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[perl5.git] / perl.h
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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
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6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
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37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
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40#endif
41
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42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
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45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
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51# define MULTIPLICITY
52# endif
53#endif
54
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55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
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61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
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67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
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73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
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79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
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86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
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92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
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94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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103# define USE_REENTRANT_API
104#endif
105
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106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
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108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
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113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
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126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
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138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
143# ifndef PERLIO_FUNCS_CONST
144# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
145# endif
146# else
147# define PERL_GET_VARS() PL_VarsPtr
148# endif
149# endif
150#endif
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
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161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
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172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
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181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
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184# define pTHX_5 6
185# define pTHX_6 7
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186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
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190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
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195#endif
196
76e3520e 197#define STATIC static
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198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
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209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
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224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
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230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
16c91539 234 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
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280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
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289
290
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291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
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297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
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308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
34659ad4 312# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
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319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
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321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
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330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
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342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
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366 *
367 * But sometimes you just want to ignore the return value, e.g. on
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368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
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371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
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375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
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379 */
380#ifndef PERL_UNUSED_RESULT
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381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
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388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
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399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
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406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
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408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
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411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
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421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
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423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
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426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
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431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
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439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
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441# define pTHX void
442# define pTHX_
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443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
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446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
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448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
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452# define pTHX_5 5
453# define pTHX_6 6
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454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
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458#endif
459
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460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
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464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
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466# define pTHXo pTHX
467# define pTHXo_ pTHX_
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468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
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472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
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477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
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482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
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486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH
492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS
497#endif
498
27da23d5
JH
499/* Some platforms require marking function declarations
500 * for them to be exportable. Used in perlio.h, proto.h
501 * is handled either by the makedef.pl or by defining the
502 * PERL_CALLCONV to be something special. See also the
503 * definition of XS() in XSUB.h. */
504#ifndef PERL_EXPORT_C
a0c21aa1
JH
505# ifdef __cplusplus
506# define PERL_EXPORT_C extern "C"
507# else
508# define PERL_EXPORT_C extern
509# endif
27da23d5
JH
510#endif
511#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH
512# ifdef __cplusplus
513# define PERL_XS_EXPORT_C extern "C"
514# else
515# define PERL_XS_EXPORT_C
516# endif
27da23d5
JH
517#endif
518
5b692037
JH
519#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
520# ifndef PERL_USE_GCC_BRACE_GROUPS
521# define PERL_USE_GCC_BRACE_GROUPS
522# endif
523#endif
524
728e2803
PP
525/*
526 * STMT_START { statements; } STMT_END;
527 * can be used as a single statement, as in
528 * if (x) STMT_START { ... } STMT_END; else ...
529 *
530 * Trying to select a version that gives no warnings...
531 */
532#if !(defined(STMT_START) && defined(STMT_END))
5b692037 533# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 534# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
535# define STMT_END )
536# else
728e2803
PP
537# define STMT_START do
538# define STMT_END while (0)
728e2803
PP
539# endif
540#endif
541
d6f9c181
JH
542#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
543# define BYTEORDER 0x1234
79072805
LW
544#endif
545
546/* Overall memory policy? */
547#ifndef CONSERVATIVE
548# define LIBERAL 1
549#endif
550
8ada0baa
JH
551#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
552#define ASCIIish
553#else
554#undef ASCIIish
555#endif
556
79072805
LW
557/*
558 * The following contortions are brought to you on behalf of all the
559 * standards, semi-standards, de facto standards, not-so-de-facto standards
560 * of the world, as well as all the other botches anyone ever thought of.
561 * The basic theory is that if we work hard enough here, the rest of the
562 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
563 */
ac58e20f 564
ee0007ab 565/* define this once if either system, instead of cluttering up the src */
7c458fae 566#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
567#define DOSISH 1
568#endif
569
739a0b84 570#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
571# define STANDARD_C 1
572#endif
573
8d87852b 574#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
575# define DONT_DECLARE_STD 1
576#endif
577
352d5a3a 578#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 579# define VOL volatile
663a0e37 580#else
79072805 581# define VOL
663a0e37
LW
582#endif
583
284167a5
SM
584/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
585 * you get a perl without taint support, but doubtlessly with a lesser
586 * degree of support. Do not do so unless you know exactly what it means
587 * technically, have a good reason to do so, and know exactly how the
588 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
589 * a potential security risk due to flat out ignoring the security-relevant
590 * taint flags. This being said, a perl without taint support compiled in
591 * has marginal run-time performance benefits.
592 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
593 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
594 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
595 *
596 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 597 * voids your nonexistent warranty!
284167a5 598 */
dc6d7f5c 599#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
600# define NO_TAINT_SUPPORT 1
601#endif
602
603/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
604 * operations into no-ops for a very modest speed-up. Enable only if you
605 * know what you're doing: tests and CPAN modules' tests are bound to fail.
606 */
dc6d7f5c 607#ifdef NO_TAINT_SUPPORT
284167a5
SM
608# define TAINT NOOP
609# define TAINT_NOT NOOP
610# define TAINT_IF(c) NOOP
611# define TAINT_ENV() NOOP
612# define TAINT_PROPER(s) NOOP
613# define TAINT_set(s) NOOP
614# define TAINT_get 0
615# define TAINTING_get 0
616# define TAINTING_set(s) NOOP
617# define TAINT_WARN_get 0
618# define TAINT_WARN_set(s) NOOP
619#else
620# define TAINT (PL_tainted = TRUE)
621# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
622# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
623# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
624# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
625# define TAINT_set(s) (PL_tainted = (s))
626# define TAINT_get (PL_tainted)
627# define TAINTING_get (PL_tainting)
628# define TAINTING_set(s) (PL_tainting = (s))
629# define TAINT_WARN_get (PL_taint_warn)
630# define TAINT_WARN_set(s) (PL_taint_warn = (s))
631#endif
a687059c 632
20be6587
DM
633/* flags used internally only within pp_subst and pp_substcont */
634#ifdef PERL_CORE
635# define SUBST_TAINT_STR 1 /* string tainted */
636# define SUBST_TAINT_PAT 2 /* pattern tainted */
637# define SUBST_TAINT_REPL 4 /* replacement tainted */
638# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
639# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
640#endif
641
d460ef45 642/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
643 defines move there? If so, I could simplify this a lot. --AD 9/96.
644*/
645/* Process group stuff changed from traditional BSD to POSIX.
646 perlfunc.pod documents the traditional BSD-style syntax, so we'll
647 try to preserve that, if possible.
648*/
649#ifdef HAS_SETPGID
650# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 651#else
a6e633de
PP
652# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
653# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
654# else
655# ifdef HAS_SETPGRP2 /* DG/UX */
656# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
657# endif
658# endif
659#endif
660#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
661# define HAS_SETPGRP /* Well, effectively it does . . . */
662#endif
663
664/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
665 our life easier :-) so we'll try it.
666*/
667#ifdef HAS_GETPGID
668# define BSD_GETPGRP(pid) getpgid((pid))
669#else
670# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
671# define BSD_GETPGRP(pid) getpgrp((pid))
672# else
673# ifdef HAS_GETPGRP2 /* DG/UX */
674# define BSD_GETPGRP(pid) getpgrp2((pid))
675# endif
676# endif
677#endif
678#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
679# define HAS_GETPGRP /* Well, effectively it does . . . */
680#endif
681
d460ef45 682/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
683 have different behaviors, but perl.h used to define USE_BSDPGRP
684 (prior to 5.003_05) so some extension might depend on it.
685*/
686#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
687# ifndef USE_BSDPGRP
688# define USE_BSDPGRP
689# endif
663a0e37
LW
690#endif
691
486ec47a 692/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
693 pthread.h must be included before all other header files.
694*/
3db8f154 695#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
696# include <pthread.h>
697#endif
698
58ab9e8b 699#include <sys/types.h>
663a0e37 700
760ac839
LW
701#ifdef __cplusplus
702# ifndef I_STDARG
703# define I_STDARG 1
704# endif
705#endif
706
707#ifdef I_STDARG
708# include <stdarg.h>
709#else
710# ifdef I_VARARGS
711# include <varargs.h>
712# endif
713#endif
714
27db2737
JH
715#ifdef I_STDINT
716# include <stdint.h>
717#endif
718
fe14fcc3 719#include <ctype.h>
a0d0e21e
LW
720
721#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
722#undef METHOD
a0d0e21e
LW
723#endif
724
12ae5dfc
JH
725#ifdef PERL_MICRO
726# define NO_LOCALE
727#endif
728
4633a7c4 729#ifdef I_LOCALE
36477c24 730# include <locale.h>
4633a7c4
LW
731#endif
732
36477c24
PP
733#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
734# define USE_LOCALE
ccd65d51
KW
735# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
736 capability */
36477c24
PP
737# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
738 && defined(HAS_STRXFRM)
739# define USE_LOCALE_COLLATE
740# endif
741# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
742# define USE_LOCALE_CTYPE
743# endif
744# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
745# define USE_LOCALE_NUMERIC
746# endif
fa9b773e
KW
747# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
748# define USE_LOCALE_MESSAGES
749# endif
750# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
751# define USE_LOCALE_MONETARY
752# endif
56e45410
KW
753# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
754# define USE_LOCALE_TIME
755# endif
b385bb4d
KW
756# ifndef WIN32 /* No wrapper except on Windows */
757# define my_setlocale(a,b) setlocale(a,b)
758# endif
36477c24 759#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 760
fe14fcc3 761#include <setjmp.h>
79072805 762
a0d0e21e 763#ifdef I_SYS_PARAM
79072805
LW
764# ifdef PARAM_NEEDS_TYPES
765# include <sys/types.h>
766# endif
767# include <sys/param.h>
352d5a3a 768#endif
79072805 769
ce3470dc
AD
770/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
771 value something like 199306. This may be useful if no more-specific
772 feature test is available.
773*/
774#if defined(BSD)
775# ifndef BSDish
776# define BSDish
777# endif
778#endif
779
79072805 780/* Use all the "standard" definitions? */
a0d0e21e 781#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 782# include <stdlib.h>
ff68c719 783#endif
03a14243 784
3f270f98
JH
785/* If this causes problems, set i_unistd=undef in the hint file. */
786#ifdef I_UNISTD
787# include <unistd.h>
788#endif
789
de8ca8af
NT
790/* for WCOREDUMP */
791#ifdef I_SYS_WAIT
792# include <sys/wait.h>
793#endif
794
9969cdde 795#ifdef __SYMBIAN32__
27da23d5
JH
796# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
797#endif
798
21e89b5f 799#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 800EXTERN_C int syscall(int, ...);
2ef53570
JH
801#endif
802
21e89b5f 803#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 804EXTERN_C int usleep(unsigned int);
2ef53570
JH
805#endif
806
1109a392
MHM
807#ifdef PERL_CORE
808
809/* macros for correct constant construction */
810# if INTSIZE >= 2
811# define U16_CONST(x) ((U16)x##U)
812# else
813# define U16_CONST(x) ((U16)x##UL)
814# endif
815
816# if INTSIZE >= 4
817# define U32_CONST(x) ((U32)x##U)
818# else
819# define U32_CONST(x) ((U32)x##UL)
820# endif
821
822# ifdef HAS_QUAD
823# if INTSIZE >= 8
824# define U64_CONST(x) ((U64)x##U)
825# elif LONGSIZE >= 8
826# define U64_CONST(x) ((U64)x##UL)
827# elif QUADKIND == QUAD_IS_LONG_LONG
828# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
829# elif QUADKIND == QUAD_IS___INT64
830# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
831# else /* best guess we can make */
832# define U64_CONST(x) ((U64)x##UL)
833# endif
834# endif
835
836/* byte-swapping functions for big-/little-endian conversion */
837# define _swab_16_(x) ((U16)( \
838 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
839 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
840
841# define _swab_32_(x) ((U32)( \
842 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
843 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
844 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
845 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
846
847# ifdef HAS_QUAD
848# define _swab_64_(x) ((U64)( \
849 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
850 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
851 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
852 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
853 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
854 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
855 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
856 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
857# endif
858
9c17f24a
NC
859/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
860 at least on FreeBSD. YMMV, so experiment. */
861#ifndef PERL_ARENA_SIZE
862#define PERL_ARENA_SIZE 4080
863#endif
864
ccb2c8b8 865/* Maximum level of recursion */
2b9dff67
RGS
866#ifndef PERL_SUB_DEPTH_WARN
867#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
868#endif
869
1109a392
MHM
870#endif /* PERL_CORE */
871
bdf3085f
NC
872/* We no longer default to creating a new SV for GvSV.
873 Do this before embed. */
874#ifndef PERL_CREATE_GVSV
7459f06b
NC
875# ifndef PERL_DONT_CREATE_GVSV
876# define PERL_DONT_CREATE_GVSV
877# endif
bdf3085f
NC
878#endif
879
ca0c25f6
NC
880#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
881#define PERL_USES_PL_PIDSTATUS
882#endif
883
739a0b84 884#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
885#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
886#endif
887
c31fac66
GS
888#define MEM_SIZE Size_t
889
1936d2a7
NC
890/* Round all values passed to malloc up, by default to a multiple of
891 sizeof(size_t)
892*/
893#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
894#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
895#endif
896
f1200559
WH
897/* sv_grow() will expand strings by at least a certain percentage of
898 the previously *used* length to avoid excessive calls to realloc().
899 The default is 25% of the current length.
900*/
901#ifndef PERL_STRLEN_EXPAND_SHIFT
902# define PERL_STRLEN_EXPAND_SHIFT 2
903#endif
904
3800c318 905#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
906# include <stddef.h>
907# define STRUCT_OFFSET(s,m) offsetof(s,m)
908#else
909# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
910#endif
911
912/* ptrdiff_t is C11, so undef it under pedantic builds */
913#ifdef PERL_GCC_PEDANTIC
914# undef HAS_PTRDIFF_T
51371543
GS
915#endif
916
9969cdde 917#ifndef __SYMBIAN32__
27da23d5
JH
918# if defined(I_STRING) || defined(__cplusplus)
919# include <string.h>
920# else
921# include <strings.h>
922# endif
51371543
GS
923#endif
924
55497cff
PP
925/* This comes after <stdlib.h> so we don't try to change the standard
926 * library prototypes; we'll use our own in proto.h instead. */
03a14243 927
4633a7c4 928#ifdef MYMALLOC
86058a2d 929# ifdef PERL_POLLUTE_MALLOC
ee13e175 930# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
931# define Perl_malloc malloc
932# define Perl_calloc calloc
933# define Perl_realloc realloc
934# define Perl_mfree free
ee13e175 935# endif
86058a2d
GS
936# else
937# define EMBEDMYMALLOC /* for compatibility */
938# endif
827e134a 939
651b9576
GS
940# define safemalloc Perl_malloc
941# define safecalloc Perl_calloc
942# define saferealloc Perl_realloc
943# define safefree Perl_mfree
22f7c9c9
JH
944# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
945 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
946 code; \
947 } STMT_END
948# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
949 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
950# define panic_write2(s) write(2, s, strlen(s))
951# define CHECK_MALLOC_TAINT(newval) \
952 CHECK_MALLOC_TOO_LATE_FOR_( \
953 if (newval) { \
acfd4d8e 954 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 955 exit(1); })
22f7c9c9 956# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 957 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
958 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
959 }} STMT_END;
f2517201
GS
960#else /* MYMALLOC */
961# define safemalloc safesysmalloc
962# define safecalloc safesyscalloc
963# define saferealloc safesysrealloc
964# define safefree safesysfree
22f7c9c9
JH
965# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
966# define CHECK_MALLOC_TAINT(newval) ((void)0)
967# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 968#endif /* MYMALLOC */
4633a7c4 969
fe13d51d 970/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 971#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
972#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
973#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
974#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
975
a0d0e21e
LW
976#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
977#define strchr index
978#define strrchr rindex
979#endif
980
16d20bd9
AD
981#ifdef I_MEMORY
982# include <memory.h>
983#endif
984
fe14fcc3 985#ifdef HAS_MEMCPY
85e6fe83 986# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 987# ifndef memcpy
20ce7b12 988 extern char * memcpy (char*, char*, int);
ee0007ab
LW
989# endif
990# endif
991#else
992# ifndef memcpy
993# ifdef HAS_BCOPY
994# define memcpy(d,s,l) bcopy(s,d,l)
995# else
996# define memcpy(d,s,l) my_bcopy(s,d,l)
997# endif
998# endif
999#endif /* HAS_MEMCPY */
fe14fcc3 1000
ee0007ab 1001#ifdef HAS_MEMSET
85e6fe83 1002# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1003# ifndef memset
20ce7b12 1004 extern char *memset (char*, int, int);
ee0007ab
LW
1005# endif
1006# endif
ee0007ab 1007#else
12ae5dfc 1008# undef memset
fc36a67e 1009# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1010#endif /* HAS_MEMSET */
1011
85e6fe83 1012#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1013# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1014# define memmove(d,s,l) bcopy(s,d,l)
1015# else
2304df62 1016# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1017# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1018# else
79072805 1019# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1020# endif
352d5a3a 1021# endif
d9d8d8de 1022#endif
ee0007ab 1023
36477c24
PP
1024#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1025# undef HAS_MEMCMP
1026#endif
1027
1028#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1029# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1030# ifndef memcmp
20ce7b12 1031 extern int memcmp (char*, char*, int);
ee0007ab
LW
1032# endif
1033# endif
1034#else
1035# ifndef memcmp
ecfc5424 1036# define memcmp my_memcmp
352d5a3a 1037# endif
36477c24 1038#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1039
fc36a67e 1040#ifndef memzero
c635e13b
PP
1041# ifdef HAS_MEMSET
1042# define memzero(d,l) memset(d,0,l)
79072805 1043# else
c635e13b
PP
1044# ifdef HAS_BZERO
1045# define memzero(d,l) bzero(d,l)
79072805 1046# else
fc36a67e 1047# define memzero(d,l) my_bzero(d,l)
79072805
LW
1048# endif
1049# endif
d9d8d8de 1050#endif
378cc40b 1051
2f42fcb0 1052#ifndef PERL_MICRO
0f27ced1
JH
1053#ifndef memchr
1054# ifndef HAS_MEMCHR
1055# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1056# endif
1057#endif
2f42fcb0 1058#endif
0f27ced1 1059
36477c24
PP
1060#ifndef HAS_BCMP
1061# ifndef bcmp
1062# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1063# endif
36477c24 1064#endif /* !HAS_BCMP */
378cc40b 1065
ae986130 1066#ifdef I_NETINET_IN
79072805 1067# include <netinet/in.h>
ae986130
LW
1068#endif
1069
28e8609d
JH
1070#ifdef I_ARPA_INET
1071# include <arpa/inet.h>
1072#endif
1073
1aef975c 1074#ifdef I_SYS_STAT
84902520 1075# include <sys/stat.h>
1aef975c 1076#endif
79072805 1077
287a962e
JD
1078/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1079 This definition should ideally go into win32/win32.h, but S_IFIFO is
1080 used later here in perl.h before win32/win32.h is being included. */
1081#if !defined(S_IFIFO) && defined(_S_IFIFO)
1082# define S_IFIFO _S_IFIFO
1083#endif
1084
cc3315ba 1085/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1086 like UTekV) are broken, sometimes giving false positives. Undefine
1087 them here and let the code below set them to proper values.
1088
1089 The ghs macro stands for GreenHills Software C-1.8.5 which
1090 is the C compiler for sysV88 and the various derivatives.
1091 This header file bug is corrected in gcc-2.5.8 and later versions.
1092 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1093
cc3315ba 1094#if defined(m88k) && defined(ghs)
79072805
LW
1095# undef S_ISDIR
1096# undef S_ISCHR
1097# undef S_ISBLK
1098# undef S_ISREG
1099# undef S_ISFIFO
1100# undef S_ISLNK
ee0007ab 1101#endif
135863df 1102
663a0e37
LW
1103#ifdef I_TIME
1104# include <time.h>
ffed7fef 1105#endif
663a0e37 1106
fe14fcc3 1107#ifdef I_SYS_TIME
85e6fe83 1108# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1109# define KERNEL
1110# endif
1111# include <sys/time.h>
85e6fe83 1112# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1113# undef KERNEL
1114# endif
a687059c 1115#endif
135863df 1116
55497cff 1117#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1118# include <sys/times.h>
d9d8d8de 1119#endif
8d063cd8 1120
fe14fcc3 1121#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1122# undef HAS_STRERROR
663a0e37
LW
1123#endif
1124
1125#include <errno.h>
1e743fda 1126
acfe0abc 1127#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1128# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1129#endif
1130
8cfab5ff 1131/* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
00f254e2 1132 * This is important for using IPv6.
8cfab5ff
JH
1133 * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1134 * a bad idea since it breaks send() and recv(). */
1135#if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1136# define _SOCKADDR_LEN
1137#endif
1138
da70cfc6 1139#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1140# include <sys/socket.h>
1141# if defined(USE_SOCKS) && defined(I_SOCKS)
1142# if !defined(INCLUDE_PROTOTYPES)
1143# define INCLUDE_PROTOTYPES /* for <socks.h> */
1144# define PERL_SOCKS_NEED_PROTOTYPES
1145# endif
1146# include <socks.h>
1147# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1148# undef INCLUDE_PROTOTYPES
1149# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1150# endif
d460ef45 1151# endif
1e743fda 1152# ifdef I_NETDB
2986a63f
JH
1153# ifdef NETWARE
1154# include<stdio.h>
1155# endif
1e743fda
JH
1156# include <netdb.h>
1157# endif
1158# ifndef ENOTSOCK
1159# ifdef I_NET_ERRNO
1160# include <net/errno.h>
1161# endif
1162# endif
1163#endif
1164
fa0a29af 1165/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1166 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1167 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1168#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1169# if defined(__THROW) && defined(__GLIBC__)
1170int sockatmark(int) __THROW;
1171# else
2ef53570 1172int sockatmark(int);
29820b6d 1173# endif
2ef53570
JH
1174#endif
1175
7e827271 1176#if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */
45d3b546
JH
1177EXTERN_C int fchdir(int);
1178EXTERN_C int flock(int, int);
1179EXTERN_C int fseeko(FILE *, off_t, int);
1180EXTERN_C off_t ftello(FILE *);
1181#endif
1182
7e827271 1183#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1184EXTERN_C char *crypt(const char *, const char *);
7e827271 1185EXTERN_C char **environ;
1ccb7c8d
JH
1186#endif
1187
83a6ff2e 1188#if defined(__cplusplus)
ce3470dc 1189# if defined(BSDish)
b91fbb93 1190EXTERN_C char **environ;
83a6ff2e 1191# elif defined(__CYGWIN__)
667e2948
SP
1192EXTERN_C char *crypt(const char *, const char *);
1193#endif
83a6ff2e 1194#endif
667e2948 1195
1e743fda
JH
1196#ifdef SETERRNO
1197# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1198#endif
f86702cc
PP
1199
1200#ifdef VMS
1201# define SETERRNO(errcode,vmserrcode) \
1202 STMT_START { \
1203 set_errno(errcode); \
1204 set_vaxc_errno(vmserrcode); \
1205 } STMT_END
4ee39169
CS
1206# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1207# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1208# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1209# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1210
93189314
JH
1211# define LIB_INVARG LIB$_INVARG
1212# define RMS_DIR RMS$_DIR
1213# define RMS_FAC RMS$_FAC
1214# define RMS_FEX RMS$_FEX
1215# define RMS_FNF RMS$_FNF
1216# define RMS_IFI RMS$_IFI
1217# define RMS_ISI RMS$_ISI
1218# define RMS_PRV RMS$_PRV
1219# define SS_ACCVIO SS$_ACCVIO
1220# define SS_DEVOFFLINE SS$_DEVOFFLINE
1221# define SS_IVCHAN SS$_IVCHAN
1222# define SS_NORMAL SS$_NORMAL
8a9f18be 1223# define SS_NOPRIV SS$_NOPRIV
748a9306 1224#else
93189314
JH
1225# define LIB_INVARG 0
1226# define RMS_DIR 0
1227# define RMS_FAC 0
1228# define RMS_FEX 0
1229# define RMS_FNF 0
1230# define RMS_IFI 0
1231# define RMS_ISI 0
1232# define RMS_PRV 0
1233# define SS_ACCVIO 0
1234# define SS_DEVOFFLINE 0
1235# define SS_IVCHAN 0
1236# define SS_NORMAL 0
8a9f18be 1237# define SS_NOPRIV 0
748a9306 1238#endif
ed6116ce 1239
6ca940a9
TC
1240#ifdef WIN32
1241# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1242# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1243# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1244# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1245#endif
1246
1247#ifdef OS2
1248# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1249# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1250# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1251# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1252#endif
1253
1254#ifndef SETERRNO
1255# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1256#endif
1257
1258#ifndef dSAVEDERRNO
1259# define dSAVEDERRNO int saved_errno
1260# define dSAVE_ERRNO int saved_errno = errno
1261# define SAVE_ERRNO (saved_errno = errno)
1262# define RESTORE_ERRNO (errno = saved_errno)
1263#endif
1264
f5fa9033 1265#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1266
1267#define CLEAR_ERRSV() STMT_START { \
1268 if (!GvSV(PL_errgv)) { \
1269 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1270 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1271 SvREFCNT_dec(GvSV(PL_errgv)); \
1272 GvSV(PL_errgv) = newSVpvs(""); \
1273 } else { \
1274 SV *const errsv = GvSV(PL_errgv); \
1275 sv_setpvs(errsv, ""); \
1276 if (SvMAGICAL(errsv)) { \
1277 mg_free(errsv); \
1278 } \
1279 SvPOK_only(errsv); \
1280 } \
1281 } STMT_END
1282
1283
414bf5ae
MHM
1284#ifdef PERL_CORE
1285# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1286# define DEFSV_set(sv) \
1287 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1288# define SAVE_DEFSV \
1289 ( \
1290 save_gp(PL_defgv, 0), \
1291 GvINTRO_off(PL_defgv), \
1292 SAVEGENERICSV(GvSV(PL_defgv)), \
1293 GvSV(PL_defgv) = NULL \
1294 )
414bf5ae
MHM
1295#else
1296# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1297# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1298# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1299#endif
38a03e6e 1300
55497cff 1301#ifndef errno
5ff3f7a4
GS
1302 extern int errno; /* ANSI allows errno to be an lvalue expr.
