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 /* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
120 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
124 #undef START_EXTERN_C
128 # define START_EXTERN_C extern "C" {
129 # define END_EXTERN_C }
130 # define EXTERN_C extern "C"
132 # define START_EXTERN_C
133 # define END_EXTERN_C
134 # define EXTERN_C extern
137 /* Fallback definitions in case we don't have definitions from config.h.
138 This should only matter for systems that don't use Configure and
139 haven't been modified to define PERL_STATIC_INLINE yet.
141 #if !defined(PERL_STATIC_INLINE)
142 # ifdef HAS_STATIC_INLINE
143 # define PERL_STATIC_INLINE static inline
145 # define PERL_STATIC_INLINE static
149 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
150 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
151 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
152 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
154 # define PERL_GET_VARS() PL_VarsPtr
158 /* this used to be off by default, now its on, see perlio.h */
159 #define PERLIO_FUNCS_CONST
161 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
163 #ifdef PERL_GLOBAL_STRUCT
164 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
169 #ifdef PERL_IMPLICIT_CONTEXT
170 # ifndef MULTIPLICITY
171 # define MULTIPLICITY
173 # define tTHX PerlInterpreter*
174 # define pTHX tTHX my_perl PERL_UNUSED_DECL
175 # define aTHX my_perl
176 # define aTHXa(a) aTHX = (tTHX)a
177 # ifdef PERL_GLOBAL_STRUCT
178 # define dTHXa(a) dVAR; pTHX = (tTHX)a
180 # define dTHXa(a) pTHX = (tTHX)a
182 # ifdef PERL_GLOBAL_STRUCT
183 # define dTHX dVAR; pTHX = PERL_GET_THX
185 # define dTHX pTHX = PERL_GET_THX
199 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
200 # define PERL_TRACK_MEMPOOL
203 # undef PERL_TRACK_MEMPOOL
207 # define dTHX_DEBUGGING dTHX
209 # define dTHX_DEBUGGING dNOOP
212 #define STATIC static
215 /* Do not use these macros. They were part of PERL_OBJECT, which was an
216 * implementation of multiplicity using C++ objects. They have been left
217 * here solely for the sake of XS code which has incorrectly
220 #define CPERLscope(x) x
221 #define CPERLarg void
224 #define PERL_OBJECT_THIS
225 #define _PERL_OBJECT_THIS
226 #define PERL_OBJECT_THIS_
227 #define CALL_FPTR(fptr) (*fptr)
228 #define MEMBER_TO_FPTR(name) name
229 #endif /* !PERL_CORE */
231 #define CALLRUNOPS PL_runops
233 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
235 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
236 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
237 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
238 (strbeg),(minend),(sv),(data),(flags))
239 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
240 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
241 (strend),(flags),(data))
242 #define CALLREG_INTUIT_STRING(prog) \
243 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
245 #define CALLREGFREE(prog) \
246 Perl_pregfree(aTHX_ (prog))
248 #define CALLREGFREE_PVT(prog) \
249 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
251 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
252 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
254 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
255 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
257 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
258 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
260 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
261 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
263 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
264 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
266 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
267 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
269 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
272 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
275 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
276 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
278 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
279 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
281 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
282 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
284 #define CALLREG_NAMED_BUFF_COUNT(rx) \
285 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
287 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
288 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
290 #define CALLREG_PACKAGE(rx) \
291 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
293 #if defined(USE_ITHREADS)
294 #define CALLREGDUPE(prog,param) \
295 Perl_re_dup(aTHX_ (prog),(param))
297 #define CALLREGDUPE_PVT(prog,param) \
298 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
307 * Because of backward compatibility reasons the PERL_UNUSED_DECL
308 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
310 * Note that there are C compilers such as MetroWerks CodeWarrior
311 * which do not have an "inlined" way (like the gcc __attribute__) of
312 * marking unused variables (they need e.g. a #pragma) and therefore
313 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
314 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
318 #if defined(__SYMBIAN32__) && defined(__GNUC__)
320 # define PERL_UNUSED_DECL
322 # define PERL_UNUSED_DECL __attribute__((unused))
326 #ifndef PERL_UNUSED_DECL
327 # if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || __GNUC__ >= 4)
328 # define PERL_UNUSED_DECL __attribute__unused__
330 # define PERL_UNUSED_DECL
335 * for silencing unused variables that are actually used most of the time,
336 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
337 * or variables/arguments that are used only in certain configurations.
339 #ifndef PERL_UNUSED_ARG
340 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
342 #ifndef PERL_UNUSED_VAR
343 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
346 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
347 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
349 # define PERL_UNUSED_CONTEXT
352 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
353 * g++ allows them but seems to have problems with them
354 * (insane errors ensue).
355 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
357 #if defined(PERL_GCC_PEDANTIC) || \
358 (defined(__GNUC__) && defined(__cplusplus) && \
359 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
360 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
361 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
365 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
366 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
368 * The main reason for this is that the combination of gcc -Wunused-result
369 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
370 * be silenced with casting to void. This causes trouble when the system
371 * header files use the attribute.
373 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
374 * is there for a good reason: you might lose success/failure information,
375 * or leak resources, or changes in resources.
377 * But sometimes you just want to ignore the return value, e.g. on
378 * codepaths soon ending up in abort, or in "best effort" attempts,
379 * or in situations where there is no good way to handle failures.
381 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
382 * another possibility is that you can capture the return value
383 * and use PERL_UNUSED_VAR on that.
385 * The __typeof__() is used instead of typeof() since typeof() is not
386 * available under strict C89, and because of compilers masquerading
387 * as gcc (clang and icc), we want exactly the gcc extension
388 * __typeof__ and nothing else.
390 #ifndef PERL_UNUSED_RESULT
391 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
392 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
394 # define PERL_UNUSED_RESULT(v) ((void)(v))
398 /* on gcc (and clang), specify that a warning should be temporarily
401 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
403 * GCC_DIAG_RESTORE_DECL;
405 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
407 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
408 * clang only pretends to be GCC 4.2, but still supports push/pop.
410 * Note on usage: all macros must be used at a place where a declaration
411 * or statement can occur, i.e., not in the middle of an expression.
412 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
413 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
414 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
415 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
416 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
417 * and behave syntactically as statements (like NOOP).
421 #if defined(__clang__) || defined(__clang) || \
422 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
423 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
424 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
425 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
426 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
427 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
429 # define GCC_DIAG_IGNORE(w)
430 # define GCC_DIAG_RESTORE
432 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
433 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
434 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
435 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
436 /* for clang specific pragmas */
437 #if defined(__clang__) || defined(__clang)
438 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
439 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
440 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
441 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
443 # define CLANG_DIAG_IGNORE(w)
444 # define CLANG_DIAG_RESTORE
446 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
447 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
448 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
449 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
451 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
452 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
453 __pragma(warning(disable : x))
454 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
456 # define MSVC_DIAG_IGNORE(x)
457 # define MSVC_DIAG_RESTORE
459 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
460 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
461 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
462 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
464 #define NOOP /*EMPTY*/(void)0
465 #define dNOOP struct Perl___notused_struct
468 /* Don't bother defining tTHX ; using it outside
469 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
475 # define aTHXa(a) NOOP
476 # define dTHXa(a) dNOOP
494 /* these are only defined for compatibility; should not be used internally */
495 #if !defined(pTHXo) && !defined(PERL_CORE)
497 # define pTHXo_ pTHX_
499 # define aTHXo_ aTHX_
501 # define dTHXoa(x) dTHXa(x)
505 # define pTHXx PerlInterpreter *my_perl
506 # define pTHXx_ pTHXx,
507 # define aTHXx my_perl
508 # define aTHXx_ aTHXx,
512 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
513 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
514 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
515 #ifdef PERL_IMPLICIT_SYS
516 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
517 # define dTHXs dVAR; dTHX
522 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
529 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
530 # ifndef PERL_USE_GCC_BRACE_GROUPS
531 # define PERL_USE_GCC_BRACE_GROUPS
536 * STMT_START { statements; } STMT_END;
537 * can be used as a single statement, as in
538 * if (x) STMT_START { ... } STMT_END; else ...
540 * Trying to select a version that gives no warnings...
542 #if !(defined(STMT_START) && defined(STMT_END))
543 # ifdef PERL_USE_GCC_BRACE_GROUPS
544 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
547 # define STMT_START do
548 # define STMT_END while (0)
552 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
553 # define BYTEORDER 0x1234
556 /* Overall memory policy? */
561 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
568 * The following contortions are brought to you on behalf of all the
569 * standards, semi-standards, de facto standards, not-so-de-facto standards
570 * of the world, as well as all the other botches anyone ever thought of.
571 * The basic theory is that if we work hard enough here, the rest of the
572 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
575 /* define this once if either system, instead of cluttering up the src */
576 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
580 /* These exist only for back-compat with XS modules. */
583 #define CAN_PROTOTYPE
590 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
591 * you get a perl without taint support, but doubtlessly with a lesser
592 * degree of support. Do not do so unless you know exactly what it means
593 * technically, have a good reason to do so, and know exactly how the
594 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
595 * a potential security risk due to flat out ignoring the security-relevant
596 * taint flags. This being said, a perl without taint support compiled in
597 * has marginal run-time performance benefits.
598 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
599 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
600 * silently ignores -t/-T instead of throwing an exception.
602 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
603 * voids your nonexistent warranty!
605 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
606 # define NO_TAINT_SUPPORT 1
609 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
610 * operations into no-ops for a very modest speed-up. Enable only if you
611 * know what you're doing: tests and CPAN modules' tests are bound to fail.
613 #ifdef NO_TAINT_SUPPORT
615 # define TAINT_NOT NOOP
616 # define TAINT_IF(c) NOOP
617 # define TAINT_ENV() NOOP
618 # define TAINT_PROPER(s) NOOP
619 # define TAINT_set(s) NOOP
621 # define TAINTING_get 0
622 # define TAINTING_set(s) NOOP
623 # define TAINT_WARN_get 0
624 # define TAINT_WARN_set(s) NOOP
626 /* Set to tainted if we are running under tainting mode */
627 # define TAINT (PL_tainted = PL_tainting)
629 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
630 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
631 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
632 /* croak or warn if tainting */
633 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
634 taint_proper(NULL, s); \
636 # define TAINT_set(s) (PL_tainted = (s))
637 # define TAINT_get (PL_tainted) /* Is something tainted? */
638 # define TAINTING_get (PL_tainting) /* Is taint checking enabled? */
639 # define TAINTING_set(s) (PL_tainting = (s))
640 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
644 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
647 /* flags used internally only within pp_subst and pp_substcont */
649 # define SUBST_TAINT_STR 1 /* string tainted */
650 # define SUBST_TAINT_PAT 2 /* pattern tainted */
651 # define SUBST_TAINT_REPL 4 /* replacement tainted */
652 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
653 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
656 /* XXX All process group stuff is handled in pp_sys.c. Should these
657 defines move there? If so, I could simplify this a lot. --AD 9/96.
659 /* Process group stuff changed from traditional BSD to POSIX.
660 perlfunc.pod documents the traditional BSD-style syntax, so we'll
661 try to preserve that, if possible.
664 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
665 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
666 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
667 #elif defined(HAS_SETPGRP2)
668 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
670 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
671 # define HAS_SETPGRP /* Well, effectively it does . . . */
674 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
675 our life easier :-) so we'll try it.
678 # define BSD_GETPGRP(pid) getpgid((pid))
679 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
680 # define BSD_GETPGRP(pid) getpgrp((pid))
681 #elif defined(HAS_GETPGRP2)
682 # define BSD_GETPGRP(pid) getpgrp2((pid))
684 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
685 # define HAS_GETPGRP /* Well, effectively it does . . . */
688 /* These are not exact synonyms, since setpgrp() and getpgrp() may
689 have different behaviors, but perl.h used to define USE_BSDPGRP
690 (prior to 5.003_05) so some extension might depend on it.
692 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
698 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
699 pthread.h must be included before all other header files.
701 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
702 # include <pthread.h>
705 #include <sys/types.h>
717 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
730 # include <xlocale.h>
733 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
734 * functions are available, or 2) just the setlocale() function. This logic is
735 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
737 #if ! defined(NO_LOCALE)
739 # if ! defined(NO_POSIX_2008_LOCALE) \
740 && defined(HAS_NEWLOCALE) \
741 && defined(HAS_USELOCALE) \
742 && defined(HAS_DUPLOCALE) \
743 && defined(HAS_FREELOCALE) \
744 && defined(LC_ALL_MASK)
746 /* For simplicity, the code is written to assume that any platform advanced
747 * enough to have the Posix 2008 locale functions has LC_ALL. The final
748 * test above makes sure that assumption is valid */
750 # define HAS_POSIX_2008_LOCALE
752 # elif defined(HAS_SETLOCALE)
758 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
760 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
761 && defined(HAS_STRXFRM)
762 # define USE_LOCALE_COLLATE
764 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
765 # define USE_LOCALE_CTYPE
767 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
768 # define USE_LOCALE_NUMERIC
770 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
771 # define USE_LOCALE_MESSAGES
773 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
774 # define USE_LOCALE_MONETARY
776 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
777 # define USE_LOCALE_TIME
779 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
780 # define USE_LOCALE_ADDRESS
782 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
783 # define USE_LOCALE_IDENTIFICATION
785 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
786 # define USE_LOCALE_MEASUREMENT
788 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
789 # define USE_LOCALE_PAPER
791 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
792 # define USE_LOCALE_TELEPHONE
795 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
796 * changes here MUST also be made there */
798 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
799 # define USE_POSIX_2008_LOCALE
800 # ifndef USE_THREAD_SAFE_LOCALE
801 # define USE_THREAD_SAFE_LOCALE
804 * -DUSE_THREAD_SAFE_LOCALE, will do so even
805 * on unthreaded builds */
806 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
807 && ( defined(HAS_POSIX_2008_LOCALE) \
808 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
809 && ! defined(NO_THREAD_SAFE_LOCALE)
810 # ifndef USE_THREAD_SAFE_LOCALE
811 # define USE_THREAD_SAFE_LOCALE
813 # ifdef HAS_POSIX_2008_LOCALE
814 # define USE_POSIX_2008_LOCALE
819 /* Microsoft documentation reads in the change log for VS 2015:
820 * "The localeconv function declared in locale.h now works correctly when
821 * per-thread locale is enabled. In previous versions of the library, this
822 * function would return the lconv data for the global locale, not the
825 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
826 # define TS_W32_BROKEN_LOCALECONV
832 # ifdef PARAM_NEEDS_TYPES
833 # include <sys/types.h>
835 # include <sys/param.h>
838 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
839 value something like 199306. This may be useful if no more-specific
840 feature test is available.
848 /* Use all the "standard" definitions */
851 /* If this causes problems, set i_unistd=undef in the hint file. */
853 # if defined(__amigaos4__)
855 # include <netinet/in.h>
859 # if defined(__amigaos4__)
860 /* Under AmigaOS 4 newlib.library provides an environ. However using
861 * it doesn't give us enough control over inheritance of variables by
862 * subshells etc. so replace with custom version based on abc-shell
864 extern char **myenviron;
866 # define environ myenviron
872 # include <sys/wait.h>
876 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
879 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
880 EXTERN_C int syscall(int, ...);
883 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
884 EXTERN_C int usleep(unsigned int);
887 /* macros for correct constant construction. These are in C99 <stdint.h>
888 * (so they will not be available in strict C89 mode), but they are nice, so
889 * let's define them if necessary. */
892 # define UINT16_C(x) ((U16_TYPE)x##U)
894 # define UINT16_C(x) ((U16_TYPE)x##UL)
900 # define UINT32_C(x) ((U32_TYPE)x##U)
902 # define UINT32_C(x) ((U32_TYPE)x##UL)
907 typedef intmax_t PERL_INTMAX_T;
908 typedef uintmax_t PERL_UINTMAX_T;
911 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
912 * actually mean what it has always been documented to mean (see RT #119753)
913 * and is explicitly turned off outside of core with dire warnings about
914 * removing the undef. */
916 #if defined(QUADKIND)
918 # undef PeRl_UINT64_C
919 /* Prefer the native integer types (int and long) over long long
920 * (which is not C89) and Win32-specific __int64. */
921 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
922 # define PeRl_INT64_C(c) (c)
923 # define PeRl_UINT64_C(c) CAT2(c,U)
925 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
926 # define PeRl_INT64_C(c) CAT2(c,L)
927 # define PeRl_UINT64_C(c) CAT2(c,UL)
929 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
930 # define PeRl_INT64_C(c) CAT2(c,LL)
931 # define PeRl_UINT64_C(c) CAT2(c,ULL)
933 # if QUADKIND == QUAD_IS___INT64
934 # define PeRl_INT64_C(c) CAT2(c,I64)
935 # define PeRl_UINT64_C(c) CAT2(c,UI64)
937 # ifndef PeRl_INT64_C
938 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
939 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
941 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
942 * not fly with C89-pedantic gcc, so let's undefine them first so that
943 * we can redefine them with our native integer preferring versions. */
944 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
949 # define INT64_C(c) PeRl_INT64_C(c)
952 # define UINT64_C(c) PeRl_UINT64_C(c)
956 typedef I64TYPE PERL_INTMAX_T;
957 typedef U64TYPE PERL_UINTMAX_T;
960 # define INTMAX_C(c) INT64_C(c)
963 # define UINTMAX_C(c) UINT64_C(c)
966 #else /* below QUADKIND is undefined */
968 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
970 typedef I32TYPE PERL_INTMAX_T;
971 typedef U32TYPE PERL_UINTMAX_T;
974 # define INTMAX_C(c) INT32_C(c)
977 # define UINTMAX_C(c) UINT32_C(c)
980 #endif /* no QUADKIND */
984 /* byte-swapping functions for big-/little-endian conversion */
985 # define _swab_16_(x) ((U16)( \
986 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
987 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
989 # define _swab_32_(x) ((U32)( \
990 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
991 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
992 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
993 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
996 # define _swab_64_(x) ((U64)( \
997 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
998 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
999 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1000 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1001 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1002 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1003 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1004 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1007 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1008 at least on FreeBSD. YMMV, so experiment. */
1009 #ifndef PERL_ARENA_SIZE
1010 #define PERL_ARENA_SIZE 4080
1013 /* Maximum level of recursion */
1014 #ifndef PERL_SUB_DEPTH_WARN
1015 #define PERL_SUB_DEPTH_WARN 100
1018 #endif /* PERL_CORE */
1020 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1021 * It determines the size of local arrays in S_maybe_multiconcat() and
1024 #define PERL_MULTICONCAT_MAXARG 64
1026 /* The indexes of fields of a multiconcat aux struct.
1027 * The fixed fields are followed by nargs+1 const segment lengths,
1028 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1031 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1032 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1033 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1034 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1035 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1036 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1037 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1038 multiconcat header */
1040 /* We no longer default to creating a new SV for GvSV.
1041 Do this before embed. */
1042 #ifndef PERL_CREATE_GVSV
1043 # ifndef PERL_DONT_CREATE_GVSV
1044 # define PERL_DONT_CREATE_GVSV
1048 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1049 #define PERL_USES_PL_PIDSTATUS
1052 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
1053 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1056 #define MEM_SIZE Size_t
1058 /* Round all values passed to malloc up, by default to a multiple of
1061 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1062 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1065 /* sv_grow() will expand strings by at least a certain percentage of
1066 the previously *used* length to avoid excessive calls to realloc().
1067 The default is 25% of the current length.
1069 #ifndef PERL_STRLEN_EXPAND_SHIFT
1070 # define PERL_STRLEN_EXPAND_SHIFT 2
1073 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1074 * onwards) when building Socket.xs, but we can just use a different definition
1075 * for STRUCT_OFFSET instead. */
1076 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1077 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1079 # include <stddef.h>
1080 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1083 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1084 * in C89, but apparently there are platforms where it doesn't exist. See
1085 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1087 #ifdef PERL_GCC_PEDANTIC
1088 # undef HAS_PTRDIFF_T
1091 #ifdef HAS_PTRDIFF_T
1092 # define Ptrdiff_t ptrdiff_t
1094 # define Ptrdiff_t SSize_t
1097 #ifndef __SYMBIAN32__
1098 # include <string.h>
1101 /* This comes after <stdlib.h> so we don't try to change the standard
1102 * library prototypes; we'll use our own in proto.h instead. */
1105 # ifdef PERL_POLLUTE_MALLOC
1106 # ifndef PERL_EXTMALLOC_DEF
1107 # define Perl_malloc malloc
1108 # define Perl_calloc calloc
1109 # define Perl_realloc realloc
1110 # define Perl_mfree free
1113 # define EMBEDMYMALLOC /* for compatibility */
1116 # define safemalloc Perl_malloc
1117 # define safecalloc Perl_calloc
1118 # define saferealloc Perl_realloc
1119 # define safefree Perl_mfree
1120 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1121 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1124 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1125 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1126 # define panic_write2(s) write(2, s, strlen(s))
1127 # define CHECK_MALLOC_TAINT(newval) \
1128 CHECK_MALLOC_TOO_LATE_FOR_( \
1130 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1132 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1133 if (doing_taint(argc,argv,env)) { \
1134 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1136 #else /* MYMALLOC */
1137 # define safemalloc safesysmalloc
1138 # define safecalloc safesyscalloc
1139 # define saferealloc safesysrealloc
1140 # define safefree safesysfree
1141 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1142 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1143 # define MALLOC_CHECK_TAINT(argc,argv,env)
1144 #endif /* MYMALLOC */
1146 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1147 #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)
1148 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1149 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1150 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1153 # define memzero(d,l) memset(d,0,l)
1157 # include <netinet/in.h>
1161 # include <arpa/inet.h>
1165 # include <sys/stat.h>
1168 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1169 This definition should ideally go into win32/win32.h, but S_IFIFO is
1170 used later here in perl.h before win32/win32.h is being included. */
1171 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1172 # define S_IFIFO _S_IFIFO
1175 /* The stat macros for Unisoft System V/88 (and derivatives
1176 like UTekV) are broken, sometimes giving false positives. Undefine
1177 them here and let the code below set them to proper values.
1179 The ghs macro stands for GreenHills Software C-1.8.5 which
1180 is the C compiler for sysV88 and the various derivatives.
1181 This header file bug is corrected in gcc-2.5.8 and later versions.
1182 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1184 #if defined(m88k) && defined(ghs)
1196 # ifdef I_SYS_TIME_KERNEL
1199 # include <sys/time.h>
1200 # ifdef I_SYS_TIME_KERNEL
1205 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1206 # include <sys/times.h>
1211 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1212 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1215 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1216 # include <sys/socket.h>
1217 # if defined(USE_SOCKS) && defined(I_SOCKS)
1218 # if !defined(INCLUDE_PROTOTYPES)
1219 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1220 # define PERL_SOCKS_NEED_PROTOTYPES
1223 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1224 # undef INCLUDE_PROTOTYPES
1225 # undef PERL_SOCKS_NEED_PROTOTYPES
1236 # include <net/errno.h>
1241 /* sockatmark() is so new (2001) that many places might have it hidden
1242 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1243 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1244 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1245 # if defined(__THROW) && defined(__GLIBC__)
1246 int sockatmark(int) __THROW;
1248 int sockatmark(int);
1252 #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. */
1253 EXTERN_C int fchdir(int);
1254 EXTERN_C int flock(int, int);
1255 EXTERN_C int fseeko(FILE *, off_t, int);
1256 EXTERN_C off_t ftello(FILE *);
1259 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1260 EXTERN_C char *crypt(const char *, const char *);
1263 #if defined(__cplusplus) && defined(__CYGWIN__)
1264 EXTERN_C char *crypt(const char *, const char *);
1270 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1272 Set C<errno>, and on VMS set C<vaxc$errno>.
1274 =for apidoc mn|void|dSAVEDERRNO
1276 Declare variables needed to save C<errno> and any operating system
1277 specific error number.
1279 =for apidoc mn|void|dSAVE_ERRNO
1281 Declare variables needed to save C<errno> and any operating system
1282 specific error number, and save them for optional later restoration
1283 by C<RESTORE_ERRNO>.
