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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
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6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
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11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
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33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
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37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
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40#endif
41
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42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
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45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
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51# define MULTIPLICITY
52# endif
53#endif
54
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55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
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61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
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67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
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73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
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79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
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86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
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92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
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94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
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103# define USE_REENTRANT_API
104#endif
105
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106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
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108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
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113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
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126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
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138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
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142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
143# ifndef PERLIO_FUNCS_CONST
144# define PERLIO_FUNCS_CONST /* Can't have these lying around. */
145# endif
146# else
147# define PERL_GET_VARS() PL_VarsPtr
148# endif
149# endif
150#endif
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
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161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
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172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
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181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
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184# define pTHX_5 6
185# define pTHX_6 7
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186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
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190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
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195#endif
196
76e3520e 197#define STATIC static
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198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
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209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
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224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
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230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
16c91539 234 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
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280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
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289
290
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291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
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297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
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308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
34659ad4 312# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
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319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
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321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
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330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
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342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
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366 *
367 * But sometimes you just want to ignore the return value, e.g. on
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368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
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371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
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375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
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379 */
380#ifndef PERL_UNUSED_RESULT
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381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
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388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
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399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
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406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
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408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
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411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
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421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
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423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
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426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
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431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
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439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
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441# define pTHX void
442# define pTHX_
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443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
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446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
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448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
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452# define pTHX_5 5
453# define pTHX_6 6
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454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
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458#endif
459
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460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
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464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
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466# define pTHXo pTHX
467# define pTHXo_ pTHX_
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468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
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472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
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477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
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482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
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486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH
492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS
497#endif
498
27da23d5
JH
499/* Some platforms require marking function declarations
500 * for them to be exportable. Used in perlio.h, proto.h
501 * is handled either by the makedef.pl or by defining the
502 * PERL_CALLCONV to be something special. See also the
503 * definition of XS() in XSUB.h. */
504#ifndef PERL_EXPORT_C
a0c21aa1
JH
505# ifdef __cplusplus
506# define PERL_EXPORT_C extern "C"
507# else
508# define PERL_EXPORT_C extern
509# endif
27da23d5
JH
510#endif
511#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH
512# ifdef __cplusplus
513# define PERL_XS_EXPORT_C extern "C"
514# else
515# define PERL_XS_EXPORT_C
516# endif
27da23d5
JH
517#endif
518
5b692037
JH
519#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
520# ifndef PERL_USE_GCC_BRACE_GROUPS
521# define PERL_USE_GCC_BRACE_GROUPS
522# endif
523#endif
524
728e2803
PP
525/*
526 * STMT_START { statements; } STMT_END;
527 * can be used as a single statement, as in
528 * if (x) STMT_START { ... } STMT_END; else ...
529 *
530 * Trying to select a version that gives no warnings...
531 */
532#if !(defined(STMT_START) && defined(STMT_END))
5b692037 533# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 534# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
535# define STMT_END )
536# else
728e2803
PP
537# define STMT_START do
538# define STMT_END while (0)
728e2803
PP
539# endif
540#endif
541
d6f9c181
JH
542#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
543# define BYTEORDER 0x1234
79072805
LW
544#endif
545
546/* Overall memory policy? */
547#ifndef CONSERVATIVE
548# define LIBERAL 1
549#endif
550
8ada0baa
JH
551#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
552#define ASCIIish
553#else
554#undef ASCIIish
555#endif
556
79072805
LW
557/*
558 * The following contortions are brought to you on behalf of all the
559 * standards, semi-standards, de facto standards, not-so-de-facto standards
560 * of the world, as well as all the other botches anyone ever thought of.
561 * The basic theory is that if we work hard enough here, the rest of the
562 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
563 */
ac58e20f 564
ee0007ab 565/* define this once if either system, instead of cluttering up the src */
7c458fae 566#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
567#define DOSISH 1
568#endif
569
739a0b84 570#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW
571# define STANDARD_C 1
572#endif
573
8d87852b 574#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745
PP
575# define DONT_DECLARE_STD 1
576#endif
577
352d5a3a 578#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 579# define VOL volatile
663a0e37 580#else
79072805 581# define VOL
663a0e37
LW
582#endif
583
284167a5
SM
584/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
585 * you get a perl without taint support, but doubtlessly with a lesser
586 * degree of support. Do not do so unless you know exactly what it means
587 * technically, have a good reason to do so, and know exactly how the
588 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
589 * a potential security risk due to flat out ignoring the security-relevant
590 * taint flags. This being said, a perl without taint support compiled in
591 * has marginal run-time performance benefits.
592 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
593 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
594 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
595 *
596 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 597 * voids your nonexistent warranty!
284167a5 598 */
dc6d7f5c 599#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
600# define NO_TAINT_SUPPORT 1
601#endif
602
603/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
604 * operations into no-ops for a very modest speed-up. Enable only if you
605 * know what you're doing: tests and CPAN modules' tests are bound to fail.
606 */
dc6d7f5c 607#ifdef NO_TAINT_SUPPORT
284167a5
SM
608# define TAINT NOOP
609# define TAINT_NOT NOOP
610# define TAINT_IF(c) NOOP
611# define TAINT_ENV() NOOP
612# define TAINT_PROPER(s) NOOP
613# define TAINT_set(s) NOOP
614# define TAINT_get 0
615# define TAINTING_get 0
616# define TAINTING_set(s) NOOP
617# define TAINT_WARN_get 0
618# define TAINT_WARN_set(s) NOOP
619#else
620# define TAINT (PL_tainted = TRUE)
621# define TAINT_NOT (PL_tainted = FALSE)
2439e033
SM
622# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
623# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
624# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
SM
625# define TAINT_set(s) (PL_tainted = (s))
626# define TAINT_get (PL_tainted)
627# define TAINTING_get (PL_tainting)
628# define TAINTING_set(s) (PL_tainting = (s))
629# define TAINT_WARN_get (PL_taint_warn)
630# define TAINT_WARN_set(s) (PL_taint_warn = (s))
631#endif
a687059c 632
20be6587
DM
633/* flags used internally only within pp_subst and pp_substcont */
634#ifdef PERL_CORE
635# define SUBST_TAINT_STR 1 /* string tainted */
636# define SUBST_TAINT_PAT 2 /* pattern tainted */
637# define SUBST_TAINT_REPL 4 /* replacement tainted */
638# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
639# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
640#endif
641
d460ef45 642/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
643 defines move there? If so, I could simplify this a lot. --AD 9/96.
644*/
645/* Process group stuff changed from traditional BSD to POSIX.
646 perlfunc.pod documents the traditional BSD-style syntax, so we'll
647 try to preserve that, if possible.
648*/
649#ifdef HAS_SETPGID
650# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 651#else
a6e633de
PP
652# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
653# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
654# else
655# ifdef HAS_SETPGRP2 /* DG/UX */
656# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
657# endif
658# endif
659#endif
660#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
661# define HAS_SETPGRP /* Well, effectively it does . . . */
662#endif
663
664/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
665 our life easier :-) so we'll try it.
666*/
667#ifdef HAS_GETPGID
668# define BSD_GETPGRP(pid) getpgid((pid))
669#else
670# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
671# define BSD_GETPGRP(pid) getpgrp((pid))
672# else
673# ifdef HAS_GETPGRP2 /* DG/UX */
674# define BSD_GETPGRP(pid) getpgrp2((pid))
675# endif
676# endif
677#endif
678#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
679# define HAS_GETPGRP /* Well, effectively it does . . . */
680#endif
681
d460ef45 682/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
683 have different behaviors, but perl.h used to define USE_BSDPGRP
684 (prior to 5.003_05) so some extension might depend on it.
685*/
686#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
687# ifndef USE_BSDPGRP
688# define USE_BSDPGRP
689# endif
663a0e37
LW
690#endif
691
486ec47a 692/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
693 pthread.h must be included before all other header files.
694*/
3db8f154 695#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
696# include <pthread.h>
697#endif
698
58ab9e8b 699#include <sys/types.h>
663a0e37 700
760ac839
LW
701#ifdef __cplusplus
702# ifndef I_STDARG
703# define I_STDARG 1
704# endif
705#endif
706
c7925a5e
DD
707/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
708 which is included from stdarg.h. Bad definition not present in SD 2008
709 SDK headers. wince.h is not yet included, so we cant fix this from there
710 since by then MB_CUR_MAX will be defined from stdlib.h.
711 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
712 since cewchar.h can't be included this early */
713#if defined(UNDER_CE) && (_MSC_VER < 1300)
714# define MB_CUR_MAX 1
715#endif
760ac839
LW
716#ifdef I_STDARG
717# include <stdarg.h>
718#else
719# ifdef I_VARARGS
720# include <varargs.h>
721# endif
722#endif
723
27db2737
JH
724#ifdef I_STDINT
725# include <stdint.h>
726#endif
727
fe14fcc3 728#include <ctype.h>
a0d0e21e
LW
729
730#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
731#undef METHOD
a0d0e21e
LW
732#endif
733
12ae5dfc
JH
734#ifdef PERL_MICRO
735# define NO_LOCALE
736#endif
737
4633a7c4 738#ifdef I_LOCALE
36477c24 739# include <locale.h>
4633a7c4
LW
740#endif
741
36477c24
PP
742#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
743# define USE_LOCALE
ccd65d51
KW
744# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
745 capability */
36477c24
PP
746# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
747 && defined(HAS_STRXFRM)
748# define USE_LOCALE_COLLATE
749# endif
750# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
751# define USE_LOCALE_CTYPE
752# endif
753# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
754# define USE_LOCALE_NUMERIC
755# endif
fa9b773e
KW
756# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
757# define USE_LOCALE_MESSAGES
758# endif
759# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
760# define USE_LOCALE_MONETARY
761# endif
56e45410
KW
762# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
763# define USE_LOCALE_TIME
764# endif
b385bb4d
KW
765# ifndef WIN32 /* No wrapper except on Windows */
766# define my_setlocale(a,b) setlocale(a,b)
767# endif
36477c24 768#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 769
3e669301
KW
770/* Is $^ENCODING set, or are we under the encoding pragma? */
771#define IN_ENCODING UNLIKELY(PL_encoding \
772 || (PL_lex_encoding && _get_encoding() != NULL))
47e13f24 773
fe14fcc3 774#include <setjmp.h>
79072805 775
a0d0e21e 776#ifdef I_SYS_PARAM
79072805
LW
777# ifdef PARAM_NEEDS_TYPES
778# include <sys/types.h>
779# endif
780# include <sys/param.h>
352d5a3a 781#endif
79072805 782
ce3470dc
AD
783/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
784 value something like 199306. This may be useful if no more-specific
785 feature test is available.
786*/
787#if defined(BSD)
788# ifndef BSDish
789# define BSDish
790# endif
791#endif
792
79072805 793/* Use all the "standard" definitions? */
a0d0e21e 794#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 795# include <stdlib.h>
ff68c719 796#endif
03a14243 797
3f270f98
JH
798/* If this causes problems, set i_unistd=undef in the hint file. */
799#ifdef I_UNISTD
800# include <unistd.h>
801#endif
802
de8ca8af
NT
803/* for WCOREDUMP */
804#ifdef I_SYS_WAIT
805# include <sys/wait.h>
806#endif
807
9969cdde 808#ifdef __SYMBIAN32__
27da23d5
JH
809# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
810#endif
811
21e89b5f 812#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 813EXTERN_C int syscall(int, ...);
2ef53570
JH
814#endif
815
21e89b5f 816#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 817EXTERN_C int usleep(unsigned int);
2ef53570
JH
818#endif
819
1109a392
MHM
820#ifdef PERL_CORE
821
822/* macros for correct constant construction */
823# if INTSIZE >= 2
824# define U16_CONST(x) ((U16)x##U)
825# else
826# define U16_CONST(x) ((U16)x##UL)
827# endif
828
829# if INTSIZE >= 4
830# define U32_CONST(x) ((U32)x##U)
831# else
832# define U32_CONST(x) ((U32)x##UL)
833# endif
834
835# ifdef HAS_QUAD
836# if INTSIZE >= 8
837# define U64_CONST(x) ((U64)x##U)
838# elif LONGSIZE >= 8
839# define U64_CONST(x) ((U64)x##UL)
840# elif QUADKIND == QUAD_IS_LONG_LONG
841# define U64_CONST(x) ((U64)x##ULL)
52865553
SH
842# elif QUADKIND == QUAD_IS___INT64
843# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM
844# else /* best guess we can make */
845# define U64_CONST(x) ((U64)x##UL)
846# endif
847# endif
848
849/* byte-swapping functions for big-/little-endian conversion */
850# define _swab_16_(x) ((U16)( \
851 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
852 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
853
854# define _swab_32_(x) ((U32)( \
855 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
856 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
857 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
858 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
859
860# ifdef HAS_QUAD
861# define _swab_64_(x) ((U64)( \
862 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
863 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
864 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
865 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
866 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
867 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
868 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
869 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
870# endif
871
9c17f24a
NC
872/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
873 at least on FreeBSD. YMMV, so experiment. */
874#ifndef PERL_ARENA_SIZE
875#define PERL_ARENA_SIZE 4080
876#endif
877
ccb2c8b8 878/* Maximum level of recursion */
2b9dff67
RGS
879#ifndef PERL_SUB_DEPTH_WARN
880#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
881#endif
882
1109a392
MHM
883#endif /* PERL_CORE */
884
bdf3085f
NC
885/* We no longer default to creating a new SV for GvSV.
886 Do this before embed. */
887#ifndef PERL_CREATE_GVSV
7459f06b
NC
888# ifndef PERL_DONT_CREATE_GVSV
889# define PERL_DONT_CREATE_GVSV
890# endif
bdf3085f
NC
891#endif
892
ca0c25f6
NC
893#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
894#define PERL_USES_PL_PIDSTATUS
895#endif
896
739a0b84 897#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
898#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
899#endif
900
c31fac66
GS
901#define MEM_SIZE Size_t
902
1936d2a7
NC
903/* Round all values passed to malloc up, by default to a multiple of
904 sizeof(size_t)
905*/
906#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
907#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
908#endif
909
f1200559
WH
910/* sv_grow() will expand strings by at least a certain percentage of
911 the previously *used* length to avoid excessive calls to realloc().
912 The default is 25% of the current length.
913*/
914#ifndef PERL_STRLEN_EXPAND_SHIFT
915# define PERL_STRLEN_EXPAND_SHIFT 2
916#endif
917
3800c318 918#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS
919# include <stddef.h>
920# define STRUCT_OFFSET(s,m) offsetof(s,m)
921#else
922# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF
923#endif
924
925/* ptrdiff_t is C11, so undef it under pedantic builds */
926#ifdef PERL_GCC_PEDANTIC
927# undef HAS_PTRDIFF_T
51371543
GS
928#endif
929
9969cdde 930#ifndef __SYMBIAN32__
27da23d5
JH
931# if defined(I_STRING) || defined(__cplusplus)
932# include <string.h>
933# else
934# include <strings.h>
935# endif
51371543
GS
936#endif
937
55497cff
PP
938/* This comes after <stdlib.h> so we don't try to change the standard
939 * library prototypes; we'll use our own in proto.h instead. */
03a14243 940
4633a7c4 941#ifdef MYMALLOC
86058a2d 942# ifdef PERL_POLLUTE_MALLOC
ee13e175 943# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
944# define Perl_malloc malloc
945# define Perl_calloc calloc
946# define Perl_realloc realloc
947# define Perl_mfree free
ee13e175 948# endif
86058a2d
GS
949# else
950# define EMBEDMYMALLOC /* for compatibility */
951# endif
827e134a 952
651b9576
GS
953# define safemalloc Perl_malloc
954# define safecalloc Perl_calloc
955# define saferealloc Perl_realloc
956# define safefree Perl_mfree
22f7c9c9
JH
957# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
958 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
959 code; \
960 } STMT_END
961# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
962 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
963# define panic_write2(s) write(2, s, strlen(s))
964# define CHECK_MALLOC_TAINT(newval) \
965 CHECK_MALLOC_TOO_LATE_FOR_( \
966 if (newval) { \
acfd4d8e 967 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 968 exit(1); })
22f7c9c9 969# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 970 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
971 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
972 }} STMT_END;
f2517201
GS
973#else /* MYMALLOC */
974# define safemalloc safesysmalloc
975# define safecalloc safesyscalloc
976# define saferealloc safesysrealloc
977# define safefree safesysfree
22f7c9c9
JH
978# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
979# define CHECK_MALLOC_TAINT(newval) ((void)0)
980# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 981#endif /* MYMALLOC */
4633a7c4 982
fe13d51d 983/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 984#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
985#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
986#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
987#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
988
a0d0e21e
LW
989#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
990#define strchr index
991#define strrchr rindex
992#endif
993
16d20bd9
AD
994#ifdef I_MEMORY
995# include <memory.h>
996#endif
997
fe14fcc3 998#ifdef HAS_MEMCPY
85e6fe83 999# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 1000# ifndef memcpy
20ce7b12 1001 extern char * memcpy (char*, char*, int);
ee0007ab
LW
1002# endif
1003# endif
1004#else
1005# ifndef memcpy
1006# ifdef HAS_BCOPY
1007# define memcpy(d,s,l) bcopy(s,d,l)
1008# else
1009# define memcpy(d,s,l) my_bcopy(s,d,l)
1010# endif
1011# endif
1012#endif /* HAS_MEMCPY */
fe14fcc3 1013
ee0007ab 1014#ifdef HAS_MEMSET
85e6fe83 1015# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1016# ifndef memset
20ce7b12 1017 extern char *memset (char*, int, int);
ee0007ab
LW
1018# endif
1019# endif
ee0007ab 1020#else
12ae5dfc 1021# undef memset
fc36a67e 1022# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW
1023#endif /* HAS_MEMSET */
1024
85e6fe83 1025#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1026# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
1027# define memmove(d,s,l) bcopy(s,d,l)
1028# else
2304df62 1029# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1030# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1031# else
79072805 1032# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1033# endif
352d5a3a 1034# endif
d9d8d8de 1035#endif
ee0007ab 1036
36477c24
PP
1037#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1038# undef HAS_MEMCMP
1039#endif
1040
1041#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1042# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1043# ifndef memcmp
20ce7b12 1044 extern int memcmp (char*, char*, int);
ee0007ab
LW
1045# endif
1046# endif
1047#else
1048# ifndef memcmp
ecfc5424 1049# define memcmp my_memcmp
352d5a3a 1050# endif
36477c24 1051#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1052
fc36a67e 1053#ifndef memzero
c635e13b
PP
1054# ifdef HAS_MEMSET
1055# define memzero(d,l) memset(d,0,l)
79072805 1056# else
c635e13b
PP
1057# ifdef HAS_BZERO
1058# define memzero(d,l) bzero(d,l)
79072805 1059# else
fc36a67e 1060# define memzero(d,l) my_bzero(d,l)
79072805
LW
1061# endif
1062# endif
d9d8d8de 1063#endif
378cc40b 1064
2f42fcb0 1065#ifndef PERL_MICRO
0f27ced1
JH
1066#ifndef memchr
1067# ifndef HAS_MEMCHR
1068# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1069# endif
1070#endif
2f42fcb0 1071#endif
0f27ced1 1072
36477c24
PP
1073#ifndef HAS_BCMP
1074# ifndef bcmp
1075# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1076# endif
36477c24 1077#endif /* !HAS_BCMP */
378cc40b 1078
ae986130 1079#ifdef I_NETINET_IN
79072805 1080# include <netinet/in.h>
ae986130
LW
1081#endif
1082
28e8609d
JH
1083#ifdef I_ARPA_INET
1084# include <arpa/inet.h>
1085#endif
1086
1aef975c 1087#ifdef I_SYS_STAT
84902520 1088# include <sys/stat.h>
1aef975c 1089#endif
79072805 1090
287a962e
JD
1091/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1092 This definition should ideally go into win32/win32.h, but S_IFIFO is
1093 used later here in perl.h before win32/win32.h is being included. */
1094#if !defined(S_IFIFO) && defined(_S_IFIFO)
1095# define S_IFIFO _S_IFIFO
1096#endif
1097
cc3315ba 1098/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1099 like UTekV) are broken, sometimes giving false positives. Undefine
1100 them here and let the code below set them to proper values.
1101
1102 The ghs macro stands for GreenHills Software C-1.8.5 which
1103 is the C compiler for sysV88 and the various derivatives.
1104 This header file bug is corrected in gcc-2.5.8 and later versions.
1105 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1106
cc3315ba 1107#if defined(m88k) && defined(ghs)
79072805
LW
1108# undef S_ISDIR
1109# undef S_ISCHR
1110# undef S_ISBLK
1111# undef S_ISREG
1112# undef S_ISFIFO
1113# undef S_ISLNK
ee0007ab 1114#endif
135863df 1115
663a0e37
LW
1116#ifdef I_TIME
1117# include <time.h>
ffed7fef 1118#endif
663a0e37 1119
fe14fcc3 1120#ifdef I_SYS_TIME
85e6fe83 1121# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1122# define KERNEL
1123# endif
1124# include <sys/time.h>
85e6fe83 1125# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1126# undef KERNEL
1127# endif
a687059c 1128#endif
135863df 1129
55497cff 1130#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1131# include <sys/times.h>
d9d8d8de 1132#endif
8d063cd8 1133
fe14fcc3 1134#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1135# undef HAS_STRERROR
663a0e37
LW
1136#endif
1137
1138#include <errno.h>
1e743fda 1139
acfe0abc 1140#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1141# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1142#endif
1143
da70cfc6 1144#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1145# include <sys/socket.h>
1146# if defined(USE_SOCKS) && defined(I_SOCKS)
1147# if !defined(INCLUDE_PROTOTYPES)
1148# define INCLUDE_PROTOTYPES /* for <socks.h> */
1149# define PERL_SOCKS_NEED_PROTOTYPES
1150# endif
1151# include <socks.h>
1152# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1153# undef INCLUDE_PROTOTYPES
1154# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1155# endif
d460ef45 1156# endif
1e743fda 1157# ifdef I_NETDB
2986a63f
JH
1158# ifdef NETWARE
1159# include<stdio.h>
1160# endif
1e743fda
JH
1161# include <netdb.h>
1162# endif
1163# ifndef ENOTSOCK
1164# ifdef I_NET_ERRNO
1165# include <net/errno.h>
1166# endif
1167# endif
1168#endif
1169
fa0a29af 1170/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1171 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1172 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1173#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1174# if defined(__THROW) && defined(__GLIBC__)
1175int sockatmark(int) __THROW;
1176# else
2ef53570 1177int sockatmark(int);
29820b6d 1178# endif
2ef53570
JH
1179#endif
1180
7e827271 1181#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
1182EXTERN_C int fchdir(int);
1183EXTERN_C int flock(int, int);
1184EXTERN_C int fseeko(FILE *, off_t, int);
1185EXTERN_C off_t ftello(FILE *);
1186#endif
1187
7e827271 1188#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1189EXTERN_C char *crypt(const char *, const char *);
7e827271 1190EXTERN_C char **environ;
1ccb7c8d
JH
1191#endif
1192
83a6ff2e 1193#if defined(__cplusplus)
ce3470dc 1194# if defined(BSDish)
b91fbb93 1195EXTERN_C char **environ;
83a6ff2e 1196# elif defined(__CYGWIN__)
667e2948
SP
1197EXTERN_C char *crypt(const char *, const char *);
1198#endif
83a6ff2e 1199#endif
667e2948 1200
1e743fda
JH
1201#ifdef SETERRNO
1202# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1203#endif
f86702cc
PP
1204
1205#ifdef VMS
1206# define SETERRNO(errcode,vmserrcode) \
1207 STMT_START { \
1208 set_errno(errcode); \
1209 set_vaxc_errno(vmserrcode); \
1210 } STMT_END
4ee39169
CS
1211# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1212# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1213# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1214# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1215
93189314
JH
1216# define LIB_INVARG LIB$_INVARG
1217# define RMS_DIR RMS$_DIR
1218# define RMS_FAC RMS$_FAC
1219# define RMS_FEX RMS$_FEX
1220# define RMS_FNF RMS$_FNF
1221# define RMS_IFI RMS$_IFI
1222# define RMS_ISI RMS$_ISI
1223# define RMS_PRV RMS$_PRV
1224# define SS_ACCVIO SS$_ACCVIO
1225# define SS_DEVOFFLINE SS$_DEVOFFLINE
1226# define SS_IVCHAN SS$_IVCHAN
1227# define SS_NORMAL SS$_NORMAL
8a9f18be 1228# define SS_NOPRIV SS$_NOPRIV
748a9306 1229#else
93189314
JH
1230# define LIB_INVARG 0
1231# define RMS_DIR 0
1232# define RMS_FAC 0
1233# define RMS_FEX 0
1234# define RMS_FNF 0
1235# define RMS_IFI 0
1236# define RMS_ISI 0
1237# define RMS_PRV 0
1238# define SS_ACCVIO 0
1239# define SS_DEVOFFLINE 0
1240# define SS_IVCHAN 0
1241# define SS_NORMAL 0
8a9f18be 1242# define SS_NOPRIV 0
748a9306 1243#endif
ed6116ce 1244
6ca940a9
TC
1245#ifdef WIN32
1246# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1247# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1248# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1249# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1250#endif
1251
1252#ifdef OS2
1253# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1254# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1255# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1256# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1257#endif
1258
1259#ifndef SETERRNO
1260# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1261#endif
1262
1263#ifndef dSAVEDERRNO
1264# define dSAVEDERRNO int saved_errno
1265# define dSAVE_ERRNO int saved_errno = errno
1266# define SAVE_ERRNO (saved_errno = errno)
1267# define RESTORE_ERRNO (errno = saved_errno)
1268#endif
1269
f5fa9033 1270#define ERRSV GvSVn(PL_errgv)
dfd167e9
NC
1271
1272#define CLEAR_ERRSV() STMT_START { \
1273 if (!GvSV(PL_errgv)) { \
1274 sv_setpvs(GvSV(gv_add_by_type(PL_errgv, SVt_PV)), ""); \
1275 } else if (SvREADONLY(GvSV(PL_errgv))) { \
1276 SvREFCNT_dec(GvSV(PL_errgv)); \
1277 GvSV(PL_errgv) = newSVpvs(""); \
1278 } else { \
1279 SV *const errsv = GvSV(PL_errgv); \
1280 sv_setpvs(errsv, ""); \
1281 if (SvMAGICAL(errsv)) { \
1282 mg_free(errsv); \
1283 } \
1284 SvPOK_only(errsv); \
1285 } \
1286 } STMT_END
1287
1288
414bf5ae
MHM
1289#ifdef PERL_CORE
1290# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1291# define DEFSV_set(sv) \
1292 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1293# define SAVE_DEFSV \
1294 ( \
1295 save_gp(PL_defgv, 0), \
1296 GvINTRO_off(PL_defgv), \
1297 SAVEGENERICSV(GvSV(PL_defgv)), \
1298 GvSV(PL_defgv) = NULL \
1299 )
414bf5ae
MHM
1300#else
1301# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1302# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1303# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1304#endif
38a03e6e 1305
55497cff 1306#ifndef errno
5ff3f7a4
GS
1307 extern int errno; /* ANSI allows errno to be an lvalue expr.
1308 * For example in multithreaded environments
1309 * something like this might happen:
1310 * extern int *_errno(void);
1311 * #define errno (*_errno()) */
d9d8d8de 1312#endif
663a0e37 1313
7e996671
KW
1314#define UNKNOWN_ERRNO_MSG "(unknown)"
1315
2304df62 1316#ifdef HAS_STRERROR
b3e384bf 1317# ifndef DONT_DECLARE_STD
a0d0e21e 1318# ifdef VMS
20ce7b12 1319 char *strerror (int,...);
a0d0e21e 1320# else
20ce7b12 1321 char *strerror (int);
a0d0e21e 1322# endif
b3e384bf
KW
1323# endif
1324# ifndef Strerror
1325# define Strerror strerror
1326# endif
2304df62
AD
1327#else
1328# ifdef HAS_SYS_ERRLIST
79072805
LW
1329 extern int sys_nerr;
1330 extern char *sys_errlist[];
2304df62
AD
1331# ifndef Strerror
1332# define Strerror(e) \
7e996671 1333 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1334# endif
79072805 1335# endif
35c8bce7 1336#endif
663a0e37 1337
2304df62 1338#ifdef I_SYS_IOCTL
79072805
LW
1339# ifndef _IOCTL_
1340# include <sys/ioctl.h>
1341# endif
a687059c
LW
1342#endif
1343
ee0007ab 1344#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1345# ifdef HAS_SOCKETPAIR
1346# undef HAS_SOCKETPAIR
1347# endif
2304df62
AD
1348# ifdef I_NDBM
1349# undef I_NDBM
79072805 1350# endif
a687059c
LW
1351#endif
1352
02fc2eee
NC
1353#ifndef HAS_SOCKETPAIR
1354# ifdef HAS_SOCKET
1355# define socketpair Perl_my_socketpair
1356# endif
1357#endif
1358
a687059c 1359#if INTSIZE == 2
79072805
LW
1360# define htoni htons
1361# define ntohi ntohs
a687059c 1362#else
79072805
LW
1363# define htoni htonl
1364# define ntohi ntohl
a687059c
LW
1365#endif
1366
a0d0e21e 1367/* Configure already sets Direntry_t */
35c8bce7 1368#if defined(I_DIRENT)
663a0e37 1369# include <dirent.h>
ae986130 1370#else
fe14fcc3 1371# ifdef I_SYS_NDIR
79a0689e 1372# include <sys/ndir.h>
663a0e37 1373# else
fe14fcc3 1374# ifdef I_SYS_DIR
79a0689e
LW
1375# ifdef hp9000s500
1376# include <ndir.h> /* may be wrong in the future */
1377# else
1378# include <sys/dir.h>
1379# endif
663a0e37
LW
1380# endif
1381# endif
4633a7c4 1382#endif
a687059c 1383
c623bd54
LW
1384/*
1385 * The following gobbledygook brought to you on behalf of __STDC__.
1386 * (I could just use #ifndef __STDC__, but this is more bulletproof
1387 * in the face of half-implementations.)
1388 */
1389
21e89b5f 1390#if defined(I_SYSMODE)
ca6e1c26
JH
1391#include <sys/mode.h>
1392#endif
1393
c623bd54
LW
1394#ifndef S_IFMT
1395# ifdef _S_IFMT
1396# define S_IFMT _S_IFMT
1397# else
1398# define S_IFMT 0170000
1399# endif
1400#endif
1401
1402#ifndef S_ISDIR
1403# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1404#endif
1405
1406#ifndef S_ISCHR
1407# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1408#endif
1409
1410#ifndef S_ISBLK
fe14fcc3
LW
1411# ifdef S_IFBLK
1412# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1413# else
1414# define S_ISBLK(m) (0)
1415# endif
c623bd54
LW
1416#endif
1417
1418#ifndef S_ISREG
1419# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1420#endif
1421
1422#ifndef S_ISFIFO
fe14fcc3
LW
1423# ifdef S_IFIFO
1424# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1425# else
1426# define S_ISFIFO(m) (0)
1427# endif
c623bd54
LW
1428#endif
1429
1430#ifndef S_ISLNK
1431# ifdef _S_ISLNK
1432# define S_ISLNK(m) _S_ISLNK(m)
1433# else
1434# ifdef _S_IFLNK
1435# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1436# else
1437# ifdef S_IFLNK
1438# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1439# else
1440# define S_ISLNK(m) (0)
1441# endif
1442# endif
1443# endif
1444#endif
1445
1446#ifndef S_ISSOCK
1447# ifdef _S_ISSOCK
1448# define S_ISSOCK(m) _S_ISSOCK(m)
1449# else
1450# ifdef _S_IFSOCK
1451# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1452# else
1453# ifdef S_IFSOCK
1454# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1455# else
1456# define S_ISSOCK(m) (0)
1457# endif
1458# endif
1459# endif
1460#endif
1461
1462#ifndef S_IRUSR
1463# ifdef S_IREAD
1464# define S_IRUSR S_IREAD
1465# define S_IWUSR S_IWRITE
1466# define S_IXUSR S_IEXEC
1467# else
1468# define S_IRUSR 0400
1469# define S_IWUSR 0200
1470# define S_IXUSR 0100
1471# endif
fac7cdfc 1472#endif
1473
1474#ifndef S_IRGRP
1475# ifdef S_IRUSR
1476# define S_IRGRP (S_IRUSR>>3)
1477# define S_IWGRP (S_IWUSR>>3)
1478# define S_IXGRP (S_IXUSR>>3)
1479# else
1480# define S_IRGRP 0040
1481# define S_IWGRP 0020
1482# define S_IXGRP 0010
1483# endif
1484#endif
1485
1486#ifndef S_IROTH
1487# ifdef S_IRUSR
1488# define S_IROTH (S_IRUSR>>6)
1489# define S_IWOTH (S_IWUSR>>6)
1490# define S_IXOTH (S_IXUSR>>6)
1491# else
1492# define S_IROTH 0040
1493# define S_IWOTH 0020
1494# define S_IXOTH 0010
1495# endif
c623bd54
LW
1496#endif
1497
1498#ifndef S_ISUID
1499# define S_ISUID 04000
1500#endif
1501
1502#ifndef S_ISGID
1503# define S_ISGID 02000
1504#endif
1505
ca6e1c26
JH
1506#ifndef S_IRWXU
1507# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1508#endif
ca6e1c26
JH
1509
1510#ifndef S_IRWXG
1511# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1512#endif
ca6e1c26
JH
1513
1514#ifndef S_IRWXO
1515# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1516#endif
ca6e1c26 1517
b6c36746 1518/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1519 * which would get included through <sys/file.h >, but that is 3000
1520 * lines in the future. --jhi */
1521
b6c36746 1522#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1523# define S_IREAD S_IRUSR
1524#endif
1525
b6c36746 1526#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1527# define S_IWRITE S_IWUSR
1528#endif
1529
1530#ifndef S_IEXEC
1531# define S_IEXEC S_IXUSR
1532#endif
1533
a0d0e21e 1534#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1535# define SLOPPYDIVIDE
1536#endif
1537
748a9306
LW
1538#ifdef UV
1539#undef UV
1540#endif
1541
ce582cee
NC
1542/* For the times when you want the return value of sprintf, and you want it
1543 to be the length. Can't have a thread variable passed in, because C89 has
1544 no varargs macros.
1545*/
1546#ifdef SPRINTF_RETURNS_STRLEN
1547# define my_sprintf sprintf
1548#else
1549# define my_sprintf Perl_my_sprintf
1550#endif
1551
5b692037
JH
1552/*
1553 * If we have v?snprintf() and the C99 variadic macros, we can just
1554 * use just the v?snprintf(). It is nice to try to trap the buffer
1555 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1556 * gcc statement expressions, then use the function wrappers which try
1557 * to trap the overflow. If we can use the gcc statement expressions,
1558 * we can try that even with the version that uses the C99 variadic
1559 * macros.
5b692037
JH
1560 */
1561
1208b3dd
JH
1562/* Note that we do not check against snprintf()/vsnprintf() returning
1563 * negative values because that is non-standard behaviour and we use
1564 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1565 * that should be true only if the snprintf()/vsnprintf() are true
1566 * to the standard. */
1567
e8549682
JH
1568#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
1569
a4eca1d4
JH
1570#ifdef USE_QUADMATH
1571# define my_snprintf Perl_my_snprintf
1572# define PERL_MY_SNPRINTF_GUARDED
1573#else
dfeee9b1 1574#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1575# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1576# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1577# define PERL_MY_SNPRINTF_GUARDED
5b692037 1578# else
e8549682 1579# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1580# endif
1581#else
1582# define my_snprintf Perl_my_snprintf
1208b3dd 1583# define PERL_MY_SNPRINTF_GUARDED
5b692037 1584#endif
a4eca1d4 1585#endif
5b692037 1586
a4eca1d4
JH
1587/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1588 * dies if called under USE_QUADMATH. */
dfeee9b1 1589#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1590# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1591# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1592# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1593# else
e8549682 1594# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1595# endif
1596#else
1597# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1598# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1599#endif
d9fad198 1600
e8549682
JH
1601/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1602 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1603 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1604 * completely ignore it: otherwise you cannot know whether your output
1605 * was too long.)
1606 *
1607 * int len = my_sprintf(buf, max, ...);
1608 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1609 *
1610 * The trick is that in certain platforms [a] the my_sprintf() already
1611 * contains the sanity check, while in certain platforms [b] it needs
1612 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1613 * platforms the POST_GUARD actually does nothing since the check has
1614 * already been done. Watch out for the max being the same in both calls.
1615 *
1616 * If you actually use the snprintf/vsnprintf return value already,
1617 * you assumedly are checking its validity somehow. But you can
1618 * insert the POST_GUARD() also in that case. */
1619
1620#ifndef PERL_MY_SNPRINTF_GUARDED
1621# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1622#else
1623# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1624#endif
1625
1626#ifndef PERL_MY_VSNPRINTF_GUARDED
1627# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1628#else
1629# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1630#endif
1631
a6cc4119
SP
1632#ifdef HAS_STRLCAT
1633# define my_strlcat strlcat
1634#else
1635# define my_strlcat Perl_my_strlcat
1636#endif
1637
1638#ifdef HAS_STRLCPY
1639# define my_strlcpy strlcpy
1640#else
1641# define my_strlcpy Perl_my_strlcpy
1642#endif
1643
05f13f53 1644/*
27d4fb96
PP
1645 The IV type is supposed to be long enough to hold any integral
1646 value or a pointer.
1647 --Andy Dougherty August 1996
1648*/
1649
a22e52b9
JH
1650typedef IVTYPE IV;
1651typedef UVTYPE UV;
8175356b 1652
10cc9d2a 1653#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1654# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1655# define IV_MAX INT64_MAX
1656# define IV_MIN INT64_MIN
1657# define UV_MAX UINT64_MAX
cae7ae48
JH
1658# ifndef UINT64_MIN
1659# define UINT64_MIN 0
1660# endif
5ff3f7a4
GS
1661# define UV_MIN UINT64_MIN
1662# else
1663# define IV_MAX PERL_QUAD_MAX
1664# define IV_MIN PERL_QUAD_MIN
1665# define UV_MAX PERL_UQUAD_MAX
1666# define UV_MIN PERL_UQUAD_MIN
1667# endif
cf2093f6
JH
1668# define IV_IS_QUAD
1669# define UV_IS_QUAD
79072805 1670#else
8175356b 1671# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1672# define IV_MAX INT32_MAX
1673# define IV_MIN INT32_MIN
716026f9
DL
1674# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1675# define UV_MAX UINT32_MAX
1676# else
1677# define UV_MAX 4294967295U
1678# endif
cae7ae48
JH
1679# ifndef UINT32_MIN
1680# define UINT32_MIN 0
1681# endif
5ff3f7a4
GS
1682# define UV_MIN UINT32_MIN
1683# else
1684# define IV_MAX PERL_LONG_MAX
1685# define IV_MIN PERL_LONG_MIN
1686# define UV_MAX PERL_ULONG_MAX
1687# define UV_MIN PERL_ULONG_MIN
1688# endif
8175356b 1689# if IVSIZE == 8
cf2093f6
JH
1690# define IV_IS_QUAD
1691# define UV_IS_QUAD
de1c2614
JH
1692# ifndef HAS_QUAD
1693# define HAS_QUAD
1694# endif
cf2093f6
JH
1695# else
1696# undef IV_IS_QUAD
1697# undef UV_IS_QUAD
9ea40801 1698#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1699/* We think that removing this decade-old undef this will cause too much
1700 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1701 However, we do need HAS_QUAD in the core for use by the drand48 code,
1702 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1703# undef HAS_QUAD
e25d460c 1704#endif
cf2093f6 1705# endif
79072805 1706#endif
d7d93a81 1707
6313e544
JH
1708#define Size_t_MAX (~(Size_t)0)
1709#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1710
cae7ae48 1711#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1712#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1713
28e5dec8 1714#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1715#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1716#endif
1717
d460ef45 1718/*
26bb67e2
JH
1719 * The macros INT2PTR and NUM2PTR are (despite their names)
1720 * bi-directional: they will convert int/float to or from pointers.