1303 * For example in multithreaded environments
1304 * something like this might happen:
1305 * extern int *_errno(void);
1306 * #define errno (*_errno()) */
d9d8d8de 1307#endif
663a0e37 1308
7e996671
KW
1309#define UNKNOWN_ERRNO_MSG "(unknown)"
1310
2304df62 1311#ifdef HAS_STRERROR
b3e384bf 1312# ifndef DONT_DECLARE_STD
a0d0e21e 1313# ifdef VMS
20ce7b12 1314 char *strerror (int,...);
a0d0e21e 1315# else
20ce7b12 1316 char *strerror (int);
a0d0e21e 1317# endif
b3e384bf
KW
1318# endif
1319# ifndef Strerror
1320# define Strerror strerror
1321# endif
2304df62
AD
1322#else
1323# ifdef HAS_SYS_ERRLIST
79072805
LW
1324 extern int sys_nerr;
1325 extern char *sys_errlist[];
2304df62
AD
1326# ifndef Strerror
1327# define Strerror(e) \
7e996671 1328 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1329# endif
79072805 1330# endif
35c8bce7 1331#endif
663a0e37 1332
2304df62 1333#ifdef I_SYS_IOCTL
79072805
LW
1334# ifndef _IOCTL_
1335# include <sys/ioctl.h>
1336# endif
a687059c
LW
1337#endif
1338
ee0007ab 1339#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1340# ifdef HAS_SOCKETPAIR
1341# undef HAS_SOCKETPAIR
1342# endif
2304df62
AD
1343# ifdef I_NDBM
1344# undef I_NDBM
79072805 1345# endif
a687059c
LW
1346#endif
1347
02fc2eee
NC
1348#ifndef HAS_SOCKETPAIR
1349# ifdef HAS_SOCKET
1350# define socketpair Perl_my_socketpair
1351# endif
1352#endif
1353
a687059c 1354#if INTSIZE == 2
79072805
LW
1355# define htoni htons
1356# define ntohi ntohs
a687059c 1357#else
79072805
LW
1358# define htoni htonl
1359# define ntohi ntohl
a687059c
LW
1360#endif
1361
a0d0e21e 1362/* Configure already sets Direntry_t */
35c8bce7 1363#if defined(I_DIRENT)
663a0e37 1364# include <dirent.h>
ae986130 1365#else
fe14fcc3 1366# ifdef I_SYS_NDIR
79a0689e 1367# include <sys/ndir.h>
663a0e37 1368# else
fe14fcc3 1369# ifdef I_SYS_DIR
79a0689e
LW
1370# ifdef hp9000s500
1371# include <ndir.h> /* may be wrong in the future */
1372# else
1373# include <sys/dir.h>
1374# endif
663a0e37
LW
1375# endif
1376# endif
4633a7c4 1377#endif
a687059c 1378
c623bd54
LW
1379/*
1380 * The following gobbledygook brought to you on behalf of __STDC__.
1381 * (I could just use #ifndef __STDC__, but this is more bulletproof
1382 * in the face of half-implementations.)
1383 */
1384
21e89b5f 1385#if defined(I_SYSMODE)
ca6e1c26
JH
1386#include <sys/mode.h>
1387#endif
1388
c623bd54
LW
1389#ifndef S_IFMT
1390# ifdef _S_IFMT
1391# define S_IFMT _S_IFMT
1392# else
1393# define S_IFMT 0170000
1394# endif
1395#endif
1396
1397#ifndef S_ISDIR
1398# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1399#endif
1400
1401#ifndef S_ISCHR
1402# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1403#endif
1404
1405#ifndef S_ISBLK
fe14fcc3
LW
1406# ifdef S_IFBLK
1407# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1408# else
1409# define S_ISBLK(m) (0)
1410# endif
c623bd54
LW
1411#endif
1412
1413#ifndef S_ISREG
1414# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1415#endif
1416
1417#ifndef S_ISFIFO
fe14fcc3
LW
1418# ifdef S_IFIFO
1419# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1420# else
1421# define S_ISFIFO(m) (0)
1422# endif
c623bd54
LW
1423#endif
1424
1425#ifndef S_ISLNK
1426# ifdef _S_ISLNK
1427# define S_ISLNK(m) _S_ISLNK(m)
1428# else
1429# ifdef _S_IFLNK
1430# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1431# else
1432# ifdef S_IFLNK
1433# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1434# else
1435# define S_ISLNK(m) (0)
1436# endif
1437# endif
1438# endif
1439#endif
1440
1441#ifndef S_ISSOCK
1442# ifdef _S_ISSOCK
1443# define S_ISSOCK(m) _S_ISSOCK(m)
1444# else
1445# ifdef _S_IFSOCK
1446# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1447# else
1448# ifdef S_IFSOCK
1449# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1450# else
1451# define S_ISSOCK(m) (0)
1452# endif
1453# endif
1454# endif
1455#endif
1456
1457#ifndef S_IRUSR
1458# ifdef S_IREAD
1459# define S_IRUSR S_IREAD
1460# define S_IWUSR S_IWRITE
1461# define S_IXUSR S_IEXEC
1462# else
1463# define S_IRUSR 0400
1464# define S_IWUSR 0200
1465# define S_IXUSR 0100
1466# endif
fac7cdfc 1467#endif
1468
1469#ifndef S_IRGRP
1470# ifdef S_IRUSR
1471# define S_IRGRP (S_IRUSR>>3)
1472# define S_IWGRP (S_IWUSR>>3)
1473# define S_IXGRP (S_IXUSR>>3)
1474# else
1475# define S_IRGRP 0040
1476# define S_IWGRP 0020
1477# define S_IXGRP 0010
1478# endif
1479#endif
1480
1481#ifndef S_IROTH
1482# ifdef S_IRUSR
1483# define S_IROTH (S_IRUSR>>6)
1484# define S_IWOTH (S_IWUSR>>6)
1485# define S_IXOTH (S_IXUSR>>6)
1486# else
1487# define S_IROTH 0040
1488# define S_IWOTH 0020
1489# define S_IXOTH 0010
1490# endif
c623bd54
LW
1491#endif
1492
1493#ifndef S_ISUID
1494# define S_ISUID 04000
1495#endif
1496
1497#ifndef S_ISGID
1498# define S_ISGID 02000
1499#endif
1500
ca6e1c26
JH
1501#ifndef S_IRWXU
1502# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1503#endif
ca6e1c26
JH
1504
1505#ifndef S_IRWXG
1506# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1507#endif
ca6e1c26
JH
1508
1509#ifndef S_IRWXO
1510# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1511#endif
ca6e1c26 1512
b6c36746 1513/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1514 * which would get included through <sys/file.h >, but that is 3000
1515 * lines in the future. --jhi */
1516
b6c36746 1517#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1518# define S_IREAD S_IRUSR
1519#endif
1520
b6c36746 1521#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1522# define S_IWRITE S_IWUSR
1523#endif
1524
1525#ifndef S_IEXEC
1526# define S_IEXEC S_IXUSR
1527#endif
1528
a0d0e21e 1529#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1530# define SLOPPYDIVIDE
1531#endif
1532
748a9306
LW
1533#ifdef UV
1534#undef UV
1535#endif
1536
ce582cee
NC
1537/* For the times when you want the return value of sprintf, and you want it
1538 to be the length. Can't have a thread variable passed in, because C89 has
1539 no varargs macros.
1540*/
1541#ifdef SPRINTF_RETURNS_STRLEN
1542# define my_sprintf sprintf
1543#else
1544# define my_sprintf Perl_my_sprintf
1545#endif
1546
5b692037
JH
1547/*
1548 * If we have v?snprintf() and the C99 variadic macros, we can just
1549 * use just the v?snprintf(). It is nice to try to trap the buffer
1550 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1551 * gcc statement expressions, then use the function wrappers which try
1552 * to trap the overflow. If we can use the gcc statement expressions,
1553 * we can try that even with the version that uses the C99 variadic
1554 * macros.
5b692037
JH
1555 */
1556
1208b3dd
JH
1557/* Note that we do not check against snprintf()/vsnprintf() returning
1558 * negative values because that is non-standard behaviour and we use
1559 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1560 * that should be true only if the snprintf()/vsnprintf() are true
1561 * to the standard. */
1562
e8549682
JH
1563#define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len >= (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END
1564
dfeee9b1 1565#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1566# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1567# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1568# define PERL_MY_SNPRINTF_GUARDED
5b692037 1569# else
e8549682 1570# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1571# endif
1572#else
1573# define my_snprintf Perl_my_snprintf
1208b3dd 1574# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1575#endif
1576
dfeee9b1 1577#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1578# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1579# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1580# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1581# else
e8549682 1582# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1583# endif
1584#else
1585# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1586# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1587#endif
d9fad198 1588
e8549682
JH
1589/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1590 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1591 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1592 * completely ignore it: otherwise you cannot know whether your output
1593 * was too long.)
1594 *
1595 * int len = my_sprintf(buf, max, ...);
1596 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1597 *
1598 * The trick is that in certain platforms [a] the my_sprintf() already
1599 * contains the sanity check, while in certain platforms [b] it needs
1600 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1601 * platforms the POST_GUARD actually does nothing since the check has
1602 * already been done. Watch out for the max being the same in both calls.
1603 *
1604 * If you actually use the snprintf/vsnprintf return value already,
1605 * you assumedly are checking its validity somehow. But you can
1606 * insert the POST_GUARD() also in that case. */
1607
1608#ifndef PERL_MY_SNPRINTF_GUARDED
1609# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1610#else
1611# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1612#endif
1613
1614#ifndef PERL_MY_VSNPRINTF_GUARDED
1615# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1616#else
1617# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1618#endif
1619
a6cc4119
SP
1620#ifdef HAS_STRLCAT
1621# define my_strlcat strlcat
1622#else
1623# define my_strlcat Perl_my_strlcat
1624#endif
1625
1626#ifdef HAS_STRLCPY
1627# define my_strlcpy strlcpy
1628#else
1629# define my_strlcpy Perl_my_strlcpy
1630#endif
1631
05f13f53 1632/*
27d4fb96
PP
1633 The IV type is supposed to be long enough to hold any integral
1634 value or a pointer.
1635 --Andy Dougherty August 1996
1636*/
1637
a22e52b9
JH
1638typedef IVTYPE IV;
1639typedef UVTYPE UV;
8175356b 1640
10cc9d2a 1641#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1642# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1643# define IV_MAX INT64_MAX
1644# define IV_MIN INT64_MIN
1645# define UV_MAX UINT64_MAX
cae7ae48
JH
1646# ifndef UINT64_MIN
1647# define UINT64_MIN 0
1648# endif
5ff3f7a4
GS
1649# define UV_MIN UINT64_MIN
1650# else
1651# define IV_MAX PERL_QUAD_MAX
1652# define IV_MIN PERL_QUAD_MIN
1653# define UV_MAX PERL_UQUAD_MAX
1654# define UV_MIN PERL_UQUAD_MIN
1655# endif
cf2093f6
JH
1656# define IV_IS_QUAD
1657# define UV_IS_QUAD
79072805 1658#else
8175356b 1659# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1660# define IV_MAX INT32_MAX
1661# define IV_MIN INT32_MIN
716026f9
DL
1662# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1663# define UV_MAX UINT32_MAX
1664# else
1665# define UV_MAX 4294967295U
1666# endif
cae7ae48
JH
1667# ifndef UINT32_MIN
1668# define UINT32_MIN 0
1669# endif
5ff3f7a4
GS
1670# define UV_MIN UINT32_MIN
1671# else
1672# define IV_MAX PERL_LONG_MAX
1673# define IV_MIN PERL_LONG_MIN
1674# define UV_MAX PERL_ULONG_MAX
1675# define UV_MIN PERL_ULONG_MIN
1676# endif
8175356b 1677# if IVSIZE == 8
cf2093f6
JH
1678# define IV_IS_QUAD
1679# define UV_IS_QUAD
de1c2614
JH
1680# ifndef HAS_QUAD
1681# define HAS_QUAD
1682# endif
cf2093f6
JH
1683# else
1684# undef IV_IS_QUAD
1685# undef UV_IS_QUAD
9ea40801 1686#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1687/* We think that removing this decade-old undef this will cause too much
1688 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1689 However, we do need HAS_QUAD in the core for use by the drand48 code,
1690 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1691# undef HAS_QUAD
e25d460c 1692#endif
cf2093f6 1693# endif
79072805 1694#endif
d7d93a81 1695
6313e544
JH
1696#define Size_t_MAX (~(Size_t)0)
1697#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1698
cae7ae48 1699#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1700#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1701
28e5dec8 1702#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1703#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1704#endif
1705
d460ef45 1706/*
26bb67e2
JH
1707 * The macros INT2PTR and NUM2PTR are (despite their names)
1708 * bi-directional: they will convert int/float to or from pointers.
1709 * However the conversion to int/float are named explicitly:
1710 * PTR2IV, PTR2UV, PTR2NV.
1711 *
1712 * For int conversions we do not need two casts if pointers are
1713 * the same size as IV and UV. Otherwise we need an explicit
1714 * cast (PTRV) to avoid compiler warnings.
1715 */
56431972
RB
1716#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1717# define PTRV UV
1718# define INT2PTR(any,d) (any)(d)
1719#else
d460ef45 1720# if PTRSIZE == LONGSIZE
56431972 1721# define PTRV unsigned long
e91e3b10 1722# define PTR2ul(p) (unsigned long)(p)
42718184 1723# else
56431972 1724# define PTRV unsigned
42718184 1725# endif
e91e3b10
RB
1726#endif
1727
1728#ifndef INT2PTR
56431972 1729# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1730#endif
e91e3b10
RB
1731
1732#ifndef PTR2ul
1733# define PTR2ul(p) INT2PTR(unsigned long,p)
1734#endif
1735
56431972
RB
1736#define NUM2PTR(any,d) (any)(PTRV)(d)
1737#define PTR2IV(p) INT2PTR(IV,p)
1738#define PTR2UV(p) INT2PTR(UV,p)
1739#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1740#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1741
8141890a
JH
1742/* According to strict ANSI C89 one cannot freely cast between
1743 * data pointers and function (code) pointers. There are at least
1744 * two ways around this. One (used below) is to do two casts,
1745 * first the other pointer to an (unsigned) integer, and then
1746 * the integer to the other pointer. The other way would be
1747 * to use unions to "overlay" the pointers. For an example of
1748 * the latter technique, see union dirpu in struct xpvio in sv.h.
1749 * The only feasible use is probably temporarily storing
1750 * function pointers in a data pointer (such as a void pointer). */
1751
e91e3b10
RB
1752#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1753#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1754
65202027 1755#ifdef USE_LONG_DOUBLE
1048ea30
JH
1756# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1757# define LONG_DOUBLE_EQUALS_DOUBLE
1758# endif
68d4903c 1759# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1760# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1761# endif
1762#endif
1763
2d4389e4
JH
1764#ifdef OVR_DBL_DIG
1765/* Use an overridden DBL_DIG */
1766# ifdef DBL_DIG
1767# undef DBL_DIG
1768# endif
1769# define DBL_DIG OVR_DBL_DIG
1770#else
1771/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1772 default value for printing floating point numbers in Gconvert
1773 (see config.h). (It also has other uses, such as figuring out if
1774 a given precision of printing can be done with a double instead of
1775 a long double - Allen).
2d4389e4
JH
1776*/
1777#ifdef I_LIMITS
1778#include <limits.h>
1779#endif
1780#ifdef I_FLOAT
1781#include <float.h>
1782#endif
1783#ifndef HAS_DBL_DIG
1784#define DBL_DIG 15 /* A guess that works lots of places */
1785#endif
1786#endif
1787
1788#ifdef OVR_LDBL_DIG
1789/* Use an overridden LDBL_DIG */
1790# ifdef LDBL_DIG
1791# undef LDBL_DIG
1792# endif
1793# define LDBL_DIG OVR_LDBL_DIG
1794#else
1795/* The following is all to get LDBL_DIG, in order to pick a nice
1796 default value for printing floating point numbers in Gconvert.
1797 (see config.h)
1798*/
68d4903c
JH
1799# ifdef I_LIMITS
1800# include <limits.h>
1801# endif
1802# ifdef I_FLOAT
1803# include <float.h>
1804# endif
1805# ifndef HAS_LDBL_DIG
1806# if LONG_DOUBLESIZE == 10
1807# define LDBL_DIG 18 /* assume IEEE */
1808# else
1809# if LONG_DOUBLESIZE == 12
1810# define LDBL_DIG 18 /* gcc? */
1811# else
1812# if LONG_DOUBLESIZE == 16
1813# define LDBL_DIG 33 /* assume IEEE */
1814# else
1815# if LONG_DOUBLESIZE == DOUBLESIZE
1816# define LDBL_DIG DBL_DIG /* bummer */
1817# endif
1818# endif
1819# endif
1820# endif
1821# endif
2d4389e4
JH
1822#endif
1823
20f6aaab
AS
1824/*
1825 * This is for making sure we have a good DBL_MAX value, if possible,
1826 * either for usage as NV_MAX or for usage in figuring out if we can
1827 * fit a given long double into a double, if bug-fixing makes it
1828 * necessary to do so. - Allen <allens@cpan.org>
1829 */
1830
205f51d8
AS
1831#ifdef I_LIMITS
1832# include <limits.h>
20f6aaab
AS
1833#endif
1834
205f51d8
AS
1835#ifdef I_VALUES
1836# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1837# include <values.h>
1838# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1839# define DBL_MAX MAXDOUBLE
1840# endif
1841# if defined(MINDOUBLE) && !defined(DBL_MIN)
1842# define DBL_MIN MINDOUBLE
1843# endif
1844# endif
1845#endif /* defined(I_VALUES) */
1846
a22e52b9 1847typedef NVTYPE NV;
8175356b 1848
792d8dab
JH
1849#ifdef I_IEEEFP
1850# include <ieeefp.h>
1851#endif
923fc586 1852
65202027 1853#ifdef USE_LONG_DOUBLE
923fc586
JH
1854# ifdef I_SUNMATH
1855# include <sunmath.h>
1856# endif
2d4389e4 1857# define NV_DIG LDBL_DIG
d6c14000
JH
1858# ifdef LDBL_MANT_DIG
1859# define NV_MANT_DIG LDBL_MANT_DIG
1860# endif
06fc1729
JH
1861# ifdef LDBL_MIN
1862# define NV_MIN LDBL_MIN
1863# endif
1864# ifdef LDBL_MAX
1865# define NV_MAX LDBL_MAX
1866# endif
40bca5ae
JH
1867# ifdef LDBL_MIN_EXP
1868# define NV_MIN_EXP LDBL_MIN_EXP
1869# endif
1870# ifdef LDBL_MAX_EXP
1871# define NV_MAX_EXP LDBL_MAX_EXP
1872# endif
06fc1729
JH
1873# ifdef LDBL_MIN_10_EXP
1874# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1875# endif
1876# ifdef LDBL_MAX_10_EXP
1877# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1878# endif
1879# ifdef LDBL_EPSILON
1880# define NV_EPSILON LDBL_EPSILON
1881# endif
f4a14a62
JH
1882# ifdef LDBL_MAX
1883# define NV_MAX LDBL_MAX
20f6aaab 1884/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62
JH
1885# else
1886# ifdef HUGE_VALL
1887# define NV_MAX HUGE_VALL
1888# else
1889# ifdef HUGE_VAL
1890# define NV_MAX ((NV)HUGE_VAL)
1891# endif
1892# endif
1893# endif
68d4903c 1894# ifdef HAS_SQRTL
55da5e5b 1895/* These math interfaces are the long double cousins of the C89 math. */
8a00eddc
JH
1896# define Perl_acos acosl
1897# define Perl_asin asinl
1898# define Perl_atan atanl
940e3d56
JH
1899# define Perl_atan2 atan2l
1900# define Perl_ceil ceill
1901# define Perl_cos cosl
8a00eddc 1902# define Perl_cosh coshl
940e3d56 1903# define Perl_exp expl
55da5e5b 1904/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1905# define Perl_floor floorl
1906# define Perl_fmod fmodl
1907# define Perl_log logl
8a00eddc 1908# define Perl_log10 log10l
940e3d56
JH
1909# define Perl_pow powl
1910# define Perl_sin sinl
8a00eddc 1911# define Perl_sinh sinhl
940e3d56 1912# define Perl_sqrt sqrtl
8a00eddc
JH
1913# define Perl_tan tanl
1914# define Perl_tanh tanhl
68d4903c 1915# endif
a3540c92
JH
1916/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1917# ifdef HAS_MODFL
1918# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1919/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1920 prototype in <math.h> */
1921# ifndef HAS_MODFL_PROTO
a221a8a5 1922EXTERN_C long double modfl(long double, long double *);
51997bc3 1923# endif
d67dac15 1924# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1925 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1926# define Perl_modf(x,y) Perl_my_modfl(x,y)
a3540c92
JH
1927# endif
1928# ifdef HAS_FREXPL
dff3e0b8 1929# define Perl_frexp(x,y) frexpl(x,y)
03476e8e
JH
1930# else
1931# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
55954f19 1932 extern long double Perl_my_frexpl(long double x, int *e);
03476e8e
JH
1933# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1934# endif
a3540c92 1935# endif
98181445
JH
1936# ifdef HAS_LDEXPL
1937# define Perl_ldexp(x, y) ldexpl(x,y)
1938# else
1939# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1940# define Perl_ldexp(x,y) scalbnl(x,y)
1941# endif
1942# endif
38dbb4c5 1943# ifndef Perl_isnan
e4c957f4 1944# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1945# define Perl_isnan(x) isnanl(x)
1946# endif
1947# endif
1948# ifndef Perl_isinf
e4c957f4 1949# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1950# define Perl_isinf(x) isinfl(x)
efcbf317
JH
1951# elif defined(LDBL_MAX)
1952# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1953# endif
1954# endif
d3685250 1955# define Perl_isfinite(x) Perl_isfinitel(x)
65202027 1956#else
2d4389e4 1957# define NV_DIG DBL_DIG
d6c14000
JH
1958# ifdef DBL_MANT_DIG
1959# define NV_MANT_DIG DBL_MANT_DIG
1960# endif
06fc1729
JH
1961# ifdef DBL_MIN
1962# define NV_MIN DBL_MIN
1963# endif
1964# ifdef DBL_MAX
1965# define NV_MAX DBL_MAX
1966# endif
40bca5ae
JH
1967# ifdef DBL_MIN_EXP
1968# define NV_MIN_EXP DBL_MIN_EXP
1969# endif
1970# ifdef DBL_MAX_EXP
1971# define NV_MAX_EXP DBL_MAX_EXP
1972# endif
06fc1729
JH
1973# ifdef DBL_MIN_10_EXP
1974# define NV_MIN_10_EXP DBL_MIN_10_EXP
1975# endif
1976# ifdef DBL_MAX_10_EXP
1977# define NV_MAX_10_EXP DBL_MAX_10_EXP
1978# endif
1979# ifdef DBL_EPSILON
1980# define NV_EPSILON DBL_EPSILON
1981# endif
205f51d8 1982# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
1983# define NV_MAX DBL_MAX
1984# define NV_MIN DBL_MIN
1985# else
1986# ifdef HUGE_VAL
1987# define NV_MAX HUGE_VAL
1988# endif
1989# endif
940e3d56 1990
55da5e5b 1991/* These math interfaces are C89. */
8a00eddc
JH
1992# define Perl_acos acos
1993# define Perl_asin asin
1994# define Perl_atan atan
940e3d56
JH
1995# define Perl_atan2 atan2
1996# define Perl_ceil ceil
1997# define Perl_cos cos
8a00eddc 1998# define Perl_cosh cosh
940e3d56 1999# define Perl_exp exp
55da5e5b 2000/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2001# define Perl_floor floor
2002# define Perl_fmod fmod
2003# define Perl_log log
8a00eddc 2004# define Perl_log10 log10
940e3d56
JH
2005# define Perl_pow pow
2006# define Perl_sin sin
8a00eddc 2007# define Perl_sinh sinh
940e3d56 2008# define Perl_sqrt sqrt
8a00eddc
JH
2009# define Perl_tan tan
2010# define Perl_tanh tanh
940e3d56
JH
2011
2012# define Perl_modf(x,y) modf(x,y)
2013# define Perl_frexp(x,y) frexp(x,y)
2014# define Perl_ldexp(x,y) ldexp(x,y)
2015
1a322af2
JH
2016# ifndef Perl_isnan
2017# ifdef HAS_ISNAN
2018# define Perl_isnan(x) isnan(x)
2019# endif
2020# endif
2021# ifndef Perl_isinf
2022# if defined(HAS_ISINF)
2023# define Perl_isinf(x) isinf(x)
efcbf317
JH
2024# elif defined(DBL_MAX)
2025# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2026# endif
2027# endif
2028# ifndef Perl_isfinite
2029# ifdef HAS_ISFINITE
2030# define Perl_isfinite(x) isfinite(x)
2031# elif defined(HAS_FINITE)
2032# define Perl_isfinite(x) finite(x)
99bf9e32
JH
2033# else
2034/* For the infinities the multiplication returns nan,
2035 * for the nan the multiplication also returns nan,
2036 * for everything else (that is, finite) zero should be returned. */
2037# define Perl_isfinite(x) ((x) * 0 == 0)
1a322af2
JH
2038# endif
2039# endif
758a5d79
JH
2040#endif
2041
30404d48
JH
2042/* fpclassify(): C99. It is supposed to be a macro that switches on
2043* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2044#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2045# include <math.h>
25c46df8
JH
2046# if defined(FP_INFINITE) && defined(FP_NAN)
2047# define Perl_fp_class(x) fpclassify(x)
2048# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2049# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2050# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2051# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2052# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2053# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2054/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2055 * actually not the C99 fpclassify, with its own set of return defines. */
2056# define Perl_fp_class(x) fpclassify(x)
2057# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2058# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2059# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2060# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2061# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2062# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2063# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2064# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2065# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2066# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2067# else
2068# undef Perl_fp_class /* Unknown set of defines */
2069# endif
30404d48
JH
2070#endif
2071
25c46df8
JH
2072/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2073 * are identical to the C99 fpclassify(). */
2074#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2075# include <math.h>
558f3e66
CB
2076# ifdef __VMS
2077 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2078# include <fp.h>
56610b8f
CB
2079 /* oh, and the isnormal macro has a typo in it! */
2080# undef isnormal
2081# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2082# endif
25c46df8
JH
2083# if defined(FP_INFINITE) && defined(FP_NAN)
2084# define Perl_fp_class(x) fp_classify(x)
2085# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2086# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2087# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2088# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2089# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2090# else
2091# undef Perl_fp_class /* Unknown set of defines */
2092# endif
f279e099 2093#endif
205f51d8 2094
30404d48
JH
2095/* Feel free to check with me for the SGI manpages, SGI testing,
2096 * etcetera, if you want to try getting this to work with IRIX.
2097 *
2098 * - Allen <allens@cpan.org> */
2099
2100/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2101#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2102/* Solaris and IRIX have fpclass/fpclassl, but they are using
2103 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2104 * Define some symbols also as cpp symbols so we can detect them. */
2105# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2106# define FP_PINF FP_PINF
2107# define FP_QNAN FP_QNAN
2108# endif
f279e099 2109# include <math.h>
758a5d79
JH
2110# ifdef I_IEEFP
2111# include <ieeefp.h>
2112# endif
2113# ifdef I_FP
2114# include <fp.h>
2115# endif
2116# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2117# define Perl_fp_class(x) fpclassl(x)
758a5d79 2118# else
f279e099
JH
2119# define Perl_fp_class(x) fpclass(x)
2120# endif
25c46df8 2121# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2122# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2123# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2124# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2125# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2126# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2127# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2128# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2129# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2130# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2131# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2132# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2133# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2134# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2135# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2136# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2137# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2138# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2139# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2140# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2141# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2142# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2143# else
2144# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2145# endif
758a5d79
JH
2146#endif
2147
30404d48
JH
2148/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2149#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2150# include <math.h>
2151# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2152# include <fp_class.h>
2153# endif
25c46df8
JH
2154# if defined(FP_POS_INF) && defined(FP_QNAN)
2155# ifdef __irix__ /* XXX Configure test instead */
2156# ifdef USE_LONG_DOUBLE
2157# define Perl_fp_class(x) fp_class_l(x)
2158# else
2159# define Perl_fp_class(x) fp_class_d(x)
2160# endif
f279e099 2161# else
25c46df8
JH
2162# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2163# define Perl_fp_class(x) fp_classl(x)
2164# else
2165# define Perl_fp_class(x) fp_class(x)
2166# endif
f279e099 2167# endif
25c46df8
JH
2168# if defined(FP_POS_INF) && defined(FP_QNAN)
2169# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2170# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2171# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2172# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2173# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2174# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2175# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2176# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2177# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2178# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2179# else
25c46df8 2180# undef Perl_fp_class /* Unknown set of defines */
30404d48 2181# endif
f279e099 2182# endif
30404d48
JH
2183#endif
2184
052758ae 2185/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2186#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2187# include <math.h>
25c46df8
JH
2188# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2189# ifndef _cplusplus
2190# define Perl_fp_class(x) class(x)
2191# else
2192# define Perl_fp_class(x) _class(x)
2193# endif
2194# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2195# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2196# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2197# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2198# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2199# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2200# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2201# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2202# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2203# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2204# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2205# else
2206# undef Perl_fp_class /* Unknown set of defines */
2207# endif
758a5d79 2208# endif
30404d48
JH
2209#endif
2210
2211/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2212#ifdef WIN32
2213# ifndef Perl_isnan
2214# define Perl_isnan(x) _isnan(x)
2215# endif
2216# ifndef Perl_isfinite
2217# define Perl_isfinite(x) _finite(x)
2218# endif
2219# ifndef Perl_fp_class_snan
25c46df8
JH
2220/* No simple way to #define Perl_fp_class because _fpclass()
2221 * returns a set of bits. */
796ea9ea
JH
2222# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2223# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2224# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2225# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2226# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2227# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2228# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2229# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2230# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2231# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2232# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2233# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2234# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2235# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2236# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2237# endif
f279e099
JH
2238#endif
2239
2240#if !defined(Perl_fp_class_inf) && \
2241 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2242# define Perl_fp_class_inf(x) \
2243 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2244#endif
2245
2246#if !defined(Perl_fp_class_nan) && \
2247 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2248# define Perl_fp_class_nan(x) \
2249 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2250#endif
2251
2252#if !defined(Perl_fp_class_zero) && \
2253 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2254# define Perl_fp_class_zero(x) \
2255 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2256#endif
2257
2258#if !defined(Perl_fp_class_norm) && \
2259 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2260# define Perl_fp_class_norm(x) \
2261 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2262#endif
2263
2264#if !defined(Perl_fp_class_denorm) && \
2265 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2266# define Perl_fp_class_denorm(x) \
2267 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2268#endif
758a5d79 2269
1a322af2
JH
2270#ifdef UNDER_CE
2271int isnan(double d);
2272#endif
2273
758a5d79 2274#ifndef Perl_isnan
1a322af2
JH
2275# ifdef Perl_fp_class_nan
2276# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2277# else
1a322af2
JH
2278# ifdef HAS_UNORDERED
2279# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2280# else
1a322af2 2281# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2282# endif
2283# endif
2284#endif
2285
1a322af2
JH
2286#ifndef Perl_isinf
2287# ifdef Perl_fp_class_inf
2288# define Perl_isinf(x) Perl_fp_class_inf(x)
2289# endif
ca6c63e1
JH
2290#endif
2291
758a5d79 2292#ifndef Perl_isfinite
25c46df8 2293# if defined(HAS_ISFINITE) && !defined(isfinite)
87190886 2294# define Perl_isfinite(x) isfinite((double)x)
4efd38a4 2295# elif defined(HAS_FINITE)
87190886 2296# define Perl_isfinite(x) finite((double)x)
4efd38a4
JH
2297# elif defined(Perl_fp_class_finite)
2298# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2299# else
4efd38a4
JH
2300/* NaN*0 is NaN, [+-]Inf*0 is NaN, zero for anything else. */
2301# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2302# endif
65202027
DS
2303#endif
2304
25c46df8
JH
2305#ifndef Perl_isinf
2306# if defined(Perl_isfinite) && defined(Perl_isnan)
2307# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2308# endif
2309#endif
2310
d3685250
JH
2311/* We need Perl_isfinitel (ends with ell) (if available) even when
2312 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2313 * needs that. */
2314#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2315/* If isfinite() is a macro and looks like we have C99,
2316 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2317# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2318# define Perl_isfinitel(x) isfinite(x)
2319# elif defined(HAS_ISFINITEL)
2320# define Perl_isfinitel(x) isfinitel(x)
2321# elif defined(HAS_FINITEL)
2322# define Perl_isfinitel(x) finitel(x)
2323# elif defined(HAS_INFL) && defined(HAS_NANL)
2324# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2325# else
99bf9e32 2326# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2327# endif
2328#endif
2329
a36244b7
JH
2330/* The default is to use Perl's own atof() implementation (in numeric.c).
2331 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2332 * it is however best to use the native implementation of atof.
2333 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2334 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2335 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2336 * you may need to be using a different function than atof! */
a36244b7
JH
2337
2338#ifndef USE_PERL_ATOF
2339# ifndef _UNICOS
2340# define USE_PERL_ATOF
2341# endif
2342#else
2343# if USE_PERL_ATOF == 0
2344# undef USE_PERL_ATOF
2345# endif
2346#endif
2347
2348#ifdef USE_PERL_ATOF
2349# define Perl_atof(s) Perl_my_atof(s)
2350# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2351#else
2352# define Perl_atof(s) (NV)atof(s)
2353# define Perl_atof2(s, n) ((n) = atof(s))
2354#endif
cf2093f6 2355
d460ef45 2356/* Previously these definitions used hardcoded figures.
760ac839
LW
2357 * It is hoped these formula are more portable, although
2358 * no data one way or another is presently known to me.
2359 * The "PERL_" names are used because these calculated constants
2360 * do not meet the ANSI requirements for LONG_MAX, etc., which
2361 * need to be constants acceptable to #if - kja
2362 * define PERL_LONG_MAX 2147483647L
2363 * define PERL_LONG_MIN (-LONG_MAX - 1)
2364 * define PERL ULONG_MAX 4294967295L
2365 */
2366
2367#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2368# include <limits.h>
760ac839 2369#endif
205f51d8 2370/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2371 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2372
99abf803
PP
2373/*
2374 * Try to figure out max and min values for the integral types. THE CORRECT
2375 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2376 * following hacks are used if neither limits.h or values.h provide them:
2377 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2378 * for types < int: (unsigned TYPE)~(unsigned)0
2379 * The argument to ~ must be unsigned so that later signed->unsigned
2380 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2381 * and it must not be smaller than int because ~ does integral promotion.
2382 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2383 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2384 * The latter is a hack which happens to work on some machines but
2385 * does *not* catch any random system, or things like integer types
2386 * with NaN if that is possible.
2387 *
2388 * All of the types are explicitly cast to prevent accidental loss of
2389 * numeric range, and in the hope that they will be less likely to confuse
2390 * over-eager optimizers.
2391 *
2392 */
27d4fb96 2393
99abf803
PP
2394#define PERL_UCHAR_MIN ((unsigned char)0)
2395
2396#ifdef UCHAR_MAX
2397# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2398#else
99abf803
PP
2399# ifdef MAXUCHAR
2400# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2401# else
99abf803 2402# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2403# endif
2404#endif
d460ef45 2405
99abf803
PP
2406/*
2407 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2408 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2409 * depending on local options. Until Configure detects this (or at least
2410 * detects whether the "signed" keyword is available) the CHAR ranges
2411 * will not be included. UCHAR functions normally.
2412 * - kja
2413 */
27d4fb96 2414
99abf803
PP
2415#define PERL_USHORT_MIN ((unsigned short)0)
2416
2417#ifdef USHORT_MAX
2418# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2419#else
99abf803
PP
2420# ifdef MAXUSHORT
2421# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2422# else
ef2f54b0
CB
2423# ifdef USHRT_MAX
2424# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2425# else
2426# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2427# endif
27d4fb96
PP
2428# endif
2429#endif
2430
27d4fb96 2431#ifdef SHORT_MAX
99abf803 2432# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2433#else
2434# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2435# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2436# else
ef2f54b0
CB
2437# ifdef SHRT_MAX
2438# define PERL_SHORT_MAX ((short)SHRT_MAX)
2439# else
2440# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2441# endif
27d4fb96
PP
2442# endif
2443#endif
2444
2445#ifdef SHORT_MIN
99abf803 2446# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2447#else
2448# ifdef MINSHORT
99abf803 2449# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2450# else
ef2f54b0
CB
2451# ifdef SHRT_MIN
2452# define PERL_SHORT_MIN ((short)SHRT_MIN)
2453# else
2454# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2455# endif
27d4fb96
PP
2456# endif
2457#endif
2458
99abf803
PP
2459#ifdef UINT_MAX
2460# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2461#else
99abf803
PP
2462# ifdef MAXUINT
2463# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2464# else
99abf803 2465# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2466# endif
2467#endif
2468
99abf803 2469#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2470
2471#ifdef INT_MAX
99abf803 2472# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2473#else
2474# ifdef MAXINT /* Often used in <values.h> */
99abf803 2475# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2476# else
99abf803 2477# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2478# endif
2479#endif
2480
2481#ifdef INT_MIN
99abf803 2482# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2483#else
2484# ifdef MININT
99abf803 2485# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2486# else
2487# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2488# endif
2489#endif
2490
99abf803
PP
2491#ifdef ULONG_MAX
2492# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2493#else
99abf803
PP
2494# ifdef MAXULONG
2495# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2496# else
99abf803 2497# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2498# endif
2499#endif
2500
99abf803 2501#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2502
760ac839 2503#ifdef LONG_MAX
99abf803 2504# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2505#else
2506# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2507# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2508# else
99abf803 2509# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2510# endif
2511#endif
2512
2513#ifdef LONG_MIN
99abf803 2514# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2515#else
2516# ifdef MINLONG
99abf803 2517# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2518# else
27d4fb96 2519# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2520# endif
2521#endif
2522
d7d93a81 2523#ifdef UV_IS_QUAD
99abf803 2524
99abf803 2525# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2526# define PERL_UQUAD_MIN ((UV)0)
99abf803 2527# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2528# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2529
79072805
LW
2530#endif
2531
ee0007ab 2532typedef MEM_SIZE STRLEN;
450a55e4 2533
79072805
LW
2534typedef struct op OP;
2535typedef struct cop COP;
2536typedef struct unop UNOP;
2537typedef struct binop BINOP;
2538typedef struct listop LISTOP;
2539typedef struct logop LOGOP;
79072805
LW
2540typedef struct pmop PMOP;
2541typedef struct svop SVOP;
7934575e 2542typedef struct padop PADOP;
79072805 2543typedef struct pvop PVOP;
79072805
LW
2544typedef struct loop LOOP;
2545
7aef8e5b 2546#ifdef PERL_CORE
8be227ab
FC
2547typedef struct opslab OPSLAB;
2548typedef struct opslot OPSLOT;
2549#endif
2550
52db365a 2551typedef struct block_hooks BHK;
1830b3d9 2552typedef struct custom_op XOP;
52db365a 2553
cd1541b2
NC
2554typedef struct interpreter PerlInterpreter;
2555
d2b3f365 2556/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2557#if defined(__sgi)
d2b3f365 2558# define STRUCT_SV perl_sv
b8d3c5db
JH
2559#else
2560# define STRUCT_SV sv
2561#endif
2562typedef struct STRUCT_SV SV;
79072805
LW
2563typedef struct av AV;
2564typedef struct hv HV;
2565typedef struct cv CV;
d2f13c59 2566typedef struct p5rx REGEXP;
79072805 2567typedef struct gp GP;
0c30d9ec 2568typedef struct gv GV;
8990e307 2569typedef struct io IO;
c09156bb 2570typedef struct context PERL_CONTEXT;
79072805
LW
2571typedef struct block BLOCK;
2572
2573typedef struct magic MAGIC;
2574typedef struct xpv XPV;
2575typedef struct xpviv XPVIV;
ff68c719 2576typedef struct xpvuv XPVUV;
79072805
LW
2577typedef struct xpvnv XPVNV;
2578typedef struct xpvmg XPVMG;
2579typedef struct xpvlv XPVLV;
d361b004 2580typedef struct xpvinvlist XINVLIST;
79072805
LW
2581typedef struct xpvav XPVAV;
2582typedef struct xpvhv XPVHV;
2583typedef struct xpvgv XPVGV;
2584typedef struct xpvcv XPVCV;
2585typedef struct xpvbm XPVBM;
2586typedef struct xpvfm XPVFM;
8990e307 2587typedef struct xpvio XPVIO;
79072805
LW
2588typedef struct mgvtbl MGVTBL;
2589typedef union any ANY;
5f7fde29
GS
2590typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2591typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2592typedef struct clone_params CLONE_PARAMS;
2593
35e035cc 2594/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2595 * so hide the type. */
2596typedef struct padlist PADLIST;
67634234 2597typedef AV PAD;
35e035cc
FC
2598typedef AV PADNAMELIST;
2599typedef SV PADNAME;
67634234 2600
13b0f67d
DM
2601/* enable PERL_NEW_COPY_ON_WRITE by default */
2602#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2603# define PERL_NEW_COPY_ON_WRITE
2604#endif
07d01d6e 2605
db2c6cb3
FC
2606#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2607# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2608# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2609# else
2610# define PERL_ANY_COW
2611# endif
9f351b45
DM
2612#else
2613# define PERL_SAWAMPERSAND
db2c6cb3
FC
2614#endif
2615
378cc40b 2616#include "handy.h"
a0d0e21e 2617
6b8eaf93 2618#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2619# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2620# define USE_64_BIT_RAWIO /* implicit */
2621# endif
4564133c
JH
2622#endif
2623
6b8eaf93
JH
2624/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2625 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2626 * however, because operating systems like to do that themself. */
2627#ifndef FSEEKSIZE
2628# ifdef HAS_FSEEKO
2629# define FSEEKSIZE LSEEKSIZE
2630# else
2631# define FSEEKSIZE LONGSIZE
d460ef45 2632# endif
6b8eaf93
JH
2633#endif
2634
2635#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2636# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2637# define USE_64_BIT_STDIO /* implicit */
2638# endif
2639#endif
4564133c 2640
09458382 2641#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2642# ifdef HAS_OFF64_T
2643# undef Off_t
2644# define Off_t off64_t
2645# undef LSEEKSIZE
2646# define LSEEKSIZE 8
5ff3f7a4 2647# endif
d9b3e12d
JH
2648/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2649 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2650 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2651# if defined(USE_OPEN64)
2652# define open open64
5ff3f7a4 2653# endif
d9b3e12d
JH
2654# if defined(USE_LSEEK64)
2655# define lseek lseek64
6b8eaf93
JH
2656# else
2657# if defined(USE_LLSEEK)
2658# define lseek llseek
2659# endif
d9b3e12d
JH
2660# endif
2661# if defined(USE_STAT64)
2662# define stat stat64
2663# endif
2664# if defined(USE_FSTAT64)
2665# define fstat fstat64
2666# endif
2667# if defined(USE_LSTAT64)
2668# define lstat lstat64
2669# endif
2670# if defined(USE_FLOCK64)
2671# define flock flock64
2672# endif
2673# if defined(USE_LOCKF64)
2674# define lockf lockf64
2675# endif
2676# if defined(USE_FCNTL64)
2677# define fcntl fcntl64
2678# endif
2679# if defined(USE_TRUNCATE64)
2680# define truncate truncate64
2681# endif
2682# if defined(USE_FTRUNCATE64)
2683# define ftruncate ftruncate64
2684# endif
2685#endif
2686
2687#ifdef USE_64_BIT_STDIO
2688# ifdef HAS_FPOS64_T
2689# undef Fpos_t
2690# define Fpos_t fpos64_t
2691# endif
2692/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2693 * will trigger defines like the ones below. Some 64-bit environments,
2694 * however, do not. */
2695# if defined(USE_FOPEN64)
2696# define fopen fopen64
2697# endif
2698# if defined(USE_FSEEK64)
6b8eaf93 2699# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2700# endif
2701# if defined(USE_FTELL64)
6b8eaf93 2702# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2703# endif
2704# if defined(USE_FSETPOS64)
2705# define fsetpos fsetpos64
2706# endif
2707# if defined(USE_FGETPOS64)
2708# define fgetpos fgetpos64
2709# endif
2710# if defined(USE_TMPFILE64)
2711# define tmpfile tmpfile64
2712# endif
2713# if defined(USE_FREOPEN64)
2714# define freopen freopen64
5ff3f7a4
GS
2715# endif
2716#endif
2717
e37778c2 2718#if defined(OS2)
2c2d71f5
JH
2719# include "iperlsys.h"
2720#endif
2721
748a9306 2722#ifdef DOSISH
19848b3f
JH
2723# if defined(OS2)
2724# include "os2ish.h"
2725# else
2726# include "dosish.h"
2727# endif
009819bb 2728#elif defined(VMS)
748a9306 2729# include "vmsish.h"
009819bb 2730#elif defined(PLAN9)
19848b3f 2731# include "./plan9/plan9ish.h"
009819bb 2732#elif defined(__VOS__)
196918b0
PG
2733# ifdef __GNUC__
2734# include "./vos/vosish.h"
2735# else
2736# include "vos/vosish.h"
2737# endif
009819bb 2738#elif defined(__SYMBIAN32__)
27da23d5 2739# include "symbian/symbianish.h"
009819bb 2740#elif defined(__HAIKU__)
df00ff3b 2741# include "haiku/haikuish.h"
009819bb 2742#else
19848b3f 2743# include "unixish.h"
13b6e58c
JH
2744#endif
2745
2946a158
JH
2746/* NSIG logic from Configure --> */
2747/* Strange style to avoid deeply-nested #if/#else/#endif */
2748#ifndef NSIG
2749# ifdef _NSIG
2750# define NSIG (_NSIG)
2751# endif
2752#endif
2753
2754#ifndef NSIG
2755# ifdef SIGMAX
2756# define NSIG (SIGMAX+1)
2757# endif
2758#endif
2759
2760#ifndef NSIG
2761# ifdef SIG_MAX
2762# define NSIG (SIG_MAX+1)
2763# endif
2764#endif
2765
2766#ifndef NSIG
2767# ifdef _SIG_MAX
2768# define NSIG (_SIG_MAX+1)
2769# endif
2770#endif
2771
2772#ifndef NSIG
2773# ifdef MAXSIG
2774# define NSIG (MAXSIG+1)
2775# endif
2776#endif
2777
2778#ifndef NSIG
2779# ifdef MAX_SIG
2780# define NSIG (MAX_SIG+1)
2781# endif
2782#endif
2783
2784#ifndef NSIG
2785# ifdef SIGARRAYSIZE
2786# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2787# endif
2788#endif
2789
2790#ifndef NSIG
2791# ifdef _sys_nsig
2792# define NSIG (_sys_nsig) /* Solaris 2.5 */
2793# endif
2794#endif
2795
2796/* Default to some arbitrary number that's big enough to get most
2797 of the common signals.
2798*/
2799#ifndef NSIG
2800# define NSIG 50
2801#endif
2802/* <-- NSIG logic from Configure */
2803
13b6e58c
JH
2804#ifndef NO_ENVIRON_ARRAY
2805# define USE_ENVIRON_ARRAY
2806#endif
32f822de 2807
c77b533b
JH
2808/*
2809 * initialise to avoid floating-point exceptions from overflow, etc
2810 */
2811#ifndef PERL_FPU_INIT
2812# ifdef HAS_FPSETMASK
2813# if HAS_FLOATINGPOINT_H
2814# include <floatingpoint.h>
2815# endif
ad3a8c67
NC
2816/* Some operating systems have this as a macro, which in turn expands to a comma
2817 expression, and the last sub-expression is something that gets calculated,
2818 and then they have the gall to warn that a value computed is not used. Hence
2819 cast to void. */
2820# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2821# else
2f42fcb0 2822# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2823# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2824# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2825# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2826# else
2827# define PERL_FPU_INIT
2f42fcb0 2828
7014c407 2829# endif
c77b533b
JH
2830# endif
2831#endif
b35112e7
CS
2832#ifndef PERL_FPU_PRE_EXEC
2833# define PERL_FPU_PRE_EXEC {
2834# define PERL_FPU_POST_EXEC }
2835#endif
c77b533b 2836
cbec8ebe
DM
2837#ifndef PERL_SYS_INIT3_BODY
2838# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2839#endif
2840
eb533572 2841/*
dcccc8ff
KW
2842=head1 Miscellaneous Functions
2843
4ad9e498 2844=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2845Provides system-specific tune up of the C runtime environment necessary to
72d33970 2846run Perl interpreters. This should be called only once, before creating
eb533572
DM
2847any Perl interpreters.
2848
4ad9e498 2849=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2850Provides system-specific tune up of the C runtime environment necessary to
72d33970 2851run Perl interpreters. This should be called only once, before creating
eb533572
DM
2852any Perl interpreters.
2853
2854=for apidoc Am|void|PERL_SYS_TERM|
2855Provides system-specific clean up of the C runtime environment after
72d33970 2856running Perl interpreters. This should be called only once, after
eb533572
DM
2857freeing any remaining Perl interpreters.
2858
2859=cut
2860 */
2861
cbec8ebe
DM
2862#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2863#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2864#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2865
be708cc0
JH
2866#ifndef PERL_WRITE_MSG_TO_CONSOLE
2867# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2868#endif
2869
0f31cffe
GS
2870#ifndef MAXPATHLEN
2871# ifdef PATH_MAX
b990c8b2
JH
2872# ifdef _POSIX_PATH_MAX
2873# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2874/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2875 * included the null byte or not. Later amendments of POSIX,
2876 * XPG4, the Austin Group, and the Single UNIX Specification
2877 * all explicitly include the null byte in the PATH_MAX.
2878 * Ditto for _POSIX_PATH_MAX. */
2879# define MAXPATHLEN PATH_MAX
b990c8b2 2880# else
09448d78 2881# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2882# endif
2883# else
2884# define MAXPATHLEN (PATH_MAX+1)
2885# endif
0f31cffe 2886# else
d552bce8 2887# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2888# endif
2889#endif
2890
c80263a8
SH
2891/* In case Configure was not used (we are using a "canned config"
2892 * such as Win32, or a cross-compilation setup, for example) try going
2893 * by the gcc major and minor versions. One useful URL is
2894 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2895 * but contrary to this information warn_unused_result seems
2896 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2897 * Also, when building extensions with an installed perl, this allows
2898 * the user to upgrade gcc and get the right attributes, rather than
2899 * relying on the list generated at Configure time. --AD
c80263a8
SH
2900 * Set these up now otherwise we get confused when some of the <*thread.h>
2901 * includes below indirectly pull in <perlio.h> (which needs to know if we
2902 * have HASATTRIBUTE_FORMAT).
2903 */
2904
4d7c7898 2905#ifndef PERL_MICRO
fc2007d4 2906#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2907# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2908# define HASATTRIBUTE_DEPRECATED
2909# endif
c80263a8
SH
2910# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2911# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2912# if defined __MINGW32__
2913# define PRINTF_FORMAT_NULL_OK
2914# endif
c80263a8
SH
2915# endif
2916# if __GNUC__ >= 3 /* 3.0 -> */
2917# define HASATTRIBUTE_MALLOC
2918# endif
2919# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2920# define HASATTRIBUTE_NONNULL
2921# endif
2922# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2923# define HASATTRIBUTE_NORETURN
2924# endif
2925# if __GNUC__ >= 3 /* gcc 3.0 -> */
2926# define HASATTRIBUTE_PURE
2927# endif
42bf5550 2928# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
2929# define HASATTRIBUTE_UNUSED
2930# endif
d324fe49
AD
2931# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2932# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2933# endif
c80263a8
SH
2934# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2935# define HASATTRIBUTE_WARN_UNUSED_RESULT
2936# endif
2937#endif
00f254e2 2938#endif /* #ifndef PERL_MICRO */
c80263a8 2939
3db8f154 2940/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2941 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
2942 * this results in many functions being undeclared which bothers C++
2943 * May make sense to have threads after "*ish.h" anyway
2944 */
2945
3db8f154 2946#if defined(USE_ITHREADS)
2986a63f
JH
2947# ifdef NETWARE
2948# include <nw5thread.h>
2949# else
32f822de
GS
2950# ifdef WIN32
2951# include <win32thread.h>
2952# else
dd96f567
IZ
2953# ifdef OS2
2954# include "os2thread.h"
2955# else
7f3d1cf1 2956# ifdef I_MACH_CTHREADS
bdd66968 2957# include <mach/cthreads.h>
7f3d1cf1
BH
2958typedef cthread_t perl_os_thread;
2959typedef mutex_t perl_mutex;
2960typedef condition_t perl_cond;
2961typedef void * perl_key;
2962# else /* Posix threads */
1f5ae88c
JH
2963# ifdef I_PTHREAD
2964# include <pthread.h>
2965# endif
7f3d1cf1
BH
2966typedef pthread_t perl_os_thread;
2967typedef pthread_mutex_t perl_mutex;
2968typedef pthread_cond_t perl_cond;
2969typedef pthread_key_t perl_key;
2970# endif /* I_MACH_CTHREADS */
dd96f567 2971# endif /* OS2 */
32f822de 2972# endif /* WIN32 */
ef4abe76 2973# endif /* NETWARE */
3db8f154 2974#endif /* USE_ITHREADS */
c5be433b 2975
66a93824 2976#if defined(WIN32)
1feb2720 2977# include "win32.h"
c5be433b
GS
2978#endif
2979
2986a63f
JH
2980#ifdef NETWARE
2981# include "netware.h"
2982#endif
2983
e5218da5 2984#define STATUS_UNIX PL_statusvalue
68dc0745 2985#ifdef VMS
6b88bc9c 2986# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
2987/*
2988 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2989 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
2990 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2991 * be updated also.
2992 */
2993# include <stsdef.h>
2994# include <ssdef.h>
2995/* Presume this because if VMS changes it, it will require a new
2996 * set of APIs for waiting on children for binary compatibility.
2997 */
2998# define child_offset_bits (8)
2999# ifndef C_FAC_POSIX
3000# define C_FAC_POSIX 0x35A000
3001# endif
3002
3003/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3004 * platform from the existing UNIX or Native status values.
3005 */
3006
37038d91 3007# define STATUS_EXIT \
7a7fd8e0
JM
3008 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3009 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3010
7a7fd8e0 3011
fb38d079
JM
3012/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3013 * exit code and shifts the UNIX value over the correct number of bits to
3014 * be a child status. Usually the number of bits is 8, but that could be
3015 * platform dependent. The NATIVE status code is presumed to have either
3016 * from a child process.
7a7fd8e0
JM
3017 */
3018
fb38d079
JM
3019/* This is complicated. The child processes return a true native VMS
3020 status which must be saved. But there is an assumption in Perl that
3021 the UNIX child status has some relationship to errno values, so
00f254e2 3022 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3023 In order to get the string translation correct, for the error, errno
3024 must be EVMSERR, but that generates a different text message
3025 than what the test programs are expecting. So an errno value must
3026 be derived from the native status value when an error occurs.
3027 That will hide the true native status message. With this version of
3028 perl, the true native child status can always be retrieved so that
3029 is not a problem. But in this case, Pl_statusvalue and errno may
3030 have different values in them.
3031 */
7a7fd8e0 3032
fb38d079 3033# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3034 STMT_START { \
2fbb330f
JM
3035 I32 evalue = (I32)n; \
3036 if (evalue == EVMSERR) { \
3037 PL_statusvalue_vms = vaxc$errno; \
3038 PL_statusvalue = evalue; \
7a7fd8e0 3039 } else { \
2fbb330f 3040 PL_statusvalue_vms = evalue; \
fb38d079 3041 if (evalue == -1) { \
3280af22 3042 PL_statusvalue = -1; \
7a7fd8e0
JM
3043 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3044 } else \
fb38d079 3045 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3046 set_vaxc_errno(evalue); \
fb38d079
JM
3047 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3048 set_errno(EVMSERR); \
3049 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3050 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3051 } \
68dc0745 3052 } STMT_END
7a7fd8e0 3053
68dc0745 3054# ifdef VMSISH_STATUS
e5218da5 3055# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3056# else
e5218da5 3057# define STATUS_CURRENT STATUS_UNIX
68dc0745 3058# endif
7a7fd8e0
JM
3059
3060 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3061 * the NATIVE status to an equivalent value. Can not be used to translate
3062 * exit code values as exit code values are not guaranteed to have any
3063 * relationship at all to errno values.
3064 * This is used when Perl is forcing errno to have a specific value.
3065 */
e5218da5 3066# define STATUS_UNIX_SET(n) \
68dc0745 3067 STMT_START { \
7a7fd8e0 3068 I32 evalue = (I32)n; \
0968cdad 3069 PL_statusvalue = evalue; \
3280af22 3070 if (PL_statusvalue != -1) { \
0968cdad
JM
3071 if (PL_statusvalue != EVMSERR) { \
3072 PL_statusvalue &= 0xFFFF; \
3073 if (MY_POSIX_EXIT) \
3074 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3075 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3076 } \
3077 else { \
3078 PL_statusvalue_vms = vaxc$errno; \
3079 } \
68dc0745 3080 } \
0968cdad
JM
3081 else PL_statusvalue_vms = SS$_ABORT; \
3082 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3083 } STMT_END
3084
3085 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3086 * the NATIVE error status based on it.
3087 *
3088 * When in the default mode to comply with the Perl VMS documentation,
3089 * 0 is a success and any other code sets the NATIVE status to a failure
3090 * code of SS$_ABORT.
fb38d079
JM
3091 *
3092 * In the new POSIX EXIT mode, native status will be set so that the
3093 * actual exit code will can be retrieved by the calling program or
3094 * shell.
3095 *
3096 * If the exit code is not clearly a UNIX parent or child exit status,
3097 * it will be passed through as a VMS status.
7a7fd8e0
JM
3098 */
3099
fb38d079 3100# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3101 STMT_START { \
3102 I32 evalue = (I32)n; \
3103 PL_statusvalue = evalue; \
e08e1e1d
JM
3104 if (MY_POSIX_EXIT) { \
3105 if (evalue <= 0xFF00) { \
3106 if (evalue > 0xFF) \
3107 evalue = (evalue >> child_offset_bits) & 0xFF; \
3108 PL_statusvalue_vms = \
3109 (C_FAC_POSIX | (evalue << 3 ) | \
3110 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3111 } else /* forgive them Perl, for they have sinned */ \
3112 PL_statusvalue_vms = evalue; \
3113 } else { \
3114 if (evalue == 0) \
3115 PL_statusvalue_vms = SS$_NORMAL; \
3116 else if (evalue <= 0xFF00) \
3117 PL_statusvalue_vms = SS$_ABORT; \
3118 else { /* forgive them Perl, for they have sinned */ \
3119 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3120 else PL_statusvalue_vms = vaxc$errno; \
3121 /* And obviously used a VMS status value instead of UNIX */ \
3122 PL_statusvalue = EVMSERR; \
3123 } \
3124 set_vaxc_errno(PL_statusvalue_vms); \
3125 } \
68dc0745 3126 } STMT_END
fb38d079 3127
e08e1e1d 3128
6ac6a52b
JM
3129 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3130 * and sets the NATIVE error status based on it. This special case
3131 * is needed to maintain compatibility with past VMS behavior.
3132 *
3133 * In the default mode on VMS, this number is passed through as
3134 * both the NATIVE and UNIX status. Which makes it different
3135 * that the STATUS_UNIX_EXIT_SET.
3136 *
3137 * In the new POSIX EXIT mode, native status will be set so that the
3138 * actual exit code will can be retrieved by the calling program or
3139 * shell.
3140 *
1a3aec58
JM
3141 * A POSIX exit code is from 0 to 255. If the exit code is higher
3142 * than this, it needs to be assumed that it is a VMS exit code and
3143 * passed through.
6ac6a52b
JM
3144 */
3145
3146# define STATUS_EXIT_SET(n) \
3147 STMT_START { \
3148 I32 evalue = (I32)n; \
3149 PL_statusvalue = evalue; \
3150 if (MY_POSIX_EXIT) \
1a3aec58
JM
3151 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3152 PL_statusvalue_vms = \
3153 (C_FAC_POSIX | (evalue << 3 ) | \
3154 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3155 else \
3156 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3157 set_vaxc_errno(PL_statusvalue_vms); \
3158 } STMT_END
3159
fb38d079
JM
3160
3161 /* This macro forces a success status */
7a7fd8e0
JM
3162# define STATUS_ALL_SUCCESS \
3163 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3164
3165 /* This macro forces a failure status */
7a7fd8e0
JM
3166# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3167 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3168 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3169
68dc0745 3170#else
e5218da5 3171# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3172# if defined(WCOREDUMP)
37038d91 3173# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3174 STMT_START { \
3175 PL_statusvalue_posix = (n); \
3176 if (PL_statusvalue_posix == -1) \
3177 PL_statusvalue = -1; \
3178 else { \
3179 PL_statusvalue = \
3180 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3181 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3182 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3183 } \
3184 } STMT_END
3185# elif defined(WIFEXITED)
37038d91 3186# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3187 STMT_START { \
3188 PL_statusvalue_posix = (n); \
3189 if (PL_statusvalue_posix == -1) \
3190 PL_statusvalue = -1; \
3191 else { \
3192 PL_statusvalue = \
3193 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3194 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3195 } \
3196 } STMT_END
3197# else
37038d91 3198# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3199 STMT_START { \
3200 PL_statusvalue_posix = (n); \
3201 if (PL_statusvalue_posix == -1) \
3202 PL_statusvalue = -1; \
3203 else { \
3204 PL_statusvalue = \
3205 PL_statusvalue_posix & 0xFFFF; \
3206 } \
3207 } STMT_END
3208# endif
3209# define STATUS_UNIX_SET(n) \
68dc0745 3210 STMT_START { \
3280af22
NIS
3211 PL_statusvalue = (n); \
3212 if (PL_statusvalue != -1) \
3213 PL_statusvalue &= 0xFFFF; \
68dc0745 3214 } STMT_END
7a7fd8e0 3215# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3216# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3217# define STATUS_CURRENT STATUS_UNIX
37038d91 3218# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3219# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3220# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3221#endif
3222
cc3604b1
GS
3223/* flags in PL_exit_flags for nature of exit() */
3224#define PERL_EXIT_EXPECTED 0x01
31d77e54 3225#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3226#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3227#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3228
b79b76e0 3229#ifndef PERL_CORE
a7cb1f99 3230/* format to use for version numbers in file/directory names */
273cf8d1 3231/* XXX move to Configure? */
b79b76e0
NC
3232/* This was only ever used for the current version, and that can be done at
3233 compile time, as PERL_FS_VERSION, so should we just delete it? */
3234# ifndef PERL_FS_VER_FMT
3235# define PERL_FS_VER_FMT "%d.%d.%d"
3236# endif
3237#endif
3238
3239#ifndef PERL_FS_VERSION
3240# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3241#endif
3242
45bc9206 3243/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3244 * performance issue, so we allow people to disable it. Also, if
3245 * we are using stdio, there are broken implementations of fflush(NULL)
3246 * out there, Solaris being the most prominent.
45bc9206
GS
3247 */
3248#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3249# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3250# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3251# else
3252# ifdef FFLUSH_ALL
3253# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3254# else
c5be433b 3255# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3256# endif
66fe083f 3257# endif
45bc9206
GS
3258#endif
3259
7766f137
GS
3260#ifndef PERL_WAIT_FOR_CHILDREN
3261# define PERL_WAIT_FOR_CHILDREN NOOP
3262#endif
3263
ba869deb 3264/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3265#ifndef PERL_SET_INTERP
3266# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3267#endif
3268
3269#ifndef PERL_GET_INTERP
3270# define PERL_GET_INTERP (PL_curinterp)
3271#endif
3272
54aff467 3273#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3274# ifdef MULTIPLICITY
ba869deb 3275# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3276# endif
ba869deb
GS
3277# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3278#endif
3279
00f254e2 3280/*
8896765a 3281 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3282 All that is required is that the perl source does not
00f254e2
KW
3283 use "%-p" or "%-<number>p" or "%<number>p" formats.
3284 These formats will still work in perl code.
486ec47a 3285 See comments in sv.c for further details.
8896765a 3286
8896765a 3287 Robin Barker 2005-07-14
f46d31f2 3288
00f254e2 3289 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3290*/
8896765a
RB
3291
3292#ifndef SVf_
63ce7bf0 3293# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3294#endif
3295
8896765a 3296#ifndef SVf
104abab4 3297# define SVf "-p"
d2560b70
RB
3298#endif
3299
014ead4b 3300#ifndef SVf32
8896765a 3301# define SVf32 SVf_(32)
014ead4b
RB
3302#endif
3303
3304#ifndef SVf256
8896765a
RB
3305# define SVf256 SVf_(256)
3306#endif
3307
be2597df
MHM
3308#define SVfARG(p) ((void*)(p))
3309
20023040
FC
3310#ifndef HEKf
3311# define HEKf "2p"
3312#endif
3313
b8fa5213
FC
3314/* Not ideal, but we cannot easily include a number in an already-numeric
3315 * format sequence. */
3316#ifndef HEKf256
3317# define HEKf256 "3p"
3318#endif
3319
20023040
FC
3320#define HEKfARG(p) ((void*)(p))
3321
b17a0679
FC
3322/* Takes three arguments: is_utf8, length, str */
3323#ifndef UTF8f
61608bb7 3324# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3325#endif
3326#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3327
f46d31f2 3328#ifdef PERL_CORE
486ec47a 3329/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3330# undef UVf
3331#else
170cd9e9
NC
3332# ifndef UVf
3333# define UVf UVuf
3334# endif
d2560b70
RB
3335#endif
3336
fcdf39cf
RGS
3337#ifdef HASATTRIBUTE_DEPRECATED
3338# define __attribute__deprecated__ __attribute__((deprecated))
3339#endif
0dbb1585
AL
3340#ifdef HASATTRIBUTE_FORMAT
3341# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3342#endif
3343#ifdef HASATTRIBUTE_MALLOC
77785eea 3344# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3345#endif
0dbb1585 3346#ifdef HASATTRIBUTE_NONNULL
abb2c242 3347# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3348#endif
0dbb1585 3349#ifdef HASATTRIBUTE_NORETURN
abb2c242 3350# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3351#endif
0dbb1585 3352#ifdef HASATTRIBUTE_PURE
abb2c242 3353# define __attribute__pure__ __attribute__((pure))
f22be1b8 3354#endif
0dbb1585
AL
3355#ifdef HASATTRIBUTE_UNUSED
3356# define __attribute__unused__ __attribute__((unused))
3357#endif
3358#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3359# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3360#endif
3361
0dbb1585 3362/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3363#ifndef __attribute__deprecated__
3364# define __attribute__deprecated__
3365#endif
0dbb1585
AL
3366#ifndef __attribute__format__
3367# define __attribute__format__(x,y,z)
3368#endif
f22be1b8 3369#ifndef __attribute__malloc__
abb2c242 3370# define __attribute__malloc__
f22be1b8
JH
3371#endif
3372#ifndef __attribute__nonnull__
abb2c242 3373# define __attribute__nonnull__(a)
f22be1b8
JH
3374#endif
3375#ifndef __attribute__noreturn__
abb2c242 3376# define __attribute__noreturn__
f22be1b8
JH
3377#endif
3378#ifndef __attribute__pure__
abb2c242 3379# define __attribute__pure__
f22be1b8 3380#endif
0dbb1585
AL
3381#ifndef __attribute__unused__
3382# define __attribute__unused__
3383#endif
f22be1b8 3384#ifndef __attribute__warn_unused_result__
abb2c242
JH
3385# define __attribute__warn_unused_result__
3386#endif
3387
cd13e623
JH
3388#if defined(DEBUGGING) && defined(I_ASSERT)
3389# include <assert.h>
3390#endif
3391
0dbb1585
AL
3392/* For functions that are marked as __attribute__noreturn__, it's not
3393 appropriate to call return. In either case, include the lint directive.
3394 */
3395#ifdef HASATTRIBUTE_NORETURN
ae103e09 3396# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3397#else
ae103e09 3398# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3399#endif
3400
cdfeb707
RB
3401/* Some OS warn on NULL format to printf */
3402#ifdef PRINTF_FORMAT_NULL_OK
3403# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3404#else
00f254e2 3405# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3406#endif
3407
635aebb7 3408#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3409# define EXPECT(expr,val) __builtin_expect(expr,val)
3410#else
3411# define EXPECT(expr,val) (expr)
3412#endif
6d5abc62
NC
3413#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3414#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3415#ifdef HAS_BUILTIN_CHOOSE_EXPR
3416/* placeholder */
3417#endif
b37c2d43 3418
ae103e09
DD
3419
3420#ifndef __has_builtin
3421# define __has_builtin(x) 0 /* not a clang style compiler */
3422#endif
3423
3424/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3425 hint to a compiler about a statement of fact in a function call free
3426 expression, which allows the compiler to generate better machine code.
3427 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3428 the control path is unreachable. In a for loop, ASSUME can be used to hint
3429 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3430 intrinsic function, see its documents for more details.
3431*/
3432
3433#ifndef DEBUGGING
3434# if __has_builtin(__builtin_unreachable) \
3435 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 5) /* 4.5 -> */
3436# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3437# elif defined(_MSC_VER)
3438# define ASSUME(x) __assume(x)
3439# elif defined(__ARMCC_VERSION) /* untested */
3440# define ASSUME(x) __promise(x)
3441# else
3442/* a random compiler might define assert to its own special optimization token
3443 so pass it through to C lib as a last resort */
3444# define ASSUME(x) assert(x)
3445# endif
3446#else
3447# define ASSUME(x) assert(x)
3448#endif
3449
3450#define NOT_REACHED ASSUME(0)
3451
3fc1aec6
PP
3452/* Some unistd.h's give a prototype for pause() even though
3453 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3454 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3455*/
3456#ifdef HAS_PAUSE
3457#define Pause pause
3458#else
3459#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3460#endif
3461
3462#ifndef IOCPARM_LEN
3463# ifdef IOCPARM_MASK
61f1c44b 3464 /* on BSDish systems we're safe */
748a9306
LW
3465# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3466# else
61f1c44b 3467# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3468 /* on Linux systems we're safe; except when we're not [perl #38223] */
3469# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3470# else
748a9306 3471 /* otherwise guess at what's safe */
61f1c44b
JVD
3472# define IOCPARM_LEN(x) 256
3473# endif
748a9306 3474# endif
a0d0e21e
LW
3475#endif
3476
1761cee5 3477#if defined(__CYGWIN__)
521e0776
GS
3478/* USEMYBINMODE
3479 * This symbol, if defined, indicates that the program should
16fe6d59 3480 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3481 * that a file is in "binary" mode -- that is, that no translation
3482 * of bytes occurs on read or write operations.
3483 */
36894f0b 3484# define USEMYBINMODE /**/
77a40698 3485# include <io.h> /* for setmode() prototype */
16fe6d59 3486# define my_binmode(fp, iotype, mode) \
77a40698 3487 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3488#endif
3489
88d10794
JH
3490#ifdef __CYGWIN__
3491void init_os_extras(void);
3492#endif
3493
cea2e8a9
GS
3494#ifdef UNION_ANY_DEFINITION
3495UNION_ANY_DEFINITION;
3496#else
3497union any {
3498 void* any_ptr;
3499 I32 any_i32;
ae103e09 3500 U32 any_u32;
cea2e8a9 3501 IV any_iv;
c6bf6a65 3502 UV any_uv;
cea2e8a9 3503 long any_long;
9febdf04 3504 bool any_bool;
c76ac1ee 3505 void (*any_dptr) (void*);
acfe0abc 3506 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3507};
3508#endif
3509
acfe0abc 3510typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3511
3512#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3513#define FILTER_DATA(idx) \
3514 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3515#define FILTER_ISREADER(idx) \
3516 (PL_parser && PL_parser->rsfp_filters \
3517 && idx >= AvFILLp(PL_parser->rsfp_filters))
3518#define PERL_FILTER_EXISTS(i) \
3519 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3520 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3521
c5078cac
JH
3522#if defined(_AIX) && !defined(_AIX43)
3523#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3524/* We cannot include <crypt.h> to get the struct crypt_data
3525 * because of setkey prototype problems when threading */
3526typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3527 /* From OSF, Not needed in AIX
3528 char C[28], D[28];
3529 */
3530 char E[48];
3531 char KS[16][48];
3532 char block[66];
3533 char iobuf[16];
3534} CRYPTD;
3535#endif /* threading */
3536#endif /* AIX */
3537
e37778c2 3538#if !defined(OS2)
2c2d71f5
JH
3539# include "iperlsys.h"
3540#endif
504f80c1 3541
9c12f1e5 3542#ifdef __LIBCATAMOUNT__
00f254e2 3543#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3544#undef HAS_GROUP
3545#define FAKE_BIT_BUCKET
3546#endif
3547
d10dc2ae
JH
3548/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3549 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3550 * defined by Configure, despite their names being similar to the
3551 * other defines like USE_ITHREADS. Configure in fact knows nothing
3552 * about the randomised hashes. Therefore to enable/disable the hash
3553 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3554#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3555# define USE_HASH_SEED
504f80c1
JH
3556#endif
3557
598921a7
NC
3558/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3559 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3560 * it's not really needed.
3561 */
3562#if defined(WIN32)
3563# define YYTOKENTYPE
3564#endif
3565#include "perly.h"
3566
598921a7 3567
654eccd5
JD
3568/* macros to define bit-fields in structs. */
3569#ifndef PERL_BITFIELD8
3570# define PERL_BITFIELD8 unsigned
3571#endif
3572#ifndef PERL_BITFIELD16
3573# define PERL_BITFIELD16 unsigned
3574#endif
3575#ifndef PERL_BITFIELD32
3576# define PERL_BITFIELD32 unsigned
3577#endif
3578
79072805 3579#include "sv.h"
288b8c02 3580#include "regexp.h"
378cc40b 3581#include "util.h"
8d063cd8 3582#include "form.h"
79072805 3583#include "gv.h"
dd2155a4 3584#include "pad.h"
79072805 3585#include "cv.h"
abdd5c84 3586#include "opnames.h"
79072805 3587#include "op.h"
b3ca2e83 3588#include "hv.h"
79072805
LW
3589#include "cop.h"
3590#include "av.h"
79072805
LW
3591#include "mg.h"
3592#include "scope.h"
4438c4b7 3593#include "warnings.h"
a0ed51b3 3594#include "utf8.h"
8d063cd8 3595
0d7d409d
DM
3596/* these would be in doio.h if there was such a file */
3597#define my_stat() my_stat_flags(SV_GMAGIC)
3598#define my_lstat() my_lstat_flags(SV_GMAGIC)
3599
20f4945e 3600/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3601#undef _XPV_HEAD
3602#undef _XPVMG_HEAD
3603#undef _XPVCV_COMMON
7fae4e64
GS
3604
3605typedef struct _sublex_info SUBLEXINFO;
3606struct _sublex_info {
651b5b28
NC
3607 U8 super_state; /* lexer state to save */
3608 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3609 OP *sub_op; /* "lex_op" to use */
7cc34111 3610 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3611};
3612
199e78b7
DM
3613#include "parser.h"
3614
455ece5e 3615typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3616
2260ab51
KW
3617#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3618
3619/* These have to be predeclared, as they are used in proto.h which is #included
3620 * before their definitions in regcomp.h. */
3621
3622struct scan_data_t;
7dcac5f6
KW
3623typedef struct regnode_charclass regnode_charclass;
3624
2260ab51 3625struct regnode_charclass_class;
d1d040e5
KW
3626
3627/* A hopefully less confusing name. The sub-classes are all Posix classes only
3628 * used under /l matching */
3629typedef struct regnode_charclass_class regnode_charclass_posixl;
3630
b8f7bb16 3631typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW
3632typedef struct RExC_state_t RExC_state_t;
3633struct _reg_trie_data;
76e3520e 3634
2260ab51
KW
3635#endif
3636
5f7fde29
GS
3637struct ptr_tbl_ent {
3638 struct ptr_tbl_ent* next;
53c1dcc0 3639 const void* oldval;
5f7fde29 3640 void* newval;
d18c6117
GS
3641};
3642
5f7fde29
GS
3643struct ptr_tbl {
3644 struct ptr_tbl_ent** tbl_ary;
3645 UV tbl_max;
3646 UV tbl_items;
db93c0c4
NC
3647 struct ptr_tbl_arena *tbl_arena;
3648 struct ptr_tbl_ent *tbl_arena_next;
3649 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS
3650};
3651
fe14fcc3
LW
3652#if defined(htonl) && !defined(HAS_HTONL)
3653#define HAS_HTONL
ae986130 3654#endif
fe14fcc3
LW
3655#if defined(htons) && !defined(HAS_HTONS)
3656#define HAS_HTONS
ae986130 3657#endif
fe14fcc3
LW
3658#if defined(ntohl) && !defined(HAS_NTOHL)
3659#define HAS_NTOHL
ae986130 3660#endif
fe14fcc3
LW
3661#if defined(ntohs) && !defined(HAS_NTOHS)
3662#define HAS_NTOHS
ae986130 3663#endif
fe14fcc3 3664#ifndef HAS_HTONL
fe14fcc3
LW
3665#define HAS_HTONS
3666#define HAS_HTONL
3667#define HAS_NTOHS
3668#define HAS_NTOHL
8e2d7c44
NC
3669# if (BYTEORDER & 0xffff) == 0x4321
3670/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3671 re-order their values. However, to behave identically to the alternative
3672 implementations, they should truncate to the correct size. */
3673# define ntohl(x) ((x)&0xFFFFFFFF)
3674# define htonl(x) ntohl(x)
3675# define ntohs(x) ((x)&0xFFFF)
3676# define htons(x) ntohs(x)
e4b03fed
NC
3677# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3678
3679/* Note that we can't straight out declare our own htonl and htons because
3680 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3681 to avoid the overhead of initialising the socket subsystem, but the headers
3682 that *declare* the various functions are still seen. If we declare our own
3683 htonl etc they will clash with the declarations in the Win32 headers. */
3684
3685PERL_STATIC_INLINE U32
3686my_swap32(const U32 x) {
3687 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3688 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3689}
3690
3691PERL_STATIC_INLINE U16
3692my_swap16(const U16 x) {
3693 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3694}
3695
3696# define htonl(x) my_swap32(x)
3697# define ntohl(x) my_swap32(x)
3698# define ntohs(x) my_swap16(x)
3699# define htons(x) my_swap16(x)
8e2d7c44 3700# else
691a44df
NC
3701# error "Unsupported byteorder"
3702/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3703 the error message. Please check the value of the macro BYTEORDER, as defined
3704 in config.h. The values of BYTEORDER we expect are
3705
3706 big endian little endian
3707 32 bit 0x4321 0x1234
3708 64 bit 0x87654321 0x12345678
3709
3710 If you have a system with a different byte order, please see
3711 pod/perlhack.pod for how to submit a patch to add supporting code.
3712*/
3713# endif
a687059c
LW
3714#endif
3715
988174c1
LW
3716/*
3717 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3718 * -DWS
3719 */
5ae72479 3720#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC
3721/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3722 re-order their values. However, to behave identically to the alternative
3723 implementations, they should truncate to the correct size. */
3724# define vtohl(x) ((x)&0xFFFFFFFF)
3725# define vtohs(x) ((x)&0xFFFF)