This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Eliminate the conditionally-compiled fallback functions for htonl etc.
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
85e6fe83
LW
11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
760ac839
LW
14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
760ac839
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
95036ac7
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25#if defined(DGUX)
26#include <sys/fcntl.h>
27#endif
28
47a51902
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29#ifdef VOIDUSED
30# undef VOIDUSED
00f254e2 31#endif
0cb96387 32#define VOIDUSED 1
47a51902 33
d460ef45 34#ifdef PERL_MICRO
12ae5dfc
JH
35# include "uconfig.h"
36#else
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37# ifndef USE_CROSS_COMPILE
38# include "config.h"
39# else
40# include "xconfig.h"
41# endif
12ae5dfc 42#endif
0cb96387 43
2c2d71f5
JH
44/* See L<perlguts/"The Perl API"> for detailed notes on
45 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
46
ac6bedea
JH
47/* Note that from here --> to <-- the same logic is
48 * repeated in makedef.pl, so be certain to update
49 * both places when editing. */
50
6f4183fe 51#ifdef USE_ITHREADS
acfe0abc 52# if !defined(MULTIPLICITY)
6f4183fe
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53# define MULTIPLICITY
54# endif
55#endif
56
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57#ifdef PERL_GLOBAL_STRUCT_PRIVATE
58# ifndef PERL_GLOBAL_STRUCT
59# define PERL_GLOBAL_STRUCT
60# endif
61#endif
97aff369 62
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63#ifdef PERL_GLOBAL_STRUCT
64# ifndef MULTIPLICITY
65# define MULTIPLICITY
66# endif
67#endif
68
97aff369
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69#ifdef MULTIPLICITY
70# ifndef PERL_IMPLICIT_CONTEXT
71# define PERL_IMPLICIT_CONTEXT
72# endif
73#endif
74
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75/* undef WIN32 when building on Cygwin (for libwin32) - gph */
76#ifdef __CYGWIN__
77# undef WIN32
78# undef _WIN32
79#endif
80
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81#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
82# ifndef SYMBIAN
83# define SYMBIAN
84# endif
85#endif
86
a0fd4948 87#ifdef __SYMBIAN32__
27da23d5
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88# include "symbian/symbian_proto.h"
89#endif
90
91/* Any stack-challenged places. The limit varies (and often
92 * is configurable), but using more than a kilobyte of stack
93 * is usually dubious in these systems. */
739a0b84
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94#if defined(__SYMBIAN32__)
95/* Symbian: need to work around the SDK features. *
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96 * On WINS: MS VC5 generates calls to _chkstk, *
97 * if a "large" stack frame is allocated. *
98 * gcc on MARM does not generate calls like these. */
99# define USE_HEAP_INSTEAD_OF_STACK
100#endif
101
102#/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 103/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 104#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
10bc17b6
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105# define USE_REENTRANT_API
106#endif
107
ac6bedea
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108/* <--- here ends the logic shared by perl.h and makedef.pl */
109
af28e889 110/*
6239f2da
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111 * PERL_DARWIN for MacOSX (__APPLE__ exists but is not officially sanctioned)
112 * (The -DPERL_DARWIN comes from the hints/darwin.sh.)
af28e889
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113 * __bsdi__ for BSD/OS
114 */
6239f2da 115#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(PERL_DARWIN) || defined(__bsdi__) || defined(BSD41) || defined(BSD42) || defined(BSD43) || defined(BSD44)
af28e889
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116# ifndef BSDish
117# define BSDish
118# endif
119#endif
120
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121#undef START_EXTERN_C
122#undef END_EXTERN_C
123#undef EXTERN_C
124#ifdef __cplusplus
125# define START_EXTERN_C extern "C" {
126# define END_EXTERN_C }
127# define EXTERN_C extern "C"
128#else
129# define START_EXTERN_C
130# define END_EXTERN_C
131# define EXTERN_C extern
132#endif
133
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134/* Fallback definitions in case we don't have definitions from config.h.
135 This should only matter for systems that don't use Configure and
136 haven't been modified to define PERL_STATIC_INLINE yet.
137*/
138#if !defined(PERL_STATIC_INLINE)
139# ifdef HAS_STATIC_INLINE
140# define PERL_STATIC_INLINE static inline
141# else
142# define PERL_STATIC_INLINE static
143# endif
144#endif
145
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146#ifdef PERL_GLOBAL_STRUCT
147# ifndef PERL_GET_VARS
148# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 149 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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150# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
151# ifndef PERLIO_FUNCS_CONST
152# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
153# endif
154# else
155# define PERL_GET_VARS() PL_VarsPtr
156# endif
157# endif
158#endif
159
5aaab254 160#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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161
162#ifdef PERL_GLOBAL_STRUCT
163# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
164#else
165# define dVAR dNOOP
166#endif
167
c5be433b 168#ifdef PERL_IMPLICIT_CONTEXT
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169# ifndef MULTIPLICITY
170# define MULTIPLICITY
c5be433b 171# endif
e8dda941 172# define tTHX PerlInterpreter*
5aaab254 173# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 174# define aTHX my_perl
9399a70c 175# define aTHXa(a) aTHX = (tTHX)a
27da23d5 176# ifdef PERL_GLOBAL_STRUCT
e8dda941 177# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 178# else
e8dda941 179# define dTHXa(a) pTHX = (tTHX)a
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180# endif
181# ifdef PERL_GLOBAL_STRUCT
182# define dTHX dVAR; pTHX = PERL_GET_THX
183# else
184# define dTHX pTHX = PERL_GET_THX
185# endif
c5be433b 186# define pTHX_ pTHX,
c5be433b 187# define aTHX_ aTHX,
4373e329 188# define pTHX_1 2
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189# define pTHX_2 3
190# define pTHX_3 4
191# define pTHX_4 5
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192# define pTHX_5 6
193# define pTHX_6 7
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194# define pTHX_7 8
195# define pTHX_8 9
196# define pTHX_9 10
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197# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
198# define PERL_TRACK_MEMPOOL
199# endif
200#else
201# undef PERL_TRACK_MEMPOOL
c5be433b
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202#endif
203
76e3520e 204#define STATIC static
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205
206#ifndef PERL_CORE
207/* Do not use these macros. They were part of PERL_OBJECT, which was an
208 * implementation of multiplicity using C++ objects. They have been left
209 * here solely for the sake of XS code which has incorrectly
210 * cargo-culted them.
211 */
76e3520e 212#define CPERLscope(x) x
565764a8 213#define CPERLarg void
76e3520e 214#define CPERLarg_
e3b8966e 215#define _CPERLarg
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216#define PERL_OBJECT_THIS
217#define _PERL_OBJECT_THIS
218#define PERL_OBJECT_THIS_
312caa8e 219#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 220#define MEMBER_TO_FPTR(name) name
16c91539 221#endif /* !PERL_CORE */
76e3520e 222
16c91539 223#define CALLRUNOPS PL_runops
f9f4320a 224
3ab4a224 225#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 226
16c91539 227#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
f9f4320a 228#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,screamer,data,flags) \
16c91539 229 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
f9f4320a
YO
230 (strbeg),(minend),(screamer),(data),(flags))
231#define CALLREG_INTUIT_START(prog,sv,strpos,strend,flags,data) \
16c91539 232 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strpos), \
f9f4320a
YO
233 (strend),(flags),(data))
234#define CALLREG_INTUIT_STRING(prog) \
16c91539 235 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 236
f8149455
YO
237#define CALLREGFREE(prog) \
238 Perl_pregfree(aTHX_ (prog))
239
240#define CALLREGFREE_PVT(prog) \
16c91539 241 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 242
2fdbfb4d 243#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 244 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 245
2fdbfb4d 246#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 247 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
2fdbfb4d
AB
248
249#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 250 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 251
192b9cd1 252#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 253 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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254
255#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 256 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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AB
257
258#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 259 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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260
261#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 262 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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263
264#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 265 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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266
267#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 268 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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AB
269
270#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 271 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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272
273#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 274 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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275
276#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 277 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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278
279#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 280 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 281
49d7dfbc 282#define CALLREG_PACKAGE(rx) \
16c91539 283 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 284
00f254e2 285#if defined(USE_ITHREADS)
f9f4320a 286#define CALLREGDUPE(prog,param) \
f8149455
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287 Perl_re_dup(aTHX_ (prog),(param))
288
289#define CALLREGDUPE_PVT(prog,param) \
16c91539 290 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 291 : (REGEXP *)NULL)
f9f4320a 292#endif
14dd3ad8 293
a20207d7 294
bcdf7404 295
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296
297
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298/*
299 * Because of backward compatibility reasons the PERL_UNUSED_DECL
300 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
301 *
302 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 303 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
SH
304 * marking unused variables (they need e.g. a #pragma) and therefore
305 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
306 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
307 *
308 */
1266ad8c 309
9969cdde 310#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 311# ifdef __cplusplus
5ba4cab2 312# define PERL_UNUSED_DECL
5b2bd0a5 313# else
5ba4cab2 314# define PERL_UNUSED_DECL __attribute__((unused))
5b2bd0a5
AMS
315# endif
316#endif
44dbb695 317
5b2bd0a5 318#ifndef PERL_UNUSED_DECL
34659ad4 319# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 320# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 321# else
5ba4cab2 322# define PERL_UNUSED_DECL
b79c357a 323# endif
5b2bd0a5 324#endif
00f254e2 325
349b520e
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326/* gcc -Wall:
327 * for silencing unused variables that are actually used most of the time,
a0288114 328 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs
349b520e 329 */
53c1dcc0 330#ifndef PERL_UNUSED_ARG
c99ffe5e 331# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 332# include <note.h>
53c1dcc0 333# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 334# else
53c1dcc0 335# define PERL_UNUSED_ARG(x) ((void)x)
ad73156c
AL
336# endif
337#endif
53c1dcc0
AL
338#ifndef PERL_UNUSED_VAR
339# define PERL_UNUSED_VAR(x) ((void)x)
340#endif
ad73156c 341
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342#ifdef USE_ITHREADS
343# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
344#else
345# define PERL_UNUSED_CONTEXT
346#endif
347
6f207bd3 348#define NOOP /*EMPTY*/(void)0
bafdc25d
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349/* cea2e8a9dd23747f accidentally lost the comment originally from the first
350 check in of thread.h, explaining why we need dNOOP at all: */
351/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
352/* Declaring a *function*, instead of a variable, ensures that we don't rely
353 on being able to suppress "unused" warnings. */
7db66e12
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354#ifdef __cplusplus
355#define dNOOP (void)0
356#else
64a8239e 357#define dNOOP extern int Perl___notused(void)
7db66e12 358#endif
71be2cbc 359
0cb96387 360#ifndef pTHX
e8dda941
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361/* Don't bother defining tTHX and sTHX; using them outside
362 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
363 */
0cb96387
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364# define pTHX void
365# define pTHX_
0cb96387
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366# define aTHX
367# define aTHX_
9399a70c 368# define aTHXa(a) NOOP
0cb96387
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369# define dTHXa(a) dNOOP
370# define dTHX dNOOP
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371# define pTHX_1 1
372# define pTHX_2 2
373# define pTHX_3 3
374# define pTHX_4 4
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375# define pTHX_5 5
376# define pTHX_6 6
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377# define pTHX_7 7
378# define pTHX_8 8
379# define pTHX_9 9
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380#endif
381
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382#ifndef dVAR
383# define dVAR dNOOP
384#endif
385
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386/* these are only defined for compatibility; should not be used internally */
387#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
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388# define pTHXo pTHX
389# define pTHXo_ pTHX_
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390# define aTHXo aTHX
391# define aTHXo_ aTHX_
c5be433b 392# define dTHXo dTHX
71d280e3 393# define dTHXoa(x) dTHXa(x)
0cb96387
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394#endif
395
396#ifndef pTHXx
5aaab254 397# define pTHXx PerlInterpreter *my_perl
0cb96387 398# define pTHXx_ pTHXx,
0cb96387
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399# define aTHXx my_perl
400# define aTHXx_ aTHXx,
c5be433b 401# define dTHXx dTHX
22c35a8c 402#endif
71be2cbc 403
1de7c2ac
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404/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
405 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
406 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
407#ifdef PERL_IMPLICIT_SYS
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408# ifdef PERL_GLOBAL_STRUCT_PRIVATE
409# define dTHXs dVAR; dTHX
410# else
411# define dTHXs dTHX
412# endif
1de7c2ac 413#else
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414# ifdef PERL_GLOBAL_STRUCT_PRIVATE
415# define dTHXs dVAR
416# else
417# define dTHXs dNOOP
418# endif
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419#endif
420
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421/* Some platforms require marking function declarations
422 * for them to be exportable. Used in perlio.h, proto.h
423 * is handled either by the makedef.pl or by defining the
424 * PERL_CALLCONV to be something special. See also the
425 * definition of XS() in XSUB.h. */
426#ifndef PERL_EXPORT_C
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427# ifdef __cplusplus
428# define PERL_EXPORT_C extern "C"
429# else
430# define PERL_EXPORT_C extern
431# endif
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432#endif
433#ifndef PERL_XS_EXPORT_C
a0c21aa1
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434# ifdef __cplusplus
435# define PERL_XS_EXPORT_C extern "C"
436# else
437# define PERL_XS_EXPORT_C
438# endif
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439#endif
440
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441#ifdef OP_IN_REGISTER
442# ifdef __GNUC__
443# define stringify_immed(s) #s
444# define stringify(s) stringify_immed(s)
5aaab254 445struct op *Perl_op asm(stringify(OP_IN_REGISTER));
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MB
446# endif
447#endif
448
e5afc1ae 449/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
b1e55cab 450 * g++ allows them but seems to have problems with them
70aab261
RB
451 * (insane errors ensue).
452 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
453 */
454#if defined(PERL_GCC_PEDANTIC) || \
455 (defined(__GNUC__) && defined(__cplusplus) && \
456 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
5b692037 457# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
22469a62
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458# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
459# endif
5dc8bdac
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460#endif
461
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JH
462#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
463# ifndef PERL_USE_GCC_BRACE_GROUPS
464# define PERL_USE_GCC_BRACE_GROUPS
465# endif
466#endif
467
728e2803
PP
468/*
469 * STMT_START { statements; } STMT_END;
470 * can be used as a single statement, as in
471 * if (x) STMT_START { ... } STMT_END; else ...
472 *
473 * Trying to select a version that gives no warnings...
474 */
475#if !(defined(STMT_START) && defined(STMT_END))
5b692037 476# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 477# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
478# define STMT_END )
479# else
480 /* Now which other defined()s do we need here ??? */
93189314 481# if (VOIDFLAGS) && (defined(sun) || defined(__sun__)) && !defined(__GNUC__)
728e2803
PP
482# define STMT_START if (1)
483# define STMT_END else (void)0
484# else
485# define STMT_START do
486# define STMT_END while (0)
487# endif
488# endif
489#endif
490
d6f9c181
JH
491#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
492# define BYTEORDER 0x1234
79072805
LW
493#endif
494
495/* Overall memory policy? */
496#ifndef CONSERVATIVE
497# define LIBERAL 1
498#endif
499
8ada0baa
JH
500#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
501#define ASCIIish
502#else
503#undef ASCIIish
504#endif
505
79072805
LW
506/*
507 * The following contortions are brought to you on behalf of all the
508 * standards, semi-standards, de facto standards, not-so-de-facto standards
509 * of the world, as well as all the other botches anyone ever thought of.
510 * The basic theory is that if we work hard enough here, the rest of the
511 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
512 */
ac58e20f 513
ee0007ab 514/* define this once if either system, instead of cluttering up the src */
7c458fae 515#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
516#define DOSISH 1
517#endif
518
739a0b84 519#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
520# define STANDARD_C 1
521#endif
522
739a0b84 523#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__DGUX) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
524# define DONT_DECLARE_STD 1
525#endif
526
352d5a3a 527#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 528# define VOL volatile
663a0e37 529#else
79072805 530# define VOL
663a0e37
LW
531#endif
532
284167a5
SM
533/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
534 * you get a perl without taint support, but doubtlessly with a lesser
535 * degree of support. Do not do so unless you know exactly what it means
536 * technically, have a good reason to do so, and know exactly how the
537 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
538 * a potential security risk due to flat out ignoring the security-relevant
539 * taint flags. This being said, a perl without taint support compiled in
540 * has marginal run-time performance benefits.
541 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
542 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
543 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
544 *
545 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 546 * voids your nonexistent warranty!
284167a5
SM
547 */
548#if SILENT_NO_TAINT_SUPPORT && !defined(NO_TAINT_SUPPORT)
549# define NO_TAINT_SUPPORT 1
550#endif
551
552/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
553 * operations into no-ops for a very modest speed-up. Enable only if you
554 * know what you're doing: tests and CPAN modules' tests are bound to fail.
555 */
556#if NO_TAINT_SUPPORT
557# define TAINT NOOP
558# define TAINT_NOT NOOP
559# define TAINT_IF(c) NOOP
560# define TAINT_ENV() NOOP
561# define TAINT_PROPER(s) NOOP
562# define TAINT_set(s) NOOP
563# define TAINT_get 0
564# define TAINTING_get 0
565# define TAINTING_set(s) NOOP
566# define TAINT_WARN_get 0
567# define TAINT_WARN_set(s) NOOP
568#else
569# define TAINT (PL_tainted = TRUE)
570# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
571# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
572# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
573# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
574# define TAINT_set(s) (PL_tainted = (s))
575# define TAINT_get (PL_tainted)
576# define TAINTING_get (PL_tainting)
577# define TAINTING_set(s) (PL_tainting = (s))
578# define TAINT_WARN_get (PL_taint_warn)
579# define TAINT_WARN_set(s) (PL_taint_warn = (s))
580#endif
a687059c 581
20be6587
DM
582/* flags used internally only within pp_subst and pp_substcont */
583#ifdef PERL_CORE
584# define SUBST_TAINT_STR 1 /* string tainted */
585# define SUBST_TAINT_PAT 2 /* pattern tainted */
586# define SUBST_TAINT_REPL 4 /* replacement tainted */
587# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
588# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
589#endif
590
d460ef45 591/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
592 defines move there? If so, I could simplify this a lot. --AD 9/96.
593*/
594/* Process group stuff changed from traditional BSD to POSIX.
595 perlfunc.pod documents the traditional BSD-style syntax, so we'll
596 try to preserve that, if possible.
597*/
598#ifdef HAS_SETPGID
599# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 600#else
a6e633de
PP
601# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
602# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
603# else
604# ifdef HAS_SETPGRP2 /* DG/UX */
605# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
606# endif
607# endif
608#endif
609#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
610# define HAS_SETPGRP /* Well, effectively it does . . . */
611#endif
612
613/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
614 our life easier :-) so we'll try it.
615*/
616#ifdef HAS_GETPGID
617# define BSD_GETPGRP(pid) getpgid((pid))
618#else
619# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
620# define BSD_GETPGRP(pid) getpgrp((pid))
621# else
622# ifdef HAS_GETPGRP2 /* DG/UX */
623# define BSD_GETPGRP(pid) getpgrp2((pid))
624# endif
625# endif
626#endif
627#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
628# define HAS_GETPGRP /* Well, effectively it does . . . */
629#endif
630
d460ef45 631/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
632 have different behaviors, but perl.h used to define USE_BSDPGRP
633 (prior to 5.003_05) so some extension might depend on it.
634*/
635#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
636# ifndef USE_BSDPGRP
637# define USE_BSDPGRP
638# endif
663a0e37
LW
639#endif
640
486ec47a 641/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
642 pthread.h must be included before all other header files.
643*/
3db8f154 644#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
645# include <pthread.h>
646#endif
647
760ac839
LW
648#ifndef _TYPES_ /* If types.h defines this it's easy. */
649# ifndef major /* Does everyone's types.h define this? */
650# include <sys/types.h>
c07a80fd 651# endif
663a0e37
LW
652#endif
653
760ac839
LW
654#ifdef __cplusplus
655# ifndef I_STDARG
656# define I_STDARG 1
657# endif
658#endif
659
660#ifdef I_STDARG
661# include <stdarg.h>
662#else
663# ifdef I_VARARGS
664# include <varargs.h>
665# endif
666#endif
667
4633a7c4 668#ifdef USE_NEXT_CTYPE
0c30d9ec 669
092bebab
JH
670#if NX_CURRENT_COMPILER_RELEASE >= 500
671# include <bsd/ctypes.h>
672#else
673# if NX_CURRENT_COMPILER_RELEASE >= 400
674# include <objc/NXCType.h>
675# else /* NX_CURRENT_COMPILER_RELEASE < 400 */
676# include <appkit/NXCType.h>
677# endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
678#endif /* NX_CURRENT_COMPILER_RELEASE >= 500 */
0c30d9ec
PP
679
680#else /* !USE_NEXT_CTYPE */
fe14fcc3 681#include <ctype.h>
0c30d9ec 682#endif /* USE_NEXT_CTYPE */
a0d0e21e
LW
683
684#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
685#undef METHOD
a0d0e21e
LW
686#endif
687
12ae5dfc
JH
688#ifdef PERL_MICRO
689# define NO_LOCALE
690#endif
691
4633a7c4 692#ifdef I_LOCALE
36477c24 693# include <locale.h>
4633a7c4
LW
694#endif
695
36477c24
PP
696#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
697# define USE_LOCALE
698# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
699 && defined(HAS_STRXFRM)
700# define USE_LOCALE_COLLATE
701# endif
702# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
703# define USE_LOCALE_CTYPE
704# endif
705# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
706# define USE_LOCALE_NUMERIC
707# endif
708#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 709
fe14fcc3 710#include <setjmp.h>
79072805 711
a0d0e21e 712#ifdef I_SYS_PARAM
79072805
LW
713# ifdef PARAM_NEEDS_TYPES
714# include <sys/types.h>
715# endif
716# include <sys/param.h>
352d5a3a 717#endif
79072805 718
79072805 719/* Use all the "standard" definitions? */
a0d0e21e 720#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 721# include <stdlib.h>
ff68c719 722#endif
03a14243 723
3f270f98
JH
724/* If this causes problems, set i_unistd=undef in the hint file. */
725#ifdef I_UNISTD
726# include <unistd.h>
727#endif
728
de8ca8af
NT
729/* for WCOREDUMP */
730#ifdef I_SYS_WAIT
731# include <sys/wait.h>
732#endif
733
9969cdde 734#ifdef __SYMBIAN32__
27da23d5
JH
735# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
736#endif
737
7114a2d2 738#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) && !defined(PERL_MICRO)
c45598c5 739EXTERN_C int syscall(int, ...);
2ef53570
JH
740#endif
741
7114a2d2 742#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) && !defined(PERL_MICRO)
c45598c5 743EXTERN_C int usleep(unsigned int);
2ef53570
JH
744#endif
745
1109a392
MHM
746#ifdef PERL_CORE
747
748/* macros for correct constant construction */
749# if INTSIZE >= 2
750# define U16_CONST(x) ((U16)x##U)
751# else
752# define U16_CONST(x) ((U16)x##UL)
753# endif
754
755# if INTSIZE >= 4
756# define U32_CONST(x) ((U32)x##U)
757# else
758# define U32_CONST(x) ((U32)x##UL)
759# endif
760
761# ifdef HAS_QUAD
762# if INTSIZE >= 8
763# define U64_CONST(x) ((U64)x##U)
764# elif LONGSIZE >= 8
765# define U64_CONST(x) ((U64)x##UL)
766# elif QUADKIND == QUAD_IS_LONG_LONG
767# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
768# elif QUADKIND == QUAD_IS___INT64
769# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
770# else /* best guess we can make */
771# define U64_CONST(x) ((U64)x##UL)
772# endif
773# endif
774
775/* byte-swapping functions for big-/little-endian conversion */
776# define _swab_16_(x) ((U16)( \
777 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
778 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
779
780# define _swab_32_(x) ((U32)( \
781 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
782 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
783 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
784 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
785
786# ifdef HAS_QUAD
787# define _swab_64_(x) ((U64)( \
788 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
789 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
790 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
791 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
792 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
793 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
794 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
795 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
796# endif
797
798/*----------------------------------------------------------------------------*/
799# if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */
800/*----------------------------------------------------------------------------*/
801# define my_htole16(x) (x)
802# define my_letoh16(x) (x)
803# define my_htole32(x) (x)
804# define my_letoh32(x) (x)
805# define my_htobe16(x) _swab_16_(x)
806# define my_betoh16(x) _swab_16_(x)
807# define my_htobe32(x) _swab_32_(x)
808# define my_betoh32(x) _swab_32_(x)
809# ifdef HAS_QUAD
810# define my_htole64(x) (x)
811# define my_letoh64(x) (x)
812# define my_htobe64(x) _swab_64_(x)
813# define my_betoh64(x) _swab_64_(x)
814# endif
815# define my_htoles(x) (x)
816# define my_letohs(x) (x)
817# define my_htolei(x) (x)
818# define my_letohi(x) (x)
819# define my_htolel(x) (x)
820# define my_letohl(x) (x)
821# if SHORTSIZE == 1
822# define my_htobes(x) (x)
823# define my_betohs(x) (x)
824# elif SHORTSIZE == 2
825# define my_htobes(x) _swab_16_(x)
826# define my_betohs(x) _swab_16_(x)
827# elif SHORTSIZE == 4
828# define my_htobes(x) _swab_32_(x)
829# define my_betohs(x) _swab_32_(x)
830# elif SHORTSIZE == 8
831# define my_htobes(x) _swab_64_(x)
832# define my_betohs(x) _swab_64_(x)
833# else
834# define PERL_NEED_MY_HTOBES
835# define PERL_NEED_MY_BETOHS
836# endif
837# if INTSIZE == 1
838# define my_htobei(x) (x)
839# define my_betohi(x) (x)
840# elif INTSIZE == 2
841# define my_htobei(x) _swab_16_(x)
842# define my_betohi(x) _swab_16_(x)
843# elif INTSIZE == 4
844# define my_htobei(x) _swab_32_(x)
845# define my_betohi(x) _swab_32_(x)
846# elif INTSIZE == 8
847# define my_htobei(x) _swab_64_(x)
848# define my_betohi(x) _swab_64_(x)
849# else
850# define PERL_NEED_MY_HTOBEI
851# define PERL_NEED_MY_BETOHI
852# endif
853# if LONGSIZE == 1
854# define my_htobel(x) (x)
855# define my_betohl(x) (x)
856# elif LONGSIZE == 2
857# define my_htobel(x) _swab_16_(x)
858# define my_betohl(x) _swab_16_(x)
859# elif LONGSIZE == 4
860# define my_htobel(x) _swab_32_(x)
861# define my_betohl(x) _swab_32_(x)
862# elif LONGSIZE == 8
863# define my_htobel(x) _swab_64_(x)
864# define my_betohl(x) _swab_64_(x)
865# else
866# define PERL_NEED_MY_HTOBEL
867# define PERL_NEED_MY_BETOHL
868# endif
869# define my_htolen(p,n) NOOP
870# define my_letohn(p,n) NOOP
871# define my_htoben(p,n) my_swabn(p,n)
872# define my_betohn(p,n) my_swabn(p,n)
873/*----------------------------------------------------------------------------*/
874# elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */
875/*----------------------------------------------------------------------------*/
876# define my_htobe16(x) (x)
877# define my_betoh16(x) (x)
878# define my_htobe32(x) (x)
879# define my_betoh32(x) (x)
880# define my_htole16(x) _swab_16_(x)
881# define my_letoh16(x) _swab_16_(x)
882# define my_htole32(x) _swab_32_(x)
883# define my_letoh32(x) _swab_32_(x)
884# ifdef HAS_QUAD
885# define my_htobe64(x) (x)
886# define my_betoh64(x) (x)
887# define my_htole64(x) _swab_64_(x)
888# define my_letoh64(x) _swab_64_(x)
889# endif
890# define my_htobes(x) (x)
891# define my_betohs(x) (x)
892# define my_htobei(x) (x)
893# define my_betohi(x) (x)
894# define my_htobel(x) (x)
895# define my_betohl(x) (x)
896# if SHORTSIZE == 1
897# define my_htoles(x) (x)
898# define my_letohs(x) (x)
899# elif SHORTSIZE == 2
900# define my_htoles(x) _swab_16_(x)
901# define my_letohs(x) _swab_16_(x)
902# elif SHORTSIZE == 4
903# define my_htoles(x) _swab_32_(x)
904# define my_letohs(x) _swab_32_(x)
905# elif SHORTSIZE == 8
906# define my_htoles(x) _swab_64_(x)
907# define my_letohs(x) _swab_64_(x)
908# else
909# define PERL_NEED_MY_HTOLES
910# define PERL_NEED_MY_LETOHS
911# endif
912# if INTSIZE == 1
913# define my_htolei(x) (x)
914# define my_letohi(x) (x)
915# elif INTSIZE == 2
916# define my_htolei(x) _swab_16_(x)
917# define my_letohi(x) _swab_16_(x)
918# elif INTSIZE == 4
919# define my_htolei(x) _swab_32_(x)
920# define my_letohi(x) _swab_32_(x)
921# elif INTSIZE == 8
922# define my_htolei(x) _swab_64_(x)
923# define my_letohi(x) _swab_64_(x)
924# else
925# define PERL_NEED_MY_HTOLEI
926# define PERL_NEED_MY_LETOHI
927# endif
928# if LONGSIZE == 1
929# define my_htolel(x) (x)
930# define my_letohl(x) (x)
931# elif LONGSIZE == 2
932# define my_htolel(x) _swab_16_(x)
933# define my_letohl(x) _swab_16_(x)
934# elif LONGSIZE == 4
935# define my_htolel(x) _swab_32_(x)
936# define my_letohl(x) _swab_32_(x)
937# elif LONGSIZE == 8
938# define my_htolel(x) _swab_64_(x)
939# define my_letohl(x) _swab_64_(x)
940# else
941# define PERL_NEED_MY_HTOLEL
942# define PERL_NEED_MY_LETOHL
943# endif
944# define my_htolen(p,n) my_swabn(p,n)
945# define my_letohn(p,n) my_swabn(p,n)
946# define my_htoben(p,n) NOOP
947# define my_betohn(p,n) NOOP
948/*----------------------------------------------------------------------------*/
949# else /* all other byte-orders */
950/*----------------------------------------------------------------------------*/
951# define PERL_NEED_MY_HTOLE16
952# define PERL_NEED_MY_LETOH16
953# define PERL_NEED_MY_HTOBE16
954# define PERL_NEED_MY_BETOH16
955# define PERL_NEED_MY_HTOLE32
956# define PERL_NEED_MY_LETOH32
957# define PERL_NEED_MY_HTOBE32
958# define PERL_NEED_MY_BETOH32
959# ifdef HAS_QUAD
960# define PERL_NEED_MY_HTOLE64
961# define PERL_NEED_MY_LETOH64
962# define PERL_NEED_MY_HTOBE64
963# define PERL_NEED_MY_BETOH64
964# endif
965# define PERL_NEED_MY_HTOLES
966# define PERL_NEED_MY_LETOHS
967# define PERL_NEED_MY_HTOBES
968# define PERL_NEED_MY_BETOHS
969# define PERL_NEED_MY_HTOLEI
970# define PERL_NEED_MY_LETOHI
971# define PERL_NEED_MY_HTOBEI
972# define PERL_NEED_MY_BETOHI
973# define PERL_NEED_MY_HTOLEL
974# define PERL_NEED_MY_LETOHL
975# define PERL_NEED_MY_HTOBEL
976# define PERL_NEED_MY_BETOHL
977/*----------------------------------------------------------------------------*/
978# endif /* end of byte-order macros */
979/*----------------------------------------------------------------------------*/
980
9c17f24a
NC
981/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
982 at least on FreeBSD. YMMV, so experiment. */
983#ifndef PERL_ARENA_SIZE
984#define PERL_ARENA_SIZE 4080
985#endif
986
ccb2c8b8 987/* Maximum level of recursion */
2b9dff67
RGS
988#ifndef PERL_SUB_DEPTH_WARN
989#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
990#endif
991
1109a392
MHM
992#endif /* PERL_CORE */
993
bdf3085f
NC
994/* We no longer default to creating a new SV for GvSV.
995 Do this before embed. */
996#ifndef PERL_CREATE_GVSV
7459f06b
NC
997# ifndef PERL_DONT_CREATE_GVSV
998# define PERL_DONT_CREATE_GVSV
999# endif
bdf3085f
NC
1000#endif
1001
ca0c25f6
NC
1002#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1003#define PERL_USES_PL_PIDSTATUS
1004#endif
1005
739a0b84 1006#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
1007#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1008#endif
1009
c31fac66
GS
1010#define MEM_SIZE Size_t
1011
1936d2a7
NC
1012/* Round all values passed to malloc up, by default to a multiple of
1013 sizeof(size_t)
1014*/
1015#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1016#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1017#endif
1018
f1200559
WH
1019/* sv_grow() will expand strings by at least a certain percentage of
1020 the previously *used* length to avoid excessive calls to realloc().
1021 The default is 25% of the current length.
1022*/
1023#ifndef PERL_STRLEN_EXPAND_SHIFT
1024# define PERL_STRLEN_EXPAND_SHIFT 2
1025#endif
1026
51371543
GS
1027#if defined(STANDARD_C) && defined(I_STDDEF)
1028# include <stddef.h>
1029# define STRUCT_OFFSET(s,m) offsetof(s,m)
1030#else
1031# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1032#endif
1033
9969cdde 1034#ifndef __SYMBIAN32__
27da23d5
JH
1035# if defined(I_STRING) || defined(__cplusplus)
1036# include <string.h>
1037# else
1038# include <strings.h>
1039# endif
51371543
GS
1040#endif
1041
55497cff
PP
1042/* This comes after <stdlib.h> so we don't try to change the standard
1043 * library prototypes; we'll use our own in proto.h instead. */
03a14243 1044
4633a7c4 1045#ifdef MYMALLOC
86058a2d 1046# ifdef PERL_POLLUTE_MALLOC
ee13e175 1047# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
1048# define Perl_malloc malloc
1049# define Perl_calloc calloc
1050# define Perl_realloc realloc
1051# define Perl_mfree free
ee13e175 1052# endif
86058a2d
GS
1053# else
1054# define EMBEDMYMALLOC /* for compatibility */
1055# endif
827e134a 1056
651b9576
GS
1057# define safemalloc Perl_malloc
1058# define safecalloc Perl_calloc
1059# define saferealloc Perl_realloc
1060# define safefree Perl_mfree
22f7c9c9
JH
1061# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
1062 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
1063 code; \
1064 } STMT_END
1065# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1066 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1067# define panic_write2(s) write(2, s, strlen(s))
1068# define CHECK_MALLOC_TAINT(newval) \
1069 CHECK_MALLOC_TOO_LATE_FOR_( \
1070 if (newval) { \
1071 panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n");\
1072 exit(1); })
22f7c9c9 1073# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 1074 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
1075 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1076 }} STMT_END;
f2517201
GS
1077#else /* MYMALLOC */
1078# define safemalloc safesysmalloc
1079# define safecalloc safesyscalloc
1080# define saferealloc safesysrealloc
1081# define safefree safesysfree
22f7c9c9
JH
1082# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1083# define CHECK_MALLOC_TAINT(newval) ((void)0)
1084# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 1085#endif /* MYMALLOC */
4633a7c4 1086
fe13d51d 1087/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 1088#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
1089#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1090#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1091#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1092
a0d0e21e
LW
1093#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
1094#define strchr index
1095#define strrchr rindex
1096#endif
1097
16d20bd9
AD
1098#ifdef I_MEMORY
1099# include <memory.h>
1100#endif
1101
fe14fcc3 1102#ifdef HAS_MEMCPY
85e6fe83 1103# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 1104# ifndef memcpy
20ce7b12 1105 extern char * memcpy (char*, char*, int);
ee0007ab
LW
1106# endif
1107# endif
1108#else
1109# ifndef memcpy
1110# ifdef HAS_BCOPY
1111# define memcpy(d,s,l) bcopy(s,d,l)
1112# else
1113# define memcpy(d,s,l) my_bcopy(s,d,l)
1114# endif
1115# endif
1116#endif /* HAS_MEMCPY */
fe14fcc3 1117
ee0007ab 1118#ifdef HAS_MEMSET
85e6fe83 1119# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1120# ifndef memset
20ce7b12 1121 extern char *memset (char*, int, int);
ee0007ab
LW
1122# endif
1123# endif
ee0007ab 1124#else
12ae5dfc 1125# undef memset
fc36a67e 1126# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1127#endif /* HAS_MEMSET */
1128
85e6fe83 1129#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1130# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1131# define memmove(d,s,l) bcopy(s,d,l)
1132# else
2304df62 1133# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1134# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1135# else
79072805 1136# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1137# endif
352d5a3a 1138# endif
d9d8d8de 1139#endif
ee0007ab 1140
36477c24
PP
1141#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1142# undef HAS_MEMCMP
1143#endif
1144
1145#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1146# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1147# ifndef memcmp
20ce7b12 1148 extern int memcmp (char*, char*, int);
ee0007ab
LW
1149# endif
1150# endif
36477c24 1151# ifdef BUGGY_MSC
7e4e8c89 1152# pragma function(memcmp)
36477c24 1153# endif
ee0007ab
LW
1154#else
1155# ifndef memcmp
ecfc5424 1156# define memcmp my_memcmp
352d5a3a 1157# endif
36477c24 1158#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1159
fc36a67e 1160#ifndef memzero
c635e13b
PP
1161# ifdef HAS_MEMSET
1162# define memzero(d,l) memset(d,0,l)
79072805 1163# else
c635e13b
PP
1164# ifdef HAS_BZERO
1165# define memzero(d,l) bzero(d,l)
79072805 1166# else
fc36a67e 1167# define memzero(d,l) my_bzero(d,l)
79072805
LW
1168# endif
1169# endif
d9d8d8de 1170#endif
378cc40b 1171
2f42fcb0 1172#ifndef PERL_MICRO
0f27ced1
JH
1173#ifndef memchr
1174# ifndef HAS_MEMCHR
1175# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1176# endif
1177#endif
2f42fcb0 1178#endif
0f27ced1 1179
36477c24
PP
1180#ifndef HAS_BCMP
1181# ifndef bcmp
1182# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1183# endif
36477c24 1184#endif /* !HAS_BCMP */
378cc40b 1185
ae986130 1186#ifdef I_NETINET_IN
79072805 1187# include <netinet/in.h>
ae986130
LW
1188#endif
1189
28e8609d
JH
1190#ifdef I_ARPA_INET
1191# include <arpa/inet.h>
1192#endif
1193
84902520
TB
1194#if defined(SF_APPEND) && defined(USE_SFIO) && defined(I_SFIO)
1195/* <sfio.h> defines SF_APPEND and <sys/stat.h> might define SF_APPEND
1196 * (the neo-BSD seem to do this). */
1197# undef SF_APPEND
1198#endif
1199
1aef975c 1200#ifdef I_SYS_STAT
84902520 1201# include <sys/stat.h>
1aef975c 1202#endif
79072805 1203
287a962e
JD
1204/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1205 This definition should ideally go into win32/win32.h, but S_IFIFO is
1206 used later here in perl.h before win32/win32.h is being included. */
1207#if !defined(S_IFIFO) && defined(_S_IFIFO)
1208# define S_IFIFO _S_IFIFO
1209#endif
1210
cc3315ba 1211/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1212 like UTekV) are broken, sometimes giving false positives. Undefine
1213 them here and let the code below set them to proper values.
1214
1215 The ghs macro stands for GreenHills Software C-1.8.5 which
1216 is the C compiler for sysV88 and the various derivatives.
1217 This header file bug is corrected in gcc-2.5.8 and later versions.
1218 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1219
cc3315ba 1220#if defined(m88k) && defined(ghs)
79072805
LW
1221# undef S_ISDIR
1222# undef S_ISCHR
1223# undef S_ISBLK
1224# undef S_ISREG
1225# undef S_ISFIFO
1226# undef S_ISLNK
ee0007ab 1227#endif
135863df 1228
663a0e37
LW
1229#ifdef I_TIME
1230# include <time.h>
ffed7fef 1231#endif
663a0e37 1232
fe14fcc3 1233#ifdef I_SYS_TIME
85e6fe83 1234# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1235# define KERNEL
1236# endif
1237# include <sys/time.h>
85e6fe83 1238# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1239# undef KERNEL
1240# endif
a687059c 1241#endif
135863df 1242
55497cff 1243#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1244# include <sys/times.h>
d9d8d8de 1245#endif
8d063cd8 1246
fe14fcc3 1247#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1248# undef HAS_STRERROR
663a0e37
LW
1249#endif
1250
1251#include <errno.h>
1e743fda 1252
acfe0abc 1253#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1254# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1255#endif
1256
8cfab5ff 1257/* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
00f254e2 1258 * This is important for using IPv6.
8cfab5ff
JH
1259 * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1260 * a bad idea since it breaks send() and recv(). */
1261#if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1262# define _SOCKADDR_LEN
1263#endif
1264
da70cfc6 1265#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1266# include <sys/socket.h>
1267# if defined(USE_SOCKS) && defined(I_SOCKS)
1268# if !defined(INCLUDE_PROTOTYPES)
1269# define INCLUDE_PROTOTYPES /* for <socks.h> */
1270# define PERL_SOCKS_NEED_PROTOTYPES
1271# endif
1272# include <socks.h>
1273# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1274# undef INCLUDE_PROTOTYPES
1275# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1276# endif
d460ef45 1277# endif
1e743fda 1278# ifdef I_NETDB
2986a63f
JH
1279# ifdef NETWARE
1280# include<stdio.h>
1281# endif
1e743fda
JH
1282# include <netdb.h>
1283# endif
1284# ifndef ENOTSOCK
1285# ifdef I_NET_ERRNO
1286# include <net/errno.h>
1287# endif
1288# endif
1289#endif
1290
fa0a29af 1291/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1292 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1293 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1294#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1295# if defined(__THROW) && defined(__GLIBC__)
1296int sockatmark(int) __THROW;
1297# else
2ef53570 1298int sockatmark(int);
29820b6d 1299# endif
2ef53570
JH
1300#endif
1301
7e827271 1302#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
1303EXTERN_C int fchdir(int);
1304EXTERN_C int flock(int, int);
1305EXTERN_C int fseeko(FILE *, off_t, int);
1306EXTERN_C off_t ftello(FILE *);
1307#endif
1308
7e827271 1309#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1310EXTERN_C char *crypt(const char *, const char *);
7e827271 1311EXTERN_C char **environ;
1ccb7c8d
JH
1312#endif
1313
83a6ff2e 1314#if defined(__cplusplus)
944c4fda 1315# if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__)
b91fbb93 1316EXTERN_C char **environ;
83a6ff2e 1317# elif defined(__CYGWIN__)
667e2948
SP
1318EXTERN_C char *crypt(const char *, const char *);
1319#endif
83a6ff2e 1320#endif
667e2948 1321
1e743fda
JH
1322#ifdef SETERRNO
1323# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1324#endif
f86702cc
PP
1325
1326#ifdef VMS
1327# define SETERRNO(errcode,vmserrcode) \
1328 STMT_START { \
1329 set_errno(errcode); \
1330 set_vaxc_errno(vmserrcode); \
1331 } STMT_END
4ee39169
CS
1332# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1333# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1334# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1335# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1336
93189314
JH
1337# define LIB_INVARG LIB$_INVARG
1338# define RMS_DIR RMS$_DIR
1339# define RMS_FAC RMS$_FAC
1340# define RMS_FEX RMS$_FEX
1341# define RMS_FNF RMS$_FNF
1342# define RMS_IFI RMS$_IFI
1343# define RMS_ISI RMS$_ISI
1344# define RMS_PRV RMS$_PRV
1345# define SS_ACCVIO SS$_ACCVIO
1346# define SS_DEVOFFLINE SS$_DEVOFFLINE
1347# define SS_IVCHAN SS$_IVCHAN
1348# define SS_NORMAL SS$_NORMAL
748a9306 1349#else
aba27d88 1350# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
4ee39169
CS
1351# define dSAVEDERRNO int saved_errno
1352# define dSAVE_ERRNO int saved_errno = errno
1353# define SAVE_ERRNO (saved_errno = errno)
1354# define RESTORE_ERRNO (errno = saved_errno)
1355
93189314
JH
1356# define LIB_INVARG 0
1357# define RMS_DIR 0
1358# define RMS_FAC 0
1359# define RMS_FEX 0
1360# define RMS_FNF 0
1361# define RMS_IFI 0
1362# define RMS_ISI 0
1363# define RMS_PRV 0
1364# define SS_ACCVIO 0
1365# define SS_DEVOFFLINE 0
1366# define SS_IVCHAN 0
1367# define SS_NORMAL 0
748a9306 1368#endif
ed6116ce 1369
f5fa9033 1370#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1371
1372#define CLEAR_ERRSV() STMT_START { \
1373 if (!GvSV(PL_errgv)) { \
1374 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1375 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1376 SvREFCNT_dec(GvSV(PL_errgv)); \
1377 GvSV(PL_errgv) = newSVpvs(""); \
1378 } else { \
1379 SV *const errsv = GvSV(PL_errgv); \
1380 sv_setpvs(errsv, ""); \
1381 if (SvMAGICAL(errsv)) { \
1382 mg_free(errsv); \
1383 } \
1384 SvPOK_only(errsv); \
1385 } \
1386 } STMT_END
1387
1388
414bf5ae
MHM
1389#ifdef PERL_CORE
1390# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1391# define DEFSV_set(sv) \
1392 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1393# define SAVE_DEFSV \
1394 ( \
1395 save_gp(PL_defgv, 0), \
1396 GvINTRO_off(PL_defgv), \
1397 SAVEGENERICSV(GvSV(PL_defgv)), \
1398 GvSV(PL_defgv) = NULL \
1399 )
414bf5ae
MHM
1400#else
1401# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1402# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1403# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1404#endif
38a03e6e 1405
98eae8f5
GS
1406#define ERRHV GvHV(PL_errgv) /* XXX unused, here for compatibility */
1407
55497cff 1408#ifndef errno
5ff3f7a4
GS
1409 extern int errno; /* ANSI allows errno to be an lvalue expr.
1410 * For example in multithreaded environments
1411 * something like this might happen:
1412 * extern int *_errno(void);
1413 * #define errno (*_errno()) */
d9d8d8de 1414#endif
663a0e37 1415
2304df62 1416#ifdef HAS_STRERROR
2242159b 1417#ifndef DONT_DECLARE_STD
a0d0e21e 1418# ifdef VMS
20ce7b12 1419 char *strerror (int,...);
a0d0e21e 1420# else
20ce7b12 1421 char *strerror (int);
a0d0e21e 1422# endif
2242159b 1423#endif
2304df62
AD
1424# ifndef Strerror
1425# define Strerror strerror
1426# endif
1427#else
1428# ifdef HAS_SYS_ERRLIST
79072805
LW
1429 extern int sys_nerr;
1430 extern char *sys_errlist[];
2304df62
AD
1431# ifndef Strerror
1432# define Strerror(e) \
79072805 1433 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 1434# endif
79072805 1435# endif
35c8bce7 1436#endif
663a0e37 1437
2304df62 1438#ifdef I_SYS_IOCTL
79072805
LW
1439# ifndef _IOCTL_
1440# include <sys/ioctl.h>
1441# endif
a687059c
LW
1442#endif
1443
ee0007ab 1444#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1445# ifdef HAS_SOCKETPAIR
1446# undef HAS_SOCKETPAIR
1447# endif
2304df62
AD
1448# ifdef I_NDBM
1449# undef I_NDBM
79072805 1450# endif
a687059c
LW
1451#endif
1452
02fc2eee
NC
1453#ifndef HAS_SOCKETPAIR
1454# ifdef HAS_SOCKET
1455# define socketpair Perl_my_socketpair
1456# endif
1457#endif
1458
a687059c 1459#if INTSIZE == 2
79072805
LW
1460# define htoni htons
1461# define ntohi ntohs
a687059c 1462#else
79072805
LW
1463# define htoni htonl
1464# define ntohi ntohl
a687059c
LW
1465#endif
1466
a0d0e21e 1467/* Configure already sets Direntry_t */
35c8bce7 1468#if defined(I_DIRENT)
663a0e37 1469# include <dirent.h>
8f1f23e8
W
1470 /* NeXT needs dirent + sys/dir.h */
1471# if defined(I_SYS_DIR) && (defined(NeXT) || defined(__NeXT__))
a0d0e21e
LW
1472# include <sys/dir.h>
1473# endif
ae986130 1474#else
fe14fcc3 1475# ifdef I_SYS_NDIR
79a0689e 1476# include <sys/ndir.h>
663a0e37 1477# else
fe14fcc3 1478# ifdef I_SYS_DIR
79a0689e
LW
1479# ifdef hp9000s500
1480# include <ndir.h> /* may be wrong in the future */
1481# else
1482# include <sys/dir.h>
1483# endif
663a0e37
LW
1484# endif
1485# endif
4633a7c4 1486#endif
a687059c 1487
12ae5dfc
JH
1488#ifdef PERL_MICRO
1489# ifndef DIR
1490# define DIR void
1491# endif
1492#endif
1493
352d5a3a
LW
1494#ifdef FPUTS_BOTCH
1495/* work around botch in SunOS 4.0.1 and 4.0.2 */
1496# ifndef fputs
79072805 1497# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW
1498# endif
1499#endif
1500
c623bd54
LW
1501/*
1502 * The following gobbledygook brought to you on behalf of __STDC__.
1503 * (I could just use #ifndef __STDC__, but this is more bulletproof
1504 * in the face of half-implementations.)
1505 */
1506
7114a2d2 1507#if defined(I_SYSMODE) && !defined(PERL_MICRO)
ca6e1c26
JH
1508#include <sys/mode.h>
1509#endif
1510
c623bd54
LW
1511#ifndef S_IFMT
1512# ifdef _S_IFMT
1513# define S_IFMT _S_IFMT
1514# else
1515# define S_IFMT 0170000
1516# endif
1517#endif
1518
1519#ifndef S_ISDIR
1520# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1521#endif
1522
1523#ifndef S_ISCHR
1524# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1525#endif
1526
1527#ifndef S_ISBLK
fe14fcc3
LW
1528# ifdef S_IFBLK
1529# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1530# else
1531# define S_ISBLK(m) (0)
1532# endif
c623bd54
LW
1533#endif
1534
1535#ifndef S_ISREG
1536# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1537#endif
1538
1539#ifndef S_ISFIFO
fe14fcc3
LW
1540# ifdef S_IFIFO
1541# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1542# else
1543# define S_ISFIFO(m) (0)
1544# endif
c623bd54
LW
1545#endif
1546
1547#ifndef S_ISLNK
1548# ifdef _S_ISLNK
1549# define S_ISLNK(m) _S_ISLNK(m)
1550# else
1551# ifdef _S_IFLNK
1552# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1553# else
1554# ifdef S_IFLNK
1555# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1556# else
1557# define S_ISLNK(m) (0)
1558# endif
1559# endif
1560# endif
1561#endif
1562
1563#ifndef S_ISSOCK
1564# ifdef _S_ISSOCK
1565# define S_ISSOCK(m) _S_ISSOCK(m)
1566# else
1567# ifdef _S_IFSOCK
1568# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1569# else
1570# ifdef S_IFSOCK
1571# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1572# else
1573# define S_ISSOCK(m) (0)
1574# endif
1575# endif
1576# endif
1577#endif
1578
1579#ifndef S_IRUSR
1580# ifdef S_IREAD
1581# define S_IRUSR S_IREAD
1582# define S_IWUSR S_IWRITE
1583# define S_IXUSR S_IEXEC
1584# else
1585# define S_IRUSR 0400
1586# define S_IWUSR 0200
1587# define S_IXUSR 0100
1588# endif
fac7cdfc 1589#endif
1590
1591#ifndef S_IRGRP
1592# ifdef S_IRUSR
1593# define S_IRGRP (S_IRUSR>>3)
1594# define S_IWGRP (S_IWUSR>>3)
1595# define S_IXGRP (S_IXUSR>>3)
1596# else
1597# define S_IRGRP 0040
1598# define S_IWGRP 0020
1599# define S_IXGRP 0010
1600# endif
1601#endif
1602
1603#ifndef S_IROTH
1604# ifdef S_IRUSR
1605# define S_IROTH (S_IRUSR>>6)
1606# define S_IWOTH (S_IWUSR>>6)
1607# define S_IXOTH (S_IXUSR>>6)
1608# else
1609# define S_IROTH 0040
1610# define S_IWOTH 0020
1611# define S_IXOTH 0010
1612# endif
c623bd54
LW
1613#endif
1614
1615#ifndef S_ISUID
1616# define S_ISUID 04000
1617#endif
1618
1619#ifndef S_ISGID
1620# define S_ISGID 02000
1621#endif
1622
ca6e1c26
JH
1623#ifndef S_IRWXU
1624# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1625#endif
ca6e1c26
JH
1626
1627#ifndef S_IRWXG
1628# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1629#endif
ca6e1c26
JH
1630
1631#ifndef S_IRWXO
1632# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1633#endif
ca6e1c26 1634
b6c36746 1635/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1636 * which would get included through <sys/file.h >, but that is 3000
1637 * lines in the future. --jhi */
1638
b6c36746 1639#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1640# define S_IREAD S_IRUSR
1641#endif
1642
b6c36746 1643#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1644# define S_IWRITE S_IWUSR
1645#endif
1646
1647#ifndef S_IEXEC
1648# define S_IEXEC S_IXUSR
1649#endif
1650
79072805
LW
1651#ifdef ff_next
1652# undef ff_next
352d5a3a
LW
1653#endif
1654
a0d0e21e 1655#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1656# define SLOPPYDIVIDE
1657#endif
1658
748a9306
LW
1659#ifdef UV
1660#undef UV
1661#endif
1662
ce582cee
NC
1663/* For the times when you want the return value of sprintf, and you want it
1664 to be the length. Can't have a thread variable passed in, because C89 has
1665 no varargs macros.
1666*/
1667#ifdef SPRINTF_RETURNS_STRLEN
1668# define my_sprintf sprintf
1669#else
1670# define my_sprintf Perl_my_sprintf
1671#endif
1672
5b692037
JH
1673/*
1674 * If we have v?snprintf() and the C99 variadic macros, we can just
1675 * use just the v?snprintf(). It is nice to try to trap the buffer
1676 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1677 * gcc statement expressions, then use the function wrappers which try
1678 * to trap the overflow. If we can use the gcc statement expressions,
1679 * we can try that even with the version that uses the C99 variadic
1680 * macros.
5b692037
JH
1681 */
1682
1208b3dd
JH
1683/* Note that we do not check against snprintf()/vsnprintf() returning
1684 * negative values because that is non-standard behaviour and we use
1685 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1686 * that should be true only if the snprintf()/vsnprintf() are true
1687 * to the standard. */
1688
dfeee9b1 1689#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1690# ifdef PERL_USE_GCC_BRACE_GROUPS
12e82c57 1691# define my_snprintf(buffer, len, ...) ({ int __len__ = snprintf(buffer, len, __VA_ARGS__); if ((len) > 0 && (Size_t)__len__ >= (len)) Perl_croak_nocontext("panic: snprintf buffer overflow"); __len__; })
1208b3dd 1692# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1693# else
1694# define my_snprintf(buffer, len, ...) snprintf(buffer, len, __VA_ARGS__)
1695# endif
1696#else
1697# define my_snprintf Perl_my_snprintf
1208b3dd 1698# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1699#endif
1700
dfeee9b1 1701#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1702# ifdef PERL_USE_GCC_BRACE_GROUPS
9e440ecc 1703# define my_vsnprintf(buffer, len, ...) ({ int __len__ = vsnprintf(buffer, len, __VA_ARGS__); if ((len) > 0 && (Size_t)__len__ >= (Size_t)(len)) Perl_croak_nocontext("panic: vsnprintf buffer overflow"); __len__; })
1208b3dd 1704# define PERL_MY_VSNPRINTF_GUARDED
5b692037
JH
1705# else
1706# define my_vsnprintf(buffer, len, ...) vsnprintf(buffer, len, __VA_ARGS__)
1707# endif
1708#else
1709# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1710# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1711#endif
d9fad198 1712
a6cc4119
SP
1713#ifdef HAS_STRLCAT
1714# define my_strlcat strlcat
1715#else
1716# define my_strlcat Perl_my_strlcat
1717#endif
1718
1719#ifdef HAS_STRLCPY
1720# define my_strlcpy strlcpy
1721#else
1722# define my_strlcpy Perl_my_strlcpy
1723#endif
1724
05f13f53 1725/*
27d4fb96
PP
1726 The IV type is supposed to be long enough to hold any integral
1727 value or a pointer.
1728 --Andy Dougherty August 1996
1729*/
1730
a22e52b9
JH
1731typedef IVTYPE IV;
1732typedef UVTYPE UV;
8175356b 1733
10cc9d2a 1734#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1735# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1736# define IV_MAX INT64_MAX
1737# define IV_MIN INT64_MIN
1738# define UV_MAX UINT64_MAX
cae7ae48
JH
1739# ifndef UINT64_MIN
1740# define UINT64_MIN 0
1741# endif
5ff3f7a4
GS
1742# define UV_MIN UINT64_MIN
1743# else
1744# define IV_MAX PERL_QUAD_MAX
1745# define IV_MIN PERL_QUAD_MIN
1746# define UV_MAX PERL_UQUAD_MAX
1747# define UV_MIN PERL_UQUAD_MIN
1748# endif
cf2093f6
JH
1749# define IV_IS_QUAD
1750# define UV_IS_QUAD
79072805 1751#else
8175356b 1752# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1753# define IV_MAX INT32_MAX
1754# define IV_MIN INT32_MIN
716026f9
DL
1755# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1756# define UV_MAX UINT32_MAX
1757# else
1758# define UV_MAX 4294967295U
1759# endif
cae7ae48
JH
1760# ifndef UINT32_MIN
1761# define UINT32_MIN 0
1762# endif
5ff3f7a4
GS
1763# define UV_MIN UINT32_MIN
1764# else
1765# define IV_MAX PERL_LONG_MAX
1766# define IV_MIN PERL_LONG_MIN
1767# define UV_MAX PERL_ULONG_MAX
1768# define UV_MIN PERL_ULONG_MIN
1769# endif
8175356b 1770# if IVSIZE == 8
cf2093f6
JH
1771# define IV_IS_QUAD
1772# define UV_IS_QUAD
de1c2614
JH
1773# ifndef HAS_QUAD
1774# define HAS_QUAD
1775# endif
cf2093f6
JH
1776# else
1777# undef IV_IS_QUAD
1778# undef UV_IS_QUAD
de1c2614 1779# undef HAS_QUAD
cf2093f6 1780# endif
79072805 1781#endif
d7d93a81 1782
1109a392
MHM
1783#ifndef HAS_QUAD
1784# undef PERL_NEED_MY_HTOLE64
1785# undef PERL_NEED_MY_LETOH64
1786# undef PERL_NEED_MY_HTOBE64
1787# undef PERL_NEED_MY_BETOH64
1788#endif
1789
cae7ae48 1790#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1791#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1792
28e5dec8 1793#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1794#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1795#endif
1796
d460ef45 1797/*
26bb67e2
JH
1798 * The macros INT2PTR and NUM2PTR are (despite their names)
1799 * bi-directional: they will convert int/float to or from pointers.
1800 * However the conversion to int/float are named explicitly:
1801 * PTR2IV, PTR2UV, PTR2NV.
1802 *
1803 * For int conversions we do not need two casts if pointers are
1804 * the same size as IV and UV. Otherwise we need an explicit
1805 * cast (PTRV) to avoid compiler warnings.
1806 */
56431972
RB
1807#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1808# define PTRV UV
1809# define INT2PTR(any,d) (any)(d)
1810#else
d460ef45 1811# if PTRSIZE == LONGSIZE
56431972 1812# define PTRV unsigned long
e91e3b10 1813# define PTR2ul(p) (unsigned long)(p)
42718184 1814# else
56431972 1815# define PTRV unsigned
42718184 1816# endif
e91e3b10
RB
1817#endif
1818
1819#ifndef INT2PTR
56431972 1820# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1821#endif
e91e3b10
RB
1822
1823#ifndef PTR2ul
1824# define PTR2ul(p) INT2PTR(unsigned long,p)
1825#endif
1826
56431972
RB
1827#define NUM2PTR(any,d) (any)(PTRV)(d)
1828#define PTR2IV(p) INT2PTR(IV,p)
1829#define PTR2UV(p) INT2PTR(UV,p)
1830#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1831#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1832
8141890a
JH
1833/* According to strict ANSI C89 one cannot freely cast between
1834 * data pointers and function (code) pointers. There are at least
1835 * two ways around this. One (used below) is to do two casts,
1836 * first the other pointer to an (unsigned) integer, and then
1837 * the integer to the other pointer. The other way would be
1838 * to use unions to "overlay" the pointers. For an example of
1839 * the latter technique, see union dirpu in struct xpvio in sv.h.
1840 * The only feasible use is probably temporarily storing
1841 * function pointers in a data pointer (such as a void pointer). */
1842
e91e3b10
RB
1843#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1844#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1845
65202027 1846#ifdef USE_LONG_DOUBLE
1048ea30
JH
1847# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1848# define LONG_DOUBLE_EQUALS_DOUBLE
1849# endif
68d4903c 1850# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1851# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1852# endif
1853#endif
1854
2d4389e4
JH
1855#ifdef OVR_DBL_DIG
1856/* Use an overridden DBL_DIG */
1857# ifdef DBL_DIG
1858# undef DBL_DIG
1859# endif
1860# define DBL_DIG OVR_DBL_DIG
1861#else
1862/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1863 default value for printing floating point numbers in Gconvert
1864 (see config.h). (It also has other uses, such as figuring out if
1865 a given precision of printing can be done with a double instead of
1866 a long double - Allen).
2d4389e4
JH
1867*/
1868#ifdef I_LIMITS
1869#include <limits.h>
1870#endif
1871#ifdef I_FLOAT
1872#include <float.h>
1873#endif
1874#ifndef HAS_DBL_DIG
1875#define DBL_DIG 15 /* A guess that works lots of places */
1876#endif
1877#endif
1878
1879#ifdef OVR_LDBL_DIG
1880/* Use an overridden LDBL_DIG */
1881# ifdef LDBL_DIG
1882# undef LDBL_DIG
1883# endif
1884# define LDBL_DIG OVR_LDBL_DIG
1885#else
1886/* The following is all to get LDBL_DIG, in order to pick a nice
1887 default value for printing floating point numbers in Gconvert.
1888 (see config.h)
1889*/
68d4903c
JH
1890# ifdef I_LIMITS
1891# include <limits.h>
1892# endif
1893# ifdef I_FLOAT
1894# include <float.h>
1895# endif
1896# ifndef HAS_LDBL_DIG
1897# if LONG_DOUBLESIZE == 10
1898# define LDBL_DIG 18 /* assume IEEE */
1899# else
1900# if LONG_DOUBLESIZE == 12
1901# define LDBL_DIG 18 /* gcc? */
1902# else
1903# if LONG_DOUBLESIZE == 16
1904# define LDBL_DIG 33 /* assume IEEE */
1905# else
1906# if LONG_DOUBLESIZE == DOUBLESIZE
1907# define LDBL_DIG DBL_DIG /* bummer */
1908# endif
1909# endif
1910# endif
1911# endif
1912# endif
2d4389e4
JH
1913#endif
1914
20f6aaab
AS
1915/*
1916 * This is for making sure we have a good DBL_MAX value, if possible,
1917 * either for usage as NV_MAX or for usage in figuring out if we can
1918 * fit a given long double into a double, if bug-fixing makes it
1919 * necessary to do so. - Allen <allens@cpan.org>
1920 */
1921
205f51d8
AS
1922#ifdef I_LIMITS
1923# include <limits.h>
20f6aaab
AS
1924#endif
1925
205f51d8
AS
1926#ifdef I_VALUES
1927# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1928# include <values.h>
1929# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1930# define DBL_MAX MAXDOUBLE
1931# endif
1932# if defined(MINDOUBLE) && !defined(DBL_MIN)
1933# define DBL_MIN MINDOUBLE
1934# endif
1935# endif
1936#endif /* defined(I_VALUES) */
1937
a22e52b9 1938typedef NVTYPE NV;
8175356b 1939
792d8dab
JH
1940#ifdef I_IEEEFP
1941# include <ieeefp.h>
1942#endif
923fc586 1943
65202027 1944#ifdef USE_LONG_DOUBLE
923fc586
JH
1945# ifdef I_SUNMATH
1946# include <sunmath.h>
1947# endif
2d4389e4 1948# define NV_DIG LDBL_DIG
d6c14000
JH
1949# ifdef LDBL_MANT_DIG
1950# define NV_MANT_DIG LDBL_MANT_DIG
1951# endif
06fc1729
JH
1952# ifdef LDBL_MIN
1953# define NV_MIN LDBL_MIN
1954# endif
1955# ifdef LDBL_MAX
1956# define NV_MAX LDBL_MAX
1957# endif
1958# ifdef LDBL_MIN_10_EXP
1959# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1960# endif
1961# ifdef LDBL_MAX_10_EXP
1962# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1963# endif
1964# ifdef LDBL_EPSILON
1965# define NV_EPSILON LDBL_EPSILON
1966# endif
f4a14a62
JH
1967# ifdef LDBL_MAX
1968# define NV_MAX LDBL_MAX
20f6aaab 1969/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62
JH
1970# else
1971# ifdef HUGE_VALL
1972# define NV_MAX HUGE_VALL
1973# else
1974# ifdef HUGE_VAL
1975# define NV_MAX ((NV)HUGE_VAL)
1976# endif
1977# endif
1978# endif
68d4903c 1979# ifdef HAS_SQRTL
68d4903c
JH
1980# define Perl_cos cosl
1981# define Perl_sin sinl
1982# define Perl_sqrt sqrtl
1983# define Perl_exp expl
1984# define Perl_log logl
1985# define Perl_atan2 atan2l
1986# define Perl_pow powl
1987# define Perl_floor floorl
1bbae031 1988# define Perl_ceil ceill
68d4903c
JH
1989# define Perl_fmod fmodl
1990# endif
a3540c92
JH
1991/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1992# ifdef HAS_MODFL
1993# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1994/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1995 prototype in <math.h> */
1996# ifndef HAS_MODFL_PROTO
a221a8a5 1997EXTERN_C long double modfl(long double, long double *);
51997bc3 1998# endif
03476e8e
JH
1999# else
2000# if defined(HAS_AINTL) && defined(HAS_COPYSIGNL)
55954f19 2001 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e
JH
2002# define Perl_modf(x,y) Perl_my_modfl(x,y)
2003# endif
a3540c92
JH
2004# endif
2005# ifdef HAS_FREXPL
dff3e0b8 2006# define Perl_frexp(x,y) frexpl(x,y)
03476e8e
JH
2007# else
2008# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
55954f19 2009 extern long double Perl_my_frexpl(long double x, int *e);
03476e8e
JH
2010# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
2011# endif
a3540c92 2012# endif
38dbb4c5 2013# ifndef Perl_isnan
758a5d79
JH
2014# ifdef HAS_ISNANL
2015# define Perl_isnan(x) isnanl(x)
2016# endif
2017# endif
2018# ifndef Perl_isinf
2019# ifdef HAS_FINITEL
2020# define Perl_isinf(x) !(finitel(x)||Perl_isnan(x))
a3540c92
JH
2021# endif
2022# endif
65202027 2023#else
2d4389e4 2024# define NV_DIG DBL_DIG
d6c14000
JH
2025# ifdef DBL_MANT_DIG
2026# define NV_MANT_DIG DBL_MANT_DIG
2027# endif
06fc1729
JH
2028# ifdef DBL_MIN
2029# define NV_MIN DBL_MIN
2030# endif
2031# ifdef DBL_MAX
2032# define NV_MAX DBL_MAX
2033# endif
2034# ifdef DBL_MIN_10_EXP
2035# define NV_MIN_10_EXP DBL_MIN_10_EXP
2036# endif
2037# ifdef DBL_MAX_10_EXP
2038# define NV_MAX_10_EXP DBL_MAX_10_EXP
2039# endif
2040# ifdef DBL_EPSILON
2041# define NV_EPSILON DBL_EPSILON
2042# endif
205f51d8 2043# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2044# define NV_MAX DBL_MAX
2045# define NV_MIN DBL_MIN
2046# else
2047# ifdef HUGE_VAL
2048# define NV_MAX HUGE_VAL
2049# endif
2050# endif
65202027
DS
2051# define Perl_cos cos
2052# define Perl_sin sin
2053# define Perl_sqrt sqrt
2054# define Perl_exp exp
2055# define Perl_log log
2056# define Perl_atan2 atan2
2057# define Perl_pow pow
2058# define Perl_floor floor
1bbae031 2059# define Perl_ceil ceil
65202027 2060# define Perl_fmod fmod
a3540c92 2061# define Perl_modf(x,y) modf(x,y)
dff3e0b8 2062# define Perl_frexp(x,y) frexp(x,y)
758a5d79
JH
2063#endif
2064
2065/* rumor has it that Win32 has _fpclass() */
2066
205f51d8
AS
2067/* SGI has fpclassl... but not with the same result values,
2068 * and it's via a typedef (not via #define), so will need to redo Configure
2069 * to use. Not worth the trouble, IMO, at least until the below is used
2070 * more places. Also has fp_class_l, BTW, via fp_class.h. Feel free to check
2071 * with me for the SGI manpages, SGI testing, etcetera, if you want to
2072 * try getting this to work with IRIX. - Allen <allens@cpan.org> */
2073
758a5d79
JH
2074#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
2075# ifdef I_IEEFP
2076# include <ieeefp.h>
2077# endif
2078# ifdef I_FP
2079# include <fp.h>
2080# endif
2081# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
2082# define Perl_fp_class() fpclassl(x)
2083# else
2084# define Perl_fp_class() fpclass(x)
2085# endif
2086# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2087# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2088# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_CLASS_SNAN||Perl_fp_class(x)==FP_CLASS_QNAN)
2089# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2090# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2091# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_CLASS_NINF||Perl_fp_class(x)==FP_CLASS_PINF)
2092# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2093# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2094# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_CLASS_NNORM||Perl_fp_class(x)==FP_CLASS_PNORM)
2095# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2096# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2097# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM||Perl_fp_class(x)==FP_CLASS_PDENORM)
2098# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2099# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
2100# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_CLASS_NZERO||Perl_fp_class(x)==FP_CLASS_PZERO)
2101#endif
2102
7114a2d2 2103#if !defined(Perl_fp_class) && defined(HAS_FP_CLASS) && !defined(PERL_MICRO)
758a5d79
JH
2104# include <math.h>
2105# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2106# include <fp_class.h>
2107# endif
2108# define Perl_fp_class(x) fp_class(x)
2109# define Perl_fp_class_snan(x) (fp_class(x)==FP_SNAN)
2110# define Perl_fp_class_qnan(x) (fp_class(x)==FP_QNAN)
2111# define Perl_fp_class_nan(x) (fp_class(x)==FP_SNAN||fp_class(x)==FP_QNAN)
2112# define Perl_fp_class_ninf(x) (fp_class(x)==FP_NEG_INF)
2113# define Perl_fp_class_pinf(x) (fp_class(x)==FP_POS_INF)
2114# define Perl_fp_class_inf(x) (fp_class(x)==FP_NEG_INF||fp_class(x)==FP_POS_INF)
2115# define Perl_fp_class_nnorm(x) (fp_class(x)==FP_NEG_NORM)
2116# define Perl_fp_class_pnorm(x) (fp_class(x)==FP_POS_NORM)
2117# define Perl_fp_class_norm(x) (fp_class(x)==FP_NEG_NORM||fp_class(x)==FP_POS_NORM)
2118# define Perl_fp_class_ndenorm(x) (fp_class(x)==FP_NEG_DENORM)
2119# define Perl_fp_class_pdenorm(x) (fp_class(x)==FP_POS_DENORM)
2120# define Perl_fp_class_denorm(x) (fp_class(x)==FP_NEG_DENORM||fp_class(x)==FP_POS_DENORM)
2121# define Perl_fp_class_nzero(x) (fp_class(x)==FP_NEG_ZERO)
2122# define Perl_fp_class_pzero(x) (fp_class(x)==FP_POS_ZERO)
2123# define Perl_fp_class_zero(x) (fp_class(x)==FP_NEG_ZERO||fp_class(x)==FP_POS_ZERO)
2124#endif
2125
2126#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2127# include <math.h>
2128# define Perl_fp_class(x) fpclassify(x)
38dbb4c5 2129# define Perl_fp_class_nan(x) (fp_classify(x)==FP_SNAN||fp_classify(x)==FP_QNAN)
758a5d79
JH
2130# define Perl_fp_class_inf(x) (fp_classify(x)==FP_INFINITE)
2131# define Perl_fp_class_norm(x) (fp_classify(x)==FP_NORMAL)
2132# define Perl_fp_class_denorm(x) (fp_classify(x)==FP_SUBNORMAL)
2133# define Perl_fp_class_zero(x) (fp_classify(x)==FP_ZERO)
2134#endif
2135
2136#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2137# include <math.h>
2138# ifndef _cplusplus
2139# define Perl_fp_class(x) class(x)
2140# else
2141# define Perl_fp_class(x) _class(x)
2142# endif
2143# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2144# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2145# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_SNAN||Perl_fp_class(x)==FP_QNAN)
2146# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2147# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2148# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_MINUS_INF||Perl_fp_class(x)==FP_PLUS_INF)
2149# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2150# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2151# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_MINUS_NORM||Perl_fp_class(x)==FP_PLUS_NORM)
2152# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2153# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2154# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM||Perl_fp_class(x)==FP_PLUS_DENORM)
2155# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2156# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2157# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_MINUS_ZERO||Perl_fp_class(x)==FP_PLUS_ZERO)
2158#endif
2159
2160/* rumor has it that Win32 has _isnan() */
2161
2162#ifndef Perl_isnan
a3540c92 2163# ifdef HAS_ISNAN
758a5d79
JH
2164# define Perl_isnan(x) isnan((NV)x)
2165# else
2166# ifdef Perl_fp_class_nan
2167# define Perl_isnan(x) Perl_fp_class_nan(x)
2168# else
2169# ifdef HAS_UNORDERED
2170# define Perl_isnan(x) unordered((x), 0.0)
2171# else
2172# define Perl_isnan(x) ((x)!=(x))
2173# endif
2174# endif
2175# endif
2176#endif
2177
ca6c63e1
JH
2178#ifdef UNDER_CE
2179int isnan(double d);
2180#endif
2181
758a5d79
JH
2182#ifndef Perl_isinf
2183# ifdef HAS_ISINF
2184# define Perl_isinf(x) isinf((NV)x)
a3540c92 2185# else
758a5d79
JH
2186# ifdef Perl_fp_class_inf
2187# define Perl_isinf(x) Perl_fp_class_inf(x)
2188# else
2189# define Perl_isinf(x) ((x)==NV_INF)
2190# endif
2191# endif
2192#endif
2193
2194#ifndef Perl_isfinite
2195# ifdef HAS_FINITE
2196# define Perl_isfinite(x) finite((NV)x)
2197# else
2198# ifdef HAS_ISFINITE
2199# define Perl_isfinite(x) isfinite(x)
2200# else
2201# ifdef Perl_fp_class_finite
2202# define Perl_isfinite(x) Perl_fp_class_finite(x)
2203# else
2204# define Perl_isfinite(x) !(Perl_is_inf(x)||Perl_is_nan(x))
2205# endif
2206# endif
a3540c92 2207# endif
65202027
DS
2208#endif
2209
a36244b7
JH
2210/* The default is to use Perl's own atof() implementation (in numeric.c).
2211 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2212 * it is however best to use the native implementation of atof.
2213 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2214 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2215 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2216 * you may need to be using a different function than atof! */
a36244b7
JH
2217
2218#ifndef USE_PERL_ATOF
2219# ifndef _UNICOS
2220# define USE_PERL_ATOF
2221# endif
2222#else
2223# if USE_PERL_ATOF == 0
2224# undef USE_PERL_ATOF
2225# endif
2226#endif
2227
2228#ifdef USE_PERL_ATOF
2229# define Perl_atof(s) Perl_my_atof(s)
2230# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2231#else
2232# define Perl_atof(s) (NV)atof(s)
2233# define Perl_atof2(s, n) ((n) = atof(s))
2234#endif
cf2093f6 2235
d460ef45 2236/* Previously these definitions used hardcoded figures.
760ac839
LW
2237 * It is hoped these formula are more portable, although
2238 * no data one way or another is presently known to me.
2239 * The "PERL_" names are used because these calculated constants
2240 * do not meet the ANSI requirements for LONG_MAX, etc., which
2241 * need to be constants acceptable to #if - kja
2242 * define PERL_LONG_MAX 2147483647L
2243 * define PERL_LONG_MIN (-LONG_MAX - 1)
2244 * define PERL ULONG_MAX 4294967295L
2245 */
2246
2247#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2248# include <limits.h>
760ac839 2249#endif
205f51d8 2250/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2251 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2252
99abf803
PP
2253/*
2254 * Try to figure out max and min values for the integral types. THE CORRECT
2255 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2256 * following hacks are used if neither limits.h or values.h provide them:
2257 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2258 * for types < int: (unsigned TYPE)~(unsigned)0
2259 * The argument to ~ must be unsigned so that later signed->unsigned
2260 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2261 * and it must not be smaller than int because ~ does integral promotion.
2262 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2263 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2264 * The latter is a hack which happens to work on some machines but
2265 * does *not* catch any random system, or things like integer types
2266 * with NaN if that is possible.
2267 *
2268 * All of the types are explicitly cast to prevent accidental loss of
2269 * numeric range, and in the hope that they will be less likely to confuse
2270 * over-eager optimizers.
2271 *
2272 */
27d4fb96 2273
99abf803
PP
2274#define PERL_UCHAR_MIN ((unsigned char)0)
2275
2276#ifdef UCHAR_MAX
2277# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2278#else
99abf803
PP
2279# ifdef MAXUCHAR
2280# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2281# else
99abf803 2282# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2283# endif
2284#endif
d460ef45 2285
99abf803
PP
2286/*
2287 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2288 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2289 * depending on local options. Until Configure detects this (or at least
2290 * detects whether the "signed" keyword is available) the CHAR ranges
2291 * will not be included. UCHAR functions normally.
2292 * - kja
2293 */
27d4fb96 2294
99abf803
PP
2295#define PERL_USHORT_MIN ((unsigned short)0)
2296
2297#ifdef USHORT_MAX
2298# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2299#else
99abf803
PP
2300# ifdef MAXUSHORT
2301# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2302# else
ef2f54b0
CB
2303# ifdef USHRT_MAX
2304# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2305# else
2306# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2307# endif
27d4fb96
PP
2308# endif
2309#endif
2310
27d4fb96 2311#ifdef SHORT_MAX
99abf803 2312# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2313#else
2314# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2315# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2316# else
ef2f54b0
CB
2317# ifdef SHRT_MAX
2318# define PERL_SHORT_MAX ((short)SHRT_MAX)
2319# else
2320# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2321# endif
27d4fb96
PP
2322# endif
2323#endif
2324
2325#ifdef SHORT_MIN
99abf803 2326# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2327#else
2328# ifdef MINSHORT
99abf803 2329# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2330# else
ef2f54b0
CB
2331# ifdef SHRT_MIN
2332# define PERL_SHORT_MIN ((short)SHRT_MIN)
2333# else
2334# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2335# endif
27d4fb96
PP
2336# endif
2337#endif
2338
99abf803
PP
2339#ifdef UINT_MAX
2340# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2341#else
99abf803
PP
2342# ifdef MAXUINT
2343# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2344# else
99abf803 2345# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2346# endif
2347#endif
2348
99abf803 2349#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2350
2351#ifdef INT_MAX
99abf803 2352# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2353#else
2354# ifdef MAXINT /* Often used in <values.h> */
99abf803 2355# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2356# else
99abf803 2357# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2358# endif
2359#endif
2360
2361#ifdef INT_MIN
99abf803 2362# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2363#else
2364# ifdef MININT
99abf803 2365# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2366# else
2367# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2368# endif
2369#endif
2370
99abf803
PP
2371#ifdef ULONG_MAX
2372# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2373#else
99abf803
PP
2374# ifdef MAXULONG
2375# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2376# else
99abf803 2377# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2378# endif
2379#endif
2380
99abf803 2381#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2382
760ac839 2383#ifdef LONG_MAX
99abf803 2384# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2385#else
2386# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2387# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2388# else
99abf803 2389# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2390# endif
2391#endif
2392
2393#ifdef LONG_MIN
99abf803 2394# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2395#else
2396# ifdef MINLONG
99abf803 2397# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2398# else
27d4fb96 2399# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2400# endif
2401#endif
2402
d7d93a81 2403#ifdef UV_IS_QUAD
99abf803 2404
99abf803 2405# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2406# define PERL_UQUAD_MIN ((UV)0)
99abf803 2407# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2408# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2409
79072805
LW
2410#endif
2411
830247a4 2412struct RExC_state_t;
8e11feef 2413struct _reg_trie_data;
880b20b6 2414
ee0007ab 2415typedef MEM_SIZE STRLEN;
450a55e4 2416
598921a7
NC
2417#ifdef PERL_MAD
2418typedef struct token TOKEN;
2419typedef struct madprop MADPROP;
2420typedef struct nexttoken NEXTTOKE;
2421#endif
79072805
LW
2422typedef struct op OP;
2423typedef struct cop COP;
2424typedef struct unop UNOP;
2425typedef struct binop BINOP;
2426typedef struct listop LISTOP;
2427typedef struct logop LOGOP;
79072805
LW
2428typedef struct pmop PMOP;
2429typedef struct svop SVOP;
7934575e 2430typedef struct padop PADOP;
79072805 2431typedef struct pvop PVOP;
79072805
LW
2432typedef struct loop LOOP;
2433
7aef8e5b 2434#ifdef PERL_CORE
8be227ab
FC
2435typedef struct opslab OPSLAB;
2436typedef struct opslot OPSLOT;
2437#endif
2438
52db365a 2439typedef struct block_hooks BHK;
1830b3d9 2440typedef struct custom_op XOP;
52db365a 2441
cd1541b2
NC
2442typedef struct interpreter PerlInterpreter;
2443
d2b3f365 2444/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2445#if defined(__sgi)
d2b3f365 2446# define STRUCT_SV perl_sv
b8d3c5db
JH
2447#else
2448# define STRUCT_SV sv
2449#endif
2450typedef struct STRUCT_SV SV;
79072805
LW
2451typedef struct av AV;
2452typedef struct hv HV;
2453typedef struct cv CV;
d2f13c59 2454typedef struct p5rx REGEXP;
79072805 2455typedef struct gp GP;
0c30d9ec 2456typedef struct gv GV;
8990e307 2457typedef struct io IO;
c09156bb 2458typedef struct context PERL_CONTEXT;
79072805
LW
2459typedef struct block BLOCK;
2460
2461typedef struct magic MAGIC;
2462typedef struct xpv XPV;
2463typedef struct xpviv XPVIV;
ff68c719 2464typedef struct xpvuv XPVUV;
79072805
LW
2465typedef struct xpvnv XPVNV;
2466typedef struct xpvmg XPVMG;
2467typedef struct xpvlv XPVLV;
2468typedef struct xpvav XPVAV;
2469typedef struct xpvhv XPVHV;
2470typedef struct xpvgv XPVGV;
2471typedef struct xpvcv XPVCV;
2472typedef struct xpvbm XPVBM;
2473typedef struct xpvfm XPVFM;
8990e307 2474typedef struct xpvio XPVIO;
79072805
LW
2475typedef struct mgvtbl MGVTBL;
2476typedef union any ANY;
5f7fde29
GS
2477typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2478typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2479typedef struct clone_params CLONE_PARAMS;
2480
35e035cc 2481/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2482 * so hide the type. */
2483typedef struct padlist PADLIST;
67634234 2484typedef AV PAD;
35e035cc
FC
2485typedef AV PADNAMELIST;
2486typedef SV PADNAME;
67634234 2487
9f351b45
DM
2488/* XXX for 5.18, disable the COW by default
2489 * #if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2490 * # define PERL_NEW_COPY_ON_WRITE
2491 * #endif
2492 */
07d01d6e 2493
db2c6cb3
FC
2494#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2495# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2496# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2497# else
2498# define PERL_ANY_COW
2499# endif
9f351b45
DM
2500#else
2501# define PERL_SAWAMPERSAND
db2c6cb3
FC
2502#endif
2503
378cc40b 2504#include "handy.h"
a0d0e21e 2505
6b8eaf93 2506#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2507# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2508# define USE_64_BIT_RAWIO /* implicit */
2509# endif
4564133c
JH
2510#endif
2511
6b8eaf93
JH
2512/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2513 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2514 * however, because operating systems like to do that themself. */
2515#ifndef FSEEKSIZE
2516# ifdef HAS_FSEEKO
2517# define FSEEKSIZE LSEEKSIZE
2518# else
2519# define FSEEKSIZE LONGSIZE
d460ef45 2520# endif
6b8eaf93
JH
2521#endif
2522
2523#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2524# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2525# define USE_64_BIT_STDIO /* implicit */
2526# endif
2527#endif
4564133c 2528
09458382 2529#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2530# ifdef HAS_OFF64_T
2531# undef Off_t
2532# define Off_t off64_t
2533# undef LSEEKSIZE
2534# define LSEEKSIZE 8
5ff3f7a4 2535# endif
d9b3e12d
JH
2536/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2537 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2538 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2539# if defined(USE_OPEN64)
2540# define open open64
5ff3f7a4 2541# endif
d9b3e12d
JH
2542# if defined(USE_LSEEK64)
2543# define lseek lseek64
6b8eaf93
JH
2544# else
2545# if defined(USE_LLSEEK)
2546# define lseek llseek
2547# endif
d9b3e12d
JH
2548# endif
2549# if defined(USE_STAT64)
2550# define stat stat64
2551# endif
2552# if defined(USE_FSTAT64)
2553# define fstat fstat64
2554# endif
2555# if defined(USE_LSTAT64)
2556# define lstat lstat64
2557# endif
2558# if defined(USE_FLOCK64)
2559# define flock flock64
2560# endif
2561# if defined(USE_LOCKF64)
2562# define lockf lockf64
2563# endif
2564# if defined(USE_FCNTL64)
2565# define fcntl fcntl64
2566# endif
2567# if defined(USE_TRUNCATE64)
2568# define truncate truncate64
2569# endif
2570# if defined(USE_FTRUNCATE64)
2571# define ftruncate ftruncate64
2572# endif
2573#endif
2574
2575#ifdef USE_64_BIT_STDIO
2576# ifdef HAS_FPOS64_T
2577# undef Fpos_t
2578# define Fpos_t fpos64_t
2579# endif
2580/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2581 * will trigger defines like the ones below. Some 64-bit environments,
2582 * however, do not. */
2583# if defined(USE_FOPEN64)
2584# define fopen fopen64
2585# endif
2586# if defined(USE_FSEEK64)
6b8eaf93 2587# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2588# endif
2589# if defined(USE_FTELL64)
6b8eaf93 2590# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2591# endif
2592# if defined(USE_FSETPOS64)
2593# define fsetpos fsetpos64
2594# endif
2595# if defined(USE_FGETPOS64)
2596# define fgetpos fgetpos64
2597# endif
2598# if defined(USE_TMPFILE64)
2599# define tmpfile tmpfile64
2600# endif
2601# if defined(USE_FREOPEN64)
2602# define freopen freopen64
5ff3f7a4
GS
2603# endif
2604#endif
2605
e37778c2 2606#if defined(OS2)
2c2d71f5
JH
2607# include "iperlsys.h"
2608#endif
2609
748a9306 2610#ifdef DOSISH
19848b3f
JH
2611# if defined(OS2)
2612# include "os2ish.h"
2613# else
2614# include "dosish.h"
2615# endif
2616# define ISHISH "dos"
2617#endif
2618
2619#if defined(VMS)
748a9306 2620# include "vmsish.h"
19848b3f
JH
2621# define ISHISH "vms"
2622#endif
2623
2624#if defined(PLAN9)
2625# include "./plan9/plan9ish.h"
2626# define ISHISH "plan9"
2627#endif
2628
19848b3f 2629#if defined(__VOS__)
196918b0
PG
2630# ifdef __GNUC__
2631# include "./vos/vosish.h"
2632# else
2633# include "vos/vosish.h"
2634# endif
19848b3f
JH
2635# define ISHISH "vos"
2636#endif
2637
9969cdde 2638#ifdef __SYMBIAN32__
27da23d5 2639# include "symbian/symbianish.h"
27da23d5
JH
2640# define ISHISH "symbian"
2641#endif
2642
19848b3f 2643
df00ff3b
IW
2644#if defined(__HAIKU__)
2645# include "haiku/haikuish.h"
2646# define ISHISH "haiku"
efca5cc6
JH
2647#endif
2648
19848b3f
JH
2649#ifndef ISHISH
2650# include "unixish.h"
2651# define ISHISH "unix"
13b6e58c
JH
2652#endif
2653
2946a158
JH
2654/* NSIG logic from Configure --> */
2655/* Strange style to avoid deeply-nested #if/#else/#endif */
2656#ifndef NSIG
2657# ifdef _NSIG
2658# define NSIG (_NSIG)
2659# endif
2660#endif
2661
2662#ifndef NSIG
2663# ifdef SIGMAX
2664# define NSIG (SIGMAX+1)
2665# endif
2666#endif
2667
2668#ifndef NSIG
2669# ifdef SIG_MAX
2670# define NSIG (SIG_MAX+1)
2671# endif
2672#endif
2673
2674#ifndef NSIG
2675# ifdef _SIG_MAX
2676# define NSIG (_SIG_MAX+1)
2677# endif
2678#endif
2679
2680#ifndef NSIG
2681# ifdef MAXSIG
2682# define NSIG (MAXSIG+1)
2683# endif
2684#endif
2685
2686#ifndef NSIG
2687# ifdef MAX_SIG
2688# define NSIG (MAX_SIG+1)
2689# endif
2690#endif
2691
2692#ifndef NSIG
2693# ifdef SIGARRAYSIZE
2694# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2695# endif
2696#endif
2697
2698#ifndef NSIG
2699# ifdef _sys_nsig
2700# define NSIG (_sys_nsig) /* Solaris 2.5 */
2701# endif
2702#endif
2703
2704/* Default to some arbitrary number that's big enough to get most
2705 of the common signals.
2706*/
2707#ifndef NSIG
2708# define NSIG 50
2709#endif
2710/* <-- NSIG logic from Configure */
2711
13b6e58c
JH
2712#ifndef NO_ENVIRON_ARRAY
2713# define USE_ENVIRON_ARRAY
2714#endif
32f822de 2715
c77b533b
JH
2716/*
2717 * initialise to avoid floating-point exceptions from overflow, etc
2718 */
2719#ifndef PERL_FPU_INIT
2720# ifdef HAS_FPSETMASK
2721# if HAS_FLOATINGPOINT_H
2722# include <floatingpoint.h>
2723# endif
ad3a8c67
NC
2724/* Some operating systems have this as a macro, which in turn expands to a comma
2725 expression, and the last sub-expression is something that gets calculated,
2726 and then they have the gall to warn that a value computed is not used. Hence
2727 cast to void. */
2728# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2729# else
2f42fcb0 2730# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2731# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2732# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2733# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2734# else
2735# define PERL_FPU_INIT
2f42fcb0 2736
7014c407 2737# endif
c77b533b
JH
2738# endif
2739#endif
b35112e7
CS
2740#ifndef PERL_FPU_PRE_EXEC
2741# define PERL_FPU_PRE_EXEC {
2742# define PERL_FPU_POST_EXEC }
2743#endif
c77b533b 2744
cbec8ebe
DM
2745#ifndef PERL_SYS_INIT3_BODY
2746# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2747#endif
2748
eb533572 2749/*
4ad9e498 2750=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572
DM
2751Provides system-specific tune up of the C runtime environment necessary to
2752run Perl interpreters. This should be called only once, before creating
2753any Perl interpreters.
2754
4ad9e498 2755=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572
DM
2756Provides system-specific tune up of the C runtime environment necessary to
2757run Perl interpreters. This should be called only once, before creating
2758any Perl interpreters.
2759
2760=for apidoc Am|void|PERL_SYS_TERM|
2761Provides system-specific clean up of the C runtime environment after
2762running Perl interpreters. This should be called only once, after
2763freeing any remaining Perl interpreters.
2764
2765=cut
2766 */
2767
cbec8ebe
DM
2768#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2769#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2770#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2771
be708cc0
JH
2772#ifndef PERL_WRITE_MSG_TO_CONSOLE
2773# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2774#endif
2775
0f31cffe
GS
2776#ifndef MAXPATHLEN
2777# ifdef PATH_MAX
b990c8b2
JH
2778# ifdef _POSIX_PATH_MAX
2779# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2780/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2781 * included the null byte or not. Later amendments of POSIX,
2782 * XPG4, the Austin Group, and the Single UNIX Specification
2783 * all explicitly include the null byte in the PATH_MAX.
2784 * Ditto for _POSIX_PATH_MAX. */
2785# define MAXPATHLEN PATH_MAX
b990c8b2 2786# else
09448d78 2787# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2788# endif
2789# else
2790# define MAXPATHLEN (PATH_MAX+1)
2791# endif
0f31cffe 2792# else
d552bce8 2793# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2794# endif
2795#endif
2796
c80263a8
SH
2797/* In case Configure was not used (we are using a "canned config"
2798 * such as Win32, or a cross-compilation setup, for example) try going
2799 * by the gcc major and minor versions. One useful URL is
2800 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2801 * but contrary to this information warn_unused_result seems
2802 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2803 * Also, when building extensions with an installed perl, this allows
2804 * the user to upgrade gcc and get the right attributes, rather than
2805 * relying on the list generated at Configure time. --AD
c80263a8
SH
2806 * Set these up now otherwise we get confused when some of the <*thread.h>
2807 * includes below indirectly pull in <perlio.h> (which needs to know if we
2808 * have HASATTRIBUTE_FORMAT).
2809 */
2810
4d7c7898 2811#ifndef PERL_MICRO
fc2007d4 2812#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2813# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2814# define HASATTRIBUTE_DEPRECATED
2815# endif
c80263a8
SH
2816# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2817# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2818# if defined __MINGW32__
2819# define PRINTF_FORMAT_NULL_OK
2820# endif
c80263a8
SH
2821# endif
2822# if __GNUC__ >= 3 /* 3.0 -> */
2823# define HASATTRIBUTE_MALLOC
2824# endif
2825# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2826# define HASATTRIBUTE_NONNULL
2827# endif
2828# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2829# define HASATTRIBUTE_NORETURN
2830# endif
2831# if __GNUC__ >= 3 /* gcc 3.0 -> */
2832# define HASATTRIBUTE_PURE
2833# endif
42bf5550 2834# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
2835# define HASATTRIBUTE_UNUSED
2836# endif
d324fe49
AD
2837# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2838# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2839# endif
c80263a8
SH
2840# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2841# define HASATTRIBUTE_WARN_UNUSED_RESULT
2842# endif
2843#endif
00f254e2 2844#endif /* #ifndef PERL_MICRO */
c80263a8 2845
3db8f154 2846/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2847 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
2848 * this results in many functions being undeclared which bothers C++
2849 * May make sense to have threads after "*ish.h" anyway
2850 */
2851
3db8f154 2852#if defined(USE_ITHREADS)
2986a63f
JH
2853# ifdef NETWARE
2854# include <nw5thread.h>
2855# else
32f822de
GS
2856# ifdef FAKE_THREADS
2857# include "fakethr.h"
2858# else
2859# ifdef WIN32
2860# include <win32thread.h>
2861# else
dd96f567
IZ
2862# ifdef OS2
2863# include "os2thread.h"
2864# else
7f3d1cf1 2865# ifdef I_MACH_CTHREADS
bdd66968 2866# include <mach/cthreads.h>
8f1f23e8 2867# if (defined(NeXT) || defined(__NeXT__)) && defined(PERL_POLLUTE_MALLOC)
772fe5b3
HM
2868# define MUTEX_INIT_CALLS_MALLOC
2869# endif
7f3d1cf1
BH
2870typedef cthread_t perl_os_thread;
2871typedef mutex_t perl_mutex;
2872typedef condition_t perl_cond;
2873typedef void * perl_key;
2874# else /* Posix threads */
1f5ae88c
JH
2875# ifdef I_PTHREAD
2876# include <pthread.h>
2877# endif
7f3d1cf1
BH
2878typedef pthread_t perl_os_thread;
2879typedef pthread_mutex_t perl_mutex;
2880typedef pthread_cond_t perl_cond;
2881typedef pthread_key_t perl_key;
2882# endif /* I_MACH_CTHREADS */
dd96f567 2883# endif /* OS2 */
32f822de
GS
2884# endif /* WIN32 */
2885# endif /* FAKE_THREADS */
2986a63f 2886#endif /* NETWARE */
3db8f154 2887#endif /* USE_ITHREADS */
c5be433b 2888
66a93824 2889#if defined(WIN32)
1feb2720 2890# include "win32.h"
c5be433b
GS
2891#endif
2892
2986a63f
JH
2893#ifdef NETWARE
2894# include "netware.h"
2895#endif
2896
e5218da5 2897#define STATUS_UNIX PL_statusvalue
68dc0745 2898#ifdef VMS
6b88bc9c 2899# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
2900/*
2901 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2902 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
2903 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2904 * be updated also.
2905 */
2906# include <stsdef.h>
2907# include <ssdef.h>
2908/* Presume this because if VMS changes it, it will require a new
2909 * set of APIs for waiting on children for binary compatibility.
2910 */
2911# define child_offset_bits (8)
2912# ifndef C_FAC_POSIX
2913# define C_FAC_POSIX 0x35A000
2914# endif
2915
2916/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2917 * platform from the existing UNIX or Native status values.
2918 */
2919
37038d91 2920# define STATUS_EXIT \
7a7fd8e0
JM
2921 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2922 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2923
7a7fd8e0 2924
fb38d079
JM
2925/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2926 * exit code and shifts the UNIX value over the correct number of bits to
2927 * be a child status. Usually the number of bits is 8, but that could be
2928 * platform dependent. The NATIVE status code is presumed to have either
2929 * from a child process.
7a7fd8e0
JM
2930 */
2931
fb38d079
JM
2932/* This is complicated. The child processes return a true native VMS
2933 status which must be saved. But there is an assumption in Perl that
2934 the UNIX child status has some relationship to errno values, so
00f254e2 2935 Perl tries to translate it to text in some of the tests.
fb38d079
JM
2936 In order to get the string translation correct, for the error, errno
2937 must be EVMSERR, but that generates a different text message
2938 than what the test programs are expecting. So an errno value must
2939 be derived from the native status value when an error occurs.
2940 That will hide the true native status message. With this version of
2941 perl, the true native child status can always be retrieved so that
2942 is not a problem. But in this case, Pl_statusvalue and errno may
2943 have different values in them.
2944 */
7a7fd8e0 2945
fb38d079 2946# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 2947 STMT_START { \
2fbb330f
JM
2948 I32 evalue = (I32)n; \
2949 if (evalue == EVMSERR) { \
2950 PL_statusvalue_vms = vaxc$errno; \
2951 PL_statusvalue = evalue; \
7a7fd8e0 2952 } else { \
2fbb330f 2953 PL_statusvalue_vms = evalue; \
fb38d079 2954 if (evalue == -1) { \
3280af22 2955 PL_statusvalue = -1; \
7a7fd8e0
JM
2956 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2957 } else \
fb38d079 2958 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 2959 set_vaxc_errno(evalue); \
fb38d079
JM
2960 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
2961 set_errno(EVMSERR); \
2962 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
2963 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 2964 } \
68dc0745 2965 } STMT_END
7a7fd8e0 2966
68dc0745 2967# ifdef VMSISH_STATUS
e5218da5 2968# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 2969# else
e5218da5 2970# define STATUS_CURRENT STATUS_UNIX
68dc0745 2971# endif
7a7fd8e0
JM
2972
2973 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2974 * the NATIVE status to an equivalent value. Can not be used to translate
2975 * exit code values as exit code values are not guaranteed to have any
2976 * relationship at all to errno values.
2977 * This is used when Perl is forcing errno to have a specific value.
2978 */
e5218da5 2979# define STATUS_UNIX_SET(n) \
68dc0745 2980 STMT_START { \
7a7fd8e0 2981 I32 evalue = (I32)n; \
0968cdad 2982 PL_statusvalue = evalue; \
3280af22 2983 if (PL_statusvalue != -1) { \
0968cdad
JM
2984 if (PL_statusvalue != EVMSERR) { \
2985 PL_statusvalue &= 0xFFFF; \
2986 if (MY_POSIX_EXIT) \
2987 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2988 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2989 } \
2990 else { \
2991 PL_statusvalue_vms = vaxc$errno; \
2992 } \
68dc0745 2993 } \
0968cdad
JM
2994 else PL_statusvalue_vms = SS$_ABORT; \
2995 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
2996 } STMT_END
2997
2998 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
2999 * the NATIVE error status based on it.
3000 *
3001 * When in the default mode to comply with the Perl VMS documentation,
3002 * 0 is a success and any other code sets the NATIVE status to a failure
3003 * code of SS$_ABORT.
fb38d079
JM
3004 *
3005 * In the new POSIX EXIT mode, native status will be set so that the
3006 * actual exit code will can be retrieved by the calling program or
3007 * shell.
3008 *
3009 * If the exit code is not clearly a UNIX parent or child exit status,
3010 * it will be passed through as a VMS status.
7a7fd8e0
JM
3011 */
3012
fb38d079 3013# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3014 STMT_START { \
3015 I32 evalue = (I32)n; \
3016 PL_statusvalue = evalue; \
e08e1e1d
JM
3017 if (MY_POSIX_EXIT) { \
3018 if (evalue <= 0xFF00) { \
3019 if (evalue > 0xFF) \
3020 evalue = (evalue >> child_offset_bits) & 0xFF; \
3021 PL_statusvalue_vms = \
3022 (C_FAC_POSIX | (evalue << 3 ) | \
3023 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3024 } else /* forgive them Perl, for they have sinned */ \
3025 PL_statusvalue_vms = evalue; \
3026 } else { \
3027 if (evalue == 0) \
3028 PL_statusvalue_vms = SS$_NORMAL; \
3029 else if (evalue <= 0xFF00) \
3030 PL_statusvalue_vms = SS$_ABORT; \
3031 else { /* forgive them Perl, for they have sinned */ \
3032 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3033 else PL_statusvalue_vms = vaxc$errno; \
3034 /* And obviously used a VMS status value instead of UNIX */ \
3035 PL_statusvalue = EVMSERR; \
3036 } \
3037 set_vaxc_errno(PL_statusvalue_vms); \
3038 } \
68dc0745 3039 } STMT_END
fb38d079 3040
e08e1e1d 3041
6ac6a52b
JM
3042 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3043 * and sets the NATIVE error status based on it. This special case
3044 * is needed to maintain compatibility with past VMS behavior.
3045 *
3046 * In the default mode on VMS, this number is passed through as
3047 * both the NATIVE and UNIX status. Which makes it different
3048 * that the STATUS_UNIX_EXIT_SET.
3049 *
3050 * In the new POSIX EXIT mode, native status will be set so that the
3051 * actual exit code will can be retrieved by the calling program or
3052 * shell.
3053 *
1a3aec58
JM
3054 * A POSIX exit code is from 0 to 255. If the exit code is higher
3055 * than this, it needs to be assumed that it is a VMS exit code and
3056 * passed through.
6ac6a52b
JM
3057 */
3058
3059# define STATUS_EXIT_SET(n) \
3060 STMT_START { \
3061 I32 evalue = (I32)n; \
3062 PL_statusvalue = evalue; \
3063 if (MY_POSIX_EXIT) \
1a3aec58
JM
3064 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3065 PL_statusvalue_vms = \
3066 (C_FAC_POSIX | (evalue << 3 ) | \
3067 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3068 else \
3069 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3070 set_vaxc_errno(PL_statusvalue_vms); \
3071 } STMT_END
3072
fb38d079
JM
3073
3074 /* This macro forces a success status */
7a7fd8e0
JM
3075# define STATUS_ALL_SUCCESS \
3076 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3077
3078 /* This macro forces a failure status */
7a7fd8e0
JM
3079# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3080 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3081 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3082
68dc0745 3083#else
e5218da5 3084# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3085# if defined(WCOREDUMP)
37038d91 3086# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3087 STMT_START { \
3088 PL_statusvalue_posix = (n); \
3089 if (PL_statusvalue_posix == -1) \
3090 PL_statusvalue = -1; \
3091 else { \
3092 PL_statusvalue = \
3093 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3094 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3095 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3096 } \
3097 } STMT_END
3098# elif defined(WIFEXITED)
37038d91 3099# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3100 STMT_START { \
3101 PL_statusvalue_posix = (n); \
3102 if (PL_statusvalue_posix == -1) \
3103 PL_statusvalue = -1; \
3104 else { \
3105 PL_statusvalue = \
3106 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3107 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3108 } \
3109 } STMT_END
3110# else
37038d91 3111# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3112 STMT_START { \
3113 PL_statusvalue_posix = (n); \
3114 if (PL_statusvalue_posix == -1) \
3115 PL_statusvalue = -1; \
3116 else { \
3117 PL_statusvalue = \
3118 PL_statusvalue_posix & 0xFFFF; \
3119 } \
3120 } STMT_END
3121# endif
3122# define STATUS_UNIX_SET(n) \
68dc0745 3123 STMT_START { \
3280af22
NIS
3124 PL_statusvalue = (n); \
3125 if (PL_statusvalue != -1) \
3126 PL_statusvalue &= 0xFFFF; \
68dc0745 3127 } STMT_END
7a7fd8e0 3128# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3129# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3130# define STATUS_CURRENT STATUS_UNIX
37038d91 3131# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3132# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3133# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3134#endif
3135
cc3604b1
GS
3136/* flags in PL_exit_flags for nature of exit() */
3137#define PERL_EXIT_EXPECTED 0x01
31d77e54 3138#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
cc3604b1 3139
b79b76e0 3140#ifndef PERL_CORE
a7cb1f99 3141/* format to use for version numbers in file/directory names */
273cf8d1 3142/* XXX move to Configure? */
b79b76e0
NC
3143/* This was only ever used for the current version, and that can be done at
3144 compile time, as PERL_FS_VERSION, so should we just delete it? */
3145# ifndef PERL_FS_VER_FMT
3146# define PERL_FS_VER_FMT "%d.%d.%d"
3147# endif
3148#endif
3149
3150#ifndef PERL_FS_VERSION
3151# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3152#endif
3153
45bc9206 3154/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3155 * performance issue, so we allow people to disable it. Also, if
3156 * we are using stdio, there are broken implementations of fflush(NULL)
3157 * out there, Solaris being the most prominent.
45bc9206
GS
3158 */
3159#ifndef PERL_FLUSHALL_FOR_CHILD
76549fef 3160# if defined(USE_PERLIO) || defined(FFLUSH_NULL) || defined(USE_SFIO)
66fe083f 3161# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3162# else
3163# ifdef FFLUSH_ALL
3164# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3165# else
c5be433b 3166# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3167# endif
66fe083f 3168# endif
45bc9206
GS
3169#endif
3170
7766f137
GS
3171#ifndef PERL_WAIT_FOR_CHILDREN
3172# define PERL_WAIT_FOR_CHILDREN NOOP
3173#endif
3174
ba869deb 3175/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3176#ifndef PERL_SET_INTERP
3177# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3178#endif
3179
3180#ifndef PERL_GET_INTERP
3181# define PERL_GET_INTERP (PL_curinterp)
3182#endif
3183
54aff467 3184#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3185# ifdef MULTIPLICITY
ba869deb 3186# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3187# endif
ba869deb
GS
3188# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3189#endif
3190
00f254e2 3191/*
8896765a 3192 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3193 All that is required is that the perl source does not
00f254e2
KW
3194 use "%-p" or "%-<number>p" or "%<number>p" formats.
3195 These formats will still work in perl code.
486ec47a 3196 See comments in sv.c for further details.
8896765a 3197
8896765a 3198 Robin Barker 2005-07-14
f46d31f2 3199
00f254e2 3200 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3201*/
8896765a
RB
3202
3203#ifndef SVf_
63ce7bf0 3204# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3205#endif
3206
8896765a 3207#ifndef SVf
104abab4 3208# define SVf "-p"
d2560b70
RB
3209#endif
3210
014ead4b 3211#ifndef SVf32
8896765a 3212# define SVf32 SVf_(32)
014ead4b
RB
3213#endif
3214
3215#ifndef SVf256
8896765a
RB
3216# define SVf256 SVf_(256)
3217#endif
3218
be2597df
MHM
3219#define SVfARG(p) ((void*)(p))
3220
20023040
FC
3221#ifndef HEKf
3222# define HEKf "2p"
3223#endif
3224
b8fa5213
FC
3225/* Not ideal, but we cannot easily include a number in an already-numeric
3226 * format sequence. */
3227#ifndef HEKf256
3228# define HEKf256 "3p"
3229#endif
3230
20023040
FC
3231#define HEKfARG(p) ((void*)(p))
3232
f46d31f2 3233#ifdef PERL_CORE
486ec47a 3234/* not used; but needed for backward compatibility with XS code? - RMB */
f46d31f2
RB
3235# undef VDf
3236#else
3237# ifndef VDf
8896765a
RB
3238# define VDf "vd"
3239# endif
014ead4b 3240#endif
170cd9e9
NC
3241
3242#ifdef PERL_CORE
486ec47a 3243/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3244# undef UVf
3245#else
170cd9e9
NC
3246# ifndef UVf
3247# define UVf UVuf
3248# endif
d2560b70
RB
3249#endif
3250
fcdf39cf
RGS
3251#ifdef HASATTRIBUTE_DEPRECATED
3252# define __attribute__deprecated__ __attribute__((deprecated))
3253#endif
0dbb1585
AL
3254#ifdef HASATTRIBUTE_FORMAT
3255# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3256#endif
3257#ifdef HASATTRIBUTE_MALLOC
77785eea 3258# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3259#endif
0dbb1585 3260#ifdef HASATTRIBUTE_NONNULL
abb2c242 3261# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3262#endif
0dbb1585 3263#ifdef HASATTRIBUTE_NORETURN
abb2c242 3264# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3265#endif
0dbb1585 3266#ifdef HASATTRIBUTE_PURE
abb2c242 3267# define __attribute__pure__ __attribute__((pure))
f22be1b8 3268#endif
0dbb1585
AL
3269#ifdef HASATTRIBUTE_UNUSED
3270# define __attribute__unused__ __attribute__((unused))
3271#endif
3272#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3273# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3274#endif
3275
0dbb1585 3276/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3277#ifndef __attribute__deprecated__
3278# define __attribute__deprecated__
3279#endif
0dbb1585
AL
3280#ifndef __attribute__format__
3281# define __attribute__format__(x,y,z)
3282#endif
f22be1b8 3283#ifndef __attribute__malloc__
abb2c242 3284# define __attribute__malloc__
f22be1b8
JH
3285#endif
3286#ifndef __attribute__nonnull__
abb2c242 3287# define __attribute__nonnull__(a)
f22be1b8
JH
3288#endif
3289#ifndef __attribute__noreturn__
abb2c242 3290# define __attribute__noreturn__
f22be1b8
JH
3291#endif
3292#ifndef __attribute__pure__
abb2c242 3293# define __attribute__pure__
f22be1b8 3294#endif
0dbb1585
AL
3295#ifndef __attribute__unused__
3296# define __attribute__unused__
3297#endif
f22be1b8 3298#ifndef __attribute__warn_unused_result__
abb2c242
JH
3299# define __attribute__warn_unused_result__
3300#endif
3301
0dbb1585
AL
3302/* For functions that are marked as __attribute__noreturn__, it's not
3303 appropriate to call return. In either case, include the lint directive.
3304 */
3305#ifdef HASATTRIBUTE_NORETURN
118e2215 3306# define NORETURN_FUNCTION_END assert(0); /* NOTREACHED */
0dbb1585 3307#else
118e2215 3308# define NORETURN_FUNCTION_END assert(0); /* NOTREACHED */ return 0
abb2c242
JH
3309#endif
3310
cdfeb707
RB
3311/* Some OS warn on NULL format to printf */
3312#ifdef PRINTF_FORMAT_NULL_OK
3313# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3314#else
00f254e2 3315# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3316#endif
3317
635aebb7 3318#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3319# define EXPECT(expr,val) __builtin_expect(expr,val)
3320#else
3321# define EXPECT(expr,val) (expr)
3322#endif
6d5abc62
NC
3323#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3324#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3325#ifdef HAS_BUILTIN_CHOOSE_EXPR
3326/* placeholder */
3327#endif
b37c2d43 3328
3fc1aec6
PP
3329/* Some unistd.h's give a prototype for pause() even though
3330 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3331 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3332*/
3333#ifdef HAS_PAUSE
3334#define Pause pause
3335#else
3336#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3337#endif
3338
3339#ifndef IOCPARM_LEN
3340# ifdef IOCPARM_MASK
61f1c44b 3341 /* on BSDish systems we're safe */
748a9306
LW
3342# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3343# else
61f1c44b 3344# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3345 /* on Linux systems we're safe; except when we're not [perl #38223] */
3346# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3347# else
748a9306 3348 /* otherwise guess at what's safe */
61f1c44b
JVD
3349# define IOCPARM_LEN(x) 256
3350# endif
748a9306 3351# endif
a0d0e21e
LW
3352#endif
3353
1761cee5 3354#if defined(__CYGWIN__)
521e0776
GS
3355/* USEMYBINMODE
3356 * This symbol, if defined, indicates that the program should
16fe6d59 3357 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3358 * that a file is in "binary" mode -- that is, that no translation
3359 * of bytes occurs on read or write operations.
3360 */
36894f0b 3361# define USEMYBINMODE /**/
77a40698 3362# include <io.h> /* for setmode() prototype */
16fe6d59 3363# define my_binmode(fp, iotype, mode) \
77a40698 3364 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3365#endif
3366
88d10794
JH
3367#ifdef __CYGWIN__
3368void init_os_extras(void);
3369#endif
3370
cea2e8a9
GS
3371#ifdef UNION_ANY_DEFINITION
3372UNION_ANY_DEFINITION;
3373#else
3374union any {
3375 void* any_ptr;
3376 I32 any_i32;
3377 IV any_iv;
c6bf6a65 3378 UV any_uv;
cea2e8a9 3379 long any_long;
9febdf04 3380 bool any_bool;
c76ac1ee 3381 void (*any_dptr) (void*);
acfe0abc 3382 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3383};
3384#endif
3385
acfe0abc 3386typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3387
3388#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3389#define FILTER_DATA(idx) \
3390 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3391#define FILTER_ISREADER(idx) \
3392 (PL_parser && PL_parser->rsfp_filters \
3393 && idx >= AvFILLp(PL_parser->rsfp_filters))
3394#define PERL_FILTER_EXISTS(i) \
3395 (PL_parser && PL_parser->rsfp_filters \
3396 && (i) <= av_len(PL_parser->rsfp_filters))
cea2e8a9 3397
c5078cac
JH
3398#if defined(_AIX) && !defined(_AIX43)
3399#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3400/* We cannot include <crypt.h> to get the struct crypt_data
3401 * because of setkey prototype problems when threading */
3402typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3403 /* From OSF, Not needed in AIX
3404 char C[28], D[28];
3405 */
3406 char E[48];
3407 char KS[16][48];
3408 char block[66];
3409 char iobuf[16];
3410} CRYPTD;
3411#endif /* threading */
3412#endif /* AIX */
3413
e37778c2 3414#if !defined(OS2)
2c2d71f5
JH
3415# include "iperlsys.h"
3416#endif
504f80c1 3417
9c12f1e5 3418#ifdef __LIBCATAMOUNT__
00f254e2 3419#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3420#undef HAS_GROUP
3421#define FAKE_BIT_BUCKET
3422#endif
3423
d10dc2ae
JH
3424/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3425 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3426 * defined by Configure, despite their names being similar to the
3427 * other defines like USE_ITHREADS. Configure in fact knows nothing
3428 * about the randomised hashes. Therefore to enable/disable the hash
3429 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3430#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3431# define USE_HASH_SEED
504f80c1
JH
3432#endif
3433
598921a7
NC
3434/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3435 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3436 * it's not really needed.
3437 */
3438#if defined(WIN32)
3439# define YYTOKENTYPE
3440#endif
3441#include "perly.h"
3442
3443#ifdef PERL_MAD
3444struct nexttoken {
3445 YYSTYPE next_val; /* value of next token, if any */
3446 I32 next_type; /* type of next token */
3447 MADPROP *next_mad; /* everything else about that token */
3448};
3449#endif
3450
654eccd5
JD
3451/* macros to define bit-fields in structs. */
3452#ifndef PERL_BITFIELD8
3453# define PERL_BITFIELD8 unsigned
3454#endif
3455#ifndef PERL_BITFIELD16
3456# define PERL_BITFIELD16 unsigned
3457#endif
3458#ifndef PERL_BITFIELD32
3459# define PERL_BITFIELD32 unsigned
3460#endif
3461
79072805 3462#include "sv.h"
288b8c02 3463#include "regexp.h"
378cc40b 3464#include "util.h"
8d063cd8 3465#include "form.h"
79072805 3466#include "gv.h"
dd2155a4 3467#include "pad.h"
79072805 3468#include "cv.h"
abdd5c84 3469#include "opnames.h"
79072805 3470#include "op.h"
b3ca2e83 3471#include "hv.h"
79072805
LW
3472#include "cop.h"
3473#include "av.h"
79072805
LW
3474#include "mg.h"
3475#include "scope.h"
4438c4b7 3476#include "warnings.h"
a0ed51b3 3477#include "utf8.h"
8d063cd8 3478
0d7d409d
DM
3479/* these would be in doio.h if there was such a file */
3480#define my_stat() my_stat_flags(SV_GMAGIC)
3481#define my_lstat() my_lstat_flags(SV_GMAGIC)
3482
20f4945e 3483/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3484#undef _XPV_HEAD
3485#undef _XPVMG_HEAD
3486#undef _XPVCV_COMMON
7fae4e64
GS
3487
3488typedef struct _sublex_info SUBLEXINFO;
3489struct _sublex_info {
651b5b28
NC
3490 U8 super_state; /* lexer state to save */
3491 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3492 OP *sub_op; /* "lex_op" to use */
7cc34111 3493 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3494};
3495
199e78b7
DM
3496#include "parser.h"
3497
455ece5e 3498typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3499
2c2d71f5 3500struct scan_data_t; /* Used in S_* functions in regcomp.c */
653099ff 3501struct regnode_charclass_class; /* Used in S_* functions in regcomp.c */
76e3520e 3502
5f7fde29
GS
3503struct ptr_tbl_ent {
3504 struct ptr_tbl_ent* next;
53c1dcc0 3505 const void* oldval;
5f7fde29 3506 void* newval;
d18c6117
GS
3507};
3508
5f7fde29
GS
3509struct ptr_tbl {
3510 struct ptr_tbl_ent** tbl_ary;
3511 UV tbl_max;
3512 UV tbl_items;
db93c0c4
NC
3513 struct ptr_tbl_arena *tbl_arena;
3514 struct ptr_tbl_ent *tbl_arena_next;
3515 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS
3516};
3517
fe14fcc3
LW
3518#if defined(htonl) && !defined(HAS_HTONL)
3519#define HAS_HTONL
ae986130 3520#endif
fe14fcc3
LW
3521#if defined(htons) && !defined(HAS_HTONS)
3522#define HAS_HTONS
ae986130 3523#endif
fe14fcc3
LW
3524#if defined(ntohl) && !defined(HAS_NTOHL)
3525#define HAS_NTOHL
ae986130 3526#endif
fe14fcc3
LW
3527#if defined(ntohs) && !defined(HAS_NTOHS)
3528#define HAS_NTOHS
ae986130 3529#endif
fe14fcc3 3530#ifndef HAS_HTONL
fe14fcc3
LW
3531#define HAS_HTONS
3532#define HAS_HTONL
3533#define HAS_NTOHS
3534#define HAS_NTOHL
8e2d7c44
NC
3535# if (BYTEORDER & 0xffff) == 0x4321
3536/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3537 re-order their values. However, to behave identically to the alternative
3538 implementations, they should truncate to the correct size. */
3539# define ntohl(x) ((x)&0xFFFFFFFF)
3540# define htonl(x) ntohl(x)
3541# define ntohs(x) ((x)&0xFFFF)
3542# define htons(x) ntohs(x)
e4b03fed
NC
3543# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3544
3545/* Note that we can't straight out declare our own htonl and htons because
3546 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3547 to avoid the overhead of initialising the socket subsystem, but the headers
3548 that *declare* the various functions are still seen. If we declare our own
3549 htonl etc they will clash with the declarations in the Win32 headers. */
3550
3551PERL_STATIC_INLINE U32
3552my_swap32(const U32 x) {
3553 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3554 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3555}
3556
3557PERL_STATIC_INLINE U16
3558my_swap16(const U16 x) {
3559 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3560}
3561
3562# define htonl(x) my_swap32(x)
3563# define ntohl(x) my_swap32(x)
3564# define ntohs(x) my_swap16(x)
3565# define htons(x) my_swap16(x)
8e2d7c44 3566# else
691a44df
NC
3567# error "Unsupported byteorder"
3568/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3569 the error message. Please check the value of the macro BYTEORDER, as defined
3570 in config.h. The values of BYTEORDER we expect are
3571
3572 big endian little endian
3573 32 bit 0x4321 0x1234
3574 64 bit 0x87654321 0x12345678
3575
3576 If you have a system with a different byte order, please see
3577 pod/perlhack.pod for how to submit a patch to add supporting code.
3578*/
3579# endif
a687059c
LW
3580#endif
3581
988174c1
LW
3582/*
3583 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3584 * -DWS
3585 */
5ae72479 3586#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC
3587/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3588 re-order their values. However, to behave identically to the alternative
3589 implementations, they should truncate to the correct size. */
3590# define vtohl(x) ((x)&0xFFFFFFFF)
3591# define vtohs(x) ((x)&0xFFFF)
3592# define htovl(x) vtohl(x)
3593# define htovs(x) vtohs(x)
5ae72479 3594#else
c67712b2 3595# if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW
3596# define vtohl(x) ((((x)&0xFF)<<24) \
3597 +(((x)>>24)&0xFF) \
3598 +(((x)&0x0000FF00)<<8) \
3599 +(((x)&0x00FF0000)>>8) )
3600# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3601# define htovl(x) vtohl(x)
3602# define htovs(x) vtohs(x)
3603# endif
3604 /* otherwise default to functions in util.c */
2a8c3029 3605#ifndef htovs
c623ac67
GS
3606short htovs(short n);
3607short vtohs(short n);
3608long htovl(long n);
3609long vtohl(long n);
988174c1 3610#endif
2a8c3029 3611#endif
988174c1 3612
3bb7c1b4
JH
3613/* *MAX Plus 1. A floating point value.
3614 Hopefully expressed in a way that dodgy floating point can't mess up.
3615 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3616 is added to it
3617 May find that some broken compiler will want the value cast to I32.
3618 [after the shift, as signed >> may not be as secure as unsigned >>]
3619*/
3620#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3621#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3622/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3623 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3624 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3625*/
3626#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3627
3bb7c1b4
JH
3628#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3629#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3630#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3631
3632/* This may look like unnecessary jumping through hoops, but converting
3633 out of range floating point values to integers *is* undefined behaviour,
3634 and it is starting to bite.
3635*/
3636#ifndef CAST_INLINE
65202027 3637#define I_32(what) (cast_i32((NV)(what)))
3bb7c1b4 3638#define U_32(what) (cast_ulong((NV)(what)))
65202027
DS
3639#define I_V(what) (cast_iv((NV)(what)))
3640#define U_V(what) (cast_uv((NV)(what)))
3bb7c1b4
JH
3641#else
3642#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3643 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3644 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3645#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3646 : ((n) < U32_MAX_P1 ? (U32) (n) \
3647 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3648#define I_V(n) ((n) < IV_MAX_P1 ? ((n) < IV_MIN ? IV_MIN : (IV) (n)) \
3649 : ((n) < UV_MAX_P1 ? (IV)(UV) (n) \
3650 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3651#define U_V(n) ((n) < 0.0 ? ((n) < IV_MIN ? (UV) IV_MIN : (UV)(IV) (n)) \
3652 : ((n) < UV_MAX_P1 ? (UV) (n) \
3653 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3654#endif
3655
3656#define U_S(what) ((U16)U_32(what))
3657#define U_I(what) ((unsigned int)U_32(what))
3658#define U_L(what) U_32(what)
ed6116ce 3659
ed140128
AD
3660#ifdef HAS_SIGNBIT
3661# define Perl_signbit signbit
3662#endif
3663
2d4389e4
JH
3664/* These do not care about the fractional part, only about the range. */
3665#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
24db6c0d 3666#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2d4389e4 3667
25da4f38
IZ
3668/* Used with UV/IV arguments: */
3669 /* XXXX: need to speed it up */
3670#define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3671#define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3672
352d5a3a
LW
3673#ifndef MAXSYSFD
3674# define MAXSYSFD 2
3675#endif
ee0007ab 3676
79072805 3677#ifndef __cplusplus
e37d7e38 3678#if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
20ce7b12
GS
3679Uid_t getuid (void);
3680Uid_t geteuid (void);
3681Gid_t getgid (void);
3682Gid_t getegid (void);
79072805 3683#endif
e1caacb4 3684#endif
8d063cd8 3685
0c30d9ec 3686#ifndef Perl_debug_log
bf49b057
GS
3687# define Perl_debug_log PerlIO_stderr()
3688#endif
3689
3690#ifndef Perl_error_log
3691# define Perl_error_log (PL_stderrgv \
6b78add2 3692 && isGV(PL_stderrgv) \
01bb7c6d 3693 && GvIOp(PL_stderrgv) \
42de951c 3694 && IoOFP(GvIOp(PL_stderrgv)) \
bf49b057
GS
3695 ? IoOFP(GvIOp(PL_stderrgv)) \
3696 : PerlIO_stderr())
0c30d9ec 3697#endif
3967c732 3698
aea4f609
DM
3699
3700#define DEBUG_p_FLAG 0x00000001 /* 1 */
3701#define DEBUG_s_FLAG 0x00000002 /* 2 */
3702#define DEBUG_l_FLAG 0x00000004 /* 4 */
3703#define DEBUG_t_FLAG 0x00000008 /* 8 */
3704#define DEBUG_o_FLAG 0x00000010 /* 16 */
3705#define DEBUG_c_FLAG 0x00000020 /* 32 */
3706#define DEBUG_P_FLAG 0x00000040 /* 64 */
3707#define DEBUG_m_FLAG 0x00000080 /* 128 */
3708#define DEBUG_f_FLAG 0x00000100 /* 256 */
3709#define DEBUG_r_FLAG 0x00000200 /* 512 */
3710#define DEBUG_x_FLAG 0x00000400 /* 1024 */
3711#define DEBUG_u_FLAG 0x00000800 /* 2048 */
88d2d28a
JC
3712/* U is reserved for Unofficial, exploratory hacking */
3713#define DEBUG_U_FLAG 0x00001000 /* 4096 */
aea4f609
DM
3714#define DEBUG_H_FLAG 0x00002000 /* 8192 */
3715#define DEBUG_X_FLAG 0x00004000 /* 16384 */
3716#define DEBUG_D_FLAG 0x00008000 /* 32768 */
56967202 3717#define DEBUG_S_FLAG 0x00010000 /* 65536 */
aea4f609 3718#define DEBUG_T_FLAG 0x00020000 /* 131072 */
04932ac8 3719#define DEBUG_R_FLAG 0x00040000 /* 262144 */
1045810a 3720#define DEBUG_J_FLAG 0x00080000 /* 524288 */
d6721266 3721#define DEBUG_v_FLAG 0x00100000 /*1048576 */
46187eeb 3722#define DEBUG_C_FLAG 0x00200000 /*2097152 */
ecae49c0 3723#define DEBUG_A_FLAG 0x00400000 /*4194304 */
a3c98653 3724#define DEBUG_q_FLAG 0x00800000 /*8388608 */
cc8773c0
CS
3725#define DEBUG_M_FLAG 0x01000000 /*16777216*/
3726#define DEBUG_B_FLAG 0x02000000 /*33554432*/
56967202 3727#define DEBUG_MASK 0x03FFEFFF /* mask of all the standard flags */
aea4f609
DM
3728
3729#define DEBUG_DB_RECURSE_FLAG 0x40000000
1045810a
IZ
3730#define DEBUG_TOP_FLAG 0x80000000 /* XXX what's this for ??? Signal
3731 that something was done? */
aea4f609 3732
bd16a5f0
IZ
3733# define DEBUG_p_TEST_ (PL_debug & DEBUG_p_FLAG)
3734# define DEBUG_s_TEST_ (PL_debug & DEBUG_s_FLAG)
3735# define DEBUG_l_TEST_ (PL_debug & DEBUG_l_FLAG)
3736# define DEBUG_t_TEST_ (PL_debug & DEBUG_t_FLAG)
3737# define DEBUG_o_TEST_ (PL_debug & DEBUG_o_FLAG)
3738# define DEBUG_c_TEST_ (PL_debug & DEBUG_c_FLAG)
3739# define DEBUG_P_TEST_ (PL_debug & DEBUG_P_FLAG)
3740# define DEBUG_m_TEST_ (PL_debug & DEBUG_m_FLAG)
3741# define DEBUG_f_TEST_ (PL_debug & DEBUG_f_FLAG)
3742# define DEBUG_r_TEST_ (PL_debug & DEBUG_r_FLAG)
3743# define DEBUG_x_TEST_ (PL_debug & DEBUG_x_FLAG)
3744# define DEBUG_u_TEST_ (PL_debug & DEBUG_u_FLAG)
88d2d28a 3745# define DEBUG_U_TEST_ (PL_debug & DEBUG_U_FLAG)
bd16a5f0
IZ
3746# define DEBUG_H_TEST_ (PL_debug & DEBUG_H_FLAG)
3747# define DEBUG_X_TEST_ (PL_debug & DEBUG_X_FLAG)
3748# define DEBUG_D_TEST_ (PL_debug & DEBUG_D_FLAG)
56967202 3749# define DEBUG_S_TEST_ (PL_debug & DEBUG_S_FLAG)
bd16a5f0
IZ
3750# define DEBUG_T_TEST_ (PL_debug & DEBUG_T_FLAG)
3751# define DEBUG_R_TEST_ (PL_debug & DEBUG_R_FLAG)
1045810a 3752# define DEBUG_J_TEST_ (PL_debug & DEBUG_J_FLAG)
d6721266 3753# define DEBUG_v_TEST_ (PL_debug & DEBUG_v_FLAG)
46187eeb 3754# define DEBUG_C_TEST_ (PL_debug & DEBUG_C_FLAG)
ecae49c0
NC
3755# define DEBUG_A_TEST_ (PL_debug & DEBUG_A_FLAG)
3756# define DEBUG_q_TEST_ (PL_debug & DEBUG_q_FLAG)
d7c0d282 3757# define DEBUG_M_TEST_ (PL_debug & DEBUG_M_FLAG)
cc8773c0 3758# define DEBUG_B_TEST_ (PL_debug & DEBUG_B_FLAG)
dd2155a4 3759# define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
7949c6f5 3760# define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
ad9e76a8 3761# define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
bd16a5f0 3762
3967c732 3763#ifdef DEBUGGING
aea4f609 3764
bd16a5f0
IZ
3765# define DEBUG_p_TEST DEBUG_p_TEST_
3766# define DEBUG_s_TEST DEBUG_s_TEST_
3767# define DEBUG_l_TEST DEBUG_l_TEST_
3768# define DEBUG_t_TEST DEBUG_t_TEST_
3769# define DEBUG_o_TEST DEBUG_o_TEST_
3770# define DEBUG_c_TEST DEBUG_c_TEST_
3771# define DEBUG_P_TEST DEBUG_P_TEST_
3772# define DEBUG_m_TEST DEBUG_m_TEST_
3773# define DEBUG_f_TEST DEBUG_f_TEST_
3774# define DEBUG_r_TEST DEBUG_r_TEST_
3775# define DEBUG_x_TEST DEBUG_x_TEST_
3776# define DEBUG_u_TEST DEBUG_u_TEST_
88d2d28a 3777# define DEBUG_U_TEST DEBUG_U_TEST_
bd16a5f0
IZ
3778# define DEBUG_H_TEST DEBUG_H_TEST_
3779# define DEBUG_X_TEST DEBUG_X_TEST_
3780# define DEBUG_D_TEST DEBUG_D_TEST_
56967202 3781# define DEBUG_S_TEST DEBUG_S_TEST_
bd16a5f0
IZ
3782# define DEBUG_T_TEST DEBUG_T_TEST_
3783# define DEBUG_R_TEST DEBUG_R_TEST_
1045810a 3784# define DEBUG_J_TEST DEBUG_J_TEST_
d6721266 3785# define DEBUG_v_TEST DEBUG_v_TEST_
46187eeb 3786# define DEBUG_C_TEST DEBUG_C_TEST_
ecae49c0 3787# define DEBUG_A_TEST DEBUG_A_TEST_
a3c98653 3788# define DEBUG_q_TEST DEBUG_q_TEST_
d7c0d282 3789# define DEBUG_M_TEST DEBUG_M_TEST_
cc8773c0