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 /* In case Configure was not used (we are using a "canned config"
298 * such as Win32, or a cross-compilation setup, for example) try going
299 * by the gcc major and minor versions. One useful URL is
300 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
301 * but contrary to this information warn_unused_result seems
302 * not to be in gcc 3.3.5, at least. --jhi
303 * Also, when building extensions with an installed perl, this allows
304 * the user to upgrade gcc and get the right attributes, rather than
305 * relying on the list generated at Configure time. --AD
306 * Set these up now otherwise we get confused when some of the <*thread.h>
307 * includes below indirectly pull in <perlio.h> (which needs to know if we
308 * have HASATTRIBUTE_FORMAT).
312 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
313 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
314 # define HASATTRIBUTE_DEPRECATED
316 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
317 # define HASATTRIBUTE_FORMAT
318 # if defined __MINGW32__
319 # define PRINTF_FORMAT_NULL_OK
322 # if __GNUC__ >= 3 /* 3.0 -> */
323 # define HASATTRIBUTE_MALLOC
325 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
326 # define HASATTRIBUTE_NONNULL
328 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
329 # define HASATTRIBUTE_NORETURN
331 # if __GNUC__ >= 3 /* gcc 3.0 -> */
332 # define HASATTRIBUTE_PURE
334 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
335 # define HASATTRIBUTE_UNUSED
337 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
338 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
340 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
341 # define HASATTRIBUTE_WARN_UNUSED_RESULT
344 #endif /* #ifndef PERL_MICRO */
346 #ifdef HASATTRIBUTE_DEPRECATED
347 # define __attribute__deprecated__ __attribute__((deprecated))
349 #ifdef HASATTRIBUTE_FORMAT
350 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
352 #ifdef HASATTRIBUTE_MALLOC
353 # define __attribute__malloc__ __attribute__((__malloc__))
355 #ifdef HASATTRIBUTE_NONNULL
356 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
358 #ifdef HASATTRIBUTE_NORETURN
359 # define __attribute__noreturn__ __attribute__((noreturn))
361 #ifdef HASATTRIBUTE_PURE
362 # define __attribute__pure__ __attribute__((pure))
364 #ifdef HASATTRIBUTE_UNUSED
365 # define __attribute__unused__ __attribute__((unused))
367 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
368 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
371 /* If we haven't defined the attributes yet, define them to blank. */
372 #ifndef __attribute__deprecated__
373 # define __attribute__deprecated__
375 #ifndef __attribute__format__
376 # define __attribute__format__(x,y,z)
378 #ifndef __attribute__malloc__
379 # define __attribute__malloc__
381 #ifndef __attribute__nonnull__
382 # define __attribute__nonnull__(a)
384 #ifndef __attribute__noreturn__
385 # define __attribute__noreturn__
387 #ifndef __attribute__pure__
388 # define __attribute__pure__
390 #ifndef __attribute__unused__
391 # define __attribute__unused__
393 #ifndef __attribute__warn_unused_result__
394 # define __attribute__warn_unused_result__
397 /* Some OS warn on NULL format to printf */
398 #ifdef PRINTF_FORMAT_NULL_OK
399 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
401 # define __attribute__format__null_ok__(x,y,z)
405 * Because of backward compatibility reasons the PERL_UNUSED_DECL
406 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
408 * Note that there are C compilers such as MetroWerks CodeWarrior
409 * which do not have an "inlined" way (like the gcc __attribute__) of
410 * marking unused variables (they need e.g. a #pragma) and therefore
411 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
412 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
416 #ifndef PERL_UNUSED_DECL
417 # define PERL_UNUSED_DECL __attribute__unused__
421 * for silencing unused variables that are actually used most of the time,
422 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
423 * or variables/arguments that are used only in certain configurations.
425 #ifndef PERL_UNUSED_ARG
426 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
428 #ifndef PERL_UNUSED_VAR
429 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
432 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
433 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
435 # define PERL_UNUSED_CONTEXT
438 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
439 * g++ allows them but seems to have problems with them
440 * (insane errors ensue).
441 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
443 #if defined(PERL_GCC_PEDANTIC) || \
444 (defined(__GNUC__) && defined(__cplusplus) && \
445 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
446 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
447 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
451 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
452 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
454 * The main reason for this is that the combination of gcc -Wunused-result
455 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
456 * be silenced with casting to void. This causes trouble when the system
457 * header files use the attribute.
459 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
460 * is there for a good reason: you might lose success/failure information,
461 * or leak resources, or changes in resources.
463 * But sometimes you just want to ignore the return value, e.g. on
464 * codepaths soon ending up in abort, or in "best effort" attempts,
465 * or in situations where there is no good way to handle failures.
467 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
468 * another possibility is that you can capture the return value
469 * and use PERL_UNUSED_VAR on that.
471 * The __typeof__() is used instead of typeof() since typeof() is not
472 * available under strict C89, and because of compilers masquerading
473 * as gcc (clang and icc), we want exactly the gcc extension
474 * __typeof__ and nothing else.
476 #ifndef PERL_UNUSED_RESULT
477 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
478 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
480 # define PERL_UNUSED_RESULT(v) ((void)(v))
484 #if defined(_MSC_VER)
485 /* XXX older MSVC versions have a smallish macro buffer */
486 #define PERL_SMALL_MACRO_BUFFER
489 /* on gcc (and clang), specify that a warning should be temporarily
492 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
494 * GCC_DIAG_RESTORE_DECL;
496 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
498 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
499 * clang only pretends to be GCC 4.2, but still supports push/pop.
501 * Note on usage: all macros must be used at a place where a declaration
502 * or statement can occur, i.e., not in the middle of an expression.
503 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
504 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
505 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
506 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
507 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
508 * and behave syntactically as statements (like NOOP).
512 #if defined(__clang__) || defined(__clang) || \
513 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
514 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
515 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
516 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
517 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
518 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
520 # define GCC_DIAG_IGNORE(w)
521 # define GCC_DIAG_RESTORE
523 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
524 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
525 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
526 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
527 /* for clang specific pragmas */
528 #if defined(__clang__) || defined(__clang)
529 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
530 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
531 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
532 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
534 # define CLANG_DIAG_IGNORE(w)
535 # define CLANG_DIAG_RESTORE
537 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
538 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
539 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
540 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
542 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
543 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
544 __pragma(warning(disable : x))
545 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
547 # define MSVC_DIAG_IGNORE(x)
548 # define MSVC_DIAG_RESTORE
550 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
551 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
552 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
553 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
555 #define NOOP /*EMPTY*/(void)0
556 #define dNOOP struct Perl___notused_struct
559 /* Don't bother defining tTHX ; using it outside
560 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
566 # define aTHXa(a) NOOP
567 # define dTHXa(a) dNOOP
585 /* these are only defined for compatibility; should not be used internally */
586 #if !defined(pTHXo) && !defined(PERL_CORE)
588 # define pTHXo_ pTHX_
590 # define aTHXo_ aTHX_
592 # define dTHXoa(x) dTHXa(x)
596 # define pTHXx PerlInterpreter *my_perl
597 # define pTHXx_ pTHXx,
598 # define aTHXx my_perl
599 # define aTHXx_ aTHXx,
603 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
604 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
605 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
606 #ifdef PERL_IMPLICIT_SYS
607 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
608 # define dTHXs dVAR; dTHX
613 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
620 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
621 # ifndef PERL_USE_GCC_BRACE_GROUPS
622 # define PERL_USE_GCC_BRACE_GROUPS
627 =head1 Miscellaneous Functions
629 =for apidoc AmnUu|void|STMT_START
631 STMT_START { statements; } STMT_END;
633 can be used as a single statement, as in
635 if (x) STMT_START { ... } STMT_END; else ...
637 These are often used in macro definitions. Note that you can't return a value
640 =for apidoc AmnUhu|void|STMT_END
644 Trying to select a version that gives no warnings...
646 #if !(defined(STMT_START) && defined(STMT_END))
647 # ifdef PERL_USE_GCC_BRACE_GROUPS
648 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
651 # define STMT_START do
652 # define STMT_END while (0)
656 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
657 # define BYTEORDER 0x1234
660 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
667 * The following contortions are brought to you on behalf of all the
668 * standards, semi-standards, de facto standards, not-so-de-facto standards
669 * of the world, as well as all the other botches anyone ever thought of.
670 * The basic theory is that if we work hard enough here, the rest of the
671 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
674 /* define this once if either system, instead of cluttering up the src */
675 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
679 /* These exist only for back-compat with XS modules. */
682 #define CAN_PROTOTYPE
689 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
690 * you get a perl without taint support, but doubtlessly with a lesser
691 * degree of support. Do not do so unless you know exactly what it means
692 * technically, have a good reason to do so, and know exactly how the
693 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
694 * a potential security risk due to flat out ignoring the security-relevant
695 * taint flags. This being said, a perl without taint support compiled in
696 * has marginal run-time performance benefits.
697 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
698 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
699 * silently ignores -t/-T instead of throwing an exception.
701 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
702 * voids your nonexistent warranty!
704 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
705 # define NO_TAINT_SUPPORT 1
708 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
709 * operations into no-ops for a very modest speed-up. Enable only if you
710 * know what you're doing: tests and CPAN modules' tests are bound to fail.
712 #ifdef NO_TAINT_SUPPORT
714 # define TAINT_NOT NOOP
715 # define TAINT_IF(c) NOOP
716 # define TAINT_ENV() NOOP
717 # define TAINT_PROPER(s) NOOP
718 # define TAINT_set(s) NOOP
720 # define TAINTING_get 0
721 # define TAINTING_set(s) NOOP
722 # define TAINT_WARN_get 0
723 # define TAINT_WARN_set(s) NOOP
725 /* Set to tainted if we are running under tainting mode */
726 # define TAINT (PL_tainted = PL_tainting)
728 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
729 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
730 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
731 /* croak or warn if tainting */
732 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
733 taint_proper(NULL, s); \
735 # define TAINT_set(s) (PL_tainted = (s))
736 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
737 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
738 # define TAINTING_set(s) (PL_tainting = (s))
739 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
743 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
746 /* flags used internally only within pp_subst and pp_substcont */
748 # define SUBST_TAINT_STR 1 /* string tainted */
749 # define SUBST_TAINT_PAT 2 /* pattern tainted */
750 # define SUBST_TAINT_REPL 4 /* replacement tainted */
751 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
752 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
755 /* XXX All process group stuff is handled in pp_sys.c. Should these
756 defines move there? If so, I could simplify this a lot. --AD 9/96.
758 /* Process group stuff changed from traditional BSD to POSIX.
759 perlfunc.pod documents the traditional BSD-style syntax, so we'll
760 try to preserve that, if possible.
763 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
764 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
765 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
766 #elif defined(HAS_SETPGRP2)
767 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
769 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
770 # define HAS_SETPGRP /* Well, effectively it does . . . */
773 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
774 our life easier :-) so we'll try it.
777 # define BSD_GETPGRP(pid) getpgid((pid))
778 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
779 # define BSD_GETPGRP(pid) getpgrp((pid))
780 #elif defined(HAS_GETPGRP2)
781 # define BSD_GETPGRP(pid) getpgrp2((pid))
783 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
784 # define HAS_GETPGRP /* Well, effectively it does . . . */
787 /* These are not exact synonyms, since setpgrp() and getpgrp() may
788 have different behaviors, but perl.h used to define USE_BSDPGRP
789 (prior to 5.003_05) so some extension might depend on it.
791 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
797 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
798 pthread.h must be included before all other header files.
800 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
801 # include <pthread.h>
804 #include <sys/types.h>
806 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
807 which is included from stdarg.h. Bad definition not present in SD 2008
808 SDK headers. wince.h is not yet included, so we cant fix this from there
809 since by then MB_CUR_MAX will be defined from stdlib.h.
810 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
811 since cewchar.h can't be included this early */
812 #if defined(UNDER_CE) && (_MSC_VER < 1300)
813 # define MB_CUR_MAX 1uL
830 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
843 # include <xlocale.h>
846 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
847 * functions are available, or 2) just the setlocale() function. This logic is
848 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
850 #if ! defined(NO_LOCALE)
852 # if ! defined(NO_POSIX_2008_LOCALE) \
853 && defined(HAS_NEWLOCALE) \
854 && defined(HAS_USELOCALE) \
855 && defined(HAS_DUPLOCALE) \
856 && defined(HAS_FREELOCALE) \
857 && defined(LC_ALL_MASK)
859 /* For simplicity, the code is written to assume that any platform advanced
860 * enough to have the Posix 2008 locale functions has LC_ALL. The final
861 * test above makes sure that assumption is valid */
863 # define HAS_POSIX_2008_LOCALE
865 # elif defined(HAS_SETLOCALE)
871 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
873 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
874 && defined(HAS_STRXFRM)
875 # define USE_LOCALE_COLLATE
877 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
878 # define USE_LOCALE_CTYPE
880 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
881 # define USE_LOCALE_NUMERIC
883 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
884 # define USE_LOCALE_MESSAGES
886 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
887 # define USE_LOCALE_MONETARY
889 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
890 # define USE_LOCALE_TIME
892 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
893 # define USE_LOCALE_ADDRESS
895 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
896 # define USE_LOCALE_IDENTIFICATION
898 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
899 # define USE_LOCALE_MEASUREMENT
901 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
902 # define USE_LOCALE_PAPER
904 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
905 # define USE_LOCALE_TELEPHONE
908 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
909 * changes here MUST also be made there */
911 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
912 # define USE_POSIX_2008_LOCALE
913 # ifndef USE_THREAD_SAFE_LOCALE
914 # define USE_THREAD_SAFE_LOCALE
917 * -DUSE_THREAD_SAFE_LOCALE, will do so even
918 * on unthreaded builds */
919 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
920 && ( defined(HAS_POSIX_2008_LOCALE) \
921 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
922 && ! defined(NO_THREAD_SAFE_LOCALE)
923 # ifndef USE_THREAD_SAFE_LOCALE
924 # define USE_THREAD_SAFE_LOCALE
926 # ifdef HAS_POSIX_2008_LOCALE
927 # define USE_POSIX_2008_LOCALE
932 /* Microsoft documentation reads in the change log for VS 2015:
933 * "The localeconv function declared in locale.h now works correctly when
934 * per-thread locale is enabled. In previous versions of the library, this
935 * function would return the lconv data for the global locale, not the
938 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
939 # define TS_W32_BROKEN_LOCALECONV
945 # ifdef PARAM_NEEDS_TYPES
946 # include <sys/types.h>
948 # include <sys/param.h>
951 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
952 value something like 199306. This may be useful if no more-specific
953 feature test is available.
961 /* Use all the "standard" definitions */
964 /* If this causes problems, set i_unistd=undef in the hint file. */
966 # if defined(__amigaos4__)
968 # include <netinet/in.h>
972 # if defined(__amigaos4__)
973 /* Under AmigaOS 4 newlib.library provides an environ. However using
974 * it doesn't give us enough control over inheritance of variables by
975 * subshells etc. so replace with custom version based on abc-shell
977 extern char **myenviron;
979 # define environ myenviron
985 # include <sys/wait.h>
989 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
992 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
993 EXTERN_C int syscall(int, ...);
996 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
997 EXTERN_C int usleep(unsigned int);
1000 /* macros for correct constant construction. These are in C99 <stdint.h>
1001 * (so they will not be available in strict C89 mode), but they are nice, so
1002 * let's define them if necessary. */
1005 # define UINT16_C(x) ((U16_TYPE)x##U)
1007 # define UINT16_C(x) ((U16_TYPE)x##UL)
1013 # define UINT32_C(x) ((U32_TYPE)x##U)
1015 # define UINT32_C(x) ((U32_TYPE)x##UL)
1020 typedef intmax_t PERL_INTMAX_T;
1021 typedef uintmax_t PERL_UINTMAX_T;
1024 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1025 * actually mean what it has always been documented to mean (see RT #119753)
1026 * and is explicitly turned off outside of core with dire warnings about
1027 * removing the undef. */
1029 #if defined(QUADKIND)
1030 # undef PeRl_INT64_C
1031 # undef PeRl_UINT64_C
1032 /* Prefer the native integer types (int and long) over long long
1033 * (which is not C89) and Win32-specific __int64. */
1034 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1035 # define PeRl_INT64_C(c) (c)
1036 # define PeRl_UINT64_C(c) CAT2(c,U)
1038 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1039 # define PeRl_INT64_C(c) CAT2(c,L)
1040 # define PeRl_UINT64_C(c) CAT2(c,UL)
1042 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1043 # define PeRl_INT64_C(c) CAT2(c,LL)
1044 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1046 # if QUADKIND == QUAD_IS___INT64
1047 # define PeRl_INT64_C(c) CAT2(c,I64)
1048 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1050 # ifndef PeRl_INT64_C
1051 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1052 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1054 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1055 * not fly with C89-pedantic gcc, so let's undefine them first so that
1056 * we can redefine them with our native integer preferring versions. */
1057 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1062 # define INT64_C(c) PeRl_INT64_C(c)
1065 # define UINT64_C(c) PeRl_UINT64_C(c)
1069 typedef I64TYPE PERL_INTMAX_T;
1070 typedef U64TYPE PERL_UINTMAX_T;
1073 # define INTMAX_C(c) INT64_C(c)
1076 # define UINTMAX_C(c) UINT64_C(c)
1079 #else /* below QUADKIND is undefined */
1081 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1083 typedef I32TYPE PERL_INTMAX_T;
1084 typedef U32TYPE PERL_UINTMAX_T;
1087 # define INTMAX_C(c) INT32_C(c)
1090 # define UINTMAX_C(c) UINT32_C(c)
1093 #endif /* no QUADKIND */
1097 /* byte-swapping functions for big-/little-endian conversion */
1098 # define _swab_16_(x) ((U16)( \
1099 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1100 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1102 # define _swab_32_(x) ((U32)( \
1103 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1104 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1105 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1106 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1109 # define _swab_64_(x) ((U64)( \
1110 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1111 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1112 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1113 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1114 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1115 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1116 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1117 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1120 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1121 at least on FreeBSD. YMMV, so experiment. */
1122 #ifndef PERL_ARENA_SIZE
1123 #define PERL_ARENA_SIZE 4080
1126 /* Maximum level of recursion */
1127 #ifndef PERL_SUB_DEPTH_WARN
1128 #define PERL_SUB_DEPTH_WARN 100
1131 #endif /* PERL_CORE */
1133 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1134 * It determines the size of local arrays in S_maybe_multiconcat() and
1137 #define PERL_MULTICONCAT_MAXARG 64
1139 /* The indexes of fields of a multiconcat aux struct.
1140 * The fixed fields are followed by nargs+1 const segment lengths,
1141 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1144 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1145 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1146 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1147 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1148 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1149 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1150 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1151 multiconcat header */
1153 /* We no longer default to creating a new SV for GvSV.
1154 Do this before embed. */
1155 #ifndef PERL_CREATE_GVSV
1156 # ifndef PERL_DONT_CREATE_GVSV
1157 # define PERL_DONT_CREATE_GVSV
1161 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1162 #define PERL_USES_PL_PIDSTATUS
1165 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
1166 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1169 #define MEM_SIZE Size_t
1171 /* Round all values passed to malloc up, by default to a multiple of
1174 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1175 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1178 /* sv_grow() will expand strings by at least a certain percentage of
1179 the previously *used* length to avoid excessive calls to realloc().
1180 The default is 25% of the current length.
1182 #ifndef PERL_STRLEN_EXPAND_SHIFT
1183 # define PERL_STRLEN_EXPAND_SHIFT 2
1186 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1187 * onwards) when building Socket.xs, but we can just use a different definition
1188 * for STRUCT_OFFSET instead. */
1189 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1190 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1192 # include <stddef.h>
1193 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1196 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1197 * in C89, but apparently there are platforms where it doesn't exist. See
1198 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1200 #ifdef PERL_GCC_PEDANTIC
1201 # undef HAS_PTRDIFF_T
1204 #ifdef HAS_PTRDIFF_T
1205 # define Ptrdiff_t ptrdiff_t
1207 # define Ptrdiff_t SSize_t
1210 #ifndef __SYMBIAN32__
1211 # include <string.h>
1214 /* This comes after <stdlib.h> so we don't try to change the standard
1215 * library prototypes; we'll use our own in proto.h instead. */
1218 # ifdef PERL_POLLUTE_MALLOC
1219 # ifndef PERL_EXTMALLOC_DEF
1220 # define Perl_malloc malloc
1221 # define Perl_calloc calloc
1222 # define Perl_realloc realloc
1223 # define Perl_mfree free
1226 # define EMBEDMYMALLOC /* for compatibility */
1229 # define safemalloc Perl_malloc
1230 # define safecalloc Perl_calloc
1231 # define saferealloc Perl_realloc
1232 # define safefree Perl_mfree
1233 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1234 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1237 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1238 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1239 # define panic_write2(s) write(2, s, strlen(s))
1240 # define CHECK_MALLOC_TAINT(newval) \
1241 CHECK_MALLOC_TOO_LATE_FOR_( \
1243 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1245 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1246 if (doing_taint(argc,argv,env)) { \
1247 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1249 #else /* MYMALLOC */
1250 # define safemalloc safesysmalloc
1251 # define safecalloc safesyscalloc
1252 # define saferealloc safesysrealloc
1253 # define safefree safesysfree
1254 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1255 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1256 # define MALLOC_CHECK_TAINT(argc,argv,env)
1257 #endif /* MYMALLOC */
1259 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1260 #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)
1261 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1262 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1263 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1266 # define memzero(d,l) memset(d,0,l)
1270 # include <netinet/in.h>
1274 # include <arpa/inet.h>
1278 # include <sys/stat.h>
1281 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1282 This definition should ideally go into win32/win32.h, but S_IFIFO is
1283 used later here in perl.h before win32/win32.h is being included. */
1284 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1285 # define S_IFIFO _S_IFIFO
1288 /* The stat macros for Unisoft System V/88 (and derivatives
1289 like UTekV) are broken, sometimes giving false positives. Undefine
1290 them here and let the code below set them to proper values.
1292 The ghs macro stands for GreenHills Software C-1.8.5 which
1293 is the C compiler for sysV88 and the various derivatives.
1294 This header file bug is corrected in gcc-2.5.8 and later versions.
1295 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1297 #if defined(m88k) && defined(ghs)
1309 # ifdef I_SYS_TIME_KERNEL
1312 # include <sys/time.h>
1313 # ifdef I_SYS_TIME_KERNEL
1318 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1319 # include <sys/times.h>
1324 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1325 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1328 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1329 # include <sys/socket.h>
1330 # if defined(USE_SOCKS) && defined(I_SOCKS)
1331 # if !defined(INCLUDE_PROTOTYPES)
1332 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1333 # define PERL_SOCKS_NEED_PROTOTYPES
1336 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1337 # undef INCLUDE_PROTOTYPES
1338 # undef PERL_SOCKS_NEED_PROTOTYPES
1349 # include <net/errno.h>
1354 /* sockatmark() is so new (2001) that many places might have it hidden
1355 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1356 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1357 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1358 # if defined(__THROW) && defined(__GLIBC__)
1359 int sockatmark(int) __THROW;
1361 int sockatmark(int);
1365 #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. */
1366 EXTERN_C int fchdir(int);
1367 EXTERN_C int flock(int, int);
1368 EXTERN_C int fseeko(FILE *, off_t, int);
1369 EXTERN_C off_t ftello(FILE *);
1372 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1373 EXTERN_C char *crypt(const char *, const char *);
1376 #if defined(__cplusplus) && defined(__CYGWIN__)
1377 EXTERN_C char *crypt(const char *, const char *);
1383 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1385 Set C<errno>, and on VMS set C<vaxc$errno>.
1387 =for apidoc mn|void|dSAVEDERRNO
1389 Declare variables needed to save C<errno> and any operating system
1390 specific error number.
1392 =for apidoc mn|void|dSAVE_ERRNO
1394 Declare variables needed to save C<errno> and any operating system
1395 specific error number, and save them for optional later restoration
1396 by C<RESTORE_ERRNO>.
