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a0d0e21e 1/* perl.h
a687059c 2 *
4bb101f2 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
54ca4ee7 4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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
LW		 21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
95036ac7
JH		 25#if defined(DGUX)
26#include <sys/fcntl.h>
27#endif
28
47a51902
SB		 29#ifdef VOIDUSED
30# undef VOIDUSED
31#endif
0cb96387 32#define VOIDUSED 1
47a51902 33
d460ef45 34#ifdef PERL_MICRO
12ae5dfc
JH		 35# include "uconfig.h"
36#else
37# include "config.h"
38#endif
0cb96387 39
2c2d71f5
JH		 40/* See L<perlguts/"The Perl API"> for detailed notes on
41 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
42
ac6bedea
JH		 43/* Note that from here --> to <-- the same logic is
44 * repeated in makedef.pl, so be certain to update
45 * both places when editing. */
46
894ccb8c
JH		 47#ifdef PERL_IMPLICIT_SYS
48/* PERL_IMPLICIT_SYS implies PerlMemShared != PerlMem
49 so use slab allocator to avoid lots of MUTEX overhead
50 */
51# ifndef PL_OP_SLAB_ALLOC
52# define PL_OP_SLAB_ALLOC
53# endif
ba979b31
NIS		 54#endif
55
6f4183fe 56#ifdef USE_ITHREADS
acfe0abc 57# if !defined(MULTIPLICITY)
6f4183fe
GS		 58# define MULTIPLICITY
59# endif
60#endif
61
27da23d5
JH		 62#ifdef PERL_GLOBAL_STRUCT_PRIVATE
63# ifndef PERL_GLOBAL_STRUCT
64# define PERL_GLOBAL_STRUCT
65# endif
66#endif
97aff369 67
27da23d5
JH		 68#ifdef PERL_GLOBAL_STRUCT
69# ifndef MULTIPLICITY
70# define MULTIPLICITY
71# endif
72#endif
73
97aff369
JH		 74#ifdef MULTIPLICITY
75# ifndef PERL_IMPLICIT_CONTEXT
76# define PERL_IMPLICIT_CONTEXT
77# endif
78#endif
79
026fd48b
GH		 80/* undef WIN32 when building on Cygwin (for libwin32) - gph */
81#ifdef __CYGWIN__
82# undef WIN32
83# undef _WIN32
84#endif
85
27da23d5
JH		 86#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
87# ifndef SYMBIAN
88# define SYMBIAN
89# endif
90#endif
91
a0fd4948 92#ifdef __SYMBIAN32__
27da23d5
JH		 93# include "symbian/symbian_proto.h"
94#endif
95
96/* Any stack-challenged places. The limit varies (and often
97 * is configurable), but using more than a kilobyte of stack
98 * is usually dubious in these systems. */
a0fd4948 99#if defined(EPOC) || defined(__SYMBIAN32__)
27da23d5
JH		 100/* EPOC/Symbian: need to work around the SDK features. *
101 * On WINS: MS VC5 generates calls to _chkstk, *
102 * if a "large" stack frame is allocated. *
103 * gcc on MARM does not generate calls like these. */
104# define USE_HEAP_INSTEAD_OF_STACK
105#endif
106
107#/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 108/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 109#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
10bc17b6
JH		 110# define USE_REENTRANT_API
111#endif
112
ac6bedea
JH		 113/* <--- here ends the logic shared by perl.h and makedef.pl */
114
af28e889 115/*
6239f2da
JH		 116 * PERL_DARWIN for MacOSX (__APPLE__ exists but is not officially sanctioned)
117 * (The -DPERL_DARWIN comes from the hints/darwin.sh.)
af28e889
JH		 118 * __bsdi__ for BSD/OS
119 */
6239f2da 120#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(PERL_DARWIN) || defined(__bsdi__) || defined(BSD41) || defined(BSD42) || defined(BSD43) || defined(BSD44)
af28e889
JH		 121# ifndef BSDish
122# define BSDish
123# endif
124#endif
125
27da23d5
JH		 126#ifdef PERL_GLOBAL_STRUCT
127# ifndef PERL_GET_VARS
128# ifdef PERL_GLOBAL_STRUCT_PRIVATE
129 extern struct perl_vars* Perl_GetVarsPrivate();
130# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
131# ifndef PERLIO_FUNCS_CONST
132# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
133# endif
134# else
135# define PERL_GET_VARS() PL_VarsPtr
136# endif
137# endif
138#endif
139
96a5add6 140#define pVAR register struct perl_vars* const my_vars PERL_UNUSED_DECL
27da23d5
JH		 141
142#ifdef PERL_GLOBAL_STRUCT
143# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
144#else
145# define dVAR dNOOP
146#endif
147
c5be433b 148#ifdef PERL_IMPLICIT_CONTEXT
3db8f154
MB		 149# ifndef MULTIPLICITY
150# define MULTIPLICITY
c5be433b 151# endif
e8dda941 152# define tTHX PerlInterpreter*
e8dda941 153# define pTHX register tTHX my_perl PERL_UNUSED_DECL
3db8f154 154# define aTHX my_perl
27da23d5 155# ifdef PERL_GLOBAL_STRUCT
e8dda941 156# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 157# else
e8dda941 158# define dTHXa(a) pTHX = (tTHX)a
27da23d5
JH		 159# endif
160# ifdef PERL_GLOBAL_STRUCT
161# define dTHX dVAR; pTHX = PERL_GET_THX
162# else
163# define dTHX pTHX = PERL_GET_THX
164# endif
c5be433b 165# define pTHX_ pTHX,
c5be433b 166# define aTHX_ aTHX,
4373e329 167# define pTHX_1 2
894356b3
GS		 168# define pTHX_2 3
169# define pTHX_3 4
170# define pTHX_4 5
4373e329
AL		 171# define pTHX_5 6
172# define pTHX_6 7
a3b680e6
AL		 173# define pTHX_7 8
174# define pTHX_8 9
175# define pTHX_9 10
e8dda941
JD		 176# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
177# define PERL_TRACK_MEMPOOL
178# endif
179#else
180# undef PERL_TRACK_MEMPOOL
c5be433b
GS		 181#endif
182
76e3520e
GS		 183#define STATIC static
184#define CPERLscope(x) x
565764a8 185#define CPERLarg void
76e3520e 186#define CPERLarg_
e3b8966e 187#define _CPERLarg
1d583055
GS		 188#define PERL_OBJECT_THIS
189#define _PERL_OBJECT_THIS
190#define PERL_OBJECT_THIS_
312caa8e 191#define CALL_FPTR(fptr) (*fptr)
76e3520e 192
312caa8e
CS		 193#define CALLRUNOPS CALL_FPTR(PL_runops)
194#define CALLREGCOMP CALL_FPTR(PL_regcompp)
195#define CALLREGEXEC CALL_FPTR(PL_regexecp)
f722798b
IZ		 196#define CALLREG_INTUIT_START CALL_FPTR(PL_regint_start)
197#define CALLREG_INTUIT_STRING CALL_FPTR(PL_regint_string)
198#define CALLREGFREE CALL_FPTR(PL_regfree)
14dd3ad8 199
1215b447
JH		 200/* XXX The PERL_UNUSED_DECL suffix is unfortunately rather inflexible:
201 * it assumes that in all compilers the way to suppress an "unused"
202 * warning is to have a suffix. In some compilers that might be a
203 * a compiler pragma, e.g. #pragma unused(varname). */
204
9969cdde 205#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5
AMS		 206# ifdef __cplusplus
207# define PERL_UNUSED_DECL
208# else
209# define PERL_UNUSED_DECL __attribute__((unused))
210# endif
211#endif
44dbb695 212
5b2bd0a5 213#ifndef PERL_UNUSED_DECL
34659ad4 214# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
b79c357a
RGS		 215# define PERL_UNUSED_DECL __attribute__unused__
216# else
217# define PERL_UNUSED_DECL
218# endif
5b2bd0a5
AMS		 219#endif
220
349b520e
DM		 221/* gcc -Wall:
222 * for silencing unused variables that are actually used most of the time,
a0288114 223 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs
349b520e 224 */
53c1dcc0 225#ifndef PERL_UNUSED_ARG
ad73156c
AL		 226# ifdef lint
227# include <note.h>
53c1dcc0 228# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 229# else
53c1dcc0 230# define PERL_UNUSED_ARG(x) ((void)x)
ad73156c
AL		 231# endif
232#endif
53c1dcc0
AL		 233#ifndef PERL_UNUSED_VAR
234# define PERL_UNUSED_VAR(x) ((void)x)
235#endif
ad73156c 236
96a5add6
AL		 237#ifdef USE_ITHREADS
238# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
239#else
240# define PERL_UNUSED_CONTEXT
241#endif
242
0cb96387 243#define NOOP (void)0
44dbb695 244#define dNOOP extern int Perl___notused PERL_UNUSED_DECL
71be2cbc 245
0cb96387 246#ifndef pTHX
e8dda941
JD		 247/* Don't bother defining tTHX and sTHX; using them outside
248 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
249 */
0cb96387
GS		 250# define pTHX void
251# define pTHX_
0cb96387
GS		 252# define aTHX
253# define aTHX_
0cb96387
GS		 254# define dTHXa(a) dNOOP
255# define dTHX dNOOP
894356b3
GS		 256# define pTHX_1 1
257# define pTHX_2 2
258# define pTHX_3 3
259# define pTHX_4 4
3d42dc86
RGS		 260# define pTHX_5 5
261# define pTHX_6 6
a3b680e6
AL		 262# define pTHX_7 7
263# define pTHX_8 8
264# define pTHX_9 9
0cb96387
GS		 265#endif
266
27da23d5
JH		 267#ifndef dVAR
268# define dVAR dNOOP
269#endif
270
b4f7f263
GS		 271/* these are only defined for compatibility; should not be used internally */
272#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS		 273# define pTHXo pTHX
274# define pTHXo_ pTHX_
0cb96387
GS		 275# define aTHXo aTHX
276# define aTHXo_ aTHX_
c5be433b 277# define dTHXo dTHX
71d280e3 278# define dTHXoa(x) dTHXa(x)
0cb96387
GS		 279#endif
280
281#ifndef pTHXx
282# define pTHXx register PerlInterpreter *my_perl
283# define pTHXx_ pTHXx,
0cb96387
GS		 284# define aTHXx my_perl
285# define aTHXx_ aTHXx,
c5be433b 286# define dTHXx dTHX
22c35a8c 287#endif
71be2cbc 288
1de7c2ac
GS		 289/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
290 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
291 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
292#ifdef PERL_IMPLICIT_SYS
27da23d5
JH		 293# ifdef PERL_GLOBAL_STRUCT_PRIVATE
294# define dTHXs dVAR; dTHX
295# else
296# define dTHXs dTHX
297# endif
1de7c2ac 298#else
27da23d5
JH		 299# ifdef PERL_GLOBAL_STRUCT_PRIVATE
300# define dTHXs dVAR
301# else
302# define dTHXs dNOOP
303# endif
1de7c2ac
GS		 304#endif
305
326b05e3
GS		 306#undef START_EXTERN_C
307#undef END_EXTERN_C
308#undef EXTERN_C
32f822de
GS		 309#ifdef __cplusplus
310# define START_EXTERN_C extern "C" {
311# define END_EXTERN_C }
312# define EXTERN_C extern "C"
313#else
d460ef45
NIS		 314# define START_EXTERN_C
315# define END_EXTERN_C
73c4f7a1 316# define EXTERN_C extern
32f822de
GS		 317#endif
318
27da23d5
JH		 319/* Some platforms require marking function declarations
320 * for them to be exportable. Used in perlio.h, proto.h
321 * is handled either by the makedef.pl or by defining the
322 * PERL_CALLCONV to be something special. See also the
323 * definition of XS() in XSUB.h. */
324#ifndef PERL_EXPORT_C
325# define PERL_EXPORT_C extern
326#endif
327#ifndef PERL_XS_EXPORT_C
328# define PERL_XS_EXPORT_C
329#endif
330
462e5cf6
MB		 331#ifdef OP_IN_REGISTER
332# ifdef __GNUC__
333# define stringify_immed(s) #s
334# define stringify(s) stringify_immed(s)
d1ca3daa 335register struct op *Perl_op asm(stringify(OP_IN_REGISTER));
462e5cf6
MB		 336# endif
337#endif
338
5dc8bdac 339#if defined(__STRICT_ANSI__) && defined(PERL_GCC_PEDANTIC)
22469a62
RGS		 340# if !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
341# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
342# endif
5dc8bdac
JH		 343#endif
344
728e2803 345/*
346 * STMT_START { statements; } STMT_END;
347 * can be used as a single statement, as in
348 * if (x) STMT_START { ... } STMT_END; else ...
349 *
350 * Trying to select a version that gives no warnings...
351 */
352#if !(defined(STMT_START) && defined(STMT_END))
5dc8bdac 353# if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
a0288114 354# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803 355# define STMT_END )
356# else
357 /* Now which other defined()s do we need here ??? */
93189314 358# if (VOIDFLAGS) && (defined(sun) || defined(__sun__)) && !defined(__GNUC__)
728e2803 359# define STMT_START if (1)
360# define STMT_END else (void)0
361# else
362# define STMT_START do
363# define STMT_END while (0)
364# endif
365# endif
366#endif
367
0cb96387 368#define WITH_THX(s) STMT_START { dTHX; s; } STMT_END
411caa50 369#define WITH_THR(s) WITH_THX(s)
ea0efc06 370
d6f9c181
JH		 371#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
372# define BYTEORDER 0x1234
79072805
LW		 373#endif
374
375/* Overall memory policy? */
376#ifndef CONSERVATIVE
377# define LIBERAL 1
378#endif
379
8ada0baa
JH		 380#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
381#define ASCIIish
382#else
383#undef ASCIIish
384#endif
385
79072805
LW		 386/*
387 * The following contortions are brought to you on behalf of all the
388 * standards, semi-standards, de facto standards, not-so-de-facto standards
389 * of the world, as well as all the other botches anyone ever thought of.
390 * The basic theory is that if we work hard enough here, the rest of the
391 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
392 */
ac58e20f 393
ee0007ab 394/* define this once if either system, instead of cluttering up the src */
2986a63f 395#if defined(MSDOS) || defined(atarist) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW		 396#define DOSISH 1
397#endif
398
fb38d079 399#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(EPOC) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW		 400# define STANDARD_C 1
401#endif
402
9969cdde 403#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__DGUX) || defined(EPOC) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745 404# define DONT_DECLARE_STD 1
405#endif
406
352d5a3a 407#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 408# ifdef __cplusplus
cb69f87a 409# define VOL /* to temporarily suppress warnings */
79072805
LW		 410# else
411# define VOL volatile
412# endif
663a0e37 413#else
79072805 414# define VOL
663a0e37
LW		 415#endif
416
3280af22
NIS		 417#define TAINT (PL_tainted = TRUE)
418#define TAINT_NOT (PL_tainted = FALSE)
419#define TAINT_IF(c) if (c) { PL_tainted = TRUE; }
420#define TAINT_ENV() if (PL_tainting) { taint_env(); }
bd61b366 421#define TAINT_PROPER(s) if (PL_tainting) { taint_proper(NULL, s); }
a687059c 422
d460ef45 423/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de 424 defines move there? If so, I could simplify this a lot. --AD 9/96.
425*/
426/* Process group stuff changed from traditional BSD to POSIX.
427 perlfunc.pod documents the traditional BSD-style syntax, so we'll
428 try to preserve that, if possible.
429*/
430#ifdef HAS_SETPGID
431# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 432#else
a6e633de 433# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
434# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
435# else
436# ifdef HAS_SETPGRP2 /* DG/UX */
437# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
438# endif
439# endif
440#endif
441#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
442# define HAS_SETPGRP /* Well, effectively it does . . . */
443#endif
444
445/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
446 our life easier :-) so we'll try it.
447*/
448#ifdef HAS_GETPGID
449# define BSD_GETPGRP(pid) getpgid((pid))
450#else
451# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
452# define BSD_GETPGRP(pid) getpgrp((pid))
453# else
454# ifdef HAS_GETPGRP2 /* DG/UX */
455# define BSD_GETPGRP(pid) getpgrp2((pid))
456# endif
457# endif
458#endif
459#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
460# define HAS_GETPGRP /* Well, effectively it does . . . */
461#endif
462
d460ef45 463/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de 464 have different behaviors, but perl.h used to define USE_BSDPGRP
465 (prior to 5.003_05) so some extension might depend on it.
466*/
467#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
468# ifndef USE_BSDPGRP
469# define USE_BSDPGRP
470# endif
663a0e37
LW		 471#endif
472
8ac5a1fe
MH		 473/* HP-UX 10.X CMA (Common Multithreaded Architecure) insists that
474 pthread.h must be included before all other header files.
