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[perl #122445] use magic on $DB::single etc to avoid overload issues
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
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6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
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37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
86a3cabf
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40#endif
41
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42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
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45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
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51# define MULTIPLICITY
52# endif
53#endif
54
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55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
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61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
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67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
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73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
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79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
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86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
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92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
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94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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103# define USE_REENTRANT_API
104#endif
105
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106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
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108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
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113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
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126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
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138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
143# ifndef PERLIO_FUNCS_CONST
144# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
145# endif
146# else
147# define PERL_GET_VARS() PL_VarsPtr
148# endif
149# endif
150#endif
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
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161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
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172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
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181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
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184# define pTHX_5 6
185# define pTHX_6 7
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186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
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190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
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195#endif
196
76e3520e 197#define STATIC static
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198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
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209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
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224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
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230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
16c91539 234 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
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280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
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289
290
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291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
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297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
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308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
34659ad4 312# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
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319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
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321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
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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
0cb96387
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446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
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448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
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452# define pTHX_5 5
453# define pTHX_6 6
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454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
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458#endif
459
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460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
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464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
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466# define pTHXo pTHX
467# define pTHXo_ pTHX_
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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
da70cfc6 1131#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1132# include <sys/socket.h>
1133# if defined(USE_SOCKS) && defined(I_SOCKS)
1134# if !defined(INCLUDE_PROTOTYPES)
1135# define INCLUDE_PROTOTYPES /* for <socks.h> */
1136# define PERL_SOCKS_NEED_PROTOTYPES
1137# endif
1138# include <socks.h>
1139# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1140# undef INCLUDE_PROTOTYPES
1141# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1142# endif
d460ef45 1143# endif
1e743fda 1144# ifdef I_NETDB
2986a63f
JH
1145# ifdef NETWARE
1146# include<stdio.h>
1147# endif
1e743fda
JH
1148# include <netdb.h>
1149# endif
1150# ifndef ENOTSOCK
1151# ifdef I_NET_ERRNO
1152# include <net/errno.h>
1153# endif
1154# endif
1155#endif
1156
fa0a29af 1157/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1158 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1159 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1160#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1161# if defined(__THROW) && defined(__GLIBC__)
1162int sockatmark(int) __THROW;
1163# else
2ef53570 1164int sockatmark(int);
29820b6d 1165# endif
2ef53570
JH
1166#endif
1167
7e827271 1168#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
1169EXTERN_C int fchdir(int);
1170EXTERN_C int flock(int, int);
1171EXTERN_C int fseeko(FILE *, off_t, int);
1172EXTERN_C off_t ftello(FILE *);
1173#endif
1174
7e827271 1175#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1176EXTERN_C char *crypt(const char *, const char *);
7e827271 1177EXTERN_C char **environ;
1ccb7c8d
JH
1178#endif
1179
83a6ff2e 1180#if defined(__cplusplus)
ce3470dc 1181# if defined(BSDish)
b91fbb93 1182EXTERN_C char **environ;
83a6ff2e 1183# elif defined(__CYGWIN__)
667e2948
SP
1184EXTERN_C char *crypt(const char *, const char *);
1185#endif
83a6ff2e 1186#endif
667e2948 1187
1e743fda
JH
1188#ifdef SETERRNO
1189# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1190#endif
f86702cc
PP
1191
1192#ifdef VMS
1193# define SETERRNO(errcode,vmserrcode) \
1194 STMT_START { \
1195 set_errno(errcode); \
1196 set_vaxc_errno(vmserrcode); \
1197 } STMT_END
4ee39169
CS
1198# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1199# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1200# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1201# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1202
93189314
JH
1203# define LIB_INVARG LIB$_INVARG
1204# define RMS_DIR RMS$_DIR
1205# define RMS_FAC RMS$_FAC
1206# define RMS_FEX RMS$_FEX
1207# define RMS_FNF RMS$_FNF
1208# define RMS_IFI RMS$_IFI
1209# define RMS_ISI RMS$_ISI
1210# define RMS_PRV RMS$_PRV
1211# define SS_ACCVIO SS$_ACCVIO
1212# define SS_DEVOFFLINE SS$_DEVOFFLINE
1213# define SS_IVCHAN SS$_IVCHAN
1214# define SS_NORMAL SS$_NORMAL
8a9f18be 1215# define SS_NOPRIV SS$_NOPRIV
748a9306 1216#else
93189314
JH
1217# define LIB_INVARG 0
1218# define RMS_DIR 0
1219# define RMS_FAC 0
1220# define RMS_FEX 0
1221# define RMS_FNF 0
1222# define RMS_IFI 0
1223# define RMS_ISI 0
1224# define RMS_PRV 0
1225# define SS_ACCVIO 0
1226# define SS_DEVOFFLINE 0
1227# define SS_IVCHAN 0
1228# define SS_NORMAL 0
8a9f18be 1229# define SS_NOPRIV 0
748a9306 1230#endif
ed6116ce 1231
6ca940a9
TC
1232#ifdef WIN32
1233# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1234# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1235# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1236# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1237#endif
1238
1239#ifdef OS2
1240# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1241# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1242# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1243# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1244#endif
1245
1246#ifndef SETERRNO
1247# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1248#endif
1249
1250#ifndef dSAVEDERRNO
1251# define dSAVEDERRNO int saved_errno
1252# define dSAVE_ERRNO int saved_errno = errno
1253# define SAVE_ERRNO (saved_errno = errno)
1254# define RESTORE_ERRNO (errno = saved_errno)
1255#endif
1256
f5fa9033 1257#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1258
1259#define CLEAR_ERRSV() STMT_START { \
1260 if (!GvSV(PL_errgv)) { \
1261 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1262 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1263 SvREFCNT_dec(GvSV(PL_errgv)); \
1264 GvSV(PL_errgv) = newSVpvs(""); \
1265 } else { \
1266 SV *const errsv = GvSV(PL_errgv); \
1267 sv_setpvs(errsv, ""); \
1268 if (SvMAGICAL(errsv)) { \
1269 mg_free(errsv); \
1270 } \
1271 SvPOK_only(errsv); \
1272 } \
1273 } STMT_END
1274
1275
414bf5ae
MHM
1276#ifdef PERL_CORE
1277# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1278# define DEFSV_set(sv) \
1279 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1280# define SAVE_DEFSV \
1281 ( \
1282 save_gp(PL_defgv, 0), \
1283 GvINTRO_off(PL_defgv), \
1284 SAVEGENERICSV(GvSV(PL_defgv)), \
1285 GvSV(PL_defgv) = NULL \
1286 )
414bf5ae
MHM
1287#else
1288# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1289# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1290# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1291#endif
38a03e6e 1292
55497cff 1293#ifndef errno
5ff3f7a4
GS
1294 extern int errno; /* ANSI allows errno to be an lvalue expr.
1295 * For example in multithreaded environments
1296 * something like this might happen:
1297 * extern int *_errno(void);
1298 * #define errno (*_errno()) */
d9d8d8de 1299#endif
663a0e37 1300
7e996671
KW
1301#define UNKNOWN_ERRNO_MSG "(unknown)"
1302
2304df62 1303#ifdef HAS_STRERROR
b3e384bf 1304# ifndef DONT_DECLARE_STD
a0d0e21e 1305# ifdef VMS
20ce7b12 1306 char *strerror (int,...);
a0d0e21e 1307# else
20ce7b12 1308 char *strerror (int);
a0d0e21e 1309# endif
b3e384bf
KW
1310# endif
1311# ifndef Strerror
1312# define Strerror strerror
1313# endif
2304df62
AD
1314#else
1315# ifdef HAS_SYS_ERRLIST
79072805
LW
1316 extern int sys_nerr;
1317 extern char *sys_errlist[];
2304df62
AD
1318# ifndef Strerror
1319# define Strerror(e) \
7e996671 1320 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1321# endif
79072805 1322# endif
35c8bce7 1323#endif
663a0e37 1324
2304df62 1325#ifdef I_SYS_IOCTL
79072805
LW
1326# ifndef _IOCTL_
1327# include <sys/ioctl.h>
1328# endif
a687059c
LW
1329#endif
1330
ee0007ab 1331#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1332# ifdef HAS_SOCKETPAIR
1333# undef HAS_SOCKETPAIR
1334# endif
2304df62
AD
1335# ifdef I_NDBM
1336# undef I_NDBM
79072805 1337# endif
a687059c
LW
1338#endif
1339
02fc2eee
NC
1340#ifndef HAS_SOCKETPAIR
1341# ifdef HAS_SOCKET
1342# define socketpair Perl_my_socketpair
1343# endif
1344#endif
1345
a687059c 1346#if INTSIZE == 2
79072805
LW
1347# define htoni htons
1348# define ntohi ntohs
a687059c 1349#else
79072805
LW
1350# define htoni htonl
1351# define ntohi ntohl
a687059c
LW
1352#endif
1353
a0d0e21e 1354/* Configure already sets Direntry_t */
35c8bce7 1355#if defined(I_DIRENT)
663a0e37 1356# include <dirent.h>
ae986130 1357#else
fe14fcc3 1358# ifdef I_SYS_NDIR
79a0689e 1359# include <sys/ndir.h>
663a0e37 1360# else
fe14fcc3 1361# ifdef I_SYS_DIR
79a0689e
LW
1362# ifdef hp9000s500
1363# include <ndir.h> /* may be wrong in the future */
1364# else
1365# include <sys/dir.h>
1366# endif
663a0e37
LW
1367# endif
1368# endif
4633a7c4 1369#endif
a687059c 1370
c623bd54
LW
1371/*
1372 * The following gobbledygook brought to you on behalf of __STDC__.
1373 * (I could just use #ifndef __STDC__, but this is more bulletproof
1374 * in the face of half-implementations.)
1375 */
1376
21e89b5f 1377#if defined(I_SYSMODE)
ca6e1c26
JH
1378#include <sys/mode.h>
1379#endif
1380
c623bd54
LW
1381#ifndef S_IFMT
1382# ifdef _S_IFMT
1383# define S_IFMT _S_IFMT
1384# else
1385# define S_IFMT 0170000
1386# endif
1387#endif
1388
1389#ifndef S_ISDIR
1390# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1391#endif
1392
1393#ifndef S_ISCHR
1394# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1395#endif
1396
1397#ifndef S_ISBLK
fe14fcc3
LW
1398# ifdef S_IFBLK
1399# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1400# else
1401# define S_ISBLK(m) (0)
1402# endif
c623bd54
LW
1403#endif
1404
1405#ifndef S_ISREG
1406# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1407#endif
1408
1409#ifndef S_ISFIFO
fe14fcc3
LW
1410# ifdef S_IFIFO
1411# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1412# else
1413# define S_ISFIFO(m) (0)
1414# endif
c623bd54
LW
1415#endif
1416
1417#ifndef S_ISLNK
1418# ifdef _S_ISLNK
1419# define S_ISLNK(m) _S_ISLNK(m)
1420# else
1421# ifdef _S_IFLNK
1422# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1423# else
1424# ifdef S_IFLNK
1425# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1426# else
1427# define S_ISLNK(m) (0)
1428# endif
1429# endif
1430# endif
1431#endif
1432
1433#ifndef S_ISSOCK
1434# ifdef _S_ISSOCK
1435# define S_ISSOCK(m) _S_ISSOCK(m)
1436# else
1437# ifdef _S_IFSOCK
1438# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1439# else
1440# ifdef S_IFSOCK
1441# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1442# else
1443# define S_ISSOCK(m) (0)
1444# endif
1445# endif
1446# endif
1447#endif
1448
1449#ifndef S_IRUSR
1450# ifdef S_IREAD
1451# define S_IRUSR S_IREAD
1452# define S_IWUSR S_IWRITE
1453# define S_IXUSR S_IEXEC
1454# else
1455# define S_IRUSR 0400
1456# define S_IWUSR 0200
1457# define S_IXUSR 0100
1458# endif
fac7cdfc 1459#endif
1460
1461#ifndef S_IRGRP
1462# ifdef S_IRUSR
1463# define S_IRGRP (S_IRUSR>>3)
1464# define S_IWGRP (S_IWUSR>>3)
1465# define S_IXGRP (S_IXUSR>>3)
1466# else
1467# define S_IRGRP 0040
1468# define S_IWGRP 0020
1469# define S_IXGRP 0010
1470# endif
1471#endif
1472
1473#ifndef S_IROTH
1474# ifdef S_IRUSR
1475# define S_IROTH (S_IRUSR>>6)
1476# define S_IWOTH (S_IWUSR>>6)
1477# define S_IXOTH (S_IXUSR>>6)
1478# else
1479# define S_IROTH 0040
1480# define S_IWOTH 0020
1481# define S_IXOTH 0010
1482# endif
c623bd54
LW
1483#endif
1484
1485#ifndef S_ISUID
1486# define S_ISUID 04000
1487#endif
1488
1489#ifndef S_ISGID
1490# define S_ISGID 02000
1491#endif
1492
ca6e1c26
JH
1493#ifndef S_IRWXU
1494# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1495#endif
ca6e1c26
JH
1496
1497#ifndef S_IRWXG
1498# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1499#endif
ca6e1c26
JH
1500
1501#ifndef S_IRWXO
1502# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1503#endif
ca6e1c26 1504
b6c36746 1505/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1506 * which would get included through <sys/file.h >, but that is 3000
1507 * lines in the future. --jhi */
1508
b6c36746 1509#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1510# define S_IREAD S_IRUSR
1511#endif
1512
b6c36746 1513#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1514# define S_IWRITE S_IWUSR
1515#endif
1516
1517#ifndef S_IEXEC
1518# define S_IEXEC S_IXUSR
1519#endif
1520
a0d0e21e 1521#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1522# define SLOPPYDIVIDE
1523#endif
1524
748a9306
LW
1525#ifdef UV
1526#undef UV
1527#endif
1528
ce582cee
NC
1529/* For the times when you want the return value of sprintf, and you want it
1530 to be the length. Can't have a thread variable passed in, because C89 has
1531 no varargs macros.
1532*/
1533#ifdef SPRINTF_RETURNS_STRLEN
1534# define my_sprintf sprintf
1535#else
1536# define my_sprintf Perl_my_sprintf
1537#endif
1538
5b692037
JH
1539/*
1540 * If we have v?snprintf() and the C99 variadic macros, we can just
1541 * use just the v?snprintf(). It is nice to try to trap the buffer
1542 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1543 * gcc statement expressions, then use the function wrappers which try
1544 * to trap the overflow. If we can use the gcc statement expressions,
1545 * we can try that even with the version that uses the C99 variadic
1546 * macros.
5b692037
JH
1547 */
1548
1208b3dd
JH
1549/* Note that we do not check against snprintf()/vsnprintf() returning
1550 * negative values because that is non-standard behaviour and we use
1551 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1552 * that should be true only if the snprintf()/vsnprintf() are true
1553 * to the standard. */
1554
e8549682
JH
1555#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
1556
a4eca1d4
JH
1557#ifdef USE_QUADMATH
1558# define my_snprintf Perl_my_snprintf
1559# define PERL_MY_SNPRINTF_GUARDED
1560#else
dfeee9b1 1561#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1562# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1563# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1564# define PERL_MY_SNPRINTF_GUARDED
5b692037 1565# else
e8549682 1566# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1567# endif
1568#else
1569# define my_snprintf Perl_my_snprintf
1208b3dd 1570# define PERL_MY_SNPRINTF_GUARDED
5b692037 1571#endif
a4eca1d4 1572#endif
5b692037 1573
a4eca1d4
JH
1574/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1575 * dies if called under USE_QUADMATH. */
dfeee9b1 1576#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1577# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1578# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1579# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1580# else
e8549682 1581# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1582# endif
1583#else
1584# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1585# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1586#endif
d9fad198 1587
e8549682
JH
1588/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1589 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1590 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1591 * completely ignore it: otherwise you cannot know whether your output
1592 * was too long.)
1593 *
1594 * int len = my_sprintf(buf, max, ...);
1595 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1596 *
1597 * The trick is that in certain platforms [a] the my_sprintf() already
1598 * contains the sanity check, while in certain platforms [b] it needs
1599 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1600 * platforms the POST_GUARD actually does nothing since the check has
1601 * already been done. Watch out for the max being the same in both calls.
1602 *
1603 * If you actually use the snprintf/vsnprintf return value already,
1604 * you assumedly are checking its validity somehow. But you can
1605 * insert the POST_GUARD() also in that case. */
1606
1607#ifndef PERL_MY_SNPRINTF_GUARDED
1608# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1609#else
1610# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1611#endif
1612
1613#ifndef PERL_MY_VSNPRINTF_GUARDED
1614# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1615#else
1616# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1617#endif
1618
a6cc4119
SP
1619#ifdef HAS_STRLCAT
1620# define my_strlcat strlcat
1621#else
1622# define my_strlcat Perl_my_strlcat
1623#endif
1624
1625#ifdef HAS_STRLCPY
1626# define my_strlcpy strlcpy
1627#else
1628# define my_strlcpy Perl_my_strlcpy
1629#endif
1630
05f13f53 1631/*
27d4fb96
PP
1632 The IV type is supposed to be long enough to hold any integral
1633 value or a pointer.
1634 --Andy Dougherty August 1996
1635*/
1636
a22e52b9
JH
1637typedef IVTYPE IV;
1638typedef UVTYPE UV;
8175356b 1639
10cc9d2a 1640#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1641# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1642# define IV_MAX INT64_MAX
1643# define IV_MIN INT64_MIN
1644# define UV_MAX UINT64_MAX
cae7ae48
JH
1645# ifndef UINT64_MIN
1646# define UINT64_MIN 0
1647# endif
5ff3f7a4
GS
1648# define UV_MIN UINT64_MIN
1649# else
1650# define IV_MAX PERL_QUAD_MAX
1651# define IV_MIN PERL_QUAD_MIN
1652# define UV_MAX PERL_UQUAD_MAX
1653# define UV_MIN PERL_UQUAD_MIN
1654# endif
cf2093f6
JH
1655# define IV_IS_QUAD
1656# define UV_IS_QUAD
79072805 1657#else
8175356b 1658# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1659# define IV_MAX INT32_MAX
1660# define IV_MIN INT32_MIN
716026f9
DL
1661# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1662# define UV_MAX UINT32_MAX
1663# else
1664# define UV_MAX 4294967295U
1665# endif
cae7ae48
JH
1666# ifndef UINT32_MIN
1667# define UINT32_MIN 0
1668# endif
5ff3f7a4
GS
1669# define UV_MIN UINT32_MIN
1670# else
1671# define IV_MAX PERL_LONG_MAX
1672# define IV_MIN PERL_LONG_MIN
1673# define UV_MAX PERL_ULONG_MAX
1674# define UV_MIN PERL_ULONG_MIN
1675# endif
8175356b 1676# if IVSIZE == 8
cf2093f6
JH
1677# define IV_IS_QUAD
1678# define UV_IS_QUAD
de1c2614
JH
1679# ifndef HAS_QUAD
1680# define HAS_QUAD
1681# endif
cf2093f6
JH
1682# else
1683# undef IV_IS_QUAD
1684# undef UV_IS_QUAD
9ea40801 1685#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1686/* We think that removing this decade-old undef this will cause too much
1687 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1688 However, we do need HAS_QUAD in the core for use by the drand48 code,
1689 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1690# undef HAS_QUAD
e25d460c 1691#endif
cf2093f6 1692# endif
79072805 1693#endif
d7d93a81 1694
6313e544
JH
1695#define Size_t_MAX (~(Size_t)0)
1696#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1697
cae7ae48 1698#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1699#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1700
28e5dec8 1701#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1702#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1703#endif
1704
d460ef45 1705/*
26bb67e2
JH
1706 * The macros INT2PTR and NUM2PTR are (despite their names)
1707 * bi-directional: they will convert int/float to or from pointers.
1708 * However the conversion to int/float are named explicitly:
1709 * PTR2IV, PTR2UV, PTR2NV.
1710 *
1711 * For int conversions we do not need two casts if pointers are
1712 * the same size as IV and UV. Otherwise we need an explicit
1713 * cast (PTRV) to avoid compiler warnings.
1714 */
56431972
RB
1715#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1716# define PTRV UV
1717# define INT2PTR(any,d) (any)(d)
1718#else
d460ef45 1719# if PTRSIZE == LONGSIZE
56431972 1720# define PTRV unsigned long
e91e3b10 1721# define PTR2ul(p) (unsigned long)(p)
42718184 1722# else
56431972 1723# define PTRV unsigned
42718184 1724# endif
e91e3b10
RB
1725#endif
1726
1727#ifndef INT2PTR
56431972 1728# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1729#endif
e91e3b10
RB
1730
1731#ifndef PTR2ul
1732# define PTR2ul(p) INT2PTR(unsigned long,p)
1733#endif
1734
56431972
RB
1735#define NUM2PTR(any,d) (any)(PTRV)(d)
1736#define PTR2IV(p) INT2PTR(IV,p)
1737#define PTR2UV(p) INT2PTR(UV,p)
1738#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1739#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1740
8141890a
JH
1741/* According to strict ANSI C89 one cannot freely cast between
1742 * data pointers and function (code) pointers. There are at least
1743 * two ways around this. One (used below) is to do two casts,
1744 * first the other pointer to an (unsigned) integer, and then
1745 * the integer to the other pointer. The other way would be
1746 * to use unions to "overlay" the pointers. For an example of
1747 * the latter technique, see union dirpu in struct xpvio in sv.h.
1748 * The only feasible use is probably temporarily storing
1749 * function pointers in a data pointer (such as a void pointer). */
1750
e91e3b10
RB
1751#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1752#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1753
65202027 1754#ifdef USE_LONG_DOUBLE
1048ea30
JH
1755# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1756# define LONG_DOUBLE_EQUALS_DOUBLE
1757# endif
68d4903c 1758# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1759# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1760# endif
1761#endif
1762
2d4389e4
JH
1763#ifdef OVR_DBL_DIG
1764/* Use an overridden DBL_DIG */
1765# ifdef DBL_DIG
1766# undef DBL_DIG
1767# endif
1768# define DBL_DIG OVR_DBL_DIG
1769#else
1770/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1771 default value for printing floating point numbers in Gconvert
1772 (see config.h). (It also has other uses, such as figuring out if
1773 a given precision of printing can be done with a double instead of
1774 a long double - Allen).
2d4389e4
JH
1775*/
1776#ifdef I_LIMITS
1777#include <limits.h>
1778#endif
1779#ifdef I_FLOAT
1780#include <float.h>
1781#endif
1782#ifndef HAS_DBL_DIG
1783#define DBL_DIG 15 /* A guess that works lots of places */
1784#endif
1785#endif
1786
1787#ifdef OVR_LDBL_DIG
1788/* Use an overridden LDBL_DIG */
1789# ifdef LDBL_DIG
1790# undef LDBL_DIG
1791# endif
1792# define LDBL_DIG OVR_LDBL_DIG
1793#else
1794/* The following is all to get LDBL_DIG, in order to pick a nice
1795 default value for printing floating point numbers in Gconvert.
1796 (see config.h)
1797*/
68d4903c
JH
1798# ifdef I_LIMITS
1799# include <limits.h>
1800# endif
1801# ifdef I_FLOAT
1802# include <float.h>
1803# endif
1804# ifndef HAS_LDBL_DIG
1805# if LONG_DOUBLESIZE == 10
1806# define LDBL_DIG 18 /* assume IEEE */
1807# else
1808# if LONG_DOUBLESIZE == 12
1809# define LDBL_DIG 18 /* gcc? */
1810# else
1811# if LONG_DOUBLESIZE == 16
1812# define LDBL_DIG 33 /* assume IEEE */
1813# else
1814# if LONG_DOUBLESIZE == DOUBLESIZE
1815# define LDBL_DIG DBL_DIG /* bummer */
1816# endif
1817# endif
1818# endif
1819# endif
1820# endif
2d4389e4
JH
1821#endif
1822
20f6aaab
AS
1823/*
1824 * This is for making sure we have a good DBL_MAX value, if possible,
1825 * either for usage as NV_MAX or for usage in figuring out if we can
1826 * fit a given long double into a double, if bug-fixing makes it
1827 * necessary to do so. - Allen <allens@cpan.org>
1828 */
1829
205f51d8
AS
1830#ifdef I_LIMITS
1831# include <limits.h>
20f6aaab
AS
1832#endif
1833
205f51d8
AS
1834#ifdef I_VALUES
1835# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1836# include <values.h>
1837# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1838# define DBL_MAX MAXDOUBLE
1839# endif
1840# if defined(MINDOUBLE) && !defined(DBL_MIN)
1841# define DBL_MIN MINDOUBLE
1842# endif
1843# endif
1844#endif /* defined(I_VALUES) */
1845
a22e52b9 1846typedef NVTYPE NV;
8175356b 1847
792d8dab
JH
1848#ifdef I_IEEEFP
1849# include <ieeefp.h>
1850#endif
923fc586 1851
c32c3de1
JH
1852#ifdef USING_MSVC6
1853/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1854 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1855# define NAN_COMPARE_BROKEN
1856#endif
1857#if defined(__DECC) && defined(__osf__)
1858/* Also Tru64 cc has broken NaN comparisons. */
1859# define NAN_COMPARE_BROKEN
c32c3de1
JH
1860#endif
1861
65202027 1862#ifdef USE_LONG_DOUBLE
923fc586
JH
1863# ifdef I_SUNMATH
1864# include <sunmath.h>
1865# endif
05b4a618
JH
1866# if defined(USE_QUADMATH) && defined(I_QUADMATH)
1867# include <quadmath.h>
d6c14000 1868# endif
05b4a618
JH
1869# ifdef FLT128_DIG
1870# define NV_DIG FLT128_DIG
1871# define NV_MANT_DIG FLT128_MANT_DIG
1872# define NV_MIN FLT128_MIN
1873# define NV_MAX FLT128_MAX
1874# define NV_MIN_EXP FLT128_MIN_EXP
1875# define NV_MAX_EXP FLT128_MAX_EXP
1876# define NV_EPSILON FLT128_EPSILON
1877# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1878# define NV_MAX_10_EXP FLT128_MAX_10_EXP
1879# define NV_INF HUGE_VALQ
1880# define NV_NAN nanq("0")
1881# elif defined(LDBL_DIG)
1882# define NV_DIG LDBL_DIG
1883# ifdef LDBL_MANT_DIG
1884# define NV_MANT_DIG LDBL_MANT_DIG
1885# endif
1886# ifdef LDBL_MIN
1887# define NV_MIN LDBL_MIN
1888# endif
1889# ifdef LDBL_MAX
1890# define NV_MAX LDBL_MAX
1891# endif
1892# ifdef LDBL_MIN_EXP
1893# define NV_MIN_EXP LDBL_MIN_EXP
1894# endif
1895# ifdef LDBL_MAX_EXP
1896# define NV_MAX_EXP LDBL_MAX_EXP
1897# endif
1898# ifdef LDBL_MIN_10_EXP
1899# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1900# endif
1901# ifdef LDBL_MAX_10_EXP
1902# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1903# endif
1904# ifdef LDBL_EPSILON
1905# define NV_EPSILON LDBL_EPSILON
1906# endif
1907# ifdef LDBL_MAX
1908# define NV_MAX LDBL_MAX
20f6aaab 1909/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1910# else
05b4a618
JH
1911# ifdef HUGE_VALL
1912# define NV_MAX HUGE_VALL
f4a14a62
JH
1913# endif
1914# endif
1915# endif
05b4a618
JH
1916# if defined(USE_QUADMATH) && defined(I_QUADMATH)
1917# define Perl_acos acosq
1918# define Perl_asin asinq
1919# define Perl_atan atanq
1920# define Perl_atan2 atan2q
1921# define Perl_ceil ceilq
1922# define Perl_cos cosq
1923# define Perl_cosh coshq
1924# define Perl_exp expq
1925/* no Perl_fabs, but there's PERL_ABS */
1926# define Perl_floor floorq
1927# define Perl_fmod fmodq
1928# define Perl_log logq
1929# define Perl_log10 log10q
1930# define Perl_pow powq
1931# define Perl_sin sinq
1932# define Perl_sinh sinhq
1933# define Perl_sqrt sqrtq
1934# define Perl_tan tanq
1935# define Perl_tanh tanhq
1936# define Perl_modf(x,y) modfq(x,y)
1937# define Perl_frexp(x,y) frexpq(x,y)
1938# define Perl_ldexp(x, y) ldexpq(x,y)
1939# define Perl_isinf(x) isinfq(x)
1940# define Perl_isnan(x) isnanq(x)
1941# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
1942# elif defined(HAS_SQRTL)
8a00eddc
JH
1943# define Perl_acos acosl
1944# define Perl_asin asinl
1945# define Perl_atan atanl
940e3d56
JH
1946# define Perl_atan2 atan2l
1947# define Perl_ceil ceill
1948# define Perl_cos cosl
8a00eddc 1949# define Perl_cosh coshl
940e3d56 1950# define Perl_exp expl
55da5e5b 1951/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1952# define Perl_floor floorl
1953# define Perl_fmod fmodl
1954# define Perl_log logl
8a00eddc 1955# define Perl_log10 log10l
940e3d56
JH
1956# define Perl_pow powl
1957# define Perl_sin sinl
8a00eddc 1958# define Perl_sinh sinhl
940e3d56 1959# define Perl_sqrt sqrtl
8a00eddc
JH
1960# define Perl_tan tanl
1961# define Perl_tanh tanhl
68d4903c 1962# endif
a3540c92 1963/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1964# ifndef Perl_modf
1965# ifdef HAS_MODFL
1966# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1967/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1968 prototype in <math.h> */
05b4a618 1969# ifndef HAS_MODFL_PROTO
a221a8a5 1970EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1971# endif
1972# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1973 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1974# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1975# endif
a3540c92 1976# endif
05b4a618
JH
1977# ifndef Perl_frexp
1978# ifdef HAS_FREXPL
1979# define Perl_frexp(x,y) frexpl(x,y)
1980# else
1981# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1982extern long double Perl_my_frexpl(long double x, int *e);
1983# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1984# endif
03476e8e 1985# endif
a3540c92 1986# endif
05b4a618
JH
1987# ifndef Perl_ldexp
1988# ifdef HAS_LDEXPL
1989# define Perl_ldexp(x, y) ldexpl(x,y)
1990# else
1991# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1992# define Perl_ldexp(x,y) scalbnl(x,y)
1993# endif
98181445
JH
1994# endif
1995# endif
38dbb4c5 1996# ifndef Perl_isnan
e4c957f4 1997# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1998# define Perl_isnan(x) isnanl(x)
1999# endif
2000# endif
2001# ifndef Perl_isinf
e4c957f4 2002# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 2003# define Perl_isinf(x) isinfl(x)
bcd8bfa9 2004# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2005# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
2006# endif
2007# endif
e38461cc
JH
2008# ifndef Perl_isfinite
2009# define Perl_isfinite(x) Perl_isfinitel(x)
2010# endif
65202027 2011#else
2d4389e4 2012# define NV_DIG DBL_DIG
d6c14000
JH
2013# ifdef DBL_MANT_DIG
2014# define NV_MANT_DIG DBL_MANT_DIG
2015# endif
06fc1729
JH
2016# ifdef DBL_MIN
2017# define NV_MIN DBL_MIN
2018# endif
2019# ifdef DBL_MAX
2020# define NV_MAX DBL_MAX
2021# endif
40bca5ae
JH
2022# ifdef DBL_MIN_EXP
2023# define NV_MIN_EXP DBL_MIN_EXP
2024# endif
2025# ifdef DBL_MAX_EXP
2026# define NV_MAX_EXP DBL_MAX_EXP
2027# endif
06fc1729
JH
2028# ifdef DBL_MIN_10_EXP
2029# define NV_MIN_10_EXP DBL_MIN_10_EXP
2030# endif
2031# ifdef DBL_MAX_10_EXP
2032# define NV_MAX_10_EXP DBL_MAX_10_EXP
2033# endif
2034# ifdef DBL_EPSILON
2035# define NV_EPSILON DBL_EPSILON
2036# endif
205f51d8 2037# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2038# define NV_MAX DBL_MAX
2039# define NV_MIN DBL_MIN
2040# else
2041# ifdef HUGE_VAL
2042# define NV_MAX HUGE_VAL
2043# endif
2044# endif
940e3d56 2045
55da5e5b 2046/* These math interfaces are C89. */
8a00eddc
JH
2047# define Perl_acos acos
2048# define Perl_asin asin
2049# define Perl_atan atan
940e3d56
JH
2050# define Perl_atan2 atan2
2051# define Perl_ceil ceil
2052# define Perl_cos cos
8a00eddc 2053# define Perl_cosh cosh
940e3d56 2054# define Perl_exp exp
55da5e5b 2055/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2056# define Perl_floor floor
2057# define Perl_fmod fmod
2058# define Perl_log log
8a00eddc 2059# define Perl_log10 log10
940e3d56
JH
2060# define Perl_pow pow
2061# define Perl_sin sin
8a00eddc 2062# define Perl_sinh sinh
940e3d56 2063# define Perl_sqrt sqrt
8a00eddc
JH
2064# define Perl_tan tan
2065# define Perl_tanh tanh
940e3d56
JH
2066
2067# define Perl_modf(x,y) modf(x,y)
2068# define Perl_frexp(x,y) frexp(x,y)
2069# define Perl_ldexp(x,y) ldexp(x,y)
2070
1a322af2
JH
2071# ifndef Perl_isnan
2072# ifdef HAS_ISNAN
2073# define Perl_isnan(x) isnan(x)
2074# endif
2075# endif
2076# ifndef Perl_isinf
2077# if defined(HAS_ISINF)
2078# define Perl_isinf(x) isinf(x)
bcd8bfa9 2079# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2080# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2081# endif
2082# endif
2083# ifndef Perl_isfinite
2084# ifdef HAS_ISFINITE
2085# define Perl_isfinite(x) isfinite(x)
2086# elif defined(HAS_FINITE)
2087# define Perl_isfinite(x) finite(x)
2088# endif
2089# endif
758a5d79
JH
2090#endif
2091
30404d48
JH
2092/* fpclassify(): C99. It is supposed to be a macro that switches on
2093* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2094#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2095# include <math.h>
25c46df8
JH
2096# if defined(FP_INFINITE) && defined(FP_NAN)
2097# define Perl_fp_class(x) fpclassify(x)
2098# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2099# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2100# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2101# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2102# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2103# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2104/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2105 * actually not the C99 fpclassify, with its own set of return defines. */
2106# define Perl_fp_class(x) fpclassify(x)
2107# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2108# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2109# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2110# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2111# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2112# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2113# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2114# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2115# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2116# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2117# else
2118# undef Perl_fp_class /* Unknown set of defines */
2119# endif
30404d48
JH
2120#endif
2121
25c46df8
JH
2122/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2123 * are identical to the C99 fpclassify(). */
2124#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2125# include <math.h>
558f3e66
CB
2126# ifdef __VMS
2127 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2128# include <fp.h>
56610b8f
CB
2129 /* oh, and the isnormal macro has a typo in it! */
2130# undef isnormal
2131# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2132# endif
25c46df8
JH
2133# if defined(FP_INFINITE) && defined(FP_NAN)
2134# define Perl_fp_class(x) fp_classify(x)
2135# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2136# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2137# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2138# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2139# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2140# else
2141# undef Perl_fp_class /* Unknown set of defines */
2142# endif
f279e099 2143#endif
205f51d8 2144
30404d48
JH
2145/* Feel free to check with me for the SGI manpages, SGI testing,
2146 * etcetera, if you want to try getting this to work with IRIX.
2147 *
2148 * - Allen <allens@cpan.org> */
2149
2150/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2151#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2152/* Solaris and IRIX have fpclass/fpclassl, but they are using
2153 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2154 * Define some symbols also as cpp symbols so we can detect them. */
2155# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2156# define FP_PINF FP_PINF
2157# define FP_QNAN FP_QNAN
2158# endif
f279e099 2159# include <math.h>
758a5d79
JH
2160# ifdef I_IEEFP
2161# include <ieeefp.h>
2162# endif
2163# ifdef I_FP
2164# include <fp.h>
2165# endif
2166# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2167# define Perl_fp_class(x) fpclassl(x)
758a5d79 2168# else
f279e099
JH
2169# define Perl_fp_class(x) fpclass(x)
2170# endif
25c46df8 2171# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2172# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2173# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2174# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2175# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2176# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2177# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2178# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2179# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2180# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2181# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2182# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2183# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2184# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2185# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2186# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2187# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2188# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2189# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2190# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2191# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2192# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2193# else
2194# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2195# endif
758a5d79
JH
2196#endif
2197
30404d48
JH
2198/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2199#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2200# include <math.h>
2201# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2202# include <fp_class.h>
2203# endif
25c46df8
JH
2204# if defined(FP_POS_INF) && defined(FP_QNAN)
2205# ifdef __irix__ /* XXX Configure test instead */
2206# ifdef USE_LONG_DOUBLE
2207# define Perl_fp_class(x) fp_class_l(x)
2208# else
2209# define Perl_fp_class(x) fp_class_d(x)
2210# endif
f279e099 2211# else
25c46df8
JH
2212# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2213# define Perl_fp_class(x) fp_classl(x)
2214# else
2215# define Perl_fp_class(x) fp_class(x)
2216# endif
f279e099 2217# endif
25c46df8
JH
2218# if defined(FP_POS_INF) && defined(FP_QNAN)
2219# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2220# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2221# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2222# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2223# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2224# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2225# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2226# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2227# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2228# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2229# else
25c46df8 2230# undef Perl_fp_class /* Unknown set of defines */
30404d48 2231# endif
f279e099 2232# endif
30404d48
JH
2233#endif
2234
052758ae 2235/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2236#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2237# include <math.h>
25c46df8
JH
2238# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2239# ifndef _cplusplus
2240# define Perl_fp_class(x) class(x)
2241# else
2242# define Perl_fp_class(x) _class(x)
2243# endif
2244# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2245# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2246# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2247# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2248# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2249# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2250# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2251# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2252# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2253# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2254# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2255# else
2256# undef Perl_fp_class /* Unknown set of defines */
2257# endif
758a5d79 2258# endif
30404d48
JH
2259#endif
2260
2261/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2262#ifdef WIN32
2263# ifndef Perl_isnan
2264# define Perl_isnan(x) _isnan(x)
2265# endif
2266# ifndef Perl_isfinite
2267# define Perl_isfinite(x) _finite(x)
2268# endif
2269# ifndef Perl_fp_class_snan
25c46df8
JH
2270/* No simple way to #define Perl_fp_class because _fpclass()
2271 * returns a set of bits. */
796ea9ea
JH
2272# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2273# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2274# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2275# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2276# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2277# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2278# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2279# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2280# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2281# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2282# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2283# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2284# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2285# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2286# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2287# endif
f279e099
JH
2288#endif
2289
2290#if !defined(Perl_fp_class_inf) && \
2291 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2292# define Perl_fp_class_inf(x) \
2293 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2294#endif
2295
2296#if !defined(Perl_fp_class_nan) && \
2297 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2298# define Perl_fp_class_nan(x) \
2299 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2300#endif
2301
2302#if !defined(Perl_fp_class_zero) && \
2303 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2304# define Perl_fp_class_zero(x) \
2305 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2306#endif
2307
2308#if !defined(Perl_fp_class_norm) && \
2309 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2310# define Perl_fp_class_norm(x) \
2311 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2312#endif
2313
2314#if !defined(Perl_fp_class_denorm) && \
2315 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2316# define Perl_fp_class_denorm(x) \
2317 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2318#endif
758a5d79 2319
1a322af2
JH
2320#ifdef UNDER_CE
2321int isnan(double d);
2322#endif
2323
758a5d79 2324#ifndef Perl_isnan
1a322af2
JH
2325# ifdef Perl_fp_class_nan
2326# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2327# else
1a322af2
JH
2328# ifdef HAS_UNORDERED
2329# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2330# else
1a322af2 2331# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2332# endif
2333# endif
2334#endif
2335
1a322af2
JH
2336#ifndef Perl_isinf
2337# ifdef Perl_fp_class_inf
2338# define Perl_isinf(x) Perl_fp_class_inf(x)
2339# endif
ca6c63e1
JH
2340#endif
2341
758a5d79 2342#ifndef Perl_isfinite
25c46df8 2343# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2344# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2345# elif defined(HAS_FINITE)
c496ca58 2346# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2347# elif defined(Perl_fp_class_finite)
2348# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2349# else
c496ca58
JH
2350/* For the infinities the multiplication returns nan,
2351 * for the nan the multiplication also returns nan,
2352 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2353# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2354# endif
65202027
DS
2355#endif
2356
25c46df8
JH
2357#ifndef Perl_isinf
2358# if defined(Perl_isfinite) && defined(Perl_isnan)
2359# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2360# endif
2361#endif
2362
d3685250
JH
2363/* We need Perl_isfinitel (ends with ell) (if available) even when
2364 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2365 * needs that. */
2366#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2367/* If isfinite() is a macro and looks like we have C99,
2368 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2369# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2370# define Perl_isfinitel(x) isfinite(x)
2371# elif defined(HAS_ISFINITEL)
2372# define Perl_isfinitel(x) isfinitel(x)
2373# elif defined(HAS_FINITEL)
2374# define Perl_isfinitel(x) finitel(x)
2375# elif defined(HAS_INFL) && defined(HAS_NANL)
2376# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2377# else
99bf9e32 2378# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2379# endif
2380#endif
2381
a36244b7
JH
2382/* The default is to use Perl's own atof() implementation (in numeric.c).
2383 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2384 * it is however best to use the native implementation of atof.
2385 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2386 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2387 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2388 * you may need to be using a different function than atof! */
a36244b7
JH
2389
2390#ifndef USE_PERL_ATOF
2391# ifndef _UNICOS
2392# define USE_PERL_ATOF
2393# endif
2394#else
2395# if USE_PERL_ATOF == 0
2396# undef USE_PERL_ATOF
2397# endif
2398#endif
2399
2400#ifdef USE_PERL_ATOF
2401# define Perl_atof(s) Perl_my_atof(s)
2402# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2403#else
2404# define Perl_atof(s) (NV)atof(s)
2405# define Perl_atof2(s, n) ((n) = atof(s))
2406#endif
cf2093f6 2407
d460ef45 2408/* Previously these definitions used hardcoded figures.
760ac839
LW
2409 * It is hoped these formula are more portable, although
2410 * no data one way or another is presently known to me.
2411 * The "PERL_" names are used because these calculated constants
2412 * do not meet the ANSI requirements for LONG_MAX, etc., which
2413 * need to be constants acceptable to #if - kja
2414 * define PERL_LONG_MAX 2147483647L
2415 * define PERL_LONG_MIN (-LONG_MAX - 1)
2416 * define PERL ULONG_MAX 4294967295L
2417 */
2418
2419#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2420# include <limits.h>
760ac839 2421#endif
205f51d8 2422/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2423 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2424
99abf803
PP
2425/*
2426 * Try to figure out max and min values for the integral types. THE CORRECT
2427 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2428 * following hacks are used if neither limits.h or values.h provide them:
2429 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2430 * for types < int: (unsigned TYPE)~(unsigned)0
2431 * The argument to ~ must be unsigned so that later signed->unsigned
2432 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2433 * and it must not be smaller than int because ~ does integral promotion.
2434 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2435 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2436 * The latter is a hack which happens to work on some machines but
2437 * does *not* catch any random system, or things like integer types
2438 * with NaN if that is possible.
2439 *
2440 * All of the types are explicitly cast to prevent accidental loss of
2441 * numeric range, and in the hope that they will be less likely to confuse
2442 * over-eager optimizers.
2443 *
2444 */
27d4fb96 2445
99abf803
PP
2446#define PERL_UCHAR_MIN ((unsigned char)0)
2447
2448#ifdef UCHAR_MAX
2449# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2450#else
99abf803
PP
2451# ifdef MAXUCHAR
2452# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2453# else
99abf803 2454# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2455# endif
2456#endif
d460ef45 2457
99abf803
PP
2458/*
2459 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2460 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2461 * depending on local options. Until Configure detects this (or at least
2462 * detects whether the "signed" keyword is available) the CHAR ranges
2463 * will not be included. UCHAR functions normally.
2464 * - kja
2465 */
27d4fb96 2466
99abf803
PP
2467#define PERL_USHORT_MIN ((unsigned short)0)
2468
2469#ifdef USHORT_MAX
2470# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2471#else
99abf803
PP
2472# ifdef MAXUSHORT
2473# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2474# else
ef2f54b0
CB
2475# ifdef USHRT_MAX
2476# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2477# else
2478# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2479# endif
27d4fb96
PP
2480# endif
2481#endif
2482
27d4fb96 2483#ifdef SHORT_MAX
99abf803 2484# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2485#else
2486# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2487# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2488# else
ef2f54b0
CB
2489# ifdef SHRT_MAX
2490# define PERL_SHORT_MAX ((short)SHRT_MAX)
2491# else
2492# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2493# endif
27d4fb96
PP
2494# endif
2495#endif
2496
2497#ifdef SHORT_MIN
99abf803 2498# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2499#else
2500# ifdef MINSHORT
99abf803 2501# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2502# else
ef2f54b0
CB
2503# ifdef SHRT_MIN
2504# define PERL_SHORT_MIN ((short)SHRT_MIN)
2505# else
2506# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2507# endif
27d4fb96
PP
2508# endif
2509#endif
2510
99abf803
PP
2511#ifdef UINT_MAX
2512# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2513#else
99abf803
PP
2514# ifdef MAXUINT
2515# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2516# else
99abf803 2517# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2518# endif
2519#endif
2520
99abf803 2521#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2522
2523#ifdef INT_MAX
99abf803 2524# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2525#else
2526# ifdef MAXINT /* Often used in <values.h> */
99abf803 2527# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2528# else
99abf803 2529# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2530# endif
2531#endif
2532
2533#ifdef INT_MIN
99abf803 2534# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2535#else
2536# ifdef MININT
99abf803 2537# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2538# else
2539# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2540# endif
2541#endif
2542
99abf803
PP
2543#ifdef ULONG_MAX
2544# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2545#else
99abf803
PP
2546# ifdef MAXULONG
2547# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2548# else
99abf803 2549# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2550# endif
2551#endif
2552
99abf803 2553#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2554
760ac839 2555#ifdef LONG_MAX
99abf803 2556# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2557#else
2558# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2559# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2560# else
99abf803 2561# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2562# endif
2563#endif
2564
2565#ifdef LONG_MIN
99abf803 2566# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2567#else
2568# ifdef MINLONG
99abf803 2569# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2570# else
27d4fb96 2571# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2572# endif
2573#endif
2574
d7d93a81 2575#ifdef UV_IS_QUAD
99abf803 2576
99abf803 2577# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2578# define PERL_UQUAD_MIN ((UV)0)
99abf803 2579# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2580# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2581
79072805
LW
2582#endif
2583
ee0007ab 2584typedef MEM_SIZE STRLEN;
450a55e4 2585
79072805
LW
2586typedef struct op OP;
2587typedef struct cop COP;
2588typedef struct unop UNOP;
2589typedef struct binop BINOP;
2590typedef struct listop LISTOP;
2591typedef struct logop LOGOP;
79072805
LW
2592typedef struct pmop PMOP;
2593typedef struct svop SVOP;
7934575e 2594typedef struct padop PADOP;
79072805 2595typedef struct pvop PVOP;
79072805 2596typedef struct loop LOOP;
b46e009d 2597typedef struct methop METHOP;
79072805 2598
7aef8e5b 2599#ifdef PERL_CORE
8be227ab
FC
2600typedef struct opslab OPSLAB;
2601typedef struct opslot OPSLOT;
2602#endif
2603
52db365a 2604typedef struct block_hooks BHK;
1830b3d9 2605typedef struct custom_op XOP;
52db365a 2606
cd1541b2
NC
2607typedef struct interpreter PerlInterpreter;
2608
d2b3f365 2609/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2610#if defined(__sgi)
d2b3f365 2611# define STRUCT_SV perl_sv
b8d3c5db
JH
2612#else
2613# define STRUCT_SV sv
2614#endif
2615typedef struct STRUCT_SV SV;
79072805
LW
2616typedef struct av AV;
2617typedef struct hv HV;
2618typedef struct cv CV;
d2f13c59 2619typedef struct p5rx REGEXP;
79072805 2620typedef struct gp GP;
0c30d9ec 2621typedef struct gv GV;
8990e307 2622typedef struct io IO;
c09156bb 2623typedef struct context PERL_CONTEXT;
79072805
LW
2624typedef struct block BLOCK;
2625
2626typedef struct magic MAGIC;
2627typedef struct xpv XPV;
2628typedef struct xpviv XPVIV;
ff68c719 2629typedef struct xpvuv XPVUV;
79072805
LW
2630typedef struct xpvnv XPVNV;
2631typedef struct xpvmg XPVMG;
2632typedef struct xpvlv XPVLV;
d361b004 2633typedef struct xpvinvlist XINVLIST;
79072805
LW
2634typedef struct xpvav XPVAV;
2635typedef struct xpvhv XPVHV;
2636typedef struct xpvgv XPVGV;
2637typedef struct xpvcv XPVCV;
2638typedef struct xpvbm XPVBM;
2639typedef struct xpvfm XPVFM;
8990e307 2640typedef struct xpvio XPVIO;
79072805
LW
2641typedef struct mgvtbl MGVTBL;
2642typedef union any ANY;
5f7fde29
GS
2643typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2644typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2645typedef struct clone_params CLONE_PARAMS;
2646
35e035cc 2647/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2648 * so hide the type. */
2649typedef struct padlist PADLIST;
67634234 2650typedef AV PAD;
35e035cc
FC
2651typedef AV PADNAMELIST;
2652typedef SV PADNAME;
67634234 2653
13b0f67d
DM
2654/* enable PERL_NEW_COPY_ON_WRITE by default */
2655#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2656# define PERL_NEW_COPY_ON_WRITE
2657#endif
07d01d6e 2658
db2c6cb3
FC
2659#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2660# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2661# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2662# else
2663# define PERL_ANY_COW
2664# endif
9f351b45
DM
2665#else
2666# define PERL_SAWAMPERSAND
db2c6cb3
FC
2667#endif
2668
40653c20
FC
2669#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2670# error PERL_DEBUG_READONLY_OPS only works with ithreads
2671#endif
2672
378cc40b 2673#include "handy.h"
a0d0e21e 2674
6b8eaf93 2675#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2676# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2677# define USE_64_BIT_RAWIO /* implicit */
2678# endif
4564133c
JH
2679#endif
2680
6b8eaf93
JH
2681/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2682 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2683 * however, because operating systems like to do that themself. */
2684#ifndef FSEEKSIZE
2685# ifdef HAS_FSEEKO
2686# define FSEEKSIZE LSEEKSIZE
2687# else
2688# define FSEEKSIZE LONGSIZE
d460ef45 2689# endif
6b8eaf93
JH
2690#endif
2691
2692#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2693# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2694# define USE_64_BIT_STDIO /* implicit */
2695# endif
2696#endif
4564133c 2697
09458382 2698#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2699# ifdef HAS_OFF64_T
2700# undef Off_t
2701# define Off_t off64_t
2702# undef LSEEKSIZE
2703# define LSEEKSIZE 8
5ff3f7a4 2704# endif
d9b3e12d
JH
2705/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2706 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2707 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2708# if defined(USE_OPEN64)
2709# define open open64
5ff3f7a4 2710# endif
d9b3e12d
JH
2711# if defined(USE_LSEEK64)
2712# define lseek lseek64
6b8eaf93
JH
2713# else
2714# if defined(USE_LLSEEK)
2715# define lseek llseek
2716# endif
d9b3e12d
JH
2717# endif
2718# if defined(USE_STAT64)
2719# define stat stat64
2720# endif
2721# if defined(USE_FSTAT64)
2722# define fstat fstat64
2723# endif
2724# if defined(USE_LSTAT64)
2725# define lstat lstat64
2726# endif
2727# if defined(USE_FLOCK64)
2728# define flock flock64
2729# endif
2730# if defined(USE_LOCKF64)
2731# define lockf lockf64
2732# endif
2733# if defined(USE_FCNTL64)
2734# define fcntl fcntl64
2735# endif
2736# if defined(USE_TRUNCATE64)
2737# define truncate truncate64
2738# endif
2739# if defined(USE_FTRUNCATE64)
2740# define ftruncate ftruncate64
2741# endif
2742#endif
2743
2744#ifdef USE_64_BIT_STDIO
2745# ifdef HAS_FPOS64_T
2746# undef Fpos_t
2747# define Fpos_t fpos64_t
2748# endif
2749/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2750 * will trigger defines like the ones below. Some 64-bit environments,
2751 * however, do not. */
2752# if defined(USE_FOPEN64)
2753# define fopen fopen64
2754# endif
2755# if defined(USE_FSEEK64)
6b8eaf93 2756# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2757# endif
2758# if defined(USE_FTELL64)
6b8eaf93 2759# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2760# endif
2761# if defined(USE_FSETPOS64)
2762# define fsetpos fsetpos64
2763# endif
2764# if defined(USE_FGETPOS64)
2765# define fgetpos fgetpos64
2766# endif
2767# if defined(USE_TMPFILE64)
2768# define tmpfile tmpfile64
2769# endif
2770# if defined(USE_FREOPEN64)
2771# define freopen freopen64
5ff3f7a4
GS
2772# endif
2773#endif
2774
e37778c2 2775#if defined(OS2)
2c2d71f5
JH
2776# include "iperlsys.h"
2777#endif
2778
748a9306 2779#ifdef DOSISH
19848b3f
JH
2780# if defined(OS2)
2781# include "os2ish.h"
2782# else
2783# include "dosish.h"
2784# endif
009819bb 2785#elif defined(VMS)
748a9306 2786# include "vmsish.h"
009819bb 2787#elif defined(PLAN9)
19848b3f 2788# include "./plan9/plan9ish.h"
009819bb 2789#elif defined(__VOS__)
196918b0
PG
2790# ifdef __GNUC__
2791# include "./vos/vosish.h"
2792# else
2793# include "vos/vosish.h"
2794# endif
009819bb 2795#elif defined(__SYMBIAN32__)
27da23d5 2796# include "symbian/symbianish.h"
009819bb 2797#elif defined(__HAIKU__)
df00ff3b 2798# include "haiku/haikuish.h"
009819bb 2799#else
19848b3f 2800# include "unixish.h"
13b6e58c
JH
2801#endif
2802
2946a158
JH
2803/* NSIG logic from Configure --> */
2804/* Strange style to avoid deeply-nested #if/#else/#endif */
2805#ifndef NSIG
2806# ifdef _NSIG
2807# define NSIG (_NSIG)
2808# endif
2809#endif
2810
2811#ifndef NSIG
2812# ifdef SIGMAX
2813# define NSIG (SIGMAX+1)
2814# endif
2815#endif
2816
2817#ifndef NSIG
2818# ifdef SIG_MAX
2819# define NSIG (SIG_MAX+1)
2820# endif
2821#endif
2822
2823#ifndef NSIG
2824# ifdef _SIG_MAX
2825# define NSIG (_SIG_MAX+1)
2826# endif
2827#endif
2828
2829#ifndef NSIG
2830# ifdef MAXSIG
2831# define NSIG (MAXSIG+1)
2832# endif
2833#endif
2834
2835#ifndef NSIG
2836# ifdef MAX_SIG
2837# define NSIG (MAX_SIG+1)
2838# endif
2839#endif
2840
2841#ifndef NSIG
2842# ifdef SIGARRAYSIZE
2843# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2844# endif
2845#endif
2846
2847#ifndef NSIG
2848# ifdef _sys_nsig
2849# define NSIG (_sys_nsig) /* Solaris 2.5 */
2850# endif
2851#endif
2852
2853/* Default to some arbitrary number that's big enough to get most
2854 of the common signals.
2855*/
2856#ifndef NSIG
2857# define NSIG 50
2858#endif
2859/* <-- NSIG logic from Configure */
2860
13b6e58c
JH
2861#ifndef NO_ENVIRON_ARRAY
2862# define USE_ENVIRON_ARRAY
2863#endif
32f822de 2864
c77b533b
JH
2865/*
2866 * initialise to avoid floating-point exceptions from overflow, etc
2867 */
2868#ifndef PERL_FPU_INIT
2869# ifdef HAS_FPSETMASK
2870# if HAS_FLOATINGPOINT_H
2871# include <floatingpoint.h>
2872# endif
ad3a8c67
NC
2873/* Some operating systems have this as a macro, which in turn expands to a comma
2874 expression, and the last sub-expression is something that gets calculated,
2875 and then they have the gall to warn that a value computed is not used. Hence
2876 cast to void. */
2877# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2878# else
2f42fcb0 2879# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2880# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2881# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2882# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2883# else
2884# define PERL_FPU_INIT
2f42fcb0 2885
7014c407 2886# endif
c77b533b
JH
2887# endif
2888#endif
b35112e7
CS
2889#ifndef PERL_FPU_PRE_EXEC
2890# define PERL_FPU_PRE_EXEC {
2891# define PERL_FPU_POST_EXEC }
2892#endif
c77b533b 2893
a308b05a
JH
2894/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2895 * We need to reenable the "invalid" trap because otherwise generation
2896 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2897 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2898#ifdef __osf__
2899# include <machine/fpu.h>
2900# define PERL_SYS_FPU_INIT \
2901 STMT_START { \
2902 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2903 signal(SIGFPE, SIG_IGN); \
2904 } STMT_END
2905#endif
2906
2907#ifndef PERL_SYS_FPU_INIT
2908# define PERL_SYS_FPU_INIT NOOP
2909#endif
2910
cbec8ebe
DM
2911#ifndef PERL_SYS_INIT3_BODY
2912# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2913#endif
2914
eb533572 2915/*
dcccc8ff
KW
2916=head1 Miscellaneous Functions
2917
4ad9e498 2918=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2919Provides system-specific tune up of the C runtime environment necessary to
72d33970 2920run Perl interpreters. This should be called only once, before creating
eb533572
DM
2921any Perl interpreters.
2922
4ad9e498 2923=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2924Provides system-specific tune up of the C runtime environment necessary to
72d33970 2925run Perl interpreters. This should be called only once, before creating
eb533572
DM
2926any Perl interpreters.
2927
2928=for apidoc Am|void|PERL_SYS_TERM|
2929Provides system-specific clean up of the C runtime environment after
72d33970 2930running Perl interpreters. This should be called only once, after
eb533572
DM
2931freeing any remaining Perl interpreters.
2932
2933=cut
2934 */
2935
cbec8ebe
DM
2936#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2937#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2938#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2939
be708cc0
JH
2940#ifndef PERL_WRITE_MSG_TO_CONSOLE
2941# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2942#endif
2943
0f31cffe
GS
2944#ifndef MAXPATHLEN
2945# ifdef PATH_MAX
b990c8b2
JH
2946# ifdef _POSIX_PATH_MAX
2947# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2948/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2949 * included the null byte or not. Later amendments of POSIX,
2950 * XPG4, the Austin Group, and the Single UNIX Specification
2951 * all explicitly include the null byte in the PATH_MAX.
2952 * Ditto for _POSIX_PATH_MAX. */
2953# define MAXPATHLEN PATH_MAX
b990c8b2 2954# else
09448d78 2955# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2956# endif
2957# else
2958# define MAXPATHLEN (PATH_MAX+1)
2959# endif
0f31cffe 2960# else
d552bce8 2961# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2962# endif
2963#endif
2964
c80263a8
SH
2965/* In case Configure was not used (we are using a "canned config"
2966 * such as Win32, or a cross-compilation setup, for example) try going
2967 * by the gcc major and minor versions. One useful URL is
2968 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2969 * but contrary to this information warn_unused_result seems
2970 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2971 * Also, when building extensions with an installed perl, this allows
2972 * the user to upgrade gcc and get the right attributes, rather than
2973 * relying on the list generated at Configure time. --AD
c80263a8
SH
2974 * Set these up now otherwise we get confused when some of the <*thread.h>
2975 * includes below indirectly pull in <perlio.h> (which needs to know if we
2976 * have HASATTRIBUTE_FORMAT).
2977 */
2978
4d7c7898 2979#ifndef PERL_MICRO
fc2007d4 2980#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2981# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2982# define HASATTRIBUTE_DEPRECATED
2983# endif
c80263a8
SH
2984# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2985# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2986# if defined __MINGW32__
2987# define PRINTF_FORMAT_NULL_OK
2988# endif
c80263a8
SH
2989# endif
2990# if __GNUC__ >= 3 /* 3.0 -> */
2991# define HASATTRIBUTE_MALLOC
2992# endif
2993# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2994# define HASATTRIBUTE_NONNULL
2995# endif
2996# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2997# define HASATTRIBUTE_NORETURN
2998# endif
2999# if __GNUC__ >= 3 /* gcc 3.0 -> */
3000# define HASATTRIBUTE_PURE
3001# endif
42bf5550 3002# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
3003# define HASATTRIBUTE_UNUSED
3004# endif
d324fe49
AD
3005# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3006# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3007# endif
c80263a8
SH
3008# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3009# define HASATTRIBUTE_WARN_UNUSED_RESULT
3010# endif
3011#endif
00f254e2 3012#endif /* #ifndef PERL_MICRO */
c80263a8 3013
3db8f154 3014/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3015 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
3016 * this results in many functions being undeclared which bothers C++
3017 * May make sense to have threads after "*ish.h" anyway
3018 */
3019
3db8f154 3020#if defined(USE_ITHREADS)
2986a63f
JH
3021# ifdef NETWARE
3022# include <nw5thread.h>
3023# else
32f822de
GS
3024# ifdef WIN32
3025# include <win32thread.h>
3026# else
dd96f567
IZ
3027# ifdef OS2
3028# include "os2thread.h"
3029# else
7f3d1cf1 3030# ifdef I_MACH_CTHREADS
bdd66968 3031# include <mach/cthreads.h>
7f3d1cf1
BH
3032typedef cthread_t perl_os_thread;
3033typedef mutex_t perl_mutex;
3034typedef condition_t perl_cond;
3035typedef void * perl_key;
3036# else /* Posix threads */
1f5ae88c
JH
3037# ifdef I_PTHREAD
3038# include <pthread.h>
3039# endif
7f3d1cf1
BH
3040typedef pthread_t perl_os_thread;
3041typedef pthread_mutex_t perl_mutex;
3042typedef pthread_cond_t perl_cond;
3043typedef pthread_key_t perl_key;
3044# endif /* I_MACH_CTHREADS */
dd96f567 3045# endif /* OS2 */
32f822de 3046# endif /* WIN32 */
ef4abe76 3047# endif /* NETWARE */
3db8f154 3048#endif /* USE_ITHREADS */
c5be433b 3049
66a93824 3050#if defined(WIN32)
1feb2720 3051# include "win32.h"
c5be433b
GS
3052#endif
3053
2986a63f
JH
3054#ifdef NETWARE
3055# include "netware.h"
3056#endif
3057
e5218da5 3058#define STATUS_UNIX PL_statusvalue
68dc0745 3059#ifdef VMS
6b88bc9c 3060# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3061/*
3062 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3063 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3064 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3065 * be updated also.
3066 */
3067# include <stsdef.h>
3068# include <ssdef.h>
3069/* Presume this because if VMS changes it, it will require a new
3070 * set of APIs for waiting on children for binary compatibility.
3071 */
3072# define child_offset_bits (8)
3073# ifndef C_FAC_POSIX
3074# define C_FAC_POSIX 0x35A000
3075# endif
3076
3077/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3078 * platform from the existing UNIX or Native status values.
3079 */
3080
37038d91 3081# define STATUS_EXIT \
7a7fd8e0
JM
3082 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3083 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3084
7a7fd8e0 3085
fb38d079
JM
3086/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3087 * exit code and shifts the UNIX value over the correct number of bits to
3088 * be a child status. Usually the number of bits is 8, but that could be
3089 * platform dependent. The NATIVE status code is presumed to have either
3090 * from a child process.
7a7fd8e0
JM
3091 */
3092
fb38d079
JM
3093/* This is complicated. The child processes return a true native VMS
3094 status which must be saved. But there is an assumption in Perl that
3095 the UNIX child status has some relationship to errno values, so
00f254e2 3096 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3097 In order to get the string translation correct, for the error, errno
3098 must be EVMSERR, but that generates a different text message
3099 than what the test programs are expecting. So an errno value must
3100 be derived from the native status value when an error occurs.
3101 That will hide the true native status message. With this version of
3102 perl, the true native child status can always be retrieved so that
3103 is not a problem. But in this case, Pl_statusvalue and errno may
3104 have different values in them.
3105 */
7a7fd8e0 3106
fb38d079 3107# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3108 STMT_START { \
2fbb330f
JM
3109 I32 evalue = (I32)n; \
3110 if (evalue == EVMSERR) { \
3111 PL_statusvalue_vms = vaxc$errno; \
3112 PL_statusvalue = evalue; \
7a7fd8e0 3113 } else { \
2fbb330f 3114 PL_statusvalue_vms = evalue; \
fb38d079 3115 if (evalue == -1) { \
3280af22 3116 PL_statusvalue = -1; \
7a7fd8e0
JM
3117 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3118 } else \
fb38d079 3119 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3120 set_vaxc_errno(evalue); \
fb38d079
JM
3121 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3122 set_errno(EVMSERR); \
3123 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3124 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3125 } \
68dc0745 3126 } STMT_END
7a7fd8e0 3127
68dc0745 3128# ifdef VMSISH_STATUS
e5218da5 3129# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3130# else
e5218da5 3131# define STATUS_CURRENT STATUS_UNIX
68dc0745 3132# endif
7a7fd8e0
JM
3133
3134 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3135 * the NATIVE status to an equivalent value. Can not be used to translate
3136 * exit code values as exit code values are not guaranteed to have any
3137 * relationship at all to errno values.
3138 * This is used when Perl is forcing errno to have a specific value.
3139 */
e5218da5 3140# define STATUS_UNIX_SET(n) \
68dc0745 3141 STMT_START { \
7a7fd8e0 3142 I32 evalue = (I32)n; \
0968cdad 3143 PL_statusvalue = evalue; \
3280af22 3144 if (PL_statusvalue != -1) { \
0968cdad
JM
3145 if (PL_statusvalue != EVMSERR) { \
3146 PL_statusvalue &= 0xFFFF; \
3147 if (MY_POSIX_EXIT) \
3148 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3149 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3150 } \
3151 else { \
3152 PL_statusvalue_vms = vaxc$errno; \
3153 } \
68dc0745 3154 } \
0968cdad
JM
3155 else PL_statusvalue_vms = SS$_ABORT; \
3156 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3157 } STMT_END
3158
3159 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3160 * the NATIVE error status based on it.
3161 *
3162 * When in the default mode to comply with the Perl VMS documentation,
3163 * 0 is a success and any other code sets the NATIVE status to a failure
3164 * code of SS$_ABORT.
fb38d079
JM
3165 *
3166 * In the new POSIX EXIT mode, native status will be set so that the
3167 * actual exit code will can be retrieved by the calling program or
3168 * shell.
3169 *
3170 * If the exit code is not clearly a UNIX parent or child exit status,
3171 * it will be passed through as a VMS status.
7a7fd8e0
JM
3172 */
3173
fb38d079 3174# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3175 STMT_START { \
3176 I32 evalue = (I32)n; \
3177 PL_statusvalue = evalue; \
e08e1e1d
JM
3178 if (MY_POSIX_EXIT) { \
3179 if (evalue <= 0xFF00) { \
3180 if (evalue > 0xFF) \
3181 evalue = (evalue >> child_offset_bits) & 0xFF; \
3182 PL_statusvalue_vms = \
3183 (C_FAC_POSIX | (evalue << 3 ) | \
3184 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3185 } else /* forgive them Perl, for they have sinned */ \
3186 PL_statusvalue_vms = evalue; \
3187 } else { \
3188 if (evalue == 0) \
3189 PL_statusvalue_vms = SS$_NORMAL; \
3190 else if (evalue <= 0xFF00) \
3191 PL_statusvalue_vms = SS$_ABORT; \
3192 else { /* forgive them Perl, for they have sinned */ \
3193 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3194 else PL_statusvalue_vms = vaxc$errno; \
3195 /* And obviously used a VMS status value instead of UNIX */ \
3196 PL_statusvalue = EVMSERR; \
3197 } \
3198 set_vaxc_errno(PL_statusvalue_vms); \
3199 } \
68dc0745 3200 } STMT_END
fb38d079 3201
e08e1e1d 3202
6ac6a52b
JM
3203 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3204 * and sets the NATIVE error status based on it. This special case
3205 * is needed to maintain compatibility with past VMS behavior.
3206 *
3207 * In the default mode on VMS, this number is passed through as
3208 * both the NATIVE and UNIX status. Which makes it different
3209 * that the STATUS_UNIX_EXIT_SET.
3210 *
3211 * In the new POSIX EXIT mode, native status will be set so that the
3212 * actual exit code will can be retrieved by the calling program or
3213 * shell.
3214 *
1a3aec58
JM
3215 * A POSIX exit code is from 0 to 255. If the exit code is higher
3216 * than this, it needs to be assumed that it is a VMS exit code and
3217 * passed through.
6ac6a52b
JM
3218 */
3219
3220# define STATUS_EXIT_SET(n) \
3221 STMT_START { \
3222 I32 evalue = (I32)n; \
3223 PL_statusvalue = evalue; \
3224 if (MY_POSIX_EXIT) \
1a3aec58
JM
3225 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3226 PL_statusvalue_vms = \
3227 (C_FAC_POSIX | (evalue << 3 ) | \
3228 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3229 else \
3230 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3231 set_vaxc_errno(PL_statusvalue_vms); \
3232 } STMT_END
3233
fb38d079
JM
3234
3235 /* This macro forces a success status */
7a7fd8e0
JM
3236# define STATUS_ALL_SUCCESS \
3237 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3238
3239 /* This macro forces a failure status */
7a7fd8e0
JM
3240# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3241 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3242 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3243
68dc0745 3244#else
e5218da5 3245# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3246# if defined(WCOREDUMP)
37038d91 3247# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3248 STMT_START { \
3249 PL_statusvalue_posix = (n); \
3250 if (PL_statusvalue_posix == -1) \
3251 PL_statusvalue = -1; \
3252 else { \
3253 PL_statusvalue = \
3254 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3255 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3256 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3257 } \
3258 } STMT_END
3259# elif defined(WIFEXITED)
37038d91 3260# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3261 STMT_START { \
3262 PL_statusvalue_posix = (n); \
3263 if (PL_statusvalue_posix == -1) \
3264 PL_statusvalue = -1; \
3265 else { \
3266 PL_statusvalue = \
3267 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3268 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3269 } \
3270 } STMT_END
3271# else
37038d91 3272# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3273 STMT_START { \
3274 PL_statusvalue_posix = (n); \
3275 if (PL_statusvalue_posix == -1) \
3276 PL_statusvalue = -1; \
3277 else { \
3278 PL_statusvalue = \
3279 PL_statusvalue_posix & 0xFFFF; \
3280 } \
3281 } STMT_END
3282# endif
3283# define STATUS_UNIX_SET(n) \
68dc0745 3284 STMT_START { \
3280af22
NIS
3285 PL_statusvalue = (n); \
3286 if (PL_statusvalue != -1) \
3287 PL_statusvalue &= 0xFFFF; \
68dc0745 3288 } STMT_END
7a7fd8e0 3289# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3290# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3291# define STATUS_CURRENT STATUS_UNIX
37038d91 3292# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3293# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3294# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3295#endif
3296
cc3604b1
GS
3297/* flags in PL_exit_flags for nature of exit() */
3298#define PERL_EXIT_EXPECTED 0x01
31d77e54 3299#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3300#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3301#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3302
b79b76e0 3303#ifndef PERL_CORE
a7cb1f99 3304/* format to use for version numbers in file/directory names */
273cf8d1 3305/* XXX move to Configure? */
b79b76e0
NC
3306/* This was only ever used for the current version, and that can be done at
3307 compile time, as PERL_FS_VERSION, so should we just delete it? */
3308# ifndef PERL_FS_VER_FMT
3309# define PERL_FS_VER_FMT "%d.%d.%d"
3310# endif
3311#endif
3312
3313#ifndef PERL_FS_VERSION
3314# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3315#endif
3316
45bc9206 3317/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3318 * performance issue, so we allow people to disable it. Also, if
3319 * we are using stdio, there are broken implementations of fflush(NULL)
3320 * out there, Solaris being the most prominent.
45bc9206
GS
3321 */
3322#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3323# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3324# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3325# else
3326# ifdef FFLUSH_ALL
3327# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3328# else
c5be433b 3329# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3330# endif
66fe083f 3331# endif
45bc9206
GS
3332#endif
3333
7766f137
GS
3334#ifndef PERL_WAIT_FOR_CHILDREN
3335# define PERL_WAIT_FOR_CHILDREN NOOP
3336#endif
3337
ba869deb 3338/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3339#ifndef PERL_SET_INTERP
3340# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3341#endif
3342
3343#ifndef PERL_GET_INTERP
3344# define PERL_GET_INTERP (PL_curinterp)
3345#endif
3346
54aff467 3347#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3348# ifdef MULTIPLICITY
ba869deb 3349# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3350# endif
ba869deb
GS
3351# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3352#endif
3353
00f254e2 3354/*
8896765a 3355 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3356 All that is required is that the perl source does not
00f254e2
KW
3357 use "%-p" or "%-<number>p" or "%<number>p" formats.
3358 These formats will still work in perl code.
486ec47a 3359 See comments in sv.c for further details.
8896765a 3360
8896765a 3361 Robin Barker 2005-07-14
f46d31f2 3362
00f254e2 3363 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3364*/
8896765a
RB
3365
3366#ifndef SVf_
63ce7bf0 3367# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3368#endif
3369
8896765a 3370#ifndef SVf
104abab4 3371# define SVf "-p"
d2560b70
RB
3372#endif
3373
014ead4b 3374#ifndef SVf32
8896765a 3375# define SVf32 SVf_(32)
014ead4b
RB
3376#endif
3377
3378#ifndef SVf256
8896765a
RB
3379# define SVf256 SVf_(256)
3380#endif
3381
be2597df
MHM
3382#define SVfARG(p) ((void*)(p))
3383
20023040
FC
3384#ifndef HEKf
3385# define HEKf "2p"
3386#endif
3387
b8fa5213
FC
3388/* Not ideal, but we cannot easily include a number in an already-numeric
3389 * format sequence. */
3390#ifndef HEKf256
3391# define HEKf256 "3p"
3392#endif
3393
20023040
FC
3394#define HEKfARG(p) ((void*)(p))
3395
b17a0679
FC
3396/* Takes three arguments: is_utf8, length, str */
3397#ifndef UTF8f
61608bb7 3398# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3399#endif
3400#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3401
f46d31f2 3402#ifdef PERL_CORE
486ec47a 3403/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3404# undef UVf
3405#else
170cd9e9
NC
3406# ifndef UVf
3407# define UVf UVuf
3408# endif
d2560b70
RB
3409#endif
3410
fcdf39cf
RGS
3411#ifdef HASATTRIBUTE_DEPRECATED
3412# define __attribute__deprecated__ __attribute__((deprecated))
3413#endif
0dbb1585
AL
3414#ifdef HASATTRIBUTE_FORMAT
3415# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3416#endif
3417#ifdef HASATTRIBUTE_MALLOC
77785eea 3418# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3419#endif
0dbb1585 3420#ifdef HASATTRIBUTE_NONNULL
abb2c242 3421# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3422#endif
0dbb1585 3423#ifdef HASATTRIBUTE_NORETURN
abb2c242 3424# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3425#endif
0dbb1585 3426#ifdef HASATTRIBUTE_PURE
abb2c242 3427# define __attribute__pure__ __attribute__((pure))
f22be1b8 3428#endif
0dbb1585
AL
3429#ifdef HASATTRIBUTE_UNUSED
3430# define __attribute__unused__ __attribute__((unused))
3431#endif
3432#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3433# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3434#endif
3435
0dbb1585 3436/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3437#ifndef __attribute__deprecated__
3438# define __attribute__deprecated__
3439#endif
0dbb1585
AL
3440#ifndef __attribute__format__
3441# define __attribute__format__(x,y,z)
3442#endif
f22be1b8 3443#ifndef __attribute__malloc__
abb2c242 3444# define __attribute__malloc__
f22be1b8
JH
3445#endif
3446#ifndef __attribute__nonnull__
abb2c242 3447# define __attribute__nonnull__(a)
f22be1b8
JH
3448#endif
3449#ifndef __attribute__noreturn__
abb2c242 3450# define __attribute__noreturn__
f22be1b8
JH
3451#endif
3452#ifndef __attribute__pure__
abb2c242 3453# define __attribute__pure__
f22be1b8 3454#endif
0dbb1585
AL
3455#ifndef __attribute__unused__
3456# define __attribute__unused__
3457#endif
f22be1b8 3458#ifndef __attribute__warn_unused_result__
abb2c242
JH
3459# define __attribute__warn_unused_result__
3460#endif
3461
cd13e623
JH
3462#if defined(DEBUGGING) && defined(I_ASSERT)
3463# include <assert.h>
3464#endif
3465
0dbb1585
AL
3466/* For functions that are marked as __attribute__noreturn__, it's not
3467 appropriate to call return. In either case, include the lint directive.
3468 */
3469#ifdef HASATTRIBUTE_NORETURN
ae103e09 3470# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3471#else
ae103e09 3472# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3473#endif
3474
cdfeb707
RB
3475/* Some OS warn on NULL format to printf */
3476#ifdef PRINTF_FORMAT_NULL_OK
3477# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3478#else
00f254e2 3479# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3480#endif
3481
635aebb7 3482#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3483# define EXPECT(expr,val) __builtin_expect(expr,val)
3484#else
3485# define EXPECT(expr,val) (expr)
3486#endif
6d5abc62
NC
3487#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3488#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3489#ifdef HAS_BUILTIN_CHOOSE_EXPR
3490/* placeholder */
3491#endif
b37c2d43 3492
ae103e09
DD
3493
3494#ifndef __has_builtin
3495# define __has_builtin(x) 0 /* not a clang style compiler */
3496#endif
3497
3498/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3499 hint to a compiler about a statement of fact in a function call free
3500 expression, which allows the compiler to generate better machine code.
3501 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3502 the control path is unreachable. In a for loop, ASSUME can be used to hint
3503 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3504 intrinsic function, see its documents for more details.
3505*/
3506
3507#ifndef DEBUGGING
3508# if __has_builtin(__builtin_unreachable) \
3509 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 5) /* 4.5 -> */
3510# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3511# elif defined(_MSC_VER)
3512# define ASSUME(x) __assume(x)
3513# elif defined(__ARMCC_VERSION) /* untested */
3514# define ASSUME(x) __promise(x)
3515# else
3516/* a random compiler might define assert to its own special optimization token
3517 so pass it through to C lib as a last resort */
3518# define ASSUME(x) assert(x)
3519# endif
3520#else
3521# define ASSUME(x) assert(x)
3522#endif
3523
3524#define NOT_REACHED ASSUME(0)
3525
3fc1aec6
PP
3526/* Some unistd.h's give a prototype for pause() even though
3527 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3528 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3529*/
3530#ifdef HAS_PAUSE
3531#define Pause pause
3532#else
3533#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3534#endif
3535
3536#ifndef IOCPARM_LEN
3537# ifdef IOCPARM_MASK
61f1c44b 3538 /* on BSDish systems we're safe */
748a9306
LW
3539# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3540# else
61f1c44b 3541# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3542 /* on Linux systems we're safe; except when we're not [perl #38223] */
3543# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3544# else
748a9306 3545 /* otherwise guess at what's safe */
61f1c44b
JVD
3546# define IOCPARM_LEN(x) 256
3547# endif
748a9306 3548# endif
a0d0e21e
LW
3549#endif
3550
1761cee5 3551#if defined(__CYGWIN__)
521e0776
GS
3552/* USEMYBINMODE
3553 * This symbol, if defined, indicates that the program should
16fe6d59 3554 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3555 * that a file is in "binary" mode -- that is, that no translation
3556 * of bytes occurs on read or write operations.
3557 */
36894f0b 3558# define USEMYBINMODE /**/
77a40698 3559# include <io.h> /* for setmode() prototype */
16fe6d59 3560# define my_binmode(fp, iotype, mode) \
77a40698 3561 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3562#endif
3563
88d10794
JH
3564#ifdef __CYGWIN__
3565void init_os_extras(void);
3566#endif
3567
cea2e8a9
GS
3568#ifdef UNION_ANY_DEFINITION
3569UNION_ANY_DEFINITION;
3570#else
3571union any {
3572 void* any_ptr;
3573 I32 any_i32;
ae103e09 3574 U32 any_u32;
cea2e8a9 3575 IV any_iv;
c6bf6a65 3576 UV any_uv;
cea2e8a9 3577 long any_long;
9febdf04 3578 bool any_bool;
c76ac1ee 3579 void (*any_dptr) (void*);
acfe0abc 3580 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3581};
3582#endif
3583
acfe0abc 3584typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3585
3586#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3587#define FILTER_DATA(idx) \
3588 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3589#define FILTER_ISREADER(idx) \
3590 (PL_parser && PL_parser->rsfp_filters \
3591 && idx >= AvFILLp(PL_parser->rsfp_filters))
3592#define PERL_FILTER_EXISTS(i) \
3593 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3594 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3595
c5078cac
JH
3596#if defined(_AIX) && !defined(_AIX43)
3597#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3598/* We cannot include <crypt.h> to get the struct crypt_data
3599 * because of setkey prototype problems when threading */
3600typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3601 /* From OSF, Not needed in AIX
3602 char C[28], D[28];
3603 */
3604 char E[48];
3605 char KS[16][48];
3606 char block[66];
3607 char iobuf[16];
3608} CRYPTD;
3609#endif /* threading */
3610#endif /* AIX */
3611
e37778c2 3612#if !defined(OS2)
2c2d71f5
JH
3613# include "iperlsys.h"
3614#endif
504f80c1 3615
9c12f1e5 3616#ifdef __LIBCATAMOUNT__
00f254e2 3617#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3618#undef HAS_GROUP
3619#define FAKE_BIT_BUCKET
3620#endif
3621
d10dc2ae
JH
3622/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3623 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3624 * defined by Configure, despite their names being similar to the
3625 * other defines like USE_ITHREADS. Configure in fact knows nothing
3626 * about the randomised hashes. Therefore to enable/disable the hash
3627 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3628#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3629# define USE_HASH_SEED
504f80c1
JH
3630#endif
3631
598921a7
NC
3632/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3633 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3634 * it's not really needed.
3635 */
3636#if defined(WIN32)
3637# define YYTOKENTYPE
3638#endif
3639#include "perly.h"
3640
598921a7 3641
654eccd5
JD
3642/* macros to define bit-fields in structs. */
3643#ifndef PERL_BITFIELD8
3644# define PERL_BITFIELD8 unsigned
3645#endif
3646#ifndef PERL_BITFIELD16
3647# define PERL_BITFIELD16 unsigned
3648#endif
3649#ifndef PERL_BITFIELD32
3650# define PERL_BITFIELD32 unsigned
3651#endif
3652
79072805 3653#include "sv.h"
288b8c02 3654#include "regexp.h"
378cc40b 3655#include "util.h"
8d063cd8 3656#include "form.h"
79072805 3657#include "gv.h"
dd2155a4 3658#include "pad.h"
79072805 3659#include "cv.h"
abdd5c84 3660#include "opnames.h"
79072805 3661#include "op.h"
b3ca2e83 3662#include "hv.h"
79072805
LW
3663#include "cop.h"
3664#include "av.h"
79072805
LW
3665#include "mg.h"
3666#include "scope.h"
4438c4b7 3667#include "warnings.h"
a0ed51b3 3668#include "utf8.h"
8d063cd8 3669
0d7d409d
DM
3670/* these would be in doio.h if there was such a file */
3671#define my_stat() my_stat_flags(SV_GMAGIC)
3672#define my_lstat() my_lstat_flags(SV_GMAGIC)
3673
20f4945e 3674/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3675#undef _XPV_HEAD
3676#undef _XPVMG_HEAD
3677#undef _XPVCV_COMMON
7fae4e64
GS
3678
3679typedef struct _sublex_info SUBLEXINFO;
3680struct _sublex_info {
651b5b28
NC
3681 U8 super_state; /* lexer state to save */
3682 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3683 OP *sub_op; /* "lex_op" to use */
7cc34111 3684 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3685};
3686
199e78b7
DM
3687#include "parser.h"
3688
455ece5e 3689typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3690
2260ab51
KW
3691#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3692
3693/* These have to be predeclared, as they are used in proto.h which is #included
3694 * before their definitions in regcomp.h. */
3695
3696struct scan_data_t;
7dcac5f6
KW
3697typedef struct regnode_charclass regnode_charclass;
3698
2260ab51 3699struct regnode_charclass_class;
d1d040e5
KW
3700
3701/* A hopefully less confusing name. The sub-classes are all Posix classes only
3702 * used under /l matching */
3703typedef struct regnode_charclass_class regnode_charclass_posixl;
3704
b8f7bb16 3705typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW
3706typedef struct RExC_state_t RExC_state_t;
3707struct _reg_trie_data;
76e3520e 3708
2260ab51
KW
3709#endif
3710
5f7fde29
GS
3711struct ptr_tbl_ent {
3712 struct ptr_tbl_ent* next;
53c1dcc0 3713 const void* oldval;
5f7fde29 3714 void* newval;
d18c6117
GS
3715};
3716
5f7fde29
GS
3717struct ptr_tbl {
3718 struct ptr_tbl_ent** tbl_ary;
3719 UV tbl_max;
3720 UV tbl_items;
db93c0c4
NC
3721 struct ptr_tbl_arena *tbl_arena;
3722 struct ptr_tbl_ent *tbl_arena_next;
3723 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS
3724};
3725
fe14fcc3
LW
3726#if defined(htonl) && !defined(HAS_HTONL)
3727#define HAS_HTONL
ae986130 3728#endif
fe14fcc3
LW
3729#if defined(htons) && !defined(HAS_HTONS)
3730#define HAS_HTONS
ae986130 3731#endif