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
638 STMT_START { statements; } STMT_END;
640 can be used as a single statement, as in
642 if (x) STMT_START { ... } STMT_END; else ...
644 These are often used in macro definitions. Note that you can't return a value
647 =for apidoc AmnUhu|void|STMT_END
649 =for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
651 This C pre-processor value, if defined, indicates that it is permissible to use
652 the GCC brace groups extension. This extension is of the form C<({
653 I<STATEMENTS> })>, and turns the block consisting of I<STATEMENTS> into an
654 expression with a value, unlike plain C language blocks. This can present
655 optimization possibilities, but there always needs to be an alternative in case
656 this ability doesn't exist or has otherwise been forbidden.
660 Trying to select a version that gives no warnings...
662 #if !(defined(STMT_START) && defined(STMT_END))
663 # ifdef PERL_USE_GCC_BRACE_GROUPS
664 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
667 # define STMT_START do
668 # define STMT_END while (0)
672 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
673 # define BYTEORDER 0x1234
676 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
683 * The following contortions are brought to you on behalf of all the
684 * standards, semi-standards, de facto standards, not-so-de-facto standards
685 * of the world, as well as all the other botches anyone ever thought of.
686 * The basic theory is that if we work hard enough here, the rest of the
687 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
690 /* define this once if either system, instead of cluttering up the src */
691 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
695 /* These exist only for back-compat with XS modules. */
698 #define CAN_PROTOTYPE
705 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
706 * you get a perl without taint support, but doubtlessly with a lesser
707 * degree of support. Do not do so unless you know exactly what it means
708 * technically, have a good reason to do so, and know exactly how the
709 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
710 * a potential security risk due to flat out ignoring the security-relevant
711 * taint flags. This being said, a perl without taint support compiled in
712 * has marginal run-time performance benefits.
713 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
714 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
715 * silently ignores -t/-T instead of throwing an exception.
717 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
718 * voids your nonexistent warranty!
720 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
721 # define NO_TAINT_SUPPORT 1
724 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
725 * operations into no-ops for a very modest speed-up. Enable only if you
726 * know what you're doing: tests and CPAN modules' tests are bound to fail.
728 #ifdef NO_TAINT_SUPPORT
730 # define TAINT_NOT NOOP
731 # define TAINT_IF(c) NOOP
732 # define TAINT_ENV() NOOP
733 # define TAINT_PROPER(s) NOOP
734 # define TAINT_set(s) NOOP
736 # define TAINTING_get 0
737 # define TAINTING_set(s) NOOP
738 # define TAINT_WARN_get 0
739 # define TAINT_WARN_set(s) NOOP
741 /* Set to tainted if we are running under tainting mode */
742 # define TAINT (PL_tainted = PL_tainting)
744 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
745 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
746 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
747 /* croak or warn if tainting */
748 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
749 taint_proper(NULL, s); \
751 # define TAINT_set(s) (PL_tainted = (s))
752 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
753 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
754 # define TAINTING_set(s) (PL_tainting = (s))
755 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
759 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
762 /* flags used internally only within pp_subst and pp_substcont */
764 # define SUBST_TAINT_STR 1 /* string tainted */
765 # define SUBST_TAINT_PAT 2 /* pattern tainted */
766 # define SUBST_TAINT_REPL 4 /* replacement tainted */
767 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
768 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
771 /* XXX All process group stuff is handled in pp_sys.c. Should these
772 defines move there? If so, I could simplify this a lot. --AD 9/96.
774 /* Process group stuff changed from traditional BSD to POSIX.
775 perlfunc.pod documents the traditional BSD-style syntax, so we'll
776 try to preserve that, if possible.
779 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
780 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
781 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
782 #elif defined(HAS_SETPGRP2)
783 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
785 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
786 # define HAS_SETPGRP /* Well, effectively it does . . . */
789 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
790 our life easier :-) so we'll try it.
793 # define BSD_GETPGRP(pid) getpgid((pid))
794 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
795 # define BSD_GETPGRP(pid) getpgrp((pid))
796 #elif defined(HAS_GETPGRP2)
797 # define BSD_GETPGRP(pid) getpgrp2((pid))
799 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
800 # define HAS_GETPGRP /* Well, effectively it does . . . */
803 /* These are not exact synonyms, since setpgrp() and getpgrp() may
804 have different behaviors, but perl.h used to define USE_BSDPGRP
805 (prior to 5.003_05) so some extension might depend on it.
807 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
813 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
814 pthread.h must be included before all other header files.
816 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
817 # include <pthread.h>
820 #include <sys/types.h>
836 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
849 # include <xlocale.h>
852 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
853 * functions are available, or 2) just the setlocale() function. This logic is
854 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
856 #if ! defined(NO_LOCALE)
858 # if ! defined(NO_POSIX_2008_LOCALE) \
859 && defined(HAS_NEWLOCALE) \
860 && defined(HAS_USELOCALE) \
861 && defined(HAS_DUPLOCALE) \
862 && defined(HAS_FREELOCALE) \
863 && defined(LC_ALL_MASK)
865 /* For simplicity, the code is written to assume that any platform advanced
866 * enough to have the Posix 2008 locale functions has LC_ALL. The final
867 * test above makes sure that assumption is valid */
869 # define HAS_POSIX_2008_LOCALE
871 # elif defined(HAS_SETLOCALE)
877 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
879 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
880 && defined(HAS_STRXFRM)
881 # define USE_LOCALE_COLLATE
883 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
884 # define USE_LOCALE_CTYPE
886 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
887 # define USE_LOCALE_NUMERIC
889 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
890 # define USE_LOCALE_MESSAGES
892 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
893 # define USE_LOCALE_MONETARY
895 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
896 # define USE_LOCALE_TIME
898 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
899 # define USE_LOCALE_ADDRESS
901 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
902 # define USE_LOCALE_IDENTIFICATION
904 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
905 # define USE_LOCALE_MEASUREMENT
907 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
908 # define USE_LOCALE_PAPER
910 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
911 # define USE_LOCALE_TELEPHONE
913 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
914 # define USE_LOCALE_SYNTAX
916 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
917 # define USE_LOCALE_TOD
920 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
921 * changes here MUST also be made there */
923 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
924 # define USE_POSIX_2008_LOCALE
925 # ifndef USE_THREAD_SAFE_LOCALE
926 # define USE_THREAD_SAFE_LOCALE
929 * -DUSE_THREAD_SAFE_LOCALE, will do so even
930 * on unthreaded builds */
931 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
932 && ( defined(HAS_POSIX_2008_LOCALE) \
933 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
934 && ! defined(NO_THREAD_SAFE_LOCALE)
935 # ifndef USE_THREAD_SAFE_LOCALE
936 # define USE_THREAD_SAFE_LOCALE
938 # ifdef HAS_POSIX_2008_LOCALE
939 # define USE_POSIX_2008_LOCALE
944 /* Microsoft documentation reads in the change log for VS 2015:
945 * "The localeconv function declared in locale.h now works correctly when
946 * per-thread locale is enabled. In previous versions of the library, this
947 * function would return the lconv data for the global locale, not the
950 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
951 # define TS_W32_BROKEN_LOCALECONV
957 # ifdef PARAM_NEEDS_TYPES
958 # include <sys/types.h>
960 # include <sys/param.h>
963 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
964 value something like 199306. This may be useful if no more-specific
965 feature test is available.
973 /* Use all the "standard" definitions */
976 /* If this causes problems, set i_unistd=undef in the hint file. */
978 # if defined(__amigaos4__)
980 # include <netinet/in.h>
984 # if defined(__amigaos4__)
985 /* Under AmigaOS 4 newlib.library provides an environ. However using
986 * it doesn't give us enough control over inheritance of variables by
987 * subshells etc. so replace with custom version based on abc-shell
989 extern char **myenviron;
991 # define environ myenviron
997 # include <sys/wait.h>
1000 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1001 EXTERN_C int syscall(int, ...);
1004 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1005 EXTERN_C int usleep(unsigned int);
1008 /* macros for correct constant construction. These are in C99 <stdint.h>
1009 * (so they will not be available in strict C89 mode), but they are nice, so
1010 * let's define them if necessary. */
1013 # define UINT16_C(x) ((U16_TYPE)x##U)
1015 # define UINT16_C(x) ((U16_TYPE)x##UL)
1021 # define UINT32_C(x) ((U32_TYPE)x##U)
1023 # define UINT32_C(x) ((U32_TYPE)x##UL)
1028 typedef intmax_t PERL_INTMAX_T;
1029 typedef uintmax_t PERL_UINTMAX_T;
1032 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1033 * actually mean what it has always been documented to mean (see RT #119753)
1034 * and is explicitly turned off outside of core with dire warnings about
1035 * removing the undef. */
1037 #if defined(QUADKIND)
1038 # undef PeRl_INT64_C
1039 # undef PeRl_UINT64_C
1040 /* Prefer the native integer types (int and long) over long long
1041 * (which is not C89) and Win32-specific __int64. */
1042 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1043 # define PeRl_INT64_C(c) (c)
1044 # define PeRl_UINT64_C(c) CAT2(c,U)
1046 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1047 # define PeRl_INT64_C(c) CAT2(c,L)
1048 # define PeRl_UINT64_C(c) CAT2(c,UL)
1050 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1051 # define PeRl_INT64_C(c) CAT2(c,LL)
1052 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1054 # if QUADKIND == QUAD_IS___INT64
1055 # define PeRl_INT64_C(c) CAT2(c,I64)
1056 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1058 # ifndef PeRl_INT64_C
1059 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1060 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1062 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1063 * not fly with C89-pedantic gcc, so let's undefine them first so that
1064 * we can redefine them with our native integer preferring versions. */
1065 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1070 # define INT64_C(c) PeRl_INT64_C(c)
1073 # define UINT64_C(c) PeRl_UINT64_C(c)
1077 =for apidoc_section Integer configuration values
1078 =for apidoc Am||INTMAX_C|number
1079 Returns a token the C compiler recognizes for the constant C<number> of the
1080 widest integer type on the machine. For example, if the machine has C<long
1081 long>s, C<INTMAX_C(-1)> would yield
1085 =for apidoc Am||UINTMAX_C|number
1086 Returns a token the C compiler recognizes for the constant C<number> of the
1087 widest unsigned integer type on the machine. For example, if the machine has
1088 C<long>s, C<UINTMAX_C(1)> would yield
1096 typedef I64TYPE PERL_INTMAX_T;
1097 typedef U64TYPE PERL_UINTMAX_T;
1100 # define INTMAX_C(c) INT64_C(c)
1103 # define UINTMAX_C(c) UINT64_C(c)
1106 #else /* below QUADKIND is undefined */
1108 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1110 typedef I32TYPE PERL_INTMAX_T;
1111 typedef U32TYPE PERL_UINTMAX_T;
1114 # define INTMAX_C(c) INT32_C(c)
1117 # define UINTMAX_C(c) UINT32_C(c)
1120 #endif /* no QUADKIND */
1124 /* byte-swapping functions for big-/little-endian conversion */
1125 # define _swab_16_(x) ((U16)( \
1126 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1127 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1129 # define _swab_32_(x) ((U32)( \
1130 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1131 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1132 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1133 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1136 # define _swab_64_(x) ((U64)( \
1137 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1138 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1139 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1140 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1141 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1142 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1143 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1144 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1147 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1148 at least on FreeBSD. YMMV, so experiment. */
1149 #ifndef PERL_ARENA_SIZE
1150 #define PERL_ARENA_SIZE 4080
1153 /* Maximum level of recursion */
1154 #ifndef PERL_SUB_DEPTH_WARN
1155 #define PERL_SUB_DEPTH_WARN 100
1158 #endif /* PERL_CORE */
1160 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1161 * It determines the size of local arrays in S_maybe_multiconcat() and
1164 #define PERL_MULTICONCAT_MAXARG 64
1166 /* The indexes of fields of a multiconcat aux struct.
1167 * The fixed fields are followed by nargs+1 const segment lengths,
1168 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1171 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1172 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1173 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1174 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1175 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1176 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1177 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1178 multiconcat header */
1180 /* We no longer default to creating a new SV for GvSV.
1181 Do this before embed. */
1182 #ifndef PERL_CREATE_GVSV
1183 # ifndef PERL_DONT_CREATE_GVSV
1184 # define PERL_DONT_CREATE_GVSV
1188 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1189 #define PERL_USES_PL_PIDSTATUS
1192 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1193 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1196 #define MEM_SIZE Size_t
1198 /* Round all values passed to malloc up, by default to a multiple of
1201 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1202 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1205 /* sv_grow() will expand strings by at least a certain percentage of
1206 the previously *used* length to avoid excessive calls to realloc().
1207 The default is 25% of the current length.
1209 #ifndef PERL_STRLEN_EXPAND_SHIFT
1210 # define PERL_STRLEN_EXPAND_SHIFT 2
1213 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1214 * onwards) when building Socket.xs, but we can just use a different definition
1215 * for STRUCT_OFFSET instead. */
1216 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1217 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1219 # include <stddef.h>
1220 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1223 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1224 * in C89, but apparently there are platforms where it doesn't exist. See
1225 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1227 #ifdef PERL_GCC_PEDANTIC
1228 # undef HAS_PTRDIFF_T
1231 #ifdef HAS_PTRDIFF_T
1232 # define Ptrdiff_t ptrdiff_t
1234 # define Ptrdiff_t SSize_t
1237 # include <string.h>
1239 /* This comes after <stdlib.h> so we don't try to change the standard
1240 * library prototypes; we'll use our own in proto.h instead. */
1243 # ifdef PERL_POLLUTE_MALLOC
1244 # ifndef PERL_EXTMALLOC_DEF
1245 # define Perl_malloc malloc
1246 # define Perl_calloc calloc
1247 # define Perl_realloc realloc
1248 # define Perl_mfree free
1251 # define EMBEDMYMALLOC /* for compatibility */
1254 # define safemalloc Perl_malloc
1255 # define safecalloc Perl_calloc
1256 # define saferealloc Perl_realloc
1257 # define safefree Perl_mfree
1258 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1259 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1262 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1263 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1264 # define panic_write2(s) write(2, s, strlen(s))
1265 # define CHECK_MALLOC_TAINT(newval) \
1266 CHECK_MALLOC_TOO_LATE_FOR_( \
1268 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1270 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1271 if (doing_taint(argc,argv,env)) { \
1272 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1274 #else /* MYMALLOC */
1275 # define safemalloc safesysmalloc
1276 # define safecalloc safesyscalloc
1277 # define saferealloc safesysrealloc
1278 # define safefree safesysfree
1279 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1280 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1281 # define MALLOC_CHECK_TAINT(argc,argv,env)
1282 #endif /* MYMALLOC */
1284 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1285 #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)
1286 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1287 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1288 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1291 # define memzero(d,l) memset(d,0,l)
1295 # include <netinet/in.h>
1299 # include <arpa/inet.h>
1303 # include <sys/stat.h>
1306 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1307 This definition should ideally go into win32/win32.h, but S_IFIFO is
1308 used later here in perl.h before win32/win32.h is being included. */
1309 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1310 # define S_IFIFO _S_IFIFO
1313 /* The stat macros for Unisoft System V/88 (and derivatives
1314 like UTekV) are broken, sometimes giving false positives. Undefine
1315 them here and let the code below set them to proper values.
1317 The ghs macro stands for GreenHills Software C-1.8.5 which
1318 is the C compiler for sysV88 and the various derivatives.
1319 This header file bug is corrected in gcc-2.5.8 and later versions.
1320 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1322 #if defined(m88k) && defined(ghs)
1334 # ifdef I_SYS_TIME_KERNEL
1337 # include <sys/time.h>
1338 # ifdef I_SYS_TIME_KERNEL
1343 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1344 # include <sys/times.h>
1349 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1350 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1353 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1354 # include <sys/socket.h>
1355 # if defined(USE_SOCKS) && defined(I_SOCKS)
1356 # if !defined(INCLUDE_PROTOTYPES)
1357 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1358 # define PERL_SOCKS_NEED_PROTOTYPES
1361 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1362 # undef INCLUDE_PROTOTYPES
1363 # undef PERL_SOCKS_NEED_PROTOTYPES
1374 # include <net/errno.h>
1379 /* sockatmark() is so new (2001) that many places might have it hidden
1380 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1381 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1382 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1383 # if defined(__THROW) && defined(__GLIBC__)
1384 int sockatmark(int) __THROW;
1386 int sockatmark(int);
1390 #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. */
1391 EXTERN_C int fchdir(int);
1392 EXTERN_C int flock(int, int);
1393 EXTERN_C int fseeko(FILE *, off_t, int);
1394 EXTERN_C off_t ftello(FILE *);
1397 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1398 EXTERN_C char *crypt(const char *, const char *);
1401 #if defined(__cplusplus) && defined(__CYGWIN__)
1402 EXTERN_C char *crypt(const char *, const char *);
1406 =for apidoc_section Errno
1408 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1410 Set C<errno>, and on VMS set C<vaxc$errno>.
1412 =for apidoc mn|void|dSAVEDERRNO
1414 Declare variables needed to save C<errno> and any operating system
1415 specific error number.
1417 =for apidoc mn|void|dSAVE_ERRNO
1419 Declare variables needed to save C<errno> and any operating system
1420 specific error number, and save them for optional later restoration
1421 by C<RESTORE_ERRNO>.
1423 =for apidoc mn|void|SAVE_ERRNO
1425 Save C<errno> and any operating system specific error number for
1426 optional later restoration by C<RESTORE_ERRNO>. Requires
1427 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1429 =for apidoc mn|void|RESTORE_ERRNO
1431 Restore C<errno> and any operating system specific error number that
1432 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1438 # undef SETERRNO /* SOCKS might have defined this */
1442 # define SETERRNO(errcode,vmserrcode) \
1444 set_errno(errcode); \
1445 set_vaxc_errno(vmserrcode); \
1447 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1448 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1449 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1450 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1452 # define LIB_INVARG LIB$_INVARG
1453 # define RMS_DIR RMS$_DIR
1454 # define RMS_FAC RMS$_FAC
1455 # define RMS_FEX RMS$_FEX
1456 # define RMS_FNF RMS$_FNF
1457 # define RMS_IFI RMS$_IFI
1458 # define RMS_ISI RMS$_ISI
1459 # define RMS_PRV RMS$_PRV
1460 # define SS_ACCVIO SS$_ACCVIO
1461 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1462 # define SS_IVCHAN SS$_IVCHAN
1463 # define SS_NORMAL SS$_NORMAL
1464 # define SS_NOPRIV SS$_NOPRIV
1465 # define SS_BUFFEROVF SS$_BUFFEROVF
1467 # define LIB_INVARG 0
1475 # define SS_ACCVIO 0
1476 # define SS_DEVOFFLINE 0
1477 # define SS_IVCHAN 0
1478 # define SS_NORMAL 0
1479 # define SS_NOPRIV 0
1480 # define SS_BUFFEROVF 0
1484 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1485 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1486 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1487 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1491 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1492 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1493 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1494 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1498 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1502 # define dSAVEDERRNO int saved_errno
1503 # define dSAVE_ERRNO int saved_errno = errno
1504 # define SAVE_ERRNO (saved_errno = errno)
1505 # define RESTORE_ERRNO (errno = saved_errno)
1509 =for apidoc_section Warning and Dieing
1511 =for apidoc Amn|SV *|ERRSV
1513 Returns the SV for C<$@>, creating it if needed.
1515 =for apidoc Am|void|CLEAR_ERRSV
1517 Clear the contents of C<$@>, setting it to the empty string.
1519 This replaces any read-only SV with a fresh SV and removes any magic.
1521 =for apidoc Am|void|SANE_ERRSV
1523 Clean up ERRSV so we can safely set it.
1525 This replaces any read-only SV with a fresh writable copy and removes
1531 #define ERRSV GvSVn(PL_errgv)
1533 /* contains inlined gv_add_by_type */
1534 #define CLEAR_ERRSV() STMT_START { \
1535 SV ** const svp = &GvSV(PL_errgv); \
1537 *svp = newSVpvs(""); \
1538 } else if (SvREADONLY(*svp)) { \
1539 SvREFCNT_dec_NN(*svp); \
1540 *svp = newSVpvs(""); \
1542 SV *const errsv = *svp; \
1544 SvPOK_only(errsv); \
1545 if (SvMAGICAL(errsv)) { \
1551 /* contains inlined gv_add_by_type */
1552 #define SANE_ERRSV() STMT_START { \
1553 SV ** const svp = &GvSV(PL_errgv); \
1555 *svp = newSVpvs(""); \
1556 } else if (SvREADONLY(*svp)) { \
1557 SV *dupsv = newSVsv(*svp); \
1558 SvREFCNT_dec_NN(*svp); \
1561 SV *const errsv = *svp; \
1562 if (SvMAGICAL(errsv)) { \
1570 # define DEFSV (0 + GvSVn(PL_defgv))
1571 # define DEFSV_set(sv) \
1572 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1573 # define SAVE_DEFSV \
1575 save_gp(PL_defgv, 0), \
1576 GvINTRO_off(PL_defgv), \
1577 SAVEGENERICSV(GvSV(PL_defgv)), \
1578 GvSV(PL_defgv) = NULL \
1581 # define DEFSV GvSVn(PL_defgv)
1582 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1583 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1587 =for apidoc_section SV Handling
1588 =for apidoc Amn|SV *|DEFSV
1589 Returns the SV associated with C<$_>
1591 =for apidoc Am|void|DEFSV_set|SV * sv
1592 Associate C<sv> with C<$_>
1594 =for apidoc Amn|void|SAVE_DEFSV
1595 Localize C<$_>. See L<perlguts/Localizing changes>.
1601 extern int errno; /* ANSI allows errno to be an lvalue expr.
1602 * For example in multithreaded environments
1603 * something like this might happen:
1604 * extern int *_errno(void);
1605 * #define errno (*_errno()) */
1608 #define UNKNOWN_ERRNO_MSG "(unknown)"
1611 #define Strerror(e) strerror((e), vaxc$errno)
1613 #define Strerror(e) strerror(e)
1618 # include <sys/ioctl.h>
1622 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1623 # ifdef HAS_SOCKETPAIR
1624 # undef HAS_SOCKETPAIR
1631 #ifndef HAS_SOCKETPAIR
1633 # define socketpair Perl_my_socketpair
1638 # define htoni htons
1639 # define ntohi ntohs
1641 # define htoni htonl
1642 # define ntohi ntohl
1645 /* Configure already sets Direntry_t */
1646 #if defined(I_DIRENT)
1647 # include <dirent.h>
1648 #elif defined(I_SYS_NDIR)
1649 # include <sys/ndir.h>
1650 #elif defined(I_SYS_DIR)
1651 # include <sys/dir.h>
1655 * The following gobbledygook brought to you on behalf of __STDC__.
1656 * (I could just use #ifndef __STDC__, but this is more bulletproof
1657 * in the face of half-implementations.)
1660 #if defined(I_SYSMODE)
1661 #include <sys/mode.h>
1666 # define S_IFMT _S_IFMT
1668 # define S_IFMT 0170000
1673 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1677 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1682 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1684 # define S_ISBLK(m) (0)
1689 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1694 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1696 # define S_ISFIFO(m) (0)
1702 # define S_ISLNK(m) _S_ISLNK(m)
1703 # elif defined(_S_IFLNK)
1704 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1705 # elif defined(S_IFLNK)
1706 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1708 # define S_ISLNK(m) (0)
1714 # define S_ISSOCK(m) _S_ISSOCK(m)
1715 # elif defined(_S_IFSOCK)
1716 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1717 # elif defined(S_IFSOCK)
1718 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1720 # define S_ISSOCK(m) (0)
1726 # define S_IRUSR S_IREAD
1727 # define S_IWUSR S_IWRITE
1728 # define S_IXUSR S_IEXEC
1730 # define S_IRUSR 0400
1731 # define S_IWUSR 0200
1732 # define S_IXUSR 0100
1738 # define S_IRGRP (S_IRUSR>>3)
1739 # define S_IWGRP (S_IWUSR>>3)
1740 # define S_IXGRP (S_IXUSR>>3)
1742 # define S_IRGRP 0040
1743 # define S_IWGRP 0020
1744 # define S_IXGRP 0010
1750 # define S_IROTH (S_IRUSR>>6)
1751 # define S_IWOTH (S_IWUSR>>6)
1752 # define S_IXOTH (S_IXUSR>>6)
1754 # define S_IROTH 0040
1755 # define S_IWOTH 0020
1756 # define S_IXOTH 0010
1761 # define S_ISUID 04000
1765 # define S_ISGID 02000
1769 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1773 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1777 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1780 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1781 * which would get included through <sys/file.h >, but that is 3000
1782 * lines in the future. --jhi */
1784 #if !defined(S_IREAD) && !defined(__HAIKU__)
1785 # define S_IREAD S_IRUSR
1788 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1789 # define S_IWRITE S_IWUSR
1793 # define S_IEXEC S_IXUSR
1796 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1797 # define SLOPPYDIVIDE
1804 /* This used to be conditionally defined based on whether we had a sprintf()
1805 * that correctly returns the string length (as required by C89), but we no
1806 * longer need that. XS modules can (and do) use this name, so it must remain
1807 * a part of the API that's visible to modules.
1809 =for apidoc_section String Handling
1810 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1812 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1817 #define my_sprintf sprintf
1820 * If we have v?snprintf() and the C99 variadic macros, we can just
1821 * use just the v?snprintf(). It is nice to try to trap the buffer
1822 * overflow, however, so if we are DEBUGGING, and we cannot use the
1823 * gcc statement expressions, then use the function wrappers which try
1824 * to trap the overflow. If we can use the gcc statement expressions,
1825 * we can try that even with the version that uses the C99 variadic
1829 /* Note that we do not check against snprintf()/vsnprintf() returning
1830 * negative values because that is non-standard behaviour and we use
1831 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1832 * that should be true only if the snprintf()/vsnprintf() are true
1833 * to the standard. */
1835 #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
1838 # define my_snprintf Perl_my_snprintf
1839 # define PERL_MY_SNPRINTF_GUARDED
1840 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1841 # ifdef PERL_USE_GCC_BRACE_GROUPS
1842 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1843 # define PERL_MY_SNPRINTF_GUARDED
1845 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1848 # define my_snprintf Perl_my_snprintf
1849 # define PERL_MY_SNPRINTF_GUARDED
1852 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1853 * dies if called under USE_QUADMATH. */
1854 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1855 # ifdef PERL_USE_GCC_BRACE_GROUPS
1856 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1857 # define PERL_MY_VSNPRINTF_GUARDED
1859 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1862 # define my_vsnprintf Perl_my_vsnprintf
1863 # define PERL_MY_VSNPRINTF_GUARDED
1866 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1867 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1868 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1869 * completely ignore it: otherwise you cannot know whether your output
1872 * int len = my_sprintf(buf, max, ...);
1873 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1875 * The trick is that in certain platforms [a] the my_sprintf() already
1876 * contains the sanity check, while in certain platforms [b] it needs
1877 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1878 * platforms the POST_GUARD actually does nothing since the check has
1879 * already been done. Watch out for the max being the same in both calls.
1881 * If you actually use the snprintf/vsnprintf return value already,
1882 * you assumedly are checking its validity somehow. But you can
1883 * insert the POST_GUARD() also in that case. */
1885 #ifndef PERL_MY_SNPRINTF_GUARDED
1886 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1888 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1891 #ifndef PERL_MY_VSNPRINTF_GUARDED
1892 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1894 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1898 # define my_strlcat strlcat
1901 #if defined(PERL_CORE) || defined(PERL_EXT)
1903 # define my_memrchr memrchr
1905 # define my_memrchr S_my_memrchr
1910 # define my_strlcpy strlcpy
1914 # define my_strnlen strnlen
1918 The IV type is supposed to be long enough to hold any integral
1920 --Andy Dougherty August 1996
1926 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1927 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1928 # define IV_MAX ((IV)INT64_MAX)
1929 # define IV_MIN ((IV)INT64_MIN)
1930 # define UV_MAX ((UV)UINT64_MAX)
1932 # define UINT64_MIN 0
1934 # define UV_MIN ((UV)UINT64_MIN)
1936 # define IV_MAX PERL_QUAD_MAX
1937 # define IV_MIN PERL_QUAD_MIN
1938 # define UV_MAX PERL_UQUAD_MAX
1939 # define UV_MIN PERL_UQUAD_MIN
1944 # if defined(INT32_MAX) && IVSIZE == 4
1945 # define IV_MAX ((IV)INT32_MAX)
1946 # define IV_MIN ((IV)INT32_MIN)
1947 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1948 # define UV_MAX ((UV)UINT32_MAX)
1950 # define UV_MAX ((UV)4294967295U)
1953 # define UINT32_MIN 0
1955 # define UV_MIN ((UV)UINT32_MIN)
1957 # define IV_MAX PERL_LONG_MAX
1958 # define IV_MIN PERL_LONG_MIN
1959 # define UV_MAX PERL_ULONG_MAX
1960 # define UV_MIN PERL_ULONG_MIN
1971 #if !defined(PERL_CORE)
1972 /* We think that removing this decade-old undef this will cause too much
1973 breakage on CPAN for too little gain. (See RT #119753)
1974 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1980 #define Size_t_MAX (~(Size_t)0)
1981 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1983 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1984 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1986 #ifndef NO_PERL_PRESERVE_IVUV
1987 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1991 * The macros INT2PTR and NUM2PTR are (despite their names)
1992 * bi-directional: they will convert int/float to or from pointers.
1993 * However the conversion to int/float are named explicitly:
1994 * PTR2IV, PTR2UV, PTR2NV.
1996 * For int conversions we do not need two casts if pointers are
1997 * the same size as IV and UV. Otherwise we need an explicit
1998 * cast (PTRV) to avoid compiler warnings.
2000 * These are mentioned in perlguts
2002 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2004 # define INT2PTR(any,d) (any)(d)
2005 #elif PTRSIZE == LONGSIZE
2006 # define PTRV unsigned long
2007 # define PTR2ul(p) (unsigned long)(p)
2009 # define PTRV unsigned
2013 # define INT2PTR(any,d) (any)(PTRV)(d)
2017 # define PTR2ul(p) INT2PTR(unsigned long,p)
2020 #define NUM2PTR(any,d) (any)(PTRV)(d)
2021 #define PTR2IV(p) INT2PTR(IV,p)
2022 #define PTR2UV(p) INT2PTR(UV,p)
2023 #define PTR2NV(p) NUM2PTR(NV,p)
2024 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2026 /* According to strict ANSI C89 one cannot freely cast between
2027 * data pointers and function (code) pointers. There are at least
2028 * two ways around this. One (used below) is to do two casts,
2029 * first the other pointer to an (unsigned) integer, and then
2030 * the integer to the other pointer. The other way would be
2031 * to use unions to "overlay" the pointers. For an example of
2032 * the latter technique, see union dirpu in struct xpvio in sv.h.
2033 * The only feasible use is probably temporarily storing
2034 * function pointers in a data pointer (such as a void pointer). */
2036 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2037 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2039 #ifdef USE_LONG_DOUBLE
2040 # if LONG_DOUBLESIZE == DOUBLESIZE
2041 # define LONG_DOUBLE_EQUALS_DOUBLE
2042 # undef USE_LONG_DOUBLE /* Ouch! */
2046 /* The following is all to get LDBL_DIG, in order to pick a nice
2047 default value for printing floating point numbers in Gconvert.
2050 #ifndef HAS_LDBL_DIG
2051 # if LONG_DOUBLESIZE == 10
2052 # define LDBL_DIG 18 /* assume IEEE */
2053 # elif LONG_DOUBLESIZE == 12
2054 # define LDBL_DIG 18 /* gcc? */
2055 # elif LONG_DOUBLESIZE == 16
2056 # define LDBL_DIG 33 /* assume IEEE */
2057 # elif LONG_DOUBLESIZE == DOUBLESIZE
2058 # define LDBL_DIG DBL_DIG /* bummer */
2065 # include <ieeefp.h>
2068 #if defined(__DECC) && defined(__osf__)
2069 /* Also Tru64 cc has broken NaN comparisons. */
2070 # define NAN_COMPARE_BROKEN
2073 # define NAN_COMPARE_BROKEN
2076 #ifdef USE_LONG_DOUBLE
2078 # include <sunmath.h>
2080 # if defined(LDBL_DIG)
2081 # define NV_DIG LDBL_DIG
2082 # ifdef LDBL_MANT_DIG
2083 # define NV_MANT_DIG LDBL_MANT_DIG
2086 # define NV_MIN LDBL_MIN
2089 # define NV_MAX LDBL_MAX
2091 # ifdef LDBL_MIN_EXP
2092 # define NV_MIN_EXP LDBL_MIN_EXP
2094 # ifdef LDBL_MAX_EXP
2095 # define NV_MAX_EXP LDBL_MAX_EXP
2097 # ifdef LDBL_MIN_10_EXP
2098 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2100 # ifdef LDBL_MAX_10_EXP
2101 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2103 # ifdef LDBL_EPSILON
2104 # define NV_EPSILON LDBL_EPSILON
2107 # define NV_MAX LDBL_MAX
2108 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2109 # elif defined(HUGE_VALL)
2110 # define NV_MAX HUGE_VALL
2113 # if defined(HAS_SQRTL)
2114 # define Perl_acos acosl
2115 # define Perl_asin asinl
2116 # define Perl_atan atanl
2117 # define Perl_atan2 atan2l
2118 # define Perl_ceil ceill
2119 # define Perl_cos cosl
2120 # define Perl_cosh coshl
2121 # define Perl_exp expl
2122 /* no Perl_fabs, but there's PERL_ABS */
2123 # define Perl_floor floorl
2124 # define Perl_fmod fmodl
2125 # define Perl_log logl
2126 # define Perl_log10 log10l
2127 # define Perl_pow powl
2128 # define Perl_sin sinl
2129 # define Perl_sinh sinhl
2130 # define Perl_sqrt sqrtl
2131 # define Perl_tan tanl
2132 # define Perl_tanh tanhl
2134 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2137 # define Perl_modf(x,y) modfl(x,y)
2138 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2139 prototype in <math.h> */
2140 # ifndef HAS_MODFL_PROTO
2141 EXTERN_C long double modfl(long double, long double *);
2143 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2144 extern long double Perl_my_modfl(long double x, long double *ip);
2145 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2150 # define Perl_frexp(x,y) frexpl(x,y)
2151 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2152 extern long double Perl_my_frexpl(long double x, int *e);
2153 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2158 # define Perl_ldexp(x, y) ldexpl(x,y)
2159 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2160 # define Perl_ldexp(x,y) scalbnl(x,y)
2164 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2165 # define Perl_isnan(x) isnanl(x)
2166 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2167 # define Perl_isnan(x) isnan(x)
2171 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2172 # define Perl_isinf(x) isinfl(x)
2173 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2174 # define Perl_isinf(x) isinf(x)
2175 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2176 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2179 # ifndef Perl_isfinite
2180 # define Perl_isfinite(x) Perl_isfinitel(x)
2182 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2183 # include <quadmath.h>
2184 # define NV_DIG FLT128_DIG
2185 # define NV_MANT_DIG FLT128_MANT_DIG
2186 # define NV_MIN FLT128_MIN
2187 # define NV_MAX FLT128_MAX
2188 # define NV_MIN_EXP FLT128_MIN_EXP
2189 # define NV_MAX_EXP FLT128_MAX_EXP
2190 # define NV_EPSILON FLT128_EPSILON
2191 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2192 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2193 # define Perl_acos acosq
2194 # define Perl_asin asinq
2195 # define Perl_atan atanq
2196 # define Perl_atan2 atan2q
2197 # define Perl_ceil ceilq
2198 # define Perl_cos cosq
2199 # define Perl_cosh coshq
2200 # define Perl_exp expq
2201 /* no Perl_fabs, but there's PERL_ABS */
2202 # define Perl_floor floorq
2203 # define Perl_fmod fmodq
2204 # define Perl_log logq
2205 # define Perl_log10 log10q
2206 # define Perl_signbit signbitq
2207 # define Perl_pow powq
2208 # define Perl_sin sinq
2209 # define Perl_sinh sinhq
2210 # define Perl_sqrt sqrtq
2211 # define Perl_tan tanq
2212 # define Perl_tanh tanhq
2213 # define Perl_modf(x,y) modfq(x,y)
2214 # define Perl_frexp(x,y) frexpq(x,y)
2215 # define Perl_ldexp(x, y) ldexpq(x,y)
2216 # define Perl_isinf(x) isinfq(x)
2217 # define Perl_isnan(x) isnanq(x)
2218 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2219 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2220 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2221 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2222 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2223 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2224 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2226 # define NV_DIG DBL_DIG
2227 # define NV_MANT_DIG DBL_MANT_DIG
2228 # define NV_MIN DBL_MIN
2229 # define NV_MAX DBL_MAX
2230 # define NV_MIN_EXP DBL_MIN_EXP
2231 # define NV_MAX_EXP DBL_MAX_EXP
2232 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2233 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2234 # define NV_EPSILON DBL_EPSILON
2235 # define NV_MAX DBL_MAX
2236 # define NV_MIN DBL_MIN
2238 /* These math interfaces are C89. */
2239 # define Perl_acos acos
2240 # define Perl_asin asin
2241 # define Perl_atan atan
2242 # define Perl_atan2 atan2
2243 # define Perl_ceil ceil
2244 # define Perl_cos cos
2245 # define Perl_cosh cosh
2246 # define Perl_exp exp
2247 /* no Perl_fabs, but there's PERL_ABS */
2248 # define Perl_floor floor
2249 # define Perl_fmod fmod
2250 # define Perl_log log
2251 # define Perl_log10 log10
2252 # define Perl_pow pow
2253 # define Perl_sin sin
2254 # define Perl_sinh sinh
2255 # define Perl_sqrt sqrt
2256 # define Perl_tan tan
2257 # define Perl_tanh tanh
2259 # define Perl_modf(x,y) modf(x,y)
2260 # define Perl_frexp(x,y) frexp(x,y)
2261 # define Perl_ldexp(x,y) ldexp(x,y)
2265 # define Perl_isnan(x) isnan(x)
2269 # if defined(HAS_ISINF)
2270 # define Perl_isinf(x) isinf(x)
2271 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2272 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2275 # ifndef Perl_isfinite
2276 # ifdef HAS_ISFINITE
2277 # define Perl_isfinite(x) isfinite(x)
2278 # elif defined(HAS_FINITE)
2279 # define Perl_isfinite(x) finite(x)
2284 /* fpclassify(): C99. It is supposed to be a macro that switches on
2285 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2286 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2288 # if defined(FP_INFINITE) && defined(FP_NAN)
2289 # define Perl_fp_class(x) fpclassify(x)
2290 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2291 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2292 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2293 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2294 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2295 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2296 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2297 * actually not the C99 fpclassify, with its own set of return defines. */
2298 # define Perl_fp_class(x) fpclassify(x)
2299 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2300 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2301 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2302 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2303 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2304 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2305 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2306 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2307 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2308 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2310 # undef Perl_fp_class /* Unknown set of defines */
2314 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2315 * are identical to the C99 fpclassify(). */
2316 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2319 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2321 /* oh, and the isnormal macro has a typo in it! */
2323 # define isnormal(x) Perl_fp_class_norm(x)
2325 # if defined(FP_INFINITE) && defined(FP_NAN)
2326 # define Perl_fp_class(x) fp_classify(x)
2327 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2328 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2329 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2330 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2331 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2333 # undef Perl_fp_class /* Unknown set of defines */
2337 /* Feel free to check with me for the SGI manpages, SGI testing,
2338 * etcetera, if you want to try getting this to work with IRIX.
2340 * - Allen <allens@cpan.org> */
2342 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2343 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2344 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2345 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2346 * Define some symbols also as cpp symbols so we can detect them. */
2347 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2348 # define FP_PINF FP_PINF
2349 # define FP_QNAN FP_QNAN
2353 # include <ieeefp.h>
2358 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2359 # define Perl_fp_class(x) fpclassl(x)
2361 # define Perl_fp_class(x) fpclass(x)
2363 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2364 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2365 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2366 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2367 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2368 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2369 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2370 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2371 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2372 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2373 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2374 # elif defined(FP_PINF) && defined(FP_QNAN)
2375 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2376 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2377 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2378 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2379 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2380 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2381 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2382 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2383 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2384 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2386 # undef Perl_fp_class /* Unknown set of defines */
2390 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2391 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2393 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2394 # include <fp_class.h>
2396 # if defined(FP_POS_INF) && defined(FP_QNAN)
2397 # ifdef __sgi /* XXX Configure test instead */
2398 # ifdef USE_LONG_DOUBLE
2399 # define Perl_fp_class(x) fp_class_l(x)
2401 # define Perl_fp_class(x) fp_class_d(x)
2404 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2405 # define Perl_fp_class(x) fp_classl(x)
2407 # define Perl_fp_class(x) fp_class(x)
2410 # if defined(FP_POS_INF) && defined(FP_QNAN)
2411 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2412 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2413 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2414 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2415 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2416 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2417 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2418 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2419 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2420 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2422 # undef Perl_fp_class /* Unknown set of defines */
2427 /* class(), _class(): Legacy: AIX. */
2428 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2430 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2432 # define Perl_fp_class(x) class(x)
2434 # define Perl_fp_class(x) _class(x)
2436 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2437 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2438 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2439 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2440 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2441 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2442 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2443 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2444 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2445 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2446 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2448 # undef Perl_fp_class /* Unknown set of defines */
2453 /* Win32: _fpclass(), _isnan(), _finite(). */
2456 # define Perl_isnan(x) _isnan(x)
2458 # ifndef Perl_isfinite
2459 # define Perl_isfinite(x) _finite(x)
2461 # ifndef Perl_fp_class_snan
2462 /* No simple way to #define Perl_fp_class because _fpclass()
2463 * returns a set of bits. */
2464 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2465 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2466 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2467 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2468 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2469 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2470 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2471 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2472 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2473 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2474 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2475 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2476 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2477 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2478 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2482 #if !defined(Perl_fp_class_inf) && \
2483 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2484 # define Perl_fp_class_inf(x) \
2485 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2488 #if !defined(Perl_fp_class_nan) && \
2489 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2490 # define Perl_fp_class_nan(x) \
2491 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2494 #if !defined(Perl_fp_class_zero) && \
2495 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2496 # define Perl_fp_class_zero(x) \
2497 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2500 #if !defined(Perl_fp_class_norm) && \
2501 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2502 # define Perl_fp_class_norm(x) \
2503 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2506 #if !defined(Perl_fp_class_denorm) && \
2507 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2508 # define Perl_fp_class_denorm(x) \
2509 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2513 # ifdef Perl_fp_class_nan
2514 # define Perl_isnan(x) Perl_fp_class_nan(x)
2515 # elif defined(HAS_UNORDERED)
2516 # define Perl_isnan(x) unordered((x), 0.0)
2518 # define Perl_isnan(x) ((x)!=(x))
2523 # ifdef Perl_fp_class_inf
2524 # define Perl_isinf(x) Perl_fp_class_inf(x)
2528 #ifndef Perl_isfinite
2529 # if defined(HAS_ISFINITE) && !defined(isfinite)
2530 # define Perl_isfinite(x) isfinite((double)(x))
2531 # elif defined(HAS_FINITE)
2532 # define Perl_isfinite(x) finite((double)(x))
2533 # elif defined(Perl_fp_class_finite)
2534 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2536 /* For the infinities the multiplication returns nan,
2537 * for the nan the multiplication also returns nan,
2538 * for everything else (that is, finite) zero should be returned. */
2539 # define Perl_isfinite(x) (((x) * 0) == 0)
2544 # if defined(Perl_isfinite) && defined(Perl_isnan)
2545 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2549 /* We need Perl_isfinitel (ends with ell) (if available) even when
2550 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2552 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2553 /* If isfinite() is a macro and looks like we have C99,
2554 * we assume it's the type-aware C99 isfinite(). */
2555 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2556 # define Perl_isfinitel(x) isfinite(x)
2557 # elif defined(HAS_ISFINITEL)
2558 # define Perl_isfinitel(x) isfinitel(x)
2559 # elif defined(HAS_FINITEL)
2560 # define Perl_isfinitel(x) finitel(x)
2561 # elif defined(HAS_INFL) && defined(HAS_NANL)
2562 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2564 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2568 /* The default is to use Perl's own atof() implementation (in numeric.c).
2569 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2570 * it is however best to use the native implementation of atof.
2571 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2572 * Some good tests to try out with either setting are t/base/num.t,
2573 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2574 * you may need to be using a different function than atof! */
2576 #ifndef USE_PERL_ATOF
2578 # define USE_PERL_ATOF
2581 # if USE_PERL_ATOF == 0
2582 # undef USE_PERL_ATOF
2586 #ifdef USE_PERL_ATOF
2587 # define Perl_atof(s) Perl_my_atof(s)
2588 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2590 # define Perl_atof(s) (NV)atof(s)
2591 # define Perl_atof2(s, n) ((n) = atof(s))
2593 #define my_atof2(a,b) my_atof3(a,b,0)
2596 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2597 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2598 * depending on local options. Until Configure detects this (or at least
2599 * detects whether the "signed" keyword is available) the CHAR ranges
2600 * will not be included. UCHAR functions normally.
2604 #define PERL_UCHAR_MIN ((unsigned char)0)
2605 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2607 #define PERL_USHORT_MIN ((unsigned short)0)
2608 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2610 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2611 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2613 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2614 #define PERL_UINT_MIN ((unsigned int)0)
2616 #define PERL_INT_MAX ((int)INT_MAX)
2617 #define PERL_INT_MIN ((int)INT_MIN)
2619 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2620 #define PERL_ULONG_MIN ((unsigned long)0L)
2622 #define PERL_LONG_MAX ((long)LONG_MAX)
2623 #define PERL_LONG_MIN ((long)LONG_MIN)
2626 # define PERL_UQUAD_MAX (~(UV)0)
2627 # define PERL_UQUAD_MIN ((UV)0)
2628 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2629 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2633 =for apidoc_section Integer configuration values
2635 =for apidoc AmnUh||PERL_INT_MIN
2636 =for apidoc AmnUh||PERL_LONG_MAX
2637 =for apidoc AmnUh||PERL_LONG_MIN
2638 =for apidoc AmnUh||PERL_QUAD_MAX
2639 =for apidoc AmnUh||PERL_SHORT_MAX
2640 =for apidoc AmnUh||PERL_SHORT_MIN
2641 =for apidoc AmnUh||PERL_UCHAR_MAX
2642 =for apidoc AmnUh||PERL_UCHAR_MIN
2643 =for apidoc AmnUh||PERL_UINT_MAX
2644 =for apidoc AmnUh||PERL_UINT_MIN
2645 =for apidoc AmnUh||PERL_ULONG_MAX
2646 =for apidoc AmnUh||PERL_ULONG_MIN
2647 =for apidoc AmnUh||PERL_UQUAD_MAX
2648 =for apidoc AmnUh||PERL_UQUAD_MIN
2649 =for apidoc AmnUh||PERL_USHORT_MAX
2650 =for apidoc AmnUh||PERL_USHORT_MIN
2651 =for apidoc AmnUh||PERL_QUAD_MIN
2652 =for apidoc_section Floating point configuration values
2654 =for apidoc AmnU||PERL_INT_MAX
2673 give the largest and smallest number representable in the current
2674 platform in variables of the corresponding types.
2676 For signed types, the smallest representable number is the most negative
2677 number, the one furthest away from zero.
2679 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2680 are available to the C code. But these constants, furnished by Perl,
2681 allow code compiled on earlier compilers to portably have access to the same
2688 typedef MEM_SIZE STRLEN;
2690 typedef struct op OP;
2691 typedef struct cop COP;
2692 typedef struct unop UNOP;
2693 typedef struct unop_aux UNOP_AUX;
2694 typedef struct binop BINOP;
2695 typedef struct listop LISTOP;
2696 typedef struct logop LOGOP;
2697 typedef struct pmop PMOP;
2698 typedef struct svop SVOP;
2699 typedef struct padop PADOP;
2700 typedef struct pvop PVOP;
2701 typedef struct loop LOOP;
2702 typedef struct methop METHOP;
2705 typedef struct opslab OPSLAB;
2706 typedef struct opslot OPSLOT;
2709 typedef struct block_hooks BHK;
2710 typedef struct custom_op XOP;
2712 typedef struct interpreter PerlInterpreter;
2714 /* SGI's <sys/sema.h> has struct sv */
2716 # define STRUCT_SV perl_sv
2718 # define STRUCT_SV sv
2720 typedef struct STRUCT_SV SV;
2721 typedef struct av AV;
2722 typedef struct hv HV;
2723 typedef struct cv CV;
2724 typedef struct p5rx REGEXP;
2725 typedef struct gp GP;
2726 typedef struct gv GV;
2727 typedef struct io IO;
2728 typedef struct context PERL_CONTEXT;
2729 typedef struct block BLOCK;
2731 typedef struct magic MAGIC;
2732 typedef struct xpv XPV;
2733 typedef struct xpviv XPVIV;
2734 typedef struct xpvuv XPVUV;
2735 typedef struct xpvnv XPVNV;
2736 typedef struct xpvmg XPVMG;
2737 typedef struct xpvlv XPVLV;
2738 typedef struct xpvinvlist XINVLIST;
2739 typedef struct xpvav XPVAV;
2740 typedef struct xpvhv XPVHV;
2741 typedef struct xpvgv XPVGV;
2742 typedef struct xpvcv XPVCV;
2743 typedef struct xpvbm XPVBM;
2744 typedef struct xpvfm XPVFM;
2745 typedef struct xpvio XPVIO;
2746 typedef struct mgvtbl MGVTBL;
2747 typedef union any ANY;
2748 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2749 typedef struct ptr_tbl PTR_TBL_t;
2750 typedef struct clone_params CLONE_PARAMS;
2752 /* a pad is currently just an AV; but that might change,
2753 * so hide the type. */
2754 typedef struct padlist PADLIST;
2756 typedef struct padnamelist PADNAMELIST;
2757 typedef struct padname PADNAME;
2759 /* always enable PERL_OP_PARENT */
2760 #if !defined(PERL_OP_PARENT)
2761 # define PERL_OP_PARENT
2764 /* enable PERL_COPY_ON_WRITE by default */
2765 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2766 # define PERL_COPY_ON_WRITE
2769 #ifdef PERL_COPY_ON_WRITE
2770 # define PERL_ANY_COW
2772 # define PERL_SAWAMPERSAND
2775 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2776 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2780 #include "charclass_invlists.h"
2782 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2783 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2784 # define USE_64_BIT_RAWIO /* implicit */
2788 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2789 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2790 * however, because operating systems like to do that themself. */
2793 # define FSEEKSIZE LSEEKSIZE
2795 # define FSEEKSIZE LONGSIZE
2799 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2800 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2801 # define USE_64_BIT_STDIO /* implicit */
2805 #ifdef USE_64_BIT_RAWIO
2808 # define Off_t off64_t
2810 # define LSEEKSIZE 8
2812 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2813 * will trigger defines like the ones below. Some 64-bit environments,
2814 * however, do not. Therefore we have to explicitly mix and match. */
2815 # if defined(USE_OPEN64)
2816 # define open open64
2818 # if defined(USE_LSEEK64)
2819 # define lseek lseek64
2821 # if defined(USE_LLSEEK)
2822 # define lseek llseek
2825 # if defined(USE_STAT64)
2826 # define stat stat64
2828 # if defined(USE_FSTAT64)
2829 # define fstat fstat64
2831 # if defined(USE_LSTAT64)
2832 # define lstat lstat64
2834 # if defined(USE_FLOCK64)
2835 # define flock flock64
2837 # if defined(USE_LOCKF64)
2838 # define lockf lockf64
2840 # if defined(USE_FCNTL64)
2841 # define fcntl fcntl64
2843 # if defined(USE_TRUNCATE64)
2844 # define truncate truncate64
2846 # if defined(USE_FTRUNCATE64)
2847 # define ftruncate ftruncate64
2851 #ifdef USE_64_BIT_STDIO
2852 # ifdef HAS_FPOS64_T
2854 # define Fpos_t fpos64_t
2856 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2857 * will trigger defines like the ones below. Some 64-bit environments,
2858 * however, do not. */
2859 # if defined(USE_FOPEN64)
2860 # define fopen fopen64
2862 # if defined(USE_FSEEK64)
2863 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2865 # if defined(USE_FTELL64)
2866 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2868 # if defined(USE_FSETPOS64)
2869 # define fsetpos fsetpos64
2871 # if defined(USE_FGETPOS64)
2872 # define fgetpos fgetpos64
2874 # if defined(USE_TMPFILE64)
2875 # define tmpfile tmpfile64
2877 # if defined(USE_FREOPEN64)
2878 # define freopen freopen64
2883 # include "iperlsys.h"
2888 # include "os2ish.h"
2890 # include "dosish.h"
2893 # include "vmsish.h"
2894 #elif defined(PLAN9)
2895 # include "./plan9/plan9ish.h"
2896 #elif defined(__VOS__)
2898 # include "./vos/vosish.h"
2900 # include "vos/vosish.h"
2902 #elif defined(__HAIKU__)
2903 # include "haiku/haikuish.h"
2905 # include "unixish.h"
2909 # include "amigaos.h"
2910 # undef FD_CLOEXEC /* a lie in AmigaOS */
2913 /* NSIG logic from Configure --> */
2916 # define NSIG (_NSIG)
2917 # elif defined(SIGMAX)
2918 # define NSIG (SIGMAX+1)
2919 # elif defined(SIG_MAX)
2920 # define NSIG (SIG_MAX+1)
2921 # elif defined(_SIG_MAX)
2922 # define NSIG (_SIG_MAX+1)
2923 # elif defined(MAXSIG)
2924 # define NSIG (MAXSIG+1)
2925 # elif defined(MAX_SIG)
2926 # define NSIG (MAX_SIG+1)
2927 # elif defined(SIGARRAYSIZE)
2928 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2929 # elif defined(_sys_nsig)
2930 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2932 /* Default to some arbitrary number that's big enough to get most
2933 * of the common signals. */
2937 /* <-- NSIG logic from Configure */
2939 #ifndef NO_ENVIRON_ARRAY
2940 # define USE_ENVIRON_ARRAY
2944 /* On some platforms it would be safe to use a read/write mutex with many
2945 * readers possible at the same time. On other platforms, notably IBM ones,
2946 * subsequent getenv calls destroy earlier ones. Those platforms would not
2947 * be able to handle simultaneous getenv calls */
2948 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2949 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2950 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2951 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2953 # define ENV_LOCK NOOP;
2954 # define ENV_UNLOCK NOOP;
2955 # define ENV_INIT NOOP;
2956 # define ENV_TERM NOOP;
2959 /* Some critical sections need to lock both the locale and the environment.
2960 * XXX khw intends to change this to lock both mutexes, but that brings up
2961 * issues of potential deadlock, so should be done at the beginning of a
2962 * development cycle. So for now, it just locks the environment. Note that
2963 * many modern platforms are locale-thread-safe anyway, so locking the locale
2964 * mutex is a no-op anyway */
2965 #define ENV_LOCALE_LOCK ENV_LOCK
2966 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2968 /* And some critical sections care only that no one else is writing either the
2969 * locale nor the environment. XXX Again this is for the future. This can be
2970 * simulated with using COND_WAIT in thread.h */
2971 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2972 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2974 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2975 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2976 * signal handlers. But the perl core itself only fully supports 1-arg
2977 * handlers, so don't enable for now.
2978 * NB: POSIX::sigaction() supports both.
2980 * # define PERL_USE_3ARG_SIGHANDLER
2985 * This is an alias for the OS's siginfo_t, except that where the OS
2986 * doesn't support it, declare a dummy version instead. This allows us to
2987 * have signal handler functions which always have a Siginfo_t parameter
2988 * regardless of platform, (and which will just be passed a NULL value
2989 * where the OS doesn't support HAS_SIGACTION).
2992 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2993 typedef siginfo_t Siginfo_t;
2995 #ifdef si_signo /* minix */
3005 * initialise to avoid floating-point exceptions from overflow, etc
3007 #ifndef PERL_FPU_INIT
3008 # ifdef HAS_FPSETMASK
3009 # if HAS_FLOATINGPOINT_H
3010 # include <floatingpoint.h>
3012 /* Some operating systems have this as a macro, which in turn expands to a comma
3013 expression, and the last sub-expression is something that gets calculated,
3014 and then they have the gall to warn that a value computed is not used. Hence
3016 # define PERL_FPU_INIT (void)fpsetmask(0)
3017 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3018 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3019 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3020 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3022 # define PERL_FPU_INIT
3025 #ifndef PERL_FPU_PRE_EXEC
3026 # define PERL_FPU_PRE_EXEC {
3027 # define PERL_FPU_POST_EXEC }
3030 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3031 * We need to reenable the "invalid" trap because otherwise generation
3032 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3033 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3035 # include <machine/fpu.h>
3036 # define PERL_SYS_FPU_INIT \
3038 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3039 signal(SIGFPE, SIG_IGN); \
3042 /* In IRIX the default for Flush to Zero bit is true,
3043 * which means that results going below the minimum of normal
3044 * floating points go to zero, instead of going denormal/subnormal.
3045 * This is unlike almost any other system running Perl, so let's clear it.
3046 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3047 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3049 * XXX The flush-to-zero behaviour should be a Configure scan.
3050 * To change the behaviour usually requires some system-specific
3051 * incantation, though, like the below. */
3053 # include <sys/fpu.h>
3054 # define PERL_SYS_FPU_INIT \
3056 union fpc_csr csr; \
3057 csr.fc_word = get_fpc_csr(); \
3058 csr.fc_struct.flush = 0; \
3059 set_fpc_csr(csr.fc_word); \
3063 #ifndef PERL_SYS_FPU_INIT
3064 # define PERL_SYS_FPU_INIT NOOP
3067 #ifndef PERL_SYS_INIT3_BODY
3068 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3072 =for apidoc_section Embedding and Interpreter Cloning
3074 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3075 Provides system-specific tune up of the C runtime environment necessary to
3076 run Perl interpreters. This should be called only once, before creating
3077 any Perl interpreters.
3079 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3080 Provides system-specific tune up of the C runtime environment necessary to
3081 run Perl interpreters. This should be called only once, before creating
3082 any Perl interpreters.
3084 =for apidoc Am|void|PERL_SYS_TERM|
3085 Provides system-specific clean up of the C runtime environment after
3086 running Perl interpreters. This should be called only once, after
3087 freeing any remaining Perl interpreters.
3092 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3093 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3094 #define PERL_SYS_TERM() Perl_sys_term()
3096 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3097 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3102 # ifdef _POSIX_PATH_MAX
3103 # if PATH_MAX > _POSIX_PATH_MAX
3104 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3105 * included the null byte or not. Later amendments of POSIX,
3106 * XPG4, the Austin Group, and the Single UNIX Specification
3107 * all explicitly include the null byte in the PATH_MAX.
3108 * Ditto for _POSIX_PATH_MAX. */
3109 # define MAXPATHLEN PATH_MAX
3111 # define MAXPATHLEN _POSIX_PATH_MAX
3114 # define MAXPATHLEN (PATH_MAX+1)
3117 # define MAXPATHLEN 1024 /* Err on the large side. */
3121 /* clang Thread Safety Analysis/Annotations/Attributes
3122 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3124 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3125 * Apple XCode hijacks __clang_major__ and __clang_minor__
3126 * (6.1 means really clang 3.6), so needs extra hijinks
3127 * (could probably also test the contents of __apple_build_version__).
3129 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3130 defined(__clang__) && \
3132 ((!defined(__apple_build_version__) && \
3133 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3134 (__clang_major__ >= 4))) || \
3135 (defined(__apple_build_version__) && \
3136 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3137 (__clang_major__ >= 7))))
3138 # define PERL_TSA__(x) __attribute__((x))
3139 # define PERL_TSA_ACTIVE
3141 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3142 # undef PERL_TSA_ACTIVE
3145 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3146 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3148 #define PERL_TSA_CAPABILITY(x) \
3149 PERL_TSA__(capability(x))
3151 /* In the below examples the mutex must be lexically visible, usually
3152 * either as global variables, or as function arguments. */
3154 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3156 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3158 #define PERL_TSA_GUARDED_BY(x) \
3159 PERL_TSA__(guarded_by(x))
3161 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3162 * The data _behind_ the pointer is guarded.
3164 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3166 #define PERL_TSA_PT_GUARDED_BY(x) \
3167 PERL_TSA__(pt_guarded_by(x))
3169 /* PERL_TSA_REQUIRES() is used to annotate functions.
3170 * The caller MUST hold the resource when calling the function.
3172 * void Foo() PERL_TSA_REQUIRES(mutex);
3174 #define PERL_TSA_REQUIRES(x) \
3175 PERL_TSA__(requires_capability(x))
3177 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3178 * The caller MUST NOT hold resource when calling the function.
3180 * EXCLUDES should be used when the function first acquires
3181 * the resource and then releases it. Use to avoid deadlock.
3183 * void Foo() PERL_TSA_EXCLUDES(mutex);
3185 #define PERL_TSA_EXCLUDES(x) \
3186 PERL_TSA__(locks_excluded(x))
3188 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3189 * The caller MUST NOT hold the resource when calling the function,
3190 * and the function will acquire the resource.
3192 * void Foo() PERL_TSA_ACQUIRE(mutex);
3194 #define PERL_TSA_ACQUIRE(x) \
3195 PERL_TSA__(acquire_capability(x))
3197 /* PERL_TSA_RELEASE() is used to annotate functions.
3198 * The caller MUST hold the resource when calling the function,
3199 * and the function will release the resource.
3201 * void Foo() PERL_TSA_RELEASE(mutex);
3203 #define PERL_TSA_RELEASE(x) \
3204 PERL_TSA__(release_capability(x))
3206 /* PERL_TSA_NO_TSA is used to annotate functions.
3207 * Used when being intentionally unsafe, or when the code is too
3208 * complicated for the analysis. Use sparingly.
3210 * void Foo() PERL_TSA_NO_TSA;
3212 #define PERL_TSA_NO_TSA \
3213 PERL_TSA__(no_thread_safety_analysis)
3215 /* There are more annotations/attributes available, see the clang
3216 * documentation for details. */
3218 #if defined(USE_ITHREADS)
3220 # include <nw5thread.h>
3221 # elif defined(WIN32)
3222 # include <win32thread.h>
3224 # include "os2thread.h"
3225 # elif defined(I_MACH_CTHREADS)
3226 # include <mach/cthreads.h>
3227 typedef cthread_t perl_os_thread;
3228 typedef mutex_t perl_mutex;
3229 typedef condition_t perl_cond;
3230 typedef void * perl_key;
3231 # elif defined(I_PTHREAD) /* Posix threads */
3232 # include <pthread.h>
3233 typedef pthread_t perl_os_thread;
3234 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3235 typedef pthread_cond_t perl_cond;
3236 typedef pthread_key_t perl_key;
3238 #endif /* USE_ITHREADS */
3240 #ifdef PERL_TSA_ACTIVE
3241 /* Since most pthread mutex interfaces have not been annotated, we
3242 * need to have these wrappers. The NO_TSA annotation is quite ugly
3243 * but it cannot be avoided in plain C, unlike in C++, where one could
3244 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3246 * The bodies of these wrappers are in util.c
3248 * TODO: however, some platforms are starting to get these clang
3249 * thread safety annotations for pthreads, for example FreeBSD.
3250 * Do we need a way to a bypass these wrappers? */
3251 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3252 PERL_TSA_ACQUIRE(*mutex)
3254 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3255 PERL_TSA_RELEASE(*mutex)
3264 # include "netware.h"
3267 #define STATUS_UNIX PL_statusvalue
3269 # define STATUS_NATIVE PL_statusvalue_vms
3271 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3272 * its contents can not be trusted. Unfortunately, Perl seems to check
3273 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3276 # include <stsdef.h>
3278 /* Presume this because if VMS changes it, it will require a new
3279 * set of APIs for waiting on children for binary compatibility.
3281 # define child_offset_bits (8)
3282 # ifndef C_FAC_POSIX
3283 # define C_FAC_POSIX 0x35A000
3286 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3287 * platform from the existing UNIX or Native status values.
3290 # define STATUS_EXIT \
3291 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3292 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3295 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3296 * exit code and shifts the UNIX value over the correct number of bits to
3297 * be a child status. Usually the number of bits is 8, but that could be
3298 * platform dependent. The NATIVE status code is presumed to have either
3299 * from a child process.
3302 /* This is complicated. The child processes return a true native VMS
3303 status which must be saved. But there is an assumption in Perl that
3304 the UNIX child status has some relationship to errno values, so
3305 Perl tries to translate it to text in some of the tests.
3306 In order to get the string translation correct, for the error, errno
3307 must be EVMSERR, but that generates a different text message
3308 than what the test programs are expecting. So an errno value must
3309 be derived from the native status value when an error occurs.
3310 That will hide the true native status message. With this version of
3311 perl, the true native child status can always be retrieved so that
3312 is not a problem. But in this case, Pl_statusvalue and errno may
3313 have different values in them.
3316 # define STATUS_NATIVE_CHILD_SET(n) \
3318 I32 evalue = (I32)n; \
3319 if (evalue == EVMSERR) { \
3320 PL_statusvalue_vms = vaxc$errno; \
3321 PL_statusvalue = evalue; \
3323 PL_statusvalue_vms = evalue; \
3324 if (evalue == -1) { \
3325 PL_statusvalue = -1; \
3326 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3328 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3329 set_vaxc_errno(evalue); \
3330 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3331 set_errno(EVMSERR); \
3332 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3333 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3337 # ifdef VMSISH_STATUS
3338 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3340 # define STATUS_CURRENT STATUS_UNIX
3343 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3344 * the NATIVE status to an equivalent value. Can not be used to translate
3345 * exit code values as exit code values are not guaranteed to have any
3346 * relationship at all to errno values.
3347 * This is used when Perl is forcing errno to have a specific value.
3349 # define STATUS_UNIX_SET(n) \
3351 I32 evalue = (I32)n; \
3352 PL_statusvalue = evalue; \
3353 if (PL_statusvalue != -1) { \
3354 if (PL_statusvalue != EVMSERR) { \
3355 PL_statusvalue &= 0xFFFF; \
3356 if (MY_POSIX_EXIT) \
3357 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3358 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3361 PL_statusvalue_vms = vaxc$errno; \
3364 else PL_statusvalue_vms = SS$_ABORT; \
3365 set_vaxc_errno(PL_statusvalue_vms); \
3368 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3369 * the NATIVE error status based on it.
3371 * When in the default mode to comply with the Perl VMS documentation,
3372 * 0 is a success and any other code sets the NATIVE status to a failure
3373 * code of SS$_ABORT.
3375 * In the new POSIX EXIT mode, native status will be set so that the
3376 * actual exit code will can be retrieved by the calling program or
3379 * If the exit code is not clearly a UNIX parent or child exit status,
3380 * it will be passed through as a VMS status.
3383 # define STATUS_UNIX_EXIT_SET(n) \
3385 I32 evalue = (I32)n; \
3386 PL_statusvalue = evalue; \
3387 if (MY_POSIX_EXIT) { \
3388 if (evalue <= 0xFF00) { \
3389 if (evalue > 0xFF) \
3390 evalue = (evalue >> child_offset_bits) & 0xFF; \
3391 PL_statusvalue_vms = \
3392 (C_FAC_POSIX | (evalue << 3 ) | \
3393 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3394 } else /* forgive them Perl, for they have sinned */ \
3395 PL_statusvalue_vms = evalue; \
3398 PL_statusvalue_vms = SS$_NORMAL; \
3399 else if (evalue <= 0xFF00) \
3400 PL_statusvalue_vms = SS$_ABORT; \
3401 else { /* forgive them Perl, for they have sinned */ \
3402 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3403 else PL_statusvalue_vms = vaxc$errno; \
3404 /* And obviously used a VMS status value instead of UNIX */ \
3405 PL_statusvalue = EVMSERR; \
3407 set_vaxc_errno(PL_statusvalue_vms); \
3412 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3413 * and sets the NATIVE error status based on it. This special case
3414 * is needed to maintain compatibility with past VMS behavior.
3416 * In the default mode on VMS, this number is passed through as
3417 * both the NATIVE and UNIX status. Which makes it different
3418 * that the STATUS_UNIX_EXIT_SET.
3420 * In the new POSIX EXIT mode, native status will be set so that the
3421 * actual exit code will can be retrieved by the calling program or
3424 * A POSIX exit code is from 0 to 255. If the exit code is higher
3425 * than this, it needs to be assumed that it is a VMS exit code and
3429 # define STATUS_EXIT_SET(n) \
3431 I32 evalue = (I32)n; \
3432 PL_statusvalue = evalue; \
3433 if (MY_POSIX_EXIT) \
3434 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3435 PL_statusvalue_vms = \
3436 (C_FAC_POSIX | (evalue << 3 ) | \
3437 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3439 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3440 set_vaxc_errno(PL_statusvalue_vms); \
3444 /* This macro forces a success status */
3445 # define STATUS_ALL_SUCCESS \
3446 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3448 /* This macro forces a failure status */
3449 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3450 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3451 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3453 #elif defined(__amigaos4__)
3454 /* A somewhat experimental attempt to simulate posix return code values */
3455 # define STATUS_NATIVE PL_statusvalue_posix
3456 # define STATUS_NATIVE_CHILD_SET(n) \
3458 PL_statusvalue_posix = (n); \
3459 if (PL_statusvalue_posix < 0) { \
3460 PL_statusvalue = -1; \
3463 PL_statusvalue = n << 8; \
3466 # define STATUS_UNIX_SET(n) \
3468 PL_statusvalue = (n); \
3469 if (PL_statusvalue != -1) \
3470 PL_statusvalue &= 0xFFFF; \
3472 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3473 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3474 # define STATUS_CURRENT STATUS_UNIX
3475 # define STATUS_EXIT STATUS_UNIX
3476 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3477 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3480 # define STATUS_NATIVE PL_statusvalue_posix
3481 # if defined(WCOREDUMP)
3482 # define STATUS_NATIVE_CHILD_SET(n) \
3484 PL_statusvalue_posix = (n); \
3485 if (PL_statusvalue_posix == -1) \
3486 PL_statusvalue = -1; \
3489 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3490 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3491 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3494 # elif defined(WIFEXITED)
3495 # define STATUS_NATIVE_CHILD_SET(n) \
3497 PL_statusvalue_posix = (n); \
3498 if (PL_statusvalue_posix == -1) \
3499 PL_statusvalue = -1; \
3502 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3503 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3507 # define STATUS_NATIVE_CHILD_SET(n) \
3509 PL_statusvalue_posix = (n); \
3510 if (PL_statusvalue_posix == -1) \
3511 PL_statusvalue = -1; \
3514 PL_statusvalue_posix & 0xFFFF; \
3518 # define STATUS_UNIX_SET(n) \
3520 PL_statusvalue = (n); \
3521 if (PL_statusvalue != -1) \
3522 PL_statusvalue &= 0xFFFF; \
3524 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3525 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3526 # define STATUS_CURRENT STATUS_UNIX
3527 # define STATUS_EXIT STATUS_UNIX
3528 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3529 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3532 /* flags in PL_exit_flags for nature of exit() */
3533 #define PERL_EXIT_EXPECTED 0x01
3534 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3535 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3536 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3539 /* format to use for version numbers in file/directory names */
3540 /* XXX move to Configure? */
3541 /* This was only ever used for the current version, and that can be done at
3542 compile time, as PERL_FS_VERSION, so should we just delete it? */
3543 # ifndef PERL_FS_VER_FMT
3544 # define PERL_FS_VER_FMT "%d.%d.%d"
3548 #ifndef PERL_FS_VERSION
3549 # define PERL_FS_VERSION PERL_VERSION_STRING
3552 /* This defines a way to flush all output buffers. This may be a
3553 * performance issue, so we allow people to disable it. Also, if
3554 * we are using stdio, there are broken implementations of fflush(NULL)
3555 * out there, Solaris being the most prominent.
3557 #ifndef PERL_FLUSHALL_FOR_CHILD
3558 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3559 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3560 # elif defined(FFLUSH_ALL)
3561 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3563 # define PERL_FLUSHALL_FOR_CHILD NOOP
3567 #ifndef PERL_WAIT_FOR_CHILDREN
3568 # define PERL_WAIT_FOR_CHILDREN NOOP
3571 /* the traditional thread-unsafe notion of "current interpreter". */
3572 #ifndef PERL_SET_INTERP
3573 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3576 #ifndef PERL_GET_INTERP
3577 # define PERL_GET_INTERP (PL_curinterp)
3580 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3581 # ifdef MULTIPLICITY
3582 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3584 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3588 This replaces the previous %_ "hack" by the "%p" hacks.
3589 All that is required is that the perl source does not
3590 use "%-p" or "%-<number>p" or "%<number>p" formats.
3591 These formats will still work in perl code.
3592 See comments in sv.c for further details.
3594 Robin Barker 2005-07-14
3596 No longer use %1p for VDf = %vd. RMB 2007-10-19
3600 # define SVf_(n) "-" STRINGIFY(n) "p"
3608 # define SVf32 SVf_(32)
3612 # define SVf256 SVf_(256)
3615 #define SVfARG(p) ((void*)(p))
3621 /* Not ideal, but we cannot easily include a number in an already-numeric
3622 * format sequence. */
3624 # define HEKf256 "3p"
3627 #define HEKfARG(p) ((void*)(p))
3630 =for apidoc Amnh||UTF8f
3631 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3634 * %4p is a custom format
3637 # define UTF8f "d%" UVuf "%4p"
3639 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3642 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3645 /* not used; but needed for backward compatibility with XS code? - RMB */
3651 #if !defined(DEBUGGING) && !defined(NDEBUG)
3656 /* For functions that are marked as __attribute__noreturn__, it's not
3657 appropriate to call return. In either case, include the lint directive.
3659 #ifdef HASATTRIBUTE_NORETURN
3660 # define NORETURN_FUNCTION_END NOT_REACHED;
3662 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3665 #ifdef HAS_BUILTIN_EXPECT
3666 # define EXPECT(expr,val) __builtin_expect(expr,val)
3668 # define EXPECT(expr,val) (expr)
3672 =for apidoc_section Compiler directives
3674 =for apidoc AmU|bool|LIKELY|const bool expr
3676 Returns the input unchanged, but at the same time it gives a branch prediction
3677 hint to the compiler that this condition is likely to be true.
3679 =for apidoc AmU|bool|UNLIKELY|const bool expr
3681 Returns the input unchanged, but at the same time it gives a branch prediction
3682 hint to the compiler that this condition is likely to be false.
3686 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3687 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3689 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3693 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3694 time invariants. That is, their argument must be a constant expression that
3695 can be verified by the compiler. This expression can contain anything that's
3696 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3697 the expression evaluates to 0, compilation fails.
3698 Because they generate no runtime code (i.e. their use is "free"), they're
3699 always active, even under non-DEBUGGING builds.
3700 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3701 file scope (outside of any function).
3702 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3705 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3706 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3707 || (__STDC_VERSION__ - 0) >= 201101L)) \
3708 || (defined(__cplusplus) && __cplusplus >= 201103L))
3709 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3710 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3711 matter what <assert.h> says.
3713 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3715 /* We use a bit-field instead of an array because gcc accepts
3716 'typedef char x[n]' where n is not a compile-time constant.
3717 We want to enforce constantness.
3719 # define STATIC_ASSERT_2(COND, SUFFIX) \
3721 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3722 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3723 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3724 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3726 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3727 error (static_assert is a declaration, and only statements can have labels).
3729 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3731 #ifndef __has_builtin
3732 # define __has_builtin(x) 0 /* not a clang style compiler */
3735 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3736 hint to a compiler about a statement of fact in a function call free
3737 expression, which allows the compiler to generate better machine code.
3738 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3739 the control path is unreachable. In a for loop, ASSUME can be used to hint
3740 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3741 intrinsic function, see its documents for more details.
3745 # if __has_builtin(__builtin_unreachable) \
3746 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3747 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3748 # elif defined(_MSC_VER)
3749 # define ASSUME(x) __assume(x)
3750 # elif defined(__ARMCC_VERSION) /* untested */
3751 # define ASSUME(x) __promise(x)
3753 /* a random compiler might define assert to its own special optimization token
3754 so pass it through to C lib as a last resort */
3755 # define ASSUME(x) assert(x)
3758 # define ASSUME(x) assert(x)
3761 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3762 # define NOT_REACHED
3763 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3764 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3765 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3767 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3770 /* Some unistd.h's give a prototype for pause() even though
3771 HAS_PAUSE ends up undefined. This causes the #define
3772 below to be rejected by the compiler. Sigh.
3777 #define Pause() sleep((32767<<16)+32767)
3781 # ifdef IOCPARM_MASK
3782 /* on BSDish systems we're safe */
3783 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3784 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3785 /* on Linux systems we're safe; except when we're not [perl #38223] */
3786 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3788 /* otherwise guess at what's safe */
3789 # define IOCPARM_LEN(x) 256
3793 #if defined(__CYGWIN__)
3795 * This symbol, if defined, indicates that the program should
3796 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3797 * that a file is in "binary" mode -- that is, that no translation
3798 * of bytes occurs on read or write operations.
3800 # define USEMYBINMODE /**/
3801 # include <io.h> /* for setmode() prototype */
3802 # define my_binmode(fp, iotype, mode) \
3803 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3807 void init_os_extras(void);
3810 #ifdef UNION_ANY_DEFINITION
3811 UNION_ANY_DEFINITION;
3829 void (*any_dptr) (void*);
3830 void (*any_dxptr) (pTHX_ void*);
3834 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3836 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3837 #define FILTER_DATA(idx) \
3838 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3839 #define FILTER_ISREADER(idx) \
3840 (PL_parser && PL_parser->rsfp_filters \
3841 && idx >= AvFILLp(PL_parser->rsfp_filters))
3842 #define PERL_FILTER_EXISTS(i) \
3843 (PL_parser && PL_parser->rsfp_filters \
3844 && (i) < av_count(PL_parser->rsfp_filters))
3846 #if defined(_AIX) && !defined(_AIX43)
3847 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3848 /* We cannot include <crypt.h> to get the struct crypt_data
3849 * because of setkey prototype problems when threading */
3850 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3851 /* From OSF, Not needed in AIX
3859 #endif /* threading */
3862 #ifndef PERL_CALLCONV
3864 # define PERL_CALLCONV extern "C"
3866 # define PERL_CALLCONV
3869 #ifndef PERL_CALLCONV_NO_RET
3870 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3873 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3874 dont have a noreturn as a declaration specifier
3876 #ifndef PERL_STATIC_NO_RET
3877 # define PERL_STATIC_NO_RET STATIC
3879 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3880 builds that dont have a noreturn as a declaration specifier
3882 #ifndef PERL_STATIC_INLINE_NO_RET
3883 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3886 #ifndef PERL_STATIC_FORCE_INLINE
3887 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3890 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3891 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3895 # include "iperlsys.h"
3898 #ifdef __LIBCATAMOUNT__
3899 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3901 #define FAKE_BIT_BUCKET
3904 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3905 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3906 * Configure, despite their names being similar to other defines like
3907 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3908 * hashes. Therefore to enable/disable the hash randomisation defines
3909 * use the Configure -Accflags=... instead. */
3910 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3911 # define USE_HASH_SEED
3917 /* macros to define bit-fields in structs. */
3918 #ifndef PERL_BITFIELD8
3919 # define PERL_BITFIELD8 U8
3921 #ifndef PERL_BITFIELD16
3922 # define PERL_BITFIELD16 U16
3924 #ifndef PERL_BITFIELD32
3925 # define PERL_BITFIELD32 U32
3935 #include "opnames.h"
3942 #include "warnings.h"
3945 /* these would be in doio.h if there was such a file */
3946 #define my_stat() my_stat_flags(SV_GMAGIC)
3947 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3949 /* defined in sv.c, but also used in [ach]v.c */
3952 #undef _XPVCV_COMMON
3956 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3958 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3960 /* These have to be predeclared, as they are used in proto.h which is #included
3961 * before their definitions in regcomp.h. */
3964 typedef struct regnode_charclass regnode_charclass;
3966 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3967 * used under /l matching */
3968 typedef struct regnode_charclass_posixl regnode_charclass_class;
3969 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3971 typedef struct regnode_ssc regnode_ssc;
3972 typedef struct RExC_state_t RExC_state_t;
3973 struct _reg_trie_data;
3977 struct ptr_tbl_ent {
3978 struct ptr_tbl_ent* next;
3984 struct ptr_tbl_ent** tbl_ary;
3987 struct ptr_tbl_arena *tbl_arena;
3988 struct ptr_tbl_ent *tbl_arena_next;
3989 struct ptr_tbl_ent *tbl_arena_end;
3992 #if defined(htonl) && !defined(HAS_HTONL)
3995 #if defined(htons) && !defined(HAS_HTONS)
3998 #if defined(ntohl) && !defined(HAS_NTOHL)
4001 #if defined(ntohs) && !defined(HAS_NTOHS)
4009 # if (BYTEORDER & 0xffff) == 0x4321
4010 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4011 re-order their values. However, to behave identically to the alternative
4012 implementations, they should truncate to the correct size. */
4013 # define ntohl(x) ((x)&0xFFFFFFFF)
4014 # define htonl(x) ntohl(x)
4015 # define ntohs(x) ((x)&0xFFFF)
4016 # define htons(x) ntohs(x)
4017 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4019 /* Note that we can't straight out declare our own htonl and htons because
4020 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4021 to avoid the overhead of initialising the socket subsystem, but the headers
4022 that *declare* the various functions are still seen. If we declare our own
4023 htonl etc they will clash with the declarations in the Win32 headers. */
4025 PERL_STATIC_INLINE U32
4026 my_swap32(const U32 x) {
4027 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4028 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4031 PERL_STATIC_INLINE U16
4032 my_swap16(const U16 x) {
4033 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4036 # define htonl(x) my_swap32(x)
4037 # define ntohl(x) my_swap32(x)
4038 # define ntohs(x) my_swap16(x)
4039 # define htons(x) my_swap16(x)
4041 # error "Unsupported byteorder"
4042 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4043 the error message. Please check the value of the macro BYTEORDER, as defined
4044 in config.h. The values of BYTEORDER we expect are
4046 big endian little endian
4047 32 bit 0x4321 0x1234
4048 64 bit 0x87654321 0x12345678
4050 If you have a system with a different byte order, please see
4051 pod/perlhack.pod for how to submit a patch to add supporting code.
4057 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4060 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4061 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4062 re-order their values. However, to behave identically to the alternative
4063 implementations, they should truncate to the correct size. */
4064 # define vtohl(x) ((x)&0xFFFFFFFF)
4065 # define vtohs(x) ((x)&0xFFFF)
4066 # define htovl(x) vtohl(x)
4067 # define htovs(x) vtohs(x)
4068 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4069 # define vtohl(x) ((((x)&0xFF)<<24) \
4071 +(((x)&0x0000FF00)<<8) \
4072 +(((x)&0x00FF0000)>>8) )
4073 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4074 # define htovl(x) vtohl(x)
4075 # define htovs(x) vtohs(x)
4077 # error "Unsupported byteorder"
4078 /* If you have need for current perl on PDP-11 or similar, and can help test
4079 that blead keeps working on a mixed-endian system, then see
4080 pod/perlhack.pod for how to submit patches to things working again. */
4083 /* *MAX Plus 1. A floating point value.
4084 Hopefully expressed in a way that dodgy floating point can't mess up.
4085 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4087 May find that some broken compiler will want the value cast to I32.
4088 [after the shift, as signed >> may not be as secure as unsigned >>]
4090 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4091 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4092 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4093 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4094 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4096 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4098 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4099 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4100 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4102 /* This may look like unnecessary jumping through hoops, but converting
4103 out of range floating point values to integers *is* undefined behaviour,
4104 and it is starting to bite.
4107 #define I_32(what) (cast_i32((NV)(what)))
4108 #define U_32(what) (cast_ulong((NV)(what)))
4109 #define I_V(what) (cast_iv((NV)(what)))
4110 #define U_V(what) (cast_uv((NV)(what)))
4112 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4113 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4114 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4115 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4116 : ((n) < U32_MAX_P1 ? (U32) (n) \
4117 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4118 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4119 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4120 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4121 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4122 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4123 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4126 #define U_S(what) ((U16)U_32(what))
4127 #define U_I(what) ((unsigned int)U_32(what))
4128 #define U_L(what) U_32(what)
4131 # ifndef Perl_signbit
4132 # define Perl_signbit signbit
4136 /* These do not care about the fractional part, only about the range. */
4137 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4138 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4140 /* Used with UV/IV arguments: */
4141 /* XXXX: need to speed it up */
4142 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4143 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4151 Uid_t getuid (void);
4152 Uid_t geteuid (void);
4153 Gid_t getgid (void);
4154 Gid_t getegid (void);
4158 #ifndef Perl_debug_log
4159 # define Perl_debug_log PerlIO_stderr()
4162 #ifndef Perl_error_log
4163 # define Perl_error_log (PL_stderrgv \
4164 && isGV(PL_stderrgv) \
4165 && GvIOp(PL_stderrgv) \
4166 && IoOFP(GvIOp(PL_stderrgv)) \
4167 ? IoOFP(GvIOp(PL_stderrgv)) \
4172 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4173 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4174 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4175 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4176 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4177 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4178 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4179 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4180 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4181 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4182 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4183 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4184 /* U is reserved for Unofficial, exploratory hacking */
4185 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4187 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4188 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4189 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4190 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4191 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4192 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4193 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4194 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4195 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4196 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4197 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4198 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4199 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4200 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4201 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4202 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4204 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4205 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4207 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4208 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4209 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4210 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4211 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4212 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4213 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4214 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4215 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4216 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4217 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4218 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4219 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4220 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4221 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4222 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4223 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4224 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4225 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4226 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4227 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4228 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4229 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4230 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4231 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4232 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4233 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4234 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4235 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4236 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4237 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4238 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4239 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4243 # define DEBUG_p_TEST DEBUG_p_TEST_
4244 # define DEBUG_s_TEST DEBUG_s_TEST_
4245 # define DEBUG_l_TEST DEBUG_l_TEST_
4246 # define DEBUG_t_TEST DEBUG_t_TEST_
4247 # define DEBUG_o_TEST DEBUG_o_TEST_
4248 # define DEBUG_c_TEST DEBUG_c_TEST_
4249 # define DEBUG_P_TEST DEBUG_P_TEST_
4250 # define DEBUG_m_TEST DEBUG_m_TEST_
4251 # define DEBUG_f_TEST DEBUG_f_TEST_
4252 # define DEBUG_r_TEST DEBUG_r_TEST_
4253 # define DEBUG_x_TEST DEBUG_x_TEST_
4254 # define DEBUG_u_TEST DEBUG_u_TEST_
4255 # define DEBUG_U_TEST DEBUG_U_TEST_
4256 # define DEBUG_X_TEST DEBUG_X_TEST_
4257 # define DEBUG_D_TEST DEBUG_D_TEST_
4258 # define DEBUG_S_TEST DEBUG_S_TEST_
4259 # define DEBUG_T_TEST DEBUG_T_TEST_
4260 # define DEBUG_R_TEST DEBUG_R_TEST_
4261 # define DEBUG_J_TEST DEBUG_J_TEST_
4262 # define DEBUG_v_TEST DEBUG_v_TEST_
4263 # define DEBUG_C_TEST DEBUG_C_TEST_
4264 # define DEBUG_A_TEST DEBUG_A_TEST_
4265 # define DEBUG_q_TEST DEBUG_q_TEST_
4266 # define DEBUG_M_TEST DEBUG_M_TEST_
4267 # define DEBUG_B_TEST DEBUG_B_TEST_
4268 # define DEBUG_L_TEST DEBUG_L_TEST_
4269 # define DEBUG_i_TEST DEBUG_i_TEST_
4270 # define DEBUG_y_TEST DEBUG_y_TEST_
4271 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4272 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4273 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4274 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4275 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4277 # define PERL_DEB(a) a
4278 # define PERL_DEB2(a,b) a
4279 # define PERL_DEBUG(a) if (PL_debug) a
4280 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4281 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4282 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4283 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4284 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4285 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4286 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4288 /* Temporarily turn off memory debugging in case the a
4289 * does memory allocation, either directly or indirectly. */
4290 # define DEBUG_m(a) \
4292 if (PERL_GET_INTERP) { \
4294 if (DEBUG_m_TEST) { \
4295 PL_debug &= ~DEBUG_m_FLAG; \
4297 PL_debug |= DEBUG_m_FLAG; \
4302 # define DEBUG__(t, a) \
4304 if (t) STMT_START {a;} STMT_END; \
4307 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4309 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4310 # ifdef PERL_EXT_RE_BUILD
4311 # define DEBUG_r(a) STMT_START {a;} STMT_END
4313 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4314 # endif /* PERL_EXT_RE_BUILD */
4316 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4317 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4318 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4319 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4320 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4321 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4322 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4323 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4324 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4325 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4327 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4328 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4329 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4330 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4331 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4332 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4333 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4334 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4335 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4336 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4337 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4338 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4340 #else /* ! DEBUGGING below */
4342 # define DEBUG_p_TEST (0)
4343 # define DEBUG_s_TEST (0)
4344 # define DEBUG_l_TEST (0)
4345 # define DEBUG_t_TEST (0)
4346 # define DEBUG_o_TEST (0)
4347 # define DEBUG_c_TEST (0)
4348 # define DEBUG_P_TEST (0)
4349 # define DEBUG_m_TEST (0)
4350 # define DEBUG_f_TEST (0)
4351 # define DEBUG_r_TEST (0)
4352 # define DEBUG_x_TEST (0)
4353 # define DEBUG_u_TEST (0)
4354 # define DEBUG_U_TEST (0)
4355 # define DEBUG_X_TEST (0)
4356 # define DEBUG_D_TEST (0)
4357 # define DEBUG_S_TEST (0)
4358 # define DEBUG_T_TEST (0)
4359 # define DEBUG_R_TEST (0)
4360 # define DEBUG_J_TEST (0)
4361 # define DEBUG_v_TEST (0)
4362 # define DEBUG_C_TEST (0)
4363 # define DEBUG_A_TEST (0)
4364 # define DEBUG_q_TEST (0)
4365 # define DEBUG_M_TEST (0)
4366 # define DEBUG_B_TEST (0)
4367 # define DEBUG_L_TEST (0)
4368 # define DEBUG_i_TEST (0)
4369 # define DEBUG_y_TEST (0)
4370 # define DEBUG_Xv_TEST (0)
4371 # define DEBUG_Uv_TEST (0)
4372 # define DEBUG_Pv_TEST (0)
4373 # define DEBUG_Lv_TEST (0)
4374 # define DEBUG_yv_TEST (0)
4376 # define PERL_DEB(a)
4377 # define PERL_DEB2(a,b) b
4378 # define PERL_DEBUG(a)
4406 # define DEBUG_Xv(a)
4407 # define DEBUG_Uv(a)
4408 # define DEBUG_Pv(a)
4409 # define DEBUG_Lv(a)
4410 # define DEBUG_yv(a)
4411 #endif /* DEBUGGING */
4414 #define DEBUG_SCOPE(where) \
4416 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4417 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4418 __FILE__, __LINE__));
4420 /* Keep the old croak based assert for those who want it, and as a fallback if
4421 the platform is so heretically non-ANSI that it can't assert. */
4423 #define Perl_assert(what) PERL_DEB2( \
4424 ((what) ? ((void) 0) : \
4425 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4426 "\", line %d", STRINGIFY(what), __LINE__), \
4427 (void) 0)), ((void)0))
4429 /* assert() gets defined if DEBUGGING.
4430 * If no DEBUGGING, the <assert.h> has not been included. */
4432 # define assert(what) Perl_assert(what)
4435 # define assert_(what) assert(what),
4437 # define assert_(what)
4441 I32 (*uf_val)(pTHX_ IV, SV*);
4442 I32 (*uf_set)(pTHX_ IV, SV*);
4446 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4447 * XS code wanting to be backward compatible can do something
4448 * like the following:
4450 #ifndef PERL_MG_UFUNC
4451 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4454 static PERL_MG_UFUNC(foo_get, index, val)
4464 #ifndef PERL_MG_UFUNC
4465 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4470 /* isfinite and others are here rather than in math.h as C99 stipulates */
4475 # if !defined(WIN32) && !defined(VMS)
4477 char *crypt (const char*, const char*);
4479 # endif /* !WIN32 */
4482 char *getlogin (void);
4484 # endif /* !WIN32 */
4485 #endif /* !__cplusplus */
4487 /* Fixme on VMS. This needs to be a run-time, not build time options */
4488 /* Also rename() is affected by this */
4489 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4490 #define UNLINK unlnk
4491 I32 unlnk (pTHX_ const char*);
4493 #define UNLINK PerlLIO_unlink
4496 /* some versions of glibc are missing the setresuid() proto */
4497 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4498 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4500 /* some versions of glibc are missing the setresgid() proto */
4501 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4502 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4505 #ifndef HAS_SETREUID
4506 # ifdef HAS_SETRESUID
4507 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4508 # define HAS_SETREUID
4511 #ifndef HAS_SETREGID
4512 # ifdef HAS_SETRESGID
4513 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4514 # define HAS_SETREGID
4518 /* Sighandler_t defined in iperlsys.h */
4520 #ifdef HAS_SIGACTION
4521 typedef struct sigaction Sigsave_t;
4523 typedef Sighandler_t Sigsave_t;
4534 # define RUNOPS_DEFAULT Perl_runops_debug
4536 # define RUNOPS_DEFAULT Perl_runops_standard
4539 #if defined(USE_PERLIO)
4540 EXTERN_C void PerlIO_teardown(void);
4541 # ifdef USE_ITHREADS
4542 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4543 # define PERLIO_TERM \
4545 PerlIO_teardown(); \
4546 MUTEX_DESTROY(&PL_perlio_mutex);\
4549 # define PERLIO_INIT
4550 # define PERLIO_TERM PerlIO_teardown()
4553 # define PERLIO_INIT
4554 # define PERLIO_TERM
4558 # ifdef MUTEX_INIT_CALLS_MALLOC
4559 # define MALLOC_INIT \
4561 PL_malloc_mutex = NULL; \
4562 MUTEX_INIT(&PL_malloc_mutex); \
4564 # define MALLOC_TERM \
4566 perl_mutex tmp = PL_malloc_mutex; \
4567 PL_malloc_mutex = NULL; \
4568 MUTEX_DESTROY(&tmp); \
4571 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4572 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4575 # define MALLOC_INIT
4576 # define MALLOC_TERM
4579 #if defined(PERL_IMPLICIT_CONTEXT)
4581 struct perl_memory_debug_header;
4582 struct perl_memory_debug_header {
4584 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4587 struct perl_memory_debug_header *prev;
4588 struct perl_memory_debug_header *next;
4589 # ifdef PERL_DEBUG_READONLY_COW
4594 #elif defined(PERL_DEBUG_READONLY_COW)
4596 struct perl_memory_debug_header;
4597 struct perl_memory_debug_header {
4603 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4605 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4606 (sizeof(struct perl_memory_debug_header) + \
4607 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4608 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4611 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4614 #ifdef PERL_TRACK_MEMPOOL
4615 # ifdef PERL_DEBUG_READONLY_COW
4616 # define INIT_TRACK_MEMPOOL(header, interp) \
4618 (header).interpreter = (interp); \
4619 (header).prev = (header).next = &(header); \
4620 (header).readonly = 0; \
4623 # define INIT_TRACK_MEMPOOL(header, interp) \
4625 (header).interpreter = (interp); \
4626 (header).prev = (header).next = &(header); \
4630 # define INIT_TRACK_MEMPOOL(header, interp)
4633 #ifdef I_MALLOCMALLOC
4634 /* Needed for malloc_size(), malloc_good_size() on some systems */
4635 # include <malloc/malloc.h>
4639 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4641 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4642 # ifdef PERL_TRACK_MEMPOOL
4643 # define Perl_safesysmalloc_size(where) \
4644 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4646 # define Perl_safesysmalloc_size(where) malloc_size(where)
4649 # ifdef HAS_MALLOC_GOOD_SIZE
4650 # ifdef PERL_TRACK_MEMPOOL
4651 # define Perl_malloc_good_size(how_much) \
4652 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4654 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4657 /* Having this as the identity operation makes some code simpler. */
4658 # define Perl_malloc_good_size(how_much) (how_much)
4662 typedef int (*runops_proc_t)(pTHX);
4663 typedef void (*share_proc_t) (pTHX_ SV *sv);
4664 typedef int (*thrhook_proc_t) (pTHX);
4665 typedef OP* (*PPADDR_t[]) (pTHX);
4666 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4667 typedef void (*despatch_signals_proc_t) (pTHX);
4669 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4670 # include <crt_externs.h> /* for the env array */
4671 # define environ (*_NSGetEnviron())
4672 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4673 /* VMS and some other platforms don't use the environ array */
4674 EXTERN_C char **environ; /* environment variables supplied via exec */
4677 #define PERL_PATCHLEVEL_H_IMPLICIT
4678 #include "patchlevel.h"
4679 #undef PERL_PATCHLEVEL_H_IMPLICIT
4681 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4682 STRINGIFY(PERL_VERSION) "." \
4683 STRINGIFY(PERL_SUBVERSION)
4685 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4686 STRINGIFY(PERL_API_VERSION) "." \
4687 STRINGIFY(PERL_API_SUBVERSION)
4691 /* handy constants */
4692 EXTCONST char PL_warn_uninit[]
4693 INIT("Use of uninitialized value%s%s%s");
4694 EXTCONST char PL_warn_uninit_sv[]
4695 INIT("Use of uninitialized value%" SVf "%s%s");
4696 EXTCONST char PL_warn_nosemi[]
4697 INIT("Semicolon seems to be missing");
4698 EXTCONST char PL_warn_reserved[]
4699 INIT("Unquoted string \"%s\" may clash with future reserved word");
4700 EXTCONST char PL_warn_nl[]
4701 INIT("Unsuccessful %s on filename containing newline");
4702 EXTCONST char PL_no_wrongref[]
4703 INIT("Can't use %s ref as %s ref");
4704 /* The core no longer needs this here. If you require the string constant,
4705 please inline a copy into your own code. */
4706 EXTCONST char PL_no_symref[] __attribute__deprecated__
4707 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4708 EXTCONST char PL_no_symref_sv[]
4709 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4711 EXTCONST char PL_no_usym[]
4712 INIT("Can't use an undefined value as %s reference");
4713 EXTCONST char PL_no_aelem[]
4714 INIT("Modification of non-creatable array value attempted, subscript %d");
4715 EXTCONST char PL_no_helem_sv[]
4716 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4717 EXTCONST char PL_no_modify[]
4718 INIT("Modification of a read-only value attempted");
4719 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4720 INIT("Out of memory!\n");
4721 EXTCONST char PL_no_security[]
4722 INIT("Insecure dependency in %s%s");
4723 EXTCONST char PL_no_sock_func[]
4724 INIT("Unsupported socket function \"%s\" called");
4725 EXTCONST char PL_no_dir_func[]
4726 INIT("Unsupported directory function \"%s\" called");
4727 EXTCONST char PL_no_func[]
4728 INIT("The %s function is unimplemented");
4729 EXTCONST char PL_no_myglob[]
4730 INIT("\"%s\" %s %s can't be in a package");
4731 EXTCONST char PL_no_localize_ref[]
4732 INIT("Can't localize through a reference");
4733 EXTCONST char PL_memory_wrap[]
4734 INIT("panic: memory wrap");
4735 EXTCONST char PL_extended_cp_format[]
4736 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4737 " and so is not portable");
4738 EXTCONST char PL_Yes[]
4740 EXTCONST char PL_No[]
4742 EXTCONST char PL_Zero[]
4744 EXTCONST char PL_hexdigit[]
4745 INIT("0123456789abcdef0123456789ABCDEF");
4747 EXTCONST STRLEN PL_WARN_ALL
4749 EXTCONST STRLEN PL_WARN_NONE
4752 /* This is constant on most architectures, a global on OS/2 */
4754 EXTCONST char PL_sh_path[]
4755 INIT(SH_PATH); /* full path of shell */
4759 EXTCONST char PL_cshname[]
4761 # define PL_cshlen (sizeof(CSH "") - 1)
4764 /* These are baked at compile time into any shared perl library.
4765 In future releases this will allow us in main() to sanity test the
4766 library we're linking against. */
4768 EXTCONST U8 PL_revision
4769 INIT(PERL_REVISION);
4770 EXTCONST U8 PL_version
4772 EXTCONST U8 PL_subversion
4773 INIT(PERL_SUBVERSION);
4775 EXTCONST char PL_uuemap[65]
4776 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4778 /* a special string address whose value is "isa", but which perl knows
4779 * to treat as if it were really "DOES" when printing the method name in
4780 * the "Can't call method '%s'" error message */
4781 EXTCONST char PL_isa_DOES[]
4785 EXTCONST char PL_uudmap[256] =
4787 # include "uuudmap.h"
4789 # include "uudmap.h"
4792 EXTCONST char PL_bitcount[256] =
4794 # include "ubitcount.h"
4796 # include "bitcount.h"
4799 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4800 EXTCONST int PL_sig_num[] = { SIG_NUM };
4802 EXTCONST char PL_uudmap[256];
4803 EXTCONST char PL_bitcount[256];
4804 EXTCONST char* const PL_sig_name[];
4805 EXTCONST int PL_sig_num[];
4808 /* fast conversion and case folding tables. The folding tables complement the
4809 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4810 * folds such as outside the range or to multiple characters. */
4815 /* The EBCDIC fold table depends on the code page, and hence is found in
4816 * ebcdic_tables.h */
4818 EXTCONST unsigned char PL_fold[] = {
4819 0, 1, 2, 3, 4, 5, 6, 7,
4820 8, 9, 10, 11, 12, 13, 14, 15,
4821 16, 17, 18, 19, 20, 21, 22, 23,
4822 24, 25, 26, 27, 28, 29, 30, 31,
4823 32, 33, 34, 35, 36, 37, 38, 39,
4824 40, 41, 42, 43, 44, 45, 46, 47,
4825 48, 49, 50, 51, 52, 53, 54, 55,
4826 56, 57, 58, 59, 60, 61, 62, 63,
4827 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4828 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4829 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4830 'x', 'y', 'z', 91, 92, 93, 94, 95,
4831 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4832 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4833 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4834 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4835 128, 129, 130, 131, 132, 133, 134, 135,
4836 136, 137, 138, 139, 140, 141, 142, 143,
4837 144, 145, 146, 147, 148, 149, 150, 151,
4838 152, 153, 154, 155, 156, 157, 158, 159,
4839 160, 161, 162, 163, 164, 165, 166, 167,
4840 168, 169, 170, 171, 172, 173, 174, 175,
4841 176, 177, 178, 179, 180, 181, 182, 183,
4842 184, 185, 186, 187, 188, 189, 190, 191,
4843 192, 193, 194, 195, 196, 197, 198, 199,
4844 200, 201, 202, 203, 204, 205, 206, 207,
4845 208, 209, 210, 211, 212, 213, 214, 215,
4846 216, 217, 218, 219, 220, 221, 222, 223,
4847 224, 225, 226, 227, 228, 229, 230, 231,
4848 232, 233, 234, 235, 236, 237, 238, 239,
4849 240, 241, 242, 243, 244, 245, 246, 247,
4850 248, 249, 250, 251, 252, 253, 254, 255
4853 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4854 0, 1, 2, 3, 4, 5, 6, 7,
4855 8, 9, 10, 11, 12, 13, 14, 15,
4856 16, 17, 18, 19, 20, 21, 22, 23,
4857 24, 25, 26, 27, 28, 29, 30, 31,
4858 32, 33, 34, 35, 36, 37, 38, 39,
4859 40, 41, 42, 43, 44, 45, 46, 47,
4860 48, 49, 50, 51, 52, 53, 54, 55,
4861 56, 57, 58, 59, 60, 61, 62, 63,
4862 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4863 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4864 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4865 'x', 'y', 'z', 91, 92, 93, 94, 95,
4866 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4867 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4868 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4869 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4870 128, 129, 130, 131, 132, 133, 134, 135,
4871 136, 137, 138, 139, 140, 141, 142, 143,
4872 144, 145, 146, 147, 148, 149, 150, 151,
4873 152, 153, 154, 155, 156, 157, 158, 159,
4874 160, 161, 162, 163, 164, 165, 166, 167,
4875 168, 169, 170, 171, 172, 173, 174, 175,
4876 176, 177, 178, 179, 180, 181, 182, 183,
4877 184, 185, 186, 187, 188, 189, 190, 191,
4878 192, 193, 194, 195, 196, 197, 198, 199,
4879 200, 201, 202, 203, 204, 205, 206, 207,
4880 208, 209, 210, 211, 212, 213, 214, 215,
4881 216, 217, 218, 219, 220, 221, 222, 223,
4882 224, 225, 226, 227, 228, 229, 230, 231,
4883 232, 233, 234, 235, 236, 237, 238, 239,
4884 240, 241, 242, 243, 244, 245, 246, 247,
4885 248, 249, 250, 251, 252, 253, 254, 255
4888 EXTCONST unsigned char PL_fold_latin1[] = {
4889 /* Full latin1 complement folding, except for three problematic code points:
4890 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4891 * fold complements outside the Latin1 range, so can't match something
4892 * that isn't in utf8.
4893 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4894 * not one, so can't be represented in this table.
4896 * All have to be specially handled */
4897 0, 1, 2, 3, 4, 5, 6, 7,
4898 8, 9, 10, 11, 12, 13, 14, 15,
4899 16, 17, 18, 19, 20, 21, 22, 23,
4900 24, 25, 26, 27, 28, 29, 30, 31,
4901 32, 33, 34, 35, 36, 37, 38, 39,
4902 40, 41, 42, 43, 44, 45, 46, 47,
4903 48, 49, 50, 51, 52, 53, 54, 55,
4904 56, 57, 58, 59, 60, 61, 62, 63,
4905 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4906 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4907 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4908 'x', 'y', 'z', 91, 92, 93, 94, 95,
4909 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4910 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4911 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4912 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4913 128, 129, 130, 131, 132, 133, 134, 135,
4914 136, 137, 138, 139, 140, 141, 142, 143,
4915 144, 145, 146, 147, 148, 149, 150,