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a0d0e21e 1/* perl.h
a687059c 2 *
1129b882 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
5cd3f21a 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
a687059c 5 *
352d5a3a
LW		 6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8d063cd8 8 *
8d063cd8 9 */
d6376244 10
85e6fe83
LW		 11#ifndef H_PERL
12#define H_PERL 1
8d063cd8 13
760ac839
LW		 14#ifdef PERL_FOR_X2P
15/*
d460ef45 16 * This file is being used for x2p stuff.
760ac839 17 * Above symbol is defined via -D in 'x2p/Makefile.SH'
d460ef45 18 * Decouple x2p stuff from some of perls more extreme eccentricities.
760ac839 19 */
55497cff 20#undef MULTIPLICITY
760ac839
LW		 21#undef USE_STDIO
22#define USE_STDIO
23#endif /* PERL_FOR_X2P */
24
d460ef45 25#ifdef PERL_MICRO
12ae5dfc
JH		 26# include "uconfig.h"
27#else
611cf957 28# include "config.h"
12ae5dfc 29#endif
0cb96387 30
7dc3eb73 31/* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined
9267464d 32 * because the __STDC_VERSION__ became a thing only with C90. Therefore,
7dc3eb73
JH		 33 * with gcc, HAS_C99 will never become true as long as we use -std=c89.
34
35 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true,
36 * all the C99 features are there and are correct. */
9267464d
JH		 37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
38 defined(_STDC_C99)
86a3cabf 39# define HAS_C99 1
86a3cabf
JH		 40#endif
41
2c2d71f5
JH		 42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
ac6bedea
JH		 45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
6f4183fe
GS		 51# define MULTIPLICITY
52# endif
53#endif
54
27da23d5
JH		 55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
27da23d5
JH		 61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
97aff369
JH		 67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
026fd48b
GH		 73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
27da23d5
JH		 79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
27da23d5
JH		 86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
739a0b84
NC		 92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
27da23d5
JH		 94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
10bc17b6
JH		 103# define USE_REENTRANT_API
104#endif
105
ac6bedea
JH		 106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
9ea40801
SH		 108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
cf5a8da6
MHM		 113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
17a6c8e3
AD		 126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
27da23d5
JH		 138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
27da23d5
JH		 143# else
144# define PERL_GET_VARS() PL_VarsPtr
145# endif
146# endif
147#endif
148
f0e5c859
DD		 149/* this used to be off by default, now its on, see perlio.h */
150#define PERLIO_FUNCS_CONST
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
27da23d5
JH		 153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
3db8f154
MB		 161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
27da23d5
JH		 172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
894356b3
GS		 181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
4373e329
AL		 184# define pTHX_5 6
185# define pTHX_6 7
a3b680e6
AL		 186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
e8dda941
JD		 190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
c5be433b
GS		 195#endif
196
76e3520e 197#define STATIC static
16c91539
BM		 198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
1d583055
GS		 209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
52a21eb3
DM		 224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
f9f4320a
YO		 226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
f8149455
YO		 230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
16c91539 234 if(prog) RX_ENGINE(prog)->free(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
2fdbfb4d
AB		 241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
192b9cd1
AB		 247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
192b9cd1
AB		 250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
192b9cd1
AB		 253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
192b9cd1
AB		 256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
192b9cd1
AB		 259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
192b9cd1
AB		 262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
192b9cd1
AB		 265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
192b9cd1
AB		 268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
192b9cd1
AB		 271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
f8149455
YO		 280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
a20207d7
YO		 289
290
5ba4cab2
SH		 291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
SH		 297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
5b2bd0a5
AMS		 308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
f7a9299a 312# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
349b520e
DM		 319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
a730e3f2
JH		 321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c
AL		 330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
96a5add6
AL		 337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
24e7ff4e
JH		 342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
b469f1e0
JH		 356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
ffea512f
JH		 366 *
367 * But sometimes you just want to ignore the return value, e.g. on
b469f1e0
JH		 368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
b469f1e0
JH		 371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
b469f1e0
JH		 375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
ffea512f
JH		 379 */
380#ifndef PERL_UNUSED_RESULT
b469f1e0
JH		 381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
ffea512f
JH		 383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
b56aac20
DM		 388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f
JH		 399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
6ab56f1e
JH		 406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
c1d6452f
JH		 408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
b56aac20
DM		 411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
c1d6452f
JH		 415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
b56aac20
DM		 419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
8ce6f80a
JH		 421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
b56aac20
DM		 423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
bafdc25d
NC		 426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
7db66e12
CB		 431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
e8dda941
JD		 439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
0cb96387
GS		 441# define pTHX void
442# define pTHX_
0cb96387
GS		 443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
0cb96387
GS		 446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
894356b3
GS		 448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
3d42dc86
RGS		 452# define pTHX_5 5
453# define pTHX_6 6
a3b680e6
AL		 454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
0cb96387
GS		 458#endif
459
27da23d5
JH		 460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
b4f7f263
GS		 464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS		 466# define pTHXo pTHX
467# define pTHXo_ pTHX_
0cb96387
GS		 468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
0cb96387
GS		 472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
GS		 477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
1de7c2ac
GS		 482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
27da23d5
JH		 486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH		 492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS		 497#endif
498
27da23d5
JH		 499/* Some platforms require marking function declarations
500 * for them to be exportable. Used in perlio.h, proto.h
501 * is handled either by the makedef.pl or by defining the
502 * PERL_CALLCONV to be something special. See also the
503 * definition of XS() in XSUB.h. */
504#ifndef PERL_EXPORT_C
a0c21aa1
JH		 505# ifdef __cplusplus
506# define PERL_EXPORT_C extern "C"
507# else
508# define PERL_EXPORT_C extern
509# endif
27da23d5
JH		 510#endif
511#ifndef PERL_XS_EXPORT_C
a0c21aa1
JH		 512# ifdef __cplusplus
513# define PERL_XS_EXPORT_C extern "C"
514# else
515# define PERL_XS_EXPORT_C
516# endif
27da23d5
JH		 517#endif
518
5b692037
JH		 519#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
520# ifndef PERL_USE_GCC_BRACE_GROUPS
521# define PERL_USE_GCC_BRACE_GROUPS
522# endif
523#endif
524
728e2803 525/*
526 * STMT_START { statements; } STMT_END;
527 * can be used as a single statement, as in
528 * if (x) STMT_START { ... } STMT_END; else ...
529 *
530 * Trying to select a version that gives no warnings...
531 */
532#if !(defined(STMT_START) && defined(STMT_END))
5b692037 533# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 534# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803 535# define STMT_END )
536# else
728e2803 537# define STMT_START do
538# define STMT_END while (0)
728e2803 539# endif
540#endif
541
d6f9c181
JH		 542#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
543# define BYTEORDER 0x1234
79072805
LW		 544#endif
545
546/* Overall memory policy? */
547#ifndef CONSERVATIVE
548# define LIBERAL 1
549#endif
550
8ada0baa
JH		 551#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
552#define ASCIIish
553#else
554#undef ASCIIish
555#endif
556
79072805
LW		 557/*
558 * The following contortions are brought to you on behalf of all the
559 * standards, semi-standards, de facto standards, not-so-de-facto standards
560 * of the world, as well as all the other botches anyone ever thought of.
561 * The basic theory is that if we work hard enough here, the rest of the
562 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
563 */
ac58e20f 564
ee0007ab 565/* define this once if either system, instead of cluttering up the src */
7c458fae 566#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW		 567#define DOSISH 1
568#endif
569
739a0b84 570#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW		 571# define STANDARD_C 1
572#endif
573
8d87852b 574#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745 575# define DONT_DECLARE_STD 1
576#endif
577
352d5a3a 578#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 579# define VOL volatile
663a0e37 580#else
79072805 581# define VOL
663a0e37
LW		 582#endif
583
284167a5
S		 584/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
585 * you get a perl without taint support, but doubtlessly with a lesser
586 * degree of support. Do not do so unless you know exactly what it means
587 * technically, have a good reason to do so, and know exactly how the
588 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
589 * a potential security risk due to flat out ignoring the security-relevant
590 * taint flags. This being said, a perl without taint support compiled in
591 * has marginal run-time performance benefits.
592 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
593 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
594 * silently ignores -t/-T instead of throwing an exception.
053a3618
S		 595 *
596 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 597 * voids your nonexistent warranty!
284167a5 598 */
dc6d7f5c 599#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
S		 600# define NO_TAINT_SUPPORT 1
601#endif
602
603/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
604 * operations into no-ops for a very modest speed-up. Enable only if you
605 * know what you're doing: tests and CPAN modules' tests are bound to fail.
606 */
dc6d7f5c 607#ifdef NO_TAINT_SUPPORT
284167a5
S		 608# define TAINT NOOP
609# define TAINT_NOT NOOP
610# define TAINT_IF(c) NOOP
611# define TAINT_ENV() NOOP
612# define TAINT_PROPER(s) NOOP
613# define TAINT_set(s) NOOP
614# define TAINT_get 0
615# define TAINTING_get 0
616# define TAINTING_set(s) NOOP
617# define TAINT_WARN_get 0
618# define TAINT_WARN_set(s) NOOP
619#else
620# define TAINT (PL_tainted = TRUE)
621# define TAINT_NOT (PL_tainted = FALSE)
2439e033
S		 622# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
623# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
624# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
S		 625# define TAINT_set(s) (PL_tainted = (s))
626# define TAINT_get (PL_tainted)
627# define TAINTING_get (PL_tainting)
628# define TAINTING_set(s) (PL_tainting = (s))
629# define TAINT_WARN_get (PL_taint_warn)
630# define TAINT_WARN_set(s) (PL_taint_warn = (s))
631#endif
a687059c 632
20be6587
DM		 633/* flags used internally only within pp_subst and pp_substcont */
634#ifdef PERL_CORE
635# define SUBST_TAINT_STR 1 /* string tainted */
636# define SUBST_TAINT_PAT 2 /* pattern tainted */
637# define SUBST_TAINT_REPL 4 /* replacement tainted */
638# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
639# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
640#endif
641
d460ef45 642/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de 643 defines move there? If so, I could simplify this a lot. --AD 9/96.
644*/
645/* Process group stuff changed from traditional BSD to POSIX.
646 perlfunc.pod documents the traditional BSD-style syntax, so we'll
647 try to preserve that, if possible.
648*/
649#ifdef HAS_SETPGID
650# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 651#else
a6e633de 652# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
653# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
654# else
655# ifdef HAS_SETPGRP2 /* DG/UX */
656# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
657# endif
658# endif
659#endif
660#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
661# define HAS_SETPGRP /* Well, effectively it does . . . */
662#endif
663
664/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
665 our life easier :-) so we'll try it.
666*/
667#ifdef HAS_GETPGID
668# define BSD_GETPGRP(pid) getpgid((pid))
669#else
670# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
671# define BSD_GETPGRP(pid) getpgrp((pid))
672# else
673# ifdef HAS_GETPGRP2 /* DG/UX */
674# define BSD_GETPGRP(pid) getpgrp2((pid))
675# endif
676# endif
677#endif
678#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
679# define HAS_GETPGRP /* Well, effectively it does . . . */
680#endif
681
d460ef45 682/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de 683 have different behaviors, but perl.h used to define USE_BSDPGRP
684 (prior to 5.003_05) so some extension might depend on it.
685*/
686#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
687# ifndef USE_BSDPGRP
688# define USE_BSDPGRP
689# endif
663a0e37
LW		 690#endif
691
486ec47a 692/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH		 693 pthread.h must be included before all other header files.
694*/
3db8f154 695#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH		 696# include <pthread.h>
697#endif
698
58ab9e8b 699#include <sys/types.h>
663a0e37 700
760ac839
LW		 701#ifdef __cplusplus
702# ifndef I_STDARG
703# define I_STDARG 1
704# endif
705#endif
706
c7925a5e
DD		 707/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
708 which is included from stdarg.h. Bad definition not present in SD 2008
709 SDK headers. wince.h is not yet included, so we cant fix this from there
710 since by then MB_CUR_MAX will be defined from stdlib.h.
711 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
712 since cewchar.h can't be included this early */
713#if defined(UNDER_CE) && (_MSC_VER < 1300)
714# define MB_CUR_MAX 1
715#endif
760ac839
LW		 716#ifdef I_STDARG
717# include <stdarg.h>
718#else
719# ifdef I_VARARGS
720# include <varargs.h>
721# endif
722#endif
723
27db2737
JH		 724#ifdef I_STDINT
725# include <stdint.h>
726#endif
727
fe14fcc3 728#include <ctype.h>
a0d0e21e
LW		 729
730#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
731#undef METHOD
a0d0e21e
LW		 732#endif
733
12ae5dfc
JH		 734#ifdef PERL_MICRO
735# define NO_LOCALE
736#endif
737
4633a7c4 738#ifdef I_LOCALE
36477c24 739# include <locale.h>
4633a7c4
LW		 740#endif
741
36477c24 742#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
743# define USE_LOCALE
ccd65d51
KW		 744# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
745 capability */
36477c24 746# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
747 && defined(HAS_STRXFRM)
748# define USE_LOCALE_COLLATE
749# endif
750# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
751# define USE_LOCALE_CTYPE
752# endif
753# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
754# define USE_LOCALE_NUMERIC
755# endif
fa9b773e
KW		 756# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
757# define USE_LOCALE_MESSAGES
758# endif
759# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
760# define USE_LOCALE_MONETARY
761# endif
56e45410
KW		 762# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
763# define USE_LOCALE_TIME
764# endif
b385bb4d
KW		 765# ifndef WIN32 /* No wrapper except on Windows */
766# define my_setlocale(a,b) setlocale(a,b)
767# endif
36477c24 768#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 769
3e669301
KW		 770/* Is $^ENCODING set, or are we under the encoding pragma? */
771#define IN_ENCODING UNLIKELY(PL_encoding \
772 || (PL_lex_encoding && _get_encoding() != NULL))
47e13f24 773
fe14fcc3 774#include <setjmp.h>
79072805 775
a0d0e21e 776#ifdef I_SYS_PARAM
79072805
LW		 777# ifdef PARAM_NEEDS_TYPES
778# include <sys/types.h>
779# endif
780# include <sys/param.h>
352d5a3a 781#endif
79072805 782
ce3470dc
AD		 783/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
784 value something like 199306. This may be useful if no more-specific
785 feature test is available.
786*/
787#if defined(BSD)
788# ifndef BSDish
789# define BSDish
790# endif
791#endif
792
79072805 793/* Use all the "standard" definitions? */
a0d0e21e 794#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 795# include <stdlib.h>
ff68c719 796#endif
03a14243 797
3f270f98
JH		 798/* If this causes problems, set i_unistd=undef in the hint file. */
799#ifdef I_UNISTD
800# include <unistd.h>
801#endif
802
de8ca8af
NT		 803/* for WCOREDUMP */
804#ifdef I_SYS_WAIT
805# include <sys/wait.h>
806#endif
807
9969cdde 808#ifdef __SYMBIAN32__
27da23d5
JH		 809# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
810#endif
811
21e89b5f 812#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 813EXTERN_C int syscall(int, ...);
2ef53570
JH		 814#endif
815
21e89b5f 816#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 817EXTERN_C int usleep(unsigned int);
2ef53570
JH		 818#endif
819
1109a392
MHM		 820#ifdef PERL_CORE
821
822/* macros for correct constant construction */
823# if INTSIZE >= 2
824# define U16_CONST(x) ((U16)x##U)
825# else
826# define U16_CONST(x) ((U16)x##UL)
827# endif
828
829# if INTSIZE >= 4
830# define U32_CONST(x) ((U32)x##U)
831# else
832# define U32_CONST(x) ((U32)x##UL)
833# endif
834
835# ifdef HAS_QUAD
836# if INTSIZE >= 8
837# define U64_CONST(x) ((U64)x##U)
838# elif LONGSIZE >= 8
839# define U64_CONST(x) ((U64)x##UL)
840# elif QUADKIND == QUAD_IS_LONG_LONG
841# define U64_CONST(x) ((U64)x##ULL)
52865553
SH		 842# elif QUADKIND == QUAD_IS___INT64
843# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM		 844# else /* best guess we can make */
845# define U64_CONST(x) ((U64)x##UL)
846# endif
847# endif
848
849/* byte-swapping functions for big-/little-endian conversion */
850# define _swab_16_(x) ((U16)( \
851 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
852 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
853
854# define _swab_32_(x) ((U32)( \
855 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
856 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
857 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
858 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
859
860# ifdef HAS_QUAD
861# define _swab_64_(x) ((U64)( \
862 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
863 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
864 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
865 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
866 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
867 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
868 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
869 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
870# endif
871
9c17f24a
NC		 872/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
873 at least on FreeBSD. YMMV, so experiment. */
874#ifndef PERL_ARENA_SIZE
875#define PERL_ARENA_SIZE 4080
876#endif
877
ccb2c8b8 878/* Maximum level of recursion */
2b9dff67
RGS		 879#ifndef PERL_SUB_DEPTH_WARN
880#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS		 881#endif
882
1109a392
MHM		 883#endif /* PERL_CORE */
884
bdf3085f
NC		 885/* We no longer default to creating a new SV for GvSV.
886 Do this before embed. */
887#ifndef PERL_CREATE_GVSV
7459f06b
NC		 888# ifndef PERL_DONT_CREATE_GVSV
889# define PERL_DONT_CREATE_GVSV
890# endif
bdf3085f
NC		 891#endif
892
ca0c25f6
NC		 893#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
894#define PERL_USES_PL_PIDSTATUS
895#endif
896
739a0b84 897#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS		 898#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
899#endif
900
c31fac66
GS		 901#define MEM_SIZE Size_t
902
1936d2a7
NC		 903/* Round all values passed to malloc up, by default to a multiple of
904 sizeof(size_t)
905*/
906#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
907#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
908#endif
909
f1200559
WH		 910/* sv_grow() will expand strings by at least a certain percentage of
911 the previously *used* length to avoid excessive calls to realloc().
912 The default is 25% of the current length.
913*/
914#ifndef PERL_STRLEN_EXPAND_SHIFT
915# define PERL_STRLEN_EXPAND_SHIFT 2
916#endif
917
3800c318 918#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS		 919# include <stddef.h>
920# define STRUCT_OFFSET(s,m) offsetof(s,m)
921#else
922# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF		 923#endif
924
925/* ptrdiff_t is C11, so undef it under pedantic builds */
926#ifdef PERL_GCC_PEDANTIC
927# undef HAS_PTRDIFF_T
51371543
GS		 928#endif
929
9969cdde 930#ifndef __SYMBIAN32__
27da23d5
JH		 931# if defined(I_STRING) || defined(__cplusplus)
932# include <string.h>
933# else
934# include <strings.h>
935# endif
51371543
GS		 936#endif
937
55497cff 938/* This comes after <stdlib.h> so we don't try to change the standard
939 * library prototypes; we'll use our own in proto.h instead. */
03a14243 940
4633a7c4 941#ifdef MYMALLOC
86058a2d 942# ifdef PERL_POLLUTE_MALLOC
ee13e175 943# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS		 944# define Perl_malloc malloc
945# define Perl_calloc calloc
946# define Perl_realloc realloc
947# define Perl_mfree free
ee13e175 948# endif
86058a2d
GS		 949# else
950# define EMBEDMYMALLOC /* for compatibility */
951# endif
827e134a 952
651b9576
GS		 953# define safemalloc Perl_malloc
954# define safecalloc Perl_calloc
955# define saferealloc Perl_realloc
956# define safefree Perl_mfree
22f7c9c9
JH		 957# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
958 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
959 code; \
960 } STMT_END
961# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
962 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
963# define panic_write2(s) write(2, s, strlen(s))
964# define CHECK_MALLOC_TAINT(newval) \
965 CHECK_MALLOC_TOO_LATE_FOR_( \
966 if (newval) { \
acfd4d8e 967 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 968 exit(1); })
22f7c9c9 969# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 970 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH		 971 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
972 }} STMT_END;
f2517201
GS		 973#else /* MYMALLOC */
974# define safemalloc safesysmalloc
975# define safecalloc safesyscalloc
976# define saferealloc safesysrealloc
977# define safefree safesysfree
22f7c9c9
JH		 978# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
979# define CHECK_MALLOC_TAINT(newval) ((void)0)
980# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 981#endif /* MYMALLOC */
4633a7c4 982
fe13d51d 983/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 984#define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what)
22f7c9c9
JH		 985#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
986#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
987#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
988
a0d0e21e
LW		 989#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
990#define strchr index
991#define strrchr rindex
992#endif
993
16d20bd9
AD		 994#ifdef I_MEMORY
995# include <memory.h>
996#endif
997
fe14fcc3 998#ifdef HAS_MEMCPY
85e6fe83 999# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 1000# ifndef memcpy
20ce7b12 1001 extern char * memcpy (char*, char*, int);
ee0007ab
LW		 1002# endif
1003# endif
1004#else
1005# ifndef memcpy
1006# ifdef HAS_BCOPY
1007# define memcpy(d,s,l) bcopy(s,d,l)
1008# else
1009# define memcpy(d,s,l) my_bcopy(s,d,l)
1010# endif
1011# endif
1012#endif /* HAS_MEMCPY */
fe14fcc3 1013
ee0007ab 1014#ifdef HAS_MEMSET
85e6fe83 1015# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1016# ifndef memset
20ce7b12 1017 extern char *memset (char*, int, int);
ee0007ab
LW		 1018# endif
1019# endif
ee0007ab 1020#else
12ae5dfc 1021# undef memset
fc36a67e 1022# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 1023#endif /* HAS_MEMSET */
1024
85e6fe83 1025#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1026# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 1027# define memmove(d,s,l) bcopy(s,d,l)
1028# else
2304df62 1029# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1030# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1031# else
79072805 1032# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1033# endif
352d5a3a 1034# endif
d9d8d8de 1035#endif
ee0007ab 1036
36477c24 1037#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1038# undef HAS_MEMCMP
1039#endif
1040
1041#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1042# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1043# ifndef memcmp
20ce7b12 1044 extern int memcmp (char*, char*, int);
ee0007ab
LW		 1045# endif
1046# endif
1047#else
1048# ifndef memcmp
ecfc5424 1049# define memcmp my_memcmp
352d5a3a 1050# endif
36477c24 1051#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1052
fc36a67e 1053#ifndef memzero
c635e13b 1054# ifdef HAS_MEMSET
1055# define memzero(d,l) memset(d,0,l)
79072805 1056# else
c635e13b 1057# ifdef HAS_BZERO
1058# define memzero(d,l) bzero(d,l)
79072805 1059# else
fc36a67e 1060# define memzero(d,l) my_bzero(d,l)
79072805
LW		 1061# endif
1062# endif
d9d8d8de 1063#endif
378cc40b 1064
2f42fcb0 1065#ifndef PERL_MICRO
0f27ced1
JH		 1066#ifndef memchr
1067# ifndef HAS_MEMCHR
1068# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1069# endif
1070#endif
2f42fcb0 1071#endif
0f27ced1 1072
36477c24 1073#ifndef HAS_BCMP
1074# ifndef bcmp
1075# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1076# endif
36477c24 1077#endif /* !HAS_BCMP */
378cc40b 1078
ae986130 1079#ifdef I_NETINET_IN
79072805 1080# include <netinet/in.h>
ae986130
LW		 1081#endif
1082
28e8609d
JH		 1083#ifdef I_ARPA_INET
1084# include <arpa/inet.h>
1085#endif
1086
1aef975c 1087#ifdef I_SYS_STAT
84902520 1088# include <sys/stat.h>
1aef975c 1089#endif
79072805 1090
287a962e
JD		 1091/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1092 This definition should ideally go into win32/win32.h, but S_IFIFO is
1093 used later here in perl.h before win32/win32.h is being included. */
1094#if !defined(S_IFIFO) && defined(_S_IFIFO)
1095# define S_IFIFO _S_IFIFO
1096#endif
1097
cc3315ba 1098/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW		 1099 like UTekV) are broken, sometimes giving false positives. Undefine
1100 them here and let the code below set them to proper values.
1101
1102 The ghs macro stands for GreenHills Software C-1.8.5 which
1103 is the C compiler for sysV88 and the various derivatives.
1104 This header file bug is corrected in gcc-2.5.8 and later versions.
1105 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1106
cc3315ba 1107#if defined(m88k) && defined(ghs)
79072805
LW		 1108# undef S_ISDIR
1109# undef S_ISCHR
1110# undef S_ISBLK
1111# undef S_ISREG
1112# undef S_ISFIFO
1113# undef S_ISLNK
ee0007ab 1114#endif
135863df 1115
663a0e37
LW		 1116#ifdef I_TIME
1117# include <time.h>
ffed7fef 1118#endif
663a0e37 1119
fe14fcc3 1120#ifdef I_SYS_TIME
85e6fe83 1121# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1122# define KERNEL
1123# endif
1124# include <sys/time.h>
85e6fe83 1125# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1126# undef KERNEL
1127# endif
a687059c 1128#endif
135863df 1129
55497cff 1130#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1131# include <sys/times.h>
d9d8d8de 1132#endif
8d063cd8 1133
fe14fcc3 1134#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1135# undef HAS_STRERROR
663a0e37
LW		 1136#endif
1137
1138#include <errno.h>
1e743fda 1139
acfe0abc 1140#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS		 1141# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1142#endif
1143
da70cfc6 1144#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH		 1145# include <sys/socket.h>
1146# if defined(USE_SOCKS) && defined(I_SOCKS)
1147# if !defined(INCLUDE_PROTOTYPES)
1148# define INCLUDE_PROTOTYPES /* for <socks.h> */
1149# define PERL_SOCKS_NEED_PROTOTYPES
1150# endif
1151# include <socks.h>
1152# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1153# undef INCLUDE_PROTOTYPES
1154# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1155# endif
d460ef45 1156# endif
1e743fda 1157# ifdef I_NETDB
2986a63f
JH		 1158# ifdef NETWARE
1159# include<stdio.h>
1160# endif
1e743fda
JH		 1161# include <netdb.h>
1162# endif
1163# ifndef ENOTSOCK
1164# ifdef I_NET_ERRNO
1165# include <net/errno.h>
1166# endif
1167# endif
1168#endif
1169
fa0a29af 1170/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM		 1171 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1172 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1173#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM		 1174# if defined(__THROW) && defined(__GLIBC__)
1175int sockatmark(int) __THROW;
1176# else
2ef53570 1177int sockatmark(int);
29820b6d 1178# endif
2ef53570
JH		 1179#endif
1180
7e827271 1181#if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */
45d3b546
JH		 1182EXTERN_C int fchdir(int);
1183EXTERN_C int flock(int, int);
1184EXTERN_C int fseeko(FILE *, off_t, int);
1185EXTERN_C off_t ftello(FILE *);
1186#endif
1187
7e827271 1188#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1189EXTERN_C char *crypt(const char *, const char *);
7e827271 1190EXTERN_C char **environ;
1ccb7c8d
JH		 1191#endif
1192
83a6ff2e 1193#if defined(__cplusplus)
ce3470dc 1194# if defined(BSDish)
b91fbb93 1195EXTERN_C char **environ;
83a6ff2e 1196# elif defined(__CYGWIN__)
667e2948
SP		 1197EXTERN_C char *crypt(const char *, const char *);
1198#endif
83a6ff2e 1199#endif
667e2948 1200
1e743fda
JH		 1201#ifdef SETERRNO
1202# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1203#endif
f86702cc 1204
1205#ifdef VMS
1206# define SETERRNO(errcode,vmserrcode) \
1207 STMT_START { \
1208 set_errno(errcode); \
1209 set_vaxc_errno(vmserrcode); \
1210 } STMT_END
4ee39169
CS		 1211# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1212# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1213# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1214# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1215
93189314
JH		 1216# define LIB_INVARG LIB$_INVARG
1217# define RMS_DIR RMS$_DIR
1218# define RMS_FAC RMS$_FAC
1219# define RMS_FEX RMS$_FEX
1220# define RMS_FNF RMS$_FNF
1221# define RMS_IFI RMS$_IFI
1222# define RMS_ISI RMS$_ISI
1223# define RMS_PRV RMS$_PRV
1224# define SS_ACCVIO SS$_ACCVIO
1225# define SS_DEVOFFLINE SS$_DEVOFFLINE
1226# define SS_IVCHAN SS$_IVCHAN
1227# define SS_NORMAL SS$_NORMAL
8a9f18be 1228# define SS_NOPRIV SS$_NOPRIV
4388f261 1229# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1230#else
93189314
JH		 1231# define LIB_INVARG 0
1232# define RMS_DIR 0
1233# define RMS_FAC 0
1234# define RMS_FEX 0
1235# define RMS_FNF 0
1236# define RMS_IFI 0
1237# define RMS_ISI 0
1238# define RMS_PRV 0
1239# define SS_ACCVIO 0
1240# define SS_DEVOFFLINE 0
1241# define SS_IVCHAN 0
1242# define SS_NORMAL 0
8a9f18be 1243# define SS_NOPRIV 0
4388f261 1244# define SS_BUFFEROVF 0
748a9306 1245#endif
ed6116ce 1246
6ca940a9
TC		 1247#ifdef WIN32
1248# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1249# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1250# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1251# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1252#endif
1253
1254#ifdef OS2
1255# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1256# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1257# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1258# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1259#endif
1260
1261#ifndef SETERRNO
1262# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1263#endif
1264
1265#ifndef dSAVEDERRNO
1266# define dSAVEDERRNO int saved_errno
1267# define dSAVE_ERRNO int saved_errno = errno
1268# define SAVE_ERRNO (saved_errno = errno)
1269# define RESTORE_ERRNO (errno = saved_errno)
1270#endif
1271
f5fa9033 1272#define ERRSV GvSVn(PL_errgv)
dfd167e9 1273
b4f8d149 1274/* contains inlined gv_add_by_type */
dfd167e9 1275#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD		 1276 SV ** const svp = &GvSV(PL_errgv); \
1277 if (!*svp) { \
1278 goto clresv_newemptypv; \
1279 } else if (SvREADONLY(*svp)) { \
1280 SvREFCNT_dec_NN(*svp); \
1281 clresv_newemptypv: \
1282 *svp = newSVpvs(""); \
dfd167e9 1283 } else { \
b4f8d149 1284 SV *const errsv = *svp; \
dfd167e9 1285 sv_setpvs(errsv, ""); \
b4f8d149 1286 SvPOK_only(errsv); \
dfd167e9
NC		 1287 if (SvMAGICAL(errsv)) { \
1288 mg_free(errsv); \
1289 } \
dfd167e9
NC		 1290 } \
1291 } STMT_END
1292
1293
414bf5ae
MHM		 1294#ifdef PERL_CORE
1295# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC		 1296# define DEFSV_set(sv) \
1297 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1298# define SAVE_DEFSV \
1299 ( \
1300 save_gp(PL_defgv, 0), \
1301 GvINTRO_off(PL_defgv), \
1302 SAVEGENERICSV(GvSV(PL_defgv)), \
1303 GvSV(PL_defgv) = NULL \
1304 )
414bf5ae
MHM		 1305#else
1306# define DEFSV GvSVn(PL_defgv)
55b5114f
FC		 1307# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1308# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1309#endif
38a03e6e 1310
55497cff 1311#ifndef errno
5ff3f7a4
GS		 1312 extern int errno; /* ANSI allows errno to be an lvalue expr.
1313 * For example in multithreaded environments
1314 * something like this might happen:
1315 * extern int *_errno(void);
1316 * #define errno (*_errno()) */
d9d8d8de 1317#endif
663a0e37 1318
7e996671
KW		 1319#define UNKNOWN_ERRNO_MSG "(unknown)"
1320
2304df62 1321#ifdef HAS_STRERROR
b3e384bf 1322# ifndef DONT_DECLARE_STD
a0d0e21e 1323# ifdef VMS
20ce7b12 1324 char *strerror (int,...);
a0d0e21e 1325# else
20ce7b12 1326 char *strerror (int);
a0d0e21e 1327# endif
b3e384bf
KW		 1328# endif
1329# ifndef Strerror
1330# define Strerror strerror
1331# endif
2304df62
AD		 1332#else
1333# ifdef HAS_SYS_ERRLIST
79072805
LW		 1334 extern int sys_nerr;
1335 extern char *sys_errlist[];
2304df62
AD		 1336# ifndef Strerror
1337# define Strerror(e) \
7e996671 1338 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1339# endif
79072805 1340# endif
35c8bce7 1341#endif
663a0e37 1342
2304df62 1343#ifdef I_SYS_IOCTL
79072805
LW		 1344# ifndef _IOCTL_
1345# include <sys/ioctl.h>
1346# endif
a687059c
LW		 1347#endif
1348
ee0007ab 1349#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 1350# ifdef HAS_SOCKETPAIR
1351# undef HAS_SOCKETPAIR
1352# endif
2304df62
AD		 1353# ifdef I_NDBM
1354# undef I_NDBM
79072805 1355# endif
a687059c
LW		 1356#endif
1357
02fc2eee
NC		 1358#ifndef HAS_SOCKETPAIR
1359# ifdef HAS_SOCKET
1360# define socketpair Perl_my_socketpair
1361# endif
1362#endif
1363
a687059c 1364#if INTSIZE == 2
79072805
LW		 1365# define htoni htons
1366# define ntohi ntohs
a687059c 1367#else
79072805
LW		 1368# define htoni htonl
1369# define ntohi ntohl
a687059c
LW		 1370#endif
1371
a0d0e21e 1372/* Configure already sets Direntry_t */
35c8bce7 1373#if defined(I_DIRENT)
663a0e37 1374# include <dirent.h>
ae986130 1375#else
fe14fcc3 1376# ifdef I_SYS_NDIR
79a0689e 1377# include <sys/ndir.h>
663a0e37 1378# else
fe14fcc3 1379# ifdef I_SYS_DIR
79a0689e
LW		 1380# ifdef hp9000s500
1381# include <ndir.h> /* may be wrong in the future */
1382# else
1383# include <sys/dir.h>
1384# endif
663a0e37
LW		 1385# endif
1386# endif
4633a7c4 1387#endif
a687059c 1388
c623bd54
LW		 1389/*
1390 * The following gobbledygook brought to you on behalf of __STDC__.
1391 * (I could just use #ifndef __STDC__, but this is more bulletproof
1392 * in the face of half-implementations.)
1393 */
1394
21e89b5f 1395#if defined(I_SYSMODE)
ca6e1c26
JH		 1396#include <sys/mode.h>
1397#endif
1398
c623bd54
LW		 1399#ifndef S_IFMT
1400# ifdef _S_IFMT
1401# define S_IFMT _S_IFMT
1402# else
1403# define S_IFMT 0170000
1404# endif
1405#endif
1406
1407#ifndef S_ISDIR
1408# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1409#endif
1410
1411#ifndef S_ISCHR
1412# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1413#endif
1414
1415#ifndef S_ISBLK
fe14fcc3
LW		 1416# ifdef S_IFBLK
1417# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1418# else
1419# define S_ISBLK(m) (0)
1420# endif
c623bd54
LW		 1421#endif
1422
1423#ifndef S_ISREG
1424# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1425#endif
1426
1427#ifndef S_ISFIFO
fe14fcc3
LW		 1428# ifdef S_IFIFO
1429# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1430# else
1431# define S_ISFIFO(m) (0)
1432# endif
c623bd54
LW		 1433#endif
1434
1435#ifndef S_ISLNK
1436# ifdef _S_ISLNK
1437# define S_ISLNK(m) _S_ISLNK(m)
1438# else
1439# ifdef _S_IFLNK
1440# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1441# else
1442# ifdef S_IFLNK
1443# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1444# else
1445# define S_ISLNK(m) (0)
1446# endif
1447# endif
1448# endif
1449#endif
1450
1451#ifndef S_ISSOCK
1452# ifdef _S_ISSOCK
1453# define S_ISSOCK(m) _S_ISSOCK(m)
1454# else
1455# ifdef _S_IFSOCK
1456# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1457# else
1458# ifdef S_IFSOCK
1459# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1460# else
1461# define S_ISSOCK(m) (0)
1462# endif
1463# endif
1464# endif
1465#endif
1466
1467#ifndef S_IRUSR
1468# ifdef S_IREAD
1469# define S_IRUSR S_IREAD
1470# define S_IWUSR S_IWRITE
1471# define S_IXUSR S_IEXEC
1472# else
1473# define S_IRUSR 0400
1474# define S_IWUSR 0200
1475# define S_IXUSR 0100
1476# endif
fac7cdfc
JS		 1477#endif
1478
1479#ifndef S_IRGRP
1480# ifdef S_IRUSR
1481# define S_IRGRP (S_IRUSR>>3)
1482# define S_IWGRP (S_IWUSR>>3)
1483# define S_IXGRP (S_IXUSR>>3)
1484# else
1485# define S_IRGRP 0040
1486# define S_IWGRP 0020
1487# define S_IXGRP 0010
1488# endif
1489#endif
1490
1491#ifndef S_IROTH
1492# ifdef S_IRUSR
1493# define S_IROTH (S_IRUSR>>6)
1494# define S_IWOTH (S_IWUSR>>6)
1495# define S_IXOTH (S_IXUSR>>6)
1496# else
1497# define S_IROTH 0040
1498# define S_IWOTH 0020
1499# define S_IXOTH 0010
1500# endif
c623bd54
LW		 1501#endif
1502
1503#ifndef S_ISUID
1504# define S_ISUID 04000
1505#endif
1506
1507#ifndef S_ISGID
1508# define S_ISGID 02000
1509#endif
1510
ca6e1c26
JH		 1511#ifndef S_IRWXU
1512# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1513#endif
ca6e1c26
JH		 1514
1515#ifndef S_IRWXG
1516# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1517#endif
ca6e1c26
JH		 1518
1519#ifndef S_IRWXO
1520# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1521#endif
ca6e1c26 1522
b6c36746 1523/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH		 1524 * which would get included through <sys/file.h >, but that is 3000
1525 * lines in the future. --jhi */
1526
b6c36746 1527#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH		 1528# define S_IREAD S_IRUSR
1529#endif
1530
b6c36746 1531#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH		 1532# define S_IWRITE S_IWUSR
1533#endif
1534
1535#ifndef S_IEXEC
1536# define S_IEXEC S_IXUSR
1537#endif
1538
a0d0e21e 1539#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 1540# define SLOPPYDIVIDE
1541#endif
1542
748a9306
LW		 1543#ifdef UV
1544#undef UV
1545#endif
1546
ce582cee
NC		 1547/* For the times when you want the return value of sprintf, and you want it
1548 to be the length. Can't have a thread variable passed in, because C89 has
1549 no varargs macros.
1550*/
1551#ifdef SPRINTF_RETURNS_STRLEN
1552# define my_sprintf sprintf
1553#else
1554# define my_sprintf Perl_my_sprintf
1555#endif
1556
5b692037
JH		 1557/*
1558 * If we have v?snprintf() and the C99 variadic macros, we can just
1559 * use just the v?snprintf(). It is nice to try to trap the buffer
1560 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD		 1561 * gcc statement expressions, then use the function wrappers which try
1562 * to trap the overflow. If we can use the gcc statement expressions,
1563 * we can try that even with the version that uses the C99 variadic
1564 * macros.
5b692037
JH		 1565 */
1566
1208b3dd
JH		 1567/* Note that we do not check against snprintf()/vsnprintf() returning
1568 * negative values because that is non-standard behaviour and we use
1569 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1570 * that should be true only if the snprintf()/vsnprintf() are true
1571 * to the standard. */
1572
e8549682
JH		 1573#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
1574
a4eca1d4
JH		 1575#ifdef USE_QUADMATH
1576# define my_snprintf Perl_my_snprintf
1577# define PERL_MY_SNPRINTF_GUARDED
1578#else
dfeee9b1 1579#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1580# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1581# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1582# define PERL_MY_SNPRINTF_GUARDED
5b692037 1583# else
e8549682 1584# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1585# endif
1586#else
1587# define my_snprintf Perl_my_snprintf
1208b3dd 1588# define PERL_MY_SNPRINTF_GUARDED
5b692037 1589#endif
a4eca1d4 1590#endif
5b692037 1591
a4eca1d4
JH		 1592/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1593 * dies if called under USE_QUADMATH. */
dfeee9b1 1594#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1595# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1596# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1597# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1598# else
e8549682 1599# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1600# endif
1601#else
1602# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1603# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1604#endif
d9fad198 1605
e8549682
JH		 1606/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1607 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1608 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1609 * completely ignore it: otherwise you cannot know whether your output
1610 * was too long.)
1611 *
1612 * int len = my_sprintf(buf, max, ...);
1613 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1614 *
1615 * The trick is that in certain platforms [a] the my_sprintf() already
1616 * contains the sanity check, while in certain platforms [b] it needs
1617 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1618 * platforms the POST_GUARD actually does nothing since the check has
1619 * already been done. Watch out for the max being the same in both calls.
1620 *
1621 * If you actually use the snprintf/vsnprintf return value already,
1622 * you assumedly are checking its validity somehow. But you can
1623 * insert the POST_GUARD() also in that case. */
1624
1625#ifndef PERL_MY_SNPRINTF_GUARDED
1626# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1627#else
1628# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1629#endif
1630
1631#ifndef PERL_MY_VSNPRINTF_GUARDED
1632# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1633#else
1634# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1635#endif
1636
a6cc4119
SP		 1637#ifdef HAS_STRLCAT
1638# define my_strlcat strlcat
1639#else
1640# define my_strlcat Perl_my_strlcat
1641#endif
1642
1643#ifdef HAS_STRLCPY
1644# define my_strlcpy strlcpy
1645#else
1646# define my_strlcpy Perl_my_strlcpy
1647#endif
1648
05f13f53 1649/*
27d4fb96 1650 The IV type is supposed to be long enough to hold any integral
1651 value or a pointer.
1652 --Andy Dougherty August 1996
1653*/
1654
a22e52b9
JH		 1655typedef IVTYPE IV;
1656typedef UVTYPE UV;
8175356b 1657
10cc9d2a 1658#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1659# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS		 1660# define IV_MAX INT64_MAX
1661# define IV_MIN INT64_MIN
1662# define UV_MAX UINT64_MAX
cae7ae48
JH		 1663# ifndef UINT64_MIN
1664# define UINT64_MIN 0
1665# endif
5ff3f7a4
GS		 1666# define UV_MIN UINT64_MIN
1667# else
1668# define IV_MAX PERL_QUAD_MAX
1669# define IV_MIN PERL_QUAD_MIN
1670# define UV_MAX PERL_UQUAD_MAX
1671# define UV_MIN PERL_UQUAD_MIN
1672# endif
cf2093f6
JH		 1673# define IV_IS_QUAD
1674# define UV_IS_QUAD
79072805 1675#else
8175356b 1676# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS		 1677# define IV_MAX INT32_MAX
1678# define IV_MIN INT32_MIN
716026f9
DL		 1679# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1680# define UV_MAX UINT32_MAX
1681# else
1682# define UV_MAX 4294967295U
1683# endif
cae7ae48
JH		 1684# ifndef UINT32_MIN
1685# define UINT32_MIN 0
1686# endif
5ff3f7a4
GS		 1687# define UV_MIN UINT32_MIN
1688# else
1689# define IV_MAX PERL_LONG_MAX
1690# define IV_MIN PERL_LONG_MIN
1691# define UV_MAX PERL_ULONG_MAX
1692# define UV_MIN PERL_ULONG_MIN
1693# endif
8175356b 1694# if IVSIZE == 8
cf2093f6
JH		 1695# define IV_IS_QUAD
1696# define UV_IS_QUAD
de1c2614
JH		 1697# ifndef HAS_QUAD
1698# define HAS_QUAD
1699# endif
cf2093f6
JH		 1700# else
1701# undef IV_IS_QUAD
1702# undef UV_IS_QUAD
9ea40801 1703#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC		 1704/* We think that removing this decade-old undef this will cause too much
1705 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH		 1706 However, we do need HAS_QUAD in the core for use by the drand48 code,
1707 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1708# undef HAS_QUAD
e25d460c 1709#endif
cf2093f6 1710# endif
79072805 1711#endif
d7d93a81 1712
6313e544
JH		 1713#define Size_t_MAX (~(Size_t)0)
1714#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1715
cae7ae48 1716#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1717#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1718
28e5dec8 1719#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1720#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH		 1721#endif
1722
d460ef45 1723/*
26bb67e2
JH		 1724 * The macros INT2PTR and NUM2PTR are (despite their names)
1725 * bi-directional: they will convert int/float to or from pointers.
1726 * However the conversion to int/float are named explicitly:
1727 * PTR2IV, PTR2UV, PTR2NV.
1728 *
1729 * For int conversions we do not need two casts if pointers are
1730 * the same size as IV and UV. Otherwise we need an explicit
1731 * cast (PTRV) to avoid compiler warnings.
1732 */
56431972
RB		 1733#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1734# define PTRV UV
1735# define INT2PTR(any,d) (any)(d)
1736#else
d460ef45 1737# if PTRSIZE == LONGSIZE
56431972 1738# define PTRV unsigned long
e91e3b10 1739# define PTR2ul(p) (unsigned long)(p)
42718184 1740# else
56431972 1741# define PTRV unsigned
42718184 1742# endif
e91e3b10
RB		 1743#endif
1744
1745#ifndef INT2PTR
56431972 1746# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1747#endif
e91e3b10
RB		 1748
1749#ifndef PTR2ul
1750# define PTR2ul(p) INT2PTR(unsigned long,p)
1751#endif
1752
56431972
RB		 1753#define NUM2PTR(any,d) (any)(PTRV)(d)
1754#define PTR2IV(p) INT2PTR(IV,p)
1755#define PTR2UV(p) INT2PTR(UV,p)
1756#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1757#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1758
8141890a
JH		 1759/* According to strict ANSI C89 one cannot freely cast between
1760 * data pointers and function (code) pointers. There are at least
1761 * two ways around this. One (used below) is to do two casts,
1762 * first the other pointer to an (unsigned) integer, and then
1763 * the integer to the other pointer. The other way would be
1764 * to use unions to "overlay" the pointers. For an example of
1765 * the latter technique, see union dirpu in struct xpvio in sv.h.
1766 * The only feasible use is probably temporarily storing
1767 * function pointers in a data pointer (such as a void pointer). */
1768
e91e3b10
RB		 1769#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1770#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1771
65202027 1772#ifdef USE_LONG_DOUBLE
f3654d06
JH		 1773# if LONG_DOUBLESIZE == DOUBLESIZE
1774# define LONG_DOUBLE_EQUALS_DOUBLE
1775# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS		 1776# endif
1777#endif
1778
2d4389e4
JH		 1779#ifdef OVR_DBL_DIG
1780/* Use an overridden DBL_DIG */
1781# ifdef DBL_DIG
1782# undef DBL_DIG
1783# endif
1784# define DBL_DIG OVR_DBL_DIG
1785#else
1786/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS		 1787 default value for printing floating point numbers in Gconvert
1788 (see config.h). (It also has other uses, such as figuring out if
1789 a given precision of printing can be done with a double instead of
1790 a long double - Allen).
2d4389e4
JH		 1791*/
1792#ifdef I_LIMITS
1793#include <limits.h>
1794#endif
1795#ifdef I_FLOAT
1796#include <float.h>
1797#endif
1798#ifndef HAS_DBL_DIG
1799#define DBL_DIG 15 /* A guess that works lots of places */
1800#endif
1801#endif
1802
1803#ifdef OVR_LDBL_DIG
1804/* Use an overridden LDBL_DIG */
1805# ifdef LDBL_DIG
1806# undef LDBL_DIG
1807# endif
1808# define LDBL_DIG OVR_LDBL_DIG
1809#else
1810/* The following is all to get LDBL_DIG, in order to pick a nice
1811 default value for printing floating point numbers in Gconvert.
1812 (see config.h)
1813*/
68d4903c
JH		 1814# ifdef I_LIMITS
1815# include <limits.h>
1816# endif
1817# ifdef I_FLOAT
1818# include <float.h>
1819# endif
1820# ifndef HAS_LDBL_DIG
1821# if LONG_DOUBLESIZE == 10
1822# define LDBL_DIG 18 /* assume IEEE */
1823# else
1824# if LONG_DOUBLESIZE == 12
1825# define LDBL_DIG 18 /* gcc? */
1826# else
1827# if LONG_DOUBLESIZE == 16
1828# define LDBL_DIG 33 /* assume IEEE */
1829# else
1830# if LONG_DOUBLESIZE == DOUBLESIZE
1831# define LDBL_DIG DBL_DIG /* bummer */
1832# endif
1833# endif
1834# endif
1835# endif
1836# endif
2d4389e4
JH		 1837#endif
1838
20f6aaab
AS		 1839/*
1840 * This is for making sure we have a good DBL_MAX value, if possible,
1841 * either for usage as NV_MAX or for usage in figuring out if we can
1842 * fit a given long double into a double, if bug-fixing makes it
1843 * necessary to do so. - Allen <allens@cpan.org>
1844 */
1845
205f51d8
AS		 1846#ifdef I_LIMITS
1847# include <limits.h>
20f6aaab
AS		 1848#endif
1849
205f51d8
AS		 1850#ifdef I_VALUES
1851# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1852# include <values.h>
1853# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1854# define DBL_MAX MAXDOUBLE
1855# endif
1856# if defined(MINDOUBLE) && !defined(DBL_MIN)
1857# define DBL_MIN MINDOUBLE
1858# endif
1859# endif
1860#endif /* defined(I_VALUES) */
1861
a22e52b9 1862typedef NVTYPE NV;
8175356b 1863
792d8dab
JH		 1864#ifdef I_IEEEFP
1865# include <ieeefp.h>
1866#endif
923fc586 1867
c32c3de1
JH		 1868#ifdef USING_MSVC6
1869/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1870 * and for example NaN < IV_MIN. */
bcd8bfa9
JH		 1871# define NAN_COMPARE_BROKEN
1872#endif
1873#if defined(__DECC) && defined(__osf__)
1874/* Also Tru64 cc has broken NaN comparisons. */
1875# define NAN_COMPARE_BROKEN
c32c3de1
JH		 1876#endif
1877
65202027 1878#ifdef USE_LONG_DOUBLE
923fc586
JH		 1879# ifdef I_SUNMATH
1880# include <sunmath.h>
1881# endif
84e6cb05 1882# if defined(LDBL_DIG)
05b4a618
JH		 1883# define NV_DIG LDBL_DIG
1884# ifdef LDBL_MANT_DIG
1885# define NV_MANT_DIG LDBL_MANT_DIG
1886# endif
1887# ifdef LDBL_MIN
1888# define NV_MIN LDBL_MIN
1889# endif
1890# ifdef LDBL_MAX
1891# define NV_MAX LDBL_MAX
1892# endif
1893# ifdef LDBL_MIN_EXP
1894# define NV_MIN_EXP LDBL_MIN_EXP
1895# endif
1896# ifdef LDBL_MAX_EXP
1897# define NV_MAX_EXP LDBL_MAX_EXP
1898# endif
1899# ifdef LDBL_MIN_10_EXP
1900# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1901# endif
1902# ifdef LDBL_MAX_10_EXP
1903# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1904# endif
1905# ifdef LDBL_EPSILON
1906# define NV_EPSILON LDBL_EPSILON
1907# endif
1908# ifdef LDBL_MAX
1909# define NV_MAX LDBL_MAX
20f6aaab 1910/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1911# else
05b4a618
JH		 1912# ifdef HUGE_VALL
1913# define NV_MAX HUGE_VALL
f4a14a62
JH		 1914# endif
1915# endif
1916# endif
84e6cb05 1917# if defined(HAS_SQRTL)
8a00eddc
JH		 1918# define Perl_acos acosl
1919# define Perl_asin asinl
1920# define Perl_atan atanl
940e3d56
JH		 1921# define Perl_atan2 atan2l
1922# define Perl_ceil ceill
1923# define Perl_cos cosl
8a00eddc 1924# define Perl_cosh coshl
940e3d56 1925# define Perl_exp expl
55da5e5b 1926/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 1927# define Perl_floor floorl
1928# define Perl_fmod fmodl
1929# define Perl_log logl
8a00eddc 1930# define Perl_log10 log10l
940e3d56
JH		 1931# define Perl_pow powl
1932# define Perl_sin sinl
8a00eddc 1933# define Perl_sinh sinhl
940e3d56 1934# define Perl_sqrt sqrtl
8a00eddc
JH		 1935# define Perl_tan tanl
1936# define Perl_tanh tanhl
68d4903c 1937# endif
a3540c92 1938/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH		 1939# ifndef Perl_modf
1940# ifdef HAS_MODFL
1941# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC		 1942/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1943 prototype in <math.h> */
05b4a618 1944# ifndef HAS_MODFL_PROTO
a221a8a5 1945EXTERN_C long double modfl(long double, long double *);
05b4a618
JH		 1946# endif
1947# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1948 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1949# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1950# endif
a3540c92 1951# endif
05b4a618
JH		 1952# ifndef Perl_frexp
1953# ifdef HAS_FREXPL
1954# define Perl_frexp(x,y) frexpl(x,y)
1955# else
1956# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1957extern long double Perl_my_frexpl(long double x, int *e);
1958# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1959# endif
03476e8e 1960# endif
a3540c92 1961# endif
05b4a618
JH		 1962# ifndef Perl_ldexp
1963# ifdef HAS_LDEXPL
1964# define Perl_ldexp(x, y) ldexpl(x,y)
1965# else
1966# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1967# define Perl_ldexp(x,y) scalbnl(x,y)
1968# endif
98181445
JH		 1969# endif
1970# endif
38dbb4c5 1971# ifndef Perl_isnan
e4c957f4 1972# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79
JH		 1973# define Perl_isnan(x) isnanl(x)
1974# endif
1975# endif
1976# ifndef Perl_isinf
e4c957f4 1977# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1978# define Perl_isinf(x) isinfl(x)
bcd8bfa9 1979# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1980# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH		 1981# endif
1982# endif
e38461cc
JH		 1983# ifndef Perl_isfinite
1984# define Perl_isfinite(x) Perl_isfinitel(x)
1985# endif
84e6cb05
JH		 1986#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1987# include <quadmath.h>
1988# define NV_DIG FLT128_DIG
1989# define NV_MANT_DIG FLT128_MANT_DIG
1990# define NV_MIN FLT128_MIN
1991# define NV_MAX FLT128_MAX
1992# define NV_MIN_EXP FLT128_MIN_EXP
1993# define NV_MAX_EXP FLT128_MAX_EXP
1994# define NV_EPSILON FLT128_EPSILON
1995# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1996# define NV_MAX_10_EXP FLT128_MAX_10_EXP
1997# define NV_INF HUGE_VALQ
1998# define NV_NAN nanq("0")
1999# define Perl_acos acosq
2000# define Perl_asin asinq
2001# define Perl_atan atanq
2002# define Perl_atan2 atan2q
2003# define Perl_ceil ceilq
2004# define Perl_cos cosq
2005# define Perl_cosh coshq
2006# define Perl_exp expq
2007/* no Perl_fabs, but there's PERL_ABS */
2008# define Perl_floor floorq
2009# define Perl_fmod fmodq
2010# define Perl_log logq
2011# define Perl_log10 log10q
2012# define Perl_pow powq
2013# define Perl_sin sinq
2014# define Perl_sinh sinhq
2015# define Perl_sqrt sqrtq
2016# define Perl_tan tanq
2017# define Perl_tanh tanhq
2018# define Perl_modf(x,y) modfq(x,y)
2019# define Perl_frexp(x,y) frexpq(x,y)
2020# define Perl_ldexp(x, y) ldexpq(x,y)
2021# define Perl_isinf(x) isinfq(x)
2022# define Perl_isnan(x) isnanq(x)
2023# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2024#else
2d4389e4 2025# define NV_DIG DBL_DIG
d6c14000
JH		 2026# ifdef DBL_MANT_DIG
2027# define NV_MANT_DIG DBL_MANT_DIG
2028# endif
06fc1729
JH		 2029# ifdef DBL_MIN
2030# define NV_MIN DBL_MIN
2031# endif
2032# ifdef DBL_MAX
2033# define NV_MAX DBL_MAX
2034# endif
40bca5ae
JH		 2035# ifdef DBL_MIN_EXP
2036# define NV_MIN_EXP DBL_MIN_EXP
2037# endif
2038# ifdef DBL_MAX_EXP
2039# define NV_MAX_EXP DBL_MAX_EXP
2040# endif
06fc1729
JH		 2041# ifdef DBL_MIN_10_EXP
2042# define NV_MIN_10_EXP DBL_MIN_10_EXP
2043# endif
2044# ifdef DBL_MAX_10_EXP
2045# define NV_MAX_10_EXP DBL_MAX_10_EXP
2046# endif
2047# ifdef DBL_EPSILON
2048# define NV_EPSILON DBL_EPSILON
2049# endif
205f51d8 2050# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH		 2051# define NV_MAX DBL_MAX
2052# define NV_MIN DBL_MIN
2053# else
2054# ifdef HUGE_VAL
2055# define NV_MAX HUGE_VAL
2056# endif
2057# endif
940e3d56 2058
55da5e5b 2059/* These math interfaces are C89. */
8a00eddc
JH		 2060# define Perl_acos acos
2061# define Perl_asin asin
2062# define Perl_atan atan
940e3d56
JH		 2063# define Perl_atan2 atan2
2064# define Perl_ceil ceil
2065# define Perl_cos cos
8a00eddc 2066# define Perl_cosh cosh
940e3d56 2067# define Perl_exp exp
55da5e5b 2068/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 2069# define Perl_floor floor
2070# define Perl_fmod fmod
2071# define Perl_log log
8a00eddc 2072# define Perl_log10 log10
940e3d56
JH		 2073# define Perl_pow pow
2074# define Perl_sin sin
8a00eddc 2075# define Perl_sinh sinh
940e3d56 2076# define Perl_sqrt sqrt
8a00eddc
JH		 2077# define Perl_tan tan
2078# define Perl_tanh tanh
940e3d56
JH		 2079
2080# define Perl_modf(x,y) modf(x,y)
2081# define Perl_frexp(x,y) frexp(x,y)
2082# define Perl_ldexp(x,y) ldexp(x,y)
2083
1a322af2
JH		 2084# ifndef Perl_isnan
2085# ifdef HAS_ISNAN
2086# define Perl_isnan(x) isnan(x)
2087# endif
2088# endif
2089# ifndef Perl_isinf
2090# if defined(HAS_ISINF)
2091# define Perl_isinf(x) isinf(x)
bcd8bfa9 2092# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2093# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH		 2094# endif
2095# endif
2096# ifndef Perl_isfinite
2097# ifdef HAS_ISFINITE
2098# define Perl_isfinite(x) isfinite(x)
2099# elif defined(HAS_FINITE)
2100# define Perl_isfinite(x) finite(x)
2101# endif
2102# endif
758a5d79
JH		 2103#endif
2104
30404d48
JH		 2105/* fpclassify(): C99. It is supposed to be a macro that switches on
2106* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2107#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2108# include <math.h>
25c46df8
JH		 2109# if defined(FP_INFINITE) && defined(FP_NAN)
2110# define Perl_fp_class(x) fpclassify(x)
2111# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2112# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2113# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2114# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2115# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2116# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2117/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2118 * actually not the C99 fpclassify, with its own set of return defines. */
2119# define Perl_fp_class(x) fpclassify(x)
2120# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2121# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2122# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH		 2123# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2124# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2125# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH		 2126# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2127# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2128# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2129# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2130# else
2131# undef Perl_fp_class /* Unknown set of defines */
2132# endif
30404d48
JH		 2133#endif
2134
25c46df8
JH		 2135/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2136 * are identical to the C99 fpclassify(). */
2137#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2138# include <math.h>
558f3e66
CB		 2139# ifdef __VMS
2140 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2141# include <fp.h>
56610b8f
CB		 2142 /* oh, and the isnormal macro has a typo in it! */
2143# undef isnormal
2144# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2145# endif
25c46df8
JH		 2146# if defined(FP_INFINITE) && defined(FP_NAN)
2147# define Perl_fp_class(x) fp_classify(x)
2148# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2149# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2150# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2151# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2152# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2153# else
2154# undef Perl_fp_class /* Unknown set of defines */
2155# endif
f279e099 2156#endif
205f51d8 2157
30404d48
JH		 2158/* Feel free to check with me for the SGI manpages, SGI testing,
2159 * etcetera, if you want to try getting this to work with IRIX.
2160 *
2161 * - Allen <allens@cpan.org> */
2162
2163/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2164#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH		 2165/* Solaris and IRIX have fpclass/fpclassl, but they are using
2166 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2167 * Define some symbols also as cpp symbols so we can detect them. */
2168# if defined(__sun) || defined(__irix__) /* XXX Configure test instead */
2169# define FP_PINF FP_PINF
2170# define FP_QNAN FP_QNAN
2171# endif
f279e099 2172# include <math.h>
758a5d79
JH		 2173# ifdef I_IEEFP
2174# include <ieeefp.h>
2175# endif
2176# ifdef I_FP
2177# include <fp.h>
2178# endif
2179# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2180# define Perl_fp_class(x) fpclassl(x)
758a5d79 2181# else
f279e099
JH		 2182# define Perl_fp_class(x) fpclass(x)
2183# endif
25c46df8 2184# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH		 2185# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2186# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2187# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2188# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2189# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2190# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2191# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2192# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2193# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2194# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2195# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH		 2196# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2197# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2198# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2199# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2200# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2201# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2202# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2203# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2204# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2205# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH		 2206# else
2207# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2208# endif
758a5d79
JH		 2209#endif
2210
30404d48
JH		 2211/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2212#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH		 2213# include <math.h>
2214# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2215# include <fp_class.h>
2216# endif
25c46df8
JH		 2217# if defined(FP_POS_INF) && defined(FP_QNAN)
2218# ifdef __irix__ /* XXX Configure test instead */
2219# ifdef USE_LONG_DOUBLE
2220# define Perl_fp_class(x) fp_class_l(x)
2221# else
2222# define Perl_fp_class(x) fp_class_d(x)
2223# endif
f279e099 2224# else
25c46df8
JH		 2225# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2226# define Perl_fp_class(x) fp_classl(x)
2227# else
2228# define Perl_fp_class(x) fp_class(x)
2229# endif
f279e099 2230# endif
25c46df8
JH		 2231# if defined(FP_POS_INF) && defined(FP_QNAN)
2232# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2233# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2234# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2235# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2236# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2237# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2238# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2239# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2240# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2241# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2242# else
25c46df8 2243# undef Perl_fp_class /* Unknown set of defines */
30404d48 2244# endif
f279e099 2245# endif
30404d48
JH		 2246#endif
2247
052758ae 2248/* class(), _class(): Legacy: AIX. */
758a5d79
JH		 2249#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2250# include <math.h>
25c46df8
JH		 2251# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2252# ifndef _cplusplus
2253# define Perl_fp_class(x) class(x)
2254# else
2255# define Perl_fp_class(x) _class(x)
2256# endif
2257# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2258# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2259# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2260# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2261# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2262# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2263# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2264# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2265# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2266# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2267# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2268# else
2269# undef Perl_fp_class /* Unknown set of defines */
2270# endif
758a5d79 2271# endif
30404d48
JH		 2272#endif
2273
2274/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH		 2275#ifdef WIN32
2276# ifndef Perl_isnan
2277# define Perl_isnan(x) _isnan(x)
2278# endif
2279# ifndef Perl_isfinite
2280# define Perl_isfinite(x) _finite(x)
2281# endif
2282# ifndef Perl_fp_class_snan
25c46df8
JH		 2283/* No simple way to #define Perl_fp_class because _fpclass()
2284 * returns a set of bits. */
796ea9ea
JH		 2285# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2286# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2287# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH		 2288# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2289# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2290# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2291# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2292# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2293# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2294# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2295# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2296# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2297# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2298# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2299# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2300# endif
f279e099
JH		 2301#endif
2302
2303#if !defined(Perl_fp_class_inf) && \
2304 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2305# define Perl_fp_class_inf(x) \
2306 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2307#endif
2308
2309#if !defined(Perl_fp_class_nan) && \
2310 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2311# define Perl_fp_class_nan(x) \
2312 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2313#endif
2314
2315#if !defined(Perl_fp_class_zero) && \
2316 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2317# define Perl_fp_class_zero(x) \
2318 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2319#endif
2320
2321#if !defined(Perl_fp_class_norm) && \
2322 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2323# define Perl_fp_class_norm(x) \
2324 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2325#endif
2326
2327#if !defined(Perl_fp_class_denorm) && \
2328 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2329# define Perl_fp_class_denorm(x) \
2330 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2331#endif
758a5d79 2332
1a322af2
JH		 2333#ifdef UNDER_CE
2334int isnan(double d);
2335#endif
2336
758a5d79 2337#ifndef Perl_isnan
1a322af2
JH		 2338# ifdef Perl_fp_class_nan
2339# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2340# else
1a322af2
JH		 2341# ifdef HAS_UNORDERED
2342# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2343# else
1a322af2 2344# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH		 2345# endif
2346# endif
2347#endif
2348
1a322af2
JH		 2349#ifndef Perl_isinf
2350# ifdef Perl_fp_class_inf
2351# define Perl_isinf(x) Perl_fp_class_inf(x)
2352# endif
ca6c63e1
JH		 2353#endif
2354
758a5d79 2355#ifndef Perl_isfinite
25c46df8 2356# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2357# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2358# elif defined(HAS_FINITE)
c496ca58 2359# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH		 2360# elif defined(Perl_fp_class_finite)
2361# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2362# else
c496ca58
JH		 2363/* For the infinities the multiplication returns nan,
2364 * for the nan the multiplication also returns nan,
2365 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2366# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2367# endif
65202027
DS		 2368#endif
2369
25c46df8
JH		 2370#ifndef Perl_isinf
2371# if defined(Perl_isfinite) && defined(Perl_isnan)
2372# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2373# endif
2374#endif
2375
d3685250
JH		 2376/* We need Perl_isfinitel (ends with ell) (if available) even when
2377 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2378 * needs that. */
2379#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2380/* If isfinite() is a macro and looks like we have C99,
2381 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2382# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH		 2383# define Perl_isfinitel(x) isfinite(x)
2384# elif defined(HAS_ISFINITEL)
2385# define Perl_isfinitel(x) isfinitel(x)
2386# elif defined(HAS_FINITEL)
2387# define Perl_isfinitel(x) finitel(x)
2388# elif defined(HAS_INFL) && defined(HAS_NANL)
2389# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2390# else
99bf9e32 2391# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH		 2392# endif
2393#endif
2394
a36244b7
JH		 2395/* The default is to use Perl's own atof() implementation (in numeric.c).
2396 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2397 * it is however best to use the native implementation of atof.
2398 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2399 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS		 2400 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2401 * you may need to be using a different function than atof! */
a36244b7
JH		 2402
2403#ifndef USE_PERL_ATOF
2404# ifndef _UNICOS
2405# define USE_PERL_ATOF
2406# endif
2407#else
2408# if USE_PERL_ATOF == 0
2409# undef USE_PERL_ATOF
2410# endif
2411#endif
2412
2413#ifdef USE_PERL_ATOF
2414# define Perl_atof(s) Perl_my_atof(s)
2415# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2416#else
2417# define Perl_atof(s) (NV)atof(s)
2418# define Perl_atof2(s, n) ((n) = atof(s))
2419#endif
cf2093f6 2420
d460ef45 2421/* Previously these definitions used hardcoded figures.
760ac839
LW		 2422 * It is hoped these formula are more portable, although
2423 * no data one way or another is presently known to me.
2424 * The "PERL_" names are used because these calculated constants
2425 * do not meet the ANSI requirements for LONG_MAX, etc., which
2426 * need to be constants acceptable to #if - kja
2427 * define PERL_LONG_MAX 2147483647L
2428 * define PERL_LONG_MIN (-LONG_MAX - 1)
2429 * define PERL ULONG_MAX 4294967295L
2430 */
2431
2432#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2433# include <limits.h>
760ac839 2434#endif
205f51d8 2435/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2436 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2437
99abf803 2438/*
2439 * Try to figure out max and min values for the integral types. THE CORRECT
2440 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2441 * following hacks are used if neither limits.h or values.h provide them:
2442 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2443 * for types < int: (unsigned TYPE)~(unsigned)0
2444 * The argument to ~ must be unsigned so that later signed->unsigned
2445 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2446 * and it must not be smaller than int because ~ does integral promotion.
2447 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2448 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2449 * The latter is a hack which happens to work on some machines but
2450 * does *not* catch any random system, or things like integer types
2451 * with NaN if that is possible.
2452 *
2453 * All of the types are explicitly cast to prevent accidental loss of
2454 * numeric range, and in the hope that they will be less likely to confuse
2455 * over-eager optimizers.
2456 *
2457 */
27d4fb96 2458
99abf803 2459#define PERL_UCHAR_MIN ((unsigned char)0)
2460
2461#ifdef UCHAR_MAX
2462# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2463#else
99abf803 2464# ifdef MAXUCHAR
2465# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2466# else
99abf803 2467# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 2468# endif
2469#endif
d460ef45 2470
99abf803 2471/*
2472 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2473 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2474 * depending on local options. Until Configure detects this (or at least
2475 * detects whether the "signed" keyword is available) the CHAR ranges
2476 * will not be included. UCHAR functions normally.
2477 * - kja
2478 */
27d4fb96 2479
99abf803 2480#define PERL_USHORT_MIN ((unsigned short)0)
2481
2482#ifdef USHORT_MAX
2483# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2484#else
99abf803 2485# ifdef MAXUSHORT
2486# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2487# else
ef2f54b0
CB		 2488# ifdef USHRT_MAX
2489# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2490# else
2491# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2492# endif
27d4fb96 2493# endif
2494#endif
2495
27d4fb96 2496#ifdef SHORT_MAX
99abf803 2497# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 2498#else
2499# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2500# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2501# else
ef2f54b0
CB		 2502# ifdef SHRT_MAX
2503# define PERL_SHORT_MAX ((short)SHRT_MAX)
2504# else
2505# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2506# endif
27d4fb96 2507# endif
2508#endif
2509
2510#ifdef SHORT_MIN
99abf803 2511# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 2512#else
2513# ifdef MINSHORT
99abf803 2514# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2515# else
ef2f54b0
CB		 2516# ifdef SHRT_MIN
2517# define PERL_SHORT_MIN ((short)SHRT_MIN)
2518# else
2519# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2520# endif
27d4fb96 2521# endif
2522#endif
2523
99abf803 2524#ifdef UINT_MAX
2525# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2526#else
99abf803 2527# ifdef MAXUINT
2528# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2529# else
99abf803 2530# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 2531# endif
2532#endif
2533
99abf803 2534#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2535
2536#ifdef INT_MAX
99abf803 2537# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 2538#else
2539# ifdef MAXINT /* Often used in <values.h> */
99abf803 2540# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2541# else
99abf803 2542# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 2543# endif
2544#endif
2545
2546#ifdef INT_MIN
99abf803 2547# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2548#else
2549# ifdef MININT
99abf803 2550# define PERL_INT_MIN ((int)MININT)
27d4fb96 2551# else
2552# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2553# endif
2554#endif
2555
99abf803 2556#ifdef ULONG_MAX
2557# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2558#else
99abf803 2559# ifdef MAXULONG
2560# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2561# else
99abf803 2562# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 2563# endif
2564#endif
2565
99abf803 2566#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2567
760ac839 2568#ifdef LONG_MAX
99abf803 2569# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 2570#else
2571# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2572# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2573# else
99abf803 2574# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 2575# endif
2576#endif
2577
2578#ifdef LONG_MIN
99abf803 2579# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 2580#else
2581# ifdef MINLONG
99abf803 2582# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2583# else
27d4fb96 2584# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 2585# endif
2586#endif
2587
d7d93a81 2588#ifdef UV_IS_QUAD
99abf803 2589
99abf803 2590# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2591# define PERL_UQUAD_MIN ((UV)0)
99abf803 2592# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2593# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2594
79072805
LW		 2595#endif
2596
ee0007ab 2597typedef MEM_SIZE STRLEN;
450a55e4 2598
79072805
LW		 2599typedef struct op OP;
2600typedef struct cop COP;
2601typedef struct unop UNOP;
2f7c6295 2602typedef struct unop_aux UNOP_AUX;
79072805
LW		 2603typedef struct binop BINOP;
2604typedef struct listop LISTOP;
2605typedef struct logop LOGOP;
79072805
LW		 2606typedef struct pmop PMOP;
2607typedef struct svop SVOP;
7934575e 2608typedef struct padop PADOP;
79072805 2609typedef struct pvop PVOP;
79072805 2610typedef struct loop LOOP;
b46e009d 2611typedef struct methop METHOP;
79072805 2612
7aef8e5b 2613#ifdef PERL_CORE
8be227ab
FC		 2614typedef struct opslab OPSLAB;
2615typedef struct opslot OPSLOT;
2616#endif
2617
52db365a 2618typedef struct block_hooks BHK;
1830b3d9 2619typedef struct custom_op XOP;
52db365a 2620
cd1541b2
NC		 2621typedef struct interpreter PerlInterpreter;
2622
d2b3f365 2623/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2624#if defined(__sgi)
d2b3f365 2625# define STRUCT_SV perl_sv
b8d3c5db
JH		 2626#else
2627# define STRUCT_SV sv
2628#endif
2629typedef struct STRUCT_SV SV;
79072805
LW		 2630typedef struct av AV;
2631typedef struct hv HV;
2632typedef struct cv CV;
d2f13c59 2633typedef struct p5rx REGEXP;
79072805 2634typedef struct gp GP;
0c30d9ec 2635typedef struct gv GV;
8990e307 2636typedef struct io IO;
c09156bb 2637typedef struct context PERL_CONTEXT;
79072805
LW		 2638typedef struct block BLOCK;
2639
2640typedef struct magic MAGIC;
2641typedef struct xpv XPV;
2642typedef struct xpviv XPVIV;
ff68c719 2643typedef struct xpvuv XPVUV;
79072805
LW		 2644typedef struct xpvnv XPVNV;
2645typedef struct xpvmg XPVMG;
2646typedef struct xpvlv XPVLV;
d361b004 2647typedef struct xpvinvlist XINVLIST;
79072805
LW		 2648typedef struct xpvav XPVAV;
2649typedef struct xpvhv XPVHV;
2650typedef struct xpvgv XPVGV;
2651typedef struct xpvcv XPVCV;
2652typedef struct xpvbm XPVBM;
2653typedef struct xpvfm XPVFM;
8990e307 2654typedef struct xpvio XPVIO;
79072805
LW		 2655typedef struct mgvtbl MGVTBL;
2656typedef union any ANY;
5f7fde29
GS		 2657typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2658typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS		 2659typedef struct clone_params CLONE_PARAMS;
2660
0f94cb1f 2661/* a pad is currently just an AV; but that might change,
7261499d
FC		 2662 * so hide the type. */
2663typedef struct padlist PADLIST;
67634234 2664typedef AV PAD;
9b7476d7 2665typedef struct padnamelist PADNAMELIST;
0f94cb1f 2666typedef struct padname PADNAME;
67634234 2667
13b0f67d
DM		 2668/* enable PERL_NEW_COPY_ON_WRITE by default */
2669#if !defined(PERL_OLD_COPY_ON_WRITE) && !defined(PERL_NEW_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2670# define PERL_NEW_COPY_ON_WRITE
2671#endif
07d01d6e 2672
db2c6cb3
FC		 2673#if defined(PERL_OLD_COPY_ON_WRITE) || defined(PERL_NEW_COPY_ON_WRITE)
2674# if defined(PERL_OLD_COPY_ON_WRITE) && defined(PERL_NEW_COPY_ON_WRITE)
2675# error PERL_OLD_COPY_ON_WRITE and PERL_NEW_COPY_ON_WRITE are exclusive
2676# else
2677# define PERL_ANY_COW
2678# endif
9f351b45
DM		 2679#else
2680# define PERL_SAWAMPERSAND
db2c6cb3
FC		 2681#endif
2682
40653c20
FC		 2683#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2684# error PERL_DEBUG_READONLY_OPS only works with ithreads
2685#endif
2686
378cc40b 2687#include "handy.h"
64935bc6 2688#include "charclass_invlists.h"
a0d0e21e 2689
6b8eaf93 2690#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH		 2691# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2692# define USE_64_BIT_RAWIO /* implicit */
2693# endif
4564133c
JH		 2694#endif
2695
6b8eaf93
JH		 2696/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2697 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2698 * however, because operating systems like to do that themself. */
2699#ifndef FSEEKSIZE
2700# ifdef HAS_FSEEKO
2701# define FSEEKSIZE LSEEKSIZE
2702# else
2703# define FSEEKSIZE LONGSIZE
d460ef45 2704# endif
6b8eaf93
JH		 2705#endif
2706
2707#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH		 2708# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2709# define USE_64_BIT_STDIO /* implicit */
2710# endif
2711#endif
4564133c 2712
09458382 2713#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH		 2714# ifdef HAS_OFF64_T
2715# undef Off_t
2716# define Off_t off64_t
2717# undef LSEEKSIZE
2718# define LSEEKSIZE 8
5ff3f7a4 2719# endif
d9b3e12d
JH		 2720/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2721 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2722 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH		 2723# if defined(USE_OPEN64)
2724# define open open64
5ff3f7a4 2725# endif
d9b3e12d
JH		 2726# if defined(USE_LSEEK64)
2727# define lseek lseek64
6b8eaf93
JH		 2728# else
2729# if defined(USE_LLSEEK)
2730# define lseek llseek
2731# endif
d9b3e12d
JH		 2732# endif
2733# if defined(USE_STAT64)
2734# define stat stat64
2735# endif
2736# if defined(USE_FSTAT64)
2737# define fstat fstat64
2738# endif
2739# if defined(USE_LSTAT64)
2740# define lstat lstat64
2741# endif
2742# if defined(USE_FLOCK64)
2743# define flock flock64
2744# endif
2745# if defined(USE_LOCKF64)
2746# define lockf lockf64
2747# endif
2748# if defined(USE_FCNTL64)
2749# define fcntl fcntl64
2750# endif
2751# if defined(USE_TRUNCATE64)
2752# define truncate truncate64
2753# endif
2754# if defined(USE_FTRUNCATE64)
2755# define ftruncate ftruncate64
2756# endif
2757#endif
2758
2759#ifdef USE_64_BIT_STDIO
2760# ifdef HAS_FPOS64_T
2761# undef Fpos_t
2762# define Fpos_t fpos64_t
2763# endif
2764/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2765 * will trigger defines like the ones below. Some 64-bit environments,
2766 * however, do not. */
2767# if defined(USE_FOPEN64)
2768# define fopen fopen64
2769# endif
2770# if defined(USE_FSEEK64)
6b8eaf93 2771# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH		 2772# endif
2773# if defined(USE_FTELL64)
6b8eaf93 2774# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH		 2775# endif
2776# if defined(USE_FSETPOS64)
2777# define fsetpos fsetpos64
2778# endif
2779# if defined(USE_FGETPOS64)
2780# define fgetpos fgetpos64
2781# endif
2782# if defined(USE_TMPFILE64)
2783# define tmpfile tmpfile64
2784# endif
2785# if defined(USE_FREOPEN64)
2786# define freopen freopen64
5ff3f7a4
GS		 2787# endif
2788#endif
2789
e37778c2 2790#if defined(OS2)
2c2d71f5
JH		 2791# include "iperlsys.h"
2792#endif
2793
748a9306 2794#ifdef DOSISH
19848b3f
JH		 2795# if defined(OS2)
2796# include "os2ish.h"
2797# else
2798# include "dosish.h"
2799# endif
009819bb 2800#elif defined(VMS)
748a9306 2801# include "vmsish.h"
009819bb 2802#elif defined(PLAN9)
19848b3f 2803# include "./plan9/plan9ish.h"
009819bb 2804#elif defined(__VOS__)
196918b0
PG		 2805# ifdef __GNUC__
2806# include "./vos/vosish.h"
2807# else
2808# include "vos/vosish.h"
2809# endif
009819bb 2810#elif defined(__SYMBIAN32__)
27da23d5 2811# include "symbian/symbianish.h"
009819bb 2812#elif defined(__HAIKU__)
df00ff3b 2813# include "haiku/haikuish.h"
009819bb 2814#else
19848b3f 2815# include "unixish.h"
13b6e58c
JH		 2816#endif
2817
2946a158
JH		 2818/* NSIG logic from Configure --> */
2819/* Strange style to avoid deeply-nested #if/#else/#endif */
2820#ifndef NSIG
2821# ifdef _NSIG
2822# define NSIG (_NSIG)
2823# endif
2824#endif
2825
2826#ifndef NSIG
2827# ifdef SIGMAX
2828# define NSIG (SIGMAX+1)
2829# endif
2830#endif
2831
2832#ifndef NSIG
2833# ifdef SIG_MAX
2834# define NSIG (SIG_MAX+1)
2835# endif
2836#endif
2837
2838#ifndef NSIG
2839# ifdef _SIG_MAX
2840# define NSIG (_SIG_MAX+1)
2841# endif
2842#endif
2843
2844#ifndef NSIG
2845# ifdef MAXSIG
2846# define NSIG (MAXSIG+1)
2847# endif
2848#endif
2849
2850#ifndef NSIG
2851# ifdef MAX_SIG
2852# define NSIG (MAX_SIG+1)
2853# endif
2854#endif
2855
2856#ifndef NSIG
2857# ifdef SIGARRAYSIZE
2858# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2859# endif
2860#endif
2861
2862#ifndef NSIG
2863# ifdef _sys_nsig
2864# define NSIG (_sys_nsig) /* Solaris 2.5 */
2865# endif
2866#endif
2867
2868/* Default to some arbitrary number that's big enough to get most
2869 of the common signals.
2870*/
2871#ifndef NSIG
2872# define NSIG 50
2873#endif
2874/* <-- NSIG logic from Configure */
2875
13b6e58c
JH		 2876#ifndef NO_ENVIRON_ARRAY
2877# define USE_ENVIRON_ARRAY
2878#endif
32f822de 2879
c77b533b
JH		 2880/*
2881 * initialise to avoid floating-point exceptions from overflow, etc
2882 */
2883#ifndef PERL_FPU_INIT
2884# ifdef HAS_FPSETMASK
2885# if HAS_FLOATINGPOINT_H
2886# include <floatingpoint.h>
2887# endif
ad3a8c67
NC		 2888/* Some operating systems have this as a macro, which in turn expands to a comma
2889 expression, and the last sub-expression is something that gets calculated,
2890 and then they have the gall to warn that a value computed is not used. Hence
2891 cast to void. */
2892# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2893# else
2f42fcb0 2894# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2895# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS		 2896# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2897# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH		 2898# else
2899# define PERL_FPU_INIT
2f42fcb0 2900
7014c407 2901# endif
c77b533b
JH		 2902# endif
2903#endif
b35112e7
CS		 2904#ifndef PERL_FPU_PRE_EXEC
2905# define PERL_FPU_PRE_EXEC {
2906# define PERL_FPU_POST_EXEC }
2907#endif
c77b533b 2908
a308b05a
JH		 2909/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2910 * We need to reenable the "invalid" trap because otherwise generation
2911 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2912 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2913#ifdef __osf__
2914# include <machine/fpu.h>
2915# define PERL_SYS_FPU_INIT \
2916 STMT_START { \
2917 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2918 signal(SIGFPE, SIG_IGN); \
2919 } STMT_END
2920#endif
94a08944
JH		 2921/* In IRIX the default for Flush to Zero bit is true,
2922 * which means that results going below the minimum of normal
2923 * floating points go to zero, instead of going denormal/subnormal.
2924 * This is unlike almost any other system running Perl, so let's clear it.
2925 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2926 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2927 *
2928 * XXX The flush-to-zero behaviour should be a Configure scan.
2929 * To change the behaviour usually requires some system-specific
2930 * incantation, though, like the below. */
2931#ifdef __sgi
2932# include <sys/fpu.h>
2933# define PERL_SYS_FPU_INIT \
2934 STMT_START { \
2935 union fpc_csr csr; \
2936 csr.fc_word = get_fpc_csr(); \
2937 csr.fc_struct.flush = 0; \
2938 set_fpc_csr(csr.fc_word); \
2939 } STMT_END
2940#endif
a308b05a
JH		 2941
2942#ifndef PERL_SYS_FPU_INIT
2943# define PERL_SYS_FPU_INIT NOOP
2944#endif
2945
cbec8ebe
DM		 2946#ifndef PERL_SYS_INIT3_BODY
2947# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ		 2948#endif
2949
eb533572 2950/*
dcccc8ff
KW		 2951=head1 Miscellaneous Functions
2952
4ad9e498 2953=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2954Provides system-specific tune up of the C runtime environment necessary to
72d33970 2955run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2956any Perl interpreters.
2957
4ad9e498 2958=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2959Provides system-specific tune up of the C runtime environment necessary to
72d33970 2960run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2961any Perl interpreters.
2962
2963=for apidoc Am|void|PERL_SYS_TERM|
2964Provides system-specific clean up of the C runtime environment after
72d33970 2965running Perl interpreters. This should be called only once, after
eb533572
DM		 2966freeing any remaining Perl interpreters.
2967
2968=cut
2969 */
2970
cbec8ebe
DM		 2971#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2972#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2973#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2974
be708cc0
JH		 2975#ifndef PERL_WRITE_MSG_TO_CONSOLE
2976# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2977#endif
2978
0f31cffe
GS		 2979#ifndef MAXPATHLEN
2980# ifdef PATH_MAX
b990c8b2
JH		 2981# ifdef _POSIX_PATH_MAX
2982# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH		 2983/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2984 * included the null byte or not. Later amendments of POSIX,
2985 * XPG4, the Austin Group, and the Single UNIX Specification
2986 * all explicitly include the null byte in the PATH_MAX.
2987 * Ditto for _POSIX_PATH_MAX. */
2988# define MAXPATHLEN PATH_MAX
b990c8b2 2989# else
09448d78 2990# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2991# endif
2992# else
2993# define MAXPATHLEN (PATH_MAX+1)
2994# endif
0f31cffe 2995# else
d552bce8 2996# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS		 2997# endif
2998#endif
2999
c80263a8
SH		 3000/* In case Configure was not used (we are using a "canned config"
3001 * such as Win32, or a cross-compilation setup, for example) try going
3002 * by the gcc major and minor versions. One useful URL is
3003 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
3004 * but contrary to this information warn_unused_result seems
3005 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD		 3006 * Also, when building extensions with an installed perl, this allows
3007 * the user to upgrade gcc and get the right attributes, rather than
3008 * relying on the list generated at Configure time. --AD
c80263a8
SH		 3009 * Set these up now otherwise we get confused when some of the <*thread.h>
3010 * includes below indirectly pull in <perlio.h> (which needs to know if we
3011 * have HASATTRIBUTE_FORMAT).
3012 */
3013
4d7c7898 3014#ifndef PERL_MICRO
fc2007d4 3015#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS		 3016# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
3017# define HASATTRIBUTE_DEPRECATED
3018# endif
c80263a8
SH		 3019# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
3020# define HASATTRIBUTE_FORMAT
63cdf24b
SH		 3021# if defined __MINGW32__
3022# define PRINTF_FORMAT_NULL_OK
3023# endif
c80263a8
SH		 3024# endif
3025# if __GNUC__ >= 3 /* 3.0 -> */
3026# define HASATTRIBUTE_MALLOC
3027# endif
3028# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3029# define HASATTRIBUTE_NONNULL
3030# endif
3031# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3032# define HASATTRIBUTE_NORETURN
3033# endif
3034# if __GNUC__ >= 3 /* gcc 3.0 -> */
3035# define HASATTRIBUTE_PURE
3036# endif
42bf5550 3037# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH		 3038# define HASATTRIBUTE_UNUSED
3039# endif
d324fe49
AD		 3040# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3041# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3042# endif
c80263a8
SH		 3043# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3044# define HASATTRIBUTE_WARN_UNUSED_RESULT
3045# endif
3046#endif
00f254e2 3047#endif /* #ifndef PERL_MICRO */
c80263a8 3048
3db8f154 3049/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3050 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS		 3051 * this results in many functions being undeclared which bothers C++
3052 * May make sense to have threads after "*ish.h" anyway
3053 */
3054
3db8f154 3055#if defined(USE_ITHREADS)
2986a63f
JH		 3056# ifdef NETWARE
3057# include <nw5thread.h>
3058# else
32f822de
GS		 3059# ifdef WIN32
3060# include <win32thread.h>
3061# else
dd96f567
IZ		 3062# ifdef OS2
3063# include "os2thread.h"
3064# else
7f3d1cf1 3065# ifdef I_MACH_CTHREADS
bdd66968 3066# include <mach/cthreads.h>
7f3d1cf1
BH		 3067typedef cthread_t perl_os_thread;
3068typedef mutex_t perl_mutex;
3069typedef condition_t perl_cond;
3070typedef void * perl_key;
3071# else /* Posix threads */
1f5ae88c
JH		 3072# ifdef I_PTHREAD
3073# include <pthread.h>
3074# endif
7f3d1cf1
BH		 3075typedef pthread_t perl_os_thread;
3076typedef pthread_mutex_t perl_mutex;
3077typedef pthread_cond_t perl_cond;
3078typedef pthread_key_t perl_key;
3079# endif /* I_MACH_CTHREADS */
dd96f567 3080# endif /* OS2 */
32f822de 3081# endif /* WIN32 */
ef4abe76 3082# endif /* NETWARE */
3db8f154 3083#endif /* USE_ITHREADS */
c5be433b 3084
66a93824 3085#if defined(WIN32)
1feb2720 3086# include "win32.h"
c5be433b
GS		 3087#endif
3088
2986a63f
JH		 3089#ifdef NETWARE
3090# include "netware.h"
3091#endif
3092
e5218da5 3093#define STATUS_UNIX PL_statusvalue
68dc0745 3094#ifdef VMS
6b88bc9c 3095# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM		 3096/*
3097 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3098 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM		 3099 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3100 * be updated also.
3101 */
3102# include <stsdef.h>
3103# include <ssdef.h>
3104/* Presume this because if VMS changes it, it will require a new
3105 * set of APIs for waiting on children for binary compatibility.
3106 */
3107# define child_offset_bits (8)
3108# ifndef C_FAC_POSIX
3109# define C_FAC_POSIX 0x35A000
3110# endif
3111
3112/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3113 * platform from the existing UNIX or Native status values.
3114 */
3115
37038d91 3116# define STATUS_EXIT \
7a7fd8e0
JM		 3117 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3118 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3119
7a7fd8e0 3120
fb38d079
JM		 3121/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3122 * exit code and shifts the UNIX value over the correct number of bits to
3123 * be a child status. Usually the number of bits is 8, but that could be
3124 * platform dependent. The NATIVE status code is presumed to have either
3125 * from a child process.
7a7fd8e0
JM		 3126 */
3127
fb38d079
JM		 3128/* This is complicated. The child processes return a true native VMS
3129 status which must be saved. But there is an assumption in Perl that
3130 the UNIX child status has some relationship to errno values, so
00f254e2 3131 Perl tries to translate it to text in some of the tests.
fb38d079
JM		 3132 In order to get the string translation correct, for the error, errno
3133 must be EVMSERR, but that generates a different text message
3134 than what the test programs are expecting. So an errno value must
3135 be derived from the native status value when an error occurs.
3136 That will hide the true native status message. With this version of
3137 perl, the true native child status can always be retrieved so that
3138 is not a problem. But in this case, Pl_statusvalue and errno may
3139 have different values in them.
3140 */
7a7fd8e0 3141
fb38d079 3142# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3143 STMT_START { \
2fbb330f
JM		 3144 I32 evalue = (I32)n; \
3145 if (evalue == EVMSERR) { \
3146 PL_statusvalue_vms = vaxc$errno; \
3147 PL_statusvalue = evalue; \
7a7fd8e0 3148 } else { \
2fbb330f 3149 PL_statusvalue_vms = evalue; \
fb38d079 3150 if (evalue == -1) { \
3280af22 3151 PL_statusvalue = -1; \
7a7fd8e0
JM		 3152 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3153 } else \
fb38d079 3154 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3155 set_vaxc_errno(evalue); \
fb38d079
JM		 3156 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3157 set_errno(EVMSERR); \
3158 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3159 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3160 } \
68dc0745 3161 } STMT_END
7a7fd8e0 3162
68dc0745 3163# ifdef VMSISH_STATUS
e5218da5 3164# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3165# else
e5218da5 3166# define STATUS_CURRENT STATUS_UNIX
68dc0745 3167# endif
7a7fd8e0
JM		 3168
3169 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3170 * the NATIVE status to an equivalent value. Can not be used to translate
3171 * exit code values as exit code values are not guaranteed to have any
3172 * relationship at all to errno values.
3173 * This is used when Perl is forcing errno to have a specific value.
3174 */
e5218da5 3175# define STATUS_UNIX_SET(n) \
68dc0745 3176 STMT_START { \
7a7fd8e0 3177 I32 evalue = (I32)n; \
0968cdad 3178 PL_statusvalue = evalue; \
3280af22 3179 if (PL_statusvalue != -1) { \
0968cdad
JM		 3180 if (PL_statusvalue != EVMSERR) { \
3181 PL_statusvalue &= 0xFFFF; \
3182 if (MY_POSIX_EXIT) \
3183 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3184 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3185 } \
3186 else { \
3187 PL_statusvalue_vms = vaxc$errno; \
3188 } \
68dc0745 3189 } \
0968cdad
JM		 3190 else PL_statusvalue_vms = SS$_ABORT; \
3191 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM		 3192 } STMT_END
3193
3194 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM		 3195 * the NATIVE error status based on it.
3196 *
3197 * When in the default mode to comply with the Perl VMS documentation,
3198 * 0 is a success and any other code sets the NATIVE status to a failure
3199 * code of SS$_ABORT.
fb38d079
JM		 3200 *
3201 * In the new POSIX EXIT mode, native status will be set so that the
3202 * actual exit code will can be retrieved by the calling program or
3203 * shell.
3204 *
3205 * If the exit code is not clearly a UNIX parent or child exit status,
3206 * it will be passed through as a VMS status.
7a7fd8e0
JM		 3207 */
3208
fb38d079 3209# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM		 3210 STMT_START { \
3211 I32 evalue = (I32)n; \
3212 PL_statusvalue = evalue; \
e08e1e1d
JM		 3213 if (MY_POSIX_EXIT) { \
3214 if (evalue <= 0xFF00) { \
3215 if (evalue > 0xFF) \
3216 evalue = (evalue >> child_offset_bits) & 0xFF; \
3217 PL_statusvalue_vms = \
3218 (C_FAC_POSIX | (evalue << 3 ) | \
3219 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3220 } else /* forgive them Perl, for they have sinned */ \
3221 PL_statusvalue_vms = evalue; \
3222 } else { \
3223 if (evalue == 0) \
3224 PL_statusvalue_vms = SS$_NORMAL; \
3225 else if (evalue <= 0xFF00) \
3226 PL_statusvalue_vms = SS$_ABORT; \
3227 else { /* forgive them Perl, for they have sinned */ \
3228 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3229 else PL_statusvalue_vms = vaxc$errno; \
3230 /* And obviously used a VMS status value instead of UNIX */ \
3231 PL_statusvalue = EVMSERR; \
3232 } \
3233 set_vaxc_errno(PL_statusvalue_vms); \
3234 } \
68dc0745 3235 } STMT_END
fb38d079 3236
e08e1e1d 3237
6ac6a52b
JM		 3238 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3239 * and sets the NATIVE error status based on it. This special case
3240 * is needed to maintain compatibility with past VMS behavior.
3241 *
3242 * In the default mode on VMS, this number is passed through as
3243 * both the NATIVE and UNIX status. Which makes it different
3244 * that the STATUS_UNIX_EXIT_SET.
3245 *
3246 * In the new POSIX EXIT mode, native status will be set so that the
3247 * actual exit code will can be retrieved by the calling program or
3248 * shell.
3249 *
1a3aec58
JM		 3250 * A POSIX exit code is from 0 to 255. If the exit code is higher
3251 * than this, it needs to be assumed that it is a VMS exit code and
3252 * passed through.
6ac6a52b
JM		 3253 */
3254
3255# define STATUS_EXIT_SET(n) \
3256 STMT_START { \
3257 I32 evalue = (I32)n; \
3258 PL_statusvalue = evalue; \
3259 if (MY_POSIX_EXIT) \
1a3aec58
JM		 3260 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3261 PL_statusvalue_vms = \
3262 (C_FAC_POSIX | (evalue << 3 ) | \
3263 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM		 3264 else \
3265 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3266 set_vaxc_errno(PL_statusvalue_vms); \
3267 } STMT_END
3268
fb38d079
JM		 3269
3270 /* This macro forces a success status */
7a7fd8e0
JM		 3271# define STATUS_ALL_SUCCESS \
3272 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM		 3273
3274 /* This macro forces a failure status */
7a7fd8e0
JM		 3275# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3276 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3277 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3278
68dc0745 3279#else
e5218da5 3280# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3281# if defined(WCOREDUMP)
37038d91 3282# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3283 STMT_START { \
3284 PL_statusvalue_posix = (n); \
3285 if (PL_statusvalue_posix == -1) \
3286 PL_statusvalue = -1; \
3287 else { \
3288 PL_statusvalue = \
3289 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3290 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3291 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3292 } \
3293 } STMT_END
3294# elif defined(WIFEXITED)
37038d91 3295# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3296 STMT_START { \
3297 PL_statusvalue_posix = (n); \
3298 if (PL_statusvalue_posix == -1) \
3299 PL_statusvalue = -1; \
3300 else { \
3301 PL_statusvalue = \
3302 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3303 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3304 } \
3305 } STMT_END
3306# else
37038d91 3307# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3308 STMT_START { \
3309 PL_statusvalue_posix = (n); \
3310 if (PL_statusvalue_posix == -1) \
3311 PL_statusvalue = -1; \
3312 else { \
3313 PL_statusvalue = \
3314 PL_statusvalue_posix & 0xFFFF; \
3315 } \
3316 } STMT_END
3317# endif
3318# define STATUS_UNIX_SET(n) \
68dc0745 3319 STMT_START { \
3280af22
NIS		 3320 PL_statusvalue = (n); \
3321 if (PL_statusvalue != -1) \
3322 PL_statusvalue &= 0xFFFF; \
68dc0745 3323 } STMT_END
7a7fd8e0 3324# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3325# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3326# define STATUS_CURRENT STATUS_UNIX
37038d91 3327# define STATUS_EXIT STATUS_UNIX
e5218da5
GA		 3328# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3329# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745 3330#endif
3331
cc3604b1
GS		 3332/* flags in PL_exit_flags for nature of exit() */
3333#define PERL_EXIT_EXPECTED 0x01
31d77e54 3334#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM		 3335#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3336#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3337
b79b76e0 3338#ifndef PERL_CORE
a7cb1f99 3339/* format to use for version numbers in file/directory names */
273cf8d1 3340/* XXX move to Configure? */
b79b76e0
NC		 3341/* This was only ever used for the current version, and that can be done at
3342 compile time, as PERL_FS_VERSION, so should we just delete it? */
3343# ifndef PERL_FS_VER_FMT
3344# define PERL_FS_VER_FMT "%d.%d.%d"
3345# endif
3346#endif
3347
3348#ifndef PERL_FS_VERSION
3349# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS		 3350#endif
3351
45bc9206 3352/* This defines a way to flush all output buffers. This may be a
76549fef
JH		 3353 * performance issue, so we allow people to disable it. Also, if
3354 * we are using stdio, there are broken implementations of fflush(NULL)
3355 * out there, Solaris being the most prominent.
45bc9206
GS		 3356 */
3357#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3358# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3359# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH		 3360# else
3361# ifdef FFLUSH_ALL
3362# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3363# else
c5be433b 3364# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3365# endif
66fe083f 3366# endif
45bc9206
GS		 3367#endif
3368
7766f137
GS		 3369#ifndef PERL_WAIT_FOR_CHILDREN
3370# define PERL_WAIT_FOR_CHILDREN NOOP
3371#endif
3372
ba869deb 3373/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS		 3374#ifndef PERL_SET_INTERP
3375# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3376#endif
3377
3378#ifndef PERL_GET_INTERP
3379# define PERL_GET_INTERP (PL_curinterp)
3380#endif
3381
54aff467 3382#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3383# ifdef MULTIPLICITY
ba869deb 3384# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3385# endif
ba869deb
GS		 3386# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3387#endif
3388
00f254e2 3389/*
8896765a 3390 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3391 All that is required is that the perl source does not
00f254e2
KW		 3392 use "%-p" or "%-<number>p" or "%<number>p" formats.
3393 These formats will still work in perl code.
486ec47a 3394 See comments in sv.c for further details.
8896765a 3395
8896765a 3396 Robin Barker 2005-07-14
f46d31f2 3397
00f254e2 3398 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3399*/
8896765a
RB		 3400
3401#ifndef SVf_
63ce7bf0 3402# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS		 3403#endif
3404
8896765a 3405#ifndef SVf
104abab4 3406# define SVf "-p"
d2560b70
RB		 3407#endif
3408
014ead4b 3409#ifndef SVf32
8896765a 3410# define SVf32 SVf_(32)
014ead4b
RB		 3411#endif
3412
3413#ifndef SVf256
8896765a
RB		 3414# define SVf256 SVf_(256)
3415#endif
3416
be2597df
MHM		 3417#define SVfARG(p) ((void*)(p))
3418
20023040
FC		 3419#ifndef HEKf
3420# define HEKf "2p"
3421#endif
3422
b8fa5213
FC		 3423/* Not ideal, but we cannot easily include a number in an already-numeric
3424 * format sequence. */
3425#ifndef HEKf256
3426# define HEKf256 "3p"
3427#endif
3428
20023040
FC		 3429#define HEKfARG(p) ((void*)(p))
3430
b17a0679
FC		 3431/* Takes three arguments: is_utf8, length, str */
3432#ifndef UTF8f
61608bb7 3433# define UTF8f "d%" UVuf "%4p"
b17a0679
FC		 3434#endif
3435#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3436
0f94cb1f
FC		 3437#define PNf UTF8f
3438#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3439
f46d31f2 3440#ifdef PERL_CORE
486ec47a 3441/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB		 3442# undef UVf
3443#else
170cd9e9
NC		 3444# ifndef UVf
3445# define UVf UVuf
3446# endif
d2560b70
RB		 3447#endif
3448
fcdf39cf
RGS		 3449#ifdef HASATTRIBUTE_DEPRECATED
3450# define __attribute__deprecated__ __attribute__((deprecated))
3451#endif
0dbb1585
AL		 3452#ifdef HASATTRIBUTE_FORMAT
3453# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3454#endif
3455#ifdef HASATTRIBUTE_MALLOC
77785eea 3456# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3457#endif
0dbb1585 3458#ifdef HASATTRIBUTE_NONNULL
abb2c242 3459# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3460#endif
0dbb1585 3461#ifdef HASATTRIBUTE_NORETURN
abb2c242 3462# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3463#endif
0dbb1585 3464#ifdef HASATTRIBUTE_PURE
abb2c242 3465# define __attribute__pure__ __attribute__((pure))
f22be1b8 3466#endif
0dbb1585
AL		 3467#ifdef HASATTRIBUTE_UNUSED
3468# define __attribute__unused__ __attribute__((unused))
3469#endif
3470#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3471# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH		 3472#endif
3473
0dbb1585 3474/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS		 3475#ifndef __attribute__deprecated__
3476# define __attribute__deprecated__
3477#endif
0dbb1585
AL		 3478#ifndef __attribute__format__
3479# define __attribute__format__(x,y,z)
3480#endif
f22be1b8 3481#ifndef __attribute__malloc__
abb2c242 3482# define __attribute__malloc__
f22be1b8
JH		 3483#endif
3484#ifndef __attribute__nonnull__
abb2c242 3485# define __attribute__nonnull__(a)
f22be1b8
JH		 3486#endif
3487#ifndef __attribute__noreturn__
abb2c242 3488# define __attribute__noreturn__
f22be1b8
JH		 3489#endif
3490#ifndef __attribute__pure__
abb2c242 3491# define __attribute__pure__
f22be1b8 3492#endif
0dbb1585
AL		 3493#ifndef __attribute__unused__
3494# define __attribute__unused__
3495#endif
f22be1b8 3496#ifndef __attribute__warn_unused_result__
abb2c242
JH		 3497# define __attribute__warn_unused_result__
3498#endif
3499
6d59e610
LM		 3500#ifdef I_ASSERT
3501# if !defined(DEBUGGING) && !defined(NDEBUG)
3502# define NDEBUG 1
3503# endif
cd13e623
JH		 3504# include <assert.h>
3505#endif
3506
0dbb1585
AL		 3507/* For functions that are marked as __attribute__noreturn__, it's not
3508 appropriate to call return. In either case, include the lint directive.
3509 */
3510#ifdef HASATTRIBUTE_NORETURN
ae103e09 3511# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */
0dbb1585 3512#else
ae103e09 3513# define NORETURN_FUNCTION_END NOT_REACHED; /* NOTREACHED */ return 0
abb2c242
JH		 3514#endif
3515
cdfeb707
RB		 3516/* Some OS warn on NULL format to printf */
3517#ifdef PRINTF_FORMAT_NULL_OK
3518# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3519#else
00f254e2 3520# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB		 3521#endif
3522
635aebb7 3523#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL		 3524# define EXPECT(expr,val) __builtin_expect(expr,val)
3525#else
3526# define EXPECT(expr,val) (expr)
3527#endif
6d5abc62
NC		 3528#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3529#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL		 3530#ifdef HAS_BUILTIN_CHOOSE_EXPR
3531/* placeholder */
3532#endif
b37c2d43 3533
5074d4c5
LM		 3534/* STATIC_ASSERT_GLOBAL/STATIC_ASSERT_STMT are like assert(), but for compile
3535 time invariants. That is, their argument must be a constant expression that
3536 can be verified by the compiler. This expression can contain anything that's
3537 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3538 the expression evaluates to 0, compilation fails.
3539 Because they generate no runtime code (i.e. their use is "free"), they're
3540 always active, even under non-DEBUGGING builds.
3541 STATIC_ASSERT_GLOBAL expands to a declaration and is suitable for use at
3542 file scope (outside of any function).
3543 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3544 function.
3545*/
7ea096df 3546#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610
LM		 3547/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3548 builtin in C++11.
3549*/
7ea096df 3550/* IBM XL C V11 does not support _Static_assert, no matter what <assert.h> says */
6d59e610
LM		 3551# define STATIC_ASSERT_GLOBAL(COND) static_assert(COND, #COND)
3552#else
3553/* We use a bit-field instead of an array because gcc accepts
3554 'typedef char x[n]' where n is not a compile-time constant.
3555 We want to enforce constantness.
3556*/
3557# define STATIC_ASSERT_2(COND, SUFFIX) \
3558 typedef struct { \
3559 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3560 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3561# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3562# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3563#endif
3564/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3565 error (static_assert is a declaration, and only statements can have labels).
3566*/
3567#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD		 3568
3569#ifndef __has_builtin
3570# define __has_builtin(x) 0 /* not a clang style compiler */
3571#endif
3572
3573/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3574 hint to a compiler about a statement of fact in a function call free
3575 expression, which allows the compiler to generate better machine code.
3576 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3577 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3578 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD		 3579 intrinsic function, see its documents for more details.
3580*/
3581
3582#ifndef DEBUGGING
3583# if __has_builtin(__builtin_unreachable) \
d1020b40 3584 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD		 3585# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3586# elif defined(_MSC_VER)
3587# define ASSUME(x) __assume(x)
3588# elif defined(__ARMCC_VERSION) /* untested */
3589# define ASSUME(x) __promise(x)
3590# else
3591/* a random compiler might define assert to its own special optimization token
3592 so pass it through to C lib as a last resort */
3593# define ASSUME(x) assert(x)
3594# endif
3595#else
3596# define ASSUME(x) assert(x)
3597#endif
3598
3599#define NOT_REACHED ASSUME(0)
3600
3fc1aec6 3601/* Some unistd.h's give a prototype for pause() even though
3602 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3603 below to be rejected by the compiler. Sigh.
3fc1aec6 3604*/
3605#ifdef HAS_PAUSE
3606#define Pause pause
3607#else
3608#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 3609#endif
3610
3611#ifndef IOCPARM_LEN
3612# ifdef IOCPARM_MASK
61f1c44b 3613 /* on BSDish systems we're safe */
748a9306
LW		 3614# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3615# else
61f1c44b 3616# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA		 3617 /* on Linux systems we're safe; except when we're not [perl #38223] */
3618# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3619# else
748a9306 3620 /* otherwise guess at what's safe */
61f1c44b
JVD		 3621# define IOCPARM_LEN(x) 256
3622# endif
748a9306 3623# endif
a0d0e21e
LW		 3624#endif
3625
1761cee5 3626#if defined(__CYGWIN__)
521e0776
GS		 3627/* USEMYBINMODE
3628 * This symbol, if defined, indicates that the program should
16fe6d59 3629 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS		 3630 * that a file is in "binary" mode -- that is, that no translation
3631 * of bytes occurs on read or write operations.
3632 */
36894f0b 3633# define USEMYBINMODE /**/
77a40698 3634# include <io.h> /* for setmode() prototype */
16fe6d59 3635# define my_binmode(fp, iotype, mode) \
77a40698 3636 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6 3637#endif
3638
88d10794
JH		 3639#ifdef __CYGWIN__
3640void init_os_extras(void);
3641#endif
3642
cea2e8a9
GS		 3643#ifdef UNION_ANY_DEFINITION
3644UNION_ANY_DEFINITION;
3645#else
3646union any {
3647 void* any_ptr;
3648 I32 any_i32;
ae103e09 3649 U32 any_u32;
cea2e8a9 3650 IV any_iv;
c6bf6a65 3651 UV any_uv;
cea2e8a9 3652 long any_long;
9febdf04 3653 bool any_bool;
c76ac1ee 3654 void (*any_dptr) (void*);
acfe0abc 3655 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS		 3656};
3657#endif
3658
acfe0abc 3659typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS		 3660
3661#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM		 3662#define FILTER_DATA(idx) \
3663 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3664#define FILTER_ISREADER(idx) \
3665 (PL_parser && PL_parser->rsfp_filters \
3666 && idx >= AvFILLp(PL_parser->rsfp_filters))
3667#define PERL_FILTER_EXISTS(i) \
3668 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3669 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3670
c5078cac
JH		 3671#if defined(_AIX) && !defined(_AIX43)
3672#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3673/* We cannot include <crypt.h> to get the struct crypt_data
3674 * because of setkey prototype problems when threading */
3675typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3676 /* From OSF, Not needed in AIX
3677 char C[28], D[28];
3678 */
3679 char E[48];
3680 char KS[16][48];
3681 char block[66];
3682 char iobuf[16];
3683} CRYPTD;
3684#endif /* threading */
3685#endif /* AIX */
3686
e37778c2 3687#if !defined(OS2)
2c2d71f5
JH		 3688# include "iperlsys.h"
3689#endif
504f80c1 3690
9c12f1e5 3691#ifdef __LIBCATAMOUNT__
00f254e2 3692#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS		 3693#undef HAS_GROUP
3694#define FAKE_BIT_BUCKET
3695#endif
3696
d10dc2ae
JH		 3697/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3698 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3699 * defined by Configure, despite their names being similar to the
3700 * other defines like USE_ITHREADS. Configure in fact knows nothing
3701 * about the randomised hashes. Therefore to enable/disable the hash
3702 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3703#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3704# define USE_HASH_SEED
504f80c1
JH		 3705#endif
3706
598921a7
NC		 3707/* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3708 * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3709 * it's not really needed.
3710 */
3711#if defined(WIN32)
3712# define YYTOKENTYPE
3713#endif
3714#include "perly.h"
3715
598921a7 3716
654eccd5
JD		 3717/* macros to define bit-fields in structs. */
3718#ifndef PERL_BITFIELD8
3719# define PERL_BITFIELD8 unsigned
3720#endif
3721#ifndef PERL_BITFIELD16
3722# define PERL_BITFIELD16 unsigned
3723#endif
3724#ifndef PERL_BITFIELD32
3725# define PERL_BITFIELD32 unsigned
3726#endif
3727
79072805 3728#include "sv.h"
288b8c02 3729#include "regexp.h"
378cc40b 3730#include "util.h"
8d063cd8 3731#include "form.h"
79072805 3732#include "gv.h"
dd2155a4 3733#include "pad.h"
79072805 3734#include "cv.h"
abdd5c84 3735#include "opnames.h"
79072805 3736#include "op.h"
b3ca2e83 3737#include "hv.h"
79072805
LW		 3738#include "cop.h"
3739#include "av.h"
79072805
LW		 3740#include "mg.h"
3741#include "scope.h"
4438c4b7 3742#include "warnings.h"
a0ed51b3 3743#include "utf8.h"
8d063cd8 3744
0d7d409d
DM		 3745/* these would be in doio.h if there was such a file */
3746#define my_stat() my_stat_flags(SV_GMAGIC)
3747#define my_lstat() my_lstat_flags(SV_GMAGIC)
3748
20f4945e 3749/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM		 3750#undef _XPV_HEAD
3751#undef _XPVMG_HEAD
3752#undef _XPVCV_COMMON
7fae4e64
GS		 3753
3754typedef struct _sublex_info SUBLEXINFO;
3755struct _sublex_info {
651b5b28
NC		 3756 U8 super_state; /* lexer state to save */
3757 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3758 OP *sub_op; /* "lex_op" to use */
7cc34111 3759 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS		 3760};
3761
199e78b7
DM		 3762#include "parser.h"
3763
455ece5e 3764typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3765
2260ab51
KW		 3766#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3767
3768/* These have to be predeclared, as they are used in proto.h which is #included
3769 * before their definitions in regcomp.h. */
3770
3771struct scan_data_t;
7dcac5f6
KW		 3772typedef struct regnode_charclass regnode_charclass;
3773
2260ab51 3774struct regnode_charclass_class;
d1d040e5
KW		 3775
3776/* A hopefully less confusing name. The sub-classes are all Posix classes only
3777 * used under /l matching */
3778typedef struct regnode_charclass_class regnode_charclass_posixl;
3779
b8f7bb16 3780typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW		 3781typedef struct RExC_state_t RExC_state_t;
3782struct _reg_trie_data;
76e3520e 3783
2260ab51
KW		 3784#endif
3785
5f7fde29
GS		 3786struct ptr_tbl_ent {
3787 struct ptr_tbl_ent* next;
53c1dcc0 3788 const void* oldval;
5f7fde29 3789 void* newval;
d18c6117
GS		 3790};
3791
5f7fde29
GS		 3792struct ptr_tbl {
3793 struct ptr_tbl_ent** tbl_ary;
3794 UV tbl_max;
3795 UV tbl_items;
db93c0c4
NC		 3796 struct ptr_tbl_arena *tbl_arena;
3797 struct ptr_tbl_ent *tbl_arena_next;
3798 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS		 3799};
3800
fe14fcc3
LW		 3801#if defined(htonl) && !defined(HAS_HTONL)
3802#define HAS_HTONL
ae986130 3803#endif
fe14fcc3
LW		 3804#if defined(htons) && !defined(HAS_HTONS)
3805#define HAS_HTONS
ae986130 3806#endif
fe14fcc3
LW		 3807#if defined(ntohl) && !defined(HAS_NTOHL)
3808#define HAS_NTOHL
ae986130 3809#endif
fe14fcc3
LW		 3810#if defined(ntohs) && !defined(HAS_NTOHS)
3811#define HAS_NTOHS
ae986130 3812#endif
fe14fcc3 3813#ifndef HAS_HTONL
fe14fcc3
LW		 3814#define HAS_HTONS
3815#define HAS_HTONL
3816#define HAS_NTOHS
3817#define HAS_NTOHL
8e2d7c44
NC		 3818# if (BYTEORDER & 0xffff) == 0x4321
3819/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3820 re-order their values. However, to behave identically to the alternative
3821 implementations, they should truncate to the correct size. */
3822# define ntohl(x) ((x)&0xFFFFFFFF)
3823# define htonl(x) ntohl(x)
3824# define ntohs(x) ((x)&0xFFFF)
3825# define htons(x) ntohs(x)
e4b03fed
NC		 3826# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3827
3828/* Note that we can't straight out declare our own htonl and htons because
3829 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3830 to avoid the overhead of initialising the socket subsystem, but the headers
3831 that *declare* the various functions are still seen. If we declare our own
3832 htonl etc they will clash with the declarations in the Win32 headers. */
3833
3834PERL_STATIC_INLINE U32
3835my_swap32(const U32 x) {
3836 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3837 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3838}
3839
3840PERL_STATIC_INLINE U16
3841my_swap16(const U16 x) {
3842 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3843}
3844
3845# define htonl(x) my_swap32(x)
3846# define ntohl(x) my_swap32(x)
3847# define ntohs(x) my_swap16(x)
3848# define htons(x) my_swap16(x)
8e2d7c44 3849# else
691a44df
NC		 3850# error "Unsupported byteorder"
3851/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3852 the error message. Please check the value of the macro BYTEORDER, as defined
3853 in config.h. The values of BYTEORDER we expect are
3854
3855 big endian little endian
3856 32 bit 0x4321 0x1234
3857 64 bit 0x87654321 0x12345678
3858
3859 If you have a system with a different byte order, please see
3860 pod/perlhack.pod for how to submit a patch to add supporting code.
3861*/
3862# endif
a687059c
LW		 3863#endif
3864
988174c1
LW		 3865/*
3866 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3867 * -DWS
3868 */
5ae72479 3869#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC		 3870/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3871 re-order their values. However, to behave identically to the alternative
3872 implementations, they should truncate to the correct size. */
3873# define vtohl(x) ((x)&0xFFFFFFFF)
3874# define vtohs(x) ((x)&0xFFFF)
3875# define htovl(x) vtohl(x)
3876# define htovs(x) vtohs(x)
545872c5 3877#elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW		 3878# define vtohl(x) ((((x)&0xFF)<<24) \
3879 +(((x)>>24)&0xFF) \
3880 +(((x)&0x0000FF00)<<8) \
3881 +(((x)&0x00FF0000)>>8) )
3882# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3883# define htovl(x) vtohl(x)
3884# define htovs(x) vtohs(x)
545872c5
NC		 3885#else
3886# error "Unsupported byteorder"
3887/* If you have need for current perl on PDP-11 or similar, and can help test
3888 that blead keeps working on a mixed-endian system, then see
3889 pod/perlhack.pod for how to submit patches to things working again. */
2a8c3029 3890#endif
988174c1 3891
3bb7c1b4
JH		 3892/* *MAX Plus 1. A floating point value.
3893 Hopefully expressed in a way that dodgy floating point can't mess up.
3894 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3895 is added to it
3896 May find that some broken compiler will want the value cast to I32.
3897 [after the shift, as signed >> may not be as secure as unsigned >>]
3898*/
3899#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3900#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3901/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3902 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3903 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3904*/
3905#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3906
3bb7c1b4
JH		 3907#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3908#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3909#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3910
3911/* This may look like unnecessary jumping through hoops, but converting
3912 out of range floating point values to integers *is* undefined behaviour,
3913 and it is starting to bite.
3914*/
3915#ifndef CAST_INLINE
65202027 3916#define I_32(what) (cast_i32((NV)(what)))
3bb7c1b4 3917#define U_32(what) (cast_ulong((NV)(what)))
65202027
DS		 3918#define I_V(what) (cast_iv((NV)(what)))
3919#define U_V(what) (cast_uv((NV)(what)))
3bb7c1b4
JH		 3920#else
3921#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3922 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3923 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3924#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3925 : ((n) < U32_MAX_P1 ? (U32) (n) \
3926 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
5d9574c1
DM		 3927#define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3928 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3bb7c1b4 3929 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
5d9574c1
DM		 3930#define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3931 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3bb7c1b4
JH		 3932 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3933#endif
3934
3935#define U_S(what) ((U16)U_32(what))
3936#define U_I(what) ((unsigned int)U_32(what))
3937#define U_L(what) U_32(what)
ed6116ce 3938
ed140128
AD		 3939#ifdef HAS_SIGNBIT
3940# define Perl_signbit signbit
3941#endif
3942
2d4389e4
JH		 3943/* These do not care about the fractional part, only about the range. */
3944#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
24db6c0d 3945#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2d4389e4 3946
25da4f38
IZ		 3947/* Used with UV/IV arguments: */
3948 /* XXXX: need to speed it up */
3949#define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3950#define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3951
352d5a3a
LW		 3952#ifndef MAXSYSFD
3953# define MAXSYSFD 2
3954#endif
ee0007ab 3955
79072805 3956#ifndef __cplusplus
e37d7e38 3957#if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
20ce7b12
GS		 3958Uid_t getuid (void);
3959Uid_t geteuid (void);
3960Gid_t getgid (void);
3961Gid_t getegid (void);
79072805 3962#endif
e1caacb4 3963#endif
8d063cd8 3964
0c30d9ec 3965#ifndef Perl_debug_log
bf49b057
GS		 3966# define Perl_debug_log PerlIO_stderr()
3967#endif
3968
3969#ifndef Perl_error_log
3970# define Perl_error_log (PL_stderrgv \
6b78add2 3971 && isGV(PL_stderrgv) \
01bb7c6d 3972 && GvIOp(PL_stderrgv) \
42de951c 3973 && IoOFP(GvIOp(PL_stderrgv)) \
bf49b057
GS		 3974 ? IoOFP(GvIOp(PL_stderrgv)) \
3975 : PerlIO_stderr())
0c30d9ec 3976#endif
3967c732 3977
aea4f609
DM		 3978
3979#define DEBUG_p_FLAG 0x00000001 /* 1 */
3980#define DEBUG_s_FLAG 0x00000002 /* 2 */
3981#define DEBUG_l_FLAG 0x00000004 /* 4 */
3982#define DEBUG_t_FLAG 0x00000008 /* 8 */
3983#define DEBUG_o_FLAG 0x00000010 /* 16 */
3984#define DEBUG_c_FLAG 0x00000020 /* 32 */
3985#define DEBUG_P_FLAG 0x00000040 /* 64 */
3986#define DEBUG_m_FLAG 0x00000080 /* 128 */
3987#define DEBUG_f_FLAG 0x00000100 /* 256 */
3988#define DEBUG_r_FLAG 0x00000200 /* 512 */
3989#define DEBUG_x_FLAG 0x00000400 /* 1024 */
3990#define DEBUG_u_FLAG 0x00000800 /* 2048 */
88d2d28a
JC		 3991/* U is reserved for Unofficial, exploratory hacking */
3992#define DEBUG_U_FLAG 0x00001000 /* 4096 */
aea4f609
DM		 3993#define DEBUG_H_FLAG 0x00002000 /* 8192 */
3994#define DEBUG_X_FLAG 0x00004000 /* 16384 */
3995#define DEBUG_D_FLAG 0x00008000 /* 32768 */
56967202 3996#define DEBUG_S_FLAG 0x00010000 /* 65536 */
aea4f609 3997#define DEBUG_T_FLAG 0x00020000 /* 131072 */
04932ac8 3998#define DEBUG_R_FLAG 0x00040000 /* 262144 */
1045810a 3999#define DEBUG_J_FLAG 0x00080000 /* 524288 */
d6721266 4000#define DEBUG_v_FLAG 0x00100000 /*1048576 */
46187eeb 4001#define DEBUG_C_FLAG 0x00200000 /*2097152 */
ecae49c0 4002#define DEBUG_A_FLAG 0x00400000 /*4194304 */
a3c98653 4003#define DEBUG_q_FLAG 0x00800000 /*8388608 */
cc8773c0
CS		 4004#define DEBUG_M_FLAG 0x01000000 /*16777216*/
4005#define DEBUG_B_FLAG 0x02000000 /*33554432*/
69014004
KW		 4006#define DEBUG_L_FLAG 0x04000000 /*67108864*/
4007#define DEBUG_MASK 0x07FFEFFF /* mask of all the standard flags */
aea4f609
DM		 4008
4009#define DEBUG_DB_RECURSE_FLAG 0x40000000
1045810a
IZ		 4010#define DEBUG_TOP_FLAG 0x80000000 /* XXX what's this for ??? Signal
4011 that something was done? */
aea4f609 4012
bd16a5f0
IZ		 4013# define DEBUG_p_TEST_ (PL_debug & DEBUG_p_FLAG)
4014# define DEBUG_s_TEST_ (PL_debug & DEBUG_s_FLAG)
4015# define DEBUG_l_TEST_ (PL_debug & DEBUG_l_FLAG)
4016# define DEBUG_t_TEST_ (PL_debug & DEBUG_t_FLAG)
4017# define DEBUG_o_TEST_ (PL_debug & DEBUG_o_FLAG)
4018# define DEBUG_c_TEST_ (PL_debug & DEBUG_c_FLAG)
4019# define DEBUG_P_TEST_ (PL_debug & DEBUG_P_FLAG)
4020# define DEBUG_m_TEST_ (PL_debug & DEBUG_m_FLAG)
4021# define DEBUG_f_TEST_ (PL_debug & DEBUG_f_FLAG)
4022# define DEBUG_r_TEST_ (PL_debug & DEBUG_r_FLAG)
4023# define DEBUG_x_TEST_ (PL_debug & DEBUG_x_FLAG)
4024# define DEBUG_u_TEST_ (PL_debug & DEBUG_u_FLAG)
88d2d28a 4025# define DEBUG_U_TEST_ (PL_debug & DEBUG_U_FLAG)
bd16a5f0
IZ		 4026# define DEBUG_H_TEST_ (PL_debug & DEBUG_H_FLAG)
4027# define DEBUG_X_TEST_ (PL_debug & DEBUG_X_FLAG)
4028# define DEBUG_D_TEST_ (PL_debug & DEBUG_D_FLAG)
56967202 4029# define DEBUG_S_TEST_ (PL_debug & DEBUG_S_FLAG)
bd16a5f0
IZ		 4030# define DEBUG_T_TEST_ (PL_debug & DEBUG_T_FLAG)
4031# define DEBUG_R_TEST_ (PL_debug & DEBUG_R_FLAG)
1045810a 4032# define DEBUG_J_TEST_ (PL_debug & DEBUG_J_FLAG)
d6721266 4033# define DEBUG_v_TEST_ (PL_debug & DEBUG_v_FLAG)
46187eeb 4034# define DEBUG_C_TEST_ (PL_debug & DEBUG_C_FLAG)
ecae49c0
NC		 4035# define DEBUG_A_TEST_ (PL_debug & DEBUG_A_FLAG)
4036# define DEBUG_q_TEST_ (PL_debug & DEBUG_q_FLAG)
d7c0d282 4037# define DEBUG_M_TEST_ (PL_debug & DEBUG_M_FLAG)
cc8773c0 4038# define DEBUG_B_TEST_ (PL_debug & DEBUG_B_FLAG)
69014004 4039# define DEBUG_L_TEST_ (PL_debug & DEBUG_L_FLAG)
dd2155a4 4040# define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
7949c6f5 4041# define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
ad9e76a8 4042# define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
bd16a5f0 4043
3967c732 4044#ifdef DEBUGGING
aea4f609 4045
bd16a5f0
IZ		 4046# define DEBUG_p_TEST DEBUG_p_TEST_
4047# define DEBUG_s_TEST DEBUG_s_TEST_
4048# define DEBUG_l_TEST DEBUG_l_TEST_
4049# define DEBUG_t_TEST DEBUG_t_TEST_
4050# define DEBUG_o_TEST DEBUG_o_TEST_
4051# define DEBUG_c_TEST DEBUG_c_TEST_
4052# define DEBUG_P_TEST DEBUG_P_TEST_
4053# define DEBUG_m_TEST DEBUG_m_TEST_
4054# define DEBUG_f_TEST DEBUG_f_TEST_
4055# define DEBUG_r_TEST DEBUG_r_TEST_
4056# define DEBUG_x_TEST DEBUG_x_TEST_
4057# define DEBUG_u_TEST DEBUG_u_TEST_
88d2d28a 4058# define DEBUG_U_TEST DEBUG_U_TEST_
bd16a5f0
IZ		 4059# define DEBUG_H_TEST DEBUG_H_TEST_
4060# define DEBUG_X_TEST DEBUG_X_TEST_
4061# define DEBUG_D_TEST DEBUG_D_TEST_
56967202 4062# define DEBUG_S_TEST DEBUG_S_TEST_
bd16a5f0
IZ		 4063# define DEBUG_T_TEST DEBUG_T_TEST_
4064# define DEBUG_R_TEST DEBUG_R_TEST_
1045810a 4065# define DEBUG_J_TEST DEBUG_J_TEST_
d6721266 4066# define DEBUG_v_TEST DEBUG_v_TEST_
46187eeb 4067# define DEBUG_C_TEST DEBUG_C_TEST_
ecae49c0 4068# define DEBUG_A_TEST DEBUG_A_TEST_
a3c98653 4069# define DEBUG_q_TEST DEBUG_q_TEST_
d7c0d282 4070# define DEBUG_M_TEST DEBUG_M_TEST_
cc8773c0 4071# define DEBUG_B_TEST DEBUG_B_TEST_
69014004 4072# define DEBUG_L_TEST DEBUG_L_TEST_
7949c6f5
JC		 4073# define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4074# define DEBUG_Uv_TEST DEBUG_Uv_TEST_
ad9e76a8 4075# define DEBUG_Pv_TEST DEBUG_Pv_TEST_
aea4f609 4076
488b0c7a 4077# define PERL_DEB(a) a
11f9ab1a 4078# define PERL_DEB2(a,b) a
488b0c7a 4079# define PERL_DEBUG(a) if (PL_debug) a
aea4f609
DM		 4080# define DEBUG_p(a) if (DEBUG_p_TEST) a
4081# define DEBUG_s(a) if (DEBUG_s_TEST) a
4082# define DEBUG_l(a) if (DEBUG_l_TEST) a
4083# define DEBUG_t(a) if (DEBUG_t_TEST) a
4084# define DEBUG_o(a) if (DEBUG_o_TEST) a
4085# define DEBUG_c(a) if (DEBUG_c_TEST) a
4086# define DEBUG_P(a) if (DEBUG_P_TEST) a
4087
969058bb
VK		 4088 /* Temporarily turn off memory debugging in case the a
4089 * does memory allocation, either directly or indirectly. */
acfe0abc 4090# define DEBUG_m(a) \
0b250b9e 4091 STMT_START { \
aea4f609 4092 if (PERL_GET_INTERP) { dTHX; if (DEBUG_m_TEST) {PL_debug&=~DEBUG_m_FLAG; a; PL_debug|=DEBUG_m_FLAG;} } \
0b250b9e 4093 } STMT_END
aea4f609 4094
5f80b19c
AMS		 4095# define DEBUG__(t, a) \
4096 STMT_START { \
4097 if (t) STMT_START {a;} STMT_END; \
4098 } STMT_END
4099
4100# define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
f9f4320a 4101#ifndef PERL_EXT_RE_BUILD
5f80b19c 4102# define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
f9f4320a
YO		 4103#else
4104# define DEBUG_r(a) STMT_START {a;} STMT_END
4105#endif /* PERL_EXT_RE_BUILD */
5f80b19c
AMS		 4106# define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4107# define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
88d2d28a 4108# define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
5f80b19c
AMS		 4109# define DEBUG_H(a) DEBUG__(DEBUG_H_TEST, a)
4110# define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4111# define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
7949c6f5
JC		 4112# define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4113# define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
ad9e76a8 4114# define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
aea4f609 4115
56967202 4116# define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
5f80b19c
AMS		 4117# define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4118# define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
d6721266 4119# define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
46187eeb 4120# define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
ecae49c0
NC		 4121# define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4122# define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
d7c0d282 4123# define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
cc8773c0 4124# define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
69014004 4125# define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
aea4f609
DM		 4126
4127#else /* DEBUGGING */
4128
4129# define DEBUG_p_TEST (0)
4130# define DEBUG_s_TEST (0)
4131# define DEBUG_l_TEST (0)
4132# define DEBUG_t_TEST (0)
4133# define DEBUG_o_TEST (0)
4134# define DEBUG_c_TEST (0)
4135# define DEBUG_P_TEST (0)
4136# define DEBUG_m_TEST (0)
4137# define DEBUG_f_TEST (0)
4138# define DEBUG_r_TEST (0)
4139# define DEBUG_x_TEST (0)
4140# define DEBUG_u_TEST (0)
88d2d28a 4141# define DEBUG_U_TEST (0)
aea4f609
DM		 4142# define DEBUG_H_TEST (0)
4143# define DEBUG_X_TEST (0)
4144# define DEBUG_D_TEST (0)
56967202 4145# define DEBUG_S_TEST (0)
aea4f609 4146# define DEBUG_T_TEST (0)
04932ac8 4147# define DEBUG_R_TEST (0)
1045810a 4148# define DEBUG_J_TEST (0)
d6721266 4149# define DEBUG_v_TEST (0)
46187eeb 4150# define DEBUG_C_TEST (0)
ecae49c0
NC		 4151# define DEBUG_A_TEST (0)
4152# define DEBUG_q_TEST (0)
d7c0d282 4153# define DEBUG_M_TEST (0)
cc8773c0 4154# define DEBUG_B_TEST (0)
69014004 4155# define DEBUG_L_TEST (0)
7949c6f5
JC		 4156# define DEBUG_Xv_TEST (0)
4157# define DEBUG_Uv_TEST (0)
ad9e76a8 4158# define DEBUG_Pv_TEST (0)
aea4f609 4159
488b0c7a 4160# define PERL_DEB(a)
11f9ab1a 4161# define PERL_DEB2(a,b) b
488b0c7a 4162# define PERL_DEBUG(a)
aea4f609
DM		 4163# define DEBUG_p(a)
4164# define DEBUG_s(a)
4165# define DEBUG_l(a)
4166# define DEBUG_t(a)
4167# define DEBUG_o(a)
4168# define DEBUG_c(a)
4169# define DEBUG_P(a)
4170# define DEBUG_m(a)
4171# define DEBUG_f(a)
4172# define DEBUG_r(a)
4173# define DEBUG_x(a)
4174# define DEBUG_u(a)
88d2d28a 4175# define DEBUG_U(a)
aea4f609
DM		 4176# define DEBUG_H(a)
4177# define DEBUG_X(a)
4178# define DEBUG_D(a)
56967202 4179# define DEBUG_S(a)
aea4f609 4180# define DEBUG_T(a)
04932ac8 4181# define DEBUG_R(a)
d6721266 4182# define DEBUG_v(a)
46187eeb 4183# define DEBUG_C(a)
ecae49c0
NC		 4184# define DEBUG_A(a)
4185# define DEBUG_q(a)
d7c0d282 4186# define DEBUG_M(a)
cc8773c0 4187# define DEBUG_B(a)
69014004 4188# define DEBUG_L(a)
7949c6f5
JC		 4189# define DEBUG_Xv(a)
4190# define DEBUG_Uv(a)
ad9e76a8 4191# define DEBUG_Pv(a)
aea4f609
DM		 4192#endif /* DEBUGGING */
4193
4194
b4ab917c 4195#define DEBUG_SCOPE(where) \
d9f81b50 4196 DEBUG_l( \
1c98cc53
DM		 4197 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4198 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
d9f81b50 4199 __FILE__, __LINE__));
b4ab917c 4200
de84dc04 4201/* Keep the old croak based assert for those who want it, and as a fallback if
27ceb597 4202 the platform is so heretically non-ANSI that it can't assert. */
14befaf4 4203
11f9ab1a 4204#define Perl_assert(what) PERL_DEB2( \
2b057284 4205 ((what) ? ((void) 0) : \
67eb4d30 4206 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
60b9f5a7 4207 "\", line %d", STRINGIFY(what), __LINE__), \
11f9ab1a 4208 (void) 0)), ((void)0))
de84dc04 4209
81d52ecd
JH		 4210/* assert() gets defined if DEBUGGING (and I_ASSERT).
4211 * If no DEBUGGING, the <assert.h> has not been included. */
de84dc04
NC		 4212#ifndef assert
4213# define assert(what) Perl_assert(what)
a446a88f 4214#endif
c7724415
FC		 4215#ifdef DEBUGGING
4216# define assert_(what) assert(what),
4217#else
4218# define assert_(what)
4219#endif
8d063cd8 4220
450a55e4 4221struct ufuncs {
24f81a43
DM		 4222 I32 (*uf_val)(pTHX_ IV, SV*);
4223 I32 (*uf_set)(pTHX_ IV, SV*);
a0d0e21e 4224 IV uf_index;
450a55e4
LW		 4225};
4226
14befaf4 4227/* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
24f81a43
DM		 4228 * XS code wanting to be backward compatible can do something
4229 * like the following:
c745e42c 4230
24f81a43 4231#ifndef PERL_MG_UFUNC
24f81a43
DM		 4232#define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4233#endif
4234
4235static PERL_MG_UFUNC(foo_get, index, val)
4236{
4237 sv_setsv(val, ...);
4238 return TRUE;
4239}
4240
4241-- Doug MacEachern
4242
4243*/
4244
fc9c74e6 4245#ifndef PERL_MG_UFUNC
24f81a43 4246#define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
fc9c74e6 4247#endif
24f81a43 4248
fe14fcc3 4249/* Fix these up for __STDC__ */
68dc0745 4250#ifndef DONT_DECLARE_STD
20ce7b12 4251char *mktemp (char*);
37bd1396 4252#ifndef atof
20ce7b12 4253double atof (const char*);
a0d0e21e 4254#endif
37bd1396 4255#endif
79072805 4256
352d5a3a 4257#ifndef STANDARD_C
fe14fcc3 4258/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 4259Time_t time();
8d063cd8 4260struct tm *gmtime(), *localtime();
043fec90 4261#if defined(OEMVS)
9d116dd7
JH		 4262char *(strchr)(), *(strrchr)();
4263char *(strcpy)(), *(strcat)();
4264#else
93a17b20 4265char *strchr(), *strrchr();
378cc40b 4266char *strcpy(), *strcat();
9d116dd7 4267#endif
352d5a3a 4268#endif /* ! STANDARD_C */
8d063cd8 4269
79072805
LW		 4270
4271#ifdef I_MATH
4272# include <math.h>
a80f53e7
CB		 4273# ifdef __VMS
4274 /* isfinite and others are here rather than in math.h as C99 stipulates */
4275# include <fp.h>
4276# endif
79072805 4277#else
32f822de 4278START_EXTERN_C
20ce7b12
GS		 4279 double exp (double);
4280 double log (double);
4281 double log10 (double);
4282 double sqrt (double);
4283 double frexp (double,int*);
4284 double ldexp (double,int);
4285 double modf (double,double*);
4286 double sin (double);
4287 double cos (double);
4288 double atan2 (double,double);
4289 double pow (double,double);
32f822de 4290END_EXTERN_C
79072805
LW		 4291#endif
4292
d1183257
JH		 4293/* If you are thinking of using HUGE_VAL for infinity, or using
4294 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
4295 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
4296 * and the math functions might be just generating DBL_MAX, or even
4297 * zero. */
4298
b4a3b1ad
JH		 4299#if !defined(NV_INF) && defined(USE_LONG_DOUBLE)
4300# if !defined(NV_INF) && defined(LDBL_INFINITY)
4301# define NV_INF LDBL_INFINITY
4302# endif
4303# if !defined(NV_INF) && defined(INFINITYL)
4304# define NV_INF INFINITYL
4305# endif
aa8b85de
JH		 4306#endif
4307#if !defined(NV_INF) && defined(DBL_INFINITY)
4308# define NV_INF (NV)DBL_INFINITY
4309#endif
4310#if !defined(NV_INF) && defined(INFINITY)
4311# define NV_INF (NV)INFINITY
4312#endif
4313#if !defined(NV_INF) && defined(INF)
4314# define NV_INF (NV)INF
4315#endif
a985cadd 4316#if !defined(NV_INF)
67aa9fab
JH		 4317# if INTSIZE == 4
4318/* At this point we assume the IEEE 754 floating point (and of course,
4319 * we also assume a floating point format that can encode an infinity).
4320 * We will coerce an int32 (which will encode the infinity) into
4321 * a 32-bit float, which will then be cast into NV.
4322 *
4323 * Note that we intentionally use a float and 32-bit int, instead of
4324 * shifting a small integer into a full IV, and from that into a full
4325 * NV, because:
4326 *
4327 * (1) an IV might not be wide enough to cover all the bits of an NV.
4328 * (2) the exponent part (including the infinity and nan bits) of a NV
4329 * might be wider than just 16 bits.
4330 *
4331 * Below the NV_NAN logic has similar __PL_nan_u fallback, the only
4332 * difference being the int32 constant being coerced. */
4333# define __PL_inf_float_int32 0x7F800000
4334static const union { unsigned int __i; float __f; } __PL_inf_u =
4335 { __PL_inf_float_int32 };
4336# define NV_INF ((NV)(__PL_inf_u.__f))
4337# endif
4338#endif
4339#if !defined(NV_INF)
d1183257 4340# define NV_INF ((NV)1.0/0.0) /* Some compilers will warn. */
aa8b85de
JH		 4341#endif
4342
4343#if !defined(NV_NAN) && defined(USE_LONG_DOUBLE)
4344# if !defined(NV_NAN) && defined(LDBL_NAN)
4345# define NV_NAN LDBL_NAN
4346# endif
b4a3b1ad
JH		 4347# if !defined(NV_NAN) && defined(NANL)
4348# define NV_NAN NANL
4349# endif
aa8b85de
JH		 4350# if !defined(NV_NAN) && defined(LDBL_QNAN)
4351# define NV_NAN LDBL_QNAN
4352# endif
aa8b85de
JH		 4353#endif
4354#if !defined(NV_NAN) && defined(DBL_NAN)
4355# define NV_NAN (NV)DBL_NAN
4356#endif
4357#if !defined(NV_NAN) && defined(DBL_QNAN)
4358# define NV_NAN (NV)DBL_QNAN
4359#endif
aa8b85de
JH		 4360#if !defined(NV_NAN) && defined(NAN)
4361# define NV_NAN (NV)NAN
4362#endif
b4a3b1ad
JH		 4363#if !defined(NV_NAN) && defined(QNAN)
4364# define NV_NAN (NV)QNAN
4365#endif
498b0fa9
JH		 4366#if !defined(NV_NAN) && defined(I_SUNMATH)
4367# define NV_NAN (NV)quiet_nan()
498b0fa9 4368#endif
67aa9fab
JH		 4369#if !defined(NV_NAN)
4370# if INTSIZE == 4
4371/* See the discussion near __PL_inf_u. */
4372# define __PL_nan_float_int32 0x7FC00000
4373static const union { unsigned int __i; float __f; } __PL_nan_u =
4374 { __PL_nan_float_int32 };
4375# define NV_NAN ((NV)(__PL_nan_u.__f))
4376# endif
4377#endif
4378#if !defined(NV_NAN)
d1183257 4379# define NV_NAN ((NV)0.0/0.0) /* Some compilers will warn. */
d074b8ed 4380#endif
5c682410
JH		 4381/* Do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
4382 * Though IEEE-754-logically correct, some compilers (like Visual C 2003)
4383 * falsely misoptimize that to zero (x-x is zero, right?) */
aa8b85de 4384
a0d0e21e 4385#ifndef __cplusplus
f05550c0 4386# if !defined(WIN32) && !defined(VMS)
10bc17b6 4387#ifndef crypt
20ce7b12 4388char *crypt (const char*, const char*);
10bc17b6 4389#endif
f05550c0 4390# endif /* !WIN32 */
26618a56
GS		 4391# ifndef DONT_DECLARE_STD
4392# ifndef getenv
20ce7b12 4393char *getenv (const char*);
26618a56 4394# endif /* !getenv */
739a0b84 4395# if !defined(HAS_LSEEK_PROTO) && !defined(__hpux)
0fc67700 4396# ifdef _FILE_OFFSET_BITS
28ca6303 4397# if _FILE_OFFSET_BITS == 64
20ce7b12 4398Off_t lseek (int,Off_t,int);
0fc67700
JH		 4399# endif
4400# endif
bf0c440f 4401# endif
26618a56 4402# endif /* !DONT_DECLARE_STD */
e37d7e38
SH		 4403# ifndef WIN32
4404# ifndef getlogin
20ce7b12 4405char *getlogin (void);
e37d7e38
SH		 4406# endif
4407# endif /* !WIN32 */
26618a56 4408#endif /* !__cplusplus */
79072805 4409
7a7fd8e0
JM		 4410/* Fixme on VMS. This needs to be a run-time, not build time options */
4411/* Also rename() is affected by this */
16d20bd9 4412#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 4413#define UNLINK unlnk
083639a9 4414I32 unlnk (pTHX_ const char*);
8d063cd8 4415#else
80252599 4416#define UNLINK PerlLIO_unlink
8d063cd8 4417#endif
a687059c 4418
fa0a29af
JH		 4419/* some versions of glibc are missing the setresuid() proto */
4420#if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
640374d0
JH		 4421int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4422#endif
fa0a29af
JH		 4423/* some versions of glibc are missing the setresgid() proto */
4424#if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
640374d0
JH		 4425int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4426#endif
4427
fe14fcc3 4428#ifndef HAS_SETREUID
85e6fe83
LW		 4429# ifdef HAS_SETRESUID
4430# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4431# define HAS_SETREUID
4432# endif
a687059c 4433#endif
fe14fcc3 4434#ifndef HAS_SETREGID
85e6fe83
LW		 4435# ifdef HAS_SETRESGID
4436# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4437# define HAS_SETREGID
4438# endif
a687059c 4439#endif
ee0007ab 4440
d543acb6 4441/* Sighandler_t defined in iperlsys.h */
ff68c719 4442
4443#ifdef HAS_SIGACTION
4444typedef struct sigaction Sigsave_t;
4445#else
4446typedef Sighandler_t Sigsave_t;
4447#endif
4448
ee0007ab
LW		 4449#define SCAN_DEF 0
4450#define SCAN_TR 1
4451#define SCAN_REPL 2
79072805
LW		 4452
4453#ifdef DEBUGGING
4633a7c4 4454# ifndef register
a0d0e21e
LW		 4455# define register
4456# endif
cea2e8a9 4457# define RUNOPS_DEFAULT Perl_runops_debug
79072805 4458#else
cea2e8a9 4459# define RUNOPS_DEFAULT Perl_runops_standard
79072805
LW		 4460#endif
4461
97cb92d6 4462#if defined(USE_PERLIO)
0934c9d9 4463EXTERN_C void PerlIO_teardown(void);
2f44961c 4464# ifdef USE_ITHREADS
6cb8cb21
RGS		 4465# define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4466# define PERLIO_TERM \
4467 STMT_START { \
d0820ef1 4468 PerlIO_teardown(); \
6cb8cb21
RGS		 4469 MUTEX_DESTROY(&PL_perlio_mutex);\
4470 } STMT_END
4471# else
4472# define PERLIO_INIT
d0820ef1 4473# define PERLIO_TERM PerlIO_teardown()
6cb8cb21 4474# endif
6b29934b
NC		 4475#else
4476# define PERLIO_INIT
4477# define PERLIO_TERM
6cb8cb21
RGS		 4478#endif
4479
18f739ee 4480#ifdef MYMALLOC
772fe5b3 4481# ifdef MUTEX_INIT_CALLS_MALLOC
3541dd58
HM		 4482# define MALLOC_INIT \
4483 STMT_START { \
4484 PL_malloc_mutex = NULL; \
4485 MUTEX_INIT(&PL_malloc_mutex); \
4486 } STMT_END
4487# define MALLOC_TERM \
4488 STMT_START { \
4489 perl_mutex tmp = PL_malloc_mutex; \
4490 PL_malloc_mutex = NULL; \
4491 MUTEX_DESTROY(&tmp); \
4492 } STMT_END
4493# else
4494# define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4495# define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4496# endif
18f739ee
IZ		 4497#else
4498# define MALLOC_INIT
4499# define MALLOC_TERM
4500#endif
4501
cd1541b2 4502#if defined(PERL_IMPLICIT_CONTEXT)
7cb608b5
NC		 4503
4504struct perl_memory_debug_header;
cd1541b2
NC		 4505struct perl_memory_debug_header {
4506 tTHX interpreter;
b001a0d1 4507# if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
cd1541b2 4508 MEM_SIZE size;
cd1541b2 4509# endif
7cb608b5
NC		 4510 struct perl_memory_debug_header *prev;
4511 struct perl_memory_debug_header *next;
b001a0d1
FC		 4512# ifdef PERL_DEBUG_READONLY_COW
4513 bool readonly;
4514# endif
4515};
4516
4517#elif defined(PERL_DEBUG_READONLY_COW)
4518
4519struct perl_memory_debug_header;
4520struct perl_memory_debug_header {
4521 MEM_SIZE size;
cd1541b2
NC		 4522};
4523
b001a0d1
FC		 4524#endif
4525
60175f94 4526#if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
b001a0d1 4527
a78adc84
DM		 4528# define PERL_MEMORY_DEBUG_HEADER_SIZE \
4529 (sizeof(struct perl_memory_debug_header) + \
cd1541b2
NC		 4530 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4531 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4532
d8fca402 4533#else
a78adc84 4534# define PERL_MEMORY_DEBUG_HEADER_SIZE 0
cd1541b2
NC		 4535#endif
4536
7cb608b5 4537#ifdef PERL_TRACK_MEMPOOL
b001a0d1 4538# ifdef PERL_DEBUG_READONLY_COW
7cb608b5
NC		 4539# define INIT_TRACK_MEMPOOL(header, interp) \
4540 STMT_START { \
4541 (header).interpreter = (interp); \
4542 (header).prev = (header).next = &(header); \
b001a0d1 4543 (header).readonly = 0; \
7cb608b5 4544 } STMT_END
b001a0d1
FC		 4545# else
4546# define INIT_TRACK_MEMPOOL(header, interp) \
4547 STMT_START { \
4548 (header).interpreter = (interp); \
4549 (header).prev = (header).next = &(header); \
4550 } STMT_END
4551# endif
4552# else
7cb608b5
NC		 4553# define INIT_TRACK_MEMPOOL(header, interp)
4554#endif
4555
1cd66f7c
DD		 4556#ifdef I_MALLOCMALLOC
4557/* Needed for malloc_size(), malloc_good_size() on some systems */
4558# include <malloc/malloc.h>
4559#endif
4560
ca7c1a29
NC		 4561#ifdef MYMALLOC
4562# define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
cfe52898 4563#else
b001a0d1 4564# if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
e82be400 4565# ifdef PERL_TRACK_MEMPOOL
cfe52898 4566# define Perl_safesysmalloc_size(where) \
a78adc84 4567 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4568# else
4569# define Perl_safesysmalloc_size(where) malloc_size(where)
4570# endif
4571# endif
4572# ifdef HAS_MALLOC_GOOD_SIZE
4573# ifdef PERL_TRACK_MEMPOOL
d8fca402 4574# define Perl_malloc_good_size(how_much) \
a78adc84 4575 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4576# else
4577# define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4578# endif
4579# else
d8fca402
NC		 4580/* Having this as the identity operation makes some code simpler. */
4581# define Perl_malloc_good_size(how_much) (how_much)
e82be400 4582# endif
ca7c1a29 4583#endif
b6d9d515 4584
16c91539
BM		 4585typedef int (*runops_proc_t)(pTHX);
4586typedef void (*share_proc_t) (pTHX_ SV *sv);
4587typedef int (*thrhook_proc_t) (pTHX);
4588typedef OP* (*PPADDR_t[]) (pTHX);
4589typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4590typedef void (*despatch_signals_proc_t) (pTHX);
22c35a8c 4591
f05550c0
BF		 4592#if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4593# include <crt_externs.h> /* for the env array */
4594# define environ (*_NSGetEnviron())
8f1f23e8
W		 4595#else
4596 /* VMS and some other platforms don't use the environ array */
13b6e58c 4597# ifdef USE_ENVIRON_ARRAY
a6c40364 4598# if !defined(DONT_DECLARE_STD) || \
bdea967c 4599 (defined(__svr4__) && defined(__GNUC__) && defined(__sun)) || \
8d87852b 4600 defined(__sgi)
8f1f23e8 4601extern char ** environ; /* environment variables supplied via exec */
a6c40364 4602# endif
8f1f23e8
W		 4603# endif
4604#endif
79072805 4605
457c5385
NC		 4606#define PERL_PATCHLEVEL_H_IMPLICIT
4607#include "patchlevel.h"
4608#undef PERL_PATCHLEVEL_H_IMPLICIT
4609
4610#define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4611 STRINGIFY(PERL_VERSION) "." \
4612 STRINGIFY(PERL_SUBVERSION)
4613
4614#define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4615 STRINGIFY(PERL_API_VERSION) "." \
4616 STRINGIFY(PERL_API_SUBVERSION)
4617
73c4f7a1
GS		 4618START_EXTERN_C
4619
79072805 4620/* handy constants */
22c35a8c 4621EXTCONST char PL_warn_uninit[]
29489e7c 4622 INIT("Use of uninitialized value%s%s%s");
fef7e7a0 4623EXTCONST char PL_warn_uninit_sv[]
61608bb7 4624 INIT("Use of uninitialized value%" SVf "%s%s");
22c35a8c 4625EXTCONST char PL_warn_nosemi[]
463ee0b2 4626 INIT("Semicolon seems to be missing");
22c35a8c 4627EXTCONST char PL_warn_reserved[]
463ee0b2 4628 INIT("Unquoted string \"%s\" may clash with future reserved word");
22c35a8c 4629EXTCONST char PL_warn_nl[]
93a17b20 4630 INIT("Unsuccessful %s on filename containing newline");
22c35a8c 4631EXTCONST char PL_no_wrongref[]
a0d0e21e 4632 INIT("Can't use %s ref as %s ref");
fedf30e1 4633/* The core no longer needs this here. If you require the string constant,
def89bff 4634 please inline a copy into your own code. */
973a7615
NC		 4635EXTCONST char PL_no_symref[] __attribute__deprecated__
4636 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
fedf30e1
DM		 4637EXTCONST char PL_no_symref_sv[]
4638 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4639
22c35a8c 4640EXTCONST char PL_no_usym[]
8990e307 4641 INIT("Can't use an undefined value as %s reference");
22c35a8c 4642EXTCONST char PL_no_aelem[]
93a17b20 4643 INIT("Modification of non-creatable array value attempted, subscript %d");
ce5030a2 4644EXTCONST char PL_no_helem_sv[]
61608bb7 4645 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
22c35a8c 4646EXTCONST char PL_no_modify[]
93a17b20 4647 INIT("Modification of a read-only value attempted");
4cbe3a7d 4648EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
93a17b20 4649 INIT("Out of memory!\n");
22c35a8c 4650EXTCONST char PL_no_security[]
463ee0b2 4651 INIT("Insecure dependency in %s%s");
22c35a8c 4652EXTCONST char PL_no_sock_func[]
93a17b20 4653 INIT("Unsupported socket function \"%s\" called");
22c35a8c 4654EXTCONST char PL_no_dir_func[]
93a17b20 4655 INIT("Unsupported directory function \"%s\" called");
22c35a8c 4656EXTCONST char PL_no_func[]
93a17b20 4657 INIT("The %s function is unimplemented");
22c35a8c 4658EXTCONST char PL_no_myglob[]
a21eb52b 4659 INIT("\"%s\" %se %s can't be in a package");
82d03984
RGS		 4660EXTCONST char PL_no_localize_ref[]
4661 INIT("Can't localize through a reference");
27d5b266
JH		 4662EXTCONST char PL_memory_wrap[]
4663 INIT("panic: memory wrap");
93a17b20 4664
58f645e2
NC		 4665EXTCONST char PL_Yes[]
4666 INIT("1");
4667EXTCONST char PL_No[]
4668 INIT("");
4669EXTCONST char PL_hexdigit[]
4670 INIT("0123456789abcdef0123456789ABCDEF");
4671
0447859b
NC		 4672/* This is constant on most architectures, a global on OS/2 */
4673#ifndef OS2
4674EXTCONST char PL_sh_path[]
4675 INIT(SH_PATH); /* full path of shell */
4676#endif
4677
618b9757
NC		 4678#ifdef CSH
4679EXTCONST char PL_cshname[]
4680 INIT(CSH);
4681# define PL_cshlen (sizeof(CSH "") - 1)
4682#endif
4683
457c5385
NC		 4684/* These are baked at compile time into any shared perl library.
4685 In future releases this will allow us in main() to sanity test the
4686 library we're linking against. */
4687
4688EXTCONST U8 PL_revision
4689 INIT(PERL_REVISION);
4690EXTCONST U8 PL_version
4691 INIT(PERL_VERSION);
4692EXTCONST U8 PL_subversion
4693 INIT(PERL_SUBVERSION);
4694
7575fa06 4695EXTCONST char PL_uuemap[65]
80252599
GS		 4696 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4697
79072805 4698#ifdef DOINIT
9444d213 4699EXTCONST char PL_uudmap[256] =
dde5ec2c
NC		 4700# ifdef PERL_MICRO
4701# include "uuudmap.h"
4702# else
4703# include "uudmap.h"
4704# endif
9444d213 4705;
efa50c51 4706EXTCONST char PL_bitcount[256] =
dde5ec2c
NC		 4707# ifdef PERL_MICRO
4708# include "ubitcount.h"
4709#else
4710# include "bitcount.h"
4711# endif
efa50c51 4712;
27da23d5
JH		 4713EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4714EXTCONST int PL_sig_num[] = { SIG_NUM };
79072805 4715#else
9444d213 4716EXTCONST char PL_uudmap[256];
efa50c51 4717EXTCONST char PL_bitcount[256];
27da23d5
JH		 4718EXTCONST char* const PL_sig_name[];
4719EXTCONST int PL_sig_num[];
79072805
LW		 4720#endif
4721
6d8e7a01
KW		 4722/* fast conversion and case folding tables. The folding tables complement the
4723 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4724 * folds such as outside the range or to multiple characters. */
bbce6d69 4725
79072805 4726#ifdef DOINIT
d02f4dad
KW		 4727#ifndef EBCDIC
4728
4729/* The EBCDIC fold table depends on the code page, and hence is found in
4730 * utfebcdic.h */
4731
22c35a8c 4732EXTCONST unsigned char PL_fold[] = {
79072805
LW		 4733 0, 1, 2, 3, 4, 5, 6, 7,
4734 8, 9, 10, 11, 12, 13, 14, 15,
4735 16, 17, 18, 19, 20, 21, 22, 23,
4736 24, 25, 26, 27, 28, 29, 30, 31,
4737 32, 33, 34, 35, 36, 37, 38, 39,
4738 40, 41, 42, 43, 44, 45, 46, 47,
4739 48, 49, 50, 51, 52, 53, 54, 55,
4740 56, 57, 58, 59, 60, 61, 62, 63,
4741 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4742 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4743 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4744 'x', 'y', 'z', 91, 92, 93, 94, 95,
4745 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4746 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4747 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4748 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4749 128, 129, 130, 131, 132, 133, 134, 135,
4750 136, 137, 138, 139, 140, 141, 142, 143,
4751 144, 145, 146, 147, 148, 149, 150, 151,
4752 152, 153, 154, 155, 156, 157, 158, 159,
4753 160, 161, 162, 163, 164, 165, 166, 167,
4754 168, 169, 170, 171, 172, 173, 174, 175,
4755 176, 177, 178, 179, 180, 181, 182, 183,
4756 184, 185, 186, 187, 188, 189, 190, 191,
4757 192, 193, 194, 195, 196, 197, 198, 199,
4758 200, 201, 202, 203, 204, 205, 206, 207,
4759 208, 209, 210, 211, 212, 213, 214, 215,
4760 216, 217, 218, 219, 220, 221, 222, 223,
4761 224, 225, 226, 227, 228, 229, 230, 231,
4762 232, 233, 234, 235, 236, 237, 238, 239,
4763 240, 241, 242, 243, 244, 245, 246, 247,
4764 248, 249, 250, 251, 252, 253, 254, 255
4765};
3871f40b
KW		 4766EXTCONST unsigned char PL_fold_latin1[] = {
4767 /* Full latin1 complement folding, except for three problematic code points:
4768 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4769 * fold complements outside the Latin1 range, so can't match something
4770 * that isn't in utf8.
4771 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4772 * not one, so can't be represented in this table.
4773 *
4774 * All have to be specially handled */
4775 0, 1, 2, 3, 4, 5, 6, 7,
4776 8, 9, 10, 11, 12, 13, 14, 15,
4777 16, 17, 18, 19, 20, 21, 22, 23,
4778 24, 25, 26, 27, 28, 29, 30, 31,
4779 32, 33, 34, 35, 36, 37, 38, 39,
4780 40, 41, 42, 43, 44, 45, 46, 47,
4781 48, 49, 50, 51, 52, 53, 54, 55,
4782 56, 57, 58, 59, 60, 61, 62, 63,
4783 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4784 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4785 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4786 'x', 'y', 'z', 91, 92, 93, 94, 95,
4787 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4788 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4789 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4790 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4791 128, 129, 130, 131, 132, 133, 134, 135,
4792 136, 137, 138, 139, 140, 141, 142, 143,
4793 144, 145, 146, 147, 148, 149, 150, 151,
4794 152, 153, 154, 155, 156, 157, 158, 159,
4795 160, 161, 162, 163, 164, 165, 166, 167,
4796 168, 169, 170, 171, 172, 173, 174, 175,
4797 176, 177, 178, 179, 180, 181 /*micro */, 182, 183,
4798 184, 185, 186, 187, 188, 189, 190, 191,
4799 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4800 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4801 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4802 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4803 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4804 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4805 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4806 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4807 255 /* y with diaeresis */
4808};
00f254e2
KW		 4809
4810/* If these tables are accessed through ebcdic, the access will be converted to
4811 * latin1 first */
4812EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4813 0, 1, 2, 3, 4, 5, 6, 7,
4814 8, 9, 10, 11, 12, 13, 14, 15,
4815 16, 17, 18, 19, 20, 21, 22, 23,
4816 24, 25, 26, 27, 28, 29, 30, 31,
4817 32, 33, 34, 35, 36, 37, 38, 39,
4818 40, 41, 42, 43, 44, 45, 46, 47,
4819 48, 49, 50, 51, 52, 53, 54, 55,
4820 56, 57, 58, 59, 60, 61, 62, 63,
4821 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4822 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4823 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4824 'x', 'y', 'z', 91, 92, 93, 94, 95,
4825 96, 97, 98, 99, 100, 101, 102, 103,
4826 104, 105, 106, 107, 108, 109, 110, 111,
4827 112, 113, 114, 115, 116, 117, 118, 119,
4828 120, 121, 122, 123, 124, 125, 126, 127,
4829 128, 129, 130, 131, 132, 133, 134, 135,
4830 136, 137, 138, 139, 140, 141, 142, 143,
4831 144, 145, 146, 147, 148, 149, 150, 151,
4832 152, 153, 154, 155, 156, 157, 158, 159,
4833 160, 161, 162, 163, 164, 165, 166, 167,
4834 168, 169, 170, 171, 172, 173, 174, 175,
4835 176, 177, 178, 179, 180, 181, 182, 183,
4836 184, 185, 186, 187, 188, 189, 190, 191,
4837 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4838 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4839 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4840 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4841 224, 225, 226, 227, 228, 229, 230, 231,
4842 232, 233, 234, 235, 236, 237, 238, 239,
4843 240, 241, 242, 243, 244, 245, 246, 247,
4844 248, 249, 250, 251, 252, 253, 254, 255
4845};
4846
4847/* upper and title case of latin1 characters, modified so that the three tricky
4848 * ones are mapped to 255 (which is one of the three) */
4849EXTCONST unsigned char PL_mod_latin1_uc[] = {
4850 0, 1, 2, 3, 4, 5, 6, 7,
4851 8, 9, 10, 11, 12, 13, 14, 15,
4852 16, 17, 18, 19, 20, 21, 22, 23,
4853 24, 25, 26, 27, 28, 29, 30, 31,
4854 32, 33, 34, 35, 36, 37, 38, 39,
4855 40, 41, 42, 43, 44, 45, 46, 47,
4856 48, 49, 50, 51, 52, 53, 54, 55,
4857 56, 57, 58, 59, 60, 61, 62, 63,
4858 64, 65, 66, 67, 68, 69, 70, 71,
4859 72, 73, 74, 75, 76, 77, 78, 79,
4860 80, 81, 82, 83, 84, 85, 86, 87,
4861 88, 89, 90, 91, 92, 93, 94, 95,
4862 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4863 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4864 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4865 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4866 128, 129, 130, 131, 132, 133, 134, 135,
4867 136, 137, 138, 139, 140, 141, 142, 143,
4868 144, 145, 146, 147, 148, 149, 150, 151,
4869 152, 153, 154, 155, 156, 157, 158, 159,
4870 160, 161, 162, 163, 164, 165, 166, 167,
4871 168, 169, 170, 171, 172, 173, 174, 175,
4872 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4873 184, 185, 186, 187, 188, 189, 190, 191,
4874 192, 193, 194, 195, 196, 197, 198, 199,
4875 200, 201, 202, 203, 204, 205, 206, 207,
4876 208, 209, 210, 211, 212, 213, 214, 215,
4877 216, 217, 218, 219, 220, 221, 222, 255 /*sharp s*/,
4878 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4879 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4880 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4881 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4882};
1248eb9d 4883#endif /* !EBCDIC, but still in DOINIT */
00f254e2 4884#else /* ! DOINIT */
1248eb9d 4885# ifndef EBCDIC
22c35a8c 4886EXTCONST unsigned char PL_fold[];
3871f40b 4887EXTCONST unsigned char PL_fold_latin1[];
00f254e2
KW		 4888EXTCONST unsigned char PL_mod_latin1_uc[];
4889EXTCONST unsigned char PL_latin1_lc[];
1248eb9d 4890# endif
79072805
LW		 4891#endif
4892
27da23d5 4893#ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
79072805 4894#ifdef DOINIT
27da23d5 4895EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
79072805
LW		 4896 0, 1, 2, 3, 4, 5, 6, 7,
4897 8, 9, 10, 11, 12, 13, 14, 15,
4898 16, 17, 18, 19, 20, 21, 22, 23,
4899 24, 25, 26, 27, 28, 29, 30, 31,
4900 32, 33, 34, 35, 36, 37, 38, 39,
4901 40, 41, 42, 43, 44, 45, 46, 47,
4902 48, 49, 50, 51, 52, 53, 54, 55,
4903 56, 57, 58, 59, 60, 61, 62, 63,
4904 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4905 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4906 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4907 'x', 'y', 'z', 91, 92, 93, 94, 95,
4908 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4909 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4910 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4911 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4912 128, 129, 130, 131, 132, 133, 134, 135,
4913 136, 137, 138, 139, 140, 141, 142, 143,
4914 144, 145, 146, 147, 148, 149, 150, 151,
4915 152, 153, 154, 155, 156, 157, 158, 159,
4916 160, 161, 162, 163, 164, 165, 166, 167,
4917 168, 169, 170, 171, 172, 173, 174, 175,
4918 176, 177, 178, 179, 180, 181, 182, 183,
4919 184, 185, 186, 187, 188, 189, 190, 191,
4920 192, 193, 194, 195, 196, 197, 198, 199,
4921 200, 201, 202, 203, 204, 205, 206, 207,
4922 208, 209, 210, 211, 212, 213, 214, 215,
4923 216, 217, 218, 219, 220, 221, 222, 223,
4924 224, 225, 226, 227, 228, 229, 230, 231,
4925 232, 233, 234, 235, 236, 237, 238, 239,
4926 240, 241, 242, 243, 244, 245, 246, 247,
4927 248, 249, 250, 251, 252, 253, 254, 255
4928};
4929#else
27da23d5 4930EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
79072805 4931#endif
27da23d5 4932#endif /* !PERL_GLOBAL_STRUCT */
79072805
LW		 4933
4934#ifdef DOINIT
9d116dd7 4935#ifdef EBCDIC
27da23d5 4936EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
9d116dd7
JH		 4937 1, 2, 84, 151, 154, 155, 156, 157,
4938 165, 246, 250, 3, 158, 7, 18, 29,
4939 40, 51, 62, 73, 85, 96, 107, 118,
4940 129, 140, 147, 148, 149, 150, 152, 153,
4941 255, 6, 8, 9, 10, 11, 12, 13,
4942 14, 15, 24, 25, 26, 27, 28, 226,
4943 29, 30, 31, 32, 33, 43, 44, 45,
4944 46, 47, 48, 49, 50, 76, 77, 78,
4945 79, 80, 81, 82, 83, 84, 85, 86,
4946 87, 94, 95, 234, 181, 233, 187, 190,
4947 180, 96, 97, 98, 99, 100, 101, 102,
4948 104, 112, 182, 174, 236, 232, 229, 103,
4949 228, 226, 114, 115, 116, 117, 118, 119,
4950 120, 121, 122, 235, 176, 230, 194, 162,
4951 130, 131, 132, 133, 134, 135, 136, 137,
4952 138, 139, 201, 205, 163, 217, 220, 224,
4953 5, 248, 227, 244, 242, 255, 241, 231,
4954 240, 253, 16, 197, 19, 20, 21, 187,
4955 23, 169, 210, 245, 237, 249, 247, 239,
4956 168, 252, 34, 196, 36, 37, 38, 39,
4957 41, 42, 251, 254, 238, 223, 221, 213,
4958 225, 177, 52, 53, 54, 55, 56, 57,
4959 58, 59, 60, 61, 63, 64, 65, 66,
4960 67, 68, 69, 70, 71, 72, 74, 75,
4961 205, 208, 186, 202, 200, 218, 198, 179,
4962 178, 214, 88, 89, 90, 91, 92, 93,
4963 217, 166, 170, 207, 199, 209, 206, 204,
4964 160, 212, 105, 106, 108, 109, 110, 111,
4965 203, 113, 216, 215, 192, 175, 193, 243,
4966 172, 161, 123, 124, 125, 126, 127, 128,
4967 222, 219, 211, 195, 188, 193, 185, 184,
4968 191, 183, 141, 142, 143, 144, 145, 146
4969};
4970#else /* ascii rather than ebcdic */
22c35a8c 4971EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 4972 1, 2, 84, 151, 154, 155, 156, 157,
4973 165, 246, 250, 3, 158, 7, 18, 29,
4974 40, 51, 62, 73, 85, 96, 107, 118,
4975 129, 140, 147, 148, 149, 150, 152, 153,
4976 255, 182, 224, 205, 174, 176, 180, 217,
4977 233, 232, 236, 187, 235, 228, 234, 226,
4978 222, 219, 211, 195, 188, 193, 185, 184,
4979 191, 183, 201, 229, 181, 220, 194, 162,
4980 163, 208, 186, 202, 200, 218, 198, 179,
4981 178, 214, 166, 170, 207, 199, 209, 206,
4982 204, 160, 212, 216, 215, 192, 175, 173,
4983 243, 172, 161, 190, 203, 189, 164, 230,
4984 167, 248, 227, 244, 242, 255, 241, 231,
4985 240, 253, 169, 210, 245, 237, 249, 247,
4986 239, 168, 252, 251, 254, 238, 223, 221,
4987 213, 225, 177, 197, 171, 196, 159, 4,
4988 5, 6, 8, 9, 10, 11, 12, 13,
4989 14, 15, 16, 17, 19, 20, 21, 22,
4990 23, 24, 25, 26, 27, 28, 30, 31,
4991 32, 33, 34, 35, 36, 37, 38, 39,
4992 41, 42, 43, 44, 45, 46, 47, 48,
4993 49, 50, 52, 53, 54, 55, 56, 57,
4994 58, 59, 60, 61, 63, 64, 65, 66,
4995 67, 68, 69, 70, 71, 72, 74, 75,
4996 76, 77, 78, 79, 80, 81, 82, 83,
4997 86, 87, 88, 89, 90, 91, 92, 93,
4998 94, 95, 97, 98, 99, 100, 101, 102,
4999 103, 104, 105, 106, 108, 109, 110, 111,
5000 112, 113, 114, 115, 116, 117, 119, 120,
5001 121, 122, 123, 124, 125, 126, 127, 128,
5002 130, 131, 132, 133, 134, 135, 136, 137,
5003 138, 139, 141, 142, 143, 144, 145, 146
5004};
9d116dd7 5005#endif
79072805 5006#else
22c35a8c 5007EXTCONST unsigned char PL_freq[];
79072805
LW		 5008#endif
5009
b0812ba3
DM		 5010/* Although only used for debugging, these constants must be available in
5011 * non-debugging builds too, since they're used in ext/re/re_exec.c,
5012 * which has DEBUGGING enabled always */
8990e307 5013#ifdef DOINIT
27da23d5 5014EXTCONST char* const PL_block_type[] = {
8990e307 5015 "NULL",
d01136d6 5016 "WHEN",
8990e307 5017 "BLOCK",
0d863452 5018 "GIVEN",
d01136d6
BS		 5019 "LOOP_FOR",
5020 "LOOP_PLAIN",
5021 "LOOP_LAZYSV",
5022 "LOOP_LAZYIV",
76753e7f
NC		 5023 "SUB",
5024 "FORMAT",
5025 "EVAL",
5026 "SUBST"
8990e307
LW		 5027};
5028#else
22c35a8c 5029EXTCONST char* PL_block_type[];
8990e307 5030#endif
8990e307 5031
b75885fd
NC		 5032/* These are all the compile time options that affect binary compatibility.
5033 Other compile time options that are binary compatible are in perl.c
5034 Both are combined for the output of perl -V
5035 However, this string will be embedded in any shared perl library, which will
5036 allow us add a comparison check in perlmain.c in the near future. */
5037#ifdef DOINIT
5038EXTCONST char PL_bincompat_options[] =
5039# ifdef DEBUG_LEAKING_SCALARS
5040 " DEBUG_LEAKING_SCALARS"
5041# endif
5042# ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5043 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5044# endif
eba804b9
NC		 5045# ifdef FCRYPT
5046 " FCRYPT"
5047# endif
5048# ifdef HAS_TIMES
5049 " HAS_TIMES"
5050# endif
5051# ifdef HAVE_INTERP_INTERN
426f6eb2 5052 " HAVE_INTERP_INTERN"
eba804b9 5053# endif
b75885fd
NC		 5054# ifdef MULTIPLICITY
5055 " MULTIPLICITY"
5056# endif
5057# ifdef MYMALLOC
5058 " MYMALLOC"
5059# endif
eba804b9
NC		 5060# ifdef PERLIO_LAYERS
5061 " PERLIO_LAYERS"
5062# endif
cb26ef7a
MB		 5063# ifdef PERL_DEBUG_READONLY_COW
5064 " PERL_DEBUG_READONLY_COW"
5065# endif
b75885fd
NC		 5066# ifdef PERL_DEBUG_READONLY_OPS
5067 " PERL_DEBUG_READONLY_OPS"
5068# endif
5069# ifdef PERL_GLOBAL_STRUCT
5070 " PERL_GLOBAL_STRUCT"
5071# endif
59dba841
JH		 5072# ifdef PERL_GLOBAL_STRUCT_PRIVATE
5073 " PERL_GLOBAL_STRUCT_PRIVATE"
5074# endif
b75885fd
NC		 5075# ifdef PERL_IMPLICIT_CONTEXT
5076 " PERL_IMPLICIT_CONTEXT"
5077# endif
5078# ifdef PERL_IMPLICIT_SYS
5079 " PERL_IMPLICIT_SYS"
5080# endif
eba804b9
NC		 5081# ifdef PERL_MICRO
5082 " PERL_MICRO"
5083# endif
b75885fd
NC		 5084# ifdef PERL_NEED_APPCTX
5085 " PERL_NEED_APPCTX"
5086# endif
5087# ifdef PERL_NEED_TIMESBASE
5088 " PERL_NEED_TIMESBASE"
5089# endif
5090# ifdef PERL_OLD_COPY_ON_WRITE
5091 " PERL_OLD_COPY_ON_WRITE"
5092# endif
5093# ifdef PERL_POISON
5094 " PERL_POISON"
5095# endif
5b50f57e
FC		 5096# ifdef PERL_SAWAMPERSAND
5097 " PERL_SAWAMPERSAND"
5098# endif
b75885fd
NC		 5099# ifdef PERL_TRACK_MEMPOOL
5100 " PERL_TRACK_MEMPOOL"
5101# endif
5102# ifdef PERL_USES_PL_PIDSTATUS
5103 " PERL_USES_PL_PIDSTATUS"
5104# endif
b75885fd
NC		 5105# ifdef USE_64_BIT_ALL
5106 " USE_64_BIT_ALL"
5107# endif
5108# ifdef USE_64_BIT_INT
5109 " USE_64_BIT_INT"
5110# endif
c7b392fa
NC		 5111# ifdef USE_IEEE
5112 " USE_IEEE"
5113# endif
b75885fd
NC		 5114# ifdef USE_ITHREADS
5115 " USE_ITHREADS"
5116# endif
5117# ifdef USE_LARGE_FILES
5118 " USE_LARGE_FILES"
5119# endif
eba804b9
NC		 5120# ifdef USE_LOCALE_COLLATE
5121 " USE_LOCALE_COLLATE"
5122# endif
5123# ifdef USE_LOCALE_NUMERIC
5124 " USE_LOCALE_NUMERIC"
5125# endif
56e45410
KW		 5126# ifdef USE_LOCALE_TIME
5127 " USE_LOCALE_TIME"
5128# endif
b75885fd
NC		 5129# ifdef USE_LONG_DOUBLE
5130 " USE_LONG_DOUBLE"
5131# endif
5132# ifdef USE_PERLIO
5133 " USE_PERLIO"
5134# endif
05b4a618
JH		 5135# ifdef USE_QUADMATH
5136 " USE_QUADMATH"
5137# endif
b75885fd
NC		 5138# ifdef USE_REENTRANT_API
5139 " USE_REENTRANT_API"
5140# endif
b75885fd
NC		 5141# ifdef USE_SOCKS
5142 " USE_SOCKS"
5143# endif
4f575702
CB		 5144# ifdef VMS_DO_SOCKETS
5145 " VMS_DO_SOCKETS"
4f575702 5146# endif
e8b231c6
CB		 5147# ifdef VMS_SHORTEN_LONG_SYMBOLS
5148 " VMS_SHORTEN_LONG_SYMBOLS"
5149# endif
ad5e438d
NC		 5150# ifdef VMS_WE_ARE_CASE_SENSITIVE
5151 " VMS_SYMBOL_CASE_AS_IS"
5152# endif
a68dd89e 5153 "";
b75885fd
NC		 5154#else
5155EXTCONST char PL_bincompat_options[];
5156#endif
5157
ca7b837b
SM		 5158#ifndef PERL_SET_PHASE
5159# define PERL_SET_PHASE(new_phase) \
cb3f8189 5160 PHASE_CHANGE_PROBE(PL_phase_names[new_phase], PL_phase_names[PL_phase]); \
ca7b837b
SM		 5161 PL_phase = new_phase;
5162#endif
5163
9ebf26ad
FR		 5164/* The interpreter phases. If these ever change, PL_phase_names right below will
5165 * need to be updated accordingly. */
5166enum perl_phase {
5167 PERL_PHASE_CONSTRUCT = 0,
5168 PERL_PHASE_START = 1,
5169 PERL_PHASE_CHECK = 2,
5170 PERL_PHASE_INIT = 3,
5171 PERL_PHASE_RUN = 4,
5172 PERL_PHASE_END = 5,
5173 PERL_PHASE_DESTRUCT = 6
5174};
5175
5176#ifdef DOINIT
5177EXTCONST char *const PL_phase_names[] = {
5178 "CONSTRUCT",
5179 "START",
5180 "CHECK",
5181 "INIT",
5182 "RUN",
5183 "END",
5184 "DESTRUCT"
5185};
5186#else
5187EXTCONST char *const PL_phase_names[];
5188#endif
5189
627364f1
FR		 5190#ifndef PERL_CORE
5191/* Do not use this macro. It only exists for extensions that rely on PL_dirty
5192 * instead of using the newer PL_phase, which provides everything PL_dirty
5193 * provided, and more. */
5194# define PL_dirty (PL_phase == PERL_PHASE_DESTRUCT)
66978156
FC		 5195
5196# define PL_amagic_generation PL_na
627364f1
FR		 5197#endif /* !PERL_CORE */
5198
823ac2c8
FC		 5199#define PL_hints PL_compiling.cop_hints
5200
73c4f7a1
GS		 5201END_EXTERN_C
5202
79072805
LW		 5203/*****************************************************************************/
5204/* This lexer/parser stuff is currently global since yacc is hard to reenter */
5205/*****************************************************************************/
8990e307 5206/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 5207
d4c3c482 5208#ifdef __Lynx__
9cffb111
OS		 5209/* LynxOS defines these in scsi.h which is included via ioctl.h */
5210#ifdef FORMAT
5211#undef FORMAT
5212#endif
5213#ifdef SPACE
5214#undef SPACE
5215#endif
d4c3c482 5216#endif
9cffb111 5217
fb73857a 5218#define LEX_NOTPARSING 11 /* borrowed from toke.c */
5219
79072805
LW		 5220typedef enum {
5221 XOPERATOR,
5222 XTERM,
79072805 5223 XREF,
8990e307 5224 XSTATE,
a0d0e21e 5225 XBLOCK,
09bef843
SB		 5226 XATTRBLOCK,
5227 XATTRTERM,
6f33ba73 5228 XTERMBLOCK,
b5b6210a 5229 XBLOCKTERM,
89f35911 5230 XPOSTDEREF,
6f33ba73 5231 XTERMORDORDOR /* evil hack */
27308ded 5232 /* update exp_name[] in toke.c if adding to this enum */
79072805
LW		 5233} expectation;
5234
d5ec2987
NC		 5235/* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5236 special and there is no need for HINT_PRIVATE_MASK for COPs
538e84ed
KW		 5237 However, bitops store HINT_INTEGER in their op_private.
5238
5239 NOTE: The typical module using these has the bit value hard-coded, so don't
d6ded950
KW		 5240 blindly change the values of these.
5241
5242 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5243 is for "use locale 'FOO'" which excludes some categories. It requires going
5244 to %^H to find out which are in and which are out. This could be extended
5245 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5246 any locale form. */
9cfe5470
RGS		 5247#define HINT_INTEGER 0x00000001 /* integer pragma */
5248#define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5249#define HINT_LOCALE 0x00000004 /* locale pragma */
5250#define HINT_BYTES 0x00000008 /* bytes pragma */
d6ded950 5251#define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
894ea76b
FC		 5252
5253#define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5254#define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5255#define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
85e6fe83
LW		 5256
5257#define HINT_BLOCK_SCOPE 0x00000100
9cfe5470
RGS		 5258#define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5259#define HINT_STRICT_VARS 0x00000400 /* strict pragma */
1863b879 5260#define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
85e6fe83 5261
9cfe5470 5262/* The HINT_NEW_* constants are used by the overload pragma */
b3ac6de7
IZ		 5263#define HINT_NEW_INTEGER 0x00001000
5264#define HINT_NEW_FLOAT 0x00002000
5265#define HINT_NEW_BINARY 0x00004000
5266#define HINT_NEW_STRING 0x00008000
5267#define HINT_NEW_RE 0x00010000
5268#define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
8b850bd5
NC		 5269#define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5270#define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
b3ac6de7 5271
9cfe5470
RGS		 5272#define HINT_RE_TAINT 0x00100000 /* re pragma */
5273#define HINT_RE_EVAL 0x00200000 /* re pragma */
b3eb6a9b 5274
9cfe5470
RGS		 5275#define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5276#define HINT_UTF8 0x00800000 /* utf8 pragma */
5ff3f7a4 5277
e46c382e
YK		 5278#define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5279
1e215989
FC		 5280#define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5281
a803b9b4
FC		 5282#define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5283
15da1ccf
FC		 5284 /* Note: Used for HINT_M_VMSISH_*,
5285 currently defined by vms/vmsish.h:
894ea76b
FC		 5286 0x40000000
5287 0x80000000
5288 */
d1718a7c 5289
0239f47c 5290/* The following are stored in $^H{sort}, not in PL_hints */
84d4ea48
JH		 5291#define HINT_SORT_SORT_BITS 0x000000FF /* allow 256 different ones */
5292#define HINT_SORT_QUICKSORT 0x00000001
5293#define HINT_SORT_MERGESORT 0x00000002
c53fc8a6 5294#define HINT_SORT_STABLE 0x00000100 /* sort styles (currently one) */
84d4ea48 5295
d3b97530
DM		 5296/* flags for PL_sawampersand */
5297
5298#define SAWAMPERSAND_LEFT 1 /* saw $` */
5299#define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5300#define SAWAMPERSAND_RIGHT 4 /* saw $' */
5301
1a904fc8
FC		 5302#ifndef PERL_SAWAMPERSAND
5303# define PL_sawampersand \
5304 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5305#endif
5306
a6d69523
TC		 5307/* Used for debugvar magic */
5308#define DBVARMG_SINGLE 0
5309#define DBVARMG_TRACE 1
5310#define DBVARMG_SIGNAL 2
5311#define DBVARMG_COUNT 3
5312
5313#define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5314#define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5315#define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5316
8bfdd7d9 5317/* Various states of the input record separator SV (rs) */
d4cce5f1 5318#define RsSNARF(sv) (! SvOK(sv))
af7d13df
MG		 5319#define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5320#define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5b2b9c68 5321#define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
79072805 5322
128e8167 5323/* A struct for keeping various DEBUGGING related stuff,
ce333219 5324 * neatly packed. Currently only scratch variables for
128e8167
JH		 5325 * constructing debug output are included. Needed always,
5326 * not just when DEBUGGING, though, because of the re extension. c*/
ce333219
JH		 5327struct perl_debug_pad {
5328 SV pad[3];
5329};
5330
5331#define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
a5c57919
RGS		 5332#define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5333 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5334 PERL_DEBUG_PAD(i))
ce333219 5335
56953603 5336/* Enable variables which are pointers to functions */
16c91539
BM		 5337typedef void (*peep_t)(pTHX_ OP* o);
5338typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5339typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
0cb96387
GS		 5340 char* strend, char* strbeg, I32 minend,
5341 SV* screamer, void* data, U32 flags);
16c91539 5342typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
f722798b
IZ		 5343 char *strpos, char *strend,
5344 U32 flags,
9f61653a 5345 re_scream_pos_data *d);
16c91539
BM		 5346typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5347typedef void (*regfree_t) (pTHX_ struct regexp* r);
5348typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
a932d541 5349typedef I32 (*re_fold_t)(const char *, char const *, I32);
56953603 5350
c76ac1ee 5351typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
acfe0abc 5352typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
f30de749 5353typedef void (*SVFUNC_t) (pTHX_ SV* const);
31e9e0a3 5354typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
acfe0abc
GS		 5355typedef void (*XSINIT_t) (pTHX);
5356typedef void (*ATEXIT_t) (pTHX_ void*);
5357typedef void (*XSUBADDR_t) (pTHX_ CV *);
15e52e56 5358
16c91539
BM		 5359typedef OP* (*Perl_ppaddr_t)(pTHX);
5360typedef OP* (*Perl_check_t) (pTHX_ OP*);
5361typedef void(*Perl_ophook_t)(pTHX_ OP*);
5362typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
1830b3d9 5363typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
88e1f1a2 5364
d67594ff
FC		 5365typedef void(*globhook_t)(pTHX);
5366
88e1f1a2
JV		 5367#define KEYWORD_PLUGIN_DECLINE 0
5368#define KEYWORD_PLUGIN_STMT 1
5369#define KEYWORD_PLUGIN_EXPR 2
22239a37 5370
58a50f62
GS		 5371/* Interpreter exitlist entry */
5372typedef struct exitlistentry {
acfe0abc 5373 void (*fn) (pTHX_ void*);
58a50f62
GS		 5374 void *ptr;
5375} PerlExitListEntry;
5376
aadb217d
JH		 5377/* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5378/* These have to be before perlvars.h */
5379#if !defined(HAS_SIGACTION) && defined(VMS)
5380# define FAKE_PERSISTENT_SIGNAL_HANDLERS
5381#endif
5382/* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5383#if defined(KILL_BY_SIGPRC)
5384# define FAKE_DEFAULT_SIGNAL_HANDLERS
5385#endif
5386
8c1cc017
NC		 5387#if !defined(MULTIPLICITY)
5388
5389struct interpreter {
5390 char broiled;
22239a37
NIS		 5391};
5392
8c1cc017 5393#else
22239a37 5394
d460ef45 5395/* If we have multiple interpreters define a struct
d4cce5f1 5396 holding variables which must be per-interpreter
d460ef45 5397 If we don't have threads anything that would have
d4cce5f1
NIS		 5398 be per-thread is per-interpreter.
5399*/
5400
8c1cc017 5401/* Set up PERLVAR macros for populating structs */
115ff745 5402# define PERLVAR(prefix,var,type) type prefix##var;
eb42f199
KW		 5403
5404/* 'var' is an array of length 'n' */
115ff745 5405# define PERLVARA(prefix,var,n,type) type prefix##var[n];
eb42f199
KW		 5406
5407/* initialize 'var' to init' */
115ff745 5408# define PERLVARI(prefix,var,type,init) type prefix##var;
eb42f199
KW		 5409
5410/* like PERLVARI, but make 'var' a const */
115ff745 5411# define PERLVARIC(prefix,var,type,init) type prefix##var;
8c1cc017 5412
79072805 5413struct interpreter {
7766f137 5414# include "intrpvar.h"
49f531da 5415};
d4cce5f1 5416
724cf8d6
NC		 5417EXTCONST U16 PL_interp_size
5418 INIT(sizeof(struct interpreter));
5419
5420# define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5421 STRUCT_OFFSET(struct interpreter, member) + \
5422 sizeof(((struct interpreter*)0)->member)
5423
5424/* This will be useful for subsequent releases, because this has to be the
5425 same in your libperl as in main(), else you have a mismatch and must abort.
5426*/
d399cf59
NC		 5427EXTCONST U16 PL_interp_size_5_18_0
5428 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
724cf8d6
NC		 5429
5430
8c1cc017
NC		 5431# ifdef PERL_GLOBAL_STRUCT
5432/* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5433 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5434
5435struct perl_vars {
5436# include "perlvars.h"
49f531da 5437};
8c1cc017 5438
724cf8d6
NC		 5439EXTCONST U16 PL_global_struct_size
5440 INIT(sizeof(struct perl_vars));
5441
8c1cc017
NC		 5442# ifdef PERL_CORE
5443# ifndef PERL_GLOBAL_STRUCT_PRIVATE
5444EXT struct perl_vars PL_Vars;
5445EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5446# undef PERL_GET_VARS
5447# define PERL_GET_VARS() PL_VarsPtr
5448# endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5449# else /* PERL_CORE */
5450# if !defined(__GNUC__) || !defined(WIN32)
5451EXT
5452# endif /* WIN32 */
5453struct perl_vars *PL_VarsPtr;
5454# define PL_Vars (*((PL_VarsPtr) \
5455 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5456# endif /* PERL_CORE */
5457# endif /* PERL_GLOBAL_STRUCT */
79072805 5458
22239a37 5459/* Done with PERLVAR macros for now ... */
8c1cc017
NC		 5460# undef PERLVAR
5461# undef PERLVARA
5462# undef PERLVARI
5463# undef PERLVARIC
8c1cc017
NC		 5464
5465#endif /* MULTIPLICITY */
79072805 5466
f7fe979e 5467struct tempsym; /* defined in pp_pack.c */
49704364 5468
22239a37 5469#include "thread.h"
79072805 5470#include "pp.h"
864dbfa3
GS		 5471
5472#ifndef PERL_CALLCONV
a0c21aa1
JH		 5473# ifdef __cplusplus
5474# define PERL_CALLCONV extern "C"
5475# else
5476# define PERL_CALLCONV
5477# endif
d460ef45 5478#endif
12a2785c
DD		 5479#ifndef PERL_CALLCONV_NO_RET
5480# define PERL_CALLCONV_NO_RET PERL_CALLCONV
5481#endif
5482
98c015b7
DD		 5483/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
5484 dont have a noreturn as a declaration specifier
5485*/
5486#ifndef PERL_STATIC_NO_RET
5487# define PERL_STATIC_NO_RET STATIC
5488#endif
5489/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
5490 builds that dont have a noreturn as a declaration specifier
5491*/
5492#ifndef PERL_STATIC_INLINE_NO_RET
5493# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
5494#endif
5495
5496
0cb96387
GS		 5497#undef PERL_CKDEF
5498#undef PERL_PPDEF
0159f81b
JH		 5499#define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5500#define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
0cb96387 5501
158cfab6
JD		 5502#ifdef MYMALLOC
5503# include "malloc_ctl.h"
5504#endif
5505
7766f137 5506#include "proto.h"
864dbfa3 5507
0cb96387 5508/* this has structure inits, so it cannot be included before here */
acfe0abc 5509#include "opcode.h"
864dbfa3 5510
d4cce5f1
NIS		 5511/* The following must follow proto.h as #defines mess up syntax */
5512
22c35a8c
GS		 5513#if !defined(PERL_FOR_X2P)
5514# include "embedvar.h"
5515#endif
d4cce5f1 5516
d460ef45 5517/* Now include all the 'global' variables
d4cce5f1 5518 * If we don't have threads or multiple interpreters
d460ef45 5519 * these include variables that would have been their struct-s
d4cce5f1 5520 */
d460ef45 5521
115ff745
NC		 5522#define PERLVAR(prefix,var,type) EXT type PL_##var;
5523#define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5524#define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5525#define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
d4cce5f1 5526
acfe0abc 5527#if !defined(MULTIPLICITY)
7766f137 5528START_EXTERN_C
066ef5b5 5529# include "intrpvar.h"
7766f137 5530END_EXTERN_C
22239a37
NIS		 5531#endif
5532
24792b8d
NC		 5533#ifdef PERL_CORE
5534/* All core uses now exterminated. Ensure no zombies can return: */
5535# undef PL_na
5536#endif
5537
f9293c5b
NC		 5538/* Now all the config stuff is setup we can include embed.h
5539 In particular, need the relevant *ish file included already, as it may
5540 define HAVE_INTERP_INTERN */
5541#include "embed.h"
22239a37 5542
c5be433b
GS		 5543#ifndef PERL_GLOBAL_STRUCT
5544START_EXTERN_C
5545
5546# include "perlvars.h"
5547
5548END_EXTERN_C
5549#endif
5550
d4cce5f1 5551#undef PERLVAR
51371543 5552#undef PERLVARA
d4cce5f1 5553#undef PERLVARI
0f3f18a6 5554#undef PERLVARIC
79072805 5555
db6e00bd
DD		 5556#if !defined(MULTIPLICITY)
5557/* Set up PERLVAR macros for populating structs */
5558# define PERLVAR(prefix,var,type) type prefix##var;
5559/* 'var' is an array of length 'n' */
5560# define PERLVARA(prefix,var,n,type) type prefix##var[n];
5561/* initialize 'var' to init' */
5562# define PERLVARI(prefix,var,type,init) type prefix##var;
5563/* like PERLVARI, but make 'var' a const */
5564# define PERLVARIC(prefix,var,type,init) type prefix##var;
5565
5566/* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5567struct PerlHandShakeInterpreter {
5568# include "intrpvar.h"
5569};
5570# undef PERLVAR
5571# undef PERLVARA
5572# undef PERLVARI
5573# undef PERLVARIC
5574#endif
5575
73c4f7a1
GS		 5576START_EXTERN_C
5577
af2f0da9
NC		 5578/* dummy variables that hold pointers to both runops functions, thus forcing
5579 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5580
5581EXTCONST runops_proc_t PL_runops_std
5582 INIT(Perl_runops_standard);
5583EXTCONST runops_proc_t PL_runops_dbg
5584 INIT(Perl_runops_debug);
5585
c910fead 5586#define EXT_MGVTBL EXTCONST MGVTBL
bc028b6b 5587
82ff486e 5588#define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
e0a73de4
NC		 5589#define PERL_MAGIC_VALUE_MAGIC 0x80
5590#define PERL_MAGIC_VTABLE_MASK 0x3F
82ff486e
NC		 5591#define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5592 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
e0a73de4
NC		 5593#define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5594 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5595
8b09643d 5596#include "mg_vtable.h"
6f83ef0e
NC		 5597
5598#ifdef DOINIT
5599EXTCONST U8 PL_magic_data[256] =
dde5ec2c
NC		 5600# ifdef PERL_MICRO
5601# include "umg_data.h"
5602# else
5603# include "mg_data.h"
5604# endif
6f83ef0e
NC		 5605;
5606#else
5607EXTCONST U8 PL_magic_data[256];
5608#endif
5609
f1fb8741 5610#ifdef DOINIT
e94d9b54 5611 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
f1fb8741 5612EXTCONST bool
e94d9b54 5613PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5614EXTCONST bool
e94d9b54 5615PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5616EXTCONST bool
d361b004 5617PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1 };
f1fb8741 5618EXTCONST bool
e94d9b54 5619PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
f1fb8741 5620EXTCONST bool
e94d9b54 5621PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
f1fb8741 5622EXTCONST bool
e94d9b54 5623PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741
DM		 5624
5625#else
5626
5627EXTCONST bool PL_valid_types_IVX[];
5628EXTCONST bool PL_valid_types_NVX[];
5629EXTCONST bool PL_valid_types_PVX[];
5630EXTCONST bool PL_valid_types_RV[];
5631EXTCONST bool PL_valid_types_IV_set[];
5632EXTCONST bool PL_valid_types_NV_set[];
5633
5634#endif
5635
cf6e31e9
DM		 5636
5637/* if these never got defined, they need defaults */
5638#ifndef PERL_SET_CONTEXT
5639# define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5640#endif
5641
5642#ifndef PERL_GET_CONTEXT
5643# define PERL_GET_CONTEXT PERL_GET_INTERP
5644#endif
5645
5646#ifndef PERL_GET_THX
5647# define PERL_GET_THX ((void*)NULL)
5648#endif
5649
5650#ifndef PERL_SET_THX
5651# define PERL_SET_THX(t) NOOP
5652#endif
5653
5654
c7627e6d
NC		 5655#ifndef PERL_NO_INLINE_FUNCTIONS
5656/* Static inline funcs that depend on includes and declarations above.
5657 Some of these reference functions in the perl object files, and some
5658 compilers aren't smart enough to eliminate unused static inline
5659 functions, so including this file in source code can cause link errors
5660 even if the source code uses none of the functions. Hence including these
5661 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5662 (obviously) result in unworkable XS code, but allows simple probing code
5663 to continue to work, because it permits tests to include the perl headers
5664 for definitions without creating a link dependency on the perl library
5665 (which may not exist yet).
5666*/
5667
5668# include "inline.h"
5669#endif
f1fb8741 5670
bab3dc31 5671#include "overload.h"
a0d0e21e 5672
73c4f7a1
GS		 5673END_EXTERN_C
5674
a6006777 5675struct am_table {
8978b4ac
NC		 5676 U8 flags;
5677 U8 fallback;
5678 U16 spare;
eb160463 5679 U32 was_ok_sub;
9bd87817 5680 CV* table[NofAMmeth];
a0d0e21e 5681};
a6006777 5682struct am_table_short {
8978b4ac
NC		 5683 U8 flags;
5684 U8 fallback;
5685 U16 spare;
eb160463 5686 U32 was_ok_sub;
a6006777 5687};
a0d0e21e 5688typedef struct am_table AMT;
a6006777 5689typedef struct am_table_short AMTS;
a0d0e21e
LW		 5690
5691#define AMGfallNEVER 1
5692#define AMGfallNO 2
5693#define AMGfallYES 3
5694
a6006777 5695#define AMTf_AMAGIC 1
5696#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5697#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5698#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5699
32251b26 5700#define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
c0315cdf
JH		 5701
5702/*
5703 * some compilers like to redefine cos et alia as faster
5704 * (and less accurate?) versions called F_cos et cetera (Quidquid
5705 * latine dictum sit, altum viditur.) This trick collides with
5706 * the Perl overloading (amg). The following #defines fool both.
5707 */
5708
5709#ifdef _FASTMATH
5710# ifdef atan2
5711# define F_atan2_amg atan2_amg
5712# endif
5713# ifdef cos
5714# define F_cos_amg cos_amg
5715# endif
5716# ifdef exp
5717# define F_exp_amg exp_amg
5718# endif
5719# ifdef log
5720# define F_log_amg log_amg
5721# endif
5722# ifdef pow
5723# define F_pow_amg pow_amg
5724# endif
5725# ifdef sin
5726# define F_sin_amg sin_amg
5727# endif
5728# ifdef sqrt
5729# define F_sqrt_amg sqrt_amg
5730# endif
5731#endif /* _FASTMATH */
5732
83ee9e09
GS		 5733#define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
5734 PERLDBf_NOOPT | PERLDBf_INTER | \
5735 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
b8fcbefe
NC		 5736 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
5737 PERLDBf_SAVESRC)
925cfbb8 5738 /* No _NONAME, _GOTO */
83ee9e09
GS		 5739#define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
5740#define PERLDBf_LINE 0x02 /* Keep line # */
5741#define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
5742#define PERLDBf_INTER 0x08 /* Preserve more data for
5743 later inspections */
5744#define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
5745#define PERLDBf_SINGLE 0x20 /* Start with single-step on */
5746#define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
5747#define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
5748#define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
5749#define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
b8fcbefe 5750#define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
486ec47a 5751#define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
c30d8139 5752#define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
84902520 5753
8bd38399
DD		 5754#define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
5755#define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
5756#define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
5757#define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
5758#define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
5759#define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
5760#define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
5761#define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
5762#define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
5763#define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
5764#define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
5765#define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
5766#define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
bbce6d69 5767
91191cf7 5768#ifdef USE_LOCALE
d6ded950 5769/* These locale things are all subject to change */
c8bf5ca7 5770/* Returns TRUE if the plain locale pragma without a parameter is in effect
66cbab2c 5771 */
6d62ead0 5772# define IN_LOCALE_RUNTIME cBOOL(CopHINTS_get(PL_curcop) & HINT_LOCALE)
66cbab2c 5773
c8bf5ca7 5774/* Returns TRUE if either form of the locale pragma is in effect */
6d62ead0 5775# define IN_SOME_LOCALE_FORM_RUNTIME \
d6ded950 5776 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
66cbab2c 5777
6d62ead0
KW		 5778# define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
5779# define IN_SOME_LOCALE_FORM_COMPILETIME \
d6ded950 5780 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
2de3dbcc 5781
6d62ead0 5782# define IN_LOCALE \
923e4eb5 5783 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6d62ead0 5784# define IN_SOME_LOCALE_FORM \
66cbab2c
KW		 5785 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
5786 : IN_SOME_LOCALE_FORM_RUNTIME)
2de3dbcc 5787
6d62ead0
KW		 5788# define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
5789# define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
5790
5791# define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
5792# define IN_LC_PARTIAL_RUNTIME \
5793 cBOOL(CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
5794
5795# define IN_LC_COMPILETIME(category) \
5796 (IN_LC_ALL_COMPILETIME || (IN_LC_PARTIAL_COMPILETIME \
5797 && _is_in_locale_category(TRUE, (category))))
5798# define IN_LC_RUNTIME(category) \
5799 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
5800 && _is_in_locale_category(FALSE, (category))))
5801# define IN_LC(category) \
5802 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
d6ded950 5803
780fcc9f
KW		 5804# if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
5805
5806 /* This internal macro should be called from places that operate under
5807 * locale rules. It there is a problem with the current locale that
2726666d
KW		 5808 * hasn't been raised yet, it will output a warning this time. Because
5809 * this will so rarely be true, there is no point to optimize for
5810 * time; instead it makes sense to minimize space used and do all the
5811 * work in the rarely called function */
33245021
KW		 5812# ifdef USE_LOCALE_CTYPE
5813# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
5814 STMT_START { \
5815 if (UNLIKELY(PL_warn_locale)) { \
5816 _warn_problematic_locale(); \
5817 } \
5818 } STMT_END
5819# else
5820# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5821# endif
780fcc9f
KW		 5822
5823
613abc6d
KW		 5824 /* These two internal macros are called when a warning should be raised,
5825 * and will do so if enabled. The first takes a single code point
5826 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
5827 * string, and an end position which it won't try to read past */
5828# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
5829 Perl_ck_warner(aTHX_ packWARN(WARN_LOCALE), \
5830 "Wide character (U+%"UVXf") in %s", (UV) cp, OP_DESC(PL_op));
5831
5832# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
5833 STMT_START { /* Check if to warn before doing the conversion work */\
5834 if (ckWARN(WARN_LOCALE)) { \
5835 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \
5836 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5837 "Wide character (U+%"UVXf") in %s", \
5838 (cp == 0) \
5839 ? UNICODE_REPLACEMENT \
5840 : (UV) cp, \
5841 OP_DESC(PL_op)); \
5842 } \
5843 } STMT_END
5844
780fcc9f
KW		 5845# endif /* PERL_CORE or PERL_IN_XSUB_RE */
5846
91191cf7
KW		 5847#else /* No locale usage */
5848# define IN_LOCALE_RUNTIME 0
5849# define IN_SOME_LOCALE_FORM_RUNTIME 0
5850# define IN_LOCALE_COMPILETIME 0
5851# define IN_SOME_LOCALE_FORM_COMPILETIME 0
5852# define IN_LOCALE 0
5853# define IN_SOME_LOCALE_FORM 0
5854# define IN_LC_ALL_COMPILETIME 0
5855# define IN_LC_ALL_RUNTIME 0
5856# define IN_LC_PARTIAL_COMPILETIME 0
5857# define IN_LC_PARTIAL_RUNTIME 0
5858# define IN_LC_COMPILETIME(category) 0
5859# define IN_LC_RUNTIME(category) 0
5860# define IN_LC(category) 0
780fcc9f
KW		 5861
5862# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
613abc6d
KW		 5863# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(a)
5864# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(a,b)
91191cf7
KW		 5865#endif
5866
6bf09f55
KW		 5867#ifdef USE_LOCALE_NUMERIC
5868
8a11fac9
KW		 5869/* These macros are for toggling between the underlying locale (LOCAL) and the
5870 * C locale. */
5871
5872/* The first set makes sure that the locale is set to C unless within a 'use
5873 * locale's scope; otherwise to the default locale. A function pointer is
5874 * used, which can be declared separately by
5875 * DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED, followed by the actual
5876 * setting (using STORE_LC_NUMERIC_SET_TO_NEEDED()), or the two can be combined
5877 * into one call DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED().
5878 * RESTORE_LC_NUMERIC() in all cases restores the locale to what it was before
5879 * these were called */
5880
aaaeb297 5881#define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
7738054c
KW		 5882
5883/* We can lock the category to stay in the C locale, making requests to the
5884 * contrary noops, in the dynamic scope by setting PL_numeric_standard to 2 */
5885#define _NOT_IN_NUMERIC_LOCAL (! PL_numeric_local && PL_numeric_standard < 2)
aaaeb297 5886
8a11fac9
KW		 5887#define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED \
5888 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL;
5889
5890#define STORE_LC_NUMERIC_SET_TO_NEEDED() \
d6ded950 5891 if (IN_LC(LC_NUMERIC)) { \
aaaeb297
KW		 5892 if (_NOT_IN_NUMERIC_LOCAL) { \
5893 set_numeric_local(); \
8a11fac9
KW		 5894 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
5895 } \
5896 } \
5897 else { \
aaaeb297 5898 if (_NOT_IN_NUMERIC_STANDARD) { \
8a11fac9
KW		 5899 SET_NUMERIC_STANDARD(); \
5900 _restore_LC_NUMERIC_function = &Perl_set_numeric_local; \
5901 } \
5902 }
5903
5904#define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED() \
5905 DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED; \
5906 STORE_LC_NUMERIC_SET_TO_NEEDED();
5907
5908#define RESTORE_LC_NUMERIC() \
5909 if (_restore_LC_NUMERIC_function) { \
5910 _restore_LC_NUMERIC_function(aTHX); \
5911 }
5912
5913/* The next two macros set unconditionally. These should be rarely used, and
5914 * only after being sure that this is what is needed */
8d98ede7 5915#define SET_NUMERIC_STANDARD() \
aaaeb297 5916 STMT_START { if (_NOT_IN_NUMERIC_STANDARD) set_numeric_standard(); \
8d98ede7 5917 } STMT_END
87755cd9 5918
8d98ede7 5919#define SET_NUMERIC_LOCAL() \
aaaeb297
KW		 5920 STMT_START { if (_NOT_IN_NUMERIC_LOCAL) \
5921 set_numeric_local(); } STMT_END
87755cd9 5922
8a11fac9
KW		 5923/* The rest of these LC_NUMERIC macros toggle to one or the other state, with
5924 * the RESTORE_foo ones called to switch back, but only if need be */
aaaeb297
KW		 5925#define STORE_NUMERIC_LOCAL_SET_STANDARD() \
5926 bool _was_local = _NOT_IN_NUMERIC_STANDARD; \
5927 if (_was_local) set_numeric_standard();
f93f4e46 5928
b34856cb
KW		 5929/* Doesn't change to underlying locale unless within the scope of some form of
5930 * 'use locale'. This is the usual desired behavior. */
aaaeb297
KW		 5931#define STORE_NUMERIC_STANDARD_SET_LOCAL() \
5932 bool _was_standard = _NOT_IN_NUMERIC_LOCAL \
5933 && IN_LC(LC_NUMERIC); \
5934 if (_was_standard) set_numeric_local();
f93f4e46 5935
371d5d44
KW		 5936/* Rarely, we want to change to the underlying locale even outside of 'use
5937 * locale'. This is principally in the POSIX:: functions */
aaaeb297
KW		 5938#define STORE_NUMERIC_STANDARD_FORCE_LOCAL() \
5939 bool _was_standard = _NOT_IN_NUMERIC_LOCAL; \
5940 if (_was_standard) set_numeric_local();
371d5d44 5941
7738054c
KW		 5942/* Lock to the C locale until unlock is called */
5943#define LOCK_NUMERIC_STANDARD() \
5944 (__ASSERT_(PL_numeric_standard) \
5945 PL_numeric_standard = 2)
5946
5947#define UNLOCK_NUMERIC_STANDARD() \
5948 (__ASSERT_(PL_numeric_standard == 2) \
5949 PL_numeric_standard = 1)
5950
f93f4e46 5951#define RESTORE_NUMERIC_LOCAL() \
aaaeb297 5952 if (_was_local) set_numeric_local();
f93f4e46
CK		 5953
5954#define RESTORE_NUMERIC_STANDARD() \
aaaeb297 5955 if (_was_standard) SET_NUMERIC_STANDARD();
f93f4e46 5956
36477c24 5957#else /* !USE_LOCALE_NUMERIC */
bbce6d69 5958
097ee67d
JH		 5959#define SET_NUMERIC_STANDARD() /**/
5960#define SET_NUMERIC_LOCAL() /**/
5e931b6b 5961#define IS_NUMERIC_RADIX(a, b) (0)
f93f4e46
CK		 5962#define STORE_NUMERIC_LOCAL_SET_STANDARD() /**/
5963#define STORE_NUMERIC_STANDARD_SET_LOCAL() /**/
8a11fac9 5964#define STORE_NUMERIC_STANDARD_FORCE_LOCAL()
097ee67d
JH		 5965#define RESTORE_NUMERIC_LOCAL() /**/
5966#define RESTORE_NUMERIC_STANDARD() /**/
8a11fac9
KW		 5967#define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED
5968#define STORE_LC_NUMERIC_SET_TO_NEEDED()
5969#define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED()
5970#define RESTORE_LC_NUMERIC()
130c5df3
KW		 5971#define LOCK_NUMERIC_STANDARD()
5972#define UNLOCK_NUMERIC_STANDARD()
8a11fac9 5973
36477c24 5974#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 5975
22bc8aa4
KW		 5976#define Atof my_atof
5977
05b4a618
JH		 5978#ifdef USE_QUADMATH
5979# define Perl_strtod(s, e) strtoflt128(s, e)
5980#elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
f1b32d61
JH		 5981# if defined(HAS_STRTOLD)
5982# define Perl_strtod(s, e) strtold(s, e)
5983# elif defined(HAS_STRTOD)
5984# define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */
5985# endif
5986#elif defined(HAS_STRTOD)
5987# define Perl_strtod(s, e) strtod(s, e)
5988#endif
5989
85b76970
SH		 5990#if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
5991 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 5992# ifdef __hpux
5993# define strtoll __strtoll /* secret handshake */
5994# endif
c623ac67
GS		 5995# ifdef WIN64
5996# define strtoll _strtoi64 /* secret handshake */
5997# endif
079290de
GS		 5998# if !defined(Strtol) && defined(HAS_STRTOLL)
5999# define Strtol strtoll
ad551343 6000# endif
28e5dec8
JH		 6001# if !defined(Strtol) && defined(HAS_STRTOQ)
6002# define Strtol strtoq
6003# endif
ff935051 6004/* is there atoq() anywhere? */
15b99d39 6005#endif
079290de
GS		 6006#if !defined(Strtol) && defined(HAS_STRTOL)
6007# define Strtol strtol
6008#endif
6009#ifndef Atol
6010/* It would be more fashionable to use Strtol() to define atol()
6011 * (as is done for Atoul(), see below) but for backward compatibility
6012 * we just assume atol(). */
85b76970
SH		 6013# if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6014 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
c623ac67
GS		 6015# ifdef WIN64
6016# define atoll _atoi64 /* secret handshake */
6017# endif
76b882ba
JH		 6018# define Atol atoll
6019# else
6020# define Atol atol
6021# endif
cf2093f6
JH		 6022#endif
6023
85b76970
SH		 6024#if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6025 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 6026# ifdef __hpux
6027# define strtoull __strtoull /* secret handshake */
6028# endif
c623ac67
GS		 6029# ifdef WIN64
6030# define strtoull _strtoui64 /* secret handshake */
6031# endif
ad551343 6032# if !defined(Strtoul) && defined(HAS_STRTOULL)
388d3c03 6033# define Strtoul strtoull
15b99d39 6034# endif
079290de
GS		 6035# if !defined(Strtoul) && defined(HAS_STRTOUQ)
6036# define Strtoul strtouq
6037# endif
76d49b1c 6038/* is there atouq() anywhere? */
ad551343 6039#endif
079290de
GS		 6040#if !defined(Strtoul) && defined(HAS_STRTOUL)
6041# define Strtoul strtoul
cf2093f6 6042#endif
a5523c5b
JH		 6043#if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6044# define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6045#endif
079290de 6046#ifndef Atoul
d4c19fe8 6047# define Atoul(s) Strtoul(s, NULL, 10)
55eb892c 6048#endif
cf2093f6 6049
a868473f
NIS		 6050#ifndef PERL_SCRIPT_MODE
6051#define PERL_SCRIPT_MODE "r"
6052#endif
6053
fba3b22e 6054/*
da927450
JH		 6055 * Some operating systems are stingy with stack allocation,
6056 * so perl may have to guard against stack overflow.
6057 */
6058#ifndef PERL_STACK_OVERFLOW_CHECK
c2af87cb 6059#define PERL_STACK_OVERFLOW_CHECK() NOOP
da927450
JH		 6060#endif
6061
6062/*
6063 * Some nonpreemptive operating systems find it convenient to
6064 * check for asynchronous conditions after each op execution.
6065 * Keep this check simple, or it may slow down execution
6066 * massively.
6067 */
ce08f86c 6068
1d615522 6069#ifndef PERL_MICRO
4ffa73a3 6070# ifndef PERL_ASYNC_CHECK
5d9574c1 6071# define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
4ffa73a3 6072# endif
ce08f86c
NIS		 6073#endif
6074
da927450 6075#ifndef PERL_ASYNC_CHECK
1d615522 6076# define PERL_ASYNC_CHECK() NOOP
da927450
JH		 6077#endif
6078
6079/*
6080 * On some operating systems, a memory allocation may succeed,
6081 * but put the process too close to the system's comfort limit.
6082 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6083 * it to NULL.
6084 */
6085#ifndef PERL_ALLOC_CHECK
c2af87cb 6086#define PERL_ALLOC_CHECK(p) NOOP
da927450
JH		 6087#endif
6088
bd89102f
AD		 6089#ifdef HAS_SEM
6090# include <sys/ipc.h>
6091# include <sys/sem.h>
6092# ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6093 union semun {
dbba660d
TC		 6094 int val;
6095 struct semid_ds *buf;
6096 unsigned short *array;
bd89102f
AD		 6097 };
6098# endif
6099# ifdef USE_SEMCTL_SEMUN
dbba660d
TC		 6100# ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6101 union gccbug_semun {
6102 int val;
6103 struct semid_ds *buf;
6104 unsigned short *array;
6105 char __dummy[5];
6106 };
6107# define semun gccbug_semun
6108# endif
bd89102f
AD		 6109# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6110# else
6111# ifdef USE_SEMCTL_SEMID_DS
e6f0bdd6
GS		 6112# ifdef EXTRA_F_IN_SEMUN_BUF
6113# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6114# else
6115# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6116# endif
bd89102f
AD		 6117# endif
6118# endif
bd89102f 6119#endif
49f531da 6120
89ca4ac7
JH		 6121/*
6122 * Boilerplate macros for initializing and accessing interpreter-local
6123 * data from C. All statics in extensions should be reworked to use
7588b095
JH		 6124 * this, if you want to make the extension thread-safe. See
6125 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6126 * and perlxs.pod for more.
89ca4ac7
JH		 6127 *
6128 * Code that uses these macros is responsible for the following:
43a739c2
JH		 6129 * 1. #define MY_CXT_KEY to a unique string, e.g.
6130 * "DynaLoader::_guts" XS_VERSION
f16dd614 6131 * XXX in the current implementation, this string is ignored.
89ca4ac7
JH		 6132 * 2. Declare a typedef named my_cxt_t that is a structure that contains
6133 * all the data that needs to be interpreter-local.
6134 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
6135 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
6136 * (typically put in the BOOT: section).
6137 * 5. Use the members of the my_cxt_t structure everywhere as
6138 * MY_CXT.member.
6139 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
6140 * access MY_CXT.
6141 */
6142
fc958cd2 6143#if defined(PERL_IMPLICIT_CONTEXT)
89ca4ac7 6144
4eddb856 6145/* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
53d44271
JH		 6146 * right after the definition (i.e. at file scope). The non-threads
6147 * case below uses it to declare the data as static. */
00ab59c9
DM		 6148# ifdef PERL_GLOBAL_STRUCT_PRIVATE
6149# define START_MY_CXT
6150# define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
6151# define MY_CXT_INIT_ARG MY_CXT_KEY
6152# else
6153# define START_MY_CXT static int my_cxt_index = -1;
6154# define MY_CXT_INDEX my_cxt_index
6155# define MY_CXT_INIT_ARG &my_cxt_index
6156# endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
53d44271
JH		 6157
6158/* Creates and zeroes the per-interpreter data.
6159 * (We allocate my_cxtp in a Perl SV so that it will be released when
6160 * the interpreter goes away.) */
00ab59c9 6161# define MY_CXT_INIT \
53d44271 6162 my_cxt_t *my_cxtp = \
9f6df31a
Z		 6163 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6164 PERL_UNUSED_VAR(my_cxtp)
00ab59c9 6165# define MY_CXT_INIT_INTERP(my_perl) \
53d44271 6166 my_cxt_t *my_cxtp = \
9f6df31a
Z		 6167 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6168 PERL_UNUSED_VAR(my_cxtp)
53d44271
JH		 6169
6170/* This declaration should be used within all functions that use the
6171 * interpreter-local data. */
00ab59c9 6172# define dMY_CXT \
53d44271 6173 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
00ab59c9 6174# define dMY_CXT_INTERP(my_perl) \
53d44271
JH		 6175 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6176
6177/* Clones the per-interpreter data. */
00ab59c9 6178# define MY_CXT_CLONE \
53d44271 6179 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
8b573070 6180 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
ccaa51ca
DD		 6181 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6182 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6183
53d44271 6184
53d44271 6185
89ca4ac7 6186/* This macro must be used to access members of the my_cxt_t structure.
870598ae 6187 * e.g. MY_CXT.some_data */
00ab59c9 6188# define MY_CXT (*my_cxtp)
89ca4ac7
JH		 6189
6190/* Judicious use of these macros can reduce the number of times dMY_CXT
6191 * is used. Use is similar to pTHX, aTHX etc. */
00ab59c9
DM		 6192# define pMY_CXT my_cxt_t *my_cxtp
6193# define pMY_CXT_ pMY_CXT,
6194# define _pMY_CXT ,pMY_CXT
6195# define aMY_CXT my_cxtp
6196# define aMY_CXT_ aMY_CXT,
6197# define _aMY_CXT ,aMY_CXT
89ca4ac7 6198
f16dd614 6199#else /* PERL_IMPLICIT_CONTEXT */
89ca4ac7 6200
00ab59c9
DM		 6201# define START_MY_CXT static my_cxt_t my_cxt;
6202# define dMY_CXT_SV dNOOP
6203# define dMY_CXT dNOOP
6204# define dMY_CXT_INTERP(my_perl) dNOOP
6205# define MY_CXT_INIT NOOP
6206# define MY_CXT_CLONE NOOP
6207# define MY_CXT my_cxt
6208
6209# define pMY_CXT void
6210# define pMY_CXT_
6211# define _pMY_CXT
6212# define aMY_CXT
6213# define aMY_CXT_
6214# define _aMY_CXT
89ca4ac7 6215
f16dd614 6216#endif /* !defined(PERL_IMPLICIT_CONTEXT) */
89ca4ac7 6217
9a34ef1d
GS		 6218#ifdef I_FCNTL
6219# include <fcntl.h>
9a34ef1d
GS		 6220#endif
6221
9cffb111
OS		 6222#ifdef __Lynx__
6223# include <fcntl.h>
6224#endif
6225
9a34ef1d
GS		 6226#ifdef I_SYS_FILE
6227# include <sys/file.h>
6228#endif
6229
fa0a29af 6230#if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
2ef53570
JH		 6231int flock(int fd, int op);
6232#endif
6233
fe52b3b7
GS		 6234#ifndef O_RDONLY
6235/* Assume UNIX defaults */
6236# define O_RDONLY 0000
6237# define O_WRONLY 0001
6238# define O_RDWR 0002
6239# define O_CREAT 0100
6240#endif
9a34ef1d 6241
16fe6d59
GS		 6242#ifndef O_BINARY
6243# define O_BINARY 0
6244#endif
6245
6246#ifndef O_TEXT
6247# define O_TEXT 0
6248#endif
6249
6ce75a77 6250#if O_TEXT != O_BINARY
38d96942 6251 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6ce75a77 6252 * that is, you are somehow DOSish. */
b6c36746
NC		 6253# if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6254 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6255 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
73250e76
JH		 6256 /* VOS has O_TEXT != O_BINARY, and they have effect,
6257 * but VOS always uses LF, never CRLF. */
6ce75a77
JH		 6258 /* If you have O_TEXT different from your O_BINARY but you still are
6259 * not a CRLF shop. */
35990314 6260# undef PERLIO_USING_CRLF
ec53fe4f
JH		 6261# else
6262 /* If you really are DOSish. */
6263# define PERLIO_USING_CRLF 1
6ce75a77
JH		 6264# endif
6265#endif
6266
4bc88a62
PS		 6267#ifdef I_LIBUTIL
6268# include <libutil.h> /* setproctitle() in some FreeBSDs */
6269#endif
6270
b4748376 6271#ifndef EXEC_ARGV_CAST
360ea906 6272#define EXEC_ARGV_CAST(x) (char **)x
b4748376
NIS		 6273#endif
6274
dd5dc04f
JH		 6275#define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6276 int). value returned in pointed-
6277 to UV */
6278#define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
d70489e1 6279#define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
dd5dc04f
JH		 6280#define IS_NUMBER_NEG 0x08 /* leading minus sign */
6281#define IS_NUMBER_INFINITY 0x10 /* this is big */
aa8b85de 6282#define IS_NUMBER_NAN 0x20 /* this is not */
3f7602fa 6283#define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
dd5dc04f
JH		 6284
6285#define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6286
53305cf1
NC		 6287/* Input flags: */
6288#define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
a4c04bdc 6289#define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
94dd8549 6290#define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
02470786
KW		 6291#define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6292 numbers which are <= UV_MAX */
3f7602fa
TC		 6293#define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6294 and set IS_NUMBER_TRAILING */
6295
53305cf1
NC		 6296/* Output flags: */
6297#define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6298
2c4f7f0e
DM		 6299/* to let user control profiling */
6300#ifdef PERL_GPROF_CONTROL
6301extern void moncontrol(int);
6302#define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6303#else
6304#define PERL_GPROF_MONCONTROL(x)
6305#endif
6306
ae0e3d3b
JH		 6307#ifdef UNDER_CE
6308#include "wince.h"
6309#endif
6310
6311/* ISO 6429 NEL - C1 control NExt Line */
6312/* See http://www.unicode.org/unicode/reports/tr13/ */
ec34087a 6313#define NEXT_LINE_CHAR NEXT_LINE_NATIVE
ae0e3d3b
JH		 6314
6315/* The UTF-8 bytes of the Unicode LS and PS, U+2028 and U+2029 */
6316#define UNICODE_LINE_SEPA_0 0xE2
6317#define UNICODE_LINE_SEPA_1 0x80
6318#define UNICODE_LINE_SEPA_2 0xA8
6319#define UNICODE_PARA_SEPA_0 0xE2
6320#define UNICODE_PARA_SEPA_1 0x80
6321#define UNICODE_PARA_SEPA_2 0xA9
6322
479b2847
GS		 6323#ifndef PIPESOCK_MODE
6324# define PIPESOCK_MODE
6325#endif
6326
460c8493
IZ		 6327#ifndef SOCKET_OPEN_MODE
6328# define SOCKET_OPEN_MODE PIPESOCK_MODE
6329#endif
6330
6331#ifndef PIPE_OPEN_MODE
6332# define PIPE_OPEN_MODE PIPESOCK_MODE
6333#endif
6334
7e8c5dac
HS		 6335#define PERL_MAGIC_UTF8_CACHESIZE 2
6336
a05d7ebb
JH		 6337#define PERL_UNICODE_STDIN_FLAG 0x0001
6338#define PERL_UNICODE_STDOUT_FLAG 0x0002
6339#define PERL_UNICODE_STDERR_FLAG 0x0004
a05d7ebb
JH		 6340#define PERL_UNICODE_IN_FLAG 0x0008
6341#define PERL_UNICODE_OUT_FLAG 0x0010
06e66572 6342#define PERL_UNICODE_ARGV_FLAG 0x0020
a05d7ebb
JH		 6343#define PERL_UNICODE_LOCALE_FLAG 0x0040
6344#define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
5a22a2bb 6345#define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
a05d7ebb 6346
06e66572
JH		 6347#define PERL_UNICODE_STD_FLAG \
6348 (PERL_UNICODE_STDIN_FLAG | \
6349 PERL_UNICODE_STDOUT_FLAG | \
6350 PERL_UNICODE_STDERR_FLAG)
6351
6352#define PERL_UNICODE_INOUT_FLAG \
6353 (PERL_UNICODE_IN_FLAG | \
6354 PERL_UNICODE_OUT_FLAG)
6355
6356#define PERL_UNICODE_DEFAULT_FLAGS \
a05d7ebb
JH		 6357 (PERL_UNICODE_STD_FLAG | \
6358 PERL_UNICODE_INOUT_FLAG | \
6359 PERL_UNICODE_LOCALE_FLAG)
6360
5a22a2bb 6361#define PERL_UNICODE_ALL_FLAGS 0x01ff
a05d7ebb
JH		 6362
6363#define PERL_UNICODE_STDIN 'I'
6364#define PERL_UNICODE_STDOUT 'O'
6365#define PERL_UNICODE_STDERR 'E'
6366#define PERL_UNICODE_STD 'S'
6367#define PERL_UNICODE_IN 'i'
6368#define PERL_UNICODE_OUT 'o'
6369#define PERL_UNICODE_INOUT 'D'
6370#define PERL_UNICODE_ARGV 'A'
6371#define PERL_UNICODE_LOCALE 'L'
6372#define PERL_UNICODE_WIDESYSCALLS 'W'
5a22a2bb 6373#define PERL_UNICODE_UTF8CACHEASSERT 'a'
a05d7ebb 6374
4ffa73a3
JH		 6375#define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6376
32fdb065 6377/* Use instead of abs() since abs() forces its argument to be an int,
56c380de 6378 * but also beware since this evaluates its argument twice, so no x++. */
32fdb065
JH		 6379#define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6380
3c0f78ca
JH		 6381#if defined(__DECC) && defined(__osf__)
6382#pragma message disable (mainparm) /* Perl uses the envp in main(). */
24801a4b
JH		 6383#endif
6384
e4dba786
NC		 6385#define do_open(g, n, l, a, rm, rp, sf) \
6386 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
9555a685 6387#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
711aba4c 6388# define do_exec(cmd) do_exec3(cmd,0,0)
a9f96b3f 6389#endif
15871fce
NC		 6390#ifdef OS2
6391# define do_aexec Perl_do_aexec
6392#else
6393# define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
9555a685 6394#endif
e4dba786 6395
c8028aa6
TC		 6396/* check embedded \0 characters in pathnames passed to syscalls,
6397 but allow one ending \0 */
41188aa0 6398#define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
c8028aa6 6399
41188aa0 6400#define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
c8028aa6 6401
2f3efc97
JH		 6402#if defined(OEMVS)
6403#define NO_ENV_ARRAY_IN_MAIN
6404#endif
6405
00f254e2
KW		 6406/* These are used by Perl_pv_escape() and Perl_pv_pretty()
6407 * are here so that they are available throughout the core
10edeb5d
JH		 6408 * NOTE that even though some are for _escape and some for _pretty
6409 * there must not be any clashes as the flags from _pretty are
6410 * passed straight through to _escape.
6411 */
6412
4420a417 6413#define PERL_PV_ESCAPE_QUOTE 0x000001
10edeb5d
JH		 6414#define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6415
4420a417
YO		 6416#define PERL_PV_PRETTY_ELLIPSES 0x000002
6417#define PERL_PV_PRETTY_LTGT 0x000004
6418#define PERL_PV_PRETTY_EXACTSIZE 0x000008
10edeb5d 6419
4420a417
YO		 6420#define PERL_PV_ESCAPE_UNI 0x000100
6421#define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6422#define PERL_PV_ESCAPE_NONASCII 0x000400
6423#define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
10edeb5d 6424
4420a417
YO		 6425#define PERL_PV_ESCAPE_ALL 0x001000
6426#define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6427#define PERL_PV_ESCAPE_NOCLEAR 0x004000
6428#define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
6429#define PERL_PV_ESCAPE_RE 0x008000
10edeb5d 6430
4420a417 6431#define PERL_PV_ESCAPE_DWIM 0x010000
0eb335df 6432
881a015e 6433
10edeb5d 6434/* used by pv_display in dump.c*/
95b611b0 6435#define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
c89df6cf 6436#define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
10edeb5d 6437
3fd106b1
JH		 6438#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
6439 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
6440 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6441# define DOUBLE_LITTLE_ENDIAN
6442#endif
6443
075bc527
JH		 6444#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
6445 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
6446 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6447# define DOUBLE_BIG_ENDIAN
6448#endif
6449
804d4e64
JH		 6450#if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
6451 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6452# define DOUBLE_MIX_ENDIAN
6453#endif
6454
63a6ab05
JH		 6455/* All the basic IEEE formats have the implicit bit,
6456 * except for the 80-bit extended formats, which will undef this. */
6457#define NV_IMPLICIT_BIT
6458
f03a9d38 6459#ifdef LONG_DOUBLEKIND
3fd106b1
JH		 6460
6461# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
6462 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6463 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN
6464# define LONGDOUBLE_LITTLE_ENDIAN
6465# endif
6466
6467# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
6468 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
6469 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6470# define LONGDOUBLE_BIG_ENDIAN
6471# endif
6472
6473# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6474 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6475# define LONGDOUBLE_X86_80_BIT
63a6ab05
JH		 6476# ifdef USE_LONG_DOUBLE
6477# undef NV_IMPLICIT_BIT
6478# endif
3fd106b1
JH		 6479# endif
6480
6481# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN || \
6482 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6483# define LONGDOUBLE_DOUBLEDOUBLE
6484# endif
6485
f03a9d38 6486#endif /* LONG_DOUBLEKIND */
3fd106b1 6487
d701dd28
JH		 6488#if NVSIZE == DOUBLESIZE
6489# ifdef DOUBLE_LITTLE_ENDIAN
6490# define NV_LITTLE_ENDIAN
6491# endif
6492# ifdef DOUBLE_BIG_ENDIAN
6493# define NV_BIG_ENDIAN
6494# endif
804d4e64
JH		 6495# ifdef DOUBLE_MIX_ENDIAN
6496# define NV_MIX_ENDIAN
6497# endif
d701dd28
JH		 6498#elif NVSIZE == LONG_DOUBLESIZE
6499# ifdef LONGDOUBLE_LITTLE_ENDIAN
6500# define NV_LITTLE_ENDIAN
6501# endif
6502# ifdef LONGDOUBLE_BIG_ENDIAN
6503# define NV_BIG_ENDIAN
6504# endif
6505#endif
6506
10edeb5d
JH		 6507/*
6508
6509 (KEEP THIS LAST IN perl.h!)
6510
6511 Mention
d460ef45 6512
43999f95 6513 NV_PRESERVES_UV
fe749a9f 6514
fe749a9f
JH		 6515 HAS_MKSTEMP
6516 HAS_MKSTEMPS
6517 HAS_MKDTEMP
6518
49dabb45
JH		 6519 HAS_GETCWD
6520
d59b5429 6521 HAS_MMAP
fe749a9f
JH		 6522 HAS_MPROTECT
6523 HAS_MSYNC
1e8c3fde 6524 HAS_MADVISE
fe749a9f
JH		 6525 HAS_MUNMAP
6526 I_SYSMMAN
6527 Mmap_t
6528
6b4667fc
A		 6529 NVef
6530 NVff
6531 NVgf
6532
4e0554ec 6533 HAS_UALARM
2d736872 6534 HAS_USLEEP
4e0554ec
JH		 6535
6536 HAS_SETITIMER
6537 HAS_GETITIMER
6538
6539 HAS_SENDMSG
6540 HAS_RECVMSG
6541 HAS_READV
6542 HAS_WRITEV
6543 I_SYSUIO
6544 HAS_STRUCT_MSGHDR
6545 HAS_STRUCT_CMSGHDR
6546
2765b840 6547 HAS_NL_LANGINFO
0a7020c9 6548
ae0e3d3b 6549 HAS_DIRFD
2765b840 6550
10edeb5d 6551 so that Configure picks them up.
ab3bbdeb 6552
10edeb5d 6553 (KEEP THIS LAST IN perl.h!)
3df15adc 6554
10edeb5d 6555*/
3df15adc 6556
85e6fe83 6557#endif /* Include guard */
e9a8c099
MHM		 6558
6559/*
6560 * Local variables:
6561 * c-indentation-style: bsd
6562 * c-basic-offset: 4
14d04a33 6563 * indent-tabs-mode: nil
e9a8c099
MHM		 6564 * End:
6565 *
14d04a33 6566 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 6567 */
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