475*/
3db8f154 476#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH		 477# include <pthread.h>
478#endif
479
760ac839
LW		 480#ifndef _TYPES_ /* If types.h defines this it's easy. */
481# ifndef major /* Does everyone's types.h define this? */
482# include <sys/types.h>
c07a80fd 483# endif
663a0e37
LW		 484#endif
485
760ac839
LW		 486#ifdef __cplusplus
487# ifndef I_STDARG
488# define I_STDARG 1
489# endif
490#endif
491
492#ifdef I_STDARG
493# include <stdarg.h>
494#else
495# ifdef I_VARARGS
496# include <varargs.h>
497# endif
498#endif
499
4633a7c4 500#ifdef USE_NEXT_CTYPE
0c30d9ec 501
092bebab
JH		 502#if NX_CURRENT_COMPILER_RELEASE >= 500
503# include <bsd/ctypes.h>
504#else
505# if NX_CURRENT_COMPILER_RELEASE >= 400
506# include <objc/NXCType.h>
507# else /* NX_CURRENT_COMPILER_RELEASE < 400 */
508# include <appkit/NXCType.h>
509# endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
510#endif /* NX_CURRENT_COMPILER_RELEASE >= 500 */
0c30d9ec 511
512#else /* !USE_NEXT_CTYPE */
fe14fcc3 513#include <ctype.h>
0c30d9ec 514#endif /* USE_NEXT_CTYPE */
a0d0e21e
LW		 515
516#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
517#undef METHOD
a0d0e21e
LW		 518#endif
519
12ae5dfc
JH		 520#ifdef PERL_MICRO
521# define NO_LOCALE
522#endif
523
4633a7c4 524#ifdef I_LOCALE
36477c24 525# include <locale.h>
4633a7c4
LW		 526#endif
527
36477c24 528#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
529# define USE_LOCALE
530# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
531 && defined(HAS_STRXFRM)
532# define USE_LOCALE_COLLATE
533# endif
534# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
535# define USE_LOCALE_CTYPE
536# endif
537# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
538# define USE_LOCALE_NUMERIC
539# endif
540#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 541
fe14fcc3 542#include <setjmp.h>
79072805 543
a0d0e21e 544#ifdef I_SYS_PARAM
79072805
LW		 545# ifdef PARAM_NEEDS_TYPES
546# include <sys/types.h>
547# endif
548# include <sys/param.h>
352d5a3a 549#endif
79072805 550
79072805 551/* Use all the "standard" definitions? */
a0d0e21e 552#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 553# include <stdlib.h>
ff68c719 554#endif
03a14243 555
3f270f98
JH		 556/* If this causes problems, set i_unistd=undef in the hint file. */
557#ifdef I_UNISTD
558# include <unistd.h>
559#endif
560
9969cdde 561#ifdef __SYMBIAN32__
27da23d5
JH		 562# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
563#endif
564
7114a2d2 565#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) && !defined(PERL_MICRO)
2ef53570
JH		 566int syscall(int, ...);
567#endif
568
7114a2d2 569#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) && !defined(PERL_MICRO)
fa0a29af 570int usleep(unsigned int);
2ef53570
JH		 571#endif
572
9a34ef1d
GS		 573#ifdef PERL_MICRO /* Last chance to export Perl_my_swap */
574# define MYSWAP
575#endif
576
1109a392
MHM		 577#ifdef PERL_CORE
578
579/* macros for correct constant construction */
580# if INTSIZE >= 2
581# define U16_CONST(x) ((U16)x##U)
582# else
583# define U16_CONST(x) ((U16)x##UL)
584# endif
585
586# if INTSIZE >= 4
587# define U32_CONST(x) ((U32)x##U)
588# else
589# define U32_CONST(x) ((U32)x##UL)
590# endif
591
592# ifdef HAS_QUAD
593# if INTSIZE >= 8
594# define U64_CONST(x) ((U64)x##U)
595# elif LONGSIZE >= 8
596# define U64_CONST(x) ((U64)x##UL)
597# elif QUADKIND == QUAD_IS_LONG_LONG
598# define U64_CONST(x) ((U64)x##ULL)
599# else /* best guess we can make */
600# define U64_CONST(x) ((U64)x##UL)
601# endif
602# endif
603
604/* byte-swapping functions for big-/little-endian conversion */
605# define _swab_16_(x) ((U16)( \
606 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
607 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
608
609# define _swab_32_(x) ((U32)( \
610 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
611 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
612 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
613 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
614
615# ifdef HAS_QUAD
616# define _swab_64_(x) ((U64)( \
617 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
618 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
619 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
620 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
621 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
622 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
623 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
624 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
625# endif
626
627/*----------------------------------------------------------------------------*/
628# if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */
629/*----------------------------------------------------------------------------*/
630# define my_htole16(x) (x)
631# define my_letoh16(x) (x)
632# define my_htole32(x) (x)
633# define my_letoh32(x) (x)
634# define my_htobe16(x) _swab_16_(x)
635# define my_betoh16(x) _swab_16_(x)
636# define my_htobe32(x) _swab_32_(x)
637# define my_betoh32(x) _swab_32_(x)
638# ifdef HAS_QUAD
639# define my_htole64(x) (x)
640# define my_letoh64(x) (x)
641# define my_htobe64(x) _swab_64_(x)
642# define my_betoh64(x) _swab_64_(x)
643# endif
644# define my_htoles(x) (x)
645# define my_letohs(x) (x)
646# define my_htolei(x) (x)
647# define my_letohi(x) (x)
648# define my_htolel(x) (x)
649# define my_letohl(x) (x)
650# if SHORTSIZE == 1
651# define my_htobes(x) (x)
652# define my_betohs(x) (x)
653# elif SHORTSIZE == 2
654# define my_htobes(x) _swab_16_(x)
655# define my_betohs(x) _swab_16_(x)
656# elif SHORTSIZE == 4
657# define my_htobes(x) _swab_32_(x)
658# define my_betohs(x) _swab_32_(x)
659# elif SHORTSIZE == 8
660# define my_htobes(x) _swab_64_(x)
661# define my_betohs(x) _swab_64_(x)
662# else
663# define PERL_NEED_MY_HTOBES
664# define PERL_NEED_MY_BETOHS
665# endif
666# if INTSIZE == 1
667# define my_htobei(x) (x)
668# define my_betohi(x) (x)
669# elif INTSIZE == 2
670# define my_htobei(x) _swab_16_(x)
671# define my_betohi(x) _swab_16_(x)
672# elif INTSIZE == 4
673# define my_htobei(x) _swab_32_(x)
674# define my_betohi(x) _swab_32_(x)
675# elif INTSIZE == 8
676# define my_htobei(x) _swab_64_(x)
677# define my_betohi(x) _swab_64_(x)
678# else
679# define PERL_NEED_MY_HTOBEI
680# define PERL_NEED_MY_BETOHI
681# endif
682# if LONGSIZE == 1
683# define my_htobel(x) (x)
684# define my_betohl(x) (x)
685# elif LONGSIZE == 2
686# define my_htobel(x) _swab_16_(x)
687# define my_betohl(x) _swab_16_(x)
688# elif LONGSIZE == 4
689# define my_htobel(x) _swab_32_(x)
690# define my_betohl(x) _swab_32_(x)
691# elif LONGSIZE == 8
692# define my_htobel(x) _swab_64_(x)
693# define my_betohl(x) _swab_64_(x)
694# else
695# define PERL_NEED_MY_HTOBEL
696# define PERL_NEED_MY_BETOHL
697# endif
698# define my_htolen(p,n) NOOP
699# define my_letohn(p,n) NOOP
700# define my_htoben(p,n) my_swabn(p,n)
701# define my_betohn(p,n) my_swabn(p,n)
702/*----------------------------------------------------------------------------*/
703# elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */
704/*----------------------------------------------------------------------------*/
705# define my_htobe16(x) (x)
706# define my_betoh16(x) (x)
707# define my_htobe32(x) (x)
708# define my_betoh32(x) (x)
709# define my_htole16(x) _swab_16_(x)
710# define my_letoh16(x) _swab_16_(x)
711# define my_htole32(x) _swab_32_(x)
712# define my_letoh32(x) _swab_32_(x)
713# ifdef HAS_QUAD
714# define my_htobe64(x) (x)
715# define my_betoh64(x) (x)
716# define my_htole64(x) _swab_64_(x)
717# define my_letoh64(x) _swab_64_(x)
718# endif
719# define my_htobes(x) (x)
720# define my_betohs(x) (x)
721# define my_htobei(x) (x)
722# define my_betohi(x) (x)
723# define my_htobel(x) (x)
724# define my_betohl(x) (x)
725# if SHORTSIZE == 1
726# define my_htoles(x) (x)
727# define my_letohs(x) (x)
728# elif SHORTSIZE == 2
729# define my_htoles(x) _swab_16_(x)
730# define my_letohs(x) _swab_16_(x)
731# elif SHORTSIZE == 4
732# define my_htoles(x) _swab_32_(x)
733# define my_letohs(x) _swab_32_(x)
734# elif SHORTSIZE == 8
735# define my_htoles(x) _swab_64_(x)
736# define my_letohs(x) _swab_64_(x)
737# else
738# define PERL_NEED_MY_HTOLES
739# define PERL_NEED_MY_LETOHS
740# endif
741# if INTSIZE == 1
742# define my_htolei(x) (x)
743# define my_letohi(x) (x)
744# elif INTSIZE == 2
745# define my_htolei(x) _swab_16_(x)
746# define my_letohi(x) _swab_16_(x)
747# elif INTSIZE == 4
748# define my_htolei(x) _swab_32_(x)
749# define my_letohi(x) _swab_32_(x)
750# elif INTSIZE == 8
751# define my_htolei(x) _swab_64_(x)
752# define my_letohi(x) _swab_64_(x)
753# else
754# define PERL_NEED_MY_HTOLEI
755# define PERL_NEED_MY_LETOHI
756# endif
757# if LONGSIZE == 1
758# define my_htolel(x) (x)
759# define my_letohl(x) (x)
760# elif LONGSIZE == 2
761# define my_htolel(x) _swab_16_(x)
762# define my_letohl(x) _swab_16_(x)
763# elif LONGSIZE == 4
764# define my_htolel(x) _swab_32_(x)
765# define my_letohl(x) _swab_32_(x)
766# elif LONGSIZE == 8
767# define my_htolel(x) _swab_64_(x)
768# define my_letohl(x) _swab_64_(x)
769# else
770# define PERL_NEED_MY_HTOLEL
771# define PERL_NEED_MY_LETOHL
772# endif
773# define my_htolen(p,n) my_swabn(p,n)
774# define my_letohn(p,n) my_swabn(p,n)
775# define my_htoben(p,n) NOOP
776# define my_betohn(p,n) NOOP
777/*----------------------------------------------------------------------------*/
778# else /* all other byte-orders */
779/*----------------------------------------------------------------------------*/
780# define PERL_NEED_MY_HTOLE16
781# define PERL_NEED_MY_LETOH16
782# define PERL_NEED_MY_HTOBE16
783# define PERL_NEED_MY_BETOH16
784# define PERL_NEED_MY_HTOLE32
785# define PERL_NEED_MY_LETOH32
786# define PERL_NEED_MY_HTOBE32
787# define PERL_NEED_MY_BETOH32
788# ifdef HAS_QUAD
789# define PERL_NEED_MY_HTOLE64
790# define PERL_NEED_MY_LETOH64
791# define PERL_NEED_MY_HTOBE64
792# define PERL_NEED_MY_BETOH64
793# endif
794# define PERL_NEED_MY_HTOLES
795# define PERL_NEED_MY_LETOHS
796# define PERL_NEED_MY_HTOBES
797# define PERL_NEED_MY_BETOHS
798# define PERL_NEED_MY_HTOLEI
799# define PERL_NEED_MY_LETOHI
800# define PERL_NEED_MY_HTOBEI
801# define PERL_NEED_MY_BETOHI
802# define PERL_NEED_MY_HTOLEL
803# define PERL_NEED_MY_LETOHL
804# define PERL_NEED_MY_HTOBEL
805# define PERL_NEED_MY_BETOHL
806/*----------------------------------------------------------------------------*/
807# endif /* end of byte-order macros */
808/*----------------------------------------------------------------------------*/
809
9c17f24a
NC		 810/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
811 at least on FreeBSD. YMMV, so experiment. */
812#ifndef PERL_ARENA_SIZE
813#define PERL_ARENA_SIZE 4080
814#endif
815
1109a392
MHM		 816#endif /* PERL_CORE */
817
bdf3085f
NC		 818/* We no longer default to creating a new SV for GvSV.
819 Do this before embed. */
820#ifndef PERL_CREATE_GVSV
7459f06b
NC		 821# ifndef PERL_DONT_CREATE_GVSV
822# define PERL_DONT_CREATE_GVSV
823# endif
bdf3085f
NC		 824#endif
825
ca0c25f6
NC		 826#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
827#define PERL_USES_PL_PIDSTATUS
828#endif
829
a62746fa
RGS		 830#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(__SYMBIAN32__) && !defined(MACOS_TRADITIONAL)
831#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
832#endif
833
66a93824
NIS		 834/* Cannot include embed.h here on Win32 as win32.h has not
835 yet been included and defines some config variables e.g. HAVE_INTERP_INTERN
836 */
96e176bf 837#if !defined(PERL_FOR_X2P) && !(defined(WIN32)||defined(VMS))
cea2e8a9
GS		 838# include "embed.h"
839#endif
840
c31fac66
GS		 841#define MEM_SIZE Size_t
842
1936d2a7
NC		 843/* Round all values passed to malloc up, by default to a multiple of
844 sizeof(size_t)
845*/
846#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
847#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
848#endif
849
51371543
GS		 850#if defined(STANDARD_C) && defined(I_STDDEF)
851# include <stddef.h>
852# define STRUCT_OFFSET(s,m) offsetof(s,m)
853#else
854# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
855#endif
856
9969cdde 857#ifndef __SYMBIAN32__
27da23d5
JH		 858# if defined(I_STRING) || defined(__cplusplus)
859# include <string.h>
860# else
861# include <strings.h>
862# endif
51371543
GS		 863#endif
864
55497cff 865/* This comes after <stdlib.h> so we don't try to change the standard
866 * library prototypes; we'll use our own in proto.h instead. */
03a14243 867
4633a7c4 868#ifdef MYMALLOC
86058a2d 869# ifdef PERL_POLLUTE_MALLOC
ee13e175 870# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS		 871# define Perl_malloc malloc
872# define Perl_calloc calloc
873# define Perl_realloc realloc
874# define Perl_mfree free
ee13e175 875# endif
86058a2d
GS		 876# else
877# define EMBEDMYMALLOC /* for compatibility */
878# endif
827e134a 879
651b9576
GS		 880# define safemalloc Perl_malloc
881# define safecalloc Perl_calloc
882# define saferealloc Perl_realloc
883# define safefree Perl_mfree
22f7c9c9
JH		 884# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
885 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
886 code; \
887 } STMT_END
888# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
889 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
890# define panic_write2(s) write(2, s, strlen(s))
891# define CHECK_MALLOC_TAINT(newval) \
892 CHECK_MALLOC_TOO_LATE_FOR_( \
893 if (newval) { \
894 panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n");\
895 exit(1); })
22f7c9c9 896# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 897 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH		 898 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
899 }} STMT_END;
f2517201
GS		 900#else /* MYMALLOC */
901# define safemalloc safesysmalloc
902# define safecalloc safesyscalloc
903# define saferealloc safesysrealloc
904# define safefree safesysfree
22f7c9c9
JH		 905# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
906# define CHECK_MALLOC_TAINT(newval) ((void)0)
907# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 908#endif /* MYMALLOC */
4633a7c4 909
27da23d5 910#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		 911#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
912#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
913#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
914
a0d0e21e
LW		 915#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
916#define strchr index
917#define strrchr rindex
918#endif
919
16d20bd9
AD		 920#ifdef I_MEMORY
921# include <memory.h>
922#endif
923
fe14fcc3 924#ifdef HAS_MEMCPY
85e6fe83 925# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 926# ifndef memcpy
20ce7b12 927 extern char * memcpy (char*, char*, int);
ee0007ab
LW		 928# endif
929# endif
930#else
931# ifndef memcpy
932# ifdef HAS_BCOPY
933# define memcpy(d,s,l) bcopy(s,d,l)
934# else
935# define memcpy(d,s,l) my_bcopy(s,d,l)
936# endif
937# endif
938#endif /* HAS_MEMCPY */
fe14fcc3 939
ee0007ab 940#ifdef HAS_MEMSET
85e6fe83 941# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 942# ifndef memset
20ce7b12 943 extern char *memset (char*, int, int);
ee0007ab
LW		 944# endif
945# endif
ee0007ab 946#else
12ae5dfc 947# undef memset
fc36a67e 948# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 949#endif /* HAS_MEMSET */
950
85e6fe83 951#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 952# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 953# define memmove(d,s,l) bcopy(s,d,l)
954# else
2304df62 955# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 956# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 957# else
79072805 958# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 959# endif
352d5a3a 960# endif
d9d8d8de 961#endif
ee0007ab 962
36477c24 963#if defined(mips) && defined(ultrix) && !defined(__STDC__)
964# undef HAS_MEMCMP
965#endif
966
967#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 968# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 969# ifndef memcmp
20ce7b12 970 extern int memcmp (char*, char*, int);
ee0007ab
LW		 971# endif
972# endif
36477c24 973# ifdef BUGGY_MSC
7e4e8c89 974# pragma function(memcmp)
36477c24 975# endif
ee0007ab
LW		 976#else
977# ifndef memcmp
ecfc5424 978# define memcmp my_memcmp
352d5a3a 979# endif
36477c24 980#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 981
fc36a67e 982#ifndef memzero
c635e13b 983# ifdef HAS_MEMSET
984# define memzero(d,l) memset(d,0,l)
79072805 985# else
c635e13b 986# ifdef HAS_BZERO
987# define memzero(d,l) bzero(d,l)
79072805 988# else
fc36a67e 989# define memzero(d,l) my_bzero(d,l)
79072805
LW		 990# endif
991# endif
d9d8d8de 992#endif
378cc40b 993
2f42fcb0 994#ifndef PERL_MICRO
0f27ced1
JH		 995#ifndef memchr
996# ifndef HAS_MEMCHR
997# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
998# endif
999#endif
2f42fcb0 1000#endif
0f27ced1 1001
36477c24 1002#ifndef HAS_BCMP
1003# ifndef bcmp
1004# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1005# endif
36477c24 1006#endif /* !HAS_BCMP */
378cc40b 1007
ae986130 1008#ifdef I_NETINET_IN
79072805 1009# include <netinet/in.h>
ae986130
LW		 1010#endif
1011
28e8609d
JH		 1012#ifdef I_ARPA_INET
1013# include <arpa/inet.h>
1014#endif
1015
84902520
TB		 1016#if defined(SF_APPEND) && defined(USE_SFIO) && defined(I_SFIO)
1017/* <sfio.h> defines SF_APPEND and <sys/stat.h> might define SF_APPEND
1018 * (the neo-BSD seem to do this). */
1019# undef SF_APPEND
1020#endif
1021
1aef975c 1022#ifdef I_SYS_STAT
84902520 1023# include <sys/stat.h>
1aef975c 1024#endif
79072805 1025
a0d0e21e
LW		 1026/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
1027 like UTekV) are broken, sometimes giving false positives. Undefine
1028 them here and let the code below set them to proper values.
1029
1030 The ghs macro stands for GreenHills Software C-1.8.5 which
1031 is the C compiler for sysV88 and the various derivatives.
1032 This header file bug is corrected in gcc-2.5.8 and later versions.
1033 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1034
1035#if defined(uts) || (defined(m88k) && defined(ghs))
79072805
LW		 1036# undef S_ISDIR
1037# undef S_ISCHR
1038# undef S_ISBLK
1039# undef S_ISREG
1040# undef S_ISFIFO
1041# undef S_ISLNK
ee0007ab 1042#endif
135863df 1043
663a0e37
LW		 1044#ifdef I_TIME
1045# include <time.h>
ffed7fef 1046#endif
663a0e37 1047
fe14fcc3 1048#ifdef I_SYS_TIME
85e6fe83 1049# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1050# define KERNEL
1051# endif
1052# include <sys/time.h>
85e6fe83 1053# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1054# undef KERNEL
1055# endif
a687059c 1056#endif
135863df 1057
55497cff 1058#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1059# include <sys/times.h>
d9d8d8de 1060#endif
8d063cd8 1061
fe14fcc3 1062#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1063# undef HAS_STRERROR
663a0e37
LW		 1064#endif
1065
1066#include <errno.h>
1e743fda 1067
acfe0abc 1068#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS		 1069# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1070#endif
1071
8cfab5ff
JH		 1072/* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
1073 * This is important for using IPv6.
1074 * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1075 * a bad idea since it breaks send() and recv(). */
1076#if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1077# define _SOCKADDR_LEN
1078#endif
1079
8d3f517a 1080#if defined(HAS_SOCKET) && !defined(VMS) && !defined(WIN32) /* VMS/WIN32 handle sockets via vmsish.h/win32.h */
1e743fda
JH		 1081# include <sys/socket.h>
1082# if defined(USE_SOCKS) && defined(I_SOCKS)
1083# if !defined(INCLUDE_PROTOTYPES)
1084# define INCLUDE_PROTOTYPES /* for <socks.h> */
1085# define PERL_SOCKS_NEED_PROTOTYPES
1086# endif
1087# include <socks.h>
1088# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1089# undef INCLUDE_PROTOTYPES
1090# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1091# endif
d460ef45 1092# endif
1e743fda 1093# ifdef I_NETDB
2986a63f
JH		 1094# ifdef NETWARE
1095# include<stdio.h>
1096# endif
1e743fda
JH		 1097# include <netdb.h>
1098# endif
1099# ifndef ENOTSOCK
1100# ifdef I_NET_ERRNO
1101# include <net/errno.h>
1102# endif
1103# endif
1104#endif
1105
fa0a29af 1106/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM		 1107 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1108 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1109#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM		 1110# if defined(__THROW) && defined(__GLIBC__)
1111int sockatmark(int) __THROW;
1112# else
2ef53570 1113int sockatmark(int);
29820b6d 1114# endif
2ef53570
JH		 1115#endif
1116
1e743fda
JH		 1117#ifdef SETERRNO
1118# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1119#endif
f86702cc 1120
1121#ifdef VMS
1122# define SETERRNO(errcode,vmserrcode) \
1123 STMT_START { \
1124 set_errno(errcode); \
1125 set_vaxc_errno(vmserrcode); \
1126 } STMT_END
93189314
JH		 1127# define LIB_INVARG LIB$_INVARG
1128# define RMS_DIR RMS$_DIR
1129# define RMS_FAC RMS$_FAC
1130# define RMS_FEX RMS$_FEX
1131# define RMS_FNF RMS$_FNF
1132# define RMS_IFI RMS$_IFI
1133# define RMS_ISI RMS$_ISI
1134# define RMS_PRV RMS$_PRV
1135# define SS_ACCVIO SS$_ACCVIO
1136# define SS_DEVOFFLINE SS$_DEVOFFLINE
1137# define SS_IVCHAN SS$_IVCHAN
1138# define SS_NORMAL SS$_NORMAL
748a9306 1139#else
aba27d88 1140# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
93189314
JH		 1141# define LIB_INVARG 0
1142# define RMS_DIR 0
1143# define RMS_FAC 0
1144# define RMS_FEX 0
1145# define RMS_FNF 0
1146# define RMS_IFI 0
1147# define RMS_ISI 0
1148# define RMS_PRV 0
1149# define SS_ACCVIO 0
1150# define SS_DEVOFFLINE 0
1151# define SS_IVCHAN 0
1152# define SS_NORMAL 0
748a9306 1153#endif
ed6116ce 1154
3db8f154 1155#define ERRSV GvSV(PL_errgv)
e203899d
NC		 1156/* FIXME? Change the assignments to PL_defgv to instantiate GvSV? */
1157#define DEFSV GvSVn(PL_defgv)
3db8f154 1158#define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
38a03e6e 1159
98eae8f5
GS		 1160#define ERRHV GvHV(PL_errgv) /* XXX unused, here for compatibility */
1161
55497cff 1162#ifndef errno
5ff3f7a4
GS		 1163 extern int errno; /* ANSI allows errno to be an lvalue expr.
1164 * For example in multithreaded environments
1165 * something like this might happen:
1166 * extern int *_errno(void);
1167 * #define errno (*_errno()) */
d9d8d8de 1168#endif
663a0e37 1169
2304df62 1170#ifdef HAS_STRERROR
a0d0e21e 1171# ifdef VMS
20ce7b12 1172 char *strerror (int,...);
a0d0e21e 1173# else
68dc0745 1174#ifndef DONT_DECLARE_STD
20ce7b12 1175 char *strerror (int);
68dc0745 1176#endif
a0d0e21e 1177# endif
2304df62
AD		 1178# ifndef Strerror
1179# define Strerror strerror
1180# endif
1181#else
1182# ifdef HAS_SYS_ERRLIST
79072805
LW		 1183 extern int sys_nerr;
1184 extern char *sys_errlist[];
2304df62
AD		 1185# ifndef Strerror
1186# define Strerror(e) \
79072805 1187 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 1188# endif
79072805 1189# endif
35c8bce7 1190#endif
663a0e37 1191
2304df62 1192#ifdef I_SYS_IOCTL
79072805
LW		 1193# ifndef _IOCTL_
1194# include <sys/ioctl.h>
1195# endif
a687059c
LW		 1196#endif
1197
ee0007ab 1198#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 1199# ifdef HAS_SOCKETPAIR
1200# undef HAS_SOCKETPAIR
1201# endif
2304df62
AD		 1202# ifdef I_NDBM
1203# undef I_NDBM
79072805 1204# endif
a687059c
LW		 1205#endif
1206
02fc2eee
NC		 1207#ifndef HAS_SOCKETPAIR
1208# ifdef HAS_SOCKET
1209# define socketpair Perl_my_socketpair
1210# endif
1211#endif
1212
a687059c 1213#if INTSIZE == 2
79072805
LW		 1214# define htoni htons
1215# define ntohi ntohs
a687059c 1216#else
79072805
LW		 1217# define htoni htonl
1218# define ntohi ntohl
a687059c
LW		 1219#endif
1220
a0d0e21e 1221/* Configure already sets Direntry_t */
35c8bce7 1222#if defined(I_DIRENT)
663a0e37 1223# include <dirent.h>
8f1f23e8
W		 1224 /* NeXT needs dirent + sys/dir.h */
1225# if defined(I_SYS_DIR) && (defined(NeXT) || defined(__NeXT__))
a0d0e21e
LW		 1226# include <sys/dir.h>
1227# endif
ae986130 1228#else
fe14fcc3 1229# ifdef I_SYS_NDIR
79a0689e 1230# include <sys/ndir.h>
663a0e37 1231# else
fe14fcc3 1232# ifdef I_SYS_DIR
79a0689e
LW		 1233# ifdef hp9000s500
1234# include <ndir.h> /* may be wrong in the future */
1235# else
1236# include <sys/dir.h>
1237# endif
663a0e37
LW		 1238# endif
1239# endif
4633a7c4 1240#endif
a687059c 1241
12ae5dfc
JH		 1242#ifdef PERL_MICRO
1243# ifndef DIR
1244# define DIR void
1245# endif
1246#endif
1247
352d5a3a
LW		 1248#ifdef FPUTS_BOTCH
1249/* work around botch in SunOS 4.0.1 and 4.0.2 */
1250# ifndef fputs
79072805 1251# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW		 1252# endif
1253#endif
1254
c623bd54
LW		 1255/*
1256 * The following gobbledygook brought to you on behalf of __STDC__.
1257 * (I could just use #ifndef __STDC__, but this is more bulletproof
1258 * in the face of half-implementations.)
1259 */
1260
7114a2d2 1261#if defined(I_SYSMODE) && !defined(PERL_MICRO)
ca6e1c26
JH		 1262#include <sys/mode.h>
1263#endif
1264
c623bd54
LW		 1265#ifndef S_IFMT
1266# ifdef _S_IFMT
1267# define S_IFMT _S_IFMT
1268# else
1269# define S_IFMT 0170000
1270# endif
1271#endif
1272
1273#ifndef S_ISDIR
1274# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1275#endif
1276
1277#ifndef S_ISCHR
1278# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1279#endif
1280
1281#ifndef S_ISBLK
fe14fcc3
LW		 1282# ifdef S_IFBLK
1283# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1284# else
1285# define S_ISBLK(m) (0)
1286# endif
c623bd54
LW		 1287#endif
1288
1289#ifndef S_ISREG
1290# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1291#endif
1292
1293#ifndef S_ISFIFO
fe14fcc3
LW		 1294# ifdef S_IFIFO
1295# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1296# else
1297# define S_ISFIFO(m) (0)
1298# endif
c623bd54
LW		 1299#endif
1300
1301#ifndef S_ISLNK
1302# ifdef _S_ISLNK
1303# define S_ISLNK(m) _S_ISLNK(m)
1304# else
1305# ifdef _S_IFLNK
1306# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1307# else
1308# ifdef S_IFLNK
1309# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1310# else
1311# define S_ISLNK(m) (0)
1312# endif
1313# endif
1314# endif
1315#endif
1316
1317#ifndef S_ISSOCK
1318# ifdef _S_ISSOCK
1319# define S_ISSOCK(m) _S_ISSOCK(m)
1320# else
1321# ifdef _S_IFSOCK
1322# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1323# else
1324# ifdef S_IFSOCK
1325# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1326# else
1327# define S_ISSOCK(m) (0)
1328# endif
1329# endif
1330# endif
1331#endif
1332
1333#ifndef S_IRUSR
1334# ifdef S_IREAD
1335# define S_IRUSR S_IREAD
1336# define S_IWUSR S_IWRITE
1337# define S_IXUSR S_IEXEC
1338# else
1339# define S_IRUSR 0400
1340# define S_IWUSR 0200
1341# define S_IXUSR 0100
1342# endif
fac7cdfc
JS		 1343#endif
1344
1345#ifndef S_IRGRP
1346# ifdef S_IRUSR
1347# define S_IRGRP (S_IRUSR>>3)
1348# define S_IWGRP (S_IWUSR>>3)
1349# define S_IXGRP (S_IXUSR>>3)
1350# else
1351# define S_IRGRP 0040
1352# define S_IWGRP 0020
1353# define S_IXGRP 0010
1354# endif
1355#endif
1356
1357#ifndef S_IROTH
1358# ifdef S_IRUSR
1359# define S_IROTH (S_IRUSR>>6)
1360# define S_IWOTH (S_IWUSR>>6)
1361# define S_IXOTH (S_IXUSR>>6)
1362# else
1363# define S_IROTH 0040
1364# define S_IWOTH 0020
1365# define S_IXOTH 0010
1366# endif
c623bd54
LW		 1367#endif
1368
1369#ifndef S_ISUID
1370# define S_ISUID 04000
1371#endif
1372
1373#ifndef S_ISGID
1374# define S_ISGID 02000
1375#endif
1376
ca6e1c26
JH		 1377#ifndef S_IRWXU
1378# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1379#endif
ca6e1c26
JH		 1380
1381#ifndef S_IRWXG
1382# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1383#endif
ca6e1c26
JH		 1384
1385#ifndef S_IRWXO
1386# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1387#endif
ca6e1c26 1388
c21fb2b8
JH		 1389/* BeOS 5.0 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1390 * which would get included through <sys/file.h >, but that is 3000
1391 * lines in the future. --jhi */
1392
1393#if !defined(S_IREAD) && !defined(__BEOS__)
ca6e1c26
JH		 1394# define S_IREAD S_IRUSR
1395#endif
1396
c21fb2b8 1397#if !defined(S_IWRITE) && !defined(__BEOS__)
ca6e1c26
JH		 1398# define S_IWRITE S_IWUSR
1399#endif
1400
1401#ifndef S_IEXEC
1402# define S_IEXEC S_IXUSR
1403#endif
1404
79072805
LW		 1405#ifdef ff_next
1406# undef ff_next
352d5a3a
LW		 1407#endif
1408
a0d0e21e 1409#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 1410# define SLOPPYDIVIDE
1411#endif
1412
748a9306
LW		 1413#ifdef UV
1414#undef UV
1415#endif
1416
c89df6bf
JH		 1417#ifdef SPRINTF_E_BUG
1418# define sprintf UTS_sprintf_wrap
1419#endif
1420
ce582cee
NC		 1421/* For the times when you want the return value of sprintf, and you want it
1422 to be the length. Can't have a thread variable passed in, because C89 has
1423 no varargs macros.
1424*/
1425#ifdef SPRINTF_RETURNS_STRLEN
1426# define my_sprintf sprintf
1427#else
1428# define my_sprintf Perl_my_sprintf
1429#endif
1430
c495e728
JH		 1431/* Configure gets this right but the UTS compiler gets it wrong.
1432 -- Hal Morris <hom00@utsglobal.com> */
1433#ifdef UTS
1434# undef UVTYPE
1435# define UVTYPE unsigned
1436#endif
1437
05f13f53 1438/*
27d4fb96 1439 The IV type is supposed to be long enough to hold any integral
1440 value or a pointer.
1441 --Andy Dougherty August 1996
1442*/
1443
a22e52b9
JH		 1444typedef IVTYPE IV;
1445typedef UVTYPE UV;
8175356b 1446
10cc9d2a 1447#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1448# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS		 1449# define IV_MAX INT64_MAX
1450# define IV_MIN INT64_MIN
1451# define UV_MAX UINT64_MAX
cae7ae48
JH		 1452# ifndef UINT64_MIN
1453# define UINT64_MIN 0
1454# endif
5ff3f7a4
GS		 1455# define UV_MIN UINT64_MIN
1456# else
1457# define IV_MAX PERL_QUAD_MAX
1458# define IV_MIN PERL_QUAD_MIN
1459# define UV_MAX PERL_UQUAD_MAX
1460# define UV_MIN PERL_UQUAD_MIN
1461# endif
cf2093f6
JH		 1462# define IV_IS_QUAD
1463# define UV_IS_QUAD
79072805 1464#else
8175356b 1465# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS		 1466# define IV_MAX INT32_MAX
1467# define IV_MIN INT32_MIN
716026f9
DL		 1468# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1469# define UV_MAX UINT32_MAX
1470# else
1471# define UV_MAX 4294967295U
1472# endif
cae7ae48
JH		 1473# ifndef UINT32_MIN
1474# define UINT32_MIN 0
1475# endif
5ff3f7a4
GS		 1476# define UV_MIN UINT32_MIN
1477# else
1478# define IV_MAX PERL_LONG_MAX
1479# define IV_MIN PERL_LONG_MIN
1480# define UV_MAX PERL_ULONG_MAX
1481# define UV_MIN PERL_ULONG_MIN
1482# endif
8175356b 1483# if IVSIZE == 8
cf2093f6
JH		 1484# define IV_IS_QUAD
1485# define UV_IS_QUAD
de1c2614
JH		 1486# ifndef HAS_QUAD
1487# define HAS_QUAD
1488# endif
cf2093f6
JH		 1489# else
1490# undef IV_IS_QUAD
1491# undef UV_IS_QUAD
de1c2614 1492# undef HAS_QUAD
cf2093f6 1493# endif
79072805 1494#endif
d7d93a81 1495
1109a392
MHM		 1496#ifndef HAS_QUAD
1497# undef PERL_NEED_MY_HTOLE64
1498# undef PERL_NEED_MY_LETOH64
1499# undef PERL_NEED_MY_HTOBE64
1500# undef PERL_NEED_MY_BETOH64
1501#endif
1502
6cde8aec 1503#if defined(uts) || defined(UTS)
11afe549
HM		 1504# undef UV_MAX
1505# define UV_MAX (4294967295u)
20601011
JH		 1506#endif
1507
cae7ae48 1508#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1509#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1510
28e5dec8 1511#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1512#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH		 1513#endif
1514
d460ef45 1515/*
26bb67e2
JH		 1516 * The macros INT2PTR and NUM2PTR are (despite their names)
1517 * bi-directional: they will convert int/float to or from pointers.
1518 * However the conversion to int/float are named explicitly:
1519 * PTR2IV, PTR2UV, PTR2NV.
1520 *
1521 * For int conversions we do not need two casts if pointers are
1522 * the same size as IV and UV. Otherwise we need an explicit
1523 * cast (PTRV) to avoid compiler warnings.
1524 */
56431972
RB		 1525#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1526# define PTRV UV
1527# define INT2PTR(any,d) (any)(d)
1528#else
d460ef45 1529# if PTRSIZE == LONGSIZE
56431972 1530# define PTRV unsigned long
e91e3b10 1531# define PTR2ul(p) (unsigned long)(p)
42718184 1532# else
56431972 1533# define PTRV unsigned
42718184 1534# endif
e91e3b10
RB		 1535#endif
1536
1537#ifndef INT2PTR
56431972 1538# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1539#endif
e91e3b10
RB		 1540
1541#ifndef PTR2ul
1542# define PTR2ul(p) INT2PTR(unsigned long,p)
1543#endif
1544
56431972
RB		 1545#define NUM2PTR(any,d) (any)(PTRV)(d)
1546#define PTR2IV(p) INT2PTR(IV,p)
1547#define PTR2UV(p) INT2PTR(UV,p)
1548#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1549#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1550
8141890a
JH		 1551/* According to strict ANSI C89 one cannot freely cast between
1552 * data pointers and function (code) pointers. There are at least
1553 * two ways around this. One (used below) is to do two casts,
1554 * first the other pointer to an (unsigned) integer, and then
1555 * the integer to the other pointer. The other way would be
1556 * to use unions to "overlay" the pointers. For an example of
1557 * the latter technique, see union dirpu in struct xpvio in sv.h.
1558 * The only feasible use is probably temporarily storing
1559 * function pointers in a data pointer (such as a void pointer). */
1560
e91e3b10
RB		 1561#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1562#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1563
65202027 1564#ifdef USE_LONG_DOUBLE
1048ea30
JH		 1565# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1566# define LONG_DOUBLE_EQUALS_DOUBLE
1567# endif
68d4903c 1568# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1569# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS		 1570# endif
1571#endif
1572
2d4389e4
JH		 1573#ifdef OVR_DBL_DIG
1574/* Use an overridden DBL_DIG */
1575# ifdef DBL_DIG
1576# undef DBL_DIG
1577# endif
1578# define DBL_DIG OVR_DBL_DIG
1579#else
1580/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS		 1581 default value for printing floating point numbers in Gconvert
1582 (see config.h). (It also has other uses, such as figuring out if
1583 a given precision of printing can be done with a double instead of
1584 a long double - Allen).
