3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
16 * This file is being used for x2p stuff.
17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
18 * Decouple x2p stuff from some of perls more extreme eccentricities.
23 #endif /* PERL_FOR_X2P */
31 /* this is used for functions which take a depth trailing
32 * argument under debugging */
34 #define _pDEPTH ,U32 depth
35 #define _aDEPTH ,depth
41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
48 defined(_STDC_C99) || defined(__c99)
52 /* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
55 /* XXX NOTE that from here --> to <-- the same logic is
56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
60 # if !defined(MULTIPLICITY)
66 # ifndef PERL_IMPLICIT_CONTEXT
67 # define PERL_IMPLICIT_CONTEXT
71 /* undef WIN32 when building on Cygwin (for libwin32) - gph */
77 /* Use the reentrant APIs like localtime_r and getpwent_r */
78 /* Win32 has naturally threadsafe libraries, no need to use any _r variants.
79 * XXX KEEP makedef.pl copy of this code in sync */
80 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
81 # define USE_REENTRANT_API
84 /* <--- here ends the logic shared by perl.h and makedef.pl */
87 =for apidoc_section Compiler directives
88 =for apidoc AmnUu|void|EXTERN_C
89 When not compiling using C++, expands to nothing.
90 Otherwise is used in a declaration of a function to indicate the function
91 should have external C linkage. This is required for things to work for just
92 about all functions with external linkage compiled into perl.
93 Often, you can use C<L</START_EXTERN_C>> ... C<L</END_EXTERN_C>> blocks
94 surrounding all your code that you need to have this linkage.
98 EXTERN_C int flock(int fd, int op);
100 =for apidoc Amnu||START_EXTERN_C
101 When not compiling using C++, expands to nothing.
102 Otherwise begins a section of code in which every function will effectively
103 have C<L</EXTERN_C>> applied to it, that is to have external C linkage. The
104 section is ended by a C<L</END_EXTERN_C>>.
106 =for apidoc Amnu||END_EXTERN_C
107 When not compiling using C++, expands to nothing.
108 Otherwise ends a section of code already begun by a C<L</START_EXTERN_C>>.
113 #undef START_EXTERN_C
117 # define START_EXTERN_C extern "C" {
118 # define END_EXTERN_C }
119 # define EXTERN_C extern "C"
121 # define START_EXTERN_C
122 # define END_EXTERN_C
123 # define EXTERN_C extern
126 /* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
130 #if !defined(PERL_STATIC_INLINE)
131 # ifdef HAS_STATIC_INLINE
132 # define PERL_STATIC_INLINE static inline
134 # define PERL_STATIC_INLINE static
138 /* this used to be off by default, now its on, see perlio.h */
139 #define PERLIO_FUNCS_CONST
141 #ifdef PERL_IMPLICIT_CONTEXT
142 # ifndef MULTIPLICITY
143 # define MULTIPLICITY
145 # define tTHX PerlInterpreter*
146 # define pTHX tTHX my_perl PERL_UNUSED_DECL
147 # define aTHX my_perl
148 # define aTHXa(a) aTHX = (tTHX)a
149 # define dTHXa(a) pTHX = (tTHX)a
150 # define dTHX pTHX = PERL_GET_THX
163 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
164 # define PERL_TRACK_MEMPOOL
167 # undef PERL_TRACK_MEMPOOL
171 # define dTHX_DEBUGGING dTHX
173 # define dTHX_DEBUGGING dNOOP
176 #define STATIC static
179 /* Do not use these macros. They were part of PERL_OBJECT, which was an
180 * implementation of multiplicity using C++ objects. They have been left
181 * here solely for the sake of XS code which has incorrectly
184 * The only one Devel::PPPort handles is this; list it as deprecated
186 =for apidoc_section Concurrency
187 =for apidoc AmD|void|CPERLscope|void x
192 #define CPERLscope(x) x
193 #define CPERLarg void
196 #define PERL_OBJECT_THIS
197 #define _PERL_OBJECT_THIS
198 #define PERL_OBJECT_THIS_
199 #define CALL_FPTR(fptr) (*fptr)
200 #define MEMBER_TO_FPTR(name) name
201 #endif /* !PERL_CORE */
203 #define CALLRUNOPS PL_runops
205 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
207 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
208 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
209 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
210 (strbeg),(minend),(sv),(data),(flags))
211 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
212 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
213 (strend),(flags),(data))
214 #define CALLREG_INTUIT_STRING(prog) \
215 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
217 #define CALLREGFREE(prog) \
218 Perl_pregfree(aTHX_ (prog))
220 #define CALLREGFREE_PVT(prog) \
221 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
223 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
224 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
226 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
227 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
229 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
230 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
232 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
233 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
235 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
236 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
238 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
239 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
241 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
242 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
244 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
245 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
247 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
248 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
250 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
251 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
253 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
256 #define CALLREG_NAMED_BUFF_COUNT(rx) \
257 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
259 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
260 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
262 #define CALLREG_PACKAGE(rx) \
263 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
265 #if defined(USE_ITHREADS)
266 #define CALLREGDUPE(prog,param) \
267 Perl_re_dup(aTHX_ (prog),(param))
269 #define CALLREGDUPE_PVT(prog,param) \
270 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
274 /* some compilers impersonate gcc */
275 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
276 # define PERL_IS_GCC 1
279 /* In case Configure was not used (we are using a "canned config"
280 * such as Win32, or a cross-compilation setup, for example) try going
281 * by the gcc major and minor versions. One useful URL is
282 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
283 * but contrary to this information warn_unused_result seems
284 * not to be in gcc 3.3.5, at least. --jhi
285 * Also, when building extensions with an installed perl, this allows
286 * the user to upgrade gcc and get the right attributes, rather than
287 * relying on the list generated at Configure time. --AD
288 * Set these up now otherwise we get confused when some of the <*thread.h>
289 * includes below indirectly pull in <perlio.h> (which needs to know if we
290 * have HASATTRIBUTE_FORMAT).
294 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
295 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
296 # define HASATTRIBUTE_DEPRECATED
298 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
299 # define HASATTRIBUTE_FORMAT
300 # if defined __MINGW32__
301 # define PRINTF_FORMAT_NULL_OK
304 # if __GNUC__ >= 3 /* 3.0 -> */
305 # define HASATTRIBUTE_MALLOC
307 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
308 # define HASATTRIBUTE_NONNULL
310 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
311 # define HASATTRIBUTE_NORETURN
313 # if __GNUC__ >= 3 /* gcc 3.0 -> */
314 # define HASATTRIBUTE_PURE
316 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
317 # define HASATTRIBUTE_UNUSED
319 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
320 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
322 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
323 # define HASATTRIBUTE_WARN_UNUSED_RESULT
325 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
326 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
327 # define HASATTRIBUTE_ALWAYS_INLINE
330 #endif /* #ifndef PERL_MICRO */
332 #ifdef HASATTRIBUTE_DEPRECATED
333 # define __attribute__deprecated__ __attribute__((deprecated))
335 #ifdef HASATTRIBUTE_FORMAT
336 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
338 #ifdef HASATTRIBUTE_MALLOC
339 # define __attribute__malloc__ __attribute__((__malloc__))
341 #ifdef HASATTRIBUTE_NONNULL
342 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
344 #ifdef HASATTRIBUTE_NORETURN
345 # define __attribute__noreturn__ __attribute__((noreturn))
347 #ifdef HASATTRIBUTE_PURE
348 # define __attribute__pure__ __attribute__((pure))
350 #ifdef HASATTRIBUTE_UNUSED
351 # define __attribute__unused__ __attribute__((unused))
353 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
354 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
356 #ifdef HASATTRIBUTE_ALWAYS_INLINE
357 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
358 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
359 # define __attribute__always_inline__ __attribute__((always_inline))
363 /* If we haven't defined the attributes yet, define them to blank. */
364 #ifndef __attribute__deprecated__
365 # define __attribute__deprecated__
367 #ifndef __attribute__format__
368 # define __attribute__format__(x,y,z)
370 #ifndef __attribute__malloc__
371 # define __attribute__malloc__
373 #ifndef __attribute__nonnull__
374 # define __attribute__nonnull__(a)
376 #ifndef __attribute__noreturn__
377 # define __attribute__noreturn__
379 #ifndef __attribute__pure__
380 # define __attribute__pure__
382 #ifndef __attribute__unused__
383 # define __attribute__unused__
385 #ifndef __attribute__warn_unused_result__
386 # define __attribute__warn_unused_result__
388 #ifndef __attribute__always_inline__
389 # define __attribute__always_inline__
392 /* Some OS warn on NULL format to printf */
393 #ifdef PRINTF_FORMAT_NULL_OK
394 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
396 # define __attribute__format__null_ok__(x,y,z)
400 * Because of backward compatibility reasons the PERL_UNUSED_DECL
401 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
403 * Note that there are C compilers such as MetroWerks CodeWarrior
404 * which do not have an "inlined" way (like the gcc __attribute__) of
405 * marking unused variables (they need e.g. a #pragma) and therefore
406 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
407 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
409 =for apidoc_section Compiler directives
410 =for apidoc AmnU||PERL_UNUSED_DECL
411 Tells the compiler that the parameter in the function prototype just before it
412 is not necessarily expected to be used in the function. Not that many
413 compilers understand this, so this should only be used in cases where
414 C<L</PERL_UNUSED_ARG>> can't conveniently be used.
421 Perl_perly_sighandler(int sig, Siginfo_t *sip PERL_UNUSED_DECL,
422 void *uap PERL_UNUSED_DECL, bool safe)
429 #ifndef PERL_UNUSED_DECL
430 # define PERL_UNUSED_DECL __attribute__unused__
434 * for silencing unused variables that are actually used most of the time,
435 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
436 * or variables/arguments that are used only in certain configurations.
438 =for apidoc Ams||PERL_UNUSED_ARG|void x
439 This is used to suppress compiler warnings that a parameter to a function is
440 not used. This situation can arise, for example, when a parameter is needed
441 under some configuration conditions, but not others, so that C preprocessor
442 conditional compilation causes it be used just some times.
444 =for apidoc Amns||PERL_UNUSED_CONTEXT
445 This is used to suppress compiler warnings that the thread context parameter to
446 a function is not used. This situation can arise, for example, when a
447 C preprocessor conditional compilation causes it be used just some times.
449 =for apidoc Ams||PERL_UNUSED_VAR|void x
450 This is used to suppress compiler warnings that the variable I<x> is not used.
451 This situation can arise, for example, when a C preprocessor conditional
452 compilation causes it be used just some times.
456 #ifndef PERL_UNUSED_ARG
457 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
459 #ifndef PERL_UNUSED_VAR
460 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
463 #if defined(USE_ITHREADS)
464 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
466 # define PERL_UNUSED_CONTEXT
469 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
470 * g++ allows them but seems to have problems with them
471 * (insane errors ensue).
472 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
474 #if defined(PERL_GCC_PEDANTIC) || \
475 (defined(__GNUC__) && defined(__cplusplus) && \
476 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
477 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
478 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
484 =for apidoc Am||PERL_UNUSED_RESULT|void x
486 This macro indicates to discard the return value of the function call inside
489 PERL_UNUSED_RESULT(foo(a, b))
491 The main reason for this is that the combination of C<gcc -Wunused-result>
492 (part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
493 be silenced with casting to C<void>. This causes trouble when the system
494 header files use the attribute.
496 Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
497 is there for a good reason: you might lose success/failure information,
498 or leak resources, or changes in resources.
500 But sometimes you just want to ignore the return value, I<e.g.>, on
501 codepaths soon ending up in abort, or in "best effort" attempts,
502 or in situations where there is no good way to handle failures.
504 Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
505 another possibility is that you can capture the return value
506 and use C<L</PERL_UNUSED_VAR>> on that.
510 The __typeof__() is used instead of typeof() since typeof() is not
511 available under strict C89, and because of compilers masquerading
512 as gcc (clang and icc), we want exactly the gcc extension
513 __typeof__ and nothing else.
516 #ifndef PERL_UNUSED_RESULT
517 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
518 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
520 # define PERL_UNUSED_RESULT(v) ((void)(v))
524 #if defined(_MSC_VER)
525 /* XXX older MSVC versions have a smallish macro buffer */
526 #define PERL_SMALL_MACRO_BUFFER
529 /* on gcc (and clang), specify that a warning should be temporarily
532 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
534 * GCC_DIAG_RESTORE_DECL;
536 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
538 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
539 * clang only pretends to be GCC 4.2, but still supports push/pop.
541 * Note on usage: all macros must be used at a place where a declaration
542 * or statement can occur, i.e., not in the middle of an expression.
543 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
544 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
545 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
546 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
547 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
548 * and behave syntactically as statements (like NOOP).
552 #if defined(__clang__) || defined(__clang) || \
553 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
554 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
555 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
556 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
557 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
558 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
560 # define GCC_DIAG_IGNORE(w)
561 # define GCC_DIAG_RESTORE
563 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
564 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
565 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
566 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
567 /* for clang specific pragmas */
568 #if defined(__clang__) || defined(__clang)
569 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
570 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
571 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
572 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
574 # define CLANG_DIAG_IGNORE(w)
575 # define CLANG_DIAG_RESTORE
577 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
578 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
579 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
580 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
582 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
583 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
584 __pragma(warning(disable : x))
585 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
587 # define MSVC_DIAG_IGNORE(x)
588 # define MSVC_DIAG_RESTORE
590 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
591 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
592 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
593 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
596 =for apidoc Amns||NOOP
597 Do nothing; typically used as a placeholder to replace something that used to
600 =for apidoc Amns||dNOOP
601 Declare nothing; typically used as a placeholder to replace something that used
602 to declare something. Works on compilers that require declarations before any
607 #define NOOP /*EMPTY*/(void)0
608 #define dNOOP struct Perl___notused_struct
611 /* Don't bother defining tTHX ; using it outside
612 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
618 # define aTHXa(a) NOOP
619 # define dTHXa(a) dNOOP
634 =for apidoc_section Concurrency
635 =for apidoc AmnU||dVAR
636 This is now a synonym for dNOOP: declare nothing
642 /* Backwards compatibility macro for XS code. It used to be part of the
643 * PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
646 /* these are only defined for compatibility; should not be used internally.
650 # define pTHXo_ pTHX_
652 # define aTHXo_ aTHX_
654 # define dTHXoa(x) dTHXa(x)
659 # define pTHXx PerlInterpreter *my_perl
660 # define pTHXx_ pTHXx,
661 # define aTHXx my_perl
662 # define aTHXx_ aTHXx,
666 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
667 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
668 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
669 #ifdef PERL_IMPLICIT_SYS
675 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
676 # ifndef PERL_USE_GCC_BRACE_GROUPS
677 # define PERL_USE_GCC_BRACE_GROUPS
682 =for apidoc_section Compiler directives
683 =for apidoc AmnUu|void|STMT_START
684 =for apidoc_item ||STMT_END
686 This allows a series of statements in a macro to be used as a single statement,
689 if (x) STMT_START { ... } STMT_END else ...
691 Note that you can't return a value out of them, which limits their utility.
692 But see C<L</PERL_USE_GCC_BRACE_GROUPS>>.
694 =for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
696 This C pre-processor value, if defined, indicates that it is permissible to use
697 the GCC brace groups extension. This extension, of the form
701 turns the block consisting of I<statements ...> into an expression with a
702 value, unlike plain C language blocks. This can present optimization
703 possibilities, B<BUT> you generally need to specify an alternative in case this
704 ability doesn't exist or has otherwise been forbidden.
710 #ifdef PERL_USE_GCC_BRACE_GROUPS
720 Trying to select a version that gives no warnings...
722 #if !(defined(STMT_START) && defined(STMT_END))
723 # ifdef PERL_USE_GCC_BRACE_GROUPS
724 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
727 # define STMT_START do
728 # define STMT_END while (0)
732 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
733 # define BYTEORDER 0x1234
736 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
743 * The following contortions are brought to you on behalf of all the
744 * standards, semi-standards, de facto standards, not-so-de-facto standards
745 * of the world, as well as all the other botches anyone ever thought of.
746 * The basic theory is that if we work hard enough here, the rest of the
747 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
750 /* define this once if either system, instead of cluttering up the src */
751 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
755 /* These exist only for back-compat with XS modules. */
758 #define CAN_PROTOTYPE
765 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
766 * you get a perl without taint support, but doubtlessly with a lesser
767 * degree of support. Do not do so unless you know exactly what it means
768 * technically, have a good reason to do so, and know exactly how the
769 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
770 * a potential security risk due to flat out ignoring the security-relevant
771 * taint flags. This being said, a perl without taint support compiled in
772 * has marginal run-time performance benefits.
773 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
774 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
775 * silently ignores -t/-T instead of throwing an exception.
777 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
778 * voids your nonexistent warranty!
780 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
781 # define NO_TAINT_SUPPORT 1
784 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
785 * operations into no-ops for a very modest speed-up. Enable only if you
786 * know what you're doing: tests and CPAN modules' tests are bound to fail.
788 #ifdef NO_TAINT_SUPPORT
790 # define TAINT_NOT NOOP
791 # define TAINT_IF(c) NOOP
792 # define TAINT_ENV() NOOP
793 # define TAINT_PROPER(s) NOOP
794 # define TAINT_set(s) NOOP
796 # define TAINTING_get 0
797 # define TAINTING_set(s) NOOP
798 # define TAINT_WARN_get 0
799 # define TAINT_WARN_set(s) NOOP
801 /* Set to tainted if we are running under tainting mode */
802 # define TAINT (PL_tainted = PL_tainting)
804 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
805 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
806 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
807 /* croak or warn if tainting */
808 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
809 taint_proper(NULL, s); \
811 # define TAINT_set(s) (PL_tainted = (s))
812 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
813 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
814 # define TAINTING_set(s) (PL_tainting = (s))
815 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
819 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
822 /* flags used internally only within pp_subst and pp_substcont */
824 # define SUBST_TAINT_STR 1 /* string tainted */
825 # define SUBST_TAINT_PAT 2 /* pattern tainted */
826 # define SUBST_TAINT_REPL 4 /* replacement tainted */
827 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
828 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
831 /* XXX All process group stuff is handled in pp_sys.c. Should these
832 defines move there? If so, I could simplify this a lot. --AD 9/96.
834 /* Process group stuff changed from traditional BSD to POSIX.
835 perlfunc.pod documents the traditional BSD-style syntax, so we'll
836 try to preserve that, if possible.
839 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
840 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
841 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
842 #elif defined(HAS_SETPGRP2)
843 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
845 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
846 # define HAS_SETPGRP /* Well, effectively it does . . . */
849 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
850 our life easier :-) so we'll try it.
853 # define BSD_GETPGRP(pid) getpgid((pid))
854 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
855 # define BSD_GETPGRP(pid) getpgrp((pid))
856 #elif defined(HAS_GETPGRP2)
857 # define BSD_GETPGRP(pid) getpgrp2((pid))
859 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
860 # define HAS_GETPGRP /* Well, effectively it does . . . */
863 /* These are not exact synonyms, since setpgrp() and getpgrp() may
864 have different behaviors, but perl.h used to define USE_BSDPGRP
865 (prior to 5.003_05) so some extension might depend on it.
867 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
873 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
874 pthread.h must be included before all other header files.
876 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
877 # include <pthread.h>
880 #include <sys/types.h>
896 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
909 # include <xlocale.h>
912 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
913 * functions are available, or 2) just the setlocale() function. This logic is
914 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
916 #if ! defined(NO_LOCALE)
918 # if ! defined(NO_POSIX_2008_LOCALE) \
919 && defined(HAS_NEWLOCALE) \
920 && defined(HAS_USELOCALE) \
921 && defined(HAS_DUPLOCALE) \
922 && defined(HAS_FREELOCALE) \
923 && defined(LC_ALL_MASK)
925 /* For simplicity, the code is written to assume that any platform advanced
926 * enough to have the Posix 2008 locale functions has LC_ALL. The final
927 * test above makes sure that assumption is valid */
929 # define HAS_POSIX_2008_LOCALE
931 # elif defined(HAS_SETLOCALE)
937 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
939 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
940 && defined(HAS_STRXFRM)
941 # define USE_LOCALE_COLLATE
943 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
944 # define USE_LOCALE_CTYPE
946 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
947 # define USE_LOCALE_NUMERIC
949 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
950 # define USE_LOCALE_MESSAGES
952 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
953 # define USE_LOCALE_MONETARY
955 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
956 # define USE_LOCALE_TIME
958 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
959 # define USE_LOCALE_ADDRESS
961 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
962 # define USE_LOCALE_IDENTIFICATION
964 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
965 # define USE_LOCALE_MEASUREMENT
967 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
968 # define USE_LOCALE_PAPER
970 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
971 # define USE_LOCALE_TELEPHONE
973 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
974 # define USE_LOCALE_SYNTAX
976 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
977 # define USE_LOCALE_TOD
980 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
981 * changes here MUST also be made there */
983 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
984 # define USE_POSIX_2008_LOCALE
985 # ifndef USE_THREAD_SAFE_LOCALE
986 # define USE_THREAD_SAFE_LOCALE
989 * -DUSE_THREAD_SAFE_LOCALE, will do so even
990 * on unthreaded builds */
991 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
992 && ( defined(HAS_POSIX_2008_LOCALE) \
993 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
994 && ! defined(NO_THREAD_SAFE_LOCALE)
995 # ifndef USE_THREAD_SAFE_LOCALE
996 # define USE_THREAD_SAFE_LOCALE
998 # ifdef HAS_POSIX_2008_LOCALE
999 # define USE_POSIX_2008_LOCALE
1004 /* Microsoft documentation reads in the change log for VS 2015:
1005 * "The localeconv function declared in locale.h now works correctly when
1006 * per-thread locale is enabled. In previous versions of the library, this
1007 * function would return the lconv data for the global locale, not the
1010 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
1011 # define TS_W32_BROKEN_LOCALECONV
1017 # ifdef PARAM_NEEDS_TYPES
1018 # include <sys/types.h>
1020 # include <sys/param.h>
1023 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
1024 value something like 199306. This may be useful if no more-specific
1025 feature test is available.
1033 /* Use all the "standard" definitions */
1036 /* If this causes problems, set i_unistd=undef in the hint file. */
1038 # if defined(__amigaos4__)
1039 # ifdef I_NETINET_IN
1040 # include <netinet/in.h>
1043 # include <unistd.h>
1044 # if defined(__amigaos4__)
1045 /* Under AmigaOS 4 newlib.library provides an environ. However using
1046 * it doesn't give us enough control over inheritance of variables by
1047 * subshells etc. so replace with custom version based on abc-shell
1049 extern char **myenviron;
1051 # define environ myenviron
1057 # include <sys/wait.h>
1060 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
1061 EXTERN_C int syscall(int, ...);
1064 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
1065 EXTERN_C int usleep(unsigned int);
1068 /* Macros for correct constant construction. These are in C99 <stdint.h>
1069 * (so they will not be available in strict C89 mode), but they are nice, so
1070 * let's define them if necessary.
1071 =for apidoc_section Integer configuration values
1072 =for apidoc Am|I16|INT16_C|number
1073 =for apidoc_item |I32|INT32_C|number
1074 =for apidoc_item |I64|INT64_C|number
1076 Returns a token the C compiler recognizes for the constant C<number> of the
1077 corresponding integer type on the machine.
1079 If the machine does not have a 64-bit type, C<INT64_C> is undefined.
1080 Use C<L</INTMAX_C>> to get the largest type available on the platform.
1082 =for apidoc Am|U16|UINT16_C|number
1083 =for apidoc_item |U32|UINT32_C|number
1084 =for apidoc_item |U64|UINT64_C|number
1086 Returns a token the C compiler recognizes for the constant C<number> of the
1087 corresponding unsigned integer type on the machine.
1089 If the machine does not have a 64-bit type, C<UINT64_C> is undefined.
1090 Use C<L</UINTMAX_C>> to get the largest type available on the platform.
1097 # define UINT16_C(x) ((U16_TYPE)x##U)
1099 # define UINT16_C(x) ((U16_TYPE)x##UL)
1105 # define UINT32_C(x) ((U32_TYPE)x##U)
1107 # define UINT32_C(x) ((U32_TYPE)x##UL)
1112 typedef intmax_t PERL_INTMAX_T;
1113 typedef uintmax_t PERL_UINTMAX_T;
1116 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1117 * actually mean what it has always been documented to mean (see RT #119753)
1118 * and is explicitly turned off outside of core with dire warnings about
1119 * removing the undef. */
1121 #if defined(QUADKIND)
1122 # undef PeRl_INT64_C
1123 # undef PeRl_UINT64_C
1124 /* Prefer the native integer types (int and long) over long long
1125 * (which is not C89) and Win32-specific __int64. */
1126 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1127 # define PeRl_INT64_C(c) (c)
1128 # define PeRl_UINT64_C(c) CAT2(c,U)
1130 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1131 # define PeRl_INT64_C(c) CAT2(c,L)
1132 # define PeRl_UINT64_C(c) CAT2(c,UL)
1134 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1135 # define PeRl_INT64_C(c) CAT2(c,LL)
1136 # define PeRl_UINT64_C(c) CAT2(c,ULL)
1138 # if QUADKIND == QUAD_IS___INT64
1139 # define PeRl_INT64_C(c) CAT2(c,I64)
1140 # define PeRl_UINT64_C(c) CAT2(c,UI64)
1142 # ifndef PeRl_INT64_C
1143 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1144 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1146 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1147 * not fly with C89-pedantic gcc, so let's undefine them first so that
1148 * we can redefine them with our native integer preferring versions. */
1149 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1154 # define INT64_C(c) PeRl_INT64_C(c)
1157 # define UINT64_C(c) PeRl_UINT64_C(c)
1161 =for apidoc_section Integer configuration values
1162 =for apidoc Am||INTMAX_C|number
1163 Returns a token the C compiler recognizes for the constant C<number> of the
1164 widest integer type on the machine. For example, if the machine has C<long
1165 long>s, C<INTMAX_C(-1)> would yield
1169 See also, for example, C<L</INT32_C>>.
1171 Use L</IV> to declare variables of the maximum usable size on this platform.
1173 =for apidoc Am||UINTMAX_C|number
1174 Returns a token the C compiler recognizes for the constant C<number> of the
1175 widest unsigned integer type on the machine. For example, if the machine has
1176 C<long>s, C<UINTMAX_C(1)> would yield
1180 See also, for example, C<L</UINT32_C>>.
1182 Use L</UV> to declare variables of the maximum usable size on this platform.
1188 typedef I64TYPE PERL_INTMAX_T;
1189 typedef U64TYPE PERL_UINTMAX_T;
1192 # define INTMAX_C(c) INT64_C(c)
1195 # define UINTMAX_C(c) UINT64_C(c)
1198 #else /* below QUADKIND is undefined */
1200 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1202 typedef I32TYPE PERL_INTMAX_T;
1203 typedef U32TYPE PERL_UINTMAX_T;
1206 # define INTMAX_C(c) INT32_C(c)
1209 # define UINTMAX_C(c) UINT32_C(c)
1212 #endif /* no QUADKIND */
1216 /* byte-swapping functions for big-/little-endian conversion */
1217 # define _swab_16_(x) ((U16)( \
1218 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1219 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1221 # define _swab_32_(x) ((U32)( \
1222 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1223 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1224 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1225 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1228 # define _swab_64_(x) ((U64)( \
1229 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1230 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1231 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1232 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1233 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1234 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1235 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1236 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1239 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1240 at least on FreeBSD. YMMV, so experiment. */
1241 #ifndef PERL_ARENA_SIZE
1242 #define PERL_ARENA_SIZE 4080
1245 /* Maximum level of recursion */
1246 #ifndef PERL_SUB_DEPTH_WARN
1247 #define PERL_SUB_DEPTH_WARN 100
1250 #endif /* PERL_CORE */
1252 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1253 * It determines the size of local arrays in S_maybe_multiconcat() and
1256 #define PERL_MULTICONCAT_MAXARG 64
1258 /* The indexes of fields of a multiconcat aux struct.
1259 * The fixed fields are followed by nargs+1 const segment lengths,
1260 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1263 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1264 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1265 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1266 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1267 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1268 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1269 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1270 multiconcat header */
1272 /* We no longer default to creating a new SV for GvSV.
1273 Do this before embed. */
1274 #ifndef PERL_CREATE_GVSV
1275 # ifndef PERL_DONT_CREATE_GVSV
1276 # define PERL_DONT_CREATE_GVSV
1280 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1281 #define PERL_USES_PL_PIDSTATUS
1284 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1285 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1288 #define MEM_SIZE Size_t
1290 /* Round all values passed to malloc up, by default to a multiple of
1293 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1294 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1297 /* sv_grow() will expand strings by at least a certain percentage of
1298 the previously *used* length to avoid excessive calls to realloc().
1299 The default is 25% of the current length.
1301 #ifndef PERL_STRLEN_EXPAND_SHIFT
1302 # define PERL_STRLEN_EXPAND_SHIFT 2
1305 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1306 * onwards) when building Socket.xs, but we can just use a different definition
1307 * for STRUCT_OFFSET instead. */
1308 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1309 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1311 # include <stddef.h>
1312 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1315 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1316 * in C89, but apparently there are platforms where it doesn't exist. See
1317 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1319 #ifdef PERL_GCC_PEDANTIC
1320 # undef HAS_PTRDIFF_T
1323 #ifdef HAS_PTRDIFF_T
1324 # define Ptrdiff_t ptrdiff_t
1326 # define Ptrdiff_t SSize_t
1329 # include <string.h>
1331 /* This comes after <stdlib.h> so we don't try to change the standard
1332 * library prototypes; we'll use our own in proto.h instead. */
1335 # ifdef PERL_POLLUTE_MALLOC
1336 # ifndef PERL_EXTMALLOC_DEF
1337 # define Perl_malloc malloc
1338 # define Perl_calloc calloc
1339 # define Perl_realloc realloc
1340 # define Perl_mfree free
1343 # define EMBEDMYMALLOC /* for compatibility */
1346 # define safemalloc Perl_malloc
1347 # define safecalloc Perl_calloc
1348 # define saferealloc Perl_realloc
1349 # define safefree Perl_mfree
1350 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1351 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1354 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1355 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1356 # define panic_write2(s) write(2, s, strlen(s))
1357 # define CHECK_MALLOC_TAINT(newval) \
1358 CHECK_MALLOC_TOO_LATE_FOR_( \
1360 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1362 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1363 if (doing_taint(argc,argv,env)) { \
1364 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1366 #else /* MYMALLOC */
1367 # define safemalloc safesysmalloc
1368 # define safecalloc safesyscalloc
1369 # define saferealloc safesysrealloc
1370 # define safefree safesysfree
1371 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1372 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1373 # define MALLOC_CHECK_TAINT(argc,argv,env)
1374 #endif /* MYMALLOC */
1376 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1377 #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)
1378 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1379 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1380 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1383 # define memzero(d,l) memset(d,0,l)
1387 # include <netinet/in.h>
1391 # include <arpa/inet.h>
1395 # include <sys/stat.h>
1398 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1399 This definition should ideally go into win32/win32.h, but S_IFIFO is
1400 used later here in perl.h before win32/win32.h is being included. */
1401 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1402 # define S_IFIFO _S_IFIFO
1405 /* The stat macros for Unisoft System V/88 (and derivatives
1406 like UTekV) are broken, sometimes giving false positives. Undefine
1407 them here and let the code below set them to proper values.
1409 The ghs macro stands for GreenHills Software C-1.8.5 which
1410 is the C compiler for sysV88 and the various derivatives.
1411 This header file bug is corrected in gcc-2.5.8 and later versions.
1412 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1414 #if defined(m88k) && defined(ghs)
1426 # ifdef I_SYS_TIME_KERNEL
1429 # include <sys/time.h>
1430 # ifdef I_SYS_TIME_KERNEL
1435 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1436 # include <sys/times.h>
1441 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1442 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1445 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1446 # include <sys/socket.h>
1447 # if defined(USE_SOCKS) && defined(I_SOCKS)
1448 # if !defined(INCLUDE_PROTOTYPES)
1449 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1450 # define PERL_SOCKS_NEED_PROTOTYPES
1453 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1454 # undef INCLUDE_PROTOTYPES
1455 # undef PERL_SOCKS_NEED_PROTOTYPES
1466 # include <net/errno.h>
1471 /* sockatmark() is so new (2001) that many places might have it hidden
1472 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1473 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1474 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1475 # if defined(__THROW) && defined(__GLIBC__)
1476 int sockatmark(int) __THROW;
1478 int sockatmark(int);
1482 #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. */
1483 EXTERN_C int fchdir(int);
1484 EXTERN_C int flock(int, int);
1485 EXTERN_C int fseeko(FILE *, off_t, int);
1486 EXTERN_C off_t ftello(FILE *);
1489 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1490 EXTERN_C char *crypt(const char *, const char *);
1493 #if defined(__cplusplus) && defined(__CYGWIN__)
1494 EXTERN_C char *crypt(const char *, const char *);
1498 =for apidoc_section Errno
1500 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1502 Set C<errno>, and on VMS set C<vaxc$errno>.
1504 =for apidoc mn|void|dSAVEDERRNO
1506 Declare variables needed to save C<errno> and any operating system
1507 specific error number.
1509 =for apidoc mn|void|dSAVE_ERRNO
1511 Declare variables needed to save C<errno> and any operating system
1512 specific error number, and save them for optional later restoration
1513 by C<RESTORE_ERRNO>.
1515 =for apidoc mn|void|SAVE_ERRNO
1517 Save C<errno> and any operating system specific error number for
1518 optional later restoration by C<RESTORE_ERRNO>. Requires
1519 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1521 =for apidoc mn|void|RESTORE_ERRNO
1523 Restore C<errno> and any operating system specific error number that
1524 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1530 # undef SETERRNO /* SOCKS might have defined this */
1534 # define SETERRNO(errcode,vmserrcode) \
1536 set_errno(errcode); \
1537 set_vaxc_errno(vmserrcode); \
1539 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1540 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1541 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1542 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1544 # define LIB_INVARG LIB$_INVARG
1545 # define RMS_DIR RMS$_DIR
1546 # define RMS_FAC RMS$_FAC
1547 # define RMS_FEX RMS$_FEX
1548 # define RMS_FNF RMS$_FNF
1549 # define RMS_IFI RMS$_IFI
1550 # define RMS_ISI RMS$_ISI
1551 # define RMS_PRV RMS$_PRV
1552 # define SS_ACCVIO SS$_ACCVIO
1553 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1554 # define SS_IVCHAN SS$_IVCHAN
1555 # define SS_NORMAL SS$_NORMAL
1556 # define SS_NOPRIV SS$_NOPRIV
1557 # define SS_BUFFEROVF SS$_BUFFEROVF
1559 # define LIB_INVARG 0
1567 # define SS_ACCVIO 0
1568 # define SS_DEVOFFLINE 0
1569 # define SS_IVCHAN 0
1570 # define SS_NORMAL 0
1571 # define SS_NOPRIV 0
1572 # define SS_BUFFEROVF 0
1576 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1577 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1578 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1579 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1583 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1584 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1585 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1586 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1590 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1594 # define dSAVEDERRNO int saved_errno
1595 # define dSAVE_ERRNO int saved_errno = errno
1596 # define SAVE_ERRNO (saved_errno = errno)
1597 # define RESTORE_ERRNO (errno = saved_errno)
1601 =for apidoc_section Warning and Dieing
1603 =for apidoc Amn|SV *|ERRSV
1605 Returns the SV for C<$@>, creating it if needed.
1607 =for apidoc Am|void|CLEAR_ERRSV
1609 Clear the contents of C<$@>, setting it to the empty string.
1611 This replaces any read-only SV with a fresh SV and removes any magic.
1613 =for apidoc Am|void|SANE_ERRSV
1615 Clean up ERRSV so we can safely set it.
1617 This replaces any read-only SV with a fresh writable copy and removes
1623 #define ERRSV GvSVn(PL_errgv)
1625 /* contains inlined gv_add_by_type */
1626 #define CLEAR_ERRSV() STMT_START { \
1627 SV ** const svp = &GvSV(PL_errgv); \
1629 *svp = newSVpvs(""); \
1630 } else if (SvREADONLY(*svp)) { \
1631 SvREFCNT_dec_NN(*svp); \
1632 *svp = newSVpvs(""); \
1634 SV *const errsv = *svp; \
1636 SvPOK_only(errsv); \
1637 if (SvMAGICAL(errsv)) { \
1643 /* contains inlined gv_add_by_type */
1644 #define SANE_ERRSV() STMT_START { \
1645 SV ** const svp = &GvSV(PL_errgv); \
1647 *svp = newSVpvs(""); \
1648 } else if (SvREADONLY(*svp)) { \
1649 SV *dupsv = newSVsv(*svp); \
1650 SvREFCNT_dec_NN(*svp); \
1653 SV *const errsv = *svp; \
1654 if (SvMAGICAL(errsv)) { \
1662 # define DEFSV (0 + GvSVn(PL_defgv))
1663 # define DEFSV_set(sv) \
1664 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1665 # define SAVE_DEFSV \
1667 save_gp(PL_defgv, 0), \
1668 GvINTRO_off(PL_defgv), \
1669 SAVEGENERICSV(GvSV(PL_defgv)), \
1670 GvSV(PL_defgv) = NULL \
1673 # define DEFSV GvSVn(PL_defgv)
1674 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1675 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1679 =for apidoc_section SV Handling
1680 =for apidoc Amn|SV *|DEFSV
1681 Returns the SV associated with C<$_>
1683 =for apidoc Am|void|DEFSV_set|SV * sv
1684 Associate C<sv> with C<$_>
1686 =for apidoc Amn|void|SAVE_DEFSV
1687 Localize C<$_>. See L<perlguts/Localizing changes>.
1693 extern int errno; /* ANSI allows errno to be an lvalue expr.
1694 * For example in multithreaded environments
1695 * something like this might happen:
1696 * extern int *_errno(void);
1697 * #define errno (*_errno()) */
1700 #define UNKNOWN_ERRNO_MSG "(unknown)"
1703 #define Strerror(e) strerror((e), vaxc$errno)
1705 #define Strerror(e) strerror(e)
1710 # include <sys/ioctl.h>
1714 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1715 # ifdef HAS_SOCKETPAIR
1716 # undef HAS_SOCKETPAIR
1723 #ifndef HAS_SOCKETPAIR
1725 # define socketpair Perl_my_socketpair
1730 # define htoni htons
1731 # define ntohi ntohs
1733 # define htoni htonl
1734 # define ntohi ntohl
1737 /* Configure already sets Direntry_t */
1738 #if defined(I_DIRENT)
1739 # include <dirent.h>
1740 #elif defined(I_SYS_NDIR)
1741 # include <sys/ndir.h>
1742 #elif defined(I_SYS_DIR)
1743 # include <sys/dir.h>
1747 * The following gobbledygook brought to you on behalf of __STDC__.
1748 * (I could just use #ifndef __STDC__, but this is more bulletproof
1749 * in the face of half-implementations.)
1752 #if defined(I_SYSMODE)
1753 #include <sys/mode.h>
1758 # define S_IFMT _S_IFMT
1760 # define S_IFMT 0170000
1765 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1769 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1774 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1776 # define S_ISBLK(m) (0)
1781 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1786 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1788 # define S_ISFIFO(m) (0)
1794 # define S_ISLNK(m) _S_ISLNK(m)
1795 # elif defined(_S_IFLNK)
1796 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1797 # elif defined(S_IFLNK)
1798 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1800 # define S_ISLNK(m) (0)
1806 # define S_ISSOCK(m) _S_ISSOCK(m)
1807 # elif defined(_S_IFSOCK)
1808 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1809 # elif defined(S_IFSOCK)
1810 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1812 # define S_ISSOCK(m) (0)
1818 # define S_IRUSR S_IREAD
1819 # define S_IWUSR S_IWRITE
1820 # define S_IXUSR S_IEXEC
1822 # define S_IRUSR 0400
1823 # define S_IWUSR 0200
1824 # define S_IXUSR 0100
1830 # define S_IRGRP (S_IRUSR>>3)
1831 # define S_IWGRP (S_IWUSR>>3)
1832 # define S_IXGRP (S_IXUSR>>3)
1834 # define S_IRGRP 0040
1835 # define S_IWGRP 0020
1836 # define S_IXGRP 0010
1842 # define S_IROTH (S_IRUSR>>6)
1843 # define S_IWOTH (S_IWUSR>>6)
1844 # define S_IXOTH (S_IXUSR>>6)
1846 # define S_IROTH 0040
1847 # define S_IWOTH 0020
1848 # define S_IXOTH 0010
1853 # define S_ISUID 04000
1857 # define S_ISGID 02000
1861 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1865 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1869 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1872 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1873 * which would get included through <sys/file.h >, but that is 3000
1874 * lines in the future. --jhi */
1876 #if !defined(S_IREAD) && !defined(__HAIKU__)
1877 # define S_IREAD S_IRUSR
1880 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1881 # define S_IWRITE S_IWUSR
1885 # define S_IEXEC S_IXUSR
1888 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1889 # define SLOPPYDIVIDE
1896 /* This used to be conditionally defined based on whether we had a sprintf()
1897 * that correctly returns the string length (as required by C89), but we no
1898 * longer need that. XS modules can (and do) use this name, so it must remain
1899 * a part of the API that's visible to modules.
1901 =for apidoc_section String Handling
1902 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1904 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1909 #define my_sprintf sprintf
1912 * If we have v?snprintf() and the C99 variadic macros, we can just
1913 * use just the v?snprintf(). It is nice to try to trap the buffer
1914 * overflow, however, so if we are DEBUGGING, and we cannot use the
1915 * gcc statement expressions, then use the function wrappers which try
1916 * to trap the overflow. If we can use the gcc statement expressions,
1917 * we can try that even with the version that uses the C99 variadic
1921 /* Note that we do not check against snprintf()/vsnprintf() returning
1922 * negative values because that is non-standard behaviour and we use
1923 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1924 * that should be true only if the snprintf()/vsnprintf() are true
1925 * to the standard. */
1927 #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
1930 # define my_snprintf Perl_my_snprintf
1931 # define PERL_MY_SNPRINTF_GUARDED
1932 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1933 # ifdef PERL_USE_GCC_BRACE_GROUPS
1934 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1935 # define PERL_MY_SNPRINTF_GUARDED
1937 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1940 # define my_snprintf Perl_my_snprintf
1941 # define PERL_MY_SNPRINTF_GUARDED
1944 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1945 * dies if called under USE_QUADMATH. */
1946 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1947 # ifdef PERL_USE_GCC_BRACE_GROUPS
1948 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1949 # define PERL_MY_VSNPRINTF_GUARDED
1951 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1954 # define my_vsnprintf Perl_my_vsnprintf
1955 # define PERL_MY_VSNPRINTF_GUARDED
1958 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1959 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1960 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1961 * completely ignore it: otherwise you cannot know whether your output
1964 * int len = my_sprintf(buf, max, ...);
1965 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1967 * The trick is that in certain platforms [a] the my_sprintf() already
1968 * contains the sanity check, while in certain platforms [b] it needs
1969 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1970 * platforms the POST_GUARD actually does nothing since the check has
1971 * already been done. Watch out for the max being the same in both calls.
1973 * If you actually use the snprintf/vsnprintf return value already,
1974 * you assumedly are checking its validity somehow. But you can
1975 * insert the POST_GUARD() also in that case. */
1977 #ifndef PERL_MY_SNPRINTF_GUARDED
1978 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1980 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1983 #ifndef PERL_MY_VSNPRINTF_GUARDED
1984 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1986 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1990 # define my_strlcat strlcat
1993 #if defined(PERL_CORE) || defined(PERL_EXT)
1995 # define my_memrchr memrchr
1997 # define my_memrchr S_my_memrchr
2002 # define my_strlcpy strlcpy
2006 # define my_strnlen strnlen
2010 The IV type is supposed to be long enough to hold any integral
2012 --Andy Dougherty August 1996
2018 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
2019 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
2020 # define IV_MAX ((IV)INT64_MAX)
2021 # define IV_MIN ((IV)INT64_MIN)
2022 # define UV_MAX ((UV)UINT64_MAX)
2024 # define UINT64_MIN 0
2026 # define UV_MIN ((UV)UINT64_MIN)
2028 # define IV_MAX PERL_QUAD_MAX
2029 # define IV_MIN PERL_QUAD_MIN
2030 # define UV_MAX PERL_UQUAD_MAX
2031 # define UV_MIN PERL_UQUAD_MIN
2036 # if defined(INT32_MAX) && IVSIZE == 4
2037 # define IV_MAX ((IV)INT32_MAX)
2038 # define IV_MIN ((IV)INT32_MIN)
2039 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
2040 # define UV_MAX ((UV)UINT32_MAX)
2042 # define UV_MAX ((UV)4294967295U)
2045 # define UINT32_MIN 0
2047 # define UV_MIN ((UV)UINT32_MIN)
2049 # define IV_MAX PERL_LONG_MAX
2050 # define IV_MIN PERL_LONG_MIN
2051 # define UV_MAX PERL_ULONG_MAX
2052 # define UV_MIN PERL_ULONG_MIN
2063 #if !defined(PERL_CORE)
2064 /* We think that removing this decade-old undef this will cause too much
2065 breakage on CPAN for too little gain. (See RT #119753)
2066 However, we do need HAS_QUAD in the core for use by the drand48 code. */
2072 #define Size_t_MAX (~(Size_t)0)
2073 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
2075 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
2076 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
2078 #ifndef NO_PERL_PRESERVE_IVUV
2079 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
2083 * The macros INT2PTR and NUM2PTR are (despite their names)
2084 * bi-directional: they will convert int/float to or from pointers.
2085 * However the conversion to int/float are named explicitly:
2086 * PTR2IV, PTR2UV, PTR2NV.
2088 * For int conversions we do not need two casts if pointers are
2089 * the same size as IV and UV. Otherwise we need an explicit
2090 * cast (PTRV) to avoid compiler warnings.
2092 * These are mentioned in perlguts
2094 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2096 # define INT2PTR(any,d) (any)(d)
2097 #elif PTRSIZE == LONGSIZE
2098 # define PTRV unsigned long
2099 # define PTR2ul(p) (unsigned long)(p)
2101 # define PTRV unsigned
2105 # define INT2PTR(any,d) (any)(PTRV)(d)
2109 # define PTR2ul(p) INT2PTR(unsigned long,p)
2112 #define NUM2PTR(any,d) (any)(PTRV)(d)
2113 #define PTR2IV(p) INT2PTR(IV,p)
2114 #define PTR2UV(p) INT2PTR(UV,p)
2115 #define PTR2NV(p) NUM2PTR(NV,p)
2116 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
2118 /* According to strict ANSI C89 one cannot freely cast between
2119 * data pointers and function (code) pointers. There are at least
2120 * two ways around this. One (used below) is to do two casts,
2121 * first the other pointer to an (unsigned) integer, and then
2122 * the integer to the other pointer. The other way would be
2123 * to use unions to "overlay" the pointers. For an example of
2124 * the latter technique, see union dirpu in struct xpvio in sv.h.
2125 * The only feasible use is probably temporarily storing
2126 * function pointers in a data pointer (such as a void pointer). */
2128 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2129 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
2131 #ifdef USE_LONG_DOUBLE
2132 # if LONG_DOUBLESIZE == DOUBLESIZE
2133 # define LONG_DOUBLE_EQUALS_DOUBLE
2134 # undef USE_LONG_DOUBLE /* Ouch! */
2138 /* The following is all to get LDBL_DIG, in order to pick a nice
2139 default value for printing floating point numbers in Gconvert.
2142 #ifndef HAS_LDBL_DIG
2143 # if LONG_DOUBLESIZE == 10
2144 # define LDBL_DIG 18 /* assume IEEE */
2145 # elif LONG_DOUBLESIZE == 12
2146 # define LDBL_DIG 18 /* gcc? */
2147 # elif LONG_DOUBLESIZE == 16
2148 # define LDBL_DIG 33 /* assume IEEE */
2149 # elif LONG_DOUBLESIZE == DOUBLESIZE
2150 # define LDBL_DIG DBL_DIG /* bummer */
2157 # include <ieeefp.h>
2160 #if defined(__DECC) && defined(__osf__)
2161 /* Also Tru64 cc has broken NaN comparisons. */
2162 # define NAN_COMPARE_BROKEN
2165 # define NAN_COMPARE_BROKEN
2168 #ifdef USE_LONG_DOUBLE
2170 # include <sunmath.h>
2172 # if defined(LDBL_DIG)
2173 # define NV_DIG LDBL_DIG
2174 # ifdef LDBL_MANT_DIG
2175 # define NV_MANT_DIG LDBL_MANT_DIG
2178 # define NV_MIN LDBL_MIN
2181 # define NV_MAX LDBL_MAX
2183 # ifdef LDBL_MIN_EXP
2184 # define NV_MIN_EXP LDBL_MIN_EXP
2186 # ifdef LDBL_MAX_EXP
2187 # define NV_MAX_EXP LDBL_MAX_EXP
2189 # ifdef LDBL_MIN_10_EXP
2190 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2192 # ifdef LDBL_MAX_10_EXP
2193 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2195 # ifdef LDBL_EPSILON
2196 # define NV_EPSILON LDBL_EPSILON
2199 # define NV_MAX LDBL_MAX
2200 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2201 # elif defined(HUGE_VALL)
2202 # define NV_MAX HUGE_VALL
2205 # if defined(HAS_SQRTL)
2206 # define Perl_acos acosl
2207 # define Perl_asin asinl
2208 # define Perl_atan atanl
2209 # define Perl_atan2 atan2l
2210 # define Perl_ceil ceill
2211 # define Perl_cos cosl
2212 # define Perl_cosh coshl
2213 # define Perl_exp expl
2214 /* no Perl_fabs, but there's PERL_ABS */
2215 # define Perl_floor floorl
2216 # define Perl_fmod fmodl
2217 # define Perl_log logl
2218 # define Perl_log10 log10l
2219 # define Perl_pow powl
2220 # define Perl_sin sinl
2221 # define Perl_sinh sinhl
2222 # define Perl_sqrt sqrtl
2223 # define Perl_tan tanl
2224 # define Perl_tanh tanhl
2226 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2229 # define Perl_modf(x,y) modfl(x,y)
2230 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2231 prototype in <math.h> */
2232 # ifndef HAS_MODFL_PROTO
2233 EXTERN_C long double modfl(long double, long double *);
2235 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2236 extern long double Perl_my_modfl(long double x, long double *ip);
2237 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2242 # define Perl_frexp(x,y) frexpl(x,y)
2243 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2244 extern long double Perl_my_frexpl(long double x, int *e);
2245 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2250 # define Perl_ldexp(x, y) ldexpl(x,y)
2251 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2252 # define Perl_ldexp(x,y) scalbnl(x,y)
2256 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2257 # define Perl_isnan(x) isnanl(x)
2258 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2259 # define Perl_isnan(x) isnan(x)
2263 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2264 # define Perl_isinf(x) isinfl(x)
2265 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2266 # define Perl_isinf(x) isinf(x)
2267 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2268 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2271 # ifndef Perl_isfinite
2272 # define Perl_isfinite(x) Perl_isfinitel(x)
2274 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2275 # include <quadmath.h>
2276 # define NV_DIG FLT128_DIG
2277 # define NV_MANT_DIG FLT128_MANT_DIG
2278 # define NV_MIN FLT128_MIN
2279 # define NV_MAX FLT128_MAX
2280 # define NV_MIN_EXP FLT128_MIN_EXP
2281 # define NV_MAX_EXP FLT128_MAX_EXP
2282 # define NV_EPSILON FLT128_EPSILON
2283 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2284 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2285 # define Perl_acos acosq
2286 # define Perl_asin asinq
2287 # define Perl_atan atanq
2288 # define Perl_atan2 atan2q
2289 # define Perl_ceil ceilq
2290 # define Perl_cos cosq
2291 # define Perl_cosh coshq
2292 # define Perl_exp expq
2293 /* no Perl_fabs, but there's PERL_ABS */
2294 # define Perl_floor floorq
2295 # define Perl_fmod fmodq
2296 # define Perl_log logq
2297 # define Perl_log10 log10q
2298 # define Perl_signbit signbitq
2299 # define Perl_pow powq
2300 # define Perl_sin sinq
2301 # define Perl_sinh sinhq
2302 # define Perl_sqrt sqrtq
2303 # define Perl_tan tanq
2304 # define Perl_tanh tanhq
2305 # define Perl_modf(x,y) modfq(x,y)
2306 # define Perl_frexp(x,y) frexpq(x,y)
2307 # define Perl_ldexp(x, y) ldexpq(x,y)
2308 # define Perl_isinf(x) isinfq(x)
2309 # define Perl_isnan(x) isnanq(x)
2310 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2311 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2312 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2313 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2314 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2315 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2316 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2318 # define NV_DIG DBL_DIG
2319 # define NV_MANT_DIG DBL_MANT_DIG
2320 # define NV_MIN DBL_MIN
2321 # define NV_MAX DBL_MAX
2322 # define NV_MIN_EXP DBL_MIN_EXP
2323 # define NV_MAX_EXP DBL_MAX_EXP
2324 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2325 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2326 # define NV_EPSILON DBL_EPSILON
2327 # define NV_MAX DBL_MAX
2328 # define NV_MIN DBL_MIN
2330 /* These math interfaces are C89. */
2331 # define Perl_acos acos
2332 # define Perl_asin asin
2333 # define Perl_atan atan
2334 # define Perl_atan2 atan2
2335 # define Perl_ceil ceil
2336 # define Perl_cos cos
2337 # define Perl_cosh cosh
2338 # define Perl_exp exp
2339 /* no Perl_fabs, but there's PERL_ABS */
2340 # define Perl_floor floor
2341 # define Perl_fmod fmod
2342 # define Perl_log log
2343 # define Perl_log10 log10
2344 # define Perl_pow pow
2345 # define Perl_sin sin
2346 # define Perl_sinh sinh
2347 # define Perl_sqrt sqrt
2348 # define Perl_tan tan
2349 # define Perl_tanh tanh
2351 # define Perl_modf(x,y) modf(x,y)
2352 # define Perl_frexp(x,y) frexp(x,y)
2353 # define Perl_ldexp(x,y) ldexp(x,y)
2357 # define Perl_isnan(x) isnan(x)
2361 # if defined(HAS_ISINF)
2362 # define Perl_isinf(x) isinf(x)
2363 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2364 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2367 # ifndef Perl_isfinite
2368 # ifdef HAS_ISFINITE
2369 # define Perl_isfinite(x) isfinite(x)
2370 # elif defined(HAS_FINITE)
2371 # define Perl_isfinite(x) finite(x)
2376 /* fpclassify(): C99. It is supposed to be a macro that switches on
2377 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2378 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2380 # if defined(FP_INFINITE) && defined(FP_NAN)
2381 # define Perl_fp_class(x) fpclassify(x)
2382 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2383 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2384 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2385 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2386 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2387 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2388 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2389 * actually not the C99 fpclassify, with its own set of return defines. */
2390 # define Perl_fp_class(x) fpclassify(x)
2391 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2392 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2393 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2394 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2395 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2396 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2397 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2398 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2399 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2400 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2402 # undef Perl_fp_class /* Unknown set of defines */
2406 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2407 * are identical to the C99 fpclassify(). */
2408 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2411 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2413 /* oh, and the isnormal macro has a typo in it! */
2415 # define isnormal(x) Perl_fp_class_norm(x)
2417 # if defined(FP_INFINITE) && defined(FP_NAN)
2418 # define Perl_fp_class(x) fp_classify(x)
2419 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2420 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2421 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2422 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2423 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2425 # undef Perl_fp_class /* Unknown set of defines */
2429 /* Feel free to check with me for the SGI manpages, SGI testing,
2430 * etcetera, if you want to try getting this to work with IRIX.
2432 * - Allen <allens@cpan.org> */
2434 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2435 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2436 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2437 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2438 * Define some symbols also as cpp symbols so we can detect them. */
2439 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2440 # define FP_PINF FP_PINF
2441 # define FP_QNAN FP_QNAN
2445 # include <ieeefp.h>
2450 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2451 # define Perl_fp_class(x) fpclassl(x)
2453 # define Perl_fp_class(x) fpclass(x)
2455 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2456 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2457 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2458 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2459 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2460 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2461 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2462 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2463 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2464 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2465 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2466 # elif defined(FP_PINF) && defined(FP_QNAN)
2467 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2468 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2469 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2470 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2471 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2472 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2473 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2474 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2475 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2476 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2478 # undef Perl_fp_class /* Unknown set of defines */
2482 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2483 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2485 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2486 # include <fp_class.h>
2488 # if defined(FP_POS_INF) && defined(FP_QNAN)
2489 # ifdef __sgi /* XXX Configure test instead */
2490 # ifdef USE_LONG_DOUBLE
2491 # define Perl_fp_class(x) fp_class_l(x)
2493 # define Perl_fp_class(x) fp_class_d(x)
2496 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2497 # define Perl_fp_class(x) fp_classl(x)
2499 # define Perl_fp_class(x) fp_class(x)
2502 # if defined(FP_POS_INF) && defined(FP_QNAN)
2503 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2504 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2505 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2506 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2507 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2508 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2509 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2510 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2511 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2512 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2514 # undef Perl_fp_class /* Unknown set of defines */
2519 /* class(), _class(): Legacy: AIX. */
2520 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2522 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2524 # define Perl_fp_class(x) class(x)
2526 # define Perl_fp_class(x) _class(x)
2528 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2529 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2530 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2531 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2532 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2533 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2534 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2535 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2536 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2537 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2538 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2540 # undef Perl_fp_class /* Unknown set of defines */
2545 /* Win32: _fpclass(), _isnan(), _finite(). */
2548 # define Perl_isnan(x) _isnan(x)
2550 # ifndef Perl_isfinite
2551 # define Perl_isfinite(x) _finite(x)
2553 # ifndef Perl_fp_class_snan
2554 /* No simple way to #define Perl_fp_class because _fpclass()
2555 * returns a set of bits. */
2556 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2557 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2558 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2559 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2560 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2561 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2562 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2563 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2564 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2565 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2566 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2567 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2568 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2569 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2570 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2574 #if !defined(Perl_fp_class_inf) && \
2575 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2576 # define Perl_fp_class_inf(x) \
2577 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2580 #if !defined(Perl_fp_class_nan) && \
2581 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2582 # define Perl_fp_class_nan(x) \
2583 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2586 #if !defined(Perl_fp_class_zero) && \
2587 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2588 # define Perl_fp_class_zero(x) \
2589 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2592 #if !defined(Perl_fp_class_norm) && \
2593 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2594 # define Perl_fp_class_norm(x) \
2595 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2598 #if !defined(Perl_fp_class_denorm) && \
2599 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2600 # define Perl_fp_class_denorm(x) \
2601 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2605 # ifdef Perl_fp_class_nan
2606 # define Perl_isnan(x) Perl_fp_class_nan(x)
2607 # elif defined(HAS_UNORDERED)
2608 # define Perl_isnan(x) unordered((x), 0.0)
2610 # define Perl_isnan(x) ((x)!=(x))
2615 # ifdef Perl_fp_class_inf
2616 # define Perl_isinf(x) Perl_fp_class_inf(x)
2620 #ifndef Perl_isfinite
2621 # if defined(HAS_ISFINITE) && !defined(isfinite)
2622 # define Perl_isfinite(x) isfinite((double)(x))
2623 # elif defined(HAS_FINITE)
2624 # define Perl_isfinite(x) finite((double)(x))
2625 # elif defined(Perl_fp_class_finite)
2626 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2628 /* For the infinities the multiplication returns nan,
2629 * for the nan the multiplication also returns nan,
2630 * for everything else (that is, finite) zero should be returned. */
2631 # define Perl_isfinite(x) (((x) * 0) == 0)
2636 # if defined(Perl_isfinite) && defined(Perl_isnan)
2637 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2641 /* We need Perl_isfinitel (ends with ell) (if available) even when
2642 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2644 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2645 /* If isfinite() is a macro and looks like we have C99,
2646 * we assume it's the type-aware C99 isfinite(). */
2647 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2648 # define Perl_isfinitel(x) isfinite(x)
2649 # elif defined(HAS_ISFINITEL)
2650 # define Perl_isfinitel(x) isfinitel(x)
2651 # elif defined(HAS_FINITEL)
2652 # define Perl_isfinitel(x) finitel(x)
2653 # elif defined(HAS_INFL) && defined(HAS_NANL)
2654 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2656 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2660 /* The default is to use Perl's own atof() implementation (in numeric.c).
2661 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2662 * it is however best to use the native implementation of atof.
2663 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2664 * Some good tests to try out with either setting are t/base/num.t,
2665 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2666 * you may need to be using a different function than atof! */
2668 #ifndef USE_PERL_ATOF
2670 # define USE_PERL_ATOF
2673 # if USE_PERL_ATOF == 0
2674 # undef USE_PERL_ATOF
2678 #ifdef USE_PERL_ATOF
2679 # define Perl_atof(s) Perl_my_atof(s)
2680 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2682 # define Perl_atof(s) (NV)atof(s)
2683 # define Perl_atof2(s, n) ((n) = atof(s))
2685 #define my_atof2(a,b) my_atof3(a,b,0)
2688 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2689 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2690 * depending on local options. Until Configure detects this (or at least
2691 * detects whether the "signed" keyword is available) the CHAR ranges
2692 * will not be included. UCHAR functions normally.
2696 #define PERL_UCHAR_MIN ((unsigned char)0)
2697 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2699 #define PERL_USHORT_MIN ((unsigned short)0)
2700 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2702 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2703 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2705 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2706 #define PERL_UINT_MIN ((unsigned int)0)
2708 #define PERL_INT_MAX ((int)INT_MAX)
2709 #define PERL_INT_MIN ((int)INT_MIN)
2711 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2712 #define PERL_ULONG_MIN ((unsigned long)0L)
2714 #define PERL_LONG_MAX ((long)LONG_MAX)
2715 #define PERL_LONG_MIN ((long)LONG_MIN)
2718 # define PERL_UQUAD_MAX (~(UV)0)
2719 # define PERL_UQUAD_MIN ((UV)0)
2720 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2721 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2725 =for apidoc_section Integer configuration values
2727 =for apidoc AmnU||PERL_INT_MAX
2728 =for apidoc_item ||PERL_INT_MIN
2729 =for apidoc_item ||PERL_LONG_MAX
2730 =for apidoc_item ||PERL_LONG_MIN
2731 =for apidoc_item ||PERL_SHORT_MAX
2732 =for apidoc_item ||PERL_SHORT_MIN
2733 =for apidoc_item ||PERL_UCHAR_MAX
2734 =for apidoc_item ||PERL_UCHAR_MIN
2735 =for apidoc_item ||PERL_UINT_MAX
2736 =for apidoc_item ||PERL_UINT_MIN
2737 =for apidoc_item ||PERL_ULONG_MAX
2738 =for apidoc_item ||PERL_ULONG_MIN
2739 =for apidoc_item ||PERL_USHORT_MAX
2740 =for apidoc_item ||PERL_USHORT_MIN
2741 =for apidoc_item ||PERL_QUAD_MAX
2742 =for apidoc_item ||PERL_QUAD_MIN
2743 =for apidoc_item ||PERL_UQUAD_MAX
2744 =for apidoc_item ||PERL_UQUAD_MIN
2746 These give the largest and smallest number representable in the current
2747 platform in variables of the corresponding types.
2749 For signed types, the smallest representable number is the most negative
2750 number, the one furthest away from zero.
2752 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2753 are available to the C code. But these constants, furnished by Perl,
2754 allow code compiled on earlier compilers to portably have access to the same
2761 typedef MEM_SIZE STRLEN;
2763 typedef struct op OP;
2764 typedef struct cop COP;
2765 typedef struct unop UNOP;
2766 typedef struct unop_aux UNOP_AUX;
2767 typedef struct binop BINOP;
2768 typedef struct listop LISTOP;
2769 typedef struct logop LOGOP;
2770 typedef struct pmop PMOP;
2771 typedef struct svop SVOP;
2772 typedef struct padop PADOP;
2773 typedef struct pvop PVOP;
2774 typedef struct loop LOOP;
2775 typedef struct methop METHOP;
2778 typedef struct opslab OPSLAB;
2779 typedef struct opslot OPSLOT;
2782 typedef struct block_hooks BHK;
2783 typedef struct custom_op XOP;
2785 typedef struct interpreter PerlInterpreter;
2787 /* SGI's <sys/sema.h> has struct sv */
2789 # define STRUCT_SV perl_sv
2791 # define STRUCT_SV sv
2793 typedef struct STRUCT_SV SV;
2794 typedef struct av AV;
2795 typedef struct hv HV;
2796 typedef struct cv CV;
2797 typedef struct p5rx REGEXP;
2798 typedef struct gp GP;
2799 typedef struct gv GV;
2800 typedef struct io IO;
2801 typedef struct context PERL_CONTEXT;
2802 typedef struct block BLOCK;
2804 typedef struct magic MAGIC;
2805 typedef struct xpv XPV;
2806 typedef struct xpviv XPVIV;
2807 typedef struct xpvuv XPVUV;
2808 typedef struct xpvnv XPVNV;
2809 typedef struct xpvmg XPVMG;
2810 typedef struct xpvlv XPVLV;
2811 typedef struct xpvinvlist XINVLIST;
2812 typedef struct xpvav XPVAV;
2813 typedef struct xpvhv XPVHV;
2814 typedef struct xpvgv XPVGV;
2815 typedef struct xpvcv XPVCV;
2816 typedef struct xpvbm XPVBM;
2817 typedef struct xpvfm XPVFM;
2818 typedef struct xpvio XPVIO;
2819 typedef struct mgvtbl MGVTBL;
2820 typedef union any ANY;
2821 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2822 typedef struct ptr_tbl PTR_TBL_t;
2823 typedef struct clone_params CLONE_PARAMS;
2825 /* a pad is currently just an AV; but that might change,
2826 * so hide the type. */
2827 typedef struct padlist PADLIST;
2829 typedef struct padnamelist PADNAMELIST;
2830 typedef struct padname PADNAME;
2832 /* always enable PERL_OP_PARENT */
2833 #if !defined(PERL_OP_PARENT)
2834 # define PERL_OP_PARENT
2837 /* enable PERL_COPY_ON_WRITE by default */
2838 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2839 # define PERL_COPY_ON_WRITE
2842 #ifdef PERL_COPY_ON_WRITE
2843 # define PERL_ANY_COW
2845 # define PERL_SAWAMPERSAND
2848 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2849 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2853 #include "charclass_invlists.h"
2855 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2856 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2857 # define USE_64_BIT_RAWIO /* implicit */
2861 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2862 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2863 * however, because operating systems like to do that themself. */
2866 # define FSEEKSIZE LSEEKSIZE
2868 # define FSEEKSIZE LONGSIZE
2872 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2873 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2874 # define USE_64_BIT_STDIO /* implicit */
2878 #ifdef USE_64_BIT_RAWIO
2881 # define Off_t off64_t
2883 # define LSEEKSIZE 8
2885 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2886 * will trigger defines like the ones below. Some 64-bit environments,
2887 * however, do not. Therefore we have to explicitly mix and match. */
2888 # if defined(USE_OPEN64)
2889 # define open open64
2891 # if defined(USE_LSEEK64)
2892 # define lseek lseek64
2894 # if defined(USE_LLSEEK)
2895 # define lseek llseek
2898 # if defined(USE_STAT64)
2899 # define stat stat64
2901 # if defined(USE_FSTAT64)
2902 # define fstat fstat64
2904 # if defined(USE_LSTAT64)
2905 # define lstat lstat64
2907 # if defined(USE_FLOCK64)
2908 # define flock flock64
2910 # if defined(USE_LOCKF64)
2911 # define lockf lockf64
2913 # if defined(USE_FCNTL64)
2914 # define fcntl fcntl64
2916 # if defined(USE_TRUNCATE64)
2917 # define truncate truncate64
2919 # if defined(USE_FTRUNCATE64)
2920 # define ftruncate ftruncate64
2924 #ifdef USE_64_BIT_STDIO
2925 # ifdef HAS_FPOS64_T
2927 # define Fpos_t fpos64_t
2929 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2930 * will trigger defines like the ones below. Some 64-bit environments,
2931 * however, do not. */
2932 # if defined(USE_FOPEN64)
2933 # define fopen fopen64
2935 # if defined(USE_FSEEK64)
2936 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2938 # if defined(USE_FTELL64)
2939 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2941 # if defined(USE_FSETPOS64)
2942 # define fsetpos fsetpos64
2944 # if defined(USE_FGETPOS64)
2945 # define fgetpos fgetpos64
2947 # if defined(USE_TMPFILE64)
2948 # define tmpfile tmpfile64
2950 # if defined(USE_FREOPEN64)
2951 # define freopen freopen64
2956 # include "iperlsys.h"
2961 # include "os2ish.h"
2963 # include "dosish.h"
2966 # include "vmsish.h"
2967 #elif defined(PLAN9)
2968 # include "./plan9/plan9ish.h"
2969 #elif defined(__VOS__)
2971 # include "./vos/vosish.h"
2973 # include "vos/vosish.h"
2975 #elif defined(__HAIKU__)
2976 # include "haiku/haikuish.h"
2978 # include "unixish.h"
2982 # include "amigaos.h"
2983 # undef FD_CLOEXEC /* a lie in AmigaOS */
2986 /* NSIG logic from Configure --> */
2989 # define NSIG (_NSIG)
2990 # elif defined(SIGMAX)
2991 # define NSIG (SIGMAX+1)
2992 # elif defined(SIG_MAX)
2993 # define NSIG (SIG_MAX+1)
2994 # elif defined(_SIG_MAX)
2995 # define NSIG (_SIG_MAX+1)
2996 # elif defined(MAXSIG)
2997 # define NSIG (MAXSIG+1)
2998 # elif defined(MAX_SIG)
2999 # define NSIG (MAX_SIG+1)
3000 # elif defined(SIGARRAYSIZE)
3001 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
3002 # elif defined(_sys_nsig)
3003 # define NSIG (_sys_nsig) /* Solaris 2.5 */
3005 /* Default to some arbitrary number that's big enough to get most
3006 * of the common signals. */
3010 /* <-- NSIG logic from Configure */
3012 #ifndef NO_ENVIRON_ARRAY
3013 # define USE_ENVIRON_ARRAY
3017 /* On some platforms it would be safe to use a read/write mutex with many
3018 * readers possible at the same time. On other platforms, notably IBM ones,
3019 * subsequent getenv calls destroy earlier ones. Those platforms would not
3020 * be able to handle simultaneous getenv calls */
3021 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
3022 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
3023 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
3024 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
3026 # define ENV_LOCK NOOP;
3027 # define ENV_UNLOCK NOOP;
3028 # define ENV_INIT NOOP;
3029 # define ENV_TERM NOOP;
3032 /* Some critical sections need to lock both the locale and the environment.
3033 * XXX khw intends to change this to lock both mutexes, but that brings up
3034 * issues of potential deadlock, so should be done at the beginning of a
3035 * development cycle. So for now, it just locks the environment. Note that
3036 * many modern platforms are locale-thread-safe anyway, so locking the locale
3037 * mutex is a no-op anyway */
3038 #define ENV_LOCALE_LOCK ENV_LOCK
3039 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
3041 /* And some critical sections care only that no one else is writing either the
3042 * locale nor the environment. XXX Again this is for the future. This can be
3043 * simulated with using COND_WAIT in thread.h */
3044 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
3045 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
3047 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3048 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
3049 * signal handlers. But the perl core itself only fully supports 1-arg
3050 * handlers, so don't enable for now.
3051 * NB: POSIX::sigaction() supports both.
3053 * # define PERL_USE_3ARG_SIGHANDLER
3058 * This is an alias for the OS's siginfo_t, except that where the OS
3059 * doesn't support it, declare a dummy version instead. This allows us to
3060 * have signal handler functions which always have a Siginfo_t parameter
3061 * regardless of platform, (and which will just be passed a NULL value
3062 * where the OS doesn't support HAS_SIGACTION).
3065 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3066 typedef siginfo_t Siginfo_t;
3068 #ifdef si_signo /* minix */
3078 * initialise to avoid floating-point exceptions from overflow, etc
3080 #ifndef PERL_FPU_INIT
3081 # ifdef HAS_FPSETMASK
3082 # if HAS_FLOATINGPOINT_H
3083 # include <floatingpoint.h>
3085 /* Some operating systems have this as a macro, which in turn expands to a comma
3086 expression, and the last sub-expression is something that gets calculated,
3087 and then they have the gall to warn that a value computed is not used. Hence
3089 # define PERL_FPU_INIT (void)fpsetmask(0)
3090 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3091 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3092 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3093 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
3095 # define PERL_FPU_INIT
3098 #ifndef PERL_FPU_PRE_EXEC
3099 # define PERL_FPU_PRE_EXEC {
3100 # define PERL_FPU_POST_EXEC }
3103 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3104 * We need to reenable the "invalid" trap because otherwise generation
3105 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3106 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3108 # include <machine/fpu.h>
3109 # define PERL_SYS_FPU_INIT \
3111 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3112 signal(SIGFPE, SIG_IGN); \
3115 /* In IRIX the default for Flush to Zero bit is true,
3116 * which means that results going below the minimum of normal
3117 * floating points go to zero, instead of going denormal/subnormal.
3118 * This is unlike almost any other system running Perl, so let's clear it.
3119 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3120 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3122 * XXX The flush-to-zero behaviour should be a Configure scan.
3123 * To change the behaviour usually requires some system-specific
3124 * incantation, though, like the below. */
3126 # include <sys/fpu.h>
3127 # define PERL_SYS_FPU_INIT \
3129 union fpc_csr csr; \
3130 csr.fc_word = get_fpc_csr(); \
3131 csr.fc_struct.flush = 0; \
3132 set_fpc_csr(csr.fc_word); \
3136 #ifndef PERL_SYS_FPU_INIT
3137 # define PERL_SYS_FPU_INIT NOOP
3140 #ifndef PERL_SYS_INIT3_BODY
3141 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
3145 =for apidoc_section Embedding and Interpreter Cloning
3147 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
3148 Provides system-specific tune up of the C runtime environment necessary to
3149 run Perl interpreters. This should be called only once, before creating
3150 any Perl interpreters.
3152 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
3153 Provides system-specific tune up of the C runtime environment necessary to
3154 run Perl interpreters. This should be called only once, before creating
3155 any Perl interpreters.
3157 =for apidoc Am|void|PERL_SYS_TERM|
3158 Provides system-specific clean up of the C runtime environment after
3159 running Perl interpreters. This should be called only once, after
3160 freeing any remaining Perl interpreters.
3165 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3166 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
3167 #define PERL_SYS_TERM() Perl_sys_term()
3169 #ifndef PERL_WRITE_MSG_TO_CONSOLE
3170 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3175 # ifdef _POSIX_PATH_MAX
3176 # if PATH_MAX > _POSIX_PATH_MAX
3177 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3178 * included the null byte or not. Later amendments of POSIX,
3179 * XPG4, the Austin Group, and the Single UNIX Specification
3180 * all explicitly include the null byte in the PATH_MAX.
3181 * Ditto for _POSIX_PATH_MAX. */
3182 # define MAXPATHLEN PATH_MAX
3184 # define MAXPATHLEN _POSIX_PATH_MAX
3187 # define MAXPATHLEN (PATH_MAX+1)
3190 # define MAXPATHLEN 1024 /* Err on the large side. */
3194 /* clang Thread Safety Analysis/Annotations/Attributes
3195 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3197 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3198 * Apple XCode hijacks __clang_major__ and __clang_minor__
3199 * (6.1 means really clang 3.6), so needs extra hijinks
3200 * (could probably also test the contents of __apple_build_version__).
3202 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3203 defined(__clang__) && \
3205 ((!defined(__apple_build_version__) && \
3206 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3207 (__clang_major__ >= 4))) || \
3208 (defined(__apple_build_version__) && \
3209 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3210 (__clang_major__ >= 7))))
3211 # define PERL_TSA__(x) __attribute__((x))
3212 # define PERL_TSA_ACTIVE
3214 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3215 # undef PERL_TSA_ACTIVE
3218 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3219 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3221 #define PERL_TSA_CAPABILITY(x) \
3222 PERL_TSA__(capability(x))
3224 /* In the below examples the mutex must be lexically visible, usually
3225 * either as global variables, or as function arguments. */
3227 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3229 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3231 #define PERL_TSA_GUARDED_BY(x) \
3232 PERL_TSA__(guarded_by(x))
3234 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3235 * The data _behind_ the pointer is guarded.
3237 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3239 #define PERL_TSA_PT_GUARDED_BY(x) \
3240 PERL_TSA__(pt_guarded_by(x))
3242 /* PERL_TSA_REQUIRES() is used to annotate functions.
3243 * The caller MUST hold the resource when calling the function.
3245 * void Foo() PERL_TSA_REQUIRES(mutex);
3247 #define PERL_TSA_REQUIRES(x) \
3248 PERL_TSA__(requires_capability(x))
3250 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3251 * The caller MUST NOT hold resource when calling the function.
3253 * EXCLUDES should be used when the function first acquires
3254 * the resource and then releases it. Use to avoid deadlock.
3256 * void Foo() PERL_TSA_EXCLUDES(mutex);
3258 #define PERL_TSA_EXCLUDES(x) \
3259 PERL_TSA__(locks_excluded(x))
3261 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3262 * The caller MUST NOT hold the resource when calling the function,
3263 * and the function will acquire the resource.
3265 * void Foo() PERL_TSA_ACQUIRE(mutex);
3267 #define PERL_TSA_ACQUIRE(x) \
3268 PERL_TSA__(acquire_capability(x))
3270 /* PERL_TSA_RELEASE() is used to annotate functions.
3271 * The caller MUST hold the resource when calling the function,
3272 * and the function will release the resource.
3274 * void Foo() PERL_TSA_RELEASE(mutex);
3276 #define PERL_TSA_RELEASE(x) \
3277 PERL_TSA__(release_capability(x))
3279 /* PERL_TSA_NO_TSA is used to annotate functions.
3280 * Used when being intentionally unsafe, or when the code is too
3281 * complicated for the analysis. Use sparingly.
3283 * void Foo() PERL_TSA_NO_TSA;
3285 #define PERL_TSA_NO_TSA \
3286 PERL_TSA__(no_thread_safety_analysis)
3288 /* There are more annotations/attributes available, see the clang
3289 * documentation for details. */
3291 #if defined(USE_ITHREADS)
3293 # include <nw5thread.h>
3294 # elif defined(WIN32)
3295 # include <win32thread.h>
3297 # include "os2thread.h"
3298 # elif defined(I_MACH_CTHREADS)
3299 # include <mach/cthreads.h>
3300 typedef cthread_t perl_os_thread;
3301 typedef mutex_t perl_mutex;
3302 typedef condition_t perl_cond;
3303 typedef void * perl_key;
3304 # elif defined(I_PTHREAD) /* Posix threads */
3305 # include <pthread.h>
3306 typedef pthread_t perl_os_thread;
3307 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3308 typedef pthread_cond_t perl_cond;
3309 typedef pthread_key_t perl_key;
3311 #endif /* USE_ITHREADS */
3313 #ifdef PERL_TSA_ACTIVE
3314 /* Since most pthread mutex interfaces have not been annotated, we
3315 * need to have these wrappers. The NO_TSA annotation is quite ugly
3316 * but it cannot be avoided in plain C, unlike in C++, where one could
3317 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3319 * The bodies of these wrappers are in util.c
3321 * TODO: however, some platforms are starting to get these clang
3322 * thread safety annotations for pthreads, for example FreeBSD.
3323 * Do we need a way to a bypass these wrappers? */
3324 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3325 PERL_TSA_ACQUIRE(*mutex)
3327 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3328 PERL_TSA_RELEASE(*mutex)
3337 # include "netware.h"
3340 #define STATUS_UNIX PL_statusvalue
3342 # define STATUS_NATIVE PL_statusvalue_vms
3344 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3345 * its contents can not be trusted. Unfortunately, Perl seems to check
3346 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3349 # include <stsdef.h>
3351 /* Presume this because if VMS changes it, it will require a new
3352 * set of APIs for waiting on children for binary compatibility.
3354 # define child_offset_bits (8)
3355 # ifndef C_FAC_POSIX
3356 # define C_FAC_POSIX 0x35A000
3359 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3360 * platform from the existing UNIX or Native status values.
3363 # define STATUS_EXIT \
3364 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3365 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3368 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3369 * exit code and shifts the UNIX value over the correct number of bits to
3370 * be a child status. Usually the number of bits is 8, but that could be
3371 * platform dependent. The NATIVE status code is presumed to have either
3372 * from a child process.
3375 /* This is complicated. The child processes return a true native VMS
3376 status which must be saved. But there is an assumption in Perl that
3377 the UNIX child status has some relationship to errno values, so
3378 Perl tries to translate it to text in some of the tests.
3379 In order to get the string translation correct, for the error, errno
3380 must be EVMSERR, but that generates a different text message
3381 than what the test programs are expecting. So an errno value must
3382 be derived from the native status value when an error occurs.
3383 That will hide the true native status message. With this version of
3384 perl, the true native child status can always be retrieved so that
3385 is not a problem. But in this case, Pl_statusvalue and errno may
3386 have different values in them.
3389 # define STATUS_NATIVE_CHILD_SET(n) \
3391 I32 evalue = (I32)n; \
3392 if (evalue == EVMSERR) { \
3393 PL_statusvalue_vms = vaxc$errno; \
3394 PL_statusvalue = evalue; \
3396 PL_statusvalue_vms = evalue; \
3397 if (evalue == -1) { \
3398 PL_statusvalue = -1; \
3399 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3401 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3402 set_vaxc_errno(evalue); \
3403 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3404 set_errno(EVMSERR); \
3405 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3406 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3410 # ifdef VMSISH_STATUS
3411 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3413 # define STATUS_CURRENT STATUS_UNIX
3416 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3417 * the NATIVE status to an equivalent value. Can not be used to translate
3418 * exit code values as exit code values are not guaranteed to have any
3419 * relationship at all to errno values.
3420 * This is used when Perl is forcing errno to have a specific value.
3422 # define STATUS_UNIX_SET(n) \
3424 I32 evalue = (I32)n; \
3425 PL_statusvalue = evalue; \
3426 if (PL_statusvalue != -1) { \
3427 if (PL_statusvalue != EVMSERR) { \
3428 PL_statusvalue &= 0xFFFF; \
3429 if (MY_POSIX_EXIT) \
3430 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3431 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3434 PL_statusvalue_vms = vaxc$errno; \
3437 else PL_statusvalue_vms = SS$_ABORT; \
3438 set_vaxc_errno(PL_statusvalue_vms); \
3441 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3442 * the NATIVE error status based on it.
3444 * When in the default mode to comply with the Perl VMS documentation,
3445 * 0 is a success and any other code sets the NATIVE status to a failure
3446 * code of SS$_ABORT.
3448 * In the new POSIX EXIT mode, native status will be set so that the
3449 * actual exit code will can be retrieved by the calling program or
3452 * If the exit code is not clearly a UNIX parent or child exit status,
3453 * it will be passed through as a VMS status.
3456 # define STATUS_UNIX_EXIT_SET(n) \
3458 I32 evalue = (I32)n; \
3459 PL_statusvalue = evalue; \
3460 if (MY_POSIX_EXIT) { \
3461 if (evalue <= 0xFF00) { \
3462 if (evalue > 0xFF) \
3463 evalue = (evalue >> child_offset_bits) & 0xFF; \
3464 PL_statusvalue_vms = \
3465 (C_FAC_POSIX | (evalue << 3 ) | \
3466 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3467 } else /* forgive them Perl, for they have sinned */ \
3468 PL_statusvalue_vms = evalue; \
3471 PL_statusvalue_vms = SS$_NORMAL; \
3472 else if (evalue <= 0xFF00) \
3473 PL_statusvalue_vms = SS$_ABORT; \
3474 else { /* forgive them Perl, for they have sinned */ \
3475 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3476 else PL_statusvalue_vms = vaxc$errno; \
3477 /* And obviously used a VMS status value instead of UNIX */ \
3478 PL_statusvalue = EVMSERR; \
3480 set_vaxc_errno(PL_statusvalue_vms); \
3485 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3486 * and sets the NATIVE error status based on it. This special case
3487 * is needed to maintain compatibility with past VMS behavior.
3489 * In the default mode on VMS, this number is passed through as
3490 * both the NATIVE and UNIX status. Which makes it different
3491 * that the STATUS_UNIX_EXIT_SET.
3493 * In the new POSIX EXIT mode, native status will be set so that the
3494 * actual exit code will can be retrieved by the calling program or
3497 * A POSIX exit code is from 0 to 255. If the exit code is higher
3498 * than this, it needs to be assumed that it is a VMS exit code and
3502 # define STATUS_EXIT_SET(n) \
3504 I32 evalue = (I32)n; \
3505 PL_statusvalue = evalue; \
3506 if (MY_POSIX_EXIT) \
3507 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3508 PL_statusvalue_vms = \
3509 (C_FAC_POSIX | (evalue << 3 ) | \
3510 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3512 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3513 set_vaxc_errno(PL_statusvalue_vms); \
3517 /* This macro forces a success status */
3518 # define STATUS_ALL_SUCCESS \
3519 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3521 /* This macro forces a failure status */
3522 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3523 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3524 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3526 #elif defined(__amigaos4__)
3527 /* A somewhat experimental attempt to simulate posix return code values */
3528 # define STATUS_NATIVE PL_statusvalue_posix
3529 # define STATUS_NATIVE_CHILD_SET(n) \
3531 PL_statusvalue_posix = (n); \
3532 if (PL_statusvalue_posix < 0) { \
3533 PL_statusvalue = -1; \
3536 PL_statusvalue = n << 8; \
3539 # define STATUS_UNIX_SET(n) \
3541 PL_statusvalue = (n); \
3542 if (PL_statusvalue != -1) \
3543 PL_statusvalue &= 0xFFFF; \
3545 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3546 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3547 # define STATUS_CURRENT STATUS_UNIX
3548 # define STATUS_EXIT STATUS_UNIX
3549 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3550 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3553 # define STATUS_NATIVE PL_statusvalue_posix
3554 # if defined(WCOREDUMP)
3555 # define STATUS_NATIVE_CHILD_SET(n) \
3557 PL_statusvalue_posix = (n); \
3558 if (PL_statusvalue_posix == -1) \
3559 PL_statusvalue = -1; \
3562 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3563 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3564 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3567 # elif defined(WIFEXITED)
3568 # define STATUS_NATIVE_CHILD_SET(n) \
3570 PL_statusvalue_posix = (n); \
3571 if (PL_statusvalue_posix == -1) \
3572 PL_statusvalue = -1; \
3575 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3576 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3580 # define STATUS_NATIVE_CHILD_SET(n) \
3582 PL_statusvalue_posix = (n); \
3583 if (PL_statusvalue_posix == -1) \
3584 PL_statusvalue = -1; \
3587 PL_statusvalue_posix & 0xFFFF; \
3591 # define STATUS_UNIX_SET(n) \
3593 PL_statusvalue = (n); \
3594 if (PL_statusvalue != -1) \
3595 PL_statusvalue &= 0xFFFF; \
3597 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3598 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3599 # define STATUS_CURRENT STATUS_UNIX
3600 # define STATUS_EXIT STATUS_UNIX
3601 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3602 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3605 /* flags in PL_exit_flags for nature of exit() */
3606 #define PERL_EXIT_EXPECTED 0x01
3607 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3608 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3609 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3612 /* format to use for version numbers in file/directory names */
3613 /* XXX move to Configure? */
3614 /* This was only ever used for the current version, and that can be done at
3615 compile time, as PERL_FS_VERSION, so should we just delete it? */
3616 # ifndef PERL_FS_VER_FMT
3617 # define PERL_FS_VER_FMT "%d.%d.%d"
3621 #ifndef PERL_FS_VERSION
3622 # define PERL_FS_VERSION PERL_VERSION_STRING
3625 /* This defines a way to flush all output buffers. This may be a
3626 * performance issue, so we allow people to disable it. Also, if
3627 * we are using stdio, there are broken implementations of fflush(NULL)
3628 * out there, Solaris being the most prominent.
3630 #ifndef PERL_FLUSHALL_FOR_CHILD
3631 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3632 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3633 # elif defined(FFLUSH_ALL)
3634 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3636 # define PERL_FLUSHALL_FOR_CHILD NOOP
3640 #ifndef PERL_WAIT_FOR_CHILDREN
3641 # define PERL_WAIT_FOR_CHILDREN NOOP
3644 /* the traditional thread-unsafe notion of "current interpreter". */
3645 #ifndef PERL_SET_INTERP
3646 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3649 #ifndef PERL_GET_INTERP
3650 # define PERL_GET_INTERP (PL_curinterp)
3653 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3654 # ifdef MULTIPLICITY
3655 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3657 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3661 This replaces the previous %_ "hack" by the "%p" hacks.
3662 All that is required is that the perl source does not
3663 use "%-p" or "%-<number>p" or "%<number>p" formats.
3664 These formats will still work in perl code.
3665 See comments in sv.c for further details.
3667 Robin Barker 2005-07-14
3669 No longer use %1p for VDf = %vd. RMB 2007-10-19
3673 # define SVf_(n) "-" STRINGIFY(n) "p"
3681 # define SVf32 SVf_(32)
3685 # define SVf256 SVf_(256)
3688 #define SVfARG(p) ((void*)(p))
3694 /* Not ideal, but we cannot easily include a number in an already-numeric
3695 * format sequence. */
3697 # define HEKf256 "3p"
3700 #define HEKfARG(p) ((void*)(p))
3702 /* Documented in perlguts
3704 * %4p is a custom format
3707 # define UTF8f "d%" UVuf "%4p"
3709 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3712 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3715 /* not used; but needed for backward compatibility with XS code? - RMB */
3721 #if !defined(DEBUGGING) && !defined(NDEBUG)
3726 /* For functions that are marked as __attribute__noreturn__, it's not
3727 appropriate to call return. In either case, include the lint directive.
3729 #ifdef HASATTRIBUTE_NORETURN
3730 # define NORETURN_FUNCTION_END NOT_REACHED;
3732 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3735 #ifdef HAS_BUILTIN_EXPECT
3736 # define EXPECT(expr,val) __builtin_expect(expr,val)
3738 # define EXPECT(expr,val) (expr)
3742 =for apidoc_section Compiler directives
3744 =for apidoc Am||LIKELY|bool expr
3746 Returns the input unchanged, but at the same time it gives a branch prediction
3747 hint to the compiler that this condition is likely to be true.
3749 =for apidoc Am||UNLIKELY|bool expr
3751 Returns the input unchanged, but at the same time it gives a branch prediction
3752 hint to the compiler that this condition is likely to be false.
3756 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3757 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3759 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3763 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3764 time invariants. That is, their argument must be a constant expression that
3765 can be verified by the compiler. This expression can contain anything that's
3766 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3767 the expression evaluates to 0, compilation fails.
3768 Because they generate no runtime code (i.e. their use is "free"), they're
3769 always active, even under non-DEBUGGING builds.
3770 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3771 file scope (outside of any function).
3772 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3775 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3776 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3777 || (__STDC_VERSION__ - 0) >= 201101L)) \
3778 || (defined(__cplusplus) && __cplusplus >= 201103L))
3779 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3780 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3781 matter what <assert.h> says.
3783 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3785 /* We use a bit-field instead of an array because gcc accepts
3786 'typedef char x[n]' where n is not a compile-time constant.
3787 We want to enforce constantness.
3789 # define STATIC_ASSERT_2(COND, SUFFIX) \
3791 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3792 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3793 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3794 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3796 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3797 error (static_assert is a declaration, and only statements can have labels).
3799 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3801 #ifndef __has_builtin
3802 # define __has_builtin(x) 0 /* not a clang style compiler */
3806 =for apidoc Am||ASSUME|bool expr
3807 C<ASSUME> is like C<assert()>, but it has a benefit in a release build. It is a
3808 hint to a compiler about a statement of fact in a function call free
3809 expression, which allows the compiler to generate better machine code. In a
3810 debug build, C<ASSUME(x)> is a synonym for C<assert(x)>. C<ASSUME(0)> means the
3811 control path is unreachable. In a for loop, C<ASSUME> can be used to hint that
3812 a loop will run at least X times. C<ASSUME> is based off MSVC's C<__assume>
3813 intrinsic function, see its documents for more details.
3819 # define ASSUME(x) assert(x)
3820 # if __has_builtin(__builtin_unreachable)
3821 # define HAS_BUILTIN_UNREACHABLE
3822 # elif (defined(__GNUC__) && ( __GNUC__ > 4 \
3823 || __GNUC__ == 4 && __GNUC_MINOR__ >= 5))
3824 # define HAS_BUILTIN_UNREACHABLE
3828 #if defined(__sun) || (defined(__hpux) && !defined(__GNUC__))
3830 # define ASSUME(x) /* ASSUME() generates warnings on Solaris */
3832 # define NOT_REACHED
3833 #elif defined(HAS_BUILTIN_UNREACHABLE)
3835 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3837 # define NOT_REACHED \
3839 ASSUME(!"UNREACHABLE"); __builtin_unreachable(); \
3842 # if defined(_MSC_VER)
3843 # define ASSUME(x) __assume(x)
3844 # elif defined(__ARMCC_VERSION) /* untested */
3845 # define ASSUME(x) __promise(x)
3847 /* a random compiler might define assert to its own special optimization
3848 * token so pass it through to C lib as a last resort */
3849 # define ASSUME(x) assert(x)
3851 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3853 #undef HAS_BUILTIN_UNREACHABLE
3855 /* Some unistd.h's give a prototype for pause() even though
3856 HAS_PAUSE ends up undefined. This causes the #define
3857 below to be rejected by the compiler. Sigh.
3862 #define Pause() sleep((32767<<16)+32767)
3866 # ifdef IOCPARM_MASK
3867 /* on BSDish systems we're safe */
3868 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3869 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3870 /* on Linux systems we're safe; except when we're not [perl #38223] */
3871 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3873 /* otherwise guess at what's safe */
3874 # define IOCPARM_LEN(x) 256
3878 #if defined(__CYGWIN__)
3880 * This symbol, if defined, indicates that the program should
3881 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3882 * that a file is in "binary" mode -- that is, that no translation
3883 * of bytes occurs on read or write operations.
3885 # define USEMYBINMODE /**/
3886 # include <io.h> /* for setmode() prototype */
3887 # define my_binmode(fp, iotype, mode) \
3888 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3892 void init_os_extras(void);
3895 #ifdef UNION_ANY_DEFINITION
3896 UNION_ANY_DEFINITION;
3914 void (*any_dptr) (void*);
3915 void (*any_dxptr) (pTHX_ void*);
3919 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3921 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3922 #define FILTER_DATA(idx) \
3923 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3924 #define FILTER_ISREADER(idx) \
3925 (PL_parser && PL_parser->rsfp_filters \
3926 && idx >= AvFILLp(PL_parser->rsfp_filters))
3927 #define PERL_FILTER_EXISTS(i) \
3928 (PL_parser && PL_parser->rsfp_filters \
3929 && (Size_t) (i) < av_count(PL_parser->rsfp_filters))
3931 #if defined(_AIX) && !defined(_AIX43)
3932 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3933 /* We cannot include <crypt.h> to get the struct crypt_data
3934 * because of setkey prototype problems when threading */
3935 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3936 /* From OSF, Not needed in AIX
3944 #endif /* threading */
3947 #ifndef PERL_CALLCONV
3949 # define PERL_CALLCONV extern "C"
3951 # define PERL_CALLCONV
3954 #ifndef PERL_CALLCONV_NO_RET
3955 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3958 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3959 dont have a noreturn as a declaration specifier
3961 #ifndef PERL_STATIC_NO_RET
3962 # define PERL_STATIC_NO_RET STATIC
3964 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3965 builds that dont have a noreturn as a declaration specifier
3967 #ifndef PERL_STATIC_INLINE_NO_RET
3968 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3971 #ifndef PERL_STATIC_FORCE_INLINE
3972 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3975 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3976 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3980 # include "iperlsys.h"
3983 #ifdef __LIBCATAMOUNT__
3984 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3986 #define FAKE_BIT_BUCKET
3989 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3990 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3991 * Configure, despite their names being similar to other defines like
3992 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3993 * hashes. Therefore to enable/disable the hash randomisation defines
3994 * use the Configure -Accflags=... instead. */
3995 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3996 # define USE_HASH_SEED
4002 /* macros to define bit-fields in structs. */
4003 #ifndef PERL_BITFIELD8
4004 # define PERL_BITFIELD8 U8
4006 #ifndef PERL_BITFIELD16
4007 # define PERL_BITFIELD16 U16
4009 #ifndef PERL_BITFIELD32
4010 # define PERL_BITFIELD32 U32
4020 #include "opnames.h"
4027 #include "warnings.h"
4030 /* these would be in doio.h if there was such a file */
4031 #define my_stat() my_stat_flags(SV_GMAGIC)
4032 #define my_lstat() my_lstat_flags(SV_GMAGIC)
4034 /* defined in sv.c, but also used in [ach]v.c */
4037 #undef _XPVCV_COMMON
4041 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
4043 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) \
4044 || defined(PERL_EXT_RE_BUILD)
4046 /* These have to be predeclared, as they are used in proto.h which is #included
4047 * before their definitions in regcomp.h. */
4050 typedef struct regnode_charclass regnode_charclass;
4052 /* A hopefully less confusing name. The sub-classes are all Posix classes only
4053 * used under /l matching */
4054 typedef struct regnode_charclass_posixl regnode_charclass_class;
4055 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
4057 typedef struct regnode_ssc regnode_ssc;
4058 typedef struct RExC_state_t RExC_state_t;
4059 struct _reg_trie_data;
4063 struct ptr_tbl_ent {
4064 struct ptr_tbl_ent* next;
4070 struct ptr_tbl_ent** tbl_ary;
4073 struct ptr_tbl_arena *tbl_arena;
4074 struct ptr_tbl_ent *tbl_arena_next;
4075 struct ptr_tbl_ent *tbl_arena_end;
4078 #if defined(htonl) && !defined(HAS_HTONL)
4081 #if defined(htons) && !defined(HAS_HTONS)
4084 #if defined(ntohl) && !defined(HAS_NTOHL)
4087 #if defined(ntohs) && !defined(HAS_NTOHS)
4095 # if (BYTEORDER & 0xffff) == 0x4321
4096 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
4097 re-order their values. However, to behave identically to the alternative
4098 implementations, they should truncate to the correct size. */
4099 # define ntohl(x) ((x)&0xFFFFFFFF)
4100 # define htonl(x) ntohl(x)
4101 # define ntohs(x) ((x)&0xFFFF)
4102 # define htons(x) ntohs(x)
4103 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4105 /* Note that we can't straight out declare our own htonl and htons because
4106 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
4107 to avoid the overhead of initialising the socket subsystem, but the headers
4108 that *declare* the various functions are still seen. If we declare our own
4109 htonl etc they will clash with the declarations in the Win32 headers. */
4111 PERL_STATIC_INLINE U32
4112 my_swap32(const U32 x) {
4113 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
4114 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
4117 PERL_STATIC_INLINE U16
4118 my_swap16(const U16 x) {
4119 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
4122 # define htonl(x) my_swap32(x)
4123 # define ntohl(x) my_swap32(x)
4124 # define ntohs(x) my_swap16(x)
4125 # define htons(x) my_swap16(x)
4127 # error "Unsupported byteorder"
4128 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
4129 the error message. Please check the value of the macro BYTEORDER, as defined
4130 in config.h. The values of BYTEORDER we expect are
4132 big endian little endian
4133 32 bit 0x4321 0x1234
4134 64 bit 0x87654321 0x12345678
4136 If you have a system with a different byte order, please see
4137 pod/perlhack.pod for how to submit a patch to add supporting code.
4143 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
4146 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
4147 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
4148 re-order their values. However, to behave identically to the alternative
4149 implementations, they should truncate to the correct size. */
4150 # define vtohl(x) ((x)&0xFFFFFFFF)
4151 # define vtohs(x) ((x)&0xFFFF)
4152 # define htovl(x) vtohl(x)
4153 # define htovs(x) vtohs(x)
4154 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
4155 # define vtohl(x) ((((x)&0xFF)<<24) \
4157 +(((x)&0x0000FF00)<<8) \
4158 +(((x)&0x00FF0000)>>8) )
4159 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
4160 # define htovl(x) vtohl(x)
4161 # define htovs(x) vtohs(x)
4163 # error "Unsupported byteorder"
4164 /* If you have need for current perl on PDP-11 or similar, and can help test
4165 that blead keeps working on a mixed-endian system, then see
4166 pod/perlhack.pod for how to submit patches to things working again. */
4169 /* *MAX Plus 1. A floating point value.
4170 Hopefully expressed in a way that dodgy floating point can't mess up.
4171 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
4173 May find that some broken compiler will want the value cast to I32.
4174 [after the shift, as signed >> may not be as secure as unsigned >>]
4176 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
4177 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
4178 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
4179 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
4180 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
4182 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
4184 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
4185 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4186 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4188 /* This may look like unnecessary jumping through hoops, but converting
4189 out of range floating point values to integers *is* undefined behaviour,
4190 and it is starting to bite.
4192 =for apidoc_section Casting
4193 =for apidoc Am|I32|I_32|NV what
4194 Cast an NV to I32 while avoiding undefined C behavior
4196 =for apidoc Am|U32|U_32|NV what
4197 Cast an NV to U32 while avoiding undefined C behavior
4199 =for apidoc Am|IV|I_V|NV what
4200 Cast an NV to IV while avoiding undefined C behavior
4202 =for apidoc Am|UV|U_V|NV what
4203 Cast an NV to UV while avoiding undefined C behavior
4208 #define I_32(what) (cast_i32((NV)(what)))
4209 #define U_32(what) (cast_ulong((NV)(what)))
4210 #define I_V(what) (cast_iv((NV)(what)))
4211 #define U_V(what) (cast_uv((NV)(what)))
4213 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4214 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4215 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4216 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4217 : ((n) < U32_MAX_P1 ? (U32) (n) \
4218 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4219 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4220 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4221 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4222 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4223 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4224 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4227 #define U_S(what) ((U16)U_32(what))
4228 #define U_I(what) ((unsigned int)U_32(what))
4229 #define U_L(what) U_32(what)
4232 # ifndef Perl_signbit
4233 # define Perl_signbit signbit
4237 /* These do not care about the fractional part, only about the range. */
4238 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4239 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4241 /* Used with UV/IV arguments: */
4242 /* XXXX: need to speed it up */
4243 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4244 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4252 Uid_t getuid (void);
4253 Uid_t geteuid (void);
4254 Gid_t getgid (void);
4255 Gid_t getegid (void);
4259 #ifndef Perl_debug_log
4260 # define Perl_debug_log PerlIO_stderr()
4263 #ifndef Perl_error_log
4264 # define Perl_error_log (PL_stderrgv \
4265 && isGV(PL_stderrgv) \
4266 && GvIOp(PL_stderrgv) \
4267 && IoOFP(GvIOp(PL_stderrgv)) \
4268 ? IoOFP(GvIOp(PL_stderrgv)) \
4273 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4274 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4275 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4276 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4277 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4278 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4279 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4280 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4281 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4282 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4283 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4284 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4285 /* U is reserved for Unofficial, exploratory hacking */
4286 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4288 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4289 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4290 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4291 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4292 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4293 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4294 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4295 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4296 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4297 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4298 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4299 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4300 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4301 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4302 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4303 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4305 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4306 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4308 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4309 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4310 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4311 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4312 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4313 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4314 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4315 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4316 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4317 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4318 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4319 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4320 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4321 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4322 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4323 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4324 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4325 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4326 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4327 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4328 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4329 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4330 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4331 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4332 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4333 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4334 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4335 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4336 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4337 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4338 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4339 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4340 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4344 # define DEBUG_p_TEST DEBUG_p_TEST_
4345 # define DEBUG_s_TEST DEBUG_s_TEST_
4346 # define DEBUG_l_TEST DEBUG_l_TEST_
4347 # define DEBUG_t_TEST DEBUG_t_TEST_
4348 # define DEBUG_o_TEST DEBUG_o_TEST_
4349 # define DEBUG_c_TEST DEBUG_c_TEST_
4350 # define DEBUG_P_TEST DEBUG_P_TEST_
4351 # define DEBUG_m_TEST DEBUG_m_TEST_
4352 # define DEBUG_f_TEST DEBUG_f_TEST_
4353 # define DEBUG_r_TEST DEBUG_r_TEST_
4354 # define DEBUG_x_TEST DEBUG_x_TEST_
4355 # define DEBUG_u_TEST DEBUG_u_TEST_
4356 # define DEBUG_U_TEST DEBUG_U_TEST_
4357 # define DEBUG_X_TEST DEBUG_X_TEST_
4358 # define DEBUG_D_TEST DEBUG_D_TEST_
4359 # define DEBUG_S_TEST DEBUG_S_TEST_
4360 # define DEBUG_T_TEST DEBUG_T_TEST_
4361 # define DEBUG_R_TEST DEBUG_R_TEST_
4362 # define DEBUG_J_TEST DEBUG_J_TEST_
4363 # define DEBUG_v_TEST DEBUG_v_TEST_
4364 # define DEBUG_C_TEST DEBUG_C_TEST_
4365 # define DEBUG_A_TEST DEBUG_A_TEST_
4366 # define DEBUG_q_TEST DEBUG_q_TEST_
4367 # define DEBUG_M_TEST DEBUG_M_TEST_
4368 # define DEBUG_B_TEST DEBUG_B_TEST_
4369 # define DEBUG_L_TEST DEBUG_L_TEST_
4370 # define DEBUG_i_TEST DEBUG_i_TEST_
4371 # define DEBUG_y_TEST DEBUG_y_TEST_
4372 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4373 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4374 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4375 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4376 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4378 # define PERL_DEB(a) a
4379 # define PERL_DEB2(a,b) a
4380 # define PERL_DEBUG(a) if (PL_debug) a
4381 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4382 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4383 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4384 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4385 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4386 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4387 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4389 /* Temporarily turn off memory debugging in case the a
4390 * does memory allocation, either directly or indirectly. */
4391 # define DEBUG_m(a) \
4393 if (PERL_GET_INTERP) { \
4395 if (DEBUG_m_TEST) { \
4396 PL_debug &= ~DEBUG_m_FLAG; \
4398 PL_debug |= DEBUG_m_FLAG; \
4403 # define DEBUG__(t, a) \
4405 if (t) STMT_START {a;} STMT_END; \
4408 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4410 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4411 # ifdef PERL_EXT_RE_BUILD
4412 # define DEBUG_r(a) STMT_START {a;} STMT_END
4414 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4415 # endif /* PERL_EXT_RE_BUILD */
4417 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4418 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4419 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4420 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4421 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4422 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4423 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4424 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4425 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4426 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4428 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4429 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4430 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4431 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4432 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4433 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4434 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4435 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4436 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4437 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4438 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4439 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4441 #else /* ! DEBUGGING below */
4443 # define DEBUG_p_TEST (0)
4444 # define DEBUG_s_TEST (0)
4445 # define DEBUG_l_TEST (0)
4446 # define DEBUG_t_TEST (0)
4447 # define DEBUG_o_TEST (0)
4448 # define DEBUG_c_TEST (0)
4449 # define DEBUG_P_TEST (0)
4450 # define DEBUG_m_TEST (0)
4451 # define DEBUG_f_TEST (0)
4452 # define DEBUG_r_TEST (0)
4453 # define DEBUG_x_TEST (0)
4454 # define DEBUG_u_TEST (0)
4455 # define DEBUG_U_TEST (0)
4456 # define DEBUG_X_TEST (0)
4457 # define DEBUG_D_TEST (0)
4458 # define DEBUG_S_TEST (0)
4459 # define DEBUG_T_TEST (0)
4460 # define DEBUG_R_TEST (0)
4461 # define DEBUG_J_TEST (0)
4462 # define DEBUG_v_TEST (0)
4463 # define DEBUG_C_TEST (0)
4464 # define DEBUG_A_TEST (0)
4465 # define DEBUG_q_TEST (0)
4466 # define DEBUG_M_TEST (0)
4467 # define DEBUG_B_TEST (0)
4468 # define DEBUG_L_TEST (0)
4469 # define DEBUG_i_TEST (0)
4470 # define DEBUG_y_TEST (0)
4471 # define DEBUG_Xv_TEST (0)
4472 # define DEBUG_Uv_TEST (0)
4473 # define DEBUG_Pv_TEST (0)
4474 # define DEBUG_Lv_TEST (0)
4475 # define DEBUG_yv_TEST (0)
4477 # define PERL_DEB(a)
4478 # define PERL_DEB2(a,b) b
4479 # define PERL_DEBUG(a)
4507 # define DEBUG_Xv(a)
4508 # define DEBUG_Uv(a)
4509 # define DEBUG_Pv(a)
4510 # define DEBUG_Lv(a)
4511 # define DEBUG_yv(a)
4512 #endif /* DEBUGGING */
4515 #define DEBUG_SCOPE(where) \
4517 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4518 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4519 __FILE__, __LINE__));
4521 /* Keep the old croak based assert for those who want it, and as a fallback if
4522 the platform is so heretically non-ANSI that it can't assert. */
4524 #define Perl_assert(what) PERL_DEB2( \
4525 ((what) ? ((void) 0) : \
4526 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4527 "\", line %d", STRINGIFY(what), __LINE__), \
4528 (void) 0)), ((void)0))
4530 /* assert() gets defined if DEBUGGING.
4531 * If no DEBUGGING, the <assert.h> has not been included. */
4533 # define assert(what) Perl_assert(what)
4536 # define assert_(what) assert(what),
4538 # define assert_(what)
4542 I32 (*uf_val)(pTHX_ IV, SV*);
4543 I32 (*uf_set)(pTHX_ IV, SV*);
4547 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4548 * XS code wanting to be backward compatible can do something
4549 * like the following:
4551 #ifndef PERL_MG_UFUNC
4552 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4555 static PERL_MG_UFUNC(foo_get, index, val)
4565 #ifndef PERL_MG_UFUNC
4566 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4571 /* isfinite and others are here rather than in math.h as C99 stipulates */
4576 # if !defined(WIN32) && !defined(VMS)
4578 char *crypt (const char*, const char*);
4580 # endif /* !WIN32 */
4583 char *getlogin (void);
4585 # endif /* !WIN32 */
4586 #endif /* !__cplusplus */
4588 /* Fixme on VMS. This needs to be a run-time, not build time options */
4589 /* Also rename() is affected by this */
4590 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4591 #define UNLINK unlnk
4592 I32 unlnk (pTHX_ const char*);
4594 #define UNLINK PerlLIO_unlink
4597 /* some versions of glibc are missing the setresuid() proto */
4598 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4599 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4601 /* some versions of glibc are missing the setresgid() proto */
4602 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4603 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4606 #ifndef HAS_SETREUID
4607 # ifdef HAS_SETRESUID
4608 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4609 # define HAS_SETREUID
4612 #ifndef HAS_SETREGID
4613 # ifdef HAS_SETRESGID
4614 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4615 # define HAS_SETREGID
4619 /* Sighandler_t defined in iperlsys.h */
4621 #ifdef HAS_SIGACTION
4622 typedef struct sigaction Sigsave_t;
4624 typedef Sighandler_t Sigsave_t;
4635 # define RUNOPS_DEFAULT Perl_runops_debug
4637 # define RUNOPS_DEFAULT Perl_runops_standard
4640 #if defined(USE_PERLIO)
4641 EXTERN_C void PerlIO_teardown(void);
4642 # ifdef USE_ITHREADS
4643 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4644 # define PERLIO_TERM \
4646 PerlIO_teardown(); \
4647 MUTEX_DESTROY(&PL_perlio_mutex);\
4650 # define PERLIO_INIT
4651 # define PERLIO_TERM PerlIO_teardown()
4654 # define PERLIO_INIT
4655 # define PERLIO_TERM
4659 # ifdef MUTEX_INIT_CALLS_MALLOC
4660 # define MALLOC_INIT \
4662 PL_malloc_mutex = NULL; \
4663 MUTEX_INIT(&PL_malloc_mutex); \
4665 # define MALLOC_TERM \
4667 perl_mutex tmp = PL_malloc_mutex; \
4668 PL_malloc_mutex = NULL; \
4669 MUTEX_DESTROY(&tmp); \
4672 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4673 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4676 # define MALLOC_INIT
4677 # define MALLOC_TERM
4680 #if defined(PERL_IMPLICIT_CONTEXT)
4682 struct perl_memory_debug_header;
4683 struct perl_memory_debug_header {
4685 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4688 struct perl_memory_debug_header *prev;
4689 struct perl_memory_debug_header *next;
4690 # ifdef PERL_DEBUG_READONLY_COW
4695 #elif defined(PERL_DEBUG_READONLY_COW)
4697 struct perl_memory_debug_header;
4698 struct perl_memory_debug_header {
4704 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4706 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4707 (sizeof(struct perl_memory_debug_header) + \
4708 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4709 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4712 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4715 #ifdef PERL_TRACK_MEMPOOL
4716 # ifdef PERL_DEBUG_READONLY_COW
4717 # define INIT_TRACK_MEMPOOL(header, interp) \
4719 (header).interpreter = (interp); \
4720 (header).prev = (header).next = &(header); \
4721 (header).readonly = 0; \
4724 # define INIT_TRACK_MEMPOOL(header, interp) \
4726 (header).interpreter = (interp); \
4727 (header).prev = (header).next = &(header); \
4731 # define INIT_TRACK_MEMPOOL(header, interp)
4734 #ifdef I_MALLOCMALLOC
4735 /* Needed for malloc_size(), malloc_good_size() on some systems */
4736 # include <malloc/malloc.h>
4740 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4742 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4743 # ifdef PERL_TRACK_MEMPOOL
4744 # define Perl_safesysmalloc_size(where) \
4745 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4747 # define Perl_safesysmalloc_size(where) malloc_size(where)
4750 # ifdef HAS_MALLOC_GOOD_SIZE
4751 # ifdef PERL_TRACK_MEMPOOL
4752 # define Perl_malloc_good_size(how_much) \
4753 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4755 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4758 /* Having this as the identity operation makes some code simpler. */
4759 # define Perl_malloc_good_size(how_much) (how_much)
4763 typedef int (*runops_proc_t)(pTHX);
4764 typedef void (*share_proc_t) (pTHX_ SV *sv);
4765 typedef int (*thrhook_proc_t) (pTHX);
4766 typedef OP* (*PPADDR_t[]) (pTHX);
4767 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4768 typedef void (*despatch_signals_proc_t) (pTHX);
4770 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4771 # include <crt_externs.h> /* for the env array */
4772 # define environ (*_NSGetEnviron())
4773 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4774 /* VMS and some other platforms don't use the environ array */
4775 EXTERN_C char **environ; /* environment variables supplied via exec */
4778 #define PERL_PATCHLEVEL_H_IMPLICIT
4779 #include "patchlevel.h"
4780 #undef PERL_PATCHLEVEL_H_IMPLICIT
4782 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4783 STRINGIFY(PERL_VERSION) "." \
4784 STRINGIFY(PERL_SUBVERSION)
4786 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4787 STRINGIFY(PERL_API_VERSION) "." \
4788 STRINGIFY(PERL_API_SUBVERSION)
4792 /* handy constants */
4793 EXTCONST char PL_warn_uninit[]
4794 INIT("Use of uninitialized value%s%s%s");
4795 EXTCONST char PL_warn_uninit_sv[]
4796 INIT("Use of uninitialized value%" SVf "%s%s");
4797 EXTCONST char PL_warn_nosemi[]
4798 INIT("Semicolon seems to be missing");
4799 EXTCONST char PL_warn_reserved[]
4800 INIT("Unquoted string \"%s\" may clash with future reserved word");
4801 EXTCONST char PL_warn_nl[]
4802 INIT("Unsuccessful %s on filename containing newline");
4803 EXTCONST char PL_no_wrongref[]
4804 INIT("Can't use %s ref as %s ref");
4805 /* The core no longer needs this here. If you require the string constant,
4806 please inline a copy into your own code. */
4807 EXTCONST char PL_no_symref[] __attribute__deprecated__
4808 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4809 EXTCONST char PL_no_symref_sv[]
4810 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4812 EXTCONST char PL_no_usym[]
4813 INIT("Can't use an undefined value as %s reference");
4814 EXTCONST char PL_no_aelem[]
4815 INIT("Modification of non-creatable array value attempted, subscript %d");
4816 EXTCONST char PL_no_helem_sv[]
4817 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4818 EXTCONST char PL_no_modify[]
4819 INIT("Modification of a read-only value attempted");
4820 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4821 INIT("Out of memory!\n");
4822 EXTCONST char PL_no_security[]
4823 INIT("Insecure dependency in %s%s");
4824 EXTCONST char PL_no_sock_func[]
4825 INIT("Unsupported socket function \"%s\" called");
4826 EXTCONST char PL_no_dir_func[]
4827 INIT("Unsupported directory function \"%s\" called");
4828 EXTCONST char PL_no_func[]
4829 INIT("The %s function is unimplemented");
4830 EXTCONST char PL_no_myglob[]
4831 INIT("\"%s\" %s %s can't be in a package");
4832 EXTCONST char PL_no_localize_ref[]
4833 INIT("Can't localize through a reference");
4834 EXTCONST char PL_memory_wrap[]
4835 INIT("panic: memory wrap");
4836 EXTCONST char PL_extended_cp_format[]
4837 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4838 " and so is not portable");
4839 EXTCONST char PL_Yes[]
4841 EXTCONST char PL_No[]
4843 EXTCONST char PL_Zero[]
4847 =for apidoc_section Numeric Functions
4848 =for apidoc AmTuU|const char *|PL_hexdigit|U8 value
4850 This array, indexed by an integer, converts that value into the character that
4851 represents it. For example, if the input is 8, the return will be a string
4852 whose first character is '8'. What is actually returned is a pointer into a
4853 string. All you are interested in is the first character of that string. To
4854 get uppercase letters (for the values 10..15), add 16 to the index. Hence,
4855 C<PL_hexdigit[11]> is C<'b'>, and C<PL_hexdigit[11+16]> is C<'B'>. Adding 16
4856 to an index whose representation is '0'..'9' yields the same as not adding 16.
4857 Indices outside the range 0..31 result in (bad) undedefined behavior.
4861 EXTCONST char PL_hexdigit[]
4862 INIT("0123456789abcdef0123456789ABCDEF");
4864 EXTCONST STRLEN PL_WARN_ALL
4866 EXTCONST STRLEN PL_WARN_NONE
4869 /* This is constant on most architectures, a global on OS/2 */
4871 EXTCONST char PL_sh_path[]
4872 INIT(SH_PATH); /* full path of shell */
4876 EXTCONST char PL_cshname[]
4878 # define PL_cshlen (sizeof(CSH "") - 1)
4881 /* These are baked at compile time into any shared perl library.
4882 In future releases this will allow us in main() to sanity test the
4883 library we're linking against. */
4885 EXTCONST U8 PL_revision
4886 INIT(PERL_REVISION);
4887 EXTCONST U8 PL_version
4889 EXTCONST U8 PL_subversion
4890 INIT(PERL_SUBVERSION);
4892 EXTCONST char PL_uuemap[65]
4893 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4895 /* a special string address whose value is "isa", but which perl knows
4896 * to treat as if it were really "DOES" when printing the method name in
4897 * the "Can't call method '%s'" error message */
4898 EXTCONST char PL_isa_DOES[]
4902 EXTCONST char PL_uudmap[256] =
4904 # include "uuudmap.h"
4906 # include "uudmap.h"
4909 EXTCONST char PL_bitcount[256] =
4911 # include "ubitcount.h"
4913 # include "bitcount.h"
4916 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4917 EXTCONST int PL_sig_num[] = { SIG_NUM };
4919 EXTCONST char PL_uudmap[256];
4920 EXTCONST char PL_bitcount[256];
4921 EXTCONST char* const PL_sig_name[];
4922 EXTCONST int PL_sig_num[];
4925 /* fast conversion and case folding tables. The folding tables complement the
4926 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4927 * folds such as outside the range or to multiple characters. */
4932 /* The EBCDIC fold table depends on the code page, and hence is found in
4933 * ebcdic_tables.h */
4935 EXTCONST unsigned char PL_fold[] = {
4936 0, 1, 2, 3, 4, 5, 6, 7,
4937 8, 9, 10, 11, 12, 13, 14, 15,
4938 16, 17, 18, 19, 20, 21, 22, 23,
4939 24, 25, 26, 27, 28, 29, 30, 31,
4940 32, 33, 34, 35, 36, 37, 38, 39,
4941 40, 41, 42, 43, 44, 45, 46, 47,
4942 48, 49, 50, 51, 52, 53, 54, 55,
4943 56, 57, 58, 59, 60, 61, 62, 63,
4944 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4945 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4946 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4947 'x', 'y', 'z', 91, 92, 93, 94, 95,
4948 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4949 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4950 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4951 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4952 128, 129, 130, 131, 132, 133, 134, 135,
4953 136, 137, 138, 139, 140, 141, 142, 143,
4954 144, 145, 146, 147, 148, 149, 150, 151,
4955 152, 153, 154, 155, 156, 157, 158, 159,
4956 160, 161, 162, 163, 164, 165, 166, 167,
4957 168, 169, 170, 171, 172, 173, 174, 175,
4958 176, 177, 178, 179, 180, 181, 182, 183,
4959 184, 185, 186, 187, 188, 189, 190, 191,
4960 192, 193, 194, 195, 196, 197, 198, 199,
4961 200, 201, 202, 203, 204, 205, 206, 207,
4962 208, 209, 210, 211, 212, 213, 214, 215,
4963 216, 217, 218, 219, 220, 221, 222, 223,
4964 224, 225, 226, 227, 228, 229, 230, 231,
4965 232, 233, 234, 235, 236, 237, 238, 239,
4966 240, 241, 242, 243, 244, 245, 246, 247,
4967 248, 249, 250, 251, 252, 253, 254, 255
4970 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4971 0, 1, 2, 3, 4, 5, 6, 7,
4972 8, 9, 10, 11, 12, 13, 14, 15,
4973 16, 17, 18, 19, 20, 21, 22, 23,
4974 24, 25, 26, 27, 28, 29, 30, 31,
4975 32, 33, 34, 35, 36, 37, 38, 39,
4976 40, 41, 42, 43, 44, 45, 46, 47,
4977 48, 49, 50, 51, 52, 53, 54, 55,
4978 56, 57, 58, 59, 60, 61, 62, 63,
4979 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4980 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4981 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4982 'x', 'y', 'z', 91, 92, 93, 94, 95,
4983 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4984 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4985 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4986 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4987 128, 129, 130, 131, 132, 133, 134, 135,
4988 136, 137, 138, 139, 140, 141, 142, 143,
4989 144, 145, 146, 147, 148, 149, 150, 151,
4990 152, 153, 154, 155, 156, 157, 158, 159,
4991 160, 161, 162, 163, 164, 165, 166, 167,
4992 168, 169, 170, 171, 172, 173, 174, 175,
4993 176, 177, 178, 179, 180, 181, 182, 183,
4994 184, 185, 186, 187, 188, 189, 190, 191,
4995 192, 193, 194, 195, 196, 197, 198, 199,
4996 200, 201, 202, 203, 204, 205, 206, 207,
4997 208, 209, 210, 211, 212, 213, 214, 215,
4998 216, 217, 218, 219, 220, 221, 222, 223,
4999 224, 225, 226, 227, 228, 229, 230, 231,
5000 232, 233, 234, 235, 236, 237, 238, 239,
5001 240, 241, 242, 243, 244, 245, 246, 247,
5002 248, 249, 250, 251, 252, 253, 254, 255
5005 EXTCONST unsigned char PL_fold_latin1[] = {
5006 /* Full latin1 complement folding, except for three problematic code points:
5007 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
5008 * fold complements outside the Latin1 range, so can't match something
5009 * that isn't in utf8.
5010 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
5011 * not one, so can't be represented in this table.
5013 * All have to be specially handled */
5014 0, 1, 2, 3, 4, 5, 6, 7,
5015 8, 9, 10, 11, 12, 13, 14, 15,
5016 16, 17, 18, 19, 20, 21, 22, 23,
5017 24, 25, 26, 27, 28, 29, 30, 31,
5018 32, 33, 34, 35, 36, 37, 38, 39,
5019 40, 41, 42, 43, 44, 45, 46, 47,
5020 48, 49, 50, 51, 52, 53, 54, 55,
5021 56, 57, 58, 59, 60, 61, 62, 63,
5022 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5023 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5024 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5025 'x', 'y', 'z', 91, 92, 93, 94, 95,
5026 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5027 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5028 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5029 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5030 128, 129, 130, 131, 132, 133, 134, 135,
5031 136, 137, 138, 139, 140, 141, 142, 143,
5032 144, 145, 146, 147, 148, 149, 150, 151,
5033 152, 153, 154, 155, 156, 157, 158, 159,
5034 160, 161, 162, 163, 164, 165, 166, 167,
5035 168, 169, 170, 171, 172, 173, 174, 175,
5036 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
5037 184, 185, 186, 187, 188, 189, 190, 191,
5038 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5039 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5040 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5041 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
5042 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5043 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5044 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5045 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
5046 255 /* y with diaeresis */
5049 /* If these tables are accessed through ebcdic, the access will be converted to
5051 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
5052 0, 1, 2, 3, 4, 5, 6, 7,
5053 8, 9, 10, 11, 12, 13, 14, 15,
5054 16, 17, 18, 19, 20, 21, 22, 23,
5055 24, 25, 26, 27, 28, 29, 30, 31,
5056 32, 33, 34, 35, 36, 37, 38, 39,
5057 40, 41, 42, 43, 44, 45, 46, 47,
5058 48, 49, 50, 51, 52, 53, 54, 55,
5059 56, 57, 58, 59, 60, 61, 62, 63,
5060 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
5061 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
5062 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
5063 'x', 'y', 'z', 91, 92, 93, 94, 95,
5064 96, 97, 98, 99, 100, 101, 102, 103,
5065 104, 105, 106, 107, 108, 109, 110, 111,
5066 112, 113, 114, 115, 116, 117, 118, 119,
5067 120, 121, 122, 123, 124, 125, 126, 127,
5068 128, 129, 130, 131, 132, 133, 134, 135,
5069 136, 137, 138, 139, 140, 141, 142, 143,
5070 144, 145, 146, 147, 148, 149, 150, 151,
5071 152, 153, 154, 155, 156, 157, 158, 159,
5072 160, 161, 162, 163, 164, 165, 166, 167,
5073 168, 169, 170, 171, 172, 173, 174, 175,
5074 176, 177, 178, 179, 180, 181, 182, 183,
5075 184, 185, 186, 187, 188, 189, 190, 191,
5076 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
5077 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
5078 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
5079 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
5080 224, 225, 226, 227, 228, 229, 230, 231,
5081 232, 233, 234, 235, 236, 237, 238, 239,
5082 240, 241, 242, 243, 244, 245, 246, 247,
5083 248, 249, 250, 251, 252, 253, 254, 255
5086 /* upper and title case of latin1 characters, modified so that the three tricky
5087 * ones are mapped to 255 (which is one of the three) */
5088 EXTCONST unsigned char PL_mod_latin1_uc[] = {
5089 0, 1, 2, 3, 4, 5, 6, 7,
5090 8, 9, 10, 11, 12, 13, 14, 15,
5091 16, 17, 18, 19, 20, 21, 22, 23,
5092 24, 25, 26, 27, 28, 29, 30, 31,
5093 32, 33, 34, 35, 36, 37, 38, 39,
5094 40, 41, 42, 43, 44, 45, 46, 47,
5095 48, 49, 50, 51, 52, 53, 54, 55,
5096 56, 57, 58, 59, 60, 61, 62, 63,
5097 64, 65, 66, 67, 68, 69, 70, 71,
5098 72, 73, 74, 75, 76, 77, 78, 79,
5099 80, 81, 82, 83, 84, 85, 86, 87,
5100 88, 89, 90, 91, 92, 93, 94, 95,
5101 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
5102 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
5103 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
5104 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
5105 128, 129, 130, 131, 132, 133, 134, 135,
5106 136, 137, 138, 139, 140, 141, 142, 143,
5107 144, 145, 146, 147, 148, 149, 150, 151,
5108 152, 153, 154, 155, 156, 157, 158, 159,
5109 160, 161, 162, 163, 164, 165, 166, 167,
5110 168, 169, 170, 171, 172, 173, 174, 175,
5111 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
5112 184, 185, 186, 187, 188, 189, 190, 191,
5113 192, 193, 194, 195, 196, 197, 198, 199,
5114 200, 201, 202, 203, 204, 205, 206, 207,
5115 208, 209, 210, 211, 212, 213, 214, 215,
5116 216, 217, 218, 219, 220, 221, 222,
5117 # if UNICODE_MAJOR_VERSION > 2 \
5118 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
5119 && UNICODE_DOT_DOT_VERSION >= 8)
5121 # else /* uc(sharp s) is 'sharp s' itself in early unicode */
5124 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
5125 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
5126 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
5127 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
5129 # endif /* !EBCDIC, but still in DOINIT */
5130 #else /* ! DOINIT */
5132 EXTCONST unsigned char PL_fold[];
5133 EXTCONST unsigned char PL_fold_latin1[];
5134 EXTCONST unsigned char PL_mod_latin1_uc[];
5135 EXTCONST unsigned char PL_latin1_lc[];
5136 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
5140 /* Although only used for debugging, these constants must be available in
5141 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5142 * which has DEBUGGING enabled always */
5144 EXTCONST char* const PL_block_type[] = {
5160 EXTCONST char* PL_block_type[];
5163 /* These are all the compile time options that affect binary compatibility.
5164 Other compile time options that are binary compatible are in perl.c
5165 (in S_Internals_V()). Both are combined for the output of perl -V
5166 However, this string will be embedded in any shared perl library, which will
5167 allow us add a comparison check in perlmain.c in the near future. */
5169 EXTCONST char PL_bincompat_options[] =
5170 # ifdef DEBUG_LEAKING_SCALARS
5171 " DEBUG_LEAKING_SCALARS"
5173 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5174 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5179 # ifdef HAVE_INTERP_INTERN
5180 " HAVE_INTERP_INTERN"
5182 # ifdef MULTIPLICITY
5188 # ifdef PERLIO_LAYERS
5191 # ifdef PERL_DEBUG_READONLY_COW
5192 " PERL_DEBUG_READONLY_COW"
5194 # ifdef PERL_DEBUG_READONLY_OPS
5195 " PERL_DEBUG_READONLY_OPS"
5197 # ifdef PERL_IMPLICIT_CONTEXT
5198 " PERL_IMPLICIT_CONTEXT"
5200 # ifdef PERL_IMPLICIT_SYS
5201 " PERL_IMPLICIT_SYS"
5209 # ifdef PERL_SAWAMPERSAND
5210 " PERL_SAWAMPERSAND"
5212 # ifdef PERL_TRACK_MEMPOOL
5213 " PERL_TRACK_MEMPOOL"
5215 # ifdef PERL_USES_PL_PIDSTATUS
5216 " PERL_USES_PL_PIDSTATUS"
5218 # ifdef USE_64_BIT_ALL
5221 # ifdef USE_64_BIT_INT
5227 # ifdef USE_ITHREADS
5230 # ifdef USE_LARGE_FILES
5233 # ifdef USE_LOCALE_COLLATE
5234 " USE_LOCALE_COLLATE"
5236 # ifdef USE_LOCALE_NUMERIC
5237 " USE_LOCALE_NUMERIC"
5239 # ifdef USE_LOCALE_TIME
5242 # ifdef USE_LONG_DOUBLE
5248 # ifdef USE_QUADMATH
5251 # ifdef USE_REENTRANT_API
5252 " USE_REENTRANT_API"
5257 # ifdef VMS_DO_SOCKETS
5260 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5261 " VMS_SHORTEN_LONG_SYMBOLS"
5263 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5264 " VMS_SYMBOL_CASE_AS_IS"
5268 EXTCONST char PL_bincompat_options[];
5271 #ifndef PERL_SET_PHASE
5272 # define PERL_SET_PHASE(new_phase) \
5273 PERL_DTRACE_PROBE_PHASE(new_phase); \
5274 PL_phase = new_phase;
5277 /* The interpreter phases. If these ever change, PL_phase_names right below will
5278 * need to be updated accordingly. */
5280 PERL_PHASE_CONSTRUCT = 0,
5281 PERL_PHASE_START = 1,
5282 PERL_PHASE_CHECK = 2,
5283 PERL_PHASE_INIT = 3,
5286 PERL_PHASE_DESTRUCT = 6
5290 EXTCONST char *const PL_phase_names[] = {
5300 EXTCONST char *const PL_phase_names[];
5304 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5305 * instead of using the newer PL_phase, which provides everything PL_dirty
5306 * provided, and more. */
5307 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5309 # define PL_amagic_generation PL_na
5310 # define PL_encoding ((SV *)NULL)
5311 #endif /* !PERL_CORE */
5313 #define PL_hints PL_compiling.cop_hints
5314 #define PL_maxo MAXO
5318 /*****************************************************************************/
5319 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5320 /*****************************************************************************/
5321 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5324 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5333 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5341 XATTRBLOCK, /* next token should be an attribute or block */
5342 XATTRTERM, /* next token should be an attribute, or block in a term */
5346 XTERMORDORDOR /* evil hack */
5347 /* update exp_name[] in toke.c if adding to this enum */
5350 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5352 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5353 special and there is no need for HINT_PRIVATE_MASK for COPs
5354 However, bitops store HINT_INTEGER in their op_private.
5356 NOTE: The typical module using these has the bit value hard-coded, so don't
5357 blindly change the values of these.
5359 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5360 is for "use locale 'FOO'" which excludes some categories. It requires going
5361 to %^H to find out which are in and which are out. This could be extended
5362 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5364 #define HINT_INTEGER 0x00000001 /* integer pragma */
5365 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5366 #define HINT_LOCALE 0x00000004 /* locale pragma */
5367 #define HINT_BYTES 0x00000008 /* bytes pragma */
5368 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5370 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5371 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5372 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5374 #define HINT_BLOCK_SCOPE 0x00000100
5375 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5376 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5377 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5379 /* The HINT_NEW_* constants are used by the overload pragma */
5380 #define HINT_NEW_INTEGER 0x00001000
5381 #define HINT_NEW_FLOAT 0x00002000
5382 #define HINT_NEW_BINARY 0x00004000
5383 #define HINT_NEW_STRING 0x00008000
5384 #define HINT_NEW_RE 0x00010000
5385 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5386 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5387 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5389 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5390 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5392 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5393 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5395 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5397 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5399 #define HINT_FEATURE_MASK 0x3c000000 /* 4 bits for feature bundles */
5401 /* Note: Used for HINT_M_VMSISH_*,
5402 currently defined by vms/vmsish.h:
5407 /* The following are stored in $^H{sort}, not in PL_hints */
5408 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5409 #define HINT_SORT_UNSTABLE 0x00000200
5411 #define HINT_ALL_STRICT HINT_STRICT_REFS \
5412 | HINT_STRICT_SUBS \
5415 #ifdef USE_STRICT_BY_DEFAULT
5416 #define HINTS_DEFAULT HINT_ALL_STRICT
5418 #define HINTS_DEFAULT 0
5421 /* flags for PL_sawampersand */
5423 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5424 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5425 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5427 #ifndef PERL_SAWAMPERSAND
5428 # define PL_sawampersand \
5429 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5432 /* Used for debugvar magic */
5433 #define DBVARMG_SINGLE 0
5434 #define DBVARMG_TRACE 1
5435 #define DBVARMG_SIGNAL 2
5436 #define DBVARMG_COUNT 3
5438 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5439 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5440 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5442 /* Various states of the input record separator SV (rs) */
5443 #define RsSNARF(sv) (! SvOK(sv))
5444 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5445 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5446 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5448 /* A struct for keeping various DEBUGGING related stuff,
5449 * neatly packed. Currently only scratch variables for
5450 * constructing debug output are included. Needed always,
5451 * not just when DEBUGGING, though, because of the re extension. c*/
5452 struct perl_debug_pad {
5456 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5457 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5458 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5461 /* Enable variables which are pointers to functions */
5462 typedef void (*peep_t)(pTHX_ OP* o);
5463 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5464 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5465 char* strend, char* strbeg, I32 minend,
5466 SV* screamer, void* data, U32 flags);
5467 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5468 char *strpos, char *strend,
5470 re_scream_pos_data *d);
5471 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5472 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5473 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5474 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5476 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5477 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5478 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5479 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5480 typedef void (*XSINIT_t) (pTHX);
5481 typedef void (*ATEXIT_t) (pTHX_ void*);
5482 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5484 typedef OP* (*Perl_ppaddr_t)(pTHX);
5485 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5486 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5487 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5488 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5490 typedef void(*globhook_t)(pTHX);
5492 #define KEYWORD_PLUGIN_DECLINE 0
5493 #define KEYWORD_PLUGIN_STMT 1
5494 #define KEYWORD_PLUGIN_EXPR 2
5496 /* Interpreter exitlist entry */
5497 typedef struct exitlistentry {
5498 void (*fn) (pTHX_ void*);
5500 } PerlExitListEntry;
5502 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5503 /* These have to be before perlvars.h */
5504 #if !defined(HAS_SIGACTION) && defined(VMS)
5505 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5507 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5508 #if defined(KILL_BY_SIGPRC)
5509 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5512 #if !defined(MULTIPLICITY)
5514 struct interpreter {
5520 /* If we have multiple interpreters define a struct
5521 holding variables which must be per-interpreter
5522 If we don't have threads anything that would have
5523 be per-thread is per-interpreter.
5526 /* Set up PERLVAR macros for populating structs */
5527 # define PERLVAR(prefix,var,type) type prefix##var;
5529 /* 'var' is an array of length 'n' */
5530 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5532 /* initialize 'var' to init' */
5533 # define PERLVARI(prefix,var,type,init) type prefix##var;
5535 /* like PERLVARI, but make 'var' a const */
5536 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5538 struct interpreter {
5539 # include "intrpvar.h"
5542 EXTCONST U16 PL_interp_size
5543 INIT(sizeof(struct interpreter));
5545 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5546 STRUCT_OFFSET(struct interpreter, member) + \
5547 sizeof(((struct interpreter*)0)->member)
5549 /* This will be useful for subsequent releases, because this has to be the
5550 same in your libperl as in main(), else you have a mismatch and must abort.
5552 EXTCONST U16 PL_interp_size_5_18_0
5553 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5556 /* Done with PERLVAR macros for now ... */
5562 #endif /* MULTIPLICITY */
5564 struct tempsym; /* defined in pp_pack.c */
5571 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5572 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5575 # include "malloc_ctl.h"
5579 * This provides a layer of functions and macros to ensure extensions will
5580 * get to use the same RTL functions as the core.
5583 # include "win32iop.h"
5589 /* this has structure inits, so it cannot be included before here */
5592 /* The following must follow proto.h as #defines mess up syntax */
5594 #if !defined(PERL_FOR_X2P)
5595 # include "embedvar.h"
5598 /* Now include all the 'global' variables
5599 * If we don't have threads or multiple interpreters
5600 * these include variables that would have been their struct-s
5603 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5604 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5605 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5606 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5608 #if !defined(MULTIPLICITY)
5610 # include "intrpvar.h"
5612 # define PL_sv_yes (PL_sv_immortals[0])
5613 # define PL_sv_undef (PL_sv_immortals[1])
5614 # define PL_sv_no (PL_sv_immortals[2])
5615 # define PL_sv_zero (PL_sv_immortals[3])
5619 /* All core uses now exterminated. Ensure no zombies can return: */
5623 /* Now all the config stuff is setup we can include embed.h
5624 In particular, need the relevant *ish file included already, as it may
5625 define HAVE_INTERP_INTERN */
5630 # include "perlvars.h"
5639 #if !defined(MULTIPLICITY)
5640 /* Set up PERLVAR macros for populating structs */
5641 # define PERLVAR(prefix,var,type) type prefix##var;
5642 /* 'var' is an array of length 'n' */
5643 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5644 /* initialize 'var' to init' */
5645 # define PERLVARI(prefix,var,type,init) type prefix##var;
5646 /* like PERLVARI, but make 'var' a const */
5647 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5649 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5650 struct PerlHandShakeInterpreter {
5651 # include "intrpvar.h"
5661 /* dummy variables that hold pointers to both runops functions, thus forcing
5662 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5664 EXTCONST runops_proc_t PL_runops_std
5665 INIT(Perl_runops_standard);
5666 EXTCONST runops_proc_t PL_runops_dbg
5667 INIT(Perl_runops_debug);
5669 #define EXT_MGVTBL EXTCONST MGVTBL
5671 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5672 #define PERL_MAGIC_VALUE_MAGIC 0x80
5673 #define PERL_MAGIC_VTABLE_MASK 0x3F
5675 /* can this type of magic be attached to a readonly SV? */
5676 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5677 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5679 /* Is this type of magic container magic (%ENV, $1 etc),
5680 * or value magic (pos, taint etc)?
5682 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5683 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5685 #include "mg_vtable.h"
5688 EXTCONST U8 PL_magic_data[256] =
5690 # include "umg_data.h"
5692 # include "mg_data.h"
5696 EXTCONST U8 PL_magic_data[256];
5700 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5702 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5704 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5706 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5708 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5710 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5712 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5716 EXTCONST bool PL_valid_types_IVX[];
5717 EXTCONST bool PL_valid_types_NVX[];
5718 EXTCONST bool PL_valid_types_PVX[];
5719 EXTCONST bool PL_valid_types_RV[];
5720 EXTCONST bool PL_valid_types_IV_set[];
5721 EXTCONST bool PL_valid_types_NV_set[];
5725 /* In C99 we could use designated (named field) union initializers.
5726 * In C89 we need to initialize the member declared first.
5727 * In C++ we need extern C initializers.
5729 * With the U8_NV version you will want to have inner braces,
5730 * while with the NV_U8 use just the NV. */
5732 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5733 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5735 /* if these never got defined, they need defaults */
5736 #ifndef PERL_SET_CONTEXT
5737 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5740 #ifndef PERL_GET_CONTEXT
5741 # define PERL_GET_CONTEXT PERL_GET_INTERP
5744 #ifndef PERL_GET_THX
5745 # define PERL_GET_THX ((void*)NULL)
5748 #ifndef PERL_SET_THX
5749 # define PERL_SET_THX(t) NOOP
5754 /* The tables below are adapted from
5755 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5758 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5760 Permission is hereby granted, free of charge, to any person obtaining a copy of
5761 this software and associated documentation files (the "Software"), to deal in
5762 the Software without restriction, including without limitation the rights to
5763 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5764 of the Software, and to permit persons to whom the Software is furnished to do
5765 so, subject to the following conditions:
5767 The above copyright notice and this permission notice shall be included in all
5768 copies or substantial portions of the Software.
5770 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5771 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5772 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5773 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5774 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5775 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5781 # if 0 /* This is the original table given in
5782 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5783 static U8 utf8d_C9[] = {
5784 /* The first part of the table maps bytes to character classes that
5785 * to reduce the size of the transition table and create bitmasks. */
5786 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/
5787 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/
5788 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-5F*/
5789 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-7F*/
5790 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, /*-9F*/
5791 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /*-BF*/
5792 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /*-DF*/
5793 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, /*-FF*/
5795 /* The second part is a transition table that maps a combination
5796 * of a state of the automaton and a character class to a state. */
5797 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5798 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5799 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5800 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5801 12,36,12,12,12,12,12,12,12,12,12,12
5806 /* This is a version of the above table customized for Perl that doesn't
5807 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5808 * machines). The classes have been renumbered so that the patterns are more
5809 * evident in the table. The class numbers for start bytes are constrained so
5810 * that they can be used as a shift count for masking off the leading one bits.
5811 * It would make the code simpler if start byte FF could also be handled, but
5812 * doing so would mean adding nodes for each of continuation bytes 6-12
5813 * remaining, and two more nodes for overlong detection (a total of 9), and
5814 * there is room only for 4 more nodes unless we make the array U16 instead of
5819 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5821 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5822 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5823 * 88-8F 10 Not legal immediately after start bytes E0 F0
5824 * 90-9F 11 Not legal immediately after start byte E0
5836 * FE 17 (or 1 on 32-bit machines, since it overflows)
5840 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5841 /* The first part of the table maps bytes to character classes to reduce
5842 * the size of the transition table and create bitmasks. */
5843 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5844 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5845 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5846 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5847 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5848 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5849 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5850 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5851 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5852 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5853 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5854 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5855 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5856 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5857 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5858 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5866 /* The second part is a transition table that maps a combination
5867 * of a state of the automaton and a character class to a new state, called a
5868 * node. The nodes are:
5869 * N0 The initial state, and final accepting one.
5870 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5871 * immediately when the start byte indicates a two-byte sequence
5872 * N2 Any two continuation bytes left.
5873 * N3 Any three continuation bytes left.
5874 * N4 Any four continuation bytes left.
5875 * N5 Any five continuation bytes left.
5876 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5877 * the other continuations transition to N1
5878 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5879 * the other continuations transition to N2
5880 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5881 * the other continuations transition to N3
5882 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5883 * the other continuations transition to N4
5884 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5885 * the other continuations transition to N5
5886 * 1 Reject. All transitions not mentioned above (except the single
5887 * byte ones (as they are always legal) are to this state.
5890 # if defined(PERL_CORE)
5891 # define NUM_CLASSES 18
5893 # define N1 ((N0) + NUM_CLASSES)
5894 # define N2 ((N1) + NUM_CLASSES)
5895 # define N3 ((N2) + NUM_CLASSES)
5896 # define N4 ((N3) + NUM_CLASSES)
5897 # define N5 ((N4) + NUM_CLASSES)
5898 # define N6 ((N5) + NUM_CLASSES)
5899 # define N7 ((N6) + NUM_CLASSES)
5900 # define N8 ((N7) + NUM_CLASSES)
5901 # define N9 ((N8) + NUM_CLASSES)
5902 # define N10 ((N9) + NUM_CLASSES)
5904 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5905 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5906 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5907 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5908 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5909 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5910 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5912 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5913 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5914 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5915 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5916 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5919 /* And below is a version of the above table that accepts only strict UTF-8.
5920 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5921 * passes this dfa, it will be for a well-formed, non-problematic code point
5922 * that can be returned immediately.
5924 * The "Implementation details" portion of
5925 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5926 * the first portion of the table maps each possible byte into a character
5927 * class. And that the classes for those bytes which are start bytes have been
5928 * carefully chosen so they serve as well to be used as a shift value to mask
5929 * off the leading 1 bits of the start byte. Unfortunately the addition of
5930 * being able to distinguish non-characters makes this not fully work. This is
5931 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5933 * 1) ED because it could be a surrogate
5934 * 2) EF because it could be a non-character
5935 * 3) the rest, which can never evaluate to a problematic code point.
5937 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5938 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5939 * But that only allows two categories, and we need three. khw made the
5940 * decision to therefore treat the ED start byte as an error, so that the dfa
5941 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5942 * distinguish EF vs the rest. Then special code is used to deal with ED,
5943 * that's executed only when the dfa drops out. The code points started by ED
5944 * are half surrogates, and half hangul syllables. This means that 2048 of
5945 * the hangul syllables (about 18%) take longer than all other non-problematic
5946 * code points to handle.
5948 * The changes to handle non-characters requires the addition of states and
5949 * classes to the dfa. (See the section on "Mapping bytes to character
5950 * classes" in the linked-to document for further explanation of the original
5974 * F1-F3 6 (6 bits can be stripped)
5975 * F4 5 (only 5 can be stripped)
5979 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5980 /* The first part of the table maps bytes to character classes to reduce
5981 * the size of the transition table and create bitmasks. */
5982 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5983 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5984 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5985 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5986 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5987 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5988 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5989 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5990 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5991 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5992 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5993 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5994 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5995 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5996 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5997 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5999 /* The second part is a transition table that maps a combination
6000 * of a state of the automaton and a character class to a new state, called a
6001 * node. The nodes are:
6002 * N0 The initial state, and final accepting one.
6003 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6004 * immediately when the start byte indicates a two-byte sequence
6005 * N2 Any two continuation bytes left.
6006 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6007 * the other continuations transition to state N1
6008 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
6009 * the other continuations transitions to N1
6010 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6011 * [9AB]F transition to N10; the other continuations to N2.
6012 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
6013 * to N10; the other continuations to N2.
6014 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6015 * (non-unicode); 8F transitions to N10; the other continuations to N2
6016 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
6017 * (non-characters); the other continuations transition to N0.
6018 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
6019 * (non-characters); the other continuations transition to N0.
6020 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
6021 * Continuation byte BF transitions to N11; the other continuations to
6023 * N11 Initial sequence is the two bytes given in N10 followed by BF.
6024 * Continuation bytes BE and BF are illegal (non-characters); the other
6025 * continuations transition to N0.
6026 * 1 Reject. All transitions not mentioned above (except the single
6027 * byte ones (as they are always legal) are to this state.
6041 # define NUM_CLASSES 19
6043 # define N1 ((N0) + NUM_CLASSES)
6044 # define N2 ((N1) + NUM_CLASSES)
6045 # define N3 ((N2) + NUM_CLASSES)
6046 # define N4 ((N3) + NUM_CLASSES)
6047 # define N5 ((N4) + NUM_CLASSES)
6048 # define N6 ((N5) + NUM_CLASSES)
6049 # define N7 ((N6) + NUM_CLASSES)
6050 # define N8 ((N7) + NUM_CLASSES)
6051 # define N9 ((N8) + NUM_CLASSES)
6052 # define N10 ((N9) + NUM_CLASSES)
6053 # define N11 ((N10) + NUM_CLASSES)
6055 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
6056 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6057 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6058 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
6060 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
6061 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
6062 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
6063 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
6064 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
6065 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
6066 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6067 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
6068 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
6071 /* And below is yet another version of the above tables that accepts only UTF-8
6072 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
6073 * it allows non-characters. This is isomorphic to the original table
6074 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
6088 * F1-F3 6 (6 bits can be stripped)
6089 * F4 5 (only 5 can be stripped)
6093 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
6094 /* The first part of the table maps bytes to character classes to reduce
6095 * the size of the transition table and create bitmasks. */
6096 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
6097 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
6098 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
6099 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
6100 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
6101 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
6102 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
6103 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
6104 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
6105 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
6106 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
6107 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
6108 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
6109 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
6110 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
6111 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
6113 /* The second part is a transition table that maps a combination
6114 * of a state of the automaton and a character class to a new state, called a
6115 * node. The nodes are:
6116 * N0 The initial state, and final accepting one.
6117 * N1 Any one continuation byte (80-BF) left. This is transitioned to
6118 * immediately when the start byte indicates a two-byte sequence
6119 * N2 Any two continuation bytes left.
6120 * N3 Any three continuation bytes left.
6121 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
6122 * the other continuations transition to state N1
6123 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
6124 * so are illegal. The other continuations transition to state N1.
6125 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
6126 * the other continuations transition to N2
6127 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
6128 * (non-unicode); the other continuations transition to N2
6129 * 1 Reject. All transitions not mentioned above (except the single
6130 * byte ones (as they are always legal) are to this state.
6142 # define NUM_CLASSES 12
6144 # define N1 ((N0) + NUM_CLASSES)
6145 # define N2 ((N1) + NUM_CLASSES)
6146 # define N3 ((N2) + NUM_CLASSES)
6147 # define N4 ((N3) + NUM_CLASSES)
6148 # define N5 ((N4) + NUM_CLASSES)
6149 # define N6 ((N5) + NUM_CLASSES)
6150 # define N7 ((N6) + NUM_CLASSES)
6152 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
6153 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
6154 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
6155 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
6156 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
6158 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
6159 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
6160 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
6161 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
6164 # endif /* defined(PERL_CORE) */
6165 # else /* End of is DOINIT */
6167 EXTCONST U8 PL_extended_utf8_dfa_tab[];
6168 EXTCONST U8 PL_strict_utf8_dfa_tab[];
6169 EXTCONST U8 PL_c9_utf8_dfa_tab[];
6172 #endif /* end of isn't EBCDIC */
6174 #ifndef PERL_NO_INLINE_FUNCTIONS
6175 /* Static inline funcs that depend on includes and declarations above.
6176 Some of these reference functions in the perl object files, and some
6177 compilers aren't smart enough to eliminate unused static inline
6178 functions, so including this file in source code can cause link errors
6179 even if the source code uses none of the functions. Hence including these
6180 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
6181 (obviously) result in unworkable XS code, but allows simple probing code
6182 to continue to work, because it permits tests to include the perl headers
6183 for definitions without creating a link dependency on the perl library
6184 (which may not exist yet).
6187 # include "inline.h"
6190 #include "overload.h"
6199 CV* table[NofAMmeth];
6201 struct am_table_short {
6207 typedef struct am_table AMT;
6208 typedef struct am_table_short AMTS;
6210 #define AMGfallNEVER 1
6212 #define AMGfallYES 3
6214 #define AMTf_AMAGIC 1
6215 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
6216 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
6217 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
6219 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
6222 * some compilers like to redefine cos et alia as faster
6223 * (and less accurate?) versions called F_cos et cetera (Quidquid
6224 * latine dictum sit, altum viditur.) This trick collides with
6225 * the Perl overloading (amg). The following #defines fool both.
6230 # define F_atan2_amg atan2_amg
6233 # define F_cos_amg cos_amg
6236 # define F_exp_amg exp_amg
6239 # define F_log_amg log_amg
6242 # define F_pow_amg pow_amg
6245 # define F_sin_amg sin_amg
6248 # define F_sqrt_amg sqrt_amg
6250 #endif /* _FASTMATH */
6252 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6253 PERLDBf_NOOPT | PERLDBf_INTER | \
6254 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6255 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6257 /* No _NONAME, _GOTO */
6258 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6259 #define PERLDBf_LINE 0x02 /* Keep line # */
6260 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6261 #define PERLDBf_INTER 0x08 /* Preserve more data for
6262 later inspections */
6263 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6264 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6265 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6266 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6267 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6268 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6269 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6270 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6271 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6273 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6274 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6275 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6276 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6277 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6278 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6279 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6280 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6281 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6282 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6283 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6284 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6285 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6287 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6290 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6291 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6292 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6293 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6294 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6295 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6296 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6297 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6299 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6300 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6301 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6302 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6303 # define USER_PROP_MUTEX_INIT NOOP
6304 # define USER_PROP_MUTEX_LOCK NOOP
6305 # define USER_PROP_MUTEX_UNLOCK NOOP
6306 # define USER_PROP_MUTEX_TERM NOOP
6309 #ifdef USE_LOCALE /* These locale things are all subject to change */
6311 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6313 # define IN_LOCALE_RUNTIME (PL_curcop \
6314 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6316 /* Returns TRUE if either form of the locale pragma is in effect */
6317 # define IN_SOME_LOCALE_FORM_RUNTIME \
6318 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6320 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6321 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6322 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6325 =for apidoc_section Locales
6327 =for apidoc Amn|bool|IN_LOCALE
6329 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6330 locale>>) is in effect.
6332 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6334 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6335 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6337 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6339 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6340 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6345 # define IN_LOCALE \
6346 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6347 # define IN_SOME_LOCALE_FORM \
6348 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6349 : IN_SOME_LOCALE_FORM_RUNTIME)
6351 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6352 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6354 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6355 # define IN_LC_PARTIAL_RUNTIME \
6356 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6358 # define IN_LC_COMPILETIME(category) \
6359 ( IN_LC_ALL_COMPILETIME \
6360 || ( IN_LC_PARTIAL_COMPILETIME \
6361 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6362 # define IN_LC_RUNTIME(category) \
6363 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6364 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6365 # define IN_LC(category) \
6366 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6368 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6370 /* This internal macro should be called from places that operate under
6371 * locale rules. If there is a problem with the current locale that
6372 * hasn't been raised yet, it will output a warning this time. Because
6373 * this will so rarely be true, there is no point to optimize for time;
6374 * instead it makes sense to minimize space used and do all the work in
6375 * the rarely called function */
6376 # ifdef USE_LOCALE_CTYPE
6377 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6379 if (UNLIKELY(PL_warn_locale)) { \
6380 Perl__warn_problematic_locale(); \
6384 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6388 /* These two internal macros are called when a warning should be raised,
6389 * and will do so if enabled. The first takes a single code point
6390 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6391 * string, and an end position which it won't try to read past */
6392 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6394 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6395 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6396 "Wide character (U+%" UVXf ") in %s",\
6397 (UV) cp, OP_DESC(PL_op)); \
6401 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6402 STMT_START { /* Check if to warn before doing the conversion work */\
6403 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6404 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6405 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6406 "Wide character (U+%" UVXf ") in %s", \
6408 ? UNICODE_REPLACEMENT \
6414 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6415 #else /* No locale usage */
6416 # define IN_LOCALE_RUNTIME 0
6417 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6418 # define IN_LOCALE_COMPILETIME 0
6419 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6420 # define IN_LOCALE 0
6421 # define IN_SOME_LOCALE_FORM 0
6422 # define IN_LC_ALL_COMPILETIME 0
6423 # define IN_LC_ALL_RUNTIME 0
6424 # define IN_LC_PARTIAL_COMPILETIME 0
6425 # define IN_LC_PARTIAL_RUNTIME 0
6426 # define IN_LC_COMPILETIME(category) 0
6427 # define IN_LC_RUNTIME(category) 0
6428 # define IN_LC(category) 0
6429 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6430 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6431 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6435 /* Locale/thread synchronization macros. These aren't needed if using
6436 * thread-safe locale operations, except if something is broken */
6437 #if defined(USE_LOCALE) \
6438 && defined(USE_ITHREADS) \
6439 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6441 /* We have a locale object holding the 'C' locale for Posix 2008 */
6442 # ifndef USE_POSIX_2008_LOCALE
6443 # define _LOCALE_TERM_POSIX_2008 NOOP
6445 # define _LOCALE_TERM_POSIX_2008 \
6447 if (PL_C_locale_obj) { \
6448 /* Make sure we aren't using the locale \
6449 * space we are about to free */ \
6450 uselocale(LC_GLOBAL_LOCALE); \
6451 freelocale(PL_C_locale_obj); \
6452 PL_C_locale_obj = (locale_t) NULL; \
6457 /* This is used as a generic lock for locale operations. For example this is
6458 * used when calling nl_langinfo() so that another thread won't zap the
6459 * contents of its buffer before it gets saved; and it's called when changing
6460 * the locale of LC_MESSAGES. On some systems the latter can cause the
6461 * nl_langinfo buffer to be zapped under a race condition.
6463 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6464 * should be contained entirely within the locked portion of LC_NUMERIC. This
6465 * mutex should be used only in very short sections of code, while
6466 * LC_NUMERIC_LOCK may span more operations. By always following this
6467 * convention, deadlock should be impossible. But if necessary, the two
6468 * mutexes could be combined.
6470 * Actually, the two macros just below with the '_V' suffixes are used in just
6471 * a few places where there is a broken localeconv(), but otherwise things are
6472 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6473 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6474 # define LOCALE_LOCK_V \
6476 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6477 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6478 MUTEX_LOCK(&PL_locale_mutex); \
6480 # define LOCALE_UNLOCK_V \
6482 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6483 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6484 MUTEX_UNLOCK(&PL_locale_mutex); \
6487 /* On windows, we just need the mutex for LOCALE_LOCK */
6488 # ifdef TS_W32_BROKEN_LOCALECONV
6489 # define LOCALE_LOCK NOOP
6490 # define LOCALE_UNLOCK NOOP
6491 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6492 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6493 # define LC_NUMERIC_LOCK(cond)
6494 # define LC_NUMERIC_UNLOCK
6496 # define LOCALE_LOCK LOCALE_LOCK_V
6497 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6499 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6501 # define LOCALE_INIT STMT_START { \
6502 MUTEX_INIT(&PL_locale_mutex); \
6503 MUTEX_INIT(&PL_lc_numeric_mutex); \
6506 # define LOCALE_TERM STMT_START { \
6507 MUTEX_DESTROY(&PL_locale_mutex); \
6508 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6509 _LOCALE_TERM_POSIX_2008; \
6512 /* This mutex is used to create critical sections where we want the
6513 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6514 * the underlying locale, so that other threads interrupting this one don't
6515 * change it to the wrong state before we've had a chance to complete our
6516 * operation. It can stay locked over an entire printf operation, for
6517 * example. And so is made distinct from the LOCALE_LOCK mutex.
6519 * This simulates kind of a general semaphore. The current thread will
6520 * lock the mutex if the per-thread variable is zero, and then increments
6521 * that variable. Each corresponding UNLOCK decrements the variable until
6522 * it is 0, at which point it actually unlocks the mutex. Since the
6523 * variable is per-thread, there is no race with other threads.
6525 * The single argument is a condition to test for, and if true, to panic,
6526 * as this would be an attempt to complement the LC_NUMERIC state, and
6527 * we're not supposed to because it's locked.
6529 * Clang improperly gives warnings for this, if not silenced:
6530 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6532 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6533 CLANG_DIAG_IGNORE(-Wthread-safety) \
6535 if (PL_lc_numeric_mutex_depth <= 0) { \
6536 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6537 PL_lc_numeric_mutex_depth = 1; \
6538 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6539 "%s: %d: locking lc_numeric; depth=1\n", \
6540 __FILE__, __LINE__)); \
6543 PL_lc_numeric_mutex_depth++; \
6544 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6545 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6546 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6547 if (cond_to_panic_if_already_locked) { \
6548 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6549 " LC_NUMERIC incompatibly", \
6550 __FILE__, __LINE__); \
6555 # define LC_NUMERIC_UNLOCK \
6557 if (PL_lc_numeric_mutex_depth <= 1) { \
6558 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6559 PL_lc_numeric_mutex_depth = 0; \
6560 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6561 "%s: %d: unlocking lc_numeric; depth=0\n", \
6562 __FILE__, __LINE__)); \
6565 PL_lc_numeric_mutex_depth--; \
6566 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6567 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6568 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6573 # endif /* End of needs locking LC_NUMERIC */
6574 #else /* Below is no locale sync needed */
6575 # define LOCALE_INIT
6576 # define LOCALE_LOCK
6577 # define LOCALE_LOCK_V
6578 # define LOCALE_UNLOCK
6579 # define LOCALE_UNLOCK_V
6580 # define LC_NUMERIC_LOCK(cond)
6581 # define LC_NUMERIC_UNLOCK
6582 # define LOCALE_TERM
6585 #ifdef USE_LOCALE_NUMERIC
6587 /* These macros are for toggling between the underlying locale (UNDERLYING or
6588 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6589 * locale if the underlying locale is indistinguishable from it in the numeric
6590 * operations used by Perl, namely the decimal point, and even the thousands
6593 =for apidoc_section Locales
6595 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6597 This macro should be used as a statement. It declares a private variable
6598 (whose name begins with an underscore) that is needed by the other macros in
6599 this section. Failing to include this correctly should lead to a syntax error.
6600 For compatibility with C89 C compilers it should be placed in a block before
6601 any executable statements.
6603 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6605 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
6606 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6607 underlying locale. (The perl interpreter could be wrong about what the
6608 underlying locale actually is if some C or XS code has called the C library
6609 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6610 this macro will update perl's records.)
6612 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6613 declare at compile time a private variable used by this macro. This macro
6614 should be called as a single statement, not an expression, but with an empty
6615 argument list, like this:
6618 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6620 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6622 RESTORE_LC_NUMERIC();
6626 The private variable is used to save the current locale state, so
6627 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6629 On threaded perls not operating with thread-safe functionality, this macro uses
6630 a mutex to force a critical section. Therefore the matching RESTORE should be
6631 close by, and guaranteed to be called.
6633 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6635 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6636 This locale category is generally kept set to a locale where the decimal radix
6637 character is a dot, and the separator between groups of digits is empty. This
6638 is because most XS code that reads floating point numbers is expecting them to
6641 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6642 aware of locale if the call to the XS or C code from the Perl program is
6643 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6644 instead from outside such scope.
6646 This macro is the start of wrapping the C or XS code; the wrap ending is done
6647 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6648 the state can be changed that will adversely affect other XS code.
6650 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6651 declare at compile time a private variable used by this macro. This macro
6652 should be called as a single statement, not an expression, but with an empty
6653 argument list, like this:
6656 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6658 STORE_LC_NUMERIC_SET_TO_NEEDED();
6660 RESTORE_LC_NUMERIC();
6664 On threaded perls not operating with thread-safe functionality, this macro uses
6665 a mutex to force a critical section. Therefore the matching RESTORE should be
6666 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6667 for a more contained way to ensure that.
6669 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6671 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6672 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6673 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6674 cannot have changed since the precalculation.
6676 =for apidoc Am|void|RESTORE_LC_NUMERIC
6678 This is used in conjunction with one of the macros
6679 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6680 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6681 C<LC_NUMERIC> state.
6683 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6684 declare at compile time a private variable used by this macro and the two
6685 C<STORE> ones. This macro should be called as a single statement, not an
6686 expression, but with an empty argument list, like this:
6689 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6691 RESTORE_LC_NUMERIC();
6695 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6697 This macro invokes the supplied statement or block within the context
6698 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6701 WITH_LC_NUMERIC_SET_TO_NEEDED(
6702 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6708 #ifdef USE_LOCALE_NUMERIC
6709 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6710 STORE_LC_NUMERIC_SET_TO_NEEDED();
6712 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6713 #ifdef USE_LOCALE_NUMERIC
6714 RESTORE_LC_NUMERIC();
6718 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6720 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6721 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6722 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6723 cannot have changed since the precalculation.
6729 /* If the underlying numeric locale has a non-dot decimal point or has a
6730 * non-empty floating point thousands separator, the current locale is instead
6731 * generally kept in the C locale instead of that underlying locale. The
6732 * current status is known by looking at two words. One is non-zero if the
6733 * current numeric locale is the standard C/POSIX one or is indistinguishable
6734 * from C. The other is non-zero if the current locale is the underlying
6735 * locale. Both can be non-zero if, as often happens, the underlying locale is
6736 * C or indistinguishable from it.
6738 * khw believes the reason for the variables instead of the bits in a single
6739 * word is to avoid having to have masking instructions. */
6741 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6743 /* We can lock the category to stay in the C locale, making requests to the
6744 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6746 # define _NOT_IN_NUMERIC_UNDERLYING \
6747 (! PL_numeric_underlying && PL_numeric_standard < 2)
6749 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6750 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6752 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6754 bool _in_lc_numeric = (in); \
6756 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6757 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6758 if (_in_lc_numeric) { \
6759 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6760 Perl_set_numeric_underlying(aTHX); \
6761 _restore_LC_NUMERIC_function \
6762 = &Perl_set_numeric_standard; \
6766 if (_NOT_IN_NUMERIC_STANDARD) { \
6767 Perl_set_numeric_standard(aTHX); \
6768 _restore_LC_NUMERIC_function \
6769 = &Perl_set_numeric_underlying; \
6774 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6775 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6777 # define RESTORE_LC_NUMERIC() \
6779 if (_restore_LC_NUMERIC_function) { \
6780 _restore_LC_NUMERIC_function(aTHX); \
6782 LC_NUMERIC_UNLOCK; \
6785 /* The next two macros set unconditionally. These should be rarely used, and
6786 * only after being sure that this is what is needed */
6787 # define SET_NUMERIC_STANDARD() \
6789 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6790 "%s: %d: lc_numeric standard=%d\n", \
6791 __FILE__, __LINE__, PL_numeric_standard)); \
6792 Perl_set_numeric_standard(aTHX); \
6793 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6794 "%s: %d: lc_numeric standard=%d\n", \
6795 __FILE__, __LINE__, PL_numeric_standard)); \
6798 # define SET_NUMERIC_UNDERLYING() \
6800 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6801 Perl_set_numeric_underlying(aTHX); \
6805 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6806 * the RESTORE_foo ones called to switch back, but only if need be */
6807 # define STORE_LC_NUMERIC_SET_STANDARD() \
6809 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6810 if (_NOT_IN_NUMERIC_STANDARD) { \
6811 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6812 Perl_set_numeric_standard(aTHX); \
6816 /* Rarely, we want to change to the underlying locale even outside of 'use
6817 * locale'. This is principally in the POSIX:: functions */
6818 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6820 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6821 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6822 Perl_set_numeric_underlying(aTHX); \
6823 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6827 /* Lock/unlock to the C locale until unlock is called. This needs to be
6828 * recursively callable. [perl #128207] */
6829 # define LOCK_LC_NUMERIC_STANDARD() \
6831 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6832 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6833 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6834 __ASSERT_(PL_numeric_standard) \
6835 PL_numeric_standard++; \
6838 # define UNLOCK_LC_NUMERIC_STANDARD() \
6840 if (PL_numeric_standard > 1) { \
6841 PL_numeric_standard--; \
6846 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6847 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6848 __FILE__, __LINE__, PL_numeric_standard)); \
6851 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6853 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6854 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6856 RESTORE_LC_NUMERIC(); \
6859 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6860 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6862 #else /* !USE_LOCALE_NUMERIC */
6864 # define SET_NUMERIC_STANDARD()
6865 # define SET_NUMERIC_UNDERLYING()
6866 # define IS_NUMERIC_RADIX(a, b) (0)
6867 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
6868 # define STORE_LC_NUMERIC_SET_STANDARD()
6869 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6870 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6871 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6872 # define RESTORE_LC_NUMERIC()
6873 # define LOCK_LC_NUMERIC_STANDARD()
6874 # define UNLOCK_LC_NUMERIC_STANDARD()
6875 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6876 STMT_START { block; } STMT_END
6877 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6878 STMT_START { block; } STMT_END
6880 #endif /* !USE_LOCALE_NUMERIC */
6882 #define Atof my_atof
6886 =for apidoc_section Numeric Functions
6888 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6890 This is a synonym for L</my_strtod>.
6892 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6894 Platform and configuration independent C<strtol>. This expands to the
6895 appropriate C<strotol>-like function based on the platform and F<Configure>
6896 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6899 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6901 Platform and configuration independent C<strtoul>. This expands to the
6902 appropriate C<strotoul>-like function based on the platform and F<Configure>
6903 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6910 #define Strtod my_strtod
6912 #if defined(HAS_STRTOD) \
6913 || defined(USE_QUADMATH) \
6914 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6915 && defined(USE_LONG_DOUBLE))
6916 # define Perl_strtod Strtod
6919 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6920 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6922 # define strtoll __strtoll /* secret handshake */
6924 # if defined(WIN64) && defined(_MSC_VER)
6925 # define strtoll _strtoi64 /* secret handshake */
6927 # if !defined(Strtol) && defined(HAS_STRTOLL)
6928 # define Strtol strtoll
6930 # if !defined(Strtol) && defined(HAS_STRTOQ)
6931 # define Strtol strtoq
6933 /* is there atoq() anywhere? */
6935 #if !defined(Strtol) && defined(HAS_STRTOL)
6936 # define Strtol strtol
6939 /* It would be more fashionable to use Strtol() to define atol()
6940 * (as is done for Atoul(), see below) but for backward compatibility
6941 * we just assume atol(). */
6942 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6943 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6945 # define atoll _atoi64 /* secret handshake */
6953 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6954 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6956 # define strtoull __strtoull /* secret handshake */
6958 # if defined(WIN64) && defined(_MSC_VER)
6959 # define strtoull _strtoui64 /* secret handshake */
6961 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6962 # define Strtoul strtoull
6964 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6965 # define Strtoul strtouq
6967 /* is there atouq() anywhere? */
6969 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6970 # define Strtoul strtoul
6972 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6973 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6976 # define Atoul(s) Strtoul(s, NULL, 10)
6979 #define grok_bin(s,lp,fp,rp) \
6980 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6981 #define grok_oct(s,lp,fp,rp) \
6982 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6983 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6984 #define grok_hex(s,lp,fp,rp) \
6985 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6987 #ifndef PERL_SCRIPT_MODE
6988 #define PERL_SCRIPT_MODE "r"
6991 /* not used. Kept as a NOOP for backcompat */
6992 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6995 * Some nonpreemptive operating systems find it convenient to
6996 * check for asynchronous conditions after each op execution.
6997 * Keep this check simple, or it may slow down execution
7002 # ifndef PERL_ASYNC_CHECK
7003 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
7007 #ifndef PERL_ASYNC_CHECK
7008 # define PERL_ASYNC_CHECK() NOOP
7012 * On some operating systems, a memory allocation may succeed,
7013 * but put the process too close to the system's comfort limit.
7014 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
7017 #ifndef PERL_ALLOC_CHECK
7018 #define PERL_ALLOC_CHECK(p) NOOP
7022 # include <sys/ipc.h>
7023 # include <sys/sem.h>
7024 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
7027 struct semid_ds *buf;
7028 unsigned short *array;
7031 # ifdef USE_SEMCTL_SEMUN
7032 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
7033 union gccbug_semun {
7035 struct semid_ds *buf;
7036 unsigned short *array;
7039 # define semun gccbug_semun
7041 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
7042 # elif defined(USE_SEMCTL_SEMID_DS)
7043 # ifdef EXTRA_F_IN_SEMUN_BUF
7044 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
7046 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
7052 * Boilerplate macros for initializing and accessing interpreter-local
7053 * data from C. All statics in extensions should be reworked to use
7054 * this, if you want to make the extension thread-safe. See
7055 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
7056 * and perlxs.pod for more.
7058 * Code that uses these macros is responsible for the following:
7059 * 1. #define MY_CXT_KEY to a unique string, e.g.
7060 * "DynaLoader::_guts" XS_VERSION
7061 * XXX in the current implementation, this string is ignored.
7062 * 2. Declare a typedef named my_cxt_t that is a structure that contains
7063 * all the data that needs to be interpreter-local.
7064 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
7065 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
7066 * (typically put in the BOOT: section).
7067 * 5. Use the members of the my_cxt_t structure everywhere as
7069 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
7073 #if defined(PERL_IMPLICIT_CONTEXT)
7075 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
7076 * right after the definition (i.e. at file scope). The non-threads
7077 * case below uses it to declare the data as static. */
7078 # define START_MY_CXT static int my_cxt_index = -1;
7079 # define MY_CXT_INDEX my_cxt_index
7080 # define MY_CXT_INIT_ARG &my_cxt_index
7082 /* Creates and zeroes the per-interpreter data.
7083 * (We allocate my_cxtp in a Perl SV so that it will be released when
7084 * the interpreter goes away.) */
7085 # define MY_CXT_INIT \
7086 my_cxt_t *my_cxtp = \
7087 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7088 PERL_UNUSED_VAR(my_cxtp)
7089 # define MY_CXT_INIT_INTERP(my_perl) \
7090 my_cxt_t *my_cxtp = \
7091 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
7092 PERL_UNUSED_VAR(my_cxtp)
7094 /* This declaration should be used within all functions that use the
7095 * interpreter-local data. */
7097 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
7098 # define dMY_CXT_INTERP(my_perl) \
7099 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
7101 /* Clones the per-interpreter data. */
7102 # define MY_CXT_CLONE \
7103 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
7104 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
7105 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
7106 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
7110 /* This macro must be used to access members of the my_cxt_t structure.
7111 * e.g. MY_CXT.some_data */
7112 # define MY_CXT (*my_cxtp)
7114 /* Judicious use of these macros can reduce the number of times dMY_CXT
7115 * is used. Use is similar to pTHX, aTHX etc. */
7116 # define pMY_CXT my_cxt_t *my_cxtp
7117 # define pMY_CXT_ pMY_CXT,
7118 # define _pMY_CXT ,pMY_CXT
7119 # define aMY_CXT my_cxtp
7120 # define aMY_CXT_ aMY_CXT,
7121 # define _aMY_CXT ,aMY_CXT
7123 #else /* PERL_IMPLICIT_CONTEXT */
7125 # define START_MY_CXT static my_cxt_t my_cxt;
7126 # define dMY_CXT_SV dNOOP
7127 # define dMY_CXT dNOOP
7128 # define dMY_CXT_INTERP(my_perl) dNOOP
7129 # define MY_CXT_INIT NOOP
7130 # define MY_CXT_CLONE NOOP
7131 # define MY_CXT my_cxt
7133 # define pMY_CXT void
7140 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
7151 # undef FD_CLOEXEC /* a lie in AmigaOS */
7155 # include <sys/file.h>
7158 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
7159 EXTERN_C int flock(int fd, int op);
7163 /* Assume UNIX defaults */
7164 # define O_RDONLY 0000
7165 # define O_WRONLY 0001
7166 # define O_RDWR 0002
7167 # define O_CREAT 0100
7178 #if O_TEXT != O_BINARY
7179 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
7180 * that is, you are somehow DOSish. */
7181 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
7182 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
7183 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
7184 /* VOS has O_TEXT != O_BINARY, and they have effect,
7185 * but VOS always uses LF, never CRLF. */
7186 /* If you have O_TEXT different from your O_BINARY but you still are
7187 * not a CRLF shop. */
7188 # undef PERLIO_USING_CRLF
7190 /* If you really are DOSish. */
7191 # define PERLIO_USING_CRLF 1
7196 # include <libutil.h> /* setproctitle() in some FreeBSDs */
7199 #ifndef EXEC_ARGV_CAST
7200 #define EXEC_ARGV_CAST(x) (char **)x
7203 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
7204 int). value returned in pointed-
7206 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
7207 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
7208 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
7209 #define IS_NUMBER_INFINITY 0x10 /* this is big */
7210 #define IS_NUMBER_NAN 0x20 /* this is not */
7211 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
7214 =for apidoc_section Numeric Functions
7216 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
7218 A synonym for L</grok_numeric_radix>
7222 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
7224 /* Number scan flags. All are used for input, the ones used for output are so
7226 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
7227 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
7229 /* grok_??? input: ignored; output: found overflow */
7230 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
7232 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
7233 * this isn't set on output if one is found. Instead, see
7234 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7235 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7237 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7238 and set IS_NUMBER_TRAILING */
7240 /* These are considered experimental, so not exposed publicly */
7241 #if defined(PERL_CORE) || defined(PERL_EXT)
7242 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7243 * output: found such a number */
7244 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7246 /* If this is set on input, and no illegal digit is found, it will be cleared
7247 * on output; otherwise unchanged */
7248 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7250 /* Don't warn on overflow; output flag still set */
7251 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7253 /* Forbid a leading underscore, which the other one doesn't */
7254 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7258 /* to let user control profiling */
7259 #ifdef PERL_GPROF_CONTROL
7260 extern void moncontrol(int);
7261 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7263 #define PERL_GPROF_MONCONTROL(x)
7266 /* ISO 6429 NEL - C1 control NExt Line */
7267 /* See https://www.unicode.org/unicode/reports/tr13/ */
7268 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7270 #ifndef PIPESOCK_MODE
7271 # define PIPESOCK_MODE
7274 #ifndef SOCKET_OPEN_MODE
7275 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7278 #ifndef PIPE_OPEN_MODE
7279 # define PIPE_OPEN_MODE PIPESOCK_MODE
7282 #define PERL_MAGIC_UTF8_CACHESIZE 2
7284 #define PERL_UNICODE_STDIN_FLAG 0x0001
7285 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7286 #define PERL_UNICODE_STDERR_FLAG 0x0004
7287 #define PERL_UNICODE_IN_FLAG 0x0008
7288 #define PERL_UNICODE_OUT_FLAG 0x0010
7289 #define PERL_UNICODE_ARGV_FLAG 0x0020
7290 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7291 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7292 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7294 #define PERL_UNICODE_STD_FLAG \
7295 (PERL_UNICODE_STDIN_FLAG | \
7296 PERL_UNICODE_STDOUT_FLAG | \
7297 PERL_UNICODE_STDERR_FLAG)
7299 #define PERL_UNICODE_INOUT_FLAG \
7300 (PERL_UNICODE_IN_FLAG | \
7301 PERL_UNICODE_OUT_FLAG)
7303 #define PERL_UNICODE_DEFAULT_FLAGS \
7304 (PERL_UNICODE_STD_FLAG | \
7305 PERL_UNICODE_INOUT_FLAG | \
7306 PERL_UNICODE_LOCALE_FLAG)
7308 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7310 #define PERL_UNICODE_STDIN 'I'
7311 #define PERL_UNICODE_STDOUT 'O'
7312 #define PERL_UNICODE_STDERR 'E'
7313 #define PERL_UNICODE_STD 'S'
7314 #define PERL_UNICODE_IN 'i'
7315 #define PERL_UNICODE_OUT 'o'
7316 #define PERL_UNICODE_INOUT 'D'
7317 #define PERL_UNICODE_ARGV 'A'
7318 #define PERL_UNICODE_LOCALE 'L'
7319 #define PERL_UNICODE_WIDESYSCALLS 'W'
7320 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7323 =for apidoc_section Signals
7324 =for apidoc Amn|U32|PERL_SIGNALS_UNSAFE_FLAG
7325 If this bit in C<PL_signals> is set, the system is uing the pre-Perl 5.8
7326 unsafe signals. See L<perlrun/PERL_SIGNALS> and L<perlipc/Deferred Signals
7331 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7334 =for apidoc_section Numeric Functions
7336 =for apidoc Am|int|PERL_ABS|int
7338 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7339 integers, but it works for any type.) Use instead of these, since the C
7340 library ones force their argument to be what it is expecting, potentially
7341 leading to disaster. But also beware that this evaluates its argument twice,
7347 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7349 #if defined(__DECC) && defined(__osf__)
7350 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7353 #define do_open(g, n, l, a, rm, rp, sf) \
7354 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7355 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7356 # define do_exec(cmd) do_exec3(cmd,0,0)
7359 # define do_aexec Perl_do_aexec
7361 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7366 =for apidoc_section Utility Functions
7368 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7370 Same as L</is_safe_syscall>.
7374 Allows one ending \0
7376 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7378 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7380 #if defined(OEMVS) || defined(__amigaos4__)
7381 #define NO_ENV_ARRAY_IN_MAIN
7384 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7385 * are here so that they are available throughout the core
7386 * NOTE that even though some are for _escape and some for _pretty
7387 * there must not be any clashes as the flags from _pretty are
7388 * passed straight through to _escape.
7391 #define PERL_PV_ESCAPE_QUOTE 0x000001
7392 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7394 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7395 #define PERL_PV_PRETTY_LTGT 0x000004
7396 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7398 #define PERL_PV_ESCAPE_UNI 0x000100
7399 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7400 #define PERL_PV_ESCAPE_NONASCII 0x000400
7401 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7403 #define PERL_PV_ESCAPE_ALL 0x001000
7404 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7405 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7406 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7407 #define PERL_PV_ESCAPE_RE 0x008000
7409 #define PERL_PV_ESCAPE_DWIM 0x010000
7412 /* used by pv_display in dump.c*/
7413 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7414 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7416 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7417 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7418 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7419 # define DOUBLE_IS_VAX_FLOAT
7421 # define DOUBLE_IS_IEEE_FORMAT
7424 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7425 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7426 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7427 # define DOUBLE_LITTLE_ENDIAN
7430 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7431 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7432 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7433 # define DOUBLE_BIG_ENDIAN
7436 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7437 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7438 # define DOUBLE_MIX_ENDIAN
7441 /* The VAX fp formats are neither consistently little-endian nor
7442 * big-endian, and neither are they really IEEE-mixed endian like
7443 * the mixed-endian ARM IEEE formats (with swapped bytes).
7444 * Ultimately, the VAX format came from the PDP-11.
7446 * The ordering of the parts in VAX floats is quite vexing.
7447 * In the below the fraction_n are the mantissa bits.
7449 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7450 * while the rightmost bit in each fraction is the least significant:
7451 * in other words, big-endian bit order within the fractions.
7453 * The fraction segments themselves would be big-endianly, except that
7454 * within 32 bit segments the less significant half comes first, the more
7455 * significant after, except that in the format H (used for long doubles)
7456 * the first fraction segment is alone, because the exponent is wider.
7457 * This means for example that both the most and the least significant
7458 * bits can be in the middle of the floats, not at either end.
7461 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7462 * http://www.quadibloc.com/comp/cp0201.htm
7463 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7464 * (somebody at HP should be fired for the URLs)
7466 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7467 * (exponent bias 128, hidden first one-bit)
7469 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7470 * fraction_4:16 fraction_3:16
7471 * (exponent bias 128, hidden first one-bit)
7473 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7474 * fraction_4:16 fraction_3:16
7475 * (exponent bias 1024, hidden first one-bit)
7477 * H fraction_1:16 sign:1 exp:15
7478 * fraction_3:16 fraction_2:16
7479 * fraction_5:16 fraction_4:16
7480 * fraction_7:16 fraction_6:16
7481 * (exponent bias 16384, hidden first one-bit)
7482 * (available only on VAX, and only on Fortran?)
7484 * The formats S, T and X are available on the Alpha (and Itanium,
7485 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7486 * binary32, binary64, and binary128 (commonly: float, double, long double).
7488 * S sign:1 exp:8 mantissa:23
7489 * (exponent bias 127, hidden first one-bit)
7491 * T sign:1 exp:11 mantissa:52
7492 * (exponent bias 1022, hidden first one-bit)
7494 * X sign:1 exp:15 mantissa:112
7495 * (exponent bias 16382, hidden first one-bit)
7499 #ifdef DOUBLE_IS_VAX_FLOAT
7500 # define DOUBLE_VAX_ENDIAN
7503 #ifdef DOUBLE_IS_IEEE_FORMAT
7504 /* All the basic IEEE formats have the implicit bit,
7505 * except for the x86 80-bit extended formats, which will undef this.
7506 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7507 * do not have the implicit bit of one. */
7508 # define NV_IMPLICIT_BIT
7511 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7513 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7514 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7515 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7516 # define LONGDOUBLE_LITTLE_ENDIAN
7519 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7520 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7521 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7522 # define LONGDOUBLE_BIG_ENDIAN
7525 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7526 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7527 # define LONGDOUBLE_MIX_ENDIAN
7530 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7531 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7532 # define LONGDOUBLE_X86_80_BIT
7533 # ifdef USE_LONG_DOUBLE
7534 # undef NV_IMPLICIT_BIT
7535 # define NV_X86_80_BIT
7539 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7540 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7541 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7542 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7543 # define LONGDOUBLE_DOUBLEDOUBLE
7546 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7547 # define LONGDOUBLE_VAX_ENDIAN
7550 #endif /* LONG_DOUBLEKIND */
7552 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7553 # if defined(DOUBLE_LITTLE_ENDIAN)
7554 # define NV_LITTLE_ENDIAN
7555 # elif defined(DOUBLE_BIG_ENDIAN)
7556 # define NV_BIG_ENDIAN
7557 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7558 # define NV_MIX_ENDIAN
7560 #elif NVSIZE == DOUBLESIZE
7561 # ifdef DOUBLE_LITTLE_ENDIAN
7562 # define NV_LITTLE_ENDIAN
7564 # ifdef DOUBLE_BIG_ENDIAN
7565 # define NV_BIG_ENDIAN
7567 # ifdef DOUBLE_MIX_ENDIAN
7568 # define NV_MIX_ENDIAN
7570 # ifdef DOUBLE_VAX_ENDIAN
7571 # define NV_VAX_ENDIAN
7573 #elif NVSIZE == LONG_DOUBLESIZE
7574 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7575 # define NV_LITTLE_ENDIAN
7577 # ifdef LONGDOUBLE_BIG_ENDIAN
7578 # define NV_BIG_ENDIAN
7580 # ifdef LONGDOUBLE_MIX_ENDIAN
7581 # define NV_MIX_ENDIAN
7583 # ifdef LONGDOUBLE_VAX_ENDIAN
7584 # define NV_VAX_ENDIAN
7588 /* We have somehow managed not to define the denormal/subnormal
7591 * This may happen if the compiler doesn't expose the C99 math like
7592 * the fpclassify() without some special switches. Perl tries to
7593 * stay C89, so for example -std=c99 is not an option.
7595 * The Perl_isinf() and Perl_isnan() should have been defined even if
7596 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7597 * from the C89 DBL_MIN or moral equivalent. */
7598 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7599 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7602 /* This is not a great fallback: subnormals tests will fail,
7603 * but at least Perl will link and 99.999% of tests will work. */
7604 #if !defined(Perl_fp_class_denorm)
7605 # define Perl_fp_class_denorm(x) FALSE
7608 #ifdef DOUBLE_IS_IEEE_FORMAT
7609 # define DOUBLE_HAS_INF
7610 # define DOUBLE_HAS_NAN
7613 #ifdef DOUBLE_HAS_NAN
7619 /* PL_inf and PL_nan initialization.
7621 * For inf and nan initialization the ultimate fallback is dividing
7622 * one or zero by zero: however, some compilers will warn or even fail
7623 * on divide-by-zero, but hopefully something earlier will work.
7625 * If you are thinking of using HUGE_VAL for infinity, or using
7626 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7627 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7628 * and the math functions might be just generating DBL_MAX, or even zero.
7630 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7631 * Though logically correct, some compilers (like Visual C 2003)
7632 * falsely misoptimize that to zero (x-x is always zero, right?)
7634 * Finally, note that not all floating point formats define Inf (or NaN).
7635 * For the infinity a large number may be used instead. Operations that
7636 * under the IEEE floating point would return Inf or NaN may return
7637 * either large numbers (positive or negative), or they may cause
7638 * a floating point exception or some other fault.
7641 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7642 # ifndef USE_CPLUSPLUS
7643 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7646 # ifdef USE_QUADMATH
7647 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7649 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7650 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7651 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7652 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7653 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7655 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7656 # if defined(LDBL_INFINITY)
7657 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7658 # elif defined(LDBL_INF)
7659 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7660 # elif defined(INFINITY)
7661 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7663 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7665 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7668 # if defined(DBL_INFINITY)
7669 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7670 # elif defined(DBL_INF)
7671 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7672 # elif defined(INFINITY) /* C99 */
7673 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7675 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7677 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7682 # ifdef USE_QUADMATH
7683 /* Cannot use nanq("0") for PL_nan because not a compile-time
7685 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7686 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7687 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7688 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7689 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7691 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7692 # if defined(LDBL_NAN)
7693 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7694 # elif defined(LDBL_QNAN)
7695 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7697 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7699 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7702 # if defined(DBL_NAN)
7703 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7704 # elif defined(DBL_QNAN)
7705 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7706 # elif defined(NAN) /* C99 */
7707 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7709 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7714 # ifndef USE_CPLUSPLUS
7715 GCC_DIAG_RESTORE_DECL;
7720 INFNAN_NV_U8_DECL PL_inf;
7721 INFNAN_NV_U8_DECL PL_nan;
7727 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7728 * we will define NV_INF/NV_NAN as the nv part of the global const
7729 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7730 * might not be a compile-time constant, in which case it cannot be
7731 * used to initialize PL_inf/PL_nan above. */
7733 # define NV_INF PL_inf.nv
7736 # define NV_NAN PL_nan.nv
7739 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7740 * "nan-ness". Part of the payload is the quiet/signaling bit.
7741 * To back up a bit (harhar):
7743 * For IEEE 754 64-bit formats [1]:
7745 * s 000 (mantissa all-zero) zero
7746 * s 000 (mantissa non-zero) subnormals (denormals)
7747 * s 001 ... 7fe normals
7750 * For IEEE 754 128-bit formats:
7752 * s 0000 (mantissa all-zero) zero
7753 * s 0000 (mantissa non-zero) subnormals (denormals)
7754 * s 0001 ... 7ffe normals
7757 * [1] this looks like big-endian, but applies equally to little-endian.
7759 * s = Sign bit. Yes, zeros and nans can have negative sign,
7760 * the interpretation is application-specific.
7762 * q = Quietness bit, the interpretation is platform-specific.
7763 * Most platforms have the most significant bit being one
7764 * meaning quiet, but some (older mips, hppa) have the msb
7765 * being one meaning signaling. Note that the above means
7766 * that on most platforms there cannot be signaling nan with
7767 * zero payload because that is identical with infinity;
7768 * while conversely on older mips/hppa there cannot be a quiet nan
7769 * because that is identical with infinity.
7771 * Moreover, whether there is any behavioral difference
7772 * between quiet and signaling NaNs, depends on the platform.
7774 * x86 80-bit extended precision is different, the mantissa bits:
7776 * 63 62 61 30387+ pre-387 visual c
7777 * -------- ---- -------- --------
7778 * 0 0 0 invalid infinity
7779 * 0 0 1 invalid snan
7780 * 0 1 0 invalid snan
7781 * 0 1 1 invalid snan
7782 * 1 0 0 infinity snan 1.#INF
7783 * 1 0 1 snan 1.#SNAN
7784 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7785 * 1 1 1 qnan 1.#QNAN
7787 * This means that in this format there are 61 bits available
7788 * for the nan payload.
7790 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7791 * simply cannot preserve the bit. You can either use the 80-bit
7792 * extended precision (long double, -Duselongdouble), or use x86-64.
7794 * In all platforms, the payload bytes (and bits, some of them are
7795 * often in a partial byte) themselves can be either all zero (x86),
7796 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7797 * or in a double-double, the first half of the payload can follow the
7798 * native double, while in the second half the payload can be all
7799 * zeros. (Therefore the mask for payload bits is not necessarily
7800 * identical to bit complement of the NaN.) Another way of putting
7801 * this: the payload for the default NaN might not be zero.
7803 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7804 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7807 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7808 * On normal floats, the sign bit being on means negative. But this may,
7809 * or may not, be reverted on NaNs: in other words, the default NaN might
7810 * have the sign bit on, and therefore look like negative if you look
7811 * at it at the bit level.
7813 * NaN payloads are not propagated even on copies, or in arithmetics.
7814 * They *might* be, according to some rules, on your particular
7815 * cpu/os/compiler/libraries, but no guarantees.
7817 * To summarize, on most platforms, and for 64-bit doubles
7818 * (using big-endian ordering here):
7820 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7821 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7822 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7823 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7825 * The C99 nan() is supposed to generate *quiet* NaNs.
7827 * Note the asymmetry:
7828 * The 7FF0000000000000 is positive infinity,
7829 * the FFF0000000000000 is negative infinity.
7832 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7833 * For the standard IEEE 754 fp this number is usually one less that
7834 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7835 * real. For the 80-bit extended precision formats (x86*), the number
7836 * of mantissa bits... depends. For normal floats, it's 64. But for
7837 * the inf/nan, it's different (zero for inf, 61 for nan).
7838 * NVMANTBITS works for normal floats. */
7840 /* We do not want to include the quiet/signaling bit. */
7841 #define NV_NAN_BITS (NVMANTBITS - 1)
7843 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7844 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7845 # define NV_NAN_QS_BYTE_OFFSET 13
7846 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7847 # define NV_NAN_QS_BYTE_OFFSET 2
7848 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7849 # define NV_NAN_QS_BYTE_OFFSET 7
7850 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7851 # define NV_NAN_QS_BYTE_OFFSET 2
7852 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7853 # define NV_NAN_QS_BYTE_OFFSET 13
7854 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7855 # define NV_NAN_QS_BYTE_OFFSET 1
7856 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7857 # define NV_NAN_QS_BYTE_OFFSET 9
7858 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7859 # define NV_NAN_QS_BYTE_OFFSET 6
7861 # error "Unexpected long double format"
7864 # ifdef USE_QUADMATH
7865 # ifdef NV_LITTLE_ENDIAN
7866 # define NV_NAN_QS_BYTE_OFFSET 13
7867 # elif defined(NV_BIG_ENDIAN)
7868 # define NV_NAN_QS_BYTE_OFFSET 2
7870 # error "Unexpected quadmath format"
7872 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7873 # define NV_NAN_QS_BYTE_OFFSET 2
7874 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7875 # define NV_NAN_QS_BYTE_OFFSET 1
7876 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7877 # define NV_NAN_QS_BYTE_OFFSET 6
7878 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7879 # define NV_NAN_QS_BYTE_OFFSET 1
7880 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7881 # define NV_NAN_QS_BYTE_OFFSET 13
7882 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7883 # define NV_NAN_QS_BYTE_OFFSET 2
7884 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7885 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7886 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7887 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7889 /* For example the VAX formats should never
7890 * get here because they do not have NaN. */
7891 # error "Unexpected double format"
7894 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7895 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7896 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7897 * for the quiet/signaling */
7898 #if defined(USE_LONG_DOUBLE) && \
7899 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7900 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7901 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7902 #elif defined(USE_LONG_DOUBLE) && \
7903 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7904 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7905 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7906 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7907 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7909 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7911 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7912 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7913 * (bytes ordered big-endianly) for the quiet/signaling bit
7914 * for the quiet/signaling */
7915 #define NV_NAN_QS_BIT_OFFSET \
7916 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7917 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7918 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7919 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7920 #define NV_NAN_QS_QUIET \
7921 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7922 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7923 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7924 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7925 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7926 * Note however that these do not check whether the nvp is a NaN. */
7927 #define NV_NAN_IS_QUIET(nvp) \
7928 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7929 #define NV_NAN_IS_SIGNALING(nvp) \
7930 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7931 #define NV_NAN_SET_QUIET(nvp) \
7932 (NV_NAN_QS_QUIET ? \
7933 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7934 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7935 #define NV_NAN_SET_SIGNALING(nvp) \
7936 (NV_NAN_QS_QUIET ? \
7937 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7938 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7939 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7941 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7943 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7944 * 0xFF means "don't go here".*/
7946 /* Shorthands to avoid typoses. */
7947 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7948 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7949 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7950 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7951 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7952 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7953 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7954 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7955 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7956 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7957 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7958 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7959 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7960 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7961 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7962 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7963 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7964 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7965 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7966 NV_NAN_PAYLOAD_PERM_7_TO_0
7967 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7968 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7969 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7970 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7971 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7972 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7973 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7974 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7976 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7977 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7978 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7979 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7980 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7981 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7982 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7983 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7984 # if LONG_DOUBLESIZE == 10
7985 # define NV_NAN_PAYLOAD_MASK \
7986 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7988 # define NV_NAN_PAYLOAD_PERM \
7989 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7990 # elif LONG_DOUBLESIZE == 12
7991 # define NV_NAN_PAYLOAD_MASK \
7992 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7993 0x00, 0x00, 0x00, 0x00
7994 # define NV_NAN_PAYLOAD_PERM \
7995 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7996 # elif LONG_DOUBLESIZE == 16
7997 # define NV_NAN_PAYLOAD_MASK \
7998 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7999 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8000 # define NV_NAN_PAYLOAD_PERM \
8001 NV_NAN_PAYLOAD_PERM_0_TO_7, \
8002 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8004 # error "Unexpected x86 80-bit little-endian long double format"
8006 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
8007 # if LONG_DOUBLESIZE == 10
8008 # define NV_NAN_PAYLOAD_MASK \
8009 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8011 # define NV_NAN_PAYLOAD_PERM \
8012 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
8013 # elif LONG_DOUBLESIZE == 12
8014 # define NV_NAN_PAYLOAD_MASK \
8015 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8016 0xff, 0xff, 0x00, 0x00
8017 # define NV_NAN_PAYLOAD_PERM \
8018 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
8019 # elif LONG_DOUBLESIZE == 16
8020 # define NV_NAN_PAYLOAD_MASK \
8021 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
8022 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8023 # define NV_NAN_PAYLOAD_PERM \
8024 NV_NAN_PAYLOAD_PERM_7_TO_0, \
8025 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
8027 # error "Unexpected x86 80-bit big-endian long double format"
8029 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
8030 /* For double-double we assume only the first double (in LE or BE terms)
8031 * is used for NaN. */
8032 # define NV_NAN_PAYLOAD_MASK \
8033 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8034 # define NV_NAN_PAYLOAD_PERM \
8035 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8036 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
8037 # define NV_NAN_PAYLOAD_MASK \
8038 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8039 # define NV_NAN_PAYLOAD_PERM \
8040 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8041 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
8042 # define NV_NAN_PAYLOAD_MASK \
8043 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8044 # define NV_NAN_PAYLOAD_PERM \
8045 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8046 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
8047 # define NV_NAN_PAYLOAD_MASK \
8048 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8049 # define NV_NAN_PAYLOAD_PERM \
8050 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8052 # error "Unexpected long double format"
8055 # ifdef USE_QUADMATH /* quadmath is not long double */
8056 # ifdef NV_LITTLE_ENDIAN
8057 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8058 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8059 # elif defined(NV_BIG_ENDIAN)
8060 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8061 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8063 # error "Unexpected quadmath format"
8065 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
8066 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
8067 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
8068 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
8069 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
8070 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
8071 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
8072 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
8073 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
8074 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
8075 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
8076 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
8077 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
8078 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
8079 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
8080 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
8081 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
8082 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
8083 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
8084 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
8085 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
8086 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
8087 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
8088 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
8090 # error "Unexpected double format"
8094 #endif /* DOUBLE_HAS_NAN */
8099 (KEEP THIS LAST IN perl.h!)
8141 so that Configure picks them up.
8143 (KEEP THIS LAST IN perl.h!)
8147 #endif /* Include guard */
8150 * ex: set ts=8 sts=4 sw=4 et: