3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
16 * This file is being used for x2p stuff.
17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
18 * Decouple x2p stuff from some of perls more extreme eccentricities.
23 #endif /* PERL_FOR_X2P */
31 /* this is used for functions which take a depth trailing
32 * argument under debugging */
34 #define _pDEPTH ,U32 depth
35 #define _aDEPTH ,depth
41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
48 defined(_STDC_C99) || defined(__c99)
52 /* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
55 /* XXX NOTE that from here --> to <-- the same logic is
56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
60 # if !defined(MULTIPLICITY)
66 # ifndef PERL_IMPLICIT_CONTEXT
67 # define PERL_IMPLICIT_CONTEXT
71 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
77 /* Use the reentrant APIs like localtime_r and getpwent_r */
78 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
79 * XXX KEEP makedef.pl copy of this code in sync */
80 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
81 # define USE_REENTRANT_API
84 /* <--- here ends the logic shared by perl.h and makedef.pl */
90 # define START_EXTERN_C extern "C" {
91 # define END_EXTERN_C }
92 # define EXTERN_C extern "C"
94 # define START_EXTERN_C
96 # define EXTERN_C extern
99 /* Fallback definitions in case we don't have definitions from config.h.
100 This should only matter for systems that don't use Configure and
101 haven't been modified to define PERL_STATIC_INLINE yet.
103 #if !defined(PERL_STATIC_INLINE)
104 # ifdef HAS_STATIC_INLINE
105 # define PERL_STATIC_INLINE static inline
107 # define PERL_STATIC_INLINE static
111 /* this used to be off by default, now its on, see perlio.h */
112 #define PERLIO_FUNCS_CONST
114 #ifdef PERL_IMPLICIT_CONTEXT
115 # ifndef MULTIPLICITY
116 # define MULTIPLICITY
118 # define tTHX PerlInterpreter*
119 # define pTHX tTHX my_perl PERL_UNUSED_DECL
120 # define aTHX my_perl
121 # define aTHXa(a) aTHX = (tTHX)a
122 # define dTHXa(a) pTHX = (tTHX)a
123 # define dTHX pTHX = PERL_GET_THX
136 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
137 # define PERL_TRACK_MEMPOOL
140 # undef PERL_TRACK_MEMPOOL
144 # define dTHX_DEBUGGING dTHX
146 # define dTHX_DEBUGGING dNOOP
149 #define STATIC static
152 /* Do not use these macros. They were part of PERL_OBJECT, which was an
153 * implementation of multiplicity using C++ objects. They have been left
154 * here solely for the sake of XS code which has incorrectly
157 #define CPERLscope(x) x
158 #define CPERLarg void
161 #define PERL_OBJECT_THIS
162 #define _PERL_OBJECT_THIS
163 #define PERL_OBJECT_THIS_
164 #define CALL_FPTR(fptr) (*fptr)
165 #define MEMBER_TO_FPTR(name) name
166 #endif /* !PERL_CORE */
168 #define CALLRUNOPS PL_runops
170 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
172 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
173 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
174 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
175 (strbeg),(minend),(sv),(data),(flags))
176 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
177 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
178 (strend),(flags),(data))
179 #define CALLREG_INTUIT_STRING(prog) \
180 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
182 #define CALLREGFREE(prog) \
183 Perl_pregfree(aTHX_ (prog))
185 #define CALLREGFREE_PVT(prog) \
186 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
188 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
189 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
191 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
192 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
194 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
195 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
197 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
198 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
200 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
201 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
203 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
204 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
206 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
207 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
209 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
210 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
212 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
213 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
215 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
216 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
218 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
219 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
221 #define CALLREG_NAMED_BUFF_COUNT(rx) \
222 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
224 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
225 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
227 #define CALLREG_PACKAGE(rx) \
228 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
230 #if defined(USE_ITHREADS)
231 #define CALLREGDUPE(prog,param) \
232 Perl_re_dup(aTHX_ (prog),(param))
234 #define CALLREGDUPE_PVT(prog,param) \
235 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
239 /* some compilers impersonate gcc */
240 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
241 # define PERL_IS_GCC 1
244 /* In case Configure was not used (we are using a "canned config"
245 * such as Win32, or a cross-compilation setup, for example) try going
246 * by the gcc major and minor versions. One useful URL is
247 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
248 * but contrary to this information warn_unused_result seems
249 * not to be in gcc 3.3.5, at least. --jhi
250 * Also, when building extensions with an installed perl, this allows
251 * the user to upgrade gcc and get the right attributes, rather than
252 * relying on the list generated at Configure time. --AD
253 * Set these up now otherwise we get confused when some of the <*thread.h>
254 * includes below indirectly pull in <perlio.h> (which needs to know if we
255 * have HASATTRIBUTE_FORMAT).
259 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
260 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
261 # define HASATTRIBUTE_DEPRECATED
263 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
264 # define HASATTRIBUTE_FORMAT
265 # if defined __MINGW32__
266 # define PRINTF_FORMAT_NULL_OK
269 # if __GNUC__ >= 3 /* 3.0 -> */
270 # define HASATTRIBUTE_MALLOC
272 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
273 # define HASATTRIBUTE_NONNULL
275 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
276 # define HASATTRIBUTE_NORETURN
278 # if __GNUC__ >= 3 /* gcc 3.0 -> */
279 # define HASATTRIBUTE_PURE
281 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
282 # define HASATTRIBUTE_UNUSED
284 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
285 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
287 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
288 # define HASATTRIBUTE_WARN_UNUSED_RESULT
290 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
291 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
292 # define HASATTRIBUTE_ALWAYS_INLINE
295 #endif /* #ifndef PERL_MICRO */
297 #ifdef HASATTRIBUTE_DEPRECATED
298 # define __attribute__deprecated__ __attribute__((deprecated))
300 #ifdef HASATTRIBUTE_FORMAT
301 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
303 #ifdef HASATTRIBUTE_MALLOC
304 # define __attribute__malloc__ __attribute__((__malloc__))
306 #ifdef HASATTRIBUTE_NONNULL
307 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
309 #ifdef HASATTRIBUTE_NORETURN
310 # define __attribute__noreturn__ __attribute__((noreturn))
312 #ifdef HASATTRIBUTE_PURE
313 # define __attribute__pure__ __attribute__((pure))
315 #ifdef HASATTRIBUTE_UNUSED
316 # define __attribute__unused__ __attribute__((unused))
318 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
319 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
321 #ifdef HASATTRIBUTE_ALWAYS_INLINE
322 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
323 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
324 # define __attribute__always_inline__ __attribute__((always_inline))
328 /* If we haven't defined the attributes yet, define them to blank. */
329 #ifndef __attribute__deprecated__
330 # define __attribute__deprecated__
332 #ifndef __attribute__format__
333 # define __attribute__format__(x,y,z)
335 #ifndef __attribute__malloc__
336 # define __attribute__malloc__
338 #ifndef __attribute__nonnull__
339 # define __attribute__nonnull__(a)
341 #ifndef __attribute__noreturn__
342 # define __attribute__noreturn__
344 #ifndef __attribute__pure__
345 # define __attribute__pure__
347 #ifndef __attribute__unused__
348 # define __attribute__unused__
350 #ifndef __attribute__warn_unused_result__
351 # define __attribute__warn_unused_result__
353 #ifndef __attribute__always_inline__
354 # define __attribute__always_inline__
357 /* Some OS warn on NULL format to printf */
358 #ifdef PRINTF_FORMAT_NULL_OK
359 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
361 # define __attribute__format__null_ok__(x,y,z)
365 * Because of backward compatibility reasons the PERL_UNUSED_DECL
366 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
368 * Note that there are C compilers such as MetroWerks CodeWarrior
369 * which do not have an "inlined" way (like the gcc __attribute__) of
370 * marking unused variables (they need e.g. a #pragma) and therefore
371 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
372 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
376 #ifndef PERL_UNUSED_DECL
377 # define PERL_UNUSED_DECL __attribute__unused__
381 * for silencing unused variables that are actually used most of the time,
382 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
383 * or variables/arguments that are used only in certain configurations.
385 =head1 Miscellaneous Functions
387 =for apidoc Am||PERL_UNUSED_ARG|void x
388 This is used to suppress compiler warnings that a parameter to a function is
389 not used. This situation can arise, for example, when a parameter is needed
390 under some configuration conditions, but not others, so that C preprocessor
391 conditional compilation causes it be used just some times.
393 =for apidoc Amn||PERL_UNUSED_CONTEXT
394 This is used to suppress compiler warnings that the thread context parameter to
395 a function is not used. This situation can arise, for example, when a
396 C preprocessor conditional compilation causes it be used just some times.
398 =for apidoc Am||PERL_UNUSED_VAR|void x
399 This is used to suppress compiler warnings that the variable I<x> is not used.
400 This situation can arise, for example, when a C preprocessor conditional
401 compilation causes it be used just some times.
405 #ifndef PERL_UNUSED_ARG
406 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
408 #ifndef PERL_UNUSED_VAR
409 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
412 #if defined(USE_ITHREADS)
413 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
415 # define PERL_UNUSED_CONTEXT
418 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
419 * g++ allows them but seems to have problems with them
420 * (insane errors ensue).
421 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
423 #if defined(PERL_GCC_PEDANTIC) || \
424 (defined(__GNUC__) && defined(__cplusplus) && \
425 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
426 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
427 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
433 =for apidoc Am||PERL_UNUSED_RESULT|void x
435 This macro indicates to discard the return value of the function call inside
438 PERL_UNUSED_RESULT(foo(a, b))
440 The main reason for this is that the combination of C<gcc -Wunused-result>
441 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
442 be silenced with casting to C<void>. This causes trouble when the system
443 header files use the attribute.
445 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
446 is there for a good reason: you might lose success/failure information,
447 or leak resources, or changes in resources.
449 But sometimes you just want to ignore the return value, I<e.g.>, on
450 codepaths soon ending up in abort, or in "best effort" attempts,
451 or in situations where there is no good way to handle failures.
453 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
454 another possibility is that you can capture the return value
455 and use C<L</PERL_UNUSED_VAR>> on that.
459 The __typeof__() is used instead of typeof() since typeof() is not
460 available under strict C89, and because of compilers masquerading
461 as gcc (clang and icc), we want exactly the gcc extension
462 __typeof__ and nothing else.
465 #ifndef PERL_UNUSED_RESULT
466 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
467 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
469 # define PERL_UNUSED_RESULT(v) ((void)(v))
473 #if defined(_MSC_VER)
474 /* XXX older MSVC versions have a smallish macro buffer */
475 #define PERL_SMALL_MACRO_BUFFER
478 /* on gcc (and clang), specify that a warning should be temporarily
481 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
483 * GCC_DIAG_RESTORE_DECL;
485 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
487 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
488 * clang only pretends to be GCC 4.2, but still supports push/pop.
490 * Note on usage: all macros must be used at a place where a declaration
491 * or statement can occur, i.e., not in the middle of an expression.
492 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
493 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
494 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
495 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
496 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
497 * and behave syntactically as statements (like NOOP).
501 #if defined(__clang__) || defined(__clang) || \
502 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
503 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
504 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
505 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
506 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
507 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
509 # define GCC_DIAG_IGNORE(w)
510 # define GCC_DIAG_RESTORE
512 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
513 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
514 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
515 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
516 /* for clang specific pragmas */
517 #if defined(__clang__) || defined(__clang)
518 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
519 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
520 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
521 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
523 # define CLANG_DIAG_IGNORE(w)
524 # define CLANG_DIAG_RESTORE
526 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
527 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
528 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
529 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
531 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
532 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
533 __pragma(warning(disable : x))
534 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
536 # define MSVC_DIAG_IGNORE(x)
537 # define MSVC_DIAG_RESTORE
539 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
540 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
541 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
542 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
544 #define NOOP /*EMPTY*/(void)0
545 #define dNOOP struct Perl___notused_struct
548 /* Don't bother defining tTHX ; using it outside
549 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
555 # define aTHXa(a) NOOP
556 # define dTHXa(a) dNOOP
571 /* Backwards compatibility macro for XS code. It used to be part of
572 * the PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
576 /* these are only defined for compatibility; should not be used internally */
577 #if !defined(pTHXo) && !defined(PERL_CORE)
579 # define pTHXo_ pTHX_
581 # define aTHXo_ aTHX_
583 # define dTHXoa(x) dTHXa(x)
587 # define pTHXx PerlInterpreter *my_perl
588 # define pTHXx_ pTHXx,
589 # define aTHXx my_perl
590 # define aTHXx_ aTHXx,
594 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
595 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
596 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
597 #ifdef PERL_IMPLICIT_SYS
603 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
604 # ifndef PERL_USE_GCC_BRACE_GROUPS
605 # define PERL_USE_GCC_BRACE_GROUPS
610 =head1 Miscellaneous Functions
612 =for apidoc AmnUu|void|STMT_START
614 STMT_START { statements; } STMT_END;
616 can be used as a single statement, as in
618 if (x) STMT_START { ... } STMT_END; else ...
620 These are often used in macro definitions. Note that you can't return a value
623 =for apidoc AmnUhu|void|STMT_END
627 Trying to select a version that gives no warnings...
629 #if !(defined(STMT_START) && defined(STMT_END))
630 # ifdef PERL_USE_GCC_BRACE_GROUPS
631 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
634 # define STMT_START do
635 # define STMT_END while (0)
639 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
640 # define BYTEORDER 0x1234
643 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
650 * The following contortions are brought to you on behalf of all the
651 * standards, semi-standards, de facto standards, not-so-de-facto standards
652 * of the world, as well as all the other botches anyone ever thought of.
653 * The basic theory is that if we work hard enough here, the rest of the
654 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
657 /* define this once if either system, instead of cluttering up the src */
658 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
662 /* These exist only for back-compat with XS modules. */
665 #define CAN_PROTOTYPE
672 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
673 * you get a perl without taint support, but doubtlessly with a lesser
674 * degree of support. Do not do so unless you know exactly what it means
675 * technically, have a good reason to do so, and know exactly how the
676 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
677 * a potential security risk due to flat out ignoring the security-relevant
678 * taint flags. This being said, a perl without taint support compiled in
679 * has marginal run-time performance benefits.
680 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
681 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
682 * silently ignores -t/-T instead of throwing an exception.
684 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
685 * voids your nonexistent warranty!
687 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
688 # define NO_TAINT_SUPPORT 1
691 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
692 * operations into no-ops for a very modest speed-up. Enable only if you
693 * know what you're doing: tests and CPAN modules' tests are bound to fail.
695 #ifdef NO_TAINT_SUPPORT
697 # define TAINT_NOT NOOP
698 # define TAINT_IF(c) NOOP
699 # define TAINT_ENV() NOOP
700 # define TAINT_PROPER(s) NOOP
701 # define TAINT_set(s) NOOP
703 # define TAINTING_get 0
704 # define TAINTING_set(s) NOOP
705 # define TAINT_WARN_get 0
706 # define TAINT_WARN_set(s) NOOP
708 /* Set to tainted if we are running under tainting mode */
709 # define TAINT (PL_tainted = PL_tainting)
711 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
712 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
713 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
714 /* croak or warn if tainting */
715 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
716 taint_proper(NULL, s); \
718 # define TAINT_set(s) (PL_tainted = (s))
719 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
720 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
721 # define TAINTING_set(s) (PL_tainting = (s))
722 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
726 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
729 /* flags used internally only within pp_subst and pp_substcont */
731 # define SUBST_TAINT_STR 1 /* string tainted */
732 # define SUBST_TAINT_PAT 2 /* pattern tainted */
733 # define SUBST_TAINT_REPL 4 /* replacement tainted */
734 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
735 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
738 /* XXX All process group stuff is handled in pp_sys.c. Should these
739 defines move there? If so, I could simplify this a lot. --AD 9/96.
741 /* Process group stuff changed from traditional BSD to POSIX.
742 perlfunc.pod documents the traditional BSD-style syntax, so we'll
743 try to preserve that, if possible.
746 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
747 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
748 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
749 #elif defined(HAS_SETPGRP2)
750 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
752 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
753 # define HAS_SETPGRP /* Well, effectively it does . . . */
756 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
757 our life easier :-) so we'll try it.
760 # define BSD_GETPGRP(pid) getpgid((pid))
761 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
762 # define BSD_GETPGRP(pid) getpgrp((pid))
763 #elif defined(HAS_GETPGRP2)
764 # define BSD_GETPGRP(pid) getpgrp2((pid))
766 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
767 # define HAS_GETPGRP /* Well, effectively it does . . . */
770 /* These are not exact synonyms, since setpgrp() and getpgrp() may
771 have different behaviors, but perl.h used to define USE_BSDPGRP
772 (prior to 5.003_05) so some extension might depend on it.
774 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
780 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
781 pthread.h must be included before all other header files.
783 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
784 # include <pthread.h>
787 #include <sys/types.h>
803 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
816 # include <xlocale.h>
819 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
820 * functions are available, or 2) just the setlocale() function. This logic is
821 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
823 #if ! defined(NO_LOCALE)
825 # if ! defined(NO_POSIX_2008_LOCALE) \
826 && defined(HAS_NEWLOCALE) \
827 && defined(HAS_USELOCALE) \
828 && defined(HAS_DUPLOCALE) \
829 && defined(HAS_FREELOCALE) \
830 && defined(LC_ALL_MASK)
832 /* For simplicity, the code is written to assume that any platform advanced
833 * enough to have the Posix 2008 locale functions has LC_ALL. The final
834 * test above makes sure that assumption is valid */
836 # define HAS_POSIX_2008_LOCALE
838 # elif defined(HAS_SETLOCALE)
844 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
846 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
847 && defined(HAS_STRXFRM)
848 # define USE_LOCALE_COLLATE
850 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
851 # define USE_LOCALE_CTYPE
853 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
854 # define USE_LOCALE_NUMERIC
856 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
857 # define USE_LOCALE_MESSAGES
859 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
860 # define USE_LOCALE_MONETARY
862 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
863 # define USE_LOCALE_TIME
865 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
866 # define USE_LOCALE_ADDRESS
868 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
869 # define USE_LOCALE_IDENTIFICATION
871 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
872 # define USE_LOCALE_MEASUREMENT
874 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
875 # define USE_LOCALE_PAPER
877 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
878 # define USE_LOCALE_TELEPHONE
880 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
881 # define USE_LOCALE_SYNTAX
883 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
884 # define USE_LOCALE_TOD
887 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
888 * changes here MUST also be made there */
890 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
891 # define USE_POSIX_2008_LOCALE
892 # ifndef USE_THREAD_SAFE_LOCALE
893 # define USE_THREAD_SAFE_LOCALE
896 * -DUSE_THREAD_SAFE_LOCALE, will do so even
897 * on unthreaded builds */
898 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
899 && ( defined(HAS_POSIX_2008_LOCALE) \
900 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
901 && ! defined(NO_THREAD_SAFE_LOCALE)
902 # ifndef USE_THREAD_SAFE_LOCALE
903 # define USE_THREAD_SAFE_LOCALE
905 # ifdef HAS_POSIX_2008_LOCALE
906 # define USE_POSIX_2008_LOCALE
911 /* Microsoft documentation reads in the change log for VS 2015:
912 * "The localeconv function declared in locale.h now works correctly when
913 * per-thread locale is enabled. In previous versions of the library, this
914 * function would return the lconv data for the global locale, not the
917 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
918 # define TS_W32_BROKEN_LOCALECONV
924 # ifdef PARAM_NEEDS_TYPES
925 # include <sys/types.h>
927 # include <sys/param.h>
930 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
931 value something like 199306. This may be useful if no more-specific
932 feature test is available.
940 /* Use all the "standard" definitions */
943 /* If this causes problems, set i_unistd=undef in the hint file. */
945 # if defined(__amigaos4__)
947 # include <netinet/in.h>
951 # if defined(__amigaos4__)
952 /* Under AmigaOS 4 newlib.library provides an environ. However using
953 * it doesn't give us enough control over inheritance of variables by
954 * subshells etc. so replace with custom version based on abc-shell
956 extern char **myenviron;
958 # define environ myenviron
964 # include <sys/wait.h>
967 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
968 EXTERN_C int syscall(int, ...);
971 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
972 EXTERN_C int usleep(unsigned int);
975 /* macros for correct constant construction. These are in C99 <stdint.h>
976 * (so they will not be available in strict C89 mode), but they are nice, so
977 * let's define them if necessary. */
980 # define UINT16_C(x) ((U16_TYPE)x##U)
982 # define UINT16_C(x) ((U16_TYPE)x##UL)
988 # define UINT32_C(x) ((U32_TYPE)x##U)
990 # define UINT32_C(x) ((U32_TYPE)x##UL)
995 typedef intmax_t PERL_INTMAX_T;
996 typedef uintmax_t PERL_UINTMAX_T;
999 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1000 * actually mean what it has always been documented to mean (see RT #119753)
1001 * and is explicitly turned off outside of core with dire warnings about
1002 * removing the undef. */
1004 #if defined(QUADKIND)
1005 # undef PeRl_INT64_C
1006 # undef PeRl_UINT64_C
1007 /* Prefer the native integer types (int and long) over long long
1008 * (which is not C89) and Win32-specific __int64. */
1009 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1010 # define PeRl_INT64_C(c) (c)
1011 # define PeRl_UINT64_C(c) CAT2(c,U)
1013 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1014 # define PeRl_INT64_C(c) CAT2(c,L)
1015 # define PeRl_UINT64_C(c) CAT2(c,UL)
1017 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1018 # define PeRl_INT64_C(c) CAT2(c,LL)
1019 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1021 # if QUADKIND == QUAD_IS___INT64
1022 # define PeRl_INT64_C(c) CAT2(c,I64)
1023 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1025 # ifndef PeRl_INT64_C
1026 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1027 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1029 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1030 * not fly with C89-pedantic gcc, so let's undefine them first so that
1031 * we can redefine them with our native integer preferring versions. */
1032 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1037 # define INT64_C(c) PeRl_INT64_C(c)
1040 # define UINT64_C(c) PeRl_UINT64_C(c)
1044 typedef I64TYPE PERL_INTMAX_T;
1045 typedef U64TYPE PERL_UINTMAX_T;
1048 # define INTMAX_C(c) INT64_C(c)
1051 # define UINTMAX_C(c) UINT64_C(c)
1054 #else /* below QUADKIND is undefined */
1056 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1058 typedef I32TYPE PERL_INTMAX_T;
1059 typedef U32TYPE PERL_UINTMAX_T;
1062 # define INTMAX_C(c) INT32_C(c)
1065 # define UINTMAX_C(c) UINT32_C(c)
1068 #endif /* no QUADKIND */
1072 /* byte-swapping functions for big-/little-endian conversion */
1073 # define _swab_16_(x) ((U16)( \
1074 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1075 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1077 # define _swab_32_(x) ((U32)( \
1078 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1079 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1080 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1081 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1084 # define _swab_64_(x) ((U64)( \
1085 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1086 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1087 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1088 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1089 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1090 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1091 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1092 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1095 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1096 at least on FreeBSD. YMMV, so experiment. */
1097 #ifndef PERL_ARENA_SIZE
1098 #define PERL_ARENA_SIZE 4080
1101 /* Maximum level of recursion */
1102 #ifndef PERL_SUB_DEPTH_WARN
1103 #define PERL_SUB_DEPTH_WARN 100
1106 #endif /* PERL_CORE */
1108 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1109 * It determines the size of local arrays in S_maybe_multiconcat() and
1112 #define PERL_MULTICONCAT_MAXARG 64
1114 /* The indexes of fields of a multiconcat aux struct.
1115 * The fixed fields are followed by nargs+1 const segment lengths,
1116 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1119 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1120 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1121 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1122 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1123 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1124 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1125 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1126 multiconcat header */
1128 /* We no longer default to creating a new SV for GvSV.
1129 Do this before embed. */
1130 #ifndef PERL_CREATE_GVSV
1131 # ifndef PERL_DONT_CREATE_GVSV
1132 # define PERL_DONT_CREATE_GVSV
1136 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1137 #define PERL_USES_PL_PIDSTATUS
1140 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1141 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1144 #define MEM_SIZE Size_t
1146 /* Round all values passed to malloc up, by default to a multiple of
1149 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1150 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1153 /* sv_grow() will expand strings by at least a certain percentage of
1154 the previously *used* length to avoid excessive calls to realloc().
1155 The default is 25% of the current length.
1157 #ifndef PERL_STRLEN_EXPAND_SHIFT
1158 # define PERL_STRLEN_EXPAND_SHIFT 2
1161 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1162 * onwards) when building Socket.xs, but we can just use a different definition
1163 * for STRUCT_OFFSET instead. */
1164 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1165 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1167 # include <stddef.h>
1168 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1171 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1172 * in C89, but apparently there are platforms where it doesn't exist. See
1173 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1175 #ifdef PERL_GCC_PEDANTIC
1176 # undef HAS_PTRDIFF_T
1179 #ifdef HAS_PTRDIFF_T
1180 # define Ptrdiff_t ptrdiff_t
1182 # define Ptrdiff_t SSize_t
1185 # include <string.h>
1187 /* This comes after <stdlib.h> so we don't try to change the standard
1188 * library prototypes; we'll use our own in proto.h instead. */
1191 # ifdef PERL_POLLUTE_MALLOC
1192 # ifndef PERL_EXTMALLOC_DEF
1193 # define Perl_malloc malloc
1194 # define Perl_calloc calloc
1195 # define Perl_realloc realloc
1196 # define Perl_mfree free
1199 # define EMBEDMYMALLOC /* for compatibility */
1202 # define safemalloc Perl_malloc
1203 # define safecalloc Perl_calloc
1204 # define saferealloc Perl_realloc
1205 # define safefree Perl_mfree
1206 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1207 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1210 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1211 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1212 # define panic_write2(s) write(2, s, strlen(s))
1213 # define CHECK_MALLOC_TAINT(newval) \
1214 CHECK_MALLOC_TOO_LATE_FOR_( \
1216 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1218 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1219 if (doing_taint(argc,argv,env)) { \
1220 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1222 #else /* MYMALLOC */
1223 # define safemalloc safesysmalloc
1224 # define safecalloc safesyscalloc
1225 # define saferealloc safesysrealloc
1226 # define safefree safesysfree
1227 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1228 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1229 # define MALLOC_CHECK_TAINT(argc,argv,env)
1230 #endif /* MYMALLOC */
1232 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1233 #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)
1234 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1235 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1236 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1239 # define memzero(d,l) memset(d,0,l)
1243 # include <netinet/in.h>
1247 # include <arpa/inet.h>
1251 # include <sys/stat.h>
1254 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1255 This definition should ideally go into win32/win32.h, but S_IFIFO is
1256 used later here in perl.h before win32/win32.h is being included. */
1257 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1258 # define S_IFIFO _S_IFIFO
1261 /* The stat macros for Unisoft System V/88 (and derivatives
1262 like UTekV) are broken, sometimes giving false positives. Undefine
1263 them here and let the code below set them to proper values.
1265 The ghs macro stands for GreenHills Software C-1.8.5 which
1266 is the C compiler for sysV88 and the various derivatives.
1267 This header file bug is corrected in gcc-2.5.8 and later versions.
1268 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1270 #if defined(m88k) && defined(ghs)
1282 # ifdef I_SYS_TIME_KERNEL
1285 # include <sys/time.h>
1286 # ifdef I_SYS_TIME_KERNEL
1291 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1292 # include <sys/times.h>
1297 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1298 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1301 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1302 # include <sys/socket.h>
1303 # if defined(USE_SOCKS) && defined(I_SOCKS)
1304 # if !defined(INCLUDE_PROTOTYPES)
1305 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1306 # define PERL_SOCKS_NEED_PROTOTYPES
1309 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1310 # undef INCLUDE_PROTOTYPES
1311 # undef PERL_SOCKS_NEED_PROTOTYPES
1322 # include <net/errno.h>
1327 /* sockatmark() is so new (2001) that many places might have it hidden
1328 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1329 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1330 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1331 # if defined(__THROW) && defined(__GLIBC__)
1332 int sockatmark(int) __THROW;
1334 int sockatmark(int);
1338 #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. */
1339 EXTERN_C int fchdir(int);
1340 EXTERN_C int flock(int, int);
1341 EXTERN_C int fseeko(FILE *, off_t, int);
1342 EXTERN_C off_t ftello(FILE *);
1345 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1346 EXTERN_C char *crypt(const char *, const char *);
1349 #if defined(__cplusplus) && defined(__CYGWIN__)
1350 EXTERN_C char *crypt(const char *, const char *);
1356 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1358 Set C<errno>, and on VMS set C<vaxc$errno>.
1360 =for apidoc mn|void|dSAVEDERRNO
1362 Declare variables needed to save C<errno> and any operating system
1363 specific error number.
1365 =for apidoc mn|void|dSAVE_ERRNO
1367 Declare variables needed to save C<errno> and any operating system
1368 specific error number, and save them for optional later restoration
1369 by C<RESTORE_ERRNO>.
1371 =for apidoc mn|void|SAVE_ERRNO
1373 Save C<errno> and any operating system specific error number for
1374 optional later restoration by C<RESTORE_ERRNO>. Requires
1375 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1377 =for apidoc mn|void|RESTORE_ERRNO
1379 Restore C<errno> and any operating system specific error number that
1380 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1386 # undef SETERRNO /* SOCKS might have defined this */
1390 # define SETERRNO(errcode,vmserrcode) \
1392 set_errno(errcode); \
1393 set_vaxc_errno(vmserrcode); \
1395 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1396 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1397 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1398 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1400 # define LIB_INVARG LIB$_INVARG
1401 # define RMS_DIR RMS$_DIR
1402 # define RMS_FAC RMS$_FAC
1403 # define RMS_FEX RMS$_FEX
1404 # define RMS_FNF RMS$_FNF
1405 # define RMS_IFI RMS$_IFI
1406 # define RMS_ISI RMS$_ISI
1407 # define RMS_PRV RMS$_PRV
1408 # define SS_ACCVIO SS$_ACCVIO
1409 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1410 # define SS_IVCHAN SS$_IVCHAN
1411 # define SS_NORMAL SS$_NORMAL
1412 # define SS_NOPRIV SS$_NOPRIV
1413 # define SS_BUFFEROVF SS$_BUFFEROVF
1415 # define LIB_INVARG 0
1423 # define SS_ACCVIO 0
1424 # define SS_DEVOFFLINE 0
1425 # define SS_IVCHAN 0
1426 # define SS_NORMAL 0
1427 # define SS_NOPRIV 0
1428 # define SS_BUFFEROVF 0
1432 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1433 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1434 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1435 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1439 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1440 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1441 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1442 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1446 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1450 # define dSAVEDERRNO int saved_errno
1451 # define dSAVE_ERRNO int saved_errno = errno
1452 # define SAVE_ERRNO (saved_errno = errno)
1453 # define RESTORE_ERRNO (errno = saved_errno)
1457 =head1 Warning and Dieing
1459 =for apidoc Amn|SV *|ERRSV
1461 Returns the SV for C<$@>, creating it if needed.
1463 =for apidoc Am|void|CLEAR_ERRSV
1465 Clear the contents of C<$@>, setting it to the empty string.
1467 This replaces any read-only SV with a fresh SV and removes any magic.
1469 =for apidoc Am|void|SANE_ERRSV
1471 Clean up ERRSV so we can safely set it.
1473 This replaces any read-only SV with a fresh writable copy and removes
1479 #define ERRSV GvSVn(PL_errgv)
1481 /* contains inlined gv_add_by_type */
1482 #define CLEAR_ERRSV() STMT_START { \
1483 SV ** const svp = &GvSV(PL_errgv); \
1485 *svp = newSVpvs(""); \
1486 } else if (SvREADONLY(*svp)) { \
1487 SvREFCNT_dec_NN(*svp); \
1488 *svp = newSVpvs(""); \
1490 SV *const errsv = *svp; \
1492 SvPOK_only(errsv); \
1493 if (SvMAGICAL(errsv)) { \
1499 /* contains inlined gv_add_by_type */
1500 #define SANE_ERRSV() STMT_START { \
1501 SV ** const svp = &GvSV(PL_errgv); \
1503 *svp = newSVpvs(""); \
1504 } else if (SvREADONLY(*svp)) { \
1505 SV *dupsv = newSVsv(*svp); \
1506 SvREFCNT_dec_NN(*svp); \
1509 SV *const errsv = *svp; \
1510 if (SvMAGICAL(errsv)) { \
1518 # define DEFSV (0 + GvSVn(PL_defgv))
1519 # define DEFSV_set(sv) \
1520 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1521 # define SAVE_DEFSV \
1523 save_gp(PL_defgv, 0), \
1524 GvINTRO_off(PL_defgv), \
1525 SAVEGENERICSV(GvSV(PL_defgv)), \
1526 GvSV(PL_defgv) = NULL \
1529 # define DEFSV GvSVn(PL_defgv)
1530 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1531 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1535 extern int errno; /* ANSI allows errno to be an lvalue expr.
1536 * For example in multithreaded environments
1537 * something like this might happen:
1538 * extern int *_errno(void);
1539 * #define errno (*_errno()) */
1542 #define UNKNOWN_ERRNO_MSG "(unknown)"
1545 #define Strerror(e) strerror((e), vaxc$errno)
1547 #define Strerror(e) strerror(e)
1552 # include <sys/ioctl.h>
1556 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1557 # ifdef HAS_SOCKETPAIR
1558 # undef HAS_SOCKETPAIR
1565 #ifndef HAS_SOCKETPAIR
1567 # define socketpair Perl_my_socketpair
1572 # define htoni htons
1573 # define ntohi ntohs
1575 # define htoni htonl
1576 # define ntohi ntohl
1579 /* Configure already sets Direntry_t */
1580 #if defined(I_DIRENT)
1581 # include <dirent.h>
1582 #elif defined(I_SYS_NDIR)
1583 # include <sys/ndir.h>
1584 #elif defined(I_SYS_DIR)
1585 # include <sys/dir.h>
1589 * The following gobbledygook brought to you on behalf of __STDC__.
1590 * (I could just use #ifndef __STDC__, but this is more bulletproof
1591 * in the face of half-implementations.)
1594 #if defined(I_SYSMODE)
1595 #include <sys/mode.h>
1600 # define S_IFMT _S_IFMT
1602 # define S_IFMT 0170000
1607 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1611 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1616 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1618 # define S_ISBLK(m) (0)
1623 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1628 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1630 # define S_ISFIFO(m) (0)
1636 # define S_ISLNK(m) _S_ISLNK(m)
1637 # elif defined(_S_IFLNK)
1638 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1639 # elif defined(S_IFLNK)
1640 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1642 # define S_ISLNK(m) (0)
1648 # define S_ISSOCK(m) _S_ISSOCK(m)
1649 # elif defined(_S_IFSOCK)
1650 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1651 # elif defined(S_IFSOCK)
1652 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1654 # define S_ISSOCK(m) (0)
1660 # define S_IRUSR S_IREAD
1661 # define S_IWUSR S_IWRITE
1662 # define S_IXUSR S_IEXEC
1664 # define S_IRUSR 0400
1665 # define S_IWUSR 0200
1666 # define S_IXUSR 0100
1672 # define S_IRGRP (S_IRUSR>>3)
1673 # define S_IWGRP (S_IWUSR>>3)
1674 # define S_IXGRP (S_IXUSR>>3)
1676 # define S_IRGRP 0040
1677 # define S_IWGRP 0020
1678 # define S_IXGRP 0010
1684 # define S_IROTH (S_IRUSR>>6)
1685 # define S_IWOTH (S_IWUSR>>6)
1686 # define S_IXOTH (S_IXUSR>>6)
1688 # define S_IROTH 0040
1689 # define S_IWOTH 0020
1690 # define S_IXOTH 0010
1695 # define S_ISUID 04000
1699 # define S_ISGID 02000
1703 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1707 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1711 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1714 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1715 * which would get included through <sys/file.h >, but that is 3000
1716 * lines in the future. --jhi */
1718 #if !defined(S_IREAD) && !defined(__HAIKU__)
1719 # define S_IREAD S_IRUSR
1722 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1723 # define S_IWRITE S_IWUSR
1727 # define S_IEXEC S_IXUSR
1730 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1731 # define SLOPPYDIVIDE
1738 /* This used to be conditionally defined based on whether we had a sprintf()
1739 * that correctly returns the string length (as required by C89), but we no
1740 * longer need that. XS modules can (and do) use this name, so it must remain
1741 * a part of the API that's visible to modules.
1743 =head1 Miscellaneous Functions
1745 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1747 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1752 #define my_sprintf sprintf
1755 * If we have v?snprintf() and the C99 variadic macros, we can just
1756 * use just the v?snprintf(). It is nice to try to trap the buffer
1757 * overflow, however, so if we are DEBUGGING, and we cannot use the
1758 * gcc statement expressions, then use the function wrappers which try
1759 * to trap the overflow. If we can use the gcc statement expressions,
1760 * we can try that even with the version that uses the C99 variadic
1764 /* Note that we do not check against snprintf()/vsnprintf() returning
1765 * negative values because that is non-standard behaviour and we use
1766 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1767 * that should be true only if the snprintf()/vsnprintf() are true
1768 * to the standard. */
1770 #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
1773 # define my_snprintf Perl_my_snprintf
1774 # define PERL_MY_SNPRINTF_GUARDED
1775 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1776 # ifdef PERL_USE_GCC_BRACE_GROUPS
1777 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1778 # define PERL_MY_SNPRINTF_GUARDED
1780 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1783 # define my_snprintf Perl_my_snprintf
1784 # define PERL_MY_SNPRINTF_GUARDED
1787 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1788 * dies if called under USE_QUADMATH. */
1789 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1790 # ifdef PERL_USE_GCC_BRACE_GROUPS
1791 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1792 # define PERL_MY_VSNPRINTF_GUARDED
1794 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1797 # define my_vsnprintf Perl_my_vsnprintf
1798 # define PERL_MY_VSNPRINTF_GUARDED
1801 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1802 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1803 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1804 * completely ignore it: otherwise you cannot know whether your output
1807 * int len = my_sprintf(buf, max, ...);
1808 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1810 * The trick is that in certain platforms [a] the my_sprintf() already
1811 * contains the sanity check, while in certain platforms [b] it needs
1812 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1813 * platforms the POST_GUARD actually does nothing since the check has
1814 * already been done. Watch out for the max being the same in both calls.
1816 * If you actually use the snprintf/vsnprintf return value already,
1817 * you assumedly are checking its validity somehow. But you can
1818 * insert the POST_GUARD() also in that case. */
1820 #ifndef PERL_MY_SNPRINTF_GUARDED
1821 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1823 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1826 #ifndef PERL_MY_VSNPRINTF_GUARDED
1827 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1829 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1833 # define my_strlcat strlcat
1836 #if defined(PERL_CORE) || defined(PERL_EXT)
1838 # define my_memrchr memrchr
1840 # define my_memrchr S_my_memrchr
1845 # define my_strlcpy strlcpy
1849 # define my_strnlen strnlen
1853 The IV type is supposed to be long enough to hold any integral
1855 --Andy Dougherty August 1996
1861 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1862 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1863 # define IV_MAX ((IV)INT64_MAX)
1864 # define IV_MIN ((IV)INT64_MIN)
1865 # define UV_MAX ((UV)UINT64_MAX)
1867 # define UINT64_MIN 0
1869 # define UV_MIN ((UV)UINT64_MIN)
1871 # define IV_MAX PERL_QUAD_MAX
1872 # define IV_MIN PERL_QUAD_MIN
1873 # define UV_MAX PERL_UQUAD_MAX
1874 # define UV_MIN PERL_UQUAD_MIN
1879 # if defined(INT32_MAX) && IVSIZE == 4
1880 # define IV_MAX ((IV)INT32_MAX)
1881 # define IV_MIN ((IV)INT32_MIN)
1882 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1883 # define UV_MAX ((UV)UINT32_MAX)
1885 # define UV_MAX ((UV)4294967295U)
1888 # define UINT32_MIN 0
1890 # define UV_MIN ((UV)UINT32_MIN)
1892 # define IV_MAX PERL_LONG_MAX
1893 # define IV_MIN PERL_LONG_MIN
1894 # define UV_MAX PERL_ULONG_MAX
1895 # define UV_MIN PERL_ULONG_MIN
1906 #if !defined(PERL_CORE)
1907 /* We think that removing this decade-old undef this will cause too much
1908 breakage on CPAN for too little gain. (See RT #119753)
1909 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1915 #define Size_t_MAX (~(Size_t)0)
1916 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1918 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1919 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1921 #ifndef NO_PERL_PRESERVE_IVUV
1922 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1926 * The macros INT2PTR and NUM2PTR are (despite their names)
1927 * bi-directional: they will convert int/float to or from pointers.
1928 * However the conversion to int/float are named explicitly:
1929 * PTR2IV, PTR2UV, PTR2NV.
1931 * For int conversions we do not need two casts if pointers are
1932 * the same size as IV and UV. Otherwise we need an explicit
1933 * cast (PTRV) to avoid compiler warnings.
1935 * These are mentioned in perlguts
1937 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1939 # define INT2PTR(any,d) (any)(d)
1940 #elif PTRSIZE == LONGSIZE
1941 # define PTRV unsigned long
1942 # define PTR2ul(p) (unsigned long)(p)
1944 # define PTRV unsigned
1948 # define INT2PTR(any,d) (any)(PTRV)(d)
1952 # define PTR2ul(p) INT2PTR(unsigned long,p)
1955 #define NUM2PTR(any,d) (any)(PTRV)(d)
1956 #define PTR2IV(p) INT2PTR(IV,p)
1957 #define PTR2UV(p) INT2PTR(UV,p)
1958 #define PTR2NV(p) NUM2PTR(NV,p)
1959 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1961 /* According to strict ANSI C89 one cannot freely cast between
1962 * data pointers and function (code) pointers. There are at least
1963 * two ways around this. One (used below) is to do two casts,
1964 * first the other pointer to an (unsigned) integer, and then
1965 * the integer to the other pointer. The other way would be
1966 * to use unions to "overlay" the pointers. For an example of
1967 * the latter technique, see union dirpu in struct xpvio in sv.h.
1968 * The only feasible use is probably temporarily storing
1969 * function pointers in a data pointer (such as a void pointer). */
1971 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1972 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1974 #ifdef USE_LONG_DOUBLE
1975 # if LONG_DOUBLESIZE == DOUBLESIZE
1976 # define LONG_DOUBLE_EQUALS_DOUBLE
1977 # undef USE_LONG_DOUBLE /* Ouch! */
1981 /* The following is all to get LDBL_DIG, in order to pick a nice
1982 default value for printing floating point numbers in Gconvert.
1985 #ifndef HAS_LDBL_DIG
1986 # if LONG_DOUBLESIZE == 10
1987 # define LDBL_DIG 18 /* assume IEEE */
1988 # elif LONG_DOUBLESIZE == 12
1989 # define LDBL_DIG 18 /* gcc? */
1990 # elif LONG_DOUBLESIZE == 16
1991 # define LDBL_DIG 33 /* assume IEEE */
1992 # elif LONG_DOUBLESIZE == DOUBLESIZE
1993 # define LDBL_DIG DBL_DIG /* bummer */
2000 # include <ieeefp.h>
2003 #if defined(__DECC) && defined(__osf__)
2004 /* Also Tru64 cc has broken NaN comparisons. */
2005 # define NAN_COMPARE_BROKEN
2008 # define NAN_COMPARE_BROKEN
2011 #ifdef USE_LONG_DOUBLE
2013 # include <sunmath.h>
2015 # if defined(LDBL_DIG)
2016 # define NV_DIG LDBL_DIG
2017 # ifdef LDBL_MANT_DIG
2018 # define NV_MANT_DIG LDBL_MANT_DIG
2021 # define NV_MIN LDBL_MIN
2024 # define NV_MAX LDBL_MAX
2026 # ifdef LDBL_MIN_EXP
2027 # define NV_MIN_EXP LDBL_MIN_EXP
2029 # ifdef LDBL_MAX_EXP
2030 # define NV_MAX_EXP LDBL_MAX_EXP
2032 # ifdef LDBL_MIN_10_EXP
2033 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2035 # ifdef LDBL_MAX_10_EXP
2036 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2038 # ifdef LDBL_EPSILON
2039 # define NV_EPSILON LDBL_EPSILON
2042 # define NV_MAX LDBL_MAX
2043 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2044 # elif defined(HUGE_VALL)
2045 # define NV_MAX HUGE_VALL
2048 # if defined(HAS_SQRTL)
2049 # define Perl_acos acosl
2050 # define Perl_asin asinl
2051 # define Perl_atan atanl
2052 # define Perl_atan2 atan2l
2053 # define Perl_ceil ceill
2054 # define Perl_cos cosl
2055 # define Perl_cosh coshl
2056 # define Perl_exp expl
2057 /* no Perl_fabs, but there's PERL_ABS */
2058 # define Perl_floor floorl
2059 # define Perl_fmod fmodl
2060 # define Perl_log logl
2061 # define Perl_log10 log10l
2062 # define Perl_pow powl
2063 # define Perl_sin sinl
2064 # define Perl_sinh sinhl
2065 # define Perl_sqrt sqrtl
2066 # define Perl_tan tanl
2067 # define Perl_tanh tanhl
2069 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2072 # define Perl_modf(x,y) modfl(x,y)
2073 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2074 prototype in <math.h> */
2075 # ifndef HAS_MODFL_PROTO
2076 EXTERN_C long double modfl(long double, long double *);
2078 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2079 extern long double Perl_my_modfl(long double x, long double *ip);
2080 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2085 # define Perl_frexp(x,y) frexpl(x,y)
2086 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2087 extern long double Perl_my_frexpl(long double x, int *e);
2088 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2093 # define Perl_ldexp(x, y) ldexpl(x,y)
2094 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2095 # define Perl_ldexp(x,y) scalbnl(x,y)
2099 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2100 # define Perl_isnan(x) isnanl(x)
2101 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2102 # define Perl_isnan(x) isnan(x)
2106 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2107 # define Perl_isinf(x) isinfl(x)
2108 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2109 # define Perl_isinf(x) isinf(x)
2110 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2111 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2114 # ifndef Perl_isfinite
2115 # define Perl_isfinite(x) Perl_isfinitel(x)
2117 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2118 # include <quadmath.h>
2119 # define NV_DIG FLT128_DIG
2120 # define NV_MANT_DIG FLT128_MANT_DIG
2121 # define NV_MIN FLT128_MIN
2122 # define NV_MAX FLT128_MAX
2123 # define NV_MIN_EXP FLT128_MIN_EXP
2124 # define NV_MAX_EXP FLT128_MAX_EXP
2125 # define NV_EPSILON FLT128_EPSILON
2126 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2127 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2128 # define Perl_acos acosq
2129 # define Perl_asin asinq
2130 # define Perl_atan atanq
2131 # define Perl_atan2 atan2q
2132 # define Perl_ceil ceilq
2133 # define Perl_cos cosq
2134 # define Perl_cosh coshq
2135 # define Perl_exp expq
2136 /* no Perl_fabs, but there's PERL_ABS */
2137 # define Perl_floor floorq
2138 # define Perl_fmod fmodq
2139 # define Perl_log logq
2140 # define Perl_log10 log10q
2141 # define Perl_signbit signbitq
2142 # define Perl_pow powq
2143 # define Perl_sin sinq
2144 # define Perl_sinh sinhq
2145 # define Perl_sqrt sqrtq
2146 # define Perl_tan tanq
2147 # define Perl_tanh tanhq
2148 # define Perl_modf(x,y) modfq(x,y)
2149 # define Perl_frexp(x,y) frexpq(x,y)
2150 # define Perl_ldexp(x, y) ldexpq(x,y)
2151 # define Perl_isinf(x) isinfq(x)
2152 # define Perl_isnan(x) isnanq(x)
2153 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2154 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2155 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2156 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2157 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2158 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2159 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2161 # define NV_DIG DBL_DIG
2162 # define NV_MANT_DIG DBL_MANT_DIG
2163 # define NV_MIN DBL_MIN
2164 # define NV_MAX DBL_MAX
2165 # define NV_MIN_EXP DBL_MIN_EXP
2166 # define NV_MAX_EXP DBL_MAX_EXP
2167 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2168 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2169 # define NV_EPSILON DBL_EPSILON
2170 # define NV_MAX DBL_MAX
2171 # define NV_MIN DBL_MIN
2173 /* These math interfaces are C89. */
2174 # define Perl_acos acos
2175 # define Perl_asin asin
2176 # define Perl_atan atan
2177 # define Perl_atan2 atan2
2178 # define Perl_ceil ceil
2179 # define Perl_cos cos
2180 # define Perl_cosh cosh
2181 # define Perl_exp exp
2182 /* no Perl_fabs, but there's PERL_ABS */
2183 # define Perl_floor floor
2184 # define Perl_fmod fmod
2185 # define Perl_log log
2186 # define Perl_log10 log10
2187 # define Perl_pow pow
2188 # define Perl_sin sin
2189 # define Perl_sinh sinh
2190 # define Perl_sqrt sqrt
2191 # define Perl_tan tan
2192 # define Perl_tanh tanh
2194 # define Perl_modf(x,y) modf(x,y)
2195 # define Perl_frexp(x,y) frexp(x,y)
2196 # define Perl_ldexp(x,y) ldexp(x,y)
2200 # define Perl_isnan(x) isnan(x)
2204 # if defined(HAS_ISINF)
2205 # define Perl_isinf(x) isinf(x)
2206 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2207 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2210 # ifndef Perl_isfinite
2211 # ifdef HAS_ISFINITE
2212 # define Perl_isfinite(x) isfinite(x)
2213 # elif defined(HAS_FINITE)
2214 # define Perl_isfinite(x) finite(x)
2219 /* fpclassify(): C99. It is supposed to be a macro that switches on
2220 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2221 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2223 # if defined(FP_INFINITE) && defined(FP_NAN)
2224 # define Perl_fp_class(x) fpclassify(x)
2225 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2226 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2227 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2228 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2229 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2230 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2231 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2232 * actually not the C99 fpclassify, with its own set of return defines. */
2233 # define Perl_fp_class(x) fpclassify(x)
2234 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2235 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2236 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2237 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2238 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2239 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2240 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2241 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2242 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2243 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2245 # undef Perl_fp_class /* Unknown set of defines */
2249 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2250 * are identical to the C99 fpclassify(). */
2251 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2254 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2256 /* oh, and the isnormal macro has a typo in it! */
2258 # define isnormal(x) Perl_fp_class_norm(x)
2260 # if defined(FP_INFINITE) && defined(FP_NAN)
2261 # define Perl_fp_class(x) fp_classify(x)
2262 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2263 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2264 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2265 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2266 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2268 # undef Perl_fp_class /* Unknown set of defines */
2272 /* Feel free to check with me for the SGI manpages, SGI testing,
2273 * etcetera, if you want to try getting this to work with IRIX.
2275 * - Allen <allens@cpan.org> */
2277 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2278 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2279 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2280 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2281 * Define some symbols also as cpp symbols so we can detect them. */
2282 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2283 # define FP_PINF FP_PINF
2284 # define FP_QNAN FP_QNAN
2288 # include <ieeefp.h>
2293 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2294 # define Perl_fp_class(x) fpclassl(x)
2296 # define Perl_fp_class(x) fpclass(x)
2298 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2299 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2300 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2301 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2302 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2303 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2304 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2305 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2306 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2307 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2308 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2309 # elif defined(FP_PINF) && defined(FP_QNAN)
2310 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2311 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2312 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2313 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2314 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2315 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2316 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2317 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2318 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2319 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2321 # undef Perl_fp_class /* Unknown set of defines */
2325 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2326 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2328 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2329 # include <fp_class.h>
2331 # if defined(FP_POS_INF) && defined(FP_QNAN)
2332 # ifdef __sgi /* XXX Configure test instead */
2333 # ifdef USE_LONG_DOUBLE
2334 # define Perl_fp_class(x) fp_class_l(x)
2336 # define Perl_fp_class(x) fp_class_d(x)
2339 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2340 # define Perl_fp_class(x) fp_classl(x)
2342 # define Perl_fp_class(x) fp_class(x)
2345 # if defined(FP_POS_INF) && defined(FP_QNAN)
2346 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2347 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2348 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2349 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2350 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2351 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2352 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2353 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2354 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2355 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2357 # undef Perl_fp_class /* Unknown set of defines */
2362 /* class(), _class(): Legacy: AIX. */
2363 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2365 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2367 # define Perl_fp_class(x) class(x)
2369 # define Perl_fp_class(x) _class(x)
2371 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2372 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2373 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2374 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2375 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2376 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2377 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2378 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2379 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2380 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2381 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2383 # undef Perl_fp_class /* Unknown set of defines */
2388 /* Win32: _fpclass(), _isnan(), _finite(). */
2391 # define Perl_isnan(x) _isnan(x)
2393 # ifndef Perl_isfinite
2394 # define Perl_isfinite(x) _finite(x)
2396 # ifndef Perl_fp_class_snan
2397 /* No simple way to #define Perl_fp_class because _fpclass()
2398 * returns a set of bits. */
2399 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2400 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2401 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2402 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2403 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2404 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2405 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2406 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2407 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2408 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2409 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2410 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2411 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2412 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2413 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2417 #if !defined(Perl_fp_class_inf) && \
2418 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2419 # define Perl_fp_class_inf(x) \
2420 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2423 #if !defined(Perl_fp_class_nan) && \
2424 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2425 # define Perl_fp_class_nan(x) \
2426 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2429 #if !defined(Perl_fp_class_zero) && \
2430 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2431 # define Perl_fp_class_zero(x) \
2432 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2435 #if !defined(Perl_fp_class_norm) && \
2436 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2437 # define Perl_fp_class_norm(x) \
2438 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2441 #if !defined(Perl_fp_class_denorm) && \
2442 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2443 # define Perl_fp_class_denorm(x) \
2444 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2448 # ifdef Perl_fp_class_nan
2449 # define Perl_isnan(x) Perl_fp_class_nan(x)
2450 # elif defined(HAS_UNORDERED)
2451 # define Perl_isnan(x) unordered((x), 0.0)
2453 # define Perl_isnan(x) ((x)!=(x))
2458 # ifdef Perl_fp_class_inf
2459 # define Perl_isinf(x) Perl_fp_class_inf(x)
2463 #ifndef Perl_isfinite
2464 # if defined(HAS_ISFINITE) && !defined(isfinite)
2465 # define Perl_isfinite(x) isfinite((double)(x))
2466 # elif defined(HAS_FINITE)
2467 # define Perl_isfinite(x) finite((double)(x))
2468 # elif defined(Perl_fp_class_finite)
2469 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2471 /* For the infinities the multiplication returns nan,
2472 * for the nan the multiplication also returns nan,
2473 * for everything else (that is, finite) zero should be returned. */
2474 # define Perl_isfinite(x) (((x) * 0) == 0)
2479 # if defined(Perl_isfinite) && defined(Perl_isnan)
2480 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2484 /* We need Perl_isfinitel (ends with ell) (if available) even when
2485 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2487 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2488 /* If isfinite() is a macro and looks like we have C99,
2489 * we assume it's the type-aware C99 isfinite(). */
2490 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2491 # define Perl_isfinitel(x) isfinite(x)
2492 # elif defined(HAS_ISFINITEL)
2493 # define Perl_isfinitel(x) isfinitel(x)
2494 # elif defined(HAS_FINITEL)
2495 # define Perl_isfinitel(x) finitel(x)
2496 # elif defined(HAS_INFL) && defined(HAS_NANL)
2497 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2499 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2503 /* The default is to use Perl's own atof() implementation (in numeric.c).
2504 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2505 * it is however best to use the native implementation of atof.
2506 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2507 * Some good tests to try out with either setting are t/base/num.t,
2508 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2509 * you may need to be using a different function than atof! */
2511 #ifndef USE_PERL_ATOF
2513 # define USE_PERL_ATOF
2516 # if USE_PERL_ATOF == 0
2517 # undef USE_PERL_ATOF
2521 #ifdef USE_PERL_ATOF
2522 # define Perl_atof(s) Perl_my_atof(s)
2523 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2525 # define Perl_atof(s) (NV)atof(s)
2526 # define Perl_atof2(s, n) ((n) = atof(s))
2528 #define my_atof2(a,b) my_atof3(a,b,0)
2531 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2532 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2533 * depending on local options. Until Configure detects this (or at least
2534 * detects whether the "signed" keyword is available) the CHAR ranges
2535 * will not be included. UCHAR functions normally.
2539 #define PERL_UCHAR_MIN ((unsigned char)0)
2540 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2542 #define PERL_USHORT_MIN ((unsigned short)0)
2543 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2545 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2546 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2548 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2549 #define PERL_UINT_MIN ((unsigned int)0)
2551 #define PERL_INT_MAX ((int)INT_MAX)
2552 #define PERL_INT_MIN ((int)INT_MIN)
2554 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2555 #define PERL_ULONG_MIN ((unsigned long)0L)
2557 #define PERL_LONG_MAX ((long)LONG_MAX)
2558 #define PERL_LONG_MIN ((long)LONG_MIN)
2561 # define PERL_UQUAD_MAX (~(UV)0)
2562 # define PERL_UQUAD_MIN ((UV)0)
2563 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2564 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2568 =head1 Numeric functions
2570 =for apidoc AmnUh||PERL_INT_MIN
2571 =for apidoc AmnUh||PERL_LONG_MAX
2572 =for apidoc AmnUh||PERL_LONG_MIN
2573 =for apidoc AmnUh||PERL_QUAD_MAX
2574 =for apidoc AmnUh||PERL_SHORT_MAX
2575 =for apidoc AmnUh||PERL_SHORT_MIN
2576 =for apidoc AmnUh||PERL_UCHAR_MAX
2577 =for apidoc AmnUh||PERL_UCHAR_MIN
2578 =for apidoc AmnUh||PERL_UINT_MAX
2579 =for apidoc AmnUh||PERL_ULONG_MAX
2580 =for apidoc AmnUh||PERL_ULONG_MIN
2581 =for apidoc AmnUh||PERL_UQUAD_MAX
2582 =for apidoc AmnUh||PERL_UQUAD_MIN
2583 =for apidoc AmnUh||PERL_USHORT_MAX
2584 =for apidoc AmnUh||PERL_USHORT_MIN
2585 =for apidoc AmnUh||PERL_QUAD_MIN
2586 =for apidoc AmnU||PERL_INT_MAX
2604 give the largest and smallest number representable in the current
2605 platform in variables of the corresponding types.
2607 For signed types, the smallest representable number is the most negative
2608 number, the one furthest away from zero.
2610 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2611 are available to the C code. But these constants, furnished by Perl,
2612 allow code compiled on earlier compilers to portably have access to the same
2619 typedef MEM_SIZE STRLEN;
2621 typedef struct op OP;
2622 typedef struct cop COP;
2623 typedef struct unop UNOP;
2624 typedef struct unop_aux UNOP_AUX;
2625 typedef struct binop BINOP;
2626 typedef struct listop LISTOP;
2627 typedef struct logop LOGOP;
2628 typedef struct pmop PMOP;
2629 typedef struct svop SVOP;
2630 typedef struct padop PADOP;
2631 typedef struct pvop PVOP;
2632 typedef struct loop LOOP;
2633 typedef struct methop METHOP;
2636 typedef struct opslab OPSLAB;
2637 typedef struct opslot OPSLOT;
2640 typedef struct block_hooks BHK;
2641 typedef struct custom_op XOP;
2643 typedef struct interpreter PerlInterpreter;
2645 /* SGI's <sys/sema.h> has struct sv */
2647 # define STRUCT_SV perl_sv
2649 # define STRUCT_SV sv
2651 typedef struct STRUCT_SV SV;
2652 typedef struct av AV;
2653 typedef struct hv HV;
2654 typedef struct cv CV;
2655 typedef struct p5rx REGEXP;
2656 typedef struct gp GP;
2657 typedef struct gv GV;
2658 typedef struct io IO;
2659 typedef struct context PERL_CONTEXT;
2660 typedef struct block BLOCK;
2662 typedef struct magic MAGIC;
2663 typedef struct xpv XPV;
2664 typedef struct xpviv XPVIV;
2665 typedef struct xpvuv XPVUV;
2666 typedef struct xpvnv XPVNV;
2667 typedef struct xpvmg XPVMG;
2668 typedef struct xpvlv XPVLV;
2669 typedef struct xpvinvlist XINVLIST;
2670 typedef struct xpvav XPVAV;
2671 typedef struct xpvhv XPVHV;
2672 typedef struct xpvgv XPVGV;
2673 typedef struct xpvcv XPVCV;
2674 typedef struct xpvbm XPVBM;
2675 typedef struct xpvfm XPVFM;
2676 typedef struct xpvio XPVIO;
2677 typedef struct mgvtbl MGVTBL;
2678 typedef union any ANY;
2679 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2680 typedef struct ptr_tbl PTR_TBL_t;
2681 typedef struct clone_params CLONE_PARAMS;
2683 /* a pad is currently just an AV; but that might change,
2684 * so hide the type. */
2685 typedef struct padlist PADLIST;
2687 typedef struct padnamelist PADNAMELIST;
2688 typedef struct padname PADNAME;
2690 /* always enable PERL_OP_PARENT */
2691 #if !defined(PERL_OP_PARENT)
2692 # define PERL_OP_PARENT
2695 /* enable PERL_COPY_ON_WRITE by default */
2696 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2697 # define PERL_COPY_ON_WRITE
2700 #ifdef PERL_COPY_ON_WRITE
2701 # define PERL_ANY_COW
2703 # define PERL_SAWAMPERSAND
2706 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2707 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2711 #include "charclass_invlists.h"
2713 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2714 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2715 # define USE_64_BIT_RAWIO /* implicit */
2719 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2720 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2721 * however, because operating systems like to do that themself. */
2724 # define FSEEKSIZE LSEEKSIZE
2726 # define FSEEKSIZE LONGSIZE
2730 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2731 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2732 # define USE_64_BIT_STDIO /* implicit */
2736 #ifdef USE_64_BIT_RAWIO
2739 # define Off_t off64_t
2741 # define LSEEKSIZE 8
2743 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2744 * will trigger defines like the ones below. Some 64-bit environments,
2745 * however, do not. Therefore we have to explicitly mix and match. */
2746 # if defined(USE_OPEN64)
2747 # define open open64
2749 # if defined(USE_LSEEK64)
2750 # define lseek lseek64
2752 # if defined(USE_LLSEEK)
2753 # define lseek llseek
2756 # if defined(USE_STAT64)
2757 # define stat stat64
2759 # if defined(USE_FSTAT64)
2760 # define fstat fstat64
2762 # if defined(USE_LSTAT64)
2763 # define lstat lstat64
2765 # if defined(USE_FLOCK64)
2766 # define flock flock64
2768 # if defined(USE_LOCKF64)
2769 # define lockf lockf64
2771 # if defined(USE_FCNTL64)
2772 # define fcntl fcntl64
2774 # if defined(USE_TRUNCATE64)
2775 # define truncate truncate64
2777 # if defined(USE_FTRUNCATE64)
2778 # define ftruncate ftruncate64
2782 #ifdef USE_64_BIT_STDIO
2783 # ifdef HAS_FPOS64_T
2785 # define Fpos_t fpos64_t
2787 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2788 * will trigger defines like the ones below. Some 64-bit environments,
2789 * however, do not. */
2790 # if defined(USE_FOPEN64)
2791 # define fopen fopen64
2793 # if defined(USE_FSEEK64)
2794 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2796 # if defined(USE_FTELL64)
2797 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2799 # if defined(USE_FSETPOS64)
2800 # define fsetpos fsetpos64
2802 # if defined(USE_FGETPOS64)
2803 # define fgetpos fgetpos64
2805 # if defined(USE_TMPFILE64)
2806 # define tmpfile tmpfile64
2808 # if defined(USE_FREOPEN64)
2809 # define freopen freopen64
2814 # include "iperlsys.h"
2819 # include "os2ish.h"
2821 # include "dosish.h"
2824 # include "vmsish.h"
2825 #elif defined(PLAN9)
2826 # include "./plan9/plan9ish.h"
2827 #elif defined(__VOS__)
2829 # include "./vos/vosish.h"
2831 # include "vos/vosish.h"
2833 #elif defined(__HAIKU__)
2834 # include "haiku/haikuish.h"
2836 # include "unixish.h"
2840 # include "amigaos.h"
2841 # undef FD_CLOEXEC /* a lie in AmigaOS */
2844 /* NSIG logic from Configure --> */
2847 # define NSIG (_NSIG)
2848 # elif defined(SIGMAX)
2849 # define NSIG (SIGMAX+1)
2850 # elif defined(SIG_MAX)
2851 # define NSIG (SIG_MAX+1)
2852 # elif defined(_SIG_MAX)
2853 # define NSIG (_SIG_MAX+1)
2854 # elif defined(MAXSIG)
2855 # define NSIG (MAXSIG+1)
2856 # elif defined(MAX_SIG)
2857 # define NSIG (MAX_SIG+1)
2858 # elif defined(SIGARRAYSIZE)
2859 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2860 # elif defined(_sys_nsig)
2861 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2863 /* Default to some arbitrary number that's big enough to get most
2864 * of the common signals. */
2868 /* <-- NSIG logic from Configure */
2870 #ifndef NO_ENVIRON_ARRAY
2871 # define USE_ENVIRON_ARRAY
2875 /* On some platforms it would be safe to use a read/write mutex with many
2876 * readers possible at the same time. On other platforms, notably IBM ones,
2877 * subsequent getenv calls destroy earlier ones. Those platforms would not
2878 * be able to handle simultaneous getenv calls */
2879 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2880 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2881 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2882 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2884 # define ENV_LOCK NOOP;
2885 # define ENV_UNLOCK NOOP;
2886 # define ENV_INIT NOOP;
2887 # define ENV_TERM NOOP;
2890 /* Some critical sections need to lock both the locale and the environment.
2891 * XXX khw intends to change this to lock both mutexes, but that brings up
2892 * issues of potential deadlock, so should be done at the beginning of a
2893 * development cycle. So for now, it just locks the environment. Note that
2894 * many modern platforms are locale-thread-safe anyway, so locking the locale
2895 * mutex is a no-op anyway */
2896 #define ENV_LOCALE_LOCK ENV_LOCK
2897 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2899 /* And some critical sections care only that no one else is writing either the
2900 * locale nor the environment. XXX Again this is for the future. This can be
2901 * simulated with using COND_WAIT in thread.h */
2902 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2903 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2905 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2906 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2907 * signal handlers. But the perl core itself only fully supports 1-arg
2908 * handlers, so don't enable for now.
2909 * NB: POSIX::sigaction() supports both.
2911 * # define PERL_USE_3ARG_SIGHANDLER
2916 * This is an alias for the OS's siginfo_t, except that where the OS
2917 * doesn't support it, declare a dummy version instead. This allows us to
2918 * have signal handler functions which always have a Siginfo_t parameter
2919 * regardless of platform, (and which will just be passed a NULL value
2920 * where the OS doesn't support HAS_SIGACTION).
2923 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2924 typedef siginfo_t Siginfo_t;
2926 #ifdef si_signo /* minix */
2936 * initialise to avoid floating-point exceptions from overflow, etc
2938 #ifndef PERL_FPU_INIT
2939 # ifdef HAS_FPSETMASK
2940 # if HAS_FLOATINGPOINT_H
2941 # include <floatingpoint.h>
2943 /* Some operating systems have this as a macro, which in turn expands to a comma
2944 expression, and the last sub-expression is something that gets calculated,
2945 and then they have the gall to warn that a value computed is not used. Hence
2947 # define PERL_FPU_INIT (void)fpsetmask(0)
2948 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2949 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2950 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2951 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2953 # define PERL_FPU_INIT
2956 #ifndef PERL_FPU_PRE_EXEC
2957 # define PERL_FPU_PRE_EXEC {
2958 # define PERL_FPU_POST_EXEC }
2961 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2962 * We need to reenable the "invalid" trap because otherwise generation
2963 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2964 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2966 # include <machine/fpu.h>
2967 # define PERL_SYS_FPU_INIT \
2969 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2970 signal(SIGFPE, SIG_IGN); \
2973 /* In IRIX the default for Flush to Zero bit is true,
2974 * which means that results going below the minimum of normal
2975 * floating points go to zero, instead of going denormal/subnormal.
2976 * This is unlike almost any other system running Perl, so let's clear it.
2977 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2978 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2980 * XXX The flush-to-zero behaviour should be a Configure scan.
2981 * To change the behaviour usually requires some system-specific
2982 * incantation, though, like the below. */
2984 # include <sys/fpu.h>
2985 # define PERL_SYS_FPU_INIT \
2987 union fpc_csr csr; \
2988 csr.fc_word = get_fpc_csr(); \
2989 csr.fc_struct.flush = 0; \
2990 set_fpc_csr(csr.fc_word); \
2994 #ifndef PERL_SYS_FPU_INIT
2995 # define PERL_SYS_FPU_INIT NOOP
2998 #ifndef PERL_SYS_INIT3_BODY
2999 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3003 =head1 Miscellaneous Functions
3005 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3006 Provides system-specific tune up of the C runtime environment necessary to
3007 run Perl interpreters. This should be called only once, before creating
3008 any Perl interpreters.
3010 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3011 Provides system-specific tune up of the C runtime environment necessary to
3012 run Perl interpreters. This should be called only once, before creating
3013 any Perl interpreters.
3015 =for apidoc Am|void|PERL_SYS_TERM|
3016 Provides system-specific clean up of the C runtime environment after
3017 running Perl interpreters. This should be called only once, after
3018 freeing any remaining Perl interpreters.
3023 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3024 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3025 #define PERL_SYS_TERM() Perl_sys_term()
3027 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3028 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3033 # ifdef _POSIX_PATH_MAX
3034 # if PATH_MAX > _POSIX_PATH_MAX
3035 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3036 * included the null byte or not. Later amendments of POSIX,
3037 * XPG4, the Austin Group, and the Single UNIX Specification
3038 * all explicitly include the null byte in the PATH_MAX.
3039 * Ditto for _POSIX_PATH_MAX. */
3040 # define MAXPATHLEN PATH_MAX
3042 # define MAXPATHLEN _POSIX_PATH_MAX
3045 # define MAXPATHLEN (PATH_MAX+1)
3048 # define MAXPATHLEN 1024 /* Err on the large side. */
3052 /* clang Thread Safety Analysis/Annotations/Attributes
3053 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3055 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3056 * Apple XCode hijacks __clang_major__ and __clang_minor__
3057 * (6.1 means really clang 3.6), so needs extra hijinks
3058 * (could probably also test the contents of __apple_build_version__).
3060 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3061 defined(__clang__) && \
3063 ((!defined(__apple_build_version__) && \
3064 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3065 (__clang_major__ >= 4))) || \
3066 (defined(__apple_build_version__) && \
3067 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3068 (__clang_major__ >= 7))))
3069 # define PERL_TSA__(x) __attribute__((x))
3070 # define PERL_TSA_ACTIVE
3072 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3073 # undef PERL_TSA_ACTIVE
3076 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3077 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3079 #define PERL_TSA_CAPABILITY(x) \
3080 PERL_TSA__(capability(x))
3082 /* In the below examples the mutex must be lexically visible, usually
3083 * either as global variables, or as function arguments. */
3085 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3087 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3089 #define PERL_TSA_GUARDED_BY(x) \
3090 PERL_TSA__(guarded_by(x))
3092 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3093 * The data _behind_ the pointer is guarded.
3095 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3097 #define PERL_TSA_PT_GUARDED_BY(x) \
3098 PERL_TSA__(pt_guarded_by(x))
3100 /* PERL_TSA_REQUIRES() is used to annotate functions.
3101 * The caller MUST hold the resource when calling the function.
3103 * void Foo() PERL_TSA_REQUIRES(mutex);
3105 #define PERL_TSA_REQUIRES(x) \
3106 PERL_TSA__(requires_capability(x))
3108 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3109 * The caller MUST NOT hold resource when calling the function.
3111 * EXCLUDES should be used when the function first acquires
3112 * the resource and then releases it. Use to avoid deadlock.
3114 * void Foo() PERL_TSA_EXCLUDES(mutex);
3116 #define PERL_TSA_EXCLUDES(x) \
3117 PERL_TSA__(locks_excluded(x))
3119 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3120 * The caller MUST NOT hold the resource when calling the function,
3121 * and the function will acquire the resource.
3123 * void Foo() PERL_TSA_ACQUIRE(mutex);
3125 #define PERL_TSA_ACQUIRE(x) \
3126 PERL_TSA__(acquire_capability(x))
3128 /* PERL_TSA_RELEASE() is used to annotate functions.
3129 * The caller MUST hold the resource when calling the function,
3130 * and the function will release the resource.
3132 * void Foo() PERL_TSA_RELEASE(mutex);
3134 #define PERL_TSA_RELEASE(x) \
3135 PERL_TSA__(release_capability(x))
3137 /* PERL_TSA_NO_TSA is used to annotate functions.
3138 * Used when being intentionally unsafe, or when the code is too
3139 * complicated for the analysis. Use sparingly.
3141 * void Foo() PERL_TSA_NO_TSA;
3143 #define PERL_TSA_NO_TSA \
3144 PERL_TSA__(no_thread_safety_analysis)
3146 /* There are more annotations/attributes available, see the clang
3147 * documentation for details. */
3149 #if defined(USE_ITHREADS)
3151 # include <nw5thread.h>
3152 # elif defined(WIN32)
3153 # include <win32thread.h>
3155 # include "os2thread.h"
3156 # elif defined(I_MACH_CTHREADS)
3157 # include <mach/cthreads.h>
3158 typedef cthread_t perl_os_thread;
3159 typedef mutex_t perl_mutex;
3160 typedef condition_t perl_cond;
3161 typedef void * perl_key;
3162 # elif defined(I_PTHREAD) /* Posix threads */
3163 # include <pthread.h>
3164 typedef pthread_t perl_os_thread;
3165 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3166 typedef pthread_cond_t perl_cond;
3167 typedef pthread_key_t perl_key;
3169 #endif /* USE_ITHREADS */
3171 #ifdef PERL_TSA_ACTIVE
3172 /* Since most pthread mutex interfaces have not been annotated, we
3173 * need to have these wrappers. The NO_TSA annotation is quite ugly
3174 * but it cannot be avoided in plain C, unlike in C++, where one could
3175 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3177 * The bodies of these wrappers are in util.c
3179 * TODO: however, some platforms are starting to get these clang
3180 * thread safety annotations for pthreads, for example FreeBSD.
3181 * Do we need a way to a bypass these wrappers? */
3182 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3183 PERL_TSA_ACQUIRE(*mutex)
3185 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3186 PERL_TSA_RELEASE(*mutex)
3195 # include "netware.h"
3198 #define STATUS_UNIX PL_statusvalue
3200 # define STATUS_NATIVE PL_statusvalue_vms
3202 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3203 * its contents can not be trusted. Unfortunately, Perl seems to check
3204 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3207 # include <stsdef.h>
3209 /* Presume this because if VMS changes it, it will require a new
3210 * set of APIs for waiting on children for binary compatibility.
3212 # define child_offset_bits (8)
3213 # ifndef C_FAC_POSIX
3214 # define C_FAC_POSIX 0x35A000
3217 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3218 * platform from the existing UNIX or Native status values.
3221 # define STATUS_EXIT \
3222 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3223 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3226 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3227 * exit code and shifts the UNIX value over the correct number of bits to
3228 * be a child status. Usually the number of bits is 8, but that could be
3229 * platform dependent. The NATIVE status code is presumed to have either
3230 * from a child process.
3233 /* This is complicated. The child processes return a true native VMS
3234 status which must be saved. But there is an assumption in Perl that
3235 the UNIX child status has some relationship to errno values, so
3236 Perl tries to translate it to text in some of the tests.
3237 In order to get the string translation correct, for the error, errno
3238 must be EVMSERR, but that generates a different text message
3239 than what the test programs are expecting. So an errno value must
3240 be derived from the native status value when an error occurs.
3241 That will hide the true native status message. With this version of
3242 perl, the true native child status can always be retrieved so that
3243 is not a problem. But in this case, Pl_statusvalue and errno may
3244 have different values in them.
3247 # define STATUS_NATIVE_CHILD_SET(n) \
3249 I32 evalue = (I32)n; \
3250 if (evalue == EVMSERR) { \
3251 PL_statusvalue_vms = vaxc$errno; \
3252 PL_statusvalue = evalue; \
3254 PL_statusvalue_vms = evalue; \
3255 if (evalue == -1) { \
3256 PL_statusvalue = -1; \
3257 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3259 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3260 set_vaxc_errno(evalue); \
3261 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3262 set_errno(EVMSERR); \
3263 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3264 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3268 # ifdef VMSISH_STATUS
3269 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3271 # define STATUS_CURRENT STATUS_UNIX
3274 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3275 * the NATIVE status to an equivalent value. Can not be used to translate
3276 * exit code values as exit code values are not guaranteed to have any
3277 * relationship at all to errno values.
3278 * This is used when Perl is forcing errno to have a specific value.
3280 # define STATUS_UNIX_SET(n) \
3282 I32 evalue = (I32)n; \
3283 PL_statusvalue = evalue; \
3284 if (PL_statusvalue != -1) { \
3285 if (PL_statusvalue != EVMSERR) { \
3286 PL_statusvalue &= 0xFFFF; \
3287 if (MY_POSIX_EXIT) \
3288 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3289 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3292 PL_statusvalue_vms = vaxc$errno; \
3295 else PL_statusvalue_vms = SS$_ABORT; \
3296 set_vaxc_errno(PL_statusvalue_vms); \
3299 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3300 * the NATIVE error status based on it.
3302 * When in the default mode to comply with the Perl VMS documentation,
3303 * 0 is a success and any other code sets the NATIVE status to a failure
3304 * code of SS$_ABORT.
3306 * In the new POSIX EXIT mode, native status will be set so that the
3307 * actual exit code will can be retrieved by the calling program or
3310 * If the exit code is not clearly a UNIX parent or child exit status,
3311 * it will be passed through as a VMS status.
3314 # define STATUS_UNIX_EXIT_SET(n) \
3316 I32 evalue = (I32)n; \
3317 PL_statusvalue = evalue; \
3318 if (MY_POSIX_EXIT) { \
3319 if (evalue <= 0xFF00) { \
3320 if (evalue > 0xFF) \
3321 evalue = (evalue >> child_offset_bits) & 0xFF; \
3322 PL_statusvalue_vms = \
3323 (C_FAC_POSIX | (evalue << 3 ) | \
3324 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3325 } else /* forgive them Perl, for they have sinned */ \
3326 PL_statusvalue_vms = evalue; \
3329 PL_statusvalue_vms = SS$_NORMAL; \
3330 else if (evalue <= 0xFF00) \
3331 PL_statusvalue_vms = SS$_ABORT; \
3332 else { /* forgive them Perl, for they have sinned */ \
3333 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3334 else PL_statusvalue_vms = vaxc$errno; \
3335 /* And obviously used a VMS status value instead of UNIX */ \
3336 PL_statusvalue = EVMSERR; \
3338 set_vaxc_errno(PL_statusvalue_vms); \
3343 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3344 * and sets the NATIVE error status based on it. This special case
3345 * is needed to maintain compatibility with past VMS behavior.
3347 * In the default mode on VMS, this number is passed through as
3348 * both the NATIVE and UNIX status. Which makes it different
3349 * that the STATUS_UNIX_EXIT_SET.
3351 * In the new POSIX EXIT mode, native status will be set so that the
3352 * actual exit code will can be retrieved by the calling program or
3355 * A POSIX exit code is from 0 to 255. If the exit code is higher
3356 * than this, it needs to be assumed that it is a VMS exit code and
3360 # define STATUS_EXIT_SET(n) \
3362 I32 evalue = (I32)n; \
3363 PL_statusvalue = evalue; \
3364 if (MY_POSIX_EXIT) \
3365 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3366 PL_statusvalue_vms = \
3367 (C_FAC_POSIX | (evalue << 3 ) | \
3368 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3370 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3371 set_vaxc_errno(PL_statusvalue_vms); \
3375 /* This macro forces a success status */
3376 # define STATUS_ALL_SUCCESS \
3377 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3379 /* This macro forces a failure status */
3380 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3381 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3382 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3384 #elif defined(__amigaos4__)
3385 /* A somewhat experimental attempt to simulate posix return code values */
3386 # define STATUS_NATIVE PL_statusvalue_posix
3387 # define STATUS_NATIVE_CHILD_SET(n) \
3389 PL_statusvalue_posix = (n); \
3390 if (PL_statusvalue_posix < 0) { \
3391 PL_statusvalue = -1; \
3394 PL_statusvalue = n << 8; \
3397 # define STATUS_UNIX_SET(n) \
3399 PL_statusvalue = (n); \
3400 if (PL_statusvalue != -1) \
3401 PL_statusvalue &= 0xFFFF; \
3403 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3404 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3405 # define STATUS_CURRENT STATUS_UNIX
3406 # define STATUS_EXIT STATUS_UNIX
3407 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3408 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3411 # define STATUS_NATIVE PL_statusvalue_posix
3412 # if defined(WCOREDUMP)
3413 # define STATUS_NATIVE_CHILD_SET(n) \
3415 PL_statusvalue_posix = (n); \
3416 if (PL_statusvalue_posix == -1) \
3417 PL_statusvalue = -1; \
3420 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3421 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3422 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3425 # elif defined(WIFEXITED)
3426 # define STATUS_NATIVE_CHILD_SET(n) \
3428 PL_statusvalue_posix = (n); \
3429 if (PL_statusvalue_posix == -1) \
3430 PL_statusvalue = -1; \
3433 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3434 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3438 # define STATUS_NATIVE_CHILD_SET(n) \
3440 PL_statusvalue_posix = (n); \
3441 if (PL_statusvalue_posix == -1) \
3442 PL_statusvalue = -1; \
3445 PL_statusvalue_posix & 0xFFFF; \
3449 # define STATUS_UNIX_SET(n) \
3451 PL_statusvalue = (n); \
3452 if (PL_statusvalue != -1) \
3453 PL_statusvalue &= 0xFFFF; \
3455 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3456 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3457 # define STATUS_CURRENT STATUS_UNIX
3458 # define STATUS_EXIT STATUS_UNIX
3459 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3460 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3463 /* flags in PL_exit_flags for nature of exit() */
3464 #define PERL_EXIT_EXPECTED 0x01
3465 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3466 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3467 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3470 /* format to use for version numbers in file/directory names */
3471 /* XXX move to Configure? */
3472 /* This was only ever used for the current version, and that can be done at
3473 compile time, as PERL_FS_VERSION, so should we just delete it? */
3474 # ifndef PERL_FS_VER_FMT
3475 # define PERL_FS_VER_FMT "%d.%d.%d"
3479 #ifndef PERL_FS_VERSION
3480 # define PERL_FS_VERSION PERL_VERSION_STRING
3483 /* This defines a way to flush all output buffers. This may be a
3484 * performance issue, so we allow people to disable it. Also, if
3485 * we are using stdio, there are broken implementations of fflush(NULL)
3486 * out there, Solaris being the most prominent.
3488 #ifndef PERL_FLUSHALL_FOR_CHILD
3489 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3490 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3491 # elif defined(FFLUSH_ALL)
3492 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3494 # define PERL_FLUSHALL_FOR_CHILD NOOP
3498 #ifndef PERL_WAIT_FOR_CHILDREN
3499 # define PERL_WAIT_FOR_CHILDREN NOOP
3502 /* the traditional thread-unsafe notion of "current interpreter". */
3503 #ifndef PERL_SET_INTERP
3504 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3507 #ifndef PERL_GET_INTERP
3508 # define PERL_GET_INTERP (PL_curinterp)
3511 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3512 # ifdef MULTIPLICITY
3513 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3515 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3519 This replaces the previous %_ "hack" by the "%p" hacks.
3520 All that is required is that the perl source does not
3521 use "%-p" or "%-<number>p" or "%<number>p" formats.
3522 These formats will still work in perl code.
3523 See comments in sv.c for further details.
3525 Robin Barker 2005-07-14
3527 No longer use %1p for VDf = %vd. RMB 2007-10-19
3531 # define SVf_(n) "-" STRINGIFY(n) "p"
3539 # define SVf32 SVf_(32)
3543 # define SVf256 SVf_(256)
3546 #define SVfARG(p) ((void*)(p))
3552 /* Not ideal, but we cannot easily include a number in an already-numeric
3553 * format sequence. */
3555 # define HEKf256 "3p"
3558 #define HEKfARG(p) ((void*)(p))
3561 =for apidoc Amnh||UTF8f
3562 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3565 * %4p is a custom format
3568 # define UTF8f "d%" UVuf "%4p"
3570 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3573 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3576 /* not used; but needed for backward compatibility with XS code? - RMB */
3582 #if !defined(DEBUGGING) && !defined(NDEBUG)
3587 /* For functions that are marked as __attribute__noreturn__, it's not
3588 appropriate to call return. In either case, include the lint directive.
3590 #ifdef HASATTRIBUTE_NORETURN
3591 # define NORETURN_FUNCTION_END NOT_REACHED;
3593 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3596 #ifdef HAS_BUILTIN_EXPECT
3597 # define EXPECT(expr,val) __builtin_expect(expr,val)
3599 # define EXPECT(expr,val) (expr)
3603 =head1 Miscellaneous Functions
3605 =for apidoc AmU|bool|LIKELY|const bool expr
3607 Returns the input unchanged, but at the same time it gives a branch prediction
3608 hint to the compiler that this condition is likely to be true.
3610 =for apidoc AmU|bool|UNLIKELY|const bool expr
3612 Returns the input unchanged, but at the same time it gives a branch prediction
3613 hint to the compiler that this condition is likely to be false.
3617 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3618 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3620 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3624 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3625 time invariants. That is, their argument must be a constant expression that
3626 can be verified by the compiler. This expression can contain anything that's
3627 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3628 the expression evaluates to 0, compilation fails.
3629 Because they generate no runtime code (i.e. their use is "free"), they're
3630 always active, even under non-DEBUGGING builds.
3631 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3632 file scope (outside of any function).
3633 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3636 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3637 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3638 || (__STDC_VERSION__ - 0) >= 201101L)) \
3639 || (defined(__cplusplus) && __cplusplus >= 201103L))
3640 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3641 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3642 matter what <assert.h> says.
3644 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3646 /* We use a bit-field instead of an array because gcc accepts
3647 'typedef char x[n]' where n is not a compile-time constant.
3648 We want to enforce constantness.
3650 # define STATIC_ASSERT_2(COND, SUFFIX) \
3652 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3653 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3654 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3655 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3657 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3658 error (static_assert is a declaration, and only statements can have labels).
3660 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3662 #ifndef __has_builtin
3663 # define __has_builtin(x) 0 /* not a clang style compiler */
3666 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3667 hint to a compiler about a statement of fact in a function call free
3668 expression, which allows the compiler to generate better machine code.
3669 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3670 the control path is unreachable. In a for loop, ASSUME can be used to hint
3671 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3672 intrinsic function, see its documents for more details.
3676 # if __has_builtin(__builtin_unreachable) \
3677 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3678 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3679 # elif defined(_MSC_VER)
3680 # define ASSUME(x) __assume(x)
3681 # elif defined(__ARMCC_VERSION) /* untested */
3682 # define ASSUME(x) __promise(x)
3684 /* a random compiler might define assert to its own special optimization token
3685 so pass it through to C lib as a last resort */
3686 # define ASSUME(x) assert(x)
3689 # define ASSUME(x) assert(x)
3692 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3693 # define NOT_REACHED
3694 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3695 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3696 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3698 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3701 /* Some unistd.h's give a prototype for pause() even though
3702 HAS_PAUSE ends up undefined. This causes the #define
3703 below to be rejected by the compiler. Sigh.
3708 #define Pause() sleep((32767<<16)+32767)
3712 # ifdef IOCPARM_MASK
3713 /* on BSDish systems we're safe */
3714 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3715 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3716 /* on Linux systems we're safe; except when we're not [perl #38223] */
3717 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3719 /* otherwise guess at what's safe */
3720 # define IOCPARM_LEN(x) 256
3724 #if defined(__CYGWIN__)
3726 * This symbol, if defined, indicates that the program should
3727 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3728 * that a file is in "binary" mode -- that is, that no translation
3729 * of bytes occurs on read or write operations.
3731 # define USEMYBINMODE /**/
3732 # include <io.h> /* for setmode() prototype */
3733 # define my_binmode(fp, iotype, mode) \
3734 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3738 void init_os_extras(void);
3741 #ifdef UNION_ANY_DEFINITION
3742 UNION_ANY_DEFINITION;
3760 void (*any_dptr) (void*);
3761 void (*any_dxptr) (pTHX_ void*);
3765 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3767 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3768 #define FILTER_DATA(idx) \
3769 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3770 #define FILTER_ISREADER(idx) \
3771 (PL_parser && PL_parser->rsfp_filters \
3772 && idx >= AvFILLp(PL_parser->rsfp_filters))
3773 #define PERL_FILTER_EXISTS(i) \
3774 (PL_parser && PL_parser->rsfp_filters \
3775 && (i) <= av_tindex(PL_parser->rsfp_filters))
3777 #if defined(_AIX) && !defined(_AIX43)
3778 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3779 /* We cannot include <crypt.h> to get the struct crypt_data
3780 * because of setkey prototype problems when threading */
3781 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3782 /* From OSF, Not needed in AIX
3790 #endif /* threading */
3793 #ifndef PERL_CALLCONV
3795 # define PERL_CALLCONV extern "C"
3797 # define PERL_CALLCONV
3800 #ifndef PERL_CALLCONV_NO_RET
3801 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3804 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3805 dont have a noreturn as a declaration specifier
3807 #ifndef PERL_STATIC_NO_RET
3808 # define PERL_STATIC_NO_RET STATIC
3810 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3811 builds that dont have a noreturn as a declaration specifier
3813 #ifndef PERL_STATIC_INLINE_NO_RET
3814 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3817 #ifndef PERL_STATIC_FORCE_INLINE
3818 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3821 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3822 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3826 # include "iperlsys.h"
3829 #ifdef __LIBCATAMOUNT__
3830 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3832 #define FAKE_BIT_BUCKET
3835 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3836 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3837 * Configure, despite their names being similar to other defines like
3838 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3839 * hashes. Therefore to enable/disable the hash randomisation defines
3840 * use the Configure -Accflags=... instead. */
3841 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3842 # define USE_HASH_SEED
3848 /* macros to define bit-fields in structs. */
3849 #ifndef PERL_BITFIELD8
3850 # define PERL_BITFIELD8 U8
3852 #ifndef PERL_BITFIELD16
3853 # define PERL_BITFIELD16 U16
3855 #ifndef PERL_BITFIELD32
3856 # define PERL_BITFIELD32 U32
3866 #include "opnames.h"
3873 #include "warnings.h"
3876 /* these would be in doio.h if there was such a file */
3877 #define my_stat() my_stat_flags(SV_GMAGIC)
3878 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3880 /* defined in sv.c, but also used in [ach]v.c */
3883 #undef _XPVCV_COMMON
3887 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3889 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3891 /* These have to be predeclared, as they are used in proto.h which is #included
3892 * before their definitions in regcomp.h. */
3895 typedef struct regnode_charclass regnode_charclass;
3897 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3898 * used under /l matching */
3899 typedef struct regnode_charclass_posixl regnode_charclass_class;
3900 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3902 typedef struct regnode_ssc regnode_ssc;
3903 typedef struct RExC_state_t RExC_state_t;
3904 struct _reg_trie_data;
3908 struct ptr_tbl_ent {
3909 struct ptr_tbl_ent* next;
3915 struct ptr_tbl_ent** tbl_ary;
3918 struct ptr_tbl_arena *tbl_arena;
3919 struct ptr_tbl_ent *tbl_arena_next;
3920 struct ptr_tbl_ent *tbl_arena_end;
3923 #if defined(htonl) && !defined(HAS_HTONL)
3926 #if defined(htons) && !defined(HAS_HTONS)
3929 #if defined(ntohl) && !defined(HAS_NTOHL)
3932 #if defined(ntohs) && !defined(HAS_NTOHS)
3940 # if (BYTEORDER & 0xffff) == 0x4321
3941 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3942 re-order their values. However, to behave identically to the alternative
3943 implementations, they should truncate to the correct size. */
3944 # define ntohl(x) ((x)&0xFFFFFFFF)
3945 # define htonl(x) ntohl(x)
3946 # define ntohs(x) ((x)&0xFFFF)
3947 # define htons(x) ntohs(x)
3948 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3950 /* Note that we can't straight out declare our own htonl and htons because
3951 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3952 to avoid the overhead of initialising the socket subsystem, but the headers
3953 that *declare* the various functions are still seen. If we declare our own
3954 htonl etc they will clash with the declarations in the Win32 headers. */
3956 PERL_STATIC_INLINE U32
3957 my_swap32(const U32 x) {
3958 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3959 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3962 PERL_STATIC_INLINE U16
3963 my_swap16(const U16 x) {
3964 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3967 # define htonl(x) my_swap32(x)
3968 # define ntohl(x) my_swap32(x)
3969 # define ntohs(x) my_swap16(x)
3970 # define htons(x) my_swap16(x)
3972 # error "Unsupported byteorder"
3973 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3974 the error message. Please check the value of the macro BYTEORDER, as defined
3975 in config.h. The values of BYTEORDER we expect are
3977 big endian little endian
3978 32 bit 0x4321 0x1234
3979 64 bit 0x87654321 0x12345678
3981 If you have a system with a different byte order, please see
3982 pod/perlhack.pod for how to submit a patch to add supporting code.
3988 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3991 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3992 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3993 re-order their values. However, to behave identically to the alternative
3994 implementations, they should truncate to the correct size. */
3995 # define vtohl(x) ((x)&0xFFFFFFFF)
3996 # define vtohs(x) ((x)&0xFFFF)
3997 # define htovl(x) vtohl(x)
3998 # define htovs(x) vtohs(x)
3999 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4000 # define vtohl(x) ((((x)&0xFF)<<24) \
4002 +(((x)&0x0000FF00)<<8) \
4003 +(((x)&0x00FF0000)>>8) )
4004 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4005 # define htovl(x) vtohl(x)
4006 # define htovs(x) vtohs(x)
4008 # error "Unsupported byteorder"
4009 /* If you have need for current perl on PDP-11 or similar, and can help test
4010 that blead keeps working on a mixed-endian system, then see
4011 pod/perlhack.pod for how to submit patches to things working again. */
4014 /* *MAX Plus 1. A floating point value.
4015 Hopefully expressed in a way that dodgy floating point can't mess up.
4016 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4018 May find that some broken compiler will want the value cast to I32.
4019 [after the shift, as signed >> may not be as secure as unsigned >>]
4021 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4022 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4023 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4024 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4025 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4027 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4029 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4030 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4031 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4033 /* This may look like unnecessary jumping through hoops, but converting
4034 out of range floating point values to integers *is* undefined behaviour,
4035 and it is starting to bite.
4038 #define I_32(what) (cast_i32((NV)(what)))
4039 #define U_32(what) (cast_ulong((NV)(what)))
4040 #define I_V(what) (cast_iv((NV)(what)))
4041 #define U_V(what) (cast_uv((NV)(what)))
4043 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4044 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4045 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4046 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4047 : ((n) < U32_MAX_P1 ? (U32) (n) \
4048 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4049 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4050 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4051 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4052 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4053 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4054 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4057 #define U_S(what) ((U16)U_32(what))
4058 #define U_I(what) ((unsigned int)U_32(what))
4059 #define U_L(what) U_32(what)
4062 # ifndef Perl_signbit
4063 # define Perl_signbit signbit
4067 /* These do not care about the fractional part, only about the range. */
4068 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4069 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4071 /* Used with UV/IV arguments: */
4072 /* XXXX: need to speed it up */
4073 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4074 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4082 Uid_t getuid (void);
4083 Uid_t geteuid (void);
4084 Gid_t getgid (void);
4085 Gid_t getegid (void);
4089 #ifndef Perl_debug_log
4090 # define Perl_debug_log PerlIO_stderr()
4093 #ifndef Perl_error_log
4094 # define Perl_error_log (PL_stderrgv \
4095 && isGV(PL_stderrgv) \
4096 && GvIOp(PL_stderrgv) \
4097 && IoOFP(GvIOp(PL_stderrgv)) \
4098 ? IoOFP(GvIOp(PL_stderrgv)) \
4103 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4104 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4105 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4106 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4107 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4108 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4109 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4110 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4111 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4112 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4113 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4114 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4115 /* U is reserved for Unofficial, exploratory hacking */
4116 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4118 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4119 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4120 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4121 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4122 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4123 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4124 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4125 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4126 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4127 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4128 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4129 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4130 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4131 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4132 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4133 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4135 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4136 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4138 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4139 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4140 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4141 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4142 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4143 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4144 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4145 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4146 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4147 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4148 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4149 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4150 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4151 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4152 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4153 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4154 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4155 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4156 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4157 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4158 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4159 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4160 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4161 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4162 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4163 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4164 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4165 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4166 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4167 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4168 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4169 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4170 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4174 # define DEBUG_p_TEST DEBUG_p_TEST_
4175 # define DEBUG_s_TEST DEBUG_s_TEST_
4176 # define DEBUG_l_TEST DEBUG_l_TEST_
4177 # define DEBUG_t_TEST DEBUG_t_TEST_
4178 # define DEBUG_o_TEST DEBUG_o_TEST_
4179 # define DEBUG_c_TEST DEBUG_c_TEST_
4180 # define DEBUG_P_TEST DEBUG_P_TEST_
4181 # define DEBUG_m_TEST DEBUG_m_TEST_
4182 # define DEBUG_f_TEST DEBUG_f_TEST_
4183 # define DEBUG_r_TEST DEBUG_r_TEST_
4184 # define DEBUG_x_TEST DEBUG_x_TEST_
4185 # define DEBUG_u_TEST DEBUG_u_TEST_
4186 # define DEBUG_U_TEST DEBUG_U_TEST_
4187 # define DEBUG_X_TEST DEBUG_X_TEST_
4188 # define DEBUG_D_TEST DEBUG_D_TEST_
4189 # define DEBUG_S_TEST DEBUG_S_TEST_
4190 # define DEBUG_T_TEST DEBUG_T_TEST_
4191 # define DEBUG_R_TEST DEBUG_R_TEST_
4192 # define DEBUG_J_TEST DEBUG_J_TEST_
4193 # define DEBUG_v_TEST DEBUG_v_TEST_
4194 # define DEBUG_C_TEST DEBUG_C_TEST_
4195 # define DEBUG_A_TEST DEBUG_A_TEST_
4196 # define DEBUG_q_TEST DEBUG_q_TEST_
4197 # define DEBUG_M_TEST DEBUG_M_TEST_
4198 # define DEBUG_B_TEST DEBUG_B_TEST_
4199 # define DEBUG_L_TEST DEBUG_L_TEST_
4200 # define DEBUG_i_TEST DEBUG_i_TEST_
4201 # define DEBUG_y_TEST DEBUG_y_TEST_
4202 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4203 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4204 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4205 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4206 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4208 # define PERL_DEB(a) a
4209 # define PERL_DEB2(a,b) a
4210 # define PERL_DEBUG(a) if (PL_debug) a
4211 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4212 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4213 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4214 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4215 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4216 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4217 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4219 /* Temporarily turn off memory debugging in case the a
4220 * does memory allocation, either directly or indirectly. */
4221 # define DEBUG_m(a) \
4223 if (PERL_GET_INTERP) { \
4225 if (DEBUG_m_TEST) { \
4226 PL_debug &= ~DEBUG_m_FLAG; \
4228 PL_debug |= DEBUG_m_FLAG; \
4233 # define DEBUG__(t, a) \
4235 if (t) STMT_START {a;} STMT_END; \
4238 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4240 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4241 # ifdef PERL_EXT_RE_BUILD
4242 # define DEBUG_r(a) STMT_START {a;} STMT_END
4244 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4245 # endif /* PERL_EXT_RE_BUILD */
4247 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4248 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4249 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4250 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4251 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4252 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4253 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4254 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4255 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4256 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4258 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4259 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4260 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4261 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4262 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4263 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4264 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4265 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4266 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4267 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4268 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4269 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4271 #else /* ! DEBUGGING below */
4273 # define DEBUG_p_TEST (0)
4274 # define DEBUG_s_TEST (0)
4275 # define DEBUG_l_TEST (0)
4276 # define DEBUG_t_TEST (0)
4277 # define DEBUG_o_TEST (0)
4278 # define DEBUG_c_TEST (0)
4279 # define DEBUG_P_TEST (0)
4280 # define DEBUG_m_TEST (0)
4281 # define DEBUG_f_TEST (0)
4282 # define DEBUG_r_TEST (0)
4283 # define DEBUG_x_TEST (0)
4284 # define DEBUG_u_TEST (0)
4285 # define DEBUG_U_TEST (0)
4286 # define DEBUG_X_TEST (0)
4287 # define DEBUG_D_TEST (0)
4288 # define DEBUG_S_TEST (0)
4289 # define DEBUG_T_TEST (0)
4290 # define DEBUG_R_TEST (0)
4291 # define DEBUG_J_TEST (0)
4292 # define DEBUG_v_TEST (0)
4293 # define DEBUG_C_TEST (0)
4294 # define DEBUG_A_TEST (0)
4295 # define DEBUG_q_TEST (0)
4296 # define DEBUG_M_TEST (0)
4297 # define DEBUG_B_TEST (0)
4298 # define DEBUG_L_TEST (0)
4299 # define DEBUG_i_TEST (0)
4300 # define DEBUG_y_TEST (0)
4301 # define DEBUG_Xv_TEST (0)
4302 # define DEBUG_Uv_TEST (0)
4303 # define DEBUG_Pv_TEST (0)
4304 # define DEBUG_Lv_TEST (0)
4305 # define DEBUG_yv_TEST (0)
4307 # define PERL_DEB(a)
4308 # define PERL_DEB2(a,b) b
4309 # define PERL_DEBUG(a)
4337 # define DEBUG_Xv(a)
4338 # define DEBUG_Uv(a)
4339 # define DEBUG_Pv(a)
4340 # define DEBUG_Lv(a)
4341 # define DEBUG_yv(a)
4342 #endif /* DEBUGGING */
4345 #define DEBUG_SCOPE(where) \
4347 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4348 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4349 __FILE__, __LINE__));
4351 /* Keep the old croak based assert for those who want it, and as a fallback if
4352 the platform is so heretically non-ANSI that it can't assert. */
4354 #define Perl_assert(what) PERL_DEB2( \
4355 ((what) ? ((void) 0) : \
4356 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4357 "\", line %d", STRINGIFY(what), __LINE__), \
4358 (void) 0)), ((void)0))
4360 /* assert() gets defined if DEBUGGING.
4361 * If no DEBUGGING, the <assert.h> has not been included. */
4363 # define assert(what) Perl_assert(what)
4366 # define assert_(what) assert(what),
4368 # define assert_(what)
4372 I32 (*uf_val)(pTHX_ IV, SV*);
4373 I32 (*uf_set)(pTHX_ IV, SV*);
4377 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4378 * XS code wanting to be backward compatible can do something
4379 * like the following:
4381 #ifndef PERL_MG_UFUNC
4382 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4385 static PERL_MG_UFUNC(foo_get, index, val)
4395 #ifndef PERL_MG_UFUNC
4396 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4401 /* isfinite and others are here rather than in math.h as C99 stipulates */
4406 # if !defined(WIN32) && !defined(VMS)
4408 char *crypt (const char*, const char*);
4410 # endif /* !WIN32 */
4413 char *getlogin (void);
4415 # endif /* !WIN32 */
4416 #endif /* !__cplusplus */
4418 /* Fixme on VMS. This needs to be a run-time, not build time options */
4419 /* Also rename() is affected by this */
4420 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4421 #define UNLINK unlnk
4422 I32 unlnk (pTHX_ const char*);
4424 #define UNLINK PerlLIO_unlink
4427 /* some versions of glibc are missing the setresuid() proto */
4428 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4429 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4431 /* some versions of glibc are missing the setresgid() proto */
4432 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4433 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4436 #ifndef HAS_SETREUID
4437 # ifdef HAS_SETRESUID
4438 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4439 # define HAS_SETREUID
4442 #ifndef HAS_SETREGID
4443 # ifdef HAS_SETRESGID
4444 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4445 # define HAS_SETREGID
4449 /* Sighandler_t defined in iperlsys.h */
4451 #ifdef HAS_SIGACTION
4452 typedef struct sigaction Sigsave_t;
4454 typedef Sighandler_t Sigsave_t;
4465 # define RUNOPS_DEFAULT Perl_runops_debug
4467 # define RUNOPS_DEFAULT Perl_runops_standard
4470 #if defined(USE_PERLIO)
4471 EXTERN_C void PerlIO_teardown(void);
4472 # ifdef USE_ITHREADS
4473 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4474 # define PERLIO_TERM \
4476 PerlIO_teardown(); \
4477 MUTEX_DESTROY(&PL_perlio_mutex);\
4480 # define PERLIO_INIT
4481 # define PERLIO_TERM PerlIO_teardown()
4484 # define PERLIO_INIT
4485 # define PERLIO_TERM
4489 # ifdef MUTEX_INIT_CALLS_MALLOC
4490 # define MALLOC_INIT \
4492 PL_malloc_mutex = NULL; \
4493 MUTEX_INIT(&PL_malloc_mutex); \
4495 # define MALLOC_TERM \
4497 perl_mutex tmp = PL_malloc_mutex; \
4498 PL_malloc_mutex = NULL; \
4499 MUTEX_DESTROY(&tmp); \
4502 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4503 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4506 # define MALLOC_INIT
4507 # define MALLOC_TERM
4510 #if defined(PERL_IMPLICIT_CONTEXT)
4512 struct perl_memory_debug_header;
4513 struct perl_memory_debug_header {
4515 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4518 struct perl_memory_debug_header *prev;
4519 struct perl_memory_debug_header *next;
4520 # ifdef PERL_DEBUG_READONLY_COW
4525 #elif defined(PERL_DEBUG_READONLY_COW)
4527 struct perl_memory_debug_header;
4528 struct perl_memory_debug_header {
4534 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4536 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4537 (sizeof(struct perl_memory_debug_header) + \
4538 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4539 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4542 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4545 #ifdef PERL_TRACK_MEMPOOL
4546 # ifdef PERL_DEBUG_READONLY_COW
4547 # define INIT_TRACK_MEMPOOL(header, interp) \
4549 (header).interpreter = (interp); \
4550 (header).prev = (header).next = &(header); \
4551 (header).readonly = 0; \
4554 # define INIT_TRACK_MEMPOOL(header, interp) \
4556 (header).interpreter = (interp); \
4557 (header).prev = (header).next = &(header); \
4561 # define INIT_TRACK_MEMPOOL(header, interp)
4564 #ifdef I_MALLOCMALLOC
4565 /* Needed for malloc_size(), malloc_good_size() on some systems */
4566 # include <malloc/malloc.h>
4570 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4572 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4573 # ifdef PERL_TRACK_MEMPOOL
4574 # define Perl_safesysmalloc_size(where) \
4575 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4577 # define Perl_safesysmalloc_size(where) malloc_size(where)
4580 # ifdef HAS_MALLOC_GOOD_SIZE
4581 # ifdef PERL_TRACK_MEMPOOL
4582 # define Perl_malloc_good_size(how_much) \
4583 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4585 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4588 /* Having this as the identity operation makes some code simpler. */
4589 # define Perl_malloc_good_size(how_much) (how_much)
4593 typedef int (*runops_proc_t)(pTHX);
4594 typedef void (*share_proc_t) (pTHX_ SV *sv);
4595 typedef int (*thrhook_proc_t) (pTHX);
4596 typedef OP* (*PPADDR_t[]) (pTHX);
4597 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4598 typedef void (*despatch_signals_proc_t) (pTHX);
4600 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4601 # include <crt_externs.h> /* for the env array */
4602 # define environ (*_NSGetEnviron())
4603 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4604 /* VMS and some other platforms don't use the environ array */
4605 EXTERN_C char **environ; /* environment variables supplied via exec */
4608 #define PERL_PATCHLEVEL_H_IMPLICIT
4609 #include "patchlevel.h"
4610 #undef PERL_PATCHLEVEL_H_IMPLICIT
4612 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4613 STRINGIFY(PERL_VERSION) "." \
4614 STRINGIFY(PERL_SUBVERSION)
4616 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4617 STRINGIFY(PERL_API_VERSION) "." \
4618 STRINGIFY(PERL_API_SUBVERSION)
4622 /* handy constants */
4623 EXTCONST char PL_warn_uninit[]
4624 INIT("Use of uninitialized value%s%s%s");
4625 EXTCONST char PL_warn_uninit_sv[]
4626 INIT("Use of uninitialized value%" SVf "%s%s");
4627 EXTCONST char PL_warn_nosemi[]
4628 INIT("Semicolon seems to be missing");
4629 EXTCONST char PL_warn_reserved[]
4630 INIT("Unquoted string \"%s\" may clash with future reserved word");
4631 EXTCONST char PL_warn_nl[]
4632 INIT("Unsuccessful %s on filename containing newline");
4633 EXTCONST char PL_no_wrongref[]
4634 INIT("Can't use %s ref as %s ref");
4635 /* The core no longer needs this here. If you require the string constant,
4636 please inline a copy into your own code. */
4637 EXTCONST char PL_no_symref[] __attribute__deprecated__
4638 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4639 EXTCONST char PL_no_symref_sv[]
4640 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4642 EXTCONST char PL_no_usym[]
4643 INIT("Can't use an undefined value as %s reference");
4644 EXTCONST char PL_no_aelem[]
4645 INIT("Modification of non-creatable array value attempted, subscript %d");
4646 EXTCONST char PL_no_helem_sv[]
4647 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4648 EXTCONST char PL_no_modify[]
4649 INIT("Modification of a read-only value attempted");
4650 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4651 INIT("Out of memory!\n");
4652 EXTCONST char PL_no_security[]
4653 INIT("Insecure dependency in %s%s");
4654 EXTCONST char PL_no_sock_func[]
4655 INIT("Unsupported socket function \"%s\" called");
4656 EXTCONST char PL_no_dir_func[]
4657 INIT("Unsupported directory function \"%s\" called");
4658 EXTCONST char PL_no_func[]
4659 INIT("The %s function is unimplemented");
4660 EXTCONST char PL_no_myglob[]
4661 INIT("\"%s\" %s %s can't be in a package");
4662 EXTCONST char PL_no_localize_ref[]
4663 INIT("Can't localize through a reference");
4664 EXTCONST char PL_memory_wrap[]
4665 INIT("panic: memory wrap");
4666 EXTCONST char PL_extended_cp_format[]
4667 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4668 " and so is not portable");
4669 EXTCONST char PL_Yes[]
4671 EXTCONST char PL_No[]
4673 EXTCONST char PL_Zero[]
4675 EXTCONST char PL_hexdigit[]
4676 INIT("0123456789abcdef0123456789ABCDEF");
4678 EXTCONST STRLEN PL_WARN_ALL
4680 EXTCONST STRLEN PL_WARN_NONE
4683 /* This is constant on most architectures, a global on OS/2 */
4685 EXTCONST char PL_sh_path[]
4686 INIT(SH_PATH); /* full path of shell */
4690 EXTCONST char PL_cshname[]
4692 # define PL_cshlen (sizeof(CSH "") - 1)
4695 /* These are baked at compile time into any shared perl library.
4696 In future releases this will allow us in main() to sanity test the
4697 library we're linking against. */
4699 EXTCONST U8 PL_revision
4700 INIT(PERL_REVISION);
4701 EXTCONST U8 PL_version
4703 EXTCONST U8 PL_subversion
4704 INIT(PERL_SUBVERSION);
4706 EXTCONST char PL_uuemap[65]
4707 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4709 /* a special string address whose value is "isa", but which perl knows
4710 * to treat as if it were really "DOES" when printing the method name in
4711 * the "Can't call method '%s'" error message */
4712 EXTCONST char PL_isa_DOES[]
4716 EXTCONST char PL_uudmap[256] =
4718 # include "uuudmap.h"
4720 # include "uudmap.h"
4723 EXTCONST char PL_bitcount[256] =
4725 # include "ubitcount.h"
4727 # include "bitcount.h"
4730 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4731 EXTCONST int PL_sig_num[] = { SIG_NUM };
4733 EXTCONST char PL_uudmap[256];
4734 EXTCONST char PL_bitcount[256];
4735 EXTCONST char* const PL_sig_name[];
4736 EXTCONST int PL_sig_num[];
4739 /* fast conversion and case folding tables. The folding tables complement the
4740 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4741 * folds such as outside the range or to multiple characters. */
4746 /* The EBCDIC fold table depends on the code page, and hence is found in
4747 * ebcdic_tables.h */
4749 EXTCONST unsigned char PL_fold[] = {
4750 0, 1, 2, 3, 4, 5, 6, 7,
4751 8, 9, 10, 11, 12, 13, 14, 15,
4752 16, 17, 18, 19, 20, 21, 22, 23,
4753 24, 25, 26, 27, 28, 29, 30, 31,
4754 32, 33, 34, 35, 36, 37, 38, 39,
4755 40, 41, 42, 43, 44, 45, 46, 47,
4756 48, 49, 50, 51, 52, 53, 54, 55,
4757 56, 57, 58, 59, 60, 61, 62, 63,
4758 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4759 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4760 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4761 'x', 'y', 'z', 91, 92, 93, 94, 95,
4762 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4763 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4764 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4765 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4766 128, 129, 130, 131, 132, 133, 134, 135,
4767 136, 137, 138, 139, 140, 141, 142, 143,
4768 144, 145, 146, 147, 148, 149, 150, 151,
4769 152, 153, 154, 155, 156, 157, 158, 159,
4770 160, 161, 162, 163, 164, 165, 166, 167,
4771 168, 169, 170, 171, 172, 173, 174, 175,
4772 176, 177, 178, 179, 180, 181, 182, 183,
4773 184, 185, 186, 187, 188, 189, 190, 191,
4774 192, 193, 194, 195, 196, 197, 198, 199,
4775 200, 201, 202, 203, 204, 205, 206, 207,
4776 208, 209, 210, 211, 212, 213, 214, 215,
4777 216, 217, 218, 219, 220, 221, 222, 223,
4778 224, 225, 226, 227, 228, 229, 230, 231,
4779 232, 233, 234, 235, 236, 237, 238, 239,
4780 240, 241, 242, 243, 244, 245, 246, 247,
4781 248, 249, 250, 251, 252, 253, 254, 255
4784 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4785 0, 1, 2, 3, 4, 5, 6, 7,
4786 8, 9, 10, 11, 12, 13, 14, 15,
4787 16, 17, 18, 19, 20, 21, 22, 23,
4788 24, 25, 26, 27, 28, 29, 30, 31,
4789 32, 33, 34, 35, 36, 37, 38, 39,
4790 40, 41, 42, 43, 44, 45, 46, 47,
4791 48, 49, 50, 51, 52, 53, 54, 55,
4792 56, 57, 58, 59, 60, 61, 62, 63,
4793 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4794 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4795 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4796 'x', 'y', 'z', 91, 92, 93, 94, 95,
4797 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4798 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4799 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4800 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4801 128, 129, 130, 131, 132, 133, 134, 135,
4802 136, 137, 138, 139, 140, 141, 142, 143,
4803 144, 145, 146, 147, 148, 149, 150, 151,
4804 152, 153, 154, 155, 156, 157, 158, 159,
4805 160, 161, 162, 163, 164, 165, 166, 167,
4806 168, 169, 170, 171, 172, 173, 174, 175,
4807 176, 177, 178, 179, 180, 181, 182, 183,
4808 184, 185, 186, 187, 188, 189, 190, 191,
4809 192, 193, 194, 195, 196, 197, 198, 199,
4810 200, 201, 202, 203, 204, 205, 206, 207,
4811 208, 209, 210, 211, 212, 213, 214, 215,
4812 216, 217, 218, 219, 220, 221, 222, 223,
4813 224, 225, 226, 227, 228, 229, 230, 231,
4814 232, 233, 234, 235, 236, 237, 238, 239,
4815 240, 241, 242, 243, 244, 245, 246, 247,
4816 248, 249, 250, 251, 252, 253, 254, 255
4819 EXTCONST unsigned char PL_fold_latin1[] = {
4820 /* Full latin1 complement folding, except for three problematic code points:
4821 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4822 * fold complements outside the Latin1 range, so can't match something
4823 * that isn't in utf8.
4824 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4825 * not one, so can't be represented in this table.
4827 * All have to be specially handled */
4828 0, 1, 2, 3, 4, 5, 6, 7,
4829 8, 9, 10, 11, 12, 13, 14, 15,
4830 16, 17, 18, 19, 20, 21, 22, 23,
4831 24, 25, 26, 27, 28, 29, 30, 31,
4832 32, 33, 34, 35, 36, 37, 38, 39,
4833 40, 41, 42, 43, 44, 45, 46, 47,
4834 48, 49, 50, 51, 52, 53, 54, 55,
4835 56, 57, 58, 59, 60, 61, 62, 63,
4836 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4837 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4838 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4839 'x', 'y', 'z', 91, 92, 93, 94, 95,
4840 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4841 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4842 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4843 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4844 128, 129, 130, 131, 132, 133, 134, 135,
4845 136, 137, 138, 139, 140, 141, 142, 143,
4846 144, 145, 146, 147, 148, 149, 150, 151,
4847 152, 153, 154, 155, 156, 157, 158, 159,
4848 160, 161, 162, 163, 164, 165, 166, 167,
4849 168, 169, 170, 171, 172, 173, 174, 175,
4850 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4851 184, 185, 186, 187, 188, 189, 190, 191,
4852 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4853 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4854 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4855 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4856 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4857 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4858 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4859 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4860 255 /* y with diaeresis */
4863 /* If these tables are accessed through ebcdic, the access will be converted to
4865 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4866 0, 1, 2, 3, 4, 5, 6, 7,
4867 8, 9, 10, 11, 12, 13, 14, 15,
4868 16, 17, 18, 19, 20, 21, 22, 23,
4869 24, 25, 26, 27, 28, 29, 30, 31,
4870 32, 33, 34, 35, 36, 37, 38, 39,
4871 40, 41, 42, 43, 44, 45, 46, 47,
4872 48, 49, 50, 51, 52, 53, 54, 55,
4873 56, 57, 58, 59, 60, 61, 62, 63,
4874 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4875 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4876 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4877 'x', 'y', 'z', 91, 92, 93, 94, 95,
4878 96, 97, 98, 99, 100, 101, 102, 103,
4879 104, 105, 106, 107, 108, 109, 110, 111,
4880 112, 113, 114, 115, 116, 117, 118, 119,
4881 120, 121, 122, 123, 124, 125, 126, 127,
4882 128, 129, 130, 131, 132, 133, 134, 135,
4883 136, 137, 138, 139, 140, 141, 142, 143,
4884 144, 145, 146, 147, 148, 149, 150, 151,
4885 152, 153, 154, 155, 156, 157, 158, 159,