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Remove PERLIO_FUNCS_CONST
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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
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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.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
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31/* this is used for functions which take a depth trailing
32 * argument under debugging */
33#ifdef DEBUGGING
34#define _pDEPTH ,U32 depth
35#define _aDEPTH ,depth
36#else
37#define _pDEPTH
38#define _aDEPTH
39#endif
40
7dc3eb73 41/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
44
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. */
9267464d 47#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
996959af 48 defined(_STDC_C99) || defined(__c99)
86a3cabf 49# define HAS_C99 1
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50#endif
51
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52/* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
54
7ee02ac1 55/* XXX NOTE that from here --> to <-- the same logic is
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56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
58
6f4183fe 59#ifdef USE_ITHREADS
acfe0abc 60# if !defined(MULTIPLICITY)
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61# define MULTIPLICITY
62# endif
63#endif
64
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65#ifdef MULTIPLICITY
66# ifndef PERL_IMPLICIT_CONTEXT
67# define PERL_IMPLICIT_CONTEXT
68# endif
69#endif
70
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71/* undef WIN32 when building on Cygwin (for libwin32) - gph */
72#ifdef __CYGWIN__
73# undef WIN32
74# undef _WIN32
75#endif
76
dd134d2c 77/* Use the reentrant APIs like localtime_r and getpwent_r */
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78/* Win32 has naturally threadsafe libraries, no need to use any _r variants.
79 * XXX KEEP makedef.pl copy of this code in sync */
14795193 80#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
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81# define USE_REENTRANT_API
82#endif
83
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84/* <--- here ends the logic shared by perl.h and makedef.pl */
85
ea32afd3 86/*
3f620621 87=for apidoc_section $directives
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88=for apidoc AmnUu|void|EXTERN_C
89When not compiling using C++, expands to nothing.
90Otherwise is used in a declaration of a function to indicate the function
91should have external C linkage. This is required for things to work for just
92about all functions with external linkage compiled into perl.
93Often, you can use C<L</START_EXTERN_C>> ... C<L</END_EXTERN_C>> blocks
94surrounding all your code that you need to have this linkage.
95
96Example usage:
97
98 EXTERN_C int flock(int fd, int op);
99
100=for apidoc Amnu||START_EXTERN_C
101When not compiling using C++, expands to nothing.
102Otherwise begins a section of code in which every function will effectively
103have C<L</EXTERN_C>> applied to it, that is to have external C linkage. The
104section is ended by a C<L</END_EXTERN_C>>.
105
106=for apidoc Amnu||END_EXTERN_C
107When not compiling using C++, expands to nothing.
108Otherwise ends a section of code already begun by a C<L</START_EXTERN_C>>.
109
110=cut
111*/
112
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113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
cf5a8da6 117# define EXTERN_C extern "C"
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118# define START_EXTERN_C EXTERN_C {
119# define END_EXTERN_C }
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120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
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126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
c5be433b 138#ifdef PERL_IMPLICIT_CONTEXT
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139# ifndef MULTIPLICITY
140# define MULTIPLICITY
c5be433b 141# endif
e8dda941 142# define tTHX PerlInterpreter*
5aaab254 143# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 144# define aTHX my_perl
9399a70c 145# define aTHXa(a) aTHX = (tTHX)a
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146# define dTHXa(a) pTHX = (tTHX)a
147# define dTHX pTHX = PERL_GET_THX
c5be433b 148# define pTHX_ pTHX,
c5be433b 149# define aTHX_ aTHX,
4373e329 150# define pTHX_1 2
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151# define pTHX_2 3
152# define pTHX_3 4
153# define pTHX_4 5
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154# define pTHX_5 6
155# define pTHX_6 7
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156# define pTHX_7 8
157# define pTHX_8 9
158# define pTHX_9 10
a6fc70e5 159# define pTHX_12 13
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160# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
161# define PERL_TRACK_MEMPOOL
162# endif
163#else
164# undef PERL_TRACK_MEMPOOL
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165#endif
166
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167#ifdef DEBUGGING
168# define dTHX_DEBUGGING dTHX
169#else
170# define dTHX_DEBUGGING dNOOP
171#endif
172
76e3520e 173#define STATIC static
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174
175#ifndef PERL_CORE
176/* Do not use these macros. They were part of PERL_OBJECT, which was an
177 * implementation of multiplicity using C++ objects. They have been left
178 * here solely for the sake of XS code which has incorrectly
179 * cargo-culted them.
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180 *
181 * The only one Devel::PPPort handles is this; list it as deprecated
182
3f620621 183=for apidoc_section $concurrency
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184=for apidoc AmD|void|CPERLscope|void x
185Now a no-op.
186
187=cut
16c91539 188 */
76e3520e 189#define CPERLscope(x) x
565764a8 190#define CPERLarg void
76e3520e 191#define CPERLarg_
e3b8966e 192#define _CPERLarg
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193#define PERL_OBJECT_THIS
194#define _PERL_OBJECT_THIS
195#define PERL_OBJECT_THIS_
312caa8e 196#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 197#define MEMBER_TO_FPTR(name) name
16c91539 198#endif /* !PERL_CORE */
76e3520e 199
16c91539 200#define CALLRUNOPS PL_runops
f9f4320a 201
3ab4a224 202#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 203
16c91539 204#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 205#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 206 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 207 (strbeg),(minend),(sv),(data),(flags))
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208#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
209 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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210 (strend),(flags),(data))
211#define CALLREG_INTUIT_STRING(prog) \
16c91539 212 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 213
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214#define CALLREGFREE(prog) \
215 Perl_pregfree(aTHX_ (prog))
216
217#define CALLREGFREE_PVT(prog) \
4c8117d3 218 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 219
2fdbfb4d 220#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 221 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 222
2fdbfb4d 223#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 224 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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225
226#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 227 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 228
192b9cd1 229#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 230 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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231
232#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 233 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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234
235#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 236 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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237
238#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 239 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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240
241#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 242 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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243
244#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 245 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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246
247#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 248 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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249
250#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 251 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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252
253#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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255
256#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 257 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 258
49d7dfbc 259#define CALLREG_PACKAGE(rx) \
16c91539 260 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 261
00f254e2 262#if defined(USE_ITHREADS)
f9f4320a 263#define CALLREGDUPE(prog,param) \
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264 Perl_re_dup(aTHX_ (prog),(param))
265
266#define CALLREGDUPE_PVT(prog,param) \
16c91539 267 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 268 : (REGEXP *)NULL)
f9f4320a 269#endif
14dd3ad8 270
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271/* some compilers impersonate gcc */
272#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
273# define PERL_IS_GCC 1
274#endif
275
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276/* In case Configure was not used (we are using a "canned config"
277 * such as Win32, or a cross-compilation setup, for example) try going
278 * by the gcc major and minor versions. One useful URL is
279 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
280 * but contrary to this information warn_unused_result seems
281 * not to be in gcc 3.3.5, at least. --jhi
282 * Also, when building extensions with an installed perl, this allows
283 * the user to upgrade gcc and get the right attributes, rather than
284 * relying on the list generated at Configure time. --AD
285 * Set these up now otherwise we get confused when some of the <*thread.h>
286 * includes below indirectly pull in <perlio.h> (which needs to know if we
287 * have HASATTRIBUTE_FORMAT).
288 */
289
290#ifndef PERL_MICRO
291#if defined __GNUC__ && !defined(__INTEL_COMPILER)
292# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
293# define HASATTRIBUTE_DEPRECATED
294# endif
295# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
296# define HASATTRIBUTE_FORMAT
297# if defined __MINGW32__
298# define PRINTF_FORMAT_NULL_OK
299# endif
300# endif
301# if __GNUC__ >= 3 /* 3.0 -> */
302# define HASATTRIBUTE_MALLOC
303# endif
304# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
305# define HASATTRIBUTE_NONNULL
306# endif
307# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
308# define HASATTRIBUTE_NORETURN
309# endif
310# if __GNUC__ >= 3 /* gcc 3.0 -> */
311# define HASATTRIBUTE_PURE
312# endif
313# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
314# define HASATTRIBUTE_UNUSED
315# endif
316# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
317# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
318# endif
319# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
320# define HASATTRIBUTE_WARN_UNUSED_RESULT
321# endif
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322/* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
323# if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */
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324# define HASATTRIBUTE_ALWAYS_INLINE
325# endif
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326#endif
327#endif /* #ifndef PERL_MICRO */
a20207d7 328
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329#ifdef HASATTRIBUTE_DEPRECATED
330# define __attribute__deprecated__ __attribute__((deprecated))
331#endif
332#ifdef HASATTRIBUTE_FORMAT
333# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
334#endif
335#ifdef HASATTRIBUTE_MALLOC
336# define __attribute__malloc__ __attribute__((__malloc__))
337#endif
338#ifdef HASATTRIBUTE_NONNULL
339# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
340#endif
341#ifdef HASATTRIBUTE_NORETURN
342# define __attribute__noreturn__ __attribute__((noreturn))
343#endif
344#ifdef HASATTRIBUTE_PURE
345# define __attribute__pure__ __attribute__((pure))
346#endif
347#ifdef HASATTRIBUTE_UNUSED
348# define __attribute__unused__ __attribute__((unused))
349#endif
350#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
351# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
352#endif
f1e99d0d 353#ifdef HASATTRIBUTE_ALWAYS_INLINE
d7113604 354/* always_inline is buggy in gcc <= 4.6 and causes compilation errors */
bfde97e0 355# if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4)
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356# define __attribute__always_inline__ __attribute__((always_inline))
357# endif
f1e99d0d 358#endif
bcdf7404 359
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360/* If we haven't defined the attributes yet, define them to blank. */
361#ifndef __attribute__deprecated__
362# define __attribute__deprecated__
363#endif
364#ifndef __attribute__format__
365# define __attribute__format__(x,y,z)
366#endif
367#ifndef __attribute__malloc__
368# define __attribute__malloc__
369#endif
370#ifndef __attribute__nonnull__
371# define __attribute__nonnull__(a)
372#endif
373#ifndef __attribute__noreturn__
374# define __attribute__noreturn__
375#endif
376#ifndef __attribute__pure__
377# define __attribute__pure__
378#endif
379#ifndef __attribute__unused__
380# define __attribute__unused__
381#endif
382#ifndef __attribute__warn_unused_result__
383# define __attribute__warn_unused_result__
384#endif
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385#ifndef __attribute__always_inline__
386# define __attribute__always_inline__
387#endif
a20207d7 388
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389/* Some OS warn on NULL format to printf */
390#ifdef PRINTF_FORMAT_NULL_OK
391# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
392#else
393# define __attribute__format__null_ok__(x,y,z)
394#endif
a20207d7 395
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396/*
397 * Because of backward compatibility reasons the PERL_UNUSED_DECL
398 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
399 *
400 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 401 * which do not have an "inlined" way (like the gcc __attribute__) of
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402 * marking unused variables (they need e.g. a #pragma) and therefore
403 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
404 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
90921203 405
3f620621 406=for apidoc_section $directives
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407=for apidoc AmnU||PERL_UNUSED_DECL
408Tells the compiler that the parameter in the function prototype just before it
409is not necessarily expected to be used in the function. Not that many
410compilers understand this, so this should only be used in cases where
411C<L</PERL_UNUSED_ARG>> can't conveniently be used.
412
413Example usage:
414
415=over
416
417 Signal_t
418 Perl_perly_sighandler(int sig, Siginfo_t *sip PERL_UNUSED_DECL,
419 void *uap PERL_UNUSED_DECL, bool safe)
420
421=back
422
423=cut
5ba4cab2 424 */
1266ad8c 425
5b2bd0a5 426#ifndef PERL_UNUSED_DECL
09f0a348 427# define PERL_UNUSED_DECL __attribute__unused__
5b2bd0a5 428#endif
00f254e2 429
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430/* gcc -Wall:
431 * for silencing unused variables that are actually used most of the time,
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432 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
433 * or variables/arguments that are used only in certain configurations.
fd2362a2 434
4294a0ed 435=for apidoc Ams||PERL_UNUSED_ARG|void x
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436This is used to suppress compiler warnings that a parameter to a function is
437not used. This situation can arise, for example, when a parameter is needed
438under some configuration conditions, but not others, so that C preprocessor
439conditional compilation causes it be used just some times.
440
4294a0ed 441=for apidoc Amns||PERL_UNUSED_CONTEXT
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442This is used to suppress compiler warnings that the thread context parameter to
443a function is not used. This situation can arise, for example, when a
444C preprocessor conditional compilation causes it be used just some times.
445
4294a0ed 446=for apidoc Ams||PERL_UNUSED_VAR|void x
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447This is used to suppress compiler warnings that the variable I<x> is not used.
448This situation can arise, for example, when a C preprocessor conditional
449compilation causes it be used just some times.
450
451=cut
349b520e 452 */
53c1dcc0 453#ifndef PERL_UNUSED_ARG
c707756e 454# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c 455#endif
53c1dcc0 456#ifndef PERL_UNUSED_VAR
a730e3f2 457# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 458#endif
ad73156c 459
8c3a0f6c 460#if defined(USE_ITHREADS)
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461# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
462#else
463# define PERL_UNUSED_CONTEXT
464#endif
465
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466/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
467 * g++ allows them but seems to have problems with them
468 * (insane errors ensue).
469 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
470 */
471#if defined(PERL_GCC_PEDANTIC) || \
472 (defined(__GNUC__) && defined(__cplusplus) && \
473 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
474# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
475# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
476# endif
477#endif
478
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479/*
480
481=for apidoc Am||PERL_UNUSED_RESULT|void x
482
483This macro indicates to discard the return value of the function call inside
00b72c9f 484it, I<e.g.>,
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485
486 PERL_UNUSED_RESULT(foo(a, b))
487
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488The main reason for this is that the combination of C<gcc -Wunused-result>
489(part of C<-Wall>) and the C<__attribute__((warn_unused_result))> cannot
490be silenced with casting to C<void>. This causes trouble when the system
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491header files use the attribute.
492
493Use C<PERL_UNUSED_RESULT> sparingly, though, since usually the warning
494is there for a good reason: you might lose success/failure information,
495or leak resources, or changes in resources.
496
00b72c9f 497But sometimes you just want to ignore the return value, I<e.g.>, on
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498codepaths soon ending up in abort, or in "best effort" attempts,
499or in situations where there is no good way to handle failures.
500
501Sometimes C<PERL_UNUSED_RESULT> might not be the most natural way:
502another possibility is that you can capture the return value
503and use C<L</PERL_UNUSED_VAR>> on that.
504
505=cut
506
507The __typeof__() is used instead of typeof() since typeof() is not
508available under strict C89, and because of compilers masquerading
509as gcc (clang and icc), we want exactly the gcc extension
510__typeof__ and nothing else.
511
512*/
ffea512f 513#ifndef PERL_UNUSED_RESULT
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JH
514# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
515# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
ffea512f
JH
516# else
517# define PERL_UNUSED_RESULT(v) ((void)(v))
518# endif
519#endif
520
e7ae132e
KW
521#if defined(_MSC_VER)
522/* XXX older MSVC versions have a smallish macro buffer */
523#define PERL_SMALL_MACRO_BUFFER
524#endif
525
b56aac20
DM
526/* on gcc (and clang), specify that a warning should be temporarily
527 * ignored; e.g.
528 *
7347ee54 529 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
b56aac20 530 * char b = 'ab';
7347ee54 531 * GCC_DIAG_RESTORE_DECL;
b56aac20
DM
532 *
533 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
534 *
535 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
536 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f 537 *
7347ee54
Z
538 * Note on usage: all macros must be used at a place where a declaration
539 * or statement can occur, i.e., not in the middle of an expression.
540 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
541 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
542 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
543 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
544 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
545 * and behave syntactically as statements (like NOOP).
c1d6452f 546 *
b56aac20
DM
547 */
548
57d4b8c5 549#if defined(__clang__) || defined(__clang) || \
d28ce8b4 550 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
c1d6452f
JH
551# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
552/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 553# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 554 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
b56aac20
DM
555# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
556#else
8ce6f80a
JH
557# define GCC_DIAG_IGNORE(w)
558# define GCC_DIAG_RESTORE
b56aac20 559#endif
7347ee54
Z
560#define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
561#define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
562#define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
563#define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
337458b1
JH
564/* for clang specific pragmas */
565#if defined(__clang__) || defined(__clang)
566# define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
567# define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
568 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
569# define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
570#else
571# define CLANG_DIAG_IGNORE(w)
572# define CLANG_DIAG_RESTORE
573#endif
7347ee54
Z
574#define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
575#define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
576#define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
577#define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
b56aac20 578
6879a07b
TK
579#if defined(_MSC_VER) && (_MSC_VER >= 1300)
580# define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
581 __pragma(warning(disable : x))
582# define MSVC_DIAG_RESTORE __pragma(warning(pop))
583#else
584# define MSVC_DIAG_IGNORE(x)
585# define MSVC_DIAG_RESTORE
586#endif
587#define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
588#define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
589#define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
590#define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
591
dc6dad9d
KW
592/*
593=for apidoc Amns||NOOP
594Do nothing; typically used as a placeholder to replace something that used to
595do something.
596
597=for apidoc Amns||dNOOP
598Declare nothing; typically used as a placeholder to replace something that used
599to declare something. Works on compilers that require declarations before any
600code.
601
602=cut
603*/
6f207bd3 604#define NOOP /*EMPTY*/(void)0
91ca80c3 605#define dNOOP struct Perl___notused_struct
71be2cbc 606
0cb96387 607#ifndef pTHX
a78adc84 608/* Don't bother defining tTHX ; using it outside
e8dda941
JD
609 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
610 */
0cb96387
GS
611# define pTHX void
612# define pTHX_
0cb96387
GS
613# define aTHX
614# define aTHX_
9399a70c 615# define aTHXa(a) NOOP
0cb96387
GS
616# define dTHXa(a) dNOOP
617# define dTHX dNOOP
894356b3
GS
618# define pTHX_1 1
619# define pTHX_2 2
620# define pTHX_3 3
621# define pTHX_4 4
3d42dc86
RGS
622# define pTHX_5 5
623# define pTHX_6 6
a3b680e6
AL
624# define pTHX_7 7
625# define pTHX_8 8
626# define pTHX_9 9
a6fc70e5 627# define pTHX_12 12
0cb96387
GS
628#endif
629
dc6dad9d 630/*
3f620621 631=for apidoc_section $concurrency
dc6dad9d
KW
632=for apidoc AmnU||dVAR
633This is now a synonym for dNOOP: declare nothing
634
635=cut
636*/
637
c91f661c 638#ifndef PERL_CORE
dc6dad9d
KW
639 /* Backwards compatibility macro for XS code. It used to be part of the
640 * PERL_GLOBAL_STRUCT(_PRIVATE) feature, which no longer exists */
27da23d5 641# define dVAR dNOOP
27da23d5 642
dc6dad9d
KW
643 /* these are only defined for compatibility; should not be used internally.
644 * */
645# ifndef pTHXo
646# define pTHXo pTHX
647# define pTHXo_ pTHX_
648# define aTHXo aTHX
649# define aTHXo_ aTHX_
650# define dTHXo dTHX
651# define dTHXoa(x) dTHXa(x)
652# endif
0cb96387
GS
653#endif
654
655#ifndef pTHXx
5aaab254 656# define pTHXx PerlInterpreter *my_perl
0cb96387 657# define pTHXx_ pTHXx,
0cb96387
GS
658# define aTHXx my_perl
659# define aTHXx_ aTHXx,
c5be433b 660# define dTHXx dTHX
22c35a8c 661#endif
71be2cbc 662
1de7c2ac
GS
663/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
664 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
665 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
666#ifdef PERL_IMPLICIT_SYS
27da23d5 667# define dTHXs dTHX
1de7c2ac 668#else
27da23d5 669# define dTHXs dNOOP
1de7c2ac
GS
670#endif
671
5b692037
JH
672#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
673# ifndef PERL_USE_GCC_BRACE_GROUPS
674# define PERL_USE_GCC_BRACE_GROUPS
675# endif
676#endif
677
728e2803 678/*
3f620621 679=for apidoc_section $directives
16a2918c 680=for apidoc AmnUu|void|STMT_START
6b30a08c 681=for apidoc_item ||STMT_END
16a2918c 682
6b30a08c
KW
683This allows a series of statements in a macro to be used as a single statement,
684as in
16a2918c 685
6b30a08c 686 if (x) STMT_START { ... } STMT_END else ...
16a2918c 687
6b30a08c
KW
688Note that you can't return a value out of them, which limits their utility.
689But see C<L</PERL_USE_GCC_BRACE_GROUPS>>.
16a2918c 690
2ed33a45
KW
691=for apidoc AmnuU|bool|PERL_USE_GCC_BRACE_GROUPS
692
693This C pre-processor value, if defined, indicates that it is permissible to use
6b30a08c
KW
694the GCC brace groups extension. This extension, of the form
695
696 ({ statement ... })
697
698turns the block consisting of I<statements ...> into an expression with a
699value, unlike plain C language blocks. This can present optimization
700possibilities, B<BUT> you generally need to specify an alternative in case this
701ability doesn't exist or has otherwise been forbidden.
702
703Example usage:
704
705=over
706
707 #ifdef PERL_USE_GCC_BRACE_GROUPS
708 ...
709 #else
710 ...
711 #endif
712
713=back
2ed33a45 714
16a2918c
KW
715=cut
716
717 Trying to select a version that gives no warnings...
718*/
728e2803 719#if !(defined(STMT_START) && defined(STMT_END))
5b692037 720# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 721# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
722# define STMT_END )
723# else
728e2803
PP
724# define STMT_START do
725# define STMT_END while (0)
728e2803
PP
726# endif
727#endif
728
d6f9c181
JH
729#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
730# define BYTEORDER 0x1234
79072805
LW
731#endif
732
8ada0baa
JH
733#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
734#define ASCIIish
735#else
736#undef ASCIIish
737#endif
738
79072805
LW
739/*
740 * The following contortions are brought to you on behalf of all the
741 * standards, semi-standards, de facto standards, not-so-de-facto standards
742 * of the world, as well as all the other botches anyone ever thought of.
743 * The basic theory is that if we work hard enough here, the rest of the
744 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
745 */
ac58e20f 746
ee0007ab 747/* define this once if either system, instead of cluttering up the src */
7c458fae 748#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
749#define DOSISH 1
750#endif
751
3d97541c 752/* These exist only for back-compat with XS modules. */
8162b70e 753#ifndef PERL_CORE
516e10a9 754#define VOL volatile
3d97541c 755#define CAN_PROTOTYPE
ae75e3d0 756#define _(args) args
6c2ae642 757#define I_LIMITS
36a113ce 758#define I_STDARG
6c2ae642 759#define STANDARD_C
8162b70e 760#endif
663a0e37 761
284167a5
SM
762/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
763 * you get a perl without taint support, but doubtlessly with a lesser
764 * degree of support. Do not do so unless you know exactly what it means
765 * technically, have a good reason to do so, and know exactly how the
766 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
767 * a potential security risk due to flat out ignoring the security-relevant
768 * taint flags. This being said, a perl without taint support compiled in
769 * has marginal run-time performance benefits.
770 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
771 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
772 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
773 *
774 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 775 * voids your nonexistent warranty!
284167a5 776 */
dc6d7f5c 777#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
778# define NO_TAINT_SUPPORT 1
779#endif
780
781/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
782 * operations into no-ops for a very modest speed-up. Enable only if you
783 * know what you're doing: tests and CPAN modules' tests are bound to fail.
784 */
dc6d7f5c 785#ifdef NO_TAINT_SUPPORT
284167a5
SM
786# define TAINT NOOP
787# define TAINT_NOT NOOP
788# define TAINT_IF(c) NOOP
789# define TAINT_ENV() NOOP
790# define TAINT_PROPER(s) NOOP
791# define TAINT_set(s) NOOP
792# define TAINT_get 0
793# define TAINTING_get 0
794# define TAINTING_set(s) NOOP
795# define TAINT_WARN_get 0
796# define TAINT_WARN_set(s) NOOP
797#else
bc2f1ca1 798 /* Set to tainted if we are running under tainting mode */
d48c660d 799# define TAINT (PL_tainted = PL_tainting)
bc2f1ca1
KW
800
801# define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
802# define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
2439e033 803# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
bc2f1ca1
KW
804 /* croak or warn if tainting */
805# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
806 taint_proper(NULL, s); \
807 }
284167a5 808# define TAINT_set(s) (PL_tainted = (s))
ea42b70b
TC
809# define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */
810# define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */
284167a5 811# define TAINTING_set(s) (PL_tainting = (s))
bc2f1ca1
KW
812# define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
813 are fatal
814 TRUE => they're just
815 warnings */
284167a5
SM
816# define TAINT_WARN_set(s) (PL_taint_warn = (s))
817#endif
a687059c 818
20be6587
DM
819/* flags used internally only within pp_subst and pp_substcont */
820#ifdef PERL_CORE
821# define SUBST_TAINT_STR 1 /* string tainted */
822# define SUBST_TAINT_PAT 2 /* pattern tainted */
823# define SUBST_TAINT_REPL 4 /* replacement tainted */
824# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
825# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
826#endif
827
d460ef45 828/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
829 defines move there? If so, I could simplify this a lot. --AD 9/96.
830*/
831/* Process group stuff changed from traditional BSD to POSIX.
832 perlfunc.pod documents the traditional BSD-style syntax, so we'll
833 try to preserve that, if possible.
834*/
835#ifdef HAS_SETPGID
836# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
da5fdda8
AC
837#elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
838# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
839#elif defined(HAS_SETPGRP2)
840# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
a6e633de
PP
841#endif
842#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
843# define HAS_SETPGRP /* Well, effectively it does . . . */
844#endif
845
846/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
847 our life easier :-) so we'll try it.
848*/
849#ifdef HAS_GETPGID
850# define BSD_GETPGRP(pid) getpgid((pid))
da5fdda8
AC
851#elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
852# define BSD_GETPGRP(pid) getpgrp((pid))
853#elif defined(HAS_GETPGRP2)
854# define BSD_GETPGRP(pid) getpgrp2((pid))
a6e633de
PP
855#endif
856#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
857# define HAS_GETPGRP /* Well, effectively it does . . . */
858#endif
859
d460ef45 860/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
861 have different behaviors, but perl.h used to define USE_BSDPGRP
862 (prior to 5.003_05) so some extension might depend on it.
863*/
864#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
865# ifndef USE_BSDPGRP
866# define USE_BSDPGRP
867# endif
663a0e37
LW
868#endif
869
486ec47a 870/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
871 pthread.h must be included before all other header files.
872*/
3db8f154 873#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
874# include <pthread.h>
875#endif
876
58ab9e8b 877#include <sys/types.h>
663a0e37 878
d2c9cb53
KW
879# ifdef I_WCHAR
880# include <wchar.h>
881# endif
882
9d82a2b7 883# include <stdarg.h>
760ac839 884
27db2737
JH
885#ifdef I_STDINT
886# include <stdint.h>
887#endif
888
fe14fcc3 889#include <ctype.h>
63b481b9
AC
890#include <float.h>
891#include <limits.h>
a0d0e21e
LW
892
893#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
894#undef METHOD
a0d0e21e
LW
895#endif
896
12ae5dfc
JH
897#ifdef PERL_MICRO
898# define NO_LOCALE
899#endif
900
4633a7c4 901#ifdef I_LOCALE
36477c24 902# include <locale.h>
4633a7c4
LW
903#endif
904
6ebbc862
KW
905#ifdef I_XLOCALE
906# include <xlocale.h>
907#endif
908
aa8a2baa
KW
909/* If not forbidden, we enable locale handling if either 1) the POSIX 2008
910 * functions are available, or 2) just the setlocale() function. This logic is
911 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
912 * sync. */
913#if ! defined(NO_LOCALE)
914
915# if ! defined(NO_POSIX_2008_LOCALE) \
916 && defined(HAS_NEWLOCALE) \
917 && defined(HAS_USELOCALE) \
918 && defined(HAS_DUPLOCALE) \
919 && defined(HAS_FREELOCALE) \
920 && defined(LC_ALL_MASK)
921
922 /* For simplicity, the code is written to assume that any platform advanced
923 * enough to have the Posix 2008 locale functions has LC_ALL. The final
924 * test above makes sure that assumption is valid */
925
926# define HAS_POSIX_2008_LOCALE
927# define USE_LOCALE
928# elif defined(HAS_SETLOCALE)
929# define USE_LOCALE
930# endif
931#endif
932
933#ifdef USE_LOCALE
ccd65d51 934# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
af573503 935 #define */
36477c24
PP
936# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
937 && defined(HAS_STRXFRM)
938# define USE_LOCALE_COLLATE
939# endif
940# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
941# define USE_LOCALE_CTYPE
942# endif
943# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
944# define USE_LOCALE_NUMERIC
945# endif
fa9b773e
KW
946# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
947# define USE_LOCALE_MESSAGES
948# endif
949# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
950# define USE_LOCALE_MONETARY
951# endif
56e45410
KW
952# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
953# define USE_LOCALE_TIME
954# endif
9821811f
KW
955# if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
956# define USE_LOCALE_ADDRESS
957# endif
958# if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
959# define USE_LOCALE_IDENTIFICATION
960# endif
961# if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
962# define USE_LOCALE_MEASUREMENT
963# endif
964# if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
965# define USE_LOCALE_PAPER
966# endif
967# if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
968# define USE_LOCALE_TELEPHONE
969# endif
36dbc955
KW
970# if !defined(NO_LOCALE_SYNTAX) && defined(LC_SYNTAX)
971# define USE_LOCALE_SYNTAX
972# endif
973# if !defined(NO_LOCALE_TOD) && defined(LC_TOD)
974# define USE_LOCALE_TOD
975# endif
a0d0e21e 976
5a53bf38
KW
977/* XXX The next few defines are unfortunately duplicated in makedef.pl, and
978 * changes here MUST also be made there */
979
aa8a2baa
KW
980# if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
981# define USE_POSIX_2008_LOCALE
982# ifndef USE_THREAD_SAFE_LOCALE
983# define USE_THREAD_SAFE_LOCALE
984# endif
e1895adc
KW
985 /* If compiled with
986 * -DUSE_THREAD_SAFE_LOCALE, will do so even
987 * on unthreaded builds */
aa8a2baa
KW
988# elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
989 && ( defined(HAS_POSIX_2008_LOCALE) \
990 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
991 && ! defined(NO_THREAD_SAFE_LOCALE)
e1895adc
KW
992# ifndef USE_THREAD_SAFE_LOCALE
993# define USE_THREAD_SAFE_LOCALE
994# endif
e9bc6d6b
KW
995# ifdef HAS_POSIX_2008_LOCALE
996# define USE_POSIX_2008_LOCALE
997# endif
998# endif
7f9e9632
KW
999#endif
1000
69c5e0db
KW
1001/* Microsoft documentation reads in the change log for VS 2015:
1002 * "The localeconv function declared in locale.h now works correctly when
1003 * per-thread locale is enabled. In previous versions of the library, this
1004 * function would return the lconv data for the global locale, not the
1005 * thread's locale."
1006 */
1007#if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
1008# define TS_W32_BROKEN_LOCALECONV
1009#endif
1010
fe14fcc3 1011#include <setjmp.h>
79072805 1012
a0d0e21e 1013#ifdef I_SYS_PARAM
79072805
LW
1014# ifdef PARAM_NEEDS_TYPES
1015# include <sys/types.h>
1016# endif
1017# include <sys/param.h>
352d5a3a 1018#endif
79072805 1019
ce3470dc
AD
1020/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
1021 value something like 199306. This may be useful if no more-specific
1022 feature test is available.
1023*/
1024#if defined(BSD)
1025# ifndef BSDish
1026# define BSDish
1027# endif
1028#endif
1029
dd512de3
AC
1030/* Use all the "standard" definitions */
1031#include <stdlib.h>
03a14243 1032
3f270f98
JH
1033/* If this causes problems, set i_unistd=undef in the hint file. */
1034#ifdef I_UNISTD
763ee752
AB
1035# if defined(__amigaos4__)
1036# ifdef I_NETINET_IN
1037# include <netinet/in.h>
1038# endif
1039# endif
3f270f98 1040# include <unistd.h>
6e3136a6
AB
1041# if defined(__amigaos4__)
1042/* Under AmigaOS 4 newlib.library provides an environ. However using
1043 * it doesn't give us enough control over inheritance of variables by
1044 * subshells etc. so replace with custom version based on abc-shell
1045 * code. */
1046extern char **myenviron;
1047# undef environ
1048# define environ myenviron
1049# endif
3f270f98
JH
1050#endif
1051
de8ca8af
NT
1052/* for WCOREDUMP */
1053#ifdef I_SYS_WAIT
1054# include <sys/wait.h>
1055#endif
1056
21e89b5f 1057#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 1058EXTERN_C int syscall(int, ...);
2ef53570
JH
1059#endif
1060
21e89b5f 1061#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 1062EXTERN_C int usleep(unsigned int);
2ef53570
JH
1063#endif
1064
ca336c50 1065/* Macros for correct constant construction. These are in C99 <stdint.h>
f2f9e01d 1066 * (so they will not be available in strict C89 mode), but they are nice, so
ca336c50 1067 * let's define them if necessary.
3f620621 1068=for apidoc_section $integer
ca336c50
KW
1069=for apidoc Am|I16|INT16_C|number
1070=for apidoc_item |I32|INT32_C|number
1071=for apidoc_item |I64|INT64_C|number
1072
1073Returns a token the C compiler recognizes for the constant C<number> of the
1074corresponding integer type on the machine.
1075
1076If the machine does not have a 64-bit type, C<INT64_C> is undefined.
23f5c29f 1077Use C<L</INTMAX_C>> to get the largest type available on the platform.
ca336c50
KW
1078
1079=for apidoc Am|U16|UINT16_C|number
1080=for apidoc_item |U32|UINT32_C|number
1081=for apidoc_item |U64|UINT64_C|number
1082
1083Returns a token the C compiler recognizes for the constant C<number> of the
1084corresponding unsigned integer type on the machine.
1085
1086If the machine does not have a 64-bit type, C<UINT64_C> is undefined.
23f5c29f 1087Use C<L</UINTMAX_C>> to get the largest type available on the platform.
ca336c50
KW
1088
1089
1090=cut
1091*/
f2f9e01d
KW
1092#ifndef UINT16_C
1093# if INTSIZE >= 2
1094# define UINT16_C(x) ((U16_TYPE)x##U)
1095# else
1096# define UINT16_C(x) ((U16_TYPE)x##UL)
1097# endif
1098#endif
1109a392 1099
f2f9e01d
KW
1100#ifndef UINT32_C
1101# if INTSIZE >= 4
1102# define UINT32_C(x) ((U32_TYPE)x##U)
1103# else
1104# define UINT32_C(x) ((U32_TYPE)x##UL)
1105# endif
1106#endif
1109a392 1107
f2f9e01d
KW
1108#ifdef I_STDINT
1109 typedef intmax_t PERL_INTMAX_T;
1110 typedef uintmax_t PERL_UINTMAX_T;
1111#endif
1112
1113/* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
1114 * actually mean what it has always been documented to mean (see RT #119753)
1115 * and is explicitly turned off outside of core with dire warnings about
1116 * removing the undef. */
1117
1118#if defined(QUADKIND)
1119# undef PeRl_INT64_C
1120# undef PeRl_UINT64_C
1121/* Prefer the native integer types (int and long) over long long
1122 * (which is not C89) and Win32-specific __int64. */
1123# if QUADKIND == QUAD_IS_INT && INTSIZE == 8
1124# define PeRl_INT64_C(c) (c)
1125# define PeRl_UINT64_C(c) CAT2(c,U)
1126# endif
1127# if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
1128# define PeRl_INT64_C(c) CAT2(c,L)
1129# define PeRl_UINT64_C(c) CAT2(c,UL)
1130# endif
1131# if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
1132# define PeRl_INT64_C(c) CAT2(c,LL)
1133# define PeRl_UINT64_C(c) CAT2(c,ULL)
1134# endif
1135# if QUADKIND == QUAD_IS___INT64
1136# define PeRl_INT64_C(c) CAT2(c,I64)
1137# define PeRl_UINT64_C(c) CAT2(c,UI64)
1138# endif
1139# ifndef PeRl_INT64_C
1140# define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
1141# define PeRl_UINT64_C(c) ((U64TYPE)(c))
1142# endif
1143/* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
1144 * not fly with C89-pedantic gcc, so let's undefine them first so that
1145 * we can redefine them with our native integer preferring versions. */
1146# if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
1147# undef INT64_C
1148# undef UINT64_C
1149# endif
1150# ifndef INT64_C
1151# define INT64_C(c) PeRl_INT64_C(c)
1152# endif
1153# ifndef UINT64_C
1154# define UINT64_C(c) PeRl_UINT64_C(c)
1155# endif
1109a392 1156
ebaa1d42 1157/*
3f620621 1158=for apidoc_section $integer
ebaa1d42
KW
1159=for apidoc Am||INTMAX_C|number
1160Returns a token the C compiler recognizes for the constant C<number> of the
1161widest integer type on the machine. For example, if the machine has C<long
1162long>s, C<INTMAX_C(-1)> would yield
1163
1164 -1LL
1165
23f5c29f
KW
1166See also, for example, C<L</INT32_C>>.
1167
1168Use L</IV> to declare variables of the maximum usable size on this platform.
1169
ebaa1d42
KW
1170=for apidoc Am||UINTMAX_C|number
1171Returns a token the C compiler recognizes for the constant C<number> of the
1172widest unsigned integer type on the machine. For example, if the machine has
1173C<long>s, C<UINTMAX_C(1)> would yield
1174
1175 1UL
1176
23f5c29f
KW
1177See also, for example, C<L</UINT32_C>>.
1178
1179Use L</UV> to declare variables of the maximum usable size on this platform.
1180
ebaa1d42
KW
1181=cut
1182*/
1183
f2f9e01d
KW
1184# ifndef I_STDINT
1185 typedef I64TYPE PERL_INTMAX_T;
1186 typedef U64TYPE PERL_UINTMAX_T;
1109a392 1187# endif
f2f9e01d
KW
1188# ifndef INTMAX_C
1189# define INTMAX_C(c) INT64_C(c)
1190# endif
1191# ifndef UINTMAX_C
1192# define UINTMAX_C(c) UINT64_C(c)
1193# endif
1194
1195#else /* below QUADKIND is undefined */
1196
1197/* Perl doesn't work on 16 bit systems, so must be 32 bit */
1198# ifndef I_STDINT
1199 typedef I32TYPE PERL_INTMAX_T;
1200 typedef U32TYPE PERL_UINTMAX_T;
1201# endif
1202# ifndef INTMAX_C
1203# define INTMAX_C(c) INT32_C(c)
1204# endif
1205# ifndef UINTMAX_C
1206# define UINTMAX_C(c) UINT32_C(c)
1207# endif
1208
1209#endif /* no QUADKIND */
1210
1211#ifdef PERL_CORE
1109a392
MHM
1212
1213/* byte-swapping functions for big-/little-endian conversion */
1214# define _swab_16_(x) ((U16)( \
f2f9e01d
KW
1215 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
1216 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1109a392
MHM
1217
1218# define _swab_32_(x) ((U32)( \
f2f9e01d
KW
1219 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
1220 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
1221 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
1222 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1109a392
MHM
1223
1224# ifdef HAS_QUAD
1225# define _swab_64_(x) ((U64)( \
f2f9e01d
KW
1226 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
1227 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
1228 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1229 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1230 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1231 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1232 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1233 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1109a392
MHM
1234# endif
1235
9c17f24a
NC
1236/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1237 at least on FreeBSD. YMMV, so experiment. */
1238#ifndef PERL_ARENA_SIZE
1239#define PERL_ARENA_SIZE 4080
1240#endif
1241
ccb2c8b8 1242/* Maximum level of recursion */
2b9dff67
RGS
1243#ifndef PERL_SUB_DEPTH_WARN
1244#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
1245#endif
1246
1109a392
MHM
1247#endif /* PERL_CORE */
1248
e839e6ed
DM
1249/* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1250 * It determines the size of local arrays in S_maybe_multiconcat() and
1251 * pp_multiconcat().
1252 */
1253#define PERL_MULTICONCAT_MAXARG 64
1254
1255/* The indexes of fields of a multiconcat aux struct.
1256 * The fixed fields are followed by nargs+1 const segment lengths,
1257 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1258 */
1259
1260#define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1261#define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1262#define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1263#define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1264#define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1265#define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1266#define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1267 multiconcat header */
1268
bdf3085f
NC
1269/* We no longer default to creating a new SV for GvSV.
1270 Do this before embed. */
1271#ifndef PERL_CREATE_GVSV
7459f06b
NC
1272# ifndef PERL_DONT_CREATE_GVSV
1273# define PERL_DONT_CREATE_GVSV
1274# endif
bdf3085f
NC
1275#endif
1276
ca0c25f6
NC
1277#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1278#define PERL_USES_PL_PIDSTATUS
1279#endif
1280
822c8b4d 1281#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP)
a62746fa
RGS
1282#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1283#endif
1284
c31fac66
GS
1285#define MEM_SIZE Size_t
1286
1936d2a7
NC
1287/* Round all values passed to malloc up, by default to a multiple of
1288 sizeof(size_t)
1289*/
1290#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1291#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1292#endif
1293
f1200559
WH
1294/* sv_grow() will expand strings by at least a certain percentage of
1295 the previously *used* length to avoid excessive calls to realloc().
1296 The default is 25% of the current length.
1297*/
1298#ifndef PERL_STRLEN_EXPAND_SHIFT
1299# define PERL_STRLEN_EXPAND_SHIFT 2
1300#endif
1301
4bd4e933
SH
1302/* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1303 * onwards) when building Socket.xs, but we can just use a different definition
1304 * for STRUCT_OFFSET instead. */
1305#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1306# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1307#else
1308# include <stddef.h>
1309# define STRUCT_OFFSET(s,m) offsetof(s,m)
1310#endif
d0b86e2f 1311
86477e89
KW
1312/* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1313 * in C89, but apparently there are platforms where it doesn't exist. See
1314 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1315 * */
d0b86e2f
BF
1316#ifdef PERL_GCC_PEDANTIC
1317# undef HAS_PTRDIFF_T
51371543
GS
1318#endif
1319
86477e89
KW
1320#ifdef HAS_PTRDIFF_T
1321# define Ptrdiff_t ptrdiff_t
1322#else
1323# define Ptrdiff_t SSize_t
1324#endif
1325
d54fbe84 1326# include <string.h>
51371543 1327
55497cff
PP
1328/* This comes after <stdlib.h> so we don't try to change the standard
1329 * library prototypes; we'll use our own in proto.h instead. */
03a14243 1330
4633a7c4 1331#ifdef MYMALLOC
86058a2d 1332# ifdef PERL_POLLUTE_MALLOC
ee13e175 1333# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
1334# define Perl_malloc malloc
1335# define Perl_calloc calloc
1336# define Perl_realloc realloc
1337# define Perl_mfree free
ee13e175 1338# endif
86058a2d
GS
1339# else
1340# define EMBEDMYMALLOC /* for compatibility */
1341# endif
827e134a 1342
651b9576
GS
1343# define safemalloc Perl_malloc
1344# define safecalloc Perl_calloc
1345# define saferealloc Perl_realloc
1346# define safefree Perl_mfree
22f7c9c9 1347# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
54725a52 1348 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
22f7c9c9
JH
1349 code; \
1350 } STMT_END
1351# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1352 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1353# define panic_write2(s) write(2, s, strlen(s))
1354# define CHECK_MALLOC_TAINT(newval) \
1355 CHECK_MALLOC_TOO_LATE_FOR_( \
1356 if (newval) { \
acfd4d8e 1357 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 1358 exit(1); })
22f7c9c9 1359# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 1360 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
1361 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1362 }} STMT_END;
f2517201
GS
1363#else /* MYMALLOC */
1364# define safemalloc safesysmalloc
1365# define safecalloc safesyscalloc
1366# define saferealloc safesysrealloc
1367# define safefree safesysfree
22f7c9c9
JH
1368# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1369# define CHECK_MALLOC_TAINT(newval) ((void)0)
1370# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 1371#endif /* MYMALLOC */
4633a7c4 1372
fe13d51d 1373/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 1374#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)
22f7c9c9
JH
1375#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1376#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1377#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1378
fc36a67e 1379#ifndef memzero
04322328 1380# define memzero(d,l) memset(d,0,l)
d9d8d8de 1381#endif
378cc40b 1382
ae986130 1383#ifdef I_NETINET_IN
79072805 1384# include <netinet/in.h>
ae986130
LW
1385#endif
1386
28e8609d
JH
1387#ifdef I_ARPA_INET
1388# include <arpa/inet.h>
1389#endif
1390
1aef975c 1391#ifdef I_SYS_STAT
84902520 1392# include <sys/stat.h>
1aef975c 1393#endif
79072805 1394
287a962e
JD
1395/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1396 This definition should ideally go into win32/win32.h, but S_IFIFO is
1397 used later here in perl.h before win32/win32.h is being included. */
1398#if !defined(S_IFIFO) && defined(_S_IFIFO)
1399# define S_IFIFO _S_IFIFO
1400#endif
1401
cc3315ba 1402/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1403 like UTekV) are broken, sometimes giving false positives. Undefine
1404 them here and let the code below set them to proper values.
1405
1406 The ghs macro stands for GreenHills Software C-1.8.5 which
1407 is the C compiler for sysV88 and the various derivatives.
1408 This header file bug is corrected in gcc-2.5.8 and later versions.
1409 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1410
cc3315ba 1411#if defined(m88k) && defined(ghs)
79072805
LW
1412# undef S_ISDIR
1413# undef S_ISCHR
1414# undef S_ISBLK
1415# undef S_ISREG
1416# undef S_ISFIFO
1417# undef S_ISLNK
ee0007ab 1418#endif
135863df 1419
9245da2a 1420#include <time.h>
663a0e37 1421
fe14fcc3 1422#ifdef I_SYS_TIME
85e6fe83 1423# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1424# define KERNEL
1425# endif
1426# include <sys/time.h>
85e6fe83 1427# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1428# undef KERNEL
1429# endif
a687059c 1430#endif
135863df 1431
55497cff 1432#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1433# include <sys/times.h>
d9d8d8de 1434#endif
8d063cd8 1435
663a0e37 1436#include <errno.h>
1e743fda 1437
acfe0abc 1438#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1439# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1440#endif
1441
da70cfc6 1442#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1443# include <sys/socket.h>
1444# if defined(USE_SOCKS) && defined(I_SOCKS)
1445# if !defined(INCLUDE_PROTOTYPES)
1446# define INCLUDE_PROTOTYPES /* for <socks.h> */
1447# define PERL_SOCKS_NEED_PROTOTYPES
1448# endif
1449# include <socks.h>
1450# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1451# undef INCLUDE_PROTOTYPES
1452# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1453# endif
d460ef45 1454# endif
1e743fda 1455# ifdef I_NETDB
2986a63f
JH
1456# ifdef NETWARE
1457# include<stdio.h>
1458# endif
1e743fda
JH
1459# include <netdb.h>
1460# endif
1461# ifndef ENOTSOCK
1462# ifdef I_NET_ERRNO
1463# include <net/errno.h>
1464# endif
1465# endif
1466#endif
1467
fa0a29af 1468/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1469 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1470 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1471#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1472# if defined(__THROW) && defined(__GLIBC__)
1473int sockatmark(int) __THROW;
1474# else
2ef53570 1475int sockatmark(int);
29820b6d 1476# endif
2ef53570
JH
1477#endif
1478
7e827271 1479#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. */
45d3b546
JH
1480EXTERN_C int fchdir(int);
1481EXTERN_C int flock(int, int);
1482EXTERN_C int fseeko(FILE *, off_t, int);
1483EXTERN_C off_t ftello(FILE *);
1484#endif
1485
7e827271 1486#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d
JH
1487EXTERN_C char *crypt(const char *, const char *);
1488#endif
1489
a54aca4b 1490#if defined(__cplusplus) && defined(__CYGWIN__)
667e2948
SP
1491EXTERN_C char *crypt(const char *, const char *);
1492#endif
1493
131e4949 1494/*
3f620621 1495=for apidoc_section $errno
131e4949
TC
1496
1497=for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1498
1499Set C<errno>, and on VMS set C<vaxc$errno>.
1500
1501=for apidoc mn|void|dSAVEDERRNO
1502
1503Declare variables needed to save C<errno> and any operating system
1504specific error number.
1505
1506=for apidoc mn|void|dSAVE_ERRNO
1507
1508Declare variables needed to save C<errno> and any operating system
1509specific error number, and save them for optional later restoration
1510by C<RESTORE_ERRNO>.
1511
1512=for apidoc mn|void|SAVE_ERRNO
1513
1514Save C<errno> and any operating system specific error number for
1515optional later restoration by C<RESTORE_ERRNO>. Requires
1516C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1517
1518=for apidoc mn|void|RESTORE_ERRNO
1519
1520Restore C<errno> and any operating system specific error number that
1521was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1522
1523=cut
1524*/
1525
1e743fda
JH
1526#ifdef SETERRNO
1527# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1528#endif
f86702cc
PP
1529
1530#ifdef VMS
1531# define SETERRNO(errcode,vmserrcode) \
1532 STMT_START { \
1533 set_errno(errcode); \
1534 set_vaxc_errno(vmserrcode); \
1535 } STMT_END
4ee39169
CS
1536# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1537# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1538# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1539# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1540
93189314
JH
1541# define LIB_INVARG LIB$_INVARG
1542# define RMS_DIR RMS$_DIR
1543# define RMS_FAC RMS$_FAC
1544# define RMS_FEX RMS$_FEX
1545# define RMS_FNF RMS$_FNF
1546# define RMS_IFI RMS$_IFI
1547# define RMS_ISI RMS$_ISI
1548# define RMS_PRV RMS$_PRV
1549# define SS_ACCVIO SS$_ACCVIO
1550# define SS_DEVOFFLINE SS$_DEVOFFLINE
1551# define SS_IVCHAN SS$_IVCHAN
1552# define SS_NORMAL SS$_NORMAL
8a9f18be 1553# define SS_NOPRIV SS$_NOPRIV
4388f261 1554# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1555#else
93189314
JH
1556# define LIB_INVARG 0
1557# define RMS_DIR 0
1558# define RMS_FAC 0
1559# define RMS_FEX 0
1560# define RMS_FNF 0
1561# define RMS_IFI 0
1562# define RMS_ISI 0
1563# define RMS_PRV 0
1564# define SS_ACCVIO 0
1565# define SS_DEVOFFLINE 0
1566# define SS_IVCHAN 0
1567# define SS_NORMAL 0
8a9f18be 1568# define SS_NOPRIV 0
4388f261 1569# define SS_BUFFEROVF 0
748a9306 1570#endif
ed6116ce 1571
6ca940a9
TC
1572#ifdef WIN32
1573# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1574# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1575# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1576# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1577#endif
1578
1579#ifdef OS2
1580# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1581# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1582# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1583# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1584#endif
1585
1586#ifndef SETERRNO
1587# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1588#endif
1589
1590#ifndef dSAVEDERRNO
1591# define dSAVEDERRNO int saved_errno
1592# define dSAVE_ERRNO int saved_errno = errno
1593# define SAVE_ERRNO (saved_errno = errno)
1594# define RESTORE_ERRNO (errno = saved_errno)
1595#endif
1596
40bec302 1597/*
3f620621 1598=for apidoc_section $warning
40bec302
TC
1599
1600=for apidoc Amn|SV *|ERRSV
1601
1602Returns the SV for C<$@>, creating it if needed.
1603
1604=for apidoc Am|void|CLEAR_ERRSV
1605
1606Clear the contents of C<$@>, setting it to the empty string.
1607
1608This replaces any read-only SV with a fresh SV and removes any magic.
1609
933e3e63
TC
1610=for apidoc Am|void|SANE_ERRSV
1611
1612Clean up ERRSV so we can safely set it.
1613
1614This replaces any read-only SV with a fresh writable copy and removes
1615any magic.
1616
40bec302
TC
1617=cut
1618*/
1619
f5fa9033 1620#define ERRSV GvSVn(PL_errgv)
dfd167e9 1621
b4f8d149 1622/* contains inlined gv_add_by_type */
dfd167e9 1623#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD
1624 SV ** const svp = &GvSV(PL_errgv); \
1625 if (!*svp) { \
a1b60c8d 1626 *svp = newSVpvs(""); \
b4f8d149
DD
1627 } else if (SvREADONLY(*svp)) { \
1628 SvREFCNT_dec_NN(*svp); \
b4f8d149 1629 *svp = newSVpvs(""); \
dfd167e9 1630 } else { \
b4f8d149 1631 SV *const errsv = *svp; \
a1b60c8d 1632 SvPVCLEAR(errsv); \
b4f8d149 1633 SvPOK_only(errsv); \
dfd167e9
NC
1634 if (SvMAGICAL(errsv)) { \
1635 mg_free(errsv); \
1636 } \
dfd167e9
NC
1637 } \
1638 } STMT_END
1639
933e3e63
TC
1640/* contains inlined gv_add_by_type */
1641#define SANE_ERRSV() STMT_START { \
1642 SV ** const svp = &GvSV(PL_errgv); \
1643 if (!*svp) { \
1644 *svp = newSVpvs(""); \
1645 } else if (SvREADONLY(*svp)) { \
1646 SV *dupsv = newSVsv(*svp); \
1647 SvREFCNT_dec_NN(*svp); \
1648 *svp = dupsv; \
1649 } else { \
1650 SV *const errsv = *svp; \
1651 if (SvMAGICAL(errsv)) { \
1652 mg_free(errsv); \
1653 } \
1654 } \
1655 } STMT_END
1656
dfd167e9 1657
414bf5ae
MHM
1658#ifdef PERL_CORE
1659# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1660# define DEFSV_set(sv) \
1661 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1662# define SAVE_DEFSV \
1663 ( \
1664 save_gp(PL_defgv, 0), \
1665 GvINTRO_off(PL_defgv), \
1666 SAVEGENERICSV(GvSV(PL_defgv)), \
1667 GvSV(PL_defgv) = NULL \
1668 )
414bf5ae
MHM
1669#else
1670# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1671# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1672# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1673#endif
ed07b037
KW
1674
1675/*
3f620621 1676=for apidoc_section $SV
ed07b037
KW
1677=for apidoc Amn|SV *|DEFSV
1678Returns the SV associated with C<$_>
1679
1680=for apidoc Am|void|DEFSV_set|SV * sv
1681Associate C<sv> with C<$_>
1682
1683=for apidoc Amn|void|SAVE_DEFSV
1684Localize C<$_>. See L<perlguts/Localizing changes>.
1685
1686=cut
1687*/
38a03e6e 1688
55497cff 1689#ifndef errno
5ff3f7a4
GS
1690 extern int errno; /* ANSI allows errno to be an lvalue expr.
1691 * For example in multithreaded environments
1692 * something like this might happen:
1693 * extern int *_errno(void);
1694 * #define errno (*_errno()) */
d9d8d8de 1695#endif
663a0e37 1696
7e996671
KW
1697#define UNKNOWN_ERRNO_MSG "(unknown)"
1698
d1747a5a 1699#ifdef VMS
b21d8587
AC
1700#define Strerror(e) strerror((e), vaxc$errno)
1701#else
1702#define Strerror(e) strerror(e)
35c8bce7 1703#endif
663a0e37 1704
2304df62 1705#ifdef I_SYS_IOCTL
79072805
LW
1706# ifndef _IOCTL_
1707# include <sys/ioctl.h>
1708# endif
a687059c
LW
1709#endif
1710
ee0007ab 1711#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1712# ifdef HAS_SOCKETPAIR
1713# undef HAS_SOCKETPAIR
1714# endif
2304df62
AD
1715# ifdef I_NDBM
1716# undef I_NDBM
79072805 1717# endif
a687059c
LW
1718#endif
1719
02fc2eee
NC
1720#ifndef HAS_SOCKETPAIR
1721# ifdef HAS_SOCKET
1722# define socketpair Perl_my_socketpair
1723# endif
1724#endif
1725
a687059c 1726#if INTSIZE == 2
79072805
LW
1727# define htoni htons
1728# define ntohi ntohs
a687059c 1729#else
79072805
LW
1730# define htoni htonl
1731# define ntohi ntohl
a687059c
LW
1732#endif
1733
a0d0e21e 1734/* Configure already sets Direntry_t */
35c8bce7 1735#if defined(I_DIRENT)
da5fdda8
AC
1736# include <dirent.h>
1737#elif defined(I_SYS_NDIR)
1738# include <sys/ndir.h>
1739#elif defined(I_SYS_DIR)
1740# include <sys/dir.h>
4633a7c4 1741#endif
a687059c 1742
c623bd54
LW
1743/*
1744 * The following gobbledygook brought to you on behalf of __STDC__.
1745 * (I could just use #ifndef __STDC__, but this is more bulletproof
1746 * in the face of half-implementations.)
1747 */
1748
21e89b5f 1749#if defined(I_SYSMODE)
ca6e1c26
JH
1750#include <sys/mode.h>
1751#endif
1752
c623bd54
LW
1753#ifndef S_IFMT
1754# ifdef _S_IFMT
1755# define S_IFMT _S_IFMT
1756# else
1757# define S_IFMT 0170000
1758# endif
1759#endif
1760
1761#ifndef S_ISDIR
1762# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1763#endif
1764
1765#ifndef S_ISCHR
1766# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1767#endif
1768
1769#ifndef S_ISBLK
fe14fcc3
LW
1770# ifdef S_IFBLK
1771# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1772# else
1773# define S_ISBLK(m) (0)
1774# endif
c623bd54
LW
1775#endif
1776
1777#ifndef S_ISREG
1778# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1779#endif
1780
1781#ifndef S_ISFIFO
fe14fcc3
LW
1782# ifdef S_IFIFO
1783# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1784# else
1785# define S_ISFIFO(m) (0)
1786# endif
c623bd54
LW
1787#endif
1788
1789#ifndef S_ISLNK
da5fdda8
AC
1790# ifdef _S_ISLNK
1791# define S_ISLNK(m) _S_ISLNK(m)
1792# elif defined(_S_IFLNK)
1793# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1794# elif defined(S_IFLNK)
1795# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1796# else
1797# define S_ISLNK(m) (0)
1798# endif
c623bd54
LW
1799#endif
1800
1801#ifndef S_ISSOCK
da5fdda8
AC
1802# ifdef _S_ISSOCK
1803# define S_ISSOCK(m) _S_ISSOCK(m)
1804# elif defined(_S_IFSOCK)
1805# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1806# elif defined(S_IFSOCK)
1807# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1808# else
1809# define S_ISSOCK(m) (0)
1810# endif
c623bd54
LW
1811#endif
1812
1813#ifndef S_IRUSR
1814# ifdef S_IREAD
1815# define S_IRUSR S_IREAD
1816# define S_IWUSR S_IWRITE
1817# define S_IXUSR S_IEXEC
1818# else
1819# define S_IRUSR 0400
1820# define S_IWUSR 0200
1821# define S_IXUSR 0100
1822# endif
fac7cdfc 1823#endif
1824
1825#ifndef S_IRGRP
1826# ifdef S_IRUSR
1827# define S_IRGRP (S_IRUSR>>3)
1828# define S_IWGRP (S_IWUSR>>3)
1829# define S_IXGRP (S_IXUSR>>3)
1830# else
1831# define S_IRGRP 0040
1832# define S_IWGRP 0020
1833# define S_IXGRP 0010
1834# endif
1835#endif
1836
1837#ifndef S_IROTH
1838# ifdef S_IRUSR
1839# define S_IROTH (S_IRUSR>>6)
1840# define S_IWOTH (S_IWUSR>>6)
1841# define S_IXOTH (S_IXUSR>>6)
1842# else
1843# define S_IROTH 0040
1844# define S_IWOTH 0020
1845# define S_IXOTH 0010
1846# endif
c623bd54
LW
1847#endif
1848
1849#ifndef S_ISUID
1850# define S_ISUID 04000
1851#endif
1852
1853#ifndef S_ISGID
1854# define S_ISGID 02000
1855#endif
1856
ca6e1c26
JH
1857#ifndef S_IRWXU
1858# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1859#endif
ca6e1c26
JH
1860
1861#ifndef S_IRWXG
1862# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1863#endif
ca6e1c26
JH
1864
1865#ifndef S_IRWXO
1866# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1867#endif
ca6e1c26 1868
b6c36746 1869/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1870 * which would get included through <sys/file.h >, but that is 3000
1871 * lines in the future. --jhi */
1872
b6c36746 1873#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1874# define S_IREAD S_IRUSR
1875#endif
1876
b6c36746 1877#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1878# define S_IWRITE S_IWUSR
1879#endif
1880
1881#ifndef S_IEXEC
1882# define S_IEXEC S_IXUSR
1883#endif
1884
a0d0e21e 1885#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1886# define SLOPPYDIVIDE
1887#endif
1888
748a9306
LW
1889#ifdef UV
1890#undef UV
1891#endif
1892
f1519f70
AC
1893/* This used to be conditionally defined based on whether we had a sprintf()
1894 * that correctly returns the string length (as required by C89), but we no
1895 * longer need that. XS modules can (and do) use this name, so it must remain
558a6899
KW
1896 * a part of the API that's visible to modules.
1897
3f620621 1898=for apidoc_section $string
558a6899
KW
1899=for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|...
1900
1901Do NOT use this due to the possibility of overflowing C<buffer>. Instead use
1902my_snprintf()
1903
1904=cut
1905*/
f1519f70 1906#define my_sprintf sprintf
ce582cee 1907
5b692037
JH
1908/*
1909 * If we have v?snprintf() and the C99 variadic macros, we can just
1910 * use just the v?snprintf(). It is nice to try to trap the buffer
1911 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1912 * gcc statement expressions, then use the function wrappers which try
1913 * to trap the overflow. If we can use the gcc statement expressions,
1914 * we can try that even with the version that uses the C99 variadic
1915 * macros.
5b692037
JH
1916 */
1917
1208b3dd 1918/* Note that we do not check against snprintf()/vsnprintf() returning
4059ba87
AC
1919 * negative values because that is non-standard behaviour and we use
1920 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1921 * that should be true only if the snprintf()/vsnprintf() are true
1922 * to the standard. */
1208b3dd 1923
571ee10c 1924#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
e8549682 1925
a4eca1d4
JH
1926#ifdef USE_QUADMATH
1927# define my_snprintf Perl_my_snprintf
1928# define PERL_MY_SNPRINTF_GUARDED
4059ba87 1929#elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1930# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1931# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1932# define PERL_MY_SNPRINTF_GUARDED
5b692037 1933# else
e8549682 1934# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1935# endif
1936#else
1937# define my_snprintf Perl_my_snprintf
1208b3dd 1938# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1939#endif
1940
a4eca1d4
JH
1941/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1942 * dies if called under USE_QUADMATH. */
4059ba87 1943#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1944# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1945# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1946# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1947# else
e8549682 1948# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1949# endif
1950#else
1951# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1952# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1953#endif
d9fad198 1954
e8549682
JH
1955/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1956 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1957 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1958 * completely ignore it: otherwise you cannot know whether your output
1959 * was too long.)
1960 *
1961 * int len = my_sprintf(buf, max, ...);
1962 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1963 *
1964 * The trick is that in certain platforms [a] the my_sprintf() already
1965 * contains the sanity check, while in certain platforms [b] it needs
1966 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1967 * platforms the POST_GUARD actually does nothing since the check has
1968 * already been done. Watch out for the max being the same in both calls.
1969 *
1970 * If you actually use the snprintf/vsnprintf return value already,
1971 * you assumedly are checking its validity somehow. But you can
1972 * insert the POST_GUARD() also in that case. */
1973
1974#ifndef PERL_MY_SNPRINTF_GUARDED
1975# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1976#else
1977# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1978#endif
1979
1980#ifndef PERL_MY_VSNPRINTF_GUARDED
1981# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1982#else
1983# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1984#endif
1985
a6cc4119
SP
1986#ifdef HAS_STRLCAT
1987# define my_strlcat strlcat
a6cc4119
SP
1988#endif
1989
6dba01e2
KW
1990#if defined(PERL_CORE) || defined(PERL_EXT)
1991# ifdef HAS_MEMRCHR
1992# define my_memrchr memrchr
1993# else
1994# define my_memrchr S_my_memrchr
1995# endif
1996#endif
1997
a6cc4119
SP
1998#ifdef HAS_STRLCPY
1999# define my_strlcpy strlcpy
a6cc4119
SP
2000#endif
2001
aefb3fa0
DIM
2002#ifdef HAS_STRNLEN
2003# define my_strnlen strnlen
aefb3fa0
DIM
2004#endif
2005
05f13f53 2006/*
27d4fb96
PP
2007 The IV type is supposed to be long enough to hold any integral
2008 value or a pointer.
2009 --Andy Dougherty August 1996
2010*/
2011
a22e52b9
JH
2012typedef IVTYPE IV;
2013typedef UVTYPE UV;
8175356b 2014
10cc9d2a 2015#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 2016# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
bf51a9b9
TC
2017# define IV_MAX ((IV)INT64_MAX)
2018# define IV_MIN ((IV)INT64_MIN)
2019# define UV_MAX ((UV)UINT64_MAX)
cae7ae48
JH
2020# ifndef UINT64_MIN
2021# define UINT64_MIN 0
2022# endif
bf51a9b9 2023# define UV_MIN ((UV)UINT64_MIN)
5ff3f7a4
GS
2024# else
2025# define IV_MAX PERL_QUAD_MAX
2026# define IV_MIN PERL_QUAD_MIN
2027# define UV_MAX PERL_UQUAD_MAX
2028# define UV_MIN PERL_UQUAD_MIN
2029# endif
cf2093f6
JH
2030# define IV_IS_QUAD
2031# define UV_IS_QUAD
79072805 2032#else
8175356b 2033# if defined(INT32_MAX) && IVSIZE == 4
bf51a9b9
TC
2034# define IV_MAX ((IV)INT32_MAX)
2035# define IV_MIN ((IV)INT32_MIN)
716026f9 2036# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
bf51a9b9 2037# define UV_MAX ((UV)UINT32_MAX)
716026f9 2038# else
bf51a9b9 2039# define UV_MAX ((UV)4294967295U)
716026f9 2040# endif
cae7ae48
JH
2041# ifndef UINT32_MIN
2042# define UINT32_MIN 0
2043# endif
bf51a9b9 2044# define UV_MIN ((UV)UINT32_MIN)
5ff3f7a4
GS
2045# else
2046# define IV_MAX PERL_LONG_MAX
2047# define IV_MIN PERL_LONG_MIN
2048# define UV_MAX PERL_ULONG_MAX
2049# define UV_MIN PERL_ULONG_MIN
2050# endif
8175356b 2051# if IVSIZE == 8
cf2093f6
JH
2052# define IV_IS_QUAD
2053# define UV_IS_QUAD
de1c2614
JH
2054# ifndef HAS_QUAD
2055# define HAS_QUAD
2056# endif
cf2093f6
JH
2057# else
2058# undef IV_IS_QUAD
2059# undef UV_IS_QUAD
7adf2470 2060#if !defined(PERL_CORE)
e25d460c
NC
2061/* We think that removing this decade-old undef this will cause too much
2062 breakage on CPAN for too little gain. (See RT #119753)
7adf2470 2063 However, we do need HAS_QUAD in the core for use by the drand48 code. */
cb4b14d5 2064# undef HAS_QUAD
e25d460c 2065#endif
cf2093f6 2066# endif
79072805 2067#endif
d7d93a81 2068
6313e544
JH
2069#define Size_t_MAX (~(Size_t)0)
2070#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 2071
cae7ae48 2072#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 2073#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 2074
28e5dec8 2075#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 2076#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
2077#endif
2078
d460ef45 2079/*
26bb67e2
JH
2080 * The macros INT2PTR and NUM2PTR are (despite their names)
2081 * bi-directional: they will convert int/float to or from pointers.
2082 * However the conversion to int/float are named explicitly:
2083 * PTR2IV, PTR2UV, PTR2NV.
2084 *
2085 * For int conversions we do not need two casts if pointers are
2086 * the same size as IV and UV. Otherwise we need an explicit
2087 * cast (PTRV) to avoid compiler warnings.
81065b6d
KW
2088 *
2089 * These are mentioned in perlguts
26bb67e2 2090 */
56431972
RB
2091#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
2092# define PTRV UV
2093# define INT2PTR(any,d) (any)(d)
da5fdda8
AC
2094#elif PTRSIZE == LONGSIZE
2095# define PTRV unsigned long
2096# define PTR2ul(p) (unsigned long)(p)
56431972 2097#else
da5fdda8 2098# define PTRV unsigned
e91e3b10
RB
2099#endif
2100
2101#ifndef INT2PTR
56431972 2102# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 2103#endif
e91e3b10
RB
2104
2105#ifndef PTR2ul
2106# define PTR2ul(p) INT2PTR(unsigned long,p)
2107#endif
2108
56431972
RB
2109#define NUM2PTR(any,d) (any)(PTRV)(d)
2110#define PTR2IV(p) INT2PTR(IV,p)
2111#define PTR2UV(p) INT2PTR(UV,p)
2112#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 2113#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 2114
8141890a
JH
2115/* According to strict ANSI C89 one cannot freely cast between
2116 * data pointers and function (code) pointers. There are at least
2117 * two ways around this. One (used below) is to do two casts,
2118 * first the other pointer to an (unsigned) integer, and then
2119 * the integer to the other pointer. The other way would be
2120 * to use unions to "overlay" the pointers. For an example of
2121 * the latter technique, see union dirpu in struct xpvio in sv.h.
2122 * The only feasible use is probably temporarily storing
2123 * function pointers in a data pointer (such as a void pointer). */
2124
e91e3b10
RB
2125#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
2126#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 2127
65202027 2128#ifdef USE_LONG_DOUBLE
f3654d06
JH
2129# if LONG_DOUBLESIZE == DOUBLESIZE
2130# define LONG_DOUBLE_EQUALS_DOUBLE
2131# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
2132# endif
2133#endif
2134
2d4389e4
JH
2135/* The following is all to get LDBL_DIG, in order to pick a nice
2136 default value for printing floating point numbers in Gconvert.
2137 (see config.h)
2138*/
63b481b9 2139#ifndef HAS_LDBL_DIG
68d4903c 2140# if LONG_DOUBLESIZE == 10
63b481b9
AC
2141# define LDBL_DIG 18 /* assume IEEE */
2142# elif LONG_DOUBLESIZE == 12
68d4903c 2143# define LDBL_DIG 18 /* gcc? */
63b481b9
AC
2144# elif LONG_DOUBLESIZE == 16
2145# define LDBL_DIG 33 /* assume IEEE */
2146# elif LONG_DOUBLESIZE == DOUBLESIZE
2147# define LDBL_DIG DBL_DIG /* bummer */
68d4903c 2148# endif
2d4389e4
JH
2149#endif
2150
a22e52b9 2151typedef NVTYPE NV;
8175356b 2152
792d8dab
JH
2153#ifdef I_IEEEFP
2154# include <ieeefp.h>
2155#endif
923fc586 2156
bcd8bfa9
JH
2157#if defined(__DECC) && defined(__osf__)
2158/* Also Tru64 cc has broken NaN comparisons. */
2159# define NAN_COMPARE_BROKEN
c32c3de1 2160#endif
6504068e
JH
2161#if defined(__sgi)
2162# define NAN_COMPARE_BROKEN
2163#endif
c32c3de1 2164
65202027 2165#ifdef USE_LONG_DOUBLE
923fc586
JH
2166# ifdef I_SUNMATH
2167# include <sunmath.h>
2168# endif
84e6cb05 2169# if defined(LDBL_DIG)
05b4a618
JH
2170# define NV_DIG LDBL_DIG
2171# ifdef LDBL_MANT_DIG
2172# define NV_MANT_DIG LDBL_MANT_DIG
2173# endif
2174# ifdef LDBL_MIN
2175# define NV_MIN LDBL_MIN
2176# endif
2177# ifdef LDBL_MAX
2178# define NV_MAX LDBL_MAX
2179# endif
2180# ifdef LDBL_MIN_EXP
2181# define NV_MIN_EXP LDBL_MIN_EXP
2182# endif
2183# ifdef LDBL_MAX_EXP
2184# define NV_MAX_EXP LDBL_MAX_EXP
2185# endif
2186# ifdef LDBL_MIN_10_EXP
2187# define NV_MIN_10_EXP LDBL_MIN_10_EXP
2188# endif
2189# ifdef LDBL_MAX_10_EXP
2190# define NV_MAX_10_EXP LDBL_MAX_10_EXP
2191# endif
2192# ifdef LDBL_EPSILON
2193# define NV_EPSILON LDBL_EPSILON
2194# endif
2195# ifdef LDBL_MAX
2196# define NV_MAX LDBL_MAX
20f6aaab 2197/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
da5fdda8
AC
2198# elif defined(HUGE_VALL)
2199# define NV_MAX HUGE_VALL
f4a14a62
JH
2200# endif
2201# endif
84e6cb05 2202# if defined(HAS_SQRTL)
8a00eddc
JH
2203# define Perl_acos acosl
2204# define Perl_asin asinl
2205# define Perl_atan atanl
940e3d56
JH
2206# define Perl_atan2 atan2l
2207# define Perl_ceil ceill
2208# define Perl_cos cosl
8a00eddc 2209# define Perl_cosh coshl
940e3d56 2210# define Perl_exp expl
55da5e5b 2211/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2212# define Perl_floor floorl
2213# define Perl_fmod fmodl
2214# define Perl_log logl
8a00eddc 2215# define Perl_log10 log10l
940e3d56
JH
2216# define Perl_pow powl
2217# define Perl_sin sinl
8a00eddc 2218# define Perl_sinh sinhl
940e3d56 2219# define Perl_sqrt sqrtl
8a00eddc
JH
2220# define Perl_tan tanl
2221# define Perl_tanh tanhl
68d4903c 2222# endif
a3540c92 2223/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
2224# ifndef Perl_modf
2225# ifdef HAS_MODFL
2226# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
2227/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
2228 prototype in <math.h> */
05b4a618 2229# ifndef HAS_MODFL_PROTO
a221a8a5 2230EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
2231# endif
2232# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 2233 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 2234# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 2235# endif
a3540c92 2236# endif
05b4a618
JH
2237# ifndef Perl_frexp
2238# ifdef HAS_FREXPL
2239# define Perl_frexp(x,y) frexpl(x,y)
da5fdda8 2240# elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
05b4a618 2241extern long double Perl_my_frexpl(long double x, int *e);
da5fdda8 2242# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
03476e8e 2243# endif
a3540c92 2244# endif
05b4a618
JH
2245# ifndef Perl_ldexp
2246# ifdef HAS_LDEXPL
2247# define Perl_ldexp(x, y) ldexpl(x,y)
da5fdda8
AC
2248# elif defined(HAS_SCALBNL) && FLT_RADIX == 2
2249# define Perl_ldexp(x,y) scalbnl(x,y)
98181445
JH
2250# endif
2251# endif
38dbb4c5 2252# ifndef Perl_isnan
e4c957f4 2253# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79 2254# define Perl_isnan(x) isnanl(x)
a1115378
JH
2255# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2256# define Perl_isnan(x) isnan(x)
758a5d79
JH
2257# endif
2258# endif
2259# ifndef Perl_isinf
e4c957f4 2260# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 2261# define Perl_isinf(x) isinfl(x)
a1115378
JH
2262# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
2263# define Perl_isinf(x) isinf(x)
bcd8bfa9 2264# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2265# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
2266# endif
2267# endif
e38461cc
JH
2268# ifndef Perl_isfinite
2269# define Perl_isfinite(x) Perl_isfinitel(x)
2270# endif
84e6cb05
JH
2271#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2272# include <quadmath.h>
2273# define NV_DIG FLT128_DIG
2274# define NV_MANT_DIG FLT128_MANT_DIG
2275# define NV_MIN FLT128_MIN
2276# define NV_MAX FLT128_MAX
2277# define NV_MIN_EXP FLT128_MIN_EXP
2278# define NV_MAX_EXP FLT128_MAX_EXP
2279# define NV_EPSILON FLT128_EPSILON
2280# define NV_MIN_10_EXP FLT128_MIN_10_EXP
2281# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH
2282# define Perl_acos acosq
2283# define Perl_asin asinq
2284# define Perl_atan atanq
2285# define Perl_atan2 atan2q
2286# define Perl_ceil ceilq
2287# define Perl_cos cosq
2288# define Perl_cosh coshq
2289# define Perl_exp expq
2290/* no Perl_fabs, but there's PERL_ABS */
2291# define Perl_floor floorq
2292# define Perl_fmod fmodq
2293# define Perl_log logq
2294# define Perl_log10 log10q
e6081c0e 2295# define Perl_signbit signbitq
84e6cb05
JH
2296# define Perl_pow powq
2297# define Perl_sin sinq
2298# define Perl_sinh sinhq
2299# define Perl_sqrt sqrtq
2300# define Perl_tan tanq
2301# define Perl_tanh tanhq
2302# define Perl_modf(x,y) modfq(x,y)
2303# define Perl_frexp(x,y) frexpq(x,y)
2304# define Perl_ldexp(x, y) ldexpq(x,y)
2305# define Perl_isinf(x) isinfq(x)
2306# define Perl_isnan(x) isnanq(x)
2307# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
b28053d1
JH
2308# define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2309# define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2310# define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2311# define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2312# define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2313# define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
65202027 2314#else
2d4389e4 2315# define NV_DIG DBL_DIG
63b481b9
AC
2316# define NV_MANT_DIG DBL_MANT_DIG
2317# define NV_MIN DBL_MIN
2318# define NV_MAX DBL_MAX
2319# define NV_MIN_EXP DBL_MIN_EXP
2320# define NV_MAX_EXP DBL_MAX_EXP
2321# define NV_MIN_10_EXP DBL_MIN_10_EXP
2322# define NV_MAX_10_EXP DBL_MAX_10_EXP
2323# define NV_EPSILON DBL_EPSILON
2324# define NV_MAX DBL_MAX
2325# define NV_MIN DBL_MIN
940e3d56 2326
55da5e5b 2327/* These math interfaces are C89. */
8a00eddc
JH
2328# define Perl_acos acos
2329# define Perl_asin asin
2330# define Perl_atan atan
940e3d56
JH
2331# define Perl_atan2 atan2
2332# define Perl_ceil ceil
2333# define Perl_cos cos
8a00eddc 2334# define Perl_cosh cosh
940e3d56 2335# define Perl_exp exp
55da5e5b 2336/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2337# define Perl_floor floor
2338# define Perl_fmod fmod
2339# define Perl_log log
8a00eddc 2340# define Perl_log10 log10
940e3d56
JH
2341# define Perl_pow pow
2342# define Perl_sin sin
8a00eddc 2343# define Perl_sinh sinh
940e3d56 2344# define Perl_sqrt sqrt
8a00eddc
JH
2345# define Perl_tan tan
2346# define Perl_tanh tanh
940e3d56
JH
2347
2348# define Perl_modf(x,y) modf(x,y)
2349# define Perl_frexp(x,y) frexp(x,y)
2350# define Perl_ldexp(x,y) ldexp(x,y)
2351
1a322af2
JH
2352# ifndef Perl_isnan
2353# ifdef HAS_ISNAN
2354# define Perl_isnan(x) isnan(x)
2355# endif
2356# endif
2357# ifndef Perl_isinf
2358# if defined(HAS_ISINF)
2359# define Perl_isinf(x) isinf(x)
bcd8bfa9 2360# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2361# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2362# endif
2363# endif
2364# ifndef Perl_isfinite
2365# ifdef HAS_ISFINITE
2366# define Perl_isfinite(x) isfinite(x)
2367# elif defined(HAS_FINITE)
2368# define Perl_isfinite(x) finite(x)
2369# endif
2370# endif
758a5d79
JH
2371#endif
2372
30404d48
JH
2373/* fpclassify(): C99. It is supposed to be a macro that switches on
2374* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2375#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2376# include <math.h>
25c46df8
JH
2377# if defined(FP_INFINITE) && defined(FP_NAN)
2378# define Perl_fp_class(x) fpclassify(x)
2379# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2380# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2381# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2382# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2383# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2384# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2385/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2386 * actually not the C99 fpclassify, with its own set of return defines. */
2387# define Perl_fp_class(x) fpclassify(x)
2388# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2389# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2390# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2391# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2392# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2393# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2394# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2395# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2396# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2397# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2398# else
2399# undef Perl_fp_class /* Unknown set of defines */
2400# endif
30404d48
JH
2401#endif
2402
25c46df8
JH
2403/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2404 * are identical to the C99 fpclassify(). */
2405#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2406# include <math.h>
558f3e66
CB
2407# ifdef __VMS
2408 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2409# include <fp.h>
56610b8f
CB
2410 /* oh, and the isnormal macro has a typo in it! */
2411# undef isnormal
2412# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2413# endif
25c46df8
JH
2414# if defined(FP_INFINITE) && defined(FP_NAN)
2415# define Perl_fp_class(x) fp_classify(x)
2416# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2417# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2418# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2419# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2420# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2421# else
2422# undef Perl_fp_class /* Unknown set of defines */
2423# endif
f279e099 2424#endif
205f51d8 2425
30404d48
JH
2426/* Feel free to check with me for the SGI manpages, SGI testing,
2427 * etcetera, if you want to try getting this to work with IRIX.
2428 *
2429 * - Allen <allens@cpan.org> */
2430
2431/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2432#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2433/* Solaris and IRIX have fpclass/fpclassl, but they are using
2434 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2435 * Define some symbols also as cpp symbols so we can detect them. */
033a6f7a 2436# if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
25c46df8
JH
2437# define FP_PINF FP_PINF
2438# define FP_QNAN FP_QNAN
2439# endif
f279e099 2440# include <math.h>
758a5d79
JH
2441# ifdef I_IEEFP
2442# include <ieeefp.h>
2443# endif
2444# ifdef I_FP
2445# include <fp.h>
2446# endif
2447# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2448# define Perl_fp_class(x) fpclassl(x)
758a5d79 2449# else
f279e099
JH
2450# define Perl_fp_class(x) fpclass(x)
2451# endif
25c46df8 2452# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2453# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2454# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2455# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2456# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2457# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2458# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2459# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2460# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2461# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2462# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2463# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2464# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2465# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2466# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2467# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2468# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2469# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2470# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2471# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2472# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2473# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2474# else
2475# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2476# endif
758a5d79
JH
2477#endif
2478
30404d48
JH
2479/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2480#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2481# include <math.h>
2482# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2483# include <fp_class.h>
2484# endif
25c46df8 2485# if defined(FP_POS_INF) && defined(FP_QNAN)
033a6f7a 2486# ifdef __sgi /* XXX Configure test instead */
25c46df8
JH
2487# ifdef USE_LONG_DOUBLE
2488# define Perl_fp_class(x) fp_class_l(x)
2489# else
2490# define Perl_fp_class(x) fp_class_d(x)
2491# endif
f279e099 2492# else
25c46df8
JH
2493# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2494# define Perl_fp_class(x) fp_classl(x)
2495# else
2496# define Perl_fp_class(x) fp_class(x)
2497# endif
f279e099 2498# endif
25c46df8
JH
2499# if defined(FP_POS_INF) && defined(FP_QNAN)
2500# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2501# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2502# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2503# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2504# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2505# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2506# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2507# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2508# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2509# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2510# else
25c46df8 2511# undef Perl_fp_class /* Unknown set of defines */
30404d48 2512# endif
f279e099 2513# endif
30404d48
JH
2514#endif
2515
052758ae 2516/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2517#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2518# include <math.h>
25c46df8
JH
2519# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2520# ifndef _cplusplus
2521# define Perl_fp_class(x) class(x)
2522# else
2523# define Perl_fp_class(x) _class(x)
2524# endif
2525# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2526# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2527# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2528# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2529# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2530# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2531# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2532# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2533# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2534# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2535# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2536# else
2537# undef Perl_fp_class /* Unknown set of defines */
2538# endif
758a5d79 2539# endif
30404d48
JH
2540#endif
2541
2542/* Win32: _fpclass(), _isnan(), _finite(). */
90f54b14 2543#ifdef _MSC_VER
796ea9ea
JH
2544# ifndef Perl_isnan
2545# define Perl_isnan(x) _isnan(x)
2546# endif
2547# ifndef Perl_isfinite
2548# define Perl_isfinite(x) _finite(x)
2549# endif
2550# ifndef Perl_fp_class_snan
25c46df8
JH
2551/* No simple way to #define Perl_fp_class because _fpclass()
2552 * returns a set of bits. */
796ea9ea
JH
2553# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2554# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2555# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
d74c13c0
KW
2556# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)
2557# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)
796ea9ea
JH
2558# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2559# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2560# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2561# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2562# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2563# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2564# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2565# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2566# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2567# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2568# endif
f279e099
JH
2569#endif
2570
2571#if !defined(Perl_fp_class_inf) && \
2572 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2573# define Perl_fp_class_inf(x) \
2574 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2575#endif
2576
2577#if !defined(Perl_fp_class_nan) && \
2578 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2579# define Perl_fp_class_nan(x) \
2580 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2581#endif
2582
2583#if !defined(Perl_fp_class_zero) && \
2584 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2585# define Perl_fp_class_zero(x) \
2586 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2587#endif
2588
2589#if !defined(Perl_fp_class_norm) && \
2590 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2591# define Perl_fp_class_norm(x) \
2592 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2593#endif
2594
2595#if !defined(Perl_fp_class_denorm) && \
2596 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2597# define Perl_fp_class_denorm(x) \
2598 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2599#endif
758a5d79
JH
2600
2601#ifndef Perl_isnan
1a322af2
JH
2602# ifdef Perl_fp_class_nan
2603# define Perl_isnan(x) Perl_fp_class_nan(x)
da5fdda8
AC
2604# elif defined(HAS_UNORDERED)
2605# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2606# else
da5fdda8 2607# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2608# endif
2609#endif
2610
1a322af2
JH
2611#ifndef Perl_isinf
2612# ifdef Perl_fp_class_inf
2613# define Perl_isinf(x) Perl_fp_class_inf(x)
2614# endif
ca6c63e1
JH
2615#endif
2616
758a5d79 2617#ifndef Perl_isfinite
25c46df8 2618# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2619# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2620# elif defined(HAS_FINITE)
c496ca58 2621# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2622# elif defined(Perl_fp_class_finite)
2623# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2624# else
c496ca58
JH
2625/* For the infinities the multiplication returns nan,
2626 * for the nan the multiplication also returns nan,
2627 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2628# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2629# endif
65202027
DS
2630#endif
2631
25c46df8
JH
2632#ifndef Perl_isinf
2633# if defined(Perl_isfinite) && defined(Perl_isnan)
2634# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2635# endif
2636#endif
2637
d3685250
JH
2638/* We need Perl_isfinitel (ends with ell) (if available) even when
2639 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2640 * needs that. */
2641#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2642/* If isfinite() is a macro and looks like we have C99,
2643 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2644# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2645# define Perl_isfinitel(x) isfinite(x)
2646# elif defined(HAS_ISFINITEL)
2647# define Perl_isfinitel(x) isfinitel(x)
2648# elif defined(HAS_FINITEL)
2649# define Perl_isfinitel(x) finitel(x)
2650# elif defined(HAS_INFL) && defined(HAS_NANL)
2651# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2652# else
99bf9e32 2653# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2654# endif
2655#endif
2656
a36244b7
JH
2657/* The default is to use Perl's own atof() implementation (in numeric.c).
2658 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2659 * it is however best to use the native implementation of atof.
2660 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2661 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2662 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2663 * you may need to be using a different function than atof! */
a36244b7
JH
2664
2665#ifndef USE_PERL_ATOF
2666# ifndef _UNICOS
2667# define USE_PERL_ATOF
2668# endif
2669#else
2670# if USE_PERL_ATOF == 0
2671# undef USE_PERL_ATOF
2672# endif
2673#endif
2674
2675#ifdef USE_PERL_ATOF
2676# define Perl_atof(s) Perl_my_atof(s)
6928bedc 2677# define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
a36244b7
JH
2678#else
2679# define Perl_atof(s) (NV)atof(s)
2680# define Perl_atof2(s, n) ((n) = atof(s))
2681#endif
6928bedc 2682#define my_atof2(a,b) my_atof3(a,b,0)
cf2093f6 2683
99abf803 2684/*
37dee3fa
KW
2685=for apidoc_section $numeric
2686=for apidoc AmT|NV|Perl_acos|NV x
2687=for apidoc_item |NV|Perl_asin|NV x
2688=for apidoc_item |NV|Perl_atan|NV x
2689=for apidoc_item |NV|Perl_atan2|NV x|NV y
2690=for apidoc_item |NV|Perl_ceil|NV x
2691=for apidoc_item |NV|Perl_cos|NV x
2692=for apidoc_item |NV|Perl_cosh|NV x
2693=for apidoc_item |NV|Perl_exp|NV x
2694=for apidoc_item |NV|Perl_floor|NV x
2695=for apidoc_item |NV|Perl_fmod|NV x|NV y
2696=for apidoc_item |NV|Perl_frexp|NV x|int *exp
2697=for apidoc_item |IV|Perl_isfinite|NV x
2698=for apidoc_item |IV|Perl_isinf|NV x
2699=for apidoc_item |IV|Perl_isnan|NV x
2700=for apidoc_item |NV|Perl_ldexp|NV x|int exp
2701=for apidoc_item |NV|Perl_log|NV x
2702=for apidoc_item |NV|Perl_log10|NV x
2703=for apidoc_item |NV|Perl_modf|NV x|NV *iptr
2704=for apidoc_item |NV|Perl_pow|NV x|NV y
2705=for apidoc_item |NV|Perl_sin|NV x
2706=for apidoc_item |NV|Perl_sinh|NV x
2707=for apidoc_item |NV|Perl_sqrt|NV x
2708=for apidoc_item |NV|Perl_tan|NV x
2709=for apidoc_item |NV|Perl_tanh|NV x
2710
2711These perform the corresponding mathematical operation on the operand(s), using
2712the libc function designed for the task that has just enough precision for an
2713NV on this platform. If no such function with sufficient precision exists,
2714the highest precision one available is used.
2715
2716=cut
2717*/
2718
2719/*
99abf803
PP
2720 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2721 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2722 * depending on local options. Until Configure detects this (or at least
2723 * detects whether the "signed" keyword is available) the CHAR ranges
2724 * will not be included. UCHAR functions normally.
2725 * - kja
2726 */
27d4fb96 2727
6ec488b3
AC
2728#define PERL_UCHAR_MIN ((unsigned char)0)
2729#define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2730
6ec488b3
AC
2731#define PERL_USHORT_MIN ((unsigned short)0)
2732#define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
27d4fb96 2733
6ec488b3
AC
2734#define PERL_SHORT_MAX ((short)SHRT_MAX)
2735#define PERL_SHORT_MIN ((short)SHRT_MIN)
27d4fb96 2736
6ec488b3 2737#define PERL_UINT_MAX ((unsigned int)UINT_MAX)
99abf803 2738#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2739
6ec488b3
AC
2740#define PERL_INT_MAX ((int)INT_MAX)
2741#define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2742
6ec488b3 2743#define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
99abf803 2744#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2745
6ec488b3
AC
2746#define PERL_LONG_MAX ((long)LONG_MAX)
2747#define PERL_LONG_MIN ((long)LONG_MIN)
760ac839 2748
d7d93a81 2749#ifdef UV_IS_QUAD
99abf803 2750# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2751# define PERL_UQUAD_MIN ((UV)0)
99abf803 2752# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2753# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
79072805
LW
2754#endif
2755
d78a5caa 2756/*
3f620621 2757=for apidoc_section $integer
d78a5caa 2758
d78a5caa 2759=for apidoc AmnU||PERL_INT_MAX
3145e814
KW
2760=for apidoc_item ||PERL_INT_MIN
2761=for apidoc_item ||PERL_LONG_MAX
2762=for apidoc_item ||PERL_LONG_MIN
2763=for apidoc_item ||PERL_SHORT_MAX
2764=for apidoc_item ||PERL_SHORT_MIN
2765=for apidoc_item ||PERL_UCHAR_MAX
2766=for apidoc_item ||PERL_UCHAR_MIN
2767=for apidoc_item ||PERL_UINT_MAX
2768=for apidoc_item ||PERL_UINT_MIN
2769=for apidoc_item ||PERL_ULONG_MAX
2770=for apidoc_item ||PERL_ULONG_MIN
2771=for apidoc_item ||PERL_USHORT_MAX
2772=for apidoc_item ||PERL_USHORT_MIN
2773=for apidoc_item ||PERL_QUAD_MAX
2774=for apidoc_item ||PERL_QUAD_MIN
2775=for apidoc_item ||PERL_UQUAD_MAX
2776=for apidoc_item ||PERL_UQUAD_MIN
2777
2778These give the largest and smallest number representable in the current
d78a5caa
KW
2779platform in variables of the corresponding types.
2780
2781For signed types, the smallest representable number is the most negative
2782number, the one furthest away from zero.
2783
2784For C99 and later compilers, these correspond to things like C<INT_MAX>, which
2785are available to the C code. But these constants, furnished by Perl,
2786allow code compiled on earlier compilers to portably have access to the same
2787constants.
2788
2789=cut
2790
2791*/
2792
ee0007ab 2793typedef MEM_SIZE STRLEN;
450a55e4 2794
79072805
LW
2795typedef struct op OP;
2796typedef struct cop COP;
2797typedef struct unop UNOP;
2f7c6295 2798typedef struct unop_aux UNOP_AUX;
79072805
LW
2799typedef struct binop BINOP;
2800typedef struct listop LISTOP;
2801typedef struct logop LOGOP;
79072805
LW
2802typedef struct pmop PMOP;
2803typedef struct svop SVOP;
7934575e 2804typedef struct padop PADOP;
79072805 2805typedef struct pvop PVOP;
79072805 2806typedef struct loop LOOP;
b46e009d 2807typedef struct methop METHOP;
79072805 2808
7aef8e5b 2809#ifdef PERL_CORE
8be227ab
FC
2810typedef struct opslab OPSLAB;
2811typedef struct opslot OPSLOT;
2812#endif
2813
52db365a 2814typedef struct block_hooks BHK;
1830b3d9 2815typedef struct custom_op XOP;
52db365a 2816
cd1541b2
NC
2817typedef struct interpreter PerlInterpreter;
2818
d2b3f365 2819/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2820#if defined(__sgi)
d2b3f365 2821# define STRUCT_SV perl_sv
b8d3c5db
JH
2822#else
2823# define STRUCT_SV sv
2824#endif
2825typedef struct STRUCT_SV SV;
79072805
LW
2826typedef struct av AV;
2827typedef struct hv HV;
2828typedef struct cv CV;
d2f13c59 2829typedef struct p5rx REGEXP;
79072805 2830typedef struct gp GP;
0c30d9ec 2831typedef struct gv GV;
8990e307 2832typedef struct io IO;
c09156bb 2833typedef struct context PERL_CONTEXT;
79072805 2834typedef struct block BLOCK;
47e6c6d9 2835typedef struct invlist INVLIST;
79072805
LW
2836
2837typedef struct magic MAGIC;
2838typedef struct xpv XPV;
2839typedef struct xpviv XPVIV;
ff68c719 2840typedef struct xpvuv XPVUV;
79072805
LW
2841typedef struct xpvnv XPVNV;
2842typedef struct xpvmg XPVMG;
2843typedef struct xpvlv XPVLV;
d361b004 2844typedef struct xpvinvlist XINVLIST;
79072805
LW
2845typedef struct xpvav XPVAV;
2846typedef struct xpvhv XPVHV;
2847typedef struct xpvgv XPVGV;
2848typedef struct xpvcv XPVCV;
2849typedef struct xpvbm XPVBM;
2850typedef struct xpvfm XPVFM;
8990e307 2851typedef struct xpvio XPVIO;
79072805
LW
2852typedef struct mgvtbl MGVTBL;
2853typedef union any ANY;
5f7fde29
GS
2854typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2855typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2856typedef struct clone_params CLONE_PARAMS;
2857
0f94cb1f 2858/* a pad is currently just an AV; but that might change,
7261499d
FC
2859 * so hide the type. */
2860typedef struct padlist PADLIST;
67634234 2861typedef AV PAD;
9b7476d7 2862typedef struct padnamelist PADNAMELIST;
0f94cb1f 2863typedef struct padname PADNAME;
67634234 2864
5a736967
DM
2865/* always enable PERL_OP_PARENT */
2866#if !defined(PERL_OP_PARENT)
5d32d268
DM
2867# define PERL_OP_PARENT
2868#endif
2869
93c10d60
FC
2870/* enable PERL_COPY_ON_WRITE by default */
2871#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2872# define PERL_COPY_ON_WRITE
13b0f67d 2873#endif
07d01d6e 2874
93c10d60 2875#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2876# define PERL_ANY_COW
9f351b45
DM
2877#else
2878# define PERL_SAWAMPERSAND
db2c6cb3
FC
2879#endif
2880
40653c20
FC
2881#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2882# error PERL_DEBUG_READONLY_OPS only works with ithreads
2883#endif
2884
378cc40b 2885#include "handy.h"
64935bc6 2886#include "charclass_invlists.h"
a0d0e21e 2887
6b8eaf93 2888#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2889# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2890# define USE_64_BIT_RAWIO /* implicit */
2891# endif
4564133c
JH
2892#endif
2893
6b8eaf93
JH
2894/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2895 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2896 * however, because operating systems like to do that themself. */
2897#ifndef FSEEKSIZE
2898# ifdef HAS_FSEEKO
2899# define FSEEKSIZE LSEEKSIZE
2900# else
2901# define FSEEKSIZE LONGSIZE
d460ef45 2902# endif
6b8eaf93
JH
2903#endif
2904
2905#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2906# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2907# define USE_64_BIT_STDIO /* implicit */
2908# endif
2909#endif
4564133c 2910
09458382 2911#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2912# ifdef HAS_OFF64_T
2913# undef Off_t
2914# define Off_t off64_t
2915# undef LSEEKSIZE
2916# define LSEEKSIZE 8
5ff3f7a4 2917# endif
d9b3e12d
JH
2918/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2919 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2920 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2921# if defined(USE_OPEN64)
2922# define open open64
5ff3f7a4 2923# endif
d9b3e12d
JH
2924# if defined(USE_LSEEK64)
2925# define lseek lseek64
6b8eaf93
JH
2926# else
2927# if defined(USE_LLSEEK)
2928# define lseek llseek
2929# endif
d9b3e12d
JH
2930# endif
2931# if defined(USE_STAT64)
2932# define stat stat64
2933# endif
2934# if defined(USE_FSTAT64)
2935# define fstat fstat64
2936# endif
2937# if defined(USE_LSTAT64)
2938# define lstat lstat64
2939# endif
2940# if defined(USE_FLOCK64)
2941# define flock flock64
2942# endif
2943# if defined(USE_LOCKF64)
2944# define lockf lockf64
2945# endif
2946# if defined(USE_FCNTL64)
2947# define fcntl fcntl64
2948# endif
2949# if defined(USE_TRUNCATE64)
2950# define truncate truncate64
2951# endif
2952# if defined(USE_FTRUNCATE64)
2953# define ftruncate ftruncate64
2954# endif
2955#endif
2956
2957#ifdef USE_64_BIT_STDIO
2958# ifdef HAS_FPOS64_T
2959# undef Fpos_t
2960# define Fpos_t fpos64_t
2961# endif
2962/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2963 * will trigger defines like the ones below. Some 64-bit environments,
2964 * however, do not. */
2965# if defined(USE_FOPEN64)
2966# define fopen fopen64
2967# endif
2968# if defined(USE_FSEEK64)
6b8eaf93 2969# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2970# endif
2971# if defined(USE_FTELL64)
6b8eaf93 2972# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2973# endif
2974# if defined(USE_FSETPOS64)
2975# define fsetpos fsetpos64
2976# endif
2977# if defined(USE_FGETPOS64)
2978# define fgetpos fgetpos64
2979# endif
2980# if defined(USE_TMPFILE64)
2981# define tmpfile tmpfile64
2982# endif
2983# if defined(USE_FREOPEN64)
2984# define freopen freopen64
5ff3f7a4
GS
2985# endif
2986#endif
2987
e37778c2 2988#if defined(OS2)
2c2d71f5
JH
2989# include "iperlsys.h"
2990#endif
2991
748a9306 2992#ifdef DOSISH
19848b3f
JH
2993# if defined(OS2)
2994# include "os2ish.h"
2995# else
2996# include "dosish.h"
2997# endif
009819bb 2998#elif defined(VMS)
748a9306 2999# include "vmsish.h"
009819bb 3000#elif defined(PLAN9)
19848b3f 3001# include "./plan9/plan9ish.h"
009819bb 3002#elif defined(__VOS__)
196918b0
PG
3003# ifdef __GNUC__
3004# include "./vos/vosish.h"
3005# else
3006# include "vos/vosish.h"
3007# endif
009819bb 3008#elif defined(__HAIKU__)
df00ff3b 3009# include "haiku/haikuish.h"
009819bb 3010#else
19848b3f 3011# include "unixish.h"
13b6e58c
JH
3012#endif
3013
ea34f6bd 3014#ifdef __amigaos4__
3c0208ad
AB
3015# include "amigaos.h"
3016# undef FD_CLOEXEC /* a lie in AmigaOS */
3017#endif
3018
2946a158 3019/* NSIG logic from Configure --> */
2946a158
JH
3020#ifndef NSIG
3021# ifdef _NSIG
3022# define NSIG (_NSIG)
da5fdda8 3023# elif defined(SIGMAX)
2946a158 3024# define NSIG (SIGMAX+1)
da5fdda8 3025# elif defined(SIG_MAX)
2946a158 3026# define NSIG (SIG_MAX+1)
da5fdda8 3027# elif defined(_SIG_MAX)
2946a158 3028# define NSIG (_SIG_MAX+1)
da5fdda8 3029# elif defined(MAXSIG)
2946a158 3030# define NSIG (MAXSIG+1)
da5fdda8 3031# elif defined(MAX_SIG)
2946a158 3032# define NSIG (MAX_SIG+1)
da5fdda8 3033# elif defined(SIGARRAYSIZE)
2946a158 3034# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
da5fdda8 3035# elif defined(_sys_nsig)
2946a158 3036# define NSIG (_sys_nsig) /* Solaris 2.5 */
da5fdda8
AC
3037# else
3038 /* Default to some arbitrary number that's big enough to get most
3039 * of the common signals. */
2946a158 3040# define NSIG 50
da5fdda8 3041# endif
2946a158
JH
3042#endif
3043/* <-- NSIG logic from Configure */
3044
13b6e58c
JH
3045#ifndef NO_ENVIRON_ARRAY
3046# define USE_ENVIRON_ARRAY
3047#endif
32f822de 3048
2bc5f86a
KW
3049#ifdef USE_ITHREADS
3050 /* On some platforms it would be safe to use a read/write mutex with many
3051 * readers possible at the same time. On other platforms, notably IBM ones,
3052 * subsequent getenv calls destroy earlier ones. Those platforms would not
3053 * be able to handle simultaneous getenv calls */
3054# define ENV_LOCK MUTEX_LOCK(&PL_env_mutex)
3055# define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex)
3056# define ENV_INIT MUTEX_INIT(&PL_env_mutex);
3057# define ENV_TERM MUTEX_DESTROY(&PL_env_mutex);
3058#else
3059# define ENV_LOCK NOOP;
3060# define ENV_UNLOCK NOOP;
3061# define ENV_INIT NOOP;
3062# define ENV_TERM NOOP;
3063#endif
e7124897 3064
80c27f77
KW
3065/* Some critical sections need to lock both the locale and the environment.
3066 * XXX khw intends to change this to lock both mutexes, but that brings up
3067 * issues of potential deadlock, so should be done at the beginning of a
3068 * development cycle. So for now, it just locks the environment. Note that
3069 * many modern platforms are locale-thread-safe anyway, so locking the locale
3070 * mutex is a no-op anyway */
3071#define ENV_LOCALE_LOCK ENV_LOCK
3072#define ENV_LOCALE_UNLOCK ENV_UNLOCK
3073
3074/* And some critical sections care only that no one else is writing either the
3075 * locale nor the environment. XXX Again this is for the future. This can be
3076 * simulated with using COND_WAIT in thread.h */
3077#define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK
3078#define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK
3079
5e7940ce 3080#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
c99d8cd6
DM
3081 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg
3082 * signal handlers. But the perl core itself only fully supports 1-arg
3083 * handlers, so don't enable for now.
3084 * NB: POSIX::sigaction() supports both.
3085 *
3086 * # define PERL_USE_3ARG_SIGHANDLER
3087 */
5e7940ce
DM
3088#endif
3089
e7124897
DM
3090/* Siginfo_t:
3091 * This is an alias for the OS's siginfo_t, except that where the OS
3092 * doesn't support it, declare a dummy version instead. This allows us to
3093 * have signal handler functions which always have a Siginfo_t parameter
3094 * regardless of platform, (and which will just be passed a NULL value
3095 * where the OS doesn't support HAS_SIGACTION).
3096 */
3097
3098#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
3099 typedef siginfo_t Siginfo_t;
3100#else
3555a05c
LT
3101#ifdef si_signo /* minix */
3102#undef si_signo
3103#endif
e7124897
DM
3104 typedef struct {
3105 int si_signo;
3106 } Siginfo_t;
3107#endif
3108
3109
c77b533b
JH
3110/*
3111 * initialise to avoid floating-point exceptions from overflow, etc
3112 */
3113#ifndef PERL_FPU_INIT
3114# ifdef HAS_FPSETMASK
3115# if HAS_FLOATINGPOINT_H
3116# include <floatingpoint.h>
3117# endif
ad3a8c67
NC
3118/* Some operating systems have this as a macro, which in turn expands to a comma
3119 expression, and the last sub-expression is something that gets calculated,
3120 and then they have the gall to warn that a value computed is not used. Hence
3121 cast to void. */
3122# define PERL_FPU_INIT (void)fpsetmask(0)
da5fdda8
AC
3123# elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
3124# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
3125# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
3126# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
c77b533b 3127# else
da5fdda8 3128# define PERL_FPU_INIT
c77b533b
JH
3129# endif
3130#endif
b35112e7
CS
3131#ifndef PERL_FPU_PRE_EXEC
3132# define PERL_FPU_PRE_EXEC {
3133# define PERL_FPU_POST_EXEC }
3134#endif
c77b533b 3135
a308b05a
JH
3136/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
3137 * We need to reenable the "invalid" trap because otherwise generation
3138 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
3139 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
3140#ifdef __osf__
3141# include <machine/fpu.h>
3142# define PERL_SYS_FPU_INIT \
3143 STMT_START { \
3144 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
3145 signal(SIGFPE, SIG_IGN); \
3146 } STMT_END
3147#endif
94a08944
JH
3148/* In IRIX the default for Flush to Zero bit is true,
3149 * which means that results going below the minimum of normal
3150 * floating points go to zero, instead of going denormal/subnormal.
3151 * This is unlike almost any other system running Perl, so let's clear it.
3152 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
3153 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
3154 *
3155 * XXX The flush-to-zero behaviour should be a Configure scan.
3156 * To change the behaviour usually requires some system-specific
3157 * incantation, though, like the below. */
3158#ifdef __sgi
3159# include <sys/fpu.h>
3160# define PERL_SYS_FPU_INIT \
3161 STMT_START { \
3162 union fpc_csr csr; \
3163 csr.fc_word = get_fpc_csr(); \
3164 csr.fc_struct.flush = 0; \
3165 set_fpc_csr(csr.fc_word); \
3166 } STMT_END
3167#endif
a308b05a
JH
3168
3169#ifndef PERL_SYS_FPU_INIT
3170# define PERL_SYS_FPU_INIT NOOP
3171#endif
3172
cbec8ebe
DM
3173#ifndef PERL_SYS_INIT3_BODY
3174# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
3175#endif
3176
eb533572 3177/*
3f620621 3178=for apidoc_section $embedding
dcccc8ff 3179
4ad9e498 3180=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 3181Provides system-specific tune up of the C runtime environment necessary to
72d33970 3182run Perl interpreters. This should be called only once, before creating
eb533572
DM
3183any Perl interpreters.
3184
4ad9e498 3185=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 3186Provides system-specific tune up of the C runtime environment necessary to
72d33970 3187run Perl interpreters. This should be called only once, before creating
eb533572
DM
3188any Perl interpreters.
3189
3190=for apidoc Am|void|PERL_SYS_TERM|
3191Provides system-specific clean up of the C runtime environment after
72d33970 3192running Perl interpreters. This should be called only once, after
eb533572
DM
3193freeing any remaining Perl interpreters.
3194
3195=cut
3196 */
3197
cbec8ebe
DM
3198#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
3199#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 3200#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 3201
be708cc0
JH
3202#ifndef PERL_WRITE_MSG_TO_CONSOLE
3203# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
3204#endif
3205
0f31cffe
GS
3206#ifndef MAXPATHLEN
3207# ifdef PATH_MAX
b990c8b2
JH
3208# ifdef _POSIX_PATH_MAX
3209# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
3210/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
3211 * included the null byte or not. Later amendments of POSIX,
3212 * XPG4, the Austin Group, and the Single UNIX Specification
3213 * all explicitly include the null byte in the PATH_MAX.
3214 * Ditto for _POSIX_PATH_MAX. */
3215# define MAXPATHLEN PATH_MAX
b990c8b2 3216# else
09448d78 3217# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
3218# endif
3219# else
3220# define MAXPATHLEN (PATH_MAX+1)
3221# endif
0f31cffe 3222# else
d552bce8 3223# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
3224# endif
3225#endif
3226
3baee7cc
JH
3227/* clang Thread Safety Analysis/Annotations/Attributes
3228 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
3229 *
bdc795f4 3230 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3baee7cc 3231 * Apple XCode hijacks __clang_major__ and __clang_minor__
bdc795f4
JH
3232 * (6.1 means really clang 3.6), so needs extra hijinks
3233 * (could probably also test the contents of __apple_build_version__).
3baee7cc
JH
3234 */
3235#if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
3236 defined(__clang__) && \
3237 !defined(SWIG) && \
3238 ((!defined(__apple_build_version__) && \
bdc795f4 3239 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
8412ccf9 3240 (__clang_major__ >= 4))) || \
3baee7cc 3241 (defined(__apple_build_version__) && \
bdc795f4
JH
3242 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
3243 (__clang_major__ >= 7))))
3baee7cc
JH
3244# define PERL_TSA__(x) __attribute__((x))
3245# define PERL_TSA_ACTIVE
3246#else
3247# define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
3248# undef PERL_TSA_ACTIVE
3249#endif
3250
3251/* PERL_TSA_CAPABILITY() is used to annotate typedefs.
3252 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
3253 */
3254#define PERL_TSA_CAPABILITY(x) \
3255 PERL_TSA__(capability(x))
3256
3257/* In the below examples the mutex must be lexically visible, usually
3258 * either as global variables, or as function arguments. */
3259
3260/* PERL_TSA_GUARDED_BY() is used to annotate global variables.
3261 *
3262 * Foo foo PERL_TSA_GUARDED_BY(mutex);
3263 */
3264#define PERL_TSA_GUARDED_BY(x) \
3265 PERL_TSA__(guarded_by(x))
3266
3267/* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
3268 * The data _behind_ the pointer is guarded.
3269 *
3270 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
3271 */
3272#define PERL_TSA_PT_GUARDED_BY(x) \
3273 PERL_TSA__(pt_guarded_by(x))
3274
3275/* PERL_TSA_REQUIRES() is used to annotate functions.
3276 * The caller MUST hold the resource when calling the function.
3277 *
3278 * void Foo() PERL_TSA_REQUIRES(mutex);
3279 */
3280#define PERL_TSA_REQUIRES(x) \
3281 PERL_TSA__(requires_capability(x))
3282
3283/* PERL_TSA_EXCLUDES() is used to annotate functions.
3284 * The caller MUST NOT hold resource when calling the function.
3285 *
3286 * EXCLUDES should be used when the function first acquires
3287 * the resource and then releases it. Use to avoid deadlock.
3288 *
3289 * void Foo() PERL_TSA_EXCLUDES(mutex);
3290 */
3291#define PERL_TSA_EXCLUDES(x) \
3292 PERL_TSA__(locks_excluded(x))
3293
3294/* PERL_TSA_ACQUIRE() is used to annotate functions.
3295 * The caller MUST NOT hold the resource when calling the function,
3296 * and the function will acquire the resource.
3297 *
3298 * void Foo() PERL_TSA_ACQUIRE(mutex);
3299 */
3300#define PERL_TSA_ACQUIRE(x) \
3301 PERL_TSA__(acquire_capability(x))
3302
3303/* PERL_TSA_RELEASE() is used to annotate functions.
3304 * The caller MUST hold the resource when calling the function,
3305 * and the function will release the resource.
3306 *
3307 * void Foo() PERL_TSA_RELEASE(mutex);
3308 */
3309#define PERL_TSA_RELEASE(x) \
3310 PERL_TSA__(release_capability(x))
3311
3312/* PERL_TSA_NO_TSA is used to annotate functions.
3313 * Used when being intentionally unsafe, or when the code is too
3314 * complicated for the analysis. Use sparingly.
3315 *
3316 * void Foo() PERL_TSA_NO_TSA;
3317 */
3318#define PERL_TSA_NO_TSA \
3319 PERL_TSA__(no_thread_safety_analysis)
3320
3321/* There are more annotations/attributes available, see the clang
3322 * documentation for details. */
3323
3db8f154 3324#if defined(USE_ITHREADS)
2986a63f 3325# ifdef NETWARE
da5fdda8
AC
3326# include <nw5thread.h>
3327# elif defined(WIN32)
3328# include <win32thread.h>
3329# elif defined(OS2)
3330# include "os2thread.h"
3331# elif defined(I_MACH_CTHREADS)
3332# include <mach/cthreads.h>
7f3d1cf1
BH
3333typedef cthread_t perl_os_thread;
3334typedef mutex_t perl_mutex;
3335typedef condition_t perl_cond;
3336typedef void * perl_key;
da5fdda8
AC
3337# elif defined(I_PTHREAD) /* Posix threads */
3338# include <pthread.h>
7f3d1cf1 3339typedef pthread_t perl_os_thread;
3baee7cc 3340typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
7f3d1cf1
BH
3341typedef pthread_cond_t perl_cond;
3342typedef pthread_key_t perl_key;
da5fdda8 3343# endif
3db8f154 3344#endif /* USE_ITHREADS */
c5be433b 3345
3baee7cc
JH
3346#ifdef PERL_TSA_ACTIVE
3347/* Since most pthread mutex interfaces have not been annotated, we
3348 * need to have these wrappers. The NO_TSA annotation is quite ugly
3349 * but it cannot be avoided in plain C, unlike in C++, where one could
3350 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3351 *
3352 * The bodies of these wrappers are in util.c
3353 *
3354 * TODO: however, some platforms are starting to get these clang
3355 * thread safety annotations for pthreads, for example FreeBSD.
3356 * Do we need a way to a bypass these wrappers? */
67083b7b 3357EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3baee7cc
JH
3358 PERL_TSA_ACQUIRE(*mutex)
3359 PERL_TSA_NO_TSA;
67083b7b 3360EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3baee7cc
JH
3361 PERL_TSA_RELEASE(*mutex)
3362 PERL_TSA_NO_TSA;
3363#endif
3364
66a93824 3365#if defined(WIN32)
1feb2720 3366# include "win32.h"
c5be433b
GS
3367#endif
3368
2986a63f
JH
3369#ifdef NETWARE
3370# include "netware.h"
3371#endif
3372
e5218da5 3373#define STATUS_UNIX PL_statusvalue
68dc0745 3374#ifdef VMS
6b88bc9c 3375# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3376/*
3377 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3378 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3379 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3380 * be updated also.
3381 */
3382# include <stsdef.h>
3383# include <ssdef.h>
3384/* Presume this because if VMS changes it, it will require a new
3385 * set of APIs for waiting on children for binary compatibility.
3386 */
3387# define child_offset_bits (8)
3388# ifndef C_FAC_POSIX
3389# define C_FAC_POSIX 0x35A000
3390# endif
3391
3392/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3393 * platform from the existing UNIX or Native status values.
3394 */
3395
37038d91 3396# define STATUS_EXIT \
7a7fd8e0
JM
3397 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3398 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3399
7a7fd8e0 3400
fb38d079
JM
3401/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3402 * exit code and shifts the UNIX value over the correct number of bits to
3403 * be a child status. Usually the number of bits is 8, but that could be
3404 * platform dependent. The NATIVE status code is presumed to have either
3405 * from a child process.
7a7fd8e0
JM
3406 */
3407
fb38d079
JM
3408/* This is complicated. The child processes return a true native VMS
3409 status which must be saved. But there is an assumption in Perl that
3410 the UNIX child status has some relationship to errno values, so
00f254e2 3411 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3412 In order to get the string translation correct, for the error, errno
3413 must be EVMSERR, but that generates a different text message
3414 than what the test programs are expecting. So an errno value must
3415 be derived from the native status value when an error occurs.
3416 That will hide the true native status message. With this version of
3417 perl, the true native child status can always be retrieved so that
3418 is not a problem. But in this case, Pl_statusvalue and errno may
3419 have different values in them.
3420 */
7a7fd8e0 3421
fb38d079 3422# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3423 STMT_START { \
2fbb330f
JM
3424 I32 evalue = (I32)n; \
3425 if (evalue == EVMSERR) { \
3426 PL_statusvalue_vms = vaxc$errno; \
3427 PL_statusvalue = evalue; \
7a7fd8e0 3428 } else { \
2fbb330f 3429 PL_statusvalue_vms = evalue; \
fb38d079 3430 if (evalue == -1) { \
3280af22 3431 PL_statusvalue = -1; \
7a7fd8e0
JM
3432 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3433 } else \
fb38d079 3434 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3435 set_vaxc_errno(evalue); \
fb38d079
JM
3436 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3437 set_errno(EVMSERR); \
3438 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3439 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3440 } \
68dc0745 3441 } STMT_END
7a7fd8e0 3442
68dc0745 3443# ifdef VMSISH_STATUS
e5218da5 3444# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3445# else
e5218da5 3446# define STATUS_CURRENT STATUS_UNIX
68dc0745 3447# endif
7a7fd8e0
JM
3448
3449 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3450 * the NATIVE status to an equivalent value. Can not be used to translate
3451 * exit code values as exit code values are not guaranteed to have any
3452 * relationship at all to errno values.
3453 * This is used when Perl is forcing errno to have a specific value.
3454 */
e5218da5 3455# define STATUS_UNIX_SET(n) \
68dc0745 3456 STMT_START { \
7a7fd8e0 3457 I32 evalue = (I32)n; \
0968cdad 3458 PL_statusvalue = evalue; \
3280af22 3459 if (PL_statusvalue != -1) { \
0968cdad
JM
3460 if (PL_statusvalue != EVMSERR) { \
3461 PL_statusvalue &= 0xFFFF; \
3462 if (MY_POSIX_EXIT) \
3463 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3464 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3465 } \
3466 else { \
3467 PL_statusvalue_vms = vaxc$errno; \
3468 } \
68dc0745 3469 } \
0968cdad
JM
3470 else PL_statusvalue_vms = SS$_ABORT; \
3471 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3472 } STMT_END
3473
3474 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3475 * the NATIVE error status based on it.
3476 *
3477 * When in the default mode to comply with the Perl VMS documentation,
3478 * 0 is a success and any other code sets the NATIVE status to a failure
3479 * code of SS$_ABORT.
fb38d079
JM
3480 *
3481 * In the new POSIX EXIT mode, native status will be set so that the
3482 * actual exit code will can be retrieved by the calling program or
3483 * shell.
3484 *
3485 * If the exit code is not clearly a UNIX parent or child exit status,
3486 * it will be passed through as a VMS status.
7a7fd8e0
JM
3487 */
3488
fb38d079 3489# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3490 STMT_START { \
3491 I32 evalue = (I32)n; \
3492 PL_statusvalue = evalue; \
e08e1e1d
JM
3493 if (MY_POSIX_EXIT) { \
3494 if (evalue <= 0xFF00) { \
3495 if (evalue > 0xFF) \
3496 evalue = (evalue >> child_offset_bits) & 0xFF; \
3497 PL_statusvalue_vms = \
3498 (C_FAC_POSIX | (evalue << 3 ) | \
3499 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3500 } else /* forgive them Perl, for they have sinned */ \
3501 PL_statusvalue_vms = evalue; \
3502 } else { \
3503 if (evalue == 0) \
3504 PL_statusvalue_vms = SS$_NORMAL; \
3505 else if (evalue <= 0xFF00) \
3506 PL_statusvalue_vms = SS$_ABORT; \
3507 else { /* forgive them Perl, for they have sinned */ \
3508 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3509 else PL_statusvalue_vms = vaxc$errno; \
3510 /* And obviously used a VMS status value instead of UNIX */ \
3511 PL_statusvalue = EVMSERR; \
3512 } \
3513 set_vaxc_errno(PL_statusvalue_vms); \
3514 } \
68dc0745 3515 } STMT_END
fb38d079 3516
e08e1e1d 3517
6ac6a52b
JM
3518 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3519 * and sets the NATIVE error status based on it. This special case
3520 * is needed to maintain compatibility with past VMS behavior.
3521 *
3522 * In the default mode on VMS, this number is passed through as
3523 * both the NATIVE and UNIX status. Which makes it different
3524 * that the STATUS_UNIX_EXIT_SET.
3525 *
3526 * In the new POSIX EXIT mode, native status will be set so that the
3527 * actual exit code will can be retrieved by the calling program or
3528 * shell.
3529 *
1a3aec58
JM
3530 * A POSIX exit code is from 0 to 255. If the exit code is higher
3531 * than this, it needs to be assumed that it is a VMS exit code and
3532 * passed through.
6ac6a52b
JM
3533 */
3534
3535# define STATUS_EXIT_SET(n) \
3536 STMT_START { \
3537 I32 evalue = (I32)n; \
3538 PL_statusvalue = evalue; \
3539 if (MY_POSIX_EXIT) \
1a3aec58
JM
3540 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3541 PL_statusvalue_vms = \
3542 (C_FAC_POSIX | (evalue << 3 ) | \
3543 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3544 else \
3545 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3546 set_vaxc_errno(PL_statusvalue_vms); \
3547 } STMT_END
3548
fb38d079
JM
3549
3550 /* This macro forces a success status */
7a7fd8e0
JM
3551# define STATUS_ALL_SUCCESS \
3552 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3553
3554 /* This macro forces a failure status */
7a7fd8e0
JM
3555# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3556 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3557 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3558
738ab09f
AB
3559#elif defined(__amigaos4__)
3560 /* A somewhat experimental attempt to simulate posix return code values */
3561# define STATUS_NATIVE PL_statusvalue_posix
3562# define STATUS_NATIVE_CHILD_SET(n) \
3563 STMT_START { \
3564 PL_statusvalue_posix = (n); \
3565 if (PL_statusvalue_posix < 0) { \
3566 PL_statusvalue = -1; \
3567 } \
3568 else { \
3569 PL_statusvalue = n << 8; \
3570 } \
3571 } STMT_END
3572# define STATUS_UNIX_SET(n) \
3573 STMT_START { \
3574 PL_statusvalue = (n); \
3575 if (PL_statusvalue != -1) \
3576 PL_statusvalue &= 0xFFFF; \
3577 } STMT_END
3578# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3579# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3580# define STATUS_CURRENT STATUS_UNIX
3581# define STATUS_EXIT STATUS_UNIX
3582# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3583# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3584
68dc0745 3585#else
e5218da5 3586# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3587# if defined(WCOREDUMP)
37038d91 3588# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3589 STMT_START { \
3590 PL_statusvalue_posix = (n); \
3591 if (PL_statusvalue_posix == -1) \
3592 PL_statusvalue = -1; \
3593 else { \
3594 PL_statusvalue = \
3595 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3596 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3597 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3598 } \
3599 } STMT_END
3600# elif defined(WIFEXITED)
37038d91 3601# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3602 STMT_START { \
3603 PL_statusvalue_posix = (n); \
3604 if (PL_statusvalue_posix == -1) \
3605 PL_statusvalue = -1; \
3606 else { \
3607 PL_statusvalue = \
3608 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3609 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3610 } \
3611 } STMT_END
3612# else
37038d91 3613# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3614 STMT_START { \
3615 PL_statusvalue_posix = (n); \
3616 if (PL_statusvalue_posix == -1) \
3617 PL_statusvalue = -1; \
3618 else { \
3619 PL_statusvalue = \
3620 PL_statusvalue_posix & 0xFFFF; \
3621 } \
3622 } STMT_END
3623# endif
3624# define STATUS_UNIX_SET(n) \
68dc0745 3625 STMT_START { \
3280af22
NIS
3626 PL_statusvalue = (n); \
3627 if (PL_statusvalue != -1) \
3628 PL_statusvalue &= 0xFFFF; \
68dc0745 3629 } STMT_END
7a7fd8e0 3630# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3631# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3632# define STATUS_CURRENT STATUS_UNIX
37038d91 3633# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3634# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3635# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3636#endif
3637
cc3604b1
GS
3638/* flags in PL_exit_flags for nature of exit() */
3639#define PERL_EXIT_EXPECTED 0x01
31d77e54 3640#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3641#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3642#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3643
b79b76e0 3644#ifndef PERL_CORE
a7cb1f99 3645/* format to use for version numbers in file/directory names */
273cf8d1 3646/* XXX move to Configure? */
b79b76e0
NC
3647/* This was only ever used for the current version, and that can be done at
3648 compile time, as PERL_FS_VERSION, so should we just delete it? */
3649# ifndef PERL_FS_VER_FMT
3650# define PERL_FS_VER_FMT "%d.%d.%d"
3651# endif
3652#endif
3653
3654#ifndef PERL_FS_VERSION
3655# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3656#endif
3657
45bc9206 3658/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3659 * performance issue, so we allow people to disable it. Also, if
3660 * we are using stdio, there are broken implementations of fflush(NULL)
3661 * out there, Solaris being the most prominent.
45bc9206
GS
3662 */
3663#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3664# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3665# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
da5fdda8
AC
3666# elif defined(FFLUSH_ALL)
3667# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
767df6a1 3668# else
da5fdda8 3669# define PERL_FLUSHALL_FOR_CHILD NOOP
66fe083f 3670# endif
45bc9206
GS
3671#endif
3672
7766f137
GS
3673#ifndef PERL_WAIT_FOR_CHILDREN
3674# define PERL_WAIT_FOR_CHILDREN NOOP
3675#endif
3676
ba869deb 3677/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3678#ifndef PERL_SET_INTERP
3679# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3680#endif
3681
3682#ifndef PERL_GET_INTERP
3683# define PERL_GET_INTERP (PL_curinterp)
3684#endif
3685
54aff467 3686#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3687# ifdef MULTIPLICITY
ba869deb 3688# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3689# endif
ba869deb
GS
3690# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3691#endif
3692
00f254e2 3693/*
8896765a 3694 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3695 All that is required is that the perl source does not
00f254e2
KW
3696 use "%-p" or "%-<number>p" or "%<number>p" formats.
3697 These formats will still work in perl code.
486ec47a 3698 See comments in sv.c for further details.
8896765a 3699
8896765a 3700 Robin Barker 2005-07-14
f46d31f2 3701
00f254e2 3702 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3703*/
8896765a
RB
3704
3705#ifndef SVf_
63ce7bf0 3706# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3707#endif
3708
8896765a 3709#ifndef SVf
104abab4 3710# define SVf "-p"
d2560b70
RB
3711#endif
3712
014ead4b 3713#ifndef SVf32
8896765a 3714# define SVf32 SVf_(32)
014ead4b
RB
3715#endif
3716
3717#ifndef SVf256
8896765a
RB
3718# define SVf256 SVf_(256)
3719#endif
3720
be2597df
MHM
3721#define SVfARG(p) ((void*)(p))
3722
20023040
FC
3723#ifndef HEKf
3724# define HEKf "2p"
3725#endif
3726
b8fa5213
FC
3727/* Not ideal, but we cannot easily include a number in an already-numeric
3728 * format sequence. */
3729#ifndef HEKf256
3730# define HEKf256 "3p"
3731#endif
3732
20023040
FC
3733#define HEKfARG(p) ((void*)(p))
3734
5c29a976
KW
3735/* Documented in perlguts
3736 *
eafff229
KW
3737 * %4p is a custom format
3738 */
b17a0679 3739#ifndef UTF8f
61608bb7 3740# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3741#endif
3742#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3743
0f94cb1f
FC
3744#define PNf UTF8f
3745#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3746
f46d31f2 3747#ifdef PERL_CORE
486ec47a 3748/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98 3749# undef UVf
da5fdda8
AC
3750#elif !defined(UVf)
3751# define UVf UVuf
d2560b70
RB
3752#endif
3753
6ff2ec7d
AC
3754#if !defined(DEBUGGING) && !defined(NDEBUG)
3755# define NDEBUG 1
cd13e623 3756#endif
6ff2ec7d 3757#include <assert.h>
cd13e623 3758
0dbb1585
AL
3759/* For functions that are marked as __attribute__noreturn__, it's not
3760 appropriate to call return. In either case, include the lint directive.
3761 */
3762#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3763# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3764#else
bc3d2941 3765# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH
3766#endif
3767
635aebb7 3768#ifdef HAS_BUILTIN_EXPECT