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corrected bad_type() prototype.
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1987-1997, Larry Wall
a687059c 4 *
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5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
8d063cd8 8 */
85e6fe83
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9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
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13#ifdef PERL_FOR_X2P
14/*
15 * This file is being used for x2p stuff.
16 * Above symbol is defined via -D in 'x2p/Makefile.SH'
17 * Decouple x2p stuff from some of perls more extreme eccentricities.
18 */
760ac839 19#undef EMBED
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20#undef NO_EMBED
21#define NO_EMBED
22#undef MULTIPLICITY
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23#undef USE_STDIO
24#define USE_STDIO
25#endif /* PERL_FOR_X2P */
26
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27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
728e2803
PP
32/*
33 * STMT_START { statements; } STMT_END;
34 * can be used as a single statement, as in
35 * if (x) STMT_START { ... } STMT_END; else ...
36 *
37 * Trying to select a version that gives no warnings...
38 */
39#if !(defined(STMT_START) && defined(STMT_END))
169d69b2 40# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
728e2803
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41# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
42# define STMT_END )
43# else
44 /* Now which other defined()s do we need here ??? */
45# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
46# define STMT_START if (1)
47# define STMT_END else (void)0
48# else
49# define STMT_START do
50# define STMT_END while (0)
51# endif
52# endif
53#endif
54
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55#ifdef USE_THREADS
56#include <pthread.h>
57#endif
58
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59/*
60 * SOFT_CAST can be used for args to prototyped functions to retain some
61 * type checking; it only casts if the compiler does not know prototypes.
62 */
63#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
64#define SOFT_CAST(type)
65#else
66#define SOFT_CAST(type) (type)
67#endif
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68
69#ifndef BYTEORDER
70# define BYTEORDER 0x1234
71#endif
72
73/* Overall memory policy? */
74#ifndef CONSERVATIVE
75# define LIBERAL 1
76#endif
77
78/*
79 * The following contortions are brought to you on behalf of all the
80 * standards, semi-standards, de facto standards, not-so-de-facto standards
81 * of the world, as well as all the other botches anyone ever thought of.
82 * The basic theory is that if we work hard enough here, the rest of the
83 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
84 */
ac58e20f 85
ee0007ab 86/* define this once if either system, instead of cluttering up the src */
68dc0745 87#if defined(MSDOS) || defined(atarist) || defined(WIN32)
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88#define DOSISH 1
89#endif
90
a0d0e21e 91#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
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92# define STANDARD_C 1
93#endif
94
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95#if defined(__cplusplus) || defined(WIN32)
96# define DONT_DECLARE_STD 1
97#endif
98
352d5a3a 99#if defined(HASVOLATILE) || defined(STANDARD_C)
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100# ifdef __cplusplus
101# define VOL // to temporarily suppress warnings
102# else
103# define VOL volatile
104# endif
663a0e37 105#else
79072805 106# define VOL
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107#endif
108
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109#define TAINT (tainted = TRUE)
110#define TAINT_NOT (tainted = FALSE)
111#define TAINT_IF(c) if (c) { tainted = TRUE; }
112#define TAINT_ENV() if (tainting) { taint_env(); }
113#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 114
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115/* XXX All process group stuff is handled in pp_sys.c. Should these
116 defines move there? If so, I could simplify this a lot. --AD 9/96.
117*/
118/* Process group stuff changed from traditional BSD to POSIX.
119 perlfunc.pod documents the traditional BSD-style syntax, so we'll
120 try to preserve that, if possible.
121*/
122#ifdef HAS_SETPGID
123# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 124#else
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125# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
126# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
127# else
128# ifdef HAS_SETPGRP2 /* DG/UX */
129# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
130# endif
131# endif
132#endif
133#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
134# define HAS_SETPGRP /* Well, effectively it does . . . */
135#endif
136
137/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
138 our life easier :-) so we'll try it.
139*/
140#ifdef HAS_GETPGID
141# define BSD_GETPGRP(pid) getpgid((pid))
142#else
143# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
144# define BSD_GETPGRP(pid) getpgrp((pid))
145# else
146# ifdef HAS_GETPGRP2 /* DG/UX */
147# define BSD_GETPGRP(pid) getpgrp2((pid))
148# endif
149# endif
150#endif
151#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
152# define HAS_GETPGRP /* Well, effectively it does . . . */
153#endif
154
155/* These are not exact synonyms, since setpgrp() and getpgrp() may
156 have different behaviors, but perl.h used to define USE_BSDPGRP
157 (prior to 5.003_05) so some extension might depend on it.
158*/
159#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
160# ifndef USE_BSDPGRP
161# define USE_BSDPGRP
162# endif
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163#endif
164
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165#ifndef _TYPES_ /* If types.h defines this it's easy. */
166# ifndef major /* Does everyone's types.h define this? */
167# include <sys/types.h>
c07a80fd 168# endif
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169#endif
170
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171#ifdef __cplusplus
172# ifndef I_STDARG
173# define I_STDARG 1
174# endif
175#endif
176
177#ifdef I_STDARG
178# include <stdarg.h>
179#else
180# ifdef I_VARARGS
181# include <varargs.h>
182# endif
183#endif
184
185#include "perlio.h"
0c30d9ec 186
4633a7c4 187#ifdef USE_NEXT_CTYPE
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188
189#if NX_CURRENT_COMPILER_RELEASE >= 400
190#include <objc/NXCType.h>
191#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 192#include <appkit/NXCType.h>
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193#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
194
195#else /* !USE_NEXT_CTYPE */
fe14fcc3 196#include <ctype.h>
0c30d9ec 197#endif /* USE_NEXT_CTYPE */
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198
199#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
200#undef METHOD
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201#endif
202
4633a7c4 203#ifdef I_LOCALE
36477c24 204# include <locale.h>
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205#endif
206
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207#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
208# define USE_LOCALE
209# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
210 && defined(HAS_STRXFRM)
211# define USE_LOCALE_COLLATE
212# endif
213# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
214# define USE_LOCALE_CTYPE
215# endif
216# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
217# define USE_LOCALE_NUMERIC
218# endif
219#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 220
fe14fcc3 221#include <setjmp.h>
79072805 222
a0d0e21e 223#ifdef I_SYS_PARAM
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224# ifdef PARAM_NEEDS_TYPES
225# include <sys/types.h>
226# endif
227# include <sys/param.h>
352d5a3a 228#endif
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229
230
231/* Use all the "standard" definitions? */
a0d0e21e 232#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 233# include <stdlib.h>
ff68c719 234#endif
03a14243 235
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236/* This comes after <stdlib.h> so we don't try to change the standard
237 * library prototypes; we'll use our own in proto.h instead. */
03a14243 238
4633a7c4 239#ifdef MYMALLOC
55497cff 240
4633a7c4 241# ifdef HIDEMYMALLOC
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242# define malloc Mymalloc
243# define calloc Mycalloc
4633a7c4 244# define realloc Myremalloc
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245# define free Myfree
246# endif
247# ifdef EMBEDMYMALLOC
248# define malloc Perl_malloc
249# define calloc Perl_calloc
250# define realloc Perl_realloc
251# define free Perl_free
4633a7c4 252# endif
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253
254# undef safemalloc
255# undef safecalloc
256# undef saferealloc
257# undef safefree
258# define safemalloc malloc
259# define safecalloc calloc
4633a7c4 260# define saferealloc realloc
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261# define safefree free
262
263#endif /* MYMALLOC */
4633a7c4 264
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265#define MEM_SIZE Size_t
266
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267#if defined(STANDARD_C) && defined(I_STDDEF)
268# include <stddef.h>
71be2cbc 269# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 270#else
71be2cbc 271# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
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272#endif
273
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274#if defined(I_STRING) || defined(__cplusplus)
275# include <string.h>
276#else
277# include <strings.h>
278#endif
279
280#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
281#define strchr index
282#define strrchr rindex
283#endif
284
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285#ifdef I_MEMORY
286# include <memory.h>
287#endif
288
fe14fcc3 289#ifdef HAS_MEMCPY
85e6fe83 290# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 291# ifndef memcpy
a0d0e21e 292 extern char * memcpy _((char*, char*, int));
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293# endif
294# endif
295#else
296# ifndef memcpy
297# ifdef HAS_BCOPY
298# define memcpy(d,s,l) bcopy(s,d,l)
299# else
300# define memcpy(d,s,l) my_bcopy(s,d,l)
301# endif
302# endif
303#endif /* HAS_MEMCPY */
fe14fcc3 304
ee0007ab 305#ifdef HAS_MEMSET
85e6fe83 306# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 307# ifndef memset
a0d0e21e 308 extern char *memset _((char*, int, int));
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309# endif
310# endif
ee0007ab 311#else
fc36a67e 312# define memset(d,c,l) my_memset(d,c,l)
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313#endif /* HAS_MEMSET */
314
85e6fe83 315#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 316# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
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317# define memmove(d,s,l) bcopy(s,d,l)
318# else
2304df62 319# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 320# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 321# else
79072805 322# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 323# endif
352d5a3a 324# endif
d9d8d8de 325#endif
ee0007ab 326
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327#if defined(mips) && defined(ultrix) && !defined(__STDC__)
328# undef HAS_MEMCMP
329#endif
330
331#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 332# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 333# ifndef memcmp
a0d0e21e 334 extern int memcmp _((char*, char*, int));
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335# endif
336# endif
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337# ifdef BUGGY_MSC
338 # pragma function(memcmp)
339# endif
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340#else
341# ifndef memcmp
ecfc5424 342# define memcmp my_memcmp
352d5a3a 343# endif
36477c24 344#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 345
fc36a67e 346#ifndef memzero
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347# ifdef HAS_MEMSET
348# define memzero(d,l) memset(d,0,l)
79072805 349# else
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350# ifdef HAS_BZERO
351# define memzero(d,l) bzero(d,l)
79072805 352# else
fc36a67e 353# define memzero(d,l) my_bzero(d,l)
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354# endif
355# endif
d9d8d8de 356#endif
378cc40b 357
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358#ifndef HAS_BCMP
359# ifndef bcmp
360# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 361# endif
36477c24 362#endif /* !HAS_BCMP */
378cc40b 363
ae986130 364#ifdef I_NETINET_IN
79072805 365# include <netinet/in.h>
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366#endif
367
1aef975c 368#ifdef I_SYS_STAT
8d063cd8 369#include <sys/stat.h>
1aef975c 370#endif
79072805 371
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372/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
373 like UTekV) are broken, sometimes giving false positives. Undefine
374 them here and let the code below set them to proper values.
375
376 The ghs macro stands for GreenHills Software C-1.8.5 which
377 is the C compiler for sysV88 and the various derivatives.
378 This header file bug is corrected in gcc-2.5.8 and later versions.
379 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
380
381#if defined(uts) || (defined(m88k) && defined(ghs))
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382# undef S_ISDIR
383# undef S_ISCHR
384# undef S_ISBLK
385# undef S_ISREG
386# undef S_ISFIFO
387# undef S_ISLNK
ee0007ab 388#endif
135863df 389
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390#ifdef I_TIME
391# include <time.h>
ffed7fef 392#endif
663a0e37 393
fe14fcc3 394#ifdef I_SYS_TIME
85e6fe83 395# ifdef I_SYS_TIME_KERNEL
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396# define KERNEL
397# endif
398# include <sys/time.h>
85e6fe83 399# ifdef I_SYS_TIME_KERNEL
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400# undef KERNEL
401# endif
a687059c 402#endif
135863df 403
55497cff 404#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 405# include <sys/times.h>
d9d8d8de 406#endif
8d063cd8 407
fe14fcc3 408#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 409# undef HAS_STRERROR
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410#endif
411
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412#ifndef HAS_MKFIFO
413# ifndef mkfifo
414# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
415# endif
416#endif /* !HAS_MKFIFO */
417
663a0e37 418#include <errno.h>
ed6116ce 419#ifdef HAS_SOCKET
85e6fe83 420# ifdef I_NET_ERRNO
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421# include <net/errno.h>
422# endif
423#endif
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424
425#ifdef VMS
426# define SETERRNO(errcode,vmserrcode) \
427 STMT_START { \
428 set_errno(errcode); \
429 set_vaxc_errno(vmserrcode); \
430 } STMT_END
748a9306 431#else
f86702cc 432# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 433#endif
ed6116ce 434
55497cff 435#ifndef errno
79072805 436 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 437#endif
663a0e37 438
2304df62 439#ifdef HAS_STRERROR
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440# ifdef VMS
441 char *strerror _((int,...));
442# else
68dc0745 443#ifndef DONT_DECLARE_STD
a0d0e21e 444 char *strerror _((int));
68dc0745 445#endif
a0d0e21e 446# endif
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447# ifndef Strerror
448# define Strerror strerror
449# endif
450#else
451# ifdef HAS_SYS_ERRLIST
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452 extern int sys_nerr;
453 extern char *sys_errlist[];
2304df62
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454# ifndef Strerror
455# define Strerror(e) \
79072805 456 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 457# endif
79072805 458# endif
35c8bce7 459#endif
663a0e37 460
2304df62 461#ifdef I_SYS_IOCTL
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462# ifndef _IOCTL_
463# include <sys/ioctl.h>
464# endif
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465#endif
466
ee0007ab 467#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
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468# ifdef HAS_SOCKETPAIR
469# undef HAS_SOCKETPAIR
470# endif
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471# ifdef I_NDBM
472# undef I_NDBM
79072805 473# endif
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474#endif
475
a687059c 476#if INTSIZE == 2
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477# define htoni htons
478# define ntohi ntohs
a687059c 479#else
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480# define htoni htonl
481# define ntohi ntohl
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482#endif
483
a0d0e21e 484/* Configure already sets Direntry_t */
35c8bce7 485#if defined(I_DIRENT)
663a0e37 486# include <dirent.h>
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487# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
488# include <sys/dir.h>
489# endif
ae986130 490#else
fe14fcc3 491# ifdef I_SYS_NDIR
79a0689e 492# include <sys/ndir.h>
663a0e37 493# else
fe14fcc3 494# ifdef I_SYS_DIR
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495# ifdef hp9000s500
496# include <ndir.h> /* may be wrong in the future */
497# else
498# include <sys/dir.h>
499# endif
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500# endif
501# endif
4633a7c4 502#endif
a687059c 503
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504#ifdef FPUTS_BOTCH
505/* work around botch in SunOS 4.0.1 and 4.0.2 */
506# ifndef fputs
79072805 507# define fputs(sv,fp) fprintf(fp,"%s",sv)
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508# endif
509#endif
510
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511/*
512 * The following gobbledygook brought to you on behalf of __STDC__.
513 * (I could just use #ifndef __STDC__, but this is more bulletproof
514 * in the face of half-implementations.)
515 */
516
517#ifndef S_IFMT
518# ifdef _S_IFMT
519# define S_IFMT _S_IFMT
520# else
521# define S_IFMT 0170000
522# endif
523#endif
524
525#ifndef S_ISDIR
526# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
527#endif
528
529#ifndef S_ISCHR
530# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
531#endif
532
533#ifndef S_ISBLK
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534# ifdef S_IFBLK
535# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
536# else
537# define S_ISBLK(m) (0)
538# endif
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539#endif
540
541#ifndef S_ISREG
542# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
543#endif
544
545#ifndef S_ISFIFO
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546# ifdef S_IFIFO
547# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
548# else
549# define S_ISFIFO(m) (0)
550# endif
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551#endif
552
553#ifndef S_ISLNK
554# ifdef _S_ISLNK
555# define S_ISLNK(m) _S_ISLNK(m)
556# else
557# ifdef _S_IFLNK
558# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
559# else
560# ifdef S_IFLNK
561# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
562# else
563# define S_ISLNK(m) (0)
564# endif
565# endif
566# endif
567#endif
568
569#ifndef S_ISSOCK
570# ifdef _S_ISSOCK
571# define S_ISSOCK(m) _S_ISSOCK(m)
572# else
573# ifdef _S_IFSOCK
574# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
575# else
576# ifdef S_IFSOCK
577# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
578# else
579# define S_ISSOCK(m) (0)
580# endif
581# endif
582# endif
583#endif
584
585#ifndef S_IRUSR
586# ifdef S_IREAD
587# define S_IRUSR S_IREAD
588# define S_IWUSR S_IWRITE
589# define S_IXUSR S_IEXEC
590# else
591# define S_IRUSR 0400
592# define S_IWUSR 0200
593# define S_IXUSR 0100
594# endif
595# define S_IRGRP (S_IRUSR>>3)
596# define S_IWGRP (S_IWUSR>>3)
597# define S_IXGRP (S_IXUSR>>3)
598# define S_IROTH (S_IRUSR>>6)
599# define S_IWOTH (S_IWUSR>>6)
600# define S_IXOTH (S_IXUSR>>6)
601#endif
602
603#ifndef S_ISUID
604# define S_ISUID 04000
605#endif
606
607#ifndef S_ISGID
608# define S_ISGID 02000
609#endif
610
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611#ifdef ff_next
612# undef ff_next
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613#endif
614
a0d0e21e 615#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
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616# define SLOPPYDIVIDE
617#endif
618
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619#ifdef UV
620#undef UV
621#endif
622
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623/* XXX QUAD stuff is not currently supported on most systems.
624 Specifically, perl internals don't support long long. Among
625 the many problems is that some compilers support long long,
626 but the underlying library functions (such as sprintf) don't.
627 Some things do work (such as quad pack/unpack on convex);
628 also some systems use long long for the fpos_t typedef. That
629 seems to work too.
630
631 The IV type is supposed to be long enough to hold any integral
632 value or a pointer.
633 --Andy Dougherty August 1996
634*/
635
f86702cc
PP
636#ifdef cray
637# define Quad_t int
638#else
639# ifdef convex
640# define Quad_t long long
45d8adaa 641# else
ff0cee69 642# if BYTEORDER > 0xFFFF
ecfc5424 643# define Quad_t long
45d8adaa
LW
644# endif
645# endif
f86702cc
PP
646#endif
647
648#ifdef Quad_t
649# define HAS_QUAD
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650 typedef Quad_t IV;
651 typedef unsigned Quad_t UV;
27d4fb96
PP
652# define IV_MAX PERL_QUAD_MAX
653# define IV_MIN PERL_QUAD_MIN
654# define UV_MAX PERL_UQUAD_MAX
655# define UV_MIN PERL_UQUAD_MIN
79072805 656#else
748a9306
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657 typedef long IV;
658 typedef unsigned long UV;
27d4fb96
PP
659# define IV_MAX PERL_LONG_MAX
660# define IV_MIN PERL_LONG_MIN
661# define UV_MAX PERL_ULONG_MAX
662# define UV_MIN PERL_ULONG_MIN
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663#endif
664
760ac839
LW
665/* Previously these definitions used hardcoded figures.
666 * It is hoped these formula are more portable, although
667 * no data one way or another is presently known to me.
668 * The "PERL_" names are used because these calculated constants
669 * do not meet the ANSI requirements for LONG_MAX, etc., which
670 * need to be constants acceptable to #if - kja
671 * define PERL_LONG_MAX 2147483647L
672 * define PERL_LONG_MIN (-LONG_MAX - 1)
673 * define PERL ULONG_MAX 4294967295L
674 */
675
676#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
677# include <limits.h>
678#else
679#ifdef I_VALUES
680# include <values.h>
681#endif
682#endif
683
99abf803
PP
684/*
685 * Try to figure out max and min values for the integral types. THE CORRECT
686 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
687 * following hacks are used if neither limits.h or values.h provide them:
688 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
689 * for types < int: (unsigned TYPE)~(unsigned)0
690 * The argument to ~ must be unsigned so that later signed->unsigned
691 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
692 * and it must not be smaller than int because ~ does integral promotion.
693 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
694 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
695 * The latter is a hack which happens to work on some machines but
696 * does *not* catch any random system, or things like integer types
697 * with NaN if that is possible.
698 *
699 * All of the types are explicitly cast to prevent accidental loss of
700 * numeric range, and in the hope that they will be less likely to confuse
701 * over-eager optimizers.
702 *
703 */
27d4fb96 704
99abf803
PP
705#define PERL_UCHAR_MIN ((unsigned char)0)
706
707#ifdef UCHAR_MAX
708# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 709#else
99abf803
PP
710# ifdef MAXUCHAR
711# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 712# else
99abf803 713# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
714# endif
715#endif
99abf803
PP
716
717/*
718 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
719 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
720 * depending on local options. Until Configure detects this (or at least
721 * detects whether the "signed" keyword is available) the CHAR ranges
722 * will not be included. UCHAR functions normally.
723 * - kja
724 */
27d4fb96 725
99abf803
PP
726#define PERL_USHORT_MIN ((unsigned short)0)
727
728#ifdef USHORT_MAX
729# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 730#else
99abf803
PP
731# ifdef MAXUSHORT
732# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 733# else
99abf803 734# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96
PP
735# endif
736#endif
737
27d4fb96 738#ifdef SHORT_MAX
99abf803 739# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
740#else
741# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 742# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 743# else
99abf803 744# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96
PP
745# endif
746#endif
747
748#ifdef SHORT_MIN
99abf803 749# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
750#else
751# ifdef MINSHORT
99abf803 752# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96
PP
753# else
754# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
755# endif
756#endif
757
99abf803
PP
758#ifdef UINT_MAX
759# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 760#else
99abf803
PP
761# ifdef MAXUINT
762# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 763# else
99abf803 764# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
765# endif
766#endif
767
99abf803 768#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
769
770#ifdef INT_MAX
99abf803 771# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
772#else
773# ifdef MAXINT /* Often used in <values.h> */
99abf803 774# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 775# else
99abf803 776# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
777# endif
778#endif
779
780#ifdef INT_MIN
99abf803 781# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
782#else
783# ifdef MININT
99abf803 784# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
785# else
786# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
787# endif
788#endif
789
99abf803
PP
790#ifdef ULONG_MAX
791# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 792#else
99abf803
PP
793# ifdef MAXULONG
794# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 795# else
99abf803 796# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
797# endif
798#endif
799
99abf803 800#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 801
760ac839 802#ifdef LONG_MAX
99abf803 803# define PERL_LONG_MAX ((long)LONG_MAX)
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LW
804#else
805# ifdef MAXLONG /* Often used in <values.h> */
99abf803 806# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 807# else
99abf803 808# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
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809# endif
810#endif
811
812#ifdef LONG_MIN
99abf803 813# define PERL_LONG_MIN ((long)LONG_MIN)
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LW
814#else
815# ifdef MINLONG
99abf803 816# define PERL_LONG_MIN ((long)MINLONG)
760ac839 817# else
27d4fb96 818# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
819# endif
820#endif
821
99abf803
PP
822#ifdef HAS_QUAD
823
824# ifdef UQUAD_MAX
825# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 826# else
99abf803 827# define PERL_UQUAD_MAX (~(UV)0)
760ac839 828# endif
760ac839 829
99abf803 830# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 831
27d4fb96 832# ifdef QUAD_MAX
99abf803 833# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 834# else
99abf803 835# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96
PP
836# endif
837
838# ifdef QUAD_MIN
99abf803 839# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 840# else
a6e633de 841# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96
PP
842# endif
843
79072805
LW
844#endif
845
ee0007ab 846typedef MEM_SIZE STRLEN;
450a55e4 847
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848typedef struct op OP;
849typedef struct cop COP;
850typedef struct unop UNOP;
851typedef struct binop BINOP;
852typedef struct listop LISTOP;
853typedef struct logop LOGOP;
854typedef struct condop CONDOP;
855typedef struct pmop PMOP;
856typedef struct svop SVOP;
857typedef struct gvop GVOP;
858typedef struct pvop PVOP;
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859typedef struct loop LOOP;
860
861typedef struct Outrec Outrec;
93a17b20 862typedef struct interpreter PerlInterpreter;
79072805 863typedef struct ff FF;
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864typedef struct sv SV;
865typedef struct av AV;
866typedef struct hv HV;
867typedef struct cv CV;
378cc40b 868typedef struct regexp REGEXP;
79072805 869typedef struct gp GP;
0c30d9ec 870typedef struct gv GV;
8990e307 871typedef struct io IO;
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LW
872typedef struct context CONTEXT;
873typedef struct block BLOCK;
874
875typedef struct magic MAGIC;
ed6116ce 876typedef struct xrv XRV;
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LW
877typedef struct xpv XPV;
878typedef struct xpviv XPVIV;
ff68c719 879typedef struct xpvuv XPVUV;
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880typedef struct xpvnv XPVNV;
881typedef struct xpvmg XPVMG;
882typedef struct xpvlv XPVLV;
883typedef struct xpvav XPVAV;
884typedef struct xpvhv XPVHV;
885typedef struct xpvgv XPVGV;
886typedef struct xpvcv XPVCV;
887typedef struct xpvbm XPVBM;
888typedef struct xpvfm XPVFM;
8990e307 889typedef struct xpvio XPVIO;
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890typedef struct mgvtbl MGVTBL;
891typedef union any ANY;
8d063cd8 892
378cc40b 893#include "handy.h"
a0d0e21e 894
16d20bd9
AD
895typedef I32 (*filter_t) _((int, SV *, int));
896#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
897#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
898#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
899
748a9306 900#ifdef DOSISH
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LW
901# if defined(OS2)
902# include "os2ish.h"
903# else
748a9306 904# include "dosish.h"
4633a7c4 905# endif
a0d0e21e 906#else
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LW
907# if defined(VMS)
908# include "vmsish.h"
909# else
0c30d9ec
PP
910# if defined(PLAN9)
911# include "./plan9/plan9ish.h"
912# else
913# include "unixish.h"
914# endif
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LW
915# endif
916#endif
3fc1aec6 917
68dc0745
PP
918#ifdef VMS
919# define STATUS_NATIVE statusvalue_vms
920# define STATUS_NATIVE_EXPORT \
921 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
922# define STATUS_NATIVE_SET(n) \
923 STMT_START { \
924 statusvalue_vms = (n); \
925 if ((I32)statusvalue_vms == -1) \
926 statusvalue = -1; \
927 else if (statusvalue_vms & STS$M_SUCCESS) \
928 statusvalue = 0; \
929 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
930 statusvalue = 1 << 8; \
931 else \
932 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
933 } STMT_END
934# define STATUS_POSIX statusvalue
935# ifdef VMSISH_STATUS
936# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
937# else
938# define STATUS_CURRENT STATUS_POSIX
939# endif
940# define STATUS_POSIX_SET(n) \
941 STMT_START { \
942 statusvalue = (n); \
943 if (statusvalue != -1) { \
944 statusvalue &= 0xFFFF; \
945 statusvalue_vms = statusvalue ? 44 : 1; \
946 } \
947 else statusvalue_vms = -1; \
948 } STMT_END
949# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
950# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
951#else
952# define STATUS_NATIVE STATUS_POSIX
953# define STATUS_NATIVE_EXPORT STATUS_POSIX
954# define STATUS_NATIVE_SET STATUS_POSIX_SET
955# define STATUS_POSIX statusvalue
956# define STATUS_POSIX_SET(n) \
957 STMT_START { \
958 statusvalue = (n); \
959 if (statusvalue != -1) \
960 statusvalue &= 0xFFFF; \
961 } STMT_END
962# define STATUS_CURRENT STATUS_POSIX
963# define STATUS_ALL_SUCCESS (statusvalue = 0)
964# define STATUS_ALL_FAILURE (statusvalue = 1)
965#endif
966
3fc1aec6
PP
967/* Some unistd.h's give a prototype for pause() even though
968 HAS_PAUSE ends up undefined. This causes the #define
969 below to be rejected by the compmiler. Sigh.
970*/
971#ifdef HAS_PAUSE
972#define Pause pause
973#else
974#define Pause() sleep((32767<<16)+32767)
748a9306
LW
975#endif
976
977#ifndef IOCPARM_LEN
978# ifdef IOCPARM_MASK
979 /* on BSDish systes we're safe */
980# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
981# else
982 /* otherwise guess at what's safe */
983# define IOCPARM_LEN(x) 256
984# endif
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LW
985#endif
986
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LW
987union any {
988 void* any_ptr;
989 I32 any_i32;
a0d0e21e 990 IV any_iv;
85e6fe83 991 long any_long;
a0d0e21e 992 void (*any_dptr) _((void*));
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LW
993};
994
11343788
MB
995#ifdef USE_THREADS
996#define ARGSproto struct thread *
997#else
998#define ARGSproto void
999#endif /* USE_THREADS */
1000
5aabfad6
PP
1001/* Work around some cygwin32 problems with importing global symbols */
1002#if defined(CYGWIN32) && defined(DLLIMPORT)
1003# include "cw32imp.h"
1004#endif
1005
378cc40b 1006#include "regexp.h"
79072805 1007#include "sv.h"
378cc40b 1008#include "util.h"
8d063cd8 1009#include "form.h"
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1010#include "gv.h"
1011#include "cv.h"
1012#include "opcode.h"
1013#include "op.h"
1014#include "cop.h"
1015#include "av.h"
1016#include "hv.h"
1017#include "mg.h"
1018#include "scope.h"
8d063cd8 1019
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LW
1020/* work around some libPW problems */
1021#ifdef DOINIT
1022EXT char Error[1];
1023#endif
1024
450a55e4 1025#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW
1026# define I286
1027#endif
1028
fe14fcc3
LW
1029#if defined(htonl) && !defined(HAS_HTONL)
1030#define HAS_HTONL
ae986130 1031#endif
fe14fcc3
LW
1032#if defined(htons) && !defined(HAS_HTONS)
1033#define HAS_HTONS
ae986130 1034#endif
fe14fcc3
LW
1035#if defined(ntohl) && !defined(HAS_NTOHL)
1036#define HAS_NTOHL
ae986130 1037#endif
fe14fcc3
LW
1038#if defined(ntohs) && !defined(HAS_NTOHS)
1039#define HAS_NTOHS
ae986130 1040#endif
fe14fcc3 1041#ifndef HAS_HTONL
d9d8d8de 1042#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW
1043#define HAS_HTONS
1044#define HAS_HTONL
1045#define HAS_NTOHS
1046#define HAS_NTOHL
a687059c
LW
1047#define MYSWAP
1048#define htons my_swap
1049#define htonl my_htonl
1050#define ntohs my_swap
1051#define ntohl my_ntohl
1052#endif
1053#else
d9d8d8de 1054#if (BYTEORDER & 0xffff) == 0x4321
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LW
1055#undef HAS_HTONS
1056#undef HAS_HTONL
1057#undef HAS_NTOHS
1058#undef HAS_NTOHL
a687059c
LW
1059#endif
1060#endif
1061
988174c1
LW
1062/*
1063 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1064 * -DWS
1065 */
1066#if BYTEORDER != 0x1234
1067# define HAS_VTOHL
1068# define HAS_VTOHS
1069# define HAS_HTOVL
1070# define HAS_HTOVS
1071# if BYTEORDER == 0x4321
1072# define vtohl(x) ((((x)&0xFF)<<24) \
1073 +(((x)>>24)&0xFF) \
1074 +(((x)&0x0000FF00)<<8) \
1075 +(((x)&0x00FF0000)>>8) )
1076# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1077# define htovl(x) vtohl(x)
1078# define htovs(x) vtohs(x)
1079# endif
1080 /* otherwise default to functions in util.c */
1081#endif
1082
0f85fab0 1083#ifdef CASTNEGFLOAT
79072805 1084#define U_S(what) ((U16)(what))
0f85fab0 1085#define U_I(what) ((unsigned int)(what))
79072805 1086#define U_L(what) ((U32)(what))
0f85fab0 1087#else
a6e633de
PP
1088# ifdef __cplusplus
1089 extern "C" {
1090# endif
a0d0e21e 1091U32 cast_ulong _((double));
a6e633de
PP
1092# ifdef __cplusplus
1093 }
1094# endif
232e078e
AD
1095#define U_S(what) ((U16)cast_ulong((double)(what)))
1096#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1097#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW
1098#endif
1099
ed6116ce
LW
1100#ifdef CASTI32
1101#define I_32(what) ((I32)(what))
a0d0e21e 1102#define I_V(what) ((IV)(what))
5d94fbed 1103#define U_V(what) ((UV)(what))
ed6116ce 1104#else
a6e633de
PP
1105# ifdef __cplusplus
1106 extern "C" {
1107# endif
a0d0e21e 1108I32 cast_i32 _((double));
a0d0e21e 1109IV cast_iv _((double));
5d94fbed 1110UV cast_uv _((double));
a6e633de
PP
1111# ifdef __cplusplus
1112 }
1113# endif
1114#define I_32(what) (cast_i32((double)(what)))
1115#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1116#define U_V(what) (cast_uv((double)(what)))
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LW
1117#endif
1118
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LW
1119struct Outrec {
1120 I32 o_lines;
d9d8d8de 1121 char *o_str;
79072805 1122 U32 o_len;
8d063cd8
LW
1123};
1124
352d5a3a
LW
1125#ifndef MAXSYSFD
1126# define MAXSYSFD 2
1127#endif
ee0007ab 1128
f82b3d41
PP
1129#ifndef TMPPATH
1130# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1131#endif
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LW
1132
1133#ifndef __cplusplus
a0d0e21e
LW
1134Uid_t getuid _((void));
1135Uid_t geteuid _((void));
1136Gid_t getgid _((void));
1137Gid_t getegid _((void));
79072805 1138#endif
8d063cd8
LW
1139
1140#ifdef DEBUGGING
0c30d9ec 1141#ifndef Perl_debug_log
760ac839 1142#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1143#endif
d96024cf 1144#define YYDEBUG 1
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LW
1145#define DEB(a) a
1146#define DEBUG(a) if (debug) a
1147#define DEBUG_p(a) if (debug & 1) a
1148#define DEBUG_s(a) if (debug & 2) a
1149#define DEBUG_l(a) if (debug & 4) a
1150#define DEBUG_t(a) if (debug & 8) a
1151#define DEBUG_o(a) if (debug & 16) a
1152#define DEBUG_c(a) if (debug & 32) a
1153#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1154#define DEBUG_m(a) if (curinterp && debug & 128) a
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1155#define DEBUG_f(a) if (debug & 256) a
1156#define DEBUG_r(a) if (debug & 512) a
1157#define DEBUG_x(a) if (debug & 1024) a
1158#define DEBUG_u(a) if (debug & 2048) a
1159#define DEBUG_L(a) if (debug & 4096) a
1160#define DEBUG_H(a) if (debug & 8192) a
1161#define DEBUG_X(a) if (debug & 16384) a
8990e307 1162#define DEBUG_D(a) if (debug & 32768) a
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LW
1163#else
1164#define DEB(a)
1165#define DEBUG(a)
1166#define DEBUG_p(a)
1167#define DEBUG_s(a)
1168#define DEBUG_l(a)
1169#define DEBUG_t(a)
1170#define DEBUG_o(a)
1171#define DEBUG_c(a)
1172#define DEBUG_P(a)
1173#define DEBUG_m(a)
1174#define DEBUG_f(a)
1175#define DEBUG_r(a)
1176#define DEBUG_x(a)
1177#define DEBUG_u(a)
1178#define DEBUG_L(a)
1179#define DEBUG_H(a)
1180#define DEBUG_X(a)
8990e307 1181#define DEBUG_D(a)
8d063cd8 1182#endif
fe14fcc3 1183#define YYMAXDEPTH 300
8d063cd8 1184
a6e633de 1185#ifndef assert /* <assert.h> might have been included somehow */
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LW
1186#define assert(what) DEB( { \
1187 if (!(what)) { \
463ee0b2 1188 croak("Assertion failed: file \"%s\", line %d", \
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LW
1189 __FILE__, __LINE__); \
1190 exit(1); \
1191 }})
a6e633de 1192#endif
8d063cd8 1193
450a55e4 1194struct ufuncs {
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LW
1195 I32 (*uf_val)_((IV, SV*));
1196 I32 (*uf_set)_((IV, SV*));
1197 IV uf_index;
450a55e4
LW
1198};
1199
fe14fcc3 1200/* Fix these up for __STDC__ */
68dc0745 1201#ifndef DONT_DECLARE_STD
a0d0e21e
LW
1202char *mktemp _((char*));
1203double atof _((const char*));
1204#endif
79072805 1205
352d5a3a 1206#ifndef STANDARD_C
fe14fcc3 1207/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1208Time_t time();
8d063cd8 1209struct tm *gmtime(), *localtime();
93a17b20 1210char *strchr(), *strrchr();
378cc40b 1211char *strcpy(), *strcat();
352d5a3a 1212#endif /* ! STANDARD_C */
8d063cd8 1213
79072805
LW
1214
1215#ifdef I_MATH
1216# include <math.h>
1217#else
1218# ifdef __cplusplus
1219 extern "C" {
1220# endif
a0d0e21e 1221 double exp _((double));
a0d0e21e 1222 double log _((double));
c635e13b 1223 double log10 _((double));
a0d0e21e 1224 double sqrt _((double));
c635e13b
PP
1225 double frexp _((double,int*));
1226 double ldexp _((double,int));
a0d0e21e
LW
1227 double modf _((double,double*));
1228 double sin _((double));
1229 double cos _((double));
1230 double atan2 _((double,double));
1231 double pow _((double,double));
79072805
LW
1232# ifdef __cplusplus
1233 };
1234# endif
1235#endif
1236
a0d0e21e 1237#ifndef __cplusplus
3fc1aec6
PP
1238#ifdef __NeXT__ /* or whatever catches all NeXTs */
1239char *crypt (); /* Maybe more hosts will need the unprototyped version */
1240#else
a0d0e21e 1241char *crypt _((const char*, const char*));
3fc1aec6 1242#endif
68dc0745 1243#ifndef DONT_DECLARE_STD
1e422769 1244#ifndef getenv
a0d0e21e 1245char *getenv _((const char*));
1e422769 1246#endif
a0d0e21e 1247Off_t lseek _((int,Off_t,int));
68dc0745 1248#endif
a0d0e21e
LW
1249char *getlogin _((void));
1250#endif
79072805 1251
16d20bd9 1252#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1253#define UNLINK unlnk
a0d0e21e 1254I32 unlnk _((char*));
8d063cd8
LW
1255#else
1256#define UNLINK unlink
1257#endif
a687059c 1258
fe14fcc3 1259#ifndef HAS_SETREUID
85e6fe83
LW
1260# ifdef HAS_SETRESUID
1261# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1262# define HAS_SETREUID
1263# endif
a687059c 1264#endif
fe14fcc3 1265#ifndef HAS_SETREGID
85e6fe83
LW
1266# ifdef HAS_SETRESGID
1267# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1268# define HAS_SETREGID
1269# endif
a687059c 1270#endif
ee0007ab 1271
ff68c719
PP
1272typedef Signal_t (*Sighandler_t) _((int));
1273
1274#ifdef HAS_SIGACTION
1275typedef struct sigaction Sigsave_t;
1276#else
1277typedef Sighandler_t Sigsave_t;
1278#endif
1279
ee0007ab
LW
1280#define SCAN_DEF 0
1281#define SCAN_TR 1
1282#define SCAN_REPL 2
79072805
LW
1283
1284#ifdef DEBUGGING
4633a7c4 1285# ifndef register
a0d0e21e
LW
1286# define register
1287# endif
c07a80fd 1288# ifdef MYMALLOC
55497cff
PP
1289# ifndef DEBUGGING_MSTATS
1290# define DEBUGGING_MSTATS
1291# endif
c07a80fd 1292# endif
a0d0e21e 1293# define PAD_SV(po) pad_sv(po)
79072805 1294#else
a0d0e21e 1295# define PAD_SV(po) curpad[po]
79072805
LW
1296#endif
1297
1298/****************/
1299/* Truly global */
1300/****************/
1301
1302/* global state */
a0d0e21e 1303EXT PerlInterpreter * curinterp; /* currently running interpreter */
11343788
MB
1304#ifdef USE_THREADS
1305EXT pthread_key_t thr_key; /* For per-thread struct thread ptr */
1306EXT pthread_mutex_t sv_mutex; /* Mutex for allocating SVs in sv.c */
1307EXT pthread_mutex_t malloc_mutex; /* Mutex for malloc */
1308EXT pthread_mutex_t eval_mutex; /* Mutex for doeval */
1309EXT pthread_cond_t eval_cond; /* Condition variable for doeval */
1310EXT struct thread * eval_owner; /* Owner thread for doeval */
1311EXT int nthreads; /* Number of threads currently */
1312EXT pthread_mutex_t nthreads_mutex; /* Mutex for nthreads */
1313EXT pthread_cond_t nthreads_cond; /* Condition variable for nthreads */
1314#endif /* USE_THREADS */
1315
0c30d9ec
PP
1316/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1317#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1318#ifndef DONT_DECLARE_STD
79072805 1319extern char ** environ; /* environment variables supplied via exec */
a0d0e21e 1320#endif
0c30d9ec
PP
1321#else
1322# if defined(NeXT) && defined(__DYNAMIC__)
1323
1324# include <mach-o/dyld.h>
1325EXT char *** environ_pointer;
1326# define environ (*environ_pointer)
1327# endif
1328#endif /* environ processing */
1329
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LW
1330EXT int uid; /* current real user id */
1331EXT int euid; /* current effective user id */
1332EXT int gid; /* current real group id */
1333EXT int egid; /* current effective group id */
1334EXT bool nomemok; /* let malloc context handle nomem */
1335EXT U32 an; /* malloc sequence number */
463ee0b2 1336EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1337EXT U16 op_seqmax; /* op sequence number */
8990e307 1338EXT U32 evalseq; /* eval sequence number */
463ee0b2 1339EXT U32 sub_generation; /* inc to force methods to be looked up again */
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LW
1340EXT char ** origenviron;
1341EXT U32 origalen;
44a8e56a 1342EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1343EXT U32 * profiledata;
84ea024a 1344EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1345EXT char * osname; /* operating system */
ff68c719 1346EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1347
a0d0e21e
LW
1348EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1349EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW
1350EXT double * xnv_root; /* free xnv list--shared by interpreters */
1351EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1352EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1353EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd
PP
1354EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1355EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1356
79072805
LW
1357/* Stack for currently executing thread--context switch must handle this. */
1358EXT SV ** stack_base; /* stack->array_ary */
1359EXT SV ** stack_sp; /* stack pointer now */
1360EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1361
1362/* likewise for these */
1363
1364EXT OP * op; /* current op--oughta be in a global register */
1365
1366EXT I32 * scopestack; /* blocks we've entered */
1367EXT I32 scopestack_ix;
1368EXT I32 scopestack_max;
1369
1370EXT ANY* savestack; /* to save non-local values on */
1371EXT I32 savestack_ix;
1372EXT I32 savestack_max;
1373
1374EXT OP ** retstack; /* returns we've pushed */
1375EXT I32 retstack_ix;
1376EXT I32 retstack_max;
1377
1378EXT I32 * markstack; /* stackmarks we're remembering */
1379EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1380EXT I32 * markstack_max; /* stackmarks we're remembering */
1381
1382EXT SV ** curpad;
1383
1384/* temp space */
1385EXT SV * Sv;
1386EXT XPV * Xpv;
79072805
LW
1387EXT char tokenbuf[256];
1388EXT struct stat statbuf;
ecfc5424 1389#ifdef HAS_TIMES
79072805
LW
1390EXT struct tms timesbuf;
1391#endif
463ee0b2 1392EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW
1393
1394/* for tmp use in stupid debuggers */
1395EXT int * di;
1396EXT short * ds;
1397EXT char * dc;
1398
1399/* handy constants */
71be2cbc
PP
1400EXTCONST char * Yes INIT("1");
1401EXTCONST char * No INIT("");
1402EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1403EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1404EXTCONST char * vert INIT("|");
79072805 1405
71be2cbc 1406EXTCONST char warn_uninit[]
a0d0e21e 1407 INIT("Use of uninitialized value");
71be2cbc 1408EXTCONST char warn_nosemi[]
463ee0b2 1409 INIT("Semicolon seems to be missing");
71be2cbc 1410EXTCONST char warn_reserved[]
463ee0b2 1411 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1412EXTCONST char warn_nl[]
93a17b20 1413 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1414EXTCONST char no_wrongref[]
a0d0e21e 1415 INIT("Can't use %s ref as %s ref");
71be2cbc 1416EXTCONST char no_symref[]
748a9306 1417 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1418EXTCONST char no_usym[]
8990e307 1419 INIT("Can't use an undefined value as %s reference");
71be2cbc 1420EXTCONST char no_aelem[]
93a17b20 1421 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1422EXTCONST char no_helem[]
93a17b20 1423 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1424EXTCONST char no_modify[]
93a17b20 1425 INIT("Modification of a read-only value attempted");
71be2cbc 1426EXTCONST char no_mem[]
93a17b20 1427 INIT("Out of memory!\n");
71be2cbc 1428EXTCONST char no_security[]
463ee0b2 1429 INIT("Insecure dependency in %s%s");
71be2cbc 1430EXTCONST char no_sock_func[]
93a17b20 1431 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1432EXTCONST char no_dir_func[]
93a17b20 1433 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1434EXTCONST char no_func[]
93a17b20 1435 INIT("The %s function is unimplemented");
71be2cbc 1436EXTCONST char no_myglob[]
748a9306 1437 INIT("\"my\" variable %s can't be in a package");
93a17b20 1438
79072805
LW
1439EXT SV sv_undef;
1440EXT SV sv_no;
1441EXT SV sv_yes;
1442#ifdef CSH
1443 EXT char * cshname INIT(CSH);
1444 EXT I32 cshlen;
1445#endif
1446
1447#ifdef DOINIT
8e07c86e
AD
1448EXT char *sig_name[] = { SIG_NAME };
1449EXT int sig_num[] = { SIG_NUM };
0c30d9ec
PP
1450EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1451EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW
1452#else
1453EXT char *sig_name[];
8e07c86e 1454EXT int sig_num[];
0c30d9ec
PP
1455EXT SV * psig_ptr[];
1456EXT SV * psig_name[];
79072805
LW
1457#endif
1458
bbce6d69
PP
1459/* fast case folding tables */
1460
79072805 1461#ifdef DOINIT
36477c24 1462EXTCONST unsigned char fold[] = {
79072805
LW
1463 0, 1, 2, 3, 4, 5, 6, 7,
1464 8, 9, 10, 11, 12, 13, 14, 15,
1465 16, 17, 18, 19, 20, 21, 22, 23,
1466 24, 25, 26, 27, 28, 29, 30, 31,
1467 32, 33, 34, 35, 36, 37, 38, 39,
1468 40, 41, 42, 43, 44, 45, 46, 47,
1469 48, 49, 50, 51, 52, 53, 54, 55,
1470 56, 57, 58, 59, 60, 61, 62, 63,
1471 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1472 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1473 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1474 'x', 'y', 'z', 91, 92, 93, 94, 95,
1475 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1476 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1477 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1478 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1479 128, 129, 130, 131, 132, 133, 134, 135,
1480 136, 137, 138, 139, 140, 141, 142, 143,
1481 144, 145, 146, 147, 148, 149, 150, 151,
1482 152, 153, 154, 155, 156, 157, 158, 159,
1483 160, 161, 162, 163, 164, 165, 166, 167,
1484 168, 169, 170, 171, 172, 173, 174, 175,
1485 176, 177, 178, 179, 180, 181, 182, 183,
1486 184, 185, 186, 187, 188, 189, 190, 191,
1487 192, 193, 194, 195, 196, 197, 198, 199,
1488 200, 201, 202, 203, 204, 205, 206, 207,
1489 208, 209, 210, 211, 212, 213, 214, 215,
1490 216, 217, 218, 219, 220, 221, 222, 223,
1491 224, 225, 226, 227, 228, 229, 230, 231,
1492 232, 233, 234, 235, 236, 237, 238, 239,
1493 240, 241, 242, 243, 244, 245, 246, 247,
1494 248, 249, 250, 251, 252, 253, 254, 255
1495};
1496#else
71be2cbc 1497EXTCONST unsigned char fold[];
79072805
LW
1498#endif
1499
1500#ifdef DOINIT
bbce6d69 1501EXT unsigned char fold_locale[] = {
79072805
LW
1502 0, 1, 2, 3, 4, 5, 6, 7,
1503 8, 9, 10, 11, 12, 13, 14, 15,
1504 16, 17, 18, 19, 20, 21, 22, 23,
1505 24, 25, 26, 27, 28, 29, 30, 31,
1506 32, 33, 34, 35, 36, 37, 38, 39,
1507 40, 41, 42, 43, 44, 45, 46, 47,
1508 48, 49, 50, 51, 52, 53, 54, 55,
1509 56, 57, 58, 59, 60, 61, 62, 63,
1510 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1511 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1512 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1513 'x', 'y', 'z', 91, 92, 93, 94, 95,
1514 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1515 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1516 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1517 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1518 128, 129, 130, 131, 132, 133, 134, 135,
1519 136, 137, 138, 139, 140, 141, 142, 143,
1520 144, 145, 146, 147, 148, 149, 150, 151,
1521 152, 153, 154, 155, 156, 157, 158, 159,
1522 160, 161, 162, 163, 164, 165, 166, 167,
1523 168, 169, 170, 171, 172, 173, 174, 175,
1524 176, 177, 178, 179, 180, 181, 182, 183,
1525 184, 185, 186, 187, 188, 189, 190, 191,
1526 192, 193, 194, 195, 196, 197, 198, 199,
1527 200, 201, 202, 203, 204, 205, 206, 207,
1528 208, 209, 210, 211, 212, 213, 214, 215,
1529 216, 217, 218, 219, 220, 221, 222, 223,
1530 224, 225, 226, 227, 228, 229, 230, 231,
1531 232, 233, 234, 235, 236, 237, 238, 239,
1532 240, 241, 242, 243, 244, 245, 246, 247,
1533 248, 249, 250, 251, 252, 253, 254, 255
1534};
1535#else
bbce6d69 1536EXT unsigned char fold_locale[];
79072805
LW
1537#endif
1538
1539#ifdef DOINIT
71be2cbc 1540EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1541 1, 2, 84, 151, 154, 155, 156, 157,
1542 165, 246, 250, 3, 158, 7, 18, 29,
1543 40, 51, 62, 73, 85, 96, 107, 118,
1544 129, 140, 147, 148, 149, 150, 152, 153,
1545 255, 182, 224, 205, 174, 176, 180, 217,
1546 233, 232, 236, 187, 235, 228, 234, 226,
1547 222, 219, 211, 195, 188, 193, 185, 184,
1548 191, 183, 201, 229, 181, 220, 194, 162,
1549 163, 208, 186, 202, 200, 218, 198, 179,
1550 178, 214, 166, 170, 207, 199, 209, 206,
1551 204, 160, 212, 216, 215, 192, 175, 173,
1552 243, 172, 161, 190, 203, 189, 164, 230,
1553 167, 248, 227, 244, 242, 255, 241, 231,
1554 240, 253, 169, 210, 245, 237, 249, 247,
1555 239, 168, 252, 251, 254, 238, 223, 221,
1556 213, 225, 177, 197, 171, 196, 159, 4,
1557 5, 6, 8, 9, 10, 11, 12, 13,
1558 14, 15, 16, 17, 19, 20, 21, 22,
1559 23, 24, 25, 26, 27, 28, 30, 31,
1560 32, 33, 34, 35, 36, 37, 38, 39,
1561 41, 42, 43, 44, 45, 46, 47, 48,
1562 49, 50, 52, 53, 54, 55, 56, 57,
1563 58, 59, 60, 61, 63, 64, 65, 66,
1564 67, 68, 69, 70, 71, 72, 74, 75,
1565 76, 77, 78, 79, 80, 81, 82, 83,
1566 86, 87, 88, 89, 90, 91, 92, 93,
1567 94, 95, 97, 98, 99, 100, 101, 102,
1568 103, 104, 105, 106, 108, 109, 110, 111,
1569 112, 113, 114, 115, 116, 117, 119, 120,
1570 121, 122, 123, 124, 125, 126, 127, 128,
1571 130, 131, 132, 133, 134, 135, 136, 137,
1572 138, 139, 141, 142, 143, 144, 145, 146
1573};
1574#else
71be2cbc 1575EXTCONST unsigned char freq[];
79072805
LW
1576#endif
1577
8990e307
LW
1578#ifdef DEBUGGING
1579#ifdef DOINIT
71be2cbc 1580EXTCONST char* block_type[] = {
8990e307
LW
1581 "NULL",
1582 "SUB",
1583 "EVAL",
1584 "LOOP",
1585 "SUBST",
1586 "BLOCK",
1587};
1588#else
71be2cbc 1589EXTCONST char* block_type[];
8990e307
LW
1590#endif
1591#endif
1592
79072805
LW
1593/*****************************************************************************/
1594/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1595/*****************************************************************************/
8990e307 1596/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1597
a0d0e21e
LW
1598#include "perly.h"
1599
79072805
LW
1600typedef enum {
1601 XOPERATOR,
1602 XTERM,
79072805 1603 XREF,
8990e307 1604 XSTATE,
a0d0e21e
LW
1605 XBLOCK,
1606 XTERMBLOCK
79072805
LW
1607} expectation;
1608
a0d0e21e
LW
1609EXT U32 lex_state; /* next token is determined */
1610EXT U32 lex_defer; /* state after determined token */
1611EXT expectation lex_expect; /* expect after determined token */
1612EXT I32 lex_brackets; /* bracket count */
1613EXT I32 lex_formbrack; /* bracket count at outer format level */
1614EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1615EXT I32 lex_casemods; /* casemod count */
1616EXT I32 lex_dojoin; /* doing an array interpolation */
1617EXT I32 lex_starts; /* how many interps done on level */
1618EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1619EXT SV * lex_repl; /* runtime replacement from s/// */
1620EXT OP * lex_op; /* extra info to pass back on op */
1621EXT OP * lex_inpat; /* in pattern $) and $| are special */
1622EXT I32 lex_inwhat; /* what kind of quoting are we in */
1623EXT char * lex_brackstack; /* what kind of brackets to pop */
1624EXT char * lex_casestack; /* what kind of case mods in effect */
1625
1626/* What we know when we're in LEX_KNOWNEXT state. */
1627EXT YYSTYPE nextval[5]; /* value of next token, if any */
1628EXT I32 nexttype[5]; /* type of next token */
1629EXT I32 nexttoke;
1630
760ac839 1631EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1632EXT SV * linestr;
1633EXT char * bufptr;
1634EXT char * oldbufptr;
1635EXT char * oldoldbufptr;
1636EXT char * bufend;
8990e307 1637EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1638EXT AV * rsfp_filters;
79072805
LW
1639
1640EXT I32 multi_start; /* 1st line of multi-line string */
1641EXT I32 multi_end; /* last line of multi-line string */
1642EXT I32 multi_open; /* delimiter of said string */
1643EXT I32 multi_close; /* delimiter of said string */
1644
1645EXT GV * scrgv;
1646EXT I32 error_count; /* how many errors so far, max 10 */
1647EXT I32 subline; /* line this subroutine began on */
1648EXT SV * subname; /* name of current subroutine */
1649
748a9306 1650EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1651EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1652EXT AV * comppad_name; /* variable names for "my" variables */
1653EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1654EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1655EXT I32 min_intro_pending;/* start of vars to introduce */
1656EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1657EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1658EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1659EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW
1660EXT COP compiling;
1661
79072805
LW
1662EXT I32 thisexpr; /* name id for nothing_in_common() */
1663EXT char * last_uni; /* position of last named-unary operator */
1664EXT char * last_lop; /* position of last list operator */
8990e307 1665EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1666EXT bool in_my; /* we're compiling a "my" declaration */
c750a3ec 1667EXT HV * in_my_stash; /* declared class of this "my" declaration */
79072805
LW
1668#ifdef FCRYPT
1669EXT I32 cryptseen; /* has fast crypt() been initialized? */
1670#endif
1671
85e6fe83
LW
1672EXT U32 hints; /* various compilation flags */
1673
1674 /* Note: the lowest 8 bits are reserved for
1675 stuffing into op->op_private */
1676#define HINT_INTEGER 0x00000001
1677#define HINT_STRICT_REFS 0x00000002
1678
1679#define HINT_BLOCK_SCOPE 0x00000100
1680#define HINT_STRICT_SUBS 0x00000200
1681#define HINT_STRICT_VARS 0x00000400
bbce6d69 1682#define HINT_LOCALE 0x00000800
85e6fe83 1683
79072805
LW
1684/**************************************************************************/
1685/* This regexp stuff is global since it always happens within 1 expr eval */
1686/**************************************************************************/
1687
1688EXT char * regprecomp; /* uncompiled string. */
1689EXT char * regparse; /* Input-scan pointer. */
1690EXT char * regxend; /* End of input for compile */
1691EXT I32 regnpar; /* () count. */
1692EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1693EXT I32 regsize; /* Code size. */
a0d0e21e 1694EXT I32 regnaughty; /* How bad is this pattern? */
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1695EXT I32 regsawback; /* Did we see \1, ...? */
1696
1697EXT char * reginput; /* String-input pointer. */
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1698EXT char * regbol; /* Beginning of input, for ^ check. */
1699EXT char * regeol; /* End of input, for $ check. */
1700EXT char ** regstartp; /* Pointer to startp array. */
1701EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1702EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1703EXT char * regtill; /* How far we are required to go. */
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LW
1704EXT U16 regflags; /* are we folding, multilining? */
1705EXT char regprev; /* char before regbol, \n if none */
79072805 1706
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1707EXT bool do_undump; /* -u or dump seen? */
1708EXT VOL U32 debug;
1709
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1710/***********************************************/
1711/* Global only to current interpreter instance */
1712/***********************************************/
1713
8990e307 1714#ifdef MULTIPLICITY
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1715#define IEXT
1716#define IINIT(x)
1717struct interpreter {
1718#else
1719#define IEXT EXT
1720#define IINIT(x) INIT(x)
1721#endif
1722
1723/* pseudo environmental stuff */
1724IEXT int Iorigargc;
1725IEXT char ** Iorigargv;
1726IEXT GV * Ienvgv;
1727IEXT GV * Isiggv;
1728IEXT GV * Iincgv;
1729IEXT char * Iorigfilename;
748a9306
LW
1730IEXT SV * Idiehook;
1731IEXT SV * Iwarnhook;
1732IEXT SV * Iparsehook;
79072805 1733
c07a80fd
PP
1734/* Various states of an input record separator SV (rs, nrs) */
1735#define RsSNARF(sv) (! SvOK(sv))
1736#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1737#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1738
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1739/* switches */
1740IEXT char * Icddir;
1741IEXT bool Iminus_c;
a5f75d66 1742IEXT char Ipatchlevel[10];
728e2803 1743IEXT char ** Ilocalpatches;
c07a80fd 1744IEXT SV * Inrs;
2304df62 1745IEXT char * Isplitstr IINIT(" ");
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1746IEXT bool Ipreprocess;
1747IEXT bool Iminus_n;
1748IEXT bool Iminus_p;
1749IEXT bool Iminus_l;
1750IEXT bool Iminus_a;
2304df62 1751IEXT bool Iminus_F;
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1752IEXT bool Idoswitches;
1753IEXT bool Idowarn;
1754IEXT bool Idoextract;
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LW
1755IEXT bool Isawampersand; /* must save all match strings */
1756IEXT bool Isawstudy; /* do fbm_instr on all strings */
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LW
1757IEXT bool Isawvec;
1758IEXT bool Iunsafe;
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LW
1759IEXT char * Iinplace;
1760IEXT char * Ie_tmpname;
760ac839 1761IEXT PerlIO * Ie_fp;
79072805 1762IEXT U32 Iperldb;
748a9306 1763 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1764IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
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1765
1766/* magical thingies */
85e6fe83 1767IEXT Time_t Ibasetime; /* $^T */
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1768IEXT SV * Iformfeed; /* $^L */
1769IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1770IEXT SV * Irs; /* $/ */
79072805 1771IEXT char * Iofs; /* $, */
8990e307 1772IEXT STRLEN Iofslen;
79072805 1773IEXT char * Iors; /* $\ */
8990e307 1774IEXT STRLEN Iorslen;
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1775IEXT char * Iofmt; /* $# */
1776IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1777IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1778IEXT I32 Istatusvalue; /* $? */
f86702cc 1779#ifdef VMS
ff0cee69 1780IEXT U32 Istatusvalue_vms;
f86702cc 1781#endif
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1782
1783IEXT struct stat Istatcache; /* _ */
1784IEXT GV * Istatgv;
1785IEXT SV * Istatname IINIT(Nullsv);
1786
1787/* shortcuts to various I/O objects */
1788IEXT GV * Istdingv;
1789IEXT GV * Ilast_in_gv;
1790IEXT GV * Idefgv;
1791IEXT GV * Iargvgv;
1792IEXT GV * Idefoutgv;
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1793IEXT GV * Iargvoutgv;
1794
1795/* shortcuts to regexp stuff */
1796IEXT GV * Ileftgv;
1797IEXT GV * Iampergv;
1798IEXT GV * Irightgv;
1799IEXT PMOP * Icurpm; /* what to do \ interps from */
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1800IEXT I32 * Iscreamfirst;
1801IEXT I32 * Iscreamnext;
1802IEXT I32 Imaxscream IINIT(-1);
1803IEXT SV * Ilastscream;
1804
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LW
1805/* shortcuts to misc objects */
1806IEXT GV * Ierrgv;
1807
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LW
1808/* shortcuts to debugging objects */
1809IEXT GV * IDBgv;
1810IEXT GV * IDBline;
1811IEXT GV * IDBsub;
1812IEXT SV * IDBsingle;
1813IEXT SV * IDBtrace;
1814IEXT SV * IDBsignal;
1815IEXT AV * Ilineary; /* lines of script for debugger */
1816IEXT AV * Idbargs; /* args to call listed by caller function */
1817
1818/* symbol tables */
1819IEXT HV * Idefstash; /* main symbol table */
1820IEXT HV * Icurstash; /* symbol table for current package */
1821IEXT HV * Idebstash; /* symbol table for perldb package */
1822IEXT SV * Icurstname; /* name of current package */
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LW
1823IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1824IEXT AV * Iendav; /* names of END subroutines */
c750a3ec 1825IEXT AV * Irestartav; /* names of RESTART subroutines */
0c30d9ec 1826IEXT HV * Istrtab; /* shared string table */
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LW
1827
1828/* memory management */
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LW
1829IEXT SV ** Itmps_stack;
1830IEXT I32 Itmps_ix IINIT(-1);
1831IEXT I32 Itmps_floor IINIT(-1);
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LW
1832IEXT I32 Itmps_max;
1833IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1834IEXT I32 Isv_objcount; /* how many objects are currently allocated */
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LW
1835IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1836IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
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1837
1838/* funky return mechanisms */
1839IEXT I32 Ilastspbase;
1840IEXT I32 Ilastsize;
1841IEXT int Iforkprocess; /* so do_open |- can return proc# */
1842
1843/* subprocess state */
1844IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
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1845
1846/* internal state */
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LW
1847IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1848IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1849IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1850IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1851IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1852IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1853IEXT bool Itainting; /* doing taint checks */
e50aee73 1854IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
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1855
1856/* trace state */
1857IEXT I32 Idlevel;
1858IEXT I32 Idlmax IINIT(128);
1859IEXT char * Idebname;
1860IEXT char * Idebdelim;
1861
1862/* current interpreter roots */
748a9306 1863IEXT CV * Imain_cv;
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LW
1864IEXT OP * Imain_root;
1865IEXT OP * Imain_start;
1866IEXT OP * Ieval_root;
1867IEXT OP * Ieval_start;
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LW
1868
1869/* runtime control stuff */
1870IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1871IEXT COP * Icurcopdb IINIT(NULL);
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LW
1872IEXT line_t Icopline IINIT(NOLINE);
1873IEXT CONTEXT * Icxstack;
1874IEXT I32 Icxstack_ix IINIT(-1);
1875IEXT I32 Icxstack_max IINIT(128);
54310121
PP
1876IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1877IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1878IEXT I32 Irunlevel;
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LW
1879
1880/* stack stuff */
0c30d9ec 1881IEXT AV * Icurstack; /* THE STACK */
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LW
1882IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1883IEXT SV ** Imystack_base; /* stack->array_ary */
1884IEXT SV ** Imystack_sp; /* stack pointer now */
1885IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1886
1887/* format accumulators */
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LW
1888IEXT SV * Iformtarget;
1889IEXT SV * Ibodytarget;
1890IEXT SV * Itoptarget;
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LW
1891
1892/* statics moved here for shared library purposes */
93a17b20 1893IEXT SV Istrchop; /* return value from chop */
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LW
1894IEXT int Ifilemode; /* so nextargv() can preserve mode */
1895IEXT int Ilastfd; /* what to preserve mode on */
1896IEXT char * Ioldname; /* what to preserve mode on */
1897IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1898IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1899IEXT OP * Isortcop; /* user defined sort routine */
1900IEXT HV * Isortstash; /* which is in some package or other */
1901IEXT GV * Ifirstgv; /* $a */
1902IEXT GV * Isecondgv; /* $b */
1903IEXT AV * Isortstack; /* temp stack during pp_sort() */
1904IEXT AV * Isignalstack; /* temp stack during sighandler() */
1905IEXT SV * Imystrk; /* temp key string for do_each() */
1906IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
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LW
1907IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1908IEXT I32 Igensym; /* next symbol for getsym() to define */
1909IEXT bool Ipreambled;
3c81428c 1910IEXT AV * Ipreambleav;
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LW
1911IEXT int Ilaststatval IINIT(-1);
1912IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1913IEXT SV * Imess_sv;
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LW
1914
1915#undef IEXT
1916#undef IINIT
1917
8990e307 1918#ifdef MULTIPLICITY
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LW
1919};
1920#else
1921struct interpreter {
1922 char broiled;
1923};
1924#endif
1925
11343788 1926#include "thread.h"
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LW
1927#include "pp.h"
1928
1929#ifdef __cplusplus
1930extern "C" {
1931#endif
1932
1933#include "proto.h"
1934
a0d0e21e
LW
1935#ifdef EMBED
1936#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1937#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1938#else
1939#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1940#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1941#endif
1942
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1943#ifdef __cplusplus
1944};
1945#endif
1946
93a17b20 1947/* The following must follow proto.h */
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LW
1948
1949#ifdef DOINIT
bbce6d69 1950
4633a7c4 1951EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW
1952 magic_set,
1953 magic_len,
1954 0, 0};
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LW
1955EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1956EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW
1957 0, magic_clearenv,
1958 0};
4633a7c4 1959EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec
PP
1960EXT MGVTBL vtbl_sigelem = {magic_getsig,
1961 magic_setsig,
1962 0, magic_clearsig,
1963 0};
4633a7c4 1964EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1965 0};
4633a7c4 1966EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW
1967 magic_setpack,
1968 0, magic_clearpack,
1969 0};
4633a7c4 1970EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1971 0, 0, 0};
4633a7c4 1972EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1973 0, 0, 0};
4633a7c4 1974EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1975 0, 0, 0};
4633a7c4 1976EXT MGVTBL vtbl_arylen = {magic_getarylen,
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LW
1977 magic_setarylen,
1978 0, 0, 0};
4633a7c4 1979EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW
1980 magic_setglob,
1981 0, 0, 0};
4633a7c4 1982EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1983 0, 0, 0};
99abf803
PP
1984EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1985 0, 0, 0};
4633a7c4 1986EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1987 0, 0, 0};
4633a7c4 1988EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1989 0, 0, 0};
4633a7c4 1990EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1991 0, 0, 0};
4633a7c4 1992EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW
1993 magic_setpos,
1994 0, 0, 0};
4633a7c4 1995EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1996 0, 0, 0};
55497cff
PP
1997EXT MGVTBL vtbl_fm = {0, magic_setfm,
1998 0, 0, 0};
4633a7c4 1999EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW
2000 magic_setuvar,
2001 0, 0, 0};
f93b4edd
MB
2002#ifdef USE_THREADS
2003EXT MGVTBL vtbl_mutex = {0, 0, 0, 0, magic_mutexfree};
2004#endif /* USE_THREADS */
68dc0745
PP
2005EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
2006 0, 0, magic_freedefelem};
a0d0e21e 2007
36477c24 2008#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2009EXT MGVTBL vtbl_collxfrm = {0,
2010 magic_setcollxfrm,
2011 0, 0, 0};
2012#endif
a0d0e21e
LW
2013
2014#ifdef OVERLOAD
4633a7c4 2015EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 2016 0, 0, magic_setamagic};
4633a7c4 2017EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 2018 0, 0, magic_setamagic};
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LW
2019#endif /* OVERLOAD */
2020
bbce6d69
PP
2021#else /* !DOINIT */
2022
79072805
LW
2023EXT MGVTBL vtbl_sv;
2024EXT MGVTBL vtbl_env;
2025EXT MGVTBL vtbl_envelem;
2026EXT MGVTBL vtbl_sig;
2027EXT MGVTBL vtbl_sigelem;
463ee0b2
LW
2028EXT MGVTBL vtbl_pack;
2029EXT MGVTBL vtbl_packelem;
79072805 2030EXT MGVTBL vtbl_dbline;
463ee0b2
LW
2031EXT MGVTBL vtbl_isa;
2032EXT MGVTBL vtbl_isaelem;
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LW
2033EXT MGVTBL vtbl_arylen;
2034EXT MGVTBL vtbl_glob;
93a17b20 2035EXT MGVTBL vtbl_mglob;
99abf803 2036EXT MGVTBL vtbl_nkeys;
463ee0b2 2037EXT MGVTBL vtbl_taint;
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LW
2038EXT MGVTBL vtbl_substr;
2039EXT MGVTBL vtbl_vec;
a0d0e21e 2040EXT MGVTBL vtbl_pos;
79072805 2041EXT MGVTBL vtbl_bm;
55497cff 2042EXT MGVTBL vtbl_fm;
79072805 2043EXT MGVTBL vtbl_uvar;
a0d0e21e 2044
f93b4edd
MB
2045#ifdef USE_THREADS
2046EXT MGVTBL vtbl_mutex;
2047#endif /* USE_THREADS */
2048
68dc0745 2049EXT MGVTBL vtbl_defelem;
a0d0e21e 2050
36477c24 2051#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2052EXT MGVTBL vtbl_collxfrm;
2053#endif
a0d0e21e
LW
2054
2055#ifdef OVERLOAD
2056EXT MGVTBL vtbl_amagic;
2057EXT MGVTBL vtbl_amagicelem;
2058#endif /* OVERLOAD */
2059
bbce6d69 2060#endif /* !DOINIT */
85e6fe83 2061
a0d0e21e 2062#ifdef OVERLOAD
c0315cdf 2063
a0d0e21e
LW
2064EXT long amagic_generation;
2065
a6006777 2066#define NofAMmeth 58
a0d0e21e 2067#ifdef DOINIT
a6006777
PP
2068EXTCONST char * AMG_names[NofAMmeth] = {
2069 "fallback", "abs", /* "fallback" should be the first. */
2070 "bool", "nomethod",
2071 "\"\"", "0+",
2072 "+", "+=",
2073 "-", "-=",
2074 "*", "*=",
2075 "/", "/=",
2076 "%", "%=",
2077 "**", "**=",
2078 "<<", "<<=",
2079 ">>", ">>=",
2080 "&", "&=",
2081 "|", "|=",
2082 "^", "^=",
2083 "<", "<=",
2084 ">", ">=",
2085 "==", "!=",
2086 "<=>", "cmp",
2087 "lt", "le",
2088 "gt", "ge",
2089 "eq", "ne",
2090 "!", "~",
2091 "++", "--",
2092 "atan2", "cos",
2093 "sin", "exp",
2094 "log", "sqrt",
2095 "x", "x=",
2096 ".", ".=",
2097 "=", "neg"
a0d0e21e
LW
2098};
2099#else
a6006777 2100EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW
2101#endif /* def INITAMAGIC */
2102
a6006777 2103struct am_table {
a0d0e21e
LW
2104 long was_ok_sub;
2105 long was_ok_am;
a6006777
PP
2106 U32 flags;
2107 CV* table[NofAMmeth];
a0d0e21e
LW
2108 long fallback;
2109};
a6006777
PP
2110struct am_table_short {
2111 long was_ok_sub;
2112 long was_ok_am;
2113 U32 flags;
2114};
a0d0e21e 2115typedef struct am_table AMT;
a6006777 2116typedef struct am_table_short AMTS;
a0d0e21e
LW
2117
2118#define AMGfallNEVER 1
2119#define AMGfallNO 2
2120#define AMGfallYES 3
2121
a6006777
PP
2122#define AMTf_AMAGIC 1
2123#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2124#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2125#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2126
a0d0e21e
LW
2127enum {
2128 fallback_amg, abs_amg,
2129 bool__amg, nomethod_amg,
2130 string_amg, numer_amg,
2131 add_amg, add_ass_amg,
2132 subtr_amg, subtr_ass_amg,
2133 mult_amg, mult_ass_amg,
2134 div_amg, div_ass_amg,
2135 mod_amg, mod_ass_amg,
2136 pow_amg, pow_ass_amg,
2137 lshift_amg, lshift_ass_amg,
2138 rshift_amg, rshift_ass_amg,
748a9306
LW
2139 band_amg, band_ass_amg,
2140 bor_amg, bor_ass_amg,
2141 bxor_amg, bxor_ass_amg,
a0d0e21e
LW
2142 lt_amg, le_amg,
2143 gt_amg, ge_amg,
2144 eq_amg, ne_amg,
2145 ncmp_amg, scmp_amg,
2146 slt_amg, sle_amg,
2147 sgt_amg, sge_amg,
2148 seq_amg, sne_amg,
a0d0e21e
LW
2149 not_amg, compl_amg,
2150 inc_amg, dec_amg,
2151 atan2_amg, cos_amg,
2152 sin_amg, exp_amg,
2153 log_amg, sqrt_amg,
2154 repeat_amg, repeat_ass_amg,
748a9306
LW
2155 concat_amg, concat_ass_amg,
2156 copy_amg, neg_amg
a0d0e21e 2157};
c0315cdf
JH
2158
2159/*
2160 * some compilers like to redefine cos et alia as faster
2161 * (and less accurate?) versions called F_cos et cetera (Quidquid
2162 * latine dictum sit, altum viditur.) This trick collides with
2163 * the Perl overloading (amg). The following #defines fool both.
2164 */
2165
2166#ifdef _FASTMATH
2167# ifdef atan2
2168# define F_atan2_amg atan2_amg
2169# endif
2170# ifdef cos
2171# define F_cos_amg cos_amg
2172# endif
2173# ifdef exp
2174# define F_exp_amg exp_amg
2175# endif
2176# ifdef log
2177# define F_log_amg log_amg
2178# endif
2179# ifdef pow
2180# define F_pow_amg pow_amg
2181# endif
2182# ifdef sin
2183# define F_sin_amg sin_amg
2184# endif
2185# ifdef sqrt
2186# define F_sqrt_amg sqrt_amg
2187# endif
2188#endif /* _FASTMATH */
2189
a0d0e21e
LW
2190#endif /* OVERLOAD */
2191
36477c24 2192#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2193EXT U32 collation_ix; /* Collation generation index */
2194EXT char * collation_name; /* Name of current collation */
2195EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2196EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2197EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2198#endif /* USE_LOCALE_COLLATE */
bbce6d69 2199
36477c24 2200#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2201
2202EXT char * numeric_name; /* Name of current numeric locale */
2203EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2204EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2205
36477c24
PP
2206#define SET_NUMERIC_STANDARD() \
2207 STMT_START { \
2208 if (! numeric_standard) \
2209 perl_set_numeric_standard(); \
2210 } STMT_END
2211
2212#define SET_NUMERIC_LOCAL() \
2213 STMT_START { \
2214 if (! numeric_local) \
2215 perl_set_numeric_local(); \
2216 } STMT_END
bbce6d69 2217
36477c24 2218#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2219
36477c24
PP
2220#define SET_NUMERIC_STANDARD() /**/
2221#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2222
36477c24 2223#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2224
760ac839
LW
2225#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2226/*
2227 * Now we have __attribute__ out of the way
2228 * Remap printf
2229 */
2230#define printf PerlIO_stdoutf
2231#endif
2232
85e6fe83 2233#endif /* Include guard */
a6e633de 2234