1285 =for apidoc mn|void|SAVE_ERRNO
1287 Save C<errno> and any operating system specific error number for
1288 optional later restoration by C<RESTORE_ERRNO>. Requires
1289 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1291 =for apidoc mn|void|RESTORE_ERRNO
1293 Restore C<errno> and any operating system specific error number that
1294 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1300 # undef SETERRNO /* SOCKS might have defined this */
1304 # define SETERRNO(errcode,vmserrcode) \
1306 set_errno(errcode); \
1307 set_vaxc_errno(vmserrcode); \
1309 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1310 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1311 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1312 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1314 # define LIB_INVARG LIB$_INVARG
1315 # define RMS_DIR RMS$_DIR
1316 # define RMS_FAC RMS$_FAC
1317 # define RMS_FEX RMS$_FEX
1318 # define RMS_FNF RMS$_FNF
1319 # define RMS_IFI RMS$_IFI
1320 # define RMS_ISI RMS$_ISI
1321 # define RMS_PRV RMS$_PRV
1322 # define SS_ACCVIO SS$_ACCVIO
1323 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1324 # define SS_IVCHAN SS$_IVCHAN
1325 # define SS_NORMAL SS$_NORMAL
1326 # define SS_NOPRIV SS$_NOPRIV
1327 # define SS_BUFFEROVF SS$_BUFFEROVF
1329 # define LIB_INVARG 0
1337 # define SS_ACCVIO 0
1338 # define SS_DEVOFFLINE 0
1339 # define SS_IVCHAN 0
1340 # define SS_NORMAL 0
1341 # define SS_NOPRIV 0
1342 # define SS_BUFFEROVF 0
1346 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1347 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1348 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1349 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1353 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1354 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1355 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1356 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1360 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1364 # define dSAVEDERRNO int saved_errno
1365 # define dSAVE_ERRNO int saved_errno = errno
1366 # define SAVE_ERRNO (saved_errno = errno)
1367 # define RESTORE_ERRNO (errno = saved_errno)
1371 =head1 Warning and Dieing
1373 =for apidoc Amn|SV *|ERRSV
1375 Returns the SV for C<$@>, creating it if needed.
1377 =for apidoc Am|void|CLEAR_ERRSV
1379 Clear the contents of C<$@>, setting it to the empty string.
1381 This replaces any read-only SV with a fresh SV and removes any magic.
1386 #define ERRSV GvSVn(PL_errgv)
1388 /* contains inlined gv_add_by_type */
1389 #define CLEAR_ERRSV() STMT_START { \
1390 SV ** const svp = &GvSV(PL_errgv); \
1392 *svp = newSVpvs(""); \
1393 } else if (SvREADONLY(*svp)) { \
1394 SvREFCNT_dec_NN(*svp); \
1395 *svp = newSVpvs(""); \
1397 SV *const errsv = *svp; \
1399 SvPOK_only(errsv); \
1400 if (SvMAGICAL(errsv)) { \
1408 # define DEFSV (0 + GvSVn(PL_defgv))
1409 # define DEFSV_set(sv) \
1410 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1411 # define SAVE_DEFSV \
1413 save_gp(PL_defgv, 0), \
1414 GvINTRO_off(PL_defgv), \
1415 SAVEGENERICSV(GvSV(PL_defgv)), \
1416 GvSV(PL_defgv) = NULL \
1419 # define DEFSV GvSVn(PL_defgv)
1420 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1421 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1425 extern int errno; /* ANSI allows errno to be an lvalue expr.
1426 * For example in multithreaded environments
1427 * something like this might happen:
1428 * extern int *_errno(void);
1429 * #define errno (*_errno()) */
1432 #define UNKNOWN_ERRNO_MSG "(unknown)"
1435 #define Strerror(e) strerror((e), vaxc$errno)
1437 #define Strerror(e) strerror(e)
1442 # include <sys/ioctl.h>
1446 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1447 # ifdef HAS_SOCKETPAIR
1448 # undef HAS_SOCKETPAIR
1455 #ifndef HAS_SOCKETPAIR
1457 # define socketpair Perl_my_socketpair
1462 # define htoni htons
1463 # define ntohi ntohs
1465 # define htoni htonl
1466 # define ntohi ntohl
1469 /* Configure already sets Direntry_t */
1470 #if defined(I_DIRENT)
1471 # include <dirent.h>
1472 #elif defined(I_SYS_NDIR)
1473 # include <sys/ndir.h>
1474 #elif defined(I_SYS_DIR)
1475 # include <sys/dir.h>
1479 * The following gobbledygook brought to you on behalf of __STDC__.
1480 * (I could just use #ifndef __STDC__, but this is more bulletproof
1481 * in the face of half-implementations.)
1484 #if defined(I_SYSMODE)
1485 #include <sys/mode.h>
1490 # define S_IFMT _S_IFMT
1492 # define S_IFMT 0170000
1497 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1501 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1506 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1508 # define S_ISBLK(m) (0)
1513 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1518 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1520 # define S_ISFIFO(m) (0)
1526 # define S_ISLNK(m) _S_ISLNK(m)
1527 # elif defined(_S_IFLNK)
1528 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1529 # elif defined(S_IFLNK)
1530 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1532 # define S_ISLNK(m) (0)
1538 # define S_ISSOCK(m) _S_ISSOCK(m)
1539 # elif defined(_S_IFSOCK)
1540 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1541 # elif defined(S_IFSOCK)
1542 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1544 # define S_ISSOCK(m) (0)
1550 # define S_IRUSR S_IREAD
1551 # define S_IWUSR S_IWRITE
1552 # define S_IXUSR S_IEXEC
1554 # define S_IRUSR 0400
1555 # define S_IWUSR 0200
1556 # define S_IXUSR 0100
1562 # define S_IRGRP (S_IRUSR>>3)
1563 # define S_IWGRP (S_IWUSR>>3)
1564 # define S_IXGRP (S_IXUSR>>3)
1566 # define S_IRGRP 0040
1567 # define S_IWGRP 0020
1568 # define S_IXGRP 0010
1574 # define S_IROTH (S_IRUSR>>6)
1575 # define S_IWOTH (S_IWUSR>>6)
1576 # define S_IXOTH (S_IXUSR>>6)
1578 # define S_IROTH 0040
1579 # define S_IWOTH 0020
1580 # define S_IXOTH 0010
1585 # define S_ISUID 04000
1589 # define S_ISGID 02000
1593 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1597 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1601 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1604 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1605 * which would get included through <sys/file.h >, but that is 3000
1606 * lines in the future. --jhi */
1608 #if !defined(S_IREAD) && !defined(__HAIKU__)
1609 # define S_IREAD S_IRUSR
1612 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1613 # define S_IWRITE S_IWUSR
1617 # define S_IEXEC S_IXUSR
1620 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1621 # define SLOPPYDIVIDE
1628 /* This used to be conditionally defined based on whether we had a sprintf()
1629 * that correctly returns the string length (as required by C89), but we no
1630 * longer need that. XS modules can (and do) use this name, so it must remain
1631 * a part of the API that's visible to modules. But we no longer document it
1632 * either (because using sprintf() rather than snprintf() is almost always
1634 #define my_sprintf sprintf
1637 * If we have v?snprintf() and the C99 variadic macros, we can just
1638 * use just the v?snprintf(). It is nice to try to trap the buffer
1639 * overflow, however, so if we are DEBUGGING, and we cannot use the
1640 * gcc statement expressions, then use the function wrappers which try
1641 * to trap the overflow. If we can use the gcc statement expressions,
1642 * we can try that even with the version that uses the C99 variadic
1646 /* Note that we do not check against snprintf()/vsnprintf() returning
1647 * negative values because that is non-standard behaviour and we use
1648 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1649 * that should be true only if the snprintf()/vsnprintf() are true
1650 * to the standard. */
1652 #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
1655 # define my_snprintf Perl_my_snprintf
1656 # define PERL_MY_SNPRINTF_GUARDED
1657 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1658 # ifdef PERL_USE_GCC_BRACE_GROUPS
1659 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1660 # define PERL_MY_SNPRINTF_GUARDED
1662 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1665 # define my_snprintf Perl_my_snprintf
1666 # define PERL_MY_SNPRINTF_GUARDED
1669 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1670 * dies if called under USE_QUADMATH. */
1671 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1672 # ifdef PERL_USE_GCC_BRACE_GROUPS
1673 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1674 # define PERL_MY_VSNPRINTF_GUARDED
1676 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1679 # define my_vsnprintf Perl_my_vsnprintf
1680 # define PERL_MY_VSNPRINTF_GUARDED
1683 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1684 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1685 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1686 * completely ignore it: otherwise you cannot know whether your output
1689 * int len = my_sprintf(buf, max, ...);
1690 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1692 * The trick is that in certain platforms [a] the my_sprintf() already
1693 * contains the sanity check, while in certain platforms [b] it needs
1694 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1695 * platforms the POST_GUARD actually does nothing since the check has
1696 * already been done. Watch out for the max being the same in both calls.
1698 * If you actually use the snprintf/vsnprintf return value already,
1699 * you assumedly are checking its validity somehow. But you can
1700 * insert the POST_GUARD() also in that case. */
1702 #ifndef PERL_MY_SNPRINTF_GUARDED
1703 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1705 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1708 #ifndef PERL_MY_VSNPRINTF_GUARDED
1709 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1711 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1715 # define my_strlcat strlcat
1718 #if defined(PERL_CORE) || defined(PERL_EXT)
1720 # define my_memrchr memrchr
1722 # define my_memrchr S_my_memrchr
1727 # define my_strlcpy strlcpy
1731 # define my_strnlen strnlen
1735 The IV type is supposed to be long enough to hold any integral
1737 --Andy Dougherty August 1996
1743 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1744 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1745 # define IV_MAX INT64_MAX
1746 # define IV_MIN INT64_MIN
1747 # define UV_MAX UINT64_MAX
1749 # define UINT64_MIN 0
1751 # define UV_MIN UINT64_MIN
1753 # define IV_MAX PERL_QUAD_MAX
1754 # define IV_MIN PERL_QUAD_MIN
1755 # define UV_MAX PERL_UQUAD_MAX
1756 # define UV_MIN PERL_UQUAD_MIN
1761 # if defined(INT32_MAX) && IVSIZE == 4
1762 # define IV_MAX INT32_MAX
1763 # define IV_MIN INT32_MIN
1764 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1765 # define UV_MAX UINT32_MAX
1767 # define UV_MAX 4294967295U
1770 # define UINT32_MIN 0
1772 # define UV_MIN UINT32_MIN
1774 # define IV_MAX PERL_LONG_MAX
1775 # define IV_MIN PERL_LONG_MIN
1776 # define UV_MAX PERL_ULONG_MAX
1777 # define UV_MIN PERL_ULONG_MIN
1788 #if !defined(PERL_CORE) || defined(USING_MSVC6)
1789 /* We think that removing this decade-old undef this will cause too much
1790 breakage on CPAN for too little gain. (See RT #119753)
1791 However, we do need HAS_QUAD in the core for use by the drand48 code,
1792 but not for Win32 VC6 because it has poor __int64 support. */
1798 #define Size_t_MAX (~(Size_t)0)
1799 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1801 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1802 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1804 #ifndef NO_PERL_PRESERVE_IVUV
1805 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1809 * The macros INT2PTR and NUM2PTR are (despite their names)
1810 * bi-directional: they will convert int/float to or from pointers.
1811 * However the conversion to int/float are named explicitly:
1812 * PTR2IV, PTR2UV, PTR2NV.
1814 * For int conversions we do not need two casts if pointers are
1815 * the same size as IV and UV. Otherwise we need an explicit
1816 * cast (PTRV) to avoid compiler warnings.
1818 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1820 # define INT2PTR(any,d) (any)(d)
1821 #elif PTRSIZE == LONGSIZE
1822 # define PTRV unsigned long
1823 # define PTR2ul(p) (unsigned long)(p)
1825 # define PTRV unsigned
1829 # define INT2PTR(any,d) (any)(PTRV)(d)
1833 # define PTR2ul(p) INT2PTR(unsigned long,p)
1836 #define NUM2PTR(any,d) (any)(PTRV)(d)
1837 #define PTR2IV(p) INT2PTR(IV,p)
1838 #define PTR2UV(p) INT2PTR(UV,p)
1839 #define PTR2NV(p) NUM2PTR(NV,p)
1840 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1842 /* According to strict ANSI C89 one cannot freely cast between
1843 * data pointers and function (code) pointers. There are at least
1844 * two ways around this. One (used below) is to do two casts,
1845 * first the other pointer to an (unsigned) integer, and then
1846 * the integer to the other pointer. The other way would be
1847 * to use unions to "overlay" the pointers. For an example of
1848 * the latter technique, see union dirpu in struct xpvio in sv.h.
1849 * The only feasible use is probably temporarily storing
1850 * function pointers in a data pointer (such as a void pointer). */
1852 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1853 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1855 #ifdef USE_LONG_DOUBLE
1856 # if LONG_DOUBLESIZE == DOUBLESIZE
1857 # define LONG_DOUBLE_EQUALS_DOUBLE
1858 # undef USE_LONG_DOUBLE /* Ouch! */
1862 /* The following is all to get LDBL_DIG, in order to pick a nice
1863 default value for printing floating point numbers in Gconvert.
1866 #ifndef HAS_LDBL_DIG
1867 # if LONG_DOUBLESIZE == 10
1868 # define LDBL_DIG 18 /* assume IEEE */
1869 # elif LONG_DOUBLESIZE == 12
1870 # define LDBL_DIG 18 /* gcc? */
1871 # elif LONG_DOUBLESIZE == 16
1872 # define LDBL_DIG 33 /* assume IEEE */
1873 # elif LONG_DOUBLESIZE == DOUBLESIZE
1874 # define LDBL_DIG DBL_DIG /* bummer */
1881 # include <ieeefp.h>
1885 /* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1886 * and for example NaN < IV_MIN. */
1887 # define NAN_COMPARE_BROKEN
1889 #if defined(__DECC) && defined(__osf__)
1890 /* Also Tru64 cc has broken NaN comparisons. */
1891 # define NAN_COMPARE_BROKEN
1894 # define NAN_COMPARE_BROKEN
1897 #ifdef USE_LONG_DOUBLE
1899 # include <sunmath.h>
1901 # if defined(LDBL_DIG)
1902 # define NV_DIG LDBL_DIG
1903 # ifdef LDBL_MANT_DIG
1904 # define NV_MANT_DIG LDBL_MANT_DIG
1907 # define NV_MIN LDBL_MIN
1910 # define NV_MAX LDBL_MAX
1912 # ifdef LDBL_MIN_EXP
1913 # define NV_MIN_EXP LDBL_MIN_EXP
1915 # ifdef LDBL_MAX_EXP
1916 # define NV_MAX_EXP LDBL_MAX_EXP
1918 # ifdef LDBL_MIN_10_EXP
1919 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
1921 # ifdef LDBL_MAX_10_EXP
1922 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
1924 # ifdef LDBL_EPSILON
1925 # define NV_EPSILON LDBL_EPSILON
1928 # define NV_MAX LDBL_MAX
1929 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
1930 # elif defined(HUGE_VALL)
1931 # define NV_MAX HUGE_VALL
1934 # if defined(HAS_SQRTL)
1935 # define Perl_acos acosl
1936 # define Perl_asin asinl
1937 # define Perl_atan atanl
1938 # define Perl_atan2 atan2l
1939 # define Perl_ceil ceill
1940 # define Perl_cos cosl
1941 # define Perl_cosh coshl
1942 # define Perl_exp expl
1943 /* no Perl_fabs, but there's PERL_ABS */
1944 # define Perl_floor floorl
1945 # define Perl_fmod fmodl
1946 # define Perl_log logl
1947 # define Perl_log10 log10l
1948 # define Perl_pow powl
1949 # define Perl_sin sinl
1950 # define Perl_sinh sinhl
1951 # define Perl_sqrt sqrtl
1952 # define Perl_tan tanl
1953 # define Perl_tanh tanhl
1955 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1958 # define Perl_modf(x,y) modfl(x,y)
1959 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1960 prototype in <math.h> */
1961 # ifndef HAS_MODFL_PROTO
1962 EXTERN_C long double modfl(long double, long double *);
1964 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
1965 extern long double Perl_my_modfl(long double x, long double *ip);
1966 # define Perl_modf(x,y) Perl_my_modfl(x,y)
1971 # define Perl_frexp(x,y) frexpl(x,y)
1972 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1973 extern long double Perl_my_frexpl(long double x, int *e);
1974 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1979 # define Perl_ldexp(x, y) ldexpl(x,y)
1980 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
1981 # define Perl_ldexp(x,y) scalbnl(x,y)
1985 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
1986 # define Perl_isnan(x) isnanl(x)
1987 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1988 # define Perl_isnan(x) isnan(x)
1992 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
1993 # define Perl_isinf(x) isinfl(x)
1994 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1995 # define Perl_isinf(x) isinf(x)
1996 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
1997 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2000 # ifndef Perl_isfinite
2001 # define Perl_isfinite(x) Perl_isfinitel(x)
2003 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2004 # include <quadmath.h>
2005 # define NV_DIG FLT128_DIG
2006 # define NV_MANT_DIG FLT128_MANT_DIG
2007 # define NV_MIN FLT128_MIN
2008 # define NV_MAX FLT128_MAX
2009 # define NV_MIN_EXP FLT128_MIN_EXP
2010 # define NV_MAX_EXP FLT128_MAX_EXP
2011 # define NV_EPSILON FLT128_EPSILON
2012 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2013 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2014 # define Perl_acos acosq
2015 # define Perl_asin asinq
2016 # define Perl_atan atanq
2017 # define Perl_atan2 atan2q
2018 # define Perl_ceil ceilq
2019 # define Perl_cos cosq
2020 # define Perl_cosh coshq
2021 # define Perl_exp expq
2022 /* no Perl_fabs, but there's PERL_ABS */
2023 # define Perl_floor floorq
2024 # define Perl_fmod fmodq
2025 # define Perl_log logq
2026 # define Perl_log10 log10q
2027 # define Perl_signbit signbitq
2028 # define Perl_pow powq
2029 # define Perl_sin sinq
2030 # define Perl_sinh sinhq
2031 # define Perl_sqrt sqrtq
2032 # define Perl_tan tanq
2033 # define Perl_tanh tanhq
2034 # define Perl_modf(x,y) modfq(x,y)
2035 # define Perl_frexp(x,y) frexpq(x,y)
2036 # define Perl_ldexp(x, y) ldexpq(x,y)
2037 # define Perl_isinf(x) isinfq(x)
2038 # define Perl_isnan(x) isnanq(x)
2039 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2040 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2041 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2042 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2043 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2044 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2045 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2047 # define NV_DIG DBL_DIG
2048 # define NV_MANT_DIG DBL_MANT_DIG
2049 # define NV_MIN DBL_MIN
2050 # define NV_MAX DBL_MAX
2051 # define NV_MIN_EXP DBL_MIN_EXP
2052 # define NV_MAX_EXP DBL_MAX_EXP
2053 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2054 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2055 # define NV_EPSILON DBL_EPSILON
2056 # define NV_MAX DBL_MAX
2057 # define NV_MIN DBL_MIN
2059 /* These math interfaces are C89. */
2060 # define Perl_acos acos
2061 # define Perl_asin asin
2062 # define Perl_atan atan
2063 # define Perl_atan2 atan2
2064 # define Perl_ceil ceil
2065 # define Perl_cos cos
2066 # define Perl_cosh cosh
2067 # define Perl_exp exp
2068 /* no Perl_fabs, but there's PERL_ABS */
2069 # define Perl_floor floor
2070 # define Perl_fmod fmod
2071 # define Perl_log log
2072 # define Perl_log10 log10
2073 # define Perl_pow pow
2074 # define Perl_sin sin
2075 # define Perl_sinh sinh
2076 # define Perl_sqrt sqrt
2077 # define Perl_tan tan
2078 # define Perl_tanh tanh
2080 # define Perl_modf(x,y) modf(x,y)
2081 # define Perl_frexp(x,y) frexp(x,y)
2082 # define Perl_ldexp(x,y) ldexp(x,y)
2086 # define Perl_isnan(x) isnan(x)
2090 # if defined(HAS_ISINF)
2091 # define Perl_isinf(x) isinf(x)
2092 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2093 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2096 # ifndef Perl_isfinite
2097 # ifdef HAS_ISFINITE
2098 # define Perl_isfinite(x) isfinite(x)
2099 # elif defined(HAS_FINITE)
2100 # define Perl_isfinite(x) finite(x)
2105 /* fpclassify(): C99. It is supposed to be a macro that switches on
2106 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2107 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2109 # if defined(FP_INFINITE) && defined(FP_NAN)
2110 # define Perl_fp_class(x) fpclassify(x)
2111 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2112 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2113 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2114 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2115 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2116 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2117 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2118 * actually not the C99 fpclassify, with its own set of return defines. */
2119 # define Perl_fp_class(x) fpclassify(x)
2120 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2121 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2122 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2123 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2124 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2125 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2126 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2127 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2128 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2129 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2131 # undef Perl_fp_class /* Unknown set of defines */
2135 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2136 * are identical to the C99 fpclassify(). */
2137 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2140 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2142 /* oh, and the isnormal macro has a typo in it! */
2144 # define isnormal(x) Perl_fp_class_norm(x)
2146 # if defined(FP_INFINITE) && defined(FP_NAN)
2147 # define Perl_fp_class(x) fp_classify(x)
2148 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2149 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2150 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2151 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2152 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2154 # undef Perl_fp_class /* Unknown set of defines */
2158 /* Feel free to check with me for the SGI manpages, SGI testing,
2159 * etcetera, if you want to try getting this to work with IRIX.
2161 * - Allen <allens@cpan.org> */
2163 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2164 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2165 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2166 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2167 * Define some symbols also as cpp symbols so we can detect them. */
2168 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2169 # define FP_PINF FP_PINF
2170 # define FP_QNAN FP_QNAN
2174 # include <ieeefp.h>
2179 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2180 # define Perl_fp_class(x) fpclassl(x)
2182 # define Perl_fp_class(x) fpclass(x)
2184 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2185 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2186 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2187 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2188 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2189 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2190 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2191 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2192 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2193 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2194 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2195 # elif defined(FP_PINF) && defined(FP_QNAN)
2196 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2197 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2198 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2199 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2200 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2201 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2202 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2203 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2204 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2205 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2207 # undef Perl_fp_class /* Unknown set of defines */
2211 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2212 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2214 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2215 # include <fp_class.h>
2217 # if defined(FP_POS_INF) && defined(FP_QNAN)
2218 # ifdef __sgi /* XXX Configure test instead */
2219 # ifdef USE_LONG_DOUBLE
2220 # define Perl_fp_class(x) fp_class_l(x)
2222 # define Perl_fp_class(x) fp_class_d(x)
2225 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2226 # define Perl_fp_class(x) fp_classl(x)
2228 # define Perl_fp_class(x) fp_class(x)
2231 # if defined(FP_POS_INF) && defined(FP_QNAN)
2232 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2233 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2234 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2235 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2236 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2237 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2238 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2239 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2240 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2241 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2243 # undef Perl_fp_class /* Unknown set of defines */
2248 /* class(), _class(): Legacy: AIX. */
2249 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2251 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2253 # define Perl_fp_class(x) class(x)
2255 # define Perl_fp_class(x) _class(x)
2257 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2258 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2259 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2260 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2261 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2262 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2263 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2264 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2265 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2266 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2267 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2269 # undef Perl_fp_class /* Unknown set of defines */
2274 /* Win32: _fpclass(), _isnan(), _finite(). */
2277 # define Perl_isnan(x) _isnan(x)
2279 # ifndef Perl_isfinite
2280 # define Perl_isfinite(x) _finite(x)
2282 # ifndef Perl_fp_class_snan
2283 /* No simple way to #define Perl_fp_class because _fpclass()
2284 * returns a set of bits. */
2285 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2286 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2287 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2288 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2289 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2290 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2291 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2292 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2293 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2294 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2295 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2296 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2297 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2298 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2299 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2303 #if !defined(Perl_fp_class_inf) && \
2304 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2305 # define Perl_fp_class_inf(x) \
2306 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2309 #if !defined(Perl_fp_class_nan) && \
2310 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2311 # define Perl_fp_class_nan(x) \
2312 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2315 #if !defined(Perl_fp_class_zero) && \
2316 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2317 # define Perl_fp_class_zero(x) \
2318 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2321 #if !defined(Perl_fp_class_norm) && \
2322 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2323 # define Perl_fp_class_norm(x) \
2324 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2327 #if !defined(Perl_fp_class_denorm) && \
2328 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2329 # define Perl_fp_class_denorm(x) \
2330 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2334 # ifdef Perl_fp_class_nan
2335 # define Perl_isnan(x) Perl_fp_class_nan(x)
2336 # elif defined(HAS_UNORDERED)
2337 # define Perl_isnan(x) unordered((x), 0.0)
2339 # define Perl_isnan(x) ((x)!=(x))
2344 # ifdef Perl_fp_class_inf
2345 # define Perl_isinf(x) Perl_fp_class_inf(x)
2349 #ifndef Perl_isfinite
2350 # if defined(HAS_ISFINITE) && !defined(isfinite)
2351 # define Perl_isfinite(x) isfinite((double)(x))
2352 # elif defined(HAS_FINITE)
2353 # define Perl_isfinite(x) finite((double)(x))
2354 # elif defined(Perl_fp_class_finite)
2355 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2357 /* For the infinities the multiplication returns nan,
2358 * for the nan the multiplication also returns nan,
2359 * for everything else (that is, finite) zero should be returned. */
2360 # define Perl_isfinite(x) (((x) * 0) == 0)
2365 # if defined(Perl_isfinite) && defined(Perl_isnan)
2366 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2370 /* We need Perl_isfinitel (ends with ell) (if available) even when
2371 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2373 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2374 /* If isfinite() is a macro and looks like we have C99,
2375 * we assume it's the type-aware C99 isfinite(). */
2376 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2377 # define Perl_isfinitel(x) isfinite(x)
2378 # elif defined(HAS_ISFINITEL)
2379 # define Perl_isfinitel(x) isfinitel(x)
2380 # elif defined(HAS_FINITEL)
2381 # define Perl_isfinitel(x) finitel(x)
2382 # elif defined(HAS_INFL) && defined(HAS_NANL)
2383 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2385 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2389 /* The default is to use Perl's own atof() implementation (in numeric.c).
2390 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2391 * it is however best to use the native implementation of atof.
2392 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2393 * Some good tests to try out with either setting are t/base/num.t,
2394 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2395 * you may need to be using a different function than atof! */
2397 #ifndef USE_PERL_ATOF
2399 # define USE_PERL_ATOF
2402 # if USE_PERL_ATOF == 0
2403 # undef USE_PERL_ATOF
2407 #ifdef USE_PERL_ATOF
2408 # define Perl_atof(s) Perl_my_atof(s)
2409 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2411 # define Perl_atof(s) (NV)atof(s)
2412 # define Perl_atof2(s, n) ((n) = atof(s))
2414 #define my_atof2(a,b) my_atof3(a,b,0)
2417 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2418 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2419 * depending on local options. Until Configure detects this (or at least
2420 * detects whether the "signed" keyword is available) the CHAR ranges
2421 * will not be included. UCHAR functions normally.
2425 #define PERL_UCHAR_MIN ((unsigned char)0)
2426 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2428 #define PERL_USHORT_MIN ((unsigned short)0)
2429 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2431 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2432 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2434 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2435 #define PERL_UINT_MIN ((unsigned int)0)
2437 #define PERL_INT_MAX ((int)INT_MAX)
2438 #define PERL_INT_MIN ((int)INT_MIN)
2440 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2441 #define PERL_ULONG_MIN ((unsigned long)0L)
2443 #define PERL_LONG_MAX ((long)LONG_MAX)
2444 #define PERL_LONG_MIN ((long)LONG_MIN)
2447 # define PERL_UQUAD_MAX (~(UV)0)
2448 # define PERL_UQUAD_MIN ((UV)0)
2449 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2450 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2453 typedef MEM_SIZE STRLEN;
2455 typedef struct op OP;
2456 typedef struct cop COP;
2457 typedef struct unop UNOP;
2458 typedef struct unop_aux UNOP_AUX;
2459 typedef struct binop BINOP;
2460 typedef struct listop LISTOP;
2461 typedef struct logop LOGOP;
2462 typedef struct pmop PMOP;
2463 typedef struct svop SVOP;
2464 typedef struct padop PADOP;
2465 typedef struct pvop PVOP;
2466 typedef struct loop LOOP;
2467 typedef struct methop METHOP;
2470 typedef struct opslab OPSLAB;
2471 typedef struct opslot OPSLOT;
2474 typedef struct block_hooks BHK;
2475 typedef struct custom_op XOP;
2477 typedef struct interpreter PerlInterpreter;
2479 /* SGI's <sys/sema.h> has struct sv */
2481 # define STRUCT_SV perl_sv
2483 # define STRUCT_SV sv
2485 typedef struct STRUCT_SV SV;
2486 typedef struct av AV;
2487 typedef struct hv HV;
2488 typedef struct cv CV;
2489 typedef struct p5rx REGEXP;
2490 typedef struct gp GP;
2491 typedef struct gv GV;
2492 typedef struct io IO;
2493 typedef struct context PERL_CONTEXT;
2494 typedef struct block BLOCK;
2496 typedef struct magic MAGIC;
2497 typedef struct xpv XPV;
2498 typedef struct xpviv XPVIV;
2499 typedef struct xpvuv XPVUV;
2500 typedef struct xpvnv XPVNV;
2501 typedef struct xpvmg XPVMG;
2502 typedef struct xpvlv XPVLV;
2503 typedef struct xpvinvlist XINVLIST;
2504 typedef struct xpvav XPVAV;
2505 typedef struct xpvhv XPVHV;
2506 typedef struct xpvgv XPVGV;
2507 typedef struct xpvcv XPVCV;
2508 typedef struct xpvbm XPVBM;
2509 typedef struct xpvfm XPVFM;
2510 typedef struct xpvio XPVIO;
2511 typedef struct mgvtbl MGVTBL;
2512 typedef union any ANY;
2513 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2514 typedef struct ptr_tbl PTR_TBL_t;
2515 typedef struct clone_params CLONE_PARAMS;
2517 /* a pad is currently just an AV; but that might change,
2518 * so hide the type. */
2519 typedef struct padlist PADLIST;
2521 typedef struct padnamelist PADNAMELIST;
2522 typedef struct padname PADNAME;
2524 /* always enable PERL_OP_PARENT */
2525 #if !defined(PERL_OP_PARENT)
2526 # define PERL_OP_PARENT
2529 /* enable PERL_COPY_ON_WRITE by default */
2530 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2531 # define PERL_COPY_ON_WRITE
2534 #ifdef PERL_COPY_ON_WRITE
2535 # define PERL_ANY_COW
2537 # define PERL_SAWAMPERSAND
2540 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2541 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2545 #include "charclass_invlists.h"
2547 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2548 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2549 # define USE_64_BIT_RAWIO /* implicit */
2553 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2554 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2555 * however, because operating systems like to do that themself. */
2558 # define FSEEKSIZE LSEEKSIZE
2560 # define FSEEKSIZE LONGSIZE
2564 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2565 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2566 # define USE_64_BIT_STDIO /* implicit */
2570 #ifdef USE_64_BIT_RAWIO
2573 # define Off_t off64_t
2575 # define LSEEKSIZE 8
2577 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2578 * will trigger defines like the ones below. Some 64-bit environments,
2579 * however, do not. Therefore we have to explicitly mix and match. */
2580 # if defined(USE_OPEN64)
2581 # define open open64
2583 # if defined(USE_LSEEK64)
2584 # define lseek lseek64
2586 # if defined(USE_LLSEEK)
2587 # define lseek llseek
2590 # if defined(USE_STAT64)
2591 # define stat stat64
2593 # if defined(USE_FSTAT64)
2594 # define fstat fstat64
2596 # if defined(USE_LSTAT64)
2597 # define lstat lstat64
2599 # if defined(USE_FLOCK64)
2600 # define flock flock64
2602 # if defined(USE_LOCKF64)
2603 # define lockf lockf64
2605 # if defined(USE_FCNTL64)
2606 # define fcntl fcntl64
2608 # if defined(USE_TRUNCATE64)
2609 # define truncate truncate64
2611 # if defined(USE_FTRUNCATE64)
2612 # define ftruncate ftruncate64
2616 #ifdef USE_64_BIT_STDIO
2617 # ifdef HAS_FPOS64_T
2619 # define Fpos_t fpos64_t
2621 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2622 * will trigger defines like the ones below. Some 64-bit environments,
2623 * however, do not. */
2624 # if defined(USE_FOPEN64)
2625 # define fopen fopen64
2627 # if defined(USE_FSEEK64)
2628 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2630 # if defined(USE_FTELL64)
2631 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2633 # if defined(USE_FSETPOS64)
2634 # define fsetpos fsetpos64
2636 # if defined(USE_FGETPOS64)
2637 # define fgetpos fgetpos64
2639 # if defined(USE_TMPFILE64)
2640 # define tmpfile tmpfile64
2642 # if defined(USE_FREOPEN64)
2643 # define freopen freopen64
2648 # include "iperlsys.h"
2653 # include "os2ish.h"
2655 # include "dosish.h"
2658 # include "vmsish.h"
2659 #elif defined(PLAN9)
2660 # include "./plan9/plan9ish.h"
2661 #elif defined(__VOS__)
2663 # include "./vos/vosish.h"
2665 # include "vos/vosish.h"
2667 #elif defined(__SYMBIAN32__)
2668 # include "symbian/symbianish.h"
2669 #elif defined(__HAIKU__)
2670 # include "haiku/haikuish.h"
2672 # include "unixish.h"
2676 # include "amigaos.h"
2677 # undef FD_CLOEXEC /* a lie in AmigaOS */
2680 /* NSIG logic from Configure --> */
2683 # define NSIG (_NSIG)
2684 # elif defined(SIGMAX)
2685 # define NSIG (SIGMAX+1)
2686 # elif defined(SIG_MAX)
2687 # define NSIG (SIG_MAX+1)
2688 # elif defined(_SIG_MAX)
2689 # define NSIG (_SIG_MAX+1)
2690 # elif defined(MAXSIG)
2691 # define NSIG (MAXSIG+1)
2692 # elif defined(MAX_SIG)
2693 # define NSIG (MAX_SIG+1)
2694 # elif defined(SIGARRAYSIZE)
2695 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2696 # elif defined(_sys_nsig)
2697 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2699 /* Default to some arbitrary number that's big enough to get most
2700 * of the common signals. */
2704 /* <-- NSIG logic from Configure */
2706 #ifndef NO_ENVIRON_ARRAY
2707 # define USE_ENVIRON_ARRAY
2711 * initialise to avoid floating-point exceptions from overflow, etc
2713 #ifndef PERL_FPU_INIT
2714 # ifdef HAS_FPSETMASK
2715 # if HAS_FLOATINGPOINT_H
2716 # include <floatingpoint.h>
2718 /* Some operating systems have this as a macro, which in turn expands to a comma
2719 expression, and the last sub-expression is something that gets calculated,
2720 and then they have the gall to warn that a value computed is not used. Hence
2722 # define PERL_FPU_INIT (void)fpsetmask(0)
2723 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2724 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2725 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2726 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2728 # define PERL_FPU_INIT
2731 #ifndef PERL_FPU_PRE_EXEC
2732 # define PERL_FPU_PRE_EXEC {
2733 # define PERL_FPU_POST_EXEC }
2736 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2737 * We need to reenable the "invalid" trap because otherwise generation
2738 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2739 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2741 # include <machine/fpu.h>
2742 # define PERL_SYS_FPU_INIT \
2744 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2745 signal(SIGFPE, SIG_IGN); \
2748 /* In IRIX the default for Flush to Zero bit is true,
2749 * which means that results going below the minimum of normal
2750 * floating points go to zero, instead of going denormal/subnormal.
2751 * This is unlike almost any other system running Perl, so let's clear it.
2752 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2753 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2755 * XXX The flush-to-zero behaviour should be a Configure scan.
2756 * To change the behaviour usually requires some system-specific
2757 * incantation, though, like the below. */
2759 # include <sys/fpu.h>
2760 # define PERL_SYS_FPU_INIT \
2762 union fpc_csr csr; \
2763 csr.fc_word = get_fpc_csr(); \
2764 csr.fc_struct.flush = 0; \
2765 set_fpc_csr(csr.fc_word); \
2769 #ifndef PERL_SYS_FPU_INIT
2770 # define PERL_SYS_FPU_INIT NOOP
2773 #ifndef PERL_SYS_INIT3_BODY
2774 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2778 =head1 Miscellaneous Functions
2780 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
2781 Provides system-specific tune up of the C runtime environment necessary to
2782 run Perl interpreters. This should be called only once, before creating
2783 any Perl interpreters.
2785 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
2786 Provides system-specific tune up of the C runtime environment necessary to
2787 run Perl interpreters. This should be called only once, before creating
2788 any Perl interpreters.
2790 =for apidoc Am|void|PERL_SYS_TERM|
2791 Provides system-specific clean up of the C runtime environment after
2792 running Perl interpreters. This should be called only once, after
2793 freeing any remaining Perl interpreters.
2798 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2799 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
2800 #define PERL_SYS_TERM() Perl_sys_term()
2802 #ifndef PERL_WRITE_MSG_TO_CONSOLE
2803 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2808 # ifdef _POSIX_PATH_MAX
2809 # if PATH_MAX > _POSIX_PATH_MAX
2810 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2811 * included the null byte or not. Later amendments of POSIX,
2812 * XPG4, the Austin Group, and the Single UNIX Specification
2813 * all explicitly include the null byte in the PATH_MAX.
2814 * Ditto for _POSIX_PATH_MAX. */
2815 # define MAXPATHLEN PATH_MAX
2817 # define MAXPATHLEN _POSIX_PATH_MAX
2820 # define MAXPATHLEN (PATH_MAX+1)
2823 # define MAXPATHLEN 1024 /* Err on the large side. */
2827 /* In case Configure was not used (we are using a "canned config"
2828 * such as Win32, or a cross-compilation setup, for example) try going
2829 * by the gcc major and minor versions. One useful URL is
2830 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2831 * but contrary to this information warn_unused_result seems
2832 * not to be in gcc 3.3.5, at least. --jhi
2833 * Also, when building extensions with an installed perl, this allows
2834 * the user to upgrade gcc and get the right attributes, rather than
2835 * relying on the list generated at Configure time. --AD
2836 * Set these up now otherwise we get confused when some of the <*thread.h>
2837 * includes below indirectly pull in <perlio.h> (which needs to know if we
2838 * have HASATTRIBUTE_FORMAT).
2842 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
2843 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2844 # define HASATTRIBUTE_DEPRECATED
2846 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2847 # define HASATTRIBUTE_FORMAT
2848 # if defined __MINGW32__
2849 # define PRINTF_FORMAT_NULL_OK
2852 # if __GNUC__ >= 3 /* 3.0 -> */
2853 # define HASATTRIBUTE_MALLOC
2855 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2856 # define HASATTRIBUTE_NONNULL
2858 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2859 # define HASATTRIBUTE_NORETURN
2861 # if __GNUC__ >= 3 /* gcc 3.0 -> */
2862 # define HASATTRIBUTE_PURE
2864 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2865 # define HASATTRIBUTE_UNUSED
2867 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2868 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2870 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2871 # define HASATTRIBUTE_WARN_UNUSED_RESULT
2874 #endif /* #ifndef PERL_MICRO */
2876 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
2877 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
2878 * this results in many functions being undeclared which bothers C++
2879 * May make sense to have threads after "*ish.h" anyway
2882 /* clang Thread Safety Analysis/Annotations/Attributes
2883 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2885 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
2886 * Apple XCode hijacks __clang_major__ and __clang_minor__
2887 * (6.1 means really clang 3.6), so needs extra hijinks
2888 * (could probably also test the contents of __apple_build_version__).
2890 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
2891 defined(__clang__) && \
2892 !defined(PERL_GLOBAL_STRUCT) && \
2893 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
2895 ((!defined(__apple_build_version__) && \
2896 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
2897 (__clang_major__ >= 4))) || \
2898 (defined(__apple_build_version__) && \
2899 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
2900 (__clang_major__ >= 7))))
2901 # define PERL_TSA__(x) __attribute__((x))
2902 # define PERL_TSA_ACTIVE
2904 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
2905 # undef PERL_TSA_ACTIVE
2908 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
2909 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
2911 #define PERL_TSA_CAPABILITY(x) \
2912 PERL_TSA__(capability(x))
2914 /* In the below examples the mutex must be lexically visible, usually
2915 * either as global variables, or as function arguments. */
2917 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
2919 * Foo foo PERL_TSA_GUARDED_BY(mutex);
2921 #define PERL_TSA_GUARDED_BY(x) \
2922 PERL_TSA__(guarded_by(x))
2924 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
2925 * The data _behind_ the pointer is guarded.
2927 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
2929 #define PERL_TSA_PT_GUARDED_BY(x) \
2930 PERL_TSA__(pt_guarded_by(x))
2932 /* PERL_TSA_REQUIRES() is used to annotate functions.
2933 * The caller MUST hold the resource when calling the function.
2935 * void Foo() PERL_TSA_REQUIRES(mutex);
2937 #define PERL_TSA_REQUIRES(x) \
2938 PERL_TSA__(requires_capability(x))
2940 /* PERL_TSA_EXCLUDES() is used to annotate functions.
2941 * The caller MUST NOT hold resource when calling the function.
2943 * EXCLUDES should be used when the function first acquires
2944 * the resource and then releases it. Use to avoid deadlock.
2946 * void Foo() PERL_TSA_EXCLUDES(mutex);
2948 #define PERL_TSA_EXCLUDES(x) \
2949 PERL_TSA__(locks_excluded(x))
2951 /* PERL_TSA_ACQUIRE() is used to annotate functions.
2952 * The caller MUST NOT hold the resource when calling the function,
2953 * and the function will acquire the resource.
2955 * void Foo() PERL_TSA_ACQUIRE(mutex);
2957 #define PERL_TSA_ACQUIRE(x) \
2958 PERL_TSA__(acquire_capability(x))
2960 /* PERL_TSA_RELEASE() is used to annotate functions.
2961 * The caller MUST hold the resource when calling the function,
2962 * and the function will release the resource.
2964 * void Foo() PERL_TSA_RELEASE(mutex);
2966 #define PERL_TSA_RELEASE(x) \
2967 PERL_TSA__(release_capability(x))
2969 /* PERL_TSA_NO_TSA is used to annotate functions.
2970 * Used when being intentionally unsafe, or when the code is too
2971 * complicated for the analysis. Use sparingly.
2973 * void Foo() PERL_TSA_NO_TSA;
2975 #define PERL_TSA_NO_TSA \
2976 PERL_TSA__(no_thread_safety_analysis)
2978 /* There are more annotations/attributes available, see the clang
2979 * documentation for details. */
2981 #if defined(USE_ITHREADS)
2983 # include <nw5thread.h>
2984 # elif defined(WIN32)
2985 # include <win32thread.h>
2987 # include "os2thread.h"
2988 # elif defined(I_MACH_CTHREADS)
2989 # include <mach/cthreads.h>
2990 typedef cthread_t perl_os_thread;
2991 typedef mutex_t perl_mutex;
2992 typedef condition_t perl_cond;
2993 typedef void * perl_key;
2994 # elif defined(I_PTHREAD) /* Posix threads */
2995 # include <pthread.h>
2996 typedef pthread_t perl_os_thread;
2997 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
2998 typedef pthread_cond_t perl_cond;
2999 typedef pthread_key_t perl_key;
3001 #endif /* USE_ITHREADS */
3003 #ifdef PERL_TSA_ACTIVE
3004 /* Since most pthread mutex interfaces have not been annotated, we
3005 * need to have these wrappers. The NO_TSA annotation is quite ugly
3006 * but it cannot be avoided in plain C, unlike in C++, where one could
3007 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3009 * The bodies of these wrappers are in util.c
3011 * TODO: however, some platforms are starting to get these clang
3012 * thread safety annotations for pthreads, for example FreeBSD.
3013 * Do we need a way to a bypass these wrappers? */
3014 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3015 PERL_TSA_ACQUIRE(*mutex)
3017 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3018 PERL_TSA_RELEASE(*mutex)
3027 # include "netware.h"
3030 #define STATUS_UNIX PL_statusvalue
3032 # define STATUS_NATIVE PL_statusvalue_vms
3034 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3035 * its contents can not be trusted. Unfortunately, Perl seems to check
3036 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3039 # include <stsdef.h>
3041 /* Presume this because if VMS changes it, it will require a new
3042 * set of APIs for waiting on children for binary compatibility.
3044 # define child_offset_bits (8)
3045 # ifndef C_FAC_POSIX
3046 # define C_FAC_POSIX 0x35A000
3049 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3050 * platform from the existing UNIX or Native status values.
3053 # define STATUS_EXIT \
3054 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3055 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3058 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3059 * exit code and shifts the UNIX value over the correct number of bits to
3060 * be a child status. Usually the number of bits is 8, but that could be
3061 * platform dependent. The NATIVE status code is presumed to have either
3062 * from a child process.
3065 /* This is complicated. The child processes return a true native VMS
3066 status which must be saved. But there is an assumption in Perl that
3067 the UNIX child status has some relationship to errno values, so
3068 Perl tries to translate it to text in some of the tests.
3069 In order to get the string translation correct, for the error, errno
3070 must be EVMSERR, but that generates a different text message
3071 than what the test programs are expecting. So an errno value must
3072 be derived from the native status value when an error occurs.
3073 That will hide the true native status message. With this version of
3074 perl, the true native child status can always be retrieved so that
3075 is not a problem. But in this case, Pl_statusvalue and errno may
3076 have different values in them.
3079 # define STATUS_NATIVE_CHILD_SET(n) \
3081 I32 evalue = (I32)n; \
3082 if (evalue == EVMSERR) { \
3083 PL_statusvalue_vms = vaxc$errno; \
3084 PL_statusvalue = evalue; \
3086 PL_statusvalue_vms = evalue; \
3087 if (evalue == -1) { \
3088 PL_statusvalue = -1; \
3089 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3091 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3092 set_vaxc_errno(evalue); \
3093 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3094 set_errno(EVMSERR); \
3095 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3096 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3100 # ifdef VMSISH_STATUS
3101 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3103 # define STATUS_CURRENT STATUS_UNIX
3106 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3107 * the NATIVE status to an equivalent value. Can not be used to translate
3108 * exit code values as exit code values are not guaranteed to have any
3109 * relationship at all to errno values.
3110 * This is used when Perl is forcing errno to have a specific value.
3112 # define STATUS_UNIX_SET(n) \
3114 I32 evalue = (I32)n; \
3115 PL_statusvalue = evalue; \
3116 if (PL_statusvalue != -1) { \
3117 if (PL_statusvalue != EVMSERR) { \
3118 PL_statusvalue &= 0xFFFF; \
3119 if (MY_POSIX_EXIT) \
3120 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3121 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3124 PL_statusvalue_vms = vaxc$errno; \
3127 else PL_statusvalue_vms = SS$_ABORT; \
3128 set_vaxc_errno(PL_statusvalue_vms); \
3131 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3132 * the NATIVE error status based on it.
3134 * When in the default mode to comply with the Perl VMS documentation,
3135 * 0 is a success and any other code sets the NATIVE status to a failure
3136 * code of SS$_ABORT.
3138 * In the new POSIX EXIT mode, native status will be set so that the
3139 * actual exit code will can be retrieved by the calling program or
3142 * If the exit code is not clearly a UNIX parent or child exit status,
3143 * it will be passed through as a VMS status.
3146 # define STATUS_UNIX_EXIT_SET(n) \
3148 I32 evalue = (I32)n; \
3149 PL_statusvalue = evalue; \
3150 if (MY_POSIX_EXIT) { \
3151 if (evalue <= 0xFF00) { \
3152 if (evalue > 0xFF) \
3153 evalue = (evalue >> child_offset_bits) & 0xFF; \
3154 PL_statusvalue_vms = \
3155 (C_FAC_POSIX | (evalue << 3 ) | \
3156 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3157 } else /* forgive them Perl, for they have sinned */ \
3158 PL_statusvalue_vms = evalue; \
3161 PL_statusvalue_vms = SS$_NORMAL; \
3162 else if (evalue <= 0xFF00) \
3163 PL_statusvalue_vms = SS$_ABORT; \
3164 else { /* forgive them Perl, for they have sinned */ \
3165 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3166 else PL_statusvalue_vms = vaxc$errno; \
3167 /* And obviously used a VMS status value instead of UNIX */ \
3168 PL_statusvalue = EVMSERR; \
3170 set_vaxc_errno(PL_statusvalue_vms); \
3175 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3176 * and sets the NATIVE error status based on it. This special case
3177 * is needed to maintain compatibility with past VMS behavior.
3179 * In the default mode on VMS, this number is passed through as
3180 * both the NATIVE and UNIX status. Which makes it different
3181 * that the STATUS_UNIX_EXIT_SET.
3183 * In the new POSIX EXIT mode, native status will be set so that the
3184 * actual exit code will can be retrieved by the calling program or
3187 * A POSIX exit code is from 0 to 255. If the exit code is higher
3188 * than this, it needs to be assumed that it is a VMS exit code and
3192 # define STATUS_EXIT_SET(n) \
3194 I32 evalue = (I32)n; \
3195 PL_statusvalue = evalue; \
3196 if (MY_POSIX_EXIT) \
3197 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3198 PL_statusvalue_vms = \
3199 (C_FAC_POSIX | (evalue << 3 ) | \
3200 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3202 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3203 set_vaxc_errno(PL_statusvalue_vms); \
3207 /* This macro forces a success status */
3208 # define STATUS_ALL_SUCCESS \
3209 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3211 /* This macro forces a failure status */
3212 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3213 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3214 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3216 #elif defined(__amigaos4__)
3217 /* A somewhat experimental attempt to simulate posix return code values */
3218 # define STATUS_NATIVE PL_statusvalue_posix
3219 # define STATUS_NATIVE_CHILD_SET(n) \
3221 PL_statusvalue_posix = (n); \
3222 if (PL_statusvalue_posix < 0) { \
3223 PL_statusvalue = -1; \
3226 PL_statusvalue = n << 8; \
3229 # define STATUS_UNIX_SET(n) \
3231 PL_statusvalue = (n); \
3232 if (PL_statusvalue != -1) \
3233 PL_statusvalue &= 0xFFFF; \
3235 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3236 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3237 # define STATUS_CURRENT STATUS_UNIX
3238 # define STATUS_EXIT STATUS_UNIX
3239 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3240 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3243 # define STATUS_NATIVE PL_statusvalue_posix
3244 # if defined(WCOREDUMP)
3245 # define STATUS_NATIVE_CHILD_SET(n) \
3247 PL_statusvalue_posix = (n); \
3248 if (PL_statusvalue_posix == -1) \
3249 PL_statusvalue = -1; \
3252 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3253 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3254 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3257 # elif defined(WIFEXITED)
3258 # define STATUS_NATIVE_CHILD_SET(n) \
3260 PL_statusvalue_posix = (n); \
3261 if (PL_statusvalue_posix == -1) \
3262 PL_statusvalue = -1; \
3265 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3266 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3270 # define STATUS_NATIVE_CHILD_SET(n) \
3272 PL_statusvalue_posix = (n); \
3273 if (PL_statusvalue_posix == -1) \
3274 PL_statusvalue = -1; \
3277 PL_statusvalue_posix & 0xFFFF; \
3281 # define STATUS_UNIX_SET(n) \
3283 PL_statusvalue = (n); \
3284 if (PL_statusvalue != -1) \
3285 PL_statusvalue &= 0xFFFF; \
3287 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3288 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3289 # define STATUS_CURRENT STATUS_UNIX
3290 # define STATUS_EXIT STATUS_UNIX
3291 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3292 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3295 /* flags in PL_exit_flags for nature of exit() */
3296 #define PERL_EXIT_EXPECTED 0x01
3297 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3298 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3299 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3302 /* format to use for version numbers in file/directory names */
3303 /* XXX move to Configure? */
3304 /* This was only ever used for the current version, and that can be done at
3305 compile time, as PERL_FS_VERSION, so should we just delete it? */
3306 # ifndef PERL_FS_VER_FMT
3307 # define PERL_FS_VER_FMT "%d.%d.%d"
3311 #ifndef PERL_FS_VERSION
3312 # define PERL_FS_VERSION PERL_VERSION_STRING
3315 /* This defines a way to flush all output buffers. This may be a
3316 * performance issue, so we allow people to disable it. Also, if
3317 * we are using stdio, there are broken implementations of fflush(NULL)
3318 * out there, Solaris being the most prominent.
3320 #ifndef PERL_FLUSHALL_FOR_CHILD
3321 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3322 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3323 # elif defined(FFLUSH_ALL)
3324 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3326 # define PERL_FLUSHALL_FOR_CHILD NOOP
3330 #ifndef PERL_WAIT_FOR_CHILDREN
3331 # define PERL_WAIT_FOR_CHILDREN NOOP
3334 /* the traditional thread-unsafe notion of "current interpreter". */
3335 #ifndef PERL_SET_INTERP
3336 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3339 #ifndef PERL_GET_INTERP
3340 # define PERL_GET_INTERP (PL_curinterp)
3343 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3344 # ifdef MULTIPLICITY
3345 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3347 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3351 This replaces the previous %_ "hack" by the "%p" hacks.
3352 All that is required is that the perl source does not
3353 use "%-p" or "%-<number>p" or "%<number>p" formats.
3354 These formats will still work in perl code.
3355 See comments in sv.c for further details.
3357 Robin Barker 2005-07-14
3359 No longer use %1p for VDf = %vd. RMB 2007-10-19
3363 # define SVf_(n) "-" STRINGIFY(n) "p"
3371 # define SVf32 SVf_(32)
3375 # define SVf256 SVf_(256)
3378 #define SVfARG(p) ((void*)(p))
3384 /* Not ideal, but we cannot easily include a number in an already-numeric
3385 * format sequence. */
3387 # define HEKf256 "3p"
3390 #define HEKfARG(p) ((void*)(p))
3392 /* Takes three arguments: is_utf8, length, str */
3394 # define UTF8f "d%" UVuf "%4p"
3396 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3399 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3402 /* not used; but needed for backward compatibility with XS code? - RMB */
3408 #ifdef HASATTRIBUTE_DEPRECATED
3409 # define __attribute__deprecated__ __attribute__((deprecated))
3411 #ifdef HASATTRIBUTE_FORMAT
3412 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3414 #ifdef HASATTRIBUTE_MALLOC
3415 # define __attribute__malloc__ __attribute__((__malloc__))
3417 #ifdef HASATTRIBUTE_NONNULL
3418 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
3420 #ifdef HASATTRIBUTE_NORETURN
3421 # define __attribute__noreturn__ __attribute__((noreturn))
3423 #ifdef HASATTRIBUTE_PURE
3424 # define __attribute__pure__ __attribute__((pure))
3426 #ifdef HASATTRIBUTE_UNUSED
3427 # define __attribute__unused__ __attribute__((unused))
3429 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
3430 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
3433 /* If we haven't defined the attributes yet, define them to blank. */
3434 #ifndef __attribute__deprecated__
3435 # define __attribute__deprecated__
3437 #ifndef __attribute__format__
3438 # define __attribute__format__(x,y,z)
3440 #ifndef __attribute__malloc__
3441 # define __attribute__malloc__
3443 #ifndef __attribute__nonnull__
3444 # define __attribute__nonnull__(a)
3446 #ifndef __attribute__noreturn__
3447 # define __attribute__noreturn__
3449 #ifndef __attribute__pure__
3450 # define __attribute__pure__
3452 #ifndef __attribute__unused__
3453 # define __attribute__unused__
3455 #ifndef __attribute__warn_unused_result__
3456 # define __attribute__warn_unused_result__
3459 #if !defined(DEBUGGING) && !defined(NDEBUG)
3464 /* For functions that are marked as __attribute__noreturn__, it's not
3465 appropriate to call return. In either case, include the lint directive.
3467 #ifdef HASATTRIBUTE_NORETURN
3468 # define NORETURN_FUNCTION_END NOT_REACHED;
3470 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3473 /* Some OS warn on NULL format to printf */
3474 #ifdef PRINTF_FORMAT_NULL_OK
3475 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3477 # define __attribute__format__null_ok__(x,y,z)
3480 #ifdef HAS_BUILTIN_EXPECT
3481 # define EXPECT(expr,val) __builtin_expect(expr,val)
3483 # define EXPECT(expr,val) (expr)
3485 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3486 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3487 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3491 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3492 time invariants. That is, their argument must be a constant expression that
3493 can be verified by the compiler. This expression can contain anything that's
3494 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3495 the expression evaluates to 0, compilation fails.
3496 Because they generate no runtime code (i.e. their use is "free"), they're
3497 always active, even under non-DEBUGGING builds.
3498 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3499 file scope (outside of any function).
3500 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3503 #if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
3504 /* static_assert is a macro defined in <assert.h> in C11 or a compiler
3505 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3506 matter what <assert.h> says.
3508 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3510 /* We use a bit-field instead of an array because gcc accepts
3511 'typedef char x[n]' where n is not a compile-time constant.
3512 We want to enforce constantness.
3514 # define STATIC_ASSERT_2(COND, SUFFIX) \
3516 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3517 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3518 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3519 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3521 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3522 error (static_assert is a declaration, and only statements can have labels).
3524 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3526 #ifndef __has_builtin
3527 # define __has_builtin(x) 0 /* not a clang style compiler */
3530 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3531 hint to a compiler about a statement of fact in a function call free
3532 expression, which allows the compiler to generate better machine code.
3533 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3534 the control path is unreachable. In a for loop, ASSUME can be used to hint
3535 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3536 intrinsic function, see its documents for more details.
3540 # if __has_builtin(__builtin_unreachable) \
3541 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3542 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3543 # elif defined(_MSC_VER)
3544 # define ASSUME(x) __assume(x)
3545 # elif defined(__ARMCC_VERSION) /* untested */
3546 # define ASSUME(x) __promise(x)
3548 /* a random compiler might define assert to its own special optimization token
3549 so pass it through to C lib as a last resort */
3550 # define ASSUME(x) assert(x)
3553 # define ASSUME(x) assert(x)
3556 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3557 # define NOT_REACHED
3558 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3559 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3560 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3562 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3565 /* Some unistd.h's give a prototype for pause() even though
3566 HAS_PAUSE ends up undefined. This causes the #define
3567 below to be rejected by the compiler. Sigh.
3572 #define Pause() sleep((32767<<16)+32767)
3576 # ifdef IOCPARM_MASK
3577 /* on BSDish systems we're safe */
3578 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3579 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3580 /* on Linux systems we're safe; except when we're not [perl #38223] */
3581 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3583 /* otherwise guess at what's safe */
3584 # define IOCPARM_LEN(x) 256
3588 #if defined(__CYGWIN__)
3590 * This symbol, if defined, indicates that the program should
3591 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3592 * that a file is in "binary" mode -- that is, that no translation
3593 * of bytes occurs on read or write operations.
3595 # define USEMYBINMODE /**/
3596 # include <io.h> /* for setmode() prototype */
3597 # define my_binmode(fp, iotype, mode) \
3598 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3602 void init_os_extras(void);
3605 #ifdef UNION_ANY_DEFINITION
3606 UNION_ANY_DEFINITION;
3624 void (*any_dptr) (void*);
3625 void (*any_dxptr) (pTHX_ void*);
3629 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3631 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3632 #define FILTER_DATA(idx) \
3633 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3634 #define FILTER_ISREADER(idx) \
3635 (PL_parser && PL_parser->rsfp_filters \
3636 && idx >= AvFILLp(PL_parser->rsfp_filters))
3637 #define PERL_FILTER_EXISTS(i) \
3638 (PL_parser && PL_parser->rsfp_filters \
3639 && (i) <= av_tindex(PL_parser->rsfp_filters))
3641 #if defined(_AIX) && !defined(_AIX43)
3642 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3643 /* We cannot include <crypt.h> to get the struct crypt_data
3644 * because of setkey prototype problems when threading */
3645 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3646 /* From OSF, Not needed in AIX
3654 #endif /* threading */
3657 #ifndef PERL_CALLCONV
3659 # define PERL_CALLCONV extern "C"
3661 # define PERL_CALLCONV
3664 #ifndef PERL_CALLCONV_NO_RET
3665 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3668 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3669 dont have a noreturn as a declaration specifier
3671 #ifndef PERL_STATIC_NO_RET
3672 # define PERL_STATIC_NO_RET STATIC
3674 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3675 builds that dont have a noreturn as a declaration specifier
3677 #ifndef PERL_STATIC_INLINE_NO_RET
3678 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3682 # include "iperlsys.h"
3685 #ifdef __LIBCATAMOUNT__
3686 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3688 #define FAKE_BIT_BUCKET
3691 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3692 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3693 * Configure, despite their names being similar to other defines like
3694 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3695 * hashes. Therefore to enable/disable the hash randomisation defines
3696 * use the Configure -Accflags=... instead. */
3697 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3698 # define USE_HASH_SEED
3704 /* macros to define bit-fields in structs. */
3705 #ifndef PERL_BITFIELD8
3706 # define PERL_BITFIELD8 unsigned
3708 #ifndef PERL_BITFIELD16
3709 # define PERL_BITFIELD16 unsigned
3711 #ifndef PERL_BITFIELD32
3712 # define PERL_BITFIELD32 unsigned
3722 #include "opnames.h"
3729 #include "warnings.h"
3732 /* these would be in doio.h if there was such a file */
3733 #define my_stat() my_stat_flags(SV_GMAGIC)
3734 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3736 /* defined in sv.c, but also used in [ach]v.c */
3739 #undef _XPVCV_COMMON
3743 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3745 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3747 /* These have to be predeclared, as they are used in proto.h which is #included
3748 * before their definitions in regcomp.h. */
3751 typedef struct regnode_charclass regnode_charclass;
3753 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3754 * used under /l matching */
3755 typedef struct regnode_charclass_posixl regnode_charclass_class;
3756 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3758 typedef struct regnode_ssc regnode_ssc;
3759 typedef struct RExC_state_t RExC_state_t;
3760 struct _reg_trie_data;
3764 struct ptr_tbl_ent {
3765 struct ptr_tbl_ent* next;
3771 struct ptr_tbl_ent** tbl_ary;
3774 struct ptr_tbl_arena *tbl_arena;
3775 struct ptr_tbl_ent *tbl_arena_next;
3776 struct ptr_tbl_ent *tbl_arena_end;
3779 #if defined(htonl) && !defined(HAS_HTONL)
3782 #if defined(htons) && !defined(HAS_HTONS)
3785 #if defined(ntohl) && !defined(HAS_NTOHL)
3788 #if defined(ntohs) && !defined(HAS_NTOHS)
3796 # if (BYTEORDER & 0xffff) == 0x4321
3797 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3798 re-order their values. However, to behave identically to the alternative
3799 implementations, they should truncate to the correct size. */
3800 # define ntohl(x) ((x)&0xFFFFFFFF)
3801 # define htonl(x) ntohl(x)
3802 # define ntohs(x) ((x)&0xFFFF)
3803 # define htons(x) ntohs(x)
3804 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3806 /* Note that we can't straight out declare our own htonl and htons because
3807 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3808 to avoid the overhead of initialising the socket subsystem, but the headers
3809 that *declare* the various functions are still seen. If we declare our own
3810 htonl etc they will clash with the declarations in the Win32 headers. */
3812 PERL_STATIC_INLINE U32
3813 my_swap32(const U32 x) {
3814 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3815 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3818 PERL_STATIC_INLINE U16
3819 my_swap16(const U16 x) {
3820 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3823 # define htonl(x) my_swap32(x)
3824 # define ntohl(x) my_swap32(x)
3825 # define ntohs(x) my_swap16(x)
3826 # define htons(x) my_swap16(x)
3828 # error "Unsupported byteorder"
3829 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3830 the error message. Please check the value of the macro BYTEORDER, as defined
3831 in config.h. The values of BYTEORDER we expect are
3833 big endian little endian
3834 32 bit 0x4321 0x1234
3835 64 bit 0x87654321 0x12345678
3837 If you have a system with a different byte order, please see
3838 pod/perlhack.pod for how to submit a patch to add supporting code.
3844 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3847 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3848 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3849 re-order their values. However, to behave identically to the alternative
3850 implementations, they should truncate to the correct size. */
3851 # define vtohl(x) ((x)&0xFFFFFFFF)
3852 # define vtohs(x) ((x)&0xFFFF)
3853 # define htovl(x) vtohl(x)
3854 # define htovs(x) vtohs(x)
3855 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3856 # define vtohl(x) ((((x)&0xFF)<<24) \
3858 +(((x)&0x0000FF00)<<8) \
3859 +(((x)&0x00FF0000)>>8) )
3860 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3861 # define htovl(x) vtohl(x)
3862 # define htovs(x) vtohs(x)
3864 # error "Unsupported byteorder"
3865 /* If you have need for current perl on PDP-11 or similar, and can help test
3866 that blead keeps working on a mixed-endian system, then see
3867 pod/perlhack.pod for how to submit patches to things working again. */
3870 /* *MAX Plus 1. A floating point value.
3871 Hopefully expressed in a way that dodgy floating point can't mess up.
3872 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3874 May find that some broken compiler will want the value cast to I32.
3875 [after the shift, as signed >> may not be as secure as unsigned >>]
3877 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3878 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3879 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3880 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3881 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3883 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
3885 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3886 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3887 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3889 /* This may look like unnecessary jumping through hoops, but converting
3890 out of range floating point values to integers *is* undefined behaviour,
3891 and it is starting to bite.
3894 #define I_32(what) (cast_i32((NV)(what)))
3895 #define U_32(what) (cast_ulong((NV)(what)))
3896 #define I_V(what) (cast_iv((NV)(what)))
3897 #define U_V(what) (cast_uv((NV)(what)))
3899 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3900 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3901 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3902 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3903 : ((n) < U32_MAX_P1 ? (U32) (n) \
3904 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3905 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3906 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3907 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3908 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3909 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3910 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3913 #define U_S(what) ((U16)U_32(what))
3914 #define U_I(what) ((unsigned int)U_32(what))
3915 #define U_L(what) U_32(what)
3918 # ifndef Perl_signbit
3919 # define Perl_signbit signbit
3923 /* These do not care about the fractional part, only about the range. */
3924 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
3925 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
3927 /* Used with UV/IV arguments: */
3928 /* XXXX: need to speed it up */
3929 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3930 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3937 #if !(defined(WIN32) || defined(SYMBIAN))
3938 Uid_t getuid (void);
3939 Uid_t geteuid (void);
3940 Gid_t getgid (void);
3941 Gid_t getegid (void);
3945 #ifndef Perl_debug_log
3946 # define Perl_debug_log PerlIO_stderr()
3949 #ifndef Perl_error_log
3950 # define Perl_error_log (PL_stderrgv \
3951 && isGV(PL_stderrgv) \
3952 && GvIOp(PL_stderrgv) \
3953 && IoOFP(GvIOp(PL_stderrgv)) \
3954 ? IoOFP(GvIOp(PL_stderrgv)) \
3959 #define DEBUG_p_FLAG 0x00000001 /* 1 */
3960 #define DEBUG_s_FLAG 0x00000002 /* 2 */
3961 #define DEBUG_l_FLAG 0x00000004 /* 4 */
3962 #define DEBUG_t_FLAG 0x00000008 /* 8 */
3963 #define DEBUG_o_FLAG 0x00000010 /* 16 */
3964 #define DEBUG_c_FLAG 0x00000020 /* 32 */
3965 #define DEBUG_P_FLAG 0x00000040 /* 64 */
3966 #define DEBUG_m_FLAG 0x00000080 /* 128 */
3967 #define DEBUG_f_FLAG 0x00000100 /* 256 */
3968 #define DEBUG_r_FLAG 0x00000200 /* 512 */
3969 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
3970 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
3971 /* U is reserved for Unofficial, exploratory hacking */
3972 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
3974 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
3975 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
3976 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
3977 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
3978 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
3979 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
3980 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
3981 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
3982 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
3983 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
3984 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
3985 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
3986 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
3987 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
3988 #define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */
3990 #define DEBUG_DB_RECURSE_FLAG 0x40000000
3991 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
3993 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
3994 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
3995 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
3996 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
3997 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
3998 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
3999 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4000 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4001 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4002 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4003 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4004 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4005 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4006 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4007 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4008 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4009 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4010 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4011 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4012 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4013 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4014 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4015 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4016 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4017 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4018 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4019 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4020 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4021 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4022 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4023 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4027 # define DEBUG_p_TEST DEBUG_p_TEST_
4028 # define DEBUG_s_TEST DEBUG_s_TEST_
4029 # define DEBUG_l_TEST DEBUG_l_TEST_
4030 # define DEBUG_t_TEST DEBUG_t_TEST_
4031 # define DEBUG_o_TEST DEBUG_o_TEST_
4032 # define DEBUG_c_TEST DEBUG_c_TEST_
4033 # define DEBUG_P_TEST DEBUG_P_TEST_
4034 # define DEBUG_m_TEST DEBUG_m_TEST_
4035 # define DEBUG_f_TEST DEBUG_f_TEST_
4036 # define DEBUG_r_TEST DEBUG_r_TEST_
4037 # define DEBUG_x_TEST DEBUG_x_TEST_
4038 # define DEBUG_u_TEST DEBUG_u_TEST_
4039 # define DEBUG_U_TEST DEBUG_U_TEST_
4040 # define DEBUG_X_TEST DEBUG_X_TEST_
4041 # define DEBUG_D_TEST DEBUG_D_TEST_
4042 # define DEBUG_S_TEST DEBUG_S_TEST_
4043 # define DEBUG_T_TEST DEBUG_T_TEST_
4044 # define DEBUG_R_TEST DEBUG_R_TEST_
4045 # define DEBUG_J_TEST DEBUG_J_TEST_
4046 # define DEBUG_v_TEST DEBUG_v_TEST_
4047 # define DEBUG_C_TEST DEBUG_C_TEST_
4048 # define DEBUG_A_TEST DEBUG_A_TEST_
4049 # define DEBUG_q_TEST DEBUG_q_TEST_
4050 # define DEBUG_M_TEST DEBUG_M_TEST_
4051 # define DEBUG_B_TEST DEBUG_B_TEST_
4052 # define DEBUG_L_TEST DEBUG_L_TEST_
4053 # define DEBUG_i_TEST DEBUG_i_TEST_
4054 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4055 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4056 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4057 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4059 # define PERL_DEB(a) a
4060 # define PERL_DEB2(a,b) a
4061 # define PERL_DEBUG(a) if (PL_debug) a
4062 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4063 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4064 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4065 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4066 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4067 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4068 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4070 /* Temporarily turn off memory debugging in case the a
4071 * does memory allocation, either directly or indirectly. */
4072 # define DEBUG_m(a) \
4074 if (PERL_GET_INTERP) { \
4076 if (DEBUG_m_TEST) { \
4077 PL_debug &= ~DEBUG_m_FLAG; \
4079 PL_debug |= DEBUG_m_FLAG; \
4084 # define DEBUG__(t, a) \
4086 if (t) STMT_START {a;} STMT_END; \
4089 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4091 # ifndef PERL_EXT_RE_BUILD
4092 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4094 # define DEBUG_r(a) STMT_START {a;} STMT_END
4095 # endif /* PERL_EXT_RE_BUILD */
4097 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4098 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4099 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4100 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4101 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4102 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4103 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4104 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4105 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4107 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4108 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4109 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4110 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4111 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4112 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4113 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4114 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4115 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4116 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4117 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4119 #else /* ! DEBUGGING below */
4121 # define DEBUG_p_TEST (0)
4122 # define DEBUG_s_TEST (0)
4123 # define DEBUG_l_TEST (0)
4124 # define DEBUG_t_TEST (0)
4125 # define DEBUG_o_TEST (0)
4126 # define DEBUG_c_TEST (0)
4127 # define DEBUG_P_TEST (0)
4128 # define DEBUG_m_TEST (0)
4129 # define DEBUG_f_TEST (0)
4130 # define DEBUG_r_TEST (0)
4131 # define DEBUG_x_TEST (0)
4132 # define DEBUG_u_TEST (0)
4133 # define DEBUG_U_TEST (0)
4134 # define DEBUG_X_TEST (0)
4135 # define DEBUG_D_TEST (0)
4136 # define DEBUG_S_TEST (0)
4137 # define DEBUG_T_TEST (0)
4138 # define DEBUG_R_TEST (0)
4139 # define DEBUG_J_TEST (0)
4140 # define DEBUG_v_TEST (0)
4141 # define DEBUG_C_TEST (0)
4142 # define DEBUG_A_TEST (0)
4143 # define DEBUG_q_TEST (0)
4144 # define DEBUG_M_TEST (0)
4145 # define DEBUG_B_TEST (0)
4146 # define DEBUG_L_TEST (0)
4147 # define DEBUG_i_TEST (0)
4148 # define DEBUG_Xv_TEST (0)
4149 # define DEBUG_Uv_TEST (0)
4150 # define DEBUG_Pv_TEST (0)
4151 # define DEBUG_Lv_TEST (0)
4153 # define PERL_DEB(a)
4154 # define PERL_DEB2(a,b) b
4155 # define PERL_DEBUG(a)
4182 # define DEBUG_Xv(a)
4183 # define DEBUG_Uv(a)
4184 # define DEBUG_Pv(a)
4185 # define DEBUG_Lv(a)
4186 #endif /* DEBUGGING */
4189 #define DEBUG_SCOPE(where) \
4191 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4192 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4193 __FILE__, __LINE__));
4195 /* Keep the old croak based assert for those who want it, and as a fallback if
4196 the platform is so heretically non-ANSI that it can't assert. */
4198 #define Perl_assert(what) PERL_DEB2( \
4199 ((what) ? ((void) 0) : \
4200 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4201 "\", line %d", STRINGIFY(what), __LINE__), \
4202 (void) 0)), ((void)0))
4204 /* assert() gets defined if DEBUGGING.
4205 * If no DEBUGGING, the <assert.h> has not been included. */
4207 # define assert(what) Perl_assert(what)
4210 # define assert_(what) assert(what),
4212 # define assert_(what)
4216 I32 (*uf_val)(pTHX_ IV, SV*);
4217 I32 (*uf_set)(pTHX_ IV, SV*);
4221 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4222 * XS code wanting to be backward compatible can do something
4223 * like the following:
4225 #ifndef PERL_MG_UFUNC
4226 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4229 static PERL_MG_UFUNC(foo_get, index, val)
4239 #ifndef PERL_MG_UFUNC
4240 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4245 /* isfinite and others are here rather than in math.h as C99 stipulates */
4250 # if !defined(WIN32) && !defined(VMS)
4252 char *crypt (const char*, const char*);
4254 # endif /* !WIN32 */
4257 char *getlogin (void);
4259 # endif /* !WIN32 */
4260 #endif /* !__cplusplus */
4262 /* Fixme on VMS. This needs to be a run-time, not build time options */
4263 /* Also rename() is affected by this */
4264 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4265 #define UNLINK unlnk
4266 I32 unlnk (pTHX_ const char*);
4268 #define UNLINK PerlLIO_unlink
4271 /* some versions of glibc are missing the setresuid() proto */
4272 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4273 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4275 /* some versions of glibc are missing the setresgid() proto */
4276 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4277 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4280 #ifndef HAS_SETREUID
4281 # ifdef HAS_SETRESUID
4282 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4283 # define HAS_SETREUID
4286 #ifndef HAS_SETREGID
4287 # ifdef HAS_SETRESGID
4288 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4289 # define HAS_SETREGID
4293 /* Sighandler_t defined in iperlsys.h */
4295 #ifdef HAS_SIGACTION
4296 typedef struct sigaction Sigsave_t;
4298 typedef Sighandler_t Sigsave_t;
4309 # define RUNOPS_DEFAULT Perl_runops_debug
4311 # define RUNOPS_DEFAULT Perl_runops_standard
4314 #if defined(USE_PERLIO)
4315 EXTERN_C void PerlIO_teardown(void);
4316 # ifdef USE_ITHREADS
4317 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4318 # define PERLIO_TERM \
4320 PerlIO_teardown(); \
4321 MUTEX_DESTROY(&PL_perlio_mutex);\
4324 # define PERLIO_INIT
4325 # define PERLIO_TERM PerlIO_teardown()
4328 # define PERLIO_INIT
4329 # define PERLIO_TERM
4333 # ifdef MUTEX_INIT_CALLS_MALLOC
4334 # define MALLOC_INIT \
4336 PL_malloc_mutex = NULL; \
4337 MUTEX_INIT(&PL_malloc_mutex); \
4339 # define MALLOC_TERM \
4341 perl_mutex tmp = PL_malloc_mutex; \
4342 PL_malloc_mutex = NULL; \
4343 MUTEX_DESTROY(&tmp); \
4346 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4347 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4350 # define MALLOC_INIT
4351 # define MALLOC_TERM
4354 #if defined(PERL_IMPLICIT_CONTEXT)
4356 struct perl_memory_debug_header;
4357 struct perl_memory_debug_header {
4359 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4362 struct perl_memory_debug_header *prev;
4363 struct perl_memory_debug_header *next;
4364 # ifdef PERL_DEBUG_READONLY_COW
4369 #elif defined(PERL_DEBUG_READONLY_COW)
4371 struct perl_memory_debug_header;
4372 struct perl_memory_debug_header {
4378 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4380 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4381 (sizeof(struct perl_memory_debug_header) + \
4382 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4383 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4386 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4389 #ifdef PERL_TRACK_MEMPOOL
4390 # ifdef PERL_DEBUG_READONLY_COW
4391 # define INIT_TRACK_MEMPOOL(header, interp) \
4393 (header).interpreter = (interp); \
4394 (header).prev = (header).next = &(header); \
4395 (header).readonly = 0; \
4398 # define INIT_TRACK_MEMPOOL(header, interp) \
4400 (header).interpreter = (interp); \
4401 (header).prev = (header).next = &(header); \
4405 # define INIT_TRACK_MEMPOOL(header, interp)
4408 #ifdef I_MALLOCMALLOC
4409 /* Needed for malloc_size(), malloc_good_size() on some systems */
4410 # include <malloc/malloc.h>
4414 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4416 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4417 # ifdef PERL_TRACK_MEMPOOL
4418 # define Perl_safesysmalloc_size(where) \
4419 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4421 # define Perl_safesysmalloc_size(where) malloc_size(where)
4424 # ifdef HAS_MALLOC_GOOD_SIZE
4425 # ifdef PERL_TRACK_MEMPOOL
4426 # define Perl_malloc_good_size(how_much) \
4427 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4429 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4432 /* Having this as the identity operation makes some code simpler. */
4433 # define Perl_malloc_good_size(how_much) (how_much)
4437 typedef int (*runops_proc_t)(pTHX);
4438 typedef void (*share_proc_t) (pTHX_ SV *sv);
4439 typedef int (*thrhook_proc_t) (pTHX);
4440 typedef OP* (*PPADDR_t[]) (pTHX);
4441 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4442 typedef void (*despatch_signals_proc_t) (pTHX);
4444 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4445 # include <crt_externs.h> /* for the env array */
4446 # define environ (*_NSGetEnviron())
4447 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4448 /* VMS and some other platforms don't use the environ array */
4449 EXTERN_C char **environ; /* environment variables supplied via exec */
4452 #define PERL_PATCHLEVEL_H_IMPLICIT
4453 #include "patchlevel.h"
4454 #undef PERL_PATCHLEVEL_H_IMPLICIT
4456 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4457 STRINGIFY(PERL_VERSION) "." \
4458 STRINGIFY(PERL_SUBVERSION)
4460 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4461 STRINGIFY(PERL_API_VERSION) "." \
4462 STRINGIFY(PERL_API_SUBVERSION)
4466 /* handy constants */
4467 EXTCONST char PL_warn_uninit[]
4468 INIT("Use of uninitialized value%s%s%s");
4469 EXTCONST char PL_warn_uninit_sv[]
4470 INIT("Use of uninitialized value%" SVf "%s%s");
4471 EXTCONST char PL_warn_nosemi[]
4472 INIT("Semicolon seems to be missing");
4473 EXTCONST char PL_warn_reserved[]
4474 INIT("Unquoted string \"%s\" may clash with future reserved word");
4475 EXTCONST char PL_warn_nl[]
4476 INIT("Unsuccessful %s on filename containing newline");
4477 EXTCONST char PL_no_wrongref[]
4478 INIT("Can't use %s ref as %s ref");
4479 /* The core no longer needs this here. If you require the string constant,
4480 please inline a copy into your own code. */
4481 EXTCONST char PL_no_symref[] __attribute__deprecated__
4482 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4483 EXTCONST char PL_no_symref_sv[]
4484 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4486 EXTCONST char PL_no_usym[]
4487 INIT("Can't use an undefined value as %s reference");
4488 EXTCONST char PL_no_aelem[]
4489 INIT("Modification of non-creatable array value attempted, subscript %d");
4490 EXTCONST char PL_no_helem_sv[]
4491 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4492 EXTCONST char PL_no_modify[]
4493 INIT("Modification of a read-only value attempted");
4494 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4495 INIT("Out of memory!\n");
4496 EXTCONST char PL_no_security[]
4497 INIT("Insecure dependency in %s%s");
4498 EXTCONST char PL_no_sock_func[]
4499 INIT("Unsupported socket function \"%s\" called");
4500 EXTCONST char PL_no_dir_func[]
4501 INIT("Unsupported directory function \"%s\" called");
4502 EXTCONST char PL_no_func[]
4503 INIT("The %s function is unimplemented");
4504 EXTCONST char PL_no_myglob[]
4505 INIT("\"%s\" %se %s can't be in a package");
4506 EXTCONST char PL_no_localize_ref[]
4507 INIT("Can't localize through a reference");
4508 EXTCONST char PL_memory_wrap[]
4509 INIT("panic: memory wrap");
4511 EXTCONST char PL_Yes[]
4513 EXTCONST char PL_No[]
4515 EXTCONST char PL_Zero[]
4517 EXTCONST char PL_hexdigit[]
4518 INIT("0123456789abcdef0123456789ABCDEF");
4520 EXTCONST STRLEN PL_WARN_ALL
4522 EXTCONST STRLEN PL_WARN_NONE
4525 /* This is constant on most architectures, a global on OS/2 */
4527 EXTCONST char PL_sh_path[]
4528 INIT(SH_PATH); /* full path of shell */
4532 EXTCONST char PL_cshname[]
4534 # define PL_cshlen (sizeof(CSH "") - 1)
4537 /* These are baked at compile time into any shared perl library.
4538 In future releases this will allow us in main() to sanity test the
4539 library we're linking against. */
4541 EXTCONST U8 PL_revision
4542 INIT(PERL_REVISION);
4543 EXTCONST U8 PL_version
4545 EXTCONST U8 PL_subversion
4546 INIT(PERL_SUBVERSION);
4548 EXTCONST char PL_uuemap[65]
4549 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4551 /* a special string address whose value is "isa", but which perl knows
4552 * to treat as if it were really "DOES" when printing the method name in
4553 * the "Can't call method '%s'" error message */
4554 EXTCONST char PL_isa_DOES[]
4558 EXTCONST char PL_uudmap[256] =
4560 # include "uuudmap.h"
4562 # include "uudmap.h"
4565 EXTCONST char PL_bitcount[256] =
4567 # include "ubitcount.h"
4569 # include "bitcount.h"
4572 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4573 EXTCONST int PL_sig_num[] = { SIG_NUM };
4575 EXTCONST char PL_uudmap[256];
4576 EXTCONST char PL_bitcount[256];
4577 EXTCONST char* const PL_sig_name[];
4578 EXTCONST int PL_sig_num[];
4581 /* fast conversion and case folding tables. The folding tables complement the
4582 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4583 * folds such as outside the range or to multiple characters. */
4588 /* The EBCDIC fold table depends on the code page, and hence is found in
4591 EXTCONST unsigned char PL_fold[] = {
4592 0, 1, 2, 3, 4, 5, 6, 7,
4593 8, 9, 10, 11, 12, 13, 14, 15,
4594 16, 17, 18, 19, 20, 21, 22, 23,
4595 24, 25, 26, 27, 28, 29, 30, 31,
4596 32, 33, 34, 35, 36, 37, 38, 39,
4597 40, 41, 42, 43, 44, 45, 46, 47,
4598 48, 49, 50, 51, 52, 53, 54, 55,
4599 56, 57, 58, 59, 60, 61, 62, 63,
4600 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4601 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4602 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4603 'x', 'y', 'z', 91, 92, 93, 94, 95,
4604 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4605 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4606 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4607 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4608 128, 129, 130, 131, 132, 133, 134, 135,
4609 136, 137, 138, 139, 140, 141, 142, 143,
4610 144, 145, 146, 147, 148, 149, 150, 151,
4611 152, 153, 154, 155, 156, 157, 158, 159,
4612 160, 161, 162, 163, 164, 165, 166, 167,
4613 168, 169, 170, 171, 172, 173, 174, 175,
4614 176, 177, 178, 179, 180, 181, 182, 183,
4615 184, 185, 186, 187, 188, 189, 190, 191,
4616 192, 193, 194, 195, 196, 197, 198, 199,
4617 200, 201, 202, 203, 204, 205, 206, 207,
4618 208, 209, 210, 211, 212, 213, 214, 215,
4619 216, 217, 218, 219, 220, 221, 222, 223,
4620 224, 225, 226, 227, 228, 229, 230, 231,
4621 232, 233, 234, 235, 236, 237, 238, 239,
4622 240, 241, 242, 243, 244, 245, 246, 247,
4623 248, 249, 250, 251, 252, 253, 254, 255
4625 EXTCONST unsigned char PL_fold_latin1[] = {
4626 /* Full latin1 complement folding, except for three problematic code points:
4627 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4628 * fold complements outside the Latin1 range, so can't match something
4629 * that isn't in utf8.
4630 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4631 * not one, so can't be represented in this table.
4633 * All have to be specially handled */
4634 0, 1, 2, 3, 4, 5, 6, 7,
4635 8, 9, 10, 11, 12, 13, 14, 15,
4636 16, 17, 18, 19, 20, 21, 22, 23,
4637 24, 25, 26, 27, 28, 29, 30, 31,
4638 32, 33, 34, 35, 36, 37, 38, 39,
4639 40, 41, 42, 43, 44, 45, 46, 47,
4640 48, 49, 50, 51, 52, 53, 54, 55,
4641 56, 57, 58, 59, 60, 61, 62, 63,
4642 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4643 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4644 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4645 'x', 'y', 'z', 91, 92, 93, 94, 95,
4646 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4647 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4648 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4649 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4650 128, 129, 130, 131, 132, 133, 134, 135,
4651 136, 137, 138, 139, 140, 141, 142, 143,
4652 144, 145, 146, 147, 148, 149, 150, 151,
4653 152, 153, 154, 155, 156, 157, 158, 159,
4654 160, 161, 162, 163, 164, 165, 166, 167,
4655 168, 169, 170, 171, 172, 173, 174, 175,
4656 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4657 184, 185, 186, 187, 188, 189, 190, 191,
4658 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4659 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4660 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4661 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4662 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4663 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4664 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4665 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4666 255 /* y with diaeresis */
4669 /* If these tables are accessed through ebcdic, the access will be converted to
4671 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4672 0, 1, 2, 3, 4, 5, 6, 7,
4673 8, 9, 10, 11, 12, 13, 14, 15,
4674 16, 17, 18, 19, 20, 21, 22, 23,
4675 24, 25, 26, 27, 28, 29, 30, 31,
4676 32, 33, 34, 35, 36, 37, 38, 39,
4677 40, 41, 42, 43, 44, 45, 46, 47,
4678 48, 49, 50, 51, 52, 53, 54, 55,
4679 56, 57, 58, 59, 60, 61, 62, 63,
4680 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4681 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4682 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4683 'x', 'y', 'z', 91, 92, 93, 94, 95,
4684 96, 97, 98, 99, 100, 101, 102, 103,
4685 104, 105, 106, 107, 108, 109, 110, 111,
4686 112, 113, 114, 115, 116, 117, 118, 119,
4687 120, 121, 122, 123, 124, 125, 126, 127,
4688 128, 129, 130, 131, 132, 133, 134, 135,
4689 136, 137, 138, 139, 140, 141, 142, 143,
4690 144, 145, 146, 147, 148, 149, 150, 151,
4691 152, 153, 154, 155, 156, 157, 158, 159,
4692 160, 161, 162, 163, 164, 165, 166, 167,
4693 168, 169, 170, 171, 172, 173, 174, 175,
4694 176, 177, 178, 179, 180, 181, 182, 183,
4695 184, 185, 186, 187, 188, 189, 190, 191,
4696 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4697 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4698 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4699 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4700 224, 225, 226, 227, 228, 229, 230, 231,
4701 232, 233, 234, 235, 236, 237, 238, 239,
4702 240, 241, 242, 243, 244, 245, 246, 247,
4703 248, 249, 250, 251, 252, 253, 254, 255
4706 /* upper and title case of latin1 characters, modified so that the three tricky
4707 * ones are mapped to 255 (which is one of the three) */
4708 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4709 0, 1, 2, 3, 4, 5, 6, 7,
4710 8, 9, 10, 11, 12, 13, 14, 15,
4711 16, 17, 18, 19, 20, 21, 22, 23,
4712 24, 25, 26, 27, 28, 29, 30, 31,
4713 32, 33, 34, 35, 36, 37, 38, 39,
4714 40, 41, 42, 43, 44, 45, 46, 47,
4715 48, 49, 50, 51, 52, 53, 54, 55,
4716 56, 57, 58, 59, 60, 61, 62, 63,
4717 64, 65, 66, 67, 68, 69, 70, 71,
4718 72, 73, 74, 75, 76, 77, 78, 79,
4719 80, 81, 82, 83, 84, 85, 86, 87,
4720 88, 89, 90, 91, 92, 93, 94, 95,
4721 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4722 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4723 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4724 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4725 128, 129, 130, 131, 132, 133, 134, 135,
4726 136, 137, 138, 139, 140, 141, 142, 143,
4727 144, 145, 146, 147, 148, 149, 150, 151,
4728 152, 153, 154, 155, 156, 157, 158, 159,
4729 160, 161, 162, 163, 164, 165, 166, 167,
4730 168, 169, 170, 171, 172, 173, 174, 175,
4731 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4732 184, 185, 186, 187, 188, 189, 190, 191,
4733 192, 193, 194, 195, 196, 197, 198, 199,
4734 200, 201, 202, 203, 204, 205, 206, 207,
4735 208, 209, 210, 211, 212, 213, 214, 215,
4736 216, 217, 218, 219, 220, 221, 222,
4737 #if UNICODE_MAJOR_VERSION > 2 \
4738 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4739 && UNICODE_DOT_DOT_VERSION >= 8)
4741 #else /* uc(sharp s) is 'sharp s' itself in early unicode */
4744 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4745 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4746 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4747 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4749 #endif /* !EBCDIC, but still in DOINIT */
4750 #else /* ! DOINIT */
4752 EXTCONST unsigned char PL_fold[];
4753 EXTCONST unsigned char PL_fold_latin1[];
4754 EXTCONST unsigned char PL_mod_latin1_uc[];
4755 EXTCONST unsigned char PL_latin1_lc[];
4759 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4761 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */
4762 0, 1, 2, 3, 4, 5, 6, 7,
4763 8, 9, 10, 11, 12, 13, 14, 15,
4764 16, 17, 18, 19, 20, 21, 22, 23,
4765 24, 25, 26, 27, 28, 29, 30, 31,
4766 32, 33, 34, 35, 36, 37, 38, 39,
4767 40, 41, 42, 43, 44, 45, 46, 47,
4768 48, 49, 50, 51, 52, 53, 54, 55,
4769 56, 57, 58, 59, 60, 61, 62, 63,
4770 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4771 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4772 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4773 'x', 'y', 'z', 91, 92, 93, 94, 95,
4774 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4775 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4776 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4777 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4778 128, 129, 130, 131, 132, 133, 134, 135,
4779 136, 137, 138, 139, 140, 141, 142, 143,
4780 144, 145, 146, 147, 148, 149, 150, 151,
4781 152, 153, 154, 155, 156, 157, 158, 159,
4782 160, 161, 162, 163, 164, 165, 166, 167,
4783 168, 169, 170, 171, 172, 173, 174, 175,
4784 176, 177, 178, 179, 180, 181, 182, 183,
4785 184, 185, 186, 187, 188, 189, 190, 191,
4786 192, 193, 194, 195, 196, 197, 198, 199,
4787 200, 201, 202, 203, 204, 205, 206, 207,
4788 208, 209, 210, 211, 212, 213, 214, 215,
4789 216, 217, 218, 219, 220, 221, 222, 223,
4790 224, 225, 226, 227, 228, 229, 230, 231,
4791 232, 233, 234, 235, 236, 237, 238, 239,
4792 240, 241, 242, 243, 244, 245, 246, 247,
4793 248, 249, 250, 251, 252, 253, 254, 255
4796 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */
4798 #endif /* !PERL_GLOBAL_STRUCT */
4802 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
4803 1, 2, 84, 151, 154, 155, 156, 157,
4804 165, 246, 250, 3, 158, 7, 18, 29,
4805 40, 51, 62, 73, 85, 96, 107, 118,
4806 129, 140, 147, 148, 149, 150, 152, 153,
4807 255, 6, 8, 9, 10, 11, 12, 13,
4808 14, 15, 24, 25, 26, 27, 28, 226,
4809 29, 30, 31, 32, 33, 43, 44, 45,
4810 46, 47, 48, 49, 50, 76, 77, 78,
4811 79, 80, 81, 82, 83, 84, 85, 86,
4812 87, 94, 95, 234, 181, 233, 187, 190,
4813 180, 96, 97, 98, 99, 100, 101, 102,
4814 104, 112, 182, 174, 236, 232, 229, 103,
4815 228, 226, 114, 115, 116, 117, 118, 119,
4816 120, 121, 122, 235, 176, 230, 194, 162,
4817 130, 131, 132, 133, 134, 135, 136, 137,
4818 138, 139, 201, 205, 163, 217, 220, 224,
4819 5, 248, 227, 244, 242, 255, 241, 231,
4820 240, 253, 16, 197, 19, 20, 21, 187,
4821 23, 169, 210, 245, 237, 249, 247, 239,
4822 168, 252, 34, 196, 36, 37, 38, 39,
4823 41, 42, 251, 254, 238, 223, 221, 213,
4824 225, 177, 52, 53, 54, 55, 56, 57,
4825 58, 59, 60, 61, 63, 64, 65, 66,
4826 67, 68, 69, 70, 71, 72, 74, 75,
4827 205, 208, 186, 202, 200, 218, 198, 179,
4828 178, 214, 88, 89, 90, 91, 92, 93,
4829 217, 166, 170, 207, 199, 209, 206, 204,
4830 160, 212, 105, 106, 108, 109, 110, 111,
4831 203, 113, 216, 215, 192, 175, 193, 243,
4832 172, 161, 123, 124, 125, 126, 127, 128,
4833 222, 219, 211, 195, 188, 193, 185, 184,
4834 191, 183, 141, 142, 143, 144, 145, 146
4836 #else /* ascii rather than ebcdic */
4837 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
4838 1, 2, 84, 151, 154, 155, 156, 157,
4839 165, 246, 250, 3, 158, 7, 18, 29,
4840 40, 51, 62, 73, 85, 96, 107, 118,
4841 129, 140, 147, 148, 149, 150, 152, 153,
4842 255, 182, 224, 205, 174, 176, 180, 217,
4843 233, 232, 236, 187, 235, 228, 234, 226,
4844 222, 219, 211, 195, 188, 193, 185, 184,
4845 191, 183, 201, 229, 181, 220, 194, 162,
4846 163, 208, 186, 202, 200, 218, 198, 179,
4847 178, 214, 166, 170, 207, 199, 209, 206,
4848 204, 160, 212, 216, 215, 192, 175, 173,
4849 243, 172, 161, 190, 203, 189, 164, 230,
4850 167, 248, 227, 244, 242, 255, 241, 231,
4851 240, 253, 169, 210, 245, 237, 249, 247,
4852 239, 168, 252, 251, 254, 238, 223, 221,
4853 213, 225, 177, 197, 171, 196, 159, 4,
4854 5, 6, 8, 9, 10, 11, 12, 13,
4855 14, 15, 16, 17, 19, 20, 21, 22,
4856 23, 24, 25, 26, 27, 28, 30, 31,
4857 32, 33, 34, 35, 36, 37, 38, 39,
4858 41, 42, 43, 44, 45, 46, 47, 48,
4859 49, 50, 52, 53, 54, 55, 56, 57,
4860 58, 59, 60, 61, 63, 64, 65, 66,
4861 67, 68, 69, 70, 71, 72, 74, 75,
4862 76, 77, 78, 79, 80, 81, 82, 83,
4863 86, 87, 88, 89, 90, 91, 92, 93,
4864 94, 95, 97, 98, 99, 100, 101, 102,
4865 103, 104, 105, 106, 108, 109, 110, 111,
4866 112, 113, 114, 115, 116, 117, 119, 120,
4867 121, 122, 123, 124, 125, 126, 127, 128,
4868 130, 131, 132, 133, 134, 135, 136, 137,
4869 138, 139, 141, 142, 143, 144, 145, 146
4873 EXTCONST unsigned char PL_freq[];
4876 /* Although only used for debugging, these constants must be available in
4877 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4878 * which has DEBUGGING enabled always */
4880 EXTCONST char* const PL_block_type[] = {
4896 EXTCONST char* PL_block_type[];
4899 /* These are all the compile time options that affect binary compatibility.
4900 Other compile time options that are binary compatible are in perl.c
4901 (in S_Internals_V()). Both are combined for the output of perl -V
4902 However, this string will be embedded in any shared perl library, which will
4903 allow us add a comparison check in perlmain.c in the near future. */
4905 EXTCONST char PL_bincompat_options[] =
4906 # ifdef DEBUG_LEAKING_SCALARS
4907 " DEBUG_LEAKING_SCALARS"
4909 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4910 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4918 # ifdef HAVE_INTERP_INTERN
4919 " HAVE_INTERP_INTERN"
4921 # ifdef MULTIPLICITY
4927 # ifdef PERLIO_LAYERS
4930 # ifdef PERL_DEBUG_READONLY_COW
4931 " PERL_DEBUG_READONLY_COW"
4933 # ifdef PERL_DEBUG_READONLY_OPS
4934 " PERL_DEBUG_READONLY_OPS"
4936 # ifdef PERL_GLOBAL_STRUCT
4937 " PERL_GLOBAL_STRUCT"
4939 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
4940 " PERL_GLOBAL_STRUCT_PRIVATE"
4942 # ifdef PERL_IMPLICIT_CONTEXT
4943 " PERL_IMPLICIT_CONTEXT"
4945 # ifdef PERL_IMPLICIT_SYS
4946 " PERL_IMPLICIT_SYS"
4951 # ifdef PERL_NEED_APPCTX
4954 # ifdef PERL_NEED_TIMESBASE
4955 " PERL_NEED_TIMESBASE"
4960 # ifdef PERL_SAWAMPERSAND
4961 " PERL_SAWAMPERSAND"
4963 # ifdef PERL_TRACK_MEMPOOL
4964 " PERL_TRACK_MEMPOOL"
4966 # ifdef PERL_USES_PL_PIDSTATUS
4967 " PERL_USES_PL_PIDSTATUS"
4969 # ifdef USE_64_BIT_ALL
4972 # ifdef USE_64_BIT_INT
4978 # ifdef USE_ITHREADS
4981 # ifdef USE_LARGE_FILES
4984 # ifdef USE_LOCALE_COLLATE
4985 " USE_LOCALE_COLLATE"
4987 # ifdef USE_LOCALE_NUMERIC
4988 " USE_LOCALE_NUMERIC"
4990 # ifdef USE_LOCALE_TIME
4993 # ifdef USE_LONG_DOUBLE
4999 # ifdef USE_QUADMATH
5002 # ifdef USE_REENTRANT_API
5003 " USE_REENTRANT_API"
5008 # ifdef VMS_DO_SOCKETS
5011 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5012 " VMS_SHORTEN_LONG_SYMBOLS"
5014 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5015 " VMS_SYMBOL_CASE_AS_IS"
5019 EXTCONST char PL_bincompat_options[];
5022 #ifndef PERL_SET_PHASE
5023 # define PERL_SET_PHASE(new_phase) \
5024 PERL_DTRACE_PROBE_PHASE(new_phase); \
5025 PL_phase = new_phase;
5028 /* The interpreter phases. If these ever change, PL_phase_names right below will
5029 * need to be updated accordingly. */
5031 PERL_PHASE_CONSTRUCT = 0,
5032 PERL_PHASE_START = 1,
5033 PERL_PHASE_CHECK = 2,
5034 PERL_PHASE_INIT = 3,
5037 PERL_PHASE_DESTRUCT = 6
5041 EXTCONST char *const PL_phase_names[] = {
5051 EXTCONST char *const PL_phase_names[];
5055 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5056 * instead of using the newer PL_phase, which provides everything PL_dirty
5057 * provided, and more. */
5058 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5060 # define PL_amagic_generation PL_na
5061 # define PL_encoding ((SV *)NULL)
5062 #endif /* !PERL_CORE */
5064 #define PL_hints PL_compiling.cop_hints
5065 #define PL_maxo MAXO
5069 /*****************************************************************************/
5070 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5071 /*****************************************************************************/
5072 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5075 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5084 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5092 XATTRBLOCK, /* next token should be an attribute or block */
5093 XATTRTERM, /* next token should be an attribute, or block in a term */
5097 XTERMORDORDOR /* evil hack */
5098 /* update exp_name[] in toke.c if adding to this enum */
5101 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5103 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5104 special and there is no need for HINT_PRIVATE_MASK for COPs
5105 However, bitops store HINT_INTEGER in their op_private.
5107 NOTE: The typical module using these has the bit value hard-coded, so don't
5108 blindly change the values of these.
5110 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5111 is for "use locale 'FOO'" which excludes some categories. It requires going
5112 to %^H to find out which are in and which are out. This could be extended
5113 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5115 #define HINT_INTEGER 0x00000001 /* integer pragma */
5116 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5117 #define HINT_LOCALE 0x00000004 /* locale pragma */
5118 #define HINT_BYTES 0x00000008 /* bytes pragma */
5119 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5121 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5122 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5123 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5125 #define HINT_BLOCK_SCOPE 0x00000100
5126 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5127 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5128 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5130 /* The HINT_NEW_* constants are used by the overload pragma */
5131 #define HINT_NEW_INTEGER 0x00001000
5132 #define HINT_NEW_FLOAT 0x00002000
5133 #define HINT_NEW_BINARY 0x00004000
5134 #define HINT_NEW_STRING 0x00008000
5135 #define HINT_NEW_RE 0x00010000
5136 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5137 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5138 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5140 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5141 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5143 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5144 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5146 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5148 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5150 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5152 /* Note: Used for HINT_M_VMSISH_*,
5153 currently defined by vms/vmsish.h:
5158 /* The following are stored in $^H{sort}, not in PL_hints */
5159 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5160 #define HINT_SORT_UNSTABLE 0x00000200
5162 /* flags for PL_sawampersand */
5164 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5165 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5166 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5168 #ifndef PERL_SAWAMPERSAND
5169 # define PL_sawampersand \
5170 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5173 /* Used for debugvar magic */
5174 #define DBVARMG_SINGLE 0
5175 #define DBVARMG_TRACE 1
5176 #define DBVARMG_SIGNAL 2
5177 #define DBVARMG_COUNT 3
5179 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5180 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5181 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5183 /* Various states of the input record separator SV (rs) */
5184 #define RsSNARF(sv) (! SvOK(sv))
5185 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5186 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5187 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5189 /* A struct for keeping various DEBUGGING related stuff,
5190 * neatly packed. Currently only scratch variables for
5191 * constructing debug output are included. Needed always,
5192 * not just when DEBUGGING, though, because of the re extension. c*/
5193 struct perl_debug_pad {
5197 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5198 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5199 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5202 /* Enable variables which are pointers to functions */
5203 typedef void (*peep_t)(pTHX_ OP* o);
5204 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5205 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5206 char* strend, char* strbeg, I32 minend,
5207 SV* screamer, void* data, U32 flags);
5208 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5209 char *strpos, char *strend,
5211 re_scream_pos_data *d);
5212 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5213 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5214 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5215 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5217 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5218 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5219 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5220 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5221 typedef void (*XSINIT_t) (pTHX);
5222 typedef void (*ATEXIT_t) (pTHX_ void*);
5223 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5225 typedef OP* (*Perl_ppaddr_t)(pTHX);
5226 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5227 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5228 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5229 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5231 typedef void(*globhook_t)(pTHX);
5233 #define KEYWORD_PLUGIN_DECLINE 0
5234 #define KEYWORD_PLUGIN_STMT 1
5235 #define KEYWORD_PLUGIN_EXPR 2
5237 /* Interpreter exitlist entry */
5238 typedef struct exitlistentry {
5239 void (*fn) (pTHX_ void*);
5241 } PerlExitListEntry;
5243 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5244 /* These have to be before perlvars.h */
5245 #if !defined(HAS_SIGACTION) && defined(VMS)
5246 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5248 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5249 #if defined(KILL_BY_SIGPRC)
5250 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5253 #if !defined(MULTIPLICITY)
5255 struct interpreter {
5261 /* If we have multiple interpreters define a struct
5262 holding variables which must be per-interpreter
5263 If we don't have threads anything that would have
5264 be per-thread is per-interpreter.
5267 /* Set up PERLVAR macros for populating structs */
5268 # define PERLVAR(prefix,var,type) type prefix##var;
5270 /* 'var' is an array of length 'n' */
5271 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5273 /* initialize 'var' to init' */
5274 # define PERLVARI(prefix,var,type,init) type prefix##var;
5276 /* like PERLVARI, but make 'var' a const */
5277 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5279 struct interpreter {
5280 # include "intrpvar.h"
5283 EXTCONST U16 PL_interp_size
5284 INIT(sizeof(struct interpreter));
5286 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5287 STRUCT_OFFSET(struct interpreter, member) + \
5288 sizeof(((struct interpreter*)0)->member)
5290 /* This will be useful for subsequent releases, because this has to be the
5291 same in your libperl as in main(), else you have a mismatch and must abort.
5293 EXTCONST U16 PL_interp_size_5_18_0
5294 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5297 # ifdef PERL_GLOBAL_STRUCT
5298 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5299 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5302 # include "perlvars.h"
5305 EXTCONST U16 PL_global_struct_size
5306 INIT(sizeof(struct perl_vars));
5309 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5310 EXT struct perl_vars PL_Vars;
5311 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5312 # undef PERL_GET_VARS
5313 # define PERL_GET_VARS() PL_VarsPtr
5314 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5315 # else /* PERL_CORE */
5316 # if !defined(__GNUC__) || !defined(WIN32)
5319 struct perl_vars *PL_VarsPtr;
5320 # define PL_Vars (*((PL_VarsPtr) \
5321 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5322 # endif /* PERL_CORE */
5323 # endif /* PERL_GLOBAL_STRUCT */
5325 /* Done with PERLVAR macros for now ... */
5331 #endif /* MULTIPLICITY */
5333 struct tempsym; /* defined in pp_pack.c */
5340 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5341 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5344 # include "malloc_ctl.h"
5348 * This provides a layer of functions and macros to ensure extensions will
5349 * get to use the same RTL functions as the core.
5352 # include "win32iop.h"
5358 /* this has structure inits, so it cannot be included before here */
5361 /* The following must follow proto.h as #defines mess up syntax */
5363 #if !defined(PERL_FOR_X2P)
5364 # include "embedvar.h"
5367 /* Now include all the 'global' variables
5368 * If we don't have threads or multiple interpreters
5369 * these include variables that would have been their struct-s
5372 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5373 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5374 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5375 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5377 #if !defined(MULTIPLICITY)
5379 # include "intrpvar.h"
5381 # define PL_sv_yes (PL_sv_immortals[0])
5382 # define PL_sv_undef (PL_sv_immortals[1])
5383 # define PL_sv_no (PL_sv_immortals[2])
5384 # define PL_sv_zero (PL_sv_immortals[3])
5388 /* All core uses now exterminated. Ensure no zombies can return: */
5392 /* Now all the config stuff is setup we can include embed.h
5393 In particular, need the relevant *ish file included already, as it may
5394 define HAVE_INTERP_INTERN */
5397 #ifndef PERL_GLOBAL_STRUCT
5400 # include "perlvars.h"
5410 #if !defined(MULTIPLICITY)
5411 /* Set up PERLVAR macros for populating structs */
5412 # define PERLVAR(prefix,var,type) type prefix##var;
5413 /* 'var' is an array of length 'n' */
5414 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5415 /* initialize 'var' to init' */
5416 # define PERLVARI(prefix,var,type,init) type prefix##var;
5417 /* like PERLVARI, but make 'var' a const */
5418 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5420 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5421 struct PerlHandShakeInterpreter {
5422 # include "intrpvar.h"
5432 /* dummy variables that hold pointers to both runops functions, thus forcing
5433 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5435 EXTCONST runops_proc_t PL_runops_std
5436 INIT(Perl_runops_standard);
5437 EXTCONST runops_proc_t PL_runops_dbg
5438 INIT(Perl_runops_debug);
5440 #define EXT_MGVTBL EXTCONST MGVTBL
5442 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5443 #define PERL_MAGIC_VALUE_MAGIC 0x80
5444 #define PERL_MAGIC_VTABLE_MASK 0x3F
5445 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5446 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5447 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5448 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5450 #include "mg_vtable.h"
5453 EXTCONST U8 PL_magic_data[256] =
5455 # include "umg_data.h"
5457 # include "mg_data.h"
5461 EXTCONST U8 PL_magic_data[256];
5465 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5467 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5469 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5471 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5473 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5475 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5477 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5481 EXTCONST bool PL_valid_types_IVX[];
5482 EXTCONST bool PL_valid_types_NVX[];
5483 EXTCONST bool PL_valid_types_PVX[];
5484 EXTCONST bool PL_valid_types_RV[];
5485 EXTCONST bool PL_valid_types_IV_set[];
5486 EXTCONST bool PL_valid_types_NV_set[];
5490 /* In C99 we could use designated (named field) union initializers.
5491 * In C89 we need to initialize the member declared first.
5492 * In C++ we need extern C initializers.
5494 * With the U8_NV version you will want to have inner braces,
5495 * while with the NV_U8 use just the NV. */
5497 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5498 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5500 /* if these never got defined, they need defaults */
5501 #ifndef PERL_SET_CONTEXT
5502 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5505 #ifndef PERL_GET_CONTEXT
5506 # define PERL_GET_CONTEXT PERL_GET_INTERP
5509 #ifndef PERL_GET_THX
5510 # define PERL_GET_THX ((void*)NULL)
5513 #ifndef PERL_SET_THX
5514 # define PERL_SET_THX(t) NOOP
5519 /* The tables below are adapted from
5520 * http://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5523 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5525 Permission is hereby granted, free of charge, to any person obtaining a copy of
5526 this software and associated documentation files (the "Software"), to deal in
5527 the Software without restriction, including without limitation the rights to
5528 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5529 of the Software, and to permit persons to whom the Software is furnished to do
5530 so, subject to the following conditions:
5532 The above copyright notice and this permission notice shall be included in all
5533 copies or substantial portions of the Software.
5535 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5536 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5537 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5538 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5539 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5540 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5546 # if 0 /* This is the original table given in
5547 http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5548 static U8 utf8d_C9[] = {
5549 /* The first part of the table maps bytes to character classes that
5550 * to reduce the size of the transition table and create bitmasks. */
5551 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*/
5552 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*/
5553 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*/
5554 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*/
5555 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*/
5556 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*/
5557 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*/
5558 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*/
5560 /* The second part is a transition table that maps a combination
5561 * of a state of the automaton and a character class to a state. */
5562 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5563 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5564 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5565 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5566 12,36,12,12,12,12,12,12,12,12,12,12
5571 /* This is a version of the above table customized for Perl that doesn't
5572 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5573 * machines). The classes have been renumbered so that the patterns are more
5574 * evident in the table. The class numbers for start bytes are constrained so
5575 * that they can be used as a shift count for masking off the leading one bits.
5576 * It would make the code simpler if start byte FF could also be handled, but
5577 * doing so would mean adding nodes for each of continuation bytes 6-12
5578 * remaining, and two more nodes for overlong detection (a total of 9), and
5579 * there is room only for 4 more nodes unless we make the array U16 instead of
5584 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5586 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5587 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5588 * 88-8F 10 Not legal immediately after start bytes E0 F0
5589 * 90-9F 11 Not legal immediately after start byte E0
5601 * FE 17 (or 1 on 32-bit machines, since it overflows)
5605 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5606 /* The first part of the table maps bytes to character classes to reduce
5607 * the size of the transition table and create bitmasks. */
5608 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5609 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5610 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5611 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5612 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5613 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5614 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5615 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5616 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5617 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5618 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5619 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5620 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5621 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5622 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5623 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5631 /* The second part is a transition table that maps a combination
5632 * of a state of the automaton and a character class to a new state, called a
5633 * node. The nodes are:
5634 * N0 The initial state, and final accepting one.
5635 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5636 * immediately when the start byte indicates a two-byte sequence
5637 * N2 Any two continuation bytes left.
5638 * N3 Any three continuation bytes left.
5639 * N4 Any four continuation bytes left.
5640 * N5 Any five continuation bytes left.
5641 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5642 * the other continuations transition to N1
5643 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5644 * the other continuations transition to N2
5645 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5646 * the other continuations transition to N3
5647 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5648 * the other continuations transition to N4
5649 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5650 * the other continuations transition to N5
5651 * 1 Reject. All transitions not mentioned above (except the single
5652 * byte ones (as they are always legal) are to this state.
5655 # define NUM_CLASSES 18
5657 # define N1 ((N0) + NUM_CLASSES)
5658 # define N2 ((N1) + NUM_CLASSES)
5659 # define N3 ((N2) + NUM_CLASSES)
5660 # define N4 ((N3) + NUM_CLASSES)
5661 # define N5 ((N4) + NUM_CLASSES)
5662 # define N6 ((N5) + NUM_CLASSES)
5663 # define N7 ((N6) + NUM_CLASSES)
5664 # define N8 ((N7) + NUM_CLASSES)
5665 # define N9 ((N8) + NUM_CLASSES)
5666 # define N10 ((N9) + NUM_CLASSES)
5668 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5669 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5670 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5671 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5672 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5673 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5674 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5676 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5677 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5678 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5679 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5680 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5683 /* And below is a version of the above table that accepts only strict UTF-8.
5684 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5685 * passes this dfa, it will be for a well-formed, non-problematic code point
5686 * that can be returned immediately.
5688 * The "Implementation details" portion of
5689 * http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5690 * the first portion of the table maps each possible byte into a character
5691 * class. And that the classes for those bytes which are start bytes have been
5692 * carefully chosen so they serve as well to be used as a shift value to mask
5693 * off the leading 1 bits of the start byte. Unfortunately the addition of
5694 * being able to distinguish non-characters makes this not fully work. This is
5695 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5697 * 1) ED because it could be a surrogate
5698 * 2) EF because it could be a non-character
5699 * 3) the rest, which can never evaluate to a problematic code point.
5701 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5702 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5703 * But that only allows two categories, and we need three. khw made the
5704 * decision to therefore treat the ED start byte as an error, so that the dfa
5705 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5706 * distinguish EF vs the rest. Then special code is used to deal with ED,
5707 * that's executed only when the dfa drops out. The code points started by ED
5708 * are half surrogates, and half hangul syllables. This means that 2048 of the
5709 * the hangul syllables (about 18%) take longer than all other non-problematic
5710 * code points to handle.
5712 * The changes to handle non-characters requires the addition of states and
5713 * classes to the dfa. (See the section on "Mapping bytes to character
5714 * classes" in the linked-to document for further explanation of the original
5738 * F1-F3 6 (6 bits can be stripped)
5739 * F4 5 (only 5 can be stripped)
5743 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5744 /* The first part of the table maps bytes to character classes to reduce
5745 * the size of the transition table and create bitmasks. */
5746 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5747 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5748 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5749 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5750 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5751 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5752 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5753 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5754 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5755 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5756 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5757 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5758 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5759 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5760 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5761 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5763 /* The second part is a transition table that maps a combination
5764 * of a state of the automaton and a character class to a new state, called a
5765 * node. The nodes are:
5766 * N0 The initial state, and final accepting one.
5767 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5768 * immediately when the start byte indicates a two-byte sequence
5769 * N2 Any two continuation bytes left.
5770 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5771 * the other continuations transition to state N1
5772 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5773 * the other continuations transitions to N1
5774 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5775 * [9AB]F transition to N10; the other continuations to N2.
5776 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5777 * to N10; the other continuations to N2.
5778 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5779 * (non-unicode); 8F transitions to N10; the other continuations to N2
5780 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5781 * (non-characters); the other continuations transition to N0.
5782 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
5783 * (non-characters); the other continuations transition to N0.
5784 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
5785 * Continuation byte BF transitions to N11; the other continuations to
5787 * N11 Initial sequence is the two bytes given in N10 followed by BF.
5788 * Continuation bytes BE and BF are illegal (non-characters); the other
5789 * continuations transition to N0.
5790 * 1 Reject. All transitions not mentioned above (except the single
5791 * byte ones (as they are always legal) are to this state.
5805 # define NUM_CLASSES 19
5807 # define N1 ((N0) + NUM_CLASSES)
5808 # define N2 ((N1) + NUM_CLASSES)
5809 # define N3 ((N2) + NUM_CLASSES)
5810 # define N4 ((N3) + NUM_CLASSES)
5811 # define N5 ((N4) + NUM_CLASSES)
5812 # define N6 ((N5) + NUM_CLASSES)
5813 # define N7 ((N6) + NUM_CLASSES)
5814 # define N8 ((N7) + NUM_CLASSES)
5815 # define N9 ((N8) + NUM_CLASSES)
5816 # define N10 ((N9) + NUM_CLASSES)
5817 # define N11 ((N10) + NUM_CLASSES)
5819 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
5820 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
5821 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5822 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
5824 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
5825 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
5826 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
5827 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
5828 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
5829 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
5830 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5831 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
5832 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5835 /* And below is yet another version of the above tables that accepts only UTF-8
5836 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
5837 * it allows non-characters. This is isomorphic to the original table
5838 * in http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
5852 * F1-F3 6 (6 bits can be stripped)
5853 * F4 5 (only 5 can be stripped)
5857 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
5858 /* The first part of the table maps bytes to character classes to reduce
5859 * the size of the transition table and create bitmasks. */
5860 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5861 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5862 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5863 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5864 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5865 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5866 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5867 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5868 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
5869 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
5870 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
5871 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
5872 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5873 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5874 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
5875 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5877 /* The second part is a transition table that maps a combination
5878 * of a state of the automaton and a character class to a new state, called a
5879 * node. The nodes are:
5880 * N0 The initial state, and final accepting one.
5881 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5882 * immediately when the start byte indicates a two-byte sequence
5883 * N2 Any two continuation bytes left.
5884 * N3 Any three continuation bytes left.
5885 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5886 * the other continuations transition to state N1
5887 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
5888 * so are illegal. The other continuations transition to state N1.
5889 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5890 * the other continuations transition to N2
5891 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5892 * (non-unicode); the other continuations transition to N2
5893 * 1 Reject. All transitions not mentioned above (except the single
5894 * byte ones (as they are always legal) are to this state.
5906 # define NUM_CLASSES 12
5908 # define N1 ((N0) + NUM_CLASSES)
5909 # define N2 ((N1) + NUM_CLASSES)
5910 # define N3 ((N2) + NUM_CLASSES)
5911 # define N4 ((N3) + NUM_CLASSES)
5912 # define N5 ((N4) + NUM_CLASSES)
5913 # define N6 ((N5) + NUM_CLASSES)
5914 # define N7 ((N6) + NUM_CLASSES)
5916 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
5917 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
5918 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
5919 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
5920 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
5922 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
5923 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
5924 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
5925 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
5928 # else /* End of is DOINIT */
5930 EXTCONST U8 PL_extended_utf8_dfa_tab[];
5931 EXTCONST U8 PL_strict_utf8_dfa_tab[];
5932 EXTCONST U8 PL_c9_utf8_dfa_tab[];
5935 #endif /* end of isn't EBCDIC */
5937 #ifndef PERL_NO_INLINE_FUNCTIONS
5938 /* Static inline funcs that depend on includes and declarations above.
5939 Some of these reference functions in the perl object files, and some
5940 compilers aren't smart enough to eliminate unused static inline
5941 functions, so including this file in source code can cause link errors
5942 even if the source code uses none of the functions. Hence including these
5943 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5944 (obviously) result in unworkable XS code, but allows simple probing code
5945 to continue to work, because it permits tests to include the perl headers
5946 for definitions without creating a link dependency on the perl library
5947 (which may not exist yet).
5950 # include "inline.h"
5953 #include "overload.h"
5962 CV* table[NofAMmeth];
5964 struct am_table_short {
5970 typedef struct am_table AMT;
5971 typedef struct am_table_short AMTS;
5973 #define AMGfallNEVER 1
5975 #define AMGfallYES 3
5977 #define AMTf_AMAGIC 1
5978 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5979 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5980 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5982 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
5985 * some compilers like to redefine cos et alia as faster
5986 * (and less accurate?) versions called F_cos et cetera (Quidquid
5987 * latine dictum sit, altum viditur.) This trick collides with
5988 * the Perl overloading (amg). The following #defines fool both.
5993 # define F_atan2_amg atan2_amg
5996 # define F_cos_amg cos_amg
5999 # define F_exp_amg exp_amg
6002 # define F_log_amg log_amg
6005 # define F_pow_amg pow_amg
6008 # define F_sin_amg sin_amg
6011 # define F_sqrt_amg sqrt_amg
6013 #endif /* _FASTMATH */
6015 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6016 PERLDBf_NOOPT | PERLDBf_INTER | \
6017 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6018 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6020 /* No _NONAME, _GOTO */
6021 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6022 #define PERLDBf_LINE 0x02 /* Keep line # */
6023 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6024 #define PERLDBf_INTER 0x08 /* Preserve more data for
6025 later inspections */
6026 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6027 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6028 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6029 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6030 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6031 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6032 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6033 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6034 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6036 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6037 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6038 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6039 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6040 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6041 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6042 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6043 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6044 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6045 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6046 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6047 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6048 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6050 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6053 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6054 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6055 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6056 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6057 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6058 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6059 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6060 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6062 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6063 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6064 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6065 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6066 # define USER_PROP_MUTEX_INIT NOOP
6067 # define USER_PROP_MUTEX_LOCK NOOP
6068 # define USER_PROP_MUTEX_UNLOCK NOOP
6069 # define USER_PROP_MUTEX_TERM NOOP
6072 #ifdef USE_LOCALE /* These locale things are all subject to change */
6074 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6076 # define IN_LOCALE_RUNTIME (PL_curcop \
6077 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6079 /* Returns TRUE if either form of the locale pragma is in effect */
6080 # define IN_SOME_LOCALE_FORM_RUNTIME \
6081 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6083 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6084 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6085 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6087 # define IN_LOCALE \
6088 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6089 # define IN_SOME_LOCALE_FORM \
6090 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6091 : IN_SOME_LOCALE_FORM_RUNTIME)
6093 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6094 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6096 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6097 # define IN_LC_PARTIAL_RUNTIME \
6098 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6100 # define IN_LC_COMPILETIME(category) \
6101 ( IN_LC_ALL_COMPILETIME \
6102 || ( IN_LC_PARTIAL_COMPILETIME \
6103 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6104 # define IN_LC_RUNTIME(category) \
6105 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6106 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6107 # define IN_LC(category) \
6108 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6110 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6112 /* This internal macro should be called from places that operate under
6113 * locale rules. It there is a problem with the current locale that
6114 * hasn't been raised yet, it will output a warning this time. Because
6115 * this will so rarely be true, there is no point to optimize for time;
6116 * instead it makes sense to minimize space used and do all the work in
6117 * the rarely called function */
6118 # ifdef USE_LOCALE_CTYPE
6119 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6121 if (UNLIKELY(PL_warn_locale)) { \
6122 Perl__warn_problematic_locale(); \
6126 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6130 /* These two internal macros are called when a warning should be raised,
6131 * and will do so if enabled. The first takes a single code point
6132 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6133 * string, and an end position which it won't try to read past */
6134 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6136 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6137 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6138 "Wide character (U+%" UVXf ") in %s",\
6139 (UV) cp, OP_DESC(PL_op)); \
6143 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6144 STMT_START { /* Check if to warn before doing the conversion work */\
6145 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6146 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6147 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6148 "Wide character (U+%" UVXf ") in %s", \
6150 ? UNICODE_REPLACEMENT \
6156 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6157 #else /* No locale usage */
6158 # define IN_LOCALE_RUNTIME 0
6159 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6160 # define IN_LOCALE_COMPILETIME 0
6161 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6162 # define IN_LOCALE 0
6163 # define IN_SOME_LOCALE_FORM 0
6164 # define IN_LC_ALL_COMPILETIME 0
6165 # define IN_LC_ALL_RUNTIME 0
6166 # define IN_LC_PARTIAL_COMPILETIME 0
6167 # define IN_LC_PARTIAL_RUNTIME 0
6168 # define IN_LC_COMPILETIME(category) 0
6169 # define IN_LC_RUNTIME(category) 0
6170 # define IN_LC(category) 0
6171 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6172 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6173 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6177 /* Locale/thread synchronization macros. These aren't needed if using
6178 * thread-safe locale operations, except if something is broken */
6179 #if defined(USE_LOCALE) \
6180 && defined(USE_ITHREADS) \
6181 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6183 /* We have a locale object holding the 'C' locale for Posix 2008 */
6184 # ifndef USE_POSIX_2008_LOCALE
6185 # define _LOCALE_TERM_POSIX_2008 NOOP
6187 # define _LOCALE_TERM_POSIX_2008 \
6189 if (PL_C_locale_obj) { \
6190 /* Make sure we aren't using the locale \
6191 * space we are about to free */ \
6192 uselocale(LC_GLOBAL_LOCALE); \
6193 freelocale(PL_C_locale_obj); \
6194 PL_C_locale_obj = (locale_t) NULL; \
6199 /* This is used as a generic lock for locale operations. For example this is
6200 * used when calling nl_langinfo() so that another thread won't zap the
6201 * contents of its buffer before it gets saved; and it's called when changing
6202 * the locale of LC_MESSAGES. On some systems the latter can cause the
6203 * nl_langinfo buffer to be zapped under a race condition.
6205 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6206 * should be contained entirely within the locked portion of LC_NUMERIC. This
6207 * mutex should be used only in very short sections of code, while
6208 * LC_NUMERIC_LOCK may span more operations. By always following this
6209 * convention, deadlock should be impossible. But if necessary, the two
6210 * mutexes could be combined.
6212 * Actually, the two macros just below with the '_V' suffixes are used in just
6213 * a few places where there is a broken localeconv(), but otherwise things are
6214 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6215 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6216 # define LOCALE_LOCK_V \
6218 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6219 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6220 MUTEX_LOCK(&PL_locale_mutex); \
6222 # define LOCALE_UNLOCK_V \
6224 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6225 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6226 MUTEX_UNLOCK(&PL_locale_mutex); \
6229 /* On windows, we just need the mutex for LOCALE_LOCK */
6230 # ifdef TS_W32_BROKEN_LOCALECONV
6231 # define LOCALE_LOCK NOOP
6232 # define LOCALE_UNLOCK NOOP
6233 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6234 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6235 # define LC_NUMERIC_LOCK(cond)
6236 # define LC_NUMERIC_UNLOCK
6238 # define LOCALE_LOCK LOCALE_LOCK_V
6239 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6241 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6243 # define LOCALE_INIT STMT_START { \
6244 MUTEX_INIT(&PL_locale_mutex); \
6245 MUTEX_INIT(&PL_lc_numeric_mutex); \
6248 # define LOCALE_TERM STMT_START { \
6249 MUTEX_DESTROY(&PL_locale_mutex); \
6250 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6251 _LOCALE_TERM_POSIX_2008; \
6254 /* This mutex is used to create critical sections where we want the
6255 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6256 * the underlying locale, so that other threads interrupting this one don't
6257 * change it to the wrong state before we've had a chance to complete our
6258 * operation. It can stay locked over an entire printf operation, for
6259 * example. And so is made distinct from the LOCALE_LOCK mutex.
6261 * This simulates kind of a general semaphore. The current thread will
6262 * lock the mutex if the per-thread variable is zero, and then increments
6263 * that variable. Each corresponding UNLOCK decrements the variable until
6264 * it is 0, at which point it actually unlocks the mutex. Since the
6265 * variable is per-thread, there is no race with other threads.
6267 * The single argument is a condition to test for, and if true, to panic,
6268 * as this would be an attempt to complement the LC_NUMERIC state, and
6269 * we're not supposed to because it's locked.
6271 * Clang improperly gives warnings for this, if not silenced:
6272 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6274 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6275 CLANG_DIAG_IGNORE(-Wthread-safety) \
6277 if (PL_lc_numeric_mutex_depth <= 0) { \
6278 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6279 PL_lc_numeric_mutex_depth = 1; \
6280 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6281 "%s: %d: locking lc_numeric; depth=1\n", \
6282 __FILE__, __LINE__)); \
6285 PL_lc_numeric_mutex_depth++; \
6286 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6287 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6288 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6289 if (cond_to_panic_if_already_locked) { \
6290 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6291 " LC_NUMERIC incompatibly", \
6292 __FILE__, __LINE__); \
6297 # define LC_NUMERIC_UNLOCK \
6299 if (PL_lc_numeric_mutex_depth <= 1) { \
6300 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6301 PL_lc_numeric_mutex_depth = 0; \
6302 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6303 "%s: %d: unlocking lc_numeric; depth=0\n", \
6304 __FILE__, __LINE__)); \
6307 PL_lc_numeric_mutex_depth--; \
6308 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6309 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6310 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6315 # endif /* End of needs locking LC_NUMERIC */
6316 #else /* Below is no locale sync needed */
6317 # define LOCALE_INIT
6318 # define LOCALE_LOCK
6319 # define LOCALE_LOCK_V
6320 # define LOCALE_UNLOCK
6321 # define LOCALE_UNLOCK_V
6322 # define LC_NUMERIC_LOCK(cond)
6323 # define LC_NUMERIC_UNLOCK
6324 # define LOCALE_TERM
6327 #ifdef USE_LOCALE_NUMERIC
6329 /* These macros are for toggling between the underlying locale (UNDERLYING or
6330 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6331 * locale if the underlying locale is indistinguishable from it in the numeric
6332 * operations used by Perl, namely the decimal point, and even the thousands
6335 =head1 Locale-related functions and macros
6337 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6339 This macro should be used as a statement. It declares a private variable
6340 (whose name begins with an underscore) that is needed by the other macros in
6341 this section. Failing to include this correctly should lead to a syntax error.
6342 For compatibility with C89 C compilers it should be placed in a block before
6343 any executable statements.
6345 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6347 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
6348 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6349 underlying locale. (The perl interpreter could be wrong about what the
6350 underlying locale actually is if some C or XS code has called the C library
6351 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6352 this macro will update perl's records.)
6354 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6355 declare at compile time a private variable used by this macro. This macro
6356 should be called as a single statement, not an expression, but with an empty
6357 argument list, like this:
6360 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6362 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6364 RESTORE_LC_NUMERIC();
6368 The private variable is used to save the current locale state, so
6369 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6371 On threaded perls not operating with thread-safe functionality, this macro uses
6372 a mutex to force a critical section. Therefore the matching RESTORE should be
6373 close by, and guaranteed to be called.
6375 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6377 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6378 This locale category is generally kept set to a locale where the decimal radix
6379 character is a dot, and the separator between groups of digits is empty. This
6380 is because most XS code that reads floating point numbers is expecting them to
6383 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6384 aware of locale if the call to the XS or C code from the Perl program is
6385 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6386 instead from outside such scope.
6388 This macro is the start of wrapping the C or XS code; the wrap ending is done
6389 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6390 the state can be changed that will adversely affect other XS code.
6392 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6393 declare at compile time a private variable used by this macro. This macro
6394 should be called as a single statement, not an expression, but with an empty
6395 argument list, like this:
6398 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6400 STORE_LC_NUMERIC_SET_TO_NEEDED();
6402 RESTORE_LC_NUMERIC();
6406 On threaded perls not operating with thread-safe functionality, this macro uses
6407 a mutex to force a critical section. Therefore the matching RESTORE should be
6408 close by, and guaranteed to be called.
6410 =for apidoc Am|void|RESTORE_LC_NUMERIC
6412 This is used in conjunction with one of the macros
6413 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6414 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6415 C<LC_NUMERIC> state.
6417 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6418 declare at compile time a private variable used by this macro and the two
6419 C<STORE> ones. This macro should be called as a single statement, not an
6420 expression, but with an empty argument list, like this:
6423 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6425 RESTORE_LC_NUMERIC();
6433 /* If the underlying numeric locale has a non-dot decimal point or has a
6434 * non-empty floating point thousands separator, the current locale is instead
6435 * generally kept in the C locale instead of that underlying locale. The
6436 * current status is known by looking at two words. One is non-zero if the
6437 * current numeric locale is the standard C/POSIX one or is indistinguishable
6438 * from C. The other is non-zero if the current locale is the underlying
6439 * locale. Both can be non-zero if, as often happens, the underlying locale is
6440 * C or indistinguishable from it.
6442 * khw believes the reason for the variables instead of the bits in a single
6443 * word is to avoid having to have masking instructions. */
6445 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6447 /* We can lock the category to stay in the C locale, making requests to the
6448 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6450 # define _NOT_IN_NUMERIC_UNDERLYING \
6451 (! PL_numeric_underlying && PL_numeric_standard < 2)
6453 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6454 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6456 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6459 ( ( IN_LC(LC_NUMERIC) && _NOT_IN_NUMERIC_UNDERLYING) \
6460 || (! IN_LC(LC_NUMERIC) && _NOT_IN_NUMERIC_STANDARD)));\
6461 if (IN_LC(LC_NUMERIC)) { \
6462 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6463 Perl_set_numeric_underlying(aTHX); \
6464 _restore_LC_NUMERIC_function \
6465 = &Perl_set_numeric_standard; \
6469 if (_NOT_IN_NUMERIC_STANDARD) { \
6470 Perl_set_numeric_standard(aTHX); \
6471 _restore_LC_NUMERIC_function \
6472 = &Perl_set_numeric_underlying; \
6477 # define RESTORE_LC_NUMERIC() \
6479 if (_restore_LC_NUMERIC_function) { \
6480 _restore_LC_NUMERIC_function(aTHX); \
6482 LC_NUMERIC_UNLOCK; \
6485 /* The next two macros set unconditionally. These should be rarely used, and
6486 * only after being sure that this is what is needed */
6487 # define SET_NUMERIC_STANDARD() \
6489 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6490 "%s: %d: lc_numeric standard=%d\n", \
6491 __FILE__, __LINE__, PL_numeric_standard)); \
6492 Perl_set_numeric_standard(aTHX); \
6493 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6494 "%s: %d: lc_numeric standard=%d\n", \
6495 __FILE__, __LINE__, PL_numeric_standard)); \
6498 # define SET_NUMERIC_UNDERLYING() \
6500 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6501 Perl_set_numeric_underlying(aTHX); \
6505 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6506 * the RESTORE_foo ones called to switch back, but only if need be */
6507 # define STORE_LC_NUMERIC_SET_STANDARD() \
6509 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6510 if (_NOT_IN_NUMERIC_STANDARD) { \
6511 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6512 Perl_set_numeric_standard(aTHX); \
6516 /* Rarely, we want to change to the underlying locale even outside of 'use
6517 * locale'. This is principally in the POSIX:: functions */
6518 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6520 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6521 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6522 Perl_set_numeric_underlying(aTHX); \
6523 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6527 /* Lock/unlock to the C locale until unlock is called. This needs to be
6528 * recursively callable. [perl #128207] */
6529 # define LOCK_LC_NUMERIC_STANDARD() \
6531 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6532 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6533 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6534 __ASSERT_(PL_numeric_standard) \
6535 PL_numeric_standard++; \
6538 # define UNLOCK_LC_NUMERIC_STANDARD() \
6540 if (PL_numeric_standard > 1) { \
6541 PL_numeric_standard--; \
6546 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6547 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6548 __FILE__, __LINE__, PL_numeric_standard)); \
6551 #else /* !USE_LOCALE_NUMERIC */
6553 # define SET_NUMERIC_STANDARD()
6554 # define SET_NUMERIC_UNDERLYING()
6555 # define IS_NUMERIC_RADIX(a, b) (0)
6556 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6557 # define STORE_LC_NUMERIC_SET_STANDARD()
6558 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6559 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6560 # define RESTORE_LC_NUMERIC()
6561 # define LOCK_LC_NUMERIC_STANDARD()
6562 # define UNLOCK_LC_NUMERIC_STANDARD()
6564 #endif /* !USE_LOCALE_NUMERIC */
6566 #define Atof my_atof
6567 #define Strtod my_strtod
6569 #if defined(HAS_STRTOD) \
6570 || defined(USE_QUADMATH) \
6571 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6572 && defined(USE_LONG_DOUBLE))
6573 # define Perl_strtod Strtod
6576 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6577 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6579 # define strtoll __strtoll /* secret handshake */
6581 # if defined(WIN64) && defined(_MSC_VER)
6582 # define strtoll _strtoi64 /* secret handshake */
6584 # if !defined(Strtol) && defined(HAS_STRTOLL)
6585 # define Strtol strtoll
6587 # if !defined(Strtol) && defined(HAS_STRTOQ)
6588 # define Strtol strtoq
6590 /* is there atoq() anywhere? */
6592 #if !defined(Strtol) && defined(HAS_STRTOL)
6593 # define Strtol strtol
6596 /* It would be more fashionable to use Strtol() to define atol()
6597 * (as is done for Atoul(), see below) but for backward compatibility
6598 * we just assume atol(). */
6599 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6600 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6602 # define atoll _atoi64 /* secret handshake */
6610 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6611 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6613 # define strtoull __strtoull /* secret handshake */
6615 # if defined(WIN64) && defined(_MSC_VER)
6616 # define strtoull _strtoui64 /* secret handshake */
6618 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6619 # define Strtoul strtoull
6621 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6622 # define Strtoul strtouq
6624 /* is there atouq() anywhere? */
6626 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6627 # define Strtoul strtoul
6629 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6630 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6633 # define Atoul(s) Strtoul(s, NULL, 10)
6636 #ifndef PERL_SCRIPT_MODE
6637 #define PERL_SCRIPT_MODE "r"
6640 /* not used. Kept as a NOOP for backcompat */
6641 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6644 * Some nonpreemptive operating systems find it convenient to
6645 * check for asynchronous conditions after each op execution.
6646 * Keep this check simple, or it may slow down execution
6651 # ifndef PERL_ASYNC_CHECK
6652 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6656 #ifndef PERL_ASYNC_CHECK
6657 # define PERL_ASYNC_CHECK() NOOP
6661 * On some operating systems, a memory allocation may succeed,
6662 * but put the process too close to the system's comfort limit.
6663 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6666 #ifndef PERL_ALLOC_CHECK
6667 #define PERL_ALLOC_CHECK(p) NOOP
6671 # include <sys/ipc.h>
6672 # include <sys/sem.h>
6673 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6676 struct semid_ds *buf;
6677 unsigned short *array;
6680 # ifdef USE_SEMCTL_SEMUN
6681 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6682 union gccbug_semun {
6684 struct semid_ds *buf;
6685 unsigned short *array;
6688 # define semun gccbug_semun
6690 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6691 # elif defined(USE_SEMCTL_SEMID_DS)
6692 # ifdef EXTRA_F_IN_SEMUN_BUF
6693 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6695 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6701 * Boilerplate macros for initializing and accessing interpreter-local
6702 * data from C. All statics in extensions should be reworked to use
6703 * this, if you want to make the extension thread-safe. See
6704 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6705 * and perlxs.pod for more.
6707 * Code that uses these macros is responsible for the following:
6708 * 1. #define MY_CXT_KEY to a unique string, e.g.
6709 * "DynaLoader::_guts" XS_VERSION
6710 * XXX in the current implementation, this string is ignored.
6711 * 2. Declare a typedef named my_cxt_t that is a structure that contains
6712 * all the data that needs to be interpreter-local.
6713 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
6714 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
6715 * (typically put in the BOOT: section).
6716 * 5. Use the members of the my_cxt_t structure everywhere as
6718 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
6722 #if defined(PERL_IMPLICIT_CONTEXT)
6724 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
6725 * right after the definition (i.e. at file scope). The non-threads
6726 * case below uses it to declare the data as static. */
6727 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
6728 # define START_MY_CXT
6729 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
6730 # define MY_CXT_INIT_ARG MY_CXT_KEY
6732 # define START_MY_CXT static int my_cxt_index = -1;
6733 # define MY_CXT_INDEX my_cxt_index
6734 # define MY_CXT_INIT_ARG &my_cxt_index
6735 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
6737 /* Creates and zeroes the per-interpreter data.
6738 * (We allocate my_cxtp in a Perl SV so that it will be released when
6739 * the interpreter goes away.) */
6740 # define MY_CXT_INIT \
6741 my_cxt_t *my_cxtp = \
6742 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6743 PERL_UNUSED_VAR(my_cxtp)
6744 # define MY_CXT_INIT_INTERP(my_perl) \
6745 my_cxt_t *my_cxtp = \
6746 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6747 PERL_UNUSED_VAR(my_cxtp)
6749 /* This declaration should be used within all functions that use the
6750 * interpreter-local data. */
6752 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
6753 # define dMY_CXT_INTERP(my_perl) \
6754 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6756 /* Clones the per-interpreter data. */
6757 # define MY_CXT_CLONE \
6758 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
6759 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
6760 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6761 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6765 /* This macro must be used to access members of the my_cxt_t structure.
6766 * e.g. MY_CXT.some_data */
6767 # define MY_CXT (*my_cxtp)
6769 /* Judicious use of these macros can reduce the number of times dMY_CXT
6770 * is used. Use is similar to pTHX, aTHX etc. */
6771 # define pMY_CXT my_cxt_t *my_cxtp
6772 # define pMY_CXT_ pMY_CXT,
6773 # define _pMY_CXT ,pMY_CXT
6774 # define aMY_CXT my_cxtp
6775 # define aMY_CXT_ aMY_CXT,
6776 # define _aMY_CXT ,aMY_CXT
6778 #else /* PERL_IMPLICIT_CONTEXT */
6780 # define START_MY_CXT static my_cxt_t my_cxt;
6781 # define dMY_CXT_SV dNOOP
6782 # define dMY_CXT dNOOP
6783 # define dMY_CXT_INTERP(my_perl) dNOOP
6784 # define MY_CXT_INIT NOOP
6785 # define MY_CXT_CLONE NOOP
6786 # define MY_CXT my_cxt
6788 # define pMY_CXT void
6795 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
6806 # undef FD_CLOEXEC /* a lie in AmigaOS */
6810 # include <sys/file.h>
6813 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
6814 int flock(int fd, int op);
6818 /* Assume UNIX defaults */
6819 # define O_RDONLY 0000
6820 # define O_WRONLY 0001
6821 # define O_RDWR 0002
6822 # define O_CREAT 0100
6833 #if O_TEXT != O_BINARY
6834 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6835 * that is, you are somehow DOSish. */
6836 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6837 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6838 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
6839 /* VOS has O_TEXT != O_BINARY, and they have effect,
6840 * but VOS always uses LF, never CRLF. */
6841 /* If you have O_TEXT different from your O_BINARY but you still are
6842 * not a CRLF shop. */
6843 # undef PERLIO_USING_CRLF
6845 /* If you really are DOSish. */
6846 # define PERLIO_USING_CRLF 1
6851 # include <libutil.h> /* setproctitle() in some FreeBSDs */
6854 #ifndef EXEC_ARGV_CAST
6855 #define EXEC_ARGV_CAST(x) (char **)x
6858 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6859 int). value returned in pointed-
6861 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
6862 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
6863 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
6864 #define IS_NUMBER_INFINITY 0x10 /* this is big */
6865 #define IS_NUMBER_NAN 0x20 /* this is not */
6866 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
6868 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6871 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
6872 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
6873 #define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
6874 #define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6875 numbers which are <= UV_MAX */
6876 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6877 and set IS_NUMBER_TRAILING */
6880 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6882 /* to let user control profiling */
6883 #ifdef PERL_GPROF_CONTROL
6884 extern void moncontrol(int);
6885 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6887 #define PERL_GPROF_MONCONTROL(x)
6890 /* ISO 6429 NEL - C1 control NExt Line */
6891 /* See http://www.unicode.org/unicode/reports/tr13/ */
6892 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
6894 #ifndef PIPESOCK_MODE
6895 # define PIPESOCK_MODE
6898 #ifndef SOCKET_OPEN_MODE
6899 # define SOCKET_OPEN_MODE PIPESOCK_MODE
6902 #ifndef PIPE_OPEN_MODE
6903 # define PIPE_OPEN_MODE PIPESOCK_MODE
6906 #define PERL_MAGIC_UTF8_CACHESIZE 2
6908 #define PERL_UNICODE_STDIN_FLAG 0x0001
6909 #define PERL_UNICODE_STDOUT_FLAG 0x0002
6910 #define PERL_UNICODE_STDERR_FLAG 0x0004
6911 #define PERL_UNICODE_IN_FLAG 0x0008
6912 #define PERL_UNICODE_OUT_FLAG 0x0010
6913 #define PERL_UNICODE_ARGV_FLAG 0x0020
6914 #define PERL_UNICODE_LOCALE_FLAG 0x0040
6915 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
6916 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
6918 #define PERL_UNICODE_STD_FLAG \
6919 (PERL_UNICODE_STDIN_FLAG | \
6920 PERL_UNICODE_STDOUT_FLAG | \
6921 PERL_UNICODE_STDERR_FLAG)
6923 #define PERL_UNICODE_INOUT_FLAG \
6924 (PERL_UNICODE_IN_FLAG | \
6925 PERL_UNICODE_OUT_FLAG)
6927 #define PERL_UNICODE_DEFAULT_FLAGS \
6928 (PERL_UNICODE_STD_FLAG | \
6929 PERL_UNICODE_INOUT_FLAG | \
6930 PERL_UNICODE_LOCALE_FLAG)
6932 #define PERL_UNICODE_ALL_FLAGS 0x01ff
6934 #define PERL_UNICODE_STDIN 'I'
6935 #define PERL_UNICODE_STDOUT 'O'
6936 #define PERL_UNICODE_STDERR 'E'
6937 #define PERL_UNICODE_STD 'S'
6938 #define PERL_UNICODE_IN 'i'
6939 #define PERL_UNICODE_OUT 'o'
6940 #define PERL_UNICODE_INOUT 'D'
6941 #define PERL_UNICODE_ARGV 'A'
6942 #define PERL_UNICODE_LOCALE 'L'
6943 #define PERL_UNICODE_WIDESYSCALLS 'W'
6944 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
6946 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6948 /* Use instead of abs() since abs() forces its argument to be an int,
6949 * but also beware since this evaluates its argument twice, so no x++. */
6950 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6952 #if defined(__DECC) && defined(__osf__)
6953 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
6956 #define do_open(g, n, l, a, rm, rp, sf) \
6957 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
6958 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
6959 # define do_exec(cmd) do_exec3(cmd,0,0)
6962 # define do_aexec Perl_do_aexec
6964 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
6967 /* check embedded \0 characters in pathnames passed to syscalls,
6968 but allow one ending \0 */
6969 #define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
6971 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
6973 #if defined(OEMVS) || defined(__amigaos4__)
6974 #define NO_ENV_ARRAY_IN_MAIN
6977 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
6978 * are here so that they are available throughout the core
6979 * NOTE that even though some are for _escape and some for _pretty
6980 * there must not be any clashes as the flags from _pretty are
6981 * passed straight through to _escape.
6984 #define PERL_PV_ESCAPE_QUOTE 0x000001
6985 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6987 #define PERL_PV_PRETTY_ELLIPSES 0x000002
6988 #define PERL_PV_PRETTY_LTGT 0x000004
6989 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
6991 #define PERL_PV_ESCAPE_UNI 0x000100
6992 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6993 #define PERL_PV_ESCAPE_NONASCII 0x000400
6994 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
6996 #define PERL_PV_ESCAPE_ALL 0x001000
6997 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6998 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
6999 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7000 #define PERL_PV_ESCAPE_RE 0x008000
7002 #define PERL_PV_ESCAPE_DWIM 0x010000
7005 /* used by pv_display in dump.c*/
7006 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7007 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7009 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7010 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7011 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7012 # define DOUBLE_IS_VAX_FLOAT
7014 # define DOUBLE_IS_IEEE_FORMAT
7017 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7018 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7019 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7020 # define DOUBLE_LITTLE_ENDIAN
7023 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7024 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7025 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7026 # define DOUBLE_BIG_ENDIAN
7029 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7030 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7031 # define DOUBLE_MIX_ENDIAN
7034 /* The VAX fp formats are neither consistently little-endian nor
7035 * big-endian, and neither are they really IEEE-mixed endian like
7036 * the mixed-endian ARM IEEE formats (with swapped bytes).
7037 * Ultimately, the VAX format came from the PDP-11.
7039 * The ordering of the parts in VAX floats is quite vexing.
7040 * In the below the fraction_n are the mantissa bits.
7042 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7043 * while the rightmost bit in each fraction is the least significant:
7044 * in other words, big-endian bit order within the fractions.
7046 * The fraction segments themselves would be big-endianly, except that
7047 * within 32 bit segments the less significant half comes first, the more
7048 * significant after, except that in the format H (used for long doubles)
7049 * the first fraction segment is alone, because the exponent is wider.
7050 * This means for example that both the most and the least significant
7051 * bits can be in the middle of the floats, not at either end.
7054 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7055 * http://www.quadibloc.com/comp/cp0201.htm
7056 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7057 * (somebody at HP should be fired for the URLs)
7059 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7060 * (exponent bias 128, hidden first one-bit)
7062 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7063 * fraction_4:16 fraction_3:16
7064 * (exponent bias 128, hidden first one-bit)
7066 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7067 * fraction_4:16 fraction_3:16
7068 * (exponent bias 1024, hidden first one-bit)
7070 * H fraction_1:16 sign:1 exp:15
7071 * fraction_3:16 fraction_2:16
7072 * fraction_5:16 fraction_4:16
7073 * fraction_7:16 fraction_6:16
7074 * (exponent bias 16384, hidden first one-bit)
7075 * (available only on VAX, and only on Fortran?)
7077 * The formats S, T and X are available on the Alpha (and Itanium,
7078 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7079 * binary32, binary64, and binary128 (commonly: float, double, long double).
7081 * S sign:1 exp:8 mantissa:23
7082 * (exponent bias 127, hidden first one-bit)
7084 * T sign:1 exp:11 mantissa:52
7085 * (exponent bias 1022, hidden first one-bit)
7087 * X sign:1 exp:15 mantissa:112
7088 * (exponent bias 16382, hidden first one-bit)
7092 #ifdef DOUBLE_IS_VAX_FLOAT
7093 # define DOUBLE_VAX_ENDIAN
7096 #ifdef DOUBLE_IS_IEEE_FORMAT
7097 /* All the basic IEEE formats have the implicit bit,
7098 * except for the x86 80-bit extended formats, which will undef this.
7099 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7100 * do not have the implicit bit of one. */
7101 # define NV_IMPLICIT_BIT
7104 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7106 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7107 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7108 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7109 # define LONGDOUBLE_LITTLE_ENDIAN
7112 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7113 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7114 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7115 # define LONGDOUBLE_BIG_ENDIAN
7118 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7119 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7120 # define LONGDOUBLE_MIX_ENDIAN
7123 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7124 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7125 # define LONGDOUBLE_X86_80_BIT
7126 # ifdef USE_LONG_DOUBLE
7127 # undef NV_IMPLICIT_BIT
7128 # define NV_X86_80_BIT
7132 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7133 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7134 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7135 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7136 # define LONGDOUBLE_DOUBLEDOUBLE
7139 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7140 # define LONGDOUBLE_VAX_ENDIAN
7143 #endif /* LONG_DOUBLEKIND */
7145 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7146 # if defined(DOUBLE_LITTLE_ENDIAN)
7147 # define NV_LITTLE_ENDIAN
7148 # elif defined(DOUBLE_BIG_ENDIAN)
7149 # define NV_BIG_ENDIAN
7150 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7151 # define NV_MIX_ENDIAN
7153 #elif NVSIZE == DOUBLESIZE
7154 # ifdef DOUBLE_LITTLE_ENDIAN
7155 # define NV_LITTLE_ENDIAN
7157 # ifdef DOUBLE_BIG_ENDIAN
7158 # define NV_BIG_ENDIAN
7160 # ifdef DOUBLE_MIX_ENDIAN
7161 # define NV_MIX_ENDIAN
7163 # ifdef DOUBLE_VAX_ENDIAN
7164 # define NV_VAX_ENDIAN
7166 #elif NVSIZE == LONG_DOUBLESIZE
7167 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7168 # define NV_LITTLE_ENDIAN
7170 # ifdef LONGDOUBLE_BIG_ENDIAN
7171 # define NV_BIG_ENDIAN
7173 # ifdef LONGDOUBLE_MIX_ENDIAN
7174 # define NV_MIX_ENDIAN
7176 # ifdef LONGDOUBLE_VAX_ENDIAN
7177 # define NV_VAX_ENDIAN
7181 /* We have somehow managed not to define the denormal/subnormal
7184 * This may happen if the compiler doesn't expose the C99 math like
7185 * the fpclassify() without some special switches. Perl tries to
7186 * stay C89, so for example -std=c99 is not an option.
7188 * The Perl_isinf() and Perl_isnan() should have been defined even if
7189 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7190 * from the C89 DBL_MIN or moral equivalent. */
7191 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7192 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7195 /* This is not a great fallback: subnormals tests will fail,
7196 * but at least Perl will link and 99.999% of tests will work. */
7197 #if !defined(Perl_fp_class_denorm)
7198 # define Perl_fp_class_denorm(x) FALSE
7201 #ifdef DOUBLE_IS_IEEE_FORMAT
7202 # define DOUBLE_HAS_INF
7203 # define DOUBLE_HAS_NAN
7206 #ifdef DOUBLE_HAS_NAN
7212 /* PL_inf and PL_nan initialization.
7214 * For inf and nan initialization the ultimate fallback is dividing
7215 * one or zero by zero: however, some compilers will warn or even fail
7216 * on divide-by-zero, but hopefully something earlier will work.
7218 * If you are thinking of using HUGE_VAL for infinity, or using
7219 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7220 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7221 * and the math functions might be just generating DBL_MAX, or even zero.
7223 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7224 * Though logically correct, some compilers (like Visual C 2003)
7225 * falsely misoptimize that to zero (x-x is always zero, right?)
7227 * Finally, note that not all floating point formats define Inf (or NaN).
7228 * For the infinity a large number may be used instead. Operations that
7229 * under the IEEE floating point would return Inf or NaN may return
7230 * either large numbers (positive or negative), or they may cause
7231 * a floating point exception or some other fault.
7234 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7235 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7237 # ifdef USE_QUADMATH
7238 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7240 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7241 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7242 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7243 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7244 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7246 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7247 # if defined(LDBL_INFINITY)
7248 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7249 # elif defined(LDBL_INF)
7250 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7251 # elif defined(INFINITY)
7252 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7254 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7256 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7259 # if defined(DBL_INFINITY)
7260 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7261 # elif defined(DBL_INF)
7262 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7263 # elif defined(INFINITY) /* C99 */
7264 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7266 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7268 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7273 # ifdef USE_QUADMATH
7274 /* Cannot use nanq("0") for PL_nan because not a compile-time
7276 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7277 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7278 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7279 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7280 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7282 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7283 # if defined(LDBL_NAN)
7284 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7285 # elif defined(LDBL_QNAN)
7286 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7288 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7290 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7293 # if defined(DBL_NAN)
7294 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7295 # elif defined(DBL_QNAN)
7296 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7297 # elif defined(NAN) /* C99 */
7298 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7300 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7305 GCC_DIAG_RESTORE_DECL;
7309 INFNAN_NV_U8_DECL PL_inf;
7310 INFNAN_NV_U8_DECL PL_nan;
7316 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7317 * we will define NV_INF/NV_NAN as the nv part of the global const
7318 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7319 * might not be a compile-time constant, in which case it cannot be
7320 * used to initialize PL_inf/PL_nan above. */
7322 # define NV_INF PL_inf.nv
7325 # define NV_NAN PL_nan.nv
7328 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7329 * "nan-ness". Part of the payload is the quiet/signaling bit.
7330 * To back up a bit (harhar):
7332 * For IEEE 754 64-bit formats [1]:
7334 * s 000 (mantissa all-zero) zero
7335 * s 000 (mantissa non-zero) subnormals (denormals)
7336 * s 001 ... 7fe normals
7339 * For IEEE 754 128-bit formats:
7341 * s 0000 (mantissa all-zero) zero
7342 * s 0000 (mantissa non-zero) subnormals (denormals)
7343 * s 0001 ... 7ffe normals
7346 * [1] this looks like big-endian, but applies equally to little-endian.
7348 * s = Sign bit. Yes, zeros and nans can have negative sign,
7349 * the interpretation is application-specific.
7351 * q = Quietness bit, the interpretation is platform-specific.
7352 * Most platforms have the most significant bit being one
7353 * meaning quiet, but some (older mips, hppa) have the msb
7354 * being one meaning signaling. Note that the above means
7355 * that on most platforms there cannot be signaling nan with
7356 * zero payload because that is identical with infinity;
7357 * while conversely on older mips/hppa there cannot be a quiet nan
7358 * because that is identical with infinity.
7360 * Moreover, whether there is any behavioral difference
7361 * between quiet and signaling NaNs, depends on the platform.
7363 * x86 80-bit extended precision is different, the mantissa bits:
7365 * 63 62 61 30387+ pre-387 visual c
7366 * -------- ---- -------- --------
7367 * 0 0 0 invalid infinity
7368 * 0 0 1 invalid snan
7369 * 0 1 0 invalid snan
7370 * 0 1 1 invalid snan
7371 * 1 0 0 infinity snan 1.#INF
7372 * 1 0 1 snan 1.#SNAN
7373 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7374 * 1 1 1 qnan 1.#QNAN
7376 * This means that in this format there are 61 bits available
7377 * for the nan payload.
7379 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7380 * simply cannot preserve the bit. You can either use the 80-bit
7381 * extended precision (long double, -Duselongdouble), or use x86-64.
7383 * In all platforms, the payload bytes (and bits, some of them are
7384 * often in a partial byte) themselves can be either all zero (x86),
7385 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7386 * or in a double-double, the first half of the payload can follow the
7387 * native double, while in the second half the payload can be all
7388 * zeros. (Therefore the mask for payload bits is not necessarily
7389 * identical to bit complement of the NaN.) Another way of putting
7390 * this: the payload for the default NaN might not be zero.
7392 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7393 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7396 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7397 * On normal floats, the sign bit being on means negative. But this may,
7398 * or may not, be reverted on NaNs: in other words, the default NaN might
7399 * have the sign bit on, and therefore look like negative if you look
7400 * at it at the bit level.
7402 * NaN payloads are not propagated even on copies, or in arithmetics.
7403 * They *might* be, according to some rules, on your particular
7404 * cpu/os/compiler/libraries, but no guarantees.
7406 * To summarize, on most platforms, and for 64-bit doubles
7407 * (using big-endian ordering here):
7409 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7410 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7411 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7412 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7414 * The C99 nan() is supposed to generate *quiet* NaNs.
7416 * Note the asymmetry:
7417 * The 7FF0000000000000 is positive infinity,
7418 * the FFF0000000000000 is negative infinity.
7421 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7422 * For the standard IEEE 754 fp this number is usually one less that
7423 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7424 * real. For the 80-bit extended precision formats (x86*), the number
7425 * of mantissa bits... depends. For normal floats, it's 64. But for
7426 * the inf/nan, it's different (zero for inf, 61 for nan).
7427 * NVMANTBITS works for normal floats. */
7429 /* We do not want to include the quiet/signaling bit. */
7430 #define NV_NAN_BITS (NVMANTBITS - 1)
7432 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7433 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7434 # define NV_NAN_QS_BYTE_OFFSET 13
7435 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7436 # define NV_NAN_QS_BYTE_OFFSET 2
7437 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7438 # define NV_NAN_QS_BYTE_OFFSET 7
7439 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7440 # define NV_NAN_QS_BYTE_OFFSET 2
7441 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7442 # define NV_NAN_QS_BYTE_OFFSET 13
7443 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7444 # define NV_NAN_QS_BYTE_OFFSET 1
7445 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7446 # define NV_NAN_QS_BYTE_OFFSET 9
7447 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7448 # define NV_NAN_QS_BYTE_OFFSET 6
7450 # error "Unexpected long double format"
7453 # ifdef USE_QUADMATH
7454 # ifdef NV_LITTLE_ENDIAN
7455 # define NV_NAN_QS_BYTE_OFFSET 13
7456 # elif defined(NV_BIG_ENDIAN)
7457 # define NV_NAN_QS_BYTE_OFFSET 2
7459 # error "Unexpected quadmath format"
7461 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7462 # define NV_NAN_QS_BYTE_OFFSET 2
7463 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7464 # define NV_NAN_QS_BYTE_OFFSET 1
7465 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7466 # define NV_NAN_QS_BYTE_OFFSET 6
7467 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7468 # define NV_NAN_QS_BYTE_OFFSET 1
7469 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7470 # define NV_NAN_QS_BYTE_OFFSET 13
7471 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7472 # define NV_NAN_QS_BYTE_OFFSET 2
7473 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7474 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7475 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7476 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7478 /* For example the VAX formats should never
7479 * get here because they do not have NaN. */
7480 # error "Unexpected double format"
7483 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7484 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7485 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7486 * for the quiet/signaling */
7487 #if defined(USE_LONG_DOUBLE) && \
7488 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7489 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7490 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7491 #elif defined(USE_LONG_DOUBLE) && \
7492 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7493 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7494 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7495 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7496 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7498 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7500 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7501 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7502 * (bytes ordered big-endianly) for the quiet/signaling bit
7503 * for the quiet/signaling */
7504 #define NV_NAN_QS_BIT_OFFSET \
7505 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7506 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7507 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7508 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7509 #define NV_NAN_QS_QUIET \
7510 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7511 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7512 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7513 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7514 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7515 * Note however that these do not check whether the nvp is a NaN. */
7516 #define NV_NAN_IS_QUIET(nvp) \
7517 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7518 #define NV_NAN_IS_SIGNALING(nvp) \
7519 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7520 #define NV_NAN_SET_QUIET(nvp) \
7521 (NV_NAN_QS_QUIET ? \
7522 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7523 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7524 #define NV_NAN_SET_SIGNALING(nvp) \
7525 (NV_NAN_QS_QUIET ? \
7526 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7527 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7528 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7530 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7532 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7533 * 0xFF means "don't go here".*/
7535 /* Shorthands to avoid typoses. */
7536 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7537 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7538 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7539 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7540 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7541 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7542 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7543 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7544 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7545 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7546 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7547 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7548 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7549 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7550 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7551 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7552 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7553 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7554 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7555 NV_NAN_PAYLOAD_PERM_7_TO_0
7556 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7557 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7558 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7559 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7560 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7561 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7562 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7563 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7565 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7566 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7567 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7568 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7569 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7570 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7571 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7572 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7573 # if LONG_DOUBLESIZE == 10
7574 # define NV_NAN_PAYLOAD_MASK \
7575 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7577 # define NV_NAN_PAYLOAD_PERM \
7578 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7579 # elif LONG_DOUBLESIZE == 12
7580 # define NV_NAN_PAYLOAD_MASK \
7581 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7582 0x00, 0x00, 0x00, 0x00
7583 # define NV_NAN_PAYLOAD_PERM \
7584 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7585 # elif LONG_DOUBLESIZE == 16
7586 # define NV_NAN_PAYLOAD_MASK \
7587 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7588 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7589 # define NV_NAN_PAYLOAD_PERM \
7590 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7591 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7593 # error "Unexpected x86 80-bit little-endian long double format"
7595 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7596 # if LONG_DOUBLESIZE == 10
7597 # define NV_NAN_PAYLOAD_MASK \
7598 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7600 # define NV_NAN_PAYLOAD_PERM \
7601 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7602 # elif LONG_DOUBLESIZE == 12
7603 # define NV_NAN_PAYLOAD_MASK \
7604 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7605 0xff, 0xff, 0x00, 0x00
7606 # define NV_NAN_PAYLOAD_PERM \
7607 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7608 # elif LONG_DOUBLESIZE == 16
7609 # define NV_NAN_PAYLOAD_MASK \
7610 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7611 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7612 # define NV_NAN_PAYLOAD_PERM \
7613 NV_NAN_PAYLOAD_PERM_7_TO_0, \
7614 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7616 # error "Unexpected x86 80-bit big-endian long double format"
7618 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7619 /* For double-double we assume only the first double (in LE or BE terms)
7620 * is used for NaN. */
7621 # define NV_NAN_PAYLOAD_MASK \
7622 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7623 # define NV_NAN_PAYLOAD_PERM \
7624 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7625 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7626 # define NV_NAN_PAYLOAD_MASK \
7627 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7628 # define NV_NAN_PAYLOAD_PERM \
7629 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7630 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7631 # define NV_NAN_PAYLOAD_MASK \
7632 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7633 # define NV_NAN_PAYLOAD_PERM \
7634 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7635 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7636 # define NV_NAN_PAYLOAD_MASK \
7637 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7638 # define NV_NAN_PAYLOAD_PERM \
7639 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7641 # error "Unexpected long double format"
7644 # ifdef USE_QUADMATH /* quadmath is not long double */
7645 # ifdef NV_LITTLE_ENDIAN
7646 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7647 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7648 # elif defined(NV_BIG_ENDIAN)
7649 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7650 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7652 # error "Unexpected quadmath format"
7654 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7655 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
7656 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
7657 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7658 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
7659 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
7660 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7661 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7662 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7663 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7664 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7665 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7666 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7667 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7668 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7669 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7670 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7671 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7672 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7673 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
7674 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
7675 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7676 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
7677 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
7679 # error "Unexpected double format"
7683 #endif /* DOUBLE_HAS_NAN */
7688 (KEEP THIS LAST IN perl.h!)
7730 so that Configure picks them up.
7732 (KEEP THIS LAST IN perl.h!)
7736 #endif /* Include guard */
7739 * ex: set ts=8 sts=4 sw=4 et: