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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
85e6fe83
LW
11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
760ac839
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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
760ac839
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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
b9f81531 31#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(_STDC_C99)
86a3cabf 32# define HAS_C99 1
86a3cabf
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33#endif
34
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35/* See L<perlguts/"The Perl API"> for detailed notes on
36 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
37
ac6bedea
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38/* Note that from here --> to <-- the same logic is
39 * repeated in makedef.pl, so be certain to update
40 * both places when editing. */
41
6f4183fe 42#ifdef USE_ITHREADS
acfe0abc 43# if !defined(MULTIPLICITY)
6f4183fe
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44# define MULTIPLICITY
45# endif
46#endif
47
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48#ifdef PERL_GLOBAL_STRUCT_PRIVATE
49# ifndef PERL_GLOBAL_STRUCT
50# define PERL_GLOBAL_STRUCT
51# endif
52#endif
97aff369 53
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54#ifdef PERL_GLOBAL_STRUCT
55# ifndef MULTIPLICITY
56# define MULTIPLICITY
57# endif
58#endif
59
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60#ifdef MULTIPLICITY
61# ifndef PERL_IMPLICIT_CONTEXT
62# define PERL_IMPLICIT_CONTEXT
63# endif
64#endif
65
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66/* undef WIN32 when building on Cygwin (for libwin32) - gph */
67#ifdef __CYGWIN__
68# undef WIN32
69# undef _WIN32
70#endif
71
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72#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
73# ifndef SYMBIAN
74# define SYMBIAN
75# endif
76#endif
77
a0fd4948 78#ifdef __SYMBIAN32__
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79# include "symbian/symbian_proto.h"
80#endif
81
82/* Any stack-challenged places. The limit varies (and often
83 * is configurable), but using more than a kilobyte of stack
84 * is usually dubious in these systems. */
739a0b84
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85#if defined(__SYMBIAN32__)
86/* Symbian: need to work around the SDK features. *
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87 * On WINS: MS VC5 generates calls to _chkstk, *
88 * if a "large" stack frame is allocated. *
89 * gcc on MARM does not generate calls like these. */
90# define USE_HEAP_INSTEAD_OF_STACK
91#endif
92
dd134d2c 93/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 94/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 95#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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96# define USE_REENTRANT_API
97#endif
98
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99/* <--- here ends the logic shared by perl.h and makedef.pl */
100
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101/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
102#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
103# define USING_MSVC6
104#endif
105
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106#undef START_EXTERN_C
107#undef END_EXTERN_C
108#undef EXTERN_C
109#ifdef __cplusplus
110# define START_EXTERN_C extern "C" {
111# define END_EXTERN_C }
112# define EXTERN_C extern "C"
113#else
114# define START_EXTERN_C
115# define END_EXTERN_C
116# define EXTERN_C extern
117#endif
118
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119/* Fallback definitions in case we don't have definitions from config.h.
120 This should only matter for systems that don't use Configure and
121 haven't been modified to define PERL_STATIC_INLINE yet.
122*/
123#if !defined(PERL_STATIC_INLINE)
124# ifdef HAS_STATIC_INLINE
125# define PERL_STATIC_INLINE static inline
126# else
127# define PERL_STATIC_INLINE static
128# endif
129#endif
130
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131#ifdef PERL_GLOBAL_STRUCT
132# ifndef PERL_GET_VARS
133# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 134 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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135# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
136# ifndef PERLIO_FUNCS_CONST
137# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
138# endif
139# else
140# define PERL_GET_VARS() PL_VarsPtr
141# endif
142# endif
143#endif
144
5aaab254 145#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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146
147#ifdef PERL_GLOBAL_STRUCT
148# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
149#else
150# define dVAR dNOOP
151#endif
152
c5be433b 153#ifdef PERL_IMPLICIT_CONTEXT
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154# ifndef MULTIPLICITY
155# define MULTIPLICITY
c5be433b 156# endif
e8dda941 157# define tTHX PerlInterpreter*
5aaab254 158# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 159# define aTHX my_perl
9399a70c 160# define aTHXa(a) aTHX = (tTHX)a
27da23d5 161# ifdef PERL_GLOBAL_STRUCT
e8dda941 162# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 163# else
e8dda941 164# define dTHXa(a) pTHX = (tTHX)a
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165# endif
166# ifdef PERL_GLOBAL_STRUCT
167# define dTHX dVAR; pTHX = PERL_GET_THX
168# else
169# define dTHX pTHX = PERL_GET_THX
170# endif
c5be433b 171# define pTHX_ pTHX,
c5be433b 172# define aTHX_ aTHX,
4373e329 173# define pTHX_1 2
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174# define pTHX_2 3
175# define pTHX_3 4
176# define pTHX_4 5
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177# define pTHX_5 6
178# define pTHX_6 7
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179# define pTHX_7 8
180# define pTHX_8 9
181# define pTHX_9 10
a6fc70e5 182# define pTHX_12 13
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183# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
184# define PERL_TRACK_MEMPOOL
185# endif
186#else
187# undef PERL_TRACK_MEMPOOL
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188#endif
189
76e3520e 190#define STATIC static
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191
192#ifndef PERL_CORE
193/* Do not use these macros. They were part of PERL_OBJECT, which was an
194 * implementation of multiplicity using C++ objects. They have been left
195 * here solely for the sake of XS code which has incorrectly
196 * cargo-culted them.
197 */
76e3520e 198#define CPERLscope(x) x
565764a8 199#define CPERLarg void
76e3520e 200#define CPERLarg_
e3b8966e 201#define _CPERLarg
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202#define PERL_OBJECT_THIS
203#define _PERL_OBJECT_THIS
204#define PERL_OBJECT_THIS_
312caa8e 205#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 206#define MEMBER_TO_FPTR(name) name
16c91539 207#endif /* !PERL_CORE */
76e3520e 208
16c91539 209#define CALLRUNOPS PL_runops
f9f4320a 210
3ab4a224 211#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 212
16c91539 213#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 214#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 215 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 216 (strbeg),(minend),(sv),(data),(flags))
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217#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
218 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
f9f4320a
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219 (strend),(flags),(data))
220#define CALLREG_INTUIT_STRING(prog) \
16c91539 221 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 222
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223#define CALLREGFREE(prog) \
224 Perl_pregfree(aTHX_ (prog))
225
226#define CALLREGFREE_PVT(prog) \
16c91539 227 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 228
2fdbfb4d 229#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 230 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 231
2fdbfb4d 232#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 233 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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234
235#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 236 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 237
192b9cd1 238#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 239 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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240
241#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 242 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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243
244#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 245 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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246
247#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 248 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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249
250#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 251 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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252
253#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 254 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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255
256#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 257 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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258
259#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 260 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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261
262#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 263 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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264
265#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 266 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 267
49d7dfbc 268#define CALLREG_PACKAGE(rx) \
16c91539 269 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 270
00f254e2 271#if defined(USE_ITHREADS)
f9f4320a 272#define CALLREGDUPE(prog,param) \
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273 Perl_re_dup(aTHX_ (prog),(param))
274
275#define CALLREGDUPE_PVT(prog,param) \
16c91539 276 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 277 : (REGEXP *)NULL)
f9f4320a 278#endif
14dd3ad8 279
a20207d7 280
bcdf7404 281
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282
283
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284/*
285 * Because of backward compatibility reasons the PERL_UNUSED_DECL
286 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
287 *
288 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 289 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
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290 * marking unused variables (they need e.g. a #pragma) and therefore
291 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
292 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
293 *
294 */
1266ad8c 295
9969cdde 296#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 297# ifdef __cplusplus
5ba4cab2 298# define PERL_UNUSED_DECL
5b2bd0a5 299# else
5ba4cab2 300# define PERL_UNUSED_DECL __attribute__((unused))
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301# endif
302#endif
44dbb695 303
5b2bd0a5 304#ifndef PERL_UNUSED_DECL
34659ad4 305# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 306# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 307# else
5ba4cab2 308# define PERL_UNUSED_DECL
b79c357a 309# endif
5b2bd0a5 310#endif
00f254e2 311
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312/* gcc -Wall:
313 * for silencing unused variables that are actually used most of the time,
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314 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
315 * or variables/arguments that are used only in certain configurations.
349b520e 316 */
53c1dcc0 317#ifndef PERL_UNUSED_ARG
c99ffe5e 318# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 319# include <note.h>
53c1dcc0 320# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 321# else
a730e3f2 322# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c
AL
323# endif
324#endif
53c1dcc0 325#ifndef PERL_UNUSED_VAR
a730e3f2 326# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 327#endif
ad73156c 328
23491f1d 329#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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330# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
331#else
332# define PERL_UNUSED_CONTEXT
333#endif
334
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335/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
336 * g++ allows them but seems to have problems with them
337 * (insane errors ensue).
338 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
339 */
340#if defined(PERL_GCC_PEDANTIC) || \
341 (defined(__GNUC__) && defined(__cplusplus) && \
342 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
343# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
344# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
345# endif
346#endif
347
ffea512f 348/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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349 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
350 *
351 * The main reason for this is that the combination of gcc -Wunused-result
352 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
353 * be silenced with casting to void. This causes trouble when the system
354 * header files use the attribute.
355 *
356 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
357 * is there for a good reason: you might lose success/failure information,
358 * or leak resources, or changes in resources.
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359 *
360 * But sometimes you just want to ignore the return value, e.g. on
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361 * codepaths soon ending up in abort, or in "best effort" attempts,
362 * or in situations where there is no good way to handle failures.
ffea512f 363 *
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364 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
365 * another possibility is that you can capture the return value
366 * and use PERL_UNUSED_VAR on that.
ffea512f 367 *
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368 * The __typeof__() is used instead of typeof() since typeof() is not
369 * available under strict C89, and because of compilers masquerading
370 * as gcc (clang and icc), we want exactly the gcc extension
371 * __typeof__ and nothing else.
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372 */
373#ifndef PERL_UNUSED_RESULT
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374# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
375# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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376# else
377# define PERL_UNUSED_RESULT(v) ((void)(v))
378# endif
379#endif
380
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381/* on gcc (and clang), specify that a warning should be temporarily
382 * ignored; e.g.
383 *
384 * GCC_DIAG_IGNORE(-Wmultichar);
385 * char b = 'ab';
386 * GCC_DIAG_RESTORE;
387 *
388 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
389 *
390 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
391 * clang only pretends to be GCC 4.2, but still supports push/pop.
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392 *
393 * Note on usage: on non-gcc (or lookalike, like clang) compilers
394 * one cannot use these at file (global) level without warnings
395 * since they are defined as empty, which leads into the terminating
396 * semicolon being left alone on a line:
397 * ;
398 * which makes compilers mildly cranky. Therefore at file level one
6ab56f1e
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399 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
400 * the semicolons.
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401 *
402 * (A dead-on-arrival solution would be to try to define the macros as
403 * NOOP or dNOOP, those don't work both inside functions and outside.)
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404 */
405
57d4b8c5 406#if defined(__clang__) || defined(__clang) || \
d28ce8b4 407 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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408# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
409/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 410# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 411 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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412# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
413#else
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414# define GCC_DIAG_IGNORE(w)
415# define GCC_DIAG_RESTORE
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416#endif
417
6f207bd3 418#define NOOP /*EMPTY*/(void)0
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419/* cea2e8a9dd23747f accidentally lost the comment originally from the first
420 check in of thread.h, explaining why we need dNOOP at all: */
421/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
422/* Declaring a *function*, instead of a variable, ensures that we don't rely
423 on being able to suppress "unused" warnings. */
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424#ifdef __cplusplus
425#define dNOOP (void)0
426#else
64a8239e 427#define dNOOP extern int Perl___notused(void)
7db66e12 428#endif
71be2cbc 429
0cb96387 430#ifndef pTHX
a78adc84 431/* Don't bother defining tTHX ; using it outside
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432 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
433 */
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434# define pTHX void
435# define pTHX_
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436# define aTHX
437# define aTHX_
9399a70c 438# define aTHXa(a) NOOP
0cb96387
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439# define dTHXa(a) dNOOP
440# define dTHX dNOOP
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441# define pTHX_1 1
442# define pTHX_2 2
443# define pTHX_3 3
444# define pTHX_4 4
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445# define pTHX_5 5
446# define pTHX_6 6
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447# define pTHX_7 7
448# define pTHX_8 8
449# define pTHX_9 9
a6fc70e5 450# define pTHX_12 12
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451#endif
452
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453#ifndef dVAR
454# define dVAR dNOOP
455#endif
456
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457/* these are only defined for compatibility; should not be used internally */
458#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
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459# define pTHXo pTHX
460# define pTHXo_ pTHX_
0cb96387
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461# define aTHXo aTHX
462# define aTHXo_ aTHX_
c5be433b 463# define dTHXo dTHX
71d280e3 464# define dTHXoa(x) dTHXa(x)
0cb96387
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465#endif
466
467#ifndef pTHXx
5aaab254 468# define pTHXx PerlInterpreter *my_perl
0cb96387 469# define pTHXx_ pTHXx,
0cb96387
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470# define aTHXx my_perl
471# define aTHXx_ aTHXx,
c5be433b 472# define dTHXx dTHX
22c35a8c 473#endif
71be2cbc 474
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475/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
476 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
477 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
478#ifdef PERL_IMPLICIT_SYS
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479# ifdef PERL_GLOBAL_STRUCT_PRIVATE
480# define dTHXs dVAR; dTHX
481# else
482# define dTHXs dTHX
483# endif
1de7c2ac 484#else
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485# ifdef PERL_GLOBAL_STRUCT_PRIVATE
486# define dTHXs dVAR
487# else
488# define dTHXs dNOOP
489# endif
1de7c2ac
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490#endif
491
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JH
492/* Some platforms require marking function declarations
493 * for them to be exportable. Used in perlio.h, proto.h
494 * is handled either by the makedef.pl or by defining the
495 * PERL_CALLCONV to be something special. See also the
496 * definition of XS() in XSUB.h. */
497#ifndef PERL_EXPORT_C
a0c21aa1
JH
498# ifdef __cplusplus
499# define PERL_EXPORT_C extern "C"
500# else
501# define PERL_EXPORT_C extern
502# endif
27da23d5
JH
503#endif
504#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH
505# ifdef __cplusplus
506# define PERL_XS_EXPORT_C extern "C"
507# else
508# define PERL_XS_EXPORT_C
509# endif
27da23d5
JH
510#endif
511
5b692037
JH
512#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
513# ifndef PERL_USE_GCC_BRACE_GROUPS
514# define PERL_USE_GCC_BRACE_GROUPS
515# endif
516#endif
517
728e2803
PP
518/*
519 * STMT_START { statements; } STMT_END;
520 * can be used as a single statement, as in
521 * if (x) STMT_START { ... } STMT_END; else ...
522 *
523 * Trying to select a version that gives no warnings...
524 */
525#if !(defined(STMT_START) && defined(STMT_END))
5b692037 526# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 527# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
528# define STMT_END )
529# else
728e2803
PP
530# define STMT_START do
531# define STMT_END while (0)
728e2803
PP
532# endif
533#endif
534
d6f9c181
JH
535#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
536# define BYTEORDER 0x1234
79072805
LW
537#endif
538
539/* Overall memory policy? */
540#ifndef CONSERVATIVE
541# define LIBERAL 1
542#endif
543
8ada0baa
JH
544#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
545#define ASCIIish
546#else
547#undef ASCIIish
548#endif
549
79072805
LW
550/*
551 * The following contortions are brought to you on behalf of all the
552 * standards, semi-standards, de facto standards, not-so-de-facto standards
553 * of the world, as well as all the other botches anyone ever thought of.
554 * The basic theory is that if we work hard enough here, the rest of the
555 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
556 */
ac58e20f 557
ee0007ab 558/* define this once if either system, instead of cluttering up the src */
7c458fae 559#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
560#define DOSISH 1
561#endif
562
739a0b84 563#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
564# define STANDARD_C 1
565#endif
566
8d87852b 567#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
568# define DONT_DECLARE_STD 1
569#endif
570
352d5a3a 571#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 572# define VOL volatile
663a0e37 573#else
79072805 574# define VOL
663a0e37
LW
575#endif
576
284167a5
SM
577/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
578 * you get a perl without taint support, but doubtlessly with a lesser
579 * degree of support. Do not do so unless you know exactly what it means
580 * technically, have a good reason to do so, and know exactly how the
581 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
582 * a potential security risk due to flat out ignoring the security-relevant
583 * taint flags. This being said, a perl without taint support compiled in
584 * has marginal run-time performance benefits.
585 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
586 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
587 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
588 *
589 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 590 * voids your nonexistent warranty!
284167a5 591 */
dc6d7f5c 592#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
593# define NO_TAINT_SUPPORT 1
594#endif
595
596/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
597 * operations into no-ops for a very modest speed-up. Enable only if you
598 * know what you're doing: tests and CPAN modules' tests are bound to fail.
599 */
dc6d7f5c 600#ifdef NO_TAINT_SUPPORT
284167a5
SM
601# define TAINT NOOP
602# define TAINT_NOT NOOP
603# define TAINT_IF(c) NOOP
604# define TAINT_ENV() NOOP
605# define TAINT_PROPER(s) NOOP
606# define TAINT_set(s) NOOP
607# define TAINT_get 0
608# define TAINTING_get 0
609# define TAINTING_set(s) NOOP
610# define TAINT_WARN_get 0
611# define TAINT_WARN_set(s) NOOP
612#else
613# define TAINT (PL_tainted = TRUE)
614# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
615# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
616# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
617# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
618# define TAINT_set(s) (PL_tainted = (s))
619# define TAINT_get (PL_tainted)
620# define TAINTING_get (PL_tainting)
621# define TAINTING_set(s) (PL_tainting = (s))
622# define TAINT_WARN_get (PL_taint_warn)
623# define TAINT_WARN_set(s) (PL_taint_warn = (s))
624#endif
a687059c 625
20be6587
DM
626/* flags used internally only within pp_subst and pp_substcont */
627#ifdef PERL_CORE
628# define SUBST_TAINT_STR 1 /* string tainted */
629# define SUBST_TAINT_PAT 2 /* pattern tainted */
630# define SUBST_TAINT_REPL 4 /* replacement tainted */
631# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
632# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
633#endif
634
d460ef45 635/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
636 defines move there? If so, I could simplify this a lot. --AD 9/96.
637*/
638/* Process group stuff changed from traditional BSD to POSIX.
639 perlfunc.pod documents the traditional BSD-style syntax, so we'll
640 try to preserve that, if possible.
641*/
642#ifdef HAS_SETPGID
643# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 644#else
a6e633de
PP
645# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
646# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
647# else
648# ifdef HAS_SETPGRP2 /* DG/UX */
649# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
650# endif
651# endif
652#endif
653#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
654# define HAS_SETPGRP /* Well, effectively it does . . . */
655#endif
656
657/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
658 our life easier :-) so we'll try it.
659*/
660#ifdef HAS_GETPGID
661# define BSD_GETPGRP(pid) getpgid((pid))
662#else
663# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
664# define BSD_GETPGRP(pid) getpgrp((pid))
665# else
666# ifdef HAS_GETPGRP2 /* DG/UX */
667# define BSD_GETPGRP(pid) getpgrp2((pid))
668# endif
669# endif
670#endif
671#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
672# define HAS_GETPGRP /* Well, effectively it does . . . */
673#endif
674
d460ef45 675/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
676 have different behaviors, but perl.h used to define USE_BSDPGRP
677 (prior to 5.003_05) so some extension might depend on it.
678*/
679#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
680# ifndef USE_BSDPGRP
681# define USE_BSDPGRP
682# endif
663a0e37
LW
683#endif
684
486ec47a 685/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
686 pthread.h must be included before all other header files.
687*/
3db8f154 688#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
689# include <pthread.h>
690#endif
691
58ab9e8b 692#include <sys/types.h>
663a0e37 693
760ac839
LW
694#ifdef __cplusplus
695# ifndef I_STDARG
696# define I_STDARG 1
697# endif
698#endif
699
700#ifdef I_STDARG
701# include <stdarg.h>
702#else
703# ifdef I_VARARGS
704# include <varargs.h>
705# endif
706#endif
707
27db2737
JH
708#ifdef I_STDINT
709# include <stdint.h>
710#endif
711
fe14fcc3 712#include <ctype.h>
a0d0e21e
LW
713
714#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
715#undef METHOD
a0d0e21e
LW
716#endif
717
12ae5dfc
JH
718#ifdef PERL_MICRO
719# define NO_LOCALE
720#endif
721
4633a7c4 722#ifdef I_LOCALE
36477c24 723# include <locale.h>
4633a7c4
LW
724#endif
725
36477c24
PP
726#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
727# define USE_LOCALE
ccd65d51
KW
728# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
729 capability */
36477c24
PP
730# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
731 && defined(HAS_STRXFRM)
732# define USE_LOCALE_COLLATE
733# endif
734# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
735# define USE_LOCALE_CTYPE
736# endif
737# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
738# define USE_LOCALE_NUMERIC
739# endif
fa9b773e
KW
740# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
741# define USE_LOCALE_MESSAGES
742# endif
743# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
744# define USE_LOCALE_MONETARY
745# endif
56e45410
KW
746# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
747# define USE_LOCALE_TIME
748# endif
b385bb4d
KW
749# ifndef WIN32 /* No wrapper except on Windows */
750# define my_setlocale(a,b) setlocale(a,b)
751# endif
36477c24 752#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 753
fe14fcc3 754#include <setjmp.h>
79072805 755
a0d0e21e 756#ifdef I_SYS_PARAM
79072805
LW
757# ifdef PARAM_NEEDS_TYPES
758# include <sys/types.h>
759# endif
760# include <sys/param.h>
352d5a3a 761#endif
79072805 762
ce3470dc
AD
763/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
764 value something like 199306. This may be useful if no more-specific
765 feature test is available.
766*/
767#if defined(BSD)
768# ifndef BSDish
769# define BSDish
770# endif
771#endif
772
79072805 773/* Use all the "standard" definitions? */
a0d0e21e 774#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 775# include <stdlib.h>
ff68c719 776#endif
03a14243 777
3f270f98
JH
778/* If this causes problems, set i_unistd=undef in the hint file. */
779#ifdef I_UNISTD
780# include <unistd.h>
781#endif
782
de8ca8af
NT
783/* for WCOREDUMP */
784#ifdef I_SYS_WAIT
785# include <sys/wait.h>
786#endif
787
9969cdde 788#ifdef __SYMBIAN32__
27da23d5
JH
789# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
790#endif
791
21e89b5f 792#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 793EXTERN_C int syscall(int, ...);
2ef53570
JH
794#endif
795
21e89b5f 796#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 797EXTERN_C int usleep(unsigned int);
2ef53570
JH
798#endif
799
1109a392
MHM
800#ifdef PERL_CORE
801
802/* macros for correct constant construction */
803# if INTSIZE >= 2
804# define U16_CONST(x) ((U16)x##U)
805# else
806# define U16_CONST(x) ((U16)x##UL)
807# endif
808
809# if INTSIZE >= 4
810# define U32_CONST(x) ((U32)x##U)
811# else
812# define U32_CONST(x) ((U32)x##UL)
813# endif
814
815# ifdef HAS_QUAD
816# if INTSIZE >= 8
817# define U64_CONST(x) ((U64)x##U)
818# elif LONGSIZE >= 8
819# define U64_CONST(x) ((U64)x##UL)
820# elif QUADKIND == QUAD_IS_LONG_LONG
821# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
822# elif QUADKIND == QUAD_IS___INT64
823# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
824# else /* best guess we can make */
825# define U64_CONST(x) ((U64)x##UL)
826# endif
827# endif
828
829/* byte-swapping functions for big-/little-endian conversion */
830# define _swab_16_(x) ((U16)( \
831 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
832 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
833
834# define _swab_32_(x) ((U32)( \
835 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
836 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
837 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
838 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
839
840# ifdef HAS_QUAD
841# define _swab_64_(x) ((U64)( \
842 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
843 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
844 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
845 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
846 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
847 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
848 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
849 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
850# endif
851
9c17f24a
NC
852/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
853 at least on FreeBSD. YMMV, so experiment. */
854#ifndef PERL_ARENA_SIZE
855#define PERL_ARENA_SIZE 4080
856#endif
857
ccb2c8b8 858/* Maximum level of recursion */
2b9dff67
RGS
859#ifndef PERL_SUB_DEPTH_WARN
860#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
861#endif
862
1109a392
MHM
863#endif /* PERL_CORE */
864
bdf3085f
NC
865/* We no longer default to creating a new SV for GvSV.
866 Do this before embed. */
867#ifndef PERL_CREATE_GVSV
7459f06b
NC
868# ifndef PERL_DONT_CREATE_GVSV
869# define PERL_DONT_CREATE_GVSV
870# endif
bdf3085f
NC
871#endif
872
ca0c25f6
NC
873#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
874#define PERL_USES_PL_PIDSTATUS
875#endif
876
739a0b84 877#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
878#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
879#endif
880
c31fac66
GS
881#define MEM_SIZE Size_t
882
1936d2a7
NC
883/* Round all values passed to malloc up, by default to a multiple of
884 sizeof(size_t)
885*/
886#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
887#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
888#endif
889
f1200559
WH
890/* sv_grow() will expand strings by at least a certain percentage of
891 the previously *used* length to avoid excessive calls to realloc().
892 The default is 25% of the current length.
893*/
894#ifndef PERL_STRLEN_EXPAND_SHIFT
895# define PERL_STRLEN_EXPAND_SHIFT 2
896#endif
897
3800c318 898#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
899# include <stddef.h>
900# define STRUCT_OFFSET(s,m) offsetof(s,m)
901#else
902# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
903#endif
904
905/* ptrdiff_t is C11, so undef it under pedantic builds */
906#ifdef PERL_GCC_PEDANTIC
907# undef HAS_PTRDIFF_T
51371543
GS
908#endif
909
9969cdde 910#ifndef __SYMBIAN32__
27da23d5
JH
911# if defined(I_STRING) || defined(__cplusplus)
912# include <string.h>
913# else
914# include <strings.h>
915# endif
51371543
GS
916#endif
917
55497cff
PP
918/* This comes after <stdlib.h> so we don't try to change the standard
919 * library prototypes; we'll use our own in proto.h instead. */
03a14243 920
4633a7c4 921#ifdef MYMALLOC
86058a2d 922# ifdef PERL_POLLUTE_MALLOC
ee13e175 923# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
924# define Perl_malloc malloc
925# define Perl_calloc calloc
926# define Perl_realloc realloc
927# define Perl_mfree free
ee13e175 928# endif
86058a2d
GS
929# else
930# define EMBEDMYMALLOC /* for compatibility */
931# endif
827e134a 932
651b9576
GS
933# define safemalloc Perl_malloc
934# define safecalloc Perl_calloc
935# define saferealloc Perl_realloc
936# define safefree Perl_mfree
22f7c9c9
JH
937# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
938 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
939 code; \
940 } STMT_END
941# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
942 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
943# define panic_write2(s) write(2, s, strlen(s))
944# define CHECK_MALLOC_TAINT(newval) \
945 CHECK_MALLOC_TOO_LATE_FOR_( \
946 if (newval) { \
acfd4d8e 947 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 948 exit(1); })
22f7c9c9 949# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 950 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
951 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
952 }} STMT_END;
f2517201
GS
953#else /* MYMALLOC */
954# define safemalloc safesysmalloc
955# define safecalloc safesyscalloc
956# define saferealloc safesysrealloc
957# define safefree safesysfree
22f7c9c9
JH
958# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
959# define CHECK_MALLOC_TAINT(newval) ((void)0)
960# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 961#endif /* MYMALLOC */
4633a7c4 962
fe13d51d 963/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 964#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
965#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
966#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
967#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
968
a0d0e21e
LW
969#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
970#define strchr index
971#define strrchr rindex
972#endif
973
16d20bd9
AD
974#ifdef I_MEMORY
975# include <memory.h>
976#endif
977
fe14fcc3 978#ifdef HAS_MEMCPY
85e6fe83 979# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 980# ifndef memcpy
20ce7b12 981 extern char * memcpy (char*, char*, int);
ee0007ab
LW
982# endif
983# endif
984#else
985# ifndef memcpy
986# ifdef HAS_BCOPY
987# define memcpy(d,s,l) bcopy(s,d,l)
988# else
989# define memcpy(d,s,l) my_bcopy(s,d,l)
990# endif
991# endif
992#endif /* HAS_MEMCPY */
fe14fcc3 993
ee0007ab 994#ifdef HAS_MEMSET
85e6fe83 995# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 996# ifndef memset
20ce7b12 997 extern char *memset (char*, int, int);
ee0007ab
LW
998# endif
999# endif
ee0007ab 1000#else
12ae5dfc 1001# undef memset
fc36a67e 1002# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1003#endif /* HAS_MEMSET */
1004
85e6fe83 1005#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1006# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1007# define memmove(d,s,l) bcopy(s,d,l)
1008# else
2304df62 1009# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1010# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1011# else
79072805 1012# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1013# endif
352d5a3a 1014# endif
d9d8d8de 1015#endif
ee0007ab 1016
36477c24
PP
1017#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1018# undef HAS_MEMCMP
1019#endif
1020
1021#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1022# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1023# ifndef memcmp
20ce7b12 1024 extern int memcmp (char*, char*, int);
ee0007ab
LW
1025# endif
1026# endif
1027#else
1028# ifndef memcmp
ecfc5424 1029# define memcmp my_memcmp
352d5a3a 1030# endif
36477c24 1031#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1032
fc36a67e 1033#ifndef memzero
c635e13b
PP
1034# ifdef HAS_MEMSET
1035# define memzero(d,l) memset(d,0,l)
79072805 1036# else
c635e13b
PP
1037# ifdef HAS_BZERO
1038# define memzero(d,l) bzero(d,l)
79072805 1039# else
fc36a67e 1040# define memzero(d,l) my_bzero(d,l)
79072805
LW
1041# endif
1042# endif
d9d8d8de 1043#endif
378cc40b 1044
2f42fcb0 1045#ifndef PERL_MICRO
0f27ced1
JH
1046#ifndef memchr
1047# ifndef HAS_MEMCHR
1048# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1049# endif
1050#endif
2f42fcb0 1051#endif
0f27ced1 1052
36477c24
PP
1053#ifndef HAS_BCMP
1054# ifndef bcmp
1055# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1056# endif
36477c24 1057#endif /* !HAS_BCMP */
378cc40b 1058
ae986130 1059#ifdef I_NETINET_IN
79072805 1060# include <netinet/in.h>
ae986130
LW
1061#endif
1062
28e8609d
JH
1063#ifdef I_ARPA_INET
1064# include <arpa/inet.h>
1065#endif
1066
1aef975c 1067#ifdef I_SYS_STAT
84902520 1068# include <sys/stat.h>
1aef975c 1069#endif
79072805 1070
287a962e
JD
1071/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1072 This definition should ideally go into win32/win32.h, but S_IFIFO is
1073 used later here in perl.h before win32/win32.h is being included. */
1074#if !defined(S_IFIFO) && defined(_S_IFIFO)
1075# define S_IFIFO _S_IFIFO
1076#endif
1077
cc3315ba 1078/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1079 like UTekV) are broken, sometimes giving false positives. Undefine
1080 them here and let the code below set them to proper values.
1081
1082 The ghs macro stands for GreenHills Software C-1.8.5 which
1083 is the C compiler for sysV88 and the various derivatives.
1084 This header file bug is corrected in gcc-2.5.8 and later versions.
1085 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1086
cc3315ba 1087#if defined(m88k) && defined(ghs)
79072805
LW
1088# undef S_ISDIR
1089# undef S_ISCHR
1090# undef S_ISBLK
1091# undef S_ISREG
1092# undef S_ISFIFO
1093# undef S_ISLNK
ee0007ab 1094#endif
135863df 1095
663a0e37
LW
1096#ifdef I_TIME
1097# include <time.h>
ffed7fef 1098#endif
663a0e37 1099
fe14fcc3 1100#ifdef I_SYS_TIME
85e6fe83 1101# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1102# define KERNEL
1103# endif
1104# include <sys/time.h>
85e6fe83 1105# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1106# undef KERNEL
1107# endif
a687059c 1108#endif
135863df 1109
55497cff 1110#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1111# include <sys/times.h>
d9d8d8de 1112#endif
8d063cd8 1113
fe14fcc3 1114#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1115# undef HAS_STRERROR
663a0e37
LW
1116#endif
1117
1118#include <errno.h>
1e743fda 1119
acfe0abc 1120#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1121# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1122#endif
1123
8cfab5ff 1124/* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
00f254e2 1125 * This is important for using IPv6.
8cfab5ff
JH
1126 * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1127 * a bad idea since it breaks send() and recv(). */
1128#if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1129# define _SOCKADDR_LEN
1130#endif
1131
da70cfc6 1132#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1133# include <sys/socket.h>
1134# if defined(USE_SOCKS) && defined(I_SOCKS)
1135# if !defined(INCLUDE_PROTOTYPES)
1136# define INCLUDE_PROTOTYPES /* for <socks.h> */
1137# define PERL_SOCKS_NEED_PROTOTYPES
1138# endif
1139# include <socks.h>
1140# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1141# undef INCLUDE_PROTOTYPES
1142# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1143# endif
d460ef45 1144# endif
1e743fda 1145# ifdef I_NETDB
2986a63f
JH
1146# ifdef NETWARE
1147# include<stdio.h>
1148# endif
1e743fda
JH
1149# include <netdb.h>
1150# endif
1151# ifndef ENOTSOCK
1152# ifdef I_NET_ERRNO
1153# include <net/errno.h>
1154# endif
1155# endif
1156#endif
1157
fa0a29af 1158/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1159 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1160 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1161#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1162# if defined(__THROW) && defined(__GLIBC__)
1163int sockatmark(int) __THROW;
1164# else
2ef53570 1165int sockatmark(int);
29820b6d 1166# endif
2ef53570
JH
1167#endif
1168
7e827271 1169#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
1170EXTERN_C int fchdir(int);
1171EXTERN_C int flock(int, int);
1172EXTERN_C int fseeko(FILE *, off_t, int);
1173EXTERN_C off_t ftello(FILE *);
1174#endif
1175
7e827271 1176#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1177EXTERN_C char *crypt(const char *, const char *);
7e827271 1178EXTERN_C char **environ;
1ccb7c8d
JH
1179#endif
1180
83a6ff2e 1181#if defined(__cplusplus)
ce3470dc 1182# if defined(BSDish)
b91fbb93 1183EXTERN_C char **environ;
83a6ff2e 1184# elif defined(__CYGWIN__)
667e2948
SP
1185EXTERN_C char *crypt(const char *, const char *);
1186#endif
83a6ff2e 1187#endif
667e2948 1188
1e743fda
JH
1189#ifdef SETERRNO
1190# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1191#endif
f86702cc
PP
1192
1193#ifdef VMS
1194# define SETERRNO(errcode,vmserrcode) \
1195 STMT_START { \
1196 set_errno(errcode); \
1197 set_vaxc_errno(vmserrcode); \
1198 } STMT_END
4ee39169
CS
1199# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1200# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1201# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1202# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1203
93189314
JH
1204# define LIB_INVARG LIB$_INVARG
1205# define RMS_DIR RMS$_DIR
1206# define RMS_FAC RMS$_FAC
1207# define RMS_FEX RMS$_FEX
1208# define RMS_FNF RMS$_FNF
1209# define RMS_IFI RMS$_IFI
1210# define RMS_ISI RMS$_ISI
1211# define RMS_PRV RMS$_PRV
1212# define SS_ACCVIO SS$_ACCVIO
1213# define SS_DEVOFFLINE SS$_DEVOFFLINE
1214# define SS_IVCHAN SS$_IVCHAN
1215# define SS_NORMAL SS$_NORMAL
8a9f18be 1216# define SS_NOPRIV SS$_NOPRIV
748a9306 1217#else
93189314
JH
1218# define LIB_INVARG 0
1219# define RMS_DIR 0
1220# define RMS_FAC 0
1221# define RMS_FEX 0
1222# define RMS_FNF 0
1223# define RMS_IFI 0
1224# define RMS_ISI 0
1225# define RMS_PRV 0
1226# define SS_ACCVIO 0
1227# define SS_DEVOFFLINE 0
1228# define SS_IVCHAN 0
1229# define SS_NORMAL 0
8a9f18be 1230# define SS_NOPRIV 0
748a9306 1231#endif
ed6116ce 1232
6ca940a9
TC
1233#ifdef WIN32
1234# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1235# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1236# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1237# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1238#endif
1239
1240#ifdef OS2
1241# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1242# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1243# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1244# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1245#endif
1246
1247#ifndef SETERRNO
1248# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1249#endif
1250
1251#ifndef dSAVEDERRNO
1252# define dSAVEDERRNO int saved_errno
1253# define dSAVE_ERRNO int saved_errno = errno
1254# define SAVE_ERRNO (saved_errno = errno)
1255# define RESTORE_ERRNO (errno = saved_errno)
1256#endif
1257
f5fa9033 1258#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1259
1260#define CLEAR_ERRSV() STMT_START { \
1261 if (!GvSV(PL_errgv)) { \
1262 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1263 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1264 SvREFCNT_dec(GvSV(PL_errgv)); \
1265 GvSV(PL_errgv) = newSVpvs(""); \
1266 } else { \
1267 SV *const errsv = GvSV(PL_errgv); \
1268 sv_setpvs(errsv, ""); \
1269 if (SvMAGICAL(errsv)) { \
1270 mg_free(errsv); \
1271 } \
1272 SvPOK_only(errsv); \
1273 } \
1274 } STMT_END
1275
1276
414bf5ae
MHM
1277#ifdef PERL_CORE
1278# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1279# define DEFSV_set(sv) \
1280 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1281# define SAVE_DEFSV \
1282 ( \
1283 save_gp(PL_defgv, 0), \
1284 GvINTRO_off(PL_defgv), \
1285 SAVEGENERICSV(GvSV(PL_defgv)), \
1286 GvSV(PL_defgv) = NULL \
1287 )
414bf5ae
MHM
1288#else
1289# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1290# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1291# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1292#endif
38a03e6e 1293
55497cff 1294#ifndef errno
5ff3f7a4
GS
1295 extern int errno; /* ANSI allows errno to be an lvalue expr.
1296 * For example in multithreaded environments
1297 * something like this might happen:
1298 * extern int *_errno(void);
1299 * #define errno (*_errno()) */
d9d8d8de 1300#endif
663a0e37 1301
7e996671
KW
1302#define UNKNOWN_ERRNO_MSG "(unknown)"
1303
2304df62 1304#ifdef HAS_STRERROR
b3e384bf 1305# ifndef DONT_DECLARE_STD
a0d0e21e 1306# ifdef VMS
20ce7b12 1307 char *strerror (int,...);
a0d0e21e 1308# else
20ce7b12 1309 char *strerror (int);
a0d0e21e 1310# endif
b3e384bf
KW
1311# endif
1312# ifndef Strerror
1313# define Strerror strerror
1314# endif
2304df62
AD
1315#else
1316# ifdef HAS_SYS_ERRLIST
79072805
LW
1317 extern int sys_nerr;
1318 extern char *sys_errlist[];
2304df62
AD
1319# ifndef Strerror
1320# define Strerror(e) \
7e996671 1321 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1322# endif
79072805 1323# endif
35c8bce7 1324#endif
663a0e37 1325
2304df62 1326#ifdef I_SYS_IOCTL
79072805
LW
1327# ifndef _IOCTL_
1328# include <sys/ioctl.h>
1329# endif
a687059c
LW
1330#endif
1331
ee0007ab 1332#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1333# ifdef HAS_SOCKETPAIR
1334# undef HAS_SOCKETPAIR
1335# endif
2304df62
AD
1336# ifdef I_NDBM
1337# undef I_NDBM
79072805 1338# endif
a687059c
LW
1339#endif
1340
02fc2eee
NC
1341#ifndef HAS_SOCKETPAIR
1342# ifdef HAS_SOCKET
1343# define socketpair Perl_my_socketpair
1344# endif
1345#endif
1346
a687059c 1347#if INTSIZE == 2
79072805
LW
1348# define htoni htons
1349# define ntohi ntohs
a687059c 1350#else
79072805
LW
1351# define htoni htonl
1352# define ntohi ntohl
a687059c
LW
1353#endif
1354
a0d0e21e 1355/* Configure already sets Direntry_t */
35c8bce7 1356#if defined(I_DIRENT)
663a0e37 1357# include <dirent.h>
ae986130 1358#else
fe14fcc3 1359# ifdef I_SYS_NDIR
79a0689e 1360# include <sys/ndir.h>
663a0e37 1361# else
fe14fcc3 1362# ifdef I_SYS_DIR
79a0689e
LW
1363# ifdef hp9000s500
1364# include <ndir.h> /* may be wrong in the future */
1365# else
1366# include <sys/dir.h>
1367# endif
663a0e37
LW
1368# endif
1369# endif
4633a7c4 1370#endif
a687059c 1371
c623bd54
LW
1372/*
1373 * The following gobbledygook brought to you on behalf of __STDC__.
1374 * (I could just use #ifndef __STDC__, but this is more bulletproof
1375 * in the face of half-implementations.)
1376 */
1377
21e89b5f 1378#if defined(I_SYSMODE)
ca6e1c26
JH
1379#include <sys/mode.h>
1380#endif
1381
c623bd54
LW
1382#ifndef S_IFMT
1383# ifdef _S_IFMT
1384# define S_IFMT _S_IFMT
1385# else
1386# define S_IFMT 0170000
1387# endif
1388#endif
1389
1390#ifndef S_ISDIR
1391# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1392#endif
1393
1394#ifndef S_ISCHR
1395# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1396#endif
1397
1398#ifndef S_ISBLK
fe14fcc3
LW
1399# ifdef S_IFBLK
1400# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1401# else
1402# define S_ISBLK(m) (0)
1403# endif
c623bd54
LW
1404#endif
1405
1406#ifndef S_ISREG
1407# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1408#endif
1409
1410#ifndef S_ISFIFO
fe14fcc3
LW
1411# ifdef S_IFIFO
1412# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1413# else
1414# define S_ISFIFO(m) (0)
1415# endif
c623bd54
LW
1416#endif
1417
1418#ifndef S_ISLNK
1419# ifdef _S_ISLNK
1420# define S_ISLNK(m) _S_ISLNK(m)
1421# else
1422# ifdef _S_IFLNK
1423# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1424# else
1425# ifdef S_IFLNK
1426# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1427# else
1428# define S_ISLNK(m) (0)
1429# endif
1430# endif
1431# endif
1432#endif
1433
1434#ifndef S_ISSOCK
1435# ifdef _S_ISSOCK
1436# define S_ISSOCK(m) _S_ISSOCK(m)
1437# else
1438# ifdef _S_IFSOCK
1439# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1440# else
1441# ifdef S_IFSOCK
1442# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1443# else
1444# define S_ISSOCK(m) (0)
1445# endif
1446# endif
1447# endif
1448#endif
1449
1450#ifndef S_IRUSR
1451# ifdef S_IREAD
1452# define S_IRUSR S_IREAD
1453# define S_IWUSR S_IWRITE
1454# define S_IXUSR S_IEXEC
1455# else
1456# define S_IRUSR 0400
1457# define S_IWUSR 0200
1458# define S_IXUSR 0100
1459# endif
fac7cdfc 1460#endif
1461
1462#ifndef S_IRGRP
1463# ifdef S_IRUSR
1464# define S_IRGRP (S_IRUSR>>3)
1465# define S_IWGRP (S_IWUSR>>3)
1466# define S_IXGRP (S_IXUSR>>3)
1467# else
1468# define S_IRGRP 0040
1469# define S_IWGRP 0020
1470# define S_IXGRP 0010
1471# endif
1472#endif
1473
1474#ifndef S_IROTH
1475# ifdef S_IRUSR
1476# define S_IROTH (S_IRUSR>>6)
1477# define S_IWOTH (S_IWUSR>>6)
1478# define S_IXOTH (S_IXUSR>>6)
1479# else
1480# define S_IROTH 0040
1481# define S_IWOTH 0020
1482# define S_IXOTH 0010
1483# endif
c623bd54
LW
1484#endif
1485
1486#ifndef S_ISUID
1487# define S_ISUID 04000
1488#endif
1489
1490#ifndef S_ISGID
1491# define S_ISGID 02000
1492#endif
1493
ca6e1c26
JH
1494#ifndef S_IRWXU
1495# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1496#endif
ca6e1c26
JH
1497
1498#ifndef S_IRWXG
1499# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1500#endif
ca6e1c26
JH
1501
1502#ifndef S_IRWXO
1503# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1504#endif
ca6e1c26 1505
b6c36746 1506/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1507 * which would get included through <sys/file.h >, but that is 3000
1508 * lines in the future. --jhi */
1509
b6c36746 1510#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1511# define S_IREAD S_IRUSR
1512#endif
1513
b6c36746 1514#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1515# define S_IWRITE S_IWUSR
1516#endif
1517
1518#ifndef S_IEXEC
1519# define S_IEXEC S_IXUSR
1520#endif
1521
a0d0e21e 1522#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1523# define SLOPPYDIVIDE
1524#endif
1525
748a9306
LW
1526#ifdef UV
1527#undef UV
1528#endif
1529
ce582cee
NC
1530/* For the times when you want the return value of sprintf, and you want it
1531 to be the length. Can't have a thread variable passed in, because C89 has
1532 no varargs macros.
1533*/
1534#ifdef SPRINTF_RETURNS_STRLEN
1535# define my_sprintf sprintf
1536#else
1537# define my_sprintf Perl_my_sprintf
1538#endif
1539
5b692037
JH
1540/*
1541 * If we have v?snprintf() and the C99 variadic macros, we can just
1542 * use just the v?snprintf(). It is nice to try to trap the buffer
1543 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1544 * gcc statement expressions, then use the function wrappers which try
1545 * to trap the overflow. If we can use the gcc statement expressions,
1546 * we can try that even with the version that uses the C99 variadic
1547 * macros.
5b692037
JH
1548 */
1549
1208b3dd
JH
1550/* Note that we do not check against snprintf()/vsnprintf() returning
1551 * negative values because that is non-standard behaviour and we use
1552 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1553 * that should be true only if the snprintf()/vsnprintf() are true
1554 * to the standard. */
1555
e8549682
JH
1556#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
1557
dfeee9b1 1558#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1559# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1560# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1561# define PERL_MY_SNPRINTF_GUARDED
5b692037 1562# else
e8549682 1563# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1564# endif
1565#else
1566# define my_snprintf Perl_my_snprintf
1208b3dd 1567# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1568#endif
1569
dfeee9b1 1570#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1571# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1572# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1573# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1574# else
e8549682 1575# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1576# endif
1577#else
1578# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1579# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1580#endif
d9fad198 1581
e8549682
JH
1582/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1583 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1584 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1585 * completely ignore it: otherwise you cannot know whether your output
1586 * was too long.)
1587 *
1588 * int len = my_sprintf(buf, max, ...);
1589 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1590 *
1591 * The trick is that in certain platforms [a] the my_sprintf() already
1592 * contains the sanity check, while in certain platforms [b] it needs
1593 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1594 * platforms the POST_GUARD actually does nothing since the check has
1595 * already been done. Watch out for the max being the same in both calls.
1596 *
1597 * If you actually use the snprintf/vsnprintf return value already,
1598 * you assumedly are checking its validity somehow. But you can
1599 * insert the POST_GUARD() also in that case. */
1600
1601#ifndef PERL_MY_SNPRINTF_GUARDED
1602# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1603#else
1604# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1605#endif
1606
1607#ifndef PERL_MY_VSNPRINTF_GUARDED
1608# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1609#else
1610# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1611#endif
1612
a6cc4119
SP
1613#ifdef HAS_STRLCAT
1614# define my_strlcat strlcat
1615#else
1616# define my_strlcat Perl_my_strlcat
1617#endif
1618
1619#ifdef HAS_STRLCPY
1620# define my_strlcpy strlcpy
1621#else
1622# define my_strlcpy Perl_my_strlcpy
1623#endif
1624
05f13f53 1625/*
27d4fb96
PP
1626 The IV type is supposed to be long enough to hold any integral
1627 value or a pointer.
1628 --Andy Dougherty August 1996
1629*/
1630
a22e52b9
JH
1631typedef IVTYPE IV;
1632typedef UVTYPE UV;
8175356b 1633
10cc9d2a 1634#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1635# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1636# define IV_MAX INT64_MAX
1637# define IV_MIN INT64_MIN
1638# define UV_MAX UINT64_MAX
cae7ae48
JH
1639# ifndef UINT64_MIN
1640# define UINT64_MIN 0
1641# endif
5ff3f7a4
GS
1642# define UV_MIN UINT64_MIN
1643# else
1644# define IV_MAX PERL_QUAD_MAX
1645# define IV_MIN PERL_QUAD_MIN
1646# define UV_MAX PERL_UQUAD_MAX
1647# define UV_MIN PERL_UQUAD_MIN
1648# endif
cf2093f6
JH
1649# define IV_IS_QUAD
1650# define UV_IS_QUAD
79072805 1651#else
8175356b 1652# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1653# define IV_MAX INT32_MAX
1654# define IV_MIN INT32_MIN
716026f9
DL
1655# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1656# define UV_MAX UINT32_MAX
1657# else
1658# define UV_MAX 4294967295U
1659# endif
cae7ae48
JH
1660# ifndef UINT32_MIN
1661# define UINT32_MIN 0
1662# endif
5ff3f7a4
GS
1663# define UV_MIN UINT32_MIN
1664# else
1665# define IV_MAX PERL_LONG_MAX
1666# define IV_MIN PERL_LONG_MIN
1667# define UV_MAX PERL_ULONG_MAX
1668# define UV_MIN PERL_ULONG_MIN
1669# endif
8175356b 1670# if IVSIZE == 8
cf2093f6
JH
1671# define IV_IS_QUAD
1672# define UV_IS_QUAD
de1c2614
JH
1673# ifndef HAS_QUAD
1674# define HAS_QUAD
1675# endif
cf2093f6
JH
1676# else
1677# undef IV_IS_QUAD
1678# undef UV_IS_QUAD
9ea40801 1679#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1680/* We think that removing this decade-old undef this will cause too much
1681 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1682 However, we do need HAS_QUAD in the core for use by the drand48 code,
1683 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1684# undef HAS_QUAD
e25d460c 1685#endif
cf2093f6 1686# endif
79072805 1687#endif
d7d93a81 1688
6313e544
JH
1689#define Size_t_MAX (~(Size_t)0)
1690#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1691
cae7ae48 1692#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1693#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1694
28e5dec8 1695#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1696#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1697#endif
1698
d460ef45 1699/*
26bb67e2
JH
1700 * The macros INT2PTR and NUM2PTR are (despite their names)
1701 * bi-directional: they will convert int/float to or from pointers.
1702 * However the conversion to int/float are named explicitly:
1703 * PTR2IV, PTR2UV, PTR2NV.
1704 *
1705 * For int conversions we do not need two casts if pointers are
1706 * the same size as IV and UV. Otherwise we need an explicit
1707 * cast (PTRV) to avoid compiler warnings.
1708 */
56431972
RB
1709#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1710# define PTRV UV
1711# define INT2PTR(any,d) (any)(d)
1712#else
d460ef45 1713# if PTRSIZE == LONGSIZE
56431972 1714# define PTRV unsigned long
e91e3b10 1715# define PTR2ul(p) (unsigned long)(p)
42718184 1716# else
56431972 1717# define PTRV unsigned
42718184 1718# endif
e91e3b10
RB
1719#endif
1720
1721#ifndef INT2PTR
56431972 1722# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1723#endif
e91e3b10
RB
1724
1725#ifndef PTR2ul
1726# define PTR2ul(p) INT2PTR(unsigned long,p)
1727#endif
1728
56431972
RB
1729#define NUM2PTR(any,d) (any)(PTRV)(d)
1730#define PTR2IV(p) INT2PTR(IV,p)
1731#define PTR2UV(p) INT2PTR(UV,p)
1732#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1733#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1734
8141890a
JH
1735/* According to strict ANSI C89 one cannot freely cast between
1736 * data pointers and function (code) pointers. There are at least
1737 * two ways around this. One (used below) is to do two casts,
1738 * first the other pointer to an (unsigned) integer, and then
1739 * the integer to the other pointer. The other way would be
1740 * to use unions to "overlay" the pointers. For an example of
1741 * the latter technique, see union dirpu in struct xpvio in sv.h.
1742 * The only feasible use is probably temporarily storing
1743 * function pointers in a data pointer (such as a void pointer). */
1744
e91e3b10
RB
1745#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1746#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1747
65202027 1748#ifdef USE_LONG_DOUBLE
1048ea30
JH
1749# if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1750# define LONG_DOUBLE_EQUALS_DOUBLE
1751# endif
68d4903c 1752# if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
2d4389e4 1753# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1754# endif
1755#endif
1756
2d4389e4
JH
1757#ifdef OVR_DBL_DIG
1758/* Use an overridden DBL_DIG */
1759# ifdef DBL_DIG
1760# undef DBL_DIG
1761# endif
1762# define DBL_DIG OVR_DBL_DIG
1763#else
1764/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1765 default value for printing floating point numbers in Gconvert
1766 (see config.h). (It also has other uses, such as figuring out if
1767 a given precision of printing can be done with a double instead of
1768 a long double - Allen).
2d4389e4
JH
1769*/
1770#ifdef I_LIMITS
1771#include <limits.h>
1772#endif
1773#ifdef I_FLOAT
1774#include <float.h>
1775#endif
1776#ifndef HAS_DBL_DIG
1777#define DBL_DIG 15 /* A guess that works lots of places */
1778#endif
1779#endif
1780
1781#ifdef OVR_LDBL_DIG
1782/* Use an overridden LDBL_DIG */
1783# ifdef LDBL_DIG
1784# undef LDBL_DIG
1785# endif
1786# define LDBL_DIG OVR_LDBL_DIG
1787#else
1788/* The following is all to get LDBL_DIG, in order to pick a nice
1789 default value for printing floating point numbers in Gconvert.
1790 (see config.h)
1791*/
68d4903c
JH
1792# ifdef I_LIMITS
1793# include <limits.h>
1794# endif
1795# ifdef I_FLOAT
1796# include <float.h>
1797# endif
1798# ifndef HAS_LDBL_DIG
1799# if LONG_DOUBLESIZE == 10
1800# define LDBL_DIG 18 /* assume IEEE */
1801# else
1802# if LONG_DOUBLESIZE == 12
1803# define LDBL_DIG 18 /* gcc? */
1804# else
1805# if LONG_DOUBLESIZE == 16
1806# define LDBL_DIG 33 /* assume IEEE */
1807# else
1808# if LONG_DOUBLESIZE == DOUBLESIZE
1809# define LDBL_DIG DBL_DIG /* bummer */
1810# endif
1811# endif
1812# endif
1813# endif
1814# endif
2d4389e4
JH
1815#endif
1816
20f6aaab
AS
1817/*
1818 * This is for making sure we have a good DBL_MAX value, if possible,
1819 * either for usage as NV_MAX or for usage in figuring out if we can
1820 * fit a given long double into a double, if bug-fixing makes it
1821 * necessary to do so. - Allen <allens@cpan.org>
1822 */
1823
205f51d8
AS
1824#ifdef I_LIMITS
1825# include <limits.h>
20f6aaab
AS
1826#endif
1827
205f51d8
AS
1828#ifdef I_VALUES
1829# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1830# include <values.h>
1831# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1832# define DBL_MAX MAXDOUBLE
1833# endif
1834# if defined(MINDOUBLE) && !defined(DBL_MIN)
1835# define DBL_MIN MINDOUBLE
1836# endif
1837# endif
1838#endif /* defined(I_VALUES) */
1839
a22e52b9 1840typedef NVTYPE NV;
8175356b 1841
792d8dab
JH
1842#ifdef I_IEEEFP
1843# include <ieeefp.h>
1844#endif
923fc586 1845
65202027 1846#ifdef USE_LONG_DOUBLE
923fc586
JH
1847# ifdef I_SUNMATH
1848# include <sunmath.h>
1849# endif
2d4389e4 1850# define NV_DIG LDBL_DIG
d6c14000
JH
1851# ifdef LDBL_MANT_DIG
1852# define NV_MANT_DIG LDBL_MANT_DIG
1853# endif
06fc1729
JH
1854# ifdef LDBL_MIN
1855# define NV_MIN LDBL_MIN
1856# endif
1857# ifdef LDBL_MAX
1858# define NV_MAX LDBL_MAX
1859# endif
40bca5ae
JH
1860# ifdef LDBL_MIN_EXP
1861# define NV_MIN_EXP LDBL_MIN_EXP
1862# endif
1863# ifdef LDBL_MAX_EXP
1864# define NV_MAX_EXP LDBL_MAX_EXP
1865# endif
06fc1729
JH
1866# ifdef LDBL_MIN_10_EXP
1867# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1868# endif
1869# ifdef LDBL_MAX_10_EXP
1870# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1871# endif
1872# ifdef LDBL_EPSILON
1873# define NV_EPSILON LDBL_EPSILON
1874# endif
f4a14a62
JH
1875# ifdef LDBL_MAX
1876# define NV_MAX LDBL_MAX
20f6aaab 1877/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62
JH
1878# else
1879# ifdef HUGE_VALL
1880# define NV_MAX HUGE_VALL
1881# else
1882# ifdef HUGE_VAL
1883# define NV_MAX ((NV)HUGE_VAL)
1884# endif
1885# endif
1886# endif
68d4903c 1887# ifdef HAS_SQRTL
68d4903c
JH
1888# define Perl_cos cosl
1889# define Perl_sin sinl
1890# define Perl_sqrt sqrtl
1891# define Perl_exp expl
1892# define Perl_log logl
1893# define Perl_atan2 atan2l
1894# define Perl_pow powl
1895# define Perl_floor floorl
1bbae031 1896# define Perl_ceil ceill
68d4903c 1897# define Perl_fmod fmodl
8a00eddc
JH
1898# define Perl_acos acosl
1899# define Perl_asin asinl
1900# define Perl_atan atanl
1901# define Perl_cosh coshl
1902# define Perl_log10 log10l
1903# define Perl_sinh sinhl
1904# define Perl_tan tanl
1905# define Perl_tanh tanhl
68d4903c 1906# endif
a3540c92
JH
1907/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1908# ifdef HAS_MODFL
1909# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1910/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1911 prototype in <math.h> */
1912# ifndef HAS_MODFL_PROTO
a221a8a5 1913EXTERN_C long double modfl(long double, long double *);
51997bc3 1914# endif
d67dac15 1915# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1916 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1917# define Perl_modf(x,y) Perl_my_modfl(x,y)
a3540c92
JH
1918# endif
1919# ifdef HAS_FREXPL
dff3e0b8 1920# define Perl_frexp(x,y) frexpl(x,y)
03476e8e
JH
1921# else
1922# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
55954f19 1923 extern long double Perl_my_frexpl(long double x, int *e);
03476e8e
JH
1924# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1925# endif
a3540c92 1926# endif
98181445
JH
1927# ifdef HAS_LDEXPL
1928# define Perl_ldexp(x, y) ldexpl(x,y)
1929# else
1930# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1931# define Perl_ldexp(x,y) scalbnl(x,y)
1932# endif
1933# endif
38dbb4c5 1934# ifndef Perl_isnan
86a3cabf 1935# if defined(HAS_ISNANL) && !(defined(isnan) && HAS_C99)
758a5d79
JH
1936# define Perl_isnan(x) isnanl(x)
1937# endif
1938# endif
1939# ifndef Perl_isinf
86a3cabf 1940# if defined(HAS_ISINFL) && !(defined(isinf) && HAS_C99)
87190886 1941# define Perl_isinf(x) isinfl(x)
efcbf317
JH
1942# elif defined(LDBL_MAX)
1943# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1944# endif
1945# endif
86a3cabf 1946# if !defined(Perl_isfinite) && !(defined(isfinite) && HAS_C99)
4efd38a4
JH
1947# ifdef HAS_ISFINITEL
1948# define Perl_isfinite(x) isfinitel(x)
1949# elif defined(HAS_FINITEL)
1950# define Perl_isfinite(x) finitel(x)
efcbf317
JH
1951# elif defined(LDBL_MAX)
1952# define Perl_isfinite(x) ((x) <= LDBL_MAX && (x) >= -LDBL_MAX)
4efd38a4
JH
1953# endif
1954# endif
65202027 1955#else
2d4389e4 1956# define NV_DIG DBL_DIG
d6c14000
JH
1957# ifdef DBL_MANT_DIG
1958# define NV_MANT_DIG DBL_MANT_DIG
1959# endif
06fc1729
JH
1960# ifdef DBL_MIN
1961# define NV_MIN DBL_MIN
1962# endif
1963# ifdef DBL_MAX
1964# define NV_MAX DBL_MAX
1965# endif
40bca5ae
JH
1966# ifdef DBL_MIN_EXP
1967# define NV_MIN_EXP DBL_MIN_EXP
1968# endif
1969# ifdef DBL_MAX_EXP
1970# define NV_MAX_EXP DBL_MAX_EXP
1971# endif
06fc1729
JH
1972# ifdef DBL_MIN_10_EXP
1973# define NV_MIN_10_EXP DBL_MIN_10_EXP
1974# endif
1975# ifdef DBL_MAX_10_EXP
1976# define NV_MAX_10_EXP DBL_MAX_10_EXP
1977# endif
1978# ifdef DBL_EPSILON
1979# define NV_EPSILON DBL_EPSILON
1980# endif
205f51d8 1981# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
1982# define NV_MAX DBL_MAX
1983# define NV_MIN DBL_MIN
1984# else
1985# ifdef HUGE_VAL
1986# define NV_MAX HUGE_VAL
1987# endif
1988# endif
65202027
DS
1989# define Perl_cos cos
1990# define Perl_sin sin
1991# define Perl_sqrt sqrt
1992# define Perl_exp exp
1993# define Perl_log log
1994# define Perl_atan2 atan2
1995# define Perl_pow pow
1996# define Perl_floor floor
1bbae031 1997# define Perl_ceil ceil
65202027 1998# define Perl_fmod fmod
a3540c92 1999# define Perl_modf(x,y) modf(x,y)
dff3e0b8 2000# define Perl_frexp(x,y) frexp(x,y)
98181445 2001# define Perl_ldexp(x,y) ldexp(x,y)
8a00eddc
JH
2002# define Perl_acos acos
2003# define Perl_asin asin
2004# define Perl_atan atan
2005# define Perl_cosh cosh
2006# define Perl_log10 log10
2007# define Perl_sinh sinh
2008# define Perl_tan tan
2009# define Perl_tanh tanh
1a322af2
JH
2010# ifndef Perl_isnan
2011# ifdef HAS_ISNAN
2012# define Perl_isnan(x) isnan(x)
2013# endif
2014# endif
2015# ifndef Perl_isinf
2016# if defined(HAS_ISINF)
2017# define Perl_isinf(x) isinf(x)
efcbf317
JH
2018# elif defined(DBL_MAX)
2019# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2020# endif
2021# endif
2022# ifndef Perl_isfinite
2023# ifdef HAS_ISFINITE
2024# define Perl_isfinite(x) isfinite(x)
2025# elif defined(HAS_FINITE)
2026# define Perl_isfinite(x) finite(x)
efcbf317
JH
2027# elif defined(DBL_MAX)
2028# define Perl_isfinite(x) ((x) <= DBL_MAX && (x) >= -DBL_MAX)
1a322af2
JH
2029# endif
2030# endif
758a5d79
JH
2031#endif
2032
30404d48
JH
2033/* fpclassify(): C99. It is supposed to be a macro that switches on
2034* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2035#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2036# include <math.h>
25c46df8
JH
2037# if defined(FP_INFINITE) && defined(FP_NAN)
2038# define Perl_fp_class(x) fpclassify(x)
2039# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2040# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2041# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2042# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2043# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2044# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2045/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2046 * actually not the C99 fpclassify, with its own set of return defines. */
2047# define Perl_fp_class(x) fpclassify(x)
2048# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2049# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2050# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2051# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2052# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2053# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2054# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2055# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2056# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2057# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2058# else
2059# undef Perl_fp_class /* Unknown set of defines */
2060# endif
30404d48
JH
2061#endif
2062
25c46df8
JH
2063/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2064 * are identical to the C99 fpclassify(). */
2065#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2066# include <math.h>
558f3e66
CB
2067# ifdef __VMS
2068 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2069# include <fp.h>
56610b8f
CB
2070 /* oh, and the isnormal macro has a typo in it! */
2071# undef isnormal
2072# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2073# endif
25c46df8
JH
2074# if defined(FP_INFINITE) && defined(FP_NAN)
2075# define Perl_fp_class(x) fp_classify(x)
2076# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2077# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2078# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2079# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2080# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2081# else
2082# undef Perl_fp_class /* Unknown set of defines */
2083# endif
f279e099 2084#endif
205f51d8 2085
30404d48
JH
2086/* Feel free to check with me for the SGI manpages, SGI testing,
2087 * etcetera, if you want to try getting this to work with IRIX.
2088 *
2089 * - Allen <allens@cpan.org> */
2090
2091/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2092#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2093/* Solaris and IRIX have fpclass/fpclassl, but they are using
2094 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2095 * Define some symbols also as cpp symbols so we can detect them. */
2096# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2097# define FP_PINF FP_PINF
2098# define FP_QNAN FP_QNAN
2099# endif
f279e099 2100# include <math.h>
758a5d79
JH
2101# ifdef I_IEEFP
2102# include <ieeefp.h>
2103# endif
2104# ifdef I_FP
2105# include <fp.h>
2106# endif
2107# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2108# define Perl_fp_class(x) fpclassl(x)
758a5d79 2109# else
f279e099
JH
2110# define Perl_fp_class(x) fpclass(x)
2111# endif
25c46df8 2112# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2113# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2114# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2115# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2116# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2117# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2118# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2119# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2120# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2121# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2122# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2123# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2124# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2125# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2126# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2127# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2128# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2129# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2130# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2131# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2132# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2133# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2134# else
2135# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2136# endif
758a5d79
JH
2137#endif
2138
30404d48
JH
2139/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2140#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2141# include <math.h>
2142# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2143# include <fp_class.h>
2144# endif
25c46df8
JH
2145# if defined(FP_POS_INF) && defined(FP_QNAN)
2146# ifdef __irix__ /* XXX Configure test instead */
2147# ifdef USE_LONG_DOUBLE
2148# define Perl_fp_class(x) fp_class_l(x)
2149# else
2150# define Perl_fp_class(x) fp_class_d(x)
2151# endif
f279e099 2152# else
25c46df8
JH
2153# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2154# define Perl_fp_class(x) fp_classl(x)
2155# else
2156# define Perl_fp_class(x) fp_class(x)
2157# endif
f279e099 2158# endif
25c46df8
JH
2159# if defined(FP_POS_INF) && defined(FP_QNAN)
2160# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2161# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2162# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2163# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2164# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2165# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2166# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2167# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2168# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2169# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2170# else
25c46df8 2171# undef Perl_fp_class /* Unknown set of defines */
30404d48 2172# endif
f279e099 2173# endif
30404d48
JH
2174#endif
2175
052758ae 2176/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2177#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2178# include <math.h>
25c46df8
JH
2179# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2180# ifndef _cplusplus
2181# define Perl_fp_class(x) class(x)
2182# else
2183# define Perl_fp_class(x) _class(x)
2184# endif
2185# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2186# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2187# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2188# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2189# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2190# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2191# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2192# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2193# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2194# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2195# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2196# else
2197# undef Perl_fp_class /* Unknown set of defines */
2198# endif
758a5d79 2199# endif
30404d48
JH
2200#endif
2201
2202/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2203#ifdef WIN32
2204# ifndef Perl_isnan
2205# define Perl_isnan(x) _isnan(x)
2206# endif
2207# ifndef Perl_isfinite
2208# define Perl_isfinite(x) _finite(x)
2209# endif
2210# ifndef Perl_fp_class_snan
25c46df8
JH
2211/* No simple way to #define Perl_fp_class because _fpclass()
2212 * returns a set of bits. */
796ea9ea
JH
2213# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2214# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2215# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2216# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2217# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2218# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2219# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2220# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2221# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2222# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2223# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2224# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2225# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2226# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2227# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2228# endif
f279e099
JH
2229#endif
2230
2231#if !defined(Perl_fp_class_inf) && \
2232 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2233# define Perl_fp_class_inf(x) \
2234 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2235#endif
2236
2237#if !defined(Perl_fp_class_nan) && \
2238 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2239# define Perl_fp_class_nan(x) \
2240 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2241#endif
2242
2243#if !defined(Perl_fp_class_zero) && \
2244 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2245# define Perl_fp_class_zero(x) \
2246 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2247#endif
2248
2249#if !defined(Perl_fp_class_norm) && \
2250 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2251# define Perl_fp_class_norm(x) \
2252 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2253#endif
2254
2255#if !defined(Perl_fp_class_denorm) && \
2256 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2257# define Perl_fp_class_denorm(x) \
2258 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2259#endif
758a5d79 2260
1a322af2
JH
2261#ifdef UNDER_CE
2262int isnan(double d);
2263#endif
2264
758a5d79 2265#ifndef Perl_isnan
1a322af2
JH
2266# ifdef Perl_fp_class_nan
2267# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2268# else
1a322af2
JH
2269# ifdef HAS_UNORDERED
2270# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2271# else
1a322af2 2272# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2273# endif
2274# endif
2275#endif
2276
1a322af2
JH
2277#ifndef Perl_isinf
2278# ifdef Perl_fp_class_inf
2279# define Perl_isinf(x) Perl_fp_class_inf(x)
2280# endif
ca6c63e1
JH
2281#endif
2282
758a5d79 2283#ifndef Perl_isfinite
25c46df8 2284# if defined(HAS_ISFINITE) && !defined(isfinite)
87190886 2285# define Perl_isfinite(x) isfinite((double)x)
4efd38a4 2286# elif defined(HAS_FINITE)
87190886 2287# define Perl_isfinite(x) finite((double)x)
4efd38a4
JH
2288# elif defined(Perl_fp_class_finite)
2289# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2290# else
4efd38a4
JH
2291/* NaN*0 is NaN, [+-]Inf*0 is NaN, zero for anything else. */
2292# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2293# endif
65202027
DS
2294#endif
2295
25c46df8
JH
2296#ifndef Perl_isinf
2297# if defined(Perl_isfinite) && defined(Perl_isnan)
2298# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2299# endif
2300#endif
2301
a36244b7
JH
2302/* The default is to use Perl's own atof() implementation (in numeric.c).
2303 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2304 * it is however best to use the native implementation of atof.
2305 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2306 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2307 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2308 * you may need to be using a different function than atof! */
a36244b7
JH
2309
2310#ifndef USE_PERL_ATOF
2311# ifndef _UNICOS
2312# define USE_PERL_ATOF
2313# endif
2314#else
2315# if USE_PERL_ATOF == 0
2316# undef USE_PERL_ATOF
2317# endif
2318#endif
2319
2320#ifdef USE_PERL_ATOF
2321# define Perl_atof(s) Perl_my_atof(s)
2322# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2323#else
2324# define Perl_atof(s) (NV)atof(s)
2325# define Perl_atof2(s, n) ((n) = atof(s))
2326#endif
cf2093f6 2327
d460ef45 2328/* Previously these definitions used hardcoded figures.
760ac839
LW
2329 * It is hoped these formula are more portable, although
2330 * no data one way or another is presently known to me.
2331 * The "PERL_" names are used because these calculated constants
2332 * do not meet the ANSI requirements for LONG_MAX, etc., which
2333 * need to be constants acceptable to #if - kja
2334 * define PERL_LONG_MAX 2147483647L
2335 * define PERL_LONG_MIN (-LONG_MAX - 1)
2336 * define PERL ULONG_MAX 4294967295L
2337 */
2338
2339#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2340# include <limits.h>
760ac839 2341#endif
205f51d8 2342/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2343 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2344
99abf803
PP
2345/*
2346 * Try to figure out max and min values for the integral types. THE CORRECT
2347 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2348 * following hacks are used if neither limits.h or values.h provide them:
2349 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2350 * for types < int: (unsigned TYPE)~(unsigned)0
2351 * The argument to ~ must be unsigned so that later signed->unsigned
2352 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2353 * and it must not be smaller than int because ~ does integral promotion.
2354 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2355 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2356 * The latter is a hack which happens to work on some machines but
2357 * does *not* catch any random system, or things like integer types
2358 * with NaN if that is possible.
2359 *
2360 * All of the types are explicitly cast to prevent accidental loss of
2361 * numeric range, and in the hope that they will be less likely to confuse
2362 * over-eager optimizers.
2363 *
2364 */
27d4fb96 2365
99abf803
PP
2366#define PERL_UCHAR_MIN ((unsigned char)0)
2367
2368#ifdef UCHAR_MAX
2369# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2370#else
99abf803
PP
2371# ifdef MAXUCHAR
2372# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2373# else
99abf803 2374# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2375# endif
2376#endif
d460ef45 2377
99abf803
PP
2378/*
2379 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2380 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2381 * depending on local options. Until Configure detects this (or at least
2382 * detects whether the "signed" keyword is available) the CHAR ranges
2383 * will not be included. UCHAR functions normally.
2384 * - kja
2385 */
27d4fb96 2386
99abf803
PP
2387#define PERL_USHORT_MIN ((unsigned short)0)
2388
2389#ifdef USHORT_MAX
2390# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2391#else
99abf803
PP
2392# ifdef MAXUSHORT
2393# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2394# else
ef2f54b0
CB
2395# ifdef USHRT_MAX
2396# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2397# else
2398# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2399# endif
27d4fb96
PP
2400# endif
2401#endif
2402
27d4fb96 2403#ifdef SHORT_MAX
99abf803 2404# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2405#else
2406# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2407# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2408# else
ef2f54b0
CB
2409# ifdef SHRT_MAX
2410# define PERL_SHORT_MAX ((short)SHRT_MAX)
2411# else
2412# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2413# endif
27d4fb96
PP
2414# endif
2415#endif
2416
2417#ifdef SHORT_MIN
99abf803 2418# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2419#else
2420# ifdef MINSHORT
99abf803 2421# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2422# else
ef2f54b0
CB
2423# ifdef SHRT_MIN
2424# define PERL_SHORT_MIN ((short)SHRT_MIN)
2425# else
2426# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2427# endif
27d4fb96
PP
2428# endif
2429#endif
2430
99abf803
PP
2431#ifdef UINT_MAX
2432# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2433#else
99abf803
PP
2434# ifdef MAXUINT
2435# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2436# else
99abf803 2437# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2438# endif
2439#endif
2440
99abf803 2441#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2442
2443#ifdef INT_MAX
99abf803 2444# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2445#else
2446# ifdef MAXINT /* Often used in <values.h> */
99abf803 2447# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2448# else
99abf803 2449# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2450# endif
2451#endif
2452
2453#ifdef INT_MIN
99abf803 2454# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2455#else
2456# ifdef MININT
99abf803 2457# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2458# else
2459# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2460# endif
2461#endif
2462
99abf803
PP
2463#ifdef ULONG_MAX
2464# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2465#else
99abf803
PP
2466# ifdef MAXULONG
2467# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2468# else
99abf803 2469# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2470# endif
2471#endif
2472
99abf803 2473#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2474
760ac839 2475#ifdef LONG_MAX
99abf803 2476# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2477#else
2478# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2479# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2480# else
99abf803 2481# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2482# endif
2483#endif
2484
2485#ifdef LONG_MIN
99abf803 2486# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2487#else
2488# ifdef MINLONG
99abf803 2489# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2490# else
27d4fb96 2491# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2492# endif
2493#endif
2494
d7d93a81 2495#ifdef UV_IS_QUAD
99abf803 2496
99abf803 2497# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2498# define PERL_UQUAD_MIN ((UV)0)
99abf803 2499# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2500# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2501
79072805
LW
2502#endif
2503
ee0007ab 2504typedef MEM_SIZE STRLEN;
450a55e4 2505
79072805
LW
2506typedef struct op OP;
2507typedef struct cop COP;
2508typedef struct unop UNOP;
2509typedef struct binop BINOP;
2510typedef struct listop LISTOP;
2511typedef struct logop LOGOP;
79072805
LW
2512typedef struct pmop PMOP;
2513typedef struct svop SVOP;
7934575e 2514typedef struct padop PADOP;
79072805 2515typedef struct pvop PVOP;
79072805
LW
2516typedef struct loop LOOP;
2517
7aef8e5b 2518#ifdef PERL_CORE
8be227ab
FC
2519typedef struct opslab OPSLAB;
2520typedef struct opslot OPSLOT;
2521#endif
2522
52db365a 2523typedef struct block_hooks BHK;
1830b3d9 2524typedef struct custom_op XOP;
52db365a 2525
cd1541b2
NC
2526typedef struct interpreter PerlInterpreter;
2527
d2b3f365 2528/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2529#if defined(__sgi)
d2b3f365 2530# define STRUCT_SV perl_sv
b8d3c5db
JH
2531#else
2532# define STRUCT_SV sv
2533#endif
2534typedef struct STRUCT_SV SV;
79072805
LW
2535typedef struct av AV;
2536typedef struct hv HV;
2537typedef struct cv CV;
d2f13c59 2538typedef struct p5rx REGEXP;
79072805 2539typedef struct gp GP;
0c30d9ec 2540typedef struct gv GV;
8990e307 2541typedef struct io IO;
c09156bb 2542typedef struct context PERL_CONTEXT;
79072805
LW
2543typedef struct block BLOCK;
2544
2545typedef struct magic MAGIC;
2546typedef struct xpv XPV;
2547typedef struct xpviv XPVIV;
ff68c719 2548typedef struct xpvuv XPVUV;
79072805
LW
2549typedef struct xpvnv XPVNV;
2550typedef struct xpvmg XPVMG;
2551typedef struct xpvlv XPVLV;
d361b004 2552typedef struct xpvinvlist XINVLIST;
79072805
LW
2553typedef struct xpvav XPVAV;
2554typedef struct xpvhv XPVHV;
2555typedef struct xpvgv XPVGV;
2556typedef struct xpvcv XPVCV;
2557typedef struct xpvbm XPVBM;
2558typedef struct xpvfm XPVFM;
8990e307 2559typedef struct xpvio XPVIO;
79072805
LW
2560typedef struct mgvtbl MGVTBL;
2561typedef union any ANY;
5f7fde29
GS
2562typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2563typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2564typedef struct clone_params CLONE_PARAMS;
2565
35e035cc 2566/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2567 * so hide the type. */
2568typedef struct padlist PADLIST;
67634234 2569typedef AV PAD;
35e035cc
FC
2570typedef AV PADNAMELIST;
2571typedef SV PADNAME;
67634234 2572
13b0f67d
DM
2573/* enable PERL_NEW_COPY_ON_WRITE by default */
2574#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2575# define PERL_NEW_COPY_ON_WRITE
2576#endif
07d01d6e 2577
db2c6cb3
FC
2578#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2579# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2580# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2581# else
2582# define PERL_ANY_COW
2583# endif
9f351b45
DM
2584#else
2585# define PERL_SAWAMPERSAND
db2c6cb3
FC
2586#endif
2587
378cc40b 2588#include "handy.h"
a0d0e21e 2589
6b8eaf93 2590#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2591# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2592# define USE_64_BIT_RAWIO /* implicit */
2593# endif
4564133c
JH
2594#endif
2595
6b8eaf93
JH
2596/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2597 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2598 * however, because operating systems like to do that themself. */
2599#ifndef FSEEKSIZE
2600# ifdef HAS_FSEEKO
2601# define FSEEKSIZE LSEEKSIZE
2602# else
2603# define FSEEKSIZE LONGSIZE
d460ef45 2604# endif
6b8eaf93
JH
2605#endif
2606
2607#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2608# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2609# define USE_64_BIT_STDIO /* implicit */
2610# endif
2611#endif
4564133c 2612
09458382 2613#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2614# ifdef HAS_OFF64_T
2615# undef Off_t
2616# define Off_t off64_t
2617# undef LSEEKSIZE
2618# define LSEEKSIZE 8
5ff3f7a4 2619# endif
d9b3e12d
JH
2620/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2621 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2622 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2623# if defined(USE_OPEN64)
2624# define open open64
5ff3f7a4 2625# endif
d9b3e12d
JH
2626# if defined(USE_LSEEK64)
2627# define lseek lseek64
6b8eaf93
JH
2628# else
2629# if defined(USE_LLSEEK)
2630# define lseek llseek
2631# endif
d9b3e12d
JH
2632# endif
2633# if defined(USE_STAT64)
2634# define stat stat64
2635# endif
2636# if defined(USE_FSTAT64)
2637# define fstat fstat64
2638# endif
2639# if defined(USE_LSTAT64)
2640# define lstat lstat64
2641# endif
2642# if defined(USE_FLOCK64)
2643# define flock flock64
2644# endif
2645# if defined(USE_LOCKF64)
2646# define lockf lockf64
2647# endif
2648# if defined(USE_FCNTL64)
2649# define fcntl fcntl64
2650# endif
2651# if defined(USE_TRUNCATE64)
2652# define truncate truncate64
2653# endif
2654# if defined(USE_FTRUNCATE64)
2655# define ftruncate ftruncate64
2656# endif
2657#endif
2658
2659#ifdef USE_64_BIT_STDIO
2660# ifdef HAS_FPOS64_T
2661# undef Fpos_t
2662# define Fpos_t fpos64_t
2663# endif
2664/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2665 * will trigger defines like the ones below. Some 64-bit environments,
2666 * however, do not. */
2667# if defined(USE_FOPEN64)
2668# define fopen fopen64
2669# endif
2670# if defined(USE_FSEEK64)
6b8eaf93 2671# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2672# endif
2673# if defined(USE_FTELL64)
6b8eaf93 2674# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2675# endif
2676# if defined(USE_FSETPOS64)
2677# define fsetpos fsetpos64
2678# endif
2679# if defined(USE_FGETPOS64)
2680# define fgetpos fgetpos64
2681# endif
2682# if defined(USE_TMPFILE64)
2683# define tmpfile tmpfile64
2684# endif
2685# if defined(USE_FREOPEN64)
2686# define freopen freopen64
5ff3f7a4
GS
2687# endif
2688#endif
2689
e37778c2 2690#if defined(OS2)
2c2d71f5
JH
2691# include "iperlsys.h"
2692#endif
2693
748a9306 2694#ifdef DOSISH
19848b3f
JH
2695# if defined(OS2)
2696# include "os2ish.h"
2697# else
2698# include "dosish.h"
2699# endif
009819bb 2700#elif defined(VMS)
748a9306 2701# include "vmsish.h"
009819bb 2702#elif defined(PLAN9)
19848b3f 2703# include "./plan9/plan9ish.h"
009819bb 2704#elif defined(__VOS__)
196918b0
PG
2705# ifdef __GNUC__
2706# include "./vos/vosish.h"
2707# else
2708# include "vos/vosish.h"
2709# endif
009819bb 2710#elif defined(__SYMBIAN32__)
27da23d5 2711# include "symbian/symbianish.h"
009819bb 2712#elif defined(__HAIKU__)
df00ff3b 2713# include "haiku/haikuish.h"
009819bb 2714#else
19848b3f 2715# include "unixish.h"
13b6e58c
JH
2716#endif
2717
2946a158
JH
2718/* NSIG logic from Configure --> */
2719/* Strange style to avoid deeply-nested #if/#else/#endif */
2720#ifndef NSIG
2721# ifdef _NSIG
2722# define NSIG (_NSIG)
2723# endif
2724#endif
2725
2726#ifndef NSIG
2727# ifdef SIGMAX
2728# define NSIG (SIGMAX+1)
2729# endif
2730#endif
2731
2732#ifndef NSIG
2733# ifdef SIG_MAX
2734# define NSIG (SIG_MAX+1)
2735# endif
2736#endif
2737
2738#ifndef NSIG
2739# ifdef _SIG_MAX
2740# define NSIG (_SIG_MAX+1)
2741# endif
2742#endif
2743
2744#ifndef NSIG
2745# ifdef MAXSIG
2746# define NSIG (MAXSIG+1)
2747# endif
2748#endif
2749
2750#ifndef NSIG
2751# ifdef MAX_SIG
2752# define NSIG (MAX_SIG+1)
2753# endif
2754#endif
2755
2756#ifndef NSIG
2757# ifdef SIGARRAYSIZE
2758# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2759# endif
2760#endif
2761
2762#ifndef NSIG
2763# ifdef _sys_nsig
2764# define NSIG (_sys_nsig) /* Solaris 2.5 */
2765# endif
2766#endif
2767
2768/* Default to some arbitrary number that's big enough to get most
2769 of the common signals.
2770*/
2771#ifndef NSIG
2772# define NSIG 50
2773#endif
2774/* <-- NSIG logic from Configure */
2775
13b6e58c
JH
2776#ifndef NO_ENVIRON_ARRAY
2777# define USE_ENVIRON_ARRAY
2778#endif
32f822de 2779
c77b533b
JH
2780/*
2781 * initialise to avoid floating-point exceptions from overflow, etc
2782 */
2783#ifndef PERL_FPU_INIT
2784# ifdef HAS_FPSETMASK
2785# if HAS_FLOATINGPOINT_H
2786# include <floatingpoint.h>
2787# endif
ad3a8c67
NC
2788/* Some operating systems have this as a macro, which in turn expands to a comma
2789 expression, and the last sub-expression is something that gets calculated,
2790 and then they have the gall to warn that a value computed is not used. Hence
2791 cast to void. */
2792# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2793# else
2f42fcb0 2794# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2795# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2796# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2797# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2798# else
2799# define PERL_FPU_INIT
2f42fcb0 2800
7014c407 2801# endif
c77b533b
JH
2802# endif
2803#endif
b35112e7
CS
2804#ifndef PERL_FPU_PRE_EXEC
2805# define PERL_FPU_PRE_EXEC {
2806# define PERL_FPU_POST_EXEC }
2807#endif
c77b533b 2808
cbec8ebe
DM
2809#ifndef PERL_SYS_INIT3_BODY
2810# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2811#endif
2812
eb533572 2813/*
dcccc8ff
KW
2814=head1 Miscellaneous Functions
2815
4ad9e498 2816=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2817Provides system-specific tune up of the C runtime environment necessary to
72d33970 2818run Perl interpreters. This should be called only once, before creating
eb533572
DM
2819any Perl interpreters.
2820
4ad9e498 2821=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2822Provides system-specific tune up of the C runtime environment necessary to
72d33970 2823run Perl interpreters. This should be called only once, before creating
eb533572
DM
2824any Perl interpreters.
2825
2826=for apidoc Am|void|PERL_SYS_TERM|
2827Provides system-specific clean up of the C runtime environment after
72d33970 2828running Perl interpreters. This should be called only once, after
eb533572
DM
2829freeing any remaining Perl interpreters.
2830
2831=cut
2832 */
2833
cbec8ebe
DM
2834#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2835#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2836#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2837
be708cc0
JH
2838#ifndef PERL_WRITE_MSG_TO_CONSOLE
2839# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2840#endif
2841
0f31cffe
GS
2842#ifndef MAXPATHLEN
2843# ifdef PATH_MAX
b990c8b2
JH
2844# ifdef _POSIX_PATH_MAX
2845# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2846/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2847 * included the null byte or not. Later amendments of POSIX,
2848 * XPG4, the Austin Group, and the Single UNIX Specification
2849 * all explicitly include the null byte in the PATH_MAX.
2850 * Ditto for _POSIX_PATH_MAX. */
2851# define MAXPATHLEN PATH_MAX
b990c8b2 2852# else
09448d78 2853# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2854# endif
2855# else
2856# define MAXPATHLEN (PATH_MAX+1)
2857# endif
0f31cffe 2858# else
d552bce8 2859# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2860# endif
2861#endif
2862
c80263a8
SH
2863/* In case Configure was not used (we are using a "canned config"
2864 * such as Win32, or a cross-compilation setup, for example) try going
2865 * by the gcc major and minor versions. One useful URL is
2866 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2867 * but contrary to this information warn_unused_result seems
2868 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2869 * Also, when building extensions with an installed perl, this allows
2870 * the user to upgrade gcc and get the right attributes, rather than
2871 * relying on the list generated at Configure time. --AD
c80263a8
SH
2872 * Set these up now otherwise we get confused when some of the <*thread.h>
2873 * includes below indirectly pull in <perlio.h> (which needs to know if we
2874 * have HASATTRIBUTE_FORMAT).
2875 */
2876
4d7c7898 2877#ifndef PERL_MICRO
fc2007d4 2878#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2879# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2880# define HASATTRIBUTE_DEPRECATED
2881# endif
c80263a8
SH
2882# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2883# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2884# if defined __MINGW32__
2885# define PRINTF_FORMAT_NULL_OK
2886# endif
c80263a8
SH
2887# endif
2888# if __GNUC__ >= 3 /* 3.0 -> */
2889# define HASATTRIBUTE_MALLOC
2890# endif
2891# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2892# define HASATTRIBUTE_NONNULL
2893# endif
2894# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2895# define HASATTRIBUTE_NORETURN
2896# endif
2897# if __GNUC__ >= 3 /* gcc 3.0 -> */
2898# define HASATTRIBUTE_PURE
2899# endif
42bf5550 2900# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
2901# define HASATTRIBUTE_UNUSED
2902# endif
d324fe49
AD
2903# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2904# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2905# endif
c80263a8
SH
2906# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2907# define HASATTRIBUTE_WARN_UNUSED_RESULT
2908# endif
2909#endif
00f254e2 2910#endif /* #ifndef PERL_MICRO */
c80263a8 2911
3db8f154 2912/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2913 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
2914 * this results in many functions being undeclared which bothers C++
2915 * May make sense to have threads after "*ish.h" anyway
2916 */
2917
3db8f154 2918#if defined(USE_ITHREADS)
2986a63f
JH
2919# ifdef NETWARE
2920# include <nw5thread.h>
2921# else
32f822de
GS
2922# ifdef WIN32
2923# include <win32thread.h>
2924# else
dd96f567
IZ
2925# ifdef OS2
2926# include "os2thread.h"
2927# else
7f3d1cf1 2928# ifdef I_MACH_CTHREADS
bdd66968 2929# include <mach/cthreads.h>
7f3d1cf1
BH
2930typedef cthread_t perl_os_thread;
2931typedef mutex_t perl_mutex;
2932typedef condition_t perl_cond;
2933typedef void * perl_key;
2934# else /* Posix threads */
1f5ae88c
JH
2935# ifdef I_PTHREAD
2936# include <pthread.h>
2937# endif
7f3d1cf1
BH
2938typedef pthread_t perl_os_thread;
2939typedef pthread_mutex_t perl_mutex;
2940typedef pthread_cond_t perl_cond;
2941typedef pthread_key_t perl_key;
2942# endif /* I_MACH_CTHREADS */
dd96f567 2943# endif /* OS2 */
32f822de 2944# endif /* WIN32 */
ef4abe76 2945# endif /* NETWARE */
3db8f154 2946#endif /* USE_ITHREADS */
c5be433b 2947
66a93824 2948#if defined(WIN32)
1feb2720 2949# include "win32.h"
c5be433b
GS
2950#endif
2951
2986a63f
JH
2952#ifdef NETWARE
2953# include "netware.h"
2954#endif
2955
e5218da5 2956#define STATUS_UNIX PL_statusvalue
68dc0745 2957#ifdef VMS
6b88bc9c 2958# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
2959/*
2960 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2961 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
2962 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2963 * be updated also.
2964 */
2965# include <stsdef.h>
2966# include <ssdef.h>
2967/* Presume this because if VMS changes it, it will require a new
2968 * set of APIs for waiting on children for binary compatibility.
2969 */
2970# define child_offset_bits (8)
2971# ifndef C_FAC_POSIX
2972# define C_FAC_POSIX 0x35A000
2973# endif
2974
2975/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2976 * platform from the existing UNIX or Native status values.
2977 */
2978
37038d91 2979# define STATUS_EXIT \
7a7fd8e0
JM
2980 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2981 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2982
7a7fd8e0 2983
fb38d079
JM
2984/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2985 * exit code and shifts the UNIX value over the correct number of bits to
2986 * be a child status. Usually the number of bits is 8, but that could be
2987 * platform dependent. The NATIVE status code is presumed to have either
2988 * from a child process.
7a7fd8e0
JM
2989 */
2990
fb38d079
JM
2991/* This is complicated. The child processes return a true native VMS
2992 status which must be saved. But there is an assumption in Perl that
2993 the UNIX child status has some relationship to errno values, so
00f254e2 2994 Perl tries to translate it to text in some of the tests.
fb38d079
JM
2995 In order to get the string translation correct, for the error, errno
2996 must be EVMSERR, but that generates a different text message
2997 than what the test programs are expecting. So an errno value must
2998 be derived from the native status value when an error occurs.
2999 That will hide the true native status message. With this version of
3000 perl, the true native child status can always be retrieved so that
3001 is not a problem. But in this case, Pl_statusvalue and errno may
3002 have different values in them.
3003 */
7a7fd8e0 3004
fb38d079 3005# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3006 STMT_START { \
2fbb330f
JM
3007 I32 evalue = (I32)n; \
3008 if (evalue == EVMSERR) { \
3009 PL_statusvalue_vms = vaxc$errno; \
3010 PL_statusvalue = evalue; \
7a7fd8e0 3011 } else { \
2fbb330f 3012 PL_statusvalue_vms = evalue; \
fb38d079 3013 if (evalue == -1) { \
3280af22 3014 PL_statusvalue = -1; \
7a7fd8e0
JM
3015 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3016 } else \
fb38d079 3017 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3018 set_vaxc_errno(evalue); \
fb38d079
JM
3019 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3020 set_errno(EVMSERR); \
3021 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3022 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3023 } \
68dc0745 3024 } STMT_END
7a7fd8e0 3025
68dc0745 3026# ifdef VMSISH_STATUS
e5218da5 3027# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3028# else
e5218da5 3029# define STATUS_CURRENT STATUS_UNIX
68dc0745 3030# endif
7a7fd8e0
JM
3031
3032 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3033 * the NATIVE status to an equivalent value. Can not be used to translate
3034 * exit code values as exit code values are not guaranteed to have any
3035 * relationship at all to errno values.
3036 * This is used when Perl is forcing errno to have a specific value.
3037 */
e5218da5 3038# define STATUS_UNIX_SET(n) \
68dc0745 3039 STMT_START { \
7a7fd8e0 3040 I32 evalue = (I32)n; \
0968cdad 3041 PL_statusvalue = evalue; \
3280af22 3042 if (PL_statusvalue != -1) { \
0968cdad
JM
3043 if (PL_statusvalue != EVMSERR) { \
3044 PL_statusvalue &= 0xFFFF; \
3045 if (MY_POSIX_EXIT) \
3046 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3047 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3048 } \
3049 else { \
3050 PL_statusvalue_vms = vaxc$errno; \
3051 } \
68dc0745 3052 } \
0968cdad
JM
3053 else PL_statusvalue_vms = SS$_ABORT; \
3054 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3055 } STMT_END
3056
3057 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3058 * the NATIVE error status based on it.
3059 *
3060 * When in the default mode to comply with the Perl VMS documentation,
3061 * 0 is a success and any other code sets the NATIVE status to a failure
3062 * code of SS$_ABORT.
fb38d079
JM
3063 *
3064 * In the new POSIX EXIT mode, native status will be set so that the
3065 * actual exit code will can be retrieved by the calling program or
3066 * shell.
3067 *
3068 * If the exit code is not clearly a UNIX parent or child exit status,
3069 * it will be passed through as a VMS status.
7a7fd8e0
JM
3070 */
3071
fb38d079 3072# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3073 STMT_START { \
3074 I32 evalue = (I32)n; \
3075 PL_statusvalue = evalue; \
e08e1e1d
JM
3076 if (MY_POSIX_EXIT) { \
3077 if (evalue <= 0xFF00) { \
3078 if (evalue > 0xFF) \
3079 evalue = (evalue >> child_offset_bits) & 0xFF; \
3080 PL_statusvalue_vms = \
3081 (C_FAC_POSIX | (evalue << 3 ) | \
3082 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3083 } else /* forgive them Perl, for they have sinned */ \
3084 PL_statusvalue_vms = evalue; \
3085 } else { \
3086 if (evalue == 0) \
3087 PL_statusvalue_vms = SS$_NORMAL; \
3088 else if (evalue <= 0xFF00) \
3089 PL_statusvalue_vms = SS$_ABORT; \
3090 else { /* forgive them Perl, for they have sinned */ \
3091 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3092 else PL_statusvalue_vms = vaxc$errno; \
3093 /* And obviously used a VMS status value instead of UNIX */ \
3094 PL_statusvalue = EVMSERR; \
3095 } \
3096 set_vaxc_errno(PL_statusvalue_vms); \
3097 } \
68dc0745 3098 } STMT_END
fb38d079 3099
e08e1e1d 3100
6ac6a52b
JM
3101 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3102 * and sets the NATIVE error status based on it. This special case
3103 * is needed to maintain compatibility with past VMS behavior.
3104 *
3105 * In the default mode on VMS, this number is passed through as
3106 * both the NATIVE and UNIX status. Which makes it different
3107 * that the STATUS_UNIX_EXIT_SET.
3108 *
3109 * In the new POSIX EXIT mode, native status will be set so that the
3110 * actual exit code will can be retrieved by the calling program or
3111 * shell.
3112 *
1a3aec58
JM
3113 * A POSIX exit code is from 0 to 255. If the exit code is higher
3114 * than this, it needs to be assumed that it is a VMS exit code and
3115 * passed through.
6ac6a52b
JM
3116 */
3117
3118# define STATUS_EXIT_SET(n) \
3119 STMT_START { \
3120 I32 evalue = (I32)n; \
3121 PL_statusvalue = evalue; \
3122 if (MY_POSIX_EXIT) \
1a3aec58
JM
3123 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3124 PL_statusvalue_vms = \
3125 (C_FAC_POSIX | (evalue << 3 ) | \
3126 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3127 else \
3128 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3129 set_vaxc_errno(PL_statusvalue_vms); \
3130 } STMT_END
3131
fb38d079
JM
3132
3133 /* This macro forces a success status */
7a7fd8e0
JM
3134# define STATUS_ALL_SUCCESS \
3135 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3136
3137 /* This macro forces a failure status */
7a7fd8e0
JM
3138# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3139 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3140 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3141
68dc0745 3142#else
e5218da5 3143# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3144# if defined(WCOREDUMP)
37038d91 3145# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3146 STMT_START { \
3147 PL_statusvalue_posix = (n); \
3148 if (PL_statusvalue_posix == -1) \
3149 PL_statusvalue = -1; \
3150 else { \
3151 PL_statusvalue = \
3152 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3153 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3154 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3155 } \
3156 } STMT_END
3157# elif defined(WIFEXITED)
37038d91 3158# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3159 STMT_START { \
3160 PL_statusvalue_posix = (n); \
3161 if (PL_statusvalue_posix == -1) \
3162 PL_statusvalue = -1; \
3163 else { \
3164 PL_statusvalue = \
3165 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3166 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3167 } \
3168 } STMT_END
3169# else
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 PL_statusvalue_posix & 0xFFFF; \
3178 } \
3179 } STMT_END
3180# endif
3181# define STATUS_UNIX_SET(n) \
68dc0745 3182 STMT_START { \
3280af22
NIS
3183 PL_statusvalue = (n); \
3184 if (PL_statusvalue != -1) \
3185 PL_statusvalue &= 0xFFFF; \
68dc0745 3186 } STMT_END
7a7fd8e0 3187# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3188# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3189# define STATUS_CURRENT STATUS_UNIX
37038d91 3190# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3191# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3192# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3193#endif
3194
cc3604b1
GS
3195/* flags in PL_exit_flags for nature of exit() */
3196#define PERL_EXIT_EXPECTED 0x01
31d77e54 3197#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3198#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3199#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3200
b79b76e0 3201#ifndef PERL_CORE
a7cb1f99 3202/* format to use for version numbers in file/directory names */
273cf8d1 3203/* XXX move to Configure? */
b79b76e0
NC
3204/* This was only ever used for the current version, and that can be done at
3205 compile time, as PERL_FS_VERSION, so should we just delete it? */
3206# ifndef PERL_FS_VER_FMT
3207# define PERL_FS_VER_FMT "%d.%d.%d"
3208# endif
3209#endif
3210
3211#ifndef PERL_FS_VERSION
3212# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3213#endif
3214
45bc9206 3215/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3216 * performance issue, so we allow people to disable it. Also, if
3217 * we are using stdio, there are broken implementations of fflush(NULL)
3218 * out there, Solaris being the most prominent.
45bc9206
GS
3219 */
3220#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3221# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3222# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3223# else
3224# ifdef FFLUSH_ALL
3225# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3226# else
c5be433b 3227# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3228# endif
66fe083f 3229# endif
45bc9206
GS
3230#endif
3231
7766f137
GS
3232#ifndef PERL_WAIT_FOR_CHILDREN
3233# define PERL_WAIT_FOR_CHILDREN NOOP
3234#endif
3235
ba869deb 3236/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3237#ifndef PERL_SET_INTERP
3238# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3239#endif
3240
3241#ifndef PERL_GET_INTERP
3242# define PERL_GET_INTERP (PL_curinterp)
3243#endif
3244
54aff467 3245#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3246# ifdef MULTIPLICITY
ba869deb 3247# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3248# endif
ba869deb
GS
3249# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3250#endif
3251
00f254e2 3252/*
8896765a 3253 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3254 All that is required is that the perl source does not
00f254e2
KW
3255 use "%-p" or "%-<number>p" or "%<number>p" formats.
3256 These formats will still work in perl code.
486ec47a 3257 See comments in sv.c for further details.
8896765a 3258
8896765a 3259 Robin Barker 2005-07-14
f46d31f2 3260
00f254e2 3261 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3262*/
8896765a
RB
3263
3264#ifndef SVf_
63ce7bf0 3265# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3266#endif
3267
8896765a 3268#ifndef SVf
104abab4 3269# define SVf "-p"
d2560b70
RB
3270#endif
3271
014ead4b 3272#ifndef SVf32
8896765a 3273# define SVf32 SVf_(32)
014ead4b
RB
3274#endif
3275
3276#ifndef SVf256
8896765a
RB
3277# define SVf256 SVf_(256)
3278#endif
3279
be2597df
MHM
3280#define SVfARG(p) ((void*)(p))
3281
20023040
FC
3282#ifndef HEKf
3283# define HEKf "2p"
3284#endif
3285
b8fa5213
FC
3286/* Not ideal, but we cannot easily include a number in an already-numeric
3287 * format sequence. */
3288#ifndef HEKf256
3289# define HEKf256 "3p"
3290#endif
3291
20023040
FC
3292#define HEKfARG(p) ((void*)(p))
3293
b17a0679
FC
3294/* Takes three arguments: is_utf8, length, str */
3295#ifndef UTF8f
61608bb7 3296# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3297#endif
3298#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3299
f46d31f2 3300#ifdef PERL_CORE
486ec47a 3301/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3302# undef UVf
3303#else
170cd9e9
NC
3304# ifndef UVf
3305# define UVf UVuf
3306# endif
d2560b70
RB
3307#endif
3308
fcdf39cf
RGS
3309#ifdef HASATTRIBUTE_DEPRECATED
3310# define __attribute__deprecated__ __attribute__((deprecated))
3311#endif
0dbb1585
AL
3312#ifdef HASATTRIBUTE_FORMAT
3313# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3314#endif
3315#ifdef HASATTRIBUTE_MALLOC
77785eea 3316# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3317#endif
0dbb1585 3318#ifdef HASATTRIBUTE_NONNULL
abb2c242 3319# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3320#endif
0dbb1585 3321#ifdef HASATTRIBUTE_NORETURN
abb2c242 3322# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3323#endif
0dbb1585 3324#ifdef HASATTRIBUTE_PURE
abb2c242 3325# define __attribute__pure__ __attribute__((pure))
f22be1b8 3326#endif
0dbb1585
AL
3327#ifdef HASATTRIBUTE_UNUSED
3328# define __attribute__unused__ __attribute__((unused))
3329#endif
3330#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3331# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3332#endif
3333
0dbb1585 3334/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3335#ifndef __attribute__deprecated__
3336# define __attribute__deprecated__
3337#endif
0dbb1585
AL
3338#ifndef __attribute__format__
3339# define __attribute__format__(x,y,z)
3340#endif
f22be1b8 3341#ifndef __attribute__malloc__
abb2c242 3342# define __attribute__malloc__
f22be1b8
JH
3343#endif
3344#ifndef __attribute__nonnull__
abb2c242 3345# define __attribute__nonnull__(a)
f22be1b8
JH
3346#endif
3347#ifndef __attribute__noreturn__
abb2c242 3348# define __attribute__noreturn__
f22be1b8
JH
3349#endif
3350#ifndef __attribute__pure__
abb2c242 3351# define __attribute__pure__
f22be1b8 3352#endif
0dbb1585
AL
3353#ifndef __attribute__unused__
3354# define __attribute__unused__
3355#endif
f22be1b8 3356#ifndef __attribute__warn_unused_result__
abb2c242
JH
3357# define __attribute__warn_unused_result__
3358#endif
3359
cd13e623
JH
3360#if defined(DEBUGGING) && defined(I_ASSERT)
3361# include <assert.h>
3362#endif
3363
0dbb1585
AL
3364/* For functions that are marked as __attribute__noreturn__, it's not
3365 appropriate to call return. In either case, include the lint directive.
3366 */
3367#ifdef HASATTRIBUTE_NORETURN
ae103e09 3368# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3369#else
ae103e09 3370# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3371#endif
3372
cdfeb707
RB
3373/* Some OS warn on NULL format to printf */
3374#ifdef PRINTF_FORMAT_NULL_OK
3375# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3376#else
00f254e2 3377# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3378#endif
3379
635aebb7 3380#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3381# define EXPECT(expr,val) __builtin_expect(expr,val)
3382#else
3383# define EXPECT(expr,val) (expr)
3384#endif
6d5abc62
NC
3385#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3386#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3387#ifdef HAS_BUILTIN_CHOOSE_EXPR
3388/* placeholder */
3389#endif
b37c2d43 3390
ae103e09
DD
3391
3392#ifndef __has_builtin
3393# define __has_builtin(x) 0 /* not a clang style compiler */
3394#endif
3395
3396/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3397 hint to a compiler about a statement of fact in a function call free
3398 expression, which allows the compiler to generate better machine code.
3399 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3400 the control path is unreachable. In a for loop, ASSUME can be used to hint
3401 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3402 intrinsic function, see its documents for more details.
3403*/
3404
3405#ifndef DEBUGGING
3406# if __has_builtin(__builtin_unreachable) \
3407 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 5) /* 4.5 -> */
3408# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3409# elif defined(_MSC_VER)
3410# define ASSUME(x) __assume(x)
3411# elif defined(__ARMCC_VERSION) /* untested */
3412# define ASSUME(x) __promise(x)
3413# else
3414/* a random compiler might define assert to its own special optimization token
3415 so pass it through to C lib as a last resort */
3416# define ASSUME(x) assert(x)
3417# endif
3418#else
3419# define ASSUME(x) assert(x)
3420#endif
3421
3422#define NOT_REACHED ASSUME(0)
3423
3fc1aec6
PP
3424/* Some unistd.h's give a prototype for pause() even though
3425 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3426 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3427*/
3428#ifdef HAS_PAUSE
3429#define Pause pause
3430#else
3431#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3432#endif
3433
3434#ifndef IOCPARM_LEN
3435# ifdef IOCPARM_MASK
61f1c44b 3436 /* on BSDish systems we're safe */
748a9306
LW
3437# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3438# else
61f1c44b 3439# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3440 /* on Linux systems we're safe; except when we're not [perl #38223] */
3441# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3442# else
748a9306 3443 /* otherwise guess at what's safe */
61f1c44b
JVD
3444# define IOCPARM_LEN(x) 256
3445# endif
748a9306 3446# endif
a0d0e21e
LW
3447#endif
3448
1761cee5 3449#if defined(__CYGWIN__)
521e0776
GS
3450/* USEMYBINMODE
3451 * This symbol, if defined, indicates that the program should
16fe6d59 3452 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3453 * that a file is in "binary" mode -- that is, that no translation
3454 * of bytes occurs on read or write operations.
3455 */
36894f0b 3456# define USEMYBINMODE /**/
77a40698 3457# include <io.h> /* for setmode() prototype */
16fe6d59 3458# define my_binmode(fp, iotype, mode) \
77a40698 3459 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3460#endif
3461
88d10794
JH
3462#ifdef __CYGWIN__
3463void init_os_extras(void);
3464#endif
3465
cea2e8a9
GS
3466#ifdef UNION_ANY_DEFINITION
3467UNION_ANY_DEFINITION;
3468#else
3469union any {
3470 void* any_ptr;
3471 I32 any_i32;
ae103e09 3472 U32 any_u32;
cea2e8a9 3473 IV any_iv;
c6bf6a65 3474 UV any_uv;
cea2e8a9 3475 long any_long;
9febdf04 3476 bool any_bool;
c76ac1ee 3477 void (*any_dptr) (void*);
acfe0abc 3478 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3479};
3480#endif
3481
acfe0abc 3482typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3483
3484#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3485#define FILTER_DATA(idx) \
3486 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3487#define FILTER_ISREADER(idx) \
3488 (PL_parser && PL_parser->rsfp_filters \
3489 && idx >= AvFILLp(PL_parser->rsfp_filters))
3490#define PERL_FILTER_EXISTS(i) \
3491 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3492 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3493
c5078cac
JH
3494#if defined(_AIX) && !defined(_AIX43)
3495#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3496/* We cannot include <crypt.h> to get the struct crypt_data
3497 * because of setkey prototype problems when threading */
3498typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3499 /* From OSF, Not needed in AIX
3500 char C[28], D[28];
3501 */
3502 char E[48];
3503 char KS[16][48];
3504 char block[66];
3505 char iobuf[16];
3506} CRYPTD;
3507#endif /* threading */
3508#endif /* AIX */
3509
e37778c2 3510#if !defined(OS2)
2c2d71f5
JH
3511# include "iperlsys.h"
3512#endif
504f80c1 3513
9c12f1e5 3514#ifdef __LIBCATAMOUNT__
00f254e2 3515#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3516#undef HAS_GROUP
3517#define FAKE_BIT_BUCKET
3518#endif
3519
d10dc2ae
JH
3520/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3521 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3522 * defined by Configure, despite their names being similar to the
3523 * other defines like USE_ITHREADS. Configure in fact knows nothing
3524 * about the randomised hashes. Therefore to enable/disable the hash
3525 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3526#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3527# define USE_HASH_SEED
504f80c1
JH
3528#endif
3529
598921a7
NC
3530/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3531 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3532 * it's not really needed.
3533 */
3534#if defined(WIN32)
3535# define YYTOKENTYPE
3536#endif
3537#include "perly.h"
3538
598921a7 3539
654eccd5
JD
3540/* macros to define bit-fields in structs. */
3541#ifndef PERL_BITFIELD8
3542# define PERL_BITFIELD8 unsigned
3543#endif
3544#ifndef PERL_BITFIELD16
3545# define PERL_BITFIELD16 unsigned
3546#endif
3547#ifndef PERL_BITFIELD32
3548# define PERL_BITFIELD32 unsigned
3549#endif
3550
79072805 3551#include "sv.h"
288b8c02 3552#include "regexp.h"
378cc40b 3553#include "util.h"
8d063cd8 3554#include "form.h"
79072805 3555#include "gv.h"
dd2155a4 3556#include "pad.h"
79072805 3557#include "cv.h"
abdd5c84 3558#include "opnames.h"
79072805 3559#include "op.h"
b3ca2e83 3560#include "hv.h"
79072805
LW
3561#include "cop.h"
3562#include "av.h"
79072805
LW
3563#include "mg.h"
3564#include "scope.h"
4438c4b7 3565#include "warnings.h"
a0ed51b3 3566#include "utf8.h"
8d063cd8 3567
0d7d409d
DM
3568/* these would be in doio.h if there was such a file */
3569#define my_stat() my_stat_flags(SV_GMAGIC)
3570#define my_lstat() my_lstat_flags(SV_GMAGIC)
3571
20f4945e 3572/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3573#undef _XPV_HEAD
3574#undef _XPVMG_HEAD
3575#undef _XPVCV_COMMON
7fae4e64
GS
3576
3577typedef struct _sublex_info SUBLEXINFO;
3578struct _sublex_info {
651b5b28
NC
3579 U8 super_state; /* lexer state to save */
3580 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3581 OP *sub_op; /* "lex_op" to use */
7cc34111 3582 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3583};
3584
199e78b7
DM
3585#include "parser.h"
3586
455ece5e 3587typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3588
2260ab51
KW
3589#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3590
3591/* These have to be predeclared, as they are used in proto.h which is #included
3592 * before their definitions in regcomp.h. */
3593
3594struct scan_data_t;
7dcac5f6
KW
3595typedef struct regnode_charclass regnode_charclass;
3596
2260ab51 3597struct regnode_charclass_class;
d1d040e5
KW
3598
3599/* A hopefully less confusing name. The sub-classes are all Posix classes only
3600 * used under /l matching */
3601typedef struct regnode_charclass_class regnode_charclass_posixl;
3602
b8f7bb16 3603typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW
3604typedef struct RExC_state_t RExC_state_t;
3605struct _reg_trie_data;
76e3520e 3606
2260ab51
KW
3607#endif
3608
5f7fde29
GS
3609struct ptr_tbl_ent {
3610 struct ptr_tbl_ent* next;
53c1dcc0 3611 const void* oldval;
5f7fde29 3612 void* newval;
d18c6117
GS
3613};
3614
5f7fde29
GS
3615struct ptr_tbl {
3616 struct ptr_tbl_ent** tbl_ary;
3617 UV tbl_max;
3618 UV tbl_items;
db93c0c4
NC
3619 struct ptr_tbl_arena *tbl_arena;
3620 struct ptr_tbl_ent *tbl_arena_next;
3621 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS
3622};
3623
fe14fcc3
LW
3624#if defined(htonl) && !defined(HAS_HTONL)
3625#define HAS_HTONL
ae986130 3626#endif
fe14fcc3
LW
3627#if defined(htons) && !defined(HAS_HTONS)
3628#define HAS_HTONS
ae986130 3629#endif
fe14fcc3
LW
3630#if defined(ntohl) && !defined(HAS_NTOHL)
3631#define HAS_NTOHL
ae986130 3632#endif
fe14fcc3
LW
3633#if defined(ntohs) && !defined(HAS_NTOHS)
3634#define HAS_NTOHS
ae986130 3635#endif
fe14fcc3 3636#ifndef HAS_HTONL
fe14fcc3
LW
3637#define HAS_HTONS
3638#define HAS_HTONL
3639#define HAS_NTOHS
3640#define HAS_NTOHL
8e2d7c44
NC
3641# if (BYTEORDER & 0xffff) == 0x4321
3642/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3643 re-order their values. However, to behave identically to the alternative
3644 implementations, they should truncate to the correct size. */
3645# define ntohl(x) ((x)&0xFFFFFFFF)
3646# define htonl(x) ntohl(x)
3647# define ntohs(x) ((x)&0xFFFF)
3648# define htons(x) ntohs(x)
e4b03fed
NC
3649# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3650
3651/* Note that we can't straight out declare our own htonl and htons because
3652 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3653 to avoid the overhead of initialising the socket subsystem, but the headers
3654 that *declare* the various functions are still seen. If we declare our own
3655 htonl etc they will clash with the declarations in the Win32 headers. */
3656
3657PERL_STATIC_INLINE U32
3658my_swap32(const U32 x) {
3659 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3660 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3661}
3662
3663PERL_STATIC_INLINE U16
3664my_swap16(const U16 x) {
3665 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3666}
3667
3668# define htonl(x) my_swap32(x)
3669# define ntohl(x) my_swap32(x)
3670# define ntohs(x) my_swap16(x)
3671# define htons(x) my_swap16(x)
8e2d7c44 3672# else
691a44df
NC
3673# error "Unsupported byteorder"
3674/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3675 the error message. Please check the value of the macro BYTEORDER, as defined
3676 in config.h. The values of BYTEORDER we expect are
3677
3678 big endian little endian
3679 32 bit 0x4321 0x1234
3680 64 bit 0x87654321 0x12345678
3681
3682 If you have a system with a different byte order, please see
3683 pod/perlhack.pod for how to submit a patch to add supporting code.
3684*/
3685# endif
a687059c
LW
3686#endif
3687
988174c1
LW
3688/*
3689 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3690 * -DWS
3691 */
5ae72479 3692#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC
3693/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3694 re-order their values. However, to behave identically to the alternative
3695 implementations, they should truncate to the correct size. */
3696# define vtohl(x) ((x)&0xFFFFFFFF)
3697# define vtohs(x) ((x)&0xFFFF)
3698# define htovl(x) vtohl(x)
3699# define htovs(x) vtohs(x)
545872c5 3700#elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW
3701# define vtohl(x) ((((x)&0xFF)<<24) \
3702 +(((x)>>24)&0xFF) \
3703 +(((x)&0x0000FF00)<<8) \
3704 +(((x)&0x00FF0000)>>8) )
3705# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3706# define htovl(x) vtohl(x)
3707# define htovs(x) vtohs(x)
545872c5
NC
3708#else
3709# error "Unsupported byteorder"
3710/* If you have need for current perl on PDP-11 or similar, and can help test
3711 that blead keeps working on a mixed-endian system, then see
3712 pod/perlhack.pod for how to submit patches to things working again. */
2a8c3029 3713#endif
988174c1 3714
3bb7c1b4
JH
3715/* *MAX Plus 1. A floating point value.
3716 Hopefully expressed in a way that dodgy floating point can't mess up.
3717 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3718 is added to it
3719 May find that some broken compiler will want the value cast to I32.
3720 [after the shift, as signed >> may not be as secure as unsigned >>]
3721*/
3722#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3723#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3724/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3725 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3726 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3727*/
3728#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3729
3bb7c1b4
JH
3730#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3731#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3732#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3733
3734/* This may look like unnecessary jumping through hoops, but converting
3735 out of range floating point values to integers *is* undefined behaviour,