3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
16 * This file is being used for x2p stuff.
17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
18 * Decouple x2p stuff from some of perls more extreme eccentricities.
23 #endif /* PERL_FOR_X2P */
31 /* this is used for functions which take a depth trailing
32 * argument under debugging */
34 #define _pDEPTH ,U32 depth
35 #define _aDEPTH ,depth
41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
48 defined(_STDC_C99) || defined(__c99)
52 /* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
55 /* XXX NOTE that from here --> to <-- the same logic is
56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
60 # if !defined(MULTIPLICITY)
65 #ifdef PERL_GLOBAL_STRUCT_PRIVATE
66 # ifndef PERL_GLOBAL_STRUCT
67 # define PERL_GLOBAL_STRUCT
71 #ifdef PERL_GLOBAL_STRUCT
78 # ifndef PERL_IMPLICIT_CONTEXT
79 # define PERL_IMPLICIT_CONTEXT
83 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
89 #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
96 # include "symbian/symbian_proto.h"
99 /* Any stack-challenged places. The limit varies (and often
100 * is configurable), but using more than a kilobyte of stack
101 * is usually dubious in these systems. */
102 #if defined(__SYMBIAN32__)
103 /* Symbian: need to work around the SDK features. *
104 * On WINS: MS VC5 generates calls to _chkstk, *
105 * if a "large" stack frame is allocated. *
106 * gcc on MARM does not generate calls like these. */
107 # define USE_HEAP_INSTEAD_OF_STACK
110 /* Use the reentrant APIs like localtime_r and getpwent_r */
111 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
112 * XXX KEEP makedef.pl copy of this code in sync */
113 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
114 # define USE_REENTRANT_API
117 /* <--- here ends the logic shared by perl.h and makedef.pl */
119 #undef START_EXTERN_C
123 # define START_EXTERN_C extern "C" {
124 # define END_EXTERN_C }
125 # define EXTERN_C extern "C"
127 # define START_EXTERN_C
128 # define END_EXTERN_C
129 # define EXTERN_C extern
132 /* Fallback definitions in case we don't have definitions from config.h.
133 This should only matter for systems that don't use Configure and
134 haven't been modified to define PERL_STATIC_INLINE yet.
136 #if !defined(PERL_STATIC_INLINE)
137 # ifdef HAS_STATIC_INLINE
138 # define PERL_STATIC_INLINE static inline
140 # define PERL_STATIC_INLINE static
144 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
145 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
146 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
147 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
149 # define PERL_GET_VARS() PL_VarsPtr
153 /* this used to be off by default, now its on, see perlio.h */
154 #define PERLIO_FUNCS_CONST
156 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
158 #ifdef PERL_GLOBAL_STRUCT
159 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
164 #ifdef PERL_IMPLICIT_CONTEXT
165 # ifndef MULTIPLICITY
166 # define MULTIPLICITY
168 # define tTHX PerlInterpreter*
169 # define pTHX tTHX my_perl PERL_UNUSED_DECL
170 # define aTHX my_perl
171 # define aTHXa(a) aTHX = (tTHX)a
172 # ifdef PERL_GLOBAL_STRUCT
173 # define dTHXa(a) dVAR; pTHX = (tTHX)a
175 # define dTHXa(a) pTHX = (tTHX)a
177 # ifdef PERL_GLOBAL_STRUCT
178 # define dTHX dVAR; pTHX = PERL_GET_THX
180 # define dTHX pTHX = PERL_GET_THX
194 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
195 # define PERL_TRACK_MEMPOOL
198 # undef PERL_TRACK_MEMPOOL
202 # define dTHX_DEBUGGING dTHX
204 # define dTHX_DEBUGGING dNOOP
207 #define STATIC static
210 /* Do not use these macros. They were part of PERL_OBJECT, which was an
211 * implementation of multiplicity using C++ objects. They have been left
212 * here solely for the sake of XS code which has incorrectly
215 #define CPERLscope(x) x
216 #define CPERLarg void
219 #define PERL_OBJECT_THIS
220 #define _PERL_OBJECT_THIS
221 #define PERL_OBJECT_THIS_
222 #define CALL_FPTR(fptr) (*fptr)
223 #define MEMBER_TO_FPTR(name) name
224 #endif /* !PERL_CORE */
226 #define CALLRUNOPS PL_runops
228 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
230 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
231 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
232 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
233 (strbeg),(minend),(sv),(data),(flags))
234 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
235 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
236 (strend),(flags),(data))
237 #define CALLREG_INTUIT_STRING(prog) \
238 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
240 #define CALLREGFREE(prog) \
241 Perl_pregfree(aTHX_ (prog))
243 #define CALLREGFREE_PVT(prog) \
244 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
246 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
247 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
249 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
250 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
252 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
253 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
255 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
256 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
258 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
259 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
261 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
262 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
264 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
265 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
267 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
268 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
270 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
271 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
273 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
274 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
276 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
277 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
279 #define CALLREG_NAMED_BUFF_COUNT(rx) \
280 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
282 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
283 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
285 #define CALLREG_PACKAGE(rx) \
286 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
288 #if defined(USE_ITHREADS)
289 #define CALLREGDUPE(prog,param) \
290 Perl_re_dup(aTHX_ (prog),(param))
292 #define CALLREGDUPE_PVT(prog,param) \
293 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
297 /* some compilers impersonate gcc */
298 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
299 # define PERL_IS_GCC 1
302 /* In case Configure was not used (we are using a "canned config"
303 * such as Win32, or a cross-compilation setup, for example) try going
304 * by the gcc major and minor versions. One useful URL is
305 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
306 * but contrary to this information warn_unused_result seems
307 * not to be in gcc 3.3.5, at least. --jhi
308 * Also, when building extensions with an installed perl, this allows
309 * the user to upgrade gcc and get the right attributes, rather than
310 * relying on the list generated at Configure time. --AD
311 * Set these up now otherwise we get confused when some of the <*thread.h>
312 * includes below indirectly pull in <perlio.h> (which needs to know if we
313 * have HASATTRIBUTE_FORMAT).
317 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
318 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
319 # define HASATTRIBUTE_DEPRECATED
321 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
322 # define HASATTRIBUTE_FORMAT
323 # if defined __MINGW32__
324 # define PRINTF_FORMAT_NULL_OK
327 # if __GNUC__ >= 3 /* 3.0 -> */
328 # define HASATTRIBUTE_MALLOC
330 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
331 # define HASATTRIBUTE_NONNULL
333 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
334 # define HASATTRIBUTE_NORETURN
336 # if __GNUC__ >= 3 /* gcc 3.0 -> */
337 # define HASATTRIBUTE_PURE
339 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
340 # define HASATTRIBUTE_UNUSED
342 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
343 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
345 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
346 # define HASATTRIBUTE_WARN_UNUSED_RESULT
348 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
349 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
350 # define HASATTRIBUTE_ALWAYS_INLINE
353 #endif /* #ifndef PERL_MICRO */
355 #ifdef HASATTRIBUTE_DEPRECATED
356 # define __attribute__deprecated__ __attribute__((deprecated))
358 #ifdef HASATTRIBUTE_FORMAT
359 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
361 #ifdef HASATTRIBUTE_MALLOC
362 # define __attribute__malloc__ __attribute__((__malloc__))
364 #ifdef HASATTRIBUTE_NONNULL
365 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
367 #ifdef HASATTRIBUTE_NORETURN
368 # define __attribute__noreturn__ __attribute__((noreturn))
370 #ifdef HASATTRIBUTE_PURE
371 # define __attribute__pure__ __attribute__((pure))
373 #ifdef HASATTRIBUTE_UNUSED
374 # define __attribute__unused__ __attribute__((unused))
376 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
377 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
379 #ifdef HASATTRIBUTE_ALWAYS_INLINE
380 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
381 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
382 # define __attribute__always_inline__ __attribute__((always_inline))
386 /* If we haven't defined the attributes yet, define them to blank. */
387 #ifndef __attribute__deprecated__
388 # define __attribute__deprecated__
390 #ifndef __attribute__format__
391 # define __attribute__format__(x,y,z)
393 #ifndef __attribute__malloc__
394 # define __attribute__malloc__
396 #ifndef __attribute__nonnull__
397 # define __attribute__nonnull__(a)
399 #ifndef __attribute__noreturn__
400 # define __attribute__noreturn__
402 #ifndef __attribute__pure__
403 # define __attribute__pure__
405 #ifndef __attribute__unused__
406 # define __attribute__unused__
408 #ifndef __attribute__warn_unused_result__
409 # define __attribute__warn_unused_result__
411 #ifndef __attribute__always_inline__
412 # define __attribute__always_inline__
415 /* Some OS warn on NULL format to printf */
416 #ifdef PRINTF_FORMAT_NULL_OK
417 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
419 # define __attribute__format__null_ok__(x,y,z)
423 * Because of backward compatibility reasons the PERL_UNUSED_DECL
424 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
426 * Note that there are C compilers such as MetroWerks CodeWarrior
427 * which do not have an "inlined" way (like the gcc __attribute__) of
428 * marking unused variables (they need e.g. a #pragma) and therefore
429 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
430 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
434 #ifndef PERL_UNUSED_DECL
435 # define PERL_UNUSED_DECL __attribute__unused__
439 * for silencing unused variables that are actually used most of the time,
440 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
441 * or variables/arguments that are used only in certain configurations.
443 #ifndef PERL_UNUSED_ARG
444 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
446 #ifndef PERL_UNUSED_VAR
447 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
450 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
451 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
453 # define PERL_UNUSED_CONTEXT
456 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
457 * g++ allows them but seems to have problems with them
458 * (insane errors ensue).
459 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
461 #if defined(PERL_GCC_PEDANTIC) || \
462 (defined(__GNUC__) && defined(__cplusplus) && \
463 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
464 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
465 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
469 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
470 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
472 * The main reason for this is that the combination of gcc -Wunused-result
473 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
474 * be silenced with casting to void. This causes trouble when the system
475 * header files use the attribute.
477 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
478 * is there for a good reason: you might lose success/failure information,
479 * or leak resources, or changes in resources.
481 * But sometimes you just want to ignore the return value, e.g. on
482 * codepaths soon ending up in abort, or in "best effort" attempts,
483 * or in situations where there is no good way to handle failures.
485 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
486 * another possibility is that you can capture the return value
487 * and use PERL_UNUSED_VAR on that.
489 * The __typeof__() is used instead of typeof() since typeof() is not
490 * available under strict C89, and because of compilers masquerading
491 * as gcc (clang and icc), we want exactly the gcc extension
492 * __typeof__ and nothing else.
494 #ifndef PERL_UNUSED_RESULT
495 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
496 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
498 # define PERL_UNUSED_RESULT(v) ((void)(v))
502 #if defined(_MSC_VER)
503 /* XXX older MSVC versions have a smallish macro buffer */
504 #define PERL_SMALL_MACRO_BUFFER
507 /* on gcc (and clang), specify that a warning should be temporarily
510 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
512 * GCC_DIAG_RESTORE_DECL;
514 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
516 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
517 * clang only pretends to be GCC 4.2, but still supports push/pop.
519 * Note on usage: all macros must be used at a place where a declaration
520 * or statement can occur, i.e., not in the middle of an expression.
521 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
522 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
523 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
524 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
525 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
526 * and behave syntactically as statements (like NOOP).
530 #if defined(__clang__) || defined(__clang) || \
531 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
532 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
533 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
534 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
535 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
536 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
538 # define GCC_DIAG_IGNORE(w)
539 # define GCC_DIAG_RESTORE
541 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
542 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
543 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
544 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
545 /* for clang specific pragmas */
546 #if defined(__clang__) || defined(__clang)
547 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
548 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
549 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
550 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
552 # define CLANG_DIAG_IGNORE(w)
553 # define CLANG_DIAG_RESTORE
555 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
556 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
557 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
558 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
560 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
561 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
562 __pragma(warning(disable : x))
563 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
565 # define MSVC_DIAG_IGNORE(x)
566 # define MSVC_DIAG_RESTORE
568 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
569 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
570 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
571 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
573 #define NOOP /*EMPTY*/(void)0
574 #define dNOOP struct Perl___notused_struct
577 /* Don't bother defining tTHX ; using it outside
578 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
584 # define aTHXa(a) NOOP
585 # define dTHXa(a) dNOOP
603 /* these are only defined for compatibility; should not be used internally */
604 #if !defined(pTHXo) && !defined(PERL_CORE)
606 # define pTHXo_ pTHX_
608 # define aTHXo_ aTHX_
610 # define dTHXoa(x) dTHXa(x)
614 # define pTHXx PerlInterpreter *my_perl
615 # define pTHXx_ pTHXx,
616 # define aTHXx my_perl
617 # define aTHXx_ aTHXx,
621 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
622 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
623 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
624 #ifdef PERL_IMPLICIT_SYS
625 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
626 # define dTHXs dVAR; dTHX
631 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
638 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
639 # ifndef PERL_USE_GCC_BRACE_GROUPS
640 # define PERL_USE_GCC_BRACE_GROUPS
645 =head1 Miscellaneous Functions
647 =for apidoc AmnUu|void|STMT_START
649 STMT_START { statements; } STMT_END;
651 can be used as a single statement, as in
653 if (x) STMT_START { ... } STMT_END; else ...
655 These are often used in macro definitions. Note that you can't return a value
658 =for apidoc AmnUhu|void|STMT_END
662 Trying to select a version that gives no warnings...
664 #if !(defined(STMT_START) && defined(STMT_END))
665 # ifdef PERL_USE_GCC_BRACE_GROUPS
666 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
669 # define STMT_START do
670 # define STMT_END while (0)
674 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
675 # define BYTEORDER 0x1234
678 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
685 * The following contortions are brought to you on behalf of all the
686 * standards, semi-standards, de facto standards, not-so-de-facto standards
687 * of the world, as well as all the other botches anyone ever thought of.
688 * The basic theory is that if we work hard enough here, the rest of the
689 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
692 /* define this once if either system, instead of cluttering up the src */
693 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
697 /* These exist only for back-compat with XS modules. */
700 #define CAN_PROTOTYPE
707 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
708 * you get a perl without taint support, but doubtlessly with a lesser
709 * degree of support. Do not do so unless you know exactly what it means
710 * technically, have a good reason to do so, and know exactly how the
711 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
712 * a potential security risk due to flat out ignoring the security-relevant
713 * taint flags. This being said, a perl without taint support compiled in
714 * has marginal run-time performance benefits.
715 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
716 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
717 * silently ignores -t/-T instead of throwing an exception.
719 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
720 * voids your nonexistent warranty!
722 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
723 # define NO_TAINT_SUPPORT 1
726 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
727 * operations into no-ops for a very modest speed-up. Enable only if you
728 * know what you're doing: tests and CPAN modules' tests are bound to fail.
730 #ifdef NO_TAINT_SUPPORT
732 # define TAINT_NOT NOOP
733 # define TAINT_IF(c) NOOP
734 # define TAINT_ENV() NOOP
735 # define TAINT_PROPER(s) NOOP
736 # define TAINT_set(s) NOOP
738 # define TAINTING_get 0
739 # define TAINTING_set(s) NOOP
740 # define TAINT_WARN_get 0
741 # define TAINT_WARN_set(s) NOOP
743 /* Set to tainted if we are running under tainting mode */
744 # define TAINT (PL_tainted = PL_tainting)
746 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
747 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
748 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
749 /* croak or warn if tainting */
750 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
751 taint_proper(NULL, s); \
753 # define TAINT_set(s) (PL_tainted = (s))
754 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
755 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
756 # define TAINTING_set(s) (PL_tainting = (s))
757 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
761 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
764 /* flags used internally only within pp_subst and pp_substcont */
766 # define SUBST_TAINT_STR 1 /* string tainted */
767 # define SUBST_TAINT_PAT 2 /* pattern tainted */
768 # define SUBST_TAINT_REPL 4 /* replacement tainted */
769 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
770 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
773 /* XXX All process group stuff is handled in pp_sys.c. Should these
774 defines move there? If so, I could simplify this a lot. --AD 9/96.
776 /* Process group stuff changed from traditional BSD to POSIX.
777 perlfunc.pod documents the traditional BSD-style syntax, so we'll
778 try to preserve that, if possible.
781 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
782 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
783 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
784 #elif defined(HAS_SETPGRP2)
785 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
787 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
788 # define HAS_SETPGRP /* Well, effectively it does . . . */
791 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
792 our life easier :-) so we'll try it.
795 # define BSD_GETPGRP(pid) getpgid((pid))
796 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
797 # define BSD_GETPGRP(pid) getpgrp((pid))
798 #elif defined(HAS_GETPGRP2)
799 # define BSD_GETPGRP(pid) getpgrp2((pid))
801 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
802 # define HAS_GETPGRP /* Well, effectively it does . . . */
805 /* These are not exact synonyms, since setpgrp() and getpgrp() may
806 have different behaviors, but perl.h used to define USE_BSDPGRP
807 (prior to 5.003_05) so some extension might depend on it.
809 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
815 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
816 pthread.h must be included before all other header files.
818 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
819 # include <pthread.h>
822 #include <sys/types.h>
824 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
825 which is included from stdarg.h. Bad definition not present in SD 2008
826 SDK headers. wince.h is not yet included, so we cant fix this from there
827 since by then MB_CUR_MAX will be defined from stdlib.h.
828 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
829 since cewchar.h can't be included this early */
830 #if defined(UNDER_CE) && (_MSC_VER < 1300)
831 # define MB_CUR_MAX 1uL
848 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
861 # include <xlocale.h>
864 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
865 * functions are available, or 2) just the setlocale() function. This logic is
866 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
868 #if ! defined(NO_LOCALE)
870 # if ! defined(NO_POSIX_2008_LOCALE) \
871 && defined(HAS_NEWLOCALE) \
872 && defined(HAS_USELOCALE) \
873 && defined(HAS_DUPLOCALE) \
874 && defined(HAS_FREELOCALE) \
875 && defined(LC_ALL_MASK)
877 /* For simplicity, the code is written to assume that any platform advanced
878 * enough to have the Posix 2008 locale functions has LC_ALL. The final
879 * test above makes sure that assumption is valid */
881 # define HAS_POSIX_2008_LOCALE
883 # elif defined(HAS_SETLOCALE)
889 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
891 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
892 && defined(HAS_STRXFRM)
893 # define USE_LOCALE_COLLATE
895 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
896 # define USE_LOCALE_CTYPE
898 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
899 # define USE_LOCALE_NUMERIC
901 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
902 # define USE_LOCALE_MESSAGES
904 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
905 # define USE_LOCALE_MONETARY
907 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
908 # define USE_LOCALE_TIME
910 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
911 # define USE_LOCALE_ADDRESS
913 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
914 # define USE_LOCALE_IDENTIFICATION
916 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
917 # define USE_LOCALE_MEASUREMENT
919 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
920 # define USE_LOCALE_PAPER
922 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
923 # define USE_LOCALE_TELEPHONE
925 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
926 # define USE_LOCALE_SYNTAX
928 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
929 # define USE_LOCALE_TOD
932 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
933 * changes here MUST also be made there */
935 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
936 # define USE_POSIX_2008_LOCALE
937 # ifndef USE_THREAD_SAFE_LOCALE
938 # define USE_THREAD_SAFE_LOCALE
941 * -DUSE_THREAD_SAFE_LOCALE, will do so even
942 * on unthreaded builds */
943 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
944 && ( defined(HAS_POSIX_2008_LOCALE) \
945 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
946 && ! defined(NO_THREAD_SAFE_LOCALE)
947 # ifndef USE_THREAD_SAFE_LOCALE
948 # define USE_THREAD_SAFE_LOCALE
950 # ifdef HAS_POSIX_2008_LOCALE
951 # define USE_POSIX_2008_LOCALE
956 /* Microsoft documentation reads in the change log for VS 2015:
957 * "The localeconv function declared in locale.h now works correctly when
958 * per-thread locale is enabled. In previous versions of the library, this
959 * function would return the lconv data for the global locale, not the
962 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
963 # define TS_W32_BROKEN_LOCALECONV
969 # ifdef PARAM_NEEDS_TYPES
970 # include <sys/types.h>
972 # include <sys/param.h>
975 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
976 value something like 199306. This may be useful if no more-specific
977 feature test is available.
985 /* Use all the "standard" definitions */
988 /* If this causes problems, set i_unistd=undef in the hint file. */
990 # if defined(__amigaos4__)
992 # include <netinet/in.h>
996 # if defined(__amigaos4__)
997 /* Under AmigaOS 4 newlib.library provides an environ. However using
998 * it doesn't give us enough control over inheritance of variables by
999 * subshells etc. so replace with custom version based on abc-shell
1001 extern char **myenviron;
1003 # define environ myenviron
1009 # include <sys/wait.h>
1012 #ifdef __SYMBIAN32__
1013 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
1016 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1017 EXTERN_C int syscall(int, ...);
1020 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1021 EXTERN_C int usleep(unsigned int);
1024 /* macros for correct constant construction. These are in C99 <stdint.h>
1025 * (so they will not be available in strict C89 mode), but they are nice, so
1026 * let's define them if necessary. */
1029 # define UINT16_C(x) ((U16_TYPE)x##U)
1031 # define UINT16_C(x) ((U16_TYPE)x##UL)
1037 # define UINT32_C(x) ((U32_TYPE)x##U)
1039 # define UINT32_C(x) ((U32_TYPE)x##UL)
1044 typedef intmax_t PERL_INTMAX_T;
1045 typedef uintmax_t PERL_UINTMAX_T;
1048 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1049 * actually mean what it has always been documented to mean (see RT #119753)
1050 * and is explicitly turned off outside of core with dire warnings about
1051 * removing the undef. */
1053 #if defined(QUADKIND)
1054 # undef PeRl_INT64_C
1055 # undef PeRl_UINT64_C
1056 /* Prefer the native integer types (int and long) over long long
1057 * (which is not C89) and Win32-specific __int64. */
1058 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1059 # define PeRl_INT64_C(c) (c)
1060 # define PeRl_UINT64_C(c) CAT2(c,U)
1062 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1063 # define PeRl_INT64_C(c) CAT2(c,L)
1064 # define PeRl_UINT64_C(c) CAT2(c,UL)
1066 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1067 # define PeRl_INT64_C(c) CAT2(c,LL)
1068 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1070 # if QUADKIND == QUAD_IS___INT64
1071 # define PeRl_INT64_C(c) CAT2(c,I64)
1072 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1074 # ifndef PeRl_INT64_C
1075 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1076 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1078 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1079 * not fly with C89-pedantic gcc, so let's undefine them first so that
1080 * we can redefine them with our native integer preferring versions. */
1081 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1086 # define INT64_C(c) PeRl_INT64_C(c)
1089 # define UINT64_C(c) PeRl_UINT64_C(c)
1093 typedef I64TYPE PERL_INTMAX_T;
1094 typedef U64TYPE PERL_UINTMAX_T;
1097 # define INTMAX_C(c) INT64_C(c)
1100 # define UINTMAX_C(c) UINT64_C(c)
1103 #else /* below QUADKIND is undefined */
1105 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1107 typedef I32TYPE PERL_INTMAX_T;
1108 typedef U32TYPE PERL_UINTMAX_T;
1111 # define INTMAX_C(c) INT32_C(c)
1114 # define UINTMAX_C(c) UINT32_C(c)
1117 #endif /* no QUADKIND */
1121 /* byte-swapping functions for big-/little-endian conversion */
1122 # define _swab_16_(x) ((U16)( \
1123 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1124 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1126 # define _swab_32_(x) ((U32)( \
1127 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1128 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1129 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1130 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1133 # define _swab_64_(x) ((U64)( \
1134 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1135 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1136 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1137 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1138 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1139 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1140 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1141 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1144 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1145 at least on FreeBSD. YMMV, so experiment. */
1146 #ifndef PERL_ARENA_SIZE
1147 #define PERL_ARENA_SIZE 4080
1150 /* Maximum level of recursion */
1151 #ifndef PERL_SUB_DEPTH_WARN
1152 #define PERL_SUB_DEPTH_WARN 100
1155 #endif /* PERL_CORE */
1157 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1158 * It determines the size of local arrays in S_maybe_multiconcat() and
1161 #define PERL_MULTICONCAT_MAXARG 64
1163 /* The indexes of fields of a multiconcat aux struct.
1164 * The fixed fields are followed by nargs+1 const segment lengths,
1165 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1168 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1169 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1170 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1171 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1172 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1173 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1174 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1175 multiconcat header */
1177 /* We no longer default to creating a new SV for GvSV.
1178 Do this before embed. */
1179 #ifndef PERL_CREATE_GVSV
1180 # ifndef PERL_DONT_CREATE_GVSV
1181 # define PERL_DONT_CREATE_GVSV
1185 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1186 #define PERL_USES_PL_PIDSTATUS
1189 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
1190 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1193 #define MEM_SIZE Size_t
1195 /* Round all values passed to malloc up, by default to a multiple of
1198 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1199 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1202 /* sv_grow() will expand strings by at least a certain percentage of
1203 the previously *used* length to avoid excessive calls to realloc().
1204 The default is 25% of the current length.
1206 #ifndef PERL_STRLEN_EXPAND_SHIFT
1207 # define PERL_STRLEN_EXPAND_SHIFT 2
1210 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1211 * onwards) when building Socket.xs, but we can just use a different definition
1212 * for STRUCT_OFFSET instead. */
1213 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1214 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1216 # include <stddef.h>
1217 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1220 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1221 * in C89, but apparently there are platforms where it doesn't exist. See
1222 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1224 #ifdef PERL_GCC_PEDANTIC
1225 # undef HAS_PTRDIFF_T
1228 #ifdef HAS_PTRDIFF_T
1229 # define Ptrdiff_t ptrdiff_t
1231 # define Ptrdiff_t SSize_t
1234 #ifndef __SYMBIAN32__
1235 # include <string.h>
1238 /* This comes after <stdlib.h> so we don't try to change the standard
1239 * library prototypes; we'll use our own in proto.h instead. */
1242 # ifdef PERL_POLLUTE_MALLOC
1243 # ifndef PERL_EXTMALLOC_DEF
1244 # define Perl_malloc malloc
1245 # define Perl_calloc calloc
1246 # define Perl_realloc realloc
1247 # define Perl_mfree free
1250 # define EMBEDMYMALLOC /* for compatibility */
1253 # define safemalloc Perl_malloc
1254 # define safecalloc Perl_calloc
1255 # define saferealloc Perl_realloc
1256 # define safefree Perl_mfree
1257 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1258 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1261 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1262 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1263 # define panic_write2(s) write(2, s, strlen(s))
1264 # define CHECK_MALLOC_TAINT(newval) \
1265 CHECK_MALLOC_TOO_LATE_FOR_( \
1267 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1269 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1270 if (doing_taint(argc,argv,env)) { \
1271 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1273 #else /* MYMALLOC */
1274 # define safemalloc safesysmalloc
1275 # define safecalloc safesyscalloc
1276 # define saferealloc safesysrealloc
1277 # define safefree safesysfree
1278 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1279 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1280 # define MALLOC_CHECK_TAINT(argc,argv,env)
1281 #endif /* MYMALLOC */
1283 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1284 #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)
1285 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1286 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1287 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1290 # define memzero(d,l) memset(d,0,l)
1294 # include <netinet/in.h>
1298 # include <arpa/inet.h>
1302 # include <sys/stat.h>
1305 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1306 This definition should ideally go into win32/win32.h, but S_IFIFO is
1307 used later here in perl.h before win32/win32.h is being included. */
1308 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1309 # define S_IFIFO _S_IFIFO
1312 /* The stat macros for Unisoft System V/88 (and derivatives
1313 like UTekV) are broken, sometimes giving false positives. Undefine
1314 them here and let the code below set them to proper values.
1316 The ghs macro stands for GreenHills Software C-1.8.5 which
1317 is the C compiler for sysV88 and the various derivatives.
1318 This header file bug is corrected in gcc-2.5.8 and later versions.
1319 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1321 #if defined(m88k) && defined(ghs)
1333 # ifdef I_SYS_TIME_KERNEL
1336 # include <sys/time.h>
1337 # ifdef I_SYS_TIME_KERNEL
1342 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1343 # include <sys/times.h>
1348 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1349 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1352 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1353 # include <sys/socket.h>
1354 # if defined(USE_SOCKS) && defined(I_SOCKS)
1355 # if !defined(INCLUDE_PROTOTYPES)
1356 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1357 # define PERL_SOCKS_NEED_PROTOTYPES
1360 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1361 # undef INCLUDE_PROTOTYPES
1362 # undef PERL_SOCKS_NEED_PROTOTYPES
1373 # include <net/errno.h>
1378 /* sockatmark() is so new (2001) that many places might have it hidden
1379 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1380 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1381 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1382 # if defined(__THROW) && defined(__GLIBC__)
1383 int sockatmark(int) __THROW;
1385 int sockatmark(int);
1389 #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. */
1390 EXTERN_C int fchdir(int);
1391 EXTERN_C int flock(int, int);
1392 EXTERN_C int fseeko(FILE *, off_t, int);
1393 EXTERN_C off_t ftello(FILE *);
1396 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1397 EXTERN_C char *crypt(const char *, const char *);
1400 #if defined(__cplusplus) && defined(__CYGWIN__)
1401 EXTERN_C char *crypt(const char *, const char *);
1407 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1409 Set C<errno>, and on VMS set C<vaxc$errno>.
1411 =for apidoc mn|void|dSAVEDERRNO
1413 Declare variables needed to save C<errno> and any operating system
1414 specific error number.
1416 =for apidoc mn|void|dSAVE_ERRNO
1418 Declare variables needed to save C<errno> and any operating system
1419 specific error number, and save them for optional later restoration
1420 by C<RESTORE_ERRNO>.
1422 =for apidoc mn|void|SAVE_ERRNO
1424 Save C<errno> and any operating system specific error number for
1425 optional later restoration by C<RESTORE_ERRNO>. Requires
1426 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1428 =for apidoc mn|void|RESTORE_ERRNO
1430 Restore C<errno> and any operating system specific error number that
1431 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1437 # undef SETERRNO /* SOCKS might have defined this */
1441 # define SETERRNO(errcode,vmserrcode) \
1443 set_errno(errcode); \
1444 set_vaxc_errno(vmserrcode); \
1446 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1447 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1448 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1449 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1451 # define LIB_INVARG LIB$_INVARG
1452 # define RMS_DIR RMS$_DIR
1453 # define RMS_FAC RMS$_FAC
1454 # define RMS_FEX RMS$_FEX
1455 # define RMS_FNF RMS$_FNF
1456 # define RMS_IFI RMS$_IFI
1457 # define RMS_ISI RMS$_ISI
1458 # define RMS_PRV RMS$_PRV
1459 # define SS_ACCVIO SS$_ACCVIO
1460 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1461 # define SS_IVCHAN SS$_IVCHAN
1462 # define SS_NORMAL SS$_NORMAL
1463 # define SS_NOPRIV SS$_NOPRIV
1464 # define SS_BUFFEROVF SS$_BUFFEROVF
1466 # define LIB_INVARG 0
1474 # define SS_ACCVIO 0
1475 # define SS_DEVOFFLINE 0
1476 # define SS_IVCHAN 0
1477 # define SS_NORMAL 0
1478 # define SS_NOPRIV 0
1479 # define SS_BUFFEROVF 0
1483 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1484 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1485 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1486 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1490 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1491 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1492 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1493 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1497 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1501 # define dSAVEDERRNO int saved_errno
1502 # define dSAVE_ERRNO int saved_errno = errno
1503 # define SAVE_ERRNO (saved_errno = errno)
1504 # define RESTORE_ERRNO (errno = saved_errno)
1508 =head1 Warning and Dieing
1510 =for apidoc Amn|SV *|ERRSV
1512 Returns the SV for C<$@>, creating it if needed.
1514 =for apidoc Am|void|CLEAR_ERRSV
1516 Clear the contents of C<$@>, setting it to the empty string.
1518 This replaces any read-only SV with a fresh SV and removes any magic.
1520 =for apidoc Am|void|SANE_ERRSV
1522 Clean up ERRSV so we can safely set it.
1524 This replaces any read-only SV with a fresh writable copy and removes
1530 #define ERRSV GvSVn(PL_errgv)
1532 /* contains inlined gv_add_by_type */
1533 #define CLEAR_ERRSV() STMT_START { \
1534 SV ** const svp = &GvSV(PL_errgv); \
1536 *svp = newSVpvs(""); \
1537 } else if (SvREADONLY(*svp)) { \
1538 SvREFCNT_dec_NN(*svp); \
1539 *svp = newSVpvs(""); \
1541 SV *const errsv = *svp; \
1543 SvPOK_only(errsv); \
1544 if (SvMAGICAL(errsv)) { \
1550 /* contains inlined gv_add_by_type */
1551 #define SANE_ERRSV() STMT_START { \
1552 SV ** const svp = &GvSV(PL_errgv); \
1554 *svp = newSVpvs(""); \
1555 } else if (SvREADONLY(*svp)) { \
1556 SV *dupsv = newSVsv(*svp); \
1557 SvREFCNT_dec_NN(*svp); \
1560 SV *const errsv = *svp; \
1561 if (SvMAGICAL(errsv)) { \
1569 # define DEFSV (0 + GvSVn(PL_defgv))
1570 # define DEFSV_set(sv) \
1571 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1572 # define SAVE_DEFSV \
1574 save_gp(PL_defgv, 0), \
1575 GvINTRO_off(PL_defgv), \
1576 SAVEGENERICSV(GvSV(PL_defgv)), \
1577 GvSV(PL_defgv) = NULL \
1580 # define DEFSV GvSVn(PL_defgv)
1581 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1582 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1586 extern int errno; /* ANSI allows errno to be an lvalue expr.
1587 * For example in multithreaded environments
1588 * something like this might happen:
1589 * extern int *_errno(void);
1590 * #define errno (*_errno()) */
1593 #define UNKNOWN_ERRNO_MSG "(unknown)"
1596 #define Strerror(e) strerror((e), vaxc$errno)
1598 #define Strerror(e) strerror(e)
1603 # include <sys/ioctl.h>
1607 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1608 # ifdef HAS_SOCKETPAIR
1609 # undef HAS_SOCKETPAIR
1616 #ifndef HAS_SOCKETPAIR
1618 # define socketpair Perl_my_socketpair
1623 # define htoni htons
1624 # define ntohi ntohs
1626 # define htoni htonl
1627 # define ntohi ntohl
1630 /* Configure already sets Direntry_t */
1631 #if defined(I_DIRENT)
1632 # include <dirent.h>
1633 #elif defined(I_SYS_NDIR)
1634 # include <sys/ndir.h>
1635 #elif defined(I_SYS_DIR)
1636 # include <sys/dir.h>
1640 * The following gobbledygook brought to you on behalf of __STDC__.
1641 * (I could just use #ifndef __STDC__, but this is more bulletproof
1642 * in the face of half-implementations.)
1645 #if defined(I_SYSMODE)
1646 #include <sys/mode.h>
1651 # define S_IFMT _S_IFMT
1653 # define S_IFMT 0170000
1658 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1662 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1667 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1669 # define S_ISBLK(m) (0)
1674 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1679 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1681 # define S_ISFIFO(m) (0)
1687 # define S_ISLNK(m) _S_ISLNK(m)
1688 # elif defined(_S_IFLNK)
1689 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1690 # elif defined(S_IFLNK)
1691 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1693 # define S_ISLNK(m) (0)
1699 # define S_ISSOCK(m) _S_ISSOCK(m)
1700 # elif defined(_S_IFSOCK)
1701 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1702 # elif defined(S_IFSOCK)
1703 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1705 # define S_ISSOCK(m) (0)
1711 # define S_IRUSR S_IREAD
1712 # define S_IWUSR S_IWRITE
1713 # define S_IXUSR S_IEXEC
1715 # define S_IRUSR 0400
1716 # define S_IWUSR 0200
1717 # define S_IXUSR 0100
1723 # define S_IRGRP (S_IRUSR>>3)
1724 # define S_IWGRP (S_IWUSR>>3)
1725 # define S_IXGRP (S_IXUSR>>3)
1727 # define S_IRGRP 0040
1728 # define S_IWGRP 0020
1729 # define S_IXGRP 0010
1735 # define S_IROTH (S_IRUSR>>6)
1736 # define S_IWOTH (S_IWUSR>>6)
1737 # define S_IXOTH (S_IXUSR>>6)
1739 # define S_IROTH 0040
1740 # define S_IWOTH 0020
1741 # define S_IXOTH 0010
1746 # define S_ISUID 04000
1750 # define S_ISGID 02000
1754 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1758 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1762 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1765 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1766 * which would get included through <sys/file.h >, but that is 3000
1767 * lines in the future. --jhi */
1769 #if !defined(S_IREAD) && !defined(__HAIKU__)
1770 # define S_IREAD S_IRUSR
1773 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1774 # define S_IWRITE S_IWUSR
1778 # define S_IEXEC S_IXUSR
1781 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1782 # define SLOPPYDIVIDE
1789 /* This used to be conditionally defined based on whether we had a sprintf()
1790 * that correctly returns the string length (as required by C89), but we no
1791 * longer need that. XS modules can (and do) use this name, so it must remain
1792 * a part of the API that's visible to modules.
1794 =head1 Miscellaneous Functions
1796 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1798 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1803 #define my_sprintf sprintf
1806 * If we have v?snprintf() and the C99 variadic macros, we can just
1807 * use just the v?snprintf(). It is nice to try to trap the buffer
1808 * overflow, however, so if we are DEBUGGING, and we cannot use the
1809 * gcc statement expressions, then use the function wrappers which try
1810 * to trap the overflow. If we can use the gcc statement expressions,
1811 * we can try that even with the version that uses the C99 variadic
1815 /* Note that we do not check against snprintf()/vsnprintf() returning
1816 * negative values because that is non-standard behaviour and we use
1817 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1818 * that should be true only if the snprintf()/vsnprintf() are true
1819 * to the standard. */
1821 #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
1824 # define my_snprintf Perl_my_snprintf
1825 # define PERL_MY_SNPRINTF_GUARDED
1826 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1827 # ifdef PERL_USE_GCC_BRACE_GROUPS
1828 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1829 # define PERL_MY_SNPRINTF_GUARDED
1831 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1834 # define my_snprintf Perl_my_snprintf
1835 # define PERL_MY_SNPRINTF_GUARDED
1838 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1839 * dies if called under USE_QUADMATH. */
1840 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1841 # ifdef PERL_USE_GCC_BRACE_GROUPS
1842 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1843 # define PERL_MY_VSNPRINTF_GUARDED
1845 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1848 # define my_vsnprintf Perl_my_vsnprintf
1849 # define PERL_MY_VSNPRINTF_GUARDED
1852 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1853 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1854 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1855 * completely ignore it: otherwise you cannot know whether your output
1858 * int len = my_sprintf(buf, max, ...);
1859 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1861 * The trick is that in certain platforms [a] the my_sprintf() already
1862 * contains the sanity check, while in certain platforms [b] it needs
1863 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1864 * platforms the POST_GUARD actually does nothing since the check has
1865 * already been done. Watch out for the max being the same in both calls.
1867 * If you actually use the snprintf/vsnprintf return value already,
1868 * you assumedly are checking its validity somehow. But you can
1869 * insert the POST_GUARD() also in that case. */
1871 #ifndef PERL_MY_SNPRINTF_GUARDED
1872 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1874 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1877 #ifndef PERL_MY_VSNPRINTF_GUARDED
1878 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1880 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1884 # define my_strlcat strlcat
1887 #if defined(PERL_CORE) || defined(PERL_EXT)
1889 # define my_memrchr memrchr
1891 # define my_memrchr S_my_memrchr
1896 # define my_strlcpy strlcpy
1900 # define my_strnlen strnlen
1904 The IV type is supposed to be long enough to hold any integral
1906 --Andy Dougherty August 1996
1912 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1913 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1914 # define IV_MAX ((IV)INT64_MAX)
1915 # define IV_MIN ((IV)INT64_MIN)
1916 # define UV_MAX ((UV)UINT64_MAX)
1918 # define UINT64_MIN 0
1920 # define UV_MIN ((UV)UINT64_MIN)
1922 # define IV_MAX PERL_QUAD_MAX
1923 # define IV_MIN PERL_QUAD_MIN
1924 # define UV_MAX PERL_UQUAD_MAX
1925 # define UV_MIN PERL_UQUAD_MIN
1930 # if defined(INT32_MAX) && IVSIZE == 4
1931 # define IV_MAX ((IV)INT32_MAX)
1932 # define IV_MIN ((IV)INT32_MIN)
1933 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1934 # define UV_MAX ((UV)UINT32_MAX)
1936 # define UV_MAX ((UV)4294967295U)
1939 # define UINT32_MIN 0
1941 # define UV_MIN ((UV)UINT32_MIN)
1943 # define IV_MAX PERL_LONG_MAX
1944 # define IV_MIN PERL_LONG_MIN
1945 # define UV_MAX PERL_ULONG_MAX
1946 # define UV_MIN PERL_ULONG_MIN
1957 #if !defined(PERL_CORE)
1958 /* We think that removing this decade-old undef this will cause too much
1959 breakage on CPAN for too little gain. (See RT #119753)
1960 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1966 #define Size_t_MAX (~(Size_t)0)
1967 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1969 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1970 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1972 #ifndef NO_PERL_PRESERVE_IVUV
1973 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1977 * The macros INT2PTR and NUM2PTR are (despite their names)
1978 * bi-directional: they will convert int/float to or from pointers.
1979 * However the conversion to int/float are named explicitly:
1980 * PTR2IV, PTR2UV, PTR2NV.
1982 * For int conversions we do not need two casts if pointers are
1983 * the same size as IV and UV. Otherwise we need an explicit
1984 * cast (PTRV) to avoid compiler warnings.
1986 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1988 # define INT2PTR(any,d) (any)(d)
1989 #elif PTRSIZE == LONGSIZE
1990 # define PTRV unsigned long
1991 # define PTR2ul(p) (unsigned long)(p)
1993 # define PTRV unsigned
1997 # define INT2PTR(any,d) (any)(PTRV)(d)
2001 # define PTR2ul(p) INT2PTR(unsigned long,p)
2004 #define NUM2PTR(any,d) (any)(PTRV)(d)
2005 #define PTR2IV(p) INT2PTR(IV,p)
2006 #define PTR2UV(p) INT2PTR(UV,p)
2007 #define PTR2NV(p) NUM2PTR(NV,p)
2008 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2010 /* According to strict ANSI C89 one cannot freely cast between
2011 * data pointers and function (code) pointers. There are at least
2012 * two ways around this. One (used below) is to do two casts,
2013 * first the other pointer to an (unsigned) integer, and then
2014 * the integer to the other pointer. The other way would be
2015 * to use unions to "overlay" the pointers. For an example of
2016 * the latter technique, see union dirpu in struct xpvio in sv.h.
2017 * The only feasible use is probably temporarily storing
2018 * function pointers in a data pointer (such as a void pointer). */
2020 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2021 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2023 #ifdef USE_LONG_DOUBLE
2024 # if LONG_DOUBLESIZE == DOUBLESIZE
2025 # define LONG_DOUBLE_EQUALS_DOUBLE
2026 # undef USE_LONG_DOUBLE /* Ouch! */
2030 /* The following is all to get LDBL_DIG, in order to pick a nice
2031 default value for printing floating point numbers in Gconvert.
2034 #ifndef HAS_LDBL_DIG
2035 # if LONG_DOUBLESIZE == 10
2036 # define LDBL_DIG 18 /* assume IEEE */
2037 # elif LONG_DOUBLESIZE == 12
2038 # define LDBL_DIG 18 /* gcc? */
2039 # elif LONG_DOUBLESIZE == 16
2040 # define LDBL_DIG 33 /* assume IEEE */
2041 # elif LONG_DOUBLESIZE == DOUBLESIZE
2042 # define LDBL_DIG DBL_DIG /* bummer */
2049 # include <ieeefp.h>
2052 #if defined(__DECC) && defined(__osf__)
2053 /* Also Tru64 cc has broken NaN comparisons. */
2054 # define NAN_COMPARE_BROKEN
2057 # define NAN_COMPARE_BROKEN
2060 #ifdef USE_LONG_DOUBLE
2062 # include <sunmath.h>
2064 # if defined(LDBL_DIG)
2065 # define NV_DIG LDBL_DIG
2066 # ifdef LDBL_MANT_DIG
2067 # define NV_MANT_DIG LDBL_MANT_DIG
2070 # define NV_MIN LDBL_MIN
2073 # define NV_MAX LDBL_MAX
2075 # ifdef LDBL_MIN_EXP
2076 # define NV_MIN_EXP LDBL_MIN_EXP
2078 # ifdef LDBL_MAX_EXP
2079 # define NV_MAX_EXP LDBL_MAX_EXP
2081 # ifdef LDBL_MIN_10_EXP
2082 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2084 # ifdef LDBL_MAX_10_EXP
2085 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2087 # ifdef LDBL_EPSILON
2088 # define NV_EPSILON LDBL_EPSILON
2091 # define NV_MAX LDBL_MAX
2092 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2093 # elif defined(HUGE_VALL)
2094 # define NV_MAX HUGE_VALL
2097 # if defined(HAS_SQRTL)
2098 # define Perl_acos acosl
2099 # define Perl_asin asinl
2100 # define Perl_atan atanl
2101 # define Perl_atan2 atan2l
2102 # define Perl_ceil ceill
2103 # define Perl_cos cosl
2104 # define Perl_cosh coshl
2105 # define Perl_exp expl
2106 /* no Perl_fabs, but there's PERL_ABS */
2107 # define Perl_floor floorl
2108 # define Perl_fmod fmodl
2109 # define Perl_log logl
2110 # define Perl_log10 log10l
2111 # define Perl_pow powl
2112 # define Perl_sin sinl
2113 # define Perl_sinh sinhl
2114 # define Perl_sqrt sqrtl
2115 # define Perl_tan tanl
2116 # define Perl_tanh tanhl
2118 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2121 # define Perl_modf(x,y) modfl(x,y)
2122 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2123 prototype in <math.h> */
2124 # ifndef HAS_MODFL_PROTO
2125 EXTERN_C long double modfl(long double, long double *);
2127 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2128 extern long double Perl_my_modfl(long double x, long double *ip);
2129 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2134 # define Perl_frexp(x,y) frexpl(x,y)
2135 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2136 extern long double Perl_my_frexpl(long double x, int *e);
2137 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2142 # define Perl_ldexp(x, y) ldexpl(x,y)
2143 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2144 # define Perl_ldexp(x,y) scalbnl(x,y)
2148 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2149 # define Perl_isnan(x) isnanl(x)
2150 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2151 # define Perl_isnan(x) isnan(x)
2155 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2156 # define Perl_isinf(x) isinfl(x)
2157 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2158 # define Perl_isinf(x) isinf(x)
2159 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2160 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2163 # ifndef Perl_isfinite
2164 # define Perl_isfinite(x) Perl_isfinitel(x)
2166 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2167 # include <quadmath.h>
2168 # define NV_DIG FLT128_DIG
2169 # define NV_MANT_DIG FLT128_MANT_DIG
2170 # define NV_MIN FLT128_MIN
2171 # define NV_MAX FLT128_MAX
2172 # define NV_MIN_EXP FLT128_MIN_EXP
2173 # define NV_MAX_EXP FLT128_MAX_EXP
2174 # define NV_EPSILON FLT128_EPSILON
2175 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2176 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2177 # define Perl_acos acosq
2178 # define Perl_asin asinq
2179 # define Perl_atan atanq
2180 # define Perl_atan2 atan2q
2181 # define Perl_ceil ceilq
2182 # define Perl_cos cosq
2183 # define Perl_cosh coshq
2184 # define Perl_exp expq
2185 /* no Perl_fabs, but there's PERL_ABS */
2186 # define Perl_floor floorq
2187 # define Perl_fmod fmodq
2188 # define Perl_log logq
2189 # define Perl_log10 log10q
2190 # define Perl_signbit signbitq
2191 # define Perl_pow powq
2192 # define Perl_sin sinq
2193 # define Perl_sinh sinhq
2194 # define Perl_sqrt sqrtq
2195 # define Perl_tan tanq
2196 # define Perl_tanh tanhq
2197 # define Perl_modf(x,y) modfq(x,y)
2198 # define Perl_frexp(x,y) frexpq(x,y)
2199 # define Perl_ldexp(x, y) ldexpq(x,y)
2200 # define Perl_isinf(x) isinfq(x)
2201 # define Perl_isnan(x) isnanq(x)
2202 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2203 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2204 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2205 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2206 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2207 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2208 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2210 # define NV_DIG DBL_DIG
2211 # define NV_MANT_DIG DBL_MANT_DIG
2212 # define NV_MIN DBL_MIN
2213 # define NV_MAX DBL_MAX
2214 # define NV_MIN_EXP DBL_MIN_EXP
2215 # define NV_MAX_EXP DBL_MAX_EXP
2216 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2217 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2218 # define NV_EPSILON DBL_EPSILON
2219 # define NV_MAX DBL_MAX
2220 # define NV_MIN DBL_MIN
2222 /* These math interfaces are C89. */
2223 # define Perl_acos acos
2224 # define Perl_asin asin
2225 # define Perl_atan atan
2226 # define Perl_atan2 atan2
2227 # define Perl_ceil ceil
2228 # define Perl_cos cos
2229 # define Perl_cosh cosh
2230 # define Perl_exp exp
2231 /* no Perl_fabs, but there's PERL_ABS */
2232 # define Perl_floor floor
2233 # define Perl_fmod fmod
2234 # define Perl_log log
2235 # define Perl_log10 log10
2236 # define Perl_pow pow
2237 # define Perl_sin sin
2238 # define Perl_sinh sinh
2239 # define Perl_sqrt sqrt
2240 # define Perl_tan tan
2241 # define Perl_tanh tanh
2243 # define Perl_modf(x,y) modf(x,y)
2244 # define Perl_frexp(x,y) frexp(x,y)
2245 # define Perl_ldexp(x,y) ldexp(x,y)
2249 # define Perl_isnan(x) isnan(x)
2253 # if defined(HAS_ISINF)
2254 # define Perl_isinf(x) isinf(x)
2255 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2256 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2259 # ifndef Perl_isfinite
2260 # ifdef HAS_ISFINITE
2261 # define Perl_isfinite(x) isfinite(x)
2262 # elif defined(HAS_FINITE)
2263 # define Perl_isfinite(x) finite(x)
2268 /* fpclassify(): C99. It is supposed to be a macro that switches on
2269 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2270 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2272 # if defined(FP_INFINITE) && defined(FP_NAN)
2273 # define Perl_fp_class(x) fpclassify(x)
2274 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2275 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2276 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2277 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2278 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2279 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2280 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2281 * actually not the C99 fpclassify, with its own set of return defines. */
2282 # define Perl_fp_class(x) fpclassify(x)
2283 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2284 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2285 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2286 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2287 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2288 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2289 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2290 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2291 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2292 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2294 # undef Perl_fp_class /* Unknown set of defines */
2298 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2299 * are identical to the C99 fpclassify(). */
2300 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2303 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2305 /* oh, and the isnormal macro has a typo in it! */
2307 # define isnormal(x) Perl_fp_class_norm(x)
2309 # if defined(FP_INFINITE) && defined(FP_NAN)
2310 # define Perl_fp_class(x) fp_classify(x)
2311 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2312 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2313 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2314 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2315 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2317 # undef Perl_fp_class /* Unknown set of defines */
2321 /* Feel free to check with me for the SGI manpages, SGI testing,
2322 * etcetera, if you want to try getting this to work with IRIX.
2324 * - Allen <allens@cpan.org> */
2326 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2327 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2328 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2329 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2330 * Define some symbols also as cpp symbols so we can detect them. */
2331 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2332 # define FP_PINF FP_PINF
2333 # define FP_QNAN FP_QNAN
2337 # include <ieeefp.h>
2342 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2343 # define Perl_fp_class(x) fpclassl(x)
2345 # define Perl_fp_class(x) fpclass(x)
2347 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2348 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2349 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2350 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2351 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2352 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2353 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2354 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2355 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2356 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2357 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2358 # elif defined(FP_PINF) && defined(FP_QNAN)
2359 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2360 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2361 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2362 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2363 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2364 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2365 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2366 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2367 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2368 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2370 # undef Perl_fp_class /* Unknown set of defines */
2374 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2375 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2377 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2378 # include <fp_class.h>
2380 # if defined(FP_POS_INF) && defined(FP_QNAN)
2381 # ifdef __sgi /* XXX Configure test instead */
2382 # ifdef USE_LONG_DOUBLE
2383 # define Perl_fp_class(x) fp_class_l(x)
2385 # define Perl_fp_class(x) fp_class_d(x)
2388 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2389 # define Perl_fp_class(x) fp_classl(x)
2391 # define Perl_fp_class(x) fp_class(x)
2394 # if defined(FP_POS_INF) && defined(FP_QNAN)
2395 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2396 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2397 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2398 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2399 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2400 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2401 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2402 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2403 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2404 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2406 # undef Perl_fp_class /* Unknown set of defines */
2411 /* class(), _class(): Legacy: AIX. */
2412 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2414 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2416 # define Perl_fp_class(x) class(x)
2418 # define Perl_fp_class(x) _class(x)
2420 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2421 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2422 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2423 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2424 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2425 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2426 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2427 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2428 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2429 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2430 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2432 # undef Perl_fp_class /* Unknown set of defines */
2437 /* Win32: _fpclass(), _isnan(), _finite(). */
2440 # define Perl_isnan(x) _isnan(x)
2442 # ifndef Perl_isfinite
2443 # define Perl_isfinite(x) _finite(x)
2445 # ifndef Perl_fp_class_snan
2446 /* No simple way to #define Perl_fp_class because _fpclass()
2447 * returns a set of bits. */
2448 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2449 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2450 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2451 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2452 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2453 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2454 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2455 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2456 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2457 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2458 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2459 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2460 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2461 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2462 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2466 #if !defined(Perl_fp_class_inf) && \
2467 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2468 # define Perl_fp_class_inf(x) \
2469 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2472 #if !defined(Perl_fp_class_nan) && \
2473 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2474 # define Perl_fp_class_nan(x) \
2475 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2478 #if !defined(Perl_fp_class_zero) && \
2479 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2480 # define Perl_fp_class_zero(x) \
2481 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2484 #if !defined(Perl_fp_class_norm) && \
2485 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2486 # define Perl_fp_class_norm(x) \
2487 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2490 #if !defined(Perl_fp_class_denorm) && \
2491 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2492 # define Perl_fp_class_denorm(x) \
2493 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2497 # ifdef Perl_fp_class_nan
2498 # define Perl_isnan(x) Perl_fp_class_nan(x)
2499 # elif defined(HAS_UNORDERED)
2500 # define Perl_isnan(x) unordered((x), 0.0)
2502 # define Perl_isnan(x) ((x)!=(x))
2507 # ifdef Perl_fp_class_inf
2508 # define Perl_isinf(x) Perl_fp_class_inf(x)
2512 #ifndef Perl_isfinite
2513 # if defined(HAS_ISFINITE) && !defined(isfinite)
2514 # define Perl_isfinite(x) isfinite((double)(x))
2515 # elif defined(HAS_FINITE)
2516 # define Perl_isfinite(x) finite((double)(x))
2517 # elif defined(Perl_fp_class_finite)
2518 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2520 /* For the infinities the multiplication returns nan,
2521 * for the nan the multiplication also returns nan,
2522 * for everything else (that is, finite) zero should be returned. */
2523 # define Perl_isfinite(x) (((x) * 0) == 0)
2528 # if defined(Perl_isfinite) && defined(Perl_isnan)
2529 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2533 /* We need Perl_isfinitel (ends with ell) (if available) even when
2534 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2536 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2537 /* If isfinite() is a macro and looks like we have C99,
2538 * we assume it's the type-aware C99 isfinite(). */
2539 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2540 # define Perl_isfinitel(x) isfinite(x)
2541 # elif defined(HAS_ISFINITEL)
2542 # define Perl_isfinitel(x) isfinitel(x)
2543 # elif defined(HAS_FINITEL)
2544 # define Perl_isfinitel(x) finitel(x)
2545 # elif defined(HAS_INFL) && defined(HAS_NANL)
2546 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2548 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2552 /* The default is to use Perl's own atof() implementation (in numeric.c).
2553 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2554 * it is however best to use the native implementation of atof.
2555 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2556 * Some good tests to try out with either setting are t/base/num.t,
2557 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2558 * you may need to be using a different function than atof! */
2560 #ifndef USE_PERL_ATOF
2562 # define USE_PERL_ATOF
2565 # if USE_PERL_ATOF == 0
2566 # undef USE_PERL_ATOF
2570 #ifdef USE_PERL_ATOF
2571 # define Perl_atof(s) Perl_my_atof(s)
2572 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2574 # define Perl_atof(s) (NV)atof(s)
2575 # define Perl_atof2(s, n) ((n) = atof(s))
2577 #define my_atof2(a,b) my_atof3(a,b,0)
2580 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2581 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2582 * depending on local options. Until Configure detects this (or at least
2583 * detects whether the "signed" keyword is available) the CHAR ranges
2584 * will not be included. UCHAR functions normally.
2588 #define PERL_UCHAR_MIN ((unsigned char)0)
2589 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2591 #define PERL_USHORT_MIN ((unsigned short)0)
2592 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2594 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2595 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2597 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2598 #define PERL_UINT_MIN ((unsigned int)0)
2600 #define PERL_INT_MAX ((int)INT_MAX)
2601 #define PERL_INT_MIN ((int)INT_MIN)
2603 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2604 #define PERL_ULONG_MIN ((unsigned long)0L)
2606 #define PERL_LONG_MAX ((long)LONG_MAX)
2607 #define PERL_LONG_MIN ((long)LONG_MIN)
2610 # define PERL_UQUAD_MAX (~(UV)0)
2611 # define PERL_UQUAD_MIN ((UV)0)
2612 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2613 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2617 =head1 Numeric functions
2619 =for apidoc AmnUh||PERL_INT_MIN
2620 =for apidoc AmnUh||PERL_LONG_MAX
2621 =for apidoc AmnUh||PERL_LONG_MIN
2622 =for apidoc AmnUh||PERL_QUAD_MAX
2623 =for apidoc AmnUh||PERL_SHORT_MAX
2624 =for apidoc AmnUh||PERL_SHORT_MIN
2625 =for apidoc AmnUh||PERL_UCHAR_MAX
2626 =for apidoc AmnUh||PERL_UCHAR_MIN
2627 =for apidoc AmnUh||PERL_UINT_MAX
2628 =for apidoc AmnUh||PERL_ULONG_MAX
2629 =for apidoc AmnUh||PERL_ULONG_MIN
2630 =for apidoc AmnUh||PERL_UQUAD_MAX
2631 =for apidoc AmnUh||PERL_UQUAD_MIN
2632 =for apidoc AmnUh||PERL_USHORT_MAX
2633 =for apidoc AmnUh||PERL_USHORT_MIN
2634 =for apidoc AmnUh||PERL_QUAD_MIN
2635 =for apidoc AmnU||PERL_INT_MAX
2653 give the largest and smallest number representable in the current
2654 platform in variables of the corresponding types.
2656 For signed types, the smallest representable number is the most negative
2657 number, the one furthest away from zero.
2659 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2660 are available to the C code. But these constants, furnished by Perl,
2661 allow code compiled on earlier compilers to portably have access to the same
2668 typedef MEM_SIZE STRLEN;
2670 typedef struct op OP;
2671 typedef struct cop COP;
2672 typedef struct unop UNOP;
2673 typedef struct unop_aux UNOP_AUX;
2674 typedef struct binop BINOP;
2675 typedef struct listop LISTOP;
2676 typedef struct logop LOGOP;
2677 typedef struct pmop PMOP;
2678 typedef struct svop SVOP;
2679 typedef struct padop PADOP;
2680 typedef struct pvop PVOP;
2681 typedef struct loop LOOP;
2682 typedef struct methop METHOP;
2685 typedef struct opslab OPSLAB;
2686 typedef struct opslot OPSLOT;
2689 typedef struct block_hooks BHK;
2690 typedef struct custom_op XOP;
2692 typedef struct interpreter PerlInterpreter;
2694 /* SGI's <sys/sema.h> has struct sv */
2696 # define STRUCT_SV perl_sv
2698 # define STRUCT_SV sv
2700 typedef struct STRUCT_SV SV;
2701 typedef struct av AV;
2702 typedef struct hv HV;
2703 typedef struct cv CV;
2704 typedef struct p5rx REGEXP;
2705 typedef struct gp GP;
2706 typedef struct gv GV;
2707 typedef struct io IO;
2708 typedef struct context PERL_CONTEXT;
2709 typedef struct block BLOCK;
2711 typedef struct magic MAGIC;
2712 typedef struct xpv XPV;
2713 typedef struct xpviv XPVIV;
2714 typedef struct xpvuv XPVUV;
2715 typedef struct xpvnv XPVNV;
2716 typedef struct xpvmg XPVMG;
2717 typedef struct xpvlv XPVLV;
2718 typedef struct xpvinvlist XINVLIST;
2719 typedef struct xpvav XPVAV;
2720 typedef struct xpvhv XPVHV;
2721 typedef struct xpvgv XPVGV;
2722 typedef struct xpvcv XPVCV;
2723 typedef struct xpvbm XPVBM;
2724 typedef struct xpvfm XPVFM;
2725 typedef struct xpvio XPVIO;
2726 typedef struct mgvtbl MGVTBL;
2727 typedef union any ANY;
2728 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2729 typedef struct ptr_tbl PTR_TBL_t;
2730 typedef struct clone_params CLONE_PARAMS;
2732 /* a pad is currently just an AV; but that might change,
2733 * so hide the type. */
2734 typedef struct padlist PADLIST;
2736 typedef struct padnamelist PADNAMELIST;
2737 typedef struct padname PADNAME;
2739 /* always enable PERL_OP_PARENT */
2740 #if !defined(PERL_OP_PARENT)
2741 # define PERL_OP_PARENT
2744 /* enable PERL_COPY_ON_WRITE by default */
2745 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2746 # define PERL_COPY_ON_WRITE
2749 #ifdef PERL_COPY_ON_WRITE
2750 # define PERL_ANY_COW
2752 # define PERL_SAWAMPERSAND
2755 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2756 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2760 #include "charclass_invlists.h"
2762 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2763 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2764 # define USE_64_BIT_RAWIO /* implicit */
2768 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2769 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2770 * however, because operating systems like to do that themself. */
2773 # define FSEEKSIZE LSEEKSIZE
2775 # define FSEEKSIZE LONGSIZE
2779 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2780 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2781 # define USE_64_BIT_STDIO /* implicit */
2785 #ifdef USE_64_BIT_RAWIO
2788 # define Off_t off64_t
2790 # define LSEEKSIZE 8
2792 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2793 * will trigger defines like the ones below. Some 64-bit environments,
2794 * however, do not. Therefore we have to explicitly mix and match. */
2795 # if defined(USE_OPEN64)
2796 # define open open64
2798 # if defined(USE_LSEEK64)
2799 # define lseek lseek64
2801 # if defined(USE_LLSEEK)
2802 # define lseek llseek
2805 # if defined(USE_STAT64)
2806 # define stat stat64
2808 # if defined(USE_FSTAT64)
2809 # define fstat fstat64
2811 # if defined(USE_LSTAT64)
2812 # define lstat lstat64
2814 # if defined(USE_FLOCK64)
2815 # define flock flock64
2817 # if defined(USE_LOCKF64)
2818 # define lockf lockf64
2820 # if defined(USE_FCNTL64)
2821 # define fcntl fcntl64
2823 # if defined(USE_TRUNCATE64)
2824 # define truncate truncate64
2826 # if defined(USE_FTRUNCATE64)
2827 # define ftruncate ftruncate64
2831 #ifdef USE_64_BIT_STDIO
2832 # ifdef HAS_FPOS64_T
2834 # define Fpos_t fpos64_t
2836 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2837 * will trigger defines like the ones below. Some 64-bit environments,
2838 * however, do not. */
2839 # if defined(USE_FOPEN64)
2840 # define fopen fopen64
2842 # if defined(USE_FSEEK64)
2843 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2845 # if defined(USE_FTELL64)
2846 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2848 # if defined(USE_FSETPOS64)
2849 # define fsetpos fsetpos64
2851 # if defined(USE_FGETPOS64)
2852 # define fgetpos fgetpos64
2854 # if defined(USE_TMPFILE64)
2855 # define tmpfile tmpfile64
2857 # if defined(USE_FREOPEN64)
2858 # define freopen freopen64
2863 # include "iperlsys.h"
2868 # include "os2ish.h"
2870 # include "dosish.h"
2873 # include "vmsish.h"
2874 #elif defined(PLAN9)
2875 # include "./plan9/plan9ish.h"
2876 #elif defined(__VOS__)
2878 # include "./vos/vosish.h"
2880 # include "vos/vosish.h"
2882 #elif defined(__SYMBIAN32__)
2883 # include "symbian/symbianish.h"
2884 #elif defined(__HAIKU__)
2885 # include "haiku/haikuish.h"
2887 # include "unixish.h"
2891 # include "amigaos.h"
2892 # undef FD_CLOEXEC /* a lie in AmigaOS */
2895 /* NSIG logic from Configure --> */
2898 # define NSIG (_NSIG)
2899 # elif defined(SIGMAX)
2900 # define NSIG (SIGMAX+1)
2901 # elif defined(SIG_MAX)
2902 # define NSIG (SIG_MAX+1)
2903 # elif defined(_SIG_MAX)
2904 # define NSIG (_SIG_MAX+1)
2905 # elif defined(MAXSIG)
2906 # define NSIG (MAXSIG+1)
2907 # elif defined(MAX_SIG)
2908 # define NSIG (MAX_SIG+1)
2909 # elif defined(SIGARRAYSIZE)
2910 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2911 # elif defined(_sys_nsig)
2912 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2914 /* Default to some arbitrary number that's big enough to get most
2915 * of the common signals. */
2919 /* <-- NSIG logic from Configure */
2921 #ifndef NO_ENVIRON_ARRAY
2922 # define USE_ENVIRON_ARRAY
2926 /* On some platforms it would be safe to use a read/write mutex with many
2927 * readers possible at the same time. On other platforms, notably IBM ones,
2928 * subsequent getenv calls destroy earlier ones. Those platforms would not
2929 * be able to handle simultaneous getenv calls */
2930 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2931 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2932 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2933 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2935 # define ENV_LOCK NOOP;
2936 # define ENV_UNLOCK NOOP;
2937 # define ENV_INIT NOOP;
2938 # define ENV_TERM NOOP;
2941 /* Some critical sections need to lock both the locale and the environment.
2942 * XXX khw intends to change this to lock both mutexes, but that brings up
2943 * issues of potential deadlock, so should be done at the beginning of a
2944 * development cycle. So for now, it just locks the environment. Note that
2945 * many modern platforms are locale-thread-safe anyway, so locking the locale
2946 * mutex is a no-op anyway */
2947 #define ENV_LOCALE_LOCK ENV_LOCK
2948 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2950 /* And some critical sections care only that no one else is writing either the
2951 * locale nor the environment. XXX Again this is for the future. This can be
2952 * simulated with using COND_WAIT in thread.h */
2953 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2954 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2956 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2957 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2958 * signal handlers. But the perl core itself only fully supports 1-arg
2959 * handlers, so don't enable for now.
2960 * NB: POSIX::sigaction() supports both.
2962 * # define PERL_USE_3ARG_SIGHANDLER
2967 * This is an alias for the OS's siginfo_t, except that where the OS
2968 * doesn't support it, declare a dummy version instead. This allows us to
2969 * have signal handler functions which always have a Siginfo_t parameter
2970 * regardless of platform, (and which will just be passed a NULL value
2971 * where the OS doesn't support HAS_SIGACTION).
2974 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2975 typedef siginfo_t Siginfo_t;
2977 #ifdef si_signo /* minix */
2987 * initialise to avoid floating-point exceptions from overflow, etc
2989 #ifndef PERL_FPU_INIT
2990 # ifdef HAS_FPSETMASK
2991 # if HAS_FLOATINGPOINT_H
2992 # include <floatingpoint.h>
2994 /* Some operating systems have this as a macro, which in turn expands to a comma
2995 expression, and the last sub-expression is something that gets calculated,
2996 and then they have the gall to warn that a value computed is not used. Hence
2998 # define PERL_FPU_INIT (void)fpsetmask(0)
2999 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3000 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3001 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3002 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3004 # define PERL_FPU_INIT
3007 #ifndef PERL_FPU_PRE_EXEC
3008 # define PERL_FPU_PRE_EXEC {
3009 # define PERL_FPU_POST_EXEC }
3012 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3013 * We need to reenable the "invalid" trap because otherwise generation
3014 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3015 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3017 # include <machine/fpu.h>
3018 # define PERL_SYS_FPU_INIT \
3020 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3021 signal(SIGFPE, SIG_IGN); \
3024 /* In IRIX the default for Flush to Zero bit is true,
3025 * which means that results going below the minimum of normal
3026 * floating points go to zero, instead of going denormal/subnormal.
3027 * This is unlike almost any other system running Perl, so let's clear it.
3028 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3029 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3031 * XXX The flush-to-zero behaviour should be a Configure scan.
3032 * To change the behaviour usually requires some system-specific
3033 * incantation, though, like the below. */
3035 # include <sys/fpu.h>
3036 # define PERL_SYS_FPU_INIT \
3038 union fpc_csr csr; \
3039 csr.fc_word = get_fpc_csr(); \
3040 csr.fc_struct.flush = 0; \
3041 set_fpc_csr(csr.fc_word); \
3045 #ifndef PERL_SYS_FPU_INIT
3046 # define PERL_SYS_FPU_INIT NOOP
3049 #ifndef PERL_SYS_INIT3_BODY
3050 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3054 =head1 Miscellaneous Functions
3056 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3057 Provides system-specific tune up of the C runtime environment necessary to
3058 run Perl interpreters. This should be called only once, before creating
3059 any Perl interpreters.
3061 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3062 Provides system-specific tune up of the C runtime environment necessary to
3063 run Perl interpreters. This should be called only once, before creating
3064 any Perl interpreters.
3066 =for apidoc Am|void|PERL_SYS_TERM|
3067 Provides system-specific clean up of the C runtime environment after
3068 running Perl interpreters. This should be called only once, after
3069 freeing any remaining Perl interpreters.
3074 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3075 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3076 #define PERL_SYS_TERM() Perl_sys_term()
3078 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3079 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3084 # ifdef _POSIX_PATH_MAX
3085 # if PATH_MAX > _POSIX_PATH_MAX
3086 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3087 * included the null byte or not. Later amendments of POSIX,
3088 * XPG4, the Austin Group, and the Single UNIX Specification
3089 * all explicitly include the null byte in the PATH_MAX.
3090 * Ditto for _POSIX_PATH_MAX. */
3091 # define MAXPATHLEN PATH_MAX
3093 # define MAXPATHLEN _POSIX_PATH_MAX
3096 # define MAXPATHLEN (PATH_MAX+1)
3099 # define MAXPATHLEN 1024 /* Err on the large side. */
3103 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
3104 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
3105 * this results in many functions being undeclared which bothers C++
3106 * May make sense to have threads after "*ish.h" anyway
3109 /* clang Thread Safety Analysis/Annotations/Attributes
3110 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3112 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3113 * Apple XCode hijacks __clang_major__ and __clang_minor__
3114 * (6.1 means really clang 3.6), so needs extra hijinks
3115 * (could probably also test the contents of __apple_build_version__).
3117 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3118 defined(__clang__) && \
3119 !defined(PERL_GLOBAL_STRUCT) && \
3120 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3122 ((!defined(__apple_build_version__) && \
3123 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3124 (__clang_major__ >= 4))) || \
3125 (defined(__apple_build_version__) && \
3126 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3127 (__clang_major__ >= 7))))
3128 # define PERL_TSA__(x) __attribute__((x))
3129 # define PERL_TSA_ACTIVE
3131 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3132 # undef PERL_TSA_ACTIVE
3135 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3136 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3138 #define PERL_TSA_CAPABILITY(x) \
3139 PERL_TSA__(capability(x))
3141 /* In the below examples the mutex must be lexically visible, usually
3142 * either as global variables, or as function arguments. */
3144 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3146 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3148 #define PERL_TSA_GUARDED_BY(x) \
3149 PERL_TSA__(guarded_by(x))
3151 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3152 * The data _behind_ the pointer is guarded.
3154 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3156 #define PERL_TSA_PT_GUARDED_BY(x) \
3157 PERL_TSA__(pt_guarded_by(x))
3159 /* PERL_TSA_REQUIRES() is used to annotate functions.
3160 * The caller MUST hold the resource when calling the function.
3162 * void Foo() PERL_TSA_REQUIRES(mutex);
3164 #define PERL_TSA_REQUIRES(x) \
3165 PERL_TSA__(requires_capability(x))
3167 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3168 * The caller MUST NOT hold resource when calling the function.
3170 * EXCLUDES should be used when the function first acquires
3171 * the resource and then releases it. Use to avoid deadlock.
3173 * void Foo() PERL_TSA_EXCLUDES(mutex);
3175 #define PERL_TSA_EXCLUDES(x) \
3176 PERL_TSA__(locks_excluded(x))
3178 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3179 * The caller MUST NOT hold the resource when calling the function,
3180 * and the function will acquire the resource.
3182 * void Foo() PERL_TSA_ACQUIRE(mutex);
3184 #define PERL_TSA_ACQUIRE(x) \
3185 PERL_TSA__(acquire_capability(x))
3187 /* PERL_TSA_RELEASE() is used to annotate functions.
3188 * The caller MUST hold the resource when calling the function,
3189 * and the function will release the resource.
3191 * void Foo() PERL_TSA_RELEASE(mutex);
3193 #define PERL_TSA_RELEASE(x) \
3194 PERL_TSA__(release_capability(x))
3196 /* PERL_TSA_NO_TSA is used to annotate functions.
3197 * Used when being intentionally unsafe, or when the code is too
3198 * complicated for the analysis. Use sparingly.
3200 * void Foo() PERL_TSA_NO_TSA;
3202 #define PERL_TSA_NO_TSA \
3203 PERL_TSA__(no_thread_safety_analysis)
3205 /* There are more annotations/attributes available, see the clang
3206 * documentation for details. */
3208 #if defined(USE_ITHREADS)
3210 # include <nw5thread.h>
3211 # elif defined(WIN32)
3212 # include <win32thread.h>
3214 # include "os2thread.h"
3215 # elif defined(I_MACH_CTHREADS)
3216 # include <mach/cthreads.h>
3217 typedef cthread_t perl_os_thread;
3218 typedef mutex_t perl_mutex;
3219 typedef condition_t perl_cond;
3220 typedef void * perl_key;
3221 # elif defined(I_PTHREAD) /* Posix threads */
3222 # include <pthread.h>
3223 typedef pthread_t perl_os_thread;
3224 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3225 typedef pthread_cond_t perl_cond;
3226 typedef pthread_key_t perl_key;
3228 #endif /* USE_ITHREADS */
3230 #ifdef PERL_TSA_ACTIVE
3231 /* Since most pthread mutex interfaces have not been annotated, we
3232 * need to have these wrappers. The NO_TSA annotation is quite ugly
3233 * but it cannot be avoided in plain C, unlike in C++, where one could
3234 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3236 * The bodies of these wrappers are in util.c
3238 * TODO: however, some platforms are starting to get these clang
3239 * thread safety annotations for pthreads, for example FreeBSD.
3240 * Do we need a way to a bypass these wrappers? */
3241 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3242 PERL_TSA_ACQUIRE(*mutex)
3244 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3245 PERL_TSA_RELEASE(*mutex)
3254 # include "netware.h"
3257 #define STATUS_UNIX PL_statusvalue
3259 # define STATUS_NATIVE PL_statusvalue_vms
3261 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3262 * its contents can not be trusted. Unfortunately, Perl seems to check
3263 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3266 # include <stsdef.h>
3268 /* Presume this because if VMS changes it, it will require a new
3269 * set of APIs for waiting on children for binary compatibility.
3271 # define child_offset_bits (8)
3272 # ifndef C_FAC_POSIX
3273 # define C_FAC_POSIX 0x35A000
3276 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3277 * platform from the existing UNIX or Native status values.
3280 # define STATUS_EXIT \
3281 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3282 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3285 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3286 * exit code and shifts the UNIX value over the correct number of bits to
3287 * be a child status. Usually the number of bits is 8, but that could be
3288 * platform dependent. The NATIVE status code is presumed to have either
3289 * from a child process.
3292 /* This is complicated. The child processes return a true native VMS
3293 status which must be saved. But there is an assumption in Perl that
3294 the UNIX child status has some relationship to errno values, so
3295 Perl tries to translate it to text in some of the tests.
3296 In order to get the string translation correct, for the error, errno
3297 must be EVMSERR, but that generates a different text message
3298 than what the test programs are expecting. So an errno value must
3299 be derived from the native status value when an error occurs.
3300 That will hide the true native status message. With this version of
3301 perl, the true native child status can always be retrieved so that
3302 is not a problem. But in this case, Pl_statusvalue and errno may
3303 have different values in them.
3306 # define STATUS_NATIVE_CHILD_SET(n) \
3308 I32 evalue = (I32)n; \
3309 if (evalue == EVMSERR) { \
3310 PL_statusvalue_vms = vaxc$errno; \
3311 PL_statusvalue = evalue; \
3313 PL_statusvalue_vms = evalue; \
3314 if (evalue == -1) { \
3315 PL_statusvalue = -1; \
3316 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3318 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3319 set_vaxc_errno(evalue); \
3320 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3321 set_errno(EVMSERR); \
3322 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3323 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3327 # ifdef VMSISH_STATUS
3328 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3330 # define STATUS_CURRENT STATUS_UNIX
3333 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3334 * the NATIVE status to an equivalent value. Can not be used to translate
3335 * exit code values as exit code values are not guaranteed to have any
3336 * relationship at all to errno values.
3337 * This is used when Perl is forcing errno to have a specific value.
3339 # define STATUS_UNIX_SET(n) \
3341 I32 evalue = (I32)n; \
3342 PL_statusvalue = evalue; \
3343 if (PL_statusvalue != -1) { \
3344 if (PL_statusvalue != EVMSERR) { \
3345 PL_statusvalue &= 0xFFFF; \
3346 if (MY_POSIX_EXIT) \
3347 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3348 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3351 PL_statusvalue_vms = vaxc$errno; \
3354 else PL_statusvalue_vms = SS$_ABORT; \
3355 set_vaxc_errno(PL_statusvalue_vms); \
3358 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3359 * the NATIVE error status based on it.
3361 * When in the default mode to comply with the Perl VMS documentation,
3362 * 0 is a success and any other code sets the NATIVE status to a failure
3363 * code of SS$_ABORT.
3365 * In the new POSIX EXIT mode, native status will be set so that the
3366 * actual exit code will can be retrieved by the calling program or
3369 * If the exit code is not clearly a UNIX parent or child exit status,
3370 * it will be passed through as a VMS status.
3373 # define STATUS_UNIX_EXIT_SET(n) \
3375 I32 evalue = (I32)n; \
3376 PL_statusvalue = evalue; \
3377 if (MY_POSIX_EXIT) { \
3378 if (evalue <= 0xFF00) { \
3379 if (evalue > 0xFF) \
3380 evalue = (evalue >> child_offset_bits) & 0xFF; \
3381 PL_statusvalue_vms = \
3382 (C_FAC_POSIX | (evalue << 3 ) | \
3383 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3384 } else /* forgive them Perl, for they have sinned */ \
3385 PL_statusvalue_vms = evalue; \
3388 PL_statusvalue_vms = SS$_NORMAL; \
3389 else if (evalue <= 0xFF00) \
3390 PL_statusvalue_vms = SS$_ABORT; \
3391 else { /* forgive them Perl, for they have sinned */ \
3392 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3393 else PL_statusvalue_vms = vaxc$errno; \
3394 /* And obviously used a VMS status value instead of UNIX */ \
3395 PL_statusvalue = EVMSERR; \
3397 set_vaxc_errno(PL_statusvalue_vms); \
3402 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3403 * and sets the NATIVE error status based on it. This special case
3404 * is needed to maintain compatibility with past VMS behavior.
3406 * In the default mode on VMS, this number is passed through as
3407 * both the NATIVE and UNIX status. Which makes it different
3408 * that the STATUS_UNIX_EXIT_SET.
3410 * In the new POSIX EXIT mode, native status will be set so that the
3411 * actual exit code will can be retrieved by the calling program or
3414 * A POSIX exit code is from 0 to 255. If the exit code is higher
3415 * than this, it needs to be assumed that it is a VMS exit code and
3419 # define STATUS_EXIT_SET(n) \
3421 I32 evalue = (I32)n; \
3422 PL_statusvalue = evalue; \
3423 if (MY_POSIX_EXIT) \
3424 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3425 PL_statusvalue_vms = \
3426 (C_FAC_POSIX | (evalue << 3 ) | \
3427 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3429 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3430 set_vaxc_errno(PL_statusvalue_vms); \
3434 /* This macro forces a success status */
3435 # define STATUS_ALL_SUCCESS \
3436 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3438 /* This macro forces a failure status */
3439 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3440 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3441 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3443 #elif defined(__amigaos4__)
3444 /* A somewhat experimental attempt to simulate posix return code values */
3445 # define STATUS_NATIVE PL_statusvalue_posix
3446 # define STATUS_NATIVE_CHILD_SET(n) \
3448 PL_statusvalue_posix = (n); \
3449 if (PL_statusvalue_posix < 0) { \
3450 PL_statusvalue = -1; \
3453 PL_statusvalue = n << 8; \
3456 # define STATUS_UNIX_SET(n) \
3458 PL_statusvalue = (n); \
3459 if (PL_statusvalue != -1) \
3460 PL_statusvalue &= 0xFFFF; \
3462 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3463 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3464 # define STATUS_CURRENT STATUS_UNIX
3465 # define STATUS_EXIT STATUS_UNIX
3466 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3467 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3470 # define STATUS_NATIVE PL_statusvalue_posix
3471 # if defined(WCOREDUMP)
3472 # define STATUS_NATIVE_CHILD_SET(n) \
3474 PL_statusvalue_posix = (n); \
3475 if (PL_statusvalue_posix == -1) \
3476 PL_statusvalue = -1; \
3479 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3480 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3481 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3484 # elif defined(WIFEXITED)
3485 # define STATUS_NATIVE_CHILD_SET(n) \
3487 PL_statusvalue_posix = (n); \
3488 if (PL_statusvalue_posix == -1) \
3489 PL_statusvalue = -1; \
3492 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3493 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3497 # define STATUS_NATIVE_CHILD_SET(n) \
3499 PL_statusvalue_posix = (n); \
3500 if (PL_statusvalue_posix == -1) \
3501 PL_statusvalue = -1; \
3504 PL_statusvalue_posix & 0xFFFF; \
3508 # define STATUS_UNIX_SET(n) \
3510 PL_statusvalue = (n); \
3511 if (PL_statusvalue != -1) \
3512 PL_statusvalue &= 0xFFFF; \
3514 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3515 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3516 # define STATUS_CURRENT STATUS_UNIX
3517 # define STATUS_EXIT STATUS_UNIX
3518 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3519 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3522 /* flags in PL_exit_flags for nature of exit() */
3523 #define PERL_EXIT_EXPECTED 0x01
3524 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3525 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3526 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3529 /* format to use for version numbers in file/directory names */
3530 /* XXX move to Configure? */
3531 /* This was only ever used for the current version, and that can be done at
3532 compile time, as PERL_FS_VERSION, so should we just delete it? */
3533 # ifndef PERL_FS_VER_FMT
3534 # define PERL_FS_VER_FMT "%d.%d.%d"
3538 #ifndef PERL_FS_VERSION
3539 # define PERL_FS_VERSION PERL_VERSION_STRING
3542 /* This defines a way to flush all output buffers. This may be a
3543 * performance issue, so we allow people to disable it. Also, if
3544 * we are using stdio, there are broken implementations of fflush(NULL)
3545 * out there, Solaris being the most prominent.
3547 #ifndef PERL_FLUSHALL_FOR_CHILD
3548 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3549 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3550 # elif defined(FFLUSH_ALL)
3551 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3553 # define PERL_FLUSHALL_FOR_CHILD NOOP
3557 #ifndef PERL_WAIT_FOR_CHILDREN
3558 # define PERL_WAIT_FOR_CHILDREN NOOP
3561 /* the traditional thread-unsafe notion of "current interpreter". */
3562 #ifndef PERL_SET_INTERP
3563 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3566 #ifndef PERL_GET_INTERP
3567 # define PERL_GET_INTERP (PL_curinterp)
3570 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3571 # ifdef MULTIPLICITY
3572 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3574 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3578 This replaces the previous %_ "hack" by the "%p" hacks.
3579 All that is required is that the perl source does not
3580 use "%-p" or "%-<number>p" or "%<number>p" formats.
3581 These formats will still work in perl code.
3582 See comments in sv.c for further details.
3584 Robin Barker 2005-07-14
3586 No longer use %1p for VDf = %vd. RMB 2007-10-19
3590 # define SVf_(n) "-" STRINGIFY(n) "p"
3598 # define SVf32 SVf_(32)
3602 # define SVf256 SVf_(256)
3605 #define SVfARG(p) ((void*)(p))
3611 /* Not ideal, but we cannot easily include a number in an already-numeric
3612 * format sequence. */
3614 # define HEKf256 "3p"
3617 #define HEKfARG(p) ((void*)(p))
3620 =for apidoc Amnh||UTF8f
3621 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3624 * %4p is a custom format
3627 # define UTF8f "d%" UVuf "%4p"
3629 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3632 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3635 /* not used; but needed for backward compatibility with XS code? - RMB */
3641 #if !defined(DEBUGGING) && !defined(NDEBUG)
3646 /* For functions that are marked as __attribute__noreturn__, it's not
3647 appropriate to call return. In either case, include the lint directive.
3649 #ifdef HASATTRIBUTE_NORETURN
3650 # define NORETURN_FUNCTION_END NOT_REACHED;
3652 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3655 #ifdef HAS_BUILTIN_EXPECT
3656 # define EXPECT(expr,val) __builtin_expect(expr,val)
3658 # define EXPECT(expr,val) (expr)
3662 =head1 Miscellaneous Functions
3664 =for apidoc AmU|bool|LIKELY|const bool expr
3666 Returns the input unchanged, but at the same time it gives a branch prediction
3667 hint to the compiler that this condition is likely to be true.
3669 =for apidoc AmU|bool|UNLIKELY|const bool expr
3671 Returns the input unchanged, but at the same time it gives a branch prediction
3672 hint to the compiler that this condition is likely to be false.
3676 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3677 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3679 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3683 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3684 time invariants. That is, their argument must be a constant expression that
3685 can be verified by the compiler. This expression can contain anything that's
3686 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3687 the expression evaluates to 0, compilation fails.
3688 Because they generate no runtime code (i.e. their use is "free"), they're
3689 always active, even under non-DEBUGGING builds.
3690 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3691 file scope (outside of any function).
3692 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3695 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3696 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3697 || (__STDC_VERSION__ - 0) >= 201101L)) \
3698 || (defined(__cplusplus) && __cplusplus >= 201103L))
3699 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3700 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3701 matter what <assert.h> says.
3703 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3705 /* We use a bit-field instead of an array because gcc accepts
3706 'typedef char x[n]' where n is not a compile-time constant.
3707 We want to enforce constantness.
3709 # define STATIC_ASSERT_2(COND, SUFFIX) \
3711 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3712 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3713 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3714 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3716 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3717 error (static_assert is a declaration, and only statements can have labels).
3719 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3721 #ifndef __has_builtin
3722 # define __has_builtin(x) 0 /* not a clang style compiler */
3725 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3726 hint to a compiler about a statement of fact in a function call free
3727 expression, which allows the compiler to generate better machine code.
3728 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3729 the control path is unreachable. In a for loop, ASSUME can be used to hint
3730 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3731 intrinsic function, see its documents for more details.
3735 # if __has_builtin(__builtin_unreachable) \
3736 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3737 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3738 # elif defined(_MSC_VER)
3739 # define ASSUME(x) __assume(x)
3740 # elif defined(__ARMCC_VERSION) /* untested */
3741 # define ASSUME(x) __promise(x)
3743 /* a random compiler might define assert to its own special optimization token
3744 so pass it through to C lib as a last resort */
3745 # define ASSUME(x) assert(x)
3748 # define ASSUME(x) assert(x)
3751 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3752 # define NOT_REACHED
3753 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3754 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3755 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3757 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3760 /* Some unistd.h's give a prototype for pause() even though
3761 HAS_PAUSE ends up undefined. This causes the #define
3762 below to be rejected by the compiler. Sigh.
3767 #define Pause() sleep((32767<<16)+32767)
3771 # ifdef IOCPARM_MASK
3772 /* on BSDish systems we're safe */
3773 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3774 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3775 /* on Linux systems we're safe; except when we're not [perl #38223] */
3776 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3778 /* otherwise guess at what's safe */
3779 # define IOCPARM_LEN(x) 256
3783 #if defined(__CYGWIN__)
3785 * This symbol, if defined, indicates that the program should
3786 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3787 * that a file is in "binary" mode -- that is, that no translation
3788 * of bytes occurs on read or write operations.
3790 # define USEMYBINMODE /**/
3791 # include <io.h> /* for setmode() prototype */
3792 # define my_binmode(fp, iotype, mode) \
3793 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3797 void init_os_extras(void);
3800 #ifdef UNION_ANY_DEFINITION
3801 UNION_ANY_DEFINITION;
3819 void (*any_dptr) (void*);
3820 void (*any_dxptr) (pTHX_ void*);
3824 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3826 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3827 #define FILTER_DATA(idx) \
3828 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3829 #define FILTER_ISREADER(idx) \
3830 (PL_parser && PL_parser->rsfp_filters \
3831 && idx >= AvFILLp(PL_parser->rsfp_filters))
3832 #define PERL_FILTER_EXISTS(i) \
3833 (PL_parser && PL_parser->rsfp_filters \
3834 && (i) <= av_tindex(PL_parser->rsfp_filters))
3836 #if defined(_AIX) && !defined(_AIX43)
3837 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3838 /* We cannot include <crypt.h> to get the struct crypt_data
3839 * because of setkey prototype problems when threading */
3840 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3841 /* From OSF, Not needed in AIX
3849 #endif /* threading */
3852 #ifndef PERL_CALLCONV
3854 # define PERL_CALLCONV extern "C"
3856 # define PERL_CALLCONV
3859 #ifndef PERL_CALLCONV_NO_RET
3860 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3863 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3864 dont have a noreturn as a declaration specifier
3866 #ifndef PERL_STATIC_NO_RET
3867 # define PERL_STATIC_NO_RET STATIC
3869 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3870 builds that dont have a noreturn as a declaration specifier
3872 #ifndef PERL_STATIC_INLINE_NO_RET
3873 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3876 #ifndef PERL_STATIC_FORCE_INLINE
3877 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3880 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3881 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3885 # include "iperlsys.h"
3888 #ifdef __LIBCATAMOUNT__
3889 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3891 #define FAKE_BIT_BUCKET
3894 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3895 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3896 * Configure, despite their names being similar to other defines like
3897 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3898 * hashes. Therefore to enable/disable the hash randomisation defines
3899 * use the Configure -Accflags=... instead. */
3900 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3901 # define USE_HASH_SEED
3907 /* macros to define bit-fields in structs. */
3908 #ifndef PERL_BITFIELD8
3909 # define PERL_BITFIELD8 U8
3911 #ifndef PERL_BITFIELD16
3912 # define PERL_BITFIELD16 U16
3914 #ifndef PERL_BITFIELD32
3915 # define PERL_BITFIELD32 U32
3925 #include "opnames.h"
3932 #include "warnings.h"
3935 /* these would be in doio.h if there was such a file */
3936 #define my_stat() my_stat_flags(SV_GMAGIC)
3937 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3939 /* defined in sv.c, but also used in [ach]v.c */
3942 #undef _XPVCV_COMMON
3946 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3948 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3950 /* These have to be predeclared, as they are used in proto.h which is #included
3951 * before their definitions in regcomp.h. */
3954 typedef struct regnode_charclass regnode_charclass;
3956 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3957 * used under /l matching */
3958 typedef struct regnode_charclass_posixl regnode_charclass_class;
3959 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3961 typedef struct regnode_ssc regnode_ssc;
3962 typedef struct RExC_state_t RExC_state_t;
3963 struct _reg_trie_data;
3967 struct ptr_tbl_ent {
3968 struct ptr_tbl_ent* next;
3974 struct ptr_tbl_ent** tbl_ary;
3977 struct ptr_tbl_arena *tbl_arena;
3978 struct ptr_tbl_ent *tbl_arena_next;
3979 struct ptr_tbl_ent *tbl_arena_end;
3982 #if defined(htonl) && !defined(HAS_HTONL)
3985 #if defined(htons) && !defined(HAS_HTONS)
3988 #if defined(ntohl) && !defined(HAS_NTOHL)
3991 #if defined(ntohs) && !defined(HAS_NTOHS)
3999 # if (BYTEORDER & 0xffff) == 0x4321
4000 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4001 re-order their values. However, to behave identically to the alternative
4002 implementations, they should truncate to the correct size. */
4003 # define ntohl(x) ((x)&0xFFFFFFFF)
4004 # define htonl(x) ntohl(x)
4005 # define ntohs(x) ((x)&0xFFFF)
4006 # define htons(x) ntohs(x)
4007 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4009 /* Note that we can't straight out declare our own htonl and htons because
4010 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4011 to avoid the overhead of initialising the socket subsystem, but the headers
4012 that *declare* the various functions are still seen. If we declare our own
4013 htonl etc they will clash with the declarations in the Win32 headers. */
4015 PERL_STATIC_INLINE U32
4016 my_swap32(const U32 x) {
4017 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4018 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4021 PERL_STATIC_INLINE U16
4022 my_swap16(const U16 x) {
4023 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4026 # define htonl(x) my_swap32(x)
4027 # define ntohl(x) my_swap32(x)
4028 # define ntohs(x) my_swap16(x)
4029 # define htons(x) my_swap16(x)
4031 # error "Unsupported byteorder"
4032 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4033 the error message. Please check the value of the macro BYTEORDER, as defined
4034 in config.h. The values of BYTEORDER we expect are
4036 big endian little endian
4037 32 bit 0x4321 0x1234
4038 64 bit 0x87654321 0x12345678
4040 If you have a system with a different byte order, please see
4041 pod/perlhack.pod for how to submit a patch to add supporting code.
4047 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4050 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4051 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4052 re-order their values. However, to behave identically to the alternative
4053 implementations, they should truncate to the correct size. */
4054 # define vtohl(x) ((x)&0xFFFFFFFF)
4055 # define vtohs(x) ((x)&0xFFFF)
4056 # define htovl(x) vtohl(x)
4057 # define htovs(x) vtohs(x)
4058 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4059 # define vtohl(x) ((((x)&0xFF)<<24) \
4061 +(((x)&0x0000FF00)<<8) \
4062 +(((x)&0x00FF0000)>>8) )
4063 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4064 # define htovl(x) vtohl(x)
4065 # define htovs(x) vtohs(x)
4067 # error "Unsupported byteorder"
4068 /* If you have need for current perl on PDP-11 or similar, and can help test
4069 that blead keeps working on a mixed-endian system, then see
4070 pod/perlhack.pod for how to submit patches to things working again. */
4073 /* *MAX Plus 1. A floating point value.
4074 Hopefully expressed in a way that dodgy floating point can't mess up.
4075 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4077 May find that some broken compiler will want the value cast to I32.
4078 [after the shift, as signed >> may not be as secure as unsigned >>]
4080 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4081 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4082 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4083 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4084 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4086 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4088 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4089 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4090 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4092 /* This may look like unnecessary jumping through hoops, but converting
4093 out of range floating point values to integers *is* undefined behaviour,
4094 and it is starting to bite.
4097 #define I_32(what) (cast_i32((NV)(what)))
4098 #define U_32(what) (cast_ulong((NV)(what)))
4099 #define I_V(what) (cast_iv((NV)(what)))
4100 #define U_V(what) (cast_uv((NV)(what)))
4102 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4103 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4104 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4105 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4106 : ((n) < U32_MAX_P1 ? (U32) (n) \
4107 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4108 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4109 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4110 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4111 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4112 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4113 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4116 #define U_S(what) ((U16)U_32(what))
4117 #define U_I(what) ((unsigned int)U_32(what))
4118 #define U_L(what) U_32(what)
4121 # ifndef Perl_signbit
4122 # define Perl_signbit signbit
4126 /* These do not care about the fractional part, only about the range. */
4127 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4128 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4130 /* Used with UV/IV arguments: */
4131 /* XXXX: need to speed it up */
4132 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4133 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4140 #if !(defined(WIN32) || defined(SYMBIAN))
4141 Uid_t getuid (void);
4142 Uid_t geteuid (void);
4143 Gid_t getgid (void);
4144 Gid_t getegid (void);
4148 #ifndef Perl_debug_log
4149 # define Perl_debug_log PerlIO_stderr()
4152 #ifndef Perl_error_log
4153 # define Perl_error_log (PL_stderrgv \
4154 && isGV(PL_stderrgv) \
4155 && GvIOp(PL_stderrgv) \
4156 && IoOFP(GvIOp(PL_stderrgv)) \
4157 ? IoOFP(GvIOp(PL_stderrgv)) \
4162 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4163 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4164 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4165 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4166 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4167 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4168 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4169 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4170 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4171 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4172 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4173 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4174 /* U is reserved for Unofficial, exploratory hacking */
4175 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4177 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4178 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4179 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4180 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4181 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4182 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4183 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4184 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4185 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4186 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4187 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4188 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4189 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4190 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4191 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4192 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4194 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4195 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4197 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4198 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4199 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4200 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4201 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4202 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4203 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4204 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4205 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4206 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4207 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4208 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4209 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4210 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4211 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4212 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4213 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4214 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4215 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4216 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4217 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4218 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4219 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4220 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4221 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4222 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4223 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4224 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4225 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4226 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4227 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4228 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4229 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4233 # define DEBUG_p_TEST DEBUG_p_TEST_
4234 # define DEBUG_s_TEST DEBUG_s_TEST_
4235 # define DEBUG_l_TEST DEBUG_l_TEST_
4236 # define DEBUG_t_TEST DEBUG_t_TEST_
4237 # define DEBUG_o_TEST DEBUG_o_TEST_
4238 # define DEBUG_c_TEST DEBUG_c_TEST_
4239 # define DEBUG_P_TEST DEBUG_P_TEST_
4240 # define DEBUG_m_TEST DEBUG_m_TEST_
4241 # define DEBUG_f_TEST DEBUG_f_TEST_
4242 # define DEBUG_r_TEST DEBUG_r_TEST_
4243 # define DEBUG_x_TEST DEBUG_x_TEST_
4244 # define DEBUG_u_TEST DEBUG_u_TEST_
4245 # define DEBUG_U_TEST DEBUG_U_TEST_
4246 # define DEBUG_X_TEST DEBUG_X_TEST_
4247 # define DEBUG_D_TEST DEBUG_D_TEST_
4248 # define DEBUG_S_TEST DEBUG_S_TEST_
4249 # define DEBUG_T_TEST DEBUG_T_TEST_
4250 # define DEBUG_R_TEST DEBUG_R_TEST_
4251 # define DEBUG_J_TEST DEBUG_J_TEST_
4252 # define DEBUG_v_TEST DEBUG_v_TEST_
4253 # define DEBUG_C_TEST DEBUG_C_TEST_
4254 # define DEBUG_A_TEST DEBUG_A_TEST_
4255 # define DEBUG_q_TEST DEBUG_q_TEST_
4256 # define DEBUG_M_TEST DEBUG_M_TEST_
4257 # define DEBUG_B_TEST DEBUG_B_TEST_
4258 # define DEBUG_L_TEST DEBUG_L_TEST_
4259 # define DEBUG_i_TEST DEBUG_i_TEST_
4260 # define DEBUG_y_TEST DEBUG_y_TEST_
4261 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4262 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4263 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4264 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4265 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4267 # define PERL_DEB(a) a
4268 # define PERL_DEB2(a,b) a
4269 # define PERL_DEBUG(a) if (PL_debug) a
4270 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4271 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4272 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4273 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4274 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4275 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4276 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4278 /* Temporarily turn off memory debugging in case the a
4279 * does memory allocation, either directly or indirectly. */
4280 # define DEBUG_m(a) \
4282 if (PERL_GET_INTERP) { \
4284 if (DEBUG_m_TEST) { \
4285 PL_debug &= ~DEBUG_m_FLAG; \
4287 PL_debug |= DEBUG_m_FLAG; \
4292 # define DEBUG__(t, a) \
4294 if (t) STMT_START {a;} STMT_END; \
4297 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4299 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4300 # ifdef PERL_EXT_RE_BUILD
4301 # define DEBUG_r(a) STMT_START {a;} STMT_END
4303 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4304 # endif /* PERL_EXT_RE_BUILD */
4306 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4307 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4308 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4309 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4310 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4311 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4312 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4313 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4314 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4315 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4317 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4318 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4319 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4320 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4321 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4322 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4323 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4324 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4325 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4326 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4327 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4328 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4330 #else /* ! DEBUGGING below */
4332 # define DEBUG_p_TEST (0)
4333 # define DEBUG_s_TEST (0)
4334 # define DEBUG_l_TEST (0)
4335 # define DEBUG_t_TEST (0)
4336 # define DEBUG_o_TEST (0)
4337 # define DEBUG_c_TEST (0)
4338 # define DEBUG_P_TEST (0)
4339 # define DEBUG_m_TEST (0)
4340 # define DEBUG_f_TEST (0)
4341 # define DEBUG_r_TEST (0)
4342 # define DEBUG_x_TEST (0)
4343 # define DEBUG_u_TEST (0)
4344 # define DEBUG_U_TEST (0)
4345 # define DEBUG_X_TEST (0)
4346 # define DEBUG_D_TEST (0)
4347 # define DEBUG_S_TEST (0)
4348 # define DEBUG_T_TEST (0)
4349 # define DEBUG_R_TEST (0)
4350 # define DEBUG_J_TEST (0)
4351 # define DEBUG_v_TEST (0)
4352 # define DEBUG_C_TEST (0)
4353 # define DEBUG_A_TEST (0)
4354 # define DEBUG_q_TEST (0)
4355 # define DEBUG_M_TEST (0)
4356 # define DEBUG_B_TEST (0)
4357 # define DEBUG_L_TEST (0)
4358 # define DEBUG_i_TEST (0)
4359 # define DEBUG_y_TEST (0)
4360 # define DEBUG_Xv_TEST (0)
4361 # define DEBUG_Uv_TEST (0)
4362 # define DEBUG_Pv_TEST (0)
4363 # define DEBUG_Lv_TEST (0)
4364 # define DEBUG_yv_TEST (0)
4366 # define PERL_DEB(a)
4367 # define PERL_DEB2(a,b) b
4368 # define PERL_DEBUG(a)
4396 # define DEBUG_Xv(a)
4397 # define DEBUG_Uv(a)
4398 # define DEBUG_Pv(a)
4399 # define DEBUG_Lv(a)
4400 # define DEBUG_yv(a)
4401 #endif /* DEBUGGING */
4404 #define DEBUG_SCOPE(where) \
4406 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4407 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4408 __FILE__, __LINE__));
4410 /* Keep the old croak based assert for those who want it, and as a fallback if
4411 the platform is so heretically non-ANSI that it can't assert. */
4413 #define Perl_assert(what) PERL_DEB2( \
4414 ((what) ? ((void) 0) : \
4415 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4416 "\", line %d", STRINGIFY(what), __LINE__), \
4417 (void) 0)), ((void)0))
4419 /* assert() gets defined if DEBUGGING.
4420 * If no DEBUGGING, the <assert.h> has not been included. */
4422 # define assert(what) Perl_assert(what)
4425 # define assert_(what) assert(what),
4427 # define assert_(what)
4431 I32 (*uf_val)(pTHX_ IV, SV*);
4432 I32 (*uf_set)(pTHX_ IV, SV*);
4436 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4437 * XS code wanting to be backward compatible can do something
4438 * like the following:
4440 #ifndef PERL_MG_UFUNC
4441 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4444 static PERL_MG_UFUNC(foo_get, index, val)
4454 #ifndef PERL_MG_UFUNC
4455 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4460 /* isfinite and others are here rather than in math.h as C99 stipulates */
4465 # if !defined(WIN32) && !defined(VMS)
4467 char *crypt (const char*, const char*);
4469 # endif /* !WIN32 */
4472 char *getlogin (void);
4474 # endif /* !WIN32 */
4475 #endif /* !__cplusplus */
4477 /* Fixme on VMS. This needs to be a run-time, not build time options */
4478 /* Also rename() is affected by this */
4479 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4480 #define UNLINK unlnk
4481 I32 unlnk (pTHX_ const char*);
4483 #define UNLINK PerlLIO_unlink
4486 /* some versions of glibc are missing the setresuid() proto */
4487 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4488 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4490 /* some versions of glibc are missing the setresgid() proto */
4491 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4492 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4495 #ifndef HAS_SETREUID
4496 # ifdef HAS_SETRESUID
4497 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4498 # define HAS_SETREUID
4501 #ifndef HAS_SETREGID
4502 # ifdef HAS_SETRESGID
4503 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4504 # define HAS_SETREGID
4508 /* Sighandler_t defined in iperlsys.h */
4510 #ifdef HAS_SIGACTION
4511 typedef struct sigaction Sigsave_t;
4513 typedef Sighandler_t Sigsave_t;
4524 # define RUNOPS_DEFAULT Perl_runops_debug
4526 # define RUNOPS_DEFAULT Perl_runops_standard
4529 #if defined(USE_PERLIO)
4530 EXTERN_C void PerlIO_teardown(void);
4531 # ifdef USE_ITHREADS
4532 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4533 # define PERLIO_TERM \
4535 PerlIO_teardown(); \
4536 MUTEX_DESTROY(&PL_perlio_mutex);\
4539 # define PERLIO_INIT
4540 # define PERLIO_TERM PerlIO_teardown()
4543 # define PERLIO_INIT
4544 # define PERLIO_TERM
4548 # ifdef MUTEX_INIT_CALLS_MALLOC
4549 # define MALLOC_INIT \
4551 PL_malloc_mutex = NULL; \
4552 MUTEX_INIT(&PL_malloc_mutex); \
4554 # define MALLOC_TERM \
4556 perl_mutex tmp = PL_malloc_mutex; \
4557 PL_malloc_mutex = NULL; \
4558 MUTEX_DESTROY(&tmp); \
4561 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4562 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4565 # define MALLOC_INIT
4566 # define MALLOC_TERM
4569 #if defined(PERL_IMPLICIT_CONTEXT)
4571 struct perl_memory_debug_header;
4572 struct perl_memory_debug_header {
4574 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4577 struct perl_memory_debug_header *prev;
4578 struct perl_memory_debug_header *next;
4579 # ifdef PERL_DEBUG_READONLY_COW
4584 #elif defined(PERL_DEBUG_READONLY_COW)
4586 struct perl_memory_debug_header;
4587 struct perl_memory_debug_header {
4593 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4595 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4596 (sizeof(struct perl_memory_debug_header) + \
4597 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4598 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4601 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4604 #ifdef PERL_TRACK_MEMPOOL
4605 # ifdef PERL_DEBUG_READONLY_COW
4606 # define INIT_TRACK_MEMPOOL(header, interp) \
4608 (header).interpreter = (interp); \
4609 (header).prev = (header).next = &(header); \
4610 (header).readonly = 0; \
4613 # define INIT_TRACK_MEMPOOL(header, interp) \
4615 (header).interpreter = (interp); \
4616 (header).prev = (header).next = &(header); \
4620 # define INIT_TRACK_MEMPOOL(header, interp)
4623 #ifdef I_MALLOCMALLOC
4624 /* Needed for malloc_size(), malloc_good_size() on some systems */
4625 # include <malloc/malloc.h>
4629 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4631 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4632 # ifdef PERL_TRACK_MEMPOOL
4633 # define Perl_safesysmalloc_size(where) \
4634 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4636 # define Perl_safesysmalloc_size(where) malloc_size(where)
4639 # ifdef HAS_MALLOC_GOOD_SIZE
4640 # ifdef PERL_TRACK_MEMPOOL
4641 # define Perl_malloc_good_size(how_much) \
4642 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4644 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4647 /* Having this as the identity operation makes some code simpler. */
4648 # define Perl_malloc_good_size(how_much) (how_much)
4652 typedef int (*runops_proc_t)(pTHX);
4653 typedef void (*share_proc_t) (pTHX_ SV *sv);
4654 typedef int (*thrhook_proc_t) (pTHX);
4655 typedef OP* (*PPADDR_t[]) (pTHX);
4656 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4657 typedef void (*despatch_signals_proc_t) (pTHX);
4659 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4660 # include <crt_externs.h> /* for the env array */
4661 # define environ (*_NSGetEnviron())
4662 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4663 /* VMS and some other platforms don't use the environ array */
4664 EXTERN_C char **environ; /* environment variables supplied via exec */
4667 #define PERL_PATCHLEVEL_H_IMPLICIT
4668 #include "patchlevel.h"
4669 #undef PERL_PATCHLEVEL_H_IMPLICIT
4671 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4672 STRINGIFY(PERL_VERSION) "." \
4673 STRINGIFY(PERL_SUBVERSION)
4675 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4676 STRINGIFY(PERL_API_VERSION) "." \
4677 STRINGIFY(PERL_API_SUBVERSION)
4681 /* handy constants */
4682 EXTCONST char PL_warn_uninit[]
4683 INIT("Use of uninitialized value%s%s%s");
4684 EXTCONST char PL_warn_uninit_sv[]
4685 INIT("Use of uninitialized value%" SVf "%s%s");
4686 EXTCONST char PL_warn_nosemi[]
4687 INIT("Semicolon seems to be missing");
4688 EXTCONST char PL_warn_reserved[]
4689 INIT("Unquoted string \"%s\" may clash with future reserved word");
4690 EXTCONST char PL_warn_nl[]
4691 INIT("Unsuccessful %s on filename containing newline");
4692 EXTCONST char PL_no_wrongref[]
4693 INIT("Can't use %s ref as %s ref");
4694 /* The core no longer needs this here. If you require the string constant,
4695 please inline a copy into your own code. */
4696 EXTCONST char PL_no_symref[] __attribute__deprecated__
4697 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4698 EXTCONST char PL_no_symref_sv[]
4699 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4701 EXTCONST char PL_no_usym[]
4702 INIT("Can't use an undefined value as %s reference");
4703 EXTCONST char PL_no_aelem[]
4704 INIT("Modification of non-creatable array value attempted, subscript %d");
4705 EXTCONST char PL_no_helem_sv[]
4706 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4707 EXTCONST char PL_no_modify[]
4708 INIT("Modification of a read-only value attempted");
4709 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4710 INIT("Out of memory!\n");
4711 EXTCONST char PL_no_security[]
4712 INIT("Insecure dependency in %s%s");
4713 EXTCONST char PL_no_sock_func[]
4714 INIT("Unsupported socket function \"%s\" called");
4715 EXTCONST char PL_no_dir_func[]
4716 INIT("Unsupported directory function \"%s\" called");
4717 EXTCONST char PL_no_func[]
4718 INIT("The %s function is unimplemented");
4719 EXTCONST char PL_no_myglob[]
4720 INIT("\"%s\" %s %s can't be in a package");
4721 EXTCONST char PL_no_localize_ref[]
4722 INIT("Can't localize through a reference");
4723 EXTCONST char PL_memory_wrap[]
4724 INIT("panic: memory wrap");
4725 EXTCONST char PL_extended_cp_format[]
4726 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4727 " and so is not portable");
4728 EXTCONST char PL_Yes[]
4730 EXTCONST char PL_No[]
4732 EXTCONST char PL_Zero[]
4734 EXTCONST char PL_hexdigit[]
4735 INIT("0123456789abcdef0123456789ABCDEF");
4737 EXTCONST STRLEN PL_WARN_ALL
4739 EXTCONST STRLEN PL_WARN_NONE
4742 /* This is constant on most architectures, a global on OS/2 */
4744 EXTCONST char PL_sh_path[]
4745 INIT(SH_PATH); /* full path of shell */
4749 EXTCONST char PL_cshname[]
4751 # define PL_cshlen (sizeof(CSH "") - 1)
4754 /* These are baked at compile time into any shared perl library.
4755 In future releases this will allow us in main() to sanity test the
4756 library we're linking against. */
4758 EXTCONST U8 PL_revision
4759 INIT(PERL_REVISION);
4760 EXTCONST U8 PL_version
4762 EXTCONST U8 PL_subversion
4763 INIT(PERL_SUBVERSION);
4765 EXTCONST char PL_uuemap[65]
4766 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4768 /* a special string address whose value is "isa", but which perl knows
4769 * to treat as if it were really "DOES" when printing the method name in
4770 * the "Can't call method '%s'" error message */
4771 EXTCONST char PL_isa_DOES[]
4775 EXTCONST char PL_uudmap[256] =
4777 # include "uuudmap.h"
4779 # include "uudmap.h"
4782 EXTCONST char PL_bitcount[256] =
4784 # include "ubitcount.h"
4786 # include "bitcount.h"
4789 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4790 EXTCONST int PL_sig_num[] = { SIG_NUM };
4792 EXTCONST char PL_uudmap[256];
4793 EXTCONST char PL_bitcount[256];
4794 EXTCONST char* const PL_sig_name[];
4795 EXTCONST int PL_sig_num[];
4798 /* fast conversion and case folding tables. The folding tables complement the
4799 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4800 * folds such as outside the range or to multiple characters. */
4805 /* The EBCDIC fold table depends on the code page, and hence is found in
4808 EXTCONST unsigned char PL_fold[] = {
4809 0, 1, 2, 3, 4, 5, 6, 7,
4810 8, 9, 10, 11, 12, 13, 14, 15,
4811 16, 17, 18, 19, 20, 21, 22, 23,
4812 24, 25, 26, 27, 28, 29, 30, 31,
4813 32, 33, 34, 35, 36, 37, 38, 39,
4814 40, 41, 42, 43, 44, 45, 46, 47,
4815 48, 49, 50, 51, 52, 53, 54, 55,
4816 56, 57, 58, 59, 60, 61, 62, 63,
4817 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4818 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4819 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4820 'x', 'y', 'z', 91, 92, 93, 94, 95,
4821 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4822 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4823 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4824 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4825 128, 129, 130, 131, 132, 133, 134, 135,
4826 136, 137, 138, 139, 140, 141, 142, 143,
4827 144, 145, 146, 147, 148, 149, 150, 151,
4828 152, 153, 154, 155, 156, 157, 158, 159,
4829 160, 161, 162, 163, 164, 165, 166, 167,
4830 168, 169, 170, 171, 172, 173, 174, 175,
4831 176, 177, 178, 179, 180, 181, 182, 183,
4832 184, 185, 186, 187, 188, 189, 190, 191,
4833 192, 193, 194, 195, 196, 197, 198, 199,
4834 200, 201, 202, 203, 204, 205, 206, 207,
4835 208, 209, 210, 211, 212, 213, 214, 215,
4836 216, 217, 218, 219, 220, 221, 222, 223,
4837 224, 225, 226, 227, 228, 229, 230, 231,
4838 232, 233, 234, 235, 236, 237, 238, 239,
4839 240, 241, 242, 243, 244, 245, 246, 247,
4840 248, 249, 250, 251, 252, 253, 254, 255
4842 EXTCONST unsigned char PL_fold_latin1[] = {
4843 /* Full latin1 complement folding, except for three problematic code points:
4844 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4845 * fold complements outside the Latin1 range, so can't match something
4846 * that isn't in utf8.
4847 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4848 * not one, so can't be represented in this table.
4850 * All have to be specially handled */
4851 0, 1, 2, 3, 4, 5, 6, 7,
4852 8, 9, 10, 11, 12, 13, 14, 15,
4853 16, 17, 18, 19, 20, 21, 22, 23,
4854 24, 25, 26, 27, 28, 29, 30, 31,
4855 32, 33, 34, 35, 36, 37, 38, 39,
4856 40, 41, 42, 43, 44, 45, 46, 47,
4857 48, 49, 50, 51, 52, 53, 54, 55,
4858 56, 57, 58, 59, 60, 61, 62, 63,
4859 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4860 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4861 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4862 'x', 'y', 'z', 91, 92, 93, 94, 95,
4863 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4864 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4865 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4866 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4867 128, 129, 130, 131, 132, 133, 134, 135,
4868 136, 137, 138, 139, 140, 141, 142, 143,
4869 144, 145, 146, 147, 148, 149, 150, 151,
4870 152, 153, 154, 155, 156, 157, 158, 159,
4871 160, 161, 162, 163, 164, 165, 166, 167,
4872 168, 169, 170, 171, 172, 173, 174, 175,
4873 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4874 184, 185, 186, 187, 188, 189, 190, 191,
4875 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4876 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4877 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4878 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4879 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4880 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4881 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4882 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4883 255 /* y with diaeresis */
4886 /* If these tables are accessed through ebcdic, the access will be converted to
4888 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4889 0, 1, 2, 3, 4, 5, 6, 7,
4890 8, 9, 10, 11, 12, 13, 14, 15,
4891 16, 17, 18, 19, 20, 21, 22, 23,
4892 24, 25, 26, 27, 28, 29, 30, 31,
4893 32, 33, 34, 35, 36, 37, 38, 39,
4894 40, 41, 42, 43, 44, 45, 46, 47,
4895 48, 49, 50, 51, 52, 53, 54, 55,
4896 56, 57, 58, 59, 60, 61, 62, 63,
4897 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4898 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4899 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4900 'x', 'y', 'z', 91, 92, 93, 94, 95,
4901 96, 97, 98, 99, 100, 101, 102, 103,
4902 104, 105, 106, 107, 108, 109, 110, 111,
4903 112, 113, 114, 115, 116, 117, 118, 119,
4904 120, 121, 122, 123, 124, 125, 126, 127,
4905 128, 129, 130, 131, 132, 133, 134, 135,
4906 136, 137, 138, 139, 140, 141, 142, 143,
4907 144, 145, 146, 147, 148, 149, 150, 151,
4908 152, 153, 154, 155, 156, 157, 158, 159,
4909 160, 161, 162, 163, 164, 165, 166, 167,
4910 168, 169, 170, 171, 172, 173, 174, 175,
4911 176, 177, 178, 179, 180, 181, 182, 183,
4912 184, 185, 186, 187, 188, 189, 190, 191,
4913 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4914 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4915 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4916 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4917 224, 225, 226, 227, 228, 229, 230, 231,
4918 232, 233, 234, 235, 236, 237, 238, 239,
4919 240, 241, 242, 243, 244, 245, 246, 247,
4920 248, 249, 250, 251, 252, 253, 254, 255
4923 /* upper and title case of latin1 characters, modified so that the three tricky
4924 * ones are mapped to 255 (which is one of the three) */
4925 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4926 0, 1, 2, 3, 4, 5, 6, 7,
4927 8, 9, 10, 11, 12, 13, 14, 15,
4928 16, 17, 18, 19, 20, 21, 22, 23,
4929 24, 25, 26, 27, 28, 29, 30, 31,
4930 32, 33, 34, 35, 36, 37, 38, 39,
4931 40, 41, 42, 43, 44, 45, 46, 47,
4932 48, 49, 50, 51, 52, 53, 54, 55,
4933 56, 57, 58, 59, 60, 61, 62, 63,
4934 64, 65, 66, 67, 68, 69, 70, 71,
4935 72, 73, 74, 75, 76, 77, 78, 79,
4936 80, 81, 82, 83, 84, 85, 86, 87,
4937 88, 89, 90, 91, 92, 93, 94, 95,
4938 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4939 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4940 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4941 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4942 128, 129, 130, 131, 132, 133, 134, 135,
4943 136, 137, 138, 139, 140, 141, 142, 143,
4944 144, 145, 146, 147, 148, 149, 150, 151,
4945 152, 153, 154, 155, 156, 157, 158, 159,
4946 160, 161, 162, 163, 164, 165, 166, 167,
4947 168, 169, 170, 171, 172, 173, 174, 175,
4948 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4949 184, 185, 186, 187, 188, 189, 190, 191,
4950 192, 193, 194, 195, 196, 197, 198, 199,
4951 200, 201, 202, 203, 204, 205, 206, 207,
4952 208, 209, 210, 211, 212, 213, 214, 215,
4953 216, 217, 218, 219, 220, 221, 222,
4954 #if UNICODE_MAJOR_VERSION > 2 \
4955 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4956 && UNICODE_DOT_DOT_VERSION >= 8)
4958 #else /* uc(sharp s) is 'sharp s' itself in early unicode */
4961 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4962 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4963 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4964 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4966 #endif /* !EBCDIC, but still in DOINIT */
4967 #else /* ! DOINIT */
4969 EXTCONST unsigned char PL_fold[];
4970 EXTCONST unsigned char PL_fold_latin1[];
4971 EXTCONST unsigned char PL_mod_latin1_uc[];
4972 EXTCONST unsigned char PL_latin1_lc[];
4976 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4978 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */
4979 0, 1, 2, 3, 4, 5, 6, 7,
4980 8, 9, 10, 11, 12, 13, 14, 15,
4981 16, 17, 18, 19, 20, 21, 22, 23,
4982 24, 25, 26, 27, 28, 29, 30, 31,
4983 32, 33, 34, 35, 36, 37, 38, 39,
4984 40, 41, 42, 43, 44, 45, 46, 47,
4985 48, 49, 50, 51, 52, 53, 54, 55,
4986 56, 57, 58, 59, 60, 61, 62, 63,
4987 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4988 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4989 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4990 'x', 'y', 'z', 91, 92, 93, 94, 95,
4991 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4992 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4993 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4994 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4995 128, 129, 130, 131, 132, 133, 134, 135,
4996 136, 137, 138, 139, 140, 141, 142, 143,
4997 144, 145, 146, 147, 148, 149, 150, 151,
4998 152, 153, 154, 155, 156, 157, 158, 159,
4999 160, 161, 162, 163, 164, 165, 166, 167,
5000 168, 169, 170, 171, 172, 173, 174, 175,
5001 176, 177, 178, 179, 180, 181, 182, 183,
5002 184, 185, 186, 187, 188, 189, 190, 191,
5003 192, 193, 194, 195, 196, 197, 198, 199,
5004 200, 201, 202, 203, 204, 205, 206, 207,
5005 208, 209, 210, 211, 212, 213, 214, 215,
5006 216, 217, 218, 219, 220, 221, 222, 223,
5007 224, 225, 226, 227, 228, 229, 230, 231,
5008 232, 233, 234, 235, 236, 237, 238, 239,
5009 240, 241, 242, 243, 244, 245, 246, 247,
5010 248, 249, 250, 251, 252, 253, 254, 255
5013 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */
5015 #endif /* !PERL_GLOBAL_STRUCT */
5019 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
5020 1, 2, 84, 151, 154, 155, 156, 157,
5021 165, 246, 250, 3, 158, 7, 18, 29,
5022 40, 51, 62, 73, 85, 96, 107, 118,
5023 129, 140, 147, 148, 149, 150, 152, 153,
5024 255, 6, 8, 9, 10, 11, 12, 13,
5025 14, 15, 24, 25, 26, 27, 28, 226,
5026 29, 30, 31, 32, 33, 43, 44, 45,
5027 46, 47, 48, 49, 50, 76, 77, 78,
5028 79, 80, 81, 82, 83, 84, 85, 86,
5029 87, 94, 95, 234, 181, 233, 187, 190,
5030 180, 96, 97, 98, 99, 100, 101, 102,
5031 104, 112, 182, 174, 236, 232, 229, 103,
5032 228, 226, 114, 115, 116, 117, 118, 119,
5033 120, 121, 122, 235, 176, 230, 194, 162,
5034 130, 131, 132, 133, 134, 135, 136, 137,
5035 138, 139, 201, 205, 163, 217, 220, 224,
5036 5, 248, 227, 244, 242, 255, 241, 231,
5037 240, 253, 16, 197, 19, 20, 21, 187,
5038 23, 169, 210, 245, 237, 249, 247, 239,
5039 168, 252, 34, 196, 36, 37, 38, 39,
5040 41, 42, 251, 254, 238, 223, 221, 213,
5041 225, 177, 52, 53, 54, 55, 56, 57,
5042 58, 59, 60, 61, 63, 64, 65, 66,
5043 67, 68, 69, 70, 71, 72, 74, 75,
5044 205, 208, 186, 202, 200, 218, 198, 179,
5045 178, 214, 88, 89, 90, 91, 92, 93,
5046 217, 166, 170, 207, 199, 209, 206, 204,
5047 160, 212, 105, 106, 108, 109, 110, 111,
5048 203, 113, 216, 215, 192, 175, 193, 243,
5049 172, 161, 123, 124, 125, 126, 127, 128,
5050 222, 219, 211, 195, 188, 193, 185, 184,
5051 191, 183, 141, 142, 143, 144, 145, 146
5053 #else /* ascii rather than ebcdic */
5054 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
5055 1, 2, 84, 151, 154, 155, 156, 157,
5056 165, 246, 250, 3, 158, 7, 18, 29,
5057 40, 51, 62, 73, 85, 96, 107, 118,
5058 129, 140, 147, 148, 149, 150, 152, 153,
5059 255, 182, 224, 205, 174, 176, 180, 217,
5060 233, 232, 236, 187, 235, 228, 234, 226,
5061 222, 219, 211, 195, 188, 193, 185, 184,
5062 191, 183, 201, 229, 181, 220, 194, 162,
5063 163, 208, 186, 202, 200, 218, 198, 179,
5064 178, 214, 166, 170, 207, 199, 209, 206,
5065 204, 160, 212, 216, 215, 192, 175, 173,
5066 243, 172, 161, 190, 203, 189, 164, 230,
5067 167, 248, 227, 244, 242, 255, 241, 231,
5068 240, 253, 169, 210, 245, 237, 249, 247,
5069 239, 168, 252, 251, 254, 238, 223, 221,
5070 213, 225, 177, 197, 171, 196, 159, 4,
5071 5, 6, 8, 9, 10, 11, 12, 13,
5072 14, 15, 16, 17, 19, 20, 21, 22,
5073 23, 24, 25, 26, 27, 28, 30, 31,
5074 32, 33, 34, 35, 36, 37, 38, 39,
5075 41, 42, 43, 44, 45, 46, 47, 48,
5076 49, 50, 52, 53, 54, 55, 56, 57,
5077 58, 59, 60, 61, 63, 64, 65, 66,
5078 67, 68, 69, 70, 71, 72, 74, 75,
5079 76, 77, 78, 79, 80, 81, 82, 83,
5080 86, 87, 88, 89, 90, 91, 92, 93,
5081 94, 95, 97, 98, 99, 100, 101, 102,
5082 103, 104, 105, 106, 108, 109, 110, 111,
5083 112, 113, 114, 115, 116, 117, 119, 120,
5084 121, 122, 123, 124, 125, 126, 127, 128,
5085 130, 131, 132, 133, 134, 135, 136, 137,
5086 138, 139, 141, 142, 143, 144, 145, 146
5090 EXTCONST unsigned char PL_freq[];
5093 /* Although only used for debugging, these constants must be available in
5094 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5095 * which has DEBUGGING enabled always */
5097 EXTCONST char* const PL_block_type[] = {
5113 EXTCONST char* PL_block_type[];
5116 /* These are all the compile time options that affect binary compatibility.
5117 Other compile time options that are binary compatible are in perl.c
5118 (in S_Internals_V()). Both are combined for the output of perl -V
5119 However, this string will be embedded in any shared perl library, which will
5120 allow us add a comparison check in perlmain.c in the near future. */
5122 EXTCONST char PL_bincompat_options[] =
5123 # ifdef DEBUG_LEAKING_SCALARS
5124 " DEBUG_LEAKING_SCALARS"
5126 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5127 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5135 # ifdef HAVE_INTERP_INTERN
5136 " HAVE_INTERP_INTERN"
5138 # ifdef MULTIPLICITY
5144 # ifdef PERLIO_LAYERS
5147 # ifdef PERL_DEBUG_READONLY_COW
5148 " PERL_DEBUG_READONLY_COW"
5150 # ifdef PERL_DEBUG_READONLY_OPS
5151 " PERL_DEBUG_READONLY_OPS"
5153 # ifdef PERL_GLOBAL_STRUCT
5154 " PERL_GLOBAL_STRUCT"
5156 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
5157 " PERL_GLOBAL_STRUCT_PRIVATE"
5159 # ifdef PERL_IMPLICIT_CONTEXT
5160 " PERL_IMPLICIT_CONTEXT"
5162 # ifdef PERL_IMPLICIT_SYS
5163 " PERL_IMPLICIT_SYS"
5168 # ifdef PERL_NEED_APPCTX
5171 # ifdef PERL_NEED_TIMESBASE
5172 " PERL_NEED_TIMESBASE"
5177 # ifdef PERL_SAWAMPERSAND
5178 " PERL_SAWAMPERSAND"
5180 # ifdef PERL_TRACK_MEMPOOL
5181 " PERL_TRACK_MEMPOOL"
5183 # ifdef PERL_USES_PL_PIDSTATUS
5184 " PERL_USES_PL_PIDSTATUS"
5186 # ifdef USE_64_BIT_ALL
5189 # ifdef USE_64_BIT_INT
5195 # ifdef USE_ITHREADS
5198 # ifdef USE_LARGE_FILES
5201 # ifdef USE_LOCALE_COLLATE
5202 " USE_LOCALE_COLLATE"
5204 # ifdef USE_LOCALE_NUMERIC
5205 " USE_LOCALE_NUMERIC"
5207 # ifdef USE_LOCALE_TIME
5210 # ifdef USE_LONG_DOUBLE
5216 # ifdef USE_QUADMATH
5219 # ifdef USE_REENTRANT_API
5220 " USE_REENTRANT_API"
5225 # ifdef VMS_DO_SOCKETS
5228 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5229 " VMS_SHORTEN_LONG_SYMBOLS"
5231 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5232 " VMS_SYMBOL_CASE_AS_IS"
5236 EXTCONST char PL_bincompat_options[];
5239 #ifndef PERL_SET_PHASE
5240 # define PERL_SET_PHASE(new_phase) \
5241 PERL_DTRACE_PROBE_PHASE(new_phase); \
5242 PL_phase = new_phase;
5245 /* The interpreter phases. If these ever change, PL_phase_names right below will
5246 * need to be updated accordingly. */
5248 PERL_PHASE_CONSTRUCT = 0,
5249 PERL_PHASE_START = 1,
5250 PERL_PHASE_CHECK = 2,
5251 PERL_PHASE_INIT = 3,
5254 PERL_PHASE_DESTRUCT = 6
5258 EXTCONST char *const PL_phase_names[] = {
5268 EXTCONST char *const PL_phase_names[];
5272 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5273 * instead of using the newer PL_phase, which provides everything PL_dirty
5274 * provided, and more. */
5275 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5277 # define PL_amagic_generation PL_na
5278 # define PL_encoding ((SV *)NULL)
5279 #endif /* !PERL_CORE */
5281 #define PL_hints PL_compiling.cop_hints
5282 #define PL_maxo MAXO
5286 /*****************************************************************************/
5287 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5288 /*****************************************************************************/
5289 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5292 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5301 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5309 XATTRBLOCK, /* next token should be an attribute or block */
5310 XATTRTERM, /* next token should be an attribute, or block in a term */
5314 XTERMORDORDOR /* evil hack */
5315 /* update exp_name[] in toke.c if adding to this enum */
5318 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5320 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5321 special and there is no need for HINT_PRIVATE_MASK for COPs
5322 However, bitops store HINT_INTEGER in their op_private.
5324 NOTE: The typical module using these has the bit value hard-coded, so don't
5325 blindly change the values of these.
5327 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5328 is for "use locale 'FOO'" which excludes some categories. It requires going
5329 to %^H to find out which are in and which are out. This could be extended
5330 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5332 #define HINT_INTEGER 0x00000001 /* integer pragma */
5333 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5334 #define HINT_LOCALE 0x00000004 /* locale pragma */
5335 #define HINT_BYTES 0x00000008 /* bytes pragma */
5336 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5338 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5339 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5340 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5342 #define HINT_BLOCK_SCOPE 0x00000100
5343 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5344 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5345 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5347 /* The HINT_NEW_* constants are used by the overload pragma */
5348 #define HINT_NEW_INTEGER 0x00001000
5349 #define HINT_NEW_FLOAT 0x00002000
5350 #define HINT_NEW_BINARY 0x00004000
5351 #define HINT_NEW_STRING 0x00008000
5352 #define HINT_NEW_RE 0x00010000
5353 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5354 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5355 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5357 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5358 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5360 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5361 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5363 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5365 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5367 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5369 /* Note: Used for HINT_M_VMSISH_*,
5370 currently defined by vms/vmsish.h:
5375 /* The following are stored in $^H{sort}, not in PL_hints */
5376 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5377 #define HINT_SORT_UNSTABLE 0x00000200
5379 /* flags for PL_sawampersand */
5381 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5382 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5383 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5385 #ifndef PERL_SAWAMPERSAND
5386 # define PL_sawampersand \
5387 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5390 /* Used for debugvar magic */
5391 #define DBVARMG_SINGLE 0
5392 #define DBVARMG_TRACE 1
5393 #define DBVARMG_SIGNAL 2
5394 #define DBVARMG_COUNT 3
5396 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5397 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5398 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5400 /* Various states of the input record separator SV (rs) */
5401 #define RsSNARF(sv) (! SvOK(sv))
5402 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5403 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5404 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5406 /* A struct for keeping various DEBUGGING related stuff,
5407 * neatly packed. Currently only scratch variables for
5408 * constructing debug output are included. Needed always,
5409 * not just when DEBUGGING, though, because of the re extension. c*/
5410 struct perl_debug_pad {
5414 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5415 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5416 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5419 /* Enable variables which are pointers to functions */
5420 typedef void (*peep_t)(pTHX_ OP* o);
5421 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5422 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5423 char* strend, char* strbeg, I32 minend,
5424 SV* screamer, void* data, U32 flags);
5425 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5426 char *strpos, char *strend,
5428 re_scream_pos_data *d);
5429 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5430 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5431 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5432 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5434 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5435 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5436 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5437 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5438 typedef void (*XSINIT_t) (pTHX);
5439 typedef void (*ATEXIT_t) (pTHX_ void*);
5440 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5442 typedef OP* (*Perl_ppaddr_t)(pTHX);
5443 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5444 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5445 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5446 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5448 typedef void(*globhook_t)(pTHX);
5450 #define KEYWORD_PLUGIN_DECLINE 0
5451 #define KEYWORD_PLUGIN_STMT 1
5452 #define KEYWORD_PLUGIN_EXPR 2
5454 /* Interpreter exitlist entry */
5455 typedef struct exitlistentry {
5456 void (*fn) (pTHX_ void*);
5458 } PerlExitListEntry;
5460 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5461 /* These have to be before perlvars.h */
5462 #if !defined(HAS_SIGACTION) && defined(VMS)
5463 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5465 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5466 #if defined(KILL_BY_SIGPRC)
5467 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5470 #if !defined(MULTIPLICITY)
5472 struct interpreter {
5478 /* If we have multiple interpreters define a struct
5479 holding variables which must be per-interpreter
5480 If we don't have threads anything that would have
5481 be per-thread is per-interpreter.
5484 /* Set up PERLVAR macros for populating structs */
5485 # define PERLVAR(prefix,var,type) type prefix##var;
5487 /* 'var' is an array of length 'n' */
5488 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5490 /* initialize 'var' to init' */
5491 # define PERLVARI(prefix,var,type,init) type prefix##var;
5493 /* like PERLVARI, but make 'var' a const */
5494 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5496 struct interpreter {
5497 # include "intrpvar.h"
5500 EXTCONST U16 PL_interp_size
5501 INIT(sizeof(struct interpreter));
5503 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5504 STRUCT_OFFSET(struct interpreter, member) + \
5505 sizeof(((struct interpreter*)0)->member)
5507 /* This will be useful for subsequent releases, because this has to be the
5508 same in your libperl as in main(), else you have a mismatch and must abort.
5510 EXTCONST U16 PL_interp_size_5_18_0
5511 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5514 # ifdef PERL_GLOBAL_STRUCT
5515 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5516 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5519 # include "perlvars.h"
5522 EXTCONST U16 PL_global_struct_size
5523 INIT(sizeof(struct perl_vars));
5526 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5527 EXT struct perl_vars PL_Vars;
5528 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5529 # undef PERL_GET_VARS
5530 # define PERL_GET_VARS() PL_VarsPtr
5531 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5532 # else /* PERL_CORE */
5533 # if !defined(__GNUC__) || !defined(WIN32)
5536 struct perl_vars *PL_VarsPtr;
5537 # define PL_Vars (*((PL_VarsPtr) \
5538 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5539 # endif /* PERL_CORE */
5540 # endif /* PERL_GLOBAL_STRUCT */
5542 /* Done with PERLVAR macros for now ... */
5548 #endif /* MULTIPLICITY */
5550 struct tempsym; /* defined in pp_pack.c */
5557 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5558 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5561 # include "malloc_ctl.h"
5565 * This provides a layer of functions and macros to ensure extensions will
5566 * get to use the same RTL functions as the core.
5569 # include "win32iop.h"
5575 /* this has structure inits, so it cannot be included before here */
5578 /* The following must follow proto.h as #defines mess up syntax */
5580 #if !defined(PERL_FOR_X2P)
5581 # include "embedvar.h"
5584 /* Now include all the 'global' variables
5585 * If we don't have threads or multiple interpreters
5586 * these include variables that would have been their struct-s
5589 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5590 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5591 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5592 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5594 #if !defined(MULTIPLICITY)
5596 # include "intrpvar.h"
5598 # define PL_sv_yes (PL_sv_immortals[0])
5599 # define PL_sv_undef (PL_sv_immortals[1])
5600 # define PL_sv_no (PL_sv_immortals[2])
5601 # define PL_sv_zero (PL_sv_immortals[3])
5605 /* All core uses now exterminated. Ensure no zombies can return: */
5609 /* Now all the config stuff is setup we can include embed.h
5610 In particular, need the relevant *ish file included already, as it may
5611 define HAVE_INTERP_INTERN */
5614 #ifndef PERL_GLOBAL_STRUCT
5617 # include "perlvars.h"
5627 #if !defined(MULTIPLICITY)
5628 /* Set up PERLVAR macros for populating structs */
5629 # define PERLVAR(prefix,var,type) type prefix##var;
5630 /* 'var' is an array of length 'n' */
5631 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5632 /* initialize 'var' to init' */
5633 # define PERLVARI(prefix,var,type,init) type prefix##var;
5634 /* like PERLVARI, but make 'var' a const */
5635 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5637 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5638 struct PerlHandShakeInterpreter {
5639 # include "intrpvar.h"
5649 /* dummy variables that hold pointers to both runops functions, thus forcing
5650 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5652 EXTCONST runops_proc_t PL_runops_std
5653 INIT(Perl_runops_standard);
5654 EXTCONST runops_proc_t PL_runops_dbg
5655 INIT(Perl_runops_debug);
5657 #define EXT_MGVTBL EXTCONST MGVTBL
5659 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5660 #define PERL_MAGIC_VALUE_MAGIC 0x80
5661 #define PERL_MAGIC_VTABLE_MASK 0x3F
5662 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5663 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5664 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5665 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5667 #include "mg_vtable.h"
5670 EXTCONST U8 PL_magic_data[256] =
5672 # include "umg_data.h"
5674 # include "mg_data.h"
5678 EXTCONST U8 PL_magic_data[256];
5682 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5684 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5686 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5688 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5690 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5692 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5694 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5698 EXTCONST bool PL_valid_types_IVX[];
5699 EXTCONST bool PL_valid_types_NVX[];
5700 EXTCONST bool PL_valid_types_PVX[];
5701 EXTCONST bool PL_valid_types_RV[];
5702 EXTCONST bool PL_valid_types_IV_set[];
5703 EXTCONST bool PL_valid_types_NV_set[];
5707 /* In C99 we could use designated (named field) union initializers.
5708 * In C89 we need to initialize the member declared first.
5709 * In C++ we need extern C initializers.
5711 * With the U8_NV version you will want to have inner braces,
5712 * while with the NV_U8 use just the NV. */
5714 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5715 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5717 /* if these never got defined, they need defaults */
5718 #ifndef PERL_SET_CONTEXT
5719 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5722 #ifndef PERL_GET_CONTEXT
5723 # define PERL_GET_CONTEXT PERL_GET_INTERP
5726 #ifndef PERL_GET_THX
5727 # define PERL_GET_THX ((void*)NULL)
5730 #ifndef PERL_SET_THX
5731 # define PERL_SET_THX(t) NOOP
5736 /* The tables below are adapted from
5737 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5740 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5742 Permission is hereby granted, free of charge, to any person obtaining a copy of
5743 this software and associated documentation files (the "Software"), to deal in
5744 the Software without restriction, including without limitation the rights to
5745 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5746 of the Software, and to permit persons to whom the Software is furnished to do
5747 so, subject to the following conditions:
5749 The above copyright notice and this permission notice shall be included in all
5750 copies or substantial portions of the Software.
5752 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5753 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5754 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5755 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5756 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5757 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5763 # if 0 /* This is the original table given in
5764 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5765 static U8 utf8d_C9[] = {
5766 /* The first part of the table maps bytes to character classes that
5767 * to reduce the size of the transition table and create bitmasks. */
5768 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/
5769 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/
5770 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-5F*/
5771 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-7F*/
5772 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, /*-9F*/
5773 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /*-BF*/
5774 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /*-DF*/
5775 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, /*-FF*/
5777 /* The second part is a transition table that maps a combination
5778 * of a state of the automaton and a character class to a state. */
5779 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5780 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5781 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5782 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5783 12,36,12,12,12,12,12,12,12,12,12,12
5788 /* This is a version of the above table customized for Perl that doesn't
5789 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5790 * machines). The classes have been renumbered so that the patterns are more
5791 * evident in the table. The class numbers for start bytes are constrained so
5792 * that they can be used as a shift count for masking off the leading one bits.
5793 * It would make the code simpler if start byte FF could also be handled, but
5794 * doing so would mean adding nodes for each of continuation bytes 6-12
5795 * remaining, and two more nodes for overlong detection (a total of 9), and
5796 * there is room only for 4 more nodes unless we make the array U16 instead of
5801 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5803 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5804 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5805 * 88-8F 10 Not legal immediately after start bytes E0 F0
5806 * 90-9F 11 Not legal immediately after start byte E0
5818 * FE 17 (or 1 on 32-bit machines, since it overflows)
5822 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5823 /* The first part of the table maps bytes to character classes to reduce
5824 * the size of the transition table and create bitmasks. */
5825 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5826 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5827 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5828 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5829 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5830 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5831 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5832 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5833 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5834 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5835 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5836 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5837 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5838 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5839 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5840 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5848 /* The second part is a transition table that maps a combination
5849 * of a state of the automaton and a character class to a new state, called a
5850 * node. The nodes are:
5851 * N0 The initial state, and final accepting one.
5852 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5853 * immediately when the start byte indicates a two-byte sequence
5854 * N2 Any two continuation bytes left.
5855 * N3 Any three continuation bytes left.
5856 * N4 Any four continuation bytes left.
5857 * N5 Any five continuation bytes left.
5858 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5859 * the other continuations transition to N1
5860 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5861 * the other continuations transition to N2
5862 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5863 * the other continuations transition to N3
5864 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5865 * the other continuations transition to N4
5866 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5867 * the other continuations transition to N5
5868 * 1 Reject. All transitions not mentioned above (except the single
5869 * byte ones (as they are always legal) are to this state.
5872 # define NUM_CLASSES 18
5874 # define N1 ((N0) + NUM_CLASSES)
5875 # define N2 ((N1) + NUM_CLASSES)
5876 # define N3 ((N2) + NUM_CLASSES)
5877 # define N4 ((N3) + NUM_CLASSES)
5878 # define N5 ((N4) + NUM_CLASSES)
5879 # define N6 ((N5) + NUM_CLASSES)
5880 # define N7 ((N6) + NUM_CLASSES)
5881 # define N8 ((N7) + NUM_CLASSES)
5882 # define N9 ((N8) + NUM_CLASSES)
5883 # define N10 ((N9) + NUM_CLASSES)
5885 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5886 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5887 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5888 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5889 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5890 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5891 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5893 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5894 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5895 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5896 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5897 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5900 /* And below is a version of the above table that accepts only strict UTF-8.
5901 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5902 * passes this dfa, it will be for a well-formed, non-problematic code point
5903 * that can be returned immediately.
5905 * The "Implementation details" portion of
5906 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5907 * the first portion of the table maps each possible byte into a character
5908 * class. And that the classes for those bytes which are start bytes have been
5909 * carefully chosen so they serve as well to be used as a shift value to mask
5910 * off the leading 1 bits of the start byte. Unfortunately the addition of
5911 * being able to distinguish non-characters makes this not fully work. This is
5912 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5914 * 1) ED because it could be a surrogate
5915 * 2) EF because it could be a non-character
5916 * 3) the rest, which can never evaluate to a problematic code point.
5918 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5919 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5920 * But that only allows two categories, and we need three. khw made the
5921 * decision to therefore treat the ED start byte as an error, so that the dfa
5922 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5923 * distinguish EF vs the rest. Then special code is used to deal with ED,
5924 * that's executed only when the dfa drops out. The code points started by ED
5925 * are half surrogates, and half hangul syllables. This means that 2048 of
5926 * the hangul syllables (about 18%) take longer than all other non-problematic
5927 * code points to handle.
5929 * The changes to handle non-characters requires the addition of states and
5930 * classes to the dfa. (See the section on "Mapping bytes to character
5931 * classes" in the linked-to document for further explanation of the original
5955 * F1-F3 6 (6 bits can be stripped)
5956 * F4 5 (only 5 can be stripped)
5960 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5961 /* The first part of the table maps bytes to character classes to reduce
5962 * the size of the transition table and create bitmasks. */
5963 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5964 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5965 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5966 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5967 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5968 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5969 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5970 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5971 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5972 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5973 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5974 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5975 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5976 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5977 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5978 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5980 /* The second part is a transition table that maps a combination
5981 * of a state of the automaton and a character class to a new state, called a
5982 * node. The nodes are:
5983 * N0 The initial state, and final accepting one.
5984 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5985 * immediately when the start byte indicates a two-byte sequence
5986 * N2 Any two continuation bytes left.
5987 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5988 * the other continuations transition to state N1
5989 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5990 * the other continuations transitions to N1
5991 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5992 * [9AB]F transition to N10; the other continuations to N2.
5993 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5994 * to N10; the other continuations to N2.
5995 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5996 * (non-unicode); 8F transitions to N10; the other continuations to N2
5997 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5998 * (non-characters); the other continuations transition to N0.
5999 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
6000 * (non-characters); the other continuations transition to N0.
6001 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
6002 * Continuation byte BF transitions to N11; the other continuations to
6004 * N11 Initial sequence is the two bytes given in N10 followed by BF.
6005 * Continuation bytes BE and BF are illegal (non-characters); the other
6006 * continuations transition to N0.
6007 * 1 Reject. All transitions not mentioned above (except the single
6008 * byte ones (as they are always legal) are to this state.
6022 # define NUM_CLASSES 19
6024 # define N1 ((N0) + NUM_CLASSES)
6025 # define N2 ((N1) + NUM_CLASSES)
6026 # define N3 ((N2) + NUM_CLASSES)
6027 # define N4 ((N3) + NUM_CLASSES)
6028 # define N5 ((N4) + NUM_CLASSES)
6029 # define N6 ((N5) + NUM_CLASSES)
6030 # define N7 ((N6) + NUM_CLASSES)
6031 # define N8 ((N7) + NUM_CLASSES)
6032 # define N9 ((N8) + NUM_CLASSES)
6033 # define N10 ((N9) + NUM_CLASSES)
6034 # define N11 ((N10) + NUM_CLASSES)
6036 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
6037 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6038 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6039 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
6041 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
6042 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6043 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6044 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6045 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6046 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6047 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6048 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6049 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6052 /* And below is yet another version of the above tables that accepts only UTF-8
6053 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6054 * it allows non-characters. This is isomorphic to the original table
6055 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6069 * F1-F3 6 (6 bits can be stripped)
6070 * F4 5 (only 5 can be stripped)
6074 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6075 /* The first part of the table maps bytes to character classes to reduce
6076 * the size of the transition table and create bitmasks. */
6077 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6078 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6079 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6080 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6081 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6082 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6083 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6084 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6085 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6086 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6087 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6088 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6089 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6090 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6091 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6092 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6094 /* The second part is a transition table that maps a combination
6095 * of a state of the automaton and a character class to a new state, called a
6096 * node. The nodes are:
6097 * N0 The initial state, and final accepting one.
6098 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6099 * immediately when the start byte indicates a two-byte sequence
6100 * N2 Any two continuation bytes left.
6101 * N3 Any three continuation bytes left.
6102 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6103 * the other continuations transition to state N1
6104 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6105 * so are illegal. The other continuations transition to state N1.
6106 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6107 * the other continuations transition to N2
6108 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6109 * (non-unicode); the other continuations transition to N2
6110 * 1 Reject. All transitions not mentioned above (except the single
6111 * byte ones (as they are always legal) are to this state.
6123 # define NUM_CLASSES 12
6125 # define N1 ((N0) + NUM_CLASSES)
6126 # define N2 ((N1) + NUM_CLASSES)
6127 # define N3 ((N2) + NUM_CLASSES)
6128 # define N4 ((N3) + NUM_CLASSES)
6129 # define N5 ((N4) + NUM_CLASSES)
6130 # define N6 ((N5) + NUM_CLASSES)
6131 # define N7 ((N6) + NUM_CLASSES)
6133 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6134 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6135 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6136 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6137 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6139 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6140 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6141 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6142 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6145 # else /* End of is DOINIT */
6147 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6148 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6149 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6152 #endif /* end of isn't EBCDIC */
6154 #ifndef PERL_NO_INLINE_FUNCTIONS
6155 /* Static inline funcs that depend on includes and declarations above.
6156 Some of these reference functions in the perl object files, and some
6157 compilers aren't smart enough to eliminate unused static inline
6158 functions, so including this file in source code can cause link errors
6159 even if the source code uses none of the functions. Hence including these
6160 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
6161 (obviously) result in unworkable XS code, but allows simple probing code
6162 to continue to work, because it permits tests to include the perl headers
6163 for definitions without creating a link dependency on the perl library
6164 (which may not exist yet).
6167 # include "inline.h"
6170 #include "overload.h"
6179 CV* table[NofAMmeth];
6181 struct am_table_short {
6187 typedef struct am_table AMT;
6188 typedef struct am_table_short AMTS;
6190 #define AMGfallNEVER 1
6192 #define AMGfallYES 3
6194 #define AMTf_AMAGIC 1
6195 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6196 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6197 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6199 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6202 * some compilers like to redefine cos et alia as faster
6203 * (and less accurate?) versions called F_cos et cetera (Quidquid
6204 * latine dictum sit, altum viditur.) This trick collides with
6205 * the Perl overloading (amg). The following #defines fool both.
6210 # define F_atan2_amg atan2_amg
6213 # define F_cos_amg cos_amg
6216 # define F_exp_amg exp_amg
6219 # define F_log_amg log_amg
6222 # define F_pow_amg pow_amg
6225 # define F_sin_amg sin_amg
6228 # define F_sqrt_amg sqrt_amg
6230 #endif /* _FASTMATH */
6232 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6233 PERLDBf_NOOPT | PERLDBf_INTER | \
6234 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6235 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6237 /* No _NONAME, _GOTO */
6238 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6239 #define PERLDBf_LINE 0x02 /* Keep line # */
6240 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6241 #define PERLDBf_INTER 0x08 /* Preserve more data for
6242 later inspections */
6243 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6244 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6245 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6246 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6247 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6248 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6249 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6250 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6251 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6253 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6254 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6255 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6256 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6257 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6258 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6259 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6260 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6261 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6262 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6263 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6264 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6265 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6267 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6270 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6271 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6272 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6273 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6274 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6275 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6276 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6277 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6279 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6280 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6281 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6282 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6283 # define USER_PROP_MUTEX_INIT NOOP
6284 # define USER_PROP_MUTEX_LOCK NOOP
6285 # define USER_PROP_MUTEX_UNLOCK NOOP
6286 # define USER_PROP_MUTEX_TERM NOOP
6289 #ifdef USE_LOCALE /* These locale things are all subject to change */
6291 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6293 # define IN_LOCALE_RUNTIME (PL_curcop \
6294 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6296 /* Returns TRUE if either form of the locale pragma is in effect */
6297 # define IN_SOME_LOCALE_FORM_RUNTIME \
6298 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6300 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6301 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6302 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6305 =head1 Locale-related functions and macros
6307 =for apidoc Amn|bool|IN_LOCALE
6309 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6310 locale>>) is in effect.
6312 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6314 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6315 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6317 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6319 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6320 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6325 # define IN_LOCALE \
6326 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6327 # define IN_SOME_LOCALE_FORM \
6328 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6329 : IN_SOME_LOCALE_FORM_RUNTIME)
6331 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6332 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6334 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6335 # define IN_LC_PARTIAL_RUNTIME \
6336 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6338 # define IN_LC_COMPILETIME(category) \
6339 ( IN_LC_ALL_COMPILETIME \
6340 || ( IN_LC_PARTIAL_COMPILETIME \
6341 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6342 # define IN_LC_RUNTIME(category) \
6343 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6344 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6345 # define IN_LC(category) \
6346 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6348 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6350 /* This internal macro should be called from places that operate under
6351 * locale rules. If there is a problem with the current locale that
6352 * hasn't been raised yet, it will output a warning this time. Because
6353 * this will so rarely be true, there is no point to optimize for time;
6354 * instead it makes sense to minimize space used and do all the work in
6355 * the rarely called function */
6356 # ifdef USE_LOCALE_CTYPE
6357 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6359 if (UNLIKELY(PL_warn_locale)) { \
6360 Perl__warn_problematic_locale(); \
6364 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6368 /* These two internal macros are called when a warning should be raised,
6369 * and will do so if enabled. The first takes a single code point
6370 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6371 * string, and an end position which it won't try to read past */
6372 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6374 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6375 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6376 "Wide character (U+%" UVXf ") in %s",\
6377 (UV) cp, OP_DESC(PL_op)); \
6381 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6382 STMT_START { /* Check if to warn before doing the conversion work */\
6383 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6384 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6385 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6386 "Wide character (U+%" UVXf ") in %s", \
6388 ? UNICODE_REPLACEMENT \
6394 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6395 #else /* No locale usage */
6396 # define IN_LOCALE_RUNTIME 0
6397 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6398 # define IN_LOCALE_COMPILETIME 0
6399 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6400 # define IN_LOCALE 0
6401 # define IN_SOME_LOCALE_FORM 0
6402 # define IN_LC_ALL_COMPILETIME 0
6403 # define IN_LC_ALL_RUNTIME 0
6404 # define IN_LC_PARTIAL_COMPILETIME 0
6405 # define IN_LC_PARTIAL_RUNTIME 0
6406 # define IN_LC_COMPILETIME(category) 0
6407 # define IN_LC_RUNTIME(category) 0
6408 # define IN_LC(category) 0
6409 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6410 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6411 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6415 /* Locale/thread synchronization macros. These aren't needed if using
6416 * thread-safe locale operations, except if something is broken */
6417 #if defined(USE_LOCALE) \
6418 && defined(USE_ITHREADS) \
6419 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6421 /* We have a locale object holding the 'C' locale for Posix 2008 */
6422 # ifndef USE_POSIX_2008_LOCALE
6423 # define _LOCALE_TERM_POSIX_2008 NOOP
6425 # define _LOCALE_TERM_POSIX_2008 \
6427 if (PL_C_locale_obj) { \
6428 /* Make sure we aren't using the locale \
6429 * space we are about to free */ \
6430 uselocale(LC_GLOBAL_LOCALE); \
6431 freelocale(PL_C_locale_obj); \
6432 PL_C_locale_obj = (locale_t) NULL; \
6437 /* This is used as a generic lock for locale operations. For example this is
6438 * used when calling nl_langinfo() so that another thread won't zap the
6439 * contents of its buffer before it gets saved; and it's called when changing
6440 * the locale of LC_MESSAGES. On some systems the latter can cause the
6441 * nl_langinfo buffer to be zapped under a race condition.
6443 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6444 * should be contained entirely within the locked portion of LC_NUMERIC. This
6445 * mutex should be used only in very short sections of code, while
6446 * LC_NUMERIC_LOCK may span more operations. By always following this
6447 * convention, deadlock should be impossible. But if necessary, the two
6448 * mutexes could be combined.
6450 * Actually, the two macros just below with the '_V' suffixes are used in just
6451 * a few places where there is a broken localeconv(), but otherwise things are
6452 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6453 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6454 # define LOCALE_LOCK_V \
6456 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6457 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6458 MUTEX_LOCK(&PL_locale_mutex); \
6460 # define LOCALE_UNLOCK_V \
6462 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6463 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6464 MUTEX_UNLOCK(&PL_locale_mutex); \
6467 /* On windows, we just need the mutex for LOCALE_LOCK */
6468 # ifdef TS_W32_BROKEN_LOCALECONV
6469 # define LOCALE_LOCK NOOP
6470 # define LOCALE_UNLOCK NOOP
6471 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6472 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6473 # define LC_NUMERIC_LOCK(cond)
6474 # define LC_NUMERIC_UNLOCK
6476 # define LOCALE_LOCK LOCALE_LOCK_V
6477 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6479 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6481 # define LOCALE_INIT STMT_START { \
6482 MUTEX_INIT(&PL_locale_mutex); \
6483 MUTEX_INIT(&PL_lc_numeric_mutex); \
6486 # define LOCALE_TERM STMT_START { \
6487 MUTEX_DESTROY(&PL_locale_mutex); \
6488 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6489 _LOCALE_TERM_POSIX_2008; \
6492 /* This mutex is used to create critical sections where we want the
6493 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6494 * the underlying locale, so that other threads interrupting this one don't
6495 * change it to the wrong state before we've had a chance to complete our
6496 * operation. It can stay locked over an entire printf operation, for
6497 * example. And so is made distinct from the LOCALE_LOCK mutex.
6499 * This simulates kind of a general semaphore. The current thread will
6500 * lock the mutex if the per-thread variable is zero, and then increments
6501 * that variable. Each corresponding UNLOCK decrements the variable until
6502 * it is 0, at which point it actually unlocks the mutex. Since the
6503 * variable is per-thread, there is no race with other threads.
6505 * The single argument is a condition to test for, and if true, to panic,
6506 * as this would be an attempt to complement the LC_NUMERIC state, and
6507 * we're not supposed to because it's locked.
6509 * Clang improperly gives warnings for this, if not silenced:
6510 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6512 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6513 CLANG_DIAG_IGNORE(-Wthread-safety) \
6515 if (PL_lc_numeric_mutex_depth <= 0) { \
6516 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6517 PL_lc_numeric_mutex_depth = 1; \
6518 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6519 "%s: %d: locking lc_numeric; depth=1\n", \
6520 __FILE__, __LINE__)); \
6523 PL_lc_numeric_mutex_depth++; \
6524 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6525 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6526 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6527 if (cond_to_panic_if_already_locked) { \
6528 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6529 " LC_NUMERIC incompatibly", \
6530 __FILE__, __LINE__); \
6535 # define LC_NUMERIC_UNLOCK \
6537 if (PL_lc_numeric_mutex_depth <= 1) { \
6538 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6539 PL_lc_numeric_mutex_depth = 0; \
6540 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6541 "%s: %d: unlocking lc_numeric; depth=0\n", \
6542 __FILE__, __LINE__)); \
6545 PL_lc_numeric_mutex_depth--; \
6546 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6547 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6548 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6553 # endif /* End of needs locking LC_NUMERIC */
6554 #else /* Below is no locale sync needed */
6555 # define LOCALE_INIT
6556 # define LOCALE_LOCK
6557 # define LOCALE_LOCK_V
6558 # define LOCALE_UNLOCK
6559 # define LOCALE_UNLOCK_V
6560 # define LC_NUMERIC_LOCK(cond)
6561 # define LC_NUMERIC_UNLOCK
6562 # define LOCALE_TERM
6565 #ifdef USE_LOCALE_NUMERIC
6567 /* These macros are for toggling between the underlying locale (UNDERLYING or
6568 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6569 * locale if the underlying locale is indistinguishable from it in the numeric
6570 * operations used by Perl, namely the decimal point, and even the thousands
6573 =head1 Locale-related functions and macros
6575 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6577 This macro should be used as a statement. It declares a private variable
6578 (whose name begins with an underscore) that is needed by the other macros in
6579 this section. Failing to include this correctly should lead to a syntax error.
6580 For compatibility with C89 C compilers it should be placed in a block before
6581 any executable statements.
6583 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6585 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
6586 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6587 underlying locale. (The perl interpreter could be wrong about what the
6588 underlying locale actually is if some C or XS code has called the C library
6589 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6590 this macro will update perl's records.)
6592 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6593 declare at compile time a private variable used by this macro. This macro
6594 should be called as a single statement, not an expression, but with an empty
6595 argument list, like this:
6598 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6600 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6602 RESTORE_LC_NUMERIC();
6606 The private variable is used to save the current locale state, so
6607 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6609 On threaded perls not operating with thread-safe functionality, this macro uses
6610 a mutex to force a critical section. Therefore the matching RESTORE should be
6611 close by, and guaranteed to be called.
6613 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6615 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6616 This locale category is generally kept set to a locale where the decimal radix
6617 character is a dot, and the separator between groups of digits is empty. This
6618 is because most XS code that reads floating point numbers is expecting them to
6621 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6622 aware of locale if the call to the XS or C code from the Perl program is
6623 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6624 instead from outside such scope.
6626 This macro is the start of wrapping the C or XS code; the wrap ending is done
6627 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6628 the state can be changed that will adversely affect other XS code.
6630 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6631 declare at compile time a private variable used by this macro. This macro
6632 should be called as a single statement, not an expression, but with an empty
6633 argument list, like this:
6636 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6638 STORE_LC_NUMERIC_SET_TO_NEEDED();
6640 RESTORE_LC_NUMERIC();
6644 On threaded perls not operating with thread-safe functionality, this macro uses
6645 a mutex to force a critical section. Therefore the matching RESTORE should be
6646 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6647 for a more contained way to ensure that.
6649 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6651 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6652 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6653 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6654 cannot have changed since the precalculation.
6656 =for apidoc Am|void|RESTORE_LC_NUMERIC
6658 This is used in conjunction with one of the macros
6659 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6660 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6661 C<LC_NUMERIC> state.
6663 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6664 declare at compile time a private variable used by this macro and the two
6665 C<STORE> ones. This macro should be called as a single statement, not an
6666 expression, but with an empty argument list, like this:
6669 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6671 RESTORE_LC_NUMERIC();
6675 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6677 This macro invokes the supplied statement or block within the context
6678 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6681 WITH_LC_NUMERIC_SET_TO_NEEDED(
6682 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6688 #ifdef USE_LOCALE_NUMERIC
6689 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6690 STORE_LC_NUMERIC_SET_TO_NEEDED();
6692 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6693 #ifdef USE_LOCALE_NUMERIC
6694 RESTORE_LC_NUMERIC();
6698 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6700 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6701 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6702 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6703 cannot have changed since the precalculation.
6709 /* If the underlying numeric locale has a non-dot decimal point or has a
6710 * non-empty floating point thousands separator, the current locale is instead
6711 * generally kept in the C locale instead of that underlying locale. The
6712 * current status is known by looking at two words. One is non-zero if the
6713 * current numeric locale is the standard C/POSIX one or is indistinguishable
6714 * from C. The other is non-zero if the current locale is the underlying
6715 * locale. Both can be non-zero if, as often happens, the underlying locale is
6716 * C or indistinguishable from it.
6718 * khw believes the reason for the variables instead of the bits in a single
6719 * word is to avoid having to have masking instructions. */
6721 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6723 /* We can lock the category to stay in the C locale, making requests to the
6724 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6726 # define _NOT_IN_NUMERIC_UNDERLYING \
6727 (! PL_numeric_underlying && PL_numeric_standard < 2)
6729 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6730 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6732 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6734 bool _in_lc_numeric = (in); \
6736 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6737 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6738 if (_in_lc_numeric) { \
6739 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6740 Perl_set_numeric_underlying(aTHX); \
6741 _restore_LC_NUMERIC_function \
6742 = &Perl_set_numeric_standard; \
6746 if (_NOT_IN_NUMERIC_STANDARD) { \
6747 Perl_set_numeric_standard(aTHX); \
6748 _restore_LC_NUMERIC_function \
6749 = &Perl_set_numeric_underlying; \
6754 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6755 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6757 # define RESTORE_LC_NUMERIC() \
6759 if (_restore_LC_NUMERIC_function) { \
6760 _restore_LC_NUMERIC_function(aTHX); \
6762 LC_NUMERIC_UNLOCK; \
6765 /* The next two macros set unconditionally. These should be rarely used, and
6766 * only after being sure that this is what is needed */
6767 # define SET_NUMERIC_STANDARD() \
6769 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6770 "%s: %d: lc_numeric standard=%d\n", \
6771 __FILE__, __LINE__, PL_numeric_standard)); \
6772 Perl_set_numeric_standard(aTHX); \
6773 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6774 "%s: %d: lc_numeric standard=%d\n", \
6775 __FILE__, __LINE__, PL_numeric_standard)); \
6778 # define SET_NUMERIC_UNDERLYING() \
6780 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6781 Perl_set_numeric_underlying(aTHX); \
6785 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6786 * the RESTORE_foo ones called to switch back, but only if need be */
6787 # define STORE_LC_NUMERIC_SET_STANDARD() \
6789 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6790 if (_NOT_IN_NUMERIC_STANDARD) { \
6791 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6792 Perl_set_numeric_standard(aTHX); \
6796 /* Rarely, we want to change to the underlying locale even outside of 'use
6797 * locale'. This is principally in the POSIX:: functions */
6798 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6800 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6801 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6802 Perl_set_numeric_underlying(aTHX); \
6803 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6807 /* Lock/unlock to the C locale until unlock is called. This needs to be
6808 * recursively callable. [perl #128207] */
6809 # define LOCK_LC_NUMERIC_STANDARD() \
6811 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6812 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6813 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6814 __ASSERT_(PL_numeric_standard) \
6815 PL_numeric_standard++; \
6818 # define UNLOCK_LC_NUMERIC_STANDARD() \
6820 if (PL_numeric_standard > 1) { \
6821 PL_numeric_standard--; \
6826 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6827 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6828 __FILE__, __LINE__, PL_numeric_standard)); \
6831 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6833 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6834 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6836 RESTORE_LC_NUMERIC(); \
6839 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6840 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6842 #else /* !USE_LOCALE_NUMERIC */
6844 # define SET_NUMERIC_STANDARD()
6845 # define SET_NUMERIC_UNDERLYING()
6846 # define IS_NUMERIC_RADIX(a, b) (0)
6847 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
6848 # define STORE_LC_NUMERIC_SET_STANDARD()
6849 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6850 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6851 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6852 # define RESTORE_LC_NUMERIC()
6853 # define LOCK_LC_NUMERIC_STANDARD()
6854 # define UNLOCK_LC_NUMERIC_STANDARD()
6855 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6856 STMT_START { block; } STMT_END
6857 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6858 STMT_START { block; } STMT_END
6860 #endif /* !USE_LOCALE_NUMERIC */
6862 #define Atof my_atof
6866 =head1 Numeric functions
6868 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6870 This is a synonym for L</my_strtod>.
6872 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6874 Platform and configuration independent C<strtol>. This expands to the
6875 appropriate C<strotol>-like function based on the platform and F<Configure>
6876 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6879 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6881 Platform and configuration independent C<strtoul>. This expands to the
6882 appropriate C<strotoul>-like function based on the platform and F<Configure>
6883 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6890 #define Strtod my_strtod
6892 #if defined(HAS_STRTOD) \
6893 || defined(USE_QUADMATH) \
6894 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6895 && defined(USE_LONG_DOUBLE))
6896 # define Perl_strtod Strtod
6899 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6900 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6902 # define strtoll __strtoll /* secret handshake */
6904 # if defined(WIN64) && defined(_MSC_VER)
6905 # define strtoll _strtoi64 /* secret handshake */
6907 # if !defined(Strtol) && defined(HAS_STRTOLL)
6908 # define Strtol strtoll
6910 # if !defined(Strtol) && defined(HAS_STRTOQ)
6911 # define Strtol strtoq
6913 /* is there atoq() anywhere? */
6915 #if !defined(Strtol) && defined(HAS_STRTOL)
6916 # define Strtol strtol
6919 /* It would be more fashionable to use Strtol() to define atol()
6920 * (as is done for Atoul(), see below) but for backward compatibility
6921 * we just assume atol(). */
6922 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6923 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6925 # define atoll _atoi64 /* secret handshake */
6933 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6934 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6936 # define strtoull __strtoull /* secret handshake */
6938 # if defined(WIN64) && defined(_MSC_VER)
6939 # define strtoull _strtoui64 /* secret handshake */
6941 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6942 # define Strtoul strtoull
6944 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6945 # define Strtoul strtouq
6947 /* is there atouq() anywhere? */
6949 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6950 # define Strtoul strtoul
6952 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6953 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6956 # define Atoul(s) Strtoul(s, NULL, 10)
6959 #define grok_bin(s,lp,fp,rp) \
6960 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6961 #define grok_oct(s,lp,fp,rp) \
6962 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6963 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6964 #define grok_hex(s,lp,fp,rp) \
6965 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6967 #ifndef PERL_SCRIPT_MODE
6968 #define PERL_SCRIPT_MODE "r"
6971 /* not used. Kept as a NOOP for backcompat */
6972 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6975 * Some nonpreemptive operating systems find it convenient to
6976 * check for asynchronous conditions after each op execution.
6977 * Keep this check simple, or it may slow down execution
6982 # ifndef PERL_ASYNC_CHECK
6983 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6987 #ifndef PERL_ASYNC_CHECK
6988 # define PERL_ASYNC_CHECK() NOOP
6992 * On some operating systems, a memory allocation may succeed,
6993 * but put the process too close to the system's comfort limit.
6994 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6997 #ifndef PERL_ALLOC_CHECK
6998 #define PERL_ALLOC_CHECK(p) NOOP
7002 # include <sys/ipc.h>
7003 # include <sys/sem.h>
7004 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
7007 struct semid_ds *buf;
7008 unsigned short *array;
7011 # ifdef USE_SEMCTL_SEMUN
7012 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
7013 union gccbug_semun {
7015 struct semid_ds *buf;
7016 unsigned short *array;
7019 # define semun gccbug_semun
7021 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
7022 # elif defined(USE_SEMCTL_SEMID_DS)
7023 # ifdef EXTRA_F_IN_SEMUN_BUF
7024 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
7026 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
7032 * Boilerplate macros for initializing and accessing interpreter-local
7033 * data from C. All statics in extensions should be reworked to use
7034 * this, if you want to make the extension thread-safe. See
7035 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
7036 * and perlxs.pod for more.
7038 * Code that uses these macros is responsible for the following:
7039 * 1. #define MY_CXT_KEY to a unique string, e.g.
7040 * "DynaLoader::_guts" XS_VERSION
7041 * XXX in the current implementation, this string is ignored.
7042 * 2. Declare a typedef named my_cxt_t that is a structure that contains
7043 * all the data that needs to be interpreter-local.
7044 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
7045 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
7046 * (typically put in the BOOT: section).
7047 * 5. Use the members of the my_cxt_t structure everywhere as
7049 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
7053 #if defined(PERL_IMPLICIT_CONTEXT)
7055 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
7056 * right after the definition (i.e. at file scope). The non-threads
7057 * case below uses it to declare the data as static. */
7058 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
7059 # define START_MY_CXT
7060 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
7061 # define MY_CXT_INIT_ARG MY_CXT_KEY
7063 # define START_MY_CXT static int my_cxt_index = -1;
7064 # define MY_CXT_INDEX my_cxt_index
7065 # define MY_CXT_INIT_ARG &my_cxt_index
7066 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
7068 /* Creates and zeroes the per-interpreter data.
7069 * (We allocate my_cxtp in a Perl SV so that it will be released when
7070 * the interpreter goes away.) */
7071 # define MY_CXT_INIT \
7072 my_cxt_t *my_cxtp = \
7073 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7074 PERL_UNUSED_VAR(my_cxtp)
7075 # define MY_CXT_INIT_INTERP(my_perl) \
7076 my_cxt_t *my_cxtp = \
7077 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7078 PERL_UNUSED_VAR(my_cxtp)
7080 /* This declaration should be used within all functions that use the
7081 * interpreter-local data. */
7083 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7084 # define dMY_CXT_INTERP(my_perl) \
7085 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7087 /* Clones the per-interpreter data. */
7088 # define MY_CXT_CLONE \
7089 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7090 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7091 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7092 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7096 /* This macro must be used to access members of the my_cxt_t structure.
7097 * e.g. MY_CXT.some_data */
7098 # define MY_CXT (*my_cxtp)
7100 /* Judicious use of these macros can reduce the number of times dMY_CXT
7101 * is used. Use is similar to pTHX, aTHX etc. */
7102 # define pMY_CXT my_cxt_t *my_cxtp
7103 # define pMY_CXT_ pMY_CXT,
7104 # define _pMY_CXT ,pMY_CXT
7105 # define aMY_CXT my_cxtp
7106 # define aMY_CXT_ aMY_CXT,
7107 # define _aMY_CXT ,aMY_CXT
7109 #else /* PERL_IMPLICIT_CONTEXT */
7111 # define START_MY_CXT static my_cxt_t my_cxt;
7112 # define dMY_CXT_SV dNOOP
7113 # define dMY_CXT dNOOP
7114 # define dMY_CXT_INTERP(my_perl) dNOOP
7115 # define MY_CXT_INIT NOOP
7116 # define MY_CXT_CLONE NOOP
7117 # define MY_CXT my_cxt
7119 # define pMY_CXT void
7126 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
7137 # undef FD_CLOEXEC /* a lie in AmigaOS */
7141 # include <sys/file.h>
7144 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7145 EXTERN_C int flock(int fd, int op);
7149 /* Assume UNIX defaults */
7150 # define O_RDONLY 0000
7151 # define O_WRONLY 0001
7152 # define O_RDWR 0002
7153 # define O_CREAT 0100
7164 #if O_TEXT != O_BINARY
7165 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7166 * that is, you are somehow DOSish. */
7167 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7168 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7169 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7170 /* VOS has O_TEXT != O_BINARY, and they have effect,
7171 * but VOS always uses LF, never CRLF. */
7172 /* If you have O_TEXT different from your O_BINARY but you still are
7173 * not a CRLF shop. */
7174 # undef PERLIO_USING_CRLF
7176 /* If you really are DOSish. */
7177 # define PERLIO_USING_CRLF 1
7182 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7185 #ifndef EXEC_ARGV_CAST
7186 #define EXEC_ARGV_CAST(x) (char **)x
7189 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7190 int). value returned in pointed-
7192 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7193 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7194 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7195 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7196 #define IS_NUMBER_NAN 0x20 /* this is not */
7197 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7200 =head1 Numeric functions
7202 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7204 A synonym for L</grok_numeric_radix>
7208 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7210 /* Number scan flags. All are used for input, the ones used for output are so
7212 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7213 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7215 /* grok_??? input: ignored; output: found overflow */
7216 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7218 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7219 * this isn't set on output if one is found. Instead, see
7220 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7221 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7223 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7224 and set IS_NUMBER_TRAILING */
7226 /* These are considered experimental, so not exposed publicly */
7227 #if defined(PERL_CORE) || defined(PERL_EXT)
7228 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7229 * output: found such a number */
7230 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7232 /* If this is set on input, and no illegal digit is found, it will be cleared
7233 * on output; otherwise unchanged */
7234 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7236 /* Don't warn on overflow; output flag still set */
7237 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7239 /* Forbid a leading underscore, which the other one doesn't */
7240 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7244 /* to let user control profiling */
7245 #ifdef PERL_GPROF_CONTROL
7246 extern void moncontrol(int);
7247 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7249 #define PERL_GPROF_MONCONTROL(x)
7252 /* ISO 6429 NEL - C1 control NExt Line */
7253 /* See https://www.unicode.org/unicode/reports/tr13/ */
7254 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7256 #ifndef PIPESOCK_MODE
7257 # define PIPESOCK_MODE
7260 #ifndef SOCKET_OPEN_MODE
7261 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7264 #ifndef PIPE_OPEN_MODE
7265 # define PIPE_OPEN_MODE PIPESOCK_MODE
7268 #define PERL_MAGIC_UTF8_CACHESIZE 2
7270 #define PERL_UNICODE_STDIN_FLAG 0x0001
7271 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7272 #define PERL_UNICODE_STDERR_FLAG 0x0004
7273 #define PERL_UNICODE_IN_FLAG 0x0008
7274 #define PERL_UNICODE_OUT_FLAG 0x0010
7275 #define PERL_UNICODE_ARGV_FLAG 0x0020
7276 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7277 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7278 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7280 #define PERL_UNICODE_STD_FLAG \
7281 (PERL_UNICODE_STDIN_FLAG | \
7282 PERL_UNICODE_STDOUT_FLAG | \
7283 PERL_UNICODE_STDERR_FLAG)
7285 #define PERL_UNICODE_INOUT_FLAG \
7286 (PERL_UNICODE_IN_FLAG | \
7287 PERL_UNICODE_OUT_FLAG)
7289 #define PERL_UNICODE_DEFAULT_FLAGS \
7290 (PERL_UNICODE_STD_FLAG | \
7291 PERL_UNICODE_INOUT_FLAG | \
7292 PERL_UNICODE_LOCALE_FLAG)
7294 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7296 #define PERL_UNICODE_STDIN 'I'
7297 #define PERL_UNICODE_STDOUT 'O'
7298 #define PERL_UNICODE_STDERR 'E'
7299 #define PERL_UNICODE_STD 'S'
7300 #define PERL_UNICODE_IN 'i'
7301 #define PERL_UNICODE_OUT 'o'
7302 #define PERL_UNICODE_INOUT 'D'
7303 #define PERL_UNICODE_ARGV 'A'
7304 #define PERL_UNICODE_LOCALE 'L'
7305 #define PERL_UNICODE_WIDESYSCALLS 'W'
7306 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7308 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7311 =head1 Numeric functions
7313 =for apidoc Am|int|PERL_ABS|int
7315 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7316 integers, but it works for any type.) Use instead of these, since the C
7317 library ones force their argument to be what it is expecting, potentially
7318 leading to disaster. But also beware that this evaluates its argument twice,
7324 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7326 #if defined(__DECC) && defined(__osf__)
7327 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7330 #define do_open(g, n, l, a, rm, rp, sf) \
7331 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7332 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7333 # define do_exec(cmd) do_exec3(cmd,0,0)
7336 # define do_aexec Perl_do_aexec
7338 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7343 =head1 Miscellaneous Functions
7345 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7347 Same as L</is_safe_syscall>.
7351 Allows one ending \0
7353 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7355 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7357 #if defined(OEMVS) || defined(__amigaos4__)
7358 #define NO_ENV_ARRAY_IN_MAIN
7361 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7362 * are here so that they are available throughout the core
7363 * NOTE that even though some are for _escape and some for _pretty
7364 * there must not be any clashes as the flags from _pretty are
7365 * passed straight through to _escape.
7368 #define PERL_PV_ESCAPE_QUOTE 0x000001
7369 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7371 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7372 #define PERL_PV_PRETTY_LTGT 0x000004
7373 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7375 #define PERL_PV_ESCAPE_UNI 0x000100
7376 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7377 #define PERL_PV_ESCAPE_NONASCII 0x000400
7378 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7380 #define PERL_PV_ESCAPE_ALL 0x001000
7381 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7382 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7383 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7384 #define PERL_PV_ESCAPE_RE 0x008000
7386 #define PERL_PV_ESCAPE_DWIM 0x010000
7389 /* used by pv_display in dump.c*/
7390 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7391 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7393 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7394 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7395 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7396 # define DOUBLE_IS_VAX_FLOAT
7398 # define DOUBLE_IS_IEEE_FORMAT
7401 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7402 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7403 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7404 # define DOUBLE_LITTLE_ENDIAN
7407 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7408 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7409 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7410 # define DOUBLE_BIG_ENDIAN
7413 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7414 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7415 # define DOUBLE_MIX_ENDIAN
7418 /* The VAX fp formats are neither consistently little-endian nor
7419 * big-endian, and neither are they really IEEE-mixed endian like
7420 * the mixed-endian ARM IEEE formats (with swapped bytes).
7421 * Ultimately, the VAX format came from the PDP-11.
7423 * The ordering of the parts in VAX floats is quite vexing.
7424 * In the below the fraction_n are the mantissa bits.
7426 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7427 * while the rightmost bit in each fraction is the least significant:
7428 * in other words, big-endian bit order within the fractions.
7430 * The fraction segments themselves would be big-endianly, except that
7431 * within 32 bit segments the less significant half comes first, the more
7432 * significant after, except that in the format H (used for long doubles)
7433 * the first fraction segment is alone, because the exponent is wider.
7434 * This means for example that both the most and the least significant
7435 * bits can be in the middle of the floats, not at either end.
7438 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7439 * http://www.quadibloc.com/comp/cp0201.htm
7440 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7441 * (somebody at HP should be fired for the URLs)
7443 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7444 * (exponent bias 128, hidden first one-bit)
7446 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7447 * fraction_4:16 fraction_3:16
7448 * (exponent bias 128, hidden first one-bit)
7450 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7451 * fraction_4:16 fraction_3:16
7452 * (exponent bias 1024, hidden first one-bit)
7454 * H fraction_1:16 sign:1 exp:15
7455 * fraction_3:16 fraction_2:16
7456 * fraction_5:16 fraction_4:16
7457 * fraction_7:16 fraction_6:16
7458 * (exponent bias 16384, hidden first one-bit)
7459 * (available only on VAX, and only on Fortran?)
7461 * The formats S, T and X are available on the Alpha (and Itanium,
7462 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7463 * binary32, binary64, and binary128 (commonly: float, double, long double).
7465 * S sign:1 exp:8 mantissa:23
7466 * (exponent bias 127, hidden first one-bit)
7468 * T sign:1 exp:11 mantissa:52
7469 * (exponent bias 1022, hidden first one-bit)
7471 * X sign:1 exp:15 mantissa:112
7472 * (exponent bias 16382, hidden first one-bit)
7476 #ifdef DOUBLE_IS_VAX_FLOAT
7477 # define DOUBLE_VAX_ENDIAN
7480 #ifdef DOUBLE_IS_IEEE_FORMAT
7481 /* All the basic IEEE formats have the implicit bit,
7482 * except for the x86 80-bit extended formats, which will undef this.
7483 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7484 * do not have the implicit bit of one. */
7485 # define NV_IMPLICIT_BIT
7488 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7490 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7491 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7492 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7493 # define LONGDOUBLE_LITTLE_ENDIAN
7496 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7497 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7498 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7499 # define LONGDOUBLE_BIG_ENDIAN
7502 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7503 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7504 # define LONGDOUBLE_MIX_ENDIAN
7507 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7508 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7509 # define LONGDOUBLE_X86_80_BIT
7510 # ifdef USE_LONG_DOUBLE
7511 # undef NV_IMPLICIT_BIT
7512 # define NV_X86_80_BIT
7516 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7517 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7518 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7519 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7520 # define LONGDOUBLE_DOUBLEDOUBLE
7523 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7524 # define LONGDOUBLE_VAX_ENDIAN
7527 #endif /* LONG_DOUBLEKIND */
7529 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7530 # if defined(DOUBLE_LITTLE_ENDIAN)
7531 # define NV_LITTLE_ENDIAN
7532 # elif defined(DOUBLE_BIG_ENDIAN)
7533 # define NV_BIG_ENDIAN
7534 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7535 # define NV_MIX_ENDIAN
7537 #elif NVSIZE == DOUBLESIZE
7538 # ifdef DOUBLE_LITTLE_ENDIAN
7539 # define NV_LITTLE_ENDIAN
7541 # ifdef DOUBLE_BIG_ENDIAN
7542 # define NV_BIG_ENDIAN
7544 # ifdef DOUBLE_MIX_ENDIAN
7545 # define NV_MIX_ENDIAN
7547 # ifdef DOUBLE_VAX_ENDIAN
7548 # define NV_VAX_ENDIAN
7550 #elif NVSIZE == LONG_DOUBLESIZE
7551 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7552 # define NV_LITTLE_ENDIAN
7554 # ifdef LONGDOUBLE_BIG_ENDIAN
7555 # define NV_BIG_ENDIAN
7557 # ifdef LONGDOUBLE_MIX_ENDIAN
7558 # define NV_MIX_ENDIAN
7560 # ifdef LONGDOUBLE_VAX_ENDIAN
7561 # define NV_VAX_ENDIAN
7565 /* We have somehow managed not to define the denormal/subnormal
7568 * This may happen if the compiler doesn't expose the C99 math like
7569 * the fpclassify() without some special switches. Perl tries to
7570 * stay C89, so for example -std=c99 is not an option.
7572 * The Perl_isinf() and Perl_isnan() should have been defined even if
7573 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7574 * from the C89 DBL_MIN or moral equivalent. */
7575 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7576 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7579 /* This is not a great fallback: subnormals tests will fail,
7580 * but at least Perl will link and 99.999% of tests will work. */
7581 #if !defined(Perl_fp_class_denorm)
7582 # define Perl_fp_class_denorm(x) FALSE
7585 #ifdef DOUBLE_IS_IEEE_FORMAT
7586 # define DOUBLE_HAS_INF
7587 # define DOUBLE_HAS_NAN
7590 #ifdef DOUBLE_HAS_NAN
7596 /* PL_inf and PL_nan initialization.
7598 * For inf and nan initialization the ultimate fallback is dividing
7599 * one or zero by zero: however, some compilers will warn or even fail
7600 * on divide-by-zero, but hopefully something earlier will work.
7602 * If you are thinking of using HUGE_VAL for infinity, or using
7603 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7604 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7605 * and the math functions might be just generating DBL_MAX, or even zero.
7607 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7608 * Though logically correct, some compilers (like Visual C 2003)
7609 * falsely misoptimize that to zero (x-x is always zero, right?)
7611 * Finally, note that not all floating point formats define Inf (or NaN).
7612 * For the infinity a large number may be used instead. Operations that
7613 * under the IEEE floating point would return Inf or NaN may return
7614 * either large numbers (positive or negative), or they may cause
7615 * a floating point exception or some other fault.
7618 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7619 # ifndef USE_CPLUSPLUS
7620 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7623 # ifdef USE_QUADMATH
7624 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7626 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7627 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7628 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7629 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7630 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7632 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7633 # if defined(LDBL_INFINITY)
7634 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7635 # elif defined(LDBL_INF)
7636 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7637 # elif defined(INFINITY)
7638 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7640 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7642 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7645 # if defined(DBL_INFINITY)
7646 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7647 # elif defined(DBL_INF)
7648 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7649 # elif defined(INFINITY) /* C99 */
7650 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7652 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7654 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7659 # ifdef USE_QUADMATH
7660 /* Cannot use nanq("0") for PL_nan because not a compile-time
7662 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7663 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7664 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7665 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7666 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7668 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7669 # if defined(LDBL_NAN)
7670 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7671 # elif defined(LDBL_QNAN)
7672 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7674 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7676 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7679 # if defined(DBL_NAN)
7680 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7681 # elif defined(DBL_QNAN)
7682 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7683 # elif defined(NAN) /* C99 */
7684 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7686 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7691 # ifndef USE_CPLUSPLUS
7692 GCC_DIAG_RESTORE_DECL;
7697 INFNAN_NV_U8_DECL PL_inf;
7698 INFNAN_NV_U8_DECL PL_nan;
7704 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7705 * we will define NV_INF/NV_NAN as the nv part of the global const
7706 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7707 * might not be a compile-time constant, in which case it cannot be
7708 * used to initialize PL_inf/PL_nan above. */
7710 # define NV_INF PL_inf.nv
7713 # define NV_NAN PL_nan.nv
7716 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7717 * "nan-ness". Part of the payload is the quiet/signaling bit.
7718 * To back up a bit (harhar):
7720 * For IEEE 754 64-bit formats [1]:
7722 * s 000 (mantissa all-zero) zero
7723 * s 000 (mantissa non-zero) subnormals (denormals)
7724 * s 001 ... 7fe normals
7727 * For IEEE 754 128-bit formats:
7729 * s 0000 (mantissa all-zero) zero
7730 * s 0000 (mantissa non-zero) subnormals (denormals)
7731 * s 0001 ... 7ffe normals
7734 * [1] this looks like big-endian, but applies equally to little-endian.
7736 * s = Sign bit. Yes, zeros and nans can have negative sign,
7737 * the interpretation is application-specific.
7739 * q = Quietness bit, the interpretation is platform-specific.
7740 * Most platforms have the most significant bit being one
7741 * meaning quiet, but some (older mips, hppa) have the msb
7742 * being one meaning signaling. Note that the above means
7743 * that on most platforms there cannot be signaling nan with
7744 * zero payload because that is identical with infinity;
7745 * while conversely on older mips/hppa there cannot be a quiet nan
7746 * because that is identical with infinity.
7748 * Moreover, whether there is any behavioral difference
7749 * between quiet and signaling NaNs, depends on the platform.
7751 * x86 80-bit extended precision is different, the mantissa bits:
7753 * 63 62 61 30387+ pre-387 visual c
7754 * -------- ---- -------- --------
7755 * 0 0 0 invalid infinity
7756 * 0 0 1 invalid snan
7757 * 0 1 0 invalid snan
7758 * 0 1 1 invalid snan
7759 * 1 0 0 infinity snan 1.#INF
7760 * 1 0 1 snan 1.#SNAN
7761 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7762 * 1 1 1 qnan 1.#QNAN
7764 * This means that in this format there are 61 bits available
7765 * for the nan payload.
7767 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7768 * simply cannot preserve the bit. You can either use the 80-bit
7769 * extended precision (long double, -Duselongdouble), or use x86-64.
7771 * In all platforms, the payload bytes (and bits, some of them are
7772 * often in a partial byte) themselves can be either all zero (x86),
7773 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7774 * or in a double-double, the first half of the payload can follow the
7775 * native double, while in the second half the payload can be all
7776 * zeros. (Therefore the mask for payload bits is not necessarily
7777 * identical to bit complement of the NaN.) Another way of putting
7778 * this: the payload for the default NaN might not be zero.
7780 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7781 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7784 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7785 * On normal floats, the sign bit being on means negative. But this may,
7786 * or may not, be reverted on NaNs: in other words, the default NaN might
7787 * have the sign bit on, and therefore look like negative if you look
7788 * at it at the bit level.
7790 * NaN payloads are not propagated even on copies, or in arithmetics.
7791 * They *might* be, according to some rules, on your particular
7792 * cpu/os/compiler/libraries, but no guarantees.
7794 * To summarize, on most platforms, and for 64-bit doubles
7795 * (using big-endian ordering here):
7797 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7798 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7799 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7800 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7802 * The C99 nan() is supposed to generate *quiet* NaNs.
7804 * Note the asymmetry:
7805 * The 7FF0000000000000 is positive infinity,
7806 * the FFF0000000000000 is negative infinity.
7809 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7810 * For the standard IEEE 754 fp this number is usually one less that
7811 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7812 * real. For the 80-bit extended precision formats (x86*), the number
7813 * of mantissa bits... depends. For normal floats, it's 64. But for
7814 * the inf/nan, it's different (zero for inf, 61 for nan).
7815 * NVMANTBITS works for normal floats. */
7817 /* We do not want to include the quiet/signaling bit. */
7818 #define NV_NAN_BITS (NVMANTBITS - 1)
7820 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7821 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7822 # define NV_NAN_QS_BYTE_OFFSET 13
7823 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7824 # define NV_NAN_QS_BYTE_OFFSET 2
7825 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7826 # define NV_NAN_QS_BYTE_OFFSET 7
7827 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7828 # define NV_NAN_QS_BYTE_OFFSET 2
7829 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7830 # define NV_NAN_QS_BYTE_OFFSET 13
7831 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7832 # define NV_NAN_QS_BYTE_OFFSET 1
7833 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7834 # define NV_NAN_QS_BYTE_OFFSET 9
7835 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7836 # define NV_NAN_QS_BYTE_OFFSET 6
7838 # error "Unexpected long double format"
7841 # ifdef USE_QUADMATH
7842 # ifdef NV_LITTLE_ENDIAN
7843 # define NV_NAN_QS_BYTE_OFFSET 13
7844 # elif defined(NV_BIG_ENDIAN)
7845 # define NV_NAN_QS_BYTE_OFFSET 2
7847 # error "Unexpected quadmath format"
7849 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7850 # define NV_NAN_QS_BYTE_OFFSET 2
7851 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7852 # define NV_NAN_QS_BYTE_OFFSET 1
7853 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7854 # define NV_NAN_QS_BYTE_OFFSET 6
7855 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7856 # define NV_NAN_QS_BYTE_OFFSET 1
7857 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7858 # define NV_NAN_QS_BYTE_OFFSET 13
7859 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7860 # define NV_NAN_QS_BYTE_OFFSET 2
7861 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7862 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7863 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7864 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7866 /* For example the VAX formats should never
7867 * get here because they do not have NaN. */
7868 # error "Unexpected double format"
7871 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7872 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7873 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7874 * for the quiet/signaling */
7875 #if defined(USE_LONG_DOUBLE) && \
7876 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7877 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7878 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7879 #elif defined(USE_LONG_DOUBLE) && \
7880 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7881 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7882 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7883 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7884 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7886 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7888 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7889 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7890 * (bytes ordered big-endianly) for the quiet/signaling bit
7891 * for the quiet/signaling */
7892 #define NV_NAN_QS_BIT_OFFSET \
7893 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7894 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7895 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7896 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7897 #define NV_NAN_QS_QUIET \
7898 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7899 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7900 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7901 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7902 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7903 * Note however that these do not check whether the nvp is a NaN. */
7904 #define NV_NAN_IS_QUIET(nvp) \
7905 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7906 #define NV_NAN_IS_SIGNALING(nvp) \
7907 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7908 #define NV_NAN_SET_QUIET(nvp) \
7909 (NV_NAN_QS_QUIET ? \
7910 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7911 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7912 #define NV_NAN_SET_SIGNALING(nvp) \
7913 (NV_NAN_QS_QUIET ? \
7914 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7915 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7916 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7918 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7920 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7921 * 0xFF means "don't go here".*/
7923 /* Shorthands to avoid typoses. */
7924 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7925 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7926 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7927 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7928 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7929 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7930 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7931 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7932 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7933 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7934 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7935 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7936 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7937 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7938 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7939 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7940 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7941 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7942 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7943 NV_NAN_PAYLOAD_PERM_7_TO_0
7944 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7945 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7946 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7947 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7948 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7949 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7950 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7951 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7953 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7954 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7955 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7956 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7957 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7958 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7959 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7960 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7961 # if LONG_DOUBLESIZE == 10
7962 # define NV_NAN_PAYLOAD_MASK \
7963 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7965 # define NV_NAN_PAYLOAD_PERM \
7966 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7967 # elif LONG_DOUBLESIZE == 12
7968 # define NV_NAN_PAYLOAD_MASK \
7969 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7970 0x00, 0x00, 0x00, 0x00
7971 # define NV_NAN_PAYLOAD_PERM \
7972 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7973 # elif LONG_DOUBLESIZE == 16
7974 # define NV_NAN_PAYLOAD_MASK \
7975 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7976 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7977 # define NV_NAN_PAYLOAD_PERM \
7978 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7979 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7981 # error "Unexpected x86 80-bit little-endian long double format"
7983 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7984 # if LONG_DOUBLESIZE == 10
7985 # define NV_NAN_PAYLOAD_MASK \
7986 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7988 # define NV_NAN_PAYLOAD_PERM \
7989 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7990 # elif LONG_DOUBLESIZE == 12
7991 # define NV_NAN_PAYLOAD_MASK \
7992 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7993 0xff, 0xff, 0x00, 0x00
7994 # define NV_NAN_PAYLOAD_PERM \
7995 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7996 # elif LONG_DOUBLESIZE == 16
7997 # define NV_NAN_PAYLOAD_MASK \
7998 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7999 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8000 # define NV_NAN_PAYLOAD_PERM \
8001 NV_NAN_PAYLOAD_PERM_7_TO_0, \
8002 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8004 # error "Unexpected x86 80-bit big-endian long double format"
8006 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8007 /* For double-double we assume only the first double (in LE or BE terms)
8008 * is used for NaN. */
8009 # define NV_NAN_PAYLOAD_MASK \
8010 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8011 # define NV_NAN_PAYLOAD_PERM \
8012 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8013 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8014 # define NV_NAN_PAYLOAD_MASK \
8015 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8016 # define NV_NAN_PAYLOAD_PERM \
8017 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8018 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8019 # define NV_NAN_PAYLOAD_MASK \
8020 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8021 # define NV_NAN_PAYLOAD_PERM \
8022 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8023 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8024 # define NV_NAN_PAYLOAD_MASK \
8025 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8026 # define NV_NAN_PAYLOAD_PERM \
8027 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8029 # error "Unexpected long double format"
8032 # ifdef USE_QUADMATH /* quadmath is not long double */
8033 # ifdef NV_LITTLE_ENDIAN
8034 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8035 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8036 # elif defined(NV_BIG_ENDIAN)
8037 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8038 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8040 # error "Unexpected quadmath format"
8042 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8043 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
8044 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
8045 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8046 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
8047 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
8048 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8049 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8050 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8051 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8052 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8053 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8054 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8055 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8056 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8057 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8058 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8059 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8060 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8061 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
8062 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
8063 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8064 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8065 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8067 # error "Unexpected double format"
8071 #endif /* DOUBLE_HAS_NAN */
8076 (KEEP THIS LAST IN perl.h!)
8118 so that Configure picks them up.
8120 (KEEP THIS LAST IN perl.h!)
8124 #endif /* Include guard */
8127 * ex: set ts=8 sts=4 sw=4 et: