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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 */
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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
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32#ifdef OP_IN_REGISTER
33# ifdef __GNUC__
34# define stringify_immed(s) #s
35# define stringify(s) stringify_immed(s)
36register struct op *op asm(stringify(OP_IN_REGISTER));
37# endif
38#endif
39
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40/*
41 * STMT_START { statements; } STMT_END;
42 * can be used as a single statement, as in
43 * if (x) STMT_START { ... } STMT_END; else ...
44 *
45 * Trying to select a version that gives no warnings...
46 */
47#if !(defined(STMT_START) && defined(STMT_END))
169d69b2 48# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
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49# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
50# define STMT_END )
51# else
52 /* Now which other defined()s do we need here ??? */
53# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
54# define STMT_START if (1)
55# define STMT_END else (void)0
56# else
57# define STMT_START do
58# define STMT_END while (0)
59# endif
60# endif
61#endif
62
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63#define NOOP (void)0
64
0f15f207 65#define WITH_THR(s) do { dTHR; s; } while (0)
11343788 66#ifdef USE_THREADS
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67#ifdef FAKE_THREADS
68#include "fakethr.h"
69#else
11343788 70#include <pthread.h>
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71typedef pthread_mutex_t perl_mutex;
72typedef pthread_cond_t perl_cond;
0f15f207 73typedef pthread_key_t perl_key;
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74#endif /* FAKE_THREADS */
75#endif /* USE_THREADS */
11343788 76
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77/*
78 * SOFT_CAST can be used for args to prototyped functions to retain some
79 * type checking; it only casts if the compiler does not know prototypes.
80 */
81#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
82#define SOFT_CAST(type)
83#else
84#define SOFT_CAST(type) (type)
85#endif
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86
87#ifndef BYTEORDER
88# define BYTEORDER 0x1234
89#endif
90
91/* Overall memory policy? */
92#ifndef CONSERVATIVE
93# define LIBERAL 1
94#endif
95
96/*
97 * The following contortions are brought to you on behalf of all the
98 * standards, semi-standards, de facto standards, not-so-de-facto standards
99 * of the world, as well as all the other botches anyone ever thought of.
100 * The basic theory is that if we work hard enough here, the rest of the
101 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
102 */
ac58e20f 103
ee0007ab 104/* define this once if either system, instead of cluttering up the src */
68dc0745 105#if defined(MSDOS) || defined(atarist) || defined(WIN32)
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106#define DOSISH 1
107#endif
108
a0d0e21e 109#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
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110# define STANDARD_C 1
111#endif
112
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113#if defined(__cplusplus) || defined(WIN32)
114# define DONT_DECLARE_STD 1
115#endif
116
352d5a3a 117#if defined(HASVOLATILE) || defined(STANDARD_C)
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118# ifdef __cplusplus
119# define VOL // to temporarily suppress warnings
120# else
121# define VOL volatile
122# endif
663a0e37 123#else
79072805 124# define VOL
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125#endif
126
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127#define TAINT (tainted = TRUE)
128#define TAINT_NOT (tainted = FALSE)
129#define TAINT_IF(c) if (c) { tainted = TRUE; }
130#define TAINT_ENV() if (tainting) { taint_env(); }
131#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 132
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133/* XXX All process group stuff is handled in pp_sys.c. Should these
134 defines move there? If so, I could simplify this a lot. --AD 9/96.
135*/
136/* Process group stuff changed from traditional BSD to POSIX.
137 perlfunc.pod documents the traditional BSD-style syntax, so we'll
138 try to preserve that, if possible.
139*/
140#ifdef HAS_SETPGID
141# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 142#else
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143# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
144# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
145# else
146# ifdef HAS_SETPGRP2 /* DG/UX */
147# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
148# endif
149# endif
150#endif
151#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
152# define HAS_SETPGRP /* Well, effectively it does . . . */
153#endif
154
155/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
156 our life easier :-) so we'll try it.
157*/
158#ifdef HAS_GETPGID
159# define BSD_GETPGRP(pid) getpgid((pid))
160#else
161# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
162# define BSD_GETPGRP(pid) getpgrp((pid))
163# else
164# ifdef HAS_GETPGRP2 /* DG/UX */
165# define BSD_GETPGRP(pid) getpgrp2((pid))
166# endif
167# endif
168#endif
169#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
170# define HAS_GETPGRP /* Well, effectively it does . . . */
171#endif
172
173/* These are not exact synonyms, since setpgrp() and getpgrp() may
174 have different behaviors, but perl.h used to define USE_BSDPGRP
175 (prior to 5.003_05) so some extension might depend on it.
176*/
177#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
178# ifndef USE_BSDPGRP
179# define USE_BSDPGRP
180# endif
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181#endif
182
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183#ifndef _TYPES_ /* If types.h defines this it's easy. */
184# ifndef major /* Does everyone's types.h define this? */
185# include <sys/types.h>
c07a80fd 186# endif
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187#endif
188
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189#ifdef __cplusplus
190# ifndef I_STDARG
191# define I_STDARG 1
192# endif
193#endif
194
195#ifdef I_STDARG
196# include <stdarg.h>
197#else
198# ifdef I_VARARGS
199# include <varargs.h>
200# endif
201#endif
202
203#include "perlio.h"
0c30d9ec 204
4633a7c4 205#ifdef USE_NEXT_CTYPE
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206
207#if NX_CURRENT_COMPILER_RELEASE >= 400
208#include <objc/NXCType.h>
209#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 210#include <appkit/NXCType.h>
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211#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
212
213#else /* !USE_NEXT_CTYPE */
fe14fcc3 214#include <ctype.h>
0c30d9ec 215#endif /* USE_NEXT_CTYPE */
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216
217#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
218#undef METHOD
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219#endif
220
4633a7c4 221#ifdef I_LOCALE
36477c24 222# include <locale.h>
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223#endif
224
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225#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
226# define USE_LOCALE
227# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
228 && defined(HAS_STRXFRM)
229# define USE_LOCALE_COLLATE
230# endif
231# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
232# define USE_LOCALE_CTYPE
233# endif
234# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
235# define USE_LOCALE_NUMERIC
236# endif
237#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 238
fe14fcc3 239#include <setjmp.h>
79072805 240
a0d0e21e 241#ifdef I_SYS_PARAM
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242# ifdef PARAM_NEEDS_TYPES
243# include <sys/types.h>
244# endif
245# include <sys/param.h>
352d5a3a 246#endif
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247
248
249/* Use all the "standard" definitions? */
a0d0e21e 250#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 251# include <stdlib.h>
ff68c719 252#endif
03a14243 253
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254/* This comes after <stdlib.h> so we don't try to change the standard
255 * library prototypes; we'll use our own in proto.h instead. */
03a14243 256
4633a7c4 257#ifdef MYMALLOC
55497cff 258
4633a7c4 259# ifdef HIDEMYMALLOC
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260# define malloc Mymalloc
261# define calloc Mycalloc
4633a7c4 262# define realloc Myremalloc
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263# define free Myfree
264# endif
265# ifdef EMBEDMYMALLOC
266# define malloc Perl_malloc
267# define calloc Perl_calloc
268# define realloc Perl_realloc
269# define free Perl_free
4633a7c4 270# endif
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271
272# undef safemalloc
273# undef safecalloc
274# undef saferealloc
275# undef safefree
276# define safemalloc malloc
277# define safecalloc calloc
4633a7c4 278# define saferealloc realloc
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279# define safefree free
280
281#endif /* MYMALLOC */
4633a7c4 282
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283#define MEM_SIZE Size_t
284
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285#if defined(STANDARD_C) && defined(I_STDDEF)
286# include <stddef.h>
71be2cbc 287# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 288#else
71be2cbc 289# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
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290#endif
291
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292#if defined(I_STRING) || defined(__cplusplus)
293# include <string.h>
294#else
295# include <strings.h>
296#endif
297
298#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
299#define strchr index
300#define strrchr rindex
301#endif
302
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303#ifdef I_MEMORY
304# include <memory.h>
305#endif
306
fe14fcc3 307#ifdef HAS_MEMCPY
85e6fe83 308# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 309# ifndef memcpy
a0d0e21e 310 extern char * memcpy _((char*, char*, int));
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311# endif
312# endif
313#else
314# ifndef memcpy
315# ifdef HAS_BCOPY
316# define memcpy(d,s,l) bcopy(s,d,l)
317# else
318# define memcpy(d,s,l) my_bcopy(s,d,l)
319# endif
320# endif
321#endif /* HAS_MEMCPY */
fe14fcc3 322
ee0007ab 323#ifdef HAS_MEMSET
85e6fe83 324# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 325# ifndef memset
a0d0e21e 326 extern char *memset _((char*, int, int));
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327# endif
328# endif
ee0007ab 329#else
fc36a67e 330# define memset(d,c,l) my_memset(d,c,l)
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331#endif /* HAS_MEMSET */
332
85e6fe83 333#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 334# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
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335# define memmove(d,s,l) bcopy(s,d,l)
336# else
2304df62 337# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 338# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 339# else
79072805 340# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 341# endif
352d5a3a 342# endif
d9d8d8de 343#endif
ee0007ab 344
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345#if defined(mips) && defined(ultrix) && !defined(__STDC__)
346# undef HAS_MEMCMP
347#endif
348
349#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 350# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 351# ifndef memcmp
a0d0e21e 352 extern int memcmp _((char*, char*, int));
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353# endif
354# endif
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355# ifdef BUGGY_MSC
356 # pragma function(memcmp)
357# endif
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358#else
359# ifndef memcmp
ecfc5424 360# define memcmp my_memcmp
352d5a3a 361# endif
36477c24 362#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 363
fc36a67e 364#ifndef memzero
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365# ifdef HAS_MEMSET
366# define memzero(d,l) memset(d,0,l)
79072805 367# else
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368# ifdef HAS_BZERO
369# define memzero(d,l) bzero(d,l)
79072805 370# else
fc36a67e 371# define memzero(d,l) my_bzero(d,l)
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372# endif
373# endif
d9d8d8de 374#endif
378cc40b 375
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376#ifndef HAS_BCMP
377# ifndef bcmp
378# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 379# endif
36477c24 380#endif /* !HAS_BCMP */
378cc40b 381
ae986130 382#ifdef I_NETINET_IN
79072805 383# include <netinet/in.h>
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384#endif
385
1aef975c 386#ifdef I_SYS_STAT
8d063cd8 387#include <sys/stat.h>
1aef975c 388#endif
79072805 389
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390/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
391 like UTekV) are broken, sometimes giving false positives. Undefine
392 them here and let the code below set them to proper values.
393
394 The ghs macro stands for GreenHills Software C-1.8.5 which
395 is the C compiler for sysV88 and the various derivatives.
396 This header file bug is corrected in gcc-2.5.8 and later versions.
397 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
398
399#if defined(uts) || (defined(m88k) && defined(ghs))
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400# undef S_ISDIR
401# undef S_ISCHR
402# undef S_ISBLK
403# undef S_ISREG
404# undef S_ISFIFO
405# undef S_ISLNK
ee0007ab 406#endif
135863df 407
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408#ifdef I_TIME
409# include <time.h>
ffed7fef 410#endif
663a0e37 411
fe14fcc3 412#ifdef I_SYS_TIME
85e6fe83 413# ifdef I_SYS_TIME_KERNEL
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414# define KERNEL
415# endif
416# include <sys/time.h>
85e6fe83 417# ifdef I_SYS_TIME_KERNEL
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418# undef KERNEL
419# endif
a687059c 420#endif
135863df 421
55497cff 422#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 423# include <sys/times.h>
d9d8d8de 424#endif
8d063cd8 425
fe14fcc3 426#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 427# undef HAS_STRERROR
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428#endif
429
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430#ifndef HAS_MKFIFO
431# ifndef mkfifo
432# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
433# endif
434#endif /* !HAS_MKFIFO */
435
663a0e37 436#include <errno.h>
ed6116ce 437#ifdef HAS_SOCKET
85e6fe83 438# ifdef I_NET_ERRNO
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439# include <net/errno.h>
440# endif
441#endif
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442
443#ifdef VMS
444# define SETERRNO(errcode,vmserrcode) \
445 STMT_START { \
446 set_errno(errcode); \
447 set_vaxc_errno(vmserrcode); \
448 } STMT_END
748a9306 449#else
f86702cc 450# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 451#endif
ed6116ce 452
55497cff 453#ifndef errno
79072805 454 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 455#endif
663a0e37 456
2304df62 457#ifdef HAS_STRERROR
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458# ifdef VMS
459 char *strerror _((int,...));
460# else
68dc0745 461#ifndef DONT_DECLARE_STD
a0d0e21e 462 char *strerror _((int));
68dc0745 463#endif
a0d0e21e 464# endif
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465# ifndef Strerror
466# define Strerror strerror
467# endif
468#else
469# ifdef HAS_SYS_ERRLIST
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470 extern int sys_nerr;
471 extern char *sys_errlist[];
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472# ifndef Strerror
473# define Strerror(e) \
79072805 474 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 475# endif
79072805 476# endif
35c8bce7 477#endif
663a0e37 478
2304df62 479#ifdef I_SYS_IOCTL
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480# ifndef _IOCTL_
481# include <sys/ioctl.h>
482# endif
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483#endif
484
ee0007ab 485#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
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486# ifdef HAS_SOCKETPAIR
487# undef HAS_SOCKETPAIR
488# endif
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489# ifdef I_NDBM
490# undef I_NDBM
79072805 491# endif
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492#endif
493
a687059c 494#if INTSIZE == 2
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495# define htoni htons
496# define ntohi ntohs
a687059c 497#else
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498# define htoni htonl
499# define ntohi ntohl
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500#endif
501
a0d0e21e 502/* Configure already sets Direntry_t */
35c8bce7 503#if defined(I_DIRENT)
663a0e37 504# include <dirent.h>
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505# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
506# include <sys/dir.h>
507# endif
ae986130 508#else
fe14fcc3 509# ifdef I_SYS_NDIR
79a0689e 510# include <sys/ndir.h>
663a0e37 511# else
fe14fcc3 512# ifdef I_SYS_DIR
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513# ifdef hp9000s500
514# include <ndir.h> /* may be wrong in the future */
515# else
516# include <sys/dir.h>
517# endif
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518# endif
519# endif
4633a7c4 520#endif
a687059c 521
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522#ifdef FPUTS_BOTCH
523/* work around botch in SunOS 4.0.1 and 4.0.2 */
524# ifndef fputs
79072805 525# define fputs(sv,fp) fprintf(fp,"%s",sv)
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526# endif
527#endif
528
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529/*
530 * The following gobbledygook brought to you on behalf of __STDC__.
531 * (I could just use #ifndef __STDC__, but this is more bulletproof
532 * in the face of half-implementations.)
533 */
534
535#ifndef S_IFMT
536# ifdef _S_IFMT
537# define S_IFMT _S_IFMT
538# else
539# define S_IFMT 0170000
540# endif
541#endif
542
543#ifndef S_ISDIR
544# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
545#endif
546
547#ifndef S_ISCHR
548# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
549#endif
550
551#ifndef S_ISBLK
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552# ifdef S_IFBLK
553# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
554# else
555# define S_ISBLK(m) (0)
556# endif
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557#endif
558
559#ifndef S_ISREG
560# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
561#endif
562
563#ifndef S_ISFIFO
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564# ifdef S_IFIFO
565# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
566# else
567# define S_ISFIFO(m) (0)
568# endif
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569#endif
570
571#ifndef S_ISLNK
572# ifdef _S_ISLNK
573# define S_ISLNK(m) _S_ISLNK(m)
574# else
575# ifdef _S_IFLNK
576# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
577# else
578# ifdef S_IFLNK
579# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
580# else
581# define S_ISLNK(m) (0)
582# endif
583# endif
584# endif
585#endif
586
587#ifndef S_ISSOCK
588# ifdef _S_ISSOCK
589# define S_ISSOCK(m) _S_ISSOCK(m)
590# else
591# ifdef _S_IFSOCK
592# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
593# else
594# ifdef S_IFSOCK
595# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
596# else
597# define S_ISSOCK(m) (0)
598# endif
599# endif
600# endif
601#endif
602
603#ifndef S_IRUSR
604# ifdef S_IREAD
605# define S_IRUSR S_IREAD
606# define S_IWUSR S_IWRITE
607# define S_IXUSR S_IEXEC
608# else
609# define S_IRUSR 0400
610# define S_IWUSR 0200
611# define S_IXUSR 0100
612# endif
613# define S_IRGRP (S_IRUSR>>3)
614# define S_IWGRP (S_IWUSR>>3)
615# define S_IXGRP (S_IXUSR>>3)
616# define S_IROTH (S_IRUSR>>6)
617# define S_IWOTH (S_IWUSR>>6)
618# define S_IXOTH (S_IXUSR>>6)
619#endif
620
621#ifndef S_ISUID
622# define S_ISUID 04000
623#endif
624
625#ifndef S_ISGID
626# define S_ISGID 02000
627#endif
628
79072805
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629#ifdef ff_next
630# undef ff_next
352d5a3a
LW
631#endif
632
a0d0e21e 633#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
634# define SLOPPYDIVIDE
635#endif
636
748a9306
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637#ifdef UV
638#undef UV
639#endif
640
27d4fb96
PP
641/* XXX QUAD stuff is not currently supported on most systems.
642 Specifically, perl internals don't support long long. Among
643 the many problems is that some compilers support long long,
644 but the underlying library functions (such as sprintf) don't.
645 Some things do work (such as quad pack/unpack on convex);
646 also some systems use long long for the fpos_t typedef. That
647 seems to work too.
648
649 The IV type is supposed to be long enough to hold any integral
650 value or a pointer.
651 --Andy Dougherty August 1996
652*/
653
f86702cc
PP
654#ifdef cray
655# define Quad_t int
656#else
657# ifdef convex
658# define Quad_t long long
45d8adaa 659# else
ff0cee69 660# if BYTEORDER > 0xFFFF
ecfc5424 661# define Quad_t long
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662# endif
663# endif
f86702cc
PP
664#endif
665
666#ifdef Quad_t
667# define HAS_QUAD
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668 typedef Quad_t IV;
669 typedef unsigned Quad_t UV;
27d4fb96
PP
670# define IV_MAX PERL_QUAD_MAX
671# define IV_MIN PERL_QUAD_MIN
672# define UV_MAX PERL_UQUAD_MAX
673# define UV_MIN PERL_UQUAD_MIN
79072805 674#else
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675 typedef long IV;
676 typedef unsigned long UV;
27d4fb96
PP
677# define IV_MAX PERL_LONG_MAX
678# define IV_MIN PERL_LONG_MIN
679# define UV_MAX PERL_ULONG_MAX
680# define UV_MIN PERL_ULONG_MIN
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681#endif
682
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683/* Previously these definitions used hardcoded figures.
684 * It is hoped these formula are more portable, although
685 * no data one way or another is presently known to me.
686 * The "PERL_" names are used because these calculated constants
687 * do not meet the ANSI requirements for LONG_MAX, etc., which
688 * need to be constants acceptable to #if - kja
689 * define PERL_LONG_MAX 2147483647L
690 * define PERL_LONG_MIN (-LONG_MAX - 1)
691 * define PERL ULONG_MAX 4294967295L
692 */
693
694#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
695# include <limits.h>
696#else
697#ifdef I_VALUES
698# include <values.h>
699#endif
700#endif
701
99abf803
PP
702/*
703 * Try to figure out max and min values for the integral types. THE CORRECT
704 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
705 * following hacks are used if neither limits.h or values.h provide them:
706 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
707 * for types < int: (unsigned TYPE)~(unsigned)0
708 * The argument to ~ must be unsigned so that later signed->unsigned
709 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
710 * and it must not be smaller than int because ~ does integral promotion.
711 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
712 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
713 * The latter is a hack which happens to work on some machines but
714 * does *not* catch any random system, or things like integer types
715 * with NaN if that is possible.
716 *
717 * All of the types are explicitly cast to prevent accidental loss of
718 * numeric range, and in the hope that they will be less likely to confuse
719 * over-eager optimizers.
720 *
721 */
27d4fb96 722
99abf803
PP
723#define PERL_UCHAR_MIN ((unsigned char)0)
724
725#ifdef UCHAR_MAX
726# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 727#else
99abf803
PP
728# ifdef MAXUCHAR
729# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 730# else
99abf803 731# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
732# endif
733#endif
99abf803
PP
734
735/*
736 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
737 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
738 * depending on local options. Until Configure detects this (or at least
739 * detects whether the "signed" keyword is available) the CHAR ranges
740 * will not be included. UCHAR functions normally.
741 * - kja
742 */
27d4fb96 743
99abf803
PP
744#define PERL_USHORT_MIN ((unsigned short)0)
745
746#ifdef USHORT_MAX
747# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 748#else
99abf803
PP
749# ifdef MAXUSHORT
750# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 751# else
99abf803 752# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96
PP
753# endif
754#endif
755
27d4fb96 756#ifdef SHORT_MAX
99abf803 757# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
758#else
759# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 760# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 761# else
99abf803 762# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96
PP
763# endif
764#endif
765
766#ifdef SHORT_MIN
99abf803 767# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
768#else
769# ifdef MINSHORT
99abf803 770# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96
PP
771# else
772# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
773# endif
774#endif
775
99abf803
PP
776#ifdef UINT_MAX
777# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 778#else
99abf803
PP
779# ifdef MAXUINT
780# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 781# else
99abf803 782# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
783# endif
784#endif
785
99abf803 786#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
787
788#ifdef INT_MAX
99abf803 789# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
790#else
791# ifdef MAXINT /* Often used in <values.h> */
99abf803 792# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 793# else
99abf803 794# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
795# endif
796#endif
797
798#ifdef INT_MIN
99abf803 799# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
800#else
801# ifdef MININT
99abf803 802# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
803# else
804# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
805# endif
806#endif
807
99abf803
PP
808#ifdef ULONG_MAX
809# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 810#else
99abf803
PP
811# ifdef MAXULONG
812# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 813# else
99abf803 814# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
815# endif
816#endif
817
99abf803 818#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 819
760ac839 820#ifdef LONG_MAX
99abf803 821# define PERL_LONG_MAX ((long)LONG_MAX)
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LW
822#else
823# ifdef MAXLONG /* Often used in <values.h> */
99abf803 824# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 825# else
99abf803 826# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
827# endif
828#endif
829
830#ifdef LONG_MIN
99abf803 831# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
832#else
833# ifdef MINLONG
99abf803 834# define PERL_LONG_MIN ((long)MINLONG)
760ac839 835# else
27d4fb96 836# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
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LW
837# endif
838#endif
839
99abf803
PP
840#ifdef HAS_QUAD
841
842# ifdef UQUAD_MAX
843# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 844# else
99abf803 845# define PERL_UQUAD_MAX (~(UV)0)
760ac839 846# endif
760ac839 847
99abf803 848# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 849
27d4fb96 850# ifdef QUAD_MAX
99abf803 851# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 852# else
99abf803 853# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96
PP
854# endif
855
856# ifdef QUAD_MIN
99abf803 857# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 858# else
a6e633de 859# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96
PP
860# endif
861
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862#endif
863
72aaf631
MB
864/* Digital UNIX defines a typedef CONTEXT when pthreads is in use */
865#if defined(__osf__)
866# define CONTEXT PERL_CONTEXT
462e5cf6
MB
867#endif
868
ee0007ab 869typedef MEM_SIZE STRLEN;
450a55e4 870
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LW
871typedef struct op OP;
872typedef struct cop COP;
873typedef struct unop UNOP;
874typedef struct binop BINOP;
875typedef struct listop LISTOP;
876typedef struct logop LOGOP;
877typedef struct condop CONDOP;
878typedef struct pmop PMOP;
879typedef struct svop SVOP;
880typedef struct gvop GVOP;
881typedef struct pvop PVOP;
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882typedef struct loop LOOP;
883
884typedef struct Outrec Outrec;
93a17b20 885typedef struct interpreter PerlInterpreter;
79072805 886typedef struct ff FF;
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887typedef struct sv SV;
888typedef struct av AV;
889typedef struct hv HV;
890typedef struct cv CV;
378cc40b 891typedef struct regexp REGEXP;
79072805 892typedef struct gp GP;
0c30d9ec 893typedef struct gv GV;
8990e307 894typedef struct io IO;
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LW
895typedef struct context CONTEXT;
896typedef struct block BLOCK;
897
898typedef struct magic MAGIC;
ed6116ce 899typedef struct xrv XRV;
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LW
900typedef struct xpv XPV;
901typedef struct xpviv XPVIV;
ff68c719 902typedef struct xpvuv XPVUV;
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LW
903typedef struct xpvnv XPVNV;
904typedef struct xpvmg XPVMG;
905typedef struct xpvlv XPVLV;
906typedef struct xpvav XPVAV;
907typedef struct xpvhv XPVHV;
908typedef struct xpvgv XPVGV;
909typedef struct xpvcv XPVCV;
910typedef struct xpvbm XPVBM;
911typedef struct xpvfm XPVFM;
8990e307 912typedef struct xpvio XPVIO;
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LW
913typedef struct mgvtbl MGVTBL;
914typedef union any ANY;
8d063cd8 915
378cc40b 916#include "handy.h"
a0d0e21e 917
16d20bd9
AD
918typedef I32 (*filter_t) _((int, SV *, int));
919#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
920#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
921#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
922
748a9306 923#ifdef DOSISH
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LW
924# if defined(OS2)
925# include "os2ish.h"
926# else
748a9306 927# include "dosish.h"
4633a7c4 928# endif
a0d0e21e 929#else
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LW
930# if defined(VMS)
931# include "vmsish.h"
932# else
0c30d9ec
PP
933# if defined(PLAN9)
934# include "./plan9/plan9ish.h"
935# else
936# include "unixish.h"
937# endif
748a9306
LW
938# endif
939#endif
3fc1aec6 940
68dc0745
PP
941#ifdef VMS
942# define STATUS_NATIVE statusvalue_vms
943# define STATUS_NATIVE_EXPORT \
944 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
945# define STATUS_NATIVE_SET(n) \
946 STMT_START { \
947 statusvalue_vms = (n); \
948 if ((I32)statusvalue_vms == -1) \
949 statusvalue = -1; \
950 else if (statusvalue_vms & STS$M_SUCCESS) \
951 statusvalue = 0; \
952 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
953 statusvalue = 1 << 8; \
954 else \
955 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
956 } STMT_END
957# define STATUS_POSIX statusvalue
958# ifdef VMSISH_STATUS
959# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
960# else
961# define STATUS_CURRENT STATUS_POSIX
962# endif
963# define STATUS_POSIX_SET(n) \
964 STMT_START { \
965 statusvalue = (n); \
966 if (statusvalue != -1) { \
967 statusvalue &= 0xFFFF; \
968 statusvalue_vms = statusvalue ? 44 : 1; \
969 } \
970 else statusvalue_vms = -1; \
971 } STMT_END
972# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
973# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
974#else
975# define STATUS_NATIVE STATUS_POSIX
976# define STATUS_NATIVE_EXPORT STATUS_POSIX
977# define STATUS_NATIVE_SET STATUS_POSIX_SET
978# define STATUS_POSIX statusvalue
979# define STATUS_POSIX_SET(n) \
980 STMT_START { \
981 statusvalue = (n); \
982 if (statusvalue != -1) \
983 statusvalue &= 0xFFFF; \
984 } STMT_END
985# define STATUS_CURRENT STATUS_POSIX
986# define STATUS_ALL_SUCCESS (statusvalue = 0)
987# define STATUS_ALL_FAILURE (statusvalue = 1)
988#endif
989
3fc1aec6
PP
990/* Some unistd.h's give a prototype for pause() even though
991 HAS_PAUSE ends up undefined. This causes the #define
992 below to be rejected by the compmiler. Sigh.
993*/
994#ifdef HAS_PAUSE
995#define Pause pause
996#else
997#define Pause() sleep((32767<<16)+32767)
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LW
998#endif
999
1000#ifndef IOCPARM_LEN
1001# ifdef IOCPARM_MASK
1002 /* on BSDish systes we're safe */
1003# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
1004# else
1005 /* otherwise guess at what's safe */
1006# define IOCPARM_LEN(x) 256
1007# endif
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LW
1008#endif
1009
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LW
1010union any {
1011 void* any_ptr;
1012 I32 any_i32;
a0d0e21e 1013 IV any_iv;
85e6fe83 1014 long any_long;
a0d0e21e 1015 void (*any_dptr) _((void*));
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1016};
1017
11343788
MB
1018#ifdef USE_THREADS
1019#define ARGSproto struct thread *
1020#else
1021#define ARGSproto void
1022#endif /* USE_THREADS */
1023
5aabfad6
PP
1024/* Work around some cygwin32 problems with importing global symbols */
1025#if defined(CYGWIN32) && defined(DLLIMPORT)
1026# include "cw32imp.h"
1027#endif
1028
378cc40b 1029#include "regexp.h"
79072805 1030#include "sv.h"
378cc40b 1031#include "util.h"
8d063cd8 1032#include "form.h"
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1033#include "gv.h"
1034#include "cv.h"
1035#include "opcode.h"
1036#include "op.h"
1037#include "cop.h"
1038#include "av.h"
1039#include "hv.h"
1040#include "mg.h"
1041#include "scope.h"
8d063cd8 1042
4633a7c4
LW
1043/* work around some libPW problems */
1044#ifdef DOINIT
1045EXT char Error[1];
1046#endif
1047
450a55e4 1048#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW
1049# define I286
1050#endif
1051
fe14fcc3
LW
1052#if defined(htonl) && !defined(HAS_HTONL)
1053#define HAS_HTONL
ae986130 1054#endif
fe14fcc3
LW
1055#if defined(htons) && !defined(HAS_HTONS)
1056#define HAS_HTONS
ae986130 1057#endif
fe14fcc3
LW
1058#if defined(ntohl) && !defined(HAS_NTOHL)
1059#define HAS_NTOHL
ae986130 1060#endif
fe14fcc3
LW
1061#if defined(ntohs) && !defined(HAS_NTOHS)
1062#define HAS_NTOHS
ae986130 1063#endif
fe14fcc3 1064#ifndef HAS_HTONL
d9d8d8de 1065#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW
1066#define HAS_HTONS
1067#define HAS_HTONL
1068#define HAS_NTOHS
1069#define HAS_NTOHL
a687059c
LW
1070#define MYSWAP
1071#define htons my_swap
1072#define htonl my_htonl
1073#define ntohs my_swap
1074#define ntohl my_ntohl
1075#endif
1076#else
d9d8d8de 1077#if (BYTEORDER & 0xffff) == 0x4321
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LW
1078#undef HAS_HTONS
1079#undef HAS_HTONL
1080#undef HAS_NTOHS
1081#undef HAS_NTOHL
a687059c
LW
1082#endif
1083#endif
1084
988174c1
LW
1085/*
1086 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1087 * -DWS
1088 */
1089#if BYTEORDER != 0x1234
1090# define HAS_VTOHL
1091# define HAS_VTOHS
1092# define HAS_HTOVL
1093# define HAS_HTOVS
1094# if BYTEORDER == 0x4321
1095# define vtohl(x) ((((x)&0xFF)<<24) \
1096 +(((x)>>24)&0xFF) \
1097 +(((x)&0x0000FF00)<<8) \
1098 +(((x)&0x00FF0000)>>8) )
1099# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1100# define htovl(x) vtohl(x)
1101# define htovs(x) vtohs(x)
1102# endif
1103 /* otherwise default to functions in util.c */
1104#endif
1105
0f85fab0 1106#ifdef CASTNEGFLOAT
79072805 1107#define U_S(what) ((U16)(what))
0f85fab0 1108#define U_I(what) ((unsigned int)(what))
79072805 1109#define U_L(what) ((U32)(what))
0f85fab0 1110#else
a6e633de
PP
1111# ifdef __cplusplus
1112 extern "C" {
1113# endif
a0d0e21e 1114U32 cast_ulong _((double));
a6e633de
PP
1115# ifdef __cplusplus
1116 }
1117# endif
232e078e
AD
1118#define U_S(what) ((U16)cast_ulong((double)(what)))
1119#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1120#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW
1121#endif
1122
ed6116ce
LW
1123#ifdef CASTI32
1124#define I_32(what) ((I32)(what))
a0d0e21e 1125#define I_V(what) ((IV)(what))
5d94fbed 1126#define U_V(what) ((UV)(what))
ed6116ce 1127#else
a6e633de
PP
1128# ifdef __cplusplus
1129 extern "C" {
1130# endif
a0d0e21e 1131I32 cast_i32 _((double));
a0d0e21e 1132IV cast_iv _((double));
5d94fbed 1133UV cast_uv _((double));
a6e633de
PP
1134# ifdef __cplusplus
1135 }
1136# endif
1137#define I_32(what) (cast_i32((double)(what)))
1138#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1139#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW
1140#endif
1141
79072805
LW
1142struct Outrec {
1143 I32 o_lines;
d9d8d8de 1144 char *o_str;
79072805 1145 U32 o_len;
8d063cd8
LW
1146};
1147
352d5a3a
LW
1148#ifndef MAXSYSFD
1149# define MAXSYSFD 2
1150#endif
ee0007ab 1151
f82b3d41
PP
1152#ifndef TMPPATH
1153# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1154#endif
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LW
1155
1156#ifndef __cplusplus
a0d0e21e
LW
1157Uid_t getuid _((void));
1158Uid_t geteuid _((void));
1159Gid_t getgid _((void));
1160Gid_t getegid _((void));
79072805 1161#endif
8d063cd8
LW
1162
1163#ifdef DEBUGGING
0c30d9ec 1164#ifndef Perl_debug_log
760ac839 1165#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1166#endif
d96024cf 1167#define YYDEBUG 1
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1168#define DEB(a) a
1169#define DEBUG(a) if (debug) a
1170#define DEBUG_p(a) if (debug & 1) a
1171#define DEBUG_s(a) if (debug & 2) a
1172#define DEBUG_l(a) if (debug & 4) a
1173#define DEBUG_t(a) if (debug & 8) a
1174#define DEBUG_o(a) if (debug & 16) a
1175#define DEBUG_c(a) if (debug & 32) a
1176#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1177#define DEBUG_m(a) if (curinterp && debug & 128) a
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LW
1178#define DEBUG_f(a) if (debug & 256) a
1179#define DEBUG_r(a) if (debug & 512) a
1180#define DEBUG_x(a) if (debug & 1024) a
1181#define DEBUG_u(a) if (debug & 2048) a
1182#define DEBUG_L(a) if (debug & 4096) a
1183#define DEBUG_H(a) if (debug & 8192) a
1184#define DEBUG_X(a) if (debug & 16384) a
8990e307 1185#define DEBUG_D(a) if (debug & 32768) a
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LW
1186#else
1187#define DEB(a)
1188#define DEBUG(a)
1189#define DEBUG_p(a)
1190#define DEBUG_s(a)
1191#define DEBUG_l(a)
1192#define DEBUG_t(a)
1193#define DEBUG_o(a)
1194#define DEBUG_c(a)
1195#define DEBUG_P(a)
1196#define DEBUG_m(a)
1197#define DEBUG_f(a)
1198#define DEBUG_r(a)
1199#define DEBUG_x(a)
1200#define DEBUG_u(a)
1201#define DEBUG_L(a)
1202#define DEBUG_H(a)
1203#define DEBUG_X(a)
8990e307 1204#define DEBUG_D(a)
8d063cd8 1205#endif
fe14fcc3 1206#define YYMAXDEPTH 300
8d063cd8 1207
a6e633de 1208#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW
1209#define assert(what) DEB( { \
1210 if (!(what)) { \
463ee0b2 1211 croak("Assertion failed: file \"%s\", line %d", \
79072805
LW
1212 __FILE__, __LINE__); \
1213 exit(1); \
1214 }})
a6e633de 1215#endif
8d063cd8 1216
450a55e4 1217struct ufuncs {
a0d0e21e
LW
1218 I32 (*uf_val)_((IV, SV*));
1219 I32 (*uf_set)_((IV, SV*));
1220 IV uf_index;
450a55e4
LW
1221};
1222
fe14fcc3 1223/* Fix these up for __STDC__ */
68dc0745 1224#ifndef DONT_DECLARE_STD
a0d0e21e
LW
1225char *mktemp _((char*));
1226double atof _((const char*));
1227#endif
79072805 1228
352d5a3a 1229#ifndef STANDARD_C
fe14fcc3 1230/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1231Time_t time();
8d063cd8 1232struct tm *gmtime(), *localtime();
93a17b20 1233char *strchr(), *strrchr();
378cc40b 1234char *strcpy(), *strcat();
352d5a3a 1235#endif /* ! STANDARD_C */
8d063cd8 1236
79072805
LW
1237
1238#ifdef I_MATH
1239# include <math.h>
1240#else
1241# ifdef __cplusplus
1242 extern "C" {
1243# endif
a0d0e21e 1244 double exp _((double));
a0d0e21e 1245 double log _((double));
c635e13b 1246 double log10 _((double));
a0d0e21e 1247 double sqrt _((double));
c635e13b
PP
1248 double frexp _((double,int*));
1249 double ldexp _((double,int));
a0d0e21e
LW
1250 double modf _((double,double*));
1251 double sin _((double));
1252 double cos _((double));
1253 double atan2 _((double,double));
1254 double pow _((double,double));
79072805
LW
1255# ifdef __cplusplus
1256 };
1257# endif
1258#endif
1259
a0d0e21e 1260#ifndef __cplusplus
3fc1aec6
PP
1261#ifdef __NeXT__ /* or whatever catches all NeXTs */
1262char *crypt (); /* Maybe more hosts will need the unprototyped version */
1263#else
a0d0e21e 1264char *crypt _((const char*, const char*));
3fc1aec6 1265#endif
68dc0745 1266#ifndef DONT_DECLARE_STD
1e422769 1267#ifndef getenv
a0d0e21e 1268char *getenv _((const char*));
1e422769 1269#endif
a0d0e21e 1270Off_t lseek _((int,Off_t,int));
68dc0745 1271#endif
a0d0e21e
LW
1272char *getlogin _((void));
1273#endif
79072805 1274
16d20bd9 1275#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1276#define UNLINK unlnk
a0d0e21e 1277I32 unlnk _((char*));
8d063cd8
LW
1278#else
1279#define UNLINK unlink
1280#endif
a687059c 1281
fe14fcc3 1282#ifndef HAS_SETREUID
85e6fe83
LW
1283# ifdef HAS_SETRESUID
1284# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1285# define HAS_SETREUID
1286# endif
a687059c 1287#endif
fe14fcc3 1288#ifndef HAS_SETREGID
85e6fe83
LW
1289# ifdef HAS_SETRESGID
1290# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1291# define HAS_SETREGID
1292# endif
a687059c 1293#endif
ee0007ab 1294
ff68c719
PP
1295typedef Signal_t (*Sighandler_t) _((int));
1296
1297#ifdef HAS_SIGACTION
1298typedef struct sigaction Sigsave_t;
1299#else
1300typedef Sighandler_t Sigsave_t;
1301#endif
1302
ee0007ab
LW
1303#define SCAN_DEF 0
1304#define SCAN_TR 1
1305#define SCAN_REPL 2
79072805
LW
1306
1307#ifdef DEBUGGING
4633a7c4 1308# ifndef register
a0d0e21e
LW
1309# define register
1310# endif
c07a80fd 1311# ifdef MYMALLOC
55497cff
PP
1312# ifndef DEBUGGING_MSTATS
1313# define DEBUGGING_MSTATS
1314# endif
c07a80fd 1315# endif
a0d0e21e 1316# define PAD_SV(po) pad_sv(po)
b83535cb 1317# define RUNOPS_DEFAULT runops_debug
79072805 1318#else
a0d0e21e 1319# define PAD_SV(po) curpad[po]
b83535cb 1320# define RUNOPS_DEFAULT runops_standard
79072805
LW
1321#endif
1322
1323/****************/
1324/* Truly global */
1325/****************/
1326
1327/* global state */
a0d0e21e 1328EXT PerlInterpreter * curinterp; /* currently running interpreter */
11343788 1329#ifdef USE_THREADS
0f15f207 1330EXT perl_key thr_key; /* For per-thread struct thread ptr */
12ca11f6
MB
1331EXT perl_mutex sv_mutex; /* Mutex for allocating SVs in sv.c */
1332EXT perl_mutex malloc_mutex; /* Mutex for malloc */
1333EXT perl_mutex eval_mutex; /* Mutex for doeval */
1334EXT perl_cond eval_cond; /* Condition variable for doeval */
11343788
MB
1335EXT struct thread * eval_owner; /* Owner thread for doeval */
1336EXT int nthreads; /* Number of threads currently */
12ca11f6
MB
1337EXT perl_mutex nthreads_mutex; /* Mutex for nthreads */
1338EXT perl_cond nthreads_cond; /* Condition variable for nthreads */
0f15f207
MB
1339#ifdef FAKE_THREADS
1340EXT struct thread * thr; /* Currently executing (fake) thread */
1341#endif
11343788
MB
1342#endif /* USE_THREADS */
1343
0c30d9ec
PP
1344/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1345#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1346#ifndef DONT_DECLARE_STD
79072805 1347extern char ** environ; /* environment variables supplied via exec */
a0d0e21e 1348#endif
0c30d9ec
PP
1349#else
1350# if defined(NeXT) && defined(__DYNAMIC__)
1351
1352# include <mach-o/dyld.h>
1353EXT char *** environ_pointer;
1354# define environ (*environ_pointer)
1355# endif
1356#endif /* environ processing */
1357
79072805
LW
1358EXT int uid; /* current real user id */
1359EXT int euid; /* current effective user id */
1360EXT int gid; /* current real group id */
1361EXT int egid; /* current effective group id */
1362EXT bool nomemok; /* let malloc context handle nomem */
1363EXT U32 an; /* malloc sequence number */
463ee0b2 1364EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1365EXT U16 op_seqmax; /* op sequence number */
8990e307 1366EXT U32 evalseq; /* eval sequence number */
463ee0b2 1367EXT U32 sub_generation; /* inc to force methods to be looked up again */
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LW
1368EXT char ** origenviron;
1369EXT U32 origalen;
44a8e56a 1370EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1371EXT U32 * profiledata;
84ea024a 1372EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1373EXT char * osname; /* operating system */
ff68c719 1374EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1375
a0d0e21e
LW
1376EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1377EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW
1378EXT double * xnv_root; /* free xnv list--shared by interpreters */
1379EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1380EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1381EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd
PP
1382EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1383EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1384
79072805
LW
1385/* Stack for currently executing thread--context switch must handle this. */
1386EXT SV ** stack_base; /* stack->array_ary */
1387EXT SV ** stack_sp; /* stack pointer now */
1388EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1389
1390/* likewise for these */
1391
462e5cf6
MB
1392#ifdef OP_IN_REGISTER
1393EXT OP * opsave; /* save current op register across longjmps */
1394#else
1395EXT OP * op; /* current op--when not in a global register */
1396#endif
b83535cb 1397EXT int (*runops) _((void)) INIT(RUNOPS_DEFAULT);
79072805
LW
1398EXT I32 * scopestack; /* blocks we've entered */
1399EXT I32 scopestack_ix;
1400EXT I32 scopestack_max;
1401
1402EXT ANY* savestack; /* to save non-local values on */
1403EXT I32 savestack_ix;
1404EXT I32 savestack_max;
1405
1406EXT OP ** retstack; /* returns we've pushed */
1407EXT I32 retstack_ix;
1408EXT I32 retstack_max;
1409
1410EXT I32 * markstack; /* stackmarks we're remembering */
1411EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1412EXT I32 * markstack_max; /* stackmarks we're remembering */
1413
1414EXT SV ** curpad;
1415
1416/* temp space */
1417EXT SV * Sv;
1418EXT XPV * Xpv;
79072805
LW
1419EXT char tokenbuf[256];
1420EXT struct stat statbuf;
ecfc5424 1421#ifdef HAS_TIMES
79072805
LW
1422EXT struct tms timesbuf;
1423#endif
463ee0b2 1424EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW
1425
1426/* for tmp use in stupid debuggers */
1427EXT int * di;
1428EXT short * ds;
1429EXT char * dc;
1430
1431/* handy constants */
71be2cbc
PP
1432EXTCONST char * Yes INIT("1");
1433EXTCONST char * No INIT("");
1434EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1435EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1436EXTCONST char * vert INIT("|");
79072805 1437
71be2cbc 1438EXTCONST char warn_uninit[]
a0d0e21e 1439 INIT("Use of uninitialized value");
71be2cbc 1440EXTCONST char warn_nosemi[]
463ee0b2 1441 INIT("Semicolon seems to be missing");
71be2cbc 1442EXTCONST char warn_reserved[]
463ee0b2 1443 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1444EXTCONST char warn_nl[]
93a17b20 1445 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1446EXTCONST char no_wrongref[]
a0d0e21e 1447 INIT("Can't use %s ref as %s ref");
71be2cbc 1448EXTCONST char no_symref[]
748a9306 1449 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1450EXTCONST char no_usym[]
8990e307 1451 INIT("Can't use an undefined value as %s reference");
71be2cbc 1452EXTCONST char no_aelem[]
93a17b20 1453 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1454EXTCONST char no_helem[]
93a17b20 1455 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1456EXTCONST char no_modify[]
93a17b20 1457 INIT("Modification of a read-only value attempted");
71be2cbc 1458EXTCONST char no_mem[]
93a17b20 1459 INIT("Out of memory!\n");
71be2cbc 1460EXTCONST char no_security[]
463ee0b2 1461 INIT("Insecure dependency in %s%s");
71be2cbc 1462EXTCONST char no_sock_func[]
93a17b20 1463 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1464EXTCONST char no_dir_func[]
93a17b20 1465 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1466EXTCONST char no_func[]
93a17b20 1467 INIT("The %s function is unimplemented");
71be2cbc 1468EXTCONST char no_myglob[]
748a9306 1469 INIT("\"my\" variable %s can't be in a package");
93a17b20 1470
79072805
LW
1471EXT SV sv_undef;
1472EXT SV sv_no;
1473EXT SV sv_yes;
1474#ifdef CSH
1475 EXT char * cshname INIT(CSH);
1476 EXT I32 cshlen;
1477#endif
1478
1479#ifdef DOINIT
8e07c86e
AD
1480EXT char *sig_name[] = { SIG_NAME };
1481EXT int sig_num[] = { SIG_NUM };
0c30d9ec
PP
1482EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1483EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW
1484#else
1485EXT char *sig_name[];
8e07c86e 1486EXT int sig_num[];
0c30d9ec
PP
1487EXT SV * psig_ptr[];
1488EXT SV * psig_name[];
79072805
LW
1489#endif
1490
bbce6d69
PP
1491/* fast case folding tables */
1492
79072805 1493#ifdef DOINIT
36477c24 1494EXTCONST unsigned char fold[] = {
79072805
LW
1495 0, 1, 2, 3, 4, 5, 6, 7,
1496 8, 9, 10, 11, 12, 13, 14, 15,
1497 16, 17, 18, 19, 20, 21, 22, 23,
1498 24, 25, 26, 27, 28, 29, 30, 31,
1499 32, 33, 34, 35, 36, 37, 38, 39,
1500 40, 41, 42, 43, 44, 45, 46, 47,
1501 48, 49, 50, 51, 52, 53, 54, 55,
1502 56, 57, 58, 59, 60, 61, 62, 63,
1503 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1504 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1505 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1506 'x', 'y', 'z', 91, 92, 93, 94, 95,
1507 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1508 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1509 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1510 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1511 128, 129, 130, 131, 132, 133, 134, 135,
1512 136, 137, 138, 139, 140, 141, 142, 143,
1513 144, 145, 146, 147, 148, 149, 150, 151,
1514 152, 153, 154, 155, 156, 157, 158, 159,
1515 160, 161, 162, 163, 164, 165, 166, 167,
1516 168, 169, 170, 171, 172, 173, 174, 175,
1517 176, 177, 178, 179, 180, 181, 182, 183,
1518 184, 185, 186, 187, 188, 189, 190, 191,
1519 192, 193, 194, 195, 196, 197, 198, 199,
1520 200, 201, 202, 203, 204, 205, 206, 207,
1521 208, 209, 210, 211, 212, 213, 214, 215,
1522 216, 217, 218, 219, 220, 221, 222, 223,
1523 224, 225, 226, 227, 228, 229, 230, 231,
1524 232, 233, 234, 235, 236, 237, 238, 239,
1525 240, 241, 242, 243, 244, 245, 246, 247,
1526 248, 249, 250, 251, 252, 253, 254, 255
1527};
1528#else
71be2cbc 1529EXTCONST unsigned char fold[];
79072805
LW
1530#endif
1531
1532#ifdef DOINIT
bbce6d69 1533EXT unsigned char fold_locale[] = {
79072805
LW
1534 0, 1, 2, 3, 4, 5, 6, 7,
1535 8, 9, 10, 11, 12, 13, 14, 15,
1536 16, 17, 18, 19, 20, 21, 22, 23,
1537 24, 25, 26, 27, 28, 29, 30, 31,
1538 32, 33, 34, 35, 36, 37, 38, 39,
1539 40, 41, 42, 43, 44, 45, 46, 47,
1540 48, 49, 50, 51, 52, 53, 54, 55,
1541 56, 57, 58, 59, 60, 61, 62, 63,
1542 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1543 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1544 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1545 'x', 'y', 'z', 91, 92, 93, 94, 95,
1546 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1547 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1548 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1549 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1550 128, 129, 130, 131, 132, 133, 134, 135,
1551 136, 137, 138, 139, 140, 141, 142, 143,
1552 144, 145, 146, 147, 148, 149, 150, 151,
1553 152, 153, 154, 155, 156, 157, 158, 159,
1554 160, 161, 162, 163, 164, 165, 166, 167,
1555 168, 169, 170, 171, 172, 173, 174, 175,
1556 176, 177, 178, 179, 180, 181, 182, 183,
1557 184, 185, 186, 187, 188, 189, 190, 191,
1558 192, 193, 194, 195, 196, 197, 198, 199,
1559 200, 201, 202, 203, 204, 205, 206, 207,
1560 208, 209, 210, 211, 212, 213, 214, 215,
1561 216, 217, 218, 219, 220, 221, 222, 223,
1562 224, 225, 226, 227, 228, 229, 230, 231,
1563 232, 233, 234, 235, 236, 237, 238, 239,
1564 240, 241, 242, 243, 244, 245, 246, 247,
1565 248, 249, 250, 251, 252, 253, 254, 255
1566};
1567#else
bbce6d69 1568EXT unsigned char fold_locale[];
79072805
LW
1569#endif
1570
1571#ifdef DOINIT
71be2cbc 1572EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1573 1, 2, 84, 151, 154, 155, 156, 157,
1574 165, 246, 250, 3, 158, 7, 18, 29,
1575 40, 51, 62, 73, 85, 96, 107, 118,
1576 129, 140, 147, 148, 149, 150, 152, 153,
1577 255, 182, 224, 205, 174, 176, 180, 217,
1578 233, 232, 236, 187, 235, 228, 234, 226,
1579 222, 219, 211, 195, 188, 193, 185, 184,
1580 191, 183, 201, 229, 181, 220, 194, 162,
1581 163, 208, 186, 202, 200, 218, 198, 179,
1582 178, 214, 166, 170, 207, 199, 209, 206,
1583 204, 160, 212, 216, 215, 192, 175, 173,
1584 243, 172, 161, 190, 203, 189, 164, 230,
1585 167, 248, 227, 244, 242, 255, 241, 231,
1586 240, 253, 169, 210, 245, 237, 249, 247,
1587 239, 168, 252, 251, 254, 238, 223, 221,
1588 213, 225, 177, 197, 171, 196, 159, 4,
1589 5, 6, 8, 9, 10, 11, 12, 13,
1590 14, 15, 16, 17, 19, 20, 21, 22,
1591 23, 24, 25, 26, 27, 28, 30, 31,
1592 32, 33, 34, 35, 36, 37, 38, 39,
1593 41, 42, 43, 44, 45, 46, 47, 48,
1594 49, 50, 52, 53, 54, 55, 56, 57,
1595 58, 59, 60, 61, 63, 64, 65, 66,
1596 67, 68, 69, 70, 71, 72, 74, 75,
1597 76, 77, 78, 79, 80, 81, 82, 83,
1598 86, 87, 88, 89, 90, 91, 92, 93,
1599 94, 95, 97, 98, 99, 100, 101, 102,
1600 103, 104, 105, 106, 108, 109, 110, 111,
1601 112, 113, 114, 115, 116, 117, 119, 120,
1602 121, 122, 123, 124, 125, 126, 127, 128,
1603 130, 131, 132, 133, 134, 135, 136, 137,
1604 138, 139, 141, 142, 143, 144, 145, 146
1605};
1606#else
71be2cbc 1607EXTCONST unsigned char freq[];
79072805
LW
1608#endif
1609
8990e307
LW
1610#ifdef DEBUGGING
1611#ifdef DOINIT
71be2cbc 1612EXTCONST char* block_type[] = {
8990e307
LW
1613 "NULL",
1614 "SUB",
1615 "EVAL",
1616 "LOOP",
1617 "SUBST",
1618 "BLOCK",
1619};
1620#else
71be2cbc 1621EXTCONST char* block_type[];
8990e307
LW
1622#endif
1623#endif
1624
79072805
LW
1625/*****************************************************************************/
1626/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1627/*****************************************************************************/
8990e307 1628/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1629
a0d0e21e
LW
1630#include "perly.h"
1631
79072805
LW
1632typedef enum {
1633 XOPERATOR,
1634 XTERM,
79072805 1635 XREF,
8990e307 1636 XSTATE,
a0d0e21e
LW
1637 XBLOCK,
1638 XTERMBLOCK
79072805
LW
1639} expectation;
1640
a0d0e21e
LW
1641EXT U32 lex_state; /* next token is determined */
1642EXT U32 lex_defer; /* state after determined token */
1643EXT expectation lex_expect; /* expect after determined token */
1644EXT I32 lex_brackets; /* bracket count */
1645EXT I32 lex_formbrack; /* bracket count at outer format level */
1646EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1647EXT I32 lex_casemods; /* casemod count */
1648EXT I32 lex_dojoin; /* doing an array interpolation */
1649EXT I32 lex_starts; /* how many interps done on level */
1650EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1651EXT SV * lex_repl; /* runtime replacement from s/// */
1652EXT OP * lex_op; /* extra info to pass back on op */
1653EXT OP * lex_inpat; /* in pattern $) and $| are special */
1654EXT I32 lex_inwhat; /* what kind of quoting are we in */
1655EXT char * lex_brackstack; /* what kind of brackets to pop */
1656EXT char * lex_casestack; /* what kind of case mods in effect */
1657
1658/* What we know when we're in LEX_KNOWNEXT state. */
1659EXT YYSTYPE nextval[5]; /* value of next token, if any */
1660EXT I32 nexttype[5]; /* type of next token */
1661EXT I32 nexttoke;
1662
760ac839 1663EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1664EXT SV * linestr;
1665EXT char * bufptr;
1666EXT char * oldbufptr;
1667EXT char * oldoldbufptr;
1668EXT char * bufend;
8990e307 1669EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1670EXT AV * rsfp_filters;
79072805
LW
1671
1672EXT I32 multi_start; /* 1st line of multi-line string */
1673EXT I32 multi_end; /* last line of multi-line string */
1674EXT I32 multi_open; /* delimiter of said string */
1675EXT I32 multi_close; /* delimiter of said string */
1676
1677EXT GV * scrgv;
1678EXT I32 error_count; /* how many errors so far, max 10 */
1679EXT I32 subline; /* line this subroutine began on */
1680EXT SV * subname; /* name of current subroutine */
1681
748a9306 1682EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1683EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1684EXT AV * comppad_name; /* variable names for "my" variables */
1685EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1686EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1687EXT I32 min_intro_pending;/* start of vars to introduce */
1688EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1689EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1690EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1691EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
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1692EXT COP compiling;
1693
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1694EXT I32 thisexpr; /* name id for nothing_in_common() */
1695EXT char * last_uni; /* position of last named-unary operator */
1696EXT char * last_lop; /* position of last list operator */
8990e307 1697EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1698EXT bool in_my; /* we're compiling a "my" declaration */
c750a3ec 1699EXT HV * in_my_stash; /* declared class of this "my" declaration */
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1700#ifdef FCRYPT
1701EXT I32 cryptseen; /* has fast crypt() been initialized? */
1702#endif
1703
85e6fe83
LW
1704EXT U32 hints; /* various compilation flags */
1705
1706 /* Note: the lowest 8 bits are reserved for
1707 stuffing into op->op_private */
1708#define HINT_INTEGER 0x00000001
1709#define HINT_STRICT_REFS 0x00000002
1710
1711#define HINT_BLOCK_SCOPE 0x00000100
1712#define HINT_STRICT_SUBS 0x00000200
1713#define HINT_STRICT_VARS 0x00000400
bbce6d69 1714#define HINT_LOCALE 0x00000800
85e6fe83 1715
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1716/**************************************************************************/
1717/* This regexp stuff is global since it always happens within 1 expr eval */
1718/**************************************************************************/
1719
1720EXT char * regprecomp; /* uncompiled string. */
1721EXT char * regparse; /* Input-scan pointer. */
1722EXT char * regxend; /* End of input for compile */
1723EXT I32 regnpar; /* () count. */
1724EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1725EXT I32 regsize; /* Code size. */
a0d0e21e 1726EXT I32 regnaughty; /* How bad is this pattern? */
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1727EXT I32 regsawback; /* Did we see \1, ...? */
1728
1729EXT char * reginput; /* String-input pointer. */
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LW
1730EXT char * regbol; /* Beginning of input, for ^ check. */
1731EXT char * regeol; /* End of input, for $ check. */
1732EXT char ** regstartp; /* Pointer to startp array. */
1733EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1734EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1735EXT char * regtill; /* How far we are required to go. */
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LW
1736EXT U16 regflags; /* are we folding, multilining? */
1737EXT char regprev; /* char before regbol, \n if none */
79072805 1738
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1739EXT bool do_undump; /* -u or dump seen? */
1740EXT VOL U32 debug;
1741
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1742/***********************************************/
1743/* Global only to current interpreter instance */
1744/***********************************************/
1745
8990e307 1746#ifdef MULTIPLICITY
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1747#define IEXT
1748#define IINIT(x)
1749struct interpreter {
1750#else
1751#define IEXT EXT
1752#define IINIT(x) INIT(x)
1753#endif
1754
1755/* pseudo environmental stuff */
1756IEXT int Iorigargc;
1757IEXT char ** Iorigargv;
1758IEXT GV * Ienvgv;
1759IEXT GV * Isiggv;
1760IEXT GV * Iincgv;
1761IEXT char * Iorigfilename;
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LW
1762IEXT SV * Idiehook;
1763IEXT SV * Iwarnhook;
1764IEXT SV * Iparsehook;
79072805 1765
c07a80fd
PP
1766/* Various states of an input record separator SV (rs, nrs) */
1767#define RsSNARF(sv) (! SvOK(sv))
1768#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1769#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1770
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LW
1771/* switches */
1772IEXT char * Icddir;
1773IEXT bool Iminus_c;
a5f75d66 1774IEXT char Ipatchlevel[10];
728e2803 1775IEXT char ** Ilocalpatches;
c07a80fd 1776IEXT SV * Inrs;
2304df62 1777IEXT char * Isplitstr IINIT(" ");
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LW
1778IEXT bool Ipreprocess;
1779IEXT bool Iminus_n;
1780IEXT bool Iminus_p;
1781IEXT bool Iminus_l;
1782IEXT bool Iminus_a;
2304df62 1783IEXT bool Iminus_F;
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LW
1784IEXT bool Idoswitches;
1785IEXT bool Idowarn;
1786IEXT bool Idoextract;
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LW
1787IEXT bool Isawampersand; /* must save all match strings */
1788IEXT bool Isawstudy; /* do fbm_instr on all strings */
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LW
1789IEXT bool Isawvec;
1790IEXT bool Iunsafe;
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LW
1791IEXT char * Iinplace;
1792IEXT char * Ie_tmpname;
760ac839 1793IEXT PerlIO * Ie_fp;
79072805 1794IEXT U32 Iperldb;
748a9306 1795 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1796IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
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1797
1798/* magical thingies */
85e6fe83 1799IEXT Time_t Ibasetime; /* $^T */
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1800IEXT SV * Iformfeed; /* $^L */
1801IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1802IEXT SV * Irs; /* $/ */
79072805 1803IEXT char * Iofs; /* $, */
8990e307 1804IEXT STRLEN Iofslen;
79072805 1805IEXT char * Iors; /* $\ */
8990e307 1806IEXT STRLEN Iorslen;
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1807IEXT char * Iofmt; /* $# */
1808IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1809IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1810IEXT I32 Istatusvalue; /* $? */
f86702cc 1811#ifdef VMS
ff0cee69 1812IEXT U32 Istatusvalue_vms;
f86702cc 1813#endif
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LW
1814
1815IEXT struct stat Istatcache; /* _ */
1816IEXT GV * Istatgv;
1817IEXT SV * Istatname IINIT(Nullsv);
1818
1819/* shortcuts to various I/O objects */
1820IEXT GV * Istdingv;
1821IEXT GV * Ilast_in_gv;
1822IEXT GV * Idefgv;
1823IEXT GV * Iargvgv;
1824IEXT GV * Idefoutgv;
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LW
1825IEXT GV * Iargvoutgv;
1826
1827/* shortcuts to regexp stuff */
1828IEXT GV * Ileftgv;
1829IEXT GV * Iampergv;
1830IEXT GV * Irightgv;
1831IEXT PMOP * Icurpm; /* what to do \ interps from */
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1832IEXT I32 * Iscreamfirst;
1833IEXT I32 * Iscreamnext;
1834IEXT I32 Imaxscream IINIT(-1);
1835IEXT SV * Ilastscream;
1836
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LW
1837/* shortcuts to misc objects */
1838IEXT GV * Ierrgv;
1839
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LW
1840/* shortcuts to debugging objects */
1841IEXT GV * IDBgv;
1842IEXT GV * IDBline;
1843IEXT GV * IDBsub;
1844IEXT SV * IDBsingle;
1845IEXT SV * IDBtrace;
1846IEXT SV * IDBsignal;
1847IEXT AV * Ilineary; /* lines of script for debugger */
1848IEXT AV * Idbargs; /* args to call listed by caller function */
1849
1850/* symbol tables */
1851IEXT HV * Idefstash; /* main symbol table */
1852IEXT HV * Icurstash; /* symbol table for current package */
1853IEXT HV * Idebstash; /* symbol table for perldb package */
1854IEXT SV * Icurstname; /* name of current package */
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LW
1855IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1856IEXT AV * Iendav; /* names of END subroutines */
7d07dbc2 1857IEXT AV * Iinitav; /* names of INIT subroutines */
0c30d9ec 1858IEXT HV * Istrtab; /* shared string table */
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LW
1859
1860/* memory management */
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LW
1861IEXT SV ** Itmps_stack;
1862IEXT I32 Itmps_ix IINIT(-1);
1863IEXT I32 Itmps_floor IINIT(-1);
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LW
1864IEXT I32 Itmps_max;
1865IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1866IEXT I32 Isv_objcount; /* how many objects are currently allocated */
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LW
1867IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1868IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
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LW
1869
1870/* funky return mechanisms */
1871IEXT I32 Ilastspbase;
1872IEXT I32 Ilastsize;
1873IEXT int Iforkprocess; /* so do_open |- can return proc# */
1874
1875/* subprocess state */
1876IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
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LW
1877
1878/* internal state */
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LW
1879IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1880IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1881IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1882IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1883IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1884IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1885IEXT bool Itainting; /* doing taint checks */
e50aee73 1886IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
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LW
1887
1888/* trace state */
1889IEXT I32 Idlevel;
1890IEXT I32 Idlmax IINIT(128);
1891IEXT char * Idebname;
1892IEXT char * Idebdelim;
1893
1894/* current interpreter roots */
748a9306 1895IEXT CV * Imain_cv;
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LW
1896IEXT OP * Imain_root;
1897IEXT OP * Imain_start;
1898IEXT OP * Ieval_root;
1899IEXT OP * Ieval_start;
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1900
1901/* runtime control stuff */
1902IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1903IEXT COP * Icurcopdb IINIT(NULL);
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LW
1904IEXT line_t Icopline IINIT(NOLINE);
1905IEXT CONTEXT * Icxstack;
1906IEXT I32 Icxstack_ix IINIT(-1);
1907IEXT I32 Icxstack_max IINIT(128);
54310121
PP
1908IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1909IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1910IEXT I32 Irunlevel;
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LW
1911
1912/* stack stuff */
0c30d9ec 1913IEXT AV * Icurstack; /* THE STACK */
79072805 1914IEXT AV * Imainstack; /* the stack when nothing funny is happening */
0f15f207 1915#if 0
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LW
1916IEXT SV ** Imystack_base; /* stack->array_ary */
1917IEXT SV ** Imystack_sp; /* stack pointer now */
1918IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
0f15f207 1919#endif
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1920
1921/* format accumulators */
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LW
1922IEXT SV * Iformtarget;
1923IEXT SV * Ibodytarget;
1924IEXT SV * Itoptarget;
79072805
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1925
1926/* statics moved here for shared library purposes */
93a17b20 1927IEXT SV Istrchop; /* return value from chop */
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LW
1928IEXT int Ifilemode; /* so nextargv() can preserve mode */
1929IEXT int Ilastfd; /* what to preserve mode on */
1930IEXT char * Ioldname; /* what to preserve mode on */
1931IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1932IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1933IEXT OP * Isortcop; /* user defined sort routine */
1934IEXT HV * Isortstash; /* which is in some package or other */
1935IEXT GV * Ifirstgv; /* $a */
1936IEXT GV * Isecondgv; /* $b */
1937IEXT AV * Isortstack; /* temp stack during pp_sort() */
1938IEXT AV * Isignalstack; /* temp stack during sighandler() */
1939IEXT SV * Imystrk; /* temp key string for do_each() */
1940IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
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LW
1941IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1942IEXT I32 Igensym; /* next symbol for getsym() to define */
1943IEXT bool Ipreambled;
3c81428c 1944IEXT AV * Ipreambleav;
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LW
1945IEXT int Ilaststatval IINIT(-1);
1946IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1947IEXT SV * Imess_sv;
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LW
1948
1949#undef IEXT
1950#undef IINIT
1951
8990e307 1952#ifdef MULTIPLICITY
79072805
LW
1953};
1954#else
1955struct interpreter {
1956 char broiled;
1957};
1958#endif
1959
11343788 1960#include "thread.h"
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1961#include "pp.h"
1962
1963#ifdef __cplusplus
1964extern "C" {
1965#endif
1966
1967#include "proto.h"
1968
a0d0e21e
LW
1969#ifdef EMBED
1970#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1971#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1972#else
1973#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1974#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1975#endif
1976
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1977#ifdef __cplusplus
1978};
1979#endif
1980
93a17b20 1981/* The following must follow proto.h */
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1982
1983#ifdef DOINIT
bbce6d69 1984
4633a7c4 1985EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW
1986 magic_set,
1987 magic_len,
1988 0, 0};
4633a7c4
LW
1989EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1990EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW
1991 0, magic_clearenv,
1992 0};
4633a7c4 1993EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec
PP
1994EXT MGVTBL vtbl_sigelem = {magic_getsig,
1995 magic_setsig,
1996 0, magic_clearsig,
1997 0};
4633a7c4 1998EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1999 0};
4633a7c4 2000EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW
2001 magic_setpack,
2002 0, magic_clearpack,
2003 0};
4633a7c4 2004EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 2005 0, 0, 0};
4633a7c4 2006EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 2007 0, 0, 0};
4633a7c4 2008EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 2009 0, 0, 0};
4633a7c4 2010EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2
LW
2011 magic_setarylen,
2012 0, 0, 0};
4633a7c4 2013EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW
2014 magic_setglob,
2015 0, 0, 0};
4633a7c4 2016EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 2017 0, 0, 0};
99abf803
PP
2018EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
2019 0, 0, 0};
4633a7c4 2020EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 2021 0, 0, 0};
4633a7c4 2022EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 2023 0, 0, 0};
4633a7c4 2024EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 2025 0, 0, 0};
4633a7c4 2026EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW
2027 magic_setpos,
2028 0, 0, 0};
4633a7c4 2029EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 2030 0, 0, 0};
55497cff
PP
2031EXT MGVTBL vtbl_fm = {0, magic_setfm,
2032 0, 0, 0};
4633a7c4 2033EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW
2034 magic_setuvar,
2035 0, 0, 0};
f93b4edd
MB
2036#ifdef USE_THREADS
2037EXT MGVTBL vtbl_mutex = {0, 0, 0, 0, magic_mutexfree};
2038#endif /* USE_THREADS */
68dc0745
PP
2039EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
2040 0, 0, magic_freedefelem};
a0d0e21e 2041
36477c24 2042#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2043EXT MGVTBL vtbl_collxfrm = {0,
2044 magic_setcollxfrm,
2045 0, 0, 0};
2046#endif
a0d0e21e
LW
2047
2048#ifdef OVERLOAD
4633a7c4 2049EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 2050 0, 0, magic_setamagic};
4633a7c4 2051EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 2052 0, 0, magic_setamagic};
a0d0e21e
LW
2053#endif /* OVERLOAD */
2054
bbce6d69
PP
2055#else /* !DOINIT */
2056
79072805
LW
2057EXT MGVTBL vtbl_sv;
2058EXT MGVTBL vtbl_env;
2059EXT MGVTBL vtbl_envelem;
2060EXT MGVTBL vtbl_sig;
2061EXT MGVTBL vtbl_sigelem;
463ee0b2
LW
2062EXT MGVTBL vtbl_pack;
2063EXT MGVTBL vtbl_packelem;
79072805 2064EXT MGVTBL vtbl_dbline;
463ee0b2
LW
2065EXT MGVTBL vtbl_isa;
2066EXT MGVTBL vtbl_isaelem;
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LW
2067EXT MGVTBL vtbl_arylen;
2068EXT MGVTBL vtbl_glob;
93a17b20 2069EXT MGVTBL vtbl_mglob;
99abf803 2070EXT MGVTBL vtbl_nkeys;
463ee0b2 2071EXT MGVTBL vtbl_taint;
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LW
2072EXT MGVTBL vtbl_substr;
2073EXT MGVTBL vtbl_vec;
a0d0e21e 2074EXT MGVTBL vtbl_pos;
79072805 2075EXT MGVTBL vtbl_bm;
55497cff 2076EXT MGVTBL vtbl_fm;
79072805 2077EXT MGVTBL vtbl_uvar;
a0d0e21e 2078
f93b4edd
MB
2079#ifdef USE_THREADS
2080EXT MGVTBL vtbl_mutex;
2081#endif /* USE_THREADS */
2082
68dc0745 2083EXT MGVTBL vtbl_defelem;
a0d0e21e 2084
36477c24 2085#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2086EXT MGVTBL vtbl_collxfrm;
2087#endif
a0d0e21e
LW
2088
2089#ifdef OVERLOAD
2090EXT MGVTBL vtbl_amagic;
2091EXT MGVTBL vtbl_amagicelem;
2092#endif /* OVERLOAD */
2093
bbce6d69 2094#endif /* !DOINIT */
85e6fe83 2095
a0d0e21e 2096#ifdef OVERLOAD
c0315cdf 2097
a0d0e21e
LW
2098EXT long amagic_generation;
2099
a6006777 2100#define NofAMmeth 58
a0d0e21e 2101#ifdef DOINIT
a6006777
PP
2102EXTCONST char * AMG_names[NofAMmeth] = {
2103 "fallback", "abs", /* "fallback" should be the first. */
2104 "bool", "nomethod",
2105 "\"\"", "0+",
2106 "+", "+=",
2107 "-", "-=",
2108 "*", "*=",
2109 "/", "/=",
2110 "%", "%=",
2111 "**", "**=",
2112 "<<", "<<=",
2113 ">>", ">>=",
2114 "&", "&=",
2115 "|", "|=",
2116 "^", "^=",
2117 "<", "<=",
2118 ">", ">=",
2119 "==", "!=",
2120 "<=>", "cmp",
2121 "lt", "le",
2122 "gt", "ge",
2123 "eq", "ne",
2124 "!", "~",
2125 "++", "--",
2126 "atan2", "cos",
2127 "sin", "exp",
2128 "log", "sqrt",
2129 "x", "x=",
2130 ".", ".=",
2131 "=", "neg"
a0d0e21e
LW
2132};
2133#else
a6006777 2134EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW
2135#endif /* def INITAMAGIC */
2136
a6006777 2137struct am_table {
a0d0e21e
LW
2138 long was_ok_sub;
2139 long was_ok_am;
a6006777
PP
2140 U32 flags;
2141 CV* table[NofAMmeth];
a0d0e21e
LW
2142 long fallback;
2143};
a6006777
PP
2144struct am_table_short {
2145 long was_ok_sub;
2146 long was_ok_am;
2147 U32 flags;
2148};
a0d0e21e 2149typedef struct am_table AMT;
a6006777 2150typedef struct am_table_short AMTS;
a0d0e21e
LW
2151
2152#define AMGfallNEVER 1
2153#define AMGfallNO 2
2154#define AMGfallYES 3
2155
a6006777
PP
2156#define AMTf_AMAGIC 1
2157#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2158#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2159#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2160
a0d0e21e
LW
2161enum {
2162 fallback_amg, abs_amg,
2163 bool__amg, nomethod_amg,
2164 string_amg, numer_amg,
2165 add_amg, add_ass_amg,
2166 subtr_amg, subtr_ass_amg,
2167 mult_amg, mult_ass_amg,
2168 div_amg, div_ass_amg,
2169 mod_amg, mod_ass_amg,
2170 pow_amg, pow_ass_amg,
2171 lshift_amg, lshift_ass_amg,
2172 rshift_amg, rshift_ass_amg,
748a9306
LW
2173 band_amg, band_ass_amg,
2174 bor_amg, bor_ass_amg,
2175 bxor_amg, bxor_ass_amg,
a0d0e21e
LW
2176 lt_amg, le_amg,
2177 gt_amg, ge_amg,
2178 eq_amg, ne_amg,
2179 ncmp_amg, scmp_amg,
2180 slt_amg, sle_amg,
2181 sgt_amg, sge_amg,
2182 seq_amg, sne_amg,
a0d0e21e
LW
2183 not_amg, compl_amg,
2184 inc_amg, dec_amg,
2185 atan2_amg, cos_amg,
2186 sin_amg, exp_amg,
2187 log_amg, sqrt_amg,
2188 repeat_amg, repeat_ass_amg,
748a9306
LW
2189 concat_amg, concat_ass_amg,
2190 copy_amg, neg_amg
a0d0e21e 2191};
c0315cdf
JH
2192
2193/*
2194 * some compilers like to redefine cos et alia as faster
2195 * (and less accurate?) versions called F_cos et cetera (Quidquid
2196 * latine dictum sit, altum viditur.) This trick collides with
2197 * the Perl overloading (amg). The following #defines fool both.
2198 */
2199
2200#ifdef _FASTMATH
2201# ifdef atan2
2202# define F_atan2_amg atan2_amg
2203# endif
2204# ifdef cos
2205# define F_cos_amg cos_amg
2206# endif
2207# ifdef exp
2208# define F_exp_amg exp_amg
2209# endif
2210# ifdef log
2211# define F_log_amg log_amg
2212# endif
2213# ifdef pow
2214# define F_pow_amg pow_amg
2215# endif
2216# ifdef sin
2217# define F_sin_amg sin_amg
2218# endif
2219# ifdef sqrt
2220# define F_sqrt_amg sqrt_amg
2221# endif
2222#endif /* _FASTMATH */
2223
a0d0e21e
LW
2224#endif /* OVERLOAD */
2225
36477c24 2226#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2227EXT U32 collation_ix; /* Collation generation index */
2228EXT char * collation_name; /* Name of current collation */
2229EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2230EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2231EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2232#endif /* USE_LOCALE_COLLATE */
bbce6d69 2233
36477c24 2234#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2235
2236EXT char * numeric_name; /* Name of current numeric locale */
2237EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2238EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2239
36477c24
PP
2240#define SET_NUMERIC_STANDARD() \
2241 STMT_START { \
2242 if (! numeric_standard) \
2243 perl_set_numeric_standard(); \
2244 } STMT_END
2245
2246#define SET_NUMERIC_LOCAL() \
2247 STMT_START { \
2248 if (! numeric_local) \
2249 perl_set_numeric_local(); \
2250 } STMT_END
bbce6d69 2251
36477c24 2252#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2253
36477c24
PP
2254#define SET_NUMERIC_STANDARD() /**/
2255#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2256
36477c24 2257#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2258
760ac839
LW
2259#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2260/*
2261 * Now we have __attribute__ out of the way
2262 * Remap printf
2263 */
2264#define printf PerlIO_stdoutf
2265#endif
2266
85e6fe83 2267#endif /* Include guard */
a6e633de 2268