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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW		 6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
85e6fe83
LW		 11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
760ac839
LW		 14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
760ac839
LW		 21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
12ae5dfc
JH		 26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
7dc3eb73
JH		 33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
9267464d
JH		 37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
86a3cabf
JH		 40#endif
41
2c2d71f5
JH		 42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
ac6bedea
JH		 45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
6f4183fe
GS		 51# define MULTIPLICITY
52# endif
53#endif
54
27da23d5
JH		 55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
27da23d5
JH		 61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
97aff369
JH		 67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
026fd48b
GH		 73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
27da23d5
JH		 79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
27da23d5
JH		 86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
739a0b84
NC		 92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
27da23d5
JH		 94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
10bc17b6
JH		 103# define USE_REENTRANT_API
104#endif
105
ac6bedea
JH		 106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
9ea40801
SH		 108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
cf5a8da6
MHM		 113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
17a6c8e3
AD		 126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
27da23d5
JH		 138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
27da23d5
JH		 143# else
144# define PERL_GET_VARS() PL_VarsPtr
145# endif
146# endif
147#endif
148
f0e5c859
DD		 149/* this used to be off by default, now its on, see perlio.h */
150#define PERLIO_FUNCS_CONST
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
27da23d5
JH		 153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
3db8f154
MB		 161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
27da23d5
JH		 172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
894356b3
GS		 181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
4373e329
AL		 184# define pTHX_5 6
185# define pTHX_6 7
a3b680e6
AL		 186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
e8dda941
JD		 190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
c5be433b
GS		 195#endif
196
76e3520e 197#define STATIC static
16c91539
BM		 198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
1d583055
GS		 209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
52a21eb3
DM		 224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
f9f4320a
YO		 226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
f8149455
YO		 230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
fc6bde6f 234 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
2fdbfb4d
AB		 241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
192b9cd1
AB		 247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
192b9cd1
AB		 250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
192b9cd1
AB		 253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
192b9cd1
AB		 256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
192b9cd1
AB		 259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
192b9cd1
AB		 262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
192b9cd1
AB		 265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
192b9cd1
AB		 268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
192b9cd1
AB		 271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
f8149455
YO		 280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
a20207d7
YO		 289
290
5ba4cab2
SH		 291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
SH		 297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
5b2bd0a5
AMS		 308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
f7a9299a 312# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
349b520e
DM		 319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
a730e3f2
JH		 321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c
AL		 330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
96a5add6
AL		 337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
24e7ff4e
JH		 342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
b469f1e0
JH		 356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
ffea512f
JH		 366 *
367 * But sometimes you just want to ignore the return value, e.g. on
b469f1e0
JH		 368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
b469f1e0
JH		 371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
b469f1e0
JH		 375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
ffea512f
JH		 379 */
380#ifndef PERL_UNUSED_RESULT
b469f1e0
JH		 381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
ffea512f
JH		 383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
b56aac20
DM		 388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f
JH		 399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
6ab56f1e
JH		 406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
c1d6452f
JH		 408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
b56aac20
DM		 411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
c1d6452f
JH		 415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
b56aac20
DM		 419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
8ce6f80a
JH		 421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
b56aac20
DM		 423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
bafdc25d
NC		 426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
7db66e12
CB		 431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
e8dda941
JD		 439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
0cb96387
GS		 441# define pTHX void
442# define pTHX_
0cb96387
GS		 443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
0cb96387
GS		 446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
894356b3
GS		 448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
3d42dc86
RGS		 452# define pTHX_5 5
453# define pTHX_6 6
a3b680e6
AL		 454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
0cb96387
GS		 458#endif
459
27da23d5
JH		 460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
b4f7f263
GS		 464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS		 466# define pTHXo pTHX
467# define pTHXo_ pTHX_
0cb96387
GS		 468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
0cb96387
GS		 472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
GS		 477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
1de7c2ac
GS		 482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
27da23d5
JH		 486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH		 492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS		 497#endif
498
5b692037
JH		 499#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
500# ifndef PERL_USE_GCC_BRACE_GROUPS
501# define PERL_USE_GCC_BRACE_GROUPS
502# endif
503#endif
504
728e2803 505/*
506 * STMT_START { statements; } STMT_END;
507 * can be used as a single statement, as in
508 * if (x) STMT_START { ... } STMT_END; else ...
509 *
510 * Trying to select a version that gives no warnings...
511 */
512#if !(defined(STMT_START) && defined(STMT_END))
5b692037 513# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 514# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803 515# define STMT_END )
516# else
728e2803 517# define STMT_START do
518# define STMT_END while (0)
728e2803 519# endif
520#endif
521
d6f9c181
JH		 522#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
523# define BYTEORDER 0x1234
79072805
LW		 524#endif
525
526/* Overall memory policy? */
527#ifndef CONSERVATIVE
528# define LIBERAL 1
529#endif
530
8ada0baa
JH		 531#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
532#define ASCIIish
533#else
534#undef ASCIIish
535#endif
536
79072805
LW		 537/*
538 * The following contortions are brought to you on behalf of all the
539 * standards, semi-standards, de facto standards, not-so-de-facto standards
540 * of the world, as well as all the other botches anyone ever thought of.
541 * The basic theory is that if we work hard enough here, the rest of the
542 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
543 */
ac58e20f 544
ee0007ab 545/* define this once if either system, instead of cluttering up the src */
7c458fae 546#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW		 547#define DOSISH 1
548#endif
549
739a0b84 550#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW		 551# define STANDARD_C 1
552#endif
553
8d87852b 554#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745 555# define DONT_DECLARE_STD 1
556#endif
557
352d5a3a 558#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 559# define VOL volatile
663a0e37 560#else
79072805 561# define VOL
663a0e37
LW		 562#endif
563
284167a5
S		 564/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
565 * you get a perl without taint support, but doubtlessly with a lesser
566 * degree of support. Do not do so unless you know exactly what it means
567 * technically, have a good reason to do so, and know exactly how the
568 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
569 * a potential security risk due to flat out ignoring the security-relevant
570 * taint flags. This being said, a perl without taint support compiled in
571 * has marginal run-time performance benefits.
572 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
573 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
574 * silently ignores -t/-T instead of throwing an exception.
053a3618
S		 575 *
576 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 577 * voids your nonexistent warranty!
284167a5 578 */
dc6d7f5c 579#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
S		 580# define NO_TAINT_SUPPORT 1
581#endif
582
583/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
584 * operations into no-ops for a very modest speed-up. Enable only if you
585 * know what you're doing: tests and CPAN modules' tests are bound to fail.
586 */
dc6d7f5c 587#ifdef NO_TAINT_SUPPORT
284167a5
S		 588# define TAINT NOOP
589# define TAINT_NOT NOOP
590# define TAINT_IF(c) NOOP
591# define TAINT_ENV() NOOP
592# define TAINT_PROPER(s) NOOP
593# define TAINT_set(s) NOOP
594# define TAINT_get 0
595# define TAINTING_get 0
596# define TAINTING_set(s) NOOP
597# define TAINT_WARN_get 0
598# define TAINT_WARN_set(s) NOOP
599#else
600# define TAINT (PL_tainted = TRUE)
601# define TAINT_NOT (PL_tainted = FALSE)
2439e033
S		 602# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
603# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
604# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
S		 605# define TAINT_set(s) (PL_tainted = (s))
606# define TAINT_get (PL_tainted)
607# define TAINTING_get (PL_tainting)
608# define TAINTING_set(s) (PL_tainting = (s))
609# define TAINT_WARN_get (PL_taint_warn)
610# define TAINT_WARN_set(s) (PL_taint_warn = (s))
611#endif
a687059c 612
20be6587
DM		 613/* flags used internally only within pp_subst and pp_substcont */
614#ifdef PERL_CORE
615# define SUBST_TAINT_STR 1 /* string tainted */
616# define SUBST_TAINT_PAT 2 /* pattern tainted */
617# define SUBST_TAINT_REPL 4 /* replacement tainted */
618# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
619# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
620#endif
621
d460ef45 622/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de 623 defines move there? If so, I could simplify this a lot. --AD 9/96.
624*/
625/* Process group stuff changed from traditional BSD to POSIX.
626 perlfunc.pod documents the traditional BSD-style syntax, so we'll
627 try to preserve that, if possible.
628*/
629#ifdef HAS_SETPGID
630# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 631#else
a6e633de 632# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
633# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
634# else
635# ifdef HAS_SETPGRP2 /* DG/UX */
636# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
637# endif
638# endif
639#endif
640#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
641# define HAS_SETPGRP /* Well, effectively it does . . . */
642#endif
643
644/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
645 our life easier :-) so we'll try it.
646*/
647#ifdef HAS_GETPGID
648# define BSD_GETPGRP(pid) getpgid((pid))
649#else
650# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
651# define BSD_GETPGRP(pid) getpgrp((pid))
652# else
653# ifdef HAS_GETPGRP2 /* DG/UX */
654# define BSD_GETPGRP(pid) getpgrp2((pid))
655# endif
656# endif
657#endif
658#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
659# define HAS_GETPGRP /* Well, effectively it does . . . */
660#endif
661
d460ef45 662/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de 663 have different behaviors, but perl.h used to define USE_BSDPGRP
664 (prior to 5.003_05) so some extension might depend on it.
665*/
666#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
667# ifndef USE_BSDPGRP
668# define USE_BSDPGRP
669# endif
663a0e37
LW		 670#endif
671
486ec47a 672/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH		 673 pthread.h must be included before all other header files.
674*/
3db8f154 675#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH		 676# include <pthread.h>
677#endif
678
58ab9e8b 679#include <sys/types.h>
663a0e37 680
760ac839
LW		 681#ifdef __cplusplus
682# ifndef I_STDARG
683# define I_STDARG 1
684# endif
685#endif
686
c7925a5e
DD		 687/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
688 which is included from stdarg.h. Bad definition not present in SD 2008
689 SDK headers. wince.h is not yet included, so we cant fix this from there
690 since by then MB_CUR_MAX will be defined from stdlib.h.
691 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
692 since cewchar.h can't be included this early */
693#if defined(UNDER_CE) && (_MSC_VER < 1300)
694# define MB_CUR_MAX 1
695#endif
760ac839
LW		 696#ifdef I_STDARG
697# include <stdarg.h>
698#else
699# ifdef I_VARARGS
700# include <varargs.h>
701# endif
702#endif
703
27db2737
JH		 704#ifdef I_STDINT
705# include <stdint.h>
706#endif
707
fe14fcc3 708#include <ctype.h>
a0d0e21e
LW		 709
710#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
711#undef METHOD
a0d0e21e
LW		 712#endif
713
12ae5dfc
JH		 714#ifdef PERL_MICRO
715# define NO_LOCALE
716#endif
717
4633a7c4 718#ifdef I_LOCALE
36477c24 719# include <locale.h>
4633a7c4
LW		 720#endif
721
36477c24 722#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
723# define USE_LOCALE
ccd65d51
KW		 724# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
725 capability */
36477c24 726# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
727 && defined(HAS_STRXFRM)
728# define USE_LOCALE_COLLATE
729# endif
730# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
731# define USE_LOCALE_CTYPE
732# endif
733# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
734# define USE_LOCALE_NUMERIC
735# endif
fa9b773e
KW		 736# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
737# define USE_LOCALE_MESSAGES
738# endif
739# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
740# define USE_LOCALE_MONETARY
741# endif
56e45410
KW		 742# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
743# define USE_LOCALE_TIME
744# endif
b385bb4d
KW		 745# ifndef WIN32 /* No wrapper except on Windows */
746# define my_setlocale(a,b) setlocale(a,b)
747# endif
36477c24 748#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 749
3e669301
KW		 750/* Is $^ENCODING set, or are we under the encoding pragma? */
751#define IN_ENCODING UNLIKELY(PL_encoding \
752 || (PL_lex_encoding && _get_encoding() != NULL))
47e13f24 753
fe14fcc3 754#include <setjmp.h>
79072805 755
a0d0e21e 756#ifdef I_SYS_PARAM
79072805
LW		 757# ifdef PARAM_NEEDS_TYPES
758# include <sys/types.h>
759# endif
760# include <sys/param.h>
352d5a3a 761#endif
79072805 762
ce3470dc
AD		 763/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
764 value something like 199306. This may be useful if no more-specific
765 feature test is available.
766*/
767#if defined(BSD)
768# ifndef BSDish
769# define BSDish
770# endif
771#endif
772
79072805 773/* Use all the "standard" definitions? */
a0d0e21e 774#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 775# include <stdlib.h>
ff68c719 776#endif
03a14243 777
3f270f98
JH		 778/* If this causes problems, set i_unistd=undef in the hint file. */
779#ifdef I_UNISTD
780# include <unistd.h>
781#endif
782
de8ca8af
NT		 783/* for WCOREDUMP */
784#ifdef I_SYS_WAIT
785# include <sys/wait.h>
786#endif
787
9969cdde 788#ifdef __SYMBIAN32__
27da23d5
JH		 789# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
790#endif
791
21e89b5f 792#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 793EXTERN_C int syscall(int, ...);
2ef53570
JH		 794#endif
795
21e89b5f 796#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 797EXTERN_C int usleep(unsigned int);
2ef53570
JH		 798#endif
799
1109a392
MHM		 800#ifdef PERL_CORE
801
802/* macros for correct constant construction */
803# if INTSIZE >= 2
804# define U16_CONST(x) ((U16)x##U)
805# else
806# define U16_CONST(x) ((U16)x##UL)
807# endif
808
809# if INTSIZE >= 4
810# define U32_CONST(x) ((U32)x##U)
811# else
812# define U32_CONST(x) ((U32)x##UL)
813# endif
814
815# ifdef HAS_QUAD
816# if INTSIZE >= 8
817# define U64_CONST(x) ((U64)x##U)
818# elif LONGSIZE >= 8
819# define U64_CONST(x) ((U64)x##UL)
820# elif QUADKIND == QUAD_IS_LONG_LONG
821# define U64_CONST(x) ((U64)x##ULL)
52865553
SH		 822# elif QUADKIND == QUAD_IS___INT64
823# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM		 824# else /* best guess we can make */
825# define U64_CONST(x) ((U64)x##UL)
826# endif
827# endif
828
829/* byte-swapping functions for big-/little-endian conversion */
830# define _swab_16_(x) ((U16)( \
831 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
832 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
833
834# define _swab_32_(x) ((U32)( \
835 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
836 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
837 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
838 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
839
840# ifdef HAS_QUAD
841# define _swab_64_(x) ((U64)( \
842 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
843 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
844 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
845 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
846 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
847 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
848 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
849 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
850# endif
851
9c17f24a
NC		 852/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
853 at least on FreeBSD. YMMV, so experiment. */
854#ifndef PERL_ARENA_SIZE
855#define PERL_ARENA_SIZE 4080
856#endif
857
ccb2c8b8 858/* Maximum level of recursion */
2b9dff67
RGS		 859#ifndef PERL_SUB_DEPTH_WARN
860#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS		 861#endif
862
1109a392
MHM		 863#endif /* PERL_CORE */
864
bdf3085f
NC		 865/* We no longer default to creating a new SV for GvSV.
866 Do this before embed. */
867#ifndef PERL_CREATE_GVSV
7459f06b
NC		 868# ifndef PERL_DONT_CREATE_GVSV
869# define PERL_DONT_CREATE_GVSV
870# endif
bdf3085f
NC		 871#endif
872
ca0c25f6
NC		 873#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
874#define PERL_USES_PL_PIDSTATUS
875#endif
876
739a0b84 877#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS		 878#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
879#endif
880
c31fac66
GS		 881#define MEM_SIZE Size_t
882
1936d2a7
NC		 883/* Round all values passed to malloc up, by default to a multiple of
884 sizeof(size_t)
885*/
886#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
887#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
888#endif
889
f1200559
WH		 890/* sv_grow() will expand strings by at least a certain percentage of
891 the previously *used* length to avoid excessive calls to realloc().
892 The default is 25% of the current length.
893*/
894#ifndef PERL_STRLEN_EXPAND_SHIFT
895# define PERL_STRLEN_EXPAND_SHIFT 2
896#endif
897
3800c318 898#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS		 899# include <stddef.h>
900# define STRUCT_OFFSET(s,m) offsetof(s,m)
901#else
902# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF		 903#endif
904
905/* ptrdiff_t is C11, so undef it under pedantic builds */
906#ifdef PERL_GCC_PEDANTIC
907# undef HAS_PTRDIFF_T
51371543
GS		 908#endif
909
9969cdde 910#ifndef __SYMBIAN32__
27da23d5
JH		 911# if defined(I_STRING) || defined(__cplusplus)
912# include <string.h>
913# else
914# include <strings.h>
915# endif
51371543
GS		 916#endif
917
55497cff 918/* This comes after <stdlib.h> so we don't try to change the standard
919 * library prototypes; we'll use our own in proto.h instead. */
03a14243 920
4633a7c4 921#ifdef MYMALLOC
86058a2d 922# ifdef PERL_POLLUTE_MALLOC
ee13e175 923# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS		 924# define Perl_malloc malloc
925# define Perl_calloc calloc
926# define Perl_realloc realloc
927# define Perl_mfree free
ee13e175 928# endif
86058a2d
GS		 929# else
930# define EMBEDMYMALLOC /* for compatibility */
931# endif
827e134a 932
651b9576
GS		 933# define safemalloc Perl_malloc
934# define safecalloc Perl_calloc
935# define saferealloc Perl_realloc
936# define safefree Perl_mfree
22f7c9c9
JH		 937# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
938 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
939 code; \
940 } STMT_END
941# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
942 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
943# define panic_write2(s) write(2, s, strlen(s))
944# define CHECK_MALLOC_TAINT(newval) \
945 CHECK_MALLOC_TOO_LATE_FOR_( \
946 if (newval) { \
acfd4d8e 947 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 948 exit(1); })
22f7c9c9 949# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 950 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH		 951 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
952 }} STMT_END;
f2517201
GS		 953#else /* MYMALLOC */
954# define safemalloc safesysmalloc
955# define safecalloc safesyscalloc
956# define saferealloc safesysrealloc
957# define safefree safesysfree
22f7c9c9
JH		 958# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
959# define CHECK_MALLOC_TAINT(newval) ((void)0)
960# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 961#endif /* MYMALLOC */
4633a7c4 962
fe13d51d 963/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 964#define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what)
22f7c9c9
JH		 965#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
966#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
967#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
968
a0d0e21e
LW		 969#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
970#define strchr index
971#define strrchr rindex
972#endif
973
16d20bd9
AD		 974#ifdef I_MEMORY
975# include <memory.h>
976#endif
977
fe14fcc3 978#ifdef HAS_MEMCPY
85e6fe83 979# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 980# ifndef memcpy
20ce7b12 981 extern char * memcpy (char*, char*, int);
ee0007ab
LW		 982# endif
983# endif
984#else
985# ifndef memcpy
986# ifdef HAS_BCOPY
987# define memcpy(d,s,l) bcopy(s,d,l)
988# else
989# define memcpy(d,s,l) my_bcopy(s,d,l)
990# endif
991# endif
992#endif /* HAS_MEMCPY */
fe14fcc3 993
ee0007ab 994#ifdef HAS_MEMSET
85e6fe83 995# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 996# ifndef memset
20ce7b12 997 extern char *memset (char*, int, int);
ee0007ab
LW		 998# endif
999# endif
ee0007ab 1000#else
12ae5dfc 1001# undef memset
fc36a67e 1002# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 1003#endif /* HAS_MEMSET */
1004
85e6fe83 1005#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1006# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 1007# define memmove(d,s,l) bcopy(s,d,l)
1008# else
2304df62 1009# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1010# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1011# else
79072805 1012# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1013# endif
352d5a3a 1014# endif
d9d8d8de 1015#endif
ee0007ab 1016
36477c24 1017#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1018# undef HAS_MEMCMP
1019#endif
1020
1021#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1022# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1023# ifndef memcmp
20ce7b12 1024 extern int memcmp (char*, char*, int);
ee0007ab
LW		 1025# endif
1026# endif
1027#else
1028# ifndef memcmp
ecfc5424 1029# define memcmp my_memcmp
352d5a3a 1030# endif
36477c24 1031#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1032
fc36a67e 1033#ifndef memzero
c635e13b 1034# ifdef HAS_MEMSET
1035# define memzero(d,l) memset(d,0,l)
79072805 1036# else
c635e13b 1037# ifdef HAS_BZERO
1038# define memzero(d,l) bzero(d,l)
79072805 1039# else
fc36a67e 1040# define memzero(d,l) my_bzero(d,l)
79072805
LW		 1041# endif
1042# endif
d9d8d8de 1043#endif
378cc40b 1044
2f42fcb0 1045#ifndef PERL_MICRO
0f27ced1
JH		 1046#ifndef memchr
1047# ifndef HAS_MEMCHR
1048# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1049# endif
1050#endif
2f42fcb0 1051#endif
0f27ced1 1052
36477c24 1053#ifndef HAS_BCMP
1054# ifndef bcmp
1055# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1056# endif
36477c24 1057#endif /* !HAS_BCMP */
378cc40b 1058
ae986130 1059#ifdef I_NETINET_IN
79072805 1060# include <netinet/in.h>
ae986130
LW		 1061#endif
1062
28e8609d
JH		 1063#ifdef I_ARPA_INET
1064# include <arpa/inet.h>
1065#endif
1066
1aef975c 1067#ifdef I_SYS_STAT
84902520 1068# include <sys/stat.h>
1aef975c 1069#endif
79072805 1070
287a962e
JD		 1071/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1072 This definition should ideally go into win32/win32.h, but S_IFIFO is
1073 used later here in perl.h before win32/win32.h is being included. */
1074#if !defined(S_IFIFO) && defined(_S_IFIFO)
1075# define S_IFIFO _S_IFIFO
1076#endif
1077
cc3315ba 1078/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW		 1079 like UTekV) are broken, sometimes giving false positives. Undefine
1080 them here and let the code below set them to proper values.
1081
1082 The ghs macro stands for GreenHills Software C-1.8.5 which
1083 is the C compiler for sysV88 and the various derivatives.
1084 This header file bug is corrected in gcc-2.5.8 and later versions.
1085 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1086
cc3315ba 1087#if defined(m88k) && defined(ghs)
79072805
LW		 1088# undef S_ISDIR
1089# undef S_ISCHR
1090# undef S_ISBLK
1091# undef S_ISREG
1092# undef S_ISFIFO
1093# undef S_ISLNK
ee0007ab 1094#endif
135863df 1095
663a0e37
LW		 1096#ifdef I_TIME
1097# include <time.h>
ffed7fef 1098#endif
663a0e37 1099
fe14fcc3 1100#ifdef I_SYS_TIME
85e6fe83 1101# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1102# define KERNEL
1103# endif
1104# include <sys/time.h>
85e6fe83 1105# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1106# undef KERNEL
1107# endif
a687059c 1108#endif
135863df 1109
55497cff 1110#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1111# include <sys/times.h>
d9d8d8de 1112#endif
8d063cd8 1113
fe14fcc3 1114#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1115# undef HAS_STRERROR
663a0e37
LW		 1116#endif
1117
1118#include <errno.h>
1e743fda 1119
acfe0abc 1120#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS		 1121# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1122#endif
1123
da70cfc6 1124#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH		 1125# include <sys/socket.h>
1126# if defined(USE_SOCKS) && defined(I_SOCKS)
1127# if !defined(INCLUDE_PROTOTYPES)
1128# define INCLUDE_PROTOTYPES /* for <socks.h> */
1129# define PERL_SOCKS_NEED_PROTOTYPES
1130# endif
1131# include <socks.h>
1132# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1133# undef INCLUDE_PROTOTYPES
1134# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1135# endif
d460ef45 1136# endif
1e743fda 1137# ifdef I_NETDB
2986a63f
JH		 1138# ifdef NETWARE
1139# include<stdio.h>
1140# endif
1e743fda
JH		 1141# include <netdb.h>
1142# endif
1143# ifndef ENOTSOCK
1144# ifdef I_NET_ERRNO
1145# include <net/errno.h>
1146# endif
1147# endif
1148#endif
1149
fa0a29af 1150/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM		 1151 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1152 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1153#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM		 1154# if defined(__THROW) && defined(__GLIBC__)
1155int sockatmark(int) __THROW;
1156# else
2ef53570 1157int sockatmark(int);
29820b6d 1158# endif
2ef53570
JH		 1159#endif
1160
7e827271 1161#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		 1162EXTERN_C int fchdir(int);
1163EXTERN_C int flock(int, int);
1164EXTERN_C int fseeko(FILE *, off_t, int);
1165EXTERN_C off_t ftello(FILE *);
1166#endif
1167
7e827271 1168#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1169EXTERN_C char *crypt(const char *, const char *);
7e827271 1170EXTERN_C char **environ;
1ccb7c8d
JH		 1171#endif
1172
83a6ff2e 1173#if defined(__cplusplus)
ce3470dc 1174# if defined(BSDish)
b91fbb93 1175EXTERN_C char **environ;
83a6ff2e 1176# elif defined(__CYGWIN__)
667e2948
SP		 1177EXTERN_C char *crypt(const char *, const char *);
1178#endif
83a6ff2e 1179#endif
667e2948 1180
1e743fda
JH		 1181#ifdef SETERRNO
1182# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1183#endif
f86702cc 1184
1185#ifdef VMS
1186# define SETERRNO(errcode,vmserrcode) \
1187 STMT_START { \
1188 set_errno(errcode); \
1189 set_vaxc_errno(vmserrcode); \
1190 } STMT_END
4ee39169
CS		 1191# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1192# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1193# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1194# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1195
93189314
JH		 1196# define LIB_INVARG LIB$_INVARG
1197# define RMS_DIR RMS$_DIR
1198# define RMS_FAC RMS$_FAC
1199# define RMS_FEX RMS$_FEX
1200# define RMS_FNF RMS$_FNF
1201# define RMS_IFI RMS$_IFI
1202# define RMS_ISI RMS$_ISI
1203# define RMS_PRV RMS$_PRV
1204# define SS_ACCVIO SS$_ACCVIO
1205# define SS_DEVOFFLINE SS$_DEVOFFLINE
1206# define SS_IVCHAN SS$_IVCHAN
1207# define SS_NORMAL SS$_NORMAL
8a9f18be 1208# define SS_NOPRIV SS$_NOPRIV
4388f261 1209# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1210#else
93189314
JH		 1211# define LIB_INVARG 0
1212# define RMS_DIR 0
1213# define RMS_FAC 0
1214# define RMS_FEX 0
1215# define RMS_FNF 0
1216# define RMS_IFI 0
1217# define RMS_ISI 0
1218# define RMS_PRV 0
1219# define SS_ACCVIO 0
1220# define SS_DEVOFFLINE 0
1221# define SS_IVCHAN 0
1222# define SS_NORMAL 0
8a9f18be 1223# define SS_NOPRIV 0
4388f261 1224# define SS_BUFFEROVF 0
748a9306 1225#endif
ed6116ce 1226
6ca940a9
TC		 1227#ifdef WIN32
1228# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1229# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1230# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1231# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1232#endif
1233
1234#ifdef OS2
1235# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1236# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1237# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1238# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1239#endif
1240
1241#ifndef SETERRNO
1242# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1243#endif
1244
1245#ifndef dSAVEDERRNO
1246# define dSAVEDERRNO int saved_errno
1247# define dSAVE_ERRNO int saved_errno = errno
1248# define SAVE_ERRNO (saved_errno = errno)
1249# define RESTORE_ERRNO (errno = saved_errno)
1250#endif
1251
f5fa9033 1252#define ERRSV GvSVn(PL_errgv)
dfd167e9 1253
b4f8d149 1254/* contains inlined gv_add_by_type */
dfd167e9 1255#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD		 1256 SV ** const svp = &GvSV(PL_errgv); \
1257 if (!*svp) { \
1258 goto clresv_newemptypv; \
1259 } else if (SvREADONLY(*svp)) { \
1260 SvREFCNT_dec_NN(*svp); \
1261 clresv_newemptypv: \
1262 *svp = newSVpvs(""); \
dfd167e9 1263 } else { \
b4f8d149 1264 SV *const errsv = *svp; \
dfd167e9 1265 sv_setpvs(errsv, ""); \
b4f8d149 1266 SvPOK_only(errsv); \
dfd167e9
NC		 1267 if (SvMAGICAL(errsv)) { \
1268 mg_free(errsv); \
1269 } \
dfd167e9
NC		 1270 } \
1271 } STMT_END
1272
1273
414bf5ae
MHM		 1274#ifdef PERL_CORE
1275# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC		 1276# define DEFSV_set(sv) \
1277 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1278# define SAVE_DEFSV \
1279 ( \
1280 save_gp(PL_defgv, 0), \
1281 GvINTRO_off(PL_defgv), \
1282 SAVEGENERICSV(GvSV(PL_defgv)), \
1283 GvSV(PL_defgv) = NULL \
1284 )
414bf5ae
MHM		 1285#else
1286# define DEFSV GvSVn(PL_defgv)
55b5114f
FC		 1287# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1288# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1289#endif
38a03e6e 1290
55497cff 1291#ifndef errno
5ff3f7a4
GS		 1292 extern int errno; /* ANSI allows errno to be an lvalue expr.
1293 * For example in multithreaded environments
1294 * something like this might happen:
1295 * extern int *_errno(void);
1296 * #define errno (*_errno()) */
d9d8d8de 1297#endif
663a0e37 1298
7e996671
KW		 1299#define UNKNOWN_ERRNO_MSG "(unknown)"
1300
2304df62 1301#ifdef HAS_STRERROR
b3e384bf 1302# ifndef DONT_DECLARE_STD
a0d0e21e 1303# ifdef VMS
20ce7b12 1304 char *strerror (int,...);
a0d0e21e 1305# else
20ce7b12 1306 char *strerror (int);
a0d0e21e 1307# endif
b3e384bf
KW		 1308# endif
1309# ifndef Strerror
1310# define Strerror strerror
1311# endif
2304df62
AD		 1312#else
1313# ifdef HAS_SYS_ERRLIST
79072805
LW		 1314 extern int sys_nerr;
1315 extern char *sys_errlist[];
2304df62
AD		 1316# ifndef Strerror
1317# define Strerror(e) \
7e996671 1318 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1319# endif
79072805 1320# endif
35c8bce7 1321#endif
663a0e37 1322
2304df62 1323#ifdef I_SYS_IOCTL
79072805
LW		 1324# ifndef _IOCTL_
1325# include <sys/ioctl.h>
1326# endif
a687059c
LW		 1327#endif
1328
ee0007ab 1329#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 1330# ifdef HAS_SOCKETPAIR
1331# undef HAS_SOCKETPAIR
1332# endif
2304df62
AD		 1333# ifdef I_NDBM
1334# undef I_NDBM
79072805 1335# endif
a687059c
LW		 1336#endif
1337
02fc2eee
NC		 1338#ifndef HAS_SOCKETPAIR
1339# ifdef HAS_SOCKET
1340# define socketpair Perl_my_socketpair
1341# endif
1342#endif
1343
a687059c 1344#if INTSIZE == 2
79072805
LW		 1345# define htoni htons
1346# define ntohi ntohs
a687059c 1347#else
79072805
LW		 1348# define htoni htonl
1349# define ntohi ntohl
a687059c
LW		 1350#endif
1351
a0d0e21e 1352/* Configure already sets Direntry_t */
35c8bce7 1353#if defined(I_DIRENT)
663a0e37 1354# include <dirent.h>
ae986130 1355#else
fe14fcc3 1356# ifdef I_SYS_NDIR
79a0689e 1357# include <sys/ndir.h>
663a0e37 1358# else
fe14fcc3 1359# ifdef I_SYS_DIR
79a0689e
LW		 1360# ifdef hp9000s500
1361# include <ndir.h> /* may be wrong in the future */
1362# else
1363# include <sys/dir.h>
1364# endif
663a0e37
LW		 1365# endif
1366# endif
4633a7c4 1367#endif
a687059c 1368
c623bd54
LW		 1369/*
1370 * The following gobbledygook brought to you on behalf of __STDC__.
1371 * (I could just use #ifndef __STDC__, but this is more bulletproof
1372 * in the face of half-implementations.)
1373 */
1374
21e89b5f 1375#if defined(I_SYSMODE)
ca6e1c26
JH		 1376#include <sys/mode.h>
1377#endif
1378
c623bd54
LW		 1379#ifndef S_IFMT
1380# ifdef _S_IFMT
1381# define S_IFMT _S_IFMT
1382# else
1383# define S_IFMT 0170000
1384# endif
1385#endif
1386
1387#ifndef S_ISDIR
1388# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1389#endif
1390
1391#ifndef S_ISCHR
1392# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1393#endif
1394
1395#ifndef S_ISBLK
fe14fcc3
LW		 1396# ifdef S_IFBLK
1397# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1398# else
1399# define S_ISBLK(m) (0)
1400# endif
c623bd54
LW		 1401#endif
1402
1403#ifndef S_ISREG
1404# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1405#endif
1406
1407#ifndef S_ISFIFO
fe14fcc3
LW		 1408# ifdef S_IFIFO
1409# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1410# else
1411# define S_ISFIFO(m) (0)
1412# endif
c623bd54
LW		 1413#endif
1414
1415#ifndef S_ISLNK
1416# ifdef _S_ISLNK
1417# define S_ISLNK(m) _S_ISLNK(m)
1418# else
1419# ifdef _S_IFLNK
1420# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1421# else
1422# ifdef S_IFLNK
1423# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1424# else
1425# define S_ISLNK(m) (0)
1426# endif
1427# endif
1428# endif
1429#endif
1430
1431#ifndef S_ISSOCK
1432# ifdef _S_ISSOCK
1433# define S_ISSOCK(m) _S_ISSOCK(m)
1434# else
1435# ifdef _S_IFSOCK
1436# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1437# else
1438# ifdef S_IFSOCK
1439# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1440# else
1441# define S_ISSOCK(m) (0)
1442# endif
1443# endif
1444# endif
1445#endif
1446
1447#ifndef S_IRUSR
1448# ifdef S_IREAD
1449# define S_IRUSR S_IREAD
1450# define S_IWUSR S_IWRITE
1451# define S_IXUSR S_IEXEC
1452# else
1453# define S_IRUSR 0400
1454# define S_IWUSR 0200
1455# define S_IXUSR 0100
1456# endif
fac7cdfc
JS		 1457#endif
1458
1459#ifndef S_IRGRP
1460# ifdef S_IRUSR
1461# define S_IRGRP (S_IRUSR>>3)
1462# define S_IWGRP (S_IWUSR>>3)
1463# define S_IXGRP (S_IXUSR>>3)
1464# else
1465# define S_IRGRP 0040
1466# define S_IWGRP 0020
1467# define S_IXGRP 0010
1468# endif
1469#endif
1470
1471#ifndef S_IROTH
1472# ifdef S_IRUSR
1473# define S_IROTH (S_IRUSR>>6)
1474# define S_IWOTH (S_IWUSR>>6)
1475# define S_IXOTH (S_IXUSR>>6)
1476# else
1477# define S_IROTH 0040
1478# define S_IWOTH 0020
1479# define S_IXOTH 0010
1480# endif
c623bd54
LW		 1481#endif
1482
1483#ifndef S_ISUID
1484# define S_ISUID 04000
1485#endif
1486
1487#ifndef S_ISGID
1488# define S_ISGID 02000
1489#endif
1490
ca6e1c26
JH		 1491#ifndef S_IRWXU
1492# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1493#endif
ca6e1c26
JH		 1494
1495#ifndef S_IRWXG
1496# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1497#endif
ca6e1c26
JH		 1498
1499#ifndef S_IRWXO
1500# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1501#endif
ca6e1c26 1502
b6c36746 1503/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH		 1504 * which would get included through <sys/file.h >, but that is 3000
1505 * lines in the future. --jhi */
1506
b6c36746 1507#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH		 1508# define S_IREAD S_IRUSR
1509#endif
1510
b6c36746 1511#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH		 1512# define S_IWRITE S_IWUSR
1513#endif
1514
1515#ifndef S_IEXEC
1516# define S_IEXEC S_IXUSR
1517#endif
1518
a0d0e21e 1519#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 1520# define SLOPPYDIVIDE
1521#endif
1522
748a9306
LW		 1523#ifdef UV
1524#undef UV
1525#endif
1526
ce582cee
NC		 1527/* For the times when you want the return value of sprintf, and you want it
1528 to be the length. Can't have a thread variable passed in, because C89 has
1529 no varargs macros.
1530*/
1531#ifdef SPRINTF_RETURNS_STRLEN
1532# define my_sprintf sprintf
1533#else
1534# define my_sprintf Perl_my_sprintf
1535#endif
1536
5b692037
JH		 1537/*
1538 * If we have v?snprintf() and the C99 variadic macros, we can just
1539 * use just the v?snprintf(). It is nice to try to trap the buffer
1540 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD		 1541 * gcc statement expressions, then use the function wrappers which try
1542 * to trap the overflow. If we can use the gcc statement expressions,
1543 * we can try that even with the version that uses the C99 variadic
1544 * macros.
5b692037
JH		 1545 */
1546
1208b3dd
JH		 1547/* Note that we do not check against snprintf()/vsnprintf() returning
1548 * negative values because that is non-standard behaviour and we use
1549 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1550 * that should be true only if the snprintf()/vsnprintf() are true
1551 * to the standard. */
1552
e8549682
JH		 1553#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
1554
a4eca1d4
JH		 1555#ifdef USE_QUADMATH
1556# define my_snprintf Perl_my_snprintf
1557# define PERL_MY_SNPRINTF_GUARDED
1558#else
dfeee9b1 1559#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1560# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1561# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1562# define PERL_MY_SNPRINTF_GUARDED
5b692037 1563# else
e8549682 1564# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1565# endif
1566#else
1567# define my_snprintf Perl_my_snprintf
1208b3dd 1568# define PERL_MY_SNPRINTF_GUARDED
5b692037 1569#endif
a4eca1d4 1570#endif
5b692037 1571
a4eca1d4
JH		 1572/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1573 * dies if called under USE_QUADMATH. */
dfeee9b1 1574#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1575# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1576# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1577# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1578# else
e8549682 1579# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1580# endif
1581#else
1582# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1583# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1584#endif
d9fad198 1585
e8549682
JH		 1586/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1587 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1588 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1589 * completely ignore it: otherwise you cannot know whether your output
1590 * was too long.)
1591 *
1592 * int len = my_sprintf(buf, max, ...);
1593 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1594 *
1595 * The trick is that in certain platforms [a] the my_sprintf() already
1596 * contains the sanity check, while in certain platforms [b] it needs
1597 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1598 * platforms the POST_GUARD actually does nothing since the check has
1599 * already been done. Watch out for the max being the same in both calls.
1600 *
1601 * If you actually use the snprintf/vsnprintf return value already,
1602 * you assumedly are checking its validity somehow. But you can
1603 * insert the POST_GUARD() also in that case. */
1604
1605#ifndef PERL_MY_SNPRINTF_GUARDED
1606# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1607#else
1608# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1609#endif
1610
1611#ifndef PERL_MY_VSNPRINTF_GUARDED
1612# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1613#else
1614# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1615#endif
1616
a6cc4119
SP		 1617#ifdef HAS_STRLCAT
1618# define my_strlcat strlcat
1619#else
1620# define my_strlcat Perl_my_strlcat
1621#endif
1622
1623#ifdef HAS_STRLCPY
1624# define my_strlcpy strlcpy
1625#else
1626# define my_strlcpy Perl_my_strlcpy
1627#endif
1628
05f13f53 1629/*
27d4fb96 1630 The IV type is supposed to be long enough to hold any integral
1631 value or a pointer.
1632 --Andy Dougherty August 1996
1633*/
1634
a22e52b9
JH		 1635typedef IVTYPE IV;
1636typedef UVTYPE UV;
8175356b 1637
10cc9d2a 1638#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1639# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS		 1640# define IV_MAX INT64_MAX
1641# define IV_MIN INT64_MIN
1642# define UV_MAX UINT64_MAX
cae7ae48
JH		 1643# ifndef UINT64_MIN
1644# define UINT64_MIN 0
1645# endif
5ff3f7a4
GS		 1646# define UV_MIN UINT64_MIN
1647# else
1648# define IV_MAX PERL_QUAD_MAX
1649# define IV_MIN PERL_QUAD_MIN
1650# define UV_MAX PERL_UQUAD_MAX
1651# define UV_MIN PERL_UQUAD_MIN
1652# endif
cf2093f6
JH		 1653# define IV_IS_QUAD
1654# define UV_IS_QUAD
79072805 1655#else
8175356b 1656# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS		 1657# define IV_MAX INT32_MAX
1658# define IV_MIN INT32_MIN
716026f9
DL		 1659# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1660# define UV_MAX UINT32_MAX
1661# else
1662# define UV_MAX 4294967295U
1663# endif
cae7ae48
JH		 1664# ifndef UINT32_MIN
1665# define UINT32_MIN 0
1666# endif
5ff3f7a4
GS		 1667# define UV_MIN UINT32_MIN
1668# else
1669# define IV_MAX PERL_LONG_MAX
1670# define IV_MIN PERL_LONG_MIN
1671# define UV_MAX PERL_ULONG_MAX
1672# define UV_MIN PERL_ULONG_MIN
1673# endif
8175356b 1674# if IVSIZE == 8
cf2093f6
JH		 1675# define IV_IS_QUAD
1676# define UV_IS_QUAD
de1c2614
JH		 1677# ifndef HAS_QUAD
1678# define HAS_QUAD
1679# endif
cf2093f6
JH		 1680# else
1681# undef IV_IS_QUAD
1682# undef UV_IS_QUAD
9ea40801 1683#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC		 1684/* We think that removing this decade-old undef this will cause too much
1685 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH		 1686 However, we do need HAS_QUAD in the core for use by the drand48 code,
1687 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1688# undef HAS_QUAD
e25d460c 1689#endif
cf2093f6 1690# endif
79072805 1691#endif
d7d93a81 1692
6313e544
JH		 1693#define Size_t_MAX (~(Size_t)0)
1694#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1695
cae7ae48 1696#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1697#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1698
28e5dec8 1699#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1700#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH		 1701#endif
1702
d460ef45 1703/*
26bb67e2
JH		 1704 * The macros INT2PTR and NUM2PTR are (despite their names)
1705 * bi-directional: they will convert int/float to or from pointers.
1706 * However the conversion to int/float are named explicitly:
1707 * PTR2IV, PTR2UV, PTR2NV.
1708 *
1709 * For int conversions we do not need two casts if pointers are
1710 * the same size as IV and UV. Otherwise we need an explicit
1711 * cast (PTRV) to avoid compiler warnings.
1712 */
56431972
RB		 1713#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1714# define PTRV UV
1715# define INT2PTR(any,d) (any)(d)
1716#else
d460ef45 1717# if PTRSIZE == LONGSIZE
56431972 1718# define PTRV unsigned long
e91e3b10 1719# define PTR2ul(p) (unsigned long)(p)
42718184 1720# else
56431972 1721# define PTRV unsigned
42718184 1722# endif
e91e3b10
RB		 1723#endif
1724
1725#ifndef INT2PTR
56431972 1726# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1727#endif
e91e3b10
RB		 1728
1729#ifndef PTR2ul
1730# define PTR2ul(p) INT2PTR(unsigned long,p)
1731#endif
1732
56431972
RB		 1733#define NUM2PTR(any,d) (any)(PTRV)(d)
1734#define PTR2IV(p) INT2PTR(IV,p)
1735#define PTR2UV(p) INT2PTR(UV,p)
1736#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1737#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1738
8141890a
JH		 1739/* According to strict ANSI C89 one cannot freely cast between
1740 * data pointers and function (code) pointers. There are at least
1741 * two ways around this. One (used below) is to do two casts,
1742 * first the other pointer to an (unsigned) integer, and then
1743 * the integer to the other pointer. The other way would be
1744 * to use unions to "overlay" the pointers. For an example of
1745 * the latter technique, see union dirpu in struct xpvio in sv.h.
1746 * The only feasible use is probably temporarily storing
1747 * function pointers in a data pointer (such as a void pointer). */
1748
e91e3b10
RB		 1749#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1750#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1751
65202027 1752#ifdef USE_LONG_DOUBLE
f3654d06
JH		 1753# if LONG_DOUBLESIZE == DOUBLESIZE
1754# define LONG_DOUBLE_EQUALS_DOUBLE
1755# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS		 1756# endif
1757#endif
1758
2d4389e4
JH		 1759#ifdef OVR_DBL_DIG
1760/* Use an overridden DBL_DIG */
1761# ifdef DBL_DIG
1762# undef DBL_DIG
1763# endif
1764# define DBL_DIG OVR_DBL_DIG
1765#else
1766/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS		 1767 default value for printing floating point numbers in Gconvert
1768 (see config.h). (It also has other uses, such as figuring out if
1769 a given precision of printing can be done with a double instead of
1770 a long double - Allen).
2d4389e4
JH		 1771*/
1772#ifdef I_LIMITS
1773#include <limits.h>
1774#endif
1775#ifdef I_FLOAT
1776#include <float.h>
1777#endif
1778#ifndef HAS_DBL_DIG
1779#define DBL_DIG 15 /* A guess that works lots of places */
1780#endif
1781#endif
1782
1783#ifdef OVR_LDBL_DIG
1784/* Use an overridden LDBL_DIG */
1785# ifdef LDBL_DIG
1786# undef LDBL_DIG
1787# endif
1788# define LDBL_DIG OVR_LDBL_DIG
1789#else
1790/* The following is all to get LDBL_DIG, in order to pick a nice
1791 default value for printing floating point numbers in Gconvert.
1792 (see config.h)
1793*/
68d4903c
JH		 1794# ifdef I_LIMITS
1795# include <limits.h>
1796# endif
1797# ifdef I_FLOAT
1798# include <float.h>
1799# endif
1800# ifndef HAS_LDBL_DIG
1801# if LONG_DOUBLESIZE == 10
1802# define LDBL_DIG 18 /* assume IEEE */
1803# else
1804# if LONG_DOUBLESIZE == 12
1805# define LDBL_DIG 18 /* gcc? */
1806# else
1807# if LONG_DOUBLESIZE == 16
1808# define LDBL_DIG 33 /* assume IEEE */
1809# else
1810# if LONG_DOUBLESIZE == DOUBLESIZE
1811# define LDBL_DIG DBL_DIG /* bummer */
1812# endif
1813# endif
1814# endif
1815# endif
1816# endif
2d4389e4
JH		 1817#endif
1818
20f6aaab
AS		 1819/*
1820 * This is for making sure we have a good DBL_MAX value, if possible,
1821 * either for usage as NV_MAX or for usage in figuring out if we can
1822 * fit a given long double into a double, if bug-fixing makes it
1823 * necessary to do so. - Allen <allens@cpan.org>
1824 */
1825
205f51d8
AS		 1826#ifdef I_LIMITS
1827# include <limits.h>
20f6aaab
AS		 1828#endif
1829
205f51d8
AS		 1830#ifdef I_VALUES
1831# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1832# include <values.h>
1833# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1834# define DBL_MAX MAXDOUBLE
1835# endif
1836# if defined(MINDOUBLE) && !defined(DBL_MIN)
1837# define DBL_MIN MINDOUBLE
1838# endif
1839# endif
1840#endif /* defined(I_VALUES) */
1841
a22e52b9 1842typedef NVTYPE NV;
8175356b 1843
792d8dab
JH		 1844#ifdef I_IEEEFP
1845# include <ieeefp.h>
1846#endif
923fc586 1847
c32c3de1
JH		 1848#ifdef USING_MSVC6
1849/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1850 * and for example NaN < IV_MIN. */
bcd8bfa9
JH		 1851# define NAN_COMPARE_BROKEN
1852#endif
1853#if defined(__DECC) && defined(__osf__)
1854/* Also Tru64 cc has broken NaN comparisons. */
1855# define NAN_COMPARE_BROKEN
c32c3de1
JH		 1856#endif
1857
65202027 1858#ifdef USE_LONG_DOUBLE
923fc586
JH		 1859# ifdef I_SUNMATH
1860# include <sunmath.h>
1861# endif
84e6cb05 1862# if defined(LDBL_DIG)
05b4a618
JH		 1863# define NV_DIG LDBL_DIG
1864# ifdef LDBL_MANT_DIG
1865# define NV_MANT_DIG LDBL_MANT_DIG
1866# endif
1867# ifdef LDBL_MIN
1868# define NV_MIN LDBL_MIN
1869# endif
1870# ifdef LDBL_MAX
1871# define NV_MAX LDBL_MAX
1872# endif
1873# ifdef LDBL_MIN_EXP
1874# define NV_MIN_EXP LDBL_MIN_EXP
1875# endif
1876# ifdef LDBL_MAX_EXP
1877# define NV_MAX_EXP LDBL_MAX_EXP
1878# endif
1879# ifdef LDBL_MIN_10_EXP
1880# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1881# endif
1882# ifdef LDBL_MAX_10_EXP
1883# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1884# endif
1885# ifdef LDBL_EPSILON
1886# define NV_EPSILON LDBL_EPSILON
1887# endif
1888# ifdef LDBL_MAX
1889# define NV_MAX LDBL_MAX
20f6aaab 1890/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1891# else
05b4a618
JH		 1892# ifdef HUGE_VALL
1893# define NV_MAX HUGE_VALL
f4a14a62
JH		 1894# endif
1895# endif
1896# endif
84e6cb05 1897# if defined(HAS_SQRTL)
8a00eddc
JH		 1898# define Perl_acos acosl
1899# define Perl_asin asinl
1900# define Perl_atan atanl
940e3d56
JH		 1901# define Perl_atan2 atan2l
1902# define Perl_ceil ceill
1903# define Perl_cos cosl
8a00eddc 1904# define Perl_cosh coshl
940e3d56 1905# define Perl_exp expl
55da5e5b 1906/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 1907# define Perl_floor floorl
1908# define Perl_fmod fmodl
1909# define Perl_log logl
8a00eddc 1910# define Perl_log10 log10l
940e3d56
JH		 1911# define Perl_pow powl
1912# define Perl_sin sinl
8a00eddc 1913# define Perl_sinh sinhl
940e3d56 1914# define Perl_sqrt sqrtl
8a00eddc
JH		 1915# define Perl_tan tanl
1916# define Perl_tanh tanhl
68d4903c 1917# endif
a3540c92 1918/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH		 1919# ifndef Perl_modf
1920# ifdef HAS_MODFL
1921# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC		 1922/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1923 prototype in <math.h> */
05b4a618 1924# ifndef HAS_MODFL_PROTO
a221a8a5 1925EXTERN_C long double modfl(long double, long double *);
05b4a618
JH		 1926# endif
1927# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1928 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1929# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1930# endif
a3540c92 1931# endif
05b4a618
JH		 1932# ifndef Perl_frexp
1933# ifdef HAS_FREXPL
1934# define Perl_frexp(x,y) frexpl(x,y)
1935# else
1936# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1937extern long double Perl_my_frexpl(long double x, int *e);
1938# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1939# endif
03476e8e 1940# endif
a3540c92 1941# endif
05b4a618
JH		 1942# ifndef Perl_ldexp
1943# ifdef HAS_LDEXPL
1944# define Perl_ldexp(x, y) ldexpl(x,y)
1945# else
1946# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1947# define Perl_ldexp(x,y) scalbnl(x,y)
1948# endif
98181445
JH		 1949# endif
1950# endif
38dbb4c5 1951# ifndef Perl_isnan
e4c957f4 1952# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH		 1953# define Perl_isnan(x) isnanl(x)
1954# endif
1955# endif
1956# ifndef Perl_isinf
e4c957f4 1957# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1958# define Perl_isinf(x) isinfl(x)
bcd8bfa9 1959# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1960# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH		 1961# endif
1962# endif
e38461cc
JH		 1963# ifndef Perl_isfinite
1964# define Perl_isfinite(x) Perl_isfinitel(x)
1965# endif
84e6cb05
JH		 1966#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1967# include <quadmath.h>
1968# define NV_DIG FLT128_DIG
1969# define NV_MANT_DIG FLT128_MANT_DIG
1970# define NV_MIN FLT128_MIN
1971# define NV_MAX FLT128_MAX
1972# define NV_MIN_EXP FLT128_MIN_EXP
1973# define NV_MAX_EXP FLT128_MAX_EXP
1974# define NV_EPSILON FLT128_EPSILON
1975# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1976# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH		 1977# define Perl_acos acosq
1978# define Perl_asin asinq
1979# define Perl_atan atanq
1980# define Perl_atan2 atan2q
1981# define Perl_ceil ceilq
1982# define Perl_cos cosq
1983# define Perl_cosh coshq
1984# define Perl_exp expq
1985/* no Perl_fabs, but there's PERL_ABS */
1986# define Perl_floor floorq
1987# define Perl_fmod fmodq
1988# define Perl_log logq
1989# define Perl_log10 log10q
1990# define Perl_pow powq
1991# define Perl_sin sinq
1992# define Perl_sinh sinhq
1993# define Perl_sqrt sqrtq
1994# define Perl_tan tanq
1995# define Perl_tanh tanhq
1996# define Perl_modf(x,y) modfq(x,y)
1997# define Perl_frexp(x,y) frexpq(x,y)
1998# define Perl_ldexp(x, y) ldexpq(x,y)
1999# define Perl_isinf(x) isinfq(x)
2000# define Perl_isnan(x) isnanq(x)
2001# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2002#else
2d4389e4 2003# define NV_DIG DBL_DIG
d6c14000
JH		 2004# ifdef DBL_MANT_DIG
2005# define NV_MANT_DIG DBL_MANT_DIG
2006# endif
06fc1729
JH		 2007# ifdef DBL_MIN
2008# define NV_MIN DBL_MIN
2009# endif
2010# ifdef DBL_MAX
2011# define NV_MAX DBL_MAX
2012# endif
40bca5ae
JH		 2013# ifdef DBL_MIN_EXP
2014# define NV_MIN_EXP DBL_MIN_EXP
2015# endif
2016# ifdef DBL_MAX_EXP
2017# define NV_MAX_EXP DBL_MAX_EXP
2018# endif
06fc1729
JH		 2019# ifdef DBL_MIN_10_EXP
2020# define NV_MIN_10_EXP DBL_MIN_10_EXP
2021# endif
2022# ifdef DBL_MAX_10_EXP
2023# define NV_MAX_10_EXP DBL_MAX_10_EXP
2024# endif
2025# ifdef DBL_EPSILON
2026# define NV_EPSILON DBL_EPSILON
2027# endif
205f51d8 2028# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH		 2029# define NV_MAX DBL_MAX
2030# define NV_MIN DBL_MIN
2031# else
2032# ifdef HUGE_VAL
2033# define NV_MAX HUGE_VAL
2034# endif
2035# endif
940e3d56 2036
55da5e5b 2037/* These math interfaces are C89. */
8a00eddc
JH		 2038# define Perl_acos acos
2039# define Perl_asin asin
2040# define Perl_atan atan
940e3d56
JH		 2041# define Perl_atan2 atan2
2042# define Perl_ceil ceil
2043# define Perl_cos cos
8a00eddc 2044# define Perl_cosh cosh
940e3d56 2045# define Perl_exp exp
55da5e5b 2046/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 2047# define Perl_floor floor
2048# define Perl_fmod fmod
2049# define Perl_log log
8a00eddc 2050# define Perl_log10 log10
940e3d56
JH		 2051# define Perl_pow pow
2052# define Perl_sin sin
8a00eddc 2053# define Perl_sinh sinh
940e3d56 2054# define Perl_sqrt sqrt
8a00eddc
JH		 2055# define Perl_tan tan
2056# define Perl_tanh tanh
940e3d56
JH		 2057
2058# define Perl_modf(x,y) modf(x,y)
2059# define Perl_frexp(x,y) frexp(x,y)
2060# define Perl_ldexp(x,y) ldexp(x,y)
2061
1a322af2
JH		 2062# ifndef Perl_isnan
2063# ifdef HAS_ISNAN
2064# define Perl_isnan(x) isnan(x)
2065# endif
2066# endif
2067# ifndef Perl_isinf
2068# if defined(HAS_ISINF)
2069# define Perl_isinf(x) isinf(x)
bcd8bfa9 2070# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2071# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH		 2072# endif
2073# endif
2074# ifndef Perl_isfinite
2075# ifdef HAS_ISFINITE
2076# define Perl_isfinite(x) isfinite(x)
2077# elif defined(HAS_FINITE)
2078# define Perl_isfinite(x) finite(x)
2079# endif
2080# endif
758a5d79
JH		 2081#endif
2082
30404d48
JH		 2083/* fpclassify(): C99. It is supposed to be a macro that switches on
2084* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2085#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2086# include <math.h>
25c46df8
JH		 2087# if defined(FP_INFINITE) && defined(FP_NAN)
2088# define Perl_fp_class(x) fpclassify(x)
2089# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2090# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2091# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2092# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2093# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2094# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2095/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2096 * actually not the C99 fpclassify, with its own set of return defines. */
2097# define Perl_fp_class(x) fpclassify(x)
2098# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2099# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2100# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH		 2101# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2102# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2103# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH		 2104# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2105# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2106# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2107# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2108# else
2109# undef Perl_fp_class /* Unknown set of defines */
2110# endif
30404d48
JH		 2111#endif
2112
25c46df8
JH		 2113/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2114 * are identical to the C99 fpclassify(). */
2115#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2116# include <math.h>
558f3e66
CB		 2117# ifdef __VMS
2118 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2119# include <fp.h>
56610b8f
CB		 2120 /* oh, and the isnormal macro has a typo in it! */
2121# undef isnormal
2122# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2123# endif
25c46df8
JH		 2124# if defined(FP_INFINITE) && defined(FP_NAN)
2125# define Perl_fp_class(x) fp_classify(x)
2126# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2127# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2128# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2129# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2130# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2131# else
2132# undef Perl_fp_class /* Unknown set of defines */
2133# endif
f279e099 2134#endif
205f51d8 2135
30404d48
JH		 2136/* Feel free to check with me for the SGI manpages, SGI testing,
2137 * etcetera, if you want to try getting this to work with IRIX.
2138 *
2139 * - Allen <allens@cpan.org> */
2140
2141/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2142#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH		 2143/* Solaris and IRIX have fpclass/fpclassl, but they are using
2144 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2145 * Define some symbols also as cpp symbols so we can detect them. */
2146# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2147# define FP_PINF FP_PINF
2148# define FP_QNAN FP_QNAN
2149# endif
f279e099 2150# include <math.h>
758a5d79
JH		 2151# ifdef I_IEEFP
2152# include <ieeefp.h>
2153# endif
2154# ifdef I_FP
2155# include <fp.h>
2156# endif
2157# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2158# define Perl_fp_class(x) fpclassl(x)
758a5d79 2159# else
f279e099
JH		 2160# define Perl_fp_class(x) fpclass(x)
2161# endif
25c46df8 2162# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH		 2163# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2164# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2165# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2166# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2167# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2168# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2169# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2170# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2171# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2172# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2173# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH		 2174# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2175# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2176# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2177# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2178# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2179# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2180# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2181# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2182# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2183# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH		 2184# else
2185# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2186# endif
758a5d79
JH		 2187#endif
2188
30404d48
JH		 2189/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2190#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH		 2191# include <math.h>
2192# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2193# include <fp_class.h>
2194# endif
25c46df8
JH		 2195# if defined(FP_POS_INF) && defined(FP_QNAN)
2196# ifdef __irix__ /* XXX Configure test instead */
2197# ifdef USE_LONG_DOUBLE
2198# define Perl_fp_class(x) fp_class_l(x)
2199# else
2200# define Perl_fp_class(x) fp_class_d(x)
2201# endif
f279e099 2202# else
25c46df8
JH		 2203# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2204# define Perl_fp_class(x) fp_classl(x)
2205# else
2206# define Perl_fp_class(x) fp_class(x)
2207# endif
f279e099 2208# endif
25c46df8
JH		 2209# if defined(FP_POS_INF) && defined(FP_QNAN)
2210# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2211# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2212# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2213# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2214# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2215# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2216# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2217# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2218# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2219# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2220# else
25c46df8 2221# undef Perl_fp_class /* Unknown set of defines */
30404d48 2222# endif
f279e099 2223# endif
30404d48
JH		 2224#endif
2225
052758ae 2226/* class(), _class(): Legacy: AIX. */
758a5d79
JH		 2227#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2228# include <math.h>
25c46df8
JH		 2229# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2230# ifndef _cplusplus
2231# define Perl_fp_class(x) class(x)
2232# else
2233# define Perl_fp_class(x) _class(x)
2234# endif
2235# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2236# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2237# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2238# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2239# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2240# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2241# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2242# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2243# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2244# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2245# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2246# else
2247# undef Perl_fp_class /* Unknown set of defines */
2248# endif
758a5d79 2249# endif
30404d48
JH		 2250#endif
2251
2252/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH		 2253#ifdef WIN32
2254# ifndef Perl_isnan
2255# define Perl_isnan(x) _isnan(x)
2256# endif
2257# ifndef Perl_isfinite
2258# define Perl_isfinite(x) _finite(x)
2259# endif
2260# ifndef Perl_fp_class_snan
25c46df8
JH		 2261/* No simple way to #define Perl_fp_class because _fpclass()
2262 * returns a set of bits. */
796ea9ea
JH		 2263# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2264# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2265# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH		 2266# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2267# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2268# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2269# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2270# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2271# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2272# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2273# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2274# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2275# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2276# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2277# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2278# endif
f279e099
JH		 2279#endif
2280
2281#if !defined(Perl_fp_class_inf) && \
2282 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2283# define Perl_fp_class_inf(x) \
2284 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2285#endif
2286
2287#if !defined(Perl_fp_class_nan) && \
2288 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2289# define Perl_fp_class_nan(x) \
2290 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2291#endif
2292
2293#if !defined(Perl_fp_class_zero) && \
2294 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2295# define Perl_fp_class_zero(x) \
2296 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2297#endif
2298
2299#if !defined(Perl_fp_class_norm) && \
2300 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2301# define Perl_fp_class_norm(x) \
2302 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2303#endif
2304
2305#if !defined(Perl_fp_class_denorm) && \
2306 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2307# define Perl_fp_class_denorm(x) \
2308 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2309#endif
758a5d79 2310
1a322af2
JH		 2311#ifdef UNDER_CE
2312int isnan(double d);
2313#endif
2314
758a5d79 2315#ifndef Perl_isnan
1a322af2
JH		 2316# ifdef Perl_fp_class_nan
2317# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2318# else
1a322af2
JH		 2319# ifdef HAS_UNORDERED
2320# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2321# else
1a322af2 2322# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH		 2323# endif
2324# endif
2325#endif
2326
1a322af2
JH		 2327#ifndef Perl_isinf
2328# ifdef Perl_fp_class_inf
2329# define Perl_isinf(x) Perl_fp_class_inf(x)
2330# endif
ca6c63e1
JH		 2331#endif
2332
758a5d79 2333#ifndef Perl_isfinite
25c46df8 2334# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2335# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2336# elif defined(HAS_FINITE)
c496ca58 2337# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH		 2338# elif defined(Perl_fp_class_finite)
2339# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2340# else
c496ca58
JH		 2341/* For the infinities the multiplication returns nan,
2342 * for the nan the multiplication also returns nan,
2343 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2344# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2345# endif
65202027
DS		 2346#endif
2347
25c46df8
JH		 2348#ifndef Perl_isinf
2349# if defined(Perl_isfinite) && defined(Perl_isnan)
2350# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2351# endif
2352#endif
2353
d3685250
JH		 2354/* We need Perl_isfinitel (ends with ell) (if available) even when
2355 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2356 * needs that. */
2357#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2358/* If isfinite() is a macro and looks like we have C99,
2359 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2360# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH		 2361# define Perl_isfinitel(x) isfinite(x)
2362# elif defined(HAS_ISFINITEL)
2363# define Perl_isfinitel(x) isfinitel(x)
2364# elif defined(HAS_FINITEL)
2365# define Perl_isfinitel(x) finitel(x)
2366# elif defined(HAS_INFL) && defined(HAS_NANL)
2367# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2368# else
99bf9e32 2369# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH		 2370# endif
2371#endif
2372
a36244b7
JH		 2373/* The default is to use Perl's own atof() implementation (in numeric.c).
2374 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2375 * it is however best to use the native implementation of atof.
2376 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2377 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS		 2378 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2379 * you may need to be using a different function than atof! */
a36244b7
JH		 2380
2381#ifndef USE_PERL_ATOF
2382# ifndef _UNICOS
2383# define USE_PERL_ATOF
2384# endif
2385#else
2386# if USE_PERL_ATOF == 0
2387# undef USE_PERL_ATOF
2388# endif
2389#endif
2390
2391#ifdef USE_PERL_ATOF
2392# define Perl_atof(s) Perl_my_atof(s)
2393# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2394#else
2395# define Perl_atof(s) (NV)atof(s)
2396# define Perl_atof2(s, n) ((n) = atof(s))
2397#endif
cf2093f6 2398
d460ef45 2399/* Previously these definitions used hardcoded figures.
760ac839
LW		 2400 * It is hoped these formula are more portable, although
2401 * no data one way or another is presently known to me.
2402 * The "PERL_" names are used because these calculated constants
2403 * do not meet the ANSI requirements for LONG_MAX, etc., which
2404 * need to be constants acceptable to #if - kja
2405 * define PERL_LONG_MAX 2147483647L
2406 * define PERL_LONG_MIN (-LONG_MAX - 1)
2407 * define PERL ULONG_MAX 4294967295L
2408 */
2409
2410#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2411# include <limits.h>
760ac839 2412#endif
205f51d8 2413/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2414 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2415
99abf803 2416/*
2417 * Try to figure out max and min values for the integral types. THE CORRECT
2418 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2419 * following hacks are used if neither limits.h or values.h provide them:
2420 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2421 * for types < int: (unsigned TYPE)~(unsigned)0
2422 * The argument to ~ must be unsigned so that later signed->unsigned
2423 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2424 * and it must not be smaller than int because ~ does integral promotion.
2425 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2426 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2427 * The latter is a hack which happens to work on some machines but
2428 * does *not* catch any random system, or things like integer types
2429 * with NaN if that is possible.
2430 *
2431 * All of the types are explicitly cast to prevent accidental loss of
2432 * numeric range, and in the hope that they will be less likely to confuse
2433 * over-eager optimizers.
2434 *
2435 */
27d4fb96 2436
99abf803 2437#define PERL_UCHAR_MIN ((unsigned char)0)
2438
2439#ifdef UCHAR_MAX
2440# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2441#else
99abf803 2442# ifdef MAXUCHAR
2443# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2444# else
99abf803 2445# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 2446# endif
2447#endif
d460ef45 2448
99abf803 2449/*
2450 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2451 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2452 * depending on local options. Until Configure detects this (or at least
2453 * detects whether the "signed" keyword is available) the CHAR ranges
2454 * will not be included. UCHAR functions normally.
2455 * - kja
2456 */
27d4fb96 2457
99abf803 2458#define PERL_USHORT_MIN ((unsigned short)0)
2459
2460#ifdef USHORT_MAX
2461# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2462#else
99abf803 2463# ifdef MAXUSHORT
2464# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2465# else
ef2f54b0
CB		 2466# ifdef USHRT_MAX
2467# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2468# else
2469# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2470# endif
27d4fb96 2471# endif
2472#endif
2473
27d4fb96 2474#ifdef SHORT_MAX
99abf803 2475# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 2476#else
2477# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2478# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2479# else
ef2f54b0
CB		 2480# ifdef SHRT_MAX
2481# define PERL_SHORT_MAX ((short)SHRT_MAX)
2482# else
2483# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2484# endif
27d4fb96 2485# endif
2486#endif
2487
2488#ifdef SHORT_MIN
99abf803 2489# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 2490#else
2491# ifdef MINSHORT
99abf803 2492# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2493# else
ef2f54b0
CB		 2494# ifdef SHRT_MIN
2495# define PERL_SHORT_MIN ((short)SHRT_MIN)
2496# else
2497# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2498# endif
27d4fb96 2499# endif
2500#endif
2501
99abf803 2502#ifdef UINT_MAX
2503# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2504#else
99abf803 2505# ifdef MAXUINT
2506# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2507# else
99abf803 2508# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 2509# endif
2510#endif
2511
99abf803 2512#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2513
2514#ifdef INT_MAX
99abf803 2515# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 2516#else
2517# ifdef MAXINT /* Often used in <values.h> */
99abf803 2518# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2519# else
99abf803 2520# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 2521# endif
2522#endif
2523
2524#ifdef INT_MIN
99abf803 2525# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2526#else
2527# ifdef MININT
99abf803 2528# define PERL_INT_MIN ((int)MININT)
27d4fb96 2529# else
2530# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2531# endif
2532#endif
2533
99abf803 2534#ifdef ULONG_MAX
2535# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2536#else
99abf803 2537# ifdef MAXULONG
2538# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2539# else
99abf803 2540# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 2541# endif
2542#endif
2543
99abf803 2544#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2545
760ac839 2546#ifdef LONG_MAX
99abf803 2547# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 2548#else
2549# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2550# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2551# else
99abf803 2552# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 2553# endif
2554#endif
2555
2556#ifdef LONG_MIN
99abf803 2557# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 2558#else
2559# ifdef MINLONG
99abf803 2560# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2561# else
27d4fb96 2562# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 2563# endif
2564#endif
2565
d7d93a81 2566#ifdef UV_IS_QUAD
99abf803 2567
99abf803 2568# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2569# define PERL_UQUAD_MIN ((UV)0)
99abf803 2570# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2571# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2572
79072805
LW		 2573#endif
2574
ee0007ab 2575typedef MEM_SIZE STRLEN;
450a55e4 2576
79072805
LW		 2577typedef struct op OP;
2578typedef struct cop COP;
2579typedef struct unop UNOP;
2f7c6295 2580typedef struct unop_aux UNOP_AUX;
79072805
LW		 2581typedef struct binop BINOP;
2582typedef struct listop LISTOP;
2583typedef struct logop LOGOP;
79072805
LW		 2584typedef struct pmop PMOP;
2585typedef struct svop SVOP;
7934575e 2586typedef struct padop PADOP;
79072805 2587typedef struct pvop PVOP;
79072805 2588typedef struct loop LOOP;
b46e009d 2589typedef struct methop METHOP;
79072805 2590
7aef8e5b 2591#ifdef PERL_CORE
8be227ab
FC		 2592typedef struct opslab OPSLAB;
2593typedef struct opslot OPSLOT;
2594#endif
2595
52db365a 2596typedef struct block_hooks BHK;
1830b3d9 2597typedef struct custom_op XOP;
52db365a 2598
cd1541b2
NC		 2599typedef struct interpreter PerlInterpreter;
2600
d2b3f365 2601/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2602#if defined(__sgi)
d2b3f365 2603# define STRUCT_SV perl_sv
b8d3c5db
JH		 2604#else
2605# define STRUCT_SV sv
2606#endif
2607typedef struct STRUCT_SV SV;
79072805
LW		 2608typedef struct av AV;
2609typedef struct hv HV;
2610typedef struct cv CV;
d2f13c59 2611typedef struct p5rx REGEXP;
79072805 2612typedef struct gp GP;
0c30d9ec 2613typedef struct gv GV;
8990e307 2614typedef struct io IO;
c09156bb 2615typedef struct context PERL_CONTEXT;
79072805
LW		 2616typedef struct block BLOCK;
2617
2618typedef struct magic MAGIC;
2619typedef struct xpv XPV;
2620typedef struct xpviv XPVIV;
ff68c719 2621typedef struct xpvuv XPVUV;
79072805
LW		 2622typedef struct xpvnv XPVNV;
2623typedef struct xpvmg XPVMG;
2624typedef struct xpvlv XPVLV;
d361b004 2625typedef struct xpvinvlist XINVLIST;
79072805
LW		 2626typedef struct xpvav XPVAV;
2627typedef struct xpvhv XPVHV;
2628typedef struct xpvgv XPVGV;
2629typedef struct xpvcv XPVCV;
2630typedef struct xpvbm XPVBM;
2631typedef struct xpvfm XPVFM;
8990e307 2632typedef struct xpvio XPVIO;
79072805
LW		 2633typedef struct mgvtbl MGVTBL;
2634typedef union any ANY;
5f7fde29
GS		 2635typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2636typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS		 2637typedef struct clone_params CLONE_PARAMS;
2638
0f94cb1f 2639/* a pad is currently just an AV; but that might change,
7261499d
FC		 2640 * so hide the type. */
2641typedef struct padlist PADLIST;
67634234 2642typedef AV PAD;
9b7476d7 2643typedef struct padnamelist PADNAMELIST;
0f94cb1f 2644typedef struct padname PADNAME;
67634234 2645
93c10d60
FC		 2646/* enable PERL_COPY_ON_WRITE by default */
2647#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2648# define PERL_COPY_ON_WRITE
13b0f67d 2649#endif
07d01d6e 2650
93c10d60 2651#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2652# define PERL_ANY_COW
9f351b45
DM		 2653#else
2654# define PERL_SAWAMPERSAND
db2c6cb3
FC		 2655#endif
2656
40653c20
FC		 2657#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2658# error PERL_DEBUG_READONLY_OPS only works with ithreads
2659#endif
2660
378cc40b 2661#include "handy.h"
64935bc6 2662#include "charclass_invlists.h"
a0d0e21e 2663
6b8eaf93 2664#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH		 2665# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2666# define USE_64_BIT_RAWIO /* implicit */
2667# endif
4564133c
JH		 2668#endif
2669
6b8eaf93
JH		 2670/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2671 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2672 * however, because operating systems like to do that themself. */
2673#ifndef FSEEKSIZE
2674# ifdef HAS_FSEEKO
2675# define FSEEKSIZE LSEEKSIZE
2676# else
2677# define FSEEKSIZE LONGSIZE
d460ef45 2678# endif
6b8eaf93
JH		 2679#endif
2680
2681#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH		 2682# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2683# define USE_64_BIT_STDIO /* implicit */
2684# endif
2685#endif
4564133c 2686
09458382 2687#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH		 2688# ifdef HAS_OFF64_T
2689# undef Off_t
2690# define Off_t off64_t
2691# undef LSEEKSIZE
2692# define LSEEKSIZE 8
5ff3f7a4 2693# endif
d9b3e12d
JH		 2694/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2695 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2696 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH		 2697# if defined(USE_OPEN64)
2698# define open open64
5ff3f7a4 2699# endif
d9b3e12d
JH		 2700# if defined(USE_LSEEK64)
2701# define lseek lseek64
6b8eaf93
JH		 2702# else
2703# if defined(USE_LLSEEK)
2704# define lseek llseek
2705# endif
d9b3e12d
JH		 2706# endif
2707# if defined(USE_STAT64)
2708# define stat stat64
2709# endif
2710# if defined(USE_FSTAT64)
2711# define fstat fstat64
2712# endif
2713# if defined(USE_LSTAT64)
2714# define lstat lstat64
2715# endif
2716# if defined(USE_FLOCK64)
2717# define flock flock64
2718# endif
2719# if defined(USE_LOCKF64)
2720# define lockf lockf64
2721# endif
2722# if defined(USE_FCNTL64)
2723# define fcntl fcntl64
2724# endif
2725# if defined(USE_TRUNCATE64)
2726# define truncate truncate64
2727# endif
2728# if defined(USE_FTRUNCATE64)
2729# define ftruncate ftruncate64
2730# endif
2731#endif
2732
2733#ifdef USE_64_BIT_STDIO
2734# ifdef HAS_FPOS64_T
2735# undef Fpos_t
2736# define Fpos_t fpos64_t
2737# endif
2738/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2739 * will trigger defines like the ones below. Some 64-bit environments,
2740 * however, do not. */
2741# if defined(USE_FOPEN64)
2742# define fopen fopen64
2743# endif
2744# if defined(USE_FSEEK64)
6b8eaf93 2745# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH		 2746# endif
2747# if defined(USE_FTELL64)
6b8eaf93 2748# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH		 2749# endif
2750# if defined(USE_FSETPOS64)
2751# define fsetpos fsetpos64
2752# endif
2753# if defined(USE_FGETPOS64)
2754# define fgetpos fgetpos64
2755# endif
2756# if defined(USE_TMPFILE64)
2757# define tmpfile tmpfile64
2758# endif
2759# if defined(USE_FREOPEN64)
2760# define freopen freopen64
5ff3f7a4
GS		 2761# endif
2762#endif
2763
e37778c2 2764#if defined(OS2)
2c2d71f5
JH		 2765# include "iperlsys.h"
2766#endif
2767
748a9306 2768#ifdef DOSISH
19848b3f
JH		 2769# if defined(OS2)
2770# include "os2ish.h"
2771# else
2772# include "dosish.h"
2773# endif
009819bb 2774#elif defined(VMS)
748a9306 2775# include "vmsish.h"
009819bb 2776#elif defined(PLAN9)
19848b3f 2777# include "./plan9/plan9ish.h"
009819bb 2778#elif defined(__VOS__)
196918b0
PG		 2779# ifdef __GNUC__
2780# include "./vos/vosish.h"
2781# else
2782# include "vos/vosish.h"
2783# endif
009819bb 2784#elif defined(__SYMBIAN32__)
27da23d5 2785# include "symbian/symbianish.h"
009819bb 2786#elif defined(__HAIKU__)
df00ff3b 2787# include "haiku/haikuish.h"
009819bb 2788#else
19848b3f 2789# include "unixish.h"
13b6e58c
JH		 2790#endif
2791
2946a158
JH		 2792/* NSIG logic from Configure --> */
2793/* Strange style to avoid deeply-nested #if/#else/#endif */
2794#ifndef NSIG
2795# ifdef _NSIG
2796# define NSIG (_NSIG)
2797# endif
2798#endif
2799
2800#ifndef NSIG
2801# ifdef SIGMAX
2802# define NSIG (SIGMAX+1)
2803# endif
2804#endif
2805
2806#ifndef NSIG
2807# ifdef SIG_MAX
2808# define NSIG (SIG_MAX+1)
2809# endif
2810#endif
2811
2812#ifndef NSIG
2813# ifdef _SIG_MAX
2814# define NSIG (_SIG_MAX+1)
2815# endif
2816#endif
2817
2818#ifndef NSIG
2819# ifdef MAXSIG
2820# define NSIG (MAXSIG+1)
2821# endif
2822#endif
2823
2824#ifndef NSIG
2825# ifdef MAX_SIG
2826# define NSIG (MAX_SIG+1)
2827# endif
2828#endif
2829
2830#ifndef NSIG
2831# ifdef SIGARRAYSIZE
2832# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2833# endif
2834#endif
2835
2836#ifndef NSIG
2837# ifdef _sys_nsig
2838# define NSIG (_sys_nsig) /* Solaris 2.5 */
2839# endif
2840#endif
2841
2842/* Default to some arbitrary number that's big enough to get most
2843 of the common signals.
2844*/
2845#ifndef NSIG
2846# define NSIG 50
2847#endif
2848/* <-- NSIG logic from Configure */
2849
13b6e58c
JH		 2850#ifndef NO_ENVIRON_ARRAY
2851# define USE_ENVIRON_ARRAY
2852#endif
32f822de 2853
c77b533b
JH		 2854/*
2855 * initialise to avoid floating-point exceptions from overflow, etc
2856 */
2857#ifndef PERL_FPU_INIT
2858# ifdef HAS_FPSETMASK
2859# if HAS_FLOATINGPOINT_H
2860# include <floatingpoint.h>
2861# endif
ad3a8c67
NC		 2862/* Some operating systems have this as a macro, which in turn expands to a comma
2863 expression, and the last sub-expression is something that gets calculated,
2864 and then they have the gall to warn that a value computed is not used. Hence
2865 cast to void. */
2866# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2867# else
2f42fcb0 2868# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2869# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS		 2870# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2871# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH		 2872# else
2873# define PERL_FPU_INIT
2f42fcb0 2874
7014c407 2875# endif
c77b533b
JH		 2876# endif
2877#endif
b35112e7
CS		 2878#ifndef PERL_FPU_PRE_EXEC
2879# define PERL_FPU_PRE_EXEC {
2880# define PERL_FPU_POST_EXEC }
2881#endif
c77b533b 2882
a308b05a
JH		 2883/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2884 * We need to reenable the "invalid" trap because otherwise generation
2885 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2886 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2887#ifdef __osf__
2888# include <machine/fpu.h>
2889# define PERL_SYS_FPU_INIT \
2890 STMT_START { \
2891 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2892 signal(SIGFPE, SIG_IGN); \
2893 } STMT_END
2894#endif
94a08944
JH		 2895/* In IRIX the default for Flush to Zero bit is true,
2896 * which means that results going below the minimum of normal
2897 * floating points go to zero, instead of going denormal/subnormal.
2898 * This is unlike almost any other system running Perl, so let's clear it.
2899 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2900 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2901 *
2902 * XXX The flush-to-zero behaviour should be a Configure scan.
2903 * To change the behaviour usually requires some system-specific
2904 * incantation, though, like the below. */
2905#ifdef __sgi
2906# include <sys/fpu.h>
2907# define PERL_SYS_FPU_INIT \
2908 STMT_START { \
2909 union fpc_csr csr; \
2910 csr.fc_word = get_fpc_csr(); \
2911 csr.fc_struct.flush = 0; \
2912 set_fpc_csr(csr.fc_word); \
2913 } STMT_END
2914#endif
a308b05a
JH		 2915
2916#ifndef PERL_SYS_FPU_INIT
2917# define PERL_SYS_FPU_INIT NOOP
2918#endif
2919
cbec8ebe
DM		 2920#ifndef PERL_SYS_INIT3_BODY
2921# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ		 2922#endif
2923
eb533572 2924/*
dcccc8ff
KW		 2925=head1 Miscellaneous Functions
2926
4ad9e498 2927=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2928Provides system-specific tune up of the C runtime environment necessary to
72d33970 2929run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2930any Perl interpreters.
2931
4ad9e498 2932=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2933Provides system-specific tune up of the C runtime environment necessary to
72d33970 2934run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2935any Perl interpreters.
2936
2937=for apidoc Am|void|PERL_SYS_TERM|
2938Provides system-specific clean up of the C runtime environment after
72d33970 2939running Perl interpreters. This should be called only once, after
eb533572
DM		 2940freeing any remaining Perl interpreters.
2941
2942=cut
2943 */
2944
cbec8ebe
DM		 2945#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2946#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2947#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2948
be708cc0
JH		 2949#ifndef PERL_WRITE_MSG_TO_CONSOLE
2950# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2951#endif
2952
0f31cffe
GS		 2953#ifndef MAXPATHLEN
2954# ifdef PATH_MAX
b990c8b2
JH		 2955# ifdef _POSIX_PATH_MAX
2956# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH		 2957/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2958 * included the null byte or not. Later amendments of POSIX,
2959 * XPG4, the Austin Group, and the Single UNIX Specification
2960 * all explicitly include the null byte in the PATH_MAX.
2961 * Ditto for _POSIX_PATH_MAX. */
2962# define MAXPATHLEN PATH_MAX
b990c8b2 2963# else
09448d78 2964# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2965# endif
2966# else
2967# define MAXPATHLEN (PATH_MAX+1)
2968# endif
0f31cffe 2969# else
d552bce8 2970# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS		 2971# endif
2972#endif
2973
c80263a8
SH		 2974/* In case Configure was not used (we are using a "canned config"
2975 * such as Win32, or a cross-compilation setup, for example) try going
2976 * by the gcc major and minor versions. One useful URL is
2977 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2978 * but contrary to this information warn_unused_result seems
2979 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD		 2980 * Also, when building extensions with an installed perl, this allows
2981 * the user to upgrade gcc and get the right attributes, rather than
2982 * relying on the list generated at Configure time. --AD
c80263a8
SH		 2983 * Set these up now otherwise we get confused when some of the <*thread.h>
2984 * includes below indirectly pull in <perlio.h> (which needs to know if we
2985 * have HASATTRIBUTE_FORMAT).
2986 */
2987
4d7c7898 2988#ifndef PERL_MICRO
fc2007d4 2989#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS		 2990# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2991# define HASATTRIBUTE_DEPRECATED
2992# endif
c80263a8
SH		 2993# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2994# define HASATTRIBUTE_FORMAT
63cdf24b
SH		 2995# if defined __MINGW32__
2996# define PRINTF_FORMAT_NULL_OK
2997# endif
c80263a8
SH		 2998# endif
2999# if __GNUC__ >= 3 /* 3.0 -> */
3000# define HASATTRIBUTE_MALLOC
3001# endif
3002# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3003# define HASATTRIBUTE_NONNULL
3004# endif
3005# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3006# define HASATTRIBUTE_NORETURN
3007# endif
3008# if __GNUC__ >= 3 /* gcc 3.0 -> */
3009# define HASATTRIBUTE_PURE
3010# endif
42bf5550 3011# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH		 3012# define HASATTRIBUTE_UNUSED
3013# endif
d324fe49
AD		 3014# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3015# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3016# endif
c80263a8
SH		 3017# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3018# define HASATTRIBUTE_WARN_UNUSED_RESULT
3019# endif
3020#endif
00f254e2 3021#endif /* #ifndef PERL_MICRO */
c80263a8 3022
3db8f154 3023/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3024 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS		 3025 * this results in many functions being undeclared which bothers C++
3026 * May make sense to have threads after "*ish.h" anyway
3027 */
3028
3db8f154 3029#if defined(USE_ITHREADS)
2986a63f
JH		 3030# ifdef NETWARE
3031# include <nw5thread.h>
3032# else
32f822de
GS		 3033# ifdef WIN32
3034# include <win32thread.h>
3035# else
dd96f567
IZ		 3036# ifdef OS2
3037# include "os2thread.h"
3038# else
7f3d1cf1 3039# ifdef I_MACH_CTHREADS
bdd66968 3040# include <mach/cthreads.h>
7f3d1cf1
BH		 3041typedef cthread_t perl_os_thread;
3042typedef mutex_t perl_mutex;
3043typedef condition_t perl_cond;
3044typedef void * perl_key;
3045# else /* Posix threads */
1f5ae88c
JH		 3046# ifdef I_PTHREAD
3047# include <pthread.h>
3048# endif
7f3d1cf1
BH		 3049typedef pthread_t perl_os_thread;
3050typedef pthread_mutex_t perl_mutex;
3051typedef pthread_cond_t perl_cond;
3052typedef pthread_key_t perl_key;
3053# endif /* I_MACH_CTHREADS */
dd96f567 3054# endif /* OS2 */
32f822de 3055# endif /* WIN32 */
ef4abe76 3056# endif /* NETWARE */
3db8f154 3057#endif /* USE_ITHREADS */
c5be433b 3058
66a93824 3059#if defined(WIN32)
1feb2720 3060# include "win32.h"
c5be433b
GS		 3061#endif
3062
2986a63f
JH		 3063#ifdef NETWARE
3064# include "netware.h"
3065#endif
3066
e5218da5 3067#define STATUS_UNIX PL_statusvalue
68dc0745 3068#ifdef VMS
6b88bc9c 3069# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM		 3070/*
3071 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3072 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM		 3073 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3074 * be updated also.
3075 */
3076# include <stsdef.h>
3077# include <ssdef.h>
3078/* Presume this because if VMS changes it, it will require a new
3079 * set of APIs for waiting on children for binary compatibility.
3080 */
3081# define child_offset_bits (8)
3082# ifndef C_FAC_POSIX
3083# define C_FAC_POSIX 0x35A000
3084# endif
3085
3086/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3087 * platform from the existing UNIX or Native status values.
3088 */
3089
37038d91 3090# define STATUS_EXIT \
7a7fd8e0
JM		 3091 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3092 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3093
7a7fd8e0 3094
fb38d079
JM		 3095/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3096 * exit code and shifts the UNIX value over the correct number of bits to
3097 * be a child status. Usually the number of bits is 8, but that could be
3098 * platform dependent. The NATIVE status code is presumed to have either
3099 * from a child process.
7a7fd8e0
JM		 3100 */
3101
fb38d079
JM		 3102/* This is complicated. The child processes return a true native VMS
3103 status which must be saved. But there is an assumption in Perl that
3104 the UNIX child status has some relationship to errno values, so
00f254e2 3105 Perl tries to translate it to text in some of the tests.
fb38d079
JM		 3106 In order to get the string translation correct, for the error, errno
3107 must be EVMSERR, but that generates a different text message
3108 than what the test programs are expecting. So an errno value must
3109 be derived from the native status value when an error occurs.
3110 That will hide the true native status message. With this version of
3111 perl, the true native child status can always be retrieved so that
3112 is not a problem. But in this case, Pl_statusvalue and errno may
3113 have different values in them.
3114 */
7a7fd8e0 3115
fb38d079 3116# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3117 STMT_START { \
2fbb330f
JM		 3118 I32 evalue = (I32)n; \
3119 if (evalue == EVMSERR) { \
3120 PL_statusvalue_vms = vaxc$errno; \
3121 PL_statusvalue = evalue; \
7a7fd8e0 3122 } else { \
2fbb330f 3123 PL_statusvalue_vms = evalue; \
fb38d079 3124 if (evalue == -1) { \
3280af22 3125 PL_statusvalue = -1; \
7a7fd8e0
JM		 3126 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3127 } else \
fb38d079 3128 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3129 set_vaxc_errno(evalue); \
fb38d079
JM		 3130 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3131 set_errno(EVMSERR); \
3132 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3133 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3134 } \
68dc0745 3135 } STMT_END
7a7fd8e0 3136
68dc0745 3137# ifdef VMSISH_STATUS
e5218da5 3138# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3139# else
e5218da5 3140# define STATUS_CURRENT STATUS_UNIX
68dc0745 3141# endif
7a7fd8e0
JM		 3142
3143 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3144 * the NATIVE status to an equivalent value. Can not be used to translate
3145 * exit code values as exit code values are not guaranteed to have any
3146 * relationship at all to errno values.
3147 * This is used when Perl is forcing errno to have a specific value.
3148 */
e5218da5 3149# define STATUS_UNIX_SET(n) \
68dc0745 3150 STMT_START { \
7a7fd8e0 3151 I32 evalue = (I32)n; \
0968cdad 3152 PL_statusvalue = evalue; \
3280af22 3153 if (PL_statusvalue != -1) { \
0968cdad
JM		 3154 if (PL_statusvalue != EVMSERR) { \
3155 PL_statusvalue &= 0xFFFF; \
3156 if (MY_POSIX_EXIT) \
3157 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3158 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3159 } \
3160 else { \
3161 PL_statusvalue_vms = vaxc$errno; \
3162 } \
68dc0745 3163 } \
0968cdad
JM		 3164 else PL_statusvalue_vms = SS$_ABORT; \
3165 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM		 3166 } STMT_END
3167
3168 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM		 3169 * the NATIVE error status based on it.
3170 *
3171 * When in the default mode to comply with the Perl VMS documentation,
3172 * 0 is a success and any other code sets the NATIVE status to a failure
3173 * code of SS$_ABORT.
fb38d079
JM		 3174 *
3175 * In the new POSIX EXIT mode, native status will be set so that the
3176 * actual exit code will can be retrieved by the calling program or
3177 * shell.
3178 *
3179 * If the exit code is not clearly a UNIX parent or child exit status,
3180 * it will be passed through as a VMS status.
7a7fd8e0
JM		 3181 */
3182
fb38d079 3183# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM		 3184 STMT_START { \
3185 I32 evalue = (I32)n; \
3186 PL_statusvalue = evalue; \
e08e1e1d
JM		 3187 if (MY_POSIX_EXIT) { \
3188 if (evalue <= 0xFF00) { \
3189 if (evalue > 0xFF) \
3190 evalue = (evalue >> child_offset_bits) & 0xFF; \
3191 PL_statusvalue_vms = \
3192 (C_FAC_POSIX | (evalue << 3 ) | \
3193 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3194 } else /* forgive them Perl, for they have sinned */ \
3195 PL_statusvalue_vms = evalue; \
3196 } else { \
3197 if (evalue == 0) \
3198 PL_statusvalue_vms = SS$_NORMAL; \
3199 else if (evalue <= 0xFF00) \
3200 PL_statusvalue_vms = SS$_ABORT; \
3201 else { /* forgive them Perl, for they have sinned */ \
3202 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3203 else PL_statusvalue_vms = vaxc$errno; \
3204 /* And obviously used a VMS status value instead of UNIX */ \
3205 PL_statusvalue = EVMSERR; \
3206 } \
3207 set_vaxc_errno(PL_statusvalue_vms); \
3208 } \
68dc0745 3209 } STMT_END
fb38d079 3210
e08e1e1d 3211
6ac6a52b
JM		 3212 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3213 * and sets the NATIVE error status based on it. This special case
3214 * is needed to maintain compatibility with past VMS behavior.
3215 *
3216 * In the default mode on VMS, this number is passed through as
3217 * both the NATIVE and UNIX status. Which makes it different
3218 * that the STATUS_UNIX_EXIT_SET.
3219 *
3220 * In the new POSIX EXIT mode, native status will be set so that the
3221 * actual exit code will can be retrieved by the calling program or
3222 * shell.
3223 *
1a3aec58
JM		 3224 * A POSIX exit code is from 0 to 255. If the exit code is higher
3225 * than this, it needs to be assumed that it is a VMS exit code and
3226 * passed through.
6ac6a52b
JM		 3227 */
3228
3229# define STATUS_EXIT_SET(n) \
3230 STMT_START { \
3231 I32 evalue = (I32)n; \
3232 PL_statusvalue = evalue; \
3233 if (MY_POSIX_EXIT) \
1a3aec58
JM		 3234 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3235 PL_statusvalue_vms = \
3236 (C_FAC_POSIX | (evalue << 3 ) | \
3237 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM		 3238 else \
3239 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3240 set_vaxc_errno(PL_statusvalue_vms); \
3241 } STMT_END
3242
fb38d079
JM		 3243
3244 /* This macro forces a success status */
7a7fd8e0
JM		 3245# define STATUS_ALL_SUCCESS \
3246 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM		 3247
3248 /* This macro forces a failure status */
7a7fd8e0
JM		 3249# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3250 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3251 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3252
68dc0745 3253#else
e5218da5 3254# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3255# if defined(WCOREDUMP)
37038d91 3256# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3257 STMT_START { \
3258 PL_statusvalue_posix = (n); \
3259 if (PL_statusvalue_posix == -1) \
3260 PL_statusvalue = -1; \
3261 else { \
3262 PL_statusvalue = \
3263 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3264 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3265 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3266 } \
3267 } STMT_END
3268# elif defined(WIFEXITED)
37038d91 3269# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3270 STMT_START { \
3271 PL_statusvalue_posix = (n); \
3272 if (PL_statusvalue_posix == -1) \
3273 PL_statusvalue = -1; \
3274 else { \
3275 PL_statusvalue = \
3276 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3277 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3278 } \
3279 } STMT_END
3280# else
37038d91 3281# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3282 STMT_START { \
3283 PL_statusvalue_posix = (n); \
3284 if (PL_statusvalue_posix == -1) \
3285 PL_statusvalue = -1; \
3286 else { \
3287 PL_statusvalue = \
3288 PL_statusvalue_posix & 0xFFFF; \
3289 } \
3290 } STMT_END
3291# endif
3292# define STATUS_UNIX_SET(n) \
68dc0745 3293 STMT_START { \
3280af22
NIS		 3294 PL_statusvalue = (n); \
3295 if (PL_statusvalue != -1) \
3296 PL_statusvalue &= 0xFFFF; \
68dc0745 3297 } STMT_END
7a7fd8e0 3298# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3299# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3300# define STATUS_CURRENT STATUS_UNIX
37038d91 3301# define STATUS_EXIT STATUS_UNIX
e5218da5
GA		 3302# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3303# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745 3304#endif
3305
cc3604b1
GS		 3306/* flags in PL_exit_flags for nature of exit() */
3307#define PERL_EXIT_EXPECTED 0x01
31d77e54 3308#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM		 3309#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3310#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3311
b79b76e0 3312#ifndef PERL_CORE
a7cb1f99 3313/* format to use for version numbers in file/directory names */
273cf8d1 3314/* XXX move to Configure? */
b79b76e0
NC		 3315/* This was only ever used for the current version, and that can be done at
3316 compile time, as PERL_FS_VERSION, so should we just delete it? */
3317# ifndef PERL_FS_VER_FMT
3318# define PERL_FS_VER_FMT "%d.%d.%d"
3319# endif
3320#endif
3321
3322#ifndef PERL_FS_VERSION
3323# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS		 3324#endif
3325
45bc9206 3326/* This defines a way to flush all output buffers. This may be a
76549fef
JH		 3327 * performance issue, so we allow people to disable it. Also, if
3328 * we are using stdio, there are broken implementations of fflush(NULL)
3329 * out there, Solaris being the most prominent.
45bc9206
GS		 3330 */
3331#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3332# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3333# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH		 3334# else
3335# ifdef FFLUSH_ALL
3336# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3337# else
c5be433b 3338# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3339# endif
66fe083f 3340# endif
45bc9206
GS		 3341#endif
3342
7766f137
GS		 3343#ifndef PERL_WAIT_FOR_CHILDREN
3344# define PERL_WAIT_FOR_CHILDREN NOOP
3345#endif
3346
ba869deb 3347/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS		 3348#ifndef PERL_SET_INTERP
3349# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3350#endif
3351
3352#ifndef PERL_GET_INTERP
3353# define PERL_GET_INTERP (PL_curinterp)
3354#endif
3355
54aff467 3356#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3357# ifdef MULTIPLICITY
ba869deb 3358# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3359# endif
ba869deb
GS		 3360# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3361#endif
3362
00f254e2 3363/*
8896765a 3364 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3365 All that is required is that the perl source does not
00f254e2
KW		 3366 use "%-p" or "%-<number>p" or "%<number>p" formats.
3367 These formats will still work in perl code.
486ec47a 3368 See comments in sv.c for further details.
8896765a 3369
8896765a 3370 Robin Barker 2005-07-14
f46d31f2 3371
00f254e2 3372 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3373*/
8896765a
RB		 3374
3375#ifndef SVf_
63ce7bf0 3376# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS		 3377#endif
3378
8896765a 3379#ifndef SVf
104abab4 3380# define SVf "-p"
d2560b70
RB		 3381#endif
3382
014ead4b 3383#ifndef SVf32
8896765a 3384# define SVf32 SVf_(32)
014ead4b
RB		 3385#endif
3386
3387#ifndef SVf256
8896765a
RB		 3388# define SVf256 SVf_(256)
3389#endif
3390
be2597df
MHM		 3391#define SVfARG(p) ((void*)(p))
3392
20023040
FC		 3393#ifndef HEKf
3394# define HEKf "2p"
3395#endif
3396
b8fa5213
FC		 3397/* Not ideal, but we cannot easily include a number in an already-numeric
3398 * format sequence. */
3399#ifndef HEKf256
3400# define HEKf256 "3p"
3401#endif
3402
20023040
FC		 3403#define HEKfARG(p) ((void*)(p))
3404
b17a0679
FC		 3405/* Takes three arguments: is_utf8, length, str */
3406#ifndef UTF8f
61608bb7 3407# define UTF8f "d%" UVuf "%4p"
b17a0679
FC		 3408#endif
3409#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3410
0f94cb1f
FC		 3411#define PNf UTF8f
3412#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3413
f46d31f2 3414#ifdef PERL_CORE
486ec47a 3415/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB		 3416# undef UVf
3417#else
170cd9e9
NC		 3418# ifndef UVf
3419# define UVf UVuf
3420# endif
d2560b70
RB		 3421#endif
3422
fcdf39cf
RGS		 3423#ifdef HASATTRIBUTE_DEPRECATED
3424# define __attribute__deprecated__ __attribute__((deprecated))
3425#endif
0dbb1585
AL		 3426#ifdef HASATTRIBUTE_FORMAT
3427# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3428#endif
3429#ifdef HASATTRIBUTE_MALLOC
77785eea 3430# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3431#endif
0dbb1585 3432#ifdef HASATTRIBUTE_NONNULL
abb2c242 3433# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3434#endif
0dbb1585 3435#ifdef HASATTRIBUTE_NORETURN
abb2c242 3436# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3437#endif
0dbb1585 3438#ifdef HASATTRIBUTE_PURE
abb2c242 3439# define __attribute__pure__ __attribute__((pure))
f22be1b8 3440#endif
0dbb1585
AL		 3441#ifdef HASATTRIBUTE_UNUSED
3442# define __attribute__unused__ __attribute__((unused))
3443#endif
3444#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3445# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH		 3446#endif
3447
0dbb1585 3448/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS		 3449#ifndef __attribute__deprecated__
3450# define __attribute__deprecated__
3451#endif
0dbb1585
AL		 3452#ifndef __attribute__format__
3453# define __attribute__format__(x,y,z)
3454#endif
f22be1b8 3455#ifndef __attribute__malloc__
abb2c242 3456# define __attribute__malloc__
f22be1b8
JH		 3457#endif
3458#ifndef __attribute__nonnull__
abb2c242 3459# define __attribute__nonnull__(a)
f22be1b8
JH		 3460#endif
3461#ifndef __attribute__noreturn__
abb2c242 3462# define __attribute__noreturn__
f22be1b8
JH		 3463#endif
3464#ifndef __attribute__pure__
abb2c242 3465# define __attribute__pure__
f22be1b8 3466#endif
0dbb1585
AL		 3467#ifndef __attribute__unused__
3468# define __attribute__unused__
3469#endif
f22be1b8 3470#ifndef __attribute__warn_unused_result__
abb2c242
JH		 3471# define __attribute__warn_unused_result__
3472#endif
3473
6d59e610
LM		 3474#ifdef I_ASSERT
3475# if !defined(DEBUGGING) && !defined(NDEBUG)
3476# define NDEBUG 1
3477# endif
cd13e623
JH		 3478# include <assert.h>
3479#endif
3480
0dbb1585
AL		 3481/* For functions that are marked as __attribute__noreturn__, it's not
3482 appropriate to call return. In either case, include the lint directive.
3483 */
3484#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3485# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3486#else
bc3d2941 3487# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH		 3488#endif
3489
cdfeb707
RB		 3490/* Some OS warn on NULL format to printf */
3491#ifdef PRINTF_FORMAT_NULL_OK
3492# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3493#else
00f254e2 3494# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB		 3495#endif
3496
635aebb7 3497#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL		 3498# define EXPECT(expr,val) __builtin_expect(expr,val)
3499#else
3500# define EXPECT(expr,val) (expr)
3501#endif
6d5abc62
NC		 3502#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3503#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL		 3504#ifdef HAS_BUILTIN_CHOOSE_EXPR
3505/* placeholder */
3506#endif
b37c2d43 3507
5074d4c5
LM		 3508/* STATIC_ASSERT_GLOBAL/STATIC_ASSERT_STMT are like assert(), but for compile
3509 time invariants. That is, their argument must be a constant expression that
3510 can be verified by the compiler. This expression can contain anything that's
3511 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3512 the expression evaluates to 0, compilation fails.
3513 Because they generate no runtime code (i.e. their use is "free"), they're
3514 always active, even under non-DEBUGGING builds.
3515 STATIC_ASSERT_GLOBAL expands to a declaration and is suitable for use at
3516 file scope (outside of any function).
3517 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3518 function.
3519*/
7ea096df 3520#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610
LM		 3521/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3522 builtin in C++11.
3523*/
7ea096df 3524/* IBM XL C V11 does not support _Static_assert, no matter what <assert.h> says */
d0044f85 3525# define STATIC_ASSERT_GLOBAL(COND) static_assert(COND, #COND)
6d59e610
LM		 3526#else
3527/* We use a bit-field instead of an array because gcc accepts
3528 'typedef char x[n]' where n is not a compile-time constant.
3529 We want to enforce constantness.
3530*/
3531# define STATIC_ASSERT_2(COND, SUFFIX) \
3532 typedef struct { \
3533 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3534 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3535# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3536# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3537#endif
3538/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3539 error (static_assert is a declaration, and only statements can have labels).
3540*/
3541#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD		 3542
3543#ifndef __has_builtin
3544# define __has_builtin(x) 0 /* not a clang style compiler */
3545#endif
3546
3547/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3548 hint to a compiler about a statement of fact in a function call free
3549 expression, which allows the compiler to generate better machine code.
3550 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3551 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3552 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD		 3553 intrinsic function, see its documents for more details.
3554*/
3555
3556#ifndef DEBUGGING
3557# if __has_builtin(__builtin_unreachable) \
d1020b40 3558 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD		 3559# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3560# elif defined(_MSC_VER)
3561# define ASSUME(x) __assume(x)
3562# elif defined(__ARMCC_VERSION) /* untested */
3563# define ASSUME(x) __promise(x)
3564# else
3565/* a random compiler might define assert to its own special optimization token
3566 so pass it through to C lib as a last resort */
3567# define ASSUME(x) assert(x)
3568# endif
3569#else
3570# define ASSUME(x) assert(x)
3571#endif
3572
3573#define NOT_REACHED ASSUME(0)
3574
3fc1aec6 3575/* Some unistd.h's give a prototype for pause() even though
3576 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3577 below to be rejected by the compiler. Sigh.
3fc1aec6 3578*/
3579#ifdef HAS_PAUSE
3580#define Pause pause
3581#else
3582#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 3583#endif
3584
3585#ifndef IOCPARM_LEN
3586# ifdef IOCPARM_MASK
61f1c44b 3587 /* on BSDish systems we're safe */
748a9306
LW		 3588# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3589# else
61f1c44b 3590# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA		 3591 /* on Linux systems we're safe; except when we're not [perl #38223] */
3592# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3593# else
748a9306 3594 /* otherwise guess at what's safe */
61f1c44b
JVD		 3595# define IOCPARM_LEN(x) 256
3596# endif
748a9306 3597# endif
a0d0e21e
LW		 3598#endif
3599
1761cee5 3600#if defined(__CYGWIN__)
521e0776
GS		 3601/* USEMYBINMODE
3602 * This symbol, if defined, indicates that the program should
16fe6d59 3603 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS		 3604 * that a file is in "binary" mode -- that is, that no translation
3605 * of bytes occurs on read or write operations.
3606 */
36894f0b 3607# define USEMYBINMODE /**/
77a40698 3608# include <io.h> /* for setmode() prototype */
16fe6d59 3609# define my_binmode(fp, iotype, mode) \
77a40698 3610 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6 3611#endif
3612
88d10794
JH		 3613#ifdef __CYGWIN__
3614void init_os_extras(void);
3615#endif
3616
cea2e8a9
GS		 3617#ifdef UNION_ANY_DEFINITION
3618UNION_ANY_DEFINITION;
3619#else
3620union any {
3621 void* any_ptr;
3622 I32 any_i32;
ae103e09 3623 U32 any_u32;
cea2e8a9 3624 IV any_iv;
c6bf6a65 3625 UV any_uv;
cea2e8a9 3626 long any_long;
9febdf04 3627 bool any_bool;
c76ac1ee 3628 void (*any_dptr) (void*);
acfe0abc 3629 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS		 3630};
3631#endif
3632
acfe0abc 3633typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS		 3634
3635#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM		 3636#define FILTER_DATA(idx) \
3637 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3638#define FILTER_ISREADER(idx) \
3639 (PL_parser && PL_parser->rsfp_filters \
3640 && idx >= AvFILLp(PL_parser->rsfp_filters))
3641#define PERL_FILTER_EXISTS(i) \
3642 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3643 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3644
c5078cac
JH		 3645#if defined(_AIX) && !defined(_AIX43)
3646#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3647/* We cannot include <crypt.h> to get the struct crypt_data
3648 * because of setkey prototype problems when threading */
3649typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3650 /* From OSF, Not needed in AIX
3651 char C[28], D[28];
3652 */
3653 char E[48];
3654 char KS[16][48];
3655 char block[66];
3656 char iobuf[16];
3657} CRYPTD;
3658#endif /* threading */
3659#endif /* AIX */
3660
fc6bde6f
DD		 3661#ifndef PERL_CALLCONV
3662# ifdef __cplusplus
3663# define PERL_CALLCONV extern "C"
3664# else
3665# define PERL_CALLCONV
3666# endif
3667#endif
3668#ifndef PERL_CALLCONV_NO_RET
3669# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3670#endif
3671
3672/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3673 dont have a noreturn as a declaration specifier
3674*/
3675#ifndef PERL_STATIC_NO_RET
3676# define PERL_STATIC_NO_RET STATIC
3677#endif
3678/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3679 builds that dont have a noreturn as a declaration specifier
3680*/
3681#ifndef PERL_STATIC_INLINE_NO_RET
3682# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3683#endif
3684
e37778c2 3685#if !defined(OS2)
2c2d71f5
JH		 3686# include "iperlsys.h"
3687#endif
504f80c1 3688
9c12f1e5 3689#ifdef __LIBCATAMOUNT__
00f254e2 3690#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS		 3691#undef HAS_GROUP
3692#define FAKE_BIT_BUCKET
3693#endif
3694
d10dc2ae
JH		 3695/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3696 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3697 * defined by Configure, despite their names being similar to the
3698 * other defines like USE_ITHREADS. Configure in fact knows nothing
3699 * about the randomised hashes. Therefore to enable/disable the hash
3700 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3701#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3702# define USE_HASH_SEED
504f80c1
JH		 3703#endif
3704
598921a7
NC		 3705/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3706 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3707 * it's not really needed.
3708 */
3709#if defined(WIN32)
3710# define YYTOKENTYPE
3711#endif
3712#include "perly.h"
3713
598921a7 3714
654eccd5
JD		 3715/* macros to define bit-fields in structs. */
3716#ifndef PERL_BITFIELD8
3717# define PERL_BITFIELD8 unsigned
3718#endif
3719#ifndef PERL_BITFIELD16
3720# define PERL_BITFIELD16 unsigned
3721#endif
3722#ifndef PERL_BITFIELD32
3723# define PERL_BITFIELD32 unsigned
3724#endif
3725
79072805 3726#include "sv.h"
288b8c02 3727#include "regexp.h"
378cc40b 3728#include "util.h"
8d063cd8 3729#include "form.h"
79072805 3730#include "gv.h"
dd2155a4 3731#include "pad.h"
79072805 3732#include "cv.h"
abdd5c84 3733#include "opnames.h"
79072805 3734#include "op.h"