This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
new (Feb 1) perlembed.pod
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
a0d0e21e 3 * Copyright (c) 1987-1994, Larry Wall
a687059c 4 *
352d5a3a
LW
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
LW
9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
760ac839
LW
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
55497cff
PP
20#undef NO_EMBED
21#define NO_EMBED
22#undef MULTIPLICITY
760ac839
LW
23#undef USE_STDIO
24#define USE_STDIO
25#endif /* PERL_FOR_X2P */
26
71be2cbc
PP
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))
40# if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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
55497cff
PP
55/*
56 * SOFT_CAST can be used for args to prototyped functions to retain some
57 * type checking; it only casts if the compiler does not know prototypes.
58 */
59#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
60#define SOFT_CAST(type)
61#else
62#define SOFT_CAST(type) (type)
63#endif
64
79072805
LW
65#ifndef BYTEORDER
66# define BYTEORDER 0x1234
67#endif
68
69/* Overall memory policy? */
70#ifndef CONSERVATIVE
71# define LIBERAL 1
72#endif
73
74/*
75 * The following contortions are brought to you on behalf of all the
76 * standards, semi-standards, de facto standards, not-so-de-facto standards
77 * of the world, as well as all the other botches anyone ever thought of.
78 * The basic theory is that if we work hard enough here, the rest of the
79 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
80 */
ac58e20f 81
ee0007ab
LW
82/* define this once if either system, instead of cluttering up the src */
83#if defined(MSDOS) || defined(atarist)
84#define DOSISH 1
85#endif
86
a0d0e21e 87#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
352d5a3a
LW
88# define STANDARD_C 1
89#endif
90
91#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805
LW
92# ifdef __cplusplus
93# define VOL // to temporarily suppress warnings
94# else
95# define VOL volatile
96# endif
663a0e37 97#else
79072805 98# define VOL
663a0e37
LW
99#endif
100
bbce6d69
PP
101#define TAINT (tainted = TRUE)
102#define TAINT_NOT (tainted = FALSE)
103#define TAINT_IF(c) if (c) { tainted = TRUE; }
104#define TAINT_ENV() if (tainting) { taint_env(); }
105#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 106
a6e633de
PP
107/* XXX All process group stuff is handled in pp_sys.c. Should these
108 defines move there? If so, I could simplify this a lot. --AD 9/96.
109*/
110/* Process group stuff changed from traditional BSD to POSIX.
111 perlfunc.pod documents the traditional BSD-style syntax, so we'll
112 try to preserve that, if possible.
113*/
114#ifdef HAS_SETPGID
115# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 116#else
a6e633de
PP
117# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
118# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
119# else
120# ifdef HAS_SETPGRP2 /* DG/UX */
121# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
122# endif
123# endif
124#endif
125#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
126# define HAS_SETPGRP /* Well, effectively it does . . . */
127#endif
128
129/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
130 our life easier :-) so we'll try it.
131*/
132#ifdef HAS_GETPGID
133# define BSD_GETPGRP(pid) getpgid((pid))
134#else
135# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
136# define BSD_GETPGRP(pid) getpgrp((pid))
137# else
138# ifdef HAS_GETPGRP2 /* DG/UX */
139# define BSD_GETPGRP(pid) getpgrp2((pid))
140# endif
141# endif
142#endif
143#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
144# define HAS_GETPGRP /* Well, effectively it does . . . */
145#endif
146
147/* These are not exact synonyms, since setpgrp() and getpgrp() may
148 have different behaviors, but perl.h used to define USE_BSDPGRP
149 (prior to 5.003_05) so some extension might depend on it.
150*/
151#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
152# ifndef USE_BSDPGRP
153# define USE_BSDPGRP
154# endif
663a0e37
LW
155#endif
156
760ac839
LW
157#ifndef _TYPES_ /* If types.h defines this it's easy. */
158# ifndef major /* Does everyone's types.h define this? */
159# include <sys/types.h>
160# endif
161#endif
162
163#ifdef __cplusplus
164# ifndef I_STDARG
165# define I_STDARG 1
166# endif
167#endif
168
169#ifdef I_STDARG
170# include <stdarg.h>
171#else
172# ifdef I_VARARGS
173# include <varargs.h>
174# endif
175#endif
176
177#include "perlio.h"
0c30d9ec 178
4633a7c4 179#ifdef USE_NEXT_CTYPE
0c30d9ec
PP
180
181#if NX_CURRENT_COMPILER_RELEASE >= 400
182#include <objc/NXCType.h>
183#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 184#include <appkit/NXCType.h>
0c30d9ec
PP
185#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
186
187#else /* !USE_NEXT_CTYPE */
fe14fcc3 188#include <ctype.h>
0c30d9ec 189#endif /* USE_NEXT_CTYPE */
a0d0e21e
LW
190
191#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
192#undef METHOD
193#endif
194
36477c24
PP
195#ifdef I_LOCALE
196# include <locale.h>
197#endif
198
199#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
200# define USE_LOCALE
201# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
202 && defined(HAS_STRXFRM)
203# define USE_LOCALE_COLLATE
204# endif
205# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
206# define USE_LOCALE_CTYPE
207# endif
208# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
209# define USE_LOCALE_NUMERIC
210# endif
211#endif /* !NO_LOCALE && HAS_SETLOCALE */
212
fe14fcc3 213#include <setjmp.h>
79072805 214
a0d0e21e 215#ifdef I_SYS_PARAM
79072805
LW
216# ifdef PARAM_NEEDS_TYPES
217# include <sys/types.h>
218# endif
219# include <sys/param.h>
352d5a3a 220#endif
79072805
LW
221
222
223/* Use all the "standard" definitions? */
a0d0e21e 224#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 225# include <stdlib.h>
ff68c719 226#endif
03a14243 227
55497cff
PP
228/* This comes after <stdlib.h> so we don't try to change the standard
229 * library prototypes; we'll use our own in proto.h instead. */
230
4633a7c4 231#ifdef MYMALLOC
55497cff 232
760ac839 233# ifdef HIDEMYMALLOC
55497cff
PP
234# define malloc Mymalloc
235# define calloc Mycalloc
05effc97 236# define realloc Myremalloc
55497cff
PP
237# define free Myfree
238# endif
239# ifdef EMBEDMYMALLOC
240# define malloc Perl_malloc
241# define calloc Perl_calloc
242# define realloc Perl_realloc
243# define free Perl_free
4633a7c4 244# endif
55497cff
PP
245
246# undef safemalloc
247# undef safecalloc
248# undef saferealloc
249# undef safefree
250# define safemalloc malloc
251# define safecalloc calloc
4633a7c4 252# define saferealloc realloc
55497cff
PP
253# define safefree free
254
255#endif /* MYMALLOC */
4633a7c4 256
a0d0e21e
LW
257#define MEM_SIZE Size_t
258
ff68c719
PP
259#if defined(STANDARD_C) && defined(I_STDDEF)
260# include <stddef.h>
71be2cbc 261# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 262#else
71be2cbc 263# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719
PP
264#endif
265
a0d0e21e
LW
266#if defined(I_STRING) || defined(__cplusplus)
267# include <string.h>
268#else
269# include <strings.h>
270#endif
271
272#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
273#define strchr index
274#define strrchr rindex
275#endif
276
16d20bd9
AD
277#ifdef I_MEMORY
278# include <memory.h>
279#endif
280
fe14fcc3 281#ifdef HAS_MEMCPY
85e6fe83 282# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 283# ifndef memcpy
a0d0e21e 284 extern char * memcpy _((char*, char*, int));
ee0007ab
LW
285# endif
286# endif
287#else
288# ifndef memcpy
289# ifdef HAS_BCOPY
290# define memcpy(d,s,l) bcopy(s,d,l)
291# else
292# define memcpy(d,s,l) my_bcopy(s,d,l)
293# endif
294# endif
295#endif /* HAS_MEMCPY */
fe14fcc3 296
ee0007ab 297#ifdef HAS_MEMSET
85e6fe83 298# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 299# ifndef memset
a0d0e21e 300 extern char *memset _((char*, int, int));
ee0007ab
LW
301# endif
302# endif
303# define memzero(d,l) memset(d,0,l)
304#else
305# ifndef memzero
306# ifdef HAS_BZERO
307# define memzero(d,l) bzero(d,l)
308# else
309# define memzero(d,l) my_bzero(d,l)
310# endif
352d5a3a 311# endif
ee0007ab
LW
312#endif /* HAS_MEMSET */
313
85e6fe83 314#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 315# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW
316# define memmove(d,s,l) bcopy(s,d,l)
317# else
2304df62 318# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805
LW
319# define memmove(d,s,l) memcpy(d,s,l)
320# else
321# define memmove(d,s,l) my_bcopy(s,d,l)
322# endif
323# endif
d9d8d8de 324#endif
378cc40b 325
36477c24
PP
326#if defined(mips) && defined(ultrix) && !defined(__STDC__)
327# undef HAS_MEMCMP
328#endif
329
330#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
331# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
332# ifndef memcmp
333 extern int memcmp _((char*, char*, int));
334# endif
335# endif
336# ifdef BUGGY_MSC
337 # pragma function(memcmp)
338# endif
339#else
340# ifndef memcmp
341# define memcmp my_memcmp
342# endif
343#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
344
345#ifndef HAS_BCMP
346# ifndef bcmp
347# define bcmp(s1,s2,l) memcmp(s1,s2,l)
348# endif
349#endif /* !HAS_BCMP */
350
ae986130 351#ifdef I_NETINET_IN
79072805 352# include <netinet/in.h>
ae986130
LW
353#endif
354
1aef975c 355#ifdef I_SYS_STAT
8d063cd8 356#include <sys/stat.h>
1aef975c 357#endif
79072805 358
a0d0e21e
LW
359/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
360 like UTekV) are broken, sometimes giving false positives. Undefine
361 them here and let the code below set them to proper values.
