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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))
169d69b2 40# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
728e2803 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
ee0007ab 307#else
fc36a67e 308# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 309#endif /* HAS_MEMSET */
310
85e6fe83 311#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 312# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 313# define memmove(d,s,l) bcopy(s,d,l)
314# else
2304df62 315# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805
LW		 316# define memmove(d,s,l) memcpy(d,s,l)
317# else
318# define memmove(d,s,l) my_bcopy(s,d,l)
319# endif
320# endif
d9d8d8de 321#endif
378cc40b 322
36477c24 323#if defined(mips) && defined(ultrix) && !defined(__STDC__)
324# undef HAS_MEMCMP
325#endif
326
327#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
328# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
329# ifndef memcmp
330 extern int memcmp _((char*, char*, int));
331# endif
332# endif
333# ifdef BUGGY_MSC
334 # pragma function(memcmp)
335# endif
336#else
337# ifndef memcmp
338# define memcmp my_memcmp
339# endif
340#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
341
fc36a67e 342#ifndef memzero
c635e13b 343# ifdef HAS_MEMSET
344# define memzero(d,l) memset(d,0,l)
fc36a67e 345# else
c635e13b 346# ifdef HAS_BZERO
347# define memzero(d,l) bzero(d,l)
fc36a67e 348# else
349# define memzero(d,l) my_bzero(d,l)
350# endif
351# endif
352#endif
353
36477c24 354#ifndef HAS_BCMP
355# ifndef bcmp
356# define bcmp(s1,s2,l) memcmp(s1,s2,l)
357# endif
358#endif /* !HAS_BCMP */
359
ae986130 360#ifdef I_NETINET_IN
79072805 361# include <netinet/in.h>
ae986130
LW		 362#endif
363
1aef975c 364#ifdef I_SYS_STAT
8d063cd8 365#include <sys/stat.h>
1aef975c 366#endif
79072805 367
a0d0e21e
LW		 368/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
369 like UTekV) are broken, sometimes giving false positives. Undefine
370 them here and let the code below set them to proper values.
371
372 The ghs macro stands for GreenHills Software C-1.8.5 which
373 is the C compiler for sysV88 and the various derivatives.
374 This header file bug is corrected in gcc-2.5.8 and later versions.
375 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
376
377#if defined(uts) || (defined(m88k) && defined(ghs))
79072805
LW		 378# undef S_ISDIR
379# undef S_ISCHR
380# undef S_ISBLK
381# undef S_ISREG
382# undef S_ISFIFO
383# undef S_ISLNK
ee0007ab 384#endif
135863df 385
663a0e37
LW		 386#ifdef I_TIME
387# include <time.h>
ffed7fef 388#endif
663a0e37 389
fe14fcc3 390#ifdef I_SYS_TIME
85e6fe83 391# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 392# define KERNEL
393# endif
394# include <sys/time.h>
85e6fe83 395# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 396# undef KERNEL
397# endif
a687059c 398#endif
135863df 399
55497cff 400#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 401# include <sys/times.h>
d9d8d8de 402#endif
8d063cd8 403
fe14fcc3 404#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 405# undef HAS_STRERROR
663a0e37
LW		 406#endif
407
a0d0e21e
LW		 408#ifndef HAS_MKFIFO
409# ifndef mkfifo
410# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
411# endif
412#endif /* !HAS_MKFIFO */
413
663a0e37 414#include <errno.h>
ed6116ce 415#ifdef HAS_SOCKET
85e6fe83 416# ifdef I_NET_ERRNO
ed6116ce
LW		 417# include <net/errno.h>
418# endif
419#endif
f86702cc 420
421#ifdef VMS
422# define SETERRNO(errcode,vmserrcode) \
423 STMT_START { \
424 set_errno(errcode); \
425 set_vaxc_errno(vmserrcode); \
426 } STMT_END
748a9306 427#else
f86702cc 428# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 429#endif
ed6116ce 430
55497cff 431#ifndef errno
79072805 432 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 433#endif
663a0e37 434
2304df62 435#ifdef HAS_STRERROR
a0d0e21e
LW		 436# ifdef VMS
437 char *strerror _((int,...));
438# else
68dc0745 439#ifndef DONT_DECLARE_STD
a0d0e21e 440 char *strerror _((int));
68dc0745 441#endif
a0d0e21e 442# endif
2304df62
AD		 443# ifndef Strerror
444# define Strerror strerror
445# endif
446#else
447# ifdef HAS_SYS_ERRLIST
79072805
LW		 448 extern int sys_nerr;
449 extern char *sys_errlist[];
2304df62
AD		 450# ifndef Strerror
451# define Strerror(e) \
79072805 452 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 453# endif
79072805 454# endif
35c8bce7 455#endif
663a0e37 456
2304df62 457#ifdef I_SYS_IOCTL
79072805
LW		 458# ifndef _IOCTL_
459# include <sys/ioctl.h>
460# endif
a687059c
LW		 461#endif
462
ee0007ab 463#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 464# ifdef HAS_SOCKETPAIR
465# undef HAS_SOCKETPAIR
466# endif
2304df62
AD		 467# ifdef I_NDBM
468# undef I_NDBM
79072805 469# endif
a687059c
LW		 470#endif
471
a687059c 472#if INTSIZE == 2
79072805
LW		 473# define htoni htons
474# define ntohi ntohs
a687059c 475#else
79072805
LW		 476# define htoni htonl
477# define ntohi ntohl
a687059c
LW		 478#endif
479
a0d0e21e 480/* Configure already sets Direntry_t */
35c8bce7 481#if defined(I_DIRENT)
663a0e37 482# include <dirent.h>
a0d0e21e
LW		 483# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
484# include <sys/dir.h>
485# endif
ae986130 486#else
fe14fcc3 487# ifdef I_SYS_NDIR
79a0689e 488# include <sys/ndir.h>
663a0e37 489# else
fe14fcc3 490# ifdef I_SYS_DIR
79a0689e
LW		 491# ifdef hp9000s500
492# include <ndir.h> /* may be wrong in the future */
493# else
494# include <sys/dir.h>
495# endif
663a0e37
LW		 496# endif
497# endif
4633a7c4 498#endif
a687059c 499
352d5a3a
LW		 500#ifdef FPUTS_BOTCH
501/* work around botch in SunOS 4.0.1 and 4.0.2 */
502# ifndef fputs
79072805 503# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW		 504# endif
505#endif
506
c623bd54
LW		 507/*
508 * The following gobbledygook brought to you on behalf of __STDC__.
509 * (I could just use #ifndef __STDC__, but this is more bulletproof
510 * in the face of half-implementations.)
511 */
512
513#ifndef S_IFMT
514# ifdef _S_IFMT
515# define S_IFMT _S_IFMT
516# else
517# define S_IFMT 0170000
518# endif
519#endif
520
521#ifndef S_ISDIR
522# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
523#endif
524
525#ifndef S_ISCHR
526# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
527#endif
528
529#ifndef S_ISBLK
fe14fcc3
LW		 530# ifdef S_IFBLK
531# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
532# else
533# define S_ISBLK(m) (0)
534# endif
c623bd54
LW		 535#endif
536
537#ifndef S_ISREG
538# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
539#endif
540
541#ifndef S_ISFIFO
fe14fcc3
LW		 542# ifdef S_IFIFO
543# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
544# else
545# define S_ISFIFO(m) (0)
546# endif
c623bd54
LW		 547#endif
548
549#ifndef S_ISLNK
550# ifdef _S_ISLNK
551# define S_ISLNK(m) _S_ISLNK(m)
552# else
553# ifdef _S_IFLNK
554# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
555# else
556# ifdef S_IFLNK
557# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
558# else
559# define S_ISLNK(m) (0)
560# endif
561# endif
562# endif
563#endif
564
565#ifndef S_ISSOCK
566# ifdef _S_ISSOCK
567# define S_ISSOCK(m) _S_ISSOCK(m)
568# else
569# ifdef _S_IFSOCK
570# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
571# else
572# ifdef S_IFSOCK
573# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
574# else
575# define S_ISSOCK(m) (0)
576# endif
577# endif
578# endif
579#endif
580
581#ifndef S_IRUSR
582# ifdef S_IREAD
583# define S_IRUSR S_IREAD
584# define S_IWUSR S_IWRITE
585# define S_IXUSR S_IEXEC
586# else
587# define S_IRUSR 0400
588# define S_IWUSR 0200
589# define S_IXUSR 0100
590# endif
591# define S_IRGRP (S_IRUSR>>3)
592# define S_IWGRP (S_IWUSR>>3)
593# define S_IXGRP (S_IXUSR>>3)
594# define S_IROTH (S_IRUSR>>6)
595# define S_IWOTH (S_IWUSR>>6)
596# define S_IXOTH (S_IXUSR>>6)
597#endif
598
599#ifndef S_ISUID
600# define S_ISUID 04000
601#endif
602
603#ifndef S_ISGID
604# define S_ISGID 02000
605#endif
606
79072805
LW		 607#ifdef ff_next
608# undef ff_next
352d5a3a
LW		 609#endif
610
a0d0e21e 611#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 612# define SLOPPYDIVIDE
613#endif
614
748a9306
LW		 615#ifdef UV
616#undef UV
617#endif
618
27d4fb96 619/* XXX QUAD stuff is not currently supported on most systems.
