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
926 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
927 * changes here MUST also be made there */
929 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
930 # define USE_POSIX_2008_LOCALE
931 # ifndef USE_THREAD_SAFE_LOCALE
932 # define USE_THREAD_SAFE_LOCALE
935 * -DUSE_THREAD_SAFE_LOCALE, will do so even
936 * on unthreaded builds */
937 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
938 && ( defined(HAS_POSIX_2008_LOCALE) \
939 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
940 && ! defined(NO_THREAD_SAFE_LOCALE)
941 # ifndef USE_THREAD_SAFE_LOCALE
942 # define USE_THREAD_SAFE_LOCALE
944 # ifdef HAS_POSIX_2008_LOCALE
945 # define USE_POSIX_2008_LOCALE
950 /* Microsoft documentation reads in the change log for VS 2015:
951 * "The localeconv function declared in locale.h now works correctly when
952 * per-thread locale is enabled. In previous versions of the library, this
953 * function would return the lconv data for the global locale, not the
956 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
957 # define TS_W32_BROKEN_LOCALECONV
963 # ifdef PARAM_NEEDS_TYPES
964 # include <sys/types.h>
966 # include <sys/param.h>
969 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
970 value something like 199306. This may be useful if no more-specific
971 feature test is available.
979 /* Use all the "standard" definitions */
982 /* If this causes problems, set i_unistd=undef in the hint file. */
984 # if defined(__amigaos4__)
986 # include <netinet/in.h>
990 # if defined(__amigaos4__)
991 /* Under AmigaOS 4 newlib.library provides an environ. However using
992 * it doesn't give us enough control over inheritance of variables by
993 * subshells etc. so replace with custom version based on abc-shell
995 extern char **myenviron;
997 # define environ myenviron
1003 # include <sys/wait.h>
1006 #ifdef __SYMBIAN32__
1007 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
1010 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1011 EXTERN_C int syscall(int, ...);
1014 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1015 EXTERN_C int usleep(unsigned int);
1018 /* macros for correct constant construction. These are in C99 <stdint.h>
1019 * (so they will not be available in strict C89 mode), but they are nice, so
1020 * let's define them if necessary. */
1023 # define UINT16_C(x) ((U16_TYPE)x##U)
1025 # define UINT16_C(x) ((U16_TYPE)x##UL)
1031 # define UINT32_C(x) ((U32_TYPE)x##U)
1033 # define UINT32_C(x) ((U32_TYPE)x##UL)
1038 typedef intmax_t PERL_INTMAX_T;
1039 typedef uintmax_t PERL_UINTMAX_T;
1042 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1043 * actually mean what it has always been documented to mean (see RT #119753)
1044 * and is explicitly turned off outside of core with dire warnings about
1045 * removing the undef. */
1047 #if defined(QUADKIND)
1048 # undef PeRl_INT64_C
1049 # undef PeRl_UINT64_C
1050 /* Prefer the native integer types (int and long) over long long
1051 * (which is not C89) and Win32-specific __int64. */
1052 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1053 # define PeRl_INT64_C(c) (c)
1054 # define PeRl_UINT64_C(c) CAT2(c,U)
1056 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1057 # define PeRl_INT64_C(c) CAT2(c,L)
1058 # define PeRl_UINT64_C(c) CAT2(c,UL)
1060 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1061 # define PeRl_INT64_C(c) CAT2(c,LL)
1062 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1064 # if QUADKIND == QUAD_IS___INT64
1065 # define PeRl_INT64_C(c) CAT2(c,I64)
1066 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1068 # ifndef PeRl_INT64_C
1069 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1070 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1072 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1073 * not fly with C89-pedantic gcc, so let's undefine them first so that
1074 * we can redefine them with our native integer preferring versions. */
1075 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1080 # define INT64_C(c) PeRl_INT64_C(c)
1083 # define UINT64_C(c) PeRl_UINT64_C(c)
1087 typedef I64TYPE PERL_INTMAX_T;
1088 typedef U64TYPE PERL_UINTMAX_T;
1091 # define INTMAX_C(c) INT64_C(c)
1094 # define UINTMAX_C(c) UINT64_C(c)
1097 #else /* below QUADKIND is undefined */
1099 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1101 typedef I32TYPE PERL_INTMAX_T;
1102 typedef U32TYPE PERL_UINTMAX_T;
1105 # define INTMAX_C(c) INT32_C(c)
1108 # define UINTMAX_C(c) UINT32_C(c)
1111 #endif /* no QUADKIND */
1115 /* byte-swapping functions for big-/little-endian conversion */
1116 # define _swab_16_(x) ((U16)( \
1117 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1118 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1120 # define _swab_32_(x) ((U32)( \
1121 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1122 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1123 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1124 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1127 # define _swab_64_(x) ((U64)( \
1128 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1129 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1130 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1131 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1132 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1133 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1134 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1135 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1138 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1139 at least on FreeBSD. YMMV, so experiment. */
1140 #ifndef PERL_ARENA_SIZE
1141 #define PERL_ARENA_SIZE 4080
1144 /* Maximum level of recursion */
1145 #ifndef PERL_SUB_DEPTH_WARN
1146 #define PERL_SUB_DEPTH_WARN 100
1149 #endif /* PERL_CORE */
1151 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1152 * It determines the size of local arrays in S_maybe_multiconcat() and
1155 #define PERL_MULTICONCAT_MAXARG 64
1157 /* The indexes of fields of a multiconcat aux struct.
1158 * The fixed fields are followed by nargs+1 const segment lengths,
1159 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1162 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1163 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1164 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1165 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1166 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1167 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1168 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1169 multiconcat header */
1171 /* We no longer default to creating a new SV for GvSV.
1172 Do this before embed. */
1173 #ifndef PERL_CREATE_GVSV
1174 # ifndef PERL_DONT_CREATE_GVSV
1175 # define PERL_DONT_CREATE_GVSV
1179 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1180 #define PERL_USES_PL_PIDSTATUS
1183 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
1184 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1187 #define MEM_SIZE Size_t
1189 /* Round all values passed to malloc up, by default to a multiple of
1192 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1193 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1196 /* sv_grow() will expand strings by at least a certain percentage of
1197 the previously *used* length to avoid excessive calls to realloc().
1198 The default is 25% of the current length.
1200 #ifndef PERL_STRLEN_EXPAND_SHIFT
1201 # define PERL_STRLEN_EXPAND_SHIFT 2
1204 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1205 * onwards) when building Socket.xs, but we can just use a different definition
1206 * for STRUCT_OFFSET instead. */
1207 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1208 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1210 # include <stddef.h>
1211 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1214 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1215 * in C89, but apparently there are platforms where it doesn't exist. See
1216 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1218 #ifdef PERL_GCC_PEDANTIC
1219 # undef HAS_PTRDIFF_T
1222 #ifdef HAS_PTRDIFF_T
1223 # define Ptrdiff_t ptrdiff_t
1225 # define Ptrdiff_t SSize_t
1228 #ifndef __SYMBIAN32__
1229 # include <string.h>
1232 /* This comes after <stdlib.h> so we don't try to change the standard
1233 * library prototypes; we'll use our own in proto.h instead. */
1236 # ifdef PERL_POLLUTE_MALLOC
1237 # ifndef PERL_EXTMALLOC_DEF
1238 # define Perl_malloc malloc
1239 # define Perl_calloc calloc
1240 # define Perl_realloc realloc
1241 # define Perl_mfree free
1244 # define EMBEDMYMALLOC /* for compatibility */
1247 # define safemalloc Perl_malloc
1248 # define safecalloc Perl_calloc
1249 # define saferealloc Perl_realloc
1250 # define safefree Perl_mfree
1251 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1252 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1255 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1256 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1257 # define panic_write2(s) write(2, s, strlen(s))
1258 # define CHECK_MALLOC_TAINT(newval) \
1259 CHECK_MALLOC_TOO_LATE_FOR_( \
1261 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1263 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1264 if (doing_taint(argc,argv,env)) { \
1265 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1267 #else /* MYMALLOC */
1268 # define safemalloc safesysmalloc
1269 # define safecalloc safesyscalloc
1270 # define saferealloc safesysrealloc
1271 # define safefree safesysfree
1272 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1273 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1274 # define MALLOC_CHECK_TAINT(argc,argv,env)
1275 #endif /* MYMALLOC */
1277 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1278 #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)
1279 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1280 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1281 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1284 # define memzero(d,l) memset(d,0,l)
1288 # include <netinet/in.h>
1292 # include <arpa/inet.h>
1296 # include <sys/stat.h>
1299 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1300 This definition should ideally go into win32/win32.h, but S_IFIFO is
1301 used later here in perl.h before win32/win32.h is being included. */
1302 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1303 # define S_IFIFO _S_IFIFO
1306 /* The stat macros for Unisoft System V/88 (and derivatives
1307 like UTekV) are broken, sometimes giving false positives. Undefine
1308 them here and let the code below set them to proper values.
1310 The ghs macro stands for GreenHills Software C-1.8.5 which
1311 is the C compiler for sysV88 and the various derivatives.
1312 This header file bug is corrected in gcc-2.5.8 and later versions.
1313 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1315 #if defined(m88k) && defined(ghs)
1327 # ifdef I_SYS_TIME_KERNEL
1330 # include <sys/time.h>
1331 # ifdef I_SYS_TIME_KERNEL
1336 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1337 # include <sys/times.h>
1342 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1343 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1346 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1347 # include <sys/socket.h>
1348 # if defined(USE_SOCKS) && defined(I_SOCKS)
1349 # if !defined(INCLUDE_PROTOTYPES)
1350 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1351 # define PERL_SOCKS_NEED_PROTOTYPES
1354 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1355 # undef INCLUDE_PROTOTYPES
1356 # undef PERL_SOCKS_NEED_PROTOTYPES
1367 # include <net/errno.h>
1372 /* sockatmark() is so new (2001) that many places might have it hidden
1373 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1374 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1375 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1376 # if defined(__THROW) && defined(__GLIBC__)
1377 int sockatmark(int) __THROW;
1379 int sockatmark(int);
1383 #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. */
1384 EXTERN_C int fchdir(int);
1385 EXTERN_C int flock(int, int);
1386 EXTERN_C int fseeko(FILE *, off_t, int);
1387 EXTERN_C off_t ftello(FILE *);
1390 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1391 EXTERN_C char *crypt(const char *, const char *);
1394 #if defined(__cplusplus) && defined(__CYGWIN__)
1395 EXTERN_C char *crypt(const char *, const char *);
1401 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1403 Set C<errno>, and on VMS set C<vaxc$errno>.
1405 =for apidoc mn|void|dSAVEDERRNO
1407 Declare variables needed to save C<errno> and any operating system
1408 specific error number.
1410 =for apidoc mn|void|dSAVE_ERRNO
1412 Declare variables needed to save C<errno> and any operating system
1413 specific error number, and save them for optional later restoration
1414 by C<RESTORE_ERRNO>.
1416 =for apidoc mn|void|SAVE_ERRNO
1418 Save C<errno> and any operating system specific error number for
1419 optional later restoration by C<RESTORE_ERRNO>. Requires
1420 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1422 =for apidoc mn|void|RESTORE_ERRNO
1424 Restore C<errno> and any operating system specific error number that
1425 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1431 # undef SETERRNO /* SOCKS might have defined this */
1435 # define SETERRNO(errcode,vmserrcode) \
1437 set_errno(errcode); \
1438 set_vaxc_errno(vmserrcode); \
1440 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1441 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1442 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1443 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1445 # define LIB_INVARG LIB$_INVARG
1446 # define RMS_DIR RMS$_DIR
1447 # define RMS_FAC RMS$_FAC
1448 # define RMS_FEX RMS$_FEX
1449 # define RMS_FNF RMS$_FNF
1450 # define RMS_IFI RMS$_IFI
1451 # define RMS_ISI RMS$_ISI
1452 # define RMS_PRV RMS$_PRV
1453 # define SS_ACCVIO SS$_ACCVIO
1454 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1455 # define SS_IVCHAN SS$_IVCHAN
1456 # define SS_NORMAL SS$_NORMAL
1457 # define SS_NOPRIV SS$_NOPRIV
1458 # define SS_BUFFEROVF SS$_BUFFEROVF
1460 # define LIB_INVARG 0
1468 # define SS_ACCVIO 0
1469 # define SS_DEVOFFLINE 0
1470 # define SS_IVCHAN 0
1471 # define SS_NORMAL 0
1472 # define SS_NOPRIV 0
1473 # define SS_BUFFEROVF 0
1477 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1478 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1479 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1480 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1484 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1485 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1486 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1487 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1491 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1495 # define dSAVEDERRNO int saved_errno
1496 # define dSAVE_ERRNO int saved_errno = errno
1497 # define SAVE_ERRNO (saved_errno = errno)
1498 # define RESTORE_ERRNO (errno = saved_errno)
1502 =head1 Warning and Dieing
1504 =for apidoc Amn|SV *|ERRSV
1506 Returns the SV for C<$@>, creating it if needed.
1508 =for apidoc Am|void|CLEAR_ERRSV
1510 Clear the contents of C<$@>, setting it to the empty string.
1512 This replaces any read-only SV with a fresh SV and removes any magic.
1514 =for apidoc Am|void|SANE_ERRSV
1516 Clean up ERRSV so we can safely set it.
1518 This replaces any read-only SV with a fresh writable copy and removes
1524 #define ERRSV GvSVn(PL_errgv)
1526 /* contains inlined gv_add_by_type */
1527 #define CLEAR_ERRSV() STMT_START { \
1528 SV ** const svp = &GvSV(PL_errgv); \
1530 *svp = newSVpvs(""); \
1531 } else if (SvREADONLY(*svp)) { \
1532 SvREFCNT_dec_NN(*svp); \
1533 *svp = newSVpvs(""); \
1535 SV *const errsv = *svp; \
1537 SvPOK_only(errsv); \
1538 if (SvMAGICAL(errsv)) { \
1544 /* contains inlined gv_add_by_type */
1545 #define SANE_ERRSV() STMT_START { \
1546 SV ** const svp = &GvSV(PL_errgv); \
1548 *svp = newSVpvs(""); \
1549 } else if (SvREADONLY(*svp)) { \
1550 SV *dupsv = newSVsv(*svp); \
1551 SvREFCNT_dec_NN(*svp); \
1554 SV *const errsv = *svp; \
1555 if (SvMAGICAL(errsv)) { \
1563 # define DEFSV (0 + GvSVn(PL_defgv))
1564 # define DEFSV_set(sv) \
1565 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1566 # define SAVE_DEFSV \
1568 save_gp(PL_defgv, 0), \
1569 GvINTRO_off(PL_defgv), \
1570 SAVEGENERICSV(GvSV(PL_defgv)), \
1571 GvSV(PL_defgv) = NULL \
1574 # define DEFSV GvSVn(PL_defgv)
1575 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1576 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1580 extern int errno; /* ANSI allows errno to be an lvalue expr.
1581 * For example in multithreaded environments
1582 * something like this might happen:
1583 * extern int *_errno(void);
1584 * #define errno (*_errno()) */
1587 #define UNKNOWN_ERRNO_MSG "(unknown)"
1590 #define Strerror(e) strerror((e), vaxc$errno)
1592 #define Strerror(e) strerror(e)
1597 # include <sys/ioctl.h>
1601 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1602 # ifdef HAS_SOCKETPAIR
1603 # undef HAS_SOCKETPAIR
1610 #ifndef HAS_SOCKETPAIR
1612 # define socketpair Perl_my_socketpair
1617 # define htoni htons
1618 # define ntohi ntohs
1620 # define htoni htonl
1621 # define ntohi ntohl
1624 /* Configure already sets Direntry_t */
1625 #if defined(I_DIRENT)
1626 # include <dirent.h>
1627 #elif defined(I_SYS_NDIR)
1628 # include <sys/ndir.h>
1629 #elif defined(I_SYS_DIR)
1630 # include <sys/dir.h>
1634 * The following gobbledygook brought to you on behalf of __STDC__.
1635 * (I could just use #ifndef __STDC__, but this is more bulletproof
1636 * in the face of half-implementations.)
1639 #if defined(I_SYSMODE)
1640 #include <sys/mode.h>
1645 # define S_IFMT _S_IFMT
1647 # define S_IFMT 0170000
1652 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1656 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1661 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1663 # define S_ISBLK(m) (0)
1668 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1673 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1675 # define S_ISFIFO(m) (0)
1681 # define S_ISLNK(m) _S_ISLNK(m)
1682 # elif defined(_S_IFLNK)
1683 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1684 # elif defined(S_IFLNK)
1685 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1687 # define S_ISLNK(m) (0)
1693 # define S_ISSOCK(m) _S_ISSOCK(m)
1694 # elif defined(_S_IFSOCK)
1695 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1696 # elif defined(S_IFSOCK)
1697 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1699 # define S_ISSOCK(m) (0)
1705 # define S_IRUSR S_IREAD
1706 # define S_IWUSR S_IWRITE
1707 # define S_IXUSR S_IEXEC
1709 # define S_IRUSR 0400
1710 # define S_IWUSR 0200
1711 # define S_IXUSR 0100
1717 # define S_IRGRP (S_IRUSR>>3)
1718 # define S_IWGRP (S_IWUSR>>3)
1719 # define S_IXGRP (S_IXUSR>>3)
1721 # define S_IRGRP 0040
1722 # define S_IWGRP 0020
1723 # define S_IXGRP 0010
1729 # define S_IROTH (S_IRUSR>>6)
1730 # define S_IWOTH (S_IWUSR>>6)
1731 # define S_IXOTH (S_IXUSR>>6)
1733 # define S_IROTH 0040
1734 # define S_IWOTH 0020
1735 # define S_IXOTH 0010
1740 # define S_ISUID 04000
1744 # define S_ISGID 02000
1748 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1752 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1756 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1759 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1760 * which would get included through <sys/file.h >, but that is 3000
1761 * lines in the future. --jhi */
1763 #if !defined(S_IREAD) && !defined(__HAIKU__)
1764 # define S_IREAD S_IRUSR
1767 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1768 # define S_IWRITE S_IWUSR
1772 # define S_IEXEC S_IXUSR
1775 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1776 # define SLOPPYDIVIDE
1783 /* This used to be conditionally defined based on whether we had a sprintf()
1784 * that correctly returns the string length (as required by C89), but we no
1785 * longer need that. XS modules can (and do) use this name, so it must remain
1786 * a part of the API that's visible to modules.
1788 =head1 Miscellaneous Functions
1790 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1792 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1797 #define my_sprintf sprintf
1800 * If we have v?snprintf() and the C99 variadic macros, we can just
1801 * use just the v?snprintf(). It is nice to try to trap the buffer
1802 * overflow, however, so if we are DEBUGGING, and we cannot use the
1803 * gcc statement expressions, then use the function wrappers which try
1804 * to trap the overflow. If we can use the gcc statement expressions,
1805 * we can try that even with the version that uses the C99 variadic
1809 /* Note that we do not check against snprintf()/vsnprintf() returning
1810 * negative values because that is non-standard behaviour and we use
1811 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1812 * that should be true only if the snprintf()/vsnprintf() are true
1813 * to the standard. */
1815 #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
1818 # define my_snprintf Perl_my_snprintf
1819 # define PERL_MY_SNPRINTF_GUARDED
1820 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1821 # ifdef PERL_USE_GCC_BRACE_GROUPS
1822 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1823 # define PERL_MY_SNPRINTF_GUARDED
1825 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1828 # define my_snprintf Perl_my_snprintf
1829 # define PERL_MY_SNPRINTF_GUARDED
1832 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1833 * dies if called under USE_QUADMATH. */
1834 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1835 # ifdef PERL_USE_GCC_BRACE_GROUPS
1836 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1837 # define PERL_MY_VSNPRINTF_GUARDED
1839 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1842 # define my_vsnprintf Perl_my_vsnprintf
1843 # define PERL_MY_VSNPRINTF_GUARDED
1846 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1847 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1848 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1849 * completely ignore it: otherwise you cannot know whether your output
1852 * int len = my_sprintf(buf, max, ...);
1853 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1855 * The trick is that in certain platforms [a] the my_sprintf() already
1856 * contains the sanity check, while in certain platforms [b] it needs
1857 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1858 * platforms the POST_GUARD actually does nothing since the check has
1859 * already been done. Watch out for the max being the same in both calls.
1861 * If you actually use the snprintf/vsnprintf return value already,
1862 * you assumedly are checking its validity somehow. But you can
1863 * insert the POST_GUARD() also in that case. */
1865 #ifndef PERL_MY_SNPRINTF_GUARDED
1866 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1868 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1871 #ifndef PERL_MY_VSNPRINTF_GUARDED
1872 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1874 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1878 # define my_strlcat strlcat
1881 #if defined(PERL_CORE) || defined(PERL_EXT)
1883 # define my_memrchr memrchr
1885 # define my_memrchr S_my_memrchr
1890 # define my_strlcpy strlcpy
1894 # define my_strnlen strnlen
1898 The IV type is supposed to be long enough to hold any integral
1900 --Andy Dougherty August 1996
1906 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1907 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1908 # define IV_MAX ((IV)INT64_MAX)
1909 # define IV_MIN ((IV)INT64_MIN)
1910 # define UV_MAX ((UV)UINT64_MAX)
1912 # define UINT64_MIN 0
1914 # define UV_MIN ((UV)UINT64_MIN)
1916 # define IV_MAX PERL_QUAD_MAX
1917 # define IV_MIN PERL_QUAD_MIN
1918 # define UV_MAX PERL_UQUAD_MAX
1919 # define UV_MIN PERL_UQUAD_MIN
1924 # if defined(INT32_MAX) && IVSIZE == 4
1925 # define IV_MAX ((IV)INT32_MAX)
1926 # define IV_MIN ((IV)INT32_MIN)
1927 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1928 # define UV_MAX ((UV)UINT32_MAX)
1930 # define UV_MAX ((UV)4294967295U)
1933 # define UINT32_MIN 0
1935 # define UV_MIN ((UV)UINT32_MIN)
1937 # define IV_MAX PERL_LONG_MAX
1938 # define IV_MIN PERL_LONG_MIN
1939 # define UV_MAX PERL_ULONG_MAX
1940 # define UV_MIN PERL_ULONG_MIN
1951 #if !defined(PERL_CORE)
1952 /* We think that removing this decade-old undef this will cause too much
1953 breakage on CPAN for too little gain. (See RT #119753)
1954 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1960 #define Size_t_MAX (~(Size_t)0)
1961 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1963 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1964 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1966 #ifndef NO_PERL_PRESERVE_IVUV
1967 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1971 * The macros INT2PTR and NUM2PTR are (despite their names)
1972 * bi-directional: they will convert int/float to or from pointers.
1973 * However the conversion to int/float are named explicitly:
1974 * PTR2IV, PTR2UV, PTR2NV.
1976 * For int conversions we do not need two casts if pointers are
1977 * the same size as IV and UV. Otherwise we need an explicit
1978 * cast (PTRV) to avoid compiler warnings.
1980 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1982 # define INT2PTR(any,d) (any)(d)
1983 #elif PTRSIZE == LONGSIZE
1984 # define PTRV unsigned long
1985 # define PTR2ul(p) (unsigned long)(p)
1987 # define PTRV unsigned
1991 # define INT2PTR(any,d) (any)(PTRV)(d)
1995 # define PTR2ul(p) INT2PTR(unsigned long,p)
1998 #define NUM2PTR(any,d) (any)(PTRV)(d)
1999 #define PTR2IV(p) INT2PTR(IV,p)
2000 #define PTR2UV(p) INT2PTR(UV,p)
2001 #define PTR2NV(p) NUM2PTR(NV,p)
2002 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2004 /* According to strict ANSI C89 one cannot freely cast between
2005 * data pointers and function (code) pointers. There are at least
2006 * two ways around this. One (used below) is to do two casts,
2007 * first the other pointer to an (unsigned) integer, and then
2008 * the integer to the other pointer. The other way would be
2009 * to use unions to "overlay" the pointers. For an example of
2010 * the latter technique, see union dirpu in struct xpvio in sv.h.
2011 * The only feasible use is probably temporarily storing
2012 * function pointers in a data pointer (such as a void pointer). */
2014 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2015 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2017 #ifdef USE_LONG_DOUBLE
2018 # if LONG_DOUBLESIZE == DOUBLESIZE
2019 # define LONG_DOUBLE_EQUALS_DOUBLE
2020 # undef USE_LONG_DOUBLE /* Ouch! */
2024 /* The following is all to get LDBL_DIG, in order to pick a nice
2025 default value for printing floating point numbers in Gconvert.
2028 #ifndef HAS_LDBL_DIG
2029 # if LONG_DOUBLESIZE == 10
2030 # define LDBL_DIG 18 /* assume IEEE */
2031 # elif LONG_DOUBLESIZE == 12
2032 # define LDBL_DIG 18 /* gcc? */
2033 # elif LONG_DOUBLESIZE == 16
2034 # define LDBL_DIG 33 /* assume IEEE */
2035 # elif LONG_DOUBLESIZE == DOUBLESIZE
2036 # define LDBL_DIG DBL_DIG /* bummer */
2043 # include <ieeefp.h>
2046 #if defined(__DECC) && defined(__osf__)
2047 /* Also Tru64 cc has broken NaN comparisons. */
2048 # define NAN_COMPARE_BROKEN
2051 # define NAN_COMPARE_BROKEN
2054 #ifdef USE_LONG_DOUBLE
2056 # include <sunmath.h>
2058 # if defined(LDBL_DIG)
2059 # define NV_DIG LDBL_DIG
2060 # ifdef LDBL_MANT_DIG
2061 # define NV_MANT_DIG LDBL_MANT_DIG
2064 # define NV_MIN LDBL_MIN
2067 # define NV_MAX LDBL_MAX
2069 # ifdef LDBL_MIN_EXP
2070 # define NV_MIN_EXP LDBL_MIN_EXP
2072 # ifdef LDBL_MAX_EXP
2073 # define NV_MAX_EXP LDBL_MAX_EXP
2075 # ifdef LDBL_MIN_10_EXP
2076 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2078 # ifdef LDBL_MAX_10_EXP
2079 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2081 # ifdef LDBL_EPSILON
2082 # define NV_EPSILON LDBL_EPSILON
2085 # define NV_MAX LDBL_MAX
2086 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2087 # elif defined(HUGE_VALL)
2088 # define NV_MAX HUGE_VALL
2091 # if defined(HAS_SQRTL)
2092 # define Perl_acos acosl
2093 # define Perl_asin asinl
2094 # define Perl_atan atanl
2095 # define Perl_atan2 atan2l
2096 # define Perl_ceil ceill
2097 # define Perl_cos cosl
2098 # define Perl_cosh coshl
2099 # define Perl_exp expl
2100 /* no Perl_fabs, but there's PERL_ABS */
2101 # define Perl_floor floorl
2102 # define Perl_fmod fmodl
2103 # define Perl_log logl
2104 # define Perl_log10 log10l
2105 # define Perl_pow powl
2106 # define Perl_sin sinl
2107 # define Perl_sinh sinhl
2108 # define Perl_sqrt sqrtl
2109 # define Perl_tan tanl
2110 # define Perl_tanh tanhl
2112 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2115 # define Perl_modf(x,y) modfl(x,y)
2116 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2117 prototype in <math.h> */
2118 # ifndef HAS_MODFL_PROTO
2119 EXTERN_C long double modfl(long double, long double *);
2121 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2122 extern long double Perl_my_modfl(long double x, long double *ip);
2123 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2128 # define Perl_frexp(x,y) frexpl(x,y)
2129 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2130 extern long double Perl_my_frexpl(long double x, int *e);
2131 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2136 # define Perl_ldexp(x, y) ldexpl(x,y)
2137 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2138 # define Perl_ldexp(x,y) scalbnl(x,y)
2142 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2143 # define Perl_isnan(x) isnanl(x)
2144 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2145 # define Perl_isnan(x) isnan(x)
2149 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2150 # define Perl_isinf(x) isinfl(x)
2151 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2152 # define Perl_isinf(x) isinf(x)
2153 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2154 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2157 # ifndef Perl_isfinite
2158 # define Perl_isfinite(x) Perl_isfinitel(x)
2160 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2161 # include <quadmath.h>
2162 # define NV_DIG FLT128_DIG
2163 # define NV_MANT_DIG FLT128_MANT_DIG
2164 # define NV_MIN FLT128_MIN
2165 # define NV_MAX FLT128_MAX
2166 # define NV_MIN_EXP FLT128_MIN_EXP
2167 # define NV_MAX_EXP FLT128_MAX_EXP
2168 # define NV_EPSILON FLT128_EPSILON
2169 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2170 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2171 # define Perl_acos acosq
2172 # define Perl_asin asinq
2173 # define Perl_atan atanq
2174 # define Perl_atan2 atan2q
2175 # define Perl_ceil ceilq
2176 # define Perl_cos cosq
2177 # define Perl_cosh coshq
2178 # define Perl_exp expq
2179 /* no Perl_fabs, but there's PERL_ABS */
2180 # define Perl_floor floorq
2181 # define Perl_fmod fmodq
2182 # define Perl_log logq
2183 # define Perl_log10 log10q
2184 # define Perl_signbit signbitq
2185 # define Perl_pow powq
2186 # define Perl_sin sinq
2187 # define Perl_sinh sinhq
2188 # define Perl_sqrt sqrtq
2189 # define Perl_tan tanq
2190 # define Perl_tanh tanhq
2191 # define Perl_modf(x,y) modfq(x,y)
2192 # define Perl_frexp(x,y) frexpq(x,y)
2193 # define Perl_ldexp(x, y) ldexpq(x,y)
2194 # define Perl_isinf(x) isinfq(x)
2195 # define Perl_isnan(x) isnanq(x)
2196 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2197 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2198 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2199 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2200 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2201 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2202 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2204 # define NV_DIG DBL_DIG
2205 # define NV_MANT_DIG DBL_MANT_DIG
2206 # define NV_MIN DBL_MIN
2207 # define NV_MAX DBL_MAX
2208 # define NV_MIN_EXP DBL_MIN_EXP
2209 # define NV_MAX_EXP DBL_MAX_EXP
2210 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2211 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2212 # define NV_EPSILON DBL_EPSILON
2213 # define NV_MAX DBL_MAX
2214 # define NV_MIN DBL_MIN
2216 /* These math interfaces are C89. */
2217 # define Perl_acos acos
2218 # define Perl_asin asin
2219 # define Perl_atan atan
2220 # define Perl_atan2 atan2
2221 # define Perl_ceil ceil
2222 # define Perl_cos cos
2223 # define Perl_cosh cosh
2224 # define Perl_exp exp
2225 /* no Perl_fabs, but there's PERL_ABS */
2226 # define Perl_floor floor
2227 # define Perl_fmod fmod
2228 # define Perl_log log
2229 # define Perl_log10 log10
2230 # define Perl_pow pow
2231 # define Perl_sin sin
2232 # define Perl_sinh sinh
2233 # define Perl_sqrt sqrt
2234 # define Perl_tan tan
2235 # define Perl_tanh tanh
2237 # define Perl_modf(x,y) modf(x,y)
2238 # define Perl_frexp(x,y) frexp(x,y)
2239 # define Perl_ldexp(x,y) ldexp(x,y)
2243 # define Perl_isnan(x) isnan(x)
2247 # if defined(HAS_ISINF)
2248 # define Perl_isinf(x) isinf(x)
2249 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2250 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2253 # ifndef Perl_isfinite
2254 # ifdef HAS_ISFINITE
2255 # define Perl_isfinite(x) isfinite(x)
2256 # elif defined(HAS_FINITE)
2257 # define Perl_isfinite(x) finite(x)
2262 /* fpclassify(): C99. It is supposed to be a macro that switches on
2263 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2264 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2266 # if defined(FP_INFINITE) && defined(FP_NAN)
2267 # define Perl_fp_class(x) fpclassify(x)
2268 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2269 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2270 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2271 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2272 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2273 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2274 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2275 * actually not the C99 fpclassify, with its own set of return defines. */
2276 # define Perl_fp_class(x) fpclassify(x)
2277 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2278 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2279 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2280 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2281 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2282 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2283 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2284 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2285 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2286 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2288 # undef Perl_fp_class /* Unknown set of defines */
2292 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2293 * are identical to the C99 fpclassify(). */
2294 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2297 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2299 /* oh, and the isnormal macro has a typo in it! */
2301 # define isnormal(x) Perl_fp_class_norm(x)
2303 # if defined(FP_INFINITE) && defined(FP_NAN)
2304 # define Perl_fp_class(x) fp_classify(x)
2305 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2306 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2307 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2308 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2309 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2311 # undef Perl_fp_class /* Unknown set of defines */
2315 /* Feel free to check with me for the SGI manpages, SGI testing,
2316 * etcetera, if you want to try getting this to work with IRIX.
2318 * - Allen <allens@cpan.org> */
2320 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2321 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2322 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2323 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2324 * Define some symbols also as cpp symbols so we can detect them. */
2325 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2326 # define FP_PINF FP_PINF
2327 # define FP_QNAN FP_QNAN
2331 # include <ieeefp.h>
2336 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2337 # define Perl_fp_class(x) fpclassl(x)
2339 # define Perl_fp_class(x) fpclass(x)
2341 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2342 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2343 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2344 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2345 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2346 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2347 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2348 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2349 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2350 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2351 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2352 # elif defined(FP_PINF) && defined(FP_QNAN)
2353 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2354 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2355 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2356 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2357 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2358 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2359 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2360 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2361 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2362 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2364 # undef Perl_fp_class /* Unknown set of defines */
2368 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2369 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2371 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2372 # include <fp_class.h>
2374 # if defined(FP_POS_INF) && defined(FP_QNAN)
2375 # ifdef __sgi /* XXX Configure test instead */
2376 # ifdef USE_LONG_DOUBLE
2377 # define Perl_fp_class(x) fp_class_l(x)
2379 # define Perl_fp_class(x) fp_class_d(x)
2382 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2383 # define Perl_fp_class(x) fp_classl(x)
2385 # define Perl_fp_class(x) fp_class(x)
2388 # if defined(FP_POS_INF) && defined(FP_QNAN)
2389 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2390 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2391 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2392 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2393 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2394 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2395 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2396 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2397 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2398 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2400 # undef Perl_fp_class /* Unknown set of defines */
2405 /* class(), _class(): Legacy: AIX. */
2406 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2408 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2410 # define Perl_fp_class(x) class(x)
2412 # define Perl_fp_class(x) _class(x)
2414 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2415 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2416 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2417 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2418 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2419 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2420 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2421 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2422 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2423 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2424 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2426 # undef Perl_fp_class /* Unknown set of defines */
2431 /* Win32: _fpclass(), _isnan(), _finite(). */
2434 # define Perl_isnan(x) _isnan(x)
2436 # ifndef Perl_isfinite
2437 # define Perl_isfinite(x) _finite(x)
2439 # ifndef Perl_fp_class_snan
2440 /* No simple way to #define Perl_fp_class because _fpclass()
2441 * returns a set of bits. */
2442 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2443 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2444 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2445 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2446 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2447 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2448 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2449 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2450 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2451 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2452 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2453 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2454 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2455 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2456 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2460 #if !defined(Perl_fp_class_inf) && \
2461 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2462 # define Perl_fp_class_inf(x) \
2463 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2466 #if !defined(Perl_fp_class_nan) && \
2467 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2468 # define Perl_fp_class_nan(x) \
2469 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2472 #if !defined(Perl_fp_class_zero) && \
2473 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2474 # define Perl_fp_class_zero(x) \
2475 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2478 #if !defined(Perl_fp_class_norm) && \
2479 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2480 # define Perl_fp_class_norm(x) \
2481 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2484 #if !defined(Perl_fp_class_denorm) && \
2485 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2486 # define Perl_fp_class_denorm(x) \
2487 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2491 # ifdef Perl_fp_class_nan
2492 # define Perl_isnan(x) Perl_fp_class_nan(x)
2493 # elif defined(HAS_UNORDERED)
2494 # define Perl_isnan(x) unordered((x), 0.0)
2496 # define Perl_isnan(x) ((x)!=(x))
2501 # ifdef Perl_fp_class_inf
2502 # define Perl_isinf(x) Perl_fp_class_inf(x)
2506 #ifndef Perl_isfinite
2507 # if defined(HAS_ISFINITE) && !defined(isfinite)
2508 # define Perl_isfinite(x) isfinite((double)(x))
2509 # elif defined(HAS_FINITE)
2510 # define Perl_isfinite(x) finite((double)(x))
2511 # elif defined(Perl_fp_class_finite)
2512 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2514 /* For the infinities the multiplication returns nan,
2515 * for the nan the multiplication also returns nan,
2516 * for everything else (that is, finite) zero should be returned. */
2517 # define Perl_isfinite(x) (((x) * 0) == 0)
2522 # if defined(Perl_isfinite) && defined(Perl_isnan)
2523 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2527 /* We need Perl_isfinitel (ends with ell) (if available) even when
2528 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2530 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2531 /* If isfinite() is a macro and looks like we have C99,
2532 * we assume it's the type-aware C99 isfinite(). */
2533 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2534 # define Perl_isfinitel(x) isfinite(x)
2535 # elif defined(HAS_ISFINITEL)
2536 # define Perl_isfinitel(x) isfinitel(x)
2537 # elif defined(HAS_FINITEL)
2538 # define Perl_isfinitel(x) finitel(x)
2539 # elif defined(HAS_INFL) && defined(HAS_NANL)
2540 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2542 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2546 /* The default is to use Perl's own atof() implementation (in numeric.c).
2547 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2548 * it is however best to use the native implementation of atof.
2549 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2550 * Some good tests to try out with either setting are t/base/num.t,
2551 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2552 * you may need to be using a different function than atof! */
2554 #ifndef USE_PERL_ATOF
2556 # define USE_PERL_ATOF
2559 # if USE_PERL_ATOF == 0
2560 # undef USE_PERL_ATOF
2564 #ifdef USE_PERL_ATOF
2565 # define Perl_atof(s) Perl_my_atof(s)
2566 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2568 # define Perl_atof(s) (NV)atof(s)
2569 # define Perl_atof2(s, n) ((n) = atof(s))
2571 #define my_atof2(a,b) my_atof3(a,b,0)
2574 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2575 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2576 * depending on local options. Until Configure detects this (or at least
2577 * detects whether the "signed" keyword is available) the CHAR ranges
2578 * will not be included. UCHAR functions normally.
2582 #define PERL_UCHAR_MIN ((unsigned char)0)
2583 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2585 #define PERL_USHORT_MIN ((unsigned short)0)
2586 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2588 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2589 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2591 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2592 #define PERL_UINT_MIN ((unsigned int)0)
2594 #define PERL_INT_MAX ((int)INT_MAX)
2595 #define PERL_INT_MIN ((int)INT_MIN)
2597 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2598 #define PERL_ULONG_MIN ((unsigned long)0L)
2600 #define PERL_LONG_MAX ((long)LONG_MAX)
2601 #define PERL_LONG_MIN ((long)LONG_MIN)
2604 # define PERL_UQUAD_MAX (~(UV)0)
2605 # define PERL_UQUAD_MIN ((UV)0)
2606 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2607 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2611 =head1 Numeric functions
2613 =for apidoc AmnUh||PERL_INT_MIN
2614 =for apidoc AmnUh||PERL_LONG_MAX
2615 =for apidoc AmnUh||PERL_LONG_MIN
2616 =for apidoc AmnUh||PERL_QUAD_MAX
2617 =for apidoc AmnUh||PERL_SHORT_MAX
2618 =for apidoc AmnUh||PERL_SHORT_MIN
2619 =for apidoc AmnUh||PERL_UCHAR_MAX
2620 =for apidoc AmnUh||PERL_UCHAR_MIN
2621 =for apidoc AmnUh||PERL_UINT_MAX
2622 =for apidoc AmnUh||PERL_ULONG_MAX
2623 =for apidoc AmnUh||PERL_ULONG_MIN
2624 =for apidoc AmnUh||PERL_UQUAD_MAX
2625 =for apidoc AmnUh||PERL_UQUAD_MIN
2626 =for apidoc AmnUh||PERL_USHORT_MAX
2627 =for apidoc AmnUh||PERL_USHORT_MIN
2628 =for apidoc AmnUh||PERL_QUAD_MIN
2629 =for apidoc AmnU||PERL_INT_MAX
2647 give the largest and smallest number representable in the current
2648 platform in variables of the corresponding types.
2650 For signed types, the smallest representable number is the most negative
2651 number, the one furthest away from zero.
2653 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2654 are available to the C code. But these constants, furnished by Perl,
2655 allow code compiled on earlier compilers to portably have access to the same
2662 typedef MEM_SIZE STRLEN;
2664 typedef struct op OP;
2665 typedef struct cop COP;
2666 typedef struct unop UNOP;
2667 typedef struct unop_aux UNOP_AUX;
2668 typedef struct binop BINOP;
2669 typedef struct listop LISTOP;
2670 typedef struct logop LOGOP;
2671 typedef struct pmop PMOP;
2672 typedef struct svop SVOP;
2673 typedef struct padop PADOP;
2674 typedef struct pvop PVOP;
2675 typedef struct loop LOOP;
2676 typedef struct methop METHOP;
2679 typedef struct opslab OPSLAB;
2680 typedef struct opslot OPSLOT;
2683 typedef struct block_hooks BHK;
2684 typedef struct custom_op XOP;
2686 typedef struct interpreter PerlInterpreter;
2688 /* SGI's <sys/sema.h> has struct sv */
2690 # define STRUCT_SV perl_sv
2692 # define STRUCT_SV sv
2694 typedef struct STRUCT_SV SV;
2695 typedef struct av AV;
2696 typedef struct hv HV;
2697 typedef struct cv CV;
2698 typedef struct p5rx REGEXP;
2699 typedef struct gp GP;
2700 typedef struct gv GV;
2701 typedef struct io IO;
2702 typedef struct context PERL_CONTEXT;
2703 typedef struct block BLOCK;
2705 typedef struct magic MAGIC;
2706 typedef struct xpv XPV;
2707 typedef struct xpviv XPVIV;
2708 typedef struct xpvuv XPVUV;
2709 typedef struct xpvnv XPVNV;
2710 typedef struct xpvmg XPVMG;
2711 typedef struct xpvlv XPVLV;
2712 typedef struct xpvinvlist XINVLIST;
2713 typedef struct xpvav XPVAV;
2714 typedef struct xpvhv XPVHV;
2715 typedef struct xpvgv XPVGV;
2716 typedef struct xpvcv XPVCV;
2717 typedef struct xpvbm XPVBM;
2718 typedef struct xpvfm XPVFM;
2719 typedef struct xpvio XPVIO;
2720 typedef struct mgvtbl MGVTBL;
2721 typedef union any ANY;
2722 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2723 typedef struct ptr_tbl PTR_TBL_t;
2724 typedef struct clone_params CLONE_PARAMS;
2726 /* a pad is currently just an AV; but that might change,
2727 * so hide the type. */
2728 typedef struct padlist PADLIST;
2730 typedef struct padnamelist PADNAMELIST;
2731 typedef struct padname PADNAME;
2733 /* always enable PERL_OP_PARENT */
2734 #if !defined(PERL_OP_PARENT)
2735 # define PERL_OP_PARENT
2738 /* enable PERL_COPY_ON_WRITE by default */
2739 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2740 # define PERL_COPY_ON_WRITE
2743 #ifdef PERL_COPY_ON_WRITE
2744 # define PERL_ANY_COW
2746 # define PERL_SAWAMPERSAND
2749 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2750 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2754 #include "charclass_invlists.h"
2756 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2757 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2758 # define USE_64_BIT_RAWIO /* implicit */
2762 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2763 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2764 * however, because operating systems like to do that themself. */
2767 # define FSEEKSIZE LSEEKSIZE
2769 # define FSEEKSIZE LONGSIZE
2773 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2774 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2775 # define USE_64_BIT_STDIO /* implicit */
2779 #ifdef USE_64_BIT_RAWIO
2782 # define Off_t off64_t
2784 # define LSEEKSIZE 8
2786 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2787 * will trigger defines like the ones below. Some 64-bit environments,
2788 * however, do not. Therefore we have to explicitly mix and match. */
2789 # if defined(USE_OPEN64)
2790 # define open open64
2792 # if defined(USE_LSEEK64)
2793 # define lseek lseek64
2795 # if defined(USE_LLSEEK)
2796 # define lseek llseek
2799 # if defined(USE_STAT64)
2800 # define stat stat64
2802 # if defined(USE_FSTAT64)
2803 # define fstat fstat64
2805 # if defined(USE_LSTAT64)
2806 # define lstat lstat64
2808 # if defined(USE_FLOCK64)
2809 # define flock flock64
2811 # if defined(USE_LOCKF64)
2812 # define lockf lockf64
2814 # if defined(USE_FCNTL64)
2815 # define fcntl fcntl64
2817 # if defined(USE_TRUNCATE64)
2818 # define truncate truncate64
2820 # if defined(USE_FTRUNCATE64)
2821 # define ftruncate ftruncate64
2825 #ifdef USE_64_BIT_STDIO
2826 # ifdef HAS_FPOS64_T
2828 # define Fpos_t fpos64_t
2830 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2831 * will trigger defines like the ones below. Some 64-bit environments,
2832 * however, do not. */
2833 # if defined(USE_FOPEN64)
2834 # define fopen fopen64
2836 # if defined(USE_FSEEK64)
2837 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2839 # if defined(USE_FTELL64)
2840 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2842 # if defined(USE_FSETPOS64)
2843 # define fsetpos fsetpos64
2845 # if defined(USE_FGETPOS64)
2846 # define fgetpos fgetpos64
2848 # if defined(USE_TMPFILE64)
2849 # define tmpfile tmpfile64
2851 # if defined(USE_FREOPEN64)
2852 # define freopen freopen64
2857 # include "iperlsys.h"
2862 # include "os2ish.h"
2864 # include "dosish.h"
2867 # include "vmsish.h"
2868 #elif defined(PLAN9)
2869 # include "./plan9/plan9ish.h"
2870 #elif defined(__VOS__)
2872 # include "./vos/vosish.h"
2874 # include "vos/vosish.h"
2876 #elif defined(__SYMBIAN32__)
2877 # include "symbian/symbianish.h"
2878 #elif defined(__HAIKU__)
2879 # include "haiku/haikuish.h"
2881 # include "unixish.h"
2885 # include "amigaos.h"
2886 # undef FD_CLOEXEC /* a lie in AmigaOS */
2889 /* NSIG logic from Configure --> */
2892 # define NSIG (_NSIG)
2893 # elif defined(SIGMAX)
2894 # define NSIG (SIGMAX+1)
2895 # elif defined(SIG_MAX)
2896 # define NSIG (SIG_MAX+1)
2897 # elif defined(_SIG_MAX)
2898 # define NSIG (_SIG_MAX+1)
2899 # elif defined(MAXSIG)
2900 # define NSIG (MAXSIG+1)
2901 # elif defined(MAX_SIG)
2902 # define NSIG (MAX_SIG+1)
2903 # elif defined(SIGARRAYSIZE)
2904 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2905 # elif defined(_sys_nsig)
2906 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2908 /* Default to some arbitrary number that's big enough to get most
2909 * of the common signals. */
2913 /* <-- NSIG logic from Configure */
2915 #ifndef NO_ENVIRON_ARRAY
2916 # define USE_ENVIRON_ARRAY
2920 /* On some platforms it would be safe to use a read/write mutex with many
2921 * readers possible at the same time. On other platforms, notably IBM ones,
2922 * subsequent getenv calls destroy earlier ones. Those platforms would not
2923 * be able to handle simultaneous getenv calls */
2924 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2925 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2926 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2927 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2929 # define ENV_LOCK NOOP;
2930 # define ENV_UNLOCK NOOP;
2931 # define ENV_INIT NOOP;
2932 # define ENV_TERM NOOP;
2935 /* Some critical sections need to lock both the locale and the environment.
2936 * XXX khw intends to change this to lock both mutexes, but that brings up
2937 * issues of potential deadlock, so should be done at the beginning of a
2938 * development cycle. So for now, it just locks the environment. Note that
2939 * many modern platforms are locale-thread-safe anyway, so locking the locale
2940 * mutex is a no-op anyway */
2941 #define ENV_LOCALE_LOCK ENV_LOCK
2942 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2944 /* And some critical sections care only that no one else is writing either the
2945 * locale nor the environment. XXX Again this is for the future. This can be
2946 * simulated with using COND_WAIT in thread.h */
2947 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2948 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2950 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2951 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2952 * signal handlers. But the perl core itself only fully supports 1-arg
2953 * handlers, so don't enable for now.
2954 * NB: POSIX::sigaction() supports both.
2956 * # define PERL_USE_3ARG_SIGHANDLER
2961 * This is an alias for the OS's siginfo_t, except that where the OS
2962 * doesn't support it, declare a dummy version instead. This allows us to
2963 * have signal handler functions which always have a Siginfo_t parameter
2964 * regardless of platform, (and which will just be passed a NULL value
2965 * where the OS doesn't support HAS_SIGACTION).
2968 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2969 typedef siginfo_t Siginfo_t;
2978 * initialise to avoid floating-point exceptions from overflow, etc
2980 #ifndef PERL_FPU_INIT
2981 # ifdef HAS_FPSETMASK
2982 # if HAS_FLOATINGPOINT_H
2983 # include <floatingpoint.h>
2985 /* Some operating systems have this as a macro, which in turn expands to a comma
2986 expression, and the last sub-expression is something that gets calculated,
2987 and then they have the gall to warn that a value computed is not used. Hence
2989 # define PERL_FPU_INIT (void)fpsetmask(0)
2990 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2991 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2992 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2993 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2995 # define PERL_FPU_INIT
2998 #ifndef PERL_FPU_PRE_EXEC
2999 # define PERL_FPU_PRE_EXEC {
3000 # define PERL_FPU_POST_EXEC }
3003 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3004 * We need to reenable the "invalid" trap because otherwise generation
3005 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3006 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3008 # include <machine/fpu.h>
3009 # define PERL_SYS_FPU_INIT \
3011 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3012 signal(SIGFPE, SIG_IGN); \
3015 /* In IRIX the default for Flush to Zero bit is true,
3016 * which means that results going below the minimum of normal
3017 * floating points go to zero, instead of going denormal/subnormal.
3018 * This is unlike almost any other system running Perl, so let's clear it.
3019 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3020 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3022 * XXX The flush-to-zero behaviour should be a Configure scan.
3023 * To change the behaviour usually requires some system-specific
3024 * incantation, though, like the below. */
3026 # include <sys/fpu.h>
3027 # define PERL_SYS_FPU_INIT \
3029 union fpc_csr csr; \
3030 csr.fc_word = get_fpc_csr(); \
3031 csr.fc_struct.flush = 0; \
3032 set_fpc_csr(csr.fc_word); \
3036 #ifndef PERL_SYS_FPU_INIT
3037 # define PERL_SYS_FPU_INIT NOOP
3040 #ifndef PERL_SYS_INIT3_BODY
3041 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3045 =head1 Miscellaneous Functions
3047 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3048 Provides system-specific tune up of the C runtime environment necessary to
3049 run Perl interpreters. This should be called only once, before creating
3050 any Perl interpreters.
3052 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3053 Provides system-specific tune up of the C runtime environment necessary to
3054 run Perl interpreters. This should be called only once, before creating
3055 any Perl interpreters.
3057 =for apidoc Am|void|PERL_SYS_TERM|
3058 Provides system-specific clean up of the C runtime environment after
3059 running Perl interpreters. This should be called only once, after
3060 freeing any remaining Perl interpreters.
3065 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3066 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3067 #define PERL_SYS_TERM() Perl_sys_term()
3069 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3070 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3075 # ifdef _POSIX_PATH_MAX
3076 # if PATH_MAX > _POSIX_PATH_MAX
3077 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3078 * included the null byte or not. Later amendments of POSIX,
3079 * XPG4, the Austin Group, and the Single UNIX Specification
3080 * all explicitly include the null byte in the PATH_MAX.
3081 * Ditto for _POSIX_PATH_MAX. */
3082 # define MAXPATHLEN PATH_MAX
3084 # define MAXPATHLEN _POSIX_PATH_MAX
3087 # define MAXPATHLEN (PATH_MAX+1)
3090 # define MAXPATHLEN 1024 /* Err on the large side. */
3094 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
3095 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
3096 * this results in many functions being undeclared which bothers C++
3097 * May make sense to have threads after "*ish.h" anyway
3100 /* clang Thread Safety Analysis/Annotations/Attributes
3101 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3103 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3104 * Apple XCode hijacks __clang_major__ and __clang_minor__
3105 * (6.1 means really clang 3.6), so needs extra hijinks
3106 * (could probably also test the contents of __apple_build_version__).
3108 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3109 defined(__clang__) && \
3110 !defined(PERL_GLOBAL_STRUCT) && \
3111 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3113 ((!defined(__apple_build_version__) && \
3114 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3115 (__clang_major__ >= 4))) || \
3116 (defined(__apple_build_version__) && \
3117 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3118 (__clang_major__ >= 7))))
3119 # define PERL_TSA__(x) __attribute__((x))
3120 # define PERL_TSA_ACTIVE
3122 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3123 # undef PERL_TSA_ACTIVE
3126 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3127 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3129 #define PERL_TSA_CAPABILITY(x) \
3130 PERL_TSA__(capability(x))
3132 /* In the below examples the mutex must be lexically visible, usually
3133 * either as global variables, or as function arguments. */
3135 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3137 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3139 #define PERL_TSA_GUARDED_BY(x) \
3140 PERL_TSA__(guarded_by(x))
3142 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3143 * The data _behind_ the pointer is guarded.
3145 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3147 #define PERL_TSA_PT_GUARDED_BY(x) \
3148 PERL_TSA__(pt_guarded_by(x))
3150 /* PERL_TSA_REQUIRES() is used to annotate functions.
3151 * The caller MUST hold the resource when calling the function.
3153 * void Foo() PERL_TSA_REQUIRES(mutex);
3155 #define PERL_TSA_REQUIRES(x) \
3156 PERL_TSA__(requires_capability(x))
3158 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3159 * The caller MUST NOT hold resource when calling the function.
3161 * EXCLUDES should be used when the function first acquires
3162 * the resource and then releases it. Use to avoid deadlock.
3164 * void Foo() PERL_TSA_EXCLUDES(mutex);
3166 #define PERL_TSA_EXCLUDES(x) \
3167 PERL_TSA__(locks_excluded(x))
3169 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3170 * The caller MUST NOT hold the resource when calling the function,
3171 * and the function will acquire the resource.
3173 * void Foo() PERL_TSA_ACQUIRE(mutex);
3175 #define PERL_TSA_ACQUIRE(x) \
3176 PERL_TSA__(acquire_capability(x))
3178 /* PERL_TSA_RELEASE() is used to annotate functions.
3179 * The caller MUST hold the resource when calling the function,
3180 * and the function will release the resource.
3182 * void Foo() PERL_TSA_RELEASE(mutex);
3184 #define PERL_TSA_RELEASE(x) \
3185 PERL_TSA__(release_capability(x))
3187 /* PERL_TSA_NO_TSA is used to annotate functions.
3188 * Used when being intentionally unsafe, or when the code is too
3189 * complicated for the analysis. Use sparingly.
3191 * void Foo() PERL_TSA_NO_TSA;
3193 #define PERL_TSA_NO_TSA \
3194 PERL_TSA__(no_thread_safety_analysis)
3196 /* There are more annotations/attributes available, see the clang
3197 * documentation for details. */
3199 #if defined(USE_ITHREADS)
3201 # include <nw5thread.h>
3202 # elif defined(WIN32)
3203 # include <win32thread.h>
3205 # include "os2thread.h"
3206 # elif defined(I_MACH_CTHREADS)
3207 # include <mach/cthreads.h>
3208 typedef cthread_t perl_os_thread;
3209 typedef mutex_t perl_mutex;
3210 typedef condition_t perl_cond;
3211 typedef void * perl_key;
3212 # elif defined(I_PTHREAD) /* Posix threads */
3213 # include <pthread.h>
3214 typedef pthread_t perl_os_thread;
3215 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3216 typedef pthread_cond_t perl_cond;
3217 typedef pthread_key_t perl_key;
3219 #endif /* USE_ITHREADS */
3221 #ifdef PERL_TSA_ACTIVE
3222 /* Since most pthread mutex interfaces have not been annotated, we
3223 * need to have these wrappers. The NO_TSA annotation is quite ugly
3224 * but it cannot be avoided in plain C, unlike in C++, where one could
3225 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3227 * The bodies of these wrappers are in util.c
3229 * TODO: however, some platforms are starting to get these clang
3230 * thread safety annotations for pthreads, for example FreeBSD.
3231 * Do we need a way to a bypass these wrappers? */
3232 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3233 PERL_TSA_ACQUIRE(*mutex)
3235 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3236 PERL_TSA_RELEASE(*mutex)
3245 # include "netware.h"
3248 #define STATUS_UNIX PL_statusvalue
3250 # define STATUS_NATIVE PL_statusvalue_vms
3252 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3253 * its contents can not be trusted. Unfortunately, Perl seems to check
3254 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3257 # include <stsdef.h>
3259 /* Presume this because if VMS changes it, it will require a new
3260 * set of APIs for waiting on children for binary compatibility.
3262 # define child_offset_bits (8)
3263 # ifndef C_FAC_POSIX
3264 # define C_FAC_POSIX 0x35A000
3267 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3268 * platform from the existing UNIX or Native status values.
3271 # define STATUS_EXIT \
3272 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3273 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3276 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3277 * exit code and shifts the UNIX value over the correct number of bits to
3278 * be a child status. Usually the number of bits is 8, but that could be
3279 * platform dependent. The NATIVE status code is presumed to have either
3280 * from a child process.
3283 /* This is complicated. The child processes return a true native VMS
3284 status which must be saved. But there is an assumption in Perl that
3285 the UNIX child status has some relationship to errno values, so
3286 Perl tries to translate it to text in some of the tests.
3287 In order to get the string translation correct, for the error, errno
3288 must be EVMSERR, but that generates a different text message
3289 than what the test programs are expecting. So an errno value must
3290 be derived from the native status value when an error occurs.
3291 That will hide the true native status message. With this version of
3292 perl, the true native child status can always be retrieved so that
3293 is not a problem. But in this case, Pl_statusvalue and errno may
3294 have different values in them.
3297 # define STATUS_NATIVE_CHILD_SET(n) \
3299 I32 evalue = (I32)n; \
3300 if (evalue == EVMSERR) { \
3301 PL_statusvalue_vms = vaxc$errno; \
3302 PL_statusvalue = evalue; \
3304 PL_statusvalue_vms = evalue; \
3305 if (evalue == -1) { \
3306 PL_statusvalue = -1; \
3307 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3309 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3310 set_vaxc_errno(evalue); \
3311 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3312 set_errno(EVMSERR); \
3313 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3314 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3318 # ifdef VMSISH_STATUS
3319 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3321 # define STATUS_CURRENT STATUS_UNIX
3324 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3325 * the NATIVE status to an equivalent value. Can not be used to translate
3326 * exit code values as exit code values are not guaranteed to have any
3327 * relationship at all to errno values.
3328 * This is used when Perl is forcing errno to have a specific value.
3330 # define STATUS_UNIX_SET(n) \
3332 I32 evalue = (I32)n; \
3333 PL_statusvalue = evalue; \
3334 if (PL_statusvalue != -1) { \
3335 if (PL_statusvalue != EVMSERR) { \
3336 PL_statusvalue &= 0xFFFF; \
3337 if (MY_POSIX_EXIT) \
3338 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3339 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3342 PL_statusvalue_vms = vaxc$errno; \
3345 else PL_statusvalue_vms = SS$_ABORT; \
3346 set_vaxc_errno(PL_statusvalue_vms); \
3349 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3350 * the NATIVE error status based on it.
3352 * When in the default mode to comply with the Perl VMS documentation,
3353 * 0 is a success and any other code sets the NATIVE status to a failure
3354 * code of SS$_ABORT.
3356 * In the new POSIX EXIT mode, native status will be set so that the
3357 * actual exit code will can be retrieved by the calling program or
3360 * If the exit code is not clearly a UNIX parent or child exit status,
3361 * it will be passed through as a VMS status.
3364 # define STATUS_UNIX_EXIT_SET(n) \
3366 I32 evalue = (I32)n; \
3367 PL_statusvalue = evalue; \
3368 if (MY_POSIX_EXIT) { \
3369 if (evalue <= 0xFF00) { \
3370 if (evalue > 0xFF) \
3371 evalue = (evalue >> child_offset_bits) & 0xFF; \
3372 PL_statusvalue_vms = \
3373 (C_FAC_POSIX | (evalue << 3 ) | \
3374 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3375 } else /* forgive them Perl, for they have sinned */ \
3376 PL_statusvalue_vms = evalue; \
3379 PL_statusvalue_vms = SS$_NORMAL; \
3380 else if (evalue <= 0xFF00) \
3381 PL_statusvalue_vms = SS$_ABORT; \
3382 else { /* forgive them Perl, for they have sinned */ \
3383 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3384 else PL_statusvalue_vms = vaxc$errno; \
3385 /* And obviously used a VMS status value instead of UNIX */ \
3386 PL_statusvalue = EVMSERR; \
3388 set_vaxc_errno(PL_statusvalue_vms); \
3393 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3394 * and sets the NATIVE error status based on it. This special case
3395 * is needed to maintain compatibility with past VMS behavior.
3397 * In the default mode on VMS, this number is passed through as
3398 * both the NATIVE and UNIX status. Which makes it different
3399 * that the STATUS_UNIX_EXIT_SET.
3401 * In the new POSIX EXIT mode, native status will be set so that the
3402 * actual exit code will can be retrieved by the calling program or
3405 * A POSIX exit code is from 0 to 255. If the exit code is higher
3406 * than this, it needs to be assumed that it is a VMS exit code and
3410 # define STATUS_EXIT_SET(n) \
3412 I32 evalue = (I32)n; \
3413 PL_statusvalue = evalue; \
3414 if (MY_POSIX_EXIT) \
3415 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3416 PL_statusvalue_vms = \
3417 (C_FAC_POSIX | (evalue << 3 ) | \
3418 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3420 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3421 set_vaxc_errno(PL_statusvalue_vms); \
3425 /* This macro forces a success status */
3426 # define STATUS_ALL_SUCCESS \
3427 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3429 /* This macro forces a failure status */
3430 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3431 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3432 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3434 #elif defined(__amigaos4__)
3435 /* A somewhat experimental attempt to simulate posix return code values */
3436 # define STATUS_NATIVE PL_statusvalue_posix
3437 # define STATUS_NATIVE_CHILD_SET(n) \
3439 PL_statusvalue_posix = (n); \
3440 if (PL_statusvalue_posix < 0) { \
3441 PL_statusvalue = -1; \
3444 PL_statusvalue = n << 8; \
3447 # define STATUS_UNIX_SET(n) \
3449 PL_statusvalue = (n); \
3450 if (PL_statusvalue != -1) \
3451 PL_statusvalue &= 0xFFFF; \
3453 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3454 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3455 # define STATUS_CURRENT STATUS_UNIX
3456 # define STATUS_EXIT STATUS_UNIX
3457 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3458 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3461 # define STATUS_NATIVE PL_statusvalue_posix
3462 # if defined(WCOREDUMP)
3463 # define STATUS_NATIVE_CHILD_SET(n) \
3465 PL_statusvalue_posix = (n); \
3466 if (PL_statusvalue_posix == -1) \
3467 PL_statusvalue = -1; \
3470 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3471 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3472 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3475 # elif defined(WIFEXITED)
3476 # define STATUS_NATIVE_CHILD_SET(n) \
3478 PL_statusvalue_posix = (n); \
3479 if (PL_statusvalue_posix == -1) \
3480 PL_statusvalue = -1; \
3483 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3484 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3488 # define STATUS_NATIVE_CHILD_SET(n) \
3490 PL_statusvalue_posix = (n); \
3491 if (PL_statusvalue_posix == -1) \
3492 PL_statusvalue = -1; \
3495 PL_statusvalue_posix & 0xFFFF; \
3499 # define STATUS_UNIX_SET(n) \
3501 PL_statusvalue = (n); \
3502 if (PL_statusvalue != -1) \
3503 PL_statusvalue &= 0xFFFF; \
3505 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3506 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3507 # define STATUS_CURRENT STATUS_UNIX
3508 # define STATUS_EXIT STATUS_UNIX
3509 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3510 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3513 /* flags in PL_exit_flags for nature of exit() */
3514 #define PERL_EXIT_EXPECTED 0x01
3515 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3516 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3517 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3520 /* format to use for version numbers in file/directory names */
3521 /* XXX move to Configure? */
3522 /* This was only ever used for the current version, and that can be done at
3523 compile time, as PERL_FS_VERSION, so should we just delete it? */
3524 # ifndef PERL_FS_VER_FMT
3525 # define PERL_FS_VER_FMT "%d.%d.%d"
3529 #ifndef PERL_FS_VERSION
3530 # define PERL_FS_VERSION PERL_VERSION_STRING
3533 /* This defines a way to flush all output buffers. This may be a
3534 * performance issue, so we allow people to disable it. Also, if
3535 * we are using stdio, there are broken implementations of fflush(NULL)
3536 * out there, Solaris being the most prominent.
3538 #ifndef PERL_FLUSHALL_FOR_CHILD
3539 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3540 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3541 # elif defined(FFLUSH_ALL)
3542 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3544 # define PERL_FLUSHALL_FOR_CHILD NOOP
3548 #ifndef PERL_WAIT_FOR_CHILDREN
3549 # define PERL_WAIT_FOR_CHILDREN NOOP
3552 /* the traditional thread-unsafe notion of "current interpreter". */
3553 #ifndef PERL_SET_INTERP
3554 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3557 #ifndef PERL_GET_INTERP
3558 # define PERL_GET_INTERP (PL_curinterp)
3561 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3562 # ifdef MULTIPLICITY
3563 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3565 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3569 This replaces the previous %_ "hack" by the "%p" hacks.
3570 All that is required is that the perl source does not
3571 use "%-p" or "%-<number>p" or "%<number>p" formats.
3572 These formats will still work in perl code.
3573 See comments in sv.c for further details.
3575 Robin Barker 2005-07-14
3577 No longer use %1p for VDf = %vd. RMB 2007-10-19
3581 # define SVf_(n) "-" STRINGIFY(n) "p"
3589 # define SVf32 SVf_(32)
3593 # define SVf256 SVf_(256)
3596 #define SVfARG(p) ((void*)(p))
3602 /* Not ideal, but we cannot easily include a number in an already-numeric
3603 * format sequence. */
3605 # define HEKf256 "3p"
3608 #define HEKfARG(p) ((void*)(p))
3611 =for apidoc Amnh||UTF8f
3612 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3615 * %4p is a custom format
3618 # define UTF8f "d%" UVuf "%4p"
3620 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3623 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3626 /* not used; but needed for backward compatibility with XS code? - RMB */
3632 #if !defined(DEBUGGING) && !defined(NDEBUG)
3637 /* For functions that are marked as __attribute__noreturn__, it's not
3638 appropriate to call return. In either case, include the lint directive.
3640 #ifdef HASATTRIBUTE_NORETURN
3641 # define NORETURN_FUNCTION_END NOT_REACHED;
3643 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3646 #ifdef HAS_BUILTIN_EXPECT
3647 # define EXPECT(expr,val) __builtin_expect(expr,val)
3649 # define EXPECT(expr,val) (expr)
3653 =head1 Miscellaneous Functions
3655 =for apidoc AmU|bool|LIKELY|const bool expr
3657 Returns the input unchanged, but at the same time it gives a branch prediction
3658 hint to the compiler that this condition is likely to be true.