2d4389e4
JH		 1585*/
1586#ifdef I_LIMITS
1587#include <limits.h>
1588#endif
1589#ifdef I_FLOAT
1590#include <float.h>
1591#endif
1592#ifndef HAS_DBL_DIG
1593#define DBL_DIG 15 /* A guess that works lots of places */
1594#endif
1595#endif
cbca01e1
JH		 1596#ifdef I_FLOAT
1597#include <float.h>
1598#endif
1599#ifndef HAS_DBL_DIG
1600#define DBL_DIG 15 /* A guess that works lots of places */
1601#endif
2d4389e4
JH		 1602
1603#ifdef OVR_LDBL_DIG
1604/* Use an overridden LDBL_DIG */
1605# ifdef LDBL_DIG
1606# undef LDBL_DIG
1607# endif
1608# define LDBL_DIG OVR_LDBL_DIG
1609#else
1610/* The following is all to get LDBL_DIG, in order to pick a nice
1611 default value for printing floating point numbers in Gconvert.
1612 (see config.h)
1613*/
68d4903c
JH		 1614# ifdef I_LIMITS
1615# include <limits.h>
1616# endif
1617# ifdef I_FLOAT
1618# include <float.h>
1619# endif
1620# ifndef HAS_LDBL_DIG
1621# if LONG_DOUBLESIZE == 10
1622# define LDBL_DIG 18 /* assume IEEE */
1623# else
1624# if LONG_DOUBLESIZE == 12
1625# define LDBL_DIG 18 /* gcc? */
1626# else
1627# if LONG_DOUBLESIZE == 16
1628# define LDBL_DIG 33 /* assume IEEE */
1629# else
1630# if LONG_DOUBLESIZE == DOUBLESIZE
1631# define LDBL_DIG DBL_DIG /* bummer */
1632# endif
1633# endif
1634# endif
1635# endif
1636# endif
2d4389e4
JH		 1637#endif
1638
20f6aaab
AS		 1639/*
1640 * This is for making sure we have a good DBL_MAX value, if possible,
1641 * either for usage as NV_MAX or for usage in figuring out if we can
1642 * fit a given long double into a double, if bug-fixing makes it
1643 * necessary to do so. - Allen <allens@cpan.org>
1644 */
1645
205f51d8
AS		 1646#ifdef I_LIMITS
1647# include <limits.h>
20f6aaab
AS		 1648#endif
1649
205f51d8
AS		 1650#ifdef I_VALUES
1651# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1652# include <values.h>
1653# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1654# define DBL_MAX MAXDOUBLE
1655# endif
1656# if defined(MINDOUBLE) && !defined(DBL_MIN)
1657# define DBL_MIN MINDOUBLE
1658# endif
1659# endif
1660#endif /* defined(I_VALUES) */
1661
a22e52b9 1662typedef NVTYPE NV;
8175356b 1663
792d8dab
JH		 1664#ifdef I_IEEEFP
1665# include <ieeefp.h>
1666#endif
923fc586 1667
65202027 1668#ifdef USE_LONG_DOUBLE
923fc586
JH		 1669# ifdef I_SUNMATH
1670# include <sunmath.h>
1671# endif
2d4389e4 1672# define NV_DIG LDBL_DIG
d6c14000
JH		 1673# ifdef LDBL_MANT_DIG
1674# define NV_MANT_DIG LDBL_MANT_DIG
1675# endif
06fc1729
JH		 1676# ifdef LDBL_MIN
1677# define NV_MIN LDBL_MIN
1678# endif
1679# ifdef LDBL_MAX
1680# define NV_MAX LDBL_MAX
1681# endif
1682# ifdef LDBL_MIN_10_EXP
1683# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1684# endif
1685# ifdef LDBL_MAX_10_EXP
1686# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1687# endif
1688# ifdef LDBL_EPSILON
1689# define NV_EPSILON LDBL_EPSILON
1690# endif
f4a14a62
JH		 1691# ifdef LDBL_MAX
1692# define NV_MAX LDBL_MAX
20f6aaab 1693/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62
JH		 1694# else
1695# ifdef HUGE_VALL
1696# define NV_MAX HUGE_VALL
1697# else
1698# ifdef HUGE_VAL
1699# define NV_MAX ((NV)HUGE_VAL)
1700# endif
1701# endif
1702# endif
68d4903c 1703# ifdef HAS_SQRTL
68d4903c
JH		 1704# define Perl_cos cosl
1705# define Perl_sin sinl
1706# define Perl_sqrt sqrtl
1707# define Perl_exp expl
1708# define Perl_log logl
1709# define Perl_atan2 atan2l
1710# define Perl_pow powl
1711# define Perl_floor floorl
1bbae031 1712# define Perl_ceil ceill
68d4903c
JH		 1713# define Perl_fmod fmodl
1714# endif
a3540c92
JH		 1715/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1716# ifdef HAS_MODFL
1717# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC		 1718/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1719 prototype in <math.h> */
1720# ifndef HAS_MODFL_PROTO
a221a8a5 1721EXTERN_C long double modfl(long double, long double *);
51997bc3 1722# endif
03476e8e
JH		 1723# else
1724# if defined(HAS_AINTL) && defined(HAS_COPYSIGNL)
55954f19 1725 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e
JH		 1726# define Perl_modf(x,y) Perl_my_modfl(x,y)
1727# endif
a3540c92
JH		 1728# endif
1729# ifdef HAS_FREXPL
dff3e0b8 1730# define Perl_frexp(x,y) frexpl(x,y)
03476e8e
JH		 1731# else
1732# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
55954f19 1733 extern long double Perl_my_frexpl(long double x, int *e);
03476e8e
JH		 1734# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1735# endif
a3540c92 1736# endif
38dbb4c5 1737# ifndef Perl_isnan
758a5d79
JH		 1738# ifdef HAS_ISNANL
1739# define Perl_isnan(x) isnanl(x)
1740# endif
1741# endif
1742# ifndef Perl_isinf
1743# ifdef HAS_FINITEL
1744# define Perl_isinf(x) !(finitel(x)||Perl_isnan(x))
a3540c92
JH		 1745# endif
1746# endif
65202027 1747#else
2d4389e4 1748# define NV_DIG DBL_DIG
d6c14000
JH		 1749# ifdef DBL_MANT_DIG
1750# define NV_MANT_DIG DBL_MANT_DIG
1751# endif
06fc1729
JH		 1752# ifdef DBL_MIN
1753# define NV_MIN DBL_MIN
1754# endif
1755# ifdef DBL_MAX
1756# define NV_MAX DBL_MAX
1757# endif
1758# ifdef DBL_MIN_10_EXP
1759# define NV_MIN_10_EXP DBL_MIN_10_EXP
1760# endif
1761# ifdef DBL_MAX_10_EXP
1762# define NV_MAX_10_EXP DBL_MAX_10_EXP
1763# endif
1764# ifdef DBL_EPSILON
1765# define NV_EPSILON DBL_EPSILON
1766# endif
205f51d8 1767# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH		 1768# define NV_MAX DBL_MAX
1769# define NV_MIN DBL_MIN
1770# else
1771# ifdef HUGE_VAL
1772# define NV_MAX HUGE_VAL
1773# endif
1774# endif
65202027
DS		 1775# define Perl_cos cos
1776# define Perl_sin sin
1777# define Perl_sqrt sqrt
1778# define Perl_exp exp
1779# define Perl_log log
1780# define Perl_atan2 atan2
1781# define Perl_pow pow
1782# define Perl_floor floor
1bbae031 1783# define Perl_ceil ceil
65202027 1784# define Perl_fmod fmod
a3540c92 1785# define Perl_modf(x,y) modf(x,y)
dff3e0b8 1786# define Perl_frexp(x,y) frexp(x,y)
758a5d79
JH		 1787#endif
1788
1789/* rumor has it that Win32 has _fpclass() */
1790
205f51d8
AS		 1791/* SGI has fpclassl... but not with the same result values,
1792 * and it's via a typedef (not via #define), so will need to redo Configure
1793 * to use. Not worth the trouble, IMO, at least until the below is used
1794 * more places. Also has fp_class_l, BTW, via fp_class.h. Feel free to check
1795 * with me for the SGI manpages, SGI testing, etcetera, if you want to
1796 * try getting this to work with IRIX. - Allen <allens@cpan.org> */
1797
758a5d79
JH		 1798#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
1799# ifdef I_IEEFP
1800# include <ieeefp.h>
1801# endif
1802# ifdef I_FP
1803# include <fp.h>
1804# endif
1805# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
1806# define Perl_fp_class() fpclassl(x)
1807# else
1808# define Perl_fp_class() fpclass(x)
1809# endif
1810# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
1811# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
1812# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_CLASS_SNAN||Perl_fp_class(x)==FP_CLASS_QNAN)
1813# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
1814# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
1815# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_CLASS_NINF||Perl_fp_class(x)==FP_CLASS_PINF)
1816# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
1817# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
1818# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_CLASS_NNORM||Perl_fp_class(x)==FP_CLASS_PNORM)
1819# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
1820# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
1821# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM||Perl_fp_class(x)==FP_CLASS_PDENORM)
1822# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
1823# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
1824# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_CLASS_NZERO||Perl_fp_class(x)==FP_CLASS_PZERO)
1825#endif
1826
7114a2d2 1827#if !defined(Perl_fp_class) && defined(HAS_FP_CLASS) && !defined(PERL_MICRO)
758a5d79
JH		 1828# include <math.h>
1829# if !defined(FP_SNAN) && defined(I_FP_CLASS)
1830# include <fp_class.h>
1831# endif
1832# define Perl_fp_class(x) fp_class(x)
1833# define Perl_fp_class_snan(x) (fp_class(x)==FP_SNAN)
1834# define Perl_fp_class_qnan(x) (fp_class(x)==FP_QNAN)
1835# define Perl_fp_class_nan(x) (fp_class(x)==FP_SNAN||fp_class(x)==FP_QNAN)
1836# define Perl_fp_class_ninf(x) (fp_class(x)==FP_NEG_INF)
1837# define Perl_fp_class_pinf(x) (fp_class(x)==FP_POS_INF)
1838# define Perl_fp_class_inf(x) (fp_class(x)==FP_NEG_INF||fp_class(x)==FP_POS_INF)
1839# define Perl_fp_class_nnorm(x) (fp_class(x)==FP_NEG_NORM)
1840# define Perl_fp_class_pnorm(x) (fp_class(x)==FP_POS_NORM)
1841# define Perl_fp_class_norm(x) (fp_class(x)==FP_NEG_NORM||fp_class(x)==FP_POS_NORM)
1842# define Perl_fp_class_ndenorm(x) (fp_class(x)==FP_NEG_DENORM)
1843# define Perl_fp_class_pdenorm(x) (fp_class(x)==FP_POS_DENORM)
1844# define Perl_fp_class_denorm(x) (fp_class(x)==FP_NEG_DENORM||fp_class(x)==FP_POS_DENORM)
1845# define Perl_fp_class_nzero(x) (fp_class(x)==FP_NEG_ZERO)
1846# define Perl_fp_class_pzero(x) (fp_class(x)==FP_POS_ZERO)
1847# define Perl_fp_class_zero(x) (fp_class(x)==FP_NEG_ZERO||fp_class(x)==FP_POS_ZERO)
1848#endif
1849
1850#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
1851# include <math.h>
1852# define Perl_fp_class(x) fpclassify(x)
38dbb4c5 1853# define Perl_fp_class_nan(x) (fp_classify(x)==FP_SNAN||fp_classify(x)==FP_QNAN)
758a5d79
JH		 1854# define Perl_fp_class_inf(x) (fp_classify(x)==FP_INFINITE)
1855# define Perl_fp_class_norm(x) (fp_classify(x)==FP_NORMAL)
1856# define Perl_fp_class_denorm(x) (fp_classify(x)==FP_SUBNORMAL)
1857# define Perl_fp_class_zero(x) (fp_classify(x)==FP_ZERO)
1858#endif
1859
1860#if !defined(Perl_fp_class) && defined(HAS_CLASS)
1861# include <math.h>
1862# ifndef _cplusplus
1863# define Perl_fp_class(x) class(x)
1864# else
1865# define Perl_fp_class(x) _class(x)
1866# endif
1867# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
1868# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
1869# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_SNAN||Perl_fp_class(x)==FP_QNAN)
1870# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
1871# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
1872# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_MINUS_INF||Perl_fp_class(x)==FP_PLUS_INF)
1873# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
1874# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1875# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_MINUS_NORM||Perl_fp_class(x)==FP_PLUS_NORM)
1876# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
1877# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
1878# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM||Perl_fp_class(x)==FP_PLUS_DENORM)
1879# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
1880# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
1881# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_MINUS_ZERO||Perl_fp_class(x)==FP_PLUS_ZERO)
1882#endif
1883
1884/* rumor has it that Win32 has _isnan() */
1885
1886#ifndef Perl_isnan
a3540c92 1887# ifdef HAS_ISNAN
758a5d79
JH		 1888# define Perl_isnan(x) isnan((NV)x)
1889# else
1890# ifdef Perl_fp_class_nan
1891# define Perl_isnan(x) Perl_fp_class_nan(x)
1892# else
1893# ifdef HAS_UNORDERED
1894# define Perl_isnan(x) unordered((x), 0.0)
1895# else
1896# define Perl_isnan(x) ((x)!=(x))
1897# endif
1898# endif
1899# endif
1900#endif
1901
ca6c63e1
JH		 1902#ifdef UNDER_CE
1903int isnan(double d);
1904#endif
1905
758a5d79
JH		 1906#ifndef Perl_isinf
1907# ifdef HAS_ISINF
1908# define Perl_isinf(x) isinf((NV)x)
a3540c92 1909# else
758a5d79
JH		 1910# ifdef Perl_fp_class_inf
1911# define Perl_isinf(x) Perl_fp_class_inf(x)
1912# else
1913# define Perl_isinf(x) ((x)==NV_INF)
1914# endif
1915# endif
1916#endif
1917
1918#ifndef Perl_isfinite
1919# ifdef HAS_FINITE
1920# define Perl_isfinite(x) finite((NV)x)
1921# else
1922# ifdef HAS_ISFINITE
1923# define Perl_isfinite(x) isfinite(x)
1924# else
1925# ifdef Perl_fp_class_finite
1926# define Perl_isfinite(x) Perl_fp_class_finite(x)
1927# else
1928# define Perl_isfinite(x) !(Perl_is_inf(x)||Perl_is_nan(x))
1929# endif
1930# endif
a3540c92 1931# endif
65202027
DS		 1932#endif
1933
a36244b7
JH		 1934/* The default is to use Perl's own atof() implementation (in numeric.c).
1935 * Usually that is the one to use but for some platforms (e.g. UNICOS)
1936 * it is however best to use the native implementation of atof.
1937 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
1938 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS		 1939 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
1940 * you may need to be using a different function than atof! */
a36244b7
JH		 1941
1942#ifndef USE_PERL_ATOF
1943# ifndef _UNICOS
1944# define USE_PERL_ATOF
1945# endif
1946#else
1947# if USE_PERL_ATOF == 0
1948# undef USE_PERL_ATOF
1949# endif
1950#endif
1951
1952#ifdef USE_PERL_ATOF
1953# define Perl_atof(s) Perl_my_atof(s)
1954# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
1955#else
1956# define Perl_atof(s) (NV)atof(s)
1957# define Perl_atof2(s, n) ((n) = atof(s))
1958#endif
cf2093f6 1959
d460ef45 1960/* Previously these definitions used hardcoded figures.
760ac839
LW		 1961 * It is hoped these formula are more portable, although
1962 * no data one way or another is presently known to me.
1963 * The "PERL_" names are used because these calculated constants
1964 * do not meet the ANSI requirements for LONG_MAX, etc., which
1965 * need to be constants acceptable to #if - kja
1966 * define PERL_LONG_MAX 2147483647L
1967 * define PERL_LONG_MIN (-LONG_MAX - 1)
1968 * define PERL ULONG_MAX 4294967295L
1969 */
1970
1971#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
1972# include <limits.h>
760ac839 1973#endif
205f51d8
AS		 1974/* Included values.h above if necessary; still including limits.h down here,
1975 * despite doing above, because math.h might have overriden... XXX - Allen */
760ac839 1976
99abf803 1977/*
1978 * Try to figure out max and min values for the integral types. THE CORRECT
1979 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
1980 * following hacks are used if neither limits.h or values.h provide them:
1981 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
1982 * for types < int: (unsigned TYPE)~(unsigned)0
1983 * The argument to ~ must be unsigned so that later signed->unsigned
1984 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
1985 * and it must not be smaller than int because ~ does integral promotion.
1986 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
1987 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
1988 * The latter is a hack which happens to work on some machines but
1989 * does *not* catch any random system, or things like integer types
1990 * with NaN if that is possible.
1991 *
1992 * All of the types are explicitly cast to prevent accidental loss of
1993 * numeric range, and in the hope that they will be less likely to confuse
1994 * over-eager optimizers.
1995 *
1996 */
27d4fb96 1997
99abf803 1998#define PERL_UCHAR_MIN ((unsigned char)0)
1999
2000#ifdef UCHAR_MAX
2001# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2002#else
99abf803 2003# ifdef MAXUCHAR
2004# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2005# else
99abf803 2006# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 2007# endif
2008#endif
d460ef45 2009
99abf803 2010/*
2011 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2012 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2013 * depending on local options. Until Configure detects this (or at least
2014 * detects whether the "signed" keyword is available) the CHAR ranges
2015 * will not be included. UCHAR functions normally.
2016 * - kja
2017 */
27d4fb96 2018
99abf803 2019#define PERL_USHORT_MIN ((unsigned short)0)
2020
2021#ifdef USHORT_MAX
2022# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2023#else
99abf803 2024# ifdef MAXUSHORT
2025# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2026# else
ef2f54b0
CB		 2027# ifdef USHRT_MAX
2028# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2029# else
2030# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2031# endif
27d4fb96 2032# endif
2033#endif
2034
27d4fb96 2035#ifdef SHORT_MAX
99abf803 2036# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 2037#else
2038# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2039# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2040# else
ef2f54b0
CB		 2041# ifdef SHRT_MAX
2042# define PERL_SHORT_MAX ((short)SHRT_MAX)
2043# else
2044# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2045# endif
27d4fb96 2046# endif
2047#endif
2048
2049#ifdef SHORT_MIN
99abf803 2050# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 2051#else
2052# ifdef MINSHORT
99abf803 2053# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2054# else
ef2f54b0
CB		 2055# ifdef SHRT_MIN
2056# define PERL_SHORT_MIN ((short)SHRT_MIN)
2057# else
2058# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2059# endif
27d4fb96 2060# endif
2061#endif
2062
99abf803 2063#ifdef UINT_MAX
2064# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2065#else
99abf803 2066# ifdef MAXUINT
2067# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2068# else
99abf803 2069# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 2070# endif
2071#endif
2072
99abf803 2073#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2074
2075#ifdef INT_MAX
99abf803 2076# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 2077#else
2078# ifdef MAXINT /* Often used in <values.h> */
99abf803 2079# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2080# else
99abf803 2081# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 2082# endif
2083#endif
2084
2085#ifdef INT_MIN
99abf803 2086# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2087#else
2088# ifdef MININT
99abf803 2089# define PERL_INT_MIN ((int)MININT)
27d4fb96 2090# else
2091# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2092# endif
2093#endif
2094
99abf803 2095#ifdef ULONG_MAX
2096# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2097#else
99abf803 2098# ifdef MAXULONG
2099# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2100# else
99abf803 2101# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 2102# endif
2103#endif
2104
99abf803 2105#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2106
760ac839 2107#ifdef LONG_MAX
99abf803 2108# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 2109#else
2110# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2111# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2112# else
99abf803 2113# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 2114# endif
2115#endif
2116
2117#ifdef LONG_MIN
99abf803 2118# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 2119#else
2120# ifdef MINLONG
99abf803 2121# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2122# else
27d4fb96 2123# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 2124# endif
2125#endif
2126
d7d93a81 2127#ifdef UV_IS_QUAD
99abf803 2128
99abf803 2129# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2130# define PERL_UQUAD_MIN ((UV)0)
99abf803 2131# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2132# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2133
79072805
LW		 2134#endif
2135
22f7c9c9
JH		 2136#ifdef MYMALLOC
2137# include "malloc_ctl.h"
2138#endif
2139
830247a4 2140struct RExC_state_t;
880b20b6 2141
ee0007ab 2142typedef MEM_SIZE STRLEN;
450a55e4 2143
79072805
LW		 2144typedef struct op OP;
2145typedef struct cop COP;
2146typedef struct unop UNOP;
2147typedef struct binop BINOP;
2148typedef struct listop LISTOP;
2149typedef struct logop LOGOP;
79072805
LW		 2150typedef struct pmop PMOP;
2151typedef struct svop SVOP;
7934575e 2152typedef struct padop PADOP;
79072805 2153typedef struct pvop PVOP;
79072805
LW		 2154typedef struct loop LOOP;
2155
cd1541b2
NC		 2156typedef struct interpreter PerlInterpreter;
2157
d2b3f365
SS		 2158/* Amdahl's <ksync.h> has struct sv */
2159/* SGI's <sys/sema.h> has struct sv */
2160#if defined(UTS) || defined(__sgi)
2161# define STRUCT_SV perl_sv
b8d3c5db
JH		 2162#else
2163# define STRUCT_SV sv
2164#endif
2165typedef struct STRUCT_SV SV;
79072805
LW		 2166typedef struct av AV;
2167typedef struct hv HV;
2168typedef struct cv CV;
378cc40b 2169typedef struct regexp REGEXP;
79072805 2170typedef struct gp GP;
0c30d9ec 2171typedef struct gv GV;
8990e307 2172typedef struct io IO;
c09156bb 2173typedef struct context PERL_CONTEXT;
79072805
LW		 2174typedef struct block BLOCK;
2175
2176typedef struct magic MAGIC;
2177typedef struct xpv XPV;
2178typedef struct xpviv XPVIV;
ff68c719 2179typedef struct xpvuv XPVUV;
79072805
LW		 2180typedef struct xpvnv XPVNV;
2181typedef struct xpvmg XPVMG;
2182typedef struct xpvlv XPVLV;
2183typedef struct xpvav XPVAV;
2184typedef struct xpvhv XPVHV;
2185typedef struct xpvgv XPVGV;
2186typedef struct xpvcv XPVCV;
2187typedef struct xpvbm XPVBM;
2188typedef struct xpvfm XPVFM;
8990e307 2189typedef struct xpvio XPVIO;
79072805
LW		 2190typedef struct mgvtbl MGVTBL;
2191typedef union any ANY;
5f7fde29
GS		 2192typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2193typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS		 2194typedef struct clone_params CLONE_PARAMS;
2195
378cc40b 2196#include "handy.h"
a0d0e21e 2197
6b8eaf93 2198#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH		 2199# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2200# define USE_64_BIT_RAWIO /* implicit */
2201# endif
4564133c
JH		 2202#endif
2203
6b8eaf93
JH		 2204/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2205 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2206 * however, because operating systems like to do that themself. */
2207#ifndef FSEEKSIZE
2208# ifdef HAS_FSEEKO
2209# define FSEEKSIZE LSEEKSIZE
2210# else
2211# define FSEEKSIZE LONGSIZE
d460ef45 2212# endif
6b8eaf93
JH		 2213#endif
2214
2215#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH		 2216# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2217# define USE_64_BIT_STDIO /* implicit */
2218# endif
2219#endif
4564133c 2220
09458382 2221#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH		 2222# ifdef HAS_OFF64_T
2223# undef Off_t
2224# define Off_t off64_t
2225# undef LSEEKSIZE
2226# define LSEEKSIZE 8
5ff3f7a4 2227# endif
d9b3e12d
JH		 2228/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2229 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2230 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH		 2231# if defined(USE_OPEN64)
2232# define open open64
5ff3f7a4 2233# endif
d9b3e12d
JH		 2234# if defined(USE_LSEEK64)
2235# define lseek lseek64
6b8eaf93
JH		 2236# else
2237# if defined(USE_LLSEEK)
2238# define lseek llseek
2239# endif
d9b3e12d
JH		 2240# endif
2241# if defined(USE_STAT64)
2242# define stat stat64
2243# endif
2244# if defined(USE_FSTAT64)
2245# define fstat fstat64
2246# endif
2247# if defined(USE_LSTAT64)
2248# define lstat lstat64
2249# endif
2250# if defined(USE_FLOCK64)
2251# define flock flock64
2252# endif
2253# if defined(USE_LOCKF64)
2254# define lockf lockf64
2255# endif
2256# if defined(USE_FCNTL64)
2257# define fcntl fcntl64
2258# endif
2259# if defined(USE_TRUNCATE64)
2260# define truncate truncate64
2261# endif
2262# if defined(USE_FTRUNCATE64)
2263# define ftruncate ftruncate64
2264# endif
2265#endif
2266
2267#ifdef USE_64_BIT_STDIO
2268# ifdef HAS_FPOS64_T
2269# undef Fpos_t
2270# define Fpos_t fpos64_t
2271# endif
2272/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2273 * will trigger defines like the ones below. Some 64-bit environments,
2274 * however, do not. */
2275# if defined(USE_FOPEN64)
2276# define fopen fopen64
2277# endif
2278# if defined(USE_FSEEK64)
6b8eaf93 2279# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH		 2280# endif
2281# if defined(USE_FTELL64)
6b8eaf93 2282# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH		 2283# endif
2284# if defined(USE_FSETPOS64)
2285# define fsetpos fsetpos64
2286# endif
2287# if defined(USE_FGETPOS64)
2288# define fgetpos fgetpos64
2289# endif
2290# if defined(USE_TMPFILE64)
2291# define tmpfile tmpfile64
2292# endif
2293# if defined(USE_FREOPEN64)
2294# define freopen freopen64
5ff3f7a4
GS		 2295# endif
2296#endif
2297
af8b425d 2298#if defined(OS2) || defined(MACOS_TRADITIONAL)
2c2d71f5
JH		 2299# include "iperlsys.h"
2300#endif
2301
6f71a643 2302#if defined(__OPEN_VM)
19848b3f
JH		 2303# include "vmesa/vmesaish.h"
2304# define ISHISH "vmesa"
6f71a643
JH		 2305#endif
2306
748a9306 2307#ifdef DOSISH
19848b3f
JH		 2308# if defined(OS2)
2309# include "os2ish.h"
2310# else
2311# include "dosish.h"
2312# endif
2313# define ISHISH "dos"
2314#endif
2315
2316#if defined(VMS)
748a9306 2317# include "vmsish.h"
96e176bf 2318# include "embed.h"
19848b3f
JH		 2319# define ISHISH "vms"
2320#endif
2321
2322#if defined(PLAN9)
2323# include "./plan9/plan9ish.h"
2324# define ISHISH "plan9"
2325#endif
2326
2327#if defined(MPE)
2328# include "mpeix/mpeixish.h"
2329# define ISHISH "mpeix"
2330#endif
2331
2332#if defined(__VOS__)
196918b0
PG		 2333# ifdef __GNUC__
2334# include "./vos/vosish.h"
2335# else
2336# include "vos/vosish.h"
2337# endif
19848b3f
JH		 2338# define ISHISH "vos"
2339#endif
2340
2341#if defined(EPOC)
2342# include "epocish.h"
2343# define ISHISH "epoc"
2344#endif
2345
9969cdde 2346#ifdef __SYMBIAN32__
27da23d5
JH		 2347# include "symbian/symbianish.h"
2348# include "embed.h"
2349# define ISHISH "symbian"
2350#endif
2351
19848b3f
JH		 2352#if defined(MACOS_TRADITIONAL)
2353# include "macos/macish.h"
2354# ifndef NO_ENVIRON_ARRAY
2355# define NO_ENVIRON_ARRAY
0c30d9ec 2356# endif
19848b3f
JH		 2357# define ISHISH "macos classic"
2358#endif
2359
efca5cc6
JH		 2360#if defined(__BEOS__)
2361# include "beos/beosish.h"
2362# define ISHISH "beos"
2363#endif
2364
19848b3f
JH		 2365#ifndef ISHISH
2366# include "unixish.h"
2367# define ISHISH "unix"
13b6e58c
JH		 2368#endif
2369
2946a158
JH		 2370/* NSIG logic from Configure --> */
2371/* Strange style to avoid deeply-nested #if/#else/#endif */
2372#ifndef NSIG
2373# ifdef _NSIG
2374# define NSIG (_NSIG)
2375# endif
2376#endif
2377
2378#ifndef NSIG
2379# ifdef SIGMAX
2380# define NSIG (SIGMAX+1)
2381# endif
2382#endif
2383
2384#ifndef NSIG
2385# ifdef SIG_MAX
2386# define NSIG (SIG_MAX+1)
2387# endif
2388#endif
2389
2390#ifndef NSIG
2391# ifdef _SIG_MAX
2392# define NSIG (_SIG_MAX+1)
2393# endif
2394#endif
2395
2396#ifndef NSIG
2397# ifdef MAXSIG
2398# define NSIG (MAXSIG+1)
2399# endif
2400#endif
2401
2402#ifndef NSIG
2403# ifdef MAX_SIG
2404# define NSIG (MAX_SIG+1)
2405# endif
2406#endif
2407
2408#ifndef NSIG
2409# ifdef SIGARRAYSIZE
2410# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2411# endif
2412#endif
2413
2414#ifndef NSIG
2415# ifdef _sys_nsig
2416# define NSIG (_sys_nsig) /* Solaris 2.5 */
2417# endif
2418#endif
2419
2420/* Default to some arbitrary number that's big enough to get most
2421 of the common signals.
2422*/
2423#ifndef NSIG
2424# define NSIG 50
2425#endif
2426/* <-- NSIG logic from Configure */
2427
13b6e58c
JH		 2428#ifndef NO_ENVIRON_ARRAY
2429# define USE_ENVIRON_ARRAY
2430#endif
32f822de 2431
c77b533b
JH		 2432/*
2433 * initialise to avoid floating-point exceptions from overflow, etc
2434 */
2435#ifndef PERL_FPU_INIT
2436# ifdef HAS_FPSETMASK
2437# if HAS_FLOATINGPOINT_H
2438# include <floatingpoint.h>
2439# endif
2440# define PERL_FPU_INIT fpsetmask(0);
c77b533b 2441# else
2f42fcb0 2442# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
8aad04aa 2443# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN);
b35112e7
CS		 2444# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2445# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH		 2446# else
2447# define PERL_FPU_INIT
2f42fcb0 2448
7014c407 2449# endif
c77b533b
JH		 2450# endif
2451#endif
b35112e7
CS		 2452#ifndef PERL_FPU_PRE_EXEC
2453# define PERL_FPU_PRE_EXEC {
2454# define PERL_FPU_POST_EXEC }
2455#endif
c77b533b 2456
ed344e4f
IZ		 2457#ifndef PERL_SYS_INIT3
2458# define PERL_SYS_INIT3(argvp,argcp,envp) PERL_SYS_INIT(argvp,argcp)
2459#endif
2460
be708cc0
JH		 2461#ifndef PERL_WRITE_MSG_TO_CONSOLE
2462# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2463#endif
2464
0f31cffe
GS		 2465#ifndef MAXPATHLEN
2466# ifdef PATH_MAX
b990c8b2
JH		 2467# ifdef _POSIX_PATH_MAX
2468# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH		 2469/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2470 * included the null byte or not. Later amendments of POSIX,
2471 * XPG4, the Austin Group, and the Single UNIX Specification
2472 * all explicitly include the null byte in the PATH_MAX.
2473 * Ditto for _POSIX_PATH_MAX. */
2474# define MAXPATHLEN PATH_MAX
b990c8b2 2475# else
09448d78 2476# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2477# endif
2478# else
2479# define MAXPATHLEN (PATH_MAX+1)
2480# endif
0f31cffe 2481# else
b990c8b2 2482# ifdef _POSIX_PATH_MAX
09448d78 2483# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2484# else
2485# define MAXPATHLEN 1024 /* Err on the large side. */
2486# endif
0f31cffe
GS		 2487# endif
2488#endif
2489
c80263a8
SH		 2490/* In case Configure was not used (we are using a "canned config"
2491 * such as Win32, or a cross-compilation setup, for example) try going
2492 * by the gcc major and minor versions. One useful URL is
2493 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2494 * but contrary to this information warn_unused_result seems
2495 * not to be in gcc 3.3.5, at least. --jhi
2496 * Set these up now otherwise we get confused when some of the <*thread.h>
2497 * includes below indirectly pull in <perlio.h> (which needs to know if we
2498 * have HASATTRIBUTE_FORMAT).
2499 */
2500
fc2007d4 2501#if defined __GNUC__ && !defined(__INTEL_COMPILER)
c80263a8
SH		 2502# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2503# define HASATTRIBUTE_FORMAT
2504# endif
2505# if __GNUC__ >= 3 /* 3.0 -> */
2506# define HASATTRIBUTE_MALLOC
2507# endif
2508# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2509# define HASATTRIBUTE_NONNULL
2510# endif
2511# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2512# define HASATTRIBUTE_NORETURN
2513# endif
2514# if __GNUC__ >= 3 /* gcc 3.0 -> */
2515# define HASATTRIBUTE_PURE
2516# endif
2517# if __GNUC__ >= 3 /* gcc 3.0 -> */ /* XXX Verify this version */
2518# define HASATTRIBUTE_UNUSED
2519# endif
2520# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2521# define HASATTRIBUTE_WARN_UNUSED_RESULT
2522# endif
2523#endif
2524
3db8f154 2525/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2526 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS		 2527 * this results in many functions being undeclared which bothers C++
2528 * May make sense to have threads after "*ish.h" anyway
2529 */
2530
3db8f154 2531#if defined(USE_ITHREADS)
2986a63f
JH		 2532# ifdef NETWARE
2533# include <nw5thread.h>
2534# else
32f822de
GS		 2535# ifdef FAKE_THREADS
2536# include "fakethr.h"
2537# else
2538# ifdef WIN32
2539# include <win32thread.h>
2540# else
dd96f567
IZ		 2541# ifdef OS2
2542# include "os2thread.h"
2543# else
7f3d1cf1 2544# ifdef I_MACH_CTHREADS
bdd66968 2545# include <mach/cthreads.h>
8f1f23e8 2546# if (defined(NeXT) || defined(__NeXT__)) && defined(PERL_POLLUTE_MALLOC)
772fe5b3
HM		 2547# define MUTEX_INIT_CALLS_MALLOC
2548# endif
7f3d1cf1
BH		 2549typedef cthread_t perl_os_thread;
2550typedef mutex_t perl_mutex;
2551typedef condition_t perl_cond;
2552typedef void * perl_key;
2553# else /* Posix threads */
1f5ae88c
JH		 2554# ifdef I_PTHREAD
2555# include <pthread.h>
2556# endif
7f3d1cf1
BH		 2557typedef pthread_t perl_os_thread;
2558typedef pthread_mutex_t perl_mutex;
2559typedef pthread_cond_t perl_cond;
2560typedef pthread_key_t perl_key;
2561# endif /* I_MACH_CTHREADS */
dd96f567 2562# endif /* OS2 */
32f822de
GS		 2563# endif /* WIN32 */
2564# endif /* FAKE_THREADS */
2986a63f 2565#endif /* NETWARE */
3db8f154 2566#endif /* USE_ITHREADS */
c5be433b 2567
66a93824 2568#if defined(WIN32)
1feb2720 2569# include "win32.h"
c5be433b
GS		 2570#endif
2571
2986a63f
JH		 2572#ifdef NETWARE
2573# include "netware.h"
2574#endif
2575
e5218da5 2576#define STATUS_UNIX PL_statusvalue
68dc0745 2577#ifdef VMS
6b88bc9c 2578# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM		 2579/*
2580 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2581 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM		 2582 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2583 * be updated also.
2584 */
2585# include <stsdef.h>
2586# include <ssdef.h>
2587/* Presume this because if VMS changes it, it will require a new
2588 * set of APIs for waiting on children for binary compatibility.
2589 */
2590# define child_offset_bits (8)
2591# ifndef C_FAC_POSIX
2592# define C_FAC_POSIX 0x35A000
2593# endif
2594
2595/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2596 * platform from the existing UNIX or Native status values.
2597 */
2598
37038d91 2599# define STATUS_EXIT \
7a7fd8e0
JM		 2600 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2601 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2602
7a7fd8e0 2603
fb38d079
JM		 2604/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2605 * exit code and shifts the UNIX value over the correct number of bits to
2606 * be a child status. Usually the number of bits is 8, but that could be
2607 * platform dependent. The NATIVE status code is presumed to have either
2608 * from a child process.
7a7fd8e0
JM		 2609 */
2610
fb38d079
JM		 2611/* This is complicated. The child processes return a true native VMS
2612 status which must be saved. But there is an assumption in Perl that
2613 the UNIX child status has some relationship to errno values, so
2614 Perl tries to translate it to text in some of the tests.
2615 In order to get the string translation correct, for the error, errno
2616 must be EVMSERR, but that generates a different text message
2617 than what the test programs are expecting. So an errno value must
2618 be derived from the native status value when an error occurs.
2619 That will hide the true native status message. With this version of
2620 perl, the true native child status can always be retrieved so that
2621 is not a problem. But in this case, Pl_statusvalue and errno may
2622 have different values in them.
2623 */
7a7fd8e0 2624
fb38d079 2625# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 2626 STMT_START { \
2fbb330f
JM		 2627 I32 evalue = (I32)n; \
2628 if (evalue == EVMSERR) { \
2629 PL_statusvalue_vms = vaxc$errno; \
2630 PL_statusvalue = evalue; \
7a7fd8e0 2631 } else { \
2fbb330f 2632 PL_statusvalue_vms = evalue; \
fb38d079 2633 if (evalue == -1) { \
3280af22 2634 PL_statusvalue = -1; \
7a7fd8e0
JM		 2635 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2636 } else \
fb38d079 2637 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 2638 set_vaxc_errno(evalue); \
fb38d079
JM		 2639 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
2640 set_errno(EVMSERR); \
2641 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
2642 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 2643 } \
68dc0745 2644 } STMT_END
7a7fd8e0 2645
68dc0745 2646# ifdef VMSISH_STATUS
e5218da5 2647# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 2648# else
e5218da5 2649# define STATUS_CURRENT STATUS_UNIX
68dc0745 2650# endif
7a7fd8e0
JM		 2651
2652 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2653 * the NATIVE status to an equivalent value. Can not be used to translate
2654 * exit code values as exit code values are not guaranteed to have any
2655 * relationship at all to errno values.
2656 * This is used when Perl is forcing errno to have a specific value.
2657 */
e5218da5 2658# define STATUS_UNIX_SET(n) \
68dc0745 2659 STMT_START { \
7a7fd8e0 2660 I32 evalue = (I32)n; \
0968cdad 2661 PL_statusvalue = evalue; \
3280af22 2662 if (PL_statusvalue != -1) { \
0968cdad
JM		 2663 if (PL_statusvalue != EVMSERR) { \
2664 PL_statusvalue &= 0xFFFF; \
2665 if (MY_POSIX_EXIT) \
2666 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2667 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2668 } \
2669 else { \
2670 PL_statusvalue_vms = vaxc$errno; \
2671 } \
68dc0745 2672 } \
0968cdad
JM		 2673 else PL_statusvalue_vms = SS$_ABORT; \
2674 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM		 2675 } STMT_END
2676
2677 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
2678 * the NATIVE error status based on it. It does not assume that
fb38d079
JM		 2679 * the UNIX/POSIX exit codes have any relationship to errno, except
2680 * that 0 indicates a success. When in the default mode to comply
6ac6a52b
JM		 2681 * with the Perl VMS documentation, any other code sets the NATIVE
2682 * status to a failure code of SS$_ABORT.
fb38d079
JM		 2683 *
2684 * In the new POSIX EXIT mode, native status will be set so that the
2685 * actual exit code will can be retrieved by the calling program or
2686 * shell.
2687 *
2688 * If the exit code is not clearly a UNIX parent or child exit status,
2689 * it will be passed through as a VMS status.
7a7fd8e0
JM		 2690 */
2691
fb38d079 2692# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM		 2693 STMT_START { \
2694 I32 evalue = (I32)n; \
2695 PL_statusvalue = evalue; \
fb38d079
JM		 2696 if (evalue != -1) { \
2697 if (evalue <= 0xFF00) { \
2698 if (evalue > 0xFF) \
2699 evalue = (evalue >> child_offset_bits) & 0xFF; \
2700 if (evalue == 0) \
2701 PL_statusvalue_vms == SS$_NORMAL; \
2702 else \
2703 if (MY_POSIX_EXIT) \
2704 PL_statusvalue_vms = \
2705 (C_FAC_POSIX | (evalue << 3 ) | (evalue == 1)? \
52e64fc8 2706 (STS$K_ERROR | STS$M_INHIB_MSG) : 1); \
0968cdad 2707 else \
6ac6a52b 2708 PL_statusvalue_vms = SS$_ABORT; \
fb38d079
JM		 2709 } else { /* forgive them Perl, for they have sinned */ \
2710 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
2711 else PL_statusvalue_vms = vaxc$errno; \
2712 /* And obviously used a VMS status value instead of UNIX */ \
2713 PL_statusvalue = EVMSERR; \
2714 } \
7a7fd8e0
JM		 2715 } \
2716 else PL_statusvalue_vms = SS$_ABORT; \
2717 set_vaxc_errno(PL_statusvalue_vms); \
68dc0745 2718 } STMT_END
fb38d079 2719
6ac6a52b
JM		 2720 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
2721 * and sets the NATIVE error status based on it. This special case
2722 * is needed to maintain compatibility with past VMS behavior.
2723 *
2724 * In the default mode on VMS, this number is passed through as
2725 * both the NATIVE and UNIX status. Which makes it different
2726 * that the STATUS_UNIX_EXIT_SET.
2727 *
2728 * In the new POSIX EXIT mode, native status will be set so that the
2729 * actual exit code will can be retrieved by the calling program or
2730 * shell.
2731 *
2732 */
2733
2734# define STATUS_EXIT_SET(n) \
2735 STMT_START { \
2736 I32 evalue = (I32)n; \
2737 PL_statusvalue = evalue; \
2738 if (MY_POSIX_EXIT) \
2739 PL_statusvalue_vms = \
2740 (C_FAC_POSIX | (evalue << 3 ) | (evalue == 1)? \
52e64fc8 2741 (STS$K_ERROR | STS$M_INHIB_MSG) : 1); \
6ac6a52b
JM		 2742 else \
2743 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
2744 set_vaxc_errno(PL_statusvalue_vms); \
2745 } STMT_END
2746
fb38d079
JM		 2747
2748 /* This macro forces a success status */
7a7fd8e0
JM		 2749# define STATUS_ALL_SUCCESS \
2750 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM		 2751
2752 /* This macro forces a failure status */
7a7fd8e0
JM		 2753# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
2754 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
2755 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 2756
68dc0745 2757#else
e5218da5 2758# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 2759# if defined(WCOREDUMP)
37038d91 2760# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 2761 STMT_START { \
2762 PL_statusvalue_posix = (n); \
2763 if (PL_statusvalue_posix == -1) \
2764 PL_statusvalue = -1; \
2765 else { \
2766 PL_statusvalue = \
2767 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
2768 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
2769 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
2770 } \
2771 } STMT_END
2772# elif defined(WIFEXITED)
37038d91 2773# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 2774 STMT_START { \
2775 PL_statusvalue_posix = (n); \
2776 if (PL_statusvalue_posix == -1) \
2777 PL_statusvalue = -1; \
2778 else { \
2779 PL_statusvalue = \
2780 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
2781 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
2782 } \
2783 } STMT_END
2784# else
37038d91 2785# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 2786 STMT_START { \
2787 PL_statusvalue_posix = (n); \
2788 if (PL_statusvalue_posix == -1) \
2789 PL_statusvalue = -1; \
2790 else { \
2791 PL_statusvalue = \
2792 PL_statusvalue_posix & 0xFFFF; \
2793 } \
2794 } STMT_END
2795# endif
2796# define STATUS_UNIX_SET(n) \
68dc0745 2797 STMT_START { \
3280af22
NIS		 2798 PL_statusvalue = (n); \
2799 if (PL_statusvalue != -1) \
2800 PL_statusvalue &= 0xFFFF; \
68dc0745 2801 } STMT_END
7a7fd8e0 2802# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 2803# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 2804# define STATUS_CURRENT STATUS_UNIX
37038d91 2805# define STATUS_EXIT STATUS_UNIX
e5218da5
GA		 2806# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
2807# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745 2808#endif
2809
cc3604b1
GS		 2810/* flags in PL_exit_flags for nature of exit() */
2811#define PERL_EXIT_EXPECTED 0x01
31d77e54 2812#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
cc3604b1 2813
0b94c7bb 2814#ifndef MEMBER_TO_FPTR
a7cb1f99
GS		 2815# define MEMBER_TO_FPTR(name) name
2816#endif
2817
2818/* format to use for version numbers in file/directory names */
273cf8d1 2819/* XXX move to Configure? */
a7cb1f99 2820#ifndef PERL_FS_VER_FMT
273cf8d1 2821# define PERL_FS_VER_FMT "%d.%d.%d"
0b94c7bb
GS		 2822#endif
2823
45bc9206 2824/* This defines a way to flush all output buffers. This may be a
76549fef
JH		 2825 * performance issue, so we allow people to disable it. Also, if
2826 * we are using stdio, there are broken implementations of fflush(NULL)
2827 * out there, Solaris being the most prominent.
45bc9206
GS		 2828 */
2829#ifndef PERL_FLUSHALL_FOR_CHILD
76549fef 2830# if defined(USE_PERLIO) || defined(FFLUSH_NULL) || defined(USE_SFIO)
66fe083f 2831# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH		 2832# else
2833# ifdef FFLUSH_ALL
2834# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 2835# else
c5be433b 2836# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 2837# endif
66fe083f 2838# endif
45bc9206
GS		 2839#endif
2840
7766f137
GS		 2841#ifndef PERL_WAIT_FOR_CHILDREN
2842# define PERL_WAIT_FOR_CHILDREN NOOP
2843#endif
2844
ba869deb 2845/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS		 2846#ifndef PERL_SET_INTERP
2847# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
2848#endif
2849
2850#ifndef PERL_GET_INTERP
2851# define PERL_GET_INTERP (PL_curinterp)
2852#endif
2853
54aff467 2854#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 2855# ifdef MULTIPLICITY
ba869deb 2856# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 2857# endif
ba869deb
GS		 2858# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
2859#endif
2860
8896765a
RB		 2861/*
2862 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 2863 All that is required is that the perl source does not
8896765a
RB		 2864 use "%-p" or "%-<number>p" or "%<number>p" formats.
2865 These formats will still work in perl code.
2866 See comments in sv.c for futher details.
2867
2868 -DvdNUMBER=<number> can be used to redefine VDf
2869
2870 -DvdNUMBER=0 reverts VDf to "vd", as in perl5.8.7,
2871 which works properly but gives compiler warnings
2872
2873 Robin Barker 2005-07-14
0dbb1585 2874*/
8896765a
RB		 2875
2876#ifndef SVf_
63ce7bf0 2877# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS		 2878#endif
2879
8896765a 2880#ifndef SVf
104abab4 2881# define SVf "-p"
d2560b70
RB		 2882#endif
2883
014ead4b 2884#ifndef SVf32
8896765a 2885# define SVf32 SVf_(32)
014ead4b
RB		 2886#endif
2887
2888#ifndef SVf256
8896765a
RB		 2889# define SVf256 SVf_(256)
2890#endif
2891
2892#ifndef vdNUMBER
2893# define vdNUMBER 1
2894#endif
2895
2896#ifndef VDf
2897# if vdNUMBER
63ce7bf0 2898# define VDf STRINGIFY(vdNUMBER) "p"
8896765a
RB		 2899# else
2900# define VDf "vd"
2901# endif
014ead4b
RB		 2902#endif
2903
2904#ifndef UVf
2905# define UVf UVuf
d2560b70
RB		 2906#endif
2907
0dbb1585
AL		 2908#ifdef HASATTRIBUTE_FORMAT
2909# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
2910#endif
2911#ifdef HASATTRIBUTE_MALLOC
77785eea 2912# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 2913#endif
0dbb1585 2914#ifdef HASATTRIBUTE_NONNULL
abb2c242 2915# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 2916#endif
0dbb1585 2917#ifdef HASATTRIBUTE_NORETURN
abb2c242 2918# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 2919#endif
0dbb1585 2920#ifdef HASATTRIBUTE_PURE
abb2c242 2921# define __attribute__pure__ __attribute__((pure))
f22be1b8 2922#endif
0dbb1585
AL		 2923#ifdef HASATTRIBUTE_UNUSED
2924# define __attribute__unused__ __attribute__((unused))
2925#endif
2926#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 2927# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH		 2928#endif
2929
0dbb1585
AL		 2930/* If we haven't defined the attributes yet, define them to blank. */
2931#ifndef __attribute__format__
2932# define __attribute__format__(x,y,z)
2933#endif
f22be1b8 2934#ifndef __attribute__malloc__
abb2c242 2935# define __attribute__malloc__
f22be1b8
JH		 2936#endif
2937#ifndef __attribute__nonnull__
abb2c242 2938# define __attribute__nonnull__(a)
f22be1b8
JH		 2939#endif
2940#ifndef __attribute__noreturn__
abb2c242 2941# define __attribute__noreturn__
f22be1b8
JH		 2942#endif
2943#ifndef __attribute__pure__
abb2c242 2944# define __attribute__pure__
f22be1b8 2945#endif
0dbb1585
AL		 2946#ifndef __attribute__unused__
2947# define __attribute__unused__
2948#endif
f22be1b8 2949#ifndef __attribute__warn_unused_result__
abb2c242
JH		 2950# define __attribute__warn_unused_result__
2951#endif
2952
0dbb1585
AL		 2953/* For functions that are marked as __attribute__noreturn__, it's not
2954 appropriate to call return. In either case, include the lint directive.
2955 */
2956#ifdef HASATTRIBUTE_NORETURN
b37c2d43 2957# define NORETURN_FUNCTION_END /* NOTREACHED */
0dbb1585 2958#else
b37c2d43 2959# define NORETURN_FUNCTION_END /* NOTREACHED */ return 0
abb2c242
JH		 2960#endif
2961
635aebb7 2962#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL		 2963# define EXPECT(expr,val) __builtin_expect(expr,val)
2964#else
2965# define EXPECT(expr,val) (expr)
2966#endif
2967#define LIKELY(cond) EXPECT(cond,1)
2968#define UNLIKELY(cond) EXPECT(cond,0)
635aebb7
AL		 2969#ifdef HAS_BUILTIN_CHOOSE_EXPR
2970/* placeholder */
2971#endif
b37c2d43 2972
3fc1aec6 2973/* Some unistd.h's give a prototype for pause() even though
2974 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 2975 below to be rejected by the compiler. Sigh.
3fc1aec6 2976*/
2977#ifdef HAS_PAUSE
2978#define Pause pause
2979#else
2980#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 2981#endif
2982
2983#ifndef IOCPARM_LEN
2984# ifdef IOCPARM_MASK
61f1c44b 2985 /* on BSDish systems we're safe */
748a9306
LW		 2986# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
2987# else
61f1c44b 2988# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA		 2989 /* on Linux systems we're safe; except when we're not [perl #38223] */
2990# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 2991# else
748a9306 2992 /* otherwise guess at what's safe */
61f1c44b
JVD		 2993# define IOCPARM_LEN(x) 256
2994# endif
748a9306 2995# endif
a0d0e21e
LW		 2996#endif
2997
1761cee5 2998#if defined(__CYGWIN__)
521e0776
GS		 2999/* USEMYBINMODE
3000 * This symbol, if defined, indicates that the program should
16fe6d59 3001 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS		 3002 * that a file is in "binary" mode -- that is, that no translation
3003 * of bytes occurs on read or write operations.
3004 */
36894f0b 3005# define USEMYBINMODE /**/
77a40698 3006# include <io.h> /* for setmode() prototype */
16fe6d59 3007# define my_binmode(fp, iotype, mode) \
77a40698 3008 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6 3009#endif
3010
88d10794
JH		 3011#ifdef __CYGWIN__
3012void init_os_extras(void);
3013#endif
3014
cea2e8a9
GS		 3015#ifdef UNION_ANY_DEFINITION
3016UNION_ANY_DEFINITION;
3017#else
3018union any {
3019 void* any_ptr;
3020 I32 any_i32;
3021 IV any_iv;
3022 long any_long;
9febdf04 3023 bool any_bool;
c76ac1ee 3024 void (*any_dptr) (void*);
acfe0abc 3025 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS		 3026};
3027#endif
3028
acfe0abc 3029typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS		 3030
3031#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
3032#define FILTER_DATA(idx) (AvARRAY(PL_rsfp_filters)[idx])
3033#define FILTER_ISREADER(idx) (idx >= AvFILLp(PL_rsfp_filters))
3034
c5078cac
JH		 3035#if defined(_AIX) && !defined(_AIX43)
3036#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3037/* We cannot include <crypt.h> to get the struct crypt_data
3038 * because of setkey prototype problems when threading */
3039typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3040 /* From OSF, Not needed in AIX
3041 char C[28], D[28];
3042 */
3043 char E[48];
3044 char KS[16][48];
3045 char block[66];
3046 char iobuf[16];
3047} CRYPTD;
3048#endif /* threading */
3049#endif /* AIX */
3050
af8b425d 3051#if !defined(OS2) && !defined(MACOS_TRADITIONAL)
2c2d71f5
JH		 3052# include "iperlsys.h"
3053#endif
504f80c1 3054
d10dc2ae
JH		 3055/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3056 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3057 * defined by Configure, despite their names being similar to the
3058 * other defines like USE_ITHREADS. Configure in fact knows nothing
3059 * about the randomised hashes. Therefore to enable/disable the hash
3060 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3061#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3062# define USE_HASH_SEED
504f80c1
JH		 3063#endif
3064
378cc40b 3065#include "regexp.h"
79072805 3066#include "sv.h"
378cc40b 3067#include "util.h"
8d063cd8 3068#include "form.h"
79072805 3069#include "gv.h"
dd2155a4 3070#include "pad.h"
79072805 3071#include "cv.h"
abdd5c84 3072#include "opnames.h"
79072805
LW		 3073#include "op.h"
3074#include "cop.h"
3075#include "av.h"
3076#include "hv.h"
3077#include "mg.h"
3078#include "scope.h"
4438c4b7 3079#include "warnings.h"
a0ed51b3 3080#include "utf8.h"
8d063cd8 3081
7fae4e64
GS		 3082/* Current curly descriptor */
3083typedef struct curcur CURCUR;
3084struct curcur {
3085 int parenfloor; /* how far back to strip paren data */
3086 int cur; /* how many instances of scan we've matched */
3087 int min; /* the minimal number of scans to match */
3088 int max; /* the maximal number of scans to match */
3089 int minmod; /* whether to work our way up or down */
3090 regnode * scan; /* the thing to match */
3091 regnode * next; /* what has to match after it */
3092 char * lastloc; /* where we started matching this scan */
3093 CURCUR * oldcc; /* current curly before we started this one */
3094};
3095
3096typedef struct _sublex_info SUBLEXINFO;
3097struct _sublex_info {
3098 I32 super_state; /* lexer state to save */
3099 I32 sub_inwhat; /* "lex_inwhat" to use */
3100 OP *sub_op; /* "lex_op" to use */
0244c3a4
GS		 3101 char *super_bufptr; /* PL_bufptr that was */
3102 char *super_bufend; /* PL_bufend that was */
7fae4e64
GS		 3103};
3104
455ece5e 3105typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3106
2c2d71f5 3107struct scan_data_t; /* Used in S_* functions in regcomp.c */
653099ff 3108struct regnode_charclass_class; /* Used in S_* functions in regcomp.c */
76e3520e
GS		 3109
3110typedef I32 CHECKPOINT;
76e3520e 3111
6f51351d
NC		 3112/* Keep next first in this structure, because sv_free_arenas take
3113 advantage of this to share code between the pte arenas and the SV
3114 body arenas */
5f7fde29
GS		 3115struct ptr_tbl_ent {
3116 struct ptr_tbl_ent* next;
53c1dcc0 3117 const void* oldval;
5f7fde29 3118 void* newval;
d18c6117
GS		 3119};
3120
5f7fde29
GS		 3121struct ptr_tbl {
3122 struct ptr_tbl_ent** tbl_ary;
3123 UV tbl_max;
3124 UV tbl_items;
d18c6117
GS		 3125};
3126
450a55e4 3127#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW		 3128# define I286
3129#endif
3130
fe14fcc3
LW		 3131#if defined(htonl) && !defined(HAS_HTONL)
3132#define HAS_HTONL
ae986130 3133#endif
fe14fcc3
LW		 3134#if defined(htons) && !defined(HAS_HTONS)
3135#define HAS_HTONS
ae986130 3136#endif
fe14fcc3
LW		 3137#if defined(ntohl) && !defined(HAS_NTOHL)
3138#define HAS_NTOHL
ae986130 3139#endif
fe14fcc3
LW		 3140#if defined(ntohs) && !defined(HAS_NTOHS)
3141#define HAS_NTOHS
ae986130 3142#endif
fe14fcc3 3143#ifndef HAS_HTONL
d9d8d8de 3144#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW		 3145#define HAS_HTONS
3146#define HAS_HTONL
3147#define HAS_NTOHS
3148#define HAS_NTOHL
a687059c
LW		 3149#define MYSWAP
3150#define htons my_swap
3151#define htonl my_htonl
3152#define ntohs my_swap
3153#define ntohl my_ntohl
3154#endif
3155#else
d9d8d8de 3156#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW		 3157#undef HAS_HTONS
3158#undef HAS_HTONL
3159#undef HAS_NTOHS
3160#undef HAS_NTOHL
a687059c
LW		 3161#endif
3162#endif
3163
988174c1
LW		 3164/*
3165 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3166 * -DWS
3167 */
3168#if BYTEORDER != 0x1234
3169# define HAS_VTOHL
3170# define HAS_VTOHS
3171# define HAS_HTOVL
3172# define HAS_HTOVS
c67712b2 3173# if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW		 3174# define vtohl(x) ((((x)&0xFF)<<24) \
3175 +(((x)>>24)&0xFF) \
3176 +(((x)&0x0000FF00)<<8) \
3177 +(((x)&0x00FF0000)>>8) )
3178# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3179# define htovl(x) vtohl(x)
3180# define htovs(x) vtohs(x)
3181# endif
3182 /* otherwise default to functions in util.c */
2a8c3029 3183#ifndef htovs
c623ac67
GS		 3184short htovs(short n);
3185short vtohs(short n);
3186long htovl(long n);
3187long vtohl(long n);
988174c1 3188#endif
2a8c3029 3189#endif
988174c1 3190
3bb7c1b4
JH		 3191/* *MAX Plus 1. A floating point value.
3192 Hopefully expressed in a way that dodgy floating point can't mess up.
3193 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3194 is added to it
3195 May find that some broken compiler will want the value cast to I32.
3196 [after the shift, as signed >> may not be as secure as unsigned >>]
3197*/
3198#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3199#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3200/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3201 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3202 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3203*/
3204#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3205
3bb7c1b4
JH		 3206#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3207#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3208#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3209
3210/* This may look like unnecessary jumping through hoops, but converting
3211 out of range floating point values to integers *is* undefined behaviour,
3212 and it is starting to bite.
3213*/
3214#ifndef CAST_INLINE
65202027 3215#define I_32(what) (cast_i32((NV)(what)))
3bb7c1b4 3216#define U_32(what) (cast_ulong((NV)(what)))
65202027
DS		 3217#define I_V(what) (cast_iv((NV)(what)))
3218#define U_V(what) (cast_uv((NV)(what)))
3bb7c1b4
JH		 3219#else
3220#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3221 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3222 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3223#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3224 : ((n) < U32_MAX_P1 ? (U32) (n) \
3225 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3226#define I_V(n) ((n) < IV_MAX_P1 ? ((n) < IV_MIN ? IV_MIN : (IV) (n)) \
3227 : ((n) < UV_MAX_P1 ? (IV)(UV) (n) \
3228 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3229#define U_V(n) ((n) < 0.0 ? ((n) < IV_MIN ? (UV) IV_MIN : (UV)(IV) (n)) \
3230 : ((n) < UV_MAX_P1 ? (UV) (n) \
3231 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3232#endif
3233
3234#define U_S(what) ((U16)U_32(what))
3235#define U_I(what) ((unsigned int)U_32(what))
3236#define U_L(what) U_32(what)
ed6116ce 3237
2d4389e4
JH		 3238/* These do not care about the fractional part, only about the range. */
3239#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
24db6c0d 3240#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2d4389e4 3241
25da4f38
IZ		 3242/* Used with UV/IV arguments: */
3243 /* XXXX: need to speed it up */
3244#define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3245#define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3246
352d5a3a
LW		 3247#ifndef MAXSYSFD
3248# define MAXSYSFD 2
3249#endif
ee0007ab 3250
79072805 3251#ifndef __cplusplus
27da23d5 3252#if !(defined(UNDER_CE) || defined(SYMBIAN))
20ce7b12
GS		 3253Uid_t getuid (void);
3254Uid_t geteuid (void);
3255Gid_t getgid (void);
3256Gid_t getegid (void);
79072805 3257#endif
e1caacb4 3258#endif
8d063cd8 3259
0c30d9ec 3260#ifndef Perl_debug_log
bf49b057
GS		 3261# define Perl_debug_log PerlIO_stderr()
3262#endif
3263
3264#ifndef Perl_error_log
3265# define Perl_error_log (PL_stderrgv \
6b78add2 3266 && isGV(PL_stderrgv) \
01bb7c6d 3267 && GvIOp(PL_stderrgv) \
42de951c 3268 && IoOFP(GvIOp(PL_stderrgv)) \
bf49b057
GS		 3269 ? IoOFP(GvIOp(PL_stderrgv)) \
3270 : PerlIO_stderr())
0c30d9ec 3271#endif
3967c732 3272
aea4f609
DM		 3273
3274#define DEBUG_p_FLAG 0x00000001 /* 1 */
3275#define DEBUG_s_FLAG 0x00000002 /* 2 */
3276#define DEBUG_l_FLAG 0x00000004 /* 4 */
3277#define DEBUG_t_FLAG 0x00000008 /* 8 */
3278#define DEBUG_o_FLAG 0x00000010 /* 16 */
3279#define DEBUG_c_FLAG 0x00000020 /* 32 */
3280#define DEBUG_P_FLAG 0x00000040 /* 64 */
3281#define DEBUG_m_FLAG 0x00000080 /* 128 */
3282#define DEBUG_f_FLAG 0x00000100 /* 256 */
3283#define DEBUG_r_FLAG 0x00000200 /* 512 */
3284#define DEBUG_x_FLAG 0x00000400 /* 1024 */
3285#define DEBUG_u_FLAG 0x00000800 /* 2048 */
a3c98653 3286 /* spare */
aea4f609
DM		 3287#define DEBUG_H_FLAG 0x00002000 /* 8192 */
3288#define DEBUG_X_FLAG 0x00004000 /* 16384 */
3289#define DEBUG_D_FLAG 0x00008000 /* 32768 */
3290#define DEBUG_S_FLAG 0x00010000 /* 65536 */
3291#define DEBUG_T_FLAG 0x00020000 /* 131072 */
04932ac8 3292#define DEBUG_R_FLAG 0x00040000 /* 262144 */
1045810a 3293#define DEBUG_J_FLAG 0x00080000 /* 524288 */
d6721266 3294#define DEBUG_v_FLAG 0x00100000 /*1048576 */
46187eeb 3295#define DEBUG_C_FLAG 0x00200000 /*2097152 */
ecae49c0 3296#define DEBUG_A_FLAG 0x00400000 /*4194304 */
a3c98653 3297#define DEBUG_q_FLAG 0x00800000 /*8388608 */
ecae49c0 3298#define DEBUG_MASK 0x00FFEFFF /* mask of all the standard flags */
aea4f609
DM		 3299
3300#define DEBUG_DB_RECURSE_FLAG 0x40000000
1045810a
IZ		 3301#define DEBUG_TOP_FLAG 0x80000000 /* XXX what's this for ??? Signal
3302 that something was done? */
aea4f609 3303
bd16a5f0
IZ		 3304# define DEBUG_p_TEST_ (PL_debug & DEBUG_p_FLAG)
3305# define DEBUG_s_TEST_ (PL_debug & DEBUG_s_FLAG)
3306# define DEBUG_l_TEST_ (PL_debug & DEBUG_l_FLAG)
3307# define DEBUG_t_TEST_ (PL_debug & DEBUG_t_FLAG)
3308# define DEBUG_o_TEST_ (PL_debug & DEBUG_o_FLAG)
3309# define DEBUG_c_TEST_ (PL_debug & DEBUG_c_FLAG)
3310# define DEBUG_P_TEST_ (PL_debug & DEBUG_P_FLAG)
3311# define DEBUG_m_TEST_ (PL_debug & DEBUG_m_FLAG)
3312# define DEBUG_f_TEST_ (PL_debug & DEBUG_f_FLAG)
3313# define DEBUG_r_TEST_ (PL_debug & DEBUG_r_FLAG)
3314# define DEBUG_x_TEST_ (PL_debug & DEBUG_x_FLAG)
3315# define DEBUG_u_TEST_ (PL_debug & DEBUG_u_FLAG)
bd16a5f0
IZ		 3316# define DEBUG_H_TEST_ (PL_debug & DEBUG_H_FLAG)
3317# define DEBUG_X_TEST_ (PL_debug & DEBUG_X_FLAG)
3318# define DEBUG_D_TEST_ (PL_debug & DEBUG_D_FLAG)
3319# define DEBUG_S_TEST_ (PL_debug & DEBUG_S_FLAG)
3320# define DEBUG_T_TEST_ (PL_debug & DEBUG_T_FLAG)
3321# define DEBUG_R_TEST_ (PL_debug & DEBUG_R_FLAG)
1045810a 3322# define DEBUG_J_TEST_ (PL_debug & DEBUG_J_FLAG)
d6721266 3323# define DEBUG_v_TEST_ (PL_debug & DEBUG_v_FLAG)
46187eeb 3324# define DEBUG_C_TEST_ (PL_debug & DEBUG_C_FLAG)
ecae49c0
NC		 3325# define DEBUG_A_TEST_ (PL_debug & DEBUG_A_FLAG)
3326# define DEBUG_q_TEST_ (PL_debug & DEBUG_q_FLAG)
dd2155a4 3327# define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
bd16a5f0 3328
3967c732 3329#ifdef DEBUGGING
aea4f609 3330
bd16a5f0
IZ		 3331# define DEBUG_p_TEST DEBUG_p_TEST_
3332# define DEBUG_s_TEST DEBUG_s_TEST_
3333# define DEBUG_l_TEST DEBUG_l_TEST_
3334# define DEBUG_t_TEST DEBUG_t_TEST_
3335# define DEBUG_o_TEST DEBUG_o_TEST_
3336# define DEBUG_c_TEST DEBUG_c_TEST_
3337# define DEBUG_P_TEST DEBUG_P_TEST_
3338# define DEBUG_m_TEST DEBUG_m_TEST_
3339# define DEBUG_f_TEST DEBUG_f_TEST_
3340# define DEBUG_r_TEST DEBUG_r_TEST_
3341# define DEBUG_x_TEST DEBUG_x_TEST_
3342# define DEBUG_u_TEST DEBUG_u_TEST_
bd16a5f0
IZ		 3343# define DEBUG_H_TEST DEBUG_H_TEST_
3344# define DEBUG_X_TEST DEBUG_X_TEST_
dd2155a4 3345# define DEBUG_Xv_TEST DEBUG_Xv_TEST_
bd16a5f0
IZ		 3346# define DEBUG_D_TEST DEBUG_D_TEST_
3347# define DEBUG_S_TEST DEBUG_S_TEST_
3348# define DEBUG_T_TEST DEBUG_T_TEST_
3349# define DEBUG_R_TEST DEBUG_R_TEST_
1045810a 3350# define DEBUG_J_TEST DEBUG_J_TEST_
d6721266 3351# define DEBUG_v_TEST DEBUG_v_TEST_
46187eeb 3352# define DEBUG_C_TEST DEBUG_C_TEST_
ecae49c0 3353# define DEBUG_A_TEST DEBUG_A_TEST_
a3c98653 3354# define DEBUG_q_TEST DEBUG_q_TEST_
aea4f609 3355
488b0c7a
JH		 3356# define PERL_DEB(a) a
3357# define PERL_DEBUG(a) if (PL_debug) a
aea4f609
DM		 3358# define DEBUG_p(a) if (DEBUG_p_TEST) a
3359# define DEBUG_s(a) if (DEBUG_s_TEST) a
3360# define DEBUG_l(a) if (DEBUG_l_TEST) a
3361# define DEBUG_t(a) if (DEBUG_t_TEST) a
3362# define DEBUG_o(a) if (DEBUG_o_TEST) a
3363# define DEBUG_c(a) if (DEBUG_c_TEST) a
3364# define DEBUG_P(a) if (DEBUG_P_TEST) a
3365
969058bb
VK		 3366 /* Temporarily turn off memory debugging in case the a
3367 * does memory allocation, either directly or indirectly. */
acfe0abc 3368# define DEBUG_m(a) \
0b250b9e 3369 STMT_START { \
aea4f609 3370 if (PERL_GET_INTERP) { dTHX; if (DEBUG_m_TEST) {PL_debug&=~DEBUG_m_FLAG; a; PL_debug|=DEBUG_m_FLAG;} } \
0b250b9e 3371 } STMT_END
aea4f609 3372
5f80b19c
AMS		 3373# define DEBUG__(t, a) \
3374 STMT_START { \
3375 if (t) STMT_START {a;} STMT_END; \
3376 } STMT_END
3377
3378# define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
3379# define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
3380# define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
3381# define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
5f80b19c
AMS		 3382# define DEBUG_H(a) DEBUG__(DEBUG_H_TEST, a)
3383# define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
dd2155a4 3384# define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
5f80b19c 3385# define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
aea4f609 3386
3db8f154 3387# define DEBUG_S(a)
aea4f609 3388
5f80b19c
AMS		 3389# define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
3390# define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
d6721266 3391# define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
46187eeb 3392# define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
ecae49c0
NC		 3393# define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
3394# define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
aea4f609
DM		 3395
3396#else /* DEBUGGING */
3397
3398# define DEBUG_p_TEST (0)
3399# define DEBUG_s_TEST (0)
3400# define DEBUG_l_TEST (0)
3401# define DEBUG_t_TEST (0)
3402# define DEBUG_o_TEST (0)
3403# define DEBUG_c_TEST (0)
3404# define DEBUG_P_TEST (0)
3405# define DEBUG_m_TEST (0)
3406# define DEBUG_f_TEST (0)
3407# define DEBUG_r_TEST (0)
3408# define DEBUG_x_TEST (0)
3409# define DEBUG_u_TEST (0)
aea4f609
DM		 3410# define DEBUG_H_TEST (0)
3411# define DEBUG_X_TEST (0)
dd2155a4 3412# define DEBUG_Xv_TEST (0)
aea4f609
DM		 3413# define DEBUG_D_TEST (0)
3414# define DEBUG_S_TEST (0)
3415# define DEBUG_T_TEST (0)
04932ac8 3416# define DEBUG_R_TEST (0)
1045810a 3417# define DEBUG_J_TEST (0)
d6721266 3418# define DEBUG_v_TEST (0)
46187eeb 3419# define DEBUG_C_TEST (0)
ecae49c0
NC		 3420# define DEBUG_A_TEST (0)
3421# define DEBUG_q_TEST (0)
aea4f609 3422
488b0c7a
JH		 3423# define PERL_DEB(a)
3424# define PERL_DEBUG(a)
aea4f609
DM		 3425# define DEBUG_p(a)
3426# define DEBUG_s(a)
3427# define DEBUG_l(a)
3428# define DEBUG_t(a)
3429# define DEBUG_o(a)
3430# define DEBUG_c(a)
3431# define DEBUG_P(a)
3432# define DEBUG_m(a)
3433# define DEBUG_f(a)
3434# define DEBUG_r(a)
3435# define DEBUG_x(a)
3436# define DEBUG_u(a)
aea4f609
DM		 3437# define DEBUG_H(a)
3438# define DEBUG_X(a)
dd2155a4 3439# define DEBUG_Xv(a)
aea4f609
DM		 3440# define DEBUG_D(a)
3441# define DEBUG_S(a)
3442# define DEBUG_T(a)
04932ac8 3443# define DEBUG_R(a)
d6721266 3444# define DEBUG_v(a)
46187eeb 3445# define DEBUG_C(a)
ecae49c0
NC		 3446# define DEBUG_A(a)
3447# define DEBUG_q(a)
aea4f609
DM		 3448#endif /* DEBUGGING */
3449
3450
b4ab917c
DM		 3451#define DEBUG_SCOPE(where) \
3452 DEBUG_l(WITH_THR(Perl_deb(aTHX_ "%s scope %ld at %s:%d\n", \
44f8325f 3453 where, (long)PL_scopestack_ix, __FILE__, __LINE__)));
b4ab917c
DM		 3454
3455
3456
3457
d1be9408 3458/* These constants should be used in preference to raw characters
14befaf4
DM		 3459 * when using magic. Note that some perl guts still assume
3460 * certain character properties of these constants, namely that
3461 * isUPPER() and toLOWER() may do useful mappings.
3462 *
3463 * Update the magic_names table in dump.c when adding/amending these
3464 */
3465
3466#define PERL_MAGIC_sv '\0' /* Special scalar variable */
3467#define PERL_MAGIC_overload 'A' /* %OVERLOAD hash */
3468#define PERL_MAGIC_overload_elem 'a' /* %OVERLOAD hash element */
3469#define PERL_MAGIC_overload_table 'c' /* Holds overload table (AMT) on stash */
3470#define PERL_MAGIC_bm 'B' /* Boyer-Moore (fast string search) */
3471#define PERL_MAGIC_regdata 'D' /* Regex match position data
3472 (@+ and @- vars) */
3473#define PERL_MAGIC_regdatum 'd' /* Regex match position data element */
3474#define PERL_MAGIC_env 'E' /* %ENV hash */
3475#define PERL_MAGIC_envelem 'e' /* %ENV hash element */
3476#define PERL_MAGIC_fm 'f' /* Formline ('compiled' format) */
3477#define PERL_MAGIC_regex_global 'g' /* m//g target / study()ed string */
3478#define PERL_MAGIC_isa 'I' /* @ISA array */
3479#define PERL_MAGIC_isaelem 'i' /* @ISA array element */
3480#define PERL_MAGIC_nkeys 'k' /* scalar(keys()) lvalue */
3481#define PERL_MAGIC_dbfile 'L' /* Debugger %_<filename */
3482#define PERL_MAGIC_dbline 'l' /* Debugger %_<filename element */
68795e93
NIS		 3483#define PERL_MAGIC_mutex 'm' /* for lock op */
3484#define PERL_MAGIC_shared 'N' /* Shared between threads */
3485#define PERL_MAGIC_shared_scalar 'n' /* Shared between threads */
14befaf4
DM		 3486#define PERL_MAGIC_collxfrm 'o' /* Locale transformation */
3487#define PERL_MAGIC_tied 'P' /* Tied array or hash */
3488#define PERL_MAGIC_tiedelem 'p' /* Tied array or hash element */
3489#define PERL_MAGIC_tiedscalar 'q' /* Tied scalar or handle */
3490#define PERL_MAGIC_qr 'r' /* precompiled qr// regex */
3491#define PERL_MAGIC_sig 'S' /* %SIG hash */
3492#define PERL_MAGIC_sigelem 's' /* %SIG hash element */
3493#define PERL_MAGIC_taint 't' /* Taintedness */
3494#define PERL_MAGIC_uvar 'U' /* Available for use by extensions */
68795e93 3495#define PERL_MAGIC_uvar_elem 'u' /* Reserved for use by extensions */
14befaf4 3496#define PERL_MAGIC_vec 'v' /* vec() lvalue */
92f0c265 3497#define PERL_MAGIC_vstring 'V' /* SV was vstring literal */
7e8c5dac 3498#define PERL_MAGIC_utf8 'w' /* Cached UTF-8 information */
14befaf4
DM		 3499#define PERL_MAGIC_substr 'x' /* substr() lvalue */
3500#define PERL_MAGIC_defelem 'y' /* Shadow "foreach" iterator variable /
3501 smart parameter vivification */
14befaf4
DM		 3502#define PERL_MAGIC_arylen '#' /* Array length ($#ary) */
3503#define PERL_MAGIC_pos '.' /* pos() lvalue */
68795e93 3504#define PERL_MAGIC_backref '<' /* for weak ref data */
8d2f4536 3505#define PERL_MAGIC_symtab ':' /* extra data for symbol tables */
ca732855 3506#define PERL_MAGIC_rhash '%' /* extra data for restricted hashes */
a3874608 3507#define PERL_MAGIC_arylen_p '@' /* to move arylen out of XPVAV */
14befaf4
DM		 3508#define PERL_MAGIC_ext '~' /* Available for use by extensions */
3509
3510
a6e633de 3511#ifndef assert /* <assert.h> might have been included somehow */
2b057284
NC		 3512#define assert(what) PERL_DEB( \
3513 ((what) ? ((void) 0) : \
67eb4d30 3514 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
60b9f5a7 3515 "\", line %d", STRINGIFY(what), __LINE__), \
2b057284 3516 (void) 0)))
a446a88f 3517#endif
8d063cd8 3518
450a55e4 3519struct ufuncs {
24f81a43
DM		 3520 I32 (*uf_val)(pTHX_ IV, SV*);
3521 I32 (*uf_set)(pTHX_ IV, SV*);
a0d0e21e 3522 IV uf_index;
450a55e4
LW		 3523};
3524
14befaf4 3525/* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
24f81a43
DM		 3526 * XS code wanting to be backward compatible can do something
3527 * like the following:
c745e42c 3528
24f81a43 3529#ifndef PERL_MG_UFUNC
24f81a43
DM		 3530#define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
3531#endif
3532
3533static PERL_MG_UFUNC(foo_get, index, val)
3534{
3535 sv_setsv(val, ...);
3536 return TRUE;
3537}
3538
3539-- Doug MacEachern
3540
3541*/
3542
fc9c74e6 3543#ifndef PERL_MG_UFUNC
24f81a43 3544#define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
fc9c74e6 3545#endif
24f81a43 3546
fe14fcc3 3547/* Fix these up for __STDC__ */
68dc0745 3548#ifndef DONT_DECLARE_STD
20ce7b12 3549char *mktemp (char*);
37bd1396 3550#ifndef atof
20ce7b12 3551double atof (const char*);
a0d0e21e 3552#endif
37bd1396 3553#endif
79072805 3554
352d5a3a 3555#ifndef STANDARD_C
fe14fcc3 3556/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 3557Time_t time();
8d063cd8 3558struct tm *gmtime(), *localtime();
092bebab 3559#if defined(OEMVS) || defined(__OPEN_VM)
9d116dd7
JH		 3560char *(strchr)(), *(strrchr)();
3561char *(strcpy)(), *(strcat)();
3562#else
93a17b20 3563char *strchr(), *strrchr();
378cc40b 3564char *strcpy(), *strcat();
9d116dd7 3565#endif
352d5a3a 3566#endif /* ! STANDARD_C */
8d063cd8 3567
79072805
LW		 3568
3569#ifdef I_MATH
3570# include <math.h>
3571#else
32f822de 3572START_EXTERN_C
20ce7b12
GS		 3573 double exp (double);
3574 double log (double);
3575 double log10 (double);
3576 double sqrt (double);
3577 double frexp (double,int*);
3578 double ldexp (double,int);
3579 double modf (double,double*);
3580 double sin (double);
3581 double cos (double);
3582 double atan2 (double,double);
3583 double pow (double,double);
32f822de 3584END_EXTERN_C
79072805
LW		 3585#endif
3586
aa8b85de
JH		 3587#if !defined(NV_INF) && defined(USE_LONG_DOUBLE) && defined(LDBL_INFINITY)
3588# define NV_INF LDBL_INFINITY
3589#endif
3590#if !defined(NV_INF) && defined(DBL_INFINITY)
3591# define NV_INF (NV)DBL_INFINITY
3592#endif
3593#if !defined(NV_INF) && defined(INFINITY)
3594# define NV_INF (NV)INFINITY
3595#endif
3596#if !defined(NV_INF) && defined(INF)
3597# define NV_INF (NV)INF
3598#endif
3599#if !defined(NV_INF) && defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
3600# define NV_INF (NV)HUGE_VALL
3601#endif
3602#if !defined(NV_INF) && defined(HUGE_VAL)
3603# define NV_INF (NV)HUGE_VAL
3604#endif
3605
3606#if !defined(NV_NAN) && defined(USE_LONG_DOUBLE)
3607# if !defined(NV_NAN) && defined(LDBL_NAN)
3608# define NV_NAN LDBL_NAN
3609# endif
3610# if !defined(NV_NAN) && defined(LDBL_QNAN)
3611# define NV_NAN LDBL_QNAN
3612# endif
3613# if !defined(NV_NAN) && defined(LDBL_SNAN)
3614# define NV_NAN LDBL_SNAN
3615# endif
3616#endif
3617#if !defined(NV_NAN) && defined(DBL_NAN)
3618# define NV_NAN (NV)DBL_NAN
3619#endif
3620#if !defined(NV_NAN) && defined(DBL_QNAN)
3621# define NV_NAN (NV)DBL_QNAN
3622#endif
3623#if !defined(NV_NAN) && defined(DBL_SNAN)
3624# define NV_NAN (NV)DBL_SNAN
3625#endif
3626#if !defined(NV_NAN) && defined(QNAN)
3627# define NV_NAN (NV)QNAN
3628#endif
3629#if !defined(NV_NAN) && defined(SNAN)
3630# define NV_NAN (NV)SNAN
3631#endif
3632#if !defined(NV_NAN) && defined(NAN)
3633# define NV_NAN (NV)NAN
3634#endif
3635
a0d0e21e 3636#ifndef __cplusplus
8f1f23e8 3637# if defined(NeXT) || defined(__NeXT__) /* or whatever catches all NeXTs */
3fc1aec6 3638char *crypt (); /* Maybe more hosts will need the unprototyped version */
26618a56 3639# else
fd8cd3a3 3640# if !defined(WIN32) && !defined(VMS)
10bc17b6 3641#ifndef crypt
20ce7b12 3642char *crypt (const char*, const char*);
10bc17b6 3643#endif
5014db98 3644# endif /* !WIN32 */
8f1f23e8 3645# endif /* !NeXT && !__NeXT__ */
26618a56
GS		 3646# ifndef DONT_DECLARE_STD
3647# ifndef getenv
20ce7b12 3648char *getenv (const char*);
26618a56 3649# endif /* !getenv */
28ca6303 3650# if !defined(HAS_LSEEK_PROTO) && !defined(EPOC) && !defined(__hpux)
0fc67700 3651# ifdef _FILE_OFFSET_BITS
28ca6303 3652# if _FILE_OFFSET_BITS == 64
20ce7b12 3653Off_t lseek (int,Off_t,int);
0fc67700
JH		 3654# endif
3655# endif
bf0c440f 3656# endif
26618a56 3657# endif /* !DONT_DECLARE_STD */
10bc17b6 3658#ifndef getlogin
20ce7b12 3659char *getlogin (void);
10bc17b6 3660#endif
26618a56 3661#endif /* !__cplusplus */
79072805 3662
7a7fd8e0
JM		 3663/* Fixme on VMS. This needs to be a run-time, not build time options */
3664/* Also rename() is affected by this */
16d20bd9 3665#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 3666#define UNLINK unlnk
083639a9 3667I32 unlnk (pTHX_ const char*);
8d063cd8 3668#else
80252599 3669#define UNLINK PerlLIO_unlink
8d063cd8 3670#endif
a687059c 3671
fa0a29af
JH		 3672/* some versions of glibc are missing the setresuid() proto */
3673#if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
640374d0
JH		 3674int setresuid(uid_t ruid, uid_t euid, uid_t suid);
3675#endif
fa0a29af
JH		 3676/* some versions of glibc are missing the setresgid() proto */
3677#if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
640374d0
JH		 3678int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
3679#endif
3680
fe14fcc3 3681#ifndef HAS_SETREUID
85e6fe83
LW		 3682# ifdef HAS_SETRESUID
3683# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
3684# define HAS_SETREUID
3685# endif
a687059c 3686#endif
fe14fcc3 3687#ifndef HAS_SETREGID
85e6fe83
LW		 3688# ifdef HAS_SETRESGID
3689# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
3690# define HAS_SETREGID
3691# endif
a687059c 3692#endif
ee0007ab 3693
d543acb6 3694/* Sighandler_t defined in iperlsys.h */
ff68c719 3695
3696#ifdef HAS_SIGACTION
3697typedef struct sigaction Sigsave_t;
3698#else
3699typedef Sighandler_t Sigsave_t;
3700#endif
3701
ee0007ab
LW		 3702#define SCAN_DEF 0
3703#define SCAN_TR 1
3704#define SCAN_REPL 2
79072805
LW		 3705
3706#ifdef DEBUGGING
4633a7c4 3707# ifndef register
a0d0e21e
LW		 3708# define register
3709# endif
cea2e8a9 3710# define RUNOPS_DEFAULT Perl_runops_debug
79072805 3711#else
cea2e8a9 3712# define RUNOPS_DEFAULT Perl_runops_standard
79072805
LW		 3713#endif
3714
18f739ee 3715#ifdef MYMALLOC
772fe5b3 3716# ifdef MUTEX_INIT_CALLS_MALLOC
3541dd58
HM		 3717# define MALLOC_INIT \
3718 STMT_START { \
3719 PL_malloc_mutex = NULL; \
3720 MUTEX_INIT(&PL_malloc_mutex); \
3721 } STMT_END
3722# define MALLOC_TERM \
3723 STMT_START { \
3724 perl_mutex tmp = PL_malloc_mutex; \
3725 PL_malloc_mutex = NULL; \
3726 MUTEX_DESTROY(&tmp); \
3727 } STMT_END
3728# else
3729# define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
3730# define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
3731# endif
18f739ee
IZ		 3732#else
3733# define MALLOC_INIT
3734# define MALLOC_TERM
3735#endif
3736
cd1541b2 3737#if defined(PERL_IMPLICIT_CONTEXT)
7cb608b5
NC		 3738
3739struct perl_memory_debug_header;
cd1541b2
NC		 3740struct perl_memory_debug_header {
3741 tTHX interpreter;
3742# ifdef PERL_POISON
3743 MEM_SIZE size;
cd1541b2 3744# endif
7cb608b5
NC		 3745 struct perl_memory_debug_header *prev;
3746 struct perl_memory_debug_header *next;
cd1541b2
NC		 3747};
3748
3749# define sTHX (sizeof(struct perl_memory_debug_header) + \
3750 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
3751 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
3752
3753#endif
3754
7cb608b5
NC		 3755#ifdef PERL_TRACK_MEMPOOL
3756# define INIT_TRACK_MEMPOOL(header, interp) \
3757 STMT_START { \
3758 (header).interpreter = (interp); \
3759 (header).prev = (header).next = &(header); \
3760 } STMT_END
3761# else
3762# define INIT_TRACK_MEMPOOL(header, interp)
3763#endif
3764
b6d9d515 3765
0cb96387 3766typedef int (CPERLscope(*runops_proc_t)) (pTHX);
68795e93 3767typedef void (CPERLscope(*share_proc_t)) (pTHX_ SV *sv);
62375a60 3768typedef int (CPERLscope(*thrhook_proc_t)) (pTHX);
0cb96387 3769typedef OP* (CPERLscope(*PPADDR_t)[]) (pTHX);
22c35a8c 3770
940cb80d 3771/* _ (for $_) must be first in the following list (DEFSV requires it) */
54b9620d 3772#define THREADSV_NAMES "_123456789&`'+/.,\\\";^-%=|~:\001\005!@"
a863c7d1 3773
8f1f23e8
W		 3774/* NeXT has problems with crt0.o globals */
3775#if defined(__DYNAMIC__) && \
6239f2da 3776 (defined(NeXT) || defined(__NeXT__) || defined(PERL_DARWIN))
8f1f23e8
W		 3777# if defined(NeXT) || defined(__NeXT)
3778# include <mach-o/dyld.h>
3779# define environ (*environ_pointer)
0c30d9ec 3780EXT char *** environ_pointer;
8f1f23e8 3781# else
6239f2da 3782# if defined(PERL_DARWIN) && defined(PERL_CORE)
8f1f23e8
W		 3783# include <crt_externs.h> /* for the env array */
3784# define environ (*_NSGetEnviron())
3785# endif
0c30d9ec 3786# endif
8f1f23e8
W		 3787#else
3788 /* VMS and some other platforms don't use the environ array */
13b6e58c 3789# ifdef USE_ENVIRON_ARRAY
a6c40364
GS		 3790# if !defined(DONT_DECLARE_STD) || \
3791 (defined(__svr4__) && defined(__GNUC__) && defined(sun)) || \
3792 defined(__sgi) || \
d460ef45 3793 defined(__DGUX)
8f1f23e8 3794extern char ** environ; /* environment variables supplied via exec */
a6c40364 3795# endif
8f1f23e8
W		 3796# endif
3797#endif
79072805 3798
73c4f7a1
GS		 3799START_EXTERN_C
3800
79072805 3801/* handy constants */
22c35a8c 3802EXTCONST char PL_warn_uninit[]
29489e7c 3803 INIT("Use of uninitialized value%s%s%s");
22c35a8c 3804EXTCONST char PL_warn_nosemi[]
463ee0b2 3805 INIT("Semicolon seems to be missing");
22c35a8c 3806EXTCONST char PL_warn_reserved[]
463ee0b2 3807 INIT("Unquoted string \"%s\" may clash with future reserved word");
22c35a8c 3808EXTCONST char PL_warn_nl[]
93a17b20 3809 INIT("Unsuccessful %s on filename containing newline");
22c35a8c 3810EXTCONST char PL_no_wrongref[]
a0d0e21e 3811 INIT("Can't use %s ref as %s ref");
22c35a8c 3812EXTCONST char PL_no_symref[]
748a9306 3813 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
7a5fd60d 3814EXTCONST char PL_no_symref_sv[]
014ead4b 3815 INIT("Can't use string (\"%" SVf32 "\") as %s ref while \"strict refs\" in use");
22c35a8c 3816EXTCONST char PL_no_usym[]
8990e307 3817 INIT("Can't use an undefined value as %s reference");
22c35a8c 3818EXTCONST char PL_no_aelem[]
93a17b20