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Doc fix for close of pipe handle
[perl5.git] / perl.h
CommitLineData
a0d0e21e 1/* perl.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1987-1997, Larry Wall
a687059c 4 *
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5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
8d063cd8 8 */
85e6fe83
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9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
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13#ifdef PERL_FOR_X2P
14/*
15 * This file is being used for x2p stuff.
16 * Above symbol is defined via -D in 'x2p/Makefile.SH'
17 * Decouple x2p stuff from some of perls more extreme eccentricities.
18 */
760ac839 19#undef EMBED
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20#undef NO_EMBED
21#define NO_EMBED
22#undef MULTIPLICITY
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23#undef USE_STDIO
24#define USE_STDIO
25#endif /* PERL_FOR_X2P */
26
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27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
728e2803
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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)
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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
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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
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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)
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84#define DOSISH 1
85#endif
86
a0d0e21e 87#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
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88# define STANDARD_C 1
89#endif
90
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91#if defined(__cplusplus) || defined(WIN32)
92# define DONT_DECLARE_STD 1
93#endif
94
352d5a3a 95#if defined(HASVOLATILE) || defined(STANDARD_C)
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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
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103#endif
104
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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
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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
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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
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159#endif
160
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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
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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>
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189#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
190
191#else /* !USE_NEXT_CTYPE */
fe14fcc3 192#include <ctype.h>
0c30d9ec 193#endif /* USE_NEXT_CTYPE */
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194
195#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
196#undef METHOD
197#endif
198
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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
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220# ifdef PARAM_NEEDS_TYPES
221# include <sys/types.h>
222# endif
223# include <sys/param.h>
352d5a3a 224#endif
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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
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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
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238# define malloc Mymalloc
239# define calloc Mycalloc
05effc97 240# define realloc Myremalloc
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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
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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
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257# define safefree free
258
259#endif /* MYMALLOC */
4633a7c4 260
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261#define MEM_SIZE Size_t
262
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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))
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268#endif
269
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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
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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));
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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));
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305# endif
306# endif
ee0007ab 307#else
fc36a67e 308# define memset(d,c,l) my_memset(d,c,l)
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309#endif /* HAS_MEMSET */
310
85e6fe83 311#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 312# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
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313# define memmove(d,s,l) bcopy(s,d,l)
314# else
2304df62 315# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
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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
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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
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342#ifndef memzero
343# ifdef HAS_BZERO
344# define memzero(d,l) bzero(d,l)
345# else
346# ifdef HAS_MEMSET
347# define memzero(d,l) memset(d,0,l)
348# else
349# define memzero(d,l) my_bzero(d,l)
350# endif
351# endif
352#endif
353
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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>
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362#endif
363
1aef975c 364#ifdef I_SYS_STAT
8d063cd8 365#include <sys/stat.h>
1aef975c 366#endif
79072805 367
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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))
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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
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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
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392# define KERNEL
393# endif
394# include <sys/time.h>
85e6fe83 395# ifdef I_SYS_TIME_KERNEL
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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
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406#endif
407
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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
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417# include <net/errno.h>
418# endif
419#endif
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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
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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
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443# ifndef Strerror
444# define Strerror strerror
445# endif
446#else
447# ifdef HAS_SYS_ERRLIST
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448 extern int sys_nerr;
449 extern char *sys_errlist[];
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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
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458# ifndef _IOCTL_
459# include <sys/ioctl.h>
460# endif
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461#endif
462
ee0007ab 463#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
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464# ifdef HAS_SOCKETPAIR
465# undef HAS_SOCKETPAIR
466# endif
2304df62
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467# ifdef I_NDBM
468# undef I_NDBM
79072805 469# endif
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470#endif
471
a687059c 472#if INTSIZE == 2
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473# define htoni htons
474# define ntohi ntohs
a687059c 475#else
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476# define htoni htonl
477# define ntohi ntohl
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478#endif
479
a0d0e21e 480/* Configure already sets Direntry_t */
35c8bce7 481#if defined(I_DIRENT)
663a0e37 482# include <dirent.h>
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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
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491# ifdef hp9000s500
492# include <ndir.h> /* may be wrong in the future */
493# else
494# include <sys/dir.h>
495# endif
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496# endif
497# endif
4633a7c4 498#endif
a687059c 499
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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)
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504# endif
505#endif
506
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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
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530# ifdef S_IFBLK
531# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
532# else
533# define S_ISBLK(m) (0)
534# endif
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535#endif
536
537#ifndef S_ISREG
538# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
539#endif
540
541#ifndef S_ISFIFO
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542# ifdef S_IFIFO
543# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
544# else
545# define S_ISFIFO(m) (0)
546# endif
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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
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607#ifdef ff_next
608# undef ff_next
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609#endif
610
a0d0e21e 611#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
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612# define SLOPPYDIVIDE
613#endif
614
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615#ifdef UV
616#undef UV
617#endif
618
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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
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632#ifdef cray
633# define Quad_t int
634#else
635# ifdef convex
636# define Quad_t long long
45d8adaa 637# else
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638# if BYTEORDER > 0xFFFF
639# define Quad_t long
45d8adaa
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640# endif
641# endif
f86702cc
PP
642#endif
643
644#ifdef Quad_t
645# define HAS_QUAD
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646 typedef Quad_t IV;
647 typedef unsigned Quad_t UV;
27d4fb96
PP
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
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653 typedef long IV;
654 typedef unsigned long UV;
27d4fb96
PP
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
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659#endif
660
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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
PP
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
PP
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
PP
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
PP
710# endif
711#endif
99abf803
PP
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
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PP
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
PP
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
PP
731# endif
732#endif
733
27d4fb96 734#ifdef SHORT_MAX
99abf803 735# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
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
PP
741# endif
742#endif
743
744#ifdef SHORT_MIN
99abf803 745# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
746#else
747# ifdef MINSHORT
99abf803 748# define PERL_SHORT_MIN ((short)MINSHORT)
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PP
749# else
750# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
751# endif
752#endif
753
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PP
754#ifdef UINT_MAX
755# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 756#else
99abf803
PP
757# ifdef MAXUINT
758# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 759# else
99abf803 760# define PERL_UINT_MAX (~(unsigned int)0)
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PP
761# endif
762#endif
763
99abf803 764#define PERL_UINT_MIN ((unsigned int)0)
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PP
765
766#ifdef INT_MAX
99abf803 767# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
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
PP
773# endif
774#endif
775
776#ifdef INT_MIN
99abf803 777# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
778#else
779# ifdef MININT
99abf803 780# define PERL_INT_MIN ((int)MININT)
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PP
781# else
782# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
783# endif
784#endif
785
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PP
786#ifdef ULONG_MAX
787# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 788#else
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PP
789# ifdef MAXULONG
790# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 791# else
99abf803 792# define PERL_ULONG_MAX (~(unsigned long)0)
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PP
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)
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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))
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805# endif
806#endif
807
808#ifdef LONG_MIN
99abf803 809# define PERL_LONG_MIN ((long)LONG_MIN)
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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))
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LW
815# endif
816#endif
817
99abf803
PP
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
PP
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
PP
838# endif
839
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840#endif
841
ee0007ab 842typedef MEM_SIZE STRLEN;
450a55e4 843
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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;
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855typedef struct loop LOOP;
856
857typedef struct Outrec Outrec;
93a17b20 858typedef struct interpreter PerlInterpreter;
79072805 859typedef struct ff FF;
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860typedef struct sv SV;
861typedef struct av AV;
862typedef struct hv HV;
863typedef struct cv CV;
378cc40b 864typedef struct regexp REGEXP;
79072805 865typedef struct gp GP;
0c30d9ec 866typedef struct gv GV;
8990e307 867typedef struct io IO;
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868typedef struct context CONTEXT;
869typedef struct block BLOCK;
870
871typedef struct magic MAGIC;
ed6116ce 872typedef struct xrv XRV;
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873typedef struct xpv XPV;
874typedef struct xpviv XPVIV;
ff68c719 875typedef struct xpvuv XPVUV;
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876typedef struct xpvnv XPVNV;
877typedef struct xpvmg XPVMG;
878typedef struct xpvlv XPVLV;
879typedef struct xpvav XPVAV;
880typedef struct xpvhv XPVHV;
881typedef struct xpvgv XPVGV;
882typedef struct xpvcv XPVCV;
883typedef struct xpvbm XPVBM;
884typedef struct xpvfm XPVFM;
8990e307 885typedef struct xpvio XPVIO;
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886typedef struct mgvtbl MGVTBL;
887typedef union any ANY;
8d063cd8 888
378cc40b 889#include "handy.h"
a0d0e21e 890
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AD
891typedef I32 (*filter_t) _((int, SV *, int));
892#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
893#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
894#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
895
748a9306 896#ifdef DOSISH
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897# if defined(OS2)
898# include "os2ish.h"
899# else
748a9306 900# include "dosish.h"
4633a7c4 901# endif
a0d0e21e 902#else
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903# if defined(VMS)
904# include "vmsish.h"
905# else
0c30d9ec
PP
906# if defined(PLAN9)
907# include "./plan9/plan9ish.h"
908# else
909# include "unixish.h"
910# endif
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911# endif
912#endif
3fc1aec6 913
68dc0745
PP
914#ifdef VMS
915# define STATUS_NATIVE statusvalue_vms
916# define STATUS_NATIVE_EXPORT \
917 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
918# define STATUS_NATIVE_SET(n) \
919 STMT_START { \
920 statusvalue_vms = (n); \
921 if ((I32)statusvalue_vms == -1) \
922 statusvalue = -1; \
923 else if (statusvalue_vms & STS$M_SUCCESS) \
924 statusvalue = 0; \
925 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
926 statusvalue = 1 << 8; \
927 else \
928 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
929 } STMT_END
930# define STATUS_POSIX statusvalue
931# ifdef VMSISH_STATUS
932# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
933# else
934# define STATUS_CURRENT STATUS_POSIX
935# endif
936# define STATUS_POSIX_SET(n) \
937 STMT_START { \
938 statusvalue = (n); \
939 if (statusvalue != -1) { \
940 statusvalue &= 0xFFFF; \
941 statusvalue_vms = statusvalue ? 44 : 1; \
942 } \
943 else statusvalue_vms = -1; \
944 } STMT_END
945# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
946# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
947#else
948# define STATUS_NATIVE STATUS_POSIX
949# define STATUS_NATIVE_EXPORT STATUS_POSIX
950# define STATUS_NATIVE_SET STATUS_POSIX_SET
951# define STATUS_POSIX statusvalue
952# define STATUS_POSIX_SET(n) \
953 STMT_START { \
954 statusvalue = (n); \
955 if (statusvalue != -1) \
956 statusvalue &= 0xFFFF; \
957 } STMT_END
958# define STATUS_CURRENT STATUS_POSIX
959# define STATUS_ALL_SUCCESS (statusvalue = 0)
960# define STATUS_ALL_FAILURE (statusvalue = 1)
961#endif
962
3fc1aec6
PP
963/* Some unistd.h's give a prototype for pause() even though
964 HAS_PAUSE ends up undefined. This causes the #define
965 below to be rejected by the compmiler. Sigh.
966*/
967#ifdef HAS_PAUSE
968#define Pause pause
969#else
970#define Pause() sleep((32767<<16)+32767)
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971#endif
972
973#ifndef IOCPARM_LEN
974# ifdef IOCPARM_MASK
975 /* on BSDish systes we're safe */
976# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
977# else
978 /* otherwise guess at what's safe */
979# define IOCPARM_LEN(x) 256
980# endif
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LW
981#endif
982
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LW
983union any {
984 void* any_ptr;
985 I32 any_i32;
a0d0e21e 986 IV any_iv;
85e6fe83 987 long any_long;
a0d0e21e 988 void (*any_dptr) _((void*));
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LW
989};
990
5aabfad6
PP
991/* Work around some cygwin32 problems with importing global symbols */
992#if defined(CYGWIN32) && defined(DLLIMPORT)
993# include "cw32imp.h"
994#endif
995
378cc40b 996#include "regexp.h"
79072805 997#include "sv.h"
378cc40b 998#include "util.h"
8d063cd8 999#include "form.h"
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1000#include "gv.h"
1001#include "cv.h"
1002#include "opcode.h"
1003#include "op.h"
1004#include "cop.h"
1005#include "av.h"
1006#include "hv.h"
1007#include "mg.h"
1008#include "scope.h"
8d063cd8 1009
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LW
1010/* work around some libPW problems */
1011#ifdef DOINIT
1012EXT char Error[1];
1013#endif
1014
450a55e4 1015#if defined(iAPX286) || defined(M_I286) || defined(I80286)
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LW
1016# define I286
1017#endif
1018
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LW
1019#if defined(htonl) && !defined(HAS_HTONL)
1020#define HAS_HTONL
ae986130 1021#endif
fe14fcc3
LW
1022#if defined(htons) && !defined(HAS_HTONS)
1023#define HAS_HTONS
ae986130 1024#endif
fe14fcc3
LW
1025#if defined(ntohl) && !defined(HAS_NTOHL)
1026#define HAS_NTOHL
ae986130 1027#endif
fe14fcc3
LW
1028#if defined(ntohs) && !defined(HAS_NTOHS)
1029#define HAS_NTOHS
ae986130 1030#endif
fe14fcc3 1031#ifndef HAS_HTONL
d9d8d8de 1032#if (BYTEORDER & 0xffff) != 0x4321
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LW
1033#define HAS_HTONS
1034#define HAS_HTONL
1035#define HAS_NTOHS
1036#define HAS_NTOHL
a687059c
LW
1037#define MYSWAP
1038#define htons my_swap
1039#define htonl my_htonl
1040#define ntohs my_swap
1041#define ntohl my_ntohl
1042#endif
1043#else
d9d8d8de 1044#if (BYTEORDER & 0xffff) == 0x4321
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LW
1045#undef HAS_HTONS
1046#undef HAS_HTONL
1047#undef HAS_NTOHS
1048#undef HAS_NTOHL
a687059c
LW
1049#endif
1050#endif
1051
988174c1
LW
1052/*
1053 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1054 * -DWS
1055 */
1056#if BYTEORDER != 0x1234
1057# define HAS_VTOHL
1058# define HAS_VTOHS
1059# define HAS_HTOVL
1060# define HAS_HTOVS
1061# if BYTEORDER == 0x4321
1062# define vtohl(x) ((((x)&0xFF)<<24) \
1063 +(((x)>>24)&0xFF) \
1064 +(((x)&0x0000FF00)<<8) \
1065 +(((x)&0x00FF0000)>>8) )
1066# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1067# define htovl(x) vtohl(x)
1068# define htovs(x) vtohs(x)
1069# endif
1070 /* otherwise default to functions in util.c */
1071#endif
1072
0f85fab0 1073#ifdef CASTNEGFLOAT
79072805 1074#define U_S(what) ((U16)(what))
0f85fab0 1075#define U_I(what) ((unsigned int)(what))
79072805 1076#define U_L(what) ((U32)(what))
0f85fab0 1077#else
a6e633de
PP
1078# ifdef __cplusplus
1079 extern "C" {
1080# endif
a0d0e21e 1081U32 cast_ulong _((double));
a6e633de
PP
1082# ifdef __cplusplus
1083 }
1084# endif
232e078e
AD
1085#define U_S(what) ((U16)cast_ulong((double)(what)))
1086#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1087#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW
1088#endif
1089
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LW
1090#ifdef CASTI32
1091#define I_32(what) ((I32)(what))
a0d0e21e 1092#define I_V(what) ((IV)(what))
5d94fbed 1093#define U_V(what) ((UV)(what))
ed6116ce 1094#else
a6e633de
PP
1095# ifdef __cplusplus
1096 extern "C" {
1097# endif
a0d0e21e 1098I32 cast_i32 _((double));
a0d0e21e 1099IV cast_iv _((double));
5d94fbed 1100UV cast_uv _((double));
a6e633de
PP
1101# ifdef __cplusplus
1102 }
1103# endif
1104#define I_32(what) (cast_i32((double)(what)))
1105#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1106#define U_V(what) (cast_uv((double)(what)))
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LW
1107#endif
1108
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LW
1109struct Outrec {
1110 I32 o_lines;
d9d8d8de 1111 char *o_str;
79072805 1112 U32 o_len;
8d063cd8
LW
1113};
1114
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LW
1115#ifndef MAXSYSFD
1116# define MAXSYSFD 2
1117#endif
ee0007ab 1118
f82b3d41
PP
1119#ifndef TMPPATH
1120# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1121#endif
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LW
1122
1123#ifndef __cplusplus
a0d0e21e
LW
1124Uid_t getuid _((void));
1125Uid_t geteuid _((void));
1126Gid_t getgid _((void));
1127Gid_t getegid _((void));
79072805 1128#endif
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LW
1129
1130#ifdef DEBUGGING
0c30d9ec 1131#ifndef Perl_debug_log
760ac839 1132#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1133#endif
d96024cf 1134#define YYDEBUG 1
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1135#define DEB(a) a
1136#define DEBUG(a) if (debug) a
1137#define DEBUG_p(a) if (debug & 1) a
1138#define DEBUG_s(a) if (debug & 2) a
1139#define DEBUG_l(a) if (debug & 4) a
1140#define DEBUG_t(a) if (debug & 8) a
1141#define DEBUG_o(a) if (debug & 16) a
1142#define DEBUG_c(a) if (debug & 32) a
1143#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1144#define DEBUG_m(a) if (curinterp && debug & 128) a
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1145#define DEBUG_f(a) if (debug & 256) a
1146#define DEBUG_r(a) if (debug & 512) a
1147#define DEBUG_x(a) if (debug & 1024) a
1148#define DEBUG_u(a) if (debug & 2048) a
1149#define DEBUG_L(a) if (debug & 4096) a
1150#define DEBUG_H(a) if (debug & 8192) a
1151#define DEBUG_X(a) if (debug & 16384) a
8990e307 1152#define DEBUG_D(a) if (debug & 32768) a
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LW
1153#else
1154#define DEB(a)
1155#define DEBUG(a)
1156#define DEBUG_p(a)
1157#define DEBUG_s(a)
1158#define DEBUG_l(a)
1159#define DEBUG_t(a)
1160#define DEBUG_o(a)
1161#define DEBUG_c(a)
1162#define DEBUG_P(a)
1163#define DEBUG_m(a)
1164#define DEBUG_f(a)
1165#define DEBUG_r(a)
1166#define DEBUG_x(a)
1167#define DEBUG_u(a)
1168#define DEBUG_L(a)
1169#define DEBUG_H(a)
1170#define DEBUG_X(a)
8990e307 1171#define DEBUG_D(a)
8d063cd8 1172#endif
fe14fcc3 1173#define YYMAXDEPTH 300
8d063cd8 1174
a6e633de 1175#ifndef assert /* <assert.h> might have been included somehow */
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1176#define assert(what) DEB( { \
1177 if (!(what)) { \
463ee0b2 1178 croak("Assertion failed: file \"%s\", line %d", \
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1179 __FILE__, __LINE__); \
1180 exit(1); \
1181 }})
a6e633de 1182#endif
8d063cd8 1183
450a55e4 1184struct ufuncs {
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LW
1185 I32 (*uf_val)_((IV, SV*));
1186 I32 (*uf_set)_((IV, SV*));
1187 IV uf_index;
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LW
1188};
1189
fe14fcc3 1190/* Fix these up for __STDC__ */
68dc0745 1191#ifndef DONT_DECLARE_STD
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LW
1192char *mktemp _((char*));
1193double atof _((const char*));
1194#endif
79072805 1195
352d5a3a 1196#ifndef STANDARD_C
fe14fcc3 1197/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1198Time_t time();
8d063cd8 1199struct tm *gmtime(), *localtime();
93a17b20 1200char *strchr(), *strrchr();
378cc40b 1201char *strcpy(), *strcat();
352d5a3a 1202#endif /* ! STANDARD_C */
8d063cd8 1203
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1204
1205#ifdef I_MATH
1206# include <math.h>
1207#else
1208# ifdef __cplusplus
1209 extern "C" {
1210# endif
a0d0e21e 1211 double exp _((double));
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LW
1212 double log _((double));
1213 double sqrt _((double));
1214 double modf _((double,double*));
1215 double sin _((double));
1216 double cos _((double));
1217 double atan2 _((double,double));
1218 double pow _((double,double));
79072805
LW
1219# ifdef __cplusplus
1220 };
1221# endif
1222#endif
1223
a0d0e21e 1224#ifndef __cplusplus
3fc1aec6
PP
1225#ifdef __NeXT__ /* or whatever catches all NeXTs */
1226char *crypt (); /* Maybe more hosts will need the unprototyped version */
1227#else
a0d0e21e 1228char *crypt _((const char*, const char*));
3fc1aec6 1229#endif
68dc0745 1230#ifndef DONT_DECLARE_STD
1e422769 1231#ifndef getenv
a0d0e21e 1232char *getenv _((const char*));
1e422769 1233#endif
a0d0e21e 1234Off_t lseek _((int,Off_t,int));
68dc0745 1235#endif
a0d0e21e
LW
1236char *getlogin _((void));
1237#endif
79072805 1238
16d20bd9 1239#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1240#define UNLINK unlnk
a0d0e21e 1241I32 unlnk _((char*));
8d063cd8
LW
1242#else
1243#define UNLINK unlink
1244#endif
a687059c 1245
fe14fcc3 1246#ifndef HAS_SETREUID
85e6fe83
LW
1247# ifdef HAS_SETRESUID
1248# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1249# define HAS_SETREUID
1250# endif
a687059c 1251#endif
fe14fcc3 1252#ifndef HAS_SETREGID
85e6fe83
LW
1253# ifdef HAS_SETRESGID
1254# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1255# define HAS_SETREGID
1256# endif
a687059c 1257#endif
ee0007ab 1258
ff68c719
PP
1259typedef Signal_t (*Sighandler_t) _((int));
1260
1261#ifdef HAS_SIGACTION
1262typedef struct sigaction Sigsave_t;
1263#else
1264typedef Sighandler_t Sigsave_t;
1265#endif
1266
ee0007ab
LW
1267#define SCAN_DEF 0
1268#define SCAN_TR 1
1269#define SCAN_REPL 2
79072805
LW
1270
1271#ifdef DEBUGGING
4633a7c4 1272# ifndef register
a0d0e21e
LW
1273# define register
1274# endif
55497cff
PP
1275# ifdef MYMALLOC
1276# ifndef DEBUGGING_MSTATS
1277# define DEBUGGING_MSTATS
1278# endif
1279# endif
a0d0e21e 1280# define PAD_SV(po) pad_sv(po)
79072805 1281#else
a0d0e21e 1282# define PAD_SV(po) curpad[po]
79072805
LW
1283#endif
1284
1285/****************/
1286/* Truly global */
1287/****************/
1288
1289/* global state */
a0d0e21e 1290EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec
PP
1291/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1292#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1293#ifndef DONT_DECLARE_STD
79072805 1294extern char ** environ; /* environment variables supplied via exec */
68dc0745 1295#endif
0c30d9ec
PP
1296#else
1297# if defined(NeXT) && defined(__DYNAMIC__)
1298
1299# include <mach-o/dyld.h>
1300EXT char *** environ_pointer;
1301# define environ (*environ_pointer)
1302# endif
1303#endif /* environ processing */
1304
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LW
1305EXT int uid; /* current real user id */
1306EXT int euid; /* current effective user id */
1307EXT int gid; /* current real group id */
1308EXT int egid; /* current effective group id */
1309EXT bool nomemok; /* let malloc context handle nomem */
1310EXT U32 an; /* malloc sequence number */
463ee0b2 1311EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1312EXT U16 op_seqmax; /* op sequence number */
8990e307 1313EXT U32 evalseq; /* eval sequence number */
463ee0b2 1314EXT U32 sub_generation; /* inc to force methods to be looked up again */
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LW
1315EXT char ** origenviron;
1316EXT U32 origalen;
44a8e56a 1317EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1318EXT U32 * profiledata;
84ea024a 1319EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1320EXT char * osname; /* operating system */
ff68c719 1321EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1322
a0d0e21e
LW
1323EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1324EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW
1325EXT double * xnv_root; /* free xnv list--shared by interpreters */
1326EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1327EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1328EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd
PP
1329EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1330EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1331
79072805
LW
1332/* Stack for currently executing thread--context switch must handle this. */
1333EXT SV ** stack_base; /* stack->array_ary */
1334EXT SV ** stack_sp; /* stack pointer now */
1335EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1336
1337/* likewise for these */
1338
1339EXT OP * op; /* current op--oughta be in a global register */
1340
1341EXT I32 * scopestack; /* blocks we've entered */
1342EXT I32 scopestack_ix;
1343EXT I32 scopestack_max;
1344
1345EXT ANY* savestack; /* to save non-local values on */
1346EXT I32 savestack_ix;
1347EXT I32 savestack_max;
1348
1349EXT OP ** retstack; /* returns we've pushed */
1350EXT I32 retstack_ix;
1351EXT I32 retstack_max;
1352
1353EXT I32 * markstack; /* stackmarks we're remembering */
1354EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1355EXT I32 * markstack_max; /* stackmarks we're remembering */
1356
1357EXT SV ** curpad;
1358
1359/* temp space */
1360EXT SV * Sv;
1361EXT XPV * Xpv;
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LW
1362EXT char tokenbuf[256];
1363EXT struct stat statbuf;
ecfc5424 1364#ifdef HAS_TIMES
79072805
LW
1365EXT struct tms timesbuf;
1366#endif
463ee0b2 1367EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW
1368
1369/* for tmp use in stupid debuggers */
1370EXT int * di;
1371EXT short * ds;
1372EXT char * dc;
1373
1374/* handy constants */
71be2cbc
PP
1375EXTCONST char * Yes INIT("1");
1376EXTCONST char * No INIT("");
1377EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1378EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1379EXTCONST char * vert INIT("|");
79072805 1380
71be2cbc 1381EXTCONST char warn_uninit[]
a0d0e21e 1382 INIT("Use of uninitialized value");
71be2cbc 1383EXTCONST char warn_nosemi[]
463ee0b2 1384 INIT("Semicolon seems to be missing");
71be2cbc 1385EXTCONST char warn_reserved[]
463ee0b2 1386 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1387EXTCONST char warn_nl[]
93a17b20 1388 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1389EXTCONST char no_wrongref[]
a0d0e21e 1390 INIT("Can't use %s ref as %s ref");
71be2cbc 1391EXTCONST char no_symref[]
748a9306 1392 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1393EXTCONST char no_usym[]
8990e307 1394 INIT("Can't use an undefined value as %s reference");
71be2cbc 1395EXTCONST char no_aelem[]
93a17b20 1396 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1397EXTCONST char no_helem[]
93a17b20 1398 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1399EXTCONST char no_modify[]
93a17b20 1400 INIT("Modification of a read-only value attempted");
71be2cbc 1401EXTCONST char no_mem[]
93a17b20 1402 INIT("Out of memory!\n");
71be2cbc 1403EXTCONST char no_security[]
463ee0b2 1404 INIT("Insecure dependency in %s%s");
71be2cbc 1405EXTCONST char no_sock_func[]
93a17b20 1406 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1407EXTCONST char no_dir_func[]
93a17b20 1408 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1409EXTCONST char no_func[]
93a17b20 1410 INIT("The %s function is unimplemented");
71be2cbc 1411EXTCONST char no_myglob[]
748a9306 1412 INIT("\"my\" variable %s can't be in a package");
93a17b20 1413
79072805
LW
1414EXT SV sv_undef;
1415EXT SV sv_no;
1416EXT SV sv_yes;
1417#ifdef CSH
1418 EXT char * cshname INIT(CSH);
1419 EXT I32 cshlen;
1420#endif
1421
1422#ifdef DOINIT
8e07c86e
AD
1423EXT char *sig_name[] = { SIG_NAME };
1424EXT int sig_num[] = { SIG_NUM };
0c30d9ec
PP
1425EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1426EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW
1427#else
1428EXT char *sig_name[];
8e07c86e 1429EXT int sig_num[];
0c30d9ec
PP
1430EXT SV * psig_ptr[];
1431EXT SV * psig_name[];
79072805
LW
1432#endif
1433
bbce6d69
PP
1434/* fast case folding tables */
1435
79072805 1436#ifdef DOINIT
36477c24 1437EXTCONST unsigned char fold[] = {
79072805
LW
1438 0, 1, 2, 3, 4, 5, 6, 7,
1439 8, 9, 10, 11, 12, 13, 14, 15,
1440 16, 17, 18, 19, 20, 21, 22, 23,
1441 24, 25, 26, 27, 28, 29, 30, 31,
1442 32, 33, 34, 35, 36, 37, 38, 39,
1443 40, 41, 42, 43, 44, 45, 46, 47,
1444 48, 49, 50, 51, 52, 53, 54, 55,
1445 56, 57, 58, 59, 60, 61, 62, 63,
1446 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1447 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1448 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1449 'x', 'y', 'z', 91, 92, 93, 94, 95,
1450 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1451 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1452 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1453 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1454 128, 129, 130, 131, 132, 133, 134, 135,
1455 136, 137, 138, 139, 140, 141, 142, 143,
1456 144, 145, 146, 147, 148, 149, 150, 151,
1457 152, 153, 154, 155, 156, 157, 158, 159,
1458 160, 161, 162, 163, 164, 165, 166, 167,
1459 168, 169, 170, 171, 172, 173, 174, 175,
1460 176, 177, 178, 179, 180, 181, 182, 183,
1461 184, 185, 186, 187, 188, 189, 190, 191,
1462 192, 193, 194, 195, 196, 197, 198, 199,
1463 200, 201, 202, 203, 204, 205, 206, 207,
1464 208, 209, 210, 211, 212, 213, 214, 215,
1465 216, 217, 218, 219, 220, 221, 222, 223,
1466 224, 225, 226, 227, 228, 229, 230, 231,
1467 232, 233, 234, 235, 236, 237, 238, 239,
1468 240, 241, 242, 243, 244, 245, 246, 247,
1469 248, 249, 250, 251, 252, 253, 254, 255
1470};
1471#else
71be2cbc 1472EXTCONST unsigned char fold[];
79072805
LW
1473#endif
1474
1475#ifdef DOINIT
bbce6d69
PP
1476EXT unsigned char fold_locale[] = {
1477 0, 1, 2, 3, 4, 5, 6, 7,
1478 8, 9, 10, 11, 12, 13, 14, 15,
1479 16, 17, 18, 19, 20, 21, 22, 23,
1480 24, 25, 26, 27, 28, 29, 30, 31,
1481 32, 33, 34, 35, 36, 37, 38, 39,
1482 40, 41, 42, 43, 44, 45, 46, 47,
1483 48, 49, 50, 51, 52, 53, 54, 55,
1484 56, 57, 58, 59, 60, 61, 62, 63,
1485 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1486 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1487 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1488 'x', 'y', 'z', 91, 92, 93, 94, 95,
1489 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1490 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1491 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1492 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1493 128, 129, 130, 131, 132, 133, 134, 135,
1494 136, 137, 138, 139, 140, 141, 142, 143,
1495 144, 145, 146, 147, 148, 149, 150, 151,
1496 152, 153, 154, 155, 156, 157, 158, 159,
1497 160, 161, 162, 163, 164, 165, 166, 167,
1498 168, 169, 170, 171, 172, 173, 174, 175,
1499 176, 177, 178, 179, 180, 181, 182, 183,
1500 184, 185, 186, 187, 188, 189, 190, 191,
1501 192, 193, 194, 195, 196, 197, 198, 199,
1502 200, 201, 202, 203, 204, 205, 206, 207,
1503 208, 209, 210, 211, 212, 213, 214, 215,
1504 216, 217, 218, 219, 220, 221, 222, 223,
1505 224, 225, 226, 227, 228, 229, 230, 231,
1506 232, 233, 234, 235, 236, 237, 238, 239,
1507 240, 241, 242, 243, 244, 245, 246, 247,
1508 248, 249, 250, 251, 252, 253, 254, 255
1509};
1510#else
1511EXT unsigned char fold_locale[];
1512#endif
1513
1514#ifdef DOINIT
71be2cbc 1515EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1516 1, 2, 84, 151, 154, 155, 156, 157,
1517 165, 246, 250, 3, 158, 7, 18, 29,
1518 40, 51, 62, 73, 85, 96, 107, 118,
1519 129, 140, 147, 148, 149, 150, 152, 153,
1520 255, 182, 224, 205, 174, 176, 180, 217,
1521 233, 232, 236, 187, 235, 228, 234, 226,
1522 222, 219, 211, 195, 188, 193, 185, 184,
1523 191, 183, 201, 229, 181, 220, 194, 162,
1524 163, 208, 186, 202, 200, 218, 198, 179,
1525 178, 214, 166, 170, 207, 199, 209, 206,
1526 204, 160, 212, 216, 215, 192, 175, 173,
1527 243, 172, 161, 190, 203, 189, 164, 230,
1528 167, 248, 227, 244, 242, 255, 241, 231,
1529 240, 253, 169, 210, 245, 237, 249, 247,
1530 239, 168, 252, 251, 254, 238, 223, 221,
1531 213, 225, 177, 197, 171, 196, 159, 4,
1532 5, 6, 8, 9, 10, 11, 12, 13,
1533 14, 15, 16, 17, 19, 20, 21, 22,
1534 23, 24, 25, 26, 27, 28, 30, 31,
1535 32, 33, 34, 35, 36, 37, 38, 39,
1536 41, 42, 43, 44, 45, 46, 47, 48,
1537 49, 50, 52, 53, 54, 55, 56, 57,
1538 58, 59, 60, 61, 63, 64, 65, 66,
1539 67, 68, 69, 70, 71, 72, 74, 75,
1540 76, 77, 78, 79, 80, 81, 82, 83,
1541 86, 87, 88, 89, 90, 91, 92, 93,
1542 94, 95, 97, 98, 99, 100, 101, 102,
1543 103, 104, 105, 106, 108, 109, 110, 111,
1544 112, 113, 114, 115, 116, 117, 119, 120,
1545 121, 122, 123, 124, 125, 126, 127, 128,
1546 130, 131, 132, 133, 134, 135, 136, 137,
1547 138, 139, 141, 142, 143, 144, 145, 146
1548};
1549#else
71be2cbc 1550EXTCONST unsigned char freq[];
79072805
LW
1551#endif
1552
8990e307
LW
1553#ifdef DEBUGGING
1554#ifdef DOINIT
71be2cbc 1555EXTCONST char* block_type[] = {
8990e307
LW
1556 "NULL",
1557 "SUB",
1558 "EVAL",
1559 "LOOP",
1560 "SUBST",
1561 "BLOCK",
1562};
1563#else
71be2cbc 1564EXTCONST char* block_type[];
8990e307
LW
1565#endif
1566#endif
1567
79072805
LW
1568/*****************************************************************************/
1569/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1570/*****************************************************************************/
8990e307 1571/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1572
a0d0e21e
LW
1573#include "perly.h"
1574
79072805
LW
1575typedef enum {
1576 XOPERATOR,
1577 XTERM,
79072805 1578 XREF,
8990e307 1579 XSTATE,
a0d0e21e
LW
1580 XBLOCK,
1581 XTERMBLOCK
79072805
LW
1582} expectation;
1583
a0d0e21e
LW
1584EXT U32 lex_state; /* next token is determined */
1585EXT U32 lex_defer; /* state after determined token */
1586EXT expectation lex_expect; /* expect after determined token */
1587EXT I32 lex_brackets; /* bracket count */
1588EXT I32 lex_formbrack; /* bracket count at outer format level */
1589EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1590EXT I32 lex_casemods; /* casemod count */
1591EXT I32 lex_dojoin; /* doing an array interpolation */
1592EXT I32 lex_starts; /* how many interps done on level */
1593EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1594EXT SV * lex_repl; /* runtime replacement from s/// */
1595EXT OP * lex_op; /* extra info to pass back on op */
1596EXT OP * lex_inpat; /* in pattern $) and $| are special */
1597EXT I32 lex_inwhat; /* what kind of quoting are we in */
1598EXT char * lex_brackstack; /* what kind of brackets to pop */
1599EXT char * lex_casestack; /* what kind of case mods in effect */
1600
1601/* What we know when we're in LEX_KNOWNEXT state. */
1602EXT YYSTYPE nextval[5]; /* value of next token, if any */
1603EXT I32 nexttype[5]; /* type of next token */
1604EXT I32 nexttoke;
1605
760ac839 1606EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1607EXT SV * linestr;
1608EXT char * bufptr;
1609EXT char * oldbufptr;
1610EXT char * oldoldbufptr;
1611EXT char * bufend;
8990e307 1612EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1613EXT AV * rsfp_filters;
79072805
LW
1614
1615EXT I32 multi_start; /* 1st line of multi-line string */
1616EXT I32 multi_end; /* last line of multi-line string */
1617EXT I32 multi_open; /* delimiter of said string */
1618EXT I32 multi_close; /* delimiter of said string */
1619
1620EXT GV * scrgv;
1621EXT I32 error_count; /* how many errors so far, max 10 */
1622EXT I32 subline; /* line this subroutine began on */
1623EXT SV * subname; /* name of current subroutine */
1624
748a9306 1625EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1626EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1627EXT AV * comppad_name; /* variable names for "my" variables */
1628EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1629EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1630EXT I32 min_intro_pending;/* start of vars to introduce */
1631EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1632EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1633EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1634EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW
1635EXT COP compiling;
1636
79072805
LW
1637EXT I32 thisexpr; /* name id for nothing_in_common() */
1638EXT char * last_uni; /* position of last named-unary operator */
1639EXT char * last_lop; /* position of last list operator */
8990e307 1640EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1641EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW
1642#ifdef FCRYPT
1643EXT I32 cryptseen; /* has fast crypt() been initialized? */
1644#endif
1645
85e6fe83
LW
1646EXT U32 hints; /* various compilation flags */
1647
1648 /* Note: the lowest 8 bits are reserved for
1649 stuffing into op->op_private */
1650#define HINT_INTEGER 0x00000001
1651#define HINT_STRICT_REFS 0x00000002
1652
1653#define HINT_BLOCK_SCOPE 0x00000100
1654#define HINT_STRICT_SUBS 0x00000200
1655#define HINT_STRICT_VARS 0x00000400
bbce6d69 1656#define HINT_LOCALE 0x00000800
85e6fe83 1657
79072805
LW
1658/**************************************************************************/
1659/* This regexp stuff is global since it always happens within 1 expr eval */
1660/**************************************************************************/
1661
1662EXT char * regprecomp; /* uncompiled string. */
1663EXT char * regparse; /* Input-scan pointer. */
1664EXT char * regxend; /* End of input for compile */
1665EXT I32 regnpar; /* () count. */
1666EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1667EXT I32 regsize; /* Code size. */
a0d0e21e 1668EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW
1669EXT I32 regsawback; /* Did we see \1, ...? */
1670
1671EXT char * reginput; /* String-input pointer. */
79072805
LW
1672EXT char * regbol; /* Beginning of input, for ^ check. */
1673EXT char * regeol; /* End of input, for $ check. */
1674EXT char ** regstartp; /* Pointer to startp array. */
1675EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1676EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1677EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW
1678EXT U16 regflags; /* are we folding, multilining? */
1679EXT char regprev; /* char before regbol, \n if none */
79072805 1680
760ac839
LW
1681EXT bool do_undump; /* -u or dump seen? */
1682EXT VOL U32 debug;
1683
79072805
LW
1684/***********************************************/
1685/* Global only to current interpreter instance */
1686/***********************************************/
1687
8990e307 1688#ifdef MULTIPLICITY
79072805
LW
1689#define IEXT
1690#define IINIT(x)
1691struct interpreter {
1692#else
1693#define IEXT EXT
1694#define IINIT(x) INIT(x)
1695#endif
1696
1697/* pseudo environmental stuff */
1698IEXT int Iorigargc;
1699IEXT char ** Iorigargv;
1700IEXT GV * Ienvgv;
1701IEXT GV * Isiggv;
1702IEXT GV * Iincgv;
1703IEXT char * Iorigfilename;
748a9306
LW
1704IEXT SV * Idiehook;
1705IEXT SV * Iwarnhook;
1706IEXT SV * Iparsehook;
79072805 1707
c07a80fd
PP
1708/* Various states of an input record separator SV (rs, nrs) */
1709#define RsSNARF(sv) (! SvOK(sv))
1710#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1711#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1712
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1713/* switches */
1714IEXT char * Icddir;
1715IEXT bool Iminus_c;
a5f75d66 1716IEXT char Ipatchlevel[10];
728e2803 1717IEXT char ** Ilocalpatches;
c07a80fd 1718IEXT SV * Inrs;
2304df62 1719IEXT char * Isplitstr IINIT(" ");
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1720IEXT bool Ipreprocess;
1721IEXT bool Iminus_n;
1722IEXT bool Iminus_p;
1723IEXT bool Iminus_l;
1724IEXT bool Iminus_a;
2304df62 1725IEXT bool Iminus_F;
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1726IEXT bool Idoswitches;
1727IEXT bool Idowarn;
1728IEXT bool Idoextract;
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1729IEXT bool Isawampersand; /* must save all match strings */
1730IEXT bool Isawstudy; /* do fbm_instr on all strings */
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1731IEXT bool Isawvec;
1732IEXT bool Iunsafe;
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1733IEXT char * Iinplace;
1734IEXT char * Ie_tmpname;
760ac839 1735IEXT PerlIO * Ie_fp;
79072805 1736IEXT U32 Iperldb;
748a9306 1737 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1738IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
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1739
1740/* magical thingies */
85e6fe83 1741IEXT Time_t Ibasetime; /* $^T */
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1742IEXT SV * Iformfeed; /* $^L */
1743IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1744IEXT SV * Irs; /* $/ */
79072805 1745IEXT char * Iofs; /* $, */
8990e307 1746IEXT STRLEN Iofslen;
79072805 1747IEXT char * Iors; /* $\ */
8990e307 1748IEXT STRLEN Iorslen;
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1749IEXT char * Iofmt; /* $# */
1750IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1751IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1752IEXT I32 Istatusvalue; /* $? */
f86702cc 1753#ifdef VMS
ff0cee69 1754IEXT U32 Istatusvalue_vms;
f86702cc 1755#endif
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1756
1757IEXT struct stat Istatcache; /* _ */
1758IEXT GV * Istatgv;
1759IEXT SV * Istatname IINIT(Nullsv);
1760
1761/* shortcuts to various I/O objects */
1762IEXT GV * Istdingv;
1763IEXT GV * Ilast_in_gv;
1764IEXT GV * Idefgv;
1765IEXT GV * Iargvgv;
1766IEXT GV * Idefoutgv;
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1767IEXT GV * Iargvoutgv;
1768
1769/* shortcuts to regexp stuff */
1770IEXT GV * Ileftgv;
1771IEXT GV * Iampergv;
1772IEXT GV * Irightgv;
1773IEXT PMOP * Icurpm; /* what to do \ interps from */
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1774IEXT I32 * Iscreamfirst;
1775IEXT I32 * Iscreamnext;
1776IEXT I32 Imaxscream IINIT(-1);
1777IEXT SV * Ilastscream;
1778
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LW
1779/* shortcuts to misc objects */
1780IEXT GV * Ierrgv;
1781
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1782/* shortcuts to debugging objects */
1783IEXT GV * IDBgv;
1784IEXT GV * IDBline;
1785IEXT GV * IDBsub;
1786IEXT SV * IDBsingle;
1787IEXT SV * IDBtrace;
1788IEXT SV * IDBsignal;
1789IEXT AV * Ilineary; /* lines of script for debugger */
1790IEXT AV * Idbargs; /* args to call listed by caller function */
1791
1792/* symbol tables */
1793IEXT HV * Idefstash; /* main symbol table */
1794IEXT HV * Icurstash; /* symbol table for current package */
1795IEXT HV * Idebstash; /* symbol table for perldb package */
1796IEXT SV * Icurstname; /* name of current package */
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1797IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1798IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1799IEXT HV * Istrtab; /* shared string table */
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1800
1801/* memory management */
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1802IEXT SV ** Itmps_stack;
1803IEXT I32 Itmps_ix IINIT(-1);
1804IEXT I32 Itmps_floor IINIT(-1);
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LW
1805IEXT I32 Itmps_max;
1806IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1807IEXT I32 Isv_objcount; /* how many objects are currently allocated */
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LW
1808IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1809IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
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1810
1811/* funky return mechanisms */
1812IEXT I32 Ilastspbase;
1813IEXT I32 Ilastsize;
1814IEXT int Iforkprocess; /* so do_open |- can return proc# */
1815
1816/* subprocess state */
1817IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
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1818
1819/* internal state */
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1820IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1821IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1822IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1823IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1824IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1825IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1826IEXT bool Itainting; /* doing taint checks */
e50aee73 1827IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
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1828
1829/* trace state */
1830IEXT I32 Idlevel;
1831IEXT I32 Idlmax IINIT(128);
1832IEXT char * Idebname;
1833IEXT char * Idebdelim;
1834
1835/* current interpreter roots */
748a9306 1836IEXT CV * Imain_cv;
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LW
1837IEXT OP * Imain_root;
1838IEXT OP * Imain_start;
1839IEXT OP * Ieval_root;
1840IEXT OP * Ieval_start;
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1841
1842/* runtime control stuff */
1843IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1844IEXT COP * Icurcopdb IINIT(NULL);
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1845IEXT line_t Icopline IINIT(NOLINE);
1846IEXT CONTEXT * Icxstack;
1847IEXT I32 Icxstack_ix IINIT(-1);
1848IEXT I32 Icxstack_max IINIT(128);
54310121
PP
1849IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1850IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1851IEXT I32 Irunlevel;
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1852
1853/* stack stuff */
0c30d9ec 1854IEXT AV * Icurstack; /* THE STACK */
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1855IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1856IEXT SV ** Imystack_base; /* stack->array_ary */
1857IEXT SV ** Imystack_sp; /* stack pointer now */
1858IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1859
1860/* format accumulators */
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LW
1861IEXT SV * Iformtarget;
1862IEXT SV * Ibodytarget;
1863IEXT SV * Itoptarget;
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1864
1865/* statics moved here for shared library purposes */
93a17b20 1866IEXT SV Istrchop; /* return value from chop */
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1867IEXT int Ifilemode; /* so nextargv() can preserve mode */
1868IEXT int Ilastfd; /* what to preserve mode on */
1869IEXT char * Ioldname; /* what to preserve mode on */
1870IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1871IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1872IEXT OP * Isortcop; /* user defined sort routine */
1873IEXT HV * Isortstash; /* which is in some package or other */
1874IEXT GV * Ifirstgv; /* $a */
1875IEXT GV * Isecondgv; /* $b */
1876IEXT AV * Isortstack; /* temp stack during pp_sort() */
1877IEXT AV * Isignalstack; /* temp stack during sighandler() */
1878IEXT SV * Imystrk; /* temp key string for do_each() */
1879IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
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1880IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1881IEXT I32 Igensym; /* next symbol for getsym() to define */
1882IEXT bool Ipreambled;
3c81428c 1883IEXT AV * Ipreambleav;
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LW
1884IEXT int Ilaststatval IINIT(-1);
1885IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1886IEXT SV * Imess_sv;
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1887
1888#undef IEXT
1889#undef IINIT
1890
8990e307 1891#ifdef MULTIPLICITY
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LW
1892};
1893#else
1894struct interpreter {
1895 char broiled;
1896};
1897#endif
1898
1899#include "pp.h"
1900
1901#ifdef __cplusplus
1902extern "C" {
1903#endif
1904
1905#include "proto.h"
1906
a0d0e21e
LW
1907#ifdef EMBED
1908#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1909#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1910#else
1911#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1912#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1913#endif
1914
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1915#ifdef __cplusplus
1916};
1917#endif
1918
93a17b20 1919/* The following must follow proto.h */
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1920
1921#ifdef DOINIT
bbce6d69 1922
4633a7c4 1923EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW
1924 magic_set,
1925 magic_len,
1926 0, 0};
4633a7c4
LW
1927EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1928EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW
1929 0, magic_clearenv,
1930 0};
4633a7c4 1931EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec
PP
1932EXT MGVTBL vtbl_sigelem = {magic_getsig,
1933 magic_setsig,
1934 0, magic_clearsig,
1935 0};
4633a7c4 1936EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1937 0};
4633a7c4 1938EXT MGVTBL vtbl_packelem = {magic_getpack,
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LW
1939 magic_setpack,
1940 0, magic_clearpack,
1941 0};
4633a7c4 1942EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1943 0, 0, 0};
4633a7c4 1944EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1945 0, 0, 0};
4633a7c4 1946EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1947 0, 0, 0};
4633a7c4 1948EXT MGVTBL vtbl_arylen = {magic_getarylen,
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LW
1949 magic_setarylen,
1950 0, 0, 0};
4633a7c4 1951EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW
1952 magic_setglob,
1953 0, 0, 0};
4633a7c4 1954EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1955 0, 0, 0};
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PP
1956EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1957 0, 0, 0};
4633a7c4 1958EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1959 0, 0, 0};
4633a7c4 1960EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1961 0, 0, 0};
4633a7c4 1962EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1963 0, 0, 0};
4633a7c4 1964EXT MGVTBL vtbl_pos = {magic_getpos,
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LW
1965 magic_setpos,
1966 0, 0, 0};
4633a7c4 1967EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1968 0, 0, 0};
55497cff
PP
1969EXT MGVTBL vtbl_fm = {0, magic_setfm,
1970 0, 0, 0};
4633a7c4 1971EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW
1972 magic_setuvar,
1973 0, 0, 0};
68dc0745
PP
1974EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
1975 0, 0, magic_freedefelem};
a0d0e21e 1976
36477c24 1977#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
1978EXT MGVTBL vtbl_collxfrm = {0,
1979 magic_setcollxfrm,
1980 0, 0, 0};
1981#endif
1982
a0d0e21e 1983#ifdef OVERLOAD
4633a7c4 1984EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1985 0, 0, magic_setamagic};
4633a7c4 1986EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1987 0, 0, magic_setamagic};
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LW
1988#endif /* OVERLOAD */
1989
bbce6d69
PP
1990#else /* !DOINIT */
1991
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1992EXT MGVTBL vtbl_sv;
1993EXT MGVTBL vtbl_env;
1994EXT MGVTBL vtbl_envelem;
1995EXT MGVTBL vtbl_sig;
1996EXT MGVTBL vtbl_sigelem;
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1997EXT MGVTBL vtbl_pack;
1998EXT MGVTBL vtbl_packelem;
79072805 1999EXT MGVTBL vtbl_dbline;
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2000EXT MGVTBL vtbl_isa;
2001EXT MGVTBL vtbl_isaelem;
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2002EXT MGVTBL vtbl_arylen;
2003EXT MGVTBL vtbl_glob;
93a17b20 2004EXT MGVTBL vtbl_mglob;
99abf803 2005EXT MGVTBL vtbl_nkeys;
463ee0b2 2006EXT MGVTBL vtbl_taint;
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2007EXT MGVTBL vtbl_substr;
2008EXT MGVTBL vtbl_vec;
a0d0e21e 2009EXT MGVTBL vtbl_pos;
79072805 2010EXT MGVTBL vtbl_bm;
55497cff 2011EXT MGVTBL vtbl_fm;
79072805 2012EXT MGVTBL vtbl_uvar;
68dc0745 2013EXT MGVTBL vtbl_defelem;
a0d0e21e 2014
36477c24 2015#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2016EXT MGVTBL vtbl_collxfrm;
2017#endif
2018
a0d0e21e
LW
2019#ifdef OVERLOAD
2020EXT MGVTBL vtbl_amagic;
2021EXT MGVTBL vtbl_amagicelem;
2022#endif /* OVERLOAD */
2023
bbce6d69 2024#endif /* !DOINIT */
85e6fe83 2025
a0d0e21e 2026#ifdef OVERLOAD
c0315cdf 2027
a0d0e21e
LW
2028EXT long amagic_generation;
2029
a6006777 2030#define NofAMmeth 58
a0d0e21e 2031#ifdef DOINIT
a6006777
PP
2032EXTCONST char * AMG_names[NofAMmeth] = {
2033 "fallback", "abs", /* "fallback" should be the first. */
2034 "bool", "nomethod",
2035 "\"\"", "0+",
2036 "+", "+=",
2037 "-", "-=",
2038 "*", "*=",
2039 "/", "/=",
2040 "%", "%=",
2041 "**", "**=",
2042 "<<", "<<=",
2043 ">>", ">>=",
2044 "&", "&=",
2045 "|", "|=",
2046 "^", "^=",
2047 "<", "<=",
2048 ">", ">=",
2049 "==", "!=",
2050 "<=>", "cmp",
2051 "lt", "le",
2052 "gt", "ge",
2053 "eq", "ne",
2054 "!", "~",
2055 "++", "--",
2056 "atan2", "cos",
2057 "sin", "exp",
2058 "log", "sqrt",
2059 "x", "x=",
2060 ".", ".=",
2061 "=", "neg"
a0d0e21e
LW
2062};
2063#else
a6006777 2064EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW
2065#endif /* def INITAMAGIC */
2066
a6006777 2067struct am_table {
a0d0e21e
LW
2068 long was_ok_sub;
2069 long was_ok_am;
a6006777
PP
2070 U32 flags;
2071 CV* table[NofAMmeth];
a0d0e21e
LW
2072 long fallback;
2073};
a6006777
PP
2074struct am_table_short {
2075 long was_ok_sub;
2076 long was_ok_am;
2077 U32 flags;
2078};
a0d0e21e 2079typedef struct am_table AMT;
a6006777 2080typedef struct am_table_short AMTS;
a0d0e21e
LW
2081
2082#define AMGfallNEVER 1
2083#define AMGfallNO 2
2084#define AMGfallYES 3
2085
a6006777
PP
2086#define AMTf_AMAGIC 1
2087#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2088#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2089#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2090
a0d0e21e
LW
2091enum {
2092 fallback_amg, abs_amg,
2093 bool__amg, nomethod_amg,
2094 string_amg, numer_amg,
2095 add_amg, add_ass_amg,
2096 subtr_amg, subtr_ass_amg,
2097 mult_amg, mult_ass_amg,
2098 div_amg, div_ass_amg,
2099 mod_amg, mod_ass_amg,
2100 pow_amg, pow_ass_amg,
2101 lshift_amg, lshift_ass_amg,
2102 rshift_amg, rshift_ass_amg,
748a9306
LW
2103 band_amg, band_ass_amg,
2104 bor_amg, bor_ass_amg,
2105 bxor_amg, bxor_ass_amg,
a0d0e21e
LW
2106 lt_amg, le_amg,
2107 gt_amg, ge_amg,
2108 eq_amg, ne_amg,
2109 ncmp_amg, scmp_amg,
2110 slt_amg, sle_amg,
2111 sgt_amg, sge_amg,
2112 seq_amg, sne_amg,
a0d0e21e
LW
2113 not_amg, compl_amg,
2114 inc_amg, dec_amg,
2115 atan2_amg, cos_amg,
2116 sin_amg, exp_amg,
2117 log_amg, sqrt_amg,
2118 repeat_amg, repeat_ass_amg,
748a9306
LW
2119 concat_amg, concat_ass_amg,
2120 copy_amg, neg_amg
a0d0e21e 2121};
c0315cdf
JH
2122
2123/*
2124 * some compilers like to redefine cos et alia as faster
2125 * (and less accurate?) versions called F_cos et cetera (Quidquid
2126 * latine dictum sit, altum viditur.) This trick collides with
2127 * the Perl overloading (amg). The following #defines fool both.
2128 */
2129
2130#ifdef _FASTMATH
2131# ifdef atan2
2132# define F_atan2_amg atan2_amg
2133# endif
2134# ifdef cos
2135# define F_cos_amg cos_amg
2136# endif
2137# ifdef exp
2138# define F_exp_amg exp_amg
2139# endif
2140# ifdef log
2141# define F_log_amg log_amg
2142# endif
2143# ifdef pow
2144# define F_pow_amg pow_amg
2145# endif
2146# ifdef sin
2147# define F_sin_amg sin_amg
2148# endif
2149# ifdef sqrt
2150# define F_sqrt_amg sqrt_amg
2151# endif
2152#endif /* _FASTMATH */
2153
a0d0e21e 2154#endif /* OVERLOAD */
36477c24
PP
2155
2156#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2157EXT U32 collation_ix; /* Collation generation index */
2158EXT char * collation_name; /* Name of current collation */
2159EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2160EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2161EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2162#endif /* USE_LOCALE_COLLATE */
bbce6d69 2163
36477c24 2164#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2165
2166EXT char * numeric_name; /* Name of current numeric locale */
2167EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2168EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2169
36477c24
PP
2170#define SET_NUMERIC_STANDARD() \
2171 STMT_START { \
2172 if (! numeric_standard) \
2173 perl_set_numeric_standard(); \
2174 } STMT_END
2175
2176#define SET_NUMERIC_LOCAL() \
2177 STMT_START { \
2178 if (! numeric_local) \
2179 perl_set_numeric_local(); \
2180 } STMT_END
bbce6d69 2181
36477c24 2182#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2183
36477c24
PP
2184#define SET_NUMERIC_STANDARD() /**/
2185#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2186
36477c24 2187#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2188
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LW
2189#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2190/*
2191 * Now we have __attribute__ out of the way
2192 * Remap printf
2193 */
2194#define printf PerlIO_stdoutf
2195#endif
2196
85e6fe83 2197#endif /* Include guard */
a6e633de 2198