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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
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6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
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37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
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. */
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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();
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142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
143# ifndef PERLIO_FUNCS_CONST
144# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
145# endif
146# else
147# define PERL_GET_VARS() PL_VarsPtr
148# endif
149# endif
150#endif
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) \
16c91539 234 if(prog) RX_ENGINE(prog)->free(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
34659ad4 312# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
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
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330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
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342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
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366 *
367 * But sometimes you just want to ignore the return value, e.g. on
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368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
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371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
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375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
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379 */
380#ifndef PERL_UNUSED_RESULT
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381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
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388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
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399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
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406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
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408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
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411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
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421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
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423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
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426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
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431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
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439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
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441# define pTHX void
442# define pTHX_
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
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482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
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486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH
492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS
497#endif
498
27da23d5
JH
499/* Some platforms require marking function declarations
500 * for them to be exportable. Used in perlio.h, proto.h
501 * is handled either by the makedef.pl or by defining the
502 * PERL_CALLCONV to be something special. See also the
503 * definition of XS() in XSUB.h. */
504#ifndef PERL_EXPORT_C
a0c21aa1
JH
505# ifdef __cplusplus
506# define PERL_EXPORT_C extern "C"
507# else
508# define PERL_EXPORT_C extern
509# endif
27da23d5
JH
510#endif
511#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH
512# ifdef __cplusplus
513# define PERL_XS_EXPORT_C extern "C"
514# else
515# define PERL_XS_EXPORT_C
516# endif
27da23d5
JH
517#endif
518
5b692037
JH
519#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
520# ifndef PERL_USE_GCC_BRACE_GROUPS
521# define PERL_USE_GCC_BRACE_GROUPS
522# endif
523#endif
524
728e2803
PP
525/*
526 * STMT_START { statements; } STMT_END;
527 * can be used as a single statement, as in
528 * if (x) STMT_START { ... } STMT_END; else ...
529 *
530 * Trying to select a version that gives no warnings...
531 */
532#if !(defined(STMT_START) && defined(STMT_END))
5b692037 533# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 534# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
535# define STMT_END )
536# else
728e2803
PP
537# define STMT_START do
538# define STMT_END while (0)
728e2803
PP
539# endif
540#endif
541
d6f9c181
JH
542#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
543# define BYTEORDER 0x1234
79072805
LW
544#endif
545
546/* Overall memory policy? */
547#ifndef CONSERVATIVE
548# define LIBERAL 1
549#endif
550
8ada0baa
JH
551#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
552#define ASCIIish
553#else
554#undef ASCIIish
555#endif
556
79072805
LW
557/*
558 * The following contortions are brought to you on behalf of all the
559 * standards, semi-standards, de facto standards, not-so-de-facto standards
560 * of the world, as well as all the other botches anyone ever thought of.
561 * The basic theory is that if we work hard enough here, the rest of the
562 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
563 */
ac58e20f 564
ee0007ab 565/* define this once if either system, instead of cluttering up the src */
7c458fae 566#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
567#define DOSISH 1
568#endif
569
739a0b84 570#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
571# define STANDARD_C 1
572#endif
573
8d87852b 574#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
575# define DONT_DECLARE_STD 1
576#endif
577
352d5a3a 578#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 579# define VOL volatile
663a0e37 580#else
79072805 581# define VOL
663a0e37
LW
582#endif
583
284167a5
SM
584/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
585 * you get a perl without taint support, but doubtlessly with a lesser
586 * degree of support. Do not do so unless you know exactly what it means
587 * technically, have a good reason to do so, and know exactly how the
588 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
589 * a potential security risk due to flat out ignoring the security-relevant
590 * taint flags. This being said, a perl without taint support compiled in
591 * has marginal run-time performance benefits.
592 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
593 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
594 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
595 *
596 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 597 * voids your nonexistent warranty!
284167a5 598 */
dc6d7f5c 599#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
600# define NO_TAINT_SUPPORT 1
601#endif
602
603/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
604 * operations into no-ops for a very modest speed-up. Enable only if you
605 * know what you're doing: tests and CPAN modules' tests are bound to fail.
606 */
dc6d7f5c 607#ifdef NO_TAINT_SUPPORT
284167a5
SM
608# define TAINT NOOP
609# define TAINT_NOT NOOP
610# define TAINT_IF(c) NOOP
611# define TAINT_ENV() NOOP
612# define TAINT_PROPER(s) NOOP
613# define TAINT_set(s) NOOP
614# define TAINT_get 0
615# define TAINTING_get 0
616# define TAINTING_set(s) NOOP
617# define TAINT_WARN_get 0
618# define TAINT_WARN_set(s) NOOP
619#else
620# define TAINT (PL_tainted = TRUE)
621# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
622# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
623# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
624# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
625# define TAINT_set(s) (PL_tainted = (s))
626# define TAINT_get (PL_tainted)
627# define TAINTING_get (PL_tainting)
628# define TAINTING_set(s) (PL_tainting = (s))
629# define TAINT_WARN_get (PL_taint_warn)
630# define TAINT_WARN_set(s) (PL_taint_warn = (s))
631#endif
a687059c 632
20be6587
DM
633/* flags used internally only within pp_subst and pp_substcont */
634#ifdef PERL_CORE
635# define SUBST_TAINT_STR 1 /* string tainted */
636# define SUBST_TAINT_PAT 2 /* pattern tainted */
637# define SUBST_TAINT_REPL 4 /* replacement tainted */
638# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
639# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
640#endif
641
d460ef45 642/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
643 defines move there? If so, I could simplify this a lot. --AD 9/96.
644*/
645/* Process group stuff changed from traditional BSD to POSIX.
646 perlfunc.pod documents the traditional BSD-style syntax, so we'll
647 try to preserve that, if possible.
648*/
649#ifdef HAS_SETPGID
650# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 651#else
a6e633de
PP
652# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
653# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
654# else
655# ifdef HAS_SETPGRP2 /* DG/UX */
656# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
657# endif
658# endif
659#endif
660#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
661# define HAS_SETPGRP /* Well, effectively it does . . . */
662#endif
663
664/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
665 our life easier :-) so we'll try it.
666*/
667#ifdef HAS_GETPGID
668# define BSD_GETPGRP(pid) getpgid((pid))
669#else
670# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
671# define BSD_GETPGRP(pid) getpgrp((pid))
672# else
673# ifdef HAS_GETPGRP2 /* DG/UX */
674# define BSD_GETPGRP(pid) getpgrp2((pid))
675# endif
676# endif
677#endif
678#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
679# define HAS_GETPGRP /* Well, effectively it does . . . */
680#endif
681
d460ef45 682/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
683 have different behaviors, but perl.h used to define USE_BSDPGRP
684 (prior to 5.003_05) so some extension might depend on it.
685*/
686#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
687# ifndef USE_BSDPGRP
688# define USE_BSDPGRP
689# endif
663a0e37
LW
690#endif
691
486ec47a 692/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
693 pthread.h must be included before all other header files.
694*/
3db8f154 695#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
696# include <pthread.h>
697#endif
698
58ab9e8b 699#include <sys/types.h>
663a0e37 700
760ac839
LW
701#ifdef __cplusplus
702# ifndef I_STDARG
703# define I_STDARG 1
704# endif
705#endif
706
c7925a5e
DD
707/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
708 which is included from stdarg.h. Bad definition not present in SD 2008
709 SDK headers. wince.h is not yet included, so we cant fix this from there
710 since by then MB_CUR_MAX will be defined from stdlib.h.
711 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
712 since cewchar.h can't be included this early */
713#if defined(UNDER_CE) && (_MSC_VER < 1300)
714# define MB_CUR_MAX 1
715#endif
760ac839
LW
716#ifdef I_STDARG
717# include <stdarg.h>
718#else
719# ifdef I_VARARGS
720# include <varargs.h>
721# endif
722#endif
723
27db2737
JH
724#ifdef I_STDINT
725# include <stdint.h>
726#endif
727
fe14fcc3 728#include <ctype.h>
a0d0e21e
LW
729
730#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
731#undef METHOD
a0d0e21e
LW
732#endif
733
12ae5dfc
JH
734#ifdef PERL_MICRO
735# define NO_LOCALE
736#endif
737
4633a7c4 738#ifdef I_LOCALE
36477c24 739# include <locale.h>
4633a7c4
LW
740#endif
741
36477c24
PP
742#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
743# define USE_LOCALE
ccd65d51
KW
744# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
745 capability */
36477c24
PP
746# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
747 && defined(HAS_STRXFRM)
748# define USE_LOCALE_COLLATE
749# endif
750# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
751# define USE_LOCALE_CTYPE
752# endif
753# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
754# define USE_LOCALE_NUMERIC
755# endif
fa9b773e
KW
756# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
757# define USE_LOCALE_MESSAGES
758# endif
759# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
760# define USE_LOCALE_MONETARY
761# endif
56e45410
KW
762# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
763# define USE_LOCALE_TIME
764# endif
b385bb4d
KW
765# ifndef WIN32 /* No wrapper except on Windows */
766# define my_setlocale(a,b) setlocale(a,b)
767# endif
36477c24 768#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 769
fe14fcc3 770#include <setjmp.h>
79072805 771
a0d0e21e 772#ifdef I_SYS_PARAM
79072805
LW
773# ifdef PARAM_NEEDS_TYPES
774# include <sys/types.h>
775# endif
776# include <sys/param.h>
352d5a3a 777#endif
79072805 778
ce3470dc
AD
779/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
780 value something like 199306. This may be useful if no more-specific
781 feature test is available.
782*/
783#if defined(BSD)
784# ifndef BSDish
785# define BSDish
786# endif
787#endif
788
79072805 789/* Use all the "standard" definitions? */
a0d0e21e 790#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 791# include <stdlib.h>
ff68c719 792#endif
03a14243 793
3f270f98
JH
794/* If this causes problems, set i_unistd=undef in the hint file. */
795#ifdef I_UNISTD
796# include <unistd.h>
797#endif
798
de8ca8af
NT
799/* for WCOREDUMP */
800#ifdef I_SYS_WAIT
801# include <sys/wait.h>
802#endif
803
9969cdde 804#ifdef __SYMBIAN32__
27da23d5
JH
805# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
806#endif
807
21e89b5f 808#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 809EXTERN_C int syscall(int, ...);
2ef53570
JH
810#endif
811
21e89b5f 812#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 813EXTERN_C int usleep(unsigned int);
2ef53570
JH
814#endif
815
1109a392
MHM
816#ifdef PERL_CORE
817
818/* macros for correct constant construction */
819# if INTSIZE >= 2
820# define U16_CONST(x) ((U16)x##U)
821# else
822# define U16_CONST(x) ((U16)x##UL)
823# endif
824
825# if INTSIZE >= 4
826# define U32_CONST(x) ((U32)x##U)
827# else
828# define U32_CONST(x) ((U32)x##UL)
829# endif
830
831# ifdef HAS_QUAD
832# if INTSIZE >= 8
833# define U64_CONST(x) ((U64)x##U)
834# elif LONGSIZE >= 8
835# define U64_CONST(x) ((U64)x##UL)
836# elif QUADKIND == QUAD_IS_LONG_LONG
837# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
838# elif QUADKIND == QUAD_IS___INT64
839# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
840# else /* best guess we can make */
841# define U64_CONST(x) ((U64)x##UL)
842# endif
843# endif
844
845/* byte-swapping functions for big-/little-endian conversion */
846# define _swab_16_(x) ((U16)( \
847 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
848 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
849
850# define _swab_32_(x) ((U32)( \
851 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
852 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
853 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
854 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
855
856# ifdef HAS_QUAD
857# define _swab_64_(x) ((U64)( \
858 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
859 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
860 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
861 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
862 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
863 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
864 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
865 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
866# endif
867
9c17f24a
NC
868/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
869 at least on FreeBSD. YMMV, so experiment. */
870#ifndef PERL_ARENA_SIZE
871#define PERL_ARENA_SIZE 4080
872#endif
873
ccb2c8b8 874/* Maximum level of recursion */
2b9dff67
RGS
875#ifndef PERL_SUB_DEPTH_WARN
876#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
877#endif
878
1109a392
MHM
879#endif /* PERL_CORE */
880
bdf3085f
NC
881/* We no longer default to creating a new SV for GvSV.
882 Do this before embed. */
883#ifndef PERL_CREATE_GVSV
7459f06b
NC
884# ifndef PERL_DONT_CREATE_GVSV
885# define PERL_DONT_CREATE_GVSV
886# endif
bdf3085f
NC
887#endif
888
ca0c25f6
NC
889#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
890#define PERL_USES_PL_PIDSTATUS
891#endif
892
739a0b84 893#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
894#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
895#endif
896
c31fac66
GS
897#define MEM_SIZE Size_t
898
1936d2a7
NC
899/* Round all values passed to malloc up, by default to a multiple of
900 sizeof(size_t)
901*/
902#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
903#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
904#endif
905
f1200559
WH
906/* sv_grow() will expand strings by at least a certain percentage of
907 the previously *used* length to avoid excessive calls to realloc().
908 The default is 25% of the current length.
909*/
910#ifndef PERL_STRLEN_EXPAND_SHIFT
911# define PERL_STRLEN_EXPAND_SHIFT 2
912#endif
913
3800c318 914#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
915# include <stddef.h>
916# define STRUCT_OFFSET(s,m) offsetof(s,m)
917#else
918# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
919#endif
920
921/* ptrdiff_t is C11, so undef it under pedantic builds */
922#ifdef PERL_GCC_PEDANTIC
923# undef HAS_PTRDIFF_T
51371543
GS
924#endif
925
9969cdde 926#ifndef __SYMBIAN32__
27da23d5
JH
927# if defined(I_STRING) || defined(__cplusplus)
928# include <string.h>
929# else
930# include <strings.h>
931# endif
51371543
GS
932#endif
933
55497cff
PP
934/* This comes after <stdlib.h> so we don't try to change the standard
935 * library prototypes; we'll use our own in proto.h instead. */
03a14243 936
4633a7c4 937#ifdef MYMALLOC
86058a2d 938# ifdef PERL_POLLUTE_MALLOC
ee13e175 939# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
940# define Perl_malloc malloc
941# define Perl_calloc calloc
942# define Perl_realloc realloc
943# define Perl_mfree free
ee13e175 944# endif
86058a2d
GS
945# else
946# define EMBEDMYMALLOC /* for compatibility */
947# endif
827e134a 948
651b9576
GS
949# define safemalloc Perl_malloc
950# define safecalloc Perl_calloc
951# define saferealloc Perl_realloc
952# define safefree Perl_mfree
22f7c9c9
JH
953# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
954 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
955 code; \
956 } STMT_END
957# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
958 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
959# define panic_write2(s) write(2, s, strlen(s))
960# define CHECK_MALLOC_TAINT(newval) \
961 CHECK_MALLOC_TOO_LATE_FOR_( \
962 if (newval) { \
acfd4d8e 963 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 964 exit(1); })
22f7c9c9 965# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 966 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
967 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
968 }} STMT_END;
f2517201
GS
969#else /* MYMALLOC */
970# define safemalloc safesysmalloc
971# define safecalloc safesyscalloc
972# define saferealloc safesysrealloc
973# define safefree safesysfree
22f7c9c9
JH
974# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
975# define CHECK_MALLOC_TAINT(newval) ((void)0)
976# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 977#endif /* MYMALLOC */
4633a7c4 978
fe13d51d 979/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 980#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
981#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
982#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
983#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
984
a0d0e21e
LW
985#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
986#define strchr index
987#define strrchr rindex
988#endif
989
16d20bd9
AD
990#ifdef I_MEMORY
991# include <memory.h>
992#endif
993
fe14fcc3 994#ifdef HAS_MEMCPY
85e6fe83 995# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 996# ifndef memcpy
20ce7b12 997 extern char * memcpy (char*, char*, int);
ee0007ab
LW
998# endif
999# endif
1000#else
1001# ifndef memcpy
1002# ifdef HAS_BCOPY
1003# define memcpy(d,s,l) bcopy(s,d,l)
1004# else
1005# define memcpy(d,s,l) my_bcopy(s,d,l)
1006# endif
1007# endif
1008#endif /* HAS_MEMCPY */
fe14fcc3 1009
ee0007ab 1010#ifdef HAS_MEMSET
85e6fe83 1011# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1012# ifndef memset
20ce7b12 1013 extern char *memset (char*, int, int);
ee0007ab
LW
1014# endif
1015# endif
ee0007ab 1016#else
12ae5dfc 1017# undef memset
fc36a67e 1018# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1019#endif /* HAS_MEMSET */
1020
85e6fe83 1021#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1022# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1023# define memmove(d,s,l) bcopy(s,d,l)
1024# else
2304df62 1025# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1026# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1027# else
79072805 1028# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1029# endif
352d5a3a 1030# endif
d9d8d8de 1031#endif
ee0007ab 1032
36477c24
PP
1033#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1034# undef HAS_MEMCMP
1035#endif
1036
1037#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1038# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1039# ifndef memcmp
20ce7b12 1040 extern int memcmp (char*, char*, int);
ee0007ab
LW
1041# endif
1042# endif
1043#else
1044# ifndef memcmp
ecfc5424 1045# define memcmp my_memcmp
352d5a3a 1046# endif
36477c24 1047#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1048
fc36a67e 1049#ifndef memzero
c635e13b
PP
1050# ifdef HAS_MEMSET
1051# define memzero(d,l) memset(d,0,l)
79072805 1052# else
c635e13b
PP
1053# ifdef HAS_BZERO
1054# define memzero(d,l) bzero(d,l)
79072805 1055# else
fc36a67e 1056# define memzero(d,l) my_bzero(d,l)
79072805
LW
1057# endif
1058# endif
d9d8d8de 1059#endif
378cc40b 1060
2f42fcb0 1061#ifndef PERL_MICRO
0f27ced1
JH
1062#ifndef memchr
1063# ifndef HAS_MEMCHR
1064# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1065# endif
1066#endif
2f42fcb0 1067#endif
0f27ced1 1068
36477c24
PP
1069#ifndef HAS_BCMP
1070# ifndef bcmp
1071# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1072# endif
36477c24 1073#endif /* !HAS_BCMP */
378cc40b 1074
ae986130 1075#ifdef I_NETINET_IN
79072805 1076# include <netinet/in.h>
ae986130
LW
1077#endif
1078
28e8609d
JH
1079#ifdef I_ARPA_INET
1080# include <arpa/inet.h>
1081#endif
1082
1aef975c 1083#ifdef I_SYS_STAT
84902520 1084# include <sys/stat.h>
1aef975c 1085#endif
79072805 1086
287a962e
JD
1087/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1088 This definition should ideally go into win32/win32.h, but S_IFIFO is
1089 used later here in perl.h before win32/win32.h is being included. */
1090#if !defined(S_IFIFO) && defined(_S_IFIFO)
1091# define S_IFIFO _S_IFIFO
1092#endif
1093
cc3315ba 1094/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1095 like UTekV) are broken, sometimes giving false positives. Undefine
1096 them here and let the code below set them to proper values.
1097
1098 The ghs macro stands for GreenHills Software C-1.8.5 which
1099 is the C compiler for sysV88 and the various derivatives.
1100 This header file bug is corrected in gcc-2.5.8 and later versions.
1101 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1102
cc3315ba 1103#if defined(m88k) && defined(ghs)
79072805
LW
1104# undef S_ISDIR
1105# undef S_ISCHR
1106# undef S_ISBLK
1107# undef S_ISREG
1108# undef S_ISFIFO
1109# undef S_ISLNK
ee0007ab 1110#endif
135863df 1111
663a0e37
LW
1112#ifdef I_TIME
1113# include <time.h>
ffed7fef 1114#endif
663a0e37 1115
fe14fcc3 1116#ifdef I_SYS_TIME
85e6fe83 1117# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1118# define KERNEL
1119# endif
1120# include <sys/time.h>
85e6fe83 1121# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1122# undef KERNEL
1123# endif
a687059c 1124#endif
135863df 1125
55497cff 1126#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1127# include <sys/times.h>
d9d8d8de 1128#endif
8d063cd8 1129
fe14fcc3 1130#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1131# undef HAS_STRERROR
663a0e37
LW
1132#endif
1133
1134#include <errno.h>
1e743fda 1135
acfe0abc 1136#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1137# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1138#endif
1139
da70cfc6 1140#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1141# include <sys/socket.h>
1142# if defined(USE_SOCKS) && defined(I_SOCKS)
1143# if !defined(INCLUDE_PROTOTYPES)
1144# define INCLUDE_PROTOTYPES /* for <socks.h> */
1145# define PERL_SOCKS_NEED_PROTOTYPES
1146# endif
1147# include <socks.h>
1148# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1149# undef INCLUDE_PROTOTYPES
1150# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1151# endif
d460ef45 1152# endif
1e743fda 1153# ifdef I_NETDB
2986a63f
JH
1154# ifdef NETWARE
1155# include<stdio.h>
1156# endif
1e743fda
JH
1157# include <netdb.h>
1158# endif
1159# ifndef ENOTSOCK
1160# ifdef I_NET_ERRNO
1161# include <net/errno.h>
1162# endif
1163# endif
1164#endif
1165
fa0a29af 1166/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1167 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1168 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1169#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1170# if defined(__THROW) && defined(__GLIBC__)
1171int sockatmark(int) __THROW;
1172# else
2ef53570 1173int sockatmark(int);
29820b6d 1174# endif
2ef53570
JH
1175#endif
1176
7e827271 1177#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
1178EXTERN_C int fchdir(int);
1179EXTERN_C int flock(int, int);
1180EXTERN_C int fseeko(FILE *, off_t, int);
1181EXTERN_C off_t ftello(FILE *);
1182#endif
1183
7e827271 1184#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1185EXTERN_C char *crypt(const char *, const char *);
7e827271 1186EXTERN_C char **environ;
1ccb7c8d
JH
1187#endif
1188
83a6ff2e 1189#if defined(__cplusplus)
ce3470dc 1190# if defined(BSDish)
b91fbb93 1191EXTERN_C char **environ;
83a6ff2e 1192# elif defined(__CYGWIN__)
667e2948
SP
1193EXTERN_C char *crypt(const char *, const char *);
1194#endif
83a6ff2e 1195#endif
667e2948 1196
1e743fda
JH
1197#ifdef SETERRNO
1198# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1199#endif
f86702cc
PP
1200
1201#ifdef VMS
1202# define SETERRNO(errcode,vmserrcode) \
1203 STMT_START { \
1204 set_errno(errcode); \
1205 set_vaxc_errno(vmserrcode); \
1206 } STMT_END
4ee39169
CS
1207# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1208# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1209# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1210# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1211
93189314
JH
1212# define LIB_INVARG LIB$_INVARG
1213# define RMS_DIR RMS$_DIR
1214# define RMS_FAC RMS$_FAC
1215# define RMS_FEX RMS$_FEX
1216# define RMS_FNF RMS$_FNF
1217# define RMS_IFI RMS$_IFI
1218# define RMS_ISI RMS$_ISI
1219# define RMS_PRV RMS$_PRV
1220# define SS_ACCVIO SS$_ACCVIO
1221# define SS_DEVOFFLINE SS$_DEVOFFLINE
1222# define SS_IVCHAN SS$_IVCHAN
1223# define SS_NORMAL SS$_NORMAL
8a9f18be 1224# define SS_NOPRIV SS$_NOPRIV
748a9306 1225#else
93189314
JH
1226# define LIB_INVARG 0
1227# define RMS_DIR 0
1228# define RMS_FAC 0
1229# define RMS_FEX 0
1230# define RMS_FNF 0
1231# define RMS_IFI 0
1232# define RMS_ISI 0
1233# define RMS_PRV 0
1234# define SS_ACCVIO 0
1235# define SS_DEVOFFLINE 0
1236# define SS_IVCHAN 0
1237# define SS_NORMAL 0
8a9f18be 1238# define SS_NOPRIV 0
748a9306 1239#endif
ed6116ce 1240
6ca940a9
TC
1241#ifdef WIN32
1242# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1243# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1244# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1245# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1246#endif
1247
1248#ifdef OS2
1249# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1250# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1251# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1252# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1253#endif
1254
1255#ifndef SETERRNO
1256# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1257#endif
1258
1259#ifndef dSAVEDERRNO
1260# define dSAVEDERRNO int saved_errno
1261# define dSAVE_ERRNO int saved_errno = errno
1262# define SAVE_ERRNO (saved_errno = errno)
1263# define RESTORE_ERRNO (errno = saved_errno)
1264#endif
1265
f5fa9033 1266#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1267
1268#define CLEAR_ERRSV() STMT_START { \
1269 if (!GvSV(PL_errgv)) { \
1270 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1271 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1272 SvREFCNT_dec(GvSV(PL_errgv)); \
1273 GvSV(PL_errgv) = newSVpvs(""); \
1274 } else { \
1275 SV *const errsv = GvSV(PL_errgv); \
1276 sv_setpvs(errsv, ""); \
1277 if (SvMAGICAL(errsv)) { \
1278 mg_free(errsv); \
1279 } \
1280 SvPOK_only(errsv); \
1281 } \
1282 } STMT_END
1283
1284
414bf5ae
MHM
1285#ifdef PERL_CORE
1286# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1287# define DEFSV_set(sv) \
1288 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1289# define SAVE_DEFSV \
1290 ( \
1291 save_gp(PL_defgv, 0), \
1292 GvINTRO_off(PL_defgv), \
1293 SAVEGENERICSV(GvSV(PL_defgv)), \
1294 GvSV(PL_defgv) = NULL \
1295 )
414bf5ae
MHM
1296#else
1297# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1298# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1299# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1300#endif
38a03e6e 1301
55497cff 1302#ifndef errno
5ff3f7a4
GS
1303 extern int errno; /* ANSI allows errno to be an lvalue expr.
1304 * For example in multithreaded environments
1305 * something like this might happen:
1306 * extern int *_errno(void);
1307 * #define errno (*_errno()) */
d9d8d8de 1308#endif
663a0e37 1309
7e996671
KW
1310#define UNKNOWN_ERRNO_MSG "(unknown)"
1311
2304df62 1312#ifdef HAS_STRERROR
b3e384bf 1313# ifndef DONT_DECLARE_STD
a0d0e21e 1314# ifdef VMS
20ce7b12 1315 char *strerror (int,...);
a0d0e21e 1316# else
20ce7b12 1317 char *strerror (int);
a0d0e21e 1318# endif
b3e384bf
KW
1319# endif
1320# ifndef Strerror
1321# define Strerror strerror
1322# endif
2304df62
AD
1323#else
1324# ifdef HAS_SYS_ERRLIST
79072805
LW
1325 extern int sys_nerr;
1326 extern char *sys_errlist[];
2304df62
AD
1327# ifndef Strerror
1328# define Strerror(e) \
7e996671 1329 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1330# endif
79072805 1331# endif
35c8bce7 1332#endif
663a0e37 1333
2304df62 1334#ifdef I_SYS_IOCTL
79072805
LW
1335# ifndef _IOCTL_
1336# include <sys/ioctl.h>
1337# endif
a687059c
LW
1338#endif
1339
ee0007ab 1340#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1341# ifdef HAS_SOCKETPAIR
1342# undef HAS_SOCKETPAIR
1343# endif
2304df62
AD
1344# ifdef I_NDBM
1345# undef I_NDBM
79072805 1346# endif
a687059c
LW
1347#endif
1348
02fc2eee
NC
1349#ifndef HAS_SOCKETPAIR
1350# ifdef HAS_SOCKET
1351# define socketpair Perl_my_socketpair
1352# endif
1353#endif
1354
a687059c 1355#if INTSIZE == 2
79072805
LW
1356# define htoni htons
1357# define ntohi ntohs
a687059c 1358#else
79072805
LW
1359# define htoni htonl
1360# define ntohi ntohl
a687059c
LW
1361#endif
1362
a0d0e21e 1363/* Configure already sets Direntry_t */
35c8bce7 1364#if defined(I_DIRENT)
663a0e37 1365# include <dirent.h>
ae986130 1366#else
fe14fcc3 1367# ifdef I_SYS_NDIR
79a0689e 1368# include <sys/ndir.h>
663a0e37 1369# else
fe14fcc3 1370# ifdef I_SYS_DIR
79a0689e
LW
1371# ifdef hp9000s500
1372# include <ndir.h> /* may be wrong in the future */
1373# else
1374# include <sys/dir.h>
1375# endif
663a0e37
LW
1376# endif
1377# endif
4633a7c4 1378#endif
a687059c 1379
c623bd54
LW
1380/*
1381 * The following gobbledygook brought to you on behalf of __STDC__.
1382 * (I could just use #ifndef __STDC__, but this is more bulletproof
1383 * in the face of half-implementations.)
1384 */
1385
21e89b5f 1386#if defined(I_SYSMODE)
ca6e1c26
JH
1387#include <sys/mode.h>
1388#endif
1389
c623bd54
LW
1390#ifndef S_IFMT
1391# ifdef _S_IFMT
1392# define S_IFMT _S_IFMT
1393# else
1394# define S_IFMT 0170000
1395# endif
1396#endif
1397
1398#ifndef S_ISDIR
1399# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1400#endif
1401
1402#ifndef S_ISCHR
1403# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1404#endif
1405
1406#ifndef S_ISBLK
fe14fcc3
LW
1407# ifdef S_IFBLK
1408# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1409# else
1410# define S_ISBLK(m) (0)
1411# endif
c623bd54
LW
1412#endif
1413
1414#ifndef S_ISREG
1415# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1416#endif
1417
1418#ifndef S_ISFIFO
fe14fcc3
LW
1419# ifdef S_IFIFO
1420# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1421# else
1422# define S_ISFIFO(m) (0)
1423# endif
c623bd54
LW
1424#endif
1425
1426#ifndef S_ISLNK
1427# ifdef _S_ISLNK
1428# define S_ISLNK(m) _S_ISLNK(m)
1429# else
1430# ifdef _S_IFLNK
1431# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1432# else
1433# ifdef S_IFLNK
1434# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1435# else
1436# define S_ISLNK(m) (0)
1437# endif
1438# endif
1439# endif
1440#endif
1441
1442#ifndef S_ISSOCK
1443# ifdef _S_ISSOCK
1444# define S_ISSOCK(m) _S_ISSOCK(m)
1445# else
1446# ifdef _S_IFSOCK
1447# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1448# else
1449# ifdef S_IFSOCK
1450# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1451# else
1452# define S_ISSOCK(m) (0)
1453# endif
1454# endif
1455# endif
1456#endif
1457
1458#ifndef S_IRUSR
1459# ifdef S_IREAD
1460# define S_IRUSR S_IREAD
1461# define S_IWUSR S_IWRITE
1462# define S_IXUSR S_IEXEC
1463# else
1464# define S_IRUSR 0400
1465# define S_IWUSR 0200
1466# define S_IXUSR 0100
1467# endif
fac7cdfc 1468#endif
1469
1470#ifndef S_IRGRP
1471# ifdef S_IRUSR
1472# define S_IRGRP (S_IRUSR>>3)
1473# define S_IWGRP (S_IWUSR>>3)
1474# define S_IXGRP (S_IXUSR>>3)
1475# else
1476# define S_IRGRP 0040
1477# define S_IWGRP 0020
1478# define S_IXGRP 0010
1479# endif
1480#endif
1481
1482#ifndef S_IROTH
1483# ifdef S_IRUSR
1484# define S_IROTH (S_IRUSR>>6)
1485# define S_IWOTH (S_IWUSR>>6)
1486# define S_IXOTH (S_IXUSR>>6)
1487# else
1488# define S_IROTH 0040
1489# define S_IWOTH 0020
1490# define S_IXOTH 0010
1491# endif
c623bd54
LW
1492#endif
1493
1494#ifndef S_ISUID
1495# define S_ISUID 04000
1496#endif
1497
1498#ifndef S_ISGID
1499# define S_ISGID 02000
1500#endif
1501
ca6e1c26
JH
1502#ifndef S_IRWXU
1503# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1504#endif
ca6e1c26
JH
1505
1506#ifndef S_IRWXG
1507# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1508#endif
ca6e1c26
JH
1509
1510#ifndef S_IRWXO
1511# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1512#endif
ca6e1c26 1513
b6c36746 1514/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1515 * which would get included through <sys/file.h >, but that is 3000
1516 * lines in the future. --jhi */
1517
b6c36746 1518#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1519# define S_IREAD S_IRUSR
1520#endif
1521
b6c36746 1522#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1523# define S_IWRITE S_IWUSR
1524#endif
1525
1526#ifndef S_IEXEC
1527# define S_IEXEC S_IXUSR
1528#endif
1529
a0d0e21e 1530#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1531# define SLOPPYDIVIDE
1532#endif
1533
748a9306
LW
1534#ifdef UV
1535#undef UV
1536#endif
1537
ce582cee
NC
1538/* For the times when you want the return value of sprintf, and you want it
1539 to be the length. Can't have a thread variable passed in, because C89 has
1540 no varargs macros.
1541*/
1542#ifdef SPRINTF_RETURNS_STRLEN
1543# define my_sprintf sprintf
1544#else
1545# define my_sprintf Perl_my_sprintf
1546#endif
1547
5b692037
JH
1548/*
1549 * If we have v?snprintf() and the C99 variadic macros, we can just
1550 * use just the v?snprintf(). It is nice to try to trap the buffer
1551 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1552 * gcc statement expressions, then use the function wrappers which try
1553 * to trap the overflow. If we can use the gcc statement expressions,
1554 * we can try that even with the version that uses the C99 variadic
1555 * macros.
5b692037
JH
1556 */
1557
1208b3dd
JH
1558/* Note that we do not check against snprintf()/vsnprintf() returning
1559 * negative values because that is non-standard behaviour and we use
1560 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1561 * that should be true only if the snprintf()/vsnprintf() are true
1562 * to the standard. */
1563
e8549682
JH
1564#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
1565
a4eca1d4
JH
1566#ifdef USE_QUADMATH
1567# define my_snprintf Perl_my_snprintf
1568# define PERL_MY_SNPRINTF_GUARDED
1569#else
dfeee9b1 1570#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1571# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1572# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1573# define PERL_MY_SNPRINTF_GUARDED
5b692037 1574# else
e8549682 1575# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1576# endif
1577#else
1578# define my_snprintf Perl_my_snprintf
1208b3dd 1579# define PERL_MY_SNPRINTF_GUARDED
5b692037 1580#endif
a4eca1d4 1581#endif
5b692037 1582
a4eca1d4
JH
1583/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1584 * dies if called under USE_QUADMATH. */
dfeee9b1 1585#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1586# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1587# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1588# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1589# else
e8549682 1590# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1591# endif
1592#else
1593# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1594# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1595#endif
d9fad198 1596
e8549682
JH
1597/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1598 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1599 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1600 * completely ignore it: otherwise you cannot know whether your output
1601 * was too long.)
1602 *
1603 * int len = my_sprintf(buf, max, ...);
1604 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1605 *
1606 * The trick is that in certain platforms [a] the my_sprintf() already
1607 * contains the sanity check, while in certain platforms [b] it needs
1608 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1609 * platforms the POST_GUARD actually does nothing since the check has
1610 * already been done. Watch out for the max being the same in both calls.
1611 *
1612 * If you actually use the snprintf/vsnprintf return value already,
1613 * you assumedly are checking its validity somehow. But you can
1614 * insert the POST_GUARD() also in that case. */
1615
1616#ifndef PERL_MY_SNPRINTF_GUARDED
1617# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1618#else
1619# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1620#endif
1621
1622#ifndef PERL_MY_VSNPRINTF_GUARDED
1623# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1624#else
1625# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1626#endif
1627
a6cc4119
SP
1628#ifdef HAS_STRLCAT
1629# define my_strlcat strlcat
1630#else
1631# define my_strlcat Perl_my_strlcat
1632#endif
1633
1634#ifdef HAS_STRLCPY
1635# define my_strlcpy strlcpy
1636#else
1637# define my_strlcpy Perl_my_strlcpy
1638#endif
1639
05f13f53 1640/*
27d4fb96
PP
1641 The IV type is supposed to be long enough to hold any integral
1642 value or a pointer.
1643 --Andy Dougherty August 1996
1644*/
1645
a22e52b9
JH
1646typedef IVTYPE IV;
1647typedef UVTYPE UV;
8175356b 1648
10cc9d2a 1649#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1650# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1651# define IV_MAX INT64_MAX
1652# define IV_MIN INT64_MIN
1653# define UV_MAX UINT64_MAX
cae7ae48
JH
1654# ifndef UINT64_MIN
1655# define UINT64_MIN 0
1656# endif
5ff3f7a4
GS
1657# define UV_MIN UINT64_MIN
1658# else
1659# define IV_MAX PERL_QUAD_MAX
1660# define IV_MIN PERL_QUAD_MIN
1661# define UV_MAX PERL_UQUAD_MAX
1662# define UV_MIN PERL_UQUAD_MIN
1663# endif
cf2093f6
JH
1664# define IV_IS_QUAD
1665# define UV_IS_QUAD
79072805 1666#else
8175356b 1667# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1668# define IV_MAX INT32_MAX
1669# define IV_MIN INT32_MIN
716026f9
DL
1670# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1671# define UV_MAX UINT32_MAX
1672# else
1673# define UV_MAX 4294967295U
1674# endif
cae7ae48
JH
1675# ifndef UINT32_MIN
1676# define UINT32_MIN 0
1677# endif
5ff3f7a4
GS
1678# define UV_MIN UINT32_MIN
1679# else
1680# define IV_MAX PERL_LONG_MAX
1681# define IV_MIN PERL_LONG_MIN
1682# define UV_MAX PERL_ULONG_MAX
1683# define UV_MIN PERL_ULONG_MIN
1684# endif
8175356b 1685# if IVSIZE == 8
cf2093f6
JH
1686# define IV_IS_QUAD
1687# define UV_IS_QUAD
de1c2614
JH
1688# ifndef HAS_QUAD
1689# define HAS_QUAD
1690# endif
cf2093f6
JH
1691# else
1692# undef IV_IS_QUAD
1693# undef UV_IS_QUAD
9ea40801 1694#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1695/* We think that removing this decade-old undef this will cause too much
1696 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1697 However, we do need HAS_QUAD in the core for use by the drand48 code,
1698 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1699# undef HAS_QUAD
e25d460c 1700#endif
cf2093f6 1701# endif
79072805 1702#endif
d7d93a81 1703
6313e544
JH
1704#define Size_t_MAX (~(Size_t)0)
1705#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1706
cae7ae48 1707#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1708#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1709
28e5dec8 1710#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1711#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1712#endif
1713
d460ef45 1714/*
26bb67e2
JH
1715 * The macros INT2PTR and NUM2PTR are (despite their names)
1716 * bi-directional: they will convert int/float to or from pointers.
1717 * However the conversion to int/float are named explicitly:
1718 * PTR2IV, PTR2UV, PTR2NV.
1719 *
1720 * For int conversions we do not need two casts if pointers are
1721 * the same size as IV and UV. Otherwise we need an explicit
1722 * cast (PTRV) to avoid compiler warnings.
1723 */
56431972
RB
1724#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1725# define PTRV UV
1726# define INT2PTR(any,d) (any)(d)
1727#else
d460ef45 1728# if PTRSIZE == LONGSIZE
56431972 1729# define PTRV unsigned long
e91e3b10 1730# define PTR2ul(p) (unsigned long)(p)
42718184 1731# else
56431972 1732# define PTRV unsigned
42718184 1733# endif
e91e3b10
RB
1734#endif
1735
1736#ifndef INT2PTR
56431972 1737# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1738#endif
e91e3b10
RB
1739
1740#ifndef PTR2ul
1741# define PTR2ul(p) INT2PTR(unsigned long,p)
1742#endif
1743
56431972
RB
1744#define NUM2PTR(any,d) (any)(PTRV)(d)
1745#define PTR2IV(p) INT2PTR(IV,p)
1746#define PTR2UV(p) INT2PTR(UV,p)
1747#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1748#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1749
8141890a
JH
1750/* According to strict ANSI C89 one cannot freely cast between
1751 * data pointers and function (code) pointers. There are at least
1752 * two ways around this. One (used below) is to do two casts,
1753 * first the other pointer to an (unsigned) integer, and then
1754 * the integer to the other pointer. The other way would be
1755 * to use unions to "overlay" the pointers. For an example of
1756 * the latter technique, see union dirpu in struct xpvio in sv.h.
1757 * The only feasible use is probably temporarily storing
1758 * function pointers in a data pointer (such as a void pointer). */
1759
e91e3b10
RB
1760#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1761#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1762
65202027 1763#ifdef USE_LONG_DOUBLE
1048ea30
JH
1764# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1765# define LONG_DOUBLE_EQUALS_DOUBLE
1766# endif
68d4903c 1767# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1768# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1769# endif
1770#endif
1771
2d4389e4
JH
1772#ifdef OVR_DBL_DIG
1773/* Use an overridden DBL_DIG */
1774# ifdef DBL_DIG
1775# undef DBL_DIG
1776# endif
1777# define DBL_DIG OVR_DBL_DIG
1778#else
1779/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1780 default value for printing floating point numbers in Gconvert
1781 (see config.h). (It also has other uses, such as figuring out if
1782 a given precision of printing can be done with a double instead of
1783 a long double - Allen).
2d4389e4
JH
1784*/
1785#ifdef I_LIMITS
1786#include <limits.h>
1787#endif
1788#ifdef I_FLOAT
1789#include <float.h>
1790#endif
1791#ifndef HAS_DBL_DIG
1792#define DBL_DIG 15 /* A guess that works lots of places */
1793#endif
1794#endif
1795
1796#ifdef OVR_LDBL_DIG
1797/* Use an overridden LDBL_DIG */
1798# ifdef LDBL_DIG
1799# undef LDBL_DIG
1800# endif
1801# define LDBL_DIG OVR_LDBL_DIG
1802#else
1803/* The following is all to get LDBL_DIG, in order to pick a nice
1804 default value for printing floating point numbers in Gconvert.
1805 (see config.h)
1806*/
68d4903c
JH
1807# ifdef I_LIMITS
1808# include <limits.h>
1809# endif
1810# ifdef I_FLOAT
1811# include <float.h>
1812# endif
1813# ifndef HAS_LDBL_DIG
1814# if LONG_DOUBLESIZE == 10
1815# define LDBL_DIG 18 /* assume IEEE */
1816# else
1817# if LONG_DOUBLESIZE == 12
1818# define LDBL_DIG 18 /* gcc? */
1819# else
1820# if LONG_DOUBLESIZE == 16
1821# define LDBL_DIG 33 /* assume IEEE */
1822# else
1823# if LONG_DOUBLESIZE == DOUBLESIZE
1824# define LDBL_DIG DBL_DIG /* bummer */
1825# endif
1826# endif
1827# endif
1828# endif
1829# endif
2d4389e4
JH
1830#endif
1831
20f6aaab
AS
1832/*
1833 * This is for making sure we have a good DBL_MAX value, if possible,
1834 * either for usage as NV_MAX or for usage in figuring out if we can
1835 * fit a given long double into a double, if bug-fixing makes it
1836 * necessary to do so. - Allen <allens@cpan.org>
1837 */
1838
205f51d8
AS
1839#ifdef I_LIMITS
1840# include <limits.h>
20f6aaab
AS
1841#endif
1842
205f51d8
AS
1843#ifdef I_VALUES
1844# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1845# include <values.h>
1846# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1847# define DBL_MAX MAXDOUBLE
1848# endif
1849# if defined(MINDOUBLE) && !defined(DBL_MIN)
1850# define DBL_MIN MINDOUBLE
1851# endif
1852# endif
1853#endif /* defined(I_VALUES) */
1854
a22e52b9 1855typedef NVTYPE NV;
8175356b 1856
792d8dab
JH
1857#ifdef I_IEEEFP
1858# include <ieeefp.h>
1859#endif
923fc586 1860
c32c3de1
JH
1861#ifdef USING_MSVC6
1862/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1863 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1864# define NAN_COMPARE_BROKEN
1865#endif
1866#if defined(__DECC) && defined(__osf__)
1867/* Also Tru64 cc has broken NaN comparisons. */
1868# define NAN_COMPARE_BROKEN
c32c3de1
JH
1869#endif
1870
65202027 1871#ifdef USE_LONG_DOUBLE
923fc586
JH
1872# ifdef I_SUNMATH
1873# include <sunmath.h>
1874# endif
05b4a618
JH
1875# if defined(USE_QUADMATH) && defined(I_QUADMATH)
1876# include <quadmath.h>
d6c14000 1877# endif
05b4a618
JH
1878# ifdef FLT128_DIG
1879# define NV_DIG FLT128_DIG
1880# define NV_MANT_DIG FLT128_MANT_DIG
1881# define NV_MIN FLT128_MIN
1882# define NV_MAX FLT128_MAX
1883# define NV_MIN_EXP FLT128_MIN_EXP
1884# define NV_MAX_EXP FLT128_MAX_EXP
1885# define NV_EPSILON FLT128_EPSILON
1886# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1887# define NV_MAX_10_EXP FLT128_MAX_10_EXP
1888# define NV_INF HUGE_VALQ
1889# define NV_NAN nanq("0")
1890# elif defined(LDBL_DIG)
1891# define NV_DIG LDBL_DIG
1892# ifdef LDBL_MANT_DIG
1893# define NV_MANT_DIG LDBL_MANT_DIG
1894# endif
1895# ifdef LDBL_MIN
1896# define NV_MIN LDBL_MIN
1897# endif
1898# ifdef LDBL_MAX
1899# define NV_MAX LDBL_MAX
1900# endif
1901# ifdef LDBL_MIN_EXP
1902# define NV_MIN_EXP LDBL_MIN_EXP
1903# endif
1904# ifdef LDBL_MAX_EXP
1905# define NV_MAX_EXP LDBL_MAX_EXP
1906# endif
1907# ifdef LDBL_MIN_10_EXP
1908# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1909# endif
1910# ifdef LDBL_MAX_10_EXP
1911# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1912# endif
1913# ifdef LDBL_EPSILON
1914# define NV_EPSILON LDBL_EPSILON
1915# endif
1916# ifdef LDBL_MAX
1917# define NV_MAX LDBL_MAX
20f6aaab 1918/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1919# else
05b4a618
JH
1920# ifdef HUGE_VALL
1921# define NV_MAX HUGE_VALL
f4a14a62
JH
1922# endif
1923# endif
1924# endif
05b4a618
JH
1925# if defined(USE_QUADMATH) && defined(I_QUADMATH)
1926# define Perl_acos acosq
1927# define Perl_asin asinq
1928# define Perl_atan atanq
1929# define Perl_atan2 atan2q
1930# define Perl_ceil ceilq
1931# define Perl_cos cosq
1932# define Perl_cosh coshq
1933# define Perl_exp expq
1934/* no Perl_fabs, but there's PERL_ABS */
1935# define Perl_floor floorq
1936# define Perl_fmod fmodq
1937# define Perl_log logq
1938# define Perl_log10 log10q
1939# define Perl_pow powq
1940# define Perl_sin sinq
1941# define Perl_sinh sinhq
1942# define Perl_sqrt sqrtq
1943# define Perl_tan tanq
1944# define Perl_tanh tanhq
1945# define Perl_modf(x,y) modfq(x,y)
1946# define Perl_frexp(x,y) frexpq(x,y)
1947# define Perl_ldexp(x, y) ldexpq(x,y)
1948# define Perl_isinf(x) isinfq(x)
1949# define Perl_isnan(x) isnanq(x)
1950# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
1951# elif defined(HAS_SQRTL)
8a00eddc
JH
1952# define Perl_acos acosl
1953# define Perl_asin asinl
1954# define Perl_atan atanl
940e3d56
JH
1955# define Perl_atan2 atan2l
1956# define Perl_ceil ceill
1957# define Perl_cos cosl
8a00eddc 1958# define Perl_cosh coshl
940e3d56 1959# define Perl_exp expl
55da5e5b 1960/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1961# define Perl_floor floorl
1962# define Perl_fmod fmodl
1963# define Perl_log logl
8a00eddc 1964# define Perl_log10 log10l
940e3d56
JH
1965# define Perl_pow powl
1966# define Perl_sin sinl
8a00eddc 1967# define Perl_sinh sinhl
940e3d56 1968# define Perl_sqrt sqrtl
8a00eddc
JH
1969# define Perl_tan tanl
1970# define Perl_tanh tanhl
68d4903c 1971# endif
a3540c92 1972/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1973# ifndef Perl_modf
1974# ifdef HAS_MODFL
1975# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1976/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1977 prototype in <math.h> */
05b4a618 1978# ifndef HAS_MODFL_PROTO
a221a8a5 1979EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1980# endif
1981# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1982 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1983# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1984# endif
a3540c92 1985# endif
05b4a618
JH
1986# ifndef Perl_frexp
1987# ifdef HAS_FREXPL
1988# define Perl_frexp(x,y) frexpl(x,y)
1989# else
1990# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1991extern long double Perl_my_frexpl(long double x, int *e);
1992# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1993# endif
03476e8e 1994# endif
a3540c92 1995# endif
05b4a618
JH
1996# ifndef Perl_ldexp
1997# ifdef HAS_LDEXPL
1998# define Perl_ldexp(x, y) ldexpl(x,y)
1999# else
2000# if defined(HAS_SCALBNL) && FLT_RADIX == 2
2001# define Perl_ldexp(x,y) scalbnl(x,y)
2002# endif
98181445
JH
2003# endif
2004# endif
38dbb4c5 2005# ifndef Perl_isnan
e4c957f4 2006# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
2007# define Perl_isnan(x) isnanl(x)
2008# endif
2009# endif
2010# ifndef Perl_isinf
e4c957f4 2011# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 2012# define Perl_isinf(x) isinfl(x)
bcd8bfa9 2013# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2014# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
2015# endif
2016# endif
e38461cc
JH
2017# ifndef Perl_isfinite
2018# define Perl_isfinite(x) Perl_isfinitel(x)
2019# endif
65202027 2020#else
2d4389e4 2021# define NV_DIG DBL_DIG
d6c14000
JH
2022# ifdef DBL_MANT_DIG
2023# define NV_MANT_DIG DBL_MANT_DIG
2024# endif
06fc1729
JH
2025# ifdef DBL_MIN
2026# define NV_MIN DBL_MIN
2027# endif
2028# ifdef DBL_MAX
2029# define NV_MAX DBL_MAX
2030# endif
40bca5ae
JH
2031# ifdef DBL_MIN_EXP
2032# define NV_MIN_EXP DBL_MIN_EXP
2033# endif
2034# ifdef DBL_MAX_EXP
2035# define NV_MAX_EXP DBL_MAX_EXP
2036# endif
06fc1729
JH
2037# ifdef DBL_MIN_10_EXP
2038# define NV_MIN_10_EXP DBL_MIN_10_EXP
2039# endif
2040# ifdef DBL_MAX_10_EXP
2041# define NV_MAX_10_EXP DBL_MAX_10_EXP
2042# endif
2043# ifdef DBL_EPSILON
2044# define NV_EPSILON DBL_EPSILON
2045# endif
205f51d8 2046# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2047# define NV_MAX DBL_MAX
2048# define NV_MIN DBL_MIN
2049# else
2050# ifdef HUGE_VAL
2051# define NV_MAX HUGE_VAL
2052# endif
2053# endif
940e3d56 2054
55da5e5b 2055/* These math interfaces are C89. */
8a00eddc
JH
2056# define Perl_acos acos
2057# define Perl_asin asin
2058# define Perl_atan atan
940e3d56
JH
2059# define Perl_atan2 atan2
2060# define Perl_ceil ceil
2061# define Perl_cos cos
8a00eddc 2062# define Perl_cosh cosh
940e3d56 2063# define Perl_exp exp
55da5e5b 2064/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2065# define Perl_floor floor
2066# define Perl_fmod fmod
2067# define Perl_log log
8a00eddc 2068# define Perl_log10 log10
940e3d56
JH
2069# define Perl_pow pow
2070# define Perl_sin sin
8a00eddc 2071# define Perl_sinh sinh
940e3d56 2072# define Perl_sqrt sqrt
8a00eddc
JH
2073# define Perl_tan tan
2074# define Perl_tanh tanh
940e3d56
JH
2075
2076# define Perl_modf(x,y) modf(x,y)
2077# define Perl_frexp(x,y) frexp(x,y)
2078# define Perl_ldexp(x,y) ldexp(x,y)
2079
1a322af2
JH
2080# ifndef Perl_isnan
2081# ifdef HAS_ISNAN
2082# define Perl_isnan(x) isnan(x)
2083# endif
2084# endif
2085# ifndef Perl_isinf
2086# if defined(HAS_ISINF)
2087# define Perl_isinf(x) isinf(x)
bcd8bfa9 2088# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2089# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2090# endif
2091# endif
2092# ifndef Perl_isfinite
2093# ifdef HAS_ISFINITE
2094# define Perl_isfinite(x) isfinite(x)
2095# elif defined(HAS_FINITE)
2096# define Perl_isfinite(x) finite(x)
2097# endif
2098# endif
758a5d79
JH
2099#endif
2100
30404d48
JH
2101/* fpclassify(): C99. It is supposed to be a macro that switches on
2102* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2103#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2104# include <math.h>
25c46df8
JH
2105# if defined(FP_INFINITE) && defined(FP_NAN)
2106# define Perl_fp_class(x) fpclassify(x)
2107# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2108# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2109# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2110# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2111# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2112# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2113/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2114 * actually not the C99 fpclassify, with its own set of return defines. */
2115# define Perl_fp_class(x) fpclassify(x)
2116# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2117# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2118# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2119# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2120# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2121# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2122# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2123# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2124# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2125# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2126# else
2127# undef Perl_fp_class /* Unknown set of defines */
2128# endif
30404d48
JH
2129#endif
2130
25c46df8
JH
2131/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2132 * are identical to the C99 fpclassify(). */
2133#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2134# include <math.h>
558f3e66
CB
2135# ifdef __VMS
2136 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2137# include <fp.h>
56610b8f
CB
2138 /* oh, and the isnormal macro has a typo in it! */
2139# undef isnormal
2140# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2141# endif
25c46df8
JH
2142# if defined(FP_INFINITE) && defined(FP_NAN)
2143# define Perl_fp_class(x) fp_classify(x)
2144# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2145# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2146# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2147# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2148# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2149# else
2150# undef Perl_fp_class /* Unknown set of defines */
2151# endif
f279e099 2152#endif
205f51d8 2153
30404d48
JH
2154/* Feel free to check with me for the SGI manpages, SGI testing,
2155 * etcetera, if you want to try getting this to work with IRIX.
2156 *
2157 * - Allen <allens@cpan.org> */
2158
2159/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2160#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2161/* Solaris and IRIX have fpclass/fpclassl, but they are using
2162 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2163 * Define some symbols also as cpp symbols so we can detect them. */
2164# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2165# define FP_PINF FP_PINF
2166# define FP_QNAN FP_QNAN
2167# endif
f279e099 2168# include <math.h>
758a5d79
JH
2169# ifdef I_IEEFP
2170# include <ieeefp.h>
2171# endif
2172# ifdef I_FP
2173# include <fp.h>
2174# endif
2175# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2176# define Perl_fp_class(x) fpclassl(x)
758a5d79 2177# else
f279e099
JH
2178# define Perl_fp_class(x) fpclass(x)
2179# endif
25c46df8 2180# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2181# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2182# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2183# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2184# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2185# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2186# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2187# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2188# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2189# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2190# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2191# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2192# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2193# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2194# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2195# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2196# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2197# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2198# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2199# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2200# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2201# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2202# else
2203# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2204# endif
758a5d79
JH
2205#endif
2206
30404d48
JH
2207/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2208#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2209# include <math.h>
2210# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2211# include <fp_class.h>
2212# endif
25c46df8
JH
2213# if defined(FP_POS_INF) && defined(FP_QNAN)
2214# ifdef __irix__ /* XXX Configure test instead */
2215# ifdef USE_LONG_DOUBLE
2216# define Perl_fp_class(x) fp_class_l(x)
2217# else
2218# define Perl_fp_class(x) fp_class_d(x)
2219# endif
f279e099 2220# else
25c46df8
JH
2221# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2222# define Perl_fp_class(x) fp_classl(x)
2223# else
2224# define Perl_fp_class(x) fp_class(x)
2225# endif
f279e099 2226# endif
25c46df8
JH
2227# if defined(FP_POS_INF) && defined(FP_QNAN)
2228# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2229# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2230# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2231# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2232# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2233# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2234# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2235# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2236# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2237# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2238# else
25c46df8 2239# undef Perl_fp_class /* Unknown set of defines */
30404d48 2240# endif
f279e099 2241# endif
30404d48
JH
2242#endif
2243
052758ae 2244/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2245#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2246# include <math.h>
25c46df8
JH
2247# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2248# ifndef _cplusplus
2249# define Perl_fp_class(x) class(x)
2250# else
2251# define Perl_fp_class(x) _class(x)
2252# endif
2253# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2254# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2255# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2256# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2257# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2258# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2259# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2260# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2261# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2262# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2263# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2264# else
2265# undef Perl_fp_class /* Unknown set of defines */
2266# endif
758a5d79 2267# endif
30404d48
JH
2268#endif
2269
2270/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2271#ifdef WIN32
2272# ifndef Perl_isnan
2273# define Perl_isnan(x) _isnan(x)
2274# endif
2275# ifndef Perl_isfinite
2276# define Perl_isfinite(x) _finite(x)
2277# endif
2278# ifndef Perl_fp_class_snan
25c46df8
JH
2279/* No simple way to #define Perl_fp_class because _fpclass()
2280 * returns a set of bits. */
796ea9ea
JH
2281# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2282# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2283# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2284# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2285# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2286# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2287# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2288# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2289# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2290# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2291# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2292# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2293# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2294# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2295# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2296# endif
f279e099
JH
2297#endif
2298
2299#if !defined(Perl_fp_class_inf) && \
2300 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2301# define Perl_fp_class_inf(x) \
2302 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2303#endif
2304
2305#if !defined(Perl_fp_class_nan) && \
2306 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2307# define Perl_fp_class_nan(x) \
2308 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2309#endif
2310
2311#if !defined(Perl_fp_class_zero) && \
2312 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2313# define Perl_fp_class_zero(x) \
2314 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2315#endif
2316
2317#if !defined(Perl_fp_class_norm) && \
2318 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2319# define Perl_fp_class_norm(x) \
2320 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2321#endif
2322
2323#if !defined(Perl_fp_class_denorm) && \
2324 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2325# define Perl_fp_class_denorm(x) \
2326 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2327#endif
758a5d79 2328
1a322af2
JH
2329#ifdef UNDER_CE
2330int isnan(double d);
2331#endif
2332
758a5d79 2333#ifndef Perl_isnan
1a322af2
JH
2334# ifdef Perl_fp_class_nan
2335# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2336# else
1a322af2
JH
2337# ifdef HAS_UNORDERED
2338# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2339# else
1a322af2 2340# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2341# endif
2342# endif
2343#endif
2344
1a322af2
JH
2345#ifndef Perl_isinf
2346# ifdef Perl_fp_class_inf
2347# define Perl_isinf(x) Perl_fp_class_inf(x)
2348# endif
ca6c63e1
JH
2349#endif
2350
758a5d79 2351#ifndef Perl_isfinite
25c46df8 2352# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2353# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2354# elif defined(HAS_FINITE)
c496ca58 2355# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2356# elif defined(Perl_fp_class_finite)
2357# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2358# else
c496ca58
JH
2359/* For the infinities the multiplication returns nan,
2360 * for the nan the multiplication also returns nan,
2361 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2362# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2363# endif
65202027
DS
2364#endif
2365
25c46df8
JH
2366#ifndef Perl_isinf
2367# if defined(Perl_isfinite) && defined(Perl_isnan)
2368# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2369# endif
2370#endif
2371
d3685250
JH
2372/* We need Perl_isfinitel (ends with ell) (if available) even when
2373 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2374 * needs that. */
2375#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2376/* If isfinite() is a macro and looks like we have C99,
2377 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2378# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2379# define Perl_isfinitel(x) isfinite(x)
2380# elif defined(HAS_ISFINITEL)
2381# define Perl_isfinitel(x) isfinitel(x)
2382# elif defined(HAS_FINITEL)
2383# define Perl_isfinitel(x) finitel(x)
2384# elif defined(HAS_INFL) && defined(HAS_NANL)
2385# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2386# else
99bf9e32 2387# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2388# endif
2389#endif
2390
a36244b7
JH
2391/* The default is to use Perl's own atof() implementation (in numeric.c).
2392 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2393 * it is however best to use the native implementation of atof.
2394 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2395 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2396 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2397 * you may need to be using a different function than atof! */
a36244b7
JH
2398
2399#ifndef USE_PERL_ATOF
2400# ifndef _UNICOS
2401# define USE_PERL_ATOF
2402# endif
2403#else
2404# if USE_PERL_ATOF == 0
2405# undef USE_PERL_ATOF
2406# endif
2407#endif
2408
2409#ifdef USE_PERL_ATOF
2410# define Perl_atof(s) Perl_my_atof(s)
2411# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2412#else
2413# define Perl_atof(s) (NV)atof(s)
2414# define Perl_atof2(s, n) ((n) = atof(s))
2415#endif
cf2093f6 2416
d460ef45 2417/* Previously these definitions used hardcoded figures.
760ac839
LW
2418 * It is hoped these formula are more portable, although
2419 * no data one way or another is presently known to me.
2420 * The "PERL_" names are used because these calculated constants
2421 * do not meet the ANSI requirements for LONG_MAX, etc., which
2422 * need to be constants acceptable to #if - kja
2423 * define PERL_LONG_MAX 2147483647L
2424 * define PERL_LONG_MIN (-LONG_MAX - 1)
2425 * define PERL ULONG_MAX 4294967295L
2426 */
2427
2428#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2429# include <limits.h>
760ac839 2430#endif
205f51d8 2431/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2432 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2433
99abf803
PP
2434/*
2435 * Try to figure out max and min values for the integral types. THE CORRECT
2436 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2437 * following hacks are used if neither limits.h or values.h provide them:
2438 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2439 * for types < int: (unsigned TYPE)~(unsigned)0
2440 * The argument to ~ must be unsigned so that later signed->unsigned
2441 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2442 * and it must not be smaller than int because ~ does integral promotion.
2443 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2444 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2445 * The latter is a hack which happens to work on some machines but
2446 * does *not* catch any random system, or things like integer types
2447 * with NaN if that is possible.
2448 *
2449 * All of the types are explicitly cast to prevent accidental loss of
2450 * numeric range, and in the hope that they will be less likely to confuse
2451 * over-eager optimizers.
2452 *
2453 */
27d4fb96 2454
99abf803
PP
2455#define PERL_UCHAR_MIN ((unsigned char)0)
2456
2457#ifdef UCHAR_MAX
2458# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2459#else
99abf803
PP
2460# ifdef MAXUCHAR
2461# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2462# else
99abf803 2463# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2464# endif
2465#endif
d460ef45 2466
99abf803
PP
2467/*
2468 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2469 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2470 * depending on local options. Until Configure detects this (or at least
2471 * detects whether the "signed" keyword is available) the CHAR ranges
2472 * will not be included. UCHAR functions normally.
2473 * - kja
2474 */
27d4fb96 2475
99abf803
PP
2476#define PERL_USHORT_MIN ((unsigned short)0)
2477
2478#ifdef USHORT_MAX
2479# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2480#else
99abf803
PP
2481# ifdef MAXUSHORT
2482# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2483# else
ef2f54b0
CB
2484# ifdef USHRT_MAX
2485# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2486# else
2487# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2488# endif
27d4fb96
PP
2489# endif
2490#endif
2491
27d4fb96 2492#ifdef SHORT_MAX
99abf803 2493# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2494#else
2495# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2496# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2497# else
ef2f54b0
CB
2498# ifdef SHRT_MAX
2499# define PERL_SHORT_MAX ((short)SHRT_MAX)
2500# else
2501# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2502# endif
27d4fb96
PP
2503# endif
2504#endif
2505
2506#ifdef SHORT_MIN
99abf803 2507# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2508#else
2509# ifdef MINSHORT
99abf803 2510# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2511# else
ef2f54b0
CB
2512# ifdef SHRT_MIN
2513# define PERL_SHORT_MIN ((short)SHRT_MIN)
2514# else
2515# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2516# endif
27d4fb96
PP
2517# endif
2518#endif
2519
99abf803
PP
2520#ifdef UINT_MAX
2521# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2522#else
99abf803
PP
2523# ifdef MAXUINT
2524# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2525# else
99abf803 2526# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2527# endif
2528#endif
2529
99abf803 2530#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2531
2532#ifdef INT_MAX
99abf803 2533# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2534#else
2535# ifdef MAXINT /* Often used in <values.h> */
99abf803 2536# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2537# else
99abf803 2538# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2539# endif
2540#endif
2541
2542#ifdef INT_MIN
99abf803 2543# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2544#else
2545# ifdef MININT
99abf803 2546# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2547# else
2548# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2549# endif
2550#endif
2551
99abf803
PP
2552#ifdef ULONG_MAX
2553# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2554#else
99abf803
PP
2555# ifdef MAXULONG
2556# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2557# else
99abf803 2558# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2559# endif
2560#endif
2561
99abf803 2562#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2563
760ac839 2564#ifdef LONG_MAX
99abf803 2565# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2566#else
2567# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2568# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2569# else
99abf803 2570# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2571# endif
2572#endif
2573
2574#ifdef LONG_MIN
99abf803 2575# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2576#else
2577# ifdef MINLONG
99abf803 2578# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2579# else
27d4fb96 2580# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2581# endif
2582#endif
2583
d7d93a81 2584#ifdef UV_IS_QUAD
99abf803 2585
99abf803 2586# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2587# define PERL_UQUAD_MIN ((UV)0)
99abf803 2588# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2589# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2590
79072805
LW
2591#endif
2592
ee0007ab 2593typedef MEM_SIZE STRLEN;
450a55e4 2594
79072805
LW
2595typedef struct op OP;
2596typedef struct cop COP;
2597typedef struct unop UNOP;
2598typedef struct binop BINOP;
2599typedef struct listop LISTOP;
2600typedef struct logop LOGOP;
79072805
LW
2601typedef struct pmop PMOP;
2602typedef struct svop SVOP;
7934575e 2603typedef struct padop PADOP;
79072805 2604typedef struct pvop PVOP;
79072805 2605typedef struct loop LOOP;
b46e009d 2606typedef struct methop METHOP;
79072805 2607
7aef8e5b 2608#ifdef PERL_CORE
8be227ab
FC
2609typedef struct opslab OPSLAB;
2610typedef struct opslot OPSLOT;
2611#endif
2612
52db365a 2613typedef struct block_hooks BHK;
1830b3d9 2614typedef struct custom_op XOP;
52db365a 2615
cd1541b2
NC
2616typedef struct interpreter PerlInterpreter;
2617
d2b3f365 2618/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2619#if defined(__sgi)
d2b3f365 2620# define STRUCT_SV perl_sv
b8d3c5db
JH
2621#else
2622# define STRUCT_SV sv
2623#endif
2624typedef struct STRUCT_SV SV;
79072805
LW
2625typedef struct av AV;
2626typedef struct hv HV;
2627typedef struct cv CV;
d2f13c59 2628typedef struct p5rx REGEXP;
79072805 2629typedef struct gp GP;
0c30d9ec 2630typedef struct gv GV;
8990e307 2631typedef struct io IO;
c09156bb 2632typedef struct context PERL_CONTEXT;
79072805
LW
2633typedef struct block BLOCK;
2634
2635typedef struct magic MAGIC;
2636typedef struct xpv XPV;
2637typedef struct xpviv XPVIV;
ff68c719 2638typedef struct xpvuv XPVUV;
79072805
LW
2639typedef struct xpvnv XPVNV;
2640typedef struct xpvmg XPVMG;
2641typedef struct xpvlv XPVLV;
d361b004 2642typedef struct xpvinvlist XINVLIST;
79072805
LW
2643typedef struct xpvav XPVAV;
2644typedef struct xpvhv XPVHV;
2645typedef struct xpvgv XPVGV;
2646typedef struct xpvcv XPVCV;
2647typedef struct xpvbm XPVBM;
2648typedef struct xpvfm XPVFM;
8990e307 2649typedef struct xpvio XPVIO;
79072805
LW
2650typedef struct mgvtbl MGVTBL;
2651typedef union any ANY;
5f7fde29
GS
2652typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2653typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2654typedef struct clone_params CLONE_PARAMS;
2655
35e035cc 2656/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2657 * so hide the type. */
2658typedef struct padlist PADLIST;
67634234 2659typedef AV PAD;
35e035cc
FC
2660typedef AV PADNAMELIST;
2661typedef SV PADNAME;
67634234 2662
13b0f67d
DM
2663/* enable PERL_NEW_COPY_ON_WRITE by default */
2664#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2665# define PERL_NEW_COPY_ON_WRITE
2666#endif
07d01d6e 2667
db2c6cb3
FC
2668#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2669# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2670# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2671# else
2672# define PERL_ANY_COW
2673# endif
9f351b45
DM
2674#else
2675# define PERL_SAWAMPERSAND
db2c6cb3
FC
2676#endif
2677
40653c20
FC
2678#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2679# error PERL_DEBUG_READONLY_OPS only works with ithreads
2680#endif
2681
378cc40b 2682#include "handy.h"
a0d0e21e 2683
6b8eaf93 2684#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2685# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2686# define USE_64_BIT_RAWIO /* implicit */
2687# endif
4564133c
JH
2688#endif
2689
6b8eaf93
JH
2690/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2691 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2692 * however, because operating systems like to do that themself. */
2693#ifndef FSEEKSIZE
2694# ifdef HAS_FSEEKO
2695# define FSEEKSIZE LSEEKSIZE
2696# else
2697# define FSEEKSIZE LONGSIZE
d460ef45 2698# endif
6b8eaf93
JH
2699#endif
2700
2701#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2702# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2703# define USE_64_BIT_STDIO /* implicit */
2704# endif
2705#endif
4564133c 2706
09458382 2707#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2708# ifdef HAS_OFF64_T
2709# undef Off_t
2710# define Off_t off64_t
2711# undef LSEEKSIZE
2712# define LSEEKSIZE 8
5ff3f7a4 2713# endif
d9b3e12d
JH
2714/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2715 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2716 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2717# if defined(USE_OPEN64)
2718# define open open64
5ff3f7a4 2719# endif
d9b3e12d
JH
2720# if defined(USE_LSEEK64)
2721# define lseek lseek64
6b8eaf93
JH
2722# else
2723# if defined(USE_LLSEEK)
2724# define lseek llseek
2725# endif
d9b3e12d
JH
2726# endif
2727# if defined(USE_STAT64)
2728# define stat stat64
2729# endif
2730# if defined(USE_FSTAT64)
2731# define fstat fstat64
2732# endif
2733# if defined(USE_LSTAT64)
2734# define lstat lstat64
2735# endif
2736# if defined(USE_FLOCK64)
2737# define flock flock64
2738# endif
2739# if defined(USE_LOCKF64)
2740# define lockf lockf64
2741# endif
2742# if defined(USE_FCNTL64)
2743# define fcntl fcntl64
2744# endif
2745# if defined(USE_TRUNCATE64)
2746# define truncate truncate64
2747# endif
2748# if defined(USE_FTRUNCATE64)
2749# define ftruncate ftruncate64
2750# endif
2751#endif
2752
2753#ifdef USE_64_BIT_STDIO
2754# ifdef HAS_FPOS64_T
2755# undef Fpos_t
2756# define Fpos_t fpos64_t
2757# endif
2758/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2759 * will trigger defines like the ones below. Some 64-bit environments,
2760 * however, do not. */
2761# if defined(USE_FOPEN64)
2762# define fopen fopen64
2763# endif
2764# if defined(USE_FSEEK64)
6b8eaf93 2765# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2766# endif
2767# if defined(USE_FTELL64)
6b8eaf93 2768# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2769# endif
2770# if defined(USE_FSETPOS64)
2771# define fsetpos fsetpos64
2772# endif
2773# if defined(USE_FGETPOS64)
2774# define fgetpos fgetpos64
2775# endif
2776# if defined(USE_TMPFILE64)
2777# define tmpfile tmpfile64
2778# endif
2779# if defined(USE_FREOPEN64)
2780# define freopen freopen64
5ff3f7a4
GS
2781# endif
2782#endif
2783
e37778c2 2784#if defined(OS2)
2c2d71f5
JH
2785# include "iperlsys.h"
2786#endif
2787
748a9306 2788#ifdef DOSISH
19848b3f
JH
2789# if defined(OS2)
2790# include "os2ish.h"
2791# else
2792# include "dosish.h"
2793# endif
009819bb 2794#elif defined(VMS)
748a9306 2795# include "vmsish.h"
009819bb 2796#elif defined(PLAN9)
19848b3f 2797# include "./plan9/plan9ish.h"
009819bb 2798#elif defined(__VOS__)
196918b0
PG
2799# ifdef __GNUC__
2800# include "./vos/vosish.h"
2801# else
2802# include "vos/vosish.h"
2803# endif
009819bb 2804#elif defined(__SYMBIAN32__)
27da23d5 2805# include "symbian/symbianish.h"
009819bb 2806#elif defined(__HAIKU__)
df00ff3b 2807# include "haiku/haikuish.h"
009819bb 2808#else
19848b3f 2809# include "unixish.h"
13b6e58c
JH
2810#endif
2811
2946a158
JH
2812/* NSIG logic from Configure --> */
2813/* Strange style to avoid deeply-nested #if/#else/#endif */
2814#ifndef NSIG
2815# ifdef _NSIG
2816# define NSIG (_NSIG)
2817# endif
2818#endif
2819
2820#ifndef NSIG
2821# ifdef SIGMAX
2822# define NSIG (SIGMAX+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 _SIG_MAX
2834# define NSIG (_SIG_MAX+1)
2835# endif
2836#endif
2837
2838#ifndef NSIG
2839# ifdef MAXSIG
2840# define NSIG (MAXSIG+1)
2841# endif
2842#endif
2843
2844#ifndef NSIG
2845# ifdef MAX_SIG
2846# define NSIG (MAX_SIG+1)
2847# endif
2848#endif
2849
2850#ifndef NSIG
2851# ifdef SIGARRAYSIZE
2852# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2853# endif
2854#endif
2855
2856#ifndef NSIG
2857# ifdef _sys_nsig
2858# define NSIG (_sys_nsig) /* Solaris 2.5 */
2859# endif
2860#endif
2861
2862/* Default to some arbitrary number that's big enough to get most
2863 of the common signals.
2864*/
2865#ifndef NSIG
2866# define NSIG 50
2867#endif
2868/* <-- NSIG logic from Configure */
2869
13b6e58c
JH
2870#ifndef NO_ENVIRON_ARRAY
2871# define USE_ENVIRON_ARRAY
2872#endif
32f822de 2873
c77b533b
JH
2874/*
2875 * initialise to avoid floating-point exceptions from overflow, etc
2876 */
2877#ifndef PERL_FPU_INIT
2878# ifdef HAS_FPSETMASK
2879# if HAS_FLOATINGPOINT_H
2880# include <floatingpoint.h>
2881# endif
ad3a8c67
NC
2882/* Some operating systems have this as a macro, which in turn expands to a comma
2883 expression, and the last sub-expression is something that gets calculated,
2884 and then they have the gall to warn that a value computed is not used. Hence
2885 cast to void. */
2886# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2887# else
2f42fcb0 2888# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2889# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2890# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2891# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2892# else
2893# define PERL_FPU_INIT
2f42fcb0 2894
7014c407 2895# endif
c77b533b
JH
2896# endif
2897#endif
b35112e7
CS
2898#ifndef PERL_FPU_PRE_EXEC
2899# define PERL_FPU_PRE_EXEC {
2900# define PERL_FPU_POST_EXEC }
2901#endif
c77b533b 2902
a308b05a
JH
2903/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2904 * We need to reenable the "invalid" trap because otherwise generation
2905 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2906 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2907#ifdef __osf__
2908# include <machine/fpu.h>
2909# define PERL_SYS_FPU_INIT \
2910 STMT_START { \
2911 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2912 signal(SIGFPE, SIG_IGN); \
2913 } STMT_END
2914#endif
2915
2916#ifndef PERL_SYS_FPU_INIT
2917# define PERL_SYS_FPU_INIT NOOP
2918#endif
2919
cbec8ebe
DM
2920#ifndef PERL_SYS_INIT3_BODY
2921# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2922#endif
2923
eb533572 2924/*
dcccc8ff
KW
2925=head1 Miscellaneous Functions
2926
4ad9e498 2927=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2928Provides system-specific tune up of the C runtime environment necessary to
72d33970 2929run Perl interpreters. This should be called only once, before creating
eb533572
DM
2930any Perl interpreters.
2931
4ad9e498 2932=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2933Provides system-specific tune up of the C runtime environment necessary to
72d33970 2934run Perl interpreters. This should be called only once, before creating
eb533572
DM
2935any Perl interpreters.
2936
2937=for apidoc Am|void|PERL_SYS_TERM|
2938Provides system-specific clean up of the C runtime environment after
72d33970 2939running Perl interpreters. This should be called only once, after
eb533572
DM
2940freeing any remaining Perl interpreters.
2941
2942=cut
2943 */
2944
cbec8ebe
DM
2945#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2946#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2947#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2948
be708cc0
JH
2949#ifndef PERL_WRITE_MSG_TO_CONSOLE
2950# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2951#endif
2952
0f31cffe
GS
2953#ifndef MAXPATHLEN
2954# ifdef PATH_MAX
b990c8b2
JH
2955# ifdef _POSIX_PATH_MAX
2956# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2957/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2958 * included the null byte or not. Later amendments of POSIX,
2959 * XPG4, the Austin Group, and the Single UNIX Specification
2960 * all explicitly include the null byte in the PATH_MAX.
2961 * Ditto for _POSIX_PATH_MAX. */
2962# define MAXPATHLEN PATH_MAX
b990c8b2 2963# else
09448d78 2964# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2965# endif
2966# else
2967# define MAXPATHLEN (PATH_MAX+1)
2968# endif
0f31cffe 2969# else
d552bce8 2970# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2971# endif
2972#endif
2973
c80263a8
SH
2974/* In case Configure was not used (we are using a "canned config"
2975 * such as Win32, or a cross-compilation setup, for example) try going
2976 * by the gcc major and minor versions. One useful URL is
2977 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2978 * but contrary to this information warn_unused_result seems
2979 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2980 * Also, when building extensions with an installed perl, this allows
2981 * the user to upgrade gcc and get the right attributes, rather than
2982 * relying on the list generated at Configure time. --AD
c80263a8
SH
2983 * Set these up now otherwise we get confused when some of the <*thread.h>
2984 * includes below indirectly pull in <perlio.h> (which needs to know if we
2985 * have HASATTRIBUTE_FORMAT).
2986 */
2987
4d7c7898 2988#ifndef PERL_MICRO
fc2007d4 2989#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2990# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2991# define HASATTRIBUTE_DEPRECATED
2992# endif
c80263a8
SH
2993# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2994# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2995# if defined __MINGW32__
2996# define PRINTF_FORMAT_NULL_OK
2997# endif
c80263a8
SH
2998# endif
2999# if __GNUC__ >= 3 /* 3.0 -> */
3000# define HASATTRIBUTE_MALLOC
3001# endif
3002# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3003# define HASATTRIBUTE_NONNULL
3004# endif
3005# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3006# define HASATTRIBUTE_NORETURN
3007# endif
3008# if __GNUC__ >= 3 /* gcc 3.0 -> */
3009# define HASATTRIBUTE_PURE
3010# endif
42bf5550 3011# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
3012# define HASATTRIBUTE_UNUSED
3013# endif
d324fe49
AD
3014# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3015# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3016# endif
c80263a8
SH
3017# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3018# define HASATTRIBUTE_WARN_UNUSED_RESULT
3019# endif
3020#endif
00f254e2 3021#endif /* #ifndef PERL_MICRO */
c80263a8 3022
3db8f154 3023/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3024 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
3025 * this results in many functions being undeclared which bothers C++
3026 * May make sense to have threads after "*ish.h" anyway
3027 */
3028
3db8f154 3029#if defined(USE_ITHREADS)
2986a63f
JH
3030# ifdef NETWARE
3031# include <nw5thread.h>
3032# else
32f822de
GS
3033# ifdef WIN32
3034# include <win32thread.h>
3035# else
dd96f567
IZ
3036# ifdef OS2
3037# include "os2thread.h"
3038# else
7f3d1cf1 3039# ifdef I_MACH_CTHREADS
bdd66968 3040# include <mach/cthreads.h>
7f3d1cf1
BH
3041typedef cthread_t perl_os_thread;
3042typedef mutex_t perl_mutex;
3043typedef condition_t perl_cond;
3044typedef void * perl_key;
3045# else /* Posix threads */
1f5ae88c
JH
3046# ifdef I_PTHREAD
3047# include <pthread.h>
3048# endif
7f3d1cf1
BH
3049typedef pthread_t perl_os_thread;
3050typedef pthread_mutex_t perl_mutex;
3051typedef pthread_cond_t perl_cond;
3052typedef pthread_key_t perl_key;
3053# endif /* I_MACH_CTHREADS */
dd96f567 3054# endif /* OS2 */
32f822de 3055# endif /* WIN32 */
ef4abe76 3056# endif /* NETWARE */
3db8f154 3057#endif /* USE_ITHREADS */
c5be433b 3058
66a93824 3059#if defined(WIN32)
1feb2720 3060# include "win32.h"
c5be433b
GS
3061#endif
3062
2986a63f
JH
3063#ifdef NETWARE
3064# include "netware.h"
3065#endif
3066
e5218da5 3067#define STATUS_UNIX PL_statusvalue
68dc0745 3068#ifdef VMS
6b88bc9c 3069# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3070/*
3071 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3072 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3073 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3074 * be updated also.
3075 */
3076# include <stsdef.h>
3077# include <ssdef.h>
3078/* Presume this because if VMS changes it, it will require a new
3079 * set of APIs for waiting on children for binary compatibility.
3080 */
3081# define child_offset_bits (8)
3082# ifndef C_FAC_POSIX
3083# define C_FAC_POSIX 0x35A000
3084# endif
3085
3086/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3087 * platform from the existing UNIX or Native status values.
3088 */
3089
37038d91 3090# define STATUS_EXIT \
7a7fd8e0
JM
3091 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3092 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3093
7a7fd8e0 3094
fb38d079
JM
3095/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3096 * exit code and shifts the UNIX value over the correct number of bits to
3097 * be a child status. Usually the number of bits is 8, but that could be
3098 * platform dependent. The NATIVE status code is presumed to have either
3099 * from a child process.
7a7fd8e0
JM
3100 */
3101
fb38d079
JM
3102/* This is complicated. The child processes return a true native VMS
3103 status which must be saved. But there is an assumption in Perl that
3104 the UNIX child status has some relationship to errno values, so
00f254e2 3105 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3106 In order to get the string translation correct, for the error, errno
3107 must be EVMSERR, but that generates a different text message
3108 than what the test programs are expecting. So an errno value must
3109 be derived from the native status value when an error occurs.
3110 That will hide the true native status message. With this version of
3111 perl, the true native child status can always be retrieved so that
3112 is not a problem. But in this case, Pl_statusvalue and errno may
3113 have different values in them.
3114 */
7a7fd8e0 3115
fb38d079 3116# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3117 STMT_START { \
2fbb330f
JM
3118 I32 evalue = (I32)n; \
3119 if (evalue == EVMSERR) { \
3120 PL_statusvalue_vms = vaxc$errno; \
3121 PL_statusvalue = evalue; \
7a7fd8e0 3122 } else { \
2fbb330f 3123 PL_statusvalue_vms = evalue; \
fb38d079 3124 if (evalue == -1) { \
3280af22 3125 PL_statusvalue = -1; \
7a7fd8e0
JM
3126 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3127 } else \
fb38d079 3128 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3129 set_vaxc_errno(evalue); \
fb38d079
JM
3130 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3131 set_errno(EVMSERR); \
3132 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3133 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3134 } \
68dc0745 3135 } STMT_END
7a7fd8e0 3136
68dc0745 3137# ifdef VMSISH_STATUS
e5218da5 3138# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3139# else
e5218da5 3140# define STATUS_CURRENT STATUS_UNIX
68dc0745 3141# endif
7a7fd8e0
JM
3142
3143 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3144 * the NATIVE status to an equivalent value. Can not be used to translate
3145 * exit code values as exit code values are not guaranteed to have any
3146 * relationship at all to errno values.
3147 * This is used when Perl is forcing errno to have a specific value.
3148 */
e5218da5 3149# define STATUS_UNIX_SET(n) \
68dc0745 3150 STMT_START { \
7a7fd8e0 3151 I32 evalue = (I32)n; \
0968cdad 3152 PL_statusvalue = evalue; \
3280af22 3153 if (PL_statusvalue != -1) { \
0968cdad
JM
3154 if (PL_statusvalue != EVMSERR) { \
3155 PL_statusvalue &= 0xFFFF; \
3156 if (MY_POSIX_EXIT) \
3157 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3158 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3159 } \
3160 else { \
3161 PL_statusvalue_vms = vaxc$errno; \
3162 } \
68dc0745 3163 } \
0968cdad
JM
3164 else PL_statusvalue_vms = SS$_ABORT; \
3165 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3166 } STMT_END
3167
3168 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3169 * the NATIVE error status based on it.
3170 *
3171 * When in the default mode to comply with the Perl VMS documentation,
3172 * 0 is a success and any other code sets the NATIVE status to a failure
3173 * code of SS$_ABORT.
fb38d079
JM
3174 *
3175 * In the new POSIX EXIT mode, native status will be set so that the
3176 * actual exit code will can be retrieved by the calling program or
3177 * shell.
3178 *
3179 * If the exit code is not clearly a UNIX parent or child exit status,
3180 * it will be passed through as a VMS status.
7a7fd8e0
JM
3181 */
3182
fb38d079 3183# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3184 STMT_START { \
3185 I32 evalue = (I32)n; \
3186 PL_statusvalue = evalue; \
e08e1e1d
JM
3187 if (MY_POSIX_EXIT) { \
3188 if (evalue <= 0xFF00) { \
3189 if (evalue > 0xFF) \
3190 evalue = (evalue >> child_offset_bits) & 0xFF; \
3191 PL_statusvalue_vms = \
3192 (C_FAC_POSIX | (evalue << 3 ) | \
3193 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3194 } else /* forgive them Perl, for they have sinned */ \
3195 PL_statusvalue_vms = evalue; \
3196 } else { \
3197 if (evalue == 0) \
3198 PL_statusvalue_vms = SS$_NORMAL; \
3199 else if (evalue <= 0xFF00) \
3200 PL_statusvalue_vms = SS$_ABORT; \
3201 else { /* forgive them Perl, for they have sinned */ \
3202 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3203 else PL_statusvalue_vms = vaxc$errno; \
3204 /* And obviously used a VMS status value instead of UNIX */ \
3205 PL_statusvalue = EVMSERR; \
3206 } \
3207 set_vaxc_errno(PL_statusvalue_vms); \
3208 } \
68dc0745 3209 } STMT_END
fb38d079 3210
e08e1e1d 3211
6ac6a52b
JM
3212 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3213 * and sets the NATIVE error status based on it. This special case
3214 * is needed to maintain compatibility with past VMS behavior.
3215 *
3216 * In the default mode on VMS, this number is passed through as
3217 * both the NATIVE and UNIX status. Which makes it different
3218 * that the STATUS_UNIX_EXIT_SET.
3219 *
3220 * In the new POSIX EXIT mode, native status will be set so that the
3221 * actual exit code will can be retrieved by the calling program or
3222 * shell.
3223 *
1a3aec58
JM
3224 * A POSIX exit code is from 0 to 255. If the exit code is higher
3225 * than this, it needs to be assumed that it is a VMS exit code and
3226 * passed through.
6ac6a52b
JM
3227 */
3228
3229# define STATUS_EXIT_SET(n) \
3230 STMT_START { \
3231 I32 evalue = (I32)n; \
3232 PL_statusvalue = evalue; \
3233 if (MY_POSIX_EXIT) \
1a3aec58
JM
3234 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3235 PL_statusvalue_vms = \
3236 (C_FAC_POSIX | (evalue << 3 ) | \
3237 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3238 else \
3239 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3240 set_vaxc_errno(PL_statusvalue_vms); \
3241 } STMT_END
3242
fb38d079
JM
3243
3244 /* This macro forces a success status */
7a7fd8e0
JM
3245# define STATUS_ALL_SUCCESS \
3246 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3247
3248 /* This macro forces a failure status */
7a7fd8e0
JM
3249# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3250 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3251 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3252
68dc0745 3253#else
e5218da5 3254# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3255# if defined(WCOREDUMP)
37038d91 3256# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3257 STMT_START { \
3258 PL_statusvalue_posix = (n); \
3259 if (PL_statusvalue_posix == -1) \
3260 PL_statusvalue = -1; \
3261 else { \
3262 PL_statusvalue = \
3263 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3264 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3265 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3266 } \
3267 } STMT_END
3268# elif defined(WIFEXITED)
37038d91 3269# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3270 STMT_START { \
3271 PL_statusvalue_posix = (n); \
3272 if (PL_statusvalue_posix == -1) \
3273 PL_statusvalue = -1; \
3274 else { \
3275 PL_statusvalue = \
3276 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3277 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3278 } \
3279 } STMT_END
3280# else
37038d91 3281# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3282 STMT_START { \
3283 PL_statusvalue_posix = (n); \
3284 if (PL_statusvalue_posix == -1) \
3285 PL_statusvalue = -1; \
3286 else { \
3287 PL_statusvalue = \
3288 PL_statusvalue_posix & 0xFFFF; \
3289 } \
3290 } STMT_END
3291# endif
3292# define STATUS_UNIX_SET(n) \
68dc0745 3293 STMT_START { \
3280af22
NIS
3294 PL_statusvalue = (n); \
3295 if (PL_statusvalue != -1) \
3296 PL_statusvalue &= 0xFFFF; \
68dc0745 3297 } STMT_END
7a7fd8e0 3298# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3299# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3300# define STATUS_CURRENT STATUS_UNIX
37038d91 3301# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3302# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3303# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3304#endif
3305
cc3604b1
GS
3306/* flags in PL_exit_flags for nature of exit() */
3307#define PERL_EXIT_EXPECTED 0x01
31d77e54 3308#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3309#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3310#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3311
b79b76e0 3312#ifndef PERL_CORE
a7cb1f99 3313/* format to use for version numbers in file/directory names */
273cf8d1 3314/* XXX move to Configure? */
b79b76e0
NC
3315/* This was only ever used for the current version, and that can be done at
3316 compile time, as PERL_FS_VERSION, so should we just delete it? */
3317# ifndef PERL_FS_VER_FMT
3318# define PERL_FS_VER_FMT "%d.%d.%d"
3319# endif
3320#endif
3321
3322#ifndef PERL_FS_VERSION
3323# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3324#endif
3325
45bc9206 3326/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3327 * performance issue, so we allow people to disable it. Also, if
3328 * we are using stdio, there are broken implementations of fflush(NULL)
3329 * out there, Solaris being the most prominent.
45bc9206
GS
3330 */
3331#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3332# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3333# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3334# else
3335# ifdef FFLUSH_ALL
3336# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3337# else
c5be433b 3338# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3339# endif
66fe083f 3340# endif
45bc9206
GS
3341#endif
3342
7766f137
GS
3343#ifndef PERL_WAIT_FOR_CHILDREN
3344# define PERL_WAIT_FOR_CHILDREN NOOP
3345#endif
3346
ba869deb 3347/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3348#ifndef PERL_SET_INTERP
3349# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3350#endif
3351
3352#ifndef PERL_GET_INTERP
3353# define PERL_GET_INTERP (PL_curinterp)
3354#endif
3355
54aff467 3356#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3357# ifdef MULTIPLICITY
ba869deb 3358# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3359# endif
ba869deb
GS
3360# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3361#endif
3362
00f254e2 3363/*
8896765a 3364 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3365 All that is required is that the perl source does not
00f254e2
KW
3366 use "%-p" or "%-<number>p" or "%<number>p" formats.
3367 These formats will still work in perl code.
486ec47a 3368 See comments in sv.c for further details.
8896765a 3369
8896765a 3370 Robin Barker 2005-07-14
f46d31f2 3371
00f254e2 3372 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3373*/
8896765a
RB
3374
3375#ifndef SVf_
63ce7bf0 3376# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3377#endif
3378
8896765a 3379#ifndef SVf
104abab4 3380# define SVf "-p"
d2560b70
RB
3381#endif
3382
014ead4b 3383#ifndef SVf32
8896765a 3384# define SVf32 SVf_(32)
014ead4b
RB
3385#endif
3386
3387#ifndef SVf256
8896765a
RB
3388# define SVf256 SVf_(256)
3389#endif
3390
be2597df
MHM
3391#define SVfARG(p) ((void*)(p))
3392
20023040
FC
3393#ifndef HEKf
3394# define HEKf "2p"
3395#endif
3396
b8fa5213
FC
3397/* Not ideal, but we cannot easily include a number in an already-numeric
3398 * format sequence. */
3399#ifndef HEKf256
3400# define HEKf256 "3p"
3401#endif
3402
20023040
FC
3403#define HEKfARG(p) ((void*)(p))
3404
b17a0679
FC
3405/* Takes three arguments: is_utf8, length, str */
3406#ifndef UTF8f
61608bb7 3407# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3408#endif
3409#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3410
f46d31f2 3411#ifdef PERL_CORE
486ec47a 3412/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3413# undef UVf
3414#else
170cd9e9
NC
3415# ifndef UVf
3416# define UVf UVuf
3417# endif
d2560b70
RB
3418#endif
3419
fcdf39cf
RGS
3420#ifdef HASATTRIBUTE_DEPRECATED
3421# define __attribute__deprecated__ __attribute__((deprecated))
3422#endif
0dbb1585
AL
3423#ifdef HASATTRIBUTE_FORMAT
3424# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3425#endif
3426#ifdef HASATTRIBUTE_MALLOC
77785eea 3427# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3428#endif
0dbb1585 3429#ifdef HASATTRIBUTE_NONNULL
abb2c242 3430# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3431#endif
0dbb1585 3432#ifdef HASATTRIBUTE_NORETURN
abb2c242 3433# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3434#endif
0dbb1585 3435#ifdef HASATTRIBUTE_PURE
abb2c242 3436# define __attribute__pure__ __attribute__((pure))
f22be1b8 3437#endif
0dbb1585
AL
3438#ifdef HASATTRIBUTE_UNUSED
3439# define __attribute__unused__ __attribute__((unused))
3440#endif
3441#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3442# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3443#endif
3444
0dbb1585 3445/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3446#ifndef __attribute__deprecated__
3447# define __attribute__deprecated__
3448#endif
0dbb1585
AL
3449#ifndef __attribute__format__
3450# define __attribute__format__(x,y,z)
3451#endif
f22be1b8 3452#ifndef __attribute__malloc__
abb2c242 3453# define __attribute__malloc__
f22be1b8
JH
3454#endif
3455#ifndef __attribute__nonnull__
abb2c242 3456# define __attribute__nonnull__(a)
f22be1b8
JH
3457#endif
3458#ifndef __attribute__noreturn__
abb2c242 3459# define __attribute__noreturn__
f22be1b8
JH
3460#endif
3461#ifndef __attribute__pure__
abb2c242 3462# define __attribute__pure__
f22be1b8 3463#endif
0dbb1585
AL
3464#ifndef __attribute__unused__
3465# define __attribute__unused__
3466#endif
f22be1b8 3467#ifndef __attribute__warn_unused_result__
abb2c242
JH
3468# define __attribute__warn_unused_result__
3469#endif
3470
cd13e623
JH
3471#if defined(DEBUGGING) && defined(I_ASSERT)
3472# include <assert.h>
3473#endif
3474
0dbb1585
AL
3475/* For functions that are marked as __attribute__noreturn__, it's not
3476 appropriate to call return. In either case, include the lint directive.
3477 */
3478#ifdef HASATTRIBUTE_NORETURN
ae103e09 3479# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3480#else
ae103e09 3481# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3482#endif
3483
cdfeb707
RB
3484/* Some OS warn on NULL format to printf */
3485#ifdef PRINTF_FORMAT_NULL_OK
3486# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3487#else
00f254e2 3488# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3489#endif
3490
635aebb7 3491#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3492# define EXPECT(expr,val) __builtin_expect(expr,val)
3493#else
3494# define EXPECT(expr,val) (expr)
3495#endif
6d5abc62
NC
3496#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3497#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3498#ifdef HAS_BUILTIN_CHOOSE_EXPR
3499/* placeholder */
3500#endif
b37c2d43 3501
ae103e09
DD
3502
3503#ifndef __has_builtin
3504# define __has_builtin(x) 0 /* not a clang style compiler */
3505#endif
3506
3507/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3508 hint to a compiler about a statement of fact in a function call free
3509 expression, which allows the compiler to generate better machine code.
3510 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3511 the control path is unreachable. In a for loop, ASSUME can be used to hint
3512 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3513 intrinsic function, see its documents for more details.
3514*/
3515
3516#ifndef DEBUGGING
3517# if __has_builtin(__builtin_unreachable) \
3518 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 5) /* 4.5 -> */
3519# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3520# elif defined(_MSC_VER)
3521# define ASSUME(x) __assume(x)
3522# elif defined(__ARMCC_VERSION) /* untested */
3523# define ASSUME(x) __promise(x)
3524# else
3525/* a random compiler might define assert to its own special optimization token
3526 so pass it through to C lib as a last resort */
3527# define ASSUME(x) assert(x)
3528# endif
3529#else
3530# define ASSUME(x) assert(x)
3531#endif
3532
3533#define NOT_REACHED ASSUME(0)
3534
3fc1aec6
PP
3535/* Some unistd.h's give a prototype for pause() even though
3536 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3537 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3538*/
3539#ifdef HAS_PAUSE
3540#define Pause pause
3541#else
3542#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3543#endif
3544
3545#ifndef IOCPARM_LEN
3546# ifdef IOCPARM_MASK
61f1c44b 3547 /* on BSDish systems we're safe */
748a9306
LW
3548# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3549# else
61f1c44b 3550# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3551 /* on Linux systems we're safe; except when we're not [perl #38223] */
3552# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3553# else
748a9306 3554 /* otherwise guess at what's safe */
61f1c44b
JVD
3555# define IOCPARM_LEN(x) 256
3556# endif
748a9306 3557# endif
a0d0e21e
LW
3558#endif
3559
1761cee5 3560#if defined(__CYGWIN__)
521e0776
GS
3561/* USEMYBINMODE
3562 * This symbol, if defined, indicates that the program should
16fe6d59 3563 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3564 * that a file is in "binary" mode -- that is, that no translation
3565 * of bytes occurs on read or write operations.
3566 */
36894f0b 3567# define USEMYBINMODE /**/
77a40698 3568# include <io.h> /* for setmode() prototype */
16fe6d59 3569# define my_binmode(fp, iotype, mode) \
77a40698 3570 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3571#endif
3572
88d10794
JH
3573#ifdef __CYGWIN__
3574void init_os_extras(void);
3575#endif
3576
cea2e8a9
GS
3577#ifdef UNION_ANY_DEFINITION
3578UNION_ANY_DEFINITION;
3579#else
3580union any {
3581 void* any_ptr;
3582 I32 any_i32;
ae103e09 3583 U32 any_u32;
cea2e8a9 3584 IV any_iv;
c6bf6a65 3585 UV any_uv;
cea2e8a9 3586 long any_long;
9febdf04 3587 bool any_bool;
c76ac1ee 3588 void (*any_dptr) (void*);
acfe0abc 3589 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3590};
3591#endif
3592
acfe0abc 3593typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3594
3595#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3596#define FILTER_DATA(idx) \
3597 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3598#define FILTER_ISREADER(idx) \
3599 (PL_parser && PL_parser->rsfp_filters \
3600 && idx >= AvFILLp(PL_parser->rsfp_filters))
3601#define PERL_FILTER_EXISTS(i) \
3602 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3603 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3604
c5078cac
JH
3605#if defined(_AIX) && !defined(_AIX43)
3606#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3607/* We cannot include <crypt.h> to get the struct crypt_data
3608 * because of setkey prototype problems when threading */
3609typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3610 /* From OSF, Not needed in AIX
3611 char C[28], D[28];
3612 */
3613 char E[48];
3614 char KS[16][48];
3615 char block[66];
3616 char iobuf[16];
3617} CRYPTD;
3618#endif /* threading */
3619#endif /* AIX */
3620
e37778c2 3621#if !defined(OS2)
2c2d71f5
JH
3622# include "iperlsys.h"
3623#endif
504f80c1 3624
9c12f1e5 3625#ifdef __LIBCATAMOUNT__
00f254e2 3626#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3627#undef HAS_GROUP
3628#define FAKE_BIT_BUCKET
3629#endif
3630
d10dc2ae
JH
3631/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3632 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3633 * defined by Configure, despite their names being similar to the
3634 * other defines like USE_ITHREADS. Configure in fact knows nothing
3635 * about the randomised hashes. Therefore to enable/disable the hash
3636 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3637#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3638# define USE_HASH_SEED
504f80c1
JH
3639#endif
3640
598921a7
NC
3641/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3642 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3643 * it's not really needed.
3644 */
3645#if defined(WIN32)
3646# define YYTOKENTYPE
3647#endif
3648#include "perly.h"
3649
598921a7 3650
654eccd5
JD
3651/* macros to define bit-fields in structs. */
3652#ifndef PERL_BITFIELD8
3653# define PERL_BITFIELD8 unsigned
3654#endif
3655#ifndef PERL_BITFIELD16
3656# define PERL_BITFIELD16 unsigned
3657#endif
3658#ifndef PERL_BITFIELD32
3659# define PERL_BITFIELD32 unsigned
3660#endif
3661
79072805 3662#include "sv.h"
288b8c02 3663#include "regexp.h"
378cc40b 3664#include "util.h"
8d063cd8 3665#include "form.h"
79072805 3666#include "gv.h"
dd2155a4 3667#include "pad.h"
79072805 3668#include "cv.h"
abdd5c84 3669#include "opnames.h"
79072805 3670#include "op.h"
b3ca2e83 3671#include "hv.h"
79072805
LW
3672#include "cop.h"
3673#include "av.h"
79072805
LW
3674#include "mg.h"
3675#include "scope.h"
4438c4b7 3676#include "warnings.h"
a0ed51b3 3677#include "utf8.h"
8d063cd8 3678
0d7d409d
DM
3679/* these would be in doio.h if there was such a file */
3680#define my_stat() my_stat_flags(SV_GMAGIC)
3681#define my_lstat() my_lstat_flags(SV_GMAGIC)
3682
20f4945e 3683/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3684#undef _XPV_HEAD
3685#undef _XPVMG_HEAD
3686#undef _XPVCV_COMMON
7fae4e64
GS
3687
3688typedef struct _sublex_info SUBLEXINFO;
3689struct _sublex_info {
651b5b28
NC
3690 U8 super_state; /* lexer state to save */
3691 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3692 OP *sub_op; /* "lex_op" to use */
7cc34111 3693 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3694};
3695
199e78b7
DM
3696#include "parser.h"
3697
455ece5e 3698typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3699
2260ab51
KW
3700#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3701
3702/* These have to be predeclared, as they are used in proto.h which is #included
3703 * before their definitions in regcomp.h. */
3704
3705struct scan_data_t;
7dcac5f6
KW
3706typedef struct regnode_charclass regnode_charclass;
3707
2260ab51 3708struct regnode_charclass_class;
d1d040e5
KW
3709
3710/* A hopefully less confusing name. The sub-classes are all Posix classes only
3711 * used under /l matching */
3712typedef struct regnode_charclass_class regnode_charclass_posixl;
3713
b8f7bb16 3714typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW
3715typedef struct RExC_state_t RExC_state_t;
3716struct _reg_trie_data;
76e3520e 3717
2260ab51
KW
3718#endif
3719
5f7fde29
GS
3720struct ptr_tbl_ent {
3721 struct ptr_tbl_ent* next;
53c1dcc0 3722 const void* oldval;
5f7fde29 3723 void* newval;
d18c6117
GS
3724};
3725
5f7fde29
GS
3726struct ptr_tbl {
3727 struct ptr_tbl_ent** tbl_ary;
3728 UV tbl_max;
3729 UV tbl_items;
db93c0c4
NC
3730 struct ptr_tbl_arena *tbl_arena;
3731 struct ptr_tbl_ent *tbl_arena_next;
3732 struct ptr_tbl_ent *tbl_arena_end;