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 #define CPERLscope(x) x
185 #define CPERLarg void
188 #define PERL_OBJECT_THIS
189 #define _PERL_OBJECT_THIS
190 #define PERL_OBJECT_THIS_
191 #define CALL_FPTR(fptr) (*fptr)
192 #define MEMBER_TO_FPTR(name) name
193 #endif /* !PERL_CORE */
195 #define CALLRUNOPS PL_runops
197 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
199 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
200 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
201 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
202 (strbeg),(minend),(sv),(data),(flags))
203 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
204 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
205 (strend),(flags),(data))
206 #define CALLREG_INTUIT_STRING(prog) \
207 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
209 #define CALLREGFREE(prog) \
210 Perl_pregfree(aTHX_ (prog))
212 #define CALLREGFREE_PVT(prog) \
213 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
215 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
216 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
218 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
219 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
221 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
222 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
224 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
225 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
227 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
228 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
230 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
231 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
233 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
234 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
236 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
237 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
239 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
240 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
242 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
243 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
245 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
248 #define CALLREG_NAMED_BUFF_COUNT(rx) \
249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
251 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
252 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
254 #define CALLREG_PACKAGE(rx) \
255 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
257 #if defined(USE_ITHREADS)
258 #define CALLREGDUPE(prog,param) \
259 Perl_re_dup(aTHX_ (prog),(param))
261 #define CALLREGDUPE_PVT(prog,param) \
262 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
266 /* some compilers impersonate gcc */
267 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
268 # define PERL_IS_GCC 1
271 /* In case Configure was not used (we are using a "canned config"
272 * such as Win32, or a cross-compilation setup, for example) try going
273 * by the gcc major and minor versions. One useful URL is
274 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
275 * but contrary to this information warn_unused_result seems
276 * not to be in gcc 3.3.5, at least. --jhi
277 * Also, when building extensions with an installed perl, this allows
278 * the user to upgrade gcc and get the right attributes, rather than
279 * relying on the list generated at Configure time. --AD
280 * Set these up now otherwise we get confused when some of the <*thread.h>
281 * includes below indirectly pull in <perlio.h> (which needs to know if we
282 * have HASATTRIBUTE_FORMAT).
286 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
287 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
288 # define HASATTRIBUTE_DEPRECATED
290 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
291 # define HASATTRIBUTE_FORMAT
292 # if defined __MINGW32__
293 # define PRINTF_FORMAT_NULL_OK
296 # if __GNUC__ >= 3 /* 3.0 -> */
297 # define HASATTRIBUTE_MALLOC
299 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
300 # define HASATTRIBUTE_NONNULL
302 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
303 # define HASATTRIBUTE_NORETURN
305 # if __GNUC__ >= 3 /* gcc 3.0 -> */
306 # define HASATTRIBUTE_PURE
308 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
309 # define HASATTRIBUTE_UNUSED
311 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
312 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
314 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
315 # define HASATTRIBUTE_WARN_UNUSED_RESULT
317 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
318 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
319 # define HASATTRIBUTE_ALWAYS_INLINE
322 #endif /* #ifndef PERL_MICRO */
324 #ifdef HASATTRIBUTE_DEPRECATED
325 # define __attribute__deprecated__ __attribute__((deprecated))
327 #ifdef HASATTRIBUTE_FORMAT
328 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
330 #ifdef HASATTRIBUTE_MALLOC
331 # define __attribute__malloc__ __attribute__((__malloc__))
333 #ifdef HASATTRIBUTE_NONNULL
334 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
336 #ifdef HASATTRIBUTE_NORETURN
337 # define __attribute__noreturn__ __attribute__((noreturn))
339 #ifdef HASATTRIBUTE_PURE
340 # define __attribute__pure__ __attribute__((pure))
342 #ifdef HASATTRIBUTE_UNUSED
343 # define __attribute__unused__ __attribute__((unused))
345 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
346 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
348 #ifdef HASATTRIBUTE_ALWAYS_INLINE
349 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
350 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
351 # define __attribute__always_inline__ __attribute__((always_inline))
355 /* If we haven't defined the attributes yet, define them to blank. */
356 #ifndef __attribute__deprecated__
357 # define __attribute__deprecated__
359 #ifndef __attribute__format__
360 # define __attribute__format__(x,y,z)
362 #ifndef __attribute__malloc__
363 # define __attribute__malloc__
365 #ifndef __attribute__nonnull__
366 # define __attribute__nonnull__(a)
368 #ifndef __attribute__noreturn__
369 # define __attribute__noreturn__
371 #ifndef __attribute__pure__
372 # define __attribute__pure__
374 #ifndef __attribute__unused__
375 # define __attribute__unused__
377 #ifndef __attribute__warn_unused_result__
378 # define __attribute__warn_unused_result__
380 #ifndef __attribute__always_inline__
381 # define __attribute__always_inline__
384 /* Some OS warn on NULL format to printf */
385 #ifdef PRINTF_FORMAT_NULL_OK
386 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
388 # define __attribute__format__null_ok__(x,y,z)
392 * Because of backward compatibility reasons the PERL_UNUSED_DECL
393 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
395 * Note that there are C compilers such as MetroWerks CodeWarrior
396 * which do not have an "inlined" way (like the gcc __attribute__) of
397 * marking unused variables (they need e.g. a #pragma) and therefore
398 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
399 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
403 #ifndef PERL_UNUSED_DECL
404 # define PERL_UNUSED_DECL __attribute__unused__
408 * for silencing unused variables that are actually used most of the time,
409 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
410 * or variables/arguments that are used only in certain configurations.
412 =for apidoc Am||PERL_UNUSED_ARG|void x
413 This is used to suppress compiler warnings that a parameter to a function is
414 not used. This situation can arise, for example, when a parameter is needed
415 under some configuration conditions, but not others, so that C preprocessor
416 conditional compilation causes it be used just some times.
418 =for apidoc Amn||PERL_UNUSED_CONTEXT
419 This is used to suppress compiler warnings that the thread context parameter to
420 a function is not used. This situation can arise, for example, when a
421 C preprocessor conditional compilation causes it be used just some times.
423 =for apidoc Am||PERL_UNUSED_VAR|void x
424 This is used to suppress compiler warnings that the variable I<x> is not used.
425 This situation can arise, for example, when a C preprocessor conditional
426 compilation causes it be used just some times.
430 #ifndef PERL_UNUSED_ARG
431 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
433 #ifndef PERL_UNUSED_VAR
434 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
437 #if defined(USE_ITHREADS)
438 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
440 # define PERL_UNUSED_CONTEXT
443 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
444 * g++ allows them but seems to have problems with them
445 * (insane errors ensue).
446 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
448 #if defined(PERL_GCC_PEDANTIC) || \
449 (defined(__GNUC__) && defined(__cplusplus) && \
450 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
451 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
452 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
458 =for apidoc Am||PERL_UNUSED_RESULT|void x
460 This macro indicates to discard the return value of the function call inside
463 PERL_UNUSED_RESULT(foo(a, b))
465 The main reason for this is that the combination of C<gcc -Wunused-result>
466 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
467 be silenced with casting to C<void>. This causes trouble when the system
468 header files use the attribute.
470 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
471 is there for a good reason: you might lose success/failure information,
472 or leak resources, or changes in resources.
474 But sometimes you just want to ignore the return value, I<e.g.>, on
475 codepaths soon ending up in abort, or in "best effort" attempts,
476 or in situations where there is no good way to handle failures.
478 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
479 another possibility is that you can capture the return value
480 and use C<L</PERL_UNUSED_VAR>> on that.
484 The __typeof__() is used instead of typeof() since typeof() is not
485 available under strict C89, and because of compilers masquerading
486 as gcc (clang and icc), we want exactly the gcc extension
487 __typeof__ and nothing else.
490 #ifndef PERL_UNUSED_RESULT
491 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
492 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
494 # define PERL_UNUSED_RESULT(v) ((void)(v))
498 #if defined(_MSC_VER)
499 /* XXX older MSVC versions have a smallish macro buffer */
500 #define PERL_SMALL_MACRO_BUFFER
503 /* on gcc (and clang), specify that a warning should be temporarily
506 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
508 * GCC_DIAG_RESTORE_DECL;
510 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
512 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
513 * clang only pretends to be GCC 4.2, but still supports push/pop.
515 * Note on usage: all macros must be used at a place where a declaration
516 * or statement can occur, i.e., not in the middle of an expression.
517 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
518 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
519 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
520 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
521 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
522 * and behave syntactically as statements (like NOOP).
526 #if defined(__clang__) || defined(__clang) || \
527 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
528 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
529 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
530 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
531 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
532 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
534 # define GCC_DIAG_IGNORE(w)
535 # define GCC_DIAG_RESTORE
537 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
538 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
539 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
540 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
541 /* for clang specific pragmas */
542 #if defined(__clang__) || defined(__clang)
543 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
544 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
545 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
546 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
548 # define CLANG_DIAG_IGNORE(w)
549 # define CLANG_DIAG_RESTORE
551 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
552 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
553 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
554 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
556 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
557 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
558 __pragma(warning(disable : x))
559 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
561 # define MSVC_DIAG_IGNORE(x)
562 # define MSVC_DIAG_RESTORE
564 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
565 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
566 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
567 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
569 #define NOOP /*EMPTY*/(void)0
570 #define dNOOP struct Perl___notused_struct
573 /* Don't bother defining tTHX ; using it outside
574 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
580 # define aTHXa(a) NOOP
581 # define dTHXa(a) dNOOP
596 /* Backwards compatibility macro for XS code. It used to be part of
597 * the PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
601 /* these are only defined for compatibility; should not be used internally */
602 #if !defined(pTHXo) && !defined(PERL_CORE)
604 # define pTHXo_ pTHX_
606 # define aTHXo_ aTHX_
608 # define dTHXoa(x) dTHXa(x)
612 # define pTHXx PerlInterpreter *my_perl
613 # define pTHXx_ pTHXx,
614 # define aTHXx my_perl
615 # define aTHXx_ aTHXx,
619 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
620 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
621 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
622 #ifdef PERL_IMPLICIT_SYS
628 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
629 # ifndef PERL_USE_GCC_BRACE_GROUPS
630 # define PERL_USE_GCC_BRACE_GROUPS
635 =for apidoc_section Compiler directives
636 =for apidoc AmnUu|void|STMT_START
637 =for apidoc_item ||STMT_END
639 This allows a series of statements in a macro to be used as a single statement,
642 if (x) STMT_START { ... } STMT_END else ...
644 Note that you can't return a value out of them, which limits their utility.
645 But see C<L</PERL_USE_GCC_BRACE_GROUPS>>.
647 =for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
649 This C pre-processor value, if defined, indicates that it is permissible to use
650 the GCC brace groups extension. This extension, of the form
654 turns the block consisting of I<statements ...> into an expression with a
655 value, unlike plain C language blocks. This can present optimization
656 possibilities, B<BUT> you generally need to specify an alternative in case this
657 ability doesn't exist or has otherwise been forbidden.
663 #ifdef PERL_USE_GCC_BRACE_GROUPS
673 Trying to select a version that gives no warnings...
675 #if !(defined(STMT_START) && defined(STMT_END))
676 # ifdef PERL_USE_GCC_BRACE_GROUPS
677 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
680 # define STMT_START do
681 # define STMT_END while (0)
685 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
686 # define BYTEORDER 0x1234
689 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
696 * The following contortions are brought to you on behalf of all the
697 * standards, semi-standards, de facto standards, not-so-de-facto standards
698 * of the world, as well as all the other botches anyone ever thought of.
699 * The basic theory is that if we work hard enough here, the rest of the
700 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
703 /* define this once if either system, instead of cluttering up the src */
704 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
708 /* These exist only for back-compat with XS modules. */
711 #define CAN_PROTOTYPE
718 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
719 * you get a perl without taint support, but doubtlessly with a lesser
720 * degree of support. Do not do so unless you know exactly what it means
721 * technically, have a good reason to do so, and know exactly how the
722 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
723 * a potential security risk due to flat out ignoring the security-relevant
724 * taint flags. This being said, a perl without taint support compiled in
725 * has marginal run-time performance benefits.
726 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
727 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
728 * silently ignores -t/-T instead of throwing an exception.
730 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
731 * voids your nonexistent warranty!
733 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
734 # define NO_TAINT_SUPPORT 1
737 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
738 * operations into no-ops for a very modest speed-up. Enable only if you
739 * know what you're doing: tests and CPAN modules' tests are bound to fail.
741 #ifdef NO_TAINT_SUPPORT
743 # define TAINT_NOT NOOP
744 # define TAINT_IF(c) NOOP
745 # define TAINT_ENV() NOOP
746 # define TAINT_PROPER(s) NOOP
747 # define TAINT_set(s) NOOP
749 # define TAINTING_get 0
750 # define TAINTING_set(s) NOOP
751 # define TAINT_WARN_get 0
752 # define TAINT_WARN_set(s) NOOP
754 /* Set to tainted if we are running under tainting mode */
755 # define TAINT (PL_tainted = PL_tainting)
757 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
758 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
759 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
760 /* croak or warn if tainting */
761 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
762 taint_proper(NULL, s); \
764 # define TAINT_set(s) (PL_tainted = (s))
765 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
766 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
767 # define TAINTING_set(s) (PL_tainting = (s))
768 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
772 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
775 /* flags used internally only within pp_subst and pp_substcont */
777 # define SUBST_TAINT_STR 1 /* string tainted */
778 # define SUBST_TAINT_PAT 2 /* pattern tainted */
779 # define SUBST_TAINT_REPL 4 /* replacement tainted */
780 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
781 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
784 /* XXX All process group stuff is handled in pp_sys.c. Should these
785 defines move there? If so, I could simplify this a lot. --AD 9/96.
787 /* Process group stuff changed from traditional BSD to POSIX.
788 perlfunc.pod documents the traditional BSD-style syntax, so we'll
789 try to preserve that, if possible.
792 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
793 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
794 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
795 #elif defined(HAS_SETPGRP2)
796 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
798 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
799 # define HAS_SETPGRP /* Well, effectively it does . . . */
802 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
803 our life easier :-) so we'll try it.
806 # define BSD_GETPGRP(pid) getpgid((pid))
807 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
808 # define BSD_GETPGRP(pid) getpgrp((pid))
809 #elif defined(HAS_GETPGRP2)
810 # define BSD_GETPGRP(pid) getpgrp2((pid))
812 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
813 # define HAS_GETPGRP /* Well, effectively it does . . . */
816 /* These are not exact synonyms, since setpgrp() and getpgrp() may
817 have different behaviors, but perl.h used to define USE_BSDPGRP
818 (prior to 5.003_05) so some extension might depend on it.
820 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
826 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
827 pthread.h must be included before all other header files.
829 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
830 # include <pthread.h>
833 #include <sys/types.h>
849 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
862 # include <xlocale.h>
865 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
866 * functions are available, or 2) just the setlocale() function. This logic is
867 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
869 #if ! defined(NO_LOCALE)
871 # if ! defined(NO_POSIX_2008_LOCALE) \
872 && defined(HAS_NEWLOCALE) \
873 && defined(HAS_USELOCALE) \
874 && defined(HAS_DUPLOCALE) \
875 && defined(HAS_FREELOCALE) \
876 && defined(LC_ALL_MASK)
878 /* For simplicity, the code is written to assume that any platform advanced
879 * enough to have the Posix 2008 locale functions has LC_ALL. The final
880 * test above makes sure that assumption is valid */
882 # define HAS_POSIX_2008_LOCALE
884 # elif defined(HAS_SETLOCALE)
890 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
892 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
893 && defined(HAS_STRXFRM)
894 # define USE_LOCALE_COLLATE
896 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
897 # define USE_LOCALE_CTYPE
899 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
900 # define USE_LOCALE_NUMERIC
902 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
903 # define USE_LOCALE_MESSAGES
905 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
906 # define USE_LOCALE_MONETARY
908 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
909 # define USE_LOCALE_TIME
911 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
912 # define USE_LOCALE_ADDRESS
914 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
915 # define USE_LOCALE_IDENTIFICATION
917 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
918 # define USE_LOCALE_MEASUREMENT
920 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
921 # define USE_LOCALE_PAPER
923 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
924 # define USE_LOCALE_TELEPHONE
926 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
927 # define USE_LOCALE_SYNTAX
929 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
930 # define USE_LOCALE_TOD
933 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
934 * changes here MUST also be made there */
936 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
937 # define USE_POSIX_2008_LOCALE
938 # ifndef USE_THREAD_SAFE_LOCALE
939 # define USE_THREAD_SAFE_LOCALE
942 * -DUSE_THREAD_SAFE_LOCALE, will do so even
943 * on unthreaded builds */
944 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
945 && ( defined(HAS_POSIX_2008_LOCALE) \
946 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
947 && ! defined(NO_THREAD_SAFE_LOCALE)
948 # ifndef USE_THREAD_SAFE_LOCALE
949 # define USE_THREAD_SAFE_LOCALE
951 # ifdef HAS_POSIX_2008_LOCALE
952 # define USE_POSIX_2008_LOCALE
957 /* Microsoft documentation reads in the change log for VS 2015:
958 * "The localeconv function declared in locale.h now works correctly when
959 * per-thread locale is enabled. In previous versions of the library, this
960 * function would return the lconv data for the global locale, not the
963 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
964 # define TS_W32_BROKEN_LOCALECONV
970 # ifdef PARAM_NEEDS_TYPES
971 # include <sys/types.h>
973 # include <sys/param.h>
976 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
977 value something like 199306. This may be useful if no more-specific
978 feature test is available.
986 /* Use all the "standard" definitions */
989 /* If this causes problems, set i_unistd=undef in the hint file. */
991 # if defined(__amigaos4__)
993 # include <netinet/in.h>
997 # if defined(__amigaos4__)
998 /* Under AmigaOS 4 newlib.library provides an environ. However using
999 * it doesn't give us enough control over inheritance of variables by
1000 * subshells etc. so replace with custom version based on abc-shell
1002 extern char **myenviron;
1004 # define environ myenviron
1010 # include <sys/wait.h>
1013 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1014 EXTERN_C int syscall(int, ...);
1017 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1018 EXTERN_C int usleep(unsigned int);
1021 /* macros for correct constant construction. These are in C99 <stdint.h>
1022 * (so they will not be available in strict C89 mode), but they are nice, so
1023 * let's define them if necessary. */
1026 # define UINT16_C(x) ((U16_TYPE)x##U)
1028 # define UINT16_C(x) ((U16_TYPE)x##UL)
1034 # define UINT32_C(x) ((U32_TYPE)x##U)
1036 # define UINT32_C(x) ((U32_TYPE)x##UL)
1041 typedef intmax_t PERL_INTMAX_T;
1042 typedef uintmax_t PERL_UINTMAX_T;
1045 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1046 * actually mean what it has always been documented to mean (see RT #119753)
1047 * and is explicitly turned off outside of core with dire warnings about
1048 * removing the undef. */
1050 #if defined(QUADKIND)
1051 # undef PeRl_INT64_C
1052 # undef PeRl_UINT64_C
1053 /* Prefer the native integer types (int and long) over long long
1054 * (which is not C89) and Win32-specific __int64. */
1055 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1056 # define PeRl_INT64_C(c) (c)
1057 # define PeRl_UINT64_C(c) CAT2(c,U)
1059 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1060 # define PeRl_INT64_C(c) CAT2(c,L)
1061 # define PeRl_UINT64_C(c) CAT2(c,UL)
1063 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1064 # define PeRl_INT64_C(c) CAT2(c,LL)
1065 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1067 # if QUADKIND == QUAD_IS___INT64
1068 # define PeRl_INT64_C(c) CAT2(c,I64)
1069 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1071 # ifndef PeRl_INT64_C
1072 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1073 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1075 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1076 * not fly with C89-pedantic gcc, so let's undefine them first so that
1077 * we can redefine them with our native integer preferring versions. */
1078 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1083 # define INT64_C(c) PeRl_INT64_C(c)
1086 # define UINT64_C(c) PeRl_UINT64_C(c)
1090 =for apidoc_section Integer configuration values
1091 =for apidoc Am||INTMAX_C|number
1092 Returns a token the C compiler recognizes for the constant C<number> of the
1093 widest integer type on the machine. For example, if the machine has C<long
1094 long>s, C<INTMAX_C(-1)> would yield
1098 =for apidoc Am||UINTMAX_C|number
1099 Returns a token the C compiler recognizes for the constant C<number> of the
1100 widest unsigned integer type on the machine. For example, if the machine has
1101 C<long>s, C<UINTMAX_C(1)> would yield
1109 typedef I64TYPE PERL_INTMAX_T;
1110 typedef U64TYPE PERL_UINTMAX_T;
1113 # define INTMAX_C(c) INT64_C(c)
1116 # define UINTMAX_C(c) UINT64_C(c)
1119 #else /* below QUADKIND is undefined */
1121 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1123 typedef I32TYPE PERL_INTMAX_T;
1124 typedef U32TYPE PERL_UINTMAX_T;
1127 # define INTMAX_C(c) INT32_C(c)
1130 # define UINTMAX_C(c) UINT32_C(c)
1133 #endif /* no QUADKIND */
1137 /* byte-swapping functions for big-/little-endian conversion */
1138 # define _swab_16_(x) ((U16)( \
1139 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1140 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1142 # define _swab_32_(x) ((U32)( \
1143 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1144 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1145 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1146 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1149 # define _swab_64_(x) ((U64)( \
1150 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1151 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1152 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1153 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1154 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1155 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1156 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1157 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1160 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1161 at least on FreeBSD. YMMV, so experiment. */
1162 #ifndef PERL_ARENA_SIZE
1163 #define PERL_ARENA_SIZE 4080
1166 /* Maximum level of recursion */
1167 #ifndef PERL_SUB_DEPTH_WARN
1168 #define PERL_SUB_DEPTH_WARN 100
1171 #endif /* PERL_CORE */
1173 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1174 * It determines the size of local arrays in S_maybe_multiconcat() and
1177 #define PERL_MULTICONCAT_MAXARG 64
1179 /* The indexes of fields of a multiconcat aux struct.
1180 * The fixed fields are followed by nargs+1 const segment lengths,
1181 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1184 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1185 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1186 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1187 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1188 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1189 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1190 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1191 multiconcat header */
1193 /* We no longer default to creating a new SV for GvSV.
1194 Do this before embed. */
1195 #ifndef PERL_CREATE_GVSV
1196 # ifndef PERL_DONT_CREATE_GVSV
1197 # define PERL_DONT_CREATE_GVSV
1201 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1202 #define PERL_USES_PL_PIDSTATUS
1205 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1206 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1209 #define MEM_SIZE Size_t
1211 /* Round all values passed to malloc up, by default to a multiple of
1214 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1215 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1218 /* sv_grow() will expand strings by at least a certain percentage of
1219 the previously *used* length to avoid excessive calls to realloc().
1220 The default is 25% of the current length.
1222 #ifndef PERL_STRLEN_EXPAND_SHIFT
1223 # define PERL_STRLEN_EXPAND_SHIFT 2
1226 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1227 * onwards) when building Socket.xs, but we can just use a different definition
1228 * for STRUCT_OFFSET instead. */
1229 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1230 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1232 # include <stddef.h>
1233 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1236 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1237 * in C89, but apparently there are platforms where it doesn't exist. See
1238 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1240 #ifdef PERL_GCC_PEDANTIC
1241 # undef HAS_PTRDIFF_T
1244 #ifdef HAS_PTRDIFF_T
1245 # define Ptrdiff_t ptrdiff_t
1247 # define Ptrdiff_t SSize_t
1250 # include <string.h>
1252 /* This comes after <stdlib.h> so we don't try to change the standard
1253 * library prototypes; we'll use our own in proto.h instead. */
1256 # ifdef PERL_POLLUTE_MALLOC
1257 # ifndef PERL_EXTMALLOC_DEF
1258 # define Perl_malloc malloc
1259 # define Perl_calloc calloc
1260 # define Perl_realloc realloc
1261 # define Perl_mfree free
1264 # define EMBEDMYMALLOC /* for compatibility */
1267 # define safemalloc Perl_malloc
1268 # define safecalloc Perl_calloc
1269 # define saferealloc Perl_realloc
1270 # define safefree Perl_mfree
1271 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1272 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1275 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1276 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1277 # define panic_write2(s) write(2, s, strlen(s))
1278 # define CHECK_MALLOC_TAINT(newval) \
1279 CHECK_MALLOC_TOO_LATE_FOR_( \
1281 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1283 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1284 if (doing_taint(argc,argv,env)) { \
1285 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1287 #else /* MYMALLOC */
1288 # define safemalloc safesysmalloc
1289 # define safecalloc safesyscalloc
1290 # define saferealloc safesysrealloc
1291 # define safefree safesysfree
1292 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1293 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1294 # define MALLOC_CHECK_TAINT(argc,argv,env)
1295 #endif /* MYMALLOC */
1297 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1298 #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)
1299 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1300 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1301 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1304 # define memzero(d,l) memset(d,0,l)
1308 # include <netinet/in.h>
1312 # include <arpa/inet.h>
1316 # include <sys/stat.h>
1319 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1320 This definition should ideally go into win32/win32.h, but S_IFIFO is
1321 used later here in perl.h before win32/win32.h is being included. */
1322 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1323 # define S_IFIFO _S_IFIFO
1326 /* The stat macros for Unisoft System V/88 (and derivatives
1327 like UTekV) are broken, sometimes giving false positives. Undefine
1328 them here and let the code below set them to proper values.
1330 The ghs macro stands for GreenHills Software C-1.8.5 which
1331 is the C compiler for sysV88 and the various derivatives.
1332 This header file bug is corrected in gcc-2.5.8 and later versions.
1333 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1335 #if defined(m88k) && defined(ghs)
1347 # ifdef I_SYS_TIME_KERNEL
1350 # include <sys/time.h>
1351 # ifdef I_SYS_TIME_KERNEL
1356 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1357 # include <sys/times.h>
1362 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1363 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1366 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1367 # include <sys/socket.h>
1368 # if defined(USE_SOCKS) && defined(I_SOCKS)
1369 # if !defined(INCLUDE_PROTOTYPES)
1370 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1371 # define PERL_SOCKS_NEED_PROTOTYPES
1374 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1375 # undef INCLUDE_PROTOTYPES
1376 # undef PERL_SOCKS_NEED_PROTOTYPES
1387 # include <net/errno.h>
1392 /* sockatmark() is so new (2001) that many places might have it hidden
1393 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1394 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1395 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1396 # if defined(__THROW) && defined(__GLIBC__)
1397 int sockatmark(int) __THROW;
1399 int sockatmark(int);
1403 #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. */
1404 EXTERN_C int fchdir(int);
1405 EXTERN_C int flock(int, int);
1406 EXTERN_C int fseeko(FILE *, off_t, int);
1407 EXTERN_C off_t ftello(FILE *);
1410 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1411 EXTERN_C char *crypt(const char *, const char *);
1414 #if defined(__cplusplus) && defined(__CYGWIN__)
1415 EXTERN_C char *crypt(const char *, const char *);
1419 =for apidoc_section Errno
1421 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1423 Set C<errno>, and on VMS set C<vaxc$errno>.
1425 =for apidoc mn|void|dSAVEDERRNO
1427 Declare variables needed to save C<errno> and any operating system
1428 specific error number.
1430 =for apidoc mn|void|dSAVE_ERRNO
1432 Declare variables needed to save C<errno> and any operating system
1433 specific error number, and save them for optional later restoration
1434 by C<RESTORE_ERRNO>.
1436 =for apidoc mn|void|SAVE_ERRNO
1438 Save C<errno> and any operating system specific error number for
1439 optional later restoration by C<RESTORE_ERRNO>. Requires
1440 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1442 =for apidoc mn|void|RESTORE_ERRNO
1444 Restore C<errno> and any operating system specific error number that
1445 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1451 # undef SETERRNO /* SOCKS might have defined this */
1455 # define SETERRNO(errcode,vmserrcode) \
1457 set_errno(errcode); \
1458 set_vaxc_errno(vmserrcode); \
1460 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1461 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1462 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1463 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1465 # define LIB_INVARG LIB$_INVARG
1466 # define RMS_DIR RMS$_DIR
1467 # define RMS_FAC RMS$_FAC
1468 # define RMS_FEX RMS$_FEX
1469 # define RMS_FNF RMS$_FNF
1470 # define RMS_IFI RMS$_IFI
1471 # define RMS_ISI RMS$_ISI
1472 # define RMS_PRV RMS$_PRV
1473 # define SS_ACCVIO SS$_ACCVIO
1474 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1475 # define SS_IVCHAN SS$_IVCHAN
1476 # define SS_NORMAL SS$_NORMAL
1477 # define SS_NOPRIV SS$_NOPRIV
1478 # define SS_BUFFEROVF SS$_BUFFEROVF
1480 # define LIB_INVARG 0
1488 # define SS_ACCVIO 0
1489 # define SS_DEVOFFLINE 0
1490 # define SS_IVCHAN 0
1491 # define SS_NORMAL 0
1492 # define SS_NOPRIV 0
1493 # define SS_BUFFEROVF 0
1497 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1498 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1499 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1500 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1504 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1505 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1506 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1507 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1511 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1515 # define dSAVEDERRNO int saved_errno
1516 # define dSAVE_ERRNO int saved_errno = errno
1517 # define SAVE_ERRNO (saved_errno = errno)
1518 # define RESTORE_ERRNO (errno = saved_errno)
1522 =for apidoc_section Warning and Dieing
1524 =for apidoc Amn|SV *|ERRSV
1526 Returns the SV for C<$@>, creating it if needed.
1528 =for apidoc Am|void|CLEAR_ERRSV
1530 Clear the contents of C<$@>, setting it to the empty string.
1532 This replaces any read-only SV with a fresh SV and removes any magic.
1534 =for apidoc Am|void|SANE_ERRSV
1536 Clean up ERRSV so we can safely set it.
1538 This replaces any read-only SV with a fresh writable copy and removes
1544 #define ERRSV GvSVn(PL_errgv)
1546 /* contains inlined gv_add_by_type */
1547 #define CLEAR_ERRSV() STMT_START { \
1548 SV ** const svp = &GvSV(PL_errgv); \
1550 *svp = newSVpvs(""); \
1551 } else if (SvREADONLY(*svp)) { \
1552 SvREFCNT_dec_NN(*svp); \
1553 *svp = newSVpvs(""); \
1555 SV *const errsv = *svp; \
1557 SvPOK_only(errsv); \
1558 if (SvMAGICAL(errsv)) { \
1564 /* contains inlined gv_add_by_type */
1565 #define SANE_ERRSV() STMT_START { \
1566 SV ** const svp = &GvSV(PL_errgv); \
1568 *svp = newSVpvs(""); \
1569 } else if (SvREADONLY(*svp)) { \
1570 SV *dupsv = newSVsv(*svp); \
1571 SvREFCNT_dec_NN(*svp); \
1574 SV *const errsv = *svp; \
1575 if (SvMAGICAL(errsv)) { \
1583 # define DEFSV (0 + GvSVn(PL_defgv))
1584 # define DEFSV_set(sv) \
1585 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1586 # define SAVE_DEFSV \
1588 save_gp(PL_defgv, 0), \
1589 GvINTRO_off(PL_defgv), \
1590 SAVEGENERICSV(GvSV(PL_defgv)), \
1591 GvSV(PL_defgv) = NULL \
1594 # define DEFSV GvSVn(PL_defgv)
1595 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1596 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1600 =for apidoc_section SV Handling
1601 =for apidoc Amn|SV *|DEFSV
1602 Returns the SV associated with C<$_>
1604 =for apidoc Am|void|DEFSV_set|SV * sv
1605 Associate C<sv> with C<$_>
1607 =for apidoc Amn|void|SAVE_DEFSV
1608 Localize C<$_>. See L<perlguts/Localizing changes>.
1614 extern int errno; /* ANSI allows errno to be an lvalue expr.
1615 * For example in multithreaded environments
1616 * something like this might happen:
1617 * extern int *_errno(void);
1618 * #define errno (*_errno()) */
1621 #define UNKNOWN_ERRNO_MSG "(unknown)"
1624 #define Strerror(e) strerror((e), vaxc$errno)
1626 #define Strerror(e) strerror(e)
1631 # include <sys/ioctl.h>
1635 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1636 # ifdef HAS_SOCKETPAIR
1637 # undef HAS_SOCKETPAIR
1644 #ifndef HAS_SOCKETPAIR
1646 # define socketpair Perl_my_socketpair
1651 # define htoni htons
1652 # define ntohi ntohs
1654 # define htoni htonl
1655 # define ntohi ntohl
1658 /* Configure already sets Direntry_t */
1659 #if defined(I_DIRENT)
1660 # include <dirent.h>
1661 #elif defined(I_SYS_NDIR)
1662 # include <sys/ndir.h>
1663 #elif defined(I_SYS_DIR)
1664 # include <sys/dir.h>
1668 * The following gobbledygook brought to you on behalf of __STDC__.
1669 * (I could just use #ifndef __STDC__, but this is more bulletproof
1670 * in the face of half-implementations.)
1673 #if defined(I_SYSMODE)
1674 #include <sys/mode.h>
1679 # define S_IFMT _S_IFMT
1681 # define S_IFMT 0170000
1686 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1690 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1695 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1697 # define S_ISBLK(m) (0)
1702 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1707 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1709 # define S_ISFIFO(m) (0)
1715 # define S_ISLNK(m) _S_ISLNK(m)
1716 # elif defined(_S_IFLNK)
1717 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1718 # elif defined(S_IFLNK)
1719 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1721 # define S_ISLNK(m) (0)
1727 # define S_ISSOCK(m) _S_ISSOCK(m)
1728 # elif defined(_S_IFSOCK)
1729 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1730 # elif defined(S_IFSOCK)
1731 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1733 # define S_ISSOCK(m) (0)
1739 # define S_IRUSR S_IREAD
1740 # define S_IWUSR S_IWRITE
1741 # define S_IXUSR S_IEXEC
1743 # define S_IRUSR 0400
1744 # define S_IWUSR 0200
1745 # define S_IXUSR 0100
1751 # define S_IRGRP (S_IRUSR>>3)
1752 # define S_IWGRP (S_IWUSR>>3)
1753 # define S_IXGRP (S_IXUSR>>3)
1755 # define S_IRGRP 0040
1756 # define S_IWGRP 0020
1757 # define S_IXGRP 0010
1763 # define S_IROTH (S_IRUSR>>6)
1764 # define S_IWOTH (S_IWUSR>>6)
1765 # define S_IXOTH (S_IXUSR>>6)
1767 # define S_IROTH 0040
1768 # define S_IWOTH 0020
1769 # define S_IXOTH 0010
1774 # define S_ISUID 04000
1778 # define S_ISGID 02000
1782 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1786 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1790 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1793 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1794 * which would get included through <sys/file.h >, but that is 3000
1795 * lines in the future. --jhi */
1797 #if !defined(S_IREAD) && !defined(__HAIKU__)
1798 # define S_IREAD S_IRUSR
1801 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1802 # define S_IWRITE S_IWUSR
1806 # define S_IEXEC S_IXUSR
1809 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1810 # define SLOPPYDIVIDE
1817 /* This used to be conditionally defined based on whether we had a sprintf()
1818 * that correctly returns the string length (as required by C89), but we no
1819 * longer need that. XS modules can (and do) use this name, so it must remain
1820 * a part of the API that's visible to modules.
1822 =for apidoc_section String Handling
1823 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1825 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1830 #define my_sprintf sprintf
1833 * If we have v?snprintf() and the C99 variadic macros, we can just
1834 * use just the v?snprintf(). It is nice to try to trap the buffer
1835 * overflow, however, so if we are DEBUGGING, and we cannot use the
1836 * gcc statement expressions, then use the function wrappers which try
1837 * to trap the overflow. If we can use the gcc statement expressions,
1838 * we can try that even with the version that uses the C99 variadic
1842 /* Note that we do not check against snprintf()/vsnprintf() returning
1843 * negative values because that is non-standard behaviour and we use
1844 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1845 * that should be true only if the snprintf()/vsnprintf() are true
1846 * to the standard. */
1848 #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
1851 # define my_snprintf Perl_my_snprintf
1852 # define PERL_MY_SNPRINTF_GUARDED
1853 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1854 # ifdef PERL_USE_GCC_BRACE_GROUPS
1855 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1856 # define PERL_MY_SNPRINTF_GUARDED
1858 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1861 # define my_snprintf Perl_my_snprintf
1862 # define PERL_MY_SNPRINTF_GUARDED
1865 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1866 * dies if called under USE_QUADMATH. */
1867 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1868 # ifdef PERL_USE_GCC_BRACE_GROUPS
1869 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1870 # define PERL_MY_VSNPRINTF_GUARDED
1872 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1875 # define my_vsnprintf Perl_my_vsnprintf
1876 # define PERL_MY_VSNPRINTF_GUARDED
1879 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1880 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1881 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1882 * completely ignore it: otherwise you cannot know whether your output
1885 * int len = my_sprintf(buf, max, ...);
1886 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1888 * The trick is that in certain platforms [a] the my_sprintf() already
1889 * contains the sanity check, while in certain platforms [b] it needs
1890 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1891 * platforms the POST_GUARD actually does nothing since the check has
1892 * already been done. Watch out for the max being the same in both calls.
1894 * If you actually use the snprintf/vsnprintf return value already,
1895 * you assumedly are checking its validity somehow. But you can
1896 * insert the POST_GUARD() also in that case. */
1898 #ifndef PERL_MY_SNPRINTF_GUARDED
1899 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1901 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1904 #ifndef PERL_MY_VSNPRINTF_GUARDED
1905 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1907 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1911 # define my_strlcat strlcat
1914 #if defined(PERL_CORE) || defined(PERL_EXT)
1916 # define my_memrchr memrchr
1918 # define my_memrchr S_my_memrchr
1923 # define my_strlcpy strlcpy
1927 # define my_strnlen strnlen
1931 The IV type is supposed to be long enough to hold any integral
1933 --Andy Dougherty August 1996
1939 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1940 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1941 # define IV_MAX ((IV)INT64_MAX)
1942 # define IV_MIN ((IV)INT64_MIN)
1943 # define UV_MAX ((UV)UINT64_MAX)
1945 # define UINT64_MIN 0
1947 # define UV_MIN ((UV)UINT64_MIN)
1949 # define IV_MAX PERL_QUAD_MAX
1950 # define IV_MIN PERL_QUAD_MIN
1951 # define UV_MAX PERL_UQUAD_MAX
1952 # define UV_MIN PERL_UQUAD_MIN
1957 # if defined(INT32_MAX) && IVSIZE == 4
1958 # define IV_MAX ((IV)INT32_MAX)
1959 # define IV_MIN ((IV)INT32_MIN)
1960 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1961 # define UV_MAX ((UV)UINT32_MAX)
1963 # define UV_MAX ((UV)4294967295U)
1966 # define UINT32_MIN 0
1968 # define UV_MIN ((UV)UINT32_MIN)
1970 # define IV_MAX PERL_LONG_MAX
1971 # define IV_MIN PERL_LONG_MIN
1972 # define UV_MAX PERL_ULONG_MAX
1973 # define UV_MIN PERL_ULONG_MIN
1984 #if !defined(PERL_CORE)
1985 /* We think that removing this decade-old undef this will cause too much
1986 breakage on CPAN for too little gain. (See RT #119753)
1987 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1993 #define Size_t_MAX (~(Size_t)0)
1994 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1996 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1997 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1999 #ifndef NO_PERL_PRESERVE_IVUV
2000 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
2004 * The macros INT2PTR and NUM2PTR are (despite their names)
2005 * bi-directional: they will convert int/float to or from pointers.
2006 * However the conversion to int/float are named explicitly:
2007 * PTR2IV, PTR2UV, PTR2NV.
2009 * For int conversions we do not need two casts if pointers are
2010 * the same size as IV and UV. Otherwise we need an explicit
2011 * cast (PTRV) to avoid compiler warnings.
2013 * These are mentioned in perlguts
2015 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2017 # define INT2PTR(any,d) (any)(d)
2018 #elif PTRSIZE == LONGSIZE
2019 # define PTRV unsigned long
2020 # define PTR2ul(p) (unsigned long)(p)
2022 # define PTRV unsigned
2026 # define INT2PTR(any,d) (any)(PTRV)(d)
2030 # define PTR2ul(p) INT2PTR(unsigned long,p)
2033 #define NUM2PTR(any,d) (any)(PTRV)(d)
2034 #define PTR2IV(p) INT2PTR(IV,p)
2035 #define PTR2UV(p) INT2PTR(UV,p)
2036 #define PTR2NV(p) NUM2PTR(NV,p)
2037 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2039 /* According to strict ANSI C89 one cannot freely cast between
2040 * data pointers and function (code) pointers. There are at least
2041 * two ways around this. One (used below) is to do two casts,
2042 * first the other pointer to an (unsigned) integer, and then
2043 * the integer to the other pointer. The other way would be
2044 * to use unions to "overlay" the pointers. For an example of
2045 * the latter technique, see union dirpu in struct xpvio in sv.h.
2046 * The only feasible use is probably temporarily storing
2047 * function pointers in a data pointer (such as a void pointer). */
2049 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2050 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2052 #ifdef USE_LONG_DOUBLE
2053 # if LONG_DOUBLESIZE == DOUBLESIZE
2054 # define LONG_DOUBLE_EQUALS_DOUBLE
2055 # undef USE_LONG_DOUBLE /* Ouch! */
2059 /* The following is all to get LDBL_DIG, in order to pick a nice
2060 default value for printing floating point numbers in Gconvert.
