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 */
90 # define START_EXTERN_C extern "C" {
91 # define END_EXTERN_C }
92 # define EXTERN_C extern "C"
94 # define START_EXTERN_C
96 # define EXTERN_C extern
99 /* Fallback definitions in case we don't have definitions from config.h.
100 This should only matter for systems that don't use Configure and
101 haven't been modified to define PERL_STATIC_INLINE yet.
103 #if !defined(PERL_STATIC_INLINE)
104 # ifdef HAS_STATIC_INLINE
105 # define PERL_STATIC_INLINE static inline
107 # define PERL_STATIC_INLINE static
111 /* this used to be off by default, now its on, see perlio.h */
112 #define PERLIO_FUNCS_CONST
114 #ifdef PERL_IMPLICIT_CONTEXT
115 # ifndef MULTIPLICITY
116 # define MULTIPLICITY
118 # define tTHX PerlInterpreter*
119 # define pTHX tTHX my_perl PERL_UNUSED_DECL
120 # define aTHX my_perl
121 # define aTHXa(a) aTHX = (tTHX)a
122 # define dTHXa(a) pTHX = (tTHX)a
123 # define dTHX pTHX = PERL_GET_THX
136 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
137 # define PERL_TRACK_MEMPOOL
140 # undef PERL_TRACK_MEMPOOL
144 # define dTHX_DEBUGGING dTHX
146 # define dTHX_DEBUGGING dNOOP
149 #define STATIC static
152 /* Do not use these macros. They were part of PERL_OBJECT, which was an
153 * implementation of multiplicity using C++ objects. They have been left
154 * here solely for the sake of XS code which has incorrectly
157 #define CPERLscope(x) x
158 #define CPERLarg void
161 #define PERL_OBJECT_THIS
162 #define _PERL_OBJECT_THIS
163 #define PERL_OBJECT_THIS_
164 #define CALL_FPTR(fptr) (*fptr)
165 #define MEMBER_TO_FPTR(name) name
166 #endif /* !PERL_CORE */
168 #define CALLRUNOPS PL_runops
170 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
172 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
173 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
174 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
175 (strbeg),(minend),(sv),(data),(flags))
176 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
177 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
178 (strend),(flags),(data))
179 #define CALLREG_INTUIT_STRING(prog) \
180 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
182 #define CALLREGFREE(prog) \
183 Perl_pregfree(aTHX_ (prog))
185 #define CALLREGFREE_PVT(prog) \
186 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
188 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
189 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
191 #define CALLREG_NUMBUF_STORE(rx,paren,value) \
192 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
194 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
195 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
197 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
198 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
200 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
201 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
203 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
204 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
206 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
207 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
209 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
210 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
212 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
213 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
215 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
216 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
218 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
219 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
221 #define CALLREG_NAMED_BUFF_COUNT(rx) \
222 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
224 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
225 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
227 #define CALLREG_PACKAGE(rx) \
228 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
230 #if defined(USE_ITHREADS)
231 #define CALLREGDUPE(prog,param) \
232 Perl_re_dup(aTHX_ (prog),(param))
234 #define CALLREGDUPE_PVT(prog,param) \
235 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
239 /* some compilers impersonate gcc */
240 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
241 # define PERL_IS_GCC 1
244 /* In case Configure was not used (we are using a "canned config"
245 * such as Win32, or a cross-compilation setup, for example) try going
246 * by the gcc major and minor versions. One useful URL is
247 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
248 * but contrary to this information warn_unused_result seems
249 * not to be in gcc 3.3.5, at least. --jhi
250 * Also, when building extensions with an installed perl, this allows
251 * the user to upgrade gcc and get the right attributes, rather than
252 * relying on the list generated at Configure time. --AD
253 * Set these up now otherwise we get confused when some of the <*thread.h>
254 * includes below indirectly pull in <perlio.h> (which needs to know if we
255 * have HASATTRIBUTE_FORMAT).
259 #if defined __GNUC__ && !defined(__INTEL_COMPILER)
260 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
261 # define HASATTRIBUTE_DEPRECATED
263 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
264 # define HASATTRIBUTE_FORMAT
265 # if defined __MINGW32__
266 # define PRINTF_FORMAT_NULL_OK
269 # if __GNUC__ >= 3 /* 3.0 -> */
270 # define HASATTRIBUTE_MALLOC
272 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
273 # define HASATTRIBUTE_NONNULL
275 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
276 # define HASATTRIBUTE_NORETURN
278 # if __GNUC__ >= 3 /* gcc 3.0 -> */
279 # define HASATTRIBUTE_PURE
281 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
282 # define HASATTRIBUTE_UNUSED
284 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
285 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
287 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
288 # define HASATTRIBUTE_WARN_UNUSED_RESULT
290 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
291 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
292 # define HASATTRIBUTE_ALWAYS_INLINE
295 #endif /* #ifndef PERL_MICRO */
297 #ifdef HASATTRIBUTE_DEPRECATED
298 # define __attribute__deprecated__ __attribute__((deprecated))
300 #ifdef HASATTRIBUTE_FORMAT
301 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
303 #ifdef HASATTRIBUTE_MALLOC
304 # define __attribute__malloc__ __attribute__((__malloc__))
306 #ifdef HASATTRIBUTE_NONNULL
307 # define __attribute__nonnull__(a) __attribute__((nonnull(a)))
309 #ifdef HASATTRIBUTE_NORETURN
310 # define __attribute__noreturn__ __attribute__((noreturn))
312 #ifdef HASATTRIBUTE_PURE
313 # define __attribute__pure__ __attribute__((pure))
315 #ifdef HASATTRIBUTE_UNUSED
316 # define __attribute__unused__ __attribute__((unused))
318 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
319 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
321 #ifdef HASATTRIBUTE_ALWAYS_INLINE
322 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
323 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
324 # define __attribute__always_inline__ __attribute__((always_inline))
328 /* If we haven't defined the attributes yet, define them to blank. */
329 #ifndef __attribute__deprecated__
330 # define __attribute__deprecated__
332 #ifndef __attribute__format__
333 # define __attribute__format__(x,y,z)
335 #ifndef __attribute__malloc__
336 # define __attribute__malloc__
338 #ifndef __attribute__nonnull__
339 # define __attribute__nonnull__(a)
341 #ifndef __attribute__noreturn__
342 # define __attribute__noreturn__
344 #ifndef __attribute__pure__
345 # define __attribute__pure__
347 #ifndef __attribute__unused__
348 # define __attribute__unused__
350 #ifndef __attribute__warn_unused_result__
351 # define __attribute__warn_unused_result__
353 #ifndef __attribute__always_inline__
354 # define __attribute__always_inline__
357 /* Some OS warn on NULL format to printf */
358 #ifdef PRINTF_FORMAT_NULL_OK
359 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
361 # define __attribute__format__null_ok__(x,y,z)
365 * Because of backward compatibility reasons the PERL_UNUSED_DECL
366 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
368 * Note that there are C compilers such as MetroWerks CodeWarrior
369 * which do not have an "inlined" way (like the gcc __attribute__) of
370 * marking unused variables (they need e.g. a #pragma) and therefore
371 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
372 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
376 #ifndef PERL_UNUSED_DECL
377 # define PERL_UNUSED_DECL __attribute__unused__
381 * for silencing unused variables that are actually used most of the time,
382 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
383 * or variables/arguments that are used only in certain configurations.
385 #ifndef PERL_UNUSED_ARG
386 # define PERL_UNUSED_ARG(x) ((void)sizeof(x))
388 #ifndef PERL_UNUSED_VAR
389 # define PERL_UNUSED_VAR(x) ((void)sizeof(x))
392 #if defined(USE_ITHREADS)
393 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
395 # define PERL_UNUSED_CONTEXT
398 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
399 * g++ allows them but seems to have problems with them
400 * (insane errors ensue).
401 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
403 #if defined(PERL_GCC_PEDANTIC) || \
404 (defined(__GNUC__) && defined(__cplusplus) && \
405 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
406 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
407 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN
411 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
412 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
414 * The main reason for this is that the combination of gcc -Wunused-result
415 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
416 * be silenced with casting to void. This causes trouble when the system
417 * header files use the attribute.
419 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
420 * is there for a good reason: you might lose success/failure information,
421 * or leak resources, or changes in resources.
423 * But sometimes you just want to ignore the return value, e.g. on
424 * codepaths soon ending up in abort, or in "best effort" attempts,
425 * or in situations where there is no good way to handle failures.
427 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
428 * another possibility is that you can capture the return value
429 * and use PERL_UNUSED_VAR on that.
431 * The __typeof__() is used instead of typeof() since typeof() is not
432 * available under strict C89, and because of compilers masquerading
433 * as gcc (clang and icc), we want exactly the gcc extension
434 * __typeof__ and nothing else.
436 #ifndef PERL_UNUSED_RESULT
437 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
438 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
440 # define PERL_UNUSED_RESULT(v) ((void)(v))
444 #if defined(_MSC_VER)
445 /* XXX older MSVC versions have a smallish macro buffer */
446 #define PERL_SMALL_MACRO_BUFFER
449 /* on gcc (and clang), specify that a warning should be temporarily
452 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
454 * GCC_DIAG_RESTORE_DECL;
456 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
458 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
459 * clang only pretends to be GCC 4.2, but still supports push/pop.
461 * Note on usage: all macros must be used at a place where a declaration
462 * or statement can occur, i.e., not in the middle of an expression.
463 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
464 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
465 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
466 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
467 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
468 * and behave syntactically as statements (like NOOP).
472 #if defined(__clang__) || defined(__clang) || \
473 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
474 # define GCC_DIAG_PRAGMA(x) _Pragma (#x)
475 /* clang has "clang diagnostic" pragmas, but also understands gcc. */
476 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
477 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
478 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
480 # define GCC_DIAG_IGNORE(w)
481 # define GCC_DIAG_RESTORE
483 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
484 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
485 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
486 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
487 /* for clang specific pragmas */
488 #if defined(__clang__) || defined(__clang)
489 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
490 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
491 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
492 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
494 # define CLANG_DIAG_IGNORE(w)
495 # define CLANG_DIAG_RESTORE
497 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
498 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
499 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
500 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
502 #if defined(_MSC_VER) && (_MSC_VER >= 1300)
503 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
504 __pragma(warning(disable : x))
505 # define MSVC_DIAG_RESTORE __pragma(warning(pop))
507 # define MSVC_DIAG_IGNORE(x)
508 # define MSVC_DIAG_RESTORE
510 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
511 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
512 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
513 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
515 #define NOOP /*EMPTY*/(void)0
516 #define dNOOP struct Perl___notused_struct
519 /* Don't bother defining tTHX ; using it outside
520 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
526 # define aTHXa(a) NOOP
527 # define dTHXa(a) dNOOP
542 /* Backwards compatibility macro for XS code. It used to be part of
543 * the PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
547 /* these are only defined for compatibility; should not be used internally */
548 #if !defined(pTHXo) && !defined(PERL_CORE)
550 # define pTHXo_ pTHX_
552 # define aTHXo_ aTHX_
554 # define dTHXoa(x) dTHXa(x)
558 # define pTHXx PerlInterpreter *my_perl
559 # define pTHXx_ pTHXx,
560 # define aTHXx my_perl
561 # define aTHXx_ aTHXx,
565 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
566 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
567 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
568 #ifdef PERL_IMPLICIT_SYS
574 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
575 # ifndef PERL_USE_GCC_BRACE_GROUPS
576 # define PERL_USE_GCC_BRACE_GROUPS
581 =head1 Miscellaneous Functions
583 =for apidoc AmnUu|void|STMT_START
585 STMT_START { statements; } STMT_END;
587 can be used as a single statement, as in
589 if (x) STMT_START { ... } STMT_END; else ...
591 These are often used in macro definitions. Note that you can't return a value
594 =for apidoc AmnUhu|void|STMT_END
598 Trying to select a version that gives no warnings...
600 #if !(defined(STMT_START) && defined(STMT_END))
601 # ifdef PERL_USE_GCC_BRACE_GROUPS
602 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
605 # define STMT_START do
606 # define STMT_END while (0)
610 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
611 # define BYTEORDER 0x1234
614 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
621 * The following contortions are brought to you on behalf of all the
622 * standards, semi-standards, de facto standards, not-so-de-facto standards
623 * of the world, as well as all the other botches anyone ever thought of.
624 * The basic theory is that if we work hard enough here, the rest of the
625 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
628 /* define this once if either system, instead of cluttering up the src */
629 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
633 /* These exist only for back-compat with XS modules. */
636 #define CAN_PROTOTYPE
643 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
644 * you get a perl without taint support, but doubtlessly with a lesser
645 * degree of support. Do not do so unless you know exactly what it means
646 * technically, have a good reason to do so, and know exactly how the
647 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
648 * a potential security risk due to flat out ignoring the security-relevant
649 * taint flags. This being said, a perl without taint support compiled in
650 * has marginal run-time performance benefits.
651 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
652 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
653 * silently ignores -t/-T instead of throwing an exception.
655 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
656 * voids your nonexistent warranty!
658 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
659 # define NO_TAINT_SUPPORT 1
662 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
663 * operations into no-ops for a very modest speed-up. Enable only if you
664 * know what you're doing: tests and CPAN modules' tests are bound to fail.
666 #ifdef NO_TAINT_SUPPORT
668 # define TAINT_NOT NOOP
669 # define TAINT_IF(c) NOOP
670 # define TAINT_ENV() NOOP
671 # define TAINT_PROPER(s) NOOP
672 # define TAINT_set(s) NOOP
674 # define TAINTING_get 0
675 # define TAINTING_set(s) NOOP
676 # define TAINT_WARN_get 0
677 # define TAINT_WARN_set(s) NOOP
679 /* Set to tainted if we are running under tainting mode */
680 # define TAINT (PL_tainted = PL_tainting)
682 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
683 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
684 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
685 /* croak or warn if tainting */
686 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
687 taint_proper(NULL, s); \
689 # define TAINT_set(s) (PL_tainted = (s))
690 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
691 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
692 # define TAINTING_set(s) (PL_tainting = (s))
693 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
697 # define TAINT_WARN_set(s) (PL_taint_warn = (s))
700 /* flags used internally only within pp_subst and pp_substcont */
702 # define SUBST_TAINT_STR 1 /* string tainted */
703 # define SUBST_TAINT_PAT 2 /* pattern tainted */
704 # define SUBST_TAINT_REPL 4 /* replacement tainted */
705 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
706 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
709 /* XXX All process group stuff is handled in pp_sys.c. Should these
710 defines move there? If so, I could simplify this a lot. --AD 9/96.
712 /* Process group stuff changed from traditional BSD to POSIX.
713 perlfunc.pod documents the traditional BSD-style syntax, so we'll
714 try to preserve that, if possible.
717 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
718 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
719 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
720 #elif defined(HAS_SETPGRP2)
721 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
723 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
724 # define HAS_SETPGRP /* Well, effectively it does . . . */
727 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
728 our life easier :-) so we'll try it.
731 # define BSD_GETPGRP(pid) getpgid((pid))
732 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
733 # define BSD_GETPGRP(pid) getpgrp((pid))
734 #elif defined(HAS_GETPGRP2)
735 # define BSD_GETPGRP(pid) getpgrp2((pid))
737 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
738 # define HAS_GETPGRP /* Well, effectively it does . . . */
741 /* These are not exact synonyms, since setpgrp() and getpgrp() may
742 have different behaviors, but perl.h used to define USE_BSDPGRP
743 (prior to 5.003_05) so some extension might depend on it.
745 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
751 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
752 pthread.h must be included before all other header files.
754 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
755 # include <pthread.h>
758 #include <sys/types.h>
774 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
787 # include <xlocale.h>
790 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008
791 * functions are available, or 2) just the setlocale() function. This logic is
792 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
794 #if ! defined(NO_LOCALE)
796 # if ! defined(NO_POSIX_2008_LOCALE) \
797 && defined(HAS_NEWLOCALE) \
798 && defined(HAS_USELOCALE) \
799 && defined(HAS_DUPLOCALE) \
800 && defined(HAS_FREELOCALE) \
801 && defined(LC_ALL_MASK)
803 /* For simplicity, the code is written to assume that any platform advanced
804 * enough to have the Posix 2008 locale functions has LC_ALL. The final
805 * test above makes sure that assumption is valid */
807 # define HAS_POSIX_2008_LOCALE
809 # elif defined(HAS_SETLOCALE)
815 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
817 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
818 && defined(HAS_STRXFRM)
819 # define USE_LOCALE_COLLATE
821 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
822 # define USE_LOCALE_CTYPE
824 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
825 # define USE_LOCALE_NUMERIC
827 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
828 # define USE_LOCALE_MESSAGES
830 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
831 # define USE_LOCALE_MONETARY
833 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
834 # define USE_LOCALE_TIME
836 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
837 # define USE_LOCALE_ADDRESS
839 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
840 # define USE_LOCALE_IDENTIFICATION
842 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
843 # define USE_LOCALE_MEASUREMENT
845 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
846 # define USE_LOCALE_PAPER
848 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
849 # define USE_LOCALE_TELEPHONE
851 # if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
852 # define USE_LOCALE_SYNTAX
854 # if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
855 # define USE_LOCALE_TOD
858 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and
859 * changes here MUST also be made there */
861 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
862 # define USE_POSIX_2008_LOCALE
863 # ifndef USE_THREAD_SAFE_LOCALE
864 # define USE_THREAD_SAFE_LOCALE
867 * -DUSE_THREAD_SAFE_LOCALE, will do so even
868 * on unthreaded builds */
869 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
870 && ( defined(HAS_POSIX_2008_LOCALE) \
871 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
872 && ! defined(NO_THREAD_SAFE_LOCALE)
873 # ifndef USE_THREAD_SAFE_LOCALE
874 # define USE_THREAD_SAFE_LOCALE
876 # ifdef HAS_POSIX_2008_LOCALE
877 # define USE_POSIX_2008_LOCALE
882 /* Microsoft documentation reads in the change log for VS 2015:
883 * "The localeconv function declared in locale.h now works correctly when
884 * per-thread locale is enabled. In previous versions of the library, this
885 * function would return the lconv data for the global locale, not the
888 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
889 # define TS_W32_BROKEN_LOCALECONV
895 # ifdef PARAM_NEEDS_TYPES
896 # include <sys/types.h>
898 # include <sys/param.h>
901 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
902 value something like 199306. This may be useful if no more-specific
903 feature test is available.
911 /* Use all the "standard" definitions */
914 /* If this causes problems, set i_unistd=undef in the hint file. */
916 # if defined(__amigaos4__)
918 # include <netinet/in.h>
922 # if defined(__amigaos4__)
923 /* Under AmigaOS 4 newlib.library provides an environ. However using
924 * it doesn't give us enough control over inheritance of variables by
925 * subshells etc. so replace with custom version based on abc-shell
927 extern char **myenviron;
929 # define environ myenviron
935 # include <sys/wait.h>
938 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
939 EXTERN_C int syscall(int, ...);
942 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
943 EXTERN_C int usleep(unsigned int);
946 /* macros for correct constant construction. These are in C99 <stdint.h>
947 * (so they will not be available in strict C89 mode), but they are nice, so
948 * let's define them if necessary. */
951 # define UINT16_C(x) ((U16_TYPE)x##U)
953 # define UINT16_C(x) ((U16_TYPE)x##UL)
959 # define UINT32_C(x) ((U32_TYPE)x##U)
961 # define UINT32_C(x) ((U32_TYPE)x##UL)
966 typedef intmax_t PERL_INTMAX_T;
967 typedef uintmax_t PERL_UINTMAX_T;
970 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
971 * actually mean what it has always been documented to mean (see RT #119753)
972 * and is explicitly turned off outside of core with dire warnings about
973 * removing the undef. */
975 #if defined(QUADKIND)
977 # undef PeRl_UINT64_C
978 /* Prefer the native integer types (int and long) over long long
979 * (which is not C89) and Win32-specific __int64. */
980 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8
981 # define PeRl_INT64_C(c) (c)
982 # define PeRl_UINT64_C(c) CAT2(c,U)
984 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
985 # define PeRl_INT64_C(c) CAT2(c,L)
986 # define PeRl_UINT64_C(c) CAT2(c,UL)
988 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
989 # define PeRl_INT64_C(c) CAT2(c,LL)
990 # define PeRl_UINT64_C(c) CAT2(c,ULL)
992 # if QUADKIND == QUAD_IS___INT64
993 # define PeRl_INT64_C(c) CAT2(c,I64)
994 # define PeRl_UINT64_C(c) CAT2(c,UI64)
996 # ifndef PeRl_INT64_C
997 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
998 # define PeRl_UINT64_C(c) ((U64TYPE)(c))
1000 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1001 * not fly with C89-pedantic gcc, so let's undefine them first so that
1002 * we can redefine them with our native integer preferring versions. */
1003 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1008 # define INT64_C(c) PeRl_INT64_C(c)
1011 # define UINT64_C(c) PeRl_UINT64_C(c)
1015 typedef I64TYPE PERL_INTMAX_T;
1016 typedef U64TYPE PERL_UINTMAX_T;
1019 # define INTMAX_C(c) INT64_C(c)
1022 # define UINTMAX_C(c) UINT64_C(c)
1025 #else /* below QUADKIND is undefined */
1027 /* Perl doesn't work on 16 bit systems, so must be 32 bit */
1029 typedef I32TYPE PERL_INTMAX_T;
1030 typedef U32TYPE PERL_UINTMAX_T;
1033 # define INTMAX_C(c) INT32_C(c)
1036 # define UINTMAX_C(c) UINT32_C(c)
1039 #endif /* no QUADKIND */
1043 /* byte-swapping functions for big-/little-endian conversion */
1044 # define _swab_16_(x) ((U16)( \
1045 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1046 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1048 # define _swab_32_(x) ((U32)( \
1049 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1050 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1051 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1052 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1055 # define _swab_64_(x) ((U64)( \
1056 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1057 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1058 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1059 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1060 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1061 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1062 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1063 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1066 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1067 at least on FreeBSD. YMMV, so experiment. */
1068 #ifndef PERL_ARENA_SIZE
1069 #define PERL_ARENA_SIZE 4080
1072 /* Maximum level of recursion */
1073 #ifndef PERL_SUB_DEPTH_WARN
1074 #define PERL_SUB_DEPTH_WARN 100
1077 #endif /* PERL_CORE */
1079 /* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1080 * It determines the size of local arrays in S_maybe_multiconcat() and
1083 #define PERL_MULTICONCAT_MAXARG 64
1085 /* The indexes of fields of a multiconcat aux struct.
1086 * The fixed fields are followed by nargs+1 const segment lengths,
1087 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1090 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1091 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1092 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1093 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1094 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1095 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1096 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1097 multiconcat header */
1099 /* We no longer default to creating a new SV for GvSV.
1100 Do this before embed. */
1101 #ifndef PERL_CREATE_GVSV
1102 # ifndef PERL_DONT_CREATE_GVSV
1103 # define PERL_DONT_CREATE_GVSV
1107 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1108 #define PERL_USES_PL_PIDSTATUS
1111 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
1112 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1115 #define MEM_SIZE Size_t
1117 /* Round all values passed to malloc up, by default to a multiple of
1120 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1121 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1124 /* sv_grow() will expand strings by at least a certain percentage of
1125 the previously *used* length to avoid excessive calls to realloc().
1126 The default is 25% of the current length.
1128 #ifndef PERL_STRLEN_EXPAND_SHIFT
1129 # define PERL_STRLEN_EXPAND_SHIFT 2
1132 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1133 * onwards) when building Socket.xs, but we can just use a different definition
1134 * for STRUCT_OFFSET instead. */
1135 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1136 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1138 # include <stddef.h>
1139 # define STRUCT_OFFSET(s,m) offsetof(s,m)
1142 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1143 * in C89, but apparently there are platforms where it doesn't exist. See
1144 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1146 #ifdef PERL_GCC_PEDANTIC
1147 # undef HAS_PTRDIFF_T
1150 #ifdef HAS_PTRDIFF_T
1151 # define Ptrdiff_t ptrdiff_t
1153 # define Ptrdiff_t SSize_t
1156 # include <string.h>
1158 /* This comes after <stdlib.h> so we don't try to change the standard
1159 * library prototypes; we'll use our own in proto.h instead. */
1162 # ifdef PERL_POLLUTE_MALLOC
1163 # ifndef PERL_EXTMALLOC_DEF
1164 # define Perl_malloc malloc
1165 # define Perl_calloc calloc
1166 # define Perl_realloc realloc
1167 # define Perl_mfree free
1170 # define EMBEDMYMALLOC /* for compatibility */
1173 # define safemalloc Perl_malloc
1174 # define safecalloc Perl_calloc
1175 # define saferealloc Perl_realloc
1176 # define safefree Perl_mfree
1177 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1178 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1181 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1182 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1183 # define panic_write2(s) write(2, s, strlen(s))
1184 # define CHECK_MALLOC_TAINT(newval) \
1185 CHECK_MALLOC_TOO_LATE_FOR_( \
1187 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
1189 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
1190 if (doing_taint(argc,argv,env)) { \
1191 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1193 #else /* MYMALLOC */
1194 # define safemalloc safesysmalloc
1195 # define safecalloc safesyscalloc
1196 # define saferealloc safesysrealloc
1197 # define safefree safesysfree
1198 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1199 # define CHECK_MALLOC_TAINT(newval) ((void)0)
1200 # define MALLOC_CHECK_TAINT(argc,argv,env)
1201 #endif /* MYMALLOC */
1203 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
1204 #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)
1205 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1206 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1207 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1210 # define memzero(d,l) memset(d,0,l)
1214 # include <netinet/in.h>
1218 # include <arpa/inet.h>
1222 # include <sys/stat.h>
1225 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1226 This definition should ideally go into win32/win32.h, but S_IFIFO is
1227 used later here in perl.h before win32/win32.h is being included. */
1228 #if !defined(S_IFIFO) && defined(_S_IFIFO)
1229 # define S_IFIFO _S_IFIFO
1232 /* The stat macros for Unisoft System V/88 (and derivatives
1233 like UTekV) are broken, sometimes giving false positives. Undefine
1234 them here and let the code below set them to proper values.
1236 The ghs macro stands for GreenHills Software C-1.8.5 which
1237 is the C compiler for sysV88 and the various derivatives.
1238 This header file bug is corrected in gcc-2.5.8 and later versions.
1239 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1241 #if defined(m88k) && defined(ghs)
1253 # ifdef I_SYS_TIME_KERNEL
1256 # include <sys/time.h>
1257 # ifdef I_SYS_TIME_KERNEL
1262 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1263 # include <sys/times.h>
1268 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1269 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1272 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1273 # include <sys/socket.h>
1274 # if defined(USE_SOCKS) && defined(I_SOCKS)
1275 # if !defined(INCLUDE_PROTOTYPES)
1276 # define INCLUDE_PROTOTYPES /* for <socks.h> */
1277 # define PERL_SOCKS_NEED_PROTOTYPES
1280 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1281 # undef INCLUDE_PROTOTYPES
1282 # undef PERL_SOCKS_NEED_PROTOTYPES
1293 # include <net/errno.h>
1298 /* sockatmark() is so new (2001) that many places might have it hidden
1299 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1300 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1301 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1302 # if defined(__THROW) && defined(__GLIBC__)
1303 int sockatmark(int) __THROW;
1305 int sockatmark(int);
1309 #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. */
1310 EXTERN_C int fchdir(int);
1311 EXTERN_C int flock(int, int);
1312 EXTERN_C int fseeko(FILE *, off_t, int);
1313 EXTERN_C off_t ftello(FILE *);
1316 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1317 EXTERN_C char *crypt(const char *, const char *);
1320 #if defined(__cplusplus) && defined(__CYGWIN__)
1321 EXTERN_C char *crypt(const char *, const char *);
1327 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1329 Set C<errno>, and on VMS set C<vaxc$errno>.
1331 =for apidoc mn|void|dSAVEDERRNO
1333 Declare variables needed to save C<errno> and any operating system
1334 specific error number.
1336 =for apidoc mn|void|dSAVE_ERRNO
1338 Declare variables needed to save C<errno> and any operating system
1339 specific error number, and save them for optional later restoration
1340 by C<RESTORE_ERRNO>.
1342 =for apidoc mn|void|SAVE_ERRNO
1344 Save C<errno> and any operating system specific error number for
1345 optional later restoration by C<RESTORE_ERRNO>. Requires
1346 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1348 =for apidoc mn|void|RESTORE_ERRNO
1350 Restore C<errno> and any operating system specific error number that
1351 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1357 # undef SETERRNO /* SOCKS might have defined this */
1361 # define SETERRNO(errcode,vmserrcode) \
1363 set_errno(errcode); \
1364 set_vaxc_errno(vmserrcode); \
1366 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1367 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1368 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1369 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1371 # define LIB_INVARG LIB$_INVARG
1372 # define RMS_DIR RMS$_DIR
1373 # define RMS_FAC RMS$_FAC
1374 # define RMS_FEX RMS$_FEX
1375 # define RMS_FNF RMS$_FNF
1376 # define RMS_IFI RMS$_IFI
1377 # define RMS_ISI RMS$_ISI
1378 # define RMS_PRV RMS$_PRV
1379 # define SS_ACCVIO SS$_ACCVIO
1380 # define SS_DEVOFFLINE SS$_DEVOFFLINE
1381 # define SS_IVCHAN SS$_IVCHAN
1382 # define SS_NORMAL SS$_NORMAL
1383 # define SS_NOPRIV SS$_NOPRIV
1384 # define SS_BUFFEROVF SS$_BUFFEROVF
1386 # define LIB_INVARG 0
1394 # define SS_ACCVIO 0
1395 # define SS_DEVOFFLINE 0
1396 # define SS_IVCHAN 0
1397 # define SS_NORMAL 0
1398 # define SS_NOPRIV 0
1399 # define SS_BUFFEROVF 0
1403 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1404 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1405 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1406 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1410 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1411 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1412 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1413 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1417 # define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1421 # define dSAVEDERRNO int saved_errno
1422 # define dSAVE_ERRNO int saved_errno = errno
1423 # define SAVE_ERRNO (saved_errno = errno)
1424 # define RESTORE_ERRNO (errno = saved_errno)
1428 =head1 Warning and Dieing
1430 =for apidoc Amn|SV *|ERRSV
1432 Returns the SV for C<$@>, creating it if needed.
1434 =for apidoc Am|void|CLEAR_ERRSV
1436 Clear the contents of C<$@>, setting it to the empty string.
1438 This replaces any read-only SV with a fresh SV and removes any magic.
1440 =for apidoc Am|void|SANE_ERRSV
1442 Clean up ERRSV so we can safely set it.
1444 This replaces any read-only SV with a fresh writable copy and removes
1450 #define ERRSV GvSVn(PL_errgv)
1452 /* contains inlined gv_add_by_type */
1453 #define CLEAR_ERRSV() STMT_START { \
1454 SV ** const svp = &GvSV(PL_errgv); \
1456 *svp = newSVpvs(""); \
1457 } else if (SvREADONLY(*svp)) { \
1458 SvREFCNT_dec_NN(*svp); \
1459 *svp = newSVpvs(""); \
1461 SV *const errsv = *svp; \
1463 SvPOK_only(errsv); \
1464 if (SvMAGICAL(errsv)) { \
1470 /* contains inlined gv_add_by_type */
1471 #define SANE_ERRSV() STMT_START { \
1472 SV ** const svp = &GvSV(PL_errgv); \
1474 *svp = newSVpvs(""); \
1475 } else if (SvREADONLY(*svp)) { \
1476 SV *dupsv = newSVsv(*svp); \
1477 SvREFCNT_dec_NN(*svp); \
1480 SV *const errsv = *svp; \
1481 if (SvMAGICAL(errsv)) { \
1489 # define DEFSV (0 + GvSVn(PL_defgv))
1490 # define DEFSV_set(sv) \
1491 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1492 # define SAVE_DEFSV \
1494 save_gp(PL_defgv, 0), \
1495 GvINTRO_off(PL_defgv), \
1496 SAVEGENERICSV(GvSV(PL_defgv)), \
1497 GvSV(PL_defgv) = NULL \
1500 # define DEFSV GvSVn(PL_defgv)
1501 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1502 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1506 extern int errno; /* ANSI allows errno to be an lvalue expr.
1507 * For example in multithreaded environments
1508 * something like this might happen:
1509 * extern int *_errno(void);
1510 * #define errno (*_errno()) */
1513 #define UNKNOWN_ERRNO_MSG "(unknown)"
1516 #define Strerror(e) strerror((e), vaxc$errno)
1518 #define Strerror(e) strerror(e)
1523 # include <sys/ioctl.h>
1527 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1528 # ifdef HAS_SOCKETPAIR
1529 # undef HAS_SOCKETPAIR
1536 #ifndef HAS_SOCKETPAIR
1538 # define socketpair Perl_my_socketpair
1543 # define htoni htons
1544 # define ntohi ntohs
1546 # define htoni htonl
1547 # define ntohi ntohl
1550 /* Configure already sets Direntry_t */
1551 #if defined(I_DIRENT)
1552 # include <dirent.h>
1553 #elif defined(I_SYS_NDIR)
1554 # include <sys/ndir.h>
1555 #elif defined(I_SYS_DIR)
1556 # include <sys/dir.h>
1560 * The following gobbledygook brought to you on behalf of __STDC__.
1561 * (I could just use #ifndef __STDC__, but this is more bulletproof
1562 * in the face of half-implementations.)
1565 #if defined(I_SYSMODE)
1566 #include <sys/mode.h>
1571 # define S_IFMT _S_IFMT
1573 # define S_IFMT 0170000
1578 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1582 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1587 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1589 # define S_ISBLK(m) (0)
1594 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1599 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1601 # define S_ISFIFO(m) (0)
1607 # define S_ISLNK(m) _S_ISLNK(m)
1608 # elif defined(_S_IFLNK)
1609 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1610 # elif defined(S_IFLNK)
1611 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1613 # define S_ISLNK(m) (0)
1619 # define S_ISSOCK(m) _S_ISSOCK(m)
1620 # elif defined(_S_IFSOCK)
1621 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1622 # elif defined(S_IFSOCK)
1623 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1625 # define S_ISSOCK(m) (0)
1631 # define S_IRUSR S_IREAD
1632 # define S_IWUSR S_IWRITE
1633 # define S_IXUSR S_IEXEC
1635 # define S_IRUSR 0400
1636 # define S_IWUSR 0200
1637 # define S_IXUSR 0100
1643 # define S_IRGRP (S_IRUSR>>3)
1644 # define S_IWGRP (S_IWUSR>>3)
1645 # define S_IXGRP (S_IXUSR>>3)
1647 # define S_IRGRP 0040
1648 # define S_IWGRP 0020
1649 # define S_IXGRP 0010
1655 # define S_IROTH (S_IRUSR>>6)
1656 # define S_IWOTH (S_IWUSR>>6)
1657 # define S_IXOTH (S_IXUSR>>6)
1659 # define S_IROTH 0040
1660 # define S_IWOTH 0020
1661 # define S_IXOTH 0010
1666 # define S_ISUID 04000
1670 # define S_ISGID 02000
1674 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1678 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1682 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1685 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1686 * which would get included through <sys/file.h >, but that is 3000
1687 * lines in the future. --jhi */
1689 #if !defined(S_IREAD) && !defined(__HAIKU__)
1690 # define S_IREAD S_IRUSR
1693 #if !defined(S_IWRITE) && !defined(__HAIKU__)
1694 # define S_IWRITE S_IWUSR
1698 # define S_IEXEC S_IXUSR
1701 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1702 # define SLOPPYDIVIDE
1709 /* This used to be conditionally defined based on whether we had a sprintf()
1710 * that correctly returns the string length (as required by C89), but we no
1711 * longer need that. XS modules can (and do) use this name, so it must remain
1712 * a part of the API that's visible to modules.
1714 =head1 Miscellaneous Functions
1716 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1718 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1723 #define my_sprintf sprintf
1726 * If we have v?snprintf() and the C99 variadic macros, we can just
1727 * use just the v?snprintf(). It is nice to try to trap the buffer
1728 * overflow, however, so if we are DEBUGGING, and we cannot use the
1729 * gcc statement expressions, then use the function wrappers which try
1730 * to trap the overflow. If we can use the gcc statement expressions,
1731 * we can try that even with the version that uses the C99 variadic
1735 /* Note that we do not check against snprintf()/vsnprintf() returning
1736 * negative values because that is non-standard behaviour and we use
1737 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1738 * that should be true only if the snprintf()/vsnprintf() are true
1739 * to the standard. */
1741 #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
1744 # define my_snprintf Perl_my_snprintf
1745 # define PERL_MY_SNPRINTF_GUARDED
1746 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1747 # ifdef PERL_USE_GCC_BRACE_GROUPS
1748 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1749 # define PERL_MY_SNPRINTF_GUARDED
1751 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
1754 # define my_snprintf Perl_my_snprintf
1755 # define PERL_MY_SNPRINTF_GUARDED
1758 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1759 * dies if called under USE_QUADMATH. */
1760 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1761 # ifdef PERL_USE_GCC_BRACE_GROUPS
1762 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1763 # define PERL_MY_VSNPRINTF_GUARDED
1765 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
1768 # define my_vsnprintf Perl_my_vsnprintf
1769 # define PERL_MY_VSNPRINTF_GUARDED
1772 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1773 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1774 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1775 * completely ignore it: otherwise you cannot know whether your output
1778 * int len = my_sprintf(buf, max, ...);
1779 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1781 * The trick is that in certain platforms [a] the my_sprintf() already
1782 * contains the sanity check, while in certain platforms [b] it needs
1783 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1784 * platforms the POST_GUARD actually does nothing since the check has
1785 * already been done. Watch out for the max being the same in both calls.
1787 * If you actually use the snprintf/vsnprintf return value already,
1788 * you assumedly are checking its validity somehow. But you can
1789 * insert the POST_GUARD() also in that case. */
1791 #ifndef PERL_MY_SNPRINTF_GUARDED
1792 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1794 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1797 #ifndef PERL_MY_VSNPRINTF_GUARDED
1798 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1800 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1804 # define my_strlcat strlcat
1807 #if defined(PERL_CORE) || defined(PERL_EXT)
1809 # define my_memrchr memrchr
1811 # define my_memrchr S_my_memrchr
1816 # define my_strlcpy strlcpy
1820 # define my_strnlen strnlen
1824 The IV type is supposed to be long enough to hold any integral
1826 --Andy Dougherty August 1996
1832 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1833 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1834 # define IV_MAX ((IV)INT64_MAX)
1835 # define IV_MIN ((IV)INT64_MIN)
1836 # define UV_MAX ((UV)UINT64_MAX)
1838 # define UINT64_MIN 0
1840 # define UV_MIN ((UV)UINT64_MIN)
1842 # define IV_MAX PERL_QUAD_MAX
1843 # define IV_MIN PERL_QUAD_MIN
1844 # define UV_MAX PERL_UQUAD_MAX
1845 # define UV_MIN PERL_UQUAD_MIN
1850 # if defined(INT32_MAX) && IVSIZE == 4
1851 # define IV_MAX ((IV)INT32_MAX)
1852 # define IV_MIN ((IV)INT32_MIN)
1853 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1854 # define UV_MAX ((UV)UINT32_MAX)
1856 # define UV_MAX ((UV)4294967295U)
1859 # define UINT32_MIN 0
1861 # define UV_MIN ((UV)UINT32_MIN)
1863 # define IV_MAX PERL_LONG_MAX
1864 # define IV_MIN PERL_LONG_MIN
1865 # define UV_MAX PERL_ULONG_MAX
1866 # define UV_MIN PERL_ULONG_MIN
1877 #if !defined(PERL_CORE)
1878 /* We think that removing this decade-old undef this will cause too much
1879 breakage on CPAN for too little gain. (See RT #119753)
1880 However, we do need HAS_QUAD in the core for use by the drand48 code. */
1886 #define Size_t_MAX (~(Size_t)0)
1887 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
1889 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1890 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1892 #ifndef NO_PERL_PRESERVE_IVUV
1893 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
1897 * The macros INT2PTR and NUM2PTR are (despite their names)
1898 * bi-directional: they will convert int/float to or from pointers.
1899 * However the conversion to int/float are named explicitly:
1900 * PTR2IV, PTR2UV, PTR2NV.
1902 * For int conversions we do not need two casts if pointers are
1903 * the same size as IV and UV. Otherwise we need an explicit
1904 * cast (PTRV) to avoid compiler warnings.
1906 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1908 # define INT2PTR(any,d) (any)(d)
1909 #elif PTRSIZE == LONGSIZE
1910 # define PTRV unsigned long
1911 # define PTR2ul(p) (unsigned long)(p)
1913 # define PTRV unsigned
1917 # define INT2PTR(any,d) (any)(PTRV)(d)
1921 # define PTR2ul(p) INT2PTR(unsigned long,p)
1924 #define NUM2PTR(any,d) (any)(PTRV)(d)
1925 #define PTR2IV(p) INT2PTR(IV,p)
1926 #define PTR2UV(p) INT2PTR(UV,p)
1927 #define PTR2NV(p) NUM2PTR(NV,p)
1928 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
1930 /* According to strict ANSI C89 one cannot freely cast between
1931 * data pointers and function (code) pointers. There are at least
1932 * two ways around this. One (used below) is to do two casts,
1933 * first the other pointer to an (unsigned) integer, and then
1934 * the integer to the other pointer. The other way would be
1935 * to use unions to "overlay" the pointers. For an example of
1936 * the latter technique, see union dirpu in struct xpvio in sv.h.
1937 * The only feasible use is probably temporarily storing
1938 * function pointers in a data pointer (such as a void pointer). */
1940 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1941 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
1943 #ifdef USE_LONG_DOUBLE
1944 # if LONG_DOUBLESIZE == DOUBLESIZE
1945 # define LONG_DOUBLE_EQUALS_DOUBLE
1946 # undef USE_LONG_DOUBLE /* Ouch! */
1950 /* The following is all to get LDBL_DIG, in order to pick a nice
1951 default value for printing floating point numbers in Gconvert.
1954 #ifndef HAS_LDBL_DIG
1955 # if LONG_DOUBLESIZE == 10
1956 # define LDBL_DIG 18 /* assume IEEE */
1957 # elif LONG_DOUBLESIZE == 12
1958 # define LDBL_DIG 18 /* gcc? */
1959 # elif LONG_DOUBLESIZE == 16
1960 # define LDBL_DIG 33 /* assume IEEE */
1961 # elif LONG_DOUBLESIZE == DOUBLESIZE
1962 # define LDBL_DIG DBL_DIG /* bummer */
1969 # include <ieeefp.h>
1972 #if defined(__DECC) && defined(__osf__)
1973 /* Also Tru64 cc has broken NaN comparisons. */
1974 # define NAN_COMPARE_BROKEN
1977 # define NAN_COMPARE_BROKEN
1980 #ifdef USE_LONG_DOUBLE
1982 # include <sunmath.h>
1984 # if defined(LDBL_DIG)
1985 # define NV_DIG LDBL_DIG
1986 # ifdef LDBL_MANT_DIG
1987 # define NV_MANT_DIG LDBL_MANT_DIG
1990 # define NV_MIN LDBL_MIN
1993 # define NV_MAX LDBL_MAX
1995 # ifdef LDBL_MIN_EXP
1996 # define NV_MIN_EXP LDBL_MIN_EXP
1998 # ifdef LDBL_MAX_EXP
1999 # define NV_MAX_EXP LDBL_MAX_EXP
2001 # ifdef LDBL_MIN_10_EXP
2002 # define NV_MIN_10_EXP LDBL_MIN_10_EXP
2004 # ifdef LDBL_MAX_10_EXP
2005 # define NV_MAX_10_EXP LDBL_MAX_10_EXP
2007 # ifdef LDBL_EPSILON
2008 # define NV_EPSILON LDBL_EPSILON
2011 # define NV_MAX LDBL_MAX
2012 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
2013 # elif defined(HUGE_VALL)
2014 # define NV_MAX HUGE_VALL
2017 # if defined(HAS_SQRTL)
2018 # define Perl_acos acosl
2019 # define Perl_asin asinl
2020 # define Perl_atan atanl
2021 # define Perl_atan2 atan2l
2022 # define Perl_ceil ceill
2023 # define Perl_cos cosl
2024 # define Perl_cosh coshl
2025 # define Perl_exp expl
2026 /* no Perl_fabs, but there's PERL_ABS */
2027 # define Perl_floor floorl
2028 # define Perl_fmod fmodl
2029 # define Perl_log logl
2030 # define Perl_log10 log10l
2031 # define Perl_pow powl
2032 # define Perl_sin sinl
2033 # define Perl_sinh sinhl
2034 # define Perl_sqrt sqrtl
2035 # define Perl_tan tanl
2036 # define Perl_tanh tanhl
2038 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
2041 # define Perl_modf(x,y) modfl(x,y)
2042 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2043 prototype in <math.h> */
2044 # ifndef HAS_MODFL_PROTO
2045 EXTERN_C long double modfl(long double, long double *);
2047 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
2048 extern long double Perl_my_modfl(long double x, long double *ip);
2049 # define Perl_modf(x,y) Perl_my_modfl(x,y)
2054 # define Perl_frexp(x,y) frexpl(x,y)
2055 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
2056 extern long double Perl_my_frexpl(long double x, int *e);
2057 # define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2062 # define Perl_ldexp(x, y) ldexpl(x,y)
2063 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2064 # define Perl_ldexp(x,y) scalbnl(x,y)
2068 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
2069 # define Perl_isnan(x) isnanl(x)
2070 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2071 # define Perl_isnan(x) isnan(x)
2075 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
2076 # define Perl_isinf(x) isinfl(x)
2077 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2078 # define Perl_isinf(x) isinf(x)
2079 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2080 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
2083 # ifndef Perl_isfinite
2084 # define Perl_isfinite(x) Perl_isfinitel(x)
2086 #elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2087 # include <quadmath.h>
2088 # define NV_DIG FLT128_DIG
2089 # define NV_MANT_DIG FLT128_MANT_DIG
2090 # define NV_MIN FLT128_MIN
2091 # define NV_MAX FLT128_MAX
2092 # define NV_MIN_EXP FLT128_MIN_EXP
2093 # define NV_MAX_EXP FLT128_MAX_EXP
2094 # define NV_EPSILON FLT128_EPSILON
2095 # define NV_MIN_10_EXP FLT128_MIN_10_EXP
2096 # define NV_MAX_10_EXP FLT128_MAX_10_EXP
2097 # define Perl_acos acosq
2098 # define Perl_asin asinq
2099 # define Perl_atan atanq
2100 # define Perl_atan2 atan2q
2101 # define Perl_ceil ceilq
2102 # define Perl_cos cosq
2103 # define Perl_cosh coshq
2104 # define Perl_exp expq
2105 /* no Perl_fabs, but there's PERL_ABS */
2106 # define Perl_floor floorq
2107 # define Perl_fmod fmodq
2108 # define Perl_log logq
2109 # define Perl_log10 log10q
2110 # define Perl_signbit signbitq
2111 # define Perl_pow powq
2112 # define Perl_sin sinq
2113 # define Perl_sinh sinhq
2114 # define Perl_sqrt sqrtq
2115 # define Perl_tan tanq
2116 # define Perl_tanh tanhq
2117 # define Perl_modf(x,y) modfq(x,y)
2118 # define Perl_frexp(x,y) frexpq(x,y)
2119 # define Perl_ldexp(x, y) ldexpq(x,y)
2120 # define Perl_isinf(x) isinfq(x)
2121 # define Perl_isnan(x) isnanq(x)
2122 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
2123 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2124 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2125 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2126 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2127 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2128 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
2130 # define NV_DIG DBL_DIG
2131 # define NV_MANT_DIG DBL_MANT_DIG
2132 # define NV_MIN DBL_MIN
2133 # define NV_MAX DBL_MAX
2134 # define NV_MIN_EXP DBL_MIN_EXP
2135 # define NV_MAX_EXP DBL_MAX_EXP
2136 # define NV_MIN_10_EXP DBL_MIN_10_EXP
2137 # define NV_MAX_10_EXP DBL_MAX_10_EXP
2138 # define NV_EPSILON DBL_EPSILON
2139 # define NV_MAX DBL_MAX
2140 # define NV_MIN DBL_MIN
2142 /* These math interfaces are C89. */
2143 # define Perl_acos acos
2144 # define Perl_asin asin
2145 # define Perl_atan atan
2146 # define Perl_atan2 atan2
2147 # define Perl_ceil ceil
2148 # define Perl_cos cos
2149 # define Perl_cosh cosh
2150 # define Perl_exp exp
2151 /* no Perl_fabs, but there's PERL_ABS */
2152 # define Perl_floor floor
2153 # define Perl_fmod fmod
2154 # define Perl_log log
2155 # define Perl_log10 log10
2156 # define Perl_pow pow
2157 # define Perl_sin sin
2158 # define Perl_sinh sinh
2159 # define Perl_sqrt sqrt
2160 # define Perl_tan tan
2161 # define Perl_tanh tanh
2163 # define Perl_modf(x,y) modf(x,y)
2164 # define Perl_frexp(x,y) frexp(x,y)
2165 # define Perl_ldexp(x,y) ldexp(x,y)
2169 # define Perl_isnan(x) isnan(x)
2173 # if defined(HAS_ISINF)
2174 # define Perl_isinf(x) isinf(x)
2175 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
2176 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
2179 # ifndef Perl_isfinite
2180 # ifdef HAS_ISFINITE
2181 # define Perl_isfinite(x) isfinite(x)
2182 # elif defined(HAS_FINITE)
2183 # define Perl_isfinite(x) finite(x)
2188 /* fpclassify(): C99. It is supposed to be a macro that switches on
2189 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2190 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2192 # if defined(FP_INFINITE) && defined(FP_NAN)
2193 # define Perl_fp_class(x) fpclassify(x)
2194 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2195 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2196 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2197 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2198 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2199 # elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2200 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2201 * actually not the C99 fpclassify, with its own set of return defines. */
2202 # define Perl_fp_class(x) fpclassify(x)
2203 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2204 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2205 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2206 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2207 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2208 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2209 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2210 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2211 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2212 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2214 # undef Perl_fp_class /* Unknown set of defines */
2218 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2219 * are identical to the C99 fpclassify(). */
2220 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2223 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2225 /* oh, and the isnormal macro has a typo in it! */
2227 # define isnormal(x) Perl_fp_class_norm(x)
2229 # if defined(FP_INFINITE) && defined(FP_NAN)
2230 # define Perl_fp_class(x) fp_classify(x)
2231 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2232 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2233 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2234 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2235 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2237 # undef Perl_fp_class /* Unknown set of defines */
2241 /* Feel free to check with me for the SGI manpages, SGI testing,
2242 * etcetera, if you want to try getting this to work with IRIX.
2244 * - Allen <allens@cpan.org> */
2246 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */
2247 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2248 /* Solaris and IRIX have fpclass/fpclassl, but they are using
2249 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2250 * Define some symbols also as cpp symbols so we can detect them. */
2251 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
2252 # define FP_PINF FP_PINF
2253 # define FP_QNAN FP_QNAN
2257 # include <ieeefp.h>
2262 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2263 # define Perl_fp_class(x) fpclassl(x)
2265 # define Perl_fp_class(x) fpclass(x)
2267 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
2268 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2269 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2270 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2271 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2272 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2273 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2274 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2275 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2276 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2277 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2278 # elif defined(FP_PINF) && defined(FP_QNAN)
2279 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2280 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2281 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2282 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2283 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2284 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2285 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2286 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2287 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2288 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
2290 # undef Perl_fp_class /* Unknown set of defines */
2294 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2295 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
2297 # if !defined(FP_SNAN) && defined(I_FP_CLASS)
2298 # include <fp_class.h>
2300 # if defined(FP_POS_INF) && defined(FP_QNAN)
2301 # ifdef __sgi /* XXX Configure test instead */
2302 # ifdef USE_LONG_DOUBLE
2303 # define Perl_fp_class(x) fp_class_l(x)
2305 # define Perl_fp_class(x) fp_class_d(x)
2308 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2309 # define Perl_fp_class(x) fp_classl(x)
2311 # define Perl_fp_class(x) fp_class(x)
2314 # if defined(FP_POS_INF) && defined(FP_QNAN)
2315 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2316 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2317 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2318 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2319 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2320 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2321 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2322 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2323 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2324 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
2326 # undef Perl_fp_class /* Unknown set of defines */
2331 /* class(), _class(): Legacy: AIX. */
2332 #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2334 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2336 # define Perl_fp_class(x) class(x)
2338 # define Perl_fp_class(x) _class(x)
2340 # if defined(FP_PLUS_INF) && defined(FP_NANQ)
2341 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2342 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2343 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2344 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2345 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2346 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2347 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2348 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2349 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2350 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2352 # undef Perl_fp_class /* Unknown set of defines */
2357 /* Win32: _fpclass(), _isnan(), _finite(). */
2360 # define Perl_isnan(x) _isnan(x)
2362 # ifndef Perl_isfinite
2363 # define Perl_isfinite(x) _finite(x)
2365 # ifndef Perl_fp_class_snan
2366 /* No simple way to #define Perl_fp_class because _fpclass()
2367 * returns a set of bits. */
2368 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2369 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
2370 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
2371 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2372 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2373 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2374 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2375 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2376 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2377 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2378 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2379 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2380 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2381 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2382 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2386 #if !defined(Perl_fp_class_inf) && \
2387 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2388 # define Perl_fp_class_inf(x) \
2389 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2392 #if !defined(Perl_fp_class_nan) && \
2393 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2394 # define Perl_fp_class_nan(x) \
2395 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2398 #if !defined(Perl_fp_class_zero) && \
2399 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2400 # define Perl_fp_class_zero(x) \
2401 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2404 #if !defined(Perl_fp_class_norm) && \
2405 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2406 # define Perl_fp_class_norm(x) \
2407 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2410 #if !defined(Perl_fp_class_denorm) && \
2411 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2412 # define Perl_fp_class_denorm(x) \
2413 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
2417 # ifdef Perl_fp_class_nan
2418 # define Perl_isnan(x) Perl_fp_class_nan(x)
2419 # elif defined(HAS_UNORDERED)
2420 # define Perl_isnan(x) unordered((x), 0.0)
2422 # define Perl_isnan(x) ((x)!=(x))
2427 # ifdef Perl_fp_class_inf
2428 # define Perl_isinf(x) Perl_fp_class_inf(x)
2432 #ifndef Perl_isfinite
2433 # if defined(HAS_ISFINITE) && !defined(isfinite)
2434 # define Perl_isfinite(x) isfinite((double)(x))
2435 # elif defined(HAS_FINITE)
2436 # define Perl_isfinite(x) finite((double)(x))
2437 # elif defined(Perl_fp_class_finite)
2438 # define Perl_isfinite(x) Perl_fp_class_finite(x)
2440 /* For the infinities the multiplication returns nan,
2441 * for the nan the multiplication also returns nan,
2442 * for everything else (that is, finite) zero should be returned. */
2443 # define Perl_isfinite(x) (((x) * 0) == 0)
2448 # if defined(Perl_isfinite) && defined(Perl_isnan)
2449 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2453 /* We need Perl_isfinitel (ends with ell) (if available) even when
2454 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2456 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2457 /* If isfinite() is a macro and looks like we have C99,
2458 * we assume it's the type-aware C99 isfinite(). */
2459 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
2460 # define Perl_isfinitel(x) isfinite(x)
2461 # elif defined(HAS_ISFINITEL)
2462 # define Perl_isfinitel(x) isfinitel(x)
2463 # elif defined(HAS_FINITEL)
2464 # define Perl_isfinitel(x) finitel(x)
2465 # elif defined(HAS_INFL) && defined(HAS_NANL)
2466 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
2468 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
2472 /* The default is to use Perl's own atof() implementation (in numeric.c).
2473 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2474 * it is however best to use the native implementation of atof.
2475 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2476 * Some good tests to try out with either setting are t/base/num.t,
2477 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2478 * you may need to be using a different function than atof! */
2480 #ifndef USE_PERL_ATOF
2482 # define USE_PERL_ATOF
2485 # if USE_PERL_ATOF == 0
2486 # undef USE_PERL_ATOF
2490 #ifdef USE_PERL_ATOF
2491 # define Perl_atof(s) Perl_my_atof(s)
2492 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
2494 # define Perl_atof(s) (NV)atof(s)
2495 # define Perl_atof2(s, n) ((n) = atof(s))
2497 #define my_atof2(a,b) my_atof3(a,b,0)
2500 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2501 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2502 * depending on local options. Until Configure detects this (or at least
2503 * detects whether the "signed" keyword is available) the CHAR ranges
2504 * will not be included. UCHAR functions normally.
2508 #define PERL_UCHAR_MIN ((unsigned char)0)
2509 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2511 #define PERL_USHORT_MIN ((unsigned short)0)
2512 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2514 #define PERL_SHORT_MAX ((short)SHRT_MAX)
2515 #define PERL_SHORT_MIN ((short)SHRT_MIN)
2517 #define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2518 #define PERL_UINT_MIN ((unsigned int)0)
2520 #define PERL_INT_MAX ((int)INT_MAX)
2521 #define PERL_INT_MIN ((int)INT_MIN)
2523 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2524 #define PERL_ULONG_MIN ((unsigned long)0L)
2526 #define PERL_LONG_MAX ((long)LONG_MAX)
2527 #define PERL_LONG_MIN ((long)LONG_MIN)
2530 # define PERL_UQUAD_MAX (~(UV)0)
2531 # define PERL_UQUAD_MIN ((UV)0)
2532 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
2533 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
2537 =head1 Numeric functions
2539 =for apidoc AmnUh||PERL_INT_MIN
2540 =for apidoc AmnUh||PERL_LONG_MAX
2541 =for apidoc AmnUh||PERL_LONG_MIN
2542 =for apidoc AmnUh||PERL_QUAD_MAX
2543 =for apidoc AmnUh||PERL_SHORT_MAX
2544 =for apidoc AmnUh||PERL_SHORT_MIN
2545 =for apidoc AmnUh||PERL_UCHAR_MAX
2546 =for apidoc AmnUh||PERL_UCHAR_MIN
2547 =for apidoc AmnUh||PERL_UINT_MAX
2548 =for apidoc AmnUh||PERL_ULONG_MAX
2549 =for apidoc AmnUh||PERL_ULONG_MIN
2550 =for apidoc AmnUh||PERL_UQUAD_MAX
2551 =for apidoc AmnUh||PERL_UQUAD_MIN
2552 =for apidoc AmnUh||PERL_USHORT_MAX
2553 =for apidoc AmnUh||PERL_USHORT_MIN
2554 =for apidoc AmnUh||PERL_QUAD_MIN
2555 =for apidoc AmnU||PERL_INT_MAX
2573 give the largest and smallest number representable in the current
2574 platform in variables of the corresponding types.
2576 For signed types, the smallest representable number is the most negative
2577 number, the one furthest away from zero.
2579 For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2580 are available to the C code. But these constants, furnished by Perl,
2581 allow code compiled on earlier compilers to portably have access to the same
2588 typedef MEM_SIZE STRLEN;
2590 typedef struct op OP;
2591 typedef struct cop COP;
2592 typedef struct unop UNOP;
2593 typedef struct unop_aux UNOP_AUX;
2594 typedef struct binop BINOP;
2595 typedef struct listop LISTOP;
2596 typedef struct logop LOGOP;
2597 typedef struct pmop PMOP;
2598 typedef struct svop SVOP;
2599 typedef struct padop PADOP;
2600 typedef struct pvop PVOP;
2601 typedef struct loop LOOP;
2602 typedef struct methop METHOP;
2605 typedef struct opslab OPSLAB;
2606 typedef struct opslot OPSLOT;
2609 typedef struct block_hooks BHK;
2610 typedef struct custom_op XOP;
2612 typedef struct interpreter PerlInterpreter;
2614 /* SGI's <sys/sema.h> has struct sv */
2616 # define STRUCT_SV perl_sv
2618 # define STRUCT_SV sv
2620 typedef struct STRUCT_SV SV;
2621 typedef struct av AV;
2622 typedef struct hv HV;
2623 typedef struct cv CV;
2624 typedef struct p5rx REGEXP;
2625 typedef struct gp GP;
2626 typedef struct gv GV;
2627 typedef struct io IO;
2628 typedef struct context PERL_CONTEXT;
2629 typedef struct block BLOCK;
2631 typedef struct magic MAGIC;
2632 typedef struct xpv XPV;
2633 typedef struct xpviv XPVIV;
2634 typedef struct xpvuv XPVUV;
2635 typedef struct xpvnv XPVNV;
2636 typedef struct xpvmg XPVMG;
2637 typedef struct xpvlv XPVLV;
2638 typedef struct xpvinvlist XINVLIST;
2639 typedef struct xpvav XPVAV;
2640 typedef struct xpvhv XPVHV;
2641 typedef struct xpvgv XPVGV;
2642 typedef struct xpvcv XPVCV;
2643 typedef struct xpvbm XPVBM;
2644 typedef struct xpvfm XPVFM;
2645 typedef struct xpvio XPVIO;
2646 typedef struct mgvtbl MGVTBL;
2647 typedef union any ANY;
2648 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2649 typedef struct ptr_tbl PTR_TBL_t;
2650 typedef struct clone_params CLONE_PARAMS;
2652 /* a pad is currently just an AV; but that might change,
2653 * so hide the type. */
2654 typedef struct padlist PADLIST;
2656 typedef struct padnamelist PADNAMELIST;
2657 typedef struct padname PADNAME;
2659 /* always enable PERL_OP_PARENT */
2660 #if !defined(PERL_OP_PARENT)
2661 # define PERL_OP_PARENT
2664 /* enable PERL_COPY_ON_WRITE by default */
2665 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2666 # define PERL_COPY_ON_WRITE
2669 #ifdef PERL_COPY_ON_WRITE
2670 # define PERL_ANY_COW
2672 # define PERL_SAWAMPERSAND
2675 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2676 # error PERL_DEBUG_READONLY_OPS only works with ithreads
2680 #include "charclass_invlists.h"
2682 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2683 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2684 # define USE_64_BIT_RAWIO /* implicit */
2688 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2689 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2690 * however, because operating systems like to do that themself. */
2693 # define FSEEKSIZE LSEEKSIZE
2695 # define FSEEKSIZE LONGSIZE
2699 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2700 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2701 # define USE_64_BIT_STDIO /* implicit */
2705 #ifdef USE_64_BIT_RAWIO
2708 # define Off_t off64_t
2710 # define LSEEKSIZE 8
2712 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2713 * will trigger defines like the ones below. Some 64-bit environments,
2714 * however, do not. Therefore we have to explicitly mix and match. */
2715 # if defined(USE_OPEN64)
2716 # define open open64
2718 # if defined(USE_LSEEK64)
2719 # define lseek lseek64
2721 # if defined(USE_LLSEEK)
2722 # define lseek llseek
2725 # if defined(USE_STAT64)
2726 # define stat stat64
2728 # if defined(USE_FSTAT64)
2729 # define fstat fstat64
2731 # if defined(USE_LSTAT64)
2732 # define lstat lstat64
2734 # if defined(USE_FLOCK64)
2735 # define flock flock64
2737 # if defined(USE_LOCKF64)
2738 # define lockf lockf64
2740 # if defined(USE_FCNTL64)
2741 # define fcntl fcntl64
2743 # if defined(USE_TRUNCATE64)
2744 # define truncate truncate64
2746 # if defined(USE_FTRUNCATE64)
2747 # define ftruncate ftruncate64
2751 #ifdef USE_64_BIT_STDIO
2752 # ifdef HAS_FPOS64_T
2754 # define Fpos_t fpos64_t
2756 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2757 * will trigger defines like the ones below. Some 64-bit environments,
2758 * however, do not. */
2759 # if defined(USE_FOPEN64)
2760 # define fopen fopen64
2762 # if defined(USE_FSEEK64)
2763 # define fseek fseek64 /* don't do fseeko here, see perlio.c */
2765 # if defined(USE_FTELL64)
2766 # define ftell ftell64 /* don't do ftello here, see perlio.c */
2768 # if defined(USE_FSETPOS64)
2769 # define fsetpos fsetpos64
2771 # if defined(USE_FGETPOS64)
2772 # define fgetpos fgetpos64
2774 # if defined(USE_TMPFILE64)
2775 # define tmpfile tmpfile64
2777 # if defined(USE_FREOPEN64)
2778 # define freopen freopen64
2783 # include "iperlsys.h"
2788 # include "os2ish.h"
2790 # include "dosish.h"
2793 # include "vmsish.h"
2794 #elif defined(PLAN9)
2795 # include "./plan9/plan9ish.h"
2796 #elif defined(__VOS__)
2798 # include "./vos/vosish.h"
2800 # include "vos/vosish.h"
2802 #elif defined(__HAIKU__)
2803 # include "haiku/haikuish.h"
2805 # include "unixish.h"
2809 # include "amigaos.h"
2810 # undef FD_CLOEXEC /* a lie in AmigaOS */
2813 /* NSIG logic from Configure --> */
2816 # define NSIG (_NSIG)
2817 # elif defined(SIGMAX)
2818 # define NSIG (SIGMAX+1)
2819 # elif defined(SIG_MAX)
2820 # define NSIG (SIG_MAX+1)
2821 # elif defined(_SIG_MAX)
2822 # define NSIG (_SIG_MAX+1)
2823 # elif defined(MAXSIG)
2824 # define NSIG (MAXSIG+1)
2825 # elif defined(MAX_SIG)
2826 # define NSIG (MAX_SIG+1)
2827 # elif defined(SIGARRAYSIZE)
2828 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2829 # elif defined(_sys_nsig)
2830 # define NSIG (_sys_nsig) /* Solaris 2.5 */
2832 /* Default to some arbitrary number that's big enough to get most
2833 * of the common signals. */
2837 /* <-- NSIG logic from Configure */
2839 #ifndef NO_ENVIRON_ARRAY
2840 # define USE_ENVIRON_ARRAY
2844 /* On some platforms it would be safe to use a read/write mutex with many
2845 * readers possible at the same time. On other platforms, notably IBM ones,
2846 * subsequent getenv calls destroy earlier ones. Those platforms would not
2847 * be able to handle simultaneous getenv calls */
2848 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
2849 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
2850 # define ENV_INIT MUTEX_INIT(&PL_env_mutex);
2851 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
2853 # define ENV_LOCK NOOP;
2854 # define ENV_UNLOCK NOOP;
2855 # define ENV_INIT NOOP;
2856 # define ENV_TERM NOOP;
2859 /* Some critical sections need to lock both the locale and the environment.
2860 * XXX khw intends to change this to lock both mutexes, but that brings up
2861 * issues of potential deadlock, so should be done at the beginning of a
2862 * development cycle. So for now, it just locks the environment. Note that
2863 * many modern platforms are locale-thread-safe anyway, so locking the locale
2864 * mutex is a no-op anyway */
2865 #define ENV_LOCALE_LOCK ENV_LOCK
2866 #define ENV_LOCALE_UNLOCK ENV_UNLOCK
2868 /* And some critical sections care only that no one else is writing either the
2869 * locale nor the environment. XXX Again this is for the future. This can be
2870 * simulated with using COND_WAIT in thread.h */
2871 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
2872 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
2874 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2875 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
2876 * signal handlers. But the perl core itself only fully supports 1-arg
2877 * handlers, so don't enable for now.
2878 * NB: POSIX::sigaction() supports both.
2880 * # define PERL_USE_3ARG_SIGHANDLER
2885 * This is an alias for the OS's siginfo_t, except that where the OS
2886 * doesn't support it, declare a dummy version instead. This allows us to
2887 * have signal handler functions which always have a Siginfo_t parameter
2888 * regardless of platform, (and which will just be passed a NULL value
2889 * where the OS doesn't support HAS_SIGACTION).
2892 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
2893 typedef siginfo_t Siginfo_t;
2895 #ifdef si_signo /* minix */
2905 * initialise to avoid floating-point exceptions from overflow, etc
2907 #ifndef PERL_FPU_INIT
2908 # ifdef HAS_FPSETMASK
2909 # if HAS_FLOATINGPOINT_H
2910 # include <floatingpoint.h>
2912 /* Some operating systems have this as a macro, which in turn expands to a comma
2913 expression, and the last sub-expression is something that gets calculated,
2914 and then they have the gall to warn that a value computed is not used. Hence
2916 # define PERL_FPU_INIT (void)fpsetmask(0)
2917 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2918 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2919 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2920 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
2922 # define PERL_FPU_INIT
2925 #ifndef PERL_FPU_PRE_EXEC
2926 # define PERL_FPU_PRE_EXEC {
2927 # define PERL_FPU_POST_EXEC }
2930 /* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2931 * We need to reenable the "invalid" trap because otherwise generation
2932 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2933 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2935 # include <machine/fpu.h>
2936 # define PERL_SYS_FPU_INIT \
2938 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2939 signal(SIGFPE, SIG_IGN); \
2942 /* In IRIX the default for Flush to Zero bit is true,
2943 * which means that results going below the minimum of normal
2944 * floating points go to zero, instead of going denormal/subnormal.
2945 * This is unlike almost any other system running Perl, so let's clear it.
2946 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2947 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2949 * XXX The flush-to-zero behaviour should be a Configure scan.
2950 * To change the behaviour usually requires some system-specific
2951 * incantation, though, like the below. */
2953 # include <sys/fpu.h>
2954 # define PERL_SYS_FPU_INIT \
2956 union fpc_csr csr; \
2957 csr.fc_word = get_fpc_csr(); \
2958 csr.fc_struct.flush = 0; \
2959 set_fpc_csr(csr.fc_word); \
2963 #ifndef PERL_SYS_FPU_INIT
2964 # define PERL_SYS_FPU_INIT NOOP
2967 #ifndef PERL_SYS_INIT3_BODY
2968 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2972 =head1 Miscellaneous Functions
2974 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
2975 Provides system-specific tune up of the C runtime environment necessary to
2976 run Perl interpreters. This should be called only once, before creating
2977 any Perl interpreters.
2979 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
2980 Provides system-specific tune up of the C runtime environment necessary to
2981 run Perl interpreters. This should be called only once, before creating
2982 any Perl interpreters.
2984 =for apidoc Am|void|PERL_SYS_TERM|
2985 Provides system-specific clean up of the C runtime environment after
2986 running Perl interpreters. This should be called only once, after
2987 freeing any remaining Perl interpreters.
2992 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2993 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
2994 #define PERL_SYS_TERM() Perl_sys_term()
2996 #ifndef PERL_WRITE_MSG_TO_CONSOLE
2997 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3002 # ifdef _POSIX_PATH_MAX
3003 # if PATH_MAX > _POSIX_PATH_MAX
3004 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3005 * included the null byte or not. Later amendments of POSIX,
3006 * XPG4, the Austin Group, and the Single UNIX Specification
3007 * all explicitly include the null byte in the PATH_MAX.
3008 * Ditto for _POSIX_PATH_MAX. */
3009 # define MAXPATHLEN PATH_MAX
3011 # define MAXPATHLEN _POSIX_PATH_MAX
3014 # define MAXPATHLEN (PATH_MAX+1)
3017 # define MAXPATHLEN 1024 /* Err on the large side. */
3021 /* clang Thread Safety Analysis/Annotations/Attributes
3022 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3024 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3025 * Apple XCode hijacks __clang_major__ and __clang_minor__
3026 * (6.1 means really clang 3.6), so needs extra hijinks
3027 * (could probably also test the contents of __apple_build_version__).
3029 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3030 defined(__clang__) && \
3032 ((!defined(__apple_build_version__) && \
3033 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
3034 (__clang_major__ >= 4))) || \
3035 (defined(__apple_build_version__) && \
3036 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3037 (__clang_major__ >= 7))))
3038 # define PERL_TSA__(x) __attribute__((x))
3039 # define PERL_TSA_ACTIVE
3041 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3042 # undef PERL_TSA_ACTIVE
3045 /* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3046 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3048 #define PERL_TSA_CAPABILITY(x) \
3049 PERL_TSA__(capability(x))
3051 /* In the below examples the mutex must be lexically visible, usually
3052 * either as global variables, or as function arguments. */
3054 /* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3056 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3058 #define PERL_TSA_GUARDED_BY(x) \
3059 PERL_TSA__(guarded_by(x))
3061 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3062 * The data _behind_ the pointer is guarded.
3064 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3066 #define PERL_TSA_PT_GUARDED_BY(x) \
3067 PERL_TSA__(pt_guarded_by(x))
3069 /* PERL_TSA_REQUIRES() is used to annotate functions.
3070 * The caller MUST hold the resource when calling the function.
3072 * void Foo() PERL_TSA_REQUIRES(mutex);
3074 #define PERL_TSA_REQUIRES(x) \
3075 PERL_TSA__(requires_capability(x))
3077 /* PERL_TSA_EXCLUDES() is used to annotate functions.
3078 * The caller MUST NOT hold resource when calling the function.
3080 * EXCLUDES should be used when the function first acquires
3081 * the resource and then releases it. Use to avoid deadlock.
3083 * void Foo() PERL_TSA_EXCLUDES(mutex);
3085 #define PERL_TSA_EXCLUDES(x) \
3086 PERL_TSA__(locks_excluded(x))
3088 /* PERL_TSA_ACQUIRE() is used to annotate functions.
3089 * The caller MUST NOT hold the resource when calling the function,
3090 * and the function will acquire the resource.
3092 * void Foo() PERL_TSA_ACQUIRE(mutex);
3094 #define PERL_TSA_ACQUIRE(x) \
3095 PERL_TSA__(acquire_capability(x))
3097 /* PERL_TSA_RELEASE() is used to annotate functions.
3098 * The caller MUST hold the resource when calling the function,
3099 * and the function will release the resource.
3101 * void Foo() PERL_TSA_RELEASE(mutex);
3103 #define PERL_TSA_RELEASE(x) \
3104 PERL_TSA__(release_capability(x))
3106 /* PERL_TSA_NO_TSA is used to annotate functions.
3107 * Used when being intentionally unsafe, or when the code is too
3108 * complicated for the analysis. Use sparingly.
3110 * void Foo() PERL_TSA_NO_TSA;
3112 #define PERL_TSA_NO_TSA \
3113 PERL_TSA__(no_thread_safety_analysis)
3115 /* There are more annotations/attributes available, see the clang
3116 * documentation for details. */
3118 #if defined(USE_ITHREADS)
3120 # include <nw5thread.h>
3121 # elif defined(WIN32)
3122 # include <win32thread.h>
3124 # include "os2thread.h"
3125 # elif defined(I_MACH_CTHREADS)
3126 # include <mach/cthreads.h>
3127 typedef cthread_t perl_os_thread;
3128 typedef mutex_t perl_mutex;
3129 typedef condition_t perl_cond;
3130 typedef void * perl_key;
3131 # elif defined(I_PTHREAD) /* Posix threads */
3132 # include <pthread.h>
3133 typedef pthread_t perl_os_thread;
3134 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
3135 typedef pthread_cond_t perl_cond;
3136 typedef pthread_key_t perl_key;
3138 #endif /* USE_ITHREADS */
3140 #ifdef PERL_TSA_ACTIVE
3141 /* Since most pthread mutex interfaces have not been annotated, we
3142 * need to have these wrappers. The NO_TSA annotation is quite ugly
3143 * but it cannot be avoided in plain C, unlike in C++, where one could
3144 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3146 * The bodies of these wrappers are in util.c
3148 * TODO: however, some platforms are starting to get these clang
3149 * thread safety annotations for pthreads, for example FreeBSD.
3150 * Do we need a way to a bypass these wrappers? */
3151 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3152 PERL_TSA_ACQUIRE(*mutex)
3154 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3155 PERL_TSA_RELEASE(*mutex)
3164 # include "netware.h"
3167 #define STATUS_UNIX PL_statusvalue
3169 # define STATUS_NATIVE PL_statusvalue_vms
3171 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
3172 * its contents can not be trusted. Unfortunately, Perl seems to check
3173 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3176 # include <stsdef.h>
3178 /* Presume this because if VMS changes it, it will require a new
3179 * set of APIs for waiting on children for binary compatibility.
3181 # define child_offset_bits (8)
3182 # ifndef C_FAC_POSIX
3183 # define C_FAC_POSIX 0x35A000
3186 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3187 * platform from the existing UNIX or Native status values.
3190 # define STATUS_EXIT \
3191 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3192 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3195 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3196 * exit code and shifts the UNIX value over the correct number of bits to
3197 * be a child status. Usually the number of bits is 8, but that could be
3198 * platform dependent. The NATIVE status code is presumed to have either
3199 * from a child process.
3202 /* This is complicated. The child processes return a true native VMS
3203 status which must be saved. But there is an assumption in Perl that
3204 the UNIX child status has some relationship to errno values, so
3205 Perl tries to translate it to text in some of the tests.
3206 In order to get the string translation correct, for the error, errno
3207 must be EVMSERR, but that generates a different text message
3208 than what the test programs are expecting. So an errno value must
3209 be derived from the native status value when an error occurs.
3210 That will hide the true native status message. With this version of
3211 perl, the true native child status can always be retrieved so that
3212 is not a problem. But in this case, Pl_statusvalue and errno may
3213 have different values in them.
3216 # define STATUS_NATIVE_CHILD_SET(n) \
3218 I32 evalue = (I32)n; \
3219 if (evalue == EVMSERR) { \
3220 PL_statusvalue_vms = vaxc$errno; \
3221 PL_statusvalue = evalue; \
3223 PL_statusvalue_vms = evalue; \
3224 if (evalue == -1) { \
3225 PL_statusvalue = -1; \
3226 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3228 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
3229 set_vaxc_errno(evalue); \
3230 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3231 set_errno(EVMSERR); \
3232 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3233 PL_statusvalue = PL_statusvalue << child_offset_bits; \
3237 # ifdef VMSISH_STATUS
3238 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
3240 # define STATUS_CURRENT STATUS_UNIX
3243 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3244 * the NATIVE status to an equivalent value. Can not be used to translate
3245 * exit code values as exit code values are not guaranteed to have any
3246 * relationship at all to errno values.
3247 * This is used when Perl is forcing errno to have a specific value.
3249 # define STATUS_UNIX_SET(n) \
3251 I32 evalue = (I32)n; \
3252 PL_statusvalue = evalue; \
3253 if (PL_statusvalue != -1) { \
3254 if (PL_statusvalue != EVMSERR) { \
3255 PL_statusvalue &= 0xFFFF; \
3256 if (MY_POSIX_EXIT) \
3257 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3258 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3261 PL_statusvalue_vms = vaxc$errno; \
3264 else PL_statusvalue_vms = SS$_ABORT; \
3265 set_vaxc_errno(PL_statusvalue_vms); \
3268 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
3269 * the NATIVE error status based on it.
3271 * When in the default mode to comply with the Perl VMS documentation,
3272 * 0 is a success and any other code sets the NATIVE status to a failure
3273 * code of SS$_ABORT.
3275 * In the new POSIX EXIT mode, native status will be set so that the
3276 * actual exit code will can be retrieved by the calling program or
3279 * If the exit code is not clearly a UNIX parent or child exit status,
3280 * it will be passed through as a VMS status.
3283 # define STATUS_UNIX_EXIT_SET(n) \
3285 I32 evalue = (I32)n; \
3286 PL_statusvalue = evalue; \
3287 if (MY_POSIX_EXIT) { \
3288 if (evalue <= 0xFF00) { \
3289 if (evalue > 0xFF) \
3290 evalue = (evalue >> child_offset_bits) & 0xFF; \
3291 PL_statusvalue_vms = \
3292 (C_FAC_POSIX | (evalue << 3 ) | \
3293 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3294 } else /* forgive them Perl, for they have sinned */ \
3295 PL_statusvalue_vms = evalue; \
3298 PL_statusvalue_vms = SS$_NORMAL; \
3299 else if (evalue <= 0xFF00) \
3300 PL_statusvalue_vms = SS$_ABORT; \
3301 else { /* forgive them Perl, for they have sinned */ \
3302 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3303 else PL_statusvalue_vms = vaxc$errno; \
3304 /* And obviously used a VMS status value instead of UNIX */ \
3305 PL_statusvalue = EVMSERR; \
3307 set_vaxc_errno(PL_statusvalue_vms); \
3312 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3313 * and sets the NATIVE error status based on it. This special case
3314 * is needed to maintain compatibility with past VMS behavior.
3316 * In the default mode on VMS, this number is passed through as
3317 * both the NATIVE and UNIX status. Which makes it different
3318 * that the STATUS_UNIX_EXIT_SET.
3320 * In the new POSIX EXIT mode, native status will be set so that the
3321 * actual exit code will can be retrieved by the calling program or
3324 * A POSIX exit code is from 0 to 255. If the exit code is higher
3325 * than this, it needs to be assumed that it is a VMS exit code and
3329 # define STATUS_EXIT_SET(n) \
3331 I32 evalue = (I32)n; \
3332 PL_statusvalue = evalue; \
3333 if (MY_POSIX_EXIT) \
3334 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3335 PL_statusvalue_vms = \
3336 (C_FAC_POSIX | (evalue << 3 ) | \
3337 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
3339 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3340 set_vaxc_errno(PL_statusvalue_vms); \
3344 /* This macro forces a success status */
3345 # define STATUS_ALL_SUCCESS \
3346 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
3348 /* This macro forces a failure status */
3349 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3350 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3351 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
3353 #elif defined(__amigaos4__)
3354 /* A somewhat experimental attempt to simulate posix return code values */
3355 # define STATUS_NATIVE PL_statusvalue_posix
3356 # define STATUS_NATIVE_CHILD_SET(n) \
3358 PL_statusvalue_posix = (n); \
3359 if (PL_statusvalue_posix < 0) { \
3360 PL_statusvalue = -1; \
3363 PL_statusvalue = n << 8; \
3366 # define STATUS_UNIX_SET(n) \
3368 PL_statusvalue = (n); \
3369 if (PL_statusvalue != -1) \
3370 PL_statusvalue &= 0xFFFF; \
3372 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3373 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3374 # define STATUS_CURRENT STATUS_UNIX
3375 # define STATUS_EXIT STATUS_UNIX
3376 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3377 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3380 # define STATUS_NATIVE PL_statusvalue_posix
3381 # if defined(WCOREDUMP)
3382 # define STATUS_NATIVE_CHILD_SET(n) \
3384 PL_statusvalue_posix = (n); \
3385 if (PL_statusvalue_posix == -1) \
3386 PL_statusvalue = -1; \
3389 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3390 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3391 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3394 # elif defined(WIFEXITED)
3395 # define STATUS_NATIVE_CHILD_SET(n) \
3397 PL_statusvalue_posix = (n); \
3398 if (PL_statusvalue_posix == -1) \
3399 PL_statusvalue = -1; \
3402 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3403 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3407 # define STATUS_NATIVE_CHILD_SET(n) \
3409 PL_statusvalue_posix = (n); \
3410 if (PL_statusvalue_posix == -1) \
3411 PL_statusvalue = -1; \
3414 PL_statusvalue_posix & 0xFFFF; \
3418 # define STATUS_UNIX_SET(n) \
3420 PL_statusvalue = (n); \
3421 if (PL_statusvalue != -1) \
3422 PL_statusvalue &= 0xFFFF; \
3424 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3425 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3426 # define STATUS_CURRENT STATUS_UNIX
3427 # define STATUS_EXIT STATUS_UNIX
3428 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3429 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3432 /* flags in PL_exit_flags for nature of exit() */
3433 #define PERL_EXIT_EXPECTED 0x01
3434 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
3435 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3436 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
3439 /* format to use for version numbers in file/directory names */
3440 /* XXX move to Configure? */
3441 /* This was only ever used for the current version, and that can be done at
3442 compile time, as PERL_FS_VERSION, so should we just delete it? */
3443 # ifndef PERL_FS_VER_FMT
3444 # define PERL_FS_VER_FMT "%d.%d.%d"
3448 #ifndef PERL_FS_VERSION
3449 # define PERL_FS_VERSION PERL_VERSION_STRING
3452 /* This defines a way to flush all output buffers. This may be a
3453 * performance issue, so we allow people to disable it. Also, if
3454 * we are using stdio, there are broken implementations of fflush(NULL)
3455 * out there, Solaris being the most prominent.
3457 #ifndef PERL_FLUSHALL_FOR_CHILD
3458 # if defined(USE_PERLIO) || defined(FFLUSH_NULL)
3459 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
3460 # elif defined(FFLUSH_ALL)
3461 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
3463 # define PERL_FLUSHALL_FOR_CHILD NOOP
3467 #ifndef PERL_WAIT_FOR_CHILDREN
3468 # define PERL_WAIT_FOR_CHILDREN NOOP
3471 /* the traditional thread-unsafe notion of "current interpreter". */
3472 #ifndef PERL_SET_INTERP
3473 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3476 #ifndef PERL_GET_INTERP
3477 # define PERL_GET_INTERP (PL_curinterp)
3480 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3481 # ifdef MULTIPLICITY
3482 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
3484 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3488 This replaces the previous %_ "hack" by the "%p" hacks.
3489 All that is required is that the perl source does not
3490 use "%-p" or "%-<number>p" or "%<number>p" formats.
3491 These formats will still work in perl code.
3492 See comments in sv.c for further details.
3494 Robin Barker 2005-07-14
3496 No longer use %1p for VDf = %vd. RMB 2007-10-19
3500 # define SVf_(n) "-" STRINGIFY(n) "p"
3508 # define SVf32 SVf_(32)
3512 # define SVf256 SVf_(256)
3515 #define SVfARG(p) ((void*)(p))
3521 /* Not ideal, but we cannot easily include a number in an already-numeric
3522 * format sequence. */
3524 # define HEKf256 "3p"
3527 #define HEKfARG(p) ((void*)(p))
3530 =for apidoc Amnh||UTF8f
3531 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str
3534 * %4p is a custom format
3537 # define UTF8f "d%" UVuf "%4p"
3539 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3542 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
3545 /* not used; but needed for backward compatibility with XS code? - RMB */
3551 #if !defined(DEBUGGING) && !defined(NDEBUG)
3556 /* For functions that are marked as __attribute__noreturn__, it's not
3557 appropriate to call return. In either case, include the lint directive.
3559 #ifdef HASATTRIBUTE_NORETURN
3560 # define NORETURN_FUNCTION_END NOT_REACHED;
3562 # define NORETURN_FUNCTION_END NOT_REACHED; return 0
3565 #ifdef HAS_BUILTIN_EXPECT
3566 # define EXPECT(expr,val) __builtin_expect(expr,val)
3568 # define EXPECT(expr,val) (expr)
3572 =head1 Miscellaneous Functions
3574 =for apidoc AmU|bool|LIKELY|const bool expr
3576 Returns the input unchanged, but at the same time it gives a branch prediction
3577 hint to the compiler that this condition is likely to be true.
3579 =for apidoc AmU|bool|UNLIKELY|const bool expr
3581 Returns the input unchanged, but at the same time it gives a branch prediction
3582 hint to the compiler that this condition is likely to be false.
3586 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3587 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
3589 #ifdef HAS_BUILTIN_CHOOSE_EXPR
3593 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
3594 time invariants. That is, their argument must be a constant expression that
3595 can be verified by the compiler. This expression can contain anything that's
3596 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3597 the expression evaluates to 0, compilation fails.
3598 Because they generate no runtime code (i.e. their use is "free"), they're
3599 always active, even under non-DEBUGGING builds.
3600 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
3601 file scope (outside of any function).
3602 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3605 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \
3606 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \
3607 || (__STDC_VERSION__ - 0) >= 201101L)) \
3608 || (defined(__cplusplus) && __cplusplus >= 201103L))
3609 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler
3610 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3611 matter what <assert.h> says.
3613 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
3615 /* We use a bit-field instead of an array because gcc accepts
3616 'typedef char x[n]' where n is not a compile-time constant.
3617 We want to enforce constantness.
3619 # define STATIC_ASSERT_2(COND, SUFFIX) \
3621 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3622 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3623 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3624 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
3626 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3627 error (static_assert is a declaration, and only statements can have labels).
3629 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
3631 #ifndef __has_builtin
3632 # define __has_builtin(x) 0 /* not a clang style compiler */
3635 /* ASSUME is like assert(), but it has a benefit in a release build. It is a
3636 hint to a compiler about a statement of fact in a function call free
3637 expression, which allows the compiler to generate better machine code.
3638 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3639 the control path is unreachable. In a for loop, ASSUME can be used to hint
3640 that a loop will run at least X times. ASSUME is based off MSVC's __assume
3641 intrinsic function, see its documents for more details.
3645 # if __has_builtin(__builtin_unreachable) \
3646 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
3647 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3648 # elif defined(_MSC_VER)
3649 # define ASSUME(x) __assume(x)
3650 # elif defined(__ARMCC_VERSION) /* untested */
3651 # define ASSUME(x) __promise(x)
3653 /* a random compiler might define assert to its own special optimization token
3654 so pass it through to C lib as a last resort */
3655 # define ASSUME(x) assert(x)
3658 # define ASSUME(x) assert(x)
3661 #if defined(__sun) /* ASSUME() generates warnings on Solaris */
3662 # define NOT_REACHED
3663 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3664 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3665 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
3667 # define NOT_REACHED ASSUME(!"UNREACHABLE")
3670 /* Some unistd.h's give a prototype for pause() even though
3671 HAS_PAUSE ends up undefined. This causes the #define
3672 below to be rejected by the compiler. Sigh.
3677 #define Pause() sleep((32767<<16)+32767)
3681 # ifdef IOCPARM_MASK
3682 /* on BSDish systems we're safe */
3683 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3684 # elif defined(_IOC_SIZE) && defined(__GLIBC__)
3685 /* on Linux systems we're safe; except when we're not [perl #38223] */
3686 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3688 /* otherwise guess at what's safe */
3689 # define IOCPARM_LEN(x) 256
3693 #if defined(__CYGWIN__)
3695 * This symbol, if defined, indicates that the program should
3696 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3697 * that a file is in "binary" mode -- that is, that no translation
3698 * of bytes occurs on read or write operations.
3700 # define USEMYBINMODE /**/
3701 # include <io.h> /* for setmode() prototype */
3702 # define my_binmode(fp, iotype, mode) \
3703 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
3707 void init_os_extras(void);
3710 #ifdef UNION_ANY_DEFINITION
3711 UNION_ANY_DEFINITION;
3729 void (*any_dptr) (void*);
3730 void (*any_dxptr) (pTHX_ void*);
3734 typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3736 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3737 #define FILTER_DATA(idx) \
3738 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3739 #define FILTER_ISREADER(idx) \
3740 (PL_parser && PL_parser->rsfp_filters \
3741 && idx >= AvFILLp(PL_parser->rsfp_filters))
3742 #define PERL_FILTER_EXISTS(i) \
3743 (PL_parser && PL_parser->rsfp_filters \
3744 && (i) <= av_tindex(PL_parser->rsfp_filters))
3746 #if defined(_AIX) && !defined(_AIX43)
3747 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3748 /* We cannot include <crypt.h> to get the struct crypt_data
3749 * because of setkey prototype problems when threading */
3750 typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3751 /* From OSF, Not needed in AIX
3759 #endif /* threading */
3762 #ifndef PERL_CALLCONV
3764 # define PERL_CALLCONV extern "C"
3766 # define PERL_CALLCONV
3769 #ifndef PERL_CALLCONV_NO_RET
3770 # define PERL_CALLCONV_NO_RET PERL_CALLCONV
3773 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3774 dont have a noreturn as a declaration specifier
3776 #ifndef PERL_STATIC_NO_RET
3777 # define PERL_STATIC_NO_RET STATIC
3779 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3780 builds that dont have a noreturn as a declaration specifier
3782 #ifndef PERL_STATIC_INLINE_NO_RET
3783 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3786 #ifndef PERL_STATIC_FORCE_INLINE
3787 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE
3790 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET
3791 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE
3795 # include "iperlsys.h"
3798 #ifdef __LIBCATAMOUNT__
3799 #undef HAS_PASSWD /* unixish.h but not unixish enough. */
3801 #define FAKE_BIT_BUCKET
3804 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3805 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3806 * Configure, despite their names being similar to other defines like
3807 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3808 * hashes. Therefore to enable/disable the hash randomisation defines
3809 * use the Configure -Accflags=... instead. */
3810 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
3811 # define USE_HASH_SEED
3817 /* macros to define bit-fields in structs. */
3818 #ifndef PERL_BITFIELD8
3819 # define PERL_BITFIELD8 U8
3821 #ifndef PERL_BITFIELD16
3822 # define PERL_BITFIELD16 U16
3824 #ifndef PERL_BITFIELD32
3825 # define PERL_BITFIELD32 U32
3835 #include "opnames.h"
3842 #include "warnings.h"
3845 /* these would be in doio.h if there was such a file */
3846 #define my_stat() my_stat_flags(SV_GMAGIC)
3847 #define my_lstat() my_lstat_flags(SV_GMAGIC)
3849 /* defined in sv.c, but also used in [ach]v.c */
3852 #undef _XPVCV_COMMON
3856 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
3858 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3860 /* These have to be predeclared, as they are used in proto.h which is #included
3861 * before their definitions in regcomp.h. */
3864 typedef struct regnode_charclass regnode_charclass;
3866 /* A hopefully less confusing name. The sub-classes are all Posix classes only
3867 * used under /l matching */
3868 typedef struct regnode_charclass_posixl regnode_charclass_class;
3869 typedef struct regnode_charclass_posixl regnode_charclass_posixl;
3871 typedef struct regnode_ssc regnode_ssc;
3872 typedef struct RExC_state_t RExC_state_t;
3873 struct _reg_trie_data;
3877 struct ptr_tbl_ent {
3878 struct ptr_tbl_ent* next;
3884 struct ptr_tbl_ent** tbl_ary;
3887 struct ptr_tbl_arena *tbl_arena;
3888 struct ptr_tbl_ent *tbl_arena_next;
3889 struct ptr_tbl_ent *tbl_arena_end;
3892 #if defined(htonl) && !defined(HAS_HTONL)
3895 #if defined(htons) && !defined(HAS_HTONS)
3898 #if defined(ntohl) && !defined(HAS_NTOHL)
3901 #if defined(ntohs) && !defined(HAS_NTOHS)
3909 # if (BYTEORDER & 0xffff) == 0x4321
3910 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3911 re-order their values. However, to behave identically to the alternative
3912 implementations, they should truncate to the correct size. */
3913 # define ntohl(x) ((x)&0xFFFFFFFF)
3914 # define htonl(x) ntohl(x)
3915 # define ntohs(x) ((x)&0xFFFF)
3916 # define htons(x) ntohs(x)
3917 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3919 /* Note that we can't straight out declare our own htonl and htons because
3920 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3921 to avoid the overhead of initialising the socket subsystem, but the headers
3922 that *declare* the various functions are still seen. If we declare our own
3923 htonl etc they will clash with the declarations in the Win32 headers. */
3925 PERL_STATIC_INLINE U32
3926 my_swap32(const U32 x) {
3927 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3928 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3931 PERL_STATIC_INLINE U16
3932 my_swap16(const U16 x) {
3933 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3936 # define htonl(x) my_swap32(x)
3937 # define ntohl(x) my_swap32(x)
3938 # define ntohs(x) my_swap16(x)
3939 # define htons(x) my_swap16(x)
3941 # error "Unsupported byteorder"
3942 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3943 the error message. Please check the value of the macro BYTEORDER, as defined
3944 in config.h. The values of BYTEORDER we expect are
3946 big endian little endian
3947 32 bit 0x4321 0x1234
3948 64 bit 0x87654321 0x12345678
3950 If you have a system with a different byte order, please see
3951 pod/perlhack.pod for how to submit a patch to add supporting code.
3957 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3960 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3961 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3962 re-order their values. However, to behave identically to the alternative
3963 implementations, they should truncate to the correct size. */
3964 # define vtohl(x) ((x)&0xFFFFFFFF)
3965 # define vtohs(x) ((x)&0xFFFF)
3966 # define htovl(x) vtohl(x)
3967 # define htovs(x) vtohs(x)
3968 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3969 # define vtohl(x) ((((x)&0xFF)<<24) \
3971 +(((x)&0x0000FF00)<<8) \
3972 +(((x)&0x00FF0000)>>8) )
3973 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3974 # define htovl(x) vtohl(x)
3975 # define htovs(x) vtohs(x)
3977 # error "Unsupported byteorder"
3978 /* If you have need for current perl on PDP-11 or similar, and can help test
3979 that blead keeps working on a mixed-endian system, then see
3980 pod/perlhack.pod for how to submit patches to things working again. */
3983 /* *MAX Plus 1. A floating point value.
3984 Hopefully expressed in a way that dodgy floating point can't mess up.
3985 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3987 May find that some broken compiler will want the value cast to I32.
3988 [after the shift, as signed >> may not be as secure as unsigned >>]
3990 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3991 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3992 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3993 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3994 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3996 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
3998 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3999 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
4000 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
4002 /* This may look like unnecessary jumping through hoops, but converting
4003 out of range floating point values to integers *is* undefined behaviour,
4004 and it is starting to bite.
4007 #define I_32(what) (cast_i32((NV)(what)))
4008 #define U_32(what) (cast_ulong((NV)(what)))
4009 #define I_V(what) (cast_iv((NV)(what)))
4010 #define U_V(what) (cast_uv((NV)(what)))
4012 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
4013 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
4014 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
4015 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
4016 : ((n) < U32_MAX_P1 ? (U32) (n) \
4017 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
4018 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
4019 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
4020 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
4021 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
4022 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
4023 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
4026 #define U_S(what) ((U16)U_32(what))
4027 #define U_I(what) ((unsigned int)U_32(what))
4028 #define U_L(what) U_32(what)
4031 # ifndef Perl_signbit
4032 # define Perl_signbit signbit
4036 /* These do not care about the fractional part, only about the range. */
4037 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
4038 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
4040 /* Used with UV/IV arguments: */
4041 /* XXXX: need to speed it up */
4042 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
4043 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
4051 Uid_t getuid (void);
4052 Uid_t geteuid (void);
4053 Gid_t getgid (void);
4054 Gid_t getegid (void);
4058 #ifndef Perl_debug_log
4059 # define Perl_debug_log PerlIO_stderr()
4062 #ifndef Perl_error_log
4063 # define Perl_error_log (PL_stderrgv \
4064 && isGV(PL_stderrgv) \
4065 && GvIOp(PL_stderrgv) \
4066 && IoOFP(GvIOp(PL_stderrgv)) \
4067 ? IoOFP(GvIOp(PL_stderrgv)) \
4072 #define DEBUG_p_FLAG 0x00000001 /* 1 */
4073 #define DEBUG_s_FLAG 0x00000002 /* 2 */
4074 #define DEBUG_l_FLAG 0x00000004 /* 4 */
4075 #define DEBUG_t_FLAG 0x00000008 /* 8 */
4076 #define DEBUG_o_FLAG 0x00000010 /* 16 */
4077 #define DEBUG_c_FLAG 0x00000020 /* 32 */
4078 #define DEBUG_P_FLAG 0x00000040 /* 64 */
4079 #define DEBUG_m_FLAG 0x00000080 /* 128 */
4080 #define DEBUG_f_FLAG 0x00000100 /* 256 */
4081 #define DEBUG_r_FLAG 0x00000200 /* 512 */
4082 #define DEBUG_x_FLAG 0x00000400 /* 1024 */
4083 #define DEBUG_u_FLAG 0x00000800 /* 2048 */
4084 /* U is reserved for Unofficial, exploratory hacking */
4085 #define DEBUG_U_FLAG 0x00001000 /* 4096 */
4087 #define DEBUG_X_FLAG 0x00004000 /* 16384 */
4088 #define DEBUG_D_FLAG 0x00008000 /* 32768 */
4089 #define DEBUG_S_FLAG 0x00010000 /* 65536 */
4090 #define DEBUG_T_FLAG 0x00020000 /* 131072 */
4091 #define DEBUG_R_FLAG 0x00040000 /* 262144 */
4092 #define DEBUG_J_FLAG 0x00080000 /* 524288 */
4093 #define DEBUG_v_FLAG 0x00100000 /*1048576 */
4094 #define DEBUG_C_FLAG 0x00200000 /*2097152 */
4095 #define DEBUG_A_FLAG 0x00400000 /*4194304 */
4096 #define DEBUG_q_FLAG 0x00800000 /*8388608 */
4097 #define DEBUG_M_FLAG 0x01000000 /*16777216*/
4098 #define DEBUG_B_FLAG 0x02000000 /*33554432*/
4099 #define DEBUG_L_FLAG 0x04000000 /*67108864*/
4100 #define DEBUG_i_FLAG 0x08000000 /*134217728*/
4101 #define DEBUG_y_FLAG 0x10000000 /*268435456*/
4102 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */
4104 #define DEBUG_DB_RECURSE_FLAG 0x40000000
4105 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
4107 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
4108 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
4109 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
4110 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
4111 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
4112 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
4113 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
4114 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
4115 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
4116 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
4117 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
4118 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
4119 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
4120 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
4121 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
4122 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
4123 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
4124 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
4125 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
4126 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
4127 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
4128 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
4129 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
4130 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
4131 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
4132 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
4133 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
4134 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG)
4135 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
4136 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
4137 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
4138 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
4139 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_)
4143 # define DEBUG_p_TEST DEBUG_p_TEST_
4144 # define DEBUG_s_TEST DEBUG_s_TEST_
4145 # define DEBUG_l_TEST DEBUG_l_TEST_
4146 # define DEBUG_t_TEST DEBUG_t_TEST_
4147 # define DEBUG_o_TEST DEBUG_o_TEST_
4148 # define DEBUG_c_TEST DEBUG_c_TEST_
4149 # define DEBUG_P_TEST DEBUG_P_TEST_
4150 # define DEBUG_m_TEST DEBUG_m_TEST_
4151 # define DEBUG_f_TEST DEBUG_f_TEST_
4152 # define DEBUG_r_TEST DEBUG_r_TEST_
4153 # define DEBUG_x_TEST DEBUG_x_TEST_
4154 # define DEBUG_u_TEST DEBUG_u_TEST_
4155 # define DEBUG_U_TEST DEBUG_U_TEST_
4156 # define DEBUG_X_TEST DEBUG_X_TEST_
4157 # define DEBUG_D_TEST DEBUG_D_TEST_
4158 # define DEBUG_S_TEST DEBUG_S_TEST_
4159 # define DEBUG_T_TEST DEBUG_T_TEST_
4160 # define DEBUG_R_TEST DEBUG_R_TEST_
4161 # define DEBUG_J_TEST DEBUG_J_TEST_
4162 # define DEBUG_v_TEST DEBUG_v_TEST_
4163 # define DEBUG_C_TEST DEBUG_C_TEST_
4164 # define DEBUG_A_TEST DEBUG_A_TEST_
4165 # define DEBUG_q_TEST DEBUG_q_TEST_
4166 # define DEBUG_M_TEST DEBUG_M_TEST_
4167 # define DEBUG_B_TEST DEBUG_B_TEST_
4168 # define DEBUG_L_TEST DEBUG_L_TEST_
4169 # define DEBUG_i_TEST DEBUG_i_TEST_
4170 # define DEBUG_y_TEST DEBUG_y_TEST_
4171 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4172 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_
4173 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_
4174 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_
4175 # define DEBUG_yv_TEST DEBUG_yv_TEST_
4177 # define PERL_DEB(a) a
4178 # define PERL_DEB2(a,b) a
4179 # define PERL_DEBUG(a) if (PL_debug) a
4180 # define DEBUG_p(a) if (DEBUG_p_TEST) a
4181 # define DEBUG_s(a) if (DEBUG_s_TEST) a
4182 # define DEBUG_l(a) if (DEBUG_l_TEST) a
4183 # define DEBUG_t(a) if (DEBUG_t_TEST) a
4184 # define DEBUG_o(a) if (DEBUG_o_TEST) a
4185 # define DEBUG_c(a) if (DEBUG_c_TEST) a
4186 # define DEBUG_P(a) if (DEBUG_P_TEST) a
4188 /* Temporarily turn off memory debugging in case the a
4189 * does memory allocation, either directly or indirectly. */
4190 # define DEBUG_m(a) \
4192 if (PERL_GET_INTERP) { \
4194 if (DEBUG_m_TEST) { \
4195 PL_debug &= ~DEBUG_m_FLAG; \
4197 PL_debug |= DEBUG_m_FLAG; \
4202 # define DEBUG__(t, a) \
4204 if (t) STMT_START {a;} STMT_END; \
4207 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
4209 /* For re_comp.c, re_exec.c, assume -Dr has been specified */
4210 # ifdef PERL_EXT_RE_BUILD
4211 # define DEBUG_r(a) STMT_START {a;} STMT_END
4213 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
4214 # endif /* PERL_EXT_RE_BUILD */
4216 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4217 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
4218 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
4219 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4220 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
4221 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4222 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
4223 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
4224 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
4225 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a)
4227 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
4228 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4229 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
4230 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
4231 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
4232 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4233 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
4234 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
4235 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
4236 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
4237 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
4238 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a)
4240 #else /* ! DEBUGGING below */
4242 # define DEBUG_p_TEST (0)
4243 # define DEBUG_s_TEST (0)
4244 # define DEBUG_l_TEST (0)
4245 # define DEBUG_t_TEST (0)
4246 # define DEBUG_o_TEST (0)
4247 # define DEBUG_c_TEST (0)
4248 # define DEBUG_P_TEST (0)
4249 # define DEBUG_m_TEST (0)
4250 # define DEBUG_f_TEST (0)
4251 # define DEBUG_r_TEST (0)
4252 # define DEBUG_x_TEST (0)
4253 # define DEBUG_u_TEST (0)
4254 # define DEBUG_U_TEST (0)
4255 # define DEBUG_X_TEST (0)
4256 # define DEBUG_D_TEST (0)
4257 # define DEBUG_S_TEST (0)
4258 # define DEBUG_T_TEST (0)
4259 # define DEBUG_R_TEST (0)
4260 # define DEBUG_J_TEST (0)
4261 # define DEBUG_v_TEST (0)
4262 # define DEBUG_C_TEST (0)
4263 # define DEBUG_A_TEST (0)
4264 # define DEBUG_q_TEST (0)
4265 # define DEBUG_M_TEST (0)
4266 # define DEBUG_B_TEST (0)
4267 # define DEBUG_L_TEST (0)
4268 # define DEBUG_i_TEST (0)
4269 # define DEBUG_y_TEST (0)
4270 # define DEBUG_Xv_TEST (0)
4271 # define DEBUG_Uv_TEST (0)
4272 # define DEBUG_Pv_TEST (0)
4273 # define DEBUG_Lv_TEST (0)
4274 # define DEBUG_yv_TEST (0)
4276 # define PERL_DEB(a)
4277 # define PERL_DEB2(a,b) b
4278 # define PERL_DEBUG(a)
4306 # define DEBUG_Xv(a)
4307 # define DEBUG_Uv(a)
4308 # define DEBUG_Pv(a)
4309 # define DEBUG_Lv(a)
4310 # define DEBUG_yv(a)
4311 #endif /* DEBUGGING */
4314 #define DEBUG_SCOPE(where) \
4316 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4317 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
4318 __FILE__, __LINE__));
4320 /* Keep the old croak based assert for those who want it, and as a fallback if
4321 the platform is so heretically non-ANSI that it can't assert. */
4323 #define Perl_assert(what) PERL_DEB2( \
4324 ((what) ? ((void) 0) : \
4325 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
4326 "\", line %d", STRINGIFY(what), __LINE__), \
4327 (void) 0)), ((void)0))
4329 /* assert() gets defined if DEBUGGING.
4330 * If no DEBUGGING, the <assert.h> has not been included. */
4332 # define assert(what) Perl_assert(what)
4335 # define assert_(what) assert(what),
4337 # define assert_(what)
4341 I32 (*uf_val)(pTHX_ IV, SV*);
4342 I32 (*uf_set)(pTHX_ IV, SV*);
4346 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
4347 * XS code wanting to be backward compatible can do something
4348 * like the following:
4350 #ifndef PERL_MG_UFUNC
4351 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4354 static PERL_MG_UFUNC(foo_get, index, val)
4364 #ifndef PERL_MG_UFUNC
4365 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
4370 /* isfinite and others are here rather than in math.h as C99 stipulates */
4375 # if !defined(WIN32) && !defined(VMS)
4377 char *crypt (const char*, const char*);
4379 # endif /* !WIN32 */
4382 char *getlogin (void);
4384 # endif /* !WIN32 */
4385 #endif /* !__cplusplus */
4387 /* Fixme on VMS. This needs to be a run-time, not build time options */
4388 /* Also rename() is affected by this */
4389 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
4390 #define UNLINK unlnk
4391 I32 unlnk (pTHX_ const char*);
4393 #define UNLINK PerlLIO_unlink
4396 /* some versions of glibc are missing the setresuid() proto */
4397 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
4398 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4400 /* some versions of glibc are missing the setresgid() proto */
4401 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
4402 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4405 #ifndef HAS_SETREUID
4406 # ifdef HAS_SETRESUID
4407 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4408 # define HAS_SETREUID
4411 #ifndef HAS_SETREGID
4412 # ifdef HAS_SETRESGID
4413 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4414 # define HAS_SETREGID
4418 /* Sighandler_t defined in iperlsys.h */
4420 #ifdef HAS_SIGACTION
4421 typedef struct sigaction Sigsave_t;
4423 typedef Sighandler_t Sigsave_t;
4434 # define RUNOPS_DEFAULT Perl_runops_debug
4436 # define RUNOPS_DEFAULT Perl_runops_standard
4439 #if defined(USE_PERLIO)
4440 EXTERN_C void PerlIO_teardown(void);
4441 # ifdef USE_ITHREADS
4442 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4443 # define PERLIO_TERM \
4445 PerlIO_teardown(); \
4446 MUTEX_DESTROY(&PL_perlio_mutex);\
4449 # define PERLIO_INIT
4450 # define PERLIO_TERM PerlIO_teardown()
4453 # define PERLIO_INIT
4454 # define PERLIO_TERM
4458 # ifdef MUTEX_INIT_CALLS_MALLOC
4459 # define MALLOC_INIT \
4461 PL_malloc_mutex = NULL; \
4462 MUTEX_INIT(&PL_malloc_mutex); \
4464 # define MALLOC_TERM \
4466 perl_mutex tmp = PL_malloc_mutex; \
4467 PL_malloc_mutex = NULL; \
4468 MUTEX_DESTROY(&tmp); \
4471 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4472 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4475 # define MALLOC_INIT
4476 # define MALLOC_TERM
4479 #if defined(PERL_IMPLICIT_CONTEXT)
4481 struct perl_memory_debug_header;
4482 struct perl_memory_debug_header {
4484 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
4487 struct perl_memory_debug_header *prev;
4488 struct perl_memory_debug_header *next;
4489 # ifdef PERL_DEBUG_READONLY_COW
4494 #elif defined(PERL_DEBUG_READONLY_COW)
4496 struct perl_memory_debug_header;
4497 struct perl_memory_debug_header {
4503 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
4505 # define PERL_MEMORY_DEBUG_HEADER_SIZE \
4506 (sizeof(struct perl_memory_debug_header) + \
4507 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4508 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4511 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0
4514 #ifdef PERL_TRACK_MEMPOOL
4515 # ifdef PERL_DEBUG_READONLY_COW
4516 # define INIT_TRACK_MEMPOOL(header, interp) \
4518 (header).interpreter = (interp); \
4519 (header).prev = (header).next = &(header); \
4520 (header).readonly = 0; \
4523 # define INIT_TRACK_MEMPOOL(header, interp) \
4525 (header).interpreter = (interp); \
4526 (header).prev = (header).next = &(header); \
4530 # define INIT_TRACK_MEMPOOL(header, interp)
4533 #ifdef I_MALLOCMALLOC
4534 /* Needed for malloc_size(), malloc_good_size() on some systems */
4535 # include <malloc/malloc.h>
4539 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
4541 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
4542 # ifdef PERL_TRACK_MEMPOOL
4543 # define Perl_safesysmalloc_size(where) \
4544 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4546 # define Perl_safesysmalloc_size(where) malloc_size(where)
4549 # ifdef HAS_MALLOC_GOOD_SIZE
4550 # ifdef PERL_TRACK_MEMPOOL
4551 # define Perl_malloc_good_size(how_much) \
4552 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
4554 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4557 /* Having this as the identity operation makes some code simpler. */
4558 # define Perl_malloc_good_size(how_much) (how_much)
4562 typedef int (*runops_proc_t)(pTHX);
4563 typedef void (*share_proc_t) (pTHX_ SV *sv);
4564 typedef int (*thrhook_proc_t) (pTHX);
4565 typedef OP* (*PPADDR_t[]) (pTHX);
4566 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4567 typedef void (*despatch_signals_proc_t) (pTHX);
4569 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4570 # include <crt_externs.h> /* for the env array */
4571 # define environ (*_NSGetEnviron())
4572 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
4573 /* VMS and some other platforms don't use the environ array */
4574 EXTERN_C char **environ; /* environment variables supplied via exec */
4577 #define PERL_PATCHLEVEL_H_IMPLICIT
4578 #include "patchlevel.h"
4579 #undef PERL_PATCHLEVEL_H_IMPLICIT
4581 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4582 STRINGIFY(PERL_VERSION) "." \
4583 STRINGIFY(PERL_SUBVERSION)
4585 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4586 STRINGIFY(PERL_API_VERSION) "." \
4587 STRINGIFY(PERL_API_SUBVERSION)
4591 /* handy constants */
4592 EXTCONST char PL_warn_uninit[]
4593 INIT("Use of uninitialized value%s%s%s");
4594 EXTCONST char PL_warn_uninit_sv[]
4595 INIT("Use of uninitialized value%" SVf "%s%s");
4596 EXTCONST char PL_warn_nosemi[]
4597 INIT("Semicolon seems to be missing");
4598 EXTCONST char PL_warn_reserved[]
4599 INIT("Unquoted string \"%s\" may clash with future reserved word");
4600 EXTCONST char PL_warn_nl[]
4601 INIT("Unsuccessful %s on filename containing newline");
4602 EXTCONST char PL_no_wrongref[]
4603 INIT("Can't use %s ref as %s ref");
4604 /* The core no longer needs this here. If you require the string constant,
4605 please inline a copy into your own code. */
4606 EXTCONST char PL_no_symref[] __attribute__deprecated__
4607 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4608 EXTCONST char PL_no_symref_sv[]
4609 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4611 EXTCONST char PL_no_usym[]
4612 INIT("Can't use an undefined value as %s reference");
4613 EXTCONST char PL_no_aelem[]
4614 INIT("Modification of non-creatable array value attempted, subscript %d");
4615 EXTCONST char PL_no_helem_sv[]
4616 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
4617 EXTCONST char PL_no_modify[]
4618 INIT("Modification of a read-only value attempted");
4619 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
4620 INIT("Out of memory!\n");
4621 EXTCONST char PL_no_security[]
4622 INIT("Insecure dependency in %s%s");
4623 EXTCONST char PL_no_sock_func[]
4624 INIT("Unsupported socket function \"%s\" called");
4625 EXTCONST char PL_no_dir_func[]
4626 INIT("Unsupported directory function \"%s\" called");
4627 EXTCONST char PL_no_func[]
4628 INIT("The %s function is unimplemented");
4629 EXTCONST char PL_no_myglob[]
4630 INIT("\"%s\" %s %s can't be in a package");
4631 EXTCONST char PL_no_localize_ref[]
4632 INIT("Can't localize through a reference");
4633 EXTCONST char PL_memory_wrap[]
4634 INIT("panic: memory wrap");
4635 EXTCONST char PL_extended_cp_format[]
4636 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension,"
4637 " and so is not portable");
4638 EXTCONST char PL_Yes[]
4640 EXTCONST char PL_No[]
4642 EXTCONST char PL_Zero[]
4644 EXTCONST char PL_hexdigit[]
4645 INIT("0123456789abcdef0123456789ABCDEF");
4647 EXTCONST STRLEN PL_WARN_ALL
4649 EXTCONST STRLEN PL_WARN_NONE
4652 /* This is constant on most architectures, a global on OS/2 */
4654 EXTCONST char PL_sh_path[]
4655 INIT(SH_PATH); /* full path of shell */
4659 EXTCONST char PL_cshname[]
4661 # define PL_cshlen (sizeof(CSH "") - 1)
4664 /* These are baked at compile time into any shared perl library.
4665 In future releases this will allow us in main() to sanity test the
4666 library we're linking against. */
4668 EXTCONST U8 PL_revision
4669 INIT(PERL_REVISION);
4670 EXTCONST U8 PL_version
4672 EXTCONST U8 PL_subversion
4673 INIT(PERL_SUBVERSION);
4675 EXTCONST char PL_uuemap[65]
4676 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4678 /* a special string address whose value is "isa", but which perl knows
4679 * to treat as if it were really "DOES" when printing the method name in
4680 * the "Can't call method '%s'" error message */
4681 EXTCONST char PL_isa_DOES[]
4685 EXTCONST char PL_uudmap[256] =
4687 # include "uuudmap.h"
4689 # include "uudmap.h"
4692 EXTCONST char PL_bitcount[256] =
4694 # include "ubitcount.h"
4696 # include "bitcount.h"
4699 EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4700 EXTCONST int PL_sig_num[] = { SIG_NUM };
4702 EXTCONST char PL_uudmap[256];
4703 EXTCONST char PL_bitcount[256];
4704 EXTCONST char* const PL_sig_name[];
4705 EXTCONST int PL_sig_num[];
4708 /* fast conversion and case folding tables. The folding tables complement the
4709 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4710 * folds such as outside the range or to multiple characters. */
4715 /* The EBCDIC fold table depends on the code page, and hence is found in
4716 * ebcdic_tables.h */
4718 EXTCONST unsigned char PL_fold[] = {
4719 0, 1, 2, 3, 4, 5, 6, 7,
4720 8, 9, 10, 11, 12, 13, 14, 15,
4721 16, 17, 18, 19, 20, 21, 22, 23,
4722 24, 25, 26, 27, 28, 29, 30, 31,
4723 32, 33, 34, 35, 36, 37, 38, 39,
4724 40, 41, 42, 43, 44, 45, 46, 47,
4725 48, 49, 50, 51, 52, 53, 54, 55,
4726 56, 57, 58, 59, 60, 61, 62, 63,
4727 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4728 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4729 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4730 'x', 'y', 'z', 91, 92, 93, 94, 95,
4731 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4732 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4733 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4734 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4735 128, 129, 130, 131, 132, 133, 134, 135,
4736 136, 137, 138, 139, 140, 141, 142, 143,
4737 144, 145, 146, 147, 148, 149, 150, 151,
4738 152, 153, 154, 155, 156, 157, 158, 159,
4739 160, 161, 162, 163, 164, 165, 166, 167,
4740 168, 169, 170, 171, 172, 173, 174, 175,
4741 176, 177, 178, 179, 180, 181, 182, 183,
4742 184, 185, 186, 187, 188, 189, 190, 191,
4743 192, 193, 194, 195, 196, 197, 198, 199,
4744 200, 201, 202, 203, 204, 205, 206, 207,
4745 208, 209, 210, 211, 212, 213, 214, 215,
4746 216, 217, 218, 219, 220, 221, 222, 223,
4747 224, 225, 226, 227, 228, 229, 230, 231,
4748 232, 233, 234, 235, 236, 237, 238, 239,
4749 240, 241, 242, 243, 244, 245, 246, 247,
4750 248, 249, 250, 251, 252, 253, 254, 255
4753 EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4754 0, 1, 2, 3, 4, 5, 6, 7,
4755 8, 9, 10, 11, 12, 13, 14, 15,
4756 16, 17, 18, 19, 20, 21, 22, 23,
4757 24, 25, 26, 27, 28, 29, 30, 31,
4758 32, 33, 34, 35, 36, 37, 38, 39,
4759 40, 41, 42, 43, 44, 45, 46, 47,
4760 48, 49, 50, 51, 52, 53, 54, 55,
4761 56, 57, 58, 59, 60, 61, 62, 63,
4762 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4763 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4764 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4765 'x', 'y', 'z', 91, 92, 93, 94, 95,
4766 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4767 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4768 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4769 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4770 128, 129, 130, 131, 132, 133, 134, 135,
4771 136, 137, 138, 139, 140, 141, 142, 143,
4772 144, 145, 146, 147, 148, 149, 150, 151,
4773 152, 153, 154, 155, 156, 157, 158, 159,
4774 160, 161, 162, 163, 164, 165, 166, 167,
4775 168, 169, 170, 171, 172, 173, 174, 175,
4776 176, 177, 178, 179, 180, 181, 182, 183,
4777 184, 185, 186, 187, 188, 189, 190, 191,
4778 192, 193, 194, 195, 196, 197, 198, 199,
4779 200, 201, 202, 203, 204, 205, 206, 207,
4780 208, 209, 210, 211, 212, 213, 214, 215,
4781 216, 217, 218, 219, 220, 221, 222, 223,
4782 224, 225, 226, 227, 228, 229, 230, 231,
4783 232, 233, 234, 235, 236, 237, 238, 239,
4784 240, 241, 242, 243, 244, 245, 246, 247,
4785 248, 249, 250, 251, 252, 253, 254, 255
4788 EXTCONST unsigned char PL_fold_latin1[] = {
4789 /* Full latin1 complement folding, except for three problematic code points:
4790 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4791 * fold complements outside the Latin1 range, so can't match something
4792 * that isn't in utf8.
4793 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4794 * not one, so can't be represented in this table.
4796 * All have to be specially handled */
4797 0, 1, 2, 3, 4, 5, 6, 7,
4798 8, 9, 10, 11, 12, 13, 14, 15,
4799 16, 17, 18, 19, 20, 21, 22, 23,
4800 24, 25, 26, 27, 28, 29, 30, 31,
4801 32, 33, 34, 35, 36, 37, 38, 39,
4802 40, 41, 42, 43, 44, 45, 46, 47,
4803 48, 49, 50, 51, 52, 53, 54, 55,
4804 56, 57, 58, 59, 60, 61, 62, 63,
4805 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4806 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4807 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4808 'x', 'y', 'z', 91, 92, 93, 94, 95,
4809 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4810 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4811 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4812 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4813 128, 129, 130, 131, 132, 133, 134, 135,
4814 136, 137, 138, 139, 140, 141, 142, 143,
4815 144, 145, 146, 147, 148, 149, 150, 151,
4816 152, 153, 154, 155, 156, 157, 158, 159,
4817 160, 161, 162, 163, 164, 165, 166, 167,
4818 168, 169, 170, 171, 172, 173, 174, 175,
4819 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4820 184, 185, 186, 187, 188, 189, 190, 191,
4821 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4822 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4823 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4824 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4825 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4826 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4827 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4828 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4829 255 /* y with diaeresis */
4832 /* If these tables are accessed through ebcdic, the access will be converted to
4834 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4835 0, 1, 2, 3, 4, 5, 6, 7,
4836 8, 9, 10, 11, 12, 13, 14, 15,
4837 16, 17, 18, 19, 20, 21, 22, 23,
4838 24, 25, 26, 27, 28, 29, 30, 31,
4839 32, 33, 34, 35, 36, 37, 38, 39,
4840 40, 41, 42, 43, 44, 45, 46, 47,
4841 48, 49, 50, 51, 52, 53, 54, 55,
4842 56, 57, 58, 59, 60, 61, 62, 63,
4843 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4844 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4845 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4846 'x', 'y', 'z', 91, 92, 93, 94, 95,
4847 96, 97, 98, 99, 100, 101, 102, 103,
4848 104, 105, 106, 107, 108, 109, 110, 111,
4849 112, 113, 114, 115, 116, 117, 118, 119,
4850 120, 121, 122, 123, 124, 125, 126, 127,
4851 128, 129, 130, 131, 132, 133, 134, 135,
4852 136, 137, 138, 139, 140, 141, 142, 143,
4853 144, 145, 146, 147, 148, 149, 150, 151,
4854 152, 153, 154, 155, 156, 157, 158, 159,
4855 160, 161, 162, 163, 164, 165, 166, 167,
4856 168, 169, 170, 171, 172, 173, 174, 175,
4857 176, 177, 178, 179, 180, 181, 182, 183,
4858 184, 185, 186, 187, 188, 189, 190, 191,
4859 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4860 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4861 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4862 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4863 224, 225, 226, 227, 228, 229, 230, 231,
4864 232, 233, 234, 235, 236, 237, 238, 239,
4865 240, 241, 242, 243, 244, 245, 246, 247,
4866 248, 249, 250, 251, 252, 253, 254, 255
4869 /* upper and title case of latin1 characters, modified so that the three tricky
4870 * ones are mapped to 255 (which is one of the three) */
4871 EXTCONST unsigned char PL_mod_latin1_uc[] = {
4872 0, 1, 2, 3, 4, 5, 6, 7,
4873 8, 9, 10, 11, 12, 13, 14, 15,
4874 16, 17, 18, 19, 20, 21, 22, 23,
4875 24, 25, 26, 27, 28, 29, 30, 31,
4876 32, 33, 34, 35, 36, 37, 38, 39,
4877 40, 41, 42, 43, 44, 45, 46, 47,
4878 48, 49, 50, 51, 52, 53, 54, 55,
4879 56, 57, 58, 59, 60, 61, 62, 63,
4880 64, 65, 66, 67, 68, 69, 70, 71,
4881 72, 73, 74, 75, 76, 77, 78, 79,
4882 80, 81, 82, 83, 84, 85, 86, 87,
4883 88, 89, 90, 91, 92, 93, 94, 95,
4884 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4885 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4886 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4887 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4888 128, 129, 130, 131, 132, 133, 134, 135,
4889 136, 137, 138, 139, 140, 141, 142, 143,
4890 144, 145, 146, 147, 148, 149, 150, 151,
4891 152, 153, 154, 155, 156, 157, 158, 159,
4892 160, 161, 162, 163, 164, 165, 166, 167,
4893 168, 169, 170, 171, 172, 173, 174, 175,
4894 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4895 184, 185, 186, 187, 188, 189, 190, 191,
4896 192, 193, 194, 195, 196, 197, 198, 199,
4897 200, 201, 202, 203, 204, 205, 206, 207,
4898 208, 209, 210, 211, 212, 213, 214, 215,
4899 216, 217, 218, 219, 220, 221, 222,
4900 # if UNICODE_MAJOR_VERSION > 2 \
4901 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4902 && UNICODE_DOT_DOT_VERSION >= 8)
4904 # else /* uc(sharp s) is 'sharp s' itself in early unicode */
4907 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4908 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4909 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4910 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4912 # endif /* !EBCDIC, but still in DOINIT */
4913 #else /* ! DOINIT */
4915 EXTCONST unsigned char PL_fold[];
4916 EXTCONST unsigned char PL_fold_latin1[];
4917 EXTCONST unsigned char PL_mod_latin1_uc[];
4918 EXTCONST unsigned char PL_latin1_lc[];
4919 EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
4923 /* Although only used for debugging, these constants must be available in
4924 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4925 * which has DEBUGGING enabled always */
4927 EXTCONST char* const PL_block_type[] = {
4943 EXTCONST char* PL_block_type[];
4946 /* These are all the compile time options that affect binary compatibility.
4947 Other compile time options that are binary compatible are in perl.c
4948 (in S_Internals_V()). Both are combined for the output of perl -V
4949 However, this string will be embedded in any shared perl library, which will
4950 allow us add a comparison check in perlmain.c in the near future. */
4952 EXTCONST char PL_bincompat_options[] =
4953 # ifdef DEBUG_LEAKING_SCALARS
4954 " DEBUG_LEAKING_SCALARS"
4956 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4957 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4962 # ifdef HAVE_INTERP_INTERN
4963 " HAVE_INTERP_INTERN"
4965 # ifdef MULTIPLICITY
4971 # ifdef PERLIO_LAYERS
4974 # ifdef PERL_DEBUG_READONLY_COW
4975 " PERL_DEBUG_READONLY_COW"
4977 # ifdef PERL_DEBUG_READONLY_OPS
4978 " PERL_DEBUG_READONLY_OPS"
4980 # ifdef PERL_IMPLICIT_CONTEXT
4981 " PERL_IMPLICIT_CONTEXT"
4983 # ifdef PERL_IMPLICIT_SYS
4984 " PERL_IMPLICIT_SYS"
4992 # ifdef PERL_SAWAMPERSAND
4993 " PERL_SAWAMPERSAND"
4995 # ifdef PERL_TRACK_MEMPOOL
4996 " PERL_TRACK_MEMPOOL"
4998 # ifdef PERL_USES_PL_PIDSTATUS
4999 " PERL_USES_PL_PIDSTATUS"
5001 # ifdef USE_64_BIT_ALL
5004 # ifdef USE_64_BIT_INT
5010 # ifdef USE_ITHREADS
5013 # ifdef USE_LARGE_FILES
5016 # ifdef USE_LOCALE_COLLATE
5017 " USE_LOCALE_COLLATE"
5019 # ifdef USE_LOCALE_NUMERIC
5020 " USE_LOCALE_NUMERIC"
5022 # ifdef USE_LOCALE_TIME
5025 # ifdef USE_LONG_DOUBLE
5031 # ifdef USE_QUADMATH
5034 # ifdef USE_REENTRANT_API
5035 " USE_REENTRANT_API"
5040 # ifdef VMS_DO_SOCKETS
5043 # ifdef VMS_SHORTEN_LONG_SYMBOLS
5044 " VMS_SHORTEN_LONG_SYMBOLS"
5046 # ifdef VMS_WE_ARE_CASE_SENSITIVE
5047 " VMS_SYMBOL_CASE_AS_IS"
5051 EXTCONST char PL_bincompat_options[];
5054 #ifndef PERL_SET_PHASE
5055 # define PERL_SET_PHASE(new_phase) \
5056 PERL_DTRACE_PROBE_PHASE(new_phase); \
5057 PL_phase = new_phase;
5060 /* The interpreter phases. If these ever change, PL_phase_names right below will
5061 * need to be updated accordingly. */
5063 PERL_PHASE_CONSTRUCT = 0,
5064 PERL_PHASE_START = 1,
5065 PERL_PHASE_CHECK = 2,
5066 PERL_PHASE_INIT = 3,
5069 PERL_PHASE_DESTRUCT = 6
5073 EXTCONST char *const PL_phase_names[] = {
5083 EXTCONST char *const PL_phase_names[];
5087 /* Do not use this macro. It only exists for extensions that rely on PL_dirty
5088 * instead of using the newer PL_phase, which provides everything PL_dirty
5089 * provided, and more. */
5090 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
5092 # define PL_amagic_generation PL_na
5093 # define PL_encoding ((SV *)NULL)
5094 #endif /* !PERL_CORE */
5096 #define PL_hints PL_compiling.cop_hints
5097 #define PL_maxo MAXO
5101 /*****************************************************************************/
5102 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
5103 /*****************************************************************************/
5104 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
5107 /* LynxOS defines these in scsi.h which is included via ioctl.h */
5116 #define LEX_NOTPARSING 11 /* borrowed from toke.c */
5124 XATTRBLOCK, /* next token should be an attribute or block */
5125 XATTRTERM, /* next token should be an attribute, or block in a term */
5129 XTERMORDORDOR /* evil hack */
5130 /* update exp_name[] in toke.c if adding to this enum */
5133 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
5135 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5136 special and there is no need for HINT_PRIVATE_MASK for COPs
5137 However, bitops store HINT_INTEGER in their op_private.
5139 NOTE: The typical module using these has the bit value hard-coded, so don't
5140 blindly change the values of these.
5142 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5143 is for "use locale 'FOO'" which excludes some categories. It requires going
5144 to %^H to find out which are in and which are out. This could be extended
5145 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5147 #define HINT_INTEGER 0x00000001 /* integer pragma */
5148 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5149 #define HINT_LOCALE 0x00000004 /* locale pragma */
5150 #define HINT_BYTES 0x00000008 /* bytes pragma */
5151 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
5153 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5154 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5155 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
5157 #define HINT_BLOCK_SCOPE 0x00000100
5158 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5159 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */
5160 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
5162 /* The HINT_NEW_* constants are used by the overload pragma */
5163 #define HINT_NEW_INTEGER 0x00001000
5164 #define HINT_NEW_FLOAT 0x00002000
5165 #define HINT_NEW_BINARY 0x00004000
5166 #define HINT_NEW_STRING 0x00008000
5167 #define HINT_NEW_RE 0x00010000
5168 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
5169 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5170 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
5172 #define HINT_RE_TAINT 0x00100000 /* re pragma */
5173 #define HINT_RE_EVAL 0x00200000 /* re pragma */
5175 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5176 #define HINT_UTF8 0x00800000 /* utf8 pragma */
5178 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5180 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5182 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5184 /* Note: Used for HINT_M_VMSISH_*,
5185 currently defined by vms/vmsish.h:
5190 /* The following are stored in $^H{sort}, not in PL_hints */
5191 #define HINT_SORT_STABLE 0x00000100 /* sort styles */
5192 #define HINT_SORT_UNSTABLE 0x00000200
5194 /* flags for PL_sawampersand */
5196 #define SAWAMPERSAND_LEFT 1 /* saw $` */
5197 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5198 #define SAWAMPERSAND_RIGHT 4 /* saw $' */
5200 #ifndef PERL_SAWAMPERSAND
5201 # define PL_sawampersand \
5202 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5205 /* Used for debugvar magic */
5206 #define DBVARMG_SINGLE 0
5207 #define DBVARMG_TRACE 1
5208 #define DBVARMG_SIGNAL 2
5209 #define DBVARMG_COUNT 3
5211 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5212 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5213 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5215 /* Various states of the input record separator SV (rs) */
5216 #define RsSNARF(sv) (! SvOK(sv))
5217 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5218 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5219 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
5221 /* A struct for keeping various DEBUGGING related stuff,
5222 * neatly packed. Currently only scratch variables for
5223 * constructing debug output are included. Needed always,
5224 * not just when DEBUGGING, though, because of the re extension. c*/
5225 struct perl_debug_pad {
5229 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
5230 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5231 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5234 /* Enable variables which are pointers to functions */
5235 typedef void (*peep_t)(pTHX_ OP* o);
5236 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5237 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
5238 char* strend, char* strbeg, I32 minend,
5239 SV* screamer, void* data, U32 flags);
5240 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
5241 char *strpos, char *strend,
5243 re_scream_pos_data *d);
5244 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5245 typedef void (*regfree_t) (pTHX_ struct regexp* r);
5246 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
5247 typedef I32 (*re_fold_t)(const char *, char const *, I32);
5249 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
5250 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
5251 typedef void (*SVFUNC_t) (pTHX_ SV* const);
5252 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
5253 typedef void (*XSINIT_t) (pTHX);
5254 typedef void (*ATEXIT_t) (pTHX_ void*);
5255 typedef void (*XSUBADDR_t) (pTHX_ CV *);
5257 typedef OP* (*Perl_ppaddr_t)(pTHX);
5258 typedef OP* (*Perl_check_t) (pTHX_ OP*);
5259 typedef void(*Perl_ophook_t)(pTHX_ OP*);
5260 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
5261 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
5263 typedef void(*globhook_t)(pTHX);
5265 #define KEYWORD_PLUGIN_DECLINE 0
5266 #define KEYWORD_PLUGIN_STMT 1
5267 #define KEYWORD_PLUGIN_EXPR 2
5269 /* Interpreter exitlist entry */
5270 typedef struct exitlistentry {
5271 void (*fn) (pTHX_ void*);
5273 } PerlExitListEntry;
5275 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5276 /* These have to be before perlvars.h */
5277 #if !defined(HAS_SIGACTION) && defined(VMS)
5278 # define FAKE_PERSISTENT_SIGNAL_HANDLERS
5280 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5281 #if defined(KILL_BY_SIGPRC)
5282 # define FAKE_DEFAULT_SIGNAL_HANDLERS
5285 #if !defined(MULTIPLICITY)
5287 struct interpreter {
5293 /* If we have multiple interpreters define a struct
5294 holding variables which must be per-interpreter
5295 If we don't have threads anything that would have
5296 be per-thread is per-interpreter.
5299 /* Set up PERLVAR macros for populating structs */
5300 # define PERLVAR(prefix,var,type) type prefix##var;
5302 /* 'var' is an array of length 'n' */
5303 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5305 /* initialize 'var' to init' */
5306 # define PERLVARI(prefix,var,type,init) type prefix##var;
5308 /* like PERLVARI, but make 'var' a const */
5309 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5311 struct interpreter {
5312 # include "intrpvar.h"
5315 EXTCONST U16 PL_interp_size
5316 INIT(sizeof(struct interpreter));
5318 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5319 STRUCT_OFFSET(struct interpreter, member) + \
5320 sizeof(((struct interpreter*)0)->member)
5322 /* This will be useful for subsequent releases, because this has to be the
5323 same in your libperl as in main(), else you have a mismatch and must abort.
5325 EXTCONST U16 PL_interp_size_5_18_0
5326 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
5329 /* Done with PERLVAR macros for now ... */
5335 #endif /* MULTIPLICITY */
5337 struct tempsym; /* defined in pp_pack.c */
5344 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5345 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
5348 # include "malloc_ctl.h"
5352 * This provides a layer of functions and macros to ensure extensions will
5353 * get to use the same RTL functions as the core.
5356 # include "win32iop.h"
5362 /* this has structure inits, so it cannot be included before here */
5365 /* The following must follow proto.h as #defines mess up syntax */
5367 #if !defined(PERL_FOR_X2P)
5368 # include "embedvar.h"
5371 /* Now include all the 'global' variables
5372 * If we don't have threads or multiple interpreters
5373 * these include variables that would have been their struct-s
5376 #define PERLVAR(prefix,var,type) EXT type PL_##var;
5377 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5378 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5379 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
5381 #if !defined(MULTIPLICITY)
5383 # include "intrpvar.h"
5385 # define PL_sv_yes (PL_sv_immortals[0])
5386 # define PL_sv_undef (PL_sv_immortals[1])
5387 # define PL_sv_no (PL_sv_immortals[2])
5388 # define PL_sv_zero (PL_sv_immortals[3])
5392 /* All core uses now exterminated. Ensure no zombies can return: */
5396 /* Now all the config stuff is setup we can include embed.h
5397 In particular, need the relevant *ish file included already, as it may
5398 define HAVE_INTERP_INTERN */
5403 # include "perlvars.h"
5412 #if !defined(MULTIPLICITY)
5413 /* Set up PERLVAR macros for populating structs */
5414 # define PERLVAR(prefix,var,type) type prefix##var;
5415 /* 'var' is an array of length 'n' */
5416 # define PERLVARA(prefix,var,n,type) type prefix##var[n];
5417 /* initialize 'var' to init' */
5418 # define PERLVARI(prefix,var,type,init) type prefix##var;
5419 /* like PERLVARI, but make 'var' a const */
5420 # define PERLVARIC(prefix,var,type,init) type prefix##var;
5422 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5423 struct PerlHandShakeInterpreter {
5424 # include "intrpvar.h"
5434 /* dummy variables that hold pointers to both runops functions, thus forcing
5435 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5437 EXTCONST runops_proc_t PL_runops_std
5438 INIT(Perl_runops_standard);
5439 EXTCONST runops_proc_t PL_runops_dbg
5440 INIT(Perl_runops_debug);
5442 #define EXT_MGVTBL EXTCONST MGVTBL
5444 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
5445 #define PERL_MAGIC_VALUE_MAGIC 0x80
5446 #define PERL_MAGIC_VTABLE_MASK 0x3F
5447 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5448 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
5449 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5450 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5452 #include "mg_vtable.h"
5455 EXTCONST U8 PL_magic_data[256] =
5457 # include "umg_data.h"
5459 # include "mg_data.h"
5463 EXTCONST U8 PL_magic_data[256];
5467 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
5469 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5471 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
5473 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
5475 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
5477 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
5479 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
5483 EXTCONST bool PL_valid_types_IVX[];
5484 EXTCONST bool PL_valid_types_NVX[];
5485 EXTCONST bool PL_valid_types_PVX[];
5486 EXTCONST bool PL_valid_types_RV[];
5487 EXTCONST bool PL_valid_types_IV_set[];
5488 EXTCONST bool PL_valid_types_NV_set[];
5492 /* In C99 we could use designated (named field) union initializers.
5493 * In C89 we need to initialize the member declared first.
5494 * In C++ we need extern C initializers.
5496 * With the U8_NV version you will want to have inner braces,
5497 * while with the NV_U8 use just the NV. */
5499 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5500 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5502 /* if these never got defined, they need defaults */
5503 #ifndef PERL_SET_CONTEXT
5504 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5507 #ifndef PERL_GET_CONTEXT
5508 # define PERL_GET_CONTEXT PERL_GET_INTERP
5511 #ifndef PERL_GET_THX
5512 # define PERL_GET_THX ((void*)NULL)
5515 #ifndef PERL_SET_THX
5516 # define PERL_SET_THX(t) NOOP
5521 /* The tables below are adapted from
5522 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright
5525 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
5527 Permission is hereby granted, free of charge, to any person obtaining a copy of
5528 this software and associated documentation files (the "Software"), to deal in
5529 the Software without restriction, including without limitation the rights to
5530 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
5531 of the Software, and to permit persons to whom the Software is furnished to do
5532 so, subject to the following conditions:
5534 The above copyright notice and this permission notice shall be included in all
5535 copies or substantial portions of the Software.
5537 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
5538 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
5539 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
5540 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
5541 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
5542 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
5548 # if 0 /* This is the original table given in
5549 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */
5550 static U8 utf8d_C9[] = {
5551 /* The first part of the table maps bytes to character classes that
5552 * to reduce the size of the transition table and create bitmasks. */
5553 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/
5554 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/
5555 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*/
5556 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*/
5557 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*/
5558 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*/
5559 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*/
5560 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*/
5562 /* The second part is a transition table that maps a combination
5563 * of a state of the automaton and a character class to a state. */
5564 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
5565 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
5566 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
5567 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
5568 12,36,12,12,12,12,12,12,12,12,12,12
5573 /* This is a version of the above table customized for Perl that doesn't
5574 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit
5575 * machines). The classes have been renumbered so that the patterns are more
5576 * evident in the table. The class numbers for start bytes are constrained so
5577 * that they can be used as a shift count for masking off the leading one bits.
5578 * It would make the code simpler if start byte FF could also be handled, but
5579 * doing so would mean adding nodes for each of continuation bytes 6-12
5580 * remaining, and two more nodes for overlong detection (a total of 9), and
5581 * there is room only for 4 more nodes unless we make the array U16 instead of
5586 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC
5588 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC
5589 * 84-87 9 Not legal immediately after start bytes E0 F0 F8
5590 * 88-8F 10 Not legal immediately after start bytes E0 F0
5591 * 90-9F 11 Not legal immediately after start byte E0
5603 * FE 17 (or 1 on 32-bit machines, since it overflows)
5607 EXTCONST U8 PL_extended_utf8_dfa_tab[] = {
5608 /* The first part of the table maps bytes to character classes to reduce
5609 * the size of the transition table and create bitmasks. */
5610 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5611 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5612 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5613 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5614 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5615 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5616 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5617 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5618 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/
5619 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/
5620 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/
5621 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/
5622 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5623 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5624 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/
5625 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/
5633 /* The second part is a transition table that maps a combination
5634 * of a state of the automaton and a character class to a new state, called a
5635 * node. The nodes are:
5636 * N0 The initial state, and final accepting one.
5637 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5638 * immediately when the start byte indicates a two-byte sequence
5639 * N2 Any two continuation bytes left.
5640 * N3 Any three continuation bytes left.
5641 * N4 Any four continuation bytes left.
5642 * N5 Any five continuation bytes left.
5643 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5644 * the other continuations transition to N1
5645 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5646 * the other continuations transition to N2
5647 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong);
5648 * the other continuations transition to N3
5649 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong);
5650 * the other continuations transition to N4
5651 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong);
5652 * the other continuations transition to N5
5653 * 1 Reject. All transitions not mentioned above (except the single
5654 * byte ones (as they are always legal) are to this state.
5657 # define NUM_CLASSES 18
5659 # define N1 ((N0) + NUM_CLASSES)
5660 # define N2 ((N1) + NUM_CLASSES)
5661 # define N3 ((N2) + NUM_CLASSES)
5662 # define N4 ((N3) + NUM_CLASSES)
5663 # define N5 ((N4) + NUM_CLASSES)
5664 # define N6 ((N5) + NUM_CLASSES)
5665 # define N7 ((N6) + NUM_CLASSES)
5666 # define N8 ((N7) + NUM_CLASSES)
5667 # define N9 ((N8) + NUM_CLASSES)
5668 # define N10 ((N9) + NUM_CLASSES)
5670 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */
5671 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10,
5672 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
5673 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1,
5674 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1,
5675 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1,
5676 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5678 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1,
5679 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1,
5680 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1,
5681 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1,
5682 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1,
5685 /* And below is a version of the above table that accepts only strict UTF-8.
5686 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input
5687 * passes this dfa, it will be for a well-formed, non-problematic code point
5688 * that can be returned immediately.
5690 * The "Implementation details" portion of
5691 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how
5692 * the first portion of the table maps each possible byte into a character
5693 * class. And that the classes for those bytes which are start bytes have been
5694 * carefully chosen so they serve as well to be used as a shift value to mask
5695 * off the leading 1 bits of the start byte. Unfortunately the addition of
5696 * being able to distinguish non-characters makes this not fully work. This is
5697 * because, now, the start bytes E1-EF have to be broken into 3 classes instead
5699 * 1) ED because it could be a surrogate
5700 * 2) EF because it could be a non-character
5701 * 3) the rest, which can never evaluate to a problematic code point.
5703 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a
5704 * shift (and hence class number) of either 3 or 4 to get a mask that works.
5705 * But that only allows two categories, and we need three. khw made the
5706 * decision to therefore treat the ED start byte as an error, so that the dfa
5707 * drops out immediately for that. In the dfa, classes 3 and 4 are used to
5708 * distinguish EF vs the rest. Then special code is used to deal with ED,
5709 * that's executed only when the dfa drops out. The code points started by ED
5710 * are half surrogates, and half hangul syllables. This means that 2048 of
5711 * the hangul syllables (about 18%) take longer than all other non-problematic
5712 * code points to handle.
5714 * The changes to handle non-characters requires the addition of states and
5715 * classes to the dfa. (See the section on "Mapping bytes to character
5716 * classes" in the linked-to document for further explanation of the original
5740 * F1-F3 6 (6 bits can be stripped)
5741 * F4 5 (only 5 can be stripped)
5745 EXTCONST U8 PL_strict_utf8_dfa_tab[] = {
5746 /* The first part of the table maps bytes to character classes to reduce
5747 * the size of the transition table and create bitmasks. */
5748 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5749 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5750 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5751 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5752 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5753 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5754 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5755 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5756 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/
5757 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/
5758 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/
5759 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/
5760 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5761 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5762 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/
5763 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5765 /* The second part is a transition table that maps a combination
5766 * of a state of the automaton and a character class to a new state, called a
5767 * node. The nodes are:
5768 * N0 The initial state, and final accepting one.
5769 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5770 * immediately when the start byte indicates a two-byte sequence
5771 * N2 Any two continuation bytes left.
5772 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5773 * the other continuations transition to state N1
5774 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9;
5775 * the other continuations transitions to N1
5776 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5777 * [9AB]F transition to N10; the other continuations to N2.
5778 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition
5779 * to N10; the other continuations to N2.
5780 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5781 * (non-unicode); 8F transitions to N10; the other continuations to N2
5782 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal
5783 * (non-characters); the other continuations transition to N0.
5784 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal
5785 * (non-characters); the other continuations transition to N0.
5786 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F.
5787 * Continuation byte BF transitions to N11; the other continuations to
5789 * N11 Initial sequence is the two bytes given in N10 followed by BF.
5790 * Continuation bytes BE and BF are illegal (non-characters); the other
5791 * continuations transition to N0.
5792 * 1 Reject. All transitions not mentioned above (except the single
5793 * byte ones (as they are always legal) are to this state.
5807 # define NUM_CLASSES 19
5809 # define N1 ((N0) + NUM_CLASSES)
5810 # define N2 ((N1) + NUM_CLASSES)
5811 # define N3 ((N2) + NUM_CLASSES)
5812 # define N4 ((N3) + NUM_CLASSES)
5813 # define N5 ((N4) + NUM_CLASSES)
5814 # define N6 ((N5) + NUM_CLASSES)
5815 # define N7 ((N6) + NUM_CLASSES)
5816 # define N8 ((N7) + NUM_CLASSES)
5817 # define N9 ((N8) + NUM_CLASSES)
5818 # define N10 ((N9) + NUM_CLASSES)
5819 # define N11 ((N10) + NUM_CLASSES)
5821 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */
5822 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
5823 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5824 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1,
5826 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1,
5827 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9,
5828 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10,
5829 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10,
5830 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1,
5831 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0,
5832 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5833 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11,
5834 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
5837 /* And below is yet another version of the above tables that accepts only UTF-8
5838 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but
5839 * it allows non-characters. This is isomorphic to the original table
5840 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
5854 * F1-F3 6 (6 bits can be stripped)
5855 * F4 5 (only 5 can be stripped)
5859 EXTCONST U8 PL_c9_utf8_dfa_tab[] = {
5860 /* The first part of the table maps bytes to character classes to reduce
5861 * the size of the transition table and create bitmasks. */
5862 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/
5863 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/
5864 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/
5865 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/
5866 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/
5867 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/
5868 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/
5869 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/
5870 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/
5871 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/
5872 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/
5873 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/
5874 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/
5875 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/
5876 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/
5877 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/
5879 /* The second part is a transition table that maps a combination
5880 * of a state of the automaton and a character class to a new state, called a
5881 * node. The nodes are:
5882 * N0 The initial state, and final accepting one.
5883 * N1 Any one continuation byte (80-BF) left. This is transitioned to
5884 * immediately when the start byte indicates a two-byte sequence
5885 * N2 Any two continuation bytes left.
5886 * N3 Any three continuation bytes left.
5887 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong);
5888 * the other continuations transition to state N1
5889 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates,
5890 * so are illegal. The other continuations transition to state N1.
5891 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong);
5892 * the other continuations transition to N2
5893 * N7 Start byte is F4. Continuation bytes 90-BF are illegal
5894 * (non-unicode); the other continuations transition to N2
5895 * 1 Reject. All transitions not mentioned above (except the single
5896 * byte ones (as they are always legal) are to this state.
5908 # define NUM_CLASSES 12
5910 # define N1 ((N0) + NUM_CLASSES)
5911 # define N2 ((N1) + NUM_CLASSES)
5912 # define N3 ((N2) + NUM_CLASSES)
5913 # define N4 ((N3) + NUM_CLASSES)
5914 # define N5 ((N4) + NUM_CLASSES)
5915 # define N6 ((N5) + NUM_CLASSES)
5916 # define N7 ((N6) + NUM_CLASSES)
5918 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */
5919 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1,
5920 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0,
5921 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1,
5922 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2,
5924 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1,
5925 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1,
5926 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2,
5927 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1,
5930 # else /* End of is DOINIT */
5932 EXTCONST U8 PL_extended_utf8_dfa_tab[];
5933 EXTCONST U8 PL_strict_utf8_dfa_tab[];
5934 EXTCONST U8 PL_c9_utf8_dfa_tab[];
5937 #endif /* end of isn't EBCDIC */
5939 #ifndef PERL_NO_INLINE_FUNCTIONS
5940 /* Static inline funcs that depend on includes and declarations above.
5941 Some of these reference functions in the perl object files, and some
5942 compilers aren't smart enough to eliminate unused static inline
5943 functions, so including this file in source code can cause link errors
5944 even if the source code uses none of the functions. Hence including these
5945 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5946 (obviously) result in unworkable XS code, but allows simple probing code
5947 to continue to work, because it permits tests to include the perl headers
5948 for definitions without creating a link dependency on the perl library
5949 (which may not exist yet).
5952 # include "inline.h"
5955 #include "overload.h"
5964 CV* table[NofAMmeth];
5966 struct am_table_short {
5972 typedef struct am_table AMT;
5973 typedef struct am_table_short AMTS;
5975 #define AMGfallNEVER 1
5977 #define AMGfallYES 3
5979 #define AMTf_AMAGIC 1
5980 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5981 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5982 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5984 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
5987 * some compilers like to redefine cos et alia as faster
5988 * (and less accurate?) versions called F_cos et cetera (Quidquid
5989 * latine dictum sit, altum viditur.) This trick collides with
5990 * the Perl overloading (amg). The following #defines fool both.
5995 # define F_atan2_amg atan2_amg
5998 # define F_cos_amg cos_amg
6001 # define F_exp_amg exp_amg
6004 # define F_log_amg log_amg
6007 # define F_pow_amg pow_amg
6010 # define F_sin_amg sin_amg
6013 # define F_sqrt_amg sqrt_amg
6015 #endif /* _FASTMATH */
6017 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
6018 PERLDBf_NOOPT | PERLDBf_INTER | \
6019 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
6020 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
6022 /* No _NONAME, _GOTO */
6023 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
6024 #define PERLDBf_LINE 0x02 /* Keep line # */
6025 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
6026 #define PERLDBf_INTER 0x08 /* Preserve more data for
6027 later inspections */
6028 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
6029 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */
6030 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
6031 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
6032 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
6033 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
6034 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
6035 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
6036 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
6038 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
6039 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
6040 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
6041 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
6042 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
6043 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
6044 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
6045 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
6046 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
6047 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
6048 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
6049 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
6050 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
6052 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
6055 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex)
6056 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex)
6057 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex)
6058 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex)
6059 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex)
6060 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex)
6061 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex)
6062 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex)
6064 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP
6065 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP
6066 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP
6067 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP
6068 # define USER_PROP_MUTEX_INIT NOOP
6069 # define USER_PROP_MUTEX_LOCK NOOP
6070 # define USER_PROP_MUTEX_UNLOCK NOOP
6071 # define USER_PROP_MUTEX_TERM NOOP
6074 #ifdef USE_LOCALE /* These locale things are all subject to change */
6076 /* Returns TRUE if the plain locale pragma without a parameter is in effect.
6078 # define IN_LOCALE_RUNTIME (PL_curcop \
6079 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
6081 /* Returns TRUE if either form of the locale pragma is in effect */
6082 # define IN_SOME_LOCALE_FORM_RUNTIME \
6083 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6085 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
6086 # define IN_SOME_LOCALE_FORM_COMPILETIME \
6087 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
6090 =head1 Locale-related functions and macros
6092 =for apidoc Amn|bool|IN_LOCALE
6094 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use
6095 locale>>) is in effect.
6097 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME
6099 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if
6100 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6102 =for apidoc Amn|bool|IN_LOCALE_RUNTIME
6104 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if
6105 the plain locale pragma without a parameter (S<C<use locale>>) is in effect.
6110 # define IN_LOCALE \
6111 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6112 # define IN_SOME_LOCALE_FORM \
6113 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
6114 : IN_SOME_LOCALE_FORM_RUNTIME)
6116 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
6117 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
6119 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
6120 # define IN_LC_PARTIAL_RUNTIME \
6121 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6123 # define IN_LC_COMPILETIME(category) \
6124 ( IN_LC_ALL_COMPILETIME \
6125 || ( IN_LC_PARTIAL_COMPILETIME \
6126 && Perl__is_in_locale_category(aTHX_ TRUE, (category))))
6127 # define IN_LC_RUNTIME(category) \
6128 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
6129 && Perl__is_in_locale_category(aTHX_ FALSE, (category))))
6130 # define IN_LC(category) \
6131 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
6133 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
6135 /* This internal macro should be called from places that operate under
6136 * locale rules. If there is a problem with the current locale that
6137 * hasn't been raised yet, it will output a warning this time. Because
6138 * this will so rarely be true, there is no point to optimize for time;
6139 * instead it makes sense to minimize space used and do all the work in
6140 * the rarely called function */
6141 # ifdef USE_LOCALE_CTYPE
6142 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
6144 if (UNLIKELY(PL_warn_locale)) { \
6145 Perl__warn_problematic_locale(); \
6149 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6153 /* These two internal macros are called when a warning should be raised,
6154 * and will do so if enabled. The first takes a single code point
6155 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
6156 * string, and an end position which it won't try to read past */
6157 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
6159 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6160 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6161 "Wide character (U+%" UVXf ") in %s",\
6162 (UV) cp, OP_DESC(PL_op)); \
6166 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
6167 STMT_START { /* Check if to warn before doing the conversion work */\
6168 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
6169 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \
6170 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
6171 "Wide character (U+%" UVXf ") in %s", \
6173 ? UNICODE_REPLACEMENT \
6179 # endif /* PERL_CORE or PERL_IN_XSUB_RE */
6180 #else /* No locale usage */
6181 # define IN_LOCALE_RUNTIME 0
6182 # define IN_SOME_LOCALE_FORM_RUNTIME 0
6183 # define IN_LOCALE_COMPILETIME 0
6184 # define IN_SOME_LOCALE_FORM_COMPILETIME 0
6185 # define IN_LOCALE 0
6186 # define IN_SOME_LOCALE_FORM 0
6187 # define IN_LC_ALL_COMPILETIME 0
6188 # define IN_LC_ALL_RUNTIME 0
6189 # define IN_LC_PARTIAL_COMPILETIME 0
6190 # define IN_LC_PARTIAL_RUNTIME 0
6191 # define IN_LC_COMPILETIME(category) 0
6192 # define IN_LC_RUNTIME(category) 0
6193 # define IN_LC(category) 0
6194 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
6195 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send)
6196 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c)
6200 /* Locale/thread synchronization macros. These aren't needed if using
6201 * thread-safe locale operations, except if something is broken */
6202 #if defined(USE_LOCALE) \
6203 && defined(USE_ITHREADS) \
6204 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV))
6206 /* We have a locale object holding the 'C' locale for Posix 2008 */
6207 # ifndef USE_POSIX_2008_LOCALE
6208 # define _LOCALE_TERM_POSIX_2008 NOOP
6210 # define _LOCALE_TERM_POSIX_2008 \
6212 if (PL_C_locale_obj) { \
6213 /* Make sure we aren't using the locale \
6214 * space we are about to free */ \
6215 uselocale(LC_GLOBAL_LOCALE); \
6216 freelocale(PL_C_locale_obj); \
6217 PL_C_locale_obj = (locale_t) NULL; \
6222 /* This is used as a generic lock for locale operations. For example this is
6223 * used when calling nl_langinfo() so that another thread won't zap the
6224 * contents of its buffer before it gets saved; and it's called when changing
6225 * the locale of LC_MESSAGES. On some systems the latter can cause the
6226 * nl_langinfo buffer to be zapped under a race condition.
6228 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock
6229 * should be contained entirely within the locked portion of LC_NUMERIC. This
6230 * mutex should be used only in very short sections of code, while
6231 * LC_NUMERIC_LOCK may span more operations. By always following this
6232 * convention, deadlock should be impossible. But if necessary, the two
6233 * mutexes could be combined.
6235 * Actually, the two macros just below with the '_V' suffixes are used in just
6236 * a few places where there is a broken localeconv(), but otherwise things are
6237 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and
6238 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */
6239 # define LOCALE_LOCK_V \
6241 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6242 "%s: %d: locking locale\n", __FILE__, __LINE__)); \
6243 MUTEX_LOCK(&PL_locale_mutex); \
6245 # define LOCALE_UNLOCK_V \
6247 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6248 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \
6249 MUTEX_UNLOCK(&PL_locale_mutex); \
6252 /* On windows, we just need the mutex for LOCALE_LOCK */
6253 # ifdef TS_W32_BROKEN_LOCALECONV
6254 # define LOCALE_LOCK NOOP
6255 # define LOCALE_UNLOCK NOOP
6256 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex);
6257 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex)
6258 # define LC_NUMERIC_LOCK(cond)
6259 # define LC_NUMERIC_UNLOCK
6261 # define LOCALE_LOCK LOCALE_LOCK_V
6262 # define LOCALE_UNLOCK LOCALE_UNLOCK_V
6264 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008)
6266 # define LOCALE_INIT STMT_START { \
6267 MUTEX_INIT(&PL_locale_mutex); \
6268 MUTEX_INIT(&PL_lc_numeric_mutex); \
6271 # define LOCALE_TERM STMT_START { \
6272 MUTEX_DESTROY(&PL_locale_mutex); \
6273 MUTEX_DESTROY(&PL_lc_numeric_mutex); \
6274 _LOCALE_TERM_POSIX_2008; \
6277 /* This mutex is used to create critical sections where we want the
6278 * LC_NUMERIC locale to be locked into either the C (standard) locale, or
6279 * the underlying locale, so that other threads interrupting this one don't
6280 * change it to the wrong state before we've had a chance to complete our
6281 * operation. It can stay locked over an entire printf operation, for
6282 * example. And so is made distinct from the LOCALE_LOCK mutex.
6284 * This simulates kind of a general semaphore. The current thread will
6285 * lock the mutex if the per-thread variable is zero, and then increments
6286 * that variable. Each corresponding UNLOCK decrements the variable until
6287 * it is 0, at which point it actually unlocks the mutex. Since the
6288 * variable is per-thread, there is no race with other threads.
6290 * The single argument is a condition to test for, and if true, to panic,
6291 * as this would be an attempt to complement the LC_NUMERIC state, and
6292 * we're not supposed to because it's locked.
6294 * Clang improperly gives warnings for this, if not silenced:
6295 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks
6297 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \
6298 CLANG_DIAG_IGNORE(-Wthread-safety) \
6300 if (PL_lc_numeric_mutex_depth <= 0) { \
6301 MUTEX_LOCK(&PL_lc_numeric_mutex); \
6302 PL_lc_numeric_mutex_depth = 1; \
6303 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6304 "%s: %d: locking lc_numeric; depth=1\n", \
6305 __FILE__, __LINE__)); \
6308 PL_lc_numeric_mutex_depth++; \
6309 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6310 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \
6311 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6312 if (cond_to_panic_if_already_locked) { \
6313 Perl_croak_nocontext("panic: %s: %d: Trying to change" \
6314 " LC_NUMERIC incompatibly", \
6315 __FILE__, __LINE__); \
6320 # define LC_NUMERIC_UNLOCK \
6322 if (PL_lc_numeric_mutex_depth <= 1) { \
6323 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \
6324 PL_lc_numeric_mutex_depth = 0; \
6325 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6326 "%s: %d: unlocking lc_numeric; depth=0\n", \
6327 __FILE__, __LINE__)); \
6330 PL_lc_numeric_mutex_depth--; \
6331 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6332 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\
6333 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \
6338 # endif /* End of needs locking LC_NUMERIC */
6339 #else /* Below is no locale sync needed */
6340 # define LOCALE_INIT
6341 # define LOCALE_LOCK
6342 # define LOCALE_LOCK_V
6343 # define LOCALE_UNLOCK
6344 # define LOCALE_UNLOCK_V
6345 # define LC_NUMERIC_LOCK(cond)
6346 # define LC_NUMERIC_UNLOCK
6347 # define LOCALE_TERM
6350 #ifdef USE_LOCALE_NUMERIC
6352 /* These macros are for toggling between the underlying locale (UNDERLYING or
6353 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C
6354 * locale if the underlying locale is indistinguishable from it in the numeric
6355 * operations used by Perl, namely the decimal point, and even the thousands
6358 =head1 Locale-related functions and macros
6360 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6362 This macro should be used as a statement. It declares a private variable
6363 (whose name begins with an underscore) that is needed by the other macros in
6364 this section. Failing to include this correctly should lead to a syntax error.
6365 For compatibility with C89 C compilers it should be placed in a block before
6366 any executable statements.
6368 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
6370 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the
6371 locale for category C<LC_NUMERIC> to be what perl thinks is the current
6372 underlying locale. (The perl interpreter could be wrong about what the
6373 underlying locale actually is if some C or XS code has called the C library
6374 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
6375 this macro will update perl's records.)
6377 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6378 declare at compile time a private variable used by this macro. This macro
6379 should be called as a single statement, not an expression, but with an empty
6380 argument list, like this:
6383 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6385 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
6387 RESTORE_LC_NUMERIC();
6391 The private variable is used to save the current locale state, so
6392 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
6394 On threaded perls not operating with thread-safe functionality, this macro uses
6395 a mutex to force a critical section. Therefore the matching RESTORE should be
6396 close by, and guaranteed to be called.
6398 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
6400 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware.
6401 This locale category is generally kept set to a locale where the decimal radix
6402 character is a dot, and the separator between groups of digits is empty. This
6403 is because most XS code that reads floating point numbers is expecting them to
6406 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
6407 aware of locale if the call to the XS or C code from the Perl program is
6408 from within the scope of a S<C<use locale>>; or to ignore locale if the call is
6409 instead from outside such scope.
6411 This macro is the start of wrapping the C or XS code; the wrap ending is done
6412 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
6413 the state can be changed that will adversely affect other XS code.
6415 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6416 declare at compile time a private variable used by this macro. This macro
6417 should be called as a single statement, not an expression, but with an empty
6418 argument list, like this:
6421 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6423 STORE_LC_NUMERIC_SET_TO_NEEDED();
6425 RESTORE_LC_NUMERIC();
6429 On threaded perls not operating with thread-safe functionality, this macro uses
6430 a mutex to force a critical section. Therefore the matching RESTORE should be
6431 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED>
6432 for a more contained way to ensure that.
6434 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric
6436 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6437 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6438 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6439 cannot have changed since the precalculation.
6441 =for apidoc Am|void|RESTORE_LC_NUMERIC
6443 This is used in conjunction with one of the macros
6444 L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6445 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the
6446 C<LC_NUMERIC> state.
6448 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6449 declare at compile time a private variable used by this macro and the two
6450 C<STORE> ones. This macro should be called as a single statement, not an
6451 expression, but with an empty argument list, like this:
6454 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6456 RESTORE_LC_NUMERIC();
6460 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block
6462 This macro invokes the supplied statement or block within the context
6463 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair
6466 WITH_LC_NUMERIC_SET_TO_NEEDED(
6467 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis)
6473 #ifdef USE_LOCALE_NUMERIC
6474 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6475 STORE_LC_NUMERIC_SET_TO_NEEDED();
6477 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis);
6478 #ifdef USE_LOCALE_NUMERIC
6479 RESTORE_LC_NUMERIC();
6483 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block
6485 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided
6486 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's
6487 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints>
6488 cannot have changed since the precalculation.
6494 /* If the underlying numeric locale has a non-dot decimal point or has a
6495 * non-empty floating point thousands separator, the current locale is instead
6496 * generally kept in the C locale instead of that underlying locale. The
6497 * current status is known by looking at two words. One is non-zero if the
6498 * current numeric locale is the standard C/POSIX one or is indistinguishable
6499 * from C. The other is non-zero if the current locale is the underlying
6500 * locale. Both can be non-zero if, as often happens, the underlying locale is
6501 * C or indistinguishable from it.
6503 * khw believes the reason for the variables instead of the bits in a single
6504 * word is to avoid having to have masking instructions. */
6506 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
6508 /* We can lock the category to stay in the C locale, making requests to the
6509 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6511 # define _NOT_IN_NUMERIC_UNDERLYING \
6512 (! PL_numeric_underlying && PL_numeric_standard < 2)
6514 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6515 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6517 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \
6519 bool _in_lc_numeric = (in); \
6521 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \
6522 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \
6523 if (_in_lc_numeric) { \
6524 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6525 Perl_set_numeric_underlying(aTHX); \
6526 _restore_LC_NUMERIC_function \
6527 = &Perl_set_numeric_standard; \
6531 if (_NOT_IN_NUMERIC_STANDARD) { \
6532 Perl_set_numeric_standard(aTHX); \
6533 _restore_LC_NUMERIC_function \
6534 = &Perl_set_numeric_underlying; \
6539 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6540 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC))
6542 # define RESTORE_LC_NUMERIC() \
6544 if (_restore_LC_NUMERIC_function) { \
6545 _restore_LC_NUMERIC_function(aTHX); \
6547 LC_NUMERIC_UNLOCK; \
6550 /* The next two macros set unconditionally. These should be rarely used, and
6551 * only after being sure that this is what is needed */
6552 # define SET_NUMERIC_STANDARD() \
6554 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6555 "%s: %d: lc_numeric standard=%d\n", \
6556 __FILE__, __LINE__, PL_numeric_standard)); \
6557 Perl_set_numeric_standard(aTHX); \
6558 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6559 "%s: %d: lc_numeric standard=%d\n", \
6560 __FILE__, __LINE__, PL_numeric_standard)); \
6563 # define SET_NUMERIC_UNDERLYING() \
6565 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6566 Perl_set_numeric_underlying(aTHX); \
6570 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6571 * the RESTORE_foo ones called to switch back, but only if need be */
6572 # define STORE_LC_NUMERIC_SET_STANDARD() \
6574 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \
6575 if (_NOT_IN_NUMERIC_STANDARD) { \
6576 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\
6577 Perl_set_numeric_standard(aTHX); \
6581 /* Rarely, we want to change to the underlying locale even outside of 'use
6582 * locale'. This is principally in the POSIX:: functions */
6583 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6585 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \
6586 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6587 Perl_set_numeric_underlying(aTHX); \
6588 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6592 /* Lock/unlock to the C locale until unlock is called. This needs to be
6593 * recursively callable. [perl #128207] */
6594 # define LOCK_LC_NUMERIC_STANDARD() \
6596 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6597 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \
6598 __FILE__, __LINE__, PL_numeric_standard + 1)); \
6599 __ASSERT_(PL_numeric_standard) \
6600 PL_numeric_standard++; \
6603 # define UNLOCK_LC_NUMERIC_STANDARD() \
6605 if (PL_numeric_standard > 1) { \
6606 PL_numeric_standard--; \
6611 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \
6612 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \
6613 __FILE__, __LINE__, PL_numeric_standard)); \
6616 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6618 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \
6619 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \
6621 RESTORE_LC_NUMERIC(); \
6624 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6625 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block)
6627 #else /* !USE_LOCALE_NUMERIC */
6629 # define SET_NUMERIC_STANDARD()
6630 # define SET_NUMERIC_UNDERLYING()
6631 # define IS_NUMERIC_RADIX(a, b) (0)
6632 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP
6633 # define STORE_LC_NUMERIC_SET_STANDARD()
6634 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6635 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric)
6636 # define STORE_LC_NUMERIC_SET_TO_NEEDED()
6637 # define RESTORE_LC_NUMERIC()
6638 # define LOCK_LC_NUMERIC_STANDARD()
6639 # define UNLOCK_LC_NUMERIC_STANDARD()
6640 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \
6641 STMT_START { block; } STMT_END
6642 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \
6643 STMT_START { block; } STMT_END
6645 #endif /* !USE_LOCALE_NUMERIC */
6647 #define Atof my_atof
6651 =head1 Numeric functions
6653 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e
6655 This is a synonym for L</my_strtod>.
6657 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base
6659 Platform and configuration independent C<strtol>. This expands to the
6660 appropriate C<strotol>-like function based on the platform and F<Configure>
6661 options>. For example it could expand to C<strtoll> or C<strtoq> instead of
6664 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base
6666 Platform and configuration independent C<strtoul>. This expands to the
6667 appropriate C<strotoul>-like function based on the platform and F<Configure>
6668 options>. For example it could expand to C<strtoull> or C<strtouq> instead of
6675 #define Strtod my_strtod
6677 #if defined(HAS_STRTOD) \
6678 || defined(USE_QUADMATH) \
6679 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \
6680 && defined(USE_LONG_DOUBLE))
6681 # define Perl_strtod Strtod
6684 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6685 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6687 # define strtoll __strtoll /* secret handshake */
6689 # if defined(WIN64) && defined(_MSC_VER)
6690 # define strtoll _strtoi64 /* secret handshake */
6692 # if !defined(Strtol) && defined(HAS_STRTOLL)
6693 # define Strtol strtoll
6695 # if !defined(Strtol) && defined(HAS_STRTOQ)
6696 # define Strtol strtoq
6698 /* is there atoq() anywhere? */
6700 #if !defined(Strtol) && defined(HAS_STRTOL)
6701 # define Strtol strtol
6704 /* It would be more fashionable to use Strtol() to define atol()
6705 * (as is done for Atoul(), see below) but for backward compatibility
6706 * we just assume atol(). */
6707 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6708 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6710 # define atoll _atoi64 /* secret handshake */
6718 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6719 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
6721 # define strtoull __strtoull /* secret handshake */
6723 # if defined(WIN64) && defined(_MSC_VER)
6724 # define strtoull _strtoui64 /* secret handshake */
6726 # if !defined(Strtoul) && defined(HAS_STRTOULL)
6727 # define Strtoul strtoull
6729 # if !defined(Strtoul) && defined(HAS_STRTOUQ)
6730 # define Strtoul strtouq
6732 /* is there atouq() anywhere? */
6734 #if !defined(Strtoul) && defined(HAS_STRTOUL)
6735 # define Strtoul strtoul
6737 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6738 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6741 # define Atoul(s) Strtoul(s, NULL, 10)
6744 #define grok_bin(s,lp,fp,rp) \
6745 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b')
6746 #define grok_oct(s,lp,fp,rp) \
6747 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \
6748 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0'))
6749 #define grok_hex(s,lp,fp,rp) \
6750 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x')
6752 #ifndef PERL_SCRIPT_MODE
6753 #define PERL_SCRIPT_MODE "r"
6756 /* not used. Kept as a NOOP for backcompat */
6757 #define PERL_STACK_OVERFLOW_CHECK() NOOP
6760 * Some nonpreemptive operating systems find it convenient to
6761 * check for asynchronous conditions after each op execution.
6762 * Keep this check simple, or it may slow down execution
6767 # ifndef PERL_ASYNC_CHECK
6768 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
6772 #ifndef PERL_ASYNC_CHECK
6773 # define PERL_ASYNC_CHECK() NOOP
6777 * On some operating systems, a memory allocation may succeed,
6778 * but put the process too close to the system's comfort limit.
6779 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6782 #ifndef PERL_ALLOC_CHECK
6783 #define PERL_ALLOC_CHECK(p) NOOP
6787 # include <sys/ipc.h>
6788 # include <sys/sem.h>
6789 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6792 struct semid_ds *buf;
6793 unsigned short *array;
6796 # ifdef USE_SEMCTL_SEMUN
6797 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6798 union gccbug_semun {
6800 struct semid_ds *buf;
6801 unsigned short *array;
6804 # define semun gccbug_semun
6806 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6807 # elif defined(USE_SEMCTL_SEMID_DS)
6808 # ifdef EXTRA_F_IN_SEMUN_BUF
6809 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6811 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6817 * Boilerplate macros for initializing and accessing interpreter-local
6818 * data from C. All statics in extensions should be reworked to use
6819 * this, if you want to make the extension thread-safe. See
6820 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6821 * and perlxs.pod for more.
6823 * Code that uses these macros is responsible for the following:
6824 * 1. #define MY_CXT_KEY to a unique string, e.g.
6825 * "DynaLoader::_guts" XS_VERSION
6826 * XXX in the current implementation, this string is ignored.
6827 * 2. Declare a typedef named my_cxt_t that is a structure that contains
6828 * all the data that needs to be interpreter-local.
6829 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
6830 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
6831 * (typically put in the BOOT: section).
6832 * 5. Use the members of the my_cxt_t structure everywhere as
6834 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
6838 #if defined(PERL_IMPLICIT_CONTEXT)
6840 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
6841 * right after the definition (i.e. at file scope). The non-threads
6842 * case below uses it to declare the data as static. */
6843 # define START_MY_CXT static int my_cxt_index = -1;
6844 # define MY_CXT_INDEX my_cxt_index
6845 # define MY_CXT_INIT_ARG &my_cxt_index
6847 /* Creates and zeroes the per-interpreter data.
6848 * (We allocate my_cxtp in a Perl SV so that it will be released when
6849 * the interpreter goes away.) */
6850 # define MY_CXT_INIT \
6851 my_cxt_t *my_cxtp = \
6852 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6853 PERL_UNUSED_VAR(my_cxtp)
6854 # define MY_CXT_INIT_INTERP(my_perl) \
6855 my_cxt_t *my_cxtp = \
6856 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6857 PERL_UNUSED_VAR(my_cxtp)
6859 /* This declaration should be used within all functions that use the
6860 * interpreter-local data. */
6862 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
6863 # define dMY_CXT_INTERP(my_perl) \
6864 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6866 /* Clones the per-interpreter data. */
6867 # define MY_CXT_CLONE \
6868 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
6869 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
6870 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6871 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6875 /* This macro must be used to access members of the my_cxt_t structure.
6876 * e.g. MY_CXT.some_data */
6877 # define MY_CXT (*my_cxtp)
6879 /* Judicious use of these macros can reduce the number of times dMY_CXT
6880 * is used. Use is similar to pTHX, aTHX etc. */
6881 # define pMY_CXT my_cxt_t *my_cxtp
6882 # define pMY_CXT_ pMY_CXT,
6883 # define _pMY_CXT ,pMY_CXT
6884 # define aMY_CXT my_cxtp
6885 # define aMY_CXT_ aMY_CXT,
6886 # define _aMY_CXT ,aMY_CXT
6888 #else /* PERL_IMPLICIT_CONTEXT */
6890 # define START_MY_CXT static my_cxt_t my_cxt;
6891 # define dMY_CXT_SV dNOOP
6892 # define dMY_CXT dNOOP
6893 # define dMY_CXT_INTERP(my_perl) dNOOP
6894 # define MY_CXT_INIT NOOP
6895 # define MY_CXT_CLONE NOOP
6896 # define MY_CXT my_cxt
6898 # define pMY_CXT void
6905 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
6916 # undef FD_CLOEXEC /* a lie in AmigaOS */
6920 # include <sys/file.h>
6923 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
6924 EXTERN_C int flock(int fd, int op);
6928 /* Assume UNIX defaults */
6929 # define O_RDONLY 0000
6930 # define O_WRONLY 0001
6931 # define O_RDWR 0002
6932 # define O_CREAT 0100
6943 #if O_TEXT != O_BINARY
6944 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6945 * that is, you are somehow DOSish. */
6946 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6947 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6948 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
6949 /* VOS has O_TEXT != O_BINARY, and they have effect,
6950 * but VOS always uses LF, never CRLF. */
6951 /* If you have O_TEXT different from your O_BINARY but you still are
6952 * not a CRLF shop. */
6953 # undef PERLIO_USING_CRLF
6955 /* If you really are DOSish. */
6956 # define PERLIO_USING_CRLF 1
6961 # include <libutil.h> /* setproctitle() in some FreeBSDs */
6964 #ifndef EXEC_ARGV_CAST
6965 #define EXEC_ARGV_CAST(x) (char **)x
6968 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6969 int). value returned in pointed-
6971 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
6972 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
6973 #define IS_NUMBER_NEG 0x08 /* leading minus sign */
6974 #define IS_NUMBER_INFINITY 0x10 /* this is big */
6975 #define IS_NUMBER_NAN 0x20 /* this is not */
6976 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
6979 =head1 Numeric functions
6981 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send
6983 A synonym for L</grok_numeric_radix>
6987 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6989 /* Number scan flags. All are used for input, the ones used for output are so
6991 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
6992 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
6994 /* grok_??? input: ignored; output: found overflow */
6995 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04
6997 /* grok_??? don't warn about illegal digits. To preserve total backcompat,
6998 * this isn't set on output if one is found. Instead, see
6999 * PERL_SCAN_NOTIFY_ILLDIGIT. */
7000 #define PERL_SCAN_SILENT_ILLDIGIT 0x08
7002 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
7003 and set IS_NUMBER_TRAILING */
7005 /* These are considered experimental, so not exposed publicly */
7006 #if defined(PERL_CORE) || defined(PERL_EXT)
7007 /* grok_??? don't warn about very large numbers which are <= UV_MAX;
7008 * output: found such a number */
7009 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20
7011 /* If this is set on input, and no illegal digit is found, it will be cleared
7012 * on output; otherwise unchanged */
7013 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40
7015 /* Don't warn on overflow; output flag still set */
7016 # define PERL_SCAN_SILENT_OVERFLOW 0x80
7018 /* Forbid a leading underscore, which the other one doesn't */
7019 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES)
7023 /* to let user control profiling */
7024 #ifdef PERL_GPROF_CONTROL
7025 extern void moncontrol(int);
7026 #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
7028 #define PERL_GPROF_MONCONTROL(x)
7031 /* ISO 6429 NEL - C1 control NExt Line */
7032 /* See https://www.unicode.org/unicode/reports/tr13/ */
7033 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE
7035 #ifndef PIPESOCK_MODE
7036 # define PIPESOCK_MODE
7039 #ifndef SOCKET_OPEN_MODE
7040 # define SOCKET_OPEN_MODE PIPESOCK_MODE
7043 #ifndef PIPE_OPEN_MODE
7044 # define PIPE_OPEN_MODE PIPESOCK_MODE
7047 #define PERL_MAGIC_UTF8_CACHESIZE 2
7049 #define PERL_UNICODE_STDIN_FLAG 0x0001
7050 #define PERL_UNICODE_STDOUT_FLAG 0x0002
7051 #define PERL_UNICODE_STDERR_FLAG 0x0004
7052 #define PERL_UNICODE_IN_FLAG 0x0008
7053 #define PERL_UNICODE_OUT_FLAG 0x0010
7054 #define PERL_UNICODE_ARGV_FLAG 0x0020
7055 #define PERL_UNICODE_LOCALE_FLAG 0x0040
7056 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
7057 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
7059 #define PERL_UNICODE_STD_FLAG \
7060 (PERL_UNICODE_STDIN_FLAG | \
7061 PERL_UNICODE_STDOUT_FLAG | \
7062 PERL_UNICODE_STDERR_FLAG)
7064 #define PERL_UNICODE_INOUT_FLAG \
7065 (PERL_UNICODE_IN_FLAG | \
7066 PERL_UNICODE_OUT_FLAG)
7068 #define PERL_UNICODE_DEFAULT_FLAGS \
7069 (PERL_UNICODE_STD_FLAG | \
7070 PERL_UNICODE_INOUT_FLAG | \
7071 PERL_UNICODE_LOCALE_FLAG)
7073 #define PERL_UNICODE_ALL_FLAGS 0x01ff
7075 #define PERL_UNICODE_STDIN 'I'
7076 #define PERL_UNICODE_STDOUT 'O'
7077 #define PERL_UNICODE_STDERR 'E'
7078 #define PERL_UNICODE_STD 'S'
7079 #define PERL_UNICODE_IN 'i'
7080 #define PERL_UNICODE_OUT 'o'
7081 #define PERL_UNICODE_INOUT 'D'
7082 #define PERL_UNICODE_ARGV 'A'
7083 #define PERL_UNICODE_LOCALE 'L'
7084 #define PERL_UNICODE_WIDESYSCALLS 'W'
7085 #define PERL_UNICODE_UTF8CACHEASSERT 'a'
7087 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001
7090 =head1 Numeric functions
7092 =for apidoc Am|int|PERL_ABS|int
7094 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for
7095 integers, but it works for any type.) Use instead of these, since the C
7096 library ones force their argument to be what it is expecting, potentially
7097 leading to disaster. But also beware that this evaluates its argument twice,
7103 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
7105 #if defined(__DECC) && defined(__osf__)
7106 #pragma message disable (mainparm) /* Perl uses the envp in main(). */
7109 #define do_open(g, n, l, a, rm, rp, sf) \
7110 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
7111 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
7112 # define do_exec(cmd) do_exec3(cmd,0,0)
7115 # define do_aexec Perl_do_aexec
7117 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
7122 =head1 Miscellaneous Functions
7124 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name
7126 Same as L</is_safe_syscall>.
7130 Allows one ending \0
7132 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
7134 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
7136 #if defined(OEMVS) || defined(__amigaos4__)
7137 #define NO_ENV_ARRAY_IN_MAIN
7140 /* These are used by Perl_pv_escape() and Perl_pv_pretty()
7141 * are here so that they are available throughout the core
7142 * NOTE that even though some are for _escape and some for _pretty
7143 * there must not be any clashes as the flags from _pretty are
7144 * passed straight through to _escape.
7147 #define PERL_PV_ESCAPE_QUOTE 0x000001
7148 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
7150 #define PERL_PV_PRETTY_ELLIPSES 0x000002
7151 #define PERL_PV_PRETTY_LTGT 0x000004
7152 #define PERL_PV_PRETTY_EXACTSIZE 0x000008
7154 #define PERL_PV_ESCAPE_UNI 0x000100
7155 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200
7156 #define PERL_PV_ESCAPE_NONASCII 0x000400
7157 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
7159 #define PERL_PV_ESCAPE_ALL 0x001000
7160 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
7161 #define PERL_PV_ESCAPE_NOCLEAR 0x004000
7162 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
7163 #define PERL_PV_ESCAPE_RE 0x008000
7165 #define PERL_PV_ESCAPE_DWIM 0x010000
7168 /* used by pv_display in dump.c*/
7169 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
7170 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
7172 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
7173 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
7174 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
7175 # define DOUBLE_IS_VAX_FLOAT
7177 # define DOUBLE_IS_IEEE_FORMAT
7180 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
7181 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
7182 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7183 # define DOUBLE_LITTLE_ENDIAN
7186 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
7187 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
7188 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7189 # define DOUBLE_BIG_ENDIAN
7192 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
7193 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7194 # define DOUBLE_MIX_ENDIAN
7197 /* The VAX fp formats are neither consistently little-endian nor
7198 * big-endian, and neither are they really IEEE-mixed endian like
7199 * the mixed-endian ARM IEEE formats (with swapped bytes).
7200 * Ultimately, the VAX format came from the PDP-11.
7202 * The ordering of the parts in VAX floats is quite vexing.
7203 * In the below the fraction_n are the mantissa bits.
7205 * The fraction_1 is the most significant (numbering as by DEC/Digital),
7206 * while the rightmost bit in each fraction is the least significant:
7207 * in other words, big-endian bit order within the fractions.
7209 * The fraction segments themselves would be big-endianly, except that
7210 * within 32 bit segments the less significant half comes first, the more
7211 * significant after, except that in the format H (used for long doubles)
7212 * the first fraction segment is alone, because the exponent is wider.
7213 * This means for example that both the most and the least significant
7214 * bits can be in the middle of the floats, not at either end.
7217 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
7218 * http://www.quadibloc.com/comp/cp0201.htm
7219 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
7220 * (somebody at HP should be fired for the URLs)
7222 * F fraction_2:16 sign:1 exp:8 fraction_1:7
7223 * (exponent bias 128, hidden first one-bit)
7225 * D fraction_2:16 sign:1 exp:8 fraction_1:7
7226 * fraction_4:16 fraction_3:16
7227 * (exponent bias 128, hidden first one-bit)
7229 * G fraction_2:16 sign:1 exp:11 fraction_1:4
7230 * fraction_4:16 fraction_3:16
7231 * (exponent bias 1024, hidden first one-bit)
7233 * H fraction_1:16 sign:1 exp:15
7234 * fraction_3:16 fraction_2:16
7235 * fraction_5:16 fraction_4:16
7236 * fraction_7:16 fraction_6:16
7237 * (exponent bias 16384, hidden first one-bit)
7238 * (available only on VAX, and only on Fortran?)
7240 * The formats S, T and X are available on the Alpha (and Itanium,
7241 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
7242 * binary32, binary64, and binary128 (commonly: float, double, long double).
7244 * S sign:1 exp:8 mantissa:23
7245 * (exponent bias 127, hidden first one-bit)
7247 * T sign:1 exp:11 mantissa:52
7248 * (exponent bias 1022, hidden first one-bit)
7250 * X sign:1 exp:15 mantissa:112
7251 * (exponent bias 16382, hidden first one-bit)
7255 #ifdef DOUBLE_IS_VAX_FLOAT
7256 # define DOUBLE_VAX_ENDIAN
7259 #ifdef DOUBLE_IS_IEEE_FORMAT
7260 /* All the basic IEEE formats have the implicit bit,
7261 * except for the x86 80-bit extended formats, which will undef this.
7262 * Also note that the IEEE 754 subnormals (formerly known as denormals)
7263 * do not have the implicit bit of one. */
7264 # define NV_IMPLICIT_BIT
7267 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
7269 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
7270 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7271 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7272 # define LONGDOUBLE_LITTLE_ENDIAN
7275 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
7276 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
7277 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7278 # define LONGDOUBLE_BIG_ENDIAN
7281 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7282 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7283 # define LONGDOUBLE_MIX_ENDIAN
7286 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7287 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7288 # define LONGDOUBLE_X86_80_BIT
7289 # ifdef USE_LONG_DOUBLE
7290 # undef NV_IMPLICIT_BIT
7291 # define NV_X86_80_BIT
7295 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7296 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7297 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7298 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7299 # define LONGDOUBLE_DOUBLEDOUBLE
7302 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
7303 # define LONGDOUBLE_VAX_ENDIAN
7306 #endif /* LONG_DOUBLEKIND */
7308 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
7309 # if defined(DOUBLE_LITTLE_ENDIAN)
7310 # define NV_LITTLE_ENDIAN
7311 # elif defined(DOUBLE_BIG_ENDIAN)
7312 # define NV_BIG_ENDIAN
7313 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
7314 # define NV_MIX_ENDIAN
7316 #elif NVSIZE == DOUBLESIZE
7317 # ifdef DOUBLE_LITTLE_ENDIAN
7318 # define NV_LITTLE_ENDIAN
7320 # ifdef DOUBLE_BIG_ENDIAN
7321 # define NV_BIG_ENDIAN
7323 # ifdef DOUBLE_MIX_ENDIAN
7324 # define NV_MIX_ENDIAN
7326 # ifdef DOUBLE_VAX_ENDIAN
7327 # define NV_VAX_ENDIAN
7329 #elif NVSIZE == LONG_DOUBLESIZE
7330 # ifdef LONGDOUBLE_LITTLE_ENDIAN
7331 # define NV_LITTLE_ENDIAN
7333 # ifdef LONGDOUBLE_BIG_ENDIAN
7334 # define NV_BIG_ENDIAN
7336 # ifdef LONGDOUBLE_MIX_ENDIAN
7337 # define NV_MIX_ENDIAN
7339 # ifdef LONGDOUBLE_VAX_ENDIAN
7340 # define NV_VAX_ENDIAN
7344 /* We have somehow managed not to define the denormal/subnormal
7347 * This may happen if the compiler doesn't expose the C99 math like
7348 * the fpclassify() without some special switches. Perl tries to
7349 * stay C89, so for example -std=c99 is not an option.
7351 * The Perl_isinf() and Perl_isnan() should have been defined even if
7352 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
7353 * from the C89 DBL_MIN or moral equivalent. */
7354 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
7355 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
7358 /* This is not a great fallback: subnormals tests will fail,
7359 * but at least Perl will link and 99.999% of tests will work. */
7360 #if !defined(Perl_fp_class_denorm)
7361 # define Perl_fp_class_denorm(x) FALSE
7364 #ifdef DOUBLE_IS_IEEE_FORMAT
7365 # define DOUBLE_HAS_INF
7366 # define DOUBLE_HAS_NAN
7369 #ifdef DOUBLE_HAS_NAN
7375 /* PL_inf and PL_nan initialization.
7377 * For inf and nan initialization the ultimate fallback is dividing
7378 * one or zero by zero: however, some compilers will warn or even fail
7379 * on divide-by-zero, but hopefully something earlier will work.
7381 * If you are thinking of using HUGE_VAL for infinity, or using
7382 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
7383 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
7384 * and the math functions might be just generating DBL_MAX, or even zero.
7386 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
7387 * Though logically correct, some compilers (like Visual C 2003)
7388 * falsely misoptimize that to zero (x-x is always zero, right?)
7390 * Finally, note that not all floating point formats define Inf (or NaN).
7391 * For the infinity a large number may be used instead. Operations that
7392 * under the IEEE floating point would return Inf or NaN may return
7393 * either large numbers (positive or negative), or they may cause
7394 * a floating point exception or some other fault.
7397 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
7398 # ifndef USE_CPLUSPLUS
7399 GCC_DIAG_IGNORE_DECL(-Wc++-compat);
7402 # ifdef USE_QUADMATH
7403 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time
7405 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
7406 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
7407 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
7408 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
7409 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
7411 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7412 # if defined(LDBL_INFINITY)
7413 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
7414 # elif defined(LDBL_INF)
7415 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
7416 # elif defined(INFINITY)
7417 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7419 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7421 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
7424 # if defined(DBL_INFINITY)
7425 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
7426 # elif defined(DBL_INF)
7427 INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
7428 # elif defined(INFINITY) /* C99 */
7429 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
7431 INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
7433 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
7438 # ifdef USE_QUADMATH
7439 /* Cannot use nanq("0") for PL_nan because not a compile-time
7441 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
7442 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
7443 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
7444 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
7445 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
7447 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
7448 # if defined(LDBL_NAN)
7449 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
7450 # elif defined(LDBL_QNAN)
7451 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
7453 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7455 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
7458 # if defined(DBL_NAN)
7459 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
7460 # elif defined(DBL_QNAN)
7461 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
7462 # elif defined(NAN) /* C99 */
7463 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
7465 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
7470 # ifndef USE_CPLUSPLUS
7471 GCC_DIAG_RESTORE_DECL;
7476 INFNAN_NV_U8_DECL PL_inf;
7477 INFNAN_NV_U8_DECL PL_nan;
7483 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
7484 * we will define NV_INF/NV_NAN as the nv part of the global const
7485 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
7486 * might not be a compile-time constant, in which case it cannot be
7487 * used to initialize PL_inf/PL_nan above. */
7489 # define NV_INF PL_inf.nv
7492 # define NV_NAN PL_nan.nv
7495 /* NaNs (not-a-numbers) can carry payload bits, in addition to
7496 * "nan-ness". Part of the payload is the quiet/signaling bit.
7497 * To back up a bit (harhar):
7499 * For IEEE 754 64-bit formats [1]:
7501 * s 000 (mantissa all-zero) zero
7502 * s 000 (mantissa non-zero) subnormals (denormals)
7503 * s 001 ... 7fe normals
7506 * For IEEE 754 128-bit formats:
7508 * s 0000 (mantissa all-zero) zero
7509 * s 0000 (mantissa non-zero) subnormals (denormals)
7510 * s 0001 ... 7ffe normals
7513 * [1] this looks like big-endian, but applies equally to little-endian.
7515 * s = Sign bit. Yes, zeros and nans can have negative sign,
7516 * the interpretation is application-specific.
7518 * q = Quietness bit, the interpretation is platform-specific.
7519 * Most platforms have the most significant bit being one
7520 * meaning quiet, but some (older mips, hppa) have the msb
7521 * being one meaning signaling. Note that the above means
7522 * that on most platforms there cannot be signaling nan with
7523 * zero payload because that is identical with infinity;
7524 * while conversely on older mips/hppa there cannot be a quiet nan
7525 * because that is identical with infinity.
7527 * Moreover, whether there is any behavioral difference
7528 * between quiet and signaling NaNs, depends on the platform.
7530 * x86 80-bit extended precision is different, the mantissa bits:
7532 * 63 62 61 30387+ pre-387 visual c
7533 * -------- ---- -------- --------
7534 * 0 0 0 invalid infinity
7535 * 0 0 1 invalid snan
7536 * 0 1 0 invalid snan
7537 * 0 1 1 invalid snan
7538 * 1 0 0 infinity snan 1.#INF
7539 * 1 0 1 snan 1.#SNAN
7540 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
7541 * 1 1 1 qnan 1.#QNAN
7543 * This means that in this format there are 61 bits available
7544 * for the nan payload.
7546 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
7547 * simply cannot preserve the bit. You can either use the 80-bit
7548 * extended precision (long double, -Duselongdouble), or use x86-64.
7550 * In all platforms, the payload bytes (and bits, some of them are
7551 * often in a partial byte) themselves can be either all zero (x86),
7552 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
7553 * or in a double-double, the first half of the payload can follow the
7554 * native double, while in the second half the payload can be all
7555 * zeros. (Therefore the mask for payload bits is not necessarily
7556 * identical to bit complement of the NaN.) Another way of putting
7557 * this: the payload for the default NaN might not be zero.
7559 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
7560 * being 'packaged' in either 12 or 16 bytes) can be whatever random
7563 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
7564 * On normal floats, the sign bit being on means negative. But this may,
7565 * or may not, be reverted on NaNs: in other words, the default NaN might
7566 * have the sign bit on, and therefore look like negative if you look
7567 * at it at the bit level.
7569 * NaN payloads are not propagated even on copies, or in arithmetics.
7570 * They *might* be, according to some rules, on your particular
7571 * cpu/os/compiler/libraries, but no guarantees.
7573 * To summarize, on most platforms, and for 64-bit doubles
7574 * (using big-endian ordering here):
7576 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
7577 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
7578 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
7579 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
7581 * The C99 nan() is supposed to generate *quiet* NaNs.
7583 * Note the asymmetry:
7584 * The 7FF0000000000000 is positive infinity,
7585 * the FFF0000000000000 is negative infinity.
7588 /* NVMANTBITS is the number of _real_ mantissa bits in an NV.
7589 * For the standard IEEE 754 fp this number is usually one less that
7590 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
7591 * real. For the 80-bit extended precision formats (x86*), the number
7592 * of mantissa bits... depends. For normal floats, it's 64. But for
7593 * the inf/nan, it's different (zero for inf, 61 for nan).
7594 * NVMANTBITS works for normal floats. */
7596 /* We do not want to include the quiet/signaling bit. */
7597 #define NV_NAN_BITS (NVMANTBITS - 1)
7599 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7600 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7601 # define NV_NAN_QS_BYTE_OFFSET 13
7602 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7603 # define NV_NAN_QS_BYTE_OFFSET 2
7604 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7605 # define NV_NAN_QS_BYTE_OFFSET 7
7606 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7607 # define NV_NAN_QS_BYTE_OFFSET 2
7608 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7609 # define NV_NAN_QS_BYTE_OFFSET 13
7610 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7611 # define NV_NAN_QS_BYTE_OFFSET 1
7612 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7613 # define NV_NAN_QS_BYTE_OFFSET 9
7614 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7615 # define NV_NAN_QS_BYTE_OFFSET 6
7617 # error "Unexpected long double format"
7620 # ifdef USE_QUADMATH
7621 # ifdef NV_LITTLE_ENDIAN
7622 # define NV_NAN_QS_BYTE_OFFSET 13
7623 # elif defined(NV_BIG_ENDIAN)
7624 # define NV_NAN_QS_BYTE_OFFSET 2
7626 # error "Unexpected quadmath format"
7628 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7629 # define NV_NAN_QS_BYTE_OFFSET 2
7630 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7631 # define NV_NAN_QS_BYTE_OFFSET 1
7632 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7633 # define NV_NAN_QS_BYTE_OFFSET 6
7634 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7635 # define NV_NAN_QS_BYTE_OFFSET 1
7636 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7637 # define NV_NAN_QS_BYTE_OFFSET 13
7638 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7639 # define NV_NAN_QS_BYTE_OFFSET 2
7640 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7641 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
7642 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7643 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
7645 /* For example the VAX formats should never
7646 * get here because they do not have NaN. */
7647 # error "Unexpected double format"
7650 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
7651 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
7652 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
7653 * for the quiet/signaling */
7654 #if defined(USE_LONG_DOUBLE) && \
7655 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
7656 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
7657 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
7658 #elif defined(USE_LONG_DOUBLE) && \
7659 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
7660 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
7661 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
7662 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
7663 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
7665 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
7667 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
7668 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
7669 * (bytes ordered big-endianly) for the quiet/signaling bit
7670 * for the quiet/signaling */
7671 #define NV_NAN_QS_BIT_OFFSET \
7672 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
7673 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
7674 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
7675 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
7676 #define NV_NAN_QS_QUIET \
7677 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
7678 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
7679 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
7680 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
7681 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
7682 * Note however that these do not check whether the nvp is a NaN. */
7683 #define NV_NAN_IS_QUIET(nvp) \
7684 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
7685 #define NV_NAN_IS_SIGNALING(nvp) \
7686 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
7687 #define NV_NAN_SET_QUIET(nvp) \
7688 (NV_NAN_QS_QUIET ? \
7689 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
7690 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
7691 #define NV_NAN_SET_SIGNALING(nvp) \
7692 (NV_NAN_QS_QUIET ? \
7693 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
7694 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
7695 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
7697 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
7699 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
7700 * 0xFF means "don't go here".*/
7702 /* Shorthands to avoid typoses. */
7703 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
7704 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
7705 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
7706 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7707 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \
7708 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
7709 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \
7710 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7711 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
7712 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
7713 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
7714 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
7715 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7716 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
7717 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
7718 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7719 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7720 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
7721 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
7722 NV_NAN_PAYLOAD_PERM_7_TO_0
7723 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
7724 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
7725 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
7726 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
7727 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
7728 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7729 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
7730 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
7732 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
7733 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7734 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7735 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7736 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7737 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7738 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7739 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
7740 # if LONG_DOUBLESIZE == 10
7741 # define NV_NAN_PAYLOAD_MASK \
7742 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7744 # define NV_NAN_PAYLOAD_PERM \
7745 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
7746 # elif LONG_DOUBLESIZE == 12
7747 # define NV_NAN_PAYLOAD_MASK \
7748 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7749 0x00, 0x00, 0x00, 0x00
7750 # define NV_NAN_PAYLOAD_PERM \
7751 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
7752 # elif LONG_DOUBLESIZE == 16
7753 # define NV_NAN_PAYLOAD_MASK \
7754 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
7755 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7756 # define NV_NAN_PAYLOAD_PERM \
7757 NV_NAN_PAYLOAD_PERM_0_TO_7, \
7758 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7760 # error "Unexpected x86 80-bit little-endian long double format"
7762 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
7763 # if LONG_DOUBLESIZE == 10
7764 # define NV_NAN_PAYLOAD_MASK \
7765 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7767 # define NV_NAN_PAYLOAD_PERM \
7768 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
7769 # elif LONG_DOUBLESIZE == 12
7770 # define NV_NAN_PAYLOAD_MASK \
7771 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7772 0xff, 0xff, 0x00, 0x00
7773 # define NV_NAN_PAYLOAD_PERM \
7774 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
7775 # elif LONG_DOUBLESIZE == 16
7776 # define NV_NAN_PAYLOAD_MASK \
7777 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
7778 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7779 # define NV_NAN_PAYLOAD_PERM \
7780 NV_NAN_PAYLOAD_PERM_7_TO_0, \
7781 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
7783 # error "Unexpected x86 80-bit big-endian long double format"
7785 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
7786 /* For double-double we assume only the first double (in LE or BE terms)
7787 * is used for NaN. */
7788 # define NV_NAN_PAYLOAD_MASK \
7789 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7790 # define NV_NAN_PAYLOAD_PERM \
7791 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7792 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
7793 # define NV_NAN_PAYLOAD_MASK \
7794 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7795 # define NV_NAN_PAYLOAD_PERM \
7796 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7797 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
7798 # define NV_NAN_PAYLOAD_MASK \
7799 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7800 # define NV_NAN_PAYLOAD_PERM \
7801 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7802 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
7803 # define NV_NAN_PAYLOAD_MASK \
7804 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7805 # define NV_NAN_PAYLOAD_PERM \
7806 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7808 # error "Unexpected long double format"
7811 # ifdef USE_QUADMATH /* quadmath is not long double */
7812 # ifdef NV_LITTLE_ENDIAN
7813 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7814 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7815 # elif defined(NV_BIG_ENDIAN)
7816 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7817 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7819 # error "Unexpected quadmath format"
7821 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
7822 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
7823 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
7824 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
7825 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
7826 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
7827 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7828 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7829 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7830 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7831 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7832 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7833 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7834 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7835 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7836 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7837 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7838 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7839 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7840 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
7841 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
7842 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7843 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
7844 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
7846 # error "Unexpected double format"
7850 #endif /* DOUBLE_HAS_NAN */
7855 (KEEP THIS LAST IN perl.h!)
7897 so that Configure picks them up.
7899 (KEEP THIS LAST IN perl.h!)
7903 #endif /* Include guard */
7906 * ex: set ts=8 sts=4 sw=4 et: