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Need to have frexpl for long doubles.
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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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
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31/* Note that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
33 * with gcc, HAS_C99 will never become true as long as we use -std=c89. */
34#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
35 defined(_STDC_C99)
86a3cabf 36# define HAS_C99 1
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37#endif
38
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39/* See L<perlguts/"The Perl API"> for detailed notes on
40 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
41
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42/* Note that from here --> to <-- the same logic is
43 * repeated in makedef.pl, so be certain to update
44 * both places when editing. */
45
6f4183fe 46#ifdef USE_ITHREADS
acfe0abc 47# if !defined(MULTIPLICITY)
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48# define MULTIPLICITY
49# endif
50#endif
51
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52#ifdef PERL_GLOBAL_STRUCT_PRIVATE
53# ifndef PERL_GLOBAL_STRUCT
54# define PERL_GLOBAL_STRUCT
55# endif
56#endif
97aff369 57
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58#ifdef PERL_GLOBAL_STRUCT
59# ifndef MULTIPLICITY
60# define MULTIPLICITY
61# endif
62#endif
63
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64#ifdef MULTIPLICITY
65# ifndef PERL_IMPLICIT_CONTEXT
66# define PERL_IMPLICIT_CONTEXT
67# endif
68#endif
69
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70/* undef WIN32 when building on Cygwin (for libwin32) - gph */
71#ifdef __CYGWIN__
72# undef WIN32
73# undef _WIN32
74#endif
75
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76#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
77# ifndef SYMBIAN
78# define SYMBIAN
79# endif
80#endif
81
a0fd4948 82#ifdef __SYMBIAN32__
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83# include "symbian/symbian_proto.h"
84#endif
85
86/* Any stack-challenged places. The limit varies (and often
87 * is configurable), but using more than a kilobyte of stack
88 * is usually dubious in these systems. */
739a0b84
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89#if defined(__SYMBIAN32__)
90/* Symbian: need to work around the SDK features. *
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91 * On WINS: MS VC5 generates calls to _chkstk, *
92 * if a "large" stack frame is allocated. *
93 * gcc on MARM does not generate calls like these. */
94# define USE_HEAP_INSTEAD_OF_STACK
95#endif
96
dd134d2c 97/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 98/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 99#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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100# define USE_REENTRANT_API
101#endif
102
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103/* <--- here ends the logic shared by perl.h and makedef.pl */
104
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105/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
106#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
107# define USING_MSVC6
108#endif
109
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110#undef START_EXTERN_C
111#undef END_EXTERN_C
112#undef EXTERN_C
113#ifdef __cplusplus
114# define START_EXTERN_C extern "C" {
115# define END_EXTERN_C }
116# define EXTERN_C extern "C"
117#else
118# define START_EXTERN_C
119# define END_EXTERN_C
120# define EXTERN_C extern
121#endif
122
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123/* Fallback definitions in case we don't have definitions from config.h.
124 This should only matter for systems that don't use Configure and
125 haven't been modified to define PERL_STATIC_INLINE yet.
126*/
127#if !defined(PERL_STATIC_INLINE)
128# ifdef HAS_STATIC_INLINE
129# define PERL_STATIC_INLINE static inline
130# else
131# define PERL_STATIC_INLINE static
132# endif
133#endif
134
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135#ifdef PERL_GLOBAL_STRUCT
136# ifndef PERL_GET_VARS
137# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 138 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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139# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
140# ifndef PERLIO_FUNCS_CONST
141# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
142# endif
143# else
144# define PERL_GET_VARS() PL_VarsPtr
145# endif
146# endif
147#endif
148
5aaab254 149#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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150
151#ifdef PERL_GLOBAL_STRUCT
152# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
153#else
154# define dVAR dNOOP
155#endif
156
c5be433b 157#ifdef PERL_IMPLICIT_CONTEXT
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158# ifndef MULTIPLICITY
159# define MULTIPLICITY
c5be433b 160# endif
e8dda941 161# define tTHX PerlInterpreter*
5aaab254 162# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 163# define aTHX my_perl
9399a70c 164# define aTHXa(a) aTHX = (tTHX)a
27da23d5 165# ifdef PERL_GLOBAL_STRUCT
e8dda941 166# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 167# else
e8dda941 168# define dTHXa(a) pTHX = (tTHX)a
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169# endif
170# ifdef PERL_GLOBAL_STRUCT
171# define dTHX dVAR; pTHX = PERL_GET_THX
172# else
173# define dTHX pTHX = PERL_GET_THX
174# endif
c5be433b 175# define pTHX_ pTHX,
c5be433b 176# define aTHX_ aTHX,
4373e329 177# define pTHX_1 2
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178# define pTHX_2 3
179# define pTHX_3 4
180# define pTHX_4 5
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181# define pTHX_5 6
182# define pTHX_6 7
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183# define pTHX_7 8
184# define pTHX_8 9
185# define pTHX_9 10
a6fc70e5 186# define pTHX_12 13
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187# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
188# define PERL_TRACK_MEMPOOL
189# endif
190#else
191# undef PERL_TRACK_MEMPOOL
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192#endif
193
76e3520e 194#define STATIC static
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195
196#ifndef PERL_CORE
197/* Do not use these macros. They were part of PERL_OBJECT, which was an
198 * implementation of multiplicity using C++ objects. They have been left
199 * here solely for the sake of XS code which has incorrectly
200 * cargo-culted them.
201 */
76e3520e 202#define CPERLscope(x) x
565764a8 203#define CPERLarg void
76e3520e 204#define CPERLarg_
e3b8966e 205#define _CPERLarg
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206#define PERL_OBJECT_THIS
207#define _PERL_OBJECT_THIS
208#define PERL_OBJECT_THIS_
312caa8e 209#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 210#define MEMBER_TO_FPTR(name) name
16c91539 211#endif /* !PERL_CORE */
76e3520e 212
16c91539 213#define CALLRUNOPS PL_runops
f9f4320a 214
3ab4a224 215#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 216
16c91539 217#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 218#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 219 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 220 (strbeg),(minend),(sv),(data),(flags))
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221#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
222 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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223 (strend),(flags),(data))
224#define CALLREG_INTUIT_STRING(prog) \
16c91539 225 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 226
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227#define CALLREGFREE(prog) \
228 Perl_pregfree(aTHX_ (prog))
229
230#define CALLREGFREE_PVT(prog) \
16c91539 231 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 232
2fdbfb4d 233#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 234 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 235
2fdbfb4d 236#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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238
239#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 241
192b9cd1 242#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 243 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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244
245#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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247
248#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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250
251#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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253
254#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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256
257#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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259
260#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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262
263#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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265
266#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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268
269#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 271
49d7dfbc 272#define CALLREG_PACKAGE(rx) \
16c91539 273 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 274
00f254e2 275#if defined(USE_ITHREADS)
f9f4320a 276#define CALLREGDUPE(prog,param) \
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277 Perl_re_dup(aTHX_ (prog),(param))
278
279#define CALLREGDUPE_PVT(prog,param) \
16c91539 280 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 281 : (REGEXP *)NULL)
f9f4320a 282#endif
14dd3ad8 283
a20207d7 284
bcdf7404 285
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286
287
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288/*
289 * Because of backward compatibility reasons the PERL_UNUSED_DECL
290 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
291 *
292 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 293 * which do not have an "inlined" way (like the gcc __attribute__) of
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294 * marking unused variables (they need e.g. a #pragma) and therefore
295 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
296 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
297 *
298 */
1266ad8c 299
9969cdde 300#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 301# ifdef __cplusplus
5ba4cab2 302# define PERL_UNUSED_DECL
5b2bd0a5 303# else
5ba4cab2 304# define PERL_UNUSED_DECL __attribute__((unused))
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305# endif
306#endif
44dbb695 307
5b2bd0a5 308#ifndef PERL_UNUSED_DECL
34659ad4 309# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 310# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 311# else
5ba4cab2 312# define PERL_UNUSED_DECL
b79c357a 313# endif
5b2bd0a5 314#endif
00f254e2 315
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316/* gcc -Wall:
317 * for silencing unused variables that are actually used most of the time,
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318 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
319 * or variables/arguments that are used only in certain configurations.
349b520e 320 */
53c1dcc0 321#ifndef PERL_UNUSED_ARG
c99ffe5e 322# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 323# include <note.h>
53c1dcc0 324# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 325# else
a730e3f2 326# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
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327# endif
328#endif
53c1dcc0 329#ifndef PERL_UNUSED_VAR
a730e3f2 330# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 331#endif
ad73156c 332
23491f1d 333#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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334# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
335#else
336# define PERL_UNUSED_CONTEXT
337#endif
338
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339/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
340 * g++ allows them but seems to have problems with them
341 * (insane errors ensue).
342 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
343 */
344#if defined(PERL_GCC_PEDANTIC) || \
345 (defined(__GNUC__) && defined(__cplusplus) && \
346 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
347# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
348# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
349# endif
350#endif
351
ffea512f 352/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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353 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
354 *
355 * The main reason for this is that the combination of gcc -Wunused-result
356 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
357 * be silenced with casting to void. This causes trouble when the system
358 * header files use the attribute.
359 *
360 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
361 * is there for a good reason: you might lose success/failure information,
362 * or leak resources, or changes in resources.
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363 *
364 * But sometimes you just want to ignore the return value, e.g. on
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365 * codepaths soon ending up in abort, or in "best effort" attempts,
366 * or in situations where there is no good way to handle failures.
ffea512f 367 *
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368 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
369 * another possibility is that you can capture the return value
370 * and use PERL_UNUSED_VAR on that.
ffea512f 371 *
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372 * The __typeof__() is used instead of typeof() since typeof() is not
373 * available under strict C89, and because of compilers masquerading
374 * as gcc (clang and icc), we want exactly the gcc extension
375 * __typeof__ and nothing else.
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376 */
377#ifndef PERL_UNUSED_RESULT
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378# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
379# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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380# else
381# define PERL_UNUSED_RESULT(v) ((void)(v))
382# endif
383#endif
384
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385/* on gcc (and clang), specify that a warning should be temporarily
386 * ignored; e.g.
387 *
388 * GCC_DIAG_IGNORE(-Wmultichar);
389 * char b = 'ab';
390 * GCC_DIAG_RESTORE;
391 *
392 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
393 *
394 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
395 * clang only pretends to be GCC 4.2, but still supports push/pop.
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396 *
397 * Note on usage: on non-gcc (or lookalike, like clang) compilers
398 * one cannot use these at file (global) level without warnings
399 * since they are defined as empty, which leads into the terminating
400 * semicolon being left alone on a line:
401 * ;
402 * which makes compilers mildly cranky. Therefore at file level one
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403 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
404 * the semicolons.
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405 *
406 * (A dead-on-arrival solution would be to try to define the macros as
407 * NOOP or dNOOP, those don't work both inside functions and outside.)
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408 */
409
57d4b8c5 410#if defined(__clang__) || defined(__clang) || \
d28ce8b4 411 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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412# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
413/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 414# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 415 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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416# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
417#else
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418# define GCC_DIAG_IGNORE(w)
419# define GCC_DIAG_RESTORE
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420#endif
421
6f207bd3 422#define NOOP /*EMPTY*/(void)0
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423/* cea2e8a9dd23747f accidentally lost the comment originally from the first
424 check in of thread.h, explaining why we need dNOOP at all: */
425/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
426/* Declaring a *function*, instead of a variable, ensures that we don't rely
427 on being able to suppress "unused" warnings. */
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428#ifdef __cplusplus
429#define dNOOP (void)0
430#else
64a8239e 431#define dNOOP extern int Perl___notused(void)
7db66e12 432#endif
71be2cbc 433
0cb96387 434#ifndef pTHX
a78adc84 435/* Don't bother defining tTHX ; using it outside
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436 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
437 */
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438# define pTHX void
439# define pTHX_
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440# define aTHX
441# define aTHX_
9399a70c 442# define aTHXa(a) NOOP
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443# define dTHXa(a) dNOOP
444# define dTHX dNOOP
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445# define pTHX_1 1
446# define pTHX_2 2
447# define pTHX_3 3
448# define pTHX_4 4
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449# define pTHX_5 5
450# define pTHX_6 6
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451# define pTHX_7 7
452# define pTHX_8 8
453# define pTHX_9 9
a6fc70e5 454# define pTHX_12 12
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455#endif
456
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457#ifndef dVAR
458# define dVAR dNOOP
459#endif
460
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461/* these are only defined for compatibility; should not be used internally */
462#if !defined(pTHXo) && !defined(PERL_CORE)
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463# define pTHXo pTHX
464# define pTHXo_ pTHX_
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465# define aTHXo aTHX
466# define aTHXo_ aTHX_
c5be433b 467# define dTHXo dTHX
71d280e3 468# define dTHXoa(x) dTHXa(x)
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469#endif
470
471#ifndef pTHXx
5aaab254 472# define pTHXx PerlInterpreter *my_perl
0cb96387 473# define pTHXx_ pTHXx,
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474# define aTHXx my_perl
475# define aTHXx_ aTHXx,
c5be433b 476# define dTHXx dTHX
22c35a8c 477#endif
71be2cbc 478
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479/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
480 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
481 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
482#ifdef PERL_IMPLICIT_SYS
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483# ifdef PERL_GLOBAL_STRUCT_PRIVATE
484# define dTHXs dVAR; dTHX
485# else
486# define dTHXs dTHX
487# endif
1de7c2ac 488#else
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489# ifdef PERL_GLOBAL_STRUCT_PRIVATE
490# define dTHXs dVAR
491# else
492# define dTHXs dNOOP
493# endif
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494#endif
495
27da23d5
JH
496/* Some platforms require marking function declarations
497 * for them to be exportable. Used in perlio.h, proto.h
498 * is handled either by the makedef.pl or by defining the
499 * PERL_CALLCONV to be something special. See also the
500 * definition of XS() in XSUB.h. */
501#ifndef PERL_EXPORT_C
a0c21aa1
JH
502# ifdef __cplusplus
503# define PERL_EXPORT_C extern "C"
504# else
505# define PERL_EXPORT_C extern
506# endif
27da23d5
JH
507#endif
508#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH
509# ifdef __cplusplus
510# define PERL_XS_EXPORT_C extern "C"
511# else
512# define PERL_XS_EXPORT_C
513# endif
27da23d5
JH
514#endif
515
5b692037
JH
516#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
517# ifndef PERL_USE_GCC_BRACE_GROUPS
518# define PERL_USE_GCC_BRACE_GROUPS
519# endif
520#endif
521
728e2803
PP
522/*
523 * STMT_START { statements; } STMT_END;
524 * can be used as a single statement, as in
525 * if (x) STMT_START { ... } STMT_END; else ...
526 *
527 * Trying to select a version that gives no warnings...
528 */
529#if !(defined(STMT_START) && defined(STMT_END))
5b692037 530# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 531# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
532# define STMT_END )
533# else
728e2803
PP
534# define STMT_START do
535# define STMT_END while (0)
728e2803
PP
536# endif
537#endif
538
d6f9c181
JH
539#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
540# define BYTEORDER 0x1234
79072805
LW
541#endif
542
543/* Overall memory policy? */
544#ifndef CONSERVATIVE
545# define LIBERAL 1
546#endif
547
8ada0baa
JH
548#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
549#define ASCIIish
550#else
551#undef ASCIIish
552#endif
553
79072805
LW
554/*
555 * The following contortions are brought to you on behalf of all the
556 * standards, semi-standards, de facto standards, not-so-de-facto standards
557 * of the world, as well as all the other botches anyone ever thought of.
558 * The basic theory is that if we work hard enough here, the rest of the
559 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
560 */
ac58e20f 561
ee0007ab 562/* define this once if either system, instead of cluttering up the src */
7c458fae 563#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
564#define DOSISH 1
565#endif
566
739a0b84 567#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
568# define STANDARD_C 1
569#endif
570
8d87852b 571#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
572# define DONT_DECLARE_STD 1
573#endif
574
352d5a3a 575#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 576# define VOL volatile
663a0e37 577#else
79072805 578# define VOL
663a0e37
LW
579#endif
580
284167a5
SM
581/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
582 * you get a perl without taint support, but doubtlessly with a lesser
583 * degree of support. Do not do so unless you know exactly what it means
584 * technically, have a good reason to do so, and know exactly how the
585 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
586 * a potential security risk due to flat out ignoring the security-relevant
587 * taint flags. This being said, a perl without taint support compiled in
588 * has marginal run-time performance benefits.
589 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
590 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
591 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
592 *
593 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 594 * voids your nonexistent warranty!
284167a5 595 */
dc6d7f5c 596#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
597# define NO_TAINT_SUPPORT 1
598#endif
599
600/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
601 * operations into no-ops for a very modest speed-up. Enable only if you
602 * know what you're doing: tests and CPAN modules' tests are bound to fail.
603 */
dc6d7f5c 604#ifdef NO_TAINT_SUPPORT
284167a5
SM
605# define TAINT NOOP
606# define TAINT_NOT NOOP
607# define TAINT_IF(c) NOOP
608# define TAINT_ENV() NOOP
609# define TAINT_PROPER(s) NOOP
610# define TAINT_set(s) NOOP
611# define TAINT_get 0
612# define TAINTING_get 0
613# define TAINTING_set(s) NOOP
614# define TAINT_WARN_get 0
615# define TAINT_WARN_set(s) NOOP
616#else
617# define TAINT (PL_tainted = TRUE)
618# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
619# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
620# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
621# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
622# define TAINT_set(s) (PL_tainted = (s))
623# define TAINT_get (PL_tainted)
624# define TAINTING_get (PL_tainting)
625# define TAINTING_set(s) (PL_tainting = (s))
626# define TAINT_WARN_get (PL_taint_warn)
627# define TAINT_WARN_set(s) (PL_taint_warn = (s))
628#endif
a687059c 629
20be6587
DM
630/* flags used internally only within pp_subst and pp_substcont */
631#ifdef PERL_CORE
632# define SUBST_TAINT_STR 1 /* string tainted */
633# define SUBST_TAINT_PAT 2 /* pattern tainted */
634# define SUBST_TAINT_REPL 4 /* replacement tainted */
635# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
636# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
637#endif
638
d460ef45 639/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
640 defines move there? If so, I could simplify this a lot. --AD 9/96.
641*/
642/* Process group stuff changed from traditional BSD to POSIX.
643 perlfunc.pod documents the traditional BSD-style syntax, so we'll
644 try to preserve that, if possible.
645*/
646#ifdef HAS_SETPGID
647# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 648#else
a6e633de
PP
649# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
650# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
651# else
652# ifdef HAS_SETPGRP2 /* DG/UX */
653# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
654# endif
655# endif
656#endif
657#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
658# define HAS_SETPGRP /* Well, effectively it does . . . */
659#endif
660
661/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
662 our life easier :-) so we'll try it.
663*/
664#ifdef HAS_GETPGID
665# define BSD_GETPGRP(pid) getpgid((pid))
666#else
667# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
668# define BSD_GETPGRP(pid) getpgrp((pid))
669# else
670# ifdef HAS_GETPGRP2 /* DG/UX */
671# define BSD_GETPGRP(pid) getpgrp2((pid))
672# endif
673# endif
674#endif
675#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
676# define HAS_GETPGRP /* Well, effectively it does . . . */
677#endif
678
d460ef45 679/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
680 have different behaviors, but perl.h used to define USE_BSDPGRP
681 (prior to 5.003_05) so some extension might depend on it.
682*/
683#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
684# ifndef USE_BSDPGRP
685# define USE_BSDPGRP
686# endif
663a0e37
LW
687#endif
688
486ec47a 689/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
690 pthread.h must be included before all other header files.
691*/
3db8f154 692#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
693# include <pthread.h>
694#endif
695
58ab9e8b 696#include <sys/types.h>
663a0e37 697
760ac839
LW
698#ifdef __cplusplus
699# ifndef I_STDARG
700# define I_STDARG 1
701# endif
702#endif
703
704#ifdef I_STDARG
705# include <stdarg.h>
706#else
707# ifdef I_VARARGS
708# include <varargs.h>
709# endif
710#endif
711
27db2737
JH
712#ifdef I_STDINT
713# include <stdint.h>
714#endif
715
fe14fcc3 716#include <ctype.h>
a0d0e21e
LW
717
718#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
719#undef METHOD
a0d0e21e
LW
720#endif
721
12ae5dfc
JH
722#ifdef PERL_MICRO
723# define NO_LOCALE
724#endif
725
4633a7c4 726#ifdef I_LOCALE
36477c24 727# include <locale.h>
4633a7c4
LW
728#endif
729
36477c24
PP
730#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
731# define USE_LOCALE
ccd65d51
KW
732# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
733 capability */
36477c24
PP
734# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
735 && defined(HAS_STRXFRM)
736# define USE_LOCALE_COLLATE
737# endif
738# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
739# define USE_LOCALE_CTYPE
740# endif
741# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
742# define USE_LOCALE_NUMERIC
743# endif
fa9b773e
KW
744# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
745# define USE_LOCALE_MESSAGES
746# endif
747# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
748# define USE_LOCALE_MONETARY
749# endif
56e45410
KW
750# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
751# define USE_LOCALE_TIME
752# endif
b385bb4d
KW
753# ifndef WIN32 /* No wrapper except on Windows */
754# define my_setlocale(a,b) setlocale(a,b)
755# endif
36477c24 756#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 757
fe14fcc3 758#include <setjmp.h>
79072805 759
a0d0e21e 760#ifdef I_SYS_PARAM
79072805
LW
761# ifdef PARAM_NEEDS_TYPES
762# include <sys/types.h>
763# endif
764# include <sys/param.h>
352d5a3a 765#endif
79072805 766
ce3470dc
AD
767/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
768 value something like 199306. This may be useful if no more-specific
769 feature test is available.
770*/
771#if defined(BSD)
772# ifndef BSDish
773# define BSDish
774# endif
775#endif
776
79072805 777/* Use all the "standard" definitions? */
a0d0e21e 778#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 779# include <stdlib.h>
ff68c719 780#endif
03a14243 781
3f270f98
JH
782/* If this causes problems, set i_unistd=undef in the hint file. */
783#ifdef I_UNISTD
784# include <unistd.h>
785#endif
786
de8ca8af
NT
787/* for WCOREDUMP */
788#ifdef I_SYS_WAIT
789# include <sys/wait.h>
790#endif
791
9969cdde 792#ifdef __SYMBIAN32__
27da23d5
JH
793# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
794#endif
795
21e89b5f 796#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 797EXTERN_C int syscall(int, ...);
2ef53570
JH
798#endif
799
21e89b5f 800#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 801EXTERN_C int usleep(unsigned int);
2ef53570
JH
802#endif
803
1109a392
MHM
804#ifdef PERL_CORE
805
806/* macros for correct constant construction */
807# if INTSIZE >= 2
808# define U16_CONST(x) ((U16)x##U)
809# else
810# define U16_CONST(x) ((U16)x##UL)
811# endif
812
813# if INTSIZE >= 4
814# define U32_CONST(x) ((U32)x##U)
815# else
816# define U32_CONST(x) ((U32)x##UL)
817# endif
818
819# ifdef HAS_QUAD
820# if INTSIZE >= 8
821# define U64_CONST(x) ((U64)x##U)
822# elif LONGSIZE >= 8
823# define U64_CONST(x) ((U64)x##UL)
824# elif QUADKIND == QUAD_IS_LONG_LONG
825# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
826# elif QUADKIND == QUAD_IS___INT64
827# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
828# else /* best guess we can make */
829# define U64_CONST(x) ((U64)x##UL)
830# endif
831# endif
832
833/* byte-swapping functions for big-/little-endian conversion */
834# define _swab_16_(x) ((U16)( \
835 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
836 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
837
838# define _swab_32_(x) ((U32)( \
839 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
840 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
841 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
842 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
843
844# ifdef HAS_QUAD
845# define _swab_64_(x) ((U64)( \
846 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
847 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
848 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
849 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
850 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
851 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
852 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
853 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
854# endif
855
9c17f24a
NC
856/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
857 at least on FreeBSD. YMMV, so experiment. */
858#ifndef PERL_ARENA_SIZE
859#define PERL_ARENA_SIZE 4080
860#endif
861
ccb2c8b8 862/* Maximum level of recursion */
2b9dff67
RGS
863#ifndef PERL_SUB_DEPTH_WARN
864#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
865#endif
866
1109a392
MHM
867#endif /* PERL_CORE */
868
bdf3085f
NC
869/* We no longer default to creating a new SV for GvSV.
870 Do this before embed. */
871#ifndef PERL_CREATE_GVSV
7459f06b
NC
872# ifndef PERL_DONT_CREATE_GVSV
873# define PERL_DONT_CREATE_GVSV
874# endif
bdf3085f
NC
875#endif
876
ca0c25f6
NC
877#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
878#define PERL_USES_PL_PIDSTATUS
879#endif
880
739a0b84 881#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
882#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
883#endif
884
c31fac66
GS
885#define MEM_SIZE Size_t
886
1936d2a7
NC
887/* Round all values passed to malloc up, by default to a multiple of
888 sizeof(size_t)
889*/
890#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
891#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
892#endif
893
f1200559
WH
894/* sv_grow() will expand strings by at least a certain percentage of
895 the previously *used* length to avoid excessive calls to realloc().
896 The default is 25% of the current length.
897*/
898#ifndef PERL_STRLEN_EXPAND_SHIFT
899# define PERL_STRLEN_EXPAND_SHIFT 2
900#endif
901
3800c318 902#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
903# include <stddef.h>
904# define STRUCT_OFFSET(s,m) offsetof(s,m)
905#else
906# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
907#endif
908
909/* ptrdiff_t is C11, so undef it under pedantic builds */
910#ifdef PERL_GCC_PEDANTIC
911# undef HAS_PTRDIFF_T
51371543
GS
912#endif
913
9969cdde 914#ifndef __SYMBIAN32__
27da23d5
JH
915# if defined(I_STRING) || defined(__cplusplus)
916# include <string.h>
917# else
918# include <strings.h>
919# endif
51371543
GS
920#endif
921
55497cff
PP
922/* This comes after <stdlib.h> so we don't try to change the standard
923 * library prototypes; we'll use our own in proto.h instead. */
03a14243 924
4633a7c4 925#ifdef MYMALLOC
86058a2d 926# ifdef PERL_POLLUTE_MALLOC
ee13e175 927# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
928# define Perl_malloc malloc
929# define Perl_calloc calloc
930# define Perl_realloc realloc
931# define Perl_mfree free
ee13e175 932# endif
86058a2d
GS
933# else
934# define EMBEDMYMALLOC /* for compatibility */
935# endif
827e134a 936
651b9576
GS
937# define safemalloc Perl_malloc
938# define safecalloc Perl_calloc
939# define saferealloc Perl_realloc
940# define safefree Perl_mfree
22f7c9c9
JH
941# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
942 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
943 code; \
944 } STMT_END
945# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
946 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
947# define panic_write2(s) write(2, s, strlen(s))
948# define CHECK_MALLOC_TAINT(newval) \
949 CHECK_MALLOC_TOO_LATE_FOR_( \
950 if (newval) { \
acfd4d8e 951 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 952 exit(1); })
22f7c9c9 953# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 954 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
955 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
956 }} STMT_END;
f2517201
GS
957#else /* MYMALLOC */
958# define safemalloc safesysmalloc
959# define safecalloc safesyscalloc
960# define saferealloc safesysrealloc
961# define safefree safesysfree
22f7c9c9
JH
962# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
963# define CHECK_MALLOC_TAINT(newval) ((void)0)
964# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 965#endif /* MYMALLOC */
4633a7c4 966
fe13d51d 967/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 968#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
969#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
970#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
971#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
972
a0d0e21e
LW
973#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
974#define strchr index
975#define strrchr rindex
976#endif
977
16d20bd9
AD
978#ifdef I_MEMORY
979# include <memory.h>
980#endif
981
fe14fcc3 982#ifdef HAS_MEMCPY
85e6fe83 983# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 984# ifndef memcpy
20ce7b12 985 extern char * memcpy (char*, char*, int);
ee0007ab
LW
986# endif
987# endif
988#else
989# ifndef memcpy
990# ifdef HAS_BCOPY
991# define memcpy(d,s,l) bcopy(s,d,l)
992# else
993# define memcpy(d,s,l) my_bcopy(s,d,l)
994# endif
995# endif
996#endif /* HAS_MEMCPY */
fe14fcc3 997
ee0007ab 998#ifdef HAS_MEMSET
85e6fe83 999# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1000# ifndef memset
20ce7b12 1001 extern char *memset (char*, int, int);
ee0007ab
LW
1002# endif
1003# endif
ee0007ab 1004#else
12ae5dfc 1005# undef memset
fc36a67e 1006# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1007#endif /* HAS_MEMSET */
1008
85e6fe83 1009#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1010# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1011# define memmove(d,s,l) bcopy(s,d,l)
1012# else
2304df62 1013# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1014# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1015# else
79072805 1016# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1017# endif
352d5a3a 1018# endif
d9d8d8de 1019#endif
ee0007ab 1020
36477c24
PP
1021#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1022# undef HAS_MEMCMP
1023#endif
1024
1025#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1026# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1027# ifndef memcmp
20ce7b12 1028 extern int memcmp (char*, char*, int);
ee0007ab
LW
1029# endif
1030# endif
1031#else
1032# ifndef memcmp
ecfc5424 1033# define memcmp my_memcmp
352d5a3a 1034# endif
36477c24 1035#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1036
fc36a67e 1037#ifndef memzero
c635e13b
PP
1038# ifdef HAS_MEMSET
1039# define memzero(d,l) memset(d,0,l)
79072805 1040# else
c635e13b
PP
1041# ifdef HAS_BZERO
1042# define memzero(d,l) bzero(d,l)
79072805 1043# else
fc36a67e 1044# define memzero(d,l) my_bzero(d,l)
79072805
LW
1045# endif
1046# endif
d9d8d8de 1047#endif
378cc40b 1048
2f42fcb0 1049#ifndef PERL_MICRO
0f27ced1
JH
1050#ifndef memchr
1051# ifndef HAS_MEMCHR
1052# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1053# endif
1054#endif
2f42fcb0 1055#endif
0f27ced1 1056
36477c24
PP
1057#ifndef HAS_BCMP
1058# ifndef bcmp
1059# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1060# endif
36477c24 1061#endif /* !HAS_BCMP */
378cc40b 1062
ae986130 1063#ifdef I_NETINET_IN
79072805 1064# include <netinet/in.h>
ae986130
LW
1065#endif
1066
28e8609d
JH
1067#ifdef I_ARPA_INET
1068# include <arpa/inet.h>
1069#endif
1070
1aef975c 1071#ifdef I_SYS_STAT
84902520 1072# include <sys/stat.h>
1aef975c 1073#endif
79072805 1074
287a962e
JD
1075/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1076 This definition should ideally go into win32/win32.h, but S_IFIFO is
1077 used later here in perl.h before win32/win32.h is being included. */
1078#if !defined(S_IFIFO) && defined(_S_IFIFO)
1079# define S_IFIFO _S_IFIFO
1080#endif
1081
cc3315ba 1082/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1083 like UTekV) are broken, sometimes giving false positives. Undefine
1084 them here and let the code below set them to proper values.
1085
1086 The ghs macro stands for GreenHills Software C-1.8.5 which
1087 is the C compiler for sysV88 and the various derivatives.
1088 This header file bug is corrected in gcc-2.5.8 and later versions.
1089 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1090
cc3315ba 1091#if defined(m88k) && defined(ghs)
79072805
LW
1092# undef S_ISDIR
1093# undef S_ISCHR
1094# undef S_ISBLK
1095# undef S_ISREG
1096# undef S_ISFIFO
1097# undef S_ISLNK
ee0007ab 1098#endif
135863df 1099
663a0e37
LW
1100#ifdef I_TIME
1101# include <time.h>
ffed7fef 1102#endif
663a0e37 1103
fe14fcc3 1104#ifdef I_SYS_TIME
85e6fe83 1105# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1106# define KERNEL
1107# endif
1108# include <sys/time.h>
85e6fe83 1109# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1110# undef KERNEL
1111# endif
a687059c 1112#endif
135863df 1113
55497cff 1114#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1115# include <sys/times.h>
d9d8d8de 1116#endif
8d063cd8 1117
fe14fcc3 1118#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1119# undef HAS_STRERROR
663a0e37
LW
1120#endif
1121
1122#include <errno.h>
1e743fda 1123
acfe0abc 1124#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1125# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1126#endif
1127
8cfab5ff 1128/* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
00f254e2 1129 * This is important for using IPv6.
8cfab5ff
JH
1130 * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1131 * a bad idea since it breaks send() and recv(). */
1132#if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1133# define _SOCKADDR_LEN
1134#endif
1135
da70cfc6 1136#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1137# include <sys/socket.h>
1138# if defined(USE_SOCKS) && defined(I_SOCKS)
1139# if !defined(INCLUDE_PROTOTYPES)
1140# define INCLUDE_PROTOTYPES /* for <socks.h> */
1141# define PERL_SOCKS_NEED_PROTOTYPES
1142# endif
1143# include <socks.h>
1144# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1145# undef INCLUDE_PROTOTYPES
1146# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1147# endif
d460ef45 1148# endif
1e743fda 1149# ifdef I_NETDB
2986a63f
JH
1150# ifdef NETWARE
1151# include<stdio.h>
1152# endif
1e743fda
JH
1153# include <netdb.h>
1154# endif
1155# ifndef ENOTSOCK
1156# ifdef I_NET_ERRNO
1157# include <net/errno.h>
1158# endif
1159# endif
1160#endif
1161
fa0a29af 1162/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1163 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1164 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1165#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1166# if defined(__THROW) && defined(__GLIBC__)
1167int sockatmark(int) __THROW;
1168# else
2ef53570 1169int sockatmark(int);
29820b6d 1170# endif
2ef53570
JH
1171#endif
1172
7e827271 1173#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
1174EXTERN_C int fchdir(int);
1175EXTERN_C int flock(int, int);
1176EXTERN_C int fseeko(FILE *, off_t, int);
1177EXTERN_C off_t ftello(FILE *);
1178#endif
1179
7e827271 1180#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1181EXTERN_C char *crypt(const char *, const char *);
7e827271 1182EXTERN_C char **environ;
1ccb7c8d
JH
1183#endif
1184
83a6ff2e 1185#if defined(__cplusplus)
ce3470dc 1186# if defined(BSDish)
b91fbb93 1187EXTERN_C char **environ;
83a6ff2e 1188# elif defined(__CYGWIN__)
667e2948
SP
1189EXTERN_C char *crypt(const char *, const char *);
1190#endif
83a6ff2e 1191#endif
667e2948 1192
1e743fda
JH
1193#ifdef SETERRNO
1194# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1195#endif
f86702cc
PP
1196
1197#ifdef VMS
1198# define SETERRNO(errcode,vmserrcode) \
1199 STMT_START { \
1200 set_errno(errcode); \
1201 set_vaxc_errno(vmserrcode); \
1202 } STMT_END
4ee39169
CS
1203# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1204# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1205# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1206# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1207
93189314
JH
1208# define LIB_INVARG LIB$_INVARG
1209# define RMS_DIR RMS$_DIR
1210# define RMS_FAC RMS$_FAC
1211# define RMS_FEX RMS$_FEX
1212# define RMS_FNF RMS$_FNF
1213# define RMS_IFI RMS$_IFI
1214# define RMS_ISI RMS$_ISI
1215# define RMS_PRV RMS$_PRV
1216# define SS_ACCVIO SS$_ACCVIO
1217# define SS_DEVOFFLINE SS$_DEVOFFLINE
1218# define SS_IVCHAN SS$_IVCHAN
1219# define SS_NORMAL SS$_NORMAL
8a9f18be 1220# define SS_NOPRIV SS$_NOPRIV
748a9306 1221#else
93189314
JH
1222# define LIB_INVARG 0
1223# define RMS_DIR 0
1224# define RMS_FAC 0
1225# define RMS_FEX 0
1226# define RMS_FNF 0
1227# define RMS_IFI 0
1228# define RMS_ISI 0
1229# define RMS_PRV 0
1230# define SS_ACCVIO 0
1231# define SS_DEVOFFLINE 0
1232# define SS_IVCHAN 0
1233# define SS_NORMAL 0
8a9f18be 1234# define SS_NOPRIV 0
748a9306 1235#endif
ed6116ce 1236
6ca940a9
TC
1237#ifdef WIN32
1238# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1239# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1240# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1241# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1242#endif
1243
1244#ifdef OS2
1245# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1246# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1247# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1248# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1249#endif
1250
1251#ifndef SETERRNO
1252# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1253#endif
1254
1255#ifndef dSAVEDERRNO
1256# define dSAVEDERRNO int saved_errno
1257# define dSAVE_ERRNO int saved_errno = errno
1258# define SAVE_ERRNO (saved_errno = errno)
1259# define RESTORE_ERRNO (errno = saved_errno)
1260#endif
1261
f5fa9033 1262#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1263
1264#define CLEAR_ERRSV() STMT_START { \
1265 if (!GvSV(PL_errgv)) { \
1266 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1267 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1268 SvREFCNT_dec(GvSV(PL_errgv)); \
1269 GvSV(PL_errgv) = newSVpvs(""); \
1270 } else { \
1271 SV *const errsv = GvSV(PL_errgv); \
1272 sv_setpvs(errsv, ""); \
1273 if (SvMAGICAL(errsv)) { \
1274 mg_free(errsv); \
1275 } \
1276 SvPOK_only(errsv); \
1277 } \
1278 } STMT_END
1279
1280
414bf5ae
MHM
1281#ifdef PERL_CORE
1282# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1283# define DEFSV_set(sv) \
1284 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1285# define SAVE_DEFSV \
1286 ( \
1287 save_gp(PL_defgv, 0), \
1288 GvINTRO_off(PL_defgv), \
1289 SAVEGENERICSV(GvSV(PL_defgv)), \
1290 GvSV(PL_defgv) = NULL \
1291 )
414bf5ae
MHM
1292#else
1293# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1294# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1295# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1296#endif
38a03e6e 1297
55497cff 1298#ifndef errno
5ff3f7a4
GS
1299 extern int errno; /* ANSI allows errno to be an lvalue expr.
1300 * For example in multithreaded environments
1301 * something like this might happen:
1302 * extern int *_errno(void);
1303 * #define errno (*_errno()) */
d9d8d8de 1304#endif
663a0e37 1305
7e996671
KW
1306#define UNKNOWN_ERRNO_MSG "(unknown)"
1307
2304df62 1308#ifdef HAS_STRERROR
b3e384bf 1309# ifndef DONT_DECLARE_STD
a0d0e21e 1310# ifdef VMS
20ce7b12 1311 char *strerror (int,...);
a0d0e21e 1312# else
20ce7b12 1313 char *strerror (int);
a0d0e21e 1314# endif
b3e384bf
KW
1315# endif
1316# ifndef Strerror
1317# define Strerror strerror
1318# endif
2304df62
AD
1319#else
1320# ifdef HAS_SYS_ERRLIST
79072805
LW
1321 extern int sys_nerr;
1322 extern char *sys_errlist[];
2304df62
AD
1323# ifndef Strerror
1324# define Strerror(e) \
7e996671 1325 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1326# endif
79072805 1327# endif
35c8bce7 1328#endif
663a0e37 1329
2304df62 1330#ifdef I_SYS_IOCTL
79072805
LW
1331# ifndef _IOCTL_
1332# include <sys/ioctl.h>
1333# endif
a687059c
LW
1334#endif
1335
ee0007ab 1336#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1337# ifdef HAS_SOCKETPAIR
1338# undef HAS_SOCKETPAIR
1339# endif
2304df62
AD
1340# ifdef I_NDBM
1341# undef I_NDBM
79072805 1342# endif
a687059c
LW
1343#endif
1344
02fc2eee
NC
1345#ifndef HAS_SOCKETPAIR
1346# ifdef HAS_SOCKET
1347# define socketpair Perl_my_socketpair
1348# endif
1349#endif
1350
a687059c 1351#if INTSIZE == 2
79072805
LW
1352# define htoni htons
1353# define ntohi ntohs
a687059c 1354#else
79072805
LW
1355# define htoni htonl
1356# define ntohi ntohl
a687059c
LW
1357#endif
1358
a0d0e21e 1359/* Configure already sets Direntry_t */
35c8bce7 1360#if defined(I_DIRENT)
663a0e37 1361# include <dirent.h>
ae986130 1362#else
fe14fcc3 1363# ifdef I_SYS_NDIR
79a0689e 1364# include <sys/ndir.h>
663a0e37 1365# else
fe14fcc3 1366# ifdef I_SYS_DIR
79a0689e
LW
1367# ifdef hp9000s500
1368# include <ndir.h> /* may be wrong in the future */
1369# else
1370# include <sys/dir.h>
1371# endif
663a0e37
LW
1372# endif
1373# endif
4633a7c4 1374#endif
a687059c 1375
c623bd54
LW
1376/*
1377 * The following gobbledygook brought to you on behalf of __STDC__.
1378 * (I could just use #ifndef __STDC__, but this is more bulletproof
1379 * in the face of half-implementations.)
1380 */
1381
21e89b5f 1382#if defined(I_SYSMODE)
ca6e1c26
JH
1383#include <sys/mode.h>
1384#endif
1385
c623bd54
LW
1386#ifndef S_IFMT
1387# ifdef _S_IFMT
1388# define S_IFMT _S_IFMT
1389# else
1390# define S_IFMT 0170000
1391# endif
1392#endif
1393
1394#ifndef S_ISDIR
1395# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1396#endif
1397
1398#ifndef S_ISCHR
1399# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1400#endif
1401
1402#ifndef S_ISBLK
fe14fcc3
LW
1403# ifdef S_IFBLK
1404# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1405# else
1406# define S_ISBLK(m) (0)
1407# endif
c623bd54
LW
1408#endif
1409
1410#ifndef S_ISREG
1411# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1412#endif
1413
1414#ifndef S_ISFIFO
fe14fcc3
LW
1415# ifdef S_IFIFO
1416# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1417# else
1418# define S_ISFIFO(m) (0)
1419# endif
c623bd54
LW
1420#endif
1421
1422#ifndef S_ISLNK
1423# ifdef _S_ISLNK
1424# define S_ISLNK(m) _S_ISLNK(m)
1425# else
1426# ifdef _S_IFLNK
1427# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1428# else
1429# ifdef S_IFLNK
1430# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1431# else
1432# define S_ISLNK(m) (0)
1433# endif
1434# endif
1435# endif
1436#endif
1437
1438#ifndef S_ISSOCK
1439# ifdef _S_ISSOCK
1440# define S_ISSOCK(m) _S_ISSOCK(m)
1441# else
1442# ifdef _S_IFSOCK
1443# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1444# else
1445# ifdef S_IFSOCK
1446# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1447# else
1448# define S_ISSOCK(m) (0)
1449# endif
1450# endif
1451# endif
1452#endif
1453
1454#ifndef S_IRUSR
1455# ifdef S_IREAD
1456# define S_IRUSR S_IREAD
1457# define S_IWUSR S_IWRITE
1458# define S_IXUSR S_IEXEC
1459# else
1460# define S_IRUSR 0400
1461# define S_IWUSR 0200
1462# define S_IXUSR 0100
1463# endif
fac7cdfc 1464#endif
1465
1466#ifndef S_IRGRP
1467# ifdef S_IRUSR
1468# define S_IRGRP (S_IRUSR>>3)
1469# define S_IWGRP (S_IWUSR>>3)
1470# define S_IXGRP (S_IXUSR>>3)
1471# else
1472# define S_IRGRP 0040
1473# define S_IWGRP 0020
1474# define S_IXGRP 0010
1475# endif
1476#endif
1477
1478#ifndef S_IROTH
1479# ifdef S_IRUSR
1480# define S_IROTH (S_IRUSR>>6)
1481# define S_IWOTH (S_IWUSR>>6)
1482# define S_IXOTH (S_IXUSR>>6)
1483# else
1484# define S_IROTH 0040
1485# define S_IWOTH 0020
1486# define S_IXOTH 0010
1487# endif
c623bd54
LW
1488#endif
1489
1490#ifndef S_ISUID
1491# define S_ISUID 04000
1492#endif
1493
1494#ifndef S_ISGID
1495# define S_ISGID 02000
1496#endif
1497
ca6e1c26
JH
1498#ifndef S_IRWXU
1499# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1500#endif
ca6e1c26
JH
1501
1502#ifndef S_IRWXG
1503# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1504#endif
ca6e1c26
JH
1505
1506#ifndef S_IRWXO
1507# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1508#endif
ca6e1c26 1509
b6c36746 1510/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1511 * which would get included through <sys/file.h >, but that is 3000
1512 * lines in the future. --jhi */
1513
b6c36746 1514#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1515# define S_IREAD S_IRUSR
1516#endif
1517
b6c36746 1518#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1519# define S_IWRITE S_IWUSR
1520#endif
1521
1522#ifndef S_IEXEC
1523# define S_IEXEC S_IXUSR
1524#endif
1525
a0d0e21e 1526#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1527# define SLOPPYDIVIDE
1528#endif
1529
748a9306
LW
1530#ifdef UV
1531#undef UV
1532#endif
1533
ce582cee
NC
1534/* For the times when you want the return value of sprintf, and you want it
1535 to be the length. Can't have a thread variable passed in, because C89 has
1536 no varargs macros.
1537*/
1538#ifdef SPRINTF_RETURNS_STRLEN
1539# define my_sprintf sprintf
1540#else
1541# define my_sprintf Perl_my_sprintf
1542#endif
1543
5b692037
JH
1544/*
1545 * If we have v?snprintf() and the C99 variadic macros, we can just
1546 * use just the v?snprintf(). It is nice to try to trap the buffer
1547 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1548 * gcc statement expressions, then use the function wrappers which try
1549 * to trap the overflow. If we can use the gcc statement expressions,
1550 * we can try that even with the version that uses the C99 variadic
1551 * macros.
5b692037
JH
1552 */
1553
1208b3dd
JH
1554/* Note that we do not check against snprintf()/vsnprintf() returning
1555 * negative values because that is non-standard behaviour and we use
1556 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1557 * that should be true only if the snprintf()/vsnprintf() are true
1558 * to the standard. */
1559
e8549682
JH
1560#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
1561
dfeee9b1 1562#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1563# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1564# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1565# define PERL_MY_SNPRINTF_GUARDED
5b692037 1566# else
e8549682 1567# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1568# endif
1569#else
1570# define my_snprintf Perl_my_snprintf
1208b3dd 1571# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1572#endif
1573
dfeee9b1 1574#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1575# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1576# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1577# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1578# else
e8549682 1579# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1580# endif
1581#else
1582# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1583# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1584#endif
d9fad198 1585
e8549682
JH
1586/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1587 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1588 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1589 * completely ignore it: otherwise you cannot know whether your output
1590 * was too long.)
1591 *
1592 * int len = my_sprintf(buf, max, ...);
1593 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1594 *
1595 * The trick is that in certain platforms [a] the my_sprintf() already
1596 * contains the sanity check, while in certain platforms [b] it needs
1597 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1598 * platforms the POST_GUARD actually does nothing since the check has
1599 * already been done. Watch out for the max being the same in both calls.
1600 *
1601 * If you actually use the snprintf/vsnprintf return value already,
1602 * you assumedly are checking its validity somehow. But you can
1603 * insert the POST_GUARD() also in that case. */
1604
1605#ifndef PERL_MY_SNPRINTF_GUARDED
1606# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1607#else
1608# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1609#endif
1610
1611#ifndef PERL_MY_VSNPRINTF_GUARDED
1612# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1613#else
1614# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1615#endif
1616
a6cc4119
SP
1617#ifdef HAS_STRLCAT
1618# define my_strlcat strlcat
1619#else
1620# define my_strlcat Perl_my_strlcat
1621#endif
1622
1623#ifdef HAS_STRLCPY
1624# define my_strlcpy strlcpy
1625#else
1626# define my_strlcpy Perl_my_strlcpy
1627#endif
1628
05f13f53 1629/*
27d4fb96
PP
1630 The IV type is supposed to be long enough to hold any integral
1631 value or a pointer.
1632 --Andy Dougherty August 1996
1633*/
1634
a22e52b9
JH
1635typedef IVTYPE IV;
1636typedef UVTYPE UV;
8175356b 1637
10cc9d2a 1638#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1639# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1640# define IV_MAX INT64_MAX
1641# define IV_MIN INT64_MIN
1642# define UV_MAX UINT64_MAX
cae7ae48
JH
1643# ifndef UINT64_MIN
1644# define UINT64_MIN 0
1645# endif
5ff3f7a4
GS
1646# define UV_MIN UINT64_MIN
1647# else
1648# define IV_MAX PERL_QUAD_MAX
1649# define IV_MIN PERL_QUAD_MIN
1650# define UV_MAX PERL_UQUAD_MAX
1651# define UV_MIN PERL_UQUAD_MIN
1652# endif
cf2093f6
JH
1653# define IV_IS_QUAD
1654# define UV_IS_QUAD
79072805 1655#else
8175356b 1656# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1657# define IV_MAX INT32_MAX
1658# define IV_MIN INT32_MIN
716026f9
DL
1659# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1660# define UV_MAX UINT32_MAX
1661# else
1662# define UV_MAX 4294967295U
1663# endif
cae7ae48
JH
1664# ifndef UINT32_MIN
1665# define UINT32_MIN 0
1666# endif
5ff3f7a4
GS
1667# define UV_MIN UINT32_MIN
1668# else
1669# define IV_MAX PERL_LONG_MAX
1670# define IV_MIN PERL_LONG_MIN
1671# define UV_MAX PERL_ULONG_MAX
1672# define UV_MIN PERL_ULONG_MIN
1673# endif
8175356b 1674# if IVSIZE == 8
cf2093f6
JH
1675# define IV_IS_QUAD
1676# define UV_IS_QUAD
de1c2614
JH
1677# ifndef HAS_QUAD
1678# define HAS_QUAD
1679# endif
cf2093f6
JH
1680# else
1681# undef IV_IS_QUAD
1682# undef UV_IS_QUAD
9ea40801 1683#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1684/* We think that removing this decade-old undef this will cause too much
1685 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1686 However, we do need HAS_QUAD in the core for use by the drand48 code,
1687 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1688# undef HAS_QUAD
e25d460c 1689#endif
cf2093f6 1690# endif
79072805 1691#endif
d7d93a81 1692
6313e544
JH
1693#define Size_t_MAX (~(Size_t)0)
1694#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1695
cae7ae48 1696#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1697#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1698
28e5dec8 1699#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1700#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1701#endif
1702
d460ef45 1703/*
26bb67e2
JH
1704 * The macros INT2PTR and NUM2PTR are (despite their names)
1705 * bi-directional: they will convert int/float to or from pointers.
1706 * However the conversion to int/float are named explicitly:
1707 * PTR2IV, PTR2UV, PTR2NV.
1708 *
1709 * For int conversions we do not need two casts if pointers are
1710 * the same size as IV and UV. Otherwise we need an explicit
1711 * cast (PTRV) to avoid compiler warnings.
1712 */
56431972
RB
1713#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1714# define PTRV UV
1715# define INT2PTR(any,d) (any)(d)
1716#else
d460ef45 1717# if PTRSIZE == LONGSIZE
56431972 1718# define PTRV unsigned long
e91e3b10 1719# define PTR2ul(p) (unsigned long)(p)
42718184 1720# else
56431972 1721# define PTRV unsigned
42718184 1722# endif
e91e3b10
RB
1723#endif
1724
1725#ifndef INT2PTR
56431972 1726# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1727#endif
e91e3b10
RB
1728
1729#ifndef PTR2ul
1730# define PTR2ul(p) INT2PTR(unsigned long,p)
1731#endif
1732
56431972
RB
1733#define NUM2PTR(any,d) (any)(PTRV)(d)
1734#define PTR2IV(p) INT2PTR(IV,p)
1735#define PTR2UV(p) INT2PTR(UV,p)
1736#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1737#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1738
8141890a
JH
1739/* According to strict ANSI C89 one cannot freely cast between
1740 * data pointers and function (code) pointers. There are at least
1741 * two ways around this. One (used below) is to do two casts,
1742 * first the other pointer to an (unsigned) integer, and then
1743 * the integer to the other pointer. The other way would be
1744 * to use unions to "overlay" the pointers. For an example of
1745 * the latter technique, see union dirpu in struct xpvio in sv.h.
1746 * The only feasible use is probably temporarily storing
1747 * function pointers in a data pointer (such as a void pointer). */
1748
e91e3b10
RB
1749#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1750#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1751
65202027 1752#ifdef USE_LONG_DOUBLE
1048ea30
JH
1753# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1754# define LONG_DOUBLE_EQUALS_DOUBLE
1755# endif
68d4903c 1756# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1757# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1758# endif
1759#endif
1760
2d4389e4
JH
1761#ifdef OVR_DBL_DIG
1762/* Use an overridden DBL_DIG */
1763# ifdef DBL_DIG
1764# undef DBL_DIG
1765# endif
1766# define DBL_DIG OVR_DBL_DIG
1767#else
1768/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1769 default value for printing floating point numbers in Gconvert
1770 (see config.h). (It also has other uses, such as figuring out if
1771 a given precision of printing can be done with a double instead of
1772 a long double - Allen).
2d4389e4
JH
1773*/
1774#ifdef I_LIMITS
1775#include <limits.h>
1776#endif
1777#ifdef I_FLOAT
1778#include <float.h>
1779#endif
1780#ifndef HAS_DBL_DIG
1781#define DBL_DIG 15 /* A guess that works lots of places */
1782#endif
1783#endif
1784
1785#ifdef OVR_LDBL_DIG
1786/* Use an overridden LDBL_DIG */
1787# ifdef LDBL_DIG
1788# undef LDBL_DIG
1789# endif
1790# define LDBL_DIG OVR_LDBL_DIG
1791#else
1792/* The following is all to get LDBL_DIG, in order to pick a nice
1793 default value for printing floating point numbers in Gconvert.
1794 (see config.h)
1795*/
68d4903c
JH
1796# ifdef I_LIMITS
1797# include <limits.h>
1798# endif
1799# ifdef I_FLOAT
1800# include <float.h>
1801# endif
1802# ifndef HAS_LDBL_DIG
1803# if LONG_DOUBLESIZE == 10
1804# define LDBL_DIG 18 /* assume IEEE */
1805# else
1806# if LONG_DOUBLESIZE == 12
1807# define LDBL_DIG 18 /* gcc? */
1808# else
1809# if LONG_DOUBLESIZE == 16
1810# define LDBL_DIG 33 /* assume IEEE */
1811# else
1812# if LONG_DOUBLESIZE == DOUBLESIZE
1813# define LDBL_DIG DBL_DIG /* bummer */
1814# endif
1815# endif
1816# endif
1817# endif
1818# endif
2d4389e4
JH
1819#endif
1820
20f6aaab
AS
1821/*
1822 * This is for making sure we have a good DBL_MAX value, if possible,
1823 * either for usage as NV_MAX or for usage in figuring out if we can
1824 * fit a given long double into a double, if bug-fixing makes it
1825 * necessary to do so. - Allen <allens@cpan.org>
1826 */
1827
205f51d8
AS
1828#ifdef I_LIMITS
1829# include <limits.h>
20f6aaab
AS
1830#endif
1831
205f51d8
AS
1832#ifdef I_VALUES
1833# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1834# include <values.h>
1835# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1836# define DBL_MAX MAXDOUBLE
1837# endif
1838# if defined(MINDOUBLE) && !defined(DBL_MIN)
1839# define DBL_MIN MINDOUBLE
1840# endif
1841# endif
1842#endif /* defined(I_VALUES) */
1843
a22e52b9 1844typedef NVTYPE NV;
8175356b 1845
792d8dab
JH
1846#ifdef I_IEEEFP
1847# include <ieeefp.h>
1848#endif
923fc586 1849
65202027 1850#ifdef USE_LONG_DOUBLE
923fc586
JH
1851# ifdef I_SUNMATH
1852# include <sunmath.h>
1853# endif
2d4389e4 1854# define NV_DIG LDBL_DIG
d6c14000
JH
1855# ifdef LDBL_MANT_DIG
1856# define NV_MANT_DIG LDBL_MANT_DIG
1857# endif
06fc1729
JH
1858# ifdef LDBL_MIN
1859# define NV_MIN LDBL_MIN
1860# endif
1861# ifdef LDBL_MAX
1862# define NV_MAX LDBL_MAX
1863# endif
40bca5ae
JH
1864# ifdef LDBL_MIN_EXP
1865# define NV_MIN_EXP LDBL_MIN_EXP
1866# endif
1867# ifdef LDBL_MAX_EXP
1868# define NV_MAX_EXP LDBL_MAX_EXP
1869# endif
06fc1729
JH
1870# ifdef LDBL_MIN_10_EXP
1871# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1872# endif
1873# ifdef LDBL_MAX_10_EXP
1874# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1875# endif
1876# ifdef LDBL_EPSILON
1877# define NV_EPSILON LDBL_EPSILON
1878# endif
f4a14a62
JH
1879# ifdef LDBL_MAX
1880# define NV_MAX LDBL_MAX
20f6aaab 1881/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62
JH
1882# else
1883# ifdef HUGE_VALL
1884# define NV_MAX HUGE_VALL
1885# else
1886# ifdef HUGE_VAL
1887# define NV_MAX ((NV)HUGE_VAL)
1888# endif
1889# endif
1890# endif
68d4903c 1891# ifdef HAS_SQRTL
55da5e5b 1892/* These math interfaces are the long double cousins of the C89 math. */
8a00eddc
JH
1893# define Perl_acos acosl
1894# define Perl_asin asinl
1895# define Perl_atan atanl
940e3d56
JH
1896# define Perl_atan2 atan2l
1897# define Perl_ceil ceill
1898# define Perl_cos cosl
8a00eddc 1899# define Perl_cosh coshl
940e3d56 1900# define Perl_exp expl
55da5e5b 1901/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1902# define Perl_floor floorl
1903# define Perl_fmod fmodl
1904# define Perl_log logl
8a00eddc 1905# define Perl_log10 log10l
940e3d56
JH
1906# define Perl_pow powl
1907# define Perl_sin sinl
8a00eddc 1908# define Perl_sinh sinhl
940e3d56 1909# define Perl_sqrt sqrtl
8a00eddc
JH
1910# define Perl_tan tanl
1911# define Perl_tanh tanhl
68d4903c 1912# endif
a3540c92
JH
1913/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1914# ifdef HAS_MODFL
1915# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1916/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1917 prototype in <math.h> */
1918# ifndef HAS_MODFL_PROTO
a221a8a5 1919EXTERN_C long double modfl(long double, long double *);
51997bc3 1920# endif
d67dac15 1921# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1922 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1923# define Perl_modf(x,y) Perl_my_modfl(x,y)
a3540c92
JH
1924# endif
1925# ifdef HAS_FREXPL
dff3e0b8 1926# define Perl_frexp(x,y) frexpl(x,y)
03476e8e
JH
1927# else
1928# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
55954f19 1929 extern long double Perl_my_frexpl(long double x, int *e);
03476e8e
JH
1930# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1931# endif
a3540c92 1932# endif
98181445
JH
1933# ifdef HAS_LDEXPL
1934# define Perl_ldexp(x, y) ldexpl(x,y)
1935# else
1936# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1937# define Perl_ldexp(x,y) scalbnl(x,y)
1938# endif
1939# endif
38dbb4c5 1940# ifndef Perl_isnan
e4c957f4 1941# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1942# define Perl_isnan(x) isnanl(x)
1943# endif
1944# endif
1945# ifndef Perl_isinf
e4c957f4 1946# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1947# define Perl_isinf(x) isinfl(x)
efcbf317
JH
1948# elif defined(LDBL_MAX)
1949# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1950# endif
1951# endif
d3685250 1952# define Perl_isfinite(x) Perl_isfinitel(x)
65202027 1953#else
2d4389e4 1954# define NV_DIG DBL_DIG
d6c14000
JH
1955# ifdef DBL_MANT_DIG
1956# define NV_MANT_DIG DBL_MANT_DIG
1957# endif
06fc1729
JH
1958# ifdef DBL_MIN
1959# define NV_MIN DBL_MIN
1960# endif
1961# ifdef DBL_MAX
1962# define NV_MAX DBL_MAX
1963# endif
40bca5ae
JH
1964# ifdef DBL_MIN_EXP
1965# define NV_MIN_EXP DBL_MIN_EXP
1966# endif
1967# ifdef DBL_MAX_EXP
1968# define NV_MAX_EXP DBL_MAX_EXP
1969# endif
06fc1729
JH
1970# ifdef DBL_MIN_10_EXP
1971# define NV_MIN_10_EXP DBL_MIN_10_EXP
1972# endif
1973# ifdef DBL_MAX_10_EXP
1974# define NV_MAX_10_EXP DBL_MAX_10_EXP
1975# endif
1976# ifdef DBL_EPSILON
1977# define NV_EPSILON DBL_EPSILON
1978# endif
205f51d8 1979# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
1980# define NV_MAX DBL_MAX
1981# define NV_MIN DBL_MIN
1982# else
1983# ifdef HUGE_VAL
1984# define NV_MAX HUGE_VAL
1985# endif
1986# endif
940e3d56 1987
55da5e5b 1988/* These math interfaces are C89. */
8a00eddc
JH
1989# define Perl_acos acos
1990# define Perl_asin asin
1991# define Perl_atan atan
940e3d56
JH
1992# define Perl_atan2 atan2
1993# define Perl_ceil ceil
1994# define Perl_cos cos
8a00eddc 1995# define Perl_cosh cosh
940e3d56 1996# define Perl_exp exp
55da5e5b 1997/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1998# define Perl_floor floor
1999# define Perl_fmod fmod
2000# define Perl_log log
8a00eddc 2001# define Perl_log10 log10
940e3d56
JH
2002# define Perl_pow pow
2003# define Perl_sin sin
8a00eddc 2004# define Perl_sinh sinh
940e3d56 2005# define Perl_sqrt sqrt
8a00eddc
JH
2006# define Perl_tan tan
2007# define Perl_tanh tanh
940e3d56
JH
2008
2009# define Perl_modf(x,y) modf(x,y)
2010# define Perl_frexp(x,y) frexp(x,y)
2011# define Perl_ldexp(x,y) ldexp(x,y)
2012
1a322af2
JH
2013# ifndef Perl_isnan
2014# ifdef HAS_ISNAN
2015# define Perl_isnan(x) isnan(x)
2016# endif
2017# endif
2018# ifndef Perl_isinf
2019# if defined(HAS_ISINF)
2020# define Perl_isinf(x) isinf(x)
efcbf317
JH
2021# elif defined(DBL_MAX)
2022# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2023# endif
2024# endif
2025# ifndef Perl_isfinite
2026# ifdef HAS_ISFINITE
2027# define Perl_isfinite(x) isfinite(x)
2028# elif defined(HAS_FINITE)
2029# define Perl_isfinite(x) finite(x)
99bf9e32
JH
2030# else
2031/* For the infinities the multiplication returns nan,
2032 * for the nan the multiplication also returns nan,
2033 * for everything else (that is, finite) zero should be returned. */
2034# define Perl_isfinite(x) ((x) * 0 == 0)
1a322af2
JH
2035# endif
2036# endif
758a5d79
JH
2037#endif
2038
30404d48
JH
2039/* fpclassify(): C99. It is supposed to be a macro that switches on
2040* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2041#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2042# include <math.h>
25c46df8
JH
2043# if defined(FP_INFINITE) && defined(FP_NAN)
2044# define Perl_fp_class(x) fpclassify(x)
2045# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2046# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2047# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2048# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2049# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2050# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2051/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2052 * actually not the C99 fpclassify, with its own set of return defines. */
2053# define Perl_fp_class(x) fpclassify(x)
2054# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2055# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2056# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2057# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2058# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2059# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2060# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2061# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2062# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2063# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2064# else
2065# undef Perl_fp_class /* Unknown set of defines */
2066# endif
30404d48
JH
2067#endif
2068
25c46df8
JH
2069/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2070 * are identical to the C99 fpclassify(). */
2071#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2072# include <math.h>
558f3e66
CB
2073# ifdef __VMS
2074 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2075# include <fp.h>
56610b8f
CB
2076 /* oh, and the isnormal macro has a typo in it! */
2077# undef isnormal
2078# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2079# endif
25c46df8
JH
2080# if defined(FP_INFINITE) && defined(FP_NAN)
2081# define Perl_fp_class(x) fp_classify(x)
2082# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2083# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2084# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2085# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2086# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2087# else
2088# undef Perl_fp_class /* Unknown set of defines */
2089# endif
f279e099 2090#endif
205f51d8 2091
30404d48
JH
2092/* Feel free to check with me for the SGI manpages, SGI testing,
2093 * etcetera, if you want to try getting this to work with IRIX.
2094 *
2095 * - Allen <allens@cpan.org> */
2096
2097/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2098#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2099/* Solaris and IRIX have fpclass/fpclassl, but they are using
2100 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2101 * Define some symbols also as cpp symbols so we can detect them. */
2102# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2103# define FP_PINF FP_PINF
2104# define FP_QNAN FP_QNAN
2105# endif
f279e099 2106# include <math.h>
758a5d79
JH
2107# ifdef I_IEEFP
2108# include <ieeefp.h>
2109# endif
2110# ifdef I_FP
2111# include <fp.h>
2112# endif
2113# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2114# define Perl_fp_class(x) fpclassl(x)
758a5d79 2115# else
f279e099
JH
2116# define Perl_fp_class(x) fpclass(x)
2117# endif
25c46df8 2118# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2119# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2120# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2121# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2122# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2123# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2124# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2125# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2126# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2127# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2128# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2129# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2130# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2131# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2132# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2133# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2134# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2135# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2136# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2137# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2138# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2139# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2140# else
2141# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2142# endif
758a5d79
JH
2143#endif
2144
30404d48
JH
2145/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2146#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2147# include <math.h>
2148# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2149# include <fp_class.h>
2150# endif
25c46df8
JH
2151# if defined(FP_POS_INF) && defined(FP_QNAN)
2152# ifdef __irix__ /* XXX Configure test instead */
2153# ifdef USE_LONG_DOUBLE
2154# define Perl_fp_class(x) fp_class_l(x)
2155# else
2156# define Perl_fp_class(x) fp_class_d(x)
2157# endif
f279e099 2158# else
25c46df8
JH
2159# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2160# define Perl_fp_class(x) fp_classl(x)
2161# else
2162# define Perl_fp_class(x) fp_class(x)
2163# endif
f279e099 2164# endif
25c46df8
JH
2165# if defined(FP_POS_INF) && defined(FP_QNAN)
2166# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2167# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2168# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2169# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2170# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2171# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2172# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2173# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2174# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2175# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2176# else
25c46df8 2177# undef Perl_fp_class /* Unknown set of defines */
30404d48 2178# endif
f279e099 2179# endif
30404d48
JH
2180#endif
2181
052758ae 2182/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2183#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2184# include <math.h>
25c46df8
JH
2185# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2186# ifndef _cplusplus
2187# define Perl_fp_class(x) class(x)
2188# else
2189# define Perl_fp_class(x) _class(x)
2190# endif
2191# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2192# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2193# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2194# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2195# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2196# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2197# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2198# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2199# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2200# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2201# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2202# else
2203# undef Perl_fp_class /* Unknown set of defines */
2204# endif
758a5d79 2205# endif
30404d48
JH
2206#endif
2207
2208/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2209#ifdef WIN32
2210# ifndef Perl_isnan
2211# define Perl_isnan(x) _isnan(x)
2212# endif
2213# ifndef Perl_isfinite
2214# define Perl_isfinite(x) _finite(x)
2215# endif
2216# ifndef Perl_fp_class_snan
25c46df8
JH
2217/* No simple way to #define Perl_fp_class because _fpclass()
2218 * returns a set of bits. */
796ea9ea
JH
2219# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2220# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2221# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2222# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2223# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2224# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2225# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2226# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2227# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2228# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2229# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2230# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2231# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2232# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2233# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2234# endif
f279e099
JH
2235#endif
2236
2237#if !defined(Perl_fp_class_inf) && \
2238 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2239# define Perl_fp_class_inf(x) \
2240 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2241#endif
2242
2243#if !defined(Perl_fp_class_nan) && \
2244 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2245# define Perl_fp_class_nan(x) \
2246 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2247#endif
2248
2249#if !defined(Perl_fp_class_zero) && \
2250 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2251# define Perl_fp_class_zero(x) \
2252 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2253#endif
2254
2255#if !defined(Perl_fp_class_norm) && \
2256 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2257# define Perl_fp_class_norm(x) \
2258 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2259#endif
2260
2261#if !defined(Perl_fp_class_denorm) && \
2262 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2263# define Perl_fp_class_denorm(x) \
2264 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2265#endif
758a5d79 2266
1a322af2
JH
2267#ifdef UNDER_CE
2268int isnan(double d);
2269#endif
2270
758a5d79 2271#ifndef Perl_isnan
1a322af2
JH
2272# ifdef Perl_fp_class_nan
2273# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2274# else
1a322af2
JH
2275# ifdef HAS_UNORDERED
2276# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2277# else
1a322af2 2278# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2279# endif
2280# endif
2281#endif
2282
1a322af2
JH
2283#ifndef Perl_isinf
2284# ifdef Perl_fp_class_inf
2285# define Perl_isinf(x) Perl_fp_class_inf(x)
2286# endif
ca6c63e1
JH
2287#endif
2288
758a5d79 2289#ifndef Perl_isfinite
25c46df8 2290# if defined(HAS_ISFINITE) && !defined(isfinite)
87190886 2291# define Perl_isfinite(x) isfinite((double)x)
4efd38a4 2292# elif defined(HAS_FINITE)
87190886 2293# define Perl_isfinite(x) finite((double)x)
4efd38a4
JH
2294# elif defined(Perl_fp_class_finite)
2295# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2296# else
4efd38a4
JH
2297/* NaN*0 is NaN, [+-]Inf*0 is NaN, zero for anything else. */
2298# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2299# endif
65202027
DS
2300#endif
2301
25c46df8
JH
2302#ifndef Perl_isinf
2303# if defined(Perl_isfinite) && defined(Perl_isnan)
2304# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2305# endif
2306#endif
2307
d3685250
JH
2308/* We need Perl_isfinitel (ends with ell) (if available) even when
2309 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2310 * needs that. */
2311#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2312/* If isfinite() is a macro and looks like we have C99,
2313 * we assume it's the type-aware C99 isfinite(). */
2314# if defined(isfinite) && defined(HAS_C99)
2315# define Perl_isfinitel(x) isfinite(x)
2316# elif defined(HAS_ISFINITEL)
2317# define Perl_isfinitel(x) isfinitel(x)
2318# elif defined(HAS_FINITEL)
2319# define Perl_isfinitel(x) finitel(x)
2320# elif defined(HAS_INFL) && defined(HAS_NANL)
2321# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2322# else
99bf9e32 2323# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2324# endif
2325#endif
2326
a36244b7
JH
2327/* The default is to use Perl's own atof() implementation (in numeric.c).
2328 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2329 * it is however best to use the native implementation of atof.
2330 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2331 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2332 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2333 * you may need to be using a different function than atof! */
a36244b7
JH
2334
2335#ifndef USE_PERL_ATOF
2336# ifndef _UNICOS
2337# define USE_PERL_ATOF
2338# endif
2339#else
2340# if USE_PERL_ATOF == 0
2341# undef USE_PERL_ATOF
2342# endif
2343#endif
2344
2345#ifdef USE_PERL_ATOF
2346# define Perl_atof(s) Perl_my_atof(s)
2347# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2348#else
2349# define Perl_atof(s) (NV)atof(s)
2350# define Perl_atof2(s, n) ((n) = atof(s))
2351#endif
cf2093f6 2352
d460ef45 2353/* Previously these definitions used hardcoded figures.
760ac839
LW
2354 * It is hoped these formula are more portable, although
2355 * no data one way or another is presently known to me.
2356 * The "PERL_" names are used because these calculated constants
2357 * do not meet the ANSI requirements for LONG_MAX, etc., which
2358 * need to be constants acceptable to #if - kja
2359 * define PERL_LONG_MAX 2147483647L
2360 * define PERL_LONG_MIN (-LONG_MAX - 1)
2361 * define PERL ULONG_MAX 4294967295L
2362 */
2363
2364#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2365# include <limits.h>
760ac839 2366#endif
205f51d8 2367/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2368 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2369
99abf803
PP
2370/*
2371 * Try to figure out max and min values for the integral types. THE CORRECT
2372 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2373 * following hacks are used if neither limits.h or values.h provide them:
2374 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2375 * for types < int: (unsigned TYPE)~(unsigned)0
2376 * The argument to ~ must be unsigned so that later signed->unsigned
2377 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2378 * and it must not be smaller than int because ~ does integral promotion.
2379 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2380 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2381 * The latter is a hack which happens to work on some machines but
2382 * does *not* catch any random system, or things like integer types
2383 * with NaN if that is possible.
2384 *
2385 * All of the types are explicitly cast to prevent accidental loss of
2386 * numeric range, and in the hope that they will be less likely to confuse
2387 * over-eager optimizers.
2388 *
2389 */
27d4fb96 2390
99abf803
PP
2391#define PERL_UCHAR_MIN ((unsigned char)0)
2392
2393#ifdef UCHAR_MAX
2394# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2395#else
99abf803
PP
2396# ifdef MAXUCHAR
2397# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2398# else
99abf803 2399# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2400# endif
2401#endif
d460ef45 2402
99abf803
PP
2403/*
2404 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2405 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2406 * depending on local options. Until Configure detects this (or at least
2407 * detects whether the "signed" keyword is available) the CHAR ranges
2408 * will not be included. UCHAR functions normally.
2409 * - kja
2410 */
27d4fb96 2411
99abf803
PP
2412#define PERL_USHORT_MIN ((unsigned short)0)
2413
2414#ifdef USHORT_MAX
2415# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2416#else
99abf803
PP
2417# ifdef MAXUSHORT
2418# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2419# else
ef2f54b0
CB
2420# ifdef USHRT_MAX
2421# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2422# else
2423# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2424# endif
27d4fb96
PP
2425# endif
2426#endif
2427
27d4fb96 2428#ifdef SHORT_MAX
99abf803 2429# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2430#else
2431# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2432# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2433# else
ef2f54b0
CB
2434# ifdef SHRT_MAX
2435# define PERL_SHORT_MAX ((short)SHRT_MAX)
2436# else
2437# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2438# endif
27d4fb96
PP
2439# endif
2440#endif
2441
2442#ifdef SHORT_MIN
99abf803 2443# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2444#else
2445# ifdef MINSHORT
99abf803 2446# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2447# else
ef2f54b0
CB
2448# ifdef SHRT_MIN
2449# define PERL_SHORT_MIN ((short)SHRT_MIN)
2450# else
2451# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2452# endif
27d4fb96
PP
2453# endif
2454#endif
2455
99abf803
PP
2456#ifdef UINT_MAX
2457# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2458#else
99abf803
PP
2459# ifdef MAXUINT
2460# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2461# else
99abf803 2462# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2463# endif
2464#endif
2465
99abf803 2466#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2467
2468#ifdef INT_MAX
99abf803 2469# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2470#else
2471# ifdef MAXINT /* Often used in <values.h> */
99abf803 2472# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2473# else
99abf803 2474# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2475# endif
2476#endif
2477
2478#ifdef INT_MIN
99abf803 2479# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2480#else
2481# ifdef MININT
99abf803 2482# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2483# else
2484# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2485# endif
2486#endif
2487
99abf803
PP
2488#ifdef ULONG_MAX
2489# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2490#else
99abf803
PP
2491# ifdef MAXULONG
2492# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2493# else
99abf803 2494# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2495# endif
2496#endif
2497
99abf803 2498#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2499
760ac839 2500#ifdef LONG_MAX
99abf803 2501# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2502#else
2503# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2504# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2505# else
99abf803 2506# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2507# endif
2508#endif
2509
2510#ifdef LONG_MIN
99abf803 2511# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2512#else
2513# ifdef MINLONG
99abf803 2514# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2515# else
27d4fb96 2516# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2517# endif
2518#endif
2519
d7d93a81 2520#ifdef UV_IS_QUAD
99abf803 2521
99abf803 2522# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2523# define PERL_UQUAD_MIN ((UV)0)
99abf803 2524# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2525# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2526
79072805
LW
2527#endif
2528
ee0007ab 2529typedef MEM_SIZE STRLEN;
450a55e4 2530
79072805
LW
2531typedef struct op OP;
2532typedef struct cop COP;
2533typedef struct unop UNOP;
2534typedef struct binop BINOP;
2535typedef struct listop LISTOP;
2536typedef struct logop LOGOP;
79072805
LW
2537typedef struct pmop PMOP;
2538typedef struct svop SVOP;
7934575e 2539typedef struct padop PADOP;
79072805 2540typedef struct pvop PVOP;
79072805
LW
2541typedef struct loop LOOP;
2542
7aef8e5b 2543#ifdef PERL_CORE
8be227ab
FC
2544typedef struct opslab OPSLAB;
2545typedef struct opslot OPSLOT;
2546#endif
2547
52db365a 2548typedef struct block_hooks BHK;
1830b3d9 2549typedef struct custom_op XOP;
52db365a 2550
cd1541b2
NC
2551typedef struct interpreter PerlInterpreter;
2552
d2b3f365 2553/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2554#if defined(__sgi)
d2b3f365 2555# define STRUCT_SV perl_sv
b8d3c5db
JH
2556#else
2557# define STRUCT_SV sv
2558#endif
2559typedef struct STRUCT_SV SV;
79072805
LW
2560typedef struct av AV;
2561typedef struct hv HV;
2562typedef struct cv CV;
d2f13c59 2563typedef struct p5rx REGEXP;
79072805 2564typedef struct gp GP;
0c30d9ec 2565typedef struct gv GV;
8990e307 2566typedef struct io IO;
c09156bb 2567typedef struct context PERL_CONTEXT;
79072805
LW
2568typedef struct block BLOCK;
2569
2570typedef struct magic MAGIC;
2571typedef struct xpv XPV;
2572typedef struct xpviv XPVIV;
ff68c719 2573typedef struct xpvuv XPVUV;
79072805
LW
2574typedef struct xpvnv XPVNV;
2575typedef struct xpvmg XPVMG;
2576typedef struct xpvlv XPVLV;
d361b004 2577typedef struct xpvinvlist XINVLIST;
79072805
LW
2578typedef struct xpvav XPVAV;
2579typedef struct xpvhv XPVHV;
2580typedef struct xpvgv XPVGV;
2581typedef struct xpvcv XPVCV;
2582typedef struct xpvbm XPVBM;
2583typedef struct xpvfm XPVFM;
8990e307 2584typedef struct xpvio XPVIO;
79072805
LW
2585typedef struct mgvtbl MGVTBL;
2586typedef union any ANY;
5f7fde29
GS
2587typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2588typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2589typedef struct clone_params CLONE_PARAMS;
2590
35e035cc 2591/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2592 * so hide the type. */
2593typedef struct padlist PADLIST;
67634234 2594typedef AV PAD;
35e035cc
FC
2595typedef AV PADNAMELIST;
2596typedef SV PADNAME;
67634234 2597
13b0f67d
DM
2598/* enable PERL_NEW_COPY_ON_WRITE by default */
2599#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2600# define PERL_NEW_COPY_ON_WRITE
2601#endif
07d01d6e 2602
db2c6cb3
FC
2603#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2604# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2605# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2606# else
2607# define PERL_ANY_COW
2608# endif
9f351b45
DM
2609#else
2610# define PERL_SAWAMPERSAND
db2c6cb3
FC
2611#endif
2612
378cc40b 2613#include "handy.h"
a0d0e21e 2614
6b8eaf93 2615#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2616# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2617# define USE_64_BIT_RAWIO /* implicit */
2618# endif
4564133c
JH
2619#endif
2620
6b8eaf93
JH
2621/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2622 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2623 * however, because operating systems like to do that themself. */
2624#ifndef FSEEKSIZE
2625# ifdef HAS_FSEEKO
2626# define FSEEKSIZE LSEEKSIZE
2627# else
2628# define FSEEKSIZE LONGSIZE
d460ef45 2629# endif
6b8eaf93
JH
2630#endif
2631
2632#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2633# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2634# define USE_64_BIT_STDIO /* implicit */
2635# endif
2636#endif
4564133c 2637
09458382 2638#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2639# ifdef HAS_OFF64_T
2640# undef Off_t
2641# define Off_t off64_t
2642# undef LSEEKSIZE
2643# define LSEEKSIZE 8
5ff3f7a4 2644# endif
d9b3e12d
JH
2645/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2646 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2647 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2648# if defined(USE_OPEN64)
2649# define open open64
5ff3f7a4 2650# endif
d9b3e12d
JH
2651# if defined(USE_LSEEK64)
2652# define lseek lseek64
6b8eaf93
JH
2653# else
2654# if defined(USE_LLSEEK)
2655# define lseek llseek
2656# endif
d9b3e12d
JH
2657# endif
2658# if defined(USE_STAT64)
2659# define stat stat64
2660# endif
2661# if defined(USE_FSTAT64)
2662# define fstat fstat64
2663# endif
2664# if defined(USE_LSTAT64)
2665# define lstat lstat64
2666# endif
2667# if defined(USE_FLOCK64)
2668# define flock flock64
2669# endif
2670# if defined(USE_LOCKF64)
2671# define lockf lockf64
2672# endif
2673# if defined(USE_FCNTL64)
2674# define fcntl fcntl64
2675# endif
2676# if defined(USE_TRUNCATE64)
2677# define truncate truncate64
2678# endif
2679# if defined(USE_FTRUNCATE64)
2680# define ftruncate ftruncate64
2681# endif
2682#endif
2683
2684#ifdef USE_64_BIT_STDIO
2685# ifdef HAS_FPOS64_T
2686# undef Fpos_t
2687# define Fpos_t fpos64_t
2688# endif
2689/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2690 * will trigger defines like the ones below. Some 64-bit environments,
2691 * however, do not. */
2692# if defined(USE_FOPEN64)
2693# define fopen fopen64
2694# endif
2695# if defined(USE_FSEEK64)
6b8eaf93 2696# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2697# endif
2698# if defined(USE_FTELL64)
6b8eaf93 2699# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2700# endif
2701# if defined(USE_FSETPOS64)
2702# define fsetpos fsetpos64
2703# endif
2704# if defined(USE_FGETPOS64)
2705# define fgetpos fgetpos64
2706# endif
2707# if defined(USE_TMPFILE64)
2708# define tmpfile tmpfile64
2709# endif
2710# if defined(USE_FREOPEN64)
2711# define freopen freopen64
5ff3f7a4
GS
2712# endif
2713#endif
2714
e37778c2 2715#if defined(OS2)
2c2d71f5
JH
2716# include "iperlsys.h"
2717#endif
2718
748a9306 2719#ifdef DOSISH
19848b3f
JH
2720# if defined(OS2)
2721# include "os2ish.h"
2722# else
2723# include "dosish.h"
2724# endif
009819bb 2725#elif defined(VMS)
748a9306 2726# include "vmsish.h"
009819bb 2727#elif defined(PLAN9)
19848b3f 2728# include "./plan9/plan9ish.h"
009819bb 2729#elif defined(__VOS__)
196918b0
PG
2730# ifdef __GNUC__
2731# include "./vos/vosish.h"
2732# else
2733# include "vos/vosish.h"
2734# endif
009819bb 2735#elif defined(__SYMBIAN32__)
27da23d5 2736# include "symbian/symbianish.h"
009819bb 2737#elif defined(__HAIKU__)
df00ff3b 2738# include "haiku/haikuish.h"
009819bb 2739#else
19848b3f 2740# include "unixish.h"
13b6e58c
JH
2741#endif
2742
2946a158
JH
2743/* NSIG logic from Configure --> */
2744/* Strange style to avoid deeply-nested #if/#else/#endif */
2745#ifndef NSIG
2746# ifdef _NSIG
2747# define NSIG (_NSIG)
2748# endif
2749#endif
2750
2751#ifndef NSIG
2752# ifdef SIGMAX
2753# define NSIG (SIGMAX+1)
2754# endif
2755#endif
2756
2757#ifndef NSIG
2758# ifdef SIG_MAX
2759# define NSIG (SIG_MAX+1)
2760# endif
2761#endif
2762
2763#ifndef NSIG
2764# ifdef _SIG_MAX
2765# define NSIG (_SIG_MAX+1)
2766# endif
2767#endif
2768
2769#ifndef NSIG
2770# ifdef MAXSIG
2771# define NSIG (MAXSIG+1)
2772# endif
2773#endif
2774
2775#ifndef NSIG
2776# ifdef MAX_SIG
2777# define NSIG (MAX_SIG+1)
2778# endif
2779#endif
2780
2781#ifndef NSIG
2782# ifdef SIGARRAYSIZE
2783# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2784# endif
2785#endif
2786
2787#ifndef NSIG
2788# ifdef _sys_nsig
2789# define NSIG (_sys_nsig) /* Solaris 2.5 */
2790# endif
2791#endif
2792
2793/* Default to some arbitrary number that's big enough to get most
2794 of the common signals.
2795*/
2796#ifndef NSIG
2797# define NSIG 50
2798#endif
2799/* <-- NSIG logic from Configure */
2800
13b6e58c
JH
2801#ifndef NO_ENVIRON_ARRAY
2802# define USE_ENVIRON_ARRAY
2803#endif
32f822de 2804
c77b533b
JH
2805/*
2806 * initialise to avoid floating-point exceptions from overflow, etc
2807 */
2808#ifndef PERL_FPU_INIT
2809# ifdef HAS_FPSETMASK
2810# if HAS_FLOATINGPOINT_H
2811# include <floatingpoint.h>
2812# endif
ad3a8c67
NC
2813/* Some operating systems have this as a macro, which in turn expands to a comma
2814 expression, and the last sub-expression is something that gets calculated,
2815 and then they have the gall to warn that a value computed is not used. Hence
2816 cast to void. */
2817# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2818# else
2f42fcb0 2819# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2820# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2821# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2822# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2823# else
2824# define PERL_FPU_INIT
2f42fcb0 2825
7014c407 2826# endif
c77b533b
JH
2827# endif
2828#endif
b35112e7
CS
2829#ifndef PERL_FPU_PRE_EXEC
2830# define PERL_FPU_PRE_EXEC {
2831# define PERL_FPU_POST_EXEC }
2832#endif
c77b533b 2833
cbec8ebe
DM
2834#ifndef PERL_SYS_INIT3_BODY
2835# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2836#endif
2837
eb533572 2838/*
dcccc8ff
KW
2839=head1 Miscellaneous Functions
2840
4ad9e498 2841=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2842Provides system-specific tune up of the C runtime environment necessary to
72d33970 2843run Perl interpreters. This should be called only once, before creating
eb533572
DM
2844any Perl interpreters.
2845
4ad9e498 2846=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2847Provides system-specific tune up of the C runtime environment necessary to
72d33970 2848run Perl interpreters. This should be called only once, before creating
eb533572
DM
2849any Perl interpreters.
2850
2851=for apidoc Am|void|PERL_SYS_TERM|
2852Provides system-specific clean up of the C runtime environment after
72d33970 2853running Perl interpreters. This should be called only once, after
eb533572
DM
2854freeing any remaining Perl interpreters.
2855
2856=cut
2857 */
2858
cbec8ebe
DM
2859#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2860#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2861#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2862
be708cc0
JH
2863#ifndef PERL_WRITE_MSG_TO_CONSOLE
2864# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2865#endif
2866
0f31cffe
GS
2867#ifndef MAXPATHLEN
2868# ifdef PATH_MAX
b990c8b2
JH
2869# ifdef _POSIX_PATH_MAX
2870# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2871/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2872 * included the null byte or not. Later amendments of POSIX,
2873 * XPG4, the Austin Group, and the Single UNIX Specification
2874 * all explicitly include the null byte in the PATH_MAX.
2875 * Ditto for _POSIX_PATH_MAX. */
2876# define MAXPATHLEN PATH_MAX
b990c8b2 2877# else
09448d78 2878# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2879# endif
2880# else
2881# define MAXPATHLEN (PATH_MAX+1)
2882# endif
0f31cffe 2883# else
d552bce8 2884# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2885# endif
2886#endif
2887
c80263a8
SH
2888/* In case Configure was not used (we are using a "canned config"
2889 * such as Win32, or a cross-compilation setup, for example) try going
2890 * by the gcc major and minor versions. One useful URL is
2891 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2892 * but contrary to this information warn_unused_result seems
2893 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2894 * Also, when building extensions with an installed perl, this allows
2895 * the user to upgrade gcc and get the right attributes, rather than
2896 * relying on the list generated at Configure time. --AD
c80263a8
SH
2897 * Set these up now otherwise we get confused when some of the <*thread.h>
2898 * includes below indirectly pull in <perlio.h> (which needs to know if we
2899 * have HASATTRIBUTE_FORMAT).
2900 */
2901
4d7c7898 2902#ifndef PERL_MICRO
fc2007d4 2903#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2904# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2905# define HASATTRIBUTE_DEPRECATED
2906# endif
c80263a8
SH
2907# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2908# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2909# if defined __MINGW32__
2910# define PRINTF_FORMAT_NULL_OK
2911# endif
c80263a8
SH
2912# endif
2913# if __GNUC__ >= 3 /* 3.0 -> */
2914# define HASATTRIBUTE_MALLOC
2915# endif
2916# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2917# define HASATTRIBUTE_NONNULL
2918# endif
2919# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2920# define HASATTRIBUTE_NORETURN
2921# endif
2922# if __GNUC__ >= 3 /* gcc 3.0 -> */
2923# define HASATTRIBUTE_PURE
2924# endif
42bf5550 2925# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
2926# define HASATTRIBUTE_UNUSED
2927# endif
d324fe49
AD
2928# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2929# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2930# endif
c80263a8
SH
2931# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2932# define HASATTRIBUTE_WARN_UNUSED_RESULT
2933# endif
2934#endif
00f254e2 2935#endif /* #ifndef PERL_MICRO */
c80263a8 2936
3db8f154 2937/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2938 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
2939 * this results in many functions being undeclared which bothers C++
2940 * May make sense to have threads after "*ish.h" anyway
2941 */
2942
3db8f154 2943#if defined(USE_ITHREADS)
2986a63f
JH
2944# ifdef NETWARE
2945# include <nw5thread.h>
2946# else
32f822de
GS
2947# ifdef WIN32
2948# include <win32thread.h>
2949# else
dd96f567
IZ
2950# ifdef OS2
2951# include "os2thread.h"
2952# else
7f3d1cf1 2953# ifdef I_MACH_CTHREADS
bdd66968 2954# include <mach/cthreads.h>
7f3d1cf1
BH
2955typedef cthread_t perl_os_thread;
2956typedef mutex_t perl_mutex;
2957typedef condition_t perl_cond;
2958typedef void * perl_key;
2959# else /* Posix threads */
1f5ae88c
JH
2960# ifdef I_PTHREAD
2961# include <pthread.h>
2962# endif
7f3d1cf1
BH
2963typedef pthread_t perl_os_thread;
2964typedef pthread_mutex_t perl_mutex;
2965typedef pthread_cond_t perl_cond;
2966typedef pthread_key_t perl_key;
2967# endif /* I_MACH_CTHREADS */
dd96f567 2968# endif /* OS2 */
32f822de 2969# endif /* WIN32 */
ef4abe76 2970# endif /* NETWARE */
3db8f154 2971#endif /* USE_ITHREADS */
c5be433b 2972
66a93824 2973#if defined(WIN32)
1feb2720 2974# include "win32.h"
c5be433b
GS
2975#endif
2976
2986a63f
JH
2977#ifdef NETWARE
2978# include "netware.h"
2979#endif
2980
e5218da5 2981#define STATUS_UNIX PL_statusvalue
68dc0745 2982#ifdef VMS
6b88bc9c 2983# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
2984/*
2985 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2986 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
2987 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2988 * be updated also.
2989 */
2990# include <stsdef.h>
2991# include <ssdef.h>
2992/* Presume this because if VMS changes it, it will require a new
2993 * set of APIs for waiting on children for binary compatibility.
2994 */
2995# define child_offset_bits (8)
2996# ifndef C_FAC_POSIX
2997# define C_FAC_POSIX 0x35A000
2998# endif
2999
3000/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3001 * platform from the existing UNIX or Native status values.
3002 */
3003
37038d91 3004# define STATUS_EXIT \
7a7fd8e0
JM
3005 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3006 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3007
7a7fd8e0 3008
fb38d079
JM
3009/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3010 * exit code and shifts the UNIX value over the correct number of bits to
3011 * be a child status. Usually the number of bits is 8, but that could be
3012 * platform dependent. The NATIVE status code is presumed to have either
3013 * from a child process.
7a7fd8e0
JM
3014 */
3015
fb38d079
JM
3016/* This is complicated. The child processes return a true native VMS
3017 status which must be saved. But there is an assumption in Perl that
3018 the UNIX child status has some relationship to errno values, so
00f254e2 3019 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3020 In order to get the string translation correct, for the error, errno
3021 must be EVMSERR, but that generates a different text message
3022 than what the test programs are expecting. So an errno value must
3023 be derived from the native status value when an error occurs.
3024 That will hide the true native status message. With this version of
3025 perl, the true native child status can always be retrieved so that
3026 is not a problem. But in this case, Pl_statusvalue and errno may
3027 have different values in them.
3028 */
7a7fd8e0 3029
fb38d079 3030# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3031 STMT_START { \
2fbb330f
JM
3032 I32 evalue = (I32)n; \
3033 if (evalue == EVMSERR) { \
3034 PL_statusvalue_vms = vaxc$errno; \
3035 PL_statusvalue = evalue; \
7a7fd8e0 3036 } else { \
2fbb330f 3037 PL_statusvalue_vms = evalue; \
fb38d079 3038 if (evalue == -1) { \
3280af22 3039 PL_statusvalue = -1; \
7a7fd8e0
JM
3040 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3041 } else \
fb38d079 3042 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3043 set_vaxc_errno(evalue); \
fb38d079
JM
3044 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3045 set_errno(EVMSERR); \
3046 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3047 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3048 } \
68dc0745 3049 } STMT_END
7a7fd8e0 3050
68dc0745 3051# ifdef VMSISH_STATUS
e5218da5 3052# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3053# else
e5218da5 3054# define STATUS_CURRENT STATUS_UNIX
68dc0745 3055# endif
7a7fd8e0
JM
3056
3057 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3058 * the NATIVE status to an equivalent value. Can not be used to translate
3059 * exit code values as exit code values are not guaranteed to have any
3060 * relationship at all to errno values.
3061 * This is used when Perl is forcing errno to have a specific value.
3062 */
e5218da5 3063# define STATUS_UNIX_SET(n) \
68dc0745 3064 STMT_START { \
7a7fd8e0 3065 I32 evalue = (I32)n; \
0968cdad 3066 PL_statusvalue = evalue; \
3280af22 3067 if (PL_statusvalue != -1) { \
0968cdad
JM
3068 if (PL_statusvalue != EVMSERR) { \
3069 PL_statusvalue &= 0xFFFF; \
3070 if (MY_POSIX_EXIT) \
3071 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3072 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3073 } \
3074 else { \
3075 PL_statusvalue_vms = vaxc$errno; \
3076 } \
68dc0745 3077 } \
0968cdad
JM
3078 else PL_statusvalue_vms = SS$_ABORT; \
3079 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3080 } STMT_END
3081
3082 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3083 * the NATIVE error status based on it.
3084 *
3085 * When in the default mode to comply with the Perl VMS documentation,
3086 * 0 is a success and any other code sets the NATIVE status to a failure
3087 * code of SS$_ABORT.
fb38d079
JM
3088 *
3089 * In the new POSIX EXIT mode, native status will be set so that the
3090 * actual exit code will can be retrieved by the calling program or
3091 * shell.
3092 *
3093 * If the exit code is not clearly a UNIX parent or child exit status,
3094 * it will be passed through as a VMS status.
7a7fd8e0
JM
3095 */
3096
fb38d079 3097# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3098 STMT_START { \
3099 I32 evalue = (I32)n; \
3100 PL_statusvalue = evalue; \
e08e1e1d
JM
3101 if (MY_POSIX_EXIT) { \
3102 if (evalue <= 0xFF00) { \
3103 if (evalue > 0xFF) \
3104 evalue = (evalue >> child_offset_bits) & 0xFF; \
3105 PL_statusvalue_vms = \
3106 (C_FAC_POSIX | (evalue << 3 ) | \
3107 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3108 } else /* forgive them Perl, for they have sinned */ \
3109 PL_statusvalue_vms = evalue; \
3110 } else { \
3111 if (evalue == 0) \
3112 PL_statusvalue_vms = SS$_NORMAL; \
3113 else if (evalue <= 0xFF00) \
3114 PL_statusvalue_vms = SS$_ABORT; \
3115 else { /* forgive them Perl, for they have sinned */ \
3116 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3117 else PL_statusvalue_vms = vaxc$errno; \
3118 /* And obviously used a VMS status value instead of UNIX */ \
3119 PL_statusvalue = EVMSERR; \
3120 } \
3121 set_vaxc_errno(PL_statusvalue_vms); \
3122 } \
68dc0745 3123 } STMT_END
fb38d079 3124
e08e1e1d 3125
6ac6a52b
JM
3126 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3127 * and sets the NATIVE error status based on it. This special case
3128 * is needed to maintain compatibility with past VMS behavior.
3129 *
3130 * In the default mode on VMS, this number is passed through as
3131 * both the NATIVE and UNIX status. Which makes it different
3132 * that the STATUS_UNIX_EXIT_SET.
3133 *
3134 * In the new POSIX EXIT mode, native status will be set so that the
3135 * actual exit code will can be retrieved by the calling program or
3136 * shell.
3137 *
1a3aec58
JM
3138 * A POSIX exit code is from 0 to 255. If the exit code is higher
3139 * than this, it needs to be assumed that it is a VMS exit code and
3140 * passed through.
6ac6a52b
JM
3141 */
3142
3143# define STATUS_EXIT_SET(n) \
3144 STMT_START { \
3145 I32 evalue = (I32)n; \
3146 PL_statusvalue = evalue; \
3147 if (MY_POSIX_EXIT) \
1a3aec58
JM
3148 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3149 PL_statusvalue_vms = \
3150 (C_FAC_POSIX | (evalue << 3 ) | \
3151 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3152 else \
3153 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3154 set_vaxc_errno(PL_statusvalue_vms); \
3155 } STMT_END
3156
fb38d079
JM
3157
3158 /* This macro forces a success status */
7a7fd8e0
JM
3159# define STATUS_ALL_SUCCESS \
3160 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3161
3162 /* This macro forces a failure status */
7a7fd8e0
JM
3163# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3164 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3165 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3166
68dc0745 3167#else
e5218da5 3168# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3169# if defined(WCOREDUMP)
37038d91 3170# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3171 STMT_START { \
3172 PL_statusvalue_posix = (n); \
3173 if (PL_statusvalue_posix == -1) \
3174 PL_statusvalue = -1; \
3175 else { \
3176 PL_statusvalue = \
3177 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3178 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3179 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3180 } \
3181 } STMT_END
3182# elif defined(WIFEXITED)
37038d91 3183# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3184 STMT_START { \
3185 PL_statusvalue_posix = (n); \
3186 if (PL_statusvalue_posix == -1) \
3187 PL_statusvalue = -1; \
3188 else { \
3189 PL_statusvalue = \
3190 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3191 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3192 } \
3193 } STMT_END
3194# else
37038d91 3195# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3196 STMT_START { \
3197 PL_statusvalue_posix = (n); \
3198 if (PL_statusvalue_posix == -1) \
3199 PL_statusvalue = -1; \
3200 else { \
3201 PL_statusvalue = \
3202 PL_statusvalue_posix & 0xFFFF; \
3203 } \
3204 } STMT_END
3205# endif
3206# define STATUS_UNIX_SET(n) \
68dc0745 3207 STMT_START { \
3280af22
NIS
3208 PL_statusvalue = (n); \
3209 if (PL_statusvalue != -1) \
3210 PL_statusvalue &= 0xFFFF; \
68dc0745 3211 } STMT_END
7a7fd8e0 3212# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3213# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3214# define STATUS_CURRENT STATUS_UNIX
37038d91 3215# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3216# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3217# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3218#endif
3219
cc3604b1
GS
3220/* flags in PL_exit_flags for nature of exit() */
3221#define PERL_EXIT_EXPECTED 0x01
31d77e54 3222#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3223#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3224#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3225
b79b76e0 3226#ifndef PERL_CORE
a7cb1f99 3227/* format to use for version numbers in file/directory names */
273cf8d1 3228/* XXX move to Configure? */
b79b76e0
NC
3229/* This was only ever used for the current version, and that can be done at
3230 compile time, as PERL_FS_VERSION, so should we just delete it? */
3231# ifndef PERL_FS_VER_FMT
3232# define PERL_FS_VER_FMT "%d.%d.%d"
3233# endif
3234#endif
3235
3236#ifndef PERL_FS_VERSION
3237# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3238#endif
3239
45bc9206 3240/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3241 * performance issue, so we allow people to disable it. Also, if
3242 * we are using stdio, there are broken implementations of fflush(NULL)
3243 * out there, Solaris being the most prominent.
45bc9206
GS
3244 */
3245#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3246# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3247# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3248# else
3249# ifdef FFLUSH_ALL
3250# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3251# else
c5be433b 3252# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3253# endif
66fe083f 3254# endif
45bc9206
GS
3255#endif
3256
7766f137
GS
3257#ifndef PERL_WAIT_FOR_CHILDREN
3258# define PERL_WAIT_FOR_CHILDREN NOOP
3259#endif
3260
ba869deb 3261/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3262#ifndef PERL_SET_INTERP
3263# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3264#endif
3265
3266#ifndef PERL_GET_INTERP
3267# define PERL_GET_INTERP (PL_curinterp)
3268#endif
3269
54aff467 3270#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3271# ifdef MULTIPLICITY
ba869deb 3272# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3273# endif
ba869deb
GS
3274# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3275#endif
3276
00f254e2 3277/*
8896765a 3278 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3279 All that is required is that the perl source does not
00f254e2
KW
3280 use "%-p" or "%-<number>p" or "%<number>p" formats.
3281 These formats will still work in perl code.
486ec47a 3282 See comments in sv.c for further details.
8896765a 3283
8896765a 3284 Robin Barker 2005-07-14
f46d31f2 3285
00f254e2 3286 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3287*/
8896765a
RB
3288
3289#ifndef SVf_
63ce7bf0 3290# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3291#endif
3292
8896765a 3293#ifndef SVf
104abab4 3294# define SVf "-p"
d2560b70
RB
3295#endif
3296
014ead4b 3297#ifndef SVf32
8896765a 3298# define SVf32 SVf_(32)
014ead4b
RB
3299#endif
3300
3301#ifndef SVf256
8896765a
RB
3302# define SVf256 SVf_(256)
3303#endif
3304
be2597df
MHM
3305#define SVfARG(p) ((void*)(p))
3306
20023040
FC
3307#ifndef HEKf
3308# define HEKf "2p"
3309#endif
3310
b8fa5213
FC
3311/* Not ideal, but we cannot easily include a number in an already-numeric
3312 * format sequence. */
3313#ifndef HEKf256
3314# define HEKf256 "3p"
3315#endif
3316
20023040
FC
3317#define HEKfARG(p) ((void*)(p))
3318
b17a0679
FC
3319/* Takes three arguments: is_utf8, length, str */
3320#ifndef UTF8f
61608bb7 3321# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3322#endif
3323#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3324
f46d31f2 3325#ifdef PERL_CORE
486ec47a 3326/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3327# undef UVf
3328#else
170cd9e9
NC
3329# ifndef UVf
3330# define UVf UVuf
3331# endif
d2560b70
RB
3332#endif
3333
fcdf39cf
RGS
3334#ifdef HASATTRIBUTE_DEPRECATED
3335# define __attribute__deprecated__ __attribute__((deprecated))
3336#endif
0dbb1585
AL
3337#ifdef HASATTRIBUTE_FORMAT
3338# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3339#endif
3340#ifdef HASATTRIBUTE_MALLOC
77785eea 3341# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3342#endif
0dbb1585 3343#ifdef HASATTRIBUTE_NONNULL
abb2c242 3344# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3345#endif
0dbb1585 3346#ifdef HASATTRIBUTE_NORETURN
abb2c242 3347# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3348#endif
0dbb1585 3349#ifdef HASATTRIBUTE_PURE
abb2c242 3350# define __attribute__pure__ __attribute__((pure))
f22be1b8 3351#endif
0dbb1585
AL
3352#ifdef HASATTRIBUTE_UNUSED
3353# define __attribute__unused__ __attribute__((unused))
3354#endif
3355#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3356# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3357#endif
3358
0dbb1585 3359/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3360#ifndef __attribute__deprecated__
3361# define __attribute__deprecated__
3362#endif
0dbb1585
AL
3363#ifndef __attribute__format__
3364# define __attribute__format__(x,y,z)
3365#endif
f22be1b8 3366#ifndef __attribute__malloc__
abb2c242 3367# define __attribute__malloc__
f22be1b8
JH
3368#endif
3369#ifndef __attribute__nonnull__
abb2c242 3370# define __attribute__nonnull__(a)
f22be1b8
JH
3371#endif
3372#ifndef __attribute__noreturn__
abb2c242 3373# define __attribute__noreturn__
f22be1b8
JH
3374#endif
3375#ifndef __attribute__pure__
abb2c242 3376# define __attribute__pure__
f22be1b8 3377#endif
0dbb1585
AL
3378#ifndef __attribute__unused__
3379# define __attribute__unused__
3380#endif
f22be1b8 3381#ifndef __attribute__warn_unused_result__
abb2c242
JH
3382# define __attribute__warn_unused_result__
3383#endif
3384
cd13e623
JH
3385#if defined(DEBUGGING) && defined(I_ASSERT)
3386# include <assert.h>
3387#endif
3388
0dbb1585
AL
3389/* For functions that are marked as __attribute__noreturn__, it's not
3390 appropriate to call return. In either case, include the lint directive.
3391 */
3392#ifdef HASATTRIBUTE_NORETURN
ae103e09 3393# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3394#else
ae103e09 3395# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3396#endif
3397
cdfeb707
RB
3398/* Some OS warn on NULL format to printf */
3399#ifdef PRINTF_FORMAT_NULL_OK
3400# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3401#else
00f254e2 3402# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3403#endif
3404
635aebb7 3405#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3406# define EXPECT(expr,val) __builtin_expect(expr,val)
3407#else
3408# define EXPECT(expr,val) (expr)
3409#endif
6d5abc62
NC
3410#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3411#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3412#ifdef HAS_BUILTIN_CHOOSE_EXPR
3413/* placeholder */
3414#endif
b37c2d43 3415
ae103e09
DD
3416
3417#ifndef __has_builtin
3418# define __has_builtin(x) 0 /* not a clang style compiler */
3419#endif
3420
3421/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3422 hint to a compiler about a statement of fact in a function call free
3423 expression, which allows the compiler to generate better machine code.
3424 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3425 the control path is unreachable. In a for loop, ASSUME can be used to hint
3426 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3427 intrinsic function, see its documents for more details.
3428*/
3429
3430#ifndef DEBUGGING
3431# if __has_builtin(__builtin_unreachable) \
3432 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 5) /* 4.5 -> */
3433# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3434# elif defined(_MSC_VER)
3435# define ASSUME(x) __assume(x)
3436# elif defined(__ARMCC_VERSION) /* untested */
3437# define ASSUME(x) __promise(x)
3438# else
3439/* a random compiler might define assert to its own special optimization token
3440 so pass it through to C lib as a last resort */
3441# define ASSUME(x) assert(x)
3442# endif
3443#else
3444# define ASSUME(x) assert(x)
3445#endif
3446
3447#define NOT_REACHED ASSUME(0)
3448
3fc1aec6
PP
3449/* Some unistd.h's give a prototype for pause() even though
3450 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3451 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3452*/
3453#ifdef HAS_PAUSE
3454#define Pause pause
3455#else
3456#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3457#endif
3458
3459#ifndef IOCPARM_LEN
3460# ifdef IOCPARM_MASK
61f1c44b 3461 /* on BSDish systems we're safe */
748a9306
LW
3462# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3463# else
61f1c44b 3464# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3465 /* on Linux systems we're safe; except when we're not [perl #38223] */
3466# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3467# else
748a9306 3468 /* otherwise guess at what's safe */
61f1c44b
JVD
3469# define IOCPARM_LEN(x) 256
3470# endif
748a9306 3471# endif
a0d0e21e
LW
3472#endif
3473
1761cee5 3474#if defined(__CYGWIN__)
521e0776
GS
3475/* USEMYBINMODE
3476 * This symbol, if defined, indicates that the program should
16fe6d59 3477 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3478 * that a file is in "binary" mode -- that is, that no translation
3479 * of bytes occurs on read or write operations.
3480 */
36894f0b 3481# define USEMYBINMODE /**/
77a40698 3482# include <io.h> /* for setmode() prototype */
16fe6d59 3483# define my_binmode(fp, iotype, mode) \
77a40698 3484 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3485#endif
3486
88d10794
JH
3487#ifdef __CYGWIN__
3488void init_os_extras(void);
3489#endif
3490
cea2e8a9
GS
3491#ifdef UNION_ANY_DEFINITION
3492UNION_ANY_DEFINITION;
3493#else
3494union any {
3495 void* any_ptr;
3496 I32 any_i32;
ae103e09 3497 U32 any_u32;
cea2e8a9 3498 IV any_iv;
c6bf6a65 3499 UV any_uv;
cea2e8a9 3500 long any_long;
9febdf04 3501 bool any_bool;
c76ac1ee 3502 void (*any_dptr) (void*);
acfe0abc 3503 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3504};
3505#endif
3506
acfe0abc 3507typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3508
3509#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3510#define FILTER_DATA(idx) \
3511 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3512#define FILTER_ISREADER(idx) \
3513 (PL_parser && PL_parser->rsfp_filters \
3514 && idx >= AvFILLp(PL_parser->rsfp_filters))
3515#define PERL_FILTER_EXISTS(i) \
3516 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3517 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3518
c5078cac
JH
3519#if defined(_AIX) && !defined(_AIX43)
3520#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3521/* We cannot include <crypt.h> to get the struct crypt_data
3522 * because of setkey prototype problems when threading */
3523typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3524 /* From OSF, Not needed in AIX
3525 char C[28], D[28];
3526 */
3527 char E[48];
3528 char KS[16][48];
3529 char block[66];
3530 char iobuf[16];
3531} CRYPTD;
3532#endif /* threading */
3533#endif /* AIX */
3534
e37778c2 3535#if !defined(OS2)
2c2d71f5
JH
3536# include "iperlsys.h"
3537#endif
504f80c1 3538
9c12f1e5 3539#ifdef __LIBCATAMOUNT__
00f254e2 3540#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3541#undef HAS_GROUP
3542#define FAKE_BIT_BUCKET
3543#endif
3544
d10dc2ae
JH
3545/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3546 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3547 * defined by Configure, despite their names being similar to the
3548 * other defines like USE_ITHREADS. Configure in fact knows nothing
3549 * about the randomised hashes. Therefore to enable/disable the hash
3550 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3551#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3552# define USE_HASH_SEED
504f80c1
JH
3553#endif
3554
598921a7
NC
3555/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3556 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3557 * it's not really needed.
3558 */
3559#if defined(WIN32)
3560# define YYTOKENTYPE
3561#endif
3562#include "perly.h"
3563
598921a7 3564
654eccd5
JD
3565/* macros to define bit-fields in structs. */
3566#ifndef PERL_BITFIELD8
3567# define PERL_BITFIELD8 unsigned
3568#endif
3569#ifndef PERL_BITFIELD16
3570# define PERL_BITFIELD16 unsigned
3571#endif
3572#ifndef PERL_BITFIELD32
3573# define PERL_BITFIELD32 unsigned
3574#endif
3575
79072805 3576#include "sv.h"
288b8c02 3577#include "regexp.h"
378cc40b 3578#include "util.h"
8d063cd8 3579#include "form.h"
79072805 3580#include "gv.h"
dd2155a4 3581#include "pad.h"
79072805 3582#include "cv.h"
abdd5c84 3583#include "opnames.h"
79072805 3584#include "op.h"
b3ca2e83 3585#include "hv.h"
79072805
LW
3586#include "cop.h"
3587#include "av.h"
79072805
LW
3588#include "mg.h"
3589#include "scope.h"
4438c4b7 3590#include "warnings.h"
a0ed51b3 3591#include "utf8.h"
8d063cd8 3592
0d7d409d
DM
3593/* these would be in doio.h if there was such a file */
3594#define my_stat() my_stat_flags(SV_GMAGIC)
3595#define my_lstat() my_lstat_flags(SV_GMAGIC)
3596
20f4945e 3597/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3598#undef _XPV_HEAD
3599#undef _XPVMG_HEAD
3600#undef _XPVCV_COMMON
7fae4e64
GS
3601
3602typedef struct _sublex_info SUBLEXINFO;
3603struct _sublex_info {
651b5b28
NC
3604 U8 super_state; /* lexer state to save */
3605 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3606 OP *sub_op; /* "lex_op" to use */
7cc34111 3607 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3608};
3609
199e78b7
DM
3610#include "parser.h"
3611
455ece5e 3612typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3613
2260ab51
KW
3614#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3615
3616/* These have to be predeclared, as they are used in proto.h which is #included
3617 * before their definitions in regcomp.h. */
3618
3619struct scan_data_t;
7dcac5f6
KW
3620typedef struct regnode_charclass regnode_charclass;
3621
2260ab51 3622struct regnode_charclass_class;
d1d040e5
KW
3623
3624/* A hopefully less confusing name. The sub-classes are all Posix classes only
3625 * used under /l matching */
3626typedef struct regnode_charclass_class regnode_charclass_posixl;
3627
b8f7bb16 3628typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW
3629typedef struct RExC_state_t RExC_state_t;
3630struct _reg_trie_data;
76e3520e 3631
2260ab51
KW
3632#endif
3633
5f7fde29
GS
3634struct ptr_tbl_ent {
3635 struct ptr_tbl_ent* next;
53c1dcc0 3636 const void* oldval;
5f7fde29 3637 void* newval;
d18c6117
GS
3638};
3639
5f7fde29
GS
3640struct ptr_tbl {
3641 struct ptr_tbl_ent** tbl_ary;
3642 UV tbl_max;
3643 UV tbl_items;
db93c0c4
NC
3644 struct ptr_tbl_arena *tbl_arena;
3645 struct ptr_tbl_ent *tbl_arena_next;
3646 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS
3647};
3648
fe14fcc3
LW
3649#if defined(htonl) && !defined(HAS_HTONL)
3650#define HAS_HTONL
ae986130 3651#endif
fe14fcc3
LW
3652#if defined(htons) && !defined(HAS_HTONS)
3653#define HAS_HTONS
ae986130 3654#endif
fe14fcc3
LW
3655#if defined(ntohl) && !defined(HAS_NTOHL)
3656#define HAS_NTOHL
ae986130 3657#endif
fe14fcc3
LW
3658#if defined(ntohs) && !defined(HAS_NTOHS)
3659#define HAS_NTOHS
ae986130 3660#endif
fe14fcc3 3661#ifndef HAS_HTONL
fe14fcc3
LW
3662#define HAS_HTONS
3663#define HAS_HTONL
3664#define HAS_NTOHS
3665#define HAS_NTOHL
8e2d7c44
NC
3666# if (BYTEORDER & 0xffff) == 0x4321
3667/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3668 re-order their values. However, to behave identically to the alternative
3669 implementations, they should truncate to the correct size. */
3670# define ntohl(x) ((x)&0xFFFFFFFF)
3671# define htonl(x) ntohl(x)
3672# define ntohs(x) ((x)&0xFFFF)
3673# define htons(x) ntohs(x)
e4b03fed
NC
3674# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3675
3676/* Note that we can't straight out declare our own htonl and htons because
3677 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3678 to avoid the overhead of initialising the socket subsystem, but the headers
3679 that *declare* the various functions are still seen. If we declare our own
3680 htonl etc they will clash with the declarations in the Win32 headers. */
3681
3682PERL_STATIC_INLINE U32
3683my_swap32(const U32 x) {
3684 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3685 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3686}
3687
3688PERL_STATIC_INLINE U16
3689my_swap16(const U16 x) {
3690 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3691}
3692
3693# define htonl(x) my_swap32(x)
3694# define ntohl(x) my_swap32(x)
3695# define ntohs(x) my_swap16(x)
3696# define htons(x) my_swap16(x)
8e2d7c44 3697# else
691a44df
NC
3698# error "Unsupported byteorder"
3699/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3700 the error message. Please check the value of the macro BYTEORDER, as defined
3701 in config.h. The values of BYTEORDER we expect are
3702
3703 big endian little endian
3704 32 bit 0x4321 0x1234
3705 64 bit 0x87654321 0x12345678
3706
3707 If you have a system with a different byte order, please see
3708 pod/perlhack.pod for how to submit a patch to add supporting code.
3709*/
3710# endif
a687059c
LW
3711#endif
3712
988174c1
LW
3713/*
3714 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3715 * -DWS
3716 */
5ae72479 3717#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC
3718/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3719 re-order their values. However, to behave identically to the alternative
3720 implementations, they should truncate to the correct size. */
3721# define vtohl(x) ((x)&0xFFFFFFFF)
3722# define vtohs(x) ((x)&0xFFFF)
3723# define htovl(x) vtohl(x)
3724# define htovs(x) vtohs(x)
545872c5 3725#elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW
3726# define vtohl(x) ((((x)&0xFF)<<24) \
3727 +(((x)>>24)&0xFF) \
3728 +(((x)&0x0000FF00)<<8) \