, 34, 35, 36, 37, 38, 39,
4958 40, 41, 42, 43, 44, 45, 46, 47,
4959 48, 49, 50, 51, 52, 53, 54, 55,
4960 56, 57, 58, 59, 60, 61, 62, 63,
4961 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4962 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4963 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4964 'x', 'y', 'z', 91, 92, 93, 94, 95,
4965 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4966 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4967 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4968 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4969 128, 129, 130, 131, 132, 133, 134, 135,
4970 136, 137, 138, 139, 140, 141, 142, 143,
4971 144, 145, 146, 147, 148, 149, 150, 151,
4972 152, 153, 154, 155, 156, 157, 158, 159,
4973 160, 161, 162, 163, 164, 165, 166, 167,
4974 168, 169, 170, 171, 172, 173, 174, 175,
4975 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4976 184, 185, 186, 187, 188, 189, 190, 191,
4977 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4978 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4979 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4980 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4981 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4982 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4983 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4984 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4985 255 /* y with diaeresis */
4988 /* If these tables are accessed through ebcdic, the access will be converted to
4990 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4991 0, 1, 2, 3, 4, 5, 6, 7,
4992 8, 9, 10, 11, 12, 13, 14, 15,
4993 16, 17, 18, 19, 20, 21, 22, 23,
4994 24, 25, 26, 27, 28, 29, 30, 31,
4995 32, 33, 34, 35, 36, 37, 38, 39,
4996 40, 41, 42, 43, 44, 45, 46, 47,
4997 48, 49, 50, 51, 52, 53, 54, 55,
4998 56, 57, 58, 59, 60, 61, 62, 63,
4999 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5000 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5001 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5002 'x', 'y', 'z', 91, 92, 93, 94, 95,
5003 96, 97, 98, 99, 100, 101, 102, 103,
5004 104, 105, 106, 107, 108, 109, 110, 111,
5005 112, 113, 114, 115, 116, 117, 118, 119,
5006 120, 121, 122, 123, 124, 125, 126, 127,
5007 128, 129, 130, 131, 132, 133, 134, 135,
5008 136, 137, 138, 139, 140, 141, 142, 143,
5009 144, 145, 146, 147, 148, 149, 150, 151,
5010 152, 153, 154, 155, 156, 157, 158, 159,
5011 160, 161, 162, 163, 164, 165, 166, 167,
5012 168, 169, 170, 171, 172, 173, 174, 175,
5013 176, 177, 178, 179, 180, 181, 182, 183,
5014 184, 185, 186, 187, 188, 189, 190, 191,
5015 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5016 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5017 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5018 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
5019 224, 225, 226, 227, 228, 229, 230, 231,
5020 232, 233, 234, 235, 236, 237, 238, 239,
5021 240, 241, 242, 243, 244, 245, 246, 247,
5022 248, 249, 250, 251, 252, 253, 254, 255
5025 /* upper and title case of latin1 characters, modified so that the three tricky
5026 * ones are mapped to 255 (which is one of the three) */
5027 EXTCONST unsigned char PL_mod_latin1_uc[] = {
5028 0, 1, 2, 3, 4, 5, 6, 7,
5029 8, 9, 10, 11, 12, 13, 14, 15,
5030 16, 17, 18, 19, 20, 21, 22, 23,
5031 24, 25, 26, 27, 28, 29, 30, 31,
5032 32, 33, 34, 35, 36, 37, 38, 39,
5033 40, 41, 42, 43, 44, 45, 46, 47,
5034 48, 49, 50, 51, 52, 53, 54, 55,
5035 56, 57, 58, 59, 60, 61, 62, 63,
5036 64, 65, 66, 67, 68, 69, 70, 71,
5037 72, 73, 74, 75, 76, 77, 78, 79,
5038 80, 81, 82, 83, 84, 85, 86, 87,
5039 88, 89, 90, 91, 92, 93, 94, 95,
5040 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5041 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5042 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5043 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5044 128, 129, 130, 131, 132, 133, 134, 135,
5045 136, 137, 138, 139, 140, 141, 142, 143,
5046 144, 145, 146, 147, 148, 149, 150, 151,
5047 152, 153, 154, 155, 156, 157, 158, 159,
5048 160, 161, 162, 163, 164, 165, 166, 167,
5049 168, 169, 170, 171, 172, 173, 174, 175,
5050 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
5051 184, 185, 186, 187, 188, 189, 190, 191,
5052 192, 193, 194, 195, 196, 197, 198, 199,
5053 200, 201, 202, 203, 204, 205, 206, 207,
5054 208, 209, 210, 211, 212, 213, 214, 215,
5055 216, 217, 218, 219, 220, 221, 222,
5056 # if UNICODE_MAJOR_VERSION > 2 \
5057 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
5058 && UNICODE_DOT_DOT_VERSION >= 8)
5060 # else /* uc(sharp s) is 'sharp s' itself in early unicode */
5063 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5064 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5065 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5066 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
5068 # endif /* !EBCDIC, but still in DOINIT */
5069 #else /* ! DOINIT */
5071 EXTCONST unsigned char PL_fold[];
5072 EXTCONST unsigned char PL_fold_latin1[];
5073 EXTCONST unsigned char PL_mod_latin1_uc[];
5074 EXTCONST unsigned char PL_latin1_lc[];
5075 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
5079 /* Although only used for debugging, these constants must be available in
5080 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5081 * which has DEBUGGING enabled always */
5083 EXTCONST char* const PL_block_type[] = {
5099 EXTCONST char* PL_block_type[];
5102 /* These are all the compile time options that affect binary compatibility.
5103 Other compile time options that are binary compatible are in perl.c
5104 (in S_Internals_V()). Both are combined for the output of perl -V
5105 However, this string will be embedded in any shared perl library, which will
5106 allow us add a comparison check in perlmain.c in the near future. */
5108 EXTCONST char PL_bincompat_options[] =
5109 # ifdef DEBUG_LEAKING_SCALARS
5110 " DEBUG_LEAKING_SCALARS"
5112 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5113 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5118 # ifdef HAVE_INTERP_INTERN
5119 " HAVE_INTERP_INTERN"
5121 # ifdef MULTIPLICITY
5127 # ifdef PERLIO_LAYERS
5130 # ifdef PERL_DEBUG_READONLY_COW
5131 " PERL_DEBUG_READONLY_COW"
5133 # ifdef PERL_DEBUG_READONLY_OPS
5134 " PERL_DEBUG_READONLY_OPS"
5136 # ifdef PERL_IMPLICIT_CONTEXT
5137 " PERL_IMPLICIT_CONTEXT"
5139 # ifdef PERL_IMPLICIT_SYS
5140 " PERL_IMPLICIT_SYS"
5148 # ifdef PERL_SAWAMPERSAND
5149 " PERL_SAWAMPERSAND"
5151 # ifdef PERL_TRACK_MEMPOOL
5152 " PERL_TRACK_MEMPOOL"
5154 # ifdef PERL_USES_PL_PIDSTATUS
5155 " PERL_USES_PL_PIDSTATUS"
5157 # ifdef USE_64_BIT_ALL
5160 # ifdef USE_64_BIT_INT
5166 # ifdef USE_ITHREADS
5169 # ifdef USE_LARGE_FILES
5172 # ifdef USE_LOCALE_COLLATE
5173 " USE_LOCALE_COLLATE"
5175 # ifdef USE_LOCALE_NUMERIC
5176 " USE_LOCALE_NUMERIC"
5178 # ifdef USE_LOCALE_TIME
5181 # ifdef USE_LONG_DOUBLE
5187 # ifdef USE_QUADMATH
5190 # ifdef USE_REENTRANT_API
5191 " USE_REENTRANT_API"
5196 # ifdef VMS_DO_SOCKETS
5199 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5200 " VMS_SHORTEN_LONG_SYMBOLS"
5202 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5203 " VMS_SYMBOL_CASE_AS_IS"
5207 EXTCONST char PL_bincompat_options[];
5210 #ifndef PERL_SET_PHASE
5211 # define PERL_SET_PHASE(new_phase) \
5212 PERL_DTRACE_PROBE_PHASE(new_phase); \
5213 PL_phase = new_phase;
5216 /* The interpreter phases. If these ever change, PL_phase_names right below will
5217 * need to be updated accordingly. */
5219 PERL_PHASE_CONSTRUCT = 0,
5220 PERL_PHASE_START = 1,
5221 PERL_PHASE_CHECK = 2,
5222 PERL_PHASE_INIT = 3,
5225 PERL_PHASE_DESTRUCT = 6
5229 EXTCONST char *const PL_phase_names[] = {
5239 EXTCONST char *const PL_phase_names[];
5243 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5244 * instead of using the newer PL_phase, which provides everything PL_dirty
5245 * provided, and more. */
5246 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5248 # define PL_amagic_generation PL_na
5249 # define PL_encoding ((SV *)NULL)
5250 #endif /* !PERL_CORE */
5252 #define PL_hints PL_compiling.cop_hints
5253 #define PL_maxo MAXO
5257 /*****************************************************************************/
5258 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5259 /*****************************************************************************/
5260 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5263 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5272 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5280 XATTRBLOCK, /* next token should be an attribute or block */
5281 XATTRTERM, /* next token should be an attribute, or block in a term */
5285 XTERMORDORDOR /* evil hack */
5286 /* update exp_name[] in toke.c if adding to this enum */
5289 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5291 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5292 special and there is no need for HINT_PRIVATE_MASK for COPs
5293 However, bitops store HINT_INTEGER in their op_private.
5295 NOTE: The typical module using these has the bit value hard-coded, so don't
5296 blindly change the values of these.
5298 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5299 is for "use locale 'FOO'" which excludes some categories. It requires going
5300 to %^H to find out which are in and which are out. This could be extended
5301 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5303 #define HINT_INTEGER 0x00000001 /* integer pragma */
5304 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5305 #define HINT_LOCALE 0x00000004 /* locale pragma */
5306 #define HINT_BYTES 0x00000008 /* bytes pragma */
5307 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5309 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5310 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5311 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5313 #define HINT_BLOCK_SCOPE 0x00000100
5314 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5315 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5316 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5318 /* The HINT_NEW_* constants are used by the overload pragma */
5319 #define HINT_NEW_INTEGER 0x00001000
5320 #define HINT_NEW_FLOAT 0x00002000
5321 #define HINT_NEW_BINARY 0x00004000
5322 #define HINT_NEW_STRING 0x00008000
5323 #define HINT_NEW_RE 0x00010000
5324 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5325 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5326 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5328 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5329 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5331 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5332 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5334 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5336 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5338 #define HINT_FEATURE_MASK 0x3c000000 /* 4 bits for feature bundles */
5340 /* Note: Used for HINT_M_VMSISH_*,
5341 currently defined by vms/vmsish.h:
5346 /* The following are stored in $^H{sort}, not in PL_hints */
5347 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5348 #define HINT_SORT_UNSTABLE 0x00000200
5350 #define HINT_ALL_STRICT HINT_STRICT_REFS \
5351 | HINT_STRICT_SUBS \
5354 #ifdef USE_STRICT_BY_DEFAULT
5355 #define HINTS_DEFAULT HINT_ALL_STRICT
5357 #define HINTS_DEFAULT 0
5360 /* flags for PL_sawampersand */
5362 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5363 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5364 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5366 #ifndef PERL_SAWAMPERSAND
5367 # define PL_sawampersand \
5368 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5371 /* Used for debugvar magic */
5372 #define DBVARMG_SINGLE 0
5373 #define DBVARMG_TRACE 1
5374 #define DBVARMG_SIGNAL 2
5375 #define DBVARMG_COUNT 3
5377 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5378 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5379 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5381 /* Various states of the input record separator SV (rs) */
5382 #define RsSNARF(sv) (! SvOK(sv))
5383 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5384 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5385 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5387 /* A struct for keeping various DEBUGGING related stuff,
5388 * neatly packed. Currently only scratch variables for
5389 * constructing debug output are included. Needed always,
5390 * not just when DEBUGGING, though, because of the re extension. c*/
5391 struct perl_debug_pad {
5395 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5396 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5397 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5400 /* Enable variables which are pointers to functions */
5401 typedef void (*peep_t)(pTHX_ OP* o);
5402 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5403 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5404 char* strend, char* strbeg, I32 minend,
5405 SV* screamer, void* data, U32 flags);
5406 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5407 char *strpos, char *strend,
5409 re_scream_pos_data *d);
5410 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5411 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5412 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5413 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5415 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5416 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5417 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5418 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5419 typedef void (*XSINIT_t) (pTHX);
5420 typedef void (*ATEXIT_t) (pTHX_ void*);
5421 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5423 typedef OP* (*Perl_ppaddr_t)(pTHX);
5424 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5425 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5426 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5427 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5429 typedef void(*globhook_t)(pTHX);
5431 #define KEYWORD_PLUGIN_DECLINE 0
5432 #define KEYWORD_PLUGIN_STMT 1
5433 #define KEYWORD_PLUGIN_EXPR 2
5435 /* Interpreter exitlist entry */
5436 typedef struct exitlistentry {
5437 void (*fn) (pTHX_ void*);
5439 } PerlExitListEntry;
5441 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5442 /* These have to be before perlvars.h */
5443 #if !defined(HAS_SIGACTION) && defined(VMS)
5444 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5446 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5447 #if defined(KILL_BY_SIGPRC)
5448 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5451 #if !defined(MULTIPLICITY)
5453 struct interpreter {
5459 /* If we have multiple interpreters define a struct
5460 holding variables which must be per-interpreter
5461 If we don't have threads anything that would have
5462 be per-thread is per-interpreter.
5465 /* Set up PERLVAR macros for populating structs */
5466 # define PERLVAR(prefix,var,type) type prefix##var;
5468 /* 'var' is an array of length 'n' */
5469 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5471 /* initialize 'var' to init' */
5472 # define PERLVARI(prefix,var,type,init) type prefix##var;
5474 /* like PERLVARI, but make 'var' a const */
5475 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5477 struct interpreter {
5478 # include "intrpvar.h"
5481 EXTCONST U16 PL_interp_size
5482 INIT(sizeof(struct interpreter));
5484 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5485 STRUCT_OFFSET(struct interpreter, member) + \
5486 sizeof(((struct interpreter*)0)->member)
5488 /* This will be useful for subsequent releases, because this has to be the
5489 same in your libperl as in main(), else you have a mismatch and must abort.
5491 EXTCONST U16 PL_interp_size_5_18_0
5492 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5495 /* Done with PERLVAR macros for now ... */
5501 #endif /* MULTIPLICITY */
5503 struct tempsym; /* defined in pp_pack.c */
5510 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5511 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5514 # include "malloc_ctl.h"
5518 * This provides a layer of functions and macros to ensure extensions will
5519 * get to use the same RTL functions as the core.
5522 # include "win32iop.h"
5528 /* this has structure inits, so it cannot be included before here */
5531 /* The following must follow proto.h as #defines mess up syntax */
5533 #if !defined(PERL_FOR_X2P)
5534 # include "embedvar.h"
5537 /* Now include all the 'global' variables
5538 * If we don't have threads or multiple interpreters
5539 * these include variables that would have been their struct-s
5542 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5543 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5544 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5545 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5547 #if !defined(MULTIPLICITY)
5549 # include "intrpvar.h"
5551 # define PL_sv_yes (PL_sv_immortals[0])
5552 # define PL_sv_undef (PL_sv_immortals[1])
5553 # define PL_sv_no (PL_sv_immortals[2])
5554 # define PL_sv_zero (PL_sv_immortals[3])
5558 /* All core uses now exterminated. Ensure no zombies can return: */
5562 /* Now all the config stuff is setup we can include embed.h
5563 In particular, need the relevant *ish file included already, as it may
5564 define HAVE_INTERP_INTERN */
5569 # include "perlvars.h"
5578 #if !defined(MULTIPLICITY)
5579 /* Set up PERLVAR macros for populating structs */
5580 # define PERLVAR(prefix,var,type) type prefix##var;
5581 /* 'var' is an array of length 'n' */
5582 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5583 /* initialize 'var' to init' */
5584 # define PERLVARI(prefix,var,type,init) type prefix##var;
5585 /* like PERLVARI, but make 'var' a const */
5586 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5588 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5589 struct PerlHandShakeInterpreter {
5590 # include "intrpvar.h"
5600 /* dummy variables that hold pointers to both runops functions, thus forcing
5601 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5603 EXTCONST runops_proc_t PL_runops_std
5604 INIT(Perl_runops_standard);
5605 EXTCONST runops_proc_t PL_runops_dbg
5606 INIT(Perl_runops_debug);
5608 #define EXT_MGVTBL EXTCONST MGVTBL
5610 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5611 #define PERL_MAGIC_VALUE_MAGIC 0x80
5612 #define PERL_MAGIC_VTABLE_MASK 0x3F
5614 /* can this type of magic be attached to a readonly SV? */
5615 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5616 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5618 /* Is this type of magic container magic (%ENV, $1 etc),
5619 * or value magic (pos, taint etc)?
5621 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5622 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5624 #include "mg_vtable.h"
5627 EXTCONST U8 PL_magic_data[256] =
5629 # include "umg_data.h"
5631 # include "mg_data.h"
5635 EXTCONST U8 PL_magic_data[256];
5639 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5641 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5643 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5645 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5647 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5649 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5651 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5655 EXTCONST bool PL_valid_types_IVX[];
5656 EXTCONST bool PL_valid_types_NVX[];
5657 EXTCONST bool PL_valid_types_PVX[];
5658 EXTCONST bool PL_valid_types_RV[];
5659 EXTCONST bool PL_valid_types_IV_set[];
5660 EXTCONST bool PL_valid_types_NV_set[];
5664 /* In C99 we could use designated (named field) union initializers.
5665 * In C89 we need to initialize the member declared first.
5666 * In C++ we need extern C initializers.
5668 * With the U8_NV version you will want to have inner braces,
5669 * while with the NV_U8 use just the NV. */
5671 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5672 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5674 /* if these never got defined, they need defaults */
5675 #ifndef PERL_SET_CONTEXT
5676 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5679 #ifndef PERL_GET_CONTEXT
5680 # define PERL_GET_CONTEXT PERL_GET_INTERP
5683 #ifndef PERL_GET_THX
5684 # define PERL_GET_THX ((void*)NULL)
5687 #ifndef PERL_SET_THX
5688 # define PERL_SET_THX(t) NOOP
5693 /* The tables below are adapted from
5694 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5697 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5699 Permission is hereby granted, free of charge, to any person obtaining a copy of
5700 this software and associated documentation files (the "Software"), to deal in
5701 the Software without restriction, including without limitation the rights to
5702 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5703 of the Software, and to permit persons to whom the Software is furnished to do
5704 so, subject to the following conditions:
5706 The above copyright notice and this permission notice shall be included in all
5707 copies or substantial portions of the Software.
5709 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5710 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5711 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5712 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5713 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5714 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5720 # if 0 /* This is the original table given in
5721 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5722 static U8 utf8d_C9[] = {
5723 /* The first part of the table maps bytes to character classes that
5724 * to reduce the size of the transition table and create bitmasks. */
5725 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*/
5726 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*/
5727 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*/
5728 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*/
5729 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*/
5730 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*/
5731 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*/
5732 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*/
5734 /* The second part is a transition table that maps a combination
5735 * of a state of the automaton and a character class to a state. */
5736 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5737 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5738 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5739 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5740 12,36,12,12,12,12,12,12,12,12,12,12
5745 /* This is a version of the above table customized for Perl that doesn't
5746 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5747 * machines). The classes have been renumbered so that the patterns are more
5748 * evident in the table. The class numbers for start bytes are constrained so
5749 * that they can be used as a shift count for masking off the leading one bits.
5750 * It would make the code simpler if start byte FF could also be handled, but
5751 * doing so would mean adding nodes for each of continuation bytes 6-12
5752 * remaining, and two more nodes for overlong detection (a total of 9), and
5753 * there is room only for 4 more nodes unless we make the array U16 instead of
5758 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5760 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5761 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5762 * 88-8F 10 Not legal immediately after start bytes E0 F0
5763 * 90-9F 11 Not legal immediately after start byte E0
5775 * FE 17 (or 1 on 32-bit machines, since it overflows)
5779 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5780 /* The first part of the table maps bytes to character classes to reduce
5781 * the size of the transition table and create bitmasks. */
5782 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5783 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5784 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5785 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5786 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5787 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5788 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5789 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5790 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5791 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5792 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5793 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5794 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5795 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5796 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5797 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5805 /* The second part is a transition table that maps a combination
5806 * of a state of the automaton and a character class to a new state, called a
5807 * node. The nodes are:
5808 * N0 The initial state, and final accepting one.
5809 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5810 * immediately when the start byte indicates a two-byte sequence
5811 * N2 Any two continuation bytes left.
5812 * N3 Any three continuation bytes left.
5813 * N4 Any four continuation bytes left.
5814 * N5 Any five continuation bytes left.
5815 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5816 * the other continuations transition to N1
5817 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5818 * the other continuations transition to N2
5819 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5820 * the other continuations transition to N3
5821 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5822 * the other continuations transition to N4
5823 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5824 * the other continuations transition to N5
5825 * 1 Reject. All transitions not mentioned above (except the single
5826 * byte ones (as they are always legal) are to this state.
5829 # define NUM_CLASSES 18
5831 # define N1 ((N0) + NUM_CLASSES)
5832 # define N2 ((N1) + NUM_CLASSES)
5833 # define N3 ((N2) + NUM_CLASSES)
5834 # define N4 ((N3) + NUM_CLASSES)
5835 # define N5 ((N4) + NUM_CLASSES)
5836 # define N6 ((N5) + NUM_CLASSES)
5837 # define N7 ((N6) + NUM_CLASSES)
5838 # define N8 ((N7) + NUM_CLASSES)
5839 # define N9 ((N8) + NUM_CLASSES)
5840 # define N10 ((N9) + NUM_CLASSES)
5842 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5843 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5844 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5845 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5846 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5847 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5848 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5850 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5851 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5852 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5853 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5854 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5857 /* And below is a version of the above table that accepts only strict UTF-8.
5858 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5859 * passes this dfa, it will be for a well-formed, non-problematic code point
5860 * that can be returned immediately.
5862 * The "Implementation details" portion of
5863 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5864 * the first portion of the table maps each possible byte into a character
5865 * class. And that the classes for those bytes which are start bytes have been
5866 * carefully chosen so they serve as well to be used as a shift value to mask
5867 * off the leading 1 bits of the start byte. Unfortunately the addition of
5868 * being able to distinguish non-characters makes this not fully work. This is
5869 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5871 * 1) ED because it could be a surrogate
5872 * 2) EF because it could be a non-character
5873 * 3) the rest, which can never evaluate to a problematic code point.
5875 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5876 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5877 * But that only allows two categories, and we need three. khw made the
5878 * decision to therefore treat the ED start byte as an error, so that the dfa
5879 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5880 * distinguish EF vs the rest. Then special code is used to deal with ED,
5881 * that's executed only when the dfa drops out. The code points started by ED
5882 * are half surrogates, and half hangul syllables. This means that 2048 of
5883 * the hangul syllables (about 18%) take longer than all other non-problematic
5884 * code points to handle.
5886 * The changes to handle non-characters requires the addition of states and
5887 * classes to the dfa. (See the section on "Mapping bytes to character
5888 * classes" in the linked-to document for further explanation of the original
5912 * F1-F3 6 (6 bits can be stripped)
5913 * F4 5 (only 5 can be stripped)
5917 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5918 /* The first part of the table maps bytes to character classes to reduce
5919 * the size of the transition table and create bitmasks. */
5920 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5921 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5922 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5923 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5924 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5925 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5926 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5927 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5928 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5929 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5930 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5931 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5932 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5933 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5934 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5935 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5937 /* The second part is a transition table that maps a combination
5938 * of a state of the automaton and a character class to a new state, called a
5939 * node. The nodes are:
5940 * N0 The initial state, and final accepting one.
5941 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5942 * immediately when the start byte indicates a two-byte sequence
5943 * N2 Any two continuation bytes left.
5944 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5945 * the other continuations transition to state N1
5946 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5947 * the other continuations transitions to N1
5948 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5949 * [9AB]F transition to N10; the other continuations to N2.
5950 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5951 * to N10; the other continuations to N2.
5952 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5953 * (non-unicode); 8F transitions to N10; the other continuations to N2
5954 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5955 * (non-characters); the other continuations transition to N0.
5956 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
5957 * (non-characters); the other continuations transition to N0.
5958 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
5959 * Continuation byte BF transitions to N11; the other continuations to
5961 * N11 Initial sequence is the two bytes given in N10 followed by BF.
5962 * Continuation bytes BE and BF are illegal (non-characters); the other
5963 * continuations transition to N0.
5964 * 1 Reject. All transitions not mentioned above (except the single
5965 * byte ones (as they are always legal) are to this state.
5979 # define NUM_CLASSES 19
5981 # define N1 ((N0) + NUM_CLASSES)
5982 # define N2 ((N1) + NUM_CLASSES)
5983 # define N3 ((N2) + NUM_CLASSES)
5984 # define N4 ((N3) + NUM_CLASSES)
5985 # define N5 ((N4) + NUM_CLASSES)
5986 # define N6 ((N5) + NUM_CLASSES)
5987 # define N7 ((N6) + NUM_CLASSES)
5988 # define N8 ((N7) + NUM_CLASSES)
5989 # define N9 ((N8) + NUM_CLASSES)
5990 # define N10 ((N9) + NUM_CLASSES)
5991 # define N11 ((N10) + NUM_CLASSES)
5993 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
5994 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
5995 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5996 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
5998 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
5999 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6000 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6001 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6002 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6003 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6004 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6005 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6006 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6009 /* And below is yet another version of the above tables that accepts only UTF-8
6010 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6011 * it allows non-characters. This is isomorphic to the original table
6012 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6026 * F1-F3 6 (6 bits can be stripped)
6027 * F4 5 (only 5 can be stripped)
6031 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6032 /* The first part of the table maps bytes to character classes to reduce
6033 * the size of the transition table and create bitmasks. */
6034 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6035 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6036 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6037 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6038 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6039 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6040 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6041 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6042 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6043 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6044 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6045 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6046 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6047 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6048 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6049 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6051 /* The second part is a transition table that maps a combination
6052 * of a state of the automaton and a character class to a new state, called a
6053 * node. The nodes are:
6054 * N0 The initial state, and final accepting one.
6055 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6056 * immediately when the start byte indicates a two-byte sequence
6057 * N2 Any two continuation bytes left.
6058 * N3 Any three continuation bytes left.
6059 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6060 * the other continuations transition to state N1
6061 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6062 * so are illegal. The other continuations transition to state N1.
6063 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6064 * the other continuations transition to N2
6065 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6066 * (non-unicode); the other continuations transition to N2
6067 * 1 Reject. All transitions not mentioned above (except the single
6068 * byte ones (as they are always legal) are to this state.
6080 # define NUM_CLASSES 12
6082 # define N1 ((N0) + NUM_CLASSES)
6083 # define N2 ((N1) + NUM_CLASSES)
6084 # define N3 ((N2) + NUM_CLASSES)
6085 # define N4 ((N3) + NUM_CLASSES)
6086 # define N5 ((N4) + NUM_CLASSES)
6087 # define N6 ((N5) + NUM_CLASSES)
6088 # define N7 ((N6) + NUM_CLASSES)
6090 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6091 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6092 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6093 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6094 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6096 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6097 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6098 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6099 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6102 # else /* End of is DOINIT */
6104 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6105 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6106 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6109 #endif /* end of isn't EBCDIC */
6111 #ifndef PERL_NO_INLINE_FUNCTIONS
6112 /* Static inline funcs that depend on includes and declarations above.
6113 Some of these reference functions in the perl object files, and some
6114 compilers aren't smart enough to eliminate unused static inline
6115 functions, so including this file in source code can cause link errors
6116 even if the source code uses none of the functions. Hence including these
6117 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
6118 (obviously) result in unworkable XS code, but allows simple probing code
6119 to continue to work, because it permits tests to include the perl headers
6120 for definitions without creating a link dependency on the perl library
6121 (which may not exist yet).
6124 # include "inline.h"
6127 #include "overload.h"
6136 CV* table[NofAMmeth];
6138 struct am_table_short {
6144 typedef struct am_table AMT;
6145 typedef struct am_table_short AMTS;
6147 #define AMGfallNEVER 1
6149 #define AMGfallYES 3
6151 #define AMTf_AMAGIC 1
6152 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6153 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6154 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6156 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6159 * some compilers like to redefine cos et alia as faster
6160 * (and less accurate?) versions called F_cos et cetera (Quidquid
6161 * latine dictum sit, altum viditur.) This trick collides with
6162 * the Perl overloading (amg). The following #defines fool both.
6167 # define F_atan2_amg atan2_amg
6170 # define F_cos_amg cos_amg
6173 # define F_exp_amg exp_amg
6176 # define F_log_amg log_amg
6179 # define F_pow_amg pow_amg
6182 # define F_sin_amg sin_amg
6185 # define F_sqrt_amg sqrt_amg
6187 #endif /* _FASTMATH */
6189 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6190 PERLDBf_NOOPT | PERLDBf_INTER | \
6191 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6192 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6194 /* No _NONAME, _GOTO */
6195 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6196 #define PERLDBf_LINE 0x02 /* Keep line # */
6197 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6198 #define PERLDBf_INTER 0x08 /* Preserve more data for
6199 later inspections */
6200 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6201 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6202 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6203 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6204 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6205 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6206 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6207 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6208 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6210 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6211 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6212 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6213 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6214 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6215 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6216 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6217 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6218 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6219 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6220 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6221 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6222 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6224 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6227 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6228 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6229 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6230 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6231 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6232 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6233 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6234 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6236 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6237 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6238 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6239 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6240 # define USER_PROP_MUTEX_INIT NOOP
6241 # define USER_PROP_MUTEX_LOCK NOOP
6242 # define USER_PROP_MUTEX_UNLOCK NOOP
6243 # define USER_PROP_MUTEX_TERM NOOP
6246 #ifdef USE_LOCALE /* These locale things are all subject to change */
6248 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6250 # define IN_LOCALE_RUNTIME (PL_curcop \
6251 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6253 /* Returns TRUE if either form of the locale pragma is in effect */
6254 # define IN_SOME_LOCALE_FORM_RUNTIME \
6255 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6257 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6258 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6259 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6262 =for apidoc_section Locales
6264 =for apidoc Amn|bool|IN_LOCALE
6266 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6267 locale>>) is in effect.
6269 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6271 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6272 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6274 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6276 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6277 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6282 # define IN_LOCALE \
6283 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6284 # define IN_SOME_LOCALE_FORM \
6285 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6286 : IN_SOME_LOCALE_FORM_RUNTIME)
6288 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6289 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6291 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6292 # define IN_LC_PARTIAL_RUNTIME \
6293 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6295 # define IN_LC_COMPILETIME(category) \
6296 ( IN_LC_ALL_COMPILETIME \
6297 || ( IN_LC_PARTIAL_COMPILETIME \
6298 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6299 # define IN_LC_RUNTIME(category) \
6300 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6301 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6302 # define IN_LC(category) \
6303 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6305 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6307 /* This internal macro should be called from places that operate under
6308 * locale rules. If there is a problem with the current locale that
6309 * hasn't been raised yet, it will output a warning this time. Because
6310 * this will so rarely be true, there is no point to optimize for time;
6311 * instead it makes sense to minimize space used and do all the work in
6312 * the rarely called function */
6313 # ifdef USE_LOCALE_CTYPE
6314 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6316 if (UNLIKELY(PL_warn_locale)) { \
6317 Perl__warn_problematic_locale(); \
6321 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6325 /* These two internal macros are called when a warning should be raised,
6326 * and will do so if enabled. The first takes a single code point
6327 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6328 * string, and an end position which it won't try to read past */
6329 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6331 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6332 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6333 "Wide character (U+%" UVXf ") in %s",\
6334 (UV) cp, OP_DESC(PL_op)); \
6338 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6339 STMT_START { /* Check if to warn before doing the conversion work */\
6340 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6341 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6342 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6343 "Wide character (U+%" UVXf ") in %s", \
6345 ? UNICODE_REPLACEMENT \
6351 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6352 #else /* No locale usage */
6353 # define IN_LOCALE_RUNTIME 0
6354 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6355 # define IN_LOCALE_COMPILETIME 0
6356 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6357 # define IN_LOCALE 0
6358 # define IN_SOME_LOCALE_FORM 0
6359 # define IN_LC_ALL_COMPILETIME 0
6360 # define IN_LC_ALL_RUNTIME 0
6361 # define IN_LC_PARTIAL_COMPILETIME 0
6362 # define IN_LC_PARTIAL_RUNTIME 0
6363 # define IN_LC_COMPILETIME(category) 0
6364 # define IN_LC_RUNTIME(category) 0
6365 # define IN_LC(category) 0
6366 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6367 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6368 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6372 /* Locale/thread synchronization macros. These aren't needed if using
6373 * thread-safe locale operations, except if something is broken */
6374 #if defined(USE_LOCALE) \
6375 && defined(USE_ITHREADS) \
6376 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6378 /* We have a locale object holding the 'C' locale for Posix 2008 */
6379 # ifndef USE_POSIX_2008_LOCALE
6380 # define _LOCALE_TERM_POSIX_2008 NOOP
6382 # define _LOCALE_TERM_POSIX_2008 \
6384 if (PL_C_locale_obj) { \
6385 /* Make sure we aren't using the locale \
6386 * space we are about to free */ \
6387 uselocale(LC_GLOBAL_LOCALE); \
6388 freelocale(PL_C_locale_obj); \
6389 PL_C_locale_obj = (locale_t) NULL; \
6394 /* This is used as a generic lock for locale operations. For example this is
6395 * used when calling nl_langinfo() so that another thread won't zap the
6396 * contents of its buffer before it gets saved; and it's called when changing
6397 * the locale of LC_MESSAGES. On some systems the latter can cause the
6398 * nl_langinfo buffer to be zapped under a race condition.
6400 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6401 * should be contained entirely within the locked portion of LC_NUMERIC. This
6402 * mutex should be used only in very short sections of code, while
6403 * LC_NUMERIC_LOCK may span more operations. By always following this
6404 * convention, deadlock should be impossible. But if necessary, the two
6405 * mutexes could be combined.
6407 * Actually, the two macros just below with the '_V' suffixes are used in just
6408 * a few places where there is a broken localeconv(), but otherwise things are
6409 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6410 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6411 # define LOCALE_LOCK_V \
6413 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6414 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6415 MUTEX_LOCK(&PL_locale_mutex); \
6417 # define LOCALE_UNLOCK_V \
6419 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6420 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6421 MUTEX_UNLOCK(&PL_locale_mutex); \
6424 /* On windows, we just need the mutex for LOCALE_LOCK */
6425 # ifdef TS_W32_BROKEN_LOCALECONV
6426 # define LOCALE_LOCK NOOP
6427 # define LOCALE_UNLOCK NOOP
6428 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6429 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6430 # define LC_NUMERIC_LOCK(cond)
6431 # define LC_NUMERIC_UNLOCK
6433 # define LOCALE_LOCK LOCALE_LOCK_V
6434 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6436 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6438 # define LOCALE_INIT STMT_START { \
6439 MUTEX_INIT(&PL_locale_mutex); \
6440 MUTEX_INIT(&PL_lc_numeric_mutex); \
6443 # define LOCALE_TERM STMT_START { \
6444 MUTEX_DESTROY(&PL_locale_mutex); \
6445 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6446 _LOCALE_TERM_POSIX_2008; \
6449 /* This mutex is used to create critical sections where we want the
6450 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6451 * the underlying locale, so that other threads interrupting this one don't
6452 * change it to the wrong state before we've had a chance to complete our
6453 * operation. It can stay locked over an entire printf operation, for
6454 * example. And so is made distinct from the LOCALE_LOCK mutex.
6456 * This simulates kind of a general semaphore. The current thread will
6457 * lock the mutex if the per-thread variable is zero, and then increments
6458 * that variable. Each corresponding UNLOCK decrements the variable until
6459 * it is 0, at which point it actually unlocks the mutex. Since the
6460 * variable is per-thread, there is no race with other threads.
6462 * The single argument is a condition to test for, and if true, to panic,
6463 * as this would be an attempt to complement the LC_NUMERIC state, and
6464 * we're not supposed to because it's locked.
6466 * Clang improperly gives warnings for this, if not silenced:
6467 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6469 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6470 CLANG_DIAG_IGNORE(-Wthread-safety) \
6472 if (PL_lc_numeric_mutex_depth <= 0) { \
6473 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6474 PL_lc_numeric_mutex_depth = 1; \
6475 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6476 "%s: %d: locking lc_numeric; depth=1\n", \
6477 __FILE__, __LINE__)); \
6480 PL_lc_numeric_mutex_depth++; \
6481 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6482 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6483 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6484 if (cond_to_panic_if_already_locked) { \
6485 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6486 " LC_NUMERIC incompatibly", \
6487 __FILE__, __LINE__); \
6492 # define LC_NUMERIC_UNLOCK \
6494 if (PL_lc_numeric_mutex_depth <= 1) { \
6495 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6496 PL_lc_numeric_mutex_depth = 0; \
6497 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6498 "%s: %d: unlocking lc_numeric; depth=0\n", \
6499 __FILE__, __LINE__)); \
6502 PL_lc_numeric_mutex_depth--; \
6503 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6504 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6505 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6510 # endif /* End of needs locking LC_NUMERIC */
6511 #else /* Below is no locale sync needed */
6512 # define LOCALE_INIT
6513 # define LOCALE_LOCK
6514 # define LOCALE_LOCK_V
6515 # define LOCALE_UNLOCK
6516 # define LOCALE_UNLOCK_V
6517 # define LC_NUMERIC_LOCK(cond)
6518 # define LC_NUMERIC_UNLOCK
6519 # define LOCALE_TERM
6522 #ifdef USE_LOCALE_NUMERIC
6524 /* These macros are for toggling between the underlying locale (UNDERLYING or
6525 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6526 * locale if the underlying locale is indistinguishable from it in the numeric
6527 * operations used by Perl, namely the decimal point, and even the thousands
6530 =for apidoc_section Locales
6532 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6534 This macro should be used as a statement. It declares a private variable
6535 (whose name begins with an underscore) that is needed by the other macros in
6536 this section. Failing to include this correctly should lead to a syntax error.
6537 For compatibility with C89 C compilers it should be placed in a block before
6538 any executable statements.
6540 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6542 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
6543 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6544 underlying locale. (The perl interpreter could be wrong about what the
6545 underlying locale actually is if some C or XS code has called the C library
6546 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6547 this macro will update perl's records.)
6549 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6550 declare at compile time a private variable used by this macro. This macro
6551 should be called as a single statement, not an expression, but with an empty
6552 argument list, like this:
6555 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6557 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6559 RESTORE_LC_NUMERIC();
6563 The private variable is used to save the current locale state, so
6564 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6566 On threaded perls not operating with thread-safe functionality, this macro uses
6567 a mutex to force a critical section. Therefore the matching RESTORE should be
6568 close by, and guaranteed to be called.
6570 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6572 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6573 This locale category is generally kept set to a locale where the decimal radix
6574 character is a dot, and the separator between groups of digits is empty. This
6575 is because most XS code that reads floating point numbers is expecting them to
6578 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6579 aware of locale if the call to the XS or C code from the Perl program is
6580 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6581 instead from outside such scope.
6583 This macro is the start of wrapping the C or XS code; the wrap ending is done
6584 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6585 the state can be changed that will adversely affect other XS code.
6587 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6588 declare at compile time a private variable used by this macro. This macro
6589 should be called as a single statement, not an expression, but with an empty
6590 argument list, like this:
6593 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6595 STORE_LC_NUMERIC_SET_TO_NEEDED();
6597 RESTORE_LC_NUMERIC();
6601 On threaded perls not operating with thread-safe functionality, this macro uses
6602 a mutex to force a critical section. Therefore the matching RESTORE should be
6603 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6604 for a more contained way to ensure that.
6606 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6608 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6609 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6610 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6611 cannot have changed since the precalculation.
6613 =for apidoc Am|void|RESTORE_LC_NUMERIC
6615 This is used in conjunction with one of the macros
6616 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6617 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6618 C<LC_NUMERIC> state.
6620 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6621 declare at compile time a private variable used by this macro and the two
6622 C<STORE> ones. This macro should be called as a single statement, not an
6623 expression, but with an empty argument list, like this:
6626 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6628 RESTORE_LC_NUMERIC();
6632 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6634 This macro invokes the supplied statement or block within the context
6635 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6638 WITH_LC_NUMERIC_SET_TO_NEEDED(
6639 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6645 #ifdef USE_LOCALE_NUMERIC
6646 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6647 STORE_LC_NUMERIC_SET_TO_NEEDED();
6649 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6650 #ifdef USE_LOCALE_NUMERIC
6651 RESTORE_LC_NUMERIC();
6655 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6657 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6658 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6659 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6660 cannot have changed since the precalculation.
6666 /* If the underlying numeric locale has a non-dot decimal point or has a
6667 * non-empty floating point thousands separator, the current locale is instead
6668 * generally kept in the C locale instead of that underlying locale. The
6669 * current status is known by looking at two words. One is non-zero if the
6670 * current numeric locale is the standard C/POSIX one or is indistinguishable
6671 * from C. The other is non-zero if the current locale is the underlying
6672 * locale. Both can be non-zero if, as often happens, the underlying locale is
6673 * C or indistinguishable from it.
6675 * khw believes the reason for the variables instead of the bits in a single
6676 * word is to avoid having to have masking instructions. */
6678 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6680 /* We can lock the category to stay in the C locale, making requests to the
6681 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6683 # define _NOT_IN_NUMERIC_UNDERLYING \
6684 (! PL_numeric_underlying && PL_numeric_standard < 2)
6686 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6687 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6689 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6691 bool _in_lc_numeric = (in); \
6693 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6694 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6695 if (_in_lc_numeric) { \
6696 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6697 Perl_set_numeric_underlying(aTHX); \
6698 _restore_LC_NUMERIC_function \
6699 = &Perl_set_numeric_standard; \
6703 if (_NOT_IN_NUMERIC_STANDARD) { \
6704 Perl_set_numeric_standard(aTHX); \
6705 _restore_LC_NUMERIC_function \
6706 = &Perl_set_numeric_underlying; \
6711 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6712 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6714 # define RESTORE_LC_NUMERIC() \
6716 if (_restore_LC_NUMERIC_function) { \
6717 _restore_LC_NUMERIC_function(aTHX); \
6719 LC_NUMERIC_UNLOCK; \
6722 /* The next two macros set unconditionally. These should be rarely used, and
6723 * only after being sure that this is what is needed */
6724 # define SET_NUMERIC_STANDARD() \
6726 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6727 "%s: %d: lc_numeric standard=%d\n", \
6728 __FILE__, __LINE__, PL_numeric_standard)); \
6729 Perl_set_numeric_standard(aTHX); \
6730 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6731 "%s: %d: lc_numeric standard=%d\n", \
6732 __FILE__, __LINE__, PL_numeric_standard)); \
6735 # define SET_NUMERIC_UNDERLYING() \
6737 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6738 Perl_set_numeric_underlying(aTHX); \
6742 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6743 * the RESTORE_foo ones called to switch back, but only if need be */
6744 # define STORE_LC_NUMERIC_SET_STANDARD() \
6746 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6747 if (_NOT_IN_NUMERIC_STANDARD) { \
6748 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6749 Perl_set_numeric_standard(aTHX); \
6753 /* Rarely, we want to change to the underlying locale even outside of 'use
6754 * locale'. This is principally in the POSIX:: functions */
6755 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6757 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6758 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6759 Perl_set_numeric_underlying(aTHX); \
6760 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6764 /* Lock/unlock to the C locale until unlock is called. This needs to be
6765 * recursively callable. [perl #128207] */
6766 # define LOCK_LC_NUMERIC_STANDARD() \
6768 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6769 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6770 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6771 __ASSERT_(PL_numeric_standard) \
6772 PL_numeric_standard++; \
6775 # define UNLOCK_LC_NUMERIC_STANDARD() \
6777 if (PL_numeric_standard > 1) { \
6778 PL_numeric_standard--; \
6783 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6784 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6785 __FILE__, __LINE__, PL_numeric_standard)); \
6788 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6790 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6791 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6793 RESTORE_LC_NUMERIC(); \
6796 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6797 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6799 #else /* !USE_LOCALE_NUMERIC */
6801 # define SET_NUMERIC_STANDARD()
6802 # define SET_NUMERIC_UNDERLYING()
6803 # define IS_NUMERIC_RADIX(a, b) (0)
6804 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
6805 # define STORE_LC_NUMERIC_SET_STANDARD()
6806 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6807 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6808 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6809 # define RESTORE_LC_NUMERIC()
6810 # define LOCK_LC_NUMERIC_STANDARD()
6811 # define UNLOCK_LC_NUMERIC_STANDARD()
6812 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6813 STMT_START { block; } STMT_END
6814 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6815 STMT_START { block; } STMT_END
6817 #endif /* !USE_LOCALE_NUMERIC */
6819 #define Atof my_atof
6823 =for apidoc_section Numeric Functions
6825 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6827 This is a synonym for L</my_strtod>.
6829 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6831 Platform and configuration independent C<strtol>. This expands to the
6832 appropriate C<strotol>-like function based on the platform and F<Configure>
6833 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6836 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6838 Platform and configuration independent C<strtoul>. This expands to the
6839 appropriate C<strotoul>-like function based on the platform and F<Configure>
6840 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6847 #define Strtod my_strtod
6849 #if defined(HAS_STRTOD) \
6850 || defined(USE_QUADMATH) \
6851 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6852 && defined(USE_LONG_DOUBLE))
6853 # define Perl_strtod Strtod
6856 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6857 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6859 # define strtoll __strtoll /* secret handshake */
6861 # if defined(WIN64) && defined(_MSC_VER)
6862 # define strtoll _strtoi64 /* secret handshake */
6864 # if !defined(Strtol) && defined(HAS_STRTOLL)
6865 # define Strtol strtoll
6867 # if !defined(Strtol) && defined(HAS_STRTOQ)
6868 # define Strtol strtoq
6870 /* is there atoq() anywhere? */
6872 #if !defined(Strtol) && defined(HAS_STRTOL)
6873 # define Strtol strtol
6876 /* It would be more fashionable to use Strtol() to define atol()
6877 * (as is done for Atoul(), see below) but for backward compatibility
6878 * we just assume atol(). */
6879 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6880 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6882 # define atoll _atoi64 /* secret handshake */
6890 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6891 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6893 # define strtoull __strtoull /* secret handshake */
6895 # if defined(WIN64) && defined(_MSC_VER)
6896 # define strtoull _strtoui64 /* secret handshake */
6898 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6899 # define Strtoul strtoull
6901 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6902 # define Strtoul strtouq
6904 /* is there atouq() anywhere? */
6906 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6907 # define Strtoul strtoul
6909 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6910 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6913 # define Atoul(s) Strtoul(s, NULL, 10)
6916 #define grok_bin(s,lp,fp,rp) \
6917 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6918 #define grok_oct(s,lp,fp,rp) \
6919 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6920 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6921 #define grok_hex(s,lp,fp,rp) \
6922 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6924 #ifndef PERL_SCRIPT_MODE
6925 #define PERL_SCRIPT_MODE "r"
6928 /* not used. Kept as a NOOP for backcompat */
6929 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6932 * Some nonpreemptive operating systems find it convenient to
6933 * check for asynchronous conditions after each op execution.
6934 * Keep this check simple, or it may slow down execution
6939 # ifndef PERL_ASYNC_CHECK
6940 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6944 #ifndef PERL_ASYNC_CHECK
6945 # define PERL_ASYNC_CHECK() NOOP
6949 * On some operating systems, a memory allocation may succeed,
6950 * but put the process too close to the system's comfort limit.
6951 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6954 #ifndef PERL_ALLOC_CHECK
6955 #define PERL_ALLOC_CHECK(p) NOOP
6959 # include <sys/ipc.h>
6960 # include <sys/sem.h>
6961 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6964 struct semid_ds *buf;
6965 unsigned short *array;
6968 # ifdef USE_SEMCTL_SEMUN
6969 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6970 union gccbug_semun {
6972 struct semid_ds *buf;
6973 unsigned short *array;
6976 # define semun gccbug_semun
6978 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6979 # elif defined(USE_SEMCTL_SEMID_DS)
6980 # ifdef EXTRA_F_IN_SEMUN_BUF
6981 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6983 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6989 * Boilerplate macros for initializing and accessing interpreter-local
6990 * data from C. All statics in extensions should be reworked to use
6991 * this, if you want to make the extension thread-safe. See
6992 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6993 * and perlxs.pod for more.
6995 * Code that uses these macros is responsible for the following:
6996 * 1. #define MY_CXT_KEY to a unique string, e.g.
6997 * "DynaLoader::_guts" XS_VERSION
6998 * XXX in the current implementation, this string is ignored.
6999 * 2. Declare a typedef named my_cxt_t that is a structure that contains
7000 * all the data that needs to be interpreter-local.
7001 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
7002 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
7003 * (typically put in the BOOT: section).
7004 * 5. Use the members of the my_cxt_t structure everywhere as
7006 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
7010 #if defined(PERL_IMPLICIT_CONTEXT)
7012 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
7013 * right after the definition (i.e. at file scope). The non-threads
7014 * case below uses it to declare the data as static. */
7015 # define START_MY_CXT static int my_cxt_index = -1;
7016 # define MY_CXT_INDEX my_cxt_index
7017 # define MY_CXT_INIT_ARG &my_cxt_index
7019 /* Creates and zeroes the per-interpreter data.
7020 * (We allocate my_cxtp in a Perl SV so that it will be released when
7021 * the interpreter goes away.) */
7022 # define MY_CXT_INIT \
7023 my_cxt_t *my_cxtp = \
7024 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7025 PERL_UNUSED_VAR(my_cxtp)
7026 # define MY_CXT_INIT_INTERP(my_perl) \
7027 my_cxt_t *my_cxtp = \
7028 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7029 PERL_UNUSED_VAR(my_cxtp)
7031 /* This declaration should be used within all functions that use the
7032 * interpreter-local data. */
7034 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7035 # define dMY_CXT_INTERP(my_perl) \
7036 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7038 /* Clones the per-interpreter data. */
7039 # define MY_CXT_CLONE \
7040 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7041 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7042 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7043 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7047 /* This macro must be used to access members of the my_cxt_t structure.
7048 * e.g. MY_CXT.some_data */
7049 # define MY_CXT (*my_cxtp)
7051 /* Judicious use of these macros can reduce the number of times dMY_CXT
7052 * is used. Use is similar to pTHX, aTHX etc. */
7053 # define pMY_CXT my_cxt_t *my_cxtp
7054 # define pMY_CXT_ pMY_CXT,
7055 # define _pMY_CXT ,pMY_CXT
7056 # define aMY_CXT my_cxtp
7057 # define aMY_CXT_ aMY_CXT,
7058 # define _aMY_CXT ,aMY_CXT
7060 #else /* PERL_IMPLICIT_CONTEXT */
7062 # define START_MY_CXT static my_cxt_t my_cxt;
7063 # define dMY_CXT_SV dNOOP
7064 # define dMY_CXT dNOOP
7065 # define dMY_CXT_INTERP(my_perl) dNOOP
7066 # define MY_CXT_INIT NOOP
7067 # define MY_CXT_CLONE NOOP
7068 # define MY_CXT my_cxt
7070 # define pMY_CXT void
7077 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
7088 # undef FD_CLOEXEC /* a lie in AmigaOS */
7092 # include <sys/file.h>
7095 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7096 EXTERN_C int flock(int fd, int op);
7100 /* Assume UNIX defaults */
7101 # define O_RDONLY 0000
7102 # define O_WRONLY 0001
7103 # define O_RDWR 0002
7104 # define O_CREAT 0100
7115 #if O_TEXT != O_BINARY
7116 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7117 * that is, you are somehow DOSish. */
7118 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7119 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7120 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7121 /* VOS has O_TEXT != O_BINARY, and they have effect,
7122 * but VOS always uses LF, never CRLF. */
7123 /* If you have O_TEXT different from your O_BINARY but you still are
7124 * not a CRLF shop. */
7125 # undef PERLIO_USING_CRLF
7127 /* If you really are DOSish. */
7128 # define PERLIO_USING_CRLF 1
7133 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7136 #ifndef EXEC_ARGV_CAST
7137 #define EXEC_ARGV_CAST(x) (char **)x
7140 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7141 int). value returned in pointed-
7143 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7144 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7145 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7146 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7147 #define IS_NUMBER_NAN 0x20 /* this is not */
7148 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7151 =for apidoc_section Numeric Functions
7153 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7155 A synonym for L</grok_numeric_radix>
7159 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7161 /* Number scan flags. All are used for input, the ones used for output are so
7163 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7164 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7166 /* grok_??? input: ignored; output: found overflow */
7167 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7169 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7170 * this isn't set on output if one is found. Instead, see
7171 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7172 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7174 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7175 and set IS_NUMBER_TRAILING */
7177 /* These are considered experimental, so not exposed publicly */
7178 #if defined(PERL_CORE) || defined(PERL_EXT)
7179 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7180 * output: found such a number */
7181 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7183 /* If this is set on input, and no illegal digit is found, it will be cleared
7184 * on output; otherwise unchanged */
7185 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7187 /* Don't warn on overflow; output flag still set */
7188 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7190 /* Forbid a leading underscore, which the other one doesn't */
7191 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7195 /* to let user control profiling */
7196 #ifdef PERL_GPROF_CONTROL
7197 extern void moncontrol(int);
7198 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7200 #define PERL_GPROF_MONCONTROL(x)
7203 /* ISO 6429 NEL - C1 control NExt Line */
7204 /* See https://www.unicode.org/unicode/reports/tr13/ */
7205 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7207 #ifndef PIPESOCK_MODE
7208 # define PIPESOCK_MODE
7211 #ifndef SOCKET_OPEN_MODE
7212 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7215 #ifndef PIPE_OPEN_MODE
7216 # define PIPE_OPEN_MODE PIPESOCK_MODE
7219 #define PERL_MAGIC_UTF8_CACHESIZE 2
7221 #define PERL_UNICODE_STDIN_FLAG 0x0001
7222 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7223 #define PERL_UNICODE_STDERR_FLAG 0x0004
7224 #define PERL_UNICODE_IN_FLAG 0x0008
7225 #define PERL_UNICODE_OUT_FLAG 0x0010
7226 #define PERL_UNICODE_ARGV_FLAG 0x0020
7227 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7228 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7229 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7231 #define PERL_UNICODE_STD_FLAG \
7232 (PERL_UNICODE_STDIN_FLAG | \
7233 PERL_UNICODE_STDOUT_FLAG | \
7234 PERL_UNICODE_STDERR_FLAG)
7236 #define PERL_UNICODE_INOUT_FLAG \
7237 (PERL_UNICODE_IN_FLAG | \
7238 PERL_UNICODE_OUT_FLAG)
7240 #define PERL_UNICODE_DEFAULT_FLAGS \
7241 (PERL_UNICODE_STD_FLAG | \
7242 PERL_UNICODE_INOUT_FLAG | \
7243 PERL_UNICODE_LOCALE_FLAG)
7245 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7247 #define PERL_UNICODE_STDIN 'I'
7248 #define PERL_UNICODE_STDOUT 'O'
7249 #define PERL_UNICODE_STDERR 'E'
7250 #define PERL_UNICODE_STD 'S'
7251 #define PERL_UNICODE_IN 'i'
7252 #define PERL_UNICODE_OUT 'o'
7253 #define PERL_UNICODE_INOUT 'D'
7254 #define PERL_UNICODE_ARGV 'A'
7255 #define PERL_UNICODE_LOCALE 'L'
7256 #define PERL_UNICODE_WIDESYSCALLS 'W'
7257 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7260 =for apidoc_section Signals
7261 =for apidoc Amn|U32|PERL_SIGNALS_UNSAFE_FLAG
7262 If this bit in C<PL_signals> is set, the system is uing the pre-Perl 5.8
7263 unsafe signals. See L<perlrun/PERL_SIGNALS> and L<perlipc/Deferred Signals
7268 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7271 =for apidoc_section Numeric Functions
7273 =for apidoc Am|int|PERL_ABS|int
7275 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7276 integers, but it works for any type.) Use instead of these, since the C
7277 library ones force their argument to be what it is expecting, potentially
7278 leading to disaster. But also beware that this evaluates its argument twice,
7284 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7286 #if defined(__DECC) && defined(__osf__)
7287 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7290 #define do_open(g, n, l, a, rm, rp, sf) \
7291 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7292 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7293 # define do_exec(cmd) do_exec3(cmd,0,0)
7296 # define do_aexec Perl_do_aexec
7298 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7303 =for apidoc_section Utility Functions
7305 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7307 Same as L</is_safe_syscall>.
7311 Allows one ending \0
7313 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7315 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7317 #if defined(OEMVS) || defined(__amigaos4__)
7318 #define NO_ENV_ARRAY_IN_MAIN
7321 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7322 * are here so that they are available throughout the core
7323 * NOTE that even though some are for _escape and some for _pretty
7324 * there must not be any clashes as the flags from _pretty are
7325 * passed straight through to _escape.
7328 #define PERL_PV_ESCAPE_QUOTE 0x000001
7329 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7331 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7332 #define PERL_PV_PRETTY_LTGT 0x000004
7333 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7335 #define PERL_PV_ESCAPE_UNI 0x000100
7336 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7337 #define PERL_PV_ESCAPE_NONASCII 0x000400
7338 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7340 #define PERL_PV_ESCAPE_ALL 0x001000
7341 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7342 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7343 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7344 #define PERL_PV_ESCAPE_RE 0x008000
7346 #define PERL_PV_ESCAPE_DWIM 0x010000
7349 /* used by pv_display in dump.c*/
7350 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7351 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7353 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7354 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7355 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7356 # define DOUBLE_IS_VAX_FLOAT
7358 # define DOUBLE_IS_IEEE_FORMAT
7361 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7362 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7363 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7364 # define DOUBLE_LITTLE_ENDIAN
7367 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7368 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7369 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7370 # define DOUBLE_BIG_ENDIAN
7373 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7374 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7375 # define DOUBLE_MIX_ENDIAN
7378 /* The VAX fp formats are neither consistently little-endian nor
7379 * big-endian, and neither are they really IEEE-mixed endian like
7380 * the mixed-endian ARM IEEE formats (with swapped bytes).
7381 * Ultimately, the VAX format came from the PDP-11.
7383 * The ordering of the parts in VAX floats is quite vexing.
7384 * In the below the fraction_n are the mantissa bits.
7386 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7387 * while the rightmost bit in each fraction is the least significant:
7388 * in other words, big-endian bit order within the fractions.
7390 * The fraction segments themselves would be big-endianly, except that
7391 * within 32 bit segments the less significant half comes first, the more
7392 * significant after, except that in the format H (used for long doubles)
7393 * the first fraction segment is alone, because the exponent is wider.
7394 * This means for example that both the most and the least significant
7395 * bits can be in the middle of the floats, not at either end.
7398 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7399 * http://www.quadibloc.com/comp/cp0201.htm
7400 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7401 * (somebody at HP should be fired for the URLs)
7403 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7404 * (exponent bias 128, hidden first one-bit)
7406 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7407 * fraction_4:16 fraction_3:16
7408 * (exponent bias 128, hidden first one-bit)
7410 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7411 * fraction_4:16 fraction_3:16
7412 * (exponent bias 1024, hidden first one-bit)
7414 * H fraction_1:16 sign:1 exp:15
7415 * fraction_3:16 fraction_2:16
7416 * fraction_5:16 fraction_4:16
7417 * fraction_7:16 fraction_6:16
7418 * (exponent bias 16384, hidden first one-bit)
7419 * (available only on VAX, and only on Fortran?)
7421 * The formats S, T and X are available on the Alpha (and Itanium,
7422 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7423 * binary32, binary64, and binary128 (commonly: float, double, long double).
7425 * S sign:1 exp:8 mantissa:23
7426 * (exponent bias 127, hidden first one-bit)
7428 * T sign:1 exp:11 mantissa:52
7429 * (exponent bias 1022, hidden first one-bit)
7431 * X sign:1 exp:15 mantissa:112
7432 * (exponent bias 16382, hidden first one-bit)
7436 #ifdef DOUBLE_IS_VAX_FLOAT
7437 # define DOUBLE_VAX_ENDIAN
7440 #ifdef DOUBLE_IS_IEEE_FORMAT
7441 /* All the basic IEEE formats have the implicit bit,
7442 * except for the x86 80-bit extended formats, which will undef this.
7443 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7444 * do not have the implicit bit of one. */
7445 # define NV_IMPLICIT_BIT
7448 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7450 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7451 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7452 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7453 # define LONGDOUBLE_LITTLE_ENDIAN
7456 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7457 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7458 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7459 # define LONGDOUBLE_BIG_ENDIAN
7462 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7463 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7464 # define LONGDOUBLE_MIX_ENDIAN
7467 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7468 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7469 # define LONGDOUBLE_X86_80_BIT
7470 # ifdef USE_LONG_DOUBLE
7471 # undef NV_IMPLICIT_BIT
7472 # define NV_X86_80_BIT
7476 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7477 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7478 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7479 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7480 # define LONGDOUBLE_DOUBLEDOUBLE
7483 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7484 # define LONGDOUBLE_VAX_ENDIAN
7487 #endif /* LONG_DOUBLEKIND */
7489 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7490 # if defined(DOUBLE_LITTLE_ENDIAN)
7491 # define NV_LITTLE_ENDIAN
7492 # elif defined(DOUBLE_BIG_ENDIAN)
7493 # define NV_BIG_ENDIAN
7494 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7495 # define NV_MIX_ENDIAN
7497 #elif NVSIZE == DOUBLESIZE
7498 # ifdef DOUBLE_LITTLE_ENDIAN
7499 # define NV_LITTLE_ENDIAN
7501 # ifdef DOUBLE_BIG_ENDIAN
7502 # define NV_BIG_ENDIAN
7504 # ifdef DOUBLE_MIX_ENDIAN
7505 # define NV_MIX_ENDIAN
7507 # ifdef DOUBLE_VAX_ENDIAN
7508 # define NV_VAX_ENDIAN
7510 #elif NVSIZE == LONG_DOUBLESIZE
7511 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7512 # define NV_LITTLE_ENDIAN
7514 # ifdef LONGDOUBLE_BIG_ENDIAN
7515 # define NV_BIG_ENDIAN
7517 # ifdef LONGDOUBLE_MIX_ENDIAN
7518 # define NV_MIX_ENDIAN
7520 # ifdef LONGDOUBLE_VAX_ENDIAN
7521 # define NV_VAX_ENDIAN
7525 /* We have somehow managed not to define the denormal/subnormal
7528 * This may happen if the compiler doesn't expose the C99 math like
7529 * the fpclassify() without some special switches. Perl tries to
7530 * stay C89, so for example -std=c99 is not an option.
7532 * The Perl_isinf() and Perl_isnan() should have been defined even if
7533 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7534 * from the C89 DBL_MIN or moral equivalent. */
7535 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7536 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7539 /* This is not a great fallback: subnormals tests will fail,
7540 * but at least Perl will link and 99.999% of tests will work. */
7541 #if !defined(Perl_fp_class_denorm)
7542 # define Perl_fp_class_denorm(x) FALSE
7545 #ifdef DOUBLE_IS_IEEE_FORMAT
7546 # define DOUBLE_HAS_INF
7547 # define DOUBLE_HAS_NAN
7550 #ifdef DOUBLE_HAS_NAN
7556 /* PL_inf and PL_nan initialization.
7558 * For inf and nan initialization the ultimate fallback is dividing
7559 * one or zero by zero: however, some compilers will warn or even fail
7560 * on divide-by-zero, but hopefully something earlier will work.
7562 * If you are thinking of using HUGE_VAL for infinity, or using
7563 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7564 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7565 * and the math functions might be just generating DBL_MAX, or even zero.
7567 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7568 * Though logically correct, some compilers (like Visual C 2003)
7569 * falsely misoptimize that to zero (x-x is always zero, right?)
7571 * Finally, note that not all floating point formats define Inf (or NaN).
7572 * For the infinity a large number may be used instead. Operations that
7573 * under the IEEE floating point would return Inf or NaN may return
7574 * either large numbers (positive or negative), or they may cause
7575 * a floating point exception or some other fault.
7578 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7579 # ifndef USE_CPLUSPLUS
7580 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7583 # ifdef USE_QUADMATH
7584 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7586 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7587 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7588 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7589 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7590 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7592 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7593 # if defined(LDBL_INFINITY)
7594 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7595 # elif defined(LDBL_INF)
7596 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7597 # elif defined(INFINITY)
7598 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7600 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7602 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7605 # if defined(DBL_INFINITY)
7606 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7607 # elif defined(DBL_INF)
7608 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7609 # elif defined(INFINITY) /* C99 */
7610 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7612 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7614 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7619 # ifdef USE_QUADMATH
7620 /* Cannot use nanq("0") for PL_nan because not a compile-time
7622 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7623 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7624 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7625 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7626 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7628 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7629 # if defined(LDBL_NAN)
7630 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7631 # elif defined(LDBL_QNAN)
7632 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7634 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7636 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7639 # if defined(DBL_NAN)
7640 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7641 # elif defined(DBL_QNAN)
7642 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7643 # elif defined(NAN) /* C99 */
7644 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7646 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7651 # ifndef USE_CPLUSPLUS
7652 GCC_DIAG_RESTORE_DECL;
7657 INFNAN_NV_U8_DECL PL_inf;
7658 INFNAN_NV_U8_DECL PL_nan;
7664 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7665 * we will define NV_INF/NV_NAN as the nv part of the global const
7666 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7667 * might not be a compile-time constant, in which case it cannot be
7668 * used to initialize PL_inf/PL_nan above. */
7670 # define NV_INF PL_inf.nv
7673 # define NV_NAN PL_nan.nv
7676 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7677 * "nan-ness". Part of the payload is the quiet/signaling bit.
7678 * To back up a bit (harhar):
7680 * For IEEE 754 64-bit formats [1]:
7682 * s 000 (mantissa all-zero) zero
7683 * s 000 (mantissa non-zero) subnormals (denormals)
7684 * s 001 ... 7fe normals
7687 * For IEEE 754 128-bit formats:
7689 * s 0000 (mantissa all-zero) zero
7690 * s 0000 (mantissa non-zero) subnormals (denormals)
7691 * s 0001 ... 7ffe normals
7694 * [1] this looks like big-endian, but applies equally to little-endian.
7696 * s = Sign bit. Yes, zeros and nans can have negative sign,
7697 * the interpretation is application-specific.
7699 * q = Quietness bit, the interpretation is platform-specific.
7700 * Most platforms have the most significant bit being one
7701 * meaning quiet, but some (older mips, hppa) have the msb
7702 * being one meaning signaling. Note that the above means
7703 * that on most platforms there cannot be signaling nan with
7704 * zero payload because that is identical with infinity;
7705 * while conversely on older mips/hppa there cannot be a quiet nan
7706 * because that is identical with infinity.
7708 * Moreover, whether there is any behavioral difference
7709 * between quiet and signaling NaNs, depends on the platform.
7711 * x86 80-bit extended precision is different, the mantissa bits:
7713 * 63 62 61 30387+ pre-387 visual c
7714 * -------- ---- -------- --------
7715 * 0 0 0 invalid infinity
7716 * 0 0 1 invalid snan
7717 * 0 1 0 invalid snan
7718 * 0 1 1 invalid snan
7719 * 1 0 0 infinity snan 1.#INF
7720 * 1 0 1 snan 1.#SNAN
7721 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7722 * 1 1 1 qnan 1.#QNAN
7724 * This means that in this format there are 61 bits available
7725 * for the nan payload.
7727 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7728 * simply cannot preserve the bit. You can either use the 80-bit
7729 * extended precision (long double, -Duselongdouble), or use x86-64.
7731 * In all platforms, the payload bytes (and bits, some of them are
7732 * often in a partial byte) themselves can be either all zero (x86),
7733 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7734 * or in a double-double, the first half of the payload can follow the
7735 * native double, while in the second half the payload can be all
7736 * zeros. (Therefore the mask for payload bits is not necessarily
7737 * identical to bit complement of the NaN.) Another way of putting
7738 * this: the payload for the default NaN might not be zero.
7740 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7741 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7744 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7745 * On normal floats, the sign bit being on means negative. But this may,
7746 * or may not, be reverted on NaNs: in other words, the default NaN might
7747 * have the sign bit on, and therefore look like negative if you look
7748 * at it at the bit level.
7750 * NaN payloads are not propagated even on copies, or in arithmetics.
7751 * They *might* be, according to some rules, on your particular
7752 * cpu/os/compiler/libraries, but no guarantees.
7754 * To summarize, on most platforms, and for 64-bit doubles
7755 * (using big-endian ordering here):
7757 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7758 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7759 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7760 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7762 * The C99 nan() is supposed to generate *quiet* NaNs.
7764 * Note the asymmetry:
7765 * The 7FF0000000000000 is positive infinity,
7766 * the FFF0000000000000 is negative infinity.
7769 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7770 * For the standard IEEE 754 fp this number is usually one less that
7771 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7772 * real. For the 80-bit extended precision formats (x86*), the number
7773 * of mantissa bits... depends. For normal floats, it's 64. But for
7774 * the inf/nan, it's different (zero for inf, 61 for nan).
7775 * NVMANTBITS works for normal floats. */
7777 /* We do not want to include the quiet/signaling bit. */
7778 #define NV_NAN_BITS (NVMANTBITS - 1)
7780 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7781 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7782 # define NV_NAN_QS_BYTE_OFFSET 13
7783 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7784 # define NV_NAN_QS_BYTE_OFFSET 2
7785 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7786 # define NV_NAN_QS_BYTE_OFFSET 7
7787 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7788 # define NV_NAN_QS_BYTE_OFFSET 2
7789 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7790 # define NV_NAN_QS_BYTE_OFFSET 13
7791 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7792 # define NV_NAN_QS_BYTE_OFFSET 1
7793 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7794 # define NV_NAN_QS_BYTE_OFFSET 9
7795 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7796 # define NV_NAN_QS_BYTE_OFFSET 6
7798 # error "Unexpected long double format"
7801 # ifdef USE_QUADMATH
7802 # ifdef NV_LITTLE_ENDIAN
7803 # define NV_NAN_QS_BYTE_OFFSET 13
7804 # elif defined(NV_BIG_ENDIAN)
7805 # define NV_NAN_QS_BYTE_OFFSET 2
7807 # error "Unexpected quadmath format"
7809 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7810 # define NV_NAN_QS_BYTE_OFFSET 2
7811 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7812 # define NV_NAN_QS_BYTE_OFFSET 1
7813 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7814 # define NV_NAN_QS_BYTE_OFFSET 6
7815 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7816 # define NV_NAN_QS_BYTE_OFFSET 1
7817 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7818 # define NV_NAN_QS_BYTE_OFFSET 13
7819 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7820 # define NV_NAN_QS_BYTE_OFFSET 2
7821 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7822 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7823 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7824 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7826 /* For example the VAX formats should never
7827 * get here because they do not have NaN. */
7828 # error "Unexpected double format"
7831 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7832 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7833 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7834 * for the quiet/signaling */
7835 #if defined(USE_LONG_DOUBLE) && \
7836 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7837 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7838 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7839 #elif defined(USE_LONG_DOUBLE) && \
7840 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7841 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7842 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7843 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7844 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7846 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7848 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7849 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7850 * (bytes ordered big-endianly) for the quiet/signaling bit
7851 * for the quiet/signaling */
7852 #define NV_NAN_QS_BIT_OFFSET \
7853 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7854 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7855 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7856 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7857 #define NV_NAN_QS_QUIET \
7858 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7859 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7860 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7861 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7862 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7863 * Note however that these do not check whether the nvp is a NaN. */
7864 #define NV_NAN_IS_QUIET(nvp) \
7865 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7866 #define NV_NAN_IS_SIGNALING(nvp) \
7867 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7868 #define NV_NAN_SET_QUIET(nvp) \
7869 (NV_NAN_QS_QUIET ? \
7870 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7871 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7872 #define NV_NAN_SET_SIGNALING(nvp) \
7873 (NV_NAN_QS_QUIET ? \
7874 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7875 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7876 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7878 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7880 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7881 * 0xFF means "don't go here".*/
7883 /* Shorthands to avoid typoses. */
7884 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7885 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7886 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7887 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7888 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7889 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7890 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7891 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7892 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7893 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7894 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7895 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7896 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7897 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7898 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7899 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7900 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7901 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7902 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7903 NV_NAN_PAYLOAD_PERM_7_TO_0
7904 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7905 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7906 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7907 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7908 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7909 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7910 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7911 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7913 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7914 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7915 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7916 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7917 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7918 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7919 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7920 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7921 # if LONG_DOUBLESIZE == 10
7922 # define NV_NAN_PAYLOAD_MASK \
7923 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7925 # define NV_NAN_PAYLOAD_PERM \
7926 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7927 # elif LONG_DOUBLESIZE == 12
7928 # define NV_NAN_PAYLOAD_MASK \
7929 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7930 0x00, 0x00, 0x00, 0x00
7931 # define NV_NAN_PAYLOAD_PERM \
7932 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7933 # elif LONG_DOUBLESIZE == 16
7934 # define NV_NAN_PAYLOAD_MASK \
7935 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7936 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7937 # define NV_NAN_PAYLOAD_PERM \
7938 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7939 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7941 # error "Unexpected x86 80-bit little-endian long double format"
7943 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7944 # if LONG_DOUBLESIZE == 10
7945 # define NV_NAN_PAYLOAD_MASK \
7946 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7948 # define NV_NAN_PAYLOAD_PERM \
7949 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7950 # elif LONG_DOUBLESIZE == 12
7951 # define NV_NAN_PAYLOAD_MASK \
7952 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7953 0xff, 0xff, 0x00, 0x00
7954 # define NV_NAN_PAYLOAD_PERM \
7955 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7956 # elif LONG_DOUBLESIZE == 16
7957 # define NV_NAN_PAYLOAD_MASK \
7958 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7959 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7960 # define NV_NAN_PAYLOAD_PERM \
7961 NV_NAN_PAYLOAD_PERM_7_TO_0, \
7962 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7964 # error "Unexpected x86 80-bit big-endian long double format"
7966 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7967 /* For double-double we assume only the first double (in LE or BE terms)
7968 * is used for NaN. */
7969 # define NV_NAN_PAYLOAD_MASK \
7970 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7971 # define NV_NAN_PAYLOAD_PERM \
7972 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7973 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7974 # define NV_NAN_PAYLOAD_MASK \
7975 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7976 # define NV_NAN_PAYLOAD_PERM \
7977 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7978 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7979 # define NV_NAN_PAYLOAD_MASK \
7980 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7981 # define NV_NAN_PAYLOAD_PERM \
7982 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7983 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7984 # define NV_NAN_PAYLOAD_MASK \
7985 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7986 # define NV_NAN_PAYLOAD_PERM \
7987 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7989 # error "Unexpected long double format"
7992 # ifdef USE_QUADMATH /* quadmath is not long double */
7993 # ifdef NV_LITTLE_ENDIAN
7994 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7995 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7996 # elif defined(NV_BIG_ENDIAN)
7997 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7998 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8000 # error "Unexpected quadmath format"
8002 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8003 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
8004 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
8005 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8006 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
8007 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
8008 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8009 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8010 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8011 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8012 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8013 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8014 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8015 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8016 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8017 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8018 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8019 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8020 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8021 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
8022 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
8023 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8024 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8025 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8027 # error "Unexpected double format"
8031 #endif /* DOUBLE_HAS_NAN */
8036 (KEEP THIS LAST IN perl.h!)
8078 so that Configure picks them up.
8080 (KEEP THIS LAST IN perl.h!)
8084 #endif /* Include guard */
8087 * ex: set ts=8 sts=4 sw=4 et: