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 1
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 now
1430 * assume a working C89 implementation. */
1432 #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
1435 # define my_snprintf Perl_my_snprintf
1436 # define PERL_MY_SNPRINTF_GUARDED
1437 #elif defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1438 # ifdef PERL_USE_GCC_BRACE_GROUPS
1439 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1440 # define PERL_MY_SNPRINTF_GUARDED
1442 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1445 # define my_snprintf Perl_my_snprintf
1446 # define PERL_MY_SNPRINTF_GUARDED
1449 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1450 * dies if called under USE_QUADMATH. */
1451 #if defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1452 # ifdef PERL_USE_GCC_BRACE_GROUPS
1453 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1454 # define PERL_MY_VSNPRINTF_GUARDED
1456 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1459 # define my_vsnprintf Perl_my_vsnprintf
1460 # define PERL_MY_VSNPRINTF_GUARDED
1463 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1464 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1465 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1466 * completely ignore it: otherwise you cannot know whether your output
1469 * int len = my_sprintf(buf, max, ...);
1470 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1472 * The trick is that in certain platforms [a] the my_sprintf() already
1473 * contains the sanity check, while in certain platforms [b] it needs
1474 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1475 * platforms the POST_GUARD actually does nothing since the check has
1476 * already been done. Watch out for the max being the same in both calls.
1478 * If you actually use the snprintf/vsnprintf return value already,
1479 * you assumedly are checking its validity somehow. But you can
1480 * insert the POST_GUARD() also in that case. */
1482 #ifndef PERL_MY_SNPRINTF_GUARDED
1483 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1485 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1488 #ifndef PERL_MY_VSNPRINTF_GUARDED
1489 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1491 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1495 # define my_strlcat strlcat
1497 # define my_strlcat Perl_my_strlcat
1500 #if defined(PERL_CORE) || defined(PERL_EXT)
1502 # define my_memrchr memrchr
1504 # define my_memrchr S_my_memrchr
1509 # define my_strlcpy strlcpy
1511 # define my_strlcpy Perl_my_strlcpy
1515 # define my_strnlen strnlen
1517 # define my_strnlen Perl_my_strnlen
1521 The IV type is supposed to be long enough to hold any integral
1523 --Andy Dougherty August 1996
1529 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1530 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1531 # define IV_MAX INT64_MAX
1532 # define IV_MIN INT64_MIN
1533 # define UV_MAX UINT64_MAX
1535 # define UINT64_MIN 0
1537 # define UV_MIN UINT64_MIN
1539 # define IV_MAX PERL_QUAD_MAX
1540 # define IV_MIN PERL_QUAD_MIN
1541 # define UV_MAX PERL_UQUAD_MAX
1542 # define UV_MIN PERL_UQUAD_MIN
1547 # if defined(INT32_MAX) && IVSIZE == 4
1548 # define IV_MAX INT32_MAX
1549 # define IV_MIN INT32_MIN
1550 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1551 # define UV_MAX UINT32_MAX
1553 # define UV_MAX 4294967295U
1556 # define UINT32_MIN 0
1558 # define UV_MIN UINT32_MIN
1560 # define IV_MAX PERL_LONG_MAX
1561 # define IV_MIN PERL_LONG_MIN
1562 # define UV_MAX PERL_ULONG_MAX
1563 # define UV_MIN PERL_ULONG_MIN
1574 #if !defined(PERL_CORE) || defined(USING_MSVC6)
1575 /* We think that removing this decade-old undef this will cause too much
1576 breakage on CPAN for too little gain. (See RT #119753)
1577 However, we do need HAS_QUAD in the core for use by the drand48 code,
1578 but not for Win32 VC6 because it has poor __int64 support. */
1584 #define Size_t_MAX (~(Size_t)0)
1585 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1587 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1588 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1590 #ifndef NO_PERL_PRESERVE_IVUV
1591 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1595 * The macros INT2PTR and NUM2PTR are (despite their names)
1596 * bi-directional: they will convert int/float to or from pointers.
1597 * However the conversion to int/float are named explicitly:
1598 * PTR2IV, PTR2UV, PTR2NV.
1600 * For int conversions we do not need two casts if pointers are
1601 * the same size as IV and UV. Otherwise we need an explicit
1602 * cast (PTRV) to avoid compiler warnings.
1604 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1606 # define INT2PTR(any,d) (any)(d)
1607 #elif PTRSIZE == LONGSIZE
1608 # define PTRV unsigned long
1609 # define PTR2ul(p) (unsigned long)(p)
1611 # define PTRV unsigned
1615 # define INT2PTR(any,d) (any)(PTRV)(d)
1619 # define PTR2ul(p) INT2PTR(unsigned long,p)
1622 #define NUM2PTR(any,d) (any)(PTRV)(d)
1623 #define PTR2IV(p) INT2PTR(IV,p)
1624 #define PTR2UV(p) INT2PTR(UV,p)
1625 #define PTR2NV(p) NUM2PTR(NV,p)
1626 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1628 /* According to strict ANSI C89 one cannot freely cast between
1629 * data pointers and function (code) pointers. There are at least
1630 * two ways around this. One (used below) is to do two casts,
1631 * first the other pointer to an (unsigned) integer, and then
1632 * the integer to the other pointer. The other way would be
1633 * to use unions to "overlay" the pointers. For an example of
1634 * the latter technique, see union dirpu in struct xpvio in sv.h.
1635 * The only feasible use is probably temporarily storing
1636 * function pointers in a data pointer (such as a void pointer). */
1638 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1639 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1641 #ifdef USE_LONG_DOUBLE
1642 # if LONG_DOUBLESIZE == DOUBLESIZE
1643 # define LONG_DOUBLE_EQUALS_DOUBLE
1644 # undef USE_LONG_DOUBLE /* Ouch! */
1648 /* The following is all to get LDBL_DIG, in order to pick a nice
1649 default value for printing floating point numbers in Gconvert.
1652 #ifndef HAS_LDBL_DIG
1653 # if LONG_DOUBLESIZE == 10
1654 # define LDBL_DIG 18 /* assume IEEE */
1655 # elif LONG_DOUBLESIZE == 12
1656 # define LDBL_DIG 18 /* gcc? */
1657 # elif LONG_DOUBLESIZE == 16
1658 # define LDBL_DIG 33 /* assume IEEE */
1659 # elif LONG_DOUBLESIZE == DOUBLESIZE
1660 # define LDBL_DIG DBL_DIG /* bummer */
1667 # include <ieeefp.h>
1671 /* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1672 * and for example NaN < IV_MIN. */
1673 # define NAN_COMPARE_BROKEN
1675 #if defined(__DECC) && defined(__osf__)
1676 /* Also Tru64 cc has broken NaN comparisons. */
1677 # define NAN_COMPARE_BROKEN
1680 # define NAN_COMPARE_BROKEN
1683 #ifdef USE_LONG_DOUBLE
1685 # include <sunmath.h>
1687 # if defined(LDBL_DIG)
1688 # define NV_DIG LDBL_DIG
1689 # ifdef LDBL_MANT_DIG
1690 # define NV_MANT_DIG LDBL_MANT_DIG
1693 # define NV_MIN LDBL_MIN
1696 # define NV_MAX LDBL_MAX
1698 # ifdef LDBL_MIN_EXP
1699 # define NV_MIN_EXP LDBL_MIN_EXP
1701 # ifdef LDBL_MAX_EXP
1702 # define NV_MAX_EXP LDBL_MAX_EXP
1704 # ifdef LDBL_MIN_10_EXP
1705 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
1707 # ifdef LDBL_MAX_10_EXP
1708 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
1710 # ifdef LDBL_EPSILON
1711 # define NV_EPSILON LDBL_EPSILON
1714 # define NV_MAX LDBL_MAX
1715 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
1716 # elif defined(HUGE_VALL)
1717 # define NV_MAX HUGE_VALL
1720 # if defined(HAS_SQRTL)
1721 # define Perl_acos acosl
1722 # define Perl_asin asinl
1723 # define Perl_atan atanl
1724 # define Perl_atan2 atan2l
1725 # define Perl_ceil ceill
1726 # define Perl_cos cosl
1727 # define Perl_cosh coshl
1728 # define Perl_exp expl
1729 /* no Perl_fabs, but there's PERL_ABS */
1730 # define Perl_floor floorl
1731 # define Perl_fmod fmodl
1732 # define Perl_log logl
1733 # define Perl_log10 log10l
1734 # define Perl_pow powl
1735 # define Perl_sin sinl
1736 # define Perl_sinh sinhl
1737 # define Perl_sqrt sqrtl
1738 # define Perl_tan tanl
1739 # define Perl_tanh tanhl
1741 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1744 # define Perl_modf(x,y) modfl(x,y)
1745 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1746 prototype in <math.h> */
1747 # ifndef HAS_MODFL_PROTO
1748 EXTERN_C long double modfl(long double, long double *);
1750 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
1751 extern long double Perl_my_modfl(long double x, long double *ip);
1752 # define Perl_modf(x,y) Perl_my_modfl(x,y)
1757 # define Perl_frexp(x,y) frexpl(x,y)
1758 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1759 extern long double Perl_my_frexpl(long double x, int *e);
1760 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1765 # define Perl_ldexp(x, y) ldexpl(x,y)
1766 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
1767 # define Perl_ldexp(x,y) scalbnl(x,y)
1771 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
1772 # define Perl_isnan(x) isnanl(x)
1773 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1774 # define Perl_isnan(x) isnan(x)
1778 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
1779 # define Perl_isinf(x) isinfl(x)
1780 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1781 # define Perl_isinf(x) isinf(x)
1782 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
1783 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
1786 # ifndef Perl_isfinite
1787 # define Perl_isfinite(x) Perl_isfinitel(x)
1789 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1790 # include <quadmath.h>
1791 # define NV_DIG FLT128_DIG
1792 # define NV_MANT_DIG FLT128_MANT_DIG
1793 # define NV_MIN FLT128_MIN
1794 # define NV_MAX FLT128_MAX
1795 # define NV_MIN_EXP FLT128_MIN_EXP
1796 # define NV_MAX_EXP FLT128_MAX_EXP
1797 # define NV_EPSILON FLT128_EPSILON
1798 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
1799 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
1800 # define Perl_acos acosq
1801 # define Perl_asin asinq
1802 # define Perl_atan atanq
1803 # define Perl_atan2 atan2q
1804 # define Perl_ceil ceilq
1805 # define Perl_cos cosq
1806 # define Perl_cosh coshq
1807 # define Perl_exp expq
1808 /* no Perl_fabs, but there's PERL_ABS */
1809 # define Perl_floor floorq
1810 # define Perl_fmod fmodq
1811 # define Perl_log logq
1812 # define Perl_log10 log10q
1813 # define Perl_pow powq
1814 # define Perl_sin sinq
1815 # define Perl_sinh sinhq
1816 # define Perl_sqrt sqrtq
1817 # define Perl_tan tanq
1818 # define Perl_tanh tanhq
1819 # define Perl_modf(x,y) modfq(x,y)
1820 # define Perl_frexp(x,y) frexpq(x,y)
1821 # define Perl_ldexp(x, y) ldexpq(x,y)
1822 # define Perl_isinf(x) isinfq(x)
1823 # define Perl_isnan(x) isnanq(x)
1824 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
1825 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
1826 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
1827 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
1828 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
1829 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
1830 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
1832 # define NV_DIG DBL_DIG
1833 # define NV_MANT_DIG DBL_MANT_DIG
1834 # define NV_MIN DBL_MIN
1835 # define NV_MAX DBL_MAX
1836 # define NV_MIN_EXP DBL_MIN_EXP
1837 # define NV_MAX_EXP DBL_MAX_EXP
1838 # define NV_MIN_10_EXP DBL_MIN_10_EXP
1839 # define NV_MAX_10_EXP DBL_MAX_10_EXP
1840 # define NV_EPSILON DBL_EPSILON
1841 # define NV_MAX DBL_MAX
1842 # define NV_MIN DBL_MIN
1844 /* These math interfaces are C89. */
1845 # define Perl_acos acos
1846 # define Perl_asin asin
1847 # define Perl_atan atan
1848 # define Perl_atan2 atan2
1849 # define Perl_ceil ceil
1850 # define Perl_cos cos
1851 # define Perl_cosh cosh
1852 # define Perl_exp exp
1853 /* no Perl_fabs, but there's PERL_ABS */
1854 # define Perl_floor floor
1855 # define Perl_fmod fmod
1856 # define Perl_log log
1857 # define Perl_log10 log10
1858 # define Perl_pow pow
1859 # define Perl_sin sin
1860 # define Perl_sinh sinh
1861 # define Perl_sqrt sqrt
1862 # define Perl_tan tan
1863 # define Perl_tanh tanh
1865 # define Perl_modf(x,y) modf(x,y)
1866 # define Perl_frexp(x,y) frexp(x,y)
1867 # define Perl_ldexp(x,y) ldexp(x,y)
1871 # define Perl_isnan(x) isnan(x)
1875 # if defined(HAS_ISINF)
1876 # define Perl_isinf(x) isinf(x)
1877 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
1878 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1881 # ifndef Perl_isfinite
1882 # ifdef HAS_ISFINITE
1883 # define Perl_isfinite(x) isfinite(x)
1884 # elif defined(HAS_FINITE)
1885 # define Perl_isfinite(x) finite(x)
1890 /* fpclassify(): C99. It is supposed to be a macro that switches on
1891 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
1892 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
1894 # if defined(FP_INFINITE) && defined(FP_NAN)
1895 # define Perl_fp_class(x) fpclassify(x)
1896 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1897 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1898 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1899 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1900 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1901 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
1902 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
1903 * actually not the C99 fpclassify, with its own set of return defines. */
1904 # define Perl_fp_class(x) fpclassify(x)
1905 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
1906 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
1907 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1908 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1909 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1910 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
1911 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
1912 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
1913 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
1914 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
1916 # undef Perl_fp_class /* Unknown set of defines */
1920 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
1921 * are identical to the C99 fpclassify(). */
1922 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
1925 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
1927 /* oh, and the isnormal macro has a typo in it! */
1929 # define isnormal(x) Perl_fp_class_norm(x)
1931 # if defined(FP_INFINITE) && defined(FP_NAN)
1932 # define Perl_fp_class(x) fp_classify(x)
1933 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1934 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1935 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1936 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1937 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1939 # undef Perl_fp_class /* Unknown set of defines */
1943 /* Feel free to check with me for the SGI manpages, SGI testing,
1944 * etcetera, if you want to try getting this to work with IRIX.
1946 * - Allen <allens@cpan.org> */
1948 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
1949 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
1950 /* Solaris and IRIX have fpclass/fpclassl, but they are using
1951 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
1952 * Define some symbols also as cpp symbols so we can detect them. */
1953 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
1954 # define FP_PINF FP_PINF
1955 # define FP_QNAN FP_QNAN
1959 # include <ieeefp.h>
1964 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
1965 # define Perl_fp_class(x) fpclassl(x)
1967 # define Perl_fp_class(x) fpclass(x)
1969 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
1970 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
1971 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
1972 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
1973 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
1974 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
1975 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
1976 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
1977 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
1978 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
1979 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
1980 # elif defined(FP_PINF) && defined(FP_QNAN)
1981 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1982 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1983 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
1984 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
1985 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
1986 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
1987 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
1988 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
1989 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
1990 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
1992 # undef Perl_fp_class /* Unknown set of defines */
1996 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
1997 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
1999 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2000 # include <fp_class.h>
2002 # if defined(FP_POS_INF) && defined(FP_QNAN)
2003 # ifdef __sgi /* XXX Configure test instead */
2004 # ifdef USE_LONG_DOUBLE
2005 # define Perl_fp_class(x) fp_class_l(x)
2007 # define Perl_fp_class(x) fp_class_d(x)
2010 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2011 # define Perl_fp_class(x) fp_classl(x)
2013 # define Perl_fp_class(x) fp_class(x)
2016 # if defined(FP_POS_INF) && defined(FP_QNAN)
2017 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2018 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2019 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2020 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2021 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2022 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2023 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2024 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2025 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2026 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2028 # undef Perl_fp_class /* Unknown set of defines */
2033 /* class(), _class(): Legacy: AIX. */
2034 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2036 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2038 # define Perl_fp_class(x) class(x)
2040 # define Perl_fp_class(x) _class(x)
2042 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2043 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2044 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2045 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2046 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2047 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2048 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2049 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2050 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2051 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2052 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2054 # undef Perl_fp_class /* Unknown set of defines */
2059 /* Win32: _fpclass(), _isnan(), _finite(). */
2062 # define Perl_isnan(x) _isnan(x)
2064 # ifndef Perl_isfinite
2065 # define Perl_isfinite(x) _finite(x)
2067 # ifndef Perl_fp_class_snan
2068 /* No simple way to #define Perl_fp_class because _fpclass()
2069 * returns a set of bits. */
2070 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2071 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2072 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2073 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2074 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2075 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2076 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2077 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2078 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2079 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2080 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2081 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2082 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2083 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2084 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2088 #if !defined(Perl_fp_class_inf) && \
2089 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2090 # define Perl_fp_class_inf(x) \
2091 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2094 #if !defined(Perl_fp_class_nan) && \
2095 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2096 # define Perl_fp_class_nan(x) \
2097 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2100 #if !defined(Perl_fp_class_zero) && \
2101 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2102 # define Perl_fp_class_zero(x) \
2103 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2106 #if !defined(Perl_fp_class_norm) && \
2107 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2108 # define Perl_fp_class_norm(x) \
2109 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2112 #if !defined(Perl_fp_class_denorm) && \
2113 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2114 # define Perl_fp_class_denorm(x) \
2115 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2119 int isnan(double d);
2123 # ifdef Perl_fp_class_nan
2124 # define Perl_isnan(x) Perl_fp_class_nan(x)
2125 # elif defined(HAS_UNORDERED)
2126 # define Perl_isnan(x) unordered((x), 0.0)
2128 # define Perl_isnan(x) ((x)!=(x))
2133 # ifdef Perl_fp_class_inf
2134 # define Perl_isinf(x) Perl_fp_class_inf(x)
2138 #ifndef Perl_isfinite
2139 # if defined(HAS_ISFINITE) && !defined(isfinite)
2140 # define Perl_isfinite(x) isfinite((double)(x))
2141 # elif defined(HAS_FINITE)
2142 # define Perl_isfinite(x) finite((double)(x))
2143 # elif defined(Perl_fp_class_finite)
2144 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2146 /* For the infinities the multiplication returns nan,
2147 * for the nan the multiplication also returns nan,
2148 * for everything else (that is, finite) zero should be returned. */
2149 # define Perl_isfinite(x) (((x) * 0) == 0)
2154 # if defined(Perl_isfinite) && defined(Perl_isnan)
2155 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2159 /* We need Perl_isfinitel (ends with ell) (if available) even when
2160 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2162 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2163 /* If isfinite() is a macro and looks like we have C99,
2164 * we assume it's the type-aware C99 isfinite(). */
2165 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2166 # define Perl_isfinitel(x) isfinite(x)
2167 # elif defined(HAS_ISFINITEL)
2168 # define Perl_isfinitel(x) isfinitel(x)
2169 # elif defined(HAS_FINITEL)
2170 # define Perl_isfinitel(x) finitel(x)
2171 # elif defined(HAS_INFL) && defined(HAS_NANL)
2172 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2174 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2178 /* The default is to use Perl's own atof() implementation (in numeric.c).
2179 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2180 * it is however best to use the native implementation of atof.
2181 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2182 * Some good tests to try out with either setting are t/base/num.t,
2183 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2184 * you may need to be using a different function than atof! */
2186 #ifndef USE_PERL_ATOF
2188 # define USE_PERL_ATOF
2191 # if USE_PERL_ATOF == 0
2192 # undef USE_PERL_ATOF
2196 #ifdef USE_PERL_ATOF
2197 # define Perl_atof(s) Perl_my_atof(s)
2198 # define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2200 # define Perl_atof(s) (NV)atof(s)
2201 # define Perl_atof2(s, n) ((n) = atof(s))
2205 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2206 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2207 * depending on local options. Until Configure detects this (or at least
2208 * detects whether the "signed" keyword is available) the CHAR ranges
2209 * will not be included. UCHAR functions normally.
2213 #define PERL_UCHAR_MIN ((unsigned char)0)
2214 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2216 #define PERL_USHORT_MIN ((unsigned short)0)
2217 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2219 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2220 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2222 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2223 #define PERL_UINT_MIN ((unsigned int)0)
2225 #define PERL_INT_MAX ((int)INT_MAX)
2226 #define PERL_INT_MIN ((int)INT_MIN)
2228 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2229 #define PERL_ULONG_MIN ((unsigned long)0L)
2231 #define PERL_LONG_MAX ((long)LONG_MAX)
2232 #define PERL_LONG_MIN ((long)LONG_MIN)
2235 # define PERL_UQUAD_MAX (~(UV)0)
2236 # define PERL_UQUAD_MIN ((UV)0)
2237 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2238 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2241 typedef MEM_SIZE STRLEN;
2243 typedef struct op OP;
2244 typedef struct cop COP;
2245 typedef struct unop UNOP;
2246 typedef struct unop_aux UNOP_AUX;
2247 typedef struct binop BINOP;
2248 typedef struct listop LISTOP;
2249 typedef struct logop LOGOP;
2250 typedef struct pmop PMOP;
2251 typedef struct svop SVOP;
2252 typedef struct padop PADOP;
2253 typedef struct pvop PVOP;
2254 typedef struct loop LOOP;
2255 typedef struct methop METHOP;
2258 typedef struct opslab OPSLAB;
2259 typedef struct opslot OPSLOT;
2262 typedef struct block_hooks BHK;
2263 typedef struct custom_op XOP;
2265 typedef struct interpreter PerlInterpreter;
2267 /* SGI's <sys/sema.h> has struct sv */
2269 # define STRUCT_SV perl_sv
2271 # define STRUCT_SV sv
2273 typedef struct STRUCT_SV SV;
2274 typedef struct av AV;
2275 typedef struct hv HV;
2276 typedef struct cv CV;
2277 typedef struct p5rx REGEXP;
2278 typedef struct gp GP;
2279 typedef struct gv GV;
2280 typedef struct io IO;
2281 typedef struct context PERL_CONTEXT;
2282 typedef struct block BLOCK;
2284 typedef struct magic MAGIC;
2285 typedef struct xpv XPV;
2286 typedef struct xpviv XPVIV;
2287 typedef struct xpvuv XPVUV;
2288 typedef struct xpvnv XPVNV;
2289 typedef struct xpvmg XPVMG;
2290 typedef struct xpvlv XPVLV;
2291 typedef struct xpvinvlist XINVLIST;
2292 typedef struct xpvav XPVAV;
2293 typedef struct xpvhv XPVHV;
2294 typedef struct xpvgv XPVGV;
2295 typedef struct xpvcv XPVCV;
2296 typedef struct xpvbm XPVBM;
2297 typedef struct xpvfm XPVFM;
2298 typedef struct xpvio XPVIO;
2299 typedef struct mgvtbl MGVTBL;
2300 typedef union any ANY;
2301 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2302 typedef struct ptr_tbl PTR_TBL_t;
2303 typedef struct clone_params CLONE_PARAMS;
2305 /* a pad is currently just an AV; but that might change,
2306 * so hide the type. */
2307 typedef struct padlist PADLIST;
2309 typedef struct padnamelist PADNAMELIST;
2310 typedef struct padname PADNAME;
2312 /* enable PERL_OP_PARENT by default */
2313 #if !defined(PERL_OP_PARENT) && !defined(PERL_NO_OP_PARENT)
2314 # define PERL_OP_PARENT
2317 /* enable PERL_COPY_ON_WRITE by default */
2318 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2319 # define PERL_COPY_ON_WRITE
2322 #ifdef PERL_COPY_ON_WRITE
2323 # define PERL_ANY_COW
2325 # define PERL_SAWAMPERSAND
2328 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2329 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2333 #include "charclass_invlists.h"
2335 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2336 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2337 # define USE_64_BIT_RAWIO /* implicit */
2341 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2342 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2343 * however, because operating systems like to do that themself. */
2346 # define FSEEKSIZE LSEEKSIZE
2348 # define FSEEKSIZE LONGSIZE
2352 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2353 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2354 # define USE_64_BIT_STDIO /* implicit */
2358 #ifdef USE_64_BIT_RAWIO
2361 # define Off_t off64_t
2363 # define LSEEKSIZE 8
2365 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2366 * will trigger defines like the ones below. Some 64-bit environments,
2367 * however, do not. Therefore we have to explicitly mix and match. */
2368 # if defined(USE_OPEN64)
2369 # define open open64
2371 # if defined(USE_LSEEK64)
2372 # define lseek lseek64
2374 # if defined(USE_LLSEEK)
2375 # define lseek llseek
2378 # if defined(USE_STAT64)
2379 # define stat stat64
2381 # if defined(USE_FSTAT64)
2382 # define fstat fstat64
2384 # if defined(USE_LSTAT64)
2385 # define lstat lstat64
2387 # if defined(USE_FLOCK64)
2388 # define flock flock64
2390 # if defined(USE_LOCKF64)
2391 # define lockf lockf64
2393 # if defined(USE_FCNTL64)
2394 # define fcntl fcntl64
2396 # if defined(USE_TRUNCATE64)
2397 # define truncate truncate64
2399 # if defined(USE_FTRUNCATE64)
2400 # define ftruncate ftruncate64
2404 #ifdef USE_64_BIT_STDIO
2405 # ifdef HAS_FPOS64_T
2407 # define Fpos_t fpos64_t
2409 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2410 * will trigger defines like the ones below. Some 64-bit environments,
2411 * however, do not. */
2412 # if defined(USE_FOPEN64)
2413 # define fopen fopen64
2415 # if defined(USE_FSEEK64)
2416 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2418 # if defined(USE_FTELL64)
2419 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2421 # if defined(USE_FSETPOS64)
2422 # define fsetpos fsetpos64
2424 # if defined(USE_FGETPOS64)
2425 # define fgetpos fgetpos64
2427 # if defined(USE_TMPFILE64)
2428 # define tmpfile tmpfile64
2430 # if defined(USE_FREOPEN64)
2431 # define freopen freopen64
2436 # include "iperlsys.h"
2441 # include "os2ish.h"
2443 # include "dosish.h"
2446 # include "vmsish.h"
2447 #elif defined(PLAN9)
2448 # include "./plan9/plan9ish.h"
2449 #elif defined(__VOS__)
2451 # include "./vos/vosish.h"
2453 # include "vos/vosish.h"
2455 #elif defined(__SYMBIAN32__)
2456 # include "symbian/symbianish.h"
2457 #elif defined(__HAIKU__)
2458 # include "haiku/haikuish.h"
2460 # include "unixish.h"
2464 # include "amigaos.h"
2465 # undef FD_CLOEXEC /* a lie in AmigaOS */
2468 /* NSIG logic from Configure --> */
2471 # define NSIG (_NSIG)
2472 # elif defined(SIGMAX)
2473 # define NSIG (SIGMAX+1)
2474 # elif defined(SIG_MAX)
2475 # define NSIG (SIG_MAX+1)
2476 # elif defined(_SIG_MAX)
2477 # define NSIG (_SIG_MAX+1)
2478 # elif defined(MAXSIG)
2479 # define NSIG (MAXSIG+1)
2480 # elif defined(MAX_SIG)
2481 # define NSIG (MAX_SIG+1)
2482 # elif defined(SIGARRAYSIZE)
2483 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2484 # elif defined(_sys_nsig)
2485 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2487 /* Default to some arbitrary number that's big enough to get most
2488 * of the common signals. */
2492 /* <-- NSIG logic from Configure */
2494 #ifndef NO_ENVIRON_ARRAY
2495 # define USE_ENVIRON_ARRAY
2499 * initialise to avoid floating-point exceptions from overflow, etc
2501 #ifndef PERL_FPU_INIT
2502 # ifdef HAS_FPSETMASK
2503 # if HAS_FLOATINGPOINT_H
2504 # include <floatingpoint.h>
2506 /* Some operating systems have this as a macro, which in turn expands to a comma
2507 expression, and the last sub-expression is something that gets calculated,
2508 and then they have the gall to warn that a value computed is not used. Hence
2510 # define PERL_FPU_INIT (void)fpsetmask(0)
2511 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2512 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2513 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2514 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2516 # define PERL_FPU_INIT
2519 #ifndef PERL_FPU_PRE_EXEC
2520 # define PERL_FPU_PRE_EXEC {
2521 # define PERL_FPU_POST_EXEC }
2524 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2525 * We need to reenable the "invalid" trap because otherwise generation
2526 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2527 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2529 # include <machine/fpu.h>
2530 # define PERL_SYS_FPU_INIT \
2532 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2533 signal(SIGFPE, SIG_IGN); \
2536 /* In IRIX the default for Flush to Zero bit is true,
2537 * which means that results going below the minimum of normal
2538 * floating points go to zero, instead of going denormal/subnormal.
2539 * This is unlike almost any other system running Perl, so let's clear it.
2540 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2541 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2543 * XXX The flush-to-zero behaviour should be a Configure scan.
2544 * To change the behaviour usually requires some system-specific
2545 * incantation, though, like the below. */
2547 # include <sys/fpu.h>
2548 # define PERL_SYS_FPU_INIT \
2550 union fpc_csr csr; \
2551 csr.fc_word = get_fpc_csr(); \
2552 csr.fc_struct.flush = 0; \
2553 set_fpc_csr(csr.fc_word); \
2557 #ifndef PERL_SYS_FPU_INIT
2558 # define PERL_SYS_FPU_INIT NOOP
2561 #ifndef PERL_SYS_INIT3_BODY
2562 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2566 =head1 Miscellaneous Functions
2568 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
2569 Provides system-specific tune up of the C runtime environment necessary to
2570 run Perl interpreters. This should be called only once, before creating
2571 any Perl interpreters.
2573 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
2574 Provides system-specific tune up of the C runtime environment necessary to
2575 run Perl interpreters. This should be called only once, before creating
2576 any Perl interpreters.
2578 =for apidoc Am|void|PERL_SYS_TERM|
2579 Provides system-specific clean up of the C runtime environment after
2580 running Perl interpreters. This should be called only once, after
2581 freeing any remaining Perl interpreters.
2586 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2587 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
2588 #define PERL_SYS_TERM() Perl_sys_term()
2590 #ifndef PERL_WRITE_MSG_TO_CONSOLE
2591 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2596 # ifdef _POSIX_PATH_MAX
2597 # if PATH_MAX > _POSIX_PATH_MAX
2598 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2599 * included the null byte or not. Later amendments of POSIX,
2600 * XPG4, the Austin Group, and the Single UNIX Specification
2601 * all explicitly include the null byte in the PATH_MAX.
2602 * Ditto for _POSIX_PATH_MAX. */
2603 # define MAXPATHLEN PATH_MAX
2605 # define MAXPATHLEN _POSIX_PATH_MAX
2608 # define MAXPATHLEN (PATH_MAX+1)
2611 # define MAXPATHLEN 1024 /* Err on the large side. */
2615 /* In case Configure was not used (we are using a "canned config"
2616 * such as Win32, or a cross-compilation setup, for example) try going
2617 * by the gcc major and minor versions. One useful URL is
2618 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2619 * but contrary to this information warn_unused_result seems
2620 * not to be in gcc 3.3.5, at least. --jhi
2621 * Also, when building extensions with an installed perl, this allows
2622 * the user to upgrade gcc and get the right attributes, rather than
2623 * relying on the list generated at Configure time. --AD
2624 * Set these up now otherwise we get confused when some of the <*thread.h>
2625 * includes below indirectly pull in <perlio.h> (which needs to know if we
2626 * have HASATTRIBUTE_FORMAT).
2630 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
2631 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2632 # define HASATTRIBUTE_DEPRECATED
2634 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2635 # define HASATTRIBUTE_FORMAT
2636 # if defined __MINGW32__
2637 # define PRINTF_FORMAT_NULL_OK
2640 # if __GNUC__ >= 3 /* 3.0 -> */
2641 # define HASATTRIBUTE_MALLOC
2643 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2644 # define HASATTRIBUTE_NONNULL
2646 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2647 # define HASATTRIBUTE_NORETURN
2649 # if __GNUC__ >= 3 /* gcc 3.0 -> */
2650 # define HASATTRIBUTE_PURE
2652 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2653 # define HASATTRIBUTE_UNUSED
2655 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2656 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2658 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2659 # define HASATTRIBUTE_WARN_UNUSED_RESULT
2662 #endif /* #ifndef PERL_MICRO */
2664 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
2665 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
2666 * this results in many functions being undeclared which bothers C++
2667 * May make sense to have threads after "*ish.h" anyway
2670 /* clang Thread Safety Analysis/Annotations/Attributes
2671 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2673 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
2674 * Apple XCode hijacks __clang_major__ and __clang_minor__
2675 * (6.1 means really clang 3.6), so needs extra hijinks
2676 * (could probably also test the contents of __apple_build_version__).
2678 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
2679 defined(__clang__) && \
2680 !defined(PERL_GLOBAL_STRUCT) && \
2681 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
2683 ((!defined(__apple_build_version__) && \
2684 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
2685 (__clang_major__ >= 4))) || \
2686 (defined(__apple_build_version__) && \
2687 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
2688 (__clang_major__ >= 7))))
2689 # define PERL_TSA__(x) __attribute__((x))
2690 # define PERL_TSA_ACTIVE
2692 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
2693 # undef PERL_TSA_ACTIVE
2696 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
2697 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
2699 #define PERL_TSA_CAPABILITY(x) \
2700 PERL_TSA__(capability(x))
2702 /* In the below examples the mutex must be lexically visible, usually
2703 * either as global variables, or as function arguments. */
2705 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
2707 * Foo foo PERL_TSA_GUARDED_BY(mutex);
2709 #define PERL_TSA_GUARDED_BY(x) \
2710 PERL_TSA__(guarded_by(x))
2712 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
2713 * The data _behind_ the pointer is guarded.
2715 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
2717 #define PERL_TSA_PT_GUARDED_BY(x) \
2718 PERL_TSA__(pt_guarded_by(x))
2720 /* PERL_TSA_REQUIRES() is used to annotate functions.
2721 * The caller MUST hold the resource when calling the function.
2723 * void Foo() PERL_TSA_REQUIRES(mutex);
2725 #define PERL_TSA_REQUIRES(x) \
2726 PERL_TSA__(requires_capability(x))
2728 /* PERL_TSA_EXCLUDES() is used to annotate functions.
2729 * The caller MUST NOT hold resource when calling the function.
2731 * EXCLUDES should be used when the function first acquires
2732 * the resource and then releases it. Use to avoid deadlock.
2734 * void Foo() PERL_TSA_EXCLUDES(mutex);
2736 #define PERL_TSA_EXCLUDES(x) \
2737 PERL_TSA__(locks_excluded(x))
2739 /* PERL_TSA_ACQUIRE() is used to annotate functions.
2740 * The caller MUST NOT hold the resource when calling the function,
2741 * and the function will acquire the resource.
2743 * void Foo() PERL_TSA_ACQUIRE(mutex);
2745 #define PERL_TSA_ACQUIRE(x) \
2746 PERL_TSA__(acquire_capability(x))
2748 /* PERL_TSA_RELEASE() is used to annotate functions.
2749 * The caller MUST hold the resource when calling the function,
2750 * and the function will release the resource.
2752 * void Foo() PERL_TSA_RELEASE(mutex);
2754 #define PERL_TSA_RELEASE(x) \
2755 PERL_TSA__(release_capability(x))
2757 /* PERL_TSA_NO_TSA is used to annotate functions.
2758 * Used when being intentionally unsafe, or when the code is too
2759 * complicated for the analysis. Use sparingly.
2761 * void Foo() PERL_TSA_NO_TSA;
2763 #define PERL_TSA_NO_TSA \
2764 PERL_TSA__(no_thread_safety_analysis)
2766 /* There are more annotations/attributes available, see the clang
2767 * documentation for details. */
2769 #if defined(USE_ITHREADS)
2771 # include <nw5thread.h>
2772 # elif defined(WIN32)
2773 # include <win32thread.h>
2775 # include "os2thread.h"
2776 # elif defined(I_MACH_CTHREADS)
2777 # include <mach/cthreads.h>
2778 typedef cthread_t perl_os_thread;
2779 typedef mutex_t perl_mutex;
2780 typedef condition_t perl_cond;
2781 typedef void * perl_key;
2782 # elif defined(I_PTHREAD) /* Posix threads */
2783 # include <pthread.h>
2784 typedef pthread_t perl_os_thread;
2785 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
2786 typedef pthread_cond_t perl_cond;
2787 typedef pthread_key_t perl_key;
2789 #endif /* USE_ITHREADS */
2791 #ifdef PERL_TSA_ACTIVE
2792 /* Since most pthread mutex interfaces have not been annotated, we
2793 * need to have these wrappers. The NO_TSA annotation is quite ugly
2794 * but it cannot be avoided in plain C, unlike in C++, where one could
2795 * e.g. use ACQUIRE() with no arg on a mutex lock method.
2797 * The bodies of these wrappers are in util.c
2799 * TODO: however, some platforms are starting to get these clang
2800 * thread safety annotations for pthreads, for example FreeBSD.
2801 * Do we need a way to a bypass these wrappers? */
2802 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
2803 PERL_TSA_ACQUIRE(*mutex)
2805 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
2806 PERL_TSA_RELEASE(*mutex)
2815 # include "netware.h"
2818 #define STATUS_UNIX PL_statusvalue
2820 # define STATUS_NATIVE PL_statusvalue_vms
2822 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
2823 * its contents can not be trusted. Unfortunately, Perl seems to check
2824 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2827 # include <stsdef.h>
2829 /* Presume this because if VMS changes it, it will require a new
2830 * set of APIs for waiting on children for binary compatibility.
2832 # define child_offset_bits (8)
2833 # ifndef C_FAC_POSIX
2834 # define C_FAC_POSIX 0x35A000
2837 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2838 * platform from the existing UNIX or Native status values.
2841 # define STATUS_EXIT \
2842 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2843 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2846 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2847 * exit code and shifts the UNIX value over the correct number of bits to
2848 * be a child status. Usually the number of bits is 8, but that could be
2849 * platform dependent. The NATIVE status code is presumed to have either
2850 * from a child process.
2853 /* This is complicated. The child processes return a true native VMS
2854 status which must be saved. But there is an assumption in Perl that
2855 the UNIX child status has some relationship to errno values, so
2856 Perl tries to translate it to text in some of the tests.
2857 In order to get the string translation correct, for the error, errno
2858 must be EVMSERR, but that generates a different text message
2859 than what the test programs are expecting. So an errno value must
2860 be derived from the native status value when an error occurs.
2861 That will hide the true native status message. With this version of
2862 perl, the true native child status can always be retrieved so that
2863 is not a problem. But in this case, Pl_statusvalue and errno may
2864 have different values in them.
2867 # define STATUS_NATIVE_CHILD_SET(n) \
2869 I32 evalue = (I32)n; \
2870 if (evalue == EVMSERR) { \
2871 PL_statusvalue_vms = vaxc$errno; \
2872 PL_statusvalue = evalue; \
2874 PL_statusvalue_vms = evalue; \
2875 if (evalue == -1) { \
2876 PL_statusvalue = -1; \
2877 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2879 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2880 set_vaxc_errno(evalue); \
2881 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
2882 set_errno(EVMSERR); \
2883 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
2884 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2888 # ifdef VMSISH_STATUS
2889 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
2891 # define STATUS_CURRENT STATUS_UNIX
2894 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2895 * the NATIVE status to an equivalent value. Can not be used to translate
2896 * exit code values as exit code values are not guaranteed to have any
2897 * relationship at all to errno values.
2898 * This is used when Perl is forcing errno to have a specific value.
2900 # define STATUS_UNIX_SET(n) \
2902 I32 evalue = (I32)n; \
2903 PL_statusvalue = evalue; \
2904 if (PL_statusvalue != -1) { \
2905 if (PL_statusvalue != EVMSERR) { \
2906 PL_statusvalue &= 0xFFFF; \
2907 if (MY_POSIX_EXIT) \
2908 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2909 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2912 PL_statusvalue_vms = vaxc$errno; \
2915 else PL_statusvalue_vms = SS$_ABORT; \
2916 set_vaxc_errno(PL_statusvalue_vms); \
2919 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
2920 * the NATIVE error status based on it.
2922 * When in the default mode to comply with the Perl VMS documentation,
2923 * 0 is a success and any other code sets the NATIVE status to a failure
2924 * code of SS$_ABORT.
2926 * In the new POSIX EXIT mode, native status will be set so that the
2927 * actual exit code will can be retrieved by the calling program or
2930 * If the exit code is not clearly a UNIX parent or child exit status,
2931 * it will be passed through as a VMS status.
2934 # define STATUS_UNIX_EXIT_SET(n) \
2936 I32 evalue = (I32)n; \
2937 PL_statusvalue = evalue; \
2938 if (MY_POSIX_EXIT) { \
2939 if (evalue <= 0xFF00) { \
2940 if (evalue > 0xFF) \
2941 evalue = (evalue >> child_offset_bits) & 0xFF; \
2942 PL_statusvalue_vms = \
2943 (C_FAC_POSIX | (evalue << 3 ) | \
2944 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
2945 } else /* forgive them Perl, for they have sinned */ \
2946 PL_statusvalue_vms = evalue; \
2949 PL_statusvalue_vms = SS$_NORMAL; \
2950 else if (evalue <= 0xFF00) \
2951 PL_statusvalue_vms = SS$_ABORT; \
2952 else { /* forgive them Perl, for they have sinned */ \
2953 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
2954 else PL_statusvalue_vms = vaxc$errno; \
2955 /* And obviously used a VMS status value instead of UNIX */ \
2956 PL_statusvalue = EVMSERR; \
2958 set_vaxc_errno(PL_statusvalue_vms); \
2963 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
2964 * and sets the NATIVE error status based on it. This special case
2965 * is needed to maintain compatibility with past VMS behavior.
2967 * In the default mode on VMS, this number is passed through as
2968 * both the NATIVE and UNIX status. Which makes it different
2969 * that the STATUS_UNIX_EXIT_SET.
2971 * In the new POSIX EXIT mode, native status will be set so that the
2972 * actual exit code will can be retrieved by the calling program or
2975 * A POSIX exit code is from 0 to 255. If the exit code is higher
2976 * than this, it needs to be assumed that it is a VMS exit code and
2980 # define STATUS_EXIT_SET(n) \
2982 I32 evalue = (I32)n; \
2983 PL_statusvalue = evalue; \
2984 if (MY_POSIX_EXIT) \
2985 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
2986 PL_statusvalue_vms = \
2987 (C_FAC_POSIX | (evalue << 3 ) | \
2988 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
2990 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
2991 set_vaxc_errno(PL_statusvalue_vms); \
2995 /* This macro forces a success status */
2996 # define STATUS_ALL_SUCCESS \
2997 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
2999 /* This macro forces a failure status */
3000 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3001 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3002 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3004 #elif defined(__amigaos4__)
3005 /* A somewhat experimental attempt to simulate posix return code values */
3006 # define STATUS_NATIVE PL_statusvalue_posix
3007 # define STATUS_NATIVE_CHILD_SET(n) \
3009 PL_statusvalue_posix = (n); \
3010 if (PL_statusvalue_posix < 0) { \
3011 PL_statusvalue = -1; \
3014 PL_statusvalue = n << 8; \
3017 # define STATUS_UNIX_SET(n) \
3019 PL_statusvalue = (n); \
3020 if (PL_statusvalue != -1) \
3021 PL_statusvalue &= 0xFFFF; \
3023 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3024 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3025 # define STATUS_CURRENT STATUS_UNIX
3026 # define STATUS_EXIT STATUS_UNIX
3027 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3028 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3031 # define STATUS_NATIVE PL_statusvalue_posix
3032 # if defined(WCOREDUMP)
3033 # define STATUS_NATIVE_CHILD_SET(n) \
3035 PL_statusvalue_posix = (n); \
3036 if (PL_statusvalue_posix == -1) \
3037 PL_statusvalue = -1; \
3040 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3041 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3042 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3045 # elif defined(WIFEXITED)
3046 # define STATUS_NATIVE_CHILD_SET(n) \
3048 PL_statusvalue_posix = (n); \
3049 if (PL_statusvalue_posix == -1) \
3050 PL_statusvalue = -1; \
3053 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3054 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3058 # define STATUS_NATIVE_CHILD_SET(n) \
3060 PL_statusvalue_posix = (n); \
3061 if (PL_statusvalue_posix == -1) \
3062 PL_statusvalue = -1; \
3065 PL_statusvalue_posix & 0xFFFF; \
3069 # define STATUS_UNIX_SET(n) \
3071 PL_statusvalue = (n); \
3072 if (PL_statusvalue != -1) \
3073 PL_statusvalue &= 0xFFFF; \
3075 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3076 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3077 # define STATUS_CURRENT STATUS_UNIX
3078 # define STATUS_EXIT STATUS_UNIX
3079 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3080 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3083 /* flags in PL_exit_flags for nature of exit() */
3084 #define PERL_EXIT_EXPECTED 0x01
3085 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3086 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3087 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3090 /* format to use for version numbers in file/directory names */
3091 /* XXX move to Configure? */
3092 /* This was only ever used for the current version, and that can be done at
3093 compile time, as PERL_FS_VERSION, so should we just delete it? */
3094 # ifndef PERL_FS_VER_FMT
3095 # define PERL_FS_VER_FMT "%d.%d.%d"
3099 #ifndef PERL_FS_VERSION
3100 # define PERL_FS_VERSION PERL_VERSION_STRING
3103 /* This defines a way to flush all output buffers. This may be a
3104 * performance issue, so we allow people to disable it. Also, if
3105 * we are using stdio, there are broken implementations of fflush(NULL)
3106 * out there, Solaris being the most prominent.
3108 #ifndef PERL_FLUSHALL_FOR_CHILD
3109 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3110 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3111 # elif defined(FFLUSH_ALL)
3112 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3114 # define PERL_FLUSHALL_FOR_CHILD NOOP
3118 #ifndef PERL_WAIT_FOR_CHILDREN
3119 # define PERL_WAIT_FOR_CHILDREN NOOP
3122 /* the traditional thread-unsafe notion of "current interpreter". */
3123 #ifndef PERL_SET_INTERP
3124 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3127 #ifndef PERL_GET_INTERP
3128 # define PERL_GET_INTERP (PL_curinterp)
3131 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3132 # ifdef MULTIPLICITY
3133 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3135 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3139 This replaces the previous %_ "hack" by the "%p" hacks.
3140 All that is required is that the perl source does not
3141 use "%-p" or "%-<number>p" or "%<number>p" formats.
3142 These formats will still work in perl code.
3143 See comments in sv.c for further details.
3145 Robin Barker 2005-07-14
3147 No longer use %1p for VDf = %vd. RMB 2007-10-19
3151 # define SVf_(n) "-" STRINGIFY(n) "p"
3159 # define SVf32 SVf_(32)
3163 # define SVf256 SVf_(256)
3166 #define SVfARG(p) ((void*)(p))
3172 /* Not ideal, but we cannot easily include a number in an already-numeric
3173 * format sequence. */
3175 # define HEKf256 "3p"
3178 #define HEKfARG(p) ((void*)(p))
3180 /* Takes three arguments: is_utf8, length, str */
3182 # define UTF8f "d%" UVuf "%4p"
3184 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3187 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3190 /* not used; but needed for backward compatibility with XS code? - RMB */
3196 #ifdef HASATTRIBUTE_DEPRECATED
3197 # define __attribute__deprecated__ __attribute__((deprecated))
3199 #ifdef HASATTRIBUTE_FORMAT
3200 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3202 #ifdef HASATTRIBUTE_MALLOC
3203 # define __attribute__malloc__ __attribute__((__malloc__))
3205 #ifdef HASATTRIBUTE_NONNULL
3206 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
3208 #ifdef HASATTRIBUTE_NORETURN
3209 # define __attribute__noreturn__ __attribute__((noreturn))
3211 #ifdef HASATTRIBUTE_PURE
3212 # define __attribute__pure__ __attribute__((pure))
3214 #ifdef HASATTRIBUTE_UNUSED
3215 # define __attribute__unused__ __attribute__((unused))
3217 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
3218 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
3221 /* If we haven't defined the attributes yet, define them to blank. */
3222 #ifndef __attribute__deprecated__
3223 # define __attribute__deprecated__
3225 #ifndef __attribute__format__
3226 # define __attribute__format__(x,y,z)
3228 #ifndef __attribute__malloc__
3229 # define __attribute__malloc__
3231 #ifndef __attribute__nonnull__
3232 # define __attribute__nonnull__(a)
3234 #ifndef __attribute__noreturn__
3235 # define __attribute__noreturn__
3237 #ifndef __attribute__pure__
3238 # define __attribute__pure__
3240 #ifndef __attribute__unused__
3241 # define __attribute__unused__
3243 #ifndef __attribute__warn_unused_result__
3244 # define __attribute__warn_unused_result__
3247 #if !defined(DEBUGGING) && !defined(NDEBUG)
3252 /* For functions that are marked as __attribute__noreturn__, it's not
3253 appropriate to call return. In either case, include the lint directive.
3255 #ifdef HASATTRIBUTE_NORETURN
3256 # define NORETURN_FUNCTION_END NOT_REACHED;
3258 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3261 /* Some OS warn on NULL format to printf */
3262 #ifdef PRINTF_FORMAT_NULL_OK
3263 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3265 # define __attribute__format__null_ok__(x,y,z)
3268 #ifdef HAS_BUILTIN_EXPECT
3269 # define EXPECT(expr,val) __builtin_expect(expr,val)
3271 # define EXPECT(expr,val) (expr)
3273 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3274 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3275 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3279 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3280 time invariants. That is, their argument must be a constant expression that
3281 can be verified by the compiler. This expression can contain anything that's
3282 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3283 the expression evaluates to 0, compilation fails.
3284 Because they generate no runtime code (i.e. their use is "free"), they're
3285 always active, even under non-DEBUGGING builds.
3286 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3287 file scope (outside of any function).
3288 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3291 #if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
3292 /* static_assert is a macro defined in <assert.h> in C11 or a compiler
3293 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3294 matter what <assert.h> says.
3296 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3298 /* We use a bit-field instead of an array because gcc accepts
3299 'typedef char x[n]' where n is not a compile-time constant.
3300 We want to enforce constantness.
3302 # define STATIC_ASSERT_2(COND, SUFFIX) \
3304 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3305 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3306 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3307 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3309 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3310 error (static_assert is a declaration, and only statements can have labels).
3312 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3314 #ifndef __has_builtin
3315 # define __has_builtin(x) 0 /* not a clang style compiler */
3318 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3319 hint to a compiler about a statement of fact in a function call free
3320 expression, which allows the compiler to generate better machine code.
3321 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3322 the control path is unreachable. In a for loop, ASSUME can be used to hint
3323 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3324 intrinsic function, see its documents for more details.
3328 # if __has_builtin(__builtin_unreachable) \
3329 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3330 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3331 # elif defined(_MSC_VER)
3332 # define ASSUME(x) __assume(x)
3333 # elif defined(__ARMCC_VERSION) /* untested */
3334 # define ASSUME(x) __promise(x)
3336 /* a random compiler might define assert to its own special optimization token
3337 so pass it through to C lib as a last resort */
3338 # define ASSUME(x) assert(x)
3341 # define ASSUME(x) assert(x)
3344 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3345 # define NOT_REACHED
3346 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3347 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3348 # define NOT_REACHED STMT_START { ASSUME(0); __builtin_unreachable(); } STMT_END
3350 # define NOT_REACHED ASSUME(0)
3353 /* Some unistd.h's give a prototype for pause() even though
3354 HAS_PAUSE ends up undefined. This causes the #define
3355 below to be rejected by the compiler. Sigh.
3360 #define Pause() sleep((32767<<16)+32767)
3364 # ifdef IOCPARM_MASK
3365 /* on BSDish systems we're safe */
3366 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3367 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3368 /* on Linux systems we're safe; except when we're not [perl #38223] */
3369 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3371 /* otherwise guess at what's safe */
3372 # define IOCPARM_LEN(x) 256
3376 #if defined(__CYGWIN__)
3378 * This symbol, if defined, indicates that the program should
3379 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3380 * that a file is in "binary" mode -- that is, that no translation
3381 * of bytes occurs on read or write operations.
3383 # define USEMYBINMODE /**/
3384 # include <io.h> /* for setmode() prototype */
3385 # define my_binmode(fp, iotype, mode) \
3386 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3390 void init_os_extras(void);
3393 #ifdef UNION_ANY_DEFINITION
3394 UNION_ANY_DEFINITION;
3412 void (*any_dptr) (void*);
3413 void (*any_dxptr) (pTHX_ void*);
3417 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3419 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3420 #define FILTER_DATA(idx) \
3421 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3422 #define FILTER_ISREADER(idx) \
3423 (PL_parser && PL_parser->rsfp_filters \
3424 && idx >= AvFILLp(PL_parser->rsfp_filters))
3425 #define PERL_FILTER_EXISTS(i) \
3426 (PL_parser && PL_parser->rsfp_filters \
3427 && (i) <= av_tindex(PL_parser->rsfp_filters))
3429 #if defined(_AIX) && !defined(_AIX43)
3430 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3431 /* We cannot include <crypt.h> to get the struct crypt_data
3432 * because of setkey prototype problems when threading */
3433 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3434 /* From OSF, Not needed in AIX
3442 #endif /* threading */
3445 #ifndef PERL_CALLCONV
3447 # define PERL_CALLCONV extern "C"
3449 # define PERL_CALLCONV
3452 #ifndef PERL_CALLCONV_NO_RET
3453 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3456 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3457 dont have a noreturn as a declaration specifier
3459 #ifndef PERL_STATIC_NO_RET
3460 # define PERL_STATIC_NO_RET STATIC
3462 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3463 builds that dont have a noreturn as a declaration specifier
3465 #ifndef PERL_STATIC_INLINE_NO_RET
3466 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3470 # include "iperlsys.h"
3473 #ifdef __LIBCATAMOUNT__
3474 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3476 #define FAKE_BIT_BUCKET
3479 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3480 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3481 * Configure, despite their names being similar to other defines like
3482 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3483 * hashes. Therefore to enable/disable the hash randomisation defines
3484 * use the Configure -Accflags=... instead. */
3485 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3486 # define USE_HASH_SEED
3492 /* macros to define bit-fields in structs. */
3493 #ifndef PERL_BITFIELD8
3494 # define PERL_BITFIELD8 unsigned
3496 #ifndef PERL_BITFIELD16
3497 # define PERL_BITFIELD16 unsigned
3499 #ifndef PERL_BITFIELD32
3500 # define PERL_BITFIELD32 unsigned
3510 #include "opnames.h"
3517 #include "warnings.h"
3520 /* these would be in doio.h if there was such a file */
3521 #define my_stat() my_stat_flags(SV_GMAGIC)
3522 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3524 /* defined in sv.c, but also used in [ach]v.c */
3527 #undef _XPVCV_COMMON
3531 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3533 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3535 /* These have to be predeclared, as they are used in proto.h which is #included
3536 * before their definitions in regcomp.h. */
3539 typedef struct regnode_charclass regnode_charclass;
3541 struct regnode_charclass_class;
3543 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3544 * used under /l matching */
3545 typedef struct regnode_charclass_class regnode_charclass_posixl;
3547 typedef struct regnode_ssc regnode_ssc;
3548 typedef struct RExC_state_t RExC_state_t;
3549 struct _reg_trie_data;
3553 struct ptr_tbl_ent {
3554 struct ptr_tbl_ent* next;
3560 struct ptr_tbl_ent** tbl_ary;
3563 struct ptr_tbl_arena *tbl_arena;
3564 struct ptr_tbl_ent *tbl_arena_next;
3565 struct ptr_tbl_ent *tbl_arena_end;
3568 #if defined(htonl) && !defined(HAS_HTONL)
3571 #if defined(htons) && !defined(HAS_HTONS)
3574 #if defined(ntohl) && !defined(HAS_NTOHL)
3577 #if defined(ntohs) && !defined(HAS_NTOHS)
3585 # if (BYTEORDER & 0xffff) == 0x4321
3586 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3587 re-order their values. However, to behave identically to the alternative
3588 implementations, they should truncate to the correct size. */
3589 # define ntohl(x) ((x)&0xFFFFFFFF)
3590 # define htonl(x) ntohl(x)
3591 # define ntohs(x) ((x)&0xFFFF)
3592 # define htons(x) ntohs(x)
3593 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3595 /* Note that we can't straight out declare our own htonl and htons because
3596 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3597 to avoid the overhead of initialising the socket subsystem, but the headers
3598 that *declare* the various functions are still seen. If we declare our own
3599 htonl etc they will clash with the declarations in the Win32 headers. */
3601 PERL_STATIC_INLINE U32
3602 my_swap32(const U32 x) {
3603 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3604 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3607 PERL_STATIC_INLINE U16
3608 my_swap16(const U16 x) {
3609 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3612 # define htonl(x) my_swap32(x)
3613 # define ntohl(x) my_swap32(x)
3614 # define ntohs(x) my_swap16(x)
3615 # define htons(x) my_swap16(x)
3617 # error "Unsupported byteorder"
3618 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3619 the error message. Please check the value of the macro BYTEORDER, as defined
3620 in config.h. The values of BYTEORDER we expect are
3622 big endian little endian
3623 32 bit 0x4321 0x1234
3624 64 bit 0x87654321 0x12345678
3626 If you have a system with a different byte order, please see
3627 pod/perlhack.pod for how to submit a patch to add supporting code.
3633 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3636 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3637 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3638 re-order their values. However, to behave identically to the alternative
3639 implementations, they should truncate to the correct size. */
3640 # define vtohl(x) ((x)&0xFFFFFFFF)
3641 # define vtohs(x) ((x)&0xFFFF)
3642 # define htovl(x) vtohl(x)
3643 # define htovs(x) vtohs(x)
3644 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3645 # define vtohl(x) ((((x)&0xFF)<<24) \
3647 +(((x)&0x0000FF00)<<8) \
3648 +(((x)&0x00FF0000)>>8) )
3649 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3650 # define htovl(x) vtohl(x)
3651 # define htovs(x) vtohs(x)
3653 # error "Unsupported byteorder"
3654 /* If you have need for current perl on PDP-11 or similar, and can help test
3655 that blead keeps working on a mixed-endian system, then see
3656 pod/perlhack.pod for how to submit patches to things working again. */
3659 /* *MAX Plus 1. A floating point value.
3660 Hopefully expressed in a way that dodgy floating point can't mess up.
3661 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3663 May find that some broken compiler will want the value cast to I32.
3664 [after the shift, as signed >> may not be as secure as unsigned >>]
3666 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3667 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3668 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3669 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3670 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3672 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
3674 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3675 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3676 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3678 /* This may look like unnecessary jumping through hoops, but converting
3679 out of range floating point values to integers *is* undefined behaviour,
3680 and it is starting to bite.
3683 #define I_32(what) (cast_i32((NV)(what)))
3684 #define U_32(what) (cast_ulong((NV)(what)))
3685 #define I_V(what) (cast_iv((NV)(what)))
3686 #define U_V(what) (cast_uv((NV)(what)))
3688 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3689 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3690 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3691 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3692 : ((n) < U32_MAX_P1 ? (U32) (n) \
3693 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3694 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3695 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3696 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3697 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3698 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3699 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3702 #define U_S(what) ((U16)U_32(what))
3703 #define U_I(what) ((unsigned int)U_32(what))
3704 #define U_L(what) U_32(what)
3707 # define Perl_signbit signbit
3710 /* These do not care about the fractional part, only about the range. */
3711 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
3712 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
3714 /* Used with UV/IV arguments: */
3715 /* XXXX: need to speed it up */
3716 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3717 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3724 #if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
3725 Uid_t getuid (void);
3726 Uid_t geteuid (void);
3727 Gid_t getgid (void);
3728 Gid_t getegid (void);
3732 #ifndef Perl_debug_log
3733 # define Perl_debug_log PerlIO_stderr()
3736 #ifndef Perl_error_log
3737 # define Perl_error_log (PL_stderrgv \
3738 && isGV(PL_stderrgv) \
3739 && GvIOp(PL_stderrgv) \
3740 && IoOFP(GvIOp(PL_stderrgv)) \
3741 ? IoOFP(GvIOp(PL_stderrgv)) \
3746 #define DEBUG_p_FLAG 0x00000001 /* 1 */
3747 #define DEBUG_s_FLAG 0x00000002 /* 2 */
3748 #define DEBUG_l_FLAG 0x00000004 /* 4 */
3749 #define DEBUG_t_FLAG 0x00000008 /* 8 */
3750 #define DEBUG_o_FLAG 0x00000010 /* 16 */
3751 #define DEBUG_c_FLAG 0x00000020 /* 32 */
3752 #define DEBUG_P_FLAG 0x00000040 /* 64 */
3753 #define DEBUG_m_FLAG 0x00000080 /* 128 */
3754 #define DEBUG_f_FLAG 0x00000100 /* 256 */
3755 #define DEBUG_r_FLAG 0x00000200 /* 512 */
3756 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
3757 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
3758 /* U is reserved for Unofficial, exploratory hacking */
3759 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
3761 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
3762 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
3763 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
3764 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
3765 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
3766 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
3767 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
3768 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
3769 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
3770 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
3771 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
3772 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
3773 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
3774 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
3775 #define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */
3777 #define DEBUG_DB_RECURSE_FLAG 0x40000000
3778 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
3780 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
3781 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
3782 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
3783 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
3784 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
3785 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
3786 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
3787 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
3788 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
3789 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
3790 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
3791 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
3792 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
3793 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
3794 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
3795 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
3796 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
3797 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
3798 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
3799 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
3800 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
3801 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
3802 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
3803 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
3804 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
3805 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
3806 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
3807 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
3808 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
3809 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
3810 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
3814 # define DEBUG_p_TEST DEBUG_p_TEST_
3815 # define DEBUG_s_TEST DEBUG_s_TEST_
3816 # define DEBUG_l_TEST DEBUG_l_TEST_
3817 # define DEBUG_t_TEST DEBUG_t_TEST_
3818 # define DEBUG_o_TEST DEBUG_o_TEST_
3819 # define DEBUG_c_TEST DEBUG_c_TEST_
3820 # define DEBUG_P_TEST DEBUG_P_TEST_
3821 # define DEBUG_m_TEST DEBUG_m_TEST_
3822 # define DEBUG_f_TEST DEBUG_f_TEST_
3823 # define DEBUG_r_TEST DEBUG_r_TEST_
3824 # define DEBUG_x_TEST DEBUG_x_TEST_
3825 # define DEBUG_u_TEST DEBUG_u_TEST_
3826 # define DEBUG_U_TEST DEBUG_U_TEST_
3827 # define DEBUG_X_TEST DEBUG_X_TEST_
3828 # define DEBUG_D_TEST DEBUG_D_TEST_
3829 # define DEBUG_S_TEST DEBUG_S_TEST_
3830 # define DEBUG_T_TEST DEBUG_T_TEST_
3831 # define DEBUG_R_TEST DEBUG_R_TEST_
3832 # define DEBUG_J_TEST DEBUG_J_TEST_
3833 # define DEBUG_v_TEST DEBUG_v_TEST_
3834 # define DEBUG_C_TEST DEBUG_C_TEST_
3835 # define DEBUG_A_TEST DEBUG_A_TEST_
3836 # define DEBUG_q_TEST DEBUG_q_TEST_
3837 # define DEBUG_M_TEST DEBUG_M_TEST_
3838 # define DEBUG_B_TEST DEBUG_B_TEST_
3839 # define DEBUG_L_TEST DEBUG_L_TEST_
3840 # define DEBUG_i_TEST DEBUG_i_TEST_
3841 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
3842 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
3843 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
3844 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
3846 # define PERL_DEB(a) a
3847 # define PERL_DEB2(a,b) a
3848 # define PERL_DEBUG(a) if (PL_debug) a
3849 # define DEBUG_p(a) if (DEBUG_p_TEST) a
3850 # define DEBUG_s(a) if (DEBUG_s_TEST) a
3851 # define DEBUG_l(a) if (DEBUG_l_TEST) a
3852 # define DEBUG_t(a) if (DEBUG_t_TEST) a
3853 # define DEBUG_o(a) if (DEBUG_o_TEST) a
3854 # define DEBUG_c(a) if (DEBUG_c_TEST) a
3855 # define DEBUG_P(a) if (DEBUG_P_TEST) a
3857 /* Temporarily turn off memory debugging in case the a
3858 * does memory allocation, either directly or indirectly. */
3859 # define DEBUG_m(a) \
3861 if (PERL_GET_INTERP) { \
3863 if (DEBUG_m_TEST) { \
3864 PL_debug &= ~DEBUG_m_FLAG; \
3866 PL_debug |= DEBUG_m_FLAG; \
3871 # define DEBUG__(t, a) \
3873 if (t) STMT_START {a;} STMT_END; \
3876 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
3878 #ifndef PERL_EXT_RE_BUILD
3879 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
3881 # define DEBUG_r(a) STMT_START {a;} STMT_END
3882 #endif /* PERL_EXT_RE_BUILD */
3884 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
3885 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
3886 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
3887 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
3888 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
3889 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
3890 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
3891 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
3892 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
3894 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
3895 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
3896 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
3897 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
3898 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
3899 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
3900 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
3901 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
3902 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
3903 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
3904 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
3906 #else /* DEBUGGING */
3908 # define DEBUG_p_TEST (0)
3909 # define DEBUG_s_TEST (0)
3910 # define DEBUG_l_TEST (0)
3911 # define DEBUG_t_TEST (0)
3912 # define DEBUG_o_TEST (0)
3913 # define DEBUG_c_TEST (0)
3914 # define DEBUG_P_TEST (0)
3915 # define DEBUG_m_TEST (0)
3916 # define DEBUG_f_TEST (0)
3917 # define DEBUG_r_TEST (0)
3918 # define DEBUG_x_TEST (0)
3919 # define DEBUG_u_TEST (0)
3920 # define DEBUG_U_TEST (0)
3921 # define DEBUG_X_TEST (0)
3922 # define DEBUG_D_TEST (0)
3923 # define DEBUG_S_TEST (0)
3924 # define DEBUG_T_TEST (0)
3925 # define DEBUG_R_TEST (0)
3926 # define DEBUG_J_TEST (0)
3927 # define DEBUG_v_TEST (0)
3928 # define DEBUG_C_TEST (0)
3929 # define DEBUG_A_TEST (0)
3930 # define DEBUG_q_TEST (0)
3931 # define DEBUG_M_TEST (0)
3932 # define DEBUG_B_TEST (0)
3933 # define DEBUG_L_TEST (0)
3934 # define DEBUG_i_TEST (0)
3935 # define DEBUG_Xv_TEST (0)
3936 # define DEBUG_Uv_TEST (0)
3937 # define DEBUG_Pv_TEST (0)
3938 # define DEBUG_Lv_TEST (0)
3940 # define PERL_DEB(a)
3941 # define PERL_DEB2(a,b) b
3942 # define PERL_DEBUG(a)
3969 # define DEBUG_Xv(a)
3970 # define DEBUG_Uv(a)
3971 # define DEBUG_Pv(a)
3972 # define DEBUG_Lv(a)
3973 #endif /* DEBUGGING */
3976 #define DEBUG_SCOPE(where) \
3978 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
3979 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
3980 __FILE__, __LINE__));
3982 /* Keep the old croak based assert for those who want it, and as a fallback if
3983 the platform is so heretically non-ANSI that it can't assert. */
3985 #define Perl_assert(what) PERL_DEB2( \
3986 ((what) ? ((void) 0) : \
3987 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
3988 "\", line %d", STRINGIFY(what), __LINE__), \
3989 (void) 0)), ((void)0))
3991 /* assert() gets defined if DEBUGGING.
3992 * If no DEBUGGING, the <assert.h> has not been included. */
3994 # define assert(what) Perl_assert(what)
3997 # define assert_(what) assert(what),
3999 # define assert_(what)
4003 I32 (*uf_val)(pTHX_ IV, SV*);
4004 I32 (*uf_set)(pTHX_ IV, SV*);
4008 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4009 * XS code wanting to be backward compatible can do something
4010 * like the following:
4012 #ifndef PERL_MG_UFUNC
4013 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4016 static PERL_MG_UFUNC(foo_get, index, val)
4026 #ifndef PERL_MG_UFUNC
4027 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4032 /* isfinite and others are here rather than in math.h as C99 stipulates */
4037 # if !defined(WIN32) && !defined(VMS)
4039 char *crypt (const char*, const char*);
4041 # endif /* !WIN32 */
4044 char *getlogin (void);
4046 # endif /* !WIN32 */
4047 #endif /* !__cplusplus */
4049 /* Fixme on VMS. This needs to be a run-time, not build time options */
4050 /* Also rename() is affected by this */
4051 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4052 #define UNLINK unlnk
4053 I32 unlnk (pTHX_ const char*);
4055 #define UNLINK PerlLIO_unlink
4058 /* some versions of glibc are missing the setresuid() proto */
4059 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4060 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4062 /* some versions of glibc are missing the setresgid() proto */
4063 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4064 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4067 #ifndef HAS_SETREUID
4068 # ifdef HAS_SETRESUID
4069 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4070 # define HAS_SETREUID
4073 #ifndef HAS_SETREGID
4074 # ifdef HAS_SETRESGID
4075 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4076 # define HAS_SETREGID
4080 /* Sighandler_t defined in iperlsys.h */
4082 #ifdef HAS_SIGACTION
4083 typedef struct sigaction Sigsave_t;
4085 typedef Sighandler_t Sigsave_t;
4096 # define RUNOPS_DEFAULT Perl_runops_debug
4098 # define RUNOPS_DEFAULT Perl_runops_standard
4101 #if defined(USE_PERLIO)
4102 EXTERN_C void PerlIO_teardown(void);
4103 # ifdef USE_ITHREADS
4104 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4105 # define PERLIO_TERM \
4107 PerlIO_teardown(); \
4108 MUTEX_DESTROY(&PL_perlio_mutex);\
4111 # define PERLIO_INIT
4112 # define PERLIO_TERM PerlIO_teardown()
4115 # define PERLIO_INIT
4116 # define PERLIO_TERM
4120 # ifdef MUTEX_INIT_CALLS_MALLOC
4121 # define MALLOC_INIT \
4123 PL_malloc_mutex = NULL; \
4124 MUTEX_INIT(&PL_malloc_mutex); \
4126 # define MALLOC_TERM \
4128 perl_mutex tmp = PL_malloc_mutex; \
4129 PL_malloc_mutex = NULL; \
4130 MUTEX_DESTROY(&tmp); \
4133 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4134 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4137 # define MALLOC_INIT
4138 # define MALLOC_TERM
4141 #if defined(PERL_IMPLICIT_CONTEXT)
4143 struct perl_memory_debug_header;
4144 struct perl_memory_debug_header {
4146 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4149 struct perl_memory_debug_header *prev;
4150 struct perl_memory_debug_header *next;
4151 # ifdef PERL_DEBUG_READONLY_COW
4156 #elif defined(PERL_DEBUG_READONLY_COW)
4158 struct perl_memory_debug_header;
4159 struct perl_memory_debug_header {
4165 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4167 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4168 (sizeof(struct perl_memory_debug_header) + \
4169 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4170 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4173 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4176 #ifdef PERL_TRACK_MEMPOOL
4177 # ifdef PERL_DEBUG_READONLY_COW
4178 # define INIT_TRACK_MEMPOOL(header, interp) \
4180 (header).interpreter = (interp); \
4181 (header).prev = (header).next = &(header); \
4182 (header).readonly = 0; \
4185 # define INIT_TRACK_MEMPOOL(header, interp) \
4187 (header).interpreter = (interp); \
4188 (header).prev = (header).next = &(header); \
4192 # define INIT_TRACK_MEMPOOL(header, interp)
4195 #ifdef I_MALLOCMALLOC
4196 /* Needed for malloc_size(), malloc_good_size() on some systems */
4197 # include <malloc/malloc.h>
4201 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4203 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4204 # ifdef PERL_TRACK_MEMPOOL
4205 # define Perl_safesysmalloc_size(where) \
4206 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4208 # define Perl_safesysmalloc_size(where) malloc_size(where)
4211 # ifdef HAS_MALLOC_GOOD_SIZE
4212 # ifdef PERL_TRACK_MEMPOOL
4213 # define Perl_malloc_good_size(how_much) \
4214 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4216 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4219 /* Having this as the identity operation makes some code simpler. */
4220 # define Perl_malloc_good_size(how_much) (how_much)
4224 typedef int (*runops_proc_t)(pTHX);
4225 typedef void (*share_proc_t) (pTHX_ SV *sv);
4226 typedef int (*thrhook_proc_t) (pTHX);
4227 typedef OP* (*PPADDR_t[]) (pTHX);
4228 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4229 typedef void (*despatch_signals_proc_t) (pTHX);
4231 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4232 # include <crt_externs.h> /* for the env array */
4233 # define environ (*_NSGetEnviron())
4234 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4235 /* VMS and some other platforms don't use the environ array */
4236 EXTERN_C char **environ; /* environment variables supplied via exec */
4239 #define PERL_PATCHLEVEL_H_IMPLICIT
4240 #include "patchlevel.h"
4241 #undef PERL_PATCHLEVEL_H_IMPLICIT
4243 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4244 STRINGIFY(PERL_VERSION) "." \
4245 STRINGIFY(PERL_SUBVERSION)
4247 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4248 STRINGIFY(PERL_API_VERSION) "." \
4249 STRINGIFY(PERL_API_SUBVERSION)
4253 /* handy constants */
4254 EXTCONST char PL_warn_uninit[]
4255 INIT("Use of uninitialized value%s%s%s");
4256 EXTCONST char PL_warn_uninit_sv[]
4257 INIT("Use of uninitialized value%" SVf "%s%s");
4258 EXTCONST char PL_warn_nosemi[]
4259 INIT("Semicolon seems to be missing");
4260 EXTCONST char PL_warn_reserved[]
4261 INIT("Unquoted string \"%s\" may clash with future reserved word");
4262 EXTCONST char PL_warn_nl[]
4263 INIT("Unsuccessful %s on filename containing newline");
4264 EXTCONST char PL_no_wrongref[]
4265 INIT("Can't use %s ref as %s ref");
4266 /* The core no longer needs this here. If you require the string constant,
4267 please inline a copy into your own code. */
4268 EXTCONST char PL_no_symref[] __attribute__deprecated__
4269 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4270 EXTCONST char PL_no_symref_sv[]
4271 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4273 EXTCONST char PL_no_usym[]
4274 INIT("Can't use an undefined value as %s reference");
4275 EXTCONST char PL_no_aelem[]
4276 INIT("Modification of non-creatable array value attempted, subscript %d");
4277 EXTCONST char PL_no_helem_sv[]
4278 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4279 EXTCONST char PL_no_modify[]
4280 INIT("Modification of a read-only value attempted");
4281 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4282 INIT("Out of memory!\n");
4283 EXTCONST char PL_no_security[]
4284 INIT("Insecure dependency in %s%s");
4285 EXTCONST char PL_no_sock_func[]
4286 INIT("Unsupported socket function \"%s\" called");
4287 EXTCONST char PL_no_dir_func[]
4288 INIT("Unsupported directory function \"%s\" called");
4289 EXTCONST char PL_no_func[]
4290 INIT("The %s function is unimplemented");
4291 EXTCONST char PL_no_myglob[]
4292 INIT("\"%s\" %se %s can't be in a package");
4293 EXTCONST char PL_no_localize_ref[]
4294 INIT("Can't localize through a reference");
4295 EXTCONST char PL_memory_wrap[]
4296 INIT("panic: memory wrap");
4298 EXTCONST char PL_Yes[]
4300 EXTCONST char PL_No[]
4302 EXTCONST char PL_Zero[]
4304 EXTCONST char PL_hexdigit[]
4305 INIT("0123456789abcdef0123456789ABCDEF");
4307 /* This is constant on most architectures, a global on OS/2 */
4309 EXTCONST char PL_sh_path[]
4310 INIT(SH_PATH); /* full path of shell */
4314 EXTCONST char PL_cshname[]
4316 # define PL_cshlen (sizeof(CSH "") - 1)
4319 /* These are baked at compile time into any shared perl library.
4320 In future releases this will allow us in main() to sanity test the
4321 library we're linking against. */
4323 EXTCONST U8 PL_revision
4324 INIT(PERL_REVISION);
4325 EXTCONST U8 PL_version
4327 EXTCONST U8 PL_subversion
4328 INIT(PERL_SUBVERSION);
4330 EXTCONST char PL_uuemap[65]
4331 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4333 /* a special string address whose value is "isa", but which perl knows
4334 * to treat as if it were really "DOES" when printing the method name in
4335 * the "Can't call method '%s'" error message */
4336 EXTCONST char PL_isa_DOES[]
4340 EXTCONST char PL_uudmap[256] =
4342 # include "uuudmap.h"
4344 # include "uudmap.h"
4347 EXTCONST char PL_bitcount[256] =
4349 # include "ubitcount.h"
4351 # include "bitcount.h"
4354 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4355 EXTCONST int PL_sig_num[] = { SIG_NUM };
4357 EXTCONST char PL_uudmap[256];
4358 EXTCONST char PL_bitcount[256];
4359 EXTCONST char* const PL_sig_name[];
4360 EXTCONST int PL_sig_num[];
4363 /* fast conversion and case folding tables. The folding tables complement the
4364 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4365 * folds such as outside the range or to multiple characters. */
4370 /* The EBCDIC fold table depends on the code page, and hence is found in
4373 EXTCONST unsigned char PL_fold[] = {
4374 0, 1, 2, 3, 4, 5, 6, 7,
4375 8, 9, 10, 11, 12, 13, 14, 15,
4376 16, 17, 18, 19, 20, 21, 22, 23,
4377 24, 25, 26, 27, 28, 29, 30, 31,
4378 32, 33, 34, 35, 36, 37, 38, 39,
4379 40, 41, 42, 43, 44, 45, 46, 47,
4380 48, 49, 50, 51, 52, 53, 54, 55,
4381 56, 57, 58, 59, 60, 61, 62, 63,
4382 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4383 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4384 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4385 'x', 'y', 'z', 91, 92, 93, 94, 95,
4386 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4387 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4388 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4389 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4390 128, 129, 130, 131, 132, 133, 134, 135,
4391 136, 137, 138, 139, 140, 141, 142, 143,
4392 144, 145, 146, 147, 148, 149, 150, 151,
4393 152, 153, 154, 155, 156, 157, 158, 159,
4394 160, 161, 162, 163, 164, 165, 166, 167,
4395 168, 169, 170, 171, 172, 173, 174, 175,
4396 176, 177, 178, 179, 180, 181, 182, 183,
4397 184, 185, 186, 187, 188, 189, 190, 191,
4398 192, 193, 194, 195, 196, 197, 198, 199,
4399 200, 201, 202, 203, 204, 205, 206, 207,
4400 208, 209, 210, 211, 212, 213, 214, 215,
4401 216, 217, 218, 219, 220, 221, 222, 223,
4402 224, 225, 226, 227, 228, 229, 230, 231,
4403 232, 233, 234, 235, 236, 237, 238, 239,
4404 240, 241, 242, 243, 244, 245, 246, 247,
4405 248, 249, 250, 251, 252, 253, 254, 255
4407 EXTCONST unsigned char PL_fold_latin1[] = {
4408 /* Full latin1 complement folding, except for three problematic code points:
4409 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4410 * fold complements outside the Latin1 range, so can't match something
4411 * that isn't in utf8.
4412 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4413 * not one, so can't be represented in this table.
4415 * All have to be specially handled */
4416 0, 1, 2, 3, 4, 5, 6, 7,
4417 8, 9, 10, 11, 12, 13, 14, 15,
4418 16, 17, 18, 19, 20, 21, 22, 23,
4419 24, 25, 26, 27, 28, 29, 30, 31,
4420 32, 33, 34, 35, 36, 37, 38, 39,
4421 40, 41, 42, 43, 44, 45, 46, 47,
4422 48, 49, 50, 51, 52, 53, 54, 55,
4423 56, 57, 58, 59, 60, 61, 62, 63,
4424 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4425 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4426 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4427 'x', 'y', 'z', 91, 92, 93, 94, 95,
4428 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4429 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4430 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4431 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4432 128, 129, 130, 131, 132, 133, 134, 135,
4433 136, 137, 138, 139, 140, 141, 142, 143,
4434 144, 145, 146, 147, 148, 149, 150, 151,
4435 152, 153, 154, 155, 156, 157, 158, 159,
4436 160, 161, 162, 163, 164, 165, 166, 167,
4437 168, 169, 170, 171, 172, 173, 174, 175,
4438 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4439 184, 185, 186, 187, 188, 189, 190, 191,
4440 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4441 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4442 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4443 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4444 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4445 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4446 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4447 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4448 255 /* y with diaeresis */
4451 /* If these tables are accessed through ebcdic, the access will be converted to
4453 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4454 0, 1, 2, 3, 4, 5, 6, 7,
4455 8, 9, 10, 11, 12, 13, 14, 15,
4456 16, 17, 18, 19, 20, 21, 22, 23,
4457 24, 25, 26, 27, 28, 29, 30, 31,
4458 32, 33, 34, 35, 36, 37, 38, 39,
4459 40, 41, 42, 43, 44, 45, 46, 47,
4460 48, 49, 50, 51, 52, 53, 54, 55,
4461 56, 57, 58, 59, 60, 61, 62, 63,
4462 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4463 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4464 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4465 'x', 'y', 'z', 91, 92, 93, 94, 95,
4466 96, 97, 98, 99, 100, 101, 102, 103,
4467 104, 105, 106, 107, 108, 109, 110, 111,
4468 112, 113, 114, 115, 116, 117, 118, 119,
4469 120, 121, 122, 123, 124, 125, 126, 127,
4470 128, 129, 130, 131, 132, 133, 134, 135,
4471 136, 137, 138, 139, 140, 141, 142, 143,
4472 144, 145, 146, 147, 148, 149, 150, 151,
4473 152, 153, 154, 155, 156, 157, 158, 159,
4474 160, 161, 162, 163, 164, 165, 166, 167,
4475 168, 169, 170, 171, 172, 173, 174, 175,
4476 176, 177, 178, 179, 180, 181, 182, 183,
4477 184, 185, 186, 187, 188, 189, 190, 191,
4478 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4479 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4480 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4481 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4482 224, 225, 226, 227, 228, 229, 230, 231,
4483 232, 233, 234, 235, 236, 237, 238, 239,
4484 240, 241, 242, 243, 244, 245, 246, 247,
4485 248, 249, 250, 251, 252, 253, 254, 255
4488 /* upper and title case of latin1 characters, modified so that the three tricky
4489 * ones are mapped to 255 (which is one of the three) */
4490 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4491 0, 1, 2, 3, 4, 5, 6, 7,
4492 8, 9, 10, 11, 12, 13, 14, 15,
4493 16, 17, 18, 19, 20, 21, 22, 23,
4494 24, 25, 26, 27, 28, 29, 30, 31,
4495 32, 33, 34, 35, 36, 37, 38, 39,
4496 40, 41, 42, 43, 44, 45, 46, 47,
4497 48, 49, 50, 51, 52, 53, 54, 55,
4498 56, 57, 58, 59, 60, 61, 62, 63,
4499 64, 65, 66, 67, 68, 69, 70, 71,
4500 72, 73, 74, 75, 76, 77, 78, 79,
4501 80, 81, 82, 83, 84, 85, 86, 87,
4502 88, 89, 90, 91, 92, 93, 94, 95,
4503 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4504 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4505 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4506 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4507 128, 129, 130, 131, 132, 133, 134, 135,
4508 136, 137, 138, 139, 140, 141, 142, 143,
4509 144, 145, 146, 147, 148, 149, 150, 151,
4510 152, 153, 154, 155, 156, 157, 158, 159,
4511 160, 161, 162, 163, 164, 165, 166, 167,
4512 168, 169, 170, 171, 172, 173, 174, 175,
4513 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4514 184, 185, 186, 187, 188, 189, 190, 191,
4515 192, 193, 194, 195, 196, 197, 198, 199,
4516 200, 201, 202, 203, 204, 205, 206, 207,
4517 208, 209, 210, 211, 212, 213, 214, 215,
4518 216, 217, 218, 219, 220, 221, 222,
4519 #if UNICODE_MAJOR_VERSION > 2 \
4520 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4521 && UNICODE_DOT_DOT_VERSION >= 8)
4523 #else /* uc() is itself in early unicode */
4526 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4527 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4528 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4529 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4531 #endif /* !EBCDIC, but still in DOINIT */
4532 #else /* ! DOINIT */
4534 EXTCONST unsigned char PL_fold[];
4535 EXTCONST unsigned char PL_fold_latin1[];
4536 EXTCONST unsigned char PL_mod_latin1_uc[];
4537 EXTCONST unsigned char PL_latin1_lc[];
4541 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4543 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4544 0, 1, 2, 3, 4, 5, 6, 7,
4545 8, 9, 10, 11, 12, 13, 14, 15,
4546 16, 17, 18, 19, 20, 21, 22, 23,
4547 24, 25, 26, 27, 28, 29, 30, 31,
4548 32, 33, 34, 35, 36, 37, 38, 39,
4549 40, 41, 42, 43, 44, 45, 46, 47,
4550 48, 49, 50, 51, 52, 53, 54, 55,
4551 56, 57, 58, 59, 60, 61, 62, 63,
4552 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4553 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4554 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4555 'x', 'y', 'z', 91, 92, 93, 94, 95,
4556 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4557 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4558 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4559 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4560 128, 129, 130, 131, 132, 133, 134, 135,
4561 136, 137, 138, 139, 140, 141, 142, 143,
4562 144, 145, 146, 147, 148, 149, 150, 151,
4563 152, 153, 154, 155, 156, 157, 158, 159,
4564 160, 161, 162, 163, 164, 165, 166, 167,
4565 168, 169, 170, 171, 172, 173, 174, 175,
4566 176, 177, 178, 179, 180, 181, 182, 183,
4567 184, 185, 186, 187, 188, 189, 190, 191,
4568 192, 193, 194, 195, 196, 197, 198, 199,
4569 200, 201, 202, 203, 204, 205, 206, 207,
4570 208, 209, 210, 211, 212, 213, 214, 215,
4571 216, 217, 218, 219, 220, 221, 222, 223,
4572 224, 225, 226, 227, 228, 229, 230, 231,
4573 232, 233, 234, 235, 236, 237, 238, 239,
4574 240, 241, 242, 243, 244, 245, 246, 247,
4575 248, 249, 250, 251, 252, 253, 254, 255
4578 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
4580 #endif /* !PERL_GLOBAL_STRUCT */
4584 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
4585 1, 2, 84, 151, 154, 155, 156, 157,
4586 165, 246, 250, 3, 158, 7, 18, 29,
4587 40, 51, 62, 73, 85, 96, 107, 118,
4588 129, 140, 147, 148, 149, 150, 152, 153,
4589 255, 6, 8, 9, 10, 11, 12, 13,
4590 14, 15, 24, 25, 26, 27, 28, 226,
4591 29, 30, 31, 32, 33, 43, 44, 45,
4592 46, 47, 48, 49, 50, 76, 77, 78,
4593 79, 80, 81, 82, 83, 84, 85, 86,
4594 87, 94, 95, 234, 181, 233, 187, 190,
4595 180, 96, 97, 98, 99, 100, 101, 102,
4596 104, 112, 182, 174, 236, 232, 229, 103,
4597 228, 226, 114, 115, 116, 117, 118, 119,
4598 120, 121, 122, 235, 176, 230, 194, 162,
4599 130, 131, 132, 133, 134, 135, 136, 137,
4600 138, 139, 201, 205, 163, 217, 220, 224,
4601 5, 248, 227, 244, 242, 255, 241, 231,
4602 240, 253, 16, 197, 19, 20, 21, 187,
4603 23, 169, 210, 245, 237, 249, 247, 239,
4604 168, 252, 34, 196, 36, 37, 38, 39,
4605 41, 42, 251, 254, 238, 223, 221, 213,
4606 225, 177, 52, 53, 54, 55, 56, 57,
4607 58, 59, 60, 61, 63, 64, 65, 66,
4608 67, 68, 69, 70, 71, 72, 74, 75,
4609 205, 208, 186, 202, 200, 218, 198, 179,
4610 178, 214, 88, 89, 90, 91, 92, 93,
4611 217, 166, 170, 207, 199, 209, 206, 204,
4612 160, 212, 105, 106, 108, 109, 110, 111,
4613 203, 113, 216, 215, 192, 175, 193, 243,
4614 172, 161, 123, 124, 125, 126, 127, 128,
4615 222, 219, 211, 195, 188, 193, 185, 184,
4616 191, 183, 141, 142, 143, 144, 145, 146
4618 #else /* ascii rather than ebcdic */
4619 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
4620 1, 2, 84, 151, 154, 155, 156, 157,
4621 165, 246, 250, 3, 158, 7, 18, 29,
4622 40, 51, 62, 73, 85, 96, 107, 118,
4623 129, 140, 147, 148, 149, 150, 152, 153,
4624 255, 182, 224, 205, 174, 176, 180, 217,
4625 233, 232, 236, 187, 235, 228, 234, 226,
4626 222, 219, 211, 195, 188, 193, 185, 184,
4627 191, 183, 201, 229, 181, 220, 194, 162,
4628 163, 208, 186, 202, 200, 218, 198, 179,
4629 178, 214, 166, 170, 207, 199, 209, 206,
4630 204, 160, 212, 216, 215, 192, 175, 173,
4631 243, 172, 161, 190, 203, 189, 164, 230,
4632 167, 248, 227, 244, 242, 255, 241, 231,
4633 240, 253, 169, 210, 245, 237, 249, 247,
4634 239, 168, 252, 251, 254, 238, 223, 221,
4635 213, 225, 177, 197, 171, 196, 159, 4,
4636 5, 6, 8, 9, 10, 11, 12, 13,
4637 14, 15, 16, 17, 19, 20, 21, 22,
4638 23, 24, 25, 26, 27, 28, 30, 31,
4639 32, 33, 34, 35, 36, 37, 38, 39,
4640 41, 42, 43, 44, 45, 46, 47, 48,
4641 49, 50, 52, 53, 54, 55, 56, 57,
4642 58, 59, 60, 61, 63, 64, 65, 66,
4643 67, 68, 69, 70, 71, 72, 74, 75,
4644 76, 77, 78, 79, 80, 81, 82, 83,
4645 86, 87, 88, 89, 90, 91, 92, 93,
4646 94, 95, 97, 98, 99, 100, 101, 102,
4647 103, 104, 105, 106, 108, 109, 110, 111,
4648 112, 113, 114, 115, 116, 117, 119, 120,
4649 121, 122, 123, 124, 125, 126, 127, 128,
4650 130, 131, 132, 133, 134, 135, 136, 137,
4651 138, 139, 141, 142, 143, 144, 145, 146
4655 EXTCONST unsigned char PL_freq[];
4658 /* Although only used for debugging, these constants must be available in
4659 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4660 * which has DEBUGGING enabled always */
4662 EXTCONST char* const PL_block_type[] = {
4678 EXTCONST char* PL_block_type[];
4681 /* These are all the compile time options that affect binary compatibility.
4682 Other compile time options that are binary compatible are in perl.c
4683 (in S_Internals_V()). Both are combined for the output of perl -V
4684 However, this string will be embedded in any shared perl library, which will
4685 allow us add a comparison check in perlmain.c in the near future. */
4687 EXTCONST char PL_bincompat_options[] =
4688 # ifdef DEBUG_LEAKING_SCALARS
4689 " DEBUG_LEAKING_SCALARS"
4691 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4692 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4700 # ifdef HAVE_INTERP_INTERN
4701 " HAVE_INTERP_INTERN"
4703 # ifdef MULTIPLICITY
4709 # ifdef PERLIO_LAYERS
4712 # ifdef PERL_DEBUG_READONLY_COW
4713 " PERL_DEBUG_READONLY_COW"
4715 # ifdef PERL_DEBUG_READONLY_OPS
4716 " PERL_DEBUG_READONLY_OPS"
4718 # ifdef PERL_GLOBAL_STRUCT
4719 " PERL_GLOBAL_STRUCT"
4721 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
4722 " PERL_GLOBAL_STRUCT_PRIVATE"
4724 # ifdef PERL_IMPLICIT_CONTEXT
4725 " PERL_IMPLICIT_CONTEXT"
4727 # ifdef PERL_IMPLICIT_SYS
4728 " PERL_IMPLICIT_SYS"
4733 # ifdef PERL_NEED_APPCTX
4736 # ifdef PERL_NEED_TIMESBASE
4737 " PERL_NEED_TIMESBASE"
4742 # ifdef PERL_SAWAMPERSAND
4743 " PERL_SAWAMPERSAND"
4745 # ifdef PERL_TRACK_MEMPOOL
4746 " PERL_TRACK_MEMPOOL"
4748 # ifdef PERL_USES_PL_PIDSTATUS
4749 " PERL_USES_PL_PIDSTATUS"
4751 # ifdef USE_64_BIT_ALL
4754 # ifdef USE_64_BIT_INT
4760 # ifdef USE_ITHREADS
4763 # ifdef USE_LARGE_FILES
4766 # ifdef USE_LOCALE_COLLATE
4767 " USE_LOCALE_COLLATE"
4769 # ifdef USE_LOCALE_NUMERIC
4770 " USE_LOCALE_NUMERIC"
4772 # ifdef USE_LOCALE_TIME
4775 # ifdef USE_LONG_DOUBLE
4781 # ifdef USE_QUADMATH
4784 # ifdef USE_REENTRANT_API
4785 " USE_REENTRANT_API"
4790 # ifdef VMS_DO_SOCKETS
4793 # ifdef VMS_SHORTEN_LONG_SYMBOLS
4794 " VMS_SHORTEN_LONG_SYMBOLS"
4796 # ifdef VMS_WE_ARE_CASE_SENSITIVE
4797 " VMS_SYMBOL_CASE_AS_IS"
4801 EXTCONST char PL_bincompat_options[];
4804 #ifndef PERL_SET_PHASE
4805 # define PERL_SET_PHASE(new_phase) \
4806 PERL_DTRACE_PROBE_PHASE(new_phase); \
4807 PL_phase = new_phase;
4810 /* The interpreter phases. If these ever change, PL_phase_names right below will
4811 * need to be updated accordingly. */
4813 PERL_PHASE_CONSTRUCT = 0,
4814 PERL_PHASE_START = 1,
4815 PERL_PHASE_CHECK = 2,
4816 PERL_PHASE_INIT = 3,
4819 PERL_PHASE_DESTRUCT = 6
4823 EXTCONST char *const PL_phase_names[] = {
4833 EXTCONST char *const PL_phase_names[];
4837 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
4838 * instead of using the newer PL_phase, which provides everything PL_dirty
4839 * provided, and more. */
4840 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
4842 # define PL_amagic_generation PL_na
4843 # define PL_encoding ((SV *)NULL)
4844 #endif /* !PERL_CORE */
4846 #define PL_hints PL_compiling.cop_hints
4847 #define PL_maxo MAXO
4851 /*****************************************************************************/
4852 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
4853 /*****************************************************************************/
4854 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
4857 /* LynxOS defines these in scsi.h which is included via ioctl.h */
4866 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
4879 XTERMORDORDOR /* evil hack */
4880 /* update exp_name[] in toke.c if adding to this enum */
4883 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
4885 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
4886 special and there is no need for HINT_PRIVATE_MASK for COPs
4887 However, bitops store HINT_INTEGER in their op_private.
4889 NOTE: The typical module using these has the bit value hard-coded, so don't
4890 blindly change the values of these.
4892 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
4893 is for "use locale 'FOO'" which excludes some categories. It requires going
4894 to %^H to find out which are in and which are out. This could be extended
4895 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
4897 #define HINT_INTEGER 0x00000001 /* integer pragma */
4898 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
4899 #define HINT_LOCALE 0x00000004 /* locale pragma */
4900 #define HINT_BYTES 0x00000008 /* bytes pragma */
4901 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
4903 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
4904 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
4905 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
4907 #define HINT_BLOCK_SCOPE 0x00000100
4908 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
4909 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
4910 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
4912 /* The HINT_NEW_* constants are used by the overload pragma */
4913 #define HINT_NEW_INTEGER 0x00001000
4914 #define HINT_NEW_FLOAT 0x00002000
4915 #define HINT_NEW_BINARY 0x00004000
4916 #define HINT_NEW_STRING 0x00008000
4917 #define HINT_NEW_RE 0x00010000
4918 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
4919 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
4920 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
4922 #define HINT_RE_TAINT 0x00100000 /* re pragma */
4923 #define HINT_RE_EVAL 0x00200000 /* re pragma */
4925 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
4926 #define HINT_UTF8 0x00800000 /* utf8 pragma */
4928 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
4930 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
4932 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
4934 /* Note: Used for HINT_M_VMSISH_*,
4935 currently defined by vms/vmsish.h:
4940 /* The following are stored in $^H{sort}, not in PL_hints */
4941 #define HINT_SORT_SORT_BITS 0x000000FF /* allow 256 different ones */
4942 #define HINT_SORT_QUICKSORT 0x00000001
4943 #define HINT_SORT_MERGESORT 0x00000002
4944 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
4945 #define HINT_SORT_UNSTABLE 0x00000200
4947 /* flags for PL_sawampersand */
4949 #define SAWAMPERSAND_LEFT 1 /* saw $` */
4950 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
4951 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
4953 #ifndef PERL_SAWAMPERSAND
4954 # define PL_sawampersand \
4955 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
4958 /* Used for debugvar magic */
4959 #define DBVARMG_SINGLE 0
4960 #define DBVARMG_TRACE 1
4961 #define DBVARMG_SIGNAL 2
4962 #define DBVARMG_COUNT 3
4964 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
4965 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
4966 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
4968 /* Various states of the input record separator SV (rs) */
4969 #define RsSNARF(sv) (! SvOK(sv))
4970 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
4971 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
4972 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
4974 /* A struct for keeping various DEBUGGING related stuff,
4975 * neatly packed. Currently only scratch variables for
4976 * constructing debug output are included. Needed always,
4977 * not just when DEBUGGING, though, because of the re extension. c*/
4978 struct perl_debug_pad {
4982 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
4983 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
4984 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
4987 /* Enable variables which are pointers to functions */
4988 typedef void (*peep_t)(pTHX_ OP* o);
4989 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
4990 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
4991 char* strend, char* strbeg, I32 minend,
4992 SV* screamer, void* data, U32 flags);
4993 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
4994 char *strpos, char *strend,
4996 re_scream_pos_data *d);
4997 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
4998 typedef void (*regfree_t) (pTHX_ struct regexp* r);
4999 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5000 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5002 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5003 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5004 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5005 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5006 typedef void (*XSINIT_t) (pTHX);
5007 typedef void (*ATEXIT_t) (pTHX_ void*);
5008 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5010 typedef OP* (*Perl_ppaddr_t)(pTHX);
5011 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5012 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5013 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5014 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5016 typedef void(*globhook_t)(pTHX);
5018 #define KEYWORD_PLUGIN_DECLINE 0
5019 #define KEYWORD_PLUGIN_STMT 1
5020 #define KEYWORD_PLUGIN_EXPR 2
5022 /* Interpreter exitlist entry */
5023 typedef struct exitlistentry {
5024 void (*fn) (pTHX_ void*);
5026 } PerlExitListEntry;
5028 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5029 /* These have to be before perlvars.h */
5030 #if !defined(HAS_SIGACTION) && defined(VMS)
5031 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5033 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5034 #if defined(KILL_BY_SIGPRC)
5035 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5038 #if !defined(MULTIPLICITY)
5040 struct interpreter {
5046 /* If we have multiple interpreters define a struct
5047 holding variables which must be per-interpreter
5048 If we don't have threads anything that would have
5049 be per-thread is per-interpreter.
5052 /* Set up PERLVAR macros for populating structs */
5053 # define PERLVAR(prefix,var,type) type prefix##var;
5055 /* 'var' is an array of length 'n' */
5056 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5058 /* initialize 'var' to init' */
5059 # define PERLVARI(prefix,var,type,init) type prefix##var;
5061 /* like PERLVARI, but make 'var' a const */
5062 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5064 struct interpreter {
5065 # include "intrpvar.h"
5068 EXTCONST U16 PL_interp_size
5069 INIT(sizeof(struct interpreter));
5071 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5072 STRUCT_OFFSET(struct interpreter, member) + \
5073 sizeof(((struct interpreter*)0)->member)
5075 /* This will be useful for subsequent releases, because this has to be the
5076 same in your libperl as in main(), else you have a mismatch and must abort.
5078 EXTCONST U16 PL_interp_size_5_18_0
5079 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5082 # ifdef PERL_GLOBAL_STRUCT
5083 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5084 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5087 # include "perlvars.h"
5090 EXTCONST U16 PL_global_struct_size
5091 INIT(sizeof(struct perl_vars));
5094 # ifndef PERL_GLOBAL_STRUCT_PRIVATE
5095 EXT struct perl_vars PL_Vars;
5096 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5097 # undef PERL_GET_VARS
5098 # define PERL_GET_VARS() PL_VarsPtr
5099 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5100 # else /* PERL_CORE */
5101 # if !defined(__GNUC__) || !defined(WIN32)
5104 struct perl_vars *PL_VarsPtr;
5105 # define PL_Vars (*((PL_VarsPtr) \
5106 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5107 # endif /* PERL_CORE */
5108 # endif /* PERL_GLOBAL_STRUCT */
5110 /* Done with PERLVAR macros for now ... */
5116 #endif /* MULTIPLICITY */
5118 struct tempsym; /* defined in pp_pack.c */
5125 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5126 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5129 # include "malloc_ctl.h"
5133 * This provides a layer of functions and macros to ensure extensions will
5134 * get to use the same RTL functions as the core.
5137 # include "win32iop.h"
5143 /* this has structure inits, so it cannot be included before here */
5146 /* The following must follow proto.h as #defines mess up syntax */
5148 #if !defined(PERL_FOR_X2P)
5149 # include "embedvar.h"
5152 /* Now include all the 'global' variables
5153 * If we don't have threads or multiple interpreters
5154 * these include variables that would have been their struct-s
5157 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5158 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5159 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5160 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5162 #if !defined(MULTIPLICITY)
5164 # include "intrpvar.h"
5166 # define PL_sv_yes (PL_sv_immortals[0])
5167 # define PL_sv_undef (PL_sv_immortals[1])
5168 # define PL_sv_no (PL_sv_immortals[2])
5169 # define PL_sv_zero (PL_sv_immortals[3])
5173 /* All core uses now exterminated. Ensure no zombies can return: */
5177 /* Now all the config stuff is setup we can include embed.h
5178 In particular, need the relevant *ish file included already, as it may
5179 define HAVE_INTERP_INTERN */
5182 #ifndef PERL_GLOBAL_STRUCT
5185 # include "perlvars.h"
5195 #if !defined(MULTIPLICITY)
5196 /* Set up PERLVAR macros for populating structs */
5197 # define PERLVAR(prefix,var,type) type prefix##var;
5198 /* 'var' is an array of length 'n' */
5199 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5200 /* initialize 'var' to init' */
5201 # define PERLVARI(prefix,var,type,init) type prefix##var;
5202 /* like PERLVARI, but make 'var' a const */
5203 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5205 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5206 struct PerlHandShakeInterpreter {
5207 # include "intrpvar.h"
5217 /* dummy variables that hold pointers to both runops functions, thus forcing
5218 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5220 EXTCONST runops_proc_t PL_runops_std
5221 INIT(Perl_runops_standard);
5222 EXTCONST runops_proc_t PL_runops_dbg
5223 INIT(Perl_runops_debug);
5225 #define EXT_MGVTBL EXTCONST MGVTBL
5227 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5228 #define PERL_MAGIC_VALUE_MAGIC 0x80
5229 #define PERL_MAGIC_VTABLE_MASK 0x3F
5230 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5231 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5232 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5233 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5235 #include "mg_vtable.h"
5238 EXTCONST U8 PL_magic_data[256] =
5240 # include "umg_data.h"
5242 # include "mg_data.h"
5246 EXTCONST U8 PL_magic_data[256];
5250 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5252 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5254 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5256 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5258 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5260 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5262 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5266 EXTCONST bool PL_valid_types_IVX[];
5267 EXTCONST bool PL_valid_types_NVX[];
5268 EXTCONST bool PL_valid_types_PVX[];
5269 EXTCONST bool PL_valid_types_RV[];
5270 EXTCONST bool PL_valid_types_IV_set[];
5271 EXTCONST bool PL_valid_types_NV_set[];
5275 /* In C99 we could use designated (named field) union initializers.
5276 * In C89 we need to initialize the member declared first.
5277 * In C++ we need extern C initializers.
5279 * With the U8_NV version you will want to have inner braces,
5280 * while with the NV_U8 use just the NV. */
5283 #define INFNAN_U8_NV_DECL EXTERN_C const union { U8 u8[NVSIZE]; NV nv; }
5284 #define INFNAN_NV_U8_DECL EXTERN_C const union { NV nv; U8 u8[NVSIZE]; }
5286 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5287 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5290 /* if these never got defined, they need defaults */
5291 #ifndef PERL_SET_CONTEXT
5292 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5295 #ifndef PERL_GET_CONTEXT
5296 # define PERL_GET_CONTEXT PERL_GET_INTERP
5299 #ifndef PERL_GET_THX
5300 # define PERL_GET_THX ((void*)NULL)
5303 #ifndef PERL_SET_THX
5304 # define PERL_SET_THX(t) NOOP
5308 #ifndef PERL_NO_INLINE_FUNCTIONS
5309 /* Static inline funcs that depend on includes and declarations above.
5310 Some of these reference functions in the perl object files, and some
5311 compilers aren't smart enough to eliminate unused static inline
5312 functions, so including this file in source code can cause link errors
5313 even if the source code uses none of the functions. Hence including these
5314 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5315 (obviously) result in unworkable XS code, but allows simple probing code
5316 to continue to work, because it permits tests to include the perl headers
5317 for definitions without creating a link dependency on the perl library
5318 (which may not exist yet).
5321 # include "inline.h"
5324 #include "overload.h"
5333 CV* table[NofAMmeth];
5335 struct am_table_short {
5341 typedef struct am_table AMT;
5342 typedef struct am_table_short AMTS;
5344 #define AMGfallNEVER 1
5346 #define AMGfallYES 3
5348 #define AMTf_AMAGIC 1
5349 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5350 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5351 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5353 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
5356 * some compilers like to redefine cos et alia as faster
5357 * (and less accurate?) versions called F_cos et cetera (Quidquid
5358 * latine dictum sit, altum viditur.) This trick collides with
5359 * the Perl overloading (amg). The following #defines fool both.
5364 # define F_atan2_amg atan2_amg
5367 # define F_cos_amg cos_amg
5370 # define F_exp_amg exp_amg
5373 # define F_log_amg log_amg
5376 # define F_pow_amg pow_amg
5379 # define F_sin_amg sin_amg
5382 # define F_sqrt_amg sqrt_amg
5384 #endif /* _FASTMATH */
5386 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
5387 PERLDBf_NOOPT | PERLDBf_INTER | \
5388 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
5389 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
5391 /* No _NONAME, _GOTO */
5392 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
5393 #define PERLDBf_LINE 0x02 /* Keep line # */
5394 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
5395 #define PERLDBf_INTER 0x08 /* Preserve more data for
5396 later inspections */
5397 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
5398 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
5399 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
5400 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
5401 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
5402 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
5403 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
5404 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
5405 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
5407 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
5408 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
5409 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
5410 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
5411 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
5412 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
5413 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
5414 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
5415 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
5416 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
5417 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
5418 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
5419 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
5421 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
5424 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
5425 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
5426 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
5427 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
5429 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
5430 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
5431 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
5432 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
5436 /* These locale things are all subject to change */
5439 # if defined(HAS_NEWLOCALE) \
5440 && defined(LC_ALL_MASK) \
5441 && defined(HAS_FREELOCALE) \
5442 && defined(HAS_USELOCALE) \
5443 && ! defined(NO_POSIX_2008_LOCALE)
5445 /* The code is written for simplicity to assume that any platform advanced
5446 * enough to have the Posix 2008 locale functions has LC_ALL. The test
5447 * above makes sure that assumption is valid */
5449 # define HAS_POSIX_2008_LOCALE
5452 /* We create a C locale object unconditionally if we have the functions to do
5453 * so; hence must destroy it unconditionally at the end */
5454 # ifndef HAS_POSIX_2008_LOCALE
5455 # define _LOCALE_TERM_POSIX_2008 NOOP
5457 # define _LOCALE_TERM_POSIX_2008 \
5459 if (PL_C_locale_obj) { \
5460 /* Make sure we aren't using the locale \
5461 * space we are about to free */ \
5462 uselocale(LC_GLOBAL_LOCALE); \
5463 freelocale(PL_C_locale_obj); \
5464 PL_C_locale_obj = (locale_t) NULL; \
5469 # ifndef USE_ITHREADS
5470 # define LOCALE_INIT
5471 # define LOCALE_LOCK
5472 # define LOCALE_UNLOCK
5473 # define LOCALE_TERM STMT_START { _LOCALE_TERM_POSIX_2008; } STMT_END
5474 # else /* Below is do use threads */
5475 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex)
5476 # define LOCALE_LOCK MUTEX_LOCK(&PL_locale_mutex)
5477 # define LOCALE_UNLOCK MUTEX_UNLOCK(&PL_locale_mutex)
5478 # define LOCALE_TERM \
5480 MUTEX_DESTROY(&PL_locale_mutex); \
5481 _LOCALE_TERM_POSIX_2008; \
5483 # ifdef HAS_POSIX_2008_LOCALE
5484 # define USE_POSIX_2008_LOCALE
5485 # define USE_THREAD_SAFE_LOCALE
5489 /* Returns TRUE if the plain locale pragma without a parameter is in effect
5491 # define IN_LOCALE_RUNTIME (PL_curcop \
5492 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
5494 /* Returns TRUE if either form of the locale pragma is in effect */
5495 # define IN_SOME_LOCALE_FORM_RUNTIME \
5496 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
5498 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
5499 # define IN_SOME_LOCALE_FORM_COMPILETIME \
5500 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
5502 # define IN_LOCALE \
5503 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
5504 # define IN_SOME_LOCALE_FORM \
5505 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
5506 : IN_SOME_LOCALE_FORM_RUNTIME)
5508 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
5509 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
5511 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
5512 # define IN_LC_PARTIAL_RUNTIME \
5513 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
5515 # define IN_LC_COMPILETIME(category) \
5516 (IN_LC_ALL_COMPILETIME || (IN_LC_PARTIAL_COMPILETIME \
5517 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
5518 # define IN_LC_RUNTIME(category) \
5519 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
5520 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
5521 # define IN_LC(category) \
5522 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
5524 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
5526 /* This internal macro should be called from places that operate under
5527 * locale rules. It there is a problem with the current locale that
5528 * hasn't been raised yet, it will output a warning this time. Because
5529 * this will so rarely be true, there is no point to optimize for
5530 * time; instead it makes sense to minimize space used and do all the
5531 * work in the rarely called function */
5532 # ifdef USE_LOCALE_CTYPE
5533 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
5535 if (UNLIKELY(PL_warn_locale)) { \
5536 Perl__warn_problematic_locale(); \
5540 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5544 /* These two internal macros are called when a warning should be raised,
5545 * and will do so if enabled. The first takes a single code point
5546 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
5547 * string, and an end position which it won't try to read past */
5548 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
5550 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5551 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5552 "Wide character (U+%" UVXf ") in %s",\
5553 (UV) cp, OP_DESC(PL_op)); \
5557 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
5558 STMT_START { /* Check if to warn before doing the conversion work */\
5559 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5560 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \
5561 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5562 "Wide character (U+%" UVXf ") in %s", \
5564 ? UNICODE_REPLACEMENT \
5570 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
5571 #else /* No locale usage */
5572 # define LOCALE_INIT
5573 # define LOCALE_TERM
5574 # define LOCALE_LOCK
5575 # define LOCALE_UNLOCK
5576 # define IN_LOCALE_RUNTIME 0
5577 # define IN_SOME_LOCALE_FORM_RUNTIME 0
5578 # define IN_LOCALE_COMPILETIME 0
5579 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
5580 # define IN_LOCALE 0
5581 # define IN_SOME_LOCALE_FORM 0
5582 # define IN_LC_ALL_COMPILETIME 0
5583 # define IN_LC_ALL_RUNTIME 0
5584 # define IN_LC_PARTIAL_COMPILETIME 0
5585 # define IN_LC_PARTIAL_RUNTIME 0
5586 # define IN_LC_COMPILETIME(category) 0
5587 # define IN_LC_RUNTIME(category) 0
5588 # define IN_LC(category) 0
5590 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5591 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(a)
5592 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(a,b)
5595 #ifdef USE_LOCALE_NUMERIC
5597 /* These macros are for toggling between the underlying locale (UNDERLYING or
5598 * LOCAL) and the C locale (STANDARD).
5600 =head1 Locale-related functions and macros
5602 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5604 This macro should be used as a statement. It declares a private variable
5605 (whose name begins with an underscore) that is needed by the other macros in
5606 this section. Failing to include this correctly should lead to a syntax error.
5607 For compatibility with C89 C compilers it should be placed in a block before
5608 any executable statements.
5610 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
5612 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
5613 locale for category C<LC_NUMERIC> to be what perl thinks is the current
5614 underlying locale. (The perl interpreter could be wrong about what the
5615 underlying locale actually is if some C or XS code has called the C library
5616 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
5617 this macro will update perl's records.)
5619 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5620 declare at compile time a private variable used by this macro. This macro
5621 should be called as a single statement, not an expression, but with an empty
5622 argument list, like this:
5625 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5627 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
5629 RESTORE_LC_NUMERIC();
5633 The private variable is used to save the current locale state, so
5634 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
5636 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
5638 This is used to help wrap XS or C code that that is C<LC_NUMERIC> locale-aware.
5639 This locale category is generally kept set to the C locale by Perl for
5640 backwards compatibility, and because most XS code that reads floating point
5641 values can cope only with the decimal radix character being a dot.
5643 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
5644 aware of locale if the call to the XS or C code from the Perl program is
5645 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
5646 instead from outside such scope.
5648 This macro is the start of wrapping the C or XS code; the wrap ending is done
5649 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
5650 the state can be changed that will adversely affect other XS code.
5652 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5653 declare at compile time a private variable used by this macro. This macro
5654 should be called as a single statement, not an expression, but with an empty
5655 argument list, like this:
5658 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5660 STORE_LC_NUMERIC_SET_TO_NEEDED();
5662 RESTORE_LC_NUMERIC();
5666 =for apidoc Am|void|RESTORE_LC_NUMERIC
5668 This is used in conjunction with one of the macros
5669 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
5671 L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING>
5673 to properly restore the C<LC_NUMERIC> state.
5675 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5676 declare at compile time a private variable used by this macro and the two
5677 C<STORE> ones. This macro should be called as a single statement, not an
5678 expression, but with an empty argument list, like this:
5681 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5683 RESTORE_LC_NUMERIC();
5691 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
5693 /* We can lock the category to stay in the C locale, making requests to the
5694 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
5696 # define _NOT_IN_NUMERIC_UNDERLYING \
5697 (! PL_numeric_underlying && PL_numeric_standard < 2)
5699 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
5700 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
5702 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
5703 if (IN_LC(LC_NUMERIC)) { \
5704 if (_NOT_IN_NUMERIC_UNDERLYING) { \
5705 Perl_set_numeric_underlying(aTHX); \
5706 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5710 if (_NOT_IN_NUMERIC_STANDARD) { \
5711 SET_NUMERIC_STANDARD(); \
5712 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying; \
5716 # define RESTORE_LC_NUMERIC() \
5717 if (_restore_LC_NUMERIC_function) { \
5718 _restore_LC_NUMERIC_function(aTHX); \
5721 /* The next two macros set unconditionally. These should be rarely used, and
5722 * only after being sure that this is what is needed */
5723 # define SET_NUMERIC_STANDARD() \
5724 STMT_START { if (_NOT_IN_NUMERIC_STANDARD) \
5725 Perl_set_numeric_standard(aTHX); \
5728 # define SET_NUMERIC_UNDERLYING() \
5729 STMT_START { if (_NOT_IN_NUMERIC_UNDERLYING) \
5730 Perl_set_numeric_underlying(aTHX); } STMT_END
5732 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
5733 * the RESTORE_foo ones called to switch back, but only if need be */
5734 # define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD() \
5735 bool _was_underlying = _NOT_IN_NUMERIC_STANDARD; \
5736 if (_was_underlying) Perl_set_numeric_standard(aTHX);
5738 /* Doesn't change to underlying locale unless within the scope of some form of
5739 * 'use locale'. This is the usual desired behavior. */
5740 # define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING() \
5741 bool _was_standard = _NOT_IN_NUMERIC_UNDERLYING \
5742 && IN_LC(LC_NUMERIC); \
5743 if (_was_standard) Perl_set_numeric_underlying(aTHX);
5745 /* Rarely, we want to change to the underlying locale even outside of 'use
5746 * locale'. This is principally in the POSIX:: functions */
5747 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
5748 if (_NOT_IN_NUMERIC_UNDERLYING) { \
5749 Perl_set_numeric_underlying(aTHX); \
5750 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5753 /* Lock/unlock to the C locale until unlock is called. This needs to be
5754 * recursively callable. [perl #128207] */
5755 # define LOCK_LC_NUMERIC_STANDARD() \
5756 (__ASSERT_(PL_numeric_standard) \
5757 PL_numeric_standard++)
5758 # define UNLOCK_LC_NUMERIC_STANDARD() \
5760 if (PL_numeric_standard > 1) { \
5761 PL_numeric_standard--; \
5768 # define RESTORE_LC_NUMERIC_UNDERLYING() \
5769 if (_was_underlying) Perl_set_numeric_underlying(aTHX);
5771 # define RESTORE_LC_NUMERIC_STANDARD() \
5772 if (_restore_LC_NUMERIC_function) { \
5773 _restore_LC_NUMERIC_function(aTHX); \
5776 #else /* !USE_LOCALE_NUMERIC */
5778 # define SET_NUMERIC_STANDARD()
5779 # define SET_NUMERIC_UNDERLYING()
5780 # define IS_NUMERIC_RADIX(a, b) (0)
5781 # define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5782 # define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5783 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5784 # define RESTORE_LC_NUMERIC_UNDERLYING()
5785 # define RESTORE_LC_NUMERIC_STANDARD()
5786 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5787 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
5788 # define RESTORE_LC_NUMERIC()
5789 # define LOCK_LC_NUMERIC_STANDARD()
5790 # define UNLOCK_LC_NUMERIC_STANDARD()
5792 #endif /* !USE_LOCALE_NUMERIC */
5794 #define Atof my_atof
5796 /* Back-compat names */
5797 #define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED \
5798 DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5799 #define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED() \
5800 DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED; \
5801 STORE_LC_NUMERIC_SET_TO_NEEDED();
5802 #define LOCK_NUMERIC_STANDARD() LOCK_LC_NUMERIC_STANDARD()
5803 #define RESTORE_NUMERIC_LOCAL() RESTORE_LC_NUMERIC_UNDERLYING()
5804 #define RESTORE_NUMERIC_STANDARD() RESTORE_LC_NUMERIC_STANDARD()
5805 #define SET_NUMERIC_LOCAL() SET_NUMERIC_UNDERLYING()
5806 #define STORE_NUMERIC_LOCAL_SET_STANDARD() \
5807 STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5808 #define STORE_NUMERIC_STANDARD_SET_LOCAL() \
5809 STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5810 #define STORE_NUMERIC_STANDARD_FORCE_LOCAL() \
5811 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5812 #define UNLOCK_NUMERIC_STANDARD() UNLOCK_LC_NUMERIC_STANDARD()
5817 # define Perl_strtod(s, e) strtoflt128(s, e)
5818 #elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
5819 # if defined(HAS_STRTOLD)
5820 # define Perl_strtod(s, e) strtold(s, e)
5821 # elif defined(HAS_STRTOD)
5822 # define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */
5824 #elif defined(HAS_STRTOD)
5825 # define Perl_strtod(s, e) strtod(s, e)
5828 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
5829 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5831 # define strtoll __strtoll /* secret handshake */
5833 # if defined(WIN64) && defined(_MSC_VER)
5834 # define strtoll _strtoi64 /* secret handshake */
5836 # if !defined(Strtol) && defined(HAS_STRTOLL)
5837 # define Strtol strtoll
5839 # if !defined(Strtol) && defined(HAS_STRTOQ)
5840 # define Strtol strtoq
5842 /* is there atoq() anywhere? */
5844 #if !defined(Strtol) && defined(HAS_STRTOL)
5845 # define Strtol strtol
5848 /* It would be more fashionable to use Strtol() to define atol()
5849 * (as is done for Atoul(), see below) but for backward compatibility
5850 * we just assume atol(). */
5851 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
5852 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5854 # define atoll _atoi64 /* secret handshake */
5862 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
5863 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
5865 # define strtoull __strtoull /* secret handshake */
5867 # if defined(WIN64) && defined(_MSC_VER)
5868 # define strtoull _strtoui64 /* secret handshake */
5870 # if !defined(Strtoul) && defined(HAS_STRTOULL)
5871 # define Strtoul strtoull
5873 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
5874 # define Strtoul strtouq
5876 /* is there atouq() anywhere? */
5878 #if !defined(Strtoul) && defined(HAS_STRTOUL)
5879 # define Strtoul strtoul
5881 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
5882 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
5885 # define Atoul(s) Strtoul(s, NULL, 10)
5888 #ifndef PERL_SCRIPT_MODE
5889 #define PERL_SCRIPT_MODE "r"
5892 /* not used. Kept as a NOOP for backcompat */
5893 #define PERL_STACK_OVERFLOW_CHECK() NOOP
5896 * Some nonpreemptive operating systems find it convenient to
5897 * check for asynchronous conditions after each op execution.
5898 * Keep this check simple, or it may slow down execution
5903 # ifndef PERL_ASYNC_CHECK
5904 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
5908 #ifndef PERL_ASYNC_CHECK
5909 # define PERL_ASYNC_CHECK() NOOP
5913 * On some operating systems, a memory allocation may succeed,
5914 * but put the process too close to the system's comfort limit.
5915 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
5918 #ifndef PERL_ALLOC_CHECK
5919 #define PERL_ALLOC_CHECK(p) NOOP
5923 # include <sys/ipc.h>
5924 # include <sys/sem.h>
5925 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
5928 struct semid_ds *buf;
5929 unsigned short *array;
5932 # ifdef USE_SEMCTL_SEMUN
5933 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
5934 union gccbug_semun {
5936 struct semid_ds *buf;
5937 unsigned short *array;
5940 # define semun gccbug_semun
5942 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
5943 # elif defined(USE_SEMCTL_SEMID_DS)
5944 # ifdef EXTRA_F_IN_SEMUN_BUF
5945 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
5947 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
5953 * Boilerplate macros for initializing and accessing interpreter-local
5954 * data from C. All statics in extensions should be reworked to use
5955 * this, if you want to make the extension thread-safe. See
5956 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
5957 * and perlxs.pod for more.
5959 * Code that uses these macros is responsible for the following:
5960 * 1. #define MY_CXT_KEY to a unique string, e.g.
5961 * "DynaLoader::_guts" XS_VERSION
5962 * XXX in the current implementation, this string is ignored.
5963 * 2. Declare a typedef named my_cxt_t that is a structure that contains
5964 * all the data that needs to be interpreter-local.
5965 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
5966 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
5967 * (typically put in the BOOT: section).
5968 * 5. Use the members of the my_cxt_t structure everywhere as
5970 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
5974 #if defined(PERL_IMPLICIT_CONTEXT)
5976 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
5977 * right after the definition (i.e. at file scope). The non-threads
5978 * case below uses it to declare the data as static. */
5979 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
5980 # define START_MY_CXT
5981 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
5982 # define MY_CXT_INIT_ARG MY_CXT_KEY
5984 # define START_MY_CXT static int my_cxt_index = -1;
5985 # define MY_CXT_INDEX my_cxt_index
5986 # define MY_CXT_INIT_ARG &my_cxt_index
5987 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
5989 /* Creates and zeroes the per-interpreter data.
5990 * (We allocate my_cxtp in a Perl SV so that it will be released when
5991 * the interpreter goes away.) */
5992 # define MY_CXT_INIT \
5993 my_cxt_t *my_cxtp = \
5994 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5995 PERL_UNUSED_VAR(my_cxtp)
5996 # define MY_CXT_INIT_INTERP(my_perl) \
5997 my_cxt_t *my_cxtp = \
5998 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5999 PERL_UNUSED_VAR(my_cxtp)
6001 /* This declaration should be used within all functions that use the
6002 * interpreter-local data. */
6004 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
6005 # define dMY_CXT_INTERP(my_perl) \
6006 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6008 /* Clones the per-interpreter data. */
6009 # define MY_CXT_CLONE \
6010 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
6011 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
6012 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6013 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6017 /* This macro must be used to access members of the my_cxt_t structure.
6018 * e.g. MY_CXT.some_data */
6019 # define MY_CXT (*my_cxtp)
6021 /* Judicious use of these macros can reduce the number of times dMY_CXT
6022 * is used. Use is similar to pTHX, aTHX etc. */
6023 # define pMY_CXT my_cxt_t *my_cxtp
6024 # define pMY_CXT_ pMY_CXT,
6025 # define _pMY_CXT ,pMY_CXT
6026 # define aMY_CXT my_cxtp
6027 # define aMY_CXT_ aMY_CXT,
6028 # define _aMY_CXT ,aMY_CXT
6030 #else /* PERL_IMPLICIT_CONTEXT */
6032 # define START_MY_CXT static my_cxt_t my_cxt;
6033 # define dMY_CXT_SV dNOOP
6034 # define dMY_CXT dNOOP
6035 # define dMY_CXT_INTERP(my_perl) dNOOP
6036 # define MY_CXT_INIT NOOP
6037 # define MY_CXT_CLONE NOOP
6038 # define MY_CXT my_cxt
6040 # define pMY_CXT void
6047 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
6058 # undef FD_CLOEXEC /* a lie in AmigaOS */
6062 # include <sys/file.h>
6065 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
6066 int flock(int fd, int op);
6070 /* Assume UNIX defaults */
6071 # define O_RDONLY 0000
6072 # define O_WRONLY 0001
6073 # define O_RDWR 0002
6074 # define O_CREAT 0100
6085 #if O_TEXT != O_BINARY
6086 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6087 * that is, you are somehow DOSish. */
6088 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6089 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6090 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
6091 /* VOS has O_TEXT != O_BINARY, and they have effect,
6092 * but VOS always uses LF, never CRLF. */
6093 /* If you have O_TEXT different from your O_BINARY but you still are
6094 * not a CRLF shop. */
6095 # undef PERLIO_USING_CRLF
6097 /* If you really are DOSish. */
6098 # define PERLIO_USING_CRLF 1
6103 # include <libutil.h> /* setproctitle() in some FreeBSDs */
6106 #ifndef EXEC_ARGV_CAST
6107 #define EXEC_ARGV_CAST(x) (char **)x
6110 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6111 int). value returned in pointed-
6113 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
6114 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
6115 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
6116 #define IS_NUMBER_INFINITY 0x10 /* this is big */
6117 #define IS_NUMBER_NAN 0x20 /* this is not */
6118 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
6120 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6123 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
6124 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
6125 #define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
6126 #define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6127 numbers which are <= UV_MAX */
6128 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6129 and set IS_NUMBER_TRAILING */
6132 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6134 /* to let user control profiling */
6135 #ifdef PERL_GPROF_CONTROL
6136 extern void moncontrol(int);
6137 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6139 #define PERL_GPROF_MONCONTROL(x)
6146 /* ISO 6429 NEL - C1 control NExt Line */
6147 /* See http://www.unicode.org/unicode/reports/tr13/ */
6148 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
6150 #ifndef PIPESOCK_MODE
6151 # define PIPESOCK_MODE
6154 #ifndef SOCKET_OPEN_MODE
6155 # define SOCKET_OPEN_MODE PIPESOCK_MODE
6158 #ifndef PIPE_OPEN_MODE
6159 # define PIPE_OPEN_MODE PIPESOCK_MODE
6162 #define PERL_MAGIC_UTF8_CACHESIZE 2
6164 #define PERL_UNICODE_STDIN_FLAG 0x0001
6165 #define PERL_UNICODE_STDOUT_FLAG 0x0002
6166 #define PERL_UNICODE_STDERR_FLAG 0x0004
6167 #define PERL_UNICODE_IN_FLAG 0x0008
6168 #define PERL_UNICODE_OUT_FLAG 0x0010
6169 #define PERL_UNICODE_ARGV_FLAG 0x0020
6170 #define PERL_UNICODE_LOCALE_FLAG 0x0040
6171 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
6172 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
6174 #define PERL_UNICODE_STD_FLAG \
6175 (PERL_UNICODE_STDIN_FLAG | \
6176 PERL_UNICODE_STDOUT_FLAG | \
6177 PERL_UNICODE_STDERR_FLAG)
6179 #define PERL_UNICODE_INOUT_FLAG \
6180 (PERL_UNICODE_IN_FLAG | \
6181 PERL_UNICODE_OUT_FLAG)
6183 #define PERL_UNICODE_DEFAULT_FLAGS \
6184 (PERL_UNICODE_STD_FLAG | \
6185 PERL_UNICODE_INOUT_FLAG | \
6186 PERL_UNICODE_LOCALE_FLAG)
6188 #define PERL_UNICODE_ALL_FLAGS 0x01ff
6190 #define PERL_UNICODE_STDIN 'I'
6191 #define PERL_UNICODE_STDOUT 'O'
6192 #define PERL_UNICODE_STDERR 'E'
6193 #define PERL_UNICODE_STD 'S'
6194 #define PERL_UNICODE_IN 'i'
6195 #define PERL_UNICODE_OUT 'o'
6196 #define PERL_UNICODE_INOUT 'D'
6197 #define PERL_UNICODE_ARGV 'A'
6198 #define PERL_UNICODE_LOCALE 'L'
6199 #define PERL_UNICODE_WIDESYSCALLS 'W'
6200 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
6202 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6204 /* Use instead of abs() since abs() forces its argument to be an int,
6205 * but also beware since this evaluates its argument twice, so no x++. */
6206 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6208 #if defined(__DECC) && defined(__osf__)
6209 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
6212 #define do_open(g, n, l, a, rm, rp, sf) \
6213 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
6214 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
6215 # define do_exec(cmd) do_exec3(cmd,0,0)
6218 # define do_aexec Perl_do_aexec
6220 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
6223 /* check embedded \0 characters in pathnames passed to syscalls,
6224 but allow one ending \0 */
6225 #define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
6227 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
6229 #if defined(OEMVS) || defined(__amigaos4__)
6230 #define NO_ENV_ARRAY_IN_MAIN
6233 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
6234 * are here so that they are available throughout the core
6235 * NOTE that even though some are for _escape and some for _pretty
6236 * there must not be any clashes as the flags from _pretty are
6237 * passed straight through to _escape.
6240 #define PERL_PV_ESCAPE_QUOTE 0x000001
6241 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6243 #define PERL_PV_PRETTY_ELLIPSES 0x000002
6244 #define PERL_PV_PRETTY_LTGT 0x000004
6245 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
6247 #define PERL_PV_ESCAPE_UNI 0x000100
6248 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6249 #define PERL_PV_ESCAPE_NONASCII 0x000400
6250 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
6252 #define PERL_PV_ESCAPE_ALL 0x001000
6253 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6254 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
6255 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
6256 #define PERL_PV_ESCAPE_RE 0x008000
6258 #define PERL_PV_ESCAPE_DWIM 0x010000
6261 /* used by pv_display in dump.c*/
6262 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
6263 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
6265 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
6266 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
6267 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
6268 # define DOUBLE_IS_VAX_FLOAT
6270 # define DOUBLE_IS_IEEE_FORMAT
6273 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
6274 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
6275 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6276 # define DOUBLE_LITTLE_ENDIAN
6279 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
6280 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
6281 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6282 # define DOUBLE_BIG_ENDIAN
6285 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
6286 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6287 # define DOUBLE_MIX_ENDIAN
6290 /* The VAX fp formats are neither consistently little-endian nor
6291 * big-endian, and neither are they really IEEE-mixed endian like
6292 * the mixed-endian ARM IEEE formats (with swapped bytes).
6293 * Ultimately, the VAX format came from the PDP-11.
6295 * The ordering of the parts in VAX floats is quite vexing.
6296 * In the below the fraction_n are the mantissa bits.
6298 * The fraction_1 is the most significant (numbering as by DEC/Digital),
6299 * while the rightmost bit in each fraction is the least significant:
6300 * in other words, big-endian bit order within the fractions.
6302 * The fraction segments themselves would be big-endianly, except that
6303 * within 32 bit segments the less significant half comes first, the more
6304 * significant after, except that in the format H (used for long doubles)
6305 * the first fraction segment is alone, because the exponent is wider.
6306 * This means for example that both the most and the least significant
6307 * bits can be in the middle of the floats, not at either end.
6310 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
6311 * http://www.quadibloc.com/comp/cp0201.htm
6312 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
6313 * (somebody at HP should be fired for the URLs)
6315 * F fraction_2:16 sign:1 exp:8 fraction_1:7
6316 * (exponent bias 128, hidden first one-bit)
6318 * D fraction_2:16 sign:1 exp:8 fraction_1:7
6319 * fraction_4:16 fraction_3:16
6320 * (exponent bias 128, hidden first one-bit)
6322 * G fraction_2:16 sign:1 exp:11 fraction_1:4
6323 * fraction_4:16 fraction_3:16
6324 * (exponent bias 1024, hidden first one-bit)
6326 * H fraction_1:16 sign:1 exp:15
6327 * fraction_3:16 fraction_2:16
6328 * fraction_5:16 fraction_4:16
6329 * fraction_7:16 fraction_6:16
6330 * (exponent bias 16384, hidden first one-bit)
6331 * (available only on VAX, and only on Fortran?)
6333 * The formats S, T and X are available on the Alpha (and Itanium,
6334 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
6335 * binary32, binary64, and binary128 (commonly: float, double, long double).
6337 * S sign:1 exp:8 mantissa:23
6338 * (exponent bias 127, hidden first one-bit)
6340 * T sign:1 exp:11 mantissa:52
6341 * (exponent bias 1022, hidden first one-bit)
6343 * X sign:1 exp:15 mantissa:112
6344 * (exponent bias 16382, hidden first one-bit)
6348 #ifdef DOUBLE_IS_VAX_FLOAT
6349 # define DOUBLE_VAX_ENDIAN
6352 #ifdef DOUBLE_IS_IEEE_FORMAT
6353 /* All the basic IEEE formats have the implicit bit,
6354 * except for the x86 80-bit extended formats, which will undef this.
6355 * Also note that the IEEE 754 subnormals (formerly known as denormals)
6356 * do not have the implicit bit of one. */
6357 # define NV_IMPLICIT_BIT
6360 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
6362 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
6363 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6364 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6365 # define LONGDOUBLE_LITTLE_ENDIAN
6368 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
6369 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
6370 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6371 # define LONGDOUBLE_BIG_ENDIAN
6374 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6375 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6376 # define LONGDOUBLE_MIX_ENDIAN
6379 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6380 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6381 # define LONGDOUBLE_X86_80_BIT
6382 # ifdef USE_LONG_DOUBLE
6383 # undef NV_IMPLICIT_BIT
6384 # define NV_X86_80_BIT
6388 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6389 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6390 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6391 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6392 # define LONGDOUBLE_DOUBLEDOUBLE
6395 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
6396 # define LONGDOUBLE_VAX_ENDIAN
6399 #endif /* LONG_DOUBLEKIND */
6401 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
6402 # if defined(DOUBLE_LITTLE_ENDIAN)
6403 # define NV_LITTLE_ENDIAN
6404 # elif defined(DOUBLE_BIG_ENDIAN)
6405 # define NV_BIG_ENDIAN
6406 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
6407 # define NV_MIX_ENDIAN
6409 #elif NVSIZE == DOUBLESIZE
6410 # ifdef DOUBLE_LITTLE_ENDIAN
6411 # define NV_LITTLE_ENDIAN
6413 # ifdef DOUBLE_BIG_ENDIAN
6414 # define NV_BIG_ENDIAN
6416 # ifdef DOUBLE_MIX_ENDIAN
6417 # define NV_MIX_ENDIAN
6419 # ifdef DOUBLE_VAX_ENDIAN
6420 # define NV_VAX_ENDIAN
6422 #elif NVSIZE == LONG_DOUBLESIZE
6423 # ifdef LONGDOUBLE_LITTLE_ENDIAN
6424 # define NV_LITTLE_ENDIAN
6426 # ifdef LONGDOUBLE_BIG_ENDIAN
6427 # define NV_BIG_ENDIAN
6429 # ifdef LONGDOUBLE_MIX_ENDIAN
6430 # define NV_MIX_ENDIAN
6432 # ifdef LONGDOUBLE_VAX_ENDIAN
6433 # define NV_VAX_ENDIAN
6437 /* We have somehow managed not to define the denormal/subnormal
6440 * This may happen if the compiler doesn't expose the C99 math like
6441 * the fpclassify() without some special switches. Perl tries to
6442 * stay C89, so for example -std=c99 is not an option.
6444 * The Perl_isinf() and Perl_isnan() should have been defined even if
6445 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
6446 * from the C89 DBL_MIN or moral equivalent. */
6447 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
6448 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
6451 /* This is not a great fallback: subnormals tests will fail,
6452 * but at least Perl will link and 99.999% of tests will work. */
6453 #if !defined(Perl_fp_class_denorm)
6454 # define Perl_fp_class_denorm(x) FALSE
6457 #ifdef DOUBLE_IS_IEEE_FORMAT
6458 # define DOUBLE_HAS_INF
6459 # define DOUBLE_HAS_NAN
6462 #ifdef DOUBLE_HAS_NAN
6466 /* PL_inf and PL_nan initialization.
6468 * For inf and nan initialization the ultimate fallback is dividing
6469 * one or zero by zero: however, some compilers will warn or even fail
6470 * on divide-by-zero, but hopefully something earlier will work.
6472 * If you are thinking of using HUGE_VAL for infinity, or using
6473 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
6474 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
6475 * and the math functions might be just generating DBL_MAX, or even zero.
6477 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
6478 * Though logically correct, some compilers (like Visual C 2003)
6479 * falsely misoptimize that to zero (x-x is always zero, right?)
6481 * Finally, note that not all floating point formats define Inf (or NaN).
6482 * For the infinity a large number may be used instead. Operations that
6483 * under the IEEE floating point would return Inf or NaN may return
6484 * either large numbers (positive or negative), or they may cause
6485 * a floating point exception or some other fault.
6488 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
6489 GCC_DIAG_IGNORE(-Wc++-compat)
6491 # ifdef USE_QUADMATH
6492 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
6494 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
6495 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
6496 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
6497 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
6498 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
6500 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6501 # if defined(LDBL_INFINITY)
6502 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
6503 # elif defined(LDBL_INF)
6504 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
6505 # elif defined(INFINITY)
6506 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6508 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6510 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
6513 # if defined(DBL_INFINITY)
6514 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
6515 # elif defined(DBL_INF)
6516 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
6517 # elif defined(INFINITY) /* C99 */
6518 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6520 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6522 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
6527 # ifdef USE_QUADMATH
6528 /* Cannot use nanq("0") for PL_nan because not a compile-time
6530 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
6531 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
6532 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
6533 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
6534 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
6536 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6537 # if defined(LDBL_NAN)
6538 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
6539 # elif defined(LDBL_QNAN)
6540 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
6542 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6544 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
6547 # if defined(DBL_NAN)
6548 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
6549 # elif defined(DBL_QNAN)
6550 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
6551 # elif defined(NAN) /* C99 */
6552 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6554 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
6563 INFNAN_NV_U8_DECL PL_inf;
6564 INFNAN_NV_U8_DECL PL_nan;
6568 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
6569 * we will define NV_INF/NV_NAN as the nv part of the global const
6570 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
6571 * might not be a compile-time constant, in which case it cannot be
6572 * used to initialize PL_inf/PL_nan above. */
6574 # define NV_INF PL_inf.nv
6577 # define NV_NAN PL_nan.nv
6580 /* NaNs (not-a-numbers) can carry payload bits, in addition to
6581 * "nan-ness". Part of the payload is the quiet/signaling bit.
6582 * To back up a bit (harhar):
6584 * For IEEE 754 64-bit formats [1]:
6586 * s 000 (mantissa all-zero) zero
6587 * s 000 (mantissa non-zero) subnormals (denormals)
6588 * s 001 ... 7fe normals
6591 * For IEEE 754 128-bit formats:
6593 * s 0000 (mantissa all-zero) zero
6594 * s 0000 (mantissa non-zero) subnormals (denormals)
6595 * s 0001 ... 7ffe normals
6598 * [1] this looks like big-endian, but applies equally to little-endian.
6600 * s = Sign bit. Yes, zeros and nans can have negative sign,
6601 * the interpretation is application-specific.
6603 * q = Quietness bit, the interpretation is platform-specific.
6604 * Most platforms have the most significant bit being one
6605 * meaning quiet, but some (older mips, hppa) have the msb
6606 * being one meaning signaling. Note that the above means
6607 * that on most platforms there cannot be signaling nan with
6608 * zero payload because that is identical with infinity;
6609 * while conversely on older mips/hppa there cannot be a quiet nan
6610 * because that is identical with infinity.
6612 * Moreover, whether there is any behavioral difference
6613 * between quiet and signaling NaNs, depends on the platform.
6615 * x86 80-bit extended precision is different, the mantissa bits:
6617 * 63 62 61 30387+ pre-387 visual c
6618 * -------- ---- -------- --------
6619 * 0 0 0 invalid infinity
6620 * 0 0 1 invalid snan
6621 * 0 1 0 invalid snan
6622 * 0 1 1 invalid snan
6623 * 1 0 0 infinity snan 1.#INF
6624 * 1 0 1 snan 1.#SNAN
6625 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
6626 * 1 1 1 qnan 1.#QNAN
6628 * This means that in this format there are 61 bits available
6629 * for the nan payload.
6631 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
6632 * simply cannot preserve the bit. You can either use the 80-bit
6633 * extended precision (long double, -Duselongdouble), or use x86-64.
6635 * In all platforms, the payload bytes (and bits, some of them are
6636 * often in a partial byte) themselves can be either all zero (x86),
6637 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
6638 * or in a double-double, the first half of the payload can follow the
6639 * native double, while in the second half the payload can be all
6640 * zeros. (Therefore the mask for payload bits is not necessarily
6641 * identical to bit complement of the NaN.) Another way of putting
6642 * this: the payload for the default NaN might not be zero.
6644 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
6645 * being 'packaged' in either 12 or 16 bytes) can be whatever random
6648 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
6649 * On normal floats, the sign bit being on means negative. But this may,
6650 * or may not, be reverted on NaNs: in other words, the default NaN might
6651 * have the sign bit on, and therefore look like negative if you look
6652 * at it at the bit level.
6654 * NaN payloads are not propagated even on copies, or in arithmetics.
6655 * They *might* be, according to some rules, on your particular
6656 * cpu/os/compiler/libraries, but no guarantees.
6658 * To summarize, on most platforms, and for 64-bit doubles
6659 * (using big-endian ordering here):
6661 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
6662 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
6663 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
6664 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
6666 * The C99 nan() is supposed to generate *quiet* NaNs.
6668 * Note the asymmetry:
6669 * The 7FF0000000000000 is positive infinity,
6670 * the FFF0000000000000 is negative infinity.
6673 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
6674 * For the standard IEEE 754 fp this number is usually one less that
6675 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
6676 * real. For the 80-bit extended precision formats (x86*), the number
6677 * of mantissa bits... depends. For normal floats, it's 64. But for
6678 * the inf/nan, it's different (zero for inf, 61 for nan).
6679 * NVMANTBITS works for normal floats. */
6681 /* We do not want to include the quiet/signaling bit. */
6682 #define NV_NAN_BITS (NVMANTBITS - 1)
6684 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6685 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6686 # define NV_NAN_QS_BYTE_OFFSET 13
6687 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6688 # define NV_NAN_QS_BYTE_OFFSET 2
6689 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6690 # define NV_NAN_QS_BYTE_OFFSET 7
6691 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6692 # define NV_NAN_QS_BYTE_OFFSET 2
6693 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6694 # define NV_NAN_QS_BYTE_OFFSET 13
6695 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6696 # define NV_NAN_QS_BYTE_OFFSET 1
6697 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6698 # define NV_NAN_QS_BYTE_OFFSET 9
6699 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6700 # define NV_NAN_QS_BYTE_OFFSET 6
6702 # error "Unexpected long double format"
6705 # ifdef USE_QUADMATH
6706 # ifdef NV_LITTLE_ENDIAN
6707 # define NV_NAN_QS_BYTE_OFFSET 13
6708 # elif defined(NV_BIG_ENDIAN)
6709 # define NV_NAN_QS_BYTE_OFFSET 2
6711 # error "Unexpected quadmath format"
6713 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6714 # define NV_NAN_QS_BYTE_OFFSET 2
6715 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6716 # define NV_NAN_QS_BYTE_OFFSET 1
6717 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6718 # define NV_NAN_QS_BYTE_OFFSET 6
6719 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6720 # define NV_NAN_QS_BYTE_OFFSET 1
6721 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6722 # define NV_NAN_QS_BYTE_OFFSET 13
6723 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6724 # define NV_NAN_QS_BYTE_OFFSET 2
6725 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6726 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
6727 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6728 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
6730 /* For example the VAX formats should never
6731 * get here because they do not have NaN. */
6732 # error "Unexpected double format"
6735 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
6736 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
6737 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
6738 * for the quiet/signaling */
6739 #if defined(USE_LONG_DOUBLE) && \
6740 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6741 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
6742 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
6743 #elif defined(USE_LONG_DOUBLE) && \
6744 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6745 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6746 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6747 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
6748 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
6750 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
6752 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
6753 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
6754 * (bytes ordered big-endianly) for the quiet/signaling bit
6755 * for the quiet/signaling */
6756 #define NV_NAN_QS_BIT_OFFSET \
6757 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
6758 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
6759 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
6760 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
6761 #define NV_NAN_QS_QUIET \
6762 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
6763 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
6764 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
6765 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
6766 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
6767 * Note however that these do not check whether the nvp is a NaN. */
6768 #define NV_NAN_IS_QUIET(nvp) \
6769 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
6770 #define NV_NAN_IS_SIGNALING(nvp) \
6771 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
6772 #define NV_NAN_SET_QUIET(nvp) \
6773 (NV_NAN_QS_QUIET ? \
6774 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
6775 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
6776 #define NV_NAN_SET_SIGNALING(nvp) \
6777 (NV_NAN_QS_QUIET ? \
6778 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
6779 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
6780 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
6782 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
6784 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
6785 * 0xFF means "don't go here".*/
6787 /* Shorthands to avoid typoses. */
6788 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
6789 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
6790 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
6791 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6792 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
6793 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
6794 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
6795 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6796 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
6797 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
6798 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
6799 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
6800 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6801 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
6802 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
6803 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6804 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6805 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
6806 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
6807 NV_NAN_PAYLOAD_PERM_7_TO_0
6808 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
6809 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
6810 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
6811 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
6812 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
6813 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6814 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
6815 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6817 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6818 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6819 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6820 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6821 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6822 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6823 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6824 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6825 # if LONG_DOUBLESIZE == 10
6826 # define NV_NAN_PAYLOAD_MASK \
6827 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6829 # define NV_NAN_PAYLOAD_PERM \
6830 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
6831 # elif LONG_DOUBLESIZE == 12
6832 # define NV_NAN_PAYLOAD_MASK \
6833 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6834 0x00, 0x00, 0x00, 0x00
6835 # define NV_NAN_PAYLOAD_PERM \
6836 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
6837 # elif LONG_DOUBLESIZE == 16
6838 # define NV_NAN_PAYLOAD_MASK \
6839 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6840 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6841 # define NV_NAN_PAYLOAD_PERM \
6842 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6843 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6845 # error "Unexpected x86 80-bit little-endian long double format"
6847 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6848 # if LONG_DOUBLESIZE == 10
6849 # define NV_NAN_PAYLOAD_MASK \
6850 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6852 # define NV_NAN_PAYLOAD_PERM \
6853 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
6854 # elif LONG_DOUBLESIZE == 12
6855 # define NV_NAN_PAYLOAD_MASK \
6856 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6857 0xff, 0xff, 0x00, 0x00
6858 # define NV_NAN_PAYLOAD_PERM \
6859 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
6860 # elif LONG_DOUBLESIZE == 16
6861 # define NV_NAN_PAYLOAD_MASK \
6862 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6863 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6864 # define NV_NAN_PAYLOAD_PERM \
6865 NV_NAN_PAYLOAD_PERM_7_TO_0, \
6866 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6868 # error "Unexpected x86 80-bit big-endian long double format"
6870 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6871 /* For double-double we assume only the first double (in LE or BE terms)
6872 * is used for NaN. */
6873 # define NV_NAN_PAYLOAD_MASK \
6874 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6875 # define NV_NAN_PAYLOAD_PERM \
6876 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6877 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
6878 # define NV_NAN_PAYLOAD_MASK \
6879 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6880 # define NV_NAN_PAYLOAD_PERM \
6881 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6882 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6883 # define NV_NAN_PAYLOAD_MASK \
6884 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6885 # define NV_NAN_PAYLOAD_PERM \
6886 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6887 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6888 # define NV_NAN_PAYLOAD_MASK \
6889 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6890 # define NV_NAN_PAYLOAD_PERM \
6891 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6893 # error "Unexpected long double format"
6896 # ifdef USE_QUADMATH /* quadmath is not long double */
6897 # ifdef NV_LITTLE_ENDIAN
6898 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6899 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6900 # elif defined(NV_BIG_ENDIAN)
6901 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6902 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6904 # error "Unexpected quadmath format"
6906 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6907 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
6908 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
6909 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6910 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
6911 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
6912 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6913 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6914 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6915 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6916 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6917 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6918 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6919 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6920 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6921 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6922 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6923 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6924 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6925 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
6926 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
6927 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6928 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
6929 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
6931 # error "Unexpected double format"
6935 #endif /* DOUBLE_HAS_NAN */
6940 (KEEP THIS LAST IN perl.h!)
6982 so that Configure picks them up.
6984 (KEEP THIS LAST IN perl.h!)
6988 #endif /* Include guard */
6991 * ex: set ts=8 sts=4 sw=4 et: