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silence some gcc -pendantic warnings
[perl5.git] / perl.h
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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 *
352d5a3a
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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
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
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37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
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40#endif
41
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42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
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45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
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51# define MULTIPLICITY
52# endif
53#endif
54
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55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
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61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
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67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
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73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
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79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
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86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
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92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
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94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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103# define USE_REENTRANT_API
104#endif
105
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106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
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108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
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113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
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
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138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
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143# else
144# define PERL_GET_VARS() PL_VarsPtr
145# endif
146# endif
147#endif
148
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149/* this used to be off by default, now its on, see perlio.h */
150#define PERLIO_FUNCS_CONST
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
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161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
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172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
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181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
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184# define pTHX_5 6
185# define pTHX_6 7
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186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
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190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
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195#endif
196
76e3520e 197#define STATIC static
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198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
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209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
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224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
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230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
fc6bde6f 234 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
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280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
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289
290
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291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
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297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
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308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
f7a9299a 312# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
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319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
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321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
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330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
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342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
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366 *
367 * But sometimes you just want to ignore the return value, e.g. on
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368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
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371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
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375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
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379 */
380#ifndef PERL_UNUSED_RESULT
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381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
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388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
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399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
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406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
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408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
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411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
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421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
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423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
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426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
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431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
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439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
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441# define pTHX void
442# define pTHX_
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443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
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446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
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448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
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452# define pTHX_5 5
453# define pTHX_6 6
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454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
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458#endif
459
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460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
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464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
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466# define pTHXo pTHX
467# define pTHXo_ pTHX_
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468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
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472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
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477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
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482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
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486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH
492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS
497#endif
498
5b692037
JH
499#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
500# ifndef PERL_USE_GCC_BRACE_GROUPS
501# define PERL_USE_GCC_BRACE_GROUPS
502# endif
503#endif
504
728e2803
PP
505/*
506 * STMT_START { statements; } STMT_END;
507 * can be used as a single statement, as in
508 * if (x) STMT_START { ... } STMT_END; else ...
509 *
510 * Trying to select a version that gives no warnings...
511 */
512#if !(defined(STMT_START) && defined(STMT_END))
5b692037 513# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 514# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
515# define STMT_END )
516# else
728e2803
PP
517# define STMT_START do
518# define STMT_END while (0)
728e2803
PP
519# endif
520#endif
521
d6f9c181
JH
522#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
523# define BYTEORDER 0x1234
79072805
LW
524#endif
525
526/* Overall memory policy? */
527#ifndef CONSERVATIVE
528# define LIBERAL 1
529#endif
530
8ada0baa
JH
531#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
532#define ASCIIish
533#else
534#undef ASCIIish
535#endif
536
79072805
LW
537/*
538 * The following contortions are brought to you on behalf of all the
539 * standards, semi-standards, de facto standards, not-so-de-facto standards
540 * of the world, as well as all the other botches anyone ever thought of.
541 * The basic theory is that if we work hard enough here, the rest of the
542 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
543 */
ac58e20f 544
ee0007ab 545/* define this once if either system, instead of cluttering up the src */
7c458fae 546#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
547#define DOSISH 1
548#endif
549
739a0b84 550#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
551# define STANDARD_C 1
552#endif
553
8d87852b 554#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
555# define DONT_DECLARE_STD 1
556#endif
557
352d5a3a 558#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 559# define VOL volatile
663a0e37 560#else
79072805 561# define VOL
663a0e37
LW
562#endif
563
284167a5
SM
564/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
565 * you get a perl without taint support, but doubtlessly with a lesser
566 * degree of support. Do not do so unless you know exactly what it means
567 * technically, have a good reason to do so, and know exactly how the
568 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
569 * a potential security risk due to flat out ignoring the security-relevant
570 * taint flags. This being said, a perl without taint support compiled in
571 * has marginal run-time performance benefits.
572 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
573 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
574 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
575 *
576 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 577 * voids your nonexistent warranty!
284167a5 578 */
dc6d7f5c 579#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
580# define NO_TAINT_SUPPORT 1
581#endif
582
583/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
584 * operations into no-ops for a very modest speed-up. Enable only if you
585 * know what you're doing: tests and CPAN modules' tests are bound to fail.
586 */
dc6d7f5c 587#ifdef NO_TAINT_SUPPORT
284167a5
SM
588# define TAINT NOOP
589# define TAINT_NOT NOOP
590# define TAINT_IF(c) NOOP
591# define TAINT_ENV() NOOP
592# define TAINT_PROPER(s) NOOP
593# define TAINT_set(s) NOOP
594# define TAINT_get 0
595# define TAINTING_get 0
596# define TAINTING_set(s) NOOP
597# define TAINT_WARN_get 0
598# define TAINT_WARN_set(s) NOOP
599#else
600# define TAINT (PL_tainted = TRUE)
601# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
602# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
603# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
604# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
605# define TAINT_set(s) (PL_tainted = (s))
606# define TAINT_get (PL_tainted)
607# define TAINTING_get (PL_tainting)
608# define TAINTING_set(s) (PL_tainting = (s))
609# define TAINT_WARN_get (PL_taint_warn)
610# define TAINT_WARN_set(s) (PL_taint_warn = (s))
611#endif
a687059c 612
20be6587
DM
613/* flags used internally only within pp_subst and pp_substcont */
614#ifdef PERL_CORE
615# define SUBST_TAINT_STR 1 /* string tainted */
616# define SUBST_TAINT_PAT 2 /* pattern tainted */
617# define SUBST_TAINT_REPL 4 /* replacement tainted */
618# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
619# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
620#endif
621
d460ef45 622/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
623 defines move there? If so, I could simplify this a lot. --AD 9/96.
624*/
625/* Process group stuff changed from traditional BSD to POSIX.
626 perlfunc.pod documents the traditional BSD-style syntax, so we'll
627 try to preserve that, if possible.
628*/
629#ifdef HAS_SETPGID
630# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 631#else
a6e633de
PP
632# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
633# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
634# else
635# ifdef HAS_SETPGRP2 /* DG/UX */
636# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
637# endif
638# endif
639#endif
640#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
641# define HAS_SETPGRP /* Well, effectively it does . . . */
642#endif
643
644/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
645 our life easier :-) so we'll try it.
646*/
647#ifdef HAS_GETPGID
648# define BSD_GETPGRP(pid) getpgid((pid))
649#else
650# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
651# define BSD_GETPGRP(pid) getpgrp((pid))
652# else
653# ifdef HAS_GETPGRP2 /* DG/UX */
654# define BSD_GETPGRP(pid) getpgrp2((pid))
655# endif
656# endif
657#endif
658#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
659# define HAS_GETPGRP /* Well, effectively it does . . . */
660#endif
661
d460ef45 662/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
663 have different behaviors, but perl.h used to define USE_BSDPGRP
664 (prior to 5.003_05) so some extension might depend on it.
665*/
666#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
667# ifndef USE_BSDPGRP
668# define USE_BSDPGRP
669# endif
663a0e37
LW
670#endif
671
486ec47a 672/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
673 pthread.h must be included before all other header files.
674*/
3db8f154 675#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
676# include <pthread.h>
677#endif
678
58ab9e8b 679#include <sys/types.h>
663a0e37 680
760ac839
LW
681#ifdef __cplusplus
682# ifndef I_STDARG
683# define I_STDARG 1
684# endif
685#endif
686
c7925a5e
DD
687/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
688 which is included from stdarg.h. Bad definition not present in SD 2008
689 SDK headers. wince.h is not yet included, so we cant fix this from there
690 since by then MB_CUR_MAX will be defined from stdlib.h.
691 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
692 since cewchar.h can't be included this early */
693#if defined(UNDER_CE) && (_MSC_VER < 1300)
694# define MB_CUR_MAX 1
695#endif
760ac839
LW
696#ifdef I_STDARG
697# include <stdarg.h>
698#else
699# ifdef I_VARARGS
700# include <varargs.h>
701# endif
702#endif
703
27db2737
JH
704#ifdef I_STDINT
705# include <stdint.h>
706#endif
707
fe14fcc3 708#include <ctype.h>
a0d0e21e
LW
709
710#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
711#undef METHOD
a0d0e21e
LW
712#endif
713
12ae5dfc
JH
714#ifdef PERL_MICRO
715# define NO_LOCALE
716#endif
717
4633a7c4 718#ifdef I_LOCALE
36477c24 719# include <locale.h>
4633a7c4
LW
720#endif
721
36477c24
PP
722#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
723# define USE_LOCALE
ccd65d51
KW
724# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
725 capability */
36477c24
PP
726# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
727 && defined(HAS_STRXFRM)
728# define USE_LOCALE_COLLATE
729# endif
730# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
731# define USE_LOCALE_CTYPE
732# endif
733# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
734# define USE_LOCALE_NUMERIC
735# endif
fa9b773e
KW
736# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
737# define USE_LOCALE_MESSAGES
738# endif
739# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
740# define USE_LOCALE_MONETARY
741# endif
56e45410
KW
742# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
743# define USE_LOCALE_TIME
744# endif
b385bb4d
KW
745# ifndef WIN32 /* No wrapper except on Windows */
746# define my_setlocale(a,b) setlocale(a,b)
747# endif
36477c24 748#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 749
3e669301
KW
750/* Is $^ENCODING set, or are we under the encoding pragma? */
751#define IN_ENCODING UNLIKELY(PL_encoding \
752 || (PL_lex_encoding && _get_encoding() != NULL))
47e13f24 753
fe14fcc3 754#include <setjmp.h>
79072805 755
a0d0e21e 756#ifdef I_SYS_PARAM
79072805
LW
757# ifdef PARAM_NEEDS_TYPES
758# include <sys/types.h>
759# endif
760# include <sys/param.h>
352d5a3a 761#endif
79072805 762
ce3470dc
AD
763/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
764 value something like 199306. This may be useful if no more-specific
765 feature test is available.
766*/
767#if defined(BSD)
768# ifndef BSDish
769# define BSDish
770# endif
771#endif
772
79072805 773/* Use all the "standard" definitions? */
a0d0e21e 774#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 775# include <stdlib.h>
ff68c719 776#endif
03a14243 777
3f270f98
JH
778/* If this causes problems, set i_unistd=undef in the hint file. */
779#ifdef I_UNISTD
780# include <unistd.h>
781#endif
782
de8ca8af
NT
783/* for WCOREDUMP */
784#ifdef I_SYS_WAIT
785# include <sys/wait.h>
786#endif
787
9969cdde 788#ifdef __SYMBIAN32__
27da23d5
JH
789# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
790#endif
791
21e89b5f 792#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 793EXTERN_C int syscall(int, ...);
2ef53570
JH
794#endif
795
21e89b5f 796#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 797EXTERN_C int usleep(unsigned int);
2ef53570
JH
798#endif
799
1109a392
MHM
800#ifdef PERL_CORE
801
802/* macros for correct constant construction */
803# if INTSIZE >= 2
804# define U16_CONST(x) ((U16)x##U)
805# else
806# define U16_CONST(x) ((U16)x##UL)
807# endif
808
809# if INTSIZE >= 4
810# define U32_CONST(x) ((U32)x##U)
811# else
812# define U32_CONST(x) ((U32)x##UL)
813# endif
814
815# ifdef HAS_QUAD
816# if INTSIZE >= 8
817# define U64_CONST(x) ((U64)x##U)
818# elif LONGSIZE >= 8
819# define U64_CONST(x) ((U64)x##UL)
820# elif QUADKIND == QUAD_IS_LONG_LONG
821# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
822# elif QUADKIND == QUAD_IS___INT64
823# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
824# else /* best guess we can make */
825# define U64_CONST(x) ((U64)x##UL)
826# endif
827# endif
828
829/* byte-swapping functions for big-/little-endian conversion */
830# define _swab_16_(x) ((U16)( \
831 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
832 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
833
834# define _swab_32_(x) ((U32)( \
835 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
836 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
837 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
838 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
839
840# ifdef HAS_QUAD
841# define _swab_64_(x) ((U64)( \
842 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
843 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
844 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
845 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
846 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
847 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
848 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
849 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
850# endif
851
9c17f24a
NC
852/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
853 at least on FreeBSD. YMMV, so experiment. */
854#ifndef PERL_ARENA_SIZE
855#define PERL_ARENA_SIZE 4080
856#endif
857
ccb2c8b8 858/* Maximum level of recursion */
2b9dff67
RGS
859#ifndef PERL_SUB_DEPTH_WARN
860#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
861#endif
862
1109a392
MHM
863#endif /* PERL_CORE */
864
bdf3085f
NC
865/* We no longer default to creating a new SV for GvSV.
866 Do this before embed. */
867#ifndef PERL_CREATE_GVSV
7459f06b
NC
868# ifndef PERL_DONT_CREATE_GVSV
869# define PERL_DONT_CREATE_GVSV
870# endif
bdf3085f
NC
871#endif
872
ca0c25f6
NC
873#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
874#define PERL_USES_PL_PIDSTATUS
875#endif
876
739a0b84 877#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
878#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
879#endif
880
c31fac66
GS
881#define MEM_SIZE Size_t
882
1936d2a7
NC
883/* Round all values passed to malloc up, by default to a multiple of
884 sizeof(size_t)
885*/
886#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
887#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
888#endif
889
f1200559
WH
890/* sv_grow() will expand strings by at least a certain percentage of
891 the previously *used* length to avoid excessive calls to realloc().
892 The default is 25% of the current length.
893*/
894#ifndef PERL_STRLEN_EXPAND_SHIFT
895# define PERL_STRLEN_EXPAND_SHIFT 2
896#endif
897
3800c318 898#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
899# include <stddef.h>
900# define STRUCT_OFFSET(s,m) offsetof(s,m)
901#else
902# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
903#endif
904
905/* ptrdiff_t is C11, so undef it under pedantic builds */
906#ifdef PERL_GCC_PEDANTIC
907# undef HAS_PTRDIFF_T
51371543
GS
908#endif
909
9969cdde 910#ifndef __SYMBIAN32__
27da23d5
JH
911# if defined(I_STRING) || defined(__cplusplus)
912# include <string.h>
913# else
914# include <strings.h>
915# endif
51371543
GS
916#endif
917
55497cff
PP
918/* This comes after <stdlib.h> so we don't try to change the standard
919 * library prototypes; we'll use our own in proto.h instead. */
03a14243 920
4633a7c4 921#ifdef MYMALLOC
86058a2d 922# ifdef PERL_POLLUTE_MALLOC
ee13e175 923# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
924# define Perl_malloc malloc
925# define Perl_calloc calloc
926# define Perl_realloc realloc
927# define Perl_mfree free
ee13e175 928# endif
86058a2d
GS
929# else
930# define EMBEDMYMALLOC /* for compatibility */
931# endif
827e134a 932
651b9576
GS
933# define safemalloc Perl_malloc
934# define safecalloc Perl_calloc
935# define saferealloc Perl_realloc
936# define safefree Perl_mfree
22f7c9c9
JH
937# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
938 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
939 code; \
940 } STMT_END
941# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
942 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
943# define panic_write2(s) write(2, s, strlen(s))
944# define CHECK_MALLOC_TAINT(newval) \
945 CHECK_MALLOC_TOO_LATE_FOR_( \
946 if (newval) { \
acfd4d8e 947 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 948 exit(1); })
22f7c9c9 949# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 950 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
951 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
952 }} STMT_END;
f2517201
GS
953#else /* MYMALLOC */
954# define safemalloc safesysmalloc
955# define safecalloc safesyscalloc
956# define saferealloc safesysrealloc
957# define safefree safesysfree
22f7c9c9
JH
958# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
959# define CHECK_MALLOC_TAINT(newval) ((void)0)
960# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 961#endif /* MYMALLOC */
4633a7c4 962
fe13d51d 963/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 964#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
965#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
966#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
967#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
968
a0d0e21e
LW
969#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
970#define strchr index
971#define strrchr rindex
972#endif
973
16d20bd9
AD
974#ifdef I_MEMORY
975# include <memory.h>
976#endif
977
fe14fcc3 978#ifdef HAS_MEMCPY
85e6fe83 979# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 980# ifndef memcpy
20ce7b12 981 extern char * memcpy (char*, char*, int);
ee0007ab
LW
982# endif
983# endif
984#else
985# ifndef memcpy
986# ifdef HAS_BCOPY
987# define memcpy(d,s,l) bcopy(s,d,l)
988# else
989# define memcpy(d,s,l) my_bcopy(s,d,l)
990# endif
991# endif
992#endif /* HAS_MEMCPY */
fe14fcc3 993
ee0007ab 994#ifdef HAS_MEMSET
85e6fe83 995# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 996# ifndef memset
20ce7b12 997 extern char *memset (char*, int, int);
ee0007ab
LW
998# endif
999# endif
ee0007ab 1000#else
12ae5dfc 1001# undef memset
fc36a67e 1002# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1003#endif /* HAS_MEMSET */
1004
85e6fe83 1005#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1006# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1007# define memmove(d,s,l) bcopy(s,d,l)
1008# else
2304df62 1009# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1010# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1011# else
79072805 1012# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1013# endif
352d5a3a 1014# endif
d9d8d8de 1015#endif
ee0007ab 1016
36477c24
PP
1017#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1018# undef HAS_MEMCMP
1019#endif
1020
1021#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1022# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1023# ifndef memcmp
20ce7b12 1024 extern int memcmp (char*, char*, int);
ee0007ab
LW
1025# endif
1026# endif
1027#else
1028# ifndef memcmp
ecfc5424 1029# define memcmp my_memcmp
352d5a3a 1030# endif
36477c24 1031#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1032
fc36a67e 1033#ifndef memzero
c635e13b
PP
1034# ifdef HAS_MEMSET
1035# define memzero(d,l) memset(d,0,l)
79072805 1036# else
c635e13b
PP
1037# ifdef HAS_BZERO
1038# define memzero(d,l) bzero(d,l)
79072805 1039# else
fc36a67e 1040# define memzero(d,l) my_bzero(d,l)
79072805
LW
1041# endif
1042# endif
d9d8d8de 1043#endif
378cc40b 1044
2f42fcb0 1045#ifndef PERL_MICRO
0f27ced1
JH
1046#ifndef memchr
1047# ifndef HAS_MEMCHR
1048# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1049# endif
1050#endif
2f42fcb0 1051#endif
0f27ced1 1052
36477c24
PP
1053#ifndef HAS_BCMP
1054# ifndef bcmp
1055# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1056# endif
36477c24 1057#endif /* !HAS_BCMP */
378cc40b 1058
ae986130 1059#ifdef I_NETINET_IN
79072805 1060# include <netinet/in.h>
ae986130
LW
1061#endif
1062
28e8609d
JH
1063#ifdef I_ARPA_INET
1064# include <arpa/inet.h>
1065#endif
1066
1aef975c 1067#ifdef I_SYS_STAT
84902520 1068# include <sys/stat.h>
1aef975c 1069#endif
79072805 1070
287a962e
JD
1071/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1072 This definition should ideally go into win32/win32.h, but S_IFIFO is
1073 used later here in perl.h before win32/win32.h is being included. */
1074#if !defined(S_IFIFO) && defined(_S_IFIFO)
1075# define S_IFIFO _S_IFIFO
1076#endif
1077
cc3315ba 1078/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1079 like UTekV) are broken, sometimes giving false positives. Undefine
1080 them here and let the code below set them to proper values.
1081
1082 The ghs macro stands for GreenHills Software C-1.8.5 which
1083 is the C compiler for sysV88 and the various derivatives.
1084 This header file bug is corrected in gcc-2.5.8 and later versions.
1085 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1086
cc3315ba 1087#if defined(m88k) && defined(ghs)
79072805
LW
1088# undef S_ISDIR
1089# undef S_ISCHR
1090# undef S_ISBLK
1091# undef S_ISREG
1092# undef S_ISFIFO
1093# undef S_ISLNK
ee0007ab 1094#endif
135863df 1095
663a0e37
LW
1096#ifdef I_TIME
1097# include <time.h>
ffed7fef 1098#endif
663a0e37 1099
fe14fcc3 1100#ifdef I_SYS_TIME
85e6fe83 1101# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1102# define KERNEL
1103# endif
1104# include <sys/time.h>
85e6fe83 1105# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1106# undef KERNEL
1107# endif
a687059c 1108#endif
135863df 1109
55497cff 1110#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1111# include <sys/times.h>
d9d8d8de 1112#endif
8d063cd8 1113
fe14fcc3 1114#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1115# undef HAS_STRERROR
663a0e37
LW
1116#endif
1117
1118#include <errno.h>
1e743fda 1119
acfe0abc 1120#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1121# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1122#endif
1123
da70cfc6 1124#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1125# include <sys/socket.h>
1126# if defined(USE_SOCKS) && defined(I_SOCKS)
1127# if !defined(INCLUDE_PROTOTYPES)
1128# define INCLUDE_PROTOTYPES /* for <socks.h> */
1129# define PERL_SOCKS_NEED_PROTOTYPES
1130# endif
1131# include <socks.h>
1132# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1133# undef INCLUDE_PROTOTYPES
1134# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1135# endif
d460ef45 1136# endif
1e743fda 1137# ifdef I_NETDB
2986a63f
JH
1138# ifdef NETWARE
1139# include<stdio.h>
1140# endif
1e743fda
JH
1141# include <netdb.h>
1142# endif
1143# ifndef ENOTSOCK
1144# ifdef I_NET_ERRNO
1145# include <net/errno.h>
1146# endif
1147# endif
1148#endif
1149
fa0a29af 1150/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1151 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1152 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1153#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1154# if defined(__THROW) && defined(__GLIBC__)
1155int sockatmark(int) __THROW;
1156# else
2ef53570 1157int sockatmark(int);
29820b6d 1158# endif
2ef53570
JH
1159#endif
1160
7e827271 1161#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
1162EXTERN_C int fchdir(int);
1163EXTERN_C int flock(int, int);
1164EXTERN_C int fseeko(FILE *, off_t, int);
1165EXTERN_C off_t ftello(FILE *);
1166#endif
1167
7e827271 1168#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1169EXTERN_C char *crypt(const char *, const char *);
7e827271 1170EXTERN_C char **environ;
1ccb7c8d
JH
1171#endif
1172
83a6ff2e 1173#if defined(__cplusplus)
ce3470dc 1174# if defined(BSDish)
b91fbb93 1175EXTERN_C char **environ;
83a6ff2e 1176# elif defined(__CYGWIN__)
667e2948
SP
1177EXTERN_C char *crypt(const char *, const char *);
1178#endif
83a6ff2e 1179#endif
667e2948 1180
1e743fda
JH
1181#ifdef SETERRNO
1182# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1183#endif
f86702cc
PP
1184
1185#ifdef VMS
1186# define SETERRNO(errcode,vmserrcode) \
1187 STMT_START { \
1188 set_errno(errcode); \
1189 set_vaxc_errno(vmserrcode); \
1190 } STMT_END
4ee39169
CS
1191# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1192# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1193# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1194# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1195
93189314
JH
1196# define LIB_INVARG LIB$_INVARG
1197# define RMS_DIR RMS$_DIR
1198# define RMS_FAC RMS$_FAC
1199# define RMS_FEX RMS$_FEX
1200# define RMS_FNF RMS$_FNF
1201# define RMS_IFI RMS$_IFI
1202# define RMS_ISI RMS$_ISI
1203# define RMS_PRV RMS$_PRV
1204# define SS_ACCVIO SS$_ACCVIO
1205# define SS_DEVOFFLINE SS$_DEVOFFLINE
1206# define SS_IVCHAN SS$_IVCHAN
1207# define SS_NORMAL SS$_NORMAL
8a9f18be 1208# define SS_NOPRIV SS$_NOPRIV
4388f261 1209# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1210#else
93189314
JH
1211# define LIB_INVARG 0
1212# define RMS_DIR 0
1213# define RMS_FAC 0
1214# define RMS_FEX 0
1215# define RMS_FNF 0
1216# define RMS_IFI 0
1217# define RMS_ISI 0
1218# define RMS_PRV 0
1219# define SS_ACCVIO 0
1220# define SS_DEVOFFLINE 0
1221# define SS_IVCHAN 0
1222# define SS_NORMAL 0
8a9f18be 1223# define SS_NOPRIV 0
4388f261 1224# define SS_BUFFEROVF 0
748a9306 1225#endif
ed6116ce 1226
6ca940a9
TC
1227#ifdef WIN32
1228# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1229# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1230# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1231# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1232#endif
1233
1234#ifdef OS2
1235# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1236# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1237# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1238# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1239#endif
1240
1241#ifndef SETERRNO
1242# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1243#endif
1244
1245#ifndef dSAVEDERRNO
1246# define dSAVEDERRNO int saved_errno
1247# define dSAVE_ERRNO int saved_errno = errno
1248# define SAVE_ERRNO (saved_errno = errno)
1249# define RESTORE_ERRNO (errno = saved_errno)
1250#endif
1251
f5fa9033 1252#define ERRSV GvSVn(PL_errgv)
dfd167e9 1253
b4f8d149 1254/* contains inlined gv_add_by_type */
dfd167e9 1255#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD
1256 SV ** const svp = &GvSV(PL_errgv); \
1257 if (!*svp) { \
1258 goto clresv_newemptypv; \
1259 } else if (SvREADONLY(*svp)) { \
1260 SvREFCNT_dec_NN(*svp); \
1261 clresv_newemptypv: \
1262 *svp = newSVpvs(""); \
dfd167e9 1263 } else { \
b4f8d149 1264 SV *const errsv = *svp; \
dfd167e9 1265 sv_setpvs(errsv, ""); \
b4f8d149 1266 SvPOK_only(errsv); \
dfd167e9
NC
1267 if (SvMAGICAL(errsv)) { \
1268 mg_free(errsv); \
1269 } \
dfd167e9
NC
1270 } \
1271 } STMT_END
1272
1273
414bf5ae
MHM
1274#ifdef PERL_CORE
1275# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1276# define DEFSV_set(sv) \
1277 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1278# define SAVE_DEFSV \
1279 ( \
1280 save_gp(PL_defgv, 0), \
1281 GvINTRO_off(PL_defgv), \
1282 SAVEGENERICSV(GvSV(PL_defgv)), \
1283 GvSV(PL_defgv) = NULL \
1284 )
414bf5ae
MHM
1285#else
1286# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1287# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1288# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1289#endif
38a03e6e 1290
55497cff 1291#ifndef errno
5ff3f7a4
GS
1292 extern int errno; /* ANSI allows errno to be an lvalue expr.
1293 * For example in multithreaded environments
1294 * something like this might happen:
1295 * extern int *_errno(void);
1296 * #define errno (*_errno()) */
d9d8d8de 1297#endif
663a0e37 1298
7e996671
KW
1299#define UNKNOWN_ERRNO_MSG "(unknown)"
1300
2304df62 1301#ifdef HAS_STRERROR
b3e384bf 1302# ifndef DONT_DECLARE_STD
a0d0e21e 1303# ifdef VMS
20ce7b12 1304 char *strerror (int,...);
a0d0e21e 1305# else
20ce7b12 1306 char *strerror (int);
a0d0e21e 1307# endif
b3e384bf
KW
1308# endif
1309# ifndef Strerror
1310# define Strerror strerror
1311# endif
2304df62
AD
1312#else
1313# ifdef HAS_SYS_ERRLIST
79072805
LW
1314 extern int sys_nerr;
1315 extern char *sys_errlist[];
2304df62
AD
1316# ifndef Strerror
1317# define Strerror(e) \
7e996671 1318 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1319# endif
79072805 1320# endif
35c8bce7 1321#endif
663a0e37 1322
2304df62 1323#ifdef I_SYS_IOCTL
79072805
LW
1324# ifndef _IOCTL_
1325# include <sys/ioctl.h>
1326# endif
a687059c
LW
1327#endif
1328
ee0007ab 1329#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1330# ifdef HAS_SOCKETPAIR
1331# undef HAS_SOCKETPAIR
1332# endif
2304df62
AD
1333# ifdef I_NDBM
1334# undef I_NDBM
79072805 1335# endif
a687059c
LW
1336#endif
1337
02fc2eee
NC
1338#ifndef HAS_SOCKETPAIR
1339# ifdef HAS_SOCKET
1340# define socketpair Perl_my_socketpair
1341# endif
1342#endif
1343
a687059c 1344#if INTSIZE == 2
79072805
LW
1345# define htoni htons
1346# define ntohi ntohs
a687059c 1347#else
79072805
LW
1348# define htoni htonl
1349# define ntohi ntohl
a687059c
LW
1350#endif
1351
a0d0e21e 1352/* Configure already sets Direntry_t */
35c8bce7 1353#if defined(I_DIRENT)
663a0e37 1354# include <dirent.h>
ae986130 1355#else
fe14fcc3 1356# ifdef I_SYS_NDIR
79a0689e 1357# include <sys/ndir.h>
663a0e37 1358# else
fe14fcc3 1359# ifdef I_SYS_DIR
79a0689e
LW
1360# ifdef hp9000s500
1361# include <ndir.h> /* may be wrong in the future */
1362# else
1363# include <sys/dir.h>
1364# endif
663a0e37
LW
1365# endif
1366# endif
4633a7c4 1367#endif
a687059c 1368
c623bd54
LW
1369/*
1370 * The following gobbledygook brought to you on behalf of __STDC__.
1371 * (I could just use #ifndef __STDC__, but this is more bulletproof
1372 * in the face of half-implementations.)
1373 */
1374
21e89b5f 1375#if defined(I_SYSMODE)
ca6e1c26
JH
1376#include <sys/mode.h>
1377#endif
1378
c623bd54
LW
1379#ifndef S_IFMT
1380# ifdef _S_IFMT
1381# define S_IFMT _S_IFMT
1382# else
1383# define S_IFMT 0170000
1384# endif
1385#endif
1386
1387#ifndef S_ISDIR
1388# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1389#endif
1390
1391#ifndef S_ISCHR
1392# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1393#endif
1394
1395#ifndef S_ISBLK
fe14fcc3
LW
1396# ifdef S_IFBLK
1397# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1398# else
1399# define S_ISBLK(m) (0)
1400# endif
c623bd54
LW
1401#endif
1402
1403#ifndef S_ISREG
1404# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1405#endif
1406
1407#ifndef S_ISFIFO
fe14fcc3
LW
1408# ifdef S_IFIFO
1409# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1410# else
1411# define S_ISFIFO(m) (0)
1412# endif
c623bd54
LW
1413#endif
1414
1415#ifndef S_ISLNK
1416# ifdef _S_ISLNK
1417# define S_ISLNK(m) _S_ISLNK(m)
1418# else
1419# ifdef _S_IFLNK
1420# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1421# else
1422# ifdef S_IFLNK
1423# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1424# else
1425# define S_ISLNK(m) (0)
1426# endif
1427# endif
1428# endif
1429#endif
1430
1431#ifndef S_ISSOCK
1432# ifdef _S_ISSOCK
1433# define S_ISSOCK(m) _S_ISSOCK(m)
1434# else
1435# ifdef _S_IFSOCK
1436# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1437# else
1438# ifdef S_IFSOCK
1439# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1440# else
1441# define S_ISSOCK(m) (0)
1442# endif
1443# endif
1444# endif
1445#endif
1446
1447#ifndef S_IRUSR
1448# ifdef S_IREAD
1449# define S_IRUSR S_IREAD
1450# define S_IWUSR S_IWRITE
1451# define S_IXUSR S_IEXEC
1452# else
1453# define S_IRUSR 0400
1454# define S_IWUSR 0200
1455# define S_IXUSR 0100
1456# endif
fac7cdfc 1457#endif
1458
1459#ifndef S_IRGRP
1460# ifdef S_IRUSR
1461# define S_IRGRP (S_IRUSR>>3)
1462# define S_IWGRP (S_IWUSR>>3)
1463# define S_IXGRP (S_IXUSR>>3)
1464# else
1465# define S_IRGRP 0040
1466# define S_IWGRP 0020
1467# define S_IXGRP 0010
1468# endif
1469#endif
1470
1471#ifndef S_IROTH
1472# ifdef S_IRUSR
1473# define S_IROTH (S_IRUSR>>6)
1474# define S_IWOTH (S_IWUSR>>6)
1475# define S_IXOTH (S_IXUSR>>6)
1476# else
1477# define S_IROTH 0040
1478# define S_IWOTH 0020
1479# define S_IXOTH 0010
1480# endif
c623bd54
LW
1481#endif
1482
1483#ifndef S_ISUID
1484# define S_ISUID 04000
1485#endif
1486
1487#ifndef S_ISGID
1488# define S_ISGID 02000
1489#endif
1490
ca6e1c26
JH
1491#ifndef S_IRWXU
1492# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1493#endif
ca6e1c26
JH
1494
1495#ifndef S_IRWXG
1496# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1497#endif
ca6e1c26
JH
1498
1499#ifndef S_IRWXO
1500# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1501#endif
ca6e1c26 1502
b6c36746 1503/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1504 * which would get included through <sys/file.h >, but that is 3000
1505 * lines in the future. --jhi */
1506
b6c36746 1507#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1508# define S_IREAD S_IRUSR
1509#endif
1510
b6c36746 1511#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1512# define S_IWRITE S_IWUSR
1513#endif
1514
1515#ifndef S_IEXEC
1516# define S_IEXEC S_IXUSR
1517#endif
1518
a0d0e21e 1519#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1520# define SLOPPYDIVIDE
1521#endif
1522
748a9306
LW
1523#ifdef UV
1524#undef UV
1525#endif
1526
ce582cee
NC
1527/* For the times when you want the return value of sprintf, and you want it
1528 to be the length. Can't have a thread variable passed in, because C89 has
1529 no varargs macros.
1530*/
1531#ifdef SPRINTF_RETURNS_STRLEN
1532# define my_sprintf sprintf
1533#else
1534# define my_sprintf Perl_my_sprintf
1535#endif
1536
5b692037
JH
1537/*
1538 * If we have v?snprintf() and the C99 variadic macros, we can just
1539 * use just the v?snprintf(). It is nice to try to trap the buffer
1540 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1541 * gcc statement expressions, then use the function wrappers which try
1542 * to trap the overflow. If we can use the gcc statement expressions,
1543 * we can try that even with the version that uses the C99 variadic
1544 * macros.
5b692037
JH
1545 */
1546
1208b3dd
JH
1547/* Note that we do not check against snprintf()/vsnprintf() returning
1548 * negative values because that is non-standard behaviour and we use
1549 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1550 * that should be true only if the snprintf()/vsnprintf() are true
1551 * to the standard. */
1552
e8549682
JH
1553#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
1554
a4eca1d4
JH
1555#ifdef USE_QUADMATH
1556# define my_snprintf Perl_my_snprintf
1557# define PERL_MY_SNPRINTF_GUARDED
1558#else
dfeee9b1 1559#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1560# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1561# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1562# define PERL_MY_SNPRINTF_GUARDED
5b692037 1563# else
e8549682 1564# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1565# endif
1566#else
1567# define my_snprintf Perl_my_snprintf
1208b3dd 1568# define PERL_MY_SNPRINTF_GUARDED
5b692037 1569#endif
a4eca1d4 1570#endif
5b692037 1571
a4eca1d4
JH
1572/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1573 * dies if called under USE_QUADMATH. */
dfeee9b1 1574#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1575# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1576# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1577# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1578# else
e8549682 1579# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1580# endif
1581#else
1582# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1583# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1584#endif
d9fad198 1585
e8549682
JH
1586/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1587 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1588 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1589 * completely ignore it: otherwise you cannot know whether your output
1590 * was too long.)
1591 *
1592 * int len = my_sprintf(buf, max, ...);
1593 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1594 *
1595 * The trick is that in certain platforms [a] the my_sprintf() already
1596 * contains the sanity check, while in certain platforms [b] it needs
1597 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1598 * platforms the POST_GUARD actually does nothing since the check has
1599 * already been done. Watch out for the max being the same in both calls.
1600 *
1601 * If you actually use the snprintf/vsnprintf return value already,
1602 * you assumedly are checking its validity somehow. But you can
1603 * insert the POST_GUARD() also in that case. */
1604
1605#ifndef PERL_MY_SNPRINTF_GUARDED
1606# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1607#else
1608# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1609#endif
1610
1611#ifndef PERL_MY_VSNPRINTF_GUARDED
1612# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1613#else
1614# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1615#endif
1616
a6cc4119
SP
1617#ifdef HAS_STRLCAT
1618# define my_strlcat strlcat
1619#else
1620# define my_strlcat Perl_my_strlcat
1621#endif
1622
1623#ifdef HAS_STRLCPY
1624# define my_strlcpy strlcpy
1625#else
1626# define my_strlcpy Perl_my_strlcpy
1627#endif
1628
05f13f53 1629/*
27d4fb96
PP
1630 The IV type is supposed to be long enough to hold any integral
1631 value or a pointer.
1632 --Andy Dougherty August 1996
1633*/
1634
a22e52b9
JH
1635typedef IVTYPE IV;
1636typedef UVTYPE UV;
8175356b 1637
10cc9d2a 1638#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1639# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1640# define IV_MAX INT64_MAX
1641# define IV_MIN INT64_MIN
1642# define UV_MAX UINT64_MAX
cae7ae48
JH
1643# ifndef UINT64_MIN
1644# define UINT64_MIN 0
1645# endif
5ff3f7a4
GS
1646# define UV_MIN UINT64_MIN
1647# else
1648# define IV_MAX PERL_QUAD_MAX
1649# define IV_MIN PERL_QUAD_MIN
1650# define UV_MAX PERL_UQUAD_MAX
1651# define UV_MIN PERL_UQUAD_MIN
1652# endif
cf2093f6
JH
1653# define IV_IS_QUAD
1654# define UV_IS_QUAD
79072805 1655#else
8175356b 1656# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1657# define IV_MAX INT32_MAX
1658# define IV_MIN INT32_MIN
716026f9
DL
1659# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1660# define UV_MAX UINT32_MAX
1661# else
1662# define UV_MAX 4294967295U
1663# endif
cae7ae48
JH
1664# ifndef UINT32_MIN
1665# define UINT32_MIN 0
1666# endif
5ff3f7a4
GS
1667# define UV_MIN UINT32_MIN
1668# else
1669# define IV_MAX PERL_LONG_MAX
1670# define IV_MIN PERL_LONG_MIN
1671# define UV_MAX PERL_ULONG_MAX
1672# define UV_MIN PERL_ULONG_MIN
1673# endif
8175356b 1674# if IVSIZE == 8
cf2093f6
JH
1675# define IV_IS_QUAD
1676# define UV_IS_QUAD
de1c2614
JH
1677# ifndef HAS_QUAD
1678# define HAS_QUAD
1679# endif
cf2093f6
JH
1680# else
1681# undef IV_IS_QUAD
1682# undef UV_IS_QUAD
9ea40801 1683#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1684/* We think that removing this decade-old undef this will cause too much
1685 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1686 However, we do need HAS_QUAD in the core for use by the drand48 code,
1687 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1688# undef HAS_QUAD
e25d460c 1689#endif
cf2093f6 1690# endif
79072805 1691#endif
d7d93a81 1692
6313e544
JH
1693#define Size_t_MAX (~(Size_t)0)
1694#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1695
cae7ae48 1696#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1697#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1698
28e5dec8 1699#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1700#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1701#endif
1702
d460ef45 1703/*
26bb67e2
JH
1704 * The macros INT2PTR and NUM2PTR are (despite their names)
1705 * bi-directional: they will convert int/float to or from pointers.
1706 * However the conversion to int/float are named explicitly:
1707 * PTR2IV, PTR2UV, PTR2NV.
1708 *
1709 * For int conversions we do not need two casts if pointers are
1710 * the same size as IV and UV. Otherwise we need an explicit
1711 * cast (PTRV) to avoid compiler warnings.
1712 */
56431972
RB
1713#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1714# define PTRV UV
1715# define INT2PTR(any,d) (any)(d)
1716#else
d460ef45 1717# if PTRSIZE == LONGSIZE
56431972 1718# define PTRV unsigned long
e91e3b10 1719# define PTR2ul(p) (unsigned long)(p)
42718184 1720# else
56431972 1721# define PTRV unsigned
42718184 1722# endif
e91e3b10
RB
1723#endif
1724
1725#ifndef INT2PTR
56431972 1726# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1727#endif
e91e3b10
RB
1728
1729#ifndef PTR2ul
1730# define PTR2ul(p) INT2PTR(unsigned long,p)
1731#endif
1732
56431972
RB
1733#define NUM2PTR(any,d) (any)(PTRV)(d)
1734#define PTR2IV(p) INT2PTR(IV,p)
1735#define PTR2UV(p) INT2PTR(UV,p)
1736#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1737#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1738
8141890a
JH
1739/* According to strict ANSI C89 one cannot freely cast between
1740 * data pointers and function (code) pointers. There are at least
1741 * two ways around this. One (used below) is to do two casts,
1742 * first the other pointer to an (unsigned) integer, and then
1743 * the integer to the other pointer. The other way would be
1744 * to use unions to "overlay" the pointers. For an example of
1745 * the latter technique, see union dirpu in struct xpvio in sv.h.
1746 * The only feasible use is probably temporarily storing
1747 * function pointers in a data pointer (such as a void pointer). */
1748
e91e3b10
RB
1749#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1750#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1751
65202027 1752#ifdef USE_LONG_DOUBLE
f3654d06
JH
1753# if LONG_DOUBLESIZE == DOUBLESIZE
1754# define LONG_DOUBLE_EQUALS_DOUBLE
1755# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1756# endif
1757#endif
1758
2d4389e4
JH
1759#ifdef OVR_DBL_DIG
1760/* Use an overridden DBL_DIG */
1761# ifdef DBL_DIG
1762# undef DBL_DIG
1763# endif
1764# define DBL_DIG OVR_DBL_DIG
1765#else
1766/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1767 default value for printing floating point numbers in Gconvert
1768 (see config.h). (It also has other uses, such as figuring out if
1769 a given precision of printing can be done with a double instead of
1770 a long double - Allen).
2d4389e4
JH
1771*/
1772#ifdef I_LIMITS
1773#include <limits.h>
1774#endif
1775#ifdef I_FLOAT
1776#include <float.h>
1777#endif
1778#ifndef HAS_DBL_DIG
1779#define DBL_DIG 15 /* A guess that works lots of places */
1780#endif
1781#endif
1782
1783#ifdef OVR_LDBL_DIG
1784/* Use an overridden LDBL_DIG */
1785# ifdef LDBL_DIG
1786# undef LDBL_DIG
1787# endif
1788# define LDBL_DIG OVR_LDBL_DIG
1789#else
1790/* The following is all to get LDBL_DIG, in order to pick a nice
1791 default value for printing floating point numbers in Gconvert.
1792 (see config.h)
1793*/
68d4903c
JH
1794# ifdef I_LIMITS
1795# include <limits.h>
1796# endif
1797# ifdef I_FLOAT
1798# include <float.h>
1799# endif
1800# ifndef HAS_LDBL_DIG
1801# if LONG_DOUBLESIZE == 10
1802# define LDBL_DIG 18 /* assume IEEE */
1803# else
1804# if LONG_DOUBLESIZE == 12
1805# define LDBL_DIG 18 /* gcc? */
1806# else
1807# if LONG_DOUBLESIZE == 16
1808# define LDBL_DIG 33 /* assume IEEE */
1809# else
1810# if LONG_DOUBLESIZE == DOUBLESIZE
1811# define LDBL_DIG DBL_DIG /* bummer */
1812# endif
1813# endif
1814# endif
1815# endif
1816# endif
2d4389e4
JH
1817#endif
1818
20f6aaab
AS
1819/*
1820 * This is for making sure we have a good DBL_MAX value, if possible,
1821 * either for usage as NV_MAX or for usage in figuring out if we can
1822 * fit a given long double into a double, if bug-fixing makes it
1823 * necessary to do so. - Allen <allens@cpan.org>
1824 */
1825
205f51d8
AS
1826#ifdef I_LIMITS
1827# include <limits.h>
20f6aaab
AS
1828#endif
1829
205f51d8
AS
1830#ifdef I_VALUES
1831# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1832# include <values.h>
1833# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1834# define DBL_MAX MAXDOUBLE
1835# endif
1836# if defined(MINDOUBLE) && !defined(DBL_MIN)
1837# define DBL_MIN MINDOUBLE
1838# endif
1839# endif
1840#endif /* defined(I_VALUES) */
1841
a22e52b9 1842typedef NVTYPE NV;
8175356b 1843
792d8dab
JH
1844#ifdef I_IEEEFP
1845# include <ieeefp.h>
1846#endif
923fc586 1847
c32c3de1
JH
1848#ifdef USING_MSVC6
1849/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1850 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1851# define NAN_COMPARE_BROKEN
1852#endif
1853#if defined(__DECC) && defined(__osf__)
1854/* Also Tru64 cc has broken NaN comparisons. */
1855# define NAN_COMPARE_BROKEN
c32c3de1
JH
1856#endif
1857
65202027 1858#ifdef USE_LONG_DOUBLE
923fc586
JH
1859# ifdef I_SUNMATH
1860# include <sunmath.h>
1861# endif
84e6cb05 1862# if defined(LDBL_DIG)
05b4a618
JH
1863# define NV_DIG LDBL_DIG
1864# ifdef LDBL_MANT_DIG
1865# define NV_MANT_DIG LDBL_MANT_DIG
1866# endif
1867# ifdef LDBL_MIN
1868# define NV_MIN LDBL_MIN
1869# endif
1870# ifdef LDBL_MAX
1871# define NV_MAX LDBL_MAX
1872# endif
1873# ifdef LDBL_MIN_EXP
1874# define NV_MIN_EXP LDBL_MIN_EXP
1875# endif
1876# ifdef LDBL_MAX_EXP
1877# define NV_MAX_EXP LDBL_MAX_EXP
1878# endif
1879# ifdef LDBL_MIN_10_EXP
1880# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1881# endif
1882# ifdef LDBL_MAX_10_EXP
1883# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1884# endif
1885# ifdef LDBL_EPSILON
1886# define NV_EPSILON LDBL_EPSILON
1887# endif
1888# ifdef LDBL_MAX
1889# define NV_MAX LDBL_MAX
20f6aaab 1890/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1891# else
05b4a618
JH
1892# ifdef HUGE_VALL
1893# define NV_MAX HUGE_VALL
f4a14a62
JH
1894# endif
1895# endif
1896# endif
84e6cb05 1897# if defined(HAS_SQRTL)
8a00eddc
JH
1898# define Perl_acos acosl
1899# define Perl_asin asinl
1900# define Perl_atan atanl
940e3d56
JH
1901# define Perl_atan2 atan2l
1902# define Perl_ceil ceill
1903# define Perl_cos cosl
8a00eddc 1904# define Perl_cosh coshl
940e3d56 1905# define Perl_exp expl
55da5e5b 1906/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1907# define Perl_floor floorl
1908# define Perl_fmod fmodl
1909# define Perl_log logl
8a00eddc 1910# define Perl_log10 log10l
940e3d56
JH
1911# define Perl_pow powl
1912# define Perl_sin sinl
8a00eddc 1913# define Perl_sinh sinhl
940e3d56 1914# define Perl_sqrt sqrtl
8a00eddc
JH
1915# define Perl_tan tanl
1916# define Perl_tanh tanhl
68d4903c 1917# endif
a3540c92 1918/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1919# ifndef Perl_modf
1920# ifdef HAS_MODFL
1921# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1922/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1923 prototype in <math.h> */
05b4a618 1924# ifndef HAS_MODFL_PROTO
a221a8a5 1925EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1926# endif
1927# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1928 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1929# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1930# endif
a3540c92 1931# endif
05b4a618
JH
1932# ifndef Perl_frexp
1933# ifdef HAS_FREXPL
1934# define Perl_frexp(x,y) frexpl(x,y)
1935# else
1936# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1937extern long double Perl_my_frexpl(long double x, int *e);
1938# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1939# endif
03476e8e 1940# endif
a3540c92 1941# endif
05b4a618
JH
1942# ifndef Perl_ldexp
1943# ifdef HAS_LDEXPL
1944# define Perl_ldexp(x, y) ldexpl(x,y)
1945# else
1946# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1947# define Perl_ldexp(x,y) scalbnl(x,y)
1948# endif
98181445
JH
1949# endif
1950# endif
38dbb4c5 1951# ifndef Perl_isnan
e4c957f4 1952# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1953# define Perl_isnan(x) isnanl(x)
1954# endif
1955# endif
1956# ifndef Perl_isinf
e4c957f4 1957# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1958# define Perl_isinf(x) isinfl(x)
bcd8bfa9 1959# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1960# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1961# endif
1962# endif
e38461cc
JH
1963# ifndef Perl_isfinite
1964# define Perl_isfinite(x) Perl_isfinitel(x)
1965# endif
84e6cb05
JH
1966#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1967# include <quadmath.h>
1968# define NV_DIG FLT128_DIG
1969# define NV_MANT_DIG FLT128_MANT_DIG
1970# define NV_MIN FLT128_MIN
1971# define NV_MAX FLT128_MAX
1972# define NV_MIN_EXP FLT128_MIN_EXP
1973# define NV_MAX_EXP FLT128_MAX_EXP
1974# define NV_EPSILON FLT128_EPSILON
1975# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1976# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH
1977# define Perl_acos acosq
1978# define Perl_asin asinq
1979# define Perl_atan atanq
1980# define Perl_atan2 atan2q
1981# define Perl_ceil ceilq
1982# define Perl_cos cosq
1983# define Perl_cosh coshq
1984# define Perl_exp expq
1985/* no Perl_fabs, but there's PERL_ABS */
1986# define Perl_floor floorq
1987# define Perl_fmod fmodq
1988# define Perl_log logq
1989# define Perl_log10 log10q
1990# define Perl_pow powq
1991# define Perl_sin sinq
1992# define Perl_sinh sinhq
1993# define Perl_sqrt sqrtq
1994# define Perl_tan tanq
1995# define Perl_tanh tanhq
1996# define Perl_modf(x,y) modfq(x,y)
1997# define Perl_frexp(x,y) frexpq(x,y)
1998# define Perl_ldexp(x, y) ldexpq(x,y)
1999# define Perl_isinf(x) isinfq(x)
2000# define Perl_isnan(x) isnanq(x)
2001# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2002#else
2d4389e4 2003# define NV_DIG DBL_DIG
d6c14000
JH
2004# ifdef DBL_MANT_DIG
2005# define NV_MANT_DIG DBL_MANT_DIG
2006# endif
06fc1729
JH
2007# ifdef DBL_MIN
2008# define NV_MIN DBL_MIN
2009# endif
2010# ifdef DBL_MAX
2011# define NV_MAX DBL_MAX
2012# endif
40bca5ae
JH
2013# ifdef DBL_MIN_EXP
2014# define NV_MIN_EXP DBL_MIN_EXP
2015# endif
2016# ifdef DBL_MAX_EXP
2017# define NV_MAX_EXP DBL_MAX_EXP
2018# endif
06fc1729
JH
2019# ifdef DBL_MIN_10_EXP
2020# define NV_MIN_10_EXP DBL_MIN_10_EXP
2021# endif
2022# ifdef DBL_MAX_10_EXP
2023# define NV_MAX_10_EXP DBL_MAX_10_EXP
2024# endif
2025# ifdef DBL_EPSILON
2026# define NV_EPSILON DBL_EPSILON
2027# endif
205f51d8 2028# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2029# define NV_MAX DBL_MAX
2030# define NV_MIN DBL_MIN
2031# else
2032# ifdef HUGE_VAL
2033# define NV_MAX HUGE_VAL
2034# endif
2035# endif
940e3d56 2036
55da5e5b 2037/* These math interfaces are C89. */
8a00eddc
JH
2038# define Perl_acos acos
2039# define Perl_asin asin
2040# define Perl_atan atan
940e3d56
JH
2041# define Perl_atan2 atan2
2042# define Perl_ceil ceil
2043# define Perl_cos cos
8a00eddc 2044# define Perl_cosh cosh
940e3d56 2045# define Perl_exp exp
55da5e5b 2046/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2047# define Perl_floor floor
2048# define Perl_fmod fmod
2049# define Perl_log log
8a00eddc 2050# define Perl_log10 log10
940e3d56
JH
2051# define Perl_pow pow
2052# define Perl_sin sin
8a00eddc 2053# define Perl_sinh sinh
940e3d56 2054# define Perl_sqrt sqrt
8a00eddc
JH
2055# define Perl_tan tan
2056# define Perl_tanh tanh
940e3d56
JH
2057
2058# define Perl_modf(x,y) modf(x,y)
2059# define Perl_frexp(x,y) frexp(x,y)
2060# define Perl_ldexp(x,y) ldexp(x,y)
2061
1a322af2
JH
2062# ifndef Perl_isnan
2063# ifdef HAS_ISNAN
2064# define Perl_isnan(x) isnan(x)
2065# endif
2066# endif
2067# ifndef Perl_isinf
2068# if defined(HAS_ISINF)
2069# define Perl_isinf(x) isinf(x)
bcd8bfa9 2070# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2071# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2072# endif
2073# endif
2074# ifndef Perl_isfinite
2075# ifdef HAS_ISFINITE
2076# define Perl_isfinite(x) isfinite(x)
2077# elif defined(HAS_FINITE)
2078# define Perl_isfinite(x) finite(x)
2079# endif
2080# endif
758a5d79
JH
2081#endif
2082
30404d48
JH
2083/* fpclassify(): C99. It is supposed to be a macro that switches on
2084* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2085#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2086# include <math.h>
25c46df8
JH
2087# if defined(FP_INFINITE) && defined(FP_NAN)
2088# define Perl_fp_class(x) fpclassify(x)
2089# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2090# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2091# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2092# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2093# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2094# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2095/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2096 * actually not the C99 fpclassify, with its own set of return defines. */
2097# define Perl_fp_class(x) fpclassify(x)
2098# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2099# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2100# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2101# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2102# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2103# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2104# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2105# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2106# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2107# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2108# else
2109# undef Perl_fp_class /* Unknown set of defines */
2110# endif
30404d48
JH
2111#endif
2112
25c46df8
JH
2113/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2114 * are identical to the C99 fpclassify(). */
2115#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2116# include <math.h>
558f3e66
CB
2117# ifdef __VMS
2118 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2119# include <fp.h>
56610b8f
CB
2120 /* oh, and the isnormal macro has a typo in it! */
2121# undef isnormal
2122# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2123# endif
25c46df8
JH
2124# if defined(FP_INFINITE) && defined(FP_NAN)
2125# define Perl_fp_class(x) fp_classify(x)
2126# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2127# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2128# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2129# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2130# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2131# else
2132# undef Perl_fp_class /* Unknown set of defines */
2133# endif
f279e099 2134#endif
205f51d8 2135
30404d48
JH
2136/* Feel free to check with me for the SGI manpages, SGI testing,
2137 * etcetera, if you want to try getting this to work with IRIX.
2138 *
2139 * - Allen <allens@cpan.org> */
2140
2141/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2142#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2143/* Solaris and IRIX have fpclass/fpclassl, but they are using
2144 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2145 * Define some symbols also as cpp symbols so we can detect them. */
2146# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2147# define FP_PINF FP_PINF
2148# define FP_QNAN FP_QNAN
2149# endif
f279e099 2150# include <math.h>
758a5d79
JH
2151# ifdef I_IEEFP
2152# include <ieeefp.h>
2153# endif
2154# ifdef I_FP
2155# include <fp.h>
2156# endif
2157# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2158# define Perl_fp_class(x) fpclassl(x)
758a5d79 2159# else
f279e099
JH
2160# define Perl_fp_class(x) fpclass(x)
2161# endif
25c46df8 2162# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2163# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2164# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2165# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2166# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2167# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2168# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2169# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2170# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2171# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2172# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2173# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2174# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2175# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2176# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2177# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2178# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2179# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2180# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2181# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2182# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2183# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2184# else
2185# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2186# endif
758a5d79
JH
2187#endif
2188
30404d48
JH
2189/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2190#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2191# include <math.h>
2192# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2193# include <fp_class.h>
2194# endif
25c46df8
JH
2195# if defined(FP_POS_INF) && defined(FP_QNAN)
2196# ifdef __irix__ /* XXX Configure test instead */
2197# ifdef USE_LONG_DOUBLE
2198# define Perl_fp_class(x) fp_class_l(x)
2199# else
2200# define Perl_fp_class(x) fp_class_d(x)
2201# endif
f279e099 2202# else
25c46df8
JH
2203# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2204# define Perl_fp_class(x) fp_classl(x)
2205# else
2206# define Perl_fp_class(x) fp_class(x)
2207# endif
f279e099 2208# endif
25c46df8
JH
2209# if defined(FP_POS_INF) && defined(FP_QNAN)
2210# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2211# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2212# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2213# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2214# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2215# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2216# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2217# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2218# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2219# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2220# else
25c46df8 2221# undef Perl_fp_class /* Unknown set of defines */
30404d48 2222# endif
f279e099 2223# endif
30404d48
JH
2224#endif
2225
052758ae 2226/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2227#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2228# include <math.h>
25c46df8
JH
2229# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2230# ifndef _cplusplus
2231# define Perl_fp_class(x) class(x)
2232# else
2233# define Perl_fp_class(x) _class(x)
2234# endif
2235# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2236# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2237# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2238# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2239# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2240# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2241# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2242# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2243# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2244# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2245# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2246# else
2247# undef Perl_fp_class /* Unknown set of defines */
2248# endif
758a5d79 2249# endif
30404d48
JH
2250#endif
2251
2252/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2253#ifdef WIN32
2254# ifndef Perl_isnan
2255# define Perl_isnan(x) _isnan(x)
2256# endif
2257# ifndef Perl_isfinite
2258# define Perl_isfinite(x) _finite(x)
2259# endif
2260# ifndef Perl_fp_class_snan
25c46df8
JH
2261/* No simple way to #define Perl_fp_class because _fpclass()
2262 * returns a set of bits. */
796ea9ea
JH
2263# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2264# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2265# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2266# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2267# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2268# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2269# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2270# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2271# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2272# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2273# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2274# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2275# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2276# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2277# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2278# endif
f279e099
JH
2279#endif
2280
2281#if !defined(Perl_fp_class_inf) && \
2282 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2283# define Perl_fp_class_inf(x) \
2284 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2285#endif
2286
2287#if !defined(Perl_fp_class_nan) && \
2288 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2289# define Perl_fp_class_nan(x) \
2290 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2291#endif
2292
2293#if !defined(Perl_fp_class_zero) && \
2294 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2295# define Perl_fp_class_zero(x) \
2296 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2297#endif
2298
2299#if !defined(Perl_fp_class_norm) && \
2300 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2301# define Perl_fp_class_norm(x) \
2302 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2303#endif
2304
2305#if !defined(Perl_fp_class_denorm) && \
2306 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2307# define Perl_fp_class_denorm(x) \
2308 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2309#endif
758a5d79 2310
1a322af2
JH
2311#ifdef UNDER_CE
2312int isnan(double d);
2313#endif
2314
758a5d79 2315#ifndef Perl_isnan
1a322af2
JH
2316# ifdef Perl_fp_class_nan
2317# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2318# else
1a322af2
JH
2319# ifdef HAS_UNORDERED
2320# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2321# else
1a322af2 2322# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2323# endif
2324# endif
2325#endif
2326
1a322af2
JH
2327#ifndef Perl_isinf
2328# ifdef Perl_fp_class_inf
2329# define Perl_isinf(x) Perl_fp_class_inf(x)
2330# endif
ca6c63e1
JH
2331#endif
2332
758a5d79 2333#ifndef Perl_isfinite
25c46df8 2334# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2335# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2336# elif defined(HAS_FINITE)
c496ca58 2337# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2338# elif defined(Perl_fp_class_finite)
2339# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2340# else
c496ca58
JH
2341/* For the infinities the multiplication returns nan,
2342 * for the nan the multiplication also returns nan,
2343 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2344# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2345# endif
65202027
DS
2346#endif
2347
25c46df8
JH
2348#ifndef Perl_isinf
2349# if defined(Perl_isfinite) && defined(Perl_isnan)
2350# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2351# endif
2352#endif
2353
d3685250
JH
2354/* We need Perl_isfinitel (ends with ell) (if available) even when
2355 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2356 * needs that. */
2357#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2358/* If isfinite() is a macro and looks like we have C99,
2359 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2360# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2361# define Perl_isfinitel(x) isfinite(x)
2362# elif defined(HAS_ISFINITEL)
2363# define Perl_isfinitel(x) isfinitel(x)
2364# elif defined(HAS_FINITEL)
2365# define Perl_isfinitel(x) finitel(x)
2366# elif defined(HAS_INFL) && defined(HAS_NANL)
2367# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2368# else
99bf9e32 2369# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2370# endif
2371#endif
2372
a36244b7
JH
2373/* The default is to use Perl's own atof() implementation (in numeric.c).
2374 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2375 * it is however best to use the native implementation of atof.
2376 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2377 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2378 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2379 * you may need to be using a different function than atof! */
a36244b7
JH
2380
2381#ifndef USE_PERL_ATOF
2382# ifndef _UNICOS
2383# define USE_PERL_ATOF
2384# endif
2385#else
2386# if USE_PERL_ATOF == 0
2387# undef USE_PERL_ATOF
2388# endif
2389#endif
2390
2391#ifdef USE_PERL_ATOF
2392# define Perl_atof(s) Perl_my_atof(s)
2393# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2394#else
2395# define Perl_atof(s) (NV)atof(s)
2396# define Perl_atof2(s, n) ((n) = atof(s))
2397#endif
cf2093f6 2398
d460ef45 2399/* Previously these definitions used hardcoded figures.
760ac839
LW
2400 * It is hoped these formula are more portable, although
2401 * no data one way or another is presently known to me.
2402 * The "PERL_" names are used because these calculated constants
2403 * do not meet the ANSI requirements for LONG_MAX, etc., which
2404 * need to be constants acceptable to #if - kja
2405 * define PERL_LONG_MAX 2147483647L
2406 * define PERL_LONG_MIN (-LONG_MAX - 1)
2407 * define PERL ULONG_MAX 4294967295L
2408 */
2409
2410#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2411# include <limits.h>
760ac839 2412#endif
205f51d8 2413/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2414 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2415
99abf803
PP
2416/*
2417 * Try to figure out max and min values for the integral types. THE CORRECT
2418 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2419 * following hacks are used if neither limits.h or values.h provide them:
2420 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2421 * for types < int: (unsigned TYPE)~(unsigned)0
2422 * The argument to ~ must be unsigned so that later signed->unsigned
2423 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2424 * and it must not be smaller than int because ~ does integral promotion.
2425 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2426 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2427 * The latter is a hack which happens to work on some machines but
2428 * does *not* catch any random system, or things like integer types
2429 * with NaN if that is possible.
2430 *
2431 * All of the types are explicitly cast to prevent accidental loss of
2432 * numeric range, and in the hope that they will be less likely to confuse
2433 * over-eager optimizers.
2434 *
2435 */
27d4fb96 2436
99abf803
PP
2437#define PERL_UCHAR_MIN ((unsigned char)0)
2438
2439#ifdef UCHAR_MAX
2440# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2441#else
99abf803
PP
2442# ifdef MAXUCHAR
2443# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2444# else
99abf803 2445# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2446# endif
2447#endif
d460ef45 2448
99abf803
PP
2449/*
2450 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2451 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2452 * depending on local options. Until Configure detects this (or at least
2453 * detects whether the "signed" keyword is available) the CHAR ranges
2454 * will not be included. UCHAR functions normally.
2455 * - kja
2456 */
27d4fb96 2457
99abf803
PP
2458#define PERL_USHORT_MIN ((unsigned short)0)
2459
2460#ifdef USHORT_MAX
2461# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2462#else
99abf803
PP
2463# ifdef MAXUSHORT
2464# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2465# else
ef2f54b0
CB
2466# ifdef USHRT_MAX
2467# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2468# else
2469# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2470# endif
27d4fb96
PP
2471# endif
2472#endif
2473
27d4fb96 2474#ifdef SHORT_MAX
99abf803 2475# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2476#else
2477# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2478# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2479# else
ef2f54b0
CB
2480# ifdef SHRT_MAX
2481# define PERL_SHORT_MAX ((short)SHRT_MAX)
2482# else
2483# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2484# endif
27d4fb96
PP
2485# endif
2486#endif
2487
2488#ifdef SHORT_MIN
99abf803 2489# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2490#else
2491# ifdef MINSHORT
99abf803 2492# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2493# else
ef2f54b0
CB
2494# ifdef SHRT_MIN
2495# define PERL_SHORT_MIN ((short)SHRT_MIN)
2496# else
2497# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2498# endif
27d4fb96
PP
2499# endif
2500#endif
2501
99abf803
PP
2502#ifdef UINT_MAX
2503# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2504#else
99abf803
PP
2505# ifdef MAXUINT
2506# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2507# else
99abf803 2508# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2509# endif
2510#endif
2511
99abf803 2512#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2513
2514#ifdef INT_MAX
99abf803 2515# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2516#else
2517# ifdef MAXINT /* Often used in <values.h> */
99abf803 2518# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2519# else
99abf803 2520# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2521# endif
2522#endif
2523
2524#ifdef INT_MIN
99abf803 2525# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2526#else
2527# ifdef MININT
99abf803 2528# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2529# else
2530# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2531# endif
2532#endif
2533
99abf803
PP
2534#ifdef ULONG_MAX
2535# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2536#else
99abf803
PP
2537# ifdef MAXULONG
2538# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2539# else
99abf803 2540# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2541# endif
2542#endif
2543
99abf803 2544#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2545
760ac839 2546#ifdef LONG_MAX
99abf803 2547# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2548#else
2549# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2550# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2551# else
99abf803 2552# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2553# endif
2554#endif
2555
2556#ifdef LONG_MIN
99abf803 2557# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2558#else
2559# ifdef MINLONG
99abf803 2560# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2561# else
27d4fb96 2562# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2563# endif
2564#endif
2565
d7d93a81 2566#ifdef UV_IS_QUAD
99abf803 2567
99abf803 2568# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2569# define PERL_UQUAD_MIN ((UV)0)
99abf803 2570# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2571# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2572
79072805
LW
2573#endif
2574
ee0007ab 2575typedef MEM_SIZE STRLEN;
450a55e4 2576
79072805
LW
2577typedef struct op OP;
2578typedef struct cop COP;
2579typedef struct unop UNOP;
2f7c6295 2580typedef struct unop_aux UNOP_AUX;
79072805
LW
2581typedef struct binop BINOP;
2582typedef struct listop LISTOP;
2583typedef struct logop LOGOP;
79072805
LW
2584typedef struct pmop PMOP;
2585typedef struct svop SVOP;
7934575e 2586typedef struct padop PADOP;
79072805 2587typedef struct pvop PVOP;
79072805 2588typedef struct loop LOOP;
b46e009d 2589typedef struct methop METHOP;
79072805 2590
7aef8e5b 2591#ifdef PERL_CORE
8be227ab
FC
2592typedef struct opslab OPSLAB;
2593typedef struct opslot OPSLOT;
2594#endif
2595
52db365a 2596typedef struct block_hooks BHK;
1830b3d9 2597typedef struct custom_op XOP;
52db365a 2598
cd1541b2
NC
2599typedef struct interpreter PerlInterpreter;
2600
d2b3f365 2601/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2602#if defined(__sgi)
d2b3f365 2603# define STRUCT_SV perl_sv
b8d3c5db
JH
2604#else
2605# define STRUCT_SV sv
2606#endif
2607typedef struct STRUCT_SV SV;
79072805
LW
2608typedef struct av AV;
2609typedef struct hv HV;
2610typedef struct cv CV;
d2f13c59 2611typedef struct p5rx REGEXP;
79072805 2612typedef struct gp GP;
0c30d9ec 2613typedef struct gv GV;
8990e307 2614typedef struct io IO;
c09156bb 2615typedef struct context PERL_CONTEXT;
79072805
LW
2616typedef struct block BLOCK;
2617
2618typedef struct magic MAGIC;
2619typedef struct xpv XPV;
2620typedef struct xpviv XPVIV;
ff68c719 2621typedef struct xpvuv XPVUV;
79072805
LW
2622typedef struct xpvnv XPVNV;
2623typedef struct xpvmg XPVMG;
2624typedef struct xpvlv XPVLV;
d361b004 2625typedef struct xpvinvlist XINVLIST;
79072805
LW
2626typedef struct xpvav XPVAV;
2627typedef struct xpvhv XPVHV;
2628typedef struct xpvgv XPVGV;
2629typedef struct xpvcv XPVCV;
2630typedef struct xpvbm XPVBM;
2631typedef struct xpvfm XPVFM;
8990e307 2632typedef struct xpvio XPVIO;
79072805
LW
2633typedef struct mgvtbl MGVTBL;
2634typedef union any ANY;
5f7fde29
GS
2635typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2636typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2637typedef struct clone_params CLONE_PARAMS;
2638
0f94cb1f 2639/* a pad is currently just an AV; but that might change,
7261499d
FC
2640 * so hide the type. */
2641typedef struct padlist PADLIST;
67634234 2642typedef AV PAD;
9b7476d7 2643typedef struct padnamelist PADNAMELIST;
0f94cb1f 2644typedef struct padname PADNAME;
67634234 2645
13b0f67d
DM
2646/* enable PERL_NEW_COPY_ON_WRITE by default */
2647#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2648# define PERL_NEW_COPY_ON_WRITE
2649#endif
07d01d6e 2650
db2c6cb3
FC
2651#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2652# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2653# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2654# else
2655# define PERL_ANY_COW
2656# endif
9f351b45
DM
2657#else
2658# define PERL_SAWAMPERSAND
db2c6cb3
FC
2659#endif
2660
40653c20
FC
2661#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2662# error PERL_DEBUG_READONLY_OPS only works with ithreads
2663#endif
2664
378cc40b 2665#include "handy.h"
64935bc6 2666#include "charclass_invlists.h"
a0d0e21e 2667
6b8eaf93 2668#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2669# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2670# define USE_64_BIT_RAWIO /* implicit */
2671# endif
4564133c
JH
2672#endif
2673
6b8eaf93
JH
2674/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2675 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2676 * however, because operating systems like to do that themself. */
2677#ifndef FSEEKSIZE
2678# ifdef HAS_FSEEKO
2679# define FSEEKSIZE LSEEKSIZE
2680# else
2681# define FSEEKSIZE LONGSIZE
d460ef45 2682# endif
6b8eaf93
JH
2683#endif
2684
2685#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2686# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2687# define USE_64_BIT_STDIO /* implicit */
2688# endif
2689#endif
4564133c 2690
09458382 2691#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2692# ifdef HAS_OFF64_T
2693# undef Off_t
2694# define Off_t off64_t
2695# undef LSEEKSIZE
2696# define LSEEKSIZE 8
5ff3f7a4 2697# endif
d9b3e12d
JH
2698/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2699 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2700 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2701# if defined(USE_OPEN64)
2702# define open open64
5ff3f7a4 2703# endif
d9b3e12d
JH
2704# if defined(USE_LSEEK64)
2705# define lseek lseek64
6b8eaf93
JH
2706# else
2707# if defined(USE_LLSEEK)
2708# define lseek llseek
2709# endif
d9b3e12d
JH
2710# endif
2711# if defined(USE_STAT64)
2712# define stat stat64
2713# endif
2714# if defined(USE_FSTAT64)
2715# define fstat fstat64
2716# endif
2717# if defined(USE_LSTAT64)
2718# define lstat lstat64
2719# endif
2720# if defined(USE_FLOCK64)
2721# define flock flock64
2722# endif
2723# if defined(USE_LOCKF64)
2724# define lockf lockf64
2725# endif
2726# if defined(USE_FCNTL64)
2727# define fcntl fcntl64
2728# endif
2729# if defined(USE_TRUNCATE64)
2730# define truncate truncate64
2731# endif
2732# if defined(USE_FTRUNCATE64)
2733# define ftruncate ftruncate64
2734# endif
2735#endif
2736
2737#ifdef USE_64_BIT_STDIO
2738# ifdef HAS_FPOS64_T
2739# undef Fpos_t
2740# define Fpos_t fpos64_t
2741# endif
2742/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2743 * will trigger defines like the ones below. Some 64-bit environments,
2744 * however, do not. */
2745# if defined(USE_FOPEN64)
2746# define fopen fopen64
2747# endif
2748# if defined(USE_FSEEK64)
6b8eaf93 2749# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2750# endif
2751# if defined(USE_FTELL64)
6b8eaf93 2752# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2753# endif
2754# if defined(USE_FSETPOS64)
2755# define fsetpos fsetpos64
2756# endif
2757# if defined(USE_FGETPOS64)
2758# define fgetpos fgetpos64
2759# endif
2760# if defined(USE_TMPFILE64)
2761# define tmpfile tmpfile64
2762# endif
2763# if defined(USE_FREOPEN64)
2764# define freopen freopen64
5ff3f7a4
GS
2765# endif
2766#endif
2767
e37778c2 2768#if defined(OS2)
2c2d71f5
JH
2769# include "iperlsys.h"
2770#endif
2771
748a9306 2772#ifdef DOSISH
19848b3f
JH
2773# if defined(OS2)
2774# include "os2ish.h"
2775# else
2776# include "dosish.h"
2777# endif
009819bb 2778#elif defined(VMS)
748a9306 2779# include "vmsish.h"
009819bb 2780#elif defined(PLAN9)
19848b3f 2781# include "./plan9/plan9ish.h"
009819bb 2782#elif defined(__VOS__)
196918b0
PG
2783# ifdef __GNUC__
2784# include "./vos/vosish.h"
2785# else
2786# include "vos/vosish.h"
2787# endif
009819bb 2788#elif defined(__SYMBIAN32__)
27da23d5 2789# include "symbian/symbianish.h"
009819bb 2790#elif defined(__HAIKU__)
df00ff3b 2791# include "haiku/haikuish.h"
009819bb 2792#else
19848b3f 2793# include "unixish.h"
13b6e58c
JH
2794#endif
2795
2946a158
JH
2796/* NSIG logic from Configure --> */
2797/* Strange style to avoid deeply-nested #if/#else/#endif */
2798#ifndef NSIG
2799# ifdef _NSIG
2800# define NSIG (_NSIG)
2801# endif
2802#endif
2803
2804#ifndef NSIG
2805# ifdef SIGMAX
2806# define NSIG (SIGMAX+1)
2807# endif
2808#endif
2809
2810#ifndef NSIG
2811# ifdef SIG_MAX
2812# define NSIG (SIG_MAX+1)
2813# endif
2814#endif
2815
2816#ifndef NSIG
2817# ifdef _SIG_MAX
2818# define NSIG (_SIG_MAX+1)
2819# endif
2820#endif
2821
2822#ifndef NSIG
2823# ifdef MAXSIG
2824# define NSIG (MAXSIG+1)
2825# endif
2826#endif
2827
2828#ifndef NSIG
2829# ifdef MAX_SIG
2830# define NSIG (MAX_SIG+1)
2831# endif
2832#endif
2833
2834#ifndef NSIG
2835# ifdef SIGARRAYSIZE
2836# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2837# endif
2838#endif
2839
2840#ifndef NSIG
2841# ifdef _sys_nsig
2842# define NSIG (_sys_nsig) /* Solaris 2.5 */
2843# endif
2844#endif
2845
2846/* Default to some arbitrary number that's big enough to get most
2847 of the common signals.
2848*/
2849#ifndef NSIG
2850# define NSIG 50
2851#endif
2852/* <-- NSIG logic from Configure */
2853
13b6e58c
JH
2854#ifndef NO_ENVIRON_ARRAY
2855# define USE_ENVIRON_ARRAY
2856#endif
32f822de 2857
c77b533b
JH
2858/*
2859 * initialise to avoid floating-point exceptions from overflow, etc
2860 */
2861#ifndef PERL_FPU_INIT
2862# ifdef HAS_FPSETMASK
2863# if HAS_FLOATINGPOINT_H
2864# include <floatingpoint.h>
2865# endif
ad3a8c67
NC
2866/* Some operating systems have this as a macro, which in turn expands to a comma
2867 expression, and the last sub-expression is something that gets calculated,
2868 and then they have the gall to warn that a value computed is not used. Hence
2869 cast to void. */
2870# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2871# else
2f42fcb0 2872# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2873# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2874# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2875# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2876# else
2877# define PERL_FPU_INIT
2f42fcb0 2878
7014c407 2879# endif
c77b533b
JH
2880# endif
2881#endif
b35112e7
CS
2882#ifndef PERL_FPU_PRE_EXEC
2883# define PERL_FPU_PRE_EXEC {
2884# define PERL_FPU_POST_EXEC }
2885#endif
c77b533b 2886
a308b05a
JH
2887/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2888 * We need to reenable the "invalid" trap because otherwise generation
2889 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2890 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2891#ifdef __osf__
2892# include <machine/fpu.h>
2893# define PERL_SYS_FPU_INIT \
2894 STMT_START { \
2895 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2896 signal(SIGFPE, SIG_IGN); \
2897 } STMT_END
2898#endif
94a08944
JH
2899/* In IRIX the default for Flush to Zero bit is true,
2900 * which means that results going below the minimum of normal
2901 * floating points go to zero, instead of going denormal/subnormal.
2902 * This is unlike almost any other system running Perl, so let's clear it.
2903 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2904 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2905 *
2906 * XXX The flush-to-zero behaviour should be a Configure scan.
2907 * To change the behaviour usually requires some system-specific
2908 * incantation, though, like the below. */
2909#ifdef __sgi
2910# include <sys/fpu.h>
2911# define PERL_SYS_FPU_INIT \
2912 STMT_START { \
2913 union fpc_csr csr; \
2914 csr.fc_word = get_fpc_csr(); \
2915 csr.fc_struct.flush = 0; \
2916 set_fpc_csr(csr.fc_word); \
2917 } STMT_END
2918#endif
a308b05a
JH
2919
2920#ifndef PERL_SYS_FPU_INIT
2921# define PERL_SYS_FPU_INIT NOOP
2922#endif
2923
cbec8ebe
DM
2924#ifndef PERL_SYS_INIT3_BODY
2925# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2926#endif
2927
eb533572 2928/*
dcccc8ff
KW
2929=head1 Miscellaneous Functions
2930
4ad9e498 2931=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2932Provides system-specific tune up of the C runtime environment necessary to
72d33970 2933run Perl interpreters. This should be called only once, before creating
eb533572
DM
2934any Perl interpreters.
2935
4ad9e498 2936=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2937Provides system-specific tune up of the C runtime environment necessary to
72d33970 2938run Perl interpreters. This should be called only once, before creating
eb533572
DM
2939any Perl interpreters.
2940
2941=for apidoc Am|void|PERL_SYS_TERM|
2942Provides system-specific clean up of the C runtime environment after
72d33970 2943running Perl interpreters. This should be called only once, after
eb533572
DM
2944freeing any remaining Perl interpreters.
2945
2946=cut
2947 */
2948
cbec8ebe
DM
2949#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2950#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2951#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2952
be708cc0
JH
2953#ifndef PERL_WRITE_MSG_TO_CONSOLE
2954# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2955#endif
2956
0f31cffe
GS
2957#ifndef MAXPATHLEN
2958# ifdef PATH_MAX
b990c8b2
JH
2959# ifdef _POSIX_PATH_MAX
2960# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2961/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2962 * included the null byte or not. Later amendments of POSIX,
2963 * XPG4, the Austin Group, and the Single UNIX Specification
2964 * all explicitly include the null byte in the PATH_MAX.
2965 * Ditto for _POSIX_PATH_MAX. */
2966# define MAXPATHLEN PATH_MAX
b990c8b2 2967# else
09448d78 2968# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2969# endif
2970# else
2971# define MAXPATHLEN (PATH_MAX+1)
2972# endif
0f31cffe 2973# else
d552bce8 2974# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2975# endif
2976#endif
2977
c80263a8
SH
2978/* In case Configure was not used (we are using a "canned config"
2979 * such as Win32, or a cross-compilation setup, for example) try going
2980 * by the gcc major and minor versions. One useful URL is
2981 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2982 * but contrary to this information warn_unused_result seems
2983 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2984 * Also, when building extensions with an installed perl, this allows
2985 * the user to upgrade gcc and get the right attributes, rather than
2986 * relying on the list generated at Configure time. --AD
c80263a8
SH
2987 * Set these up now otherwise we get confused when some of the <*thread.h>
2988 * includes below indirectly pull in <perlio.h> (which needs to know if we
2989 * have HASATTRIBUTE_FORMAT).
2990 */
2991
4d7c7898 2992#ifndef PERL_MICRO
fc2007d4 2993#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2994# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2995# define HASATTRIBUTE_DEPRECATED
2996# endif
c80263a8
SH
2997# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2998# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2999# if defined __MINGW32__
3000# define PRINTF_FORMAT_NULL_OK
3001# endif
c80263a8
SH
3002# endif
3003# if __GNUC__ >= 3 /* 3.0 -> */
3004# define HASATTRIBUTE_MALLOC
3005# endif
3006# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3007# define HASATTRIBUTE_NONNULL
3008# endif
3009# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3010# define HASATTRIBUTE_NORETURN
3011# endif
3012# if __GNUC__ >= 3 /* gcc 3.0 -> */
3013# define HASATTRIBUTE_PURE
3014# endif
42bf5550 3015# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
3016# define HASATTRIBUTE_UNUSED
3017# endif
d324fe49
AD
3018# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3019# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3020# endif
c80263a8
SH
3021# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3022# define HASATTRIBUTE_WARN_UNUSED_RESULT
3023# endif
3024#endif
00f254e2 3025#endif /* #ifndef PERL_MICRO */
c80263a8 3026
3db8f154 3027/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3028 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
3029 * this results in many functions being undeclared which bothers C++
3030 * May make sense to have threads after "*ish.h" anyway
3031 */
3032
3db8f154 3033#if defined(USE_ITHREADS)
2986a63f
JH
3034# ifdef NETWARE
3035# include <nw5thread.h>
3036# else
32f822de
GS
3037# ifdef WIN32
3038# include <win32thread.h>
3039# else
dd96f567
IZ
3040# ifdef OS2
3041# include "os2thread.h"
3042# else
7f3d1cf1 3043# ifdef I_MACH_CTHREADS
bdd66968 3044# include <mach/cthreads.h>
7f3d1cf1
BH
3045typedef cthread_t perl_os_thread;
3046typedef mutex_t perl_mutex;
3047typedef condition_t perl_cond;
3048typedef void * perl_key;
3049# else /* Posix threads */
1f5ae88c
JH
3050# ifdef I_PTHREAD
3051# include <pthread.h>
3052# endif
7f3d1cf1
BH
3053typedef pthread_t perl_os_thread;
3054typedef pthread_mutex_t perl_mutex;
3055typedef pthread_cond_t perl_cond;
3056typedef pthread_key_t perl_key;
3057# endif /* I_MACH_CTHREADS */
dd96f567 3058# endif /* OS2 */
32f822de 3059# endif /* WIN32 */
ef4abe76 3060# endif /* NETWARE */
3db8f154 3061#endif /* USE_ITHREADS */
c5be433b 3062
66a93824 3063#if defined(WIN32)
1feb2720 3064# include "win32.h"
c5be433b
GS
3065#endif
3066
2986a63f
JH
3067#ifdef NETWARE
3068# include "netware.h"
3069#endif
3070
e5218da5 3071#define STATUS_UNIX PL_statusvalue
68dc0745 3072#ifdef VMS
6b88bc9c 3073# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3074/*
3075 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3076 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3077 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3078 * be updated also.
3079 */
3080# include <stsdef.h>
3081# include <ssdef.h>
3082/* Presume this because if VMS changes it, it will require a new
3083 * set of APIs for waiting on children for binary compatibility.
3084 */
3085# define child_offset_bits (8)
3086# ifndef C_FAC_POSIX
3087# define C_FAC_POSIX 0x35A000
3088# endif
3089
3090/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3091 * platform from the existing UNIX or Native status values.
3092 */
3093
37038d91 3094# define STATUS_EXIT \
7a7fd8e0
JM
3095 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3096 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3097
7a7fd8e0 3098
fb38d079
JM
3099/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3100 * exit code and shifts the UNIX value over the correct number of bits to
3101 * be a child status. Usually the number of bits is 8, but that could be
3102 * platform dependent. The NATIVE status code is presumed to have either
3103 * from a child process.
7a7fd8e0
JM
3104 */
3105
fb38d079
JM
3106/* This is complicated. The child processes return a true native VMS
3107 status which must be saved. But there is an assumption in Perl that
3108 the UNIX child status has some relationship to errno values, so
00f254e2 3109 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3110 In order to get the string translation correct, for the error, errno
3111 must be EVMSERR, but that generates a different text message
3112 than what the test programs are expecting. So an errno value must
3113 be derived from the native status value when an error occurs.
3114 That will hide the true native status message. With this version of
3115 perl, the true native child status can always be retrieved so that
3116 is not a problem. But in this case, Pl_statusvalue and errno may
3117 have different values in them.
3118 */
7a7fd8e0 3119
fb38d079 3120# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3121 STMT_START { \
2fbb330f
JM
3122 I32 evalue = (I32)n; \
3123 if (evalue == EVMSERR) { \
3124 PL_statusvalue_vms = vaxc$errno; \
3125 PL_statusvalue = evalue; \
7a7fd8e0 3126 } else { \
2fbb330f 3127 PL_statusvalue_vms = evalue; \
fb38d079 3128 if (evalue == -1) { \
3280af22 3129 PL_statusvalue = -1; \
7a7fd8e0
JM
3130 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3131 } else \
fb38d079 3132 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3133 set_vaxc_errno(evalue); \
fb38d079
JM
3134 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3135 set_errno(EVMSERR); \
3136 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3137 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3138 } \
68dc0745 3139 } STMT_END
7a7fd8e0 3140
68dc0745 3141# ifdef VMSISH_STATUS
e5218da5 3142# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3143# else
e5218da5 3144# define STATUS_CURRENT STATUS_UNIX
68dc0745 3145# endif
7a7fd8e0
JM
3146
3147 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3148 * the NATIVE status to an equivalent value. Can not be used to translate
3149 * exit code values as exit code values are not guaranteed to have any
3150 * relationship at all to errno values.
3151 * This is used when Perl is forcing errno to have a specific value.
3152 */
e5218da5 3153# define STATUS_UNIX_SET(n) \
68dc0745 3154 STMT_START { \
7a7fd8e0 3155 I32 evalue = (I32)n; \
0968cdad 3156 PL_statusvalue = evalue; \
3280af22 3157 if (PL_statusvalue != -1) { \
0968cdad
JM
3158 if (PL_statusvalue != EVMSERR) { \
3159 PL_statusvalue &= 0xFFFF; \
3160 if (MY_POSIX_EXIT) \
3161 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3162 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3163 } \
3164 else { \
3165 PL_statusvalue_vms = vaxc$errno; \
3166 } \
68dc0745 3167 } \
0968cdad
JM
3168 else PL_statusvalue_vms = SS$_ABORT; \
3169 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3170 } STMT_END
3171
3172 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3173 * the NATIVE error status based on it.
3174 *
3175 * When in the default mode to comply with the Perl VMS documentation,
3176 * 0 is a success and any other code sets the NATIVE status to a failure
3177 * code of SS$_ABORT.
fb38d079
JM
3178 *
3179 * In the new POSIX EXIT mode, native status will be set so that the
3180 * actual exit code will can be retrieved by the calling program or
3181 * shell.
3182 *
3183 * If the exit code is not clearly a UNIX parent or child exit status,
3184 * it will be passed through as a VMS status.
7a7fd8e0
JM
3185 */
3186
fb38d079 3187# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3188 STMT_START { \
3189 I32 evalue = (I32)n; \
3190 PL_statusvalue = evalue; \
e08e1e1d
JM
3191 if (MY_POSIX_EXIT) { \
3192 if (evalue <= 0xFF00) { \
3193 if (evalue > 0xFF) \
3194 evalue = (evalue >> child_offset_bits) & 0xFF; \
3195 PL_statusvalue_vms = \
3196 (C_FAC_POSIX | (evalue << 3 ) | \
3197 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3198 } else /* forgive them Perl, for they have sinned */ \
3199 PL_statusvalue_vms = evalue; \
3200 } else { \
3201 if (evalue == 0) \
3202 PL_statusvalue_vms = SS$_NORMAL; \
3203 else if (evalue <= 0xFF00) \
3204 PL_statusvalue_vms = SS$_ABORT; \
3205 else { /* forgive them Perl, for they have sinned */ \
3206 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3207 else PL_statusvalue_vms = vaxc$errno; \
3208 /* And obviously used a VMS status value instead of UNIX */ \
3209 PL_statusvalue = EVMSERR; \
3210 } \
3211 set_vaxc_errno(PL_statusvalue_vms); \
3212 } \
68dc0745 3213 } STMT_END
fb38d079 3214
e08e1e1d 3215
6ac6a52b
JM
3216 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3217 * and sets the NATIVE error status based on it. This special case
3218 * is needed to maintain compatibility with past VMS behavior.
3219 *
3220 * In the default mode on VMS, this number is passed through as
3221 * both the NATIVE and UNIX status. Which makes it different
3222 * that the STATUS_UNIX_EXIT_SET.
3223 *
3224 * In the new POSIX EXIT mode, native status will be set so that the
3225 * actual exit code will can be retrieved by the calling program or
3226 * shell.
3227 *
1a3aec58
JM
3228 * A POSIX exit code is from 0 to 255. If the exit code is higher
3229 * than this, it needs to be assumed that it is a VMS exit code and
3230 * passed through.
6ac6a52b
JM
3231 */
3232
3233# define STATUS_EXIT_SET(n) \
3234 STMT_START { \
3235 I32 evalue = (I32)n; \
3236 PL_statusvalue = evalue; \
3237 if (MY_POSIX_EXIT) \
1a3aec58
JM
3238 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3239 PL_statusvalue_vms = \
3240 (C_FAC_POSIX | (evalue << 3 ) | \
3241 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3242 else \
3243 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3244 set_vaxc_errno(PL_statusvalue_vms); \
3245 } STMT_END
3246
fb38d079
JM
3247
3248 /* This macro forces a success status */
7a7fd8e0
JM
3249# define STATUS_ALL_SUCCESS \
3250 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3251
3252 /* This macro forces a failure status */
7a7fd8e0
JM
3253# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3254 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3255 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3256
68dc0745 3257#else
e5218da5 3258# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3259# if defined(WCOREDUMP)
37038d91 3260# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3261 STMT_START { \
3262 PL_statusvalue_posix = (n); \
3263 if (PL_statusvalue_posix == -1) \
3264 PL_statusvalue = -1; \
3265 else { \
3266 PL_statusvalue = \
3267 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3268 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3269 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3270 } \
3271 } STMT_END
3272# elif defined(WIFEXITED)
37038d91 3273# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3274 STMT_START { \
3275 PL_statusvalue_posix = (n); \
3276 if (PL_statusvalue_posix == -1) \
3277 PL_statusvalue = -1; \
3278 else { \
3279 PL_statusvalue = \
3280 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3281 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3282 } \
3283 } STMT_END
3284# else
37038d91 3285# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3286 STMT_START { \
3287 PL_statusvalue_posix = (n); \
3288 if (PL_statusvalue_posix == -1) \
3289 PL_statusvalue = -1; \
3290 else { \
3291 PL_statusvalue = \
3292 PL_statusvalue_posix & 0xFFFF; \
3293 } \
3294 } STMT_END
3295# endif
3296# define STATUS_UNIX_SET(n) \
68dc0745 3297 STMT_START { \
3280af22
NIS
3298 PL_statusvalue = (n); \
3299 if (PL_statusvalue != -1) \
3300 PL_statusvalue &= 0xFFFF; \
68dc0745 3301 } STMT_END
7a7fd8e0 3302# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3303# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3304# define STATUS_CURRENT STATUS_UNIX
37038d91 3305# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3306# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3307# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3308#endif
3309
cc3604b1
GS
3310/* flags in PL_exit_flags for nature of exit() */
3311#define PERL_EXIT_EXPECTED 0x01
31d77e54 3312#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3313#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3314#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3315
b79b76e0 3316#ifndef PERL_CORE
a7cb1f99 3317/* format to use for version numbers in file/directory names */
273cf8d1 3318/* XXX move to Configure? */
b79b76e0
NC
3319/* This was only ever used for the current version, and that can be done at
3320 compile time, as PERL_FS_VERSION, so should we just delete it? */
3321# ifndef PERL_FS_VER_FMT
3322# define PERL_FS_VER_FMT "%d.%d.%d"
3323# endif
3324#endif
3325
3326#ifndef PERL_FS_VERSION
3327# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3328#endif
3329
45bc9206 3330/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3331 * performance issue, so we allow people to disable it. Also, if
3332 * we are using stdio, there are broken implementations of fflush(NULL)
3333 * out there, Solaris being the most prominent.
45bc9206
GS
3334 */
3335#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3336# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3337# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3338# else
3339# ifdef FFLUSH_ALL
3340# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3341# else
c5be433b 3342# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3343# endif
66fe083f 3344# endif
45bc9206
GS
3345#endif
3346
7766f137
GS
3347#ifndef PERL_WAIT_FOR_CHILDREN
3348# define PERL_WAIT_FOR_CHILDREN NOOP
3349#endif
3350
ba869deb 3351/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3352#ifndef PERL_SET_INTERP
3353# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3354#endif
3355
3356#ifndef PERL_GET_INTERP
3357# define PERL_GET_INTERP (PL_curinterp)
3358#endif
3359
54aff467 3360#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3361# ifdef MULTIPLICITY
ba869deb 3362# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3363# endif
ba869deb
GS
3364# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3365#endif
3366
00f254e2 3367/*
8896765a 3368 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3369 All that is required is that the perl source does not
00f254e2
KW
3370 use "%-p" or "%-<number>p" or "%<number>p" formats.
3371 These formats will still work in perl code.
486ec47a 3372 See comments in sv.c for further details.
8896765a 3373
8896765a 3374 Robin Barker 2005-07-14
f46d31f2 3375
00f254e2 3376 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3377*/
8896765a
RB
3378
3379#ifndef SVf_
63ce7bf0 3380# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3381#endif
3382
8896765a 3383#ifndef SVf
104abab4 3384# define SVf "-p"
d2560b70
RB
3385#endif
3386
014ead4b 3387#ifndef SVf32
8896765a 3388# define SVf32 SVf_(32)
014ead4b
RB
3389#endif
3390
3391#ifndef SVf256
8896765a
RB
3392# define SVf256 SVf_(256)
3393#endif
3394
be2597df
MHM
3395#define SVfARG(p) ((void*)(p))
3396
20023040
FC
3397#ifndef HEKf
3398# define HEKf "2p"
3399#endif
3400
b8fa5213
FC
3401/* Not ideal, but we cannot easily include a number in an already-numeric
3402 * format sequence. */
3403#ifndef HEKf256
3404# define HEKf256 "3p"
3405#endif
3406
20023040
FC
3407#define HEKfARG(p) ((void*)(p))
3408
b17a0679
FC
3409/* Takes three arguments: is_utf8, length, str */
3410#ifndef UTF8f
61608bb7 3411# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3412#endif
3413#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3414
0f94cb1f
FC
3415#define PNf UTF8f
3416#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3417
f46d31f2 3418#ifdef PERL_CORE
486ec47a 3419/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3420# undef UVf
3421#else
170cd9e9
NC
3422# ifndef UVf
3423# define UVf UVuf
3424# endif
d2560b70
RB
3425#endif
3426
fcdf39cf
RGS
3427#ifdef HASATTRIBUTE_DEPRECATED
3428# define __attribute__deprecated__ __attribute__((deprecated))
3429#endif
0dbb1585
AL
3430#ifdef HASATTRIBUTE_FORMAT
3431# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3432#endif
3433#ifdef HASATTRIBUTE_MALLOC
77785eea 3434# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3435#endif
0dbb1585 3436#ifdef HASATTRIBUTE_NONNULL
abb2c242 3437# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3438#endif
0dbb1585 3439#ifdef HASATTRIBUTE_NORETURN
abb2c242 3440# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3441#endif
0dbb1585 3442#ifdef HASATTRIBUTE_PURE
abb2c242 3443# define __attribute__pure__ __attribute__((pure))
f22be1b8 3444#endif
0dbb1585
AL
3445#ifdef HASATTRIBUTE_UNUSED
3446# define __attribute__unused__ __attribute__((unused))
3447#endif
3448#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3449# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3450#endif
3451
0dbb1585 3452/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3453#ifndef __attribute__deprecated__
3454# define __attribute__deprecated__
3455#endif
0dbb1585
AL
3456#ifndef __attribute__format__
3457# define __attribute__format__(x,y,z)
3458#endif
f22be1b8 3459#ifndef __attribute__malloc__
abb2c242 3460# define __attribute__malloc__
f22be1b8
JH
3461#endif
3462#ifndef __attribute__nonnull__
abb2c242 3463# define __attribute__nonnull__(a)
f22be1b8
JH
3464#endif
3465#ifndef __attribute__noreturn__
abb2c242 3466# define __attribute__noreturn__
f22be1b8
JH
3467#endif
3468#ifndef __attribute__pure__
abb2c242 3469# define __attribute__pure__
f22be1b8 3470#endif
0dbb1585
AL
3471#ifndef __attribute__unused__
3472# define __attribute__unused__
3473#endif
f22be1b8 3474#ifndef __attribute__warn_unused_result__
abb2c242
JH
3475# define __attribute__warn_unused_result__
3476#endif
3477
6d59e610
LM
3478#ifdef I_ASSERT
3479# if !defined(DEBUGGING) && !defined(NDEBUG)
3480# define NDEBUG 1
3481# endif
cd13e623
JH
3482# include <assert.h>
3483#endif
3484
0dbb1585
AL
3485/* For functions that are marked as __attribute__noreturn__, it's not
3486 appropriate to call return. In either case, include the lint directive.
3487 */
3488#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3489# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3490#else
bc3d2941 3491# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH
3492#endif
3493
cdfeb707
RB
3494/* Some OS warn on NULL format to printf */
3495#ifdef PRINTF_FORMAT_NULL_OK
3496# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3497#else
00f254e2 3498# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3499#endif
3500
635aebb7 3501#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3502# define EXPECT(expr,val) __builtin_expect(expr,val)
3503#else
3504# define EXPECT(expr,val) (expr)
3505#endif
6d5abc62
NC
3506#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3507#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3508#ifdef HAS_BUILTIN_CHOOSE_EXPR
3509/* placeholder */
3510#endif
b37c2d43 3511
5074d4c5
LM
3512/* STATIC_ASSERT_GLOBAL/STATIC_ASSERT_STMT are like assert(), but for compile
3513 time invariants. That is, their argument must be a constant expression that
3514 can be verified by the compiler. This expression can contain anything that's
3515 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3516 the expression evaluates to 0, compilation fails.
3517 Because they generate no runtime code (i.e. their use is "free"), they're
3518 always active, even under non-DEBUGGING builds.
3519 STATIC_ASSERT_GLOBAL expands to a declaration and is suitable for use at
3520 file scope (outside of any function).
3521 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3522 function.
3523*/
7ea096df 3524#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610
LM
3525/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3526 builtin in C++11.
3527*/
7ea096df 3528/* IBM XL C V11 does not support _Static_assert, no matter what <assert.h> says */
ac892e4a
DM
3529# define STATIC_ASSERT_GLOBAL(COND) \
3530 GCC_DIAG_IGNORE(-Wpedantic); \
3531 static_assert(COND, #COND); \
3532 GCC_DIAG_RESTORE;
6d59e610
LM
3533#else
3534/* We use a bit-field instead of an array because gcc accepts
3535 'typedef char x[n]' where n is not a compile-time constant.
3536 We want to enforce constantness.
3537*/
3538# define STATIC_ASSERT_2(COND, SUFFIX) \
3539 typedef struct { \
3540 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3541 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3542# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3543# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3544#endif
3545/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3546 error (static_assert is a declaration, and only statements can have labels).
3547*/
3548#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD
3549
3550#ifndef __has_builtin
3551# define __has_builtin(x) 0 /* not a clang style compiler */
3552#endif
3553
3554/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3555 hint to a compiler about a statement of fact in a function call free
3556 expression, which allows the compiler to generate better machine code.
3557 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3558 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3559 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD
3560 intrinsic function, see its documents for more details.
3561*/
3562
3563#ifndef DEBUGGING
3564# if __has_builtin(__builtin_unreachable) \
d1020b40 3565 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD
3566# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3567# elif defined(_MSC_VER)
3568# define ASSUME(x) __assume(x)
3569# elif defined(__ARMCC_VERSION) /* untested */
3570# define ASSUME(x) __promise(x)
3571# else
3572/* a random compiler might define assert to its own special optimization token
3573 so pass it through to C lib as a last resort */
3574# define ASSUME(x) assert(x)
3575# endif
3576#else
3577# define ASSUME(x) assert(x)
3578#endif
3579
3580#define NOT_REACHED ASSUME(0)
3581
3fc1aec6
PP
3582/* Some unistd.h's give a prototype for pause() even though
3583 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3584 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3585*/
3586#ifdef HAS_PAUSE
3587#define Pause pause
3588#else
3589#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3590#endif
3591
3592#ifndef IOCPARM_LEN
3593# ifdef IOCPARM_MASK
61f1c44b 3594 /* on BSDish systems we're safe */
748a9306
LW
3595# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3596# else
61f1c44b 3597# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3598 /* on Linux systems we're safe; except when we're not [perl #38223] */
3599# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3600# else
748a9306 3601 /* otherwise guess at what's safe */
61f1c44b
JVD
3602# define IOCPARM_LEN(x) 256
3603# endif
748a9306 3604# endif
a0d0e21e
LW
3605#endif
3606
1761cee5 3607#if defined(__CYGWIN__)
521e0776
GS
3608/* USEMYBINMODE
3609 * This symbol, if defined, indicates that the program should
16fe6d59 3610 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3611 * that a file is in "binary" mode -- that is, that no translation
3612 * of bytes occurs on read or write operations.
3613 */
36894f0b 3614# define USEMYBINMODE /**/
77a40698 3615# include <io.h> /* for setmode() prototype */
16fe6d59 3616# define my_binmode(fp, iotype, mode) \
77a40698 3617 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3618#endif
3619
88d10794
JH
3620#ifdef __CYGWIN__
3621void init_os_extras(void);
3622#endif
3623
cea2e8a9
GS
3624#ifdef UNION_ANY_DEFINITION
3625UNION_ANY_DEFINITION;
3626#else
3627union any {
3628 void* any_ptr;
3629 I32 any_i32;
ae103e09 3630 U32 any_u32;
cea2e8a9 3631 IV any_iv;
c6bf6a65 3632 UV any_uv;
cea2e8a9 3633 long any_long;
9febdf04 3634 bool any_bool;
c76ac1ee 3635 void (*any_dptr) (void*);
acfe0abc 3636 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3637};
3638#endif
3639
acfe0abc 3640typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3641
3642#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3643#define FILTER_DATA(idx) \
3644 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3645#define FILTER_ISREADER(idx) \
3646 (PL_parser && PL_parser->rsfp_filters \
3647 && idx >= AvFILLp(PL_parser->rsfp_filters))
3648#define PERL_FILTER_EXISTS(i) \
3649 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3650 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3651
c5078cac
JH
3652#if defined(_AIX) && !defined(_AIX43)
3653#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3654/* We cannot include <crypt.h> to get the struct crypt_data
3655 * because of setkey prototype problems when threading */
3656typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3657 /* From OSF, Not needed in AIX
3658 char C[28], D[28];
3659 */
3660 char E[48];
3661 char KS[16][48];
3662 char block[66];
3663 char iobuf[16];
3664} CRYPTD;
3665#endif /* threading */
3666#endif /* AIX */
3667
fc6bde6f
DD
3668#ifndef PERL_CALLCONV
3669# ifdef __cplusplus
3670# define PERL_CALLCONV extern "C"
3671# else
3672# define PERL_CALLCONV
3673# endif
3674#endif
3675#ifndef PERL_CALLCONV_NO_RET
3676# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3677#endif
3678
3679/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3680 dont have a noreturn as a declaration specifier
3681*/
3682#ifndef PERL_STATIC_NO_RET
3683# define PERL_STATIC_NO_RET STATIC
3684#endif
3685/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3686 builds that dont have a noreturn as a declaration specifier
3687*/
3688#ifndef PERL_STATIC_INLINE_NO_RET
3689# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3690#endif
3691
e37778c2 3692#if !defined(OS2)
2c2d71f5
JH
3693# include "iperlsys.h"
3694#endif
504f80c1 3695
9c12f1e5 3696#ifdef __LIBCATAMOUNT__
00f254e2 3697#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3698#undef HAS_GROUP
3699#define FAKE_BIT_BUCKET
3700#endif
3701
d10dc2ae
JH
3702/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3703 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3704 * defined by Configure, despite their names being similar to the
3705 * other defines like USE_ITHREADS. Configure in fact knows nothing
3706 * about the randomised hashes. Therefore to enable/disable the hash
3707 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3708#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3709# define USE_HASH_SEED
504f80c1
JH
3710#endif
3711
598921a7
NC
3712/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3713 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3714 * it's not really needed.
3715 */
3716#if defined(WIN32)
3717# define YYTOKENTYPE
3718#endif
3719#include "perly.h"
3720
598921a7 3721
654eccd5
JD
3722/* macros to define bit-fields in structs. */
3723#ifndef PERL_BITFIELD8
3724# define PERL_BITFIELD8 unsigned
3725#endif
3726#ifndef PERL_BITFIELD16
3727# define PERL_BITFIELD16 unsigned
3728#endif
3729#ifndef PERL_BITFIELD32
3730# define PERL_BITFIELD32 unsigned
3731#endif
3732
79072805 3733#include "sv.h"
288b8c02 3734#include "regexp.h"
378cc40b