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 /* 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 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
113 # define USE_REENTRANT_API
116 /* <--- here ends the logic shared by perl.h and makedef.pl */
118 /* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
119 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
123 #undef START_EXTERN_C
127 # define START_EXTERN_C extern "C" {
128 # define END_EXTERN_C }
129 # define EXTERN_C extern "C"
131 # define START_EXTERN_C
132 # define END_EXTERN_C
133 # define EXTERN_C extern
136 /* Fallback definitions in case we don't have definitions from config.h.
137 This should only matter for systems that don't use Configure and
138 haven't been modified to define PERL_STATIC_INLINE yet.
140 #if !defined(PERL_STATIC_INLINE)
141 # ifdef HAS_STATIC_INLINE
142 # define PERL_STATIC_INLINE static inline
144 # define PERL_STATIC_INLINE static
148 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
149 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
150 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
151 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
153 # define PERL_GET_VARS() PL_VarsPtr
157 /* this used to be off by default, now its on, see perlio.h */
158 #define PERLIO_FUNCS_CONST
160 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
162 #ifdef PERL_GLOBAL_STRUCT
163 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
168 #ifdef PERL_IMPLICIT_CONTEXT
169 # ifndef MULTIPLICITY
170 # define MULTIPLICITY
172 # define tTHX PerlInterpreter*
173 # define pTHX tTHX my_perl PERL_UNUSED_DECL
174 # define aTHX my_perl
175 # define aTHXa(a) aTHX = (tTHX)a
176 # ifdef PERL_GLOBAL_STRUCT
177 # define dTHXa(a) dVAR; pTHX = (tTHX)a
179 # define dTHXa(a) pTHX = (tTHX)a
181 # ifdef PERL_GLOBAL_STRUCT
182 # define dTHX dVAR; pTHX = PERL_GET_THX
184 # define dTHX pTHX = PERL_GET_THX
198 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
199 # define PERL_TRACK_MEMPOOL
202 # undef PERL_TRACK_MEMPOOL
205 #define STATIC static
208 /* Do not use these macros. They were part of PERL_OBJECT, which was an
209 * implementation of multiplicity using C++ objects. They have been left
210 * here solely for the sake of XS code which has incorrectly
213 #define CPERLscope(x) x
214 #define CPERLarg void
217 #define PERL_OBJECT_THIS
218 #define _PERL_OBJECT_THIS
219 #define PERL_OBJECT_THIS_
220 #define CALL_FPTR(fptr) (*fptr)
221 #define MEMBER_TO_FPTR(name) name
222 #endif /* !PERL_CORE */
224 #define CALLRUNOPS PL_runops
226 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
228 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
229 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
230 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
231 (strbeg),(minend),(sv),(data),(flags))
232 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
233 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
234 (strend),(flags),(data))
235 #define CALLREG_INTUIT_STRING(prog) \
236 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
238 #define CALLREGFREE(prog) \
239 Perl_pregfree(aTHX_ (prog))
241 #define CALLREGFREE_PVT(prog) \
242 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
244 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
245 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
247 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
248 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
250 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
251 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
253 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
256 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
257 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
259 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
260 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
262 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
263 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
265 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
266 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
268 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
269 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
271 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
272 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
274 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
275 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
277 #define CALLREG_NAMED_BUFF_COUNT(rx) \
278 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
280 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
281 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
283 #define CALLREG_PACKAGE(rx) \
284 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
286 #if defined(USE_ITHREADS)
287 #define CALLREGDUPE(prog,param) \
288 Perl_re_dup(aTHX_ (prog),(param))
290 #define CALLREGDUPE_PVT(prog,param) \
291 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
300 * Because of backward compatibility reasons the PERL_UNUSED_DECL
301 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
303 * Note that there are C compilers such as MetroWerks CodeWarrior
304 * which do not have an "inlined" way (like the gcc __attribute__) of
305 * marking unused variables (they need e.g. a #pragma) and therefore
306 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
307 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
311 #if defined(__SYMBIAN32__) && defined(__GNUC__)
313 # define PERL_UNUSED_DECL
315 # define PERL_UNUSED_DECL __attribute__((unused))
319 #ifndef PERL_UNUSED_DECL
320 # if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || __GNUC__ >= 4)
321 # define PERL_UNUSED_DECL __attribute__unused__
323 # define PERL_UNUSED_DECL
328 * for silencing unused variables that are actually used most of the time,
329 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
330 * or variables/arguments that are used only in certain configurations.
332 #ifndef PERL_UNUSED_ARG
333 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
335 #ifndef PERL_UNUSED_VAR
336 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
339 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
340 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
342 # define PERL_UNUSED_CONTEXT
345 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
346 * g++ allows them but seems to have problems with them
347 * (insane errors ensue).
348 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
350 #if defined(PERL_GCC_PEDANTIC) || \
351 (defined(__GNUC__) && defined(__cplusplus) && \
352 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
353 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
354 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
358 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
359 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
361 * The main reason for this is that the combination of gcc -Wunused-result
362 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
363 * be silenced with casting to void. This causes trouble when the system
364 * header files use the attribute.
366 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
367 * is there for a good reason: you might lose success/failure information,
368 * or leak resources, or changes in resources.
370 * But sometimes you just want to ignore the return value, e.g. on
371 * codepaths soon ending up in abort, or in "best effort" attempts,
372 * or in situations where there is no good way to handle failures.
374 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
375 * another possibility is that you can capture the return value
376 * and use PERL_UNUSED_VAR on that.
378 * The __typeof__() is used instead of typeof() since typeof() is not
379 * available under strict C89, and because of compilers masquerading
380 * as gcc (clang and icc), we want exactly the gcc extension
381 * __typeof__ and nothing else.
383 #ifndef PERL_UNUSED_RESULT
384 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
385 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
387 # define PERL_UNUSED_RESULT(v) ((void)(v))
391 /* on gcc (and clang), specify that a warning should be temporarily
394 * GCC_DIAG_IGNORE(-Wmultichar);
398 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
400 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
401 * clang only pretends to be GCC 4.2, but still supports push/pop.
403 * Note on usage: on non-gcc (or lookalike, like clang) compilers
404 * one cannot use these with a semicolon at file (global) level without
405 * warnings since they are defined as empty, which leads into the terminating
406 * semicolon being left alone on a line:
408 * which makes compilers mildly cranky. Therefore at file level one
409 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE macros *without*
412 * (A dead-on-arrival solution would be to try to define the macros as
413 * NOOP or dNOOP, those don't work both inside functions and outside.)
416 #if defined(__clang__) || defined(__clang) || \
417 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
418 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
419 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
420 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
421 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
422 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
424 # define GCC_DIAG_IGNORE(w)
425 # define GCC_DIAG_RESTORE
427 /* for clang specific pragmas */
428 #if defined(__clang__) || defined(__clang)
429 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
430 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
431 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
432 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
434 # define CLANG_DIAG_IGNORE(w)
435 # define CLANG_DIAG_RESTORE
438 #define NOOP /*EMPTY*/(void)0
439 /* cea2e8a9dd23747f accidentally lost the comment originally from the first
440 check in of thread.h, explaining why we need dNOOP at all: */
441 /* Rats: if dTHR is just blank then the subsequent ";" throws an error */
442 /* Declaring a *function*, instead of a variable, ensures that we don't rely
443 on being able to suppress "unused" warnings. */
445 #define dNOOP (void)0
447 #define dNOOP extern int Perl___notused(void)
451 /* Don't bother defining tTHX ; using it outside
452 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
458 # define aTHXa(a) NOOP
459 # define dTHXa(a) dNOOP
477 /* these are only defined for compatibility; should not be used internally */
478 #if !defined(pTHXo) && !defined(PERL_CORE)
480 # define pTHXo_ pTHX_
482 # define aTHXo_ aTHX_
484 # define dTHXoa(x) dTHXa(x)
488 # define pTHXx PerlInterpreter *my_perl
489 # define pTHXx_ pTHXx,
490 # define aTHXx my_perl
491 # define aTHXx_ aTHXx,
495 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
496 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
497 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
498 #ifdef PERL_IMPLICIT_SYS
499 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
500 # define dTHXs dVAR; dTHX
505 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
512 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
513 # ifndef PERL_USE_GCC_BRACE_GROUPS
514 # define PERL_USE_GCC_BRACE_GROUPS
519 * STMT_START { statements; } STMT_END;
520 * can be used as a single statement, as in
521 * if (x) STMT_START { ... } STMT_END; else ...
523 * Trying to select a version that gives no warnings...
525 #if !(defined(STMT_START) && defined(STMT_END))
526 # ifdef PERL_USE_GCC_BRACE_GROUPS
527 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
530 # define STMT_START do
531 # define STMT_END while (0)
535 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
536 # define BYTEORDER 0x1234
539 /* Overall memory policy? */
544 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
551 * The following contortions are brought to you on behalf of all the
552 * standards, semi-standards, de facto standards, not-so-de-facto standards
553 * of the world, as well as all the other botches anyone ever thought of.
554 * The basic theory is that if we work hard enough here, the rest of the
555 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
558 /* define this once if either system, instead of cluttering up the src */
559 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
563 /* These exist only for back-compat with XS modules. */
566 #define CAN_PROTOTYPE
573 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
574 * you get a perl without taint support, but doubtlessly with a lesser
575 * degree of support. Do not do so unless you know exactly what it means
576 * technically, have a good reason to do so, and know exactly how the
577 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
578 * a potential security risk due to flat out ignoring the security-relevant
579 * taint flags. This being said, a perl without taint support compiled in
580 * has marginal run-time performance benefits.
581 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
582 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
583 * silently ignores -t/-T instead of throwing an exception.
585 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
586 * voids your nonexistent warranty!
588 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
589 # define NO_TAINT_SUPPORT 1
592 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
593 * operations into no-ops for a very modest speed-up. Enable only if you
594 * know what you're doing: tests and CPAN modules' tests are bound to fail.
596 #ifdef NO_TAINT_SUPPORT
598 # define TAINT_NOT NOOP
599 # define TAINT_IF(c) NOOP
600 # define TAINT_ENV() NOOP
601 # define TAINT_PROPER(s) NOOP
602 # define TAINT_set(s) NOOP
604 # define TAINTING_get 0
605 # define TAINTING_set(s) NOOP
606 # define TAINT_WARN_get 0
607 # define TAINT_WARN_set(s) NOOP
609 # define TAINT (PL_tainted = PL_tainting)
610 # define TAINT_NOT (PL_tainted = FALSE)
611 # define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = PL_tainting; }
612 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
613 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
614 # define TAINT_set(s) (PL_tainted = (s))
615 # define TAINT_get (PL_tainted)
616 # define TAINTING_get (PL_tainting)
617 # define TAINTING_set(s) (PL_tainting = (s))
618 # define TAINT_WARN_get (PL_taint_warn)
619 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
622 /* flags used internally only within pp_subst and pp_substcont */
624 # define SUBST_TAINT_STR 1 /* string tainted */
625 # define SUBST_TAINT_PAT 2 /* pattern tainted */
626 # define SUBST_TAINT_REPL 4 /* replacement tainted */
627 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
628 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
631 /* XXX All process group stuff is handled in pp_sys.c. Should these
632 defines move there? If so, I could simplify this a lot. --AD 9/96.
634 /* Process group stuff changed from traditional BSD to POSIX.
635 perlfunc.pod documents the traditional BSD-style syntax, so we'll
636 try to preserve that, if possible.
639 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
640 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
641 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
642 #elif defined(HAS_SETPGRP2)
643 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
645 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
646 # define HAS_SETPGRP /* Well, effectively it does . . . */
649 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
650 our life easier :-) so we'll try it.
653 # define BSD_GETPGRP(pid) getpgid((pid))
654 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
655 # define BSD_GETPGRP(pid) getpgrp((pid))
656 #elif defined(HAS_GETPGRP2)
657 # define BSD_GETPGRP(pid) getpgrp2((pid))
659 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
660 # define HAS_GETPGRP /* Well, effectively it does . . . */
663 /* These are not exact synonyms, since setpgrp() and getpgrp() may
664 have different behaviors, but perl.h used to define USE_BSDPGRP
665 (prior to 5.003_05) so some extension might depend on it.
667 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
673 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
674 pthread.h must be included before all other header files.
676 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
677 # include <pthread.h>
680 #include <sys/types.h>
682 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
683 which is included from stdarg.h. Bad definition not present in SD 2008
684 SDK headers. wince.h is not yet included, so we cant fix this from there
685 since by then MB_CUR_MAX will be defined from stdlib.h.
686 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
687 since cewchar.h can't be included this early */
688 #if defined(UNDER_CE) && (_MSC_VER < 1300)
689 # define MB_CUR_MAX 1uL
702 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
715 # include <xlocale.h>
718 #if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
720 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
722 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
723 && defined(HAS_STRXFRM)
724 # define USE_LOCALE_COLLATE
726 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
727 # define USE_LOCALE_CTYPE
729 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
730 # define USE_LOCALE_NUMERIC
732 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
733 # define USE_LOCALE_MESSAGES
735 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
736 # define USE_LOCALE_MONETARY
738 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
739 # define USE_LOCALE_TIME
741 #endif /* !NO_LOCALE && HAS_SETLOCALE */
746 # ifdef PARAM_NEEDS_TYPES
747 # include <sys/types.h>
749 # include <sys/param.h>
752 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
753 value something like 199306. This may be useful if no more-specific
754 feature test is available.
762 /* Use all the "standard" definitions */
765 /* If this causes problems, set i_unistd=undef in the hint file. */
767 # if defined(__amigaos4__)
769 # include <netinet/in.h>
773 # if defined(__amigaos4__)
774 /* Under AmigaOS 4 newlib.library provides an environ. However using
775 * it doesn't give us enough control over inheritance of variables by
776 * subshells etc. so replace with custom version based on abc-shell
778 extern char **myenviron;
780 # define environ myenviron
786 # include <sys/wait.h>
790 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
793 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
794 EXTERN_C int syscall(int, ...);
797 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
798 EXTERN_C int usleep(unsigned int);
803 /* macros for correct constant construction */
805 # define U16_CONST(x) ((U16)x##U)
807 # define U16_CONST(x) ((U16)x##UL)
811 # define U32_CONST(x) ((U32)x##U)
813 # define U32_CONST(x) ((U32)x##UL)
818 # define U64_CONST(x) ((U64)x##U)
820 # define U64_CONST(x) ((U64)x##UL)
821 # elif QUADKIND == QUAD_IS_LONG_LONG
822 # define U64_CONST(x) ((U64)x##ULL)
823 # elif QUADKIND == QUAD_IS___INT64
824 # define U64_CONST(x) ((U64)x##UI64)
825 # else /* best guess we can make */
826 # define U64_CONST(x) ((U64)x##UL)
830 /* byte-swapping functions for big-/little-endian conversion */
831 # define _swab_16_(x) ((U16)( \
832 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
833 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
835 # define _swab_32_(x) ((U32)( \
836 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
837 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
838 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
839 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
842 # define _swab_64_(x) ((U64)( \
843 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
844 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
845 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
846 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
847 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
848 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
849 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
850 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
853 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
854 at least on FreeBSD. YMMV, so experiment. */
855 #ifndef PERL_ARENA_SIZE
856 #define PERL_ARENA_SIZE 4080
859 /* Maximum level of recursion */
860 #ifndef PERL_SUB_DEPTH_WARN
861 #define PERL_SUB_DEPTH_WARN 100
864 #endif /* PERL_CORE */
866 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
867 * It determines the size of local arrays in S_maybe_multiconcat() and
870 #define PERL_MULTICONCAT_MAXARG 64
872 /* The indexes of fields of a multiconcat aux struct.
873 * The fixed fields are followed by nargs+1 const segment lengths,
874 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
877 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
878 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
879 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
880 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
881 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
882 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
883 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
884 multiconcat header */
886 /* We no longer default to creating a new SV for GvSV.
887 Do this before embed. */
888 #ifndef PERL_CREATE_GVSV
889 # ifndef PERL_DONT_CREATE_GVSV
890 # define PERL_DONT_CREATE_GVSV
894 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
895 #define PERL_USES_PL_PIDSTATUS
898 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
899 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
902 #define MEM_SIZE Size_t
904 /* Round all values passed to malloc up, by default to a multiple of
907 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
908 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
911 /* sv_grow() will expand strings by at least a certain percentage of
912 the previously *used* length to avoid excessive calls to realloc().
913 The default is 25% of the current length.
915 #ifndef PERL_STRLEN_EXPAND_SHIFT
916 # define PERL_STRLEN_EXPAND_SHIFT 2
920 #define STRUCT_OFFSET(s,m) offsetof(s,m)
922 /* ptrdiff_t is C11, so undef it under pedantic builds */
923 #ifdef PERL_GCC_PEDANTIC
924 # undef HAS_PTRDIFF_T
927 #ifndef __SYMBIAN32__
931 /* This comes after <stdlib.h> so we don't try to change the standard
932 * library prototypes; we'll use our own in proto.h instead. */
935 # ifdef PERL_POLLUTE_MALLOC
936 # ifndef PERL_EXTMALLOC_DEF
937 # define Perl_malloc malloc
938 # define Perl_calloc calloc
939 # define Perl_realloc realloc
940 # define Perl_mfree free
943 # define EMBEDMYMALLOC /* for compatibility */
946 # define safemalloc Perl_malloc
947 # define safecalloc Perl_calloc
948 # define saferealloc Perl_realloc
949 # define safefree Perl_mfree
950 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
951 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
954 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
955 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
956 # define panic_write2(s) write(2, s, strlen(s))
957 # define CHECK_MALLOC_TAINT(newval) \
958 CHECK_MALLOC_TOO_LATE_FOR_( \
960 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
962 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
963 if (doing_taint(argc,argv,env)) { \
964 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
967 # define safemalloc safesysmalloc
968 # define safecalloc safesyscalloc
969 # define saferealloc safesysrealloc
970 # define safefree safesysfree
971 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
972 # define CHECK_MALLOC_TAINT(newval) ((void)0)
973 # define MALLOC_CHECK_TAINT(argc,argv,env)
974 #endif /* MYMALLOC */
976 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
977 #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)
978 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
979 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
980 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
983 # define memzero(d,l) memset(d,0,l)
987 # include <netinet/in.h>
991 # include <arpa/inet.h>
995 # include <sys/stat.h>
998 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
999 This definition should ideally go into win32/win32.h, but S_IFIFO is
1000 used later here in perl.h before win32/win32.h is being included. */
1001 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1002 # define S_IFIFO _S_IFIFO
1005 /* The stat macros for Unisoft System V/88 (and derivatives
1006 like UTekV) are broken, sometimes giving false positives. Undefine
1007 them here and let the code below set them to proper values.
1009 The ghs macro stands for GreenHills Software C-1.8.5 which
1010 is the C compiler for sysV88 and the various derivatives.
1011 This header file bug is corrected in gcc-2.5.8 and later versions.
1012 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1014 #if defined(m88k) && defined(ghs)
1026 # ifdef I_SYS_TIME_KERNEL
1029 # include <sys/time.h>
1030 # ifdef I_SYS_TIME_KERNEL
1035 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1036 # include <sys/times.h>
1041 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1042 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1045 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1046 # include <sys/socket.h>
1047 # if defined(USE_SOCKS) && defined(I_SOCKS)
1048 # if !defined(INCLUDE_PROTOTYPES)
1049 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1050 # define PERL_SOCKS_NEED_PROTOTYPES
1053 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1054 # undef INCLUDE_PROTOTYPES
1055 # undef PERL_SOCKS_NEED_PROTOTYPES
1066 # include <net/errno.h>
1071 /* sockatmark() is so new (2001) that many places might have it hidden
1072 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1073 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1074 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1075 # if defined(__THROW) && defined(__GLIBC__)
1076 int sockatmark(int) __THROW;
1078 int sockatmark(int);
1082 #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. */
1083 EXTERN_C int fchdir(int);
1084 EXTERN_C int flock(int, int);
1085 EXTERN_C int fseeko(FILE *, off_t, int);
1086 EXTERN_C off_t ftello(FILE *);
1089 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1090 EXTERN_C char *crypt(const char *, const char *);
1093 #if defined(__cplusplus) && defined(__CYGWIN__)
1094 EXTERN_C char *crypt(const char *, const char *);
1098 # undef SETERRNO /* SOCKS might have defined this */
1102 # define SETERRNO(errcode,vmserrcode) \
1104 set_errno(errcode); \
1105 set_vaxc_errno(vmserrcode); \
1107 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1108 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1109 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1110 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1112 # define LIB_INVARG LIB$_INVARG
1113 # define RMS_DIR RMS$_DIR
1114 # define RMS_FAC RMS$_FAC
1115 # define RMS_FEX RMS$_FEX
1116 # define RMS_FNF RMS$_FNF
1117 # define RMS_IFI RMS$_IFI
1118 # define RMS_ISI RMS$_ISI
1119 # define RMS_PRV RMS$_PRV
1120 # define SS_ACCVIO SS$_ACCVIO
1121 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1122 # define SS_IVCHAN SS$_IVCHAN
1123 # define SS_NORMAL SS$_NORMAL
1124 # define SS_NOPRIV SS$_NOPRIV
1125 # define SS_BUFFEROVF SS$_BUFFEROVF
1127 # define LIB_INVARG 0
1135 # define SS_ACCVIO 0
1136 # define SS_DEVOFFLINE 0
1137 # define SS_IVCHAN 0
1138 # define SS_NORMAL 0
1139 # define SS_NOPRIV 0
1140 # define SS_BUFFEROVF 0
1144 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1145 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1146 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1147 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1151 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1152 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1153 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1154 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1158 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1162 # define dSAVEDERRNO int saved_errno
1163 # define dSAVE_ERRNO int saved_errno = errno
1164 # define SAVE_ERRNO (saved_errno = errno)
1165 # define RESTORE_ERRNO (errno = saved_errno)
1168 #define ERRSV GvSVn(PL_errgv)
1170 /* contains inlined gv_add_by_type */
1171 #define CLEAR_ERRSV() STMT_START { \
1172 SV ** const svp = &GvSV(PL_errgv); \
1174 *svp = newSVpvs(""); \
1175 } else if (SvREADONLY(*svp)) { \
1176 SvREFCNT_dec_NN(*svp); \
1177 *svp = newSVpvs(""); \
1179 SV *const errsv = *svp; \
1181 SvPOK_only(errsv); \
1182 if (SvMAGICAL(errsv)) { \
1190 # define DEFSV (0 + GvSVn(PL_defgv))
1191 # define DEFSV_set(sv) \
1192 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1193 # define SAVE_DEFSV \
1195 save_gp(PL_defgv, 0), \
1196 GvINTRO_off(PL_defgv), \
1197 SAVEGENERICSV(GvSV(PL_defgv)), \
1198 GvSV(PL_defgv) = NULL \
1201 # define DEFSV GvSVn(PL_defgv)
1202 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1203 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1207 extern int errno; /* ANSI allows errno to be an lvalue expr.
1208 * For example in multithreaded environments
1209 * something like this might happen:
1210 * extern int *_errno(void);
1211 * #define errno (*_errno()) */
1214 #define UNKNOWN_ERRNO_MSG "(unknown)"
1217 #define Strerror(e) strerror((e), vaxc$errno)
1219 #define Strerror(e) strerror(e)
1224 # include <sys/ioctl.h>
1228 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1229 # ifdef HAS_SOCKETPAIR
1230 # undef HAS_SOCKETPAIR
1237 #ifndef HAS_SOCKETPAIR
1239 # define socketpair Perl_my_socketpair
1244 # define htoni htons
1245 # define ntohi ntohs
1247 # define htoni htonl
1248 # define ntohi ntohl
1251 /* Configure already sets Direntry_t */
1252 #if defined(I_DIRENT)
1253 # include <dirent.h>
1254 #elif defined(I_SYS_NDIR)
1255 # include <sys/ndir.h>
1256 #elif defined(I_SYS_DIR)
1257 # include <sys/dir.h>
1261 * The following gobbledygook brought to you on behalf of __STDC__.
1262 * (I could just use #ifndef __STDC__, but this is more bulletproof
1263 * in the face of half-implementations.)
1266 #if defined(I_SYSMODE)
1267 #include <sys/mode.h>
1272 # define S_IFMT _S_IFMT
1274 # define S_IFMT 0170000
1279 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1283 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1288 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1290 # define S_ISBLK(m) (0)
1295 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1300 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1302 # define S_ISFIFO(m) (0)
1308 # define S_ISLNK(m) _S_ISLNK(m)
1309 # elif defined(_S_IFLNK)
1310 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1311 # elif defined(S_IFLNK)
1312 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1314 # define S_ISLNK(m) (0)
1320 # define S_ISSOCK(m) _S_ISSOCK(m)
1321 # elif defined(_S_IFSOCK)
1322 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1323 # elif defined(S_IFSOCK)
1324 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1326 # define S_ISSOCK(m) (0)
1332 # define S_IRUSR S_IREAD
1333 # define S_IWUSR S_IWRITE
1334 # define S_IXUSR S_IEXEC
1336 # define S_IRUSR 0400
1337 # define S_IWUSR 0200
1338 # define S_IXUSR 0100
1344 # define S_IRGRP (S_IRUSR>>3)
1345 # define S_IWGRP (S_IWUSR>>3)
1346 # define S_IXGRP (S_IXUSR>>3)
1348 # define S_IRGRP 0040
1349 # define S_IWGRP 0020
1350 # define S_IXGRP 0010
1356 # define S_IROTH (S_IRUSR>>6)
1357 # define S_IWOTH (S_IWUSR>>6)
1358 # define S_IXOTH (S_IXUSR>>6)
1360 # define S_IROTH 0040
1361 # define S_IWOTH 0020
1362 # define S_IXOTH 0010
1367 # define S_ISUID 04000
1371 # define S_ISGID 02000
1375 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1379 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1383 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1386 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1387 * which would get included through <sys/file.h >, but that is 3000
1388 * lines in the future. --jhi */
1390 #if !defined(S_IREAD) && !defined(__HAIKU__)
1391 # define S_IREAD S_IRUSR
1394 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1395 # define S_IWRITE S_IWUSR
1399 # define S_IEXEC S_IXUSR
1402 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1403 # define SLOPPYDIVIDE
1410 /* This used to be conditionally defined based on whether we had a sprintf()
1411 * that correctly returns the string length (as required by C89), but we no
1412 * longer need that. XS modules can (and do) use this name, so it must remain
1413 * a part of the API that's visible to modules. But we no longer document it
1414 * either (because using sprintf() rather than snprintf() is almost always
1416 #define my_sprintf sprintf
1419 * If we have v?snprintf() and the C99 variadic macros, we can just
1420 * use just the v?snprintf(). It is nice to try to trap the buffer
1421 * overflow, however, so if we are DEBUGGING, and we cannot use the
1422 * gcc statement expressions, then use the function wrappers which try
1423 * to trap the overflow. If we can use the gcc statement expressions,
1424 * we can try that even with the version that uses the C99 variadic
1428 /* Note that we do not check against snprintf()/vsnprintf() returning
1429 * negative values because that is non-standard behaviour and we use
1430 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1431 * that should be true only if the snprintf()/vsnprintf() are true
1432 * to the standard. */
1434 #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
1437 # define my_snprintf Perl_my_snprintf
1438 # define PERL_MY_SNPRINTF_GUARDED
1439 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1440 # ifdef PERL_USE_GCC_BRACE_GROUPS
1441 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1442 # define PERL_MY_SNPRINTF_GUARDED
1444 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1447 # define my_snprintf Perl_my_snprintf
1448 # define PERL_MY_SNPRINTF_GUARDED
1451 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1452 * dies if called under USE_QUADMATH. */
1453 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1454 # ifdef PERL_USE_GCC_BRACE_GROUPS
1455 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1456 # define PERL_MY_VSNPRINTF_GUARDED
1458 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1461 # define my_vsnprintf Perl_my_vsnprintf
1462 # define PERL_MY_VSNPRINTF_GUARDED
1465 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1466 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1467 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1468 * completely ignore it: otherwise you cannot know whether your output
1471 * int len = my_sprintf(buf, max, ...);
1472 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1474 * The trick is that in certain platforms [a] the my_sprintf() already
1475 * contains the sanity check, while in certain platforms [b] it needs
1476 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1477 * platforms the POST_GUARD actually does nothing since the check has
1478 * already been done. Watch out for the max being the same in both calls.
1480 * If you actually use the snprintf/vsnprintf return value already,
1481 * you assumedly are checking its validity somehow. But you can
1482 * insert the POST_GUARD() also in that case. */
1484 #ifndef PERL_MY_SNPRINTF_GUARDED
1485 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1487 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1490 #ifndef PERL_MY_VSNPRINTF_GUARDED
1491 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1493 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1497 # define my_strlcat strlcat
1499 # define my_strlcat Perl_my_strlcat
1502 #if defined(PERL_CORE) || defined(PERL_EXT)
1504 # define my_memrchr memrchr
1506 # define my_memrchr S_my_memrchr
1511 # define my_strlcpy strlcpy
1513 # define my_strlcpy Perl_my_strlcpy
1517 # define my_strnlen strnlen
1519 # define my_strnlen Perl_my_strnlen
1523 The IV type is supposed to be long enough to hold any integral
1525 --Andy Dougherty August 1996
1531 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1532 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1533 # define IV_MAX INT64_MAX
1534 # define IV_MIN INT64_MIN
1535 # define UV_MAX UINT64_MAX
1537 # define UINT64_MIN 0
1539 # define UV_MIN UINT64_MIN
1541 # define IV_MAX PERL_QUAD_MAX
1542 # define IV_MIN PERL_QUAD_MIN
1543 # define UV_MAX PERL_UQUAD_MAX
1544 # define UV_MIN PERL_UQUAD_MIN
1549 # if defined(INT32_MAX) && IVSIZE == 4
1550 # define IV_MAX INT32_MAX
1551 # define IV_MIN INT32_MIN
1552 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1553 # define UV_MAX UINT32_MAX
1555 # define UV_MAX 4294967295U
1558 # define UINT32_MIN 0
1560 # define UV_MIN UINT32_MIN
1562 # define IV_MAX PERL_LONG_MAX
1563 # define IV_MIN PERL_LONG_MIN
1564 # define UV_MAX PERL_ULONG_MAX
1565 # define UV_MIN PERL_ULONG_MIN
1576 #if !defined(PERL_CORE) || defined(USING_MSVC6)
1577 /* We think that removing this decade-old undef this will cause too much
1578 breakage on CPAN for too little gain. (See RT #119753)
1579 However, we do need HAS_QUAD in the core for use by the drand48 code,
1580 but not for Win32 VC6 because it has poor __int64 support. */
1586 #define Size_t_MAX (~(Size_t)0)
1587 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1589 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1590 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1592 #ifndef NO_PERL_PRESERVE_IVUV
1593 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1597 * The macros INT2PTR and NUM2PTR are (despite their names)
1598 * bi-directional: they will convert int/float to or from pointers.
1599 * However the conversion to int/float are named explicitly:
1600 * PTR2IV, PTR2UV, PTR2NV.
1602 * For int conversions we do not need two casts if pointers are
1603 * the same size as IV and UV. Otherwise we need an explicit
1604 * cast (PTRV) to avoid compiler warnings.
1606 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1608 # define INT2PTR(any,d) (any)(d)
1609 #elif PTRSIZE == LONGSIZE
1610 # define PTRV unsigned long
1611 # define PTR2ul(p) (unsigned long)(p)
1613 # define PTRV unsigned
1617 # define INT2PTR(any,d) (any)(PTRV)(d)
1621 # define PTR2ul(p) INT2PTR(unsigned long,p)
1624 #define NUM2PTR(any,d) (any)(PTRV)(d)
1625 #define PTR2IV(p) INT2PTR(IV,p)
1626 #define PTR2UV(p) INT2PTR(UV,p)
1627 #define PTR2NV(p) NUM2PTR(NV,p)
1628 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1630 /* According to strict ANSI C89 one cannot freely cast between
1631 * data pointers and function (code) pointers. There are at least
1632 * two ways around this. One (used below) is to do two casts,
1633 * first the other pointer to an (unsigned) integer, and then
1634 * the integer to the other pointer. The other way would be
1635 * to use unions to "overlay" the pointers. For an example of
1636 * the latter technique, see union dirpu in struct xpvio in sv.h.
1637 * The only feasible use is probably temporarily storing
1638 * function pointers in a data pointer (such as a void pointer). */
1640 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1641 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1643 #ifdef USE_LONG_DOUBLE
1644 # if LONG_DOUBLESIZE == DOUBLESIZE
1645 # define LONG_DOUBLE_EQUALS_DOUBLE
1646 # undef USE_LONG_DOUBLE /* Ouch! */
1650 /* The following is all to get LDBL_DIG, in order to pick a nice
1651 default value for printing floating point numbers in Gconvert.
1654 #ifndef HAS_LDBL_DIG
1655 # if LONG_DOUBLESIZE == 10
1656 # define LDBL_DIG 18 /* assume IEEE */
1657 # elif LONG_DOUBLESIZE == 12
1658 # define LDBL_DIG 18 /* gcc? */
1659 # elif LONG_DOUBLESIZE == 16
1660 # define LDBL_DIG 33 /* assume IEEE */
1661 # elif LONG_DOUBLESIZE == DOUBLESIZE
1662 # define LDBL_DIG DBL_DIG /* bummer */
1669 # include <ieeefp.h>
1673 /* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1674 * and for example NaN < IV_MIN. */
1675 # define NAN_COMPARE_BROKEN
1677 #if defined(__DECC) && defined(__osf__)
1678 /* Also Tru64 cc has broken NaN comparisons. */
1679 # define NAN_COMPARE_BROKEN
1682 # define NAN_COMPARE_BROKEN
1685 #ifdef USE_LONG_DOUBLE
1687 # include <sunmath.h>
1689 # if defined(LDBL_DIG)
1690 # define NV_DIG LDBL_DIG
1691 # ifdef LDBL_MANT_DIG
1692 # define NV_MANT_DIG LDBL_MANT_DIG
1695 # define NV_MIN LDBL_MIN
1698 # define NV_MAX LDBL_MAX
1700 # ifdef LDBL_MIN_EXP
1701 # define NV_MIN_EXP LDBL_MIN_EXP
1703 # ifdef LDBL_MAX_EXP
1704 # define NV_MAX_EXP LDBL_MAX_EXP
1706 # ifdef LDBL_MIN_10_EXP
1707 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
1709 # ifdef LDBL_MAX_10_EXP
1710 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
1712 # ifdef LDBL_EPSILON
1713 # define NV_EPSILON LDBL_EPSILON
1716 # define NV_MAX LDBL_MAX
1717 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
1718 # elif defined(HUGE_VALL)
1719 # define NV_MAX HUGE_VALL
1722 # if defined(HAS_SQRTL)
1723 # define Perl_acos acosl
1724 # define Perl_asin asinl
1725 # define Perl_atan atanl
1726 # define Perl_atan2 atan2l
1727 # define Perl_ceil ceill
1728 # define Perl_cos cosl
1729 # define Perl_cosh coshl
1730 # define Perl_exp expl
1731 /* no Perl_fabs, but there's PERL_ABS */
1732 # define Perl_floor floorl
1733 # define Perl_fmod fmodl
1734 # define Perl_log logl
1735 # define Perl_log10 log10l
1736 # define Perl_pow powl
1737 # define Perl_sin sinl
1738 # define Perl_sinh sinhl
1739 # define Perl_sqrt sqrtl
1740 # define Perl_tan tanl
1741 # define Perl_tanh tanhl
1743 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1746 # define Perl_modf(x,y) modfl(x,y)
1747 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1748 prototype in <math.h> */
1749 # ifndef HAS_MODFL_PROTO
1750 EXTERN_C long double modfl(long double, long double *);
1752 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
1753 extern long double Perl_my_modfl(long double x, long double *ip);
1754 # define Perl_modf(x,y) Perl_my_modfl(x,y)
1759 # define Perl_frexp(x,y) frexpl(x,y)
1760 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1761 extern long double Perl_my_frexpl(long double x, int *e);
1762 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1767 # define Perl_ldexp(x, y) ldexpl(x,y)
1768 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
1769 # define Perl_ldexp(x,y) scalbnl(x,y)
1773 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
1774 # define Perl_isnan(x) isnanl(x)
1775 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1776 # define Perl_isnan(x) isnan(x)
1780 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
1781 # define Perl_isinf(x) isinfl(x)
1782 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1783 # define Perl_isinf(x) isinf(x)
1784 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
1785 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
1788 # ifndef Perl_isfinite
1789 # define Perl_isfinite(x) Perl_isfinitel(x)
1791 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1792 # include <quadmath.h>
1793 # define NV_DIG FLT128_DIG
1794 # define NV_MANT_DIG FLT128_MANT_DIG
1795 # define NV_MIN FLT128_MIN
1796 # define NV_MAX FLT128_MAX
1797 # define NV_MIN_EXP FLT128_MIN_EXP
1798 # define NV_MAX_EXP FLT128_MAX_EXP
1799 # define NV_EPSILON FLT128_EPSILON
1800 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
1801 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
1802 # define Perl_acos acosq
1803 # define Perl_asin asinq
1804 # define Perl_atan atanq
1805 # define Perl_atan2 atan2q
1806 # define Perl_ceil ceilq
1807 # define Perl_cos cosq
1808 # define Perl_cosh coshq
1809 # define Perl_exp expq
1810 /* no Perl_fabs, but there's PERL_ABS */
1811 # define Perl_floor floorq
1812 # define Perl_fmod fmodq
1813 # define Perl_log logq
1814 # define Perl_log10 log10q
1815 # define Perl_pow powq
1816 # define Perl_sin sinq
1817 # define Perl_sinh sinhq
1818 # define Perl_sqrt sqrtq
1819 # define Perl_tan tanq
1820 # define Perl_tanh tanhq
1821 # define Perl_modf(x,y) modfq(x,y)
1822 # define Perl_frexp(x,y) frexpq(x,y)
1823 # define Perl_ldexp(x, y) ldexpq(x,y)
1824 # define Perl_isinf(x) isinfq(x)
1825 # define Perl_isnan(x) isnanq(x)
1826 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
1827 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
1828 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
1829 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
1830 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
1831 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
1832 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
1834 # define NV_DIG DBL_DIG
1835 # define NV_MANT_DIG DBL_MANT_DIG
1836 # define NV_MIN DBL_MIN
1837 # define NV_MAX DBL_MAX
1838 # define NV_MIN_EXP DBL_MIN_EXP
1839 # define NV_MAX_EXP DBL_MAX_EXP
1840 # define NV_MIN_10_EXP DBL_MIN_10_EXP
1841 # define NV_MAX_10_EXP DBL_MAX_10_EXP
1842 # define NV_EPSILON DBL_EPSILON
1843 # define NV_MAX DBL_MAX
1844 # define NV_MIN DBL_MIN
1846 /* These math interfaces are C89. */
1847 # define Perl_acos acos
1848 # define Perl_asin asin
1849 # define Perl_atan atan
1850 # define Perl_atan2 atan2
1851 # define Perl_ceil ceil
1852 # define Perl_cos cos
1853 # define Perl_cosh cosh
1854 # define Perl_exp exp
1855 /* no Perl_fabs, but there's PERL_ABS */
1856 # define Perl_floor floor
1857 # define Perl_fmod fmod
1858 # define Perl_log log
1859 # define Perl_log10 log10
1860 # define Perl_pow pow
1861 # define Perl_sin sin
1862 # define Perl_sinh sinh
1863 # define Perl_sqrt sqrt
1864 # define Perl_tan tan
1865 # define Perl_tanh tanh
1867 # define Perl_modf(x,y) modf(x,y)
1868 # define Perl_frexp(x,y) frexp(x,y)
1869 # define Perl_ldexp(x,y) ldexp(x,y)
1873 # define Perl_isnan(x) isnan(x)
1877 # if defined(HAS_ISINF)
1878 # define Perl_isinf(x) isinf(x)
1879 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
1880 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1883 # ifndef Perl_isfinite
1884 # ifdef HAS_ISFINITE
1885 # define Perl_isfinite(x) isfinite(x)
1886 # elif defined(HAS_FINITE)
1887 # define Perl_isfinite(x) finite(x)
1892 /* fpclassify(): C99. It is supposed to be a macro that switches on
1893 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
1894 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
1896 # if defined(FP_INFINITE) && defined(FP_NAN)
1897 # define Perl_fp_class(x) fpclassify(x)
1898 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1899 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1900 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1901 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1902 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1903 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
1904 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
1905 * actually not the C99 fpclassify, with its own set of return defines. */
1906 # define Perl_fp_class(x) fpclassify(x)
1907 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
1908 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
1909 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1910 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1911 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1912 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
1913 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
1914 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
1915 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
1916 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
1918 # undef Perl_fp_class /* Unknown set of defines */
1922 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
1923 * are identical to the C99 fpclassify(). */
1924 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
1927 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
1929 /* oh, and the isnormal macro has a typo in it! */
1931 # define isnormal(x) Perl_fp_class_norm(x)
1933 # if defined(FP_INFINITE) && defined(FP_NAN)
1934 # define Perl_fp_class(x) fp_classify(x)
1935 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1936 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1937 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1938 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1939 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1941 # undef Perl_fp_class /* Unknown set of defines */
1945 /* Feel free to check with me for the SGI manpages, SGI testing,
1946 * etcetera, if you want to try getting this to work with IRIX.
1948 * - Allen <allens@cpan.org> */
1950 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
1951 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
1952 /* Solaris and IRIX have fpclass/fpclassl, but they are using
1953 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
1954 * Define some symbols also as cpp symbols so we can detect them. */
1955 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
1956 # define FP_PINF FP_PINF
1957 # define FP_QNAN FP_QNAN
1961 # include <ieeefp.h>
1966 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
1967 # define Perl_fp_class(x) fpclassl(x)
1969 # define Perl_fp_class(x) fpclass(x)
1971 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
1972 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
1973 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
1974 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
1975 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
1976 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
1977 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
1978 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
1979 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
1980 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
1981 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
1982 # elif defined(FP_PINF) && defined(FP_QNAN)
1983 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1984 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1985 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
1986 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
1987 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
1988 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
1989 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
1990 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
1991 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
1992 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
1994 # undef Perl_fp_class /* Unknown set of defines */
1998 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
1999 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2001 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2002 # include <fp_class.h>
2004 # if defined(FP_POS_INF) && defined(FP_QNAN)
2005 # ifdef __sgi /* XXX Configure test instead */
2006 # ifdef USE_LONG_DOUBLE
2007 # define Perl_fp_class(x) fp_class_l(x)
2009 # define Perl_fp_class(x) fp_class_d(x)
2012 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2013 # define Perl_fp_class(x) fp_classl(x)
2015 # define Perl_fp_class(x) fp_class(x)
2018 # if defined(FP_POS_INF) && defined(FP_QNAN)
2019 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2020 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2021 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2022 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2023 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2024 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2025 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2026 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2027 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2028 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2030 # undef Perl_fp_class /* Unknown set of defines */
2035 /* class(), _class(): Legacy: AIX. */
2036 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2038 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2040 # define Perl_fp_class(x) class(x)
2042 # define Perl_fp_class(x) _class(x)
2044 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2045 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2046 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2047 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2048 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2049 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2050 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2051 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2052 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2053 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2054 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2056 # undef Perl_fp_class /* Unknown set of defines */
2061 /* Win32: _fpclass(), _isnan(), _finite(). */
2064 # define Perl_isnan(x) _isnan(x)
2066 # ifndef Perl_isfinite
2067 # define Perl_isfinite(x) _finite(x)
2069 # ifndef Perl_fp_class_snan
2070 /* No simple way to #define Perl_fp_class because _fpclass()
2071 * returns a set of bits. */
2072 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2073 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2074 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2075 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2076 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2077 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2078 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2079 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2080 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2081 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2082 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2083 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2084 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2085 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2086 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2090 #if !defined(Perl_fp_class_inf) && \
2091 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2092 # define Perl_fp_class_inf(x) \
2093 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2096 #if !defined(Perl_fp_class_nan) && \
2097 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2098 # define Perl_fp_class_nan(x) \
2099 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2102 #if !defined(Perl_fp_class_zero) && \
2103 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2104 # define Perl_fp_class_zero(x) \
2105 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2108 #if !defined(Perl_fp_class_norm) && \
2109 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2110 # define Perl_fp_class_norm(x) \
2111 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2114 #if !defined(Perl_fp_class_denorm) && \
2115 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2116 # define Perl_fp_class_denorm(x) \
2117 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2121 int isnan(double d);
2125 # ifdef Perl_fp_class_nan
2126 # define Perl_isnan(x) Perl_fp_class_nan(x)
2127 # elif defined(HAS_UNORDERED)
2128 # define Perl_isnan(x) unordered((x), 0.0)
2130 # define Perl_isnan(x) ((x)!=(x))
2135 # ifdef Perl_fp_class_inf
2136 # define Perl_isinf(x) Perl_fp_class_inf(x)
2140 #ifndef Perl_isfinite
2141 # if defined(HAS_ISFINITE) && !defined(isfinite)
2142 # define Perl_isfinite(x) isfinite((double)(x))
2143 # elif defined(HAS_FINITE)
2144 # define Perl_isfinite(x) finite((double)(x))
2145 # elif defined(Perl_fp_class_finite)
2146 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2148 /* For the infinities the multiplication returns nan,
2149 * for the nan the multiplication also returns nan,
2150 * for everything else (that is, finite) zero should be returned. */
2151 # define Perl_isfinite(x) (((x) * 0) == 0)
2156 # if defined(Perl_isfinite) && defined(Perl_isnan)
2157 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2161 /* We need Perl_isfinitel (ends with ell) (if available) even when
2162 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2164 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2165 /* If isfinite() is a macro and looks like we have C99,
2166 * we assume it's the type-aware C99 isfinite(). */
2167 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2168 # define Perl_isfinitel(x) isfinite(x)
2169 # elif defined(HAS_ISFINITEL)
2170 # define Perl_isfinitel(x) isfinitel(x)
2171 # elif defined(HAS_FINITEL)
2172 # define Perl_isfinitel(x) finitel(x)
2173 # elif defined(HAS_INFL) && defined(HAS_NANL)
2174 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2176 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2180 /* The default is to use Perl's own atof() implementation (in numeric.c).
2181 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2182 * it is however best to use the native implementation of atof.
2183 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2184 * Some good tests to try out with either setting are t/base/num.t,
2185 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2186 * you may need to be using a different function than atof! */
2188 #ifndef USE_PERL_ATOF
2190 # define USE_PERL_ATOF
2193 # if USE_PERL_ATOF == 0
2194 # undef USE_PERL_ATOF
2198 #ifdef USE_PERL_ATOF
2199 # define Perl_atof(s) Perl_my_atof(s)
2200 # define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2202 # define Perl_atof(s) (NV)atof(s)
2203 # define Perl_atof2(s, n) ((n) = atof(s))
2207 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2208 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2209 * depending on local options. Until Configure detects this (or at least
2210 * detects whether the "signed" keyword is available) the CHAR ranges
2211 * will not be included. UCHAR functions normally.
2215 #define PERL_UCHAR_MIN ((unsigned char)0)
2216 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2218 #define PERL_USHORT_MIN ((unsigned short)0)
2219 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2221 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2222 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2224 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2225 #define PERL_UINT_MIN ((unsigned int)0)
2227 #define PERL_INT_MAX ((int)INT_MAX)
2228 #define PERL_INT_MIN ((int)INT_MIN)
2230 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2231 #define PERL_ULONG_MIN ((unsigned long)0L)
2233 #define PERL_LONG_MAX ((long)LONG_MAX)
2234 #define PERL_LONG_MIN ((long)LONG_MIN)
2237 # define PERL_UQUAD_MAX (~(UV)0)
2238 # define PERL_UQUAD_MIN ((UV)0)
2239 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2240 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2243 typedef MEM_SIZE STRLEN;
2245 typedef struct op OP;
2246 typedef struct cop COP;
2247 typedef struct unop UNOP;
2248 typedef struct unop_aux UNOP_AUX;
2249 typedef struct binop BINOP;
2250 typedef struct listop LISTOP;
2251 typedef struct logop LOGOP;
2252 typedef struct pmop PMOP;
2253 typedef struct svop SVOP;
2254 typedef struct padop PADOP;
2255 typedef struct pvop PVOP;
2256 typedef struct loop LOOP;
2257 typedef struct methop METHOP;
2260 typedef struct opslab OPSLAB;
2261 typedef struct opslot OPSLOT;
2264 typedef struct block_hooks BHK;
2265 typedef struct custom_op XOP;
2267 typedef struct interpreter PerlInterpreter;
2269 /* SGI's <sys/sema.h> has struct sv */
2271 # define STRUCT_SV perl_sv
2273 # define STRUCT_SV sv
2275 typedef struct STRUCT_SV SV;
2276 typedef struct av AV;
2277 typedef struct hv HV;
2278 typedef struct cv CV;
2279 typedef struct p5rx REGEXP;
2280 typedef struct gp GP;
2281 typedef struct gv GV;
2282 typedef struct io IO;
2283 typedef struct context PERL_CONTEXT;
2284 typedef struct block BLOCK;
2286 typedef struct magic MAGIC;
2287 typedef struct xpv XPV;
2288 typedef struct xpviv XPVIV;
2289 typedef struct xpvuv XPVUV;
2290 typedef struct xpvnv XPVNV;
2291 typedef struct xpvmg XPVMG;
2292 typedef struct xpvlv XPVLV;
2293 typedef struct xpvinvlist XINVLIST;
2294 typedef struct xpvav XPVAV;
2295 typedef struct xpvhv XPVHV;
2296 typedef struct xpvgv XPVGV;
2297 typedef struct xpvcv XPVCV;
2298 typedef struct xpvbm XPVBM;
2299 typedef struct xpvfm XPVFM;
2300 typedef struct xpvio XPVIO;
2301 typedef struct mgvtbl MGVTBL;
2302 typedef union any ANY;
2303 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2304 typedef struct ptr_tbl PTR_TBL_t;
2305 typedef struct clone_params CLONE_PARAMS;
2307 /* a pad is currently just an AV; but that might change,
2308 * so hide the type. */
2309 typedef struct padlist PADLIST;
2311 typedef struct padnamelist PADNAMELIST;
2312 typedef struct padname PADNAME;
2314 /* enable PERL_OP_PARENT by default */
2315 #if !defined(PERL_OP_PARENT) && !defined(PERL_NO_OP_PARENT)
2316 # define PERL_OP_PARENT
2319 /* enable PERL_COPY_ON_WRITE by default */
2320 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2321 # define PERL_COPY_ON_WRITE
2324 #ifdef PERL_COPY_ON_WRITE
2325 # define PERL_ANY_COW
2327 # define PERL_SAWAMPERSAND
2330 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2331 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2335 #include "charclass_invlists.h"
2337 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2338 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2339 # define USE_64_BIT_RAWIO /* implicit */
2343 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2344 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2345 * however, because operating systems like to do that themself. */
2348 # define FSEEKSIZE LSEEKSIZE
2350 # define FSEEKSIZE LONGSIZE
2354 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2355 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2356 # define USE_64_BIT_STDIO /* implicit */
2360 #ifdef USE_64_BIT_RAWIO
2363 # define Off_t off64_t
2365 # define LSEEKSIZE 8
2367 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2368 * will trigger defines like the ones below. Some 64-bit environments,
2369 * however, do not. Therefore we have to explicitly mix and match. */
2370 # if defined(USE_OPEN64)
2371 # define open open64
2373 # if defined(USE_LSEEK64)
2374 # define lseek lseek64
2376 # if defined(USE_LLSEEK)
2377 # define lseek llseek
2380 # if defined(USE_STAT64)
2381 # define stat stat64
2383 # if defined(USE_FSTAT64)
2384 # define fstat fstat64
2386 # if defined(USE_LSTAT64)
2387 # define lstat lstat64
2389 # if defined(USE_FLOCK64)
2390 # define flock flock64
2392 # if defined(USE_LOCKF64)
2393 # define lockf lockf64
2395 # if defined(USE_FCNTL64)
2396 # define fcntl fcntl64
2398 # if defined(USE_TRUNCATE64)
2399 # define truncate truncate64
2401 # if defined(USE_FTRUNCATE64)
2402 # define ftruncate ftruncate64
2406 #ifdef USE_64_BIT_STDIO
2407 # ifdef HAS_FPOS64_T
2409 # define Fpos_t fpos64_t
2411 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2412 * will trigger defines like the ones below. Some 64-bit environments,
2413 * however, do not. */
2414 # if defined(USE_FOPEN64)
2415 # define fopen fopen64
2417 # if defined(USE_FSEEK64)
2418 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2420 # if defined(USE_FTELL64)
2421 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2423 # if defined(USE_FSETPOS64)
2424 # define fsetpos fsetpos64
2426 # if defined(USE_FGETPOS64)
2427 # define fgetpos fgetpos64
2429 # if defined(USE_TMPFILE64)
2430 # define tmpfile tmpfile64
2432 # if defined(USE_FREOPEN64)
2433 # define freopen freopen64
2438 # include "iperlsys.h"
2443 # include "os2ish.h"
2445 # include "dosish.h"
2448 # include "vmsish.h"
2449 #elif defined(PLAN9)
2450 # include "./plan9/plan9ish.h"
2451 #elif defined(__VOS__)
2453 # include "./vos/vosish.h"
2455 # include "vos/vosish.h"
2457 #elif defined(__SYMBIAN32__)
2458 # include "symbian/symbianish.h"
2459 #elif defined(__HAIKU__)
2460 # include "haiku/haikuish.h"
2462 # include "unixish.h"
2466 # include "amigaos.h"
2467 # undef FD_CLOEXEC /* a lie in AmigaOS */
2470 /* NSIG logic from Configure --> */
2473 # define NSIG (_NSIG)
2474 # elif defined(SIGMAX)
2475 # define NSIG (SIGMAX+1)
2476 # elif defined(SIG_MAX)
2477 # define NSIG (SIG_MAX+1)
2478 # elif defined(_SIG_MAX)
2479 # define NSIG (_SIG_MAX+1)
2480 # elif defined(MAXSIG)
2481 # define NSIG (MAXSIG+1)
2482 # elif defined(MAX_SIG)
2483 # define NSIG (MAX_SIG+1)
2484 # elif defined(SIGARRAYSIZE)
2485 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2486 # elif defined(_sys_nsig)
2487 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2489 /* Default to some arbitrary number that's big enough to get most
2490 * of the common signals. */
2494 /* <-- NSIG logic from Configure */
2496 #ifndef NO_ENVIRON_ARRAY
2497 # define USE_ENVIRON_ARRAY
2501 * initialise to avoid floating-point exceptions from overflow, etc
2503 #ifndef PERL_FPU_INIT
2504 # ifdef HAS_FPSETMASK
2505 # if HAS_FLOATINGPOINT_H
2506 # include <floatingpoint.h>
2508 /* Some operating systems have this as a macro, which in turn expands to a comma
2509 expression, and the last sub-expression is something that gets calculated,
2510 and then they have the gall to warn that a value computed is not used. Hence
2512 # define PERL_FPU_INIT (void)fpsetmask(0)
2513 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2514 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2515 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2516 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2518 # define PERL_FPU_INIT
2521 #ifndef PERL_FPU_PRE_EXEC
2522 # define PERL_FPU_PRE_EXEC {
2523 # define PERL_FPU_POST_EXEC }
2526 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2527 * We need to reenable the "invalid" trap because otherwise generation
2528 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2529 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2531 # include <machine/fpu.h>
2532 # define PERL_SYS_FPU_INIT \
2534 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2535 signal(SIGFPE, SIG_IGN); \
2538 /* In IRIX the default for Flush to Zero bit is true,
2539 * which means that results going below the minimum of normal
2540 * floating points go to zero, instead of going denormal/subnormal.
2541 * This is unlike almost any other system running Perl, so let's clear it.
2542 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2543 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2545 * XXX The flush-to-zero behaviour should be a Configure scan.
2546 * To change the behaviour usually requires some system-specific
2547 * incantation, though, like the below. */
2549 # include <sys/fpu.h>
2550 # define PERL_SYS_FPU_INIT \
2552 union fpc_csr csr; \
2553 csr.fc_word = get_fpc_csr(); \
2554 csr.fc_struct.flush = 0; \
2555 set_fpc_csr(csr.fc_word); \
2559 #ifndef PERL_SYS_FPU_INIT
2560 # define PERL_SYS_FPU_INIT NOOP
2563 #ifndef PERL_SYS_INIT3_BODY
2564 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2568 =head1 Miscellaneous Functions
2570 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
2571 Provides system-specific tune up of the C runtime environment necessary to
2572 run Perl interpreters. This should be called only once, before creating
2573 any Perl interpreters.
2575 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
2576 Provides system-specific tune up of the C runtime environment necessary to
2577 run Perl interpreters. This should be called only once, before creating
2578 any Perl interpreters.
2580 =for apidoc Am|void|PERL_SYS_TERM|
2581 Provides system-specific clean up of the C runtime environment after
2582 running Perl interpreters. This should be called only once, after
2583 freeing any remaining Perl interpreters.
2588 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2589 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
2590 #define PERL_SYS_TERM() Perl_sys_term()
2592 #ifndef PERL_WRITE_MSG_TO_CONSOLE
2593 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2598 # ifdef _POSIX_PATH_MAX
2599 # if PATH_MAX > _POSIX_PATH_MAX
2600 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2601 * included the null byte or not. Later amendments of POSIX,
2602 * XPG4, the Austin Group, and the Single UNIX Specification
2603 * all explicitly include the null byte in the PATH_MAX.
2604 * Ditto for _POSIX_PATH_MAX. */
2605 # define MAXPATHLEN PATH_MAX
2607 # define MAXPATHLEN _POSIX_PATH_MAX
2610 # define MAXPATHLEN (PATH_MAX+1)
2613 # define MAXPATHLEN 1024 /* Err on the large side. */
2617 /* In case Configure was not used (we are using a "canned config"
2618 * such as Win32, or a cross-compilation setup, for example) try going
2619 * by the gcc major and minor versions. One useful URL is
2620 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2621 * but contrary to this information warn_unused_result seems
2622 * not to be in gcc 3.3.5, at least. --jhi
2623 * Also, when building extensions with an installed perl, this allows
2624 * the user to upgrade gcc and get the right attributes, rather than
2625 * relying on the list generated at Configure time. --AD
2626 * Set these up now otherwise we get confused when some of the <*thread.h>
2627 * includes below indirectly pull in <perlio.h> (which needs to know if we
2628 * have HASATTRIBUTE_FORMAT).
2632 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
2633 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2634 # define HASATTRIBUTE_DEPRECATED
2636 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2637 # define HASATTRIBUTE_FORMAT
2638 # if defined __MINGW32__
2639 # define PRINTF_FORMAT_NULL_OK
2642 # if __GNUC__ >= 3 /* 3.0 -> */
2643 # define HASATTRIBUTE_MALLOC
2645 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2646 # define HASATTRIBUTE_NONNULL
2648 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2649 # define HASATTRIBUTE_NORETURN
2651 # if __GNUC__ >= 3 /* gcc 3.0 -> */
2652 # define HASATTRIBUTE_PURE
2654 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2655 # define HASATTRIBUTE_UNUSED
2657 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2658 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2660 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2661 # define HASATTRIBUTE_WARN_UNUSED_RESULT
2664 #endif /* #ifndef PERL_MICRO */
2666 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
2667 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
2668 * this results in many functions being undeclared which bothers C++
2669 * May make sense to have threads after "*ish.h" anyway
2672 /* clang Thread Safety Analysis/Annotations/Attributes
2673 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2675 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
2676 * Apple XCode hijacks __clang_major__ and __clang_minor__
2677 * (6.1 means really clang 3.6), so needs extra hijinks
2678 * (could probably also test the contents of __apple_build_version__).
2680 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
2681 defined(__clang__) && \
2682 !defined(PERL_GLOBAL_STRUCT) && \
2683 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
2685 ((!defined(__apple_build_version__) && \
2686 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
2687 (__clang_major__ >= 4))) || \
2688 (defined(__apple_build_version__) && \
2689 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
2690 (__clang_major__ >= 7))))
2691 # define PERL_TSA__(x) __attribute__((x))
2692 # define PERL_TSA_ACTIVE
2694 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
2695 # undef PERL_TSA_ACTIVE
2698 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
2699 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
2701 #define PERL_TSA_CAPABILITY(x) \
2702 PERL_TSA__(capability(x))
2704 /* In the below examples the mutex must be lexically visible, usually
2705 * either as global variables, or as function arguments. */
2707 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
2709 * Foo foo PERL_TSA_GUARDED_BY(mutex);
2711 #define PERL_TSA_GUARDED_BY(x) \
2712 PERL_TSA__(guarded_by(x))
2714 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
2715 * The data _behind_ the pointer is guarded.
2717 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
2719 #define PERL_TSA_PT_GUARDED_BY(x) \
2720 PERL_TSA__(pt_guarded_by(x))
2722 /* PERL_TSA_REQUIRES() is used to annotate functions.
2723 * The caller MUST hold the resource when calling the function.
2725 * void Foo() PERL_TSA_REQUIRES(mutex);
2727 #define PERL_TSA_REQUIRES(x) \
2728 PERL_TSA__(requires_capability(x))
2730 /* PERL_TSA_EXCLUDES() is used to annotate functions.
2731 * The caller MUST NOT hold resource when calling the function.
2733 * EXCLUDES should be used when the function first acquires
2734 * the resource and then releases it. Use to avoid deadlock.
2736 * void Foo() PERL_TSA_EXCLUDES(mutex);
2738 #define PERL_TSA_EXCLUDES(x) \
2739 PERL_TSA__(locks_excluded(x))
2741 /* PERL_TSA_ACQUIRE() is used to annotate functions.
2742 * The caller MUST NOT hold the resource when calling the function,
2743 * and the function will acquire the resource.
2745 * void Foo() PERL_TSA_ACQUIRE(mutex);
2747 #define PERL_TSA_ACQUIRE(x) \
2748 PERL_TSA__(acquire_capability(x))
2750 /* PERL_TSA_RELEASE() is used to annotate functions.
2751 * The caller MUST hold the resource when calling the function,
2752 * and the function will release the resource.
2754 * void Foo() PERL_TSA_RELEASE(mutex);
2756 #define PERL_TSA_RELEASE(x) \
2757 PERL_TSA__(release_capability(x))
2759 /* PERL_TSA_NO_TSA is used to annotate functions.
2760 * Used when being intentionally unsafe, or when the code is too
2761 * complicated for the analysis. Use sparingly.
2763 * void Foo() PERL_TSA_NO_TSA;
2765 #define PERL_TSA_NO_TSA \
2766 PERL_TSA__(no_thread_safety_analysis)
2768 /* There are more annotations/attributes available, see the clang
2769 * documentation for details. */
2771 #if defined(USE_ITHREADS)
2773 # include <nw5thread.h>
2774 # elif defined(WIN32)
2775 # include <win32thread.h>
2777 # include "os2thread.h"
2778 # elif defined(I_MACH_CTHREADS)
2779 # include <mach/cthreads.h>
2780 typedef cthread_t perl_os_thread;
2781 typedef mutex_t perl_mutex;
2782 typedef condition_t perl_cond;
2783 typedef void * perl_key;
2784 # elif defined(I_PTHREAD) /* Posix threads */
2785 # include <pthread.h>
2786 typedef pthread_t perl_os_thread;
2787 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
2788 typedef pthread_cond_t perl_cond;
2789 typedef pthread_key_t perl_key;
2791 #endif /* USE_ITHREADS */
2793 #ifdef PERL_TSA_ACTIVE
2794 /* Since most pthread mutex interfaces have not been annotated, we
2795 * need to have these wrappers. The NO_TSA annotation is quite ugly
2796 * but it cannot be avoided in plain C, unlike in C++, where one could
2797 * e.g. use ACQUIRE() with no arg on a mutex lock method.
2799 * The bodies of these wrappers are in util.c
2801 * TODO: however, some platforms are starting to get these clang
2802 * thread safety annotations for pthreads, for example FreeBSD.
2803 * Do we need a way to a bypass these wrappers? */
2804 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
2805 PERL_TSA_ACQUIRE(*mutex)
2807 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
2808 PERL_TSA_RELEASE(*mutex)
2817 # include "netware.h"
2820 #define STATUS_UNIX PL_statusvalue
2822 # define STATUS_NATIVE PL_statusvalue_vms
2824 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
2825 * its contents can not be trusted. Unfortunately, Perl seems to check
2826 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2829 # include <stsdef.h>
2831 /* Presume this because if VMS changes it, it will require a new
2832 * set of APIs for waiting on children for binary compatibility.
2834 # define child_offset_bits (8)
2835 # ifndef C_FAC_POSIX
2836 # define C_FAC_POSIX 0x35A000
2839 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2840 * platform from the existing UNIX or Native status values.
2843 # define STATUS_EXIT \
2844 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2845 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2848 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2849 * exit code and shifts the UNIX value over the correct number of bits to
2850 * be a child status. Usually the number of bits is 8, but that could be
2851 * platform dependent. The NATIVE status code is presumed to have either
2852 * from a child process.
2855 /* This is complicated. The child processes return a true native VMS
2856 status which must be saved. But there is an assumption in Perl that
2857 the UNIX child status has some relationship to errno values, so
2858 Perl tries to translate it to text in some of the tests.
2859 In order to get the string translation correct, for the error, errno
2860 must be EVMSERR, but that generates a different text message
2861 than what the test programs are expecting. So an errno value must
2862 be derived from the native status value when an error occurs.
2863 That will hide the true native status message. With this version of
2864 perl, the true native child status can always be retrieved so that
2865 is not a problem. But in this case, Pl_statusvalue and errno may
2866 have different values in them.
2869 # define STATUS_NATIVE_CHILD_SET(n) \
2871 I32 evalue = (I32)n; \
2872 if (evalue == EVMSERR) { \
2873 PL_statusvalue_vms = vaxc$errno; \
2874 PL_statusvalue = evalue; \
2876 PL_statusvalue_vms = evalue; \
2877 if (evalue == -1) { \
2878 PL_statusvalue = -1; \
2879 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2881 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2882 set_vaxc_errno(evalue); \
2883 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
2884 set_errno(EVMSERR); \
2885 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
2886 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2890 # ifdef VMSISH_STATUS
2891 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
2893 # define STATUS_CURRENT STATUS_UNIX
2896 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2897 * the NATIVE status to an equivalent value. Can not be used to translate
2898 * exit code values as exit code values are not guaranteed to have any
2899 * relationship at all to errno values.
2900 * This is used when Perl is forcing errno to have a specific value.
2902 # define STATUS_UNIX_SET(n) \
2904 I32 evalue = (I32)n; \
2905 PL_statusvalue = evalue; \
2906 if (PL_statusvalue != -1) { \
2907 if (PL_statusvalue != EVMSERR) { \
2908 PL_statusvalue &= 0xFFFF; \
2909 if (MY_POSIX_EXIT) \
2910 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2911 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2914 PL_statusvalue_vms = vaxc$errno; \
2917 else PL_statusvalue_vms = SS$_ABORT; \
2918 set_vaxc_errno(PL_statusvalue_vms); \
2921 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
2922 * the NATIVE error status based on it.
2924 * When in the default mode to comply with the Perl VMS documentation,
2925 * 0 is a success and any other code sets the NATIVE status to a failure
2926 * code of SS$_ABORT.
2928 * In the new POSIX EXIT mode, native status will be set so that the
2929 * actual exit code will can be retrieved by the calling program or
2932 * If the exit code is not clearly a UNIX parent or child exit status,
2933 * it will be passed through as a VMS status.
2936 # define STATUS_UNIX_EXIT_SET(n) \
2938 I32 evalue = (I32)n; \
2939 PL_statusvalue = evalue; \
2940 if (MY_POSIX_EXIT) { \
2941 if (evalue <= 0xFF00) { \
2942 if (evalue > 0xFF) \
2943 evalue = (evalue >> child_offset_bits) & 0xFF; \
2944 PL_statusvalue_vms = \
2945 (C_FAC_POSIX | (evalue << 3 ) | \
2946 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
2947 } else /* forgive them Perl, for they have sinned */ \
2948 PL_statusvalue_vms = evalue; \
2951 PL_statusvalue_vms = SS$_NORMAL; \
2952 else if (evalue <= 0xFF00) \
2953 PL_statusvalue_vms = SS$_ABORT; \
2954 else { /* forgive them Perl, for they have sinned */ \
2955 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
2956 else PL_statusvalue_vms = vaxc$errno; \
2957 /* And obviously used a VMS status value instead of UNIX */ \
2958 PL_statusvalue = EVMSERR; \
2960 set_vaxc_errno(PL_statusvalue_vms); \
2965 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
2966 * and sets the NATIVE error status based on it. This special case
2967 * is needed to maintain compatibility with past VMS behavior.
2969 * In the default mode on VMS, this number is passed through as
2970 * both the NATIVE and UNIX status. Which makes it different
2971 * that the STATUS_UNIX_EXIT_SET.
2973 * In the new POSIX EXIT mode, native status will be set so that the
2974 * actual exit code will can be retrieved by the calling program or
2977 * A POSIX exit code is from 0 to 255. If the exit code is higher
2978 * than this, it needs to be assumed that it is a VMS exit code and
2982 # define STATUS_EXIT_SET(n) \
2984 I32 evalue = (I32)n; \
2985 PL_statusvalue = evalue; \
2986 if (MY_POSIX_EXIT) \
2987 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
2988 PL_statusvalue_vms = \
2989 (C_FAC_POSIX | (evalue << 3 ) | \
2990 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
2992 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
2993 set_vaxc_errno(PL_statusvalue_vms); \
2997 /* This macro forces a success status */
2998 # define STATUS_ALL_SUCCESS \
2999 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3001 /* This macro forces a failure status */
3002 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3003 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3004 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3006 #elif defined(__amigaos4__)
3007 /* A somewhat experimental attempt to simulate posix return code values */
3008 # define STATUS_NATIVE PL_statusvalue_posix
3009 # define STATUS_NATIVE_CHILD_SET(n) \
3011 PL_statusvalue_posix = (n); \
3012 if (PL_statusvalue_posix < 0) { \
3013 PL_statusvalue = -1; \
3016 PL_statusvalue = n << 8; \
3019 # define STATUS_UNIX_SET(n) \
3021 PL_statusvalue = (n); \
3022 if (PL_statusvalue != -1) \
3023 PL_statusvalue &= 0xFFFF; \
3025 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3026 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3027 # define STATUS_CURRENT STATUS_UNIX
3028 # define STATUS_EXIT STATUS_UNIX
3029 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3030 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3033 # define STATUS_NATIVE PL_statusvalue_posix
3034 # if defined(WCOREDUMP)
3035 # define STATUS_NATIVE_CHILD_SET(n) \
3037 PL_statusvalue_posix = (n); \
3038 if (PL_statusvalue_posix == -1) \
3039 PL_statusvalue = -1; \
3042 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3043 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3044 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3047 # elif defined(WIFEXITED)
3048 # define STATUS_NATIVE_CHILD_SET(n) \
3050 PL_statusvalue_posix = (n); \
3051 if (PL_statusvalue_posix == -1) \
3052 PL_statusvalue = -1; \
3055 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3056 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3060 # define STATUS_NATIVE_CHILD_SET(n) \
3062 PL_statusvalue_posix = (n); \
3063 if (PL_statusvalue_posix == -1) \
3064 PL_statusvalue = -1; \
3067 PL_statusvalue_posix & 0xFFFF; \
3071 # define STATUS_UNIX_SET(n) \
3073 PL_statusvalue = (n); \
3074 if (PL_statusvalue != -1) \
3075 PL_statusvalue &= 0xFFFF; \
3077 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3078 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3079 # define STATUS_CURRENT STATUS_UNIX
3080 # define STATUS_EXIT STATUS_UNIX
3081 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3082 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3085 /* flags in PL_exit_flags for nature of exit() */
3086 #define PERL_EXIT_EXPECTED 0x01
3087 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3088 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3089 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3092 /* format to use for version numbers in file/directory names */
3093 /* XXX move to Configure? */
3094 /* This was only ever used for the current version, and that can be done at
3095 compile time, as PERL_FS_VERSION, so should we just delete it? */
3096 # ifndef PERL_FS_VER_FMT
3097 # define PERL_FS_VER_FMT "%d.%d.%d"
3101 #ifndef PERL_FS_VERSION
3102 # define PERL_FS_VERSION PERL_VERSION_STRING
3105 /* This defines a way to flush all output buffers. This may be a
3106 * performance issue, so we allow people to disable it. Also, if
3107 * we are using stdio, there are broken implementations of fflush(NULL)
3108 * out there, Solaris being the most prominent.
3110 #ifndef PERL_FLUSHALL_FOR_CHILD
3111 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3112 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3113 # elif defined(FFLUSH_ALL)
3114 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3116 # define PERL_FLUSHALL_FOR_CHILD NOOP
3120 #ifndef PERL_WAIT_FOR_CHILDREN
3121 # define PERL_WAIT_FOR_CHILDREN NOOP
3124 /* the traditional thread-unsafe notion of "current interpreter". */
3125 #ifndef PERL_SET_INTERP
3126 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3129 #ifndef PERL_GET_INTERP
3130 # define PERL_GET_INTERP (PL_curinterp)
3133 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3134 # ifdef MULTIPLICITY
3135 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3137 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3141 This replaces the previous %_ "hack" by the "%p" hacks.
3142 All that is required is that the perl source does not
3143 use "%-p" or "%-<number>p" or "%<number>p" formats.
3144 These formats will still work in perl code.
3145 See comments in sv.c for further details.
3147 Robin Barker 2005-07-14
3149 No longer use %1p for VDf = %vd. RMB 2007-10-19
3153 # define SVf_(n) "-" STRINGIFY(n) "p"
3161 # define SVf32 SVf_(32)
3165 # define SVf256 SVf_(256)
3168 #define SVfARG(p) ((void*)(p))
3174 /* Not ideal, but we cannot easily include a number in an already-numeric
3175 * format sequence. */
3177 # define HEKf256 "3p"
3180 #define HEKfARG(p) ((void*)(p))
3182 /* Takes three arguments: is_utf8, length, str */
3184 # define UTF8f "d%" UVuf "%4p"
3186 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3189 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3192 /* not used; but needed for backward compatibility with XS code? - RMB */
3198 #ifdef HASATTRIBUTE_DEPRECATED
3199 # define __attribute__deprecated__ __attribute__((deprecated))
3201 #ifdef HASATTRIBUTE_FORMAT
3202 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3204 #ifdef HASATTRIBUTE_MALLOC
3205 # define __attribute__malloc__ __attribute__((__malloc__))
3207 #ifdef HASATTRIBUTE_NONNULL
3208 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
3210 #ifdef HASATTRIBUTE_NORETURN
3211 # define __attribute__noreturn__ __attribute__((noreturn))
3213 #ifdef HASATTRIBUTE_PURE
3214 # define __attribute__pure__ __attribute__((pure))
3216 #ifdef HASATTRIBUTE_UNUSED
3217 # define __attribute__unused__ __attribute__((unused))
3219 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
3220 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
3223 /* If we haven't defined the attributes yet, define them to blank. */
3224 #ifndef __attribute__deprecated__
3225 # define __attribute__deprecated__
3227 #ifndef __attribute__format__
3228 # define __attribute__format__(x,y,z)
3230 #ifndef __attribute__malloc__
3231 # define __attribute__malloc__
3233 #ifndef __attribute__nonnull__
3234 # define __attribute__nonnull__(a)
3236 #ifndef __attribute__noreturn__
3237 # define __attribute__noreturn__
3239 #ifndef __attribute__pure__
3240 # define __attribute__pure__
3242 #ifndef __attribute__unused__
3243 # define __attribute__unused__
3245 #ifndef __attribute__warn_unused_result__
3246 # define __attribute__warn_unused_result__
3249 #if !defined(DEBUGGING) && !defined(NDEBUG)
3254 /* For functions that are marked as __attribute__noreturn__, it's not
3255 appropriate to call return. In either case, include the lint directive.
3257 #ifdef HASATTRIBUTE_NORETURN
3258 # define NORETURN_FUNCTION_END NOT_REACHED;
3260 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3263 /* Some OS warn on NULL format to printf */
3264 #ifdef PRINTF_FORMAT_NULL_OK
3265 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3267 # define __attribute__format__null_ok__(x,y,z)
3270 #ifdef HAS_BUILTIN_EXPECT
3271 # define EXPECT(expr,val) __builtin_expect(expr,val)
3273 # define EXPECT(expr,val) (expr)
3275 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3276 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3277 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3281 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3282 time invariants. That is, their argument must be a constant expression that
3283 can be verified by the compiler. This expression can contain anything that's
3284 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3285 the expression evaluates to 0, compilation fails.
3286 Because they generate no runtime code (i.e. their use is "free"), they're
3287 always active, even under non-DEBUGGING builds.
3288 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3289 file scope (outside of any function).
3290 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3293 #if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
3294 /* static_assert is a macro defined in <assert.h> in C11 or a compiler
3295 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3296 matter what <assert.h> says.
3298 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3300 /* We use a bit-field instead of an array because gcc accepts
3301 'typedef char x[n]' where n is not a compile-time constant.
3302 We want to enforce constantness.
3304 # define STATIC_ASSERT_2(COND, SUFFIX) \
3306 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3307 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3308 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3309 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3311 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3312 error (static_assert is a declaration, and only statements can have labels).
3314 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3316 #ifndef __has_builtin
3317 # define __has_builtin(x) 0 /* not a clang style compiler */
3320 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3321 hint to a compiler about a statement of fact in a function call free
3322 expression, which allows the compiler to generate better machine code.
3323 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3324 the control path is unreachable. In a for loop, ASSUME can be used to hint
3325 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3326 intrinsic function, see its documents for more details.
3330 # if __has_builtin(__builtin_unreachable) \
3331 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3332 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3333 # elif defined(_MSC_VER)
3334 # define ASSUME(x) __assume(x)
3335 # elif defined(__ARMCC_VERSION) /* untested */
3336 # define ASSUME(x) __promise(x)
3338 /* a random compiler might define assert to its own special optimization token
3339 so pass it through to C lib as a last resort */
3340 # define ASSUME(x) assert(x)
3343 # define ASSUME(x) assert(x)
3346 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3347 # define NOT_REACHED
3348 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3349 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3350 # define NOT_REACHED STMT_START { ASSUME(0); __builtin_unreachable(); } STMT_END
3352 # define NOT_REACHED ASSUME(0)
3355 /* Some unistd.h's give a prototype for pause() even though
3356 HAS_PAUSE ends up undefined. This causes the #define
3357 below to be rejected by the compiler. Sigh.
3362 #define Pause() sleep((32767<<16)+32767)
3366 # ifdef IOCPARM_MASK
3367 /* on BSDish systems we're safe */
3368 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3369 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3370 /* on Linux systems we're safe; except when we're not [perl #38223] */
3371 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3373 /* otherwise guess at what's safe */
3374 # define IOCPARM_LEN(x) 256
3378 #if defined(__CYGWIN__)
3380 * This symbol, if defined, indicates that the program should
3381 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3382 * that a file is in "binary" mode -- that is, that no translation
3383 * of bytes occurs on read or write operations.
3385 # define USEMYBINMODE /**/
3386 # include <io.h> /* for setmode() prototype */
3387 # define my_binmode(fp, iotype, mode) \
3388 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3392 void init_os_extras(void);
3395 #ifdef UNION_ANY_DEFINITION
3396 UNION_ANY_DEFINITION;
3414 void (*any_dptr) (void*);
3415 void (*any_dxptr) (pTHX_ void*);
3419 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3421 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3422 #define FILTER_DATA(idx) \
3423 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3424 #define FILTER_ISREADER(idx) \
3425 (PL_parser && PL_parser->rsfp_filters \
3426 && idx >= AvFILLp(PL_parser->rsfp_filters))
3427 #define PERL_FILTER_EXISTS(i) \
3428 (PL_parser && PL_parser->rsfp_filters \
3429 && (i) <= av_tindex(PL_parser->rsfp_filters))
3431 #if defined(_AIX) && !defined(_AIX43)
3432 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3433 /* We cannot include <crypt.h> to get the struct crypt_data
3434 * because of setkey prototype problems when threading */
3435 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3436 /* From OSF, Not needed in AIX
3444 #endif /* threading */
3447 #ifndef PERL_CALLCONV
3449 # define PERL_CALLCONV extern "C"
3451 # define PERL_CALLCONV
3454 #ifndef PERL_CALLCONV_NO_RET
3455 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3458 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3459 dont have a noreturn as a declaration specifier
3461 #ifndef PERL_STATIC_NO_RET
3462 # define PERL_STATIC_NO_RET STATIC
3464 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3465 builds that dont have a noreturn as a declaration specifier
3467 #ifndef PERL_STATIC_INLINE_NO_RET
3468 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3472 # include "iperlsys.h"
3475 #ifdef __LIBCATAMOUNT__
3476 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3478 #define FAKE_BIT_BUCKET
3481 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3482 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3483 * Configure, despite their names being similar to other defines like
3484 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3485 * hashes. Therefore to enable/disable the hash randomisation defines
3486 * use the Configure -Accflags=... instead. */
3487 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3488 # define USE_HASH_SEED
3494 /* macros to define bit-fields in structs. */
3495 #ifndef PERL_BITFIELD8
3496 # define PERL_BITFIELD8 unsigned
3498 #ifndef PERL_BITFIELD16
3499 # define PERL_BITFIELD16 unsigned
3501 #ifndef PERL_BITFIELD32
3502 # define PERL_BITFIELD32 unsigned
3512 #include "opnames.h"
3519 #include "warnings.h"
3522 /* these would be in doio.h if there was such a file */
3523 #define my_stat() my_stat_flags(SV_GMAGIC)
3524 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3526 /* defined in sv.c, but also used in [ach]v.c */
3529 #undef _XPVCV_COMMON
3533 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3535 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3537 /* These have to be predeclared, as they are used in proto.h which is #included
3538 * before their definitions in regcomp.h. */
3541 typedef struct regnode_charclass regnode_charclass;
3543 struct regnode_charclass_class;
3545 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3546 * used under /l matching */
3547 typedef struct regnode_charclass_class regnode_charclass_posixl;
3549 typedef struct regnode_ssc regnode_ssc;
3550 typedef struct RExC_state_t RExC_state_t;
3551 struct _reg_trie_data;
3555 struct ptr_tbl_ent {
3556 struct ptr_tbl_ent* next;
3562 struct ptr_tbl_ent** tbl_ary;
3565 struct ptr_tbl_arena *tbl_arena;
3566 struct ptr_tbl_ent *tbl_arena_next;
3567 struct ptr_tbl_ent *tbl_arena_end;
3570 #if defined(htonl) && !defined(HAS_HTONL)
3573 #if defined(htons) && !defined(HAS_HTONS)
3576 #if defined(ntohl) && !defined(HAS_NTOHL)
3579 #if defined(ntohs) && !defined(HAS_NTOHS)
3587 # if (BYTEORDER & 0xffff) == 0x4321
3588 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3589 re-order their values. However, to behave identically to the alternative
3590 implementations, they should truncate to the correct size. */
3591 # define ntohl(x) ((x)&0xFFFFFFFF)
3592 # define htonl(x) ntohl(x)
3593 # define ntohs(x) ((x)&0xFFFF)
3594 # define htons(x) ntohs(x)
3595 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3597 /* Note that we can't straight out declare our own htonl and htons because
3598 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3599 to avoid the overhead of initialising the socket subsystem, but the headers
3600 that *declare* the various functions are still seen. If we declare our own
3601 htonl etc they will clash with the declarations in the Win32 headers. */
3603 PERL_STATIC_INLINE U32
3604 my_swap32(const U32 x) {
3605 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3606 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3609 PERL_STATIC_INLINE U16
3610 my_swap16(const U16 x) {
3611 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3614 # define htonl(x) my_swap32(x)
3615 # define ntohl(x) my_swap32(x)
3616 # define ntohs(x) my_swap16(x)
3617 # define htons(x) my_swap16(x)
3619 # error "Unsupported byteorder"
3620 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3621 the error message. Please check the value of the macro BYTEORDER, as defined
3622 in config.h. The values of BYTEORDER we expect are
3624 big endian little endian
3625 32 bit 0x4321 0x1234
3626 64 bit 0x87654321 0x12345678
3628 If you have a system with a different byte order, please see
3629 pod/perlhack.pod for how to submit a patch to add supporting code.
3635 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3638 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3639 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3640 re-order their values. However, to behave identically to the alternative
3641 implementations, they should truncate to the correct size. */
3642 # define vtohl(x) ((x)&0xFFFFFFFF)
3643 # define vtohs(x) ((x)&0xFFFF)
3644 # define htovl(x) vtohl(x)
3645 # define htovs(x) vtohs(x)
3646 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3647 # define vtohl(x) ((((x)&0xFF)<<24) \
3649 +(((x)&0x0000FF00)<<8) \
3650 +(((x)&0x00FF0000)>>8) )
3651 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3652 # define htovl(x) vtohl(x)
3653 # define htovs(x) vtohs(x)
3655 # error "Unsupported byteorder"
3656 /* If you have need for current perl on PDP-11 or similar, and can help test
3657 that blead keeps working on a mixed-endian system, then see
3658 pod/perlhack.pod for how to submit patches to things working again. */
3661 /* *MAX Plus 1. A floating point value.
3662 Hopefully expressed in a way that dodgy floating point can't mess up.
3663 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3665 May find that some broken compiler will want the value cast to I32.
3666 [after the shift, as signed >> may not be as secure as unsigned >>]
3668 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3669 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3670 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3671 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3672 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3674 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
3676 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3677 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3678 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3680 /* This may look like unnecessary jumping through hoops, but converting
3681 out of range floating point values to integers *is* undefined behaviour,
3682 and it is starting to bite.
3685 #define I_32(what) (cast_i32((NV)(what)))
3686 #define U_32(what) (cast_ulong((NV)(what)))
3687 #define I_V(what) (cast_iv((NV)(what)))
3688 #define U_V(what) (cast_uv((NV)(what)))
3690 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3691 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3692 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3693 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3694 : ((n) < U32_MAX_P1 ? (U32) (n) \
3695 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3696 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3697 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3698 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3699 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3700 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3701 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3704 #define U_S(what) ((U16)U_32(what))
3705 #define U_I(what) ((unsigned int)U_32(what))
3706 #define U_L(what) U_32(what)
3709 # define Perl_signbit signbit
3712 /* These do not care about the fractional part, only about the range. */
3713 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
3714 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
3716 /* Used with UV/IV arguments: */
3717 /* XXXX: need to speed it up */
3718 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3719 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3726 #if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
3727 Uid_t getuid (void);
3728 Uid_t geteuid (void);
3729 Gid_t getgid (void);
3730 Gid_t getegid (void);
3734 #ifndef Perl_debug_log
3735 # define Perl_debug_log PerlIO_stderr()
3738 #ifndef Perl_error_log
3739 # define Perl_error_log (PL_stderrgv \
3740 && isGV(PL_stderrgv) \
3741 && GvIOp(PL_stderrgv) \
3742 && IoOFP(GvIOp(PL_stderrgv)) \
3743 ? IoOFP(GvIOp(PL_stderrgv)) \
3748 #define DEBUG_p_FLAG 0x00000001 /* 1 */
3749 #define DEBUG_s_FLAG 0x00000002 /* 2 */
3750 #define DEBUG_l_FLAG 0x00000004 /* 4 */
3751 #define DEBUG_t_FLAG 0x00000008 /* 8 */
3752 #define DEBUG_o_FLAG 0x00000010 /* 16 */
3753 #define DEBUG_c_FLAG 0x00000020 /* 32 */
3754 #define DEBUG_P_FLAG 0x00000040 /* 64 */
3755 #define DEBUG_m_FLAG 0x00000080 /* 128 */
3756 #define DEBUG_f_FLAG 0x00000100 /* 256 */
3757 #define DEBUG_r_FLAG 0x00000200 /* 512 */
3758 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
3759 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
3760 /* U is reserved for Unofficial, exploratory hacking */
3761 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
3763 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
3764 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
3765 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
3766 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
3767 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
3768 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
3769 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
3770 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
3771 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
3772 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
3773 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
3774 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
3775 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
3776 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
3777 #define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */
3779 #define DEBUG_DB_RECURSE_FLAG 0x40000000
3780 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
3782 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
3783 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
3784 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
3785 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
3786 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
3787 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
3788 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
3789 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
3790 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
3791 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
3792 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
3793 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
3794 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
3795 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
3796 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
3797 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
3798 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
3799 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
3800 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
3801 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
3802 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
3803 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
3804 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
3805 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
3806 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
3807 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
3808 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
3809 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
3810 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
3811 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
3812 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
3816 # define DEBUG_p_TEST DEBUG_p_TEST_
3817 # define DEBUG_s_TEST DEBUG_s_TEST_
3818 # define DEBUG_l_TEST DEBUG_l_TEST_
3819 # define DEBUG_t_TEST DEBUG_t_TEST_
3820 # define DEBUG_o_TEST DEBUG_o_TEST_
3821 # define DEBUG_c_TEST DEBUG_c_TEST_
3822 # define DEBUG_P_TEST DEBUG_P_TEST_
3823 # define DEBUG_m_TEST DEBUG_m_TEST_
3824 # define DEBUG_f_TEST DEBUG_f_TEST_
3825 # define DEBUG_r_TEST DEBUG_r_TEST_
3826 # define DEBUG_x_TEST DEBUG_x_TEST_
3827 # define DEBUG_u_TEST DEBUG_u_TEST_
3828 # define DEBUG_U_TEST DEBUG_U_TEST_
3829 # define DEBUG_X_TEST DEBUG_X_TEST_
3830 # define DEBUG_D_TEST DEBUG_D_TEST_
3831 # define DEBUG_S_TEST DEBUG_S_TEST_
3832 # define DEBUG_T_TEST DEBUG_T_TEST_
3833 # define DEBUG_R_TEST DEBUG_R_TEST_
3834 # define DEBUG_J_TEST DEBUG_J_TEST_
3835 # define DEBUG_v_TEST DEBUG_v_TEST_
3836 # define DEBUG_C_TEST DEBUG_C_TEST_
3837 # define DEBUG_A_TEST DEBUG_A_TEST_
3838 # define DEBUG_q_TEST DEBUG_q_TEST_
3839 # define DEBUG_M_TEST DEBUG_M_TEST_
3840 # define DEBUG_B_TEST DEBUG_B_TEST_
3841 # define DEBUG_L_TEST DEBUG_L_TEST_
3842 # define DEBUG_i_TEST DEBUG_i_TEST_
3843 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
3844 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
3845 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
3846 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
3848 # define PERL_DEB(a) a
3849 # define PERL_DEB2(a,b) a
3850 # define PERL_DEBUG(a) if (PL_debug) a
3851 # define DEBUG_p(a) if (DEBUG_p_TEST) a
3852 # define DEBUG_s(a) if (DEBUG_s_TEST) a
3853 # define DEBUG_l(a) if (DEBUG_l_TEST) a
3854 # define DEBUG_t(a) if (DEBUG_t_TEST) a
3855 # define DEBUG_o(a) if (DEBUG_o_TEST) a
3856 # define DEBUG_c(a) if (DEBUG_c_TEST) a
3857 # define DEBUG_P(a) if (DEBUG_P_TEST) a
3859 /* Temporarily turn off memory debugging in case the a
3860 * does memory allocation, either directly or indirectly. */
3861 # define DEBUG_m(a) \
3863 if (PERL_GET_INTERP) { \
3865 if (DEBUG_m_TEST) { \
3866 PL_debug &= ~DEBUG_m_FLAG; \
3868 PL_debug |= DEBUG_m_FLAG; \
3873 # define DEBUG__(t, a) \
3875 if (t) STMT_START {a;} STMT_END; \
3878 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
3880 #ifndef PERL_EXT_RE_BUILD
3881 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
3883 # define DEBUG_r(a) STMT_START {a;} STMT_END
3884 #endif /* PERL_EXT_RE_BUILD */
3886 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
3887 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
3888 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
3889 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
3890 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
3891 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
3892 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
3893 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
3894 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
3896 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
3897 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
3898 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
3899 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
3900 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
3901 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
3902 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
3903 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
3904 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
3905 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
3906 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
3908 #else /* DEBUGGING */
3910 # define DEBUG_p_TEST (0)
3911 # define DEBUG_s_TEST (0)
3912 # define DEBUG_l_TEST (0)
3913 # define DEBUG_t_TEST (0)
3914 # define DEBUG_o_TEST (0)
3915 # define DEBUG_c_TEST (0)
3916 # define DEBUG_P_TEST (0)
3917 # define DEBUG_m_TEST (0)
3918 # define DEBUG_f_TEST (0)
3919 # define DEBUG_r_TEST (0)
3920 # define DEBUG_x_TEST (0)
3921 # define DEBUG_u_TEST (0)
3922 # define DEBUG_U_TEST (0)
3923 # define DEBUG_X_TEST (0)
3924 # define DEBUG_D_TEST (0)
3925 # define DEBUG_S_TEST (0)
3926 # define DEBUG_T_TEST (0)
3927 # define DEBUG_R_TEST (0)
3928 # define DEBUG_J_TEST (0)
3929 # define DEBUG_v_TEST (0)
3930 # define DEBUG_C_TEST (0)
3931 # define DEBUG_A_TEST (0)
3932 # define DEBUG_q_TEST (0)
3933 # define DEBUG_M_TEST (0)
3934 # define DEBUG_B_TEST (0)
3935 # define DEBUG_L_TEST (0)
3936 # define DEBUG_i_TEST (0)
3937 # define DEBUG_Xv_TEST (0)
3938 # define DEBUG_Uv_TEST (0)
3939 # define DEBUG_Pv_TEST (0)
3940 # define DEBUG_Lv_TEST (0)
3942 # define PERL_DEB(a)
3943 # define PERL_DEB2(a,b) b
3944 # define PERL_DEBUG(a)
3971 # define DEBUG_Xv(a)
3972 # define DEBUG_Uv(a)
3973 # define DEBUG_Pv(a)
3974 # define DEBUG_Lv(a)
3975 #endif /* DEBUGGING */
3978 #define DEBUG_SCOPE(where) \
3980 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
3981 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
3982 __FILE__, __LINE__));
3984 /* Keep the old croak based assert for those who want it, and as a fallback if
3985 the platform is so heretically non-ANSI that it can't assert. */
3987 #define Perl_assert(what) PERL_DEB2( \
3988 ((what) ? ((void) 0) : \
3989 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
3990 "\", line %d", STRINGIFY(what), __LINE__), \
3991 (void) 0)), ((void)0))
3993 /* assert() gets defined if DEBUGGING.
3994 * If no DEBUGGING, the <assert.h> has not been included. */
3996 # define assert(what) Perl_assert(what)
3999 # define assert_(what) assert(what),
4001 # define assert_(what)
4005 I32 (*uf_val)(pTHX_ IV, SV*);
4006 I32 (*uf_set)(pTHX_ IV, SV*);
4010 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4011 * XS code wanting to be backward compatible can do something
4012 * like the following:
4014 #ifndef PERL_MG_UFUNC
4015 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4018 static PERL_MG_UFUNC(foo_get, index, val)
4028 #ifndef PERL_MG_UFUNC
4029 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4034 /* isfinite and others are here rather than in math.h as C99 stipulates */
4039 # if !defined(WIN32) && !defined(VMS)
4041 char *crypt (const char*, const char*);
4043 # endif /* !WIN32 */
4046 char *getlogin (void);
4048 # endif /* !WIN32 */
4049 #endif /* !__cplusplus */
4051 /* Fixme on VMS. This needs to be a run-time, not build time options */
4052 /* Also rename() is affected by this */
4053 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4054 #define UNLINK unlnk
4055 I32 unlnk (pTHX_ const char*);
4057 #define UNLINK PerlLIO_unlink
4060 /* some versions of glibc are missing the setresuid() proto */
4061 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4062 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4064 /* some versions of glibc are missing the setresgid() proto */
4065 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4066 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4069 #ifndef HAS_SETREUID
4070 # ifdef HAS_SETRESUID
4071 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4072 # define HAS_SETREUID
4075 #ifndef HAS_SETREGID
4076 # ifdef HAS_SETRESGID
4077 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4078 # define HAS_SETREGID
4082 /* Sighandler_t defined in iperlsys.h */
4084 #ifdef HAS_SIGACTION
4085 typedef struct sigaction Sigsave_t;
4087 typedef Sighandler_t Sigsave_t;
4098 # define RUNOPS_DEFAULT Perl_runops_debug
4100 # define RUNOPS_DEFAULT Perl_runops_standard
4103 #if defined(USE_PERLIO)
4104 EXTERN_C void PerlIO_teardown(void);
4105 # ifdef USE_ITHREADS
4106 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4107 # define PERLIO_TERM \
4109 PerlIO_teardown(); \
4110 MUTEX_DESTROY(&PL_perlio_mutex);\
4113 # define PERLIO_INIT
4114 # define PERLIO_TERM PerlIO_teardown()
4117 # define PERLIO_INIT
4118 # define PERLIO_TERM
4122 # ifdef MUTEX_INIT_CALLS_MALLOC
4123 # define MALLOC_INIT \
4125 PL_malloc_mutex = NULL; \
4126 MUTEX_INIT(&PL_malloc_mutex); \
4128 # define MALLOC_TERM \
4130 perl_mutex tmp = PL_malloc_mutex; \
4131 PL_malloc_mutex = NULL; \
4132 MUTEX_DESTROY(&tmp); \
4135 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4136 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4139 # define MALLOC_INIT
4140 # define MALLOC_TERM
4143 #if defined(PERL_IMPLICIT_CONTEXT)
4145 struct perl_memory_debug_header;
4146 struct perl_memory_debug_header {
4148 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4151 struct perl_memory_debug_header *prev;
4152 struct perl_memory_debug_header *next;
4153 # ifdef PERL_DEBUG_READONLY_COW
4158 #elif defined(PERL_DEBUG_READONLY_COW)
4160 struct perl_memory_debug_header;
4161 struct perl_memory_debug_header {
4167 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4169 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4170 (sizeof(struct perl_memory_debug_header) + \
4171 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4172 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4175 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4178 #ifdef PERL_TRACK_MEMPOOL
4179 # ifdef PERL_DEBUG_READONLY_COW
4180 # define INIT_TRACK_MEMPOOL(header, interp) \
4182 (header).interpreter = (interp); \
4183 (header).prev = (header).next = &(header); \
4184 (header).readonly = 0; \
4187 # define INIT_TRACK_MEMPOOL(header, interp) \
4189 (header).interpreter = (interp); \
4190 (header).prev = (header).next = &(header); \
4194 # define INIT_TRACK_MEMPOOL(header, interp)
4197 #ifdef I_MALLOCMALLOC
4198 /* Needed for malloc_size(), malloc_good_size() on some systems */
4199 # include <malloc/malloc.h>
4203 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4205 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4206 # ifdef PERL_TRACK_MEMPOOL
4207 # define Perl_safesysmalloc_size(where) \
4208 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4210 # define Perl_safesysmalloc_size(where) malloc_size(where)
4213 # ifdef HAS_MALLOC_GOOD_SIZE
4214 # ifdef PERL_TRACK_MEMPOOL
4215 # define Perl_malloc_good_size(how_much) \
4216 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4218 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4221 /* Having this as the identity operation makes some code simpler. */
4222 # define Perl_malloc_good_size(how_much) (how_much)
4226 typedef int (*runops_proc_t)(pTHX);
4227 typedef void (*share_proc_t) (pTHX_ SV *sv);
4228 typedef int (*thrhook_proc_t) (pTHX);
4229 typedef OP* (*PPADDR_t[]) (pTHX);
4230 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4231 typedef void (*despatch_signals_proc_t) (pTHX);
4233 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4234 # include <crt_externs.h> /* for the env array */
4235 # define environ (*_NSGetEnviron())
4236 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4237 /* VMS and some other platforms don't use the environ array */
4238 EXTERN_C char **environ; /* environment variables supplied via exec */
4241 #define PERL_PATCHLEVEL_H_IMPLICIT
4242 #include "patchlevel.h"
4243 #undef PERL_PATCHLEVEL_H_IMPLICIT
4245 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4246 STRINGIFY(PERL_VERSION) "." \
4247 STRINGIFY(PERL_SUBVERSION)
4249 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4250 STRINGIFY(PERL_API_VERSION) "." \
4251 STRINGIFY(PERL_API_SUBVERSION)
4255 /* handy constants */
4256 EXTCONST char PL_warn_uninit[]
4257 INIT("Use of uninitialized value%s%s%s");
4258 EXTCONST char PL_warn_uninit_sv[]
4259 INIT("Use of uninitialized value%" SVf "%s%s");
4260 EXTCONST char PL_warn_nosemi[]
4261 INIT("Semicolon seems to be missing");
4262 EXTCONST char PL_warn_reserved[]
4263 INIT("Unquoted string \"%s\" may clash with future reserved word");
4264 EXTCONST char PL_warn_nl[]
4265 INIT("Unsuccessful %s on filename containing newline");
4266 EXTCONST char PL_no_wrongref[]
4267 INIT("Can't use %s ref as %s ref");
4268 /* The core no longer needs this here. If you require the string constant,
4269 please inline a copy into your own code. */
4270 EXTCONST char PL_no_symref[] __attribute__deprecated__
4271 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4272 EXTCONST char PL_no_symref_sv[]
4273 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4275 EXTCONST char PL_no_usym[]
4276 INIT("Can't use an undefined value as %s reference");
4277 EXTCONST char PL_no_aelem[]
4278 INIT("Modification of non-creatable array value attempted, subscript %d");
4279 EXTCONST char PL_no_helem_sv[]
4280 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4281 EXTCONST char PL_no_modify[]
4282 INIT("Modification of a read-only value attempted");
4283 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4284 INIT("Out of memory!\n");
4285 EXTCONST char PL_no_security[]
4286 INIT("Insecure dependency in %s%s");
4287 EXTCONST char PL_no_sock_func[]
4288 INIT("Unsupported socket function \"%s\" called");
4289 EXTCONST char PL_no_dir_func[]
4290 INIT("Unsupported directory function \"%s\" called");
4291 EXTCONST char PL_no_func[]
4292 INIT("The %s function is unimplemented");
4293 EXTCONST char PL_no_myglob[]
4294 INIT("\"%s\" %se %s can't be in a package");
4295 EXTCONST char PL_no_localize_ref[]
4296 INIT("Can't localize through a reference");
4297 EXTCONST char PL_memory_wrap[]
4298 INIT("panic: memory wrap");
4300 EXTCONST char PL_Yes[]
4302 EXTCONST char PL_No[]
4304 EXTCONST char PL_Zero[]
4306 EXTCONST char PL_hexdigit[]
4307 INIT("0123456789abcdef0123456789ABCDEF");
4309 /* This is constant on most architectures, a global on OS/2 */
4311 EXTCONST char PL_sh_path[]
4312 INIT(SH_PATH); /* full path of shell */
4316 EXTCONST char PL_cshname[]
4318 # define PL_cshlen (sizeof(CSH "") - 1)
4321 /* These are baked at compile time into any shared perl library.
4322 In future releases this will allow us in main() to sanity test the
4323 library we're linking against. */
4325 EXTCONST U8 PL_revision
4326 INIT(PERL_REVISION);
4327 EXTCONST U8 PL_version
4329 EXTCONST U8 PL_subversion
4330 INIT(PERL_SUBVERSION);
4332 EXTCONST char PL_uuemap[65]
4333 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4335 /* a special string address whose value is "isa", but which perl knows
4336 * to treat as if it were really "DOES" when printing the method name in
4337 * the "Can't call method '%s'" error message */
4338 EXTCONST char PL_isa_DOES[]
4342 EXTCONST char PL_uudmap[256] =
4344 # include "uuudmap.h"
4346 # include "uudmap.h"
4349 EXTCONST char PL_bitcount[256] =
4351 # include "ubitcount.h"
4353 # include "bitcount.h"
4356 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4357 EXTCONST int PL_sig_num[] = { SIG_NUM };
4359 EXTCONST char PL_uudmap[256];
4360 EXTCONST char PL_bitcount[256];
4361 EXTCONST char* const PL_sig_name[];
4362 EXTCONST int PL_sig_num[];
4365 /* fast conversion and case folding tables. The folding tables complement the
4366 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4367 * folds such as outside the range or to multiple characters. */
4372 /* The EBCDIC fold table depends on the code page, and hence is found in
4375 EXTCONST unsigned char PL_fold[] = {
4376 0, 1, 2, 3, 4, 5, 6, 7,
4377 8, 9, 10, 11, 12, 13, 14, 15,
4378 16, 17, 18, 19, 20, 21, 22, 23,
4379 24, 25, 26, 27, 28, 29, 30, 31,
4380 32, 33, 34, 35, 36, 37, 38, 39,
4381 40, 41, 42, 43, 44, 45, 46, 47,
4382 48, 49, 50, 51, 52, 53, 54, 55,
4383 56, 57, 58, 59, 60, 61, 62, 63,
4384 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4385 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4386 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4387 'x', 'y', 'z', 91, 92, 93, 94, 95,
4388 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4389 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4390 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4391 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4392 128, 129, 130, 131, 132, 133, 134, 135,
4393 136, 137, 138, 139, 140, 141, 142, 143,
4394 144, 145, 146, 147, 148, 149, 150, 151,
4395 152, 153, 154, 155, 156, 157, 158, 159,
4396 160, 161, 162, 163, 164, 165, 166, 167,
4397 168, 169, 170, 171, 172, 173, 174, 175,
4398 176, 177, 178, 179, 180, 181, 182, 183,
4399 184, 185, 186, 187, 188, 189, 190, 191,
4400 192, 193, 194, 195, 196, 197, 198, 199,
4401 200, 201, 202, 203, 204, 205, 206, 207,
4402 208, 209, 210, 211, 212, 213, 214, 215,
4403 216, 217, 218, 219, 220, 221, 222, 223,
4404 224, 225, 226, 227, 228, 229, 230, 231,
4405 232, 233, 234, 235, 236, 237, 238, 239,
4406 240, 241, 242, 243, 244, 245, 246, 247,
4407 248, 249, 250, 251, 252, 253, 254, 255
4409 EXTCONST unsigned char PL_fold_latin1[] = {
4410 /* Full latin1 complement folding, except for three problematic code points:
4411 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4412 * fold complements outside the Latin1 range, so can't match something
4413 * that isn't in utf8.
4414 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4415 * not one, so can't be represented in this table.
4417 * All have to be specially handled */
4418 0, 1, 2, 3, 4, 5, 6, 7,
4419 8, 9, 10, 11, 12, 13, 14, 15,
4420 16, 17, 18, 19, 20, 21, 22, 23,
4421 24, 25, 26, 27, 28, 29, 30, 31,
4422 32, 33, 34, 35, 36, 37, 38, 39,
4423 40, 41, 42, 43, 44, 45, 46, 47,
4424 48, 49, 50, 51, 52, 53, 54, 55,
4425 56, 57, 58, 59, 60, 61, 62, 63,
4426 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4427 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4428 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4429 'x', 'y', 'z', 91, 92, 93, 94, 95,
4430 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4431 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4432 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4433 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4434 128, 129, 130, 131, 132, 133, 134, 135,
4435 136, 137, 138, 139, 140, 141, 142, 143,
4436 144, 145, 146, 147, 148, 149, 150, 151,
4437 152, 153, 154, 155, 156, 157, 158, 159,
4438 160, 161, 162, 163, 164, 165, 166, 167,
4439 168, 169, 170, 171, 172, 173, 174, 175,
4440 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4441 184, 185, 186, 187, 188, 189, 190, 191,
4442 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4443 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4444 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4445 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4446 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4447 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4448 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4449 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4450 255 /* y with diaeresis */
4453 /* If these tables are accessed through ebcdic, the access will be converted to
4455 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4456 0, 1, 2, 3, 4, 5, 6, 7,
4457 8, 9, 10, 11, 12, 13, 14, 15,
4458 16, 17, 18, 19, 20, 21, 22, 23,
4459 24, 25, 26, 27, 28, 29, 30, 31,
4460 32, 33, 34, 35, 36, 37, 38, 39,
4461 40, 41, 42, 43, 44, 45, 46, 47,
4462 48, 49, 50, 51, 52, 53, 54, 55,
4463 56, 57, 58, 59, 60, 61, 62, 63,
4464 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4465 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4466 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4467 'x', 'y', 'z', 91, 92, 93, 94, 95,
4468 96, 97, 98, 99, 100, 101, 102, 103,
4469 104, 105, 106, 107, 108, 109, 110, 111,
4470 112, 113, 114, 115, 116, 117, 118, 119,
4471 120, 121, 122, 123, 124, 125, 126, 127,
4472 128, 129, 130, 131, 132, 133, 134, 135,
4473 136, 137, 138, 139, 140, 141, 142, 143,
4474 144, 145, 146, 147, 148, 149, 150, 151,
4475 152, 153, 154, 155, 156, 157, 158, 159,
4476 160, 161, 162, 163, 164, 165, 166, 167,
4477 168, 169, 170, 171, 172, 173, 174, 175,
4478 176, 177, 178, 179, 180, 181, 182, 183,
4479 184, 185, 186, 187, 188, 189, 190, 191,
4480 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4481 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4482 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4483 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4484 224, 225, 226, 227, 228, 229, 230, 231,
4485 232, 233, 234, 235, 236, 237, 238, 239,
4486 240, 241, 242, 243, 244, 245, 246, 247,
4487 248, 249, 250, 251, 252, 253, 254, 255
4490 /* upper and title case of latin1 characters, modified so that the three tricky
4491 * ones are mapped to 255 (which is one of the three) */
4492 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4493 0, 1, 2, 3, 4, 5, 6, 7,
4494 8, 9, 10, 11, 12, 13, 14, 15,
4495 16, 17, 18, 19, 20, 21, 22, 23,
4496 24, 25, 26, 27, 28, 29, 30, 31,
4497 32, 33, 34, 35, 36, 37, 38, 39,
4498 40, 41, 42, 43, 44, 45, 46, 47,
4499 48, 49, 50, 51, 52, 53, 54, 55,
4500 56, 57, 58, 59, 60, 61, 62, 63,
4501 64, 65, 66, 67, 68, 69, 70, 71,
4502 72, 73, 74, 75, 76, 77, 78, 79,
4503 80, 81, 82, 83, 84, 85, 86, 87,
4504 88, 89, 90, 91, 92, 93, 94, 95,
4505 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4506 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4507 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4508 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4509 128, 129, 130, 131, 132, 133, 134, 135,
4510 136, 137, 138, 139, 140, 141, 142, 143,
4511 144, 145, 146, 147, 148, 149, 150, 151,
4512 152, 153, 154, 155, 156, 157, 158, 159,
4513 160, 161, 162, 163, 164, 165, 166, 167,
4514 168, 169, 170, 171, 172, 173, 174, 175,
4515 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4516 184, 185, 186, 187, 188, 189, 190, 191,
4517 192, 193, 194, 195, 196, 197, 198, 199,
4518 200, 201, 202, 203, 204, 205, 206, 207,
4519 208, 209, 210, 211, 212, 213, 214, 215,
4520 216, 217, 218, 219, 220, 221, 222,
4521 #if UNICODE_MAJOR_VERSION > 2 \
4522 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4523 && UNICODE_DOT_DOT_VERSION >= 8)
4525 #else /* uc() is itself in early unicode */
4528 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4529 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4530 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4531 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4533 #endif /* !EBCDIC, but still in DOINIT */
4534 #else /* ! DOINIT */
4536 EXTCONST unsigned char PL_fold[];
4537 EXTCONST unsigned char PL_fold_latin1[];
4538 EXTCONST unsigned char PL_mod_latin1_uc[];
4539 EXTCONST unsigned char PL_latin1_lc[];
4543 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4545 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4546 0, 1, 2, 3, 4, 5, 6, 7,
4547 8, 9, 10, 11, 12, 13, 14, 15,
4548 16, 17, 18, 19, 20, 21, 22, 23,
4549 24, 25, 26, 27, 28, 29, 30, 31,
4550 32, 33, 34, 35, 36, 37, 38, 39,
4551 40, 41, 42, 43, 44, 45, 46, 47,
4552 48, 49, 50, 51, 52, 53, 54, 55,
4553 56, 57, 58, 59, 60, 61, 62, 63,
4554 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4555 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4556 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4557 'x', 'y', 'z', 91, 92, 93, 94, 95,
4558 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4559 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4560 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4561 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4562 128, 129, 130, 131, 132, 133, 134, 135,
4563 136, 137, 138, 139, 140, 141, 142, 143,
4564 144, 145, 146, 147, 148, 149, 150, 151,
4565 152, 153, 154, 155, 156, 157, 158, 159,
4566 160, 161, 162, 163, 164, 165, 166, 167,
4567 168, 169, 170, 171, 172, 173, 174, 175,
4568 176, 177, 178, 179, 180, 181, 182, 183,
4569 184, 185, 186, 187, 188, 189, 190, 191,
4570 192, 193, 194, 195, 196, 197, 198, 199,
4571 200, 201, 202, 203, 204, 205, 206, 207,
4572 208, 209, 210, 211, 212, 213, 214, 215,
4573 216, 217, 218, 219, 220, 221, 222, 223,
4574 224, 225, 226, 227, 228, 229, 230, 231,
4575 232, 233, 234, 235, 236, 237, 238, 239,
4576 240, 241, 242, 243, 244, 245, 246, 247,
4577 248, 249, 250, 251, 252, 253, 254, 255
4580 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
4582 #endif /* !PERL_GLOBAL_STRUCT */
4586 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
4587 1, 2, 84, 151, 154, 155, 156, 157,
4588 165, 246, 250, 3, 158, 7, 18, 29,
4589 40, 51, 62, 73, 85, 96, 107, 118,
4590 129, 140, 147, 148, 149, 150, 152, 153,
4591 255, 6, 8, 9, 10, 11, 12, 13,
4592 14, 15, 24, 25, 26, 27, 28, 226,
4593 29, 30, 31, 32, 33, 43, 44, 45,
4594 46, 47, 48, 49, 50, 76, 77, 78,
4595 79, 80, 81, 82, 83, 84, 85, 86,
4596 87, 94, 95, 234, 181, 233, 187, 190,
4597 180, 96, 97, 98, 99, 100, 101, 102,
4598 104, 112, 182, 174, 236, 232, 229, 103,
4599 228, 226, 114, 115, 116, 117, 118, 119,
4600 120, 121, 122, 235, 176, 230, 194, 162,
4601 130, 131, 132, 133, 134, 135, 136, 137,
4602 138, 139, 201, 205, 163, 217, 220, 224,
4603 5, 248, 227, 244, 242, 255, 241, 231,
4604 240, 253, 16, 197, 19, 20, 21, 187,
4605 23, 169, 210, 245, 237, 249, 247, 239,
4606 168, 252, 34, 196, 36, 37, 38, 39,
4607 41, 42, 251, 254, 238, 223, 221, 213,
4608 225, 177, 52, 53, 54, 55, 56, 57,
4609 58, 59, 60, 61, 63, 64, 65, 66,
4610 67, 68, 69, 70, 71, 72, 74, 75,
4611 205, 208, 186, 202, 200, 218, 198, 179,
4612 178, 214, 88, 89, 90, 91, 92, 93,
4613 217, 166, 170, 207, 199, 209, 206, 204,
4614 160, 212, 105, 106, 108, 109, 110, 111,
4615 203, 113, 216, 215, 192, 175, 193, 243,
4616 172, 161, 123, 124, 125, 126, 127, 128,
4617 222, 219, 211, 195, 188, 193, 185, 184,
4618 191, 183, 141, 142, 143, 144, 145, 146
4620 #else /* ascii rather than ebcdic */
4621 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
4622 1, 2, 84, 151, 154, 155, 156, 157,
4623 165, 246, 250, 3, 158, 7, 18, 29,
4624 40, 51, 62, 73, 85, 96, 107, 118,
4625 129, 140, 147, 148, 149, 150, 152, 153,
4626 255, 182, 224, 205, 174, 176, 180, 217,
4627 233, 232, 236, 187, 235, 228, 234, 226,
4628 222, 219, 211, 195, 188, 193, 185, 184,
4629 191, 183, 201, 229, 181, 220, 194, 162,
4630 163, 208, 186, 202, 200, 218, 198, 179,
4631 178, 214, 166, 170, 207, 199, 209, 206,
4632 204, 160, 212, 216, 215, 192, 175, 173,
4633 243, 172, 161, 190, 203, 189, 164, 230,
4634 167, 248, 227, 244, 242, 255, 241, 231,
4635 240, 253, 169, 210, 245, 237, 249, 247,
4636 239, 168, 252, 251, 254, 238, 223, 221,
4637 213, 225, 177, 197, 171, 196, 159, 4,
4638 5, 6, 8, 9, 10, 11, 12, 13,
4639 14, 15, 16, 17, 19, 20, 21, 22,
4640 23, 24, 25, 26, 27, 28, 30, 31,
4641 32, 33, 34, 35, 36, 37, 38, 39,
4642 41, 42, 43, 44, 45, 46, 47, 48,
4643 49, 50, 52, 53, 54, 55, 56, 57,
4644 58, 59, 60, 61, 63, 64, 65, 66,
4645 67, 68, 69, 70, 71, 72, 74, 75,
4646 76, 77, 78, 79, 80, 81, 82, 83,
4647 86, 87, 88, 89, 90, 91, 92, 93,
4648 94, 95, 97, 98, 99, 100, 101, 102,
4649 103, 104, 105, 106, 108, 109, 110, 111,
4650 112, 113, 114, 115, 116, 117, 119, 120,
4651 121, 122, 123, 124, 125, 126, 127, 128,
4652 130, 131, 132, 133, 134, 135, 136, 137,
4653 138, 139, 141, 142, 143, 144, 145, 146
4657 EXTCONST unsigned char PL_freq[];
4660 /* Although only used for debugging, these constants must be available in
4661 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4662 * which has DEBUGGING enabled always */
4664 EXTCONST char* const PL_block_type[] = {
4680 EXTCONST char* PL_block_type[];
4683 /* These are all the compile time options that affect binary compatibility.
4684 Other compile time options that are binary compatible are in perl.c
4685 (in S_Internals_V()). Both are combined for the output of perl -V
4686 However, this string will be embedded in any shared perl library, which will
4687 allow us add a comparison check in perlmain.c in the near future. */
4689 EXTCONST char PL_bincompat_options[] =
4690 # ifdef DEBUG_LEAKING_SCALARS
4691 " DEBUG_LEAKING_SCALARS"
4693 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4694 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4702 # ifdef HAVE_INTERP_INTERN
4703 " HAVE_INTERP_INTERN"
4705 # ifdef MULTIPLICITY
4711 # ifdef PERLIO_LAYERS
4714 # ifdef PERL_DEBUG_READONLY_COW
4715 " PERL_DEBUG_READONLY_COW"
4717 # ifdef PERL_DEBUG_READONLY_OPS
4718 " PERL_DEBUG_READONLY_OPS"
4720 # ifdef PERL_GLOBAL_STRUCT
4721 " PERL_GLOBAL_STRUCT"
4723 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
4724 " PERL_GLOBAL_STRUCT_PRIVATE"
4726 # ifdef PERL_IMPLICIT_CONTEXT
4727 " PERL_IMPLICIT_CONTEXT"
4729 # ifdef PERL_IMPLICIT_SYS
4730 " PERL_IMPLICIT_SYS"
4735 # ifdef PERL_NEED_APPCTX
4738 # ifdef PERL_NEED_TIMESBASE
4739 " PERL_NEED_TIMESBASE"
4744 # ifdef PERL_SAWAMPERSAND
4745 " PERL_SAWAMPERSAND"
4747 # ifdef PERL_TRACK_MEMPOOL
4748 " PERL_TRACK_MEMPOOL"
4750 # ifdef PERL_USES_PL_PIDSTATUS
4751 " PERL_USES_PL_PIDSTATUS"
4753 # ifdef USE_64_BIT_ALL
4756 # ifdef USE_64_BIT_INT
4762 # ifdef USE_ITHREADS
4765 # ifdef USE_LARGE_FILES
4768 # ifdef USE_LOCALE_COLLATE
4769 " USE_LOCALE_COLLATE"
4771 # ifdef USE_LOCALE_NUMERIC
4772 " USE_LOCALE_NUMERIC"
4774 # ifdef USE_LOCALE_TIME
4777 # ifdef USE_LONG_DOUBLE
4783 # ifdef USE_QUADMATH
4786 # ifdef USE_REENTRANT_API
4787 " USE_REENTRANT_API"
4792 # ifdef VMS_DO_SOCKETS
4795 # ifdef VMS_SHORTEN_LONG_SYMBOLS
4796 " VMS_SHORTEN_LONG_SYMBOLS"
4798 # ifdef VMS_WE_ARE_CASE_SENSITIVE
4799 " VMS_SYMBOL_CASE_AS_IS"
4803 EXTCONST char PL_bincompat_options[];
4806 #ifndef PERL_SET_PHASE
4807 # define PERL_SET_PHASE(new_phase) \
4808 PERL_DTRACE_PROBE_PHASE(new_phase); \
4809 PL_phase = new_phase;
4812 /* The interpreter phases. If these ever change, PL_phase_names right below will
4813 * need to be updated accordingly. */
4815 PERL_PHASE_CONSTRUCT = 0,
4816 PERL_PHASE_START = 1,
4817 PERL_PHASE_CHECK = 2,
4818 PERL_PHASE_INIT = 3,
4821 PERL_PHASE_DESTRUCT = 6
4825 EXTCONST char *const PL_phase_names[] = {
4835 EXTCONST char *const PL_phase_names[];
4839 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
4840 * instead of using the newer PL_phase, which provides everything PL_dirty
4841 * provided, and more. */
4842 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
4844 # define PL_amagic_generation PL_na
4845 # define PL_encoding ((SV *)NULL)
4846 #endif /* !PERL_CORE */
4848 #define PL_hints PL_compiling.cop_hints
4849 #define PL_maxo MAXO
4853 /*****************************************************************************/
4854 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
4855 /*****************************************************************************/
4856 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
4859 /* LynxOS defines these in scsi.h which is included via ioctl.h */
4868 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
4881 XTERMORDORDOR /* evil hack */
4882 /* update exp_name[] in toke.c if adding to this enum */
4885 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
4887 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
4888 special and there is no need for HINT_PRIVATE_MASK for COPs
4889 However, bitops store HINT_INTEGER in their op_private.
4891 NOTE: The typical module using these has the bit value hard-coded, so don't
4892 blindly change the values of these.
4894 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
4895 is for "use locale 'FOO'" which excludes some categories. It requires going
4896 to %^H to find out which are in and which are out. This could be extended
4897 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
4899 #define HINT_INTEGER 0x00000001 /* integer pragma */
4900 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
4901 #define HINT_LOCALE 0x00000004 /* locale pragma */
4902 #define HINT_BYTES 0x00000008 /* bytes pragma */
4903 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
4905 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
4906 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
4907 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
4909 #define HINT_BLOCK_SCOPE 0x00000100
4910 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
4911 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
4912 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
4914 /* The HINT_NEW_* constants are used by the overload pragma */
4915 #define HINT_NEW_INTEGER 0x00001000
4916 #define HINT_NEW_FLOAT 0x00002000
4917 #define HINT_NEW_BINARY 0x00004000
4918 #define HINT_NEW_STRING 0x00008000
4919 #define HINT_NEW_RE 0x00010000
4920 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
4921 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
4922 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
4924 #define HINT_RE_TAINT 0x00100000 /* re pragma */
4925 #define HINT_RE_EVAL 0x00200000 /* re pragma */
4927 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
4928 #define HINT_UTF8 0x00800000 /* utf8 pragma */
4930 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
4932 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
4934 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
4936 /* Note: Used for HINT_M_VMSISH_*,
4937 currently defined by vms/vmsish.h:
4942 /* The following are stored in $^H{sort}, not in PL_hints */
4943 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
4944 #define HINT_SORT_UNSTABLE 0x00000200
4946 /* flags for PL_sawampersand */
4948 #define SAWAMPERSAND_LEFT 1 /* saw $` */
4949 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
4950 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
4952 #ifndef PERL_SAWAMPERSAND
4953 # define PL_sawampersand \
4954 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
4957 /* Used for debugvar magic */
4958 #define DBVARMG_SINGLE 0
4959 #define DBVARMG_TRACE 1
4960 #define DBVARMG_SIGNAL 2
4961 #define DBVARMG_COUNT 3
4963 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
4964 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
4965 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
4967 /* Various states of the input record separator SV (rs) */
4968 #define RsSNARF(sv) (! SvOK(sv))
4969 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
4970 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
4971 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
4973 /* A struct for keeping various DEBUGGING related stuff,
4974 * neatly packed. Currently only scratch variables for
4975 * constructing debug output are included. Needed always,
4976 * not just when DEBUGGING, though, because of the re extension. c*/
4977 struct perl_debug_pad {
4981 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
4982 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
4983 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
4986 /* Enable variables which are pointers to functions */
4987 typedef void (*peep_t)(pTHX_ OP* o);
4988 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
4989 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
4990 char* strend, char* strbeg, I32 minend,
4991 SV* screamer, void* data, U32 flags);
4992 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
4993 char *strpos, char *strend,
4995 re_scream_pos_data *d);
4996 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
4997 typedef void (*regfree_t) (pTHX_ struct regexp* r);
4998 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
4999 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5001 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5002 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5003 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5004 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5005 typedef void (*XSINIT_t) (pTHX);
5006 typedef void (*ATEXIT_t) (pTHX_ void*);
5007 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5009 typedef OP* (*Perl_ppaddr_t)(pTHX);
5010 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5011 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5012 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5013 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5015 typedef void(*globhook_t)(pTHX);
5017 #define KEYWORD_PLUGIN_DECLINE 0
5018 #define KEYWORD_PLUGIN_STMT 1
5019 #define KEYWORD_PLUGIN_EXPR 2
5021 /* Interpreter exitlist entry */
5022 typedef struct exitlistentry {
5023 void (*fn) (pTHX_ void*);
5025 } PerlExitListEntry;
5027 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5028 /* These have to be before perlvars.h */
5029 #if !defined(HAS_SIGACTION) && defined(VMS)
5030 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5032 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5033 #if defined(KILL_BY_SIGPRC)
5034 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5037 #if !defined(MULTIPLICITY)
5039 struct interpreter {
5045 /* If we have multiple interpreters define a struct
5046 holding variables which must be per-interpreter
5047 If we don't have threads anything that would have
5048 be per-thread is per-interpreter.
5051 /* Set up PERLVAR macros for populating structs */
5052 # define PERLVAR(prefix,var,type) type prefix##var;
5054 /* 'var' is an array of length 'n' */
5055 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5057 /* initialize 'var' to init' */
5058 # define PERLVARI(prefix,var,type,init) type prefix##var;
5060 /* like PERLVARI, but make 'var' a const */
5061 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5063 struct interpreter {
5064 # include "intrpvar.h"
5067 EXTCONST U16 PL_interp_size
5068 INIT(sizeof(struct interpreter));
5070 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5071 STRUCT_OFFSET(struct interpreter, member) + \
5072 sizeof(((struct interpreter*)0)->member)
5074 /* This will be useful for subsequent releases, because this has to be the
5075 same in your libperl as in main(), else you have a mismatch and must abort.
5077 EXTCONST U16 PL_interp_size_5_18_0
5078 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5081 # ifdef PERL_GLOBAL_STRUCT
5082 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5083 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5086 # include "perlvars.h"
5089 EXTCONST U16 PL_global_struct_size
5090 INIT(sizeof(struct perl_vars));
5093 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5094 EXT struct perl_vars PL_Vars;
5095 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5096 # undef PERL_GET_VARS
5097 # define PERL_GET_VARS() PL_VarsPtr
5098 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5099 # else /* PERL_CORE */
5100 # if !defined(__GNUC__) || !defined(WIN32)
5103 struct perl_vars *PL_VarsPtr;
5104 # define PL_Vars (*((PL_VarsPtr) \
5105 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5106 # endif /* PERL_CORE */
5107 # endif /* PERL_GLOBAL_STRUCT */
5109 /* Done with PERLVAR macros for now ... */
5115 #endif /* MULTIPLICITY */
5117 struct tempsym; /* defined in pp_pack.c */
5124 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5125 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5128 # include "malloc_ctl.h"
5132 * This provides a layer of functions and macros to ensure extensions will
5133 * get to use the same RTL functions as the core.
5136 # include "win32iop.h"
5142 /* this has structure inits, so it cannot be included before here */
5145 /* The following must follow proto.h as #defines mess up syntax */
5147 #if !defined(PERL_FOR_X2P)
5148 # include "embedvar.h"
5151 /* Now include all the 'global' variables
5152 * If we don't have threads or multiple interpreters
5153 * these include variables that would have been their struct-s
5156 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5157 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5158 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5159 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5161 #if !defined(MULTIPLICITY)
5163 # include "intrpvar.h"
5165 # define PL_sv_yes (PL_sv_immortals[0])
5166 # define PL_sv_undef (PL_sv_immortals[1])
5167 # define PL_sv_no (PL_sv_immortals[2])
5168 # define PL_sv_zero (PL_sv_immortals[3])
5172 /* All core uses now exterminated. Ensure no zombies can return: */
5176 /* Now all the config stuff is setup we can include embed.h
5177 In particular, need the relevant *ish file included already, as it may
5178 define HAVE_INTERP_INTERN */
5181 #ifndef PERL_GLOBAL_STRUCT
5184 # include "perlvars.h"
5194 #if !defined(MULTIPLICITY)
5195 /* Set up PERLVAR macros for populating structs */
5196 # define PERLVAR(prefix,var,type) type prefix##var;
5197 /* 'var' is an array of length 'n' */
5198 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5199 /* initialize 'var' to init' */
5200 # define PERLVARI(prefix,var,type,init) type prefix##var;
5201 /* like PERLVARI, but make 'var' a const */
5202 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5204 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5205 struct PerlHandShakeInterpreter {
5206 # include "intrpvar.h"
5216 /* dummy variables that hold pointers to both runops functions, thus forcing
5217 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5219 EXTCONST runops_proc_t PL_runops_std
5220 INIT(Perl_runops_standard);
5221 EXTCONST runops_proc_t PL_runops_dbg
5222 INIT(Perl_runops_debug);
5224 #define EXT_MGVTBL EXTCONST MGVTBL
5226 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5227 #define PERL_MAGIC_VALUE_MAGIC 0x80
5228 #define PERL_MAGIC_VTABLE_MASK 0x3F
5229 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5230 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5231 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5232 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5234 #include "mg_vtable.h"
5237 EXTCONST U8 PL_magic_data[256] =
5239 # include "umg_data.h"
5241 # include "mg_data.h"
5245 EXTCONST U8 PL_magic_data[256];
5249 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5251 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5253 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5255 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5257 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5259 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5261 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5265 EXTCONST bool PL_valid_types_IVX[];
5266 EXTCONST bool PL_valid_types_NVX[];
5267 EXTCONST bool PL_valid_types_PVX[];
5268 EXTCONST bool PL_valid_types_RV[];
5269 EXTCONST bool PL_valid_types_IV_set[];
5270 EXTCONST bool PL_valid_types_NV_set[];
5274 /* In C99 we could use designated (named field) union initializers.
5275 * In C89 we need to initialize the member declared first.
5276 * In C++ we need extern C initializers.
5278 * With the U8_NV version you will want to have inner braces,
5279 * while with the NV_U8 use just the NV. */
5282 #define INFNAN_U8_NV_DECL EXTERN_C const union { U8 u8[NVSIZE]; NV nv; }
5283 #define INFNAN_NV_U8_DECL EXTERN_C const union { NV nv; U8 u8[NVSIZE]; }
5285 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5286 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5289 /* if these never got defined, they need defaults */
5290 #ifndef PERL_SET_CONTEXT
5291 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5294 #ifndef PERL_GET_CONTEXT
5295 # define PERL_GET_CONTEXT PERL_GET_INTERP
5298 #ifndef PERL_GET_THX
5299 # define PERL_GET_THX ((void*)NULL)
5302 #ifndef PERL_SET_THX
5303 # define PERL_SET_THX(t) NOOP
5307 #ifndef PERL_NO_INLINE_FUNCTIONS
5308 /* Static inline funcs that depend on includes and declarations above.
5309 Some of these reference functions in the perl object files, and some
5310 compilers aren't smart enough to eliminate unused static inline
5311 functions, so including this file in source code can cause link errors
5312 even if the source code uses none of the functions. Hence including these
5313 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5314 (obviously) result in unworkable XS code, but allows simple probing code
5315 to continue to work, because it permits tests to include the perl headers
5316 for definitions without creating a link dependency on the perl library
5317 (which may not exist yet).
5320 # include "inline.h"
5323 #include "overload.h"
5332 CV* table[NofAMmeth];
5334 struct am_table_short {
5340 typedef struct am_table AMT;
5341 typedef struct am_table_short AMTS;
5343 #define AMGfallNEVER 1
5345 #define AMGfallYES 3
5347 #define AMTf_AMAGIC 1
5348 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5349 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5350 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5352 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
5355 * some compilers like to redefine cos et alia as faster
5356 * (and less accurate?) versions called F_cos et cetera (Quidquid
5357 * latine dictum sit, altum viditur.) This trick collides with
5358 * the Perl overloading (amg). The following #defines fool both.
5363 # define F_atan2_amg atan2_amg
5366 # define F_cos_amg cos_amg
5369 # define F_exp_amg exp_amg
5372 # define F_log_amg log_amg
5375 # define F_pow_amg pow_amg
5378 # define F_sin_amg sin_amg
5381 # define F_sqrt_amg sqrt_amg
5383 #endif /* _FASTMATH */
5385 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
5386 PERLDBf_NOOPT | PERLDBf_INTER | \
5387 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
5388 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
5390 /* No _NONAME, _GOTO */
5391 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
5392 #define PERLDBf_LINE 0x02 /* Keep line # */
5393 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
5394 #define PERLDBf_INTER 0x08 /* Preserve more data for
5395 later inspections */
5396 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
5397 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
5398 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
5399 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
5400 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
5401 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
5402 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
5403 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
5404 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
5406 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
5407 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
5408 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
5409 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
5410 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
5411 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
5412 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
5413 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
5414 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
5415 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
5416 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
5417 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
5418 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
5420 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
5423 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
5424 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
5425 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
5426 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
5428 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
5429 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
5430 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
5431 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
5435 /* These locale things are all subject to change */
5438 # if defined(HAS_NEWLOCALE) \
5439 && defined(LC_ALL_MASK) \
5440 && defined(HAS_FREELOCALE) \
5441 && defined(HAS_USELOCALE) \
5442 && ! defined(NO_POSIX_2008_LOCALE)
5444 /* The code is written for simplicity to assume that any platform advanced
5445 * enough to have the Posix 2008 locale functions has LC_ALL. The test
5446 * above makes sure that assumption is valid */
5448 # define HAS_POSIX_2008_LOCALE
5451 /* We create a C locale object unconditionally if we have the functions to do
5452 * so; hence must destroy it unconditionally at the end */
5453 # ifndef HAS_POSIX_2008_LOCALE
5454 # define _LOCALE_TERM_POSIX_2008 NOOP
5456 # define _LOCALE_TERM_POSIX_2008 \
5458 if (PL_C_locale_obj) { \
5459 /* Make sure we aren't using the locale \
5460 * space we are about to free */ \
5461 uselocale(LC_GLOBAL_LOCALE); \
5462 freelocale(PL_C_locale_obj); \
5463 PL_C_locale_obj = (locale_t) NULL; \
5468 # ifndef USE_ITHREADS
5469 # define LOCALE_INIT
5470 # define LOCALE_LOCK
5471 # define LOCALE_UNLOCK
5472 # define LOCALE_TERM STMT_START { _LOCALE_TERM_POSIX_2008; } STMT_END
5473 # else /* Below is do use threads */
5474 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex)
5475 # define LOCALE_LOCK MUTEX_LOCK(&PL_locale_mutex)
5476 # define LOCALE_UNLOCK MUTEX_UNLOCK(&PL_locale_mutex)
5477 # define LOCALE_TERM \
5479 MUTEX_DESTROY(&PL_locale_mutex); \
5480 _LOCALE_TERM_POSIX_2008; \
5482 # ifdef HAS_POSIX_2008_LOCALE
5483 # define USE_POSIX_2008_LOCALE
5484 # define USE_THREAD_SAFE_LOCALE
5488 /* Returns TRUE if the plain locale pragma without a parameter is in effect
5490 # define IN_LOCALE_RUNTIME (PL_curcop \
5491 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
5493 /* Returns TRUE if either form of the locale pragma is in effect */
5494 # define IN_SOME_LOCALE_FORM_RUNTIME \
5495 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
5497 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
5498 # define IN_SOME_LOCALE_FORM_COMPILETIME \
5499 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
5501 # define IN_LOCALE \
5502 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
5503 # define IN_SOME_LOCALE_FORM \
5504 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
5505 : IN_SOME_LOCALE_FORM_RUNTIME)
5507 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
5508 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
5510 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
5511 # define IN_LC_PARTIAL_RUNTIME \
5512 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
5514 # define IN_LC_COMPILETIME(category) \
5515 (IN_LC_ALL_COMPILETIME || (IN_LC_PARTIAL_COMPILETIME \
5516 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
5517 # define IN_LC_RUNTIME(category) \
5518 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
5519 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
5520 # define IN_LC(category) \
5521 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
5523 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
5525 /* This internal macro should be called from places that operate under
5526 * locale rules. It there is a problem with the current locale that
5527 * hasn't been raised yet, it will output a warning this time. Because
5528 * this will so rarely be true, there is no point to optimize for
5529 * time; instead it makes sense to minimize space used and do all the
5530 * work in the rarely called function */
5531 # ifdef USE_LOCALE_CTYPE
5532 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
5534 if (UNLIKELY(PL_warn_locale)) { \
5535 Perl__warn_problematic_locale(); \
5539 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5543 /* These two internal macros are called when a warning should be raised,
5544 * and will do so if enabled. The first takes a single code point
5545 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
5546 * string, and an end position which it won't try to read past */
5547 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
5549 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5550 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5551 "Wide character (U+%" UVXf ") in %s",\
5552 (UV) cp, OP_DESC(PL_op)); \
5556 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
5557 STMT_START { /* Check if to warn before doing the conversion work */\
5558 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5559 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \
5560 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5561 "Wide character (U+%" UVXf ") in %s", \
5563 ? UNICODE_REPLACEMENT \
5569 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
5570 #else /* No locale usage */
5571 # define LOCALE_INIT
5572 # define LOCALE_TERM
5573 # define LOCALE_LOCK
5574 # define LOCALE_UNLOCK
5575 # define IN_LOCALE_RUNTIME 0
5576 # define IN_SOME_LOCALE_FORM_RUNTIME 0
5577 # define IN_LOCALE_COMPILETIME 0
5578 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
5579 # define IN_LOCALE 0
5580 # define IN_SOME_LOCALE_FORM 0
5581 # define IN_LC_ALL_COMPILETIME 0
5582 # define IN_LC_ALL_RUNTIME 0
5583 # define IN_LC_PARTIAL_COMPILETIME 0
5584 # define IN_LC_PARTIAL_RUNTIME 0
5585 # define IN_LC_COMPILETIME(category) 0
5586 # define IN_LC_RUNTIME(category) 0
5587 # define IN_LC(category) 0
5589 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5590 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(a)
5591 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(a,b)
5594 #ifdef USE_LOCALE_NUMERIC
5596 /* These macros are for toggling between the underlying locale (UNDERLYING or
5597 * LOCAL) and the C locale (STANDARD).
5599 =head1 Locale-related functions and macros
5601 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5603 This macro should be used as a statement. It declares a private variable
5604 (whose name begins with an underscore) that is needed by the other macros in
5605 this section. Failing to include this correctly should lead to a syntax error.
5606 For compatibility with C89 C compilers it should be placed in a block before
5607 any executable statements.
5609 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
5611 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
5612 locale for category C<LC_NUMERIC> to be what perl thinks is the current
5613 underlying locale. (The perl interpreter could be wrong about what the
5614 underlying locale actually is if some C or XS code has called the C library
5615 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
5616 this macro will update perl's records.)
5618 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5619 declare at compile time a private variable used by this macro. This macro
5620 should be called as a single statement, not an expression, but with an empty
5621 argument list, like this:
5624 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5626 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
5628 RESTORE_LC_NUMERIC();
5632 The private variable is used to save the current locale state, so
5633 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
5635 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
5637 This is used to help wrap XS or C code that that is C<LC_NUMERIC> locale-aware.
5638 This locale category is generally kept set to the C locale by Perl for
5639 backwards compatibility, and because most XS code that reads floating point
5640 values can cope only with the decimal radix character being a dot.
5642 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
5643 aware of locale if the call to the XS or C code from the Perl program is
5644 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
5645 instead from outside such scope.
5647 This macro is the start of wrapping the C or XS code; the wrap ending is done
5648 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
5649 the state can be changed that will adversely affect other XS code.
5651 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5652 declare at compile time a private variable used by this macro. This macro
5653 should be called as a single statement, not an expression, but with an empty
5654 argument list, like this:
5657 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5659 STORE_LC_NUMERIC_SET_TO_NEEDED();
5661 RESTORE_LC_NUMERIC();
5665 =for apidoc Am|void|RESTORE_LC_NUMERIC
5667 This is used in conjunction with one of the macros
5668 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
5670 L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING>
5672 to properly restore the C<LC_NUMERIC> state.
5674 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5675 declare at compile time a private variable used by this macro and the two
5676 C<STORE> ones. This macro should be called as a single statement, not an
5677 expression, but with an empty argument list, like this:
5680 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5682 RESTORE_LC_NUMERIC();
5690 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
5692 /* We can lock the category to stay in the C locale, making requests to the
5693 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
5695 # define _NOT_IN_NUMERIC_UNDERLYING \
5696 (! PL_numeric_underlying && PL_numeric_standard < 2)
5698 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
5699 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
5701 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
5702 if (IN_LC(LC_NUMERIC)) { \
5703 if (_NOT_IN_NUMERIC_UNDERLYING) { \
5704 Perl_set_numeric_underlying(aTHX); \
5705 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5709 if (_NOT_IN_NUMERIC_STANDARD) { \
5710 SET_NUMERIC_STANDARD(); \
5711 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying; \
5715 # define RESTORE_LC_NUMERIC() \
5716 if (_restore_LC_NUMERIC_function) { \
5717 _restore_LC_NUMERIC_function(aTHX); \
5720 /* The next two macros set unconditionally. These should be rarely used, and
5721 * only after being sure that this is what is needed */
5722 # define SET_NUMERIC_STANDARD() \
5723 STMT_START { if (_NOT_IN_NUMERIC_STANDARD) \
5724 Perl_set_numeric_standard(aTHX); \
5727 # define SET_NUMERIC_UNDERLYING() \
5728 STMT_START { if (_NOT_IN_NUMERIC_UNDERLYING) \
5729 Perl_set_numeric_underlying(aTHX); } STMT_END
5731 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
5732 * the RESTORE_foo ones called to switch back, but only if need be */
5733 # define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD() \
5734 bool _was_underlying = _NOT_IN_NUMERIC_STANDARD; \
5735 if (_was_underlying) Perl_set_numeric_standard(aTHX);
5737 /* Doesn't change to underlying locale unless within the scope of some form of
5738 * 'use locale'. This is the usual desired behavior. */
5739 # define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING() \
5740 bool _was_standard = _NOT_IN_NUMERIC_UNDERLYING \
5741 && IN_LC(LC_NUMERIC); \
5742 if (_was_standard) Perl_set_numeric_underlying(aTHX);
5744 /* Rarely, we want to change to the underlying locale even outside of 'use
5745 * locale'. This is principally in the POSIX:: functions */
5746 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
5747 if (_NOT_IN_NUMERIC_UNDERLYING) { \
5748 Perl_set_numeric_underlying(aTHX); \
5749 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5752 /* Lock/unlock to the C locale until unlock is called. This needs to be
5753 * recursively callable. [perl #128207] */
5754 # define LOCK_LC_NUMERIC_STANDARD() \
5755 (__ASSERT_(PL_numeric_standard) \
5756 PL_numeric_standard++)
5757 # define UNLOCK_LC_NUMERIC_STANDARD() \
5759 if (PL_numeric_standard > 1) { \
5760 PL_numeric_standard--; \
5767 # define RESTORE_LC_NUMERIC_UNDERLYING() \
5768 if (_was_underlying) Perl_set_numeric_underlying(aTHX);
5770 # define RESTORE_LC_NUMERIC_STANDARD() \
5771 if (_restore_LC_NUMERIC_function) { \
5772 _restore_LC_NUMERIC_function(aTHX); \
5775 #else /* !USE_LOCALE_NUMERIC */
5777 # define SET_NUMERIC_STANDARD()
5778 # define SET_NUMERIC_UNDERLYING()
5779 # define IS_NUMERIC_RADIX(a, b) (0)
5780 # define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5781 # define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5782 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5783 # define RESTORE_LC_NUMERIC_UNDERLYING()
5784 # define RESTORE_LC_NUMERIC_STANDARD()
5785 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5786 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
5787 # define RESTORE_LC_NUMERIC()
5788 # define LOCK_LC_NUMERIC_STANDARD()
5789 # define UNLOCK_LC_NUMERIC_STANDARD()
5791 #endif /* !USE_LOCALE_NUMERIC */
5793 #define Atof my_atof
5795 /* Back-compat names */
5796 #define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED \
5797 DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5798 #define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED() \
5799 DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED; \
5800 STORE_LC_NUMERIC_SET_TO_NEEDED();
5801 #define LOCK_NUMERIC_STANDARD() LOCK_LC_NUMERIC_STANDARD()
5802 #define RESTORE_NUMERIC_LOCAL() RESTORE_LC_NUMERIC_UNDERLYING()
5803 #define RESTORE_NUMERIC_STANDARD() RESTORE_LC_NUMERIC_STANDARD()
5804 #define SET_NUMERIC_LOCAL() SET_NUMERIC_UNDERLYING()
5805 #define STORE_NUMERIC_LOCAL_SET_STANDARD() \
5806 STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5807 #define STORE_NUMERIC_STANDARD_SET_LOCAL() \
5808 STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5809 #define STORE_NUMERIC_STANDARD_FORCE_LOCAL() \
5810 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5811 #define UNLOCK_NUMERIC_STANDARD() UNLOCK_LC_NUMERIC_STANDARD()
5816 # define Perl_strtod(s, e) strtoflt128(s, e)
5817 #elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
5818 # if defined(HAS_STRTOLD)
5819 # define Perl_strtod(s, e) strtold(s, e)
5820 # elif defined(HAS_STRTOD)
5821 # define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */
5823 #elif defined(HAS_STRTOD)
5824 # define Perl_strtod(s, e) strtod(s, e)
5827 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
5828 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5830 # define strtoll __strtoll /* secret handshake */
5832 # if defined(WIN64) && defined(_MSC_VER)
5833 # define strtoll _strtoi64 /* secret handshake */
5835 # if !defined(Strtol) && defined(HAS_STRTOLL)
5836 # define Strtol strtoll
5838 # if !defined(Strtol) && defined(HAS_STRTOQ)
5839 # define Strtol strtoq
5841 /* is there atoq() anywhere? */
5843 #if !defined(Strtol) && defined(HAS_STRTOL)
5844 # define Strtol strtol
5847 /* It would be more fashionable to use Strtol() to define atol()
5848 * (as is done for Atoul(), see below) but for backward compatibility
5849 * we just assume atol(). */
5850 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
5851 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5853 # define atoll _atoi64 /* secret handshake */
5861 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
5862 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5864 # define strtoull __strtoull /* secret handshake */
5866 # if defined(WIN64) && defined(_MSC_VER)
5867 # define strtoull _strtoui64 /* secret handshake */
5869 # if !defined(Strtoul) && defined(HAS_STRTOULL)
5870 # define Strtoul strtoull
5872 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
5873 # define Strtoul strtouq
5875 /* is there atouq() anywhere? */
5877 #if !defined(Strtoul) && defined(HAS_STRTOUL)
5878 # define Strtoul strtoul
5880 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
5881 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
5884 # define Atoul(s) Strtoul(s, NULL, 10)
5887 #ifndef PERL_SCRIPT_MODE
5888 #define PERL_SCRIPT_MODE "r"
5891 /* not used. Kept as a NOOP for backcompat */
5892 #define PERL_STACK_OVERFLOW_CHECK() NOOP
5895 * Some nonpreemptive operating systems find it convenient to
5896 * check for asynchronous conditions after each op execution.
5897 * Keep this check simple, or it may slow down execution
5902 # ifndef PERL_ASYNC_CHECK
5903 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
5907 #ifndef PERL_ASYNC_CHECK
5908 # define PERL_ASYNC_CHECK() NOOP
5912 * On some operating systems, a memory allocation may succeed,
5913 * but put the process too close to the system's comfort limit.
5914 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
5917 #ifndef PERL_ALLOC_CHECK
5918 #define PERL_ALLOC_CHECK(p) NOOP
5922 # include <sys/ipc.h>
5923 # include <sys/sem.h>
5924 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
5927 struct semid_ds *buf;
5928 unsigned short *array;
5931 # ifdef USE_SEMCTL_SEMUN
5932 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
5933 union gccbug_semun {
5935 struct semid_ds *buf;
5936 unsigned short *array;
5939 # define semun gccbug_semun
5941 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
5942 # elif defined(USE_SEMCTL_SEMID_DS)
5943 # ifdef EXTRA_F_IN_SEMUN_BUF
5944 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
5946 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
5952 * Boilerplate macros for initializing and accessing interpreter-local
5953 * data from C. All statics in extensions should be reworked to use
5954 * this, if you want to make the extension thread-safe. See
5955 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
5956 * and perlxs.pod for more.
5958 * Code that uses these macros is responsible for the following:
5959 * 1. #define MY_CXT_KEY to a unique string, e.g.
5960 * "DynaLoader::_guts" XS_VERSION
5961 * XXX in the current implementation, this string is ignored.
5962 * 2. Declare a typedef named my_cxt_t that is a structure that contains
5963 * all the data that needs to be interpreter-local.
5964 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
5965 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
5966 * (typically put in the BOOT: section).
5967 * 5. Use the members of the my_cxt_t structure everywhere as
5969 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
5973 #if defined(PERL_IMPLICIT_CONTEXT)
5975 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
5976 * right after the definition (i.e. at file scope). The non-threads
5977 * case below uses it to declare the data as static. */
5978 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
5979 # define START_MY_CXT
5980 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
5981 # define MY_CXT_INIT_ARG MY_CXT_KEY
5983 # define START_MY_CXT static int my_cxt_index = -1;
5984 # define MY_CXT_INDEX my_cxt_index
5985 # define MY_CXT_INIT_ARG &my_cxt_index
5986 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
5988 /* Creates and zeroes the per-interpreter data.
5989 * (We allocate my_cxtp in a Perl SV so that it will be released when
5990 * the interpreter goes away.) */
5991 # define MY_CXT_INIT \
5992 my_cxt_t *my_cxtp = \
5993 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5994 PERL_UNUSED_VAR(my_cxtp)
5995 # define MY_CXT_INIT_INTERP(my_perl) \
5996 my_cxt_t *my_cxtp = \
5997 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5998 PERL_UNUSED_VAR(my_cxtp)
6000 /* This declaration should be used within all functions that use the
6001 * interpreter-local data. */
6003 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
6004 # define dMY_CXT_INTERP(my_perl) \
6005 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6007 /* Clones the per-interpreter data. */
6008 # define MY_CXT_CLONE \
6009 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
6010 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
6011 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6012 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6016 /* This macro must be used to access members of the my_cxt_t structure.
6017 * e.g. MY_CXT.some_data */
6018 # define MY_CXT (*my_cxtp)
6020 /* Judicious use of these macros can reduce the number of times dMY_CXT
6021 * is used. Use is similar to pTHX, aTHX etc. */
6022 # define pMY_CXT my_cxt_t *my_cxtp
6023 # define pMY_CXT_ pMY_CXT,
6024 # define _pMY_CXT ,pMY_CXT
6025 # define aMY_CXT my_cxtp
6026 # define aMY_CXT_ aMY_CXT,
6027 # define _aMY_CXT ,aMY_CXT
6029 #else /* PERL_IMPLICIT_CONTEXT */
6031 # define START_MY_CXT static my_cxt_t my_cxt;
6032 # define dMY_CXT_SV dNOOP
6033 # define dMY_CXT dNOOP
6034 # define dMY_CXT_INTERP(my_perl) dNOOP
6035 # define MY_CXT_INIT NOOP
6036 # define MY_CXT_CLONE NOOP
6037 # define MY_CXT my_cxt
6039 # define pMY_CXT void
6046 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
6057 # undef FD_CLOEXEC /* a lie in AmigaOS */
6061 # include <sys/file.h>
6064 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
6065 int flock(int fd, int op);
6069 /* Assume UNIX defaults */
6070 # define O_RDONLY 0000
6071 # define O_WRONLY 0001
6072 # define O_RDWR 0002
6073 # define O_CREAT 0100
6084 #if O_TEXT != O_BINARY
6085 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6086 * that is, you are somehow DOSish. */
6087 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6088 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6089 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
6090 /* VOS has O_TEXT != O_BINARY, and they have effect,
6091 * but VOS always uses LF, never CRLF. */
6092 /* If you have O_TEXT different from your O_BINARY but you still are
6093 * not a CRLF shop. */
6094 # undef PERLIO_USING_CRLF
6096 /* If you really are DOSish. */
6097 # define PERLIO_USING_CRLF 1
6102 # include <libutil.h> /* setproctitle() in some FreeBSDs */
6105 #ifndef EXEC_ARGV_CAST
6106 #define EXEC_ARGV_CAST(x) (char **)x
6109 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6110 int). value returned in pointed-
6112 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
6113 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
6114 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
6115 #define IS_NUMBER_INFINITY 0x10 /* this is big */
6116 #define IS_NUMBER_NAN 0x20 /* this is not */
6117 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
6119 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6122 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
6123 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
6124 #define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
6125 #define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6126 numbers which are <= UV_MAX */
6127 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6128 and set IS_NUMBER_TRAILING */
6131 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6133 /* to let user control profiling */
6134 #ifdef PERL_GPROF_CONTROL
6135 extern void moncontrol(int);
6136 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6138 #define PERL_GPROF_MONCONTROL(x)
6145 /* ISO 6429 NEL - C1 control NExt Line */
6146 /* See http://www.unicode.org/unicode/reports/tr13/ */
6147 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
6149 #ifndef PIPESOCK_MODE
6150 # define PIPESOCK_MODE
6153 #ifndef SOCKET_OPEN_MODE
6154 # define SOCKET_OPEN_MODE PIPESOCK_MODE
6157 #ifndef PIPE_OPEN_MODE
6158 # define PIPE_OPEN_MODE PIPESOCK_MODE
6161 #define PERL_MAGIC_UTF8_CACHESIZE 2
6163 #define PERL_UNICODE_STDIN_FLAG 0x0001
6164 #define PERL_UNICODE_STDOUT_FLAG 0x0002
6165 #define PERL_UNICODE_STDERR_FLAG 0x0004
6166 #define PERL_UNICODE_IN_FLAG 0x0008
6167 #define PERL_UNICODE_OUT_FLAG 0x0010
6168 #define PERL_UNICODE_ARGV_FLAG 0x0020
6169 #define PERL_UNICODE_LOCALE_FLAG 0x0040
6170 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
6171 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
6173 #define PERL_UNICODE_STD_FLAG \
6174 (PERL_UNICODE_STDIN_FLAG | \
6175 PERL_UNICODE_STDOUT_FLAG | \
6176 PERL_UNICODE_STDERR_FLAG)
6178 #define PERL_UNICODE_INOUT_FLAG \
6179 (PERL_UNICODE_IN_FLAG | \
6180 PERL_UNICODE_OUT_FLAG)
6182 #define PERL_UNICODE_DEFAULT_FLAGS \
6183 (PERL_UNICODE_STD_FLAG | \
6184 PERL_UNICODE_INOUT_FLAG | \
6185 PERL_UNICODE_LOCALE_FLAG)
6187 #define PERL_UNICODE_ALL_FLAGS 0x01ff
6189 #define PERL_UNICODE_STDIN 'I'
6190 #define PERL_UNICODE_STDOUT 'O'
6191 #define PERL_UNICODE_STDERR 'E'
6192 #define PERL_UNICODE_STD 'S'
6193 #define PERL_UNICODE_IN 'i'
6194 #define PERL_UNICODE_OUT 'o'
6195 #define PERL_UNICODE_INOUT 'D'
6196 #define PERL_UNICODE_ARGV 'A'
6197 #define PERL_UNICODE_LOCALE 'L'
6198 #define PERL_UNICODE_WIDESYSCALLS 'W'
6199 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
6201 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6203 /* Use instead of abs() since abs() forces its argument to be an int,
6204 * but also beware since this evaluates its argument twice, so no x++. */
6205 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6207 #if defined(__DECC) && defined(__osf__)
6208 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
6211 #define do_open(g, n, l, a, rm, rp, sf) \
6212 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
6213 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
6214 # define do_exec(cmd) do_exec3(cmd,0,0)
6217 # define do_aexec Perl_do_aexec
6219 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
6222 /* check embedded \0 characters in pathnames passed to syscalls,
6223 but allow one ending \0 */
6224 #define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
6226 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
6228 #if defined(OEMVS) || defined(__amigaos4__)
6229 #define NO_ENV_ARRAY_IN_MAIN
6232 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
6233 * are here so that they are available throughout the core
6234 * NOTE that even though some are for _escape and some for _pretty
6235 * there must not be any clashes as the flags from _pretty are
6236 * passed straight through to _escape.
6239 #define PERL_PV_ESCAPE_QUOTE 0x000001
6240 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6242 #define PERL_PV_PRETTY_ELLIPSES 0x000002
6243 #define PERL_PV_PRETTY_LTGT 0x000004
6244 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
6246 #define PERL_PV_ESCAPE_UNI 0x000100
6247 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6248 #define PERL_PV_ESCAPE_NONASCII 0x000400
6249 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
6251 #define PERL_PV_ESCAPE_ALL 0x001000
6252 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6253 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
6254 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
6255 #define PERL_PV_ESCAPE_RE 0x008000
6257 #define PERL_PV_ESCAPE_DWIM 0x010000
6260 /* used by pv_display in dump.c*/
6261 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
6262 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
6264 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
6265 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
6266 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
6267 # define DOUBLE_IS_VAX_FLOAT
6269 # define DOUBLE_IS_IEEE_FORMAT
6272 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
6273 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
6274 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6275 # define DOUBLE_LITTLE_ENDIAN
6278 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
6279 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
6280 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6281 # define DOUBLE_BIG_ENDIAN
6284 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
6285 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6286 # define DOUBLE_MIX_ENDIAN
6289 /* The VAX fp formats are neither consistently little-endian nor
6290 * big-endian, and neither are they really IEEE-mixed endian like
6291 * the mixed-endian ARM IEEE formats (with swapped bytes).
6292 * Ultimately, the VAX format came from the PDP-11.
6294 * The ordering of the parts in VAX floats is quite vexing.
6295 * In the below the fraction_n are the mantissa bits.
6297 * The fraction_1 is the most significant (numbering as by DEC/Digital),
6298 * while the rightmost bit in each fraction is the least significant:
6299 * in other words, big-endian bit order within the fractions.
6301 * The fraction segments themselves would be big-endianly, except that
6302 * within 32 bit segments the less significant half comes first, the more
6303 * significant after, except that in the format H (used for long doubles)
6304 * the first fraction segment is alone, because the exponent is wider.
6305 * This means for example that both the most and the least significant
6306 * bits can be in the middle of the floats, not at either end.
6309 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
6310 * http://www.quadibloc.com/comp/cp0201.htm
6311 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
6312 * (somebody at HP should be fired for the URLs)
6314 * F fraction_2:16 sign:1 exp:8 fraction_1:7
6315 * (exponent bias 128, hidden first one-bit)
6317 * D fraction_2:16 sign:1 exp:8 fraction_1:7
6318 * fraction_4:16 fraction_3:16
6319 * (exponent bias 128, hidden first one-bit)
6321 * G fraction_2:16 sign:1 exp:11 fraction_1:4
6322 * fraction_4:16 fraction_3:16
6323 * (exponent bias 1024, hidden first one-bit)
6325 * H fraction_1:16 sign:1 exp:15
6326 * fraction_3:16 fraction_2:16
6327 * fraction_5:16 fraction_4:16
6328 * fraction_7:16 fraction_6:16
6329 * (exponent bias 16384, hidden first one-bit)
6330 * (available only on VAX, and only on Fortran?)
6332 * The formats S, T and X are available on the Alpha (and Itanium,
6333 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
6334 * binary32, binary64, and binary128 (commonly: float, double, long double).
6336 * S sign:1 exp:8 mantissa:23
6337 * (exponent bias 127, hidden first one-bit)
6339 * T sign:1 exp:11 mantissa:52
6340 * (exponent bias 1022, hidden first one-bit)
6342 * X sign:1 exp:15 mantissa:112
6343 * (exponent bias 16382, hidden first one-bit)
6347 #ifdef DOUBLE_IS_VAX_FLOAT
6348 # define DOUBLE_VAX_ENDIAN
6351 #ifdef DOUBLE_IS_IEEE_FORMAT
6352 /* All the basic IEEE formats have the implicit bit,
6353 * except for the x86 80-bit extended formats, which will undef this.
6354 * Also note that the IEEE 754 subnormals (formerly known as denormals)
6355 * do not have the implicit bit of one. */
6356 # define NV_IMPLICIT_BIT
6359 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
6361 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
6362 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6363 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6364 # define LONGDOUBLE_LITTLE_ENDIAN
6367 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
6368 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
6369 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6370 # define LONGDOUBLE_BIG_ENDIAN
6373 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6374 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6375 # define LONGDOUBLE_MIX_ENDIAN
6378 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6379 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6380 # define LONGDOUBLE_X86_80_BIT
6381 # ifdef USE_LONG_DOUBLE
6382 # undef NV_IMPLICIT_BIT
6383 # define NV_X86_80_BIT
6387 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6388 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6389 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6390 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6391 # define LONGDOUBLE_DOUBLEDOUBLE
6394 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
6395 # define LONGDOUBLE_VAX_ENDIAN
6398 #endif /* LONG_DOUBLEKIND */
6400 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
6401 # if defined(DOUBLE_LITTLE_ENDIAN)
6402 # define NV_LITTLE_ENDIAN
6403 # elif defined(DOUBLE_BIG_ENDIAN)
6404 # define NV_BIG_ENDIAN
6405 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
6406 # define NV_MIX_ENDIAN
6408 #elif NVSIZE == DOUBLESIZE
6409 # ifdef DOUBLE_LITTLE_ENDIAN
6410 # define NV_LITTLE_ENDIAN
6412 # ifdef DOUBLE_BIG_ENDIAN
6413 # define NV_BIG_ENDIAN
6415 # ifdef DOUBLE_MIX_ENDIAN
6416 # define NV_MIX_ENDIAN
6418 # ifdef DOUBLE_VAX_ENDIAN
6419 # define NV_VAX_ENDIAN
6421 #elif NVSIZE == LONG_DOUBLESIZE
6422 # ifdef LONGDOUBLE_LITTLE_ENDIAN
6423 # define NV_LITTLE_ENDIAN
6425 # ifdef LONGDOUBLE_BIG_ENDIAN
6426 # define NV_BIG_ENDIAN
6428 # ifdef LONGDOUBLE_MIX_ENDIAN
6429 # define NV_MIX_ENDIAN
6431 # ifdef LONGDOUBLE_VAX_ENDIAN
6432 # define NV_VAX_ENDIAN
6436 /* We have somehow managed not to define the denormal/subnormal
6439 * This may happen if the compiler doesn't expose the C99 math like
6440 * the fpclassify() without some special switches. Perl tries to
6441 * stay C89, so for example -std=c99 is not an option.
6443 * The Perl_isinf() and Perl_isnan() should have been defined even if
6444 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
6445 * from the C89 DBL_MIN or moral equivalent. */
6446 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
6447 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
6450 /* This is not a great fallback: subnormals tests will fail,
6451 * but at least Perl will link and 99.999% of tests will work. */
6452 #if !defined(Perl_fp_class_denorm)
6453 # define Perl_fp_class_denorm(x) FALSE
6456 #ifdef DOUBLE_IS_IEEE_FORMAT
6457 # define DOUBLE_HAS_INF
6458 # define DOUBLE_HAS_NAN
6461 #ifdef DOUBLE_HAS_NAN
6465 /* PL_inf and PL_nan initialization.
6467 * For inf and nan initialization the ultimate fallback is dividing
6468 * one or zero by zero: however, some compilers will warn or even fail
6469 * on divide-by-zero, but hopefully something earlier will work.
6471 * If you are thinking of using HUGE_VAL for infinity, or using
6472 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
6473 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
6474 * and the math functions might be just generating DBL_MAX, or even zero.
6476 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
6477 * Though logically correct, some compilers (like Visual C 2003)
6478 * falsely misoptimize that to zero (x-x is always zero, right?)
6480 * Finally, note that not all floating point formats define Inf (or NaN).
6481 * For the infinity a large number may be used instead. Operations that
6482 * under the IEEE floating point would return Inf or NaN may return
6483 * either large numbers (positive or negative), or they may cause
6484 * a floating point exception or some other fault.
6487 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
6488 GCC_DIAG_IGNORE(-Wc++-compat)
6490 # ifdef USE_QUADMATH
6491 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
6493 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
6494 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
6495 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
6496 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
6497 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
6499 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6500 # if defined(LDBL_INFINITY)
6501 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
6502 # elif defined(LDBL_INF)
6503 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
6504 # elif defined(INFINITY)
6505 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6507 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6509 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
6512 # if defined(DBL_INFINITY)
6513 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
6514 # elif defined(DBL_INF)
6515 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
6516 # elif defined(INFINITY) /* C99 */
6517 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6519 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6521 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
6526 # ifdef USE_QUADMATH
6527 /* Cannot use nanq("0") for PL_nan because not a compile-time
6529 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
6530 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
6531 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
6532 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
6533 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
6535 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6536 # if defined(LDBL_NAN)
6537 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
6538 # elif defined(LDBL_QNAN)
6539 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
6541 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6543 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
6546 # if defined(DBL_NAN)
6547 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
6548 # elif defined(DBL_QNAN)
6549 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
6550 # elif defined(NAN) /* C99 */
6551 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6553 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
6562 INFNAN_NV_U8_DECL PL_inf;
6563 INFNAN_NV_U8_DECL PL_nan;
6567 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
6568 * we will define NV_INF/NV_NAN as the nv part of the global const
6569 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
6570 * might not be a compile-time constant, in which case it cannot be
6571 * used to initialize PL_inf/PL_nan above. */
6573 # define NV_INF PL_inf.nv
6576 # define NV_NAN PL_nan.nv
6579 /* NaNs (not-a-numbers) can carry payload bits, in addition to
6580 * "nan-ness". Part of the payload is the quiet/signaling bit.
6581 * To back up a bit (harhar):
6583 * For IEEE 754 64-bit formats [1]:
6585 * s 000 (mantissa all-zero) zero
6586 * s 000 (mantissa non-zero) subnormals (denormals)
6587 * s 001 ... 7fe normals
6590 * For IEEE 754 128-bit formats:
6592 * s 0000 (mantissa all-zero) zero
6593 * s 0000 (mantissa non-zero) subnormals (denormals)
6594 * s 0001 ... 7ffe normals
6597 * [1] this looks like big-endian, but applies equally to little-endian.
6599 * s = Sign bit. Yes, zeros and nans can have negative sign,
6600 * the interpretation is application-specific.
6602 * q = Quietness bit, the interpretation is platform-specific.
6603 * Most platforms have the most significant bit being one
6604 * meaning quiet, but some (older mips, hppa) have the msb
6605 * being one meaning signaling. Note that the above means
6606 * that on most platforms there cannot be signaling nan with
6607 * zero payload because that is identical with infinity;
6608 * while conversely on older mips/hppa there cannot be a quiet nan
6609 * because that is identical with infinity.
6611 * Moreover, whether there is any behavioral difference
6612 * between quiet and signaling NaNs, depends on the platform.
6614 * x86 80-bit extended precision is different, the mantissa bits:
6616 * 63 62 61 30387+ pre-387 visual c
6617 * -------- ---- -------- --------
6618 * 0 0 0 invalid infinity
6619 * 0 0 1 invalid snan
6620 * 0 1 0 invalid snan
6621 * 0 1 1 invalid snan
6622 * 1 0 0 infinity snan 1.#INF
6623 * 1 0 1 snan 1.#SNAN
6624 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
6625 * 1 1 1 qnan 1.#QNAN
6627 * This means that in this format there are 61 bits available
6628 * for the nan payload.
6630 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
6631 * simply cannot preserve the bit. You can either use the 80-bit
6632 * extended precision (long double, -Duselongdouble), or use x86-64.
6634 * In all platforms, the payload bytes (and bits, some of them are
6635 * often in a partial byte) themselves can be either all zero (x86),
6636 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
6637 * or in a double-double, the first half of the payload can follow the
6638 * native double, while in the second half the payload can be all
6639 * zeros. (Therefore the mask for payload bits is not necessarily
6640 * identical to bit complement of the NaN.) Another way of putting
6641 * this: the payload for the default NaN might not be zero.
6643 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
6644 * being 'packaged' in either 12 or 16 bytes) can be whatever random
6647 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
6648 * On normal floats, the sign bit being on means negative. But this may,
6649 * or may not, be reverted on NaNs: in other words, the default NaN might
6650 * have the sign bit on, and therefore look like negative if you look
6651 * at it at the bit level.
6653 * NaN payloads are not propagated even on copies, or in arithmetics.
6654 * They *might* be, according to some rules, on your particular
6655 * cpu/os/compiler/libraries, but no guarantees.
6657 * To summarize, on most platforms, and for 64-bit doubles
6658 * (using big-endian ordering here):
6660 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
6661 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
6662 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
6663 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
6665 * The C99 nan() is supposed to generate *quiet* NaNs.
6667 * Note the asymmetry:
6668 * The 7FF0000000000000 is positive infinity,
6669 * the FFF0000000000000 is negative infinity.
6672 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
6673 * For the standard IEEE 754 fp this number is usually one less that
6674 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
6675 * real. For the 80-bit extended precision formats (x86*), the number
6676 * of mantissa bits... depends. For normal floats, it's 64. But for
6677 * the inf/nan, it's different (zero for inf, 61 for nan).
6678 * NVMANTBITS works for normal floats. */
6680 /* We do not want to include the quiet/signaling bit. */
6681 #define NV_NAN_BITS (NVMANTBITS - 1)
6683 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6684 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6685 # define NV_NAN_QS_BYTE_OFFSET 13
6686 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6687 # define NV_NAN_QS_BYTE_OFFSET 2
6688 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6689 # define NV_NAN_QS_BYTE_OFFSET 7
6690 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6691 # define NV_NAN_QS_BYTE_OFFSET 2
6692 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6693 # define NV_NAN_QS_BYTE_OFFSET 13
6694 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6695 # define NV_NAN_QS_BYTE_OFFSET 1
6696 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6697 # define NV_NAN_QS_BYTE_OFFSET 9
6698 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6699 # define NV_NAN_QS_BYTE_OFFSET 6
6701 # error "Unexpected long double format"
6704 # ifdef USE_QUADMATH
6705 # ifdef NV_LITTLE_ENDIAN
6706 # define NV_NAN_QS_BYTE_OFFSET 13
6707 # elif defined(NV_BIG_ENDIAN)
6708 # define NV_NAN_QS_BYTE_OFFSET 2
6710 # error "Unexpected quadmath format"
6712 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6713 # define NV_NAN_QS_BYTE_OFFSET 2
6714 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6715 # define NV_NAN_QS_BYTE_OFFSET 1
6716 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6717 # define NV_NAN_QS_BYTE_OFFSET 6
6718 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6719 # define NV_NAN_QS_BYTE_OFFSET 1
6720 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6721 # define NV_NAN_QS_BYTE_OFFSET 13
6722 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6723 # define NV_NAN_QS_BYTE_OFFSET 2
6724 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6725 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
6726 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6727 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
6729 /* For example the VAX formats should never
6730 * get here because they do not have NaN. */
6731 # error "Unexpected double format"
6734 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
6735 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
6736 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
6737 * for the quiet/signaling */
6738 #if defined(USE_LONG_DOUBLE) && \
6739 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6740 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
6741 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
6742 #elif defined(USE_LONG_DOUBLE) && \
6743 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6744 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6745 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6746 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
6747 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
6749 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
6751 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
6752 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
6753 * (bytes ordered big-endianly) for the quiet/signaling bit
6754 * for the quiet/signaling */
6755 #define NV_NAN_QS_BIT_OFFSET \
6756 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
6757 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
6758 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
6759 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
6760 #define NV_NAN_QS_QUIET \
6761 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
6762 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
6763 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
6764 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
6765 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
6766 * Note however that these do not check whether the nvp is a NaN. */
6767 #define NV_NAN_IS_QUIET(nvp) \
6768 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
6769 #define NV_NAN_IS_SIGNALING(nvp) \
6770 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
6771 #define NV_NAN_SET_QUIET(nvp) \
6772 (NV_NAN_QS_QUIET ? \
6773 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
6774 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
6775 #define NV_NAN_SET_SIGNALING(nvp) \
6776 (NV_NAN_QS_QUIET ? \
6777 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
6778 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
6779 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
6781 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
6783 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
6784 * 0xFF means "don't go here".*/
6786 /* Shorthands to avoid typoses. */
6787 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
6788 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
6789 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
6790 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6791 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
6792 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
6793 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
6794 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6795 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
6796 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
6797 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
6798 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
6799 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6800 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
6801 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
6802 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6803 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6804 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
6805 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
6806 NV_NAN_PAYLOAD_PERM_7_TO_0
6807 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
6808 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
6809 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
6810 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
6811 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
6812 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6813 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
6814 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6816 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6817 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6818 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6819 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6820 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6821 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6822 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6823 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6824 # if LONG_DOUBLESIZE == 10
6825 # define NV_NAN_PAYLOAD_MASK \
6826 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6828 # define NV_NAN_PAYLOAD_PERM \
6829 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
6830 # elif LONG_DOUBLESIZE == 12
6831 # define NV_NAN_PAYLOAD_MASK \
6832 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6833 0x00, 0x00, 0x00, 0x00
6834 # define NV_NAN_PAYLOAD_PERM \
6835 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
6836 # elif LONG_DOUBLESIZE == 16
6837 # define NV_NAN_PAYLOAD_MASK \
6838 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6839 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6840 # define NV_NAN_PAYLOAD_PERM \
6841 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6842 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6844 # error "Unexpected x86 80-bit little-endian long double format"
6846 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6847 # if LONG_DOUBLESIZE == 10
6848 # define NV_NAN_PAYLOAD_MASK \
6849 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6851 # define NV_NAN_PAYLOAD_PERM \
6852 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
6853 # elif LONG_DOUBLESIZE == 12
6854 # define NV_NAN_PAYLOAD_MASK \
6855 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6856 0xff, 0xff, 0x00, 0x00
6857 # define NV_NAN_PAYLOAD_PERM \
6858 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
6859 # elif LONG_DOUBLESIZE == 16
6860 # define NV_NAN_PAYLOAD_MASK \
6861 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6862 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6863 # define NV_NAN_PAYLOAD_PERM \
6864 NV_NAN_PAYLOAD_PERM_7_TO_0, \
6865 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6867 # error "Unexpected x86 80-bit big-endian long double format"
6869 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6870 /* For double-double we assume only the first double (in LE or BE terms)
6871 * is used for NaN. */
6872 # define NV_NAN_PAYLOAD_MASK \
6873 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6874 # define NV_NAN_PAYLOAD_PERM \
6875 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6876 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6877 # define NV_NAN_PAYLOAD_MASK \
6878 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6879 # define NV_NAN_PAYLOAD_PERM \
6880 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6881 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6882 # define NV_NAN_PAYLOAD_MASK \
6883 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6884 # define NV_NAN_PAYLOAD_PERM \
6885 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6886 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6887 # define NV_NAN_PAYLOAD_MASK \
6888 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6889 # define NV_NAN_PAYLOAD_PERM \
6890 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6892 # error "Unexpected long double format"
6895 # ifdef USE_QUADMATH /* quadmath is not long double */
6896 # ifdef NV_LITTLE_ENDIAN
6897 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6898 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6899 # elif defined(NV_BIG_ENDIAN)
6900 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6901 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6903 # error "Unexpected quadmath format"
6905 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6906 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
6907 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
6908 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6909 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
6910 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
6911 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6912 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6913 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6914 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6915 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6916 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6917 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6918 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6919 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6920 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6921 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6922 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6923 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6924 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
6925 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
6926 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6927 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
6928 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
6930 # error "Unexpected double format"
6934 #endif /* DOUBLE_HAS_NAN */
6939 (KEEP THIS LAST IN perl.h!)
6981 so that Configure picks them up.
6983 (KEEP THIS LAST IN perl.h!)
6987 #endif /* Include guard */
6990 * ex: set ts=8 sts=4 sw=4 et: