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)
65 #ifdef PERL_GLOBAL_STRUCT_PRIVATE
66 # ifndef PERL_GLOBAL_STRUCT
67 # define PERL_GLOBAL_STRUCT
71 #ifdef PERL_GLOBAL_STRUCT
78 # ifndef PERL_IMPLICIT_CONTEXT
79 # define PERL_IMPLICIT_CONTEXT
83 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
89 #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
96 # include "symbian/symbian_proto.h"
99 /* Any stack-challenged places. The limit varies (and often
100 * is configurable), but using more than a kilobyte of stack
101 * is usually dubious in these systems. */
102 #if defined(__SYMBIAN32__)
103 /* Symbian: need to work around the SDK features. *
104 * On WINS: MS VC5 generates calls to _chkstk, *
105 * if a "large" stack frame is allocated. *
106 * gcc on MARM does not generate calls like these. */
107 # define USE_HEAP_INSTEAD_OF_STACK
110 /* Use the reentrant APIs like localtime_r and getpwent_r */
111 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
112 * XXX KEEP makedef.pl copy of this code in sync */
113 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
114 # define USE_REENTRANT_API
117 /* <--- here ends the logic shared by perl.h and makedef.pl */
119 #undef START_EXTERN_C
123 # define START_EXTERN_C extern "C" {
124 # define END_EXTERN_C }
125 # define EXTERN_C extern "C"
127 # define START_EXTERN_C
128 # define END_EXTERN_C
129 # define EXTERN_C extern
132 /* Fallback definitions in case we don't have definitions from config.h.
133 This should only matter for systems that don't use Configure and
134 haven't been modified to define PERL_STATIC_INLINE yet.
136 #if !defined(PERL_STATIC_INLINE)
137 # ifdef HAS_STATIC_INLINE
138 # define PERL_STATIC_INLINE static inline
140 # define PERL_STATIC_INLINE static
144 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
145 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
146 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
147 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
149 # define PERL_GET_VARS() PL_VarsPtr
153 /* this used to be off by default, now its on, see perlio.h */
154 #define PERLIO_FUNCS_CONST
156 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
158 #ifdef PERL_GLOBAL_STRUCT
159 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
164 #ifdef PERL_IMPLICIT_CONTEXT
165 # ifndef MULTIPLICITY
166 # define MULTIPLICITY
168 # define tTHX PerlInterpreter*
169 # define pTHX tTHX my_perl PERL_UNUSED_DECL
170 # define aTHX my_perl
171 # define aTHXa(a) aTHX = (tTHX)a
172 # ifdef PERL_GLOBAL_STRUCT
173 # define dTHXa(a) dVAR; pTHX = (tTHX)a
175 # define dTHXa(a) pTHX = (tTHX)a
177 # ifdef PERL_GLOBAL_STRUCT
178 # define dTHX dVAR; pTHX = PERL_GET_THX
180 # define dTHX pTHX = PERL_GET_THX
194 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
195 # define PERL_TRACK_MEMPOOL
198 # undef PERL_TRACK_MEMPOOL
202 # define dTHX_DEBUGGING dTHX
204 # define dTHX_DEBUGGING dNOOP
207 #define STATIC static
210 /* Do not use these macros. They were part of PERL_OBJECT, which was an
211 * implementation of multiplicity using C++ objects. They have been left
212 * here solely for the sake of XS code which has incorrectly
215 #define CPERLscope(x) x
216 #define CPERLarg void
219 #define PERL_OBJECT_THIS
220 #define _PERL_OBJECT_THIS
221 #define PERL_OBJECT_THIS_
222 #define CALL_FPTR(fptr) (*fptr)
223 #define MEMBER_TO_FPTR(name) name
224 #endif /* !PERL_CORE */
226 #define CALLRUNOPS PL_runops
228 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
230 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
231 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
232 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
233 (strbeg),(minend),(sv),(data),(flags))
234 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
235 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
236 (strend),(flags),(data))
237 #define CALLREG_INTUIT_STRING(prog) \
238 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
240 #define CALLREGFREE(prog) \
241 Perl_pregfree(aTHX_ (prog))
243 #define CALLREGFREE_PVT(prog) \
244 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
246 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
247 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
249 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
250 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
252 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
253 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
255 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
256 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
258 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
259 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
261 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
262 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
264 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
265 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
267 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
268 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
270 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
271 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
273 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
274 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
276 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
277 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
279 #define CALLREG_NAMED_BUFF_COUNT(rx) \
280 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
282 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
283 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
285 #define CALLREG_PACKAGE(rx) \
286 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
288 #if defined(USE_ITHREADS)
289 #define CALLREGDUPE(prog,param) \
290 Perl_re_dup(aTHX_ (prog),(param))
292 #define CALLREGDUPE_PVT(prog,param) \
293 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
297 /* some compilers impersonate gcc */
298 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
299 # define PERL_IS_GCC 1
302 /* In case Configure was not used (we are using a "canned config"
303 * such as Win32, or a cross-compilation setup, for example) try going
304 * by the gcc major and minor versions. One useful URL is
305 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
306 * but contrary to this information warn_unused_result seems
307 * not to be in gcc 3.3.5, at least. --jhi
308 * Also, when building extensions with an installed perl, this allows
309 * the user to upgrade gcc and get the right attributes, rather than
310 * relying on the list generated at Configure time. --AD
311 * Set these up now otherwise we get confused when some of the <*thread.h>
312 * includes below indirectly pull in <perlio.h> (which needs to know if we
313 * have HASATTRIBUTE_FORMAT).
317 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
318 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
319 # define HASATTRIBUTE_DEPRECATED
321 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
322 # define HASATTRIBUTE_FORMAT
323 # if defined __MINGW32__
324 # define PRINTF_FORMAT_NULL_OK
327 # if __GNUC__ >= 3 /* 3.0 -> */
328 # define HASATTRIBUTE_MALLOC
330 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
331 # define HASATTRIBUTE_NONNULL
333 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
334 # define HASATTRIBUTE_NORETURN
336 # if __GNUC__ >= 3 /* gcc 3.0 -> */
337 # define HASATTRIBUTE_PURE
339 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
340 # define HASATTRIBUTE_UNUSED
342 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
343 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
345 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
346 # define HASATTRIBUTE_WARN_UNUSED_RESULT
348 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
349 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
350 # define HASATTRIBUTE_ALWAYS_INLINE
353 #endif /* #ifndef PERL_MICRO */
355 #ifdef HASATTRIBUTE_DEPRECATED
356 # define __attribute__deprecated__ __attribute__((deprecated))
358 #ifdef HASATTRIBUTE_FORMAT
359 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
361 #ifdef HASATTRIBUTE_MALLOC
362 # define __attribute__malloc__ __attribute__((__malloc__))
364 #ifdef HASATTRIBUTE_NONNULL
365 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
367 #ifdef HASATTRIBUTE_NORETURN
368 # define __attribute__noreturn__ __attribute__((noreturn))
370 #ifdef HASATTRIBUTE_PURE
371 # define __attribute__pure__ __attribute__((pure))
373 #ifdef HASATTRIBUTE_UNUSED
374 # define __attribute__unused__ __attribute__((unused))
376 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
377 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
379 #ifdef HASATTRIBUTE_ALWAYS_INLINE
380 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
381 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
382 # define __attribute__always_inline__ __attribute__((always_inline))
386 /* If we haven't defined the attributes yet, define them to blank. */
387 #ifndef __attribute__deprecated__
388 # define __attribute__deprecated__
390 #ifndef __attribute__format__
391 # define __attribute__format__(x,y,z)
393 #ifndef __attribute__malloc__
394 # define __attribute__malloc__
396 #ifndef __attribute__nonnull__
397 # define __attribute__nonnull__(a)
399 #ifndef __attribute__noreturn__
400 # define __attribute__noreturn__
402 #ifndef __attribute__pure__
403 # define __attribute__pure__
405 #ifndef __attribute__unused__
406 # define __attribute__unused__
408 #ifndef __attribute__warn_unused_result__
409 # define __attribute__warn_unused_result__
411 #ifndef __attribute__always_inline__
412 # define __attribute__always_inline__
415 /* Some OS warn on NULL format to printf */
416 #ifdef PRINTF_FORMAT_NULL_OK
417 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
419 # define __attribute__format__null_ok__(x,y,z)
423 * Because of backward compatibility reasons the PERL_UNUSED_DECL
424 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
426 * Note that there are C compilers such as MetroWerks CodeWarrior
427 * which do not have an "inlined" way (like the gcc __attribute__) of
428 * marking unused variables (they need e.g. a #pragma) and therefore
429 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
430 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
434 #ifndef PERL_UNUSED_DECL
435 # define PERL_UNUSED_DECL __attribute__unused__
439 * for silencing unused variables that are actually used most of the time,
440 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
441 * or variables/arguments that are used only in certain configurations.
443 #ifndef PERL_UNUSED_ARG
444 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
446 #ifndef PERL_UNUSED_VAR
447 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
450 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
451 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
453 # define PERL_UNUSED_CONTEXT
456 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
457 * g++ allows them but seems to have problems with them
458 * (insane errors ensue).
459 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
461 #if defined(PERL_GCC_PEDANTIC) || \
462 (defined(__GNUC__) && defined(__cplusplus) && \
463 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
464 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
465 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
469 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
470 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
472 * The main reason for this is that the combination of gcc -Wunused-result
473 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
474 * be silenced with casting to void. This causes trouble when the system
475 * header files use the attribute.
477 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
478 * is there for a good reason: you might lose success/failure information,
479 * or leak resources, or changes in resources.
481 * But sometimes you just want to ignore the return value, e.g. on
482 * codepaths soon ending up in abort, or in "best effort" attempts,
483 * or in situations where there is no good way to handle failures.
485 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
486 * another possibility is that you can capture the return value
487 * and use PERL_UNUSED_VAR on that.
489 * The __typeof__() is used instead of typeof() since typeof() is not
490 * available under strict C89, and because of compilers masquerading
491 * as gcc (clang and icc), we want exactly the gcc extension
492 * __typeof__ and nothing else.
494 #ifndef PERL_UNUSED_RESULT
495 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
496 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
498 # define PERL_UNUSED_RESULT(v) ((void)(v))
502 #if defined(_MSC_VER)
503 /* XXX older MSVC versions have a smallish macro buffer */
504 #define PERL_SMALL_MACRO_BUFFER
507 /* on gcc (and clang), specify that a warning should be temporarily
510 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
512 * GCC_DIAG_RESTORE_DECL;
514 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
516 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
517 * clang only pretends to be GCC 4.2, but still supports push/pop.
519 * Note on usage: all macros must be used at a place where a declaration
520 * or statement can occur, i.e., not in the middle of an expression.
521 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
522 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
523 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
524 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
525 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
526 * and behave syntactically as statements (like NOOP).
530 #if defined(__clang__) || defined(__clang) || \
531 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
532 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
533 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
534 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
535 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
536 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
538 # define GCC_DIAG_IGNORE(w)
539 # define GCC_DIAG_RESTORE
541 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
542 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
543 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
544 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
545 /* for clang specific pragmas */
546 #if defined(__clang__) || defined(__clang)
547 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
548 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
549 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
550 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
552 # define CLANG_DIAG_IGNORE(w)
553 # define CLANG_DIAG_RESTORE
555 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
556 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
557 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
558 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
560 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
561 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
562 __pragma(warning(disable : x))
563 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
565 # define MSVC_DIAG_IGNORE(x)
566 # define MSVC_DIAG_RESTORE
568 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
569 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
570 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
571 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
573 #define NOOP /*EMPTY*/(void)0
574 #define dNOOP struct Perl___notused_struct
577 /* Don't bother defining tTHX ; using it outside
578 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
584 # define aTHXa(a) NOOP
585 # define dTHXa(a) dNOOP
603 /* these are only defined for compatibility; should not be used internally */
604 #if !defined(pTHXo) && !defined(PERL_CORE)
606 # define pTHXo_ pTHX_
608 # define aTHXo_ aTHX_
610 # define dTHXoa(x) dTHXa(x)
614 # define pTHXx PerlInterpreter *my_perl
615 # define pTHXx_ pTHXx,
616 # define aTHXx my_perl
617 # define aTHXx_ aTHXx,
621 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
622 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
623 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
624 #ifdef PERL_IMPLICIT_SYS
625 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
626 # define dTHXs dVAR; dTHX
631 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
638 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
639 # ifndef PERL_USE_GCC_BRACE_GROUPS
640 # define PERL_USE_GCC_BRACE_GROUPS
645 =head1 Miscellaneous Functions
647 =for apidoc AmnUu|void|STMT_START
649 STMT_START { statements; } STMT_END;
651 can be used as a single statement, as in
653 if (x) STMT_START { ... } STMT_END; else ...
655 These are often used in macro definitions. Note that you can't return a value
658 =for apidoc AmnUhu|void|STMT_END
662 Trying to select a version that gives no warnings...
664 #if !(defined(STMT_START) && defined(STMT_END))
665 # ifdef PERL_USE_GCC_BRACE_GROUPS
666 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
669 # define STMT_START do
670 # define STMT_END while (0)
674 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
675 # define BYTEORDER 0x1234
678 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
685 * The following contortions are brought to you on behalf of all the
686 * standards, semi-standards, de facto standards, not-so-de-facto standards
687 * of the world, as well as all the other botches anyone ever thought of.
688 * The basic theory is that if we work hard enough here, the rest of the
689 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
692 /* define this once if either system, instead of cluttering up the src */
693 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
697 /* These exist only for back-compat with XS modules. */
700 #define CAN_PROTOTYPE
707 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
708 * you get a perl without taint support, but doubtlessly with a lesser
709 * degree of support. Do not do so unless you know exactly what it means
710 * technically, have a good reason to do so, and know exactly how the
711 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
712 * a potential security risk due to flat out ignoring the security-relevant
713 * taint flags. This being said, a perl without taint support compiled in
714 * has marginal run-time performance benefits.
715 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
716 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
717 * silently ignores -t/-T instead of throwing an exception.
719 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
720 * voids your nonexistent warranty!
722 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
723 # define NO_TAINT_SUPPORT 1
726 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
727 * operations into no-ops for a very modest speed-up. Enable only if you
728 * know what you're doing: tests and CPAN modules' tests are bound to fail.
730 #ifdef NO_TAINT_SUPPORT
732 # define TAINT_NOT NOOP
733 # define TAINT_IF(c) NOOP
734 # define TAINT_ENV() NOOP
735 # define TAINT_PROPER(s) NOOP
736 # define TAINT_set(s) NOOP
738 # define TAINTING_get 0
739 # define TAINTING_set(s) NOOP
740 # define TAINT_WARN_get 0
741 # define TAINT_WARN_set(s) NOOP
743 /* Set to tainted if we are running under tainting mode */
744 # define TAINT (PL_tainted = PL_tainting)
746 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
747 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
748 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
749 /* croak or warn if tainting */
750 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
751 taint_proper(NULL, s); \
753 # define TAINT_set(s) (PL_tainted = (s))
754 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
755 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
756 # define TAINTING_set(s) (PL_tainting = (s))
757 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
761 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
764 /* flags used internally only within pp_subst and pp_substcont */
766 # define SUBST_TAINT_STR 1 /* string tainted */
767 # define SUBST_TAINT_PAT 2 /* pattern tainted */
768 # define SUBST_TAINT_REPL 4 /* replacement tainted */
769 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
770 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
773 /* XXX All process group stuff is handled in pp_sys.c. Should these
774 defines move there? If so, I could simplify this a lot. --AD 9/96.
776 /* Process group stuff changed from traditional BSD to POSIX.
777 perlfunc.pod documents the traditional BSD-style syntax, so we'll
778 try to preserve that, if possible.
781 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
782 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
783 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
784 #elif defined(HAS_SETPGRP2)
785 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
787 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
788 # define HAS_SETPGRP /* Well, effectively it does . . . */
791 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
792 our life easier :-) so we'll try it.
795 # define BSD_GETPGRP(pid) getpgid((pid))
796 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
797 # define BSD_GETPGRP(pid) getpgrp((pid))
798 #elif defined(HAS_GETPGRP2)
799 # define BSD_GETPGRP(pid) getpgrp2((pid))
801 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
802 # define HAS_GETPGRP /* Well, effectively it does . . . */
805 /* These are not exact synonyms, since setpgrp() and getpgrp() may
806 have different behaviors, but perl.h used to define USE_BSDPGRP
807 (prior to 5.003_05) so some extension might depend on it.
809 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
815 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
816 pthread.h must be included before all other header files.
818 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
819 # include <pthread.h>
822 #include <sys/types.h>
838 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
851 # include <xlocale.h>
854 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
855 * functions are available, or 2) just the setlocale() function. This logic is
856 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
858 #if ! defined(NO_LOCALE)
860 # if ! defined(NO_POSIX_2008_LOCALE) \
861 && defined(HAS_NEWLOCALE) \
862 && defined(HAS_USELOCALE) \
863 && defined(HAS_DUPLOCALE) \
864 && defined(HAS_FREELOCALE) \
865 && defined(LC_ALL_MASK)
867 /* For simplicity, the code is written to assume that any platform advanced
868 * enough to have the Posix 2008 locale functions has LC_ALL. The final
869 * test above makes sure that assumption is valid */
871 # define HAS_POSIX_2008_LOCALE
873 # elif defined(HAS_SETLOCALE)
879 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
881 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
882 && defined(HAS_STRXFRM)
883 # define USE_LOCALE_COLLATE
885 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
886 # define USE_LOCALE_CTYPE
888 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
889 # define USE_LOCALE_NUMERIC
891 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
892 # define USE_LOCALE_MESSAGES
894 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
895 # define USE_LOCALE_MONETARY
897 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
898 # define USE_LOCALE_TIME
900 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
901 # define USE_LOCALE_ADDRESS
903 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
904 # define USE_LOCALE_IDENTIFICATION
906 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
907 # define USE_LOCALE_MEASUREMENT
909 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
910 # define USE_LOCALE_PAPER
912 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
913 # define USE_LOCALE_TELEPHONE
915 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
916 # define USE_LOCALE_SYNTAX
918 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
919 # define USE_LOCALE_TOD
922 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
923 * changes here MUST also be made there */
925 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
926 # define USE_POSIX_2008_LOCALE
927 # ifndef USE_THREAD_SAFE_LOCALE
928 # define USE_THREAD_SAFE_LOCALE
931 * -DUSE_THREAD_SAFE_LOCALE, will do so even
932 * on unthreaded builds */
933 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
934 && ( defined(HAS_POSIX_2008_LOCALE) \
935 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
936 && ! defined(NO_THREAD_SAFE_LOCALE)
937 # ifndef USE_THREAD_SAFE_LOCALE
938 # define USE_THREAD_SAFE_LOCALE
940 # ifdef HAS_POSIX_2008_LOCALE
941 # define USE_POSIX_2008_LOCALE
946 /* Microsoft documentation reads in the change log for VS 2015:
947 * "The localeconv function declared in locale.h now works correctly when
948 * per-thread locale is enabled. In previous versions of the library, this
949 * function would return the lconv data for the global locale, not the
952 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
953 # define TS_W32_BROKEN_LOCALECONV
959 # ifdef PARAM_NEEDS_TYPES
960 # include <sys/types.h>
962 # include <sys/param.h>
965 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
966 value something like 199306. This may be useful if no more-specific
967 feature test is available.
975 /* Use all the "standard" definitions */
978 /* If this causes problems, set i_unistd=undef in the hint file. */
980 # if defined(__amigaos4__)
982 # include <netinet/in.h>
986 # if defined(__amigaos4__)
987 /* Under AmigaOS 4 newlib.library provides an environ. However using
988 * it doesn't give us enough control over inheritance of variables by
989 * subshells etc. so replace with custom version based on abc-shell
991 extern char **myenviron;
993 # define environ myenviron
999 # include <sys/wait.h>
1002 #ifdef __SYMBIAN32__
1003 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
1006 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1007 EXTERN_C int syscall(int, ...);
1010 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1011 EXTERN_C int usleep(unsigned int);
1014 /* macros for correct constant construction. These are in C99 <stdint.h>
1015 * (so they will not be available in strict C89 mode), but they are nice, so
1016 * let's define them if necessary. */
1019 # define UINT16_C(x) ((U16_TYPE)x##U)
1021 # define UINT16_C(x) ((U16_TYPE)x##UL)
1027 # define UINT32_C(x) ((U32_TYPE)x##U)
1029 # define UINT32_C(x) ((U32_TYPE)x##UL)
1034 typedef intmax_t PERL_INTMAX_T;
1035 typedef uintmax_t PERL_UINTMAX_T;
1038 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1039 * actually mean what it has always been documented to mean (see RT #119753)
1040 * and is explicitly turned off outside of core with dire warnings about
1041 * removing the undef. */
1043 #if defined(QUADKIND)
1044 # undef PeRl_INT64_C
1045 # undef PeRl_UINT64_C
1046 /* Prefer the native integer types (int and long) over long long
1047 * (which is not C89) and Win32-specific __int64. */
1048 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1049 # define PeRl_INT64_C(c) (c)
1050 # define PeRl_UINT64_C(c) CAT2(c,U)
1052 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1053 # define PeRl_INT64_C(c) CAT2(c,L)
1054 # define PeRl_UINT64_C(c) CAT2(c,UL)
1056 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1057 # define PeRl_INT64_C(c) CAT2(c,LL)
1058 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1060 # if QUADKIND == QUAD_IS___INT64
1061 # define PeRl_INT64_C(c) CAT2(c,I64)
1062 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1064 # ifndef PeRl_INT64_C
1065 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1066 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1068 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1069 * not fly with C89-pedantic gcc, so let's undefine them first so that
1070 * we can redefine them with our native integer preferring versions. */
1071 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1076 # define INT64_C(c) PeRl_INT64_C(c)
1079 # define UINT64_C(c) PeRl_UINT64_C(c)
1083 typedef I64TYPE PERL_INTMAX_T;
1084 typedef U64TYPE PERL_UINTMAX_T;
1087 # define INTMAX_C(c) INT64_C(c)
1090 # define UINTMAX_C(c) UINT64_C(c)
1093 #else /* below QUADKIND is undefined */
1095 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1097 typedef I32TYPE PERL_INTMAX_T;
1098 typedef U32TYPE PERL_UINTMAX_T;
1101 # define INTMAX_C(c) INT32_C(c)
1104 # define UINTMAX_C(c) UINT32_C(c)
1107 #endif /* no QUADKIND */
1111 /* byte-swapping functions for big-/little-endian conversion */
1112 # define _swab_16_(x) ((U16)( \
1113 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1114 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1116 # define _swab_32_(x) ((U32)( \
1117 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1118 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1119 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1120 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1123 # define _swab_64_(x) ((U64)( \
1124 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1125 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1126 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1127 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1128 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1129 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1130 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1131 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1134 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1135 at least on FreeBSD. YMMV, so experiment. */
1136 #ifndef PERL_ARENA_SIZE
1137 #define PERL_ARENA_SIZE 4080
1140 /* Maximum level of recursion */
1141 #ifndef PERL_SUB_DEPTH_WARN
1142 #define PERL_SUB_DEPTH_WARN 100
1145 #endif /* PERL_CORE */
1147 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1148 * It determines the size of local arrays in S_maybe_multiconcat() and
1151 #define PERL_MULTICONCAT_MAXARG 64
1153 /* The indexes of fields of a multiconcat aux struct.
1154 * The fixed fields are followed by nargs+1 const segment lengths,
1155 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1158 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1159 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1160 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1161 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1162 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1163 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1164 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1165 multiconcat header */
1167 /* We no longer default to creating a new SV for GvSV.
1168 Do this before embed. */
1169 #ifndef PERL_CREATE_GVSV
1170 # ifndef PERL_DONT_CREATE_GVSV
1171 # define PERL_DONT_CREATE_GVSV
1175 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1176 #define PERL_USES_PL_PIDSTATUS
1179 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
1180 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1183 #define MEM_SIZE Size_t
1185 /* Round all values passed to malloc up, by default to a multiple of
1188 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1189 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1192 /* sv_grow() will expand strings by at least a certain percentage of
1193 the previously *used* length to avoid excessive calls to realloc().
1194 The default is 25% of the current length.
1196 #ifndef PERL_STRLEN_EXPAND_SHIFT
1197 # define PERL_STRLEN_EXPAND_SHIFT 2
1200 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1201 * onwards) when building Socket.xs, but we can just use a different definition
1202 * for STRUCT_OFFSET instead. */
1203 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1204 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1206 # include <stddef.h>
1207 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1210 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1211 * in C89, but apparently there are platforms where it doesn't exist. See
1212 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1214 #ifdef PERL_GCC_PEDANTIC
1215 # undef HAS_PTRDIFF_T
1218 #ifdef HAS_PTRDIFF_T
1219 # define Ptrdiff_t ptrdiff_t
1221 # define Ptrdiff_t SSize_t
1224 #ifndef __SYMBIAN32__
1225 # include <string.h>
1228 /* This comes after <stdlib.h> so we don't try to change the standard
1229 * library prototypes; we'll use our own in proto.h instead. */
1232 # ifdef PERL_POLLUTE_MALLOC
1233 # ifndef PERL_EXTMALLOC_DEF
1234 # define Perl_malloc malloc
1235 # define Perl_calloc calloc
1236 # define Perl_realloc realloc
1237 # define Perl_mfree free
1240 # define EMBEDMYMALLOC /* for compatibility */
1243 # define safemalloc Perl_malloc
1244 # define safecalloc Perl_calloc
1245 # define saferealloc Perl_realloc
1246 # define safefree Perl_mfree
1247 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1248 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1251 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1252 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1253 # define panic_write2(s) write(2, s, strlen(s))
1254 # define CHECK_MALLOC_TAINT(newval) \
1255 CHECK_MALLOC_TOO_LATE_FOR_( \
1257 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1259 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1260 if (doing_taint(argc,argv,env)) { \
1261 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1263 #else /* MYMALLOC */
1264 # define safemalloc safesysmalloc
1265 # define safecalloc safesyscalloc
1266 # define saferealloc safesysrealloc
1267 # define safefree safesysfree
1268 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1269 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1270 # define MALLOC_CHECK_TAINT(argc,argv,env)
1271 #endif /* MYMALLOC */
1273 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1274 #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)
1275 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1276 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1277 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1280 # define memzero(d,l) memset(d,0,l)
1284 # include <netinet/in.h>
1288 # include <arpa/inet.h>
1292 # include <sys/stat.h>
1295 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1296 This definition should ideally go into win32/win32.h, but S_IFIFO is
1297 used later here in perl.h before win32/win32.h is being included. */
1298 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1299 # define S_IFIFO _S_IFIFO
1302 /* The stat macros for Unisoft System V/88 (and derivatives
1303 like UTekV) are broken, sometimes giving false positives. Undefine
1304 them here and let the code below set them to proper values.
1306 The ghs macro stands for GreenHills Software C-1.8.5 which
1307 is the C compiler for sysV88 and the various derivatives.
1308 This header file bug is corrected in gcc-2.5.8 and later versions.
1309 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1311 #if defined(m88k) && defined(ghs)
1323 # ifdef I_SYS_TIME_KERNEL
1326 # include <sys/time.h>
1327 # ifdef I_SYS_TIME_KERNEL
1332 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1333 # include <sys/times.h>
1338 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1339 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1342 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1343 # include <sys/socket.h>
1344 # if defined(USE_SOCKS) && defined(I_SOCKS)
1345 # if !defined(INCLUDE_PROTOTYPES)
1346 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1347 # define PERL_SOCKS_NEED_PROTOTYPES
1350 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1351 # undef INCLUDE_PROTOTYPES
1352 # undef PERL_SOCKS_NEED_PROTOTYPES
1363 # include <net/errno.h>
1368 /* sockatmark() is so new (2001) that many places might have it hidden
1369 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1370 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1371 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1372 # if defined(__THROW) && defined(__GLIBC__)
1373 int sockatmark(int) __THROW;
1375 int sockatmark(int);
1379 #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. */
1380 EXTERN_C int fchdir(int);
1381 EXTERN_C int flock(int, int);
1382 EXTERN_C int fseeko(FILE *, off_t, int);
1383 EXTERN_C off_t ftello(FILE *);
1386 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1387 EXTERN_C char *crypt(const char *, const char *);
1390 #if defined(__cplusplus) && defined(__CYGWIN__)
1391 EXTERN_C char *crypt(const char *, const char *);
1397 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1399 Set C<errno>, and on VMS set C<vaxc$errno>.
1401 =for apidoc mn|void|dSAVEDERRNO
1403 Declare variables needed to save C<errno> and any operating system
1404 specific error number.
1406 =for apidoc mn|void|dSAVE_ERRNO
1408 Declare variables needed to save C<errno> and any operating system
1409 specific error number, and save them for optional later restoration
1410 by C<RESTORE_ERRNO>.
1412 =for apidoc mn|void|SAVE_ERRNO
1414 Save C<errno> and any operating system specific error number for
1415 optional later restoration by C<RESTORE_ERRNO>. Requires
1416 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1418 =for apidoc mn|void|RESTORE_ERRNO
1420 Restore C<errno> and any operating system specific error number that
1421 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1427 # undef SETERRNO /* SOCKS might have defined this */
1431 # define SETERRNO(errcode,vmserrcode) \
1433 set_errno(errcode); \
1434 set_vaxc_errno(vmserrcode); \
1436 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1437 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1438 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1439 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1441 # define LIB_INVARG LIB$_INVARG
1442 # define RMS_DIR RMS$_DIR
1443 # define RMS_FAC RMS$_FAC
1444 # define RMS_FEX RMS$_FEX
1445 # define RMS_FNF RMS$_FNF
1446 # define RMS_IFI RMS$_IFI
1447 # define RMS_ISI RMS$_ISI
1448 # define RMS_PRV RMS$_PRV
1449 # define SS_ACCVIO SS$_ACCVIO
1450 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1451 # define SS_IVCHAN SS$_IVCHAN
1452 # define SS_NORMAL SS$_NORMAL
1453 # define SS_NOPRIV SS$_NOPRIV
1454 # define SS_BUFFEROVF SS$_BUFFEROVF
1456 # define LIB_INVARG 0
1464 # define SS_ACCVIO 0
1465 # define SS_DEVOFFLINE 0
1466 # define SS_IVCHAN 0
1467 # define SS_NORMAL 0
1468 # define SS_NOPRIV 0
1469 # define SS_BUFFEROVF 0
1473 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1474 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1475 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1476 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1480 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1481 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1482 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1483 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1487 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1491 # define dSAVEDERRNO int saved_errno
1492 # define dSAVE_ERRNO int saved_errno = errno
1493 # define SAVE_ERRNO (saved_errno = errno)
1494 # define RESTORE_ERRNO (errno = saved_errno)
1498 =head1 Warning and Dieing
1500 =for apidoc Amn|SV *|ERRSV
1502 Returns the SV for C<$@>, creating it if needed.
1504 =for apidoc Am|void|CLEAR_ERRSV
1506 Clear the contents of C<$@>, setting it to the empty string.
1508 This replaces any read-only SV with a fresh SV and removes any magic.
1510 =for apidoc Am|void|SANE_ERRSV
1512 Clean up ERRSV so we can safely set it.
1514 This replaces any read-only SV with a fresh writable copy and removes
1520 #define ERRSV GvSVn(PL_errgv)
1522 /* contains inlined gv_add_by_type */
1523 #define CLEAR_ERRSV() STMT_START { \
1524 SV ** const svp = &GvSV(PL_errgv); \
1526 *svp = newSVpvs(""); \
1527 } else if (SvREADONLY(*svp)) { \
1528 SvREFCNT_dec_NN(*svp); \
1529 *svp = newSVpvs(""); \
1531 SV *const errsv = *svp; \
1533 SvPOK_only(errsv); \
1534 if (SvMAGICAL(errsv)) { \
1540 /* contains inlined gv_add_by_type */
1541 #define SANE_ERRSV() STMT_START { \
1542 SV ** const svp = &GvSV(PL_errgv); \
1544 *svp = newSVpvs(""); \
1545 } else if (SvREADONLY(*svp)) { \
1546 SV *dupsv = newSVsv(*svp); \
1547 SvREFCNT_dec_NN(*svp); \
1550 SV *const errsv = *svp; \
1551 if (SvMAGICAL(errsv)) { \
1559 # define DEFSV (0 + GvSVn(PL_defgv))
1560 # define DEFSV_set(sv) \
1561 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1562 # define SAVE_DEFSV \
1564 save_gp(PL_defgv, 0), \
1565 GvINTRO_off(PL_defgv), \
1566 SAVEGENERICSV(GvSV(PL_defgv)), \
1567 GvSV(PL_defgv) = NULL \
1570 # define DEFSV GvSVn(PL_defgv)
1571 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1572 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1576 extern int errno; /* ANSI allows errno to be an lvalue expr.
1577 * For example in multithreaded environments
1578 * something like this might happen:
1579 * extern int *_errno(void);
1580 * #define errno (*_errno()) */
1583 #define UNKNOWN_ERRNO_MSG "(unknown)"
1586 #define Strerror(e) strerror((e), vaxc$errno)
1588 #define Strerror(e) strerror(e)
1593 # include <sys/ioctl.h>
1597 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1598 # ifdef HAS_SOCKETPAIR
1599 # undef HAS_SOCKETPAIR
1606 #ifndef HAS_SOCKETPAIR
1608 # define socketpair Perl_my_socketpair
1613 # define htoni htons
1614 # define ntohi ntohs
1616 # define htoni htonl
1617 # define ntohi ntohl
1620 /* Configure already sets Direntry_t */
1621 #if defined(I_DIRENT)
1622 # include <dirent.h>
1623 #elif defined(I_SYS_NDIR)
1624 # include <sys/ndir.h>
1625 #elif defined(I_SYS_DIR)
1626 # include <sys/dir.h>
1630 * The following gobbledygook brought to you on behalf of __STDC__.
1631 * (I could just use #ifndef __STDC__, but this is more bulletproof
1632 * in the face of half-implementations.)
1635 #if defined(I_SYSMODE)
1636 #include <sys/mode.h>
1641 # define S_IFMT _S_IFMT
1643 # define S_IFMT 0170000
1648 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1652 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1657 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1659 # define S_ISBLK(m) (0)
1664 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1669 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1671 # define S_ISFIFO(m) (0)
1677 # define S_ISLNK(m) _S_ISLNK(m)
1678 # elif defined(_S_IFLNK)
1679 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1680 # elif defined(S_IFLNK)
1681 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1683 # define S_ISLNK(m) (0)
1689 # define S_ISSOCK(m) _S_ISSOCK(m)
1690 # elif defined(_S_IFSOCK)
1691 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1692 # elif defined(S_IFSOCK)
1693 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1695 # define S_ISSOCK(m) (0)
1701 # define S_IRUSR S_IREAD
1702 # define S_IWUSR S_IWRITE
1703 # define S_IXUSR S_IEXEC
1705 # define S_IRUSR 0400
1706 # define S_IWUSR 0200
1707 # define S_IXUSR 0100
1713 # define S_IRGRP (S_IRUSR>>3)
1714 # define S_IWGRP (S_IWUSR>>3)
1715 # define S_IXGRP (S_IXUSR>>3)
1717 # define S_IRGRP 0040
1718 # define S_IWGRP 0020
1719 # define S_IXGRP 0010
1725 # define S_IROTH (S_IRUSR>>6)
1726 # define S_IWOTH (S_IWUSR>>6)
1727 # define S_IXOTH (S_IXUSR>>6)
1729 # define S_IROTH 0040
1730 # define S_IWOTH 0020
1731 # define S_IXOTH 0010
1736 # define S_ISUID 04000
1740 # define S_ISGID 02000
1744 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1748 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1752 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1755 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1756 * which would get included through <sys/file.h >, but that is 3000
1757 * lines in the future. --jhi */
1759 #if !defined(S_IREAD) && !defined(__HAIKU__)
1760 # define S_IREAD S_IRUSR
1763 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1764 # define S_IWRITE S_IWUSR
1768 # define S_IEXEC S_IXUSR
1771 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1772 # define SLOPPYDIVIDE
1779 /* This used to be conditionally defined based on whether we had a sprintf()
1780 * that correctly returns the string length (as required by C89), but we no
1781 * longer need that. XS modules can (and do) use this name, so it must remain
1782 * a part of the API that's visible to modules.
1784 =head1 Miscellaneous Functions
1786 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1788 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1793 #define my_sprintf sprintf
1796 * If we have v?snprintf() and the C99 variadic macros, we can just
1797 * use just the v?snprintf(). It is nice to try to trap the buffer
1798 * overflow, however, so if we are DEBUGGING, and we cannot use the
1799 * gcc statement expressions, then use the function wrappers which try
1800 * to trap the overflow. If we can use the gcc statement expressions,
1801 * we can try that even with the version that uses the C99 variadic
1805 /* Note that we do not check against snprintf()/vsnprintf() returning
1806 * negative values because that is non-standard behaviour and we use
1807 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1808 * that should be true only if the snprintf()/vsnprintf() are true
1809 * to the standard. */
1811 #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
1814 # define my_snprintf Perl_my_snprintf
1815 # define PERL_MY_SNPRINTF_GUARDED
1816 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1817 # ifdef PERL_USE_GCC_BRACE_GROUPS
1818 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1819 # define PERL_MY_SNPRINTF_GUARDED
1821 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1824 # define my_snprintf Perl_my_snprintf
1825 # define PERL_MY_SNPRINTF_GUARDED
1828 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1829 * dies if called under USE_QUADMATH. */
1830 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1831 # ifdef PERL_USE_GCC_BRACE_GROUPS
1832 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1833 # define PERL_MY_VSNPRINTF_GUARDED
1835 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1838 # define my_vsnprintf Perl_my_vsnprintf
1839 # define PERL_MY_VSNPRINTF_GUARDED
1842 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1843 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1844 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1845 * completely ignore it: otherwise you cannot know whether your output
1848 * int len = my_sprintf(buf, max, ...);
1849 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1851 * The trick is that in certain platforms [a] the my_sprintf() already
1852 * contains the sanity check, while in certain platforms [b] it needs
1853 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1854 * platforms the POST_GUARD actually does nothing since the check has
1855 * already been done. Watch out for the max being the same in both calls.
1857 * If you actually use the snprintf/vsnprintf return value already,
1858 * you assumedly are checking its validity somehow. But you can
1859 * insert the POST_GUARD() also in that case. */
1861 #ifndef PERL_MY_SNPRINTF_GUARDED
1862 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1864 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1867 #ifndef PERL_MY_VSNPRINTF_GUARDED
1868 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1870 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1874 # define my_strlcat strlcat
1877 #if defined(PERL_CORE) || defined(PERL_EXT)
1879 # define my_memrchr memrchr
1881 # define my_memrchr S_my_memrchr
1886 # define my_strlcpy strlcpy
1890 # define my_strnlen strnlen
1894 The IV type is supposed to be long enough to hold any integral
1896 --Andy Dougherty August 1996
1902 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1903 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1904 # define IV_MAX ((IV)INT64_MAX)
1905 # define IV_MIN ((IV)INT64_MIN)
1906 # define UV_MAX ((UV)UINT64_MAX)
1908 # define UINT64_MIN 0
1910 # define UV_MIN ((UV)UINT64_MIN)
1912 # define IV_MAX PERL_QUAD_MAX
1913 # define IV_MIN PERL_QUAD_MIN
1914 # define UV_MAX PERL_UQUAD_MAX
1915 # define UV_MIN PERL_UQUAD_MIN
1920 # if defined(INT32_MAX) && IVSIZE == 4
1921 # define IV_MAX ((IV)INT32_MAX)
1922 # define IV_MIN ((IV)INT32_MIN)
1923 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1924 # define UV_MAX ((UV)UINT32_MAX)
1926 # define UV_MAX ((UV)4294967295U)
1929 # define UINT32_MIN 0
1931 # define UV_MIN ((UV)UINT32_MIN)
1933 # define IV_MAX PERL_LONG_MAX
1934 # define IV_MIN PERL_LONG_MIN
1935 # define UV_MAX PERL_ULONG_MAX
1936 # define UV_MIN PERL_ULONG_MIN
1947 #if !defined(PERL_CORE)
1948 /* We think that removing this decade-old undef this will cause too much
1949 breakage on CPAN for too little gain. (See RT #119753)
1950 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1956 #define Size_t_MAX (~(Size_t)0)
1957 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1959 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1960 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1962 #ifndef NO_PERL_PRESERVE_IVUV
1963 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1967 * The macros INT2PTR and NUM2PTR are (despite their names)
1968 * bi-directional: they will convert int/float to or from pointers.
1969 * However the conversion to int/float are named explicitly:
1970 * PTR2IV, PTR2UV, PTR2NV.
1972 * For int conversions we do not need two casts if pointers are
1973 * the same size as IV and UV. Otherwise we need an explicit
1974 * cast (PTRV) to avoid compiler warnings.
1976 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1978 # define INT2PTR(any,d) (any)(d)
1979 #elif PTRSIZE == LONGSIZE
1980 # define PTRV unsigned long
1981 # define PTR2ul(p) (unsigned long)(p)
1983 # define PTRV unsigned
1987 # define INT2PTR(any,d) (any)(PTRV)(d)
1991 # define PTR2ul(p) INT2PTR(unsigned long,p)
1994 #define NUM2PTR(any,d) (any)(PTRV)(d)
1995 #define PTR2IV(p) INT2PTR(IV,p)
1996 #define PTR2UV(p) INT2PTR(UV,p)
1997 #define PTR2NV(p) NUM2PTR(NV,p)
1998 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2000 /* According to strict ANSI C89 one cannot freely cast between
2001 * data pointers and function (code) pointers. There are at least
2002 * two ways around this. One (used below) is to do two casts,
2003 * first the other pointer to an (unsigned) integer, and then
2004 * the integer to the other pointer. The other way would be
2005 * to use unions to "overlay" the pointers. For an example of
2006 * the latter technique, see union dirpu in struct xpvio in sv.h.
2007 * The only feasible use is probably temporarily storing
2008 * function pointers in a data pointer (such as a void pointer). */
2010 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2011 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2013 #ifdef USE_LONG_DOUBLE
2014 # if LONG_DOUBLESIZE == DOUBLESIZE
2015 # define LONG_DOUBLE_EQUALS_DOUBLE
2016 # undef USE_LONG_DOUBLE /* Ouch! */
2020 /* The following is all to get LDBL_DIG, in order to pick a nice
2021 default value for printing floating point numbers in Gconvert.
2024 #ifndef HAS_LDBL_DIG
2025 # if LONG_DOUBLESIZE == 10
2026 # define LDBL_DIG 18 /* assume IEEE */
2027 # elif LONG_DOUBLESIZE == 12
2028 # define LDBL_DIG 18 /* gcc? */
2029 # elif LONG_DOUBLESIZE == 16
2030 # define LDBL_DIG 33 /* assume IEEE */
2031 # elif LONG_DOUBLESIZE == DOUBLESIZE
2032 # define LDBL_DIG DBL_DIG /* bummer */
2039 # include <ieeefp.h>
2042 #if defined(__DECC) && defined(__osf__)
2043 /* Also Tru64 cc has broken NaN comparisons. */
2044 # define NAN_COMPARE_BROKEN
2047 # define NAN_COMPARE_BROKEN
2050 #ifdef USE_LONG_DOUBLE
2052 # include <sunmath.h>
2054 # if defined(LDBL_DIG)
2055 # define NV_DIG LDBL_DIG
2056 # ifdef LDBL_MANT_DIG
2057 # define NV_MANT_DIG LDBL_MANT_DIG
2060 # define NV_MIN LDBL_MIN
2063 # define NV_MAX LDBL_MAX
2065 # ifdef LDBL_MIN_EXP
2066 # define NV_MIN_EXP LDBL_MIN_EXP
2068 # ifdef LDBL_MAX_EXP
2069 # define NV_MAX_EXP LDBL_MAX_EXP
2071 # ifdef LDBL_MIN_10_EXP
2072 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2074 # ifdef LDBL_MAX_10_EXP
2075 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2077 # ifdef LDBL_EPSILON
2078 # define NV_EPSILON LDBL_EPSILON
2081 # define NV_MAX LDBL_MAX
2082 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2083 # elif defined(HUGE_VALL)
2084 # define NV_MAX HUGE_VALL
2087 # if defined(HAS_SQRTL)
2088 # define Perl_acos acosl
2089 # define Perl_asin asinl
2090 # define Perl_atan atanl
2091 # define Perl_atan2 atan2l
2092 # define Perl_ceil ceill
2093 # define Perl_cos cosl
2094 # define Perl_cosh coshl
2095 # define Perl_exp expl
2096 /* no Perl_fabs, but there's PERL_ABS */
2097 # define Perl_floor floorl
2098 # define Perl_fmod fmodl
2099 # define Perl_log logl
2100 # define Perl_log10 log10l
2101 # define Perl_pow powl
2102 # define Perl_sin sinl
2103 # define Perl_sinh sinhl
2104 # define Perl_sqrt sqrtl
2105 # define Perl_tan tanl
2106 # define Perl_tanh tanhl
2108 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2111 # define Perl_modf(x,y) modfl(x,y)
2112 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2113 prototype in <math.h> */
2114 # ifndef HAS_MODFL_PROTO
2115 EXTERN_C long double modfl(long double, long double *);
2117 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2118 extern long double Perl_my_modfl(long double x, long double *ip);
2119 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2124 # define Perl_frexp(x,y) frexpl(x,y)
2125 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2126 extern long double Perl_my_frexpl(long double x, int *e);
2127 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2132 # define Perl_ldexp(x, y) ldexpl(x,y)
2133 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2134 # define Perl_ldexp(x,y) scalbnl(x,y)
2138 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2139 # define Perl_isnan(x) isnanl(x)
2140 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2141 # define Perl_isnan(x) isnan(x)
2145 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2146 # define Perl_isinf(x) isinfl(x)
2147 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2148 # define Perl_isinf(x) isinf(x)
2149 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2150 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2153 # ifndef Perl_isfinite
2154 # define Perl_isfinite(x) Perl_isfinitel(x)
2156 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2157 # include <quadmath.h>
2158 # define NV_DIG FLT128_DIG
2159 # define NV_MANT_DIG FLT128_MANT_DIG
2160 # define NV_MIN FLT128_MIN
2161 # define NV_MAX FLT128_MAX
2162 # define NV_MIN_EXP FLT128_MIN_EXP
2163 # define NV_MAX_EXP FLT128_MAX_EXP
2164 # define NV_EPSILON FLT128_EPSILON
2165 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2166 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2167 # define Perl_acos acosq
2168 # define Perl_asin asinq
2169 # define Perl_atan atanq
2170 # define Perl_atan2 atan2q
2171 # define Perl_ceil ceilq
2172 # define Perl_cos cosq
2173 # define Perl_cosh coshq
2174 # define Perl_exp expq
2175 /* no Perl_fabs, but there's PERL_ABS */
2176 # define Perl_floor floorq
2177 # define Perl_fmod fmodq
2178 # define Perl_log logq
2179 # define Perl_log10 log10q
2180 # define Perl_signbit signbitq
2181 # define Perl_pow powq
2182 # define Perl_sin sinq
2183 # define Perl_sinh sinhq
2184 # define Perl_sqrt sqrtq
2185 # define Perl_tan tanq
2186 # define Perl_tanh tanhq
2187 # define Perl_modf(x,y) modfq(x,y)
2188 # define Perl_frexp(x,y) frexpq(x,y)
2189 # define Perl_ldexp(x, y) ldexpq(x,y)
2190 # define Perl_isinf(x) isinfq(x)
2191 # define Perl_isnan(x) isnanq(x)
2192 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2193 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2194 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2195 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2196 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2197 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2198 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2200 # define NV_DIG DBL_DIG
2201 # define NV_MANT_DIG DBL_MANT_DIG
2202 # define NV_MIN DBL_MIN
2203 # define NV_MAX DBL_MAX
2204 # define NV_MIN_EXP DBL_MIN_EXP
2205 # define NV_MAX_EXP DBL_MAX_EXP
2206 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2207 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2208 # define NV_EPSILON DBL_EPSILON
2209 # define NV_MAX DBL_MAX
2210 # define NV_MIN DBL_MIN
2212 /* These math interfaces are C89. */
2213 # define Perl_acos acos
2214 # define Perl_asin asin
2215 # define Perl_atan atan
2216 # define Perl_atan2 atan2
2217 # define Perl_ceil ceil
2218 # define Perl_cos cos
2219 # define Perl_cosh cosh
2220 # define Perl_exp exp
2221 /* no Perl_fabs, but there's PERL_ABS */
2222 # define Perl_floor floor
2223 # define Perl_fmod fmod
2224 # define Perl_log log
2225 # define Perl_log10 log10
2226 # define Perl_pow pow
2227 # define Perl_sin sin
2228 # define Perl_sinh sinh
2229 # define Perl_sqrt sqrt
2230 # define Perl_tan tan
2231 # define Perl_tanh tanh
2233 # define Perl_modf(x,y) modf(x,y)
2234 # define Perl_frexp(x,y) frexp(x,y)
2235 # define Perl_ldexp(x,y) ldexp(x,y)
2239 # define Perl_isnan(x) isnan(x)
2243 # if defined(HAS_ISINF)
2244 # define Perl_isinf(x) isinf(x)
2245 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2246 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2249 # ifndef Perl_isfinite
2250 # ifdef HAS_ISFINITE
2251 # define Perl_isfinite(x) isfinite(x)
2252 # elif defined(HAS_FINITE)
2253 # define Perl_isfinite(x) finite(x)
2258 /* fpclassify(): C99. It is supposed to be a macro that switches on
2259 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2260 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2262 # if defined(FP_INFINITE) && defined(FP_NAN)
2263 # define Perl_fp_class(x) fpclassify(x)
2264 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2265 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2266 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2267 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2268 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2269 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2270 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2271 * actually not the C99 fpclassify, with its own set of return defines. */
2272 # define Perl_fp_class(x) fpclassify(x)
2273 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2274 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2275 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2276 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2277 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2278 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2279 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2280 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2281 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2282 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2284 # undef Perl_fp_class /* Unknown set of defines */
2288 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2289 * are identical to the C99 fpclassify(). */
2290 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2293 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2295 /* oh, and the isnormal macro has a typo in it! */
2297 # define isnormal(x) Perl_fp_class_norm(x)
2299 # if defined(FP_INFINITE) && defined(FP_NAN)
2300 # define Perl_fp_class(x) fp_classify(x)
2301 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2302 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2303 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2304 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2305 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2307 # undef Perl_fp_class /* Unknown set of defines */
2311 /* Feel free to check with me for the SGI manpages, SGI testing,
2312 * etcetera, if you want to try getting this to work with IRIX.
2314 * - Allen <allens@cpan.org> */
2316 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2317 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2318 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2319 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2320 * Define some symbols also as cpp symbols so we can detect them. */
2321 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2322 # define FP_PINF FP_PINF
2323 # define FP_QNAN FP_QNAN
2327 # include <ieeefp.h>
2332 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2333 # define Perl_fp_class(x) fpclassl(x)
2335 # define Perl_fp_class(x) fpclass(x)
2337 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2338 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2339 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2340 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2341 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2342 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2343 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2344 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2345 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2346 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2347 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2348 # elif defined(FP_PINF) && defined(FP_QNAN)
2349 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2350 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2351 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2352 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2353 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2354 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2355 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2356 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2357 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2358 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2360 # undef Perl_fp_class /* Unknown set of defines */
2364 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2365 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2367 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2368 # include <fp_class.h>
2370 # if defined(FP_POS_INF) && defined(FP_QNAN)
2371 # ifdef __sgi /* XXX Configure test instead */
2372 # ifdef USE_LONG_DOUBLE
2373 # define Perl_fp_class(x) fp_class_l(x)
2375 # define Perl_fp_class(x) fp_class_d(x)
2378 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2379 # define Perl_fp_class(x) fp_classl(x)
2381 # define Perl_fp_class(x) fp_class(x)
2384 # if defined(FP_POS_INF) && defined(FP_QNAN)
2385 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2386 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2387 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2388 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2389 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2390 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2391 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2392 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2393 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2394 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2396 # undef Perl_fp_class /* Unknown set of defines */
2401 /* class(), _class(): Legacy: AIX. */
2402 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2404 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2406 # define Perl_fp_class(x) class(x)
2408 # define Perl_fp_class(x) _class(x)
2410 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2411 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2412 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2413 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2414 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2415 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2416 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2417 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2418 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2419 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2420 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2422 # undef Perl_fp_class /* Unknown set of defines */
2427 /* Win32: _fpclass(), _isnan(), _finite(). */
2430 # define Perl_isnan(x) _isnan(x)
2432 # ifndef Perl_isfinite
2433 # define Perl_isfinite(x) _finite(x)
2435 # ifndef Perl_fp_class_snan
2436 /* No simple way to #define Perl_fp_class because _fpclass()
2437 * returns a set of bits. */
2438 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2439 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2440 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2441 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2442 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2443 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2444 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2445 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2446 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2447 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2448 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2449 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2450 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2451 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2452 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2456 #if !defined(Perl_fp_class_inf) && \
2457 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2458 # define Perl_fp_class_inf(x) \
2459 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2462 #if !defined(Perl_fp_class_nan) && \
2463 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2464 # define Perl_fp_class_nan(x) \
2465 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2468 #if !defined(Perl_fp_class_zero) && \
2469 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2470 # define Perl_fp_class_zero(x) \
2471 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2474 #if !defined(Perl_fp_class_norm) && \
2475 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2476 # define Perl_fp_class_norm(x) \
2477 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2480 #if !defined(Perl_fp_class_denorm) && \
2481 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2482 # define Perl_fp_class_denorm(x) \
2483 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2487 # ifdef Perl_fp_class_nan
2488 # define Perl_isnan(x) Perl_fp_class_nan(x)
2489 # elif defined(HAS_UNORDERED)
2490 # define Perl_isnan(x) unordered((x), 0.0)
2492 # define Perl_isnan(x) ((x)!=(x))
2497 # ifdef Perl_fp_class_inf
2498 # define Perl_isinf(x) Perl_fp_class_inf(x)
2502 #ifndef Perl_isfinite
2503 # if defined(HAS_ISFINITE) && !defined(isfinite)
2504 # define Perl_isfinite(x) isfinite((double)(x))
2505 # elif defined(HAS_FINITE)
2506 # define Perl_isfinite(x) finite((double)(x))
2507 # elif defined(Perl_fp_class_finite)
2508 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2510 /* For the infinities the multiplication returns nan,
2511 * for the nan the multiplication also returns nan,
2512 * for everything else (that is, finite) zero should be returned. */
2513 # define Perl_isfinite(x) (((x) * 0) == 0)
2518 # if defined(Perl_isfinite) && defined(Perl_isnan)
2519 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2523 /* We need Perl_isfinitel (ends with ell) (if available) even when
2524 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2526 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2527 /* If isfinite() is a macro and looks like we have C99,
2528 * we assume it's the type-aware C99 isfinite(). */
2529 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2530 # define Perl_isfinitel(x) isfinite(x)
2531 # elif defined(HAS_ISFINITEL)
2532 # define Perl_isfinitel(x) isfinitel(x)
2533 # elif defined(HAS_FINITEL)
2534 # define Perl_isfinitel(x) finitel(x)
2535 # elif defined(HAS_INFL) && defined(HAS_NANL)
2536 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2538 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2542 /* The default is to use Perl's own atof() implementation (in numeric.c).
2543 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2544 * it is however best to use the native implementation of atof.
2545 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2546 * Some good tests to try out with either setting are t/base/num.t,
2547 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2548 * you may need to be using a different function than atof! */
2550 #ifndef USE_PERL_ATOF
2552 # define USE_PERL_ATOF
2555 # if USE_PERL_ATOF == 0
2556 # undef USE_PERL_ATOF
2560 #ifdef USE_PERL_ATOF
2561 # define Perl_atof(s) Perl_my_atof(s)
2562 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2564 # define Perl_atof(s) (NV)atof(s)
2565 # define Perl_atof2(s, n) ((n) = atof(s))
2567 #define my_atof2(a,b) my_atof3(a,b,0)
2570 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2571 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2572 * depending on local options. Until Configure detects this (or at least
2573 * detects whether the "signed" keyword is available) the CHAR ranges
2574 * will not be included. UCHAR functions normally.
2578 #define PERL_UCHAR_MIN ((unsigned char)0)
2579 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2581 #define PERL_USHORT_MIN ((unsigned short)0)
2582 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2584 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2585 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2587 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2588 #define PERL_UINT_MIN ((unsigned int)0)
2590 #define PERL_INT_MAX ((int)INT_MAX)
2591 #define PERL_INT_MIN ((int)INT_MIN)
2593 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2594 #define PERL_ULONG_MIN ((unsigned long)0L)
2596 #define PERL_LONG_MAX ((long)LONG_MAX)
2597 #define PERL_LONG_MIN ((long)LONG_MIN)
2600 # define PERL_UQUAD_MAX (~(UV)0)
2601 # define PERL_UQUAD_MIN ((UV)0)
2602 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2603 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2607 =head1 Numeric functions
2609 =for apidoc AmnUh||PERL_INT_MIN
2610 =for apidoc AmnUh||PERL_LONG_MAX
2611 =for apidoc AmnUh||PERL_LONG_MIN
2612 =for apidoc AmnUh||PERL_QUAD_MAX
2613 =for apidoc AmnUh||PERL_SHORT_MAX
2614 =for apidoc AmnUh||PERL_SHORT_MIN
2615 =for apidoc AmnUh||PERL_UCHAR_MAX
2616 =for apidoc AmnUh||PERL_UCHAR_MIN
2617 =for apidoc AmnUh||PERL_UINT_MAX
2618 =for apidoc AmnUh||PERL_ULONG_MAX
2619 =for apidoc AmnUh||PERL_ULONG_MIN
2620 =for apidoc AmnUh||PERL_UQUAD_MAX
2621 =for apidoc AmnUh||PERL_UQUAD_MIN
2622 =for apidoc AmnUh||PERL_USHORT_MAX
2623 =for apidoc AmnUh||PERL_USHORT_MIN
2624 =for apidoc AmnUh||PERL_QUAD_MIN
2625 =for apidoc AmnU||PERL_INT_MAX
2643 give the largest and smallest number representable in the current
2644 platform in variables of the corresponding types.
2646 For signed types, the smallest representable number is the most negative
2647 number, the one furthest away from zero.
2649 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2650 are available to the C code. But these constants, furnished by Perl,
2651 allow code compiled on earlier compilers to portably have access to the same
2658 typedef MEM_SIZE STRLEN;
2660 typedef struct op OP;
2661 typedef struct cop COP;
2662 typedef struct unop UNOP;
2663 typedef struct unop_aux UNOP_AUX;
2664 typedef struct binop BINOP;
2665 typedef struct listop LISTOP;
2666 typedef struct logop LOGOP;
2667 typedef struct pmop PMOP;
2668 typedef struct svop SVOP;
2669 typedef struct padop PADOP;
2670 typedef struct pvop PVOP;
2671 typedef struct loop LOOP;
2672 typedef struct methop METHOP;
2675 typedef struct opslab OPSLAB;
2676 typedef struct opslot OPSLOT;
2679 typedef struct block_hooks BHK;
2680 typedef struct custom_op XOP;
2682 typedef struct interpreter PerlInterpreter;
2684 /* SGI's <sys/sema.h> has struct sv */
2686 # define STRUCT_SV perl_sv
2688 # define STRUCT_SV sv
2690 typedef struct STRUCT_SV SV;
2691 typedef struct av AV;
2692 typedef struct hv HV;
2693 typedef struct cv CV;
2694 typedef struct p5rx REGEXP;
2695 typedef struct gp GP;
2696 typedef struct gv GV;
2697 typedef struct io IO;
2698 typedef struct context PERL_CONTEXT;
2699 typedef struct block BLOCK;
2701 typedef struct magic MAGIC;
2702 typedef struct xpv XPV;
2703 typedef struct xpviv XPVIV;
2704 typedef struct xpvuv XPVUV;
2705 typedef struct xpvnv XPVNV;
2706 typedef struct xpvmg XPVMG;
2707 typedef struct xpvlv XPVLV;
2708 typedef struct xpvinvlist XINVLIST;
2709 typedef struct xpvav XPVAV;
2710 typedef struct xpvhv XPVHV;
2711 typedef struct xpvgv XPVGV;
2712 typedef struct xpvcv XPVCV;
2713 typedef struct xpvbm XPVBM;
2714 typedef struct xpvfm XPVFM;
2715 typedef struct xpvio XPVIO;
2716 typedef struct mgvtbl MGVTBL;
2717 typedef union any ANY;
2718 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2719 typedef struct ptr_tbl PTR_TBL_t;
2720 typedef struct clone_params CLONE_PARAMS;
2722 /* a pad is currently just an AV; but that might change,
2723 * so hide the type. */
2724 typedef struct padlist PADLIST;
2726 typedef struct padnamelist PADNAMELIST;
2727 typedef struct padname PADNAME;
2729 /* always enable PERL_OP_PARENT */
2730 #if !defined(PERL_OP_PARENT)
2731 # define PERL_OP_PARENT
2734 /* enable PERL_COPY_ON_WRITE by default */
2735 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2736 # define PERL_COPY_ON_WRITE
2739 #ifdef PERL_COPY_ON_WRITE
2740 # define PERL_ANY_COW
2742 # define PERL_SAWAMPERSAND
2745 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2746 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2750 #include "charclass_invlists.h"
2752 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2753 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2754 # define USE_64_BIT_RAWIO /* implicit */
2758 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2759 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2760 * however, because operating systems like to do that themself. */
2763 # define FSEEKSIZE LSEEKSIZE
2765 # define FSEEKSIZE LONGSIZE
2769 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2770 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2771 # define USE_64_BIT_STDIO /* implicit */
2775 #ifdef USE_64_BIT_RAWIO
2778 # define Off_t off64_t
2780 # define LSEEKSIZE 8
2782 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2783 * will trigger defines like the ones below. Some 64-bit environments,
2784 * however, do not. Therefore we have to explicitly mix and match. */
2785 # if defined(USE_OPEN64)
2786 # define open open64
2788 # if defined(USE_LSEEK64)
2789 # define lseek lseek64
2791 # if defined(USE_LLSEEK)
2792 # define lseek llseek
2795 # if defined(USE_STAT64)
2796 # define stat stat64
2798 # if defined(USE_FSTAT64)
2799 # define fstat fstat64
2801 # if defined(USE_LSTAT64)
2802 # define lstat lstat64
2804 # if defined(USE_FLOCK64)
2805 # define flock flock64
2807 # if defined(USE_LOCKF64)
2808 # define lockf lockf64
2810 # if defined(USE_FCNTL64)
2811 # define fcntl fcntl64
2813 # if defined(USE_TRUNCATE64)
2814 # define truncate truncate64
2816 # if defined(USE_FTRUNCATE64)
2817 # define ftruncate ftruncate64
2821 #ifdef USE_64_BIT_STDIO
2822 # ifdef HAS_FPOS64_T
2824 # define Fpos_t fpos64_t
2826 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2827 * will trigger defines like the ones below. Some 64-bit environments,
2828 * however, do not. */
2829 # if defined(USE_FOPEN64)
2830 # define fopen fopen64
2832 # if defined(USE_FSEEK64)
2833 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2835 # if defined(USE_FTELL64)
2836 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2838 # if defined(USE_FSETPOS64)
2839 # define fsetpos fsetpos64
2841 # if defined(USE_FGETPOS64)
2842 # define fgetpos fgetpos64
2844 # if defined(USE_TMPFILE64)
2845 # define tmpfile tmpfile64
2847 # if defined(USE_FREOPEN64)
2848 # define freopen freopen64
2853 # include "iperlsys.h"
2858 # include "os2ish.h"
2860 # include "dosish.h"
2863 # include "vmsish.h"
2864 #elif defined(PLAN9)
2865 # include "./plan9/plan9ish.h"
2866 #elif defined(__VOS__)
2868 # include "./vos/vosish.h"
2870 # include "vos/vosish.h"
2872 #elif defined(__SYMBIAN32__)
2873 # include "symbian/symbianish.h"
2874 #elif defined(__HAIKU__)
2875 # include "haiku/haikuish.h"
2877 # include "unixish.h"
2881 # include "amigaos.h"
2882 # undef FD_CLOEXEC /* a lie in AmigaOS */
2885 /* NSIG logic from Configure --> */
2888 # define NSIG (_NSIG)
2889 # elif defined(SIGMAX)
2890 # define NSIG (SIGMAX+1)
2891 # elif defined(SIG_MAX)
2892 # define NSIG (SIG_MAX+1)
2893 # elif defined(_SIG_MAX)
2894 # define NSIG (_SIG_MAX+1)
2895 # elif defined(MAXSIG)
2896 # define NSIG (MAXSIG+1)
2897 # elif defined(MAX_SIG)
2898 # define NSIG (MAX_SIG+1)
2899 # elif defined(SIGARRAYSIZE)
2900 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2901 # elif defined(_sys_nsig)
2902 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2904 /* Default to some arbitrary number that's big enough to get most
2905 * of the common signals. */
2909 /* <-- NSIG logic from Configure */
2911 #ifndef NO_ENVIRON_ARRAY
2912 # define USE_ENVIRON_ARRAY
2916 /* On some platforms it would be safe to use a read/write mutex with many
2917 * readers possible at the same time. On other platforms, notably IBM ones,
2918 * subsequent getenv calls destroy earlier ones. Those platforms would not
2919 * be able to handle simultaneous getenv calls */
2920 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2921 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2922 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2923 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2925 # define ENV_LOCK NOOP;
2926 # define ENV_UNLOCK NOOP;
2927 # define ENV_INIT NOOP;
2928 # define ENV_TERM NOOP;
2931 /* Some critical sections need to lock both the locale and the environment.
2932 * XXX khw intends to change this to lock both mutexes, but that brings up
2933 * issues of potential deadlock, so should be done at the beginning of a
2934 * development cycle. So for now, it just locks the environment. Note that
2935 * many modern platforms are locale-thread-safe anyway, so locking the locale
2936 * mutex is a no-op anyway */
2937 #define ENV_LOCALE_LOCK ENV_LOCK
2938 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2940 /* And some critical sections care only that no one else is writing either the
2941 * locale nor the environment. XXX Again this is for the future. This can be
2942 * simulated with using COND_WAIT in thread.h */
2943 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2944 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2946 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2947 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2948 * signal handlers. But the perl core itself only fully supports 1-arg
2949 * handlers, so don't enable for now.
2950 * NB: POSIX::sigaction() supports both.
2952 * # define PERL_USE_3ARG_SIGHANDLER
2957 * This is an alias for the OS's siginfo_t, except that where the OS
2958 * doesn't support it, declare a dummy version instead. This allows us to
2959 * have signal handler functions which always have a Siginfo_t parameter
2960 * regardless of platform, (and which will just be passed a NULL value
2961 * where the OS doesn't support HAS_SIGACTION).
2964 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2965 typedef siginfo_t Siginfo_t;
2967 #ifdef si_signo /* minix */
2977 * initialise to avoid floating-point exceptions from overflow, etc
2979 #ifndef PERL_FPU_INIT
2980 # ifdef HAS_FPSETMASK
2981 # if HAS_FLOATINGPOINT_H
2982 # include <floatingpoint.h>
2984 /* Some operating systems have this as a macro, which in turn expands to a comma
2985 expression, and the last sub-expression is something that gets calculated,
2986 and then they have the gall to warn that a value computed is not used. Hence
2988 # define PERL_FPU_INIT (void)fpsetmask(0)
2989 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2990 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2991 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2992 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2994 # define PERL_FPU_INIT
2997 #ifndef PERL_FPU_PRE_EXEC
2998 # define PERL_FPU_PRE_EXEC {
2999 # define PERL_FPU_POST_EXEC }
3002 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3003 * We need to reenable the "invalid" trap because otherwise generation
3004 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3005 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3007 # include <machine/fpu.h>
3008 # define PERL_SYS_FPU_INIT \
3010 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3011 signal(SIGFPE, SIG_IGN); \
3014 /* In IRIX the default for Flush to Zero bit is true,
3015 * which means that results going below the minimum of normal
3016 * floating points go to zero, instead of going denormal/subnormal.
3017 * This is unlike almost any other system running Perl, so let's clear it.
3018 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3019 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3021 * XXX The flush-to-zero behaviour should be a Configure scan.
3022 * To change the behaviour usually requires some system-specific
3023 * incantation, though, like the below. */
3025 # include <sys/fpu.h>
3026 # define PERL_SYS_FPU_INIT \
3028 union fpc_csr csr; \
3029 csr.fc_word = get_fpc_csr(); \
3030 csr.fc_struct.flush = 0; \
3031 set_fpc_csr(csr.fc_word); \
3035 #ifndef PERL_SYS_FPU_INIT
3036 # define PERL_SYS_FPU_INIT NOOP
3039 #ifndef PERL_SYS_INIT3_BODY
3040 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3044 =head1 Miscellaneous Functions
3046 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3047 Provides system-specific tune up of the C runtime environment necessary to
3048 run Perl interpreters. This should be called only once, before creating
3049 any Perl interpreters.
3051 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3052 Provides system-specific tune up of the C runtime environment necessary to
3053 run Perl interpreters. This should be called only once, before creating
3054 any Perl interpreters.
3056 =for apidoc Am|void|PERL_SYS_TERM|
3057 Provides system-specific clean up of the C runtime environment after
3058 running Perl interpreters. This should be called only once, after
3059 freeing any remaining Perl interpreters.
3064 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3065 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3066 #define PERL_SYS_TERM() Perl_sys_term()
3068 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3069 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3074 # ifdef _POSIX_PATH_MAX
3075 # if PATH_MAX > _POSIX_PATH_MAX
3076 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3077 * included the null byte or not. Later amendments of POSIX,
3078 * XPG4, the Austin Group, and the Single UNIX Specification
3079 * all explicitly include the null byte in the PATH_MAX.
3080 * Ditto for _POSIX_PATH_MAX. */
3081 # define MAXPATHLEN PATH_MAX
3083 # define MAXPATHLEN _POSIX_PATH_MAX
3086 # define MAXPATHLEN (PATH_MAX+1)
3089 # define MAXPATHLEN 1024 /* Err on the large side. */
3093 /* clang Thread Safety Analysis/Annotations/Attributes
3094 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3096 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3097 * Apple XCode hijacks __clang_major__ and __clang_minor__
3098 * (6.1 means really clang 3.6), so needs extra hijinks
3099 * (could probably also test the contents of __apple_build_version__).
3101 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3102 defined(__clang__) && \
3103 !defined(PERL_GLOBAL_STRUCT) && \
3104 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3106 ((!defined(__apple_build_version__) && \
3107 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3108 (__clang_major__ >= 4))) || \
3109 (defined(__apple_build_version__) && \
3110 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3111 (__clang_major__ >= 7))))
3112 # define PERL_TSA__(x) __attribute__((x))
3113 # define PERL_TSA_ACTIVE
3115 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3116 # undef PERL_TSA_ACTIVE
3119 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3120 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3122 #define PERL_TSA_CAPABILITY(x) \
3123 PERL_TSA__(capability(x))
3125 /* In the below examples the mutex must be lexically visible, usually
3126 * either as global variables, or as function arguments. */
3128 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3130 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3132 #define PERL_TSA_GUARDED_BY(x) \
3133 PERL_TSA__(guarded_by(x))
3135 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3136 * The data _behind_ the pointer is guarded.
3138 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3140 #define PERL_TSA_PT_GUARDED_BY(x) \
3141 PERL_TSA__(pt_guarded_by(x))
3143 /* PERL_TSA_REQUIRES() is used to annotate functions.
3144 * The caller MUST hold the resource when calling the function.
3146 * void Foo() PERL_TSA_REQUIRES(mutex);
3148 #define PERL_TSA_REQUIRES(x) \
3149 PERL_TSA__(requires_capability(x))
3151 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3152 * The caller MUST NOT hold resource when calling the function.
3154 * EXCLUDES should be used when the function first acquires
3155 * the resource and then releases it. Use to avoid deadlock.
3157 * void Foo() PERL_TSA_EXCLUDES(mutex);
3159 #define PERL_TSA_EXCLUDES(x) \
3160 PERL_TSA__(locks_excluded(x))
3162 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3163 * The caller MUST NOT hold the resource when calling the function,
3164 * and the function will acquire the resource.
3166 * void Foo() PERL_TSA_ACQUIRE(mutex);
3168 #define PERL_TSA_ACQUIRE(x) \
3169 PERL_TSA__(acquire_capability(x))
3171 /* PERL_TSA_RELEASE() is used to annotate functions.
3172 * The caller MUST hold the resource when calling the function,
3173 * and the function will release the resource.
3175 * void Foo() PERL_TSA_RELEASE(mutex);
3177 #define PERL_TSA_RELEASE(x) \
3178 PERL_TSA__(release_capability(x))
3180 /* PERL_TSA_NO_TSA is used to annotate functions.
3181 * Used when being intentionally unsafe, or when the code is too
3182 * complicated for the analysis. Use sparingly.