1721 * However the conversion to int/float are named explicitly:
1722 * PTR2IV, PTR2UV, PTR2NV.
1723 *
1724 * For int conversions we do not need two casts if pointers are
1725 * the same size as IV and UV. Otherwise we need an explicit
1726 * cast (PTRV) to avoid compiler warnings.
1727 */
56431972
RB
1728#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1729# define PTRV UV
1730# define INT2PTR(any,d) (any)(d)
1731#else
d460ef45 1732# if PTRSIZE == LONGSIZE
56431972 1733# define PTRV unsigned long
e91e3b10 1734# define PTR2ul(p) (unsigned long)(p)
42718184 1735# else
56431972 1736# define PTRV unsigned
42718184 1737# endif
e91e3b10
RB
1738#endif
1739
1740#ifndef INT2PTR
56431972 1741# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1742#endif
e91e3b10
RB
1743
1744#ifndef PTR2ul
1745# define PTR2ul(p) INT2PTR(unsigned long,p)
1746#endif
1747
56431972
RB
1748#define NUM2PTR(any,d) (any)(PTRV)(d)
1749#define PTR2IV(p) INT2PTR(IV,p)
1750#define PTR2UV(p) INT2PTR(UV,p)
1751#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1752#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1753
8141890a
JH
1754/* According to strict ANSI C89 one cannot freely cast between
1755 * data pointers and function (code) pointers. There are at least
1756 * two ways around this. One (used below) is to do two casts,
1757 * first the other pointer to an (unsigned) integer, and then
1758 * the integer to the other pointer. The other way would be
1759 * to use unions to "overlay" the pointers. For an example of
1760 * the latter technique, see union dirpu in struct xpvio in sv.h.
1761 * The only feasible use is probably temporarily storing
1762 * function pointers in a data pointer (such as a void pointer). */
1763
e91e3b10
RB
1764#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1765#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1766
65202027 1767#ifdef USE_LONG_DOUBLE
f3654d06
JH
1768# if LONG_DOUBLESIZE == DOUBLESIZE
1769# define LONG_DOUBLE_EQUALS_DOUBLE
1770# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1771# endif
1772#endif
1773
2d4389e4
JH
1774#ifdef OVR_DBL_DIG
1775/* Use an overridden DBL_DIG */
1776# ifdef DBL_DIG
1777# undef DBL_DIG
1778# endif
1779# define DBL_DIG OVR_DBL_DIG
1780#else
1781/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS
1782 default value for printing floating point numbers in Gconvert
1783 (see config.h). (It also has other uses, such as figuring out if
1784 a given precision of printing can be done with a double instead of
1785 a long double - Allen).
2d4389e4
JH
1786*/
1787#ifdef I_LIMITS
1788#include <limits.h>
1789#endif
1790#ifdef I_FLOAT
1791#include <float.h>
1792#endif
1793#ifndef HAS_DBL_DIG
1794#define DBL_DIG 15 /* A guess that works lots of places */
1795#endif
1796#endif
1797
1798#ifdef OVR_LDBL_DIG
1799/* Use an overridden LDBL_DIG */
1800# ifdef LDBL_DIG
1801# undef LDBL_DIG
1802# endif
1803# define LDBL_DIG OVR_LDBL_DIG
1804#else
1805/* The following is all to get LDBL_DIG, in order to pick a nice
1806 default value for printing floating point numbers in Gconvert.
1807 (see config.h)
1808*/
68d4903c
JH
1809# ifdef I_LIMITS
1810# include <limits.h>
1811# endif
1812# ifdef I_FLOAT
1813# include <float.h>
1814# endif
1815# ifndef HAS_LDBL_DIG
1816# if LONG_DOUBLESIZE == 10
1817# define LDBL_DIG 18 /* assume IEEE */
1818# else
1819# if LONG_DOUBLESIZE == 12
1820# define LDBL_DIG 18 /* gcc? */
1821# else
1822# if LONG_DOUBLESIZE == 16
1823# define LDBL_DIG 33 /* assume IEEE */
1824# else
1825# if LONG_DOUBLESIZE == DOUBLESIZE
1826# define LDBL_DIG DBL_DIG /* bummer */
1827# endif
1828# endif
1829# endif
1830# endif
1831# endif
2d4389e4
JH
1832#endif
1833
20f6aaab
AS
1834/*
1835 * This is for making sure we have a good DBL_MAX value, if possible,
1836 * either for usage as NV_MAX or for usage in figuring out if we can
1837 * fit a given long double into a double, if bug-fixing makes it
1838 * necessary to do so. - Allen <allens@cpan.org>
1839 */
1840
205f51d8
AS
1841#ifdef I_LIMITS
1842# include <limits.h>
20f6aaab
AS
1843#endif
1844
205f51d8
AS
1845#ifdef I_VALUES
1846# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1847# include <values.h>
1848# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1849# define DBL_MAX MAXDOUBLE
1850# endif
1851# if defined(MINDOUBLE) && !defined(DBL_MIN)
1852# define DBL_MIN MINDOUBLE
1853# endif
1854# endif
1855#endif /* defined(I_VALUES) */
1856
a22e52b9 1857typedef NVTYPE NV;
8175356b 1858
792d8dab
JH
1859#ifdef I_IEEEFP
1860# include <ieeefp.h>
1861#endif
923fc586 1862
c32c3de1
JH
1863#ifdef USING_MSVC6
1864/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1865 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1866# define NAN_COMPARE_BROKEN
1867#endif
1868#if defined(__DECC) && defined(__osf__)
1869/* Also Tru64 cc has broken NaN comparisons. */
1870# define NAN_COMPARE_BROKEN
c32c3de1
JH
1871#endif
1872
65202027 1873#ifdef USE_LONG_DOUBLE
923fc586
JH
1874# ifdef I_SUNMATH
1875# include <sunmath.h>
1876# endif
84e6cb05 1877# if defined(LDBL_DIG)
05b4a618
JH
1878# define NV_DIG LDBL_DIG
1879# ifdef LDBL_MANT_DIG
1880# define NV_MANT_DIG LDBL_MANT_DIG
1881# endif
1882# ifdef LDBL_MIN
1883# define NV_MIN LDBL_MIN
1884# endif
1885# ifdef LDBL_MAX
1886# define NV_MAX LDBL_MAX
1887# endif
1888# ifdef LDBL_MIN_EXP
1889# define NV_MIN_EXP LDBL_MIN_EXP
1890# endif
1891# ifdef LDBL_MAX_EXP
1892# define NV_MAX_EXP LDBL_MAX_EXP
1893# endif
1894# ifdef LDBL_MIN_10_EXP
1895# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1896# endif
1897# ifdef LDBL_MAX_10_EXP
1898# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1899# endif
1900# ifdef LDBL_EPSILON
1901# define NV_EPSILON LDBL_EPSILON
1902# endif
1903# ifdef LDBL_MAX
1904# define NV_MAX LDBL_MAX
20f6aaab 1905/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1906# else
05b4a618
JH
1907# ifdef HUGE_VALL
1908# define NV_MAX HUGE_VALL
f4a14a62
JH
1909# endif
1910# endif
1911# endif
84e6cb05 1912# if defined(HAS_SQRTL)
8a00eddc
JH
1913# define Perl_acos acosl
1914# define Perl_asin asinl
1915# define Perl_atan atanl
940e3d56
JH
1916# define Perl_atan2 atan2l
1917# define Perl_ceil ceill
1918# define Perl_cos cosl
8a00eddc 1919# define Perl_cosh coshl
940e3d56 1920# define Perl_exp expl
55da5e5b 1921/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1922# define Perl_floor floorl
1923# define Perl_fmod fmodl
1924# define Perl_log logl
8a00eddc 1925# define Perl_log10 log10l
940e3d56
JH
1926# define Perl_pow powl
1927# define Perl_sin sinl
8a00eddc 1928# define Perl_sinh sinhl
940e3d56 1929# define Perl_sqrt sqrtl
8a00eddc
JH
1930# define Perl_tan tanl
1931# define Perl_tanh tanhl
68d4903c 1932# endif
a3540c92 1933/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1934# ifndef Perl_modf
1935# ifdef HAS_MODFL
1936# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1937/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1938 prototype in <math.h> */
05b4a618 1939# ifndef HAS_MODFL_PROTO
a221a8a5 1940EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1941# endif
1942# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1943 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1944# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1945# endif
a3540c92 1946# endif
05b4a618
JH
1947# ifndef Perl_frexp
1948# ifdef HAS_FREXPL
1949# define Perl_frexp(x,y) frexpl(x,y)
1950# else
1951# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1952extern long double Perl_my_frexpl(long double x, int *e);
1953# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1954# endif
03476e8e 1955# endif
a3540c92 1956# endif
05b4a618
JH
1957# ifndef Perl_ldexp
1958# ifdef HAS_LDEXPL
1959# define Perl_ldexp(x, y) ldexpl(x,y)
1960# else
1961# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1962# define Perl_ldexp(x,y) scalbnl(x,y)
1963# endif
98181445
JH
1964# endif
1965# endif
38dbb4c5 1966# ifndef Perl_isnan
e4c957f4 1967# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH
1968# define Perl_isnan(x) isnanl(x)
1969# endif
1970# endif
1971# ifndef Perl_isinf
e4c957f4 1972# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1973# define Perl_isinf(x) isinfl(x)
bcd8bfa9 1974# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1975# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1976# endif
1977# endif
e38461cc
JH
1978# ifndef Perl_isfinite
1979# define Perl_isfinite(x) Perl_isfinitel(x)
1980# endif
84e6cb05
JH
1981#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1982# include <quadmath.h>
1983# define NV_DIG FLT128_DIG
1984# define NV_MANT_DIG FLT128_MANT_DIG
1985# define NV_MIN FLT128_MIN
1986# define NV_MAX FLT128_MAX
1987# define NV_MIN_EXP FLT128_MIN_EXP
1988# define NV_MAX_EXP FLT128_MAX_EXP
1989# define NV_EPSILON FLT128_EPSILON
1990# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1991# define NV_MAX_10_EXP FLT128_MAX_10_EXP
1992# define NV_INF HUGE_VALQ
1993# define NV_NAN nanq("0")
1994# define Perl_acos acosq
1995# define Perl_asin asinq
1996# define Perl_atan atanq
1997# define Perl_atan2 atan2q
1998# define Perl_ceil ceilq
1999# define Perl_cos cosq
2000# define Perl_cosh coshq
2001# define Perl_exp expq
2002/* no Perl_fabs, but there's PERL_ABS */
2003# define Perl_floor floorq
2004# define Perl_fmod fmodq
2005# define Perl_log logq
2006# define Perl_log10 log10q
2007# define Perl_pow powq
2008# define Perl_sin sinq
2009# define Perl_sinh sinhq
2010# define Perl_sqrt sqrtq
2011# define Perl_tan tanq
2012# define Perl_tanh tanhq
2013# define Perl_modf(x,y) modfq(x,y)
2014# define Perl_frexp(x,y) frexpq(x,y)
2015# define Perl_ldexp(x, y) ldexpq(x,y)
2016# define Perl_isinf(x) isinfq(x)
2017# define Perl_isnan(x) isnanq(x)
2018# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2019#else
2d4389e4 2020# define NV_DIG DBL_DIG
d6c14000
JH
2021# ifdef DBL_MANT_DIG
2022# define NV_MANT_DIG DBL_MANT_DIG
2023# endif
06fc1729
JH
2024# ifdef DBL_MIN
2025# define NV_MIN DBL_MIN
2026# endif
2027# ifdef DBL_MAX
2028# define NV_MAX DBL_MAX
2029# endif
40bca5ae
JH
2030# ifdef DBL_MIN_EXP
2031# define NV_MIN_EXP DBL_MIN_EXP
2032# endif
2033# ifdef DBL_MAX_EXP
2034# define NV_MAX_EXP DBL_MAX_EXP
2035# endif
06fc1729
JH
2036# ifdef DBL_MIN_10_EXP
2037# define NV_MIN_10_EXP DBL_MIN_10_EXP
2038# endif
2039# ifdef DBL_MAX_10_EXP
2040# define NV_MAX_10_EXP DBL_MAX_10_EXP
2041# endif
2042# ifdef DBL_EPSILON
2043# define NV_EPSILON DBL_EPSILON
2044# endif
205f51d8 2045# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH
2046# define NV_MAX DBL_MAX
2047# define NV_MIN DBL_MIN
2048# else
2049# ifdef HUGE_VAL
2050# define NV_MAX HUGE_VAL
2051# endif
2052# endif
940e3d56 2053
55da5e5b 2054/* These math interfaces are C89. */
8a00eddc
JH
2055# define Perl_acos acos
2056# define Perl_asin asin
2057# define Perl_atan atan
940e3d56
JH
2058# define Perl_atan2 atan2
2059# define Perl_ceil ceil
2060# define Perl_cos cos
8a00eddc 2061# define Perl_cosh cosh
940e3d56 2062# define Perl_exp exp
55da5e5b 2063/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2064# define Perl_floor floor
2065# define Perl_fmod fmod
2066# define Perl_log log
8a00eddc 2067# define Perl_log10 log10
940e3d56
JH
2068# define Perl_pow pow
2069# define Perl_sin sin
8a00eddc 2070# define Perl_sinh sinh
940e3d56 2071# define Perl_sqrt sqrt
8a00eddc
JH
2072# define Perl_tan tan
2073# define Perl_tanh tanh
940e3d56
JH
2074
2075# define Perl_modf(x,y) modf(x,y)
2076# define Perl_frexp(x,y) frexp(x,y)
2077# define Perl_ldexp(x,y) ldexp(x,y)
2078
1a322af2
JH
2079# ifndef Perl_isnan
2080# ifdef HAS_ISNAN
2081# define Perl_isnan(x) isnan(x)
2082# endif
2083# endif
2084# ifndef Perl_isinf
2085# if defined(HAS_ISINF)
2086# define Perl_isinf(x) isinf(x)
bcd8bfa9 2087# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2088# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2089# endif
2090# endif
2091# ifndef Perl_isfinite
2092# ifdef HAS_ISFINITE
2093# define Perl_isfinite(x) isfinite(x)
2094# elif defined(HAS_FINITE)
2095# define Perl_isfinite(x) finite(x)
2096# endif
2097# endif
758a5d79
JH
2098#endif
2099
30404d48
JH
2100/* fpclassify(): C99. It is supposed to be a macro that switches on
2101* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2102#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2103# include <math.h>
25c46df8
JH
2104# if defined(FP_INFINITE) && defined(FP_NAN)
2105# define Perl_fp_class(x) fpclassify(x)
2106# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2107# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2108# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2109# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2110# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2111# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2112/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2113 * actually not the C99 fpclassify, with its own set of return defines. */
2114# define Perl_fp_class(x) fpclassify(x)
2115# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2116# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2117# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2118# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2119# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2120# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2121# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2122# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2123# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2124# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2125# else
2126# undef Perl_fp_class /* Unknown set of defines */
2127# endif
30404d48
JH
2128#endif
2129
25c46df8
JH
2130/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2131 * are identical to the C99 fpclassify(). */
2132#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2133# include <math.h>
558f3e66
CB
2134# ifdef __VMS
2135 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2136# include <fp.h>
56610b8f
CB
2137 /* oh, and the isnormal macro has a typo in it! */
2138# undef isnormal
2139# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2140# endif
25c46df8
JH
2141# if defined(FP_INFINITE) && defined(FP_NAN)
2142# define Perl_fp_class(x) fp_classify(x)
2143# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2144# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2145# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2146# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2147# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2148# else
2149# undef Perl_fp_class /* Unknown set of defines */
2150# endif
f279e099 2151#endif
205f51d8 2152
30404d48
JH
2153/* Feel free to check with me for the SGI manpages, SGI testing,
2154 * etcetera, if you want to try getting this to work with IRIX.
2155 *
2156 * - Allen <allens@cpan.org> */
2157
2158/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2159#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2160/* Solaris and IRIX have fpclass/fpclassl, but they are using
2161 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2162 * Define some symbols also as cpp symbols so we can detect them. */
2163# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2164# define FP_PINF FP_PINF
2165# define FP_QNAN FP_QNAN
2166# endif
f279e099 2167# include <math.h>
758a5d79
JH
2168# ifdef I_IEEFP
2169# include <ieeefp.h>
2170# endif
2171# ifdef I_FP
2172# include <fp.h>
2173# endif
2174# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2175# define Perl_fp_class(x) fpclassl(x)
758a5d79 2176# else
f279e099
JH
2177# define Perl_fp_class(x) fpclass(x)
2178# endif
25c46df8 2179# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2180# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2181# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2182# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2183# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2184# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2185# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2186# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2187# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2188# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2189# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2190# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2191# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2192# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2193# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2194# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2195# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2196# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2197# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2198# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2199# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2200# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2201# else
2202# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2203# endif
758a5d79
JH
2204#endif
2205
30404d48
JH
2206/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2207#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2208# include <math.h>
2209# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2210# include <fp_class.h>
2211# endif
25c46df8
JH
2212# if defined(FP_POS_INF) && defined(FP_QNAN)
2213# ifdef __irix__ /* XXX Configure test instead */
2214# ifdef USE_LONG_DOUBLE
2215# define Perl_fp_class(x) fp_class_l(x)
2216# else
2217# define Perl_fp_class(x) fp_class_d(x)
2218# endif
f279e099 2219# else
25c46df8
JH
2220# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2221# define Perl_fp_class(x) fp_classl(x)
2222# else
2223# define Perl_fp_class(x) fp_class(x)
2224# endif
f279e099 2225# endif
25c46df8
JH
2226# if defined(FP_POS_INF) && defined(FP_QNAN)
2227# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2228# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2229# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2230# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2231# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2232# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2233# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2234# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2235# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2236# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2237# else
25c46df8 2238# undef Perl_fp_class /* Unknown set of defines */
30404d48 2239# endif
f279e099 2240# endif
30404d48
JH
2241#endif
2242
052758ae 2243/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2244#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2245# include <math.h>
25c46df8
JH
2246# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2247# ifndef _cplusplus
2248# define Perl_fp_class(x) class(x)
2249# else
2250# define Perl_fp_class(x) _class(x)
2251# endif
2252# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2253# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2254# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2255# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2256# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2257# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2258# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2259# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2260# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2261# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2262# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2263# else
2264# undef Perl_fp_class /* Unknown set of defines */
2265# endif
758a5d79 2266# endif
30404d48
JH
2267#endif
2268
2269/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH
2270#ifdef WIN32
2271# ifndef Perl_isnan
2272# define Perl_isnan(x) _isnan(x)
2273# endif
2274# ifndef Perl_isfinite
2275# define Perl_isfinite(x) _finite(x)
2276# endif
2277# ifndef Perl_fp_class_snan
25c46df8
JH
2278/* No simple way to #define Perl_fp_class because _fpclass()
2279 * returns a set of bits. */
796ea9ea
JH
2280# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2281# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2282# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2283# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2284# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2285# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2286# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2287# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2288# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2289# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2290# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2291# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2292# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2293# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2294# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2295# endif
f279e099
JH
2296#endif
2297
2298#if !defined(Perl_fp_class_inf) && \
2299 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2300# define Perl_fp_class_inf(x) \
2301 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2302#endif
2303
2304#if !defined(Perl_fp_class_nan) && \
2305 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2306# define Perl_fp_class_nan(x) \
2307 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2308#endif
2309
2310#if !defined(Perl_fp_class_zero) && \
2311 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2312# define Perl_fp_class_zero(x) \
2313 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2314#endif
2315
2316#if !defined(Perl_fp_class_norm) && \
2317 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2318# define Perl_fp_class_norm(x) \
2319 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2320#endif
2321
2322#if !defined(Perl_fp_class_denorm) && \
2323 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2324# define Perl_fp_class_denorm(x) \
2325 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2326#endif
758a5d79 2327
1a322af2
JH
2328#ifdef UNDER_CE
2329int isnan(double d);
2330#endif
2331
758a5d79 2332#ifndef Perl_isnan
1a322af2
JH
2333# ifdef Perl_fp_class_nan
2334# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2335# else
1a322af2
JH
2336# ifdef HAS_UNORDERED
2337# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2338# else
1a322af2 2339# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2340# endif
2341# endif
2342#endif
2343
1a322af2
JH
2344#ifndef Perl_isinf
2345# ifdef Perl_fp_class_inf
2346# define Perl_isinf(x) Perl_fp_class_inf(x)
2347# endif
ca6c63e1
JH
2348#endif
2349
758a5d79 2350#ifndef Perl_isfinite
25c46df8 2351# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2352# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2353# elif defined(HAS_FINITE)
c496ca58 2354# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2355# elif defined(Perl_fp_class_finite)
2356# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2357# else
c496ca58
JH
2358/* For the infinities the multiplication returns nan,
2359 * for the nan the multiplication also returns nan,
2360 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2361# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2362# endif
65202027
DS
2363#endif
2364
25c46df8
JH
2365#ifndef Perl_isinf
2366# if defined(Perl_isfinite) && defined(Perl_isnan)
2367# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2368# endif
2369#endif
2370
d3685250
JH
2371/* We need Perl_isfinitel (ends with ell) (if available) even when
2372 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2373 * needs that. */
2374#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2375/* If isfinite() is a macro and looks like we have C99,
2376 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2377# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2378# define Perl_isfinitel(x) isfinite(x)
2379# elif defined(HAS_ISFINITEL)
2380# define Perl_isfinitel(x) isfinitel(x)
2381# elif defined(HAS_FINITEL)
2382# define Perl_isfinitel(x) finitel(x)
2383# elif defined(HAS_INFL) && defined(HAS_NANL)
2384# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2385# else
99bf9e32 2386# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2387# endif
2388#endif
2389
a36244b7
JH
2390/* The default is to use Perl's own atof() implementation (in numeric.c).
2391 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2392 * it is however best to use the native implementation of atof.
2393 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2394 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2395 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2396 * you may need to be using a different function than atof! */
a36244b7
JH
2397
2398#ifndef USE_PERL_ATOF
2399# ifndef _UNICOS
2400# define USE_PERL_ATOF
2401# endif
2402#else
2403# if USE_PERL_ATOF == 0
2404# undef USE_PERL_ATOF
2405# endif
2406#endif
2407
2408#ifdef USE_PERL_ATOF
2409# define Perl_atof(s) Perl_my_atof(s)
2410# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2411#else
2412# define Perl_atof(s) (NV)atof(s)
2413# define Perl_atof2(s, n) ((n) = atof(s))
2414#endif
cf2093f6 2415
d460ef45 2416/* Previously these definitions used hardcoded figures.
760ac839
LW
2417 * It is hoped these formula are more portable, although
2418 * no data one way or another is presently known to me.
2419 * The "PERL_" names are used because these calculated constants
2420 * do not meet the ANSI requirements for LONG_MAX, etc., which
2421 * need to be constants acceptable to #if - kja
2422 * define PERL_LONG_MAX 2147483647L
2423 * define PERL_LONG_MIN (-LONG_MAX - 1)
2424 * define PERL ULONG_MAX 4294967295L
2425 */
2426
2427#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2428# include <limits.h>
760ac839 2429#endif
205f51d8 2430/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2431 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2432
99abf803
PP
2433/*
2434 * Try to figure out max and min values for the integral types. THE CORRECT
2435 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2436 * following hacks are used if neither limits.h or values.h provide them:
2437 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2438 * for types < int: (unsigned TYPE)~(unsigned)0
2439 * The argument to ~ must be unsigned so that later signed->unsigned
2440 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2441 * and it must not be smaller than int because ~ does integral promotion.
2442 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2443 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2444 * The latter is a hack which happens to work on some machines but
2445 * does *not* catch any random system, or things like integer types
2446 * with NaN if that is possible.
2447 *
2448 * All of the types are explicitly cast to prevent accidental loss of
2449 * numeric range, and in the hope that they will be less likely to confuse
2450 * over-eager optimizers.
2451 *
2452 */
27d4fb96 2453
99abf803
PP
2454#define PERL_UCHAR_MIN ((unsigned char)0)
2455
2456#ifdef UCHAR_MAX
2457# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2458#else
99abf803
PP
2459# ifdef MAXUCHAR
2460# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2461# else
99abf803 2462# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
2463# endif
2464#endif
d460ef45 2465
99abf803
PP
2466/*
2467 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2468 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2469 * depending on local options. Until Configure detects this (or at least
2470 * detects whether the "signed" keyword is available) the CHAR ranges
2471 * will not be included. UCHAR functions normally.
2472 * - kja
2473 */
27d4fb96 2474
99abf803
PP
2475#define PERL_USHORT_MIN ((unsigned short)0)
2476
2477#ifdef USHORT_MAX
2478# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2479#else
99abf803
PP
2480# ifdef MAXUSHORT
2481# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2482# else
ef2f54b0
CB
2483# ifdef USHRT_MAX
2484# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2485# else
2486# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2487# endif
27d4fb96
PP
2488# endif
2489#endif
2490
27d4fb96 2491#ifdef SHORT_MAX
99abf803 2492# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
2493#else
2494# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2495# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2496# else
ef2f54b0
CB
2497# ifdef SHRT_MAX
2498# define PERL_SHORT_MAX ((short)SHRT_MAX)
2499# else
2500# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2501# endif
27d4fb96
PP
2502# endif
2503#endif
2504
2505#ifdef SHORT_MIN
99abf803 2506# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
2507#else
2508# ifdef MINSHORT
99abf803 2509# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2510# else
ef2f54b0
CB
2511# ifdef SHRT_MIN
2512# define PERL_SHORT_MIN ((short)SHRT_MIN)
2513# else
2514# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2515# endif
27d4fb96
PP
2516# endif
2517#endif
2518
99abf803
PP
2519#ifdef UINT_MAX
2520# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2521#else
99abf803
PP
2522# ifdef MAXUINT
2523# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2524# else
99abf803 2525# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
2526# endif
2527#endif
2528
99abf803 2529#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
2530
2531#ifdef INT_MAX
99abf803 2532# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
2533#else
2534# ifdef MAXINT /* Often used in <values.h> */
99abf803 2535# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2536# else
99abf803 2537# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
2538# endif
2539#endif
2540
2541#ifdef INT_MIN
99abf803 2542# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
2543#else
2544# ifdef MININT
99abf803 2545# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
2546# else
2547# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2548# endif
2549#endif
2550
99abf803
PP
2551#ifdef ULONG_MAX
2552# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2553#else
99abf803
PP
2554# ifdef MAXULONG
2555# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2556# else
99abf803 2557# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
2558# endif
2559#endif
2560
99abf803 2561#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2562
760ac839 2563#ifdef LONG_MAX
99abf803 2564# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
2565#else
2566# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2567# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2568# else
99abf803 2569# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
2570# endif
2571#endif
2572
2573#ifdef LONG_MIN
99abf803 2574# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
2575#else
2576# ifdef MINLONG
99abf803 2577# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2578# else
27d4fb96 2579# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
2580# endif
2581#endif
2582
d7d93a81 2583#ifdef UV_IS_QUAD
99abf803 2584
99abf803 2585# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2586# define PERL_UQUAD_MIN ((UV)0)
99abf803 2587# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2588# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2589
79072805
LW
2590#endif
2591
ee0007ab 2592typedef MEM_SIZE STRLEN;
450a55e4 2593
79072805
LW
2594typedef struct op OP;
2595typedef struct cop COP;
2596typedef struct unop UNOP;
2597typedef struct binop BINOP;
2598typedef struct listop LISTOP;
2599typedef struct logop LOGOP;
79072805
LW
2600typedef struct pmop PMOP;
2601typedef struct svop SVOP;
7934575e 2602typedef struct padop PADOP;
79072805 2603typedef struct pvop PVOP;
79072805 2604typedef struct loop LOOP;
b46e009d 2605typedef struct methop METHOP;
79072805 2606
7aef8e5b 2607#ifdef PERL_CORE
8be227ab
FC
2608typedef struct opslab OPSLAB;
2609typedef struct opslot OPSLOT;
2610#endif
2611
52db365a 2612typedef struct block_hooks BHK;
1830b3d9 2613typedef struct custom_op XOP;
52db365a 2614
cd1541b2
NC
2615typedef struct interpreter PerlInterpreter;
2616
d2b3f365 2617/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2618#if defined(__sgi)
d2b3f365 2619# define STRUCT_SV perl_sv
b8d3c5db
JH
2620#else
2621# define STRUCT_SV sv
2622#endif
2623typedef struct STRUCT_SV SV;
79072805
LW
2624typedef struct av AV;
2625typedef struct hv HV;
2626typedef struct cv CV;
d2f13c59 2627typedef struct p5rx REGEXP;
79072805 2628typedef struct gp GP;
0c30d9ec 2629typedef struct gv GV;
8990e307 2630typedef struct io IO;
c09156bb 2631typedef struct context PERL_CONTEXT;
79072805
LW
2632typedef struct block BLOCK;
2633
2634typedef struct magic MAGIC;
2635typedef struct xpv XPV;
2636typedef struct xpviv XPVIV;
ff68c719 2637typedef struct xpvuv XPVUV;
79072805
LW
2638typedef struct xpvnv XPVNV;
2639typedef struct xpvmg XPVMG;
2640typedef struct xpvlv XPVLV;
d361b004 2641typedef struct xpvinvlist XINVLIST;
79072805
LW
2642typedef struct xpvav XPVAV;
2643typedef struct xpvhv XPVHV;
2644typedef struct xpvgv XPVGV;
2645typedef struct xpvcv XPVCV;
2646typedef struct xpvbm XPVBM;
2647typedef struct xpvfm XPVFM;
8990e307 2648typedef struct xpvio XPVIO;
79072805
LW
2649typedef struct mgvtbl MGVTBL;
2650typedef union any ANY;
5f7fde29
GS
2651typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2652typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2653typedef struct clone_params CLONE_PARAMS;
2654
35e035cc 2655/* a pad or name pad is currently just an AV; but that might change,
7261499d
FC
2656 * so hide the type. */
2657typedef struct padlist PADLIST;
67634234 2658typedef AV PAD;
9b7476d7 2659typedef struct padnamelist PADNAMELIST;
35e035cc 2660typedef SV PADNAME;
67634234 2661
13b0f67d
DM
2662/* enable PERL_NEW_COPY_ON_WRITE by default */
2663#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2664# define PERL_NEW_COPY_ON_WRITE
2665#endif
07d01d6e 2666
db2c6cb3
FC
2667#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2668# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2669# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2670# else
2671# define PERL_ANY_COW
2672# endif
9f351b45
DM
2673#else
2674# define PERL_SAWAMPERSAND
db2c6cb3
FC
2675#endif
2676
40653c20
FC
2677#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2678# error PERL_DEBUG_READONLY_OPS only works with ithreads
2679#endif
2680
378cc40b 2681#include "handy.h"
a0d0e21e 2682
6b8eaf93 2683#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2684# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2685# define USE_64_BIT_RAWIO /* implicit */
2686# endif
4564133c
JH
2687#endif
2688
6b8eaf93
JH
2689/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2690 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2691 * however, because operating systems like to do that themself. */
2692#ifndef FSEEKSIZE
2693# ifdef HAS_FSEEKO
2694# define FSEEKSIZE LSEEKSIZE
2695# else
2696# define FSEEKSIZE LONGSIZE
d460ef45 2697# endif
6b8eaf93
JH
2698#endif
2699
2700#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2701# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2702# define USE_64_BIT_STDIO /* implicit */
2703# endif
2704#endif
4564133c 2705
09458382 2706#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2707# ifdef HAS_OFF64_T
2708# undef Off_t
2709# define Off_t off64_t
2710# undef LSEEKSIZE
2711# define LSEEKSIZE 8
5ff3f7a4 2712# endif
d9b3e12d
JH
2713/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2714 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2715 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2716# if defined(USE_OPEN64)
2717# define open open64
5ff3f7a4 2718# endif
d9b3e12d
JH
2719# if defined(USE_LSEEK64)
2720# define lseek lseek64
6b8eaf93
JH
2721# else
2722# if defined(USE_LLSEEK)
2723# define lseek llseek
2724# endif
d9b3e12d
JH
2725# endif
2726# if defined(USE_STAT64)
2727# define stat stat64
2728# endif
2729# if defined(USE_FSTAT64)
2730# define fstat fstat64
2731# endif
2732# if defined(USE_LSTAT64)
2733# define lstat lstat64
2734# endif
2735# if defined(USE_FLOCK64)
2736# define flock flock64
2737# endif
2738# if defined(USE_LOCKF64)
2739# define lockf lockf64
2740# endif
2741# if defined(USE_FCNTL64)
2742# define fcntl fcntl64
2743# endif
2744# if defined(USE_TRUNCATE64)
2745# define truncate truncate64
2746# endif
2747# if defined(USE_FTRUNCATE64)
2748# define ftruncate ftruncate64
2749# endif
2750#endif
2751
2752#ifdef USE_64_BIT_STDIO
2753# ifdef HAS_FPOS64_T
2754# undef Fpos_t
2755# define Fpos_t fpos64_t
2756# endif
2757/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2758 * will trigger defines like the ones below. Some 64-bit environments,
2759 * however, do not. */
2760# if defined(USE_FOPEN64)
2761# define fopen fopen64
2762# endif
2763# if defined(USE_FSEEK64)
6b8eaf93 2764# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2765# endif
2766# if defined(USE_FTELL64)
6b8eaf93 2767# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2768# endif
2769# if defined(USE_FSETPOS64)
2770# define fsetpos fsetpos64
2771# endif
2772# if defined(USE_FGETPOS64)
2773# define fgetpos fgetpos64
2774# endif
2775# if defined(USE_TMPFILE64)
2776# define tmpfile tmpfile64
2777# endif
2778# if defined(USE_FREOPEN64)
2779# define freopen freopen64
5ff3f7a4
GS
2780# endif
2781#endif
2782
e37778c2 2783#if defined(OS2)
2c2d71f5
JH
2784# include "iperlsys.h"
2785#endif
2786
748a9306 2787#ifdef DOSISH
19848b3f
JH
2788# if defined(OS2)
2789# include "os2ish.h"
2790# else
2791# include "dosish.h"
2792# endif
009819bb 2793#elif defined(VMS)
748a9306 2794# include "vmsish.h"
009819bb 2795#elif defined(PLAN9)
19848b3f 2796# include "./plan9/plan9ish.h"
009819bb 2797#elif defined(__VOS__)
196918b0
PG
2798# ifdef __GNUC__
2799# include "./vos/vosish.h"
2800# else
2801# include "vos/vosish.h"
2802# endif
009819bb 2803#elif defined(__SYMBIAN32__)
27da23d5 2804# include "symbian/symbianish.h"
009819bb 2805#elif defined(__HAIKU__)
df00ff3b 2806# include "haiku/haikuish.h"
009819bb 2807#else
19848b3f 2808# include "unixish.h"
13b6e58c
JH
2809#endif
2810
2946a158
JH
2811/* NSIG logic from Configure --> */
2812/* Strange style to avoid deeply-nested #if/#else/#endif */
2813#ifndef NSIG
2814# ifdef _NSIG
2815# define NSIG (_NSIG)
2816# endif
2817#endif
2818
2819#ifndef NSIG
2820# ifdef SIGMAX
2821# define NSIG (SIGMAX+1)
2822# endif
2823#endif
2824
2825#ifndef NSIG
2826# ifdef SIG_MAX
2827# define NSIG (SIG_MAX+1)
2828# endif
2829#endif
2830
2831#ifndef NSIG
2832# ifdef _SIG_MAX
2833# define NSIG (_SIG_MAX+1)
2834# endif
2835#endif
2836
2837#ifndef NSIG
2838# ifdef MAXSIG
2839# define NSIG (MAXSIG+1)
2840# endif
2841#endif
2842
2843#ifndef NSIG
2844# ifdef MAX_SIG
2845# define NSIG (MAX_SIG+1)
2846# endif
2847#endif
2848
2849#ifndef NSIG
2850# ifdef SIGARRAYSIZE
2851# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2852# endif
2853#endif
2854
2855#ifndef NSIG
2856# ifdef _sys_nsig
2857# define NSIG (_sys_nsig) /* Solaris 2.5 */
2858# endif
2859#endif
2860
2861/* Default to some arbitrary number that's big enough to get most
2862 of the common signals.
2863*/
2864#ifndef NSIG
2865# define NSIG 50
2866#endif
2867/* <-- NSIG logic from Configure */
2868
13b6e58c
JH
2869#ifndef NO_ENVIRON_ARRAY
2870# define USE_ENVIRON_ARRAY
2871#endif
32f822de 2872
c77b533b
JH
2873/*
2874 * initialise to avoid floating-point exceptions from overflow, etc
2875 */
2876#ifndef PERL_FPU_INIT
2877# ifdef HAS_FPSETMASK
2878# if HAS_FLOATINGPOINT_H
2879# include <floatingpoint.h>
2880# endif
ad3a8c67
NC
2881/* Some operating systems have this as a macro, which in turn expands to a comma
2882 expression, and the last sub-expression is something that gets calculated,
2883 and then they have the gall to warn that a value computed is not used. Hence
2884 cast to void. */
2885# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2886# else
2f42fcb0 2887# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2888# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS
2889# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2890# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH
2891# else
2892# define PERL_FPU_INIT
2f42fcb0 2893
7014c407 2894# endif
c77b533b
JH
2895# endif
2896#endif
b35112e7
CS
2897#ifndef PERL_FPU_PRE_EXEC
2898# define PERL_FPU_PRE_EXEC {
2899# define PERL_FPU_POST_EXEC }
2900#endif
c77b533b 2901
a308b05a
JH
2902/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2903 * We need to reenable the "invalid" trap because otherwise generation
2904 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2905 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2906#ifdef __osf__
2907# include <machine/fpu.h>
2908# define PERL_SYS_FPU_INIT \
2909 STMT_START { \
2910 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2911 signal(SIGFPE, SIG_IGN); \
2912 } STMT_END
2913#endif
2914
2915#ifndef PERL_SYS_FPU_INIT
2916# define PERL_SYS_FPU_INIT NOOP
2917#endif
2918
cbec8ebe
DM
2919#ifndef PERL_SYS_INIT3_BODY
2920# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2921#endif
2922
eb533572 2923/*
dcccc8ff
KW
2924=head1 Miscellaneous Functions
2925
4ad9e498 2926=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2927Provides system-specific tune up of the C runtime environment necessary to
72d33970 2928run Perl interpreters. This should be called only once, before creating
eb533572
DM
2929any Perl interpreters.
2930
4ad9e498 2931=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2932Provides system-specific tune up of the C runtime environment necessary to
72d33970 2933run Perl interpreters. This should be called only once, before creating
eb533572
DM
2934any Perl interpreters.
2935
2936=for apidoc Am|void|PERL_SYS_TERM|
2937Provides system-specific clean up of the C runtime environment after
72d33970 2938running Perl interpreters. This should be called only once, after
eb533572
DM
2939freeing any remaining Perl interpreters.
2940
2941=cut
2942 */
2943
cbec8ebe
DM
2944#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2945#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2946#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2947
be708cc0
JH
2948#ifndef PERL_WRITE_MSG_TO_CONSOLE
2949# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2950#endif
2951
0f31cffe
GS
2952#ifndef MAXPATHLEN
2953# ifdef PATH_MAX
b990c8b2
JH
2954# ifdef _POSIX_PATH_MAX
2955# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2956/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2957 * included the null byte or not. Later amendments of POSIX,
2958 * XPG4, the Austin Group, and the Single UNIX Specification
2959 * all explicitly include the null byte in the PATH_MAX.
2960 * Ditto for _POSIX_PATH_MAX. */
2961# define MAXPATHLEN PATH_MAX
b990c8b2 2962# else
09448d78 2963# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2964# endif
2965# else
2966# define MAXPATHLEN (PATH_MAX+1)
2967# endif
0f31cffe 2968# else
d552bce8 2969# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2970# endif
2971#endif
2972
c80263a8
SH
2973/* In case Configure was not used (we are using a "canned config"
2974 * such as Win32, or a cross-compilation setup, for example) try going
2975 * by the gcc major and minor versions. One useful URL is
2976 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2977 * but contrary to this information warn_unused_result seems
2978 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2979 * Also, when building extensions with an installed perl, this allows
2980 * the user to upgrade gcc and get the right attributes, rather than
2981 * relying on the list generated at Configure time. --AD
c80263a8
SH
2982 * Set these up now otherwise we get confused when some of the <*thread.h>
2983 * includes below indirectly pull in <perlio.h> (which needs to know if we
2984 * have HASATTRIBUTE_FORMAT).
2985 */
2986
4d7c7898 2987#ifndef PERL_MICRO
fc2007d4 2988#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2989# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2990# define HASATTRIBUTE_DEPRECATED
2991# endif
c80263a8
SH
2992# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2993# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2994# if defined __MINGW32__
2995# define PRINTF_FORMAT_NULL_OK
2996# endif
c80263a8
SH
2997# endif
2998# if __GNUC__ >= 3 /* 3.0 -> */
2999# define HASATTRIBUTE_MALLOC
3000# endif
3001# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3002# define HASATTRIBUTE_NONNULL
3003# endif
3004# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3005# define HASATTRIBUTE_NORETURN
3006# endif
3007# if __GNUC__ >= 3 /* gcc 3.0 -> */
3008# define HASATTRIBUTE_PURE
3009# endif
42bf5550 3010# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
3011# define HASATTRIBUTE_UNUSED
3012# endif
d324fe49
AD
3013# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3014# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3015# endif
c80263a8
SH
3016# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3017# define HASATTRIBUTE_WARN_UNUSED_RESULT
3018# endif
3019#endif
00f254e2 3020#endif /* #ifndef PERL_MICRO */
c80263a8 3021
3db8f154 3022/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3023 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
3024 * this results in many functions being undeclared which bothers C++
3025 * May make sense to have threads after "*ish.h" anyway
3026 */
3027
3db8f154 3028#if defined(USE_ITHREADS)
2986a63f
JH
3029# ifdef NETWARE
3030# include <nw5thread.h>
3031# else
32f822de
GS
3032# ifdef WIN32
3033# include <win32thread.h>
3034# else
dd96f567
IZ
3035# ifdef OS2
3036# include "os2thread.h"
3037# else
7f3d1cf1 3038# ifdef I_MACH_CTHREADS
bdd66968 3039# include <mach/cthreads.h>
7f3d1cf1
BH
3040typedef cthread_t perl_os_thread;
3041typedef mutex_t perl_mutex;
3042typedef condition_t perl_cond;
3043typedef void * perl_key;
3044# else /* Posix threads */
1f5ae88c
JH
3045# ifdef I_PTHREAD
3046# include <pthread.h>
3047# endif
7f3d1cf1
BH
3048typedef pthread_t perl_os_thread;
3049typedef pthread_mutex_t perl_mutex;
3050typedef pthread_cond_t perl_cond;
3051typedef pthread_key_t perl_key;
3052# endif /* I_MACH_CTHREADS */
dd96f567 3053# endif /* OS2 */
32f822de 3054# endif /* WIN32 */
ef4abe76 3055# endif /* NETWARE */
3db8f154 3056#endif /* USE_ITHREADS */
c5be433b 3057
66a93824 3058#if defined(WIN32)
1feb2720 3059# include "win32.h"
c5be433b
GS
3060#endif
3061
2986a63f
JH
3062#ifdef NETWARE
3063# include "netware.h"
3064#endif
3065
e5218da5 3066#define STATUS_UNIX PL_statusvalue
68dc0745 3067#ifdef VMS
6b88bc9c 3068# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3069/*
3070 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3071 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3072 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3073 * be updated also.
3074 */
3075# include <stsdef.h>
3076# include <ssdef.h>
3077/* Presume this because if VMS changes it, it will require a new
3078 * set of APIs for waiting on children for binary compatibility.
3079 */
3080# define child_offset_bits (8)
3081# ifndef C_FAC_POSIX
3082# define C_FAC_POSIX 0x35A000
3083# endif
3084
3085/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3086 * platform from the existing UNIX or Native status values.
3087 */
3088
37038d91 3089# define STATUS_EXIT \
7a7fd8e0
JM
3090 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3091 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3092
7a7fd8e0 3093
fb38d079
JM
3094/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3095 * exit code and shifts the UNIX value over the correct number of bits to
3096 * be a child status. Usually the number of bits is 8, but that could be
3097 * platform dependent. The NATIVE status code is presumed to have either
3098 * from a child process.
7a7fd8e0
JM
3099 */
3100
fb38d079
JM
3101/* This is complicated. The child processes return a true native VMS
3102 status which must be saved. But there is an assumption in Perl that
3103 the UNIX child status has some relationship to errno values, so
00f254e2 3104 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3105 In order to get the string translation correct, for the error, errno
3106 must be EVMSERR, but that generates a different text message
3107 than what the test programs are expecting. So an errno value must
3108 be derived from the native status value when an error occurs.
3109 That will hide the true native status message. With this version of
3110 perl, the true native child status can always be retrieved so that
3111 is not a problem. But in this case, Pl_statusvalue and errno may
3112 have different values in them.
3113 */
7a7fd8e0 3114
fb38d079 3115# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3116 STMT_START { \
2fbb330f
JM
3117 I32 evalue = (I32)n; \
3118 if (evalue == EVMSERR) { \
3119 PL_statusvalue_vms = vaxc$errno; \
3120 PL_statusvalue = evalue; \
7a7fd8e0 3121 } else { \
2fbb330f 3122 PL_statusvalue_vms = evalue; \
fb38d079 3123 if (evalue == -1) { \
3280af22 3124 PL_statusvalue = -1; \
7a7fd8e0
JM
3125 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3126 } else \
fb38d079 3127 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3128 set_vaxc_errno(evalue); \
fb38d079
JM
3129 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3130 set_errno(EVMSERR); \
3131 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3132 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3133 } \
68dc0745 3134 } STMT_END
7a7fd8e0 3135
68dc0745 3136# ifdef VMSISH_STATUS
e5218da5 3137# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3138# else
e5218da5 3139# define STATUS_CURRENT STATUS_UNIX
68dc0745 3140# endif
7a7fd8e0
JM
3141
3142 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3143 * the NATIVE status to an equivalent value. Can not be used to translate
3144 * exit code values as exit code values are not guaranteed to have any
3145 * relationship at all to errno values.
3146 * This is used when Perl is forcing errno to have a specific value.
3147 */
e5218da5 3148# define STATUS_UNIX_SET(n) \
68dc0745 3149 STMT_START { \
7a7fd8e0 3150 I32 evalue = (I32)n; \
0968cdad 3151 PL_statusvalue = evalue; \
3280af22 3152 if (PL_statusvalue != -1) { \
0968cdad
JM
3153 if (PL_statusvalue != EVMSERR) { \
3154 PL_statusvalue &= 0xFFFF; \
3155 if (MY_POSIX_EXIT) \
3156 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3157 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3158 } \
3159 else { \
3160 PL_statusvalue_vms = vaxc$errno; \
3161 } \
68dc0745 3162 } \
0968cdad
JM
3163 else PL_statusvalue_vms = SS$_ABORT; \
3164 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3165 } STMT_END
3166
3167 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3168 * the NATIVE error status based on it.
3169 *
3170 * When in the default mode to comply with the Perl VMS documentation,
3171 * 0 is a success and any other code sets the NATIVE status to a failure
3172 * code of SS$_ABORT.
fb38d079
JM
3173 *
3174 * In the new POSIX EXIT mode, native status will be set so that the
3175 * actual exit code will can be retrieved by the calling program or
3176 * shell.
3177 *
3178 * If the exit code is not clearly a UNIX parent or child exit status,
3179 * it will be passed through as a VMS status.
7a7fd8e0
JM
3180 */
3181
fb38d079 3182# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3183 STMT_START { \
3184 I32 evalue = (I32)n; \
3185 PL_statusvalue = evalue; \
e08e1e1d
JM
3186 if (MY_POSIX_EXIT) { \
3187 if (evalue <= 0xFF00) { \
3188 if (evalue > 0xFF) \
3189 evalue = (evalue >> child_offset_bits) & 0xFF; \
3190 PL_statusvalue_vms = \
3191 (C_FAC_POSIX | (evalue << 3 ) | \
3192 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3193 } else /* forgive them Perl, for they have sinned */ \
3194 PL_statusvalue_vms = evalue; \
3195 } else { \
3196 if (evalue == 0) \
3197 PL_statusvalue_vms = SS$_NORMAL; \
3198 else if (evalue <= 0xFF00) \
3199 PL_statusvalue_vms = SS$_ABORT; \
3200 else { /* forgive them Perl, for they have sinned */ \
3201 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3202 else PL_statusvalue_vms = vaxc$errno; \
3203 /* And obviously used a VMS status value instead of UNIX */ \
3204 PL_statusvalue = EVMSERR; \
3205 } \
3206 set_vaxc_errno(PL_statusvalue_vms); \
3207 } \
68dc0745 3208 } STMT_END
fb38d079 3209
e08e1e1d 3210
6ac6a52b
JM
3211 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3212 * and sets the NATIVE error status based on it. This special case
3213 * is needed to maintain compatibility with past VMS behavior.
3214 *
3215 * In the default mode on VMS, this number is passed through as
3216 * both the NATIVE and UNIX status. Which makes it different
3217 * that the STATUS_UNIX_EXIT_SET.
3218 *
3219 * In the new POSIX EXIT mode, native status will be set so that the
3220 * actual exit code will can be retrieved by the calling program or
3221 * shell.
3222 *
1a3aec58
JM
3223 * A POSIX exit code is from 0 to 255. If the exit code is higher
3224 * than this, it needs to be assumed that it is a VMS exit code and
3225 * passed through.
6ac6a52b
JM
3226 */
3227
3228# define STATUS_EXIT_SET(n) \
3229 STMT_START { \
3230 I32 evalue = (I32)n; \
3231 PL_statusvalue = evalue; \
3232 if (MY_POSIX_EXIT) \
1a3aec58
JM
3233 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3234 PL_statusvalue_vms = \
3235 (C_FAC_POSIX | (evalue << 3 ) | \
3236 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3237 else \
3238 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3239 set_vaxc_errno(PL_statusvalue_vms); \
3240 } STMT_END
3241
fb38d079
JM
3242
3243 /* This macro forces a success status */
7a7fd8e0
JM
3244# define STATUS_ALL_SUCCESS \
3245 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3246
3247 /* This macro forces a failure status */
7a7fd8e0
JM
3248# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3249 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3250 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3251
68dc0745 3252#else
e5218da5 3253# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3254# if defined(WCOREDUMP)
37038d91 3255# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3256 STMT_START { \
3257 PL_statusvalue_posix = (n); \
3258 if (PL_statusvalue_posix == -1) \
3259 PL_statusvalue = -1; \
3260 else { \
3261 PL_statusvalue = \
3262 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3263 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3264 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3265 } \
3266 } STMT_END
3267# elif defined(WIFEXITED)
37038d91 3268# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3269 STMT_START { \
3270 PL_statusvalue_posix = (n); \
3271 if (PL_statusvalue_posix == -1) \
3272 PL_statusvalue = -1; \
3273 else { \
3274 PL_statusvalue = \
3275 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3276 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3277 } \
3278 } STMT_END
3279# else
37038d91 3280# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3281 STMT_START { \
3282 PL_statusvalue_posix = (n); \
3283 if (PL_statusvalue_posix == -1) \
3284 PL_statusvalue = -1; \
3285 else { \
3286 PL_statusvalue = \
3287 PL_statusvalue_posix & 0xFFFF; \
3288 } \
3289 } STMT_END
3290# endif
3291# define STATUS_UNIX_SET(n) \
68dc0745 3292 STMT_START { \
3280af22
NIS
3293 PL_statusvalue = (n); \
3294 if (PL_statusvalue != -1) \
3295 PL_statusvalue &= 0xFFFF; \
68dc0745 3296 } STMT_END
7a7fd8e0 3297# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3298# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3299# define STATUS_CURRENT STATUS_UNIX
37038d91 3300# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3301# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3302# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3303#endif
3304
cc3604b1
GS
3305/* flags in PL_exit_flags for nature of exit() */
3306#define PERL_EXIT_EXPECTED 0x01
31d77e54 3307#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3308#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3309#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3310
b79b76e0 3311#ifndef PERL_CORE
a7cb1f99 3312/* format to use for version numbers in file/directory names */
273cf8d1 3313/* XXX move to Configure? */
b79b76e0
NC
3314/* This was only ever used for the current version, and that can be done at
3315 compile time, as PERL_FS_VERSION, so should we just delete it? */
3316# ifndef PERL_FS_VER_FMT
3317# define PERL_FS_VER_FMT "%d.%d.%d"
3318# endif
3319#endif
3320
3321#ifndef PERL_FS_VERSION
3322# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3323#endif
3324
45bc9206 3325/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3326 * performance issue, so we allow people to disable it. Also, if
3327 * we are using stdio, there are broken implementations of fflush(NULL)
3328 * out there, Solaris being the most prominent.
45bc9206
GS
3329 */
3330#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3331# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3332# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH
3333# else
3334# ifdef FFLUSH_ALL
3335# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3336# else
c5be433b 3337# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3338# endif
66fe083f 3339# endif
45bc9206
GS
3340#endif
3341
7766f137
GS
3342#ifndef PERL_WAIT_FOR_CHILDREN
3343# define PERL_WAIT_FOR_CHILDREN NOOP
3344#endif
3345
ba869deb 3346/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3347#ifndef PERL_SET_INTERP
3348# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3349#endif
3350
3351#ifndef PERL_GET_INTERP
3352# define PERL_GET_INTERP (PL_curinterp)
3353#endif
3354
54aff467 3355#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3356# ifdef MULTIPLICITY
ba869deb 3357# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3358# endif
ba869deb
GS
3359# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3360#endif
3361
00f254e2 3362/*
8896765a 3363 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3364 All that is required is that the perl source does not
00f254e2
KW
3365 use "%-p" or "%-<number>p" or "%<number>p" formats.
3366 These formats will still work in perl code.
486ec47a 3367 See comments in sv.c for further details.
8896765a 3368
8896765a 3369 Robin Barker 2005-07-14
f46d31f2 3370
00f254e2 3371 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3372*/
8896765a
RB
3373
3374#ifndef SVf_
63ce7bf0 3375# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3376#endif
3377
8896765a 3378#ifndef SVf
104abab4 3379# define SVf "-p"
d2560b70
RB
3380#endif
3381
014ead4b 3382#ifndef SVf32
8896765a 3383# define SVf32 SVf_(32)
014ead4b
RB
3384#endif
3385
3386#ifndef SVf256
8896765a
RB
3387# define SVf256 SVf_(256)
3388#endif
3389
be2597df
MHM
3390#define SVfARG(p) ((void*)(p))
3391
20023040
FC
3392#ifndef HEKf
3393# define HEKf "2p"
3394#endif
3395
b8fa5213
FC
3396/* Not ideal, but we cannot easily include a number in an already-numeric
3397 * format sequence. */
3398#ifndef HEKf256
3399# define HEKf256 "3p"
3400#endif
3401
20023040
FC
3402#define HEKfARG(p) ((void*)(p))
3403
b17a0679
FC
3404/* Takes three arguments: is_utf8, length, str */
3405#ifndef UTF8f
61608bb7 3406# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3407#endif
3408#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3409
0d1e9135
FC
3410#define PNf SVf
3411#define PNfARG SVfARG
3412
f46d31f2 3413#ifdef PERL_CORE
486ec47a 3414/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB
3415# undef UVf
3416#else
170cd9e9
NC
3417# ifndef UVf
3418# define UVf UVuf
3419# endif
d2560b70
RB
3420#endif
3421
fcdf39cf
RGS
3422#ifdef HASATTRIBUTE_DEPRECATED
3423# define __attribute__deprecated__ __attribute__((deprecated))
3424#endif
0dbb1585
AL
3425#ifdef HASATTRIBUTE_FORMAT
3426# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3427#endif
3428#ifdef HASATTRIBUTE_MALLOC
77785eea 3429# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3430#endif
0dbb1585 3431#ifdef HASATTRIBUTE_NONNULL
abb2c242 3432# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3433#endif
0dbb1585 3434#ifdef HASATTRIBUTE_NORETURN
abb2c242 3435# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3436#endif
0dbb1585 3437#ifdef HASATTRIBUTE_PURE
abb2c242 3438# define __attribute__pure__ __attribute__((pure))
f22be1b8 3439#endif
0dbb1585
AL
3440#ifdef HASATTRIBUTE_UNUSED
3441# define __attribute__unused__ __attribute__((unused))
3442#endif
3443#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3444# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3445#endif
3446
0dbb1585 3447/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3448#ifndef __attribute__deprecated__
3449# define __attribute__deprecated__
3450#endif
0dbb1585
AL
3451#ifndef __attribute__format__
3452# define __attribute__format__(x,y,z)
3453#endif
f22be1b8 3454#ifndef __attribute__malloc__
abb2c242 3455# define __attribute__malloc__
f22be1b8
JH
3456#endif
3457#ifndef __attribute__nonnull__
abb2c242 3458# define __attribute__nonnull__(a)
f22be1b8
JH
3459#endif
3460#ifndef __attribute__noreturn__
abb2c242 3461# define __attribute__noreturn__
f22be1b8
JH
3462#endif
3463#ifndef __attribute__pure__
abb2c242 3464# define __attribute__pure__
f22be1b8 3465#endif
0dbb1585
AL
3466#ifndef __attribute__unused__
3467# define __attribute__unused__
3468#endif
f22be1b8 3469#ifndef __attribute__warn_unused_result__
abb2c242
JH
3470# define __attribute__warn_unused_result__
3471#endif
3472
6d59e610
LM
3473#ifdef I_ASSERT
3474# if !defined(DEBUGGING) && !defined(NDEBUG)
3475# define NDEBUG 1
3476# endif
cd13e623
JH
3477# include <assert.h>
3478#endif
3479
0dbb1585
AL
3480/* For functions that are marked as __attribute__noreturn__, it's not
3481 appropriate to call return. In either case, include the lint directive.
3482 */
3483#ifdef HASATTRIBUTE_NORETURN
ae103e09 3484# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3485#else
ae103e09 3486# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH
3487#endif
3488
cdfeb707
RB
3489/* Some OS warn on NULL format to printf */
3490#ifdef PRINTF_FORMAT_NULL_OK
3491# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3492#else
00f254e2 3493# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3494#endif
3495
635aebb7 3496#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3497# define EXPECT(expr,val) __builtin_expect(expr,val)
3498#else
3499# define EXPECT(expr,val) (expr)
3500#endif
6d5abc62
NC
3501#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3502#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3503#ifdef HAS_BUILTIN_CHOOSE_EXPR
3504/* placeholder */
3505#endif
b37c2d43 3506
6d59e610
LM
3507#if defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)
3508/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3509 builtin in C++11.
3510*/
3511# define STATIC_ASSERT_GLOBAL(COND) static_assert(COND, #COND)
3512#else
3513/* We use a bit-field instead of an array because gcc accepts
3514 'typedef char x[n]' where n is not a compile-time constant.
3515 We want to enforce constantness.
3516*/
3517# define STATIC_ASSERT_2(COND, SUFFIX) \
3518 typedef struct { \
3519 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3520 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3521# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3522# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3523#endif
3524/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3525 error (static_assert is a declaration, and only statements can have labels).
3526*/
3527#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD
3528
3529#ifndef __has_builtin
3530# define __has_builtin(x) 0 /* not a clang style compiler */
3531#endif
3532
3533/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3534 hint to a compiler about a statement of fact in a function call free
3535 expression, which allows the compiler to generate better machine code.
3536 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3537 the control path is unreachable. In a for loop, ASSUME can be used to hint
3538 that a loop will run atleast X times. ASSUME is based off MSVC's __assume
3539 intrinsic function, see its documents for more details.
3540*/
3541
3542#ifndef DEBUGGING
3543# if __has_builtin(__builtin_unreachable) \
d1020b40 3544 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD
3545# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3546# elif defined(_MSC_VER)
3547# define ASSUME(x) __assume(x)
3548# elif defined(__ARMCC_VERSION) /* untested */
3549# define ASSUME(x) __promise(x)
3550# else
3551/* a random compiler might define assert to its own special optimization token
3552 so pass it through to C lib as a last resort */
3553# define ASSUME(x) assert(x)
3554# endif
3555#else
3556# define ASSUME(x) assert(x)
3557#endif
3558
3559#define NOT_REACHED ASSUME(0)
3560
3fc1aec6
PP
3561/* Some unistd.h's give a prototype for pause() even though
3562 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3563 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3564*/
3565#ifdef HAS_PAUSE
3566#define Pause pause
3567#else
3568#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3569#endif
3570
3571#ifndef IOCPARM_LEN
3572# ifdef IOCPARM_MASK
61f1c44b 3573 /* on BSDish systems we're safe */
748a9306
LW
3574# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3575# else
61f1c44b 3576# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA
3577 /* on Linux systems we're safe; except when we're not [perl #38223] */
3578# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3579# else
748a9306 3580 /* otherwise guess at what's safe */
61f1c44b
JVD
3581# define IOCPARM_LEN(x) 256
3582# endif
748a9306 3583# endif
a0d0e21e
LW
3584#endif
3585
1761cee5 3586#if defined(__CYGWIN__)
521e0776
GS
3587/* USEMYBINMODE
3588 * This symbol, if defined, indicates that the program should
16fe6d59 3589 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3590 * that a file is in "binary" mode -- that is, that no translation
3591 * of bytes occurs on read or write operations.
3592 */
36894f0b 3593# define USEMYBINMODE /**/
77a40698 3594# include <io.h> /* for setmode() prototype */
16fe6d59 3595# define my_binmode(fp, iotype, mode) \
77a40698 3596 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6
PP
3597#endif
3598
88d10794
JH
3599#ifdef __CYGWIN__
3600void init_os_extras(void);
3601#endif
3602
cea2e8a9
GS
3603#ifdef UNION_ANY_DEFINITION
3604UNION_ANY_DEFINITION;
3605#else
3606union any {
3607 void* any_ptr;
3608 I32 any_i32;
ae103e09 3609 U32 any_u32;
cea2e8a9 3610 IV any_iv;
c6bf6a65 3611 UV any_uv;
cea2e8a9 3612 long any_long;
9febdf04 3613 bool any_bool;
c76ac1ee 3614 void (*any_dptr) (void*);
acfe0abc 3615 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3616};
3617#endif
3618
acfe0abc 3619typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3620
3621#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3622#define FILTER_DATA(idx) \
3623 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3624#define FILTER_ISREADER(idx) \
3625 (PL_parser && PL_parser->rsfp_filters \
3626 && idx >= AvFILLp(PL_parser->rsfp_filters))
3627#define PERL_FILTER_EXISTS(i) \
3628 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3629 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3630
c5078cac
JH
3631#if defined(_AIX) && !defined(_AIX43)
3632#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3633/* We cannot include <crypt.h> to get the struct crypt_data
3634 * because of setkey prototype problems when threading */
3635typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3636 /* From OSF, Not needed in AIX
3637 char C[28], D[28];
3638 */
3639 char E[48];
3640 char KS[16][48];
3641 char block[66];
3642 char iobuf[16];
3643} CRYPTD;
3644#endif /* threading */
3645#endif /* AIX */
3646
e37778c2 3647#if !defined(OS2)
2c2d71f5
JH
3648# include "iperlsys.h"
3649#endif
504f80c1 3650
9c12f1e5 3651#ifdef __LIBCATAMOUNT__
00f254e2 3652#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3653#undef HAS_GROUP
3654#define FAKE_BIT_BUCKET
3655#endif
3656
d10dc2ae
JH
3657/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3658 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3659 * defined by Configure, despite their names being similar to the
3660 * other defines like USE_ITHREADS. Configure in fact knows nothing
3661 * about the randomised hashes. Therefore to enable/disable the hash
3662 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3663#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3664# define USE_HASH_SEED
504f80c1
JH
3665#endif
3666
598921a7
NC
3667/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3668 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3669 * it's not really needed.
3670 */
3671#if defined(WIN32)
3672# define YYTOKENTYPE
3673#endif
3674#include "perly.h"
3675
598921a7 3676
654eccd5
JD
3677/* macros to define bit-fields in structs. */
3678#ifndef PERL_BITFIELD8
3679# define PERL_BITFIELD8 unsigned
3680#endif
3681#ifndef PERL_BITFIELD16
3682# define PERL_BITFIELD16 unsigned
3683#endif
3684#ifndef PERL_BITFIELD32
3685# define PERL_BITFIELD32 unsigned
3686#endif
3687
79072805 3688#include "sv.h"
288b8c02 3689#include "regexp.h"
378cc40b 3690#include "util.h"
8d063cd8 3691#include "form.h"
79072805 3692#include "gv.h"
dd2155a4 3693#include "pad.h"
79072805 3694#include "cv.h"
abdd5c84 3695#include "opnames.h"
79072805 3696#include "op.h"
b3ca2e83 3697#include "hv.h"
79072805
LW
3698#include "cop.h"
3699#include "av.h"
79072805
LW
3700#include "mg.h"
3701#include "scope.h"
4438c4b7 3702#include "warnings.h"
a0ed51b3 3703#include "utf8.h"
8d063cd8 3704
0d7d409d
DM
3705/* these would be in doio.h if there was such a file */
3706#define my_stat() my_stat_flags(SV_GMAGIC)
3707#define my_lstat() my_lstat_flags(SV_GMAGIC)
3708
20f4945e 3709/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM
3710#undef _XPV_HEAD
3711#undef _XPVMG_HEAD
3712#undef _XPVCV_COMMON
7fae4e64
GS
3713
3714typedef struct _sublex_info SUBLEXINFO;
3715struct _sublex_info {
651b5b28
NC
3716 U8 super_state; /* lexer state to save */
3717 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3718 OP *sub_op; /* "lex_op" to use */
7cc34111 3719 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS
3720};
3721
199e78b7
DM
3722#include "parser.h"
3723
455ece5e 3724typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3725
2260ab51
KW
3726#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3727
3728/* These have to be predeclared, as they are used in proto.h which is #included
3729 * before their definitions in regcomp.h. */
3730
3731struct scan_data_t;
7dcac5f6
KW
3732typedef struct regnode_charclass regnode_charclass;
3733
2260ab51 3734struct regnode_charclass_class;
d1d040e5
KW