620 Specifically, perl internals don't support long long. Among
621 the many problems is that some compilers support long long,
622 but the underlying library functions (such as sprintf) don't.
623 Some things do work (such as quad pack/unpack on convex);
624 also some systems use long long for the fpos_t typedef. That
625 seems to work too.
626
627 The IV type is supposed to be long enough to hold any integral
628 value or a pointer.
629 --Andy Dougherty August 1996
630*/
631
f86702cc 632#ifdef cray
633# define Quad_t int
634#else
635# ifdef convex
636# define Quad_t long long
45d8adaa 637# else
ff0cee69 638# if BYTEORDER > 0xFFFF
639# define Quad_t long
45d8adaa
LW		 640# endif
641# endif
f86702cc 642#endif
643
644#ifdef Quad_t
645# define HAS_QUAD
748a9306
LW		 646 typedef Quad_t IV;
647 typedef unsigned Quad_t UV;
27d4fb96 648# define IV_MAX PERL_QUAD_MAX
649# define IV_MIN PERL_QUAD_MIN
650# define UV_MAX PERL_UQUAD_MAX
651# define UV_MIN PERL_UQUAD_MIN
79072805 652#else
748a9306
LW		 653 typedef long IV;
654 typedef unsigned long UV;
27d4fb96 655# define IV_MAX PERL_LONG_MAX
656# define IV_MIN PERL_LONG_MIN
657# define UV_MAX PERL_ULONG_MAX
658# define UV_MIN PERL_ULONG_MIN
79072805
LW		 659#endif
660
760ac839
LW		 661/* Previously these definitions used hardcoded figures.
662 * It is hoped these formula are more portable, although
663 * no data one way or another is presently known to me.
664 * The "PERL_" names are used because these calculated constants
665 * do not meet the ANSI requirements for LONG_MAX, etc., which
666 * need to be constants acceptable to #if - kja
667 * define PERL_LONG_MAX 2147483647L
668 * define PERL_LONG_MIN (-LONG_MAX - 1)
669 * define PERL ULONG_MAX 4294967295L
670 */
671
672#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
673# include <limits.h>
674#else
675#ifdef I_VALUES
676# include <values.h>
677#endif
678#endif
679
99abf803 680/*
681 * Try to figure out max and min values for the integral types. THE CORRECT
682 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
683 * following hacks are used if neither limits.h or values.h provide them:
684 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
685 * for types < int: (unsigned TYPE)~(unsigned)0
686 * The argument to ~ must be unsigned so that later signed->unsigned
687 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
688 * and it must not be smaller than int because ~ does integral promotion.
689 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
690 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
691 * The latter is a hack which happens to work on some machines but
692 * does *not* catch any random system, or things like integer types
693 * with NaN if that is possible.
694 *
695 * All of the types are explicitly cast to prevent accidental loss of
696 * numeric range, and in the hope that they will be less likely to confuse
697 * over-eager optimizers.
698 *
699 */
27d4fb96 700
99abf803 701#define PERL_UCHAR_MIN ((unsigned char)0)
702
703#ifdef UCHAR_MAX
704# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 705#else
99abf803 706# ifdef MAXUCHAR
707# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 708# else
99abf803 709# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 710# endif
711#endif
99abf803 712
713/*
714 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
715 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
716 * depending on local options. Until Configure detects this (or at least
717 * detects whether the "signed" keyword is available) the CHAR ranges
718 * will not be included. UCHAR functions normally.
719 * - kja
720 */
27d4fb96 721
99abf803 722#define PERL_USHORT_MIN ((unsigned short)0)
723
724#ifdef USHORT_MAX
725# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 726#else
99abf803 727# ifdef MAXUSHORT
728# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 729# else
99abf803 730# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 731# endif
732#endif
733
27d4fb96 734#ifdef SHORT_MAX
99abf803 735# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 736#else
737# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 738# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 739# else
99abf803 740# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 741# endif
742#endif
743
744#ifdef SHORT_MIN
99abf803 745# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 746#else
747# ifdef MINSHORT
99abf803 748# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 749# else
750# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
751# endif
752#endif
753
99abf803 754#ifdef UINT_MAX
755# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 756#else
99abf803 757# ifdef MAXUINT
758# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 759# else
99abf803 760# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 761# endif
762#endif
763
99abf803 764#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 765
766#ifdef INT_MAX
99abf803 767# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 768#else
769# ifdef MAXINT /* Often used in <values.h> */
99abf803 770# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 771# else
99abf803 772# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 773# endif
774#endif
775
776#ifdef INT_MIN
99abf803 777# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 778#else
779# ifdef MININT
99abf803 780# define PERL_INT_MIN ((int)MININT)
27d4fb96 781# else
782# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
783# endif
784#endif
785
99abf803 786#ifdef ULONG_MAX
787# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 788#else
99abf803 789# ifdef MAXULONG
790# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 791# else
99abf803 792# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 793# endif
794#endif
795
99abf803 796#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 797
760ac839 798#ifdef LONG_MAX
99abf803 799# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 800#else
801# ifdef MAXLONG /* Often used in <values.h> */
99abf803 802# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 803# else
99abf803 804# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 805# endif
806#endif
807
808#ifdef LONG_MIN
99abf803 809# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 810#else
811# ifdef MINLONG
99abf803 812# define PERL_LONG_MIN ((long)MINLONG)
760ac839 813# else
27d4fb96 814# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 815# endif
816#endif
817
99abf803 818#ifdef HAS_QUAD
819
820# ifdef UQUAD_MAX
821# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 822# else
99abf803 823# define PERL_UQUAD_MAX (~(UV)0)
760ac839 824# endif
760ac839 825
99abf803 826# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 827
27d4fb96 828# ifdef QUAD_MAX
99abf803 829# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 830# else
99abf803 831# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 832# endif
833
834# ifdef QUAD_MIN
99abf803 835# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 836# else
a6e633de 837# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 838# endif
839
760ac839
LW		 840#endif
841
ee0007ab 842typedef MEM_SIZE STRLEN;
450a55e4 843
79072805
LW		 844typedef struct op OP;
845typedef struct cop COP;
846typedef struct unop UNOP;
847typedef struct binop BINOP;
848typedef struct listop LISTOP;
849typedef struct logop LOGOP;
850typedef struct condop CONDOP;
851typedef struct pmop PMOP;
852typedef struct svop SVOP;
853typedef struct gvop GVOP;
854typedef struct pvop PVOP;
79072805
LW		 855typedef struct loop LOOP;
856
857typedef struct Outrec Outrec;
93a17b20 858typedef struct interpreter PerlInterpreter;
3e3baf6d
TB		 859#ifndef __BORLANDC__
860typedef struct ff FF; /* XXX not defined anywhere, should go? */
861#endif
79072805
LW		 862typedef struct sv SV;
863typedef struct av AV;
864typedef struct hv HV;
865typedef struct cv CV;
378cc40b 866typedef struct regexp REGEXP;
79072805 867typedef struct gp GP;
0c30d9ec 868typedef struct gv GV;
8990e307 869typedef struct io IO;
79072805
LW		 870typedef struct context CONTEXT;
871typedef struct block BLOCK;
872
873typedef struct magic MAGIC;
ed6116ce 874typedef struct xrv XRV;
79072805
LW		 875typedef struct xpv XPV;
876typedef struct xpviv XPVIV;
ff68c719 877typedef struct xpvuv XPVUV;
79072805
LW		 878typedef struct xpvnv XPVNV;
879typedef struct xpvmg XPVMG;
880typedef struct xpvlv XPVLV;
881typedef struct xpvav XPVAV;
882typedef struct xpvhv XPVHV;
883typedef struct xpvgv XPVGV;
884typedef struct xpvcv XPVCV;
885typedef struct xpvbm XPVBM;
886typedef struct xpvfm XPVFM;
8990e307 887typedef struct xpvio XPVIO;
79072805
LW		 888typedef struct mgvtbl MGVTBL;
889typedef union any ANY;
8d063cd8 890
378cc40b 891#include "handy.h"
a0d0e21e 892
16d20bd9
AD		 893typedef I32 (*filter_t) _((int, SV *, int));
894#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
895#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
896#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
897
748a9306 898#ifdef DOSISH
4633a7c4
LW		 899# if defined(OS2)
900# include "os2ish.h"
901# else
748a9306 902# include "dosish.h"
4633a7c4 903# endif
a0d0e21e 904#else
748a9306
LW		 905# if defined(VMS)
906# include "vmsish.h"
907# else
0c30d9ec 908# if defined(PLAN9)
909# include "./plan9/plan9ish.h"
910# else
911# include "unixish.h"
912# endif
748a9306
LW		 913# endif
914#endif
3fc1aec6 915
68dc0745 916#ifdef VMS
917# define STATUS_NATIVE statusvalue_vms
918# define STATUS_NATIVE_EXPORT \
919 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
920# define STATUS_NATIVE_SET(n) \
921 STMT_START { \
922 statusvalue_vms = (n); \
923 if ((I32)statusvalue_vms == -1) \
924 statusvalue = -1; \
925 else if (statusvalue_vms & STS$M_SUCCESS) \
926 statusvalue = 0; \
927 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
928 statusvalue = 1 << 8; \
929 else \
930 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
931 } STMT_END
932# define STATUS_POSIX statusvalue
933# ifdef VMSISH_STATUS
934# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
935# else
936# define STATUS_CURRENT STATUS_POSIX
937# endif
938# define STATUS_POSIX_SET(n) \
939 STMT_START { \
940 statusvalue = (n); \
941 if (statusvalue != -1) { \
942 statusvalue &= 0xFFFF; \
943 statusvalue_vms = statusvalue ? 44 : 1; \
944 } \
945 else statusvalue_vms = -1; \
946 } STMT_END
947# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
948# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
949#else
950# define STATUS_NATIVE STATUS_POSIX
951# define STATUS_NATIVE_EXPORT STATUS_POSIX
952# define STATUS_NATIVE_SET STATUS_POSIX_SET
953# define STATUS_POSIX statusvalue
954# define STATUS_POSIX_SET(n) \
955 STMT_START { \
956 statusvalue = (n); \
957 if (statusvalue != -1) \
958 statusvalue &= 0xFFFF; \
959 } STMT_END
960# define STATUS_CURRENT STATUS_POSIX
961# define STATUS_ALL_SUCCESS (statusvalue = 0)
962# define STATUS_ALL_FAILURE (statusvalue = 1)
963#endif
964
3fc1aec6 965/* Some unistd.h's give a prototype for pause() even though
966 HAS_PAUSE ends up undefined. This causes the #define
967 below to be rejected by the compmiler. Sigh.
968*/
969#ifdef HAS_PAUSE
970#define Pause pause
971#else
972#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 973#endif
974
975#ifndef IOCPARM_LEN
976# ifdef IOCPARM_MASK
977 /* on BSDish systes we're safe */
978# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
979# else
980 /* otherwise guess at what's safe */
981# define IOCPARM_LEN(x) 256
982# endif
a0d0e21e
LW		 983#endif
984
79072805
LW		 985union any {
986 void* any_ptr;
987 I32 any_i32;
a0d0e21e 988 IV any_iv;
85e6fe83 989 long any_long;
a0d0e21e 990 void (*any_dptr) _((void*));
79072805
LW		 991};
992
5aabfad6 993/* Work around some cygwin32 problems with importing global symbols */
994#if defined(CYGWIN32) && defined(DLLIMPORT)
995# include "cw32imp.h"
996#endif
997
378cc40b 998#include "regexp.h"
79072805 999#include "sv.h"
378cc40b 1000#include "util.h"
8d063cd8 1001#include "form.h"
79072805
LW		 1002#include "gv.h"
1003#include "cv.h"
1004#include "opcode.h"
1005#include "op.h"
1006#include "cop.h"
1007#include "av.h"
1008#include "hv.h"
1009#include "mg.h"
1010#include "scope.h"
8d063cd8 1011
4633a7c4
LW		 1012/* work around some libPW problems */
1013#ifdef DOINIT
1014EXT char Error[1];
1015#endif
1016
450a55e4 1017#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW		 1018# define I286
1019#endif
1020
fe14fcc3
LW		 1021#if defined(htonl) && !defined(HAS_HTONL)
1022#define HAS_HTONL
ae986130 1023#endif
fe14fcc3
LW		 1024#if defined(htons) && !defined(HAS_HTONS)
1025#define HAS_HTONS
ae986130 1026#endif
fe14fcc3
LW		 1027#if defined(ntohl) && !defined(HAS_NTOHL)
1028#define HAS_NTOHL
ae986130 1029#endif
fe14fcc3
LW		 1030#if defined(ntohs) && !defined(HAS_NTOHS)
1031#define HAS_NTOHS
ae986130 1032#endif
fe14fcc3 1033#ifndef HAS_HTONL
d9d8d8de 1034#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW		 1035#define HAS_HTONS
1036#define HAS_HTONL
1037#define HAS_NTOHS
1038#define HAS_NTOHL
a687059c
LW		 1039#define MYSWAP
1040#define htons my_swap
1041#define htonl my_htonl
1042#define ntohs my_swap
1043#define ntohl my_ntohl
1044#endif
1045#else
d9d8d8de 1046#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW		 1047#undef HAS_HTONS
1048#undef HAS_HTONL
1049#undef HAS_NTOHS
1050#undef HAS_NTOHL
a687059c
LW		 1051#endif
1052#endif
1053
988174c1
LW		 1054/*
1055 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1056 * -DWS
1057 */
1058#if BYTEORDER != 0x1234
1059# define HAS_VTOHL
1060# define HAS_VTOHS
1061# define HAS_HTOVL
1062# define HAS_HTOVS
1063# if BYTEORDER == 0x4321
1064# define vtohl(x) ((((x)&0xFF)<<24) \
1065 +(((x)>>24)&0xFF) \
1066 +(((x)&0x0000FF00)<<8) \
1067 +(((x)&0x00FF0000)>>8) )
1068# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1069# define htovl(x) vtohl(x)
1070# define htovs(x) vtohs(x)
1071# endif
1072 /* otherwise default to functions in util.c */
1073#endif
1074
0f85fab0 1075#ifdef CASTNEGFLOAT
79072805 1076#define U_S(what) ((U16)(what))
0f85fab0 1077#define U_I(what) ((unsigned int)(what))
79072805 1078#define U_L(what) ((U32)(what))
0f85fab0 1079#else
a6e633de 1080# ifdef __cplusplus
1081 extern "C" {
1082# endif
a0d0e21e 1083U32 cast_ulong _((double));
a6e633de 1084# ifdef __cplusplus
1085 }
1086# endif
232e078e
AD		 1087#define U_S(what) ((U16)cast_ulong((double)(what)))
1088#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1089#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW		 1090#endif
1091
ed6116ce
LW		 1092#ifdef CASTI32
1093#define I_32(what) ((I32)(what))
a0d0e21e 1094#define I_V(what) ((IV)(what))
5d94fbed 1095#define U_V(what) ((UV)(what))
ed6116ce 1096#else
a6e633de 1097# ifdef __cplusplus
1098 extern "C" {
1099# endif
a0d0e21e 1100I32 cast_i32 _((double));
a0d0e21e 1101IV cast_iv _((double));
5d94fbed 1102UV cast_uv _((double));
a6e633de 1103# ifdef __cplusplus
1104 }
1105# endif
1106#define I_32(what) (cast_i32((double)(what)))
1107#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1108#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW		 1109#endif
1110
79072805
LW		 1111struct Outrec {
1112 I32 o_lines;
d9d8d8de 1113 char *o_str;
79072805 1114 U32 o_len;
8d063cd8
LW		 1115};
1116
352d5a3a
LW		 1117#ifndef MAXSYSFD
1118# define MAXSYSFD 2
1119#endif
ee0007ab 1120
f82b3d41 1121#ifndef TMPPATH
1122# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1123#endif
79072805
LW		 1124
1125#ifndef __cplusplus
a0d0e21e
LW		 1126Uid_t getuid _((void));
1127Uid_t geteuid _((void));
1128Gid_t getgid _((void));
1129Gid_t getegid _((void));
79072805 1130#endif
8d063cd8
LW		 1131
1132#ifdef DEBUGGING
0c30d9ec 1133#ifndef Perl_debug_log
760ac839 1134#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1135#endif
d96024cf 1136#define YYDEBUG 1
79072805
LW		 1137#define DEB(a) a
1138#define DEBUG(a) if (debug) a
1139#define DEBUG_p(a) if (debug & 1) a
1140#define DEBUG_s(a) if (debug & 2) a
1141#define DEBUG_l(a) if (debug & 4) a
1142#define DEBUG_t(a) if (debug & 8) a
1143#define DEBUG_o(a) if (debug & 16) a
1144#define DEBUG_c(a) if (debug & 32) a
1145#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1146#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805
LW		 1147#define DEBUG_f(a) if (debug & 256) a
1148#define DEBUG_r(a) if (debug & 512) a
1149#define DEBUG_x(a) if (debug & 1024) a
1150#define DEBUG_u(a) if (debug & 2048) a
1151#define DEBUG_L(a) if (debug & 4096) a
1152#define DEBUG_H(a) if (debug & 8192) a
1153#define DEBUG_X(a) if (debug & 16384) a
8990e307 1154#define DEBUG_D(a) if (debug & 32768) a
79072805
LW		 1155#else
1156#define DEB(a)
1157#define DEBUG(a)
1158#define DEBUG_p(a)
1159#define DEBUG_s(a)
1160#define DEBUG_l(a)
1161#define DEBUG_t(a)
1162#define DEBUG_o(a)
1163#define DEBUG_c(a)
1164#define DEBUG_P(a)
1165#define DEBUG_m(a)
1166#define DEBUG_f(a)
1167#define DEBUG_r(a)
1168#define DEBUG_x(a)
1169#define DEBUG_u(a)
1170#define DEBUG_L(a)
1171#define DEBUG_H(a)
1172#define DEBUG_X(a)
8990e307 1173#define DEBUG_D(a)
8d063cd8 1174#endif
fe14fcc3 1175#define YYMAXDEPTH 300
8d063cd8 1176
a6e633de 1177#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW		 1178#define assert(what) DEB( { \
1179 if (!(what)) { \
463ee0b2 1180 croak("Assertion failed: file \"%s\", line %d", \
79072805
LW		 1181 __FILE__, __LINE__); \
1182 exit(1); \
1183 }})
a6e633de 1184#endif
8d063cd8 1185
450a55e4 1186struct ufuncs {
a0d0e21e
LW		 1187 I32 (*uf_val)_((IV, SV*));
1188 I32 (*uf_set)_((IV, SV*));
1189 IV uf_index;
450a55e4
LW		 1190};
1191
fe14fcc3 1192/* Fix these up for __STDC__ */
68dc0745 1193#ifndef DONT_DECLARE_STD
a0d0e21e
LW		 1194char *mktemp _((char*));
1195double atof _((const char*));
1196#endif
79072805 1197
352d5a3a 1198#ifndef STANDARD_C
fe14fcc3 1199/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1200Time_t time();
8d063cd8 1201struct tm *gmtime(), *localtime();
93a17b20 1202char *strchr(), *strrchr();
378cc40b 1203char *strcpy(), *strcat();
352d5a3a 1204#endif /* ! STANDARD_C */
8d063cd8 1205
79072805
LW		 1206
1207#ifdef I_MATH
1208# include <math.h>
1209#else
1210# ifdef __cplusplus
1211 extern "C" {
1212# endif
a0d0e21e 1213 double exp _((double));
a0d0e21e 1214 double log _((double));
c635e13b 1215 double log10 _((double));
a0d0e21e 1216 double sqrt _((double));
c635e13b 1217 double frexp _((double,int*));
1218 double ldexp _((double,int));
a0d0e21e
LW		 1219 double modf _((double,double*));
1220 double sin _((double));
1221 double cos _((double));
1222 double atan2 _((double,double));
1223 double pow _((double,double));
79072805
LW		 1224# ifdef __cplusplus
1225 };
1226# endif
1227#endif
1228
a0d0e21e 1229#ifndef __cplusplus
3fc1aec6 1230#ifdef __NeXT__ /* or whatever catches all NeXTs */
1231char *crypt (); /* Maybe more hosts will need the unprototyped version */
1232#else
a0d0e21e 1233char *crypt _((const char*, const char*));
3fc1aec6 1234#endif
68dc0745 1235#ifndef DONT_DECLARE_STD
1e422769 1236#ifndef getenv
a0d0e21e 1237char *getenv _((const char*));
1e422769 1238#endif
a0d0e21e 1239Off_t lseek _((int,Off_t,int));
68dc0745 1240#endif
a0d0e21e
LW		 1241char *getlogin _((void));
1242#endif
79072805 1243
16d20bd9 1244#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1245#define UNLINK unlnk
a0d0e21e 1246I32 unlnk _((char*));
8d063cd8
LW		 1247#else
1248#define UNLINK unlink
1249#endif
a687059c 1250
fe14fcc3 1251#ifndef HAS_SETREUID
85e6fe83
LW		 1252# ifdef HAS_SETRESUID
1253# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1254# define HAS_SETREUID
1255# endif
a687059c 1256#endif
fe14fcc3 1257#ifndef HAS_SETREGID
85e6fe83
LW		 1258# ifdef HAS_SETRESGID
1259# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1260# define HAS_SETREGID
1261# endif
a687059c 1262#endif
ee0007ab 1263
ff68c719 1264typedef Signal_t (*Sighandler_t) _((int));
1265
1266#ifdef HAS_SIGACTION
1267typedef struct sigaction Sigsave_t;
1268#else
1269typedef Sighandler_t Sigsave_t;
1270#endif
1271
ee0007ab
LW		 1272#define SCAN_DEF 0
1273#define SCAN_TR 1
1274#define SCAN_REPL 2
79072805
LW		 1275
1276#ifdef DEBUGGING
4633a7c4 1277# ifndef register
a0d0e21e
LW		 1278# define register
1279# endif
55497cff 1280# ifdef MYMALLOC
1281# ifndef DEBUGGING_MSTATS
1282# define DEBUGGING_MSTATS
1283# endif
1284# endif
a0d0e21e 1285# define PAD_SV(po) pad_sv(po)
79072805 1286#else
a0d0e21e 1287# define PAD_SV(po) curpad[po]
79072805
LW		 1288#endif
1289
1290/****************/
1291/* Truly global */
1292/****************/
1293
1294/* global state */
a0d0e21e 1295EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec 1296/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1297#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1298#ifndef DONT_DECLARE_STD
79072805 1299extern char ** environ; /* environment variables supplied via exec */
68dc0745 1300#endif
0c30d9ec 1301#else
1302# if defined(NeXT) && defined(__DYNAMIC__)
1303
1304# include <mach-o/dyld.h>
1305EXT char *** environ_pointer;
1306# define environ (*environ_pointer)
1307# endif
1308#endif /* environ processing */
1309
79072805
LW		 1310EXT int uid; /* current real user id */
1311EXT int euid; /* current effective user id */
1312EXT int gid; /* current real group id */
1313EXT int egid; /* current effective group id */
1314EXT bool nomemok; /* let malloc context handle nomem */
1315EXT U32 an; /* malloc sequence number */
463ee0b2 1316EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1317EXT U16 op_seqmax; /* op sequence number */
8990e307 1318EXT U32 evalseq; /* eval sequence number */
463ee0b2 1319EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805
LW		 1320EXT char ** origenviron;
1321EXT U32 origalen;
44a8e56a 1322EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1323EXT U32 * profiledata;
84ea024a 1324EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1325EXT char * osname; /* operating system */
ff68c719 1326EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1327
a0d0e21e
LW		 1328EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1329EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW		 1330EXT double * xnv_root; /* free xnv list--shared by interpreters */
1331EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1332EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1333EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1334EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1335EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1336
79072805
LW		 1337/* Stack for currently executing thread--context switch must handle this. */
1338EXT SV ** stack_base; /* stack->array_ary */
1339EXT SV ** stack_sp; /* stack pointer now */
1340EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1341
1342/* likewise for these */
1343
1344EXT OP * op; /* current op--oughta be in a global register */
1345
1346EXT I32 * scopestack; /* blocks we've entered */
1347EXT I32 scopestack_ix;
1348EXT I32 scopestack_max;
1349
1350EXT ANY* savestack; /* to save non-local values on */
1351EXT I32 savestack_ix;
1352EXT I32 savestack_max;
1353
1354EXT OP ** retstack; /* returns we've pushed */
1355EXT I32 retstack_ix;
1356EXT I32 retstack_max;
1357
1358EXT I32 * markstack; /* stackmarks we're remembering */
1359EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1360EXT I32 * markstack_max; /* stackmarks we're remembering */
1361
1362EXT SV ** curpad;
1363
1364/* temp space */
1365EXT SV * Sv;
1366EXT XPV * Xpv;
79072805
LW		 1367EXT char tokenbuf[256];
1368EXT struct stat statbuf;
ecfc5424 1369#ifdef HAS_TIMES
79072805
LW		 1370EXT struct tms timesbuf;
1371#endif
463ee0b2 1372EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW		 1373
1374/* for tmp use in stupid debuggers */
1375EXT int * di;
1376EXT short * ds;
1377EXT char * dc;
1378
1379/* handy constants */
71be2cbc 1380EXTCONST char * Yes INIT("1");
1381EXTCONST char * No INIT("");
1382EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1383EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1384EXTCONST char * vert INIT("|");
79072805 1385
3e3baf6d 1386EXTCONST char warn_uninit[]
a0d0e21e 1387 INIT("Use of uninitialized value");
3e3baf6d 1388EXTCONST char warn_nosemi[]
463ee0b2 1389 INIT("Semicolon seems to be missing");
3e3baf6d 1390EXTCONST char warn_reserved[]
463ee0b2 1391 INIT("Unquoted string \"%s\" may clash with future reserved word");
3e3baf6d 1392EXTCONST char warn_nl[]
93a17b20 1393 INIT("Unsuccessful %s on filename containing newline");
3e3baf6d 1394EXTCONST char no_wrongref[]
a0d0e21e 1395 INIT("Can't use %s ref as %s ref");
3e3baf6d 1396EXTCONST char no_symref[]
748a9306 1397 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
3e3baf6d 1398EXTCONST char no_usym[]
8990e307 1399 INIT("Can't use an undefined value as %s reference");
3e3baf6d 1400EXTCONST char no_aelem[]
93a17b20 1401 INIT("Modification of non-creatable array value attempted, subscript %d");
3e3baf6d 1402EXTCONST char no_helem[]
93a17b20 1403 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
3e3baf6d 1404EXTCONST char no_modify[]
93a17b20 1405 INIT("Modification of a read-only value attempted");
3e3baf6d 1406EXTCONST char no_mem[]
93a17b20 1407 INIT("Out of memory!\n");
3e3baf6d 1408EXTCONST char no_security[]
463ee0b2 1409 INIT("Insecure dependency in %s%s");
3e3baf6d 1410EXTCONST char no_sock_func[]
93a17b20 1411 INIT("Unsupported socket function \"%s\" called");
3e3baf6d 1412EXTCONST char no_dir_func[]
93a17b20 1413 INIT("Unsupported directory function \"%s\" called");
3e3baf6d 1414EXTCONST char no_func[]
93a17b20 1415 INIT("The %s function is unimplemented");
3e3baf6d 1416EXTCONST char no_myglob[]
748a9306 1417 INIT("\"my\" variable %s can't be in a package");
93a17b20 1418
79072805
LW		 1419EXT SV sv_undef;
1420EXT SV sv_no;
1421EXT SV sv_yes;
1422#ifdef CSH
1423 EXT char * cshname INIT(CSH);
1424 EXT I32 cshlen;
1425#endif
1426
1427#ifdef DOINIT
8e07c86e
AD		 1428EXT char *sig_name[] = { SIG_NAME };
1429EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1430EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1431EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW		 1432#else
1433EXT char *sig_name[];
8e07c86e 1434EXT int sig_num[];
0c30d9ec 1435EXT SV * psig_ptr[];
1436EXT SV * psig_name[];
79072805
LW		 1437#endif
1438
bbce6d69 1439/* fast case folding tables */
1440
79072805 1441#ifdef DOINIT
36477c24 1442EXTCONST unsigned char fold[] = {
79072805
LW		 1443 0, 1, 2, 3, 4, 5, 6, 7,
1444 8, 9, 10, 11, 12, 13, 14, 15,
1445 16, 17, 18, 19, 20, 21, 22, 23,
1446 24, 25, 26, 27, 28, 29, 30, 31,
1447 32, 33, 34, 35, 36, 37, 38, 39,
1448 40, 41, 42, 43, 44, 45, 46, 47,
1449 48, 49, 50, 51, 52, 53, 54, 55,
1450 56, 57, 58, 59, 60, 61, 62, 63,
1451 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1452 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1453 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1454 'x', 'y', 'z', 91, 92, 93, 94, 95,
1455 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1456 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1457 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1458 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1459 128, 129, 130, 131, 132, 133, 134, 135,
1460 136, 137, 138, 139, 140, 141, 142, 143,
1461 144, 145, 146, 147, 148, 149, 150, 151,
1462 152, 153, 154, 155, 156, 157, 158, 159,
1463 160, 161, 162, 163, 164, 165, 166, 167,
1464 168, 169, 170, 171, 172, 173, 174, 175,
1465 176, 177, 178, 179, 180, 181, 182, 183,
1466 184, 185, 186, 187, 188, 189, 190, 191,
1467 192, 193, 194, 195, 196, 197, 198, 199,
1468 200, 201, 202, 203, 204, 205, 206, 207,
1469 208, 209, 210, 211, 212, 213, 214, 215,
1470 216, 217, 218, 219, 220, 221, 222, 223,
1471 224, 225, 226, 227, 228, 229, 230, 231,
1472 232, 233, 234, 235, 236, 237, 238, 239,
1473 240, 241, 242, 243, 244, 245, 246, 247,
1474 248, 249, 250, 251, 252, 253, 254, 255
1475};
1476#else
71be2cbc 1477EXTCONST unsigned char fold[];
79072805
LW		 1478#endif
1479
1480#ifdef DOINIT
bbce6d69 1481EXT unsigned char fold_locale[] = {
1482 0, 1, 2, 3, 4, 5, 6, 7,
1483 8, 9, 10, 11, 12, 13, 14, 15,
1484 16, 17, 18, 19, 20, 21, 22, 23,
1485 24, 25, 26, 27, 28, 29, 30, 31,
1486 32, 33, 34, 35, 36, 37, 38, 39,
1487 40, 41, 42, 43, 44, 45, 46, 47,
1488 48, 49, 50, 51, 52, 53, 54, 55,
1489 56, 57, 58, 59, 60, 61, 62, 63,
1490 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1491 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1492 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1493 'x', 'y', 'z', 91, 92, 93, 94, 95,
1494 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1495 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1496 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1497 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1498 128, 129, 130, 131, 132, 133, 134, 135,
1499 136, 137, 138, 139, 140, 141, 142, 143,
1500 144, 145, 146, 147, 148, 149, 150, 151,
1501 152, 153, 154, 155, 156, 157, 158, 159,
1502 160, 161, 162, 163, 164, 165, 166, 167,
1503 168, 169, 170, 171, 172, 173, 174, 175,
1504 176, 177, 178, 179, 180, 181, 182, 183,
1505 184, 185, 186, 187, 188, 189, 190, 191,
1506 192, 193, 194, 195, 196, 197, 198, 199,
1507 200, 201, 202, 203, 204, 205, 206, 207,
1508 208, 209, 210, 211, 212, 213, 214, 215,
1509 216, 217, 218, 219, 220, 221, 222, 223,
1510 224, 225, 226, 227, 228, 229, 230, 231,
1511 232, 233, 234, 235, 236, 237, 238, 239,
1512 240, 241, 242, 243, 244, 245, 246, 247,
1513 248, 249, 250, 251, 252, 253, 254, 255
1514};
1515#else
1516EXT unsigned char fold_locale[];
1517#endif
1518
1519#ifdef DOINIT
71be2cbc 1520EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 1521 1, 2, 84, 151, 154, 155, 156, 157,
1522 165, 246, 250, 3, 158, 7, 18, 29,
1523 40, 51, 62, 73, 85, 96, 107, 118,
1524 129, 140, 147, 148, 149, 150, 152, 153,
1525 255, 182, 224, 205, 174, 176, 180, 217,
1526 233, 232, 236, 187, 235, 228, 234, 226,
1527 222, 219, 211, 195, 188, 193, 185, 184,
1528 191, 183, 201, 229, 181, 220, 194, 162,
1529 163, 208, 186, 202, 200, 218, 198, 179,
1530 178, 214, 166, 170, 207, 199, 209, 206,
1531 204, 160, 212, 216, 215, 192, 175, 173,
1532 243, 172, 161, 190, 203, 189, 164, 230,
1533 167, 248, 227, 244, 242, 255, 241, 231,
1534 240, 253, 169, 210, 245, 237, 249, 247,
1535 239, 168, 252, 251, 254, 238, 223, 221,
1536 213, 225, 177, 197, 171, 196, 159, 4,
1537 5, 6, 8, 9, 10, 11, 12, 13,
1538 14, 15, 16, 17, 19, 20, 21, 22,
1539 23, 24, 25, 26, 27, 28, 30, 31,
1540 32, 33, 34, 35, 36, 37, 38, 39,
1541 41, 42, 43, 44, 45, 46, 47, 48,
1542 49, 50, 52, 53, 54, 55, 56, 57,
1543 58, 59, 60, 61, 63, 64, 65, 66,
1544 67, 68, 69, 70, 71, 72, 74, 75,
1545 76, 77, 78, 79, 80, 81, 82, 83,
1546 86, 87, 88, 89, 90, 91, 92, 93,
1547 94, 95, 97, 98, 99, 100, 101, 102,
1548 103, 104, 105, 106, 108, 109, 110, 111,
1549 112, 113, 114, 115, 116, 117, 119, 120,
1550 121, 122, 123, 124, 125, 126, 127, 128,
1551 130, 131, 132, 133, 134, 135, 136, 137,
1552 138, 139, 141, 142, 143, 144, 145, 146
1553};
1554#else
71be2cbc 1555EXTCONST unsigned char freq[];
79072805
LW		 1556#endif
1557
8990e307
LW		 1558#ifdef DEBUGGING
1559#ifdef DOINIT
71be2cbc 1560EXTCONST char* block_type[] = {
8990e307
LW		 1561 "NULL",
1562 "SUB",
1563 "EVAL",
1564 "LOOP",
1565 "SUBST",
1566 "BLOCK",
1567};
1568#else
71be2cbc 1569EXTCONST char* block_type[];
8990e307
LW		 1570#endif
1571#endif
1572
79072805
LW		 1573/*****************************************************************************/
1574/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1575/*****************************************************************************/
8990e307 1576/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1577
a0d0e21e
LW		 1578#include "perly.h"
1579
79072805
LW		 1580typedef enum {
1581 XOPERATOR,
1582 XTERM,
79072805 1583 XREF,
8990e307 1584 XSTATE,
a0d0e21e
LW		 1585 XBLOCK,
1586 XTERMBLOCK
79072805
LW		 1587} expectation;
1588
a0d0e21e
LW		 1589EXT U32 lex_state; /* next token is determined */
1590EXT U32 lex_defer; /* state after determined token */
1591EXT expectation lex_expect; /* expect after determined token */
1592EXT I32 lex_brackets; /* bracket count */
1593EXT I32 lex_formbrack; /* bracket count at outer format level */
1594EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1595EXT I32 lex_casemods; /* casemod count */
1596EXT I32 lex_dojoin; /* doing an array interpolation */
1597EXT I32 lex_starts; /* how many interps done on level */
1598EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1599EXT SV * lex_repl; /* runtime replacement from s/// */
1600EXT OP * lex_op; /* extra info to pass back on op */
1601EXT OP * lex_inpat; /* in pattern $) and $| are special */
1602EXT I32 lex_inwhat; /* what kind of quoting are we in */
1603EXT char * lex_brackstack; /* what kind of brackets to pop */
1604EXT char * lex_casestack; /* what kind of case mods in effect */
1605
1606/* What we know when we're in LEX_KNOWNEXT state. */
1607EXT YYSTYPE nextval[5]; /* value of next token, if any */
1608EXT I32 nexttype[5]; /* type of next token */
1609EXT I32 nexttoke;
1610
760ac839 1611EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW		 1612EXT SV * linestr;
1613EXT char * bufptr;
1614EXT char * oldbufptr;
1615EXT char * oldoldbufptr;
1616EXT char * bufend;
8990e307 1617EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1618EXT AV * rsfp_filters;
79072805
LW		 1619
1620EXT I32 multi_start; /* 1st line of multi-line string */
1621EXT I32 multi_end; /* last line of multi-line string */
1622EXT I32 multi_open; /* delimiter of said string */
1623EXT I32 multi_close; /* delimiter of said string */
1624
1625EXT GV * scrgv;
1626EXT I32 error_count; /* how many errors so far, max 10 */
1627EXT I32 subline; /* line this subroutine began on */
1628EXT SV * subname; /* name of current subroutine */
1629
748a9306 1630EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1631EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW		 1632EXT AV * comppad_name; /* variable names for "my" variables */
1633EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1634EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW		 1635EXT I32 min_intro_pending;/* start of vars to introduce */
1636EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1637EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1638EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1639EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW		 1640EXT COP compiling;
1641
79072805
LW		 1642EXT I32 thisexpr; /* name id for nothing_in_common() */
1643EXT char * last_uni; /* position of last named-unary operator */
1644EXT char * last_lop; /* position of last list operator */
8990e307 1645EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1646EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW		 1647#ifdef FCRYPT
1648EXT I32 cryptseen; /* has fast crypt() been initialized? */
1649#endif
1650
85e6fe83
LW		 1651EXT U32 hints; /* various compilation flags */
1652
1653 /* Note: the lowest 8 bits are reserved for
1654 stuffing into op->op_private */
1655#define HINT_INTEGER 0x00000001
1656#define HINT_STRICT_REFS 0x00000002
1657
1658#define HINT_BLOCK_SCOPE 0x00000100
1659#define HINT_STRICT_SUBS 0x00000200
1660#define HINT_STRICT_VARS 0x00000400
bbce6d69 1661#define HINT_LOCALE 0x00000800
85e6fe83 1662
79072805
LW		 1663/**************************************************************************/
1664/* This regexp stuff is global since it always happens within 1 expr eval */
1665/**************************************************************************/
1666
1667EXT char * regprecomp; /* uncompiled string. */
1668EXT char * regparse; /* Input-scan pointer. */
1669EXT char * regxend; /* End of input for compile */
1670EXT I32 regnpar; /* () count. */
1671EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1672EXT I32 regsize; /* Code size. */
a0d0e21e 1673EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW		 1674EXT I32 regsawback; /* Did we see \1, ...? */
1675
1676EXT char * reginput; /* String-input pointer. */
79072805
LW		 1677EXT char * regbol; /* Beginning of input, for ^ check. */
1678EXT char * regeol; /* End of input, for $ check. */
1679EXT char ** regstartp; /* Pointer to startp array. */
1680EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1681EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1682EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW		 1683EXT U16 regflags; /* are we folding, multilining? */
1684EXT char regprev; /* char before regbol, \n if none */
79072805 1685
760ac839
LW		 1686EXT bool do_undump; /* -u or dump seen? */
1687EXT VOL U32 debug;
1688
79072805
LW		 1689/***********************************************/
1690/* Global only to current interpreter instance */
1691/***********************************************/
1692
8990e307 1693#ifdef MULTIPLICITY
79072805
LW		 1694#define IEXT
1695#define IINIT(x)
1696struct interpreter {
1697#else
1698#define IEXT EXT
1699#define IINIT(x) INIT(x)
1700#endif
1701
1702/* pseudo environmental stuff */
1703IEXT int Iorigargc;
1704IEXT char ** Iorigargv;
1705IEXT GV * Ienvgv;
1706IEXT GV * Isiggv;
1707IEXT GV * Iincgv;
1708IEXT char * Iorigfilename;
748a9306
LW		 1709IEXT SV * Idiehook;
1710IEXT SV * Iwarnhook;
1711IEXT SV * Iparsehook;
79072805 1712
c07a80fd 1713/* Various states of an input record separator SV (rs, nrs) */
1714#define RsSNARF(sv) (! SvOK(sv))
1715#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1716#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1717
79072805
LW		 1718/* switches */
1719IEXT char * Icddir;
1720IEXT bool Iminus_c;
a5f75d66 1721IEXT char Ipatchlevel[10];
728e2803 1722IEXT char ** Ilocalpatches;
c07a80fd 1723IEXT SV * Inrs;
2304df62 1724IEXT char * Isplitstr IINIT(" ");
79072805
LW		 1725IEXT bool Ipreprocess;
1726IEXT bool Iminus_n;
1727IEXT bool Iminus_p;
1728IEXT bool Iminus_l;
1729IEXT bool Iminus_a;
2304df62 1730IEXT bool Iminus_F;
79072805
LW		 1731IEXT bool Idoswitches;
1732IEXT bool Idowarn;
1733IEXT bool Idoextract;
79072805
LW		 1734IEXT bool Isawampersand; /* must save all match strings */
1735IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805
LW		 1736IEXT bool Isawvec;
1737IEXT bool Iunsafe;
79072805
LW		 1738IEXT char * Iinplace;
1739IEXT char * Ie_tmpname;
760ac839 1740IEXT PerlIO * Ie_fp;
79072805 1741IEXT U32 Iperldb;
748a9306 1742 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1743IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805
LW		 1744
1745/* magical thingies */
85e6fe83 1746IEXT Time_t Ibasetime; /* $^T */
79072805
LW		 1747IEXT SV * Iformfeed; /* $^L */
1748IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1749IEXT SV * Irs; /* $/ */
79072805 1750IEXT char * Iofs; /* $, */
8990e307 1751IEXT STRLEN Iofslen;
79072805 1752IEXT char * Iors; /* $\ */
8990e307 1753IEXT STRLEN Iorslen;
79072805
LW		 1754IEXT char * Iofmt; /* $# */
1755IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1756IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1757IEXT I32 Istatusvalue; /* $? */
f86702cc 1758#ifdef VMS
ff0cee69 1759IEXT U32 Istatusvalue_vms;
f86702cc 1760#endif
79072805
LW		 1761
1762IEXT struct stat Istatcache; /* _ */
1763IEXT GV * Istatgv;
1764IEXT SV * Istatname IINIT(Nullsv);
1765
1766/* shortcuts to various I/O objects */
1767IEXT GV * Istdingv;
1768IEXT GV * Ilast_in_gv;
1769IEXT GV * Idefgv;
1770IEXT GV * Iargvgv;
1771IEXT GV * Idefoutgv;
79072805
LW		 1772IEXT GV * Iargvoutgv;
1773
1774/* shortcuts to regexp stuff */
1775IEXT GV * Ileftgv;
1776IEXT GV * Iampergv;
1777IEXT GV * Irightgv;
1778IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805
LW		 1779IEXT I32 * Iscreamfirst;
1780IEXT I32 * Iscreamnext;
1781IEXT I32 Imaxscream IINIT(-1);
1782IEXT SV * Ilastscream;
1783
4633a7c4
LW		 1784/* shortcuts to misc objects */
1785IEXT GV * Ierrgv;
1786
79072805
LW		 1787/* shortcuts to debugging objects */
1788IEXT GV * IDBgv;
1789IEXT GV * IDBline;
1790IEXT GV * IDBsub;
1791IEXT SV * IDBsingle;
1792IEXT SV * IDBtrace;
1793IEXT SV * IDBsignal;
1794IEXT AV * Ilineary; /* lines of script for debugger */
1795IEXT AV * Idbargs; /* args to call listed by caller function */
1796
1797/* symbol tables */
1798IEXT HV * Idefstash; /* main symbol table */
1799IEXT HV * Icurstash; /* symbol table for current package */
1800IEXT HV * Idebstash; /* symbol table for perldb package */
1801IEXT SV * Icurstname; /* name of current package */
93a17b20
LW		 1802IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1803IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1804IEXT HV * Istrtab; /* shared string table */
79072805
LW		 1805
1806/* memory management */
79072805
LW		 1807IEXT SV ** Itmps_stack;
1808IEXT I32 Itmps_ix IINIT(-1);
1809IEXT I32 Itmps_floor IINIT(-1);
8990e307
LW		 1810IEXT I32 Itmps_max;
1811IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1812IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307
LW		 1813IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1814IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805
LW		 1815
1816/* funky return mechanisms */
1817IEXT I32 Ilastspbase;
1818IEXT I32 Ilastsize;
1819IEXT int Iforkprocess; /* so do_open |- can return proc# */
1820
1821/* subprocess state */
1822IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805
LW		 1823
1824/* internal state */
463ee0b2
LW		 1825IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1826IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1827IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1828IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1829IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1830IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1831IEXT bool Itainting; /* doing taint checks */
e50aee73 1832IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805
LW		 1833
1834/* trace state */
1835IEXT I32 Idlevel;
1836IEXT I32 Idlmax IINIT(128);
1837IEXT char * Idebname;
1838IEXT char * Idebdelim;
1839
1840/* current interpreter roots */
748a9306 1841IEXT CV * Imain_cv;
463ee0b2
LW		 1842IEXT OP * Imain_root;
1843IEXT OP * Imain_start;
1844IEXT OP * Ieval_root;
1845IEXT OP * Ieval_start;
79072805
LW		 1846
1847/* runtime control stuff */
1848IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1849IEXT COP * Icurcopdb IINIT(NULL);
79072805
LW		 1850IEXT line_t Icopline IINIT(NOLINE);
1851IEXT CONTEXT * Icxstack;
1852IEXT I32 Icxstack_ix IINIT(-1);
1853IEXT I32 Icxstack_max IINIT(128);
54310121 1854IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1855IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1856IEXT I32 Irunlevel;
79072805
LW		 1857
1858/* stack stuff */
0c30d9ec 1859IEXT AV * Icurstack; /* THE STACK */
79072805
LW		 1860IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1861IEXT SV ** Imystack_base; /* stack->array_ary */
1862IEXT SV ** Imystack_sp; /* stack pointer now */
1863IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1864
1865/* format accumulators */
463ee0b2
LW		 1866IEXT SV * Iformtarget;
1867IEXT SV * Ibodytarget;
1868IEXT SV * Itoptarget;
79072805
LW		 1869
1870/* statics moved here for shared library purposes */
93a17b20 1871IEXT SV Istrchop; /* return value from chop */
79072805
LW		 1872IEXT int Ifilemode; /* so nextargv() can preserve mode */
1873IEXT int Ilastfd; /* what to preserve mode on */
1874IEXT char * Ioldname; /* what to preserve mode on */
1875IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1876IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1877IEXT OP * Isortcop; /* user defined sort routine */
1878IEXT HV * Isortstash; /* which is in some package or other */
1879IEXT GV * Ifirstgv; /* $a */
1880IEXT GV * Isecondgv; /* $b */
1881IEXT AV * Isortstack; /* temp stack during pp_sort() */
1882IEXT AV * Isignalstack; /* temp stack during sighandler() */
1883IEXT SV * Imystrk; /* temp key string for do_each() */
1884IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805
LW		 1885IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1886IEXT I32 Igensym; /* next symbol for getsym() to define */
1887IEXT bool Ipreambled;
3c81428c 1888IEXT AV * Ipreambleav;
79072805
LW		 1889IEXT int Ilaststatval IINIT(-1);
1890IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1891IEXT SV * Imess_sv;
79072805
LW		 1892
1893#undef IEXT
1894#undef IINIT
1895
8990e307 1896#ifdef MULTIPLICITY
79072805
LW		 1897};
1898#else
1899struct interpreter {
1900 char broiled;
1901};
1902#endif
1903
1904#include "pp.h"
1905
1906#ifdef __cplusplus
1907extern "C" {
1908#endif
1909
1910#include "proto.h"
1911
a0d0e21e
LW		 1912#ifdef EMBED
1913#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1914#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1915#else
1916#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1917#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1918#endif
1919
79072805
LW		 1920#ifdef __cplusplus
1921};
1922#endif
1923
93a17b20 1924/* The following must follow proto.h */
79072805
LW		 1925
1926#ifdef DOINIT
bbce6d69 1927
4633a7c4 1928EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW		 1929 magic_set,
1930 magic_len,
1931 0, 0};
66b1d557
HM		 1932EXT MGVTBL vtbl_env = {0, 0, 0, magic_clear_all_env,
1933 0};
4633a7c4 1934EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW		 1935 0, magic_clearenv,
1936 0};
4633a7c4 1937EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1938EXT MGVTBL vtbl_sigelem = {magic_getsig,
1939 magic_setsig,
1940 0, magic_clearsig,
1941 0};
4633a7c4 1942EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1943 0};
4633a7c4 1944EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW		 1945 magic_setpack,
1946 0, magic_clearpack,
1947 0};
4633a7c4 1948EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1949 0, 0, 0};
4633a7c4 1950EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1951 0, 0, 0};
4633a7c4 1952EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1953 0, 0, 0};
4633a7c4 1954EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2
LW		 1955 magic_setarylen,
1956 0, 0, 0};
4633a7c4 1957EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW		 1958 magic_setglob,
1959 0, 0, 0};
4633a7c4 1960EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1961 0, 0, 0};
99abf803 1962EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1963 0, 0, 0};
4633a7c4 1964EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1965 0, 0, 0};
4633a7c4 1966EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1967 0, 0, 0};
4633a7c4 1968EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1969 0, 0, 0};
4633a7c4 1970EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW		 1971 magic_setpos,
1972 0, 0, 0};
4633a7c4 1973EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1974 0, 0, 0};
55497cff 1975EXT MGVTBL vtbl_fm = {0, magic_setfm,
1976 0, 0, 0};
4633a7c4 1977EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW		 1978 magic_setuvar,
1979 0, 0, 0};
68dc0745 1980EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
1981 0, 0, magic_freedefelem};
a0d0e21e 1982
36477c24 1983#ifdef USE_LOCALE_COLLATE
bbce6d69 1984EXT MGVTBL vtbl_collxfrm = {0,
1985 magic_setcollxfrm,
1986 0, 0, 0};
1987#endif
1988
a0d0e21e 1989#ifdef OVERLOAD
4633a7c4 1990EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1991 0, 0, magic_setamagic};
4633a7c4 1992EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1993 0, 0, magic_setamagic};
a0d0e21e
LW		 1994#endif /* OVERLOAD */
1995
bbce6d69 1996#else /* !DOINIT */
1997
79072805
LW		 1998EXT MGVTBL vtbl_sv;
1999EXT MGVTBL vtbl_env;
2000EXT MGVTBL vtbl_envelem;
2001EXT MGVTBL vtbl_sig;
2002EXT MGVTBL vtbl_sigelem;
463ee0b2
LW		 2003EXT MGVTBL vtbl_pack;
2004EXT MGVTBL vtbl_packelem;
79072805 2005EXT MGVTBL vtbl_dbline;
463ee0b2
LW		 2006EXT MGVTBL vtbl_isa;
2007EXT MGVTBL vtbl_isaelem;
79072805
LW		 2008EXT MGVTBL vtbl_arylen;
2009EXT MGVTBL vtbl_glob;
93a17b20 2010EXT MGVTBL vtbl_mglob;
99abf803 2011EXT MGVTBL vtbl_nkeys;
463ee0b2 2012EXT MGVTBL vtbl_taint;
79072805
LW		 2013EXT MGVTBL vtbl_substr;
2014EXT MGVTBL vtbl_vec;
a0d0e21e 2015EXT MGVTBL vtbl_pos;
79072805 2016EXT MGVTBL vtbl_bm;
55497cff 2017EXT MGVTBL vtbl_fm;
79072805 2018EXT MGVTBL vtbl_uvar;
68dc0745 2019EXT MGVTBL vtbl_defelem;
a0d0e21e 2020
36477c24 2021#ifdef USE_LOCALE_COLLATE
bbce6d69 2022EXT MGVTBL vtbl_collxfrm;
2023#endif
2024
a0d0e21e
LW		 2025#ifdef OVERLOAD
2026EXT MGVTBL vtbl_amagic;
2027EXT MGVTBL vtbl_amagicelem;
2028#endif /* OVERLOAD */
2029
bbce6d69 2030#endif /* !DOINIT */
85e6fe83 2031
a0d0e21e 2032#ifdef OVERLOAD
c0315cdf 2033
a0d0e21e
LW		 2034EXT long amagic_generation;
2035
a6006777 2036#define NofAMmeth 58
a0d0e21e 2037#ifdef DOINIT
a6006777 2038EXTCONST char * AMG_names[NofAMmeth] = {
2039 "fallback", "abs", /* "fallback" should be the first. */
2040 "bool", "nomethod",
2041 "\"\"", "0+",
2042 "+", "+=",
2043 "-", "-=",
2044 "*", "*=",
2045 "/", "/=",
2046 "%", "%=",
2047 "**", "**=",
2048 "<<", "<<=",
2049 ">>", ">>=",
2050 "&", "&=",
2051 "|", "|=",
2052 "^", "^=",
2053 "<", "<=",
2054 ">", ">=",
2055 "==", "!=",
2056 "<=>", "cmp",
2057 "lt", "le",
2058 "gt", "ge",
2059 "eq", "ne",
2060 "!", "~",
2061 "++", "--",
2062 "atan2", "cos",
2063 "sin", "exp",
2064 "log", "sqrt",
2065 "x", "x=",
2066 ".", ".=",
2067 "=", "neg"
a0d0e21e
LW		 2068};
2069#else
a6006777 2070EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW		 2071#endif /* def INITAMAGIC */
2072
a6006777 2073struct am_table {
a0d0e21e
LW		 2074 long was_ok_sub;
2075 long was_ok_am;
a6006777 2076 U32 flags;
2077 CV* table[NofAMmeth];
a0d0e21e
LW		 2078 long fallback;
2079};
a6006777 2080struct am_table_short {
2081 long was_ok_sub;
2082 long was_ok_am;
2083 U32 flags;
2084};
a0d0e21e 2085typedef struct am_table AMT;
a6006777 2086typedef struct am_table_short AMTS;
a0d0e21e
LW		 2087
2088#define AMGfallNEVER 1
2089#define AMGfallNO 2
2090#define AMGfallYES 3
2091
a6006777 2092#define AMTf_AMAGIC 1
2093#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2094#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2095#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2096
a0d0e21e
LW		 2097enum {
2098 fallback_amg, abs_amg,
2099 bool__amg, nomethod_amg,
2100 string_amg, numer_amg,
2101 add_amg, add_ass_amg,
2102 subtr_amg, subtr_ass_amg,
2103 mult_amg, mult_ass_amg,
2104 div_amg, div_ass_amg,
2105 mod_amg, mod_ass_amg,
2106 pow_amg, pow_ass_amg,
2107 lshift_amg, lshift_ass_amg,
2108 rshift_amg, rshift_ass_amg,
748a9306
LW		 2109 band_amg, band_ass_amg,
2110 bor_amg, bor_ass_amg,
2111 bxor_amg, bxor_ass_amg,
a0d0e21e
LW		 2112 lt_amg, le_amg,
2113 gt_amg, ge_amg,
2114 eq_amg, ne_amg,
2115 ncmp_amg, scmp_amg,
2116 slt_amg, sle_amg,
2117 sgt_amg, sge_amg,
2118 seq_amg, sne_amg,
a0d0e21e
LW		 2119 not_amg, compl_amg,
2120 inc_amg, dec_amg,
2121 atan2_amg, cos_amg,
2122 sin_amg, exp_amg,
2123 log_amg, sqrt_amg,
2124 repeat_amg, repeat_ass_amg,
748a9306
LW		 2125 concat_amg, concat_ass_amg,
2126 copy_amg, neg_amg
a0d0e21e 2127};
c0315cdf
JH		 2128
2129/*
2130 * some compilers like to redefine cos et alia as faster
2131 * (and less accurate?) versions called F_cos et cetera (Quidquid
2132 * latine dictum sit, altum viditur.) This trick collides with
2133 * the Perl overloading (amg). The following #defines fool both.
2134 */
2135
2136#ifdef _FASTMATH
2137# ifdef atan2
2138# define F_atan2_amg atan2_amg
2139# endif
2140# ifdef cos
2141# define F_cos_amg cos_amg
2142# endif
2143# ifdef exp
2144# define F_exp_amg exp_amg
2145# endif
2146# ifdef log
2147# define F_log_amg log_amg
2148# endif
2149# ifdef pow
2150# define F_pow_amg pow_amg
2151# endif
2152# ifdef sin
2153# define F_sin_amg sin_amg
2154# endif
2155# ifdef sqrt
2156# define F_sqrt_amg sqrt_amg
2157# endif
2158#endif /* _FASTMATH */
2159
a0d0e21e 2160#endif /* OVERLOAD */
36477c24 2161
2162#ifdef USE_LOCALE_COLLATE
bbce6d69 2163EXT U32 collation_ix; /* Collation generation index */
2164EXT char * collation_name; /* Name of current collation */
2165EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2166EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2167EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2168#endif /* USE_LOCALE_COLLATE */
bbce6d69 2169
36477c24 2170#ifdef USE_LOCALE_NUMERIC
bbce6d69 2171
2172EXT char * numeric_name; /* Name of current numeric locale */
2173EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2174EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2175
36477c24 2176#define SET_NUMERIC_STANDARD() \
2177 STMT_START { \
2178 if (! numeric_standard) \
2179 perl_set_numeric_standard(); \
2180 } STMT_END
2181
2182#define SET_NUMERIC_LOCAL() \
2183 STMT_START { \
2184 if (! numeric_local) \
2185 perl_set_numeric_local(); \
2186 } STMT_END
bbce6d69 2187
36477c24 2188#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2189
36477c24 2190#define SET_NUMERIC_STANDARD() /**/
2191#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2192
36477c24 2193#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2194
760ac839
LW		 2195#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2196/*
2197 * Now we have __attribute__ out of the way
2198 * Remap printf
2199 */
2200#define printf PerlIO_stdoutf
2201#endif
2202
85e6fe83 2203#endif /* Include guard */
a6e633de 2204
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