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Clean up and document API for hashes
[p5sagit/p5-mst-13.2.git] / perl.h
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a0d0e21e 1/* perl.h
a687059c 2 *
a0d0e21e 3 * Copyright (c) 1987-1994, Larry Wall
a687059c 4 *
352d5a3a 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 9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
760ac839 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 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 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 */
83#if defined(MSDOS) || defined(atarist)
84#define DOSISH 1
85#endif
86
a0d0e21e 87#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
352d5a3a 88# define STANDARD_C 1
89#endif
90
91#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 92# ifdef __cplusplus
93# define VOL // to temporarily suppress warnings
94# else
95# define VOL volatile
96# endif
663a0e37 97#else
79072805 98# define VOL
663a0e37 99#endif
100
bbce6d69 101#define TAINT (tainted = TRUE)
102#define TAINT_NOT (tainted = FALSE)
103#define TAINT_IF(c) if (c) { tainted = TRUE; }
104#define TAINT_ENV() if (tainting) { taint_env(); }
105#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 106
a6e633de 107/* XXX All process group stuff is handled in pp_sys.c. Should these
108 defines move there? If so, I could simplify this a lot. --AD 9/96.
109*/
110/* Process group stuff changed from traditional BSD to POSIX.
111 perlfunc.pod documents the traditional BSD-style syntax, so we'll
112 try to preserve that, if possible.
113*/
114#ifdef HAS_SETPGID
115# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 116#else
a6e633de 117# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
118# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
119# else
120# ifdef HAS_SETPGRP2 /* DG/UX */
121# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
122# endif
123# endif
124#endif
125#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
126# define HAS_SETPGRP /* Well, effectively it does . . . */
127#endif
128
129/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
130 our life easier :-) so we'll try it.
131*/
132#ifdef HAS_GETPGID
133# define BSD_GETPGRP(pid) getpgid((pid))
134#else
135# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
136# define BSD_GETPGRP(pid) getpgrp((pid))
137# else
138# ifdef HAS_GETPGRP2 /* DG/UX */
139# define BSD_GETPGRP(pid) getpgrp2((pid))
140# endif
141# endif
142#endif
143#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
144# define HAS_GETPGRP /* Well, effectively it does . . . */
145#endif
146
147/* These are not exact synonyms, since setpgrp() and getpgrp() may
148 have different behaviors, but perl.h used to define USE_BSDPGRP
149 (prior to 5.003_05) so some extension might depend on it.
150*/
151#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
152# ifndef USE_BSDPGRP
153# define USE_BSDPGRP
154# endif
663a0e37 155#endif
156
760ac839 157#ifndef _TYPES_ /* If types.h defines this it's easy. */
158# ifndef major /* Does everyone's types.h define this? */
159# include <sys/types.h>
160# endif
161#endif
162
163#ifdef __cplusplus
164# ifndef I_STDARG
165# define I_STDARG 1
166# endif
167#endif
168
169#ifdef I_STDARG
170# include <stdarg.h>
171#else
172# ifdef I_VARARGS
173# include <varargs.h>
174# endif
175#endif
176
177#include "perlio.h"
0c30d9ec 178
4633a7c4 179#ifdef USE_NEXT_CTYPE
0c30d9ec 180
181#if NX_CURRENT_COMPILER_RELEASE >= 400
182#include <objc/NXCType.h>
183#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 184#include <appkit/NXCType.h>
0c30d9ec 185#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
186
187#else /* !USE_NEXT_CTYPE */
fe14fcc3 188#include <ctype.h>
0c30d9ec 189#endif /* USE_NEXT_CTYPE */
a0d0e21e 190
191#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
192#undef METHOD
193#endif
194
36477c24 195#ifdef I_LOCALE
196# include <locale.h>
197#endif
198
199#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
200# define USE_LOCALE
201# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
202 && defined(HAS_STRXFRM)
203# define USE_LOCALE_COLLATE
204# endif
205# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
206# define USE_LOCALE_CTYPE
207# endif
208# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
209# define USE_LOCALE_NUMERIC
210# endif
211#endif /* !NO_LOCALE && HAS_SETLOCALE */
212
fe14fcc3 213#include <setjmp.h>
79072805 214
a0d0e21e 215#ifdef I_SYS_PARAM
79072805 216# ifdef PARAM_NEEDS_TYPES
217# include <sys/types.h>
218# endif
219# include <sys/param.h>
352d5a3a 220#endif
79072805 221
222
223/* Use all the "standard" definitions? */
a0d0e21e 224#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 225# include <stdlib.h>
ff68c719 226#endif
03a14243 227
55497cff 228/* This comes after <stdlib.h> so we don't try to change the standard
229 * library prototypes; we'll use our own in proto.h instead. */
230
4633a7c4 231#ifdef MYMALLOC
55497cff 232
760ac839 233# ifdef HIDEMYMALLOC
55497cff 234# define malloc Mymalloc
235# define calloc Mycalloc
05effc97 236# define realloc Myremalloc
55497cff 237# define free Myfree
238# endif
239# ifdef EMBEDMYMALLOC
240# define malloc Perl_malloc
241# define calloc Perl_calloc
242# define realloc Perl_realloc
243# define free Perl_free
4633a7c4 244# endif
55497cff 245
246# undef safemalloc
247# undef safecalloc
248# undef saferealloc
249# undef safefree
250# define safemalloc malloc
251# define safecalloc calloc
4633a7c4 252# define saferealloc realloc
55497cff 253# define safefree free
254
255#endif /* MYMALLOC */
4633a7c4 256
a0d0e21e 257#define MEM_SIZE Size_t
258
ff68c719 259#if defined(STANDARD_C) && defined(I_STDDEF)
260# include <stddef.h>
71be2cbc 261# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 262#else
71be2cbc 263# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719 264#endif
265
a0d0e21e 266#if defined(I_STRING) || defined(__cplusplus)
267# include <string.h>
268#else
269# include <strings.h>
270#endif
271
272#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
273#define strchr index
274#define strrchr rindex
275#endif
276
16d20bd9 277#ifdef I_MEMORY
278# include <memory.h>
279#endif
280
fe14fcc3 281#ifdef HAS_MEMCPY
85e6fe83 282# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 283# ifndef memcpy
a0d0e21e 284 extern char * memcpy _((char*, char*, int));
ee0007ab 285# endif
286# endif
287#else
288# ifndef memcpy
289# ifdef HAS_BCOPY
290# define memcpy(d,s,l) bcopy(s,d,l)
291# else
292# define memcpy(d,s,l) my_bcopy(s,d,l)
293# endif
294# endif
295#endif /* HAS_MEMCPY */
fe14fcc3 296
ee0007ab 297#ifdef HAS_MEMSET
85e6fe83 298# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 299# ifndef memset
a0d0e21e 300 extern char *memset _((char*, int, int));
ee0007ab 301# endif
302# endif
303# define memzero(d,l) memset(d,0,l)
304#else
305# ifndef memzero
306# ifdef HAS_BZERO
307# define memzero(d,l) bzero(d,l)
308# else
309# define memzero(d,l) my_bzero(d,l)
310# endif
352d5a3a 311# endif
ee0007ab 312#endif /* HAS_MEMSET */
313
85e6fe83 314#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 315# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805 316# define memmove(d,s,l) bcopy(s,d,l)
317# else
2304df62 318# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 319# define memmove(d,s,l) memcpy(d,s,l)
320# else
321# define memmove(d,s,l) my_bcopy(s,d,l)
322# endif
323# endif
d9d8d8de 324#endif
378cc40b 325
36477c24 326#if defined(mips) && defined(ultrix) && !defined(__STDC__)
327# undef HAS_MEMCMP
328#endif
329
330#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
331# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
332# ifndef memcmp
333 extern int memcmp _((char*, char*, int));
334# endif
335# endif
336# ifdef BUGGY_MSC
337 # pragma function(memcmp)
338# endif
339#else
340# ifndef memcmp
341# define memcmp my_memcmp
342# endif
343#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
344
345#ifndef HAS_BCMP
346# ifndef bcmp
347# define bcmp(s1,s2,l) memcmp(s1,s2,l)
348# endif
349#endif /* !HAS_BCMP */
350
ae986130 351#ifdef I_NETINET_IN
79072805 352# include <netinet/in.h>
ae986130 353#endif
354
1aef975c 355#ifdef I_SYS_STAT
8d063cd8 356#include <sys/stat.h>
1aef975c 357#endif
79072805 358
a0d0e21e 359/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
360 like UTekV) are broken, sometimes giving false positives. Undefine
361 them here and let the code below set them to proper values.
362
363 The ghs macro stands for GreenHills Software C-1.8.5 which
364 is the C compiler for sysV88 and the various derivatives.
365 This header file bug is corrected in gcc-2.5.8 and later versions.
366 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
367
368#if defined(uts) || (defined(m88k) && defined(ghs))
79072805 369# undef S_ISDIR
370# undef S_ISCHR
371# undef S_ISBLK
372# undef S_ISREG
373# undef S_ISFIFO
374# undef S_ISLNK
ee0007ab 375#endif
135863df 376
663a0e37 377#ifdef I_TIME
378# include <time.h>
ffed7fef 379#endif
663a0e37 380
fe14fcc3 381#ifdef I_SYS_TIME
85e6fe83 382# ifdef I_SYS_TIME_KERNEL
663a0e37 383# define KERNEL
384# endif
385# include <sys/time.h>
85e6fe83 386# ifdef I_SYS_TIME_KERNEL
663a0e37 387# undef KERNEL
388# endif
a687059c 389#endif
135863df 390
55497cff 391#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 392# include <sys/times.h>
d9d8d8de 393#endif
8d063cd8 394
fe14fcc3 395#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 396# undef HAS_STRERROR
663a0e37 397#endif
398
a0d0e21e 399#ifndef HAS_MKFIFO
400# ifndef mkfifo
401# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
402# endif
403#endif /* !HAS_MKFIFO */
404
663a0e37 405#include <errno.h>
ed6116ce 406#ifdef HAS_SOCKET
85e6fe83 407# ifdef I_NET_ERRNO
ed6116ce 408# include <net/errno.h>
409# endif
410#endif
f86702cc 411
412#ifdef VMS
413# define SETERRNO(errcode,vmserrcode) \
414 STMT_START { \
415 set_errno(errcode); \
416 set_vaxc_errno(vmserrcode); \
417 } STMT_END
748a9306 418#else
f86702cc 419# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 420#endif
ed6116ce 421
55497cff 422#ifndef errno
79072805 423 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 424#endif
663a0e37 425
2304df62 426#ifdef HAS_STRERROR
a0d0e21e 427# ifdef VMS
428 char *strerror _((int,...));
429# else
430 char *strerror _((int));
431# endif
2304df62 432# ifndef Strerror
433# define Strerror strerror
434# endif
435#else
436# ifdef HAS_SYS_ERRLIST
79072805 437 extern int sys_nerr;
438 extern char *sys_errlist[];
2304df62 439# ifndef Strerror
440# define Strerror(e) \
79072805 441 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 442# endif
79072805 443# endif
35c8bce7 444#endif
663a0e37 445
f86702cc 446#ifdef VMS
447# define STATUS_NATIVE statusvalue_vms
448# define STATUS_NATIVE_EXPORT \
ff0cee69 449 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
f86702cc 450# define STATUS_NATIVE_SET(n) \
451 STMT_START { \
452 statusvalue_vms = (n); \
453 if ((I32)statusvalue_vms == -1) \
454 statusvalue = -1; \
455 else if (statusvalue_vms & STS$M_SUCCESS) \
456 statusvalue = 0; \
457 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
458 statusvalue = 1 << 8; \
459 else \
460 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
461 } STMT_END
ff0cee69 462# define STATUS_POSIX statusvalue
463# ifdef VMSISH_STATUS
464# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
465# else
466# define STATUS_CURRENT STATUS_POSIX
467# endif
468# define STATUS_POSIX_SET(n) \
469 STMT_START { \
470 statusvalue = (n); \
471 if (statusvalue != -1) { \
472 statusvalue &= 0xFFFF; \
473 statusvalue_vms = statusvalue ? 44 : 1; \
474 } \
475 else statusvalue_vms = -1; \
476 } STMT_END
f86702cc 477# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
ff0cee69 478# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
f86702cc 479#else
480# define STATUS_NATIVE STATUS_POSIX
481# define STATUS_NATIVE_EXPORT STATUS_POSIX
482# define STATUS_NATIVE_SET STATUS_POSIX_SET
ff0cee69 483# define STATUS_POSIX statusvalue
484# define STATUS_POSIX_SET(n) \
485 STMT_START { \
486 statusvalue = (n); \
487 if (statusvalue != -1) \
488 statusvalue &= 0xFFFF; \
489 } STMT_END
490# define STATUS_CURRENT STATUS_POSIX
91e9c03f 491# define STATUS_ALL_SUCCESS (statusvalue = 0)
492# define STATUS_ALL_FAILURE (statusvalue = 1)
f86702cc 493#endif
494
2304df62 495#ifdef I_SYS_IOCTL
79072805 496# ifndef _IOCTL_
497# include <sys/ioctl.h>
498# endif
a687059c 499#endif
500
ee0007ab 501#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805 502# ifdef HAS_SOCKETPAIR
503# undef HAS_SOCKETPAIR
504# endif
2304df62 505# ifdef I_NDBM
506# undef I_NDBM
79072805 507# endif
a687059c 508#endif
509
a687059c 510#if INTSIZE == 2
79072805 511# define htoni htons
512# define ntohi ntohs
a687059c 513#else
79072805 514# define htoni htonl
515# define ntohi ntohl
a687059c 516#endif
517
a0d0e21e 518/* Configure already sets Direntry_t */
35c8bce7 519#if defined(I_DIRENT)
663a0e37 520# include <dirent.h>
a0d0e21e 521# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
522# include <sys/dir.h>
523# endif
ae986130 524#else
fe14fcc3 525# ifdef I_SYS_NDIR
79a0689e 526# include <sys/ndir.h>
663a0e37 527# else
fe14fcc3 528# ifdef I_SYS_DIR
79a0689e 529# ifdef hp9000s500
530# include <ndir.h> /* may be wrong in the future */
531# else
532# include <sys/dir.h>
533# endif
663a0e37 534# endif
535# endif
4633a7c4 536#endif
a687059c 537
352d5a3a 538#ifdef FPUTS_BOTCH
539/* work around botch in SunOS 4.0.1 and 4.0.2 */
540# ifndef fputs
79072805 541# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a 542# endif
543#endif
544
c623bd54 545/*
546 * The following gobbledygook brought to you on behalf of __STDC__.
547 * (I could just use #ifndef __STDC__, but this is more bulletproof
548 * in the face of half-implementations.)
549 */
550
551#ifndef S_IFMT
552# ifdef _S_IFMT
553# define S_IFMT _S_IFMT
554# else
555# define S_IFMT 0170000
556# endif
557#endif
558
559#ifndef S_ISDIR
560# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
561#endif
562
563#ifndef S_ISCHR
564# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
565#endif
566
567#ifndef S_ISBLK
fe14fcc3 568# ifdef S_IFBLK
569# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
570# else
571# define S_ISBLK(m) (0)
572# endif
c623bd54 573#endif
574
575#ifndef S_ISREG
576# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
577#endif
578
579#ifndef S_ISFIFO
fe14fcc3 580# ifdef S_IFIFO
581# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
582# else
583# define S_ISFIFO(m) (0)
584# endif
c623bd54 585#endif
586
587#ifndef S_ISLNK
588# ifdef _S_ISLNK
589# define S_ISLNK(m) _S_ISLNK(m)
590# else
591# ifdef _S_IFLNK
592# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
593# else
594# ifdef S_IFLNK
595# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
596# else
597# define S_ISLNK(m) (0)
598# endif
599# endif
600# endif
601#endif
602
603#ifndef S_ISSOCK
604# ifdef _S_ISSOCK
605# define S_ISSOCK(m) _S_ISSOCK(m)
606# else
607# ifdef _S_IFSOCK
608# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
609# else
610# ifdef S_IFSOCK
611# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
612# else
613# define S_ISSOCK(m) (0)
614# endif
615# endif
616# endif
617#endif
618
619#ifndef S_IRUSR
620# ifdef S_IREAD
621# define S_IRUSR S_IREAD
622# define S_IWUSR S_IWRITE
623# define S_IXUSR S_IEXEC
624# else
625# define S_IRUSR 0400
626# define S_IWUSR 0200
627# define S_IXUSR 0100
628# endif
629# define S_IRGRP (S_IRUSR>>3)
630# define S_IWGRP (S_IWUSR>>3)
631# define S_IXGRP (S_IXUSR>>3)
632# define S_IROTH (S_IRUSR>>6)
633# define S_IWOTH (S_IWUSR>>6)
634# define S_IXOTH (S_IXUSR>>6)
635#endif
636
637#ifndef S_ISUID
638# define S_ISUID 04000
639#endif
640
641#ifndef S_ISGID
642# define S_ISGID 02000
643#endif
644
79072805 645#ifdef ff_next
646# undef ff_next
352d5a3a 647#endif
648
a0d0e21e 649#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa 650# define SLOPPYDIVIDE
651#endif
652
748a9306 653#ifdef UV
654#undef UV
655#endif
656
27d4fb96 657/* XXX QUAD stuff is not currently supported on most systems.
658 Specifically, perl internals don't support long long. Among
659 the many problems is that some compilers support long long,
660 but the underlying library functions (such as sprintf) don't.
661 Some things do work (such as quad pack/unpack on convex);
662 also some systems use long long for the fpos_t typedef. That
663 seems to work too.
664
665 The IV type is supposed to be long enough to hold any integral
666 value or a pointer.
667 --Andy Dougherty August 1996
668*/
669
f86702cc 670#ifdef cray
671# define Quad_t int
672#else
673# ifdef convex
674# define Quad_t long long
45d8adaa 675# else
ff0cee69 676# if BYTEORDER > 0xFFFF
677# define Quad_t long
45d8adaa 678# endif
679# endif
f86702cc 680#endif
681
682#ifdef Quad_t
683# define HAS_QUAD
748a9306 684 typedef Quad_t IV;
685 typedef unsigned Quad_t UV;
27d4fb96 686# define IV_MAX PERL_QUAD_MAX
687# define IV_MIN PERL_QUAD_MIN
688# define UV_MAX PERL_UQUAD_MAX
689# define UV_MIN PERL_UQUAD_MIN
79072805 690#else
748a9306 691 typedef long IV;
692 typedef unsigned long UV;
27d4fb96 693# define IV_MAX PERL_LONG_MAX
694# define IV_MIN PERL_LONG_MIN
695# define UV_MAX PERL_ULONG_MAX
696# define UV_MIN PERL_ULONG_MIN
79072805 697#endif
698
760ac839 699/* Previously these definitions used hardcoded figures.
700 * It is hoped these formula are more portable, although
701 * no data one way or another is presently known to me.
702 * The "PERL_" names are used because these calculated constants
703 * do not meet the ANSI requirements for LONG_MAX, etc., which
704 * need to be constants acceptable to #if - kja
705 * define PERL_LONG_MAX 2147483647L
706 * define PERL_LONG_MIN (-LONG_MAX - 1)
707 * define PERL ULONG_MAX 4294967295L
708 */
709
710#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
711# include <limits.h>
712#else
713#ifdef I_VALUES
714# include <values.h>
715#endif
716#endif
717
99abf803 718/*
719 * Try to figure out max and min values for the integral types. THE CORRECT
720 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
721 * following hacks are used if neither limits.h or values.h provide them:
722 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
723 * for types < int: (unsigned TYPE)~(unsigned)0
724 * The argument to ~ must be unsigned so that later signed->unsigned
725 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
726 * and it must not be smaller than int because ~ does integral promotion.
727 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
728 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
729 * The latter is a hack which happens to work on some machines but
730 * does *not* catch any random system, or things like integer types
731 * with NaN if that is possible.
732 *
733 * All of the types are explicitly cast to prevent accidental loss of
734 * numeric range, and in the hope that they will be less likely to confuse
735 * over-eager optimizers.
736 *
737 */
27d4fb96 738
99abf803 739#define PERL_UCHAR_MIN ((unsigned char)0)
740
741#ifdef UCHAR_MAX
742# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 743#else
99abf803 744# ifdef MAXUCHAR
745# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 746# else
99abf803 747# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 748# endif
749#endif
99abf803 750
751/*
752 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
753 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
754 * depending on local options. Until Configure detects this (or at least
755 * detects whether the "signed" keyword is available) the CHAR ranges
756 * will not be included. UCHAR functions normally.
757 * - kja
758 */
27d4fb96 759
99abf803 760#define PERL_USHORT_MIN ((unsigned short)0)
761
762#ifdef USHORT_MAX
763# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 764#else
99abf803 765# ifdef MAXUSHORT
766# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 767# else
99abf803 768# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 769# endif
770#endif
771
27d4fb96 772#ifdef SHORT_MAX
99abf803 773# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 774#else
775# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 776# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 777# else
99abf803 778# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 779# endif
780#endif
781
782#ifdef SHORT_MIN
99abf803 783# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 784#else
785# ifdef MINSHORT
99abf803 786# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 787# else
788# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
789# endif
790#endif
791
99abf803 792#ifdef UINT_MAX
793# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 794#else
99abf803 795# ifdef MAXUINT
796# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 797# else
99abf803 798# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 799# endif
800#endif
801
99abf803 802#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 803
804#ifdef INT_MAX
99abf803 805# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 806#else
807# ifdef MAXINT /* Often used in <values.h> */
99abf803 808# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 809# else
99abf803 810# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 811# endif
812#endif
813
814#ifdef INT_MIN
99abf803 815# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 816#else
817# ifdef MININT
99abf803 818# define PERL_INT_MIN ((int)MININT)
27d4fb96 819# else
820# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
821# endif
822#endif
823
99abf803 824#ifdef ULONG_MAX
825# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 826#else
99abf803 827# ifdef MAXULONG
828# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 829# else
99abf803 830# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 831# endif
832#endif
833
99abf803 834#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 835
760ac839 836#ifdef LONG_MAX
99abf803 837# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839 838#else
839# ifdef MAXLONG /* Often used in <values.h> */
99abf803 840# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 841# else
99abf803 842# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839 843# endif
844#endif
845
846#ifdef LONG_MIN
99abf803 847# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839 848#else
849# ifdef MINLONG
99abf803 850# define PERL_LONG_MIN ((long)MINLONG)
760ac839 851# else
27d4fb96 852# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839 853# endif
854#endif
855
99abf803 856#ifdef HAS_QUAD
857
858# ifdef UQUAD_MAX
859# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 860# else
99abf803 861# define PERL_UQUAD_MAX (~(UV)0)
760ac839 862# endif
760ac839 863
99abf803 864# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 865
27d4fb96 866# ifdef QUAD_MAX
99abf803 867# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 868# else
99abf803 869# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 870# endif
871
872# ifdef QUAD_MIN
99abf803 873# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 874# else
a6e633de 875# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 876# endif
877
760ac839 878#endif
879
ee0007ab 880typedef MEM_SIZE STRLEN;
450a55e4 881
79072805 882typedef struct op OP;
883typedef struct cop COP;
884typedef struct unop UNOP;
885typedef struct binop BINOP;
886typedef struct listop LISTOP;
887typedef struct logop LOGOP;
888typedef struct condop CONDOP;
889typedef struct pmop PMOP;
890typedef struct svop SVOP;
891typedef struct gvop GVOP;
892typedef struct pvop PVOP;
79072805 893typedef struct loop LOOP;
894
895typedef struct Outrec Outrec;
93a17b20 896typedef struct interpreter PerlInterpreter;
79072805 897typedef struct ff FF;
79072805 898typedef struct sv SV;
899typedef struct av AV;
900typedef struct hv HV;
901typedef struct cv CV;
378cc40b 902typedef struct regexp REGEXP;
79072805 903typedef struct gp GP;
0c30d9ec 904typedef struct gv GV;
8990e307 905typedef struct io IO;
79072805 906typedef struct context CONTEXT;
907typedef struct block BLOCK;
908
909typedef struct magic MAGIC;
ed6116ce 910typedef struct xrv XRV;
79072805 911typedef struct xpv XPV;
912typedef struct xpviv XPVIV;
ff68c719 913typedef struct xpvuv XPVUV;
79072805 914typedef struct xpvnv XPVNV;
915typedef struct xpvmg XPVMG;
916typedef struct xpvlv XPVLV;
917typedef struct xpvav XPVAV;
918typedef struct xpvhv XPVHV;
919typedef struct xpvgv XPVGV;
920typedef struct xpvcv XPVCV;
921typedef struct xpvbm XPVBM;
922typedef struct xpvfm XPVFM;
8990e307 923typedef struct xpvio XPVIO;
79072805 924typedef struct mgvtbl MGVTBL;
925typedef union any ANY;
8d063cd8 926
378cc40b 927#include "handy.h"
a0d0e21e 928
16d20bd9 929typedef I32 (*filter_t) _((int, SV *, int));
930#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
931#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
932#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
933
748a9306 934#ifdef DOSISH
4633a7c4 935# if defined(OS2)
936# include "os2ish.h"
937# else
748a9306 938# include "dosish.h"
4633a7c4 939# endif
a0d0e21e 940#else
748a9306 941# if defined(VMS)
942# include "vmsish.h"
943# else
0c30d9ec 944# if defined(PLAN9)
945# include "./plan9/plan9ish.h"
946# else
947# include "unixish.h"
948# endif
748a9306 949# endif
950#endif
3fc1aec6 951
952/* Some unistd.h's give a prototype for pause() even though
953 HAS_PAUSE ends up undefined. This causes the #define
954 below to be rejected by the compmiler. Sigh.
955*/
956#ifdef HAS_PAUSE
957#define Pause pause
958#else
959#define Pause() sleep((32767<<16)+32767)
748a9306 960#endif
961
962#ifndef IOCPARM_LEN
963# ifdef IOCPARM_MASK
964 /* on BSDish systes we're safe */
965# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
966# else
967 /* otherwise guess at what's safe */
968# define IOCPARM_LEN(x) 256
969# endif
a0d0e21e 970#endif
971
79072805 972union any {
973 void* any_ptr;
974 I32 any_i32;
a0d0e21e 975 IV any_iv;
85e6fe83 976 long any_long;
a0d0e21e 977 void (*any_dptr) _((void*));
79072805 978};
979
378cc40b 980#include "regexp.h"
79072805 981#include "sv.h"
378cc40b 982#include "util.h"
8d063cd8 983#include "form.h"
79072805 984#include "gv.h"
985#include "cv.h"
986#include "opcode.h"
987#include "op.h"
988#include "cop.h"
989#include "av.h"
990#include "hv.h"
991#include "mg.h"
992#include "scope.h"
8d063cd8 993
4633a7c4 994/* work around some libPW problems */
995#ifdef DOINIT
996EXT char Error[1];
997#endif
998
450a55e4 999#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c 1000# define I286
1001#endif
1002
fe14fcc3 1003#if defined(htonl) && !defined(HAS_HTONL)
1004#define HAS_HTONL
ae986130 1005#endif
fe14fcc3 1006#if defined(htons) && !defined(HAS_HTONS)
1007#define HAS_HTONS
ae986130 1008#endif
fe14fcc3 1009#if defined(ntohl) && !defined(HAS_NTOHL)
1010#define HAS_NTOHL
ae986130 1011#endif
fe14fcc3 1012#if defined(ntohs) && !defined(HAS_NTOHS)
1013#define HAS_NTOHS
ae986130 1014#endif
fe14fcc3 1015#ifndef HAS_HTONL
d9d8d8de 1016#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3 1017#define HAS_HTONS
1018#define HAS_HTONL
1019#define HAS_NTOHS
1020#define HAS_NTOHL
a687059c 1021#define MYSWAP
1022#define htons my_swap
1023#define htonl my_htonl
1024#define ntohs my_swap
1025#define ntohl my_ntohl
1026#endif
1027#else
d9d8d8de 1028#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3 1029#undef HAS_HTONS
1030#undef HAS_HTONL
1031#undef HAS_NTOHS
1032#undef HAS_NTOHL
a687059c 1033#endif
1034#endif
1035
988174c1 1036/*
1037 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1038 * -DWS
1039 */
1040#if BYTEORDER != 0x1234
1041# define HAS_VTOHL
1042# define HAS_VTOHS
1043# define HAS_HTOVL
1044# define HAS_HTOVS
1045# if BYTEORDER == 0x4321
1046# define vtohl(x) ((((x)&0xFF)<<24) \
1047 +(((x)>>24)&0xFF) \
1048 +(((x)&0x0000FF00)<<8) \
1049 +(((x)&0x00FF0000)>>8) )
1050# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1051# define htovl(x) vtohl(x)
1052# define htovs(x) vtohs(x)
1053# endif
1054 /* otherwise default to functions in util.c */
1055#endif
1056
0f85fab0 1057#ifdef CASTNEGFLOAT
79072805 1058#define U_S(what) ((U16)(what))
0f85fab0 1059#define U_I(what) ((unsigned int)(what))
79072805 1060#define U_L(what) ((U32)(what))
0f85fab0 1061#else
a6e633de 1062# ifdef __cplusplus
1063 extern "C" {
1064# endif
a0d0e21e 1065U32 cast_ulong _((double));
a6e633de 1066# ifdef __cplusplus
1067 }
1068# endif
232e078e 1069#define U_S(what) ((U16)cast_ulong((double)(what)))
1070#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1071#define U_L(what) (cast_ulong((double)(what)))
ee0007ab 1072#endif
1073
ed6116ce 1074#ifdef CASTI32
1075#define I_32(what) ((I32)(what))
a0d0e21e 1076#define I_V(what) ((IV)(what))
5d94fbed 1077#define U_V(what) ((UV)(what))
ed6116ce 1078#else
a6e633de 1079# ifdef __cplusplus
1080 extern "C" {
1081# endif
a0d0e21e 1082I32 cast_i32 _((double));
a0d0e21e 1083IV cast_iv _((double));
5d94fbed 1084UV cast_uv _((double));
a6e633de 1085# ifdef __cplusplus
1086 }
1087# endif
1088#define I_32(what) (cast_i32((double)(what)))
1089#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1090#define U_V(what) (cast_uv((double)(what)))
ed6116ce 1091#endif
1092
79072805 1093struct Outrec {
1094 I32 o_lines;
d9d8d8de 1095 char *o_str;
79072805 1096 U32 o_len;
8d063cd8 1097};
1098
352d5a3a 1099#ifndef MAXSYSFD
1100# define MAXSYSFD 2
1101#endif
ee0007ab 1102
f82b3d41 1103#ifndef TMPPATH
1104# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1105#endif
79072805 1106
1107#ifndef __cplusplus
a0d0e21e 1108Uid_t getuid _((void));
1109Uid_t geteuid _((void));
1110Gid_t getgid _((void));
1111Gid_t getegid _((void));
79072805 1112#endif
8d063cd8 1113
1114#ifdef DEBUGGING
0c30d9ec 1115#ifndef Perl_debug_log
760ac839 1116#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1117#endif
d96024cf 1118#define YYDEBUG 1
79072805 1119#define DEB(a) a
1120#define DEBUG(a) if (debug) a
1121#define DEBUG_p(a) if (debug & 1) a
1122#define DEBUG_s(a) if (debug & 2) a
1123#define DEBUG_l(a) if (debug & 4) a
1124#define DEBUG_t(a) if (debug & 8) a
1125#define DEBUG_o(a) if (debug & 16) a
1126#define DEBUG_c(a) if (debug & 32) a
1127#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1128#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805 1129#define DEBUG_f(a) if (debug & 256) a
1130#define DEBUG_r(a) if (debug & 512) a
1131#define DEBUG_x(a) if (debug & 1024) a
1132#define DEBUG_u(a) if (debug & 2048) a
1133#define DEBUG_L(a) if (debug & 4096) a
1134#define DEBUG_H(a) if (debug & 8192) a
1135#define DEBUG_X(a) if (debug & 16384) a
8990e307 1136#define DEBUG_D(a) if (debug & 32768) a
79072805 1137#else
1138#define DEB(a)
1139#define DEBUG(a)
1140#define DEBUG_p(a)
1141#define DEBUG_s(a)
1142#define DEBUG_l(a)
1143#define DEBUG_t(a)
1144#define DEBUG_o(a)
1145#define DEBUG_c(a)
1146#define DEBUG_P(a)
1147#define DEBUG_m(a)
1148#define DEBUG_f(a)
1149#define DEBUG_r(a)
1150#define DEBUG_x(a)
1151#define DEBUG_u(a)
1152#define DEBUG_L(a)
1153#define DEBUG_H(a)
1154#define DEBUG_X(a)
8990e307 1155#define DEBUG_D(a)
8d063cd8 1156#endif
fe14fcc3 1157#define YYMAXDEPTH 300
8d063cd8 1158
a6e633de 1159#ifndef assert /* <assert.h> might have been included somehow */
79072805 1160#define assert(what) DEB( { \
1161 if (!(what)) { \
463ee0b2 1162 croak("Assertion failed: file \"%s\", line %d", \
79072805 1163 __FILE__, __LINE__); \
1164 exit(1); \
1165 }})
a6e633de 1166#endif
8d063cd8 1167
450a55e4 1168struct ufuncs {
a0d0e21e 1169 I32 (*uf_val)_((IV, SV*));
1170 I32 (*uf_set)_((IV, SV*));
1171 IV uf_index;
450a55e4 1172};
1173
fe14fcc3 1174/* Fix these up for __STDC__ */
a0d0e21e 1175#ifndef __cplusplus
1176char *mktemp _((char*));
1177double atof _((const char*));
1178#endif
79072805 1179
352d5a3a 1180#ifndef STANDARD_C
fe14fcc3 1181/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1182Time_t time();
8d063cd8 1183struct tm *gmtime(), *localtime();
93a17b20 1184char *strchr(), *strrchr();
378cc40b 1185char *strcpy(), *strcat();
352d5a3a 1186#endif /* ! STANDARD_C */
8d063cd8 1187
79072805 1188
1189#ifdef I_MATH
1190# include <math.h>
1191#else
1192# ifdef __cplusplus
1193 extern "C" {
1194# endif
a0d0e21e 1195 double exp _((double));
a0d0e21e 1196 double log _((double));
1197 double sqrt _((double));
1198 double modf _((double,double*));
1199 double sin _((double));
1200 double cos _((double));
1201 double atan2 _((double,double));
1202 double pow _((double,double));
79072805 1203# ifdef __cplusplus
1204 };
1205# endif
1206#endif
1207
a0d0e21e 1208#ifndef __cplusplus
3fc1aec6 1209#ifdef __NeXT__ /* or whatever catches all NeXTs */
1210char *crypt (); /* Maybe more hosts will need the unprototyped version */
1211#else
a0d0e21e 1212char *crypt _((const char*, const char*));
3fc1aec6 1213#endif
a0d0e21e 1214char *getenv _((const char*));
1215Off_t lseek _((int,Off_t,int));
1216char *getlogin _((void));
1217#endif
79072805 1218
16d20bd9 1219#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1220#define UNLINK unlnk
a0d0e21e 1221I32 unlnk _((char*));
8d063cd8 1222#else
1223#define UNLINK unlink
1224#endif
a687059c 1225
fe14fcc3 1226#ifndef HAS_SETREUID
85e6fe83 1227# ifdef HAS_SETRESUID
1228# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1229# define HAS_SETREUID
1230# endif
a687059c 1231#endif
fe14fcc3 1232#ifndef HAS_SETREGID
85e6fe83 1233# ifdef HAS_SETRESGID
1234# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1235# define HAS_SETREGID
1236# endif
a687059c 1237#endif
ee0007ab 1238
ff68c719 1239typedef Signal_t (*Sighandler_t) _((int));
1240
1241#ifdef HAS_SIGACTION
1242typedef struct sigaction Sigsave_t;
1243#else
1244typedef Sighandler_t Sigsave_t;
1245#endif
1246
ee0007ab 1247#define SCAN_DEF 0
1248#define SCAN_TR 1
1249#define SCAN_REPL 2
79072805 1250
1251#ifdef DEBUGGING
4633a7c4 1252# ifndef register
a0d0e21e 1253# define register
1254# endif
55497cff 1255# ifdef MYMALLOC
1256# ifndef DEBUGGING_MSTATS
1257# define DEBUGGING_MSTATS
1258# endif
1259# endif
a0d0e21e 1260# define PAD_SV(po) pad_sv(po)
79072805 1261#else
a0d0e21e 1262# define PAD_SV(po) curpad[po]
79072805 1263#endif
1264
1265/****************/
1266/* Truly global */
1267/****************/
1268
1269/* global state */
a0d0e21e 1270EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec 1271/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1272#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
79072805 1273extern char ** environ; /* environment variables supplied via exec */
0c30d9ec 1274#else
1275# if defined(NeXT) && defined(__DYNAMIC__)
1276
1277# include <mach-o/dyld.h>
1278EXT char *** environ_pointer;
1279# define environ (*environ_pointer)
1280# endif
1281#endif /* environ processing */
1282
79072805 1283EXT int uid; /* current real user id */
1284EXT int euid; /* current effective user id */
1285EXT int gid; /* current real group id */
1286EXT int egid; /* current effective group id */
1287EXT bool nomemok; /* let malloc context handle nomem */
1288EXT U32 an; /* malloc sequence number */
463ee0b2 1289EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1290EXT U16 op_seqmax; /* op sequence number */
8990e307 1291EXT U32 evalseq; /* eval sequence number */
463ee0b2 1292EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805 1293EXT char ** origenviron;
1294EXT U32 origalen;
44a8e56a 1295EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1296EXT U32 * profiledata;
84ea024a 1297EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1298EXT char * osname; /* operating system */
ff68c719 1299EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1300
a0d0e21e 1301EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1302EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307 1303EXT double * xnv_root; /* free xnv list--shared by interpreters */
1304EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1305EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1306EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1307EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1308EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1309
79072805 1310/* Stack for currently executing thread--context switch must handle this. */
1311EXT SV ** stack_base; /* stack->array_ary */
1312EXT SV ** stack_sp; /* stack pointer now */
1313EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1314
1315/* likewise for these */
1316
1317EXT OP * op; /* current op--oughta be in a global register */
1318
1319EXT I32 * scopestack; /* blocks we've entered */
1320EXT I32 scopestack_ix;
1321EXT I32 scopestack_max;
1322
1323EXT ANY* savestack; /* to save non-local values on */
1324EXT I32 savestack_ix;
1325EXT I32 savestack_max;
1326
1327EXT OP ** retstack; /* returns we've pushed */
1328EXT I32 retstack_ix;
1329EXT I32 retstack_max;
1330
1331EXT I32 * markstack; /* stackmarks we're remembering */
1332EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1333EXT I32 * markstack_max; /* stackmarks we're remembering */
1334
1335EXT SV ** curpad;
1336
1337/* temp space */
1338EXT SV * Sv;
1339EXT XPV * Xpv;
f82b3d41 1340EXT char buf[2048]; /* should be longer than PATH_MAX */
79072805 1341EXT char tokenbuf[256];
1342EXT struct stat statbuf;
ecfc5424 1343#ifdef HAS_TIMES
79072805 1344EXT struct tms timesbuf;
1345#endif
463ee0b2 1346EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805 1347
1348/* for tmp use in stupid debuggers */
1349EXT int * di;
1350EXT short * ds;
1351EXT char * dc;
1352
1353/* handy constants */
71be2cbc 1354EXTCONST char * Yes INIT("1");
1355EXTCONST char * No INIT("");
1356EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1357EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1358EXTCONST char * vert INIT("|");
79072805 1359
71be2cbc 1360EXTCONST char warn_uninit[]
a0d0e21e 1361 INIT("Use of uninitialized value");
71be2cbc 1362EXTCONST char warn_nosemi[]
463ee0b2 1363 INIT("Semicolon seems to be missing");
71be2cbc 1364EXTCONST char warn_reserved[]
463ee0b2 1365 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1366EXTCONST char warn_nl[]
93a17b20 1367 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1368EXTCONST char no_wrongref[]
a0d0e21e 1369 INIT("Can't use %s ref as %s ref");
71be2cbc 1370EXTCONST char no_symref[]
748a9306 1371 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1372EXTCONST char no_usym[]
8990e307 1373 INIT("Can't use an undefined value as %s reference");
71be2cbc 1374EXTCONST char no_aelem[]
93a17b20 1375 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1376EXTCONST char no_helem[]
93a17b20 1377 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1378EXTCONST char no_modify[]
93a17b20 1379 INIT("Modification of a read-only value attempted");
71be2cbc 1380EXTCONST char no_mem[]
93a17b20 1381 INIT("Out of memory!\n");
71be2cbc 1382EXTCONST char no_security[]
463ee0b2 1383 INIT("Insecure dependency in %s%s");
71be2cbc 1384EXTCONST char no_sock_func[]
93a17b20 1385 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1386EXTCONST char no_dir_func[]
93a17b20 1387 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1388EXTCONST char no_func[]
93a17b20 1389 INIT("The %s function is unimplemented");
71be2cbc 1390EXTCONST char no_myglob[]
748a9306 1391 INIT("\"my\" variable %s can't be in a package");
93a17b20 1392
79072805 1393EXT SV sv_undef;
1394EXT SV sv_no;
1395EXT SV sv_yes;
1396#ifdef CSH
1397 EXT char * cshname INIT(CSH);
1398 EXT I32 cshlen;
1399#endif
1400
1401#ifdef DOINIT
8e07c86e 1402EXT char *sig_name[] = { SIG_NAME };
1403EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1404EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1405EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805 1406#else
1407EXT char *sig_name[];
8e07c86e 1408EXT int sig_num[];
0c30d9ec 1409EXT SV * psig_ptr[];
1410EXT SV * psig_name[];
79072805 1411#endif
1412
bbce6d69 1413/* fast case folding tables */
1414
79072805 1415#ifdef DOINIT
36477c24 1416EXTCONST unsigned char fold[] = {
79072805 1417 0, 1, 2, 3, 4, 5, 6, 7,
1418 8, 9, 10, 11, 12, 13, 14, 15,
1419 16, 17, 18, 19, 20, 21, 22, 23,
1420 24, 25, 26, 27, 28, 29, 30, 31,
1421 32, 33, 34, 35, 36, 37, 38, 39,
1422 40, 41, 42, 43, 44, 45, 46, 47,
1423 48, 49, 50, 51, 52, 53, 54, 55,
1424 56, 57, 58, 59, 60, 61, 62, 63,
1425 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1426 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1427 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1428 'x', 'y', 'z', 91, 92, 93, 94, 95,
1429 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1430 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1431 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1432 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1433 128, 129, 130, 131, 132, 133, 134, 135,
1434 136, 137, 138, 139, 140, 141, 142, 143,
1435 144, 145, 146, 147, 148, 149, 150, 151,
1436 152, 153, 154, 155, 156, 157, 158, 159,
1437 160, 161, 162, 163, 164, 165, 166, 167,
1438 168, 169, 170, 171, 172, 173, 174, 175,
1439 176, 177, 178, 179, 180, 181, 182, 183,
1440 184, 185, 186, 187, 188, 189, 190, 191,
1441 192, 193, 194, 195, 196, 197, 198, 199,
1442 200, 201, 202, 203, 204, 205, 206, 207,
1443 208, 209, 210, 211, 212, 213, 214, 215,
1444 216, 217, 218, 219, 220, 221, 222, 223,
1445 224, 225, 226, 227, 228, 229, 230, 231,
1446 232, 233, 234, 235, 236, 237, 238, 239,
1447 240, 241, 242, 243, 244, 245, 246, 247,
1448 248, 249, 250, 251, 252, 253, 254, 255
1449};
1450#else
71be2cbc 1451EXTCONST unsigned char fold[];
79072805 1452#endif
1453
1454#ifdef DOINIT
bbce6d69 1455EXT unsigned char fold_locale[] = {
1456 0, 1, 2, 3, 4, 5, 6, 7,
1457 8, 9, 10, 11, 12, 13, 14, 15,
1458 16, 17, 18, 19, 20, 21, 22, 23,
1459 24, 25, 26, 27, 28, 29, 30, 31,
1460 32, 33, 34, 35, 36, 37, 38, 39,
1461 40, 41, 42, 43, 44, 45, 46, 47,
1462 48, 49, 50, 51, 52, 53, 54, 55,
1463 56, 57, 58, 59, 60, 61, 62, 63,
1464 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1465 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1466 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1467 'x', 'y', 'z', 91, 92, 93, 94, 95,
1468 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1469 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1470 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1471 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1472 128, 129, 130, 131, 132, 133, 134, 135,
1473 136, 137, 138, 139, 140, 141, 142, 143,
1474 144, 145, 146, 147, 148, 149, 150, 151,
1475 152, 153, 154, 155, 156, 157, 158, 159,
1476 160, 161, 162, 163, 164, 165, 166, 167,
1477 168, 169, 170, 171, 172, 173, 174, 175,
1478 176, 177, 178, 179, 180, 181, 182, 183,
1479 184, 185, 186, 187, 188, 189, 190, 191,
1480 192, 193, 194, 195, 196, 197, 198, 199,
1481 200, 201, 202, 203, 204, 205, 206, 207,
1482 208, 209, 210, 211, 212, 213, 214, 215,
1483 216, 217, 218, 219, 220, 221, 222, 223,
1484 224, 225, 226, 227, 228, 229, 230, 231,
1485 232, 233, 234, 235, 236, 237, 238, 239,
1486 240, 241, 242, 243, 244, 245, 246, 247,
1487 248, 249, 250, 251, 252, 253, 254, 255
1488};
1489#else
1490EXT unsigned char fold_locale[];
1491#endif
1492
1493#ifdef DOINIT
71be2cbc 1494EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805 1495 1, 2, 84, 151, 154, 155, 156, 157,
1496 165, 246, 250, 3, 158, 7, 18, 29,
1497 40, 51, 62, 73, 85, 96, 107, 118,
1498 129, 140, 147, 148, 149, 150, 152, 153,
1499 255, 182, 224, 205, 174, 176, 180, 217,
1500 233, 232, 236, 187, 235, 228, 234, 226,
1501 222, 219, 211, 195, 188, 193, 185, 184,
1502 191, 183, 201, 229, 181, 220, 194, 162,
1503 163, 208, 186, 202, 200, 218, 198, 179,
1504 178, 214, 166, 170, 207, 199, 209, 206,
1505 204, 160, 212, 216, 215, 192, 175, 173,
1506 243, 172, 161, 190, 203, 189, 164, 230,
1507 167, 248, 227, 244, 242, 255, 241, 231,
1508 240, 253, 169, 210, 245, 237, 249, 247,
1509 239, 168, 252, 251, 254, 238, 223, 221,
1510 213, 225, 177, 197, 171, 196, 159, 4,
1511 5, 6, 8, 9, 10, 11, 12, 13,
1512 14, 15, 16, 17, 19, 20, 21, 22,
1513 23, 24, 25, 26, 27, 28, 30, 31,
1514 32, 33, 34, 35, 36, 37, 38, 39,
1515 41, 42, 43, 44, 45, 46, 47, 48,
1516 49, 50, 52, 53, 54, 55, 56, 57,
1517 58, 59, 60, 61, 63, 64, 65, 66,
1518 67, 68, 69, 70, 71, 72, 74, 75,
1519 76, 77, 78, 79, 80, 81, 82, 83,
1520 86, 87, 88, 89, 90, 91, 92, 93,
1521 94, 95, 97, 98, 99, 100, 101, 102,
1522 103, 104, 105, 106, 108, 109, 110, 111,
1523 112, 113, 114, 115, 116, 117, 119, 120,
1524 121, 122, 123, 124, 125, 126, 127, 128,
1525 130, 131, 132, 133, 134, 135, 136, 137,
1526 138, 139, 141, 142, 143, 144, 145, 146
1527};
1528#else
71be2cbc 1529EXTCONST unsigned char freq[];
79072805 1530#endif
1531
8990e307 1532#ifdef DEBUGGING
1533#ifdef DOINIT
71be2cbc 1534EXTCONST char* block_type[] = {
8990e307 1535 "NULL",
1536 "SUB",
1537 "EVAL",
1538 "LOOP",
1539 "SUBST",
1540 "BLOCK",
1541};
1542#else
71be2cbc 1543EXTCONST char* block_type[];
8990e307 1544#endif
1545#endif
1546
79072805 1547/*****************************************************************************/
1548/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1549/*****************************************************************************/
8990e307 1550/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1551
a0d0e21e 1552#include "perly.h"
1553
79072805 1554typedef enum {
1555 XOPERATOR,
1556 XTERM,
79072805 1557 XREF,
8990e307 1558 XSTATE,
a0d0e21e 1559 XBLOCK,
1560 XTERMBLOCK
79072805 1561} expectation;
1562
a0d0e21e 1563EXT U32 lex_state; /* next token is determined */
1564EXT U32 lex_defer; /* state after determined token */
1565EXT expectation lex_expect; /* expect after determined token */
1566EXT I32 lex_brackets; /* bracket count */
1567EXT I32 lex_formbrack; /* bracket count at outer format level */
1568EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1569EXT I32 lex_casemods; /* casemod count */
1570EXT I32 lex_dojoin; /* doing an array interpolation */
1571EXT I32 lex_starts; /* how many interps done on level */
1572EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1573EXT SV * lex_repl; /* runtime replacement from s/// */
1574EXT OP * lex_op; /* extra info to pass back on op */
1575EXT OP * lex_inpat; /* in pattern $) and $| are special */
1576EXT I32 lex_inwhat; /* what kind of quoting are we in */
1577EXT char * lex_brackstack; /* what kind of brackets to pop */
1578EXT char * lex_casestack; /* what kind of case mods in effect */
1579
1580/* What we know when we're in LEX_KNOWNEXT state. */
1581EXT YYSTYPE nextval[5]; /* value of next token, if any */
1582EXT I32 nexttype[5]; /* type of next token */
1583EXT I32 nexttoke;
1584
760ac839 1585EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805 1586EXT SV * linestr;
1587EXT char * bufptr;
1588EXT char * oldbufptr;
1589EXT char * oldoldbufptr;
1590EXT char * bufend;
8990e307 1591EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1592EXT AV * rsfp_filters;
79072805 1593
1594EXT I32 multi_start; /* 1st line of multi-line string */
1595EXT I32 multi_end; /* last line of multi-line string */
1596EXT I32 multi_open; /* delimiter of said string */
1597EXT I32 multi_close; /* delimiter of said string */
1598
1599EXT GV * scrgv;
1600EXT I32 error_count; /* how many errors so far, max 10 */
1601EXT I32 subline; /* line this subroutine began on */
1602EXT SV * subname; /* name of current subroutine */
1603
748a9306 1604EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1605EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307 1606EXT AV * comppad_name; /* variable names for "my" variables */
1607EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1608EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307 1609EXT I32 min_intro_pending;/* start of vars to introduce */
1610EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1611EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1612EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1613EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805 1614EXT COP compiling;
1615
79072805 1616EXT I32 thisexpr; /* name id for nothing_in_common() */
1617EXT char * last_uni; /* position of last named-unary operator */
1618EXT char * last_lop; /* position of last list operator */
8990e307 1619EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1620EXT bool in_my; /* we're compiling a "my" declaration */
79072805 1621#ifdef FCRYPT
1622EXT I32 cryptseen; /* has fast crypt() been initialized? */
1623#endif
1624
85e6fe83 1625EXT U32 hints; /* various compilation flags */
1626
1627 /* Note: the lowest 8 bits are reserved for
1628 stuffing into op->op_private */
1629#define HINT_INTEGER 0x00000001
1630#define HINT_STRICT_REFS 0x00000002
1631
1632#define HINT_BLOCK_SCOPE 0x00000100
1633#define HINT_STRICT_SUBS 0x00000200
1634#define HINT_STRICT_VARS 0x00000400
bbce6d69 1635#define HINT_LOCALE 0x00000800
85e6fe83 1636
79072805 1637/**************************************************************************/
1638/* This regexp stuff is global since it always happens within 1 expr eval */
1639/**************************************************************************/
1640
1641EXT char * regprecomp; /* uncompiled string. */
1642EXT char * regparse; /* Input-scan pointer. */
1643EXT char * regxend; /* End of input for compile */
1644EXT I32 regnpar; /* () count. */
1645EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1646EXT I32 regsize; /* Code size. */
a0d0e21e 1647EXT I32 regnaughty; /* How bad is this pattern? */
79072805 1648EXT I32 regsawback; /* Did we see \1, ...? */
1649
1650EXT char * reginput; /* String-input pointer. */
79072805 1651EXT char * regbol; /* Beginning of input, for ^ check. */
1652EXT char * regeol; /* End of input, for $ check. */
1653EXT char ** regstartp; /* Pointer to startp array. */
1654EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1655EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1656EXT char * regtill; /* How far we are required to go. */
a0d0e21e 1657EXT U16 regflags; /* are we folding, multilining? */
1658EXT char regprev; /* char before regbol, \n if none */
79072805 1659
760ac839 1660EXT bool do_undump; /* -u or dump seen? */
1661EXT VOL U32 debug;
1662
79072805 1663/***********************************************/
1664/* Global only to current interpreter instance */
1665/***********************************************/
1666
8990e307 1667#ifdef MULTIPLICITY
79072805 1668#define IEXT
1669#define IINIT(x)
1670struct interpreter {
1671#else
1672#define IEXT EXT
1673#define IINIT(x) INIT(x)
1674#endif
1675
1676/* pseudo environmental stuff */
1677IEXT int Iorigargc;
1678IEXT char ** Iorigargv;
1679IEXT GV * Ienvgv;
1680IEXT GV * Isiggv;
1681IEXT GV * Iincgv;
1682IEXT char * Iorigfilename;
748a9306 1683IEXT SV * Idiehook;
1684IEXT SV * Iwarnhook;
1685IEXT SV * Iparsehook;
79072805 1686
c07a80fd 1687/* Various states of an input record separator SV (rs, nrs) */
1688#define RsSNARF(sv) (! SvOK(sv))
1689#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1690#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1691
79072805 1692/* switches */
1693IEXT char * Icddir;
1694IEXT bool Iminus_c;
a5f75d66 1695IEXT char Ipatchlevel[10];
728e2803 1696IEXT char ** Ilocalpatches;
c07a80fd 1697IEXT SV * Inrs;
2304df62 1698IEXT char * Isplitstr IINIT(" ");
79072805 1699IEXT bool Ipreprocess;
1700IEXT bool Iminus_n;
1701IEXT bool Iminus_p;
1702IEXT bool Iminus_l;
1703IEXT bool Iminus_a;
2304df62 1704IEXT bool Iminus_F;
79072805 1705IEXT bool Idoswitches;
1706IEXT bool Idowarn;
1707IEXT bool Idoextract;
79072805 1708IEXT bool Isawampersand; /* must save all match strings */
1709IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805 1710IEXT bool Isawvec;
1711IEXT bool Iunsafe;
79072805 1712IEXT char * Iinplace;
1713IEXT char * Ie_tmpname;
760ac839 1714IEXT PerlIO * Ie_fp;
79072805 1715IEXT U32 Iperldb;
748a9306 1716 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1717IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805 1718
1719/* magical thingies */
85e6fe83 1720IEXT Time_t Ibasetime; /* $^T */
79072805 1721IEXT SV * Iformfeed; /* $^L */
1722IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1723IEXT SV * Irs; /* $/ */
79072805 1724IEXT char * Iofs; /* $, */
8990e307 1725IEXT STRLEN Iofslen;
79072805 1726IEXT char * Iors; /* $\ */
8990e307 1727IEXT STRLEN Iorslen;
79072805 1728IEXT char * Iofmt; /* $# */
1729IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1730IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1731IEXT I32 Istatusvalue; /* $? */
f86702cc 1732#ifdef VMS
ff0cee69 1733IEXT U32 Istatusvalue_vms;
f86702cc 1734#endif
79072805 1735
1736IEXT struct stat Istatcache; /* _ */
1737IEXT GV * Istatgv;
1738IEXT SV * Istatname IINIT(Nullsv);
1739
1740/* shortcuts to various I/O objects */
1741IEXT GV * Istdingv;
1742IEXT GV * Ilast_in_gv;
1743IEXT GV * Idefgv;
1744IEXT GV * Iargvgv;
1745IEXT GV * Idefoutgv;
79072805 1746IEXT GV * Iargvoutgv;
1747
1748/* shortcuts to regexp stuff */
1749IEXT GV * Ileftgv;
1750IEXT GV * Iampergv;
1751IEXT GV * Irightgv;
1752IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805 1753IEXT I32 * Iscreamfirst;
1754IEXT I32 * Iscreamnext;
1755IEXT I32 Imaxscream IINIT(-1);
1756IEXT SV * Ilastscream;
1757
4633a7c4 1758/* shortcuts to misc objects */
1759IEXT GV * Ierrgv;
1760
79072805 1761/* shortcuts to debugging objects */
1762IEXT GV * IDBgv;
1763IEXT GV * IDBline;
1764IEXT GV * IDBsub;
1765IEXT SV * IDBsingle;
1766IEXT SV * IDBtrace;
1767IEXT SV * IDBsignal;
1768IEXT AV * Ilineary; /* lines of script for debugger */
1769IEXT AV * Idbargs; /* args to call listed by caller function */
1770
1771/* symbol tables */
1772IEXT HV * Idefstash; /* main symbol table */
1773IEXT HV * Icurstash; /* symbol table for current package */
1774IEXT HV * Idebstash; /* symbol table for perldb package */
1775IEXT SV * Icurstname; /* name of current package */
93a17b20 1776IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1777IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1778IEXT HV * Istrtab; /* shared string table */
79072805 1779
1780/* memory management */
79072805 1781IEXT SV ** Itmps_stack;
1782IEXT I32 Itmps_ix IINIT(-1);
1783IEXT I32 Itmps_floor IINIT(-1);
8990e307 1784IEXT I32 Itmps_max;
1785IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1786IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307 1787IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1788IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805 1789
1790/* funky return mechanisms */
1791IEXT I32 Ilastspbase;
1792IEXT I32 Ilastsize;
1793IEXT int Iforkprocess; /* so do_open |- can return proc# */
1794
1795/* subprocess state */
1796IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805 1797
1798/* internal state */
463ee0b2 1799IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1800IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1801IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1802IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1803IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1804IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1805IEXT bool Itainting; /* doing taint checks */
e50aee73 1806IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805 1807
1808/* trace state */
1809IEXT I32 Idlevel;
1810IEXT I32 Idlmax IINIT(128);
1811IEXT char * Idebname;
1812IEXT char * Idebdelim;
1813
1814/* current interpreter roots */
748a9306 1815IEXT CV * Imain_cv;
463ee0b2 1816IEXT OP * Imain_root;
1817IEXT OP * Imain_start;
1818IEXT OP * Ieval_root;
1819IEXT OP * Ieval_start;
79072805 1820
1821/* runtime control stuff */
1822IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1823IEXT COP * Icurcopdb IINIT(NULL);
79072805 1824IEXT line_t Icopline IINIT(NOLINE);
1825IEXT CONTEXT * Icxstack;
1826IEXT I32 Icxstack_ix IINIT(-1);
1827IEXT I32 Icxstack_max IINIT(128);
a5f75d66 1828IEXT Sigjmp_buf Itop_env;
a0d0e21e 1829IEXT I32 Irunlevel;
40f788c4 1830IEXT bool Imustcatch; /* doeval() must be caught locally */
79072805 1831
1832/* stack stuff */
0c30d9ec 1833IEXT AV * Icurstack; /* THE STACK */
79072805 1834IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1835IEXT SV ** Imystack_base; /* stack->array_ary */
1836IEXT SV ** Imystack_sp; /* stack pointer now */
1837IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1838
1839/* format accumulators */
463ee0b2 1840IEXT SV * Iformtarget;
1841IEXT SV * Ibodytarget;
1842IEXT SV * Itoptarget;
79072805 1843
1844/* statics moved here for shared library purposes */
93a17b20 1845IEXT SV Istrchop; /* return value from chop */
79072805 1846IEXT int Ifilemode; /* so nextargv() can preserve mode */
1847IEXT int Ilastfd; /* what to preserve mode on */
1848IEXT char * Ioldname; /* what to preserve mode on */
1849IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1850IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1851IEXT OP * Isortcop; /* user defined sort routine */
1852IEXT HV * Isortstash; /* which is in some package or other */
1853IEXT GV * Ifirstgv; /* $a */
1854IEXT GV * Isecondgv; /* $b */
1855IEXT AV * Isortstack; /* temp stack during pp_sort() */
1856IEXT AV * Isignalstack; /* temp stack during sighandler() */
1857IEXT SV * Imystrk; /* temp key string for do_each() */
1858IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805 1859IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1860IEXT I32 Igensym; /* next symbol for getsym() to define */
1861IEXT bool Ipreambled;
3c81428c 1862IEXT AV * Ipreambleav;
79072805 1863IEXT int Ilaststatval IINIT(-1);
1864IEXT I32 Ilaststype IINIT(OP_STAT);
1865
1866#undef IEXT
1867#undef IINIT
1868
8990e307 1869#ifdef MULTIPLICITY
79072805 1870};
1871#else
1872struct interpreter {
1873 char broiled;
1874};
1875#endif
1876
1877#include "pp.h"
1878
1879#ifdef __cplusplus
1880extern "C" {
1881#endif
1882
1883#include "proto.h"
1884
a0d0e21e 1885#ifdef EMBED
1886#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1887#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1888#else
1889#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1890#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1891#endif
1892
79072805 1893#ifdef __cplusplus
1894};
1895#endif
1896
93a17b20 1897/* The following must follow proto.h */
79072805 1898
1899#ifdef DOINIT
bbce6d69 1900
4633a7c4 1901EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2 1902 magic_set,
1903 magic_len,
1904 0, 0};
4633a7c4 1905EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1906EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83 1907 0, magic_clearenv,
1908 0};
4633a7c4 1909EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1910EXT MGVTBL vtbl_sigelem = {magic_getsig,
1911 magic_setsig,
1912 0, magic_clearsig,
1913 0};
4633a7c4 1914EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1915 0};
4633a7c4 1916EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2 1917 magic_setpack,
1918 0, magic_clearpack,
1919 0};
4633a7c4 1920EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1921 0, 0, 0};
4633a7c4 1922EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1923 0, 0, 0};
4633a7c4 1924EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1925 0, 0, 0};
4633a7c4 1926EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2 1927 magic_setarylen,
1928 0, 0, 0};
4633a7c4 1929EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2 1930 magic_setglob,
1931 0, 0, 0};
4633a7c4 1932EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1933 0, 0, 0};
99abf803 1934EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1935 0, 0, 0};
4633a7c4 1936EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1937 0, 0, 0};
4633a7c4 1938EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1939 0, 0, 0};
4633a7c4 1940EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1941 0, 0, 0};
4633a7c4 1942EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e 1943 magic_setpos,
1944 0, 0, 0};
4633a7c4 1945EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1946 0, 0, 0};
55497cff 1947EXT MGVTBL vtbl_fm = {0, magic_setfm,
1948 0, 0, 0};
4633a7c4 1949EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2 1950 magic_setuvar,
1951 0, 0, 0};
71be2cbc 1952EXT MGVTBL vtbl_itervar = {magic_getitervar,magic_setitervar,
1953 0, 0, magic_freeitervar};
a0d0e21e 1954
36477c24 1955#ifdef USE_LOCALE_COLLATE
bbce6d69 1956EXT MGVTBL vtbl_collxfrm = {0,
1957 magic_setcollxfrm,
1958 0, 0, 0};
1959#endif
1960
a0d0e21e 1961#ifdef OVERLOAD
4633a7c4 1962EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1963 0, 0, magic_setamagic};
4633a7c4 1964EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1965 0, 0, magic_setamagic};
a0d0e21e 1966#endif /* OVERLOAD */
1967
bbce6d69 1968#else /* !DOINIT */
1969
79072805 1970EXT MGVTBL vtbl_sv;
1971EXT MGVTBL vtbl_env;
1972EXT MGVTBL vtbl_envelem;
1973EXT MGVTBL vtbl_sig;
1974EXT MGVTBL vtbl_sigelem;
463ee0b2 1975EXT MGVTBL vtbl_pack;
1976EXT MGVTBL vtbl_packelem;
79072805 1977EXT MGVTBL vtbl_dbline;
463ee0b2 1978EXT MGVTBL vtbl_isa;
1979EXT MGVTBL vtbl_isaelem;
79072805 1980EXT MGVTBL vtbl_arylen;
1981EXT MGVTBL vtbl_glob;
93a17b20 1982EXT MGVTBL vtbl_mglob;
99abf803 1983EXT MGVTBL vtbl_nkeys;
463ee0b2 1984EXT MGVTBL vtbl_taint;
79072805 1985EXT MGVTBL vtbl_substr;
1986EXT MGVTBL vtbl_vec;
a0d0e21e 1987EXT MGVTBL vtbl_pos;
79072805 1988EXT MGVTBL vtbl_bm;
55497cff 1989EXT MGVTBL vtbl_fm;
79072805 1990EXT MGVTBL vtbl_uvar;
71be2cbc 1991EXT MGVTBL vtbl_itervar;
a0d0e21e 1992
36477c24 1993#ifdef USE_LOCALE_COLLATE
bbce6d69 1994EXT MGVTBL vtbl_collxfrm;
1995#endif
1996
a0d0e21e 1997#ifdef OVERLOAD
1998EXT MGVTBL vtbl_amagic;
1999EXT MGVTBL vtbl_amagicelem;
2000#endif /* OVERLOAD */
2001
bbce6d69 2002#endif /* !DOINIT */
85e6fe83 2003
a0d0e21e 2004#ifdef OVERLOAD
c0315cdf 2005
a0d0e21e 2006EXT long amagic_generation;
2007
a6006777 2008#define NofAMmeth 58
a0d0e21e 2009#ifdef DOINIT
a6006777 2010EXTCONST char * AMG_names[NofAMmeth] = {
2011 "fallback", "abs", /* "fallback" should be the first. */
2012 "bool", "nomethod",
2013 "\"\"", "0+",
2014 "+", "+=",
2015 "-", "-=",
2016 "*", "*=",
2017 "/", "/=",
2018 "%", "%=",
2019 "**", "**=",
2020 "<<", "<<=",
2021 ">>", ">>=",
2022 "&", "&=",
2023 "|", "|=",
2024 "^", "^=",
2025 "<", "<=",
2026 ">", ">=",
2027 "==", "!=",
2028 "<=>", "cmp",
2029 "lt", "le",
2030 "gt", "ge",
2031 "eq", "ne",
2032 "!", "~",
2033 "++", "--",
2034 "atan2", "cos",
2035 "sin", "exp",
2036 "log", "sqrt",
2037 "x", "x=",
2038 ".", ".=",
2039 "=", "neg"
a0d0e21e 2040};
2041#else
a6006777 2042EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e 2043#endif /* def INITAMAGIC */
2044
a6006777 2045struct am_table {
a0d0e21e 2046 long was_ok_sub;
2047 long was_ok_am;
a6006777 2048 U32 flags;
2049 CV* table[NofAMmeth];
a0d0e21e 2050 long fallback;
2051};
a6006777 2052struct am_table_short {
2053 long was_ok_sub;
2054 long was_ok_am;
2055 U32 flags;
2056};
a0d0e21e 2057typedef struct am_table AMT;
a6006777 2058typedef struct am_table_short AMTS;
a0d0e21e 2059
2060#define AMGfallNEVER 1
2061#define AMGfallNO 2
2062#define AMGfallYES 3
2063
a6006777 2064#define AMTf_AMAGIC 1
2065#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2066#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2067#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2068
a0d0e21e 2069enum {
2070 fallback_amg, abs_amg,
2071 bool__amg, nomethod_amg,
2072 string_amg, numer_amg,
2073 add_amg, add_ass_amg,
2074 subtr_amg, subtr_ass_amg,
2075 mult_amg, mult_ass_amg,
2076 div_amg, div_ass_amg,
2077 mod_amg, mod_ass_amg,
2078 pow_amg, pow_ass_amg,
2079 lshift_amg, lshift_ass_amg,
2080 rshift_amg, rshift_ass_amg,
748a9306 2081 band_amg, band_ass_amg,
2082 bor_amg, bor_ass_amg,
2083 bxor_amg, bxor_ass_amg,
a0d0e21e 2084 lt_amg, le_amg,
2085 gt_amg, ge_amg,
2086 eq_amg, ne_amg,
2087 ncmp_amg, scmp_amg,
2088 slt_amg, sle_amg,
2089 sgt_amg, sge_amg,
2090 seq_amg, sne_amg,
a0d0e21e 2091 not_amg, compl_amg,
2092 inc_amg, dec_amg,
2093 atan2_amg, cos_amg,
2094 sin_amg, exp_amg,
2095 log_amg, sqrt_amg,
2096 repeat_amg, repeat_ass_amg,
748a9306 2097 concat_amg, concat_ass_amg,
2098 copy_amg, neg_amg
a0d0e21e 2099};
c0315cdf 2100
2101/*
2102 * some compilers like to redefine cos et alia as faster
2103 * (and less accurate?) versions called F_cos et cetera (Quidquid
2104 * latine dictum sit, altum viditur.) This trick collides with
2105 * the Perl overloading (amg). The following #defines fool both.
2106 */
2107
2108#ifdef _FASTMATH
2109# ifdef atan2
2110# define F_atan2_amg atan2_amg
2111# endif
2112# ifdef cos
2113# define F_cos_amg cos_amg
2114# endif
2115# ifdef exp
2116# define F_exp_amg exp_amg
2117# endif
2118# ifdef log
2119# define F_log_amg log_amg
2120# endif
2121# ifdef pow
2122# define F_pow_amg pow_amg
2123# endif
2124# ifdef sin
2125# define F_sin_amg sin_amg
2126# endif
2127# ifdef sqrt
2128# define F_sqrt_amg sqrt_amg
2129# endif
2130#endif /* _FASTMATH */
2131
a0d0e21e 2132#endif /* OVERLOAD */
36477c24 2133
2134#ifdef USE_LOCALE_COLLATE
bbce6d69 2135EXT U32 collation_ix; /* Collation generation index */
2136EXT char * collation_name; /* Name of current collation */
2137EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2138EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2139EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2140#endif /* USE_LOCALE_COLLATE */
bbce6d69 2141
36477c24 2142#ifdef USE_LOCALE_NUMERIC
bbce6d69 2143
2144EXT char * numeric_name; /* Name of current numeric locale */
2145EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2146EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2147
36477c24 2148#define SET_NUMERIC_STANDARD() \
2149 STMT_START { \
2150 if (! numeric_standard) \
2151 perl_set_numeric_standard(); \
2152 } STMT_END
2153
2154#define SET_NUMERIC_LOCAL() \
2155 STMT_START { \
2156 if (! numeric_local) \
2157 perl_set_numeric_local(); \
2158 } STMT_END
bbce6d69 2159
36477c24 2160#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2161
36477c24 2162#define SET_NUMERIC_STANDARD() /**/
2163#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2164
36477c24 2165#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2166
760ac839 2167#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2168/*
2169 * Now we have __attribute__ out of the way
2170 * Remap printf
2171 */
2172#define printf PerlIO_stdoutf
2173#endif
2174
85e6fe83 2175#endif /* Include guard */
a6e633de 2176
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