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handy.h: Add missing character classification synonym
[perl5.git] / perl.h
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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
85e6fe83
LW
11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
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14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
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21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
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26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
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31/* this is used for functions which take a depth trailing
32 * argument under debugging */
33#ifdef DEBUGGING
34#define _pDEPTH ,U32 depth
35#define _aDEPTH ,depth
36#else
37#define _pDEPTH
38#define _aDEPTH
39#endif
40
7dc3eb73 41/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
7dc3eb73
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43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
44
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
9267464d 47#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
996959af 48 defined(_STDC_C99) || defined(__c99)
86a3cabf 49# define HAS_C99 1
86a3cabf
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50#endif
51
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52/* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
54
7ee02ac1 55/* XXX NOTE that from here --> to <-- the same logic is
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56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
58
6f4183fe 59#ifdef USE_ITHREADS
acfe0abc 60# if !defined(MULTIPLICITY)
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61# define MULTIPLICITY
62# endif
63#endif
64
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65#ifdef PERL_GLOBAL_STRUCT_PRIVATE
66# ifndef PERL_GLOBAL_STRUCT
67# define PERL_GLOBAL_STRUCT
68# endif
69#endif
97aff369 70
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71#ifdef PERL_GLOBAL_STRUCT
72# ifndef MULTIPLICITY
73# define MULTIPLICITY
74# endif
75#endif
76
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77#ifdef MULTIPLICITY
78# ifndef PERL_IMPLICIT_CONTEXT
79# define PERL_IMPLICIT_CONTEXT
80# endif
81#endif
82
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83/* undef WIN32 when building on Cygwin (for libwin32) - gph */
84#ifdef __CYGWIN__
85# undef WIN32
86# undef _WIN32
87#endif
88
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89#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
90# ifndef SYMBIAN
91# define SYMBIAN
92# endif
93#endif
94
a0fd4948 95#ifdef __SYMBIAN32__
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96# include "symbian/symbian_proto.h"
97#endif
98
99/* Any stack-challenged places. The limit varies (and often
100 * is configurable), but using more than a kilobyte of stack
101 * is usually dubious in these systems. */
739a0b84
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102#if defined(__SYMBIAN32__)
103/* Symbian: need to work around the SDK features. *
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104 * On WINS: MS VC5 generates calls to _chkstk, *
105 * if a "large" stack frame is allocated. *
106 * gcc on MARM does not generate calls like these. */
107# define USE_HEAP_INSTEAD_OF_STACK
108#endif
109
dd134d2c 110/* Use the reentrant APIs like localtime_r and getpwent_r */
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111/* Win32 has naturally threadsafe libraries, no need to use any _r variants.
112 * XXX KEEP makedef.pl copy of this code in sync */
14795193 113#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
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114# define USE_REENTRANT_API
115#endif
116
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117/* <--- here ends the logic shared by perl.h and makedef.pl */
118
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119/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
120#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
121# define USING_MSVC6
122#endif
123
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124#undef START_EXTERN_C
125#undef END_EXTERN_C
126#undef EXTERN_C
127#ifdef __cplusplus
128# define START_EXTERN_C extern "C" {
129# define END_EXTERN_C }
130# define EXTERN_C extern "C"
131#else
132# define START_EXTERN_C
133# define END_EXTERN_C
134# define EXTERN_C extern
135#endif
136
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137/* Fallback definitions in case we don't have definitions from config.h.
138 This should only matter for systems that don't use Configure and
139 haven't been modified to define PERL_STATIC_INLINE yet.
140*/
141#if !defined(PERL_STATIC_INLINE)
142# ifdef HAS_STATIC_INLINE
143# define PERL_STATIC_INLINE static inline
144# else
145# define PERL_STATIC_INLINE static
146# endif
147#endif
148
da5fdda8 149#if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
27da23d5 150# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 151 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 152# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
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153# else
154# define PERL_GET_VARS() PL_VarsPtr
155# endif
27da23d5
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156#endif
157
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158/* this used to be off by default, now its on, see perlio.h */
159#define PERLIO_FUNCS_CONST
160
5aaab254 161#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
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162
163#ifdef PERL_GLOBAL_STRUCT
164# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
165#else
166# define dVAR dNOOP
167#endif
168
c5be433b 169#ifdef PERL_IMPLICIT_CONTEXT
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170# ifndef MULTIPLICITY
171# define MULTIPLICITY
c5be433b 172# endif
e8dda941 173# define tTHX PerlInterpreter*
5aaab254 174# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 175# define aTHX my_perl
9399a70c 176# define aTHXa(a) aTHX = (tTHX)a
27da23d5 177# ifdef PERL_GLOBAL_STRUCT
e8dda941 178# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 179# else
e8dda941 180# define dTHXa(a) pTHX = (tTHX)a
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181# endif
182# ifdef PERL_GLOBAL_STRUCT
183# define dTHX dVAR; pTHX = PERL_GET_THX
184# else
185# define dTHX pTHX = PERL_GET_THX
186# endif
c5be433b 187# define pTHX_ pTHX,
c5be433b 188# define aTHX_ aTHX,
4373e329 189# define pTHX_1 2
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190# define pTHX_2 3
191# define pTHX_3 4
192# define pTHX_4 5
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193# define pTHX_5 6
194# define pTHX_6 7
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195# define pTHX_7 8
196# define pTHX_8 9
197# define pTHX_9 10
a6fc70e5 198# define pTHX_12 13
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199# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
200# define PERL_TRACK_MEMPOOL
201# endif
202#else
203# undef PERL_TRACK_MEMPOOL
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204#endif
205
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206#ifdef DEBUGGING
207# define dTHX_DEBUGGING dTHX
208#else
209# define dTHX_DEBUGGING dNOOP
210#endif
211
76e3520e 212#define STATIC static
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213
214#ifndef PERL_CORE
215/* Do not use these macros. They were part of PERL_OBJECT, which was an
216 * implementation of multiplicity using C++ objects. They have been left
217 * here solely for the sake of XS code which has incorrectly
218 * cargo-culted them.
219 */
76e3520e 220#define CPERLscope(x) x
565764a8 221#define CPERLarg void
76e3520e 222#define CPERLarg_
e3b8966e 223#define _CPERLarg
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224#define PERL_OBJECT_THIS
225#define _PERL_OBJECT_THIS
226#define PERL_OBJECT_THIS_
312caa8e 227#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 228#define MEMBER_TO_FPTR(name) name
16c91539 229#endif /* !PERL_CORE */
76e3520e 230
16c91539 231#define CALLRUNOPS PL_runops
f9f4320a 232
3ab4a224 233#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 234
16c91539 235#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 236#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 237 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 238 (strbeg),(minend),(sv),(data),(flags))
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239#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
240 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
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241 (strend),(flags),(data))
242#define CALLREG_INTUIT_STRING(prog) \
16c91539 243 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 244
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245#define CALLREGFREE(prog) \
246 Perl_pregfree(aTHX_ (prog))
247
248#define CALLREGFREE_PVT(prog) \
4c8117d3 249 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 250
2fdbfb4d 251#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 252 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 253
2fdbfb4d 254#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 255 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
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256
257#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 258 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 259
192b9cd1 260#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
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262
263#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
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265
266#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
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268
269#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
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271
272#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
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274
275#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 276 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
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277
278#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 279 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
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280
281#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 282 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
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283
284#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 285 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
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286
287#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 288 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 289
49d7dfbc 290#define CALLREG_PACKAGE(rx) \
16c91539 291 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 292
00f254e2 293#if defined(USE_ITHREADS)
f9f4320a 294#define CALLREGDUPE(prog,param) \
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295 Perl_re_dup(aTHX_ (prog),(param))
296
297#define CALLREGDUPE_PVT(prog,param) \
16c91539 298 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 299 : (REGEXP *)NULL)
f9f4320a 300#endif
14dd3ad8 301
a20207d7 302
bcdf7404 303
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304
305
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306/*
307 * Because of backward compatibility reasons the PERL_UNUSED_DECL
308 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
309 *
310 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 311 * which do not have an "inlined" way (like the gcc __attribute__) of
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312 * marking unused variables (they need e.g. a #pragma) and therefore
313 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
314 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
315 *
316 */
1266ad8c 317
9969cdde 318#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 319# ifdef __cplusplus
5ba4cab2 320# define PERL_UNUSED_DECL
5b2bd0a5 321# else
5ba4cab2 322# define PERL_UNUSED_DECL __attribute__((unused))
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323# endif
324#endif
44dbb695 325
5b2bd0a5 326#ifndef PERL_UNUSED_DECL
98d1c64e 327# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || __GNUC__ >= 4)
5ba4cab2 328# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 329# else
5ba4cab2 330# define PERL_UNUSED_DECL
b79c357a 331# endif
5b2bd0a5 332#endif
00f254e2 333
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334/* gcc -Wall:
335 * for silencing unused variables that are actually used most of the time,
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336 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
337 * or variables/arguments that are used only in certain configurations.
349b520e 338 */
53c1dcc0 339#ifndef PERL_UNUSED_ARG
c707756e 340# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c 341#endif
53c1dcc0 342#ifndef PERL_UNUSED_VAR
a730e3f2 343# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 344#endif
ad73156c 345
23491f1d 346#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
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347# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
348#else
349# define PERL_UNUSED_CONTEXT
350#endif
351
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352/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
353 * g++ allows them but seems to have problems with them
354 * (insane errors ensue).
355 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
356 */
357#if defined(PERL_GCC_PEDANTIC) || \
358 (defined(__GNUC__) && defined(__cplusplus) && \
359 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
360# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
361# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
362# endif
363#endif
364
ffea512f 365/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
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366 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
367 *
368 * The main reason for this is that the combination of gcc -Wunused-result
369 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
370 * be silenced with casting to void. This causes trouble when the system
371 * header files use the attribute.
372 *
373 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
374 * is there for a good reason: you might lose success/failure information,
375 * or leak resources, or changes in resources.
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376 *
377 * But sometimes you just want to ignore the return value, e.g. on
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378 * codepaths soon ending up in abort, or in "best effort" attempts,
379 * or in situations where there is no good way to handle failures.
ffea512f 380 *
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381 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
382 * another possibility is that you can capture the return value
383 * and use PERL_UNUSED_VAR on that.
ffea512f 384 *
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385 * The __typeof__() is used instead of typeof() since typeof() is not
386 * available under strict C89, and because of compilers masquerading
387 * as gcc (clang and icc), we want exactly the gcc extension
388 * __typeof__ and nothing else.
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389 */
390#ifndef PERL_UNUSED_RESULT
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391# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
392# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
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393# else
394# define PERL_UNUSED_RESULT(v) ((void)(v))
395# endif
396#endif
397
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398/* on gcc (and clang), specify that a warning should be temporarily
399 * ignored; e.g.
400 *
7347ee54 401 * GCC_DIAG_IGNORE_DECL(-Wmultichar);
b56aac20 402 * char b = 'ab';
7347ee54 403 * GCC_DIAG_RESTORE_DECL;
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404 *
405 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
406 *
407 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
408 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f 409 *
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410 * Note on usage: all macros must be used at a place where a declaration
411 * or statement can occur, i.e., not in the middle of an expression.
412 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but
413 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and
414 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave
415 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT()
416 * and *_DIAG_RESTORE_STMT must be used with a following semicolon,
417 * and behave syntactically as statements (like NOOP).
c1d6452f 418 *
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419 */
420
57d4b8c5 421#if defined(__clang__) || defined(__clang) || \
d28ce8b4 422 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
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423# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
424/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 425# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 426 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
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427# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
428#else
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429# define GCC_DIAG_IGNORE(w)
430# define GCC_DIAG_RESTORE
b56aac20 431#endif
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432#define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP
433#define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP
434#define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP
435#define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP
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436/* for clang specific pragmas */
437#if defined(__clang__) || defined(__clang)
438# define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
439# define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
440 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
441# define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
442#else
443# define CLANG_DIAG_IGNORE(w)
444# define CLANG_DIAG_RESTORE
445#endif
7347ee54
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446#define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP
447#define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP
448#define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP
449#define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP
b56aac20 450
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451#if defined(_MSC_VER) && (_MSC_VER >= 1300)
452# define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \
453 __pragma(warning(disable : x))
454# define MSVC_DIAG_RESTORE __pragma(warning(pop))
455#else
456# define MSVC_DIAG_IGNORE(x)
457# define MSVC_DIAG_RESTORE
458#endif
459#define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP
460#define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP
461#define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP
462#define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP
463
6f207bd3 464#define NOOP /*EMPTY*/(void)0
91ca80c3 465#define dNOOP struct Perl___notused_struct
71be2cbc 466
0cb96387 467#ifndef pTHX
a78adc84 468/* Don't bother defining tTHX ; using it outside
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469 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
470 */
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471# define pTHX void
472# define pTHX_
0cb96387
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473# define aTHX
474# define aTHX_
9399a70c 475# define aTHXa(a) NOOP
0cb96387
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476# define dTHXa(a) dNOOP
477# define dTHX dNOOP
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478# define pTHX_1 1
479# define pTHX_2 2
480# define pTHX_3 3
481# define pTHX_4 4
3d42dc86
RGS
482# define pTHX_5 5
483# define pTHX_6 6
a3b680e6
AL
484# define pTHX_7 7
485# define pTHX_8 8
486# define pTHX_9 9
a6fc70e5 487# define pTHX_12 12
0cb96387
GS
488#endif
489
27da23d5
JH
490#ifndef dVAR
491# define dVAR dNOOP
492#endif
493
b4f7f263
GS
494/* these are only defined for compatibility; should not be used internally */
495#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS
496# define pTHXo pTHX
497# define pTHXo_ pTHX_
0cb96387
GS
498# define aTHXo aTHX
499# define aTHXo_ aTHX_
c5be433b 500# define dTHXo dTHX
71d280e3 501# define dTHXoa(x) dTHXa(x)
0cb96387
GS
502#endif
503
504#ifndef pTHXx
5aaab254 505# define pTHXx PerlInterpreter *my_perl
0cb96387 506# define pTHXx_ pTHXx,
0cb96387
GS
507# define aTHXx my_perl
508# define aTHXx_ aTHXx,
c5be433b 509# define dTHXx dTHX
22c35a8c 510#endif
71be2cbc 511
1de7c2ac
GS
512/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
513 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
514 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
515#ifdef PERL_IMPLICIT_SYS
27da23d5
JH
516# ifdef PERL_GLOBAL_STRUCT_PRIVATE
517# define dTHXs dVAR; dTHX
518# else
519# define dTHXs dTHX
520# endif
1de7c2ac 521#else
27da23d5
JH
522# ifdef PERL_GLOBAL_STRUCT_PRIVATE
523# define dTHXs dVAR
524# else
525# define dTHXs dNOOP
526# endif
1de7c2ac
GS
527#endif
528
5b692037
JH
529#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
530# ifndef PERL_USE_GCC_BRACE_GROUPS
531# define PERL_USE_GCC_BRACE_GROUPS
532# endif
533#endif
534
728e2803
PP
535/*
536 * STMT_START { statements; } STMT_END;
537 * can be used as a single statement, as in
538 * if (x) STMT_START { ... } STMT_END; else ...
539 *
540 * Trying to select a version that gives no warnings...
541 */
542#if !(defined(STMT_START) && defined(STMT_END))
5b692037 543# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 544# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803
PP
545# define STMT_END )
546# else
728e2803
PP
547# define STMT_START do
548# define STMT_END while (0)
728e2803
PP
549# endif
550#endif
551
d6f9c181
JH
552#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
553# define BYTEORDER 0x1234
79072805
LW
554#endif
555
556/* Overall memory policy? */
557#ifndef CONSERVATIVE
558# define LIBERAL 1
559#endif
560
8ada0baa
JH
561#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
562#define ASCIIish
563#else
564#undef ASCIIish
565#endif
566
79072805
LW
567/*
568 * The following contortions are brought to you on behalf of all the
569 * standards, semi-standards, de facto standards, not-so-de-facto standards
570 * of the world, as well as all the other botches anyone ever thought of.
571 * The basic theory is that if we work hard enough here, the rest of the
572 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
573 */
ac58e20f 574
ee0007ab 575/* define this once if either system, instead of cluttering up the src */
7c458fae 576#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW
577#define DOSISH 1
578#endif
579
3d97541c 580/* These exist only for back-compat with XS modules. */
8162b70e 581#ifndef PERL_CORE
516e10a9 582#define VOL volatile
3d97541c 583#define CAN_PROTOTYPE
ae75e3d0 584#define _(args) args
6c2ae642 585#define I_LIMITS
36a113ce 586#define I_STDARG
6c2ae642 587#define STANDARD_C
8162b70e 588#endif
663a0e37 589
284167a5
SM
590/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
591 * you get a perl without taint support, but doubtlessly with a lesser
592 * degree of support. Do not do so unless you know exactly what it means
593 * technically, have a good reason to do so, and know exactly how the
594 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
595 * a potential security risk due to flat out ignoring the security-relevant
596 * taint flags. This being said, a perl without taint support compiled in
597 * has marginal run-time performance benefits.
598 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
599 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
600 * silently ignores -t/-T instead of throwing an exception.
053a3618
SM
601 *
602 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 603 * voids your nonexistent warranty!
284167a5 604 */
dc6d7f5c 605#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
SM
606# define NO_TAINT_SUPPORT 1
607#endif
608
609/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
610 * operations into no-ops for a very modest speed-up. Enable only if you
611 * know what you're doing: tests and CPAN modules' tests are bound to fail.
612 */
dc6d7f5c 613#ifdef NO_TAINT_SUPPORT
284167a5
SM
614# define TAINT NOOP
615# define TAINT_NOT NOOP
616# define TAINT_IF(c) NOOP
617# define TAINT_ENV() NOOP
618# define TAINT_PROPER(s) NOOP
619# define TAINT_set(s) NOOP
620# define TAINT_get 0
621# define TAINTING_get 0
622# define TAINTING_set(s) NOOP
623# define TAINT_WARN_get 0
624# define TAINT_WARN_set(s) NOOP
625#else
bc2f1ca1 626 /* Set to tainted if we are running under tainting mode */
d48c660d 627# define TAINT (PL_tainted = PL_tainting)
bc2f1ca1
KW
628
629# define TAINT_NOT (PL_tainted = FALSE) /* Untaint */
630# define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */
2439e033 631# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
bc2f1ca1
KW
632 /* croak or warn if tainting */
633# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \
634 taint_proper(NULL, s); \
635 }
284167a5 636# define TAINT_set(s) (PL_tainted = (s))
34b63373 637# define TAINT_get (PL_tainted) /* Is something tainted? */
bc2f1ca1 638# define TAINTING_get (PL_tainting) /* Is taint checking enabled? */
284167a5 639# define TAINTING_set(s) (PL_tainting = (s))
bc2f1ca1
KW
640# define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations
641 are fatal
642 TRUE => they're just
643 warnings */
284167a5
SM
644# define TAINT_WARN_set(s) (PL_taint_warn = (s))
645#endif
a687059c 646
20be6587
DM
647/* flags used internally only within pp_subst and pp_substcont */
648#ifdef PERL_CORE
649# define SUBST_TAINT_STR 1 /* string tainted */
650# define SUBST_TAINT_PAT 2 /* pattern tainted */
651# define SUBST_TAINT_REPL 4 /* replacement tainted */
652# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
653# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
654#endif
655
d460ef45 656/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de
PP
657 defines move there? If so, I could simplify this a lot. --AD 9/96.
658*/
659/* Process group stuff changed from traditional BSD to POSIX.
660 perlfunc.pod documents the traditional BSD-style syntax, so we'll
661 try to preserve that, if possible.
662*/
663#ifdef HAS_SETPGID
664# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
da5fdda8
AC
665#elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
666# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
667#elif defined(HAS_SETPGRP2)
668# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
a6e633de
PP
669#endif
670#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
671# define HAS_SETPGRP /* Well, effectively it does . . . */
672#endif
673
674/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
675 our life easier :-) so we'll try it.
676*/
677#ifdef HAS_GETPGID
678# define BSD_GETPGRP(pid) getpgid((pid))
da5fdda8
AC
679#elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
680# define BSD_GETPGRP(pid) getpgrp((pid))
681#elif defined(HAS_GETPGRP2)
682# define BSD_GETPGRP(pid) getpgrp2((pid))
a6e633de
PP
683#endif
684#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
685# define HAS_GETPGRP /* Well, effectively it does . . . */
686#endif
687
d460ef45 688/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de
PP
689 have different behaviors, but perl.h used to define USE_BSDPGRP
690 (prior to 5.003_05) so some extension might depend on it.
691*/
692#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
693# ifndef USE_BSDPGRP
694# define USE_BSDPGRP
695# endif
663a0e37
LW
696#endif
697
486ec47a 698/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH
699 pthread.h must be included before all other header files.
700*/
3db8f154 701#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH
702# include <pthread.h>
703#endif
704
58ab9e8b 705#include <sys/types.h>
663a0e37 706
9d82a2b7 707# include <stdarg.h>
760ac839 708
27db2737
JH
709#ifdef I_STDINT
710# include <stdint.h>
711#endif
712
fe14fcc3 713#include <ctype.h>
63b481b9
AC
714#include <float.h>
715#include <limits.h>
a0d0e21e
LW
716
717#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
718#undef METHOD
a0d0e21e
LW
719#endif
720
12ae5dfc
JH
721#ifdef PERL_MICRO
722# define NO_LOCALE
723#endif
724
4633a7c4 725#ifdef I_LOCALE
36477c24 726# include <locale.h>
4633a7c4
LW
727#endif
728
6ebbc862
KW
729#ifdef I_XLOCALE
730# include <xlocale.h>
731#endif
732
aa8a2baa
KW
733/* If not forbidden, we enable locale handling if either 1) the POSIX 2008
734 * functions are available, or 2) just the setlocale() function. This logic is
735 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in
736 * sync. */
737#if ! defined(NO_LOCALE)
738
739# if ! defined(NO_POSIX_2008_LOCALE) \
740 && defined(HAS_NEWLOCALE) \
741 && defined(HAS_USELOCALE) \
742 && defined(HAS_DUPLOCALE) \
743 && defined(HAS_FREELOCALE) \
744 && defined(LC_ALL_MASK)
745
746 /* For simplicity, the code is written to assume that any platform advanced
747 * enough to have the Posix 2008 locale functions has LC_ALL. The final
748 * test above makes sure that assumption is valid */
749
750# define HAS_POSIX_2008_LOCALE
751# define USE_LOCALE
752# elif defined(HAS_SETLOCALE)
753# define USE_LOCALE
754# endif
755#endif
756
757#ifdef USE_LOCALE
ccd65d51 758# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
af573503 759 #define */
36477c24
PP
760# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
761 && defined(HAS_STRXFRM)
762# define USE_LOCALE_COLLATE
763# endif
764# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
765# define USE_LOCALE_CTYPE
766# endif
767# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
768# define USE_LOCALE_NUMERIC
769# endif
fa9b773e
KW
770# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
771# define USE_LOCALE_MESSAGES
772# endif
773# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
774# define USE_LOCALE_MONETARY
775# endif
56e45410
KW
776# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
777# define USE_LOCALE_TIME
778# endif
9821811f
KW
779# if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS)
780# define USE_LOCALE_ADDRESS
781# endif
782# if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION)
783# define USE_LOCALE_IDENTIFICATION
784# endif
785# if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT)
786# define USE_LOCALE_MEASUREMENT
787# endif
788# if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER)
789# define USE_LOCALE_PAPER
790# endif
791# if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE)
792# define USE_LOCALE_TELEPHONE
793# endif
a0d0e21e 794
5a53bf38
KW
795/* XXX The next few defines are unfortunately duplicated in makedef.pl, and
796 * changes here MUST also be made there */
797
aa8a2baa
KW
798# if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE)
799# define USE_POSIX_2008_LOCALE
800# ifndef USE_THREAD_SAFE_LOCALE
801# define USE_THREAD_SAFE_LOCALE
802# endif
e1895adc
KW
803 /* If compiled with
804 * -DUSE_THREAD_SAFE_LOCALE, will do so even
805 * on unthreaded builds */
aa8a2baa
KW
806# elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \
807 && ( defined(HAS_POSIX_2008_LOCALE) \
808 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \
809 && ! defined(NO_THREAD_SAFE_LOCALE)
e1895adc
KW
810# ifndef USE_THREAD_SAFE_LOCALE
811# define USE_THREAD_SAFE_LOCALE
812# endif
e9bc6d6b
KW
813# ifdef HAS_POSIX_2008_LOCALE
814# define USE_POSIX_2008_LOCALE
815# endif
816# endif
7f9e9632
KW
817#endif
818
69c5e0db
KW
819/* Microsoft documentation reads in the change log for VS 2015:
820 * "The localeconv function declared in locale.h now works correctly when
821 * per-thread locale is enabled. In previous versions of the library, this
822 * function would return the lconv data for the global locale, not the
823 * thread's locale."
824 */
825#if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900
826# define TS_W32_BROKEN_LOCALECONV
827#endif
828
fe14fcc3 829#include <setjmp.h>
79072805 830
a0d0e21e 831#ifdef I_SYS_PARAM
79072805
LW
832# ifdef PARAM_NEEDS_TYPES
833# include <sys/types.h>
834# endif
835# include <sys/param.h>
352d5a3a 836#endif
79072805 837
ce3470dc
AD
838/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
839 value something like 199306. This may be useful if no more-specific
840 feature test is available.
841*/
842#if defined(BSD)
843# ifndef BSDish
844# define BSDish
845# endif
846#endif
847
dd512de3
AC
848/* Use all the "standard" definitions */
849#include <stdlib.h>
03a14243 850
3f270f98
JH
851/* If this causes problems, set i_unistd=undef in the hint file. */
852#ifdef I_UNISTD
763ee752
AB
853# if defined(__amigaos4__)
854# ifdef I_NETINET_IN
855# include <netinet/in.h>
856# endif
857# endif
3f270f98 858# include <unistd.h>
6e3136a6
AB
859# if defined(__amigaos4__)
860/* Under AmigaOS 4 newlib.library provides an environ. However using
861 * it doesn't give us enough control over inheritance of variables by
862 * subshells etc. so replace with custom version based on abc-shell
863 * code. */
864extern char **myenviron;
865# undef environ
866# define environ myenviron
867# endif
3f270f98
JH
868#endif
869
de8ca8af
NT
870/* for WCOREDUMP */
871#ifdef I_SYS_WAIT
872# include <sys/wait.h>
873#endif
874
9969cdde 875#ifdef __SYMBIAN32__
27da23d5
JH
876# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
877#endif
878
21e89b5f 879#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 880EXTERN_C int syscall(int, ...);
2ef53570
JH
881#endif
882
21e89b5f 883#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 884EXTERN_C int usleep(unsigned int);
2ef53570
JH
885#endif
886
f2f9e01d
KW
887/* macros for correct constant construction. These are in C99 <stdint.h>
888 * (so they will not be available in strict C89 mode), but they are nice, so
889 * let's define them if necessary. */
890#ifndef UINT16_C
891# if INTSIZE >= 2
892# define UINT16_C(x) ((U16_TYPE)x##U)
893# else
894# define UINT16_C(x) ((U16_TYPE)x##UL)
895# endif
896#endif
1109a392 897
f2f9e01d
KW
898#ifndef UINT32_C
899# if INTSIZE >= 4
900# define UINT32_C(x) ((U32_TYPE)x##U)
901# else
902# define UINT32_C(x) ((U32_TYPE)x##UL)
903# endif
904#endif
1109a392 905
f2f9e01d
KW
906#ifdef I_STDINT
907 typedef intmax_t PERL_INTMAX_T;
908 typedef uintmax_t PERL_UINTMAX_T;
909#endif
910
911/* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't
912 * actually mean what it has always been documented to mean (see RT #119753)
913 * and is explicitly turned off outside of core with dire warnings about
914 * removing the undef. */
915
916#if defined(QUADKIND)
917# undef PeRl_INT64_C
918# undef PeRl_UINT64_C
919/* Prefer the native integer types (int and long) over long long
920 * (which is not C89) and Win32-specific __int64. */
921# if QUADKIND == QUAD_IS_INT && INTSIZE == 8
922# define PeRl_INT64_C(c) (c)
923# define PeRl_UINT64_C(c) CAT2(c,U)
924# endif
925# if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8
926# define PeRl_INT64_C(c) CAT2(c,L)
927# define PeRl_UINT64_C(c) CAT2(c,UL)
928# endif
929# if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG)
930# define PeRl_INT64_C(c) CAT2(c,LL)
931# define PeRl_UINT64_C(c) CAT2(c,ULL)
932# endif
933# if QUADKIND == QUAD_IS___INT64
934# define PeRl_INT64_C(c) CAT2(c,I64)
935# define PeRl_UINT64_C(c) CAT2(c,UI64)
936# endif
937# ifndef PeRl_INT64_C
938# define PeRl_INT64_C(c) ((I64)(c)) /* last resort */
939# define PeRl_UINT64_C(c) ((U64TYPE)(c))
940# endif
941/* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will
942 * not fly with C89-pedantic gcc, so let's undefine them first so that
943 * we can redefine them with our native integer preferring versions. */
944# if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC)
945# undef INT64_C
946# undef UINT64_C
947# endif
948# ifndef INT64_C
949# define INT64_C(c) PeRl_INT64_C(c)
950# endif
951# ifndef UINT64_C
952# define UINT64_C(c) PeRl_UINT64_C(c)
953# endif
1109a392 954
f2f9e01d
KW
955# ifndef I_STDINT
956 typedef I64TYPE PERL_INTMAX_T;
957 typedef U64TYPE PERL_UINTMAX_T;
1109a392 958# endif
f2f9e01d
KW
959# ifndef INTMAX_C
960# define INTMAX_C(c) INT64_C(c)
961# endif
962# ifndef UINTMAX_C
963# define UINTMAX_C(c) UINT64_C(c)
964# endif
965
966#else /* below QUADKIND is undefined */
967
968/* Perl doesn't work on 16 bit systems, so must be 32 bit */
969# ifndef I_STDINT
970 typedef I32TYPE PERL_INTMAX_T;
971 typedef U32TYPE PERL_UINTMAX_T;
972# endif
973# ifndef INTMAX_C
974# define INTMAX_C(c) INT32_C(c)
975# endif
976# ifndef UINTMAX_C
977# define UINTMAX_C(c) UINT32_C(c)
978# endif
979
980#endif /* no QUADKIND */
981
982#ifdef PERL_CORE
1109a392
MHM
983
984/* byte-swapping functions for big-/little-endian conversion */
985# define _swab_16_(x) ((U16)( \
f2f9e01d
KW
986 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \
987 (((U16)(x) & UINT16_C(0xff00)) >> 8) ))
1109a392
MHM
988
989# define _swab_32_(x) ((U32)( \
f2f9e01d
KW
990 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \
991 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \
992 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \
993 (((U32)(x) & UINT32_C(0xff000000)) >> 24) ))
1109a392
MHM
994
995# ifdef HAS_QUAD
996# define _swab_64_(x) ((U64)( \
f2f9e01d
KW
997 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \
998 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \
999 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \
1000 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \
1001 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \
1002 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \
1003 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \
1004 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) ))
1109a392
MHM
1005# endif
1006
9c17f24a
NC
1007/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
1008 at least on FreeBSD. YMMV, so experiment. */
1009#ifndef PERL_ARENA_SIZE
1010#define PERL_ARENA_SIZE 4080
1011#endif
1012
ccb2c8b8 1013/* Maximum level of recursion */
2b9dff67
RGS
1014#ifndef PERL_SUB_DEPTH_WARN
1015#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS
1016#endif
1017
1109a392
MHM
1018#endif /* PERL_CORE */
1019
e839e6ed
DM
1020/* Maximum number of args that may be passed to an OP_MULTICONCAT op.
1021 * It determines the size of local arrays in S_maybe_multiconcat() and
1022 * pp_multiconcat().
1023 */
1024#define PERL_MULTICONCAT_MAXARG 64
1025
1026/* The indexes of fields of a multiconcat aux struct.
1027 * The fixed fields are followed by nargs+1 const segment lengths,
1028 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8.
1029 */
1030
1031#define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */
1032#define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */
1033#define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */
1034#define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */
1035#define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */
1036#define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */
1037#define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a
1038 multiconcat header */
1039
bdf3085f
NC
1040/* We no longer default to creating a new SV for GvSV.
1041 Do this before embed. */
1042#ifndef PERL_CREATE_GVSV
7459f06b
NC
1043# ifndef PERL_DONT_CREATE_GVSV
1044# define PERL_DONT_CREATE_GVSV
1045# endif
bdf3085f
NC
1046#endif
1047
ca0c25f6
NC
1048#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
1049#define PERL_USES_PL_PIDSTATUS
1050#endif
1051
739a0b84 1052#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS
1053#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
1054#endif
1055
c31fac66
GS
1056#define MEM_SIZE Size_t
1057
1936d2a7
NC
1058/* Round all values passed to malloc up, by default to a multiple of
1059 sizeof(size_t)
1060*/
1061#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
1062#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
1063#endif
1064
f1200559
WH
1065/* sv_grow() will expand strings by at least a certain percentage of
1066 the previously *used* length to avoid excessive calls to realloc().
1067 The default is 25% of the current length.
1068*/
1069#ifndef PERL_STRLEN_EXPAND_SHIFT
1070# define PERL_STRLEN_EXPAND_SHIFT 2
1071#endif
1072
4bd4e933
SH
1073/* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably
1074 * onwards) when building Socket.xs, but we can just use a different definition
1075 * for STRUCT_OFFSET instead. */
1076#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910
1077# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
1078#else
1079# include <stddef.h>
1080# define STRUCT_OFFSET(s,m) offsetof(s,m)
1081#endif
d0b86e2f 1082
86477e89
KW
1083/* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is
1084 * in C89, but apparently there are platforms where it doesn't exist. See
1085 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.)
1086 * */
d0b86e2f
BF
1087#ifdef PERL_GCC_PEDANTIC
1088# undef HAS_PTRDIFF_T
51371543
GS
1089#endif
1090
86477e89
KW
1091#ifdef HAS_PTRDIFF_T
1092# define Ptrdiff_t ptrdiff_t
1093#else
1094# define Ptrdiff_t SSize_t
1095#endif
1096
9969cdde 1097#ifndef __SYMBIAN32__
d54fbe84 1098# include <string.h>
51371543
GS
1099#endif
1100
55497cff
PP
1101/* This comes after <stdlib.h> so we don't try to change the standard
1102 * library prototypes; we'll use our own in proto.h instead. */
03a14243 1103
4633a7c4 1104#ifdef MYMALLOC
86058a2d 1105# ifdef PERL_POLLUTE_MALLOC
ee13e175 1106# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS
1107# define Perl_malloc malloc
1108# define Perl_calloc calloc
1109# define Perl_realloc realloc
1110# define Perl_mfree free
ee13e175 1111# endif
86058a2d
GS
1112# else
1113# define EMBEDMYMALLOC /* for compatibility */
1114# endif
827e134a 1115
651b9576
GS
1116# define safemalloc Perl_malloc
1117# define safecalloc Perl_calloc
1118# define saferealloc Perl_realloc
1119# define safefree Perl_mfree
22f7c9c9 1120# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
54725a52 1121 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
22f7c9c9
JH
1122 code; \
1123 } STMT_END
1124# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
1125 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1126# define panic_write2(s) write(2, s, strlen(s))
1127# define CHECK_MALLOC_TAINT(newval) \
1128 CHECK_MALLOC_TOO_LATE_FOR_( \
1129 if (newval) { \
acfd4d8e 1130 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 1131 exit(1); })
22f7c9c9 1132# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 1133 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH
1134 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
1135 }} STMT_END;
f2517201
GS
1136#else /* MYMALLOC */
1137# define safemalloc safesysmalloc
1138# define safecalloc safesyscalloc
1139# define saferealloc safesysrealloc
1140# define safefree safesysfree
22f7c9c9
JH
1141# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
1142# define CHECK_MALLOC_TAINT(newval) ((void)0)
1143# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 1144#endif /* MYMALLOC */
4633a7c4 1145
fe13d51d 1146/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 1147#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
1148#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
1149#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1150#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
1151
fc36a67e 1152#ifndef memzero
04322328 1153# define memzero(d,l) memset(d,0,l)
d9d8d8de 1154#endif
378cc40b 1155
ae986130 1156#ifdef I_NETINET_IN
79072805 1157# include <netinet/in.h>
ae986130
LW
1158#endif
1159
28e8609d
JH
1160#ifdef I_ARPA_INET
1161# include <arpa/inet.h>
1162#endif
1163
1aef975c 1164#ifdef I_SYS_STAT
84902520 1165# include <sys/stat.h>
1aef975c 1166#endif
79072805 1167
287a962e
JD
1168/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1169 This definition should ideally go into win32/win32.h, but S_IFIFO is
1170 used later here in perl.h before win32/win32.h is being included. */
1171#if !defined(S_IFIFO) && defined(_S_IFIFO)
1172# define S_IFIFO _S_IFIFO
1173#endif
1174
cc3315ba 1175/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW
1176 like UTekV) are broken, sometimes giving false positives. Undefine
1177 them here and let the code below set them to proper values.
1178
1179 The ghs macro stands for GreenHills Software C-1.8.5 which
1180 is the C compiler for sysV88 and the various derivatives.
1181 This header file bug is corrected in gcc-2.5.8 and later versions.
1182 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1183
cc3315ba 1184#if defined(m88k) && defined(ghs)
79072805
LW
1185# undef S_ISDIR
1186# undef S_ISCHR
1187# undef S_ISBLK
1188# undef S_ISREG
1189# undef S_ISFIFO
1190# undef S_ISLNK
ee0007ab 1191#endif
135863df 1192
9245da2a 1193#include <time.h>
663a0e37 1194
fe14fcc3 1195#ifdef I_SYS_TIME
85e6fe83 1196# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1197# define KERNEL
1198# endif
1199# include <sys/time.h>
85e6fe83 1200# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
1201# undef KERNEL
1202# endif
a687059c 1203#endif
135863df 1204
55497cff 1205#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1206# include <sys/times.h>
d9d8d8de 1207#endif
8d063cd8 1208
663a0e37 1209#include <errno.h>
1e743fda 1210
acfe0abc 1211#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS
1212# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1213#endif
1214
da70cfc6 1215#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH
1216# include <sys/socket.h>
1217# if defined(USE_SOCKS) && defined(I_SOCKS)
1218# if !defined(INCLUDE_PROTOTYPES)
1219# define INCLUDE_PROTOTYPES /* for <socks.h> */
1220# define PERL_SOCKS_NEED_PROTOTYPES
1221# endif
1222# include <socks.h>
1223# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1224# undef INCLUDE_PROTOTYPES
1225# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1226# endif
d460ef45 1227# endif
1e743fda 1228# ifdef I_NETDB
2986a63f
JH
1229# ifdef NETWARE
1230# include<stdio.h>
1231# endif
1e743fda
JH
1232# include <netdb.h>
1233# endif
1234# ifndef ENOTSOCK
1235# ifdef I_NET_ERRNO
1236# include <net/errno.h>
1237# endif
1238# endif
1239#endif
1240
fa0a29af 1241/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM
1242 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1243 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1244#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM
1245# if defined(__THROW) && defined(__GLIBC__)
1246int sockatmark(int) __THROW;
1247# else
2ef53570 1248int sockatmark(int);
29820b6d 1249# endif
2ef53570
JH
1250#endif
1251
7e827271 1252#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
1253EXTERN_C int fchdir(int);
1254EXTERN_C int flock(int, int);
1255EXTERN_C int fseeko(FILE *, off_t, int);
1256EXTERN_C off_t ftello(FILE *);
1257#endif
1258
7e827271 1259#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d
JH
1260EXTERN_C char *crypt(const char *, const char *);
1261#endif
1262
a54aca4b 1263#if defined(__cplusplus) && defined(__CYGWIN__)
667e2948
SP
1264EXTERN_C char *crypt(const char *, const char *);
1265#endif
1266
131e4949
TC
1267/*
1268=head1 Errno
1269
1270=for apidoc m|void|SETERRNO|int errcode|int vmserrcode
1271
1272Set C<errno>, and on VMS set C<vaxc$errno>.
1273
1274=for apidoc mn|void|dSAVEDERRNO
1275
1276Declare variables needed to save C<errno> and any operating system
1277specific error number.
1278
1279=for apidoc mn|void|dSAVE_ERRNO
1280
1281Declare variables needed to save C<errno> and any operating system
1282specific error number, and save them for optional later restoration
1283by C<RESTORE_ERRNO>.
1284
1285=for apidoc mn|void|SAVE_ERRNO
1286
1287Save C<errno> and any operating system specific error number for
1288optional later restoration by C<RESTORE_ERRNO>. Requires
1289C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope.
1290
1291=for apidoc mn|void|RESTORE_ERRNO
1292
1293Restore C<errno> and any operating system specific error number that
1294was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>.
1295
1296=cut
1297*/
1298
1e743fda
JH
1299#ifdef SETERRNO
1300# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1301#endif
f86702cc
PP
1302
1303#ifdef VMS
1304# define SETERRNO(errcode,vmserrcode) \
1305 STMT_START { \
1306 set_errno(errcode); \
1307 set_vaxc_errno(vmserrcode); \
1308 } STMT_END
4ee39169
CS
1309# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1310# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1311# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1312# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1313
93189314
JH
1314# define LIB_INVARG LIB$_INVARG
1315# define RMS_DIR RMS$_DIR
1316# define RMS_FAC RMS$_FAC
1317# define RMS_FEX RMS$_FEX
1318# define RMS_FNF RMS$_FNF
1319# define RMS_IFI RMS$_IFI
1320# define RMS_ISI RMS$_ISI
1321# define RMS_PRV RMS$_PRV
1322# define SS_ACCVIO SS$_ACCVIO
1323# define SS_DEVOFFLINE SS$_DEVOFFLINE
1324# define SS_IVCHAN SS$_IVCHAN
1325# define SS_NORMAL SS$_NORMAL
8a9f18be 1326# define SS_NOPRIV SS$_NOPRIV
4388f261 1327# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1328#else
93189314
JH
1329# define LIB_INVARG 0
1330# define RMS_DIR 0
1331# define RMS_FAC 0
1332# define RMS_FEX 0
1333# define RMS_FNF 0
1334# define RMS_IFI 0
1335# define RMS_ISI 0
1336# define RMS_PRV 0
1337# define SS_ACCVIO 0
1338# define SS_DEVOFFLINE 0
1339# define SS_IVCHAN 0
1340# define SS_NORMAL 0
8a9f18be 1341# define SS_NOPRIV 0
4388f261 1342# define SS_BUFFEROVF 0
748a9306 1343#endif
ed6116ce 1344
6ca940a9
TC
1345#ifdef WIN32
1346# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1347# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1348# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1349# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1350#endif
1351
1352#ifdef OS2
1353# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1354# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1355# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1356# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1357#endif
1358
1359#ifndef SETERRNO
1360# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1361#endif
1362
1363#ifndef dSAVEDERRNO
1364# define dSAVEDERRNO int saved_errno
1365# define dSAVE_ERRNO int saved_errno = errno
1366# define SAVE_ERRNO (saved_errno = errno)
1367# define RESTORE_ERRNO (errno = saved_errno)
1368#endif
1369
40bec302
TC
1370/*
1371=head1 Warning and Dieing
1372
1373=for apidoc Amn|SV *|ERRSV
1374
1375Returns the SV for C<$@>, creating it if needed.
1376
1377=for apidoc Am|void|CLEAR_ERRSV
1378
1379Clear the contents of C<$@>, setting it to the empty string.
1380
1381This replaces any read-only SV with a fresh SV and removes any magic.
1382
1383=cut
1384*/
1385
f5fa9033 1386#define ERRSV GvSVn(PL_errgv)
dfd167e9 1387
b4f8d149 1388/* contains inlined gv_add_by_type */
dfd167e9 1389#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD
1390 SV ** const svp = &GvSV(PL_errgv); \
1391 if (!*svp) { \
a1b60c8d 1392 *svp = newSVpvs(""); \
b4f8d149
DD
1393 } else if (SvREADONLY(*svp)) { \
1394 SvREFCNT_dec_NN(*svp); \
b4f8d149 1395 *svp = newSVpvs(""); \
dfd167e9 1396 } else { \
b4f8d149 1397 SV *const errsv = *svp; \
a1b60c8d 1398 SvPVCLEAR(errsv); \
b4f8d149 1399 SvPOK_only(errsv); \
dfd167e9
NC
1400 if (SvMAGICAL(errsv)) { \
1401 mg_free(errsv); \
1402 } \
dfd167e9
NC
1403 } \
1404 } STMT_END
1405
1406
414bf5ae
MHM
1407#ifdef PERL_CORE
1408# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC
1409# define DEFSV_set(sv) \
1410 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1411# define SAVE_DEFSV \
1412 ( \
1413 save_gp(PL_defgv, 0), \
1414 GvINTRO_off(PL_defgv), \
1415 SAVEGENERICSV(GvSV(PL_defgv)), \
1416 GvSV(PL_defgv) = NULL \
1417 )
414bf5ae
MHM
1418#else
1419# define DEFSV GvSVn(PL_defgv)
55b5114f
FC
1420# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1421# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1422#endif
38a03e6e 1423
55497cff 1424#ifndef errno
5ff3f7a4
GS
1425 extern int errno; /* ANSI allows errno to be an lvalue expr.
1426 * For example in multithreaded environments
1427 * something like this might happen:
1428 * extern int *_errno(void);
1429 * #define errno (*_errno()) */
d9d8d8de 1430#endif
663a0e37 1431
7e996671
KW
1432#define UNKNOWN_ERRNO_MSG "(unknown)"
1433
b21d8587
AC
1434#if VMS
1435#define Strerror(e) strerror((e), vaxc$errno)
1436#else
1437#define Strerror(e) strerror(e)
35c8bce7 1438#endif
663a0e37 1439
2304df62 1440#ifdef I_SYS_IOCTL
79072805
LW
1441# ifndef _IOCTL_
1442# include <sys/ioctl.h>
1443# endif
a687059c
LW
1444#endif
1445
ee0007ab 1446#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
1447# ifdef HAS_SOCKETPAIR
1448# undef HAS_SOCKETPAIR
1449# endif
2304df62
AD
1450# ifdef I_NDBM
1451# undef I_NDBM
79072805 1452# endif
a687059c
LW
1453#endif
1454
02fc2eee
NC
1455#ifndef HAS_SOCKETPAIR
1456# ifdef HAS_SOCKET
1457# define socketpair Perl_my_socketpair
1458# endif
1459#endif
1460
a687059c 1461#if INTSIZE == 2
79072805
LW
1462# define htoni htons
1463# define ntohi ntohs
a687059c 1464#else
79072805
LW
1465# define htoni htonl
1466# define ntohi ntohl
a687059c
LW
1467#endif
1468
a0d0e21e 1469/* Configure already sets Direntry_t */
35c8bce7 1470#if defined(I_DIRENT)
da5fdda8
AC
1471# include <dirent.h>
1472#elif defined(I_SYS_NDIR)
1473# include <sys/ndir.h>
1474#elif defined(I_SYS_DIR)
1475# include <sys/dir.h>
4633a7c4 1476#endif
a687059c 1477
c623bd54
LW
1478/*
1479 * The following gobbledygook brought to you on behalf of __STDC__.
1480 * (I could just use #ifndef __STDC__, but this is more bulletproof
1481 * in the face of half-implementations.)
1482 */
1483
21e89b5f 1484#if defined(I_SYSMODE)
ca6e1c26
JH
1485#include <sys/mode.h>
1486#endif
1487
c623bd54
LW
1488#ifndef S_IFMT
1489# ifdef _S_IFMT
1490# define S_IFMT _S_IFMT
1491# else
1492# define S_IFMT 0170000
1493# endif
1494#endif
1495
1496#ifndef S_ISDIR
1497# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1498#endif
1499
1500#ifndef S_ISCHR
1501# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1502#endif
1503
1504#ifndef S_ISBLK
fe14fcc3
LW
1505# ifdef S_IFBLK
1506# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1507# else
1508# define S_ISBLK(m) (0)
1509# endif
c623bd54
LW
1510#endif
1511
1512#ifndef S_ISREG
1513# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1514#endif
1515
1516#ifndef S_ISFIFO
fe14fcc3
LW
1517# ifdef S_IFIFO
1518# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1519# else
1520# define S_ISFIFO(m) (0)
1521# endif
c623bd54
LW
1522#endif
1523
1524#ifndef S_ISLNK
da5fdda8
AC
1525# ifdef _S_ISLNK
1526# define S_ISLNK(m) _S_ISLNK(m)
1527# elif defined(_S_IFLNK)
1528# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1529# elif defined(S_IFLNK)
1530# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1531# else
1532# define S_ISLNK(m) (0)
1533# endif
c623bd54
LW
1534#endif
1535
1536#ifndef S_ISSOCK
da5fdda8
AC
1537# ifdef _S_ISSOCK
1538# define S_ISSOCK(m) _S_ISSOCK(m)
1539# elif defined(_S_IFSOCK)
1540# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1541# elif defined(S_IFSOCK)
1542# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1543# else
1544# define S_ISSOCK(m) (0)
1545# endif
c623bd54
LW
1546#endif
1547
1548#ifndef S_IRUSR
1549# ifdef S_IREAD
1550# define S_IRUSR S_IREAD
1551# define S_IWUSR S_IWRITE
1552# define S_IXUSR S_IEXEC
1553# else
1554# define S_IRUSR 0400
1555# define S_IWUSR 0200
1556# define S_IXUSR 0100
1557# endif
fac7cdfc 1558#endif
1559
1560#ifndef S_IRGRP
1561# ifdef S_IRUSR
1562# define S_IRGRP (S_IRUSR>>3)
1563# define S_IWGRP (S_IWUSR>>3)
1564# define S_IXGRP (S_IXUSR>>3)
1565# else
1566# define S_IRGRP 0040
1567# define S_IWGRP 0020
1568# define S_IXGRP 0010
1569# endif
1570#endif
1571
1572#ifndef S_IROTH
1573# ifdef S_IRUSR
1574# define S_IROTH (S_IRUSR>>6)
1575# define S_IWOTH (S_IWUSR>>6)
1576# define S_IXOTH (S_IXUSR>>6)
1577# else
1578# define S_IROTH 0040
1579# define S_IWOTH 0020
1580# define S_IXOTH 0010
1581# endif
c623bd54
LW
1582#endif
1583
1584#ifndef S_ISUID
1585# define S_ISUID 04000
1586#endif
1587
1588#ifndef S_ISGID
1589# define S_ISGID 02000
1590#endif
1591
ca6e1c26
JH
1592#ifndef S_IRWXU
1593# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1594#endif
ca6e1c26
JH
1595
1596#ifndef S_IRWXG
1597# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1598#endif
ca6e1c26
JH
1599
1600#ifndef S_IRWXO
1601# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1602#endif
ca6e1c26 1603
b6c36746 1604/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH
1605 * which would get included through <sys/file.h >, but that is 3000
1606 * lines in the future. --jhi */
1607
b6c36746 1608#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH
1609# define S_IREAD S_IRUSR
1610#endif
1611
b6c36746 1612#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH
1613# define S_IWRITE S_IWUSR
1614#endif
1615
1616#ifndef S_IEXEC
1617# define S_IEXEC S_IXUSR
1618#endif
1619
a0d0e21e 1620#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
1621# define SLOPPYDIVIDE
1622#endif
1623
748a9306
LW
1624#ifdef UV
1625#undef UV
1626#endif
1627
f1519f70
AC
1628/* This used to be conditionally defined based on whether we had a sprintf()
1629 * that correctly returns the string length (as required by C89), but we no
1630 * longer need that. XS modules can (and do) use this name, so it must remain
1631 * a part of the API that's visible to modules. But we no longer document it
1632 * either (because using sprintf() rather than snprintf() is almost always
1633 * a bad idea). */
1634#define my_sprintf sprintf
ce582cee 1635
5b692037
JH
1636/*
1637 * If we have v?snprintf() and the C99 variadic macros, we can just
1638 * use just the v?snprintf(). It is nice to try to trap the buffer
1639 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD
1640 * gcc statement expressions, then use the function wrappers which try
1641 * to trap the overflow. If we can use the gcc statement expressions,
1642 * we can try that even with the version that uses the C99 variadic
1643 * macros.
5b692037
JH
1644 */
1645
1208b3dd 1646/* Note that we do not check against snprintf()/vsnprintf() returning
4059ba87
AC
1647 * negative values because that is non-standard behaviour and we use
1648 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1649 * that should be true only if the snprintf()/vsnprintf() are true
1650 * to the standard. */
1208b3dd 1651
571ee10c 1652#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
e8549682 1653
a4eca1d4
JH
1654#ifdef USE_QUADMATH
1655# define my_snprintf Perl_my_snprintf
1656# define PERL_MY_SNPRINTF_GUARDED
4059ba87 1657#elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1658# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1659# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1660# define PERL_MY_SNPRINTF_GUARDED
5b692037 1661# else
e8549682 1662# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1663# endif
1664#else
1665# define my_snprintf Perl_my_snprintf
1208b3dd 1666# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH
1667#endif
1668
a4eca1d4
JH
1669/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1670 * dies if called under USE_QUADMATH. */
4059ba87 1671#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1672# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1673# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1674# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1675# else
e8549682 1676# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH
1677# endif
1678#else
1679# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1680# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1681#endif
d9fad198 1682
e8549682
JH
1683/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1684 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1685 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1686 * completely ignore it: otherwise you cannot know whether your output
1687 * was too long.)
1688 *
1689 * int len = my_sprintf(buf, max, ...);
1690 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1691 *
1692 * The trick is that in certain platforms [a] the my_sprintf() already
1693 * contains the sanity check, while in certain platforms [b] it needs
1694 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1695 * platforms the POST_GUARD actually does nothing since the check has
1696 * already been done. Watch out for the max being the same in both calls.
1697 *
1698 * If you actually use the snprintf/vsnprintf return value already,
1699 * you assumedly are checking its validity somehow. But you can
1700 * insert the POST_GUARD() also in that case. */
1701
1702#ifndef PERL_MY_SNPRINTF_GUARDED
1703# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1704#else
1705# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1706#endif
1707
1708#ifndef PERL_MY_VSNPRINTF_GUARDED
1709# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1710#else
1711# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1712#endif
1713
a6cc4119
SP
1714#ifdef HAS_STRLCAT
1715# define my_strlcat strlcat
a6cc4119
SP
1716#endif
1717
6dba01e2
KW
1718#if defined(PERL_CORE) || defined(PERL_EXT)
1719# ifdef HAS_MEMRCHR
1720# define my_memrchr memrchr
1721# else
1722# define my_memrchr S_my_memrchr
1723# endif
1724#endif
1725
a6cc4119
SP
1726#ifdef HAS_STRLCPY
1727# define my_strlcpy strlcpy
a6cc4119
SP
1728#endif
1729
aefb3fa0
DIM
1730#ifdef HAS_STRNLEN
1731# define my_strnlen strnlen
aefb3fa0
DIM
1732#endif
1733
05f13f53 1734/*
27d4fb96
PP
1735 The IV type is supposed to be long enough to hold any integral
1736 value or a pointer.
1737 --Andy Dougherty August 1996
1738*/
1739
a22e52b9
JH
1740typedef IVTYPE IV;
1741typedef UVTYPE UV;
8175356b 1742
10cc9d2a 1743#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1744# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS
1745# define IV_MAX INT64_MAX
1746# define IV_MIN INT64_MIN
1747# define UV_MAX UINT64_MAX
cae7ae48
JH
1748# ifndef UINT64_MIN
1749# define UINT64_MIN 0
1750# endif
5ff3f7a4
GS
1751# define UV_MIN UINT64_MIN
1752# else
1753# define IV_MAX PERL_QUAD_MAX
1754# define IV_MIN PERL_QUAD_MIN
1755# define UV_MAX PERL_UQUAD_MAX
1756# define UV_MIN PERL_UQUAD_MIN
1757# endif
cf2093f6
JH
1758# define IV_IS_QUAD
1759# define UV_IS_QUAD
79072805 1760#else
8175356b 1761# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS
1762# define IV_MAX INT32_MAX
1763# define IV_MIN INT32_MIN
716026f9
DL
1764# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1765# define UV_MAX UINT32_MAX
1766# else
1767# define UV_MAX 4294967295U
1768# endif
cae7ae48
JH
1769# ifndef UINT32_MIN
1770# define UINT32_MIN 0
1771# endif
5ff3f7a4
GS
1772# define UV_MIN UINT32_MIN
1773# else
1774# define IV_MAX PERL_LONG_MAX
1775# define IV_MIN PERL_LONG_MIN
1776# define UV_MAX PERL_ULONG_MAX
1777# define UV_MIN PERL_ULONG_MIN
1778# endif
8175356b 1779# if IVSIZE == 8
cf2093f6
JH
1780# define IV_IS_QUAD
1781# define UV_IS_QUAD
de1c2614
JH
1782# ifndef HAS_QUAD
1783# define HAS_QUAD
1784# endif
cf2093f6
JH
1785# else
1786# undef IV_IS_QUAD
1787# undef UV_IS_QUAD
9ea40801 1788#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC
1789/* We think that removing this decade-old undef this will cause too much
1790 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH
1791 However, we do need HAS_QUAD in the core for use by the drand48 code,
1792 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1793# undef HAS_QUAD
e25d460c 1794#endif
cf2093f6 1795# endif
79072805 1796#endif
d7d93a81 1797
6313e544
JH
1798#define Size_t_MAX (~(Size_t)0)
1799#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1800
cae7ae48 1801#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1802#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1803
28e5dec8 1804#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1805#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH
1806#endif
1807
d460ef45 1808/*
26bb67e2
JH
1809 * The macros INT2PTR and NUM2PTR are (despite their names)
1810 * bi-directional: they will convert int/float to or from pointers.
1811 * However the conversion to int/float are named explicitly:
1812 * PTR2IV, PTR2UV, PTR2NV.
1813 *
1814 * For int conversions we do not need two casts if pointers are
1815 * the same size as IV and UV. Otherwise we need an explicit
1816 * cast (PTRV) to avoid compiler warnings.
1817 */
56431972
RB
1818#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1819# define PTRV UV
1820# define INT2PTR(any,d) (any)(d)
da5fdda8
AC
1821#elif PTRSIZE == LONGSIZE
1822# define PTRV unsigned long
1823# define PTR2ul(p) (unsigned long)(p)
56431972 1824#else
da5fdda8 1825# define PTRV unsigned
e91e3b10
RB
1826#endif
1827
1828#ifndef INT2PTR
56431972 1829# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1830#endif
e91e3b10
RB
1831
1832#ifndef PTR2ul
1833# define PTR2ul(p) INT2PTR(unsigned long,p)
1834#endif
1835
56431972
RB
1836#define NUM2PTR(any,d) (any)(PTRV)(d)
1837#define PTR2IV(p) INT2PTR(IV,p)
1838#define PTR2UV(p) INT2PTR(UV,p)
1839#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1840#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1841
8141890a
JH
1842/* According to strict ANSI C89 one cannot freely cast between
1843 * data pointers and function (code) pointers. There are at least
1844 * two ways around this. One (used below) is to do two casts,
1845 * first the other pointer to an (unsigned) integer, and then
1846 * the integer to the other pointer. The other way would be
1847 * to use unions to "overlay" the pointers. For an example of
1848 * the latter technique, see union dirpu in struct xpvio in sv.h.
1849 * The only feasible use is probably temporarily storing
1850 * function pointers in a data pointer (such as a void pointer). */
1851
e91e3b10
RB
1852#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1853#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1854
65202027 1855#ifdef USE_LONG_DOUBLE
f3654d06
JH
1856# if LONG_DOUBLESIZE == DOUBLESIZE
1857# define LONG_DOUBLE_EQUALS_DOUBLE
1858# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS
1859# endif
1860#endif
1861
2d4389e4
JH
1862/* The following is all to get LDBL_DIG, in order to pick a nice
1863 default value for printing floating point numbers in Gconvert.
1864 (see config.h)
1865*/
63b481b9 1866#ifndef HAS_LDBL_DIG
68d4903c 1867# if LONG_DOUBLESIZE == 10
63b481b9
AC
1868# define LDBL_DIG 18 /* assume IEEE */
1869# elif LONG_DOUBLESIZE == 12
68d4903c 1870# define LDBL_DIG 18 /* gcc? */
63b481b9
AC
1871# elif LONG_DOUBLESIZE == 16
1872# define LDBL_DIG 33 /* assume IEEE */
1873# elif LONG_DOUBLESIZE == DOUBLESIZE
1874# define LDBL_DIG DBL_DIG /* bummer */
68d4903c 1875# endif
2d4389e4
JH
1876#endif
1877
a22e52b9 1878typedef NVTYPE NV;
8175356b 1879
792d8dab
JH
1880#ifdef I_IEEEFP
1881# include <ieeefp.h>
1882#endif
923fc586 1883
c32c3de1
JH
1884#ifdef USING_MSVC6
1885/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1886 * and for example NaN < IV_MIN. */
bcd8bfa9
JH
1887# define NAN_COMPARE_BROKEN
1888#endif
1889#if defined(__DECC) && defined(__osf__)
1890/* Also Tru64 cc has broken NaN comparisons. */
1891# define NAN_COMPARE_BROKEN
c32c3de1 1892#endif
6504068e
JH
1893#if defined(__sgi)
1894# define NAN_COMPARE_BROKEN
1895#endif
c32c3de1 1896
65202027 1897#ifdef USE_LONG_DOUBLE
923fc586
JH
1898# ifdef I_SUNMATH
1899# include <sunmath.h>
1900# endif
84e6cb05 1901# if defined(LDBL_DIG)
05b4a618
JH
1902# define NV_DIG LDBL_DIG
1903# ifdef LDBL_MANT_DIG
1904# define NV_MANT_DIG LDBL_MANT_DIG
1905# endif
1906# ifdef LDBL_MIN
1907# define NV_MIN LDBL_MIN
1908# endif
1909# ifdef LDBL_MAX
1910# define NV_MAX LDBL_MAX
1911# endif
1912# ifdef LDBL_MIN_EXP
1913# define NV_MIN_EXP LDBL_MIN_EXP
1914# endif
1915# ifdef LDBL_MAX_EXP
1916# define NV_MAX_EXP LDBL_MAX_EXP
1917# endif
1918# ifdef LDBL_MIN_10_EXP
1919# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1920# endif
1921# ifdef LDBL_MAX_10_EXP
1922# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1923# endif
1924# ifdef LDBL_EPSILON
1925# define NV_EPSILON LDBL_EPSILON
1926# endif
1927# ifdef LDBL_MAX
1928# define NV_MAX LDBL_MAX
20f6aaab 1929/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
da5fdda8
AC
1930# elif defined(HUGE_VALL)
1931# define NV_MAX HUGE_VALL
f4a14a62
JH
1932# endif
1933# endif
84e6cb05 1934# if defined(HAS_SQRTL)
8a00eddc
JH
1935# define Perl_acos acosl
1936# define Perl_asin asinl
1937# define Perl_atan atanl
940e3d56
JH
1938# define Perl_atan2 atan2l
1939# define Perl_ceil ceill
1940# define Perl_cos cosl
8a00eddc 1941# define Perl_cosh coshl
940e3d56 1942# define Perl_exp expl
55da5e5b 1943/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
1944# define Perl_floor floorl
1945# define Perl_fmod fmodl
1946# define Perl_log logl
8a00eddc 1947# define Perl_log10 log10l
940e3d56
JH
1948# define Perl_pow powl
1949# define Perl_sin sinl
8a00eddc 1950# define Perl_sinh sinhl
940e3d56 1951# define Perl_sqrt sqrtl
8a00eddc
JH
1952# define Perl_tan tanl
1953# define Perl_tanh tanhl
68d4903c 1954# endif
a3540c92 1955/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH
1956# ifndef Perl_modf
1957# ifdef HAS_MODFL
1958# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC
1959/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1960 prototype in <math.h> */
05b4a618 1961# ifndef HAS_MODFL_PROTO
a221a8a5 1962EXTERN_C long double modfl(long double, long double *);
05b4a618
JH
1963# endif
1964# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1965 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1966# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1967# endif
a3540c92 1968# endif
05b4a618
JH
1969# ifndef Perl_frexp
1970# ifdef HAS_FREXPL
1971# define Perl_frexp(x,y) frexpl(x,y)
da5fdda8 1972# elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
05b4a618 1973extern long double Perl_my_frexpl(long double x, int *e);
da5fdda8 1974# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
03476e8e 1975# endif
a3540c92 1976# endif
05b4a618
JH
1977# ifndef Perl_ldexp
1978# ifdef HAS_LDEXPL
1979# define Perl_ldexp(x, y) ldexpl(x,y)
da5fdda8
AC
1980# elif defined(HAS_SCALBNL) && FLT_RADIX == 2
1981# define Perl_ldexp(x,y) scalbnl(x,y)
98181445
JH
1982# endif
1983# endif
38dbb4c5 1984# ifndef Perl_isnan
e4c957f4 1985# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79 1986# define Perl_isnan(x) isnanl(x)
a1115378
JH
1987# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1988# define Perl_isnan(x) isnan(x)
758a5d79
JH
1989# endif
1990# endif
1991# ifndef Perl_isinf
e4c957f4 1992# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1993# define Perl_isinf(x) isinfl(x)
a1115378
JH
1994# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1995# define Perl_isinf(x) isinf(x)
bcd8bfa9 1996# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1997# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH
1998# endif
1999# endif
e38461cc
JH
2000# ifndef Perl_isfinite
2001# define Perl_isfinite(x) Perl_isfinitel(x)
2002# endif
84e6cb05
JH
2003#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
2004# include <quadmath.h>
2005# define NV_DIG FLT128_DIG
2006# define NV_MANT_DIG FLT128_MANT_DIG
2007# define NV_MIN FLT128_MIN
2008# define NV_MAX FLT128_MAX
2009# define NV_MIN_EXP FLT128_MIN_EXP
2010# define NV_MAX_EXP FLT128_MAX_EXP
2011# define NV_EPSILON FLT128_EPSILON
2012# define NV_MIN_10_EXP FLT128_MIN_10_EXP
2013# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH
2014# define Perl_acos acosq
2015# define Perl_asin asinq
2016# define Perl_atan atanq
2017# define Perl_atan2 atan2q
2018# define Perl_ceil ceilq
2019# define Perl_cos cosq
2020# define Perl_cosh coshq
2021# define Perl_exp expq
2022/* no Perl_fabs, but there's PERL_ABS */
2023# define Perl_floor floorq
2024# define Perl_fmod fmodq
2025# define Perl_log logq
2026# define Perl_log10 log10q
e6081c0e 2027# define Perl_signbit signbitq
84e6cb05
JH
2028# define Perl_pow powq
2029# define Perl_sin sinq
2030# define Perl_sinh sinhq
2031# define Perl_sqrt sqrtq
2032# define Perl_tan tanq
2033# define Perl_tanh tanhq
2034# define Perl_modf(x,y) modfq(x,y)
2035# define Perl_frexp(x,y) frexpq(x,y)
2036# define Perl_ldexp(x, y) ldexpq(x,y)
2037# define Perl_isinf(x) isinfq(x)
2038# define Perl_isnan(x) isnanq(x)
2039# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
b28053d1
JH
2040# define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
2041# define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
2042# define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
2043# define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
2044# define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
2045# define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
65202027 2046#else
2d4389e4 2047# define NV_DIG DBL_DIG
63b481b9
AC
2048# define NV_MANT_DIG DBL_MANT_DIG
2049# define NV_MIN DBL_MIN
2050# define NV_MAX DBL_MAX
2051# define NV_MIN_EXP DBL_MIN_EXP
2052# define NV_MAX_EXP DBL_MAX_EXP
2053# define NV_MIN_10_EXP DBL_MIN_10_EXP
2054# define NV_MAX_10_EXP DBL_MAX_10_EXP
2055# define NV_EPSILON DBL_EPSILON
2056# define NV_MAX DBL_MAX
2057# define NV_MIN DBL_MIN
940e3d56 2058
55da5e5b 2059/* These math interfaces are C89. */
8a00eddc
JH
2060# define Perl_acos acos
2061# define Perl_asin asin
2062# define Perl_atan atan
940e3d56
JH
2063# define Perl_atan2 atan2
2064# define Perl_ceil ceil
2065# define Perl_cos cos
8a00eddc 2066# define Perl_cosh cosh
940e3d56 2067# define Perl_exp exp
55da5e5b 2068/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH
2069# define Perl_floor floor
2070# define Perl_fmod fmod
2071# define Perl_log log
8a00eddc 2072# define Perl_log10 log10
940e3d56
JH
2073# define Perl_pow pow
2074# define Perl_sin sin
8a00eddc 2075# define Perl_sinh sinh
940e3d56 2076# define Perl_sqrt sqrt
8a00eddc
JH
2077# define Perl_tan tan
2078# define Perl_tanh tanh
940e3d56
JH
2079
2080# define Perl_modf(x,y) modf(x,y)
2081# define Perl_frexp(x,y) frexp(x,y)
2082# define Perl_ldexp(x,y) ldexp(x,y)
2083
1a322af2
JH
2084# ifndef Perl_isnan
2085# ifdef HAS_ISNAN
2086# define Perl_isnan(x) isnan(x)
2087# endif
2088# endif
2089# ifndef Perl_isinf
2090# if defined(HAS_ISINF)
2091# define Perl_isinf(x) isinf(x)
bcd8bfa9 2092# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2093# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH
2094# endif
2095# endif
2096# ifndef Perl_isfinite
2097# ifdef HAS_ISFINITE
2098# define Perl_isfinite(x) isfinite(x)
2099# elif defined(HAS_FINITE)
2100# define Perl_isfinite(x) finite(x)
2101# endif
2102# endif
758a5d79
JH
2103#endif
2104
30404d48
JH
2105/* fpclassify(): C99. It is supposed to be a macro that switches on
2106* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2107#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2108# include <math.h>
25c46df8
JH
2109# if defined(FP_INFINITE) && defined(FP_NAN)
2110# define Perl_fp_class(x) fpclassify(x)
2111# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2112# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2113# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2114# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2115# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2116# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2117/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2118 * actually not the C99 fpclassify, with its own set of return defines. */
2119# define Perl_fp_class(x) fpclassify(x)
2120# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2121# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2122# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH
2123# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2124# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2125# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH
2126# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2127# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2128# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2129# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2130# else
2131# undef Perl_fp_class /* Unknown set of defines */
2132# endif
30404d48
JH
2133#endif
2134
25c46df8
JH
2135/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2136 * are identical to the C99 fpclassify(). */
2137#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2138# include <math.h>
558f3e66
CB
2139# ifdef __VMS
2140 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2141# include <fp.h>
56610b8f
CB
2142 /* oh, and the isnormal macro has a typo in it! */
2143# undef isnormal
2144# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2145# endif
25c46df8
JH
2146# if defined(FP_INFINITE) && defined(FP_NAN)
2147# define Perl_fp_class(x) fp_classify(x)
2148# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2149# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2150# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2151# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2152# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2153# else
2154# undef Perl_fp_class /* Unknown set of defines */
2155# endif
f279e099 2156#endif
205f51d8 2157
30404d48
JH
2158/* Feel free to check with me for the SGI manpages, SGI testing,
2159 * etcetera, if you want to try getting this to work with IRIX.
2160 *
2161 * - Allen <allens@cpan.org> */
2162
2163/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2164#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH
2165/* Solaris and IRIX have fpclass/fpclassl, but they are using
2166 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2167 * Define some symbols also as cpp symbols so we can detect them. */
033a6f7a 2168# if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
25c46df8
JH
2169# define FP_PINF FP_PINF
2170# define FP_QNAN FP_QNAN
2171# endif
f279e099 2172# include <math.h>
758a5d79
JH
2173# ifdef I_IEEFP
2174# include <ieeefp.h>
2175# endif
2176# ifdef I_FP
2177# include <fp.h>
2178# endif
2179# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2180# define Perl_fp_class(x) fpclassl(x)
758a5d79 2181# else
f279e099
JH
2182# define Perl_fp_class(x) fpclass(x)
2183# endif
25c46df8 2184# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH
2185# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2186# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2187# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2188# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2189# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2190# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2191# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2192# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2193# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2194# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2195# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH
2196# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2197# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2198# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2199# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2200# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2201# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2202# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2203# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2204# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2205# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH
2206# else
2207# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2208# endif
758a5d79
JH
2209#endif
2210
30404d48
JH
2211/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2212#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH
2213# include <math.h>
2214# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2215# include <fp_class.h>
2216# endif
25c46df8 2217# if defined(FP_POS_INF) && defined(FP_QNAN)
033a6f7a 2218# ifdef __sgi /* XXX Configure test instead */
25c46df8
JH
2219# ifdef USE_LONG_DOUBLE
2220# define Perl_fp_class(x) fp_class_l(x)
2221# else
2222# define Perl_fp_class(x) fp_class_d(x)
2223# endif
f279e099 2224# else
25c46df8
JH
2225# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2226# define Perl_fp_class(x) fp_classl(x)
2227# else
2228# define Perl_fp_class(x) fp_class(x)
2229# endif
f279e099 2230# endif
25c46df8
JH
2231# if defined(FP_POS_INF) && defined(FP_QNAN)
2232# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2233# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2234# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2235# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2236# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2237# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2238# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2239# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2240# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2241# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2242# else
25c46df8 2243# undef Perl_fp_class /* Unknown set of defines */
30404d48 2244# endif
f279e099 2245# endif
30404d48
JH
2246#endif
2247
052758ae 2248/* class(), _class(): Legacy: AIX. */
758a5d79
JH
2249#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2250# include <math.h>
25c46df8
JH
2251# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2252# ifndef _cplusplus
2253# define Perl_fp_class(x) class(x)
2254# else
2255# define Perl_fp_class(x) _class(x)
2256# endif
2257# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2258# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2259# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2260# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2261# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2262# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2263# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2264# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2265# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2266# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2267# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2268# else
2269# undef Perl_fp_class /* Unknown set of defines */
2270# endif
758a5d79 2271# endif
30404d48
JH
2272#endif
2273
2274/* Win32: _fpclass(), _isnan(), _finite(). */
90f54b14 2275#ifdef _MSC_VER
796ea9ea
JH
2276# ifndef Perl_isnan
2277# define Perl_isnan(x) _isnan(x)
2278# endif
2279# ifndef Perl_isfinite
2280# define Perl_isfinite(x) _finite(x)
2281# endif
2282# ifndef Perl_fp_class_snan
25c46df8
JH
2283/* No simple way to #define Perl_fp_class because _fpclass()
2284 * returns a set of bits. */
796ea9ea
JH
2285# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2286# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2287# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH
2288# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2289# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2290# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2291# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2292# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2293# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2294# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2295# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2296# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2297# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2298# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2299# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2300# endif
f279e099
JH
2301#endif
2302
2303#if !defined(Perl_fp_class_inf) && \
2304 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2305# define Perl_fp_class_inf(x) \
2306 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2307#endif
2308
2309#if !defined(Perl_fp_class_nan) && \
2310 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2311# define Perl_fp_class_nan(x) \
2312 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2313#endif
2314
2315#if !defined(Perl_fp_class_zero) && \
2316 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2317# define Perl_fp_class_zero(x) \
2318 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2319#endif
2320
2321#if !defined(Perl_fp_class_norm) && \
2322 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2323# define Perl_fp_class_norm(x) \
2324 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2325#endif
2326
2327#if !defined(Perl_fp_class_denorm) && \
2328 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2329# define Perl_fp_class_denorm(x) \
2330 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2331#endif
758a5d79
JH
2332
2333#ifndef Perl_isnan
1a322af2
JH
2334# ifdef Perl_fp_class_nan
2335# define Perl_isnan(x) Perl_fp_class_nan(x)
da5fdda8
AC
2336# elif defined(HAS_UNORDERED)
2337# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2338# else
da5fdda8 2339# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH
2340# endif
2341#endif
2342
1a322af2
JH
2343#ifndef Perl_isinf
2344# ifdef Perl_fp_class_inf
2345# define Perl_isinf(x) Perl_fp_class_inf(x)
2346# endif
ca6c63e1
JH
2347#endif
2348
758a5d79 2349#ifndef Perl_isfinite
25c46df8 2350# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2351# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2352# elif defined(HAS_FINITE)
c496ca58 2353# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH
2354# elif defined(Perl_fp_class_finite)
2355# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2356# else
c496ca58
JH
2357/* For the infinities the multiplication returns nan,
2358 * for the nan the multiplication also returns nan,
2359 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2360# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2361# endif
65202027
DS
2362#endif
2363
25c46df8
JH
2364#ifndef Perl_isinf
2365# if defined(Perl_isfinite) && defined(Perl_isnan)
2366# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2367# endif
2368#endif
2369
d3685250
JH
2370/* We need Perl_isfinitel (ends with ell) (if available) even when
2371 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2372 * needs that. */
2373#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2374/* If isfinite() is a macro and looks like we have C99,
2375 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2376# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH
2377# define Perl_isfinitel(x) isfinite(x)
2378# elif defined(HAS_ISFINITEL)
2379# define Perl_isfinitel(x) isfinitel(x)
2380# elif defined(HAS_FINITEL)
2381# define Perl_isfinitel(x) finitel(x)
2382# elif defined(HAS_INFL) && defined(HAS_NANL)
2383# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2384# else
99bf9e32 2385# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH
2386# endif
2387#endif
2388
a36244b7
JH
2389/* The default is to use Perl's own atof() implementation (in numeric.c).
2390 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2391 * it is however best to use the native implementation of atof.
2392 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2393 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS
2394 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2395 * you may need to be using a different function than atof! */
a36244b7
JH
2396
2397#ifndef USE_PERL_ATOF
2398# ifndef _UNICOS
2399# define USE_PERL_ATOF
2400# endif
2401#else
2402# if USE_PERL_ATOF == 0
2403# undef USE_PERL_ATOF
2404# endif
2405#endif
2406
2407#ifdef USE_PERL_ATOF
2408# define Perl_atof(s) Perl_my_atof(s)
6928bedc 2409# define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0)
a36244b7
JH
2410#else
2411# define Perl_atof(s) (NV)atof(s)
2412# define Perl_atof2(s, n) ((n) = atof(s))
2413#endif
6928bedc 2414#define my_atof2(a,b) my_atof3(a,b,0)
cf2093f6 2415
99abf803
PP
2416/*
2417 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2418 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2419 * depending on local options. Until Configure detects this (or at least
2420 * detects whether the "signed" keyword is available) the CHAR ranges
2421 * will not be included. UCHAR functions normally.
2422 * - kja
2423 */
27d4fb96 2424
6ec488b3
AC
2425#define PERL_UCHAR_MIN ((unsigned char)0)
2426#define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2427
6ec488b3
AC
2428#define PERL_USHORT_MIN ((unsigned short)0)
2429#define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
27d4fb96 2430
6ec488b3
AC
2431#define PERL_SHORT_MAX ((short)SHRT_MAX)
2432#define PERL_SHORT_MIN ((short)SHRT_MIN)
27d4fb96 2433
6ec488b3 2434#define PERL_UINT_MAX ((unsigned int)UINT_MAX)
99abf803 2435#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2436
6ec488b3
AC
2437#define PERL_INT_MAX ((int)INT_MAX)
2438#define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2439
6ec488b3 2440#define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
99abf803 2441#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2442
6ec488b3
AC
2443#define PERL_LONG_MAX ((long)LONG_MAX)
2444#define PERL_LONG_MIN ((long)LONG_MIN)
760ac839 2445
d7d93a81 2446#ifdef UV_IS_QUAD
99abf803 2447# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2448# define PERL_UQUAD_MIN ((UV)0)
99abf803 2449# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2450# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
79072805
LW
2451#endif
2452
ee0007ab 2453typedef MEM_SIZE STRLEN;
450a55e4 2454
79072805
LW
2455typedef struct op OP;
2456typedef struct cop COP;
2457typedef struct unop UNOP;
2f7c6295 2458typedef struct unop_aux UNOP_AUX;
79072805
LW
2459typedef struct binop BINOP;
2460typedef struct listop LISTOP;
2461typedef struct logop LOGOP;
79072805
LW
2462typedef struct pmop PMOP;
2463typedef struct svop SVOP;
7934575e 2464typedef struct padop PADOP;
79072805 2465typedef struct pvop PVOP;
79072805 2466typedef struct loop LOOP;
b46e009d 2467typedef struct methop METHOP;
79072805 2468
7aef8e5b 2469#ifdef PERL_CORE
8be227ab
FC
2470typedef struct opslab OPSLAB;
2471typedef struct opslot OPSLOT;
2472#endif
2473
52db365a 2474typedef struct block_hooks BHK;
1830b3d9 2475typedef struct custom_op XOP;
52db365a 2476
cd1541b2
NC
2477typedef struct interpreter PerlInterpreter;
2478
d2b3f365 2479/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2480#if defined(__sgi)
d2b3f365 2481# define STRUCT_SV perl_sv
b8d3c5db
JH
2482#else
2483# define STRUCT_SV sv
2484#endif
2485typedef struct STRUCT_SV SV;
79072805
LW
2486typedef struct av AV;
2487typedef struct hv HV;
2488typedef struct cv CV;
d2f13c59 2489typedef struct p5rx REGEXP;
79072805 2490typedef struct gp GP;
0c30d9ec 2491typedef struct gv GV;
8990e307 2492typedef struct io IO;
c09156bb 2493typedef struct context PERL_CONTEXT;
79072805
LW
2494typedef struct block BLOCK;
2495
2496typedef struct magic MAGIC;
2497typedef struct xpv XPV;
2498typedef struct xpviv XPVIV;
ff68c719 2499typedef struct xpvuv XPVUV;
79072805
LW
2500typedef struct xpvnv XPVNV;
2501typedef struct xpvmg XPVMG;
2502typedef struct xpvlv XPVLV;
d361b004 2503typedef struct xpvinvlist XINVLIST;
79072805
LW
2504typedef struct xpvav XPVAV;
2505typedef struct xpvhv XPVHV;
2506typedef struct xpvgv XPVGV;
2507typedef struct xpvcv XPVCV;
2508typedef struct xpvbm XPVBM;
2509typedef struct xpvfm XPVFM;
8990e307 2510typedef struct xpvio XPVIO;
79072805
LW
2511typedef struct mgvtbl MGVTBL;
2512typedef union any ANY;
5f7fde29
GS
2513typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2514typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS
2515typedef struct clone_params CLONE_PARAMS;
2516
0f94cb1f 2517/* a pad is currently just an AV; but that might change,
7261499d
FC
2518 * so hide the type. */
2519typedef struct padlist PADLIST;
67634234 2520typedef AV PAD;
9b7476d7 2521typedef struct padnamelist PADNAMELIST;
0f94cb1f 2522typedef struct padname PADNAME;
67634234 2523
5a736967
DM
2524/* always enable PERL_OP_PARENT */
2525#if !defined(PERL_OP_PARENT)
5d32d268
DM
2526# define PERL_OP_PARENT
2527#endif
2528
93c10d60
FC
2529/* enable PERL_COPY_ON_WRITE by default */
2530#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2531# define PERL_COPY_ON_WRITE
13b0f67d 2532#endif
07d01d6e 2533
93c10d60 2534#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2535# define PERL_ANY_COW
9f351b45
DM
2536#else
2537# define PERL_SAWAMPERSAND
db2c6cb3
FC
2538#endif
2539
40653c20
FC
2540#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2541# error PERL_DEBUG_READONLY_OPS only works with ithreads
2542#endif
2543
378cc40b 2544#include "handy.h"
64935bc6 2545#include "charclass_invlists.h"
a0d0e21e 2546
6b8eaf93 2547#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH
2548# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2549# define USE_64_BIT_RAWIO /* implicit */
2550# endif
4564133c
JH
2551#endif
2552
6b8eaf93
JH
2553/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2554 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2555 * however, because operating systems like to do that themself. */
2556#ifndef FSEEKSIZE
2557# ifdef HAS_FSEEKO
2558# define FSEEKSIZE LSEEKSIZE
2559# else
2560# define FSEEKSIZE LONGSIZE
d460ef45 2561# endif
6b8eaf93
JH
2562#endif
2563
2564#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH
2565# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2566# define USE_64_BIT_STDIO /* implicit */
2567# endif
2568#endif
4564133c 2569
09458382 2570#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH
2571# ifdef HAS_OFF64_T
2572# undef Off_t
2573# define Off_t off64_t
2574# undef LSEEKSIZE
2575# define LSEEKSIZE 8
5ff3f7a4 2576# endif
d9b3e12d
JH
2577/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2578 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2579 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH
2580# if defined(USE_OPEN64)
2581# define open open64
5ff3f7a4 2582# endif
d9b3e12d
JH
2583# if defined(USE_LSEEK64)
2584# define lseek lseek64
6b8eaf93
JH
2585# else
2586# if defined(USE_LLSEEK)
2587# define lseek llseek
2588# endif
d9b3e12d
JH
2589# endif
2590# if defined(USE_STAT64)
2591# define stat stat64
2592# endif
2593# if defined(USE_FSTAT64)
2594# define fstat fstat64
2595# endif
2596# if defined(USE_LSTAT64)
2597# define lstat lstat64
2598# endif
2599# if defined(USE_FLOCK64)
2600# define flock flock64
2601# endif
2602# if defined(USE_LOCKF64)
2603# define lockf lockf64
2604# endif
2605# if defined(USE_FCNTL64)
2606# define fcntl fcntl64
2607# endif
2608# if defined(USE_TRUNCATE64)
2609# define truncate truncate64
2610# endif
2611# if defined(USE_FTRUNCATE64)
2612# define ftruncate ftruncate64
2613# endif
2614#endif
2615
2616#ifdef USE_64_BIT_STDIO
2617# ifdef HAS_FPOS64_T
2618# undef Fpos_t
2619# define Fpos_t fpos64_t
2620# endif
2621/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2622 * will trigger defines like the ones below. Some 64-bit environments,
2623 * however, do not. */
2624# if defined(USE_FOPEN64)
2625# define fopen fopen64
2626# endif
2627# if defined(USE_FSEEK64)
6b8eaf93 2628# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH
2629# endif
2630# if defined(USE_FTELL64)
6b8eaf93 2631# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH
2632# endif
2633# if defined(USE_FSETPOS64)
2634# define fsetpos fsetpos64
2635# endif
2636# if defined(USE_FGETPOS64)
2637# define fgetpos fgetpos64
2638# endif
2639# if defined(USE_TMPFILE64)
2640# define tmpfile tmpfile64
2641# endif
2642# if defined(USE_FREOPEN64)
2643# define freopen freopen64
5ff3f7a4
GS
2644# endif
2645#endif
2646
e37778c2 2647#if defined(OS2)
2c2d71f5
JH
2648# include "iperlsys.h"
2649#endif
2650
748a9306 2651#ifdef DOSISH
19848b3f
JH
2652# if defined(OS2)
2653# include "os2ish.h"
2654# else
2655# include "dosish.h"
2656# endif
009819bb 2657#elif defined(VMS)
748a9306 2658# include "vmsish.h"
009819bb 2659#elif defined(PLAN9)
19848b3f 2660# include "./plan9/plan9ish.h"
009819bb 2661#elif defined(__VOS__)
196918b0
PG
2662# ifdef __GNUC__
2663# include "./vos/vosish.h"
2664# else
2665# include "vos/vosish.h"
2666# endif
009819bb 2667#elif defined(__SYMBIAN32__)
27da23d5 2668# include "symbian/symbianish.h"
009819bb 2669#elif defined(__HAIKU__)
df00ff3b 2670# include "haiku/haikuish.h"
009819bb 2671#else
19848b3f 2672# include "unixish.h"
13b6e58c
JH
2673#endif
2674
ea34f6bd 2675#ifdef __amigaos4__
3c0208ad
AB
2676# include "amigaos.h"
2677# undef FD_CLOEXEC /* a lie in AmigaOS */
2678#endif
2679
2946a158 2680/* NSIG logic from Configure --> */
2946a158
JH
2681#ifndef NSIG
2682# ifdef _NSIG
2683# define NSIG (_NSIG)
da5fdda8 2684# elif defined(SIGMAX)
2946a158 2685# define NSIG (SIGMAX+1)
da5fdda8 2686# elif defined(SIG_MAX)
2946a158 2687# define NSIG (SIG_MAX+1)
da5fdda8 2688# elif defined(_SIG_MAX)
2946a158 2689# define NSIG (_SIG_MAX+1)
da5fdda8 2690# elif defined(MAXSIG)
2946a158 2691# define NSIG (MAXSIG+1)
da5fdda8 2692# elif defined(MAX_SIG)
2946a158 2693# define NSIG (MAX_SIG+1)
da5fdda8 2694# elif defined(SIGARRAYSIZE)
2946a158 2695# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
da5fdda8 2696# elif defined(_sys_nsig)
2946a158 2697# define NSIG (_sys_nsig) /* Solaris 2.5 */
da5fdda8
AC
2698# else
2699 /* Default to some arbitrary number that's big enough to get most
2700 * of the common signals. */
2946a158 2701# define NSIG 50
da5fdda8 2702# endif
2946a158
JH
2703#endif
2704/* <-- NSIG logic from Configure */
2705
13b6e58c
JH
2706#ifndef NO_ENVIRON_ARRAY
2707# define USE_ENVIRON_ARRAY
2708#endif
32f822de 2709
c77b533b
JH
2710/*
2711 * initialise to avoid floating-point exceptions from overflow, etc
2712 */
2713#ifndef PERL_FPU_INIT
2714# ifdef HAS_FPSETMASK
2715# if HAS_FLOATINGPOINT_H
2716# include <floatingpoint.h>
2717# endif
ad3a8c67
NC
2718/* Some operating systems have this as a macro, which in turn expands to a comma
2719 expression, and the last sub-expression is something that gets calculated,
2720 and then they have the gall to warn that a value computed is not used. Hence
2721 cast to void. */
2722# define PERL_FPU_INIT (void)fpsetmask(0)
da5fdda8
AC
2723# elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2724# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2725# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2726# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
c77b533b 2727# else
da5fdda8 2728# define PERL_FPU_INIT
c77b533b
JH
2729# endif
2730#endif
b35112e7
CS
2731#ifndef PERL_FPU_PRE_EXEC
2732# define PERL_FPU_PRE_EXEC {
2733# define PERL_FPU_POST_EXEC }
2734#endif
c77b533b 2735
a308b05a
JH
2736/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2737 * We need to reenable the "invalid" trap because otherwise generation
2738 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2739 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2740#ifdef __osf__
2741# include <machine/fpu.h>
2742# define PERL_SYS_FPU_INIT \
2743 STMT_START { \
2744 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2745 signal(SIGFPE, SIG_IGN); \
2746 } STMT_END
2747#endif
94a08944
JH
2748/* In IRIX the default for Flush to Zero bit is true,
2749 * which means that results going below the minimum of normal
2750 * floating points go to zero, instead of going denormal/subnormal.
2751 * This is unlike almost any other system running Perl, so let's clear it.
2752 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2753 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2754 *
2755 * XXX The flush-to-zero behaviour should be a Configure scan.
2756 * To change the behaviour usually requires some system-specific
2757 * incantation, though, like the below. */
2758#ifdef __sgi
2759# include <sys/fpu.h>
2760# define PERL_SYS_FPU_INIT \
2761 STMT_START { \
2762 union fpc_csr csr; \
2763 csr.fc_word = get_fpc_csr(); \
2764 csr.fc_struct.flush = 0; \
2765 set_fpc_csr(csr.fc_word); \
2766 } STMT_END
2767#endif
a308b05a
JH
2768
2769#ifndef PERL_SYS_FPU_INIT
2770# define PERL_SYS_FPU_INIT NOOP
2771#endif
2772
cbec8ebe
DM
2773#ifndef PERL_SYS_INIT3_BODY
2774# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ
2775#endif
2776
eb533572 2777/*
dcccc8ff
KW
2778=head1 Miscellaneous Functions
2779
4ad9e498 2780=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2781Provides system-specific tune up of the C runtime environment necessary to
72d33970 2782run Perl interpreters. This should be called only once, before creating
eb533572
DM
2783any Perl interpreters.
2784
4ad9e498 2785=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2786Provides system-specific tune up of the C runtime environment necessary to
72d33970 2787run Perl interpreters. This should be called only once, before creating
eb533572
DM
2788any Perl interpreters.
2789
2790=for apidoc Am|void|PERL_SYS_TERM|
2791Provides system-specific clean up of the C runtime environment after
72d33970 2792running Perl interpreters. This should be called only once, after
eb533572
DM
2793freeing any remaining Perl interpreters.
2794
2795=cut
2796 */
2797
cbec8ebe
DM
2798#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2799#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2800#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2801
be708cc0
JH
2802#ifndef PERL_WRITE_MSG_TO_CONSOLE
2803# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2804#endif
2805
0f31cffe
GS
2806#ifndef MAXPATHLEN
2807# ifdef PATH_MAX
b990c8b2
JH
2808# ifdef _POSIX_PATH_MAX
2809# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH
2810/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2811 * included the null byte or not. Later amendments of POSIX,
2812 * XPG4, the Austin Group, and the Single UNIX Specification
2813 * all explicitly include the null byte in the PATH_MAX.
2814 * Ditto for _POSIX_PATH_MAX. */
2815# define MAXPATHLEN PATH_MAX
b990c8b2 2816# else
09448d78 2817# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH
2818# endif
2819# else
2820# define MAXPATHLEN (PATH_MAX+1)
2821# endif
0f31cffe 2822# else
d552bce8 2823# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS
2824# endif
2825#endif
2826
c80263a8
SH
2827/* In case Configure was not used (we are using a "canned config"
2828 * such as Win32, or a cross-compilation setup, for example) try going
2829 * by the gcc major and minor versions. One useful URL is
2830 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2831 * but contrary to this information warn_unused_result seems
2832 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD
2833 * Also, when building extensions with an installed perl, this allows
2834 * the user to upgrade gcc and get the right attributes, rather than
2835 * relying on the list generated at Configure time. --AD
c80263a8
SH
2836 * Set these up now otherwise we get confused when some of the <*thread.h>
2837 * includes below indirectly pull in <perlio.h> (which needs to know if we
2838 * have HASATTRIBUTE_FORMAT).
2839 */
2840
4d7c7898 2841#ifndef PERL_MICRO
fc2007d4 2842#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS
2843# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2844# define HASATTRIBUTE_DEPRECATED
2845# endif
c80263a8
SH
2846# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2847# define HASATTRIBUTE_FORMAT
63cdf24b
SH
2848# if defined __MINGW32__
2849# define PRINTF_FORMAT_NULL_OK
2850# endif
c80263a8
SH
2851# endif
2852# if __GNUC__ >= 3 /* 3.0 -> */
2853# define HASATTRIBUTE_MALLOC
2854# endif
2855# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2856# define HASATTRIBUTE_NONNULL
2857# endif
2858# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2859# define HASATTRIBUTE_NORETURN
2860# endif
2861# if __GNUC__ >= 3 /* gcc 3.0 -> */
2862# define HASATTRIBUTE_PURE
2863# endif
42bf5550 2864# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH
2865# define HASATTRIBUTE_UNUSED
2866# endif
d324fe49
AD
2867# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2868# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2869# endif
c80263a8
SH
2870# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2871# define HASATTRIBUTE_WARN_UNUSED_RESULT
2872# endif
2873#endif
00f254e2 2874#endif /* #ifndef PERL_MICRO */
c80263a8 2875
3db8f154 2876/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2877 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS
2878 * this results in many functions being undeclared which bothers C++
2879 * May make sense to have threads after "*ish.h" anyway
2880 */
2881
3baee7cc
JH
2882/* clang Thread Safety Analysis/Annotations/Attributes
2883 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2884 *
bdc795f4 2885 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3baee7cc 2886 * Apple XCode hijacks __clang_major__ and __clang_minor__
bdc795f4
JH
2887 * (6.1 means really clang 3.6), so needs extra hijinks
2888 * (could probably also test the contents of __apple_build_version__).
3baee7cc
JH
2889 */
2890#if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
2891 defined(__clang__) && \
ab0fe36e
DM
2892 !defined(PERL_GLOBAL_STRUCT) && \
2893 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3baee7cc
JH
2894 !defined(SWIG) && \
2895 ((!defined(__apple_build_version__) && \
bdc795f4 2896 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
8412ccf9 2897 (__clang_major__ >= 4))) || \
3baee7cc 2898 (defined(__apple_build_version__) && \
bdc795f4
JH
2899 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
2900 (__clang_major__ >= 7))))
3baee7cc
JH
2901# define PERL_TSA__(x) __attribute__((x))
2902# define PERL_TSA_ACTIVE
2903#else
2904# define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
2905# undef PERL_TSA_ACTIVE
2906#endif
2907
2908/* PERL_TSA_CAPABILITY() is used to annotate typedefs.
2909 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
2910 */
2911#define PERL_TSA_CAPABILITY(x) \
2912 PERL_TSA__(capability(x))
2913
2914/* In the below examples the mutex must be lexically visible, usually
2915 * either as global variables, or as function arguments. */
2916
2917/* PERL_TSA_GUARDED_BY() is used to annotate global variables.
2918 *
2919 * Foo foo PERL_TSA_GUARDED_BY(mutex);
2920 */
2921#define PERL_TSA_GUARDED_BY(x) \
2922 PERL_TSA__(guarded_by(x))
2923
2924/* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
2925 * The data _behind_ the pointer is guarded.
2926 *
2927 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
2928 */
2929#define PERL_TSA_PT_GUARDED_BY(x) \
2930 PERL_TSA__(pt_guarded_by(x))
2931
2932/* PERL_TSA_REQUIRES() is used to annotate functions.
2933 * The caller MUST hold the resource when calling the function.
2934 *
2935 * void Foo() PERL_TSA_REQUIRES(mutex);
2936 */
2937#define PERL_TSA_REQUIRES(x) \
2938 PERL_TSA__(requires_capability(x))
2939
2940/* PERL_TSA_EXCLUDES() is used to annotate functions.
2941 * The caller MUST NOT hold resource when calling the function.
2942 *
2943 * EXCLUDES should be used when the function first acquires
2944 * the resource and then releases it. Use to avoid deadlock.
2945 *
2946 * void Foo() PERL_TSA_EXCLUDES(mutex);
2947 */
2948#define PERL_TSA_EXCLUDES(x) \
2949 PERL_TSA__(locks_excluded(x))
2950
2951/* PERL_TSA_ACQUIRE() is used to annotate functions.
2952 * The caller MUST NOT hold the resource when calling the function,
2953 * and the function will acquire the resource.
2954 *
2955 * void Foo() PERL_TSA_ACQUIRE(mutex);
2956 */
2957#define PERL_TSA_ACQUIRE(x) \
2958 PERL_TSA__(acquire_capability(x))
2959
2960/* PERL_TSA_RELEASE() is used to annotate functions.
2961 * The caller MUST hold the resource when calling the function,
2962 * and the function will release the resource.
2963 *
2964 * void Foo() PERL_TSA_RELEASE(mutex);
2965 */
2966#define PERL_TSA_RELEASE(x) \
2967 PERL_TSA__(release_capability(x))
2968
2969/* PERL_TSA_NO_TSA is used to annotate functions.
2970 * Used when being intentionally unsafe, or when the code is too
2971 * complicated for the analysis. Use sparingly.
2972 *
2973 * void Foo() PERL_TSA_NO_TSA;
2974 */
2975#define PERL_TSA_NO_TSA \
2976 PERL_TSA__(no_thread_safety_analysis)
2977
2978/* There are more annotations/attributes available, see the clang
2979 * documentation for details. */
2980
3db8f154 2981#if defined(USE_ITHREADS)
2986a63f 2982# ifdef NETWARE
da5fdda8
AC
2983# include <nw5thread.h>
2984# elif defined(WIN32)
2985# include <win32thread.h>
2986# elif defined(OS2)
2987# include "os2thread.h"
2988# elif defined(I_MACH_CTHREADS)
2989# include <mach/cthreads.h>
7f3d1cf1
BH
2990typedef cthread_t perl_os_thread;
2991typedef mutex_t perl_mutex;
2992typedef condition_t perl_cond;
2993typedef void * perl_key;
da5fdda8
AC
2994# elif defined(I_PTHREAD) /* Posix threads */
2995# include <pthread.h>
7f3d1cf1 2996typedef pthread_t perl_os_thread;
3baee7cc 2997typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
7f3d1cf1
BH
2998typedef pthread_cond_t perl_cond;
2999typedef pthread_key_t perl_key;
da5fdda8 3000# endif
3db8f154 3001#endif /* USE_ITHREADS */
c5be433b 3002
3baee7cc
JH
3003#ifdef PERL_TSA_ACTIVE
3004/* Since most pthread mutex interfaces have not been annotated, we
3005 * need to have these wrappers. The NO_TSA annotation is quite ugly
3006 * but it cannot be avoided in plain C, unlike in C++, where one could
3007 * e.g. use ACQUIRE() with no arg on a mutex lock method.
3008 *
3009 * The bodies of these wrappers are in util.c
3010 *
3011 * TODO: however, some platforms are starting to get these clang
3012 * thread safety annotations for pthreads, for example FreeBSD.
3013 * Do we need a way to a bypass these wrappers? */
67083b7b 3014EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3baee7cc
JH
3015 PERL_TSA_ACQUIRE(*mutex)
3016 PERL_TSA_NO_TSA;
67083b7b 3017EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3baee7cc
JH
3018 PERL_TSA_RELEASE(*mutex)
3019 PERL_TSA_NO_TSA;
3020#endif
3021
66a93824 3022#if defined(WIN32)
1feb2720 3023# include "win32.h"
c5be433b
GS
3024#endif
3025
2986a63f
JH
3026#ifdef NETWARE
3027# include "netware.h"
3028#endif
3029
e5218da5 3030#define STATUS_UNIX PL_statusvalue
68dc0745 3031#ifdef VMS
6b88bc9c 3032# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM
3033/*
3034 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3035 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM
3036 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3037 * be updated also.
3038 */
3039# include <stsdef.h>
3040# include <ssdef.h>
3041/* Presume this because if VMS changes it, it will require a new
3042 * set of APIs for waiting on children for binary compatibility.
3043 */
3044# define child_offset_bits (8)
3045# ifndef C_FAC_POSIX
3046# define C_FAC_POSIX 0x35A000
3047# endif
3048
3049/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3050 * platform from the existing UNIX or Native status values.
3051 */
3052
37038d91 3053# define STATUS_EXIT \
7a7fd8e0
JM
3054 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3055 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3056
7a7fd8e0 3057
fb38d079
JM
3058/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3059 * exit code and shifts the UNIX value over the correct number of bits to
3060 * be a child status. Usually the number of bits is 8, but that could be
3061 * platform dependent. The NATIVE status code is presumed to have either
3062 * from a child process.
7a7fd8e0
JM
3063 */
3064
fb38d079
JM
3065/* This is complicated. The child processes return a true native VMS
3066 status which must be saved. But there is an assumption in Perl that
3067 the UNIX child status has some relationship to errno values, so
00f254e2 3068 Perl tries to translate it to text in some of the tests.
fb38d079
JM
3069 In order to get the string translation correct, for the error, errno
3070 must be EVMSERR, but that generates a different text message
3071 than what the test programs are expecting. So an errno value must
3072 be derived from the native status value when an error occurs.
3073 That will hide the true native status message. With this version of
3074 perl, the true native child status can always be retrieved so that
3075 is not a problem. But in this case, Pl_statusvalue and errno may
3076 have different values in them.
3077 */
7a7fd8e0 3078
fb38d079 3079# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3080 STMT_START { \
2fbb330f
JM
3081 I32 evalue = (I32)n; \
3082 if (evalue == EVMSERR) { \
3083 PL_statusvalue_vms = vaxc$errno; \
3084 PL_statusvalue = evalue; \
7a7fd8e0 3085 } else { \
2fbb330f 3086 PL_statusvalue_vms = evalue; \
fb38d079 3087 if (evalue == -1) { \
3280af22 3088 PL_statusvalue = -1; \
7a7fd8e0
JM
3089 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3090 } else \
fb38d079 3091 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3092 set_vaxc_errno(evalue); \
fb38d079
JM
3093 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3094 set_errno(EVMSERR); \
3095 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3096 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3097 } \
68dc0745 3098 } STMT_END
7a7fd8e0 3099
68dc0745 3100# ifdef VMSISH_STATUS
e5218da5 3101# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3102# else
e5218da5 3103# define STATUS_CURRENT STATUS_UNIX
68dc0745 3104# endif
7a7fd8e0
JM
3105
3106 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3107 * the NATIVE status to an equivalent value. Can not be used to translate
3108 * exit code values as exit code values are not guaranteed to have any
3109 * relationship at all to errno values.
3110 * This is used when Perl is forcing errno to have a specific value.
3111 */
e5218da5 3112# define STATUS_UNIX_SET(n) \
68dc0745 3113 STMT_START { \
7a7fd8e0 3114 I32 evalue = (I32)n; \
0968cdad 3115 PL_statusvalue = evalue; \
3280af22 3116 if (PL_statusvalue != -1) { \
0968cdad
JM
3117 if (PL_statusvalue != EVMSERR) { \
3118 PL_statusvalue &= 0xFFFF; \
3119 if (MY_POSIX_EXIT) \
3120 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3121 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3122 } \
3123 else { \
3124 PL_statusvalue_vms = vaxc$errno; \
3125 } \
68dc0745 3126 } \
0968cdad
JM
3127 else PL_statusvalue_vms = SS$_ABORT; \
3128 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM
3129 } STMT_END
3130
3131 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM
3132 * the NATIVE error status based on it.
3133 *
3134 * When in the default mode to comply with the Perl VMS documentation,
3135 * 0 is a success and any other code sets the NATIVE status to a failure
3136 * code of SS$_ABORT.
fb38d079
JM
3137 *
3138 * In the new POSIX EXIT mode, native status will be set so that the
3139 * actual exit code will can be retrieved by the calling program or
3140 * shell.
3141 *
3142 * If the exit code is not clearly a UNIX parent or child exit status,
3143 * it will be passed through as a VMS status.
7a7fd8e0
JM
3144 */
3145
fb38d079 3146# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM
3147 STMT_START { \
3148 I32 evalue = (I32)n; \
3149 PL_statusvalue = evalue; \
e08e1e1d
JM
3150 if (MY_POSIX_EXIT) { \
3151 if (evalue <= 0xFF00) { \
3152 if (evalue > 0xFF) \
3153 evalue = (evalue >> child_offset_bits) & 0xFF; \
3154 PL_statusvalue_vms = \
3155 (C_FAC_POSIX | (evalue << 3 ) | \
3156 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3157 } else /* forgive them Perl, for they have sinned */ \
3158 PL_statusvalue_vms = evalue; \
3159 } else { \
3160 if (evalue == 0) \
3161 PL_statusvalue_vms = SS$_NORMAL; \
3162 else if (evalue <= 0xFF00) \
3163 PL_statusvalue_vms = SS$_ABORT; \
3164 else { /* forgive them Perl, for they have sinned */ \
3165 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3166 else PL_statusvalue_vms = vaxc$errno; \
3167 /* And obviously used a VMS status value instead of UNIX */ \
3168 PL_statusvalue = EVMSERR; \
3169 } \
3170 set_vaxc_errno(PL_statusvalue_vms); \
3171 } \
68dc0745 3172 } STMT_END
fb38d079 3173
e08e1e1d 3174
6ac6a52b
JM
3175 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3176 * and sets the NATIVE error status based on it. This special case
3177 * is needed to maintain compatibility with past VMS behavior.
3178 *
3179 * In the default mode on VMS, this number is passed through as
3180 * both the NATIVE and UNIX status. Which makes it different
3181 * that the STATUS_UNIX_EXIT_SET.
3182 *
3183 * In the new POSIX EXIT mode, native status will be set so that the
3184 * actual exit code will can be retrieved by the calling program or
3185 * shell.
3186 *
1a3aec58
JM
3187 * A POSIX exit code is from 0 to 255. If the exit code is higher
3188 * than this, it needs to be assumed that it is a VMS exit code and
3189 * passed through.
6ac6a52b
JM
3190 */
3191
3192# define STATUS_EXIT_SET(n) \
3193 STMT_START { \
3194 I32 evalue = (I32)n; \
3195 PL_statusvalue = evalue; \
3196 if (MY_POSIX_EXIT) \
1a3aec58
JM
3197 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3198 PL_statusvalue_vms = \
3199 (C_FAC_POSIX | (evalue << 3 ) | \
3200 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM
3201 else \
3202 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3203 set_vaxc_errno(PL_statusvalue_vms); \
3204 } STMT_END
3205
fb38d079
JM
3206
3207 /* This macro forces a success status */
7a7fd8e0
JM
3208# define STATUS_ALL_SUCCESS \
3209 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM
3210
3211 /* This macro forces a failure status */
7a7fd8e0
JM
3212# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3213 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3214 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3215
738ab09f
AB
3216#elif defined(__amigaos4__)
3217 /* A somewhat experimental attempt to simulate posix return code values */
3218# define STATUS_NATIVE PL_statusvalue_posix
3219# define STATUS_NATIVE_CHILD_SET(n) \
3220 STMT_START { \
3221 PL_statusvalue_posix = (n); \
3222 if (PL_statusvalue_posix < 0) { \
3223 PL_statusvalue = -1; \
3224 } \
3225 else { \
3226 PL_statusvalue = n << 8; \
3227 } \
3228 } STMT_END
3229# define STATUS_UNIX_SET(n) \
3230 STMT_START { \
3231 PL_statusvalue = (n); \
3232 if (PL_statusvalue != -1) \
3233 PL_statusvalue &= 0xFFFF; \
3234 } STMT_END
3235# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3236# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3237# define STATUS_CURRENT STATUS_UNIX
3238# define STATUS_EXIT STATUS_UNIX
3239# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3240# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3241
68dc0745 3242#else
e5218da5 3243# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3244# if defined(WCOREDUMP)
37038d91 3245# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3246 STMT_START { \
3247 PL_statusvalue_posix = (n); \
3248 if (PL_statusvalue_posix == -1) \
3249 PL_statusvalue = -1; \
3250 else { \
3251 PL_statusvalue = \
3252 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3253 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3254 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3255 } \
3256 } STMT_END
3257# elif defined(WIFEXITED)
37038d91 3258# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3259 STMT_START { \
3260 PL_statusvalue_posix = (n); \
3261 if (PL_statusvalue_posix == -1) \
3262 PL_statusvalue = -1; \
3263 else { \
3264 PL_statusvalue = \
3265 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3266 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3267 } \
3268 } STMT_END
3269# else
37038d91 3270# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA
3271 STMT_START { \
3272 PL_statusvalue_posix = (n); \
3273 if (PL_statusvalue_posix == -1) \
3274 PL_statusvalue = -1; \
3275 else { \
3276 PL_statusvalue = \
3277 PL_statusvalue_posix & 0xFFFF; \
3278 } \
3279 } STMT_END
3280# endif
3281# define STATUS_UNIX_SET(n) \
68dc0745 3282 STMT_START { \
3280af22
NIS
3283 PL_statusvalue = (n); \
3284 if (PL_statusvalue != -1) \
3285 PL_statusvalue &= 0xFFFF; \
68dc0745 3286 } STMT_END
7a7fd8e0 3287# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3288# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3289# define STATUS_CURRENT STATUS_UNIX
37038d91 3290# define STATUS_EXIT STATUS_UNIX
e5218da5
GA
3291# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3292# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745
PP
3293#endif
3294
cc3604b1
GS
3295/* flags in PL_exit_flags for nature of exit() */
3296#define PERL_EXIT_EXPECTED 0x01
31d77e54 3297#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM
3298#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3299#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3300
b79b76e0 3301#ifndef PERL_CORE
a7cb1f99 3302/* format to use for version numbers in file/directory names */
273cf8d1 3303/* XXX move to Configure? */
b79b76e0
NC
3304/* This was only ever used for the current version, and that can be done at
3305 compile time, as PERL_FS_VERSION, so should we just delete it? */
3306# ifndef PERL_FS_VER_FMT
3307# define PERL_FS_VER_FMT "%d.%d.%d"
3308# endif
3309#endif
3310
3311#ifndef PERL_FS_VERSION
3312# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS
3313#endif
3314
45bc9206 3315/* This defines a way to flush all output buffers. This may be a
76549fef
JH
3316 * performance issue, so we allow people to disable it. Also, if
3317 * we are using stdio, there are broken implementations of fflush(NULL)
3318 * out there, Solaris being the most prominent.
45bc9206
GS
3319 */
3320#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3321# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3322# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
da5fdda8
AC
3323# elif defined(FFLUSH_ALL)
3324# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
767df6a1 3325# else
da5fdda8 3326# define PERL_FLUSHALL_FOR_CHILD NOOP
66fe083f 3327# endif
45bc9206
GS
3328#endif
3329
7766f137
GS
3330#ifndef PERL_WAIT_FOR_CHILDREN
3331# define PERL_WAIT_FOR_CHILDREN NOOP
3332#endif
3333
ba869deb 3334/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS
3335#ifndef PERL_SET_INTERP
3336# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3337#endif
3338
3339#ifndef PERL_GET_INTERP
3340# define PERL_GET_INTERP (PL_curinterp)
3341#endif
3342
54aff467 3343#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3344# ifdef MULTIPLICITY
ba869deb 3345# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3346# endif
ba869deb
GS
3347# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3348#endif
3349
00f254e2 3350/*
8896765a 3351 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3352 All that is required is that the perl source does not
00f254e2
KW
3353 use "%-p" or "%-<number>p" or "%<number>p" formats.
3354 These formats will still work in perl code.
486ec47a 3355 See comments in sv.c for further details.
8896765a 3356
8896765a 3357 Robin Barker 2005-07-14
f46d31f2 3358
00f254e2 3359 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3360*/
8896765a
RB
3361
3362#ifndef SVf_
63ce7bf0 3363# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS
3364#endif
3365
8896765a 3366#ifndef SVf
104abab4 3367# define SVf "-p"
d2560b70
RB
3368#endif
3369
014ead4b 3370#ifndef SVf32
8896765a 3371# define SVf32 SVf_(32)
014ead4b
RB
3372#endif
3373
3374#ifndef SVf256
8896765a
RB
3375# define SVf256 SVf_(256)
3376#endif
3377
be2597df
MHM
3378#define SVfARG(p) ((void*)(p))
3379
20023040
FC
3380#ifndef HEKf
3381# define HEKf "2p"
3382#endif
3383
b8fa5213
FC
3384/* Not ideal, but we cannot easily include a number in an already-numeric
3385 * format sequence. */
3386#ifndef HEKf256
3387# define HEKf256 "3p"
3388#endif
3389
20023040
FC
3390#define HEKfARG(p) ((void*)(p))
3391
b17a0679
FC
3392/* Takes three arguments: is_utf8, length, str */
3393#ifndef UTF8f
61608bb7 3394# define UTF8f "d%" UVuf "%4p"
b17a0679
FC
3395#endif
3396#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3397
0f94cb1f
FC
3398#define PNf UTF8f
3399#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3400
f46d31f2 3401#ifdef PERL_CORE
486ec47a 3402/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98 3403# undef UVf
da5fdda8
AC
3404#elif !defined(UVf)
3405# define UVf UVuf
d2560b70
RB
3406#endif
3407
fcdf39cf
RGS
3408#ifdef HASATTRIBUTE_DEPRECATED
3409# define __attribute__deprecated__ __attribute__((deprecated))
3410#endif
0dbb1585
AL
3411#ifdef HASATTRIBUTE_FORMAT
3412# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3413#endif
3414#ifdef HASATTRIBUTE_MALLOC
77785eea 3415# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3416#endif
0dbb1585 3417#ifdef HASATTRIBUTE_NONNULL
abb2c242 3418# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3419#endif
0dbb1585 3420#ifdef HASATTRIBUTE_NORETURN
abb2c242 3421# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3422#endif
0dbb1585 3423#ifdef HASATTRIBUTE_PURE
abb2c242 3424# define __attribute__pure__ __attribute__((pure))
f22be1b8 3425#endif
0dbb1585
AL
3426#ifdef HASATTRIBUTE_UNUSED
3427# define __attribute__unused__ __attribute__((unused))
3428#endif
3429#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3430# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH
3431#endif
3432
0dbb1585 3433/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS
3434#ifndef __attribute__deprecated__
3435# define __attribute__deprecated__
3436#endif
0dbb1585
AL
3437#ifndef __attribute__format__
3438# define __attribute__format__(x,y,z)
3439#endif
f22be1b8 3440#ifndef __attribute__malloc__
abb2c242 3441# define __attribute__malloc__
f22be1b8
JH
3442#endif
3443#ifndef __attribute__nonnull__
abb2c242 3444# define __attribute__nonnull__(a)
f22be1b8
JH
3445#endif
3446#ifndef __attribute__noreturn__
abb2c242 3447# define __attribute__noreturn__
f22be1b8
JH
3448#endif
3449#ifndef __attribute__pure__
abb2c242 3450# define __attribute__pure__
f22be1b8 3451#endif
0dbb1585
AL
3452#ifndef __attribute__unused__
3453# define __attribute__unused__
3454#endif
f22be1b8 3455#ifndef __attribute__warn_unused_result__
abb2c242
JH
3456# define __attribute__warn_unused_result__
3457#endif
3458
6ff2ec7d
AC
3459#if !defined(DEBUGGING) && !defined(NDEBUG)
3460# define NDEBUG 1
cd13e623 3461#endif
6ff2ec7d 3462#include <assert.h>
cd13e623 3463
0dbb1585
AL
3464/* For functions that are marked as __attribute__noreturn__, it's not
3465 appropriate to call return. In either case, include the lint directive.
3466 */
3467#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3468# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3469#else
bc3d2941 3470# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH
3471#endif
3472
cdfeb707
RB
3473/* Some OS warn on NULL format to printf */
3474#ifdef PRINTF_FORMAT_NULL_OK
3475# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3476#else
00f254e2 3477# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB
3478#endif
3479
635aebb7 3480#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL
3481# define EXPECT(expr,val) __builtin_expect(expr,val)
3482#else
3483# define EXPECT(expr,val) (expr)
3484#endif
6d5abc62
NC
3485#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3486#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL
3487#ifdef HAS_BUILTIN_CHOOSE_EXPR
3488/* placeholder */
3489#endif
b37c2d43 3490
a36ca6de 3491/* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
5074d4c5
LM
3492 time invariants. That is, their argument must be a constant expression that
3493 can be verified by the compiler. This expression can contain anything that's
3494 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3495 the expression evaluates to 0, compilation fails.
3496 Because they generate no runtime code (i.e. their use is "free"), they're
3497 always active, even under non-DEBUGGING builds.
a36ca6de 3498 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
5074d4c5
LM
3499 file scope (outside of any function).
3500 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3501 function.
3502*/
7ea096df 3503#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610 3504/* static_assert is a macro defined in <assert.h> in C11 or a compiler
a36ca6de
LM
3505 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3506 matter what <assert.h> says.
6d59e610 3507*/
a36ca6de 3508# define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
6d59e610
LM
3509#else
3510/* We use a bit-field instead of an array because gcc accepts
3511 'typedef char x[n]' where n is not a compile-time constant.
3512 We want to enforce constantness.
3513*/
3514# define STATIC_ASSERT_2(COND, SUFFIX) \
3515 typedef struct { \
3516 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3517 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3518# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
a36ca6de 3519# define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
6d59e610
LM
3520#endif
3521/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3522 error (static_assert is a declaration, and only statements can have labels).
3523*/
21aae866 3524#define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
ae103e09
DD
3525
3526#ifndef __has_builtin
3527# define __has_builtin(x) 0 /* not a clang style compiler */
3528#endif
3529
3530/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3531 hint to a compiler about a statement of fact in a function call free
3532 expression, which allows the compiler to generate better machine code.
3533 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3534 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3535 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD
3536 intrinsic function, see its documents for more details.
3537*/
3538
3539#ifndef DEBUGGING
3540# if __has_builtin(__builtin_unreachable) \
d1020b40 3541 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD
3542# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3543# elif defined(_MSC_VER)
3544# define ASSUME(x) __assume(x)
3545# elif defined(__ARMCC_VERSION) /* untested */
3546# define ASSUME(x) __promise(x)
3547# else
3548/* a random compiler might define assert to its own special optimization token
3549 so pass it through to C lib as a last resort */
3550# define ASSUME(x) assert(x)
3551# endif
3552#else
3553# define ASSUME(x) assert(x)
3554#endif
3555
dbc47c6f
KW
3556#if defined(__sun) /* ASSUME() generates warnings on Solaris */
3557# define NOT_REACHED
2145f4b6
LM
3558#elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3559 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
41bd5b11 3560# define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END
dbc47c6f 3561#else
41bd5b11 3562# define NOT_REACHED ASSUME(!"UNREACHABLE")
dbc47c6f 3563#endif
ae103e09 3564
3fc1aec6
PP
3565/* Some unistd.h's give a prototype for pause() even though
3566 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3567 below to be rejected by the compiler. Sigh.
3fc1aec6
PP
3568*/
3569#ifdef HAS_PAUSE
3570#define Pause pause
3571#else
3572#define Pause() sleep((32767<<16)+32767)
748a9306
LW
3573#endif
3574
3575#ifndef IOCPARM_LEN
3576# ifdef IOCPARM_MASK
61f1c44b 3577 /* on BSDish systems we're safe */
748a9306 3578# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
da5fdda8 3579# elif defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0 3580 /* on Linux systems we're safe; except when we're not [perl #38223] */
da5fdda8
AC
3581# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3582# else
748a9306 3583 /* otherwise guess at what's safe */
da5fdda8 3584# define IOCPARM_LEN(x) 256
748a9306 3585# endif
a0d0e21e
LW
3586#endif
3587
1761cee5 3588#if defined(__CYGWIN__)
521e0776
GS
3589/* USEMYBINMODE
3590 * This symbol, if defined, indicates that the program should
16fe6d59 3591 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS
3592 * that a file is in "binary" mode -- that is, that no translation
3593 * of bytes occurs on read or write operations.
3594 */
36894f0b 3595# define USEMYBINMODE /**/
77a40698 3596# include <io.h> /* for setmode() prototype */
16fe6d59 3597# define my_binmode(fp, iotype, mode) \
8298454c 3598 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
5aabfad6
PP
3599#endif
3600
88d10794
JH
3601#ifdef __CYGWIN__
3602void init_os_extras(void);
3603#endif
3604
cea2e8a9
GS
3605#ifdef UNION_ANY_DEFINITION
3606UNION_ANY_DEFINITION;
3607#else
3608union any {
3609 void* any_ptr;
c9728782
DM
3610 SV* any_sv;
3611 SV** any_svp;
3612 GV* any_gv;
3613 AV* any_av;
3614 HV* any_hv;
6ffb8402 3615 OP* any_op;
c9728782
DM
3616 char* any_pv;
3617 char** any_pvp;
cea2e8a9 3618 I32 any_i32;
ae103e09 3619 U32 any_u32;
cea2e8a9 3620 IV any_iv;
c6bf6a65 3621 UV any_uv;
cea2e8a9 3622 long any_long;
9febdf04 3623 bool any_bool;
c76ac1ee 3624 void (*any_dptr) (void*);
acfe0abc 3625 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS
3626};
3627#endif
3628
acfe0abc 3629typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS
3630
3631#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM
3632#define FILTER_DATA(idx) \
3633 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3634#define FILTER_ISREADER(idx) \
3635 (PL_parser && PL_parser->rsfp_filters \
3636 && idx >= AvFILLp(PL_parser->rsfp_filters))
3637#define PERL_FILTER_EXISTS(i) \
3638 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3639 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3640
c5078cac
JH
3641#if defined(_AIX) && !defined(_AIX43)
3642#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3643/* We cannot include <crypt.h> to get the struct crypt_data
3644 * because of setkey prototype problems when threading */
3645typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3646 /* From OSF, Not needed in AIX
3647 char C[28], D[28];
3648 */
3649 char E[48];
3650 char KS[16][48];
3651 char block[66];
3652 char iobuf[16];
3653} CRYPTD;
3654#endif /* threading */
3655#endif /* AIX */
3656
fc6bde6f
DD
3657#ifndef PERL_CALLCONV
3658# ifdef __cplusplus
3659# define PERL_CALLCONV extern "C"
3660# else
3661# define PERL_CALLCONV
3662# endif
3663#endif
3664#ifndef PERL_CALLCONV_NO_RET
3665# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3666#endif
3667
3668/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3669 dont have a noreturn as a declaration specifier
3670*/
3671#ifndef PERL_STATIC_NO_RET
3672# define PERL_STATIC_NO_RET STATIC
3673#endif
3674/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3675 builds that dont have a noreturn as a declaration specifier
3676*/
3677#ifndef PERL_STATIC_INLINE_NO_RET
3678# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3679#endif
3680
e37778c2 3681#if !defined(OS2)
2c2d71f5
JH
3682# include "iperlsys.h"
3683#endif
504f80c1 3684
9c12f1e5 3685#ifdef __LIBCATAMOUNT__
00f254e2 3686#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS
3687#undef HAS_GROUP
3688#define FAKE_BIT_BUCKET
3689#endif
3690
d10dc2ae 3691/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
1a237f4f
YO
3692 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3693 * Configure, despite their names being similar to other defines like
3694 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3695 * hashes. Therefore to enable/disable the hash randomisation defines
3696 * use the Configure -Accflags=... instead. */
3697#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
4546b9e6 3698# define USE_HASH_SEED
504f80c1
JH
3699#endif
3700
598921a7
NC
3701#include "perly.h"
3702
598921a7 3703
654eccd5
JD
3704/* macros to define bit-fields in structs. */
3705#ifndef PERL_BITFIELD8
3706# define PERL_BITFIELD8 unsigned
3707#endif
3708#ifndef PERL_BITFIELD16
3709# define PERL_BITFIELD16 unsigned
3710#endif
3711#ifndef PERL_BITFIELD32
3712# define PERL_BITFIELD32 unsigned
3713#endif
3714
79072805 3715#include "sv.h"
288b8c02 3716#include "regexp.h"
378cc40b