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a0d0e21e 1/* perl.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1987-1997, 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 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 27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
728e2803 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 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 82/* define this once if either system, instead of cluttering up the src */
68dc0745 83#if defined(MSDOS) || defined(atarist) || defined(WIN32)
ee0007ab
LW		 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
68dc0745 91#if defined(__cplusplus) || defined(WIN32)
92# define DONT_DECLARE_STD 1
93#endif
94
352d5a3a 95#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805
LW		 96# ifdef __cplusplus
97# define VOL // to temporarily suppress warnings
98# else
99# define VOL volatile
100# endif
663a0e37 101#else
79072805 102# define VOL
663a0e37
LW		 103#endif
104
bbce6d69 105#define TAINT (tainted = TRUE)
106#define TAINT_NOT (tainted = FALSE)
107#define TAINT_IF(c) if (c) { tainted = TRUE; }
108#define TAINT_ENV() if (tainting) { taint_env(); }
109#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 110
a6e633de 111/* XXX All process group stuff is handled in pp_sys.c. Should these
112 defines move there? If so, I could simplify this a lot. --AD 9/96.
113*/
114/* Process group stuff changed from traditional BSD to POSIX.
115 perlfunc.pod documents the traditional BSD-style syntax, so we'll
116 try to preserve that, if possible.
117*/
118#ifdef HAS_SETPGID
119# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 120#else
a6e633de 121# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
122# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
123# else
124# ifdef HAS_SETPGRP2 /* DG/UX */
125# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
126# endif
127# endif
128#endif
129#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
130# define HAS_SETPGRP /* Well, effectively it does . . . */
131#endif
132
133/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
134 our life easier :-) so we'll try it.
135*/
136#ifdef HAS_GETPGID
137# define BSD_GETPGRP(pid) getpgid((pid))
138#else
139# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
140# define BSD_GETPGRP(pid) getpgrp((pid))
141# else
142# ifdef HAS_GETPGRP2 /* DG/UX */
143# define BSD_GETPGRP(pid) getpgrp2((pid))
144# endif
145# endif
146#endif
147#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
148# define HAS_GETPGRP /* Well, effectively it does . . . */
149#endif
150
151/* These are not exact synonyms, since setpgrp() and getpgrp() may
152 have different behaviors, but perl.h used to define USE_BSDPGRP
153 (prior to 5.003_05) so some extension might depend on it.
154*/
155#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
156# ifndef USE_BSDPGRP
157# define USE_BSDPGRP
158# endif
663a0e37
LW		 159#endif
160
760ac839
LW		 161#ifndef _TYPES_ /* If types.h defines this it's easy. */
162# ifndef major /* Does everyone's types.h define this? */
163# include <sys/types.h>
164# endif
165#endif
166
167#ifdef __cplusplus
168# ifndef I_STDARG
169# define I_STDARG 1
170# endif
171#endif
172
173#ifdef I_STDARG
174# include <stdarg.h>
175#else
176# ifdef I_VARARGS
177# include <varargs.h>
178# endif
179#endif
180
181#include "perlio.h"
0c30d9ec 182
4633a7c4 183#ifdef USE_NEXT_CTYPE
0c30d9ec 184
185#if NX_CURRENT_COMPILER_RELEASE >= 400
186#include <objc/NXCType.h>
187#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 188#include <appkit/NXCType.h>
0c30d9ec 189#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
190
191#else /* !USE_NEXT_CTYPE */
fe14fcc3 192#include <ctype.h>
0c30d9ec 193#endif /* USE_NEXT_CTYPE */
a0d0e21e
LW		 194
195#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
196#undef METHOD
197#endif
198
36477c24 199#ifdef I_LOCALE
200# include <locale.h>
201#endif
202
203#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
204# define USE_LOCALE
205# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
206 && defined(HAS_STRXFRM)
207# define USE_LOCALE_COLLATE
208# endif
209# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
210# define USE_LOCALE_CTYPE
211# endif
212# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
213# define USE_LOCALE_NUMERIC
214# endif
215#endif /* !NO_LOCALE && HAS_SETLOCALE */
216
fe14fcc3 217#include <setjmp.h>
79072805 218
a0d0e21e 219#ifdef I_SYS_PARAM
79072805
LW		 220# ifdef PARAM_NEEDS_TYPES
221# include <sys/types.h>
222# endif
223# include <sys/param.h>
352d5a3a 224#endif
79072805
LW		 225
226
227/* Use all the "standard" definitions? */
a0d0e21e 228#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 229# include <stdlib.h>
ff68c719 230#endif
03a14243 231
55497cff 232/* This comes after <stdlib.h> so we don't try to change the standard
233 * library prototypes; we'll use our own in proto.h instead. */
234
4633a7c4 235#ifdef MYMALLOC
55497cff 236
760ac839 237# ifdef HIDEMYMALLOC
55497cff 238# define malloc Mymalloc
239# define calloc Mycalloc
05effc97 240# define realloc Myremalloc
55497cff 241# define free Myfree
242# endif
243# ifdef EMBEDMYMALLOC
244# define malloc Perl_malloc
245# define calloc Perl_calloc
246# define realloc Perl_realloc
247# define free Perl_free
4633a7c4 248# endif
55497cff 249
250# undef safemalloc
251# undef safecalloc
252# undef saferealloc
253# undef safefree
254# define safemalloc malloc
255# define safecalloc calloc
4633a7c4 256# define saferealloc realloc
55497cff 257# define safefree free
258
259#endif /* MYMALLOC */
4633a7c4 260
a0d0e21e
LW		 261#define MEM_SIZE Size_t
262
ff68c719 263#if defined(STANDARD_C) && defined(I_STDDEF)
264# include <stddef.h>
71be2cbc 265# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 266#else
71be2cbc 267# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719 268#endif
269
a0d0e21e
LW		 270#if defined(I_STRING) || defined(__cplusplus)
271# include <string.h>
272#else
273# include <strings.h>
274#endif
275
276#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
277#define strchr index
278#define strrchr rindex
279#endif
280
16d20bd9
AD		 281#ifdef I_MEMORY
282# include <memory.h>
283#endif
284
fe14fcc3 285#ifdef HAS_MEMCPY
85e6fe83 286# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 287# ifndef memcpy
a0d0e21e 288 extern char * memcpy _((char*, char*, int));
ee0007ab
LW		 289# endif
290# endif
291#else
292# ifndef memcpy
293# ifdef HAS_BCOPY
294# define memcpy(d,s,l) bcopy(s,d,l)
295# else
296# define memcpy(d,s,l) my_bcopy(s,d,l)
297# endif
298# endif
299#endif /* HAS_MEMCPY */
fe14fcc3 300
ee0007ab 301#ifdef HAS_MEMSET
85e6fe83 302# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 303# ifndef memset
a0d0e21e 304 extern char *memset _((char*, int, int));
ee0007ab
LW		 305# endif
306# endif
307# define memzero(d,l) memset(d,0,l)
308#else
309# ifndef memzero
310# ifdef HAS_BZERO
311# define memzero(d,l) bzero(d,l)
312# else
313# define memzero(d,l) my_bzero(d,l)
314# endif
352d5a3a 315# endif
ee0007ab
LW		 316#endif /* HAS_MEMSET */
317
85e6fe83 318#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 319# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 320# define memmove(d,s,l) bcopy(s,d,l)
321# else
2304df62 322# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805
LW		 323# define memmove(d,s,l) memcpy(d,s,l)
324# else
325# define memmove(d,s,l) my_bcopy(s,d,l)
326# endif
327# endif
d9d8d8de 328#endif
378cc40b 329
36477c24 330#if defined(mips) && defined(ultrix) && !defined(__STDC__)
331# undef HAS_MEMCMP
332#endif
333
334#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
335# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
336# ifndef memcmp
337 extern int memcmp _((char*, char*, int));
338# endif
339# endif
340# ifdef BUGGY_MSC
341 # pragma function(memcmp)
342# endif
343#else
344# ifndef memcmp
345# define memcmp my_memcmp
346# endif
347#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
348
349#ifndef HAS_BCMP
350# ifndef bcmp
351# define bcmp(s1,s2,l) memcmp(s1,s2,l)
352# endif
353#endif /* !HAS_BCMP */
354
ae986130 355#ifdef I_NETINET_IN
79072805 356# include <netinet/in.h>
ae986130
LW		 357#endif
358
1aef975c 359#ifdef I_SYS_STAT
8d063cd8 360#include <sys/stat.h>
1aef975c 361#endif
79072805 362
a0d0e21e
LW		 363/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
364 like UTekV) are broken, sometimes giving false positives. Undefine
365 them here and let the code below set them to proper values.
366
367 The ghs macro stands for GreenHills Software C-1.8.5 which
368 is the C compiler for sysV88 and the various derivatives.
369 This header file bug is corrected in gcc-2.5.8 and later versions.
370 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
371
372#if defined(uts) || (defined(m88k) && defined(ghs))
79072805
LW		 373# undef S_ISDIR
374# undef S_ISCHR
375# undef S_ISBLK
376# undef S_ISREG
377# undef S_ISFIFO
378# undef S_ISLNK
ee0007ab 379#endif
135863df 380
663a0e37
LW		 381#ifdef I_TIME
382# include <time.h>
ffed7fef 383#endif
663a0e37 384
fe14fcc3 385#ifdef I_SYS_TIME
85e6fe83 386# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 387# define KERNEL
388# endif
389# include <sys/time.h>
85e6fe83 390# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 391# undef KERNEL
392# endif
a687059c 393#endif
135863df 394
55497cff 395#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 396# include <sys/times.h>
d9d8d8de 397#endif
8d063cd8 398
fe14fcc3 399#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 400# undef HAS_STRERROR
663a0e37
LW		 401#endif
402
a0d0e21e
LW		 403#ifndef HAS_MKFIFO
404# ifndef mkfifo
405# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
406# endif
407#endif /* !HAS_MKFIFO */
408
663a0e37 409#include <errno.h>
ed6116ce 410#ifdef HAS_SOCKET
85e6fe83 411# ifdef I_NET_ERRNO
ed6116ce
LW		 412# include <net/errno.h>
413# endif
414#endif
f86702cc 415
416#ifdef VMS
417# define SETERRNO(errcode,vmserrcode) \
418 STMT_START { \
419 set_errno(errcode); \
420 set_vaxc_errno(vmserrcode); \
421 } STMT_END
748a9306 422#else
f86702cc 423# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 424#endif
ed6116ce 425
55497cff 426#ifndef errno
79072805 427 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 428#endif
663a0e37 429
2304df62 430#ifdef HAS_STRERROR
a0d0e21e
LW		 431# ifdef VMS
432 char *strerror _((int,...));
433# else
68dc0745 434#ifndef DONT_DECLARE_STD
a0d0e21e 435 char *strerror _((int));
68dc0745 436#endif
a0d0e21e 437# endif
2304df62
AD		 438# ifndef Strerror
439# define Strerror strerror
440# endif
441#else
442# ifdef HAS_SYS_ERRLIST
79072805
LW		 443 extern int sys_nerr;
444 extern char *sys_errlist[];
2304df62
AD		 445# ifndef Strerror
446# define Strerror(e) \
79072805 447 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 448# endif
79072805 449# endif
35c8bce7 450#endif
663a0e37 451
2304df62 452#ifdef I_SYS_IOCTL
79072805
LW		 453# ifndef _IOCTL_
454# include <sys/ioctl.h>
455# endif
a687059c
LW		 456#endif
457
ee0007ab 458#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 459# ifdef HAS_SOCKETPAIR
460# undef HAS_SOCKETPAIR
461# endif
2304df62
AD		 462# ifdef I_NDBM
463# undef I_NDBM
79072805 464# endif
a687059c
LW		 465#endif
466
a687059c 467#if INTSIZE == 2
79072805
LW		 468# define htoni htons
469# define ntohi ntohs
a687059c 470#else
79072805
LW		 471# define htoni htonl
472# define ntohi ntohl
a687059c
LW		 473#endif
474
a0d0e21e 475/* Configure already sets Direntry_t */
35c8bce7 476#if defined(I_DIRENT)
663a0e37 477# include <dirent.h>
a0d0e21e
LW		 478# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
479# include <sys/dir.h>
480# endif
ae986130 481#else
fe14fcc3 482# ifdef I_SYS_NDIR
79a0689e 483# include <sys/ndir.h>
663a0e37 484# else
fe14fcc3 485# ifdef I_SYS_DIR
79a0689e
LW		 486# ifdef hp9000s500
487# include <ndir.h> /* may be wrong in the future */
488# else
489# include <sys/dir.h>
490# endif
663a0e37
LW		 491# endif
492# endif
4633a7c4 493#endif
a687059c 494
352d5a3a
LW		 495#ifdef FPUTS_BOTCH
496/* work around botch in SunOS 4.0.1 and 4.0.2 */
497# ifndef fputs
79072805 498# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW		 499# endif
500#endif
501
c623bd54
LW		 502/*
503 * The following gobbledygook brought to you on behalf of __STDC__.
504 * (I could just use #ifndef __STDC__, but this is more bulletproof
505 * in the face of half-implementations.)
506 */
507
508#ifndef S_IFMT
509# ifdef _S_IFMT
510# define S_IFMT _S_IFMT
511# else
512# define S_IFMT 0170000
513# endif
514#endif
515
516#ifndef S_ISDIR
517# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
518#endif
519
520#ifndef S_ISCHR
521# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
522#endif
523
524#ifndef S_ISBLK
fe14fcc3
LW		 525# ifdef S_IFBLK
526# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
527# else
528# define S_ISBLK(m) (0)
529# endif
c623bd54
LW		 530#endif
531
532#ifndef S_ISREG
533# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
534#endif
535
536#ifndef S_ISFIFO
fe14fcc3
LW		 537# ifdef S_IFIFO
538# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
539# else
540# define S_ISFIFO(m) (0)
541# endif
c623bd54
LW		 542#endif
543
544#ifndef S_ISLNK
545# ifdef _S_ISLNK
546# define S_ISLNK(m) _S_ISLNK(m)
547# else
548# ifdef _S_IFLNK
549# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
550# else
551# ifdef S_IFLNK
552# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
553# else
554# define S_ISLNK(m) (0)
555# endif
556# endif
557# endif
558#endif
559
560#ifndef S_ISSOCK
561# ifdef _S_ISSOCK
562# define S_ISSOCK(m) _S_ISSOCK(m)
563# else
564# ifdef _S_IFSOCK
565# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
566# else
567# ifdef S_IFSOCK
568# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
569# else
570# define S_ISSOCK(m) (0)
571# endif
572# endif
573# endif
574#endif
575
576#ifndef S_IRUSR
577# ifdef S_IREAD
578# define S_IRUSR S_IREAD
579# define S_IWUSR S_IWRITE
580# define S_IXUSR S_IEXEC
581# else
582# define S_IRUSR 0400
583# define S_IWUSR 0200
584# define S_IXUSR 0100
585# endif
586# define S_IRGRP (S_IRUSR>>3)
587# define S_IWGRP (S_IWUSR>>3)
588# define S_IXGRP (S_IXUSR>>3)
589# define S_IROTH (S_IRUSR>>6)
590# define S_IWOTH (S_IWUSR>>6)
591# define S_IXOTH (S_IXUSR>>6)
592#endif
593
594#ifndef S_ISUID
595# define S_ISUID 04000
596#endif
597
598#ifndef S_ISGID
599# define S_ISGID 02000
600#endif
601
79072805
LW		 602#ifdef ff_next
603# undef ff_next
352d5a3a
LW		 604#endif
605
a0d0e21e 606#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 607# define SLOPPYDIVIDE
608#endif
609
748a9306
LW		 610#ifdef UV
611#undef UV
612#endif
613
27d4fb96 614/* XXX QUAD stuff is not currently supported on most systems.
615 Specifically, perl internals don't support long long. Among
616 the many problems is that some compilers support long long,
617 but the underlying library functions (such as sprintf) don't.
618 Some things do work (such as quad pack/unpack on convex);
619 also some systems use long long for the fpos_t typedef. That
620 seems to work too.
621
622 The IV type is supposed to be long enough to hold any integral
623 value or a pointer.
624 --Andy Dougherty August 1996
625*/
626
f86702cc 627#ifdef cray
628# define Quad_t int
629#else
630# ifdef convex
631# define Quad_t long long
45d8adaa 632# else
ff0cee69 633# if BYTEORDER > 0xFFFF
634# define Quad_t long
45d8adaa
LW		 635# endif
636# endif
f86702cc 637#endif
638
639#ifdef Quad_t
640# define HAS_QUAD
748a9306
LW		 641 typedef Quad_t IV;
642 typedef unsigned Quad_t UV;
27d4fb96 643# define IV_MAX PERL_QUAD_MAX
644# define IV_MIN PERL_QUAD_MIN
645# define UV_MAX PERL_UQUAD_MAX
646# define UV_MIN PERL_UQUAD_MIN
79072805 647#else
748a9306
LW		 648 typedef long IV;
649 typedef unsigned long UV;
27d4fb96 650# define IV_MAX PERL_LONG_MAX
651# define IV_MIN PERL_LONG_MIN
652# define UV_MAX PERL_ULONG_MAX
653# define UV_MIN PERL_ULONG_MIN
79072805
LW		 654#endif
655
760ac839
LW		 656/* Previously these definitions used hardcoded figures.
657 * It is hoped these formula are more portable, although
658 * no data one way or another is presently known to me.
659 * The "PERL_" names are used because these calculated constants
660 * do not meet the ANSI requirements for LONG_MAX, etc., which
661 * need to be constants acceptable to #if - kja
662 * define PERL_LONG_MAX 2147483647L
663 * define PERL_LONG_MIN (-LONG_MAX - 1)
664 * define PERL ULONG_MAX 4294967295L
665 */
666
667#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
668# include <limits.h>
669#else
670#ifdef I_VALUES
671# include <values.h>
672#endif
673#endif
674
99abf803 675/*
676 * Try to figure out max and min values for the integral types. THE CORRECT
677 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
678 * following hacks are used if neither limits.h or values.h provide them:
679 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
680 * for types < int: (unsigned TYPE)~(unsigned)0
681 * The argument to ~ must be unsigned so that later signed->unsigned
682 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
683 * and it must not be smaller than int because ~ does integral promotion.
684 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
685 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
686 * The latter is a hack which happens to work on some machines but
687 * does *not* catch any random system, or things like integer types
688 * with NaN if that is possible.
689 *
690 * All of the types are explicitly cast to prevent accidental loss of
691 * numeric range, and in the hope that they will be less likely to confuse
692 * over-eager optimizers.
693 *
694 */
27d4fb96 695
99abf803 696#define PERL_UCHAR_MIN ((unsigned char)0)
697
698#ifdef UCHAR_MAX
699# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 700#else
99abf803 701# ifdef MAXUCHAR
702# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 703# else
99abf803 704# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 705# endif
706#endif
99abf803 707
708/*
709 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
710 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
711 * depending on local options. Until Configure detects this (or at least
712 * detects whether the "signed" keyword is available) the CHAR ranges
713 * will not be included. UCHAR functions normally.
714 * - kja
715 */
27d4fb96 716
99abf803 717#define PERL_USHORT_MIN ((unsigned short)0)
718
719#ifdef USHORT_MAX
720# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 721#else
99abf803 722# ifdef MAXUSHORT
723# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 724# else
99abf803 725# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 726# endif
727#endif
728
27d4fb96 729#ifdef SHORT_MAX
99abf803 730# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 731#else
732# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 733# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 734# else
99abf803 735# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 736# endif
737#endif
738
739#ifdef SHORT_MIN
99abf803 740# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 741#else
742# ifdef MINSHORT
99abf803 743# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 744# else
745# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
746# endif
747#endif
748
99abf803 749#ifdef UINT_MAX
750# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 751#else
99abf803 752# ifdef MAXUINT
753# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 754# else
99abf803 755# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 756# endif
757#endif
758
99abf803 759#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 760
761#ifdef INT_MAX
99abf803 762# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 763#else
764# ifdef MAXINT /* Often used in <values.h> */
99abf803 765# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 766# else
99abf803 767# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 768# endif
769#endif
770
771#ifdef INT_MIN
99abf803 772# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 773#else
774# ifdef MININT
99abf803 775# define PERL_INT_MIN ((int)MININT)
27d4fb96 776# else
777# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
778# endif
779#endif
780
99abf803 781#ifdef ULONG_MAX
782# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 783#else
99abf803 784# ifdef MAXULONG
785# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 786# else
99abf803 787# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 788# endif
789#endif
790
99abf803 791#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 792
760ac839 793#ifdef LONG_MAX
99abf803 794# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 795#else
796# ifdef MAXLONG /* Often used in <values.h> */
99abf803 797# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 798# else
99abf803 799# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 800# endif
801#endif
802
803#ifdef LONG_MIN
99abf803 804# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 805#else
806# ifdef MINLONG
99abf803 807# define PERL_LONG_MIN ((long)MINLONG)
760ac839 808# else
27d4fb96 809# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 810# endif
811#endif
812
99abf803 813#ifdef HAS_QUAD
814
815# ifdef UQUAD_MAX
816# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 817# else
99abf803 818# define PERL_UQUAD_MAX (~(UV)0)
760ac839 819# endif
760ac839 820
99abf803 821# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 822
27d4fb96 823# ifdef QUAD_MAX
99abf803 824# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 825# else
99abf803 826# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 827# endif
828
829# ifdef QUAD_MIN
99abf803 830# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 831# else
a6e633de 832# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 833# endif
834
760ac839
LW		 835#endif
836
ee0007ab 837typedef MEM_SIZE STRLEN;
450a55e4 838
79072805
LW		 839typedef struct op OP;
840typedef struct cop COP;
841typedef struct unop UNOP;
842typedef struct binop BINOP;
843typedef struct listop LISTOP;
844typedef struct logop LOGOP;
845typedef struct condop CONDOP;
846typedef struct pmop PMOP;
847typedef struct svop SVOP;
848typedef struct gvop GVOP;
849typedef struct pvop PVOP;
79072805
LW		 850typedef struct loop LOOP;
851
852typedef struct Outrec Outrec;
93a17b20 853typedef struct interpreter PerlInterpreter;
79072805 854typedef struct ff FF;
79072805
LW		 855typedef struct sv SV;
856typedef struct av AV;
857typedef struct hv HV;
858typedef struct cv CV;
378cc40b 859typedef struct regexp REGEXP;
79072805 860typedef struct gp GP;
0c30d9ec 861typedef struct gv GV;
8990e307 862typedef struct io IO;
79072805
LW		 863typedef struct context CONTEXT;
864typedef struct block BLOCK;
865
866typedef struct magic MAGIC;
ed6116ce 867typedef struct xrv XRV;
79072805
LW		 868typedef struct xpv XPV;
869typedef struct xpviv XPVIV;
ff68c719 870typedef struct xpvuv XPVUV;
79072805
LW		 871typedef struct xpvnv XPVNV;
872typedef struct xpvmg XPVMG;
873typedef struct xpvlv XPVLV;
874typedef struct xpvav XPVAV;
875typedef struct xpvhv XPVHV;
876typedef struct xpvgv XPVGV;
877typedef struct xpvcv XPVCV;
878typedef struct xpvbm XPVBM;
879typedef struct xpvfm XPVFM;
8990e307 880typedef struct xpvio XPVIO;
79072805
LW		 881typedef struct mgvtbl MGVTBL;
882typedef union any ANY;
8d063cd8 883
378cc40b 884#include "handy.h"
a0d0e21e 885
16d20bd9
AD		 886typedef I32 (*filter_t) _((int, SV *, int));
887#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
888#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
889#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
890
748a9306 891#ifdef DOSISH
4633a7c4
LW		 892# if defined(OS2)
893# include "os2ish.h"
894# else
748a9306 895# include "dosish.h"
4633a7c4 896# endif
a0d0e21e 897#else
748a9306
LW		 898# if defined(VMS)
899# include "vmsish.h"
900# else
0c30d9ec 901# if defined(PLAN9)
902# include "./plan9/plan9ish.h"
903# else
904# include "unixish.h"
905# endif
748a9306
LW		 906# endif
907#endif
3fc1aec6 908
68dc0745 909#ifdef VMS
910# define STATUS_NATIVE statusvalue_vms
911# define STATUS_NATIVE_EXPORT \
912 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
913# define STATUS_NATIVE_SET(n) \
914 STMT_START { \
915 statusvalue_vms = (n); \
916 if ((I32)statusvalue_vms == -1) \
917 statusvalue = -1; \
918 else if (statusvalue_vms & STS$M_SUCCESS) \
919 statusvalue = 0; \
920 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
921 statusvalue = 1 << 8; \
922 else \
923 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
924 } STMT_END
925# define STATUS_POSIX statusvalue
926# ifdef VMSISH_STATUS
927# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
928# else
929# define STATUS_CURRENT STATUS_POSIX
930# endif
931# define STATUS_POSIX_SET(n) \
932 STMT_START { \
933 statusvalue = (n); \
934 if (statusvalue != -1) { \
935 statusvalue &= 0xFFFF; \
936 statusvalue_vms = statusvalue ? 44 : 1; \
937 } \
938 else statusvalue_vms = -1; \
939 } STMT_END
940# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
941# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
942#else
943# define STATUS_NATIVE STATUS_POSIX
944# define STATUS_NATIVE_EXPORT STATUS_POSIX
945# define STATUS_NATIVE_SET STATUS_POSIX_SET
946# define STATUS_POSIX statusvalue
947# define STATUS_POSIX_SET(n) \
948 STMT_START { \
949 statusvalue = (n); \
950 if (statusvalue != -1) \
951 statusvalue &= 0xFFFF; \
952 } STMT_END
953# define STATUS_CURRENT STATUS_POSIX
954# define STATUS_ALL_SUCCESS (statusvalue = 0)
955# define STATUS_ALL_FAILURE (statusvalue = 1)
956#endif
957
3fc1aec6 958/* Some unistd.h's give a prototype for pause() even though
959 HAS_PAUSE ends up undefined. This causes the #define
960 below to be rejected by the compmiler. Sigh.
961*/
962#ifdef HAS_PAUSE
963#define Pause pause
964#else
965#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 966#endif
967
968#ifndef IOCPARM_LEN
969# ifdef IOCPARM_MASK
970 /* on BSDish systes we're safe */
971# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
972# else
973 /* otherwise guess at what's safe */
974# define IOCPARM_LEN(x) 256
975# endif
a0d0e21e
LW		 976#endif
977
79072805
LW		 978union any {
979 void* any_ptr;
980 I32 any_i32;
a0d0e21e 981 IV any_iv;
85e6fe83 982 long any_long;
a0d0e21e 983 void (*any_dptr) _((void*));
79072805
LW		 984};
985
378cc40b 986#include "regexp.h"
79072805 987#include "sv.h"
378cc40b 988#include "util.h"
8d063cd8 989#include "form.h"
79072805
LW		 990#include "gv.h"
991#include "cv.h"
992#include "opcode.h"
993#include "op.h"
994#include "cop.h"
995#include "av.h"
996#include "hv.h"
997#include "mg.h"
998#include "scope.h"
8d063cd8 999
4633a7c4
LW		 1000/* work around some libPW problems */
1001#ifdef DOINIT
1002EXT char Error[1];
1003#endif
1004
450a55e4 1005#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW		 1006# define I286
1007#endif
1008
fe14fcc3
LW		 1009#if defined(htonl) && !defined(HAS_HTONL)
1010#define HAS_HTONL
ae986130 1011#endif
fe14fcc3
LW		 1012#if defined(htons) && !defined(HAS_HTONS)
1013#define HAS_HTONS
ae986130 1014#endif
fe14fcc3
LW		 1015#if defined(ntohl) && !defined(HAS_NTOHL)
1016#define HAS_NTOHL
ae986130 1017#endif
fe14fcc3
LW		 1018#if defined(ntohs) && !defined(HAS_NTOHS)
1019#define HAS_NTOHS
ae986130 1020#endif
fe14fcc3 1021#ifndef HAS_HTONL
d9d8d8de 1022#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW		 1023#define HAS_HTONS
1024#define HAS_HTONL
1025#define HAS_NTOHS
1026#define HAS_NTOHL
a687059c
LW		 1027#define MYSWAP
1028#define htons my_swap
1029#define htonl my_htonl
1030#define ntohs my_swap
1031#define ntohl my_ntohl
1032#endif
1033#else
d9d8d8de 1034#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW		 1035#undef HAS_HTONS
1036#undef HAS_HTONL
1037#undef HAS_NTOHS
1038#undef HAS_NTOHL
a687059c
LW		 1039#endif
1040#endif
1041
988174c1
LW		 1042/*
1043 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1044 * -DWS
1045 */
1046#if BYTEORDER != 0x1234
1047# define HAS_VTOHL
1048# define HAS_VTOHS
1049# define HAS_HTOVL
1050# define HAS_HTOVS
1051# if BYTEORDER == 0x4321
1052# define vtohl(x) ((((x)&0xFF)<<24) \
1053 +(((x)>>24)&0xFF) \
1054 +(((x)&0x0000FF00)<<8) \
1055 +(((x)&0x00FF0000)>>8) )
1056# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1057# define htovl(x) vtohl(x)
1058# define htovs(x) vtohs(x)
1059# endif
1060 /* otherwise default to functions in util.c */
1061#endif
1062
0f85fab0 1063#ifdef CASTNEGFLOAT
79072805 1064#define U_S(what) ((U16)(what))
0f85fab0 1065#define U_I(what) ((unsigned int)(what))
79072805 1066#define U_L(what) ((U32)(what))
0f85fab0 1067#else
a6e633de 1068# ifdef __cplusplus
1069 extern "C" {
1070# endif
a0d0e21e 1071U32 cast_ulong _((double));
a6e633de 1072# ifdef __cplusplus
1073 }
1074# endif
232e078e
AD		 1075#define U_S(what) ((U16)cast_ulong((double)(what)))
1076#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1077#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW		 1078#endif
1079
ed6116ce
LW		 1080#ifdef CASTI32
1081#define I_32(what) ((I32)(what))
a0d0e21e 1082#define I_V(what) ((IV)(what))
5d94fbed 1083#define U_V(what) ((UV)(what))
ed6116ce 1084#else
a6e633de 1085# ifdef __cplusplus
1086 extern "C" {
1087# endif
a0d0e21e 1088I32 cast_i32 _((double));
a0d0e21e 1089IV cast_iv _((double));
5d94fbed 1090UV cast_uv _((double));
a6e633de 1091# ifdef __cplusplus
1092 }
1093# endif
1094#define I_32(what) (cast_i32((double)(what)))
1095#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1096#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW		 1097#endif
1098
79072805
LW		 1099struct Outrec {
1100 I32 o_lines;
d9d8d8de 1101 char *o_str;
79072805 1102 U32 o_len;
8d063cd8
LW		 1103};
1104
352d5a3a
LW		 1105#ifndef MAXSYSFD
1106# define MAXSYSFD 2
1107#endif
ee0007ab 1108
f82b3d41 1109#ifndef TMPPATH
1110# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1111#endif
79072805
LW		 1112
1113#ifndef __cplusplus
a0d0e21e
LW		 1114Uid_t getuid _((void));
1115Uid_t geteuid _((void));
1116Gid_t getgid _((void));
1117Gid_t getegid _((void));
79072805 1118#endif
8d063cd8
LW		 1119
1120#ifdef DEBUGGING
0c30d9ec 1121#ifndef Perl_debug_log
760ac839 1122#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1123#endif
d96024cf 1124#define YYDEBUG 1
79072805
LW		 1125#define DEB(a) a
1126#define DEBUG(a) if (debug) a
1127#define DEBUG_p(a) if (debug & 1) a
1128#define DEBUG_s(a) if (debug & 2) a
1129#define DEBUG_l(a) if (debug & 4) a
1130#define DEBUG_t(a) if (debug & 8) a
1131#define DEBUG_o(a) if (debug & 16) a
1132#define DEBUG_c(a) if (debug & 32) a
1133#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1134#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805
LW		 1135#define DEBUG_f(a) if (debug & 256) a
1136#define DEBUG_r(a) if (debug & 512) a
1137#define DEBUG_x(a) if (debug & 1024) a
1138#define DEBUG_u(a) if (debug & 2048) a
1139#define DEBUG_L(a) if (debug & 4096) a
1140#define DEBUG_H(a) if (debug & 8192) a
1141#define DEBUG_X(a) if (debug & 16384) a
8990e307 1142#define DEBUG_D(a) if (debug & 32768) a
79072805
LW		 1143#else
1144#define DEB(a)
1145#define DEBUG(a)
1146#define DEBUG_p(a)
1147#define DEBUG_s(a)
1148#define DEBUG_l(a)
1149#define DEBUG_t(a)
1150#define DEBUG_o(a)
1151#define DEBUG_c(a)
1152#define DEBUG_P(a)
1153#define DEBUG_m(a)
1154#define DEBUG_f(a)
1155#define DEBUG_r(a)
1156#define DEBUG_x(a)
1157#define DEBUG_u(a)
1158#define DEBUG_L(a)
1159#define DEBUG_H(a)
1160#define DEBUG_X(a)
8990e307 1161#define DEBUG_D(a)
8d063cd8 1162#endif
fe14fcc3 1163#define YYMAXDEPTH 300
8d063cd8 1164
a6e633de 1165#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW		 1166#define assert(what) DEB( { \
1167 if (!(what)) { \
463ee0b2 1168 croak("Assertion failed: file \"%s\", line %d", \
79072805
LW		 1169 __FILE__, __LINE__); \
1170 exit(1); \
1171 }})
a6e633de 1172#endif
8d063cd8 1173
450a55e4 1174struct ufuncs {
a0d0e21e
LW		 1175 I32 (*uf_val)_((IV, SV*));
1176 I32 (*uf_set)_((IV, SV*));
1177 IV uf_index;
450a55e4
LW		 1178};
1179
fe14fcc3 1180/* Fix these up for __STDC__ */
68dc0745 1181#ifndef DONT_DECLARE_STD
a0d0e21e
LW		 1182char *mktemp _((char*));
1183double atof _((const char*));
1184#endif
79072805 1185
352d5a3a 1186#ifndef STANDARD_C
fe14fcc3 1187/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1188Time_t time();
8d063cd8 1189struct tm *gmtime(), *localtime();
93a17b20 1190char *strchr(), *strrchr();
378cc40b 1191char *strcpy(), *strcat();
352d5a3a 1192#endif /* ! STANDARD_C */
8d063cd8 1193
79072805
LW		 1194
1195#ifdef I_MATH
1196# include <math.h>
1197#else
1198# ifdef __cplusplus
1199 extern "C" {
1200# endif
a0d0e21e 1201 double exp _((double));
a0d0e21e
LW		 1202 double log _((double));
1203 double sqrt _((double));
1204 double modf _((double,double*));
1205 double sin _((double));
1206 double cos _((double));
1207 double atan2 _((double,double));
1208 double pow _((double,double));
79072805
LW		 1209# ifdef __cplusplus
1210 };
1211# endif
1212#endif
1213
a0d0e21e 1214#ifndef __cplusplus
3fc1aec6 1215#ifdef __NeXT__ /* or whatever catches all NeXTs */
1216char *crypt (); /* Maybe more hosts will need the unprototyped version */
1217#else
a0d0e21e 1218char *crypt _((const char*, const char*));
3fc1aec6 1219#endif
68dc0745 1220#ifndef DONT_DECLARE_STD
1e422769 1221#ifndef getenv
a0d0e21e 1222char *getenv _((const char*));
1e422769 1223#endif
a0d0e21e 1224Off_t lseek _((int,Off_t,int));
68dc0745 1225#endif
a0d0e21e
LW		 1226char *getlogin _((void));
1227#endif
79072805 1228
16d20bd9 1229#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1230#define UNLINK unlnk
a0d0e21e 1231I32 unlnk _((char*));
8d063cd8
LW		 1232#else
1233#define UNLINK unlink
1234#endif
a687059c 1235
fe14fcc3 1236#ifndef HAS_SETREUID
85e6fe83
LW		 1237# ifdef HAS_SETRESUID
1238# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1239# define HAS_SETREUID
1240# endif
a687059c 1241#endif
fe14fcc3 1242#ifndef HAS_SETREGID
85e6fe83
LW		 1243# ifdef HAS_SETRESGID
1244# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1245# define HAS_SETREGID
1246# endif
a687059c 1247#endif
ee0007ab 1248
ff68c719 1249typedef Signal_t (*Sighandler_t) _((int));
1250
1251#ifdef HAS_SIGACTION
1252typedef struct sigaction Sigsave_t;
1253#else
1254typedef Sighandler_t Sigsave_t;
1255#endif
1256
ee0007ab
LW		 1257#define SCAN_DEF 0
1258#define SCAN_TR 1
1259#define SCAN_REPL 2
79072805
LW		 1260
1261#ifdef DEBUGGING
4633a7c4 1262# ifndef register
a0d0e21e
LW		 1263# define register
1264# endif
55497cff 1265# ifdef MYMALLOC
1266# ifndef DEBUGGING_MSTATS
1267# define DEBUGGING_MSTATS
1268# endif
1269# endif
a0d0e21e 1270# define PAD_SV(po) pad_sv(po)
79072805 1271#else
a0d0e21e 1272# define PAD_SV(po) curpad[po]
79072805
LW		 1273#endif
1274
1275/****************/
1276/* Truly global */
1277/****************/
1278
1279/* global state */
a0d0e21e 1280EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec 1281/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1282#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1283#ifndef DONT_DECLARE_STD
79072805 1284extern char ** environ; /* environment variables supplied via exec */
68dc0745 1285#endif
0c30d9ec 1286#else
1287# if defined(NeXT) && defined(__DYNAMIC__)
1288
1289# include <mach-o/dyld.h>
1290EXT char *** environ_pointer;
1291# define environ (*environ_pointer)
1292# endif
1293#endif /* environ processing */
1294
79072805
LW		 1295EXT int uid; /* current real user id */
1296EXT int euid; /* current effective user id */
1297EXT int gid; /* current real group id */
1298EXT int egid; /* current effective group id */
1299EXT bool nomemok; /* let malloc context handle nomem */
1300EXT U32 an; /* malloc sequence number */
463ee0b2 1301EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1302EXT U16 op_seqmax; /* op sequence number */
8990e307 1303EXT U32 evalseq; /* eval sequence number */
463ee0b2 1304EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805
LW		 1305EXT char ** origenviron;
1306EXT U32 origalen;
44a8e56a 1307EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1308EXT U32 * profiledata;
84ea024a 1309EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1310EXT char * osname; /* operating system */
ff68c719 1311EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1312
a0d0e21e
LW		 1313EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1314EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW		 1315EXT double * xnv_root; /* free xnv list--shared by interpreters */
1316EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1317EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1318EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1319EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1320EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1321
79072805
LW		 1322/* Stack for currently executing thread--context switch must handle this. */
1323EXT SV ** stack_base; /* stack->array_ary */
1324EXT SV ** stack_sp; /* stack pointer now */
1325EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1326
1327/* likewise for these */
1328
1329EXT OP * op; /* current op--oughta be in a global register */
1330
1331EXT I32 * scopestack; /* blocks we've entered */
1332EXT I32 scopestack_ix;
1333EXT I32 scopestack_max;
1334
1335EXT ANY* savestack; /* to save non-local values on */
1336EXT I32 savestack_ix;
1337EXT I32 savestack_max;
1338
1339EXT OP ** retstack; /* returns we've pushed */
1340EXT I32 retstack_ix;
1341EXT I32 retstack_max;
1342
1343EXT I32 * markstack; /* stackmarks we're remembering */
1344EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1345EXT I32 * markstack_max; /* stackmarks we're remembering */
1346
1347EXT SV ** curpad;
1348
1349/* temp space */
1350EXT SV * Sv;
1351EXT XPV * Xpv;
f82b3d41 1352EXT char buf[2048]; /* should be longer than PATH_MAX */
79072805
LW		 1353EXT char tokenbuf[256];
1354EXT struct stat statbuf;
ecfc5424 1355#ifdef HAS_TIMES
79072805
LW		 1356EXT struct tms timesbuf;
1357#endif
463ee0b2 1358EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW		 1359
1360/* for tmp use in stupid debuggers */
1361EXT int * di;
1362EXT short * ds;
1363EXT char * dc;
1364
1365/* handy constants */
71be2cbc 1366EXTCONST char * Yes INIT("1");
1367EXTCONST char * No INIT("");
1368EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1369EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1370EXTCONST char * vert INIT("|");
79072805 1371
71be2cbc 1372EXTCONST char warn_uninit[]
a0d0e21e 1373 INIT("Use of uninitialized value");
71be2cbc 1374EXTCONST char warn_nosemi[]
463ee0b2 1375 INIT("Semicolon seems to be missing");
71be2cbc 1376EXTCONST char warn_reserved[]
463ee0b2 1377 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1378EXTCONST char warn_nl[]
93a17b20 1379 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1380EXTCONST char no_wrongref[]
a0d0e21e 1381 INIT("Can't use %s ref as %s ref");
71be2cbc 1382EXTCONST char no_symref[]
748a9306 1383 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1384EXTCONST char no_usym[]
8990e307 1385 INIT("Can't use an undefined value as %s reference");
71be2cbc 1386EXTCONST char no_aelem[]
93a17b20 1387 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1388EXTCONST char no_helem[]
93a17b20 1389 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1390EXTCONST char no_modify[]
93a17b20 1391 INIT("Modification of a read-only value attempted");
71be2cbc 1392EXTCONST char no_mem[]
93a17b20 1393 INIT("Out of memory!\n");
71be2cbc 1394EXTCONST char no_security[]
463ee0b2 1395 INIT("Insecure dependency in %s%s");
71be2cbc 1396EXTCONST char no_sock_func[]
93a17b20 1397 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1398EXTCONST char no_dir_func[]
93a17b20 1399 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1400EXTCONST char no_func[]
93a17b20 1401 INIT("The %s function is unimplemented");
71be2cbc 1402EXTCONST char no_myglob[]
748a9306 1403 INIT("\"my\" variable %s can't be in a package");
93a17b20 1404
79072805
LW		 1405EXT SV sv_undef;
1406EXT SV sv_no;
1407EXT SV sv_yes;
1408#ifdef CSH
1409 EXT char * cshname INIT(CSH);
1410 EXT I32 cshlen;
1411#endif
1412
1413#ifdef DOINIT
8e07c86e
AD		 1414EXT char *sig_name[] = { SIG_NAME };
1415EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1416EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1417EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW		 1418#else
1419EXT char *sig_name[];
8e07c86e 1420EXT int sig_num[];
0c30d9ec 1421EXT SV * psig_ptr[];
1422EXT SV * psig_name[];
79072805
LW		 1423#endif
1424
bbce6d69 1425/* fast case folding tables */
1426
79072805 1427#ifdef DOINIT
36477c24 1428EXTCONST unsigned char fold[] = {
79072805
LW		 1429 0, 1, 2, 3, 4, 5, 6, 7,
1430 8, 9, 10, 11, 12, 13, 14, 15,
1431 16, 17, 18, 19, 20, 21, 22, 23,
1432 24, 25, 26, 27, 28, 29, 30, 31,
1433 32, 33, 34, 35, 36, 37, 38, 39,
1434 40, 41, 42, 43, 44, 45, 46, 47,
1435 48, 49, 50, 51, 52, 53, 54, 55,
1436 56, 57, 58, 59, 60, 61, 62, 63,
1437 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1438 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1439 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1440 'x', 'y', 'z', 91, 92, 93, 94, 95,
1441 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1442 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1443 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1444 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1445 128, 129, 130, 131, 132, 133, 134, 135,
1446 136, 137, 138, 139, 140, 141, 142, 143,
1447 144, 145, 146, 147, 148, 149, 150, 151,
1448 152, 153, 154, 155, 156, 157, 158, 159,
1449 160, 161, 162, 163, 164, 165, 166, 167,
1450 168, 169, 170, 171, 172, 173, 174, 175,
1451 176, 177, 178, 179, 180, 181, 182, 183,
1452 184, 185, 186, 187, 188, 189, 190, 191,
1453 192, 193, 194, 195, 196, 197, 198, 199,
1454 200, 201, 202, 203, 204, 205, 206, 207,
1455 208, 209, 210, 211, 212, 213, 214, 215,
1456 216, 217, 218, 219, 220, 221, 222, 223,
1457 224, 225, 226, 227, 228, 229, 230, 231,
1458 232, 233, 234, 235, 236, 237, 238, 239,
1459 240, 241, 242, 243, 244, 245, 246, 247,
1460 248, 249, 250, 251, 252, 253, 254, 255
1461};
1462#else
71be2cbc 1463EXTCONST unsigned char fold[];
79072805
LW		 1464#endif
1465
1466#ifdef DOINIT
bbce6d69 1467EXT unsigned char fold_locale[] = {
1468 0, 1, 2, 3, 4, 5, 6, 7,
1469 8, 9, 10, 11, 12, 13, 14, 15,
1470 16, 17, 18, 19, 20, 21, 22, 23,
1471 24, 25, 26, 27, 28, 29, 30, 31,
1472 32, 33, 34, 35, 36, 37, 38, 39,
1473 40, 41, 42, 43, 44, 45, 46, 47,
1474 48, 49, 50, 51, 52, 53, 54, 55,
1475 56, 57, 58, 59, 60, 61, 62, 63,
1476 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1477 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1478 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1479 'x', 'y', 'z', 91, 92, 93, 94, 95,
1480 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1481 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1482 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1483 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1484 128, 129, 130, 131, 132, 133, 134, 135,
1485 136, 137, 138, 139, 140, 141, 142, 143,
1486 144, 145, 146, 147, 148, 149, 150, 151,
1487 152, 153, 154, 155, 156, 157, 158, 159,
1488 160, 161, 162, 163, 164, 165, 166, 167,
1489 168, 169, 170, 171, 172, 173, 174, 175,
1490 176, 177, 178, 179, 180, 181, 182, 183,
1491 184, 185, 186, 187, 188, 189, 190, 191,
1492 192, 193, 194, 195, 196, 197, 198, 199,
1493 200, 201, 202, 203, 204, 205, 206, 207,
1494 208, 209, 210, 211, 212, 213, 214, 215,
1495 216, 217, 218, 219, 220, 221, 222, 223,
1496 224, 225, 226, 227, 228, 229, 230, 231,
1497 232, 233, 234, 235, 236, 237, 238, 239,
1498 240, 241, 242, 243, 244, 245, 246, 247,
1499 248, 249, 250, 251, 252, 253, 254, 255
1500};
1501#else
1502EXT unsigned char fold_locale[];
1503#endif
1504
1505#ifdef DOINIT
71be2cbc 1506EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 1507 1, 2, 84, 151, 154, 155, 156, 157,
1508 165, 246, 250, 3, 158, 7, 18, 29,
1509 40, 51, 62, 73, 85, 96, 107, 118,
1510 129, 140, 147, 148, 149, 150, 152, 153,
1511 255, 182, 224, 205, 174, 176, 180, 217,
1512 233, 232, 236, 187, 235, 228, 234, 226,
1513 222, 219, 211, 195, 188, 193, 185, 184,
1514 191, 183, 201, 229, 181, 220, 194, 162,
1515 163, 208, 186, 202, 200, 218, 198, 179,
1516 178, 214, 166, 170, 207, 199, 209, 206,
1517 204, 160, 212, 216, 215, 192, 175, 173,
1518 243, 172, 161, 190, 203, 189, 164, 230,
1519 167, 248, 227, 244, 242, 255, 241, 231,
1520 240, 253, 169, 210, 245, 237, 249, 247,
1521 239, 168, 252, 251, 254, 238, 223, 221,
1522 213, 225, 177, 197, 171, 196, 159, 4,
1523 5, 6, 8, 9, 10, 11, 12, 13,
1524 14, 15, 16, 17, 19, 20, 21, 22,
1525 23, 24, 25, 26, 27, 28, 30, 31,
1526 32, 33, 34, 35, 36, 37, 38, 39,
1527 41, 42, 43, 44, 45, 46, 47, 48,
1528 49, 50, 52, 53, 54, 55, 56, 57,
1529 58, 59, 60, 61, 63, 64, 65, 66,
1530 67, 68, 69, 70, 71, 72, 74, 75,
1531 76, 77, 78, 79, 80, 81, 82, 83,
1532 86, 87, 88, 89, 90, 91, 92, 93,
1533 94, 95, 97, 98, 99, 100, 101, 102,
1534 103, 104, 105, 106, 108, 109, 110, 111,
1535 112, 113, 114, 115, 116, 117, 119, 120,
1536 121, 122, 123, 124, 125, 126, 127, 128,
1537 130, 131, 132, 133, 134, 135, 136, 137,
1538 138, 139, 141, 142, 143, 144, 145, 146
1539};
1540#else
71be2cbc 1541EXTCONST unsigned char freq[];
79072805
LW		 1542#endif
1543
8990e307
LW		 1544#ifdef DEBUGGING
1545#ifdef DOINIT
71be2cbc 1546EXTCONST char* block_type[] = {
8990e307
LW		 1547 "NULL",
1548 "SUB",
1549 "EVAL",
1550 "LOOP",
1551 "SUBST",
1552 "BLOCK",
1553};
1554#else
71be2cbc 1555EXTCONST char* block_type[];
8990e307
LW		 1556#endif
1557#endif
1558
79072805
LW		 1559/*****************************************************************************/
1560/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1561/*****************************************************************************/
8990e307 1562/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1563
a0d0e21e
LW		 1564#include "perly.h"
1565
79072805
LW		 1566typedef enum {
1567 XOPERATOR,
1568 XTERM,
79072805 1569 XREF,
8990e307 1570 XSTATE,
a0d0e21e
LW		 1571 XBLOCK,
1572 XTERMBLOCK
79072805
LW		 1573} expectation;
1574
a0d0e21e
LW		 1575EXT U32 lex_state; /* next token is determined */
1576EXT U32 lex_defer; /* state after determined token */
1577EXT expectation lex_expect; /* expect after determined token */
1578EXT I32 lex_brackets; /* bracket count */
1579EXT I32 lex_formbrack; /* bracket count at outer format level */
1580EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1581EXT I32 lex_casemods; /* casemod count */
1582EXT I32 lex_dojoin; /* doing an array interpolation */
1583EXT I32 lex_starts; /* how many interps done on level */
1584EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1585EXT SV * lex_repl; /* runtime replacement from s/// */
1586EXT OP * lex_op; /* extra info to pass back on op */
1587EXT OP * lex_inpat; /* in pattern $) and $| are special */
1588EXT I32 lex_inwhat; /* what kind of quoting are we in */
1589EXT char * lex_brackstack; /* what kind of brackets to pop */
1590EXT char * lex_casestack; /* what kind of case mods in effect */
1591
1592/* What we know when we're in LEX_KNOWNEXT state. */
1593EXT YYSTYPE nextval[5]; /* value of next token, if any */
1594EXT I32 nexttype[5]; /* type of next token */
1595EXT I32 nexttoke;
1596
760ac839 1597EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW		 1598EXT SV * linestr;
1599EXT char * bufptr;
1600EXT char * oldbufptr;
1601EXT char * oldoldbufptr;
1602EXT char * bufend;
8990e307 1603EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1604EXT AV * rsfp_filters;
79072805
LW		 1605
1606EXT I32 multi_start; /* 1st line of multi-line string */
1607EXT I32 multi_end; /* last line of multi-line string */
1608EXT I32 multi_open; /* delimiter of said string */
1609EXT I32 multi_close; /* delimiter of said string */
1610
1611EXT GV * scrgv;
1612EXT I32 error_count; /* how many errors so far, max 10 */
1613EXT I32 subline; /* line this subroutine began on */
1614EXT SV * subname; /* name of current subroutine */
1615
748a9306 1616EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1617EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW		 1618EXT AV * comppad_name; /* variable names for "my" variables */
1619EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1620EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW		 1621EXT I32 min_intro_pending;/* start of vars to introduce */
1622EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1623EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1624EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1625EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW		 1626EXT COP compiling;
1627
79072805
LW		 1628EXT I32 thisexpr; /* name id for nothing_in_common() */
1629EXT char * last_uni; /* position of last named-unary operator */
1630EXT char * last_lop; /* position of last list operator */
8990e307 1631EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1632EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW		 1633#ifdef FCRYPT
1634EXT I32 cryptseen; /* has fast crypt() been initialized? */
1635#endif
1636
85e6fe83
LW		 1637EXT U32 hints; /* various compilation flags */
1638
1639 /* Note: the lowest 8 bits are reserved for
1640 stuffing into op->op_private */
1641#define HINT_INTEGER 0x00000001
1642#define HINT_STRICT_REFS 0x00000002
1643
1644#define HINT_BLOCK_SCOPE 0x00000100
1645#define HINT_STRICT_SUBS 0x00000200
1646#define HINT_STRICT_VARS 0x00000400
bbce6d69 1647#define HINT_LOCALE 0x00000800
85e6fe83 1648
79072805
LW		 1649/**************************************************************************/
1650/* This regexp stuff is global since it always happens within 1 expr eval */
1651/**************************************************************************/
1652
1653EXT char * regprecomp; /* uncompiled string. */
1654EXT char * regparse; /* Input-scan pointer. */
1655EXT char * regxend; /* End of input for compile */
1656EXT I32 regnpar; /* () count. */
1657EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1658EXT I32 regsize; /* Code size. */
a0d0e21e 1659EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW		 1660EXT I32 regsawback; /* Did we see \1, ...? */
1661
1662EXT char * reginput; /* String-input pointer. */
79072805
LW		 1663EXT char * regbol; /* Beginning of input, for ^ check. */
1664EXT char * regeol; /* End of input, for $ check. */
1665EXT char ** regstartp; /* Pointer to startp array. */
1666EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1667EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1668EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW		 1669EXT U16 regflags; /* are we folding, multilining? */
1670EXT char regprev; /* char before regbol, \n if none */
79072805 1671
760ac839
LW		 1672EXT bool do_undump; /* -u or dump seen? */
1673EXT VOL U32 debug;
1674
79072805
LW		 1675/***********************************************/
1676/* Global only to current interpreter instance */
1677/***********************************************/
1678
8990e307 1679#ifdef MULTIPLICITY
79072805
LW		 1680#define IEXT
1681#define IINIT(x)
1682struct interpreter {
1683#else
1684#define IEXT EXT
1685#define IINIT(x) INIT(x)
1686#endif
1687
1688/* pseudo environmental stuff */
1689IEXT int Iorigargc;
1690IEXT char ** Iorigargv;
1691IEXT GV * Ienvgv;
1692IEXT GV * Isiggv;
1693IEXT GV * Iincgv;
1694IEXT char * Iorigfilename;
748a9306
LW		 1695IEXT SV * Idiehook;
1696IEXT SV * Iwarnhook;
1697IEXT SV * Iparsehook;
79072805 1698
c07a80fd 1699/* Various states of an input record separator SV (rs, nrs) */
1700#define RsSNARF(sv) (! SvOK(sv))
1701#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1702#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1703
79072805
LW		 1704/* switches */
1705IEXT char * Icddir;
1706IEXT bool Iminus_c;
a5f75d66 1707IEXT char Ipatchlevel[10];
728e2803 1708IEXT char ** Ilocalpatches;
c07a80fd 1709IEXT SV * Inrs;
2304df62 1710IEXT char * Isplitstr IINIT(" ");
79072805
LW		 1711IEXT bool Ipreprocess;
1712IEXT bool Iminus_n;
1713IEXT bool Iminus_p;
1714IEXT bool Iminus_l;
1715IEXT bool Iminus_a;
2304df62 1716IEXT bool Iminus_F;
79072805
LW		 1717IEXT bool Idoswitches;
1718IEXT bool Idowarn;
1719IEXT bool Idoextract;
79072805
LW		 1720IEXT bool Isawampersand; /* must save all match strings */
1721IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805
LW		 1722IEXT bool Isawvec;
1723IEXT bool Iunsafe;
79072805
LW		 1724IEXT char * Iinplace;
1725IEXT char * Ie_tmpname;
760ac839 1726IEXT PerlIO * Ie_fp;
79072805 1727IEXT U32 Iperldb;
748a9306 1728 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1729IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805
LW		 1730
1731/* magical thingies */
85e6fe83 1732IEXT Time_t Ibasetime; /* $^T */
79072805
LW		 1733IEXT SV * Iformfeed; /* $^L */
1734IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1735IEXT SV * Irs; /* $/ */
79072805 1736IEXT char * Iofs; /* $, */
8990e307 1737IEXT STRLEN Iofslen;
79072805 1738IEXT char * Iors; /* $\ */
8990e307 1739IEXT STRLEN Iorslen;
79072805
LW		 1740IEXT char * Iofmt; /* $# */
1741IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1742IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1743IEXT I32 Istatusvalue; /* $? */
f86702cc 1744#ifdef VMS
ff0cee69 1745IEXT U32 Istatusvalue_vms;
f86702cc 1746#endif
79072805
LW		 1747
1748IEXT struct stat Istatcache; /* _ */
1749IEXT GV * Istatgv;
1750IEXT SV * Istatname IINIT(Nullsv);
1751
1752/* shortcuts to various I/O objects */
1753IEXT GV * Istdingv;
1754IEXT GV * Ilast_in_gv;
1755IEXT GV * Idefgv;
1756IEXT GV * Iargvgv;
1757IEXT GV * Idefoutgv;
79072805
LW		 1758IEXT GV * Iargvoutgv;
1759
1760/* shortcuts to regexp stuff */
1761IEXT GV * Ileftgv;
1762IEXT GV * Iampergv;
1763IEXT GV * Irightgv;
1764IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805
LW		 1765IEXT I32 * Iscreamfirst;
1766IEXT I32 * Iscreamnext;
1767IEXT I32 Imaxscream IINIT(-1);
1768IEXT SV * Ilastscream;
1769
4633a7c4
LW		 1770/* shortcuts to misc objects */
1771IEXT GV * Ierrgv;
1772
79072805
LW		 1773/* shortcuts to debugging objects */
1774IEXT GV * IDBgv;
1775IEXT GV * IDBline;
1776IEXT GV * IDBsub;
1777IEXT SV * IDBsingle;
1778IEXT SV * IDBtrace;
1779IEXT SV * IDBsignal;
1780IEXT AV * Ilineary; /* lines of script for debugger */
1781IEXT AV * Idbargs; /* args to call listed by caller function */
1782
1783/* symbol tables */
1784IEXT HV * Idefstash; /* main symbol table */
1785IEXT HV * Icurstash; /* symbol table for current package */
1786IEXT HV * Idebstash; /* symbol table for perldb package */
1787IEXT SV * Icurstname; /* name of current package */
93a17b20
LW		 1788IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1789IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1790IEXT HV * Istrtab; /* shared string table */
79072805
LW		 1791
1792/* memory management */
79072805
LW		 1793IEXT SV ** Itmps_stack;
1794IEXT I32 Itmps_ix IINIT(-1);
1795IEXT I32 Itmps_floor IINIT(-1);
8990e307
LW		 1796IEXT I32 Itmps_max;
1797IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1798IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307
LW		 1799IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1800IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805
LW		 1801
1802/* funky return mechanisms */
1803IEXT I32 Ilastspbase;
1804IEXT I32 Ilastsize;
1805IEXT int Iforkprocess; /* so do_open |- can return proc# */
1806
1807/* subprocess state */
1808IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805
LW		 1809
1810/* internal state */
463ee0b2
LW		 1811IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1812IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1813IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1814IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1815IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1816IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1817IEXT bool Itainting; /* doing taint checks */
e50aee73 1818IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805
LW		 1819
1820/* trace state */
1821IEXT I32 Idlevel;
1822IEXT I32 Idlmax IINIT(128);
1823IEXT char * Idebname;
1824IEXT char * Idebdelim;
1825
1826/* current interpreter roots */
748a9306 1827IEXT CV * Imain_cv;
463ee0b2
LW		 1828IEXT OP * Imain_root;
1829IEXT OP * Imain_start;
1830IEXT OP * Ieval_root;
1831IEXT OP * Ieval_start;
79072805
LW		 1832
1833/* runtime control stuff */
1834IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1835IEXT COP * Icurcopdb IINIT(NULL);
79072805
LW		 1836IEXT line_t Icopline IINIT(NOLINE);
1837IEXT CONTEXT * Icxstack;
1838IEXT I32 Icxstack_ix IINIT(-1);
1839IEXT I32 Icxstack_max IINIT(128);
54310121 1840IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1841IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1842IEXT I32 Irunlevel;
79072805
LW		 1843
1844/* stack stuff */
0c30d9ec 1845IEXT AV * Icurstack; /* THE STACK */
79072805
LW		 1846IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1847IEXT SV ** Imystack_base; /* stack->array_ary */
1848IEXT SV ** Imystack_sp; /* stack pointer now */
1849IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1850
1851/* format accumulators */
463ee0b2
LW		 1852IEXT SV * Iformtarget;
1853IEXT SV * Ibodytarget;
1854IEXT SV * Itoptarget;
79072805
LW		 1855
1856/* statics moved here for shared library purposes */
93a17b20 1857IEXT SV Istrchop; /* return value from chop */
79072805
LW		 1858IEXT int Ifilemode; /* so nextargv() can preserve mode */
1859IEXT int Ilastfd; /* what to preserve mode on */
1860IEXT char * Ioldname; /* what to preserve mode on */
1861IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1862IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1863IEXT OP * Isortcop; /* user defined sort routine */
1864IEXT HV * Isortstash; /* which is in some package or other */
1865IEXT GV * Ifirstgv; /* $a */
1866IEXT GV * Isecondgv; /* $b */
1867IEXT AV * Isortstack; /* temp stack during pp_sort() */
1868IEXT AV * Isignalstack; /* temp stack during sighandler() */
1869IEXT SV * Imystrk; /* temp key string for do_each() */
1870IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805
LW		 1871IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1872IEXT I32 Igensym; /* next symbol for getsym() to define */
1873IEXT bool Ipreambled;
3c81428c 1874IEXT AV * Ipreambleav;
79072805
LW		 1875IEXT int Ilaststatval IINIT(-1);
1876IEXT I32 Ilaststype IINIT(OP_STAT);
1877
1878#undef IEXT
1879#undef IINIT
1880
8990e307 1881#ifdef MULTIPLICITY
79072805
LW		 1882};
1883#else
1884struct interpreter {
1885 char broiled;
1886};
1887#endif
1888
1889#include "pp.h"
1890
1891#ifdef __cplusplus
1892extern "C" {
1893#endif
1894
1895#include "proto.h"
1896
a0d0e21e
LW		 1897#ifdef EMBED
1898#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1899#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1900#else
1901#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1902#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1903#endif
1904
79072805
LW		 1905#ifdef __cplusplus
1906};
1907#endif
1908
93a17b20 1909/* The following must follow proto.h */
79072805
LW		 1910
1911#ifdef DOINIT
bbce6d69 1912
4633a7c4 1913EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW		 1914 magic_set,
1915 magic_len,
1916 0, 0};
4633a7c4
LW		 1917EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1918EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW		 1919 0, magic_clearenv,
1920 0};
4633a7c4 1921EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1922EXT MGVTBL vtbl_sigelem = {magic_getsig,
1923 magic_setsig,
1924 0, magic_clearsig,
1925 0};
4633a7c4 1926EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1927 0};
4633a7c4 1928EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW		 1929 magic_setpack,
1930 0, magic_clearpack,
1931 0};
4633a7c4 1932EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1933 0, 0, 0};
4633a7c4 1934EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1935 0, 0, 0};
4633a7c4 1936EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1937 0, 0, 0};
4633a7c4 1938EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2
LW		 1939 magic_setarylen,
1940 0, 0, 0};
4633a7c4 1941EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW		 1942 magic_setglob,
1943 0, 0, 0};
4633a7c4 1944EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1945 0, 0, 0};
99abf803 1946EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1947 0, 0, 0};
4633a7c4 1948EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1949 0, 0, 0};
4633a7c4 1950EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1951 0, 0, 0};
4633a7c4 1952EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1953 0, 0, 0};
4633a7c4 1954EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW		 1955 magic_setpos,
1956 0, 0, 0};
4633a7c4 1957EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1958 0, 0, 0};
55497cff 1959EXT MGVTBL vtbl_fm = {0, magic_setfm,
1960 0, 0, 0};
4633a7c4 1961EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW		 1962 magic_setuvar,
1963 0, 0, 0};
68dc0745 1964EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
1965 0, 0, magic_freedefelem};
a0d0e21e 1966
36477c24 1967#ifdef USE_LOCALE_COLLATE
bbce6d69 1968EXT MGVTBL vtbl_collxfrm = {0,
1969 magic_setcollxfrm,
1970 0, 0, 0};
1971#endif
1972
a0d0e21e 1973#ifdef OVERLOAD
4633a7c4 1974EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1975 0, 0, magic_setamagic};
4633a7c4 1976EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1977 0, 0, magic_setamagic};
a0d0e21e
LW		 1978#endif /* OVERLOAD */
1979
bbce6d69 1980#else /* !DOINIT */
1981
79072805
LW		 1982EXT MGVTBL vtbl_sv;
1983EXT MGVTBL vtbl_env;
1984EXT MGVTBL vtbl_envelem;
1985EXT MGVTBL vtbl_sig;
1986EXT MGVTBL vtbl_sigelem;
463ee0b2
LW		 1987EXT MGVTBL vtbl_pack;
1988EXT MGVTBL vtbl_packelem;
79072805 1989EXT MGVTBL vtbl_dbline;
463ee0b2
LW		 1990EXT MGVTBL vtbl_isa;
1991EXT MGVTBL vtbl_isaelem;
79072805
LW		 1992EXT MGVTBL vtbl_arylen;
1993EXT MGVTBL vtbl_glob;
93a17b20 1994EXT MGVTBL vtbl_mglob;
99abf803 1995EXT MGVTBL vtbl_nkeys;
463ee0b2 1996EXT MGVTBL vtbl_taint;
79072805
LW		 1997EXT MGVTBL vtbl_substr;
1998EXT MGVTBL vtbl_vec;
a0d0e21e 1999EXT MGVTBL vtbl_pos;
79072805 2000EXT MGVTBL vtbl_bm;
55497cff 2001EXT MGVTBL vtbl_fm;
79072805 2002EXT MGVTBL vtbl_uvar;
68dc0745 2003EXT MGVTBL vtbl_defelem;
a0d0e21e 2004
36477c24 2005#ifdef USE_LOCALE_COLLATE
bbce6d69 2006EXT MGVTBL vtbl_collxfrm;
2007#endif
2008
a0d0e21e
LW		 2009#ifdef OVERLOAD
2010EXT MGVTBL vtbl_amagic;
2011EXT MGVTBL vtbl_amagicelem;
2012#endif /* OVERLOAD */
2013
bbce6d69 2014#endif /* !DOINIT */
85e6fe83 2015
a0d0e21e 2016#ifdef OVERLOAD
c0315cdf 2017
a0d0e21e
LW		 2018EXT long amagic_generation;
2019
a6006777 2020#define NofAMmeth 58
a0d0e21e 2021#ifdef DOINIT
a6006777 2022EXTCONST char * AMG_names[NofAMmeth] = {
2023 "fallback", "abs", /* "fallback" should be the first. */
2024 "bool", "nomethod",
2025 "\"\"", "0+",
2026 "+", "+=",
2027 "-", "-=",
2028 "*", "*=",
2029 "/", "/=",
2030 "%", "%=",
2031 "**", "**=",
2032 "<<", "<<=",
2033 ">>", ">>=",
2034 "&", "&=",
2035 "|", "|=",
2036 "^", "^=",
2037 "<", "<=",
2038 ">", ">=",
2039 "==", "!=",
2040 "<=>", "cmp",
2041 "lt", "le",
2042 "gt", "ge",
2043 "eq", "ne",
2044 "!", "~",
2045 "++", "--",
2046 "atan2", "cos",
2047 "sin", "exp",
2048 "log", "sqrt",
2049 "x", "x=",
2050 ".", ".=",
2051 "=", "neg"
a0d0e21e
LW		 2052};
2053#else
a6006777 2054EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW		 2055#endif /* def INITAMAGIC */
2056
a6006777 2057struct am_table {
a0d0e21e
LW		 2058 long was_ok_sub;
2059 long was_ok_am;
a6006777 2060 U32 flags;
2061 CV* table[NofAMmeth];
a0d0e21e
LW		 2062 long fallback;
2063};
a6006777 2064struct am_table_short {
2065 long was_ok_sub;
2066 long was_ok_am;
2067 U32 flags;
2068};
a0d0e21e 2069typedef struct am_table AMT;
a6006777 2070typedef struct am_table_short AMTS;
a0d0e21e
LW		 2071
2072#define AMGfallNEVER 1
2073#define AMGfallNO 2
2074#define AMGfallYES 3
2075
a6006777 2076#define AMTf_AMAGIC 1
2077#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2078#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2079#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2080
a0d0e21e
LW		 2081enum {
2082 fallback_amg, abs_amg,
2083 bool__amg, nomethod_amg,
2084 string_amg, numer_amg,
2085 add_amg, add_ass_amg,
2086 subtr_amg, subtr_ass_amg,
2087 mult_amg, mult_ass_amg,
2088 div_amg, div_ass_amg,
2089 mod_amg, mod_ass_amg,
2090 pow_amg, pow_ass_amg,
2091 lshift_amg, lshift_ass_amg,
2092 rshift_amg, rshift_ass_amg,
748a9306
LW		 2093 band_amg, band_ass_amg,
2094 bor_amg, bor_ass_amg,
2095 bxor_amg, bxor_ass_amg,
a0d0e21e
LW		 2096 lt_amg, le_amg,
2097 gt_amg, ge_amg,
2098 eq_amg, ne_amg,
2099 ncmp_amg, scmp_amg,
2100 slt_amg, sle_amg,
2101 sgt_amg, sge_amg,
2102 seq_amg, sne_amg,
a0d0e21e
LW		 2103 not_amg, compl_amg,
2104 inc_amg, dec_amg,
2105 atan2_amg, cos_amg,
2106 sin_amg, exp_amg,
2107 log_amg, sqrt_amg,
2108 repeat_amg, repeat_ass_amg,
748a9306
LW		 2109 concat_amg, concat_ass_amg,
2110 copy_amg, neg_amg
a0d0e21e 2111};
c0315cdf
JH		 2112
2113/*
2114 * some compilers like to redefine cos et alia as faster
2115 * (and less accurate?) versions called F_cos et cetera (Quidquid
2116 * latine dictum sit, altum viditur.) This trick collides with
2117 * the Perl overloading (amg). The following #defines fool both.
2118 */
2119
2120#ifdef _FASTMATH
2121# ifdef atan2
2122# define F_atan2_amg atan2_amg
2123# endif
2124# ifdef cos
2125# define F_cos_amg cos_amg
2126# endif
2127# ifdef exp
2128# define F_exp_amg exp_amg
2129# endif
2130# ifdef log
2131# define F_log_amg log_amg
2132# endif
2133# ifdef pow
2134# define F_pow_amg pow_amg
2135# endif
2136# ifdef sin
2137# define F_sin_amg sin_amg
2138# endif
2139# ifdef sqrt
2140# define F_sqrt_amg sqrt_amg
2141# endif
2142#endif /* _FASTMATH */
2143
a0d0e21e 2144#endif /* OVERLOAD */
36477c24 2145
2146#ifdef USE_LOCALE_COLLATE
bbce6d69 2147EXT U32 collation_ix; /* Collation generation index */
2148EXT char * collation_name; /* Name of current collation */
2149EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2150EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2151EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2152#endif /* USE_LOCALE_COLLATE */
bbce6d69 2153
36477c24 2154#ifdef USE_LOCALE_NUMERIC
bbce6d69 2155
2156EXT char * numeric_name; /* Name of current numeric locale */
2157EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2158EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2159
36477c24 2160#define SET_NUMERIC_STANDARD() \
2161 STMT_START { \
2162 if (! numeric_standard) \
2163 perl_set_numeric_standard(); \
2164 } STMT_END
2165
2166#define SET_NUMERIC_LOCAL() \
2167 STMT_START { \
2168 if (! numeric_local) \
2169 perl_set_numeric_local(); \
2170 } STMT_END
bbce6d69 2171
36477c24 2172#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2173
36477c24 2174#define SET_NUMERIC_STANDARD() /**/
2175#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2176
36477c24 2177#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2178
760ac839
LW		 2179#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2180/*
2181 * Now we have __attribute__ out of the way
2182 * Remap printf
2183 */
2184#define printf PerlIO_stdoutf
2185#endif
2186
85e6fe83 2187#endif /* Include guard */
a6e633de 2188
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