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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
70febf4f
CB		 31/* this is used for functions which take a depth trailing
32 * argument under debugging */
33#ifdef DEBUGGING
34#define _pDEPTH ,U32 depth
35#define _aDEPTH ,depth
36#else
37#define _pDEPTH
38#define _aDEPTH
39#endif
40
7dc3eb73 41/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
7dc3eb73
JH		 43 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
44
45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
46 * all the C99 features are there and are correct. */
9267464d 47#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
996959af 48 defined(_STDC_C99) || defined(__c99)
86a3cabf 49# define HAS_C99 1
86a3cabf
JH		 50#endif
51
2c2d71f5
JH		 52/* See L<perlguts/"The Perl API"> for detailed notes on
53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
54
ac6bedea
JH		 55/* Note that from here --> to <-- the same logic is
56 * repeated in makedef.pl, so be certain to update
57 * both places when editing. */
58
6f4183fe 59#ifdef USE_ITHREADS
acfe0abc 60# if !defined(MULTIPLICITY)
6f4183fe
GS		 61# define MULTIPLICITY
62# endif
63#endif
64
27da23d5
JH		 65#ifdef PERL_GLOBAL_STRUCT_PRIVATE
66# ifndef PERL_GLOBAL_STRUCT
67# define PERL_GLOBAL_STRUCT
68# endif
69#endif
97aff369 70
27da23d5
JH		 71#ifdef PERL_GLOBAL_STRUCT
72# ifndef MULTIPLICITY
73# define MULTIPLICITY
74# endif
75#endif
76
97aff369
JH		 77#ifdef MULTIPLICITY
78# ifndef PERL_IMPLICIT_CONTEXT
79# define PERL_IMPLICIT_CONTEXT
80# endif
81#endif
82
026fd48b
GH		 83/* undef WIN32 when building on Cygwin (for libwin32) - gph */
84#ifdef __CYGWIN__
85# undef WIN32
86# undef _WIN32
87#endif
88
27da23d5
JH		 89#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
90# ifndef SYMBIAN
91# define SYMBIAN
92# endif
93#endif
94
a0fd4948 95#ifdef __SYMBIAN32__
27da23d5
JH		 96# include "symbian/symbian_proto.h"
97#endif
98
99/* Any stack-challenged places. The limit varies (and often
100 * is configurable), but using more than a kilobyte of stack
101 * is usually dubious in these systems. */
739a0b84
NC		 102#if defined(__SYMBIAN32__)
103/* Symbian: need to work around the SDK features. *
27da23d5
JH		 104 * On WINS: MS VC5 generates calls to _chkstk, *
105 * if a "large" stack frame is allocated. *
106 * gcc on MARM does not generate calls like these. */
107# define USE_HEAP_INSTEAD_OF_STACK
108#endif
109
dd134d2c 110/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 111/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
14795193 112#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32)
10bc17b6
JH		 113# define USE_REENTRANT_API
114#endif
115
ac6bedea
JH		 116/* <--- here ends the logic shared by perl.h and makedef.pl */
117
9ea40801
SH		 118/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
119#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
120# define USING_MSVC6
121#endif
122
cf5a8da6
MHM		 123#undef START_EXTERN_C
124#undef END_EXTERN_C
125#undef EXTERN_C
126#ifdef __cplusplus
127# define START_EXTERN_C extern "C" {
128# define END_EXTERN_C }
129# define EXTERN_C extern "C"
130#else
131# define START_EXTERN_C
132# define END_EXTERN_C
133# define EXTERN_C extern
134#endif
135
17a6c8e3
AD		 136/* Fallback definitions in case we don't have definitions from config.h.
137 This should only matter for systems that don't use Configure and
138 haven't been modified to define PERL_STATIC_INLINE yet.
139*/
140#if !defined(PERL_STATIC_INLINE)
141# ifdef HAS_STATIC_INLINE
142# define PERL_STATIC_INLINE static inline
143# else
144# define PERL_STATIC_INLINE static
145# endif
146#endif
147
da5fdda8 148#if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS)
27da23d5 149# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 150 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 151# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
27da23d5
JH		 152# else
153# define PERL_GET_VARS() PL_VarsPtr
154# endif
27da23d5
JH		 155#endif
156
f0e5c859
DD		 157/* this used to be off by default, now its on, see perlio.h */
158#define PERLIO_FUNCS_CONST
159
5aaab254 160#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
27da23d5
JH		 161
162#ifdef PERL_GLOBAL_STRUCT
163# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
164#else
165# define dVAR dNOOP
166#endif
167
c5be433b 168#ifdef PERL_IMPLICIT_CONTEXT
3db8f154
MB		 169# ifndef MULTIPLICITY
170# define MULTIPLICITY
c5be433b 171# endif
e8dda941 172# define tTHX PerlInterpreter*
5aaab254 173# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 174# define aTHX my_perl
9399a70c 175# define aTHXa(a) aTHX = (tTHX)a
27da23d5 176# ifdef PERL_GLOBAL_STRUCT
e8dda941 177# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 178# else
e8dda941 179# define dTHXa(a) pTHX = (tTHX)a
27da23d5
JH		 180# endif
181# ifdef PERL_GLOBAL_STRUCT
182# define dTHX dVAR; pTHX = PERL_GET_THX
183# else
184# define dTHX pTHX = PERL_GET_THX
185# endif
c5be433b 186# define pTHX_ pTHX,
c5be433b 187# define aTHX_ aTHX,
4373e329 188# define pTHX_1 2
894356b3
GS		 189# define pTHX_2 3
190# define pTHX_3 4
191# define pTHX_4 5
4373e329
AL		 192# define pTHX_5 6
193# define pTHX_6 7
a3b680e6
AL		 194# define pTHX_7 8
195# define pTHX_8 9
196# define pTHX_9 10
a6fc70e5 197# define pTHX_12 13
e8dda941
JD		 198# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
199# define PERL_TRACK_MEMPOOL
200# endif
201#else
202# undef PERL_TRACK_MEMPOOL
c5be433b
GS		 203#endif
204
76e3520e 205#define STATIC static
16c91539
BM		 206
207#ifndef PERL_CORE
208/* Do not use these macros. They were part of PERL_OBJECT, which was an
209 * implementation of multiplicity using C++ objects. They have been left
210 * here solely for the sake of XS code which has incorrectly
211 * cargo-culted them.
212 */
76e3520e 213#define CPERLscope(x) x
565764a8 214#define CPERLarg void
76e3520e 215#define CPERLarg_
e3b8966e 216#define _CPERLarg
1d583055
GS		 217#define PERL_OBJECT_THIS
218#define _PERL_OBJECT_THIS
219#define PERL_OBJECT_THIS_
312caa8e 220#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 221#define MEMBER_TO_FPTR(name) name
16c91539 222#endif /* !PERL_CORE */
76e3520e 223
16c91539 224#define CALLRUNOPS PL_runops
f9f4320a 225
3ab4a224 226#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 227
16c91539 228#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 229#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 230 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 231 (strbeg),(minend),(sv),(data),(flags))
52a21eb3
DM		 232#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
233 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
f9f4320a
YO		 234 (strend),(flags),(data))
235#define CALLREG_INTUIT_STRING(prog) \
16c91539 236 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 237
f8149455
YO		 238#define CALLREGFREE(prog) \
239 Perl_pregfree(aTHX_ (prog))
240
241#define CALLREGFREE_PVT(prog) \
fc6bde6f 242 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 243
2fdbfb4d 244#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 245 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 246
2fdbfb4d 247#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 248 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
2fdbfb4d
AB		 249
250#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 251 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 252
192b9cd1 253#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 254 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
192b9cd1
AB		 255
256#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 257 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
192b9cd1
AB		 258
259#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 260 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
192b9cd1
AB		 261
262#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 263 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
192b9cd1
AB		 264
265#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 266 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
192b9cd1
AB		 267
268#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 269 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
192b9cd1
AB		 270
271#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 272 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
192b9cd1
AB		 273
274#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 275 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
192b9cd1
AB		 276
277#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 278 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
192b9cd1
AB		 279
280#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 281 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 282
49d7dfbc 283#define CALLREG_PACKAGE(rx) \
16c91539 284 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 285
00f254e2 286#if defined(USE_ITHREADS)
f9f4320a 287#define CALLREGDUPE(prog,param) \
f8149455
YO		 288 Perl_re_dup(aTHX_ (prog),(param))
289
290#define CALLREGDUPE_PVT(prog,param) \
16c91539 291 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 292 : (REGEXP *)NULL)
f9f4320a 293#endif
14dd3ad8 294
a20207d7 295
bcdf7404 296
a20207d7
YO		 297
298
5ba4cab2
SH		 299/*
300 * Because of backward compatibility reasons the PERL_UNUSED_DECL
301 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
302 *
303 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 304 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
SH		 305 * marking unused variables (they need e.g. a #pragma) and therefore
306 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
307 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
308 *
309 */
1266ad8c 310
9969cdde 311#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 312# ifdef __cplusplus
5ba4cab2 313# define PERL_UNUSED_DECL
5b2bd0a5 314# else
5ba4cab2 315# define PERL_UNUSED_DECL __attribute__((unused))
5b2bd0a5
AMS		 316# endif
317#endif
44dbb695 318
5b2bd0a5 319#ifndef PERL_UNUSED_DECL
f7a9299a 320# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
5ba4cab2 321# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 322# else
5ba4cab2 323# define PERL_UNUSED_DECL
b79c357a 324# endif
5b2bd0a5 325#endif
00f254e2 326
349b520e
DM		 327/* gcc -Wall:
328 * for silencing unused variables that are actually used most of the time,
a730e3f2
JH		 329 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
330 * or variables/arguments that are used only in certain configurations.
349b520e 331 */
53c1dcc0 332#ifndef PERL_UNUSED_ARG
c707756e 333# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c 334#endif
53c1dcc0 335#ifndef PERL_UNUSED_VAR
a730e3f2 336# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 337#endif
ad73156c 338
23491f1d 339#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
96a5add6
AL		 340# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
341#else
342# define PERL_UNUSED_CONTEXT
343#endif
344
24e7ff4e
JH		 345/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
346 * g++ allows them but seems to have problems with them
347 * (insane errors ensue).
348 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
349 */
350#if defined(PERL_GCC_PEDANTIC) || \
351 (defined(__GNUC__) && defined(__cplusplus) && \
352 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
353# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
354# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
355# endif
356#endif
357
ffea512f 358/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
b469f1e0
JH		 359 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
360 *
361 * The main reason for this is that the combination of gcc -Wunused-result
362 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
363 * be silenced with casting to void. This causes trouble when the system
364 * header files use the attribute.
365 *
366 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
367 * is there for a good reason: you might lose success/failure information,
368 * or leak resources, or changes in resources.
ffea512f
JH		 369 *
370 * But sometimes you just want to ignore the return value, e.g. on
b469f1e0
JH		 371 * codepaths soon ending up in abort, or in "best effort" attempts,
372 * or in situations where there is no good way to handle failures.
ffea512f 373 *
b469f1e0
JH		 374 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
375 * another possibility is that you can capture the return value
376 * and use PERL_UNUSED_VAR on that.
ffea512f 377 *
b469f1e0
JH		 378 * The __typeof__() is used instead of typeof() since typeof() is not
379 * available under strict C89, and because of compilers masquerading
380 * as gcc (clang and icc), we want exactly the gcc extension
381 * __typeof__ and nothing else.
ffea512f
JH		 382 */
383#ifndef PERL_UNUSED_RESULT
b469f1e0
JH		 384# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
385# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
ffea512f
JH		 386# else
387# define PERL_UNUSED_RESULT(v) ((void)(v))
388# endif
389#endif
390
b56aac20
DM		 391/* on gcc (and clang), specify that a warning should be temporarily
392 * ignored; e.g.
393 *
394 * GCC_DIAG_IGNORE(-Wmultichar);
395 * char b = 'ab';
396 * GCC_DIAG_RESTORE;
397 *
398 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
399 *
400 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
401 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f
JH		 402 *
403 * Note on usage: on non-gcc (or lookalike, like clang) compilers
95b872d5
LM		 404 * one cannot use these with a semicolon at file (global) level without
405 * warnings since they are defined as empty, which leads into the terminating
c1d6452f
JH		 406 * semicolon being left alone on a line:
407 * ;
408 * which makes compilers mildly cranky. Therefore at file level one
95b872d5 409 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE macros *without*
6ab56f1e 410 * the semicolons.
c1d6452f
JH		 411 *
412 * (A dead-on-arrival solution would be to try to define the macros as
413 * NOOP or dNOOP, those don't work both inside functions and outside.)
b56aac20
DM		 414 */
415
57d4b8c5 416#if defined(__clang__) || defined(__clang) || \
d28ce8b4 417 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
c1d6452f
JH		 418# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
419/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 420# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 421 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
b56aac20
DM		 422# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
423#else
8ce6f80a
JH		 424# define GCC_DIAG_IGNORE(w)
425# define GCC_DIAG_RESTORE
b56aac20 426#endif
337458b1
JH		 427/* for clang specific pragmas */
428#if defined(__clang__) || defined(__clang)
429# define CLANG_DIAG_PRAGMA(x) _Pragma (#x)
430# define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \
431 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x)
432# define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop")
433#else
434# define CLANG_DIAG_IGNORE(w)
435# define CLANG_DIAG_RESTORE
436#endif
b56aac20 437
6f207bd3 438#define NOOP /*EMPTY*/(void)0
bafdc25d
NC		 439/* cea2e8a9dd23747f accidentally lost the comment originally from the first
440 check in of thread.h, explaining why we need dNOOP at all: */
441/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
442/* Declaring a *function*, instead of a variable, ensures that we don't rely
443 on being able to suppress "unused" warnings. */
7db66e12
CB		 444#ifdef __cplusplus
445#define dNOOP (void)0
446#else
64a8239e 447#define dNOOP extern int Perl___notused(void)
7db66e12 448#endif
71be2cbc 449
0cb96387 450#ifndef pTHX
a78adc84 451/* Don't bother defining tTHX ; using it outside
e8dda941
JD		 452 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
453 */
0cb96387
GS		 454# define pTHX void
455# define pTHX_
0cb96387
GS		 456# define aTHX
457# define aTHX_
9399a70c 458# define aTHXa(a) NOOP
0cb96387
GS		 459# define dTHXa(a) dNOOP
460# define dTHX dNOOP
894356b3
GS		 461# define pTHX_1 1
462# define pTHX_2 2
463# define pTHX_3 3
464# define pTHX_4 4
3d42dc86
RGS		 465# define pTHX_5 5
466# define pTHX_6 6
a3b680e6
AL		 467# define pTHX_7 7
468# define pTHX_8 8
469# define pTHX_9 9
a6fc70e5 470# define pTHX_12 12
0cb96387
GS		 471#endif
472
27da23d5
JH		 473#ifndef dVAR
474# define dVAR dNOOP
475#endif
476
b4f7f263
GS		 477/* these are only defined for compatibility; should not be used internally */
478#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS		 479# define pTHXo pTHX
480# define pTHXo_ pTHX_
0cb96387
GS		 481# define aTHXo aTHX
482# define aTHXo_ aTHX_
c5be433b 483# define dTHXo dTHX
71d280e3 484# define dTHXoa(x) dTHXa(x)
0cb96387
GS		 485#endif
486
487#ifndef pTHXx
5aaab254 488# define pTHXx PerlInterpreter *my_perl
0cb96387 489# define pTHXx_ pTHXx,
0cb96387
GS		 490# define aTHXx my_perl
491# define aTHXx_ aTHXx,
c5be433b 492# define dTHXx dTHX
22c35a8c 493#endif
71be2cbc 494
1de7c2ac
GS		 495/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
496 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
497 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
498#ifdef PERL_IMPLICIT_SYS
27da23d5
JH		 499# ifdef PERL_GLOBAL_STRUCT_PRIVATE
500# define dTHXs dVAR; dTHX
501# else
502# define dTHXs dTHX
503# endif
1de7c2ac 504#else
27da23d5
JH		 505# ifdef PERL_GLOBAL_STRUCT_PRIVATE
506# define dTHXs dVAR
507# else
508# define dTHXs dNOOP
509# endif
1de7c2ac
GS		 510#endif
511
5b692037
JH		 512#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
513# ifndef PERL_USE_GCC_BRACE_GROUPS
514# define PERL_USE_GCC_BRACE_GROUPS
515# endif
516#endif
517
728e2803 518/*
519 * STMT_START { statements; } STMT_END;
520 * can be used as a single statement, as in
521 * if (x) STMT_START { ... } STMT_END; else ...
522 *
523 * Trying to select a version that gives no warnings...
524 */
525#if !(defined(STMT_START) && defined(STMT_END))
5b692037 526# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 527# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803 528# define STMT_END )
529# else
728e2803 530# define STMT_START do
531# define STMT_END while (0)
728e2803 532# endif
533#endif
534
d6f9c181
JH		 535#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
536# define BYTEORDER 0x1234
79072805
LW		 537#endif
538
539/* Overall memory policy? */
540#ifndef CONSERVATIVE
541# define LIBERAL 1
542#endif
543
8ada0baa
JH		 544#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
545#define ASCIIish
546#else
547#undef ASCIIish
548#endif
549
79072805
LW		 550/*
551 * The following contortions are brought to you on behalf of all the
552 * standards, semi-standards, de facto standards, not-so-de-facto standards
553 * of the world, as well as all the other botches anyone ever thought of.
554 * The basic theory is that if we work hard enough here, the rest of the
555 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
556 */
ac58e20f 557
ee0007ab 558/* define this once if either system, instead of cluttering up the src */
7c458fae 559#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW		 560#define DOSISH 1
561#endif
562
3d97541c 563/* These exist only for back-compat with XS modules. */
8162b70e 564#ifndef PERL_CORE
516e10a9 565#define VOL volatile
3d97541c 566#define CAN_PROTOTYPE
ae75e3d0 567#define _(args) args
36a113ce 568#define I_STDARG
8162b70e 569#endif
663a0e37 570
284167a5
S		 571/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
572 * you get a perl without taint support, but doubtlessly with a lesser
573 * degree of support. Do not do so unless you know exactly what it means
574 * technically, have a good reason to do so, and know exactly how the
575 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
576 * a potential security risk due to flat out ignoring the security-relevant
577 * taint flags. This being said, a perl without taint support compiled in
578 * has marginal run-time performance benefits.
579 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
580 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
581 * silently ignores -t/-T instead of throwing an exception.
053a3618
S		 582 *
583 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 584 * voids your nonexistent warranty!
284167a5 585 */
dc6d7f5c 586#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
S		 587# define NO_TAINT_SUPPORT 1
588#endif
589
590/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
591 * operations into no-ops for a very modest speed-up. Enable only if you
592 * know what you're doing: tests and CPAN modules' tests are bound to fail.
593 */
dc6d7f5c 594#ifdef NO_TAINT_SUPPORT
284167a5
S		 595# define TAINT NOOP
596# define TAINT_NOT NOOP
597# define TAINT_IF(c) NOOP
598# define TAINT_ENV() NOOP
599# define TAINT_PROPER(s) NOOP
600# define TAINT_set(s) NOOP
601# define TAINT_get 0
602# define TAINTING_get 0
603# define TAINTING_set(s) NOOP
604# define TAINT_WARN_get 0
605# define TAINT_WARN_set(s) NOOP
606#else
d48c660d 607# define TAINT (PL_tainted = PL_tainting)
284167a5 608# define TAINT_NOT (PL_tainted = FALSE)
d48c660d 609# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = PL_tainting; }
2439e033
S		 610# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
611# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
S		 612# define TAINT_set(s) (PL_tainted = (s))
613# define TAINT_get (PL_tainted)
614# define TAINTING_get (PL_tainting)
615# define TAINTING_set(s) (PL_tainting = (s))
616# define TAINT_WARN_get (PL_taint_warn)
617# define TAINT_WARN_set(s) (PL_taint_warn = (s))
618#endif
a687059c 619
20be6587
DM		 620/* flags used internally only within pp_subst and pp_substcont */
621#ifdef PERL_CORE
622# define SUBST_TAINT_STR 1 /* string tainted */
623# define SUBST_TAINT_PAT 2 /* pattern tainted */
624# define SUBST_TAINT_REPL 4 /* replacement tainted */
625# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
626# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
627#endif
628
d460ef45 629/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de 630 defines move there? If so, I could simplify this a lot. --AD 9/96.
631*/
632/* Process group stuff changed from traditional BSD to POSIX.
633 perlfunc.pod documents the traditional BSD-style syntax, so we'll
634 try to preserve that, if possible.
635*/
636#ifdef HAS_SETPGID
637# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
da5fdda8
AC		 638#elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
639# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
640#elif defined(HAS_SETPGRP2)
641# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
a6e633de 642#endif
643#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
644# define HAS_SETPGRP /* Well, effectively it does . . . */
645#endif
646
647/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
648 our life easier :-) so we'll try it.
649*/
650#ifdef HAS_GETPGID
651# define BSD_GETPGRP(pid) getpgid((pid))
da5fdda8
AC		 652#elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
653# define BSD_GETPGRP(pid) getpgrp((pid))
654#elif defined(HAS_GETPGRP2)
655# define BSD_GETPGRP(pid) getpgrp2((pid))
a6e633de 656#endif
657#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
658# define HAS_GETPGRP /* Well, effectively it does . . . */
659#endif
660
d460ef45 661/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de 662 have different behaviors, but perl.h used to define USE_BSDPGRP
663 (prior to 5.003_05) so some extension might depend on it.
664*/
665#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
666# ifndef USE_BSDPGRP
667# define USE_BSDPGRP
668# endif
663a0e37
LW		 669#endif
670
486ec47a 671/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH		 672 pthread.h must be included before all other header files.
673*/
3db8f154 674#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH		 675# include <pthread.h>
676#endif
677
58ab9e8b 678#include <sys/types.h>
663a0e37 679
c7925a5e
DD		 680/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
681 which is included from stdarg.h. Bad definition not present in SD 2008
682 SDK headers. wince.h is not yet included, so we cant fix this from there
683 since by then MB_CUR_MAX will be defined from stdlib.h.
684 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
685 since cewchar.h can't be included this early */
686#if defined(UNDER_CE) && (_MSC_VER < 1300)
687# define MB_CUR_MAX 1
688#endif
9d82a2b7
AC		 689
690# include <stdarg.h>
760ac839 691
27db2737
JH		 692#ifdef I_STDINT
693# include <stdint.h>
694#endif
695
fe14fcc3 696#include <ctype.h>
63b481b9
AC		 697#include <float.h>
698#include <limits.h>
a0d0e21e
LW		 699
700#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
701#undef METHOD
a0d0e21e
LW		 702#endif
703
12ae5dfc
JH		 704#ifdef PERL_MICRO
705# define NO_LOCALE
706#endif
707
4633a7c4 708#ifdef I_LOCALE
36477c24 709# include <locale.h>
4633a7c4
LW		 710#endif
711
6ebbc862
KW		 712#ifdef I_XLOCALE
713# include <xlocale.h>
714#endif
715
36477c24 716#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
717# define USE_LOCALE
ccd65d51
KW		 718# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
719 capability */
36477c24 720# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
721 && defined(HAS_STRXFRM)
722# define USE_LOCALE_COLLATE
723# endif
724# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
725# define USE_LOCALE_CTYPE
726# endif
727# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
728# define USE_LOCALE_NUMERIC
729# endif
fa9b773e
KW		 730# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
731# define USE_LOCALE_MESSAGES
732# endif
733# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
734# define USE_LOCALE_MONETARY
735# endif
56e45410
KW		 736# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
737# define USE_LOCALE_TIME
738# endif
36477c24 739#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 740
fe14fcc3 741#include <setjmp.h>
79072805 742
a0d0e21e 743#ifdef I_SYS_PARAM
79072805
LW		 744# ifdef PARAM_NEEDS_TYPES
745# include <sys/types.h>
746# endif
747# include <sys/param.h>
352d5a3a 748#endif
79072805 749
ce3470dc
AD		 750/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
751 value something like 199306. This may be useful if no more-specific
752 feature test is available.
753*/
754#if defined(BSD)
755# ifndef BSDish
756# define BSDish
757# endif
758#endif
759
dd512de3
AC		 760/* Use all the "standard" definitions */
761#include <stdlib.h>
03a14243 762
3f270f98
JH		 763/* If this causes problems, set i_unistd=undef in the hint file. */
764#ifdef I_UNISTD
763ee752
AB		 765# if defined(__amigaos4__)
766# ifdef I_NETINET_IN
767# include <netinet/in.h>
768# endif
769# endif
3f270f98 770# include <unistd.h>
6e3136a6
AB		 771# if defined(__amigaos4__)
772/* Under AmigaOS 4 newlib.library provides an environ. However using
773 * it doesn't give us enough control over inheritance of variables by
774 * subshells etc. so replace with custom version based on abc-shell
775 * code. */
776extern char **myenviron;
777# undef environ
778# define environ myenviron
779# endif
3f270f98
JH		 780#endif
781
de8ca8af
NT		 782/* for WCOREDUMP */
783#ifdef I_SYS_WAIT
784# include <sys/wait.h>
785#endif
786
9969cdde 787#ifdef __SYMBIAN32__
27da23d5
JH		 788# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
789#endif
790
21e89b5f 791#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 792EXTERN_C int syscall(int, ...);
2ef53570
JH		 793#endif
794
21e89b5f 795#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 796EXTERN_C int usleep(unsigned int);
2ef53570
JH		 797#endif
798
1109a392
MHM		 799#ifdef PERL_CORE
800
801/* macros for correct constant construction */
802# if INTSIZE >= 2
803# define U16_CONST(x) ((U16)x##U)
804# else
805# define U16_CONST(x) ((U16)x##UL)
806# endif
807
808# if INTSIZE >= 4
809# define U32_CONST(x) ((U32)x##U)
810# else
811# define U32_CONST(x) ((U32)x##UL)
812# endif
813
814# ifdef HAS_QUAD
815# if INTSIZE >= 8
816# define U64_CONST(x) ((U64)x##U)
817# elif LONGSIZE >= 8
818# define U64_CONST(x) ((U64)x##UL)
819# elif QUADKIND == QUAD_IS_LONG_LONG
820# define U64_CONST(x) ((U64)x##ULL)
52865553
SH		 821# elif QUADKIND == QUAD_IS___INT64
822# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM		 823# else /* best guess we can make */
824# define U64_CONST(x) ((U64)x##UL)
825# endif
826# endif
827
828/* byte-swapping functions for big-/little-endian conversion */
829# define _swab_16_(x) ((U16)( \
830 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
831 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
832
833# define _swab_32_(x) ((U32)( \
834 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
835 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
836 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
837 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
838
839# ifdef HAS_QUAD
840# define _swab_64_(x) ((U64)( \
841 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
842 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
843 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
844 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
845 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
846 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
847 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
848 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
849# endif
850
9c17f24a
NC		 851/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
852 at least on FreeBSD. YMMV, so experiment. */
853#ifndef PERL_ARENA_SIZE
854#define PERL_ARENA_SIZE 4080
855#endif
856
ccb2c8b8 857/* Maximum level of recursion */
2b9dff67
RGS		 858#ifndef PERL_SUB_DEPTH_WARN
859#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS		 860#endif
861
1109a392
MHM		 862#endif /* PERL_CORE */
863
bdf3085f
NC		 864/* We no longer default to creating a new SV for GvSV.
865 Do this before embed. */
866#ifndef PERL_CREATE_GVSV
7459f06b
NC		 867# ifndef PERL_DONT_CREATE_GVSV
868# define PERL_DONT_CREATE_GVSV
869# endif
bdf3085f
NC		 870#endif
871
ca0c25f6
NC		 872#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
873#define PERL_USES_PL_PIDSTATUS
874#endif
875
739a0b84 876#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS		 877#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
878#endif
879
c31fac66
GS		 880#define MEM_SIZE Size_t
881
1936d2a7
NC		 882/* Round all values passed to malloc up, by default to a multiple of
883 sizeof(size_t)
884*/
885#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
886#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
887#endif
888
f1200559
WH		 889/* sv_grow() will expand strings by at least a certain percentage of
890 the previously *used* length to avoid excessive calls to realloc().
891 The default is 25% of the current length.
892*/
893#ifndef PERL_STRLEN_EXPAND_SHIFT
894# define PERL_STRLEN_EXPAND_SHIFT 2
895#endif
896
346712be
AC		 897#include <stddef.h>
898#define STRUCT_OFFSET(s,m) offsetof(s,m)
d0b86e2f
BF		 899
900/* ptrdiff_t is C11, so undef it under pedantic builds */
901#ifdef PERL_GCC_PEDANTIC
902# undef HAS_PTRDIFF_T
51371543
GS		 903#endif
904
9969cdde 905#ifndef __SYMBIAN32__
d54fbe84 906# include <string.h>
51371543
GS		 907#endif
908
55497cff 909/* This comes after <stdlib.h> so we don't try to change the standard
910 * library prototypes; we'll use our own in proto.h instead. */
03a14243 911
4633a7c4 912#ifdef MYMALLOC
86058a2d 913# ifdef PERL_POLLUTE_MALLOC
ee13e175 914# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS		 915# define Perl_malloc malloc
916# define Perl_calloc calloc
917# define Perl_realloc realloc
918# define Perl_mfree free
ee13e175 919# endif
86058a2d
GS		 920# else
921# define EMBEDMYMALLOC /* for compatibility */
922# endif
827e134a 923
651b9576
GS		 924# define safemalloc Perl_malloc
925# define safecalloc Perl_calloc
926# define saferealloc Perl_realloc
927# define safefree Perl_mfree
22f7c9c9
JH		 928# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
929 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
930 code; \
931 } STMT_END
932# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
933 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
934# define panic_write2(s) write(2, s, strlen(s))
935# define CHECK_MALLOC_TAINT(newval) \
936 CHECK_MALLOC_TOO_LATE_FOR_( \
937 if (newval) { \
acfd4d8e 938 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 939 exit(1); })
22f7c9c9 940# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 941 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH		 942 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
943 }} STMT_END;
f2517201
GS		 944#else /* MYMALLOC */
945# define safemalloc safesysmalloc
946# define safecalloc safesyscalloc
947# define saferealloc safesysrealloc
948# define safefree safesysfree
22f7c9c9
JH		 949# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
950# define CHECK_MALLOC_TAINT(newval) ((void)0)
951# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 952#endif /* MYMALLOC */
4633a7c4 953
fe13d51d 954/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 955#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		 956#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
957#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
958#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
959
fc36a67e 960#ifndef memzero
04322328 961# define memzero(d,l) memset(d,0,l)
d9d8d8de 962#endif
378cc40b 963
ae986130 964#ifdef I_NETINET_IN
79072805 965# include <netinet/in.h>
ae986130
LW		 966#endif
967
28e8609d
JH		 968#ifdef I_ARPA_INET
969# include <arpa/inet.h>
970#endif
971
1aef975c 972#ifdef I_SYS_STAT
84902520 973# include <sys/stat.h>
1aef975c 974#endif
79072805 975
287a962e
JD		 976/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
977 This definition should ideally go into win32/win32.h, but S_IFIFO is
978 used later here in perl.h before win32/win32.h is being included. */
979#if !defined(S_IFIFO) && defined(_S_IFIFO)
980# define S_IFIFO _S_IFIFO
981#endif
982
cc3315ba 983/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW		 984 like UTekV) are broken, sometimes giving false positives. Undefine
985 them here and let the code below set them to proper values.
986
987 The ghs macro stands for GreenHills Software C-1.8.5 which
988 is the C compiler for sysV88 and the various derivatives.
989 This header file bug is corrected in gcc-2.5.8 and later versions.
990 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
991
cc3315ba 992#if defined(m88k) && defined(ghs)
79072805
LW		 993# undef S_ISDIR
994# undef S_ISCHR
995# undef S_ISBLK
996# undef S_ISREG
997# undef S_ISFIFO
998# undef S_ISLNK
ee0007ab 999#endif
135863df 1000
9245da2a 1001#include <time.h>
663a0e37 1002
fe14fcc3 1003#ifdef I_SYS_TIME
85e6fe83 1004# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1005# define KERNEL
1006# endif
1007# include <sys/time.h>
85e6fe83 1008# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1009# undef KERNEL
1010# endif
a687059c 1011#endif
135863df 1012
55497cff 1013#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1014# include <sys/times.h>
d9d8d8de 1015#endif
8d063cd8 1016
663a0e37 1017#include <errno.h>
1e743fda 1018
acfe0abc 1019#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS		 1020# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1021#endif
1022
da70cfc6 1023#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH		 1024# include <sys/socket.h>
1025# if defined(USE_SOCKS) && defined(I_SOCKS)
1026# if !defined(INCLUDE_PROTOTYPES)
1027# define INCLUDE_PROTOTYPES /* for <socks.h> */
1028# define PERL_SOCKS_NEED_PROTOTYPES
1029# endif
1030# include <socks.h>
1031# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1032# undef INCLUDE_PROTOTYPES
1033# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1034# endif
d460ef45 1035# endif
1e743fda 1036# ifdef I_NETDB
2986a63f
JH		 1037# ifdef NETWARE
1038# include<stdio.h>
1039# endif
1e743fda
JH		 1040# include <netdb.h>
1041# endif
1042# ifndef ENOTSOCK
1043# ifdef I_NET_ERRNO
1044# include <net/errno.h>
1045# endif
1046# endif
1047#endif
1048
fa0a29af 1049/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM		 1050 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1051 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1052#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM		 1053# if defined(__THROW) && defined(__GLIBC__)
1054int sockatmark(int) __THROW;
1055# else
2ef53570 1056int sockatmark(int);
29820b6d 1057# endif
2ef53570
JH		 1058#endif
1059
7e827271 1060#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		 1061EXTERN_C int fchdir(int);
1062EXTERN_C int flock(int, int);
1063EXTERN_C int fseeko(FILE *, off_t, int);
1064EXTERN_C off_t ftello(FILE *);
1065#endif
1066
7e827271 1067#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d
JH		 1068EXTERN_C char *crypt(const char *, const char *);
1069#endif
1070
a54aca4b 1071#if defined(__cplusplus) && defined(__CYGWIN__)
667e2948
SP		 1072EXTERN_C char *crypt(const char *, const char *);
1073#endif
1074
1e743fda
JH		 1075#ifdef SETERRNO
1076# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1077#endif
f86702cc 1078
1079#ifdef VMS
1080# define SETERRNO(errcode,vmserrcode) \
1081 STMT_START { \
1082 set_errno(errcode); \
1083 set_vaxc_errno(vmserrcode); \
1084 } STMT_END
4ee39169
CS		 1085# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1086# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1087# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1088# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1089
93189314
JH		 1090# define LIB_INVARG LIB$_INVARG
1091# define RMS_DIR RMS$_DIR
1092# define RMS_FAC RMS$_FAC
1093# define RMS_FEX RMS$_FEX
1094# define RMS_FNF RMS$_FNF
1095# define RMS_IFI RMS$_IFI
1096# define RMS_ISI RMS$_ISI
1097# define RMS_PRV RMS$_PRV
1098# define SS_ACCVIO SS$_ACCVIO
1099# define SS_DEVOFFLINE SS$_DEVOFFLINE
1100# define SS_IVCHAN SS$_IVCHAN
1101# define SS_NORMAL SS$_NORMAL
8a9f18be 1102# define SS_NOPRIV SS$_NOPRIV
4388f261 1103# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1104#else
93189314
JH		 1105# define LIB_INVARG 0
1106# define RMS_DIR 0
1107# define RMS_FAC 0
1108# define RMS_FEX 0
1109# define RMS_FNF 0
1110# define RMS_IFI 0
1111# define RMS_ISI 0
1112# define RMS_PRV 0
1113# define SS_ACCVIO 0
1114# define SS_DEVOFFLINE 0
1115# define SS_IVCHAN 0
1116# define SS_NORMAL 0
8a9f18be 1117# define SS_NOPRIV 0
4388f261 1118# define SS_BUFFEROVF 0
748a9306 1119#endif
ed6116ce 1120
6ca940a9
TC		 1121#ifdef WIN32
1122# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1123# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1124# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1125# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1126#endif
1127
1128#ifdef OS2
1129# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1130# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1131# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1132# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1133#endif
1134
1135#ifndef SETERRNO
1136# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1137#endif
1138
1139#ifndef dSAVEDERRNO
1140# define dSAVEDERRNO int saved_errno
1141# define dSAVE_ERRNO int saved_errno = errno
1142# define SAVE_ERRNO (saved_errno = errno)
1143# define RESTORE_ERRNO (errno = saved_errno)
1144#endif
1145
f5fa9033 1146#define ERRSV GvSVn(PL_errgv)
dfd167e9 1147
b4f8d149 1148/* contains inlined gv_add_by_type */
dfd167e9 1149#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD		 1150 SV ** const svp = &GvSV(PL_errgv); \
1151 if (!*svp) { \
a1b60c8d 1152 *svp = newSVpvs(""); \
b4f8d149
DD		 1153 } else if (SvREADONLY(*svp)) { \
1154 SvREFCNT_dec_NN(*svp); \
b4f8d149 1155 *svp = newSVpvs(""); \
dfd167e9 1156 } else { \
b4f8d149 1157 SV *const errsv = *svp; \
a1b60c8d 1158 SvPVCLEAR(errsv); \
b4f8d149 1159 SvPOK_only(errsv); \
dfd167e9
NC		 1160 if (SvMAGICAL(errsv)) { \
1161 mg_free(errsv); \
1162 } \
dfd167e9
NC		 1163 } \
1164 } STMT_END
1165
1166
414bf5ae
MHM		 1167#ifdef PERL_CORE
1168# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC		 1169# define DEFSV_set(sv) \
1170 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1171# define SAVE_DEFSV \
1172 ( \
1173 save_gp(PL_defgv, 0), \
1174 GvINTRO_off(PL_defgv), \
1175 SAVEGENERICSV(GvSV(PL_defgv)), \
1176 GvSV(PL_defgv) = NULL \
1177 )
414bf5ae
MHM		 1178#else
1179# define DEFSV GvSVn(PL_defgv)
55b5114f
FC		 1180# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1181# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1182#endif
38a03e6e 1183
55497cff 1184#ifndef errno
5ff3f7a4
GS		 1185 extern int errno; /* ANSI allows errno to be an lvalue expr.
1186 * For example in multithreaded environments
1187 * something like this might happen:
1188 * extern int *_errno(void);
1189 * #define errno (*_errno()) */
d9d8d8de 1190#endif
663a0e37 1191
7e996671
KW		 1192#define UNKNOWN_ERRNO_MSG "(unknown)"
1193
b21d8587
AC		 1194#if VMS
1195#define Strerror(e) strerror((e), vaxc$errno)
1196#else
1197#define Strerror(e) strerror(e)
35c8bce7 1198#endif
663a0e37 1199
2304df62 1200#ifdef I_SYS_IOCTL
79072805
LW		 1201# ifndef _IOCTL_
1202# include <sys/ioctl.h>
1203# endif
a687059c
LW		 1204#endif
1205
ee0007ab 1206#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 1207# ifdef HAS_SOCKETPAIR
1208# undef HAS_SOCKETPAIR
1209# endif
2304df62
AD		 1210# ifdef I_NDBM
1211# undef I_NDBM
79072805 1212# endif
a687059c
LW		 1213#endif
1214
02fc2eee
NC		 1215#ifndef HAS_SOCKETPAIR
1216# ifdef HAS_SOCKET
1217# define socketpair Perl_my_socketpair
1218# endif
1219#endif
1220
a687059c 1221#if INTSIZE == 2
79072805
LW		 1222# define htoni htons
1223# define ntohi ntohs
a687059c 1224#else
79072805
LW		 1225# define htoni htonl
1226# define ntohi ntohl
a687059c
LW		 1227#endif
1228
a0d0e21e 1229/* Configure already sets Direntry_t */
35c8bce7 1230#if defined(I_DIRENT)
da5fdda8
AC		 1231# include <dirent.h>
1232#elif defined(I_SYS_NDIR)
1233# include <sys/ndir.h>
1234#elif defined(I_SYS_DIR)
1235# include <sys/dir.h>
4633a7c4 1236#endif
a687059c 1237
c623bd54
LW		 1238/*
1239 * The following gobbledygook brought to you on behalf of __STDC__.
1240 * (I could just use #ifndef __STDC__, but this is more bulletproof
1241 * in the face of half-implementations.)
1242 */
1243
21e89b5f 1244#if defined(I_SYSMODE)
ca6e1c26
JH		 1245#include <sys/mode.h>
1246#endif
1247
c623bd54
LW		 1248#ifndef S_IFMT
1249# ifdef _S_IFMT
1250# define S_IFMT _S_IFMT
1251# else
1252# define S_IFMT 0170000
1253# endif
1254#endif
1255
1256#ifndef S_ISDIR
1257# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1258#endif
1259
1260#ifndef S_ISCHR
1261# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1262#endif
1263
1264#ifndef S_ISBLK
fe14fcc3
LW		 1265# ifdef S_IFBLK
1266# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1267# else
1268# define S_ISBLK(m) (0)
1269# endif
c623bd54
LW		 1270#endif
1271
1272#ifndef S_ISREG
1273# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1274#endif
1275
1276#ifndef S_ISFIFO
fe14fcc3
LW		 1277# ifdef S_IFIFO
1278# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1279# else
1280# define S_ISFIFO(m) (0)
1281# endif
c623bd54
LW		 1282#endif
1283
1284#ifndef S_ISLNK
da5fdda8
AC		 1285# ifdef _S_ISLNK
1286# define S_ISLNK(m) _S_ISLNK(m)
1287# elif defined(_S_IFLNK)
1288# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1289# elif defined(S_IFLNK)
1290# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1291# else
1292# define S_ISLNK(m) (0)
1293# endif
c623bd54
LW		 1294#endif
1295
1296#ifndef S_ISSOCK
da5fdda8
AC		 1297# ifdef _S_ISSOCK
1298# define S_ISSOCK(m) _S_ISSOCK(m)
1299# elif defined(_S_IFSOCK)
1300# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1301# elif defined(S_IFSOCK)
1302# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1303# else
1304# define S_ISSOCK(m) (0)
1305# endif
c623bd54
LW		 1306#endif
1307
1308#ifndef S_IRUSR
1309# ifdef S_IREAD
1310# define S_IRUSR S_IREAD
1311# define S_IWUSR S_IWRITE
1312# define S_IXUSR S_IEXEC
1313# else
1314# define S_IRUSR 0400
1315# define S_IWUSR 0200
1316# define S_IXUSR 0100
1317# endif
fac7cdfc
JS		 1318#endif
1319
1320#ifndef S_IRGRP
1321# ifdef S_IRUSR
1322# define S_IRGRP (S_IRUSR>>3)
1323# define S_IWGRP (S_IWUSR>>3)
1324# define S_IXGRP (S_IXUSR>>3)
1325# else
1326# define S_IRGRP 0040
1327# define S_IWGRP 0020
1328# define S_IXGRP 0010
1329# endif
1330#endif
1331
1332#ifndef S_IROTH
1333# ifdef S_IRUSR
1334# define S_IROTH (S_IRUSR>>6)
1335# define S_IWOTH (S_IWUSR>>6)
1336# define S_IXOTH (S_IXUSR>>6)
1337# else
1338# define S_IROTH 0040
1339# define S_IWOTH 0020
1340# define S_IXOTH 0010
1341# endif
c623bd54
LW		 1342#endif
1343
1344#ifndef S_ISUID
1345# define S_ISUID 04000
1346#endif
1347
1348#ifndef S_ISGID
1349# define S_ISGID 02000
1350#endif
1351
ca6e1c26
JH		 1352#ifndef S_IRWXU
1353# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1354#endif
ca6e1c26
JH		 1355
1356#ifndef S_IRWXG
1357# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1358#endif
ca6e1c26
JH		 1359
1360#ifndef S_IRWXO
1361# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1362#endif
ca6e1c26 1363
b6c36746 1364/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH		 1365 * which would get included through <sys/file.h >, but that is 3000
1366 * lines in the future. --jhi */
1367
b6c36746 1368#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH		 1369# define S_IREAD S_IRUSR
1370#endif
1371
b6c36746 1372#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH		 1373# define S_IWRITE S_IWUSR
1374#endif
1375
1376#ifndef S_IEXEC
1377# define S_IEXEC S_IXUSR
1378#endif
1379
a0d0e21e 1380#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 1381# define SLOPPYDIVIDE
1382#endif
1383
748a9306
LW		 1384#ifdef UV
1385#undef UV
1386#endif
1387
f1519f70
AC		 1388/* This used to be conditionally defined based on whether we had a sprintf()
1389 * that correctly returns the string length (as required by C89), but we no
1390 * longer need that. XS modules can (and do) use this name, so it must remain
1391 * a part of the API that's visible to modules. But we no longer document it
1392 * either (because using sprintf() rather than snprintf() is almost always
1393 * a bad idea). */
1394#define my_sprintf sprintf
ce582cee 1395
5b692037
JH		 1396/*
1397 * If we have v?snprintf() and the C99 variadic macros, we can just
1398 * use just the v?snprintf(). It is nice to try to trap the buffer
1399 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD		 1400 * gcc statement expressions, then use the function wrappers which try
1401 * to trap the overflow. If we can use the gcc statement expressions,
1402 * we can try that even with the version that uses the C99 variadic
1403 * macros.
5b692037
JH		 1404 */
1405
1208b3dd 1406/* Note that we do not check against snprintf()/vsnprintf() returning
13d66b05
AC		 1407 * negative values because that is non-standard behaviour and we now
1408 * assume a working C89 implementation. */
1208b3dd 1409
571ee10c 1410#define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len > (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END
e8549682 1411
a4eca1d4
JH		 1412#ifdef USE_QUADMATH
1413# define my_snprintf Perl_my_snprintf
1414# define PERL_MY_SNPRINTF_GUARDED
da5fdda8 1415#elif defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1416# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1417# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1418# define PERL_MY_SNPRINTF_GUARDED
5b692037 1419# else
e8549682 1420# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1421# endif
1422#else
1423# define my_snprintf Perl_my_snprintf
1208b3dd 1424# define PERL_MY_SNPRINTF_GUARDED
5b692037
JH		 1425#endif
1426
a4eca1d4
JH		 1427/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1428 * dies if called under USE_QUADMATH. */
13d66b05 1429#if defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1430# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1431# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1432# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1433# else
e8549682 1434# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1435# endif
1436#else
1437# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1438# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1439#endif
d9fad198 1440
e8549682
JH		 1441/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1442 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1443 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1444 * completely ignore it: otherwise you cannot know whether your output
1445 * was too long.)
1446 *
1447 * int len = my_sprintf(buf, max, ...);
1448 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1449 *
1450 * The trick is that in certain platforms [a] the my_sprintf() already
1451 * contains the sanity check, while in certain platforms [b] it needs
1452 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1453 * platforms the POST_GUARD actually does nothing since the check has
1454 * already been done. Watch out for the max being the same in both calls.
1455 *
1456 * If you actually use the snprintf/vsnprintf return value already,
1457 * you assumedly are checking its validity somehow. But you can
1458 * insert the POST_GUARD() also in that case. */
1459
1460#ifndef PERL_MY_SNPRINTF_GUARDED
1461# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1462#else
1463# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1464#endif
1465
1466#ifndef PERL_MY_VSNPRINTF_GUARDED
1467# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1468#else
1469# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1470#endif
1471
a6cc4119
SP		 1472#ifdef HAS_STRLCAT
1473# define my_strlcat strlcat
1474#else
1475# define my_strlcat Perl_my_strlcat
1476#endif
1477
1478#ifdef HAS_STRLCPY
1479# define my_strlcpy strlcpy
1480#else
1481# define my_strlcpy Perl_my_strlcpy
1482#endif
1483
aefb3fa0
DIM		 1484#ifdef HAS_STRNLEN
1485# define my_strnlen strnlen
1486#else
1487# define my_strnlen Perl_my_strnlen
1488#endif
1489
05f13f53 1490/*
27d4fb96 1491 The IV type is supposed to be long enough to hold any integral
1492 value or a pointer.
1493 --Andy Dougherty August 1996
1494*/
1495
a22e52b9
JH		 1496typedef IVTYPE IV;
1497typedef UVTYPE UV;
8175356b 1498
10cc9d2a 1499#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1500# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS		 1501# define IV_MAX INT64_MAX
1502# define IV_MIN INT64_MIN
1503# define UV_MAX UINT64_MAX
cae7ae48
JH		 1504# ifndef UINT64_MIN
1505# define UINT64_MIN 0
1506# endif
5ff3f7a4
GS		 1507# define UV_MIN UINT64_MIN
1508# else
1509# define IV_MAX PERL_QUAD_MAX
1510# define IV_MIN PERL_QUAD_MIN
1511# define UV_MAX PERL_UQUAD_MAX
1512# define UV_MIN PERL_UQUAD_MIN
1513# endif
cf2093f6
JH		 1514# define IV_IS_QUAD
1515# define UV_IS_QUAD
79072805 1516#else
8175356b 1517# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS		 1518# define IV_MAX INT32_MAX
1519# define IV_MIN INT32_MIN
716026f9
DL		 1520# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1521# define UV_MAX UINT32_MAX
1522# else
1523# define UV_MAX 4294967295U
1524# endif
cae7ae48
JH		 1525# ifndef UINT32_MIN
1526# define UINT32_MIN 0
1527# endif
5ff3f7a4
GS		 1528# define UV_MIN UINT32_MIN
1529# else
1530# define IV_MAX PERL_LONG_MAX
1531# define IV_MIN PERL_LONG_MIN
1532# define UV_MAX PERL_ULONG_MAX
1533# define UV_MIN PERL_ULONG_MIN
1534# endif
8175356b 1535# if IVSIZE == 8
cf2093f6
JH		 1536# define IV_IS_QUAD
1537# define UV_IS_QUAD
de1c2614
JH		 1538# ifndef HAS_QUAD
1539# define HAS_QUAD
1540# endif
cf2093f6
JH		 1541# else
1542# undef IV_IS_QUAD
1543# undef UV_IS_QUAD
9ea40801 1544#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC		 1545/* We think that removing this decade-old undef this will cause too much
1546 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH		 1547 However, we do need HAS_QUAD in the core for use by the drand48 code,
1548 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1549# undef HAS_QUAD
e25d460c 1550#endif
cf2093f6 1551# endif
79072805 1552#endif
d7d93a81 1553
6313e544
JH		 1554#define Size_t_MAX (~(Size_t)0)
1555#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1556
cae7ae48 1557#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1558#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1559
28e5dec8 1560#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1561#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH		 1562#endif
1563
d460ef45 1564/*
26bb67e2
JH		 1565 * The macros INT2PTR and NUM2PTR are (despite their names)
1566 * bi-directional: they will convert int/float to or from pointers.
1567 * However the conversion to int/float are named explicitly:
1568 * PTR2IV, PTR2UV, PTR2NV.
1569 *
1570 * For int conversions we do not need two casts if pointers are
1571 * the same size as IV and UV. Otherwise we need an explicit
1572 * cast (PTRV) to avoid compiler warnings.
1573 */
56431972
RB		 1574#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1575# define PTRV UV
1576# define INT2PTR(any,d) (any)(d)
da5fdda8
AC		 1577#elif PTRSIZE == LONGSIZE
1578# define PTRV unsigned long
1579# define PTR2ul(p) (unsigned long)(p)
56431972 1580#else
da5fdda8 1581# define PTRV unsigned
e91e3b10
RB		 1582#endif
1583
1584#ifndef INT2PTR
56431972 1585# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1586#endif
e91e3b10
RB		 1587
1588#ifndef PTR2ul
1589# define PTR2ul(p) INT2PTR(unsigned long,p)
1590#endif
1591
56431972
RB		 1592#define NUM2PTR(any,d) (any)(PTRV)(d)
1593#define PTR2IV(p) INT2PTR(IV,p)
1594#define PTR2UV(p) INT2PTR(UV,p)
1595#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1596#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1597
8141890a
JH		 1598/* According to strict ANSI C89 one cannot freely cast between
1599 * data pointers and function (code) pointers. There are at least
1600 * two ways around this. One (used below) is to do two casts,
1601 * first the other pointer to an (unsigned) integer, and then
1602 * the integer to the other pointer. The other way would be
1603 * to use unions to "overlay" the pointers. For an example of
1604 * the latter technique, see union dirpu in struct xpvio in sv.h.
1605 * The only feasible use is probably temporarily storing
1606 * function pointers in a data pointer (such as a void pointer). */
1607
e91e3b10
RB		 1608#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1609#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1610
65202027 1611#ifdef USE_LONG_DOUBLE
f3654d06
JH		 1612# if LONG_DOUBLESIZE == DOUBLESIZE
1613# define LONG_DOUBLE_EQUALS_DOUBLE
1614# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS		 1615# endif
1616#endif
1617
2d4389e4
JH		 1618/* The following is all to get LDBL_DIG, in order to pick a nice
1619 default value for printing floating point numbers in Gconvert.
1620 (see config.h)
1621*/
63b481b9 1622#ifndef HAS_LDBL_DIG
68d4903c 1623# if LONG_DOUBLESIZE == 10
63b481b9
AC		 1624# define LDBL_DIG 18 /* assume IEEE */
1625# elif LONG_DOUBLESIZE == 12
68d4903c 1626# define LDBL_DIG 18 /* gcc? */
63b481b9
AC		 1627# elif LONG_DOUBLESIZE == 16
1628# define LDBL_DIG 33 /* assume IEEE */
1629# elif LONG_DOUBLESIZE == DOUBLESIZE
1630# define LDBL_DIG DBL_DIG /* bummer */
68d4903c 1631# endif
2d4389e4
JH		 1632#endif
1633
a22e52b9 1634typedef NVTYPE NV;
8175356b 1635
792d8dab
JH		 1636#ifdef I_IEEEFP
1637# include <ieeefp.h>
1638#endif
923fc586 1639
c32c3de1
JH		 1640#ifdef USING_MSVC6
1641/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1642 * and for example NaN < IV_MIN. */
bcd8bfa9
JH		 1643# define NAN_COMPARE_BROKEN
1644#endif
1645#if defined(__DECC) && defined(__osf__)
1646/* Also Tru64 cc has broken NaN comparisons. */
1647# define NAN_COMPARE_BROKEN
c32c3de1 1648#endif
6504068e
JH		 1649#if defined(__sgi)
1650# define NAN_COMPARE_BROKEN
1651#endif
c32c3de1 1652
65202027 1653#ifdef USE_LONG_DOUBLE
923fc586
JH		 1654# ifdef I_SUNMATH
1655# include <sunmath.h>
1656# endif
84e6cb05 1657# if defined(LDBL_DIG)
05b4a618
JH		 1658# define NV_DIG LDBL_DIG
1659# ifdef LDBL_MANT_DIG
1660# define NV_MANT_DIG LDBL_MANT_DIG
1661# endif
1662# ifdef LDBL_MIN
1663# define NV_MIN LDBL_MIN
1664# endif
1665# ifdef LDBL_MAX
1666# define NV_MAX LDBL_MAX
1667# endif
1668# ifdef LDBL_MIN_EXP
1669# define NV_MIN_EXP LDBL_MIN_EXP
1670# endif
1671# ifdef LDBL_MAX_EXP
1672# define NV_MAX_EXP LDBL_MAX_EXP
1673# endif
1674# ifdef LDBL_MIN_10_EXP
1675# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1676# endif
1677# ifdef LDBL_MAX_10_EXP
1678# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1679# endif
1680# ifdef LDBL_EPSILON
1681# define NV_EPSILON LDBL_EPSILON
1682# endif
1683# ifdef LDBL_MAX
1684# define NV_MAX LDBL_MAX
20f6aaab 1685/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
da5fdda8
AC		 1686# elif defined(HUGE_VALL)
1687# define NV_MAX HUGE_VALL
f4a14a62
JH		 1688# endif
1689# endif
84e6cb05 1690# if defined(HAS_SQRTL)
8a00eddc
JH		 1691# define Perl_acos acosl
1692# define Perl_asin asinl
1693# define Perl_atan atanl
940e3d56
JH		 1694# define Perl_atan2 atan2l
1695# define Perl_ceil ceill
1696# define Perl_cos cosl
8a00eddc 1697# define Perl_cosh coshl
940e3d56 1698# define Perl_exp expl
55da5e5b 1699/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 1700# define Perl_floor floorl
1701# define Perl_fmod fmodl
1702# define Perl_log logl
8a00eddc 1703# define Perl_log10 log10l
940e3d56
JH		 1704# define Perl_pow powl
1705# define Perl_sin sinl
8a00eddc 1706# define Perl_sinh sinhl
940e3d56 1707# define Perl_sqrt sqrtl
8a00eddc
JH		 1708# define Perl_tan tanl
1709# define Perl_tanh tanhl
68d4903c 1710# endif
a3540c92 1711/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH		 1712# ifndef Perl_modf
1713# ifdef HAS_MODFL
1714# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC		 1715/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1716 prototype in <math.h> */
05b4a618 1717# ifndef HAS_MODFL_PROTO
a221a8a5 1718EXTERN_C long double modfl(long double, long double *);
05b4a618
JH		 1719# endif
1720# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1721 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1722# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1723# endif
a3540c92 1724# endif
05b4a618
JH		 1725# ifndef Perl_frexp
1726# ifdef HAS_FREXPL
1727# define Perl_frexp(x,y) frexpl(x,y)
da5fdda8 1728# elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
05b4a618 1729extern long double Perl_my_frexpl(long double x, int *e);
da5fdda8 1730# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
03476e8e 1731# endif
a3540c92 1732# endif
05b4a618
JH		 1733# ifndef Perl_ldexp
1734# ifdef HAS_LDEXPL
1735# define Perl_ldexp(x, y) ldexpl(x,y)
da5fdda8
AC		 1736# elif defined(HAS_SCALBNL) && FLT_RADIX == 2
1737# define Perl_ldexp(x,y) scalbnl(x,y)
98181445
JH		 1738# endif
1739# endif
38dbb4c5 1740# ifndef Perl_isnan
e4c957f4 1741# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79 1742# define Perl_isnan(x) isnanl(x)
a1115378
JH		 1743# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1744# define Perl_isnan(x) isnan(x)
758a5d79
JH		 1745# endif
1746# endif
1747# ifndef Perl_isinf
e4c957f4 1748# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1749# define Perl_isinf(x) isinfl(x)
a1115378
JH		 1750# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1751# define Perl_isinf(x) isinf(x)
bcd8bfa9 1752# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1753# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH		 1754# endif
1755# endif
e38461cc
JH		 1756# ifndef Perl_isfinite
1757# define Perl_isfinite(x) Perl_isfinitel(x)
1758# endif
84e6cb05
JH		 1759#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1760# include <quadmath.h>
1761# define NV_DIG FLT128_DIG
1762# define NV_MANT_DIG FLT128_MANT_DIG
1763# define NV_MIN FLT128_MIN
1764# define NV_MAX FLT128_MAX
1765# define NV_MIN_EXP FLT128_MIN_EXP
1766# define NV_MAX_EXP FLT128_MAX_EXP
1767# define NV_EPSILON FLT128_EPSILON
1768# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1769# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH		 1770# define Perl_acos acosq
1771# define Perl_asin asinq
1772# define Perl_atan atanq
1773# define Perl_atan2 atan2q
1774# define Perl_ceil ceilq
1775# define Perl_cos cosq
1776# define Perl_cosh coshq
1777# define Perl_exp expq
1778/* no Perl_fabs, but there's PERL_ABS */
1779# define Perl_floor floorq
1780# define Perl_fmod fmodq
1781# define Perl_log logq
1782# define Perl_log10 log10q
1783# define Perl_pow powq
1784# define Perl_sin sinq
1785# define Perl_sinh sinhq
1786# define Perl_sqrt sqrtq
1787# define Perl_tan tanq
1788# define Perl_tanh tanhq
1789# define Perl_modf(x,y) modfq(x,y)
1790# define Perl_frexp(x,y) frexpq(x,y)
1791# define Perl_ldexp(x, y) ldexpq(x,y)
1792# define Perl_isinf(x) isinfq(x)
1793# define Perl_isnan(x) isnanq(x)
1794# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
b28053d1
JH		 1795# define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1)
1796# define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3)
1797# define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4)
1798# define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1)
1799# define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2)
1800# define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0)
65202027 1801#else
2d4389e4 1802# define NV_DIG DBL_DIG
63b481b9
AC		 1803# define NV_MANT_DIG DBL_MANT_DIG
1804# define NV_MIN DBL_MIN
1805# define NV_MAX DBL_MAX
1806# define NV_MIN_EXP DBL_MIN_EXP
1807# define NV_MAX_EXP DBL_MAX_EXP
1808# define NV_MIN_10_EXP DBL_MIN_10_EXP
1809# define NV_MAX_10_EXP DBL_MAX_10_EXP
1810# define NV_EPSILON DBL_EPSILON
1811# define NV_MAX DBL_MAX
1812# define NV_MIN DBL_MIN
940e3d56 1813
55da5e5b 1814/* These math interfaces are C89. */
8a00eddc
JH		 1815# define Perl_acos acos
1816# define Perl_asin asin
1817# define Perl_atan atan
940e3d56
JH		 1818# define Perl_atan2 atan2
1819# define Perl_ceil ceil
1820# define Perl_cos cos
8a00eddc 1821# define Perl_cosh cosh
940e3d56 1822# define Perl_exp exp
55da5e5b 1823/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 1824# define Perl_floor floor
1825# define Perl_fmod fmod
1826# define Perl_log log
8a00eddc 1827# define Perl_log10 log10
940e3d56
JH		 1828# define Perl_pow pow
1829# define Perl_sin sin
8a00eddc 1830# define Perl_sinh sinh
940e3d56 1831# define Perl_sqrt sqrt
8a00eddc
JH		 1832# define Perl_tan tan
1833# define Perl_tanh tanh
940e3d56
JH		 1834
1835# define Perl_modf(x,y) modf(x,y)
1836# define Perl_frexp(x,y) frexp(x,y)
1837# define Perl_ldexp(x,y) ldexp(x,y)
1838
1a322af2
JH		 1839# ifndef Perl_isnan
1840# ifdef HAS_ISNAN
1841# define Perl_isnan(x) isnan(x)
1842# endif
1843# endif
1844# ifndef Perl_isinf
1845# if defined(HAS_ISINF)
1846# define Perl_isinf(x) isinf(x)
bcd8bfa9 1847# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1848# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH		 1849# endif
1850# endif
1851# ifndef Perl_isfinite
1852# ifdef HAS_ISFINITE
1853# define Perl_isfinite(x) isfinite(x)
1854# elif defined(HAS_FINITE)
1855# define Perl_isfinite(x) finite(x)
1856# endif
1857# endif
758a5d79
JH		 1858#endif
1859
30404d48
JH		 1860/* fpclassify(): C99. It is supposed to be a macro that switches on
1861* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
1862#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
1863# include <math.h>
25c46df8
JH		 1864# if defined(FP_INFINITE) && defined(FP_NAN)
1865# define Perl_fp_class(x) fpclassify(x)
1866# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1867# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1868# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1869# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1870# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1871# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
1872/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
1873 * actually not the C99 fpclassify, with its own set of return defines. */
1874# define Perl_fp_class(x) fpclassify(x)
1875# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
1876# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 1877# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH		 1878# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1879# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 1880# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH		 1881# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
1882# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
1883# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
1884# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
1885# else
1886# undef Perl_fp_class /* Unknown set of defines */
1887# endif
30404d48
JH		 1888#endif
1889
25c46df8
JH		 1890/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
1891 * are identical to the C99 fpclassify(). */
1892#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
1893# include <math.h>
558f3e66
CB		 1894# ifdef __VMS
1895 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
1896# include <fp.h>
56610b8f
CB		 1897 /* oh, and the isnormal macro has a typo in it! */
1898# undef isnormal
1899# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 1900# endif
25c46df8
JH		 1901# if defined(FP_INFINITE) && defined(FP_NAN)
1902# define Perl_fp_class(x) fp_classify(x)
1903# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
1904# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
1905# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
1906# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
1907# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
1908# else
1909# undef Perl_fp_class /* Unknown set of defines */
1910# endif
f279e099 1911#endif
205f51d8 1912
30404d48
JH		 1913/* Feel free to check with me for the SGI manpages, SGI testing,
1914 * etcetera, if you want to try getting this to work with IRIX.
1915 *
1916 * - Allen <allens@cpan.org> */
1917
1918/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 1919#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH		 1920/* Solaris and IRIX have fpclass/fpclassl, but they are using
1921 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
1922 * Define some symbols also as cpp symbols so we can detect them. */
033a6f7a 1923# if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
25c46df8
JH		 1924# define FP_PINF FP_PINF
1925# define FP_QNAN FP_QNAN
1926# endif
f279e099 1927# include <math.h>
758a5d79
JH		 1928# ifdef I_IEEFP
1929# include <ieeefp.h>
1930# endif
1931# ifdef I_FP
1932# include <fp.h>
1933# endif
1934# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 1935# define Perl_fp_class(x) fpclassl(x)
758a5d79 1936# else
f279e099
JH		 1937# define Perl_fp_class(x) fpclass(x)
1938# endif
25c46df8 1939# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH		 1940# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
1941# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
1942# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
1943# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
1944# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
1945# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
1946# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
1947# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
1948# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
1949# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 1950# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH		 1951# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1952# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1953# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
1954# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
1955# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
1956# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
1957# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
1958# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
1959# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
1960# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH		 1961# else
1962# undef Perl_fp_class /* Unknown set of defines */
758a5d79 1963# endif
758a5d79
JH		 1964#endif
1965
30404d48
JH		 1966/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
1967#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH		 1968# include <math.h>
1969# if !defined(FP_SNAN) && defined(I_FP_CLASS)
1970# include <fp_class.h>
1971# endif
25c46df8 1972# if defined(FP_POS_INF) && defined(FP_QNAN)
033a6f7a 1973# ifdef __sgi /* XXX Configure test instead */
25c46df8
JH		 1974# ifdef USE_LONG_DOUBLE
1975# define Perl_fp_class(x) fp_class_l(x)
1976# else
1977# define Perl_fp_class(x) fp_class_d(x)
1978# endif
f279e099 1979# else
25c46df8
JH		 1980# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
1981# define Perl_fp_class(x) fp_classl(x)
1982# else
1983# define Perl_fp_class(x) fp_class(x)
1984# endif
f279e099 1985# endif
25c46df8
JH		 1986# if defined(FP_POS_INF) && defined(FP_QNAN)
1987# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
1988# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
1989# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
1990# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
1991# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
1992# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
1993# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
1994# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
1995# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
1996# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 1997# else
25c46df8 1998# undef Perl_fp_class /* Unknown set of defines */
30404d48 1999# endif
f279e099 2000# endif
30404d48
JH		 2001#endif
2002
052758ae 2003/* class(), _class(): Legacy: AIX. */
758a5d79
JH		 2004#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2005# include <math.h>
25c46df8
JH		 2006# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2007# ifndef _cplusplus
2008# define Perl_fp_class(x) class(x)
2009# else
2010# define Perl_fp_class(x) _class(x)
2011# endif
2012# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2013# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2014# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2015# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2016# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2017# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2018# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2019# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2020# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2021# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2022# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2023# else
2024# undef Perl_fp_class /* Unknown set of defines */
2025# endif
758a5d79 2026# endif
30404d48
JH		 2027#endif
2028
2029/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH		 2030#ifdef WIN32
2031# ifndef Perl_isnan
2032# define Perl_isnan(x) _isnan(x)
2033# endif
2034# ifndef Perl_isfinite
2035# define Perl_isfinite(x) _finite(x)
2036# endif
2037# ifndef Perl_fp_class_snan
25c46df8
JH		 2038/* No simple way to #define Perl_fp_class because _fpclass()
2039 * returns a set of bits. */
796ea9ea
JH		 2040# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2041# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2042# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH		 2043# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2044# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2045# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2046# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2047# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2048# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2049# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2050# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2051# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2052# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2053# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2054# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2055# endif
f279e099
JH		 2056#endif
2057
2058#if !defined(Perl_fp_class_inf) && \
2059 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2060# define Perl_fp_class_inf(x) \
2061 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2062#endif
2063
2064#if !defined(Perl_fp_class_nan) && \
2065 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2066# define Perl_fp_class_nan(x) \
2067 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2068#endif
2069
2070#if !defined(Perl_fp_class_zero) && \
2071 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2072# define Perl_fp_class_zero(x) \
2073 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2074#endif
2075
2076#if !defined(Perl_fp_class_norm) && \
2077 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2078# define Perl_fp_class_norm(x) \
2079 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2080#endif
2081
2082#if !defined(Perl_fp_class_denorm) && \
2083 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2084# define Perl_fp_class_denorm(x) \
2085 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2086#endif
758a5d79 2087
1a322af2
JH		 2088#ifdef UNDER_CE
2089int isnan(double d);
2090#endif
2091
758a5d79 2092#ifndef Perl_isnan
1a322af2
JH		 2093# ifdef Perl_fp_class_nan
2094# define Perl_isnan(x) Perl_fp_class_nan(x)
da5fdda8
AC		 2095# elif defined(HAS_UNORDERED)
2096# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2097# else
da5fdda8 2098# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH		 2099# endif
2100#endif
2101
1a322af2
JH		 2102#ifndef Perl_isinf
2103# ifdef Perl_fp_class_inf
2104# define Perl_isinf(x) Perl_fp_class_inf(x)
2105# endif
ca6c63e1
JH		 2106#endif
2107
758a5d79 2108#ifndef Perl_isfinite
25c46df8 2109# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2110# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2111# elif defined(HAS_FINITE)
c496ca58 2112# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH		 2113# elif defined(Perl_fp_class_finite)
2114# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2115# else
c496ca58
JH		 2116/* For the infinities the multiplication returns nan,
2117 * for the nan the multiplication also returns nan,
2118 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2119# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2120# endif
65202027
DS		 2121#endif
2122
25c46df8
JH		 2123#ifndef Perl_isinf
2124# if defined(Perl_isfinite) && defined(Perl_isnan)
2125# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2126# endif
2127#endif
2128
d3685250
JH		 2129/* We need Perl_isfinitel (ends with ell) (if available) even when
2130 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2131 * needs that. */
2132#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2133/* If isfinite() is a macro and looks like we have C99,
2134 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2135# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH		 2136# define Perl_isfinitel(x) isfinite(x)
2137# elif defined(HAS_ISFINITEL)
2138# define Perl_isfinitel(x) isfinitel(x)
2139# elif defined(HAS_FINITEL)
2140# define Perl_isfinitel(x) finitel(x)
2141# elif defined(HAS_INFL) && defined(HAS_NANL)
2142# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2143# else
99bf9e32 2144# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH		 2145# endif
2146#endif
2147
a36244b7
JH		 2148/* The default is to use Perl's own atof() implementation (in numeric.c).
2149 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2150 * it is however best to use the native implementation of atof.
2151 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2152 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS		 2153 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2154 * you may need to be using a different function than atof! */
a36244b7
JH		 2155
2156#ifndef USE_PERL_ATOF
2157# ifndef _UNICOS
2158# define USE_PERL_ATOF
2159# endif
2160#else
2161# if USE_PERL_ATOF == 0
2162# undef USE_PERL_ATOF
2163# endif
2164#endif
2165
2166#ifdef USE_PERL_ATOF
2167# define Perl_atof(s) Perl_my_atof(s)
2168# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2169#else
2170# define Perl_atof(s) (NV)atof(s)
2171# define Perl_atof2(s, n) ((n) = atof(s))
2172#endif
cf2093f6 2173
99abf803 2174/*
2175 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2176 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2177 * depending on local options. Until Configure detects this (or at least
2178 * detects whether the "signed" keyword is available) the CHAR ranges
2179 * will not be included. UCHAR functions normally.
2180 * - kja
2181 */
27d4fb96 2182
6ec488b3
AC		 2183#define PERL_UCHAR_MIN ((unsigned char)0)
2184#define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2185
6ec488b3
AC		 2186#define PERL_USHORT_MIN ((unsigned short)0)
2187#define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
27d4fb96 2188
6ec488b3
AC		 2189#define PERL_SHORT_MAX ((short)SHRT_MAX)
2190#define PERL_SHORT_MIN ((short)SHRT_MIN)
27d4fb96 2191
6ec488b3 2192#define PERL_UINT_MAX ((unsigned int)UINT_MAX)
99abf803 2193#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2194
6ec488b3
AC		 2195#define PERL_INT_MAX ((int)INT_MAX)
2196#define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2197
6ec488b3 2198#define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
99abf803 2199#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2200
6ec488b3
AC		 2201#define PERL_LONG_MAX ((long)LONG_MAX)
2202#define PERL_LONG_MIN ((long)LONG_MIN)
760ac839 2203
d7d93a81 2204#ifdef UV_IS_QUAD
99abf803 2205# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2206# define PERL_UQUAD_MIN ((UV)0)
99abf803 2207# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2208# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
79072805
LW		 2209#endif
2210
ee0007ab 2211typedef MEM_SIZE STRLEN;
450a55e4 2212
79072805
LW		 2213typedef struct op OP;
2214typedef struct cop COP;
2215typedef struct unop UNOP;
2f7c6295 2216typedef struct unop_aux UNOP_AUX;
79072805
LW		 2217typedef struct binop BINOP;
2218typedef struct listop LISTOP;
2219typedef struct logop LOGOP;
79072805
LW		 2220typedef struct pmop PMOP;
2221typedef struct svop SVOP;
7934575e 2222typedef struct padop PADOP;
79072805 2223typedef struct pvop PVOP;
79072805 2224typedef struct loop LOOP;
b46e009d 2225typedef struct methop METHOP;
79072805 2226
7aef8e5b 2227#ifdef PERL_CORE
8be227ab
FC		 2228typedef struct opslab OPSLAB;
2229typedef struct opslot OPSLOT;
2230#endif
2231
52db365a 2232typedef struct block_hooks BHK;
1830b3d9 2233typedef struct custom_op XOP;
52db365a 2234
cd1541b2
NC		 2235typedef struct interpreter PerlInterpreter;
2236
d2b3f365 2237/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2238#if defined(__sgi)
d2b3f365 2239# define STRUCT_SV perl_sv
b8d3c5db
JH		 2240#else
2241# define STRUCT_SV sv
2242#endif
2243typedef struct STRUCT_SV SV;
79072805
LW		 2244typedef struct av AV;
2245typedef struct hv HV;
2246typedef struct cv CV;
d2f13c59 2247typedef struct p5rx REGEXP;
79072805 2248typedef struct gp GP;
0c30d9ec 2249typedef struct gv GV;
8990e307 2250typedef struct io IO;
c09156bb 2251typedef struct context PERL_CONTEXT;
79072805
LW		 2252typedef struct block BLOCK;
2253
2254typedef struct magic MAGIC;
2255typedef struct xpv XPV;
2256typedef struct xpviv XPVIV;
ff68c719 2257typedef struct xpvuv XPVUV;
79072805
LW		 2258typedef struct xpvnv XPVNV;
2259typedef struct xpvmg XPVMG;
2260typedef struct xpvlv XPVLV;
d361b004 2261typedef struct xpvinvlist XINVLIST;
79072805
LW		 2262typedef struct xpvav XPVAV;
2263typedef struct xpvhv XPVHV;
2264typedef struct xpvgv XPVGV;
2265typedef struct xpvcv XPVCV;
2266typedef struct xpvbm XPVBM;
2267typedef struct xpvfm XPVFM;
8990e307 2268typedef struct xpvio XPVIO;
79072805
LW		 2269typedef struct mgvtbl MGVTBL;
2270typedef union any ANY;
5f7fde29
GS		 2271typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2272typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS		 2273typedef struct clone_params CLONE_PARAMS;
2274
0f94cb1f 2275/* a pad is currently just an AV; but that might change,
7261499d
FC		 2276 * so hide the type. */
2277typedef struct padlist PADLIST;
67634234 2278typedef AV PAD;
9b7476d7 2279typedef struct padnamelist PADNAMELIST;
0f94cb1f 2280typedef struct padname PADNAME;
67634234 2281
5d32d268
DM		 2282/* enable PERL_OP_PARENT by default */
2283#if !defined(PERL_OP_PARENT) && !defined(PERL_NO_OP_PARENT)
2284# define PERL_OP_PARENT
2285#endif
2286
93c10d60
FC		 2287/* enable PERL_COPY_ON_WRITE by default */
2288#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2289# define PERL_COPY_ON_WRITE
13b0f67d 2290#endif
07d01d6e 2291
93c10d60 2292#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2293# define PERL_ANY_COW
9f351b45
DM		 2294#else
2295# define PERL_SAWAMPERSAND
db2c6cb3
FC		 2296#endif
2297
40653c20
FC		 2298#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2299# error PERL_DEBUG_READONLY_OPS only works with ithreads
2300#endif
2301
378cc40b 2302#include "handy.h"
64935bc6 2303#include "charclass_invlists.h"
a0d0e21e 2304
6b8eaf93 2305#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH		 2306# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2307# define USE_64_BIT_RAWIO /* implicit */
2308# endif
4564133c
JH		 2309#endif
2310
6b8eaf93
JH		 2311/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2312 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2313 * however, because operating systems like to do that themself. */
2314#ifndef FSEEKSIZE
2315# ifdef HAS_FSEEKO
2316# define FSEEKSIZE LSEEKSIZE
2317# else
2318# define FSEEKSIZE LONGSIZE
d460ef45 2319# endif
6b8eaf93
JH		 2320#endif
2321
2322#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH		 2323# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2324# define USE_64_BIT_STDIO /* implicit */
2325# endif
2326#endif
4564133c 2327
09458382 2328#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH		 2329# ifdef HAS_OFF64_T
2330# undef Off_t
2331# define Off_t off64_t
2332# undef LSEEKSIZE
2333# define LSEEKSIZE 8
5ff3f7a4 2334# endif
d9b3e12d
JH		 2335/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2336 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2337 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH		 2338# if defined(USE_OPEN64)
2339# define open open64
5ff3f7a4 2340# endif
d9b3e12d
JH		 2341# if defined(USE_LSEEK64)
2342# define lseek lseek64
6b8eaf93
JH		 2343# else
2344# if defined(USE_LLSEEK)
2345# define lseek llseek
2346# endif
d9b3e12d
JH		 2347# endif
2348# if defined(USE_STAT64)
2349# define stat stat64
2350# endif
2351# if defined(USE_FSTAT64)
2352# define fstat fstat64
2353# endif
2354# if defined(USE_LSTAT64)
2355# define lstat lstat64
2356# endif
2357# if defined(USE_FLOCK64)
2358# define flock flock64
2359# endif
2360# if defined(USE_LOCKF64)
2361# define lockf lockf64
2362# endif
2363# if defined(USE_FCNTL64)
2364# define fcntl fcntl64
2365# endif
2366# if defined(USE_TRUNCATE64)
2367# define truncate truncate64
2368# endif
2369# if defined(USE_FTRUNCATE64)
2370# define ftruncate ftruncate64
2371# endif
2372#endif
2373
2374#ifdef USE_64_BIT_STDIO
2375# ifdef HAS_FPOS64_T
2376# undef Fpos_t
2377# define Fpos_t fpos64_t
2378# endif
2379/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2380 * will trigger defines like the ones below. Some 64-bit environments,
2381 * however, do not. */
2382# if defined(USE_FOPEN64)
2383# define fopen fopen64
2384# endif
2385# if defined(USE_FSEEK64)
6b8eaf93 2386# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH		 2387# endif
2388# if defined(USE_FTELL64)
6b8eaf93 2389# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH		 2390# endif
2391# if defined(USE_FSETPOS64)
2392# define fsetpos fsetpos64
2393# endif
2394# if defined(USE_FGETPOS64)
2395# define fgetpos fgetpos64
2396# endif
2397# if defined(USE_TMPFILE64)
2398# define tmpfile tmpfile64
2399# endif
2400# if defined(USE_FREOPEN64)
2401# define freopen freopen64
5ff3f7a4
GS		 2402# endif
2403#endif
2404
e37778c2 2405#if defined(OS2)
2c2d71f5
JH		 2406# include "iperlsys.h"
2407#endif
2408
748a9306 2409#ifdef DOSISH
19848b3f
JH		 2410# if defined(OS2)
2411# include "os2ish.h"
2412# else
2413# include "dosish.h"
2414# endif
009819bb 2415#elif defined(VMS)
748a9306 2416# include "vmsish.h"
009819bb 2417#elif defined(PLAN9)
19848b3f 2418# include "./plan9/plan9ish.h"
009819bb 2419#elif defined(__VOS__)
196918b0
PG		 2420# ifdef __GNUC__
2421# include "./vos/vosish.h"
2422# else
2423# include "vos/vosish.h"
2424# endif
009819bb 2425#elif defined(__SYMBIAN32__)
27da23d5 2426# include "symbian/symbianish.h"
009819bb 2427#elif defined(__HAIKU__)
df00ff3b 2428# include "haiku/haikuish.h"
009819bb 2429#else
19848b3f 2430# include "unixish.h"
13b6e58c
JH		 2431#endif
2432
ea34f6bd 2433#ifdef __amigaos4__
3c0208ad
AB		 2434# include "amigaos.h"
2435# undef FD_CLOEXEC /* a lie in AmigaOS */
2436#endif
2437
2946a158 2438/* NSIG logic from Configure --> */
2946a158
JH		 2439#ifndef NSIG
2440# ifdef _NSIG
2441# define NSIG (_NSIG)
da5fdda8 2442# elif defined(SIGMAX)
2946a158 2443# define NSIG (SIGMAX+1)
da5fdda8 2444# elif defined(SIG_MAX)
2946a158 2445# define NSIG (SIG_MAX+1)
da5fdda8 2446# elif defined(_SIG_MAX)
2946a158 2447# define NSIG (_SIG_MAX+1)
da5fdda8 2448# elif defined(MAXSIG)
2946a158 2449# define NSIG (MAXSIG+1)
da5fdda8 2450# elif defined(MAX_SIG)
2946a158 2451# define NSIG (MAX_SIG+1)
da5fdda8 2452# elif defined(SIGARRAYSIZE)
2946a158 2453# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
da5fdda8 2454# elif defined(_sys_nsig)
2946a158 2455# define NSIG (_sys_nsig) /* Solaris 2.5 */
da5fdda8
AC		 2456# else
2457 /* Default to some arbitrary number that's big enough to get most
2458 * of the common signals. */
2946a158 2459# define NSIG 50
da5fdda8 2460# endif
2946a158
JH		 2461#endif
2462/* <-- NSIG logic from Configure */
2463
13b6e58c
JH		 2464#ifndef NO_ENVIRON_ARRAY
2465# define USE_ENVIRON_ARRAY
2466#endif
32f822de 2467
c77b533b
JH		 2468/*
2469 * initialise to avoid floating-point exceptions from overflow, etc
2470 */
2471#ifndef PERL_FPU_INIT
2472# ifdef HAS_FPSETMASK
2473# if HAS_FLOATINGPOINT_H
2474# include <floatingpoint.h>
2475# endif
ad3a8c67
NC		 2476/* Some operating systems have this as a macro, which in turn expands to a comma
2477 expression, and the last sub-expression is something that gets calculated,
2478 and then they have the gall to warn that a value computed is not used. Hence
2479 cast to void. */
2480# define PERL_FPU_INIT (void)fpsetmask(0)
da5fdda8
AC		 2481# elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2482# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2483# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2484# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
c77b533b 2485# else
da5fdda8 2486# define PERL_FPU_INIT
c77b533b
JH		 2487# endif
2488#endif
b35112e7
CS		 2489#ifndef PERL_FPU_PRE_EXEC
2490# define PERL_FPU_PRE_EXEC {
2491# define PERL_FPU_POST_EXEC }
2492#endif
c77b533b 2493
a308b05a
JH		 2494/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2495 * We need to reenable the "invalid" trap because otherwise generation
2496 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2497 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2498#ifdef __osf__
2499# include <machine/fpu.h>
2500# define PERL_SYS_FPU_INIT \
2501 STMT_START { \
2502 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2503 signal(SIGFPE, SIG_IGN); \
2504 } STMT_END
2505#endif
94a08944
JH		 2506/* In IRIX the default for Flush to Zero bit is true,
2507 * which means that results going below the minimum of normal
2508 * floating points go to zero, instead of going denormal/subnormal.
2509 * This is unlike almost any other system running Perl, so let's clear it.
2510 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2511 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2512 *
2513 * XXX The flush-to-zero behaviour should be a Configure scan.
2514 * To change the behaviour usually requires some system-specific
2515 * incantation, though, like the below. */
2516#ifdef __sgi
2517# include <sys/fpu.h>
2518# define PERL_SYS_FPU_INIT \
2519 STMT_START { \
2520 union fpc_csr csr; \
2521 csr.fc_word = get_fpc_csr(); \
2522 csr.fc_struct.flush = 0; \
2523 set_fpc_csr(csr.fc_word); \
2524 } STMT_END
2525#endif
a308b05a
JH		 2526
2527#ifndef PERL_SYS_FPU_INIT
2528# define PERL_SYS_FPU_INIT NOOP
2529#endif
2530
cbec8ebe
DM		 2531#ifndef PERL_SYS_INIT3_BODY
2532# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ		 2533#endif
2534
eb533572 2535/*
dcccc8ff
KW		 2536=head1 Miscellaneous Functions
2537
4ad9e498 2538=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2539Provides system-specific tune up of the C runtime environment necessary to
72d33970 2540run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2541any Perl interpreters.
2542
4ad9e498 2543=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2544Provides system-specific tune up of the C runtime environment necessary to
72d33970 2545run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2546any Perl interpreters.
2547
2548=for apidoc Am|void|PERL_SYS_TERM|
2549Provides system-specific clean up of the C runtime environment after
72d33970 2550running Perl interpreters. This should be called only once, after
eb533572
DM		 2551freeing any remaining Perl interpreters.
2552
2553=cut
2554 */
2555
cbec8ebe
DM		 2556#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2557#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2558#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2559
be708cc0
JH		 2560#ifndef PERL_WRITE_MSG_TO_CONSOLE
2561# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2562#endif
2563
0f31cffe
GS		 2564#ifndef MAXPATHLEN
2565# ifdef PATH_MAX
b990c8b2
JH		 2566# ifdef _POSIX_PATH_MAX
2567# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH		 2568/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2569 * included the null byte or not. Later amendments of POSIX,
2570 * XPG4, the Austin Group, and the Single UNIX Specification
2571 * all explicitly include the null byte in the PATH_MAX.
2572 * Ditto for _POSIX_PATH_MAX. */
2573# define MAXPATHLEN PATH_MAX
b990c8b2 2574# else
09448d78 2575# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2576# endif
2577# else
2578# define MAXPATHLEN (PATH_MAX+1)
2579# endif
0f31cffe 2580# else
d552bce8 2581# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS		 2582# endif
2583#endif
2584
c80263a8
SH		 2585/* In case Configure was not used (we are using a "canned config"
2586 * such as Win32, or a cross-compilation setup, for example) try going
2587 * by the gcc major and minor versions. One useful URL is
2588 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2589 * but contrary to this information warn_unused_result seems
2590 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD		 2591 * Also, when building extensions with an installed perl, this allows
2592 * the user to upgrade gcc and get the right attributes, rather than
2593 * relying on the list generated at Configure time. --AD
c80263a8
SH		 2594 * Set these up now otherwise we get confused when some of the <*thread.h>
2595 * includes below indirectly pull in <perlio.h> (which needs to know if we
2596 * have HASATTRIBUTE_FORMAT).
2597 */
2598
4d7c7898 2599#ifndef PERL_MICRO
fc2007d4 2600#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS		 2601# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
2602# define HASATTRIBUTE_DEPRECATED
2603# endif
c80263a8
SH		 2604# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2605# define HASATTRIBUTE_FORMAT
63cdf24b
SH		 2606# if defined __MINGW32__
2607# define PRINTF_FORMAT_NULL_OK
2608# endif
c80263a8
SH		 2609# endif
2610# if __GNUC__ >= 3 /* 3.0 -> */
2611# define HASATTRIBUTE_MALLOC
2612# endif
2613# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2614# define HASATTRIBUTE_NONNULL
2615# endif
2616# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2617# define HASATTRIBUTE_NORETURN
2618# endif
2619# if __GNUC__ >= 3 /* gcc 3.0 -> */
2620# define HASATTRIBUTE_PURE
2621# endif
42bf5550 2622# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH		 2623# define HASATTRIBUTE_UNUSED
2624# endif
d324fe49
AD		 2625# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2626# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2627# endif
c80263a8
SH		 2628# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2629# define HASATTRIBUTE_WARN_UNUSED_RESULT
2630# endif
2631#endif
00f254e2 2632#endif /* #ifndef PERL_MICRO */
c80263a8 2633
3db8f154 2634/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 2635 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS		 2636 * this results in many functions being undeclared which bothers C++
2637 * May make sense to have threads after "*ish.h" anyway
2638 */
2639
3baee7cc
JH		 2640/* clang Thread Safety Analysis/Annotations/Attributes
2641 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2642 *
bdc795f4 2643 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5).
3baee7cc 2644 * Apple XCode hijacks __clang_major__ and __clang_minor__
bdc795f4
JH		 2645 * (6.1 means really clang 3.6), so needs extra hijinks
2646 * (could probably also test the contents of __apple_build_version__).
3baee7cc
JH		 2647 */
2648#if defined(USE_ITHREADS) && defined(I_PTHREAD) && \
2649 defined(__clang__) && \
ab0fe36e
DM		 2650 !defined(PERL_GLOBAL_STRUCT) && \
2651 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \
3baee7cc
JH		 2652 !defined(SWIG) && \
2653 ((!defined(__apple_build_version__) && \
bdc795f4 2654 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \
8412ccf9 2655 (__clang_major__ >= 4))) || \
3baee7cc 2656 (defined(__apple_build_version__) && \
bdc795f4
JH		 2657 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \
2658 (__clang_major__ >= 7))))
3baee7cc
JH		 2659# define PERL_TSA__(x) __attribute__((x))
2660# define PERL_TSA_ACTIVE
2661#else
2662# define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */
2663# undef PERL_TSA_ACTIVE
2664#endif
2665
2666/* PERL_TSA_CAPABILITY() is used to annotate typedefs.
2667 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type;
2668 */
2669#define PERL_TSA_CAPABILITY(x) \
2670 PERL_TSA__(capability(x))
2671
2672/* In the below examples the mutex must be lexically visible, usually
2673 * either as global variables, or as function arguments. */
2674
2675/* PERL_TSA_GUARDED_BY() is used to annotate global variables.
2676 *
2677 * Foo foo PERL_TSA_GUARDED_BY(mutex);
2678 */
2679#define PERL_TSA_GUARDED_BY(x) \
2680 PERL_TSA__(guarded_by(x))
2681
2682/* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers.
2683 * The data _behind_ the pointer is guarded.
2684 *
2685 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex);
2686 */
2687#define PERL_TSA_PT_GUARDED_BY(x) \
2688 PERL_TSA__(pt_guarded_by(x))
2689
2690/* PERL_TSA_REQUIRES() is used to annotate functions.
2691 * The caller MUST hold the resource when calling the function.
2692 *
2693 * void Foo() PERL_TSA_REQUIRES(mutex);
2694 */
2695#define PERL_TSA_REQUIRES(x) \
2696 PERL_TSA__(requires_capability(x))
2697
2698/* PERL_TSA_EXCLUDES() is used to annotate functions.
2699 * The caller MUST NOT hold resource when calling the function.
2700 *
2701 * EXCLUDES should be used when the function first acquires
2702 * the resource and then releases it. Use to avoid deadlock.
2703 *
2704 * void Foo() PERL_TSA_EXCLUDES(mutex);
2705 */
2706#define PERL_TSA_EXCLUDES(x) \
2707 PERL_TSA__(locks_excluded(x))
2708
2709/* PERL_TSA_ACQUIRE() is used to annotate functions.
2710 * The caller MUST NOT hold the resource when calling the function,
2711 * and the function will acquire the resource.
2712 *
2713 * void Foo() PERL_TSA_ACQUIRE(mutex);
2714 */
2715#define PERL_TSA_ACQUIRE(x) \
2716 PERL_TSA__(acquire_capability(x))
2717
2718/* PERL_TSA_RELEASE() is used to annotate functions.
2719 * The caller MUST hold the resource when calling the function,
2720 * and the function will release the resource.
2721 *
2722 * void Foo() PERL_TSA_RELEASE(mutex);
2723 */
2724#define PERL_TSA_RELEASE(x) \
2725 PERL_TSA__(release_capability(x))
2726
2727/* PERL_TSA_NO_TSA is used to annotate functions.
2728 * Used when being intentionally unsafe, or when the code is too
2729 * complicated for the analysis. Use sparingly.
2730 *
2731 * void Foo() PERL_TSA_NO_TSA;
2732 */
2733#define PERL_TSA_NO_TSA \
2734 PERL_TSA__(no_thread_safety_analysis)
2735
2736/* There are more annotations/attributes available, see the clang
2737 * documentation for details. */
2738
3db8f154 2739#if defined(USE_ITHREADS)
2986a63f 2740# ifdef NETWARE
da5fdda8
AC		 2741# include <nw5thread.h>
2742# elif defined(WIN32)
2743# include <win32thread.h>
2744# elif defined(OS2)
2745# include "os2thread.h"
2746# elif defined(I_MACH_CTHREADS)
2747# include <mach/cthreads.h>
7f3d1cf1
BH		 2748typedef cthread_t perl_os_thread;
2749typedef mutex_t perl_mutex;
2750typedef condition_t perl_cond;
2751typedef void * perl_key;
da5fdda8
AC		 2752# elif defined(I_PTHREAD) /* Posix threads */
2753# include <pthread.h>
7f3d1cf1 2754typedef pthread_t perl_os_thread;
3baee7cc 2755typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex;
7f3d1cf1
BH		 2756typedef pthread_cond_t perl_cond;
2757typedef pthread_key_t perl_key;
da5fdda8 2758# endif
3db8f154 2759#endif /* USE_ITHREADS */
c5be433b 2760
3baee7cc
JH		 2761#ifdef PERL_TSA_ACTIVE
2762/* Since most pthread mutex interfaces have not been annotated, we
2763 * need to have these wrappers. The NO_TSA annotation is quite ugly
2764 * but it cannot be avoided in plain C, unlike in C++, where one could
2765 * e.g. use ACQUIRE() with no arg on a mutex lock method.
2766 *
2767 * The bodies of these wrappers are in util.c
2768 *
2769 * TODO: however, some platforms are starting to get these clang
2770 * thread safety annotations for pthreads, for example FreeBSD.
2771 * Do we need a way to a bypass these wrappers? */
67083b7b 2772EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex)
3baee7cc
JH		 2773 PERL_TSA_ACQUIRE(*mutex)
2774 PERL_TSA_NO_TSA;
67083b7b 2775EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex)
3baee7cc
JH		 2776 PERL_TSA_RELEASE(*mutex)
2777 PERL_TSA_NO_TSA;
2778#endif
2779
66a93824 2780#if defined(WIN32)
1feb2720 2781# include "win32.h"
c5be433b
GS		 2782#endif
2783
2986a63f
JH		 2784#ifdef NETWARE
2785# include "netware.h"
2786#endif
2787
e5218da5 2788#define STATUS_UNIX PL_statusvalue
68dc0745 2789#ifdef VMS
6b88bc9c 2790# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM		 2791/*
2792 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 2793 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM		 2794 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2795 * be updated also.
2796 */
2797# include <stsdef.h>
2798# include <ssdef.h>
2799/* Presume this because if VMS changes it, it will require a new
2800 * set of APIs for waiting on children for binary compatibility.
2801 */
2802# define child_offset_bits (8)
2803# ifndef C_FAC_POSIX
2804# define C_FAC_POSIX 0x35A000
2805# endif
2806
2807/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
2808 * platform from the existing UNIX or Native status values.
2809 */
2810
37038d91 2811# define STATUS_EXIT \
7a7fd8e0
JM		 2812 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2813 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2814
7a7fd8e0 2815
fb38d079
JM		 2816/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2817 * exit code and shifts the UNIX value over the correct number of bits to
2818 * be a child status. Usually the number of bits is 8, but that could be
2819 * platform dependent. The NATIVE status code is presumed to have either
2820 * from a child process.
7a7fd8e0
JM		 2821 */
2822
fb38d079
JM		 2823/* This is complicated. The child processes return a true native VMS
2824 status which must be saved. But there is an assumption in Perl that
2825 the UNIX child status has some relationship to errno values, so
00f254e2 2826 Perl tries to translate it to text in some of the tests.
fb38d079
JM		 2827 In order to get the string translation correct, for the error, errno
2828 must be EVMSERR, but that generates a different text message
2829 than what the test programs are expecting. So an errno value must
2830 be derived from the native status value when an error occurs.
2831 That will hide the true native status message. With this version of
2832 perl, the true native child status can always be retrieved so that
2833 is not a problem. But in this case, Pl_statusvalue and errno may
2834 have different values in them.
2835 */
7a7fd8e0 2836
fb38d079 2837# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 2838 STMT_START { \
2fbb330f
JM		 2839 I32 evalue = (I32)n; \
2840 if (evalue == EVMSERR) { \
2841 PL_statusvalue_vms = vaxc$errno; \
2842 PL_statusvalue = evalue; \
7a7fd8e0 2843 } else { \
2fbb330f 2844 PL_statusvalue_vms = evalue; \
fb38d079 2845 if (evalue == -1) { \
3280af22 2846 PL_statusvalue = -1; \
7a7fd8e0
JM		 2847 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2848 } else \
fb38d079 2849 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 2850 set_vaxc_errno(evalue); \
fb38d079
JM		 2851 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
2852 set_errno(EVMSERR); \
2853 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
2854 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 2855 } \
68dc0745 2856 } STMT_END
7a7fd8e0 2857
68dc0745 2858# ifdef VMSISH_STATUS
e5218da5 2859# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 2860# else
e5218da5 2861# define STATUS_CURRENT STATUS_UNIX
68dc0745 2862# endif
7a7fd8e0
JM		 2863
2864 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2865 * the NATIVE status to an equivalent value. Can not be used to translate
2866 * exit code values as exit code values are not guaranteed to have any
2867 * relationship at all to errno values.
2868 * This is used when Perl is forcing errno to have a specific value.
2869 */
e5218da5 2870# define STATUS_UNIX_SET(n) \
68dc0745 2871 STMT_START { \
7a7fd8e0 2872 I32 evalue = (I32)n; \
0968cdad 2873 PL_statusvalue = evalue; \
3280af22 2874 if (PL_statusvalue != -1) { \
0968cdad
JM		 2875 if (PL_statusvalue != EVMSERR) { \
2876 PL_statusvalue &= 0xFFFF; \
2877 if (MY_POSIX_EXIT) \
2878 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2879 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2880 } \
2881 else { \
2882 PL_statusvalue_vms = vaxc$errno; \
2883 } \
68dc0745 2884 } \
0968cdad
JM		 2885 else PL_statusvalue_vms = SS$_ABORT; \
2886 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM		 2887 } STMT_END
2888
2889 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM		 2890 * the NATIVE error status based on it.
2891 *
2892 * When in the default mode to comply with the Perl VMS documentation,
2893 * 0 is a success and any other code sets the NATIVE status to a failure
2894 * code of SS$_ABORT.
fb38d079
JM		 2895 *
2896 * In the new POSIX EXIT mode, native status will be set so that the
2897 * actual exit code will can be retrieved by the calling program or
2898 * shell.
2899 *
2900 * If the exit code is not clearly a UNIX parent or child exit status,
2901 * it will be passed through as a VMS status.
7a7fd8e0
JM		 2902 */
2903
fb38d079 2904# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM		 2905 STMT_START { \
2906 I32 evalue = (I32)n; \
2907 PL_statusvalue = evalue; \
e08e1e1d
JM		 2908 if (MY_POSIX_EXIT) { \
2909 if (evalue <= 0xFF00) { \
2910 if (evalue > 0xFF) \
2911 evalue = (evalue >> child_offset_bits) & 0xFF; \
2912 PL_statusvalue_vms = \
2913 (C_FAC_POSIX | (evalue << 3 ) | \
2914 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
2915 } else /* forgive them Perl, for they have sinned */ \
2916 PL_statusvalue_vms = evalue; \
2917 } else { \
2918 if (evalue == 0) \
2919 PL_statusvalue_vms = SS$_NORMAL; \
2920 else if (evalue <= 0xFF00) \
2921 PL_statusvalue_vms = SS$_ABORT; \
2922 else { /* forgive them Perl, for they have sinned */ \
2923 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
2924 else PL_statusvalue_vms = vaxc$errno; \
2925 /* And obviously used a VMS status value instead of UNIX */ \
2926 PL_statusvalue = EVMSERR; \
2927 } \
2928 set_vaxc_errno(PL_statusvalue_vms); \
2929 } \
68dc0745 2930 } STMT_END
fb38d079 2931
e08e1e1d 2932
6ac6a52b
JM		 2933 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
2934 * and sets the NATIVE error status based on it. This special case
2935 * is needed to maintain compatibility with past VMS behavior.
2936 *
2937 * In the default mode on VMS, this number is passed through as
2938 * both the NATIVE and UNIX status. Which makes it different
2939 * that the STATUS_UNIX_EXIT_SET.
2940 *
2941 * In the new POSIX EXIT mode, native status will be set so that the
2942 * actual exit code will can be retrieved by the calling program or
2943 * shell.
2944 *
1a3aec58
JM		 2945 * A POSIX exit code is from 0 to 255. If the exit code is higher
2946 * than this, it needs to be assumed that it is a VMS exit code and
2947 * passed through.
6ac6a52b
JM		 2948 */
2949
2950# define STATUS_EXIT_SET(n) \
2951 STMT_START { \
2952 I32 evalue = (I32)n; \
2953 PL_statusvalue = evalue; \
2954 if (MY_POSIX_EXIT) \
1a3aec58
JM		 2955 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
2956 PL_statusvalue_vms = \
2957 (C_FAC_POSIX | (evalue << 3 ) | \
2958 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM		 2959 else \
2960 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
2961 set_vaxc_errno(PL_statusvalue_vms); \
2962 } STMT_END
2963
fb38d079
JM		 2964
2965 /* This macro forces a success status */
7a7fd8e0
JM		 2966# define STATUS_ALL_SUCCESS \
2967 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM		 2968
2969 /* This macro forces a failure status */
7a7fd8e0
JM		 2970# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
2971 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
2972 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 2973
738ab09f
AB		 2974#elif defined(__amigaos4__)
2975 /* A somewhat experimental attempt to simulate posix return code values */
2976# define STATUS_NATIVE PL_statusvalue_posix
2977# define STATUS_NATIVE_CHILD_SET(n) \
2978 STMT_START { \
2979 PL_statusvalue_posix = (n); \
2980 if (PL_statusvalue_posix < 0) { \
2981 PL_statusvalue = -1; \
2982 } \
2983 else { \
2984 PL_statusvalue = n << 8; \
2985 } \
2986 } STMT_END
2987# define STATUS_UNIX_SET(n) \
2988 STMT_START { \
2989 PL_statusvalue = (n); \
2990 if (PL_statusvalue != -1) \
2991 PL_statusvalue &= 0xFFFF; \
2992 } STMT_END
2993# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
2994# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
2995# define STATUS_CURRENT STATUS_UNIX
2996# define STATUS_EXIT STATUS_UNIX
2997# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
2998# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
2999
68dc0745 3000#else
e5218da5 3001# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3002# if defined(WCOREDUMP)
37038d91 3003# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3004 STMT_START { \
3005 PL_statusvalue_posix = (n); \
3006 if (PL_statusvalue_posix == -1) \
3007 PL_statusvalue = -1; \
3008 else { \
3009 PL_statusvalue = \
3010 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3011 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3012 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3013 } \
3014 } STMT_END
3015# elif defined(WIFEXITED)
37038d91 3016# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3017 STMT_START { \
3018 PL_statusvalue_posix = (n); \
3019 if (PL_statusvalue_posix == -1) \
3020 PL_statusvalue = -1; \
3021 else { \
3022 PL_statusvalue = \
3023 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3024 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3025 } \
3026 } STMT_END
3027# else
37038d91 3028# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3029 STMT_START { \
3030 PL_statusvalue_posix = (n); \
3031 if (PL_statusvalue_posix == -1) \
3032 PL_statusvalue = -1; \
3033 else { \
3034 PL_statusvalue = \
3035 PL_statusvalue_posix & 0xFFFF; \
3036 } \
3037 } STMT_END
3038# endif
3039# define STATUS_UNIX_SET(n) \
68dc0745 3040 STMT_START { \
3280af22
NIS		 3041 PL_statusvalue = (n); \
3042 if (PL_statusvalue != -1) \
3043 PL_statusvalue &= 0xFFFF; \
68dc0745 3044 } STMT_END
7a7fd8e0 3045# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3046# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3047# define STATUS_CURRENT STATUS_UNIX
37038d91 3048# define STATUS_EXIT STATUS_UNIX
e5218da5
GA		 3049# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3050# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745 3051#endif
3052
cc3604b1
GS		 3053/* flags in PL_exit_flags for nature of exit() */
3054#define PERL_EXIT_EXPECTED 0x01
31d77e54 3055#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM		 3056#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3057#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3058
b79b76e0 3059#ifndef PERL_CORE
a7cb1f99 3060/* format to use for version numbers in file/directory names */
273cf8d1 3061/* XXX move to Configure? */
b79b76e0
NC		 3062/* This was only ever used for the current version, and that can be done at
3063 compile time, as PERL_FS_VERSION, so should we just delete it? */
3064# ifndef PERL_FS_VER_FMT
3065# define PERL_FS_VER_FMT "%d.%d.%d"
3066# endif
3067#endif
3068
3069#ifndef PERL_FS_VERSION
3070# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS		 3071#endif
3072
45bc9206 3073/* This defines a way to flush all output buffers. This may be a
76549fef
JH		 3074 * performance issue, so we allow people to disable it. Also, if
3075 * we are using stdio, there are broken implementations of fflush(NULL)
3076 * out there, Solaris being the most prominent.
45bc9206
GS		 3077 */
3078#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3079# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3080# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
da5fdda8
AC		 3081# elif defined(FFLUSH_ALL)
3082# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
767df6a1 3083# else
da5fdda8 3084# define PERL_FLUSHALL_FOR_CHILD NOOP
66fe083f 3085# endif
45bc9206
GS		 3086#endif
3087
7766f137
GS		 3088#ifndef PERL_WAIT_FOR_CHILDREN
3089# define PERL_WAIT_FOR_CHILDREN NOOP
3090#endif
3091
ba869deb 3092/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS		 3093#ifndef PERL_SET_INTERP
3094# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3095#endif
3096
3097#ifndef PERL_GET_INTERP
3098# define PERL_GET_INTERP (PL_curinterp)
3099#endif
3100
54aff467 3101#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3102# ifdef MULTIPLICITY
ba869deb 3103# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3104# endif
ba869deb
GS		 3105# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3106#endif
3107
00f254e2 3108/*
8896765a 3109 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3110 All that is required is that the perl source does not
00f254e2
KW		 3111 use "%-p" or "%-<number>p" or "%<number>p" formats.
3112 These formats will still work in perl code.
486ec47a 3113 See comments in sv.c for further details.
8896765a 3114
8896765a 3115 Robin Barker 2005-07-14
f46d31f2 3116
00f254e2 3117 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3118*/
8896765a
RB		 3119
3120#ifndef SVf_
63ce7bf0 3121# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS		 3122#endif
3123
8896765a 3124#ifndef SVf
104abab4 3125# define SVf "-p"
d2560b70
RB		 3126#endif
3127
014ead4b 3128#ifndef SVf32
8896765a 3129# define SVf32 SVf_(32)
014ead4b
RB		 3130#endif
3131
3132#ifndef SVf256
8896765a
RB		 3133# define SVf256 SVf_(256)
3134#endif
3135
be2597df
MHM		 3136#define SVfARG(p) ((void*)(p))
3137
20023040
FC		 3138#ifndef HEKf
3139# define HEKf "2p"
3140#endif
3141
b8fa5213
FC		 3142/* Not ideal, but we cannot easily include a number in an already-numeric
3143 * format sequence. */
3144#ifndef HEKf256
3145# define HEKf256 "3p"
3146#endif
3147
20023040
FC		 3148#define HEKfARG(p) ((void*)(p))
3149
b17a0679
FC		 3150/* Takes three arguments: is_utf8, length, str */
3151#ifndef UTF8f
61608bb7 3152# define UTF8f "d%" UVuf "%4p"
b17a0679
FC		 3153#endif
3154#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3155
0f94cb1f
FC		 3156#define PNf UTF8f
3157#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3158
f46d31f2 3159#ifdef PERL_CORE
486ec47a 3160/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98 3161# undef UVf
da5fdda8
AC		 3162#elif !defined(UVf)
3163# define UVf UVuf
d2560b70
RB		 3164#endif
3165
fcdf39cf
RGS		 3166#ifdef HASATTRIBUTE_DEPRECATED
3167# define __attribute__deprecated__ __attribute__((deprecated))
3168#endif
0dbb1585
AL		 3169#ifdef HASATTRIBUTE_FORMAT
3170# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3171#endif
3172#ifdef HASATTRIBUTE_MALLOC
77785eea 3173# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3174#endif
0dbb1585 3175#ifdef HASATTRIBUTE_NONNULL
abb2c242 3176# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3177#endif
0dbb1585 3178#ifdef HASATTRIBUTE_NORETURN
abb2c242 3179# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3180#endif
0dbb1585 3181#ifdef HASATTRIBUTE_PURE
abb2c242 3182# define __attribute__pure__ __attribute__((pure))
f22be1b8 3183#endif
0dbb1585
AL		 3184#ifdef HASATTRIBUTE_UNUSED
3185# define __attribute__unused__ __attribute__((unused))
3186#endif
3187#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3188# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH		 3189#endif
3190
0dbb1585 3191/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS		 3192#ifndef __attribute__deprecated__
3193# define __attribute__deprecated__
3194#endif
0dbb1585
AL		 3195#ifndef __attribute__format__
3196# define __attribute__format__(x,y,z)
3197#endif
f22be1b8 3198#ifndef __attribute__malloc__
abb2c242 3199# define __attribute__malloc__
f22be1b8
JH		 3200#endif
3201#ifndef __attribute__nonnull__
abb2c242 3202# define __attribute__nonnull__(a)
f22be1b8
JH		 3203#endif
3204#ifndef __attribute__noreturn__
abb2c242 3205# define __attribute__noreturn__
f22be1b8
JH		 3206#endif
3207#ifndef __attribute__pure__
abb2c242 3208# define __attribute__pure__
f22be1b8 3209#endif
0dbb1585
AL		 3210#ifndef __attribute__unused__
3211# define __attribute__unused__
3212#endif
f22be1b8 3213#ifndef __attribute__warn_unused_result__
abb2c242
JH		 3214# define __attribute__warn_unused_result__
3215#endif
3216
6ff2ec7d
AC		 3217#if !defined(DEBUGGING) && !defined(NDEBUG)
3218# define NDEBUG 1
cd13e623 3219#endif
6ff2ec7d 3220#include <assert.h>
cd13e623 3221
0dbb1585
AL		 3222/* For functions that are marked as __attribute__noreturn__, it's not
3223 appropriate to call return. In either case, include the lint directive.
3224 */
3225#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3226# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3227#else
bc3d2941 3228# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH		 3229#endif
3230
cdfeb707
RB		 3231/* Some OS warn on NULL format to printf */
3232#ifdef PRINTF_FORMAT_NULL_OK
3233# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3234#else
00f254e2 3235# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB		 3236#endif
3237
635aebb7 3238#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL		 3239# define EXPECT(expr,val) __builtin_expect(expr,val)
3240#else
3241# define EXPECT(expr,val) (expr)
3242#endif
6d5abc62
NC		 3243#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3244#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL		 3245#ifdef HAS_BUILTIN_CHOOSE_EXPR
3246/* placeholder */
3247#endif
b37c2d43 3248
a36ca6de 3249/* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile
5074d4c5
LM		 3250 time invariants. That is, their argument must be a constant expression that
3251 can be verified by the compiler. This expression can contain anything that's
3252 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3253 the expression evaluates to 0, compilation fails.
3254 Because they generate no runtime code (i.e. their use is "free"), they're
3255 always active, even under non-DEBUGGING builds.
a36ca6de 3256 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at
5074d4c5
LM		 3257 file scope (outside of any function).
3258 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3259 function.
3260*/
7ea096df 3261#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610 3262/* static_assert is a macro defined in <assert.h> in C11 or a compiler
a36ca6de
LM		 3263 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no
3264 matter what <assert.h> says.
6d59e610 3265*/
a36ca6de 3266# define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND)
6d59e610
LM		 3267#else
3268/* We use a bit-field instead of an array because gcc accepts
3269 'typedef char x[n]' where n is not a compile-time constant.
3270 We want to enforce constantness.
3271*/
3272# define STATIC_ASSERT_2(COND, SUFFIX) \
3273 typedef struct { \
3274 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3275 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3276# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
a36ca6de 3277# define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__)
6d59e610
LM		 3278#endif
3279/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3280 error (static_assert is a declaration, and only statements can have labels).
3281*/
21aae866 3282#define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END
ae103e09
DD		 3283
3284#ifndef __has_builtin
3285# define __has_builtin(x) 0 /* not a clang style compiler */
3286#endif
3287
3288/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3289 hint to a compiler about a statement of fact in a function call free
3290 expression, which allows the compiler to generate better machine code.
3291 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3292 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3293 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD		 3294 intrinsic function, see its documents for more details.
3295*/
3296
3297#ifndef DEBUGGING
3298# if __has_builtin(__builtin_unreachable) \
d1020b40 3299 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD		 3300# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3301# elif defined(_MSC_VER)
3302# define ASSUME(x) __assume(x)
3303# elif defined(__ARMCC_VERSION) /* untested */
3304# define ASSUME(x) __promise(x)
3305# else
3306/* a random compiler might define assert to its own special optimization token
3307 so pass it through to C lib as a last resort */
3308# define ASSUME(x) assert(x)
3309# endif
3310#else
3311# define ASSUME(x) assert(x)
3312#endif
3313
dbc47c6f
KW		 3314#if defined(__sun) /* ASSUME() generates warnings on Solaris */
3315# define NOT_REACHED
2145f4b6
LM		 3316#elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \
3317 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */
3318# define NOT_REACHED STMT_START { ASSUME(0); __builtin_unreachable(); } STMT_END
dbc47c6f
KW		 3319#else
3320# define NOT_REACHED ASSUME(0)
3321#endif
ae103e09 3322
3fc1aec6 3323/* Some unistd.h's give a prototype for pause() even though
3324 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3325 below to be rejected by the compiler. Sigh.
3fc1aec6 3326*/
3327#ifdef HAS_PAUSE
3328#define Pause pause
3329#else
3330#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 3331#endif
3332
3333#ifndef IOCPARM_LEN
3334# ifdef IOCPARM_MASK
61f1c44b 3335 /* on BSDish systems we're safe */
748a9306 3336# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
da5fdda8 3337# elif defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0 3338 /* on Linux systems we're safe; except when we're not [perl #38223] */
da5fdda8
AC		 3339# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3340# else
748a9306 3341 /* otherwise guess at what's safe */
da5fdda8 3342# define IOCPARM_LEN(x) 256
748a9306 3343# endif
a0d0e21e
LW		 3344#endif
3345
1761cee5 3346#if defined(__CYGWIN__)
521e0776
GS		 3347/* USEMYBINMODE
3348 * This symbol, if defined, indicates that the program should
16fe6d59 3349 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS		 3350 * that a file is in "binary" mode -- that is, that no translation
3351 * of bytes occurs on read or write operations.
3352 */
36894f0b 3353# define USEMYBINMODE /**/
77a40698 3354# include <io.h> /* for setmode() prototype */
16fe6d59 3355# define my_binmode(fp, iotype, mode) \
8298454c 3356 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1)
5aabfad6 3357#endif
3358
88d10794
JH		 3359#ifdef __CYGWIN__
3360void init_os_extras(void);
3361#endif
3362
cea2e8a9
GS		 3363#ifdef UNION_ANY_DEFINITION
3364UNION_ANY_DEFINITION;
3365#else
3366union any {
3367 void* any_ptr;
c9728782
DM		 3368 SV* any_sv;
3369 SV** any_svp;
3370 GV* any_gv;
3371 AV* any_av;
3372 HV* any_hv;
6ffb8402 3373 OP* any_op;
c9728782
DM		 3374 char* any_pv;
3375 char** any_pvp;
cea2e8a9 3376 I32 any_i32;
ae103e09 3377 U32 any_u32;
cea2e8a9 3378 IV any_iv;
c6bf6a65 3379 UV any_uv;
cea2e8a9 3380 long any_long;
9febdf04 3381 bool any_bool;
c76ac1ee 3382 void (*any_dptr) (void*);
acfe0abc 3383 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS		 3384};
3385#endif
3386
acfe0abc 3387typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS		 3388
3389#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM		 3390#define FILTER_DATA(idx) \
3391 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3392#define FILTER_ISREADER(idx) \
3393 (PL_parser && PL_parser->rsfp_filters \
3394 && idx >= AvFILLp(PL_parser->rsfp_filters))
3395#define PERL_FILTER_EXISTS(i) \
3396 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3397 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3398
c5078cac
JH		 3399#if defined(_AIX) && !defined(_AIX43)
3400#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3401/* We cannot include <crypt.h> to get the struct crypt_data
3402 * because of setkey prototype problems when threading */
3403typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3404 /* From OSF, Not needed in AIX
3405 char C[28], D[28];
3406 */
3407 char E[48];
3408 char KS[16][48];
3409 char block[66];
3410 char iobuf[16];
3411} CRYPTD;
3412#endif /* threading */
3413#endif /* AIX */
3414
fc6bde6f
DD		 3415#ifndef PERL_CALLCONV
3416# ifdef __cplusplus
3417# define PERL_CALLCONV extern "C"
3418# else
3419# define PERL_CALLCONV
3420# endif
3421#endif
3422#ifndef PERL_CALLCONV_NO_RET
3423# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3424#endif
3425
3426/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3427 dont have a noreturn as a declaration specifier
3428*/
3429#ifndef PERL_STATIC_NO_RET
3430# define PERL_STATIC_NO_RET STATIC
3431#endif
3432/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3433 builds that dont have a noreturn as a declaration specifier
3434*/
3435#ifndef PERL_STATIC_INLINE_NO_RET
3436# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3437#endif
3438
e37778c2 3439#if !defined(OS2)
2c2d71f5
JH		 3440# include "iperlsys.h"
3441#endif
504f80c1 3442
9c12f1e5 3443#ifdef __LIBCATAMOUNT__
00f254e2 3444#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS		 3445#undef HAS_GROUP
3446#define FAKE_BIT_BUCKET
3447#endif
3448
d10dc2ae 3449/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
1a237f4f
YO		 3450 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by
3451 * Configure, despite their names being similar to other defines like
3452 * USE_ITHREADS. Configure in fact knows nothing about the randomised
3453 * hashes. Therefore to enable/disable the hash randomisation defines
3454 * use the Configure -Accflags=... instead. */
3455#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED)
4546b9e6 3456# define USE_HASH_SEED
504f80c1
JH		 3457#endif
3458
598921a7
NC		 3459#include "perly.h"
3460
598921a7 3461
654eccd5
JD		 3462/* macros to define bit-fields in structs. */
3463#ifndef PERL_BITFIELD8
3464# define PERL_BITFIELD8 unsigned
3465#endif
3466#ifndef PERL_BITFIELD16
3467# define PERL_BITFIELD16 unsigned
3468#endif
3469#ifndef PERL_BITFIELD32
3470# define PERL_BITFIELD32 unsigned
3471#endif
3472
79072805 3473#include "sv.h"
288b8c02 3474#include "regexp.h"
378cc40b 3475#include "util.h"
8d063cd8 3476#include "form.h"
79072805 3477#include "gv.h"
dd2155a4 3478#include "pad.h"
79072805 3479#include "cv.h"
abdd5c84 3480#include "opnames.h"
79072805 3481#include "op.h"
b3ca2e83 3482#include "hv.h"
79072805
LW		 3483#include "cop.h"
3484#include "av.h"
79072805
LW		 3485#include "mg.h"
3486#include "scope.h"
4438c4b7 3487#include "warnings.h"
a0ed51b3 3488#include "utf8.h"
8d063cd8 3489
0d7d409d
DM		 3490/* these would be in doio.h if there was such a file */
3491#define my_stat() my_stat_flags(SV_GMAGIC)
3492#define my_lstat() my_lstat_flags(SV_GMAGIC)
3493
20f4945e 3494/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM		 3495#undef _XPV_HEAD
3496#undef _XPVMG_HEAD
3497#undef _XPVCV_COMMON
7fae4e64 3498
199e78b7
DM		 3499#include "parser.h"
3500
455ece5e 3501typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3502
2260ab51
KW		 3503#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3504
3505/* These have to be predeclared, as they are used in proto.h which is #included
3506 * before their definitions in regcomp.h. */
3507
3508struct scan_data_t;
7dcac5f6
KW		 3509typedef struct regnode_charclass regnode_charclass;
3510
2260ab51 3511struct regnode_charclass_class;
d1d040e5
KW		 3512
3513/* A hopefully less confusing name. The sub-classes are all Posix classes only
3514 * used under /l matching */
3515typedef struct regnode_charclass_class regnode_charclass_posixl;
3516
b8f7bb16 3517typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW		 3518typedef struct RExC_state_t RExC_state_t;
3519struct _reg_trie_data;
76e3520e 3520
2260ab51
KW		 3521#endif
3522
5f7fde29
GS		 3523struct ptr_tbl_ent {
3524 struct ptr_tbl_ent* next;
53c1dcc0 3525 const void* oldval;
5f7fde29 3526 void* newval;
d18c6117
GS		 3527};
3528
5f7fde29
GS		 3529struct ptr_tbl {
3530 struct ptr_tbl_ent** tbl_ary;
3531 UV tbl_max;
3532 UV tbl_items;
db93c0c4
NC		 3533 struct ptr_tbl_arena *tbl_arena;
3534 struct ptr_tbl_ent *tbl_arena_next;
3535 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS		 3536};
3537
fe14fcc3
LW		 3538#if defined(htonl) && !defined(HAS_HTONL)
3539#define HAS_HTONL
ae986130 3540#endif
fe14fcc3
LW		 3541#if defined(htons) && !defined(HAS_HTONS)
3542#define HAS_HTONS
ae986130 3543#endif
fe14fcc3
LW		 3544#if defined(ntohl) && !defined(HAS_NTOHL)
3545#define HAS_NTOHL
ae986130 3546#endif
fe14fcc3
LW		 3547#if defined(ntohs) && !defined(HAS_NTOHS)
3548#define HAS_NTOHS
ae986130 3549#endif
fe14fcc3 3550#ifndef HAS_HTONL
fe14fcc3
LW		 3551#define HAS_HTONS
3552#define HAS_HTONL
3553#define HAS_NTOHS
3554#define HAS_NTOHL
8e2d7c44
NC		 3555# if (BYTEORDER & 0xffff) == 0x4321
3556/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3557 re-order their values. However, to behave identically to the alternative
3558 implementations, they should truncate to the correct size. */
3559# define ntohl(x) ((x)&0xFFFFFFFF)
3560# define htonl(x) ntohl(x)
3561# define ntohs(x) ((x)&0xFFFF)
3562# define htons(x) ntohs(x)
e4b03fed
NC		 3563# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3564
3565/* Note that we can't straight out declare our own htonl and htons because
3566 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3567 to avoid the overhead of initialising the socket subsystem, but the headers
3568 that *declare* the various functions are still seen. If we declare our own
3569 htonl etc they will clash with the declarations in the Win32 headers. */
3570
3571PERL_STATIC_INLINE U32
3572my_swap32(const U32 x) {
3573 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3574 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3575}
3576
3577PERL_STATIC_INLINE U16
3578my_swap16(const U16 x) {
3579 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3580}
3581
3582# define htonl(x) my_swap32(x)
3583# define ntohl(x) my_swap32(x)
3584# define ntohs(x) my_swap16(x)
3585# define htons(x) my_swap16(x)
8e2d7c44 3586# else
691a44df
NC		 3587# error "Unsupported byteorder"
3588/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3589 the error message. Please check the value of the macro BYTEORDER, as defined
3590 in config.h. The values of BYTEORDER we expect are
3591
3592 big endian little endian
3593 32 bit 0x4321 0x1234
3594 64 bit 0x87654321 0x12345678
3595
3596 If you have a system with a different byte order, please see
3597 pod/perlhack.pod for how to submit a patch to add supporting code.
3598*/
3599# endif
a687059c
LW		 3600#endif
3601
988174c1
LW		 3602/*
3603 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3604 * -DWS
3605 */
5ae72479 3606#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC		 3607/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3608 re-order their values. However, to behave identically to the alternative
3609 implementations, they should truncate to the correct size. */
3610# define vtohl(x) ((x)&0xFFFFFFFF)
3611# define vtohs(x) ((x)&0xFFFF)
3612# define htovl(x) vtohl(x)
3613# define htovs(x) vtohs(x)
545872c5 3614#elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW		 3615# define vtohl(x) ((((x)&0xFF)<<24) \
3616 +(((x)>>24)&0xFF) \
3617 +(((x)&0x0000FF00)<<8) \
3618 +(((x)&0x00FF0000)>>8) )
3619# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3620# define htovl(x) vtohl(x)
3621# define htovs(x) vtohs(x)
545872c5
NC		 3622#else
3623# error "Unsupported byteorder"
3624/* If you have need for current perl on PDP-11 or similar, and can help test
3625 that blead keeps working on a mixed-endian system, then see
3626 pod/perlhack.pod for how to submit patches to things working again. */
2a8c3029 3627#endif
988174c1 3628
3bb7c1b4
JH		 3629/* *MAX Plus 1. A floating point value.
3630 Hopefully expressed in a way that dodgy floating point can't mess up.
3631 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3632 is added to it
3633 May find that some broken compiler will want the value cast to I32.
3634 [after the shift, as signed >> may not be as secure as unsigned >>]
3635*/
3636#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3637#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3638/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3639 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3640 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3641*/
3642#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3643
3bb7c1b4
JH		 3644#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3645#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3646#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3647
3648/* This may look like unnecessary jumping through hoops, but converting
3649 out of range floating point values to integers *is* undefined behaviour,
3650 and it is starting to bite.
3651*/
3652#ifndef CAST_INLINE
65202027 3653#define I_32(what) (cast_i32((NV)(what)))
3bb7c1b4 3654#define U_32(what) (cast_ulong((NV)(what)))
65202027
DS		 3655#define I_V(what) (cast_iv((NV)(what)))
3656#define U_V(what) (cast_uv((NV)(what)))
3bb7c1b4
JH		 3657#else
3658#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3659 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3660 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3661#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3662 : ((n) < U32_MAX_P1 ? (U32) (n) \
3663 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
5d9574c1
DM		 3664#define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3665 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3bb7c1b4 3666 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
5d9574c1
DM		 3667#define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3668 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3bb7c1b4
JH		 3669 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3670#endif
3671
3672#define U_S(what) ((U16)U_32(what))
3673#define U_I(what) ((unsigned int)U_32(what))
3674#define U_L(what) U_32(what)
ed6116ce 3675
ed140128
AD		 3676#ifdef HAS_SIGNBIT
3677# define Perl_signbit signbit
3678#endif
3679
2d4389e4
JH		 3680/* These do not care about the fractional part, only about the range. */
3681#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
24db6c0d 3682#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2d4389e4 3683
25da4f38
IZ		 3684/* Used with UV/IV arguments: */
3685 /* XXXX: need to speed it up */
3686#define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3687#define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3688
352d5a3a
LW		 3689#ifndef MAXSYSFD
3690# define MAXSYSFD 2
3691#endif
ee0007ab 3692
79072805 3693#ifndef __cplusplus
e37d7e38 3694#if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
20ce7b12
GS		 3695Uid_t getuid (void);
3696Uid_t geteuid (void);
3697Gid_t getgid (void);
3698Gid_t getegid (void);
79072805 3699#endif
e1caacb4 3700#endif
8d063cd8 3701
0c30d9ec 3702#ifndef Perl_debug_log
bf49b057
GS		 3703# define Perl_debug_log PerlIO_stderr()
3704#endif
3705
3706#ifndef Perl_error_log
3707# define Perl_error_log (PL_stderrgv \
6b78add2 3708 && isGV(PL_stderrgv) \
01bb7c6d 3709 && GvIOp(PL_stderrgv) \
42de951c 3710 && IoOFP(GvIOp(PL_stderrgv)) \
bf49b057
GS		 3711 ? IoOFP(GvIOp(PL_stderrgv)) \
3712 : PerlIO_stderr())
0c30d9ec 3713#endif
3967c732 3714
aea4f609
DM		 3715
3716#define DEBUG_p_FLAG 0x00000001 /* 1 */
3717#define DEBUG_s_FLAG 0x00000002 /* 2 */
3718#define DEBUG_l_FLAG 0x00000004 /* 4 */
3719#define DEBUG_t_FLAG 0x00000008 /* 8 */
3720#define DEBUG_o_FLAG 0x00000010 /* 16 */
3721#define DEBUG_c_FLAG 0x00000020 /* 32 */
3722#define DEBUG_P_FLAG 0x00000040 /* 64 */
3723#define DEBUG_m_FLAG 0x00000080 /* 128 */
3724#define DEBUG_f_FLAG 0x00000100 /* 256 */
3725#define DEBUG_r_FLAG 0x00000200 /* 512 */
3726#define DEBUG_x_FLAG 0x00000400 /* 1024 */
3727#define DEBUG_u_FLAG 0x00000800 /* 2048 */
88d2d28a
JC		 3728/* U is reserved for Unofficial, exploratory hacking */
3729#define DEBUG_U_FLAG 0x00001000 /* 4096 */
fcd573e7 3730/* spare 8192 */
aea4f609
DM		 3731#define DEBUG_X_FLAG 0x00004000 /* 16384 */
3732#define DEBUG_D_FLAG 0x00008000 /* 32768 */
56967202 3733#define DEBUG_S_FLAG 0x00010000 /* 65536 */
aea4f609 3734#define DEBUG_T_FLAG 0x00020000 /* 131072 */
04932ac8 3735#define DEBUG_R_FLAG 0x00040000 /* 262144 */
1045810a 3736#define DEBUG_J_FLAG 0x00080000 /* 524288 */
d6721266 3737#define DEBUG_v_FLAG 0x00100000 /*1048576 */
46187eeb 3738#define DEBUG_C_FLAG 0x00200000 /*2097152 */
ecae49c0 3739#define DEBUG_A_FLAG 0x00400000 /*4194304 */
a3c98653 3740#define DEBUG_q_FLAG 0x00800000 /*8388608 */
cc8773c0
CS		 3741#define DEBUG_M_FLAG 0x01000000 /*16777216*/
3742#define DEBUG_B_FLAG 0x02000000 /*33554432*/
69014004 3743#define DEBUG_L_FLAG 0x04000000 /*67108864*/
e17bc05a
TC		 3744#define DEBUG_i_FLAG 0x08000000 /*134217728*/
3745#define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */
aea4f609
DM		 3746
3747#define DEBUG_DB_RECURSE_FLAG 0x40000000
31ada1fb 3748#define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
aea4f609 3749
36195052
KW		 3750# define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG)
3751# define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG)
3752# define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG)
3753# define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG)
3754# define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG)
3755# define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG)
3756# define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG)
3757# define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG)
3758# define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG)
3759# define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG)
3760# define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG)
3761# define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG)
3762# define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG)
36195052
KW		 3763# define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG)
3764# define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG)
3765# define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG)
3766# define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG)
3767# define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG)
3768# define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG)
3769# define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG)
3770# define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG)
3771# define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG)
3772# define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG)
3773# define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG)
3774# define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG)
3775# define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG)
3776# define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG)
dd2155a4 3777# define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
7949c6f5 3778# define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
ad9e76a8 3779# define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
bbc98134 3780# define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
bd16a5f0 3781
3967c732 3782#ifdef DEBUGGING
aea4f609 3783
bd16a5f0
IZ		 3784# define DEBUG_p_TEST DEBUG_p_TEST_
3785# define DEBUG_s_TEST DEBUG_s_TEST_
3786# define DEBUG_l_TEST DEBUG_l_TEST_
3787# define DEBUG_t_TEST DEBUG_t_TEST_
3788# define DEBUG_o_TEST DEBUG_o_TEST_
3789# define DEBUG_c_TEST DEBUG_c_TEST_
3790# define DEBUG_P_TEST DEBUG_P_TEST_
3791# define DEBUG_m_TEST DEBUG_m_TEST_
3792# define DEBUG_f_TEST DEBUG_f_TEST_
3793# define DEBUG_r_TEST DEBUG_r_TEST_
3794# define DEBUG_x_TEST DEBUG_x_TEST_
3795# define DEBUG_u_TEST DEBUG_u_TEST_
88d2d28a 3796# define DEBUG_U_TEST DEBUG_U_TEST_
bd16a5f0
IZ		 3797# define DEBUG_X_TEST DEBUG_X_TEST_
3798# define DEBUG_D_TEST DEBUG_D_TEST_
56967202 3799# define DEBUG_S_TEST DEBUG_S_TEST_
bd16a5f0
IZ		 3800# define DEBUG_T_TEST DEBUG_T_TEST_
3801# define DEBUG_R_TEST DEBUG_R_TEST_
1045810a 3802# define DEBUG_J_TEST DEBUG_J_TEST_
d6721266 3803# define DEBUG_v_TEST DEBUG_v_TEST_
46187eeb 3804# define DEBUG_C_TEST DEBUG_C_TEST_
ecae49c0 3805# define DEBUG_A_TEST DEBUG_A_TEST_
a3c98653 3806# define DEBUG_q_TEST DEBUG_q_TEST_
d7c0d282 3807# define DEBUG_M_TEST DEBUG_M_TEST_
cc8773c0 3808# define DEBUG_B_TEST DEBUG_B_TEST_
69014004 3809# define DEBUG_L_TEST DEBUG_L_TEST_
e17bc05a 3810# define DEBUG_i_TEST DEBUG_i_TEST_
7949c6f5
JC		 3811# define DEBUG_Xv_TEST DEBUG_Xv_TEST_
3812# define DEBUG_Uv_TEST DEBUG_Uv_TEST_
ad9e76a8 3813# define DEBUG_Pv_TEST DEBUG_Pv_TEST_
bbc98134 3814# define DEBUG_Lv_TEST DEBUG_Lv_TEST_
aea4f609 3815
488b0c7a 3816# define PERL_DEB(a) a
11f9ab1a 3817# define PERL_DEB2(a,b) a
488b0c7a 3818# define PERL_DEBUG(a) if (PL_debug) a
aea4f609
DM		 3819# define DEBUG_p(a) if (DEBUG_p_TEST) a
3820# define DEBUG_s(a) if (DEBUG_s_TEST) a
3821# define DEBUG_l(a) if (DEBUG_l_TEST) a
3822# define DEBUG_t(a) if (DEBUG_t_TEST) a
3823# define DEBUG_o(a) if (DEBUG_o_TEST) a
3824# define DEBUG_c(a) if (DEBUG_c_TEST) a
3825# define DEBUG_P(a) if (DEBUG_P_TEST) a
3826
969058bb
VK		 3827 /* Temporarily turn off memory debugging in case the a
3828 * does memory allocation, either directly or indirectly. */
acfe0abc 3829# define DEBUG_m(a) \
f60d22a6
KW		 3830 STMT_START { \
3831 if (PERL_GET_INTERP) { \
3832 dTHX; \
3833 if (DEBUG_m_TEST) { \
3834 PL_debug &= ~DEBUG_m_FLAG; \
3835 a; \
3836 PL_debug |= DEBUG_m_FLAG; \
3837 } \
3838 } \
0b250b9e 3839 } STMT_END
aea4f609 3840
f60d22a6
KW		 3841# define DEBUG__(t, a) \
3842 STMT_START { \
3843 if (t) STMT_START {a;} STMT_END; \
3844 } STMT_END
5f80b19c
AMS		 3845
3846# define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
f60d22a6 3847
f9f4320a 3848#ifndef PERL_EXT_RE_BUILD
5f80b19c 3849# define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
f9f4320a
YO		 3850#else
3851# define DEBUG_r(a) STMT_START {a;} STMT_END
3852#endif /* PERL_EXT_RE_BUILD */
f60d22a6 3853
5f80b19c
AMS		 3854# define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
3855# define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
88d2d28a 3856# define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
5f80b19c
AMS		 3857# define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
3858# define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
7949c6f5
JC		 3859# define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
3860# define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
ad9e76a8 3861# define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
bbc98134 3862# define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
aea4f609 3863
56967202 3864# define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
5f80b19c
AMS		 3865# define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
3866# define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
d6721266 3867# define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
46187eeb 3868# define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
ecae49c0
NC		 3869# define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
3870# define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
d7c0d282 3871# define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
cc8773c0 3872# define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
69014004 3873# define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
e17bc05a 3874# define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a)
aea4f609
DM		 3875
3876#else /* DEBUGGING */
3877
3878# define DEBUG_p_TEST (0)
3879# define DEBUG_s_TEST (0)
3880# define DEBUG_l_TEST (0)
3881# define DEBUG_t_TEST (0)
3882# define DEBUG_o_TEST (0)
3883# define DEBUG_c_TEST (0)
3884# define DEBUG_P_TEST (0)
3885# define DEBUG_m_TEST (0)
3886# define DEBUG_f_TEST (0)
3887# define DEBUG_r_TEST (0)
3888# define DEBUG_x_TEST (0)
3889# define DEBUG_u_TEST (0)
88d2d28a 3890# define DEBUG_U_TEST (0)
aea4f609
DM		 3891# define DEBUG_X_TEST (0)
3892# define DEBUG_D_TEST (0)
56967202 3893# define DEBUG_S_TEST (0)
aea4f609 3894# define DEBUG_T_TEST (0)
04932ac8 3895# define DEBUG_R_TEST (0)
1045810a 3896# define DEBUG_J_TEST (0)
d6721266 3897# define DEBUG_v_TEST (0)
46187eeb 3898# define DEBUG_C_TEST (0)
ecae49c0
NC		 3899# define DEBUG_A_TEST (0)
3900# define DEBUG_q_TEST (0)
d7c0d282 3901# define DEBUG_M_TEST (0)
cc8773c0 3902# define DEBUG_B_TEST (0)
69014004 3903# define DEBUG_L_TEST (0)
e17bc05a 3904# define DEBUG_i_TEST (0)
7949c6f5
JC		 3905# define DEBUG_Xv_TEST (0)
3906# define DEBUG_Uv_TEST (0)
ad9e76a8 3907# define DEBUG_Pv_TEST (0)
bbc98134 3908# define DEBUG_Lv_TEST (0)
aea4f609 3909
488b0c7a 3910# define PERL_DEB(a)
11f9ab1a 3911# define PERL_DEB2(a,b) b
488b0c7a 3912# define PERL_DEBUG(a)
aea4f609
DM		 3913# define DEBUG_p(a)
3914# define DEBUG_s(a)
3915# define DEBUG_l(a)
3916# define DEBUG_t(a)
3917# define DEBUG_o(a)
3918# define DEBUG_c(a)
3919# define DEBUG_P(a)
3920# define DEBUG_m(a)
3921# define DEBUG_f(a)
3922# define DEBUG_r(a)
3923# define DEBUG_x(a)
3924# define DEBUG_u(a)
88d2d28a 3925# define DEBUG_U(a)
aea4f609
DM		 3926# define DEBUG_X(a)
3927# define DEBUG_D(a)
56967202 3928# define DEBUG_S(a)
aea4f609 3929# define DEBUG_T(a)
04932ac8 3930# define DEBUG_R(a)
d6721266 3931# define DEBUG_v(a)
46187eeb 3932# define DEBUG_C(a)
ecae49c0
NC		 3933# define DEBUG_A(a)
3934# define DEBUG_q(a)
d7c0d282 3935# define DEBUG_M(a)
cc8773c0 3936# define DEBUG_B(a)
69014004 3937# define DEBUG_L(a)
e17bc05a 3938# define DEBUG_i(a)
7949c6f5
JC		 3939# define DEBUG_Xv(a)
3940# define DEBUG_Uv(a)
ad9e76a8 3941# define DEBUG_Pv(a)
bbc98134 3942# define DEBUG_Lv(a)
aea4f609
DM		 3943#endif /* DEBUGGING */
3944
3945
b4ab917c 3946#define DEBUG_SCOPE(where) \
d9f81b50 3947 DEBUG_l( \
1c98cc53
DM		 3948 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
3949 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
d9f81b50 3950 __FILE__, __LINE__));
b4ab917c 3951
de84dc04 3952/* Keep the old croak based assert for those who want it, and as a fallback if
27ceb597 3953 the platform is so heretically non-ANSI that it can't assert. */
14befaf4 3954
11f9ab1a 3955#define Perl_assert(what) PERL_DEB2( \
2b057284 3956 ((what) ? ((void) 0) : \
67eb4d30 3957 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
60b9f5a7 3958 "\", line %d", STRINGIFY(what), __LINE__), \
11f9ab1a 3959 (void) 0)), ((void)0))
de84dc04 3960
6ff2ec7d 3961/* assert() gets defined if DEBUGGING.
81d52ecd 3962 * If no DEBUGGING, the <assert.h> has not been included. */
de84dc04
NC		 3963#ifndef assert
3964# define assert(what) Perl_assert(what)
a446a88f 3965#endif
c7724415
FC		 3966#ifdef DEBUGGING
3967# define assert_(what) assert(what),
3968#else
3969# define assert_(what)
3970#endif
8d063cd8 3971
450a55e4 3972struct ufuncs {
24f81a43
DM		 3973 I32 (*uf_val)(pTHX_ IV, SV*);
3974 I32 (*uf_set)(pTHX_ IV, SV*);
a0d0e21e 3975 IV uf_index;
450a55e4
LW		 3976};
3977
14befaf4 3978/* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
24f81a43
DM		 3979 * XS code wanting to be backward compatible can do something
3980 * like the following:
c745e42c 3981
24f81a43 3982#ifndef PERL_MG_UFUNC
24f81a43
DM		 3983#define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
3984#endif
3985
3986static PERL_MG_UFUNC(foo_get, index, val)
3987{
3988 sv_setsv(val, ...);
3989 return TRUE;
3990}
3991
3992-- Doug MacEachern
3993
3994*/
3995
fc9c74e6 3996#ifndef PERL_MG_UFUNC
24f81a43 3997#define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
fc9c74e6 3998#endif
24f81a43 3999
7e034659
AC		 4000#include <math.h>
4001#ifdef __VMS
a80f53e7 4002 /* isfinite and others are here rather than in math.h as C99 stipulates */
7e034659 4003# include <fp.h>
79072805
LW		 4004#endif
4005
a0d0e21e 4006#ifndef __cplusplus
f05550c0 4007# if !defined(WIN32) && !defined(VMS)
10bc17b6 4008#ifndef crypt
20ce7b12 4009char *crypt (const char*, const char*);
10bc17b6 4010#endif
f05550c0 4011# endif /* !WIN32 */
e37d7e38
SH		 4012# ifndef WIN32
4013# ifndef getlogin
20ce7b12 4014char *getlogin (void);
e37d7e38
SH		 4015# endif
4016# endif /* !WIN32 */
26618a56 4017#endif /* !__cplusplus */
79072805 4018
7a7fd8e0
JM		 4019/* Fixme on VMS. This needs to be a run-time, not build time options */
4020/* Also rename() is affected by this */
16d20bd9 4021#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 4022#define UNLINK unlnk
083639a9 4023I32 unlnk (pTHX_ const char*);
8d063cd8 4024#else
80252599 4025#define UNLINK PerlLIO_unlink
8d063cd8 4026#endif
a687059c 4027
fa0a29af
JH		 4028/* some versions of glibc are missing the setresuid() proto */
4029#if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
640374d0
JH		 4030int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4031#endif
fa0a29af
JH		 4032/* some versions of glibc are missing the setresgid() proto */
4033#if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
640374d0
JH		 4034int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4035#endif
4036
fe14fcc3 4037#ifndef HAS_SETREUID
85e6fe83
LW		 4038# ifdef HAS_SETRESUID
4039# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4040# define HAS_SETREUID
4041# endif
a687059c 4042#endif
fe14fcc3 4043#ifndef HAS_SETREGID
85e6fe83
LW		 4044# ifdef HAS_SETRESGID
4045# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4046# define HAS_SETREGID
4047# endif
a687059c 4048#endif
ee0007ab 4049
d543acb6 4050/* Sighandler_t defined in iperlsys.h */
ff68c719 4051
4052#ifdef HAS_SIGACTION
4053typedef struct sigaction Sigsave_t;
4054#else
4055typedef Sighandler_t Sigsave_t;
4056#endif
4057
ee0007ab
LW		 4058#define SCAN_DEF 0
4059#define SCAN_TR 1
4060#define SCAN_REPL 2
79072805
LW		 4061
4062#ifdef DEBUGGING
4633a7c4 4063# ifndef register
a0d0e21e
LW		 4064# define register
4065# endif
cea2e8a9 4066# define RUNOPS_DEFAULT Perl_runops_debug
79072805 4067#else
cea2e8a9 4068# define RUNOPS_DEFAULT Perl_runops_standard
79072805
LW		 4069#endif
4070
97cb92d6 4071#if defined(USE_PERLIO)
0934c9d9 4072EXTERN_C void PerlIO_teardown(void);
2f44961c 4073# ifdef USE_ITHREADS
6cb8cb21
RGS		 4074# define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4075# define PERLIO_TERM \
4076 STMT_START { \
d0820ef1 4077 PerlIO_teardown(); \
6cb8cb21
RGS		 4078 MUTEX_DESTROY(&PL_perlio_mutex);\
4079 } STMT_END
4080# else
4081# define PERLIO_INIT
d0820ef1 4082# define PERLIO_TERM PerlIO_teardown()
6cb8cb21 4083# endif
6b29934b
NC		 4084#else
4085# define PERLIO_INIT
4086# define PERLIO_TERM
6cb8cb21
RGS		 4087#endif
4088
18f739ee 4089#ifdef MYMALLOC
772fe5b3 4090# ifdef MUTEX_INIT_CALLS_MALLOC
3541dd58
HM		 4091# define MALLOC_INIT \
4092 STMT_START { \
4093 PL_malloc_mutex = NULL; \
4094 MUTEX_INIT(&PL_malloc_mutex); \
4095 } STMT_END
4096# define MALLOC_TERM \
4097 STMT_START { \
4098 perl_mutex tmp = PL_malloc_mutex; \
4099 PL_malloc_mutex = NULL; \
4100 MUTEX_DESTROY(&tmp); \
4101 } STMT_END
4102# else
4103# define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4104# define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4105# endif
18f739ee
IZ		 4106#else
4107# define MALLOC_INIT
4108# define MALLOC_TERM
4109#endif
4110
cd1541b2 4111#if defined(PERL_IMPLICIT_CONTEXT)
7cb608b5
NC		 4112
4113struct perl_memory_debug_header;
cd1541b2
NC		 4114struct perl_memory_debug_header {
4115 tTHX interpreter;
b001a0d1 4116# if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
cd1541b2 4117 MEM_SIZE size;
cd1541b2 4118# endif
7cb608b5
NC		 4119 struct perl_memory_debug_header *prev;
4120 struct perl_memory_debug_header *next;
b001a0d1
FC		 4121# ifdef PERL_DEBUG_READONLY_COW
4122 bool readonly;
4123# endif
4124};
4125
4126#elif defined(PERL_DEBUG_READONLY_COW)
4127
4128struct perl_memory_debug_header;
4129struct perl_memory_debug_header {
4130 MEM_SIZE size;
cd1541b2
NC		 4131};
4132
b001a0d1
FC		 4133#endif
4134
60175f94 4135#if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
b001a0d1 4136
a78adc84
DM		 4137# define PERL_MEMORY_DEBUG_HEADER_SIZE \
4138 (sizeof(struct perl_memory_debug_header) + \
cd1541b2
NC		 4139 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4140 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4141
d8fca402 4142#else
a78adc84 4143# define PERL_MEMORY_DEBUG_HEADER_SIZE 0
cd1541b2
NC		 4144#endif
4145
7cb608b5 4146#ifdef PERL_TRACK_MEMPOOL
b001a0d1 4147# ifdef PERL_DEBUG_READONLY_COW
7cb608b5
NC		 4148# define INIT_TRACK_MEMPOOL(header, interp) \
4149 STMT_START { \
4150 (header).interpreter = (interp); \
4151 (header).prev = (header).next = &(header); \
b001a0d1 4152 (header).readonly = 0; \
7cb608b5 4153 } STMT_END
b001a0d1
FC		 4154# else
4155# define INIT_TRACK_MEMPOOL(header, interp) \
4156 STMT_START { \
4157 (header).interpreter = (interp); \
4158 (header).prev = (header).next = &(header); \
4159 } STMT_END
4160# endif
4161# else
7cb608b5
NC		 4162# define INIT_TRACK_MEMPOOL(header, interp)
4163#endif
4164
1cd66f7c
DD		 4165#ifdef I_MALLOCMALLOC
4166/* Needed for malloc_size(), malloc_good_size() on some systems */
4167# include <malloc/malloc.h>
4168#endif
4169
ca7c1a29
NC		 4170#ifdef MYMALLOC
4171# define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
cfe52898 4172#else
b001a0d1 4173# if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
e82be400 4174# ifdef PERL_TRACK_MEMPOOL
cfe52898 4175# define Perl_safesysmalloc_size(where) \
a78adc84 4176 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4177# else
4178# define Perl_safesysmalloc_size(where) malloc_size(where)
4179# endif
4180# endif
4181# ifdef HAS_MALLOC_GOOD_SIZE
4182# ifdef PERL_TRACK_MEMPOOL
d8fca402 4183# define Perl_malloc_good_size(how_much) \
a78adc84 4184 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4185# else
4186# define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4187# endif
4188# else
d8fca402
NC		 4189/* Having this as the identity operation makes some code simpler. */
4190# define Perl_malloc_good_size(how_much) (how_much)
e82be400 4191# endif
ca7c1a29 4192#endif
b6d9d515 4193
16c91539
BM		 4194typedef int (*runops_proc_t)(pTHX);
4195typedef void (*share_proc_t) (pTHX_ SV *sv);
4196typedef int (*thrhook_proc_t) (pTHX);
4197typedef OP* (*PPADDR_t[]) (pTHX);
4198typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4199typedef void (*despatch_signals_proc_t) (pTHX);
22c35a8c 4200
f05550c0
BF		 4201#if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4202# include <crt_externs.h> /* for the env array */
4203# define environ (*_NSGetEnviron())
a54aca4b 4204#elif defined(USE_ENVIRON_ARRAY) && !defined(environ)
8f1f23e8 4205 /* VMS and some other platforms don't use the environ array */
a54aca4b 4206EXTERN_C char **environ; /* environment variables supplied via exec */
8f1f23e8 4207#endif
79072805 4208
457c5385
NC		 4209#define PERL_PATCHLEVEL_H_IMPLICIT
4210#include "patchlevel.h"
4211#undef PERL_PATCHLEVEL_H_IMPLICIT
4212
4213#define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4214 STRINGIFY(PERL_VERSION) "." \
4215 STRINGIFY(PERL_SUBVERSION)
4216
4217#define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4218 STRINGIFY(PERL_API_VERSION) "." \
4219 STRINGIFY(PERL_API_SUBVERSION)
4220
73c4f7a1
GS		 4221START_EXTERN_C
4222
79072805 4223/* handy constants */
22c35a8c 4224EXTCONST char PL_warn_uninit[]
29489e7c 4225 INIT("Use of uninitialized value%s%s%s");
fef7e7a0 4226EXTCONST char PL_warn_uninit_sv[]
61608bb7 4227 INIT("Use of uninitialized value%" SVf "%s%s");
22c35a8c 4228EXTCONST char PL_warn_nosemi[]
463ee0b2 4229 INIT("Semicolon seems to be missing");
22c35a8c 4230EXTCONST char PL_warn_reserved[]
463ee0b2 4231 INIT("Unquoted string \"%s\" may clash with future reserved word");
22c35a8c 4232EXTCONST char PL_warn_nl[]
93a17b20 4233 INIT("Unsuccessful %s on filename containing newline");
22c35a8c 4234EXTCONST char PL_no_wrongref[]
a0d0e21e 4235 INIT("Can't use %s ref as %s ref");
fedf30e1 4236/* The core no longer needs this here. If you require the string constant,
def89bff 4237 please inline a copy into your own code. */
973a7615
NC		 4238EXTCONST char PL_no_symref[] __attribute__deprecated__
4239 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
fedf30e1
DM		 4240EXTCONST char PL_no_symref_sv[]
4241 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4242
22c35a8c 4243EXTCONST char PL_no_usym[]
8990e307 4244 INIT("Can't use an undefined value as %s reference");
22c35a8c 4245EXTCONST char PL_no_aelem[]
93a17b20 4246 INIT("Modification of non-creatable array value attempted, subscript %d");
ce5030a2 4247EXTCONST char PL_no_helem_sv[]
61608bb7 4248 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
22c35a8c 4249EXTCONST char PL_no_modify[]
93a17b20 4250 INIT("Modification of a read-only value attempted");
4cbe3a7d 4251EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
93a17b20 4252 INIT("Out of memory!\n");
22c35a8c 4253EXTCONST char PL_no_security[]
463ee0b2 4254 INIT("Insecure dependency in %s%s");
22c35a8c 4255EXTCONST char PL_no_sock_func[]
93a17b20 4256 INIT("Unsupported socket function \"%s\" called");
22c35a8c 4257EXTCONST char PL_no_dir_func[]
93a17b20 4258 INIT("Unsupported directory function \"%s\" called");
22c35a8c 4259EXTCONST char PL_no_func[]
93a17b20 4260 INIT("The %s function is unimplemented");
22c35a8c 4261EXTCONST char PL_no_myglob[]
a21eb52b 4262 INIT("\"%s\" %se %s can't be in a package");
82d03984
RGS		 4263EXTCONST char PL_no_localize_ref[]
4264 INIT("Can't localize through a reference");
27d5b266
JH		 4265EXTCONST char PL_memory_wrap[]
4266 INIT("panic: memory wrap");
93a17b20 4267
58f645e2
NC		 4268EXTCONST char PL_Yes[]
4269 INIT("1");
4270EXTCONST char PL_No[]
4271 INIT("");
5a6c2837
DM		 4272EXTCONST char PL_Zero[]
4273 INIT("0");
58f645e2
NC		 4274EXTCONST char PL_hexdigit[]
4275 INIT("0123456789abcdef0123456789ABCDEF");
4276
0447859b
NC		 4277/* This is constant on most architectures, a global on OS/2 */
4278#ifndef OS2
4279EXTCONST char PL_sh_path[]
4280 INIT(SH_PATH); /* full path of shell */
4281#endif
4282
618b9757
NC		 4283#ifdef CSH
4284EXTCONST char PL_cshname[]
4285 INIT(CSH);
4286# define PL_cshlen (sizeof(CSH "") - 1)
4287#endif
4288
457c5385
NC		 4289/* These are baked at compile time into any shared perl library.
4290 In future releases this will allow us in main() to sanity test the
4291 library we're linking against. */
4292
4293EXTCONST U8 PL_revision
4294 INIT(PERL_REVISION);
4295EXTCONST U8 PL_version
4296 INIT(PERL_VERSION);
4297EXTCONST U8 PL_subversion
4298 INIT(PERL_SUBVERSION);
4299
7575fa06 4300EXTCONST char PL_uuemap[65]
80252599
GS		 4301 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4302
7bfe3bfd
DM		 4303/* a special string address whose value is "isa", but which perl knows
4304 * to treat as if it were really "DOES" when printing the method name in
4305 * the "Can't call method '%s'" error message */
4306EXTCONST char PL_isa_DOES[]
4307 INIT("isa");
4308
79072805 4309#ifdef DOINIT
9444d213 4310EXTCONST char PL_uudmap[256] =
dde5ec2c
NC		 4311# ifdef PERL_MICRO
4312# include "uuudmap.h"
4313# else
4314# include "uudmap.h"
4315# endif
9444d213 4316;
efa50c51 4317EXTCONST char PL_bitcount[256] =
dde5ec2c
NC		 4318# ifdef PERL_MICRO
4319# include "ubitcount.h"
4320#else
4321# include "bitcount.h"
4322# endif
efa50c51 4323;
27da23d5
JH		 4324EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4325EXTCONST int PL_sig_num[] = { SIG_NUM };
79072805 4326#else
9444d213 4327EXTCONST char PL_uudmap[256];
efa50c51 4328EXTCONST char PL_bitcount[256];
27da23d5
JH		 4329EXTCONST char* const PL_sig_name[];
4330EXTCONST int PL_sig_num[];
79072805
LW		 4331#endif
4332
6d8e7a01
KW		 4333/* fast conversion and case folding tables. The folding tables complement the
4334 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4335 * folds such as outside the range or to multiple characters. */
bbce6d69 4336
79072805 4337#ifdef DOINIT
d02f4dad
KW		 4338#ifndef EBCDIC
4339
4340/* The EBCDIC fold table depends on the code page, and hence is found in
4341 * utfebcdic.h */
4342
22c35a8c 4343EXTCONST unsigned char PL_fold[] = {
79072805
LW		 4344 0, 1, 2, 3, 4, 5, 6, 7,
4345 8, 9, 10, 11, 12, 13, 14, 15,
4346 16, 17, 18, 19, 20, 21, 22, 23,
4347 24, 25, 26, 27, 28, 29, 30, 31,
4348 32, 33, 34, 35, 36, 37, 38, 39,
4349 40, 41, 42, 43, 44, 45, 46, 47,
4350 48, 49, 50, 51, 52, 53, 54, 55,
4351 56, 57, 58, 59, 60, 61, 62, 63,
4352 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4353 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4354 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4355 'x', 'y', 'z', 91, 92, 93, 94, 95,
4356 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4357 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4358 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4359 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4360 128, 129, 130, 131, 132, 133, 134, 135,
4361 136, 137, 138, 139, 140, 141, 142, 143,
4362 144, 145, 146, 147, 148, 149, 150, 151,
4363 152, 153, 154, 155, 156, 157, 158, 159,
4364 160, 161, 162, 163, 164, 165, 166, 167,
4365 168, 169, 170, 171, 172, 173, 174, 175,
4366 176, 177, 178, 179, 180, 181, 182, 183,
4367 184, 185, 186, 187, 188, 189, 190, 191,
4368 192, 193, 194, 195, 196, 197, 198, 199,
4369 200, 201, 202, 203, 204, 205, 206, 207,
4370 208, 209, 210, 211, 212, 213, 214, 215,
4371 216, 217, 218, 219, 220, 221, 222, 223,
4372 224, 225, 226, 227, 228, 229, 230, 231,
4373 232, 233, 234, 235, 236, 237, 238, 239,
4374 240, 241, 242, 243, 244, 245, 246, 247,
4375 248, 249, 250, 251, 252, 253, 254, 255
4376};
3871f40b
KW		 4377EXTCONST unsigned char PL_fold_latin1[] = {
4378 /* Full latin1 complement folding, except for three problematic code points:
4379 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4380 * fold complements outside the Latin1 range, so can't match something
4381 * that isn't in utf8.
4382 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4383 * not one, so can't be represented in this table.
4384 *
4385 * All have to be specially handled */
4386 0, 1, 2, 3, 4, 5, 6, 7,
4387 8, 9, 10, 11, 12, 13, 14, 15,
4388 16, 17, 18, 19, 20, 21, 22, 23,
4389 24, 25, 26, 27, 28, 29, 30, 31,
4390 32, 33, 34, 35, 36, 37, 38, 39,
4391 40, 41, 42, 43, 44, 45, 46, 47,
4392 48, 49, 50, 51, 52, 53, 54, 55,
4393 56, 57, 58, 59, 60, 61, 62, 63,
4394 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4395 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4396 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4397 'x', 'y', 'z', 91, 92, 93, 94, 95,
4398 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4399 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4400 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4401 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4402 128, 129, 130, 131, 132, 133, 134, 135,
4403 136, 137, 138, 139, 140, 141, 142, 143,
4404 144, 145, 146, 147, 148, 149, 150, 151,
4405 152, 153, 154, 155, 156, 157, 158, 159,
4406 160, 161, 162, 163, 164, 165, 166, 167,
4407 168, 169, 170, 171, 172, 173, 174, 175,
4408 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4409 184, 185, 186, 187, 188, 189, 190, 191,
4410 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4411 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4412 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4413 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4414 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4415 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4416 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4417 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4418 255 /* y with diaeresis */
4419};
00f254e2
KW		 4420
4421/* If these tables are accessed through ebcdic, the access will be converted to
4422 * latin1 first */
4423EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4424 0, 1, 2, 3, 4, 5, 6, 7,
4425 8, 9, 10, 11, 12, 13, 14, 15,
4426 16, 17, 18, 19, 20, 21, 22, 23,
4427 24, 25, 26, 27, 28, 29, 30, 31,
4428 32, 33, 34, 35, 36, 37, 38, 39,
4429 40, 41, 42, 43, 44, 45, 46, 47,
4430 48, 49, 50, 51, 52, 53, 54, 55,
4431 56, 57, 58, 59, 60, 61, 62, 63,
4432 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4433 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4434 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4435 'x', 'y', 'z', 91, 92, 93, 94, 95,
4436 96, 97, 98, 99, 100, 101, 102, 103,
4437 104, 105, 106, 107, 108, 109, 110, 111,
4438 112, 113, 114, 115, 116, 117, 118, 119,
4439 120, 121, 122, 123, 124, 125, 126, 127,
4440 128, 129, 130, 131, 132, 133, 134, 135,
4441 136, 137, 138, 139, 140, 141, 142, 143,
4442 144, 145, 146, 147, 148, 149, 150, 151,
4443 152, 153, 154, 155, 156, 157, 158, 159,
4444 160, 161, 162, 163, 164, 165, 166, 167,
4445 168, 169, 170, 171, 172, 173, 174, 175,
4446 176, 177, 178, 179, 180, 181, 182, 183,
4447 184, 185, 186, 187, 188, 189, 190, 191,
4448 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4449 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4450 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4451 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4452 224, 225, 226, 227, 228, 229, 230, 231,
4453 232, 233, 234, 235, 236, 237, 238, 239,
4454 240, 241, 242, 243, 244, 245, 246, 247,
4455 248, 249, 250, 251, 252, 253, 254, 255
4456};
4457
4458/* upper and title case of latin1 characters, modified so that the three tricky
4459 * ones are mapped to 255 (which is one of the three) */
4460EXTCONST unsigned char PL_mod_latin1_uc[] = {
4461 0, 1, 2, 3, 4, 5, 6, 7,
4462 8, 9, 10, 11, 12, 13, 14, 15,
4463 16, 17, 18, 19, 20, 21, 22, 23,
4464 24, 25, 26, 27, 28, 29, 30, 31,
4465 32, 33, 34, 35, 36, 37, 38, 39,
4466 40, 41, 42, 43, 44, 45, 46, 47,
4467 48, 49, 50, 51, 52, 53, 54, 55,
4468 56, 57, 58, 59, 60, 61, 62, 63,
4469 64, 65, 66, 67, 68, 69, 70, 71,
4470 72, 73, 74, 75, 76, 77, 78, 79,
4471 80, 81, 82, 83, 84, 85, 86, 87,
4472 88, 89, 90, 91, 92, 93, 94, 95,
4473 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4474 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4475 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4476 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4477 128, 129, 130, 131, 132, 133, 134, 135,
4478 136, 137, 138, 139, 140, 141, 142, 143,
4479 144, 145, 146, 147, 148, 149, 150, 151,
4480 152, 153, 154, 155, 156, 157, 158, 159,
4481 160, 161, 162, 163, 164, 165, 166, 167,
4482 168, 169, 170, 171, 172, 173, 174, 175,
4483 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4484 184, 185, 186, 187, 188, 189, 190, 191,
4485 192, 193, 194, 195, 196, 197, 198, 199,
4486 200, 201, 202, 203, 204, 205, 206, 207,
4487 208, 209, 210, 211, 212, 213, 214, 215,
79e064b9
KW		 4488 216, 217, 218, 219, 220, 221, 222,
4489#if UNICODE_MAJOR_VERSION > 2 \
4490 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4491 && UNICODE_DOT_DOT_VERSION >= 8)
4492 255 /*sharp s*/,
4493#else /* uc() is itself in early unicode */
4494 223,
4495#endif
00f254e2
KW		 4496 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4497 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4498 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4499 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4500};
1248eb9d 4501#endif /* !EBCDIC, but still in DOINIT */
00f254e2 4502#else /* ! DOINIT */
1248eb9d 4503# ifndef EBCDIC
22c35a8c 4504EXTCONST unsigned char PL_fold[];
3871f40b 4505EXTCONST unsigned char PL_fold_latin1[];
00f254e2
KW		 4506EXTCONST unsigned char PL_mod_latin1_uc[];
4507EXTCONST unsigned char PL_latin1_lc[];
1248eb9d 4508# endif
79072805
LW		 4509#endif
4510
27da23d5 4511#ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
79072805 4512#ifdef DOINIT
27da23d5 4513EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
79072805
LW		 4514 0, 1, 2, 3, 4, 5, 6, 7,
4515 8, 9, 10, 11, 12, 13, 14, 15,
4516 16, 17, 18, 19, 20, 21, 22, 23,
4517 24, 25, 26, 27, 28, 29, 30, 31,
4518 32, 33, 34, 35, 36, 37, 38, 39,
4519 40, 41, 42, 43, 44, 45, 46, 47,
4520 48, 49, 50, 51, 52, 53, 54, 55,
4521 56, 57, 58, 59, 60, 61, 62, 63,
4522 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4523 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4524 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4525 'x', 'y', 'z', 91, 92, 93, 94, 95,
4526 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4527 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4528 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4529 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4530 128, 129, 130, 131, 132, 133, 134, 135,
4531 136, 137, 138, 139, 140, 141, 142, 143,
4532 144, 145, 146, 147, 148, 149, 150, 151,
4533 152, 153, 154, 155, 156, 157, 158, 159,
4534 160, 161, 162, 163, 164, 165, 166, 167,
4535 168, 169, 170, 171, 172, 173, 174, 175,
4536 176, 177, 178, 179, 180, 181, 182, 183,
4537 184, 185, 186, 187, 188, 189, 190, 191,
4538 192, 193, 194, 195, 196, 197, 198, 199,
4539 200, 201, 202, 203, 204, 205, 206, 207,
4540 208, 209, 210, 211, 212, 213, 214, 215,
4541 216, 217, 218, 219, 220, 221, 222, 223,
4542 224, 225, 226, 227, 228, 229, 230, 231,
4543 232, 233, 234, 235, 236, 237, 238, 239,
4544 240, 241, 242, 243, 244, 245, 246, 247,
4545 248, 249, 250, 251, 252, 253, 254, 255
4546};
4547#else
27da23d5 4548EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
79072805 4549#endif
27da23d5 4550#endif /* !PERL_GLOBAL_STRUCT */
79072805
LW		 4551
4552#ifdef DOINIT
9d116dd7 4553#ifdef EBCDIC
27da23d5 4554EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
9d116dd7
JH		 4555 1, 2, 84, 151, 154, 155, 156, 157,
4556 165, 246, 250, 3, 158, 7, 18, 29,
4557 40, 51, 62, 73, 85, 96, 107, 118,
4558 129, 140, 147, 148, 149, 150, 152, 153,
4559 255, 6, 8, 9, 10, 11, 12, 13,
4560 14, 15, 24, 25, 26, 27, 28, 226,
4561 29, 30, 31, 32, 33, 43, 44, 45,
4562 46, 47, 48, 49, 50, 76, 77, 78,
4563 79, 80, 81, 82, 83, 84, 85, 86,
4564 87, 94, 95, 234, 181, 233, 187, 190,
4565 180, 96, 97, 98, 99, 100, 101, 102,
4566 104, 112, 182, 174, 236, 232, 229, 103,
4567 228, 226, 114, 115, 116, 117, 118, 119,
4568 120, 121, 122, 235, 176, 230, 194, 162,
4569 130, 131, 132, 133, 134, 135, 136, 137,
4570 138, 139, 201, 205, 163, 217, 220, 224,
4571 5, 248, 227, 244, 242, 255, 241, 231,
4572 240, 253, 16, 197, 19, 20, 21, 187,
4573 23, 169, 210, 245, 237, 249, 247, 239,
4574 168, 252, 34, 196, 36, 37, 38, 39,
4575 41, 42, 251, 254, 238, 223, 221, 213,
4576 225, 177, 52, 53, 54, 55, 56, 57,
4577 58, 59, 60, 61, 63, 64, 65, 66,
4578 67, 68, 69, 70, 71, 72, 74, 75,
4579 205, 208, 186, 202, 200, 218, 198, 179,
4580 178, 214, 88, 89, 90, 91, 92, 93,
4581 217, 166, 170, 207, 199, 209, 206, 204,
4582 160, 212, 105, 106, 108, 109, 110, 111,
4583 203, 113, 216, 215, 192, 175, 193, 243,
4584 172, 161, 123, 124, 125, 126, 127, 128,
4585 222, 219, 211, 195, 188, 193, 185, 184,
4586 191, 183, 141, 142, 143, 144, 145, 146
4587};
4588#else /* ascii rather than ebcdic */
22c35a8c 4589EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 4590 1, 2, 84, 151, 154, 155, 156, 157,
4591 165, 246, 250, 3, 158, 7, 18, 29,
4592 40, 51, 62, 73, 85, 96, 107, 118,
4593 129, 140, 147, 148, 149, 150, 152, 153,
4594 255, 182, 224, 205, 174, 176, 180, 217,
4595 233, 232, 236, 187, 235, 228, 234, 226,
4596 222, 219, 211, 195, 188, 193, 185, 184,
4597 191, 183, 201, 229, 181, 220, 194, 162,
4598 163, 208, 186, 202, 200, 218, 198, 179,
4599 178, 214, 166, 170, 207, 199, 209, 206,
4600 204, 160, 212, 216, 215, 192, 175, 173,
4601 243, 172, 161, 190, 203, 189, 164, 230,
4602 167, 248, 227, 244, 242, 255, 241, 231,
4603 240, 253, 169, 210, 245, 237, 249, 247,
4604 239, 168, 252, 251, 254, 238, 223, 221,
4605 213, 225, 177, 197, 171, 196, 159, 4,
4606 5, 6, 8, 9, 10, 11, 12, 13,
4607 14, 15, 16, 17, 19, 20, 21, 22,
4608 23, 24, 25, 26, 27, 28, 30, 31,
4609 32, 33, 34, 35, 36, 37, 38, 39,
4610 41, 42, 43, 44, 45, 46, 47, 48,
4611 49, 50, 52, 53, 54, 55, 56, 57,
4612 58, 59, 60, 61, 63, 64, 65, 66,
4613 67, 68, 69, 70, 71, 72, 74, 75,
4614 76, 77, 78, 79, 80, 81, 82, 83,
4615 86, 87, 88, 89, 90, 91, 92, 93,
4616 94, 95, 97, 98, 99, 100, 101, 102,
4617 103, 104, 105, 106, 108, 109, 110, 111,
4618 112, 113, 114, 115, 116, 117, 119, 120,
4619 121, 122, 123, 124, 125, 126, 127, 128,
4620 130, 131, 132, 133, 134, 135, 136, 137,
4621 138, 139, 141, 142, 143, 144, 145, 146
4622};
9d116dd7 4623#endif
79072805 4624#else
22c35a8c 4625EXTCONST unsigned char PL_freq[];
79072805
LW		 4626#endif
4627
b0812ba3
DM		 4628/* Although only used for debugging, these constants must be available in
4629 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4630 * which has DEBUGGING enabled always */
8990e307 4631#ifdef DOINIT
27da23d5 4632EXTCONST char* const PL_block_type[] = {
8990e307 4633 "NULL",
d01136d6 4634 "WHEN",
8990e307 4635 "BLOCK",
0d863452 4636 "GIVEN",
1611176f 4637 "LOOP_ARY",
93661e56 4638 "LOOP_LAZYSV",
1611176f 4639 "LOOP_LAZYIV",
93661e56 4640 "LOOP_LIST",
1611176f 4641 "LOOP_PLAIN",
76753e7f
NC		 4642 "SUB",
4643 "FORMAT",
4644 "EVAL",
4645 "SUBST"
8990e307
LW		 4646};
4647#else
22c35a8c 4648EXTCONST char* PL_block_type[];
8990e307 4649#endif
8990e307 4650
b75885fd
NC		 4651/* These are all the compile time options that affect binary compatibility.
4652 Other compile time options that are binary compatible are in perl.c
e23397c2 4653 (in S_Internals_V()). Both are combined for the output of perl -V
b75885fd
NC		 4654 However, this string will be embedded in any shared perl library, which will
4655 allow us add a comparison check in perlmain.c in the near future. */
4656#ifdef DOINIT
4657EXTCONST char PL_bincompat_options[] =
4658# ifdef DEBUG_LEAKING_SCALARS
4659 " DEBUG_LEAKING_SCALARS"
4660# endif
4661# ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4662 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4663# endif
eba804b9
NC		 4664# ifdef FCRYPT
4665 " FCRYPT"
4666# endif
4667# ifdef HAS_TIMES
4668 " HAS_TIMES"
4669# endif
4670# ifdef HAVE_INTERP_INTERN
426f6eb2 4671 " HAVE_INTERP_INTERN"
eba804b9 4672# endif
b75885fd
NC		 4673# ifdef MULTIPLICITY
4674 " MULTIPLICITY"
4675# endif
4676# ifdef MYMALLOC
4677 " MYMALLOC"
4678# endif
eba804b9
NC		 4679# ifdef PERLIO_LAYERS
4680 " PERLIO_LAYERS"
4681# endif
cb26ef7a
MB		 4682# ifdef PERL_DEBUG_READONLY_COW
4683 " PERL_DEBUG_READONLY_COW"
4684# endif
b75885fd
NC		 4685# ifdef PERL_DEBUG_READONLY_OPS
4686 " PERL_DEBUG_READONLY_OPS"
4687# endif
4688# ifdef PERL_GLOBAL_STRUCT
4689 " PERL_GLOBAL_STRUCT"
4690# endif
59dba841
JH		 4691# ifdef PERL_GLOBAL_STRUCT_PRIVATE
4692 " PERL_GLOBAL_STRUCT_PRIVATE"
4693# endif
b75885fd
NC		 4694# ifdef PERL_IMPLICIT_CONTEXT
4695 " PERL_IMPLICIT_CONTEXT"
4696# endif
4697# ifdef PERL_IMPLICIT_SYS
4698 " PERL_IMPLICIT_SYS"
4699# endif
eba804b9
NC		 4700# ifdef PERL_MICRO
4701 " PERL_MICRO"
4702# endif
b75885fd
NC		 4703# ifdef PERL_NEED_APPCTX
4704 " PERL_NEED_APPCTX"
4705# endif
4706# ifdef PERL_NEED_TIMESBASE
4707 " PERL_NEED_TIMESBASE"
4708# endif
b75885fd
NC		 4709# ifdef PERL_POISON
4710 " PERL_POISON"
4711# endif
5b50f57e
FC		 4712# ifdef PERL_SAWAMPERSAND
4713 " PERL_SAWAMPERSAND"
4714# endif
b75885fd
NC		 4715# ifdef PERL_TRACK_MEMPOOL
4716 " PERL_TRACK_MEMPOOL"
4717# endif
4718# ifdef PERL_USES_PL_PIDSTATUS
4719 " PERL_USES_PL_PIDSTATUS"
4720# endif
b75885fd
NC		 4721# ifdef USE_64_BIT_ALL
4722 " USE_64_BIT_ALL"
4723# endif
4724# ifdef USE_64_BIT_INT
4725 " USE_64_BIT_INT"
4726# endif
c7b392fa
NC		 4727# ifdef USE_IEEE
4728 " USE_IEEE"
4729# endif
b75885fd
NC		 4730# ifdef USE_ITHREADS
4731 " USE_ITHREADS"
4732# endif
4733# ifdef USE_LARGE_FILES
4734 " USE_LARGE_FILES"
4735# endif
eba804b9
NC		 4736# ifdef USE_LOCALE_COLLATE
4737 " USE_LOCALE_COLLATE"
4738# endif
4739# ifdef USE_LOCALE_NUMERIC
4740 " USE_LOCALE_NUMERIC"
4741# endif
56e45410
KW		 4742# ifdef USE_LOCALE_TIME
4743 " USE_LOCALE_TIME"
4744# endif
b75885fd
NC		 4745# ifdef USE_LONG_DOUBLE
4746 " USE_LONG_DOUBLE"
4747# endif
4748# ifdef USE_PERLIO
4749 " USE_PERLIO"
4750# endif
05b4a618
JH		 4751# ifdef USE_QUADMATH
4752 " USE_QUADMATH"
4753# endif
b75885fd
NC		 4754# ifdef USE_REENTRANT_API
4755 " USE_REENTRANT_API"
4756# endif
b75885fd
NC		 4757# ifdef USE_SOCKS
4758 " USE_SOCKS"
4759# endif
4f575702
CB		 4760# ifdef VMS_DO_SOCKETS
4761 " VMS_DO_SOCKETS"
4f575702 4762# endif
e8b231c6
CB		 4763# ifdef VMS_SHORTEN_LONG_SYMBOLS
4764 " VMS_SHORTEN_LONG_SYMBOLS"
4765# endif
ad5e438d
NC		 4766# ifdef VMS_WE_ARE_CASE_SENSITIVE
4767 " VMS_SYMBOL_CASE_AS_IS"
4768# endif
a68dd89e 4769 "";
b75885fd
NC		 4770#else
4771EXTCONST char PL_bincompat_options[];
4772#endif
4773
ca7b837b
SM		 4774#ifndef PERL_SET_PHASE
4775# define PERL_SET_PHASE(new_phase) \
3f6bd23a 4776 PERL_DTRACE_PROBE_PHASE(new_phase); \
ca7b837b
SM		 4777 PL_phase = new_phase;
4778#endif
4779
9ebf26ad
FR		 4780/* The interpreter phases. If these ever change, PL_phase_names right below will
4781 * need to be updated accordingly. */
4782enum perl_phase {
4783 PERL_PHASE_CONSTRUCT = 0,
4784 PERL_PHASE_START = 1,
4785 PERL_PHASE_CHECK = 2,
4786 PERL_PHASE_INIT = 3,
4787 PERL_PHASE_RUN = 4,
4788 PERL_PHASE_END = 5,
4789 PERL_PHASE_DESTRUCT = 6
4790};
4791
4792#ifdef DOINIT
4793EXTCONST char *const PL_phase_names[] = {
4794 "CONSTRUCT",
4795 "START",
4796 "CHECK",
4797 "INIT",
4798 "RUN",
4799 "END",
4800 "DESTRUCT"
4801};
4802#else
4803EXTCONST char *const PL_phase_names[];
4804#endif
4805
627364f1
FR		 4806#ifndef PERL_CORE
4807/* Do not use this macro. It only exists for extensions that rely on PL_dirty
4808 * instead of using the newer PL_phase, which provides everything PL_dirty
4809 * provided, and more. */
9d990559 4810# define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT)
66978156
FC		 4811
4812# define PL_amagic_generation PL_na
8bfa1b58 4813# define PL_encoding ((SV *)NULL)
627364f1
FR		 4814#endif /* !PERL_CORE */
4815
823ac2c8 4816#define PL_hints PL_compiling.cop_hints
8d89205a 4817#define PL_maxo MAXO
823ac2c8 4818
73c4f7a1
GS		 4819END_EXTERN_C
4820
79072805
LW		 4821/*****************************************************************************/
4822/* This lexer/parser stuff is currently global since yacc is hard to reenter */
4823/*****************************************************************************/
8990e307 4824/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 4825
d4c3c482 4826#ifdef __Lynx__
9cffb111
OS		 4827/* LynxOS defines these in scsi.h which is included via ioctl.h */
4828#ifdef FORMAT
4829#undef FORMAT
4830#endif
4831#ifdef SPACE
4832#undef SPACE
4833#endif
d4c3c482 4834#endif
9cffb111 4835
fb73857a 4836#define LEX_NOTPARSING 11 /* borrowed from toke.c */
4837
79072805
LW		 4838typedef enum {
4839 XOPERATOR,
4840 XTERM,
79072805 4841 XREF,
8990e307 4842 XSTATE,
a0d0e21e 4843 XBLOCK,
09bef843
SB		 4844 XATTRBLOCK,
4845 XATTRTERM,
6f33ba73 4846 XTERMBLOCK,
b5b6210a 4847 XBLOCKTERM,
89f35911 4848 XPOSTDEREF,
6f33ba73 4849 XTERMORDORDOR /* evil hack */
27308ded 4850 /* update exp_name[] in toke.c if adding to this enum */
79072805
LW		 4851} expectation;
4852
49fb8620
DM		 4853#define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */
4854
d5ec2987
NC		 4855/* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
4856 special and there is no need for HINT_PRIVATE_MASK for COPs
538e84ed
KW		 4857 However, bitops store HINT_INTEGER in their op_private.
4858
4859 NOTE: The typical module using these has the bit value hard-coded, so don't
d6ded950
KW		 4860 blindly change the values of these.
4861
4862 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
4863 is for "use locale 'FOO'" which excludes some categories. It requires going
4864 to %^H to find out which are in and which are out. This could be extended
4865 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
4866 any locale form. */
9cfe5470
RGS		 4867#define HINT_INTEGER 0x00000001 /* integer pragma */
4868#define HINT_STRICT_REFS 0x00000002 /* strict pragma */
4869#define HINT_LOCALE 0x00000004 /* locale pragma */
4870#define HINT_BYTES 0x00000008 /* bytes pragma */
d6ded950 4871#define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
894ea76b
FC		 4872
4873#define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
4874#define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
4875#define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
85e6fe83
LW		 4876
4877#define HINT_BLOCK_SCOPE 0x00000100
9cfe5470
RGS		 4878#define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
4879#define HINT_STRICT_VARS 0x00000400 /* strict pragma */
1863b879 4880#define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
85e6fe83 4881
9cfe5470 4882/* The HINT_NEW_* constants are used by the overload pragma */
b3ac6de7
IZ		 4883#define HINT_NEW_INTEGER 0x00001000
4884#define HINT_NEW_FLOAT 0x00002000
4885#define HINT_NEW_BINARY 0x00004000
4886#define HINT_NEW_STRING 0x00008000
4887#define HINT_NEW_RE 0x00010000
4888#define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
8b850bd5
NC		 4889#define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
4890#define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
b3ac6de7 4891
9cfe5470
RGS		 4892#define HINT_RE_TAINT 0x00100000 /* re pragma */
4893#define HINT_RE_EVAL 0x00200000 /* re pragma */
b3eb6a9b 4894
9cfe5470
RGS		 4895#define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
4896#define HINT_UTF8 0x00800000 /* utf8 pragma */
5ff3f7a4 4897
e46c382e
YK		 4898#define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
4899
1e215989
FC		 4900#define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
4901
a803b9b4
FC		 4902#define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
4903
15da1ccf
FC		 4904 /* Note: Used for HINT_M_VMSISH_*,
4905 currently defined by vms/vmsish.h:
894ea76b
FC		 4906 0x40000000
4907 0x80000000
4908 */
d1718a7c 4909
0239f47c 4910/* The following are stored in $^H{sort}, not in PL_hints */
84d4ea48
JH		 4911#define HINT_SORT_SORT_BITS 0x000000FF /* allow 256 different ones */
4912#define HINT_SORT_QUICKSORT 0x00000001
4913#define HINT_SORT_MERGESORT 0x00000002
afe59f35
FC		 4914#define HINT_SORT_STABLE 0x00000100 /* sort styles */
4915#define HINT_SORT_UNSTABLE 0x00000200
84d4ea48 4916
d3b97530
DM		 4917/* flags for PL_sawampersand */
4918
4919#define SAWAMPERSAND_LEFT 1 /* saw $` */
4920#define SAWAMPERSAND_MIDDLE 2 /* saw $& */
4921#define SAWAMPERSAND_RIGHT 4 /* saw $' */
4922
1a904fc8
FC		 4923#ifndef PERL_SAWAMPERSAND
4924# define PL_sawampersand \
4925 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
4926#endif
4927
a6d69523
TC		 4928/* Used for debugvar magic */
4929#define DBVARMG_SINGLE 0
4930#define DBVARMG_TRACE 1
4931#define DBVARMG_SIGNAL 2
4932#define DBVARMG_COUNT 3
4933
4934#define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
4935#define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
4936#define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
4937
8bfdd7d9 4938/* Various states of the input record separator SV (rs) */
d4cce5f1 4939#define RsSNARF(sv) (! SvOK(sv))
af7d13df
MG		 4940#define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
4941#define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5b2b9c68 4942#define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
79072805 4943
128e8167 4944/* A struct for keeping various DEBUGGING related stuff,
ce333219 4945 * neatly packed. Currently only scratch variables for
128e8167
JH		 4946 * constructing debug output are included. Needed always,
4947 * not just when DEBUGGING, though, because of the re extension. c*/
ce333219
JH		 4948struct perl_debug_pad {
4949 SV pad[3];
4950};
4951
4952#define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
a5c57919
RGS		 4953#define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
4954 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
4955 PERL_DEBUG_PAD(i))
ce333219 4956
56953603 4957/* Enable variables which are pointers to functions */
16c91539
BM		 4958typedef void (*peep_t)(pTHX_ OP* o);
4959typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
4960typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
0cb96387
GS		 4961 char* strend, char* strbeg, I32 minend,
4962 SV* screamer, void* data, U32 flags);
16c91539 4963typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
f722798b
IZ		 4964 char *strpos, char *strend,
4965 U32 flags,
9f61653a 4966 re_scream_pos_data *d);
16c91539
BM		 4967typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
4968typedef void (*regfree_t) (pTHX_ struct regexp* r);
4969typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
a932d541 4970typedef I32 (*re_fold_t)(const char *, char const *, I32);
56953603 4971
c76ac1ee 4972typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
acfe0abc 4973typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
f30de749 4974typedef void (*SVFUNC_t) (pTHX_ SV* const);
31e9e0a3 4975typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
acfe0abc
GS		 4976typedef void (*XSINIT_t) (pTHX);
4977typedef void (*ATEXIT_t) (pTHX_ void*);
4978typedef void (*XSUBADDR_t) (pTHX_ CV *);
15e52e56 4979
16c91539
BM		 4980typedef OP* (*Perl_ppaddr_t)(pTHX);
4981typedef OP* (*Perl_check_t) (pTHX_ OP*);
4982typedef void(*Perl_ophook_t)(pTHX_ OP*);
4983typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
1830b3d9 4984typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
88e1f1a2 4985
d67594ff
FC		 4986typedef void(*globhook_t)(pTHX);
4987
88e1f1a2
JV		 4988#define KEYWORD_PLUGIN_DECLINE 0
4989#define KEYWORD_PLUGIN_STMT 1
4990#define KEYWORD_PLUGIN_EXPR 2
22239a37 4991
58a50f62
GS		 4992/* Interpreter exitlist entry */
4993typedef struct exitlistentry {
acfe0abc 4994 void (*fn) (pTHX_ void*);
58a50f62
GS		 4995 void *ptr;
4996} PerlExitListEntry;
4997
aadb217d
JH		 4998/* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
4999/* These have to be before perlvars.h */
5000#if !defined(HAS_SIGACTION) && defined(VMS)
5001# define FAKE_PERSISTENT_SIGNAL_HANDLERS
5002#endif
5003/* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5004#if defined(KILL_BY_SIGPRC)
5005# define FAKE_DEFAULT_SIGNAL_HANDLERS
5006#endif
5007
8c1cc017
NC		 5008#if !defined(MULTIPLICITY)
5009
5010struct interpreter {
5011 char broiled;
22239a37
NIS		 5012};
5013
8c1cc017 5014#else
22239a37 5015
d460ef45 5016/* If we have multiple interpreters define a struct
d4cce5f1 5017 holding variables which must be per-interpreter
d460ef45 5018 If we don't have threads anything that would have
d4cce5f1
NIS		 5019 be per-thread is per-interpreter.
5020*/
5021
8c1cc017 5022/* Set up PERLVAR macros for populating structs */
115ff745 5023# define PERLVAR(prefix,var,type) type prefix##var;
eb42f199
KW		 5024
5025/* 'var' is an array of length 'n' */
115ff745 5026# define PERLVARA(prefix,var,n,type) type prefix##var[n];
eb42f199
KW		 5027
5028/* initialize 'var' to init' */
115ff745 5029# define PERLVARI(prefix,var,type,init) type prefix##var;
eb42f199
KW		 5030
5031/* like PERLVARI, but make 'var' a const */
115ff745 5032# define PERLVARIC(prefix,var,type,init) type prefix##var;
8c1cc017 5033
79072805 5034struct interpreter {
7766f137 5035# include "intrpvar.h"
49f531da 5036};
d4cce5f1 5037
724cf8d6
NC		 5038EXTCONST U16 PL_interp_size
5039 INIT(sizeof(struct interpreter));
5040
5041# define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5042 STRUCT_OFFSET(struct interpreter, member) + \
5043 sizeof(((struct interpreter*)0)->member)
5044
5045/* This will be useful for subsequent releases, because this has to be the
5046 same in your libperl as in main(), else you have a mismatch and must abort.
5047*/
d399cf59
NC		 5048EXTCONST U16 PL_interp_size_5_18_0
5049 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
724cf8d6
NC		 5050
5051
8c1cc017
NC		 5052# ifdef PERL_GLOBAL_STRUCT
5053/* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5054 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5055
5056struct perl_vars {
5057# include "perlvars.h"
49f531da 5058};
8c1cc017 5059
724cf8d6
NC		 5060EXTCONST U16 PL_global_struct_size
5061 INIT(sizeof(struct perl_vars));
5062
8c1cc017
NC		 5063# ifdef PERL_CORE
5064# ifndef PERL_GLOBAL_STRUCT_PRIVATE
5065EXT struct perl_vars PL_Vars;
5066EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5067# undef PERL_GET_VARS
5068# define PERL_GET_VARS() PL_VarsPtr
5069# endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5070# else /* PERL_CORE */
5071# if !defined(__GNUC__) || !defined(WIN32)
5072EXT
5073# endif /* WIN32 */
5074struct perl_vars *PL_VarsPtr;
5075# define PL_Vars (*((PL_VarsPtr) \
5076 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5077# endif /* PERL_CORE */
5078# endif /* PERL_GLOBAL_STRUCT */
79072805 5079
22239a37 5080/* Done with PERLVAR macros for now ... */
8c1cc017
NC		 5081# undef PERLVAR
5082# undef PERLVARA
5083# undef PERLVARI
5084# undef PERLVARIC
8c1cc017
NC		 5085
5086#endif /* MULTIPLICITY */
79072805 5087
f7fe979e 5088struct tempsym; /* defined in pp_pack.c */
49704364 5089
22239a37 5090#include "thread.h"
79072805 5091#include "pp.h"
864dbfa3 5092
0cb96387
GS		 5093#undef PERL_CKDEF
5094#undef PERL_PPDEF
0159f81b
JH		 5095#define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5096#define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
0cb96387 5097
158cfab6
JD		 5098#ifdef MYMALLOC
5099# include "malloc_ctl.h"
5100#endif
5101
fc6bde6f
DD		 5102/*
5103 * This provides a layer of functions and macros to ensure extensions will
5104 * get to use the same RTL functions as the core.
5105 */
5106#if defined(WIN32)
5107# include "win32iop.h"
5108#endif
5109
839a9f02 5110
7766f137 5111#include "proto.h"
864dbfa3 5112
0cb96387 5113/* this has structure inits, so it cannot be included before here */
acfe0abc 5114#include "opcode.h"
864dbfa3 5115
d4cce5f1
NIS		 5116/* The following must follow proto.h as #defines mess up syntax */
5117
22c35a8c
GS		 5118#if !defined(PERL_FOR_X2P)
5119# include "embedvar.h"
5120#endif
d4cce5f1 5121
d460ef45 5122/* Now include all the 'global' variables
d4cce5f1 5123 * If we don't have threads or multiple interpreters
d460ef45 5124 * these include variables that would have been their struct-s
d4cce5f1 5125 */
d460ef45 5126
115ff745
NC		 5127#define PERLVAR(prefix,var,type) EXT type PL_##var;
5128#define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5129#define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5130#define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
d4cce5f1 5131
acfe0abc 5132#if !defined(MULTIPLICITY)
7766f137 5133START_EXTERN_C
066ef5b5 5134# include "intrpvar.h"
7766f137 5135END_EXTERN_C
7c123f9d
DM		 5136# define PL_sv_yes (PL_sv_immortals[0])
5137# define PL_sv_undef (PL_sv_immortals[1])
5138# define PL_sv_no (PL_sv_immortals[2])
5139# define PL_sv_zero (PL_sv_immortals[3])
22239a37
NIS		 5140#endif
5141
24792b8d
NC		 5142#ifdef PERL_CORE
5143/* All core uses now exterminated. Ensure no zombies can return: */
5144# undef PL_na
5145#endif
5146
f9293c5b
NC		 5147/* Now all the config stuff is setup we can include embed.h
5148 In particular, need the relevant *ish file included already, as it may
5149 define HAVE_INTERP_INTERN */
5150#include "embed.h"
22239a37 5151
c5be433b
GS		 5152#ifndef PERL_GLOBAL_STRUCT
5153START_EXTERN_C
5154
5155# include "perlvars.h"
5156
5157END_EXTERN_C
5158#endif
5159
d4cce5f1 5160#undef PERLVAR
51371543 5161#undef PERLVARA
d4cce5f1 5162#undef PERLVARI
0f3f18a6 5163#undef PERLVARIC
79072805 5164
db6e00bd
DD		 5165#if !defined(MULTIPLICITY)
5166/* Set up PERLVAR macros for populating structs */
5167# define PERLVAR(prefix,var,type) type prefix##var;
5168/* 'var' is an array of length 'n' */
5169# define PERLVARA(prefix,var,n,type) type prefix##var[n];
5170/* initialize 'var' to init' */
5171# define PERLVARI(prefix,var,type,init) type prefix##var;
5172/* like PERLVARI, but make 'var' a const */
5173# define PERLVARIC(prefix,var,type,init) type prefix##var;
5174
5175/* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5176struct PerlHandShakeInterpreter {
5177# include "intrpvar.h"
5178};
5179# undef PERLVAR
5180# undef PERLVARA
5181# undef PERLVARI
5182# undef PERLVARIC
5183#endif
5184
73c4f7a1
GS		 5185START_EXTERN_C
5186
af2f0da9
NC		 5187/* dummy variables that hold pointers to both runops functions, thus forcing
5188 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5189
5190EXTCONST runops_proc_t PL_runops_std
5191 INIT(Perl_runops_standard);
5192EXTCONST runops_proc_t PL_runops_dbg
5193 INIT(Perl_runops_debug);
5194
c910fead 5195#define EXT_MGVTBL EXTCONST MGVTBL
bc028b6b 5196
82ff486e 5197#define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
e0a73de4
NC		 5198#define PERL_MAGIC_VALUE_MAGIC 0x80
5199#define PERL_MAGIC_VTABLE_MASK 0x3F
82ff486e
NC		 5200#define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5201 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
e0a73de4
NC		 5202#define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5203 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5204
8b09643d 5205#include "mg_vtable.h"
6f83ef0e
NC		 5206
5207#ifdef DOINIT
5208EXTCONST U8 PL_magic_data[256] =
dde5ec2c
NC		 5209# ifdef PERL_MICRO
5210# include "umg_data.h"
5211# else
5212# include "mg_data.h"
5213# endif
6f83ef0e
NC		 5214;
5215#else
5216EXTCONST U8 PL_magic_data[256];
5217#endif
5218
f1fb8741 5219#ifdef DOINIT
e94d9b54 5220 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
f1fb8741 5221EXTCONST bool
e94d9b54 5222PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5223EXTCONST bool
e94d9b54 5224PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5225EXTCONST bool
df6b4bd5 5226PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 };
f1fb8741 5227EXTCONST bool
e94d9b54 5228PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
f1fb8741 5229EXTCONST bool
e94d9b54 5230PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
f1fb8741 5231EXTCONST bool
e94d9b54 5232PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741
DM		 5233
5234#else
5235
5236EXTCONST bool PL_valid_types_IVX[];
5237EXTCONST bool PL_valid_types_NVX[];
5238EXTCONST bool PL_valid_types_PVX[];
5239EXTCONST bool PL_valid_types_RV[];
5240EXTCONST bool PL_valid_types_IV_set[];
5241EXTCONST bool PL_valid_types_NV_set[];
5242
5243#endif
5244
9e76e8dd
JH		 5245/* In C99 we could use designated (named field) union initializers.
5246 * In C89 we need to initialize the member declared first.
0879cd66 5247 * In C++ we need extern C initializers.
9e76e8dd
JH		 5248 *
5249 * With the U8_NV version you will want to have inner braces,
9ee3aea9 5250 * while with the NV_U8 use just the NV. */
0879cd66
JH		 5251
5252#ifdef __cplusplus
5253#define INFNAN_U8_NV_DECL EXTERN_C const union { U8 u8[NVSIZE]; NV nv; }
5254#define INFNAN_NV_U8_DECL EXTERN_C const union { NV nv; U8 u8[NVSIZE]; }
5255#else
9e76e8dd
JH		 5256#define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5257#define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
0879cd66 5258#endif
9e76e8dd 5259
cf6e31e9
DM		 5260/* if these never got defined, they need defaults */
5261#ifndef PERL_SET_CONTEXT
5262# define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5263#endif
5264
5265#ifndef PERL_GET_CONTEXT
5266# define PERL_GET_CONTEXT PERL_GET_INTERP
5267#endif
5268
5269#ifndef PERL_GET_THX
5270# define PERL_GET_THX ((void*)NULL)
5271#endif
5272
5273#ifndef PERL_SET_THX
5274# define PERL_SET_THX(t) NOOP
5275#endif
5276
5277
c7627e6d
NC		 5278#ifndef PERL_NO_INLINE_FUNCTIONS
5279/* Static inline funcs that depend on includes and declarations above.
5280 Some of these reference functions in the perl object files, and some
5281 compilers aren't smart enough to eliminate unused static inline
5282 functions, so including this file in source code can cause link errors
5283 even if the source code uses none of the functions. Hence including these
5284 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5285 (obviously) result in unworkable XS code, but allows simple probing code
5286 to continue to work, because it permits tests to include the perl headers
5287 for definitions without creating a link dependency on the perl library
5288 (which may not exist yet).
5289*/
5290
5291# include "inline.h"
5292#endif
f1fb8741 5293
bab3dc31 5294#include "overload.h"
a0d0e21e 5295
73c4f7a1
GS		 5296END_EXTERN_C
5297
a6006777 5298struct am_table {
8978b4ac
NC		 5299 U8 flags;
5300 U8 fallback;
5301 U16 spare;
eb160463 5302 U32 was_ok_sub;
9bd87817 5303 CV* table[NofAMmeth];
a0d0e21e 5304};
a6006777 5305struct am_table_short {
8978b4ac
NC		 5306 U8 flags;
5307 U8 fallback;
5308 U16 spare;
eb160463 5309 U32 was_ok_sub;
a6006777 5310};
a0d0e21e 5311typedef struct am_table AMT;
a6006777 5312typedef struct am_table_short AMTS;
a0d0e21e
LW		 5313
5314#define AMGfallNEVER 1
5315#define AMGfallNO 2
5316#define AMGfallYES 3
5317
a6006777 5318#define AMTf_AMAGIC 1
5319#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5320#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5321#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5322
32251b26 5323#define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
c0315cdf
JH		 5324
5325/*
5326 * some compilers like to redefine cos et alia as faster
5327 * (and less accurate?) versions called F_cos et cetera (Quidquid
5328 * latine dictum sit, altum viditur.) This trick collides with
5329 * the Perl overloading (amg). The following #defines fool both.
5330 */
5331
5332#ifdef _FASTMATH
5333# ifdef atan2
5334# define F_atan2_amg atan2_amg
5335# endif
5336# ifdef cos
5337# define F_cos_amg cos_amg
5338# endif
5339# ifdef exp
5340# define F_exp_amg exp_amg
5341# endif
5342# ifdef log
5343# define F_log_amg log_amg
5344# endif
5345# ifdef pow
5346# define F_pow_amg pow_amg
5347# endif
5348# ifdef sin
5349# define F_sin_amg sin_amg
5350# endif
5351# ifdef sqrt
5352# define F_sqrt_amg sqrt_amg
5353# endif
5354#endif /* _FASTMATH */
5355
83ee9e09
GS		 5356#define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
5357 PERLDBf_NOOPT | PERLDBf_INTER | \
5358 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
b8fcbefe
NC		 5359 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
5360 PERLDBf_SAVESRC)
925cfbb8 5361 /* No _NONAME, _GOTO */
83ee9e09
GS		 5362#define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
5363#define PERLDBf_LINE 0x02 /* Keep line # */
5364#define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
5365#define PERLDBf_INTER 0x08 /* Preserve more data for
5366 later inspections */
5367#define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
5368#define PERLDBf_SINGLE 0x20 /* Start with single-step on */
5369#define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
5370#define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
5371#define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
5372#define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
b8fcbefe 5373#define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
486ec47a 5374#define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
c30d8139 5375#define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
84902520 5376
8bd38399
DD		 5377#define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
5378#define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
5379#define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
5380#define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
5381#define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
5382#define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
5383#define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
5384#define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
5385#define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
5386#define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
5387#define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
5388#define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
5389#define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
bbce6d69 5390
c7a622b3
DD		 5391#define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
5392
91191cf7 5393#ifdef USE_LOCALE
d6ded950 5394/* These locale things are all subject to change */
929e1213 5395
5acc3fa5
KW		 5396
5397# if defined(HAS_NEWLOCALE) \
d269de98
KW		 5398 && defined(LC_ALL_MASK) \
5399 && defined(HAS_FREELOCALE) \
5400 && defined(HAS_USELOCALE) \
f1d2176b 5401 && ! defined(NO_POSIX_2008_LOCALE)
d269de98
KW		 5402
5403 /* The code is written for simplicity to assume that any platform advanced
5404 * enough to have the Posix 2008 locale functions has LC_ALL. The test
5405 * above makes sure that assumption is valid */
5406
5acc3fa5 5407# define HAS_POSIX_2008_LOCALE
d269de98
KW		 5408# endif
5409
5acc3fa5
KW		 5410/* We create a C locale object unconditionally if we have the functions to do
5411 * so; hence must destroy it unconditionally at the end */
5412# ifndef HAS_POSIX_2008_LOCALE
5413# define _LOCALE_TERM_POSIX_2008 NOOP
5414# else
5415# define _LOCALE_TERM_POSIX_2008 \
ffdde306 5416 STMT_START { \
ffdde306
KW		 5417 if (PL_C_locale_obj) { \
5418 /* Make sure we aren't using the locale \
5419 * space we are about to free */ \
5420 uselocale(LC_GLOBAL_LOCALE); \
5421 freelocale(PL_C_locale_obj); \
5422 PL_C_locale_obj = (locale_t) NULL; \
5423 } \
5acc3fa5
KW		 5424 } STMT_END
5425# endif
5426
5427# ifndef USE_ITHREADS
5428# define LOCALE_INIT
5429# define LOCALE_LOCK
5430# define LOCALE_UNLOCK
5431# define LOCALE_TERM STMT_START { _LOCALE_TERM_POSIX_2008; } STMT_END
5432# else /* Below is do use threads */
5433# define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex)
5434# define LOCALE_LOCK MUTEX_LOCK(&PL_locale_mutex)
5435# define LOCALE_UNLOCK MUTEX_UNLOCK(&PL_locale_mutex)
5436# define LOCALE_TERM \
5437 STMT_START { \
5438 MUTEX_DESTROY(&PL_locale_mutex); \
5439 _LOCALE_TERM_POSIX_2008; \
5440 } STMT_END
5441# ifdef HAS_POSIX_2008_LOCALE
5442# define USE_POSIX_2008_LOCALE
5443# define USE_THREAD_SAFE_LOCALE
5444# endif
5445# endif
a0b53297 5446
c8bf5ca7 5447/* Returns TRUE if the plain locale pragma without a parameter is in effect
66cbab2c 5448 */
6b421707
FC		 5449# define IN_LOCALE_RUNTIME (PL_curcop \
5450 && CopHINTS_get(PL_curcop) & HINT_LOCALE)
66cbab2c 5451
c8bf5ca7 5452/* Returns TRUE if either form of the locale pragma is in effect */
6d62ead0 5453# define IN_SOME_LOCALE_FORM_RUNTIME \
d6ded950 5454 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
66cbab2c 5455
6d62ead0
KW		 5456# define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
5457# define IN_SOME_LOCALE_FORM_COMPILETIME \
d6ded950 5458 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
2de3dbcc 5459
6d62ead0 5460# define IN_LOCALE \
923e4eb5 5461 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6d62ead0 5462# define IN_SOME_LOCALE_FORM \
66cbab2c
KW		 5463 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
5464 : IN_SOME_LOCALE_FORM_RUNTIME)
2de3dbcc 5465
6d62ead0
KW		 5466# define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
5467# define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
5468
5469# define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
5470# define IN_LC_PARTIAL_RUNTIME \
6b421707 5471 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
6d62ead0
KW		 5472
5473# define IN_LC_COMPILETIME(category) \
5474 (IN_LC_ALL_COMPILETIME || (IN_LC_PARTIAL_COMPILETIME \
5475 && _is_in_locale_category(TRUE, (category))))
5476# define IN_LC_RUNTIME(category) \
5477 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
5478 && _is_in_locale_category(FALSE, (category))))
5479# define IN_LC(category) \
5480 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
d6ded950 5481
780fcc9f
KW		 5482# if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
5483
5484 /* This internal macro should be called from places that operate under
5485 * locale rules. It there is a problem with the current locale that
2726666d
KW		 5486 * hasn't been raised yet, it will output a warning this time. Because
5487 * this will so rarely be true, there is no point to optimize for
5488 * time; instead it makes sense to minimize space used and do all the
5489 * work in the rarely called function */
33245021
KW		 5490# ifdef USE_LOCALE_CTYPE
5491# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
5492 STMT_START { \
5493 if (UNLIKELY(PL_warn_locale)) { \
8d8472df 5494 Perl__warn_problematic_locale(); \
33245021
KW		 5495 } \
5496 } STMT_END
5497# else
5498# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5499# endif
780fcc9f
KW		 5500
5501
613abc6d
KW		 5502 /* These two internal macros are called when a warning should be raised,
5503 * and will do so if enabled. The first takes a single code point
5504 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
5505 * string, and an end position which it won't try to read past */
5506# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
008e8e82
KW		 5507 STMT_START { \
5508 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5509 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
147e3846
KW		 5510 "Wide character (U+%" UVXf ") in %s",\
5511 (UV) cp, OP_DESC(PL_op)); \
008e8e82
KW		 5512 } \
5513 } STMT_END
613abc6d
KW		 5514
5515# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
5516 STMT_START { /* Check if to warn before doing the conversion work */\
008e8e82 5517 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
613abc6d
KW		 5518 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \
5519 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
147e3846 5520 "Wide character (U+%" UVXf ") in %s", \
613abc6d
KW		 5521 (cp == 0) \
5522 ? UNICODE_REPLACEMENT \
5523 : (UV) cp, \
5524 OP_DESC(PL_op)); \
5525 } \
5526 } STMT_END
5527
780fcc9f
KW		 5528# endif /* PERL_CORE or PERL_IN_XSUB_RE */
5529
91191cf7 5530#else /* No locale usage */
929e1213
KW		 5531# define LOCALE_INIT
5532# define LOCALE_TERM
a0b53297
KW		 5533# define LOCALE_LOCK
5534# define LOCALE_UNLOCK
91191cf7
KW		 5535# define IN_LOCALE_RUNTIME 0
5536# define IN_SOME_LOCALE_FORM_RUNTIME 0
5537# define IN_LOCALE_COMPILETIME 0
5538# define IN_SOME_LOCALE_FORM_COMPILETIME 0
5539# define IN_LOCALE 0
5540# define IN_SOME_LOCALE_FORM 0
5541# define IN_LC_ALL_COMPILETIME 0
5542# define IN_LC_ALL_RUNTIME 0
5543# define IN_LC_PARTIAL_COMPILETIME 0
5544# define IN_LC_PARTIAL_RUNTIME 0
5545# define IN_LC_COMPILETIME(category) 0
5546# define IN_LC_RUNTIME(category) 0
5547# define IN_LC(category) 0
780fcc9f
KW		 5548
5549# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
613abc6d
KW		 5550# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(a)
5551# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(a,b)
91191cf7
KW		 5552#endif
5553
6bf09f55
KW		 5554#ifdef USE_LOCALE_NUMERIC
5555
67d796ae 5556/* These macros are for toggling between the underlying locale (UNDERLYING or
45235d99
KW		 5557 * LOCAL) and the C locale (STANDARD).
5558
5559=head1 Locale-related functions and macros
5560
5561=for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5562
5563This macro should be used as a statement. It declares a private variable
5564(whose name begins with an underscore) that is needed by the other macros in
5565this section. Failing to include this correctly should lead to a syntax error.
5566For compatibility with C89 C compilers it should be placed in a block before
5567any executable statements.
5568
5569=for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
5570
5571This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
5572locale for category C<LC_NUMERIC> to be what perl thinks is the current
5573underlying locale. (The perl interpreter could be wrong about what the
5574underlying locale actually is if some C or XS code has called the C library
5575function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
5576this macro will update perl's records.)
5577
5578A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5579declare at compile time a private variable used by this macro. This macro
5580should be called as a single statement, not an expression, but with an empty
5581argument list, like this:
5582
5583 {
5584 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5585 ...
5586 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
5587 ...
5588 RESTORE_LC_NUMERIC();
5589 ...
5590 }
5591
5592The private variable is used to save the current locale state, so
5593that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
5594
5595=for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
5596
5597This is used to help wrap XS or C code that that is C<LC_NUMERIC> locale-aware.
5598This locale category is generally kept set to the C locale by Perl for
5599backwards compatibility, and because most XS code that reads floating point
5600values can cope only with the decimal radix character being a dot.
5601
5602This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
5603aware of locale if the call to the XS or C code from the Perl program is
5604from within the scope of a S<C<use locale>>; or to ignore locale if the call is
5605instead from outside such scope.
5606
5607This macro is the start of wrapping the C or XS code; the wrap ending is done
5608by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
5609the state can be changed that will adversely affect other XS code.
5610
5611A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5612declare at compile time a private variable used by this macro. This macro
5613should be called as a single statement, not an expression, but with an empty
5614argument list, like this:
5615
5616 {
5617 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5618 ...
5619 STORE_LC_NUMERIC_SET_TO_NEEDED();
5620 ...
5621 RESTORE_LC_NUMERIC();
5622 ...
5623 }
5624
5625=for apidoc Am|void|RESTORE_LC_NUMERIC
5626
5627This is used in conjunction with one of the macros
5628L</STORE_LC_NUMERIC_SET_TO_NEEDED>
5629and
5630L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING>
5631
5632to properly restore the C<LC_NUMERIC> state.
5633
5634A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5635declare at compile time a private variable used by this macro and the two
5636C<STORE> ones. This macro should be called as a single statement, not an
5637expression, but with an empty argument list, like this:
5638
5639 {
5640 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5641 ...
5642 RESTORE_LC_NUMERIC();
5643 ...
5644 }
5645
5646=cut
5647
5648*/
8a11fac9 5649
aaaeb297 5650#define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
7738054c
KW		 5651
5652/* We can lock the category to stay in the C locale, making requests to the
260c7ace
KW		 5653 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
5654 * */
67d796ae
KW		 5655#define _NOT_IN_NUMERIC_UNDERLYING \
5656 (! PL_numeric_local && PL_numeric_standard < 2)
5657
5658#define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
5659 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
5660
5661#define STORE_LC_NUMERIC_SET_TO_NEEDED() \
5662 if (IN_LC(LC_NUMERIC)) { \
5663 if (_NOT_IN_NUMERIC_UNDERLYING) { \
8d8472df 5664 Perl_set_numeric_local(aTHX); \
67d796ae
KW		 5665 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5666 } \
5667 } \
5668 else { \
5669 if (_NOT_IN_NUMERIC_STANDARD) { \
5670 SET_NUMERIC_STANDARD(); \
5671 _restore_LC_NUMERIC_function = &Perl_set_numeric_local; \
5672 } \
8a11fac9
KW		 5673 }
5674
e737dcc5
KW		 5675#define RESTORE_LC_NUMERIC() \
5676 if (_restore_LC_NUMERIC_function) { \
5677 _restore_LC_NUMERIC_function(aTHX); \
8a11fac9
KW		 5678 }
5679
5680/* The next two macros set unconditionally. These should be rarely used, and
5681 * only after being sure that this is what is needed */
8d98ede7 5682#define SET_NUMERIC_STANDARD() \
8d8472df
KW		 5683 STMT_START { if (_NOT_IN_NUMERIC_STANDARD) \
5684 Perl_set_numeric_standard(aTHX); \
5685 } STMT_END
87755cd9 5686
67d796ae
KW		 5687#define SET_NUMERIC_UNDERLYING() \
5688 STMT_START { if (_NOT_IN_NUMERIC_UNDERLYING) \
8d8472df 5689 Perl_set_numeric_local(aTHX); } STMT_END
87755cd9 5690
8a11fac9
KW		 5691/* The rest of these LC_NUMERIC macros toggle to one or the other state, with
5692 * the RESTORE_foo ones called to switch back, but only if need be */
67d796ae
KW		 5693#define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD() \
5694 bool _was_local = _NOT_IN_NUMERIC_STANDARD; \
8d8472df 5695 if (_was_local) Perl_set_numeric_standard(aTHX);
f93f4e46 5696
b34856cb
KW		 5697/* Doesn't change to underlying locale unless within the scope of some form of
5698 * 'use locale'. This is the usual desired behavior. */
67d796ae
KW		 5699#define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING() \
5700 bool _was_standard = _NOT_IN_NUMERIC_UNDERLYING \
5701 && IN_LC(LC_NUMERIC); \
8d8472df 5702 if (_was_standard) Perl_set_numeric_local(aTHX);
f93f4e46 5703
371d5d44
KW		 5704/* Rarely, we want to change to the underlying locale even outside of 'use
5705 * locale'. This is principally in the POSIX:: functions */
67d796ae
KW		 5706#define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
5707 if (_NOT_IN_NUMERIC_UNDERLYING) { \
8d8472df 5708 Perl_set_numeric_local(aTHX); \
67d796ae
KW		 5709 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5710 }
371d5d44 5711
42752acc
KW		 5712/* Lock/unlock to the C locale until unlock is called. This needs to be
5713 * recursively callable. [perl #128207] */
67d796ae
KW		 5714#define LOCK_LC_NUMERIC_STANDARD() \
5715 (__ASSERT_(PL_numeric_standard) \
42752acc 5716 PL_numeric_standard++)
67d796ae 5717#define UNLOCK_LC_NUMERIC_STANDARD() \
42752acc
KW		 5718 STMT_START { \
5719 if (PL_numeric_standard > 1) { \
5720 PL_numeric_standard--; \
5721 } \
5722 else { \
5723 assert(0); \
5724 } \
5725 } STMT_END
7738054c 5726
67d796ae 5727#define RESTORE_LC_NUMERIC_UNDERLYING() \
8d8472df 5728 if (_was_local) Perl_set_numeric_local(aTHX);
f93f4e46 5729
67d796ae
KW		 5730#define RESTORE_LC_NUMERIC_STANDARD() \
5731 if (_restore_LC_NUMERIC_function) { \
5732 _restore_LC_NUMERIC_function(aTHX); \
5733 }
f93f4e46 5734
36477c24 5735#else /* !USE_LOCALE_NUMERIC */
bbce6d69 5736
63b18b66
KW		 5737#define SET_NUMERIC_STANDARD()
5738#define SET_NUMERIC_UNDERLYING()
5e931b6b 5739#define IS_NUMERIC_RADIX(a, b) (0)
67d796ae
KW		 5740#define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5741#define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5742#define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5743#define RESTORE_LC_NUMERIC_UNDERLYING()
e737dcc5 5744#define RESTORE_LC_NUMERIC_STANDARD()
67d796ae 5745#define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
8a11fac9 5746#define STORE_LC_NUMERIC_SET_TO_NEEDED()
8a11fac9 5747#define RESTORE_LC_NUMERIC()
67d796ae
KW		 5748#define LOCK_LC_NUMERIC_STANDARD()
5749#define UNLOCK_LC_NUMERIC_STANDARD()
8a11fac9 5750
36477c24 5751#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 5752
22bc8aa4
KW		 5753#define Atof my_atof
5754
67d796ae
KW		 5755/* Back-compat names */
5756#define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED \
5757 DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5758#define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED() \
5759 DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED; \
5760 STORE_LC_NUMERIC_SET_TO_NEEDED();
5761#define LOCK_NUMERIC_STANDARD() LOCK_LC_NUMERIC_STANDARD()
5762#define RESTORE_NUMERIC_LOCAL() RESTORE_LC_NUMERIC_UNDERLYING()
5763#define RESTORE_NUMERIC_STANDARD() RESTORE_LC_NUMERIC_STANDARD()
5764#define SET_NUMERIC_LOCAL() SET_NUMERIC_UNDERLYING()
5765#define STORE_NUMERIC_LOCAL_SET_STANDARD() \
5766 STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
5767#define STORE_NUMERIC_STANDARD_SET_LOCAL() \
5768 STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
5769#define STORE_NUMERIC_STANDARD_FORCE_LOCAL() \
5770 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
5771#define UNLOCK_NUMERIC_STANDARD() UNLOCK_LC_NUMERIC_STANDARD()
5772
5773
5774
05b4a618
JH		 5775#ifdef USE_QUADMATH
5776# define Perl_strtod(s, e) strtoflt128(s, e)
5777#elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
f1b32d61
JH		 5778# if defined(HAS_STRTOLD)
5779# define Perl_strtod(s, e) strtold(s, e)
5780# elif defined(HAS_STRTOD)
5781# define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */
5782# endif
5783#elif defined(HAS_STRTOD)
5784# define Perl_strtod(s, e) strtod(s, e)
5785#endif
5786
85b76970
SH		 5787#if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
5788 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 5789# ifdef __hpux
5790# define strtoll __strtoll /* secret handshake */
5791# endif
8ed77d12 5792# if defined(WIN64) && defined(_MSC_VER)
c623ac67
GS		 5793# define strtoll _strtoi64 /* secret handshake */
5794# endif
079290de
GS		 5795# if !defined(Strtol) && defined(HAS_STRTOLL)
5796# define Strtol strtoll
ad551343 5797# endif
28e5dec8
JH		 5798# if !defined(Strtol) && defined(HAS_STRTOQ)
5799# define Strtol strtoq
5800# endif
ff935051 5801/* is there atoq() anywhere? */
15b99d39 5802#endif
079290de
GS		 5803#if !defined(Strtol) && defined(HAS_STRTOL)
5804# define Strtol strtol
5805#endif
5806#ifndef Atol
5807/* It would be more fashionable to use Strtol() to define atol()
5808 * (as is done for Atoul(), see below) but for backward compatibility
5809 * we just assume atol(). */
85b76970
SH		 5810# if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
5811 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
c623ac67
GS		 5812# ifdef WIN64
5813# define atoll _atoi64 /* secret handshake */
5814# endif
76b882ba
JH		 5815# define Atol atoll
5816# else
5817# define Atol atol
5818# endif
cf2093f6
JH		 5819#endif
5820
85b76970
SH		 5821#if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
5822 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 5823# ifdef __hpux
5824# define strtoull __strtoull /* secret handshake */
5825# endif
8ed77d12 5826# if defined(WIN64) && defined(_MSC_VER)
c623ac67
GS		 5827# define strtoull _strtoui64 /* secret handshake */
5828# endif
ad551343 5829# if !defined(Strtoul) && defined(HAS_STRTOULL)
388d3c03 5830# define Strtoul strtoull
15b99d39 5831# endif
079290de
GS		 5832# if !defined(Strtoul) && defined(HAS_STRTOUQ)
5833# define Strtoul strtouq
5834# endif
76d49b1c 5835/* is there atouq() anywhere? */
ad551343 5836#endif
079290de
GS		 5837#if !defined(Strtoul) && defined(HAS_STRTOUL)
5838# define Strtoul strtoul
cf2093f6 5839#endif
a5523c5b
JH		 5840#if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
5841# define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
5842#endif
079290de 5843#ifndef Atoul
d4c19fe8 5844# define Atoul(s) Strtoul(s, NULL, 10)
55eb892c 5845#endif
cf2093f6 5846
a868473f
NIS		 5847#ifndef PERL_SCRIPT_MODE
5848#define PERL_SCRIPT_MODE "r"
5849#endif
5850
d2af2719 5851/* not used. Kept as a NOOP for backcompat */
c2af87cb 5852#define PERL_STACK_OVERFLOW_CHECK() NOOP
da927450
JH		 5853
5854/*
5855 * Some nonpreemptive operating systems find it convenient to
5856 * check for asynchronous conditions after each op execution.
5857 * Keep this check simple, or it may slow down execution
5858 * massively.
5859 */
ce08f86c 5860
1d615522 5861#ifndef PERL_MICRO
4ffa73a3 5862# ifndef PERL_ASYNC_CHECK
5d9574c1 5863# define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
4ffa73a3 5864# endif
ce08f86c
NIS		 5865#endif
5866
da927450 5867#ifndef PERL_ASYNC_CHECK
1d615522 5868# define PERL_ASYNC_CHECK() NOOP
da927450
JH		 5869#endif
5870
5871/*
5872 * On some operating systems, a memory allocation may succeed,
5873 * but put the process too close to the system's comfort limit.
5874 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
5875 * it to NULL.
5876 */
5877#ifndef PERL_ALLOC_CHECK
c2af87cb 5878#define PERL_ALLOC_CHECK(p) NOOP
da927450
JH		 5879#endif
5880
bd89102f
AD		 5881#ifdef HAS_SEM
5882# include <sys/ipc.h>
5883# include <sys/sem.h>
5884# ifndef HAS_UNION_SEMUN /* Provide the union semun. */
5885 union semun {
dbba660d
TC		 5886 int val;
5887 struct semid_ds *buf;
5888 unsigned short *array;
bd89102f
AD		 5889 };
5890# endif
5891# ifdef USE_SEMCTL_SEMUN
dbba660d
TC		 5892# ifdef IRIX32_SEMUN_BROKEN_BY_GCC
5893 union gccbug_semun {
5894 int val;
5895 struct semid_ds *buf;
5896 unsigned short *array;
5897 char __dummy[5];
5898 };
5899# define semun gccbug_semun
5900# endif
bd89102f 5901# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
da5fdda8 5902# elif defined(USE_SEMCTL_SEMID_DS)
e6f0bdd6
GS		 5903# ifdef EXTRA_F_IN_SEMUN_BUF
5904# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
5905# else
5906# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
5907# endif
bd89102f 5908# endif
bd89102f 5909#endif
49f531da 5910
89ca4ac7
JH		 5911/*
5912 * Boilerplate macros for initializing and accessing interpreter-local
5913 * data from C. All statics in extensions should be reworked to use
7588b095
JH		 5914 * this, if you want to make the extension thread-safe. See
5915 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
5916 * and perlxs.pod for more.
89ca4ac7
JH		 5917 *
5918 * Code that uses these macros is responsible for the following:
43a739c2
JH		 5919 * 1. #define MY_CXT_KEY to a unique string, e.g.
5920 * "DynaLoader::_guts" XS_VERSION
f16dd614 5921 * XXX in the current implementation, this string is ignored.
89ca4ac7
JH		 5922 * 2. Declare a typedef named my_cxt_t that is a structure that contains
5923 * all the data that needs to be interpreter-local.
5924 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
5925 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
5926 * (typically put in the BOOT: section).
5927 * 5. Use the members of the my_cxt_t structure everywhere as
5928 * MY_CXT.member.
5929 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
5930 * access MY_CXT.
5931 */
5932
fc958cd2 5933#if defined(PERL_IMPLICIT_CONTEXT)
89ca4ac7 5934
4eddb856 5935/* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
53d44271
JH		 5936 * right after the definition (i.e. at file scope). The non-threads
5937 * case below uses it to declare the data as static. */
00ab59c9
DM		 5938# ifdef PERL_GLOBAL_STRUCT_PRIVATE
5939# define START_MY_CXT
5940# define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
5941# define MY_CXT_INIT_ARG MY_CXT_KEY
5942# else
5943# define START_MY_CXT static int my_cxt_index = -1;
5944# define MY_CXT_INDEX my_cxt_index
5945# define MY_CXT_INIT_ARG &my_cxt_index
5946# endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
53d44271
JH		 5947
5948/* Creates and zeroes the per-interpreter data.
5949 * (We allocate my_cxtp in a Perl SV so that it will be released when
5950 * the interpreter goes away.) */
00ab59c9 5951# define MY_CXT_INIT \
53d44271 5952 my_cxt_t *my_cxtp = \
9f6df31a
Z		 5953 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5954 PERL_UNUSED_VAR(my_cxtp)
00ab59c9 5955# define MY_CXT_INIT_INTERP(my_perl) \
53d44271 5956 my_cxt_t *my_cxtp = \
9f6df31a
Z		 5957 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
5958 PERL_UNUSED_VAR(my_cxtp)
53d44271
JH		 5959
5960/* This declaration should be used within all functions that use the
5961 * interpreter-local data. */
00ab59c9 5962# define dMY_CXT \
53d44271 5963 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
00ab59c9 5964# define dMY_CXT_INTERP(my_perl) \
53d44271
JH		 5965 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
5966
5967/* Clones the per-interpreter data. */
00ab59c9 5968# define MY_CXT_CLONE \
53d44271 5969 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
8b573070 5970 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
ccaa51ca
DD		 5971 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
5972 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
5973
53d44271 5974
53d44271 5975
89ca4ac7 5976/* This macro must be used to access members of the my_cxt_t structure.
870598ae 5977 * e.g. MY_CXT.some_data */
00ab59c9 5978# define MY_CXT (*my_cxtp)
89ca4ac7
JH		 5979
5980/* Judicious use of these macros can reduce the number of times dMY_CXT
5981 * is used. Use is similar to pTHX, aTHX etc. */
00ab59c9
DM		 5982# define pMY_CXT my_cxt_t *my_cxtp
5983# define pMY_CXT_ pMY_CXT,
5984# define _pMY_CXT ,pMY_CXT
5985# define aMY_CXT my_cxtp
5986# define aMY_CXT_ aMY_CXT,
5987# define _aMY_CXT ,aMY_CXT
89ca4ac7 5988
f16dd614 5989#else /* PERL_IMPLICIT_CONTEXT */
89ca4ac7 5990
00ab59c9
DM		 5991# define START_MY_CXT static my_cxt_t my_cxt;
5992# define dMY_CXT_SV dNOOP
5993# define dMY_CXT dNOOP
5994# define dMY_CXT_INTERP(my_perl) dNOOP
5995# define MY_CXT_INIT NOOP
5996# define MY_CXT_CLONE NOOP
5997# define MY_CXT my_cxt
5998
5999# define pMY_CXT void
6000# define pMY_CXT_
6001# define _pMY_CXT
6002# define aMY_CXT
6003# define aMY_CXT_
6004# define _aMY_CXT
89ca4ac7 6005
f16dd614 6006#endif /* !defined(PERL_IMPLICIT_CONTEXT) */
89ca4ac7 6007
9a34ef1d
GS		 6008#ifdef I_FCNTL
6009# include <fcntl.h>
9a34ef1d
GS		 6010#endif
6011
9cffb111
OS		 6012#ifdef __Lynx__
6013# include <fcntl.h>
6014#endif
6015
3c0208ad
AB		 6016#ifdef __amigaos4__
6017# undef FD_CLOEXEC /* a lie in AmigaOS */
6018#endif
6019
9a34ef1d
GS		 6020#ifdef I_SYS_FILE
6021# include <sys/file.h>
6022#endif
6023
fa0a29af 6024#if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
2ef53570
JH		 6025int flock(int fd, int op);
6026#endif
6027
fe52b3b7
GS		 6028#ifndef O_RDONLY
6029/* Assume UNIX defaults */
6030# define O_RDONLY 0000
6031# define O_WRONLY 0001
6032# define O_RDWR 0002
6033# define O_CREAT 0100
6034#endif
9a34ef1d 6035
16fe6d59
GS		 6036#ifndef O_BINARY
6037# define O_BINARY 0
6038#endif
6039
6040#ifndef O_TEXT
6041# define O_TEXT 0
6042#endif
6043
6ce75a77 6044#if O_TEXT != O_BINARY
38d96942 6045 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6ce75a77 6046 * that is, you are somehow DOSish. */
b6c36746
NC		 6047# if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6048 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6049 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
73250e76
JH		 6050 /* VOS has O_TEXT != O_BINARY, and they have effect,
6051 * but VOS always uses LF, never CRLF. */
6ce75a77
JH		 6052 /* If you have O_TEXT different from your O_BINARY but you still are
6053 * not a CRLF shop. */
35990314 6054# undef PERLIO_USING_CRLF
ec53fe4f
JH		 6055# else
6056 /* If you really are DOSish. */
6057# define PERLIO_USING_CRLF 1
6ce75a77
JH		 6058# endif
6059#endif
6060
4bc88a62
PS		 6061#ifdef I_LIBUTIL
6062# include <libutil.h> /* setproctitle() in some FreeBSDs */
6063#endif
6064
b4748376 6065#ifndef EXEC_ARGV_CAST
360ea906 6066#define EXEC_ARGV_CAST(x) (char **)x
b4748376
NIS		 6067#endif
6068
dd5dc04f
JH		 6069#define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6070 int). value returned in pointed-
6071 to UV */
6072#define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
d70489e1 6073#define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
dd5dc04f
JH		 6074#define IS_NUMBER_NEG 0x08 /* leading minus sign */
6075#define IS_NUMBER_INFINITY 0x10 /* this is big */
aa8b85de 6076#define IS_NUMBER_NAN 0x20 /* this is not */
3f7602fa 6077#define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
dd5dc04f
JH		 6078
6079#define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6080
53305cf1
NC		 6081/* Input flags: */
6082#define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
a4c04bdc 6083#define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
94dd8549 6084#define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
02470786
KW		 6085#define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6086 numbers which are <= UV_MAX */
3f7602fa
TC		 6087#define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6088 and set IS_NUMBER_TRAILING */
6089
53305cf1
NC		 6090/* Output flags: */
6091#define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6092
2c4f7f0e
DM		 6093/* to let user control profiling */
6094#ifdef PERL_GPROF_CONTROL
6095extern void moncontrol(int);
6096#define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6097#else
6098#define PERL_GPROF_MONCONTROL(x)
6099#endif
6100
ae0e3d3b
JH		 6101#ifdef UNDER_CE
6102#include "wince.h"
6103#endif
6104
6105/* ISO 6429 NEL - C1 control NExt Line */
6106/* See http://www.unicode.org/unicode/reports/tr13/ */
ec34087a 6107#define NEXT_LINE_CHAR NEXT_LINE_NATIVE
ae0e3d3b 6108
479b2847
GS		 6109#ifndef PIPESOCK_MODE
6110# define PIPESOCK_MODE
6111#endif
6112
460c8493
IZ		 6113#ifndef SOCKET_OPEN_MODE
6114# define SOCKET_OPEN_MODE PIPESOCK_MODE
6115#endif
6116
6117#ifndef PIPE_OPEN_MODE
6118# define PIPE_OPEN_MODE PIPESOCK_MODE
6119#endif
6120
7e8c5dac
HS		 6121#define PERL_MAGIC_UTF8_CACHESIZE 2
6122
a05d7ebb
JH		 6123#define PERL_UNICODE_STDIN_FLAG 0x0001
6124#define PERL_UNICODE_STDOUT_FLAG 0x0002
6125#define PERL_UNICODE_STDERR_FLAG 0x0004
a05d7ebb
JH		 6126#define PERL_UNICODE_IN_FLAG 0x0008
6127#define PERL_UNICODE_OUT_FLAG 0x0010
06e66572 6128#define PERL_UNICODE_ARGV_FLAG 0x0020
a05d7ebb
JH		 6129#define PERL_UNICODE_LOCALE_FLAG 0x0040
6130#define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
5a22a2bb 6131#define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
a05d7ebb 6132
06e66572
JH		 6133#define PERL_UNICODE_STD_FLAG \
6134 (PERL_UNICODE_STDIN_FLAG | \
6135 PERL_UNICODE_STDOUT_FLAG | \
6136 PERL_UNICODE_STDERR_FLAG)
6137
6138#define PERL_UNICODE_INOUT_FLAG \
6139 (PERL_UNICODE_IN_FLAG | \
6140 PERL_UNICODE_OUT_FLAG)
6141
6142#define PERL_UNICODE_DEFAULT_FLAGS \
a05d7ebb
JH		 6143 (PERL_UNICODE_STD_FLAG | \
6144 PERL_UNICODE_INOUT_FLAG | \
6145 PERL_UNICODE_LOCALE_FLAG)
6146
5a22a2bb 6147#define PERL_UNICODE_ALL_FLAGS 0x01ff
a05d7ebb
JH		 6148
6149#define PERL_UNICODE_STDIN 'I'
6150#define PERL_UNICODE_STDOUT 'O'
6151#define PERL_UNICODE_STDERR 'E'
6152#define PERL_UNICODE_STD 'S'
6153#define PERL_UNICODE_IN 'i'
6154#define PERL_UNICODE_OUT 'o'
6155#define PERL_UNICODE_INOUT 'D'
6156#define PERL_UNICODE_ARGV 'A'
6157#define PERL_UNICODE_LOCALE 'L'
6158#define PERL_UNICODE_WIDESYSCALLS 'W'
5a22a2bb 6159#define PERL_UNICODE_UTF8CACHEASSERT 'a'
a05d7ebb 6160
4ffa73a3
JH		 6161#define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6162
32fdb065 6163/* Use instead of abs() since abs() forces its argument to be an int,
56c380de 6164 * but also beware since this evaluates its argument twice, so no x++. */
32fdb065
JH		 6165#define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6166
3c0f78ca
JH		 6167#if defined(__DECC) && defined(__osf__)
6168#pragma message disable (mainparm) /* Perl uses the envp in main(). */
24801a4b
JH		 6169#endif
6170
e4dba786
NC		 6171#define do_open(g, n, l, a, rm, rp, sf) \
6172 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
9555a685 6173#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
711aba4c 6174# define do_exec(cmd) do_exec3(cmd,0,0)
a9f96b3f 6175#endif
15871fce
NC		 6176#ifdef OS2
6177# define do_aexec Perl_do_aexec
6178#else
6179# define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
9555a685 6180#endif
e4dba786 6181
c8028aa6
TC		 6182/* check embedded \0 characters in pathnames passed to syscalls,
6183 but allow one ending \0 */
41188aa0 6184#define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
c8028aa6 6185
41188aa0 6186#define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
c8028aa6 6187
53e89cff 6188#if defined(OEMVS) || defined(__amigaos4__)
2f3efc97
JH		 6189#define NO_ENV_ARRAY_IN_MAIN
6190#endif
6191
00f254e2
KW		 6192/* These are used by Perl_pv_escape() and Perl_pv_pretty()
6193 * are here so that they are available throughout the core
10edeb5d
JH		 6194 * NOTE that even though some are for _escape and some for _pretty
6195 * there must not be any clashes as the flags from _pretty are
6196 * passed straight through to _escape.
6197 */
6198
4420a417 6199#define PERL_PV_ESCAPE_QUOTE 0x000001
10edeb5d
JH		 6200#define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6201
4420a417
YO		 6202#define PERL_PV_PRETTY_ELLIPSES 0x000002
6203#define PERL_PV_PRETTY_LTGT 0x000004
6204#define PERL_PV_PRETTY_EXACTSIZE 0x000008
10edeb5d 6205
4420a417
YO		 6206#define PERL_PV_ESCAPE_UNI 0x000100
6207#define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6208#define PERL_PV_ESCAPE_NONASCII 0x000400
6209#define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
10edeb5d 6210
4420a417
YO		 6211#define PERL_PV_ESCAPE_ALL 0x001000
6212#define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6213#define PERL_PV_ESCAPE_NOCLEAR 0x004000
6214#define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
6215#define PERL_PV_ESCAPE_RE 0x008000
10edeb5d 6216
4420a417 6217#define PERL_PV_ESCAPE_DWIM 0x010000
0eb335df 6218
881a015e 6219
10edeb5d 6220/* used by pv_display in dump.c*/
95b611b0 6221#define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
c89df6cf 6222#define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
10edeb5d 6223
a7157111
JH		 6224#if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \
6225 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \
6226 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT
6227# define DOUBLE_IS_VAX_FLOAT
6228#else
6229# define DOUBLE_IS_IEEE_FORMAT
6230#endif
6231
3fd106b1
JH		 6232#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
6233 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
6234 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6235# define DOUBLE_LITTLE_ENDIAN
6236#endif
6237
075bc527
JH		 6238#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
6239 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
6240 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6241# define DOUBLE_BIG_ENDIAN
6242#endif
6243
804d4e64
JH		 6244#if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
6245 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6246# define DOUBLE_MIX_ENDIAN
6247#endif
6248
60d50332
JH		 6249/* The VAX fp formats are neither consistently little-endian nor
6250 * big-endian, and neither are they really IEEE-mixed endian like
6251 * the mixed-endian ARM IEEE formats (with swapped bytes).
e90f8530 6252 * Ultimately, the VAX format came from the PDP-11.
60d50332
JH		 6253 *
6254 * The ordering of the parts in VAX floats is quite vexing.
6255 * In the below the fraction_n are the mantissa bits.
df127a67 6256 *
60d50332 6257 * The fraction_1 is the most significant (numbering as by DEC/Digital),
6ce22998
JH		 6258 * while the rightmost bit in each fraction is the least significant:
6259 * in other words, big-endian bit order within the fractions.
df127a67 6260 *
6ce22998 6261 * The fraction segments themselves would be big-endianly, except that
df127a67 6262 * within 32 bit segments the less significant half comes first, the more
6ce22998 6263 * significant after, except that in the format H (used for long doubles)
df127a67 6264 * the first fraction segment is alone, because the exponent is wider.
6ce22998
JH		 6265 * This means for example that both the most and the least significant
6266 * bits can be in the middle of the floats, not at either end.
6267 *
6268 * References:
6269 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm
6270 * http://www.quadibloc.com/comp/cp0201.htm
6271 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html
6272 * (somebody at HP should be fired for the URLs)
60d50332 6273 *
df127a67 6274 * F fraction_2:16 sign:1 exp:8 fraction_1:7
e90f8530 6275 * (exponent bias 128, hidden first one-bit)
60d50332 6276 *
df127a67 6277 * D fraction_2:16 sign:1 exp:8 fraction_1:7
60d50332 6278 * fraction_4:16 fraction_3:16
e90f8530 6279 * (exponent bias 128, hidden first one-bit)
60d50332 6280 *
6ce22998 6281 * G fraction_2:16 sign:1 exp:11 fraction_1:4
60d50332 6282 * fraction_4:16 fraction_3:16
e90f8530 6283 * (exponent bias 1024, hidden first one-bit)
60d50332
JH		 6284 *
6285 * H fraction_1:16 sign:1 exp:15
6286 * fraction_3:16 fraction_2:16
6287 * fraction_5:16 fraction_4:16
6288 * fraction_7:16 fraction_6:16
e90f8530
JH		 6289 * (exponent bias 16384, hidden first one-bit)
6290 * (available only on VAX, and only on Fortran?)
6291 *
6292 * The formats S, T and X are available on the Alpha (and Itanium,
6293 * also known as I64/IA64) and are equivalent with the IEEE-754 formats
6294 * binary32, binary64, and binary128 (commonly: float, double, long double).
6295 *
6296 * S sign:1 exp:8 mantissa:23
6297 * (exponent bias 127, hidden first one-bit)
6298 *
6299 * T sign:1 exp:11 mantissa:52
6300 * (exponent bias 1022, hidden first one-bit)
6301 *
6302 * X sign:1 exp:15 mantissa:112
6303 * (exponent bias 16382, hidden first one-bit)
60d50332 6304 *
60d50332 6305 */
a7157111
JH		 6306
6307#ifdef DOUBLE_IS_VAX_FLOAT
6308# define DOUBLE_VAX_ENDIAN
6309#endif
6310
6311#ifdef DOUBLE_IS_IEEE_FORMAT
63a6ab05 6312/* All the basic IEEE formats have the implicit bit,
b6d9b423
JH		 6313 * except for the x86 80-bit extended formats, which will undef this.
6314 * Also note that the IEEE 754 subnormals (formerly known as denormals)
6315 * do not have the implicit bit of one. */
a7157111
JH		 6316# define NV_IMPLICIT_BIT
6317#endif
63a6ab05 6318
a7157111 6319#if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE
3fd106b1
JH		 6320
6321# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
6322 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
1f02ab1d 6323 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
3fd106b1
JH		 6324# define LONGDOUBLE_LITTLE_ENDIAN
6325# endif
6326
6327# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
6328 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
1f02ab1d 6329 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
3fd106b1
JH		 6330# define LONGDOUBLE_BIG_ENDIAN
6331# endif
6332
1f02ab1d
JH		 6333# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6334 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6335# define LONGDOUBLE_MIX_ENDIAN
6336# endif
6337
3fd106b1
JH		 6338# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6339 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6340# define LONGDOUBLE_X86_80_BIT
63a6ab05
JH		 6341# ifdef USE_LONG_DOUBLE
6342# undef NV_IMPLICIT_BIT
f40ac91c 6343# define NV_X86_80_BIT
63a6ab05 6344# endif
3fd106b1
JH		 6345# endif
6346
1f02ab1d
JH		 6347# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6348 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6349 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6350 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
3fd106b1
JH		 6351# define LONGDOUBLE_DOUBLEDOUBLE
6352# endif
6353
2c7d9883
JH		 6354# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT
6355# define LONGDOUBLE_VAX_ENDIAN
6356# endif
6357
f03a9d38 6358#endif /* LONG_DOUBLEKIND */
3fd106b1 6359
9e76e8dd
JH		 6360#ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
6361# if defined(DOUBLE_LITTLE_ENDIAN)
6362# define NV_LITTLE_ENDIAN
6363# elif defined(DOUBLE_BIG_ENDIAN)
6364# define NV_BIG_ENDIAN
6365# elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
6366# define NV_MIX_ENDIAN
6367# endif
6368#elif NVSIZE == DOUBLESIZE
d701dd28
JH		 6369# ifdef DOUBLE_LITTLE_ENDIAN
6370# define NV_LITTLE_ENDIAN
6371# endif
6372# ifdef DOUBLE_BIG_ENDIAN
6373# define NV_BIG_ENDIAN
6374# endif
804d4e64
JH		 6375# ifdef DOUBLE_MIX_ENDIAN
6376# define NV_MIX_ENDIAN
6377# endif
a7157111
JH		 6378# ifdef DOUBLE_VAX_ENDIAN
6379# define NV_VAX_ENDIAN
6380# endif
d701dd28
JH		 6381#elif NVSIZE == LONG_DOUBLESIZE
6382# ifdef LONGDOUBLE_LITTLE_ENDIAN
6383# define NV_LITTLE_ENDIAN
6384# endif
6385# ifdef LONGDOUBLE_BIG_ENDIAN
6386# define NV_BIG_ENDIAN
6387# endif
1f02ab1d
JH		 6388# ifdef LONGDOUBLE_MIX_ENDIAN
6389# define NV_MIX_ENDIAN
6390# endif
2c7d9883
JH		 6391# ifdef LONGDOUBLE_VAX_ENDIAN
6392# define NV_VAX_ENDIAN
6393# endif
d701dd28
JH		 6394#endif
6395
488307ff
S		 6396/* We have somehow managed not to define the denormal/subnormal
6397 * detection.
6398 *
6399 * This may happen if the compiler doesn't expose the C99 math like
6400 * the fpclassify() without some special switches. Perl tries to
6401 * stay C89, so for example -std=c99 is not an option.
6402 *
6403 * The Perl_isinf() and Perl_isnan() should have been defined even if
6404 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes
6405 * from the C89 DBL_MIN or moral equivalent. */
6406#if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN)
6407# define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN)
6408#endif
6409
6410/* This is not a great fallback: subnormals tests will fail,
6411 * but at least Perl will link and 99.999% of tests will work. */
6412#if !defined(Perl_fp_class_denorm)
6413# define Perl_fp_class_denorm(x) FALSE
6414#endif
6415
a7157111
JH		 6416#ifdef DOUBLE_IS_IEEE_FORMAT
6417# define DOUBLE_HAS_INF
6418# define DOUBLE_HAS_NAN
6419#endif
6420
6421#ifdef DOUBLE_HAS_NAN
6422
9ee3aea9
JH		 6423#ifdef DOINIT
6424
6425/* PL_inf and PL_nan initialization.
6426 *
6427 * For inf and nan initialization the ultimate fallback is dividing
6428 * one or zero by zero: however, some compilers will warn or even fail
6429 * on divide-by-zero, but hopefully something earlier will work.
6430 *
6431 * If you are thinking of using HUGE_VAL for infinity, or using
6432 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
6433 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
6434 * and the math functions might be just generating DBL_MAX, or even zero.
6435 *
6436 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
6437 * Though logically correct, some compilers (like Visual C 2003)
6438 * falsely misoptimize that to zero (x-x is always zero, right?)
6439 *
6440 * Finally, note that not all floating point formats define Inf (or NaN).
6441 * For the infinity a large number may be used instead. Operations that
6442 * under the IEEE floating point would return Inf or NaN may return
6443 * either large numbers (positive or negative), or they may cause
6444 * a floating point exception or some other fault.
6445 */
6446
6447/* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
6448GCC_DIAG_IGNORE(-Wc++-compat)
6449
6450# ifdef USE_QUADMATH
6451/* Cannot use HUGE_VALQ for PL_inf because not a compile-time
6452 * constant. */
6453INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
6454# elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
6455INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
6456# elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
6457INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
6458# else
6459# if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6460# if defined(LDBL_INFINITY)
6461INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
6462# elif defined(LDBL_INF)
6463INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
6464# elif defined(INFINITY)
6465INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6466# elif defined(INF)
6467INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6468# else
6469INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
6470# endif
6471# else
6472# if defined(DBL_INFINITY)
6473INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
6474# elif defined(DBL_INF)
6475INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
6476# elif defined(INFINITY) /* C99 */
6477INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
6478# elif defined(INF)
6479INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
6480# else
6481INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
6482# endif
6483# endif
6484# endif
6485
6486# ifdef USE_QUADMATH
6487/* Cannot use nanq("0") for PL_nan because not a compile-time
6488 * constant. */
6489INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
6490# elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
6491INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
6492# elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
6493INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
6494# else
6495# if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
6496# if defined(LDBL_NAN)
6497INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
6498# elif defined(LDBL_QNAN)
6499INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
6500# elif defined(NAN)
6501INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6502# else
6503INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
6504# endif
6505# else
6506# if defined(DBL_NAN)
6507INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
6508# elif defined(DBL_QNAN)
6509INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
6510# elif defined(NAN) /* C99 */
6511INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
6512# else
6513INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
6514# endif
6515# endif
6516# endif
6517
6518GCC_DIAG_RESTORE
6519
6520#else
6521
6522INFNAN_NV_U8_DECL PL_inf;
6523INFNAN_NV_U8_DECL PL_nan;
6524
6525#endif
6526
6527/* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
6528 * we will define NV_INF/NV_NAN as the nv part of the global const
6529 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
6530 * might not be a compile-time constant, in which case it cannot be
6531 * used to initialize PL_inf/PL_nan above. */
6532#ifndef NV_INF
6533# define NV_INF PL_inf.nv
6534#endif
6535#ifndef NV_NAN
6536# define NV_NAN PL_nan.nv
6537#endif
6538
5c255b3b
JH		 6539/* NaNs (not-a-numbers) can carry payload bits, in addition to
6540 * "nan-ness". Part of the payload is the quiet/signaling bit.
6541 * To back up a bit (harhar):
6542 *
6543 * For IEEE 754 64-bit formats [1]:
6544 *
6545 * s 000 (mantissa all-zero) zero
6546 * s 000 (mantissa non-zero) subnormals (denormals)
6547 * s 001 ... 7fe normals
6548 * s 7ff q nan
6549 *
6550 * For IEEE 754 128-bit formats:
6551 *
6552 * s 0000 (mantissa all-zero) zero
6553 * s 0000 (mantissa non-zero) subnormals (denormals)
6554 * s 0001 ... 7ffe normals
6555 * s 7fff q nan
6556 *
6557 * [1] this looks like big-endian, but applies equally to little-endian.
6558 *
6559 * s = Sign bit. Yes, zeros and nans can have negative sign,
6560 * the interpretation is application-specific.
6561 *
6562 * q = Quietness bit, the interpretation is platform-specific.
453b60f1 6563 * Most platforms have the most significant bit being one
5c255b3b
JH		 6564 * meaning quiet, but some (older mips, hppa) have the msb
6565 * being one meaning signaling. Note that the above means
6566 * that on most platforms there cannot be signaling nan with
453b60f1
JH		 6567 * zero payload because that is identical with infinity;
6568 * while conversely on older mips/hppa there cannot be a quiet nan
6569 * because that is identical with infinity.
6570 *
6571 * Moreover, whether there is any behavioral difference
6572 * between quiet and signaling NaNs, depends on the platform.
5c255b3b
JH		 6573 *
6574 * x86 80-bit extended precision is different, the mantissa bits:
6575 *
6576 * 63 62 61 30387+ pre-387 visual c
6577 * -------- ---- -------- --------
6578 * 0 0 0 invalid infinity
6579 * 0 0 1 invalid snan
6580 * 0 1 0 invalid snan
6581 * 0 1 1 invalid snan
6582 * 1 0 0 infinity snan 1.#INF
6583 * 1 0 1 snan 1.#SNAN
6584 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
6585 * 1 1 1 qnan 1.#QNAN
6586 *
6587 * This means that in this format there are 61 bits available
6588 * for the nan payload.
6589 *
3bbe6a60
JH		 6590 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
6591 * simply cannot preserve the bit. You can either use the 80-bit
6592 * extended precision (long double, -Duselongdouble), or use x86-64.
6593 *
453b60f1
JH		 6594 * In all platforms, the payload bytes (and bits, some of them are
6595 * often in a partial byte) themselves can be either all zero (x86),
6596 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
6597 * or in a double-double, the first half of the payload can follow the
6598 * native double, while in the second half the payload can be all
6599 * zeros. (Therefore the mask for payload bits is not necessarily
6600 * identical to bit complement of the NaN.) Another way of putting
6601 * this: the payload for the default NaN might not be zero.
6602 *
6603 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
6604 * being 'packaged' in either 12 or 16 bytes) can be whatever random
6605 * garbage.
6606 *
6607 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
6608 * On normal floats, the sign bit being on means negative. But this may,
6609 * or may not, be reverted on NaNs: in other words, the default NaN might
6610 * have the sign bit on, and therefore look like negative if you look
6611 * at it at the bit level.
6612 *
6613 * NaN payloads are not propagated even on copies, or in arithmetics.
6614 * They *might* be, according to some rules, on your particular
6615 * cpu/os/compiler/libraries, but no guarantees.
6616 *
6617 * To summarize, on most platforms, and for 64-bit doubles
6618 * (using big-endian ordering here):
6619 *
6620 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
6621 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
6622 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
6623 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
6624 *
6625 * The C99 nan() is supposed to generate *quiet* NaNs.
6626 *
6627 * Note the asymmetry:
6628 * The 7FF0000000000000 is positive infinity,
6629 * the FFF0000000000000 is negative infinity.
6630 */
6631
6632/* NVMANTBITS is the number of _real_ mantissa bits in an NV.
5a14060a
JH		 6633 * For the standard IEEE 754 fp this number is usually one less that
6634 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
6635 * real. For the 80-bit extended precision formats (x86*), the number
6636 * of mantissa bits... depends. For normal floats, it's 64. But for
6637 * the inf/nan, it's different (zero for inf, 61 for nan).
6638 * NVMANTBITS works for normal floats. */
6639
6640/* We do not want to include the quiet/signaling bit. */
6641#define NV_NAN_BITS (NVMANTBITS - 1)
5c255b3b 6642
f37aa828
JH		 6643#if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6644# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6645# define NV_NAN_QS_BYTE_OFFSET 13
6646# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6647# define NV_NAN_QS_BYTE_OFFSET 2
6648# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6649# define NV_NAN_QS_BYTE_OFFSET 7
6650# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6651# define NV_NAN_QS_BYTE_OFFSET 2
1f02ab1d 6652# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
f37aa828 6653# define NV_NAN_QS_BYTE_OFFSET 13
1f02ab1d 6654# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
f37aa828 6655# define NV_NAN_QS_BYTE_OFFSET 1
1f02ab1d
JH		 6656# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6657# define NV_NAN_QS_BYTE_OFFSET 9
6658# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6659# define NV_NAN_QS_BYTE_OFFSET 6
f37aa828
JH		 6660# else
6661# error "Unexpected long double format"
6662# endif
6663#else
6664# ifdef USE_QUADMATH
6665# ifdef NV_LITTLE_ENDIAN
6666# define NV_NAN_QS_BYTE_OFFSET 13
6667# elif defined(NV_BIG_ENDIAN)
6668# define NV_NAN_QS_BYTE_OFFSET 2
6669# else
6670# error "Unexpected quadmath format"
6671# endif
6672# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6673# define NV_NAN_QS_BYTE_OFFSET 2
6674# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6675# define NV_NAN_QS_BYTE_OFFSET 1
6676# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6677# define NV_NAN_QS_BYTE_OFFSET 6
6678# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6679# define NV_NAN_QS_BYTE_OFFSET 1
6680# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6681# define NV_NAN_QS_BYTE_OFFSET 13
6682# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6683# define NV_NAN_QS_BYTE_OFFSET 2
6684# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6685# define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
6686# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6687# define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
6688# else
a7157111
JH		 6689/* For example the VAX formats should never
6690 * get here because they do not have NaN. */
f37aa828
JH		 6691# error "Unexpected double format"
6692# endif
6693#endif
6694/* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
6695#define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
6696/* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
6697 * for the quiet/signaling */
6698#if defined(USE_LONG_DOUBLE) && \
6699 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6700 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
6701# define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
6702#elif defined(USE_LONG_DOUBLE) && \
1f02ab1d
JH		 6703 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \
6704 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \
6705 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \
6706 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE)
5a14060a 6707# define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
f37aa828 6708#else
5a14060a 6709# define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
f37aa828
JH		 6710#endif
6711#define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
6712/* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
6713 * (bytes ordered big-endianly) for the quiet/signaling bit
6714 * for the quiet/signaling */
6715#define NV_NAN_QS_BIT_OFFSET \
6716 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
8122f9aa
JH		 6717/* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
6718 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
6719 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
f37aa828
JH		 6720#define NV_NAN_QS_QUIET \
6721 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
6722#define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
6723#define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
6724/* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
6725 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
6726 * Note however that these do not check whether the nvp is a NaN. */
6727#define NV_NAN_IS_QUIET(nvp) \
6728 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
6729#define NV_NAN_IS_SIGNALING(nvp) \
6730 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
6731#define NV_NAN_SET_QUIET(nvp) \
6732 (NV_NAN_QS_QUIET ? \
6733 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
6734 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
6735#define NV_NAN_SET_SIGNALING(nvp) \
6736 (NV_NAN_QS_QUIET ? \
6737 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
6738 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
6739#define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
6740
d3137b5f
JH		 6741/* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
6742 *
6743 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
6744 * 0xFF means "don't go here".*/
6745
6746/* Shorthands to avoid typoses. */
1f02ab1d
JH		 6747#define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \
6748 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0
6749#define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \
6750 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
d3137b5f
JH		 6751#define NV_NAN_PAYLOAD_PERM_0_TO_7 \
6752 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
6753#define NV_NAN_PAYLOAD_PERM_7_TO_0 \
6754 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6755#define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
6756 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
6757 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
6758#define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
6759 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6760 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
6761#define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
6762 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6763 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6764#define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
6765 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
6766 NV_NAN_PAYLOAD_PERM_7_TO_0
6767#define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
6768 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
6769#define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
6770 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
6771#define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
6772 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6773#define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
6774 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6775
6776#if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6777# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6778# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6779# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6780# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6781# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6782# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6783# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
a7ab4d96
JH		 6784# if LONG_DOUBLESIZE == 10
6785# define NV_NAN_PAYLOAD_MASK \
6786 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6787 0x00, 0x00
6788# define NV_NAN_PAYLOAD_PERM \
6789 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
6790# elif LONG_DOUBLESIZE == 12
d3137b5f
JH		 6791# define NV_NAN_PAYLOAD_MASK \
6792 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6793 0x00, 0x00, 0x00, 0x00
6794# define NV_NAN_PAYLOAD_PERM \
6795 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
6796# elif LONG_DOUBLESIZE == 16
6797# define NV_NAN_PAYLOAD_MASK \
6798 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6799 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6800# define NV_NAN_PAYLOAD_PERM \
6801 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6802 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6803# else
6804# error "Unexpected x86 80-bit little-endian long double format"
6805# endif
6806# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
a7ab4d96
JH		 6807# if LONG_DOUBLESIZE == 10
6808# define NV_NAN_PAYLOAD_MASK \
6809 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6810 0xff, 0xff
6811# define NV_NAN_PAYLOAD_PERM \
6812 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
6813# elif LONG_DOUBLESIZE == 12
d3137b5f
JH		 6814# define NV_NAN_PAYLOAD_MASK \
6815 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6816 0xff, 0xff, 0x00, 0x00
6817# define NV_NAN_PAYLOAD_PERM \
6818 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
6819# elif LONG_DOUBLESIZE == 16
6820# define NV_NAN_PAYLOAD_MASK \
6821 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6822 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6823# define NV_NAN_PAYLOAD_PERM \
6824 NV_NAN_PAYLOAD_PERM_7_TO_0, \
6825 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6826# else
a7ab4d96 6827# error "Unexpected x86 80-bit big-endian long double format"
d3137b5f 6828# endif
1f02ab1d
JH		 6829# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE
6830/* For double-double we assume only the first double (in LE or BE terms)
6831 * is used for NaN. */
d3137b5f 6832# define NV_NAN_PAYLOAD_MASK \
1f02ab1d 6833 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
d3137b5f 6834# define NV_NAN_PAYLOAD_PERM \
1f02ab1d
JH		 6835 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6836# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE
d3137b5f
JH		 6837# define NV_NAN_PAYLOAD_MASK \
6838 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6839# define NV_NAN_PAYLOAD_PERM \
6840 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
1f02ab1d
JH		 6841# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE
6842# define NV_NAN_PAYLOAD_MASK \
6843 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6844# define NV_NAN_PAYLOAD_PERM \
6845 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6846# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE
6847# define NV_NAN_PAYLOAD_MASK \
6848 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6849# define NV_NAN_PAYLOAD_PERM \
6850 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
d3137b5f
JH		 6851# else
6852# error "Unexpected long double format"
6853# endif
6854#else
6855# ifdef USE_QUADMATH /* quadmath is not long double */
6856# ifdef NV_LITTLE_ENDIAN
6857# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6858# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6859# elif defined(NV_BIG_ENDIAN)
6860# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6861# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6862# else
6863# error "Unexpected quadmath format"
6864# endif
6865# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6866# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
6867# define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
6868# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6869# define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
6870# define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
6871# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6872# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6873# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6874# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6875# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6876# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6877# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6878# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6879# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6880# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6881# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6882# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6883# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6884# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
6885# define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
6886# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6887# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
6888# define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
6889# else
6890# error "Unexpected double format"
6891# endif
6892#endif
a7157111
JH		 6893
6894#endif /* DOUBLE_HAS_NAN */
6895
21553840 6896
10edeb5d
JH		 6897/*
6898
6899 (KEEP THIS LAST IN perl.h!)
6900
6901 Mention
d460ef45 6902
43999f95 6903 NV_PRESERVES_UV
fe749a9f 6904
fe749a9f
JH		 6905 HAS_MKSTEMP
6906 HAS_MKSTEMPS
6907 HAS_MKDTEMP
6908
49dabb45
JH		 6909 HAS_GETCWD
6910
d59b5429 6911 HAS_MMAP
fe749a9f
JH		 6912 HAS_MPROTECT
6913 HAS_MSYNC
1e8c3fde 6914 HAS_MADVISE
fe749a9f
JH		 6915 HAS_MUNMAP
6916 I_SYSMMAN
6917 Mmap_t
6918
6b4667fc
A		 6919 NVef
6920 NVff
6921 NVgf
6922
4e0554ec 6923 HAS_UALARM
2d736872 6924 HAS_USLEEP
4e0554ec
JH		 6925
6926 HAS_SETITIMER
6927 HAS_GETITIMER
6928
6929 HAS_SENDMSG
6930 HAS_RECVMSG
6931 HAS_READV
6932 HAS_WRITEV
6933 I_SYSUIO
6934 HAS_STRUCT_MSGHDR
6935 HAS_STRUCT_CMSGHDR
6936
2765b840 6937 HAS_NL_LANGINFO
0a7020c9 6938
ae0e3d3b 6939 HAS_DIRFD
2765b840 6940
10edeb5d 6941 so that Configure picks them up.
ab3bbdeb 6942
10edeb5d 6943 (KEEP THIS LAST IN perl.h!)
3df15adc 6944
10edeb5d 6945*/
3df15adc 6946
85e6fe83 6947#endif /* Include guard */
e9a8c099
MHM		 6948
6949/*
14d04a33 6950 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 6951 */
Unnamed repository; edit this file 'description' to name the repository.