3184 * void Foo() PERL_TSA_NO_TSA;
3186 #define PERL_TSA_NO_TSA \
3187 PERL_TSA__(no_thread_safety_analysis)
3189 /* There are more annotations/attributes available, see the clang
3190 * documentation for details. */
3192 #if defined(USE_ITHREADS)
3194 # include <nw5thread.h>
3195 # elif defined(WIN32)
3196 # include <win32thread.h>
3198 # include "os2thread.h"
3199 # elif defined(I_MACH_CTHREADS)
3200 # include <mach/cthreads.h>
3201 typedef cthread_t perl_os_thread;
3202 typedef mutex_t perl_mutex;
3203 typedef condition_t perl_cond;
3204 typedef void * perl_key;
3205 # elif defined(I_PTHREAD) /* Posix threads */
3206 # include <pthread.h>
3207 typedef pthread_t perl_os_thread;
3208 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3209 typedef pthread_cond_t perl_cond;
3210 typedef pthread_key_t perl_key;
3212 #endif /* USE_ITHREADS */
3214 #ifdef PERL_TSA_ACTIVE
3215 /* Since most pthread mutex interfaces have not been annotated, we
3216 * need to have these wrappers. The NO_TSA annotation is quite ugly
3217 * but it cannot be avoided in plain C, unlike in C++, where one could
3218 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3220 * The bodies of these wrappers are in util.c
3222 * TODO: however, some platforms are starting to get these clang
3223 * thread safety annotations for pthreads, for example FreeBSD.
3224 * Do we need a way to a bypass these wrappers? */
3225 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3226 PERL_TSA_ACQUIRE(*mutex)
3228 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3229 PERL_TSA_RELEASE(*mutex)
3238 # include "netware.h"
3241 #define STATUS_UNIX PL_statusvalue
3243 # define STATUS_NATIVE PL_statusvalue_vms
3245 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3246 * its contents can not be trusted. Unfortunately, Perl seems to check
3247 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3250 # include <stsdef.h>
3252 /* Presume this because if VMS changes it, it will require a new
3253 * set of APIs for waiting on children for binary compatibility.
3255 # define child_offset_bits (8)
3256 # ifndef C_FAC_POSIX
3257 # define C_FAC_POSIX 0x35A000
3260 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3261 * platform from the existing UNIX or Native status values.
3264 # define STATUS_EXIT \
3265 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3266 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3269 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3270 * exit code and shifts the UNIX value over the correct number of bits to
3271 * be a child status. Usually the number of bits is 8, but that could be
3272 * platform dependent. The NATIVE status code is presumed to have either
3273 * from a child process.
3276 /* This is complicated. The child processes return a true native VMS
3277 status which must be saved. But there is an assumption in Perl that
3278 the UNIX child status has some relationship to errno values, so
3279 Perl tries to translate it to text in some of the tests.
3280 In order to get the string translation correct, for the error, errno
3281 must be EVMSERR, but that generates a different text message
3282 than what the test programs are expecting. So an errno value must
3283 be derived from the native status value when an error occurs.
3284 That will hide the true native status message. With this version of
3285 perl, the true native child status can always be retrieved so that
3286 is not a problem. But in this case, Pl_statusvalue and errno may
3287 have different values in them.
3290 # define STATUS_NATIVE_CHILD_SET(n) \
3292 I32 evalue = (I32)n; \
3293 if (evalue == EVMSERR) { \
3294 PL_statusvalue_vms = vaxc$errno; \
3295 PL_statusvalue = evalue; \
3297 PL_statusvalue_vms = evalue; \
3298 if (evalue == -1) { \
3299 PL_statusvalue = -1; \
3300 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3302 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3303 set_vaxc_errno(evalue); \
3304 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3305 set_errno(EVMSERR); \
3306 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3307 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3311 # ifdef VMSISH_STATUS
3312 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3314 # define STATUS_CURRENT STATUS_UNIX
3317 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3318 * the NATIVE status to an equivalent value. Can not be used to translate
3319 * exit code values as exit code values are not guaranteed to have any
3320 * relationship at all to errno values.
3321 * This is used when Perl is forcing errno to have a specific value.
3323 # define STATUS_UNIX_SET(n) \
3325 I32 evalue = (I32)n; \
3326 PL_statusvalue = evalue; \
3327 if (PL_statusvalue != -1) { \
3328 if (PL_statusvalue != EVMSERR) { \
3329 PL_statusvalue &= 0xFFFF; \
3330 if (MY_POSIX_EXIT) \
3331 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3332 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3335 PL_statusvalue_vms = vaxc$errno; \
3338 else PL_statusvalue_vms = SS$_ABORT; \
3339 set_vaxc_errno(PL_statusvalue_vms); \
3342 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3343 * the NATIVE error status based on it.
3345 * When in the default mode to comply with the Perl VMS documentation,
3346 * 0 is a success and any other code sets the NATIVE status to a failure
3347 * code of SS$_ABORT.
3349 * In the new POSIX EXIT mode, native status will be set so that the
3350 * actual exit code will can be retrieved by the calling program or
3353 * If the exit code is not clearly a UNIX parent or child exit status,
3354 * it will be passed through as a VMS status.
3357 # define STATUS_UNIX_EXIT_SET(n) \
3359 I32 evalue = (I32)n; \
3360 PL_statusvalue = evalue; \
3361 if (MY_POSIX_EXIT) { \
3362 if (evalue <= 0xFF00) { \
3363 if (evalue > 0xFF) \
3364 evalue = (evalue >> child_offset_bits) & 0xFF; \
3365 PL_statusvalue_vms = \
3366 (C_FAC_POSIX | (evalue << 3 ) | \
3367 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3368 } else /* forgive them Perl, for they have sinned */ \
3369 PL_statusvalue_vms = evalue; \
3372 PL_statusvalue_vms = SS$_NORMAL; \
3373 else if (evalue <= 0xFF00) \
3374 PL_statusvalue_vms = SS$_ABORT; \
3375 else { /* forgive them Perl, for they have sinned */ \
3376 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3377 else PL_statusvalue_vms = vaxc$errno; \
3378 /* And obviously used a VMS status value instead of UNIX */ \
3379 PL_statusvalue = EVMSERR; \
3381 set_vaxc_errno(PL_statusvalue_vms); \
3386 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3387 * and sets the NATIVE error status based on it. This special case
3388 * is needed to maintain compatibility with past VMS behavior.
3390 * In the default mode on VMS, this number is passed through as
3391 * both the NATIVE and UNIX status. Which makes it different
3392 * that the STATUS_UNIX_EXIT_SET.
3394 * In the new POSIX EXIT mode, native status will be set so that the
3395 * actual exit code will can be retrieved by the calling program or
3398 * A POSIX exit code is from 0 to 255. If the exit code is higher
3399 * than this, it needs to be assumed that it is a VMS exit code and
3403 # define STATUS_EXIT_SET(n) \
3405 I32 evalue = (I32)n; \
3406 PL_statusvalue = evalue; \
3407 if (MY_POSIX_EXIT) \
3408 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3409 PL_statusvalue_vms = \
3410 (C_FAC_POSIX | (evalue << 3 ) | \
3411 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3413 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3414 set_vaxc_errno(PL_statusvalue_vms); \
3418 /* This macro forces a success status */
3419 # define STATUS_ALL_SUCCESS \
3420 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3422 /* This macro forces a failure status */
3423 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3424 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3425 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3427 #elif defined(__amigaos4__)
3428 /* A somewhat experimental attempt to simulate posix return code values */
3429 # define STATUS_NATIVE PL_statusvalue_posix
3430 # define STATUS_NATIVE_CHILD_SET(n) \
3432 PL_statusvalue_posix = (n); \
3433 if (PL_statusvalue_posix < 0) { \
3434 PL_statusvalue = -1; \
3437 PL_statusvalue = n << 8; \
3440 # define STATUS_UNIX_SET(n) \
3442 PL_statusvalue = (n); \
3443 if (PL_statusvalue != -1) \
3444 PL_statusvalue &= 0xFFFF; \
3446 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3447 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3448 # define STATUS_CURRENT STATUS_UNIX
3449 # define STATUS_EXIT STATUS_UNIX
3450 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3451 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3454 # define STATUS_NATIVE PL_statusvalue_posix
3455 # if defined(WCOREDUMP)
3456 # define STATUS_NATIVE_CHILD_SET(n) \
3458 PL_statusvalue_posix = (n); \
3459 if (PL_statusvalue_posix == -1) \
3460 PL_statusvalue = -1; \
3463 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3464 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3465 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3468 # elif defined(WIFEXITED)
3469 # define STATUS_NATIVE_CHILD_SET(n) \
3471 PL_statusvalue_posix = (n); \
3472 if (PL_statusvalue_posix == -1) \
3473 PL_statusvalue = -1; \
3476 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3477 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3481 # define STATUS_NATIVE_CHILD_SET(n) \
3483 PL_statusvalue_posix = (n); \
3484 if (PL_statusvalue_posix == -1) \
3485 PL_statusvalue = -1; \
3488 PL_statusvalue_posix & 0xFFFF; \
3492 # define STATUS_UNIX_SET(n) \
3494 PL_statusvalue = (n); \
3495 if (PL_statusvalue != -1) \
3496 PL_statusvalue &= 0xFFFF; \
3498 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3499 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3500 # define STATUS_CURRENT STATUS_UNIX
3501 # define STATUS_EXIT STATUS_UNIX
3502 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3503 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3506 /* flags in PL_exit_flags for nature of exit() */
3507 #define PERL_EXIT_EXPECTED 0x01
3508 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3509 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3510 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3513 /* format to use for version numbers in file/directory names */
3514 /* XXX move to Configure? */
3515 /* This was only ever used for the current version, and that can be done at
3516 compile time, as PERL_FS_VERSION, so should we just delete it? */
3517 # ifndef PERL_FS_VER_FMT
3518 # define PERL_FS_VER_FMT "%d.%d.%d"
3522 #ifndef PERL_FS_VERSION
3523 # define PERL_FS_VERSION PERL_VERSION_STRING
3526 /* This defines a way to flush all output buffers. This may be a
3527 * performance issue, so we allow people to disable it. Also, if
3528 * we are using stdio, there are broken implementations of fflush(NULL)
3529 * out there, Solaris being the most prominent.
3531 #ifndef PERL_FLUSHALL_FOR_CHILD
3532 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3533 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3534 # elif defined(FFLUSH_ALL)
3535 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3537 # define PERL_FLUSHALL_FOR_CHILD NOOP
3541 #ifndef PERL_WAIT_FOR_CHILDREN
3542 # define PERL_WAIT_FOR_CHILDREN NOOP
3545 /* the traditional thread-unsafe notion of "current interpreter". */
3546 #ifndef PERL_SET_INTERP
3547 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3550 #ifndef PERL_GET_INTERP
3551 # define PERL_GET_INTERP (PL_curinterp)
3554 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3555 # ifdef MULTIPLICITY
3556 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3558 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3562 This replaces the previous %_ "hack" by the "%p" hacks.
3563 All that is required is that the perl source does not
3564 use "%-p" or "%-<number>p" or "%<number>p" formats.
3565 These formats will still work in perl code.
3566 See comments in sv.c for further details.
3568 Robin Barker 2005-07-14
3570 No longer use %1p for VDf = %vd. RMB 2007-10-19
3574 # define SVf_(n) "-" STRINGIFY(n) "p"
3582 # define SVf32 SVf_(32)
3586 # define SVf256 SVf_(256)
3589 #define SVfARG(p) ((void*)(p))
3595 /* Not ideal, but we cannot easily include a number in an already-numeric
3596 * format sequence. */
3598 # define HEKf256 "3p"
3601 #define HEKfARG(p) ((void*)(p))
3604 =for apidoc Amnh||UTF8f
3605 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3608 * %4p is a custom format
3611 # define UTF8f "d%" UVuf "%4p"
3613 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3616 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3619 /* not used; but needed for backward compatibility with XS code? - RMB */
3625 #if !defined(DEBUGGING) && !defined(NDEBUG)
3630 /* For functions that are marked as __attribute__noreturn__, it's not
3631 appropriate to call return. In either case, include the lint directive.
3633 #ifdef HASATTRIBUTE_NORETURN
3634 # define NORETURN_FUNCTION_END NOT_REACHED;
3636 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3639 #ifdef HAS_BUILTIN_EXPECT
3640 # define EXPECT(expr,val) __builtin_expect(expr,val)
3642 # define EXPECT(expr,val) (expr)
3646 =head1 Miscellaneous Functions
3648 =for apidoc AmU|bool|LIKELY|const bool expr
3650 Returns the input unchanged, but at the same time it gives a branch prediction
3651 hint to the compiler that this condition is likely to be true.
3653 =for apidoc AmU|bool|UNLIKELY|const bool expr
3655 Returns the input unchanged, but at the same time it gives a branch prediction
3656 hint to the compiler that this condition is likely to be false.
3660 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3661 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3663 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3667 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3668 time invariants. That is, their argument must be a constant expression that
3669 can be verified by the compiler. This expression can contain anything that's
3670 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3671 the expression evaluates to 0, compilation fails.
3672 Because they generate no runtime code (i.e. their use is "free"), they're
3673 always active, even under non-DEBUGGING builds.
3674 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3675 file scope (outside of any function).
3676 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3679 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3680 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3681 || (__STDC_VERSION__ - 0) >= 201101L)) \
3682 || (defined(__cplusplus) && __cplusplus >= 201103L))
3683 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3684 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3685 matter what <assert.h> says.
3687 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3689 /* We use a bit-field instead of an array because gcc accepts
3690 'typedef char x[n]' where n is not a compile-time constant.
3691 We want to enforce constantness.
3693 # define STATIC_ASSERT_2(COND, SUFFIX) \
3695 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3696 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3697 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3698 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3700 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3701 error (static_assert is a declaration, and only statements can have labels).
3703 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3705 #ifndef __has_builtin
3706 # define __has_builtin(x) 0 /* not a clang style compiler */
3709 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3710 hint to a compiler about a statement of fact in a function call free
3711 expression, which allows the compiler to generate better machine code.
3712 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3713 the control path is unreachable. In a for loop, ASSUME can be used to hint
3714 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3715 intrinsic function, see its documents for more details.
3719 # if __has_builtin(__builtin_unreachable) \
3720 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3721 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3722 # elif defined(_MSC_VER)
3723 # define ASSUME(x) __assume(x)
3724 # elif defined(__ARMCC_VERSION) /* untested */
3725 # define ASSUME(x) __promise(x)
3727 /* a random compiler might define assert to its own special optimization token
3728 so pass it through to C lib as a last resort */
3729 # define ASSUME(x) assert(x)
3732 # define ASSUME(x) assert(x)
3735 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3736 # define NOT_REACHED
3737 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3738 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3739 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3741 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3744 /* Some unistd.h's give a prototype for pause() even though
3745 HAS_PAUSE ends up undefined. This causes the #define
3746 below to be rejected by the compiler. Sigh.
3751 #define Pause() sleep((32767<<16)+32767)
3755 # ifdef IOCPARM_MASK
3756 /* on BSDish systems we're safe */
3757 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3758 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3759 /* on Linux systems we're safe; except when we're not [perl #38223] */
3760 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3762 /* otherwise guess at what's safe */
3763 # define IOCPARM_LEN(x) 256
3767 #if defined(__CYGWIN__)
3769 * This symbol, if defined, indicates that the program should
3770 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3771 * that a file is in "binary" mode -- that is, that no translation
3772 * of bytes occurs on read or write operations.
3774 # define USEMYBINMODE /**/
3775 # include <io.h> /* for setmode() prototype */
3776 # define my_binmode(fp, iotype, mode) \
3777 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3781 void init_os_extras(void);
3784 #ifdef UNION_ANY_DEFINITION
3785 UNION_ANY_DEFINITION;
3803 void (*any_dptr) (void*);
3804 void (*any_dxptr) (pTHX_ void*);
3808 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3810 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3811 #define FILTER_DATA(idx) \
3812 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3813 #define FILTER_ISREADER(idx) \
3814 (PL_parser && PL_parser->rsfp_filters \
3815 && idx >= AvFILLp(PL_parser->rsfp_filters))
3816 #define PERL_FILTER_EXISTS(i) \
3817 (PL_parser && PL_parser->rsfp_filters \
3818 && (i) <= av_tindex(PL_parser->rsfp_filters))
3820 #if defined(_AIX) && !defined(_AIX43)
3821 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3822 /* We cannot include <crypt.h> to get the struct crypt_data
3823 * because of setkey prototype problems when threading */
3824 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3825 /* From OSF, Not needed in AIX
3833 #endif /* threading */
3836 #ifndef PERL_CALLCONV
3838 # define PERL_CALLCONV extern "C"
3840 # define PERL_CALLCONV
3843 #ifndef PERL_CALLCONV_NO_RET
3844 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3847 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3848 dont have a noreturn as a declaration specifier
3850 #ifndef PERL_STATIC_NO_RET
3851 # define PERL_STATIC_NO_RET STATIC
3853 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3854 builds that dont have a noreturn as a declaration specifier
3856 #ifndef PERL_STATIC_INLINE_NO_RET
3857 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3860 #ifndef PERL_STATIC_FORCE_INLINE
3861 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3864 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3865 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3869 # include "iperlsys.h"
3872 #ifdef __LIBCATAMOUNT__
3873 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3875 #define FAKE_BIT_BUCKET
3878 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3879 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3880 * Configure, despite their names being similar to other defines like
3881 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3882 * hashes. Therefore to enable/disable the hash randomisation defines
3883 * use the Configure -Accflags=... instead. */
3884 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3885 # define USE_HASH_SEED
3891 /* macros to define bit-fields in structs. */
3892 #ifndef PERL_BITFIELD8
3893 # define PERL_BITFIELD8 U8
3895 #ifndef PERL_BITFIELD16
3896 # define PERL_BITFIELD16 U16
3898 #ifndef PERL_BITFIELD32
3899 # define PERL_BITFIELD32 U32
3909 #include "opnames.h"
3916 #include "warnings.h"
3919 /* these would be in doio.h if there was such a file */
3920 #define my_stat() my_stat_flags(SV_GMAGIC)
3921 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3923 /* defined in sv.c, but also used in [ach]v.c */
3926 #undef _XPVCV_COMMON
3930 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3932 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3934 /* These have to be predeclared, as they are used in proto.h which is #included
3935 * before their definitions in regcomp.h. */
3938 typedef struct regnode_charclass regnode_charclass;
3940 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3941 * used under /l matching */
3942 typedef struct regnode_charclass_posixl regnode_charclass_class;
3943 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3945 typedef struct regnode_ssc regnode_ssc;
3946 typedef struct RExC_state_t RExC_state_t;
3947 struct _reg_trie_data;
3951 struct ptr_tbl_ent {
3952 struct ptr_tbl_ent* next;
3958 struct ptr_tbl_ent** tbl_ary;
3961 struct ptr_tbl_arena *tbl_arena;
3962 struct ptr_tbl_ent *tbl_arena_next;
3963 struct ptr_tbl_ent *tbl_arena_end;
3966 #if defined(htonl) && !defined(HAS_HTONL)
3969 #if defined(htons) && !defined(HAS_HTONS)
3972 #if defined(ntohl) && !defined(HAS_NTOHL)
3975 #if defined(ntohs) && !defined(HAS_NTOHS)
3983 # if (BYTEORDER & 0xffff) == 0x4321
3984 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3985 re-order their values. However, to behave identically to the alternative
3986 implementations, they should truncate to the correct size. */
3987 # define ntohl(x) ((x)&0xFFFFFFFF)
3988 # define htonl(x) ntohl(x)
3989 # define ntohs(x) ((x)&0xFFFF)
3990 # define htons(x) ntohs(x)
3991 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3993 /* Note that we can't straight out declare our own htonl and htons because
3994 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3995 to avoid the overhead of initialising the socket subsystem, but the headers
3996 that *declare* the various functions are still seen. If we declare our own
3997 htonl etc they will clash with the declarations in the Win32 headers. */
3999 PERL_STATIC_INLINE U32
4000 my_swap32(const U32 x) {
4001 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4002 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4005 PERL_STATIC_INLINE U16
4006 my_swap16(const U16 x) {
4007 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4010 # define htonl(x) my_swap32(x)
4011 # define ntohl(x) my_swap32(x)
4012 # define ntohs(x) my_swap16(x)
4013 # define htons(x) my_swap16(x)
4015 # error "Unsupported byteorder"
4016 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4017 the error message. Please check the value of the macro BYTEORDER, as defined
4018 in config.h. The values of BYTEORDER we expect are
4020 big endian little endian
4021 32 bit 0x4321 0x1234
4022 64 bit 0x87654321 0x12345678
4024 If you have a system with a different byte order, please see
4025 pod/perlhack.pod for how to submit a patch to add supporting code.
4031 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4034 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4035 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4036 re-order their values. However, to behave identically to the alternative
4037 implementations, they should truncate to the correct size. */
4038 # define vtohl(x) ((x)&0xFFFFFFFF)
4039 # define vtohs(x) ((x)&0xFFFF)
4040 # define htovl(x) vtohl(x)
4041 # define htovs(x) vtohs(x)
4042 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4043 # define vtohl(x) ((((x)&0xFF)<<24) \
4045 +(((x)&0x0000FF00)<<8) \
4046 +(((x)&0x00FF0000)>>8) )
4047 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4048 # define htovl(x) vtohl(x)
4049 # define htovs(x) vtohs(x)
4051 # error "Unsupported byteorder"
4052 /* If you have need for current perl on PDP-11 or similar, and can help test
4053 that blead keeps working on a mixed-endian system, then see
4054 pod/perlhack.pod for how to submit patches to things working again. */
4057 /* *MAX Plus 1. A floating point value.
4058 Hopefully expressed in a way that dodgy floating point can't mess up.
4059 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4061 May find that some broken compiler will want the value cast to I32.
4062 [after the shift, as signed >> may not be as secure as unsigned >>]
4064 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4065 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4066 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4067 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4068 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4070 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4072 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4073 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4074 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4076 /* This may look like unnecessary jumping through hoops, but converting
4077 out of range floating point values to integers *is* undefined behaviour,
4078 and it is starting to bite.
4081 #define I_32(what) (cast_i32((NV)(what)))
4082 #define U_32(what) (cast_ulong((NV)(what)))
4083 #define I_V(what) (cast_iv((NV)(what)))
4084 #define U_V(what) (cast_uv((NV)(what)))
4086 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4087 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4088 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4089 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4090 : ((n) < U32_MAX_P1 ? (U32) (n) \
4091 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4092 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4093 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4094 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4095 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4096 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4097 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4100 #define U_S(what) ((U16)U_32(what))
4101 #define U_I(what) ((unsigned int)U_32(what))
4102 #define U_L(what) U_32(what)
4105 # ifndef Perl_signbit
4106 # define Perl_signbit signbit
4110 /* These do not care about the fractional part, only about the range. */
4111 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4112 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4114 /* Used with UV/IV arguments: */
4115 /* XXXX: need to speed it up */
4116 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4117 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4124 #if !(defined(WIN32) || defined(SYMBIAN))
4125 Uid_t getuid (void);
4126 Uid_t geteuid (void);
4127 Gid_t getgid (void);
4128 Gid_t getegid (void);
4132 #ifndef Perl_debug_log
4133 # define Perl_debug_log PerlIO_stderr()
4136 #ifndef Perl_error_log
4137 # define Perl_error_log (PL_stderrgv \
4138 && isGV(PL_stderrgv) \
4139 && GvIOp(PL_stderrgv) \
4140 && IoOFP(GvIOp(PL_stderrgv)) \
4141 ? IoOFP(GvIOp(PL_stderrgv)) \
4146 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4147 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4148 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4149 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4150 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4151 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4152 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4153 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4154 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4155 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4156 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4157 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4158 /* U is reserved for Unofficial, exploratory hacking */
4159 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4161 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4162 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4163 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4164 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4165 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4166 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4167 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4168 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4169 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4170 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4171 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4172 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4173 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4174 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4175 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4176 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4178 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4179 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4181 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4182 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4183 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4184 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4185 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4186 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4187 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4188 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4189 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4190 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4191 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4192 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4193 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4194 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4195 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4196 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4197 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4198 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4199 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4200 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4201 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4202 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4203 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4204 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4205 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4206 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4207 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4208 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4209 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4210 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4211 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4212 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4213 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4217 # define DEBUG_p_TEST DEBUG_p_TEST_
4218 # define DEBUG_s_TEST DEBUG_s_TEST_
4219 # define DEBUG_l_TEST DEBUG_l_TEST_
4220 # define DEBUG_t_TEST DEBUG_t_TEST_
4221 # define DEBUG_o_TEST DEBUG_o_TEST_
4222 # define DEBUG_c_TEST DEBUG_c_TEST_
4223 # define DEBUG_P_TEST DEBUG_P_TEST_
4224 # define DEBUG_m_TEST DEBUG_m_TEST_
4225 # define DEBUG_f_TEST DEBUG_f_TEST_
4226 # define DEBUG_r_TEST DEBUG_r_TEST_
4227 # define DEBUG_x_TEST DEBUG_x_TEST_
4228 # define DEBUG_u_TEST DEBUG_u_TEST_
4229 # define DEBUG_U_TEST DEBUG_U_TEST_
4230 # define DEBUG_X_TEST DEBUG_X_TEST_
4231 # define DEBUG_D_TEST DEBUG_D_TEST_
4232 # define DEBUG_S_TEST DEBUG_S_TEST_
4233 # define DEBUG_T_TEST DEBUG_T_TEST_
4234 # define DEBUG_R_TEST DEBUG_R_TEST_
4235 # define DEBUG_J_TEST DEBUG_J_TEST_
4236 # define DEBUG_v_TEST DEBUG_v_TEST_
4237 # define DEBUG_C_TEST DEBUG_C_TEST_
4238 # define DEBUG_A_TEST DEBUG_A_TEST_
4239 # define DEBUG_q_TEST DEBUG_q_TEST_
4240 # define DEBUG_M_TEST DEBUG_M_TEST_
4241 # define DEBUG_B_TEST DEBUG_B_TEST_
4242 # define DEBUG_L_TEST DEBUG_L_TEST_
4243 # define DEBUG_i_TEST DEBUG_i_TEST_
4244 # define DEBUG_y_TEST DEBUG_y_TEST_
4245 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4246 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4247 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4248 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4249 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4251 # define PERL_DEB(a) a
4252 # define PERL_DEB2(a,b) a
4253 # define PERL_DEBUG(a) if (PL_debug) a
4254 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4255 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4256 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4257 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4258 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4259 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4260 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4262 /* Temporarily turn off memory debugging in case the a
4263 * does memory allocation, either directly or indirectly. */
4264 # define DEBUG_m(a) \
4266 if (PERL_GET_INTERP) { \
4268 if (DEBUG_m_TEST) { \
4269 PL_debug &= ~DEBUG_m_FLAG; \
4271 PL_debug |= DEBUG_m_FLAG; \
4276 # define DEBUG__(t, a) \
4278 if (t) STMT_START {a;} STMT_END; \
4281 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4283 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4284 # ifdef PERL_EXT_RE_BUILD
4285 # define DEBUG_r(a) STMT_START {a;} STMT_END
4287 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4288 # endif /* PERL_EXT_RE_BUILD */
4290 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4291 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4292 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4293 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4294 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4295 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4296 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4297 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4298 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4299 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4301 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4302 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4303 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4304 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4305 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4306 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4307 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4308 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4309 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4310 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4311 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4312 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4314 #else /* ! DEBUGGING below */
4316 # define DEBUG_p_TEST (0)
4317 # define DEBUG_s_TEST (0)
4318 # define DEBUG_l_TEST (0)
4319 # define DEBUG_t_TEST (0)
4320 # define DEBUG_o_TEST (0)
4321 # define DEBUG_c_TEST (0)
4322 # define DEBUG_P_TEST (0)
4323 # define DEBUG_m_TEST (0)
4324 # define DEBUG_f_TEST (0)
4325 # define DEBUG_r_TEST (0)
4326 # define DEBUG_x_TEST (0)
4327 # define DEBUG_u_TEST (0)
4328 # define DEBUG_U_TEST (0)
4329 # define DEBUG_X_TEST (0)
4330 # define DEBUG_D_TEST (0)
4331 # define DEBUG_S_TEST (0)
4332 # define DEBUG_T_TEST (0)
4333 # define DEBUG_R_TEST (0)
4334 # define DEBUG_J_TEST (0)
4335 # define DEBUG_v_TEST (0)
4336 # define DEBUG_C_TEST (0)
4337 # define DEBUG_A_TEST (0)
4338 # define DEBUG_q_TEST (0)
4339 # define DEBUG_M_TEST (0)
4340 # define DEBUG_B_TEST (0)
4341 # define DEBUG_L_TEST (0)
4342 # define DEBUG_i_TEST (0)
4343 # define DEBUG_y_TEST (0)
4344 # define DEBUG_Xv_TEST (0)
4345 # define DEBUG_Uv_TEST (0)
4346 # define DEBUG_Pv_TEST (0)
4347 # define DEBUG_Lv_TEST (0)
4348 # define DEBUG_yv_TEST (0)
4350 # define PERL_DEB(a)
4351 # define PERL_DEB2(a,b) b
4352 # define PERL_DEBUG(a)
4380 # define DEBUG_Xv(a)
4381 # define DEBUG_Uv(a)
4382 # define DEBUG_Pv(a)
4383 # define DEBUG_Lv(a)
4384 # define DEBUG_yv(a)
4385 #endif /* DEBUGGING */
4388 #define DEBUG_SCOPE(where) \
4390 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4391 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4392 __FILE__, __LINE__));
4394 /* Keep the old croak based assert for those who want it, and as a fallback if
4395 the platform is so heretically non-ANSI that it can't assert. */
4397 #define Perl_assert(what) PERL_DEB2( \
4398 ((what) ? ((void) 0) : \
4399 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4400 "\", line %d", STRINGIFY(what), __LINE__), \
4401 (void) 0)), ((void)0))
4403 /* assert() gets defined if DEBUGGING.
4404 * If no DEBUGGING, the <assert.h> has not been included. */
4406 # define assert(what) Perl_assert(what)
4409 # define assert_(what) assert(what),
4411 # define assert_(what)
4415 I32 (*uf_val)(pTHX_ IV, SV*);
4416 I32 (*uf_set)(pTHX_ IV, SV*);
4420 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4421 * XS code wanting to be backward compatible can do something
4422 * like the following:
4424 #ifndef PERL_MG_UFUNC
4425 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4428 static PERL_MG_UFUNC(foo_get, index, val)
4438 #ifndef PERL_MG_UFUNC
4439 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4444 /* isfinite and others are here rather than in math.h as C99 stipulates */
4449 # if !defined(WIN32) && !defined(VMS)
4451 char *crypt (const char*, const char*);
4453 # endif /* !WIN32 */
4456 char *getlogin (void);
4458 # endif /* !WIN32 */
4459 #endif /* !__cplusplus */
4461 /* Fixme on VMS. This needs to be a run-time, not build time options */
4462 /* Also rename() is affected by this */
4463 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4464 #define UNLINK unlnk
4465 I32 unlnk (pTHX_ const char*);
4467 #define UNLINK PerlLIO_unlink
4470 /* some versions of glibc are missing the setresuid() proto */
4471 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4472 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4474 /* some versions of glibc are missing the setresgid() proto */
4475 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4476 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4479 #ifndef HAS_SETREUID
4480 # ifdef HAS_SETRESUID
4481 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4482 # define HAS_SETREUID
4485 #ifndef HAS_SETREGID
4486 # ifdef HAS_SETRESGID
4487 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4488 # define HAS_SETREGID
4492 /* Sighandler_t defined in iperlsys.h */
4494 #ifdef HAS_SIGACTION
4495 typedef struct sigaction Sigsave_t;
4497 typedef Sighandler_t Sigsave_t;
4508 # define RUNOPS_DEFAULT Perl_runops_debug
4510 # define RUNOPS_DEFAULT Perl_runops_standard
4513 #if defined(USE_PERLIO)
4514 EXTERN_C void PerlIO_teardown(void);
4515 # ifdef USE_ITHREADS
4516 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4517 # define PERLIO_TERM \
4519 PerlIO_teardown(); \
4520 MUTEX_DESTROY(&PL_perlio_mutex);\
4523 # define PERLIO_INIT
4524 # define PERLIO_TERM PerlIO_teardown()
4527 # define PERLIO_INIT
4528 # define PERLIO_TERM
4532 # ifdef MUTEX_INIT_CALLS_MALLOC
4533 # define MALLOC_INIT \
4535 PL_malloc_mutex = NULL; \
4536 MUTEX_INIT(&PL_malloc_mutex); \
4538 # define MALLOC_TERM \
4540 perl_mutex tmp = PL_malloc_mutex; \
4541 PL_malloc_mutex = NULL; \
4542 MUTEX_DESTROY(&tmp); \
4545 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4546 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4549 # define MALLOC_INIT
4550 # define MALLOC_TERM
4553 #if defined(PERL_IMPLICIT_CONTEXT)
4555 struct perl_memory_debug_header;
4556 struct perl_memory_debug_header {
4558 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4561 struct perl_memory_debug_header *prev;
4562 struct perl_memory_debug_header *next;
4563 # ifdef PERL_DEBUG_READONLY_COW
4568 #elif defined(PERL_DEBUG_READONLY_COW)
4570 struct perl_memory_debug_header;
4571 struct perl_memory_debug_header {
4577 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4579 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4580 (sizeof(struct perl_memory_debug_header) + \
4581 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4582 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4585 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4588 #ifdef PERL_TRACK_MEMPOOL
4589 # ifdef PERL_DEBUG_READONLY_COW
4590 # define INIT_TRACK_MEMPOOL(header, interp) \
4592 (header).interpreter = (interp); \
4593 (header).prev = (header).next = &(header); \
4594 (header).readonly = 0; \
4597 # define INIT_TRACK_MEMPOOL(header, interp) \
4599 (header).interpreter = (interp); \
4600 (header).prev = (header).next = &(header); \
4604 # define INIT_TRACK_MEMPOOL(header, interp)
4607 #ifdef I_MALLOCMALLOC
4608 /* Needed for malloc_size(), malloc_good_size() on some systems */
4609 # include <malloc/malloc.h>
4613 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4615 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4616 # ifdef PERL_TRACK_MEMPOOL
4617 # define Perl_safesysmalloc_size(where) \
4618 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4620 # define Perl_safesysmalloc_size(where) malloc_size(where)
4623 # ifdef HAS_MALLOC_GOOD_SIZE
4624 # ifdef PERL_TRACK_MEMPOOL
4625 # define Perl_malloc_good_size(how_much) \
4626 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4628 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4631 /* Having this as the identity operation makes some code simpler. */
4632 # define Perl_malloc_good_size(how_much) (how_much)
4636 typedef int (*runops_proc_t)(pTHX);
4637 typedef void (*share_proc_t) (pTHX_ SV *sv);
4638 typedef int (*thrhook_proc_t) (pTHX);
4639 typedef OP* (*PPADDR_t[]) (pTHX);
4640 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4641 typedef void (*despatch_signals_proc_t) (pTHX);
4643 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4644 # include <crt_externs.h> /* for the env array */
4645 # define environ (*_NSGetEnviron())
4646 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4647 /* VMS and some other platforms don't use the environ array */
4648 EXTERN_C char **environ; /* environment variables supplied via exec */
4651 #define PERL_PATCHLEVEL_H_IMPLICIT
4652 #include "patchlevel.h"
4653 #undef PERL_PATCHLEVEL_H_IMPLICIT
4655 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4656 STRINGIFY(PERL_VERSION) "." \
4657 STRINGIFY(PERL_SUBVERSION)
4659 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4660 STRINGIFY(PERL_API_VERSION) "." \
4661 STRINGIFY(PERL_API_SUBVERSION)
4665 /* handy constants */
4666 EXTCONST char PL_warn_uninit[]
4667 INIT("Use of uninitialized value%s%s%s");
4668 EXTCONST char PL_warn_uninit_sv[]
4669 INIT("Use of uninitialized value%" SVf "%s%s");
4670 EXTCONST char PL_warn_nosemi[]
4671 INIT("Semicolon seems to be missing");
4672 EXTCONST char PL_warn_reserved[]
4673 INIT("Unquoted string \"%s\" may clash with future reserved word");
4674 EXTCONST char PL_warn_nl[]
4675 INIT("Unsuccessful %s on filename containing newline");
4676 EXTCONST char PL_no_wrongref[]
4677 INIT("Can't use %s ref as %s ref");
4678 /* The core no longer needs this here. If you require the string constant,
4679 please inline a copy into your own code. */
4680 EXTCONST char PL_no_symref[] __attribute__deprecated__
4681 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4682 EXTCONST char PL_no_symref_sv[]
4683 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4685 EXTCONST char PL_no_usym[]
4686 INIT("Can't use an undefined value as %s reference");
4687 EXTCONST char PL_no_aelem[]
4688 INIT("Modification of non-creatable array value attempted, subscript %d");
4689 EXTCONST char PL_no_helem_sv[]
4690 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4691 EXTCONST char PL_no_modify[]
4692 INIT("Modification of a read-only value attempted");
4693 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4694 INIT("Out of memory!\n");
4695 EXTCONST char PL_no_security[]
4696 INIT("Insecure dependency in %s%s");
4697 EXTCONST char PL_no_sock_func[]
4698 INIT("Unsupported socket function \"%s\" called");
4699 EXTCONST char PL_no_dir_func[]
4700 INIT("Unsupported directory function \"%s\" called");
4701 EXTCONST char PL_no_func[]
4702 INIT("The %s function is unimplemented");
4703 EXTCONST char PL_no_myglob[]
4704 INIT("\"%s\" %s %s can't be in a package");
4705 EXTCONST char PL_no_localize_ref[]
4706 INIT("Can't localize through a reference");
4707 EXTCONST char PL_memory_wrap[]
4708 INIT("panic: memory wrap");
4709 EXTCONST char PL_extended_cp_format[]
4710 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4711 " and so is not portable");
4712 EXTCONST char PL_Yes[]
4714 EXTCONST char PL_No[]
4716 EXTCONST char PL_Zero[]
4718 EXTCONST char PL_hexdigit[]
4719 INIT("0123456789abcdef0123456789ABCDEF");
4721 EXTCONST STRLEN PL_WARN_ALL
4723 EXTCONST STRLEN PL_WARN_NONE
4726 /* This is constant on most architectures, a global on OS/2 */
4728 EXTCONST char PL_sh_path[]
4729 INIT(SH_PATH); /* full path of shell */
4733 EXTCONST char PL_cshname[]
4735 # define PL_cshlen (sizeof(CSH "") - 1)
4738 /* These are baked at compile time into any shared perl library.
4739 In future releases this will allow us in main() to sanity test the
4740 library we're linking against. */
4742 EXTCONST U8 PL_revision
4743 INIT(PERL_REVISION);
4744 EXTCONST U8 PL_version
4746 EXTCONST U8 PL_subversion
4747 INIT(PERL_SUBVERSION);
4749 EXTCONST char PL_uuemap[65]
4750 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4752 /* a special string address whose value is "isa", but which perl knows
4753 * to treat as if it were really "DOES" when printing the method name in
4754 * the "Can't call method '%s'" error message */
4755 EXTCONST char PL_isa_DOES[]
4759 EXTCONST char PL_uudmap[256] =
4761 # include "uuudmap.h"
4763 # include "uudmap.h"
4766 EXTCONST char PL_bitcount[256] =
4768 # include "ubitcount.h"
4770 # include "bitcount.h"
4773 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4774 EXTCONST int PL_sig_num[] = { SIG_NUM };
4776 EXTCONST char PL_uudmap[256];
4777 EXTCONST char PL_bitcount[256];
4778 EXTCONST char* const PL_sig_name[];
4779 EXTCONST int PL_sig_num[];
4782 /* fast conversion and case folding tables. The folding tables complement the
4783 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4784 * folds such as outside the range or to multiple characters. */
4789 /* The EBCDIC fold table depends on the code page, and hence is found in
4792 EXTCONST unsigned char PL_fold[] = {
4793 0, 1, 2, 3, 4, 5, 6, 7,
4794 8, 9, 10, 11, 12, 13, 14, 15,
4795 16, 17, 18, 19, 20, 21, 22, 23,
4796 24, 25, 26, 27, 28, 29, 30, 31,
4797 32, 33, 34, 35, 36, 37, 38, 39,
4798 40, 41, 42, 43, 44, 45, 46, 47,
4799 48, 49, 50, 51, 52, 53, 54, 55,
4800 56, 57, 58, 59, 60, 61, 62, 63,
4801 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4802 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4803 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4804 'x', 'y', 'z', 91, 92, 93, 94, 95,
4805 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4806 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4807 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4808 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4809 128, 129, 130, 131, 132, 133, 134, 135,
4810 136, 137, 138, 139, 140, 141, 142, 143,
4811 144, 145, 146, 147, 148, 149, 150, 151,
4812 152, 153, 154, 155, 156, 157, 158, 159,
4813 160, 161, 162, 163, 164, 165, 166, 167,
4814 168, 169, 170, 171, 172, 173, 174, 175,
4815 176, 177, 178, 179, 180, 181, 182, 183,
4816 184, 185, 186, 187, 188, 189, 190, 191,
4817 192, 193, 194, 195, 196, 197, 198, 199,
4818 200, 201, 202, 203, 204, 205, 206, 207,
4819 208, 209, 210, 211, 212, 213, 214, 215,
4820 216, 217, 218, 219, 220, 221, 222, 223,
4821 224, 225, 226, 227, 228, 229, 230, 231,
4822 232, 233, 234, 235, 236, 237, 238, 239,
4823 240, 241, 242, 243, 244, 245, 246, 247,
4824 248, 249, 250, 251, 252, 253, 254, 255
4827 # ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4828 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4829 0, 1, 2, 3, 4, 5, 6, 7,
4830 8, 9, 10, 11, 12, 13, 14, 15,
4831 16, 17, 18, 19, 20, 21, 22, 23,
4832 24, 25, 26, 27, 28, 29, 30, 31,
4833 32, 33, 34, 35, 36, 37, 38, 39,
4834 40, 41, 42, 43, 44, 45, 46, 47,
4835 48, 49, 50, 51, 52, 53, 54, 55,
4836 56, 57, 58, 59, 60, 61, 62, 63,
4837 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4838 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4839 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4840 'x', 'y', 'z', 91, 92, 93, 94, 95,
4841 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4842 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4843 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4844 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4845 128, 129, 130, 131, 132, 133, 134, 135,
4846 136, 137, 138, 139, 140, 141, 142, 143,
4847 144, 145, 146, 147, 148, 149, 150, 151,
4848 152, 153, 154, 155, 156, 157, 158, 159,
4849 160, 161, 162, 163, 164, 165, 166, 167,
4850 168, 169, 170, 171, 172, 173, 174, 175,
4851 176, 177, 178, 179, 180, 181, 182, 183,
4852 184, 185, 186, 187, 188, 189, 190, 191,
4853 192, 193, 194, 195, 196, 197, 198, 199,
4854 200, 201, 202, 203, 204, 205, 206, 207,
4855 208, 209, 210, 211, 212, 213, 214, 215,
4856 216, 217, 218, 219, 220, 221, 222, 223,
4857 224, 225, 226, 227, 228, 229, 230, 231,
4858 232, 233, 234, 235, 236, 237, 238, 239,
4859 240, 241, 242, 243, 244, 245, 246, 247,
4860 248, 249, 250, 251, 252, 253, 254, 255
4864 EXTCONST unsigned char PL_fold_latin1[] = {
4865 /* Full latin1 complement folding, except for three problematic code points:
4866 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4867 * fold complements outside the Latin1 range, so can't match something
4868 * that isn't in utf8.
4869 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4870 * not one, so can't be represented in this table.
4872 * All have to be specially handled */
4873 0, 1, 2, 3, 4, 5, 6, 7,
4874 8, 9, 10, 11, 12, 13, 14, 15,
4875 16, 17, 18, 19, 20, 21, 22, 23,
4876 24, 25, 26, 27, 28, 29, 30, 31,
4877 32, 33, 34, 35, 36, 37, 38, 39,
4878 40, 41, 42, 43, 44, 45, 46, 47,
4879 48, 49, 50, 51, 52, 53, 54, 55,
4880 56, 57, 58, 59, 60, 61, 62, 63,
4881 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4882 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4883 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4884 'x', 'y', 'z', 91, 92, 93, 94, 95,
4885 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4886 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4887 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4888 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4889 128, 129, 130, 131, 132, 133, 134, 135,
4890 136, 137, 138, 139, 140, 141, 142, 143,
4891 144, 145, 146, 147, 148, 149, 150, 151,
4892 152, 153, 154, 155, 156, 157, 158, 159,
4893 160, 161, 162, 163, 164, 165, 166, 167,
4894 168, 169, 170, 171, 172, 173, 174, 175,
4895 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4896 184, 185, 186, 187, 188, 189, 190, 191,
4897 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4898 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4899 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4900 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4901 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4902 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4903 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4904 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4905 255 /* y with diaeresis */