2063 #ifndef HAS_LDBL_DIG
2064 # if LONG_DOUBLESIZE == 10
2065 # define LDBL_DIG 18 /* assume IEEE */
2066 # elif LONG_DOUBLESIZE == 12
2067 # define LDBL_DIG 18 /* gcc? */
2068 # elif LONG_DOUBLESIZE == 16
2069 # define LDBL_DIG 33 /* assume IEEE */
2070 # elif LONG_DOUBLESIZE == DOUBLESIZE
2071 # define LDBL_DIG DBL_DIG /* bummer */
2078 # include <ieeefp.h>
2081 #if defined(__DECC) && defined(__osf__)
2082 /* Also Tru64 cc has broken NaN comparisons. */
2083 # define NAN_COMPARE_BROKEN
2086 # define NAN_COMPARE_BROKEN
2089 #ifdef USE_LONG_DOUBLE
2091 # include <sunmath.h>
2093 # if defined(LDBL_DIG)
2094 # define NV_DIG LDBL_DIG
2095 # ifdef LDBL_MANT_DIG
2096 # define NV_MANT_DIG LDBL_MANT_DIG
2099 # define NV_MIN LDBL_MIN
2102 # define NV_MAX LDBL_MAX
2104 # ifdef LDBL_MIN_EXP
2105 # define NV_MIN_EXP LDBL_MIN_EXP
2107 # ifdef LDBL_MAX_EXP
2108 # define NV_MAX_EXP LDBL_MAX_EXP
2110 # ifdef LDBL_MIN_10_EXP
2111 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2113 # ifdef LDBL_MAX_10_EXP
2114 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2116 # ifdef LDBL_EPSILON
2117 # define NV_EPSILON LDBL_EPSILON
2120 # define NV_MAX LDBL_MAX
2121 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2122 # elif defined(HUGE_VALL)
2123 # define NV_MAX HUGE_VALL
2126 # if defined(HAS_SQRTL)
2127 # define Perl_acos acosl
2128 # define Perl_asin asinl
2129 # define Perl_atan atanl
2130 # define Perl_atan2 atan2l
2131 # define Perl_ceil ceill
2132 # define Perl_cos cosl
2133 # define Perl_cosh coshl
2134 # define Perl_exp expl
2135 /* no Perl_fabs, but there's PERL_ABS */
2136 # define Perl_floor floorl
2137 # define Perl_fmod fmodl
2138 # define Perl_log logl
2139 # define Perl_log10 log10l
2140 # define Perl_pow powl
2141 # define Perl_sin sinl
2142 # define Perl_sinh sinhl
2143 # define Perl_sqrt sqrtl
2144 # define Perl_tan tanl
2145 # define Perl_tanh tanhl
2147 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2150 # define Perl_modf(x,y) modfl(x,y)
2151 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2152 prototype in <math.h> */
2153 # ifndef HAS_MODFL_PROTO
2154 EXTERN_C long double modfl(long double, long double *);
2156 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2157 extern long double Perl_my_modfl(long double x, long double *ip);
2158 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2163 # define Perl_frexp(x,y) frexpl(x,y)
2164 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2165 extern long double Perl_my_frexpl(long double x, int *e);
2166 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2171 # define Perl_ldexp(x, y) ldexpl(x,y)
2172 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2173 # define Perl_ldexp(x,y) scalbnl(x,y)
2177 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2178 # define Perl_isnan(x) isnanl(x)
2179 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2180 # define Perl_isnan(x) isnan(x)
2184 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2185 # define Perl_isinf(x) isinfl(x)
2186 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2187 # define Perl_isinf(x) isinf(x)
2188 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2189 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2192 # ifndef Perl_isfinite
2193 # define Perl_isfinite(x) Perl_isfinitel(x)
2195 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2196 # include <quadmath.h>
2197 # define NV_DIG FLT128_DIG
2198 # define NV_MANT_DIG FLT128_MANT_DIG
2199 # define NV_MIN FLT128_MIN
2200 # define NV_MAX FLT128_MAX
2201 # define NV_MIN_EXP FLT128_MIN_EXP
2202 # define NV_MAX_EXP FLT128_MAX_EXP
2203 # define NV_EPSILON FLT128_EPSILON
2204 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2205 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2206 # define Perl_acos acosq
2207 # define Perl_asin asinq
2208 # define Perl_atan atanq
2209 # define Perl_atan2 atan2q
2210 # define Perl_ceil ceilq
2211 # define Perl_cos cosq
2212 # define Perl_cosh coshq
2213 # define Perl_exp expq
2214 /* no Perl_fabs, but there's PERL_ABS */
2215 # define Perl_floor floorq
2216 # define Perl_fmod fmodq
2217 # define Perl_log logq
2218 # define Perl_log10 log10q
2219 # define Perl_signbit signbitq
2220 # define Perl_pow powq
2221 # define Perl_sin sinq
2222 # define Perl_sinh sinhq
2223 # define Perl_sqrt sqrtq
2224 # define Perl_tan tanq
2225 # define Perl_tanh tanhq
2226 # define Perl_modf(x,y) modfq(x,y)
2227 # define Perl_frexp(x,y) frexpq(x,y)
2228 # define Perl_ldexp(x, y) ldexpq(x,y)
2229 # define Perl_isinf(x) isinfq(x)
2230 # define Perl_isnan(x) isnanq(x)
2231 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2232 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2233 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2234 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2235 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2236 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2237 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2239 # define NV_DIG DBL_DIG
2240 # define NV_MANT_DIG DBL_MANT_DIG
2241 # define NV_MIN DBL_MIN
2242 # define NV_MAX DBL_MAX
2243 # define NV_MIN_EXP DBL_MIN_EXP
2244 # define NV_MAX_EXP DBL_MAX_EXP
2245 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2246 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2247 # define NV_EPSILON DBL_EPSILON
2248 # define NV_MAX DBL_MAX
2249 # define NV_MIN DBL_MIN
2251 /* These math interfaces are C89. */
2252 # define Perl_acos acos
2253 # define Perl_asin asin
2254 # define Perl_atan atan
2255 # define Perl_atan2 atan2
2256 # define Perl_ceil ceil
2257 # define Perl_cos cos
2258 # define Perl_cosh cosh
2259 # define Perl_exp exp
2260 /* no Perl_fabs, but there's PERL_ABS */
2261 # define Perl_floor floor
2262 # define Perl_fmod fmod
2263 # define Perl_log log
2264 # define Perl_log10 log10
2265 # define Perl_pow pow
2266 # define Perl_sin sin
2267 # define Perl_sinh sinh
2268 # define Perl_sqrt sqrt
2269 # define Perl_tan tan
2270 # define Perl_tanh tanh
2272 # define Perl_modf(x,y) modf(x,y)
2273 # define Perl_frexp(x,y) frexp(x,y)
2274 # define Perl_ldexp(x,y) ldexp(x,y)
2278 # define Perl_isnan(x) isnan(x)
2282 # if defined(HAS_ISINF)
2283 # define Perl_isinf(x) isinf(x)
2284 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2285 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2288 # ifndef Perl_isfinite
2289 # ifdef HAS_ISFINITE
2290 # define Perl_isfinite(x) isfinite(x)
2291 # elif defined(HAS_FINITE)
2292 # define Perl_isfinite(x) finite(x)
2297 /* fpclassify(): C99. It is supposed to be a macro that switches on
2298 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2299 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2301 # if defined(FP_INFINITE) && defined(FP_NAN)
2302 # define Perl_fp_class(x) fpclassify(x)
2303 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2304 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2305 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2306 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2307 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2308 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2309 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2310 * actually not the C99 fpclassify, with its own set of return defines. */
2311 # define Perl_fp_class(x) fpclassify(x)
2312 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2313 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2314 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2315 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2316 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2317 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2318 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2319 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2320 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2321 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2323 # undef Perl_fp_class /* Unknown set of defines */
2327 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2328 * are identical to the C99 fpclassify(). */
2329 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2332 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2334 /* oh, and the isnormal macro has a typo in it! */
2336 # define isnormal(x) Perl_fp_class_norm(x)
2338 # if defined(FP_INFINITE) && defined(FP_NAN)
2339 # define Perl_fp_class(x) fp_classify(x)
2340 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2341 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2342 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2343 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2344 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2346 # undef Perl_fp_class /* Unknown set of defines */
2350 /* Feel free to check with me for the SGI manpages, SGI testing,
2351 * etcetera, if you want to try getting this to work with IRIX.
2353 * - Allen <allens@cpan.org> */
2355 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2356 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2357 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2358 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2359 * Define some symbols also as cpp symbols so we can detect them. */
2360 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2361 # define FP_PINF FP_PINF
2362 # define FP_QNAN FP_QNAN
2366 # include <ieeefp.h>
2371 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2372 # define Perl_fp_class(x) fpclassl(x)
2374 # define Perl_fp_class(x) fpclass(x)
2376 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2377 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2378 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2379 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2380 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2381 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2382 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2383 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2384 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2385 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2386 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2387 # elif defined(FP_PINF) && defined(FP_QNAN)
2388 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2389 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2390 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2391 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2392 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2393 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2394 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2395 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2396 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2397 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2399 # undef Perl_fp_class /* Unknown set of defines */
2403 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2404 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2406 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2407 # include <fp_class.h>
2409 # if defined(FP_POS_INF) && defined(FP_QNAN)
2410 # ifdef __sgi /* XXX Configure test instead */
2411 # ifdef USE_LONG_DOUBLE
2412 # define Perl_fp_class(x) fp_class_l(x)
2414 # define Perl_fp_class(x) fp_class_d(x)
2417 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2418 # define Perl_fp_class(x) fp_classl(x)
2420 # define Perl_fp_class(x) fp_class(x)
2423 # if defined(FP_POS_INF) && defined(FP_QNAN)
2424 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2425 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2426 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2427 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2428 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2429 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2430 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2431 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2432 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2433 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2435 # undef Perl_fp_class /* Unknown set of defines */
2440 /* class(), _class(): Legacy: AIX. */
2441 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2443 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2445 # define Perl_fp_class(x) class(x)
2447 # define Perl_fp_class(x) _class(x)
2449 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2450 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2451 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2452 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2453 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2454 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2455 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2456 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2457 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2458 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2459 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2461 # undef Perl_fp_class /* Unknown set of defines */
2466 /* Win32: _fpclass(), _isnan(), _finite(). */
2469 # define Perl_isnan(x) _isnan(x)
2471 # ifndef Perl_isfinite
2472 # define Perl_isfinite(x) _finite(x)
2474 # ifndef Perl_fp_class_snan
2475 /* No simple way to #define Perl_fp_class because _fpclass()
2476 * returns a set of bits. */
2477 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2478 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2479 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2480 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2481 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2482 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2483 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2484 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2485 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2486 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2487 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2488 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2489 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2490 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2491 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2495 #if !defined(Perl_fp_class_inf) && \
2496 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2497 # define Perl_fp_class_inf(x) \
2498 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2501 #if !defined(Perl_fp_class_nan) && \
2502 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2503 # define Perl_fp_class_nan(x) \
2504 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2507 #if !defined(Perl_fp_class_zero) && \
2508 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2509 # define Perl_fp_class_zero(x) \
2510 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2513 #if !defined(Perl_fp_class_norm) && \
2514 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2515 # define Perl_fp_class_norm(x) \
2516 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2519 #if !defined(Perl_fp_class_denorm) && \
2520 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2521 # define Perl_fp_class_denorm(x) \
2522 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2526 # ifdef Perl_fp_class_nan
2527 # define Perl_isnan(x) Perl_fp_class_nan(x)
2528 # elif defined(HAS_UNORDERED)
2529 # define Perl_isnan(x) unordered((x), 0.0)
2531 # define Perl_isnan(x) ((x)!=(x))
2536 # ifdef Perl_fp_class_inf
2537 # define Perl_isinf(x) Perl_fp_class_inf(x)
2541 #ifndef Perl_isfinite
2542 # if defined(HAS_ISFINITE) && !defined(isfinite)
2543 # define Perl_isfinite(x) isfinite((double)(x))
2544 # elif defined(HAS_FINITE)
2545 # define Perl_isfinite(x) finite((double)(x))
2546 # elif defined(Perl_fp_class_finite)
2547 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2549 /* For the infinities the multiplication returns nan,
2550 * for the nan the multiplication also returns nan,
2551 * for everything else (that is, finite) zero should be returned. */
2552 # define Perl_isfinite(x) (((x) * 0) == 0)
2557 # if defined(Perl_isfinite) && defined(Perl_isnan)
2558 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2562 /* We need Perl_isfinitel (ends with ell) (if available) even when
2563 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2565 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2566 /* If isfinite() is a macro and looks like we have C99,
2567 * we assume it's the type-aware C99 isfinite(). */
2568 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2569 # define Perl_isfinitel(x) isfinite(x)
2570 # elif defined(HAS_ISFINITEL)
2571 # define Perl_isfinitel(x) isfinitel(x)
2572 # elif defined(HAS_FINITEL)
2573 # define Perl_isfinitel(x) finitel(x)
2574 # elif defined(HAS_INFL) && defined(HAS_NANL)
2575 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2577 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2581 /* The default is to use Perl's own atof() implementation (in numeric.c).
2582 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2583 * it is however best to use the native implementation of atof.
2584 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2585 * Some good tests to try out with either setting are t/base/num.t,
2586 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2587 * you may need to be using a different function than atof! */
2589 #ifndef USE_PERL_ATOF
2591 # define USE_PERL_ATOF
2594 # if USE_PERL_ATOF == 0
2595 # undef USE_PERL_ATOF
2599 #ifdef USE_PERL_ATOF
2600 # define Perl_atof(s) Perl_my_atof(s)
2601 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2603 # define Perl_atof(s) (NV)atof(s)
2604 # define Perl_atof2(s, n) ((n) = atof(s))
2606 #define my_atof2(a,b) my_atof3(a,b,0)
2609 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2610 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2611 * depending on local options. Until Configure detects this (or at least
2612 * detects whether the "signed" keyword is available) the CHAR ranges
2613 * will not be included. UCHAR functions normally.
2617 #define PERL_UCHAR_MIN ((unsigned char)0)
2618 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2620 #define PERL_USHORT_MIN ((unsigned short)0)
2621 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2623 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2624 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2626 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2627 #define PERL_UINT_MIN ((unsigned int)0)
2629 #define PERL_INT_MAX ((int)INT_MAX)
2630 #define PERL_INT_MIN ((int)INT_MIN)
2632 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2633 #define PERL_ULONG_MIN ((unsigned long)0L)
2635 #define PERL_LONG_MAX ((long)LONG_MAX)
2636 #define PERL_LONG_MIN ((long)LONG_MIN)
2639 # define PERL_UQUAD_MAX (~(UV)0)
2640 # define PERL_UQUAD_MIN ((UV)0)
2641 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2642 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2646 =for apidoc_section Integer configuration values
2648 =for apidoc AmnU||PERL_INT_MAX
2649 =for apidoc_item ||PERL_INT_MIN
2650 =for apidoc_item ||PERL_LONG_MAX
2651 =for apidoc_item ||PERL_LONG_MIN
2652 =for apidoc_item ||PERL_SHORT_MAX
2653 =for apidoc_item ||PERL_SHORT_MIN
2654 =for apidoc_item ||PERL_UCHAR_MAX
2655 =for apidoc_item ||PERL_UCHAR_MIN
2656 =for apidoc_item ||PERL_UINT_MAX
2657 =for apidoc_item ||PERL_UINT_MIN
2658 =for apidoc_item ||PERL_ULONG_MAX
2659 =for apidoc_item ||PERL_ULONG_MIN
2660 =for apidoc_item ||PERL_USHORT_MAX
2661 =for apidoc_item ||PERL_USHORT_MIN
2662 =for apidoc_item ||PERL_QUAD_MAX
2663 =for apidoc_item ||PERL_QUAD_MIN
2664 =for apidoc_item ||PERL_UQUAD_MAX
2665 =for apidoc_item ||PERL_UQUAD_MIN
2667 These give the largest and smallest number representable in the current
2668 platform in variables of the corresponding types.
2670 For signed types, the smallest representable number is the most negative
2671 number, the one furthest away from zero.
2673 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2674 are available to the C code. But these constants, furnished by Perl,
2675 allow code compiled on earlier compilers to portably have access to the same
2682 typedef MEM_SIZE STRLEN;
2684 typedef struct op OP;
2685 typedef struct cop COP;
2686 typedef struct unop UNOP;
2687 typedef struct unop_aux UNOP_AUX;
2688 typedef struct binop BINOP;
2689 typedef struct listop LISTOP;
2690 typedef struct logop LOGOP;
2691 typedef struct pmop PMOP;
2692 typedef struct svop SVOP;
2693 typedef struct padop PADOP;
2694 typedef struct pvop PVOP;
2695 typedef struct loop LOOP;
2696 typedef struct methop METHOP;
2699 typedef struct opslab OPSLAB;
2700 typedef struct opslot OPSLOT;
2703 typedef struct block_hooks BHK;
2704 typedef struct custom_op XOP;
2706 typedef struct interpreter PerlInterpreter;
2708 /* SGI's <sys/sema.h> has struct sv */
2710 # define STRUCT_SV perl_sv
2712 # define STRUCT_SV sv
2714 typedef struct STRUCT_SV SV;
2715 typedef struct av AV;
2716 typedef struct hv HV;
2717 typedef struct cv CV;
2718 typedef struct p5rx REGEXP;
2719 typedef struct gp GP;
2720 typedef struct gv GV;
2721 typedef struct io IO;
2722 typedef struct context PERL_CONTEXT;
2723 typedef struct block BLOCK;
2725 typedef struct magic MAGIC;
2726 typedef struct xpv XPV;
2727 typedef struct xpviv XPVIV;
2728 typedef struct xpvuv XPVUV;
2729 typedef struct xpvnv XPVNV;
2730 typedef struct xpvmg XPVMG;
2731 typedef struct xpvlv XPVLV;
2732 typedef struct xpvinvlist XINVLIST;
2733 typedef struct xpvav XPVAV;
2734 typedef struct xpvhv XPVHV;
2735 typedef struct xpvgv XPVGV;
2736 typedef struct xpvcv XPVCV;
2737 typedef struct xpvbm XPVBM;
2738 typedef struct xpvfm XPVFM;
2739 typedef struct xpvio XPVIO;
2740 typedef struct mgvtbl MGVTBL;
2741 typedef union any ANY;
2742 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2743 typedef struct ptr_tbl PTR_TBL_t;
2744 typedef struct clone_params CLONE_PARAMS;
2746 /* a pad is currently just an AV; but that might change,
2747 * so hide the type. */
2748 typedef struct padlist PADLIST;
2750 typedef struct padnamelist PADNAMELIST;
2751 typedef struct padname PADNAME;
2753 /* always enable PERL_OP_PARENT */
2754 #if !defined(PERL_OP_PARENT)
2755 # define PERL_OP_PARENT
2758 /* enable PERL_COPY_ON_WRITE by default */
2759 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2760 # define PERL_COPY_ON_WRITE
2763 #ifdef PERL_COPY_ON_WRITE
2764 # define PERL_ANY_COW
2766 # define PERL_SAWAMPERSAND
2769 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2770 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2774 #include "charclass_invlists.h"
2776 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2777 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2778 # define USE_64_BIT_RAWIO /* implicit */
2782 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2783 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2784 * however, because operating systems like to do that themself. */
2787 # define FSEEKSIZE LSEEKSIZE
2789 # define FSEEKSIZE LONGSIZE
2793 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2794 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2795 # define USE_64_BIT_STDIO /* implicit */
2799 #ifdef USE_64_BIT_RAWIO
2802 # define Off_t off64_t
2804 # define LSEEKSIZE 8
2806 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2807 * will trigger defines like the ones below. Some 64-bit environments,
2808 * however, do not. Therefore we have to explicitly mix and match. */
2809 # if defined(USE_OPEN64)
2810 # define open open64
2812 # if defined(USE_LSEEK64)
2813 # define lseek lseek64
2815 # if defined(USE_LLSEEK)
2816 # define lseek llseek
2819 # if defined(USE_STAT64)
2820 # define stat stat64
2822 # if defined(USE_FSTAT64)
2823 # define fstat fstat64
2825 # if defined(USE_LSTAT64)
2826 # define lstat lstat64
2828 # if defined(USE_FLOCK64)
2829 # define flock flock64
2831 # if defined(USE_LOCKF64)
2832 # define lockf lockf64
2834 # if defined(USE_FCNTL64)
2835 # define fcntl fcntl64
2837 # if defined(USE_TRUNCATE64)
2838 # define truncate truncate64
2840 # if defined(USE_FTRUNCATE64)
2841 # define ftruncate ftruncate64
2845 #ifdef USE_64_BIT_STDIO
2846 # ifdef HAS_FPOS64_T
2848 # define Fpos_t fpos64_t
2850 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2851 * will trigger defines like the ones below. Some 64-bit environments,
2852 * however, do not. */
2853 # if defined(USE_FOPEN64)
2854 # define fopen fopen64
2856 # if defined(USE_FSEEK64)
2857 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2859 # if defined(USE_FTELL64)
2860 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2862 # if defined(USE_FSETPOS64)
2863 # define fsetpos fsetpos64
2865 # if defined(USE_FGETPOS64)
2866 # define fgetpos fgetpos64
2868 # if defined(USE_TMPFILE64)
2869 # define tmpfile tmpfile64
2871 # if defined(USE_FREOPEN64)
2872 # define freopen freopen64
2877 # include "iperlsys.h"
2882 # include "os2ish.h"
2884 # include "dosish.h"
2887 # include "vmsish.h"
2888 #elif defined(PLAN9)
2889 # include "./plan9/plan9ish.h"
2890 #elif defined(__VOS__)
2892 # include "./vos/vosish.h"
2894 # include "vos/vosish.h"
2896 #elif defined(__HAIKU__)
2897 # include "haiku/haikuish.h"
2899 # include "unixish.h"
2903 # include "amigaos.h"
2904 # undef FD_CLOEXEC /* a lie in AmigaOS */
2907 /* NSIG logic from Configure --> */
2910 # define NSIG (_NSIG)
2911 # elif defined(SIGMAX)
2912 # define NSIG (SIGMAX+1)
2913 # elif defined(SIG_MAX)
2914 # define NSIG (SIG_MAX+1)
2915 # elif defined(_SIG_MAX)
2916 # define NSIG (_SIG_MAX+1)
2917 # elif defined(MAXSIG)
2918 # define NSIG (MAXSIG+1)
2919 # elif defined(MAX_SIG)
2920 # define NSIG (MAX_SIG+1)
2921 # elif defined(SIGARRAYSIZE)
2922 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2923 # elif defined(_sys_nsig)
2924 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2926 /* Default to some arbitrary number that's big enough to get most
2927 * of the common signals. */
2931 /* <-- NSIG logic from Configure */
2933 #ifndef NO_ENVIRON_ARRAY
2934 # define USE_ENVIRON_ARRAY
2938 /* On some platforms it would be safe to use a read/write mutex with many
2939 * readers possible at the same time. On other platforms, notably IBM ones,
2940 * subsequent getenv calls destroy earlier ones. Those platforms would not
2941 * be able to handle simultaneous getenv calls */
2942 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2943 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2944 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2945 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2947 # define ENV_LOCK NOOP;
2948 # define ENV_UNLOCK NOOP;
2949 # define ENV_INIT NOOP;
2950 # define ENV_TERM NOOP;
2953 /* Some critical sections need to lock both the locale and the environment.
2954 * XXX khw intends to change this to lock both mutexes, but that brings up
2955 * issues of potential deadlock, so should be done at the beginning of a
2956 * development cycle. So for now, it just locks the environment. Note that
2957 * many modern platforms are locale-thread-safe anyway, so locking the locale
2958 * mutex is a no-op anyway */
2959 #define ENV_LOCALE_LOCK ENV_LOCK
2960 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2962 /* And some critical sections care only that no one else is writing either the
2963 * locale nor the environment. XXX Again this is for the future. This can be
2964 * simulated with using COND_WAIT in thread.h */
2965 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2966 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2968 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2969 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2970 * signal handlers. But the perl core itself only fully supports 1-arg
2971 * handlers, so don't enable for now.
2972 * NB: POSIX::sigaction() supports both.
2974 * # define PERL_USE_3ARG_SIGHANDLER
2979 * This is an alias for the OS's siginfo_t, except that where the OS
2980 * doesn't support it, declare a dummy version instead. This allows us to
2981 * have signal handler functions which always have a Siginfo_t parameter
2982 * regardless of platform, (and which will just be passed a NULL value
2983 * where the OS doesn't support HAS_SIGACTION).
2986 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2987 typedef siginfo_t Siginfo_t;
2989 #ifdef si_signo /* minix */
2999 * initialise to avoid floating-point exceptions from overflow, etc
3001 #ifndef PERL_FPU_INIT
3002 # ifdef HAS_FPSETMASK
3003 # if HAS_FLOATINGPOINT_H
3004 # include <floatingpoint.h>
3006 /* Some operating systems have this as a macro, which in turn expands to a comma
3007 expression, and the last sub-expression is something that gets calculated,
3008 and then they have the gall to warn that a value computed is not used. Hence
3010 # define PERL_FPU_INIT (void)fpsetmask(0)
3011 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3012 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3013 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3014 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3016 # define PERL_FPU_INIT
3019 #ifndef PERL_FPU_PRE_EXEC
3020 # define PERL_FPU_PRE_EXEC {
3021 # define PERL_FPU_POST_EXEC }
3024 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3025 * We need to reenable the "invalid" trap because otherwise generation
3026 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3027 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3029 # include <machine/fpu.h>
3030 # define PERL_SYS_FPU_INIT \
3032 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3033 signal(SIGFPE, SIG_IGN); \
3036 /* In IRIX the default for Flush to Zero bit is true,
3037 * which means that results going below the minimum of normal
3038 * floating points go to zero, instead of going denormal/subnormal.
3039 * This is unlike almost any other system running Perl, so let's clear it.
3040 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3041 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3043 * XXX The flush-to-zero behaviour should be a Configure scan.
3044 * To change the behaviour usually requires some system-specific
3045 * incantation, though, like the below. */
3047 # include <sys/fpu.h>
3048 # define PERL_SYS_FPU_INIT \
3050 union fpc_csr csr; \
3051 csr.fc_word = get_fpc_csr(); \
3052 csr.fc_struct.flush = 0; \
3053 set_fpc_csr(csr.fc_word); \
3057 #ifndef PERL_SYS_FPU_INIT
3058 # define PERL_SYS_FPU_INIT NOOP
3061 #ifndef PERL_SYS_INIT3_BODY
3062 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3066 =for apidoc_section Embedding and Interpreter Cloning
3068 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3069 Provides system-specific tune up of the C runtime environment necessary to
3070 run Perl interpreters. This should be called only once, before creating
3071 any Perl interpreters.
3073 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3074 Provides system-specific tune up of the C runtime environment necessary to
3075 run Perl interpreters. This should be called only once, before creating
3076 any Perl interpreters.
3078 =for apidoc Am|void|PERL_SYS_TERM|
3079 Provides system-specific clean up of the C runtime environment after
3080 running Perl interpreters. This should be called only once, after
3081 freeing any remaining Perl interpreters.
3086 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3087 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3088 #define PERL_SYS_TERM() Perl_sys_term()
3090 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3091 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3096 # ifdef _POSIX_PATH_MAX
3097 # if PATH_MAX > _POSIX_PATH_MAX
3098 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3099 * included the null byte or not. Later amendments of POSIX,
3100 * XPG4, the Austin Group, and the Single UNIX Specification
3101 * all explicitly include the null byte in the PATH_MAX.
3102 * Ditto for _POSIX_PATH_MAX. */
3103 # define MAXPATHLEN PATH_MAX
3105 # define MAXPATHLEN _POSIX_PATH_MAX
3108 # define MAXPATHLEN (PATH_MAX+1)
3111 # define MAXPATHLEN 1024 /* Err on the large side. */
3115 /* clang Thread Safety Analysis/Annotations/Attributes
3116 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3118 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3119 * Apple XCode hijacks __clang_major__ and __clang_minor__
3120 * (6.1 means really clang 3.6), so needs extra hijinks
3121 * (could probably also test the contents of __apple_build_version__).
3123 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3124 defined(__clang__) && \
3126 ((!defined(__apple_build_version__) && \
3127 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3128 (__clang_major__ >= 4))) || \
3129 (defined(__apple_build_version__) && \
3130 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3131 (__clang_major__ >= 7))))
3132 # define PERL_TSA__(x) __attribute__((x))
3133 # define PERL_TSA_ACTIVE
3135 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3136 # undef PERL_TSA_ACTIVE
3139 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3140 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3142 #define PERL_TSA_CAPABILITY(x) \
3143 PERL_TSA__(capability(x))
3145 /* In the below examples the mutex must be lexically visible, usually
3146 * either as global variables, or as function arguments. */
3148 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3150 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3152 #define PERL_TSA_GUARDED_BY(x) \
3153 PERL_TSA__(guarded_by(x))
3155 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3156 * The data _behind_ the pointer is guarded.
3158 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3160 #define PERL_TSA_PT_GUARDED_BY(x) \
3161 PERL_TSA__(pt_guarded_by(x))
3163 /* PERL_TSA_REQUIRES() is used to annotate functions.
3164 * The caller MUST hold the resource when calling the function.
3166 * void Foo() PERL_TSA_REQUIRES(mutex);
3168 #define PERL_TSA_REQUIRES(x) \
3169 PERL_TSA__(requires_capability(x))
3171 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3172 * The caller MUST NOT hold resource when calling the function.
3174 * EXCLUDES should be used when the function first acquires
3175 * the resource and then releases it. Use to avoid deadlock.
3177 * void Foo() PERL_TSA_EXCLUDES(mutex);
3179 #define PERL_TSA_EXCLUDES(x) \
3180 PERL_TSA__(locks_excluded(x))
3182 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3183 * The caller MUST NOT hold the resource when calling the function,
3184 * and the function will acquire the resource.
3186 * void Foo() PERL_TSA_ACQUIRE(mutex);
3188 #define PERL_TSA_ACQUIRE(x) \
3189 PERL_TSA__(acquire_capability(x))
3191 /* PERL_TSA_RELEASE() is used to annotate functions.
3192 * The caller MUST hold the resource when calling the function,
3193 * and the function will release the resource.
3195 * void Foo() PERL_TSA_RELEASE(mutex);
3197 #define PERL_TSA_RELEASE(x) \
3198 PERL_TSA__(release_capability(x))
3200 /* PERL_TSA_NO_TSA is used to annotate functions.
3201 * Used when being intentionally unsafe, or when the code is too
3202 * complicated for the analysis. Use sparingly.
3204 * void Foo() PERL_TSA_NO_TSA;
3206 #define PERL_TSA_NO_TSA \
3207 PERL_TSA__(no_thread_safety_analysis)
3209 /* There are more annotations/attributes available, see the clang
3210 * documentation for details. */
3212 #if defined(USE_ITHREADS)
3214 # include <nw5thread.h>
3215 # elif defined(WIN32)
3216 # include <win32thread.h>
3218 # include "os2thread.h"
3219 # elif defined(I_MACH_CTHREADS)
3220 # include <mach/cthreads.h>
3221 typedef cthread_t perl_os_thread;
3222 typedef mutex_t perl_mutex;
3223 typedef condition_t perl_cond;
3224 typedef void * perl_key;
3225 # elif defined(I_PTHREAD) /* Posix threads */
3226 # include <pthread.h>
3227 typedef pthread_t perl_os_thread;
3228 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3229 typedef pthread_cond_t perl_cond;
3230 typedef pthread_key_t perl_key;
3232 #endif /* USE_ITHREADS */
3234 #ifdef PERL_TSA_ACTIVE
3235 /* Since most pthread mutex interfaces have not been annotated, we
3236 * need to have these wrappers. The NO_TSA annotation is quite ugly
3237 * but it cannot be avoided in plain C, unlike in C++, where one could
3238 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3240 * The bodies of these wrappers are in util.c
3242 * TODO: however, some platforms are starting to get these clang
3243 * thread safety annotations for pthreads, for example FreeBSD.
3244 * Do we need a way to a bypass these wrappers? */
3245 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3246 PERL_TSA_ACQUIRE(*mutex)
3248 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3249 PERL_TSA_RELEASE(*mutex)
3258 # include "netware.h"
3261 #define STATUS_UNIX PL_statusvalue
3263 # define STATUS_NATIVE PL_statusvalue_vms
3265 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3266 * its contents can not be trusted. Unfortunately, Perl seems to check
3267 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3270 # include <stsdef.h>
3272 /* Presume this because if VMS changes it, it will require a new
3273 * set of APIs for waiting on children for binary compatibility.
3275 # define child_offset_bits (8)
3276 # ifndef C_FAC_POSIX
3277 # define C_FAC_POSIX 0x35A000
3280 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3281 * platform from the existing UNIX or Native status values.
3284 # define STATUS_EXIT \
3285 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3286 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3289 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3290 * exit code and shifts the UNIX value over the correct number of bits to
3291 * be a child status. Usually the number of bits is 8, but that could be
3292 * platform dependent. The NATIVE status code is presumed to have either
3293 * from a child process.
3296 /* This is complicated. The child processes return a true native VMS
3297 status which must be saved. But there is an assumption in Perl that
3298 the UNIX child status has some relationship to errno values, so
3299 Perl tries to translate it to text in some of the tests.
3300 In order to get the string translation correct, for the error, errno
3301 must be EVMSERR, but that generates a different text message
3302 than what the test programs are expecting. So an errno value must
3303 be derived from the native status value when an error occurs.
3304 That will hide the true native status message. With this version of
3305 perl, the true native child status can always be retrieved so that
3306 is not a problem. But in this case, Pl_statusvalue and errno may
3307 have different values in them.
3310 # define STATUS_NATIVE_CHILD_SET(n) \
3312 I32 evalue = (I32)n; \
3313 if (evalue == EVMSERR) { \
3314 PL_statusvalue_vms = vaxc$errno; \
3315 PL_statusvalue = evalue; \
3317 PL_statusvalue_vms = evalue; \
3318 if (evalue == -1) { \
3319 PL_statusvalue = -1; \
3320 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3322 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3323 set_vaxc_errno(evalue); \
3324 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3325 set_errno(EVMSERR); \
3326 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3327 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3331 # ifdef VMSISH_STATUS
3332 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3334 # define STATUS_CURRENT STATUS_UNIX
3337 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3338 * the NATIVE status to an equivalent value. Can not be used to translate
3339 * exit code values as exit code values are not guaranteed to have any
3340 * relationship at all to errno values.
3341 * This is used when Perl is forcing errno to have a specific value.
3343 # define STATUS_UNIX_SET(n) \
3345 I32 evalue = (I32)n; \
3346 PL_statusvalue = evalue; \
3347 if (PL_statusvalue != -1) { \
3348 if (PL_statusvalue != EVMSERR) { \
3349 PL_statusvalue &= 0xFFFF; \
3350 if (MY_POSIX_EXIT) \
3351 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3352 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3355 PL_statusvalue_vms = vaxc$errno; \
3358 else PL_statusvalue_vms = SS$_ABORT; \
3359 set_vaxc_errno(PL_statusvalue_vms); \
3362 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3363 * the NATIVE error status based on it.
3365 * When in the default mode to comply with the Perl VMS documentation,
3366 * 0 is a success and any other code sets the NATIVE status to a failure
3367 * code of SS$_ABORT.
3369 * In the new POSIX EXIT mode, native status will be set so that the
3370 * actual exit code will can be retrieved by the calling program or
3373 * If the exit code is not clearly a UNIX parent or child exit status,
3374 * it will be passed through as a VMS status.
3377 # define STATUS_UNIX_EXIT_SET(n) \
3379 I32 evalue = (I32)n; \
3380 PL_statusvalue = evalue; \
3381 if (MY_POSIX_EXIT) { \
3382 if (evalue <= 0xFF00) { \
3383 if (evalue > 0xFF) \
3384 evalue = (evalue >> child_offset_bits) & 0xFF; \
3385 PL_statusvalue_vms = \
3386 (C_FAC_POSIX | (evalue << 3 ) | \
3387 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3388 } else /* forgive them Perl, for they have sinned */ \
3389 PL_statusvalue_vms = evalue; \
3392 PL_statusvalue_vms = SS$_NORMAL; \
3393 else if (evalue <= 0xFF00) \
3394 PL_statusvalue_vms = SS$_ABORT; \
3395 else { /* forgive them Perl, for they have sinned */ \
3396 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3397 else PL_statusvalue_vms = vaxc$errno; \
3398 /* And obviously used a VMS status value instead of UNIX */ \
3399 PL_statusvalue = EVMSERR; \
3401 set_vaxc_errno(PL_statusvalue_vms); \
3406 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3407 * and sets the NATIVE error status based on it. This special case
3408 * is needed to maintain compatibility with past VMS behavior.
3410 * In the default mode on VMS, this number is passed through as
3411 * both the NATIVE and UNIX status. Which makes it different
3412 * that the STATUS_UNIX_EXIT_SET.
3414 * In the new POSIX EXIT mode, native status will be set so that the
3415 * actual exit code will can be retrieved by the calling program or
3418 * A POSIX exit code is from 0 to 255. If the exit code is higher
3419 * than this, it needs to be assumed that it is a VMS exit code and
3423 # define STATUS_EXIT_SET(n) \
3425 I32 evalue = (I32)n; \
3426 PL_statusvalue = evalue; \
3427 if (MY_POSIX_EXIT) \
3428 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3429 PL_statusvalue_vms = \
3430 (C_FAC_POSIX | (evalue << 3 ) | \
3431 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3433 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3434 set_vaxc_errno(PL_statusvalue_vms); \
3438 /* This macro forces a success status */
3439 # define STATUS_ALL_SUCCESS \
3440 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3442 /* This macro forces a failure status */
3443 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3444 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3445 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3447 #elif defined(__amigaos4__)
3448 /* A somewhat experimental attempt to simulate posix return code values */
3449 # define STATUS_NATIVE PL_statusvalue_posix
3450 # define STATUS_NATIVE_CHILD_SET(n) \
3452 PL_statusvalue_posix = (n); \
3453 if (PL_statusvalue_posix < 0) { \
3454 PL_statusvalue = -1; \
3457 PL_statusvalue = n << 8; \
3460 # define STATUS_UNIX_SET(n) \
3462 PL_statusvalue = (n); \
3463 if (PL_statusvalue != -1) \
3464 PL_statusvalue &= 0xFFFF; \
3466 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3467 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3468 # define STATUS_CURRENT STATUS_UNIX
3469 # define STATUS_EXIT STATUS_UNIX
3470 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3471 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3474 # define STATUS_NATIVE PL_statusvalue_posix
3475 # if defined(WCOREDUMP)
3476 # define STATUS_NATIVE_CHILD_SET(n) \
3478 PL_statusvalue_posix = (n); \
3479 if (PL_statusvalue_posix == -1) \
3480 PL_statusvalue = -1; \
3483 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3484 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3485 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3488 # elif defined(WIFEXITED)
3489 # define STATUS_NATIVE_CHILD_SET(n) \
3491 PL_statusvalue_posix = (n); \
3492 if (PL_statusvalue_posix == -1) \
3493 PL_statusvalue = -1; \
3496 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3497 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3501 # define STATUS_NATIVE_CHILD_SET(n) \
3503 PL_statusvalue_posix = (n); \
3504 if (PL_statusvalue_posix == -1) \
3505 PL_statusvalue = -1; \
3508 PL_statusvalue_posix & 0xFFFF; \
3512 # define STATUS_UNIX_SET(n) \
3514 PL_statusvalue = (n); \
3515 if (PL_statusvalue != -1) \
3516 PL_statusvalue &= 0xFFFF; \
3518 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3519 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3520 # define STATUS_CURRENT STATUS_UNIX
3521 # define STATUS_EXIT STATUS_UNIX
3522 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3523 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3526 /* flags in PL_exit_flags for nature of exit() */
3527 #define PERL_EXIT_EXPECTED 0x01
3528 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3529 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3530 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3533 /* format to use for version numbers in file/directory names */
3534 /* XXX move to Configure? */
3535 /* This was only ever used for the current version, and that can be done at
3536 compile time, as PERL_FS_VERSION, so should we just delete it? */
3537 # ifndef PERL_FS_VER_FMT
3538 # define PERL_FS_VER_FMT "%d.%d.%d"
3542 #ifndef PERL_FS_VERSION
3543 # define PERL_FS_VERSION PERL_VERSION_STRING
3546 /* This defines a way to flush all output buffers. This may be a
3547 * performance issue, so we allow people to disable it. Also, if
3548 * we are using stdio, there are broken implementations of fflush(NULL)
3549 * out there, Solaris being the most prominent.
3551 #ifndef PERL_FLUSHALL_FOR_CHILD
3552 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3553 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3554 # elif defined(FFLUSH_ALL)
3555 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3557 # define PERL_FLUSHALL_FOR_CHILD NOOP
3561 #ifndef PERL_WAIT_FOR_CHILDREN
3562 # define PERL_WAIT_FOR_CHILDREN NOOP
3565 /* the traditional thread-unsafe notion of "current interpreter". */
3566 #ifndef PERL_SET_INTERP
3567 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3570 #ifndef PERL_GET_INTERP
3571 # define PERL_GET_INTERP (PL_curinterp)
3574 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3575 # ifdef MULTIPLICITY
3576 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3578 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3582 This replaces the previous %_ "hack" by the "%p" hacks.
3583 All that is required is that the perl source does not
3584 use "%-p" or "%-<number>p" or "%<number>p" formats.
3585 These formats will still work in perl code.
3586 See comments in sv.c for further details.
3588 Robin Barker 2005-07-14
3590 No longer use %1p for VDf = %vd. RMB 2007-10-19
3594 # define SVf_(n) "-" STRINGIFY(n) "p"
3602 # define SVf32 SVf_(32)
3606 # define SVf256 SVf_(256)
3609 #define SVfARG(p) ((void*)(p))
3615 /* Not ideal, but we cannot easily include a number in an already-numeric
3616 * format sequence. */
3618 # define HEKf256 "3p"
3621 #define HEKfARG(p) ((void*)(p))
3623 /* Documented in perlguts
3625 * %4p is a custom format
3628 # define UTF8f "d%" UVuf "%4p"
3630 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3633 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3636 /* not used; but needed for backward compatibility with XS code? - RMB */
3642 #if !defined(DEBUGGING) && !defined(NDEBUG)
3647 /* For functions that are marked as __attribute__noreturn__, it's not
3648 appropriate to call return. In either case, include the lint directive.
3650 #ifdef HASATTRIBUTE_NORETURN
3651 # define NORETURN_FUNCTION_END NOT_REACHED;
3653 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3656 #ifdef HAS_BUILTIN_EXPECT
3657 # define EXPECT(expr,val) __builtin_expect(expr,val)
3659 # define EXPECT(expr,val) (expr)
3663 =for apidoc_section Compiler directives
3665 =for apidoc Am||LIKELY|bool expr
3667 Returns the input unchanged, but at the same time it gives a branch prediction
3668 hint to the compiler that this condition is likely to be true.
3670 =for apidoc Am||UNLIKELY|bool expr
3672 Returns the input unchanged, but at the same time it gives a branch prediction
3673 hint to the compiler that this condition is likely to be false.
3677 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3678 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3680 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3684 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3685 time invariants. That is, their argument must be a constant expression that
3686 can be verified by the compiler. This expression can contain anything that's
3687 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3688 the expression evaluates to 0, compilation fails.
3689 Because they generate no runtime code (i.e. their use is "free"), they're
3690 always active, even under non-DEBUGGING builds.
3691 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3692 file scope (outside of any function).
3693 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3696 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3697 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3698 || (__STDC_VERSION__ - 0) >= 201101L)) \
3699 || (defined(__cplusplus) && __cplusplus >= 201103L))
3700 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3701 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3702 matter what <assert.h> says.
3704 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3706 /* We use a bit-field instead of an array because gcc accepts
3707 'typedef char x[n]' where n is not a compile-time constant.
3708 We want to enforce constantness.
3710 # define STATIC_ASSERT_2(COND, SUFFIX) \
3712 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3713 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3714 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3715 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3717 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3718 error (static_assert is a declaration, and only statements can have labels).
3720 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3722 #ifndef __has_builtin
3723 # define __has_builtin(x) 0 /* not a clang style compiler */
3726 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3727 hint to a compiler about a statement of fact in a function call free
3728 expression, which allows the compiler to generate better machine code.
3729 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3730 the control path is unreachable. In a for loop, ASSUME can be used to hint
3731 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3732 intrinsic function, see its documents for more details.
3736 # if __has_builtin(__builtin_unreachable) \
3737 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3738 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3739 # elif defined(_MSC_VER)
3740 # define ASSUME(x) __assume(x)
3741 # elif defined(__ARMCC_VERSION) /* untested */
3742 # define ASSUME(x) __promise(x)
3744 /* a random compiler might define assert to its own special optimization token
3745 so pass it through to C lib as a last resort */
3746 # define ASSUME(x) assert(x)
3749 # define ASSUME(x) assert(x)
3752 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3753 # define NOT_REACHED
3754 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3755 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3756 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3758 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3761 /* Some unistd.h's give a prototype for pause() even though
3762 HAS_PAUSE ends up undefined. This causes the #define
3763 below to be rejected by the compiler. Sigh.
3768 #define Pause() sleep((32767<<16)+32767)
3772 # ifdef IOCPARM_MASK
3773 /* on BSDish systems we're safe */
3774 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3775 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3776 /* on Linux systems we're safe; except when we're not [perl #38223] */
3777 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3779 /* otherwise guess at what's safe */
3780 # define IOCPARM_LEN(x) 256
3784 #if defined(__CYGWIN__)
3786 * This symbol, if defined, indicates that the program should
3787 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3788 * that a file is in "binary" mode -- that is, that no translation
3789 * of bytes occurs on read or write operations.
3791 # define USEMYBINMODE /**/
3792 # include <io.h> /* for setmode() prototype */
3793 # define my_binmode(fp, iotype, mode) \
3794 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3798 void init_os_extras(void);
3801 #ifdef UNION_ANY_DEFINITION
3802 UNION_ANY_DEFINITION;
3820 void (*any_dptr) (void*);
3821 void (*any_dxptr) (pTHX_ void*);
3825 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3827 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3828 #define FILTER_DATA(idx) \
3829 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3830 #define FILTER_ISREADER(idx) \
3831 (PL_parser && PL_parser->rsfp_filters \
3832 && idx >= AvFILLp(PL_parser->rsfp_filters))
3833 #define PERL_FILTER_EXISTS(i) \
3834 (PL_parser && PL_parser->rsfp_filters \
3835 && (i) < av_count(PL_parser->rsfp_filters))
3837 #if defined(_AIX) && !defined(_AIX43)
3838 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3839 /* We cannot include <crypt.h> to get the struct crypt_data
3840 * because of setkey prototype problems when threading */
3841 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3842 /* From OSF, Not needed in AIX
3850 #endif /* threading */
3853 #ifndef PERL_CALLCONV
3855 # define PERL_CALLCONV extern "C"
3857 # define PERL_CALLCONV
3860 #ifndef PERL_CALLCONV_NO_RET
3861 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3864 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3865 dont have a noreturn as a declaration specifier
3867 #ifndef PERL_STATIC_NO_RET
3868 # define PERL_STATIC_NO_RET STATIC
3870 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3871 builds that dont have a noreturn as a declaration specifier
3873 #ifndef PERL_STATIC_INLINE_NO_RET
3874 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3877 #ifndef PERL_STATIC_FORCE_INLINE
3878 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3881 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3882 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3886 # include "iperlsys.h"
3889 #ifdef __LIBCATAMOUNT__
3890 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3892 #define FAKE_BIT_BUCKET
3895 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3896 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3897 * Configure, despite their names being similar to other defines like
3898 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3899 * hashes. Therefore to enable/disable the hash randomisation defines
3900 * use the Configure -Accflags=... instead. */
3901 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3902 # define USE_HASH_SEED
3908 /* macros to define bit-fields in structs. */
3909 #ifndef PERL_BITFIELD8
3910 # define PERL_BITFIELD8 U8
3912 #ifndef PERL_BITFIELD16
3913 # define PERL_BITFIELD16 U16
3915 #ifndef PERL_BITFIELD32
3916 # define PERL_BITFIELD32 U32
3926 #include "opnames.h"
3933 #include "warnings.h"
3936 /* these would be in doio.h if there was such a file */
3937 #define my_stat() my_stat_flags(SV_GMAGIC)
3938 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3940 /* defined in sv.c, but also used in [ach]v.c */
3943 #undef _XPVCV_COMMON
3947 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3949 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3951 /* These have to be predeclared, as they are used in proto.h which is #included
3952 * before their definitions in regcomp.h. */
3955 typedef struct regnode_charclass regnode_charclass;
3957 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3958 * used under /l matching */
3959 typedef struct regnode_charclass_posixl regnode_charclass_class;
3960 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3962 typedef struct regnode_ssc regnode_ssc;
3963 typedef struct RExC_state_t RExC_state_t;
3964 struct _reg_trie_data;
3968 struct ptr_tbl_ent {
3969 struct ptr_tbl_ent* next;
3975 struct ptr_tbl_ent** tbl_ary;
3978 struct ptr_tbl_arena *tbl_arena;
3979 struct ptr_tbl_ent *tbl_arena_next;
3980 struct ptr_tbl_ent *tbl_arena_end;
3983 #if defined(htonl) && !defined(HAS_HTONL)
3986 #if defined(htons) && !defined(HAS_HTONS)
3989 #if defined(ntohl) && !defined(HAS_NTOHL)
3992 #if defined(ntohs) && !defined(HAS_NTOHS)
4000 # if (BYTEORDER & 0xffff) == 0x4321
4001 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4002 re-order their values. However, to behave identically to the alternative
4003 implementations, they should truncate to the correct size. */
4004 # define ntohl(x) ((x)&0xFFFFFFFF)
4005 # define htonl(x) ntohl(x)
4006 # define ntohs(x) ((x)&0xFFFF)
4007 # define htons(x) ntohs(x)
4008 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4010 /* Note that we can't straight out declare our own htonl and htons because
4011 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4012 to avoid the overhead of initialising the socket subsystem, but the headers
4013 that *declare* the various functions are still seen. If we declare our own
4014 htonl etc they will clash with the declarations in the Win32 headers. */
4016 PERL_STATIC_INLINE U32
4017 my_swap32(const U32 x) {
4018 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4019 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4022 PERL_STATIC_INLINE U16
4023 my_swap16(const U16 x) {
4024 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4027 # define htonl(x) my_swap32(x)
4028 # define ntohl(x) my_swap32(x)
4029 # define ntohs(x) my_swap16(x)
4030 # define htons(x) my_swap16(x)
4032 # error "Unsupported byteorder"
4033 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4034 the error message. Please check the value of the macro BYTEORDER, as defined
4035 in config.h. The values of BYTEORDER we expect are
4037 big endian little endian
4038 32 bit 0x4321 0x1234
4039 64 bit 0x87654321 0x12345678
4041 If you have a system with a different byte order, please see
4042 pod/perlhack.pod for how to submit a patch to add supporting code.
4048 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4051 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4052 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4053 re-order their values. However, to behave identically to the alternative
4054 implementations, they should truncate to the correct size. */
4055 # define vtohl(x) ((x)&0xFFFFFFFF)
4056 # define vtohs(x) ((x)&0xFFFF)
4057 # define htovl(x) vtohl(x)
4058 # define htovs(x) vtohs(x)
4059 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4060 # define vtohl(x) ((((x)&0xFF)<<24) \
4062 +(((x)&0x0000FF00)<<8) \
4063 +(((x)&0x00FF0000)>>8) )
4064 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4065 # define htovl(x) vtohl(x)
4066 # define htovs(x) vtohs(x)
4068 # error "Unsupported byteorder"
4069 /* If you have need for current perl on PDP-11 or similar, and can help test
4070 that blead keeps working on a mixed-endian system, then see
4071 pod/perlhack.pod for how to submit patches to things working again. */
4074 /* *MAX Plus 1. A floating point value.
4075 Hopefully expressed in a way that dodgy floating point can't mess up.
4076 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4078 May find that some broken compiler will want the value cast to I32.
4079 [after the shift, as signed >> may not be as secure as unsigned >>]
4081 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4082 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4083 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4084 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4085 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4087 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4089 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4090 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4091 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4093 /* This may look like unnecessary jumping through hoops, but converting
4094 out of range floating point values to integers *is* undefined behaviour,
4095 and it is starting to bite.
4098 #define I_32(what) (cast_i32((NV)(what)))
4099 #define U_32(what) (cast_ulong((NV)(what)))
4100 #define I_V(what) (cast_iv((NV)(what)))
4101 #define U_V(what) (cast_uv((NV)(what)))
4103 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4104 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4105 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4106 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4107 : ((n) < U32_MAX_P1 ? (U32) (n) \
4108 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4109 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4110 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4111 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4112 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4113 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4114 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4117 #define U_S(what) ((U16)U_32(what))
4118 #define U_I(what) ((unsigned int)U_32(what))
4119 #define U_L(what) U_32(what)
4122 # ifndef Perl_signbit
4123 # define Perl_signbit signbit
4127 /* These do not care about the fractional part, only about the range. */
4128 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4129 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4131 /* Used with UV/IV arguments: */
4132 /* XXXX: need to speed it up */
4133 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4134 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4142 Uid_t getuid (void);
4143 Uid_t geteuid (void);
4144 Gid_t getgid (void);
4145 Gid_t getegid (void);
4149 #ifndef Perl_debug_log
4150 # define Perl_debug_log PerlIO_stderr()
4153 #ifndef Perl_error_log
4154 # define Perl_error_log (PL_stderrgv \
4155 && isGV(PL_stderrgv) \
4156 && GvIOp(PL_stderrgv) \
4157 && IoOFP(GvIOp(PL_stderrgv)) \
4158 ? IoOFP(GvIOp(PL_stderrgv)) \
4163 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4164 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4165 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4166 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4167 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4168 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4169 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4170 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4171 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4172 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4173 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4174 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4175 /* U is reserved for Unofficial, exploratory hacking */
4176 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4178 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4179 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4180 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4181 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4182 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4183 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4184 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4185 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4186 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4187 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4188 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4189 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4190 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4191 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4192 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4193 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4195 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4196 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4198 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4199 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4200 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4201 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4202 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4203 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4204 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4205 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4206 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4207 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4208 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4209 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4210 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4211 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4212 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4213 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4214 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4215 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4216 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4217 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4218 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4219 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4220 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4221 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4222 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4223 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4224 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4225 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4226 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4227 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4228 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4229 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4230 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4234 # define DEBUG_p_TEST DEBUG_p_TEST_
4235 # define DEBUG_s_TEST DEBUG_s_TEST_
4236 # define DEBUG_l_TEST DEBUG_l_TEST_
4237 # define DEBUG_t_TEST DEBUG_t_TEST_
4238 # define DEBUG_o_TEST DEBUG_o_TEST_
4239 # define DEBUG_c_TEST DEBUG_c_TEST_
4240 # define DEBUG_P_TEST DEBUG_P_TEST_
4241 # define DEBUG_m_TEST DEBUG_m_TEST_
4242 # define DEBUG_f_TEST DEBUG_f_TEST_
4243 # define DEBUG_r_TEST DEBUG_r_TEST_
4244 # define DEBUG_x_TEST DEBUG_x_TEST_
4245 # define DEBUG_u_TEST DEBUG_u_TEST_
4246 # define DEBUG_U_TEST DEBUG_U_TEST_
4247 # define DEBUG_X_TEST DEBUG_X_TEST_
4248 # define DEBUG_D_TEST DEBUG_D_TEST_
4249 # define DEBUG_S_TEST DEBUG_S_TEST_
4250 # define DEBUG_T_TEST DEBUG_T_TEST_
4251 # define DEBUG_R_TEST DEBUG_R_TEST_
4252 # define DEBUG_J_TEST DEBUG_J_TEST_
4253 # define DEBUG_v_TEST DEBUG_v_TEST_
4254 # define DEBUG_C_TEST DEBUG_C_TEST_
4255 # define DEBUG_A_TEST DEBUG_A_TEST_
4256 # define DEBUG_q_TEST DEBUG_q_TEST_
4257 # define DEBUG_M_TEST DEBUG_M_TEST_
4258 # define DEBUG_B_TEST DEBUG_B_TEST_
4259 # define DEBUG_L_TEST DEBUG_L_TEST_
4260 # define DEBUG_i_TEST DEBUG_i_TEST_
4261 # define DEBUG_y_TEST DEBUG_y_TEST_
4262 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4263 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4264 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4265 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4266 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4268 # define PERL_DEB(a) a
4269 # define PERL_DEB2(a,b) a
4270 # define PERL_DEBUG(a) if (PL_debug) a
4271 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4272 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4273 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4274 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4275 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4276 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4277 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4279 /* Temporarily turn off memory debugging in case the a
4280 * does memory allocation, either directly or indirectly. */
4281 # define DEBUG_m(a) \
4283 if (PERL_GET_INTERP) { \
4285 if (DEBUG_m_TEST) { \
4286 PL_debug &= ~DEBUG_m_FLAG; \
4288 PL_debug |= DEBUG_m_FLAG; \
4293 # define DEBUG__(t, a) \
4295 if (t) STMT_START {a;} STMT_END; \
4298 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4300 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4301 # ifdef PERL_EXT_RE_BUILD
4302 # define DEBUG_r(a) STMT_START {a;} STMT_END
4304 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4305 # endif /* PERL_EXT_RE_BUILD */
4307 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4308 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4309 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4310 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4311 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4312 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4313 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4314 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4315 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4316 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4318 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4319 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4320 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4321 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4322 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4323 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4324 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4325 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4326 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4327 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4328 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4329 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4331 #else /* ! DEBUGGING below */
4333 # define DEBUG_p_TEST (0)
4334 # define DEBUG_s_TEST (0)
4335 # define DEBUG_l_TEST (0)
4336 # define DEBUG_t_TEST (0)
4337 # define DEBUG_o_TEST (0)
4338 # define DEBUG_c_TEST (0)
4339 # define DEBUG_P_TEST (0)
4340 # define DEBUG_m_TEST (0)
4341 # define DEBUG_f_TEST (0)
4342 # define DEBUG_r_TEST (0)
4343 # define DEBUG_x_TEST (0)
4344 # define DEBUG_u_TEST (0)
4345 # define DEBUG_U_TEST (0)
4346 # define DEBUG_X_TEST (0)
4347 # define DEBUG_D_TEST (0)
4348 # define DEBUG_S_TEST (0)
4349 # define DEBUG_T_TEST (0)
4350 # define DEBUG_R_TEST (0)
4351 # define DEBUG_J_TEST (0)
4352 # define DEBUG_v_TEST (0)
4353 # define DEBUG_C_TEST (0)
4354 # define DEBUG_A_TEST (0)
4355 # define DEBUG_q_TEST (0)
4356 # define DEBUG_M_TEST (0)
4357 # define DEBUG_B_TEST (0)
4358 # define DEBUG_L_TEST (0)
4359 # define DEBUG_i_TEST (0)
4360 # define DEBUG_y_TEST (0)
4361 # define DEBUG_Xv_TEST (0)
4362 # define DEBUG_Uv_TEST (0)
4363 # define DEBUG_Pv_TEST (0)
4364 # define DEBUG_Lv_TEST (0)
4365 # define DEBUG_yv_TEST (0)
4367 # define PERL_DEB(a)
4368 # define PERL_DEB2(a,b) b
4369 # define PERL_DEBUG(a)
4397 # define DEBUG_Xv(a)
4398 # define DEBUG_Uv(a)
4399 # define DEBUG_Pv(a)
4400 # define DEBUG_Lv(a)
4401 # define DEBUG_yv(a)
4402 #endif /* DEBUGGING */
4405 #define DEBUG_SCOPE(where) \
4407 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4408 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4409 __FILE__, __LINE__));
4411 /* Keep the old croak based assert for those who want it, and as a fallback if
4412 the platform is so heretically non-ANSI that it can't assert. */
4414 #define Perl_assert(what) PERL_DEB2( \
4415 ((what) ? ((void) 0) : \
4416 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4417 "\", line %d", STRINGIFY(what), __LINE__), \
4418 (void) 0)), ((void)0))
4420 /* assert() gets defined if DEBUGGING.
4421 * If no DEBUGGING, the <assert.h> has not been included. */
4423 # define assert(what) Perl_assert(what)
4426 # define assert_(what) assert(what),
4428 # define assert_(what)
4432 I32 (*uf_val)(pTHX_ IV, SV*);
4433 I32 (*uf_set)(pTHX_ IV, SV*);
4437 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4438 * XS code wanting to be backward compatible can do something
4439 * like the following:
4441 #ifndef PERL_MG_UFUNC
4442 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4445 static PERL_MG_UFUNC(foo_get, index, val)
4455 #ifndef PERL_MG_UFUNC
4456 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4461 /* isfinite and others are here rather than in math.h as C99 stipulates */
4466 # if !defined(WIN32) && !defined(VMS)
4468 char *crypt (const char*, const char*);
4470 # endif /* !WIN32 */
4473 char *getlogin (void);
4475 # endif /* !WIN32 */
4476 #endif /* !__cplusplus */
4478 /* Fixme on VMS. This needs to be a run-time, not build time options */
4479 /* Also rename() is affected by this */
4480 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4481 #define UNLINK unlnk
4482 I32 unlnk (pTHX_ const char*);
4484 #define UNLINK PerlLIO_unlink
4487 /* some versions of glibc are missing the setresuid() proto */
4488 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4489 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4491 /* some versions of glibc are missing the setresgid() proto */
4492 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4493 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4496 #ifndef HAS_SETREUID
4497 # ifdef HAS_SETRESUID
4498 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4499 # define HAS_SETREUID
4502 #ifndef HAS_SETREGID
4503 # ifdef HAS_SETRESGID
4504 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4505 # define HAS_SETREGID
4509 /* Sighandler_t defined in iperlsys.h */
4511 #ifdef HAS_SIGACTION
4512 typedef struct sigaction Sigsave_t;
4514 typedef Sighandler_t Sigsave_t;
4525 # define RUNOPS_DEFAULT Perl_runops_debug
4527 # define RUNOPS_DEFAULT Perl_runops_standard
4530 #if defined(USE_PERLIO)
4531 EXTERN_C void PerlIO_teardown(void);
4532 # ifdef USE_ITHREADS
4533 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4534 # define PERLIO_TERM \
4536 PerlIO_teardown(); \
4537 MUTEX_DESTROY(&PL_perlio_mutex);\
4540 # define PERLIO_INIT
4541 # define PERLIO_TERM PerlIO_teardown()
4544 # define PERLIO_INIT
4545 # define PERLIO_TERM
4549 # ifdef MUTEX_INIT_CALLS_MALLOC
4550 # define MALLOC_INIT \
4552 PL_malloc_mutex = NULL; \
4553 MUTEX_INIT(&PL_malloc_mutex); \
4555 # define MALLOC_TERM \
4557 perl_mutex tmp = PL_malloc_mutex; \
4558 PL_malloc_mutex = NULL; \
4559 MUTEX_DESTROY(&tmp); \
4562 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4563 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4566 # define MALLOC_INIT
4567 # define MALLOC_TERM
4570 #if defined(PERL_IMPLICIT_CONTEXT)
4572 struct perl_memory_debug_header;
4573 struct perl_memory_debug_header {
4575 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4578 struct perl_memory_debug_header *prev;
4579 struct perl_memory_debug_header *next;
4580 # ifdef PERL_DEBUG_READONLY_COW
4585 #elif defined(PERL_DEBUG_READONLY_COW)
4587 struct perl_memory_debug_header;
4588 struct perl_memory_debug_header {
4594 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4596 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4597 (sizeof(struct perl_memory_debug_header) + \
4598 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4599 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4602 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4605 #ifdef PERL_TRACK_MEMPOOL
4606 # ifdef PERL_DEBUG_READONLY_COW
4607 # define INIT_TRACK_MEMPOOL(header, interp) \
4609 (header).interpreter = (interp); \
4610 (header).prev = (header).next = &(header); \
4611 (header).readonly = 0; \
4614 # define INIT_TRACK_MEMPOOL(header, interp) \
4616 (header).interpreter = (interp); \
4617 (header).prev = (header).next = &(header); \
4621 # define INIT_TRACK_MEMPOOL(header, interp)
4624 #ifdef I_MALLOCMALLOC
4625 /* Needed for malloc_size(), malloc_good_size() on some systems */
4626 # include <malloc/malloc.h>
4630 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4632 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4633 # ifdef PERL_TRACK_MEMPOOL
4634 # define Perl_safesysmalloc_size(where) \
4635 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4637 # define Perl_safesysmalloc_size(where) malloc_size(where)
4640 # ifdef HAS_MALLOC_GOOD_SIZE
4641 # ifdef PERL_TRACK_MEMPOOL
4642 # define Perl_malloc_good_size(how_much) \
4643 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4645 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4648 /* Having this as the identity operation makes some code simpler. */
4649 # define Perl_malloc_good_size(how_much) (how_much)
4653 typedef int (*runops_proc_t)(pTHX);
4654 typedef void (*share_proc_t) (pTHX_ SV *sv);
4655 typedef int (*thrhook_proc_t) (pTHX);
4656 typedef OP* (*PPADDR_t[]) (pTHX);
4657 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4658 typedef void (*despatch_signals_proc_t) (pTHX);
4660 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4661 # include <crt_externs.h> /* for the env array */
4662 # define environ (*_NSGetEnviron())
4663 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4664 /* VMS and some other platforms don't use the environ array */
4665 EXTERN_C char **environ; /* environment variables supplied via exec */
4668 #define PERL_PATCHLEVEL_H_IMPLICIT
4669 #include "patchlevel.h"
4670 #undef PERL_PATCHLEVEL_H_IMPLICIT
4672 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4673 STRINGIFY(PERL_VERSION) "." \
4674 STRINGIFY(PERL_SUBVERSION)
4676 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4677 STRINGIFY(PERL_API_VERSION) "." \
4678 STRINGIFY(PERL_API_SUBVERSION)
4682 /* handy constants */
4683 EXTCONST char PL_warn_uninit[]
4684 INIT("Use of uninitialized value%s%s%s");
4685 EXTCONST char PL_warn_uninit_sv[]
4686 INIT("Use of uninitialized value%" SVf "%s%s");
4687 EXTCONST char PL_warn_nosemi[]
4688 INIT("Semicolon seems to be missing");
4689 EXTCONST char PL_warn_reserved[]
4690 INIT("Unquoted string \"%s\" may clash with future reserved word");
4691 EXTCONST char PL_warn_nl[]
4692 INIT("Unsuccessful %s on filename containing newline");
4693 EXTCONST char PL_no_wrongref[]
4694 INIT("Can't use %s ref as %s ref");
4695 /* The core no longer needs this here. If you require the string constant,
4696 please inline a copy into your own code. */
4697 EXTCONST char PL_no_symref[] __attribute__deprecated__
4698 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4699 EXTCONST char PL_no_symref_sv[]
4700 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4702 EXTCONST char PL_no_usym[]
4703 INIT("Can't use an undefined value as %s reference");
4704 EXTCONST char PL_no_aelem[]
4705 INIT("Modification of non-creatable array value attempted, subscript %d");
4706 EXTCONST char PL_no_helem_sv[]
4707 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4708 EXTCONST char PL_no_modify[]
4709 INIT("Modification of a read-only value attempted");
4710 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4711 INIT("Out of memory!\n");
4712 EXTCONST char PL_no_security[]
4713 INIT("Insecure dependency in %s%s");
4714 EXTCONST char PL_no_sock_func[]
4715 INIT("Unsupported socket function \"%s\" called");
4716 EXTCONST char PL_no_dir_func[]
4717 INIT("Unsupported directory function \"%s\" called");
4718 EXTCONST char PL_no_func[]
4719 INIT("The %s function is unimplemented");
4720 EXTCONST char PL_no_myglob[]
4721 INIT("\"%s\" %s %s can't be in a package");
4722 EXTCONST char PL_no_localize_ref[]
4723 INIT("Can't localize through a reference");
4724 EXTCONST char PL_memory_wrap[]
4725 INIT("panic: memory wrap");
4726 EXTCONST char PL_extended_cp_format[]
4727 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4728 " and so is not portable");
4729 EXTCONST char PL_Yes[]
4731 EXTCONST char PL_No[]
4733 EXTCONST char PL_Zero[]
4735 EXTCONST char PL_hexdigit[]
4736 INIT("0123456789abcdef0123456789ABCDEF");
4738 EXTCONST STRLEN PL_WARN_ALL
4740 EXTCONST STRLEN PL_WARN_NONE
4743 /* This is constant on most architectures, a global on OS/2 */
4745 EXTCONST char PL_sh_path[]
4746 INIT(SH_PATH); /* full path of shell */
4750 EXTCONST char PL_cshname[]
4752 # define PL_cshlen (sizeof(CSH "") - 1)
4755 /* These are baked at compile time into any shared perl library.
4756 In future releases this will allow us in main() to sanity test the
4757 library we're linking against. */
4759 EXTCONST U8 PL_revision
4760 INIT(PERL_REVISION);
4761 EXTCONST U8 PL_version
4763 EXTCONST U8 PL_subversion
4764 INIT(PERL_SUBVERSION);
4766 EXTCONST char PL_uuemap[65]
4767 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4769 /* a special string address whose value is "isa", but which perl knows
4770 * to treat as if it were really "DOES" when printing the method name in
4771 * the "Can't call method '%s'" error message */
4772 EXTCONST char PL_isa_DOES[]
4776 EXTCONST char PL_uudmap[256] =
4778 # include "uuudmap.h"
4780 # include "uudmap.h"
4783 EXTCONST char PL_bitcount[256] =
4785 # include "ubitcount.h"
4787 # include "bitcount.h"
4790 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4791 EXTCONST int PL_sig_num[] = { SIG_NUM };
4793 EXTCONST char PL_uudmap[256];
4794 EXTCONST char PL_bitcount[256];
4795 EXTCONST char* const PL_sig_name[];
4796 EXTCONST int PL_sig_num[];
4799 /* fast conversion and case folding tables. The folding tables complement the
4800 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4801 * folds such as outside the range or to multiple characters. */
4806 /* The EBCDIC fold table depends on the code page, and hence is found in
4807 * ebcdic_tables.h */
4809 EXTCONST unsigned char PL_fold[] = {
4810 0, 1, 2, 3, 4, 5, 6, 7,
4811 8, 9, 10, 11, 12, 13, 14, 15,
4812 16, 17, 18, 19, 20, 21, 22, 23,
4813 24, 25, 26, 27, 28, 29, 30, 31,
4814 32, 33, 34, 35, 36, 37, 38, 39,
4815 40, 41, 42, 43, 44, 45, 46, 47,
4816 48, 49, 50, 51, 52, 53, 54, 55,
4817 56, 57, 58, 59, 60, 61, 62, 63,
4818 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4819 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4820 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4821 'x', 'y', 'z', 91, 92, 93, 94, 95,
4822 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4823 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4824 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4825 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4826 128, 129, 130, 131, 132, 133, 134, 135,
4827 136, 137, 138, 139, 140, 141, 142, 143,
4828 144, 145, 146, 147, 148, 149, 150, 151,
4829 152, 153, 154, 155, 156, 157, 158, 159,
4830 160, 161, 162, 163, 164, 165, 166, 167,
4831 168, 169, 170, 171, 172, 173, 174, 175,
4832 176, 177, 178, 179, 180, 181, 182, 183,
4833 184, 185, 186, 187, 188, 189, 190, 191,
4834 192, 193, 194, 195, 196, 197, 198, 199,
4835 200, 201, 202, 203, 204, 205, 206, 207,
4836 208, 209, 210, 211, 212, 213, 214, 215,
4837 216, 217, 218, 219, 220, 221, 222, 223,
4838 224, 225, 226, 227, 228, 229, 230, 231,
4839 232, 233, 234, 235, 236, 237, 238, 239,
4840 240, 241, 242, 243, 244, 245, 246, 247,
4841 248, 249, 250, 251, 252, 253, 254, 255
4844 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4845 0, 1, 2, 3, 4, 5, 6, 7,
4846 8, 9, 10, 11, 12, 13, 14, 15,
4847 16, 17, 18, 19, 20, 21, 22, 23,
4848 24, 25, 26, 27, 28, 29, 30, 31,
4849 32, 33, 34, 35, 36, 37, 38, 39,
4850 40, 41, 42, 43, 44, 45, 46, 47,
4851 48, 49, 50, 51, 52, 53, 54, 55,
4852 56, 57, 58, 59, 60, 61, 62, 63,
4853 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4854 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4855 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4856 'x', 'y', 'z', 91, 92, 93, 94, 95,
4857 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4858 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4859 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4860 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4861 128, 129, 130, 131, 132, 133, 134, 135,
4862 136, 137, 138, 139, 140, 141, 142, 143,
4863 144, 145, 146, 147, 148, 149, 150, 151,
4864 152, 153, 154, 155, 156, 157, 158, 159,
4865 160, 161, 162, 163, 164, 165, 166, 167,
4866 168, 169, 170, 171, 172, 173, 174, 175,
4867 176, 177, 178, 179, 180, 181, 182, 183,
4868 184, 185, 186, 187, 188, 189, 190, 191,
4869 192, 193, 194, 195, 196, 197, 198, 199,
4870 200, 201, 202, 203, 204, 205, 206, 207,
4871 208, 209, 210, 211, 212, 213, 214, 215,
4872 216, 217, 218, 219, 220, 221, 222, 223,
4873 224, 225, 226, 227, 228, 229, 230, 231,
4874 232, 233, 234, 235, 236, 237, 238, 239,
4875 240, 241, 242, 243, 244, 245, 246, 247,
4876 248, 249, 250, 251, 252, 253, 254, 255
4879 EXTCONST unsigned char PL_fold_latin1[] = {
4880 /* Full latin1 complement folding, except for three problematic code points:
4881 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4882 * fold complements outside the Latin1 range, so can't match something
4883 * that isn't in utf8.
4884 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4885 * not one, so can't be represented in this table.
4887 * All have to be specially handled */
4888 0, 1, 2, 3, 4, 5, 6, 7,
4889 8, 9, 10, 11, 12, 13, 14, 15,
4890 16, 17, 18, 19, 20, 21, 22, 23,
4891 24, 25, 26, 27, 28, 29, 30, 31,
4892 32, 33, 34, 35, 36, 37, 38, 39,
4893 40, 41, 42, 43, 44, 45, 46, 47,
4894 48, 49, 50, 51, 52, 53, 54, 55,
4895 56, 57, 58, 59, 60, 61, 62, 63,
4896 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4897 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4898 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4899 'x', 'y', 'z', 91, 92, 93, 94, 95,
4900 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4901 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4902 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4903 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4904 128, 129, 130, 131, 132, 133, 134, 135,
4905 136, 137, 138, 139, 140, 141, 142, 143,
4906 144, 145, 146, 147, 148, 149, 150, 151,
4907 152, 153, 154, 155, 156, 157, 158, 159,
4908 160, 161, 162, 163, 164, 165, 166, 167,
4909 168, 169, 170, 171, 172, 173, 174, 175,
4910 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,