3660 =for apidoc AmU|bool|UNLIKELY|const bool expr
3662 Returns the input unchanged, but at the same time it gives a branch prediction
3663 hint to the compiler that this condition is likely to be false.
3667 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3668 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3670 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3674 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3675 time invariants. That is, their argument must be a constant expression that
3676 can be verified by the compiler. This expression can contain anything that's
3677 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3678 the expression evaluates to 0, compilation fails.
3679 Because they generate no runtime code (i.e. their use is "free"), they're
3680 always active, even under non-DEBUGGING builds.
3681 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3682 file scope (outside of any function).
3683 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3686 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3687 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3688 || (__STDC_VERSION__ - 0) >= 201101L)) \
3689 || (defined(__cplusplus) && __cplusplus >= 201103L))
3690 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3691 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3692 matter what <assert.h> says.
3694 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3696 /* We use a bit-field instead of an array because gcc accepts
3697 'typedef char x[n]' where n is not a compile-time constant.
3698 We want to enforce constantness.
3700 # define STATIC_ASSERT_2(COND, SUFFIX) \
3702 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3703 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3704 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3705 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3707 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3708 error (static_assert is a declaration, and only statements can have labels).
3710 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3712 #ifndef __has_builtin
3713 # define __has_builtin(x) 0 /* not a clang style compiler */
3716 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3717 hint to a compiler about a statement of fact in a function call free
3718 expression, which allows the compiler to generate better machine code.
3719 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3720 the control path is unreachable. In a for loop, ASSUME can be used to hint
3721 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3722 intrinsic function, see its documents for more details.
3726 # if __has_builtin(__builtin_unreachable) \
3727 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3728 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3729 # elif defined(_MSC_VER)
3730 # define ASSUME(x) __assume(x)
3731 # elif defined(__ARMCC_VERSION) /* untested */
3732 # define ASSUME(x) __promise(x)
3734 /* a random compiler might define assert to its own special optimization token
3735 so pass it through to C lib as a last resort */
3736 # define ASSUME(x) assert(x)
3739 # define ASSUME(x) assert(x)
3742 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3743 # define NOT_REACHED
3744 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3745 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3746 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3748 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3751 /* Some unistd.h's give a prototype for pause() even though
3752 HAS_PAUSE ends up undefined. This causes the #define
3753 below to be rejected by the compiler. Sigh.
3758 #define Pause() sleep((32767<<16)+32767)
3762 # ifdef IOCPARM_MASK
3763 /* on BSDish systems we're safe */
3764 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3765 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3766 /* on Linux systems we're safe; except when we're not [perl #38223] */
3767 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3769 /* otherwise guess at what's safe */
3770 # define IOCPARM_LEN(x) 256
3774 #if defined(__CYGWIN__)
3776 * This symbol, if defined, indicates that the program should
3777 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3778 * that a file is in "binary" mode -- that is, that no translation
3779 * of bytes occurs on read or write operations.
3781 # define USEMYBINMODE /**/
3782 # include <io.h> /* for setmode() prototype */
3783 # define my_binmode(fp, iotype, mode) \
3784 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3788 void init_os_extras(void);
3791 #ifdef UNION_ANY_DEFINITION
3792 UNION_ANY_DEFINITION;
3810 void (*any_dptr) (void*);
3811 void (*any_dxptr) (pTHX_ void*);
3815 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3817 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3818 #define FILTER_DATA(idx) \
3819 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3820 #define FILTER_ISREADER(idx) \
3821 (PL_parser && PL_parser->rsfp_filters \
3822 && idx >= AvFILLp(PL_parser->rsfp_filters))
3823 #define PERL_FILTER_EXISTS(i) \
3824 (PL_parser && PL_parser->rsfp_filters \
3825 && (i) <= av_tindex(PL_parser->rsfp_filters))
3827 #if defined(_AIX) && !defined(_AIX43)
3828 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3829 /* We cannot include <crypt.h> to get the struct crypt_data
3830 * because of setkey prototype problems when threading */
3831 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3832 /* From OSF, Not needed in AIX
3840 #endif /* threading */
3843 #ifndef PERL_CALLCONV
3845 # define PERL_CALLCONV extern "C"
3847 # define PERL_CALLCONV
3850 #ifndef PERL_CALLCONV_NO_RET
3851 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3854 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3855 dont have a noreturn as a declaration specifier
3857 #ifndef PERL_STATIC_NO_RET
3858 # define PERL_STATIC_NO_RET STATIC
3860 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3861 builds that dont have a noreturn as a declaration specifier
3863 #ifndef PERL_STATIC_INLINE_NO_RET
3864 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3867 #ifndef PERL_STATIC_FORCE_INLINE
3868 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3871 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3872 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3876 # include "iperlsys.h"
3879 #ifdef __LIBCATAMOUNT__
3880 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3882 #define FAKE_BIT_BUCKET
3885 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3886 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3887 * Configure, despite their names being similar to other defines like
3888 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3889 * hashes. Therefore to enable/disable the hash randomisation defines
3890 * use the Configure -Accflags=... instead. */
3891 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3892 # define USE_HASH_SEED
3898 /* macros to define bit-fields in structs. */
3899 #ifndef PERL_BITFIELD8
3900 # define PERL_BITFIELD8 U8
3902 #ifndef PERL_BITFIELD16
3903 # define PERL_BITFIELD16 U16
3905 #ifndef PERL_BITFIELD32
3906 # define PERL_BITFIELD32 U32
3916 #include "opnames.h"
3923 #include "warnings.h"
3926 /* these would be in doio.h if there was such a file */
3927 #define my_stat() my_stat_flags(SV_GMAGIC)
3928 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3930 /* defined in sv.c, but also used in [ach]v.c */
3933 #undef _XPVCV_COMMON
3937 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3939 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3941 /* These have to be predeclared, as they are used in proto.h which is #included
3942 * before their definitions in regcomp.h. */
3945 typedef struct regnode_charclass regnode_charclass;
3947 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3948 * used under /l matching */
3949 typedef struct regnode_charclass_posixl regnode_charclass_class;
3950 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3952 typedef struct regnode_ssc regnode_ssc;
3953 typedef struct RExC_state_t RExC_state_t;
3954 struct _reg_trie_data;
3958 struct ptr_tbl_ent {
3959 struct ptr_tbl_ent* next;
3965 struct ptr_tbl_ent** tbl_ary;
3968 struct ptr_tbl_arena *tbl_arena;
3969 struct ptr_tbl_ent *tbl_arena_next;
3970 struct ptr_tbl_ent *tbl_arena_end;
3973 #if defined(htonl) && !defined(HAS_HTONL)
3976 #if defined(htons) && !defined(HAS_HTONS)
3979 #if defined(ntohl) && !defined(HAS_NTOHL)
3982 #if defined(ntohs) && !defined(HAS_NTOHS)
3990 # if (BYTEORDER & 0xffff) == 0x4321
3991 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3992 re-order their values. However, to behave identically to the alternative
3993 implementations, they should truncate to the correct size. */
3994 # define ntohl(x) ((x)&0xFFFFFFFF)
3995 # define htonl(x) ntohl(x)
3996 # define ntohs(x) ((x)&0xFFFF)
3997 # define htons(x) ntohs(x)
3998 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4000 /* Note that we can't straight out declare our own htonl and htons because
4001 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4002 to avoid the overhead of initialising the socket subsystem, but the headers
4003 that *declare* the various functions are still seen. If we declare our own
4004 htonl etc they will clash with the declarations in the Win32 headers. */
4006 PERL_STATIC_INLINE U32
4007 my_swap32(const U32 x) {
4008 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4009 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4012 PERL_STATIC_INLINE U16
4013 my_swap16(const U16 x) {
4014 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4017 # define htonl(x) my_swap32(x)
4018 # define ntohl(x) my_swap32(x)
4019 # define ntohs(x) my_swap16(x)
4020 # define htons(x) my_swap16(x)
4022 # error "Unsupported byteorder"
4023 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4024 the error message. Please check the value of the macro BYTEORDER, as defined
4025 in config.h. The values of BYTEORDER we expect are
4027 big endian little endian
4028 32 bit 0x4321 0x1234
4029 64 bit 0x87654321 0x12345678
4031 If you have a system with a different byte order, please see
4032 pod/perlhack.pod for how to submit a patch to add supporting code.
4038 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4041 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4042 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4043 re-order their values. However, to behave identically to the alternative
4044 implementations, they should truncate to the correct size. */
4045 # define vtohl(x) ((x)&0xFFFFFFFF)
4046 # define vtohs(x) ((x)&0xFFFF)
4047 # define htovl(x) vtohl(x)
4048 # define htovs(x) vtohs(x)
4049 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4050 # define vtohl(x) ((((x)&0xFF)<<24) \
4052 +(((x)&0x0000FF00)<<8) \
4053 +(((x)&0x00FF0000)>>8) )
4054 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4055 # define htovl(x) vtohl(x)
4056 # define htovs(x) vtohs(x)
4058 # error "Unsupported byteorder"
4059 /* If you have need for current perl on PDP-11 or similar, and can help test
4060 that blead keeps working on a mixed-endian system, then see
4061 pod/perlhack.pod for how to submit patches to things working again. */
4064 /* *MAX Plus 1. A floating point value.
4065 Hopefully expressed in a way that dodgy floating point can't mess up.
4066 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4068 May find that some broken compiler will want the value cast to I32.
4069 [after the shift, as signed >> may not be as secure as unsigned >>]
4071 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4072 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4073 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4074 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4075 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4077 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4079 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4080 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4081 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4083 /* This may look like unnecessary jumping through hoops, but converting
4084 out of range floating point values to integers *is* undefined behaviour,
4085 and it is starting to bite.
4088 #define I_32(what) (cast_i32((NV)(what)))
4089 #define U_32(what) (cast_ulong((NV)(what)))
4090 #define I_V(what) (cast_iv((NV)(what)))
4091 #define U_V(what) (cast_uv((NV)(what)))
4093 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4094 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4095 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4096 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4097 : ((n) < U32_MAX_P1 ? (U32) (n) \
4098 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4099 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4100 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4101 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4102 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4103 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4104 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4107 #define U_S(what) ((U16)U_32(what))
4108 #define U_I(what) ((unsigned int)U_32(what))
4109 #define U_L(what) U_32(what)
4112 # ifndef Perl_signbit
4113 # define Perl_signbit signbit
4117 /* These do not care about the fractional part, only about the range. */
4118 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4119 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4121 /* Used with UV/IV arguments: */
4122 /* XXXX: need to speed it up */
4123 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4124 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4131 #if !(defined(WIN32) || defined(SYMBIAN))
4132 Uid_t getuid (void);
4133 Uid_t geteuid (void);
4134 Gid_t getgid (void);
4135 Gid_t getegid (void);
4139 #ifndef Perl_debug_log
4140 # define Perl_debug_log PerlIO_stderr()
4143 #ifndef Perl_error_log
4144 # define Perl_error_log (PL_stderrgv \
4145 && isGV(PL_stderrgv) \
4146 && GvIOp(PL_stderrgv) \
4147 && IoOFP(GvIOp(PL_stderrgv)) \
4148 ? IoOFP(GvIOp(PL_stderrgv)) \
4153 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4154 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4155 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4156 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4157 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4158 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4159 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4160 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4161 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4162 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4163 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4164 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4165 /* U is reserved for Unofficial, exploratory hacking */
4166 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4168 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4169 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4170 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4171 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4172 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4173 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4174 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4175 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4176 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4177 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4178 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4179 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4180 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4181 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4182 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4183 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4185 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4186 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4188 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4189 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4190 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4191 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4192 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4193 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4194 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4195 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4196 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4197 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4198 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4199 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4200 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4201 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4202 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4203 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4204 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4205 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4206 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4207 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4208 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4209 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4210 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4211 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4212 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4213 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4214 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4215 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4216 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4217 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4218 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4219 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4220 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4224 # define DEBUG_p_TEST DEBUG_p_TEST_
4225 # define DEBUG_s_TEST DEBUG_s_TEST_
4226 # define DEBUG_l_TEST DEBUG_l_TEST_
4227 # define DEBUG_t_TEST DEBUG_t_TEST_
4228 # define DEBUG_o_TEST DEBUG_o_TEST_
4229 # define DEBUG_c_TEST DEBUG_c_TEST_
4230 # define DEBUG_P_TEST DEBUG_P_TEST_
4231 # define DEBUG_m_TEST DEBUG_m_TEST_
4232 # define DEBUG_f_TEST DEBUG_f_TEST_
4233 # define DEBUG_r_TEST DEBUG_r_TEST_
4234 # define DEBUG_x_TEST DEBUG_x_TEST_
4235 # define DEBUG_u_TEST DEBUG_u_TEST_
4236 # define DEBUG_U_TEST DEBUG_U_TEST_
4237 # define DEBUG_X_TEST DEBUG_X_TEST_
4238 # define DEBUG_D_TEST DEBUG_D_TEST_
4239 # define DEBUG_S_TEST DEBUG_S_TEST_
4240 # define DEBUG_T_TEST DEBUG_T_TEST_
4241 # define DEBUG_R_TEST DEBUG_R_TEST_
4242 # define DEBUG_J_TEST DEBUG_J_TEST_
4243 # define DEBUG_v_TEST DEBUG_v_TEST_
4244 # define DEBUG_C_TEST DEBUG_C_TEST_
4245 # define DEBUG_A_TEST DEBUG_A_TEST_
4246 # define DEBUG_q_TEST DEBUG_q_TEST_
4247 # define DEBUG_M_TEST DEBUG_M_TEST_
4248 # define DEBUG_B_TEST DEBUG_B_TEST_
4249 # define DEBUG_L_TEST DEBUG_L_TEST_
4250 # define DEBUG_i_TEST DEBUG_i_TEST_
4251 # define DEBUG_y_TEST DEBUG_y_TEST_
4252 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4253 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4254 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4255 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4256 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4258 # define PERL_DEB(a) a
4259 # define PERL_DEB2(a,b) a
4260 # define PERL_DEBUG(a) if (PL_debug) a
4261 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4262 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4263 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4264 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4265 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4266 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4267 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4269 /* Temporarily turn off memory debugging in case the a
4270 * does memory allocation, either directly or indirectly. */
4271 # define DEBUG_m(a) \
4273 if (PERL_GET_INTERP) { \
4275 if (DEBUG_m_TEST) { \
4276 PL_debug &= ~DEBUG_m_FLAG; \
4278 PL_debug |= DEBUG_m_FLAG; \
4283 # define DEBUG__(t, a) \
4285 if (t) STMT_START {a;} STMT_END; \
4288 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4290 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4291 # ifdef PERL_EXT_RE_BUILD
4292 # define DEBUG_r(a) STMT_START {a;} STMT_END
4294 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4295 # endif /* PERL_EXT_RE_BUILD */
4297 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4298 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4299 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4300 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4301 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4302 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4303 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4304 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4305 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4306 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4308 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4309 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4310 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4311 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4312 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4313 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4314 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4315 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4316 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4317 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4318 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4319 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4321 #else /* ! DEBUGGING below */
4323 # define DEBUG_p_TEST (0)
4324 # define DEBUG_s_TEST (0)
4325 # define DEBUG_l_TEST (0)
4326 # define DEBUG_t_TEST (0)
4327 # define DEBUG_o_TEST (0)
4328 # define DEBUG_c_TEST (0)
4329 # define DEBUG_P_TEST (0)
4330 # define DEBUG_m_TEST (0)
4331 # define DEBUG_f_TEST (0)
4332 # define DEBUG_r_TEST (0)
4333 # define DEBUG_x_TEST (0)
4334 # define DEBUG_u_TEST (0)
4335 # define DEBUG_U_TEST (0)
4336 # define DEBUG_X_TEST (0)
4337 # define DEBUG_D_TEST (0)
4338 # define DEBUG_S_TEST (0)
4339 # define DEBUG_T_TEST (0)
4340 # define DEBUG_R_TEST (0)
4341 # define DEBUG_J_TEST (0)
4342 # define DEBUG_v_TEST (0)
4343 # define DEBUG_C_TEST (0)
4344 # define DEBUG_A_TEST (0)
4345 # define DEBUG_q_TEST (0)
4346 # define DEBUG_M_TEST (0)
4347 # define DEBUG_B_TEST (0)
4348 # define DEBUG_L_TEST (0)
4349 # define DEBUG_i_TEST (0)
4350 # define DEBUG_y_TEST (0)
4351 # define DEBUG_Xv_TEST (0)
4352 # define DEBUG_Uv_TEST (0)
4353 # define DEBUG_Pv_TEST (0)
4354 # define DEBUG_Lv_TEST (0)
4355 # define DEBUG_yv_TEST (0)
4357 # define PERL_DEB(a)
4358 # define PERL_DEB2(a,b) b
4359 # define PERL_DEBUG(a)
4387 # define DEBUG_Xv(a)
4388 # define DEBUG_Uv(a)
4389 # define DEBUG_Pv(a)
4390 # define DEBUG_Lv(a)
4391 # define DEBUG_yv(a)
4392 #endif /* DEBUGGING */
4395 #define DEBUG_SCOPE(where) \
4397 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4398 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4399 __FILE__, __LINE__));
4401 /* Keep the old croak based assert for those who want it, and as a fallback if
4402 the platform is so heretically non-ANSI that it can't assert. */
4404 #define Perl_assert(what) PERL_DEB2( \
4405 ((what) ? ((void) 0) : \
4406 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4407 "\", line %d", STRINGIFY(what), __LINE__), \
4408 (void) 0)), ((void)0))
4410 /* assert() gets defined if DEBUGGING.
4411 * If no DEBUGGING, the <assert.h> has not been included. */
4413 # define assert(what) Perl_assert(what)
4416 # define assert_(what) assert(what),
4418 # define assert_(what)
4422 I32 (*uf_val)(pTHX_ IV, SV*);
4423 I32 (*uf_set)(pTHX_ IV, SV*);
4427 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4428 * XS code wanting to be backward compatible can do something
4429 * like the following:
4431 #ifndef PERL_MG_UFUNC
4432 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4435 static PERL_MG_UFUNC(foo_get, index, val)
4445 #ifndef PERL_MG_UFUNC
4446 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4451 /* isfinite and others are here rather than in math.h as C99 stipulates */
4456 # if !defined(WIN32) && !defined(VMS)
4458 char *crypt (const char*, const char*);
4460 # endif /* !WIN32 */
4463 char *getlogin (void);
4465 # endif /* !WIN32 */
4466 #endif /* !__cplusplus */
4468 /* Fixme on VMS. This needs to be a run-time, not build time options */
4469 /* Also rename() is affected by this */
4470 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4471 #define UNLINK unlnk
4472 I32 unlnk (pTHX_ const char*);
4474 #define UNLINK PerlLIO_unlink
4477 /* some versions of glibc are missing the setresuid() proto */
4478 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4479 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4481 /* some versions of glibc are missing the setresgid() proto */
4482 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4483 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4486 #ifndef HAS_SETREUID
4487 # ifdef HAS_SETRESUID
4488 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4489 # define HAS_SETREUID
4492 #ifndef HAS_SETREGID
4493 # ifdef HAS_SETRESGID
4494 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4495 # define HAS_SETREGID
4499 /* Sighandler_t defined in iperlsys.h */
4501 #ifdef HAS_SIGACTION
4502 typedef struct sigaction Sigsave_t;
4504 typedef Sighandler_t Sigsave_t;
4515 # define RUNOPS_DEFAULT Perl_runops_debug
4517 # define RUNOPS_DEFAULT Perl_runops_standard
4520 #if defined(USE_PERLIO)
4521 EXTERN_C void PerlIO_teardown(void);
4522 # ifdef USE_ITHREADS
4523 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4524 # define PERLIO_TERM \
4526 PerlIO_teardown(); \
4527 MUTEX_DESTROY(&PL_perlio_mutex);\
4530 # define PERLIO_INIT
4531 # define PERLIO_TERM PerlIO_teardown()
4534 # define PERLIO_INIT
4535 # define PERLIO_TERM
4539 # ifdef MUTEX_INIT_CALLS_MALLOC
4540 # define MALLOC_INIT \
4542 PL_malloc_mutex = NULL; \
4543 MUTEX_INIT(&PL_malloc_mutex); \
4545 # define MALLOC_TERM \
4547 perl_mutex tmp = PL_malloc_mutex; \
4548 PL_malloc_mutex = NULL; \
4549 MUTEX_DESTROY(&tmp); \
4552 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4553 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4556 # define MALLOC_INIT
4557 # define MALLOC_TERM
4560 #if defined(PERL_IMPLICIT_CONTEXT)
4562 struct perl_memory_debug_header;
4563 struct perl_memory_debug_header {
4565 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4568 struct perl_memory_debug_header *prev;
4569 struct perl_memory_debug_header *next;
4570 # ifdef PERL_DEBUG_READONLY_COW
4575 #elif defined(PERL_DEBUG_READONLY_COW)
4577 struct perl_memory_debug_header;
4578 struct perl_memory_debug_header {
4584 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4586 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4587 (sizeof(struct perl_memory_debug_header) + \
4588 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4589 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4592 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4595 #ifdef PERL_TRACK_MEMPOOL
4596 # ifdef PERL_DEBUG_READONLY_COW
4597 # define INIT_TRACK_MEMPOOL(header, interp) \
4599 (header).interpreter = (interp); \
4600 (header).prev = (header).next = &(header); \
4601 (header).readonly = 0; \
4604 # define INIT_TRACK_MEMPOOL(header, interp) \
4606 (header).interpreter = (interp); \
4607 (header).prev = (header).next = &(header); \
4611 # define INIT_TRACK_MEMPOOL(header, interp)
4614 #ifdef I_MALLOCMALLOC
4615 /* Needed for malloc_size(), malloc_good_size() on some systems */
4616 # include <malloc/malloc.h>
4620 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4622 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4623 # ifdef PERL_TRACK_MEMPOOL
4624 # define Perl_safesysmalloc_size(where) \
4625 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4627 # define Perl_safesysmalloc_size(where) malloc_size(where)
4630 # ifdef HAS_MALLOC_GOOD_SIZE
4631 # ifdef PERL_TRACK_MEMPOOL
4632 # define Perl_malloc_good_size(how_much) \
4633 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4635 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4638 /* Having this as the identity operation makes some code simpler. */
4639 # define Perl_malloc_good_size(how_much) (how_much)
4643 typedef int (*runops_proc_t)(pTHX);
4644 typedef void (*share_proc_t) (pTHX_ SV *sv);
4645 typedef int (*thrhook_proc_t) (pTHX);
4646 typedef OP* (*PPADDR_t[]) (pTHX);
4647 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4648 typedef void (*despatch_signals_proc_t) (pTHX);
4650 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4651 # include <crt_externs.h> /* for the env array */
4652 # define environ (*_NSGetEnviron())
4653 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4654 /* VMS and some other platforms don't use the environ array */
4655 EXTERN_C char **environ; /* environment variables supplied via exec */
4658 #define PERL_PATCHLEVEL_H_IMPLICIT
4659 #include "patchlevel.h"
4660 #undef PERL_PATCHLEVEL_H_IMPLICIT
4662 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4663 STRINGIFY(PERL_VERSION) "." \
4664 STRINGIFY(PERL_SUBVERSION)
4666 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4667 STRINGIFY(PERL_API_VERSION) "." \
4668 STRINGIFY(PERL_API_SUBVERSION)
4672 /* handy constants */
4673 EXTCONST char PL_warn_uninit[]
4674 INIT("Use of uninitialized value%s%s%s");
4675 EXTCONST char PL_warn_uninit_sv[]
4676 INIT("Use of uninitialized value%" SVf "%s%s");
4677 EXTCONST char PL_warn_nosemi[]
4678 INIT("Semicolon seems to be missing");
4679 EXTCONST char PL_warn_reserved[]
4680 INIT("Unquoted string \"%s\" may clash with future reserved word");
4681 EXTCONST char PL_warn_nl[]
4682 INIT("Unsuccessful %s on filename containing newline");
4683 EXTCONST char PL_no_wrongref[]
4684 INIT("Can't use %s ref as %s ref");
4685 /* The core no longer needs this here. If you require the string constant,
4686 please inline a copy into your own code. */
4687 EXTCONST char PL_no_symref[] __attribute__deprecated__
4688 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4689 EXTCONST char PL_no_symref_sv[]
4690 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4692 EXTCONST char PL_no_usym[]
4693 INIT("Can't use an undefined value as %s reference");
4694 EXTCONST char PL_no_aelem[]
4695 INIT("Modification of non-creatable array value attempted, subscript %d");
4696 EXTCONST char PL_no_helem_sv[]
4697 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4698 EXTCONST char PL_no_modify[]
4699 INIT("Modification of a read-only value attempted");
4700 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4701 INIT("Out of memory!\n");
4702 EXTCONST char PL_no_security[]
4703 INIT("Insecure dependency in %s%s");
4704 EXTCONST char PL_no_sock_func[]
4705 INIT("Unsupported socket function \"%s\" called");
4706 EXTCONST char PL_no_dir_func[]
4707 INIT("Unsupported directory function \"%s\" called");
4708 EXTCONST char PL_no_func[]
4709 INIT("The %s function is unimplemented");
4710 EXTCONST char PL_no_myglob[]
4711 INIT("\"%s\" %s %s can't be in a package");
4712 EXTCONST char PL_no_localize_ref[]
4713 INIT("Can't localize through a reference");
4714 EXTCONST char PL_memory_wrap[]
4715 INIT("panic: memory wrap");
4716 EXTCONST char PL_extended_cp_format[]
4717 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4718 " and so is not portable");
4719 EXTCONST char PL_Yes[]
4721 EXTCONST char PL_No[]
4723 EXTCONST char PL_Zero[]
4725 EXTCONST char PL_hexdigit[]
4726 INIT("0123456789abcdef0123456789ABCDEF");
4728 EXTCONST STRLEN PL_WARN_ALL
4730 EXTCONST STRLEN PL_WARN_NONE
4733 /* This is constant on most architectures, a global on OS/2 */
4735 EXTCONST char PL_sh_path[]
4736 INIT(SH_PATH); /* full path of shell */
4740 EXTCONST char PL_cshname[]
4742 # define PL_cshlen (sizeof(CSH "") - 1)
4745 /* These are baked at compile time into any shared perl library.
