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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
LW
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
85e6fe83
LW
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
760ac839
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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,
7dc3eb73
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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
86a3cabf
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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. */
739a0b84
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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))
ad73156c
AL
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_
0cb96387
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443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
0cb96387
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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_
0cb96387
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468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
0cb96387
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472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
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477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
1de7c2ac
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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
27da23d5
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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>
6e3136a6
AB
781# if defined(__amigaos4__)
782/* Under AmigaOS 4 newlib.library provides an environ. However using
783 * it doesn't give us enough control over inheritance of variables by
784 * subshells etc. so replace with custom version based on abc-shell
785 * code. */
786extern char **myenviron;
787# undef environ
788# define environ myenviron
789# endif
3f270f98
JH
790#endif
791
de8ca8af
NT
792/* for WCOREDUMP */
793#ifdef I_SYS_WAIT
794# include <sys/wait.h>
795#endif
796
9969cdde 797#ifdef __SYMBIAN32__
27da23d5
JH
798# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
799#endif
800
21e89b5f 801#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 802EXTERN_C int syscall(int, ...);
2ef53570
JH
803#endif
804
21e89b5f 805#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 806EXTERN_C int usleep(unsigned int);
2ef53570
JH
807#endif
808
1109a392
MHM
809#ifdef PERL_CORE
810
811/* macros for correct constant construction */
812# if INTSIZE >= 2
813# define U16_CONST(x) ((U16)x##U)
814# else
815# define U16_CONST(x) ((U16)x##UL)
816# endif
817
818# if INTSIZE >= 4
819# define U32_CONST(x) ((U32)x##U)
820# else
821# define U32_CONST(x) ((U32)x##UL)
822# endif
823
824# ifdef HAS_QUAD
825# if INTSIZE >= 8
826# define U64_CONST(x) ((U64)x##U)
827# elif LONGSIZE >= 8
828# define U64_CONST(x) ((U64)x##UL)
829# elif QUADKIND == QUAD_IS_LONG_LONG
830# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
831# elif QUADKIND == QUAD_IS___INT64
832# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
833# else /* best guess we can make */
834# define U64_CONST(x) ((U64)x##UL)
835# endif
836# endif
837
838/* byte-swapping functions for big-/little-endian conversion */
839# define _swab_16_(x) ((U16)( \
840 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
841 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
842
843# define _swab_32_(x) ((U32)( \
844 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
845 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
846 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
847 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
848
849# ifdef HAS_QUAD
850# define _swab_64_(x) ((U64)( \
851 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
852 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
853 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
854 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
855 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
856 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
857 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
858 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
859# endif
860
9c17f24a
NC
861/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
862 at least on FreeBSD. YMMV, so experiment. */
863#ifndef PERL_ARENA_SIZE
864#define PERL_ARENA_SIZE 4080
865#endif
866
ccb2c8b8 867/* Maximum level of recursion */
2b9dff67
RGS
868#ifndef PERL_SUB_DEPTH_WARN
869#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
870#endif
871
1109a392
MHM
872#endif /* PERL_CORE */
873
bdf3085f
NC
874/* We no longer default to creating a new SV for GvSV.
875 Do this before embed. */
876#ifndef PERL_CREATE_GVSV
7459f06b
NC
877# ifndef PERL_DONT_CREATE_GVSV
878# define PERL_DONT_CREATE_GVSV
879# endif
bdf3085f
NC
880#endif
881
ca0c25f6
NC
882#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
883#define PERL_USES_PL_PIDSTATUS
884#endif
885
739a0b84 886#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
887#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
888#endif
889
c31fac66
GS
890#define MEM_SIZE Size_t
891
1936d2a7
NC
892/* Round all values passed to malloc up, by default to a multiple of
893 sizeof(size_t)
894*/
895#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
896#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
897#endif
898
f1200559
WH
899/* sv_grow() will expand strings by at least a certain percentage of
900 the previously *used* length to avoid excessive calls to realloc().
901 The default is 25% of the current length.
902*/
903#ifndef PERL_STRLEN_EXPAND_SHIFT
904# define PERL_STRLEN_EXPAND_SHIFT 2
905#endif
906
3800c318 907#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
908# include <stddef.h>
909# define STRUCT_OFFSET(s,m) offsetof(s,m)
910#else
911# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
912#endif
913
914/* ptrdiff_t is C11, so undef it under pedantic builds */
915#ifdef PERL_GCC_PEDANTIC
916# undef HAS_PTRDIFF_T
51371543
GS
917#endif
918
9969cdde 919#ifndef __SYMBIAN32__
27da23d5
JH
920# if defined(I_STRING) || defined(__cplusplus)
921# include <string.h>
922# else
923# include <strings.h>
924# endif
51371543
GS
925#endif
926
55497cff
PP
927/* This comes after <stdlib.h> so we don't try to change the standard
928 * library prototypes; we'll use our own in proto.h instead. */
03a14243 929
4633a7c4 930#ifdef MYMALLOC
86058a2d 931# ifdef PERL_POLLUTE_MALLOC
ee13e175 932# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
933# define Perl_malloc malloc
934# define Perl_calloc calloc
935# define Perl_realloc realloc
936# define Perl_mfree free
ee13e175 937# endif
86058a2d
GS
938# else
939# define EMBEDMYMALLOC /* for compatibility */
940# endif
827e134a 941
651b9576
GS
942# define safemalloc Perl_malloc
943# define safecalloc Perl_calloc
944# define saferealloc Perl_realloc
945# define safefree Perl_mfree
22f7c9c9
JH
946# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
947 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
948 code; \
949 } STMT_END
950# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
951 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
952# define panic_write2(s) write(2, s, strlen(s))
953# define CHECK_MALLOC_TAINT(newval) \
954 CHECK_MALLOC_TOO_LATE_FOR_( \
955 if (newval) { \
acfd4d8e 956 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 957 exit(1); })
22f7c9c9 958# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 959 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
960 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
961 }} STMT_END;
f2517201
GS
962#else /* MYMALLOC */
963# define safemalloc safesysmalloc
964# define safecalloc safesyscalloc
965# define saferealloc safesysrealloc
966# define safefree safesysfree
22f7c9c9
JH
967# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
968# define CHECK_MALLOC_TAINT(newval) ((void)0)
969# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 970#endif /* MYMALLOC */
4633a7c4 971
fe13d51d 972/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 973#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
974#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
975#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
976#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
977
a0d0e21e
LW
978#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
979#define strchr index
980#define strrchr rindex
981#endif
982
16d20bd9
AD
983#ifdef I_MEMORY
984# include <memory.h>
985#endif
986
fe14fcc3 987#ifdef HAS_MEMCPY
85e6fe83 988# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 989# ifndef memcpy
20ce7b12 990 extern char * memcpy (char*, char*, int);
ee0007ab
LW
991# endif
992# endif
993#else
994# ifndef memcpy
995# ifdef HAS_BCOPY
996# define memcpy(d,s,l) bcopy(s,d,l)
997# else
998# define memcpy(d,s,l) my_bcopy(s,d,l)
999# endif
1000# endif
1001#endif /* HAS_MEMCPY */
fe14fcc3 1002
ee0007ab 1003#ifdef HAS_MEMSET
85e6fe83 1004# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1005# ifndef memset
20ce7b12 1006 extern char *memset (char*, int, int);
ee0007ab
LW
1007# endif
1008# endif
ee0007ab 1009#else
12ae5dfc 1010# undef memset
fc36a67e 1011# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1012#endif /* HAS_MEMSET */
1013
85e6fe83 1014#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1015# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1016# define memmove(d,s,l) bcopy(s,d,l)
1017# else
2304df62 1018# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1019# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1020# else
79072805 1021# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1022# endif
352d5a3a 1023# endif
d9d8d8de 1024#endif
ee0007ab 1025
36477c24
PP
1026#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1027# undef HAS_MEMCMP
1028#endif
1029
1030#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1031# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1032# ifndef memcmp
20ce7b12 1033 extern int memcmp (char*, char*, int);
ee0007ab
LW
1034# endif
1035# endif
1036#else
1037# ifndef memcmp
ecfc5424 1038# define memcmp my_memcmp
352d5a3a 1039# endif
36477c24 1040#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1041
fc36a67e 1042#ifndef memzero
c635e13b
PP
1043# ifdef HAS_MEMSET
1044# define memzero(d,l) memset(d,0,l)
79072805 1045# else
c635e13b
PP
1046# ifdef HAS_BZERO
1047# define memzero(d,l) bzero(d,l)
79072805 1048# else
fc36a67e 1049# define memzero(d,l) my_bzero(d,l)
79072805
LW
1050# endif
1051# endif
d9d8d8de 1052#endif
378cc40b 1053
2f42fcb0 1054#ifndef PERL_MICRO
0f27ced1
JH
1055#ifndef memchr
1056# ifndef HAS_MEMCHR
1057# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1058# endif
1059#endif
2f42fcb0 1060#endif
0f27ced1 1061
36477c24
PP
1062#ifndef HAS_BCMP
1063# ifndef bcmp
1064# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1065# endif
36477c24 1066#endif /* !HAS_BCMP */
378cc40b 1067
ae986130 1068#ifdef I_NETINET_IN
79072805 1069# include <netinet/in.h>
ae986130
LW
1070#endif
1071
28e8609d
JH
1072#ifdef I_ARPA_INET
1073# include <arpa/inet.h>
1074#endif
1075
1aef975c 1076#ifdef I_SYS_STAT
84902520 1077# include <sys/stat.h>
1aef975c 1078#endif
79072805 1079
287a962e
JD
1080/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1081 This definition should ideally go into win32/win32.h, but S_IFIFO is
1082 used later here in perl.h before win32/win32.h is being included. */
1083#if !defined(S_IFIFO) && defined(_S_IFIFO)
1084# define S_IFIFO _S_IFIFO
1085#endif
1086
cc3315ba 1087/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1088 like UTekV) are broken, sometimes giving false positives. Undefine
1089 them here and let the code below set them to proper values.
1090
1091 The ghs macro stands for GreenHills Software C-1.8.5 which
1092 is the C compiler for sysV88 and the various derivatives.
1093 This header file bug is corrected in gcc-2.5.8 and later versions.
1094 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1095
cc3315ba 1096#if defined(m88k) && defined(ghs)
79072805
LW
1097# undef S_ISDIR
1098# undef S_ISCHR
1099# undef S_ISBLK
1100# undef S_ISREG
1101# undef S_ISFIFO
1102# undef S_ISLNK
ee0007ab 1103#endif
135863df 1104
663a0e37
LW
1105#ifdef I_TIME
1106# include <time.h>
ffed7fef 1107#endif
663a0e37 1108
fe14fcc3 1109#ifdef I_SYS_TIME
85e6fe83 1110# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1111# define KERNEL
1112# endif
1113# include <sys/time.h>
85e6fe83 1114# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1115# undef KERNEL
1116# endif
a687059c 1117#endif
135863df 1118
55497cff 1119#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1120# include <sys/times.h>
d9d8d8de 1121#endif
8d063cd8 1122
fe14fcc3 1123#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1124# undef HAS_STRERROR
663a0e37
LW
1125#endif
1126
1127#include <errno.h>
1e743fda 1128
acfe0abc 1129#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1130# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1131#endif
1132
da70cfc6 1133#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1134# include <sys/socket.h>
1135# if defined(USE_SOCKS) && defined(I_SOCKS)
1136# if !defined(INCLUDE_PROTOTYPES)
1137# define INCLUDE_PROTOTYPES /* for <socks.h> */
1138# define PERL_SOCKS_NEED_PROTOTYPES
1139# endif
1140# include <socks.h>
1141# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1142# undef INCLUDE_PROTOTYPES
1143# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1144# endif
d460ef45 1145# endif
1e743fda 1146# ifdef I_NETDB
2986a63f
JH
1147# ifdef NETWARE
1148# include<stdio.h>
1149# endif
1e743fda
JH
1150# include <netdb.h>
1151# endif
1152# ifndef ENOTSOCK
1153# ifdef I_NET_ERRNO
1154# include <net/errno.h>
1155# endif
1156# endif
1157#endif
1158
fa0a29af 1159/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1160 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1161 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1162#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1163# if defined(__THROW) && defined(__GLIBC__)
1164int sockatmark(int) __THROW;
1165# else
2ef53570 1166int sockatmark(int);
29820b6d 1167# endif
2ef53570
JH
1168#endif
1169
7e827271 1170#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
1171EXTERN_C int fchdir(int);
1172EXTERN_C int flock(int, int);
1173EXTERN_C int fseeko(FILE *, off_t, int);
1174EXTERN_C off_t ftello(FILE *);
1175#endif
1176
7e827271 1177#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1178EXTERN_C char *crypt(const char *, const char *);
7e827271 1179EXTERN_C char **environ;
1ccb7c8d
JH
1180#endif
1181
83a6ff2e 1182#if defined(__cplusplus)
ce3470dc 1183# if defined(BSDish)
b91fbb93 1184EXTERN_C char **environ;
83a6ff2e 1185# elif defined(__CYGWIN__)
667e2948
SP
1186EXTERN_C char *crypt(const char *, const char *);
1187#endif
83a6ff2e 1188#endif
667e2948 1189
1e743fda
JH
1190#ifdef SETERRNO
1191# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1192#endif
f86702cc
PP
1193
1194#ifdef VMS
1195# define SETERRNO(errcode,vmserrcode) \
1196 STMT_START { \
1197 set_errno(errcode); \
1198 set_vaxc_errno(vmserrcode); \
1199 } STMT_END
4ee39169
CS
1200# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1201# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1202# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1203# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1204
93189314
JH
1205# define LIB_INVARG LIB$_INVARG
1206# define RMS_DIR RMS$_DIR
1207# define RMS_FAC RMS$_FAC
1208# define RMS_FEX RMS$_FEX
1209# define RMS_FNF RMS$_FNF
1210# define RMS_IFI RMS$_IFI
1211# define RMS_ISI RMS$_ISI
1212# define RMS_PRV RMS$_PRV
1213# define SS_ACCVIO SS$_ACCVIO
1214# define SS_DEVOFFLINE SS$_DEVOFFLINE
1215# define SS_IVCHAN SS$_IVCHAN
1216# define SS_NORMAL SS$_NORMAL
8a9f18be 1217# define SS_NOPRIV SS$_NOPRIV
4388f261 1218# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1219#else
93189314
JH
1220# define LIB_INVARG 0
1221# define RMS_DIR 0
1222# define RMS_FAC 0
1223# define RMS_FEX 0
1224# define RMS_FNF 0
1225# define RMS_IFI 0
1226# define RMS_ISI 0
1227# define RMS_PRV 0
1228# define SS_ACCVIO 0
1229# define SS_DEVOFFLINE 0
1230# define SS_IVCHAN 0
1231# define SS_NORMAL 0
8a9f18be 1232# define SS_NOPRIV 0
4388f261 1233# define SS_BUFFEROVF 0
748a9306 1234#endif
ed6116ce 1235
6ca940a9
TC
1236#ifdef WIN32
1237# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1238# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1239# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1240# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1241#endif
1242
1243#ifdef OS2
1244# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1245# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1246# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1247# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1248#endif
1249
1250#ifndef SETERRNO
1251# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1252#endif
1253
1254#ifndef dSAVEDERRNO
1255# define dSAVEDERRNO int saved_errno
1256# define dSAVE_ERRNO int saved_errno = errno
1257# define SAVE_ERRNO (saved_errno = errno)
1258# define RESTORE_ERRNO (errno = saved_errno)
1259#endif
1260
f5fa9033 1261#define ERRSV GvSVn(PL_errgv)
dfd167e9 1262
b4f8d149 1263/* contains inlined gv_add_by_type */
dfd167e9 1264#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD
1265 SV ** const svp = &GvSV(PL_errgv); \
1266 if (!*svp) { \
1267 goto clresv_newemptypv; \
1268 } else if (SvREADONLY(*svp)) { \
1269 SvREFCNT_dec_NN(*svp); \
1270 clresv_newemptypv: \
1271 *svp = newSVpvs(""); \
dfd167e9 1272 } else { \
b4f8d149 1273 SV *const errsv = *svp; \
dfd167e9 1274 sv_setpvs(errsv, ""); \
b4f8d149 1275 SvPOK_only(errsv); \
dfd167e9
NC
1276 if (SvMAGICAL(errsv)) { \
1277 mg_free(errsv); \
1278 } \
dfd167e9
NC
1279 } \
1280 } STMT_END
1281
1282
414bf5ae
MHM
1283#ifdef PERL_CORE
1284# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1285# define DEFSV_set(sv) \
1286 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1287# define SAVE_DEFSV \
1288 ( \
1289 save_gp(PL_defgv, 0), \
1290 GvINTRO_off(PL_defgv), \
1291 SAVEGENERICSV(GvSV(PL_defgv)), \
1292 GvSV(PL_defgv) = NULL \
1293 )
414bf5ae
MHM
1294#else
1295# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1296# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1297# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1298#endif
38a03e6e 1299
55497cff 1300#ifndef errno
5ff3f7a4
GS
1301 extern int errno; /* ANSI allows errno to be an lvalue expr.
1302 * For example in multithreaded environments
1303 * something like this might happen:
1304 * extern int *_errno(void);
1305 * #define errno (*_errno()) */
d9d8d8de 1306#endif
663a0e37 1307
7e996671
KW
1308#define UNKNOWN_ERRNO_MSG "(unknown)"
1309
2304df62 1310#ifdef HAS_STRERROR
b3e384bf 1311# ifndef DONT_DECLARE_STD
a0d0e21e 1312# ifdef VMS
20ce7b12 1313 char *strerror (int,...);
a0d0e21e 1314# else
20ce7b12 1315 char *strerror (int);
a0d0e21e 1316# endif
b3e384bf
KW
1317# endif
1318# ifndef Strerror
1319# define Strerror strerror
1320# endif
2304df62
AD
1321#else
1322# ifdef HAS_SYS_ERRLIST
79072805
LW
1323 extern int sys_nerr;
1324 extern char *sys_errlist[];
2304df62
AD
1325# ifndef Strerror
1326# define Strerror(e) \
7e996671 1327 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1328# endif
79072805 1329# endif
35c8bce7 1330#endif
663a0e37 1331
2304df62 1332#ifdef I_SYS_IOCTL
79072805
LW
1333# ifndef _IOCTL_
1334# include <sys/ioctl.h>
1335# endif
a687059c
LW
1336#endif
1337
ee0007ab 1338#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1339# ifdef HAS_SOCKETPAIR
1340# undef HAS_SOCKETPAIR
1341# endif
2304df62
AD
1342# ifdef I_NDBM
1343# undef I_NDBM
79072805 1344# endif
a687059c
LW
1345#endif
1346
02fc2eee
NC
1347#ifndef HAS_SOCKETPAIR
1348# ifdef HAS_SOCKET
1349# define socketpair Perl_my_socketpair
1350# endif
1351#endif
1352
a687059c 1353#if INTSIZE == 2
79072805
LW
1354# define htoni htons
1355# define ntohi ntohs
a687059c 1356#else
79072805
LW
1357# define htoni htonl
1358# define ntohi ntohl
a687059c
LW
1359#endif
1360
a0d0e21e 1361/* Configure already sets Direntry_t */
35c8bce7 1362#if defined(I_DIRENT)
663a0e37 1363# include <dirent.h>
ae986130 1364#else
fe14fcc3 1365# ifdef I_SYS_NDIR
79a0689e 1366# include <sys/ndir.h>
663a0e37 1367# else
fe14fcc3 1368# ifdef I_SYS_DIR
79a0689e
LW
1369# ifdef hp9000s500
1370# include <ndir.h> /* may be wrong in the future */
1371# else
1372# include <sys/dir.h>
1373# endif
663a0e37
LW
1374# endif
1375# endif
4633a7c4 1376#endif
a687059c 1377
c623bd54
LW
1378/*
1379 * The following gobbledygook brought to you on behalf of __STDC__.
1380 * (I could just use #ifndef __STDC__, but this is more bulletproof
1381 * in the face of half-implementations.)
1382 */
1383
21e89b5f 1384#if defined(I_SYSMODE)
ca6e1c26
JH
1385#include <sys/mode.h>
1386#endif
1387
c623bd54
LW
1388#ifndef S_IFMT
1389# ifdef _S_IFMT
1390# define S_IFMT _S_IFMT
1391# else
1392# define S_IFMT 0170000
1393# endif
1394#endif
1395
1396#ifndef S_ISDIR
1397# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1398#endif
1399
1400#ifndef S_ISCHR
1401# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1402#endif
1403
1404#ifndef S_ISBLK
fe14fcc3
LW
1405# ifdef S_IFBLK
1406# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1407# else
1408# define S_ISBLK(m) (0)
1409# endif
c623bd54
LW
1410#endif
1411
1412#ifndef S_ISREG
1413# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1414#endif
1415
1416#ifndef S_ISFIFO
fe14fcc3
LW
1417# ifdef S_IFIFO
1418# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1419# else
1420# define S_ISFIFO(m) (0)
1421# endif
c623bd54
LW
1422#endif
1423
1424#ifndef S_ISLNK
1425# ifdef _S_ISLNK
1426# define S_ISLNK(m) _S_ISLNK(m)
1427# else
1428# ifdef _S_IFLNK
1429# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1430# else
1431# ifdef S_IFLNK
1432# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1433# else
1434# define S_ISLNK(m) (0)
1435# endif
1436# endif
1437# endif
1438#endif
1439
1440#ifndef S_ISSOCK
1441# ifdef _S_ISSOCK
1442# define S_ISSOCK(m) _S_ISSOCK(m)
1443# else
1444# ifdef _S_IFSOCK
1445# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1446# else
1447# ifdef S_IFSOCK
1448# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1449# else
1450# define S_ISSOCK(m) (0)
1451# endif
1452# endif
1453# endif
1454#endif
1455
1456#ifndef S_IRUSR
1457# ifdef S_IREAD
1458# define S_IRUSR S_IREAD
1459# define S_IWUSR S_IWRITE
1460# define S_IXUSR S_IEXEC
1461# else
1462# define S_IRUSR 0400
1463# define S_IWUSR 0200
1464# define S_IXUSR 0100
1465# endif
fac7cdfc 1466#endif
1467
1468#ifndef S_IRGRP
1469# ifdef S_IRUSR
1470# define S_IRGRP (S_IRUSR>>3)
1471# define S_IWGRP (S_IWUSR>>3)
1472# define S_IXGRP (S_IXUSR>>3)
1473# else
1474# define S_IRGRP 0040
1475# define S_IWGRP 0020
1476# define S_IXGRP 0010
1477# endif
1478#endif
1479
1480#ifndef S_IROTH
1481# ifdef S_IRUSR
1482# define S_IROTH (S_IRUSR>>6)
1483# define S_IWOTH (S_IWUSR>>6)
1484# define S_IXOTH (S_IXUSR>>6)
1485# else
1486# define S_IROTH 0040
1487# define S_IWOTH 0020
1488# define S_IXOTH 0010
1489# endif
c623bd54
LW
1490#endif
1491
1492#ifndef S_ISUID
1493# define S_ISUID 04000
1494#endif
1495
1496#ifndef S_ISGID
1497# define S_ISGID 02000
1498#endif
1499
ca6e1c26
JH
1500#ifndef S_IRWXU
1501# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1502#endif
ca6e1c26
JH
1503
1504#ifndef S_IRWXG
1505# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1506#endif
ca6e1c26
JH
1507
1508#ifndef S_IRWXO
1509# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1510#endif
ca6e1c26 1511
b6c36746 1512/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1513 * which would get included through <sys/file.h >, but that is 3000
1514 * lines in the future. --jhi */
1515
b6c36746 1516#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1517# define S_IREAD S_IRUSR
1518#endif
1519
b6c36746 1520#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1521# define S_IWRITE S_IWUSR
1522#endif
1523
1524#ifndef S_IEXEC
1525# define S_IEXEC S_IXUSR
1526#endif
1527
a0d0e21e 1528#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1529# define SLOPPYDIVIDE
1530#endif
1531
748a9306
LW
1532#ifdef UV
1533#undef UV
1534#endif
1535
ce582cee
NC
1536/* For the times when you want the return value of sprintf, and you want it
1537 to be the length. Can't have a thread variable passed in, because C89 has
1538 no varargs macros.
1539*/
1540#ifdef SPRINTF_RETURNS_STRLEN
1541# define my_sprintf sprintf
1542#else
1543# define my_sprintf Perl_my_sprintf
1544#endif
1545
5b692037
JH
1546/*
1547 * If we have v?snprintf() and the C99 variadic macros, we can just
1548 * use just the v?snprintf(). It is nice to try to trap the buffer
1549 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1550 * gcc statement expressions, then use the function wrappers which try
1551 * to trap the overflow. If we can use the gcc statement expressions,
1552 * we can try that even with the version that uses the C99 variadic
1553 * macros.
5b692037
JH
1554 */
1555
1208b3dd
JH
1556/* Note that we do not check against snprintf()/vsnprintf() returning
1557 * negative values because that is non-standard behaviour and we use
1558 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1559 * that should be true only if the snprintf()/vsnprintf() are true
1560 * to the standard. */
1561
e8549682
JH
1562#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
1563
a4eca1d4
JH
1564#ifdef USE_QUADMATH
1565# define my_snprintf Perl_my_snprintf
1566# define PERL_MY_SNPRINTF_GUARDED
1567#else
dfeee9b1 1568#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1569# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1570# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1571# define PERL_MY_SNPRINTF_GUARDED
5b692037 1572# else
e8549682 1573# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1574# endif
1575#else
1576# define my_snprintf Perl_my_snprintf
1208b3dd 1577# define PERL_MY_SNPRINTF_GUARDED
5b692037 1578#endif
a4eca1d4 1579#endif
5b692037 1580
a4eca1d4
JH
1581/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1582 * dies if called under USE_QUADMATH. */
dfeee9b1 1583#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1584# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1585# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1586# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1587# else
e8549682 1588# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1589# endif
1590#else
1591# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1592# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1593#endif
d9fad198 1594
e8549682
JH
1595/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1596 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1597 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1598 * completely ignore it: otherwise you cannot know whether your output
1599 * was too long.)
1600 *
1601 * int len = my_sprintf(buf, max, ...);
1602 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1603 *
1604 * The trick is that in certain platforms [a] the my_sprintf() already
1605 * contains the sanity check, while in certain platforms [b] it needs
1606 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1607 * platforms the POST_GUARD actually does nothing since the check has
1608 * already been done. Watch out for the max being the same in both calls.
1609 *
1610 * If you actually use the snprintf/vsnprintf return value already,
1611 * you assumedly are checking its validity somehow. But you can
1612 * insert the POST_GUARD() also in that case. */
1613
1614#ifndef PERL_MY_SNPRINTF_GUARDED
1615# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1616#else
1617# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1618#endif
1619
1620#ifndef PERL_MY_VSNPRINTF_GUARDED
1621# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1622#else
1623# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1624#endif
1625
a6cc4119
SP
1626#ifdef HAS_STRLCAT
1627# define my_strlcat strlcat
1628#else
1629# define my_strlcat Perl_my_strlcat
1630#endif
1631
1632#ifdef HAS_STRLCPY
1633# define my_strlcpy strlcpy
1634#else
1635# define my_strlcpy Perl_my_strlcpy
1636#endif
1637
05f13f53 1638/*
27d4fb96
PP
1639 The IV type is supposed to be long enough to hold any integral
1640 value or a pointer.
1641 --Andy Dougherty August 1996
1642*/
1643
a22e52b9
JH
1644typedef IVTYPE IV;
1645typedef UVTYPE UV;
8175356b 1646
10cc9d2a 1647#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1648# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1649# define IV_MAX INT64_MAX
1650# define IV_MIN INT64_MIN
1651# define UV_MAX UINT64_MAX
cae7ae48
JH
1652# ifndef UINT64_MIN
1653# define UINT64_MIN 0
1654# endif
5ff3f7a4
GS
1655# define UV_MIN UINT64_MIN
1656# else
1657# define IV_MAX PERL_QUAD_MAX
1658# define IV_MIN PERL_QUAD_MIN
1659# define UV_MAX PERL_UQUAD_MAX
1660# define UV_MIN PERL_UQUAD_MIN
1661# endif
cf2093f6
JH
1662# define IV_IS_QUAD
1663# define UV_IS_QUAD
79072805 1664#else
8175356b 1665# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1666# define IV_MAX INT32_MAX
1667# define IV_MIN INT32_MIN
716026f9
DL
1668# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1669# define UV_MAX UINT32_MAX
1670# else
1671# define UV_MAX 4294967295U
1672# endif
cae7ae48
JH
1673# ifndef UINT32_MIN
1674# define UINT32_MIN 0
1675# endif
5ff3f7a4
GS
1676# define UV_MIN UINT32_MIN
1677# else
1678# define IV_MAX PERL_LONG_MAX
1679# define IV_MIN PERL_LONG_MIN
1680# define UV_MAX PERL_ULONG_MAX
1681# define UV_MIN PERL_ULONG_MIN
1682# endif
8175356b 1683# if IVSIZE == 8
cf2093f6
JH
1684# define IV_IS_QUAD
1685# define UV_IS_QUAD
de1c2614
JH
1686# ifndef HAS_QUAD
1687# define HAS_QUAD
1688# endif
cf2093f6
JH
1689# else
1690# undef IV_IS_QUAD
1691# undef UV_IS_QUAD
9ea40801 1692#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1693/* We think that removing this decade-old undef this will cause too much
1694 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1695 However, we do need HAS_QUAD in the core for use by the drand48 code,
1696 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1697# undef HAS_QUAD
e25d460c 1698#endif
cf2093f6 1699# endif
79072805 1700#endif
d7d93a81 1701
6313e544
JH
1702#define Size_t_MAX (~(Size_t)0)
1703#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1704
cae7ae48 1705#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1706#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1707
28e5dec8 1708#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1709#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1710#endif
1711
d460ef45 1712/*
26bb67e2
JH
1713 * The macros INT2PTR and NUM2PTR are (despite their names)
1714 * bi-directional: they will convert int/float to or from pointers.
1715 * However the conversion to int/float are named explicitly:
1716 * PTR2IV, PTR2UV, PTR2NV.
1717 *
1718 * For int conversions we do not need two casts if pointers are
1719 * the same size as IV and UV. Otherwise we need an explicit
1720 * cast (PTRV) to avoid compiler warnings.
1721 */
56431972
RB
1722#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1723# define PTRV UV
1724# define INT2PTR(any,d) (any)(d)
1725#else
d460ef45 1726# if PTRSIZE == LONGSIZE
56431972 1727# define PTRV unsigned long
e91e3b10 1728# define PTR2ul(p) (unsigned long)(p)
42718184 1729# else
56431972 1730# define PTRV unsigned
42718184 1731# endif
e91e3b10
RB
1732#endif
1733
1734#ifndef INT2PTR
56431972 1735# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1736#endif
e91e3b10
RB
1737
1738#ifndef PTR2ul
1739# define PTR2ul(p) INT2PTR(unsigned long,p)
1740#endif
1741
56431972
RB
1742#define NUM2PTR(any,d) (any)(PTRV)(d)
1743#define PTR2IV(p) INT2PTR(IV,p)
1744#define PTR2UV(p) INT2PTR(UV,p)
1745#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1746#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1747
8141890a
JH
1748/* According to strict ANSI C89 one cannot freely cast between
1749 * data pointers and function (code) pointers. There are at least
1750 * two ways around this. One (used below) is to do two casts,
1751 * first the other pointer to an (unsigned) integer, and then
1752 * the integer to the other pointer. The other way would be
1753 * to use unions to "overlay" the pointers. For an example of
1754 * the latter technique, see union dirpu in struct xpvio in sv.h.
1755 * The only feasible use is probably temporarily storing
1756 * function pointers in a data pointer (such as a void pointer). */
1757
e91e3b10
RB
1758#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1759#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1760
65202027 1761#ifdef USE_LONG_DOUBLE
f3654d06
JH
1762# if LONG_DOUBLESIZE == DOUBLESIZE
1763# define LONG_DOUBLE_EQUALS_DOUBLE
1764# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1765# endif
1766#endif
1767
2d4389e4
JH
1768#ifdef OVR_DBL_DIG
1769/* Use an overridden DBL_DIG */
1770# ifdef DBL_DIG
1771# undef DBL_DIG
1772# endif
1773# define DBL_DIG OVR_DBL_DIG
1774#else
1775/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1776 default value for printing floating point numbers in Gconvert
1777 (see config.h). (It also has other uses, such as figuring out if
1778 a given precision of printing can be done with a double instead of
1779 a long double - Allen).
2d4389e4
JH
1780*/
1781#ifdef I_LIMITS
1782#include <limits.h>
1783#endif
1784#ifdef I_FLOAT
1785#include <float.h>
1786#endif
1787#ifndef HAS_DBL_DIG
1788#define DBL_DIG 15 /* A guess that works lots of places */
1789#endif
1790#endif
1791
1792#ifdef OVR_LDBL_DIG
1793/* Use an overridden LDBL_DIG */
1794# ifdef LDBL_DIG
1795# undef LDBL_DIG
1796# endif
1797# define LDBL_DIG OVR_LDBL_DIG
1798#else
1799/* The following is all to get LDBL_DIG, in order to pick a nice
1800 default value for printing floating point numbers in Gconvert.
1801 (see config.h)
1802*/
68d4903c
JH
1803# ifdef I_LIMITS
1804# include <limits.h>
1805# endif
1806# ifdef I_FLOAT
1807# include <float.h>
1808# endif
1809# ifndef HAS_LDBL_DIG
1810# if LONG_DOUBLESIZE == 10
1811# define LDBL_DIG 18 /* assume IEEE */
1812# else
1813# if LONG_DOUBLESIZE == 12
1814# define LDBL_DIG 18 /* gcc? */
1815# else
1816# if LONG_DOUBLESIZE == 16
1817# define LDBL_DIG 33 /* assume IEEE */
1818# else
1819# if LONG_DOUBLESIZE == DOUBLESIZE
1820# define LDBL_DIG DBL_DIG /* bummer */
1821# endif
1822# endif
1823# endif
1824# endif
1825# endif
2d4389e4
JH
1826#endif
1827
20f6aaab
AS
1828/*
1829 * This is for making sure we have a good DBL_MAX value, if possible,
1830 * either for usage as NV_MAX or for usage in figuring out if we can
1831 * fit a given long double into a double, if bug-fixing makes it
1832 * necessary to do so. - Allen <allens@cpan.org>
1833 */
1834
205f51d8
AS
1835#ifdef I_LIMITS
1836# include <limits.h>
20f6aaab
AS
1837#endif
1838
205f51d8
AS
1839#ifdef I_VALUES
1840# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1841# include <values.h>
1842# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1843# define DBL_MAX MAXDOUBLE
1844# endif
1845# if defined(MINDOUBLE) && !defined(DBL_MIN)
1846# define DBL_MIN MINDOUBLE
1847# endif
1848# endif
1849#endif /* defined(I_VALUES) */
1850
a22e52b9 1851typedef NVTYPE NV;
8175356b 1852
792d8dab
JH
1853#ifdef I_IEEEFP
1854# include <ieeefp.h>
1855#endif
923fc586 1856
c32c3de1
JH
1857#ifdef USING_MSVC6
1858/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1859 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1860# define NAN_COMPARE_BROKEN
1861#endif
1862#if defined(__DECC) && defined(__osf__)
1863/* Also Tru64 cc has broken NaN comparisons. */
1864# define NAN_COMPARE_BROKEN
c32c3de1
JH
1865#endif
1866
65202027 1867#ifdef USE_LONG_DOUBLE
923fc586
JH
1868# ifdef I_SUNMATH
1869# include <sunmath.h>
1870# endif
84e6cb05 1871# if defined(LDBL_DIG)
05b4a618
JH
1872# define NV_DIG LDBL_DIG
1873# ifdef LDBL_MANT_DIG
1874# define NV_MANT_DIG LDBL_MANT_DIG
1875# endif
1876# ifdef LDBL_MIN
1877# define NV_MIN LDBL_MIN
1878# endif
1879# ifdef LDBL_MAX
1880# define NV_MAX LDBL_MAX
1881# endif
1882# ifdef LDBL_MIN_EXP
1883# define NV_MIN_EXP LDBL_MIN_EXP
1884# endif
1885# ifdef LDBL_MAX_EXP
1886# define NV_MAX_EXP LDBL_MAX_EXP
1887# endif
1888# ifdef LDBL_MIN_10_EXP
1889# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1890# endif
1891# ifdef LDBL_MAX_10_EXP
1892# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1893# endif
1894# ifdef LDBL_EPSILON
1895# define NV_EPSILON LDBL_EPSILON
1896# endif
1897# ifdef LDBL_MAX
1898# define NV_MAX LDBL_MAX
20f6aaab 1899/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1900# else
05b4a618
JH
1901# ifdef HUGE_VALL
1902# define NV_MAX HUGE_VALL
f4a14a62
JH
1903# endif
1904# endif
1905# endif
84e6cb05 1906# if defined(HAS_SQRTL)
8a00eddc
JH
1907# define Perl_acos acosl
1908# define Perl_asin asinl
1909# define Perl_atan atanl
940e3d56
JH
1910# define Perl_atan2 atan2l
1911# define Perl_ceil ceill
1912# define Perl_cos cosl
8a00eddc 1913# define Perl_cosh coshl
940e3d56 1914# define Perl_exp expl
55da5e5b 1915/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1916# define Perl_floor floorl
1917# define Perl_fmod fmodl
1918# define Perl_log logl
8a00eddc 1919# define Perl_log10 log10l
940e3d56
JH
1920# define Perl_pow powl
1921# define Perl_sin sinl
8a00eddc 1922# define Perl_sinh sinhl
940e3d56 1923# define Perl_sqrt sqrtl
8a00eddc
JH
1924# define Perl_tan tanl
1925# define Perl_tanh tanhl
68d4903c 1926# endif
a3540c92 1927/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1928# ifndef Perl_modf
1929# ifdef HAS_MODFL
1930# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1931/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1932 prototype in <math.h> */
05b4a618 1933# ifndef HAS_MODFL_PROTO
a221a8a5 1934EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1935# endif
1936# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1937 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1938# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1939# endif
a3540c92 1940# endif
05b4a618
JH
1941# ifndef Perl_frexp
1942# ifdef HAS_FREXPL
1943# define Perl_frexp(x,y) frexpl(x,y)
1944# else
1945# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1946extern long double Perl_my_frexpl(long double x, int *e);
1947# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1948# endif
03476e8e 1949# endif
a3540c92 1950# endif
05b4a618
JH
1951# ifndef Perl_ldexp
1952# ifdef HAS_LDEXPL
1953# define Perl_ldexp(x, y) ldexpl(x,y)
1954# else
1955# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1956# define Perl_ldexp(x,y) scalbnl(x,y)
1957# endif
98181445
JH
1958# endif
1959# endif
38dbb4c5 1960# ifndef Perl_isnan
e4c957f4 1961# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1962# define Perl_isnan(x) isnanl(x)
1963# endif
1964# endif
1965# ifndef Perl_isinf
e4c957f4 1966# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1967# define Perl_isinf(x) isinfl(x)
bcd8bfa9 1968# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1969# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1970# endif
1971# endif
e38461cc
JH
1972# ifndef Perl_isfinite
1973# define Perl_isfinite(x) Perl_isfinitel(x)
1974# endif
84e6cb05
JH
1975#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1976# include <quadmath.h>
1977# define NV_DIG FLT128_DIG
1978# define NV_MANT_DIG FLT128_MANT_DIG
1979# define NV_MIN FLT128_MIN
1980# define NV_MAX FLT128_MAX
1981# define NV_MIN_EXP FLT128_MIN_EXP
1982# define NV_MAX_EXP FLT128_MAX_EXP
1983# define NV_EPSILON FLT128_EPSILON
1984# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1985# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH
1986# define Perl_acos acosq
1987# define Perl_asin asinq
1988# define Perl_atan atanq
1989# define Perl_atan2 atan2q
1990# define Perl_ceil ceilq
1991# define Perl_cos cosq
1992# define Perl_cosh coshq
1993# define Perl_exp expq
1994/* no Perl_fabs, but there's PERL_ABS */
1995# define Perl_floor floorq
1996# define Perl_fmod fmodq
1997# define Perl_log logq
1998# define Perl_log10 log10q
1999# define Perl_pow powq
2000# define Perl_sin sinq
2001# define Perl_sinh sinhq
2002# define Perl_sqrt sqrtq
2003# define Perl_tan tanq
2004# define Perl_tanh tanhq
2005# define Perl_modf(x,y) modfq(x,y)
2006# define Perl_frexp(x,y) frexpq(x,y)
2007# define Perl_ldexp(x, y) ldexpq(x,y)
2008# define Perl_isinf(x) isinfq(x)
2009# define Perl_isnan(x) isnanq(x)
2010# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2011#else
2d4389e4 2012# define NV_DIG DBL_DIG
d6c14000
JH
2013# ifdef DBL_MANT_DIG
2014# define NV_MANT_DIG DBL_MANT_DIG
2015# endif
06fc1729
JH
2016# ifdef DBL_MIN
2017# define NV_MIN DBL_MIN
2018# endif
2019# ifdef DBL_MAX
2020# define NV_MAX DBL_MAX
2021# endif
40bca5ae
JH
2022# ifdef DBL_MIN_EXP
2023# define NV_MIN_EXP DBL_MIN_EXP
2024# endif
2025# ifdef DBL_MAX_EXP
2026# define NV_MAX_EXP DBL_MAX_EXP
2027# endif
06fc1729
JH
2028# ifdef DBL_MIN_10_EXP
2029# define NV_MIN_10_EXP DBL_MIN_10_EXP
2030# endif
2031# ifdef DBL_MAX_10_EXP
2032# define NV_MAX_10_EXP DBL_MAX_10_EXP
2033# endif
2034# ifdef DBL_EPSILON
2035# define NV_EPSILON DBL_EPSILON
2036# endif
205f51d8 2037# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2038# define NV_MAX DBL_MAX
2039# define NV_MIN DBL_MIN
2040# else
2041# ifdef HUGE_VAL
2042# define NV_MAX HUGE_VAL
2043# endif
2044# endif
940e3d56 2045
55da5e5b 2046/* These math interfaces are C89. */
8a00eddc
JH
2047# define Perl_acos acos
2048# define Perl_asin asin
2049# define Perl_atan atan
940e3d56
JH
2050# define Perl_atan2 atan2
2051# define Perl_ceil ceil
2052# define Perl_cos cos
8a00eddc 2053# define Perl_cosh cosh
940e3d56 2054# define Perl_exp exp
55da5e5b 2055/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2056# define Perl_floor floor
2057# define Perl_fmod fmod
2058# define Perl_log log
8a00eddc 2059# define Perl_log10 log10
940e3d56
JH
2060# define Perl_pow pow
2061# define Perl_sin sin
8a00eddc 2062# define Perl_sinh sinh
940e3d56 2063# define Perl_sqrt sqrt
8a00eddc
JH
2064# define Perl_tan tan
2065# define Perl_tanh tanh
940e3d56
JH
2066
2067# define Perl_modf(x,y) modf(x,y)
2068# define Perl_frexp(x,y) frexp(x,y)
2069# define Perl_ldexp(x,y) ldexp(x,y)
2070
1a322af2
JH
2071# ifndef Perl_isnan
2072# ifdef HAS_ISNAN
2073# define Perl_isnan(x) isnan(x)
2074# endif
2075# endif
2076# ifndef Perl_isinf
2077# if defined(HAS_ISINF)
2078# define Perl_isinf(x) isinf(x)
bcd8bfa9 2079# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2080# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2081# endif
2082# endif
2083# ifndef Perl_isfinite
2084# ifdef HAS_ISFINITE
2085# define Perl_isfinite(x) isfinite(x)
2086# elif defined(HAS_FINITE)
2087# define Perl_isfinite(x) finite(x)
2088# endif
2089# endif
758a5d79
JH
2090#endif
2091
30404d48
JH
2092/* fpclassify(): C99. It is supposed to be a macro that switches on
2093* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2094#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2095# include <math.h>
25c46df8
JH
2096# if defined(FP_INFINITE) && defined(FP_NAN)
2097# define Perl_fp_class(x) fpclassify(x)
2098# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2099# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2100# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2101# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2102# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2103# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2104/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2105 * actually not the C99 fpclassify, with its own set of return defines. */
2106# define Perl_fp_class(x) fpclassify(x)
2107# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2108# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2109# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2110# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2111# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2112# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2113# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2114# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2115# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2116# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2117# else
2118# undef Perl_fp_class /* Unknown set of defines */
2119# endif
30404d48
JH
2120#endif
2121
25c46df8
JH
2122/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2123 * are identical to the C99 fpclassify(). */
2124#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2125# include <math.h>
558f3e66
CB
2126# ifdef __VMS
2127 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2128# include <fp.h>
56610b8f
CB
2129 /* oh, and the isnormal macro has a typo in it! */
2130# undef isnormal
2131# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2132# endif
25c46df8
JH
2133# if defined(FP_INFINITE) && defined(FP_NAN)
2134# define Perl_fp_class(x) fp_classify(x)
2135# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2136# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2137# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2138# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2139# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2140# else
2141# undef Perl_fp_class /* Unknown set of defines */
2142# endif
f279e099 2143#endif
205f51d8 2144
30404d48
JH
2145/* Feel free to check with me for the SGI manpages, SGI testing,
2146 * etcetera, if you want to try getting this to work with IRIX.
2147 *
2148 * - Allen <allens@cpan.org> */
2149
2150/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2151#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2152/* Solaris and IRIX have fpclass/fpclassl, but they are using
2153 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2154 * Define some symbols also as cpp symbols so we can detect them. */
2155# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2156# define FP_PINF FP_PINF
2157# define FP_QNAN FP_QNAN
2158# endif
f279e099 2159# include <math.h>
758a5d79
JH
2160# ifdef I_IEEFP
2161# include <ieeefp.h>
2162# endif
2163# ifdef I_FP
2164# include <fp.h>
2165# endif
2166# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2167# define Perl_fp_class(x) fpclassl(x)
758a5d79 2168# else
f279e099
JH
2169# define Perl_fp_class(x) fpclass(x)
2170# endif
25c46df8 2171# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2172# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2173# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2174# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2175# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2176# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2177# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2178# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2179# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2180# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2181# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2182# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2183# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2184# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2185# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2186# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2187# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2188# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2189# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2190# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2191# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2192# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2193# else
2194# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2195# endif
758a5d79
JH
2196#endif
2197
30404d48
JH
2198/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2199#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2200# include <math.h>
2201# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2202# include <fp_class.h>
2203# endif
25c46df8
JH
2204# if defined(FP_POS_INF) && defined(FP_QNAN)
2205# ifdef __irix__ /* XXX Configure test instead */
2206# ifdef USE_LONG_DOUBLE
2207# define Perl_fp_class(x) fp_class_l(x)
2208# else
2209# define Perl_fp_class(x) fp_class_d(x)
2210# endif
f279e099 2211# else
25c46df8
JH
2212# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2213# define Perl_fp_class(x) fp_classl(x)
2214# else
2215# define Perl_fp_class(x) fp_class(x)
2216# endif
f279e099 2217# endif
25c46df8
JH
2218# if defined(FP_POS_INF) && defined(FP_QNAN)
2219# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2220# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2221# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2222# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2223# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2224# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2225# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2226# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2227# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2228# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2229# else
25c46df8 2230# undef Perl_fp_class /* Unknown set of defines */
30404d48 2231# endif
f279e099 2232# endif
30404d48
JH
2233#endif
2234
052758ae 2235/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2236#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2237# include <math.h>
25c46df8
JH
2238# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2239# ifndef _cplusplus
2240# define Perl_fp_class(x) class(x)
2241# else
2242# define Perl_fp_class(x) _class(x)
2243# endif
2244# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2245# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2246# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2247# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2248# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2249# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2250# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2251# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2252# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2253# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2254# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2255# else
2256# undef Perl_fp_class /* Unknown set of defines */
2257# endif
758a5d79 2258# endif
30404d48
JH
2259#endif
2260
2261/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2262#ifdef WIN32
2263# ifndef Perl_isnan
2264# define Perl_isnan(x) _isnan(x)
2265# endif
2266# ifndef Perl_isfinite
2267# define Perl_isfinite(x) _finite(x)
2268# endif
2269# ifndef Perl_fp_class_snan
25c46df8
JH
2270/* No simple way to #define Perl_fp_class because _fpclass()
2271 * returns a set of bits. */
796ea9ea
JH
2272# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2273# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2274# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2275# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2276# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2277# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2278# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2279# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2280# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2281# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2282# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2283# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2284# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2285# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2286# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2287# endif
f279e099
JH
2288#endif
2289
2290#if !defined(Perl_fp_class_inf) && \
2291 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2292# define Perl_fp_class_inf(x) \
2293 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2294#endif
2295
2296#if !defined(Perl_fp_class_nan) && \
2297 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2298# define Perl_fp_class_nan(x) \
2299 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2300#endif
2301
2302#if !defined(Perl_fp_class_zero) && \
2303 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2304# define Perl_fp_class_zero(x) \
2305 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2306#endif
2307
2308#if !defined(Perl_fp_class_norm) && \
2309 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2310# define Perl_fp_class_norm(x) \
2311 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2312#endif
2313
2314#if !defined(Perl_fp_class_denorm) && \
2315 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2316# define Perl_fp_class_denorm(x) \
2317 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2318#endif
758a5d79 2319
1a322af2
JH
2320#ifdef UNDER_CE
2321int isnan(double d);
2322#endif
2323
758a5d79 2324#ifndef Perl_isnan
1a322af2
JH
2325# ifdef Perl_fp_class_nan
2326# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2327# else
1a322af2
JH
2328# ifdef HAS_UNORDERED
2329# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2330# else
1a322af2 2331# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2332# endif
2333# endif
2334#endif
2335
1a322af2
JH
2336#ifndef Perl_isinf
2337# ifdef Perl_fp_class_inf
2338# define Perl_isinf(x) Perl_fp_class_inf(x)
2339# endif
ca6c63e1
JH
2340#endif
2341
758a5d79 2342#ifndef Perl_isfinite
25c46df8 2343# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2344# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2345# elif defined(HAS_FINITE)
c496ca58 2346# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2347# elif defined(Perl_fp_class_finite)
2348# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2349# else
c496ca58
JH
2350/* For the infinities the multiplication returns nan,
2351 * for the nan the multiplication also returns nan,
2352 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2353# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2354# endif
65202027
DS
2355#endif
2356
25c46df8
JH
2357#ifndef Perl_isinf
2358# if defined(Perl_isfinite) && defined(Perl_isnan)
2359# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2360# endif
2361#endif
2362
d3685250
JH
2363/* We need Perl_isfinitel (ends with ell) (if available) even when
2364 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2365 * needs that. */
2366#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2367/* If isfinite() is a macro and looks like we have C99,
2368 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2369# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2370# define Perl_isfinitel(x) isfinite(x)
2371# elif defined(HAS_ISFINITEL)
2372# define Perl_isfinitel(x) isfinitel(x)
2373# elif defined(HAS_FINITEL)
2374# define Perl_isfinitel(x) finitel(x)
2375# elif defined(HAS_INFL) && defined(HAS_NANL)
2376# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2377# else
99bf9e32 2378# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2379# endif
2380#endif
2381
a36244b7
JH
2382/* The default is to use Perl's own atof() implementation (in numeric.c).
2383 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2384 * it is however best to use the native implementation of atof.
2385 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2386 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2387 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2388 * you may need to be using a different function than atof! */
a36244b7
JH
2389
2390#ifndef USE_PERL_ATOF
2391# ifndef _UNICOS
2392# define USE_PERL_ATOF
2393# endif
2394#else
2395# if USE_PERL_ATOF == 0
2396# undef USE_PERL_ATOF
2397# endif
2398#endif
2399
2400#ifdef USE_PERL_ATOF
2401# define Perl_atof(s) Perl_my_atof(s)
2402# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2403#else
2404# define Perl_atof(s) (NV)atof(s)
2405# define Perl_atof2(s, n) ((n) = atof(s))
2406#endif
cf2093f6 2407
d460ef45 2408/* Previously these definitions used hardcoded figures.
760ac839
LW
2409 * It is hoped these formula are more portable, although
2410 * no data one way or another is presently known to me.
2411 * The "PERL_" names are used because these calculated constants
2412 * do not meet the ANSI requirements for LONG_MAX, etc., which
2413 * need to be constants acceptable to #if - kja
2414 * define PERL_LONG_MAX 2147483647L
2415 * define PERL_LONG_MIN (-LONG_MAX - 1)
2416 * define PERL ULONG_MAX 4294967295L
2417 */
2418
2419#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2420# include <limits.h>
760ac839 2421#endif
205f51d8 2422/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2423 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2424
99abf803
PP
2425/*
2426 * Try to figure out max and min values for the integral types. THE CORRECT
2427 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2428 * following hacks are used if neither limits.h or values.h provide them:
2429 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2430 * for types < int: (unsigned TYPE)~(unsigned)0
2431 * The argument to ~ must be unsigned so that later signed->unsigned
2432 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2433 * and it must not be smaller than int because ~ does integral promotion.
2434 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2435 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2436 * The latter is a hack which happens to work on some machines but
2437 * does *not* catch any random system, or things like integer types
2438 * with NaN if that is possible.
2439 *
2440 * All of the types are explicitly cast to prevent accidental loss of
2441 * numeric range, and in the hope that they will be less likely to confuse
2442 * over-eager optimizers.
2443 *
2444 */
27d4fb96 2445
99abf803
PP
2446#define PERL_UCHAR_MIN ((unsigned char)0)
2447
2448#ifdef UCHAR_MAX
2449# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2450#else
99abf803
PP
2451# ifdef MAXUCHAR
2452# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2453# else
99abf803 2454# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2455# endif
2456#endif
d460ef45 2457
99abf803
PP
2458/*
2459 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2460 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2461 * depending on local options. Until Configure detects this (or at least
2462 * detects whether the "signed" keyword is available) the CHAR ranges
2463 * will not be included. UCHAR functions normally.
2464 * - kja
2465 */
27d4fb96 2466
99abf803
PP
2467#define PERL_USHORT_MIN ((unsigned short)0)
2468
2469#ifdef USHORT_MAX
2470# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2471#else
99abf803
PP
2472# ifdef MAXUSHORT
2473# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2474# else
ef2f54b0
CB
2475# ifdef USHRT_MAX
2476# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2477# else
2478# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2479# endif
27d4fb96
PP
2480# endif
2481#endif
2482
27d4fb96 2483#ifdef SHORT_MAX
99abf803 2484# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2485#else
2486# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2487# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2488# else
ef2f54b0
CB
2489# ifdef SHRT_MAX
2490# define PERL_SHORT_MAX ((short)SHRT_MAX)
2491# else
2492# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2493# endif
27d4fb96
PP
2494# endif
2495#endif
2496
2497#ifdef SHORT_MIN
99abf803 2498# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2499#else
2500# ifdef MINSHORT
99abf803 2501# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2502# else
ef2f54b0
CB
2503# ifdef SHRT_MIN
2504# define PERL_SHORT_MIN ((short)SHRT_MIN)
2505# else
2506# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2507# endif
27d4fb96
PP
2508# endif
2509#endif
2510
99abf803
PP
2511#ifdef UINT_MAX
2512# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2513#else
99abf803
PP
2514# ifdef MAXUINT
2515# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2516# else
99abf803 2517# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2518# endif
2519#endif
2520
99abf803 2521#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2522
2523#ifdef INT_MAX
99abf803 2524# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2525#else
2526# ifdef MAXINT /* Often used in <values.h> */
99abf803 2527# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2528# else
99abf803 2529# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2530# endif
2531#endif
2532
2533#ifdef INT_MIN
99abf803 2534# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2535#else
2536# ifdef MININT
99abf803 2537# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2538# else
2539# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2540# endif
2541#endif
2542
99abf803
PP
2543#ifdef ULONG_MAX
2544# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2545#else
99abf803
PP
2546# ifdef MAXULONG
2547# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2548# else
99abf803 2549# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2550# endif
2551#endif
2552
99abf803 2553#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2554
760ac839 2555#ifdef LONG_MAX
99abf803 2556# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2557#else
2558# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2559# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2560# else
99abf803 2561# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2562# endif
2563#endif
2564
2565#ifdef LONG_MIN
99abf803 2566# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2567#else
2568# ifdef MINLONG
99abf803 2569# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2570# else
27d4fb96 2571# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2572# endif
2573#endif
2574
d7d93a81 2575#ifdef UV_IS_QUAD
99abf803 2576
99abf803 2577# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2578# define PERL_UQUAD_MIN ((UV)0)
99abf803 2579# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2580# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2581
79072805
LW
2582#endif
2583
ee0007ab 2584typedef MEM_SIZE STRLEN;
450a55e4 2585
79072805
LW
2586typedef struct op OP;
2587typedef struct cop COP;
2588typedef struct unop UNOP;
2f7c6295 2589typedef struct unop_aux UNOP_AUX;
79072805
LW
2590typedef struct binop BINOP;
2591typedef struct listop LISTOP;
2592typedef struct logop LOGOP;
79072805
LW
2593typedef struct pmop PMOP;
2594typedef struct svop SVOP;
7934575e 2595typedef struct padop PADOP;
79072805 2596typedef struct pvop PVOP;
79072805 2597typedef struct loop LOOP;
b46e009d 2598typedef struct methop METHOP;
79072805 2599
7aef8e5b 2600#ifdef PERL_CORE
8be227ab
FC
2601typedef struct opslab OPSLAB;
2602typedef struct opslot OPSLOT;
2603#endif
2604
52db365a 2605typedef struct block_hooks BHK;
1830b3d9 2606typedef struct custom_op XOP;
52db365a 2607
cd1541b2
NC
2608typedef struct interpreter PerlInterpreter;
2609
d2b3f365 2610/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2611#if defined(__sgi)
d2b3f365 2612# define STRUCT_SV perl_sv
b8d3c5db
JH
2613#else
2614# define STRUCT_SV sv
2615#endif
2616typedef struct STRUCT_SV SV;
79072805
LW
2617typedef struct av AV;
2618typedef struct hv HV;
2619typedef struct cv CV;
d2f13c59 2620typedef struct p5rx REGEXP;
79072805 2621typedef struct gp GP;
0c30d9ec 2622typedef struct gv GV;
8990e307 2623typedef struct io IO;
c09156bb 2624typedef struct context PERL_CONTEXT;
79072805
LW
2625typedef struct block BLOCK;
2626
2627typedef struct magic MAGIC;
2628typedef struct xpv XPV;
2629typedef struct xpviv XPVIV;
ff68c719 2630typedef struct xpvuv XPVUV;
79072805
LW
2631typedef struct xpvnv XPVNV;
2632typedef struct xpvmg XPVMG;
2633typedef struct xpvlv XPVLV;
d361b004 2634typedef struct xpvinvlist XINVLIST;
79072805
LW
2635typedef struct xpvav XPVAV;
2636typedef struct xpvhv XPVHV;
2637typedef struct xpvgv XPVGV;
2638typedef struct xpvcv XPVCV;
2639typedef struct xpvbm XPVBM;
2640typedef struct xpvfm XPVFM;
8990e307 2641typedef struct xpvio XPVIO;
79072805
LW
2642typedef struct mgvtbl MGVTBL;
2643typedef union any ANY;
5f7fde29
GS
2644typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2645typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2646typedef struct clone_params CLONE_PARAMS;
2647
0f94cb1f 2648/* a pad is currently just an AV; but that might change,
7261499d
FC
2649 * so hide the type. */
2650typedef struct padlist PADLIST;
67634234 2651typedef AV PAD;
9b7476d7 2652typedef struct padnamelist PADNAMELIST;
0f94cb1f 2653typedef struct padname PADNAME;
67634234 2654
93c10d60
FC
2655/* enable PERL_COPY_ON_WRITE by default */
2656#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2657# define PERL_COPY_ON_WRITE
13b0f67d 2658#endif
07d01d6e 2659
93c10d60 2660#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2661# define PERL_ANY_COW
9f351b45
DM
2662#else
2663# define PERL_SAWAMPERSAND
db2c6cb3
FC
2664#endif
2665
40653c20
FC
2666#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2667# error PERL_DEBUG_READONLY_OPS only works with ithreads
2668#endif
2669
378cc40b 2670#include "handy.h"
64935bc6 2671#include "charclass_invlists.h"
a0d0e21e 2672
6b8eaf93 2673#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2674# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2675# define USE_64_BIT_RAWIO /* implicit */
2676# endif
4564133c
JH
2677#endif
2678
6b8eaf93
JH
2679/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2680 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2681 * however, because operating systems like to do that themself. */
2682#ifndef FSEEKSIZE
2683# ifdef HAS_FSEEKO
2684# define FSEEKSIZE LSEEKSIZE
2685# else
2686# define FSEEKSIZE LONGSIZE
d460ef45 2687# endif
6b8eaf93
JH
2688#endif
2689
2690#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2691# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2692# define USE_64_BIT_STDIO /* implicit */
2693# endif
2694#endif
4564133c 2695
09458382 2696#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2697# ifdef HAS_OFF64_T
2698# undef Off_t
2699# define Off_t off64_t
2700# undef LSEEKSIZE
2701# define LSEEKSIZE 8
5ff3f7a4 2702# endif
d9b3e12d
JH
2703/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2704 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2705 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2706# if defined(USE_OPEN64)
2707# define open open64
5ff3f7a4 2708# endif
d9b3e12d
JH
2709# if defined(USE_LSEEK64)
2710# define lseek lseek64
6b8eaf93
JH
2711# else
2712# if defined(USE_LLSEEK)
2713# define lseek llseek
2714# endif
d9b3e12d
JH
2715# endif
2716# if defined(USE_STAT64)
2717# define stat stat64
2718# endif
2719# if defined(USE_FSTAT64)
2720# define fstat fstat64
2721# endif
2722# if defined(USE_LSTAT64)
2723# define lstat lstat64
2724# endif
2725# if defined(USE_FLOCK64)
2726# define flock flock64
2727# endif
2728# if defined(USE_LOCKF64)
2729# define lockf lockf64
2730# endif
2731# if defined(USE_FCNTL64)
2732# define fcntl fcntl64
2733# endif
2734# if defined(USE_TRUNCATE64)
2735# define truncate truncate64
2736# endif
2737# if defined(USE_FTRUNCATE64)
2738# define ftruncate ftruncate64
2739# endif
2740#endif
2741
2742#ifdef USE_64_BIT_STDIO
2743# ifdef HAS_FPOS64_T
2744# undef Fpos_t
2745# define Fpos_t fpos64_t
2746# endif
2747/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2748 * will trigger defines like the ones below. Some 64-bit environments,
2749 * however, do not. */
2750# if defined(USE_FOPEN64)
2751# define fopen fopen64
2752# endif
2753# if defined(USE_FSEEK64)
6b8eaf93 2754# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2755# endif
2756# if defined(USE_FTELL64)
6b8eaf93 2757# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2758# endif
2759# if defined(USE_FSETPOS64)
2760# define fsetpos fsetpos64
2761# endif
2762# if defined(USE_FGETPOS64)
2763# define fgetpos fgetpos64
2764# endif
2765# if defined(USE_TMPFILE64)
2766# define tmpfile tmpfile64
2767# endif
2768# if defined(USE_FREOPEN64)
2769# define freopen freopen64
5ff3f7a4
GS
2770# endif
2771#endif
2772
e37778c2 2773#if defined(OS2)
2c2d71f5
JH
2774# include "iperlsys.h"
2775#endif
2776
748a9306 2777#ifdef DOSISH
19848b3f
JH
2778# if defined(OS2)
2779# include "os2ish.h"
2780# else
2781# include "dosish.h"
2782# endif
009819bb 2783#elif defined(VMS)
748a9306 2784# include "vmsish.h"
009819bb 2785#elif defined(PLAN9)
19848b3f 2786# include "./plan9/plan9ish.h"
009819bb 2787#elif defined(__VOS__)
196918b0
PG
2788# ifdef __GNUC__
2789# include "./vos/vosish.h"
2790# else
2791# include "vos/vosish.h"
2792# endif
009819bb 2793#elif defined(__SYMBIAN32__)
27da23d5 2794# include "symbian/symbianish.h"
009819bb 2795#elif defined(__HAIKU__)
df00ff3b 2796# include "haiku/haikuish.h"
009819bb 2797#else
19848b3f 2798# include "unixish.h"
13b6e58c
JH
2799#endif
2800
3c0208ad
AB
2801#if defined(__amigaos4__)
2802# include "amigaos.h"
2803# undef FD_CLOEXEC /* a lie in AmigaOS */
2804#endif
2805
2946a158
JH
2806/* NSIG logic from Configure --> */
2807/* Strange style to avoid deeply-nested #if/#else/#endif */
2808#ifndef NSIG
2809# ifdef _NSIG
2810# define NSIG (_NSIG)
2811# endif
2812#endif
2813
2814#ifndef NSIG
2815# ifdef SIGMAX
2816# define NSIG (SIGMAX+1)
2817# endif
2818#endif
2819
2820#ifndef NSIG
2821# ifdef SIG_MAX
2822# define NSIG (SIG_MAX+1)
2823# endif
2824#endif
2825
2826#ifndef NSIG
2827# ifdef _SIG_MAX
2828# define NSIG (_SIG_MAX+1)
2829# endif
2830#endif
2831
2832#ifndef NSIG
2833# ifdef MAXSIG
2834# define NSIG (MAXSIG+1)
2835# endif
2836#endif
2837
2838#ifndef NSIG
2839# ifdef MAX_SIG
2840# define NSIG (MAX_SIG+1)
2841# endif
2842#endif
2843
2844#ifndef NSIG
2845# ifdef SIGARRAYSIZE
2846# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2847# endif
2848#endif
2849
2850#ifndef NSIG
2851# ifdef _sys_nsig
2852# define NSIG (_sys_nsig) /* Solaris 2.5 */
2853# endif
2854#endif
2855
2856/* Default to some arbitrary number that's big enough to get most
2857 of the common signals.
2858*/
2859#ifndef NSIG
2860# define NSIG 50
2861#endif
2862/* <-- NSIG logic from Configure */
2863
13b6e58c
JH
2864#ifndef NO_ENVIRON_ARRAY
2865# define USE_ENVIRON_ARRAY
2866#endif
32f822de 2867
c77b533b
JH
2868/*
2869 * initialise to avoid floating-point exceptions from overflow, etc
2870 */
2871#ifndef PERL_FPU_INIT
2872# ifdef HAS_FPSETMASK
2873# if HAS_FLOATINGPOINT_H
2874# include <floatingpoint.h>
2875# endif
ad3a8c67
NC
2876/* Some operating systems have this as a macro, which in turn expands to a comma
2877 expression, and the last sub-expression is something that gets calculated,
2878 and then they have the gall to warn that a value computed is not used. Hence
2879 cast to void. */
2880# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2881# else
2f42fcb0 2882# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2883# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2884# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2885# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2886# else
2887# define PERL_FPU_INIT
2f42fcb0 2888
7014c407 2889# endif
c77b533b
JH
2890# endif
2891#endif
b35112e7
CS
2892#ifndef PERL_FPU_PRE_EXEC
2893# define PERL_FPU_PRE_EXEC {
2894# define PERL_FPU_POST_EXEC }
2895#endif
c77b533b 2896
a308b05a
JH
2897/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2898 * We need to reenable the "invalid" trap because otherwise generation
2899 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2900 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2901#ifdef __osf__
2902# include <machine/fpu.h>
2903# define PERL_SYS_FPU_INIT \
2904 STMT_START { \
2905 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2906 signal(SIGFPE, SIG_IGN); \
2907 } STMT_END
2908#endif
94a08944
JH
2909/* In IRIX the default for Flush to Zero bit is true,
2910 * which means that results going below the minimum of normal
2911 * floating points go to zero, instead of going denormal/subnormal.
2912 * This is unlike almost any other system running Perl, so let's clear it.
2913 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2914 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2915 *
2916 * XXX The flush-to-zero behaviour should be a Configure scan.
2917 * To change the behaviour usually requires some system-specific
2918 * incantation, though, like the below. */
2919#ifdef __sgi
2920# include <sys/fpu.h>
2921# define PERL_SYS_FPU_INIT \
2922 STMT_START { \
2923 union fpc_csr csr; \
2924 csr.fc_word = get_fpc_csr(); \
2925 csr.fc_struct.flush = 0; \
2926 set_fpc_csr(csr.fc_word); \
2927 } STMT_END
2928#endif
a308b05a
JH
2929
2930#ifndef PERL_SYS_FPU_INIT
2931# define PERL_SYS_FPU_INIT NOOP
2932#endif
2933
cbec8ebe
DM
2934#ifndef PERL_SYS_INIT3_BODY
2935# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2936#endif
2937
eb533572 2938/*
dcccc8ff
KW
2939=head1 Miscellaneous Functions
2940
4ad9e498 2941=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2942Provides system-specific tune up of the C runtime environment necessary to
72d33970 2943run Perl interpreters. This should be called only once, before creating
eb533572
DM
2944any Perl interpreters.
2945
4ad9e498 2946=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2947Provides system-specific tune up of the C runtime environment necessary to
72d33970 2948run Perl interpreters. This should be called only once, before creating
eb533572
DM
2949any Perl interpreters.
2950
2951=for apidoc Am|void|PERL_SYS_TERM|
2952Provides system-specific clean up of the C runtime environment after
72d33970 2953running Perl interpreters. This should be called only once, after
eb533572
DM
2954freeing any remaining Perl interpreters.
2955
2956=cut
2957 */
2958
cbec8ebe
DM
2959#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2960#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2961#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2962
be708cc0
JH
2963#ifndef PERL_WRITE_MSG_TO_CONSOLE
2964# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2965#endif
2966
0f31cffe
GS
2967#ifndef MAXPATHLEN
2968# ifdef PATH_MAX
b990c8b2
JH
2969# ifdef _POSIX_PATH_MAX
2970# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2971/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2972 * included the null byte or not. Later amendments of POSIX,
2973 * XPG4, the Austin Group, and the Single UNIX Specification
2974 * all explicitly include the null byte in the PATH_MAX.
2975 * Ditto for _POSIX_PATH_MAX. */
2976# define MAXPATHLEN PATH_MAX
b990c8b2 2977# else
09448d78 2978# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2979# endif
2980# else
2981# define MAXPATHLEN (PATH_MAX+1)
2982# endif
0f31cffe 2983# else
d552bce8 2984# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2985# endif
2986#endif
2987
c80263a8
SH
2988/* In case Configure was not used (we are using a "canned config"
2989 * such as Win32, or a cross-compilation setup, for example) try going
2990 * by the gcc major and minor versions. One useful URL is
2991 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2992 * but contrary to this information warn_unused_result seems
2993 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2994 * Also, when building extensions with an installed perl, this allows
2995 * the user to upgrade gcc and get the right attributes, rather than
2996 * relying on the list generated at Configure time. --AD
c80263a8
SH
2997 * Set these up now otherwise we get confused when some of the <*thread.h>
2998 * includes below indirectly pull in <perlio.h> (which needs to know if we
2999 * have HASATTRIBUTE_FORMAT).
3000 */
3001
4d7c7898 3002#ifndef PERL_MICRO
fc2007d4 3003#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
3004# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
3005# define HASATTRIBUTE_DEPRECATED
3006# endif
c80263a8
SH
3007# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
3008# define HASATTRIBUTE_FORMAT
63cdf24b
SH
3009# if defined __MINGW32__
3010# define PRINTF_FORMAT_NULL_OK
3011# endif
c80263a8
SH
3012# endif
3013# if __GNUC__ >= 3 /* 3.0 -> */
3014# define HASATTRIBUTE_MALLOC
3015# endif
3016# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3017# define HASATTRIBUTE_NONNULL
3018# endif
3019# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3020# define HASATTRIBUTE_NORETURN
3021# endif
3022# if __GNUC__ >= 3 /* gcc 3.0 -> */
3023# define HASATTRIBUTE_PURE
3024# endif
42bf5550 3025# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
3026# define HASATTRIBUTE_UNUSED
3027# endif
d324fe49
AD
3028# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3029# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3030# endif
c80263a8
SH
3031# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3032# define HASATTRIBUTE_WARN_UNUSED_RESULT
3033# endif
3034#endif
00f254e2 3035#endif /* #ifndef PERL_MICRO */
c80263a8 3036
3db8f154 3037/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3038 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
3039 * this results in many functions being undeclared which bothers C++
3040 * May make sense to have threads after "*ish.h" anyway
3041 */
3042
3db8f154 3043#if defined(USE_ITHREADS)
2986a63f
JH
3044# ifdef NETWARE
3045# include <nw5thread.h>
3046# else
32f822de
GS
3047# ifdef WIN32
3048# include <win32thread.h>
3049# else
dd96f567
IZ
3050# ifdef OS2
3051# include "os2thread.h"
3052# else
7f3d1cf1 3053# ifdef I_MACH_CTHREADS
bdd66968 3054# include <mach/cthreads.h>
7f3d1cf1
BH
3055typedef cthread_t perl_os_thread;
3056typedef mutex_t perl_mutex;
3057typedef condition_t perl_cond;
3058typedef void * perl_key;
3059# else /* Posix threads */
1f5ae88c
JH
3060# ifdef I_PTHREAD
3061# include <pthread.h>
3062# endif
7f3d1cf1
BH
3063typedef pthread_t perl_os_thread;
3064typedef pthread_mutex_t perl_mutex;
3065typedef pthread_cond_t perl_cond;
3066typedef pthread_key_t perl_key;
3067# endif /* I_MACH_CTHREADS */
dd96f567 3068# endif /* OS2 */
32f822de 3069# endif /* WIN32 */
ef4abe76 3070# endif /* NETWARE */
3db8f154 3071#endif /* USE_ITHREADS */
c5be433b 3072
66a93824 3073#if defined(WIN32)
1feb2720 3074# include "win32.h"
c5be433b
GS
3075#endif
3076
2986a63f
JH
3077#ifdef NETWARE
3078# include "netware.h"
3079#endif
3080
e5218da5 3081#define STATUS_UNIX PL_statusvalue
68dc0745 3082#ifdef VMS
6b88bc9c 3083# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3084/*
3085 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3086 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3087 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3088 * be updated also.
3089 */
3090# include <stsdef.h>
3091# include <ssdef.h>
3092/* Presume this because if VMS changes it, it will require a new
3093 * set of APIs for waiting on children for binary compatibility.
3094 */
3095# define child_offset_bits (8)
3096# ifndef C_FAC_POSIX
3097# define C_FAC_POSIX 0x35A000
3098# endif
3099
3100/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3101 * platform from the existing UNIX or Native status values.
3102 */
3103
37038d91 3104# define STATUS_EXIT \
7a7fd8e0
JM
3105 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3106 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3107
7a7fd8e0 3108
fb38d079
JM
3109/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3110 * exit code and shifts the UNIX value over the correct number of bits to
3111 * be a child status. Usually the number of bits is 8, but that could be
3112 * platform dependent. The NATIVE status code is presumed to have either
3113 * from a child process.
7a7fd8e0
JM
3114 */
3115
fb38d079
JM
3116/* This is complicated. The child processes return a true native VMS
3117 status which must be saved. But there is an assumption in Perl that
3118 the UNIX child status has some relationship to errno values, so
00f254e2 3119 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3120 In order to get the string translation correct, for the error, errno
3121 must be EVMSERR, but that generates a different text message
3122 than what the test programs are expecting. So an errno value must
3123 be derived from the native status value when an error occurs.
3124 That will hide the true native status message. With this version of
3125 perl, the true native child status can always be retrieved so that
3126 is not a problem. But in this case, Pl_statusvalue and errno may
3127 have different values in them.
3128 */
7a7fd8e0 3129
fb38d079 3130# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3131 STMT_START { \
2fbb330f
JM
3132 I32 evalue = (I32)n; \
3133 if (evalue == EVMSERR) { \
3134 PL_statusvalue_vms = vaxc$errno; \
3135 PL_statusvalue = evalue; \
7a7fd8e0 3136 } else { \
2fbb330f 3137 PL_statusvalue_vms = evalue; \
fb38d079 3138 if (evalue == -1) { \
3280af22 3139 PL_statusvalue = -1; \
7a7fd8e0
JM
3140 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3141 } else \
fb38d079 3142 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3143 set_vaxc_errno(evalue); \
fb38d079
JM
3144 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3145 set_errno(EVMSERR); \
3146 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3147 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3148 } \
68dc0745 3149 } STMT_END
7a7fd8e0 3150
68dc0745 3151# ifdef VMSISH_STATUS
e5218da5 3152# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3153# else
e5218da5 3154# define STATUS_CURRENT STATUS_UNIX
68dc0745 3155# endif
7a7fd8e0
JM
3156
3157 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3158 * the NATIVE status to an equivalent value. Can not be used to translate
3159 * exit code values as exit code values are not guaranteed to have any
3160 * relationship at all to errno values.
3161 * This is used when Perl is forcing errno to have a specific value.
3162 */
e5218da5 3163# define STATUS_UNIX_SET(n) \
68dc0745 3164 STMT_START { \
7a7fd8e0 3165 I32 evalue = (I32)n; \
0968cdad 3166 PL_statusvalue = evalue; \
3280af22 3167 if (PL_statusvalue != -1) { \
0968cdad
JM
3168 if (PL_statusvalue != EVMSERR) { \
3169 PL_statusvalue &= 0xFFFF; \
3170 if (MY_POSIX_EXIT) \
3171 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3172 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3173 } \
3174 else { \
3175 PL_statusvalue_vms = vaxc$errno; \
3176 } \
68dc0745 3177 } \
0968cdad
JM
3178 else PL_statusvalue_vms = SS$_ABORT; \
3179 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3180 } STMT_END
3181
3182 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3183 * the NATIVE error status based on it.
3184 *
3185 * When in the default mode to comply with the Perl VMS documentation,
3186 * 0 is a success and any other code sets the NATIVE status to a failure
3187 * code of SS$_ABORT.
fb38d079
JM
3188 *
3189 * In the new POSIX EXIT mode, native status will be set so that the
3190 * actual exit code will can be retrieved by the calling program or
3191 * shell.
3192 *
3193 * If the exit code is not clearly a UNIX parent or child exit status,
3194 * it will be passed through as a VMS status.
7a7fd8e0
JM
3195 */
3196
fb38d079 3197# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3198 STMT_START { \
3199 I32 evalue = (I32)n; \
3200 PL_statusvalue = evalue; \
e08e1e1d
JM
3201 if (MY_POSIX_EXIT) { \
3202 if (evalue <= 0xFF00) { \
3203 if (evalue > 0xFF) \
3204 evalue = (evalue >> child_offset_bits) & 0xFF; \
3205 PL_statusvalue_vms = \
3206 (C_FAC_POSIX | (evalue << 3 ) | \
3207 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3208 } else /* forgive them Perl, for they have sinned */ \
3209 PL_statusvalue_vms = evalue; \
3210 } else { \
3211 if (evalue == 0) \
3212 PL_statusvalue_vms = SS$_NORMAL; \
3213 else if (evalue <= 0xFF00) \
3214 PL_statusvalue_vms = SS$_ABORT; \
3215 else { /* forgive them Perl, for they have sinned */ \
3216 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3217 else PL_statusvalue_vms = vaxc$errno; \
3218 /* And obviously used a VMS status value instead of UNIX */ \
3219 PL_statusvalue = EVMSERR; \
3220 } \
3221 set_vaxc_errno(PL_statusvalue_vms); \
3222 } \
68dc0745 3223 } STMT_END
fb38d079 3224
e08e1e1d 3225
6ac6a52b
JM
3226 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3227 * and sets the NATIVE error status based on it. This special case
3228 * is needed to maintain compatibility with past VMS behavior.
3229 *
3230 * In the default mode on VMS, this number is passed through as
3231 * both the NATIVE and UNIX status. Which makes it different
3232 * that the STATUS_UNIX_EXIT_SET.
3233 *
3234 * In the new POSIX EXIT mode, native status will be set so that the
3235 * actual exit code will can be retrieved by the calling program or
3236 * shell.
3237 *
1a3aec58
JM
3238 * A POSIX exit code is from 0 to 255. If the exit code is higher
3239 * than this, it needs to be assumed that it is a VMS exit code and
3240 * passed through.
6ac6a52b
JM
3241 */
3242
3243# define STATUS_EXIT_SET(n) \
3244 STMT_START { \
3245 I32 evalue = (I32)n; \
3246 PL_statusvalue = evalue; \
3247 if (MY_POSIX_EXIT) \
1a3aec58
JM
3248 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3249 PL_statusvalue_vms = \
3250 (C_FAC_POSIX | (evalue << 3 ) | \
3251 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3252 else \
3253 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3254 set_vaxc_errno(PL_statusvalue_vms); \
3255 } STMT_END
3256
fb38d079
JM
3257
3258 /* This macro forces a success status */
7a7fd8e0
JM
3259# define STATUS_ALL_SUCCESS \
3260 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3261
3262 /* This macro forces a failure status */
7a7fd8e0
JM
3263# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3264 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3265 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3266
68dc0745 3267#else
e5218da5 3268# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3269# if defined(WCOREDUMP)
37038d91 3270# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3271 STMT_START { \
3272 PL_statusvalue_posix = (n); \
3273 if (PL_statusvalue_posix == -1) \
3274 PL_statusvalue = -1; \
3275 else { \
3276 PL_statusvalue = \
3277 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3278 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3279 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3280 } \
3281 } STMT_END
3282# elif defined(WIFEXITED)
37038d91 3283# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3284 STMT_START { \
3285 PL_statusvalue_posix = (n); \
3286 if (PL_statusvalue_posix == -1) \
3287 PL_statusvalue = -1; \
3288 else { \
3289 PL_statusvalue = \
3290 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3291 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3292 } \
3293 } STMT_END
3294# else
37038d91 3295# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3296 STMT_START { \
3297 PL_statusvalue_posix = (n); \
3298 if (PL_statusvalue_posix == -1) \
3299 PL_statusvalue = -1; \
3300 else { \
3301 PL_statusvalue = \
3302 PL_statusvalue_posix & 0xFFFF; \
3303 } \
3304 } STMT_END
3305# endif
3306# define STATUS_UNIX_SET(n) \
68dc0745 3307 STMT_START { \
3280af22
NIS
3308 PL_statusvalue = (n); \
3309 if (PL_statusvalue != -1) \
3310 PL_statusvalue &= 0xFFFF; \
68dc0745 3311 } STMT_END
7a7fd8e0 3312# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3313# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3314# define STATUS_CURRENT STATUS_UNIX
37038d91 3315# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3316# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3317# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3318#endif
3319
cc3604b1
GS
3320/* flags in PL_exit_flags for nature of exit() */
3321#define PERL_EXIT_EXPECTED 0x01
31d77e54 3322#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3323#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3324#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3325
b79b76e0 3326#ifndef PERL_CORE
a7cb1f99 3327/* format to use for version numbers in file/directory names */
273cf8d1 3328/* XXX move to Configure? */
b79b76e0
NC
3329/* This was only ever used for the current version, and that can be done at
3330 compile time, as PERL_FS_VERSION, so should we just delete it? */
3331# ifndef PERL_FS_VER_FMT
3332# define PERL_FS_VER_FMT "%d.%d.%d"
3333# endif
3334#endif
3335
3336#ifndef PERL_FS_VERSION
3337# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3338#endif
3339
45bc9206 3340/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3341 * performance issue, so we allow people to disable it. Also, if
3342 * we are using stdio, there are broken implementations of fflush(NULL)
3343 * out there, Solaris being the most prominent.
45bc9206
GS
3344 */
3345#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3346# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3347# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3348# else
3349# ifdef FFLUSH_ALL
3350# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3351# else
c5be433b 3352# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3353# endif
66fe083f 3354# endif
45bc9206
GS
3355#endif
3356
7766f137
GS
3357#ifndef PERL_WAIT_FOR_CHILDREN
3358# define PERL_WAIT_FOR_CHILDREN NOOP
3359#endif
3360
ba869deb 3361/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3362#ifndef PERL_SET_INTERP
3363# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3364#endif
3365
3366#ifndef PERL_GET_INTERP
3367# define PERL_GET_INTERP (PL_curinterp)
3368#endif
3369
54aff467 3370#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3371# ifdef MULTIPLICITY
ba869deb 3372# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3373# endif
ba869deb
GS
3374# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3375#endif
3376
00f254e2 3377/*
8896765a 3378 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3379 All that is required is that the perl source does not
00f254e2
KW
3380 use "%-p" or "%-<number>p" or "%<number>p" formats.
3381 These formats will still work in perl code.
486ec47a 3382 See comments in sv.c for further details.
8896765a 3383
8896765a 3384 Robin Barker 2005-07-14
f46d31f2 3385
00f254e2 3386 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3387*/
8896765a
RB
3388
3389#ifndef SVf_
63ce7bf0 3390# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3391#endif
3392
8896765a 3393#ifndef SVf
104abab4 3394# define SVf "-p"
d2560b70
RB
3395#endif
3396
014ead4b 3397#ifndef SVf32
8896765a 3398# define SVf32 SVf_(32)
014ead4b
RB
3399#endif
3400
3401#ifndef SVf256
8896765a
RB
3402# define SVf256 SVf_(256)
3403#endif
3404
be2597df
MHM
3405#define SVfARG(p) ((void*)(p))
3406
20023040
FC
3407#ifndef HEKf
3408# define HEKf "2p"
3409#endif
3410
b8fa5213
FC
3411/* Not ideal, but we cannot easily include a number in an already-numeric
3412 * format sequence. */
3413#ifndef HEKf256
3414# define HEKf256 "3p"
3415#endif
3416
20023040
FC
3417#define HEKfARG(p) ((void*)(p))
3418
b17a0679
FC
3419/* Takes three arguments: is_utf8, length, str */
3420#ifndef UTF8f
61608bb7 3421# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3422#endif
3423#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3424
0f94cb1f
FC
3425#define PNf UTF8f
3426#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3427
f46d31f2 3428#ifdef PERL_CORE
486ec47a 3429/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3430# undef UVf
3431#else
170cd9e9
NC
3432# ifndef UVf
3433# define UVf UVuf
3434# endif
d2560b70
RB
3435#endif
3436
fcdf39cf
RGS
3437#ifdef HASATTRIBUTE_DEPRECATED
3438# define __attribute__deprecated__ __attribute__((deprecated))
3439#endif
0dbb1585
AL
3440#ifdef HASATTRIBUTE_FORMAT
3441# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3442#endif
3443#ifdef HASATTRIBUTE_MALLOC
77785eea 3444# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3445#endif
0dbb1585 3446#ifdef HASATTRIBUTE_NONNULL
abb2c242 3447# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3448#endif
0dbb1585 3449#ifdef HASATTRIBUTE_NORETURN
abb2c242 3450# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3451#endif
0dbb1585 3452#ifdef HASATTRIBUTE_PURE
abb2c242 3453# define __attribute__pure__ __attribute__((pure))
f22be1b8 3454#endif
0dbb1585
AL
3455#ifdef HASATTRIBUTE_UNUSED
3456# define __attribute__unused__ __attribute__((unused))
3457#endif
3458#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3459# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3460#endif
3461
0dbb1585 3462/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3463#ifndef __attribute__deprecated__
3464# define __attribute__deprecated__
3465#endif
0dbb1585
AL
3466#ifndef __attribute__format__
3467# define __attribute__format__(x,y,z)
3468#endif
f22be1b8 3469#ifndef __attribute__malloc__
abb2c242 3470# define __attribute__malloc__
f22be1b8
JH
3471#endif
3472#ifndef __attribute__nonnull__
abb2c242 3473# define __attribute__nonnull__(a)
f22be1b8
JH
3474#endif
3475#ifndef __attribute__noreturn__
abb2c242 3476# define __attribute__noreturn__
f22be1b8
JH
3477#endif
3478#ifndef __attribute__pure__
abb2c242 3479# define __attribute__pure__
f22be1b8 3480#endif
0dbb1585
AL
3481#ifndef __attribute__unused__
3482# define __attribute__unused__
3483#endif
f22be1b8 3484#ifndef __attribute__warn_unused_result__
abb2c242
JH
3485# define __attribute__warn_unused_result__
3486#endif
3487
6d59e610
LM
3488#ifdef I_ASSERT
3489# if !defined(DEBUGGING) && !defined(NDEBUG)
3490# define NDEBUG 1
3491# endif
cd13e623
JH
3492# include <assert.h>
3493#endif
3494
0dbb1585
AL
3495/* For functions that are marked as __attribute__noreturn__, it's not
3496 appropriate to call return. In either case, include the lint directive.
3497 */
3498#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3499# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3500#else
bc3d2941 3501# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH
3502#endif
3503
cdfeb707
RB
3504/* Some OS warn on NULL format to printf */
3505#ifdef PRINTF_FORMAT_NULL_OK
3506# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3507#else
00f254e2 3508# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3509#endif
3510
635aebb7 3511#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3512# define EXPECT(expr,val) __builtin_expect(expr,val)
3513#else
3514# define EXPECT(expr,val) (expr)
3515#endif
6d5abc62
NC
3516#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3517#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3518#ifdef HAS_BUILTIN_CHOOSE_EXPR
3519/* placeholder */
3520#endif
b37c2d43 3521
5074d4c5
LM
3522/* STATIC_ASSERT_GLOBAL/STATIC_ASSERT_STMT are like assert(), but for compile
3523 time invariants. That is, their argument must be a constant expression that
3524 can be verified by the compiler. This expression can contain anything that's
3525 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3526 the expression evaluates to 0, compilation fails.
3527 Because they generate no runtime code (i.e. their use is "free"), they're
3528 always active, even under non-DEBUGGING builds.
3529 STATIC_ASSERT_GLOBAL expands to a declaration and is suitable for use at
3530 file scope (outside of any function).
3531 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3532 function.
3533*/
7ea096df 3534#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610
LM
3535/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3536 builtin in C++11.
3537*/
7ea096df 3538/* IBM XL C V11 does not support _Static_assert, no matter what <assert.h> says */
d0044f85 3539# define STATIC_ASSERT_GLOBAL(COND) static_assert(COND, #COND)
6d59e610
LM
3540#else
3541/* We use a bit-field instead of an array because gcc accepts
3542 'typedef char x[n]' where n is not a compile-time constant.
3543 We want to enforce constantness.
3544*/
3545# define STATIC_ASSERT_2(COND, SUFFIX) \
3546 typedef struct { \
3547 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3548 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3549# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3550# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3551#endif
3552/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3553 error (static_assert is a declaration, and only statements can have labels).
3554*/
3555#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD
3556
3557#ifndef __has_builtin
3558# define __has_builtin(x) 0 /* not a clang style compiler */
3559#endif
3560
3561/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3562 hint to a compiler about a statement of fact in a function call free
3563 expression, which allows the compiler to generate better machine code.
3564 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3565 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3566 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD
3567 intrinsic function, see its documents for more details.
3568*/
3569
3570#ifndef DEBUGGING
3571# if __has_builtin(__builtin_unreachable) \
d1020b40 3572 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD
3573# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3574# elif defined(_MSC_VER)
3575# define ASSUME(x) __assume(x)
3576# elif defined(__ARMCC_VERSION) /* untested */
3577# define ASSUME(x) __promise(x)
3578# else
3579/* a random compiler might define assert to its own special optimization token
3580 so pass it through to C lib as a last resort */
3581# define ASSUME(x) assert(x)
3582# endif
3583#else
3584# define ASSUME(x) assert(x)
3585#endif
3586
3587#define NOT_REACHED ASSUME(0)
3588
3fc1aec6
PP
3589/* Some unistd.h's give a prototype for pause() even though
3590 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3591 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3592*/
3593#ifdef HAS_PAUSE
3594#define Pause pause
3595#else
3596#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3597#endif
3598
3599#ifndef IOCPARM_LEN
3600# ifdef IOCPARM_MASK
61f1c44b 3601 /* on BSDish systems we're safe */
748a9306
LW
3602# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3603# else
61f1c44b 3604# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3605 /* on Linux systems we're safe; except when we're not [perl #38223] */
3606# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3607# else
748a9306 3608 /* otherwise guess at what's safe */
61f1c44b
JVD
3609# define IOCPARM_LEN(x) 256
3610# endif
748a9306 3611# endif
a0d0e21e
LW
3612#endif
3613
1761cee5 3614#if defined(__CYGWIN__)
521e0776
GS
3615/* USEMYBINMODE
3616 * This symbol, if defined, indicates that the program should
16fe6d59 3617 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3618 * that a file is in "binary" mode -- that is, that no translation
3619 * of bytes occurs on read or write operations.
3620 */
36894f0b 3621# define USEMYBINMODE /**/
77a40698 3622# include <io.h> /* for setmode() prototype */
16fe6d59 3623# define my_binmode(fp, iotype, mode) \
77a40698 3624 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3625#endif
3626
88d10794
JH
3627#ifdef __CYGWIN__
3628void init_os_extras(void);
3629#endif
3630
cea2e8a9
GS
3631#ifdef UNION_ANY_DEFINITION
3632UNION_ANY_DEFINITION;
3633#else
3634union any {
3635 void* any_ptr;
3636 I32 any_i32;
ae103e09 3637 U32 any_u32;
cea2e8a9 3638 IV any_iv;
c6bf6a65 3639 UV any_uv;
cea2e8a9 3640 long any_long;
9febdf04 3641 bool any_bool;
c76ac1ee 3642 void (*any_dptr) (void*);
acfe0abc 3643 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3644};
3645#endif
3646
acfe0abc 3647typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3648
3649#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3650#define FILTER_DATA(idx) \
3651 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3652#define FILTER_ISREADER(idx) \
3653 (PL_parser && PL_parser->rsfp_filters \
3654 && idx >= AvFILLp(PL_parser->rsfp_filters))
3655#define PERL_FILTER_EXISTS(i) \
3656 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3657 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3658
c5078cac
JH
3659#if defined(_AIX) && !defined(_AIX43)
3660#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3661/* We cannot include <crypt.h> to get the struct crypt_data
3662 * because of setkey prototype problems when threading */
3663typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3664 /* From OSF, Not needed in AIX
3665 char C[28], D[28];
3666 */
3667 char E[48];
3668 char KS[16][48];
3669 char block[66];
3670 char iobuf[16];
3671} CRYPTD;
3672#endif /* threading */
3673#endif /* AIX */
3674
fc6bde6f
DD
3675#ifndef PERL_CALLCONV
3676# ifdef __cplusplus
3677# define PERL_CALLCONV extern "C"
3678# else
3679# define PERL_CALLCONV
3680# endif
3681#endif
3682#ifndef PERL_CALLCONV_NO_RET
3683# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3684#endif
3685
3686/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3687 dont have a noreturn as a declaration specifier
3688*/
3689#ifndef PERL_STATIC_NO_RET
3690# define PERL_STATIC_NO_RET STATIC
3691#endif
3692/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3693 builds that dont have a noreturn as a declaration specifier
3694*/
3695#ifndef PERL_STATIC_INLINE_NO_RET
3696# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3697#endif
3698
e37778c2 3699#if !defined(OS2)
2c2d71f5
JH
3700# include "iperlsys.h"
3701#endif
504f80c1 3702
9c12f1e5 3703#ifdef __LIBCATAMOUNT__
00f254e2 3704#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3705#undef HAS_GROUP
3706#define FAKE_BIT_BUCKET
3707#endif
3708
d10dc2ae
JH
3709/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3710 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3711 * defined by Configure, despite their names being similar to the
3712 * other defines like USE_ITHREADS. Configure in fact knows nothing
3713 * about the randomised hashes. Therefore to enable/disable the hash
3714 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3715#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3716# define USE_HASH_SEED
504f80c1
JH
3717#endif
3718
153a1061
AB
3719/* Win32 defines a type 'WORD' in windef.h, and AmigaOS in exec/types.h.
3720 * This conflicts with the enumerator 'WORD' defined in perly.h.
3721 * The yytokentype enum is only a debugging aid, so it's not really needed. */
3722#if defined(WIN32) || defined(__amigaos4__)
598921a7
NC
3723# define YYTOKENTYPE
3724#endif
3725#include "perly.h"
3726
598921a7 3727
654eccd5
JD
3728/* macros to define bit-fields in structs. */
3729#ifndef PERL_BITFIELD8
3730# define PERL_BITFIELD8 unsigned
3731