362
363 The ghs macro stands for GreenHills Software C-1.8.5 which
364 is the C compiler for sysV88 and the various derivatives.
365 This header file bug is corrected in gcc-2.5.8 and later versions.
366 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
367
368#if defined(uts) || (defined(m88k) && defined(ghs))
79072805
LW
369# undef S_ISDIR
370# undef S_ISCHR
371# undef S_ISBLK
372# undef S_ISREG
373# undef S_ISFIFO
374# undef S_ISLNK
ee0007ab 375#endif
135863df 376
663a0e37
LW
377#ifdef I_TIME
378# include <time.h>
ffed7fef 379#endif
663a0e37 380
fe14fcc3 381#ifdef I_SYS_TIME
85e6fe83 382# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
383# define KERNEL
384# endif
385# include <sys/time.h>
85e6fe83 386# ifdef I_SYS_TIME_KERNEL
663a0e37
LW
387# undef KERNEL
388# endif
a687059c 389#endif
135863df 390
55497cff 391#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 392# include <sys/times.h>
d9d8d8de 393#endif
8d063cd8 394
fe14fcc3 395#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 396# undef HAS_STRERROR
663a0e37
LW
397#endif
398
a0d0e21e
LW
399#ifndef HAS_MKFIFO
400# ifndef mkfifo
401# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
402# endif
403#endif /* !HAS_MKFIFO */
404
663a0e37 405#include <errno.h>
ed6116ce 406#ifdef HAS_SOCKET
85e6fe83 407# ifdef I_NET_ERRNO
ed6116ce
LW
408# include <net/errno.h>
409# endif
410#endif
748a9306
LW
411#ifndef VMS
412# define FIXSTATUS(sts) (U_L((sts) & 0xffff))
413# define SHIFTSTATUS(sts) ((sts) >> 8)
414# define SETERRNO(errcode,vmserrcode) errno = (errcode)
415#else
416# define FIXSTATUS(sts) (U_L(sts))
417# define SHIFTSTATUS(sts) (sts)
728e2803 418# define SETERRNO(errcode,vmserrcode) STMT_START {set_errno(errcode); set_vaxc_errno(vmserrcode);} STMT_END
748a9306 419#endif
ed6116ce 420
55497cff 421#ifndef errno
79072805 422 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 423#endif
663a0e37 424
2304df62 425#ifdef HAS_STRERROR
a0d0e21e
LW
426# ifdef VMS
427 char *strerror _((int,...));
428# else
429 char *strerror _((int));
430# endif
2304df62
AD
431# ifndef Strerror
432# define Strerror strerror
433# endif
434#else
435# ifdef HAS_SYS_ERRLIST
79072805
LW
436 extern int sys_nerr;
437 extern char *sys_errlist[];
2304df62
AD
438# ifndef Strerror
439# define Strerror(e) \
79072805 440 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 441# endif
79072805 442# endif
35c8bce7 443#endif
663a0e37 444
2304df62 445#ifdef I_SYS_IOCTL
79072805
LW
446# ifndef _IOCTL_
447# include <sys/ioctl.h>
448# endif
a687059c
LW
449#endif
450
ee0007ab 451#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW
452# ifdef HAS_SOCKETPAIR
453# undef HAS_SOCKETPAIR
454# endif
2304df62
AD
455# ifdef I_NDBM
456# undef I_NDBM
79072805 457# endif
a687059c
LW
458#endif
459
a687059c 460#if INTSIZE == 2
79072805
LW
461# define htoni htons
462# define ntohi ntohs
a687059c 463#else
79072805
LW
464# define htoni htonl
465# define ntohi ntohl
a687059c
LW
466#endif
467
a0d0e21e 468/* Configure already sets Direntry_t */
35c8bce7 469#if defined(I_DIRENT)
663a0e37 470# include <dirent.h>
a0d0e21e
LW
471# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
472# include <sys/dir.h>
473# endif
ae986130 474#else
fe14fcc3 475# ifdef I_SYS_NDIR
79a0689e 476# include <sys/ndir.h>
663a0e37 477# else
fe14fcc3 478# ifdef I_SYS_DIR
79a0689e
LW
479# ifdef hp9000s500
480# include <ndir.h> /* may be wrong in the future */
481# else
482# include <sys/dir.h>
483# endif
663a0e37
LW
484# endif
485# endif
4633a7c4 486#endif
a687059c 487
352d5a3a
LW
488#ifdef FPUTS_BOTCH
489/* work around botch in SunOS 4.0.1 and 4.0.2 */
490# ifndef fputs
79072805 491# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW
492# endif
493#endif
494
c623bd54
LW
495/*
496 * The following gobbledygook brought to you on behalf of __STDC__.
497 * (I could just use #ifndef __STDC__, but this is more bulletproof
498 * in the face of half-implementations.)
499 */
500
501#ifndef S_IFMT
502# ifdef _S_IFMT
503# define S_IFMT _S_IFMT
504# else
505# define S_IFMT 0170000
506# endif
507#endif
508
509#ifndef S_ISDIR
510# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
511#endif
512
513#ifndef S_ISCHR
514# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
515#endif
516
517#ifndef S_ISBLK
fe14fcc3
LW
518# ifdef S_IFBLK
519# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
520# else
521# define S_ISBLK(m) (0)
522# endif
c623bd54
LW
523#endif
524
525#ifndef S_ISREG
526# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
527#endif
528
529#ifndef S_ISFIFO
fe14fcc3
LW
530# ifdef S_IFIFO
531# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
532# else
533# define S_ISFIFO(m) (0)
534# endif
c623bd54
LW
535#endif
536
537#ifndef S_ISLNK
538# ifdef _S_ISLNK
539# define S_ISLNK(m) _S_ISLNK(m)
540# else
541# ifdef _S_IFLNK
542# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
543# else
544# ifdef S_IFLNK
545# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
546# else
547# define S_ISLNK(m) (0)
548# endif
549# endif
550# endif
551#endif
552
553#ifndef S_ISSOCK
554# ifdef _S_ISSOCK
555# define S_ISSOCK(m) _S_ISSOCK(m)
556# else
557# ifdef _S_IFSOCK
558# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
559# else
560# ifdef S_IFSOCK
561# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
562# else
563# define S_ISSOCK(m) (0)
564# endif
565# endif
566# endif
567#endif
568
569#ifndef S_IRUSR
570# ifdef S_IREAD
571# define S_IRUSR S_IREAD
572# define S_IWUSR S_IWRITE
573# define S_IXUSR S_IEXEC
574# else
575# define S_IRUSR 0400
576# define S_IWUSR 0200
577# define S_IXUSR 0100
578# endif
579# define S_IRGRP (S_IRUSR>>3)
580# define S_IWGRP (S_IWUSR>>3)
581# define S_IXGRP (S_IXUSR>>3)
582# define S_IROTH (S_IRUSR>>6)
583# define S_IWOTH (S_IWUSR>>6)
584# define S_IXOTH (S_IXUSR>>6)
585#endif
586
587#ifndef S_ISUID
588# define S_ISUID 04000
589#endif
590
591#ifndef S_ISGID
592# define S_ISGID 02000
593#endif
594
79072805
LW
595#ifdef ff_next
596# undef ff_next
352d5a3a
LW
597#endif
598
a0d0e21e 599#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
600# define SLOPPYDIVIDE
601#endif
602
0c30d9ec 603#if defined(cray) || defined(convex) || BYTEORDER > 0xffff
ecfc5424 604# define HAS_QUAD
45d8adaa
LW
605#endif
606
748a9306
LW
607#ifdef UV
608#undef UV
609#endif
610
27d4fb96
PP
611/* XXX QUAD stuff is not currently supported on most systems.
612 Specifically, perl internals don't support long long. Among
613 the many problems is that some compilers support long long,
614 but the underlying library functions (such as sprintf) don't.
615 Some things do work (such as quad pack/unpack on convex);
616 also some systems use long long for the fpos_t typedef. That
617 seems to work too.
618
619 The IV type is supposed to be long enough to hold any integral
620 value or a pointer.
621 --Andy Dougherty August 1996
622*/
623
ecfc5424 624#ifdef HAS_QUAD
45d8adaa 625# ifdef cray
ecfc5424 626# define Quad_t int
45d8adaa 627# else
0c30d9ec 628# if defined(convex)
ecfc5424 629# define Quad_t long long
45d8adaa 630# else
ecfc5424 631# define Quad_t long
45d8adaa
LW
632# endif
633# endif
748a9306
LW
634 typedef Quad_t IV;
635 typedef unsigned Quad_t UV;
27d4fb96
PP
636# define IV_MAX PERL_QUAD_MAX
637# define IV_MIN PERL_QUAD_MIN
638# define UV_MAX PERL_UQUAD_MAX
639# define UV_MIN PERL_UQUAD_MIN
79072805 640#else
748a9306
LW
641 typedef long IV;
642 typedef unsigned long UV;
27d4fb96
PP
643# define IV_MAX PERL_LONG_MAX
644# define IV_MIN PERL_LONG_MIN
645# define UV_MAX PERL_ULONG_MAX
646# define UV_MIN PERL_ULONG_MIN
79072805
LW
647#endif
648
760ac839
LW
649/* Previously these definitions used hardcoded figures.
650 * It is hoped these formula are more portable, although
651 * no data one way or another is presently known to me.
652 * The "PERL_" names are used because these calculated constants
653 * do not meet the ANSI requirements for LONG_MAX, etc., which
654 * need to be constants acceptable to #if - kja
655 * define PERL_LONG_MAX 2147483647L
656 * define PERL_LONG_MIN (-LONG_MAX - 1)
657 * define PERL ULONG_MAX 4294967295L
658 */
659
660#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
661# include <limits.h>
662#else
663#ifdef I_VALUES
664# include <values.h>
665#endif
666#endif
667
99abf803
PP
668/*
669 * Try to figure out max and min values for the integral types. THE CORRECT
670 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
671 * following hacks are used if neither limits.h or values.h provide them:
672 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
673 * for types < int: (unsigned TYPE)~(unsigned)0
674 * The argument to ~ must be unsigned so that later signed->unsigned
675 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
676 * and it must not be smaller than int because ~ does integral promotion.
677 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
678 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
679 * The latter is a hack which happens to work on some machines but
680 * does *not* catch any random system, or things like integer types
681 * with NaN if that is possible.
682 *
683 * All of the types are explicitly cast to prevent accidental loss of
684 * numeric range, and in the hope that they will be less likely to confuse
685 * over-eager optimizers.
686 *
687 */
27d4fb96 688
99abf803
PP
689#define PERL_UCHAR_MIN ((unsigned char)0)
690
691#ifdef UCHAR_MAX
692# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 693#else
99abf803
PP
694# ifdef MAXUCHAR
695# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 696# else
99abf803 697# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
698# endif
699#endif
99abf803
PP
700
701/*
702 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
703 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
704 * depending on local options. Until Configure detects this (or at least
705 * detects whether the "signed" keyword is available) the CHAR ranges
706 * will not be included. UCHAR functions normally.
707 * - kja
708 */
27d4fb96 709
99abf803
PP
710#define PERL_USHORT_MIN ((unsigned short)0)
711
712#ifdef USHORT_MAX
713# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 714#else
99abf803
PP
715# ifdef MAXUSHORT
716# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 717# else
99abf803 718# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96
PP
719# endif
720#endif
721
27d4fb96 722#ifdef SHORT_MAX
99abf803 723# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
724#else
725# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 726# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 727# else
99abf803 728# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96
PP
729# endif
730#endif
731
732#ifdef SHORT_MIN
99abf803 733# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
734#else
735# ifdef MINSHORT
99abf803 736# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96
PP
737# else
738# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
739# endif
740#endif
741
99abf803
PP
742#ifdef UINT_MAX
743# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 744#else
99abf803
PP
745# ifdef MAXUINT
746# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 747# else
99abf803 748# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
749# endif
750#endif
751
99abf803 752#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
753
754#ifdef INT_MAX
99abf803 755# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
756#else
757# ifdef MAXINT /* Often used in <values.h> */
99abf803 758# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 759# else
99abf803 760# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
761# endif
762#endif
763
764#ifdef INT_MIN
99abf803 765# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
766#else
767# ifdef MININT
99abf803 768# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
769# else
770# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
771# endif
772#endif
773
99abf803
PP
774#ifdef ULONG_MAX
775# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 776#else
99abf803
PP
777# ifdef MAXULONG
778# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 779# else
99abf803 780# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
781# endif
782#endif
783
99abf803 784#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 785
760ac839 786#ifdef LONG_MAX
99abf803 787# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
788#else
789# ifdef MAXLONG /* Often used in <values.h> */
99abf803 790# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 791# else
99abf803 792# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
793# endif
794#endif
795
796#ifdef LONG_MIN
99abf803 797# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW
798#else
799# ifdef MINLONG
99abf803 800# define PERL_LONG_MIN ((long)MINLONG)
760ac839 801# else
27d4fb96 802# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW
803# endif
804#endif
805
99abf803
PP
806#ifdef HAS_QUAD
807
808# ifdef UQUAD_MAX
809# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 810# else
99abf803 811# define PERL_UQUAD_MAX (~(UV)0)
760ac839 812# endif
760ac839 813
99abf803 814# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 815
27d4fb96 816# ifdef QUAD_MAX
99abf803 817# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 818# else
99abf803 819# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96
PP
820# endif
821
822# ifdef QUAD_MIN
99abf803 823# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 824# else
a6e633de 825# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96
PP
826# endif
827
760ac839
LW
828#endif
829
ee0007ab 830typedef MEM_SIZE STRLEN;
450a55e4 831
79072805
LW
832typedef struct op OP;
833typedef struct cop COP;
834typedef struct unop UNOP;
835typedef struct binop BINOP;
836typedef struct listop LISTOP;
837typedef struct logop LOGOP;
838typedef struct condop CONDOP;
839typedef struct pmop PMOP;
840typedef struct svop SVOP;
841typedef struct gvop GVOP;
842typedef struct pvop PVOP;
79072805
LW
843typedef struct loop LOOP;
844
845typedef struct Outrec Outrec;
93a17b20 846typedef struct interpreter PerlInterpreter;
79072805 847typedef struct ff FF;
79072805
LW
848typedef struct sv SV;
849typedef struct av AV;
850typedef struct hv HV;
851typedef struct cv CV;
378cc40b 852typedef struct regexp REGEXP;
79072805 853typedef struct gp GP;
0c30d9ec 854typedef struct gv GV;
8990e307 855typedef struct io IO;
79072805
LW
856typedef struct context CONTEXT;
857typedef struct block BLOCK;
858
859typedef struct magic MAGIC;
ed6116ce 860typedef struct xrv XRV;
79072805
LW
861typedef struct xpv XPV;
862typedef struct xpviv XPVIV;
ff68c719 863typedef struct xpvuv XPVUV;
79072805
LW
864typedef struct xpvnv XPVNV;
865typedef struct xpvmg XPVMG;
866typedef struct xpvlv XPVLV;
867typedef struct xpvav XPVAV;
868typedef struct xpvhv XPVHV;
869typedef struct xpvgv XPVGV;
870typedef struct xpvcv XPVCV;
871typedef struct xpvbm XPVBM;
872typedef struct xpvfm XPVFM;
8990e307 873typedef struct xpvio XPVIO;
79072805
LW
874typedef struct mgvtbl MGVTBL;
875typedef union any ANY;
8d063cd8 876
378cc40b 877#include "handy.h"
a0d0e21e 878
16d20bd9
AD
879typedef I32 (*filter_t) _((int, SV *, int));
880#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
881#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
882#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
883
748a9306 884#ifdef DOSISH
4633a7c4
LW
885# if defined(OS2)
886# include "os2ish.h"
887# else
748a9306 888# include "dosish.h"
4633a7c4 889# endif
a0d0e21e 890#else
748a9306
LW
891# if defined(VMS)
892# include "vmsish.h"
893# else
0c30d9ec
PP
894# if defined(PLAN9)
895# include "./plan9/plan9ish.h"
896# else
897# include "unixish.h"
898# endif
748a9306
LW
899# endif
900#endif
3fc1aec6
PP
901
902/* Some unistd.h's give a prototype for pause() even though
903 HAS_PAUSE ends up undefined. This causes the #define
904 below to be rejected by the compmiler. Sigh.
905*/
906#ifdef HAS_PAUSE
907#define Pause pause
908#else
909#define Pause() sleep((32767<<16)+32767)
748a9306
LW
910#endif
911
912#ifndef IOCPARM_LEN
913# ifdef IOCPARM_MASK
914 /* on BSDish systes we're safe */
915# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
916# else
917 /* otherwise guess at what's safe */
918# define IOCPARM_LEN(x) 256
919# endif
a0d0e21e
LW
920#endif
921
79072805
LW
922union any {
923 void* any_ptr;
924 I32 any_i32;
a0d0e21e 925 IV any_iv;
85e6fe83 926 long any_long;
a0d0e21e 927 void (*any_dptr) _((void*));
79072805
LW
928};
929
378cc40b 930#include "regexp.h"
79072805 931#include "sv.h"
378cc40b 932#include "util.h"
8d063cd8 933#include "form.h"
79072805
LW
934#include "gv.h"
935#include "cv.h"
936#include "opcode.h"
937#include "op.h"
938#include "cop.h"
939#include "av.h"
940#include "hv.h"
941#include "mg.h"
942#include "scope.h"
8d063cd8 943
4633a7c4
LW
944/* work around some libPW problems */
945#ifdef DOINIT
946EXT char Error[1];
947#endif
948
450a55e4 949#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW
950# define I286
951#endif
952
fe14fcc3
LW
953#if defined(htonl) && !defined(HAS_HTONL)
954#define HAS_HTONL
ae986130 955#endif
fe14fcc3
LW
956#if defined(htons) && !defined(HAS_HTONS)
957#define HAS_HTONS
ae986130 958#endif
fe14fcc3
LW
959#if defined(ntohl) && !defined(HAS_NTOHL)
960#define HAS_NTOHL
ae986130 961#endif
fe14fcc3
LW
962#if defined(ntohs) && !defined(HAS_NTOHS)
963#define HAS_NTOHS
ae986130 964#endif
fe14fcc3 965#ifndef HAS_HTONL
d9d8d8de 966#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW
967#define HAS_HTONS
968#define HAS_HTONL
969#define HAS_NTOHS
970#define HAS_NTOHL
a687059c
LW
971#define MYSWAP
972#define htons my_swap
973#define htonl my_htonl
974#define ntohs my_swap
975#define ntohl my_ntohl
976#endif
977#else
d9d8d8de 978#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW
979#undef HAS_HTONS
980#undef HAS_HTONL
981#undef HAS_NTOHS
982#undef HAS_NTOHL
a687059c
LW
983#endif
984#endif
985
988174c1
LW
986/*
987 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
988 * -DWS
989 */
990#if BYTEORDER != 0x1234
991# define HAS_VTOHL
992# define HAS_VTOHS
993# define HAS_HTOVL
994# define HAS_HTOVS
995# if BYTEORDER == 0x4321
996# define vtohl(x) ((((x)&0xFF)<<24) \
997 +(((x)>>24)&0xFF) \
998 +(((x)&0x0000FF00)<<8) \
999 +(((x)&0x00FF0000)>>8) )
1000# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1001# define htovl(x) vtohl(x)
1002# define htovs(x) vtohs(x)
1003# endif
1004 /* otherwise default to functions in util.c */
1005#endif
1006
0f85fab0 1007#ifdef CASTNEGFLOAT
79072805 1008#define U_S(what) ((U16)(what))
0f85fab0 1009#define U_I(what) ((unsigned int)(what))
79072805 1010#define U_L(what) ((U32)(what))
0f85fab0 1011#else
a6e633de
PP
1012# ifdef __cplusplus
1013 extern "C" {
1014# endif
a0d0e21e 1015U32 cast_ulong _((double));
a6e633de
PP
1016# ifdef __cplusplus
1017 }
1018# endif
232e078e
AD
1019#define U_S(what) ((U16)cast_ulong((double)(what)))
1020#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1021#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW
1022#endif
1023
ed6116ce
LW
1024#ifdef CASTI32
1025#define I_32(what) ((I32)(what))
a0d0e21e 1026#define I_V(what) ((IV)(what))
5d94fbed 1027#define U_V(what) ((UV)(what))
ed6116ce 1028#else
a6e633de
PP
1029# ifdef __cplusplus
1030 extern "C" {
1031# endif
a0d0e21e 1032I32 cast_i32 _((double));
a0d0e21e 1033IV cast_iv _((double));
5d94fbed 1034UV cast_uv _((double));
a6e633de
PP
1035# ifdef __cplusplus
1036 }
1037# endif
1038#define I_32(what) (cast_i32((double)(what)))
1039#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1040#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW
1041#endif
1042
79072805
LW
1043struct Outrec {
1044 I32 o_lines;
d9d8d8de 1045 char *o_str;
79072805 1046 U32 o_len;
8d063cd8
LW
1047};
1048
352d5a3a
LW
1049#ifndef MAXSYSFD
1050# define MAXSYSFD 2
1051#endif
ee0007ab 1052
f82b3d41
PP
1053#ifndef TMPPATH
1054# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1055#endif
79072805
LW
1056
1057#ifndef __cplusplus
a0d0e21e
LW
1058Uid_t getuid _((void));
1059Uid_t geteuid _((void));
1060Gid_t getgid _((void));
1061Gid_t getegid _((void));
79072805 1062#endif
8d063cd8
LW
1063
1064#ifdef DEBUGGING
0c30d9ec 1065#ifndef Perl_debug_log
760ac839 1066#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1067#endif
d96024cf 1068#define YYDEBUG 1
79072805
LW
1069#define DEB(a) a
1070#define DEBUG(a) if (debug) a
1071#define DEBUG_p(a) if (debug & 1) a
1072#define DEBUG_s(a) if (debug & 2) a
1073#define DEBUG_l(a) if (debug & 4) a
1074#define DEBUG_t(a) if (debug & 8) a
1075#define DEBUG_o(a) if (debug & 16) a
1076#define DEBUG_c(a) if (debug & 32) a
1077#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1078#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805
LW
1079#define DEBUG_f(a) if (debug & 256) a
1080#define DEBUG_r(a) if (debug & 512) a
1081#define DEBUG_x(a) if (debug & 1024) a
1082#define DEBUG_u(a) if (debug & 2048) a
1083#define DEBUG_L(a) if (debug & 4096) a
1084#define DEBUG_H(a) if (debug & 8192) a
1085#define DEBUG_X(a) if (debug & 16384) a
8990e307 1086#define DEBUG_D(a) if (debug & 32768) a
79072805
LW
1087#else
1088#define DEB(a)
1089#define DEBUG(a)
1090#define DEBUG_p(a)
1091#define DEBUG_s(a)
1092#define DEBUG_l(a)
1093#define DEBUG_t(a)
1094#define DEBUG_o(a)
1095#define DEBUG_c(a)
1096#define DEBUG_P(a)
1097#define DEBUG_m(a)
1098#define DEBUG_f(a)
1099#define DEBUG_r(a)
1100#define DEBUG_x(a)
1101#define DEBUG_u(a)
1102#define DEBUG_L(a)
1103#define DEBUG_H(a)
1104#define DEBUG_X(a)
8990e307 1105#define DEBUG_D(a)
8d063cd8 1106#endif
fe14fcc3 1107#define YYMAXDEPTH 300
8d063cd8 1108
a6e633de 1109#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW
1110#define assert(what) DEB( { \
1111 if (!(what)) { \
463ee0b2 1112 croak("Assertion failed: file \"%s\", line %d", \
79072805
LW
1113 __FILE__, __LINE__); \
1114 exit(1); \
1115 }})
a6e633de 1116#endif
8d063cd8 1117
450a55e4 1118struct ufuncs {
a0d0e21e
LW
1119 I32 (*uf_val)_((IV, SV*));
1120 I32 (*uf_set)_((IV, SV*));
1121 IV uf_index;
450a55e4
LW
1122};
1123
fe14fcc3 1124/* Fix these up for __STDC__ */
a0d0e21e
LW
1125#ifndef __cplusplus
1126char *mktemp _((char*));
1127double atof _((const char*));
1128#endif
79072805 1129
352d5a3a 1130#ifndef STANDARD_C
fe14fcc3 1131/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1132Time_t time();
8d063cd8 1133struct tm *gmtime(), *localtime();
93a17b20 1134char *strchr(), *strrchr();
378cc40b 1135char *strcpy(), *strcat();
352d5a3a 1136#endif /* ! STANDARD_C */
8d063cd8 1137
79072805
LW
1138
1139#ifdef I_MATH
1140# include <math.h>
1141#else
1142# ifdef __cplusplus
1143 extern "C" {
1144# endif
a0d0e21e 1145 double exp _((double));
a0d0e21e
LW
1146 double log _((double));
1147 double sqrt _((double));
1148 double modf _((double,double*));
1149 double sin _((double));
1150 double cos _((double));
1151 double atan2 _((double,double));
1152 double pow _((double,double));
79072805
LW
1153# ifdef __cplusplus
1154 };
1155# endif
1156#endif
1157
a0d0e21e 1158#ifndef __cplusplus
3fc1aec6
PP
1159#ifdef __NeXT__ /* or whatever catches all NeXTs */
1160char *crypt (); /* Maybe more hosts will need the unprototyped version */
1161#else
a0d0e21e 1162char *crypt _((const char*, const char*));
3fc1aec6 1163#endif
a0d0e21e
LW
1164char *getenv _((const char*));
1165Off_t lseek _((int,Off_t,int));
1166char *getlogin _((void));
1167#endif
79072805 1168
16d20bd9 1169#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1170#define UNLINK unlnk
a0d0e21e 1171I32 unlnk _((char*));
8d063cd8
LW
1172#else
1173#define UNLINK unlink
1174#endif
a687059c 1175
fe14fcc3 1176#ifndef HAS_SETREUID
85e6fe83
LW
1177# ifdef HAS_SETRESUID
1178# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1179# define HAS_SETREUID
1180# endif
a687059c 1181#endif
fe14fcc3 1182#ifndef HAS_SETREGID
85e6fe83
LW
1183# ifdef HAS_SETRESGID
1184# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1185# define HAS_SETREGID
1186# endif
a687059c 1187#endif
ee0007ab 1188
ff68c719
PP
1189typedef Signal_t (*Sighandler_t) _((int));
1190
1191#ifdef HAS_SIGACTION
1192typedef struct sigaction Sigsave_t;
1193#else
1194typedef Sighandler_t Sigsave_t;
1195#endif
1196
ee0007ab
LW
1197#define SCAN_DEF 0
1198#define SCAN_TR 1
1199#define SCAN_REPL 2
79072805
LW
1200
1201#ifdef DEBUGGING
4633a7c4 1202# ifndef register
a0d0e21e
LW
1203# define register
1204# endif
55497cff
PP
1205# ifdef MYMALLOC
1206# ifndef DEBUGGING_MSTATS
1207# define DEBUGGING_MSTATS
1208# endif
1209# endif
a0d0e21e 1210# define PAD_SV(po) pad_sv(po)
79072805 1211#else
a0d0e21e 1212# define PAD_SV(po) curpad[po]
79072805
LW
1213#endif
1214
1215/****************/
1216/* Truly global */
1217/****************/
1218
1219/* global state */
a0d0e21e 1220EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec
PP
1221/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1222#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
79072805 1223extern char ** environ; /* environment variables supplied via exec */
0c30d9ec
PP
1224#else
1225# if defined(NeXT) && defined(__DYNAMIC__)
1226
1227# include <mach-o/dyld.h>
1228EXT char *** environ_pointer;
1229# define environ (*environ_pointer)
1230# endif
1231#endif /* environ processing */
1232
79072805
LW
1233EXT int uid; /* current real user id */
1234EXT int euid; /* current effective user id */
1235EXT int gid; /* current real group id */
1236EXT int egid; /* current effective group id */
1237EXT bool nomemok; /* let malloc context handle nomem */
1238EXT U32 an; /* malloc sequence number */
463ee0b2 1239EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1240EXT U16 op_seqmax; /* op sequence number */
8990e307 1241EXT U32 evalseq; /* eval sequence number */
463ee0b2 1242EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805
LW
1243EXT char ** origenviron;
1244EXT U32 origalen;
44a8e56a 1245EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1246EXT U32 * profiledata;
84ea024a 1247EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1248EXT char * osname; /* operating system */
ff68c719 1249EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1250
a0d0e21e
LW
1251EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1252EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW
1253EXT double * xnv_root; /* free xnv list--shared by interpreters */
1254EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1255EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1256EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd
PP
1257EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1258EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1259
79072805
LW
1260/* Stack for currently executing thread--context switch must handle this. */
1261EXT SV ** stack_base; /* stack->array_ary */
1262EXT SV ** stack_sp; /* stack pointer now */
1263EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1264
1265/* likewise for these */
1266
1267EXT OP * op; /* current op--oughta be in a global register */
1268
1269EXT I32 * scopestack; /* blocks we've entered */
1270EXT I32 scopestack_ix;
1271EXT I32 scopestack_max;
1272
1273EXT ANY* savestack; /* to save non-local values on */
1274EXT I32 savestack_ix;
1275EXT I32 savestack_max;
1276
1277EXT OP ** retstack; /* returns we've pushed */
1278EXT I32 retstack_ix;
1279EXT I32 retstack_max;
1280
1281EXT I32 * markstack; /* stackmarks we're remembering */
1282EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1283EXT I32 * markstack_max; /* stackmarks we're remembering */
1284
1285EXT SV ** curpad;
1286
1287/* temp space */
1288EXT SV * Sv;
1289EXT XPV * Xpv;
f82b3d41 1290EXT char buf[2048]; /* should be longer than PATH_MAX */
79072805
LW
1291EXT char tokenbuf[256];
1292EXT struct stat statbuf;
ecfc5424 1293#ifdef HAS_TIMES
79072805
LW
1294EXT struct tms timesbuf;
1295#endif
463ee0b2 1296EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW
1297
1298/* for tmp use in stupid debuggers */
1299EXT int * di;
1300EXT short * ds;
1301EXT char * dc;
1302
1303/* handy constants */
71be2cbc
PP
1304EXTCONST char * Yes INIT("1");
1305EXTCONST char * No INIT("");
1306EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1307EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1308EXTCONST char * vert INIT("|");
79072805 1309
71be2cbc 1310EXTCONST char warn_uninit[]
a0d0e21e 1311 INIT("Use of uninitialized value");
71be2cbc 1312EXTCONST char warn_nosemi[]
463ee0b2 1313 INIT("Semicolon seems to be missing");
71be2cbc 1314EXTCONST char warn_reserved[]
463ee0b2 1315 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1316EXTCONST char warn_nl[]
93a17b20 1317 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1318EXTCONST char no_wrongref[]
a0d0e21e 1319 INIT("Can't use %s ref as %s ref");
71be2cbc 1320EXTCONST char no_symref[]
748a9306 1321 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1322EXTCONST char no_usym[]
8990e307 1323 INIT("Can't use an undefined value as %s reference");
71be2cbc 1324EXTCONST char no_aelem[]
93a17b20 1325 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1326EXTCONST char no_helem[]
93a17b20 1327 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1328EXTCONST char no_modify[]
93a17b20 1329 INIT("Modification of a read-only value attempted");
71be2cbc 1330EXTCONST char no_mem[]
93a17b20 1331 INIT("Out of memory!\n");
71be2cbc 1332EXTCONST char no_security[]
463ee0b2 1333 INIT("Insecure dependency in %s%s");
71be2cbc 1334EXTCONST char no_sock_func[]
93a17b20 1335 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1336EXTCONST char no_dir_func[]
93a17b20 1337 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1338EXTCONST char no_func[]
93a17b20 1339 INIT("The %s function is unimplemented");
71be2cbc 1340EXTCONST char no_myglob[]
748a9306 1341 INIT("\"my\" variable %s can't be in a package");
93a17b20 1342
79072805
LW
1343EXT SV sv_undef;
1344EXT SV sv_no;
1345EXT SV sv_yes;
1346#ifdef CSH
1347 EXT char * cshname INIT(CSH);
1348 EXT I32 cshlen;
1349#endif
1350
1351#ifdef DOINIT
8e07c86e
AD
1352EXT char *sig_name[] = { SIG_NAME };
1353EXT int sig_num[] = { SIG_NUM };
0c30d9ec
PP
1354EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1355EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW
1356#else
1357EXT char *sig_name[];
8e07c86e 1358EXT int sig_num[];
0c30d9ec
PP
1359EXT SV * psig_ptr[];
1360EXT SV * psig_name[];
79072805
LW
1361#endif
1362
bbce6d69
PP
1363/* fast case folding tables */
1364
79072805 1365#ifdef DOINIT
36477c24 1366EXTCONST unsigned char fold[] = {
79072805
LW
1367 0, 1, 2, 3, 4, 5, 6, 7,
1368 8, 9, 10, 11, 12, 13, 14, 15,
1369 16, 17, 18, 19, 20, 21, 22, 23,
1370 24, 25, 26, 27, 28, 29, 30, 31,
1371 32, 33, 34, 35, 36, 37, 38, 39,
1372 40, 41, 42, 43, 44, 45, 46, 47,
1373 48, 49, 50, 51, 52, 53, 54, 55,
1374 56, 57, 58, 59, 60, 61, 62, 63,
1375 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1376 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1377 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1378 'x', 'y', 'z', 91, 92, 93, 94, 95,
1379 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1380 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1381 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1382 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1383 128, 129, 130, 131, 132, 133, 134, 135,
1384 136, 137, 138, 139, 140, 141, 142, 143,
1385 144, 145, 146, 147, 148, 149, 150, 151,
1386 152, 153, 154, 155, 156, 157, 158, 159,
1387 160, 161, 162, 163, 164, 165, 166, 167,
1388 168, 169, 170, 171, 172, 173, 174, 175,
1389 176, 177, 178, 179, 180, 181, 182, 183,
1390 184, 185, 186, 187, 188, 189, 190, 191,
1391 192, 193, 194, 195, 196, 197, 198, 199,
1392 200, 201, 202, 203, 204, 205, 206, 207,
1393 208, 209, 210, 211, 212, 213, 214, 215,
1394 216, 217, 218, 219, 220, 221, 222, 223,
1395 224, 225, 226, 227, 228, 229, 230, 231,
1396 232, 233, 234, 235, 236, 237, 238, 239,
1397 240, 241, 242, 243, 244, 245, 246, 247,
1398 248, 249, 250, 251, 252, 253, 254, 255
1399};
1400#else
71be2cbc 1401EXTCONST unsigned char fold[];
79072805
LW
1402#endif
1403
1404#ifdef DOINIT
bbce6d69
PP
1405EXT unsigned char fold_locale[] = {
1406 0, 1, 2, 3, 4, 5, 6, 7,
1407 8, 9, 10, 11, 12, 13, 14, 15,
1408 16, 17, 18, 19, 20, 21, 22, 23,
1409 24, 25, 26, 27, 28, 29, 30, 31,
1410 32, 33, 34, 35, 36, 37, 38, 39,
1411 40, 41, 42, 43, 44, 45, 46, 47,
1412 48, 49, 50, 51, 52, 53, 54, 55,
1413 56, 57, 58, 59, 60, 61, 62, 63,
1414 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1415 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1416 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1417 'x', 'y', 'z', 91, 92, 93, 94, 95,
1418 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1419 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1420 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1421 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1422 128, 129, 130, 131, 132, 133, 134, 135,
1423 136, 137, 138, 139, 140, 141, 142, 143,
1424 144, 145, 146, 147, 148, 149, 150, 151,
1425 152, 153, 154, 155, 156, 157, 158, 159,
1426 160, 161, 162, 163, 164, 165, 166, 167,
1427 168, 169, 170, 171, 172, 173, 174, 175,
1428 176, 177, 178, 179, 180, 181, 182, 183,
1429 184, 185, 186, 187, 188, 189, 190, 191,
1430 192, 193, 194, 195, 196, 197, 198, 199,
1431 200, 201, 202, 203, 204, 205, 206, 207,
1432 208, 209, 210, 211, 212, 213, 214, 215,
1433 216, 217, 218, 219, 220, 221, 222, 223,
1434 224, 225, 226, 227, 228, 229, 230, 231,
1435 232, 233, 234, 235, 236, 237, 238, 239,
1436 240, 241, 242, 243, 244, 245, 246, 247,
1437 248, 249, 250, 251, 252, 253, 254, 255
1438};
1439#else
1440EXT unsigned char fold_locale[];
1441#endif
1442
1443#ifdef DOINIT
71be2cbc 1444EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1445 1, 2, 84, 151, 154, 155, 156, 157,
1446 165, 246, 250, 3, 158, 7, 18, 29,
1447 40, 51, 62, 73, 85, 96, 107, 118,
1448 129, 140, 147, 148, 149, 150, 152, 153,
1449 255, 182, 224, 205, 174, 176, 180, 217,
1450 233, 232, 236, 187, 235, 228, 234, 226,
1451 222, 219, 211, 195, 188, 193, 185, 184,
1452 191, 183, 201, 229, 181, 220, 194, 162,
1453 163, 208, 186, 202, 200, 218, 198, 179,
1454 178, 214, 166, 170, 207, 199, 209, 206,
1455 204, 160, 212, 216, 215, 192, 175, 173,
1456 243, 172, 161, 190, 203, 189, 164, 230,
1457 167, 248, 227, 244, 242, 255, 241, 231,
1458 240, 253, 169, 210, 245, 237, 249, 247,
1459 239, 168, 252, 251, 254, 238, 223, 221,
1460 213, 225, 177, 197, 171, 196, 159, 4,
1461 5, 6, 8, 9, 10, 11, 12, 13,
1462 14, 15, 16, 17, 19, 20, 21, 22,
1463 23, 24, 25, 26, 27, 28, 30, 31,
1464 32, 33, 34, 35, 36, 37, 38, 39,
1465 41, 42, 43, 44, 45, 46, 47, 48,
1466 49, 50, 52, 53, 54, 55, 56, 57,
1467 58, 59, 60, 61, 63, 64, 65, 66,
1468 67, 68, 69, 70, 71, 72, 74, 75,
1469 76, 77, 78, 79, 80, 81, 82, 83,
1470 86, 87, 88, 89, 90, 91, 92, 93,
1471 94, 95, 97, 98, 99, 100, 101, 102,
1472 103, 104, 105, 106, 108, 109, 110, 111,
1473 112, 113, 114, 115, 116, 117, 119, 120,
1474 121, 122, 123, 124, 125, 126, 127, 128,
1475 130, 131, 132, 133, 134, 135, 136, 137,
1476 138, 139, 141, 142, 143, 144, 145, 146
1477};
1478#else
71be2cbc 1479EXTCONST unsigned char freq[];
79072805
LW
1480#endif
1481
8990e307
LW
1482#ifdef DEBUGGING
1483#ifdef DOINIT
71be2cbc 1484EXTCONST char* block_type[] = {
8990e307
LW
1485 "NULL",
1486 "SUB",
1487 "EVAL",
1488 "LOOP",
1489 "SUBST",
1490 "BLOCK",
1491};
1492#else
71be2cbc 1493EXTCONST char* block_type[];
8990e307
LW
1494#endif
1495#endif
1496
79072805
LW
1497/*****************************************************************************/
1498/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1499/*****************************************************************************/
8990e307 1500/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1501
a0d0e21e
LW
1502#include "perly.h"
1503
79072805
LW
1504typedef enum {
1505 XOPERATOR,
1506 XTERM,
79072805 1507 XREF,
8990e307 1508 XSTATE,
a0d0e21e
LW
1509 XBLOCK,
1510 XTERMBLOCK
79072805
LW
1511} expectation;
1512
a0d0e21e
LW
1513EXT U32 lex_state; /* next token is determined */
1514EXT U32 lex_defer; /* state after determined token */
1515EXT expectation lex_expect; /* expect after determined token */
1516EXT I32 lex_brackets; /* bracket count */
1517EXT I32 lex_formbrack; /* bracket count at outer format level */
1518EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1519EXT I32 lex_casemods; /* casemod count */
1520EXT I32 lex_dojoin; /* doing an array interpolation */
1521EXT I32 lex_starts; /* how many interps done on level */
1522EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1523EXT SV * lex_repl; /* runtime replacement from s/// */
1524EXT OP * lex_op; /* extra info to pass back on op */
1525EXT OP * lex_inpat; /* in pattern $) and $| are special */
1526EXT I32 lex_inwhat; /* what kind of quoting are we in */
1527EXT char * lex_brackstack; /* what kind of brackets to pop */
1528EXT char * lex_casestack; /* what kind of case mods in effect */
1529
1530/* What we know when we're in LEX_KNOWNEXT state. */
1531EXT YYSTYPE nextval[5]; /* value of next token, if any */
1532EXT I32 nexttype[5]; /* type of next token */
1533EXT I32 nexttoke;
1534
760ac839 1535EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1536EXT SV * linestr;
1537EXT char * bufptr;
1538EXT char * oldbufptr;
1539EXT char * oldoldbufptr;
1540EXT char * bufend;
8990e307 1541EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1542EXT AV * rsfp_filters;
79072805
LW
1543
1544EXT I32 multi_start; /* 1st line of multi-line string */
1545EXT I32 multi_end; /* last line of multi-line string */
1546EXT I32 multi_open; /* delimiter of said string */
1547EXT I32 multi_close; /* delimiter of said string */
1548
1549EXT GV * scrgv;
1550EXT I32 error_count; /* how many errors so far, max 10 */
1551EXT I32 subline; /* line this subroutine began on */
1552EXT SV * subname; /* name of current subroutine */
1553
748a9306 1554EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1555EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1556EXT AV * comppad_name; /* variable names for "my" variables */
1557EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1558EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1559EXT I32 min_intro_pending;/* start of vars to introduce */
1560EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1561EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1562EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1563EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW
1564EXT COP compiling;
1565
79072805
LW
1566EXT I32 thisexpr; /* name id for nothing_in_common() */
1567EXT char * last_uni; /* position of last named-unary operator */
1568EXT char * last_lop; /* position of last list operator */
8990e307 1569EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1570EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW
1571#ifdef FCRYPT
1572EXT I32 cryptseen; /* has fast crypt() been initialized? */
1573#endif
1574
85e6fe83
LW
1575EXT U32 hints; /* various compilation flags */
1576
1577 /* Note: the lowest 8 bits are reserved for
1578 stuffing into op->op_private */
1579#define HINT_INTEGER 0x00000001
1580#define HINT_STRICT_REFS 0x00000002
1581
1582#define HINT_BLOCK_SCOPE 0x00000100
1583#define HINT_STRICT_SUBS 0x00000200
1584#define HINT_STRICT_VARS 0x00000400
bbce6d69 1585#define HINT_LOCALE 0x00000800
85e6fe83 1586
79072805
LW
1587/**************************************************************************/
1588/* This regexp stuff is global since it always happens within 1 expr eval */
1589/**************************************************************************/
1590
1591EXT char * regprecomp; /* uncompiled string. */
1592EXT char * regparse; /* Input-scan pointer. */
1593EXT char * regxend; /* End of input for compile */
1594EXT I32 regnpar; /* () count. */
1595EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1596EXT I32 regsize; /* Code size. */
a0d0e21e 1597EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW
1598EXT I32 regsawback; /* Did we see \1, ...? */
1599
1600EXT char * reginput; /* String-input pointer. */
79072805
LW
1601EXT char * regbol; /* Beginning of input, for ^ check. */
1602EXT char * regeol; /* End of input, for $ check. */
1603EXT char ** regstartp; /* Pointer to startp array. */
1604EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1605EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1606EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW
1607EXT U16 regflags; /* are we folding, multilining? */
1608EXT char regprev; /* char before regbol, \n if none */
79072805 1609
760ac839
LW
1610EXT bool do_undump; /* -u or dump seen? */
1611EXT VOL U32 debug;
1612
79072805
LW
1613/***********************************************/
1614/* Global only to current interpreter instance */
1615/***********************************************/
1616
8990e307 1617#ifdef MULTIPLICITY
79072805
LW
1618#define IEXT
1619#define IINIT(x)
1620struct interpreter {
1621#else
1622#define IEXT EXT
1623#define IINIT(x) INIT(x)
1624#endif
1625
1626/* pseudo environmental stuff */
1627IEXT int Iorigargc;
1628IEXT char ** Iorigargv;
1629IEXT GV * Ienvgv;
1630IEXT GV * Isiggv;
1631IEXT GV * Iincgv;
1632IEXT char * Iorigfilename;
748a9306
LW
1633IEXT SV * Idiehook;
1634IEXT SV * Iwarnhook;
1635IEXT SV * Iparsehook;
79072805 1636
c07a80fd
PP
1637/* Various states of an input record separator SV (rs, nrs) */
1638#define RsSNARF(sv) (! SvOK(sv))
1639#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1640#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1641
79072805
LW
1642/* switches */
1643IEXT char * Icddir;
1644IEXT bool Iminus_c;
a5f75d66 1645IEXT char Ipatchlevel[10];
728e2803 1646IEXT char ** Ilocalpatches;
c07a80fd 1647IEXT SV * Inrs;
2304df62 1648IEXT char * Isplitstr IINIT(" ");
79072805
LW
1649IEXT bool Ipreprocess;
1650IEXT bool Iminus_n;
1651IEXT bool Iminus_p;
1652IEXT bool Iminus_l;
1653IEXT bool Iminus_a;
2304df62 1654IEXT bool Iminus_F;
79072805
LW
1655IEXT bool Idoswitches;
1656IEXT bool Idowarn;
1657IEXT bool Idoextract;
79072805
LW
1658IEXT bool Isawampersand; /* must save all match strings */
1659IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805
LW
1660IEXT bool Isawvec;
1661IEXT bool Iunsafe;
79072805
LW
1662IEXT char * Iinplace;
1663IEXT char * Ie_tmpname;
760ac839 1664IEXT PerlIO * Ie_fp;
79072805 1665IEXT U32 Iperldb;
748a9306 1666 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1667IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805
LW
1668
1669/* magical thingies */
85e6fe83 1670IEXT Time_t Ibasetime; /* $^T */
79072805
LW
1671IEXT SV * Iformfeed; /* $^L */
1672IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1673IEXT SV * Irs; /* $/ */
79072805 1674IEXT char * Iofs; /* $, */
8990e307 1675IEXT STRLEN Iofslen;
79072805 1676IEXT char * Iors; /* $\ */
8990e307 1677IEXT STRLEN Iorslen;
79072805
LW
1678IEXT char * Iofmt; /* $# */
1679IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1680IEXT int Imultiline; /* $*--do strings hold >1 line? */
748a9306 1681IEXT U32 Istatusvalue; /* $? */
79072805
LW
1682
1683IEXT struct stat Istatcache; /* _ */
1684IEXT GV * Istatgv;
1685IEXT SV * Istatname IINIT(Nullsv);
1686
1687/* shortcuts to various I/O objects */
1688IEXT GV * Istdingv;
1689IEXT GV * Ilast_in_gv;
1690IEXT GV * Idefgv;
1691IEXT GV * Iargvgv;
1692IEXT GV * Idefoutgv;
79072805
LW
1693IEXT GV * Iargvoutgv;
1694
1695/* shortcuts to regexp stuff */
1696IEXT GV * Ileftgv;
1697IEXT GV * Iampergv;
1698IEXT GV * Irightgv;
1699IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805
LW
1700IEXT I32 * Iscreamfirst;
1701IEXT I32 * Iscreamnext;
1702IEXT I32 Imaxscream IINIT(-1);
1703IEXT SV * Ilastscream;
1704
4633a7c4
LW
1705/* shortcuts to misc objects */
1706IEXT GV * Ierrgv;
1707
79072805
LW
1708/* shortcuts to debugging objects */
1709IEXT GV * IDBgv;
1710IEXT GV * IDBline;
1711IEXT GV * IDBsub;
1712IEXT SV * IDBsingle;
1713IEXT SV * IDBtrace;
1714IEXT SV * IDBsignal;
1715IEXT AV * Ilineary; /* lines of script for debugger */
1716IEXT AV * Idbargs; /* args to call listed by caller function */
1717
1718/* symbol tables */
1719IEXT HV * Idefstash; /* main symbol table */
1720IEXT HV * Icurstash; /* symbol table for current package */
1721IEXT HV * Idebstash; /* symbol table for perldb package */
1722IEXT SV * Icurstname; /* name of current package */
93a17b20
LW
1723IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1724IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1725IEXT HV * Istrtab; /* shared string table */
79072805
LW
1726
1727/* memory management */
79072805
LW
1728IEXT SV ** Itmps_stack;
1729IEXT I32 Itmps_ix IINIT(-1);
1730IEXT I32 Itmps_floor IINIT(-1);
8990e307
LW
1731IEXT I32 Itmps_max;
1732IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1733IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307
LW
1734IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1735IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805
LW
1736
1737/* funky return mechanisms */
1738IEXT I32 Ilastspbase;
1739IEXT I32 Ilastsize;
1740IEXT int Iforkprocess; /* so do_open |- can return proc# */
1741
1742/* subprocess state */
1743IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805
LW
1744
1745/* internal state */
463ee0b2
LW
1746IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1747IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1748IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1749IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1750IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1751IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1752IEXT bool Itainting; /* doing taint checks */
e50aee73 1753IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805
LW
1754
1755/* trace state */
1756IEXT I32 Idlevel;
1757IEXT I32 Idlmax IINIT(128);
1758IEXT char * Idebname;
1759IEXT char * Idebdelim;
1760
1761/* current interpreter roots */
748a9306 1762IEXT CV * Imain_cv;
463ee0b2
LW
1763IEXT OP * Imain_root;
1764IEXT OP * Imain_start;
1765IEXT OP * Ieval_root;
1766IEXT OP * Ieval_start;
79072805
LW
1767
1768/* runtime control stuff */
1769IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1770IEXT COP * Icurcopdb IINIT(NULL);
79072805
LW
1771IEXT line_t Icopline IINIT(NOLINE);
1772IEXT CONTEXT * Icxstack;
1773IEXT I32 Icxstack_ix IINIT(-1);
1774IEXT I32 Icxstack_max IINIT(128);
a5f75d66 1775IEXT Sigjmp_buf Itop_env;
a0d0e21e 1776IEXT I32 Irunlevel;
79072805
LW
1777
1778/* stack stuff */
0c30d9ec 1779IEXT AV * Icurstack; /* THE STACK */
79072805
LW
1780IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1781IEXT SV ** Imystack_base; /* stack->array_ary */
1782IEXT SV ** Imystack_sp; /* stack pointer now */
1783IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1784
1785/* format accumulators */
463ee0b2
LW
1786IEXT SV * Iformtarget;
1787IEXT SV * Ibodytarget;
1788IEXT SV * Itoptarget;
79072805
LW
1789
1790/* statics moved here for shared library purposes */
93a17b20 1791IEXT SV Istrchop; /* return value from chop */
79072805
LW
1792IEXT int Ifilemode; /* so nextargv() can preserve mode */
1793IEXT int Ilastfd; /* what to preserve mode on */
1794IEXT char * Ioldname; /* what to preserve mode on */
1795IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1796IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1797IEXT OP * Isortcop; /* user defined sort routine */
1798IEXT HV * Isortstash; /* which is in some package or other */
1799IEXT GV * Ifirstgv; /* $a */
1800IEXT GV * Isecondgv; /* $b */
1801IEXT AV * Isortstack; /* temp stack during pp_sort() */
1802IEXT AV * Isignalstack; /* temp stack during sighandler() */
1803IEXT SV * Imystrk; /* temp key string for do_each() */
1804IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805
LW
1805IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1806IEXT I32 Igensym; /* next symbol for getsym() to define */
1807IEXT bool Ipreambled;
3c81428c 1808IEXT AV * Ipreambleav;
79072805
LW
1809IEXT int Ilaststatval IINIT(-1);
1810IEXT I32 Ilaststype IINIT(OP_STAT);
1811
1812#undef IEXT
1813#undef IINIT
1814
8990e307 1815#ifdef MULTIPLICITY
79072805
LW
1816};
1817#else
1818struct interpreter {
1819 char broiled;
1820};
1821#endif
1822
1823#include "pp.h"
1824
1825#ifdef __cplusplus
1826extern "C" {
1827#endif
1828
1829#include "proto.h"
1830
a0d0e21e
LW
1831#ifdef EMBED
1832#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1833#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1834#else
1835#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1836#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1837#endif
1838
79072805
LW
1839#ifdef __cplusplus
1840};
1841#endif
1842
93a17b20 1843/* The following must follow proto.h */
79072805
LW
1844
1845#ifdef DOINIT
bbce6d69 1846
4633a7c4 1847EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW
1848 magic_set,
1849 magic_len,
1850 0, 0};
4633a7c4
LW
1851EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1852EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW
1853 0, magic_clearenv,
1854 0};
4633a7c4 1855EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec
PP
1856EXT MGVTBL vtbl_sigelem = {magic_getsig,
1857 magic_setsig,
1858 0, magic_clearsig,
1859 0};
4633a7c4 1860EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1861 0};
4633a7c4 1862EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW
1863 magic_setpack,
1864 0, magic_clearpack,
1865 0};
4633a7c4 1866EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1867 0, 0, 0};
4633a7c4 1868EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1869 0, 0, 0};
4633a7c4 1870EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1871 0, 0, 0};
4633a7c4 1872EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2
LW
1873 magic_setarylen,
1874 0, 0, 0};
4633a7c4 1875EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW
1876 magic_setglob,
1877 0, 0, 0};
4633a7c4 1878EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1879 0, 0, 0};
99abf803
PP
1880EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1881 0, 0, 0};
4633a7c4 1882EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1883 0, 0, 0};
4633a7c4 1884EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1885 0, 0, 0};
4633a7c4 1886EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1887 0, 0, 0};
4633a7c4 1888EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW
1889 magic_setpos,
1890 0, 0, 0};
4633a7c4 1891EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1892 0, 0, 0};
55497cff
PP
1893EXT MGVTBL vtbl_fm = {0, magic_setfm,
1894 0, 0, 0};
4633a7c4 1895EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW
1896 magic_setuvar,
1897 0, 0, 0};
71be2cbc
PP
1898EXT MGVTBL vtbl_itervar = {magic_getitervar,magic_setitervar,
1899 0, 0, magic_freeitervar};
a0d0e21e 1900
36477c24 1901#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
1902EXT MGVTBL vtbl_collxfrm = {0,
1903 magic_setcollxfrm,
1904 0, 0, 0};
1905#endif
1906
a0d0e21e 1907#ifdef OVERLOAD
4633a7c4 1908EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1909 0, 0, magic_setamagic};
4633a7c4 1910EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1911 0, 0, magic_setamagic};
a0d0e21e
LW
1912#endif /* OVERLOAD */
1913
bbce6d69
PP
1914#else /* !DOINIT */
1915
79072805
LW
1916EXT MGVTBL vtbl_sv;
1917EXT MGVTBL vtbl_env;
1918EXT MGVTBL vtbl_envelem;
1919EXT MGVTBL vtbl_sig;
1920EXT MGVTBL vtbl_sigelem;
463ee0b2
LW
1921EXT MGVTBL vtbl_pack;
1922EXT MGVTBL vtbl_packelem;
79072805 1923EXT MGVTBL vtbl_dbline;
463ee0b2
LW
1924EXT MGVTBL vtbl_isa;
1925EXT MGVTBL vtbl_isaelem;
79072805
LW
1926EXT MGVTBL vtbl_arylen;
1927EXT MGVTBL vtbl_glob;
93a17b20 1928EXT MGVTBL vtbl_mglob;
99abf803 1929EXT MGVTBL vtbl_nkeys;
463ee0b2 1930EXT MGVTBL vtbl_taint;
79072805
LW
1931EXT MGVTBL vtbl_substr;
1932EXT MGVTBL vtbl_vec;
a0d0e21e 1933EXT MGVTBL vtbl_pos;
79072805 1934EXT MGVTBL vtbl_bm;
55497cff 1935EXT MGVTBL vtbl_fm;
79072805 1936EXT MGVTBL vtbl_uvar;
71be2cbc 1937EXT MGVTBL vtbl_itervar;
a0d0e21e 1938
36477c24 1939#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
1940EXT MGVTBL vtbl_collxfrm;
1941#endif
1942
a0d0e21e
LW
1943#ifdef OVERLOAD
1944EXT MGVTBL vtbl_amagic;
1945EXT MGVTBL vtbl_amagicelem;
1946#endif /* OVERLOAD */
1947
bbce6d69 1948#endif /* !DOINIT */
85e6fe83 1949
a0d0e21e 1950#ifdef OVERLOAD
c0315cdf 1951
a0d0e21e
LW
1952EXT long amagic_generation;
1953
a6006777 1954#define NofAMmeth 58
a0d0e21e 1955#ifdef DOINIT
a6006777
PP
1956EXTCONST char * AMG_names[NofAMmeth] = {
1957 "fallback", "abs", /* "fallback" should be the first. */
1958 "bool", "nomethod",
1959 "\"\"", "0+",
1960 "+", "+=",
1961 "-", "-=",
1962 "*", "*=",
1963 "/", "/=",
1964 "%", "%=",
1965 "**", "**=",
1966 "<<", "<<=",
1967 ">>", ">>=",
1968 "&", "&=",
1969 "|", "|=",
1970 "^", "^=",
1971 "<", "<=",
1972 ">", ">=",
1973 "==", "!=",
1974 "<=>", "cmp",
1975 "lt", "le",
1976 "gt", "ge",
1977 "eq", "ne",
1978 "!", "~",
1979 "++", "--",
1980 "atan2", "cos",
1981 "sin", "exp",
1982 "log", "sqrt",
1983 "x", "x=",
1984 ".", ".=",
1985 "=", "neg"
a0d0e21e
LW
1986};
1987#else
a6006777 1988EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW
1989#endif /* def INITAMAGIC */
1990
a6006777 1991struct am_table {
a0d0e21e
LW
1992 long was_ok_sub;
1993 long was_ok_am;
a6006777
PP
1994 U32 flags;
1995 CV* table[NofAMmeth];
a0d0e21e
LW
1996 long fallback;
1997};
a6006777
PP
1998struct am_table_short {
1999 long was_ok_sub;
2000 long was_ok_am;
2001 U32 flags;
2002};
a0d0e21e 2003typedef struct am_table AMT;
a6006777 2004typedef struct am_table_short AMTS;
a0d0e21e
LW
2005
2006#define AMGfallNEVER 1
2007#define AMGfallNO 2
2008#define AMGfallYES 3
2009
a6006777
PP
2010#define AMTf_AMAGIC 1
2011#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2012#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2013#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2014
a0d0e21e
LW
2015enum {
2016 fallback_amg, abs_amg,
2017 bool__amg, nomethod_amg,
2018 string_amg, numer_amg,
2019 add_amg, add_ass_amg,
2020 subtr_amg, subtr_ass_amg,
2021 mult_amg, mult_ass_amg,
2022 div_amg, div_ass_amg,
2023 mod_amg, mod_ass_amg,
2024 pow_amg, pow_ass_amg,
2025 lshift_amg, lshift_ass_amg,
2026 rshift_amg, rshift_ass_amg,
748a9306
LW
2027 band_amg, band_ass_amg,
2028 bor_amg, bor_ass_amg,
2029 bxor_amg, bxor_ass_amg,
a0d0e21e
LW
2030 lt_amg, le_amg,
2031 gt_amg, ge_amg,
2032 eq_amg, ne_amg,
2033 ncmp_amg, scmp_amg,
2034 slt_amg, sle_amg,
2035 sgt_amg, sge_amg,
2036 seq_amg, sne_amg,
a0d0e21e
LW
2037 not_amg, compl_amg,
2038 inc_amg, dec_amg,
2039 atan2_amg, cos_amg,
2040 sin_amg, exp_amg,
2041 log_amg, sqrt_amg,
2042 repeat_amg, repeat_ass_amg,
748a9306
LW
2043 concat_amg, concat_ass_amg,
2044 copy_amg, neg_amg
a0d0e21e 2045};
c0315cdf
JH
2046
2047/*
2048 * some compilers like to redefine cos et alia as faster
2049 * (and less accurate?) versions called F_cos et cetera (Quidquid
2050 * latine dictum sit, altum viditur.) This trick collides with
2051 * the Perl overloading (amg). The following #defines fool both.
2052 */
2053
2054#ifdef _FASTMATH
2055# ifdef atan2
2056# define F_atan2_amg atan2_amg
2057# endif
2058# ifdef cos
2059# define F_cos_amg cos_amg
2060# endif
2061# ifdef exp
2062# define F_exp_amg exp_amg
2063# endif
2064# ifdef log
2065# define F_log_amg log_amg
2066# endif
2067# ifdef pow
2068# define F_pow_amg pow_amg
2069# endif
2070# ifdef sin
2071# define F_sin_amg sin_amg
2072# endif
2073# ifdef sqrt
2074# define F_sqrt_amg sqrt_amg
2075# endif
2076#endif /* _FASTMATH */
2077
a0d0e21e 2078#endif /* OVERLOAD */
36477c24
PP
2079
2080#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2081EXT U32 collation_ix; /* Collation generation index */
2082EXT char * collation_name; /* Name of current collation */
2083EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2084EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2085EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2086#endif /* USE_LOCALE_COLLATE */
bbce6d69 2087
36477c24 2088#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2089
2090EXT char * numeric_name; /* Name of current numeric locale */
2091EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2092EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2093
36477c24
PP
2094#define SET_NUMERIC_STANDARD() \
2095 STMT_START { \
2096 if (! numeric_standard) \
2097 perl_set_numeric_standard(); \
2098 } STMT_END
2099
2100#define SET_NUMERIC_LOCAL() \
2101 STMT_START { \
2102 if (! numeric_local) \
2103 perl_set_numeric_local(); \
2104 } STMT_END
bbce6d69 2105
36477c24 2106#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2107
36477c24
PP
2108#define SET_NUMERIC_STANDARD() /**/
2109#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2110
36477c24 2111#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2112
760ac839
LW
2113#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2114/*
2115 * Now we have __attribute__ out of the way
2116 * Remap printf
2117 */
2118#define printf PerlIO_stdoutf
2119#endif
2120
85e6fe83 2121#endif /* Include guard */
a6e633de 2122