4746 In future releases this will allow us in main() to sanity test the
4747 library we're linking against. */
4749 EXTCONST U8 PL_revision
4750 INIT(PERL_REVISION);
4751 EXTCONST U8 PL_version
4753 EXTCONST U8 PL_subversion
4754 INIT(PERL_SUBVERSION);
4756 EXTCONST char PL_uuemap[65]
4757 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4759 /* a special string address whose value is "isa", but which perl knows
4760 * to treat as if it were really "DOES" when printing the method name in
4761 * the "Can't call method '%s'" error message */
4762 EXTCONST char PL_isa_DOES[]
4766 EXTCONST char PL_uudmap[256] =
4768 # include "uuudmap.h"
4770 # include "uudmap.h"
4773 EXTCONST char PL_bitcount[256] =
4775 # include "ubitcount.h"
4777 # include "bitcount.h"
4780 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4781 EXTCONST int PL_sig_num[] = { SIG_NUM };
4783 EXTCONST char PL_uudmap[256];
4784 EXTCONST char PL_bitcount[256];
4785 EXTCONST char* const PL_sig_name[];
4786 EXTCONST int PL_sig_num[];
4789 /* fast conversion and case folding tables. The folding tables complement the
4790 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4791 * folds such as outside the range or to multiple characters. */
4796 /* The EBCDIC fold table depends on the code page, and hence is found in
4799 EXTCONST unsigned char PL_fold[] = {
4800 0, 1, 2, 3, 4, 5, 6, 7,
4801 8, 9, 10, 11, 12, 13, 14, 15,
4802 16, 17, 18, 19, 20, 21, 22, 23,
4803 24, 25, 26, 27, 28, 29, 30, 31,
4804 32, 33, 34, 35, 36, 37, 38, 39,
4805 40, 41, 42, 43, 44, 45, 46, 47,
4806 48, 49, 50, 51, 52, 53, 54, 55,
4807 56, 57, 58, 59, 60, 61, 62, 63,
4808 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4809 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4810 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4811 'x', 'y', 'z', 91, 92, 93, 94, 95,
4812 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4813 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4814 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4815 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4816 128, 129, 130, 131, 132, 133, 134, 135,
4817 136, 137, 138, 139, 140, 141, 142, 143,
4818 144, 145, 146, 147, 148, 149, 150, 151,
4819 152, 153, 154, 155, 156, 157, 158, 159,
4820 160, 161, 162, 163, 164, 165, 166, 167,
4821 168, 169, 170, 171, 172, 173, 174, 175,
4822 176, 177, 178, 179, 180, 181, 182, 183,
4823 184, 185, 186, 187, 188, 189, 190, 191,
4824 192, 193, 194, 195, 196, 197, 198, 199,
4825 200, 201, 202, 203, 204, 205, 206, 207,
4826 208, 209, 210, 211, 212, 213, 214, 215,
4827 216, 217, 218, 219, 220, 221, 222, 223,
4828 224, 225, 226, 227, 228, 229, 230, 231,
4829 232, 233, 234, 235, 236, 237, 238, 239,
4830 240, 241, 242, 243, 244, 245, 246, 247,
4831 248, 249, 250, 251, 252, 253, 254, 255
4833 EXTCONST unsigned char PL_fold_latin1[] = {
4834 /* Full latin1 complement folding, except for three problematic code points:
4835 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4836 * fold complements outside the Latin1 range, so can't match something
4837 * that isn't in utf8.
4838 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4839 * not one, so can't be represented in this table.
4841 * All have to be specially handled */
4842 0, 1, 2, 3, 4, 5, 6, 7,
4843 8, 9, 10, 11, 12, 13, 14, 15,
4844 16, 17, 18, 19, 20, 21, 22, 23,
4845 24, 25, 26, 27, 28, 29, 30, 31,
4846 32, 33, 34, 35, 36, 37, 38, 39,
4847 40, 41, 42, 43, 44, 45, 46, 47,
4848 48, 49, 50, 51, 52, 53, 54, 55,
4849 56, 57, 58, 59, 60, 61, 62, 63,
4850 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4851 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4852 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4853 'x', 'y', 'z', 91, 92, 93, 94, 95,
4854 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4855 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4856 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4857 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4858 128, 129, 130, 131, 132, 133, 134, 135,
4859 136, 137, 138, 139, 140, 141, 142, 143,
4860 144, 145, 146, 147, 148, 149, 150, 151,
4861 152, 153, 154, 155, 156, 157, 158, 159,
4862 160, 161, 162, 163, 164, 165, 166, 167,
4863 168, 169, 170, 171, 172, 173, 174, 175,
4864 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4865 184, 185, 186, 187, 188, 189, 190, 191,
4866 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4867 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4868 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4869 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4870 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4871 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4872 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4873 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4874 255 /* y with diaeresis */
4877 /* If these tables are accessed through ebcdic, the access will be converted to
4879 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4880 0, 1, 2, 3, 4, 5, 6, 7,
4881 8, 9, 10, 11, 12, 13, 14, 15,
4882 16, 17, 18, 19, 20, 21, 22, 23,
4883 24, 25, 26, 27, 28, 29, 30, 31,
4884 32, 33, 34, 35, 36, 37, 38, 39,
4885 40, 41, 42, 43, 44, 45, 46, 47,
4886 48, 49, 50, 51, 52, 53, 54, 55,
4887 56, 57, 58, 59, 60, 61, 62, 63,
4888 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4889 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4890 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4891 'x', 'y', 'z', 91, 92, 93, 94, 95,
4892 96, 97, 98, 99, 100, 101, 102, 103,
4893 104, 105, 106, 107, 108, 109, 110, 111,
4894 112, 113, 114, 115, 116, 117, 118, 119,
4895 120, 121, 122, 123, 124, 125, 126, 127,
4896 128, 129, 130, 131, 132, 133, 134, 135,
4897 136, 137, 138, 139, 140, 141, 142, 143,
4898 144, 145, 146, 147, 148, 149, 150, 151,
4899 152, 153, 154, 155, 156, 157, 158, 159,
4900 160, 161, 162, 163, 164, 165, 166, 167,
4901 168, 169, 170, 171, 172, 173, 174, 175,
4902 176, 177, 178, 179, 180, 181, 182, 183,
4903 184, 185, 186, 187, 188, 189, 190, 191,
4904 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4905 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4906 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4907 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4908 224, 225, 226, 227, 228, 229, 230, 231,
4909 232, 233, 234, 235, 236, 237, 238, 239,
4910 240, 241, 242, 243, 244, 245, 246, 247,
4911 248, 249, 250, 251, 252, 253, 254, 255
4914 /* upper and title case of latin1 characters, modified so that the three tricky
4915 * ones are mapped to 255 (which is one of the three) */
4916 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4917 0, 1, 2, 3, 4, 5, 6, 7,
4918 8, 9, 10, 11, 12, 13, 14, 15,
4919 16, 17, 18, 19, 20, 21, 22, 23,
4920 24, 25, 26, 27, 28, 29, 30, 31,
4921 32, 33, 34, 35, 36, 37, 38, 39,
4922 40, 41, 42, 43, 44, 45, 46, 47,
4923 48, 49, 50, 51, 52, 53, 54, 55,
4924 56, 57, 58, 59, 60, 61, 62, 63,
4925 64, 65, 66, 67, 68, 69, 70, 71,
4926 72, 73, 74, 75, 76, 77, 78, 79,
4927 80, 81, 82, 83, 84, 85, 86, 87,
4928 88, 89, 90, 91, 92, 93, 94, 95,
4929 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4930 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4931 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4932 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4933 128, 129, 130, 131, 132, 133, 134, 135,
4934 136, 137, 138, 139, 140, 141, 142, 143,
4935 144, 145, 146, 147, 148, 149, 150, 151,
4936 152, 153, 154, 155, 156, 157, 158, 159,
4937 160, 161, 162, 163, 164, 165, 166, 167,
4938 168, 169, 170, 171, 172, 173, 174, 175,
4939 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4940 184, 185, 186, 187, 188, 189, 190, 191,
4941 192, 193, 194, 195, 196, 197, 198, 199,
4942 200, 201, 202, 203, 204, 205, 206, 207,
4943 208, 209, 210, 211, 212, 213, 214, 215,
4944 216, 217, 218, 219, 220, 221, 222,
4945 #if UNICODE_MAJOR_VERSION > 2 \
4946 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4947 && UNICODE_DOT_DOT_VERSION >= 8)
4949 #else /* uc(sharp s) is 'sharp s' itself in early unicode */
4952 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4953 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4954 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4955 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4957 #endif /* !EBCDIC, but still in DOINIT */
4958 #else /* ! DOINIT */
4960 EXTCONST unsigned char PL_fold[];
4961 EXTCONST unsigned char PL_fold_latin1[];
4962 EXTCONST unsigned char PL_mod_latin1_uc[];
4963 EXTCONST unsigned char PL_latin1_lc[];
4967 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4969 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */
4970 0, 1, 2, 3, 4, 5, 6, 7,
4971 8, 9, 10, 11, 12, 13, 14, 15,
4972 16, 17, 18, 19, 20, 21, 22, 23,
4973 24, 25, 26, 27, 28, 29, 30, 31,
4974 32, 33, 34, 35, 36, 37, 38, 39,
4975 40, 41, 42, 43, 44, 45, 46, 47,
4976 48, 49, 50, 51, 52, 53, 54, 55,
4977 56, 57, 58, 59, 60, 61, 62, 63,
4978 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4979 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4980 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4981 'x', 'y', 'z', 91, 92, 93, 94, 95,
4982 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4983 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4984 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4985 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4986 128, 129, 130, 131, 132, 133, 134, 135,
4987 136, 137, 138, 139, 140, 141, 142, 143,
4988 144, 145, 146, 147, 148, 149, 150, 151,
4989 152, 153, 154, 155, 156, 157, 158, 159,
4990 160, 161, 162, 163, 164, 165, 166, 167,
4991 168, 169, 170, 171, 172, 173, 174, 175,
4992 176, 177, 178, 179, 180, 181, 182, 183,
4993 184, 185, 186, 187, 188, 189, 190, 191,
4994 192, 193, 194, 195, 196, 197, 198, 199,
4995 200, 201, 202, 203, 204, 205, 206, 207,
4996 208, 209, 210, 211, 212, 213, 214, 215,
4997 216, 217, 218, 219, 220, 221, 222, 223,
4998 224, 225, 226, 227, 228, 229, 230, 231,
4999 232, 233, 234, 235, 236, 237, 238, 239,
5000 240, 241, 242, 243, 244, 245, 246, 247,
5001 248, 249, 250, 251, 252, 253, 254, 255
5004 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */
5006 #endif /* !PERL_GLOBAL_STRUCT */
5010 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
5011 1, 2, 84, 151, 154, 155, 156, 157,
5012 165, 246, 250, 3, 158, 7, 18, 29,
5013 40, 51, 62, 73, 85, 96, 107, 118,
5014 129, 140, 147, 148, 149, 150, 152, 153,
5015 255, 6, 8, 9, 10, 11, 12, 13,
5016 14, 15, 24, 25, 26, 27, 28, 226,
5017 29, 30, 31, 32, 33, 43, 44, 45,
5018 46, 47, 48, 49, 50, 76, 77, 78,
5019 79, 80, 81, 82, 83, 84, 85, 86,
5020 87, 94, 95, 234, 181, 233, 187, 190,
5021 180, 96, 97, 98, 99, 100, 101, 102,
5022 104, 112, 182, 174, 236, 232, 229, 103,
5023 228, 226, 114, 115, 116, 117, 118, 119,
5024 120, 121, 122, 235, 176, 230, 194, 162,
5025 130, 131, 132, 133, 134, 135, 136, 137,
5026 138, 139, 201, 205, 163, 217, 220, 224,
5027 5, 248, 227, 244, 242, 255, 241, 231,
5028 240, 253, 16, 197, 19, 20, 21, 187,
5029 23, 169, 210, 245, 237, 249, 247, 239,
5030 168, 252, 34, 196, 36, 37, 38, 39,
5031 41, 42, 251, 254, 238, 223, 221, 213,
5032 225, 177, 52, 53, 54, 55, 56, 57,
5033 58, 59, 60, 61, 63, 64, 65, 66,
5034 67, 68, 69, 70, 71, 72, 74, 75,
5035 205, 208, 186, 202, 200, 218, 198, 179,
5036 178, 214, 88, 89, 90, 91, 92, 93,
5037 217, 166, 170, 207, 199, 209, 206, 204,
5038 160, 212, 105, 106, 108, 109, 110, 111,
5039 203, 113, 216, 215, 192, 175, 193, 243,
5040 172, 161, 123, 124, 125, 126, 127, 128,
5041 222, 219, 211, 195, 188, 193, 185, 184,
5042 191, 183, 141, 142, 143, 144, 145, 146
5044 #else /* ascii rather than ebcdic */
5045 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
5046 1, 2, 84, 151, 154, 155, 156, 157,
5047 165, 246, 250, 3, 158, 7, 18, 29,
5048 40, 51, 62, 73, 85, 96, 107, 118,
5049 129, 140, 147, 148, 149, 150, 152, 153,
5050 255, 182, 224, 205, 174, 176, 180, 217,
5051 233, 232, 236, 187, 235, 228, 234, 226,
5052 222, 219, 211, 195, 188, 193, 185, 184,
5053 191, 183, 201, 229, 181, 220, 194, 162,
5054 163, 208, 186, 202, 200, 218, 198, 179,
5055 178, 214, 166, 170, 207, 199, 209, 206,
5056 204, 160, 212, 216, 215, 192, 175, 173,
5057 243, 172, 161, 190, 203, 189, 164, 230,
5058 167, 248, 227, 244, 242, 255, 241, 231,
5059 240, 253, 169, 210, 245, 237, 249, 247,
5060 239, 168, 252, 251, 254, 238, 223, 221,
5061 213, 225, 177, 197, 171, 196, 159, 4,
5062 5, 6, 8, 9, 10, 11, 12, 13,
5063 14, 15, 16, 17, 19, 20, 21, 22,
5064 23, 24, 25, 26, 27, 28, 30, 31,
5065 32, 33, 34, 35, 36, 37, 38, 39,
5066 41, 42, 43, 44, 45, 46, 47, 48,
5067 49, 50, 52, 53, 54, 55, 56, 57,
5068 58, 59, 60, 61, 63, 64, 65, 66,
5069 67, 68, 69, 70, 71, 72, 74, 75,
5070 76, 77, 78, 79, 80, 81, 82, 83,
5071 86, 87, 88, 89, 90, 91, 92, 93,
5072 94, 95, 97, 98, 99, 100, 101, 102,
5073 103, 104, 105, 106, 108, 109, 110, 111,
5074 112, 113, 114, 115, 116, 117, 119, 120,
5075 121, 122, 123, 124, 125, 126, 127, 128,
5076 130, 131, 132, 133, 134, 135, 136, 137,
5077 138, 139, 141, 142, 143, 144, 145, 146
5081 EXTCONST unsigned char PL_freq[];
5084 /* Although only used for debugging, these constants must be available in
5085 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5086 * which has DEBUGGING enabled always */
5088 EXTCONST char* const PL_block_type[] = {
5104 EXTCONST char* PL_block_type[];
5107 /* These are all the compile time options that affect binary compatibility.
5108 Other compile time options that are binary compatible are in perl.c
5109 (in S_Internals_V()). Both are combined for the output of perl -V
5110 However, this string will be embedded in any shared perl library, which will
5111 allow us add a comparison check in perlmain.c in the near future. */
5113 EXTCONST char PL_bincompat_options[] =
5114 # ifdef DEBUG_LEAKING_SCALARS
5115 " DEBUG_LEAKING_SCALARS"
5117 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5118 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5126 # ifdef HAVE_INTERP_INTERN
5127 " HAVE_INTERP_INTERN"
5129 # ifdef MULTIPLICITY
5135 # ifdef PERLIO_LAYERS
5138 # ifdef PERL_DEBUG_READONLY_COW
5139 " PERL_DEBUG_READONLY_COW"
5141 # ifdef PERL_DEBUG_READONLY_OPS
5142 " PERL_DEBUG_READONLY_OPS"
5144 # ifdef PERL_GLOBAL_STRUCT
5145 " PERL_GLOBAL_STRUCT"
5147 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
5148 " PERL_GLOBAL_STRUCT_PRIVATE"
5150 # ifdef PERL_IMPLICIT_CONTEXT
5151 " PERL_IMPLICIT_CONTEXT"
5153 # ifdef PERL_IMPLICIT_SYS
5154 " PERL_IMPLICIT_SYS"
5159 # ifdef PERL_NEED_APPCTX
5162 # ifdef PERL_NEED_TIMESBASE
5163 " PERL_NEED_TIMESBASE"
5168 # ifdef PERL_SAWAMPERSAND
5169 " PERL_SAWAMPERSAND"
5171 # ifdef PERL_TRACK_MEMPOOL
5172 " PERL_TRACK_MEMPOOL"
5174 # ifdef PERL_USES_PL_PIDSTATUS
5175 " PERL_USES_PL_PIDSTATUS"
5177 # ifdef USE_64_BIT_ALL
5180 # ifdef USE_64_BIT_INT
5186 # ifdef USE_ITHREADS
5189 # ifdef USE_LARGE_FILES
5192 # ifdef USE_LOCALE_COLLATE
5193 " USE_LOCALE_COLLATE"
5195 # ifdef USE_LOCALE_NUMERIC
5196 " USE_LOCALE_NUMERIC"
5198 # ifdef USE_LOCALE_TIME
5201 # ifdef USE_LONG_DOUBLE
5207 # ifdef USE_QUADMATH
5210 # ifdef USE_REENTRANT_API
5211 " USE_REENTRANT_API"
5216 # ifdef VMS_DO_SOCKETS
5219 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5220 " VMS_SHORTEN_LONG_SYMBOLS"
5222 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5223 " VMS_SYMBOL_CASE_AS_IS"
5227 EXTCONST char PL_bincompat_options[];
5230 #ifndef PERL_SET_PHASE
5231 # define PERL_SET_PHASE(new_phase) \
5232 PERL_DTRACE_PROBE_PHASE(new_phase); \
5233 PL_phase = new_phase;
5236 /* The interpreter phases. If these ever change, PL_phase_names right below will
5237 * need to be updated accordingly. */
5239 PERL_PHASE_CONSTRUCT = 0,
5240 PERL_PHASE_START = 1,
5241 PERL_PHASE_CHECK = 2,
5242 PERL_PHASE_INIT = 3,
5245 PERL_PHASE_DESTRUCT = 6
5249 EXTCONST char *const PL_phase_names[] = {
5259 EXTCONST char *const PL_phase_names[];
5263 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5264 * instead of using the newer PL_phase, which provides everything PL_dirty
5265 * provided, and more. */
5266 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5268 # define PL_amagic_generation PL_na
5269 # define PL_encoding ((SV *)NULL)
5270 #endif /* !PERL_CORE */
5272 #define PL_hints PL_compiling.cop_hints
5273 #define PL_maxo MAXO
5277 /*****************************************************************************/
5278 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5279 /*****************************************************************************/
5280 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5283 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5292 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5300 XATTRBLOCK, /* next token should be an attribute or block */
5301 XATTRTERM, /* next token should be an attribute, or block in a term */
5305 XTERMORDORDOR /* evil hack */
5306 /* update exp_name[] in toke.c if adding to this enum */
5309 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5311 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5312 special and there is no need for HINT_PRIVATE_MASK for COPs
5313 However, bitops store HINT_INTEGER in their op_private.
5315 NOTE: The typical module using these has the bit value hard-coded, so don't
5316 blindly change the values of these.
5318 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5319 is for "use locale 'FOO'" which excludes some categories. It requires going
5320 to %^H to find out which are in and which are out. This could be extended
5321 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5323 #define HINT_INTEGER 0x00000001 /* integer pragma */
5324 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5325 #define HINT_LOCALE 0x00000004 /* locale pragma */
5326 #define HINT_BYTES 0x00000008 /* bytes pragma */
5327 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5329 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5330 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5331 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5333 #define HINT_BLOCK_SCOPE 0x00000100
5334 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5335 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5336 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5338 /* The HINT_NEW_* constants are used by the overload pragma */
5339 #define HINT_NEW_INTEGER 0x00001000
5340 #define HINT_NEW_FLOAT 0x00002000
5341 #define HINT_NEW_BINARY 0x00004000
5342 #define HINT_NEW_STRING 0x00008000
5343 #define HINT_NEW_RE 0x00010000
5344 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5345 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5346 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5348 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5349 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5351 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5352 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5354 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5356 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5358 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5360 /* Note: Used for HINT_M_VMSISH_*,
5361 currently defined by vms/vmsish.h:
5366 /* The following are stored in $^H{sort}, not in PL_hints */
5367 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5368 #define HINT_SORT_UNSTABLE 0x00000200
5370 /* flags for PL_sawampersand */
5372 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5373 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5374 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5376 #ifndef PERL_SAWAMPERSAND
5377 # define PL_sawampersand \
5378 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5381 /* Used for debugvar magic */
5382 #define DBVARMG_SINGLE 0
5383 #define DBVARMG_TRACE 1
5384 #define DBVARMG_SIGNAL 2
5385 #define DBVARMG_COUNT 3
5387 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5388 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5389 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5391 /* Various states of the input record separator SV (rs) */
5392 #define RsSNARF(sv) (! SvOK(sv))
5393 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5394 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5395 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5397 /* A struct for keeping various DEBUGGING related stuff,
5398 * neatly packed. Currently only scratch variables for
5399 * constructing debug output are included. Needed always,
5400 * not just when DEBUGGING, though, because of the re extension. c*/
5401 struct perl_debug_pad {
5405 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5406 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5407 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5410 /* Enable variables which are pointers to functions */
5411 typedef void (*peep_t)(pTHX_ OP* o);
5412 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5413 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5414 char* strend, char* strbeg, I32 minend,
5415 SV* screamer, void* data, U32 flags);
5416 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5417 char *strpos, char *strend,
5419 re_scream_pos_data *d);
5420 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5421 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5422 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5423 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5425 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5426 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5427 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5428 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5429 typedef void (*XSINIT_t) (pTHX);
5430 typedef void (*ATEXIT_t) (pTHX_ void*);
5431 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5433 typedef OP* (*Perl_ppaddr_t)(pTHX);
5434 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5435 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5436 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5437 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5439 typedef void(*globhook_t)(pTHX);
5441 #define KEYWORD_PLUGIN_DECLINE 0
5442 #define KEYWORD_PLUGIN_STMT 1
5443 #define KEYWORD_PLUGIN_EXPR 2
5445 /* Interpreter exitlist entry */
5446 typedef struct exitlistentry {
5447 void (*fn) (pTHX_ void*);
5449 } PerlExitListEntry;
5451 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5452 /* These have to be before perlvars.h */
5453 #if !defined(HAS_SIGACTION) && defined(VMS)
5454 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5456 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5457 #if defined(KILL_BY_SIGPRC)
5458 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5461 #if !defined(MULTIPLICITY)
5463 struct interpreter {
5469 /* If we have multiple interpreters define a struct
5470 holding variables which must be per-interpreter
5471 If we don't have threads anything that would have
5472 be per-thread is per-interpreter.
5475 /* Set up PERLVAR macros for populating structs */
5476 # define PERLVAR(prefix,var,type) type prefix##var;
5478 /* 'var' is an array of length 'n' */
5479 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5481 /* initialize 'var' to init' */
5482 # define PERLVARI(prefix,var,type,init) type prefix##var;
5484 /* like PERLVARI, but make 'var' a const */
5485 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5487 struct interpreter {
5488 # include "intrpvar.h"
5491 EXTCONST U16 PL_interp_size
5492 INIT(sizeof(struct interpreter));
5494 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5495 STRUCT_OFFSET(struct interpreter, member) + \
5496 sizeof(((struct interpreter*)0)->member)
5498 /* This will be useful for subsequent releases, because this has to be the
5499 same in your libperl as in main(), else you have a mismatch and must abort.
5501 EXTCONST U16 PL_interp_size_5_18_0
5502 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5505 # ifdef PERL_GLOBAL_STRUCT
5506 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5507 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5510 # include "perlvars.h"
5513 EXTCONST U16 PL_global_struct_size
5514 INIT(sizeof(struct perl_vars));
5517 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5518 EXT struct perl_vars PL_Vars;
5519 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5520 # undef PERL_GET_VARS
5521 # define PERL_GET_VARS() PL_VarsPtr
5522 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5523 # else /* PERL_CORE */
5524 # if !defined(__GNUC__) || !defined(WIN32)
5527 struct perl_vars *PL_VarsPtr;
5528 # define PL_Vars (*((PL_VarsPtr) \
5529 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5530 # endif /* PERL_CORE */
5531 # endif /* PERL_GLOBAL_STRUCT */
5533 /* Done with PERLVAR macros for now ... */
5539 #endif /* MULTIPLICITY */
5541 struct tempsym; /* defined in pp_pack.c */
5548 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5549 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5552 # include "malloc_ctl.h"
5556 * This provides a layer of functions and macros to ensure extensions will
5557 * get to use the same RTL functions as the core.
5560 # include "win32iop.h"
5566 /* this has structure inits, so it cannot be included before here */
5569 /* The following must follow proto.h as #defines mess up syntax */
5571 #if !defined(PERL_FOR_X2P)
5572 # include "embedvar.h"
5575 /* Now include all the 'global' variables
5576 * If we don't have threads or multiple interpreters
5577 * these include variables that would have been their struct-s
5580 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5581 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5582 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5583 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5585 #if !defined(MULTIPLICITY)
5587 # include "intrpvar.h"
5589 # define PL_sv_yes (PL_sv_immortals[0])
5590 # define PL_sv_undef (PL_sv_immortals[1])
5591 # define PL_sv_no (PL_sv_immortals[2])
5592 # define PL_sv_zero (PL_sv_immortals[3])
5596 /* All core uses now exterminated. Ensure no zombies can return: */
5600 /* Now all the config stuff is setup we can include embed.h
5601 In particular, need the relevant *ish file included already, as it may
5602 define HAVE_INTERP_INTERN */
5605 #ifndef PERL_GLOBAL_STRUCT
5608 # include "perlvars.h"
5618 #if !defined(MULTIPLICITY)
5619 /* Set up PERLVAR macros for populating structs */
5620 # define PERLVAR(prefix,var,type) type prefix##var;
5621 /* 'var' is an array of length 'n' */
5622 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5623 /* initialize 'var' to init' */
5624 # define PERLVARI(prefix,var,type,init) type prefix##var;
5625 /* like PERLVARI, but make 'var' a const */
5626 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5628 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5629 struct PerlHandShakeInterpreter {
5630 # include "intrpvar.h"
5640 /* dummy variables that hold pointers to both runops functions, thus forcing
5641 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5643 EXTCONST runops_proc_t PL_runops_std
5644 INIT(Perl_runops_standard);
5645 EXTCONST runops_proc_t PL_runops_dbg
5646 INIT(Perl_runops_debug);
5648 #define EXT_MGVTBL EXTCONST MGVTBL
5650 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5651 #define PERL_MAGIC_VALUE_MAGIC 0x80
5652 #define PERL_MAGIC_VTABLE_MASK 0x3F
5653 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5654 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5655 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5656 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5658 #include "mg_vtable.h"
5661 EXTCONST U8 PL_magic_data[256] =
5663 # include "umg_data.h"
5665 # include "mg_data.h"
5669 EXTCONST U8 PL_magic_data[256];
5673 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5675 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5677 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5679 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5681 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5683 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5685 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5689 EXTCONST bool PL_valid_types_IVX[];
5690 EXTCONST bool PL_valid_types_NVX[];
5691 EXTCONST bool PL_valid_types_PVX[];
5692 EXTCONST bool PL_valid_types_RV[];
5693 EXTCONST bool PL_valid_types_IV_set[];
5694 EXTCONST bool PL_valid_types_NV_set[];
5698 /* In C99 we could use designated (named field) union initializers.
5699 * In C89 we need to initialize the member declared first.
5700 * In C++ we need extern C initializers.
5702 * With the U8_NV version you will want to have inner braces,
5703 * while with the NV_U8 use just the NV. */
5705 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5706 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5708 /* if these never got defined, they need defaults */
5709 #ifndef PERL_SET_CONTEXT
5710 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5713 #ifndef PERL_GET_CONTEXT
5714 # define PERL_GET_CONTEXT PERL_GET_INTERP
5717 #ifndef PERL_GET_THX
5718 # define PERL_GET_THX ((void*)NULL)
5721 #ifndef PERL_SET_THX
5722 # define PERL_SET_THX(t) NOOP
5727 /* The tables below are adapted from
5728 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5731 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5733 Permission is hereby granted, free of charge, to any person obtaining a copy of
5734 this software and associated documentation files (the "Software"), to deal in
5735 the Software without restriction, including without limitation the rights to
5736 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5737 of the Software, and to permit persons to whom the Software is furnished to do
5738 so, subject to the following conditions:
5740 The above copyright notice and this permission notice shall be included in all
5741 copies or substantial portions of the Software.
5743 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5744 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5745 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5746 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5747 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5748 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5754 # if 0 /* This is the original table given in
5755 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5756 static U8 utf8d_C9[] = {
5757 /* The first part of the table maps bytes to character classes that
5758 * to reduce the size of the transition table and create bitmasks. */
5759 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*/
5760 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*/
5761 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*/
5762 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*/
5763 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*/
5764 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*/
5765 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*/
5766 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*/
5768 /* The second part is a transition table that maps a combination
5769 * of a state of the automaton and a character class to a state. */
5770 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5771 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5772 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5773 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5774 12,36,12,12,12,12,12,12,12,12,12,12
5779 /* This is a version of the above table customized for Perl that doesn't
5780 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5781 * machines). The classes have been renumbered so that the patterns are more
5782 * evident in the table. The class numbers for start bytes are constrained so
5783 * that they can be used as a shift count for masking off the leading one bits.
5784 * It would make the code simpler if start byte FF could also be handled, but
5785 * doing so would mean adding nodes for each of continuation bytes 6-12
5786 * remaining, and two more nodes for overlong detection (a total of 9), and
5787 * there is room only for 4 more nodes unless we make the array U16 instead of
5792 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5794 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5795 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5796 * 88-8F 10 Not legal immediately after start bytes E0 F0
5797 * 90-9F 11 Not legal immediately after start byte E0
5809 * FE 17 (or 1 on 32-bit machines, since it overflows)
5813 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5814 /* The first part of the table maps bytes to character classes to reduce
5815 * the size of the transition table and create bitmasks. */
5816 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5817 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5818 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5819 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5820 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5821 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5822 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5823 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5824 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5825 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5826 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5827 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5828 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5829 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5830 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5831 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5839 /* The second part is a transition table that maps a combination
5840 * of a state of the automaton and a character class to a new state, called a
5841 * node. The nodes are:
5842 * N0 The initial state, and final accepting one.
5843 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5844 * immediately when the start byte indicates a two-byte sequence
5845 * N2 Any two continuation bytes left.
5846 * N3 Any three continuation bytes left.
5847 * N4 Any four continuation bytes left.
5848 * N5 Any five continuation bytes left.
5849 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5850 * the other continuations transition to N1
5851 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5852 * the other continuations transition to N2
5853 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5854 * the other continuations transition to N3
5855 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5856 * the other continuations transition to N4
5857 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5858 * the other continuations transition to N5
5859 * 1 Reject. All transitions not mentioned above (except the single
5860 * byte ones (as they are always legal) are to this state.
5863 # define NUM_CLASSES 18
5865 # define N1 ((N0) + NUM_CLASSES)
5866 # define N2 ((N1) + NUM_CLASSES)
5867 # define N3 ((N2) + NUM_CLASSES)
5868 # define N4 ((N3) + NUM_CLASSES)
5869 # define N5 ((N4) + NUM_CLASSES)
5870 # define N6 ((N5) + NUM_CLASSES)
5871 # define N7 ((N6) + NUM_CLASSES)
5872 # define N8 ((N7) + NUM_CLASSES)
5873 # define N9 ((N8) + NUM_CLASSES)
5874 # define N10 ((N9) + NUM_CLASSES)
5876 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5877 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5878 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5879 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5880 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5881 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5882 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5884 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5885 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5886 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5887 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5888 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5891 /* And below is a version of the above table that accepts only strict UTF-8.
5892 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5893 * passes this dfa, it will be for a well-formed, non-problematic code point
5894 * that can be returned immediately.
5896 * The "Implementation details" portion of
5897 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5898 * the first portion of the table maps each possible byte into a character
5899 * class. And that the classes for those bytes which are start bytes have been
5900 * carefully chosen so they serve as well to be used as a shift value to mask
5901 * off the leading 1 bits of the start byte. Unfortunately the addition of
5902 * being able to distinguish non-characters makes this not fully work. This is
5903 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5905 * 1) ED because it could be a surrogate
5906 * 2) EF because it could be a non-character
5907 * 3) the rest, which can never evaluate to a problematic code point.
5909 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5910 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5911 * But that only allows two categories, and we need three. khw made the
5912 * decision to therefore treat the ED start byte as an error, so that the dfa
5913 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5914 * distinguish EF vs the rest. Then special code is used to deal with ED,
5915 * that's executed only when the dfa drops out. The code points started by ED
5916 * are half surrogates, and half hangul syllables. This means that 2048 of the
5917 * the hangul syllables (about 18%) take longer than all other non-problematic
5918 * code points to handle.
5920 * The changes to handle non-characters requires the addition of states and
5921 * classes to the dfa. (See the section on "Mapping bytes to character
5922 * classes" in the linked-to document for further explanation of the original
5946 * F1-F3 6 (6 bits can be stripped)
5947 * F4 5 (only 5 can be stripped)
5951 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5952 /* The first part of the table maps bytes to character classes to reduce
5953 * the size of the transition table and create bitmasks. */
5954 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5955 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5956 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5957 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5958 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5959 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5960 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5961 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5962 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5963 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5964 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5965 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5966 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5967 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5968 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5969 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5971 /* The second part is a transition table that maps a combination
5972 * of a state of the automaton and a character class to a new state, called a
5973 * node. The nodes are:
5974 * N0 The initial state, and final accepting one.
5975 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5976 * immediately when the start byte indicates a two-byte sequence
5977 * N2 Any two continuation bytes left.
5978 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5979 * the other continuations transition to state N1
5980 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5981 * the other continuations transitions to N1
5982 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5983 * [9AB]F transition to N10; the other continuations to N2.
5984 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5985 * to N10; the other continuations to N2.
5986 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5987 * (non-unicode); 8F transitions to N10; the other continuations to N2
5988 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5989 * (non-characters); the other continuations transition to N0.
5990 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
5991 * (non-characters); the other continuations transition to N0.
5992 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
5993 * Continuation byte BF transitions to N11; the other continuations to
5995 * N11 Initial sequence is the two bytes given in N10 followed by BF.
5996 * Continuation bytes BE and BF are illegal (non-characters); the other
5997 * continuations transition to N0.
5998 * 1 Reject. All transitions not mentioned above (except the single
5999 * byte ones (as they are always legal) are to this state.
6013 # define NUM_CLASSES 19
6015 # define N1 ((N0) + NUM_CLASSES)
6016 # define N2 ((N1) + NUM_CLASSES)
6017 # define N3 ((N2) + NUM_CLASSES)
6018 # define N4 ((N3) + NUM_CLASSES)
6019 # define N5 ((N4) + NUM_CLASSES)
6020 # define N6 ((N5) + NUM_CLASSES)
6021 # define N7 ((N6) + NUM_CLASSES)
6022 # define N8 ((N7) + NUM_CLASSES)
6023 # define N9 ((N8) + NUM_CLASSES)
6024 # define N10 ((N9) + NUM_CLASSES)
6025 # define N11 ((N10) + NUM_CLASSES)
6027 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
6028 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6029 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6030 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
6032 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
6033 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6034 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6035 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6036 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6037 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6038 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6039 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6040 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6043 /* And below is yet another version of the above tables that accepts only UTF-8
6044 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6045 * it allows non-characters. This is isomorphic to the original table
6046 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6060 * F1-F3 6 (6 bits can be stripped)
6061 * F4 5 (only 5 can be stripped)
6065 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6066 /* The first part of the table maps bytes to character classes to reduce
6067 * the size of the transition table and create bitmasks. */
6068 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6069 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6070 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6071 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6072 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6073 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6074 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6075 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6076 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6077 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6078 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6079 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6080 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6081 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6082 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6083 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6085 /* The second part is a transition table that maps a combination
6086 * of a state of the automaton and a character class to a new state, called a
6087 * node. The nodes are:
6088 * N0 The initial state, and final accepting one.
6089 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6090 * immediately when the start byte indicates a two-byte sequence
6091 * N2 Any two continuation bytes left.
6092 * N3 Any three continuation bytes left.
6093 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6094 * the other continuations transition to state N1
6095 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6096 * so are illegal. The other continuations transition to state N1.
6097 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6098 * the other continuations transition to N2
6099 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6100 * (non-unicode); the other continuations transition to N2
6101 * 1 Reject. All transitions not mentioned above (except the single
6102 * byte ones (as they are always legal) are to this state.
6114 # define NUM_CLASSES 12
6116 # define N1 ((N0) + NUM_CLASSES)
6117 # define N2 ((N1) + NUM_CLASSES)
6118 # define N3 ((N2) + NUM_CLASSES)
6119 # define N4 ((N3) + NUM_CLASSES)
6120 # define N5 ((N4) + NUM_CLASSES)
6121 # define N6 ((N5) + NUM_CLASSES)
6122 # define N7 ((N6) + NUM_CLASSES)
6124 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6125 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6126 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6127 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6128 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6130 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6131 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6132 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6133 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6136 # else /* End of is DOINIT */
6138 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6139 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6140 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6143 #endif /* end of isn't EBCDIC */
6145 #ifndef PERL_NO_INLINE_FUNCTIONS
6146 /* Static inline funcs that depend on includes and declarations above.
6147 Some of these reference functions in the perl object files, and some
6148 compilers aren't smart enough to eliminate unused static inline
6149 functions, so including this file in source code can cause link errors
6150 even if the source code uses none of the functions. Hence including these
6151 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
6152 (obviously) result in unworkable XS code, but allows simple probing code
6153 to continue to work, because it permits tests to include the perl headers
6154 for definitions without creating a link dependency on the perl library
6155 (which may not exist yet).
6158 # include "inline.h"
6161 #include "overload.h"
6170 CV* table[NofAMmeth];
6172 struct am_table_short {
6178 typedef struct am_table AMT;
6179 typedef struct am_table_short AMTS;
6181 #define AMGfallNEVER 1
6183 #define AMGfallYES 3
6185 #define AMTf_AMAGIC 1
6186 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6187 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6188 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6190 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6193 * some compilers like to redefine cos et alia as faster
6194 * (and less accurate?) versions called F_cos et cetera (Quidquid
6195 * latine dictum sit, altum viditur.) This trick collides with
6196 * the Perl overloading (amg). The following #defines fool both.
6201 # define F_atan2_amg atan2_amg
6204 # define F_cos_amg cos_amg
6207 # define F_exp_amg exp_amg
6210 # define F_log_amg log_amg
6213 # define F_pow_amg pow_amg
6216 # define F_sin_amg sin_amg
6219 # define F_sqrt_amg sqrt_amg
6221 #endif /* _FASTMATH */
6223 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6224 PERLDBf_NOOPT | PERLDBf_INTER | \
6225 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6226 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6228 /* No _NONAME, _GOTO */
6229 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6230 #define PERLDBf_LINE 0x02 /* Keep line # */
6231 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6232 #define PERLDBf_INTER 0x08 /* Preserve more data for
6233 later inspections */
6234 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6235 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6236 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6237 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6238 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6239 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6240 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6241 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6242 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6244 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6245 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6246 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6247 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6248 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6249 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6250 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6251 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6252 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6253 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6254 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6255 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6256 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6258 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6261 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6262 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6263 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6264 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6265 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6266 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6267 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6268 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6270 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6271 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6272 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6273 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6274 # define USER_PROP_MUTEX_INIT NOOP
6275 # define USER_PROP_MUTEX_LOCK NOOP
6276 # define USER_PROP_MUTEX_UNLOCK NOOP
6277 # define USER_PROP_MUTEX_TERM NOOP
6280 #ifdef USE_LOCALE /* These locale things are all subject to change */
6282 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6284 # define IN_LOCALE_RUNTIME (PL_curcop \
6285 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6287 /* Returns TRUE if either form of the locale pragma is in effect */
6288 # define IN_SOME_LOCALE_FORM_RUNTIME \
6289 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6291 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6292 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6293 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6296 =head1 Locale-related functions and macros
6298 =for apidoc Amn|bool|IN_LOCALE
6300 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6301 locale>>) is in effect.
6303 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6305 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6306 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6308 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6310 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6311 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6316 # define IN_LOCALE \
6317 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6318 # define IN_SOME_LOCALE_FORM \
6319 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6320 : IN_SOME_LOCALE_FORM_RUNTIME)
6322 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6323 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6325 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6326 # define IN_LC_PARTIAL_RUNTIME \
6327 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6329 # define IN_LC_COMPILETIME(category) \
6330 ( IN_LC_ALL_COMPILETIME \
6331 || ( IN_LC_PARTIAL_COMPILETIME \
6332 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6333 # define IN_LC_RUNTIME(category) \
6334 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6335 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6336 # define IN_LC(category) \
6337 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6339 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6341 /* This internal macro should be called from places that operate under
6342 * locale rules. If there is a problem with the current locale that
6343 * hasn't been raised yet, it will output a warning this time. Because
6344 * this will so rarely be true, there is no point to optimize for time;
6345 * instead it makes sense to minimize space used and do all the work in
6346 * the rarely called function */
6347 # ifdef USE_LOCALE_CTYPE
6348 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6350 if (UNLIKELY(PL_warn_locale)) { \
6351 Perl__warn_problematic_locale(); \
6355 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6359 /* These two internal macros are called when a warning should be raised,
6360 * and will do so if enabled. The first takes a single code point
6361 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6362 * string, and an end position which it won't try to read past */
6363 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6365 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6366 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6367 "Wide character (U+%" UVXf ") in %s",\
6368 (UV) cp, OP_DESC(PL_op)); \
6372 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6373 STMT_START { /* Check if to warn before doing the conversion work */\
6374 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6375 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6376 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6377 "Wide character (U+%" UVXf ") in %s", \
6379 ? UNICODE_REPLACEMENT \
6385 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6386 #else /* No locale usage */
6387 # define IN_LOCALE_RUNTIME 0
6388 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6389 # define IN_LOCALE_COMPILETIME 0
6390 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6391 # define IN_LOCALE 0
6392 # define IN_SOME_LOCALE_FORM 0
6393 # define IN_LC_ALL_COMPILETIME 0
6394 # define IN_LC_ALL_RUNTIME 0
6395 # define IN_LC_PARTIAL_COMPILETIME 0
6396 # define IN_LC_PARTIAL_RUNTIME 0
6397 # define IN_LC_COMPILETIME(category) 0
6398 # define IN_LC_RUNTIME(category) 0
6399 # define IN_LC(category) 0
6400 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6401 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6402 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6406 /* Locale/thread synchronization macros. These aren't needed if using
6407 * thread-safe locale operations, except if something is broken */
6408 #if defined(USE_LOCALE) \
6409 && defined(USE_ITHREADS) \
6410 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6412 /* We have a locale object holding the 'C' locale for Posix 2008 */
6413 # ifndef USE_POSIX_2008_LOCALE
6414 # define _LOCALE_TERM_POSIX_2008 NOOP
6416 # define _LOCALE_TERM_POSIX_2008 \
6418 if (PL_C_locale_obj) { \
6419 /* Make sure we aren't using the locale \
6420 * space we are about to free */ \
6421 uselocale(LC_GLOBAL_LOCALE); \
6422 freelocale(PL_C_locale_obj); \
6423 PL_C_locale_obj = (locale_t) NULL; \
6428 /* This is used as a generic lock for locale operations. For example this is
6429 * used when calling nl_langinfo() so that another thread won't zap the
6430 * contents of its buffer before it gets saved; and it's called when changing
6431 * the locale of LC_MESSAGES. On some systems the latter can cause the
6432 * nl_langinfo buffer to be zapped under a race condition.
6434 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6435 * should be contained entirely within the locked portion of LC_NUMERIC. This
6436 * mutex should be used only in very short sections of code, while
6437 * LC_NUMERIC_LOCK may span more operations. By always following this
6438 * convention, deadlock should be impossible. But if necessary, the two
6439 * mutexes could be combined.
6441 * Actually, the two macros just below with the '_V' suffixes are used in just
6442 * a few places where there is a broken localeconv(), but otherwise things are
6443 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6444 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6445 # define LOCALE_LOCK_V \
6447 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6448 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6449 MUTEX_LOCK(&PL_locale_mutex); \
6451 # define LOCALE_UNLOCK_V \
6453 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6454 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6455 MUTEX_UNLOCK(&PL_locale_mutex); \
6458 /* On windows, we just need the mutex for LOCALE_LOCK */
6459 # ifdef TS_W32_BROKEN_LOCALECONV
6460 # define LOCALE_LOCK NOOP
6461 # define LOCALE_UNLOCK NOOP
6462 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6463 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6464 # define LC_NUMERIC_LOCK(cond)
6465 # define LC_NUMERIC_UNLOCK
6467 # define LOCALE_LOCK LOCALE_LOCK_V
6468 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6470 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6472 # define LOCALE_INIT STMT_START { \
6473 MUTEX_INIT(&PL_locale_mutex); \
6474 MUTEX_INIT(&PL_lc_numeric_mutex); \
6477 # define LOCALE_TERM STMT_START { \
6478 MUTEX_DESTROY(&PL_locale_mutex); \
6479 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6480 _LOCALE_TERM_POSIX_2008; \
6483 /* This mutex is used to create critical sections where we want the
6484 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6485 * the underlying locale, so that other threads interrupting this one don't
6486 * change it to the wrong state before we've had a chance to complete our
6487 * operation. It can stay locked over an entire printf operation, for
6488 * example. And so is made distinct from the LOCALE_LOCK mutex.
6490 * This simulates kind of a general semaphore. The current thread will
6491 * lock the mutex if the per-thread variable is zero, and then increments
6492 * that variable. Each corresponding UNLOCK decrements the variable until
6493 * it is 0, at which point it actually unlocks the mutex. Since the
6494 * variable is per-thread, there is no race with other threads.
6496 * The single argument is a condition to test for, and if true, to panic,
6497 * as this would be an attempt to complement the LC_NUMERIC state, and
6498 * we're not supposed to because it's locked.
6500 * Clang improperly gives warnings for this, if not silenced:
6501 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6503 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6504 CLANG_DIAG_IGNORE(-Wthread-safety) \
6506 if (PL_lc_numeric_mutex_depth <= 0) { \
6507 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6508 PL_lc_numeric_mutex_depth = 1; \
6509 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6510 "%s: %d: locking lc_numeric; depth=1\n", \
6511 __FILE__, __LINE__)); \
6514 PL_lc_numeric_mutex_depth++; \
6515 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6516 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6517 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6518 if (cond_to_panic_if_already_locked) { \
6519 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6520 " LC_NUMERIC incompatibly", \
6521 __FILE__, __LINE__); \
6526 # define LC_NUMERIC_UNLOCK \
6528 if (PL_lc_numeric_mutex_depth <= 1) { \
6529 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6530 PL_lc_numeric_mutex_depth = 0; \
6531 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6532 "%s: %d: unlocking lc_numeric; depth=0\n", \
6533 __FILE__, __LINE__)); \
6536 PL_lc_numeric_mutex_depth--; \
6537 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6538 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6539 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6544 # endif /* End of needs locking LC_NUMERIC */
6545 #else /* Below is no locale sync needed */
6546 # define LOCALE_INIT
6547 # define LOCALE_LOCK
6548 # define LOCALE_LOCK_V
6549 # define LOCALE_UNLOCK
6550 # define LOCALE_UNLOCK_V
6551 # define LC_NUMERIC_LOCK(cond)
6552 # define LC_NUMERIC_UNLOCK
6553 # define LOCALE_TERM
6556 #ifdef USE_LOCALE_NUMERIC
6558 /* These macros are for toggling between the underlying locale (UNDERLYING or
6559 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6560 * locale if the underlying locale is indistinguishable from it in the numeric
6561 * operations used by Perl, namely the decimal point, and even the thousands
6564 =head1 Locale-related functions and macros
6566 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6568 This macro should be used as a statement. It declares a private variable
6569 (whose name begins with an underscore) that is needed by the other macros in
6570 this section. Failing to include this correctly should lead to a syntax error.
6571 For compatibility with C89 C compilers it should be placed in a block before
6572 any executable statements.
6574 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6576 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
6577 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6578 underlying locale. (The perl interpreter could be wrong about what the
6579 underlying locale actually is if some C or XS code has called the C library
6580 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6581 this macro will update perl's records.)
6583 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6584 declare at compile time a private variable used by this macro. This macro
6585 should be called as a single statement, not an expression, but with an empty
6586 argument list, like this:
6589 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6591 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6593 RESTORE_LC_NUMERIC();
6597 The private variable is used to save the current locale state, so
6598 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6600 On threaded perls not operating with thread-safe functionality, this macro uses
6601 a mutex to force a critical section. Therefore the matching RESTORE should be
6602 close by, and guaranteed to be called.
6604 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6606 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6607 This locale category is generally kept set to a locale where the decimal radix
6608 character is a dot, and the separator between groups of digits is empty. This
6609 is because most XS code that reads floating point numbers is expecting them to
6612 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6613 aware of locale if the call to the XS or C code from the Perl program is
6614 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6615 instead from outside such scope.
6617 This macro is the start of wrapping the C or XS code; the wrap ending is done
6618 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6619 the state can be changed that will adversely affect other XS code.
6621 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6622 declare at compile time a private variable used by this macro. This macro
6623 should be called as a single statement, not an expression, but with an empty
6624 argument list, like this:
6627 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6629 STORE_LC_NUMERIC_SET_TO_NEEDED();
6631 RESTORE_LC_NUMERIC();
6635 On threaded perls not operating with thread-safe functionality, this macro uses
6636 a mutex to force a critical section. Therefore the matching RESTORE should be
6637 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6638 for a more contained way to ensure that.
6640 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6642 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6643 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6644 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6645 cannot have changed since the precalculation.
6647 =for apidoc Am|void|RESTORE_LC_NUMERIC
6649 This is used in conjunction with one of the macros
6650 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6651 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6652 C<LC_NUMERIC> state.
6654 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6655 declare at compile time a private variable used by this macro and the two
6656 C<STORE> ones. This macro should be called as a single statement, not an
6657 expression, but with an empty argument list, like this:
6660 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6662 RESTORE_LC_NUMERIC();
6666 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6668 This macro invokes the supplied statement or block within the context
6669 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6672 WITH_LC_NUMERIC_SET_TO_NEEDED(
6673 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6679 #ifdef USE_LOCALE_NUMERIC
6680 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6681 STORE_LC_NUMERIC_SET_TO_NEEDED();
6683 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6684 #ifdef USE_LOCALE_NUMERIC
6685 RESTORE_LC_NUMERIC();
6689 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6691 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6692 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6693 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6694 cannot have changed since the precalculation.
6700 /* If the underlying numeric locale has a non-dot decimal point or has a
6701 * non-empty floating point thousands separator, the current locale is instead
6702 * generally kept in the C locale instead of that underlying locale. The
6703 * current status is known by looking at two words. One is non-zero if the
6704 * current numeric locale is the standard C/POSIX one or is indistinguishable
6705 * from C. The other is non-zero if the current locale is the underlying
6706 * locale. Both can be non-zero if, as often happens, the underlying locale is
6707 * C or indistinguishable from it.
6709 * khw believes the reason for the variables instead of the bits in a single
6710 * word is to avoid having to have masking instructions. */
6712 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6714 /* We can lock the category to stay in the C locale, making requests to the
6715 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6717 # define _NOT_IN_NUMERIC_UNDERLYING \
6718 (! PL_numeric_underlying && PL_numeric_standard < 2)
6720 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6721 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6723 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6725 bool _in_lc_numeric = (in); \
6727 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6728 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6729 if (_in_lc_numeric) { \
6730 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6731 Perl_set_numeric_underlying(aTHX); \
6732 _restore_LC_NUMERIC_function \
6733 = &Perl_set_numeric_standard; \
6737 if (_NOT_IN_NUMERIC_STANDARD) { \
6738 Perl_set_numeric_standard(aTHX); \
6739 _restore_LC_NUMERIC_function \
6740 = &Perl_set_numeric_underlying; \
6745 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6746 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6748 # define RESTORE_LC_NUMERIC() \
6750 if (_restore_LC_NUMERIC_function) { \
6751 _restore_LC_NUMERIC_function(aTHX); \
6753 LC_NUMERIC_UNLOCK; \
6756 /* The next two macros set unconditionally. These should be rarely used, and
6757 * only after being sure that this is what is needed */
6758 # define SET_NUMERIC_STANDARD() \
6760 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6761 "%s: %d: lc_numeric standard=%d\n", \
6762 __FILE__, __LINE__, PL_numeric_standard)); \
6763 Perl_set_numeric_standard(aTHX); \
6764 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6765 "%s: %d: lc_numeric standard=%d\n", \
6766 __FILE__, __LINE__, PL_numeric_standard)); \
6769 # define SET_NUMERIC_UNDERLYING() \
6771 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6772 Perl_set_numeric_underlying(aTHX); \
6776 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6777 * the RESTORE_foo ones called to switch back, but only if need be */
6778 # define STORE_LC_NUMERIC_SET_STANDARD() \
6780 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6781 if (_NOT_IN_NUMERIC_STANDARD) { \
6782 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6783 Perl_set_numeric_standard(aTHX); \
6787 /* Rarely, we want to change to the underlying locale even outside of 'use
6788 * locale'. This is principally in the POSIX:: functions */
6789 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6791 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6792 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6793 Perl_set_numeric_underlying(aTHX); \
6794 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6798 /* Lock/unlock to the C locale until unlock is called. This needs to be
6799 * recursively callable. [perl #128207] */
6800 # define LOCK_LC_NUMERIC_STANDARD() \
6802 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6803 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6804 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6805 __ASSERT_(PL_numeric_standard) \
6806 PL_numeric_standard++; \
6809 # define UNLOCK_LC_NUMERIC_STANDARD() \
6811 if (PL_numeric_standard > 1) { \
6812 PL_numeric_standard--; \
6817 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6818 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6819 __FILE__, __LINE__, PL_numeric_standard)); \
6822 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6824 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6825 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6827 RESTORE_LC_NUMERIC(); \
6830 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6831 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6833 #else /* !USE_LOCALE_NUMERIC */
6835 # define SET_NUMERIC_STANDARD()
6836 # define SET_NUMERIC_UNDERLYING()
6837 # define IS_NUMERIC_RADIX(a, b) (0)
6838 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
6839 # define STORE_LC_NUMERIC_SET_STANDARD()
6840 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6841 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6842 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6843 # define RESTORE_LC_NUMERIC()
6844 # define LOCK_LC_NUMERIC_STANDARD()
6845 # define UNLOCK_LC_NUMERIC_STANDARD()
6846 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6847 STMT_START { block; } STMT_END
6848 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6849 STMT_START { block; } STMT_END
6851 #endif /* !USE_LOCALE_NUMERIC */
6853 #define Atof my_atof
6857 =head1 Numeric functions
6859 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6861 This is a synonym for L</my_strtod>.
6863 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6865 Platform and configuration independent C<strtol>. This expands to the
6866 appropriate C<strotol>-like function based on the platform and F<Configure>
6867 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6870 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6872 Platform and configuration independent C<strtoul>. This expands to the
6873 appropriate C<strotoul>-like function based on the platform and F<Configure>
6874 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6881 #define Strtod my_strtod
6883 #if defined(HAS_STRTOD) \
6884 || defined(USE_QUADMATH) \
6885 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6886 && defined(USE_LONG_DOUBLE))
6887 # define Perl_strtod Strtod
6890 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6891 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6893 # define strtoll __strtoll /* secret handshake */
6895 # if defined(WIN64) && defined(_MSC_VER)
6896 # define strtoll _strtoi64 /* secret handshake */
6898 # if !defined(Strtol) && defined(HAS_STRTOLL)
6899 # define Strtol strtoll
6901 # if !defined(Strtol) && defined(HAS_STRTOQ)
6902 # define Strtol strtoq
6904 /* is there atoq() anywhere? */
6906 #if !defined(Strtol) && defined(HAS_STRTOL)
6907 # define Strtol strtol
6910 /* It would be more fashionable to use Strtol() to define atol()
6911 * (as is done for Atoul(), see below) but for backward compatibility
6912 * we just assume atol(). */
6913 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6914 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6916 # define atoll _atoi64 /* secret handshake */
6924 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6925 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6927 # define strtoull __strtoull /* secret handshake */
6929 # if defined(WIN64) && defined(_MSC_VER)
6930 # define strtoull _strtoui64 /* secret handshake */
6932 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6933 # define Strtoul strtoull
6935 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6936 # define Strtoul strtouq
6938 /* is there atouq() anywhere? */
6940 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6941 # define Strtoul strtoul
6943 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6944 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6947 # define Atoul(s) Strtoul(s, NULL, 10)
6950 #define grok_bin(s,lp,fp,rp) \
6951 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6952 #define grok_oct(s,lp,fp,rp) \
6953 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6954 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6955 #define grok_hex(s,lp,fp,rp) \
6956 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6958 #ifndef PERL_SCRIPT_MODE
6959 #define PERL_SCRIPT_MODE "r"
6962 /* not used. Kept as a NOOP for backcompat */
6963 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6966 * Some nonpreemptive operating systems find it convenient to
6967 * check for asynchronous conditions after each op execution.
6968 * Keep this check simple, or it may slow down execution
6973 # ifndef PERL_ASYNC_CHECK
6974 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6978 #ifndef PERL_ASYNC_CHECK
6979 # define PERL_ASYNC_CHECK() NOOP
6983 * On some operating systems, a memory allocation may succeed,
6984 * but put the process too close to the system's comfort limit.
6985 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6988 #ifndef PERL_ALLOC_CHECK
6989 #define PERL_ALLOC_CHECK(p) NOOP
6993 # include <sys/ipc.h>
6994 # include <sys/sem.h>
6995 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6998 struct semid_ds *buf;
6999 unsigned short *array;
7002 # ifdef USE_SEMCTL_SEMUN
7003 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
7004 union gccbug_semun {
7006 struct semid_ds *buf;
7007 unsigned short *array;
7010 # define semun gccbug_semun
7012 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
7013 # elif defined(USE_SEMCTL_SEMID_DS)
7014 # ifdef EXTRA_F_IN_SEMUN_BUF
7015 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
7017 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
7023 * Boilerplate macros for initializing and accessing interpreter-local
7024 * data from C. All statics in extensions should be reworked to use
7025 * this, if you want to make the extension thread-safe. See
7026 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
7027 * and perlxs.pod for more.
7029 * Code that uses these macros is responsible for the following:
7030 * 1. #define MY_CXT_KEY to a unique string, e.g.
7031 * "DynaLoader::_guts" XS_VERSION
7032 * XXX in the current implementation, this string is ignored.
7033 * 2. Declare a typedef named my_cxt_t that is a structure that contains
7034 * all the data that needs to be interpreter-local.
7035 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
7036 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
7037 * (typically put in the BOOT: section).
7038 * 5. Use the members of the my_cxt_t structure everywhere as
7040 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
7044 #if defined(PERL_IMPLICIT_CONTEXT)
7046 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
7047 * right after the definition (i.e. at file scope). The non-threads
7048 * case below uses it to declare the data as static. */
7049 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
7050 # define START_MY_CXT
7051 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
7052 # define MY_CXT_INIT_ARG MY_CXT_KEY
7054 # define START_MY_CXT static int my_cxt_index = -1;
7055 # define MY_CXT_INDEX my_cxt_index
7056 # define MY_CXT_INIT_ARG &my_cxt_index
7057 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
7059 /* Creates and zeroes the per-interpreter data.
7060 * (We allocate my_cxtp in a Perl SV so that it will be released when
7061 * the interpreter goes away.) */
7062 # define MY_CXT_INIT \
7063 my_cxt_t *my_cxtp = \
7064 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7065 PERL_UNUSED_VAR(my_cxtp)
7066 # define MY_CXT_INIT_INTERP(my_perl) \
7067 my_cxt_t *my_cxtp = \
7068 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7069 PERL_UNUSED_VAR(my_cxtp)
7071 /* This declaration should be used within all functions that use the
7072 * interpreter-local data. */
7074 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7075 # define dMY_CXT_INTERP(my_perl) \
7076 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7078 /* Clones the per-interpreter data. */
7079 # define MY_CXT_CLONE \
7080 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7081 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7082 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7083 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7087 /* This macro must be used to access members of the my_cxt_t structure.
7088 * e.g. MY_CXT.some_data */
7089 # define MY_CXT (*my_cxtp)
7091 /* Judicious use of these macros can reduce the number of times dMY_CXT
7092 * is used. Use is similar to pTHX, aTHX etc. */
7093 # define pMY_CXT my_cxt_t *my_cxtp
7094 # define pMY_CXT_ pMY_CXT,
7095 # define _pMY_CXT ,pMY_CXT
7096 # define aMY_CXT my_cxtp
7097 # define aMY_CXT_ aMY_CXT,
7098 # define _aMY_CXT ,aMY_CXT
7100 #else /* PERL_IMPLICIT_CONTEXT */
7102 # define START_MY_CXT static my_cxt_t my_cxt;
7103 # define dMY_CXT_SV dNOOP
7104 # define dMY_CXT dNOOP
7105 # define dMY_CXT_INTERP(my_perl) dNOOP
7106 # define MY_CXT_INIT NOOP
7107 # define MY_CXT_CLONE NOOP
7108 # define MY_CXT my_cxt
7110 # define pMY_CXT void
7117 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
7128 # undef FD_CLOEXEC /* a lie in AmigaOS */
7132 # include <sys/file.h>
7135 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7136 EXTERN_C int flock(int fd, int op);
7140 /* Assume UNIX defaults */
7141 # define O_RDONLY 0000
7142 # define O_WRONLY 0001
7143 # define O_RDWR 0002
7144 # define O_CREAT 0100
7155 #if O_TEXT != O_BINARY
7156 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7157 * that is, you are somehow DOSish. */
7158 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7159 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7160 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7161 /* VOS has O_TEXT != O_BINARY, and they have effect,
7162 * but VOS always uses LF, never CRLF. */
7163 /* If you have O_TEXT different from your O_BINARY but you still are
7164 * not a CRLF shop. */
7165 # undef PERLIO_USING_CRLF
7167 /* If you really are DOSish. */
7168 # define PERLIO_USING_CRLF 1
7173 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7176 #ifndef EXEC_ARGV_CAST
7177 #define EXEC_ARGV_CAST(x) (char **)x
7180 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7181 int). value returned in pointed-
7183 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7184 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7185 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7186 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7187 #define IS_NUMBER_NAN 0x20 /* this is not */
7188 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7191 =head1 Numeric functions
7193 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7195 A synonym for L</grok_numeric_radix>
7199 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7201 /* Number scan flags. All are used for input, the ones used for output are so
7203 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7204 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7206 /* grok_??? input: ignored; output: found overflow */
7207 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7209 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7210 * this isn't set on output if one is found. Instead, see
7211 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7212 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7214 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7215 and set IS_NUMBER_TRAILING */
7217 /* These are considered experimental, so not exposed publicly */
7218 #if defined(PERL_CORE) || defined(PERL_EXT)
7219 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7220 * output: found such a number */
7221 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7223 /* If this is set on input, and no illegal digit is found, it will be cleared
7224 * on output; otherwise unchanged */
7225 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7227 /* Don't warn on overflow; output flag still set */
7228 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7230 /* Forbid a leading underscore, which the other one doesn't */
7231 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7235 /* to let user control profiling */
7236 #ifdef PERL_GPROF_CONTROL
7237 extern void moncontrol(int);
7238 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7240 #define PERL_GPROF_MONCONTROL(x)
7243 /* ISO 6429 NEL - C1 control NExt Line */
7244 /* See https://www.unicode.org/unicode/reports/tr13/ */
7245 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7247 #ifndef PIPESOCK_MODE
7248 # define PIPESOCK_MODE
7251 #ifndef SOCKET_OPEN_MODE
7252 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7255 #ifndef PIPE_OPEN_MODE
7256 # define PIPE_OPEN_MODE PIPESOCK_MODE
7259 #define PERL_MAGIC_UTF8_CACHESIZE 2
7261 #define PERL_UNICODE_STDIN_FLAG 0x0001
7262 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7263 #define PERL_UNICODE_STDERR_FLAG 0x0004
7264 #define PERL_UNICODE_IN_FLAG 0x0008
7265 #define PERL_UNICODE_OUT_FLAG 0x0010
7266 #define PERL_UNICODE_ARGV_FLAG 0x0020
7267 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7268 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7269 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7271 #define PERL_UNICODE_STD_FLAG \
7272 (PERL_UNICODE_STDIN_FLAG | \
7273 PERL_UNICODE_STDOUT_FLAG | \
7274 PERL_UNICODE_STDERR_FLAG)
7276 #define PERL_UNICODE_INOUT_FLAG \
7277 (PERL_UNICODE_IN_FLAG | \
7278 PERL_UNICODE_OUT_FLAG)
7280 #define PERL_UNICODE_DEFAULT_FLAGS \
7281 (PERL_UNICODE_STD_FLAG | \
7282 PERL_UNICODE_INOUT_FLAG | \
7283 PERL_UNICODE_LOCALE_FLAG)
7285 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7287 #define PERL_UNICODE_STDIN 'I'
7288 #define PERL_UNICODE_STDOUT 'O'
7289 #define PERL_UNICODE_STDERR 'E'
7290 #define PERL_UNICODE_STD 'S'
7291 #define PERL_UNICODE_IN 'i'
7292 #define PERL_UNICODE_OUT 'o'
7293 #define PERL_UNICODE_INOUT 'D'
7294 #define PERL_UNICODE_ARGV 'A'
7295 #define PERL_UNICODE_LOCALE 'L'
7296 #define PERL_UNICODE_WIDESYSCALLS 'W'
7297 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7299 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7302 =head1 Numeric functions
7304 =for apidoc Am|int|PERL_ABS|int
7306 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7307 integers, but it works for any type.) Use instead of these, since the C
7308 library ones force their argument to be what it is expecting, potentially
7309 leading to disaster. But also beware that this evaluates its argument twice,
7315 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7317 #if defined(__DECC) && defined(__osf__)
7318 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7321 #define do_open(g, n, l, a, rm, rp, sf) \
7322 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7323 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7324 # define do_exec(cmd) do_exec3(cmd,0,0)
7327 # define do_aexec Perl_do_aexec
7329 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7334 =head1 Miscellaneous Functions
7336 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7338 Same as L</is_safe_syscall>.
7342 Allows one ending \0
7344 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7346 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7348 #if defined(OEMVS) || defined(__amigaos4__)
7349 #define NO_ENV_ARRAY_IN_MAIN
7352 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7353 * are here so that they are available throughout the core
7354 * NOTE that even though some are for _escape and some for _pretty
7355 * there must not be any clashes as the flags from _pretty are
7356 * passed straight through to _escape.
7359 #define PERL_PV_ESCAPE_QUOTE 0x000001
7360 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7362 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7363 #define PERL_PV_PRETTY_LTGT 0x000004
7364 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7366 #define PERL_PV_ESCAPE_UNI 0x000100
7367 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7368 #define PERL_PV_ESCAPE_NONASCII 0x000400
7369 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7371 #define PERL_PV_ESCAPE_ALL 0x001000
7372 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7373 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7374 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7375 #define PERL_PV_ESCAPE_RE 0x008000
7377 #define PERL_PV_ESCAPE_DWIM 0x010000
7380 /* used by pv_display in dump.c*/
7381 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7382 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7384 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7385 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7386 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7387 # define DOUBLE_IS_VAX_FLOAT
7389 # define DOUBLE_IS_IEEE_FORMAT
7392 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7393 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7394 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7395 # define DOUBLE_LITTLE_ENDIAN
7398 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7399 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7400 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7401 # define DOUBLE_BIG_ENDIAN
7404 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7405 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7406 # define DOUBLE_MIX_ENDIAN
7409 /* The VAX fp formats are neither consistently little-endian nor
7410 * big-endian, and neither are they really IEEE-mixed endian like
7411 * the mixed-endian ARM IEEE formats (with swapped bytes).
7412 * Ultimately, the VAX format came from the PDP-11.
7414 * The ordering of the parts in VAX floats is quite vexing.
7415 * In the below the fraction_n are the mantissa bits.
7417 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7418 * while the rightmost bit in each fraction is the least significant:
7419 * in other words, big-endian bit order within the fractions.
7421 * The fraction segments themselves would be big-endianly, except that
7422 * within 32 bit segments the less significant half comes first, the more
7423 * significant after, except that in the format H (used for long doubles)
7424 * the first fraction segment is alone, because the exponent is wider.
7425 * This means for example that both the most and the least significant
7426 * bits can be in the middle of the floats, not at either end.
7429 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7430 * http://www.quadibloc.com/comp/cp0201.htm
7431 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7432 * (somebody at HP should be fired for the URLs)
7434 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7435 * (exponent bias 128, hidden first one-bit)
7437 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7438 * fraction_4:16 fraction_3:16
7439 * (exponent bias 128, hidden first one-bit)
7441 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7442 * fraction_4:16 fraction_3:16
7443 * (exponent bias 1024, hidden first one-bit)
7445 * H fraction_1:16 sign:1 exp:15
7446 * fraction_3:16 fraction_2:16
7447 * fraction_5:16 fraction_4:16
7448 * fraction_7:16 fraction_6:16
7449 * (exponent bias 16384, hidden first one-bit)
7450 * (available only on VAX, and only on Fortran?)
7452 * The formats S, T and X are available on the Alpha (and Itanium,
7453 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7454 * binary32, binary64, and binary128 (commonly: float, double, long double).
7456 * S sign:1 exp:8 mantissa:23
7457 * (exponent bias 127, hidden first one-bit)
7459 * T sign:1 exp:11 mantissa:52
7460 * (exponent bias 1022, hidden first one-bit)
7462 * X sign:1 exp:15 mantissa:112
7463 * (exponent bias 16382, hidden first one-bit)
7467 #ifdef DOUBLE_IS_VAX_FLOAT
7468 # define DOUBLE_VAX_ENDIAN
7471 #ifdef DOUBLE_IS_IEEE_FORMAT
7472 /* All the basic IEEE formats have the implicit bit,
7473 * except for the x86 80-bit extended formats, which will undef this.
7474 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7475 * do not have the implicit bit of one. */
7476 # define NV_IMPLICIT_BIT
7479 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7481 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7482 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7483 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7484 # define LONGDOUBLE_LITTLE_ENDIAN
7487 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7488 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7489 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7490 # define LONGDOUBLE_BIG_ENDIAN
7493 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7494 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7495 # define LONGDOUBLE_MIX_ENDIAN
7498 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7499 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7500 # define LONGDOUBLE_X86_80_BIT
7501 # ifdef USE_LONG_DOUBLE
7502 # undef NV_IMPLICIT_BIT
7503 # define NV_X86_80_BIT
7507 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7508 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7509 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7510 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7511 # define LONGDOUBLE_DOUBLEDOUBLE
7514 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7515 # define LONGDOUBLE_VAX_ENDIAN
7518 #endif /* LONG_DOUBLEKIND */
7520 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7521 # if defined(DOUBLE_LITTLE_ENDIAN)
7522 # define NV_LITTLE_ENDIAN
7523 # elif defined(DOUBLE_BIG_ENDIAN)
7524 # define NV_BIG_ENDIAN
7525 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7526 # define NV_MIX_ENDIAN
7528 #elif NVSIZE == DOUBLESIZE
7529 # ifdef DOUBLE_LITTLE_ENDIAN
7530 # define NV_LITTLE_ENDIAN
7532 # ifdef DOUBLE_BIG_ENDIAN
7533 # define NV_BIG_ENDIAN
7535 # ifdef DOUBLE_MIX_ENDIAN
7536 # define NV_MIX_ENDIAN
7538 # ifdef DOUBLE_VAX_ENDIAN
7539 # define NV_VAX_ENDIAN
7541 #elif NVSIZE == LONG_DOUBLESIZE
7542 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7543 # define NV_LITTLE_ENDIAN
7545 # ifdef LONGDOUBLE_BIG_ENDIAN
7546 # define NV_BIG_ENDIAN
7548 # ifdef LONGDOUBLE_MIX_ENDIAN
7549 # define NV_MIX_ENDIAN
7551 # ifdef LONGDOUBLE_VAX_ENDIAN
7552 # define NV_VAX_ENDIAN
7556 /* We have somehow managed not to define the denormal/subnormal
7559 * This may happen if the compiler doesn't expose the C99 math like
7560 * the fpclassify() without some special switches. Perl tries to
7561 * stay C89, so for example -std=c99 is not an option.
7563 * The Perl_isinf() and Perl_isnan() should have been defined even if
7564 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7565 * from the C89 DBL_MIN or moral equivalent. */
7566 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7567 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7570 /* This is not a great fallback: subnormals tests will fail,
7571 * but at least Perl will link and 99.999% of tests will work. */
7572 #if !defined(Perl_fp_class_denorm)
7573 # define Perl_fp_class_denorm(x) FALSE
7576 #ifdef DOUBLE_IS_IEEE_FORMAT
7577 # define DOUBLE_HAS_INF
7578 # define DOUBLE_HAS_NAN
7581 #ifdef DOUBLE_HAS_NAN
7587 /* PL_inf and PL_nan initialization.
7589 * For inf and nan initialization the ultimate fallback is dividing
7590 * one or zero by zero: however, some compilers will warn or even fail
7591 * on divide-by-zero, but hopefully something earlier will work.
7593 * If you are thinking of using HUGE_VAL for infinity, or using
7594 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7595 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7596 * and the math functions might be just generating DBL_MAX, or even zero.
7598 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7599 * Though logically correct, some compilers (like Visual C 2003)
7600 * falsely misoptimize that to zero (x-x is always zero, right?)
7602 * Finally, note that not all floating point formats define Inf (or NaN).
7603 * For the infinity a large number may be used instead. Operations that
7604 * under the IEEE floating point would return Inf or NaN may return
7605 * either large numbers (positive or negative), or they may cause
7606 * a floating point exception or some other fault.
7609 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7610 # ifndef USE_CPLUSPLUS
7611 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7614 # ifdef USE_QUADMATH
7615 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7617 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7618 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7619 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7620 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7621 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7623 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7624 # if defined(LDBL_INFINITY)
7625 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7626 # elif defined(LDBL_INF)
7627 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7628 # elif defined(INFINITY)
7629 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7631 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7633 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7636 # if defined(DBL_INFINITY)
7637 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7638 # elif defined(DBL_INF)
7639 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7640 # elif defined(INFINITY) /* C99 */
7641 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7643 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7645 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7650 # ifdef USE_QUADMATH
7651 /* Cannot use nanq("0") for PL_nan because not a compile-time
7653 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7654 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7655 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7656 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7657 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7659 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7660 # if defined(LDBL_NAN)
7661 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7662 # elif defined(LDBL_QNAN)
7663 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7665 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7667 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7670 # if defined(DBL_NAN)
7671 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7672 # elif defined(DBL_QNAN)
7673 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7674 # elif defined(NAN) /* C99 */
7675 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7677 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7682 # ifndef USE_CPLUSPLUS
7683 GCC_DIAG_RESTORE_DECL;
7688 INFNAN_NV_U8_DECL PL_inf;
7689 INFNAN_NV_U8_DECL PL_nan;
7695 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7696 * we will define NV_INF/NV_NAN as the nv part of the global const
7697 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7698 * might not be a compile-time constant, in which case it cannot be
7699 * used to initialize PL_inf/PL_nan above. */
7701 # define NV_INF PL_inf.nv
7704 # define NV_NAN PL_nan.nv
7707 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7708 * "nan-ness". Part of the payload is the quiet/signaling bit.
7709 * To back up a bit (harhar):
7711 * For IEEE 754 64-bit formats [1]:
7713 * s 000 (mantissa all-zero) zero
7714 * s 000 (mantissa non-zero) subnormals (denormals)
7715 * s 001 ... 7fe normals
7718 * For IEEE 754 128-bit formats:
7720 * s 0000 (mantissa all-zero) zero
7721 * s 0000 (mantissa non-zero) subnormals (denormals)
7722 * s 0001 ... 7ffe normals
7725 * [1] this looks like big-endian, but applies equally to little-endian.
7727 * s = Sign bit. Yes, zeros and nans can have negative sign,
7728 * the interpretation is application-specific.
7730 * q = Quietness bit, the interpretation is platform-specific.
7731 * Most platforms have the most significant bit being one
7732 * meaning quiet, but some (older mips, hppa) have the msb
7733 * being one meaning signaling. Note that the above means
7734 * that on most platforms there cannot be signaling nan with
7735 * zero payload because that is identical with infinity;
7736 * while conversely on older mips/hppa there cannot be a quiet nan
7737 * because that is identical with infinity.
7739 * Moreover, whether there is any behavioral difference
7740 * between quiet and signaling NaNs, depends on the platform.
7742 * x86 80-bit extended precision is different, the mantissa bits:
7744 * 63 62 61 30387+ pre-387 visual c
7745 * -------- ---- -------- --------
7746 * 0 0 0 invalid infinity
7747 * 0 0 1 invalid snan
7748 * 0 1 0 invalid snan
7749 * 0 1 1 invalid snan
7750 * 1 0 0 infinity snan 1.#INF
7751 * 1 0 1 snan 1.#SNAN
7752 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7753 * 1 1 1 qnan 1.#QNAN
7755 * This means that in this format there are 61 bits available
7756 * for the nan payload.
7758 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7759 * simply cannot preserve the bit. You can either use the 80-bit
7760 * extended precision (long double, -Duselongdouble), or use x86-64.
7762 * In all platforms, the payload bytes (and bits, some of them are
7763 * often in a partial byte) themselves can be either all zero (x86),
7764 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7765 * or in a double-double, the first half of the payload can follow the
7766 * native double, while in the second half the payload can be all
7767 * zeros. (Therefore the mask for payload bits is not necessarily
7768 * identical to bit complement of the NaN.) Another way of putting
7769 * this: the payload for the default NaN might not be zero.
7771 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7772 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7775 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7776 * On normal floats, the sign bit being on means negative. But this may,
7777 * or may not, be reverted on NaNs: in other words, the default NaN might
7778 * have the sign bit on, and therefore look like negative if you look
7779 * at it at the bit level.
7781 * NaN payloads are not propagated even on copies, or in arithmetics.
7782 * They *might* be, according to some rules, on your particular
7783 * cpu/os/compiler/libraries, but no guarantees.
7785 * To summarize, on most platforms, and for 64-bit doubles
7786 * (using big-endian ordering here):
7788 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7789 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7790 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7791 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7793 * The C99 nan() is supposed to generate *quiet* NaNs.
7795 * Note the asymmetry:
7796 * The 7FF0000000000000 is positive infinity,
7797 * the FFF0000000000000 is negative infinity.
7800 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7801 * For the standard IEEE 754 fp this number is usually one less that
7802 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7803 * real. For the 80-bit extended precision formats (x86*), the number
7804 * of mantissa bits... depends. For normal floats, it's 64. But for
7805 * the inf/nan, it's different (zero for inf, 61 for nan).
7806 * NVMANTBITS works for normal floats. */
7808 /* We do not want to include the quiet/signaling bit. */
7809 #define NV_NAN_BITS (NVMANTBITS - 1)
7811 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7812 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7813 # define NV_NAN_QS_BYTE_OFFSET 13
7814 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7815 # define NV_NAN_QS_BYTE_OFFSET 2
7816 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7817 # define NV_NAN_QS_BYTE_OFFSET 7
7818 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7819 # define NV_NAN_QS_BYTE_OFFSET 2
7820 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7821 # define NV_NAN_QS_BYTE_OFFSET 13
7822 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7823 # define NV_NAN_QS_BYTE_OFFSET 1
7824 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7825 # define NV_NAN_QS_BYTE_OFFSET 9
7826 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7827 # define NV_NAN_QS_BYTE_OFFSET 6
7829 # error "Unexpected long double format"
7832 # ifdef USE_QUADMATH
7833 # ifdef NV_LITTLE_ENDIAN
7834 # define NV_NAN_QS_BYTE_OFFSET 13
7835 # elif defined(NV_BIG_ENDIAN)
7836 # define NV_NAN_QS_BYTE_OFFSET 2
7838 # error "Unexpected quadmath format"
7840 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7841 # define NV_NAN_QS_BYTE_OFFSET 2
7842 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7843 # define NV_NAN_QS_BYTE_OFFSET 1
7844 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7845 # define NV_NAN_QS_BYTE_OFFSET 6
7846 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7847 # define NV_NAN_QS_BYTE_OFFSET 1
7848 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7849 # define NV_NAN_QS_BYTE_OFFSET 13
7850 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7851 # define NV_NAN_QS_BYTE_OFFSET 2
7852 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7853 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7854 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7855 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7857 /* For example the VAX formats should never
7858 * get here because they do not have NaN. */
7859 # error "Unexpected double format"
7862 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7863 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7864 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7865 * for the quiet/signaling */
7866 #if defined(USE_LONG_DOUBLE) && \
7867 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7868 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7869 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7870 #elif defined(USE_LONG_DOUBLE) && \
7871 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7872 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7873 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7874 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7875 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7877 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7879 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7880 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7881 * (bytes ordered big-endianly) for the quiet/signaling bit
7882 * for the quiet/signaling */
7883 #define NV_NAN_QS_BIT_OFFSET \
7884 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7885 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7886 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7887 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7888 #define NV_NAN_QS_QUIET \
7889 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7890 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7891 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7892 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7893 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7894 * Note however that these do not check whether the nvp is a NaN. */
7895 #define NV_NAN_IS_QUIET(nvp) \
7896 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7897 #define NV_NAN_IS_SIGNALING(nvp) \
7898 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7899 #define NV_NAN_SET_QUIET(nvp) \
7900 (NV_NAN_QS_QUIET ? \
7901 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7902 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7903 #define NV_NAN_SET_SIGNALING(nvp) \
7904 (NV_NAN_QS_QUIET ? \
7905 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7906 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7907 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7909 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7911 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7912 * 0xFF means "don't go here".*/
7914 /* Shorthands to avoid typoses. */
7915 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7916 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7917 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7918 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7919 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7920 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7921 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7922 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7923 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7924 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7925 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7926 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7927 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7928 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7929 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7930 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7931 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7932 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7933 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7934 NV_NAN_PAYLOAD_PERM_7_TO_0
7935 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7936 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7937 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7938 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7939 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7940 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7941 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7942 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7944 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7945 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7946 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7947 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7948 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7949 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7950 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7951 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7952 # if LONG_DOUBLESIZE == 10
7953 # define NV_NAN_PAYLOAD_MASK \
7954 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7956 # define NV_NAN_PAYLOAD_PERM \
7957 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7958 # elif LONG_DOUBLESIZE == 12
7959 # define NV_NAN_PAYLOAD_MASK \
7960 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7961 0x00, 0x00, 0x00, 0x00
7962 # define NV_NAN_PAYLOAD_PERM \
7963 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7964 # elif LONG_DOUBLESIZE == 16
7965 # define NV_NAN_PAYLOAD_MASK \
7966 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7968 # define NV_NAN_PAYLOAD_PERM \
7969 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7970 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7972 # error "Unexpected x86 80-bit little-endian long double format"
7974 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7975 # if LONG_DOUBLESIZE == 10
7976 # define NV_NAN_PAYLOAD_MASK \
7977 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7979 # define NV_NAN_PAYLOAD_PERM \
7980 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7981 # elif LONG_DOUBLESIZE == 12
7982 # define NV_NAN_PAYLOAD_MASK \
7983 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7984 0xff, 0xff, 0x00, 0x00
7985 # define NV_NAN_PAYLOAD_PERM \
7986 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7987 # elif LONG_DOUBLESIZE == 16
7988 # define NV_NAN_PAYLOAD_MASK \
7989 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7990 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7991 # define NV_NAN_PAYLOAD_PERM \
7992 NV_NAN_PAYLOAD_PERM_7_TO_0, \
7993 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7995 # error "Unexpected x86 80-bit big-endian long double format"
7997 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7998 /* For double-double we assume only the first double (in LE or BE terms)
7999 * is used for NaN. */
8000 # define NV_NAN_PAYLOAD_MASK \
8001 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8002 # define NV_NAN_PAYLOAD_PERM \
8003 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8004 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8005 # define NV_NAN_PAYLOAD_MASK \
8006 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8007 # define NV_NAN_PAYLOAD_PERM \
8008 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8009 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8010 # define NV_NAN_PAYLOAD_MASK \
8011 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8012 # define NV_NAN_PAYLOAD_PERM \
8013 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8014 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8015 # define NV_NAN_PAYLOAD_MASK \
8016 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8017 # define NV_NAN_PAYLOAD_PERM \
8018 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8020 # error "Unexpected long double format"
8023 # ifdef USE_QUADMATH /* quadmath is not long double */
8024 # ifdef NV_LITTLE_ENDIAN
8025 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8026 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8027 # elif defined(NV_BIG_ENDIAN)
8028 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8029 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8031 # error "Unexpected quadmath format"
8033 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8034 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
8035 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
8036 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8037 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
8038 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
8039 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8040 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8041 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8042 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8043 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8044 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8045 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8046 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8047 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8048 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8049 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8050 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8051 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8052 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
8053 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
8054 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8055 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8056 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8058 # error "Unexpected double format"
8062 #endif /* DOUBLE_HAS_NAN */
8067 (KEEP THIS LAST IN perl.h!)
8109 so that Configure picks them up.
8111 (KEEP THIS LAST IN perl.h!)
8115 #endif /* Include guard */
8118 * ex: set ts=8 sts=4 sw=4 et: