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IRIX long-double sqrt(2) one bit error in the least significant end.
[perl5.git] / perl.h
CommitLineData
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 37#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
996959af 38 defined(_STDC_C99) || defined(__c99)
86a3cabf 39# define HAS_C99 1
86a3cabf
JH		 40#endif
41
2c2d71f5
JH		 42/* See L<perlguts/"The Perl API"> for detailed notes on
43 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
44
ac6bedea
JH		 45/* Note that from here --> to <-- the same logic is
46 * repeated in makedef.pl, so be certain to update
47 * both places when editing. */
48
6f4183fe 49#ifdef USE_ITHREADS
acfe0abc 50# if !defined(MULTIPLICITY)
6f4183fe
GS		 51# define MULTIPLICITY
52# endif
53#endif
54
27da23d5
JH		 55#ifdef PERL_GLOBAL_STRUCT_PRIVATE
56# ifndef PERL_GLOBAL_STRUCT
57# define PERL_GLOBAL_STRUCT
58# endif
59#endif
97aff369 60
27da23d5
JH		 61#ifdef PERL_GLOBAL_STRUCT
62# ifndef MULTIPLICITY
63# define MULTIPLICITY
64# endif
65#endif
66
97aff369
JH		 67#ifdef MULTIPLICITY
68# ifndef PERL_IMPLICIT_CONTEXT
69# define PERL_IMPLICIT_CONTEXT
70# endif
71#endif
72
026fd48b
GH		 73/* undef WIN32 when building on Cygwin (for libwin32) - gph */
74#ifdef __CYGWIN__
75# undef WIN32
76# undef _WIN32
77#endif
78
27da23d5
JH		 79#if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
80# ifndef SYMBIAN
81# define SYMBIAN
82# endif
83#endif
84
a0fd4948 85#ifdef __SYMBIAN32__
27da23d5
JH		 86# include "symbian/symbian_proto.h"
87#endif
88
89/* Any stack-challenged places. The limit varies (and often
90 * is configurable), but using more than a kilobyte of stack
91 * is usually dubious in these systems. */
739a0b84
NC		 92#if defined(__SYMBIAN32__)
93/* Symbian: need to work around the SDK features. *
27da23d5
JH		 94 * On WINS: MS VC5 generates calls to _chkstk, *
95 * if a "large" stack frame is allocated. *
96 * gcc on MARM does not generate calls like these. */
97# define USE_HEAP_INSTEAD_OF_STACK
98#endif
99
dd134d2c 100/* Use the reentrant APIs like localtime_r and getpwent_r */
10bc17b6 101/* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
6239f2da 102#if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
10bc17b6
JH		 103# define USE_REENTRANT_API
104#endif
105
ac6bedea
JH		 106/* <--- here ends the logic shared by perl.h and makedef.pl */
107
9ea40801
SH		 108/* Microsoft Visual C++ 6.0 needs special treatment in numerous places */
109#if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300
110# define USING_MSVC6
111#endif
112
cf5a8da6
MHM		 113#undef START_EXTERN_C
114#undef END_EXTERN_C
115#undef EXTERN_C
116#ifdef __cplusplus
117# define START_EXTERN_C extern "C" {
118# define END_EXTERN_C }
119# define EXTERN_C extern "C"
120#else
121# define START_EXTERN_C
122# define END_EXTERN_C
123# define EXTERN_C extern
124#endif
125
17a6c8e3
AD		 126/* Fallback definitions in case we don't have definitions from config.h.
127 This should only matter for systems that don't use Configure and
128 haven't been modified to define PERL_STATIC_INLINE yet.
129*/
130#if !defined(PERL_STATIC_INLINE)
131# ifdef HAS_STATIC_INLINE
132# define PERL_STATIC_INLINE static inline
133# else
134# define PERL_STATIC_INLINE static
135# endif
136#endif
137
27da23d5
JH		 138#ifdef PERL_GLOBAL_STRUCT
139# ifndef PERL_GET_VARS
140# ifdef PERL_GLOBAL_STRUCT_PRIVATE
cf5a8da6 141 EXTERN_C struct perl_vars* Perl_GetVarsPrivate();
27da23d5 142# define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
27da23d5
JH		 143# else
144# define PERL_GET_VARS() PL_VarsPtr
145# endif
146# endif
147#endif
148
f0e5c859
DD		 149/* this used to be off by default, now its on, see perlio.h */
150#define PERLIO_FUNCS_CONST
151
5aaab254 152#define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL
27da23d5
JH		 153
154#ifdef PERL_GLOBAL_STRUCT
155# define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS()
156#else
157# define dVAR dNOOP
158#endif
159
c5be433b 160#ifdef PERL_IMPLICIT_CONTEXT
3db8f154
MB		 161# ifndef MULTIPLICITY
162# define MULTIPLICITY
c5be433b 163# endif
e8dda941 164# define tTHX PerlInterpreter*
5aaab254 165# define pTHX tTHX my_perl PERL_UNUSED_DECL
3db8f154 166# define aTHX my_perl
9399a70c 167# define aTHXa(a) aTHX = (tTHX)a
27da23d5 168# ifdef PERL_GLOBAL_STRUCT
e8dda941 169# define dTHXa(a) dVAR; pTHX = (tTHX)a
27da23d5 170# else
e8dda941 171# define dTHXa(a) pTHX = (tTHX)a
27da23d5
JH		 172# endif
173# ifdef PERL_GLOBAL_STRUCT
174# define dTHX dVAR; pTHX = PERL_GET_THX
175# else
176# define dTHX pTHX = PERL_GET_THX
177# endif
c5be433b 178# define pTHX_ pTHX,
c5be433b 179# define aTHX_ aTHX,
4373e329 180# define pTHX_1 2
894356b3
GS		 181# define pTHX_2 3
182# define pTHX_3 4
183# define pTHX_4 5
4373e329
AL		 184# define pTHX_5 6
185# define pTHX_6 7
a3b680e6
AL		 186# define pTHX_7 8
187# define pTHX_8 9
188# define pTHX_9 10
a6fc70e5 189# define pTHX_12 13
e8dda941
JD		 190# if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
191# define PERL_TRACK_MEMPOOL
192# endif
193#else
194# undef PERL_TRACK_MEMPOOL
c5be433b
GS		 195#endif
196
76e3520e 197#define STATIC static
16c91539
BM		 198
199#ifndef PERL_CORE
200/* Do not use these macros. They were part of PERL_OBJECT, which was an
201 * implementation of multiplicity using C++ objects. They have been left
202 * here solely for the sake of XS code which has incorrectly
203 * cargo-culted them.
204 */
76e3520e 205#define CPERLscope(x) x
565764a8 206#define CPERLarg void
76e3520e 207#define CPERLarg_
e3b8966e 208#define _CPERLarg
1d583055
GS		 209#define PERL_OBJECT_THIS
210#define _PERL_OBJECT_THIS
211#define PERL_OBJECT_THIS_
312caa8e 212#define CALL_FPTR(fptr) (*fptr)
ef69c8fc 213#define MEMBER_TO_FPTR(name) name
16c91539 214#endif /* !PERL_CORE */
76e3520e 215
16c91539 216#define CALLRUNOPS PL_runops
f9f4320a 217
3ab4a224 218#define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
f9f4320a 219
16c91539 220#define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags)
a340edde 221#define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \
16c91539 222 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \
a340edde 223 (strbeg),(minend),(sv),(data),(flags))
52a21eb3
DM		 224#define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \
225 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \
f9f4320a
YO		 226 (strend),(flags),(data))
227#define CALLREG_INTUIT_STRING(prog) \
16c91539 228 RX_ENGINE(prog)->checkstr(aTHX_ (prog))
f8149455 229
f8149455
YO		 230#define CALLREGFREE(prog) \
231 Perl_pregfree(aTHX_ (prog))
232
233#define CALLREGFREE_PVT(prog) \
fc6bde6f 234 if(prog) RX_ENGINE(prog)->rxfree(aTHX_ (prog))
f8149455 235
2fdbfb4d 236#define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \
16c91539 237 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv))
93b32b6d 238
2fdbfb4d 239#define CALLREG_NUMBUF_STORE(rx,paren,value) \
16c91539 240 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value))
2fdbfb4d
AB		 241
242#define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \
16c91539 243 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren))
2fdbfb4d 244
192b9cd1 245#define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
16c91539 246 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
192b9cd1
AB		 247
248#define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
16c91539 249 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
192b9cd1
AB		 250
251#define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
16c91539 252 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
192b9cd1
AB		 253
254#define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
16c91539 255 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
192b9cd1
AB		 256
257#define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
16c91539 258 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
192b9cd1
AB		 259
260#define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
16c91539 261 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
192b9cd1
AB		 262
263#define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
16c91539 264 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
192b9cd1
AB		 265
266#define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
16c91539 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
192b9cd1
AB		 268
269#define CALLREG_NAMED_BUFF_COUNT(rx) \
16c91539 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
192b9cd1
AB		 271
272#define CALLREG_NAMED_BUFF_ALL(rx, flags) \
16c91539 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags)
93b32b6d 274
49d7dfbc 275#define CALLREG_PACKAGE(rx) \
16c91539 276 RX_ENGINE(rx)->qr_package(aTHX_ (rx))
93b32b6d 277
00f254e2 278#if defined(USE_ITHREADS)
f9f4320a 279#define CALLREGDUPE(prog,param) \
f8149455
YO		 280 Perl_re_dup(aTHX_ (prog),(param))
281
282#define CALLREGDUPE_PVT(prog,param) \
16c91539 283 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \
00f254e2 284 : (REGEXP *)NULL)
f9f4320a 285#endif
14dd3ad8 286
a20207d7 287
bcdf7404 288
a20207d7
YO		 289
290
5ba4cab2
SH		 291/*
292 * Because of backward compatibility reasons the PERL_UNUSED_DECL
293 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh.
294 *
295 * Note that there are C compilers such as MetroWerks CodeWarrior
1266ad8c 296 * which do not have an "inlined" way (like the gcc __attribute__) of
5ba4cab2
SH		 297 * marking unused variables (they need e.g. a #pragma) and therefore
298 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
299 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
300 *
301 */
1266ad8c 302
9969cdde 303#if defined(__SYMBIAN32__) && defined(__GNUC__)
5b2bd0a5 304# ifdef __cplusplus
5ba4cab2 305# define PERL_UNUSED_DECL
5b2bd0a5 306# else
5ba4cab2 307# define PERL_UNUSED_DECL __attribute__((unused))
5b2bd0a5
AMS		 308# endif
309#endif
44dbb695 310
5b2bd0a5 311#ifndef PERL_UNUSED_DECL
f7a9299a 312# if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
5ba4cab2 313# define PERL_UNUSED_DECL __attribute__unused__
b79c357a 314# else
5ba4cab2 315# define PERL_UNUSED_DECL
b79c357a 316# endif
5b2bd0a5 317#endif
00f254e2 318
349b520e
DM		 319/* gcc -Wall:
320 * for silencing unused variables that are actually used most of the time,
a730e3f2
JH		 321 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs,
322 * or variables/arguments that are used only in certain configurations.
349b520e 323 */
53c1dcc0 324#ifndef PERL_UNUSED_ARG
c99ffe5e 325# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
ad73156c 326# include <note.h>
53c1dcc0 327# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
ad73156c 328# else
a730e3f2 329# define PERL_UNUSED_ARG(x) ((void)sizeof(x))
ad73156c
AL		 330# endif
331#endif
53c1dcc0 332#ifndef PERL_UNUSED_VAR
a730e3f2 333# define PERL_UNUSED_VAR(x) ((void)sizeof(x))
53c1dcc0 334#endif
ad73156c 335
23491f1d 336#if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT)
96a5add6
AL		 337# define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
338#else
339# define PERL_UNUSED_CONTEXT
340#endif
341
24e7ff4e
JH		 342/* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
343 * g++ allows them but seems to have problems with them
344 * (insane errors ensue).
345 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2).
346 */
347#if defined(PERL_GCC_PEDANTIC) || \
348 (defined(__GNUC__) && defined(__cplusplus) && \
349 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2))))
350# ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
351# define PERL_GCC_BRACE_GROUPS_FORBIDDEN
352# endif
353#endif
354
ffea512f 355/* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results
b469f1e0
JH		 356 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)).
357 *
358 * The main reason for this is that the combination of gcc -Wunused-result
359 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot
360 * be silenced with casting to void. This causes trouble when the system
361 * header files use the attribute.
362 *
363 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning
364 * is there for a good reason: you might lose success/failure information,
365 * or leak resources, or changes in resources.
ffea512f
JH		 366 *
367 * But sometimes you just want to ignore the return value, e.g. on
b469f1e0
JH		 368 * codepaths soon ending up in abort, or in "best effort" attempts,
369 * or in situations where there is no good way to handle failures.
ffea512f 370 *
b469f1e0
JH		 371 * Sometimes PERL_UNUSED_RESULT might not be the most natural way:
372 * another possibility is that you can capture the return value
373 * and use PERL_UNUSED_VAR on that.
ffea512f 374 *
b469f1e0
JH		 375 * The __typeof__() is used instead of typeof() since typeof() is not
376 * available under strict C89, and because of compilers masquerading
377 * as gcc (clang and icc), we want exactly the gcc extension
378 * __typeof__ and nothing else.
ffea512f
JH		 379 */
380#ifndef PERL_UNUSED_RESULT
b469f1e0
JH		 381# if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT)
382# define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END
ffea512f
JH		 383# else
384# define PERL_UNUSED_RESULT(v) ((void)(v))
385# endif
386#endif
387
b56aac20
DM		 388/* on gcc (and clang), specify that a warning should be temporarily
389 * ignored; e.g.
390 *
391 * GCC_DIAG_IGNORE(-Wmultichar);
392 * char b = 'ab';
393 * GCC_DIAG_RESTORE;
394 *
395 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html
396 *
397 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011;
398 * clang only pretends to be GCC 4.2, but still supports push/pop.
c1d6452f
JH		 399 *
400 * Note on usage: on non-gcc (or lookalike, like clang) compilers
401 * one cannot use these at file (global) level without warnings
402 * since they are defined as empty, which leads into the terminating
403 * semicolon being left alone on a line:
404 * ;
405 * which makes compilers mildly cranky. Therefore at file level one
6ab56f1e
JH		 406 * should use the GCC_DIAG_IGNORE and GCC_DIAG_RESTORE_FILE *without*
407 * the semicolons.
c1d6452f
JH		 408 *
409 * (A dead-on-arrival solution would be to try to define the macros as
410 * NOOP or dNOOP, those don't work both inside functions and outside.)
b56aac20
DM		 411 */
412
57d4b8c5 413#if defined(__clang__) || defined(__clang) || \
d28ce8b4 414 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406)
c1d6452f
JH		 415# define GCC_DIAG_PRAGMA(x) _Pragma (#x)
416/* clang has "clang diagnostic" pragmas, but also understands gcc. */
b56aac20 417# define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \
c1d6452f 418 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x)
b56aac20
DM		 419# define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop")
420#else
8ce6f80a
JH		 421# define GCC_DIAG_IGNORE(w)
422# define GCC_DIAG_RESTORE
b56aac20
DM		 423#endif
424
6f207bd3 425#define NOOP /*EMPTY*/(void)0
bafdc25d
NC		 426/* cea2e8a9dd23747f accidentally lost the comment originally from the first
427 check in of thread.h, explaining why we need dNOOP at all: */
428/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
429/* Declaring a *function*, instead of a variable, ensures that we don't rely
430 on being able to suppress "unused" warnings. */
7db66e12
CB		 431#ifdef __cplusplus
432#define dNOOP (void)0
433#else
64a8239e 434#define dNOOP extern int Perl___notused(void)
7db66e12 435#endif
71be2cbc 436
0cb96387 437#ifndef pTHX
a78adc84 438/* Don't bother defining tTHX ; using it outside
e8dda941
JD		 439 * code guarded by PERL_IMPLICIT_CONTEXT is an error.
440 */
0cb96387
GS		 441# define pTHX void
442# define pTHX_
0cb96387
GS		 443# define aTHX
444# define aTHX_
9399a70c 445# define aTHXa(a) NOOP
0cb96387
GS		 446# define dTHXa(a) dNOOP
447# define dTHX dNOOP
894356b3
GS		 448# define pTHX_1 1
449# define pTHX_2 2
450# define pTHX_3 3
451# define pTHX_4 4
3d42dc86
RGS		 452# define pTHX_5 5
453# define pTHX_6 6
a3b680e6
AL		 454# define pTHX_7 7
455# define pTHX_8 8
456# define pTHX_9 9
a6fc70e5 457# define pTHX_12 12
0cb96387
GS		 458#endif
459
27da23d5
JH		 460#ifndef dVAR
461# define dVAR dNOOP
462#endif
463
b4f7f263
GS		 464/* these are only defined for compatibility; should not be used internally */
465#if !defined(pTHXo) && !defined(PERL_CORE)
0cb96387
GS		 466# define pTHXo pTHX
467# define pTHXo_ pTHX_
0cb96387
GS		 468# define aTHXo aTHX
469# define aTHXo_ aTHX_
c5be433b 470# define dTHXo dTHX
71d280e3 471# define dTHXoa(x) dTHXa(x)
0cb96387
GS		 472#endif
473
474#ifndef pTHXx
5aaab254 475# define pTHXx PerlInterpreter *my_perl
0cb96387 476# define pTHXx_ pTHXx,
0cb96387
GS		 477# define aTHXx my_perl
478# define aTHXx_ aTHXx,
c5be433b 479# define dTHXx dTHX
22c35a8c 480#endif
71be2cbc 481
1de7c2ac
GS		 482/* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
483 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
484 * dTHXs is therefore needed for all functions using PerlIO_foo(). */
485#ifdef PERL_IMPLICIT_SYS
27da23d5
JH		 486# ifdef PERL_GLOBAL_STRUCT_PRIVATE
487# define dTHXs dVAR; dTHX
488# else
489# define dTHXs dTHX
490# endif
1de7c2ac 491#else
27da23d5
JH		 492# ifdef PERL_GLOBAL_STRUCT_PRIVATE
493# define dTHXs dVAR
494# else
495# define dTHXs dNOOP
496# endif
1de7c2ac
GS		 497#endif
498
5b692037
JH		 499#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
500# ifndef PERL_USE_GCC_BRACE_GROUPS
501# define PERL_USE_GCC_BRACE_GROUPS
502# endif
503#endif
504
728e2803 505/*
506 * STMT_START { statements; } STMT_END;
507 * can be used as a single statement, as in
508 * if (x) STMT_START { ... } STMT_END; else ...
509 *
510 * Trying to select a version that gives no warnings...
511 */
512#if !(defined(STMT_START) && defined(STMT_END))
5b692037 513# ifdef PERL_USE_GCC_BRACE_GROUPS
a0288114 514# define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */
728e2803 515# define STMT_END )
516# else
728e2803 517# define STMT_START do
518# define STMT_END while (0)
728e2803 519# endif
520#endif
521
d6f9c181
JH		 522#ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */
523# define BYTEORDER 0x1234
79072805
LW		 524#endif
525
526/* Overall memory policy? */
527#ifndef CONSERVATIVE
528# define LIBERAL 1
529#endif
530
8ada0baa
JH		 531#if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
532#define ASCIIish
533#else
534#undef ASCIIish
535#endif
536
79072805
LW		 537/*
538 * The following contortions are brought to you on behalf of all the
539 * standards, semi-standards, de facto standards, not-so-de-facto standards
540 * of the world, as well as all the other botches anyone ever thought of.
541 * The basic theory is that if we work hard enough here, the rest of the
542 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
543 */
ac58e20f 544
ee0007ab 545/* define this once if either system, instead of cluttering up the src */
7c458fae 546#if defined(MSDOS) || defined(WIN32) || defined(NETWARE)
ee0007ab
LW		 547#define DOSISH 1
548#endif
549
739a0b84 550#if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(NETWARE) || defined(__SYMBIAN32__)
352d5a3a
LW		 551# define STANDARD_C 1
552#endif
553
8d87852b 554#if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
68dc0745 555# define DONT_DECLARE_STD 1
556#endif
557
352d5a3a 558#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 559# define VOL volatile
663a0e37 560#else
79072805 561# define VOL
663a0e37
LW		 562#endif
563
284167a5
S		 564/* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT,
565 * you get a perl without taint support, but doubtlessly with a lesser
566 * degree of support. Do not do so unless you know exactly what it means
567 * technically, have a good reason to do so, and know exactly how the
568 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered
569 * a potential security risk due to flat out ignoring the security-relevant
570 * taint flags. This being said, a perl without taint support compiled in
571 * has marginal run-time performance benefits.
572 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT.
573 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it
574 * silently ignores -t/-T instead of throwing an exception.
053a3618
S		 575 *
576 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT
6ecb40c7 577 * voids your nonexistent warranty!
284167a5 578 */
dc6d7f5c 579#if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT)
284167a5
S		 580# define NO_TAINT_SUPPORT 1
581#endif
582
583/* NO_TAINT_SUPPORT can be set to transform virtually all taint-related
584 * operations into no-ops for a very modest speed-up. Enable only if you
585 * know what you're doing: tests and CPAN modules' tests are bound to fail.
586 */
dc6d7f5c 587#ifdef NO_TAINT_SUPPORT
284167a5
S		 588# define TAINT NOOP
589# define TAINT_NOT NOOP
590# define TAINT_IF(c) NOOP
591# define TAINT_ENV() NOOP
592# define TAINT_PROPER(s) NOOP
593# define TAINT_set(s) NOOP
594# define TAINT_get 0
595# define TAINTING_get 0
596# define TAINTING_set(s) NOOP
597# define TAINT_WARN_get 0
598# define TAINT_WARN_set(s) NOOP
599#else
600# define TAINT (PL_tainted = TRUE)
601# define TAINT_NOT (PL_tainted = FALSE)
2439e033
S		 602# define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = TRUE; }
603# define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); }
604# define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); }
284167a5
S		 605# define TAINT_set(s) (PL_tainted = (s))
606# define TAINT_get (PL_tainted)
607# define TAINTING_get (PL_tainting)
608# define TAINTING_set(s) (PL_tainting = (s))
609# define TAINT_WARN_get (PL_taint_warn)
610# define TAINT_WARN_set(s) (PL_taint_warn = (s))
611#endif
a687059c 612
20be6587
DM		 613/* flags used internally only within pp_subst and pp_substcont */
614#ifdef PERL_CORE
615# define SUBST_TAINT_STR 1 /* string tainted */
616# define SUBST_TAINT_PAT 2 /* pattern tainted */
617# define SUBST_TAINT_REPL 4 /* replacement tainted */
618# define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */
619# define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */
620#endif
621
d460ef45 622/* XXX All process group stuff is handled in pp_sys.c. Should these
a6e633de 623 defines move there? If so, I could simplify this a lot. --AD 9/96.
624*/
625/* Process group stuff changed from traditional BSD to POSIX.
626 perlfunc.pod documents the traditional BSD-style syntax, so we'll
627 try to preserve that, if possible.
628*/
629#ifdef HAS_SETPGID
630# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 631#else
a6e633de 632# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
633# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
634# else
635# ifdef HAS_SETPGRP2 /* DG/UX */
636# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
637# endif
638# endif
639#endif
640#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
641# define HAS_SETPGRP /* Well, effectively it does . . . */
642#endif
643
644/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
645 our life easier :-) so we'll try it.
646*/
647#ifdef HAS_GETPGID
648# define BSD_GETPGRP(pid) getpgid((pid))
649#else
650# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
651# define BSD_GETPGRP(pid) getpgrp((pid))
652# else
653# ifdef HAS_GETPGRP2 /* DG/UX */
654# define BSD_GETPGRP(pid) getpgrp2((pid))
655# endif
656# endif
657#endif
658#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
659# define HAS_GETPGRP /* Well, effectively it does . . . */
660#endif
661
d460ef45 662/* These are not exact synonyms, since setpgrp() and getpgrp() may
a6e633de 663 have different behaviors, but perl.h used to define USE_BSDPGRP
664 (prior to 5.003_05) so some extension might depend on it.
665*/
666#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
667# ifndef USE_BSDPGRP
668# define USE_BSDPGRP
669# endif
663a0e37
LW		 670#endif
671
486ec47a 672/* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that
8ac5a1fe
MH		 673 pthread.h must be included before all other header files.
674*/
3db8f154 675#if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
8ac5a1fe
MH		 676# include <pthread.h>
677#endif
678
58ab9e8b 679#include <sys/types.h>
663a0e37 680
760ac839
LW		 681#ifdef __cplusplus
682# ifndef I_STDARG
683# define I_STDARG 1
684# endif
685#endif
686
c7925a5e
DD		 687/* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h
688 which is included from stdarg.h. Bad definition not present in SD 2008
689 SDK headers. wince.h is not yet included, so we cant fix this from there
690 since by then MB_CUR_MAX will be defined from stdlib.h.
691 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here
692 since cewchar.h can't be included this early */
693#if defined(UNDER_CE) && (_MSC_VER < 1300)
694# define MB_CUR_MAX 1
695#endif
760ac839
LW		 696#ifdef I_STDARG
697# include <stdarg.h>
698#else
699# ifdef I_VARARGS
700# include <varargs.h>
701# endif
702#endif
703
27db2737
JH		 704#ifdef I_STDINT
705# include <stdint.h>
706#endif
707
fe14fcc3 708#include <ctype.h>
a0d0e21e
LW		 709
710#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
711#undef METHOD
a0d0e21e
LW		 712#endif
713
12ae5dfc
JH		 714#ifdef PERL_MICRO
715# define NO_LOCALE
716#endif
717
4633a7c4 718#ifdef I_LOCALE
36477c24 719# include <locale.h>
4633a7c4
LW		 720#endif
721
36477c24 722#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
723# define USE_LOCALE
ccd65d51
KW		 724# define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this
725 capability */
36477c24 726# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
727 && defined(HAS_STRXFRM)
728# define USE_LOCALE_COLLATE
729# endif
730# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
731# define USE_LOCALE_CTYPE
732# endif
733# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
734# define USE_LOCALE_NUMERIC
735# endif
fa9b773e
KW		 736# if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES)
737# define USE_LOCALE_MESSAGES
738# endif
739# if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY)
740# define USE_LOCALE_MONETARY
741# endif
56e45410
KW		 742# if !defined(NO_LOCALE_TIME) && defined(LC_TIME)
743# define USE_LOCALE_TIME
744# endif
b385bb4d
KW		 745# ifndef WIN32 /* No wrapper except on Windows */
746# define my_setlocale(a,b) setlocale(a,b)
747# endif
36477c24 748#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 749
3e669301
KW		 750/* Is $^ENCODING set, or are we under the encoding pragma? */
751#define IN_ENCODING UNLIKELY(PL_encoding \
752 || (PL_lex_encoding && _get_encoding() != NULL))
47e13f24 753
fe14fcc3 754#include <setjmp.h>
79072805 755
a0d0e21e 756#ifdef I_SYS_PARAM
79072805
LW		 757# ifdef PARAM_NEEDS_TYPES
758# include <sys/types.h>
759# endif
760# include <sys/param.h>
352d5a3a 761#endif
79072805 762
ce3470dc
AD		 763/* On BSD-derived systems, <sys/param.h> defines BSD to a year-month
764 value something like 199306. This may be useful if no more-specific
765 feature test is available.
766*/
767#if defined(BSD)
768# ifndef BSDish
769# define BSDish
770# endif
771#endif
772
79072805 773/* Use all the "standard" definitions? */
a0d0e21e 774#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 775# include <stdlib.h>
ff68c719 776#endif
03a14243 777
3f270f98
JH		 778/* If this causes problems, set i_unistd=undef in the hint file. */
779#ifdef I_UNISTD
763ee752
AB		 780# if defined(__amigaos4__)
781# ifdef I_NETINET_IN
782# include <netinet/in.h>
783# endif
784# endif
3f270f98 785# include <unistd.h>
6e3136a6
AB		 786# if defined(__amigaos4__)
787/* Under AmigaOS 4 newlib.library provides an environ. However using
788 * it doesn't give us enough control over inheritance of variables by
789 * subshells etc. so replace with custom version based on abc-shell
790 * code. */
791extern char **myenviron;
792# undef environ
793# define environ myenviron
794# endif
3f270f98
JH		 795#endif
796
de8ca8af
NT		 797/* for WCOREDUMP */
798#ifdef I_SYS_WAIT
799# include <sys/wait.h>
800#endif
801
9969cdde 802#ifdef __SYMBIAN32__
27da23d5
JH		 803# undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
804#endif
805
21e89b5f 806#if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO)
c45598c5 807EXTERN_C int syscall(int, ...);
2ef53570
JH		 808#endif
809
21e89b5f 810#if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO)
c45598c5 811EXTERN_C int usleep(unsigned int);
2ef53570
JH		 812#endif
813
1109a392
MHM		 814#ifdef PERL_CORE
815
816/* macros for correct constant construction */
817# if INTSIZE >= 2
818# define U16_CONST(x) ((U16)x##U)
819# else
820# define U16_CONST(x) ((U16)x##UL)
821# endif
822
823# if INTSIZE >= 4
824# define U32_CONST(x) ((U32)x##U)
825# else
826# define U32_CONST(x) ((U32)x##UL)
827# endif
828
829# ifdef HAS_QUAD
830# if INTSIZE >= 8
831# define U64_CONST(x) ((U64)x##U)
832# elif LONGSIZE >= 8
833# define U64_CONST(x) ((U64)x##UL)
834# elif QUADKIND == QUAD_IS_LONG_LONG
835# define U64_CONST(x) ((U64)x##ULL)
52865553
SH		 836# elif QUADKIND == QUAD_IS___INT64
837# define U64_CONST(x) ((U64)x##UI64)
1109a392
MHM		 838# else /* best guess we can make */
839# define U64_CONST(x) ((U64)x##UL)
840# endif
841# endif
842
843/* byte-swapping functions for big-/little-endian conversion */
844# define _swab_16_(x) ((U16)( \
845 (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
846 (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
847
848# define _swab_32_(x) ((U32)( \
849 (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
850 (((U32)(x) & U32_CONST(0x0000ff00)) << 8) | \
851 (((U32)(x) & U32_CONST(0x00ff0000)) >> 8) | \
852 (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
853
854# ifdef HAS_QUAD
855# define _swab_64_(x) ((U64)( \
856 (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
857 (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
858 (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
859 (((U64)(x) & U64_CONST(0x00000000ff000000)) << 8) | \
860 (((U64)(x) & U64_CONST(0x000000ff00000000)) >> 8) | \
861 (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
862 (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
863 (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
864# endif
865
9c17f24a
NC		 866/* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
867 at least on FreeBSD. YMMV, so experiment. */
868#ifndef PERL_ARENA_SIZE
869#define PERL_ARENA_SIZE 4080
870#endif
871
ccb2c8b8 872/* Maximum level of recursion */
2b9dff67
RGS		 873#ifndef PERL_SUB_DEPTH_WARN
874#define PERL_SUB_DEPTH_WARN 100
ccb2c8b8
RGS		 875#endif
876
1109a392
MHM		 877#endif /* PERL_CORE */
878
bdf3085f
NC		 879/* We no longer default to creating a new SV for GvSV.
880 Do this before embed. */
881#ifndef PERL_CREATE_GVSV
7459f06b
NC		 882# ifndef PERL_DONT_CREATE_GVSV
883# define PERL_DONT_CREATE_GVSV
884# endif
bdf3085f
NC		 885#endif
886
ca0c25f6
NC		 887#if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
888#define PERL_USES_PL_PIDSTATUS
889#endif
890
739a0b84 891#if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__)
a62746fa
RGS		 892#define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
893#endif
894
c31fac66
GS		 895#define MEM_SIZE Size_t
896
1936d2a7
NC		 897/* Round all values passed to malloc up, by default to a multiple of
898 sizeof(size_t)
899*/
900#ifndef PERL_STRLEN_ROUNDUP_QUANTUM
901#define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
902#endif
903
f1200559
WH		 904/* sv_grow() will expand strings by at least a certain percentage of
905 the previously *used* length to avoid excessive calls to realloc().
906 The default is 25% of the current length.
907*/
908#ifndef PERL_STRLEN_EXPAND_SHIFT
909# define PERL_STRLEN_EXPAND_SHIFT 2
910#endif
911
3800c318 912#if defined(STANDARD_C) && defined(I_STDDEF) && !defined(PERL_GCC_PEDANTIC)
51371543
GS		 913# include <stddef.h>
914# define STRUCT_OFFSET(s,m) offsetof(s,m)
915#else
916# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
d0b86e2f
BF		 917#endif
918
919/* ptrdiff_t is C11, so undef it under pedantic builds */
920#ifdef PERL_GCC_PEDANTIC
921# undef HAS_PTRDIFF_T
51371543
GS		 922#endif
923
9969cdde 924#ifndef __SYMBIAN32__
27da23d5
JH		 925# if defined(I_STRING) || defined(__cplusplus)
926# include <string.h>
927# else
928# include <strings.h>
929# endif
51371543
GS		 930#endif
931
55497cff 932/* This comes after <stdlib.h> so we don't try to change the standard
933 * library prototypes; we'll use our own in proto.h instead. */
03a14243 934
4633a7c4 935#ifdef MYMALLOC
86058a2d 936# ifdef PERL_POLLUTE_MALLOC
ee13e175 937# ifndef PERL_EXTMALLOC_DEF
86058a2d
GS		 938# define Perl_malloc malloc
939# define Perl_calloc calloc
940# define Perl_realloc realloc
941# define Perl_mfree free
ee13e175 942# endif
86058a2d
GS		 943# else
944# define EMBEDMYMALLOC /* for compatibility */
945# endif
827e134a 946
651b9576
GS		 947# define safemalloc Perl_malloc
948# define safecalloc Perl_calloc
949# define saferealloc Perl_realloc
950# define safefree Perl_mfree
22f7c9c9
JH		 951# define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \
952 if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read]) \
953 code; \
954 } STMT_END
955# define CHECK_MALLOC_TOO_LATE_FOR(ch) \
956 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
957# define panic_write2(s) write(2, s, strlen(s))
958# define CHECK_MALLOC_TAINT(newval) \
959 CHECK_MALLOC_TOO_LATE_FOR_( \
960 if (newval) { \
acfd4d8e 961 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\
22f7c9c9 962 exit(1); })
22f7c9c9 963# define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \
b0891165 964 if (doing_taint(argc,argv,env)) { \
22f7c9c9
JH		 965 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \
966 }} STMT_END;
f2517201
GS		 967#else /* MYMALLOC */
968# define safemalloc safesysmalloc
969# define safecalloc safesyscalloc
970# define saferealloc safesysrealloc
971# define safefree safesysfree
22f7c9c9
JH		 972# define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0)
973# define CHECK_MALLOC_TAINT(newval) ((void)0)
974# define MALLOC_CHECK_TAINT(argc,argv,env)
55497cff 975#endif /* MYMALLOC */
4633a7c4 976
fe13d51d 977/* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */
27da23d5 978#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		 979#define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "")
980#define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
981#define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL)
982
a0d0e21e
LW		 983#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
984#define strchr index
985#define strrchr rindex
986#endif
987
16d20bd9
AD		 988#ifdef I_MEMORY
989# include <memory.h>
990#endif
991
fe14fcc3 992#ifdef HAS_MEMCPY
85e6fe83 993# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 994# ifndef memcpy
20ce7b12 995 extern char * memcpy (char*, char*, int);
ee0007ab
LW		 996# endif
997# endif
998#else
999# ifndef memcpy
1000# ifdef HAS_BCOPY
1001# define memcpy(d,s,l) bcopy(s,d,l)
1002# else
1003# define memcpy(d,s,l) my_bcopy(s,d,l)
1004# endif
1005# endif
1006#endif /* HAS_MEMCPY */
fe14fcc3 1007
ee0007ab 1008#ifdef HAS_MEMSET
85e6fe83 1009# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1010# ifndef memset
20ce7b12 1011 extern char *memset (char*, int, int);
ee0007ab
LW		 1012# endif
1013# endif
ee0007ab 1014#else
12ae5dfc 1015# undef memset
fc36a67e 1016# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 1017#endif /* HAS_MEMSET */
1018
85e6fe83 1019#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 1020# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 1021# define memmove(d,s,l) bcopy(s,d,l)
1022# else
2304df62 1023# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 1024# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 1025# else
79072805 1026# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 1027# endif
352d5a3a 1028# endif
d9d8d8de 1029#endif
ee0007ab 1030
36477c24 1031#if defined(mips) && defined(ultrix) && !defined(__STDC__)
1032# undef HAS_MEMCMP
1033#endif
1034
1035#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 1036# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 1037# ifndef memcmp
20ce7b12 1038 extern int memcmp (char*, char*, int);
ee0007ab
LW		 1039# endif
1040# endif
1041#else
1042# ifndef memcmp
ecfc5424 1043# define memcmp my_memcmp
352d5a3a 1044# endif
36477c24 1045#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 1046
fc36a67e 1047#ifndef memzero
c635e13b 1048# ifdef HAS_MEMSET
1049# define memzero(d,l) memset(d,0,l)
79072805 1050# else
c635e13b 1051# ifdef HAS_BZERO
1052# define memzero(d,l) bzero(d,l)
79072805 1053# else
fc36a67e 1054# define memzero(d,l) my_bzero(d,l)
79072805
LW		 1055# endif
1056# endif
d9d8d8de 1057#endif
378cc40b 1058
2f42fcb0 1059#ifndef PERL_MICRO
0f27ced1
JH		 1060#ifndef memchr
1061# ifndef HAS_MEMCHR
1062# define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1063# endif
1064#endif
2f42fcb0 1065#endif
0f27ced1 1066
36477c24 1067#ifndef HAS_BCMP
1068# ifndef bcmp
1069# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 1070# endif
36477c24 1071#endif /* !HAS_BCMP */
378cc40b 1072
ae986130 1073#ifdef I_NETINET_IN
79072805 1074# include <netinet/in.h>
ae986130
LW		 1075#endif
1076
28e8609d
JH		 1077#ifdef I_ARPA_INET
1078# include <arpa/inet.h>
1079#endif
1080
1aef975c 1081#ifdef I_SYS_STAT
84902520 1082# include <sys/stat.h>
1aef975c 1083#endif
79072805 1084
287a962e
JD		 1085/* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO.
1086 This definition should ideally go into win32/win32.h, but S_IFIFO is
1087 used later here in perl.h before win32/win32.h is being included. */
1088#if !defined(S_IFIFO) && defined(_S_IFIFO)
1089# define S_IFIFO _S_IFIFO
1090#endif
1091
cc3315ba 1092/* The stat macros for Unisoft System V/88 (and derivatives
a0d0e21e
LW		 1093 like UTekV) are broken, sometimes giving false positives. Undefine
1094 them here and let the code below set them to proper values.
1095
1096 The ghs macro stands for GreenHills Software C-1.8.5 which
1097 is the C compiler for sysV88 and the various derivatives.
1098 This header file bug is corrected in gcc-2.5.8 and later versions.
1099 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
1100
cc3315ba 1101#if defined(m88k) && defined(ghs)
79072805
LW		 1102# undef S_ISDIR
1103# undef S_ISCHR
1104# undef S_ISBLK
1105# undef S_ISREG
1106# undef S_ISFIFO
1107# undef S_ISLNK
ee0007ab 1108#endif
135863df 1109
663a0e37
LW		 1110#ifdef I_TIME
1111# include <time.h>
ffed7fef 1112#endif
663a0e37 1113
fe14fcc3 1114#ifdef I_SYS_TIME
85e6fe83 1115# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1116# define KERNEL
1117# endif
1118# include <sys/time.h>
85e6fe83 1119# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 1120# undef KERNEL
1121# endif
a687059c 1122#endif
135863df 1123
55497cff 1124#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 1125# include <sys/times.h>
d9d8d8de 1126#endif
8d063cd8 1127
fe14fcc3 1128#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 1129# undef HAS_STRERROR
663a0e37
LW		 1130#endif
1131
1132#include <errno.h>
1e743fda 1133
acfe0abc 1134#if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
b4748376
NIS		 1135# define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */
1136#endif
1137
da70cfc6 1138#if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */
1e743fda
JH		 1139# include <sys/socket.h>
1140# if defined(USE_SOCKS) && defined(I_SOCKS)
1141# if !defined(INCLUDE_PROTOTYPES)
1142# define INCLUDE_PROTOTYPES /* for <socks.h> */
1143# define PERL_SOCKS_NEED_PROTOTYPES
1144# endif
1145# include <socks.h>
1146# ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1147# undef INCLUDE_PROTOTYPES
1148# undef PERL_SOCKS_NEED_PROTOTYPES
ed6116ce 1149# endif
d460ef45 1150# endif
1e743fda 1151# ifdef I_NETDB
2986a63f
JH		 1152# ifdef NETWARE
1153# include<stdio.h>
1154# endif
1e743fda
JH		 1155# include <netdb.h>
1156# endif
1157# ifndef ENOTSOCK
1158# ifdef I_NET_ERRNO
1159# include <net/errno.h>
1160# endif
1161# endif
1162#endif
1163
fa0a29af 1164/* sockatmark() is so new (2001) that many places might have it hidden
29820b6d
MHM		 1165 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required
1166 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
fa0a29af 1167#if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
29820b6d
MHM		 1168# if defined(__THROW) && defined(__GLIBC__)
1169int sockatmark(int) __THROW;
1170# else
2ef53570 1171int sockatmark(int);
29820b6d 1172# endif
2ef53570
JH		 1173#endif
1174
7e827271 1175#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		 1176EXTERN_C int fchdir(int);
1177EXTERN_C int flock(int, int);
1178EXTERN_C int fseeko(FILE *, off_t, int);
1179EXTERN_C off_t ftello(FILE *);
1180#endif
1181
7e827271 1182#if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1ccb7c8d 1183EXTERN_C char *crypt(const char *, const char *);
7e827271 1184EXTERN_C char **environ;
1ccb7c8d
JH		 1185#endif
1186
83a6ff2e 1187#if defined(__cplusplus)
ce3470dc 1188# if defined(BSDish)
b91fbb93 1189EXTERN_C char **environ;
83a6ff2e 1190# elif defined(__CYGWIN__)
667e2948
SP		 1191EXTERN_C char *crypt(const char *, const char *);
1192#endif
83a6ff2e 1193#endif
667e2948 1194
1e743fda
JH		 1195#ifdef SETERRNO
1196# undef SETERRNO /* SOCKS might have defined this */
ed6116ce 1197#endif
f86702cc 1198
1199#ifdef VMS
1200# define SETERRNO(errcode,vmserrcode) \
1201 STMT_START { \
1202 set_errno(errcode); \
1203 set_vaxc_errno(vmserrcode); \
1204 } STMT_END
4ee39169
CS		 1205# define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno
1206# define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno
1207# define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno )
1208# define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno)
1209
93189314
JH		 1210# define LIB_INVARG LIB$_INVARG
1211# define RMS_DIR RMS$_DIR
1212# define RMS_FAC RMS$_FAC
1213# define RMS_FEX RMS$_FEX
1214# define RMS_FNF RMS$_FNF
1215# define RMS_IFI RMS$_IFI
1216# define RMS_ISI RMS$_ISI
1217# define RMS_PRV RMS$_PRV
1218# define SS_ACCVIO SS$_ACCVIO
1219# define SS_DEVOFFLINE SS$_DEVOFFLINE
1220# define SS_IVCHAN SS$_IVCHAN
1221# define SS_NORMAL SS$_NORMAL
8a9f18be 1222# define SS_NOPRIV SS$_NOPRIV
4388f261 1223# define SS_BUFFEROVF SS$_BUFFEROVF
748a9306 1224#else
93189314
JH		 1225# define LIB_INVARG 0
1226# define RMS_DIR 0
1227# define RMS_FAC 0
1228# define RMS_FEX 0
1229# define RMS_FNF 0
1230# define RMS_IFI 0
1231# define RMS_ISI 0
1232# define RMS_PRV 0
1233# define SS_ACCVIO 0
1234# define SS_DEVOFFLINE 0
1235# define SS_IVCHAN 0
1236# define SS_NORMAL 0
8a9f18be 1237# define SS_NOPRIV 0
4388f261 1238# define SS_BUFFEROVF 0
748a9306 1239#endif
ed6116ce 1240
6ca940a9
TC		 1241#ifdef WIN32
1242# define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno
1243# define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError()
1244# define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() )
1245# define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) )
1246#endif
1247
1248#ifdef OS2
1249# define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno
1250# define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc
1251# define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc )
1252# define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno )
1253#endif
1254
1255#ifndef SETERRNO
1256# define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1257#endif
1258
1259#ifndef dSAVEDERRNO
1260# define dSAVEDERRNO int saved_errno
1261# define dSAVE_ERRNO int saved_errno = errno
1262# define SAVE_ERRNO (saved_errno = errno)
1263# define RESTORE_ERRNO (errno = saved_errno)
1264#endif
1265
f5fa9033 1266#define ERRSV GvSVn(PL_errgv)
dfd167e9 1267
b4f8d149 1268/* contains inlined gv_add_by_type */
dfd167e9 1269#define CLEAR_ERRSV() STMT_START { \
b4f8d149
DD		 1270 SV ** const svp = &GvSV(PL_errgv); \
1271 if (!*svp) { \
1272 goto clresv_newemptypv; \
1273 } else if (SvREADONLY(*svp)) { \
1274 SvREFCNT_dec_NN(*svp); \
1275 clresv_newemptypv: \
1276 *svp = newSVpvs(""); \
dfd167e9 1277 } else { \
b4f8d149 1278 SV *const errsv = *svp; \
dfd167e9 1279 sv_setpvs(errsv, ""); \
b4f8d149 1280 SvPOK_only(errsv); \
dfd167e9
NC		 1281 if (SvMAGICAL(errsv)) { \
1282 mg_free(errsv); \
1283 } \
dfd167e9
NC		 1284 } \
1285 } STMT_END
1286
1287
414bf5ae
MHM		 1288#ifdef PERL_CORE
1289# define DEFSV (0 + GvSVn(PL_defgv))
55b5114f
FC		 1290# define DEFSV_set(sv) \
1291 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv))
1292# define SAVE_DEFSV \
1293 ( \
1294 save_gp(PL_defgv, 0), \
1295 GvINTRO_off(PL_defgv), \
1296 SAVEGENERICSV(GvSV(PL_defgv)), \
1297 GvSV(PL_defgv) = NULL \
1298 )
414bf5ae
MHM		 1299#else
1300# define DEFSV GvSVn(PL_defgv)
55b5114f
FC		 1301# define DEFSV_set(sv) (GvSV(PL_defgv) = (sv))
1302# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
414bf5ae 1303#endif
38a03e6e 1304
55497cff 1305#ifndef errno
5ff3f7a4
GS		 1306 extern int errno; /* ANSI allows errno to be an lvalue expr.
1307 * For example in multithreaded environments
1308 * something like this might happen:
1309 * extern int *_errno(void);
1310 * #define errno (*_errno()) */
d9d8d8de 1311#endif
663a0e37 1312
7e996671
KW		 1313#define UNKNOWN_ERRNO_MSG "(unknown)"
1314
2304df62 1315#ifdef HAS_STRERROR
b3e384bf 1316# ifndef DONT_DECLARE_STD
a0d0e21e 1317# ifdef VMS
20ce7b12 1318 char *strerror (int,...);
a0d0e21e 1319# else
20ce7b12 1320 char *strerror (int);
a0d0e21e 1321# endif
b3e384bf
KW		 1322# endif
1323# ifndef Strerror
1324# define Strerror strerror
1325# endif
2304df62
AD		 1326#else
1327# ifdef HAS_SYS_ERRLIST
79072805
LW		 1328 extern int sys_nerr;
1329 extern char *sys_errlist[];
2304df62
AD		 1330# ifndef Strerror
1331# define Strerror(e) \
7e996671 1332 ((e) < 0 || (e) >= sys_nerr ? UNKNOWN_ERRNO_MSG : sys_errlist[e])
2304df62 1333# endif
79072805 1334# endif
35c8bce7 1335#endif
663a0e37 1336
2304df62 1337#ifdef I_SYS_IOCTL
79072805
LW		 1338# ifndef _IOCTL_
1339# include <sys/ioctl.h>
1340# endif
a687059c
LW		 1341#endif
1342
ee0007ab 1343#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 1344# ifdef HAS_SOCKETPAIR
1345# undef HAS_SOCKETPAIR
1346# endif
2304df62
AD		 1347# ifdef I_NDBM
1348# undef I_NDBM
79072805 1349# endif
a687059c
LW		 1350#endif
1351
02fc2eee
NC		 1352#ifndef HAS_SOCKETPAIR
1353# ifdef HAS_SOCKET
1354# define socketpair Perl_my_socketpair
1355# endif
1356#endif
1357
a687059c 1358#if INTSIZE == 2
79072805
LW		 1359# define htoni htons
1360# define ntohi ntohs
a687059c 1361#else
79072805
LW		 1362# define htoni htonl
1363# define ntohi ntohl
a687059c
LW		 1364#endif
1365
a0d0e21e 1366/* Configure already sets Direntry_t */
35c8bce7 1367#if defined(I_DIRENT)
663a0e37 1368# include <dirent.h>
ae986130 1369#else
fe14fcc3 1370# ifdef I_SYS_NDIR
79a0689e 1371# include <sys/ndir.h>
663a0e37 1372# else
fe14fcc3 1373# ifdef I_SYS_DIR
79a0689e
LW		 1374# ifdef hp9000s500
1375# include <ndir.h> /* may be wrong in the future */
1376# else
1377# include <sys/dir.h>
1378# endif
663a0e37
LW		 1379# endif
1380# endif
4633a7c4 1381#endif
a687059c 1382
c623bd54
LW		 1383/*
1384 * The following gobbledygook brought to you on behalf of __STDC__.
1385 * (I could just use #ifndef __STDC__, but this is more bulletproof
1386 * in the face of half-implementations.)
1387 */
1388
21e89b5f 1389#if defined(I_SYSMODE)
ca6e1c26
JH		 1390#include <sys/mode.h>
1391#endif
1392
c623bd54
LW		 1393#ifndef S_IFMT
1394# ifdef _S_IFMT
1395# define S_IFMT _S_IFMT
1396# else
1397# define S_IFMT 0170000
1398# endif
1399#endif
1400
1401#ifndef S_ISDIR
1402# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1403#endif
1404
1405#ifndef S_ISCHR
1406# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1407#endif
1408
1409#ifndef S_ISBLK
fe14fcc3
LW		 1410# ifdef S_IFBLK
1411# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1412# else
1413# define S_ISBLK(m) (0)
1414# endif
c623bd54
LW		 1415#endif
1416
1417#ifndef S_ISREG
1418# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1419#endif
1420
1421#ifndef S_ISFIFO
fe14fcc3
LW		 1422# ifdef S_IFIFO
1423# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1424# else
1425# define S_ISFIFO(m) (0)
1426# endif
c623bd54
LW		 1427#endif
1428
1429#ifndef S_ISLNK
1430# ifdef _S_ISLNK
1431# define S_ISLNK(m) _S_ISLNK(m)
1432# else
1433# ifdef _S_IFLNK
1434# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1435# else
1436# ifdef S_IFLNK
1437# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1438# else
1439# define S_ISLNK(m) (0)
1440# endif
1441# endif
1442# endif
1443#endif
1444
1445#ifndef S_ISSOCK
1446# ifdef _S_ISSOCK
1447# define S_ISSOCK(m) _S_ISSOCK(m)
1448# else
1449# ifdef _S_IFSOCK
1450# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1451# else
1452# ifdef S_IFSOCK
1453# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1454# else
1455# define S_ISSOCK(m) (0)
1456# endif
1457# endif
1458# endif
1459#endif
1460
1461#ifndef S_IRUSR
1462# ifdef S_IREAD
1463# define S_IRUSR S_IREAD
1464# define S_IWUSR S_IWRITE
1465# define S_IXUSR S_IEXEC
1466# else
1467# define S_IRUSR 0400
1468# define S_IWUSR 0200
1469# define S_IXUSR 0100
1470# endif
fac7cdfc
JS		 1471#endif
1472
1473#ifndef S_IRGRP
1474# ifdef S_IRUSR
1475# define S_IRGRP (S_IRUSR>>3)
1476# define S_IWGRP (S_IWUSR>>3)
1477# define S_IXGRP (S_IXUSR>>3)
1478# else
1479# define S_IRGRP 0040
1480# define S_IWGRP 0020
1481# define S_IXGRP 0010
1482# endif
1483#endif
1484
1485#ifndef S_IROTH
1486# ifdef S_IRUSR
1487# define S_IROTH (S_IRUSR>>6)
1488# define S_IWOTH (S_IWUSR>>6)
1489# define S_IXOTH (S_IXUSR>>6)
1490# else
1491# define S_IROTH 0040
1492# define S_IWOTH 0020
1493# define S_IXOTH 0010
1494# endif
c623bd54
LW		 1495#endif
1496
1497#ifndef S_ISUID
1498# define S_ISUID 04000
1499#endif
1500
1501#ifndef S_ISGID
1502# define S_ISGID 02000
1503#endif
1504
ca6e1c26
JH		 1505#ifndef S_IRWXU
1506# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
d460ef45 1507#endif
ca6e1c26
JH		 1508
1509#ifndef S_IRWXG
1510# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
d460ef45 1511#endif
ca6e1c26
JH		 1512
1513#ifndef S_IRWXO
1514# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
d460ef45 1515#endif
ca6e1c26 1516
b6c36746 1517/* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
c21fb2b8
JH		 1518 * which would get included through <sys/file.h >, but that is 3000
1519 * lines in the future. --jhi */
1520
b6c36746 1521#if !defined(S_IREAD) && !defined(__HAIKU__)
ca6e1c26
JH		 1522# define S_IREAD S_IRUSR
1523#endif
1524
b6c36746 1525#if !defined(S_IWRITE) && !defined(__HAIKU__)
ca6e1c26
JH		 1526# define S_IWRITE S_IWUSR
1527#endif
1528
1529#ifndef S_IEXEC
1530# define S_IEXEC S_IXUSR
1531#endif
1532
a0d0e21e 1533#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 1534# define SLOPPYDIVIDE
1535#endif
1536
748a9306
LW		 1537#ifdef UV
1538#undef UV
1539#endif
1540
ce582cee
NC		 1541/* For the times when you want the return value of sprintf, and you want it
1542 to be the length. Can't have a thread variable passed in, because C89 has
1543 no varargs macros.
1544*/
1545#ifdef SPRINTF_RETURNS_STRLEN
1546# define my_sprintf sprintf
1547#else
1548# define my_sprintf Perl_my_sprintf
1549#endif
1550
5b692037
JH		 1551/*
1552 * If we have v?snprintf() and the C99 variadic macros, we can just
1553 * use just the v?snprintf(). It is nice to try to trap the buffer
1554 * overflow, however, so if we are DEBUGGING, and we cannot use the
e5afc1ae
DD		 1555 * gcc statement expressions, then use the function wrappers which try
1556 * to trap the overflow. If we can use the gcc statement expressions,
1557 * we can try that even with the version that uses the C99 variadic
1558 * macros.
5b692037
JH		 1559 */
1560
1208b3dd
JH		 1561/* Note that we do not check against snprintf()/vsnprintf() returning
1562 * negative values because that is non-standard behaviour and we use
1563 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1564 * that should be true only if the snprintf()/vsnprintf() are true
1565 * to the standard. */
1566
e8549682
JH		 1567#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
1568
a4eca1d4
JH		 1569#ifdef USE_QUADMATH
1570# define my_snprintf Perl_my_snprintf
1571# define PERL_MY_SNPRINTF_GUARDED
1572#else
dfeee9b1 1573#if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1574# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1575# define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; })
1208b3dd 1576# define PERL_MY_SNPRINTF_GUARDED
5b692037 1577# else
e8549682 1578# define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1579# endif
1580#else
1581# define my_snprintf Perl_my_snprintf
1208b3dd 1582# define PERL_MY_SNPRINTF_GUARDED
5b692037 1583#endif
a4eca1d4 1584#endif
5b692037 1585
a4eca1d4
JH		 1586/* There is no quadmath_vsnprintf, and therefore my_vsnprintf()
1587 * dies if called under USE_QUADMATH. */
dfeee9b1 1588#if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
5b692037 1589# ifdef PERL_USE_GCC_BRACE_GROUPS
e8549682 1590# define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; })
1208b3dd 1591# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1592# else
e8549682 1593# define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__)
5b692037
JH		 1594# endif
1595#else
1596# define my_vsnprintf Perl_my_vsnprintf
1208b3dd 1597# define PERL_MY_VSNPRINTF_GUARDED
5b692037 1598#endif
d9fad198 1599
e8549682
JH		 1600/* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD()
1601 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore
1602 * the result of my_snprintf() or my_vsnprintf(). (No, you should not
1603 * completely ignore it: otherwise you cannot know whether your output
1604 * was too long.)
1605 *
1606 * int len = my_sprintf(buf, max, ...);
1607 * PERL_MY_SNPRINTF_POST_GUARD(len, max);
1608 *
1609 * The trick is that in certain platforms [a] the my_sprintf() already
1610 * contains the sanity check, while in certain platforms [b] it needs
1611 * to be done as a separate step. The POST_GUARD is that step-- in [a]
1612 * platforms the POST_GUARD actually does nothing since the check has
1613 * already been done. Watch out for the max being the same in both calls.
1614 *
1615 * If you actually use the snprintf/vsnprintf return value already,
1616 * you assumedly are checking its validity somehow. But you can
1617 * insert the POST_GUARD() also in that case. */
1618
1619#ifndef PERL_MY_SNPRINTF_GUARDED
1620# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf)
1621#else
1622# define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1623#endif
1624
1625#ifndef PERL_MY_VSNPRINTF_GUARDED
1626# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf)
1627#else
1628# define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len)
1629#endif
1630
a6cc4119
SP		 1631#ifdef HAS_STRLCAT
1632# define my_strlcat strlcat
1633#else
1634# define my_strlcat Perl_my_strlcat
1635#endif
1636
1637#ifdef HAS_STRLCPY
1638# define my_strlcpy strlcpy
1639#else
1640# define my_strlcpy Perl_my_strlcpy
1641#endif
1642
05f13f53 1643/*
27d4fb96 1644 The IV type is supposed to be long enough to hold any integral
1645 value or a pointer.
1646 --Andy Dougherty August 1996
1647*/
1648
a22e52b9
JH		 1649typedef IVTYPE IV;
1650typedef UVTYPE UV;
8175356b 1651
10cc9d2a 1652#if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
6b8eaf93 1653# if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
5ff3f7a4
GS		 1654# define IV_MAX INT64_MAX
1655# define IV_MIN INT64_MIN
1656# define UV_MAX UINT64_MAX
cae7ae48
JH		 1657# ifndef UINT64_MIN
1658# define UINT64_MIN 0
1659# endif
5ff3f7a4
GS		 1660# define UV_MIN UINT64_MIN
1661# else
1662# define IV_MAX PERL_QUAD_MAX
1663# define IV_MIN PERL_QUAD_MIN
1664# define UV_MAX PERL_UQUAD_MAX
1665# define UV_MIN PERL_UQUAD_MIN
1666# endif
cf2093f6
JH		 1667# define IV_IS_QUAD
1668# define UV_IS_QUAD
79072805 1669#else
8175356b 1670# if defined(INT32_MAX) && IVSIZE == 4
5ff3f7a4
GS		 1671# define IV_MAX INT32_MAX
1672# define IV_MIN INT32_MIN
716026f9
DL		 1673# ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1674# define UV_MAX UINT32_MAX
1675# else
1676# define UV_MAX 4294967295U
1677# endif
cae7ae48
JH		 1678# ifndef UINT32_MIN
1679# define UINT32_MIN 0
1680# endif
5ff3f7a4
GS		 1681# define UV_MIN UINT32_MIN
1682# else
1683# define IV_MAX PERL_LONG_MAX
1684# define IV_MIN PERL_LONG_MIN
1685# define UV_MAX PERL_ULONG_MAX
1686# define UV_MIN PERL_ULONG_MIN
1687# endif
8175356b 1688# if IVSIZE == 8
cf2093f6
JH		 1689# define IV_IS_QUAD
1690# define UV_IS_QUAD
de1c2614
JH		 1691# ifndef HAS_QUAD
1692# define HAS_QUAD
1693# endif
cf2093f6
JH		 1694# else
1695# undef IV_IS_QUAD
1696# undef UV_IS_QUAD
9ea40801 1697#if !defined(PERL_CORE) || defined(USING_MSVC6)
e25d460c
NC		 1698/* We think that removing this decade-old undef this will cause too much
1699 breakage on CPAN for too little gain. (See RT #119753)
9ea40801
SH		 1700 However, we do need HAS_QUAD in the core for use by the drand48 code,
1701 but not for Win32 VC6 because it has poor __int64 support. */
cb4b14d5 1702# undef HAS_QUAD
e25d460c 1703#endif
cf2093f6 1704# endif
79072805 1705#endif
d7d93a81 1706
6313e544
JH		 1707#define Size_t_MAX (~(Size_t)0)
1708#define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1)
9a543cee 1709
cae7ae48 1710#define IV_DIG (BIT_DIGITS(IVSIZE * 8))
22ec83e3 1711#define UV_DIG (BIT_DIGITS(UVSIZE * 8))
56431972 1712
28e5dec8 1713#ifndef NO_PERL_PRESERVE_IVUV
f5c03d33 1714#define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */
28e5dec8
JH		 1715#endif
1716
d460ef45 1717/*
26bb67e2
JH		 1718 * The macros INT2PTR and NUM2PTR are (despite their names)
1719 * bi-directional: they will convert int/float to or from pointers.
1720 * However the conversion to int/float are named explicitly:
1721 * PTR2IV, PTR2UV, PTR2NV.
1722 *
1723 * For int conversions we do not need two casts if pointers are
1724 * the same size as IV and UV. Otherwise we need an explicit
1725 * cast (PTRV) to avoid compiler warnings.
1726 */
56431972
RB		 1727#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1728# define PTRV UV
1729# define INT2PTR(any,d) (any)(d)
1730#else
d460ef45 1731# if PTRSIZE == LONGSIZE
56431972 1732# define PTRV unsigned long
e91e3b10 1733# define PTR2ul(p) (unsigned long)(p)
42718184 1734# else
56431972 1735# define PTRV unsigned
42718184 1736# endif
e91e3b10
RB		 1737#endif
1738
1739#ifndef INT2PTR
56431972 1740# define INT2PTR(any,d) (any)(PTRV)(d)
42718184 1741#endif
e91e3b10
RB		 1742
1743#ifndef PTR2ul
1744# define PTR2ul(p) INT2PTR(unsigned long,p)
1745#endif
1746
56431972
RB		 1747#define NUM2PTR(any,d) (any)(PTRV)(d)
1748#define PTR2IV(p) INT2PTR(IV,p)
1749#define PTR2UV(p) INT2PTR(UV,p)
1750#define PTR2NV(p) NUM2PTR(NV,p)
e91e3b10 1751#define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */
d460ef45 1752
8141890a
JH		 1753/* According to strict ANSI C89 one cannot freely cast between
1754 * data pointers and function (code) pointers. There are at least
1755 * two ways around this. One (used below) is to do two casts,
1756 * first the other pointer to an (unsigned) integer, and then
1757 * the integer to the other pointer. The other way would be
1758 * to use unions to "overlay" the pointers. For an example of
1759 * the latter technique, see union dirpu in struct xpvio in sv.h.
1760 * The only feasible use is probably temporarily storing
1761 * function pointers in a data pointer (such as a void pointer). */
1762
e91e3b10
RB		 1763#define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */
1764#define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */
8141890a 1765
65202027 1766#ifdef USE_LONG_DOUBLE
f3654d06
JH		 1767# if LONG_DOUBLESIZE == DOUBLESIZE
1768# define LONG_DOUBLE_EQUALS_DOUBLE
1769# undef USE_LONG_DOUBLE /* Ouch! */
65202027
DS		 1770# endif
1771#endif
1772
2d4389e4
JH		 1773#ifdef OVR_DBL_DIG
1774/* Use an overridden DBL_DIG */
1775# ifdef DBL_DIG
1776# undef DBL_DIG
1777# endif
1778# define DBL_DIG OVR_DBL_DIG
1779#else
1780/* The following is all to get DBL_DIG, in order to pick a nice
205f51d8
AS		 1781 default value for printing floating point numbers in Gconvert
1782 (see config.h). (It also has other uses, such as figuring out if
1783 a given precision of printing can be done with a double instead of
1784 a long double - Allen).
2d4389e4
JH		 1785*/
1786#ifdef I_LIMITS
1787#include <limits.h>
1788#endif
1789#ifdef I_FLOAT
1790#include <float.h>
1791#endif
1792#ifndef HAS_DBL_DIG
1793#define DBL_DIG 15 /* A guess that works lots of places */
1794#endif
1795#endif
1796
1797#ifdef OVR_LDBL_DIG
1798/* Use an overridden LDBL_DIG */
1799# ifdef LDBL_DIG
1800# undef LDBL_DIG
1801# endif
1802# define LDBL_DIG OVR_LDBL_DIG
1803#else
1804/* The following is all to get LDBL_DIG, in order to pick a nice
1805 default value for printing floating point numbers in Gconvert.
1806 (see config.h)
1807*/
68d4903c
JH		 1808# ifdef I_LIMITS
1809# include <limits.h>
1810# endif
1811# ifdef I_FLOAT
1812# include <float.h>
1813# endif
1814# ifndef HAS_LDBL_DIG
1815# if LONG_DOUBLESIZE == 10
1816# define LDBL_DIG 18 /* assume IEEE */
1817# else
1818# if LONG_DOUBLESIZE == 12
1819# define LDBL_DIG 18 /* gcc? */
1820# else
1821# if LONG_DOUBLESIZE == 16
1822# define LDBL_DIG 33 /* assume IEEE */
1823# else
1824# if LONG_DOUBLESIZE == DOUBLESIZE
1825# define LDBL_DIG DBL_DIG /* bummer */
1826# endif
1827# endif
1828# endif
1829# endif
1830# endif
2d4389e4
JH		 1831#endif
1832
20f6aaab
AS		 1833/*
1834 * This is for making sure we have a good DBL_MAX value, if possible,
1835 * either for usage as NV_MAX or for usage in figuring out if we can
1836 * fit a given long double into a double, if bug-fixing makes it
1837 * necessary to do so. - Allen <allens@cpan.org>
1838 */
1839
205f51d8
AS		 1840#ifdef I_LIMITS
1841# include <limits.h>
20f6aaab
AS		 1842#endif
1843
205f51d8
AS		 1844#ifdef I_VALUES
1845# if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1846# include <values.h>
1847# if defined(MAXDOUBLE) && !defined(DBL_MAX)
1848# define DBL_MAX MAXDOUBLE
1849# endif
1850# if defined(MINDOUBLE) && !defined(DBL_MIN)
1851# define DBL_MIN MINDOUBLE
1852# endif
1853# endif
1854#endif /* defined(I_VALUES) */
1855
a22e52b9 1856typedef NVTYPE NV;
8175356b 1857
792d8dab
JH		 1858#ifdef I_IEEEFP
1859# include <ieeefp.h>
1860#endif
923fc586 1861
c32c3de1
JH		 1862#ifdef USING_MSVC6
1863/* VC6 has broken NaN semantics: NaN == NaN returns true instead of false,
1864 * and for example NaN < IV_MIN. */
bcd8bfa9
JH		 1865# define NAN_COMPARE_BROKEN
1866#endif
1867#if defined(__DECC) && defined(__osf__)
1868/* Also Tru64 cc has broken NaN comparisons. */
1869# define NAN_COMPARE_BROKEN
c32c3de1
JH		 1870#endif
1871
65202027 1872#ifdef USE_LONG_DOUBLE
923fc586
JH		 1873# ifdef I_SUNMATH
1874# include <sunmath.h>
1875# endif
84e6cb05 1876# if defined(LDBL_DIG)
05b4a618
JH		 1877# define NV_DIG LDBL_DIG
1878# ifdef LDBL_MANT_DIG
1879# define NV_MANT_DIG LDBL_MANT_DIG
1880# endif
1881# ifdef LDBL_MIN
1882# define NV_MIN LDBL_MIN
1883# endif
1884# ifdef LDBL_MAX
1885# define NV_MAX LDBL_MAX
1886# endif
1887# ifdef LDBL_MIN_EXP
1888# define NV_MIN_EXP LDBL_MIN_EXP
1889# endif
1890# ifdef LDBL_MAX_EXP
1891# define NV_MAX_EXP LDBL_MAX_EXP
1892# endif
1893# ifdef LDBL_MIN_10_EXP
1894# define NV_MIN_10_EXP LDBL_MIN_10_EXP
1895# endif
1896# ifdef LDBL_MAX_10_EXP
1897# define NV_MAX_10_EXP LDBL_MAX_10_EXP
1898# endif
1899# ifdef LDBL_EPSILON
1900# define NV_EPSILON LDBL_EPSILON
1901# endif
1902# ifdef LDBL_MAX
1903# define NV_MAX LDBL_MAX
20f6aaab 1904/* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
f4a14a62 1905# else
05b4a618
JH		 1906# ifdef HUGE_VALL
1907# define NV_MAX HUGE_VALL
f4a14a62
JH		 1908# endif
1909# endif
1910# endif
84e6cb05 1911# if defined(HAS_SQRTL)
8a00eddc
JH		 1912# define Perl_acos acosl
1913# define Perl_asin asinl
1914# define Perl_atan atanl
940e3d56
JH		 1915# define Perl_atan2 atan2l
1916# define Perl_ceil ceill
1917# define Perl_cos cosl
8a00eddc 1918# define Perl_cosh coshl
940e3d56 1919# define Perl_exp expl
55da5e5b 1920/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 1921# define Perl_floor floorl
1922# define Perl_fmod fmodl
1923# define Perl_log logl
8a00eddc 1924# define Perl_log10 log10l
940e3d56
JH		 1925# define Perl_pow powl
1926# define Perl_sin sinl
8a00eddc 1927# define Perl_sinh sinhl
940e3d56 1928# define Perl_sqrt sqrtl
8a00eddc
JH		 1929# define Perl_tan tanl
1930# define Perl_tanh tanhl
68d4903c 1931# endif
a3540c92 1932/* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
05b4a618
JH		 1933# ifndef Perl_modf
1934# ifdef HAS_MODFL
1935# define Perl_modf(x,y) modfl(x,y)
51997bc3
NC		 1936/* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1937 prototype in <math.h> */
05b4a618 1938# ifndef HAS_MODFL_PROTO
a221a8a5 1939EXTERN_C long double modfl(long double, long double *);
05b4a618
JH		 1940# endif
1941# elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL)
55954f19 1942 extern long double Perl_my_modfl(long double x, long double *ip);
03476e8e 1943# define Perl_modf(x,y) Perl_my_modfl(x,y)
05b4a618 1944# endif
a3540c92 1945# endif
05b4a618
JH		 1946# ifndef Perl_frexp
1947# ifdef HAS_FREXPL
1948# define Perl_frexp(x,y) frexpl(x,y)
1949# else
1950# if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1951extern long double Perl_my_frexpl(long double x, int *e);
1952# define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1953# endif
03476e8e 1954# endif
a3540c92 1955# endif
05b4a618
JH		 1956# ifndef Perl_ldexp
1957# ifdef HAS_LDEXPL
1958# define Perl_ldexp(x, y) ldexpl(x,y)
1959# else
1960# if defined(HAS_SCALBNL) && FLT_RADIX == 2
1961# define Perl_ldexp(x,y) scalbnl(x,y)
1962# endif
98181445
JH		 1963# endif
1964# endif
38dbb4c5 1965# ifndef Perl_isnan
e4c957f4 1966# if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99))
758a5d79 1967# define Perl_isnan(x) isnanl(x)
a1115378
JH		 1968# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1969# define Perl_isnan(x) isnan(x)
758a5d79
JH		 1970# endif
1971# endif
1972# ifndef Perl_isinf
e4c957f4 1973# if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99))
87190886 1974# define Perl_isinf(x) isinfl(x)
a1115378
JH		 1975# elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */
1976# define Perl_isinf(x) isinf(x)
bcd8bfa9 1977# elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 1978# define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX)
a3540c92
JH		 1979# endif
1980# endif
e38461cc
JH		 1981# ifndef Perl_isfinite
1982# define Perl_isfinite(x) Perl_isfinitel(x)
1983# endif
84e6cb05
JH		 1984#elif defined(USE_QUADMATH) && defined(I_QUADMATH)
1985# include <quadmath.h>
1986# define NV_DIG FLT128_DIG
1987# define NV_MANT_DIG FLT128_MANT_DIG
1988# define NV_MIN FLT128_MIN
1989# define NV_MAX FLT128_MAX
1990# define NV_MIN_EXP FLT128_MIN_EXP
1991# define NV_MAX_EXP FLT128_MAX_EXP
1992# define NV_EPSILON FLT128_EPSILON
1993# define NV_MIN_10_EXP FLT128_MIN_10_EXP
1994# define NV_MAX_10_EXP FLT128_MAX_10_EXP
84e6cb05
JH		 1995# define Perl_acos acosq
1996# define Perl_asin asinq
1997# define Perl_atan atanq
1998# define Perl_atan2 atan2q
1999# define Perl_ceil ceilq
2000# define Perl_cos cosq
2001# define Perl_cosh coshq
2002# define Perl_exp expq
2003/* no Perl_fabs, but there's PERL_ABS */
2004# define Perl_floor floorq
2005# define Perl_fmod fmodq
2006# define Perl_log logq
2007# define Perl_log10 log10q
2008# define Perl_pow powq
2009# define Perl_sin sinq
2010# define Perl_sinh sinhq
2011# define Perl_sqrt sqrtq
2012# define Perl_tan tanq
2013# define Perl_tanh tanhq
2014# define Perl_modf(x,y) modfq(x,y)
2015# define Perl_frexp(x,y) frexpq(x,y)
2016# define Perl_ldexp(x, y) ldexpq(x,y)
2017# define Perl_isinf(x) isinfq(x)
2018# define Perl_isnan(x) isnanq(x)
2019# define Perl_isfinite(x) !(isnanq(x) || isinfq(x))
65202027 2020#else
2d4389e4 2021# define NV_DIG DBL_DIG
d6c14000
JH		 2022# ifdef DBL_MANT_DIG
2023# define NV_MANT_DIG DBL_MANT_DIG
2024# endif
06fc1729
JH		 2025# ifdef DBL_MIN
2026# define NV_MIN DBL_MIN
2027# endif
2028# ifdef DBL_MAX
2029# define NV_MAX DBL_MAX
2030# endif
40bca5ae
JH		 2031# ifdef DBL_MIN_EXP
2032# define NV_MIN_EXP DBL_MIN_EXP
2033# endif
2034# ifdef DBL_MAX_EXP
2035# define NV_MAX_EXP DBL_MAX_EXP
2036# endif
06fc1729
JH		 2037# ifdef DBL_MIN_10_EXP
2038# define NV_MIN_10_EXP DBL_MIN_10_EXP
2039# endif
2040# ifdef DBL_MAX_10_EXP
2041# define NV_MAX_10_EXP DBL_MAX_10_EXP
2042# endif
2043# ifdef DBL_EPSILON
2044# define NV_EPSILON DBL_EPSILON
2045# endif
205f51d8 2046# ifdef DBL_MAX /* XXX Does DBL_MAX imply having DBL_MIN? */
f4a14a62
JH		 2047# define NV_MAX DBL_MAX
2048# define NV_MIN DBL_MIN
2049# else
2050# ifdef HUGE_VAL
2051# define NV_MAX HUGE_VAL
2052# endif
2053# endif
940e3d56 2054
55da5e5b 2055/* These math interfaces are C89. */
8a00eddc
JH		 2056# define Perl_acos acos
2057# define Perl_asin asin
2058# define Perl_atan atan
940e3d56
JH		 2059# define Perl_atan2 atan2
2060# define Perl_ceil ceil
2061# define Perl_cos cos
8a00eddc 2062# define Perl_cosh cosh
940e3d56 2063# define Perl_exp exp
55da5e5b 2064/* no Perl_fabs, but there's PERL_ABS */
940e3d56
JH		 2065# define Perl_floor floor
2066# define Perl_fmod fmod
2067# define Perl_log log
8a00eddc 2068# define Perl_log10 log10
940e3d56
JH		 2069# define Perl_pow pow
2070# define Perl_sin sin
8a00eddc 2071# define Perl_sinh sinh
940e3d56 2072# define Perl_sqrt sqrt
8a00eddc
JH		 2073# define Perl_tan tan
2074# define Perl_tanh tanh
940e3d56
JH		 2075
2076# define Perl_modf(x,y) modf(x,y)
2077# define Perl_frexp(x,y) frexp(x,y)
2078# define Perl_ldexp(x,y) ldexp(x,y)
2079
1a322af2
JH		 2080# ifndef Perl_isnan
2081# ifdef HAS_ISNAN
2082# define Perl_isnan(x) isnan(x)
2083# endif
2084# endif
2085# ifndef Perl_isinf
2086# if defined(HAS_ISINF)
2087# define Perl_isinf(x) isinf(x)
bcd8bfa9 2088# elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN)
efcbf317 2089# define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX)
1a322af2
JH		 2090# endif
2091# endif
2092# ifndef Perl_isfinite
2093# ifdef HAS_ISFINITE
2094# define Perl_isfinite(x) isfinite(x)
2095# elif defined(HAS_FINITE)
2096# define Perl_isfinite(x) finite(x)
2097# endif
2098# endif
758a5d79
JH		 2099#endif
2100
30404d48
JH		 2101/* fpclassify(): C99. It is supposed to be a macro that switches on
2102* the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/
2103#if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2104# include <math.h>
25c46df8
JH		 2105# if defined(FP_INFINITE) && defined(FP_NAN)
2106# define Perl_fp_class(x) fpclassify(x)
2107# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2108# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2109# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2110# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2111# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2112# elif defined(FP_PLUS_INF) && defined(FP_QNAN)
2113/* Some versions of HP-UX (10.20) have (only) fpclassify() but which is
2114 * actually not the C99 fpclassify, with its own set of return defines. */
2115# define Perl_fp_class(x) fpclassify(x)
2116# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2117# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
82947af8 2118# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
25c46df8
JH		 2119# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2120# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
1ae51000 2121# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
25c46df8
JH		 2122# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2123# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2124# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2125# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2126# else
2127# undef Perl_fp_class /* Unknown set of defines */
2128# endif
30404d48
JH		 2129#endif
2130
25c46df8
JH		 2131/* fp_classify(): Legacy: VMS, maybe Unicos? The values, however,
2132 * are identical to the C99 fpclassify(). */
2133#if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY)
2134# include <math.h>
558f3e66
CB		 2135# ifdef __VMS
2136 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */
2137# include <fp.h>
56610b8f
CB		 2138 /* oh, and the isnormal macro has a typo in it! */
2139# undef isnormal
2140# define isnormal(x) Perl_fp_class_norm(x)
558f3e66 2141# endif
25c46df8
JH		 2142# if defined(FP_INFINITE) && defined(FP_NAN)
2143# define Perl_fp_class(x) fp_classify(x)
2144# define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE)
2145# define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN)
2146# define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL)
2147# define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL)
2148# define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO)
2149# else
2150# undef Perl_fp_class /* Unknown set of defines */
2151# endif
f279e099 2152#endif
205f51d8 2153
30404d48
JH		 2154/* Feel free to check with me for the SGI manpages, SGI testing,
2155 * etcetera, if you want to try getting this to work with IRIX.
2156 *
2157 * - Allen <allens@cpan.org> */
2158
2159/* fpclass(): SysV, at least Solaris and some versions of IRIX. */
758a5d79 2160#if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
25c46df8
JH		 2161/* Solaris and IRIX have fpclass/fpclassl, but they are using
2162 * an enum typedef, not cpp symbols, and Configure doesn't detect that.
2163 * Define some symbols also as cpp symbols so we can detect them. */
033a6f7a 2164# if defined(__sun) || defined(__sgi) /* XXX Configure test instead */
25c46df8
JH		 2165# define FP_PINF FP_PINF
2166# define FP_QNAN FP_QNAN
2167# endif
f279e099 2168# include <math.h>
758a5d79
JH		 2169# ifdef I_IEEFP
2170# include <ieeefp.h>
2171# endif
2172# ifdef I_FP
2173# include <fp.h>
2174# endif
2175# if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
f279e099 2176# define Perl_fp_class(x) fpclassl(x)
758a5d79 2177# else
f279e099
JH		 2178# define Perl_fp_class(x) fpclass(x)
2179# endif
25c46df8 2180# if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN)
f279e099
JH		 2181# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN)
2182# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN)
2183# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF)
2184# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF)
2185# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM)
2186# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM)
2187# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM)
2188# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM)
2189# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO)
2190# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO)
25c46df8 2191# elif defined(FP_PINF) && defined(FP_QNAN)
f279e099
JH		 2192# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2193# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2194# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF)
2195# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF)
2196# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM)
2197# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM)
2198# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM)
2199# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM)
2200# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO)
2201# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO)
25c46df8
JH		 2202# else
2203# undef Perl_fp_class /* Unknown set of defines */
758a5d79 2204# endif
758a5d79
JH		 2205#endif
2206
30404d48
JH		 2207/* fp_class(): Legacy: at least Tru64, some versions of IRIX. */
2208#if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL))
758a5d79
JH		 2209# include <math.h>
2210# if !defined(FP_SNAN) && defined(I_FP_CLASS)
2211# include <fp_class.h>
2212# endif
25c46df8 2213# if defined(FP_POS_INF) && defined(FP_QNAN)
033a6f7a 2214# ifdef __sgi /* XXX Configure test instead */
25c46df8
JH		 2215# ifdef USE_LONG_DOUBLE
2216# define Perl_fp_class(x) fp_class_l(x)
2217# else
2218# define Perl_fp_class(x) fp_class_d(x)
2219# endif
f279e099 2220# else
25c46df8
JH		 2221# if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL)
2222# define Perl_fp_class(x) fp_classl(x)
2223# else
2224# define Perl_fp_class(x) fp_class(x)
2225# endif
f279e099 2226# endif
25c46df8
JH		 2227# if defined(FP_POS_INF) && defined(FP_QNAN)
2228# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN)
2229# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN)
2230# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF)
2231# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF)
2232# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM)
2233# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM)
2234# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM)
2235# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM)
2236# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO)
2237# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO)
30404d48 2238# else
25c46df8 2239# undef Perl_fp_class /* Unknown set of defines */
30404d48 2240# endif
f279e099 2241# endif
30404d48
JH		 2242#endif
2243
052758ae 2244/* class(), _class(): Legacy: AIX. */
758a5d79
JH		 2245#if !defined(Perl_fp_class) && defined(HAS_CLASS)
2246# include <math.h>
25c46df8
JH		 2247# if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF)
2248# ifndef _cplusplus
2249# define Perl_fp_class(x) class(x)
2250# else
2251# define Perl_fp_class(x) _class(x)
2252# endif
2253# if defined(FP_PLUS_INF) && defined(FP_NANQ)
2254# define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS)
2255# define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ)
2256# define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF)
2257# define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF)
2258# define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM)
2259# define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM)
2260# define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM)
2261# define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM)
2262# define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO)
2263# define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO)
2264# else
2265# undef Perl_fp_class /* Unknown set of defines */
2266# endif
758a5d79 2267# endif
30404d48
JH		 2268#endif
2269
2270/* Win32: _fpclass(), _isnan(), _finite(). */
796ea9ea
JH		 2271#ifdef WIN32
2272# ifndef Perl_isnan
2273# define Perl_isnan(x) _isnan(x)
2274# endif
2275# ifndef Perl_isfinite
2276# define Perl_isfinite(x) _finite(x)
2277# endif
2278# ifndef Perl_fp_class_snan
25c46df8
JH		 2279/* No simple way to #define Perl_fp_class because _fpclass()
2280 * returns a set of bits. */
796ea9ea
JH		 2281# define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN)
2282# define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN)
82947af8 2283# define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN))
796ea9ea
JH		 2284# define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF))
2285# define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF))
2286# define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF))
2287# define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN)
2288# define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN)
2289# define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN))
2290# define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND)
2291# define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD)
2292# define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD))
2293# define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ)
2294# define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ)
2295# define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ))
2296# endif
f279e099
JH		 2297#endif
2298
2299#if !defined(Perl_fp_class_inf) && \
2300 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf)
2301# define Perl_fp_class_inf(x) \
2302 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x))
2303#endif
2304
2305#if !defined(Perl_fp_class_nan) && \
2306 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan)
2307# define Perl_fp_class_nan(x) \
2308 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x))
2309#endif
2310
2311#if !defined(Perl_fp_class_zero) && \
2312 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero)
2313# define Perl_fp_class_zero(x) \
2314 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x))
2315#endif
2316
2317#if !defined(Perl_fp_class_norm) && \
2318 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm)
2319# define Perl_fp_class_norm(x) \
2320 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x))
2321#endif
2322
2323#if !defined(Perl_fp_class_denorm) && \
2324 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm)
2325# define Perl_fp_class_denorm(x) \
2326 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x))
796ea9ea 2327#endif
758a5d79 2328
1a322af2
JH		 2329#ifdef UNDER_CE
2330int isnan(double d);
2331#endif
2332
758a5d79 2333#ifndef Perl_isnan
1a322af2
JH		 2334# ifdef Perl_fp_class_nan
2335# define Perl_isnan(x) Perl_fp_class_nan(x)
758a5d79 2336# else
1a322af2
JH		 2337# ifdef HAS_UNORDERED
2338# define Perl_isnan(x) unordered((x), 0.0)
758a5d79 2339# else
1a322af2 2340# define Perl_isnan(x) ((x)!=(x))
758a5d79
JH		 2341# endif
2342# endif
2343#endif
2344
1a322af2
JH		 2345#ifndef Perl_isinf
2346# ifdef Perl_fp_class_inf
2347# define Perl_isinf(x) Perl_fp_class_inf(x)
2348# endif
ca6c63e1
JH		 2349#endif
2350
758a5d79 2351#ifndef Perl_isfinite
25c46df8 2352# if defined(HAS_ISFINITE) && !defined(isfinite)
c496ca58 2353# define Perl_isfinite(x) isfinite((double)(x))
4efd38a4 2354# elif defined(HAS_FINITE)
c496ca58 2355# define Perl_isfinite(x) finite((double)(x))
4efd38a4
JH		 2356# elif defined(Perl_fp_class_finite)
2357# define Perl_isfinite(x) Perl_fp_class_finite(x)
758a5d79 2358# else
c496ca58
JH		 2359/* For the infinities the multiplication returns nan,
2360 * for the nan the multiplication also returns nan,
2361 * for everything else (that is, finite) zero should be returned. */
4efd38a4 2362# define Perl_isfinite(x) (((x) * 0) == 0)
a3540c92 2363# endif
65202027
DS		 2364#endif
2365
25c46df8
JH		 2366#ifndef Perl_isinf
2367# if defined(Perl_isfinite) && defined(Perl_isnan)
2368# define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x))
2369# endif
2370#endif
2371
d3685250
JH		 2372/* We need Perl_isfinitel (ends with ell) (if available) even when
2373 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags)
2374 * needs that. */
2375#if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel)
2376/* If isfinite() is a macro and looks like we have C99,
2377 * we assume it's the type-aware C99 isfinite(). */
c06e9e3e 2378# if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99)
d3685250
JH		 2379# define Perl_isfinitel(x) isfinite(x)
2380# elif defined(HAS_ISFINITEL)
2381# define Perl_isfinitel(x) isfinitel(x)
2382# elif defined(HAS_FINITEL)
2383# define Perl_isfinitel(x) finitel(x)
2384# elif defined(HAS_INFL) && defined(HAS_NANL)
2385# define Perl_isfinitel(x) !(isinfl(x)||isnanl(x))
16334e6e 2386# else
99bf9e32 2387# define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */
d3685250
JH		 2388# endif
2389#endif
2390
a36244b7
JH		 2391/* The default is to use Perl's own atof() implementation (in numeric.c).
2392 * Usually that is the one to use but for some platforms (e.g. UNICOS)
2393 * it is however best to use the native implementation of atof.
2394 * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2395 * Some good tests to try out with either setting are t/base/num.t,
205f51d8
AS		 2396 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2397 * you may need to be using a different function than atof! */
a36244b7
JH		 2398
2399#ifndef USE_PERL_ATOF
2400# ifndef _UNICOS
2401# define USE_PERL_ATOF
2402# endif
2403#else
2404# if USE_PERL_ATOF == 0
2405# undef USE_PERL_ATOF
2406# endif
2407#endif
2408
2409#ifdef USE_PERL_ATOF
2410# define Perl_atof(s) Perl_my_atof(s)
2411# define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2412#else
2413# define Perl_atof(s) (NV)atof(s)
2414# define Perl_atof2(s, n) ((n) = atof(s))
2415#endif
cf2093f6 2416
d460ef45 2417/* Previously these definitions used hardcoded figures.
760ac839
LW		 2418 * It is hoped these formula are more portable, although
2419 * no data one way or another is presently known to me.
2420 * The "PERL_" names are used because these calculated constants
2421 * do not meet the ANSI requirements for LONG_MAX, etc., which
2422 * need to be constants acceptable to #if - kja
2423 * define PERL_LONG_MAX 2147483647L
2424 * define PERL_LONG_MIN (-LONG_MAX - 1)
2425 * define PERL ULONG_MAX 4294967295L
2426 */
2427
2428#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
2429# include <limits.h>
760ac839 2430#endif
205f51d8 2431/* Included values.h above if necessary; still including limits.h down here,
486ec47a 2432 * despite doing above, because math.h might have overridden... XXX - Allen */
760ac839 2433
99abf803 2434/*
2435 * Try to figure out max and min values for the integral types. THE CORRECT
2436 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
2437 * following hacks are used if neither limits.h or values.h provide them:
2438 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2439 * for types < int: (unsigned TYPE)~(unsigned)0
2440 * The argument to ~ must be unsigned so that later signed->unsigned
2441 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2442 * and it must not be smaller than int because ~ does integral promotion.
2443 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2444 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2445 * The latter is a hack which happens to work on some machines but
2446 * does *not* catch any random system, or things like integer types
2447 * with NaN if that is possible.
2448 *
2449 * All of the types are explicitly cast to prevent accidental loss of
2450 * numeric range, and in the hope that they will be less likely to confuse
2451 * over-eager optimizers.
2452 *
2453 */
27d4fb96 2454
99abf803 2455#define PERL_UCHAR_MIN ((unsigned char)0)
2456
2457#ifdef UCHAR_MAX
2458# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 2459#else
99abf803 2460# ifdef MAXUCHAR
2461# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 2462# else
99abf803 2463# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 2464# endif
2465#endif
d460ef45 2466
99abf803 2467/*
2468 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2469 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2470 * depending on local options. Until Configure detects this (or at least
2471 * detects whether the "signed" keyword is available) the CHAR ranges
2472 * will not be included. UCHAR functions normally.
2473 * - kja
2474 */
27d4fb96 2475
99abf803 2476#define PERL_USHORT_MIN ((unsigned short)0)
2477
2478#ifdef USHORT_MAX
2479# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 2480#else
99abf803 2481# ifdef MAXUSHORT
2482# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 2483# else
ef2f54b0
CB		 2484# ifdef USHRT_MAX
2485# define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2486# else
2487# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
2488# endif
27d4fb96 2489# endif
2490#endif
2491
27d4fb96 2492#ifdef SHORT_MAX
99abf803 2493# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 2494#else
2495# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 2496# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 2497# else
ef2f54b0
CB		 2498# ifdef SHRT_MAX
2499# define PERL_SHORT_MAX ((short)SHRT_MAX)
2500# else
2501# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
2502# endif
27d4fb96 2503# endif
2504#endif
2505
2506#ifdef SHORT_MIN
99abf803 2507# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 2508#else
2509# ifdef MINSHORT
99abf803 2510# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 2511# else
ef2f54b0
CB		 2512# ifdef SHRT_MIN
2513# define PERL_SHORT_MIN ((short)SHRT_MIN)
2514# else
2515# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
2516# endif
27d4fb96 2517# endif
2518#endif
2519
99abf803 2520#ifdef UINT_MAX
2521# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 2522#else
99abf803 2523# ifdef MAXUINT
2524# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 2525# else
99abf803 2526# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 2527# endif
2528#endif
2529
99abf803 2530#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 2531
2532#ifdef INT_MAX
99abf803 2533# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 2534#else
2535# ifdef MAXINT /* Often used in <values.h> */
99abf803 2536# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 2537# else
99abf803 2538# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 2539# endif
2540#endif
2541
2542#ifdef INT_MIN
99abf803 2543# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 2544#else
2545# ifdef MININT
99abf803 2546# define PERL_INT_MIN ((int)MININT)
27d4fb96 2547# else
2548# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
2549# endif
2550#endif
2551
99abf803 2552#ifdef ULONG_MAX
2553# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 2554#else
99abf803 2555# ifdef MAXULONG
2556# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 2557# else
99abf803 2558# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 2559# endif
2560#endif
2561
99abf803 2562#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 2563
760ac839 2564#ifdef LONG_MAX
99abf803 2565# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 2566#else
2567# ifdef MAXLONG /* Often used in <values.h> */
99abf803 2568# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 2569# else
99abf803 2570# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 2571# endif
2572#endif
2573
2574#ifdef LONG_MIN
99abf803 2575# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 2576#else
2577# ifdef MINLONG
99abf803 2578# define PERL_LONG_MIN ((long)MINLONG)
760ac839 2579# else
27d4fb96 2580# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 2581# endif
2582#endif
2583
d7d93a81 2584#ifdef UV_IS_QUAD
99abf803 2585
99abf803 2586# define PERL_UQUAD_MAX (~(UV)0)
f1c3b19a 2587# define PERL_UQUAD_MIN ((UV)0)
99abf803 2588# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
a6e633de 2589# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 2590
79072805
LW		 2591#endif
2592
ee0007ab 2593typedef MEM_SIZE STRLEN;
450a55e4 2594
79072805
LW		 2595typedef struct op OP;
2596typedef struct cop COP;
2597typedef struct unop UNOP;
2f7c6295 2598typedef struct unop_aux UNOP_AUX;
79072805
LW		 2599typedef struct binop BINOP;
2600typedef struct listop LISTOP;
2601typedef struct logop LOGOP;
79072805
LW		 2602typedef struct pmop PMOP;
2603typedef struct svop SVOP;
7934575e 2604typedef struct padop PADOP;
79072805 2605typedef struct pvop PVOP;
79072805 2606typedef struct loop LOOP;
b46e009d 2607typedef struct methop METHOP;
79072805 2608
7aef8e5b 2609#ifdef PERL_CORE
8be227ab
FC		 2610typedef struct opslab OPSLAB;
2611typedef struct opslot OPSLOT;
2612#endif
2613
52db365a 2614typedef struct block_hooks BHK;
1830b3d9 2615typedef struct custom_op XOP;
52db365a 2616
cd1541b2
NC		 2617typedef struct interpreter PerlInterpreter;
2618
d2b3f365 2619/* SGI's <sys/sema.h> has struct sv */
cc3315ba 2620#if defined(__sgi)
d2b3f365 2621# define STRUCT_SV perl_sv
b8d3c5db
JH		 2622#else
2623# define STRUCT_SV sv
2624#endif
2625typedef struct STRUCT_SV SV;
79072805
LW		 2626typedef struct av AV;
2627typedef struct hv HV;
2628typedef struct cv CV;
d2f13c59 2629typedef struct p5rx REGEXP;
79072805 2630typedef struct gp GP;
0c30d9ec 2631typedef struct gv GV;
8990e307 2632typedef struct io IO;
c09156bb 2633typedef struct context PERL_CONTEXT;
79072805
LW		 2634typedef struct block BLOCK;
2635
2636typedef struct magic MAGIC;
2637typedef struct xpv XPV;
2638typedef struct xpviv XPVIV;
ff68c719 2639typedef struct xpvuv XPVUV;
79072805
LW		 2640typedef struct xpvnv XPVNV;
2641typedef struct xpvmg XPVMG;
2642typedef struct xpvlv XPVLV;
d361b004 2643typedef struct xpvinvlist XINVLIST;
79072805
LW		 2644typedef struct xpvav XPVAV;
2645typedef struct xpvhv XPVHV;
2646typedef struct xpvgv XPVGV;
2647typedef struct xpvcv XPVCV;
2648typedef struct xpvbm XPVBM;
2649typedef struct xpvfm XPVFM;
8990e307 2650typedef struct xpvio XPVIO;
79072805
LW		 2651typedef struct mgvtbl MGVTBL;
2652typedef union any ANY;
5f7fde29
GS		 2653typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2654typedef struct ptr_tbl PTR_TBL_t;
8cf8f3d1
NIS		 2655typedef struct clone_params CLONE_PARAMS;
2656
0f94cb1f 2657/* a pad is currently just an AV; but that might change,
7261499d
FC		 2658 * so hide the type. */
2659typedef struct padlist PADLIST;
67634234 2660typedef AV PAD;
9b7476d7 2661typedef struct padnamelist PADNAMELIST;
0f94cb1f 2662typedef struct padname PADNAME;
67634234 2663
93c10d60
FC		 2664/* enable PERL_COPY_ON_WRITE by default */
2665#if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW)
2666# define PERL_COPY_ON_WRITE
13b0f67d 2667#endif
07d01d6e 2668
93c10d60 2669#ifdef PERL_COPY_ON_WRITE
db2c6cb3 2670# define PERL_ANY_COW
9f351b45
DM		 2671#else
2672# define PERL_SAWAMPERSAND
db2c6cb3
FC		 2673#endif
2674
40653c20
FC		 2675#if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS)
2676# error PERL_DEBUG_READONLY_OPS only works with ithreads
2677#endif
2678
378cc40b 2679#include "handy.h"
64935bc6 2680#include "charclass_invlists.h"
a0d0e21e 2681
6b8eaf93 2682#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
6b8eaf93
JH		 2683# if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2684# define USE_64_BIT_RAWIO /* implicit */
2685# endif
4564133c
JH		 2686#endif
2687
6b8eaf93
JH		 2688/* Notice the use of HAS_FSEEKO: now we are obligated to always use
2689 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself,
2690 * however, because operating systems like to do that themself. */
2691#ifndef FSEEKSIZE
2692# ifdef HAS_FSEEKO
2693# define FSEEKSIZE LSEEKSIZE
2694# else
2695# define FSEEKSIZE LONGSIZE
d460ef45 2696# endif
6b8eaf93
JH		 2697#endif
2698
2699#if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
6b8eaf93
JH		 2700# if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2701# define USE_64_BIT_STDIO /* implicit */
2702# endif
2703#endif
4564133c 2704
09458382 2705#ifdef USE_64_BIT_RAWIO
d9b3e12d
JH		 2706# ifdef HAS_OFF64_T
2707# undef Off_t
2708# define Off_t off64_t
2709# undef LSEEKSIZE
2710# define LSEEKSIZE 8
5ff3f7a4 2711# endif
d9b3e12d
JH		 2712/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2713 * will trigger defines like the ones below. Some 64-bit environments,
09458382 2714 * however, do not. Therefore we have to explicitly mix and match. */
d9b3e12d
JH		 2715# if defined(USE_OPEN64)
2716# define open open64
5ff3f7a4 2717# endif
d9b3e12d
JH		 2718# if defined(USE_LSEEK64)
2719# define lseek lseek64
6b8eaf93
JH		 2720# else
2721# if defined(USE_LLSEEK)
2722# define lseek llseek
2723# endif
d9b3e12d
JH		 2724# endif
2725# if defined(USE_STAT64)
2726# define stat stat64
2727# endif
2728# if defined(USE_FSTAT64)
2729# define fstat fstat64
2730# endif
2731# if defined(USE_LSTAT64)
2732# define lstat lstat64
2733# endif
2734# if defined(USE_FLOCK64)
2735# define flock flock64
2736# endif
2737# if defined(USE_LOCKF64)
2738# define lockf lockf64
2739# endif
2740# if defined(USE_FCNTL64)
2741# define fcntl fcntl64
2742# endif
2743# if defined(USE_TRUNCATE64)
2744# define truncate truncate64
2745# endif
2746# if defined(USE_FTRUNCATE64)
2747# define ftruncate ftruncate64
2748# endif
2749#endif
2750
2751#ifdef USE_64_BIT_STDIO
2752# ifdef HAS_FPOS64_T
2753# undef Fpos_t
2754# define Fpos_t fpos64_t
2755# endif
2756/* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2757 * will trigger defines like the ones below. Some 64-bit environments,
2758 * however, do not. */
2759# if defined(USE_FOPEN64)
2760# define fopen fopen64
2761# endif
2762# if defined(USE_FSEEK64)
6b8eaf93 2763# define fseek fseek64 /* don't do fseeko here, see perlio.c */
d9b3e12d
JH		 2764# endif
2765# if defined(USE_FTELL64)
6b8eaf93 2766# define ftell ftell64 /* don't do ftello here, see perlio.c */
d9b3e12d
JH		 2767# endif
2768# if defined(USE_FSETPOS64)
2769# define fsetpos fsetpos64
2770# endif
2771# if defined(USE_FGETPOS64)
2772# define fgetpos fgetpos64
2773# endif
2774# if defined(USE_TMPFILE64)
2775# define tmpfile tmpfile64
2776# endif
2777# if defined(USE_FREOPEN64)
2778# define freopen freopen64
5ff3f7a4
GS		 2779# endif
2780#endif
2781
e37778c2 2782#if defined(OS2)
2c2d71f5
JH		 2783# include "iperlsys.h"
2784#endif
2785
748a9306 2786#ifdef DOSISH
19848b3f
JH		 2787# if defined(OS2)
2788# include "os2ish.h"
2789# else
2790# include "dosish.h"
2791# endif
009819bb 2792#elif defined(VMS)
748a9306 2793# include "vmsish.h"
009819bb 2794#elif defined(PLAN9)
19848b3f 2795# include "./plan9/plan9ish.h"
009819bb 2796#elif defined(__VOS__)
196918b0
PG		 2797# ifdef __GNUC__
2798# include "./vos/vosish.h"
2799# else
2800# include "vos/vosish.h"
2801# endif
009819bb 2802#elif defined(__SYMBIAN32__)
27da23d5 2803# include "symbian/symbianish.h"
009819bb 2804#elif defined(__HAIKU__)
df00ff3b 2805# include "haiku/haikuish.h"
009819bb 2806#else
19848b3f 2807# include "unixish.h"
13b6e58c
JH		 2808#endif
2809
ea34f6bd 2810#ifdef __amigaos4__
3c0208ad
AB		 2811# include "amigaos.h"
2812# undef FD_CLOEXEC /* a lie in AmigaOS */
2813#endif
2814
2946a158
JH		 2815/* NSIG logic from Configure --> */
2816/* Strange style to avoid deeply-nested #if/#else/#endif */
2817#ifndef NSIG
2818# ifdef _NSIG
2819# define NSIG (_NSIG)
2820# endif
2821#endif
2822
2823#ifndef NSIG
2824# ifdef SIGMAX
2825# define NSIG (SIGMAX+1)
2826# endif
2827#endif
2828
2829#ifndef NSIG
2830# ifdef SIG_MAX
2831# define NSIG (SIG_MAX+1)
2832# endif
2833#endif
2834
2835#ifndef NSIG
2836# ifdef _SIG_MAX
2837# define NSIG (_SIG_MAX+1)
2838# endif
2839#endif
2840
2841#ifndef NSIG
2842# ifdef MAXSIG
2843# define NSIG (MAXSIG+1)
2844# endif
2845#endif
2846
2847#ifndef NSIG
2848# ifdef MAX_SIG
2849# define NSIG (MAX_SIG+1)
2850# endif
2851#endif
2852
2853#ifndef NSIG
2854# ifdef SIGARRAYSIZE
2855# define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2856# endif
2857#endif
2858
2859#ifndef NSIG
2860# ifdef _sys_nsig
2861# define NSIG (_sys_nsig) /* Solaris 2.5 */
2862# endif
2863#endif
2864
2865/* Default to some arbitrary number that's big enough to get most
2866 of the common signals.
2867*/
2868#ifndef NSIG
2869# define NSIG 50
2870#endif
2871/* <-- NSIG logic from Configure */
2872
13b6e58c
JH		 2873#ifndef NO_ENVIRON_ARRAY
2874# define USE_ENVIRON_ARRAY
2875#endif
32f822de 2876
c77b533b
JH		 2877/*
2878 * initialise to avoid floating-point exceptions from overflow, etc
2879 */
2880#ifndef PERL_FPU_INIT
2881# ifdef HAS_FPSETMASK
2882# if HAS_FLOATINGPOINT_H
2883# include <floatingpoint.h>
2884# endif
ad3a8c67
NC		 2885/* Some operating systems have this as a macro, which in turn expands to a comma
2886 expression, and the last sub-expression is something that gets calculated,
2887 and then they have the gall to warn that a value computed is not used. Hence
2888 cast to void. */
2889# define PERL_FPU_INIT (void)fpsetmask(0)
c77b533b 2890# else
2f42fcb0 2891# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
7f7c3354 2892# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
b35112e7
CS		 2893# define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2894# define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); }
7014c407
JH		 2895# else
2896# define PERL_FPU_INIT
2f42fcb0 2897
7014c407 2898# endif
c77b533b
JH		 2899# endif
2900#endif
b35112e7
CS		 2901#ifndef PERL_FPU_PRE_EXEC
2902# define PERL_FPU_PRE_EXEC {
2903# define PERL_FPU_POST_EXEC }
2904#endif
c77b533b 2905
a308b05a
JH		 2906/* In Tru64 the cc -ieee enables the IEEE math but disables traps.
2907 * We need to reenable the "invalid" trap because otherwise generation
2908 * of NaN values leaves the IEEE fp flags in bad state, leaving any further
2909 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */
2910#ifdef __osf__
2911# include <machine/fpu.h>
2912# define PERL_SYS_FPU_INIT \
2913 STMT_START { \
2914 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \
2915 signal(SIGFPE, SIG_IGN); \
2916 } STMT_END
2917#endif
94a08944
JH		 2918/* In IRIX the default for Flush to Zero bit is true,
2919 * which means that results going below the minimum of normal
2920 * floating points go to zero, instead of going denormal/subnormal.
2921 * This is unlike almost any other system running Perl, so let's clear it.
2922 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally
2923 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits
2924 *
2925 * XXX The flush-to-zero behaviour should be a Configure scan.
2926 * To change the behaviour usually requires some system-specific
2927 * incantation, though, like the below. */
2928#ifdef __sgi
2929# include <sys/fpu.h>
2930# define PERL_SYS_FPU_INIT \
2931 STMT_START { \
2932 union fpc_csr csr; \
2933 csr.fc_word = get_fpc_csr(); \
2934 csr.fc_struct.flush = 0; \
2935 set_fpc_csr(csr.fc_word); \
2936 } STMT_END
2937#endif
a308b05a
JH		 2938
2939#ifndef PERL_SYS_FPU_INIT
2940# define PERL_SYS_FPU_INIT NOOP
2941#endif
2942
cbec8ebe
DM		 2943#ifndef PERL_SYS_INIT3_BODY
2944# define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
ed344e4f
IZ		 2945#endif
2946
eb533572 2947/*
dcccc8ff
KW		 2948=head1 Miscellaneous Functions
2949
4ad9e498 2950=for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv
eb533572 2951Provides system-specific tune up of the C runtime environment necessary to
72d33970 2952run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2953any Perl interpreters.
2954
4ad9e498 2955=for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env
eb533572 2956Provides system-specific tune up of the C runtime environment necessary to
72d33970 2957run Perl interpreters. This should be called only once, before creating
eb533572
DM		 2958any Perl interpreters.
2959
2960=for apidoc Am|void|PERL_SYS_TERM|
2961Provides system-specific clean up of the C runtime environment after
72d33970 2962running Perl interpreters. This should be called only once, after
eb533572
DM		 2963freeing any remaining Perl interpreters.
2964
2965=cut
2966 */
2967
cbec8ebe
DM		 2968#define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv)
2969#define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env)
d0820ef1 2970#define PERL_SYS_TERM() Perl_sys_term()
cbec8ebe 2971
be708cc0
JH		 2972#ifndef PERL_WRITE_MSG_TO_CONSOLE
2973# define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2974#endif
2975
0f31cffe
GS		 2976#ifndef MAXPATHLEN
2977# ifdef PATH_MAX
b990c8b2
JH		 2978# ifdef _POSIX_PATH_MAX
2979# if PATH_MAX > _POSIX_PATH_MAX
09448d78
JH		 2980/* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2981 * included the null byte or not. Later amendments of POSIX,
2982 * XPG4, the Austin Group, and the Single UNIX Specification
2983 * all explicitly include the null byte in the PATH_MAX.
2984 * Ditto for _POSIX_PATH_MAX. */
2985# define MAXPATHLEN PATH_MAX
b990c8b2 2986# else
09448d78 2987# define MAXPATHLEN _POSIX_PATH_MAX
b990c8b2
JH		 2988# endif
2989# else
2990# define MAXPATHLEN (PATH_MAX+1)
2991# endif
0f31cffe 2992# else
d552bce8 2993# define MAXPATHLEN 1024 /* Err on the large side. */
0f31cffe
GS		 2994# endif
2995#endif
2996
c80263a8
SH		 2997/* In case Configure was not used (we are using a "canned config"
2998 * such as Win32, or a cross-compilation setup, for example) try going
2999 * by the gcc major and minor versions. One useful URL is
3000 * http://www.ohse.de/uwe/articles/gcc-attributes.html,
3001 * but contrary to this information warn_unused_result seems
3002 * not to be in gcc 3.3.5, at least. --jhi
42bf5550
AD		 3003 * Also, when building extensions with an installed perl, this allows
3004 * the user to upgrade gcc and get the right attributes, rather than
3005 * relying on the list generated at Configure time. --AD
c80263a8
SH		 3006 * Set these up now otherwise we get confused when some of the <*thread.h>
3007 * includes below indirectly pull in <perlio.h> (which needs to know if we
3008 * have HASATTRIBUTE_FORMAT).
3009 */
3010
4d7c7898 3011#ifndef PERL_MICRO
fc2007d4 3012#if defined __GNUC__ && !defined(__INTEL_COMPILER)
6a387721
RGS		 3013# if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */
3014# define HASATTRIBUTE_DEPRECATED
3015# endif
c80263a8
SH		 3016# if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
3017# define HASATTRIBUTE_FORMAT
63cdf24b
SH		 3018# if defined __MINGW32__
3019# define PRINTF_FORMAT_NULL_OK
3020# endif
c80263a8
SH		 3021# endif
3022# if __GNUC__ >= 3 /* 3.0 -> */
3023# define HASATTRIBUTE_MALLOC
3024# endif
3025# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
3026# define HASATTRIBUTE_NONNULL
3027# endif
3028# if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
3029# define HASATTRIBUTE_NORETURN
3030# endif
3031# if __GNUC__ >= 3 /* gcc 3.0 -> */
3032# define HASATTRIBUTE_PURE
3033# endif
42bf5550 3034# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
c80263a8
SH		 3035# define HASATTRIBUTE_UNUSED
3036# endif
d324fe49
AD		 3037# if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
3038# define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
3039# endif
c80263a8
SH		 3040# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
3041# define HASATTRIBUTE_WARN_UNUSED_RESULT
3042# endif
3043#endif
00f254e2 3044#endif /* #ifndef PERL_MICRO */
c80263a8 3045
3db8f154 3046/* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
dd96f567 3047 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
32f822de
GS		 3048 * this results in many functions being undeclared which bothers C++
3049 * May make sense to have threads after "*ish.h" anyway
3050 */
3051
3db8f154 3052#if defined(USE_ITHREADS)
2986a63f
JH		 3053# ifdef NETWARE
3054# include <nw5thread.h>
3055# else
32f822de
GS		 3056# ifdef WIN32
3057# include <win32thread.h>
3058# else
dd96f567
IZ		 3059# ifdef OS2
3060# include "os2thread.h"
3061# else
7f3d1cf1 3062# ifdef I_MACH_CTHREADS
bdd66968 3063# include <mach/cthreads.h>
7f3d1cf1
BH		 3064typedef cthread_t perl_os_thread;
3065typedef mutex_t perl_mutex;
3066typedef condition_t perl_cond;
3067typedef void * perl_key;
3068# else /* Posix threads */
1f5ae88c
JH		 3069# ifdef I_PTHREAD
3070# include <pthread.h>
3071# endif
7f3d1cf1
BH		 3072typedef pthread_t perl_os_thread;
3073typedef pthread_mutex_t perl_mutex;
3074typedef pthread_cond_t perl_cond;
3075typedef pthread_key_t perl_key;
3076# endif /* I_MACH_CTHREADS */
dd96f567 3077# endif /* OS2 */
32f822de 3078# endif /* WIN32 */
ef4abe76 3079# endif /* NETWARE */
3db8f154 3080#endif /* USE_ITHREADS */
c5be433b 3081
66a93824 3082#if defined(WIN32)
1feb2720 3083# include "win32.h"
c5be433b
GS		 3084#endif
3085
2986a63f
JH		 3086#ifdef NETWARE
3087# include "netware.h"
3088#endif
3089
e5218da5 3090#define STATUS_UNIX PL_statusvalue
68dc0745 3091#ifdef VMS
6b88bc9c 3092# define STATUS_NATIVE PL_statusvalue_vms
7a7fd8e0
JM		 3093/*
3094 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
ff7298cb 3095 * its contents can not be trusted. Unfortunately, Perl seems to check
7a7fd8e0
JM		 3096 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
3097 * be updated also.
3098 */
3099# include <stsdef.h>
3100# include <ssdef.h>
3101/* Presume this because if VMS changes it, it will require a new
3102 * set of APIs for waiting on children for binary compatibility.
3103 */
3104# define child_offset_bits (8)
3105# ifndef C_FAC_POSIX
3106# define C_FAC_POSIX 0x35A000
3107# endif
3108
3109/* STATUS_EXIT - validates and returns a NATIVE exit status code for the
3110 * platform from the existing UNIX or Native status values.
3111 */
3112
37038d91 3113# define STATUS_EXIT \
7a7fd8e0
JM		 3114 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
3115 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
3116
7a7fd8e0 3117
fb38d079
JM		 3118/* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
3119 * exit code and shifts the UNIX value over the correct number of bits to
3120 * be a child status. Usually the number of bits is 8, but that could be
3121 * platform dependent. The NATIVE status code is presumed to have either
3122 * from a child process.
7a7fd8e0
JM		 3123 */
3124
fb38d079
JM		 3125/* This is complicated. The child processes return a true native VMS
3126 status which must be saved. But there is an assumption in Perl that
3127 the UNIX child status has some relationship to errno values, so
00f254e2 3128 Perl tries to translate it to text in some of the tests.
fb38d079
JM		 3129 In order to get the string translation correct, for the error, errno
3130 must be EVMSERR, but that generates a different text message
3131 than what the test programs are expecting. So an errno value must
3132 be derived from the native status value when an error occurs.
3133 That will hide the true native status message. With this version of
3134 perl, the true native child status can always be retrieved so that
3135 is not a problem. But in this case, Pl_statusvalue and errno may
3136 have different values in them.
3137 */
7a7fd8e0 3138
fb38d079 3139# define STATUS_NATIVE_CHILD_SET(n) \
68dc0745 3140 STMT_START { \
2fbb330f
JM		 3141 I32 evalue = (I32)n; \
3142 if (evalue == EVMSERR) { \
3143 PL_statusvalue_vms = vaxc$errno; \
3144 PL_statusvalue = evalue; \
7a7fd8e0 3145 } else { \
2fbb330f 3146 PL_statusvalue_vms = evalue; \
fb38d079 3147 if (evalue == -1) { \
3280af22 3148 PL_statusvalue = -1; \
7a7fd8e0
JM		 3149 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
3150 } else \
fb38d079 3151 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \
2fbb330f 3152 set_vaxc_errno(evalue); \
fb38d079
JM		 3153 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \
3154 set_errno(EVMSERR); \
3155 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \
3156 PL_statusvalue = PL_statusvalue << child_offset_bits; \
2fbb330f 3157 } \
68dc0745 3158 } STMT_END
7a7fd8e0 3159
68dc0745 3160# ifdef VMSISH_STATUS
e5218da5 3161# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
68dc0745 3162# else
e5218da5 3163# define STATUS_CURRENT STATUS_UNIX
68dc0745 3164# endif
7a7fd8e0
JM		 3165
3166 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
3167 * the NATIVE status to an equivalent value. Can not be used to translate
3168 * exit code values as exit code values are not guaranteed to have any
3169 * relationship at all to errno values.
3170 * This is used when Perl is forcing errno to have a specific value.
3171 */
e5218da5 3172# define STATUS_UNIX_SET(n) \
68dc0745 3173 STMT_START { \
7a7fd8e0 3174 I32 evalue = (I32)n; \
0968cdad 3175 PL_statusvalue = evalue; \
3280af22 3176 if (PL_statusvalue != -1) { \
0968cdad
JM		 3177 if (PL_statusvalue != EVMSERR) { \
3178 PL_statusvalue &= 0xFFFF; \
3179 if (MY_POSIX_EXIT) \
3180 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
3181 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
3182 } \
3183 else { \
3184 PL_statusvalue_vms = vaxc$errno; \
3185 } \
68dc0745 3186 } \
0968cdad
JM		 3187 else PL_statusvalue_vms = SS$_ABORT; \
3188 set_vaxc_errno(PL_statusvalue_vms); \
7a7fd8e0
JM		 3189 } STMT_END
3190
3191 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
e08e1e1d
JM		 3192 * the NATIVE error status based on it.
3193 *
3194 * When in the default mode to comply with the Perl VMS documentation,
3195 * 0 is a success and any other code sets the NATIVE status to a failure
3196 * code of SS$_ABORT.
fb38d079
JM		 3197 *
3198 * In the new POSIX EXIT mode, native status will be set so that the
3199 * actual exit code will can be retrieved by the calling program or
3200 * shell.
3201 *
3202 * If the exit code is not clearly a UNIX parent or child exit status,
3203 * it will be passed through as a VMS status.
7a7fd8e0
JM		 3204 */
3205
fb38d079 3206# define STATUS_UNIX_EXIT_SET(n) \
7a7fd8e0
JM		 3207 STMT_START { \
3208 I32 evalue = (I32)n; \
3209 PL_statusvalue = evalue; \
e08e1e1d
JM		 3210 if (MY_POSIX_EXIT) { \
3211 if (evalue <= 0xFF00) { \
3212 if (evalue > 0xFF) \
3213 evalue = (evalue >> child_offset_bits) & 0xFF; \
3214 PL_statusvalue_vms = \
3215 (C_FAC_POSIX | (evalue << 3 ) | \
3216 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \
3217 } else /* forgive them Perl, for they have sinned */ \
3218 PL_statusvalue_vms = evalue; \
3219 } else { \
3220 if (evalue == 0) \
3221 PL_statusvalue_vms = SS$_NORMAL; \
3222 else if (evalue <= 0xFF00) \
3223 PL_statusvalue_vms = SS$_ABORT; \
3224 else { /* forgive them Perl, for they have sinned */ \
3225 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
3226 else PL_statusvalue_vms = vaxc$errno; \
3227 /* And obviously used a VMS status value instead of UNIX */ \
3228 PL_statusvalue = EVMSERR; \
3229 } \
3230 set_vaxc_errno(PL_statusvalue_vms); \
3231 } \
68dc0745 3232 } STMT_END
fb38d079 3233
e08e1e1d 3234
6ac6a52b
JM		 3235 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
3236 * and sets the NATIVE error status based on it. This special case
3237 * is needed to maintain compatibility with past VMS behavior.
3238 *
3239 * In the default mode on VMS, this number is passed through as
3240 * both the NATIVE and UNIX status. Which makes it different
3241 * that the STATUS_UNIX_EXIT_SET.
3242 *
3243 * In the new POSIX EXIT mode, native status will be set so that the
3244 * actual exit code will can be retrieved by the calling program or
3245 * shell.
3246 *
1a3aec58
JM		 3247 * A POSIX exit code is from 0 to 255. If the exit code is higher
3248 * than this, it needs to be assumed that it is a VMS exit code and
3249 * passed through.
6ac6a52b
JM		 3250 */
3251
3252# define STATUS_EXIT_SET(n) \
3253 STMT_START { \
3254 I32 evalue = (I32)n; \
3255 PL_statusvalue = evalue; \
3256 if (MY_POSIX_EXIT) \
1a3aec58
JM		 3257 if (evalue > 255) PL_statusvalue_vms = evalue; else { \
3258 PL_statusvalue_vms = \
3259 (C_FAC_POSIX | (evalue << 3 ) | \
3260 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \
6ac6a52b
JM		 3261 else \
3262 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
3263 set_vaxc_errno(PL_statusvalue_vms); \
3264 } STMT_END
3265
fb38d079
JM		 3266
3267 /* This macro forces a success status */
7a7fd8e0
JM		 3268# define STATUS_ALL_SUCCESS \
3269 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
fb38d079
JM		 3270
3271 /* This macro forces a failure status */
7a7fd8e0
JM		 3272# define STATUS_ALL_FAILURE (PL_statusvalue = 1, \
3273 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
3274 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
fb38d079 3275
738ab09f
AB		 3276#elif defined(__amigaos4__)
3277 /* A somewhat experimental attempt to simulate posix return code values */
3278# define STATUS_NATIVE PL_statusvalue_posix
3279# define STATUS_NATIVE_CHILD_SET(n) \
3280 STMT_START { \
3281 PL_statusvalue_posix = (n); \
3282 if (PL_statusvalue_posix < 0) { \
3283 PL_statusvalue = -1; \
3284 } \
3285 else { \
3286 PL_statusvalue = n << 8; \
3287 } \
3288 } STMT_END
3289# define STATUS_UNIX_SET(n) \
3290 STMT_START { \
3291 PL_statusvalue = (n); \
3292 if (PL_statusvalue != -1) \
3293 PL_statusvalue &= 0xFFFF; \
3294 } STMT_END
3295# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3296# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3297# define STATUS_CURRENT STATUS_UNIX
3298# define STATUS_EXIT STATUS_UNIX
3299# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3300# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3301
68dc0745 3302#else
e5218da5 3303# define STATUS_NATIVE PL_statusvalue_posix
e5218da5 3304# if defined(WCOREDUMP)
37038d91 3305# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3306 STMT_START { \
3307 PL_statusvalue_posix = (n); \
3308 if (PL_statusvalue_posix == -1) \
3309 PL_statusvalue = -1; \
3310 else { \
3311 PL_statusvalue = \
3312 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3313 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
3314 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \
3315 } \
3316 } STMT_END
3317# elif defined(WIFEXITED)
37038d91 3318# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3319 STMT_START { \
3320 PL_statusvalue_posix = (n); \
3321 if (PL_statusvalue_posix == -1) \
3322 PL_statusvalue = -1; \
3323 else { \
3324 PL_statusvalue = \
3325 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \
3326 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \
3327 } \
3328 } STMT_END
3329# else
37038d91 3330# define STATUS_NATIVE_CHILD_SET(n) \
e5218da5
GA		 3331 STMT_START { \
3332 PL_statusvalue_posix = (n); \
3333 if (PL_statusvalue_posix == -1) \
3334 PL_statusvalue = -1; \
3335 else { \
3336 PL_statusvalue = \
3337 PL_statusvalue_posix & 0xFFFF; \
3338 } \
3339 } STMT_END
3340# endif
3341# define STATUS_UNIX_SET(n) \
68dc0745 3342 STMT_START { \
3280af22
NIS		 3343 PL_statusvalue = (n); \
3344 if (PL_statusvalue != -1) \
3345 PL_statusvalue &= 0xFFFF; \
68dc0745 3346 } STMT_END
7a7fd8e0 3347# define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
6ac6a52b 3348# define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
e5218da5 3349# define STATUS_CURRENT STATUS_UNIX
37038d91 3350# define STATUS_EXIT STATUS_UNIX
e5218da5
GA		 3351# define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3352# define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1)
68dc0745 3353#endif
3354
cc3604b1
GS		 3355/* flags in PL_exit_flags for nature of exit() */
3356#define PERL_EXIT_EXPECTED 0x01
31d77e54 3357#define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */
6136213b
JGM		 3358#define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */
3359#define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */
cc3604b1 3360
b79b76e0 3361#ifndef PERL_CORE
a7cb1f99 3362/* format to use for version numbers in file/directory names */
273cf8d1 3363/* XXX move to Configure? */
b79b76e0
NC		 3364/* This was only ever used for the current version, and that can be done at
3365 compile time, as PERL_FS_VERSION, so should we just delete it? */
3366# ifndef PERL_FS_VER_FMT
3367# define PERL_FS_VER_FMT "%d.%d.%d"
3368# endif
3369#endif
3370
3371#ifndef PERL_FS_VERSION
3372# define PERL_FS_VERSION PERL_VERSION_STRING
0b94c7bb
GS		 3373#endif
3374
45bc9206 3375/* This defines a way to flush all output buffers. This may be a
76549fef
JH		 3376 * performance issue, so we allow people to disable it. Also, if
3377 * we are using stdio, there are broken implementations of fflush(NULL)
3378 * out there, Solaris being the most prominent.
45bc9206
GS		 3379 */
3380#ifndef PERL_FLUSHALL_FOR_CHILD
97cb92d6 3381# if defined(USE_PERLIO) || defined(FFLUSH_NULL)
66fe083f 3382# define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL)
767df6a1
JH		 3383# else
3384# ifdef FFLUSH_ALL
3385# define PERL_FLUSHALL_FOR_CHILD my_fflush_all()
e2dbf222 3386# else
c5be433b 3387# define PERL_FLUSHALL_FOR_CHILD NOOP
767df6a1 3388# endif
66fe083f 3389# endif
45bc9206
GS		 3390#endif
3391
7766f137
GS		 3392#ifndef PERL_WAIT_FOR_CHILDREN
3393# define PERL_WAIT_FOR_CHILDREN NOOP
3394#endif
3395
ba869deb 3396/* the traditional thread-unsafe notion of "current interpreter". */
c5be433b
GS		 3397#ifndef PERL_SET_INTERP
3398# define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i))
3399#endif
3400
3401#ifndef PERL_GET_INTERP
3402# define PERL_GET_INTERP (PL_curinterp)
3403#endif
3404
54aff467 3405#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
54aff467 3406# ifdef MULTIPLICITY
ba869deb 3407# define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT)
54aff467 3408# endif
ba869deb
GS		 3409# define PERL_SET_THX(t) PERL_SET_CONTEXT(t)
3410#endif
3411
00f254e2 3412/*
8896765a 3413 This replaces the previous %_ "hack" by the "%p" hacks.
0dbb1585 3414 All that is required is that the perl source does not
00f254e2
KW		 3415 use "%-p" or "%-<number>p" or "%<number>p" formats.
3416 These formats will still work in perl code.
486ec47a 3417 See comments in sv.c for further details.
8896765a 3418
8896765a 3419 Robin Barker 2005-07-14
f46d31f2 3420
00f254e2 3421 No longer use %1p for VDf = %vd. RMB 2007-10-19
0dbb1585 3422*/
8896765a
RB		 3423
3424#ifndef SVf_
63ce7bf0 3425# define SVf_(n) "-" STRINGIFY(n) "p"
894356b3
GS		 3426#endif
3427
8896765a 3428#ifndef SVf
104abab4 3429# define SVf "-p"
d2560b70
RB		 3430#endif
3431
014ead4b 3432#ifndef SVf32
8896765a 3433# define SVf32 SVf_(32)
014ead4b
RB		 3434#endif
3435
3436#ifndef SVf256
8896765a
RB		 3437# define SVf256 SVf_(256)
3438#endif
3439
be2597df
MHM		 3440#define SVfARG(p) ((void*)(p))
3441
20023040
FC		 3442#ifndef HEKf
3443# define HEKf "2p"
3444#endif
3445
b8fa5213
FC		 3446/* Not ideal, but we cannot easily include a number in an already-numeric
3447 * format sequence. */
3448#ifndef HEKf256
3449# define HEKf256 "3p"
3450#endif
3451
20023040
FC		 3452#define HEKfARG(p) ((void*)(p))
3453
b17a0679
FC		 3454/* Takes three arguments: is_utf8, length, str */
3455#ifndef UTF8f
61608bb7 3456# define UTF8f "d%" UVuf "%4p"
b17a0679
FC		 3457#endif
3458#define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p)
3459
0f94cb1f
FC		 3460#define PNf UTF8f
3461#define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn)
0d1e9135 3462
f46d31f2 3463#ifdef PERL_CORE
486ec47a 3464/* not used; but needed for backward compatibility with XS code? - RMB */
7776bb98
RB		 3465# undef UVf
3466#else
170cd9e9
NC		 3467# ifndef UVf
3468# define UVf UVuf
3469# endif
d2560b70
RB		 3470#endif
3471
fcdf39cf
RGS		 3472#ifdef HASATTRIBUTE_DEPRECATED
3473# define __attribute__deprecated__ __attribute__((deprecated))
3474#endif
0dbb1585
AL		 3475#ifdef HASATTRIBUTE_FORMAT
3476# define __attribute__format__(x,y,z) __attribute__((format(x,y,z)))
3477#endif
3478#ifdef HASATTRIBUTE_MALLOC
77785eea 3479# define __attribute__malloc__ __attribute__((__malloc__))
f22be1b8 3480#endif
0dbb1585 3481#ifdef HASATTRIBUTE_NONNULL
abb2c242 3482# define __attribute__nonnull__(a) __attribute__((nonnull(a)))
f22be1b8 3483#endif
0dbb1585 3484#ifdef HASATTRIBUTE_NORETURN
abb2c242 3485# define __attribute__noreturn__ __attribute__((noreturn))
f22be1b8 3486#endif
0dbb1585 3487#ifdef HASATTRIBUTE_PURE
abb2c242 3488# define __attribute__pure__ __attribute__((pure))
f22be1b8 3489#endif
0dbb1585
AL		 3490#ifdef HASATTRIBUTE_UNUSED
3491# define __attribute__unused__ __attribute__((unused))
3492#endif
3493#ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
abb2c242 3494# define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
f22be1b8
JH		 3495#endif
3496
0dbb1585 3497/* If we haven't defined the attributes yet, define them to blank. */
fcdf39cf
RGS		 3498#ifndef __attribute__deprecated__
3499# define __attribute__deprecated__
3500#endif
0dbb1585
AL		 3501#ifndef __attribute__format__
3502# define __attribute__format__(x,y,z)
3503#endif
f22be1b8 3504#ifndef __attribute__malloc__
abb2c242 3505# define __attribute__malloc__
f22be1b8
JH		 3506#endif
3507#ifndef __attribute__nonnull__
abb2c242 3508# define __attribute__nonnull__(a)
f22be1b8
JH		 3509#endif
3510#ifndef __attribute__noreturn__
abb2c242 3511# define __attribute__noreturn__
f22be1b8
JH		 3512#endif
3513#ifndef __attribute__pure__
abb2c242 3514# define __attribute__pure__
f22be1b8 3515#endif
0dbb1585
AL		 3516#ifndef __attribute__unused__
3517# define __attribute__unused__
3518#endif
f22be1b8 3519#ifndef __attribute__warn_unused_result__
abb2c242
JH		 3520# define __attribute__warn_unused_result__
3521#endif
3522
6d59e610
LM		 3523#ifdef I_ASSERT
3524# if !defined(DEBUGGING) && !defined(NDEBUG)
3525# define NDEBUG 1
3526# endif
cd13e623
JH		 3527# include <assert.h>
3528#endif
3529
0dbb1585
AL		 3530/* For functions that are marked as __attribute__noreturn__, it's not
3531 appropriate to call return. In either case, include the lint directive.
3532 */
3533#ifdef HASATTRIBUTE_NORETURN
bc3d2941 3534# define NORETURN_FUNCTION_END NOT_REACHED;
0dbb1585 3535#else
bc3d2941 3536# define NORETURN_FUNCTION_END NOT_REACHED; return 0
abb2c242
JH		 3537#endif
3538
cdfeb707
RB		 3539/* Some OS warn on NULL format to printf */
3540#ifdef PRINTF_FORMAT_NULL_OK
3541# define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z)
3542#else
00f254e2 3543# define __attribute__format__null_ok__(x,y,z)
cdfeb707
RB		 3544#endif
3545
635aebb7 3546#ifdef HAS_BUILTIN_EXPECT
b37c2d43
AL		 3547# define EXPECT(expr,val) __builtin_expect(expr,val)
3548#else
3549# define EXPECT(expr,val) (expr)
3550#endif
6d5abc62
NC		 3551#define LIKELY(cond) EXPECT(cBOOL(cond),TRUE)
3552#define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE)
635aebb7
AL		 3553#ifdef HAS_BUILTIN_CHOOSE_EXPR
3554/* placeholder */
3555#endif
b37c2d43 3556
5074d4c5
LM		 3557/* STATIC_ASSERT_GLOBAL/STATIC_ASSERT_STMT are like assert(), but for compile
3558 time invariants. That is, their argument must be a constant expression that
3559 can be verified by the compiler. This expression can contain anything that's
3560 known to the compiler, e.g. #define constants, enums, or sizeof (...). If
3561 the expression evaluates to 0, compilation fails.
3562 Because they generate no runtime code (i.e. their use is "free"), they're
3563 always active, even under non-DEBUGGING builds.
3564 STATIC_ASSERT_GLOBAL expands to a declaration and is suitable for use at
3565 file scope (outside of any function).
3566 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a
3567 function.
3568*/
7ea096df 3569#if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210)
6d59e610
LM		 3570/* static_assert is a macro defined in <assert.h> in C11 or a compiler
3571 builtin in C++11.
3572*/
7ea096df 3573/* IBM XL C V11 does not support _Static_assert, no matter what <assert.h> says */
d0044f85 3574# define STATIC_ASSERT_GLOBAL(COND) static_assert(COND, #COND)
6d59e610
LM		 3575#else
3576/* We use a bit-field instead of an array because gcc accepts
3577 'typedef char x[n]' where n is not a compile-time constant.
3578 We want to enforce constantness.
3579*/
3580# define STATIC_ASSERT_2(COND, SUFFIX) \
3581 typedef struct { \
3582 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \
3583 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL
3584# define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX)
3585# define STATIC_ASSERT_GLOBAL(COND) STATIC_ASSERT_1(COND, __LINE__)
3586#endif
3587/* We need this wrapper even in C11 because 'case X: static_assert(...);' is an
3588 error (static_assert is a declaration, and only statements can have labels).
3589*/
3590#define STATIC_ASSERT_STMT(COND) do { STATIC_ASSERT_GLOBAL(COND); } while (0)
ae103e09
DD		 3591
3592#ifndef __has_builtin
3593# define __has_builtin(x) 0 /* not a clang style compiler */
3594#endif
3595
3596/* ASSUME is like assert(), but it has a benefit in a release build. It is a
3597 hint to a compiler about a statement of fact in a function call free
3598 expression, which allows the compiler to generate better machine code.
3599 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means
3600 the control path is unreachable. In a for loop, ASSUME can be used to hint
b8fda935 3601 that a loop will run at least X times. ASSUME is based off MSVC's __assume
ae103e09
DD		 3602 intrinsic function, see its documents for more details.
3603*/
3604
3605#ifndef DEBUGGING
3606# if __has_builtin(__builtin_unreachable) \
d1020b40 3607 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */
ae103e09
DD		 3608# define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable())
3609# elif defined(_MSC_VER)
3610# define ASSUME(x) __assume(x)
3611# elif defined(__ARMCC_VERSION) /* untested */
3612# define ASSUME(x) __promise(x)
3613# else
3614/* a random compiler might define assert to its own special optimization token
3615 so pass it through to C lib as a last resort */
3616# define ASSUME(x) assert(x)
3617# endif
3618#else
3619# define ASSUME(x) assert(x)
3620#endif
3621
3622#define NOT_REACHED ASSUME(0)
3623
3fc1aec6 3624/* Some unistd.h's give a prototype for pause() even though
3625 HAS_PAUSE ends up undefined. This causes the #define
d2560b70 3626 below to be rejected by the compiler. Sigh.
3fc1aec6 3627*/
3628#ifdef HAS_PAUSE
3629#define Pause pause
3630#else
3631#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 3632#endif
3633
3634#ifndef IOCPARM_LEN
3635# ifdef IOCPARM_MASK
61f1c44b 3636 /* on BSDish systems we're safe */
748a9306
LW		 3637# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
3638# else
61f1c44b 3639# if defined(_IOC_SIZE) && defined(__GLIBC__)
301eb2f0
GA		 3640 /* on Linux systems we're safe; except when we're not [perl #38223] */
3641# define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
61f1c44b 3642# else
748a9306 3643 /* otherwise guess at what's safe */
61f1c44b
JVD		 3644# define IOCPARM_LEN(x) 256
3645# endif
748a9306 3646# endif
a0d0e21e
LW		 3647#endif
3648
1761cee5 3649#if defined(__CYGWIN__)
521e0776
GS		 3650/* USEMYBINMODE
3651 * This symbol, if defined, indicates that the program should
16fe6d59 3652 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
521e0776
GS		 3653 * that a file is in "binary" mode -- that is, that no translation
3654 * of bytes occurs on read or write operations.
3655 */
36894f0b 3656# define USEMYBINMODE /**/
77a40698 3657# include <io.h> /* for setmode() prototype */
16fe6d59 3658# define my_binmode(fp, iotype, mode) \
77a40698 3659 (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
5aabfad6 3660#endif
3661
88d10794
JH		 3662#ifdef __CYGWIN__
3663void init_os_extras(void);
3664#endif
3665
cea2e8a9
GS		 3666#ifdef UNION_ANY_DEFINITION
3667UNION_ANY_DEFINITION;
3668#else
3669union any {
3670 void* any_ptr;
3671 I32 any_i32;
ae103e09 3672 U32 any_u32;
cea2e8a9 3673 IV any_iv;
c6bf6a65 3674 UV any_uv;
cea2e8a9 3675 long any_long;
9febdf04 3676 bool any_bool;
c76ac1ee 3677 void (*any_dptr) (void*);
acfe0abc 3678 void (*any_dxptr) (pTHX_ void*);
cea2e8a9
GS		 3679};
3680#endif
3681
acfe0abc 3682typedef I32 (*filter_t) (pTHX_ int, SV *, int);
cea2e8a9
GS		 3683
3684#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
5486870f
DM		 3685#define FILTER_DATA(idx) \
3686 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3687#define FILTER_ISREADER(idx) \
3688 (PL_parser && PL_parser->rsfp_filters \
3689 && idx >= AvFILLp(PL_parser->rsfp_filters))
3690#define PERL_FILTER_EXISTS(i) \
3691 (PL_parser && PL_parser->rsfp_filters \
b9f2b683 3692 && (i) <= av_tindex(PL_parser->rsfp_filters))
cea2e8a9 3693
c5078cac
JH		 3694#if defined(_AIX) && !defined(_AIX43)
3695#if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3696/* We cannot include <crypt.h> to get the struct crypt_data
3697 * because of setkey prototype problems when threading */
3698typedef struct crypt_data { /* straight from /usr/include/crypt.h */
3699 /* From OSF, Not needed in AIX
3700 char C[28], D[28];
3701 */
3702 char E[48];
3703 char KS[16][48];
3704 char block[66];
3705 char iobuf[16];
3706} CRYPTD;
3707#endif /* threading */
3708#endif /* AIX */
3709
fc6bde6f
DD		 3710#ifndef PERL_CALLCONV
3711# ifdef __cplusplus
3712# define PERL_CALLCONV extern "C"
3713# else
3714# define PERL_CALLCONV
3715# endif
3716#endif
3717#ifndef PERL_CALLCONV_NO_RET
3718# define PERL_CALLCONV_NO_RET PERL_CALLCONV
3719#endif
3720
3721/* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that
3722 dont have a noreturn as a declaration specifier
3723*/
3724#ifndef PERL_STATIC_NO_RET
3725# define PERL_STATIC_NO_RET STATIC
3726#endif
3727/* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on
3728 builds that dont have a noreturn as a declaration specifier
3729*/
3730#ifndef PERL_STATIC_INLINE_NO_RET
3731# define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE
3732#endif
3733
e37778c2 3734#if !defined(OS2)
2c2d71f5
JH		 3735# include "iperlsys.h"
3736#endif
504f80c1 3737
9c12f1e5 3738#ifdef __LIBCATAMOUNT__
00f254e2 3739#undef HAS_PASSWD /* unixish.h but not unixish enough. */
9c12f1e5
RGS		 3740#undef HAS_GROUP
3741#define FAKE_BIT_BUCKET
3742#endif
3743
d10dc2ae
JH		 3744/* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3745 * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3746 * defined by Configure, despite their names being similar to the
3747 * other defines like USE_ITHREADS. Configure in fact knows nothing
3748 * about the randomised hashes. Therefore to enable/disable the hash
3749 * randomisation defines use the Configure -Accflags=... instead. */
504f80c1 3750#if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
4546b9e6 3751# define USE_HASH_SEED
504f80c1
JH		 3752#endif
3753
153a1061
AB		 3754/* Win32 defines a type 'WORD' in windef.h, and AmigaOS in exec/types.h.
3755 * This conflicts with the enumerator 'WORD' defined in perly.h.
3756 * The yytokentype enum is only a debugging aid, so it's not really needed. */
3757#if defined(WIN32) || defined(__amigaos4__)
598921a7
NC		 3758# define YYTOKENTYPE
3759#endif
3760#include "perly.h"
3761
598921a7 3762
654eccd5
JD		 3763/* macros to define bit-fields in structs. */
3764#ifndef PERL_BITFIELD8
3765# define PERL_BITFIELD8 unsigned
3766#endif
3767#ifndef PERL_BITFIELD16
3768# define PERL_BITFIELD16 unsigned
3769#endif
3770#ifndef PERL_BITFIELD32
3771# define PERL_BITFIELD32 unsigned
3772#endif
3773
79072805 3774#include "sv.h"
288b8c02 3775#include "regexp.h"
378cc40b 3776#include "util.h"
8d063cd8 3777#include "form.h"
79072805 3778#include "gv.h"
dd2155a4 3779#include "pad.h"
79072805 3780#include "cv.h"
abdd5c84 3781#include "opnames.h"
79072805 3782#include "op.h"
b3ca2e83 3783#include "hv.h"
79072805
LW		 3784#include "cop.h"
3785#include "av.h"
79072805
LW		 3786#include "mg.h"
3787#include "scope.h"
4438c4b7 3788#include "warnings.h"
a0ed51b3 3789#include "utf8.h"
8d063cd8 3790
0d7d409d
DM		 3791/* these would be in doio.h if there was such a file */
3792#define my_stat() my_stat_flags(SV_GMAGIC)
3793#define my_lstat() my_lstat_flags(SV_GMAGIC)
3794
20f4945e 3795/* defined in sv.c, but also used in [ach]v.c */
20f4945e
MHM		 3796#undef _XPV_HEAD
3797#undef _XPVMG_HEAD
3798#undef _XPVCV_COMMON
7fae4e64
GS		 3799
3800typedef struct _sublex_info SUBLEXINFO;
3801struct _sublex_info {
651b5b28
NC		 3802 U8 super_state; /* lexer state to save */
3803 U16 sub_inwhat; /* "lex_inwhat" to use */
7fae4e64 3804 OP *sub_op; /* "lex_op" to use */
7cc34111 3805 SV *repl; /* replacement of s/// or y/// */
7fae4e64
GS		 3806};
3807
199e78b7
DM		 3808#include "parser.h"
3809
455ece5e 3810typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
76e3520e 3811
2260ab51
KW		 3812#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C)
3813
3814/* These have to be predeclared, as they are used in proto.h which is #included
3815 * before their definitions in regcomp.h. */
3816
3817struct scan_data_t;
7dcac5f6
KW		 3818typedef struct regnode_charclass regnode_charclass;
3819
2260ab51 3820struct regnode_charclass_class;
d1d040e5
KW		 3821
3822/* A hopefully less confusing name. The sub-classes are all Posix classes only
3823 * used under /l matching */
3824typedef struct regnode_charclass_class regnode_charclass_posixl;
3825
b8f7bb16 3826typedef struct regnode_ssc regnode_ssc;
09b2b2e6
KW		 3827typedef struct RExC_state_t RExC_state_t;
3828struct _reg_trie_data;
76e3520e 3829
2260ab51
KW		 3830#endif
3831
5f7fde29
GS		 3832struct ptr_tbl_ent {
3833 struct ptr_tbl_ent* next;
53c1dcc0 3834 const void* oldval;
5f7fde29 3835 void* newval;
d18c6117
GS		 3836};
3837
5f7fde29
GS		 3838struct ptr_tbl {
3839 struct ptr_tbl_ent** tbl_ary;
3840 UV tbl_max;
3841 UV tbl_items;
db93c0c4
NC		 3842 struct ptr_tbl_arena *tbl_arena;
3843 struct ptr_tbl_ent *tbl_arena_next;
3844 struct ptr_tbl_ent *tbl_arena_end;
d18c6117
GS		 3845};
3846
fe14fcc3
LW		 3847#if defined(htonl) && !defined(HAS_HTONL)
3848#define HAS_HTONL
ae986130 3849#endif
fe14fcc3
LW		 3850#if defined(htons) && !defined(HAS_HTONS)
3851#define HAS_HTONS
ae986130 3852#endif
fe14fcc3
LW		 3853#if defined(ntohl) && !defined(HAS_NTOHL)
3854#define HAS_NTOHL
ae986130 3855#endif
fe14fcc3
LW		 3856#if defined(ntohs) && !defined(HAS_NTOHS)
3857#define HAS_NTOHS
ae986130 3858#endif
fe14fcc3 3859#ifndef HAS_HTONL
fe14fcc3
LW		 3860#define HAS_HTONS
3861#define HAS_HTONL
3862#define HAS_NTOHS
3863#define HAS_NTOHL
8e2d7c44
NC		 3864# if (BYTEORDER & 0xffff) == 0x4321
3865/* Big endian system, so ntohl, ntohs, htonl and htons do not need to
3866 re-order their values. However, to behave identically to the alternative
3867 implementations, they should truncate to the correct size. */
3868# define ntohl(x) ((x)&0xFFFFFFFF)
3869# define htonl(x) ntohl(x)
3870# define ntohs(x) ((x)&0xFFFF)
3871# define htons(x) ntohs(x)
e4b03fed
NC		 3872# elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
3873
3874/* Note that we can't straight out declare our own htonl and htons because
3875 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl,
3876 to avoid the overhead of initialising the socket subsystem, but the headers
3877 that *declare* the various functions are still seen. If we declare our own
3878 htonl etc they will clash with the declarations in the Win32 headers. */
3879
3880PERL_STATIC_INLINE U32
3881my_swap32(const U32 x) {
3882 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF)
3883 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8);
3884}
3885
3886PERL_STATIC_INLINE U16
3887my_swap16(const U16 x) {
3888 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF);
3889}
3890
3891# define htonl(x) my_swap32(x)
3892# define ntohl(x) my_swap32(x)
3893# define ntohs(x) my_swap16(x)
3894# define htons(x) my_swap16(x)
8e2d7c44 3895# else
691a44df
NC		 3896# error "Unsupported byteorder"
3897/* The C pre-processor doesn't let us return the value of BYTEORDER as part of
3898 the error message. Please check the value of the macro BYTEORDER, as defined
3899 in config.h. The values of BYTEORDER we expect are
3900
3901 big endian little endian
3902 32 bit 0x4321 0x1234
3903 64 bit 0x87654321 0x12345678
3904
3905 If you have a system with a different byte order, please see
3906 pod/perlhack.pod for how to submit a patch to add supporting code.
3907*/
3908# endif
a687059c
LW		 3909#endif
3910
988174c1
LW		 3911/*
3912 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3913 * -DWS
3914 */
5ae72479 3915#if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
260c6fee
NC		 3916/* Little endian system, so vtohl, vtohs, htovl and htovs do not need to
3917 re-order their values. However, to behave identically to the alternative
3918 implementations, they should truncate to the correct size. */
3919# define vtohl(x) ((x)&0xFFFFFFFF)
3920# define vtohs(x) ((x)&0xFFFF)
3921# define htovl(x) vtohl(x)
3922# define htovs(x) vtohs(x)
545872c5 3923#elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
988174c1
LW		 3924# define vtohl(x) ((((x)&0xFF)<<24) \
3925 +(((x)>>24)&0xFF) \
3926 +(((x)&0x0000FF00)<<8) \
3927 +(((x)&0x00FF0000)>>8) )
3928# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3929# define htovl(x) vtohl(x)
3930# define htovs(x) vtohs(x)
545872c5
NC		 3931#else
3932# error "Unsupported byteorder"
3933/* If you have need for current perl on PDP-11 or similar, and can help test
3934 that blead keeps working on a mixed-endian system, then see
3935 pod/perlhack.pod for how to submit patches to things working again. */
2a8c3029 3936#endif
988174c1 3937
3bb7c1b4
JH		 3938/* *MAX Plus 1. A floating point value.
3939 Hopefully expressed in a way that dodgy floating point can't mess up.
3940 >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3941 is added to it
3942 May find that some broken compiler will want the value cast to I32.
3943 [after the shift, as signed >> may not be as secure as unsigned >>]
3944*/
3945#define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3946#define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3947/* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3948 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3949 may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3950*/
3951#define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
ee0007ab 3952
3bb7c1b4
JH		 3953#define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3954#define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3955#define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3956
3957/* This may look like unnecessary jumping through hoops, but converting
3958 out of range floating point values to integers *is* undefined behaviour,
3959 and it is starting to bite.
3960*/
3961#ifndef CAST_INLINE
65202027 3962#define I_32(what) (cast_i32((NV)(what)))
3bb7c1b4 3963#define U_32(what) (cast_ulong((NV)(what)))
65202027
DS		 3964#define I_V(what) (cast_iv((NV)(what)))
3965#define U_V(what) (cast_uv((NV)(what)))
3bb7c1b4
JH		 3966#else
3967#define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3968 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3969 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3970#define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3971 : ((n) < U32_MAX_P1 ? (U32) (n) \
3972 : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
5d9574c1
DM		 3973#define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \
3974 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \
3bb7c1b4 3975 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
5d9574c1
DM		 3976#define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \
3977 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \
3bb7c1b4
JH		 3978 : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3979#endif
3980
3981#define U_S(what) ((U16)U_32(what))
3982#define U_I(what) ((unsigned int)U_32(what))
3983#define U_L(what) U_32(what)
ed6116ce 3984
ed140128
AD		 3985#ifdef HAS_SIGNBIT
3986# define Perl_signbit signbit
3987#endif
3988
2d4389e4
JH		 3989/* These do not care about the fractional part, only about the range. */
3990#define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
24db6c0d 3991#define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2d4389e4 3992
25da4f38
IZ		 3993/* Used with UV/IV arguments: */
3994 /* XXXX: need to speed it up */
3995#define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv))
3996#define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3997
352d5a3a
LW		 3998#ifndef MAXSYSFD
3999# define MAXSYSFD 2
4000#endif
ee0007ab 4001
79072805 4002#ifndef __cplusplus
e37d7e38 4003#if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN))
20ce7b12
GS		 4004Uid_t getuid (void);
4005Uid_t geteuid (void);
4006Gid_t getgid (void);
4007Gid_t getegid (void);
79072805 4008#endif
e1caacb4 4009#endif
8d063cd8 4010
0c30d9ec 4011#ifndef Perl_debug_log
bf49b057
GS		 4012# define Perl_debug_log PerlIO_stderr()
4013#endif
4014
4015#ifndef Perl_error_log
4016# define Perl_error_log (PL_stderrgv \
6b78add2 4017 && isGV(PL_stderrgv) \
01bb7c6d 4018 && GvIOp(PL_stderrgv) \
42de951c 4019 && IoOFP(GvIOp(PL_stderrgv)) \
bf49b057
GS		 4020 ? IoOFP(GvIOp(PL_stderrgv)) \
4021 : PerlIO_stderr())
0c30d9ec 4022#endif
3967c732 4023
aea4f609
DM		 4024
4025#define DEBUG_p_FLAG 0x00000001 /* 1 */
4026#define DEBUG_s_FLAG 0x00000002 /* 2 */
4027#define DEBUG_l_FLAG 0x00000004 /* 4 */
4028#define DEBUG_t_FLAG 0x00000008 /* 8 */
4029#define DEBUG_o_FLAG 0x00000010 /* 16 */
4030#define DEBUG_c_FLAG 0x00000020 /* 32 */
4031#define DEBUG_P_FLAG 0x00000040 /* 64 */
4032#define DEBUG_m_FLAG 0x00000080 /* 128 */
4033#define DEBUG_f_FLAG 0x00000100 /* 256 */
4034#define DEBUG_r_FLAG 0x00000200 /* 512 */
4035#define DEBUG_x_FLAG 0x00000400 /* 1024 */
4036#define DEBUG_u_FLAG 0x00000800 /* 2048 */
88d2d28a
JC		 4037/* U is reserved for Unofficial, exploratory hacking */
4038#define DEBUG_U_FLAG 0x00001000 /* 4096 */
aea4f609
DM		 4039#define DEBUG_H_FLAG 0x00002000 /* 8192 */
4040#define DEBUG_X_FLAG 0x00004000 /* 16384 */
4041#define DEBUG_D_FLAG 0x00008000 /* 32768 */
56967202 4042#define DEBUG_S_FLAG 0x00010000 /* 65536 */
aea4f609 4043#define DEBUG_T_FLAG 0x00020000 /* 131072 */
04932ac8 4044#define DEBUG_R_FLAG 0x00040000 /* 262144 */
1045810a 4045#define DEBUG_J_FLAG 0x00080000 /* 524288 */
d6721266 4046#define DEBUG_v_FLAG 0x00100000 /*1048576 */
46187eeb 4047#define DEBUG_C_FLAG 0x00200000 /*2097152 */
ecae49c0 4048#define DEBUG_A_FLAG 0x00400000 /*4194304 */
a3c98653 4049#define DEBUG_q_FLAG 0x00800000 /*8388608 */
cc8773c0
CS		 4050#define DEBUG_M_FLAG 0x01000000 /*16777216*/
4051#define DEBUG_B_FLAG 0x02000000 /*33554432*/
69014004
KW		 4052#define DEBUG_L_FLAG 0x04000000 /*67108864*/
4053#define DEBUG_MASK 0x07FFEFFF /* mask of all the standard flags */
aea4f609
DM		 4054
4055#define DEBUG_DB_RECURSE_FLAG 0x40000000
31ada1fb 4056#define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */
aea4f609 4057
bd16a5f0
IZ		 4058# define DEBUG_p_TEST_ (PL_debug & DEBUG_p_FLAG)
4059# define DEBUG_s_TEST_ (PL_debug & DEBUG_s_FLAG)
4060# define DEBUG_l_TEST_ (PL_debug & DEBUG_l_FLAG)
4061# define DEBUG_t_TEST_ (PL_debug & DEBUG_t_FLAG)
4062# define DEBUG_o_TEST_ (PL_debug & DEBUG_o_FLAG)
4063# define DEBUG_c_TEST_ (PL_debug & DEBUG_c_FLAG)
4064# define DEBUG_P_TEST_ (PL_debug & DEBUG_P_FLAG)
4065# define DEBUG_m_TEST_ (PL_debug & DEBUG_m_FLAG)
4066# define DEBUG_f_TEST_ (PL_debug & DEBUG_f_FLAG)
4067# define DEBUG_r_TEST_ (PL_debug & DEBUG_r_FLAG)
4068# define DEBUG_x_TEST_ (PL_debug & DEBUG_x_FLAG)
4069# define DEBUG_u_TEST_ (PL_debug & DEBUG_u_FLAG)
88d2d28a 4070# define DEBUG_U_TEST_ (PL_debug & DEBUG_U_FLAG)
bd16a5f0
IZ		 4071# define DEBUG_H_TEST_ (PL_debug & DEBUG_H_FLAG)
4072# define DEBUG_X_TEST_ (PL_debug & DEBUG_X_FLAG)
4073# define DEBUG_D_TEST_ (PL_debug & DEBUG_D_FLAG)
56967202 4074# define DEBUG_S_TEST_ (PL_debug & DEBUG_S_FLAG)
bd16a5f0
IZ		 4075# define DEBUG_T_TEST_ (PL_debug & DEBUG_T_FLAG)
4076# define DEBUG_R_TEST_ (PL_debug & DEBUG_R_FLAG)
1045810a 4077# define DEBUG_J_TEST_ (PL_debug & DEBUG_J_FLAG)
d6721266 4078# define DEBUG_v_TEST_ (PL_debug & DEBUG_v_FLAG)
46187eeb 4079# define DEBUG_C_TEST_ (PL_debug & DEBUG_C_FLAG)
ecae49c0
NC		 4080# define DEBUG_A_TEST_ (PL_debug & DEBUG_A_FLAG)
4081# define DEBUG_q_TEST_ (PL_debug & DEBUG_q_FLAG)
d7c0d282 4082# define DEBUG_M_TEST_ (PL_debug & DEBUG_M_FLAG)
cc8773c0 4083# define DEBUG_B_TEST_ (PL_debug & DEBUG_B_FLAG)
69014004 4084# define DEBUG_L_TEST_ (PL_debug & DEBUG_L_FLAG)
dd2155a4 4085# define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
7949c6f5 4086# define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
ad9e76a8 4087# define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_)
bbc98134 4088# define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_)
bd16a5f0 4089
3967c732 4090#ifdef DEBUGGING
aea4f609 4091
bd16a5f0
IZ		 4092# define DEBUG_p_TEST DEBUG_p_TEST_
4093# define DEBUG_s_TEST DEBUG_s_TEST_
4094# define DEBUG_l_TEST DEBUG_l_TEST_
4095# define DEBUG_t_TEST DEBUG_t_TEST_
4096# define DEBUG_o_TEST DEBUG_o_TEST_
4097# define DEBUG_c_TEST DEBUG_c_TEST_
4098# define DEBUG_P_TEST DEBUG_P_TEST_
4099# define DEBUG_m_TEST DEBUG_m_TEST_
4100# define DEBUG_f_TEST DEBUG_f_TEST_
4101# define DEBUG_r_TEST DEBUG_r_TEST_
4102# define DEBUG_x_TEST DEBUG_x_TEST_
4103# define DEBUG_u_TEST DEBUG_u_TEST_
88d2d28a 4104# define DEBUG_U_TEST DEBUG_U_TEST_
bd16a5f0
IZ		 4105# define DEBUG_H_TEST DEBUG_H_TEST_
4106# define DEBUG_X_TEST DEBUG_X_TEST_
4107# define DEBUG_D_TEST DEBUG_D_TEST_
56967202 4108# define DEBUG_S_TEST DEBUG_S_TEST_
bd16a5f0
IZ		 4109# define DEBUG_T_TEST DEBUG_T_TEST_
4110# define DEBUG_R_TEST DEBUG_R_TEST_
1045810a 4111# define DEBUG_J_TEST DEBUG_J_TEST_
d6721266 4112# define DEBUG_v_TEST DEBUG_v_TEST_
46187eeb 4113# define DEBUG_C_TEST DEBUG_C_TEST_
ecae49c0 4114# define DEBUG_A_TEST DEBUG_A_TEST_
a3c98653 4115# define DEBUG_q_TEST DEBUG_q_TEST_
d7c0d282 4116# define DEBUG_M_TEST DEBUG_M_TEST_
cc8773c0 4117# define DEBUG_B_TEST DEBUG_B_TEST_
69014004 4118# define DEBUG_L_TEST DEBUG_L_TEST_
7949c6f5
JC		 4119# define DEBUG_Xv_TEST DEBUG_Xv_TEST_
4120# define DEBUG_Uv_TEST DEBUG_Uv_TEST_
ad9e76a8 4121# define DEBUG_Pv_TEST DEBUG_Pv_TEST_
bbc98134 4122# define DEBUG_Lv_TEST DEBUG_Lv_TEST_
aea4f609 4123
488b0c7a 4124# define PERL_DEB(a) a
11f9ab1a 4125# define PERL_DEB2(a,b) a
488b0c7a 4126# define PERL_DEBUG(a) if (PL_debug) a
aea4f609
DM		 4127# define DEBUG_p(a) if (DEBUG_p_TEST) a
4128# define DEBUG_s(a) if (DEBUG_s_TEST) a
4129# define DEBUG_l(a) if (DEBUG_l_TEST) a
4130# define DEBUG_t(a) if (DEBUG_t_TEST) a
4131# define DEBUG_o(a) if (DEBUG_o_TEST) a
4132# define DEBUG_c(a) if (DEBUG_c_TEST) a
4133# define DEBUG_P(a) if (DEBUG_P_TEST) a
4134
969058bb
VK		 4135 /* Temporarily turn off memory debugging in case the a
4136 * does memory allocation, either directly or indirectly. */
acfe0abc 4137# define DEBUG_m(a) \
0b250b9e 4138 STMT_START { \
aea4f609 4139 if (PERL_GET_INTERP) { dTHX; if (DEBUG_m_TEST) {PL_debug&=~DEBUG_m_FLAG; a; PL_debug|=DEBUG_m_FLAG;} } \
0b250b9e 4140 } STMT_END
aea4f609 4141
5f80b19c
AMS		 4142# define DEBUG__(t, a) \
4143 STMT_START { \
4144 if (t) STMT_START {a;} STMT_END; \
4145 } STMT_END
4146
4147# define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
f9f4320a 4148#ifndef PERL_EXT_RE_BUILD
5f80b19c 4149# define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
f9f4320a
YO		 4150#else
4151# define DEBUG_r(a) STMT_START {a;} STMT_END
4152#endif /* PERL_EXT_RE_BUILD */
5f80b19c
AMS		 4153# define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
4154# define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
88d2d28a 4155# define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
5f80b19c
AMS		 4156# define DEBUG_H(a) DEBUG__(DEBUG_H_TEST, a)
4157# define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
4158# define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
7949c6f5
JC		 4159# define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
4160# define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
ad9e76a8 4161# define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a)
bbc98134 4162# define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a)
aea4f609 4163
56967202 4164# define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a)
5f80b19c
AMS		 4165# define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
4166# define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
d6721266 4167# define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
46187eeb 4168# define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
ecae49c0
NC		 4169# define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
4170# define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
d7c0d282 4171# define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a)
cc8773c0 4172# define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a)
69014004 4173# define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a)
aea4f609
DM		 4174
4175#else /* DEBUGGING */
4176
4177# define DEBUG_p_TEST (0)
4178# define DEBUG_s_TEST (0)
4179# define DEBUG_l_TEST (0)
4180# define DEBUG_t_TEST (0)
4181# define DEBUG_o_TEST (0)
4182# define DEBUG_c_TEST (0)
4183# define DEBUG_P_TEST (0)
4184# define DEBUG_m_TEST (0)
4185# define DEBUG_f_TEST (0)
4186# define DEBUG_r_TEST (0)
4187# define DEBUG_x_TEST (0)
4188# define DEBUG_u_TEST (0)
88d2d28a 4189# define DEBUG_U_TEST (0)
aea4f609
DM		 4190# define DEBUG_H_TEST (0)
4191# define DEBUG_X_TEST (0)
4192# define DEBUG_D_TEST (0)
56967202 4193# define DEBUG_S_TEST (0)
aea4f609 4194# define DEBUG_T_TEST (0)
04932ac8 4195# define DEBUG_R_TEST (0)
1045810a 4196# define DEBUG_J_TEST (0)
d6721266 4197# define DEBUG_v_TEST (0)
46187eeb 4198# define DEBUG_C_TEST (0)
ecae49c0
NC		 4199# define DEBUG_A_TEST (0)
4200# define DEBUG_q_TEST (0)
d7c0d282 4201# define DEBUG_M_TEST (0)
cc8773c0 4202# define DEBUG_B_TEST (0)
69014004 4203# define DEBUG_L_TEST (0)
7949c6f5
JC		 4204# define DEBUG_Xv_TEST (0)
4205# define DEBUG_Uv_TEST (0)
ad9e76a8 4206# define DEBUG_Pv_TEST (0)
bbc98134 4207# define DEBUG_Lv_TEST (0)
aea4f609 4208
488b0c7a 4209# define PERL_DEB(a)
11f9ab1a 4210# define PERL_DEB2(a,b) b
488b0c7a 4211# define PERL_DEBUG(a)
aea4f609
DM		 4212# define DEBUG_p(a)
4213# define DEBUG_s(a)
4214# define DEBUG_l(a)
4215# define DEBUG_t(a)
4216# define DEBUG_o(a)
4217# define DEBUG_c(a)
4218# define DEBUG_P(a)
4219# define DEBUG_m(a)
4220# define DEBUG_f(a)
4221# define DEBUG_r(a)
4222# define DEBUG_x(a)
4223# define DEBUG_u(a)
88d2d28a 4224# define DEBUG_U(a)
aea4f609
DM		 4225# define DEBUG_H(a)
4226# define DEBUG_X(a)
4227# define DEBUG_D(a)
56967202 4228# define DEBUG_S(a)
aea4f609 4229# define DEBUG_T(a)
04932ac8 4230# define DEBUG_R(a)
d6721266 4231# define DEBUG_v(a)
46187eeb 4232# define DEBUG_C(a)
ecae49c0
NC		 4233# define DEBUG_A(a)
4234# define DEBUG_q(a)
d7c0d282 4235# define DEBUG_M(a)
cc8773c0 4236# define DEBUG_B(a)
69014004 4237# define DEBUG_L(a)
7949c6f5
JC		 4238# define DEBUG_Xv(a)
4239# define DEBUG_Uv(a)
ad9e76a8 4240# define DEBUG_Pv(a)
bbc98134 4241# define DEBUG_Lv(a)
aea4f609
DM		 4242#endif /* DEBUGGING */
4243
4244
b4ab917c 4245#define DEBUG_SCOPE(where) \
d9f81b50 4246 DEBUG_l( \
1c98cc53
DM		 4247 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \
4248 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \
d9f81b50 4249 __FILE__, __LINE__));
b4ab917c 4250
de84dc04 4251/* Keep the old croak based assert for those who want it, and as a fallback if
27ceb597 4252 the platform is so heretically non-ANSI that it can't assert. */
14befaf4 4253
11f9ab1a 4254#define Perl_assert(what) PERL_DEB2( \
2b057284 4255 ((what) ? ((void) 0) : \
67eb4d30 4256 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
60b9f5a7 4257 "\", line %d", STRINGIFY(what), __LINE__), \
11f9ab1a 4258 (void) 0)), ((void)0))
de84dc04 4259
81d52ecd
JH		 4260/* assert() gets defined if DEBUGGING (and I_ASSERT).
4261 * If no DEBUGGING, the <assert.h> has not been included. */
de84dc04
NC		 4262#ifndef assert
4263# define assert(what) Perl_assert(what)
a446a88f 4264#endif
c7724415
FC		 4265#ifdef DEBUGGING
4266# define assert_(what) assert(what),
4267#else
4268# define assert_(what)
4269#endif
8d063cd8 4270
450a55e4 4271struct ufuncs {
24f81a43
DM		 4272 I32 (*uf_val)(pTHX_ IV, SV*);
4273 I32 (*uf_set)(pTHX_ IV, SV*);
a0d0e21e 4274 IV uf_index;
450a55e4
LW		 4275};
4276
14befaf4 4277/* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
24f81a43
DM		 4278 * XS code wanting to be backward compatible can do something
4279 * like the following:
c745e42c 4280
24f81a43 4281#ifndef PERL_MG_UFUNC
24f81a43
DM		 4282#define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
4283#endif
4284
4285static PERL_MG_UFUNC(foo_get, index, val)
4286{
4287 sv_setsv(val, ...);
4288 return TRUE;
4289}
4290
4291-- Doug MacEachern
4292
4293*/
4294
fc9c74e6 4295#ifndef PERL_MG_UFUNC
24f81a43 4296#define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
fc9c74e6 4297#endif
24f81a43 4298
fe14fcc3 4299/* Fix these up for __STDC__ */
68dc0745 4300#ifndef DONT_DECLARE_STD
20ce7b12 4301char *mktemp (char*);
37bd1396 4302#ifndef atof
20ce7b12 4303double atof (const char*);
a0d0e21e 4304#endif
37bd1396 4305#endif
79072805 4306
352d5a3a 4307#ifndef STANDARD_C
fe14fcc3 4308/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 4309Time_t time();
8d063cd8 4310struct tm *gmtime(), *localtime();
043fec90 4311#if defined(OEMVS)
9d116dd7
JH		 4312char *(strchr)(), *(strrchr)();
4313char *(strcpy)(), *(strcat)();
4314#else
93a17b20 4315char *strchr(), *strrchr();
378cc40b 4316char *strcpy(), *strcat();
9d116dd7 4317#endif
352d5a3a 4318#endif /* ! STANDARD_C */
8d063cd8 4319
79072805
LW		 4320
4321#ifdef I_MATH
4322# include <math.h>
a80f53e7
CB		 4323# ifdef __VMS
4324 /* isfinite and others are here rather than in math.h as C99 stipulates */
4325# include <fp.h>
4326# endif
79072805 4327#else
32f822de 4328START_EXTERN_C
20ce7b12
GS		 4329 double exp (double);
4330 double log (double);
4331 double log10 (double);
4332 double sqrt (double);
4333 double frexp (double,int*);
4334 double ldexp (double,int);
4335 double modf (double,double*);
4336 double sin (double);
4337 double cos (double);
4338 double atan2 (double,double);
4339 double pow (double,double);
32f822de 4340END_EXTERN_C
79072805
LW		 4341#endif
4342
a0d0e21e 4343#ifndef __cplusplus
f05550c0 4344# if !defined(WIN32) && !defined(VMS)
10bc17b6 4345#ifndef crypt
20ce7b12 4346char *crypt (const char*, const char*);
10bc17b6 4347#endif
f05550c0 4348# endif /* !WIN32 */
26618a56
GS		 4349# ifndef DONT_DECLARE_STD
4350# ifndef getenv
20ce7b12 4351char *getenv (const char*);
26618a56 4352# endif /* !getenv */
739a0b84 4353# if !defined(HAS_LSEEK_PROTO) && !defined(__hpux)
0fc67700 4354# ifdef _FILE_OFFSET_BITS
28ca6303 4355# if _FILE_OFFSET_BITS == 64
20ce7b12 4356Off_t lseek (int,Off_t,int);
0fc67700
JH		 4357# endif
4358# endif
bf0c440f 4359# endif
26618a56 4360# endif /* !DONT_DECLARE_STD */
e37d7e38
SH		 4361# ifndef WIN32
4362# ifndef getlogin
20ce7b12 4363char *getlogin (void);
e37d7e38
SH		 4364# endif
4365# endif /* !WIN32 */
26618a56 4366#endif /* !__cplusplus */
79072805 4367
7a7fd8e0
JM		 4368/* Fixme on VMS. This needs to be a run-time, not build time options */
4369/* Also rename() is affected by this */
16d20bd9 4370#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 4371#define UNLINK unlnk
083639a9 4372I32 unlnk (pTHX_ const char*);
8d063cd8 4373#else
80252599 4374#define UNLINK PerlLIO_unlink
8d063cd8 4375#endif
a687059c 4376
fa0a29af
JH		 4377/* some versions of glibc are missing the setresuid() proto */
4378#if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
640374d0
JH		 4379int setresuid(uid_t ruid, uid_t euid, uid_t suid);
4380#endif
fa0a29af
JH		 4381/* some versions of glibc are missing the setresgid() proto */
4382#if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
640374d0
JH		 4383int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
4384#endif
4385
fe14fcc3 4386#ifndef HAS_SETREUID
85e6fe83
LW		 4387# ifdef HAS_SETRESUID
4388# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
4389# define HAS_SETREUID
4390# endif
a687059c 4391#endif
fe14fcc3 4392#ifndef HAS_SETREGID
85e6fe83
LW		 4393# ifdef HAS_SETRESGID
4394# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
4395# define HAS_SETREGID
4396# endif
a687059c 4397#endif
ee0007ab 4398
d543acb6 4399/* Sighandler_t defined in iperlsys.h */
ff68c719 4400
4401#ifdef HAS_SIGACTION
4402typedef struct sigaction Sigsave_t;
4403#else
4404typedef Sighandler_t Sigsave_t;
4405#endif
4406
ee0007ab
LW		 4407#define SCAN_DEF 0
4408#define SCAN_TR 1
4409#define SCAN_REPL 2
79072805
LW		 4410
4411#ifdef DEBUGGING
4633a7c4 4412# ifndef register
a0d0e21e
LW		 4413# define register
4414# endif
cea2e8a9 4415# define RUNOPS_DEFAULT Perl_runops_debug
79072805 4416#else
cea2e8a9 4417# define RUNOPS_DEFAULT Perl_runops_standard
79072805
LW		 4418#endif
4419
97cb92d6 4420#if defined(USE_PERLIO)
0934c9d9 4421EXTERN_C void PerlIO_teardown(void);
2f44961c 4422# ifdef USE_ITHREADS
6cb8cb21
RGS		 4423# define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
4424# define PERLIO_TERM \
4425 STMT_START { \
d0820ef1 4426 PerlIO_teardown(); \
6cb8cb21
RGS		 4427 MUTEX_DESTROY(&PL_perlio_mutex);\
4428 } STMT_END
4429# else
4430# define PERLIO_INIT
d0820ef1 4431# define PERLIO_TERM PerlIO_teardown()
6cb8cb21 4432# endif
6b29934b
NC		 4433#else
4434# define PERLIO_INIT
4435# define PERLIO_TERM
6cb8cb21
RGS		 4436#endif
4437
18f739ee 4438#ifdef MYMALLOC
772fe5b3 4439# ifdef MUTEX_INIT_CALLS_MALLOC
3541dd58
HM		 4440# define MALLOC_INIT \
4441 STMT_START { \
4442 PL_malloc_mutex = NULL; \
4443 MUTEX_INIT(&PL_malloc_mutex); \
4444 } STMT_END
4445# define MALLOC_TERM \
4446 STMT_START { \
4447 perl_mutex tmp = PL_malloc_mutex; \
4448 PL_malloc_mutex = NULL; \
4449 MUTEX_DESTROY(&tmp); \
4450 } STMT_END
4451# else
4452# define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4453# define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4454# endif
18f739ee
IZ		 4455#else
4456# define MALLOC_INIT
4457# define MALLOC_TERM
4458#endif
4459
cd1541b2 4460#if defined(PERL_IMPLICIT_CONTEXT)
7cb608b5
NC		 4461
4462struct perl_memory_debug_header;
cd1541b2
NC		 4463struct perl_memory_debug_header {
4464 tTHX interpreter;
b001a0d1 4465# if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW)
cd1541b2 4466 MEM_SIZE size;
cd1541b2 4467# endif
7cb608b5
NC		 4468 struct perl_memory_debug_header *prev;
4469 struct perl_memory_debug_header *next;
b001a0d1
FC		 4470# ifdef PERL_DEBUG_READONLY_COW
4471 bool readonly;
4472# endif
4473};
4474
4475#elif defined(PERL_DEBUG_READONLY_COW)
4476
4477struct perl_memory_debug_header;
4478struct perl_memory_debug_header {
4479 MEM_SIZE size;
cd1541b2
NC		 4480};
4481
b001a0d1
FC		 4482#endif
4483
60175f94 4484#if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW)
b001a0d1 4485
a78adc84
DM		 4486# define PERL_MEMORY_DEBUG_HEADER_SIZE \
4487 (sizeof(struct perl_memory_debug_header) + \
cd1541b2
NC		 4488 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4489 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4490
d8fca402 4491#else
a78adc84 4492# define PERL_MEMORY_DEBUG_HEADER_SIZE 0
cd1541b2
NC		 4493#endif
4494
7cb608b5 4495#ifdef PERL_TRACK_MEMPOOL
b001a0d1 4496# ifdef PERL_DEBUG_READONLY_COW
7cb608b5
NC		 4497# define INIT_TRACK_MEMPOOL(header, interp) \
4498 STMT_START { \
4499 (header).interpreter = (interp); \
4500 (header).prev = (header).next = &(header); \
b001a0d1 4501 (header).readonly = 0; \
7cb608b5 4502 } STMT_END
b001a0d1
FC		 4503# else
4504# define INIT_TRACK_MEMPOOL(header, interp) \
4505 STMT_START { \
4506 (header).interpreter = (interp); \
4507 (header).prev = (header).next = &(header); \
4508 } STMT_END
4509# endif
4510# else
7cb608b5
NC		 4511# define INIT_TRACK_MEMPOOL(header, interp)
4512#endif
4513
1cd66f7c
DD		 4514#ifdef I_MALLOCMALLOC
4515/* Needed for malloc_size(), malloc_good_size() on some systems */
4516# include <malloc/malloc.h>
4517#endif
4518
ca7c1a29
NC		 4519#ifdef MYMALLOC
4520# define Perl_safesysmalloc_size(where) Perl_malloced_size(where)
cfe52898 4521#else
b001a0d1 4522# if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW)
e82be400 4523# ifdef PERL_TRACK_MEMPOOL
cfe52898 4524# define Perl_safesysmalloc_size(where) \
a78adc84 4525 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4526# else
4527# define Perl_safesysmalloc_size(where) malloc_size(where)
4528# endif
4529# endif
4530# ifdef HAS_MALLOC_GOOD_SIZE
4531# ifdef PERL_TRACK_MEMPOOL
d8fca402 4532# define Perl_malloc_good_size(how_much) \
a78adc84 4533 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE)
e82be400
NC		 4534# else
4535# define Perl_malloc_good_size(how_much) malloc_good_size(how_much)
4536# endif
4537# else
d8fca402
NC		 4538/* Having this as the identity operation makes some code simpler. */
4539# define Perl_malloc_good_size(how_much) (how_much)
e82be400 4540# endif
ca7c1a29 4541#endif
b6d9d515 4542
16c91539
BM		 4543typedef int (*runops_proc_t)(pTHX);
4544typedef void (*share_proc_t) (pTHX_ SV *sv);
4545typedef int (*thrhook_proc_t) (pTHX);
4546typedef OP* (*PPADDR_t[]) (pTHX);
4547typedef bool (*destroyable_proc_t) (pTHX_ SV *sv);
4548typedef void (*despatch_signals_proc_t) (pTHX);
22c35a8c 4549
f05550c0
BF		 4550#if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE)
4551# include <crt_externs.h> /* for the env array */
4552# define environ (*_NSGetEnviron())
8f1f23e8
W		 4553#else
4554 /* VMS and some other platforms don't use the environ array */
13b6e58c 4555# ifdef USE_ENVIRON_ARRAY
a6c40364 4556# if !defined(DONT_DECLARE_STD) || \
bdea967c 4557 (defined(__svr4__) && defined(__GNUC__) && defined(__sun)) || \
8d87852b 4558 defined(__sgi)
8f1f23e8 4559extern char ** environ; /* environment variables supplied via exec */
a6c40364 4560# endif
8f1f23e8
W		 4561# endif
4562#endif
79072805 4563
457c5385
NC		 4564#define PERL_PATCHLEVEL_H_IMPLICIT
4565#include "patchlevel.h"
4566#undef PERL_PATCHLEVEL_H_IMPLICIT
4567
4568#define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \
4569 STRINGIFY(PERL_VERSION) "." \
4570 STRINGIFY(PERL_SUBVERSION)
4571
4572#define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \
4573 STRINGIFY(PERL_API_VERSION) "." \
4574 STRINGIFY(PERL_API_SUBVERSION)
4575
73c4f7a1
GS		 4576START_EXTERN_C
4577
79072805 4578/* handy constants */
22c35a8c 4579EXTCONST char PL_warn_uninit[]
29489e7c 4580 INIT("Use of uninitialized value%s%s%s");
fef7e7a0 4581EXTCONST char PL_warn_uninit_sv[]
61608bb7 4582 INIT("Use of uninitialized value%" SVf "%s%s");
22c35a8c 4583EXTCONST char PL_warn_nosemi[]
463ee0b2 4584 INIT("Semicolon seems to be missing");
22c35a8c 4585EXTCONST char PL_warn_reserved[]
463ee0b2 4586 INIT("Unquoted string \"%s\" may clash with future reserved word");
22c35a8c 4587EXTCONST char PL_warn_nl[]
93a17b20 4588 INIT("Unsuccessful %s on filename containing newline");
22c35a8c 4589EXTCONST char PL_no_wrongref[]
a0d0e21e 4590 INIT("Can't use %s ref as %s ref");
fedf30e1 4591/* The core no longer needs this here. If you require the string constant,
def89bff 4592 please inline a copy into your own code. */
973a7615
NC		 4593EXTCONST char PL_no_symref[] __attribute__deprecated__
4594 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
fedf30e1
DM		 4595EXTCONST char PL_no_symref_sv[]
4596 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use");
4597
22c35a8c 4598EXTCONST char PL_no_usym[]
8990e307 4599 INIT("Can't use an undefined value as %s reference");
22c35a8c 4600EXTCONST char PL_no_aelem[]
93a17b20 4601 INIT("Modification of non-creatable array value attempted, subscript %d");
ce5030a2 4602EXTCONST char PL_no_helem_sv[]
61608bb7 4603 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\"");
22c35a8c 4604EXTCONST char PL_no_modify[]
93a17b20 4605 INIT("Modification of a read-only value attempted");
4cbe3a7d 4606EXTCONST char PL_no_mem[sizeof("Out of memory!\n")]
93a17b20 4607 INIT("Out of memory!\n");
22c35a8c 4608EXTCONST char PL_no_security[]
463ee0b2 4609 INIT("Insecure dependency in %s%s");
22c35a8c 4610EXTCONST char PL_no_sock_func[]
93a17b20 4611 INIT("Unsupported socket function \"%s\" called");
22c35a8c 4612EXTCONST char PL_no_dir_func[]
93a17b20 4613 INIT("Unsupported directory function \"%s\" called");
22c35a8c 4614EXTCONST char PL_no_func[]
93a17b20 4615 INIT("The %s function is unimplemented");
22c35a8c 4616EXTCONST char PL_no_myglob[]
a21eb52b 4617 INIT("\"%s\" %se %s can't be in a package");
82d03984
RGS		 4618EXTCONST char PL_no_localize_ref[]
4619 INIT("Can't localize through a reference");
27d5b266
JH		 4620EXTCONST char PL_memory_wrap[]
4621 INIT("panic: memory wrap");
93a17b20 4622
58f645e2
NC		 4623EXTCONST char PL_Yes[]
4624 INIT("1");
4625EXTCONST char PL_No[]
4626 INIT("");
4627EXTCONST char PL_hexdigit[]
4628 INIT("0123456789abcdef0123456789ABCDEF");
4629
0447859b
NC		 4630/* This is constant on most architectures, a global on OS/2 */
4631#ifndef OS2
4632EXTCONST char PL_sh_path[]
4633 INIT(SH_PATH); /* full path of shell */
4634#endif
4635
618b9757
NC		 4636#ifdef CSH
4637EXTCONST char PL_cshname[]
4638 INIT(CSH);
4639# define PL_cshlen (sizeof(CSH "") - 1)
4640#endif
4641
457c5385
NC		 4642/* These are baked at compile time into any shared perl library.
4643 In future releases this will allow us in main() to sanity test the
4644 library we're linking against. */
4645
4646EXTCONST U8 PL_revision
4647 INIT(PERL_REVISION);
4648EXTCONST U8 PL_version
4649 INIT(PERL_VERSION);
4650EXTCONST U8 PL_subversion
4651 INIT(PERL_SUBVERSION);
4652
7575fa06 4653EXTCONST char PL_uuemap[65]
80252599
GS		 4654 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4655
79072805 4656#ifdef DOINIT
9444d213 4657EXTCONST char PL_uudmap[256] =
dde5ec2c
NC		 4658# ifdef PERL_MICRO
4659# include "uuudmap.h"
4660# else
4661# include "uudmap.h"
4662# endif
9444d213 4663;
efa50c51 4664EXTCONST char PL_bitcount[256] =
dde5ec2c
NC		 4665# ifdef PERL_MICRO
4666# include "ubitcount.h"
4667#else
4668# include "bitcount.h"
4669# endif
efa50c51 4670;
27da23d5
JH		 4671EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4672EXTCONST int PL_sig_num[] = { SIG_NUM };
79072805 4673#else
9444d213 4674EXTCONST char PL_uudmap[256];
efa50c51 4675EXTCONST char PL_bitcount[256];
27da23d5
JH		 4676EXTCONST char* const PL_sig_name[];
4677EXTCONST int PL_sig_num[];
79072805
LW		 4678#endif
4679
6d8e7a01
KW		 4680/* fast conversion and case folding tables. The folding tables complement the
4681 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated
4682 * folds such as outside the range or to multiple characters. */
bbce6d69 4683
79072805 4684#ifdef DOINIT
d02f4dad
KW		 4685#ifndef EBCDIC
4686
4687/* The EBCDIC fold table depends on the code page, and hence is found in
4688 * utfebcdic.h */
4689
22c35a8c 4690EXTCONST unsigned char PL_fold[] = {
79072805
LW		 4691 0, 1, 2, 3, 4, 5, 6, 7,
4692 8, 9, 10, 11, 12, 13, 14, 15,
4693 16, 17, 18, 19, 20, 21, 22, 23,
4694 24, 25, 26, 27, 28, 29, 30, 31,
4695 32, 33, 34, 35, 36, 37, 38, 39,
4696 40, 41, 42, 43, 44, 45, 46, 47,
4697 48, 49, 50, 51, 52, 53, 54, 55,
4698 56, 57, 58, 59, 60, 61, 62, 63,
4699 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4700 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4701 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4702 'x', 'y', 'z', 91, 92, 93, 94, 95,
4703 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4704 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4705 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4706 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4707 128, 129, 130, 131, 132, 133, 134, 135,
4708 136, 137, 138, 139, 140, 141, 142, 143,
4709 144, 145, 146, 147, 148, 149, 150, 151,
4710 152, 153, 154, 155, 156, 157, 158, 159,
4711 160, 161, 162, 163, 164, 165, 166, 167,
4712 168, 169, 170, 171, 172, 173, 174, 175,
4713 176, 177, 178, 179, 180, 181, 182, 183,
4714 184, 185, 186, 187, 188, 189, 190, 191,
4715 192, 193, 194, 195, 196, 197, 198, 199,
4716 200, 201, 202, 203, 204, 205, 206, 207,
4717 208, 209, 210, 211, 212, 213, 214, 215,
4718 216, 217, 218, 219, 220, 221, 222, 223,
4719 224, 225, 226, 227, 228, 229, 230, 231,
4720 232, 233, 234, 235, 236, 237, 238, 239,
4721 240, 241, 242, 243, 244, 245, 246, 247,
4722 248, 249, 250, 251, 252, 253, 254, 255
4723};
3871f40b
KW		 4724EXTCONST unsigned char PL_fold_latin1[] = {
4725 /* Full latin1 complement folding, except for three problematic code points:
4726 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their
4727 * fold complements outside the Latin1 range, so can't match something
4728 * that isn't in utf8.
4729 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss',
4730 * not one, so can't be represented in this table.
4731 *
4732 * All have to be specially handled */
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 /*micro */, 182, 183,
4756 184, 185, 186, 187, 188, 189, 190, 191,
4757 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4758 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4759 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4760 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */,
4761 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4762 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4763 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4764 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32,
4765 255 /* y with diaeresis */
4766};
00f254e2
KW		 4767
4768/* If these tables are accessed through ebcdic, the access will be converted to
4769 * latin1 first */
4770EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */
4771 0, 1, 2, 3, 4, 5, 6, 7,
4772 8, 9, 10, 11, 12, 13, 14, 15,
4773 16, 17, 18, 19, 20, 21, 22, 23,
4774 24, 25, 26, 27, 28, 29, 30, 31,
4775 32, 33, 34, 35, 36, 37, 38, 39,
4776 40, 41, 42, 43, 44, 45, 46, 47,
4777 48, 49, 50, 51, 52, 53, 54, 55,
4778 56, 57, 58, 59, 60, 61, 62, 63,
4779 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4780 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4781 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4782 'x', 'y', 'z', 91, 92, 93, 94, 95,
4783 96, 97, 98, 99, 100, 101, 102, 103,
4784 104, 105, 106, 107, 108, 109, 110, 111,
4785 112, 113, 114, 115, 116, 117, 118, 119,
4786 120, 121, 122, 123, 124, 125, 126, 127,
4787 128, 129, 130, 131, 132, 133, 134, 135,
4788 136, 137, 138, 139, 140, 141, 142, 143,
4789 144, 145, 146, 147, 148, 149, 150, 151,
4790 152, 153, 154, 155, 156, 157, 158, 159,
4791 160, 161, 162, 163, 164, 165, 166, 167,
4792 168, 169, 170, 171, 172, 173, 174, 175,
4793 176, 177, 178, 179, 180, 181, 182, 183,
4794 184, 185, 186, 187, 188, 189, 190, 191,
4795 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32,
4796 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32,
4797 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215,
4798 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223,
4799 224, 225, 226, 227, 228, 229, 230, 231,
4800 232, 233, 234, 235, 236, 237, 238, 239,
4801 240, 241, 242, 243, 244, 245, 246, 247,
4802 248, 249, 250, 251, 252, 253, 254, 255
4803};
4804
4805/* upper and title case of latin1 characters, modified so that the three tricky
4806 * ones are mapped to 255 (which is one of the three) */
4807EXTCONST unsigned char PL_mod_latin1_uc[] = {
4808 0, 1, 2, 3, 4, 5, 6, 7,
4809 8, 9, 10, 11, 12, 13, 14, 15,
4810 16, 17, 18, 19, 20, 21, 22, 23,
4811 24, 25, 26, 27, 28, 29, 30, 31,
4812 32, 33, 34, 35, 36, 37, 38, 39,
4813 40, 41, 42, 43, 44, 45, 46, 47,
4814 48, 49, 50, 51, 52, 53, 54, 55,
4815 56, 57, 58, 59, 60, 61, 62, 63,
4816 64, 65, 66, 67, 68, 69, 70, 71,
4817 72, 73, 74, 75, 76, 77, 78, 79,
4818 80, 81, 82, 83, 84, 85, 86, 87,
4819 88, 89, 90, 91, 92, 93, 94, 95,
4820 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4821 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4822 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4823 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4824 128, 129, 130, 131, 132, 133, 134, 135,
4825 136, 137, 138, 139, 140, 141, 142, 143,
4826 144, 145, 146, 147, 148, 149, 150, 151,
4827 152, 153, 154, 155, 156, 157, 158, 159,
4828 160, 161, 162, 163, 164, 165, 166, 167,
4829 168, 169, 170, 171, 172, 173, 174, 175,
4830 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183,
4831 184, 185, 186, 187, 188, 189, 190, 191,
4832 192, 193, 194, 195, 196, 197, 198, 199,
4833 200, 201, 202, 203, 204, 205, 206, 207,
4834 208, 209, 210, 211, 212, 213, 214, 215,
79e064b9
KW		 4835 216, 217, 218, 219, 220, 221, 222,
4836#if UNICODE_MAJOR_VERSION > 2 \
4837 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \
4838 && UNICODE_DOT_DOT_VERSION >= 8)
4839 255 /*sharp s*/,
4840#else /* uc() is itself in early unicode */
4841 223,
4842#endif
00f254e2
KW		 4843 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32,
4844 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32,
4845 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247,
4846 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255
4847};
1248eb9d 4848#endif /* !EBCDIC, but still in DOINIT */
00f254e2 4849#else /* ! DOINIT */
1248eb9d 4850# ifndef EBCDIC
22c35a8c 4851EXTCONST unsigned char PL_fold[];
3871f40b 4852EXTCONST unsigned char PL_fold_latin1[];
00f254e2
KW		 4853EXTCONST unsigned char PL_mod_latin1_uc[];
4854EXTCONST unsigned char PL_latin1_lc[];
1248eb9d 4855# endif
79072805
LW		 4856#endif
4857
27da23d5 4858#ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
79072805 4859#ifdef DOINIT
27da23d5 4860EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
79072805
LW		 4861 0, 1, 2, 3, 4, 5, 6, 7,
4862 8, 9, 10, 11, 12, 13, 14, 15,
4863 16, 17, 18, 19, 20, 21, 22, 23,
4864 24, 25, 26, 27, 28, 29, 30, 31,
4865 32, 33, 34, 35, 36, 37, 38, 39,
4866 40, 41, 42, 43, 44, 45, 46, 47,
4867 48, 49, 50, 51, 52, 53, 54, 55,
4868 56, 57, 58, 59, 60, 61, 62, 63,
4869 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
4870 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
4871 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
4872 'x', 'y', 'z', 91, 92, 93, 94, 95,
4873 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
4874 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
4875 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
4876 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
4877 128, 129, 130, 131, 132, 133, 134, 135,
4878 136, 137, 138, 139, 140, 141, 142, 143,
4879 144, 145, 146, 147, 148, 149, 150, 151,
4880 152, 153, 154, 155, 156, 157, 158, 159,
4881 160, 161, 162, 163, 164, 165, 166, 167,
4882 168, 169, 170, 171, 172, 173, 174, 175,
4883 176, 177, 178, 179, 180, 181, 182, 183,
4884 184, 185, 186, 187, 188, 189, 190, 191,
4885 192, 193, 194, 195, 196, 197, 198, 199,
4886 200, 201, 202, 203, 204, 205, 206, 207,
4887 208, 209, 210, 211, 212, 213, 214, 215,
4888 216, 217, 218, 219, 220, 221, 222, 223,
4889 224, 225, 226, 227, 228, 229, 230, 231,
4890 232, 233, 234, 235, 236, 237, 238, 239,
4891 240, 241, 242, 243, 244, 245, 246, 247,
4892 248, 249, 250, 251, 252, 253, 254, 255
4893};
4894#else
27da23d5 4895EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
79072805 4896#endif
27da23d5 4897#endif /* !PERL_GLOBAL_STRUCT */
79072805
LW		 4898
4899#ifdef DOINIT
9d116dd7 4900#ifdef EBCDIC
27da23d5 4901EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
9d116dd7
JH		 4902 1, 2, 84, 151, 154, 155, 156, 157,
4903 165, 246, 250, 3, 158, 7, 18, 29,
4904 40, 51, 62, 73, 85, 96, 107, 118,
4905 129, 140, 147, 148, 149, 150, 152, 153,
4906 255, 6, 8, 9, 10, 11, 12, 13,
4907 14, 15, 24, 25, 26, 27, 28, 226,
4908 29, 30, 31, 32, 33, 43, 44, 45,
4909 46, 47, 48, 49, 50, 76, 77, 78,
4910 79, 80, 81, 82, 83, 84, 85, 86,
4911 87, 94, 95, 234, 181, 233, 187, 190,
4912 180, 96, 97, 98, 99, 100, 101, 102,
4913 104, 112, 182, 174, 236, 232, 229, 103,
4914 228, 226, 114, 115, 116, 117, 118, 119,
4915 120, 121, 122, 235, 176, 230, 194, 162,
4916 130, 131, 132, 133, 134, 135, 136, 137,
4917 138, 139, 201, 205, 163, 217, 220, 224,
4918 5, 248, 227, 244, 242, 255, 241, 231,
4919 240, 253, 16, 197, 19, 20, 21, 187,
4920 23, 169, 210, 245, 237, 249, 247, 239,
4921 168, 252, 34, 196, 36, 37, 38, 39,
4922 41, 42, 251, 254, 238, 223, 221, 213,
4923 225, 177, 52, 53, 54, 55, 56, 57,
4924 58, 59, 60, 61, 63, 64, 65, 66,
4925 67, 68, 69, 70, 71, 72, 74, 75,
4926 205, 208, 186, 202, 200, 218, 198, 179,
4927 178, 214, 88, 89, 90, 91, 92, 93,
4928 217, 166, 170, 207, 199, 209, 206, 204,
4929 160, 212, 105, 106, 108, 109, 110, 111,
4930 203, 113, 216, 215, 192, 175, 193, 243,
4931 172, 161, 123, 124, 125, 126, 127, 128,
4932 222, 219, 211, 195, 188, 193, 185, 184,
4933 191, 183, 141, 142, 143, 144, 145, 146
4934};
4935#else /* ascii rather than ebcdic */
22c35a8c 4936EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 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, 182, 224, 205, 174, 176, 180, 217,
4942 233, 232, 236, 187, 235, 228, 234, 226,
4943 222, 219, 211, 195, 188, 193, 185, 184,
4944 191, 183, 201, 229, 181, 220, 194, 162,
4945 163, 208, 186, 202, 200, 218, 198, 179,
4946 178, 214, 166, 170, 207, 199, 209, 206,
4947 204, 160, 212, 216, 215, 192, 175, 173,
4948 243, 172, 161, 190, 203, 189, 164, 230,
4949 167, 248, 227, 244, 242, 255, 241, 231,
4950 240, 253, 169, 210, 245, 237, 249, 247,
4951 239, 168, 252, 251, 254, 238, 223, 221,
4952 213, 225, 177, 197, 171, 196, 159, 4,
4953 5, 6, 8, 9, 10, 11, 12, 13,
4954 14, 15, 16, 17, 19, 20, 21, 22,
4955 23, 24, 25, 26, 27, 28, 30, 31,
4956 32, 33, 34, 35, 36, 37, 38, 39,
4957 41, 42, 43, 44, 45, 46, 47, 48,
4958 49, 50, 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 76, 77, 78, 79, 80, 81, 82, 83,
4962 86, 87, 88, 89, 90, 91, 92, 93,
4963 94, 95, 97, 98, 99, 100, 101, 102,
4964 103, 104, 105, 106, 108, 109, 110, 111,
4965 112, 113, 114, 115, 116, 117, 119, 120,
4966 121, 122, 123, 124, 125, 126, 127, 128,
4967 130, 131, 132, 133, 134, 135, 136, 137,
4968 138, 139, 141, 142, 143, 144, 145, 146
4969};
9d116dd7 4970#endif
79072805 4971#else
22c35a8c 4972EXTCONST unsigned char PL_freq[];
79072805
LW		 4973#endif
4974
b0812ba3
DM		 4975/* Although only used for debugging, these constants must be available in
4976 * non-debugging builds too, since they're used in ext/re/re_exec.c,
4977 * which has DEBUGGING enabled always */
8990e307 4978#ifdef DOINIT
27da23d5 4979EXTCONST char* const PL_block_type[] = {
8990e307 4980 "NULL",
d01136d6 4981 "WHEN",
8990e307 4982 "BLOCK",
0d863452 4983 "GIVEN",
d01136d6
BS		 4984 "LOOP_FOR",
4985 "LOOP_PLAIN",
4986 "LOOP_LAZYSV",
4987 "LOOP_LAZYIV",
76753e7f
NC		 4988 "SUB",
4989 "FORMAT",
4990 "EVAL",
4991 "SUBST"
8990e307
LW		 4992};
4993#else
22c35a8c 4994EXTCONST char* PL_block_type[];
8990e307 4995#endif
8990e307 4996
b75885fd
NC		 4997/* These are all the compile time options that affect binary compatibility.
4998 Other compile time options that are binary compatible are in perl.c
4999 Both are combined for the output of perl -V
5000 However, this string will be embedded in any shared perl library, which will
5001 allow us add a comparison check in perlmain.c in the near future. */
5002#ifdef DOINIT
5003EXTCONST char PL_bincompat_options[] =
5004# ifdef DEBUG_LEAKING_SCALARS
5005 " DEBUG_LEAKING_SCALARS"
5006# endif
5007# ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
5008 " DEBUG_LEAKING_SCALARS_FORK_DUMP"
5009# endif
eba804b9
NC		 5010# ifdef FCRYPT
5011 " FCRYPT"
5012# endif
5013# ifdef HAS_TIMES
5014 " HAS_TIMES"
5015# endif
5016# ifdef HAVE_INTERP_INTERN
426f6eb2 5017 " HAVE_INTERP_INTERN"
eba804b9 5018# endif
b75885fd
NC		 5019# ifdef MULTIPLICITY
5020 " MULTIPLICITY"
5021# endif
5022# ifdef MYMALLOC
5023 " MYMALLOC"
5024# endif
eba804b9
NC		 5025# ifdef PERLIO_LAYERS
5026 " PERLIO_LAYERS"
5027# endif
cb26ef7a
MB		 5028# ifdef PERL_DEBUG_READONLY_COW
5029 " PERL_DEBUG_READONLY_COW"
5030# endif
b75885fd
NC		 5031# ifdef PERL_DEBUG_READONLY_OPS
5032 " PERL_DEBUG_READONLY_OPS"
5033# endif
5034# ifdef PERL_GLOBAL_STRUCT
5035 " PERL_GLOBAL_STRUCT"
5036# endif
59dba841
JH		 5037# ifdef PERL_GLOBAL_STRUCT_PRIVATE
5038 " PERL_GLOBAL_STRUCT_PRIVATE"
5039# endif
b75885fd
NC		 5040# ifdef PERL_IMPLICIT_CONTEXT
5041 " PERL_IMPLICIT_CONTEXT"
5042# endif
5043# ifdef PERL_IMPLICIT_SYS
5044 " PERL_IMPLICIT_SYS"
5045# endif
eba804b9
NC		 5046# ifdef PERL_MICRO
5047 " PERL_MICRO"
5048# endif
b75885fd
NC		 5049# ifdef PERL_NEED_APPCTX
5050 " PERL_NEED_APPCTX"
5051# endif
5052# ifdef PERL_NEED_TIMESBASE
5053 " PERL_NEED_TIMESBASE"
5054# endif
b75885fd
NC		 5055# ifdef PERL_POISON
5056 " PERL_POISON"
5057# endif
5b50f57e
FC		 5058# ifdef PERL_SAWAMPERSAND
5059 " PERL_SAWAMPERSAND"
5060# endif
b75885fd
NC		 5061# ifdef PERL_TRACK_MEMPOOL
5062 " PERL_TRACK_MEMPOOL"
5063# endif
5064# ifdef PERL_USES_PL_PIDSTATUS
5065 " PERL_USES_PL_PIDSTATUS"
5066# endif
b75885fd
NC		 5067# ifdef USE_64_BIT_ALL
5068 " USE_64_BIT_ALL"
5069# endif
5070# ifdef USE_64_BIT_INT
5071 " USE_64_BIT_INT"
5072# endif
c7b392fa
NC		 5073# ifdef USE_IEEE
5074 " USE_IEEE"
5075# endif
b75885fd
NC		 5076# ifdef USE_ITHREADS
5077 " USE_ITHREADS"
5078# endif
5079# ifdef USE_LARGE_FILES
5080 " USE_LARGE_FILES"
5081# endif
eba804b9
NC		 5082# ifdef USE_LOCALE_COLLATE
5083 " USE_LOCALE_COLLATE"
5084# endif
5085# ifdef USE_LOCALE_NUMERIC
5086 " USE_LOCALE_NUMERIC"
5087# endif
56e45410
KW		 5088# ifdef USE_LOCALE_TIME
5089 " USE_LOCALE_TIME"
5090# endif
b75885fd
NC		 5091# ifdef USE_LONG_DOUBLE
5092 " USE_LONG_DOUBLE"
5093# endif
5094# ifdef USE_PERLIO
5095 " USE_PERLIO"
5096# endif
05b4a618
JH		 5097# ifdef USE_QUADMATH
5098 " USE_QUADMATH"
5099# endif
b75885fd
NC		 5100# ifdef USE_REENTRANT_API
5101 " USE_REENTRANT_API"
5102# endif
b75885fd
NC		 5103# ifdef USE_SOCKS
5104 " USE_SOCKS"
5105# endif
4f575702
CB		 5106# ifdef VMS_DO_SOCKETS
5107 " VMS_DO_SOCKETS"
4f575702 5108# endif
e8b231c6
CB		 5109# ifdef VMS_SHORTEN_LONG_SYMBOLS
5110 " VMS_SHORTEN_LONG_SYMBOLS"
5111# endif
ad5e438d
NC		 5112# ifdef VMS_WE_ARE_CASE_SENSITIVE
5113 " VMS_SYMBOL_CASE_AS_IS"
5114# endif
a68dd89e 5115 "";
b75885fd
NC		 5116#else
5117EXTCONST char PL_bincompat_options[];
5118#endif
5119
ca7b837b
SM		 5120#ifndef PERL_SET_PHASE
5121# define PERL_SET_PHASE(new_phase) \
cb3f8189 5122 PHASE_CHANGE_PROBE(PL_phase_names[new_phase], PL_phase_names[PL_phase]); \
ca7b837b
SM		 5123 PL_phase = new_phase;
5124#endif
5125
9ebf26ad
FR		 5126/* The interpreter phases. If these ever change, PL_phase_names right below will
5127 * need to be updated accordingly. */
5128enum perl_phase {
5129 PERL_PHASE_CONSTRUCT = 0,
5130 PERL_PHASE_START = 1,
5131 PERL_PHASE_CHECK = 2,
5132 PERL_PHASE_INIT = 3,
5133 PERL_PHASE_RUN = 4,
5134 PERL_PHASE_END = 5,
5135 PERL_PHASE_DESTRUCT = 6
5136};
5137
5138#ifdef DOINIT
5139EXTCONST char *const PL_phase_names[] = {
5140 "CONSTRUCT",
5141 "START",
5142 "CHECK",
5143 "INIT",
5144 "RUN",
5145 "END",
5146 "DESTRUCT"
5147};
5148#else
5149EXTCONST char *const PL_phase_names[];
5150#endif
5151
627364f1
FR		 5152#ifndef PERL_CORE
5153/* Do not use this macro. It only exists for extensions that rely on PL_dirty
5154 * instead of using the newer PL_phase, which provides everything PL_dirty
5155 * provided, and more. */
5156# define PL_dirty (PL_phase == PERL_PHASE_DESTRUCT)
66978156
FC		 5157
5158# define PL_amagic_generation PL_na
627364f1
FR		 5159#endif /* !PERL_CORE */
5160
823ac2c8
FC		 5161#define PL_hints PL_compiling.cop_hints
5162
73c4f7a1
GS		 5163END_EXTERN_C
5164
79072805
LW		 5165/*****************************************************************************/
5166/* This lexer/parser stuff is currently global since yacc is hard to reenter */
5167/*****************************************************************************/
8990e307 5168/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 5169
d4c3c482 5170#ifdef __Lynx__
9cffb111
OS		 5171/* LynxOS defines these in scsi.h which is included via ioctl.h */
5172#ifdef FORMAT
5173#undef FORMAT
5174#endif
5175#ifdef SPACE
5176#undef SPACE
5177#endif
d4c3c482 5178#endif
9cffb111 5179
fb73857a 5180#define LEX_NOTPARSING 11 /* borrowed from toke.c */
5181
79072805
LW		 5182typedef enum {
5183 XOPERATOR,
5184 XTERM,
79072805 5185 XREF,
8990e307 5186 XSTATE,
a0d0e21e 5187 XBLOCK,
09bef843
SB		 5188 XATTRBLOCK,
5189 XATTRTERM,
6f33ba73 5190 XTERMBLOCK,
b5b6210a 5191 XBLOCKTERM,
89f35911 5192 XPOSTDEREF,
6f33ba73 5193 XTERMORDORDOR /* evil hack */
27308ded 5194 /* update exp_name[] in toke.c if adding to this enum */
79072805
LW		 5195} expectation;
5196
d5ec2987
NC		 5197/* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
5198 special and there is no need for HINT_PRIVATE_MASK for COPs
538e84ed
KW		 5199 However, bitops store HINT_INTEGER in their op_private.
5200
5201 NOTE: The typical module using these has the bit value hard-coded, so don't
d6ded950
KW		 5202 blindly change the values of these.
5203
5204 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one
5205 is for "use locale 'FOO'" which excludes some categories. It requires going
5206 to %^H to find out which are in and which are out. This could be extended
5207 for the normal case of a plain HINT_LOCALE, so that %^H would be used for
5208 any locale form. */
9cfe5470
RGS		 5209#define HINT_INTEGER 0x00000001 /* integer pragma */
5210#define HINT_STRICT_REFS 0x00000002 /* strict pragma */
5211#define HINT_LOCALE 0x00000004 /* locale pragma */
5212#define HINT_BYTES 0x00000008 /* bytes pragma */
d6ded950 5213#define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */
894ea76b
FC		 5214
5215#define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */
5216#define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */
5217#define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */
85e6fe83
LW		 5218
5219#define HINT_BLOCK_SCOPE 0x00000100
9cfe5470
RGS		 5220#define HINT_STRICT_SUBS 0x00000200 /* strict pragma */
5221#define HINT_STRICT_VARS 0x00000400 /* strict pragma */
1863b879 5222#define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */
85e6fe83 5223
9cfe5470 5224/* The HINT_NEW_* constants are used by the overload pragma */
b3ac6de7
IZ		 5225#define HINT_NEW_INTEGER 0x00001000
5226#define HINT_NEW_FLOAT 0x00002000
5227#define HINT_NEW_BINARY 0x00004000
5228#define HINT_NEW_STRING 0x00008000
5229#define HINT_NEW_RE 0x00010000
5230#define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */
8b850bd5
NC		 5231#define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */
5232#define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */
b3ac6de7 5233
9cfe5470
RGS		 5234#define HINT_RE_TAINT 0x00100000 /* re pragma */
5235#define HINT_RE_EVAL 0x00200000 /* re pragma */
b3eb6a9b 5236
9cfe5470
RGS		 5237#define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */
5238#define HINT_UTF8 0x00800000 /* utf8 pragma */
5ff3f7a4 5239
e46c382e
YK		 5240#define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */
5241
1e215989
FC		 5242#define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */
5243
a803b9b4
FC		 5244#define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */
5245
15da1ccf
FC		 5246 /* Note: Used for HINT_M_VMSISH_*,
5247 currently defined by vms/vmsish.h:
894ea76b
FC		 5248 0x40000000
5249 0x80000000
5250 */
d1718a7c 5251
0239f47c 5252/* The following are stored in $^H{sort}, not in PL_hints */
84d4ea48
JH		 5253#define HINT_SORT_SORT_BITS 0x000000FF /* allow 256 different ones */
5254#define HINT_SORT_QUICKSORT 0x00000001
5255#define HINT_SORT_MERGESORT 0x00000002
c53fc8a6 5256#define HINT_SORT_STABLE 0x00000100 /* sort styles (currently one) */
84d4ea48 5257
d3b97530
DM		 5258/* flags for PL_sawampersand */
5259
5260#define SAWAMPERSAND_LEFT 1 /* saw $` */
5261#define SAWAMPERSAND_MIDDLE 2 /* saw $& */
5262#define SAWAMPERSAND_RIGHT 4 /* saw $' */
5263
1a904fc8
FC		 5264#ifndef PERL_SAWAMPERSAND
5265# define PL_sawampersand \
5266 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT)
5267#endif
5268
a6d69523
TC		 5269/* Used for debugvar magic */
5270#define DBVARMG_SINGLE 0
5271#define DBVARMG_TRACE 1
5272#define DBVARMG_SIGNAL 2
5273#define DBVARMG_COUNT 3
5274
5275#define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE])
5276#define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE])
5277#define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL])
5278
8bfdd7d9 5279/* Various states of the input record separator SV (rs) */
d4cce5f1 5280#define RsSNARF(sv) (! SvOK(sv))
af7d13df
MG		 5281#define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
5282#define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv))
5b2b9c68 5283#define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
79072805 5284
128e8167 5285/* A struct for keeping various DEBUGGING related stuff,
ce333219 5286 * neatly packed. Currently only scratch variables for
128e8167
JH		 5287 * constructing debug output are included. Needed always,
5288 * not just when DEBUGGING, though, because of the re extension. c*/
ce333219
JH		 5289struct perl_debug_pad {
5290 SV pad[3];
5291};
5292
5293#define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i])
a5c57919
RGS		 5294#define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
5295 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
5296 PERL_DEBUG_PAD(i))
ce333219 5297
56953603 5298/* Enable variables which are pointers to functions */
16c91539
BM		 5299typedef void (*peep_t)(pTHX_ OP* o);
5300typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm);
5301typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg,
0cb96387
GS		 5302 char* strend, char* strbeg, I32 minend,
5303 SV* screamer, void* data, U32 flags);
16c91539 5304typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv,
f722798b
IZ		 5305 char *strpos, char *strend,
5306 U32 flags,
9f61653a 5307 re_scream_pos_data *d);
16c91539
BM		 5308typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog);
5309typedef void (*regfree_t) (pTHX_ struct regexp* r);
5310typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param);
a932d541 5311typedef I32 (*re_fold_t)(const char *, char const *, I32);
56953603 5312
c76ac1ee 5313typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
acfe0abc 5314typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
f30de749 5315typedef void (*SVFUNC_t) (pTHX_ SV* const);
31e9e0a3 5316typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const);
acfe0abc
GS		 5317typedef void (*XSINIT_t) (pTHX);
5318typedef void (*ATEXIT_t) (pTHX_ void*);
5319typedef void (*XSUBADDR_t) (pTHX_ CV *);
15e52e56 5320
16c91539
BM		 5321typedef OP* (*Perl_ppaddr_t)(pTHX);
5322typedef OP* (*Perl_check_t) (pTHX_ OP*);
5323typedef void(*Perl_ophook_t)(pTHX_ OP*);
5324typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**);
1830b3d9 5325typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *);
88e1f1a2 5326
d67594ff
FC		 5327typedef void(*globhook_t)(pTHX);
5328
88e1f1a2
JV		 5329#define KEYWORD_PLUGIN_DECLINE 0
5330#define KEYWORD_PLUGIN_STMT 1
5331#define KEYWORD_PLUGIN_EXPR 2
22239a37 5332
58a50f62
GS		 5333/* Interpreter exitlist entry */
5334typedef struct exitlistentry {
acfe0abc 5335 void (*fn) (pTHX_ void*);
58a50f62
GS		 5336 void *ptr;
5337} PerlExitListEntry;
5338
aadb217d
JH		 5339/* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
5340/* These have to be before perlvars.h */
5341#if !defined(HAS_SIGACTION) && defined(VMS)
5342# define FAKE_PERSISTENT_SIGNAL_HANDLERS
5343#endif
5344/* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
5345#if defined(KILL_BY_SIGPRC)
5346# define FAKE_DEFAULT_SIGNAL_HANDLERS
5347#endif
5348
8c1cc017
NC		 5349#if !defined(MULTIPLICITY)
5350
5351struct interpreter {
5352 char broiled;
22239a37
NIS		 5353};
5354
8c1cc017 5355#else
22239a37 5356
d460ef45 5357/* If we have multiple interpreters define a struct
d4cce5f1 5358 holding variables which must be per-interpreter
d460ef45 5359 If we don't have threads anything that would have
d4cce5f1
NIS		 5360 be per-thread is per-interpreter.
5361*/
5362
8c1cc017 5363/* Set up PERLVAR macros for populating structs */
115ff745 5364# define PERLVAR(prefix,var,type) type prefix##var;
eb42f199
KW		 5365
5366/* 'var' is an array of length 'n' */
115ff745 5367# define PERLVARA(prefix,var,n,type) type prefix##var[n];
eb42f199
KW		 5368
5369/* initialize 'var' to init' */
115ff745 5370# define PERLVARI(prefix,var,type,init) type prefix##var;
eb42f199
KW		 5371
5372/* like PERLVARI, but make 'var' a const */
115ff745 5373# define PERLVARIC(prefix,var,type,init) type prefix##var;
8c1cc017 5374
79072805 5375struct interpreter {
7766f137 5376# include "intrpvar.h"
49f531da 5377};
d4cce5f1 5378
724cf8d6
NC		 5379EXTCONST U16 PL_interp_size
5380 INIT(sizeof(struct interpreter));
5381
5382# define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \
5383 STRUCT_OFFSET(struct interpreter, member) + \
5384 sizeof(((struct interpreter*)0)->member)
5385
5386/* This will be useful for subsequent releases, because this has to be the
5387 same in your libperl as in main(), else you have a mismatch and must abort.
5388*/
d399cf59
NC		 5389EXTCONST U16 PL_interp_size_5_18_0
5390 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER));
724cf8d6
NC		 5391
5392
8c1cc017
NC		 5393# ifdef PERL_GLOBAL_STRUCT
5394/* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined,
5395 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */
5396
5397struct perl_vars {
5398# include "perlvars.h"
49f531da 5399};
8c1cc017 5400
724cf8d6
NC		 5401EXTCONST U16 PL_global_struct_size
5402 INIT(sizeof(struct perl_vars));
5403
8c1cc017
NC		 5404# ifdef PERL_CORE
5405# ifndef PERL_GLOBAL_STRUCT_PRIVATE
5406EXT struct perl_vars PL_Vars;
5407EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
5408# undef PERL_GET_VARS
5409# define PERL_GET_VARS() PL_VarsPtr
5410# endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
5411# else /* PERL_CORE */
5412# if !defined(__GNUC__) || !defined(WIN32)
5413EXT
5414# endif /* WIN32 */
5415struct perl_vars *PL_VarsPtr;
5416# define PL_Vars (*((PL_VarsPtr) \
5417 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
5418# endif /* PERL_CORE */
5419# endif /* PERL_GLOBAL_STRUCT */
79072805 5420
22239a37 5421/* Done with PERLVAR macros for now ... */
8c1cc017
NC		 5422# undef PERLVAR
5423# undef PERLVARA
5424# undef PERLVARI
5425# undef PERLVARIC
8c1cc017
NC		 5426
5427#endif /* MULTIPLICITY */
79072805 5428
f7fe979e 5429struct tempsym; /* defined in pp_pack.c */
49704364 5430
22239a37 5431#include "thread.h"
79072805 5432#include "pp.h"
864dbfa3 5433
0cb96387
GS		 5434#undef PERL_CKDEF
5435#undef PERL_PPDEF
0159f81b
JH		 5436#define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o);
5437#define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX);
0cb96387 5438
158cfab6
JD		 5439#ifdef MYMALLOC
5440# include "malloc_ctl.h"
5441#endif
5442
fc6bde6f
DD		 5443/*
5444 * This provides a layer of functions and macros to ensure extensions will
5445 * get to use the same RTL functions as the core.
5446 */
5447#if defined(WIN32)
5448# include "win32iop.h"
5449#endif
5450
839a9f02 5451
7766f137 5452#include "proto.h"
864dbfa3 5453
0cb96387 5454/* this has structure inits, so it cannot be included before here */
acfe0abc 5455#include "opcode.h"
864dbfa3 5456
d4cce5f1
NIS		 5457/* The following must follow proto.h as #defines mess up syntax */
5458
22c35a8c
GS		 5459#if !defined(PERL_FOR_X2P)
5460# include "embedvar.h"
5461#endif
d4cce5f1 5462
d460ef45 5463/* Now include all the 'global' variables
d4cce5f1 5464 * If we don't have threads or multiple interpreters
d460ef45 5465 * these include variables that would have been their struct-s
d4cce5f1 5466 */
d460ef45 5467
115ff745
NC		 5468#define PERLVAR(prefix,var,type) EXT type PL_##var;
5469#define PERLVARA(prefix,var,n,type) EXT type PL_##var[n];
5470#define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init);
5471#define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init);
d4cce5f1 5472
acfe0abc 5473#if !defined(MULTIPLICITY)
7766f137 5474START_EXTERN_C
066ef5b5 5475# include "intrpvar.h"
7766f137 5476END_EXTERN_C
22239a37
NIS		 5477#endif
5478
24792b8d
NC		 5479#ifdef PERL_CORE
5480/* All core uses now exterminated. Ensure no zombies can return: */
5481# undef PL_na
5482#endif
5483
f9293c5b
NC		 5484/* Now all the config stuff is setup we can include embed.h
5485 In particular, need the relevant *ish file included already, as it may
5486 define HAVE_INTERP_INTERN */
5487#include "embed.h"
22239a37 5488
c5be433b
GS		 5489#ifndef PERL_GLOBAL_STRUCT
5490START_EXTERN_C
5491
5492# include "perlvars.h"
5493
5494END_EXTERN_C
5495#endif
5496
d4cce5f1 5497#undef PERLVAR
51371543 5498#undef PERLVARA
d4cce5f1 5499#undef PERLVARI
0f3f18a6 5500#undef PERLVARIC
79072805 5501
db6e00bd
DD		 5502#if !defined(MULTIPLICITY)
5503/* Set up PERLVAR macros for populating structs */
5504# define PERLVAR(prefix,var,type) type prefix##var;
5505/* 'var' is an array of length 'n' */
5506# define PERLVARA(prefix,var,n,type) type prefix##var[n];
5507/* initialize 'var' to init' */
5508# define PERLVARI(prefix,var,type,init) type prefix##var;
5509/* like PERLVARI, but make 'var' a const */
5510# define PERLVARIC(prefix,var,type,init) type prefix##var;
5511
5512/* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */
5513struct PerlHandShakeInterpreter {
5514# include "intrpvar.h"
5515};
5516# undef PERLVAR
5517# undef PERLVARA
5518# undef PERLVARI
5519# undef PERLVARIC
5520#endif
5521
73c4f7a1
GS		 5522START_EXTERN_C
5523
af2f0da9
NC		 5524/* dummy variables that hold pointers to both runops functions, thus forcing
5525 * them *both* to get linked in (useful for Peek.xs, debugging etc) */
5526
5527EXTCONST runops_proc_t PL_runops_std
5528 INIT(Perl_runops_standard);
5529EXTCONST runops_proc_t PL_runops_dbg
5530 INIT(Perl_runops_debug);
5531
c910fead 5532#define EXT_MGVTBL EXTCONST MGVTBL
bc028b6b 5533
82ff486e 5534#define PERL_MAGIC_READONLY_ACCEPTABLE 0x40
e0a73de4
NC		 5535#define PERL_MAGIC_VALUE_MAGIC 0x80
5536#define PERL_MAGIC_VTABLE_MASK 0x3F
82ff486e
NC		 5537#define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \
5538 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE)
e0a73de4
NC		 5539#define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \
5540 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC)
5541
8b09643d 5542#include "mg_vtable.h"
6f83ef0e
NC		 5543
5544#ifdef DOINIT
5545EXTCONST U8 PL_magic_data[256] =
dde5ec2c
NC		 5546# ifdef PERL_MICRO
5547# include "umg_data.h"
5548# else
5549# include "mg_data.h"
5550# endif
6f83ef0e
NC		 5551;
5552#else
5553EXTCONST U8 PL_magic_data[256];
5554#endif
5555
f1fb8741 5556#ifdef DOINIT
e94d9b54 5557 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */
f1fb8741 5558EXTCONST bool
e94d9b54 5559PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5560EXTCONST bool
e94d9b54 5561PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741 5562EXTCONST bool
d361b004 5563PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1 };
f1fb8741 5564EXTCONST bool
e94d9b54 5565PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
f1fb8741 5566EXTCONST bool
e94d9b54 5567PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
f1fb8741 5568EXTCONST bool
e94d9b54 5569PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
f1fb8741
DM		 5570
5571#else
5572
5573EXTCONST bool PL_valid_types_IVX[];
5574EXTCONST bool PL_valid_types_NVX[];
5575EXTCONST bool PL_valid_types_PVX[];
5576EXTCONST bool PL_valid_types_RV[];
5577EXTCONST bool PL_valid_types_IV_set[];
5578EXTCONST bool PL_valid_types_NV_set[];
5579
5580#endif
5581
9e76e8dd
JH		 5582/* In C99 we could use designated (named field) union initializers.
5583 * In C89 we need to initialize the member declared first.
5584 *
5585 * With the U8_NV version you will want to have inner braces,
5586 * while with the NV_U8 use just the NV.*/
5587#define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; }
5588#define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; }
5589
5590#ifdef DOINIT
5591
5592/* PL_inf and PL_nan initialization.
5593 *
5594 * For inf and nan initialization the ultimate fallback is dividing
5595 * one or zero by zero: however, some compilers will warn or even fail
5596 * on divide-by-zero, but hopefully something earlier will work.
5597 *
5598 * If you are thinking of using HUGE_VAL for infinity, or using
5599 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)),
5600 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX,
5601 * and the math functions might be just generating DBL_MAX, or even zero.
5602 *
5603 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF).
5604 * Though logically correct, some compilers (like Visual C 2003)
5605 * falsely misoptimize that to zero (x-x is always zero, right?)
5606 */
5607
d48cfc77 5608/* The quadmath literals are anon structs which -Wc++-compat doesn't like. */
ac892e4a 5609GCC_DIAG_IGNORE(-Wc++-compat)
d48cfc77 5610
9e76e8dd
JH		 5611# ifdef USE_QUADMATH
5612/* Cannot use HUGE_VALQ for PL_inf because not a compile-time
d48cfc77 5613 * constant. */
9e76e8dd 5614INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q };
9e76e8dd
JH		 5615# elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES)
5616INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } };
5617# elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES)
5618INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } };
5619# else
5620# if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
5621# if defined(LDBL_INFINITY)
5622INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY };
5623# elif defined(LDBL_INF)
5624INFNAN_NV_U8_DECL PL_inf = { LDBL_INF };
5625# elif defined(INFINITY)
5626INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
5627# elif defined(INF)
5628INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
5629# else
5630INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */
5631# endif
5632# else
5633# if defined(DBL_INFINITY)
5634INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY };
5635# elif defined(DBL_INF)
5636INFNAN_NV_U8_DECL PL_inf = { DBL_INF };
5637# elif defined(INFINITY) /* C99 */
5638INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY };
5639# elif defined(INF)
5640INFNAN_NV_U8_DECL PL_inf = { (NV)INF };
5641# else
5642INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */
5643# endif
5644# endif
5645# endif
5646
5647# ifdef USE_QUADMATH
5648/* Cannot use nanq("0") for PL_nan because not a compile-time
d48cfc77 5649 * constant. */
9e76e8dd 5650INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q };
9e76e8dd
JH		 5651# elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES)
5652INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } };
5653# elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES)
5654INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } };
5655# else
5656# if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE)
5657# if defined(LDBL_NAN)
5658INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN };
5659# elif defined(LDBL_QNAN)
5660INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN };
5661# elif defined(NAN)
5662INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
5663# else
5664INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */
5665# endif
5666# else
5667# if defined(DBL_NAN)
5668INFNAN_NV_U8_DECL PL_nan = { DBL_NAN };
5669# elif defined(DBL_QNAN)
5670INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN };
5671# elif defined(NAN) /* C99 */
5672INFNAN_NV_U8_DECL PL_nan = { (NV)NAN };
5673# else
5674INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */
5675# endif
5676# endif
5677# endif
5678
ac892e4a 5679GCC_DIAG_RESTORE
d48cfc77 5680
9e76e8dd
JH		 5681#else
5682
5683INFNAN_NV_U8_DECL PL_inf;
5684INFNAN_NV_U8_DECL PL_nan;
5685
5686#endif
5687
5688/* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h),
5689 * we will define NV_INF/NV_NAN as the nv part of the global const
5690 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN
5691 * might not be a compile-time constant, in which case it cannot be
5692 * used to initialize PL_inf/PL_nan above. */
5693#ifndef NV_INF
5694# define NV_INF PL_inf.nv
5695#endif
5696#ifndef NV_NAN
5697# define NV_NAN PL_nan.nv
5698#endif
cf6e31e9
DM		 5699
5700/* if these never got defined, they need defaults */
5701#ifndef PERL_SET_CONTEXT
5702# define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i)
5703#endif
5704
5705#ifndef PERL_GET_CONTEXT
5706# define PERL_GET_CONTEXT PERL_GET_INTERP
5707#endif
5708
5709#ifndef PERL_GET_THX
5710# define PERL_GET_THX ((void*)NULL)
5711#endif
5712
5713#ifndef PERL_SET_THX
5714# define PERL_SET_THX(t) NOOP
5715#endif
5716
5717
c7627e6d
NC		 5718#ifndef PERL_NO_INLINE_FUNCTIONS
5719/* Static inline funcs that depend on includes and declarations above.
5720 Some of these reference functions in the perl object files, and some
5721 compilers aren't smart enough to eliminate unused static inline
5722 functions, so including this file in source code can cause link errors
5723 even if the source code uses none of the functions. Hence including these
5724 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will
5725 (obviously) result in unworkable XS code, but allows simple probing code
5726 to continue to work, because it permits tests to include the perl headers
5727 for definitions without creating a link dependency on the perl library
5728 (which may not exist yet).
5729*/
5730
5731# include "inline.h"
5732#endif
f1fb8741 5733
bab3dc31 5734#include "overload.h"
a0d0e21e 5735
73c4f7a1
GS		 5736END_EXTERN_C
5737
a6006777 5738struct am_table {
8978b4ac
NC		 5739 U8 flags;
5740 U8 fallback;
5741 U16 spare;
eb160463 5742 U32 was_ok_sub;
9bd87817 5743 CV* table[NofAMmeth];
a0d0e21e 5744};
a6006777 5745struct am_table_short {
8978b4ac
NC		 5746 U8 flags;
5747 U8 fallback;
5748 U16 spare;
eb160463 5749 U32 was_ok_sub;
a6006777 5750};
a0d0e21e 5751typedef struct am_table AMT;
a6006777 5752typedef struct am_table_short AMTS;
a0d0e21e
LW		 5753
5754#define AMGfallNEVER 1
5755#define AMGfallNO 2
5756#define AMGfallYES 3
5757
a6006777 5758#define AMTf_AMAGIC 1
5759#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
5760#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
5761#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
5762
32251b26 5763#define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg))
c0315cdf
JH		 5764
5765/*
5766 * some compilers like to redefine cos et alia as faster
5767 * (and less accurate?) versions called F_cos et cetera (Quidquid
5768 * latine dictum sit, altum viditur.) This trick collides with
5769 * the Perl overloading (amg). The following #defines fool both.
5770 */
5771
5772#ifdef _FASTMATH
5773# ifdef atan2
5774# define F_atan2_amg atan2_amg
5775# endif
5776# ifdef cos
5777# define F_cos_amg cos_amg
5778# endif
5779# ifdef exp
5780# define F_exp_amg exp_amg
5781# endif
5782# ifdef log
5783# define F_log_amg log_amg
5784# endif
5785# ifdef pow
5786# define F_pow_amg pow_amg
5787# endif
5788# ifdef sin
5789# define F_sin_amg sin_amg
5790# endif
5791# ifdef sqrt
5792# define F_sqrt_amg sqrt_amg
5793# endif
5794#endif /* _FASTMATH */
5795
83ee9e09
GS		 5796#define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \
5797 PERLDBf_NOOPT | PERLDBf_INTER | \
5798 PERLDBf_SUBLINE| PERLDBf_SINGLE| \
b8fcbefe
NC		 5799 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \
5800 PERLDBf_SAVESRC)
925cfbb8 5801 /* No _NONAME, _GOTO */
83ee9e09
GS		 5802#define PERLDBf_SUB 0x01 /* Debug sub enter/exit */
5803#define PERLDBf_LINE 0x02 /* Keep line # */
5804#define PERLDBf_NOOPT 0x04 /* Switch off optimizations */
5805#define PERLDBf_INTER 0x08 /* Preserve more data for
5806 later inspections */
5807#define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */
5808#define PERLDBf_SINGLE 0x20 /* Start with single-step on */
5809#define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */
5810#define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */
5811#define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */
5812#define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */
b8fcbefe 5813#define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */
486ec47a 5814#define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */
c30d8139 5815#define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */
84902520 5816
8bd38399
DD		 5817#define PERLDB_SUB (PL_perldb & PERLDBf_SUB)
5818#define PERLDB_LINE (PL_perldb & PERLDBf_LINE)
5819#define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT)
5820#define PERLDB_INTER (PL_perldb & PERLDBf_INTER)
5821#define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE)
5822#define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE)
5823#define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME)
5824#define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO)
5825#define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL)
5826#define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON)
5827#define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC)
5828#define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS)
5829#define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID)
bbce6d69 5830
c7a622b3
DD		 5831#define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC))
5832
91191cf7 5833#ifdef USE_LOCALE
d6ded950 5834/* These locale things are all subject to change */
c8bf5ca7 5835/* Returns TRUE if the plain locale pragma without a parameter is in effect
66cbab2c 5836 */
6d62ead0 5837# define IN_LOCALE_RUNTIME cBOOL(CopHINTS_get(PL_curcop) & HINT_LOCALE)
66cbab2c 5838
c8bf5ca7 5839/* Returns TRUE if either form of the locale pragma is in effect */
6d62ead0 5840# define IN_SOME_LOCALE_FORM_RUNTIME \
d6ded950 5841 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
66cbab2c 5842
6d62ead0
KW		 5843# define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE)
5844# define IN_SOME_LOCALE_FORM_COMPILETIME \
d6ded950 5845 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL))
2de3dbcc 5846
6d62ead0 5847# define IN_LOCALE \
923e4eb5 5848 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
6d62ead0 5849# define IN_SOME_LOCALE_FORM \
66cbab2c
KW		 5850 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \
5851 : IN_SOME_LOCALE_FORM_RUNTIME)
2de3dbcc 5852
6d62ead0
KW		 5853# define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME
5854# define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME
5855
5856# define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL)
5857# define IN_LC_PARTIAL_RUNTIME \
5858 cBOOL(CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL)
5859
5860# define IN_LC_COMPILETIME(category) \
5861 (IN_LC_ALL_COMPILETIME || (IN_LC_PARTIAL_COMPILETIME \
5862 && _is_in_locale_category(TRUE, (category))))
5863# define IN_LC_RUNTIME(category) \
5864 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \
5865 && _is_in_locale_category(FALSE, (category))))
5866# define IN_LC(category) \
5867 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category))
d6ded950 5868
780fcc9f
KW		 5869# if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE)
5870
5871 /* This internal macro should be called from places that operate under
5872 * locale rules. It there is a problem with the current locale that
2726666d
KW		 5873 * hasn't been raised yet, it will output a warning this time. Because
5874 * this will so rarely be true, there is no point to optimize for
5875 * time; instead it makes sense to minimize space used and do all the
5876 * work in the rarely called function */
33245021
KW		 5877# ifdef USE_LOCALE_CTYPE
5878# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \
5879 STMT_START { \
5880 if (UNLIKELY(PL_warn_locale)) { \
5881 _warn_problematic_locale(); \
5882 } \
5883 } STMT_END
5884# else
5885# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
5886# endif
780fcc9f
KW		 5887
5888
613abc6d
KW		 5889 /* These two internal macros are called when a warning should be raised,
5890 * and will do so if enabled. The first takes a single code point
5891 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded
5892 * string, and an end position which it won't try to read past */
5893# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \
008e8e82
KW		 5894 STMT_START { \
5895 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
5896 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5897 "Wide character (U+%"UVXf") in %s", \
5898 (UV) cp, OP_DESC(PL_op)); \
5899 } \
5900 } STMT_END
613abc6d
KW		 5901
5902# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \
5903 STMT_START { /* Check if to warn before doing the conversion work */\
008e8e82 5904 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \
613abc6d
KW		 5905 UV cp = utf8_to_uvchr_buf((U8 *) s, (U8 *) send, NULL); \
5906 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \
5907 "Wide character (U+%"UVXf") in %s", \
5908 (cp == 0) \
5909 ? UNICODE_REPLACEMENT \
5910 : (UV) cp, \
5911 OP_DESC(PL_op)); \
5912 } \
5913 } STMT_END
5914
780fcc9f
KW		 5915# endif /* PERL_CORE or PERL_IN_XSUB_RE */
5916
91191cf7
KW		 5917#else /* No locale usage */
5918# define IN_LOCALE_RUNTIME 0
5919# define IN_SOME_LOCALE_FORM_RUNTIME 0
5920# define IN_LOCALE_COMPILETIME 0
5921# define IN_SOME_LOCALE_FORM_COMPILETIME 0
5922# define IN_LOCALE 0
5923# define IN_SOME_LOCALE_FORM 0
5924# define IN_LC_ALL_COMPILETIME 0
5925# define IN_LC_ALL_RUNTIME 0
5926# define IN_LC_PARTIAL_COMPILETIME 0
5927# define IN_LC_PARTIAL_RUNTIME 0
5928# define IN_LC_COMPILETIME(category) 0
5929# define IN_LC_RUNTIME(category) 0
5930# define IN_LC(category) 0
780fcc9f
KW		 5931
5932# define _CHECK_AND_WARN_PROBLEMATIC_LOCALE
613abc6d
KW		 5933# define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(a)
5934# define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(a,b)
91191cf7
KW		 5935#endif
5936
6bf09f55
KW		 5937#ifdef USE_LOCALE_NUMERIC
5938
67d796ae 5939/* These macros are for toggling between the underlying locale (UNDERLYING or
45235d99
KW		 5940 * LOCAL) and the C locale (STANDARD).
5941
5942=head1 Locale-related functions and macros
5943
5944=for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION
5945
5946This macro should be used as a statement. It declares a private variable
5947(whose name begins with an underscore) that is needed by the other macros in
5948this section. Failing to include this correctly should lead to a syntax error.
5949For compatibility with C89 C compilers it should be placed in a block before
5950any executable statements.
5951
5952=for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING
5953
5954This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the
5955locale for category C<LC_NUMERIC> to be what perl thinks is the current
5956underlying locale. (The perl interpreter could be wrong about what the
5957underlying locale actually is if some C or XS code has called the C library
5958function L<setlocale(3)> behind its back; calling L</sync_locale> before calling
5959this macro will update perl's records.)
5960
5961A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5962declare at compile time a private variable used by this macro. This macro
5963should be called as a single statement, not an expression, but with an empty
5964argument list, like this:
5965
5966 {
5967 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
5968 ...
5969 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING();
5970 ...
5971 RESTORE_LC_NUMERIC();
5972 ...
5973 }
5974
5975The private variable is used to save the current locale state, so
5976that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it.
5977
5978=for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED
5979
5980This is used to help wrap XS or C code that that is C<LC_NUMERIC> locale-aware.
5981This locale category is generally kept set to the C locale by Perl for
5982backwards compatibility, and because most XS code that reads floating point
5983values can cope only with the decimal radix character being a dot.
5984
5985This macro makes sure the current C<LC_NUMERIC> state is set properly, to be
5986aware of locale if the call to the XS or C code from the Perl program is
5987from within the scope of a S<C<use locale>>; or to ignore locale if the call is
5988instead from outside such scope.
5989
5990This macro is the start of wrapping the C or XS code; the wrap ending is done
5991by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise
5992the state can be changed that will adversely affect other XS code.
5993
5994A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
5995declare at compile time a private variable used by this macro. This macro
5996should be called as a single statement, not an expression, but with an empty
5997argument list, like this:
5998
5999 {
6000 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6001 ...
6002 STORE_LC_NUMERIC_SET_TO_NEEDED();
6003 ...
6004 RESTORE_LC_NUMERIC();
6005 ...
6006 }
6007
6008=for apidoc Am|void|RESTORE_LC_NUMERIC
6009
6010This is used in conjunction with one of the macros
6011L</STORE_LC_NUMERIC_SET_TO_NEEDED>
6012and
6013L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING>
6014
6015to properly restore the C<LC_NUMERIC> state.
6016
6017A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to
6018declare at compile time a private variable used by this macro and the two
6019C<STORE> ones. This macro should be called as a single statement, not an
6020expression, but with an empty argument list, like this:
6021
6022 {
6023 DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
6024 ...
6025 RESTORE_LC_NUMERIC();
6026 ...
6027 }
6028
6029=cut
6030
6031*/
8a11fac9 6032
aaaeb297 6033#define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard)
7738054c
KW		 6034
6035/* We can lock the category to stay in the C locale, making requests to the
260c7ace
KW		 6036 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2.
6037 * */
67d796ae
KW		 6038#define _NOT_IN_NUMERIC_UNDERLYING \
6039 (! PL_numeric_local && PL_numeric_standard < 2)
6040
6041#define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \
6042 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL
6043
6044#define STORE_LC_NUMERIC_SET_TO_NEEDED() \
6045 if (IN_LC(LC_NUMERIC)) { \
6046 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6047 set_numeric_local(); \
6048 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6049 } \
6050 } \
6051 else { \
6052 if (_NOT_IN_NUMERIC_STANDARD) { \
6053 SET_NUMERIC_STANDARD(); \
6054 _restore_LC_NUMERIC_function = &Perl_set_numeric_local; \
6055 } \
8a11fac9
KW		 6056 }
6057
e737dcc5
KW		 6058#define RESTORE_LC_NUMERIC() \
6059 if (_restore_LC_NUMERIC_function) { \
6060 _restore_LC_NUMERIC_function(aTHX); \
8a11fac9
KW		 6061 }
6062
6063/* The next two macros set unconditionally. These should be rarely used, and
6064 * only after being sure that this is what is needed */
8d98ede7 6065#define SET_NUMERIC_STANDARD() \
aaaeb297 6066 STMT_START { if (_NOT_IN_NUMERIC_STANDARD) set_numeric_standard(); \
8d98ede7 6067 } STMT_END
87755cd9 6068
67d796ae
KW		 6069#define SET_NUMERIC_UNDERLYING() \
6070 STMT_START { if (_NOT_IN_NUMERIC_UNDERLYING) \
aaaeb297 6071 set_numeric_local(); } STMT_END
87755cd9 6072
8a11fac9
KW		 6073/* The rest of these LC_NUMERIC macros toggle to one or the other state, with
6074 * the RESTORE_foo ones called to switch back, but only if need be */
67d796ae
KW		 6075#define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD() \
6076 bool _was_local = _NOT_IN_NUMERIC_STANDARD; \
aaaeb297 6077 if (_was_local) set_numeric_standard();
f93f4e46 6078
b34856cb
KW		 6079/* Doesn't change to underlying locale unless within the scope of some form of
6080 * 'use locale'. This is the usual desired behavior. */
67d796ae
KW		 6081#define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING() \
6082 bool _was_standard = _NOT_IN_NUMERIC_UNDERLYING \
6083 && IN_LC(LC_NUMERIC); \
aaaeb297 6084 if (_was_standard) set_numeric_local();
f93f4e46 6085
371d5d44
KW		 6086/* Rarely, we want to change to the underlying locale even outside of 'use
6087 * locale'. This is principally in the POSIX:: functions */
67d796ae
KW		 6088#define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \
6089 if (_NOT_IN_NUMERIC_UNDERLYING) { \
6090 set_numeric_local(); \
6091 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \
6092 }
371d5d44 6093
7738054c 6094/* Lock to the C locale until unlock is called */
67d796ae
KW		 6095#define LOCK_LC_NUMERIC_STANDARD() \
6096 (__ASSERT_(PL_numeric_standard) \
7738054c
KW		 6097 PL_numeric_standard = 2)
6098
67d796ae
KW		 6099#define UNLOCK_LC_NUMERIC_STANDARD() \
6100 (__ASSERT_(PL_numeric_standard == 2) \
7738054c
KW		 6101 PL_numeric_standard = 1)
6102
67d796ae 6103#define RESTORE_LC_NUMERIC_UNDERLYING() \
aaaeb297 6104 if (_was_local) set_numeric_local();
f93f4e46 6105
67d796ae
KW		 6106#define RESTORE_LC_NUMERIC_STANDARD() \
6107 if (_restore_LC_NUMERIC_function) { \
6108 _restore_LC_NUMERIC_function(aTHX); \
6109 }
f93f4e46 6110
36477c24 6111#else /* !USE_LOCALE_NUMERIC */
bbce6d69 6112
63b18b66
KW		 6113#define SET_NUMERIC_STANDARD()
6114#define SET_NUMERIC_UNDERLYING()
5e931b6b 6115#define IS_NUMERIC_RADIX(a, b) (0)
67d796ae
KW		 6116#define STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
6117#define STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
6118#define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6119#define RESTORE_LC_NUMERIC_UNDERLYING()
e737dcc5 6120#define RESTORE_LC_NUMERIC_STANDARD()
67d796ae 6121#define DECLARATION_FOR_LC_NUMERIC_MANIPULATION
8a11fac9 6122#define STORE_LC_NUMERIC_SET_TO_NEEDED()
8a11fac9 6123#define RESTORE_LC_NUMERIC()
67d796ae
KW		 6124#define LOCK_LC_NUMERIC_STANDARD()
6125#define UNLOCK_LC_NUMERIC_STANDARD()
8a11fac9 6126
36477c24 6127#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 6128
22bc8aa4
KW		 6129#define Atof my_atof
6130
67d796ae
KW		 6131/* Back-compat names */
6132#define DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED \
6133 DECLARATION_FOR_LC_NUMERIC_MANIPULATION
6134#define DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED() \
6135 DECLARATION_FOR_STORE_LC_NUMERIC_SET_TO_NEEDED; \
6136 STORE_LC_NUMERIC_SET_TO_NEEDED();
6137#define LOCK_NUMERIC_STANDARD() LOCK_LC_NUMERIC_STANDARD()
6138#define RESTORE_NUMERIC_LOCAL() RESTORE_LC_NUMERIC_UNDERLYING()
6139#define RESTORE_NUMERIC_STANDARD() RESTORE_LC_NUMERIC_STANDARD()
6140#define SET_NUMERIC_LOCAL() SET_NUMERIC_UNDERLYING()
6141#define STORE_NUMERIC_LOCAL_SET_STANDARD() \
6142 STORE_LC_NUMERIC_UNDERLYING_SET_STANDARD()
6143#define STORE_NUMERIC_STANDARD_SET_LOCAL() \
6144 STORE_LC_NUMERIC_STANDARD_SET_UNDERLYING()
6145#define STORE_NUMERIC_STANDARD_FORCE_LOCAL() \
6146 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING()
6147#define UNLOCK_NUMERIC_STANDARD() UNLOCK_LC_NUMERIC_STANDARD()
6148
6149
6150
05b4a618
JH		 6151#ifdef USE_QUADMATH
6152# define Perl_strtod(s, e) strtoflt128(s, e)
6153#elif defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
f1b32d61
JH		 6154# if defined(HAS_STRTOLD)
6155# define Perl_strtod(s, e) strtold(s, e)
6156# elif defined(HAS_STRTOD)
6157# define Perl_strtod(s, e) (NV)strtod(s, e) /* Unavoidable loss. */
6158# endif
6159#elif defined(HAS_STRTOD)
6160# define Perl_strtod(s, e) strtod(s, e)
6161#endif
6162
85b76970
SH		 6163#if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \
6164 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 6165# ifdef __hpux
6166# define strtoll __strtoll /* secret handshake */
6167# endif
c623ac67
GS		 6168# ifdef WIN64
6169# define strtoll _strtoi64 /* secret handshake */
6170# endif
079290de
GS		 6171# if !defined(Strtol) && defined(HAS_STRTOLL)
6172# define Strtol strtoll
ad551343 6173# endif
28e5dec8
JH		 6174# if !defined(Strtol) && defined(HAS_STRTOQ)
6175# define Strtol strtoq
6176# endif
ff935051 6177/* is there atoq() anywhere? */
15b99d39 6178#endif
079290de
GS		 6179#if !defined(Strtol) && defined(HAS_STRTOL)
6180# define Strtol strtol
6181#endif
6182#ifndef Atol
6183/* It would be more fashionable to use Strtol() to define atol()
6184 * (as is done for Atoul(), see below) but for backward compatibility
6185 * we just assume atol(). */
85b76970
SH		 6186# if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \
6187 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
c623ac67
GS		 6188# ifdef WIN64
6189# define atoll _atoi64 /* secret handshake */
6190# endif
76b882ba
JH		 6191# define Atol atoll
6192# else
6193# define Atol atol
6194# endif
cf2093f6
JH		 6195#endif
6196
85b76970
SH		 6197#if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \
6198 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64)
ec7b9793
JH		 6199# ifdef __hpux
6200# define strtoull __strtoull /* secret handshake */
6201# endif
c623ac67
GS		 6202# ifdef WIN64
6203# define strtoull _strtoui64 /* secret handshake */
6204# endif
ad551343 6205# if !defined(Strtoul) && defined(HAS_STRTOULL)
388d3c03 6206# define Strtoul strtoull
15b99d39 6207# endif
079290de
GS		 6208# if !defined(Strtoul) && defined(HAS_STRTOUQ)
6209# define Strtoul strtouq
6210# endif
76d49b1c 6211/* is there atouq() anywhere? */
ad551343 6212#endif
079290de
GS		 6213#if !defined(Strtoul) && defined(HAS_STRTOUL)
6214# define Strtoul strtoul
cf2093f6 6215#endif
a5523c5b
JH		 6216#if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
6217# define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
6218#endif
079290de 6219#ifndef Atoul
d4c19fe8 6220# define Atoul(s) Strtoul(s, NULL, 10)
55eb892c 6221#endif
cf2093f6 6222
a868473f
NIS		 6223#ifndef PERL_SCRIPT_MODE
6224#define PERL_SCRIPT_MODE "r"
6225#endif
6226
fba3b22e 6227/*
da927450
JH		 6228 * Some operating systems are stingy with stack allocation,
6229 * so perl may have to guard against stack overflow.
6230 */
6231#ifndef PERL_STACK_OVERFLOW_CHECK
c2af87cb 6232#define PERL_STACK_OVERFLOW_CHECK() NOOP
da927450
JH		 6233#endif
6234
6235/*
6236 * Some nonpreemptive operating systems find it convenient to
6237 * check for asynchronous conditions after each op execution.
6238 * Keep this check simple, or it may slow down execution
6239 * massively.
6240 */
ce08f86c 6241
1d615522 6242#ifndef PERL_MICRO
4ffa73a3 6243# ifndef PERL_ASYNC_CHECK
5d9574c1 6244# define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX)
4ffa73a3 6245# endif
ce08f86c
NIS		 6246#endif
6247
da927450 6248#ifndef PERL_ASYNC_CHECK
1d615522 6249# define PERL_ASYNC_CHECK() NOOP
da927450
JH		 6250#endif
6251
6252/*
6253 * On some operating systems, a memory allocation may succeed,
6254 * but put the process too close to the system's comfort limit.
6255 * In this case, PERL_ALLOC_CHECK frees the pointer and sets
6256 * it to NULL.
6257 */
6258#ifndef PERL_ALLOC_CHECK
c2af87cb 6259#define PERL_ALLOC_CHECK(p) NOOP
da927450
JH		 6260#endif
6261
bd89102f
AD		 6262#ifdef HAS_SEM
6263# include <sys/ipc.h>
6264# include <sys/sem.h>
6265# ifndef HAS_UNION_SEMUN /* Provide the union semun. */
6266 union semun {
dbba660d
TC		 6267 int val;
6268 struct semid_ds *buf;
6269 unsigned short *array;
bd89102f
AD		 6270 };
6271# endif
6272# ifdef USE_SEMCTL_SEMUN
dbba660d
TC		 6273# ifdef IRIX32_SEMUN_BROKEN_BY_GCC
6274 union gccbug_semun {
6275 int val;
6276 struct semid_ds *buf;
6277 unsigned short *array;
6278 char __dummy[5];
6279 };
6280# define semun gccbug_semun
6281# endif
bd89102f
AD		 6282# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
6283# else
6284# ifdef USE_SEMCTL_SEMID_DS
e6f0bdd6
GS		 6285# ifdef EXTRA_F_IN_SEMUN_BUF
6286# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
6287# else
6288# define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
6289# endif
bd89102f
AD		 6290# endif
6291# endif
bd89102f 6292#endif
49f531da 6293
89ca4ac7
JH		 6294/*
6295 * Boilerplate macros for initializing and accessing interpreter-local
6296 * data from C. All statics in extensions should be reworked to use
7588b095
JH		 6297 * this, if you want to make the extension thread-safe. See
6298 * ext/XS/APItest/APItest.xs for an example of the use of these macros,
6299 * and perlxs.pod for more.
89ca4ac7
JH		 6300 *
6301 * Code that uses these macros is responsible for the following:
43a739c2
JH		 6302 * 1. #define MY_CXT_KEY to a unique string, e.g.
6303 * "DynaLoader::_guts" XS_VERSION
f16dd614 6304 * XXX in the current implementation, this string is ignored.
89ca4ac7
JH		 6305 * 2. Declare a typedef named my_cxt_t that is a structure that contains
6306 * all the data that needs to be interpreter-local.
6307 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
6308 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
6309 * (typically put in the BOOT: section).
6310 * 5. Use the members of the my_cxt_t structure everywhere as
6311 * MY_CXT.member.
6312 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
6313 * access MY_CXT.
6314 */
6315
fc958cd2 6316#if defined(PERL_IMPLICIT_CONTEXT)
89ca4ac7 6317
4eddb856 6318/* START_MY_CXT must appear in all extensions that define a my_cxt_t structure,
53d44271
JH		 6319 * right after the definition (i.e. at file scope). The non-threads
6320 * case below uses it to declare the data as static. */
00ab59c9
DM		 6321# ifdef PERL_GLOBAL_STRUCT_PRIVATE
6322# define START_MY_CXT
6323# define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
6324# define MY_CXT_INIT_ARG MY_CXT_KEY
6325# else
6326# define START_MY_CXT static int my_cxt_index = -1;
6327# define MY_CXT_INDEX my_cxt_index
6328# define MY_CXT_INIT_ARG &my_cxt_index
6329# endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
53d44271
JH		 6330
6331/* Creates and zeroes the per-interpreter data.
6332 * (We allocate my_cxtp in a Perl SV so that it will be released when
6333 * the interpreter goes away.) */
00ab59c9 6334# define MY_CXT_INIT \
53d44271 6335 my_cxt_t *my_cxtp = \
9f6df31a
Z		 6336 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6337 PERL_UNUSED_VAR(my_cxtp)
00ab59c9 6338# define MY_CXT_INIT_INTERP(my_perl) \
53d44271 6339 my_cxt_t *my_cxtp = \
9f6df31a
Z		 6340 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \
6341 PERL_UNUSED_VAR(my_cxtp)
53d44271
JH		 6342
6343/* This declaration should be used within all functions that use the
6344 * interpreter-local data. */
00ab59c9 6345# define dMY_CXT \
53d44271 6346 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
00ab59c9 6347# define dMY_CXT_INTERP(my_perl) \
53d44271
JH		 6348 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
6349
6350/* Clones the per-interpreter data. */
00ab59c9 6351# define MY_CXT_CLONE \
53d44271 6352 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
8b573070 6353 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \
ccaa51ca
DD		 6354 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \
6355 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t);
6356
53d44271 6357
53d44271 6358
89ca4ac7 6359/* This macro must be used to access members of the my_cxt_t structure.
870598ae 6360 * e.g. MY_CXT.some_data */
00ab59c9 6361# define MY_CXT (*my_cxtp)
89ca4ac7
JH		 6362
6363/* Judicious use of these macros can reduce the number of times dMY_CXT
6364 * is used. Use is similar to pTHX, aTHX etc. */
00ab59c9
DM		 6365# define pMY_CXT my_cxt_t *my_cxtp
6366# define pMY_CXT_ pMY_CXT,
6367# define _pMY_CXT ,pMY_CXT
6368# define aMY_CXT my_cxtp
6369# define aMY_CXT_ aMY_CXT,
6370# define _aMY_CXT ,aMY_CXT
89ca4ac7 6371
f16dd614 6372#else /* PERL_IMPLICIT_CONTEXT */
89ca4ac7 6373
00ab59c9
DM		 6374# define START_MY_CXT static my_cxt_t my_cxt;
6375# define dMY_CXT_SV dNOOP
6376# define dMY_CXT dNOOP
6377# define dMY_CXT_INTERP(my_perl) dNOOP
6378# define MY_CXT_INIT NOOP
6379# define MY_CXT_CLONE NOOP
6380# define MY_CXT my_cxt
6381
6382# define pMY_CXT void
6383# define pMY_CXT_
6384# define _pMY_CXT
6385# define aMY_CXT
6386# define aMY_CXT_
6387# define _aMY_CXT
89ca4ac7 6388
f16dd614 6389#endif /* !defined(PERL_IMPLICIT_CONTEXT) */
89ca4ac7 6390
9a34ef1d
GS		 6391#ifdef I_FCNTL
6392# include <fcntl.h>
9a34ef1d
GS		 6393#endif
6394
9cffb111
OS		 6395#ifdef __Lynx__
6396# include <fcntl.h>
6397#endif
6398
3c0208ad
AB		 6399#ifdef __amigaos4__
6400# undef FD_CLOEXEC /* a lie in AmigaOS */
6401#endif
6402
9a34ef1d
GS		 6403#ifdef I_SYS_FILE
6404# include <sys/file.h>
6405#endif
6406
fa0a29af 6407#if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
2ef53570
JH		 6408int flock(int fd, int op);
6409#endif
6410
fe52b3b7
GS		 6411#ifndef O_RDONLY
6412/* Assume UNIX defaults */
6413# define O_RDONLY 0000
6414# define O_WRONLY 0001
6415# define O_RDWR 0002
6416# define O_CREAT 0100
6417#endif
9a34ef1d 6418
16fe6d59
GS		 6419#ifndef O_BINARY
6420# define O_BINARY 0
6421#endif
6422
6423#ifndef O_TEXT
6424# define O_TEXT 0
6425#endif
6426
6ce75a77 6427#if O_TEXT != O_BINARY
38d96942 6428 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop,
6ce75a77 6429 * that is, you are somehow DOSish. */
b6c36746
NC		 6430# if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__)
6431 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
6432 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */
73250e76
JH		 6433 /* VOS has O_TEXT != O_BINARY, and they have effect,
6434 * but VOS always uses LF, never CRLF. */
6ce75a77
JH		 6435 /* If you have O_TEXT different from your O_BINARY but you still are
6436 * not a CRLF shop. */
35990314 6437# undef PERLIO_USING_CRLF
ec53fe4f
JH		 6438# else
6439 /* If you really are DOSish. */
6440# define PERLIO_USING_CRLF 1
6ce75a77
JH		 6441# endif
6442#endif
6443
4bc88a62
PS		 6444#ifdef I_LIBUTIL
6445# include <libutil.h> /* setproctitle() in some FreeBSDs */
6446#endif
6447
b4748376 6448#ifndef EXEC_ARGV_CAST
360ea906 6449#define EXEC_ARGV_CAST(x) (char **)x
b4748376
NIS		 6450#endif
6451
dd5dc04f
JH		 6452#define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not
6453 int). value returned in pointed-
6454 to UV */
6455#define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
d70489e1 6456#define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */
dd5dc04f
JH		 6457#define IS_NUMBER_NEG 0x08 /* leading minus sign */
6458#define IS_NUMBER_INFINITY 0x10 /* this is big */
aa8b85de 6459#define IS_NUMBER_NAN 0x20 /* this is not */
3f7602fa 6460#define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */
dd5dc04f
JH		 6461
6462#define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
6463
53305cf1
NC		 6464/* Input flags: */
6465#define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */
a4c04bdc 6466#define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */
94dd8549 6467#define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */
02470786
KW		 6468#define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large
6469 numbers which are <= UV_MAX */
3f7602fa
TC		 6470#define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing
6471 and set IS_NUMBER_TRAILING */
6472
53305cf1
NC		 6473/* Output flags: */
6474#define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
6475
2c4f7f0e
DM		 6476/* to let user control profiling */
6477#ifdef PERL_GPROF_CONTROL
6478extern void moncontrol(int);
6479#define PERL_GPROF_MONCONTROL(x) moncontrol(x)
6480#else
6481#define PERL_GPROF_MONCONTROL(x)
6482#endif
6483
ae0e3d3b
JH		 6484#ifdef UNDER_CE
6485#include "wince.h"
6486#endif
6487
6488/* ISO 6429 NEL - C1 control NExt Line */
6489/* See http://www.unicode.org/unicode/reports/tr13/ */
ec34087a 6490#define NEXT_LINE_CHAR NEXT_LINE_NATIVE
ae0e3d3b
JH		 6491
6492/* The UTF-8 bytes of the Unicode LS and PS, U+2028 and U+2029 */
6493#define UNICODE_LINE_SEPA_0 0xE2
6494#define UNICODE_LINE_SEPA_1 0x80
6495#define UNICODE_LINE_SEPA_2 0xA8
6496#define UNICODE_PARA_SEPA_0 0xE2
6497#define UNICODE_PARA_SEPA_1 0x80
6498#define UNICODE_PARA_SEPA_2 0xA9
6499
479b2847
GS		 6500#ifndef PIPESOCK_MODE
6501# define PIPESOCK_MODE
6502#endif
6503
460c8493
IZ		 6504#ifndef SOCKET_OPEN_MODE
6505# define SOCKET_OPEN_MODE PIPESOCK_MODE
6506#endif
6507
6508#ifndef PIPE_OPEN_MODE
6509# define PIPE_OPEN_MODE PIPESOCK_MODE
6510#endif
6511
7e8c5dac
HS		 6512#define PERL_MAGIC_UTF8_CACHESIZE 2
6513
a05d7ebb
JH		 6514#define PERL_UNICODE_STDIN_FLAG 0x0001
6515#define PERL_UNICODE_STDOUT_FLAG 0x0002
6516#define PERL_UNICODE_STDERR_FLAG 0x0004
a05d7ebb
JH		 6517#define PERL_UNICODE_IN_FLAG 0x0008
6518#define PERL_UNICODE_OUT_FLAG 0x0010
06e66572 6519#define PERL_UNICODE_ARGV_FLAG 0x0020
a05d7ebb
JH		 6520#define PERL_UNICODE_LOCALE_FLAG 0x0040
6521#define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */
5a22a2bb 6522#define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100
a05d7ebb 6523
06e66572
JH		 6524#define PERL_UNICODE_STD_FLAG \
6525 (PERL_UNICODE_STDIN_FLAG | \
6526 PERL_UNICODE_STDOUT_FLAG | \
6527 PERL_UNICODE_STDERR_FLAG)
6528
6529#define PERL_UNICODE_INOUT_FLAG \
6530 (PERL_UNICODE_IN_FLAG | \
6531 PERL_UNICODE_OUT_FLAG)
6532
6533#define PERL_UNICODE_DEFAULT_FLAGS \
a05d7ebb
JH		 6534 (PERL_UNICODE_STD_FLAG | \
6535 PERL_UNICODE_INOUT_FLAG | \
6536 PERL_UNICODE_LOCALE_FLAG)
6537
5a22a2bb 6538#define PERL_UNICODE_ALL_FLAGS 0x01ff
a05d7ebb
JH		 6539
6540#define PERL_UNICODE_STDIN 'I'
6541#define PERL_UNICODE_STDOUT 'O'
6542#define PERL_UNICODE_STDERR 'E'
6543#define PERL_UNICODE_STD 'S'
6544#define PERL_UNICODE_IN 'i'
6545#define PERL_UNICODE_OUT 'o'
6546#define PERL_UNICODE_INOUT 'D'
6547#define PERL_UNICODE_ARGV 'A'
6548#define PERL_UNICODE_LOCALE 'L'
6549#define PERL_UNICODE_WIDESYSCALLS 'W'
5a22a2bb 6550#define PERL_UNICODE_UTF8CACHEASSERT 'a'
a05d7ebb 6551
4ffa73a3
JH		 6552#define PERL_SIGNALS_UNSAFE_FLAG 0x0001
6553
32fdb065 6554/* Use instead of abs() since abs() forces its argument to be an int,
56c380de 6555 * but also beware since this evaluates its argument twice, so no x++. */
32fdb065
JH		 6556#define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
6557
3c0f78ca
JH		 6558#if defined(__DECC) && defined(__osf__)
6559#pragma message disable (mainparm) /* Perl uses the envp in main(). */
24801a4b
JH		 6560#endif
6561
e4dba786
NC		 6562#define do_open(g, n, l, a, rm, rp, sf) \
6563 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
9555a685 6564#ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
711aba4c 6565# define do_exec(cmd) do_exec3(cmd,0,0)
a9f96b3f 6566#endif
15871fce
NC		 6567#ifdef OS2
6568# define do_aexec Perl_do_aexec
6569#else
6570# define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0)
9555a685 6571#endif
e4dba786 6572
c8028aa6
TC		 6573/* check embedded \0 characters in pathnames passed to syscalls,
6574 but allow one ending \0 */
41188aa0 6575#define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name)))
c8028aa6 6576
41188aa0 6577#define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name))
c8028aa6 6578
53e89cff 6579#if defined(OEMVS) || defined(__amigaos4__)
2f3efc97
JH		 6580#define NO_ENV_ARRAY_IN_MAIN
6581#endif
6582
00f254e2
KW		 6583/* These are used by Perl_pv_escape() and Perl_pv_pretty()
6584 * are here so that they are available throughout the core
10edeb5d
JH		 6585 * NOTE that even though some are for _escape and some for _pretty
6586 * there must not be any clashes as the flags from _pretty are
6587 * passed straight through to _escape.
6588 */
6589
4420a417 6590#define PERL_PV_ESCAPE_QUOTE 0x000001
10edeb5d
JH		 6591#define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE
6592
4420a417
YO		 6593#define PERL_PV_PRETTY_ELLIPSES 0x000002
6594#define PERL_PV_PRETTY_LTGT 0x000004
6595#define PERL_PV_PRETTY_EXACTSIZE 0x000008
10edeb5d 6596
4420a417
YO		 6597#define PERL_PV_ESCAPE_UNI 0x000100
6598#define PERL_PV_ESCAPE_UNI_DETECT 0x000200
6599#define PERL_PV_ESCAPE_NONASCII 0x000400
6600#define PERL_PV_ESCAPE_FIRSTCHAR 0x000800
10edeb5d 6601
4420a417
YO		 6602#define PERL_PV_ESCAPE_ALL 0x001000
6603#define PERL_PV_ESCAPE_NOBACKSLASH 0x002000
6604#define PERL_PV_ESCAPE_NOCLEAR 0x004000
6605#define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR
6606#define PERL_PV_ESCAPE_RE 0x008000
10edeb5d 6607
4420a417 6608#define PERL_PV_ESCAPE_DWIM 0x010000
0eb335df 6609
881a015e 6610
10edeb5d 6611/* used by pv_display in dump.c*/
95b611b0 6612#define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
c89df6cf 6613#define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII
10edeb5d 6614
3fd106b1
JH		 6615#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \
6616 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \
6617 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6618# define DOUBLE_LITTLE_ENDIAN
6619#endif
6620
075bc527
JH		 6621#if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \
6622 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \
6623 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6624# define DOUBLE_BIG_ENDIAN
6625#endif
6626
804d4e64
JH		 6627#if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \
6628 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6629# define DOUBLE_MIX_ENDIAN
6630#endif
6631
63a6ab05
JH		 6632/* All the basic IEEE formats have the implicit bit,
6633 * except for the 80-bit extended formats, which will undef this. */
6634#define NV_IMPLICIT_BIT
6635
f03a9d38 6636#ifdef LONG_DOUBLEKIND
3fd106b1
JH		 6637
6638# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \
6639 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6640 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN
6641# define LONGDOUBLE_LITTLE_ENDIAN
6642# endif
6643
6644# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \
6645 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \
6646 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6647# define LONGDOUBLE_BIG_ENDIAN
6648# endif
6649
6650# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6651 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6652# define LONGDOUBLE_X86_80_BIT
63a6ab05
JH		 6653# ifdef USE_LONG_DOUBLE
6654# undef NV_IMPLICIT_BIT
6655# endif
3fd106b1
JH		 6656# endif
6657
6658# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN || \
6659 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6660# define LONGDOUBLE_DOUBLEDOUBLE
6661# endif
6662
f03a9d38 6663#endif /* LONG_DOUBLEKIND */
3fd106b1 6664
9e76e8dd
JH		 6665#ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */
6666# if defined(DOUBLE_LITTLE_ENDIAN)
6667# define NV_LITTLE_ENDIAN
6668# elif defined(DOUBLE_BIG_ENDIAN)
6669# define NV_BIG_ENDIAN
6670# elif defined(DOUBLE_MIX_ENDIAN) /* stretch */
6671# define NV_MIX_ENDIAN
6672# endif
6673#elif NVSIZE == DOUBLESIZE
d701dd28
JH		 6674# ifdef DOUBLE_LITTLE_ENDIAN
6675# define NV_LITTLE_ENDIAN
6676# endif
6677# ifdef DOUBLE_BIG_ENDIAN
6678# define NV_BIG_ENDIAN
6679# endif
804d4e64
JH		 6680# ifdef DOUBLE_MIX_ENDIAN
6681# define NV_MIX_ENDIAN
6682# endif
d701dd28
JH		 6683#elif NVSIZE == LONG_DOUBLESIZE
6684# ifdef LONGDOUBLE_LITTLE_ENDIAN
6685# define NV_LITTLE_ENDIAN
6686# endif
6687# ifdef LONGDOUBLE_BIG_ENDIAN
6688# define NV_BIG_ENDIAN
6689# endif
6690#endif
6691
5c255b3b
JH		 6692/* NaNs (not-a-numbers) can carry payload bits, in addition to
6693 * "nan-ness". Part of the payload is the quiet/signaling bit.
6694 * To back up a bit (harhar):
6695 *
6696 * For IEEE 754 64-bit formats [1]:
6697 *
6698 * s 000 (mantissa all-zero) zero
6699 * s 000 (mantissa non-zero) subnormals (denormals)
6700 * s 001 ... 7fe normals
6701 * s 7ff q nan
6702 *
6703 * For IEEE 754 128-bit formats:
6704 *
6705 * s 0000 (mantissa all-zero) zero
6706 * s 0000 (mantissa non-zero) subnormals (denormals)
6707 * s 0001 ... 7ffe normals
6708 * s 7fff q nan
6709 *
6710 * [1] this looks like big-endian, but applies equally to little-endian.
6711 *
6712 * s = Sign bit. Yes, zeros and nans can have negative sign,
6713 * the interpretation is application-specific.
6714 *
6715 * q = Quietness bit, the interpretation is platform-specific.
453b60f1 6716 * Most platforms have the most significant bit being one
5c255b3b
JH		 6717 * meaning quiet, but some (older mips, hppa) have the msb
6718 * being one meaning signaling. Note that the above means
6719 * that on most platforms there cannot be signaling nan with
453b60f1
JH		 6720 * zero payload because that is identical with infinity;
6721 * while conversely on older mips/hppa there cannot be a quiet nan
6722 * because that is identical with infinity.
6723 *
6724 * Moreover, whether there is any behavioral difference
6725 * between quiet and signaling NaNs, depends on the platform.
5c255b3b
JH		 6726 *
6727 * x86 80-bit extended precision is different, the mantissa bits:
6728 *
6729 * 63 62 61 30387+ pre-387 visual c
6730 * -------- ---- -------- --------
6731 * 0 0 0 invalid infinity
6732 * 0 0 1 invalid snan
6733 * 0 1 0 invalid snan
6734 * 0 1 1 invalid snan
6735 * 1 0 0 infinity snan 1.#INF
6736 * 1 0 1 snan 1.#SNAN
6737 * 1 1 0 qnan -1.#IND (x86 chooses this to negative)
6738 * 1 1 1 qnan 1.#QNAN
6739 *
6740 * This means that in this format there are 61 bits available
6741 * for the nan payload.
6742 *
3bbe6a60
JH		 6743 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87
6744 * simply cannot preserve the bit. You can either use the 80-bit
6745 * extended precision (long double, -Duselongdouble), or use x86-64.
6746 *
453b60f1
JH		 6747 * In all platforms, the payload bytes (and bits, some of them are
6748 * often in a partial byte) themselves can be either all zero (x86),
6749 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double
6750 * or in a double-double, the first half of the payload can follow the
6751 * native double, while in the second half the payload can be all
6752 * zeros. (Therefore the mask for payload bits is not necessarily
6753 * identical to bit complement of the NaN.) Another way of putting
6754 * this: the payload for the default NaN might not be zero.
6755 *
6756 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits
6757 * being 'packaged' in either 12 or 16 bytes) can be whatever random
6758 * garbage.
6759 *
6760 * Furthermore, the semantics of the sign bit on NaNs are platform-specific.
6761 * On normal floats, the sign bit being on means negative. But this may,
6762 * or may not, be reverted on NaNs: in other words, the default NaN might
6763 * have the sign bit on, and therefore look like negative if you look
6764 * at it at the bit level.
6765 *
6766 * NaN payloads are not propagated even on copies, or in arithmetics.
6767 * They *might* be, according to some rules, on your particular
6768 * cpu/os/compiler/libraries, but no guarantees.
6769 *
6770 * To summarize, on most platforms, and for 64-bit doubles
6771 * (using big-endian ordering here):
6772 *
6773 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet
6774 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet
6775 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling
6776 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling
6777 *
6778 * The C99 nan() is supposed to generate *quiet* NaNs.
6779 *
6780 * Note the asymmetry:
6781 * The 7FF0000000000000 is positive infinity,
6782 * the FFF0000000000000 is negative infinity.
6783 */
6784
6785/* NVMANTBITS is the number of _real_ mantissa bits in an NV.
5a14060a
JH		 6786 * For the standard IEEE 754 fp this number is usually one less that
6787 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't
6788 * real. For the 80-bit extended precision formats (x86*), the number
6789 * of mantissa bits... depends. For normal floats, it's 64. But for
6790 * the inf/nan, it's different (zero for inf, 61 for nan).
6791 * NVMANTBITS works for normal floats. */
6792
6793/* We do not want to include the quiet/signaling bit. */
6794#define NV_NAN_BITS (NVMANTBITS - 1)
5c255b3b 6795
f37aa828
JH		 6796#if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6797# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6798# define NV_NAN_QS_BYTE_OFFSET 13
6799# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6800# define NV_NAN_QS_BYTE_OFFSET 2
6801# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
6802# define NV_NAN_QS_BYTE_OFFSET 7
6803# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
6804# define NV_NAN_QS_BYTE_OFFSET 2
6805# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN
6806# define NV_NAN_QS_BYTE_OFFSET 13
6807# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6808# define NV_NAN_QS_BYTE_OFFSET 1
6809# else
6810# error "Unexpected long double format"
6811# endif
6812#else
6813# ifdef USE_QUADMATH
6814# ifdef NV_LITTLE_ENDIAN
6815# define NV_NAN_QS_BYTE_OFFSET 13
6816# elif defined(NV_BIG_ENDIAN)
6817# define NV_NAN_QS_BYTE_OFFSET 2
6818# else
6819# error "Unexpected quadmath format"
6820# endif
6821# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6822# define NV_NAN_QS_BYTE_OFFSET 2
6823# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6824# define NV_NAN_QS_BYTE_OFFSET 1
6825# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
6826# define NV_NAN_QS_BYTE_OFFSET 6
6827# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
6828# define NV_NAN_QS_BYTE_OFFSET 1
6829# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6830# define NV_NAN_QS_BYTE_OFFSET 13
6831# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6832# define NV_NAN_QS_BYTE_OFFSET 2
6833# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
6834# define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */
6835# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
6836# define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */
6837# else
6838# error "Unexpected double format"
6839# endif
6840#endif
6841/* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */
6842#define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET])
6843/* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET
6844 * for the quiet/signaling */
6845#if defined(USE_LONG_DOUBLE) && \
6846 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \
6847 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN)
6848# define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */
6849#elif defined(USE_LONG_DOUBLE) && \
6850 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN || \
6851 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN)
5a14060a 6852# define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */
f37aa828 6853#else
5a14060a 6854# define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */
f37aa828
JH		 6855#endif
6856#define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT))
6857/* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV
6858 * (bytes ordered big-endianly) for the quiet/signaling bit
6859 * for the quiet/signaling */
6860#define NV_NAN_QS_BIT_OFFSET \
6861 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT))
8122f9aa
JH		 6862/* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being
6863 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined)
6864 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */
f37aa828
JH		 6865#define NV_NAN_QS_QUIET \
6866 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT)
6867#define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET))
6868#define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT)
6869/* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN,
6870 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN.
6871 * Note however that these do not check whether the nvp is a NaN. */
6872#define NV_NAN_IS_QUIET(nvp) \
6873 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0))
6874#define NV_NAN_IS_SIGNALING(nvp) \
6875 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT))
6876#define NV_NAN_SET_QUIET(nvp) \
6877 (NV_NAN_QS_QUIET ? \
6878 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \
6879 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT))
6880#define NV_NAN_SET_SIGNALING(nvp) \
6881 (NV_NAN_QS_QUIET ? \
6882 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \
6883 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT))
6884#define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT)
6885
d3137b5f
JH		 6886/* NV_NAN_PAYLOAD_MASK: masking the nan payload bits.
6887 *
6888 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes.
6889 * 0xFF means "don't go here".*/
6890
6891/* Shorthands to avoid typoses. */
6892#define NV_NAN_PAYLOAD_PERM_0_TO_7 \
6893 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
6894#define NV_NAN_PAYLOAD_PERM_7_TO_0 \
6895 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6896#define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \
6897 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
6898 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00
6899#define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \
6900 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6901 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF
6902#define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \
6903 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6904 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6905#define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \
6906 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \
6907 NV_NAN_PAYLOAD_PERM_7_TO_0
6908#define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \
6909 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00
6910#define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \
6911 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF
6912#define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \
6913 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
6914#define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \
6915 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0
6916
6917#if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE
6918# if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
6919# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6920# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6921# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
6922# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6923# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6924# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
a7ab4d96
JH		 6925# if LONG_DOUBLESIZE == 10
6926# define NV_NAN_PAYLOAD_MASK \
6927 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6928 0x00, 0x00
6929# define NV_NAN_PAYLOAD_PERM \
6930 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF
6931# elif LONG_DOUBLESIZE == 12
d3137b5f
JH		 6932# define NV_NAN_PAYLOAD_MASK \
6933 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6934 0x00, 0x00, 0x00, 0x00
6935# define NV_NAN_PAYLOAD_PERM \
6936 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF
6937# elif LONG_DOUBLESIZE == 16
6938# define NV_NAN_PAYLOAD_MASK \
6939 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \
6940 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6941# define NV_NAN_PAYLOAD_PERM \
6942 NV_NAN_PAYLOAD_PERM_0_TO_7, \
6943 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6944# else
6945# error "Unexpected x86 80-bit little-endian long double format"
6946# endif
6947# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
a7ab4d96
JH		 6948# if LONG_DOUBLESIZE == 10
6949# define NV_NAN_PAYLOAD_MASK \
6950 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6951 0xff, 0xff
6952# define NV_NAN_PAYLOAD_PERM \
6953 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF
6954# elif LONG_DOUBLESIZE == 12
d3137b5f
JH		 6955# define NV_NAN_PAYLOAD_MASK \
6956 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6957 0xff, 0xff, 0x00, 0x00
6958# define NV_NAN_PAYLOAD_PERM \
6959 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF
6960# elif LONG_DOUBLESIZE == 16
6961# define NV_NAN_PAYLOAD_MASK \
6962 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \
6963 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
6964# define NV_NAN_PAYLOAD_PERM \
6965 NV_NAN_PAYLOAD_PERM_7_TO_0, \
6966 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
6967# else
a7ab4d96 6968# error "Unexpected x86 80-bit big-endian long double format"
d3137b5f
JH		 6969# endif
6970# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN
6971/* For double-double we assume only the first double is used for NaN. */
6972# define NV_NAN_PAYLOAD_MASK \
6973 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
6974# define NV_NAN_PAYLOAD_PERM \
6975 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
6976# elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
6977# define NV_NAN_PAYLOAD_MASK \
6978 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
6979# define NV_NAN_PAYLOAD_PERM \
6980 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
6981# else
6982# error "Unexpected long double format"
6983# endif
6984#else
6985# ifdef USE_QUADMATH /* quadmath is not long double */
6986# ifdef NV_LITTLE_ENDIAN
6987# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
6988# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
6989# elif defined(NV_BIG_ENDIAN)
6990# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
6991# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
6992# else
6993# error "Unexpected quadmath format"
6994# endif
6995# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN
6996# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00
6997# define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF
6998# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN
6999# define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff
7000# define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0
7001# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN
7002# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE
7003# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE
7004# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN
7005# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE
7006# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE
7007# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
7008# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE
7009# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE
7010# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
7011# define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE
7012# define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE
7013# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE
7014# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff
7015# define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3
7016# elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE
7017# define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff
7018# define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4
7019# else
7020# error "Unexpected double format"
7021# endif
7022#endif
10edeb5d
JH		 7023/*
7024
7025 (KEEP THIS LAST IN perl.h!)
7026
7027 Mention
d460ef45 7028
43999f95 7029 NV_PRESERVES_UV
fe749a9f 7030
fe749a9f
JH		 7031 HAS_MKSTEMP
7032 HAS_MKSTEMPS
7033 HAS_MKDTEMP
7034
49dabb45
JH		 7035 HAS_GETCWD
7036
d59b5429 7037 HAS_MMAP
fe749a9f
JH		 7038 HAS_MPROTECT
7039 HAS_MSYNC
1e8c3fde 7040 HAS_MADVISE
fe749a9f
JH		 7041 HAS_MUNMAP
7042 I_SYSMMAN
7043 Mmap_t
7044
6b4667fc
A		 7045 NVef
7046 NVff
7047 NVgf
7048
4e0554ec 7049 HAS_UALARM
2d736872 7050 HAS_USLEEP
4e0554ec
JH		 7051
7052 HAS_SETITIMER
7053 HAS_GETITIMER
7054
7055 HAS_SENDMSG
7056 HAS_RECVMSG
7057 HAS_READV
7058 HAS_WRITEV
7059 I_SYSUIO
7060 HAS_STRUCT_MSGHDR
7061 HAS_STRUCT_CMSGHDR
7062
2765b840 7063 HAS_NL_LANGINFO
0a7020c9 7064
ae0e3d3b 7065 HAS_DIRFD
2765b840 7066
10edeb5d 7067 so that Configure picks them up.
ab3bbdeb 7068
10edeb5d 7069 (KEEP THIS LAST IN perl.h!)
3df15adc 7070
10edeb5d 7071*/
3df15adc 7072
85e6fe83 7073#endif /* Include guard */
e9a8c099
MHM		 7074
7075/*
14d04a33 7076 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 7077 */
Unnamed repository; edit this file 'description' to name the repository.