1398 =for apidoc mn|void|SAVE_ERRNO
1400 Save C<errno> and any operating system specific error number for
1401 optional later restoration by C<RESTORE_ERRNO>. Requires
1402 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1404 =for apidoc mn|void|RESTORE_ERRNO
1406 Restore C<errno> and any operating system specific error number that
1407 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1413 # undef SETERRNO /* SOCKS might have defined this */
1417 # define SETERRNO(errcode,vmserrcode) \
1419 set_errno(errcode); \
1420 set_vaxc_errno(vmserrcode); \
1422 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1423 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1424 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1425 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1427 # define LIB_INVARG LIB$_INVARG
1428 # define RMS_DIR RMS$_DIR
1429 # define RMS_FAC RMS$_FAC
1430 # define RMS_FEX RMS$_FEX
1431 # define RMS_FNF RMS$_FNF
1432 # define RMS_IFI RMS$_IFI
1433 # define RMS_ISI RMS$_ISI
1434 # define RMS_PRV RMS$_PRV
1435 # define SS_ACCVIO SS$_ACCVIO
1436 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1437 # define SS_IVCHAN SS$_IVCHAN
1438 # define SS_NORMAL SS$_NORMAL
1439 # define SS_NOPRIV SS$_NOPRIV
1440 # define SS_BUFFEROVF SS$_BUFFEROVF
1442 # define LIB_INVARG 0
1450 # define SS_ACCVIO 0
1451 # define SS_DEVOFFLINE 0
1452 # define SS_IVCHAN 0
1453 # define SS_NORMAL 0
1454 # define SS_NOPRIV 0
1455 # define SS_BUFFEROVF 0
1459 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1460 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1461 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1462 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1466 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1467 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1468 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1469 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1473 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1477 # define dSAVEDERRNO int saved_errno
1478 # define dSAVE_ERRNO int saved_errno = errno
1479 # define SAVE_ERRNO (saved_errno = errno)
1480 # define RESTORE_ERRNO (errno = saved_errno)
1484 =head1 Warning and Dieing
1486 =for apidoc Amn|SV *|ERRSV
1488 Returns the SV for C<$@>, creating it if needed.
1490 =for apidoc Am|void|CLEAR_ERRSV
1492 Clear the contents of C<$@>, setting it to the empty string.
1494 This replaces any read-only SV with a fresh SV and removes any magic.
1496 =for apidoc Am|void|SANE_ERRSV
1498 Clean up ERRSV so we can safely set it.
1500 This replaces any read-only SV with a fresh writable copy and removes
1506 #define ERRSV GvSVn(PL_errgv)
1508 /* contains inlined gv_add_by_type */
1509 #define CLEAR_ERRSV() STMT_START { \
1510 SV ** const svp = &GvSV(PL_errgv); \
1512 *svp = newSVpvs(""); \
1513 } else if (SvREADONLY(*svp)) { \
1514 SvREFCNT_dec_NN(*svp); \
1515 *svp = newSVpvs(""); \
1517 SV *const errsv = *svp; \
1519 SvPOK_only(errsv); \
1520 if (SvMAGICAL(errsv)) { \
1526 /* contains inlined gv_add_by_type */
1527 #define SANE_ERRSV() STMT_START { \
1528 SV ** const svp = &GvSV(PL_errgv); \
1530 *svp = newSVpvs(""); \
1531 } else if (SvREADONLY(*svp)) { \
1532 SV *dupsv = newSVsv(*svp); \
1533 SvREFCNT_dec_NN(*svp); \
1536 SV *const errsv = *svp; \
1537 if (SvMAGICAL(errsv)) { \
1545 # define DEFSV (0 + GvSVn(PL_defgv))
1546 # define DEFSV_set(sv) \
1547 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1548 # define SAVE_DEFSV \
1550 save_gp(PL_defgv, 0), \
1551 GvINTRO_off(PL_defgv), \
1552 SAVEGENERICSV(GvSV(PL_defgv)), \
1553 GvSV(PL_defgv) = NULL \
1556 # define DEFSV GvSVn(PL_defgv)
1557 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1558 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1562 extern int errno; /* ANSI allows errno to be an lvalue expr.
1563 * For example in multithreaded environments
1564 * something like this might happen:
1565 * extern int *_errno(void);
1566 * #define errno (*_errno()) */
1569 #define UNKNOWN_ERRNO_MSG "(unknown)"
1572 #define Strerror(e) strerror((e), vaxc$errno)
1574 #define Strerror(e) strerror(e)
1579 # include <sys/ioctl.h>
1583 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1584 # ifdef HAS_SOCKETPAIR
1585 # undef HAS_SOCKETPAIR
1592 #ifndef HAS_SOCKETPAIR
1594 # define socketpair Perl_my_socketpair
1599 # define htoni htons
1600 # define ntohi ntohs
1602 # define htoni htonl
1603 # define ntohi ntohl
1606 /* Configure already sets Direntry_t */
1607 #if defined(I_DIRENT)
1608 # include <dirent.h>
1609 #elif defined(I_SYS_NDIR)
1610 # include <sys/ndir.h>
1611 #elif defined(I_SYS_DIR)
1612 # include <sys/dir.h>
1616 * The following gobbledygook brought to you on behalf of __STDC__.
1617 * (I could just use #ifndef __STDC__, but this is more bulletproof
1618 * in the face of half-implementations.)
1621 #if defined(I_SYSMODE)
1622 #include <sys/mode.h>
1627 # define S_IFMT _S_IFMT
1629 # define S_IFMT 0170000
1634 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1638 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1643 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1645 # define S_ISBLK(m) (0)
1650 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1655 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1657 # define S_ISFIFO(m) (0)
1663 # define S_ISLNK(m) _S_ISLNK(m)
1664 # elif defined(_S_IFLNK)
1665 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1666 # elif defined(S_IFLNK)
1667 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1669 # define S_ISLNK(m) (0)
1675 # define S_ISSOCK(m) _S_ISSOCK(m)
1676 # elif defined(_S_IFSOCK)
1677 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1678 # elif defined(S_IFSOCK)
1679 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1681 # define S_ISSOCK(m) (0)
1687 # define S_IRUSR S_IREAD
1688 # define S_IWUSR S_IWRITE
1689 # define S_IXUSR S_IEXEC
1691 # define S_IRUSR 0400
1692 # define S_IWUSR 0200
1693 # define S_IXUSR 0100
1699 # define S_IRGRP (S_IRUSR>>3)
1700 # define S_IWGRP (S_IWUSR>>3)
1701 # define S_IXGRP (S_IXUSR>>3)
1703 # define S_IRGRP 0040
1704 # define S_IWGRP 0020
1705 # define S_IXGRP 0010
1711 # define S_IROTH (S_IRUSR>>6)
1712 # define S_IWOTH (S_IWUSR>>6)
1713 # define S_IXOTH (S_IXUSR>>6)
1715 # define S_IROTH 0040
1716 # define S_IWOTH 0020
1717 # define S_IXOTH 0010
1722 # define S_ISUID 04000
1726 # define S_ISGID 02000
1730 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1734 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1738 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1741 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1742 * which would get included through <sys/file.h >, but that is 3000
1743 * lines in the future. --jhi */
1745 #if !defined(S_IREAD) && !defined(__HAIKU__)
1746 # define S_IREAD S_IRUSR
1749 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1750 # define S_IWRITE S_IWUSR
1754 # define S_IEXEC S_IXUSR
1757 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1758 # define SLOPPYDIVIDE
1765 /* This used to be conditionally defined based on whether we had a sprintf()
1766 * that correctly returns the string length (as required by C89), but we no
1767 * longer need that. XS modules can (and do) use this name, so it must remain
1768 * a part of the API that's visible to modules.
1770 =head1 Miscellaneous Functions
1772 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1774 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1779 #define my_sprintf sprintf
1782 * If we have v?snprintf() and the C99 variadic macros, we can just
1783 * use just the v?snprintf(). It is nice to try to trap the buffer
1784 * overflow, however, so if we are DEBUGGING, and we cannot use the
1785 * gcc statement expressions, then use the function wrappers which try
1786 * to trap the overflow. If we can use the gcc statement expressions,
1787 * we can try that even with the version that uses the C99 variadic
1791 /* Note that we do not check against snprintf()/vsnprintf() returning
1792 * negative values because that is non-standard behaviour and we use
1793 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1794 * that should be true only if the snprintf()/vsnprintf() are true
1795 * to the standard. */
1797 #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
1800 # define my_snprintf Perl_my_snprintf
1801 # define PERL_MY_SNPRINTF_GUARDED
1802 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1803 # ifdef PERL_USE_GCC_BRACE_GROUPS
1804 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1805 # define PERL_MY_SNPRINTF_GUARDED
1807 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1810 # define my_snprintf Perl_my_snprintf
1811 # define PERL_MY_SNPRINTF_GUARDED
1814 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1815 * dies if called under USE_QUADMATH. */
1816 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1817 # ifdef PERL_USE_GCC_BRACE_GROUPS
1818 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1819 # define PERL_MY_VSNPRINTF_GUARDED
1821 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1824 # define my_vsnprintf Perl_my_vsnprintf
1825 # define PERL_MY_VSNPRINTF_GUARDED
1828 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1829 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1830 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1831 * completely ignore it: otherwise you cannot know whether your output
1834 * int len = my_sprintf(buf, max, ...);
1835 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1837 * The trick is that in certain platforms [a] the my_sprintf() already
1838 * contains the sanity check, while in certain platforms [b] it needs
1839 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1840 * platforms the POST_GUARD actually does nothing since the check has
1841 * already been done. Watch out for the max being the same in both calls.
1843 * If you actually use the snprintf/vsnprintf return value already,
1844 * you assumedly are checking its validity somehow. But you can
1845 * insert the POST_GUARD() also in that case. */
1847 #ifndef PERL_MY_SNPRINTF_GUARDED
1848 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1850 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1853 #ifndef PERL_MY_VSNPRINTF_GUARDED
1854 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1856 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1860 # define my_strlcat strlcat
1863 #if defined(PERL_CORE) || defined(PERL_EXT)
1865 # define my_memrchr memrchr
1867 # define my_memrchr S_my_memrchr
1872 # define my_strlcpy strlcpy
1876 # define my_strnlen strnlen
1880 The IV type is supposed to be long enough to hold any integral
1882 --Andy Dougherty August 1996
1888 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1889 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1890 # define IV_MAX INT64_MAX
1891 # define IV_MIN INT64_MIN
1892 # define UV_MAX UINT64_MAX
1894 # define UINT64_MIN 0
1896 # define UV_MIN UINT64_MIN
1898 # define IV_MAX PERL_QUAD_MAX
1899 # define IV_MIN PERL_QUAD_MIN
1900 # define UV_MAX PERL_UQUAD_MAX
1901 # define UV_MIN PERL_UQUAD_MIN
1906 # if defined(INT32_MAX) && IVSIZE == 4
1907 # define IV_MAX INT32_MAX
1908 # define IV_MIN INT32_MIN
1909 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1910 # define UV_MAX UINT32_MAX
1912 # define UV_MAX 4294967295U
1915 # define UINT32_MIN 0
1917 # define UV_MIN UINT32_MIN
1919 # define IV_MAX PERL_LONG_MAX
1920 # define IV_MIN PERL_LONG_MIN
1921 # define UV_MAX PERL_ULONG_MAX
1922 # define UV_MIN PERL_ULONG_MIN
1933 #if !defined(PERL_CORE)
1934 /* We think that removing this decade-old undef this will cause too much
1935 breakage on CPAN for too little gain. (See RT #119753)
1936 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1942 #define Size_t_MAX (~(Size_t)0)
1943 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1945 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1946 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1948 #ifndef NO_PERL_PRESERVE_IVUV
1949 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1953 * The macros INT2PTR and NUM2PTR are (despite their names)
1954 * bi-directional: they will convert int/float to or from pointers.
1955 * However the conversion to int/float are named explicitly:
1956 * PTR2IV, PTR2UV, PTR2NV.
1958 * For int conversions we do not need two casts if pointers are
1959 * the same size as IV and UV. Otherwise we need an explicit
1960 * cast (PTRV) to avoid compiler warnings.
1962 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1964 # define INT2PTR(any,d) (any)(d)
1965 #elif PTRSIZE == LONGSIZE
1966 # define PTRV unsigned long
1967 # define PTR2ul(p) (unsigned long)(p)
1969 # define PTRV unsigned
1973 # define INT2PTR(any,d) (any)(PTRV)(d)
1977 # define PTR2ul(p) INT2PTR(unsigned long,p)
1980 #define NUM2PTR(any,d) (any)(PTRV)(d)
1981 #define PTR2IV(p) INT2PTR(IV,p)
1982 #define PTR2UV(p) INT2PTR(UV,p)
1983 #define PTR2NV(p) NUM2PTR(NV,p)
1984 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1986 /* According to strict ANSI C89 one cannot freely cast between
1987 * data pointers and function (code) pointers. There are at least
1988 * two ways around this. One (used below) is to do two casts,
1989 * first the other pointer to an (unsigned) integer, and then
1990 * the integer to the other pointer. The other way would be
1991 * to use unions to "overlay" the pointers. For an example of
1992 * the latter technique, see union dirpu in struct xpvio in sv.h.
1993 * The only feasible use is probably temporarily storing
1994 * function pointers in a data pointer (such as a void pointer). */
1996 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1997 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1999 #ifdef USE_LONG_DOUBLE
2000 # if LONG_DOUBLESIZE == DOUBLESIZE
2001 # define LONG_DOUBLE_EQUALS_DOUBLE
2002 # undef USE_LONG_DOUBLE /* Ouch! */
2006 /* The following is all to get LDBL_DIG, in order to pick a nice
2007 default value for printing floating point numbers in Gconvert.
2010 #ifndef HAS_LDBL_DIG
2011 # if LONG_DOUBLESIZE == 10
2012 # define LDBL_DIG 18 /* assume IEEE */
2013 # elif LONG_DOUBLESIZE == 12
2014 # define LDBL_DIG 18 /* gcc? */
2015 # elif LONG_DOUBLESIZE == 16
2016 # define LDBL_DIG 33 /* assume IEEE */
2017 # elif LONG_DOUBLESIZE == DOUBLESIZE
2018 # define LDBL_DIG DBL_DIG /* bummer */
2025 # include <ieeefp.h>
2028 #if defined(__DECC) && defined(__osf__)
2029 /* Also Tru64 cc has broken NaN comparisons. */
2030 # define NAN_COMPARE_BROKEN
2033 # define NAN_COMPARE_BROKEN
2036 #ifdef USE_LONG_DOUBLE
2038 # include <sunmath.h>
2040 # if defined(LDBL_DIG)
2041 # define NV_DIG LDBL_DIG
2042 # ifdef LDBL_MANT_DIG
2043 # define NV_MANT_DIG LDBL_MANT_DIG
2046 # define NV_MIN LDBL_MIN
2049 # define NV_MAX LDBL_MAX
2051 # ifdef LDBL_MIN_EXP
2052 # define NV_MIN_EXP LDBL_MIN_EXP
2054 # ifdef LDBL_MAX_EXP
2055 # define NV_MAX_EXP LDBL_MAX_EXP
2057 # ifdef LDBL_MIN_10_EXP
2058 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2060 # ifdef LDBL_MAX_10_EXP
2061 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2063 # ifdef LDBL_EPSILON
2064 # define NV_EPSILON LDBL_EPSILON
2067 # define NV_MAX LDBL_MAX
2068 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2069 # elif defined(HUGE_VALL)
2070 # define NV_MAX HUGE_VALL
2073 # if defined(HAS_SQRTL)
2074 # define Perl_acos acosl
2075 # define Perl_asin asinl
2076 # define Perl_atan atanl
2077 # define Perl_atan2 atan2l
2078 # define Perl_ceil ceill
2079 # define Perl_cos cosl
2080 # define Perl_cosh coshl
2081 # define Perl_exp expl
2082 /* no Perl_fabs, but there's PERL_ABS */
2083 # define Perl_floor floorl
2084 # define Perl_fmod fmodl
2085 # define Perl_log logl
2086 # define Perl_log10 log10l
2087 # define Perl_pow powl
2088 # define Perl_sin sinl
2089 # define Perl_sinh sinhl
2090 # define Perl_sqrt sqrtl
2091 # define Perl_tan tanl
2092 # define Perl_tanh tanhl
2094 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2097 # define Perl_modf(x,y) modfl(x,y)
2098 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2099 prototype in <math.h> */
2100 # ifndef HAS_MODFL_PROTO
2101 EXTERN_C long double modfl(long double, long double *);
2103 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2104 extern long double Perl_my_modfl(long double x, long double *ip);
2105 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2110 # define Perl_frexp(x,y) frexpl(x,y)
2111 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2112 extern long double Perl_my_frexpl(long double x, int *e);
2113 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2118 # define Perl_ldexp(x, y) ldexpl(x,y)
2119 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2120 # define Perl_ldexp(x,y) scalbnl(x,y)
2124 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2125 # define Perl_isnan(x) isnanl(x)
2126 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2127 # define Perl_isnan(x) isnan(x)
2131 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2132 # define Perl_isinf(x) isinfl(x)
2133 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2134 # define Perl_isinf(x) isinf(x)
2135 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2136 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2139 # ifndef Perl_isfinite
2140 # define Perl_isfinite(x) Perl_isfinitel(x)
2142 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2143 # include <quadmath.h>
2144 # define NV_DIG FLT128_DIG
2145 # define NV_MANT_DIG FLT128_MANT_DIG
2146 # define NV_MIN FLT128_MIN
2147 # define NV_MAX FLT128_MAX
2148 # define NV_MIN_EXP FLT128_MIN_EXP
2149 # define NV_MAX_EXP FLT128_MAX_EXP
2150 # define NV_EPSILON FLT128_EPSILON
2151 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2152 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2153 # define Perl_acos acosq
2154 # define Perl_asin asinq
2155 # define Perl_atan atanq
2156 # define Perl_atan2 atan2q
2157 # define Perl_ceil ceilq
2158 # define Perl_cos cosq
2159 # define Perl_cosh coshq
2160 # define Perl_exp expq
2161 /* no Perl_fabs, but there's PERL_ABS */
2162 # define Perl_floor floorq
2163 # define Perl_fmod fmodq
2164 # define Perl_log logq
2165 # define Perl_log10 log10q
2166 # define Perl_signbit signbitq
2167 # define Perl_pow powq
2168 # define Perl_sin sinq
2169 # define Perl_sinh sinhq
2170 # define Perl_sqrt sqrtq
2171 # define Perl_tan tanq
2172 # define Perl_tanh tanhq
2173 # define Perl_modf(x,y) modfq(x,y)
2174 # define Perl_frexp(x,y) frexpq(x,y)
2175 # define Perl_ldexp(x, y) ldexpq(x,y)
2176 # define Perl_isinf(x) isinfq(x)
2177 # define Perl_isnan(x) isnanq(x)
2178 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2179 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2180 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2181 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2182 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2183 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2184 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2186 # define NV_DIG DBL_DIG
2187 # define NV_MANT_DIG DBL_MANT_DIG
2188 # define NV_MIN DBL_MIN
2189 # define NV_MAX DBL_MAX
2190 # define NV_MIN_EXP DBL_MIN_EXP
2191 # define NV_MAX_EXP DBL_MAX_EXP
2192 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2193 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2194 # define NV_EPSILON DBL_EPSILON
2195 # define NV_MAX DBL_MAX
2196 # define NV_MIN DBL_MIN
2198 /* These math interfaces are C89. */
2199 # define Perl_acos acos
2200 # define Perl_asin asin
2201 # define Perl_atan atan
2202 # define Perl_atan2 atan2
2203 # define Perl_ceil ceil
2204 # define Perl_cos cos
2205 # define Perl_cosh cosh
2206 # define Perl_exp exp
2207 /* no Perl_fabs, but there's PERL_ABS */
2208 # define Perl_floor floor
2209 # define Perl_fmod fmod
2210 # define Perl_log log
2211 # define Perl_log10 log10
2212 # define Perl_pow pow
2213 # define Perl_sin sin
2214 # define Perl_sinh sinh
2215 # define Perl_sqrt sqrt
2216 # define Perl_tan tan
2217 # define Perl_tanh tanh
2219 # define Perl_modf(x,y) modf(x,y)
2220 # define Perl_frexp(x,y) frexp(x,y)
2221 # define Perl_ldexp(x,y) ldexp(x,y)
2225 # define Perl_isnan(x) isnan(x)
2229 # if defined(HAS_ISINF)
2230 # define Perl_isinf(x) isinf(x)
2231 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2232 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2235 # ifndef Perl_isfinite
2236 # ifdef HAS_ISFINITE
2237 # define Perl_isfinite(x) isfinite(x)
2238 # elif defined(HAS_FINITE)
2239 # define Perl_isfinite(x) finite(x)
2244 /* fpclassify(): C99. It is supposed to be a macro that switches on
2245 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2246 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2248 # if defined(FP_INFINITE) && defined(FP_NAN)
2249 # define Perl_fp_class(x) fpclassify(x)
2250 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2251 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2252 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2253 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2254 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2255 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2256 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2257 * actually not the C99 fpclassify, with its own set of return defines. */
2258 # define Perl_fp_class(x) fpclassify(x)
2259 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2260 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2261 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2262 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2263 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2264 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2265 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2266 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2267 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2268 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2270 # undef Perl_fp_class /* Unknown set of defines */
2274 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2275 * are identical to the C99 fpclassify(). */
2276 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2279 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2281 /* oh, and the isnormal macro has a typo in it! */
2283 # define isnormal(x) Perl_fp_class_norm(x)
2285 # if defined(FP_INFINITE) && defined(FP_NAN)
2286 # define Perl_fp_class(x) fp_classify(x)
2287 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2288 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2289 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2290 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2291 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2293 # undef Perl_fp_class /* Unknown set of defines */
2297 /* Feel free to check with me for the SGI manpages, SGI testing,
2298 * etcetera, if you want to try getting this to work with IRIX.
2300 * - Allen <allens@cpan.org> */
2302 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2303 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2304 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2305 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2306 * Define some symbols also as cpp symbols so we can detect them. */
2307 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2308 # define FP_PINF FP_PINF
2309 # define FP_QNAN FP_QNAN
2313 # include <ieeefp.h>
2318 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2319 # define Perl_fp_class(x) fpclassl(x)
2321 # define Perl_fp_class(x) fpclass(x)
2323 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2324 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2325 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2326 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2327 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2328 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2329 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2330 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2331 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2332 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2333 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2334 # elif defined(FP_PINF) && defined(FP_QNAN)
2335 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2336 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2337 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2338 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2339 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2340 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2341 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2342 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2343 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2344 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2346 # undef Perl_fp_class /* Unknown set of defines */
2350 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2351 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2353 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2354 # include <fp_class.h>
2356 # if defined(FP_POS_INF) && defined(FP_QNAN)
2357 # ifdef __sgi /* XXX Configure test instead */
2358 # ifdef USE_LONG_DOUBLE
2359 # define Perl_fp_class(x) fp_class_l(x)
2361 # define Perl_fp_class(x) fp_class_d(x)
2364 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2365 # define Perl_fp_class(x) fp_classl(x)
2367 # define Perl_fp_class(x) fp_class(x)
2370 # if defined(FP_POS_INF) && defined(FP_QNAN)
2371 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2372 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2373 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2374 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2375 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2376 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2377 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2378 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2379 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2380 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2382 # undef Perl_fp_class /* Unknown set of defines */
2387 /* class(), _class(): Legacy: AIX. */
2388 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2390 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2392 # define Perl_fp_class(x) class(x)
2394 # define Perl_fp_class(x) _class(x)
2396 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2397 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2398 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2399 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2400 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2401 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2402 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2403 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2404 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2405 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2406 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2408 # undef Perl_fp_class /* Unknown set of defines */
2413 /* Win32: _fpclass(), _isnan(), _finite(). */
2416 # define Perl_isnan(x) _isnan(x)
2418 # ifndef Perl_isfinite
2419 # define Perl_isfinite(x) _finite(x)
2421 # ifndef Perl_fp_class_snan
2422 /* No simple way to #define Perl_fp_class because _fpclass()
2423 * returns a set of bits. */
2424 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2425 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2426 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2427 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2428 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2429 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2430 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2431 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2432 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2433 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2434 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2435 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2436 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2437 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2438 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2442 #if !defined(Perl_fp_class_inf) && \
2443 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2444 # define Perl_fp_class_inf(x) \
2445 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2448 #if !defined(Perl_fp_class_nan) && \
2449 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2450 # define Perl_fp_class_nan(x) \
2451 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2454 #if !defined(Perl_fp_class_zero) && \
2455 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2456 # define Perl_fp_class_zero(x) \
2457 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2460 #if !defined(Perl_fp_class_norm) && \
2461 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2462 # define Perl_fp_class_norm(x) \
2463 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2466 #if !defined(Perl_fp_class_denorm) && \
2467 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2468 # define Perl_fp_class_denorm(x) \
2469 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2473 # ifdef Perl_fp_class_nan
2474 # define Perl_isnan(x) Perl_fp_class_nan(x)
2475 # elif defined(HAS_UNORDERED)
2476 # define Perl_isnan(x) unordered((x), 0.0)
2478 # define Perl_isnan(x) ((x)!=(x))
2483 # ifdef Perl_fp_class_inf
2484 # define Perl_isinf(x) Perl_fp_class_inf(x)
2488 #ifndef Perl_isfinite
2489 # if defined(HAS_ISFINITE) && !defined(isfinite)
2490 # define Perl_isfinite(x) isfinite((double)(x))
2491 # elif defined(HAS_FINITE)
2492 # define Perl_isfinite(x) finite((double)(x))
2493 # elif defined(Perl_fp_class_finite)
2494 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2496 /* For the infinities the multiplication returns nan,
2497 * for the nan the multiplication also returns nan,
2498 * for everything else (that is, finite) zero should be returned. */
2499 # define Perl_isfinite(x) (((x) * 0) == 0)
2504 # if defined(Perl_isfinite) && defined(Perl_isnan)
2505 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2509 /* We need Perl_isfinitel (ends with ell) (if available) even when
2510 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2512 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2513 /* If isfinite() is a macro and looks like we have C99,
2514 * we assume it's the type-aware C99 isfinite(). */
2515 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2516 # define Perl_isfinitel(x) isfinite(x)
2517 # elif defined(HAS_ISFINITEL)
2518 # define Perl_isfinitel(x) isfinitel(x)
2519 # elif defined(HAS_FINITEL)
2520 # define Perl_isfinitel(x) finitel(x)
2521 # elif defined(HAS_INFL) && defined(HAS_NANL)
2522 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2524 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2528 /* The default is to use Perl's own atof() implementation (in numeric.c).
2529 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2530 * it is however best to use the native implementation of atof.
2531 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2532 * Some good tests to try out with either setting are t/base/num.t,
2533 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2534 * you may need to be using a different function than atof! */
2536 #ifndef USE_PERL_ATOF
2538 # define USE_PERL_ATOF
2541 # if USE_PERL_ATOF == 0
2542 # undef USE_PERL_ATOF
2546 #ifdef USE_PERL_ATOF
2547 # define Perl_atof(s) Perl_my_atof(s)
2548 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2550 # define Perl_atof(s) (NV)atof(s)
2551 # define Perl_atof2(s, n) ((n) = atof(s))
2553 #define my_atof2(a,b) my_atof3(a,b,0)
2556 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2557 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2558 * depending on local options. Until Configure detects this (or at least
2559 * detects whether the "signed" keyword is available) the CHAR ranges
2560 * will not be included. UCHAR functions normally.
2564 #define PERL_UCHAR_MIN ((unsigned char)0)
2565 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2567 #define PERL_USHORT_MIN ((unsigned short)0)
2568 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2570 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2571 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2573 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2574 #define PERL_UINT_MIN ((unsigned int)0)
2576 #define PERL_INT_MAX ((int)INT_MAX)
2577 #define PERL_INT_MIN ((int)INT_MIN)
2579 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2580 #define PERL_ULONG_MIN ((unsigned long)0L)
2582 #define PERL_LONG_MAX ((long)LONG_MAX)
2583 #define PERL_LONG_MIN ((long)LONG_MIN)
2586 # define PERL_UQUAD_MAX (~(UV)0)
2587 # define PERL_UQUAD_MIN ((UV)0)
2588 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2589 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2593 =head1 Numeric functions
2595 =for apidoc AmnUh||PERL_INT_MIN
2596 =for apidoc AmnUh||PERL_LONG_MAX
2597 =for apidoc AmnUh||PERL_LONG_MIN
2598 =for apidoc AmnUh||PERL_QUAD_MAX
2599 =for apidoc AmnUh||PERL_SHORT_MAX
2600 =for apidoc AmnUh||PERL_SHORT_MIN
2601 =for apidoc AmnUh||PERL_UCHAR_MAX
2602 =for apidoc AmnUh||PERL_UCHAR_MIN
2603 =for apidoc AmnUh||PERL_UINT_MAX
2604 =for apidoc AmnUh||PERL_ULONG_MAX
2605 =for apidoc AmnUh||PERL_ULONG_MIN
2606 =for apidoc AmnUh||PERL_UQUAD_MAX
2607 =for apidoc AmnUh||PERL_UQUAD_MIN
2608 =for apidoc AmnUh||PERL_USHORT_MAX
2609 =for apidoc AmnUh||PERL_USHORT_MIN
2610 =for apidoc AmnUh||PERL_QUAD_MIN
2611 =for apidoc AmnU||PERL_INT_MAX
2629 give the largest and smallest number representable in the current
2630 platform in variables of the corresponding types.
2632 For signed types, the smallest representable number is the most negative
2633 number, the one furthest away from zero.
2635 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2636 are available to the C code. But these constants, furnished by Perl,
2637 allow code compiled on earlier compilers to portably have access to the same
2644 typedef MEM_SIZE STRLEN;
2646 typedef struct op OP;
2647 typedef struct cop COP;
2648 typedef struct unop UNOP;
2649 typedef struct unop_aux UNOP_AUX;
2650 typedef struct binop BINOP;
2651 typedef struct listop LISTOP;
2652 typedef struct logop LOGOP;
2653 typedef struct pmop PMOP;
2654 typedef struct svop SVOP;
2655 typedef struct padop PADOP;
2656 typedef struct pvop PVOP;
2657 typedef struct loop LOOP;
2658 typedef struct methop METHOP;
2661 typedef struct opslab OPSLAB;
2662 typedef struct opslot OPSLOT;
2665 typedef struct block_hooks BHK;
2666 typedef struct custom_op XOP;
2668 typedef struct interpreter PerlInterpreter;
2670 /* SGI's <sys/sema.h> has struct sv */
2672 # define STRUCT_SV perl_sv
2674 # define STRUCT_SV sv
2676 typedef struct STRUCT_SV SV;
2677 typedef struct av AV;
2678 typedef struct hv HV;
2679 typedef struct cv CV;
2680 typedef struct p5rx REGEXP;
2681 typedef struct gp GP;
2682 typedef struct gv GV;
2683 typedef struct io IO;
2684 typedef struct context PERL_CONTEXT;
2685 typedef struct block BLOCK;
2687 typedef struct magic MAGIC;
2688 typedef struct xpv XPV;
2689 typedef struct xpviv XPVIV;
2690 typedef struct xpvuv XPVUV;
2691 typedef struct xpvnv XPVNV;
2692 typedef struct xpvmg XPVMG;
2693 typedef struct xpvlv XPVLV;
2694 typedef struct xpvinvlist XINVLIST;
2695 typedef struct xpvav XPVAV;
2696 typedef struct xpvhv XPVHV;
2697 typedef struct xpvgv XPVGV;
2698 typedef struct xpvcv XPVCV;
2699 typedef struct xpvbm XPVBM;
2700 typedef struct xpvfm XPVFM;
2701 typedef struct xpvio XPVIO;
2702 typedef struct mgvtbl MGVTBL;
2703 typedef union any ANY;
2704 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2705 typedef struct ptr_tbl PTR_TBL_t;
2706 typedef struct clone_params CLONE_PARAMS;
2708 /* a pad is currently just an AV; but that might change,
2709 * so hide the type. */
2710 typedef struct padlist PADLIST;
2712 typedef struct padnamelist PADNAMELIST;
2713 typedef struct padname PADNAME;
2715 /* always enable PERL_OP_PARENT */
2716 #if !defined(PERL_OP_PARENT)
2717 # define PERL_OP_PARENT
2720 /* enable PERL_COPY_ON_WRITE by default */
2721 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2722 # define PERL_COPY_ON_WRITE
2725 #ifdef PERL_COPY_ON_WRITE
2726 # define PERL_ANY_COW
2728 # define PERL_SAWAMPERSAND
2731 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2732 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2736 #include "charclass_invlists.h"
2738 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2739 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2740 # define USE_64_BIT_RAWIO /* implicit */
2744 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2745 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2746 * however, because operating systems like to do that themself. */
2749 # define FSEEKSIZE LSEEKSIZE
2751 # define FSEEKSIZE LONGSIZE
2755 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2756 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2757 # define USE_64_BIT_STDIO /* implicit */
2761 #ifdef USE_64_BIT_RAWIO
2764 # define Off_t off64_t
2766 # define LSEEKSIZE 8
2768 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2769 * will trigger defines like the ones below. Some 64-bit environments,
2770 * however, do not. Therefore we have to explicitly mix and match. */
2771 # if defined(USE_OPEN64)
2772 # define open open64
2774 # if defined(USE_LSEEK64)
2775 # define lseek lseek64
2777 # if defined(USE_LLSEEK)
2778 # define lseek llseek
2781 # if defined(USE_STAT64)
2782 # define stat stat64
2784 # if defined(USE_FSTAT64)
2785 # define fstat fstat64
2787 # if defined(USE_LSTAT64)
2788 # define lstat lstat64
2790 # if defined(USE_FLOCK64)
2791 # define flock flock64
2793 # if defined(USE_LOCKF64)
2794 # define lockf lockf64
2796 # if defined(USE_FCNTL64)
2797 # define fcntl fcntl64
2799 # if defined(USE_TRUNCATE64)
2800 # define truncate truncate64
2802 # if defined(USE_FTRUNCATE64)
2803 # define ftruncate ftruncate64
2807 #ifdef USE_64_BIT_STDIO
2808 # ifdef HAS_FPOS64_T
2810 # define Fpos_t fpos64_t
2812 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2813 * will trigger defines like the ones below. Some 64-bit environments,
2814 * however, do not. */
2815 # if defined(USE_FOPEN64)
2816 # define fopen fopen64
2818 # if defined(USE_FSEEK64)
2819 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2821 # if defined(USE_FTELL64)
2822 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2824 # if defined(USE_FSETPOS64)
2825 # define fsetpos fsetpos64
2827 # if defined(USE_FGETPOS64)
2828 # define fgetpos fgetpos64
2830 # if defined(USE_TMPFILE64)
2831 # define tmpfile tmpfile64
2833 # if defined(USE_FREOPEN64)
2834 # define freopen freopen64
2839 # include "iperlsys.h"
2844 # include "os2ish.h"
2846 # include "dosish.h"
2849 # include "vmsish.h"
2850 #elif defined(PLAN9)
2851 # include "./plan9/plan9ish.h"
2852 #elif defined(__VOS__)
2854 # include "./vos/vosish.h"
2856 # include "vos/vosish.h"
2858 #elif defined(__SYMBIAN32__)
2859 # include "symbian/symbianish.h"
2860 #elif defined(__HAIKU__)
2861 # include "haiku/haikuish.h"
2863 # include "unixish.h"
2867 # include "amigaos.h"
2868 # undef FD_CLOEXEC /* a lie in AmigaOS */
2871 /* NSIG logic from Configure --> */
2874 # define NSIG (_NSIG)
2875 # elif defined(SIGMAX)
2876 # define NSIG (SIGMAX+1)
2877 # elif defined(SIG_MAX)
2878 # define NSIG (SIG_MAX+1)
2879 # elif defined(_SIG_MAX)
2880 # define NSIG (_SIG_MAX+1)
2881 # elif defined(MAXSIG)
2882 # define NSIG (MAXSIG+1)
2883 # elif defined(MAX_SIG)
2884 # define NSIG (MAX_SIG+1)
2885 # elif defined(SIGARRAYSIZE)
2886 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2887 # elif defined(_sys_nsig)
2888 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2890 /* Default to some arbitrary number that's big enough to get most
2891 * of the common signals. */
2895 /* <-- NSIG logic from Configure */
2897 #ifndef NO_ENVIRON_ARRAY
2898 # define USE_ENVIRON_ARRAY
2902 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2903 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2904 * signal handlers. But the perl core itself only fully supports 1-arg
2905 * handlers, so don't enable for now.
2906 * NB: POSIX::sigaction() supports both.
2908 * # define PERL_USE_3ARG_SIGHANDLER
2913 * This is an alias for the OS's siginfo_t, except that where the OS
2914 * doesn't support it, declare a dummy version instead. This allows us to
2915 * have signal handler functions which always have a Siginfo_t parameter
2916 * regardless of platform, (and which will just be passed a NULL value
2917 * where the OS doesn't support HAS_SIGACTION).
2920 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2921 typedef siginfo_t Siginfo_t;
2930 * initialise to avoid floating-point exceptions from overflow, etc
2932 #ifndef PERL_FPU_INIT
2933 # ifdef HAS_FPSETMASK
2934 # if HAS_FLOATINGPOINT_H
2935 # include <floatingpoint.h>
2937 /* Some operating systems have this as a macro, which in turn expands to a comma
2938 expression, and the last sub-expression is something that gets calculated,
2939 and then they have the gall to warn that a value computed is not used. Hence
2941 # define PERL_FPU_INIT (void)fpsetmask(0)
2942 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2943 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2944 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2945 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2947 # define PERL_FPU_INIT
2950 #ifndef PERL_FPU_PRE_EXEC
2951 # define PERL_FPU_PRE_EXEC {
2952 # define PERL_FPU_POST_EXEC }
2955 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2956 * We need to reenable the "invalid" trap because otherwise generation
2957 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2958 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2960 # include <machine/fpu.h>
2961 # define PERL_SYS_FPU_INIT \
2963 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2964 signal(SIGFPE, SIG_IGN); \
2967 /* In IRIX the default for Flush to Zero bit is true,
2968 * which means that results going below the minimum of normal
2969 * floating points go to zero, instead of going denormal/subnormal.
2970 * This is unlike almost any other system running Perl, so let's clear it.
2971 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2972 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2974 * XXX The flush-to-zero behaviour should be a Configure scan.
2975 * To change the behaviour usually requires some system-specific
2976 * incantation, though, like the below. */
2978 # include <sys/fpu.h>
2979 # define PERL_SYS_FPU_INIT \
2981 union fpc_csr csr; \
2982 csr.fc_word = get_fpc_csr(); \
2983 csr.fc_struct.flush = 0; \
2984 set_fpc_csr(csr.fc_word); \
2988 #ifndef PERL_SYS_FPU_INIT
2989 # define PERL_SYS_FPU_INIT NOOP
2992 #ifndef PERL_SYS_INIT3_BODY
2993 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2997 =head1 Miscellaneous Functions
2999 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3000 Provides system-specific tune up of the C runtime environment necessary to
3001 run Perl interpreters. This should be called only once, before creating
3002 any Perl interpreters.
3004 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3005 Provides system-specific tune up of the C runtime environment necessary to
3006 run Perl interpreters. This should be called only once, before creating
3007 any Perl interpreters.
3009 =for apidoc Am|void|PERL_SYS_TERM|
3010 Provides system-specific clean up of the C runtime environment after
3011 running Perl interpreters. This should be called only once, after
3012 freeing any remaining Perl interpreters.
3017 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3018 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3019 #define PERL_SYS_TERM() Perl_sys_term()
3021 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3022 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3027 # ifdef _POSIX_PATH_MAX
3028 # if PATH_MAX > _POSIX_PATH_MAX
3029 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3030 * included the null byte or not. Later amendments of POSIX,
3031 * XPG4, the Austin Group, and the Single UNIX Specification
3032 * all explicitly include the null byte in the PATH_MAX.
3033 * Ditto for _POSIX_PATH_MAX. */
3034 # define MAXPATHLEN PATH_MAX
3036 # define MAXPATHLEN _POSIX_PATH_MAX
3039 # define MAXPATHLEN (PATH_MAX+1)
3042 # define MAXPATHLEN 1024 /* Err on the large side. */
3046 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
3047 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
3048 * this results in many functions being undeclared which bothers C++
3049 * May make sense to have threads after "*ish.h" anyway
3052 /* clang Thread Safety Analysis/Annotations/Attributes
3053 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3055 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3056 * Apple XCode hijacks __clang_major__ and __clang_minor__
3057 * (6.1 means really clang 3.6), so needs extra hijinks
3058 * (could probably also test the contents of __apple_build_version__).
3060 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3061 defined(__clang__) && \
3062 !defined(PERL_GLOBAL_STRUCT) && \
3063 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3065 ((!defined(__apple_build_version__) && \
3066 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3067 (__clang_major__ >= 4))) || \
3068 (defined(__apple_build_version__) && \
3069 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3070 (__clang_major__ >= 7))))
3071 # define PERL_TSA__(x) __attribute__((x))
3072 # define PERL_TSA_ACTIVE
3074 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3075 # undef PERL_TSA_ACTIVE
3078 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3079 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3081 #define PERL_TSA_CAPABILITY(x) \
3082 PERL_TSA__(capability(x))
3084 /* In the below examples the mutex must be lexically visible, usually
3085 * either as global variables, or as function arguments. */
3087 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3089 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3091 #define PERL_TSA_GUARDED_BY(x) \
3092 PERL_TSA__(guarded_by(x))
3094 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3095 * The data _behind_ the pointer is guarded.
3097 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3099 #define PERL_TSA_PT_GUARDED_BY(x) \
3100 PERL_TSA__(pt_guarded_by(x))
3102 /* PERL_TSA_REQUIRES() is used to annotate functions.
3103 * The caller MUST hold the resource when calling the function.
3105 * void Foo() PERL_TSA_REQUIRES(mutex);
3107 #define PERL_TSA_REQUIRES(x) \
3108 PERL_TSA__(requires_capability(x))
3110 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3111 * The caller MUST NOT hold resource when calling the function.
3113 * EXCLUDES should be used when the function first acquires
3114 * the resource and then releases it. Use to avoid deadlock.
3116 * void Foo() PERL_TSA_EXCLUDES(mutex);
3118 #define PERL_TSA_EXCLUDES(x) \
3119 PERL_TSA__(locks_excluded(x))
3121 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3122 * The caller MUST NOT hold the resource when calling the function,
3123 * and the function will acquire the resource.
3125 * void Foo() PERL_TSA_ACQUIRE(mutex);
3127 #define PERL_TSA_ACQUIRE(x) \
3128 PERL_TSA__(acquire_capability(x))
3130 /* PERL_TSA_RELEASE() is used to annotate functions.
3131 * The caller MUST hold the resource when calling the function,
3132 * and the function will release the resource.
3134 * void Foo() PERL_TSA_RELEASE(mutex);
3136 #define PERL_TSA_RELEASE(x) \
3137 PERL_TSA__(release_capability(x))
3139 /* PERL_TSA_NO_TSA is used to annotate functions.
3140 * Used when being intentionally unsafe, or when the code is too
3141 * complicated for the analysis. Use sparingly.
3143 * void Foo() PERL_TSA_NO_TSA;
3145 #define PERL_TSA_NO_TSA \
3146 PERL_TSA__(no_thread_safety_analysis)
3148 /* There are more annotations/attributes available, see the clang
3149 * documentation for details. */
3151 #if defined(USE_ITHREADS)
3153 # include <nw5thread.h>
3154 # elif defined(WIN32)
3155 # include <win32thread.h>
3157 # include "os2thread.h"
3158 # elif defined(I_MACH_CTHREADS)
3159 # include <mach/cthreads.h>
3160 typedef cthread_t perl_os_thread;
3161 typedef mutex_t perl_mutex;
3162 typedef condition_t perl_cond;
3163 typedef void * perl_key;
3164 # elif defined(I_PTHREAD) /* Posix threads */
3165 # include <pthread.h>
3166 typedef pthread_t perl_os_thread;
3167 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3168 typedef pthread_cond_t perl_cond;
3169 typedef pthread_key_t perl_key;
3171 #endif /* USE_ITHREADS */
3173 #ifdef PERL_TSA_ACTIVE
3174 /* Since most pthread mutex interfaces have not been annotated, we
3175 * need to have these wrappers. The NO_TSA annotation is quite ugly
3176 * but it cannot be avoided in plain C, unlike in C++, where one could
3177 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3179 * The bodies of these wrappers are in util.c
3181 * TODO: however, some platforms are starting to get these clang
3182 * thread safety annotations for pthreads, for example FreeBSD.
3183 * Do we need a way to a bypass these wrappers? */
3184 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3185 PERL_TSA_ACQUIRE(*mutex)
3187 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3188 PERL_TSA_RELEASE(*mutex)
3197 # include "netware.h"
3200 #define STATUS_UNIX PL_statusvalue
3202 # define STATUS_NATIVE PL_statusvalue_vms
3204 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3205 * its contents can not be trusted. Unfortunately, Perl seems to check
3206 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3209 # include <stsdef.h>
3211 /* Presume this because if VMS changes it, it will require a new
3212 * set of APIs for waiting on children for binary compatibility.
3214 # define child_offset_bits (8)
3215 # ifndef C_FAC_POSIX
3216 # define C_FAC_POSIX 0x35A000
3219 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3220 * platform from the existing UNIX or Native status values.
3223 # define STATUS_EXIT \
3224 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3225 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3228 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3229 * exit code and shifts the UNIX value over the correct number of bits to
3230 * be a child status. Usually the number of bits is 8, but that could be
3231 * platform dependent. The NATIVE status code is presumed to have either
3232 * from a child process.
3235 /* This is complicated. The child processes return a true native VMS
3236 status which must be saved. But there is an assumption in Perl that
3237 the UNIX child status has some relationship to errno values, so
3238 Perl tries to translate it to text in some of the tests.
3239 In order to get the string translation correct, for the error, errno
3240 must be EVMSERR, but that generates a different text message
3241 than what the test programs are expecting. So an errno value must
3242 be derived from the native status value when an error occurs.
3243 That will hide the true native status message. With this version of
3244 perl, the true native child status can always be retrieved so that
3245 is not a problem. But in this case, Pl_statusvalue and errno may
3246 have different values in them.
3249 # define STATUS_NATIVE_CHILD_SET(n) \
3251 I32 evalue = (I32)n; \
3252 if (evalue == EVMSERR) { \
3253 PL_statusvalue_vms = vaxc$errno; \
3254 PL_statusvalue = evalue; \
3256 PL_statusvalue_vms = evalue; \
3257 if (evalue == -1) { \
3258 PL_statusvalue = -1; \
3259 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3261 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3262 set_vaxc_errno(evalue); \
3263 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3264 set_errno(EVMSERR); \
3265 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3266 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3270 # ifdef VMSISH_STATUS
3271 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3273 # define STATUS_CURRENT STATUS_UNIX
3276 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3277 * the NATIVE status to an equivalent value. Can not be used to translate
3278 * exit code values as exit code values are not guaranteed to have any
3279 * relationship at all to errno values.
3280 * This is used when Perl is forcing errno to have a specific value.
3282 # define STATUS_UNIX_SET(n) \
3284 I32 evalue = (I32)n; \
3285 PL_statusvalue = evalue; \
3286 if (PL_statusvalue != -1) { \
3287 if (PL_statusvalue != EVMSERR) { \
3288 PL_statusvalue &= 0xFFFF; \
3289 if (MY_POSIX_EXIT) \
3290 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3291 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3294 PL_statusvalue_vms = vaxc$errno; \
3297 else PL_statusvalue_vms = SS$_ABORT; \
3298 set_vaxc_errno(PL_statusvalue_vms); \
3301 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3302 * the NATIVE error status based on it.
3304 * When in the default mode to comply with the Perl VMS documentation,
3305 * 0 is a success and any other code sets the NATIVE status to a failure
3306 * code of SS$_ABORT.
3308 * In the new POSIX EXIT mode, native status will be set so that the
3309 * actual exit code will can be retrieved by the calling program or
3312 * If the exit code is not clearly a UNIX parent or child exit status,
3313 * it will be passed through as a VMS status.
3316 # define STATUS_UNIX_EXIT_SET(n) \
3318 I32 evalue = (I32)n; \
3319 PL_statusvalue = evalue; \
3320 if (MY_POSIX_EXIT) { \
3321 if (evalue <= 0xFF00) { \
3322 if (evalue > 0xFF) \
3323 evalue = (evalue >> child_offset_bits) & 0xFF; \
3324 PL_statusvalue_vms = \
3325 (C_FAC_POSIX | (evalue << 3 ) | \
3326 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3327 } else /* forgive them Perl, for they have sinned */ \
3328 PL_statusvalue_vms = evalue; \
3331 PL_statusvalue_vms = SS$_NORMAL; \
3332 else if (evalue <= 0xFF00) \
3333 PL_statusvalue_vms = SS$_ABORT; \
3334 else { /* forgive them Perl, for they have sinned */ \
3335 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3336 else PL_statusvalue_vms = vaxc$errno; \
3337 /* And obviously used a VMS status value instead of UNIX */ \
3338 PL_statusvalue = EVMSERR; \
3340 set_vaxc_errno(PL_statusvalue_vms); \
3345 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3346 * and sets the NATIVE error status based on it. This special case
3347 * is needed to maintain compatibility with past VMS behavior.
3349 * In the default mode on VMS, this number is passed through as
3350 * both the NATIVE and UNIX status. Which makes it different
3351 * that the STATUS_UNIX_EXIT_SET.
3353 * In the new POSIX EXIT mode, native status will be set so that the
3354 * actual exit code will can be retrieved by the calling program or
3357 * A POSIX exit code is from 0 to 255. If the exit code is higher
3358 * than this, it needs to be assumed that it is a VMS exit code and
3362 # define STATUS_EXIT_SET(n) \
3364 I32 evalue = (I32)n; \
3365 PL_statusvalue = evalue; \
3366 if (MY_POSIX_EXIT) \
3367 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3368 PL_statusvalue_vms = \
3369 (C_FAC_POSIX | (evalue << 3 ) | \
3370 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3372 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3373 set_vaxc_errno(PL_statusvalue_vms); \
3377 /* This macro forces a success status */
3378 # define STATUS_ALL_SUCCESS \
3379 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3381 /* This macro forces a failure status */
3382 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3383 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3384 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3386 #elif defined(__amigaos4__)
3387 /* A somewhat experimental attempt to simulate posix return code values */
3388 # define STATUS_NATIVE PL_statusvalue_posix
3389 # define STATUS_NATIVE_CHILD_SET(n) \
3391 PL_statusvalue_posix = (n); \
3392 if (PL_statusvalue_posix < 0) { \
3393 PL_statusvalue = -1; \
3396 PL_statusvalue = n << 8; \
3399 # define STATUS_UNIX_SET(n) \
3401 PL_statusvalue = (n); \
3402 if (PL_statusvalue != -1) \
3403 PL_statusvalue &= 0xFFFF; \
3405 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3406 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3407 # define STATUS_CURRENT STATUS_UNIX
3408 # define STATUS_EXIT STATUS_UNIX
3409 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3410 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3413 # define STATUS_NATIVE PL_statusvalue_posix
3414 # if defined(WCOREDUMP)
3415 # define STATUS_NATIVE_CHILD_SET(n) \
3417 PL_statusvalue_posix = (n); \
3418 if (PL_statusvalue_posix == -1) \
3419 PL_statusvalue = -1; \
3422 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3423 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3424 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3427 # elif defined(WIFEXITED)
3428 # define STATUS_NATIVE_CHILD_SET(n) \
3430 PL_statusvalue_posix = (n); \
3431 if (PL_statusvalue_posix == -1) \
3432 PL_statusvalue = -1; \
3435 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3436 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3440 # define STATUS_NATIVE_CHILD_SET(n) \
3442 PL_statusvalue_posix = (n); \
3443 if (PL_statusvalue_posix == -1) \
3444 PL_statusvalue = -1; \
3447 PL_statusvalue_posix & 0xFFFF; \
3451 # define STATUS_UNIX_SET(n) \
3453 PL_statusvalue = (n); \
3454 if (PL_statusvalue != -1) \
3455 PL_statusvalue &= 0xFFFF; \
3457 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3458 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3459 # define STATUS_CURRENT STATUS_UNIX
3460 # define STATUS_EXIT STATUS_UNIX
3461 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3462 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3465 /* flags in PL_exit_flags for nature of exit() */
3466 #define PERL_EXIT_EXPECTED 0x01
3467 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3468 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3469 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3472 /* format to use for version numbers in file/directory names */
3473 /* XXX move to Configure? */
3474 /* This was only ever used for the current version, and that can be done at
3475 compile time, as PERL_FS_VERSION, so should we just delete it? */
3476 # ifndef PERL_FS_VER_FMT
3477 # define PERL_FS_VER_FMT "%d.%d.%d"
3481 #ifndef PERL_FS_VERSION
3482 # define PERL_FS_VERSION PERL_VERSION_STRING
3485 /* This defines a way to flush all output buffers. This may be a
3486 * performance issue, so we allow people to disable it. Also, if
3487 * we are using stdio, there are broken implementations of fflush(NULL)
3488 * out there, Solaris being the most prominent.
3490 #ifndef PERL_FLUSHALL_FOR_CHILD
3491 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3492 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3493 # elif defined(FFLUSH_ALL)
3494 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3496 # define PERL_FLUSHALL_FOR_CHILD NOOP
3500 #ifndef PERL_WAIT_FOR_CHILDREN
3501 # define PERL_WAIT_FOR_CHILDREN NOOP
3504 /* the traditional thread-unsafe notion of "current interpreter". */
3505 #ifndef PERL_SET_INTERP
3506 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3509 #ifndef PERL_GET_INTERP
3510 # define PERL_GET_INTERP (PL_curinterp)
3513 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3514 # ifdef MULTIPLICITY
3515 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3517 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3521 This replaces the previous %_ "hack" by the "%p" hacks.
3522 All that is required is that the perl source does not
3523 use "%-p" or "%-<number>p" or "%<number>p" formats.
3524 These formats will still work in perl code.
3525 See comments in sv.c for further details.
3527 Robin Barker 2005-07-14
3529 No longer use %1p for VDf = %vd. RMB 2007-10-19
3533 # define SVf_(n) "-" STRINGIFY(n) "p"
3541 # define SVf32 SVf_(32)
3545 # define SVf256 SVf_(256)
3548 #define SVfARG(p) ((void*)(p))
3554 /* Not ideal, but we cannot easily include a number in an already-numeric
3555 * format sequence. */
3557 # define HEKf256 "3p"
3560 #define HEKfARG(p) ((void*)(p))
3563 =for apidoc Amnh||UTF8f
3564 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3567 * %4p is a custom format
3570 # define UTF8f "d%" UVuf "%4p"
3572 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3575 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3578 /* not used; but needed for backward compatibility with XS code? - RMB */
3584 #if !defined(DEBUGGING) && !defined(NDEBUG)
3589 /* For functions that are marked as __attribute__noreturn__, it's not
3590 appropriate to call return. In either case, include the lint directive.
3592 #ifdef HASATTRIBUTE_NORETURN
3593 # define NORETURN_FUNCTION_END NOT_REACHED;
3595 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3598 #ifdef HAS_BUILTIN_EXPECT
3599 # define EXPECT(expr,val) __builtin_expect(expr,val)
3601 # define EXPECT(expr,val) (expr)
3605 =head1 Miscellaneous Functions
3607 =for apidoc AmU|bool|LIKELY|const bool expr
3609 Returns the input unchanged, but at the same time it gives a branch prediction
3610 hint to the compiler that this condition is likely to be true.
3612 =for apidoc AmU|bool|UNLIKELY|const bool expr
3614 Returns the input unchanged, but at the same time it gives a branch prediction
3615 hint to the compiler that this condition is likely to be false.
3619 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3620 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3622 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3626 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3627 time invariants. That is, their argument must be a constant expression that
3628 can be verified by the compiler. This expression can contain anything that's
3629 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3630 the expression evaluates to 0, compilation fails.
3631 Because they generate no runtime code (i.e. their use is "free"), they're
3632 always active, even under non-DEBUGGING builds.
3633 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3634 file scope (outside of any function).
3635 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3638 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3639 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3640 || (__STDC_VERSION__ - 0) >= 201101L)) \
3641 || (defined(__cplusplus) && __cplusplus >= 201103L))
3642 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3643 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3644 matter what <assert.h> says.
3646 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3648 /* We use a bit-field instead of an array because gcc accepts
3649 'typedef char x[n]' where n is not a compile-time constant.
3650 We want to enforce constantness.
3652 # define STATIC_ASSERT_2(COND, SUFFIX) \
3654 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3655 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3656 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3657 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3659 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3660 error (static_assert is a declaration, and only statements can have labels).
3662 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3664 #ifndef __has_builtin
3665 # define __has_builtin(x) 0 /* not a clang style compiler */
3668 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3669 hint to a compiler about a statement of fact in a function call free
3670 expression, which allows the compiler to generate better machine code.
3671 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3672 the control path is unreachable. In a for loop, ASSUME can be used to hint
3673 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3674 intrinsic function, see its documents for more details.
3678 # if __has_builtin(__builtin_unreachable) \
3679 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3680 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3681 # elif defined(_MSC_VER)
3682 # define ASSUME(x) __assume(x)
3683 # elif defined(__ARMCC_VERSION) /* untested */
3684 # define ASSUME(x) __promise(x)
3686 /* a random compiler might define assert to its own special optimization token
3687 so pass it through to C lib as a last resort */
3688 # define ASSUME(x) assert(x)
3691 # define ASSUME(x) assert(x)
3694 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3695 # define NOT_REACHED
3696 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3697 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3698 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3700 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3703 /* Some unistd.h's give a prototype for pause() even though
3704 HAS_PAUSE ends up undefined. This causes the #define
3705 below to be rejected by the compiler. Sigh.
3710 #define Pause() sleep((32767<<16)+32767)
3714 # ifdef IOCPARM_MASK
3715 /* on BSDish systems we're safe */
3716 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3717 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3718 /* on Linux systems we're safe; except when we're not [perl #38223] */
3719 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3721 /* otherwise guess at what's safe */
3722 # define IOCPARM_LEN(x) 256
3726 #if defined(__CYGWIN__)
3728 * This symbol, if defined, indicates that the program should
3729 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3730 * that a file is in "binary" mode -- that is, that no translation
3731 * of bytes occurs on read or write operations.
3733 # define USEMYBINMODE /**/
3734 # include <io.h> /* for setmode() prototype */
3735 # define my_binmode(fp, iotype, mode) \
3736 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3740 void init_os_extras(void);
3743 #ifdef UNION_ANY_DEFINITION
3744 UNION_ANY_DEFINITION;
3762 void (*any_dptr) (void*);
3763 void (*any_dxptr) (pTHX_ void*);
3767 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3769 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3770 #define FILTER_DATA(idx) \
3771 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3772 #define FILTER_ISREADER(idx) \
3773 (PL_parser && PL_parser->rsfp_filters \
3774 && idx >= AvFILLp(PL_parser->rsfp_filters))
3775 #define PERL_FILTER_EXISTS(i) \
3776 (PL_parser && PL_parser->rsfp_filters \
3777 && (i) <= av_tindex(PL_parser->rsfp_filters))
3779 #if defined(_AIX) && !defined(_AIX43)
3780 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3781 /* We cannot include <crypt.h> to get the struct crypt_data
3782 * because of setkey prototype problems when threading */
3783 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3784 /* From OSF, Not needed in AIX
3792 #endif /* threading */
3795 #ifndef PERL_CALLCONV
3797 # define PERL_CALLCONV extern "C"
3799 # define PERL_CALLCONV
3802 #ifndef PERL_CALLCONV_NO_RET
3803 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3806 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3807 dont have a noreturn as a declaration specifier
3809 #ifndef PERL_STATIC_NO_RET
3810 # define PERL_STATIC_NO_RET STATIC
3812 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3813 builds that dont have a noreturn as a declaration specifier
3815 #ifndef PERL_STATIC_INLINE_NO_RET
3816 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3820 # include "iperlsys.h"
3823 #ifdef __LIBCATAMOUNT__
3824 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3826 #define FAKE_BIT_BUCKET
3829 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3830 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3831 * Configure, despite their names being similar to other defines like
3832 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3833 * hashes. Therefore to enable/disable the hash randomisation defines
3834 * use the Configure -Accflags=... instead. */
3835 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3836 # define USE_HASH_SEED
3842 /* macros to define bit-fields in structs. */
3843 #ifndef PERL_BITFIELD8
3844 # define PERL_BITFIELD8 U8
3846 #ifndef PERL_BITFIELD16
3847 # define PERL_BITFIELD16 U16
3849 #ifndef PERL_BITFIELD32
3850 # define PERL_BITFIELD32 U32
3860 #include "opnames.h"
3867 #include "warnings.h"
3870 /* these would be in doio.h if there was such a file */
3871 #define my_stat() my_stat_flags(SV_GMAGIC)
3872 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3874 /* defined in sv.c, but also used in [ach]v.c */
3877 #undef _XPVCV_COMMON
3881 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3883 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3885 /* These have to be predeclared, as they are used in proto.h which is #included
3886 * before their definitions in regcomp.h. */
3889 typedef struct regnode_charclass regnode_charclass;
3891 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3892 * used under /l matching */
3893 typedef struct regnode_charclass_posixl regnode_charclass_class;
3894 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3896 typedef struct regnode_ssc regnode_ssc;
3897 typedef struct RExC_state_t RExC_state_t;
3898 struct _reg_trie_data;
3902 struct ptr_tbl_ent {
3903 struct ptr_tbl_ent* next;
3909 struct ptr_tbl_ent** tbl_ary;
3912 struct ptr_tbl_arena *tbl_arena;
3913 struct ptr_tbl_ent *tbl_arena_next;
3914 struct ptr_tbl_ent *tbl_arena_end;
3917 #if defined(htonl) && !defined(HAS_HTONL)
3920 #if defined(htons) && !defined(HAS_HTONS)
3923 #if defined(ntohl) && !defined(HAS_NTOHL)
3926 #if defined(ntohs) && !defined(HAS_NTOHS)
3934 # if (BYTEORDER & 0xffff) == 0x4321
3935 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3936 re-order their values. However, to behave identically to the alternative
3937 implementations, they should truncate to the correct size. */
3938 # define ntohl(x) ((x)&0xFFFFFFFF)
3939 # define htonl(x) ntohl(x)
3940 # define ntohs(x) ((x)&0xFFFF)
3941 # define htons(x) ntohs(x)
3942 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3944 /* Note that we can't straight out declare our own htonl and htons because
3945 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3946 to avoid the overhead of initialising the socket subsystem, but the headers
3947 that *declare* the various functions are still seen. If we declare our own
3948 htonl etc they will clash with the declarations in the Win32 headers. */
3950 PERL_STATIC_INLINE U32
3951 my_swap32(const U32 x) {
3952 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3953 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3956 PERL_STATIC_INLINE U16
3957 my_swap16(const U16 x) {
3958 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3961 # define htonl(x) my_swap32(x)
3962 # define ntohl(x) my_swap32(x)
3963 # define ntohs(x) my_swap16(x)
3964 # define htons(x) my_swap16(x)
3966 # error "Unsupported byteorder"
3967 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3968 the error message. Please check the value of the macro BYTEORDER, as defined
3969 in config.h. The values of BYTEORDER we expect are
3971 big endian little endian
3972 32 bit 0x4321 0x1234
3973 64 bit 0x87654321 0x12345678
3975 If you have a system with a different byte order, please see
3976 pod/perlhack.pod for how to submit a patch to add supporting code.
3982 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3985 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3986 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3987 re-order their values. However, to behave identically to the alternative
3988 implementations, they should truncate to the correct size. */
3989 # define vtohl(x) ((x)&0xFFFFFFFF)
3990 # define vtohs(x) ((x)&0xFFFF)
3991 # define htovl(x) vtohl(x)
3992 # define htovs(x) vtohs(x)
3993 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3994 # define vtohl(x) ((((x)&0xFF)<<24) \
3996 +(((x)&0x0000FF00)<<8) \
3997 +(((x)&0x00FF0000)>>8) )
3998 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3999 # define htovl(x) vtohl(x)
4000 # define htovs(x) vtohs(x)
4002 # error "Unsupported byteorder"
4003 /* If you have need for current perl on PDP-11 or similar, and can help test
4004 that blead keeps working on a mixed-endian system, then see
4005 pod/perlhack.pod for how to submit patches to things working again. */
4008 /* *MAX Plus 1. A floating point value.
4009 Hopefully expressed in a way that dodgy floating point can't mess up.
4010 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4012 May find that some broken compiler will want the value cast to I32.
4013 [after the shift, as signed >> may not be as secure as unsigned >>]
4015 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4016 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4017 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4018 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4019 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4021 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4023 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4024 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4025 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4027 /* This may look like unnecessary jumping through hoops, but converting
4028 out of range floating point values to integers *is* undefined behaviour,
4029 and it is starting to bite.
4032 #define I_32(what) (cast_i32((NV)(what)))
4033 #define U_32(what) (cast_ulong((NV)(what)))
4034 #define I_V(what) (cast_iv((NV)(what)))
4035 #define U_V(what) (cast_uv((NV)(what)))
4037 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4038 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4039 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4040 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4041 : ((n) < U32_MAX_P1 ? (U32) (n) \
4042 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4043 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4044 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4045 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4046 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4047 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4048 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4051 #define U_S(what) ((U16)U_32(what))
4052 #define U_I(what) ((unsigned int)U_32(what))
4053 #define U_L(what) U_32(what)
4056 # ifndef Perl_signbit
4057 # define Perl_signbit signbit
4061 /* These do not care about the fractional part, only about the range. */
4062 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4063 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4065 /* Used with UV/IV arguments: */
4066 /* XXXX: need to speed it up */
4067 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4068 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4075 #if !(defined(WIN32) || defined(SYMBIAN))
4076 Uid_t getuid (void);
4077 Uid_t geteuid (void);
4078 Gid_t getgid (void);
4079 Gid_t getegid (void);
4083 #ifndef Perl_debug_log
4084 # define Perl_debug_log PerlIO_stderr()
4087 #ifndef Perl_error_log
4088 # define Perl_error_log (PL_stderrgv \
4089 && isGV(PL_stderrgv) \
4090 && GvIOp(PL_stderrgv) \
4091 && IoOFP(GvIOp(PL_stderrgv)) \
4092 ? IoOFP(GvIOp(PL_stderrgv)) \
4097 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4098 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4099 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4100 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4101 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4102 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4103 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4104 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4105 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4106 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4107 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4108 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4109 /* U is reserved for Unofficial, exploratory hacking */
4110 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4112 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4113 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4114 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4115 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4116 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4117 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4118 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4119 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4120 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4121 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4122 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4123 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4124 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4125 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4126 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4127 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4129 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4130 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4132 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4133 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4134 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4135 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4136 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4137 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4138 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4139 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4140 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4141 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4142 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4143 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4144 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4145 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4146 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4147 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4148 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4149 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4150 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4151 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4152 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4153 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4154 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4155 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4156 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4157 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4158 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4159 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4160 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4161 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4162 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4163 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4164 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4168 # define DEBUG_p_TEST DEBUG_p_TEST_
4169 # define DEBUG_s_TEST DEBUG_s_TEST_
4170 # define DEBUG_l_TEST DEBUG_l_TEST_
4171 # define DEBUG_t_TEST DEBUG_t_TEST_
4172 # define DEBUG_o_TEST DEBUG_o_TEST_
4173 # define DEBUG_c_TEST DEBUG_c_TEST_
4174 # define DEBUG_P_TEST DEBUG_P_TEST_
4175 # define DEBUG_m_TEST DEBUG_m_TEST_
4176 # define DEBUG_f_TEST DEBUG_f_TEST_
4177 # define DEBUG_r_TEST DEBUG_r_TEST_
4178 # define DEBUG_x_TEST DEBUG_x_TEST_
4179 # define DEBUG_u_TEST DEBUG_u_TEST_
4180 # define DEBUG_U_TEST DEBUG_U_TEST_
4181 # define DEBUG_X_TEST DEBUG_X_TEST_
4182 # define DEBUG_D_TEST DEBUG_D_TEST_
4183 # define DEBUG_S_TEST DEBUG_S_TEST_
4184 # define DEBUG_T_TEST DEBUG_T_TEST_
4185 # define DEBUG_R_TEST DEBUG_R_TEST_
4186 # define DEBUG_J_TEST DEBUG_J_TEST_
4187 # define DEBUG_v_TEST DEBUG_v_TEST_
4188 # define DEBUG_C_TEST DEBUG_C_TEST_
4189 # define DEBUG_A_TEST DEBUG_A_TEST_
4190 # define DEBUG_q_TEST DEBUG_q_TEST_
4191 # define DEBUG_M_TEST DEBUG_M_TEST_
4192 # define DEBUG_B_TEST DEBUG_B_TEST_
4193 # define DEBUG_L_TEST DEBUG_L_TEST_
4194 # define DEBUG_i_TEST DEBUG_i_TEST_
4195 # define DEBUG_y_TEST DEBUG_y_TEST_
4196 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4197 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4198 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4199 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4200 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4202 # define PERL_DEB(a) a
4203 # define PERL_DEB2(a,b) a
4204 # define PERL_DEBUG(a) if (PL_debug) a
4205 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4206 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4207 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4208 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4209 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4210 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4211 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4213 /* Temporarily turn off memory debugging in case the a
4214 * does memory allocation, either directly or indirectly. */
4215 # define DEBUG_m(a) \
4217 if (PERL_GET_INTERP) { \
4219 if (DEBUG_m_TEST) { \
4220 PL_debug &= ~DEBUG_m_FLAG; \
4222 PL_debug |= DEBUG_m_FLAG; \
4227 # define DEBUG__(t, a) \
4229 if (t) STMT_START {a;} STMT_END; \
4232 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4234 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4235 # ifdef PERL_EXT_RE_BUILD
4236 # define DEBUG_r(a) STMT_START {a;} STMT_END
4238 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4239 # endif /* PERL_EXT_RE_BUILD */
4241 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4242 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4243 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4244 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4245 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4246 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4247 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4248 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4249 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4250 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4252 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4253 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4254 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4255 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4256 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4257 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4258 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4259 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4260 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4261 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4262 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4263 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4265 #else /* ! DEBUGGING below */
4267 # define DEBUG_p_TEST (0)
4268 # define DEBUG_s_TEST (0)
4269 # define DEBUG_l_TEST (0)
4270 # define DEBUG_t_TEST (0)
4271 # define DEBUG_o_TEST (0)
4272 # define DEBUG_c_TEST (0)
4273 # define DEBUG_P_TEST (0)
4274 # define DEBUG_m_TEST (0)
4275 # define DEBUG_f_TEST (0)
4276 # define DEBUG_r_TEST (0)
4277 # define DEBUG_x_TEST (0)
4278 # define DEBUG_u_TEST (0)
4279 # define DEBUG_U_TEST (0)
4280 # define DEBUG_X_TEST (0)
4281 # define DEBUG_D_TEST (0)
4282 # define DEBUG_S_TEST (0)
4283 # define DEBUG_T_TEST (0)
4284 # define DEBUG_R_TEST (0)
4285 # define DEBUG_J_TEST (0)
4286 # define DEBUG_v_TEST (0)
4287 # define DEBUG_C_TEST (0)
4288 # define DEBUG_A_TEST (0)
4289 # define DEBUG_q_TEST (0)
4290 # define DEBUG_M_TEST (0)
4291 # define DEBUG_B_TEST (0)
4292 # define DEBUG_L_TEST (0)
4293 # define DEBUG_i_TEST (0)
4294 # define DEBUG_y_TEST (0)
4295 # define DEBUG_Xv_TEST (0)
4296 # define DEBUG_Uv_TEST (0)
4297 # define DEBUG_Pv_TEST (0)
4298 # define DEBUG_Lv_TEST (0)
4299 # define DEBUG_yv_TEST (0)
4301 # define PERL_DEB(a)
4302 # define PERL_DEB2(a,b) b
4303 # define PERL_DEBUG(a)
4331 # define DEBUG_Xv(a)
4332 # define DEBUG_Uv(a)
4333 # define DEBUG_Pv(a)
4334 # define DEBUG_Lv(a)
4335 # define DEBUG_yv(a)
4336 #endif /* DEBUGGING */
4339 #define DEBUG_SCOPE(where) \
4341 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4342 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4343 __FILE__, __LINE__));
4345 /* Keep the old croak based assert for those who want it, and as a fallback if
4346 the platform is so heretically non-ANSI that it can't assert. */
4348 #define Perl_assert(what) PERL_DEB2( \
4349 ((what) ? ((void) 0) : \
4350 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4351 "\", line %d", STRINGIFY(what), __LINE__), \
4352 (void) 0)), ((void)0))
4354 /* assert() gets defined if DEBUGGING.
4355 * If no DEBUGGING, the <assert.h> has not been included. */
4357 # define assert(what) Perl_assert(what)
4360 # define assert_(what) assert(what),
4362 # define assert_(what)
4366 I32 (*uf_val)(pTHX_ IV, SV*);
4367 I32 (*uf_set)(pTHX_ IV, SV*);
4371 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4372 * XS code wanting to be backward compatible can do something
4373 * like the following:
4375 #ifndef PERL_MG_UFUNC
4376 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4379 static PERL_MG_UFUNC(foo_get, index, val)
4389 #ifndef PERL_MG_UFUNC
4390 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4395 /* isfinite and others are here rather than in math.h as C99 stipulates */
4400 # if !defined(WIN32) && !defined(VMS)
4402 char *crypt (const char*, const char*);
4404 # endif /* !WIN32 */
4407 char *getlogin (void);
4409 # endif /* !WIN32 */
4410 #endif /* !__cplusplus */
4412 /* Fixme on VMS. This needs to be a run-time, not build time options */
4413 /* Also rename() is affected by this */
4414 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4415 #define UNLINK unlnk
4416 I32 unlnk (pTHX_ const char*);
4418 #define UNLINK PerlLIO_unlink
4421 /* some versions of glibc are missing the setresuid() proto */
4422 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4423 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4425 /* some versions of glibc are missing the setresgid() proto */
4426 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4427 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4430 #ifndef HAS_SETREUID
4431 # ifdef HAS_SETRESUID
4432 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4433 # define HAS_SETREUID
4436 #ifndef HAS_SETREGID
4437 # ifdef HAS_SETRESGID
4438 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4439 # define HAS_SETREGID
4443 /* Sighandler_t defined in iperlsys.h */
4445 #ifdef HAS_SIGACTION
4446 typedef struct sigaction Sigsave_t;
4448 typedef Sighandler_t Sigsave_t;
4459 # define RUNOPS_DEFAULT Perl_runops_debug
4461 # define RUNOPS_DEFAULT Perl_runops_standard
4464 #if defined(USE_PERLIO)
4465 EXTERN_C void PerlIO_teardown(void);
4466 # ifdef USE_ITHREADS
4467 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4468 # define PERLIO_TERM \
4470 PerlIO_teardown(); \
4471 MUTEX_DESTROY(&PL_perlio_mutex);\
4474 # define PERLIO_INIT
4475 # define PERLIO_TERM PerlIO_teardown()
4478 # define PERLIO_INIT
4479 # define PERLIO_TERM
4483 # ifdef MUTEX_INIT_CALLS_MALLOC
4484 # define MALLOC_INIT \
4486 PL_malloc_mutex = NULL; \
4487 MUTEX_INIT(&PL_malloc_mutex); \
4489 # define MALLOC_TERM \
4491 perl_mutex tmp = PL_malloc_mutex; \
4492 PL_malloc_mutex = NULL; \
4493 MUTEX_DESTROY(&tmp); \
4496 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4497 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4500 # define MALLOC_INIT
4501 # define MALLOC_TERM
4504 #if defined(PERL_IMPLICIT_CONTEXT)
4506 struct perl_memory_debug_header;
4507 struct perl_memory_debug_header {
4509 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4512 struct perl_memory_debug_header *prev;
4513 struct perl_memory_debug_header *next;
4514 # ifdef PERL_DEBUG_READONLY_COW
4519 #elif defined(PERL_DEBUG_READONLY_COW)
4521 struct perl_memory_debug_header;
4522 struct perl_memory_debug_header {
4528 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4530 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4531 (sizeof(struct perl_memory_debug_header) + \
4532 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4533 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4536 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4539 #ifdef PERL_TRACK_MEMPOOL
4540 # ifdef PERL_DEBUG_READONLY_COW
4541 # define INIT_TRACK_MEMPOOL(header, interp) \
4543 (header).interpreter = (interp); \
4544 (header).prev = (header).next = &(header); \
4545 (header).readonly = 0; \
4548 # define INIT_TRACK_MEMPOOL(header, interp) \
4550 (header).interpreter = (interp); \
4551 (header).prev = (header).next = &(header); \
4555 # define INIT_TRACK_MEMPOOL(header, interp)
4558 #ifdef I_MALLOCMALLOC
4559 /* Needed for malloc_size(), malloc_good_size() on some systems */
4560 # include <malloc/malloc.h>
4564 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4566 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4567 # ifdef PERL_TRACK_MEMPOOL
4568 # define Perl_safesysmalloc_size(where) \
4569 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4571 # define Perl_safesysmalloc_size(where) malloc_size(where)
4574 # ifdef HAS_MALLOC_GOOD_SIZE
4575 # ifdef PERL_TRACK_MEMPOOL
4576 # define Perl_malloc_good_size(how_much) \
4577 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4579 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4582 /* Having this as the identity operation makes some code simpler. */
4583 # define Perl_malloc_good_size(how_much) (how_much)
4587 typedef int (*runops_proc_t)(pTHX);
4588 typedef void (*share_proc_t) (pTHX_ SV *sv);
4589 typedef int (*thrhook_proc_t) (pTHX);
4590 typedef OP* (*PPADDR_t[]) (pTHX);
4591 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4592 typedef void (*despatch_signals_proc_t) (pTHX);
4594 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4595 # include <crt_externs.h> /* for the env array */
4596 # define environ (*_NSGetEnviron())
4597 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4598 /* VMS and some other platforms don't use the environ array */
4599 EXTERN_C char **environ; /* environment variables supplied via exec */
4602 #define PERL_PATCHLEVEL_H_IMPLICIT
4603 #include "patchlevel.h"
4604 #undef PERL_PATCHLEVEL_H_IMPLICIT
4606 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4607 STRINGIFY(PERL_VERSION) "." \
4608 STRINGIFY(PERL_SUBVERSION)
4610 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4611 STRINGIFY(PERL_API_VERSION) "." \
4612 STRINGIFY(PERL_API_SUBVERSION)
4616 /* handy constants */
4617 EXTCONST char PL_warn_uninit[]
4618 INIT("Use of uninitialized value%s%s%s");
4619 EXTCONST char PL_warn_uninit_sv[]
4620 INIT("Use of uninitialized value%" SVf "%s%s");
4621 EXTCONST char PL_warn_nosemi[]
4622 INIT("Semicolon seems to be missing");
4623 EXTCONST char PL_warn_reserved[]
4624 INIT("Unquoted string \"%s\" may clash with future reserved word");
4625 EXTCONST char PL_warn_nl[]
4626 INIT("Unsuccessful %s on filename containing newline");
4627 EXTCONST char PL_no_wrongref[]
4628 INIT("Can't use %s ref as %s ref");
4629 /* The core no longer needs this here. If you require the string constant,
4630 please inline a copy into your own code. */
4631 EXTCONST char PL_no_symref[] __attribute__deprecated__
4632 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4633 EXTCONST char PL_no_symref_sv[]
4634 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4636 EXTCONST char PL_no_usym[]
4637 INIT("Can't use an undefined value as %s reference");
4638 EXTCONST char PL_no_aelem[]
4639 INIT("Modification of non-creatable array value attempted, subscript %d");
4640 EXTCONST char PL_no_helem_sv[]
4641 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4642 EXTCONST char PL_no_modify[]
4643 INIT("Modification of a read-only value attempted");
4644 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4645 INIT("Out of memory!\n");
4646 EXTCONST char PL_no_security[]
4647 INIT("Insecure dependency in %s%s");
4648 EXTCONST char PL_no_sock_func[]
4649 INIT("Unsupported socket function \"%s\" called");
4650 EXTCONST char PL_no_dir_func[]
4651 INIT("Unsupported directory function \"%s\" called");
4652 EXTCONST char PL_no_func[]
4653 INIT("The %s function is unimplemented");
4654 EXTCONST char PL_no_myglob[]
4655 INIT("\"%s\" %s %s can't be in a package");
4656 EXTCONST char PL_no_localize_ref[]
4657 INIT("Can't localize through a reference");
4658 EXTCONST char PL_memory_wrap[]
4659 INIT("panic: memory wrap");
4660 EXTCONST char PL_extended_cp_format[]
4661 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4662 " and so is not portable");
4663 EXTCONST char PL_Yes[]
4665 EXTCONST char PL_No[]
4667 EXTCONST char PL_Zero[]
4669 EXTCONST char PL_hexdigit[]
4670 INIT("0123456789abcdef0123456789ABCDEF");
4672 EXTCONST STRLEN PL_WARN_ALL
4674 EXTCONST STRLEN PL_WARN_NONE
4677 /* This is constant on most architectures, a global on OS/2 */
4679 EXTCONST char PL_sh_path[]
4680 INIT(SH_PATH); /* full path of shell */
4684 EXTCONST char PL_cshname[]
4686 # define PL_cshlen (sizeof(CSH "") - 1)
4689 /* These are baked at compile time into any shared perl library.
4690 In future releases this will allow us in main() to sanity test the
4691 library we're linking against. */
4693 EXTCONST U8 PL_revision
4694 INIT(PERL_REVISION);
4695 EXTCONST U8 PL_version
4697 EXTCONST U8 PL_subversion
4698 INIT(PERL_SUBVERSION);
4700 EXTCONST char PL_uuemap[65]
4701 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4703 /* a special string address whose value is "isa", but which perl knows
4704 * to treat as if it were really "DOES" when printing the method name in
4705 * the "Can't call method '%s'" error message */
4706 EXTCONST char PL_isa_DOES[]
4710 EXTCONST char PL_uudmap[256] =
4712 # include "uuudmap.h"
4714 # include "uudmap.h"
4717 EXTCONST char PL_bitcount[256] =
4719 # include "ubitcount.h"
4721 # include "bitcount.h"
4724 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4725 EXTCONST int PL_sig_num[] = { SIG_NUM };
4727 EXTCONST char PL_uudmap[256];
4728 EXTCONST char PL_bitcount[256];
4729 EXTCONST char* const PL_sig_name[];
4730 EXTCONST int PL_sig_num[];
4733 /* fast conversion and case folding tables. The folding tables complement the
4734 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4735 * folds such as outside the range or to multiple characters. */
4740 /* The EBCDIC fold table depends on the code page, and hence is found in
4743 EXTCONST unsigned char PL_fold[] = {
4744 0, 1, 2, 3, 4, 5, 6, 7,
4745 8, 9, 10, 11, 12, 13, 14, 15,
4746 16, 17, 18, 19, 20, 21, 22, 23,
4747 24, 25, 26, 27, 28, 29, 30, 31,
4748 32, 33, 34, 35, 36, 37, 38, 39,
4749 40, 41, 42, 43, 44, 45, 46, 47,
4750 48, 49, 50, 51, 52, 53, 54, 55,
4751 56, 57, 58, 59, 60, 61, 62, 63,
4752 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4753 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4754 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4755 'x', 'y', 'z', 91, 92, 93, 94, 95,
4756 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4757 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4758 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4759 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4760 128, 129, 130, 131, 132, 133, 134, 135,
4761 136, 137, 138, 139, 140, 141, 142, 143,
4762 144, 145, 146, 147, 148, 149, 150, 151,
4763 152, 153, 154, 155, 156, 157, 158, 159,
4764 160, 161, 162, 163, 164, 165, 166, 167,
4765 168, 169, 170, 171, 172, 173, 174, 175,
4766 176, 177, 178, 179, 180, 181, 182, 183,
4767 184, 185, 186, 187, 188, 189, 190, 191,
4768 192, 193, 194, 195, 196, 197, 198, 199,
4769 200, 201, 202, 203, 204, 205, 206, 207,
4770 208, 209, 210, 211, 212, 213, 214, 215,
4771 216, 217, 218, 219, 220, 221, 222, 223,
4772 224, 225, 226, 227, 228, 229, 230, 231,
4773 232, 233, 234, 235, 236, 237, 238, 239,
4774 240, 241, 242, 243, 244, 245, 246, 247,
4775 248, 249, 250, 251, 252, 253, 254, 255
4777 EXTCONST unsigned char PL_fold_latin1[] = {
4778 /* Full latin1 complement folding, except for three problematic code points:
4779 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4780 * fold complements outside the Latin1 range, so can't match something
4781 * that isn't in utf8.
4782 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4783 * not one, so can't be represented in this table.
4785 * All have to be specially handled */
4786 0, 1, 2, 3, 4, 5, 6, 7,
4787 8, 9, 10, 11, 12, 13, 14, 15,
4788 16, 17, 18, 19, 20, 21, 22, 23,
4789 24, 25, 26, 27, 28, 29, 30, 31,
4790 32, 33, 34, 35, 36, 37, 38, 39,
4791 40, 41, 42, 43, 44, 45, 46, 47,
4792 48, 49, 50, 51, 52, 53, 54, 55,
4793 56, 57, 58, 59, 60, 61, 62, 63,
4794 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4795 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4796 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4797 'x', 'y', 'z', 91, 92, 93, 94, 95,
4798 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4799 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4800 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4801 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4802 128, 129, 130, 131, 132, 133, 134, 135,
4803 136, 137, 138, 139, 140, 141, 142, 143,
4804 144, 145, 146, 147, 148, 149, 150, 151,
4805 152, 153, 154, 155, 156, 157, 158, 159,
4806 160, 161, 162, 163, 164, 165, 166, 167,
4807 168, 169, 170, 171, 172, 173, 174, 175,
4808 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4809 184, 185, 186, 187, 188, 189, 190, 191,
4810 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4811 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4812 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4813 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4814 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4815 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4816 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4817 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4818 255 /* y with diaeresis */
4821 /* If these tables are accessed through ebcdic, the access will be converted to
4823 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4824 0, 1, 2, 3, 4, 5, 6, 7,
4825 8, 9, 10, 11, 12, 13, 14, 15,
4826 16, 17, 18, 19, 20, 21, 22, 23,
4827 24, 25, 26, 27, 28, 29, 30, 31,
4828 32, 33, 34, 35, 36, 37, 38, 39,
4829 40, 41, 42, 43, 44, 45, 46, 47,
4830 48, 49, 50, 51, 52, 53, 54, 55,
4831 56, 57, 58, 59, 60, 61, 62, 63,
4832 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4833 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4834 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4835 'x', 'y', 'z', 91, 92, 93, 94, 95,
4836 96, 97, 98, 99, 100, 101, 102, 103,
4837 104, 105, 106, 107, 108, 109, 110, 111,
4838 112, 113, 114, 115, 116, 117, 118, 119,
4839 120, 121, 122, 123, 124, 125, 126, 127,
4840 128, 129, 130, 131, 132, 133, 134, 135,
4841 136, 137, 138, 139, 140, 141, 142, 143,
4842 144, 145, 146, 147, 148, 149, 150, 151,
4843 152, 153, 154, 155, 156, 157, 158, 159,
4844 160, 161, 162, 163, 164, 165, 166, 167,
4845 168, 169, 170, 171, 172, 173, 174, 175,
4846 176, 177, 178, 179, 180, 181, 182, 183,
4847 184, 185, 186, 187, 188, 189, 190, 191,
4848 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4849 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4850 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4851 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4852 224, 225, 226, 227, 228, 229, 230, 231,
4853 232, 233, 234, 235, 236, 237, 238, 239,
4854 240, 241, 242, 243, 244, 245, 246, 247,
4855 248, 249, 250, 251, 252, 253, 254, 255
4858 /* upper and title case of latin1 characters, modified so that the three tricky
4859 * ones are mapped to 255 (which is one of the three) */
4860 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4861 0, 1, 2, 3, 4, 5, 6, 7,
4862 8, 9, 10, 11, 12, 13, 14, 15,
4863 16, 17, 18, 19, 20, 21, 22, 23,
4864 24, 25, 26, 27, 28, 29, 30, 31,
4865 32, 33, 34, 35, 36, 37, 38, 39,
4866 40, 41, 42, 43, 44, 45, 46, 47,
4867 48, 49, 50, 51, 52, 53, 54, 55,
4868 56, 57, 58, 59, 60, 61, 62, 63,
4869 64, 65, 66, 67, 68, 69, 70, 71,
4870 72, 73, 74, 75, 76, 77, 78, 79,
4871 80, 81, 82, 83, 84, 85, 86, 87,
4872 88, 89, 90, 91, 92, 93, 94, 95,
4873 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4874 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4875 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4876 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4877 128, 129, 130, 131, 132, 133, 134, 135,
4878 136, 137, 138, 139, 140, 141, 142, 143,
4879 144, 145, 146, 147, 148, 149, 150, 151,
4880 152, 153, 154, 155, 156, 157, 158, 159,
4881 160, 161, 162, 163, 164, 165, 166, 167,
4882 168, 169, 170, 171, 172, 173, 174, 175,
4883 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4884 184, 185, 186, 187, 188, 189, 190, 191,
4885 192, 193, 194, 195, 196, 197, 198, 199,
4886 200, 201, 202, 203, 204, 205, 206, 207,
4887 208, 209, 210, 211, 212, 213, 214, 215,
4888 216, 217, 218, 219, 220, 221, 222,
4889 #if UNICODE_MAJOR_VERSION > 2 \
4890 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4891 && UNICODE_DOT_DOT_VERSION >= 8)
4893 #else /* uc(sharp s) is 'sharp s' itself in early unicode */
4896 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4897 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4898 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4899 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4901 #endif /* !EBCDIC, but still in DOINIT */
4902 #else /* ! DOINIT */
4904 EXTCONST unsigned char PL_fold[];
4905 EXTCONST unsigned char PL_fold_latin1[];
4906 EXTCONST unsigned char PL_mod_latin1_uc[];
4907 EXTCONST unsigned char PL_latin1_lc[];
4911 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4913 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */
4914 0, 1, 2, 3, 4, 5, 6, 7,
4915 8, 9, 10, 11, 12, 13, 14, 15,
4916 16, 17, 18, 19, 20, 21, 22, 23,
4917 24, 25, 26, 27, 28, 29, 30, 31,
4918 32, 33, 34, 35, 36, 37, 38, 39,
4919 40, 41, 42, 43, 44, 45, 46, 47,
4920 48, 49, 50, 51, 52, 53, 54, 55,
4921 56, 57, 58, 59, 60, 61, 62, 63,
4922 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4923 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4924 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4925 'x', 'y', 'z', 91, 92, 93, 94, 95,
4926 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4927 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4928 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4929 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4930 128, 129, 130, 131, 132, 133, 134, 135,
4931 136, 137, 138, 139, 140, 141, 142, 143,
4932 144, 145, 146, 147, 148, 149, 150, 151,
4933 152, 153, 154, 155, 156, 157, 158, 159,
4934 160, 161, 162, 163, 164, 165, 166, 167,
4935 168, 169, 170, 171, 172, 173, 174, 175,
4936 176, 177, 178, 179, 180, 181, 182, 183,
4937 184, 185, 186, 187, 188, 189, 190, 191,
4938 192, 193, 194, 195, 196, 197, 198, 199,
4939 200, 201, 202, 203, 204, 205, 206, 207,
4940 208, 209, 210, 211, 212, 213, 214, 215,
4941 216, 217, 218, 219, 220, 221, 222, 223,
4942 224, 225, 226, 227, 228, 229, 230, 231,
4943 232, 233, 234, 235, 236, 237, 238, 239,
4944 240, 241, 242, 243, 244, 245, 246, 247,
4945 248, 249, 250, 251, 252, 253, 254, 255
4948 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */
4950 #endif /* !PERL_GLOBAL_STRUCT */
4954 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
4955 1, 2, 84, 151, 154, 155, 156, 157,
4956 165, 246, 250, 3, 158, 7, 18, 29,
4957 40, 51, 62, 73, 85, 96, 107, 118,
4958 129, 140, 147, 148, 149, 150, 152, 153,
4959 255, 6, 8, 9, 10, 11, 12, 13,
4960 14, 15, 24, 25, 26, 27, 28, 226,
4961 29, 30, 31, 32, 33, 43, 44, 45,
4962 46, 47, 48, 49, 50, 76, 77, 78,
4963 79, 80, 81, 82, 83, 84, 85, 86,
4964 87, 94, 95, 234, 181, 233, 187, 190,
4965 180, 96, 97, 98, 99, 100, 101, 102,
4966 104, 112, 182, 174, 236, 232, 229, 103,
4967 228, 226, 114, 115, 116, 117, 118, 119,
4968 120, 121, 122, 235, 176, 230, 194, 162,
4969 130, 131, 132, 133, 134, 135, 136, 137,
4970 138, 139, 201, 205, 163, 217, 220, 224,
4971 5, 248, 227, 244, 242, 255, 241, 231,
4972 240, 253, 16, 197, 19, 20, 21, 187,
4973 23, 169, 210, 245, 237, 249, 247, 239,
4974 168, 252, 34, 196, 36, 37, 38, 39,
4975 41, 42, 251, 254, 238, 223, 221, 213,
4976 225, 177, 52, 53, 54, 55, 56, 57,
4977 58, 59, 60, 61, 63, 64, 65, 66,
4978 67, 68, 69, 70, 71, 72, 74, 75,
4979 205, 208, 186, 202, 200, 218, 198, 179,
4980 178, 214, 88, 89, 90, 91, 92, 93,
4981 217, 166, 170, 207, 199, 209, 206, 204,
4982 160, 212, 105, 106, 108, 109, 110, 111,
4983 203, 113, 216, 215, 192, 175, 193, 243,
4984 172, 161, 123, 124, 125, 126, 127, 128,
4985 222, 219, 211, 195, 188, 193, 185, 184,
4986 191, 183, 141, 142, 143, 144, 145, 146
4988 #else /* ascii rather than ebcdic */
4989 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
4990 1, 2, 84, 151, 154, 155, 156, 157,
4991 165, 246, 250, 3, 158, 7, 18, 29,
4992 40, 51, 62, 73, 85, 96, 107, 118,
4993 129, 140, 147, 148, 149, 150, 152, 153,
4994 255, 182, 224, 205, 174, 176, 180, 217,
4995 233, 232, 236, 187, 235, 228, 234, 226,
4996 222, 219, 211, 195, 188, 193, 185, 184,
4997 191, 183, 201, 229, 181, 220, 194, 162,
4998 163, 208, 186, 202, 200, 218, 198, 179,
4999 178, 214, 166, 170, 207, 199, 209, 206,
5000 204, 160, 212, 216, 215, 192, 175, 173,
5001 243, 172, 161, 190, 203, 189, 164, 230,
5002 167, 248, 227, 244, 242, 255, 241, 231,
5003 240, 253, 169, 210, 245, 237, 249, 247,
5004 239, 168, 252, 251, 254, 238, 223, 221,
5005 213, 225, 177, 197, 171, 196, 159, 4,
5006 5, 6, 8, 9, 10, 11, 12, 13,
5007 14, 15, 16, 17, 19, 20, 21, 22,
5008 23, 24, 25, 26, 27, 28, 30, 31,
5009 32, 33, 34, 35, 36, 37, 38, 39,
5010 41, 42, 43, 44, 45, 46, 47, 48,
5011 49, 50, 52, 53, 54, 55, 56, 57,
5012 58, 59, 60, 61, 63, 64, 65, 66,
5013 67, 68, 69, 70, 71, 72, 74, 75,
5014 76, 77, 78, 79, 80, 81, 82, 83,
5015 86, 87, 88, 89, 90, 91, 92, 93,
5016 94, 95, 97, 98, 99, 100, 101, 102,
5017 103, 104, 105, 106, 108, 109, 110, 111,
5018 112, 113, 114, 115, 116, 117, 119, 120,
5019 121, 122, 123, 124, 125, 126, 127, 128,
5020 130, 131, 132, 133, 134, 135, 136, 137,
5021 138, 139, 141, 142, 143, 144, 145, 146
5025 EXTCONST unsigned char PL_freq[];
5028 /* Although only used for debugging, these constants must be available in
5029 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5030 * which has DEBUGGING enabled always */
5032 EXTCONST char* const PL_block_type[] = {
5048 EXTCONST char* PL_block_type[];
5051 /* These are all the compile time options that affect binary compatibility.
5052 Other compile time options that are binary compatible are in perl.c
5053 (in S_Internals_V()). Both are combined for the output of perl -V
5054 However, this string will be embedded in any shared perl library, which will
5055 allow us add a comparison check in perlmain.c in the near future. */
5057 EXTCONST char PL_bincompat_options[] =
5058 # ifdef DEBUG_LEAKING_SCALARS
5059 " DEBUG_LEAKING_SCALARS"
5061 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5062 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5070 # ifdef HAVE_INTERP_INTERN
5071 " HAVE_INTERP_INTERN"
5073 # ifdef MULTIPLICITY
5079 # ifdef PERLIO_LAYERS
5082 # ifdef PERL_DEBUG_READONLY_COW
5083 " PERL_DEBUG_READONLY_COW"
5085 # ifdef PERL_DEBUG_READONLY_OPS
5086 " PERL_DEBUG_READONLY_OPS"
5088 # ifdef PERL_GLOBAL_STRUCT
5089 " PERL_GLOBAL_STRUCT"
5091 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
5092 " PERL_GLOBAL_STRUCT_PRIVATE"
5094 # ifdef PERL_IMPLICIT_CONTEXT
5095 " PERL_IMPLICIT_CONTEXT"
5097 # ifdef PERL_IMPLICIT_SYS
5098 " PERL_IMPLICIT_SYS"
5103 # ifdef PERL_NEED_APPCTX
5106 # ifdef PERL_NEED_TIMESBASE
5107 " PERL_NEED_TIMESBASE"
5112 # ifdef PERL_SAWAMPERSAND
5113 " PERL_SAWAMPERSAND"
5115 # ifdef PERL_TRACK_MEMPOOL
5116 " PERL_TRACK_MEMPOOL"
5118 # ifdef PERL_USES_PL_PIDSTATUS
5119 " PERL_USES_PL_PIDSTATUS"
5121 # ifdef USE_64_BIT_ALL
5124 # ifdef USE_64_BIT_INT
5130 # ifdef USE_ITHREADS
5133 # ifdef USE_LARGE_FILES
5136 # ifdef USE_LOCALE_COLLATE
5137 " USE_LOCALE_COLLATE"
5139 # ifdef USE_LOCALE_NUMERIC
5140 " USE_LOCALE_NUMERIC"
5142 # ifdef USE_LOCALE_TIME
5145 # ifdef USE_LONG_DOUBLE
5151 # ifdef USE_QUADMATH
5154 # ifdef USE_REENTRANT_API
5155 " USE_REENTRANT_API"
5160 # ifdef VMS_DO_SOCKETS
5163 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5164 " VMS_SHORTEN_LONG_SYMBOLS"
5166 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5167 " VMS_SYMBOL_CASE_AS_IS"
5171 EXTCONST char PL_bincompat_options[];
5174 #ifndef PERL_SET_PHASE
5175 # define PERL_SET_PHASE(new_phase) \
5176 PERL_DTRACE_PROBE_PHASE(new_phase); \
5177 PL_phase = new_phase;
5180 /* The interpreter phases. If these ever change, PL_phase_names right below will
5181 * need to be updated accordingly. */
5183 PERL_PHASE_CONSTRUCT = 0,
5184 PERL_PHASE_START = 1,
5185 PERL_PHASE_CHECK = 2,
5186 PERL_PHASE_INIT = 3,
5189 PERL_PHASE_DESTRUCT = 6
5193 EXTCONST char *const PL_phase_names[] = {
5203 EXTCONST char *const PL_phase_names[];
5207 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5208 * instead of using the newer PL_phase, which provides everything PL_dirty
5209 * provided, and more. */
5210 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5212 # define PL_amagic_generation PL_na
5213 # define PL_encoding ((SV *)NULL)
5214 #endif /* !PERL_CORE */
5216 #define PL_hints PL_compiling.cop_hints
5217 #define PL_maxo MAXO
5221 /*****************************************************************************/
5222 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5223 /*****************************************************************************/
5224 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5227 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5236 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5244 XATTRBLOCK, /* next token should be an attribute or block */
5245 XATTRTERM, /* next token should be an attribute, or block in a term */
5249 XTERMORDORDOR /* evil hack */
5250 /* update exp_name[] in toke.c if adding to this enum */
5253 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5255 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5256 special and there is no need for HINT_PRIVATE_MASK for COPs
5257 However, bitops store HINT_INTEGER in their op_private.
5259 NOTE: The typical module using these has the bit value hard-coded, so don't
5260 blindly change the values of these.
5262 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5263 is for "use locale 'FOO'" which excludes some categories. It requires going
5264 to %^H to find out which are in and which are out. This could be extended
5265 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5267 #define HINT_INTEGER 0x00000001 /* integer pragma */
5268 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5269 #define HINT_LOCALE 0x00000004 /* locale pragma */
5270 #define HINT_BYTES 0x00000008 /* bytes pragma */
5271 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5273 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5274 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5275 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5277 #define HINT_BLOCK_SCOPE 0x00000100
5278 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5279 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5280 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5282 /* The HINT_NEW_* constants are used by the overload pragma */
5283 #define HINT_NEW_INTEGER 0x00001000
5284 #define HINT_NEW_FLOAT 0x00002000
5285 #define HINT_NEW_BINARY 0x00004000
5286 #define HINT_NEW_STRING 0x00008000
5287 #define HINT_NEW_RE 0x00010000
5288 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5289 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5290 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5292 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5293 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5295 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5296 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5298 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5300 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5302 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5304 /* Note: Used for HINT_M_VMSISH_*,
5305 currently defined by vms/vmsish.h:
5310 /* The following are stored in $^H{sort}, not in PL_hints */
5311 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5312 #define HINT_SORT_UNSTABLE 0x00000200
5314 /* flags for PL_sawampersand */
5316 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5317 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5318 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5320 #ifndef PERL_SAWAMPERSAND
5321 # define PL_sawampersand \
5322 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5325 /* Used for debugvar magic */
5326 #define DBVARMG_SINGLE 0
5327 #define DBVARMG_TRACE 1
5328 #define DBVARMG_SIGNAL 2
5329 #define DBVARMG_COUNT 3
5331 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5332 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5333 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5335 /* Various states of the input record separator SV (rs) */
5336 #define RsSNARF(sv) (! SvOK(sv))
5337 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5338 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5339 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5341 /* A struct for keeping various DEBUGGING related stuff,
5342 * neatly packed. Currently only scratch variables for
5343 * constructing debug output are included. Needed always,
5344 * not just when DEBUGGING, though, because of the re extension. c*/
5345 struct perl_debug_pad {
5349 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5350 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5351 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5354 /* Enable variables which are pointers to functions */
5355 typedef void (*peep_t)(pTHX_ OP* o);
5356 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5357 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5358 char* strend, char* strbeg, I32 minend,
5359 SV* screamer, void* data, U32 flags);
5360 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5361 char *strpos, char *strend,
5363 re_scream_pos_data *d);
5364 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5365 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5366 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5367 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5369 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5370 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5371 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5372 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5373 typedef void (*XSINIT_t) (pTHX);
5374 typedef void (*ATEXIT_t) (pTHX_ void*);
5375 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5377 typedef OP* (*Perl_ppaddr_t)(pTHX);
5378 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5379 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5380 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5381 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5383 typedef void(*globhook_t)(pTHX);
5385 #define KEYWORD_PLUGIN_DECLINE 0
5386 #define KEYWORD_PLUGIN_STMT 1
5387 #define KEYWORD_PLUGIN_EXPR 2
5389 /* Interpreter exitlist entry */
5390 typedef struct exitlistentry {
5391 void (*fn) (pTHX_ void*);
5393 } PerlExitListEntry;
5395 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5396 /* These have to be before perlvars.h */
5397 #if !defined(HAS_SIGACTION) && defined(VMS)
5398 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5400 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5401 #if defined(KILL_BY_SIGPRC)
5402 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5405 #if !defined(MULTIPLICITY)
5407 struct interpreter {
5413 /* If we have multiple interpreters define a struct
5414 holding variables which must be per-interpreter
5415 If we don't have threads anything that would have
5416 be per-thread is per-interpreter.
5419 /* Set up PERLVAR macros for populating structs */
5420 # define PERLVAR(prefix,var,type) type prefix##var;
5422 /* 'var' is an array of length 'n' */
5423 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5425 /* initialize 'var' to init' */
5426 # define PERLVARI(prefix,var,type,init) type prefix##var;
5428 /* like PERLVARI, but make 'var' a const */
5429 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5431 struct interpreter {
5432 # include "intrpvar.h"
5435 EXTCONST U16 PL_interp_size
5436 INIT(sizeof(struct interpreter));
5438 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5439 STRUCT_OFFSET(struct interpreter, member) + \
5440 sizeof(((struct interpreter*)0)->member)
5442 /* This will be useful for subsequent releases, because this has to be the
5443 same in your libperl as in main(), else you have a mismatch and must abort.
5445 EXTCONST U16 PL_interp_size_5_18_0
5446 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5449 # ifdef PERL_GLOBAL_STRUCT
5450 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5451 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5454 # include "perlvars.h"
5457 EXTCONST U16 PL_global_struct_size
5458 INIT(sizeof(struct perl_vars));
5461 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5462 EXT struct perl_vars PL_Vars;
5463 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5464 # undef PERL_GET_VARS
5465 # define PERL_GET_VARS() PL_VarsPtr
5466 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5467 # else /* PERL_CORE */
5468 # if !defined(__GNUC__) || !defined(WIN32)
5471 struct perl_vars *PL_VarsPtr;
5472 # define PL_Vars (*((PL_VarsPtr) \
5473 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5474 # endif /* PERL_CORE */
5475 # endif /* PERL_GLOBAL_STRUCT */
5477 /* Done with PERLVAR macros for now ... */
5483 #endif /* MULTIPLICITY */
5485 struct tempsym; /* defined in pp_pack.c */
5492 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5493 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5496 # include "malloc_ctl.h"
5500 * This provides a layer of functions and macros to ensure extensions will
5501 * get to use the same RTL functions as the core.
5504 # include "win32iop.h"
5510 /* this has structure inits, so it cannot be included before here */
5513 /* The following must follow proto.h as #defines mess up syntax */
5515 #if !defined(PERL_FOR_X2P)
5516 # include "embedvar.h"
5519 /* Now include all the 'global' variables
5520 * If we don't have threads or multiple interpreters
5521 * these include variables that would have been their struct-s
5524 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5525 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5526 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5527 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5529 #if !defined(MULTIPLICITY)
5531 # include "intrpvar.h"
5533 # define PL_sv_yes (PL_sv_immortals[0])
5534 # define PL_sv_undef (PL_sv_immortals[1])
5535 # define PL_sv_no (PL_sv_immortals[2])
5536 # define PL_sv_zero (PL_sv_immortals[3])
5540 /* All core uses now exterminated. Ensure no zombies can return: */
5544 /* Now all the config stuff is setup we can include embed.h
5545 In particular, need the relevant *ish file included already, as it may
5546 define HAVE_INTERP_INTERN */
5549 #ifndef PERL_GLOBAL_STRUCT
5552 # include "perlvars.h"
5562 #if !defined(MULTIPLICITY)
5563 /* Set up PERLVAR macros for populating structs */
5564 # define PERLVAR(prefix,var,type) type prefix##var;
5565 /* 'var' is an array of length 'n' */
5566 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5567 /* initialize 'var' to init' */
5568 # define PERLVARI(prefix,var,type,init) type prefix##var;
5569 /* like PERLVARI, but make 'var' a const */
5570 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5572 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5573 struct PerlHandShakeInterpreter {
5574 # include "intrpvar.h"
5584 /* dummy variables that hold pointers to both runops functions, thus forcing
5585 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5587 EXTCONST runops_proc_t PL_runops_std
5588 INIT(Perl_runops_standard);
5589 EXTCONST runops_proc_t PL_runops_dbg
5590 INIT(Perl_runops_debug);
5592 #define EXT_MGVTBL EXTCONST MGVTBL
5594 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5595 #define PERL_MAGIC_VALUE_MAGIC 0x80
5596 #define PERL_MAGIC_VTABLE_MASK 0x3F
5597 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5598 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5599 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5600 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5602 #include "mg_vtable.h"
5605 EXTCONST U8 PL_magic_data[256] =
5607 # include "umg_data.h"
5609 # include "mg_data.h"
5613 EXTCONST U8 PL_magic_data[256];
5617 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5619 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5621 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5623 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5625 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5627 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5629 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5633 EXTCONST bool PL_valid_types_IVX[];
5634 EXTCONST bool PL_valid_types_NVX[];
5635 EXTCONST bool PL_valid_types_PVX[];
5636 EXTCONST bool PL_valid_types_RV[];
5637 EXTCONST bool PL_valid_types_IV_set[];
5638 EXTCONST bool PL_valid_types_NV_set[];
5642 /* In C99 we could use designated (named field) union initializers.
5643 * In C89 we need to initialize the member declared first.
5644 * In C++ we need extern C initializers.
5646 * With the U8_NV version you will want to have inner braces,
5647 * while with the NV_U8 use just the NV. */
5649 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5650 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5652 /* if these never got defined, they need defaults */
5653 #ifndef PERL_SET_CONTEXT
5654 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5657 #ifndef PERL_GET_CONTEXT
5658 # define PERL_GET_CONTEXT PERL_GET_INTERP
5661 #ifndef PERL_GET_THX
5662 # define PERL_GET_THX ((void*)NULL)
5665 #ifndef PERL_SET_THX
5666 # define PERL_SET_THX(t) NOOP
5671 /* The tables below are adapted from
5672 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5675 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5677 Permission is hereby granted, free of charge, to any person obtaining a copy of
5678 this software and associated documentation files (the "Software"), to deal in
5679 the Software without restriction, including without limitation the rights to
5680 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5681 of the Software, and to permit persons to whom the Software is furnished to do
5682 so, subject to the following conditions:
5684 The above copyright notice and this permission notice shall be included in all
5685 copies or substantial portions of the Software.
5687 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5688 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5689 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5690 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5691 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5692 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5698 # if 0 /* This is the original table given in
5699 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5700 static U8 utf8d_C9[] = {
5701 /* The first part of the table maps bytes to character classes that
5702 * to reduce the size of the transition table and create bitmasks. */
5703 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*/
5704 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*/
5705 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*/
5706 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*/
5707 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*/
5708 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*/
5709 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*/
5710 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*/
5712 /* The second part is a transition table that maps a combination
5713 * of a state of the automaton and a character class to a state. */
5714 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5715 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5716 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5717 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5718 12,36,12,12,12,12,12,12,12,12,12,12
5723 /* This is a version of the above table customized for Perl that doesn't
5724 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5725 * machines). The classes have been renumbered so that the patterns are more
5726 * evident in the table. The class numbers for start bytes are constrained so
5727 * that they can be used as a shift count for masking off the leading one bits.
5728 * It would make the code simpler if start byte FF could also be handled, but
5729 * doing so would mean adding nodes for each of continuation bytes 6-12
5730 * remaining, and two more nodes for overlong detection (a total of 9), and
5731 * there is room only for 4 more nodes unless we make the array U16 instead of
5736 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5738 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5739 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5740 * 88-8F 10 Not legal immediately after start bytes E0 F0
5741 * 90-9F 11 Not legal immediately after start byte E0
5753 * FE 17 (or 1 on 32-bit machines, since it overflows)
5757 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5758 /* The first part of the table maps bytes to character classes to reduce
5759 * the size of the transition table and create bitmasks. */
5760 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5761 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5762 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5763 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5764 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5765 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5766 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5767 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5768 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5769 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5770 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5771 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5772 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5773 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5774 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5775 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5783 /* The second part is a transition table that maps a combination
5784 * of a state of the automaton and a character class to a new state, called a
5785 * node. The nodes are:
5786 * N0 The initial state, and final accepting one.
5787 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5788 * immediately when the start byte indicates a two-byte sequence
5789 * N2 Any two continuation bytes left.
5790 * N3 Any three continuation bytes left.
5791 * N4 Any four continuation bytes left.
5792 * N5 Any five continuation bytes left.
5793 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5794 * the other continuations transition to N1
5795 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5796 * the other continuations transition to N2
5797 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5798 * the other continuations transition to N3
5799 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5800 * the other continuations transition to N4
5801 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5802 * the other continuations transition to N5
5803 * 1 Reject. All transitions not mentioned above (except the single
5804 * byte ones (as they are always legal) are to this state.
5807 # define NUM_CLASSES 18
5809 # define N1 ((N0) + NUM_CLASSES)
5810 # define N2 ((N1) + NUM_CLASSES)
5811 # define N3 ((N2) + NUM_CLASSES)
5812 # define N4 ((N3) + NUM_CLASSES)
5813 # define N5 ((N4) + NUM_CLASSES)
5814 # define N6 ((N5) + NUM_CLASSES)
5815 # define N7 ((N6) + NUM_CLASSES)
5816 # define N8 ((N7) + NUM_CLASSES)
5817 # define N9 ((N8) + NUM_CLASSES)
5818 # define N10 ((N9) + NUM_CLASSES)
5820 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5821 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5822 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5823 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5824 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5825 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5826 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5828 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5829 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5830 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5831 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5832 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5835 /* And below is a version of the above table that accepts only strict UTF-8.
5836 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5837 * passes this dfa, it will be for a well-formed, non-problematic code point
5838 * that can be returned immediately.
5840 * The "Implementation details" portion of
5841 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5842 * the first portion of the table maps each possible byte into a character
5843 * class. And that the classes for those bytes which are start bytes have been
5844 * carefully chosen so they serve as well to be used as a shift value to mask
5845 * off the leading 1 bits of the start byte. Unfortunately the addition of
5846 * being able to distinguish non-characters makes this not fully work. This is
5847 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5849 * 1) ED because it could be a surrogate
5850 * 2) EF because it could be a non-character
5851 * 3) the rest, which can never evaluate to a problematic code point.
5853 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5854 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5855 * But that only allows two categories, and we need three. khw made the
5856 * decision to therefore treat the ED start byte as an error, so that the dfa
5857 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5858 * distinguish EF vs the rest. Then special code is used to deal with ED,
5859 * that's executed only when the dfa drops out. The code points started by ED
5860 * are half surrogates, and half hangul syllables. This means that 2048 of the
5861 * the hangul syllables (about 18%) take longer than all other non-problematic
5862 * code points to handle.
5864 * The changes to handle non-characters requires the addition of states and
5865 * classes to the dfa. (See the section on "Mapping bytes to character
5866 * classes" in the linked-to document for further explanation of the original
5890 * F1-F3 6 (6 bits can be stripped)
5891 * F4 5 (only 5 can be stripped)
5895 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5896 /* The first part of the table maps bytes to character classes to reduce
5897 * the size of the transition table and create bitmasks. */
5898 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5899 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5900 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5901 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5902 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5903 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5904 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5905 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5906 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5907 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5908 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5909 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5910 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5911 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5912 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5913 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5915 /* The second part is a transition table that maps a combination
5916 * of a state of the automaton and a character class to a new state, called a
5917 * node. The nodes are:
5918 * N0 The initial state, and final accepting one.
5919 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5920 * immediately when the start byte indicates a two-byte sequence
5921 * N2 Any two continuation bytes left.
5922 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5923 * the other continuations transition to state N1
5924 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5925 * the other continuations transitions to N1
5926 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5927 * [9AB]F transition to N10; the other continuations to N2.
5928 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5929 * to N10; the other continuations to N2.
5930 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5931 * (non-unicode); 8F transitions to N10; the other continuations to N2
5932 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5933 * (non-characters); the other continuations transition to N0.
5934 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
5935 * (non-characters); the other continuations transition to N0.
5936 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
5937 * Continuation byte BF transitions to N11; the other continuations to
5939 * N11 Initial sequence is the two bytes given in N10 followed by BF.
5940 * Continuation bytes BE and BF are illegal (non-characters); the other
5941 * continuations transition to N0.
5942 * 1 Reject. All transitions not mentioned above (except the single
5943 * byte ones (as they are always legal) are to this state.
5957 # define NUM_CLASSES 19
5959 # define N1 ((N0) + NUM_CLASSES)
5960 # define N2 ((N1) + NUM_CLASSES)
5961 # define N3 ((N2) + NUM_CLASSES)
5962 # define N4 ((N3) + NUM_CLASSES)
5963 # define N5 ((N4) + NUM_CLASSES)
5964 # define N6 ((N5) + NUM_CLASSES)
5965 # define N7 ((N6) + NUM_CLASSES)
5966 # define N8 ((N7) + NUM_CLASSES)
5967 # define N9 ((N8) + NUM_CLASSES)
5968 # define N10 ((N9) + NUM_CLASSES)
5969 # define N11 ((N10) + NUM_CLASSES)
5971 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
5972 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
5973 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5974 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
5976 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
5977 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
5978 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
5979 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
5980 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
5981 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
5982 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5983 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
5984 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5987 /* And below is yet another version of the above tables that accepts only UTF-8
5988 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
5989 * it allows non-characters. This is isomorphic to the original table
5990 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6004 * F1-F3 6 (6 bits can be stripped)
6005 * F4 5 (only 5 can be stripped)
6009 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6010 /* The first part of the table maps bytes to character classes to reduce
6011 * the size of the transition table and create bitmasks. */
6012 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6013 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6014 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6015 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6016 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6017 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6018 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6019 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6020 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6021 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6022 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6023 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6024 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6025 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6026 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6027 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6029 /* The second part is a transition table that maps a combination
6030 * of a state of the automaton and a character class to a new state, called a
6031 * node. The nodes are:
6032 * N0 The initial state, and final accepting one.
6033 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6034 * immediately when the start byte indicates a two-byte sequence
6035 * N2 Any two continuation bytes left.
6036 * N3 Any three continuation bytes left.
6037 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6038 * the other continuations transition to state N1
6039 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6040 * so are illegal. The other continuations transition to state N1.
6041 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6042 * the other continuations transition to N2
6043 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6044 * (non-unicode); the other continuations transition to N2
6045 * 1 Reject. All transitions not mentioned above (except the single
6046 * byte ones (as they are always legal) are to this state.
6058 # define NUM_CLASSES 12
6060 # define N1 ((N0) + NUM_CLASSES)
6061 # define N2 ((N1) + NUM_CLASSES)
6062 # define N3 ((N2) + NUM_CLASSES)
6063 # define N4 ((N3) + NUM_CLASSES)
6064 # define N5 ((N4) + NUM_CLASSES)
6065 # define N6 ((N5) + NUM_CLASSES)
6066 # define N7 ((N6) + NUM_CLASSES)
6068 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6069 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6070 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6071 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6072 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6074 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6075 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6076 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6077 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6080 # else /* End of is DOINIT */
6082 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6083 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6084 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6087 #endif /* end of isn't EBCDIC */
6089 #ifndef PERL_NO_INLINE_FUNCTIONS
6090 /* Static inline funcs that depend on includes and declarations above.
6091 Some of these reference functions in the perl object files, and some
6092 compilers aren't smart enough to eliminate unused static inline
6093 functions, so including this file in source code can cause link errors
6094 even if the source code uses none of the functions. Hence including these
6095 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
6096 (obviously) result in unworkable XS code, but allows simple probing code
6097 to continue to work, because it permits tests to include the perl headers
6098 for definitions without creating a link dependency on the perl library
6099 (which may not exist yet).
6102 # include "inline.h"
6105 #include "overload.h"
6114 CV* table[NofAMmeth];
6116 struct am_table_short {
6122 typedef struct am_table AMT;
6123 typedef struct am_table_short AMTS;
6125 #define AMGfallNEVER 1
6127 #define AMGfallYES 3
6129 #define AMTf_AMAGIC 1
6130 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6131 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6132 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6134 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6137 * some compilers like to redefine cos et alia as faster
6138 * (and less accurate?) versions called F_cos et cetera (Quidquid
6139 * latine dictum sit, altum viditur.) This trick collides with
6140 * the Perl overloading (amg). The following #defines fool both.
6145 # define F_atan2_amg atan2_amg
6148 # define F_cos_amg cos_amg
6151 # define F_exp_amg exp_amg
6154 # define F_log_amg log_amg
6157 # define F_pow_amg pow_amg
6160 # define F_sin_amg sin_amg
6163 # define F_sqrt_amg sqrt_amg
6165 #endif /* _FASTMATH */
6167 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6168 PERLDBf_NOOPT | PERLDBf_INTER | \
6169 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6170 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6172 /* No _NONAME, _GOTO */
6173 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6174 #define PERLDBf_LINE 0x02 /* Keep line # */
6175 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6176 #define PERLDBf_INTER 0x08 /* Preserve more data for
6177 later inspections */
6178 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6179 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6180 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6181 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6182 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6183 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6184 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6185 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6186 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6188 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6189 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6190 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6191 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6192 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6193 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6194 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6195 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6196 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6197 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6198 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6199 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6200 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6202 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6205 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6206 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6207 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6208 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6209 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6210 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6211 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6212 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6214 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6215 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6216 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6217 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6218 # define USER_PROP_MUTEX_INIT NOOP
6219 # define USER_PROP_MUTEX_LOCK NOOP
6220 # define USER_PROP_MUTEX_UNLOCK NOOP
6221 # define USER_PROP_MUTEX_TERM NOOP
6224 #ifdef USE_LOCALE /* These locale things are all subject to change */
6226 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6228 # define IN_LOCALE_RUNTIME (PL_curcop \
6229 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6231 /* Returns TRUE if either form of the locale pragma is in effect */
6232 # define IN_SOME_LOCALE_FORM_RUNTIME \
6233 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6235 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6236 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6237 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6240 =head1 Locale-related functions and macros
6242 =for apidoc Amn|bool|IN_LOCALE
6244 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6245 locale>>) is in effect.
6247 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6249 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6250 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6252 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6254 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6255 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6260 # define IN_LOCALE \
6261 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6262 # define IN_SOME_LOCALE_FORM \
6263 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6264 : IN_SOME_LOCALE_FORM_RUNTIME)
6266 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6267 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6269 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6270 # define IN_LC_PARTIAL_RUNTIME \
6271 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6273 # define IN_LC_COMPILETIME(category) \
6274 ( IN_LC_ALL_COMPILETIME \
6275 || ( IN_LC_PARTIAL_COMPILETIME \
6276 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6277 # define IN_LC_RUNTIME(category) \
6278 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6279 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6280 # define IN_LC(category) \
6281 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6283 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6285 /* This internal macro should be called from places that operate under
6286 * locale rules. If there is a problem with the current locale that
6287 * hasn't been raised yet, it will output a warning this time. Because
6288 * this will so rarely be true, there is no point to optimize for time;
6289 * instead it makes sense to minimize space used and do all the work in
6290 * the rarely called function */
6291 # ifdef USE_LOCALE_CTYPE
6292 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6294 if (UNLIKELY(PL_warn_locale)) { \
6295 Perl__warn_problematic_locale(); \
6299 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6303 /* These two internal macros are called when a warning should be raised,
6304 * and will do so if enabled. The first takes a single code point
6305 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6306 * string, and an end position which it won't try to read past */
6307 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6309 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6310 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6311 "Wide character (U+%" UVXf ") in %s",\
6312 (UV) cp, OP_DESC(PL_op)); \
6316 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6317 STMT_START { /* Check if to warn before doing the conversion work */\
6318 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6319 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6320 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6321 "Wide character (U+%" UVXf ") in %s", \
6323 ? UNICODE_REPLACEMENT \
6329 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6330 #else /* No locale usage */
6331 # define IN_LOCALE_RUNTIME 0
6332 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6333 # define IN_LOCALE_COMPILETIME 0
6334 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6335 # define IN_LOCALE 0
6336 # define IN_SOME_LOCALE_FORM 0
6337 # define IN_LC_ALL_COMPILETIME 0
6338 # define IN_LC_ALL_RUNTIME 0
6339 # define IN_LC_PARTIAL_COMPILETIME 0
6340 # define IN_LC_PARTIAL_RUNTIME 0
6341 # define IN_LC_COMPILETIME(category) 0
6342 # define IN_LC_RUNTIME(category) 0
6343 # define IN_LC(category) 0
6344 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6345 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6346 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6350 /* Locale/thread synchronization macros. These aren't needed if using
6351 * thread-safe locale operations, except if something is broken */
6352 #if defined(USE_LOCALE) \
6353 && defined(USE_ITHREADS) \
6354 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6356 /* We have a locale object holding the 'C' locale for Posix 2008 */
6357 # ifndef USE_POSIX_2008_LOCALE
6358 # define _LOCALE_TERM_POSIX_2008 NOOP
6360 # define _LOCALE_TERM_POSIX_2008 \
6362 if (PL_C_locale_obj) { \
6363 /* Make sure we aren't using the locale \
6364 * space we are about to free */ \
6365 uselocale(LC_GLOBAL_LOCALE); \
6366 freelocale(PL_C_locale_obj); \
6367 PL_C_locale_obj = (locale_t) NULL; \
6372 /* This is used as a generic lock for locale operations. For example this is
6373 * used when calling nl_langinfo() so that another thread won't zap the
6374 * contents of its buffer before it gets saved; and it's called when changing
6375 * the locale of LC_MESSAGES. On some systems the latter can cause the
6376 * nl_langinfo buffer to be zapped under a race condition.
6378 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6379 * should be contained entirely within the locked portion of LC_NUMERIC. This
6380 * mutex should be used only in very short sections of code, while
6381 * LC_NUMERIC_LOCK may span more operations. By always following this
6382 * convention, deadlock should be impossible. But if necessary, the two
6383 * mutexes could be combined.
6385 * Actually, the two macros just below with the '_V' suffixes are used in just
6386 * a few places where there is a broken localeconv(), but otherwise things are
6387 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6388 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6389 # define LOCALE_LOCK_V \
6391 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6392 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6393 MUTEX_LOCK(&PL_locale_mutex); \
6395 # define LOCALE_UNLOCK_V \
6397 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6398 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6399 MUTEX_UNLOCK(&PL_locale_mutex); \
6402 /* On windows, we just need the mutex for LOCALE_LOCK */
6403 # ifdef TS_W32_BROKEN_LOCALECONV
6404 # define LOCALE_LOCK NOOP
6405 # define LOCALE_UNLOCK NOOP
6406 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6407 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6408 # define LC_NUMERIC_LOCK(cond)
6409 # define LC_NUMERIC_UNLOCK
6411 # define LOCALE_LOCK LOCALE_LOCK_V
6412 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6414 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6416 # define LOCALE_INIT STMT_START { \
6417 MUTEX_INIT(&PL_locale_mutex); \
6418 MUTEX_INIT(&PL_lc_numeric_mutex); \
6421 # define LOCALE_TERM STMT_START { \
6422 MUTEX_DESTROY(&PL_locale_mutex); \
6423 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6424 _LOCALE_TERM_POSIX_2008; \
6427 /* This mutex is used to create critical sections where we want the
6428 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6429 * the underlying locale, so that other threads interrupting this one don't
6430 * change it to the wrong state before we've had a chance to complete our
6431 * operation. It can stay locked over an entire printf operation, for
6432 * example. And so is made distinct from the LOCALE_LOCK mutex.
6434 * This simulates kind of a general semaphore. The current thread will
6435 * lock the mutex if the per-thread variable is zero, and then increments
6436 * that variable. Each corresponding UNLOCK decrements the variable until
6437 * it is 0, at which point it actually unlocks the mutex. Since the
6438 * variable is per-thread, there is no race with other threads.
6440 * The single argument is a condition to test for, and if true, to panic,
6441 * as this would be an attempt to complement the LC_NUMERIC state, and
6442 * we're not supposed to because it's locked.
6444 * Clang improperly gives warnings for this, if not silenced:
6445 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6447 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6448 CLANG_DIAG_IGNORE(-Wthread-safety) \
6450 if (PL_lc_numeric_mutex_depth <= 0) { \
6451 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6452 PL_lc_numeric_mutex_depth = 1; \
6453 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6454 "%s: %d: locking lc_numeric; depth=1\n", \
6455 __FILE__, __LINE__)); \
6458 PL_lc_numeric_mutex_depth++; \
6459 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6460 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6461 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6462 if (cond_to_panic_if_already_locked) { \
6463 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6464 " LC_NUMERIC incompatibly", \
6465 __FILE__, __LINE__); \
6470 # define LC_NUMERIC_UNLOCK \
6472 if (PL_lc_numeric_mutex_depth <= 1) { \
6473 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6474 PL_lc_numeric_mutex_depth = 0; \
6475 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6476 "%s: %d: unlocking lc_numeric; depth=0\n", \
6477 __FILE__, __LINE__)); \
6480 PL_lc_numeric_mutex_depth--; \
6481 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6482 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6483 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6488 # endif /* End of needs locking LC_NUMERIC */
6489 #else /* Below is no locale sync needed */
6490 # define LOCALE_INIT
6491 # define LOCALE_LOCK
6492 # define LOCALE_LOCK_V
6493 # define LOCALE_UNLOCK
6494 # define LOCALE_UNLOCK_V
6495 # define LC_NUMERIC_LOCK(cond)
6496 # define LC_NUMERIC_UNLOCK
6497 # define LOCALE_TERM
6500 #ifdef USE_LOCALE_NUMERIC
6502 /* These macros are for toggling between the underlying locale (UNDERLYING or
6503 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6504 * locale if the underlying locale is indistinguishable from it in the numeric
6505 * operations used by Perl, namely the decimal point, and even the thousands
6508 =head1 Locale-related functions and macros
6510 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6512 This macro should be used as a statement. It declares a private variable
6513 (whose name begins with an underscore) that is needed by the other macros in
6514 this section. Failing to include this correctly should lead to a syntax error.
6515 For compatibility with C89 C compilers it should be placed in a block before
6516 any executable statements.
6518 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6520 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
6521 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6522 underlying locale. (The perl interpreter could be wrong about what the
6523 underlying locale actually is if some C or XS code has called the C library
6524 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6525 this macro will update perl's records.)
6527 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6528 declare at compile time a private variable used by this macro. This macro
6529 should be called as a single statement, not an expression, but with an empty
6530 argument list, like this:
6533 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6535 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6537 RESTORE_LC_NUMERIC();
6541 The private variable is used to save the current locale state, so
6542 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6544 On threaded perls not operating with thread-safe functionality, this macro uses
6545 a mutex to force a critical section. Therefore the matching RESTORE should be
6546 close by, and guaranteed to be called.
6548 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6550 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6551 This locale category is generally kept set to a locale where the decimal radix
6552 character is a dot, and the separator between groups of digits is empty. This
6553 is because most XS code that reads floating point numbers is expecting them to
6556 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6557 aware of locale if the call to the XS or C code from the Perl program is
6558 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6559 instead from outside such scope.
6561 This macro is the start of wrapping the C or XS code; the wrap ending is done
6562 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6563 the state can be changed that will adversely affect other XS code.
6565 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6566 declare at compile time a private variable used by this macro. This macro
6567 should be called as a single statement, not an expression, but with an empty
6568 argument list, like this:
6571 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6573 STORE_LC_NUMERIC_SET_TO_NEEDED();
6575 RESTORE_LC_NUMERIC();
6579 On threaded perls not operating with thread-safe functionality, this macro uses
6580 a mutex to force a critical section. Therefore the matching RESTORE should be
6581 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6582 for a more contained way to ensure that.
6584 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6586 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6587 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6588 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6589 cannot have changed since the precalculation.
6591 =for apidoc Am|void|RESTORE_LC_NUMERIC
6593 This is used in conjunction with one of the macros
6594 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6595 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6596 C<LC_NUMERIC> state.
6598 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6599 declare at compile time a private variable used by this macro and the two
6600 C<STORE> ones. This macro should be called as a single statement, not an
6601 expression, but with an empty argument list, like this:
6604 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6606 RESTORE_LC_NUMERIC();
6610 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6612 This macro invokes the supplied statement or block within the context
6613 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6616 WITH_LC_NUMERIC_SET_TO_NEEDED(
6617 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6623 #ifdef USE_LOCALE_NUMERIC
6624 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6625 STORE_LC_NUMERIC_SET_TO_NEEDED();
6627 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6628 #ifdef USE_LOCALE_NUMERIC
6629 RESTORE_LC_NUMERIC();
6633 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6635 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6636 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6637 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6638 cannot have changed since the precalculation.
6644 /* If the underlying numeric locale has a non-dot decimal point or has a
6645 * non-empty floating point thousands separator, the current locale is instead
6646 * generally kept in the C locale instead of that underlying locale. The
6647 * current status is known by looking at two words. One is non-zero if the
6648 * current numeric locale is the standard C/POSIX one or is indistinguishable
6649 * from C. The other is non-zero if the current locale is the underlying
6650 * locale. Both can be non-zero if, as often happens, the underlying locale is
6651 * C or indistinguishable from it.
6653 * khw believes the reason for the variables instead of the bits in a single
6654 * word is to avoid having to have masking instructions. */
6656 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6658 /* We can lock the category to stay in the C locale, making requests to the
6659 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6661 # define _NOT_IN_NUMERIC_UNDERLYING \
6662 (! PL_numeric_underlying && PL_numeric_standard < 2)
6664 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6665 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6667 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6669 bool _in_lc_numeric = (in); \
6671 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6672 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6673 if (_in_lc_numeric) { \
6674 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6675 Perl_set_numeric_underlying(aTHX); \
6676 _restore_LC_NUMERIC_function \
6677 = &Perl_set_numeric_standard; \
6681 if (_NOT_IN_NUMERIC_STANDARD) { \
6682 Perl_set_numeric_standard(aTHX); \
6683 _restore_LC_NUMERIC_function \
6684 = &Perl_set_numeric_underlying; \
6689 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6690 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6692 # define RESTORE_LC_NUMERIC() \
6694 if (_restore_LC_NUMERIC_function) { \
6695 _restore_LC_NUMERIC_function(aTHX); \
6697 LC_NUMERIC_UNLOCK; \
6700 /* The next two macros set unconditionally. These should be rarely used, and
6701 * only after being sure that this is what is needed */
6702 # define SET_NUMERIC_STANDARD() \
6704 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6705 "%s: %d: lc_numeric standard=%d\n", \
6706 __FILE__, __LINE__, PL_numeric_standard)); \
6707 Perl_set_numeric_standard(aTHX); \
6708 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6709 "%s: %d: lc_numeric standard=%d\n", \
6710 __FILE__, __LINE__, PL_numeric_standard)); \
6713 # define SET_NUMERIC_UNDERLYING() \
6715 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6716 Perl_set_numeric_underlying(aTHX); \
6720 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6721 * the RESTORE_foo ones called to switch back, but only if need be */
6722 # define STORE_LC_NUMERIC_SET_STANDARD() \
6724 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6725 if (_NOT_IN_NUMERIC_STANDARD) { \
6726 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6727 Perl_set_numeric_standard(aTHX); \
6731 /* Rarely, we want to change to the underlying locale even outside of 'use
6732 * locale'. This is principally in the POSIX:: functions */
6733 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6735 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6736 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6737 Perl_set_numeric_underlying(aTHX); \
6738 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6742 /* Lock/unlock to the C locale until unlock is called. This needs to be
6743 * recursively callable. [perl #128207] */
6744 # define LOCK_LC_NUMERIC_STANDARD() \
6746 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6747 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6748 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6749 __ASSERT_(PL_numeric_standard) \
6750 PL_numeric_standard++; \
6753 # define UNLOCK_LC_NUMERIC_STANDARD() \
6755 if (PL_numeric_standard > 1) { \
6756 PL_numeric_standard--; \
6761 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6762 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6763 __FILE__, __LINE__, PL_numeric_standard)); \
6766 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6768 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6769 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6771 RESTORE_LC_NUMERIC(); \
6774 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6775 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6777 #else /* !USE_LOCALE_NUMERIC */
6779 # define SET_NUMERIC_STANDARD()
6780 # define SET_NUMERIC_UNDERLYING()
6781 # define IS_NUMERIC_RADIX(a, b) (0)
6782 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6783 # define STORE_LC_NUMERIC_SET_STANDARD()
6784 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6785 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6786 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6787 # define RESTORE_LC_NUMERIC()
6788 # define LOCK_LC_NUMERIC_STANDARD()
6789 # define UNLOCK_LC_NUMERIC_STANDARD()
6790 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6791 STMT_START { block; } STMT_END
6792 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6793 STMT_START { block; } STMT_END
6795 #endif /* !USE_LOCALE_NUMERIC */
6797 #define Atof my_atof
6801 =head1 Numeric functions
6803 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6805 This is a synonym for L</my_strtod>.
6807 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6809 Platform and configuration independent C<strtol>. This expands to the
6810 appropriate C<strotol>-like function based on the platform and F<Configure>
6811 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6814 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6816 Platform and configuration independent C<strtoul>. This expands to the
6817 appropriate C<strotoul>-like function based on the platform and F<Configure>
6818 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6825 #define Strtod my_strtod
6827 #if defined(HAS_STRTOD) \
6828 || defined(USE_QUADMATH) \
6829 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6830 && defined(USE_LONG_DOUBLE))
6831 # define Perl_strtod Strtod
6834 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6835 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6837 # define strtoll __strtoll /* secret handshake */
6839 # if defined(WIN64) && defined(_MSC_VER)
6840 # define strtoll _strtoi64 /* secret handshake */
6842 # if !defined(Strtol) && defined(HAS_STRTOLL)
6843 # define Strtol strtoll
6845 # if !defined(Strtol) && defined(HAS_STRTOQ)
6846 # define Strtol strtoq
6848 /* is there atoq() anywhere? */
6850 #if !defined(Strtol) && defined(HAS_STRTOL)
6851 # define Strtol strtol
6854 /* It would be more fashionable to use Strtol() to define atol()
6855 * (as is done for Atoul(), see below) but for backward compatibility
6856 * we just assume atol(). */
6857 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6858 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6860 # define atoll _atoi64 /* secret handshake */
6868 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6869 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6871 # define strtoull __strtoull /* secret handshake */
6873 # if defined(WIN64) && defined(_MSC_VER)
6874 # define strtoull _strtoui64 /* secret handshake */
6876 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6877 # define Strtoul strtoull
6879 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6880 # define Strtoul strtouq
6882 /* is there atouq() anywhere? */
6884 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6885 # define Strtoul strtoul
6887 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6888 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6891 # define Atoul(s) Strtoul(s, NULL, 10)
6894 #define grok_bin(s,lp,fp,rp) \
6895 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6896 #define grok_oct(s,lp,fp,rp) \
6897 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6898 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6899 #define grok_hex(s,lp,fp,rp) \
6900 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6902 #ifndef PERL_SCRIPT_MODE
6903 #define PERL_SCRIPT_MODE "r"
6906 /* not used. Kept as a NOOP for backcompat */
6907 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6910 * Some nonpreemptive operating systems find it convenient to
6911 * check for asynchronous conditions after each op execution.
6912 * Keep this check simple, or it may slow down execution
6917 # ifndef PERL_ASYNC_CHECK
6918 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6922 #ifndef PERL_ASYNC_CHECK
6923 # define PERL_ASYNC_CHECK() NOOP
6927 * On some operating systems, a memory allocation may succeed,
6928 * but put the process too close to the system's comfort limit.
6929 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6932 #ifndef PERL_ALLOC_CHECK
6933 #define PERL_ALLOC_CHECK(p) NOOP
6937 # include <sys/ipc.h>
6938 # include <sys/sem.h>
6939 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6942 struct semid_ds *buf;
6943 unsigned short *array;
6946 # ifdef USE_SEMCTL_SEMUN
6947 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6948 union gccbug_semun {
6950 struct semid_ds *buf;
6951 unsigned short *array;
6954 # define semun gccbug_semun
6956 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6957 # elif defined(USE_SEMCTL_SEMID_DS)
6958 # ifdef EXTRA_F_IN_SEMUN_BUF
6959 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6961 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6967 * Boilerplate macros for initializing and accessing interpreter-local
6968 * data from C. All statics in extensions should be reworked to use
6969 * this, if you want to make the extension thread-safe. See
6970 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6971 * and perlxs.pod for more.
6973 * Code that uses these macros is responsible for the following:
6974 * 1. #define MY_CXT_KEY to a unique string, e.g.
6975 * "DynaLoader::_guts" XS_VERSION
6976 * XXX in the current implementation, this string is ignored.
6977 * 2. Declare a typedef named my_cxt_t that is a structure that contains
6978 * all the data that needs to be interpreter-local.
6979 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
6980 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
6981 * (typically put in the BOOT: section).
6982 * 5. Use the members of the my_cxt_t structure everywhere as
6984 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
6988 #if defined(PERL_IMPLICIT_CONTEXT)
6990 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
6991 * right after the definition (i.e. at file scope). The non-threads
6992 * case below uses it to declare the data as static. */
6993 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
6994 # define START_MY_CXT
6995 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
6996 # define MY_CXT_INIT_ARG MY_CXT_KEY
6998 # define START_MY_CXT static int my_cxt_index = -1;
6999 # define MY_CXT_INDEX my_cxt_index
7000 # define MY_CXT_INIT_ARG &my_cxt_index
7001 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
7003 /* Creates and zeroes the per-interpreter data.
7004 * (We allocate my_cxtp in a Perl SV so that it will be released when
7005 * the interpreter goes away.) */
7006 # define MY_CXT_INIT \
7007 my_cxt_t *my_cxtp = \
7008 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7009 PERL_UNUSED_VAR(my_cxtp)
7010 # define MY_CXT_INIT_INTERP(my_perl) \
7011 my_cxt_t *my_cxtp = \
7012 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7013 PERL_UNUSED_VAR(my_cxtp)
7015 /* This declaration should be used within all functions that use the
7016 * interpreter-local data. */
7018 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7019 # define dMY_CXT_INTERP(my_perl) \
7020 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7022 /* Clones the per-interpreter data. */
7023 # define MY_CXT_CLONE \
7024 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7025 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7026 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7027 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7031 /* This macro must be used to access members of the my_cxt_t structure.
7032 * e.g. MY_CXT.some_data */
7033 # define MY_CXT (*my_cxtp)
7035 /* Judicious use of these macros can reduce the number of times dMY_CXT
7036 * is used. Use is similar to pTHX, aTHX etc. */
7037 # define pMY_CXT my_cxt_t *my_cxtp
7038 # define pMY_CXT_ pMY_CXT,
7039 # define _pMY_CXT ,pMY_CXT
7040 # define aMY_CXT my_cxtp
7041 # define aMY_CXT_ aMY_CXT,
7042 # define _aMY_CXT ,aMY_CXT
7044 #else /* PERL_IMPLICIT_CONTEXT */
7046 # define START_MY_CXT static my_cxt_t my_cxt;
7047 # define dMY_CXT_SV dNOOP
7048 # define dMY_CXT dNOOP
7049 # define dMY_CXT_INTERP(my_perl) dNOOP
7050 # define MY_CXT_INIT NOOP
7051 # define MY_CXT_CLONE NOOP
7052 # define MY_CXT my_cxt
7054 # define pMY_CXT void
7061 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
7072 # undef FD_CLOEXEC /* a lie in AmigaOS */
7076 # include <sys/file.h>
7079 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7080 EXTERN_C int flock(int fd, int op);
7084 /* Assume UNIX defaults */
7085 # define O_RDONLY 0000
7086 # define O_WRONLY 0001
7087 # define O_RDWR 0002
7088 # define O_CREAT 0100
7099 #if O_TEXT != O_BINARY
7100 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7101 * that is, you are somehow DOSish. */
7102 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7103 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7104 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7105 /* VOS has O_TEXT != O_BINARY, and they have effect,
7106 * but VOS always uses LF, never CRLF. */
7107 /* If you have O_TEXT different from your O_BINARY but you still are
7108 * not a CRLF shop. */
7109 # undef PERLIO_USING_CRLF
7111 /* If you really are DOSish. */
7112 # define PERLIO_USING_CRLF 1
7117 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7120 #ifndef EXEC_ARGV_CAST
7121 #define EXEC_ARGV_CAST(x) (char **)x
7124 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7125 int). value returned in pointed-
7127 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7128 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7129 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7130 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7131 #define IS_NUMBER_NAN 0x20 /* this is not */
7132 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7135 =head1 Numeric functions
7137 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7139 A synonym for L</grok_numeric_radix>
7143 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7145 /* Number scan flags. All are used for input, the ones used for output are so
7147 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7148 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7150 /* grok_??? input: ignored; output: found overflow */
7151 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7153 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7154 * this isn't set on output if one is found. Instead, see
7155 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7156 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7158 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7159 and set IS_NUMBER_TRAILING */
7161 /* These are considered experimental, so not exposed publicly */
7162 #if defined(PERL_CORE) || defined(PERL_EXT)
7163 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7164 * output: found such a number */
7165 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7167 /* If this is set on input, and no illegal digit is found, it will be cleared
7168 * on output; otherwise unchanged */
7169 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7171 /* Don't warn on overflow; output flag still set */
7172 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7174 /* Forbid a leading underscore, which the other one doesn't */
7175 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7179 /* to let user control profiling */
7180 #ifdef PERL_GPROF_CONTROL
7181 extern void moncontrol(int);
7182 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7184 #define PERL_GPROF_MONCONTROL(x)
7187 /* ISO 6429 NEL - C1 control NExt Line */
7188 /* See https://www.unicode.org/unicode/reports/tr13/ */
7189 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7191 #ifndef PIPESOCK_MODE
7192 # define PIPESOCK_MODE
7195 #ifndef SOCKET_OPEN_MODE
7196 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7199 #ifndef PIPE_OPEN_MODE
7200 # define PIPE_OPEN_MODE PIPESOCK_MODE
7203 #define PERL_MAGIC_UTF8_CACHESIZE 2
7205 #define PERL_UNICODE_STDIN_FLAG 0x0001
7206 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7207 #define PERL_UNICODE_STDERR_FLAG 0x0004
7208 #define PERL_UNICODE_IN_FLAG 0x0008
7209 #define PERL_UNICODE_OUT_FLAG 0x0010
7210 #define PERL_UNICODE_ARGV_FLAG 0x0020
7211 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7212 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7213 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7215 #define PERL_UNICODE_STD_FLAG \
7216 (PERL_UNICODE_STDIN_FLAG | \
7217 PERL_UNICODE_STDOUT_FLAG | \
7218 PERL_UNICODE_STDERR_FLAG)
7220 #define PERL_UNICODE_INOUT_FLAG \
7221 (PERL_UNICODE_IN_FLAG | \
7222 PERL_UNICODE_OUT_FLAG)
7224 #define PERL_UNICODE_DEFAULT_FLAGS \
7225 (PERL_UNICODE_STD_FLAG | \
7226 PERL_UNICODE_INOUT_FLAG | \
7227 PERL_UNICODE_LOCALE_FLAG)
7229 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7231 #define PERL_UNICODE_STDIN 'I'
7232 #define PERL_UNICODE_STDOUT 'O'
7233 #define PERL_UNICODE_STDERR 'E'
7234 #define PERL_UNICODE_STD 'S'
7235 #define PERL_UNICODE_IN 'i'
7236 #define PERL_UNICODE_OUT 'o'
7237 #define PERL_UNICODE_INOUT 'D'
7238 #define PERL_UNICODE_ARGV 'A'
7239 #define PERL_UNICODE_LOCALE 'L'
7240 #define PERL_UNICODE_WIDESYSCALLS 'W'
7241 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7243 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7246 =head1 Numeric functions
7248 =for apidoc Am|int|PERL_ABS|int
7250 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7251 integers, but it works for any type.) Use instead of these, since the C
7252 library ones force their argument to be what it is expecting, potentially
7253 leading to disaster. But also beware that this evaluates its argument twice,
7259 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7261 #if defined(__DECC) && defined(__osf__)
7262 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7265 #define do_open(g, n, l, a, rm, rp, sf) \
7266 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7267 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7268 # define do_exec(cmd) do_exec3(cmd,0,0)
7271 # define do_aexec Perl_do_aexec
7273 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7278 =head1 Miscellaneous Functions
7280 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7282 Same as L</is_safe_syscall>.
7286 Allows one ending \0
7288 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7290 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7292 #if defined(OEMVS) || defined(__amigaos4__)
7293 #define NO_ENV_ARRAY_IN_MAIN
7296 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7297 * are here so that they are available throughout the core
7298 * NOTE that even though some are for _escape and some for _pretty
7299 * there must not be any clashes as the flags from _pretty are
7300 * passed straight through to _escape.
7303 #define PERL_PV_ESCAPE_QUOTE 0x000001
7304 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7306 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7307 #define PERL_PV_PRETTY_LTGT 0x000004
7308 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7310 #define PERL_PV_ESCAPE_UNI 0x000100
7311 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7312 #define PERL_PV_ESCAPE_NONASCII 0x000400
7313 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7315 #define PERL_PV_ESCAPE_ALL 0x001000
7316 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7317 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7318 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7319 #define PERL_PV_ESCAPE_RE 0x008000
7321 #define PERL_PV_ESCAPE_DWIM 0x010000
7324 /* used by pv_display in dump.c*/
7325 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7326 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7328 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7329 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7330 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7331 # define DOUBLE_IS_VAX_FLOAT
7333 # define DOUBLE_IS_IEEE_FORMAT
7336 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7337 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7338 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7339 # define DOUBLE_LITTLE_ENDIAN
7342 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7343 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7344 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7345 # define DOUBLE_BIG_ENDIAN
7348 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7349 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7350 # define DOUBLE_MIX_ENDIAN
7353 /* The VAX fp formats are neither consistently little-endian nor
7354 * big-endian, and neither are they really IEEE-mixed endian like
7355 * the mixed-endian ARM IEEE formats (with swapped bytes).
7356 * Ultimately, the VAX format came from the PDP-11.
7358 * The ordering of the parts in VAX floats is quite vexing.
7359 * In the below the fraction_n are the mantissa bits.
7361 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7362 * while the rightmost bit in each fraction is the least significant:
7363 * in other words, big-endian bit order within the fractions.
7365 * The fraction segments themselves would be big-endianly, except that
7366 * within 32 bit segments the less significant half comes first, the more
7367 * significant after, except that in the format H (used for long doubles)
7368 * the first fraction segment is alone, because the exponent is wider.
7369 * This means for example that both the most and the least significant
7370 * bits can be in the middle of the floats, not at either end.
7373 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7374 * http://www.quadibloc.com/comp/cp0201.htm
7375 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7376 * (somebody at HP should be fired for the URLs)
7378 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7379 * (exponent bias 128, hidden first one-bit)
7381 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7382 * fraction_4:16 fraction_3:16
7383 * (exponent bias 128, hidden first one-bit)
7385 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7386 * fraction_4:16 fraction_3:16
7387 * (exponent bias 1024, hidden first one-bit)
7389 * H fraction_1:16 sign:1 exp:15
7390 * fraction_3:16 fraction_2:16
7391 * fraction_5:16 fraction_4:16
7392 * fraction_7:16 fraction_6:16
7393 * (exponent bias 16384, hidden first one-bit)
7394 * (available only on VAX, and only on Fortran?)
7396 * The formats S, T and X are available on the Alpha (and Itanium,
7397 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7398 * binary32, binary64, and binary128 (commonly: float, double, long double).
7400 * S sign:1 exp:8 mantissa:23
7401 * (exponent bias 127, hidden first one-bit)
7403 * T sign:1 exp:11 mantissa:52
7404 * (exponent bias 1022, hidden first one-bit)
7406 * X sign:1 exp:15 mantissa:112
7407 * (exponent bias 16382, hidden first one-bit)
7411 #ifdef DOUBLE_IS_VAX_FLOAT
7412 # define DOUBLE_VAX_ENDIAN
7415 #ifdef DOUBLE_IS_IEEE_FORMAT
7416 /* All the basic IEEE formats have the implicit bit,
7417 * except for the x86 80-bit extended formats, which will undef this.
7418 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7419 * do not have the implicit bit of one. */
7420 # define NV_IMPLICIT_BIT
7423 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7425 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7426 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7427 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7428 # define LONGDOUBLE_LITTLE_ENDIAN
7431 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7432 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7433 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7434 # define LONGDOUBLE_BIG_ENDIAN
7437 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7438 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7439 # define LONGDOUBLE_MIX_ENDIAN
7442 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7443 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7444 # define LONGDOUBLE_X86_80_BIT
7445 # ifdef USE_LONG_DOUBLE
7446 # undef NV_IMPLICIT_BIT
7447 # define NV_X86_80_BIT
7451 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7452 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7453 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7454 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7455 # define LONGDOUBLE_DOUBLEDOUBLE
7458 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7459 # define LONGDOUBLE_VAX_ENDIAN
7462 #endif /* LONG_DOUBLEKIND */
7464 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7465 # if defined(DOUBLE_LITTLE_ENDIAN)
7466 # define NV_LITTLE_ENDIAN
7467 # elif defined(DOUBLE_BIG_ENDIAN)
7468 # define NV_BIG_ENDIAN
7469 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7470 # define NV_MIX_ENDIAN
7472 #elif NVSIZE == DOUBLESIZE
7473 # ifdef DOUBLE_LITTLE_ENDIAN
7474 # define NV_LITTLE_ENDIAN
7476 # ifdef DOUBLE_BIG_ENDIAN
7477 # define NV_BIG_ENDIAN
7479 # ifdef DOUBLE_MIX_ENDIAN
7480 # define NV_MIX_ENDIAN
7482 # ifdef DOUBLE_VAX_ENDIAN
7483 # define NV_VAX_ENDIAN
7485 #elif NVSIZE == LONG_DOUBLESIZE
7486 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7487 # define NV_LITTLE_ENDIAN
7489 # ifdef LONGDOUBLE_BIG_ENDIAN
7490 # define NV_BIG_ENDIAN
7492 # ifdef LONGDOUBLE_MIX_ENDIAN
7493 # define NV_MIX_ENDIAN
7495 # ifdef LONGDOUBLE_VAX_ENDIAN
7496 # define NV_VAX_ENDIAN
7500 /* We have somehow managed not to define the denormal/subnormal
7503 * This may happen if the compiler doesn't expose the C99 math like
7504 * the fpclassify() without some special switches. Perl tries to
7505 * stay C89, so for example -std=c99 is not an option.
7507 * The Perl_isinf() and Perl_isnan() should have been defined even if
7508 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7509 * from the C89 DBL_MIN or moral equivalent. */
7510 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7511 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7514 /* This is not a great fallback: subnormals tests will fail,
7515 * but at least Perl will link and 99.999% of tests will work. */
7516 #if !defined(Perl_fp_class_denorm)
7517 # define Perl_fp_class_denorm(x) FALSE
7520 #ifdef DOUBLE_IS_IEEE_FORMAT
7521 # define DOUBLE_HAS_INF
7522 # define DOUBLE_HAS_NAN
7525 #ifdef DOUBLE_HAS_NAN
7531 /* PL_inf and PL_nan initialization.
7533 * For inf and nan initialization the ultimate fallback is dividing
7534 * one or zero by zero: however, some compilers will warn or even fail
7535 * on divide-by-zero, but hopefully something earlier will work.
7537 * If you are thinking of using HUGE_VAL for infinity, or using
7538 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7539 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7540 * and the math functions might be just generating DBL_MAX, or even zero.
7542 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7543 * Though logically correct, some compilers (like Visual C 2003)
7544 * falsely misoptimize that to zero (x-x is always zero, right?)
7546 * Finally, note that not all floating point formats define Inf (or NaN).
7547 * For the infinity a large number may be used instead. Operations that
7548 * under the IEEE floating point would return Inf or NaN may return
7549 * either large numbers (positive or negative), or they may cause
7550 * a floating point exception or some other fault.
7553 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7554 # ifndef USE_CPLUSPLUS
7555 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7558 # ifdef USE_QUADMATH
7559 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7561 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7562 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7563 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7564 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7565 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7567 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7568 # if defined(LDBL_INFINITY)
7569 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7570 # elif defined(LDBL_INF)
7571 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7572 # elif defined(INFINITY)
7573 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7575 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7577 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7580 # if defined(DBL_INFINITY)
7581 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7582 # elif defined(DBL_INF)
7583 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7584 # elif defined(INFINITY) /* C99 */
7585 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7587 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7589 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7594 # ifdef USE_QUADMATH
7595 /* Cannot use nanq("0") for PL_nan because not a compile-time
7597 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7598 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7599 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7600 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7601 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7603 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7604 # if defined(LDBL_NAN)
7605 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7606 # elif defined(LDBL_QNAN)
7607 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7609 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7611 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7614 # if defined(DBL_NAN)
7615 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7616 # elif defined(DBL_QNAN)
7617 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7618 # elif defined(NAN) /* C99 */
7619 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7621 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7626 # ifndef USE_CPLUSPLUS
7627 GCC_DIAG_RESTORE_DECL;
7632 INFNAN_NV_U8_DECL PL_inf;
7633 INFNAN_NV_U8_DECL PL_nan;
7639 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7640 * we will define NV_INF/NV_NAN as the nv part of the global const
7641 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7642 * might not be a compile-time constant, in which case it cannot be
7643 * used to initialize PL_inf/PL_nan above. */
7645 # define NV_INF PL_inf.nv
7648 # define NV_NAN PL_nan.nv
7651 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7652 * "nan-ness". Part of the payload is the quiet/signaling bit.
7653 * To back up a bit (harhar):
7655 * For IEEE 754 64-bit formats [1]:
7657 * s 000 (mantissa all-zero) zero
7658 * s 000 (mantissa non-zero) subnormals (denormals)
7659 * s 001 ... 7fe normals
7662 * For IEEE 754 128-bit formats:
7664 * s 0000 (mantissa all-zero) zero
7665 * s 0000 (mantissa non-zero) subnormals (denormals)
7666 * s 0001 ... 7ffe normals
7669 * [1] this looks like big-endian, but applies equally to little-endian.
7671 * s = Sign bit. Yes, zeros and nans can have negative sign,
7672 * the interpretation is application-specific.
7674 * q = Quietness bit, the interpretation is platform-specific.
7675 * Most platforms have the most significant bit being one
7676 * meaning quiet, but some (older mips, hppa) have the msb
7677 * being one meaning signaling. Note that the above means
7678 * that on most platforms there cannot be signaling nan with
7679 * zero payload because that is identical with infinity;
7680 * while conversely on older mips/hppa there cannot be a quiet nan
7681 * because that is identical with infinity.
7683 * Moreover, whether there is any behavioral difference
7684 * between quiet and signaling NaNs, depends on the platform.
7686 * x86 80-bit extended precision is different, the mantissa bits:
7688 * 63 62 61 30387+ pre-387 visual c
7689 * -------- ---- -------- --------
7690 * 0 0 0 invalid infinity
7691 * 0 0 1 invalid snan
7692 * 0 1 0 invalid snan
7693 * 0 1 1 invalid snan
7694 * 1 0 0 infinity snan 1.#INF
7695 * 1 0 1 snan 1.#SNAN
7696 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7697 * 1 1 1 qnan 1.#QNAN
7699 * This means that in this format there are 61 bits available
7700 * for the nan payload.
7702 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7703 * simply cannot preserve the bit. You can either use the 80-bit
7704 * extended precision (long double, -Duselongdouble), or use x86-64.
7706 * In all platforms, the payload bytes (and bits, some of them are
7707 * often in a partial byte) themselves can be either all zero (x86),
7708 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7709 * or in a double-double, the first half of the payload can follow the
7710 * native double, while in the second half the payload can be all
7711 * zeros. (Therefore the mask for payload bits is not necessarily
7712 * identical to bit complement of the NaN.) Another way of putting
7713 * this: the payload for the default NaN might not be zero.
7715 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7716 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7719 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7720 * On normal floats, the sign bit being on means negative. But this may,
7721 * or may not, be reverted on NaNs: in other words, the default NaN might
7722 * have the sign bit on, and therefore look like negative if you look
7723 * at it at the bit level.
7725 * NaN payloads are not propagated even on copies, or in arithmetics.
7726 * They *might* be, according to some rules, on your particular
7727 * cpu/os/compiler/libraries, but no guarantees.
7729 * To summarize, on most platforms, and for 64-bit doubles
7730 * (using big-endian ordering here):
7732 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7733 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7734 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7735 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7737 * The C99 nan() is supposed to generate *quiet* NaNs.
7739 * Note the asymmetry:
7740 * The 7FF0000000000000 is positive infinity,
7741 * the FFF0000000000000 is negative infinity.
7744 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7745 * For the standard IEEE 754 fp this number is usually one less that
7746 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7747 * real. For the 80-bit extended precision formats (x86*), the number
7748 * of mantissa bits... depends. For normal floats, it's 64. But for
7749 * the inf/nan, it's different (zero for inf, 61 for nan).
7750 * NVMANTBITS works for normal floats. */
7752 /* We do not want to include the quiet/signaling bit. */
7753 #define NV_NAN_BITS (NVMANTBITS - 1)
7755 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7756 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7757 # define NV_NAN_QS_BYTE_OFFSET 13
7758 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7759 # define NV_NAN_QS_BYTE_OFFSET 2
7760 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7761 # define NV_NAN_QS_BYTE_OFFSET 7
7762 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7763 # define NV_NAN_QS_BYTE_OFFSET 2
7764 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7765 # define NV_NAN_QS_BYTE_OFFSET 13
7766 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7767 # define NV_NAN_QS_BYTE_OFFSET 1
7768 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7769 # define NV_NAN_QS_BYTE_OFFSET 9
7770 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7771 # define NV_NAN_QS_BYTE_OFFSET 6
7773 # error "Unexpected long double format"
7776 # ifdef USE_QUADMATH
7777 # ifdef NV_LITTLE_ENDIAN
7778 # define NV_NAN_QS_BYTE_OFFSET 13
7779 # elif defined(NV_BIG_ENDIAN)
7780 # define NV_NAN_QS_BYTE_OFFSET 2
7782 # error "Unexpected quadmath format"
7784 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7785 # define NV_NAN_QS_BYTE_OFFSET 2
7786 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7787 # define NV_NAN_QS_BYTE_OFFSET 1
7788 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7789 # define NV_NAN_QS_BYTE_OFFSET 6
7790 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7791 # define NV_NAN_QS_BYTE_OFFSET 1
7792 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7793 # define NV_NAN_QS_BYTE_OFFSET 13
7794 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7795 # define NV_NAN_QS_BYTE_OFFSET 2
7796 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7797 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7798 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7799 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7801 /* For example the VAX formats should never
7802 * get here because they do not have NaN. */
7803 # error "Unexpected double format"
7806 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7807 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7808 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7809 * for the quiet/signaling */
7810 #if defined(USE_LONG_DOUBLE) && \
7811 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7812 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7813 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7814 #elif defined(USE_LONG_DOUBLE) && \
7815 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7816 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7817 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7818 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7819 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7821 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7823 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7824 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7825 * (bytes ordered big-endianly) for the quiet/signaling bit
7826 * for the quiet/signaling */
7827 #define NV_NAN_QS_BIT_OFFSET \
7828 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7829 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7830 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7831 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7832 #define NV_NAN_QS_QUIET \
7833 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7834 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7835 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7836 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7837 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7838 * Note however that these do not check whether the nvp is a NaN. */
7839 #define NV_NAN_IS_QUIET(nvp) \
7840 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7841 #define NV_NAN_IS_SIGNALING(nvp) \
7842 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7843 #define NV_NAN_SET_QUIET(nvp) \
7844 (NV_NAN_QS_QUIET ? \
7845 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7846 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7847 #define NV_NAN_SET_SIGNALING(nvp) \
7848 (NV_NAN_QS_QUIET ? \
7849 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7850 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7851 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7853 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7855 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7856 * 0xFF means "don't go here".*/
7858 /* Shorthands to avoid typoses. */
7859 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7860 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7861 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7862 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7863 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7864 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7865 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7866 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7867 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7868 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7869 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7870 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7871 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7872 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7873 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7874 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7875 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7876 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7877 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7878 NV_NAN_PAYLOAD_PERM_7_TO_0
7879 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7880 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7881 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7882 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7883 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7884 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7885 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7886 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7888 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7889 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7890 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7891 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7892 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7893 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7894 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7895 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7896 # if LONG_DOUBLESIZE == 10
7897 # define NV_NAN_PAYLOAD_MASK \
7898 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7900 # define NV_NAN_PAYLOAD_PERM \
7901 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7902 # elif LONG_DOUBLESIZE == 12
7903 # define NV_NAN_PAYLOAD_MASK \
7904 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7905 0x00, 0x00, 0x00, 0x00
7906 # define NV_NAN_PAYLOAD_PERM \
7907 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7908 # elif LONG_DOUBLESIZE == 16
7909 # define NV_NAN_PAYLOAD_MASK \
7910 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7911 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7912 # define NV_NAN_PAYLOAD_PERM \
7913 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7914 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7916 # error "Unexpected x86 80-bit little-endian long double format"
7918 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7919 # if LONG_DOUBLESIZE == 10
7920 # define NV_NAN_PAYLOAD_MASK \
7921 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7923 # define NV_NAN_PAYLOAD_PERM \
7924 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7925 # elif LONG_DOUBLESIZE == 12
7926 # define NV_NAN_PAYLOAD_MASK \
7927 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7928 0xff, 0xff, 0x00, 0x00
7929 # define NV_NAN_PAYLOAD_PERM \
7930 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7931 # elif LONG_DOUBLESIZE == 16
7932 # define NV_NAN_PAYLOAD_MASK \
7933 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7934 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7935 # define NV_NAN_PAYLOAD_PERM \
7936 NV_NAN_PAYLOAD_PERM_7_TO_0, \
7937 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7939 # error "Unexpected x86 80-bit big-endian long double format"
7941 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7942 /* For double-double we assume only the first double (in LE or BE terms)
7943 * is used for NaN. */
7944 # define NV_NAN_PAYLOAD_MASK \
7945 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7946 # define NV_NAN_PAYLOAD_PERM \
7947 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7948 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7949 # define NV_NAN_PAYLOAD_MASK \
7950 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7951 # define NV_NAN_PAYLOAD_PERM \
7952 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7953 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7954 # define NV_NAN_PAYLOAD_MASK \
7955 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7956 # define NV_NAN_PAYLOAD_PERM \
7957 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7958 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7959 # define NV_NAN_PAYLOAD_MASK \
7960 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7961 # define NV_NAN_PAYLOAD_PERM \
7962 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7964 # error "Unexpected long double format"
7967 # ifdef USE_QUADMATH /* quadmath is not long double */
7968 # ifdef NV_LITTLE_ENDIAN
7969 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7970 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7971 # elif defined(NV_BIG_ENDIAN)
7972 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7973 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7975 # error "Unexpected quadmath format"
7977 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7978 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
7979 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
7980 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7981 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
7982 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
7983 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7984 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7985 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7986 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7987 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7988 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7989 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7990 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7991 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7992 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7993 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7994 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7995 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7996 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
7997 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
7998 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7999 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8000 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8002 # error "Unexpected double format"
8006 #endif /* DOUBLE_HAS_NAN */
8011 (KEEP THIS LAST IN perl.h!)
8053 so that Configure picks them up.
8055 (KEEP THIS LAST IN perl.h!)
8059 #endif /* Include guard */
8062 * ex: set ts=8 sts=4 sw=4 et: