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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 */
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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
55497cff 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
71be2cbc 27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
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32#ifdef OP_IN_REGISTER
33# ifdef __GNUC__
34# define stringify_immed(s) #s
35# define stringify(s) stringify_immed(s)
36register struct op *op asm(stringify(OP_IN_REGISTER));
37# endif
38#endif
39
728e2803 40/*
41 * STMT_START { statements; } STMT_END;
42 * can be used as a single statement, as in
43 * if (x) STMT_START { ... } STMT_END; else ...
44 *
45 * Trying to select a version that gives no warnings...
46 */
47#if !(defined(STMT_START) && defined(STMT_END))
169d69b2 48# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
728e2803 49# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
50# define STMT_END )
51# else
52 /* Now which other defined()s do we need here ??? */
53# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
54# define STMT_START if (1)
55# define STMT_END else (void)0
56# else
57# define STMT_START do
58# define STMT_END while (0)
59# endif
60# endif
61#endif
62
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63#define NOOP (void)0
64
11343788 65#ifdef USE_THREADS
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66#ifdef FAKE_THREADS
67#include "fakethr.h"
68#else
11343788 69#include <pthread.h>
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70typedef pthread_mutex_t perl_mutex;
71typedef pthread_cond_t perl_cond;
72#endif /* FAKE_THREADS */
73#endif /* USE_THREADS */
11343788 74
55497cff 75/*
76 * SOFT_CAST can be used for args to prototyped functions to retain some
77 * type checking; it only casts if the compiler does not know prototypes.
78 */
79#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
80#define SOFT_CAST(type)
81#else
82#define SOFT_CAST(type) (type)
83#endif
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84
85#ifndef BYTEORDER
86# define BYTEORDER 0x1234
87#endif
88
89/* Overall memory policy? */
90#ifndef CONSERVATIVE
91# define LIBERAL 1
92#endif
93
94/*
95 * The following contortions are brought to you on behalf of all the
96 * standards, semi-standards, de facto standards, not-so-de-facto standards
97 * of the world, as well as all the other botches anyone ever thought of.
98 * The basic theory is that if we work hard enough here, the rest of the
99 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
100 */
ac58e20f 101
ee0007ab 102/* define this once if either system, instead of cluttering up the src */
68dc0745 103#if defined(MSDOS) || defined(atarist) || defined(WIN32)
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104#define DOSISH 1
105#endif
106
a0d0e21e 107#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
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108# define STANDARD_C 1
109#endif
110
68dc0745 111#if defined(__cplusplus) || defined(WIN32)
112# define DONT_DECLARE_STD 1
113#endif
114
352d5a3a 115#if defined(HASVOLATILE) || defined(STANDARD_C)
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116# ifdef __cplusplus
117# define VOL // to temporarily suppress warnings
118# else
119# define VOL volatile
120# endif
663a0e37 121#else
79072805 122# define VOL
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123#endif
124
bbce6d69 125#define TAINT (tainted = TRUE)
126#define TAINT_NOT (tainted = FALSE)
127#define TAINT_IF(c) if (c) { tainted = TRUE; }
128#define TAINT_ENV() if (tainting) { taint_env(); }
129#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 130
a6e633de 131/* XXX All process group stuff is handled in pp_sys.c. Should these
132 defines move there? If so, I could simplify this a lot. --AD 9/96.
133*/
134/* Process group stuff changed from traditional BSD to POSIX.
135 perlfunc.pod documents the traditional BSD-style syntax, so we'll
136 try to preserve that, if possible.
137*/
138#ifdef HAS_SETPGID
139# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 140#else
a6e633de 141# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
142# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
143# else
144# ifdef HAS_SETPGRP2 /* DG/UX */
145# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
146# endif
147# endif
148#endif
149#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
150# define HAS_SETPGRP /* Well, effectively it does . . . */
151#endif
152
153/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
154 our life easier :-) so we'll try it.
155*/
156#ifdef HAS_GETPGID
157# define BSD_GETPGRP(pid) getpgid((pid))
158#else
159# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
160# define BSD_GETPGRP(pid) getpgrp((pid))
161# else
162# ifdef HAS_GETPGRP2 /* DG/UX */
163# define BSD_GETPGRP(pid) getpgrp2((pid))
164# endif
165# endif
166#endif
167#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
168# define HAS_GETPGRP /* Well, effectively it does . . . */
169#endif
170
171/* These are not exact synonyms, since setpgrp() and getpgrp() may
172 have different behaviors, but perl.h used to define USE_BSDPGRP
173 (prior to 5.003_05) so some extension might depend on it.
174*/
175#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
176# ifndef USE_BSDPGRP
177# define USE_BSDPGRP
178# endif
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179#endif
180
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181#ifndef _TYPES_ /* If types.h defines this it's easy. */
182# ifndef major /* Does everyone's types.h define this? */
183# include <sys/types.h>
c07a80fd 184# endif
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185#endif
186
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187#ifdef __cplusplus
188# ifndef I_STDARG
189# define I_STDARG 1
190# endif
191#endif
192
193#ifdef I_STDARG
194# include <stdarg.h>
195#else
196# ifdef I_VARARGS
197# include <varargs.h>
198# endif
199#endif
200
201#include "perlio.h"
0c30d9ec 202
4633a7c4 203#ifdef USE_NEXT_CTYPE
0c30d9ec 204
205#if NX_CURRENT_COMPILER_RELEASE >= 400
206#include <objc/NXCType.h>
207#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 208#include <appkit/NXCType.h>
0c30d9ec 209#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
210
211#else /* !USE_NEXT_CTYPE */
fe14fcc3 212#include <ctype.h>
0c30d9ec 213#endif /* USE_NEXT_CTYPE */
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214
215#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
216#undef METHOD
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217#endif
218
4633a7c4 219#ifdef I_LOCALE
36477c24 220# include <locale.h>
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221#endif
222
36477c24 223#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
224# define USE_LOCALE
225# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
226 && defined(HAS_STRXFRM)
227# define USE_LOCALE_COLLATE
228# endif
229# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
230# define USE_LOCALE_CTYPE
231# endif
232# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
233# define USE_LOCALE_NUMERIC
234# endif
235#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 236
fe14fcc3 237#include <setjmp.h>
79072805 238
a0d0e21e 239#ifdef I_SYS_PARAM
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240# ifdef PARAM_NEEDS_TYPES
241# include <sys/types.h>
242# endif
243# include <sys/param.h>
352d5a3a 244#endif
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245
246
247/* Use all the "standard" definitions? */
a0d0e21e 248#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 249# include <stdlib.h>
ff68c719 250#endif
03a14243 251
55497cff 252/* This comes after <stdlib.h> so we don't try to change the standard
253 * library prototypes; we'll use our own in proto.h instead. */
03a14243 254
4633a7c4 255#ifdef MYMALLOC
55497cff 256
4633a7c4 257# ifdef HIDEMYMALLOC
55497cff 258# define malloc Mymalloc
259# define calloc Mycalloc
4633a7c4 260# define realloc Myremalloc
55497cff 261# define free Myfree
262# endif
263# ifdef EMBEDMYMALLOC
264# define malloc Perl_malloc
265# define calloc Perl_calloc
266# define realloc Perl_realloc
267# define free Perl_free
4633a7c4 268# endif
55497cff 269
270# undef safemalloc
271# undef safecalloc
272# undef saferealloc
273# undef safefree
274# define safemalloc malloc
275# define safecalloc calloc
4633a7c4 276# define saferealloc realloc
55497cff 277# define safefree free
278
279#endif /* MYMALLOC */
4633a7c4 280
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281#define MEM_SIZE Size_t
282
ff68c719 283#if defined(STANDARD_C) && defined(I_STDDEF)
284# include <stddef.h>
71be2cbc 285# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 286#else
71be2cbc 287# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719 288#endif
289
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290#if defined(I_STRING) || defined(__cplusplus)
291# include <string.h>
292#else
293# include <strings.h>
294#endif
295
296#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
297#define strchr index
298#define strrchr rindex
299#endif
300
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301#ifdef I_MEMORY
302# include <memory.h>
303#endif
304
fe14fcc3 305#ifdef HAS_MEMCPY
85e6fe83 306# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 307# ifndef memcpy
a0d0e21e 308 extern char * memcpy _((char*, char*, int));
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309# endif
310# endif
311#else
312# ifndef memcpy
313# ifdef HAS_BCOPY
314# define memcpy(d,s,l) bcopy(s,d,l)
315# else
316# define memcpy(d,s,l) my_bcopy(s,d,l)
317# endif
318# endif
319#endif /* HAS_MEMCPY */
fe14fcc3 320
ee0007ab 321#ifdef HAS_MEMSET
85e6fe83 322# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 323# ifndef memset
a0d0e21e 324 extern char *memset _((char*, int, int));
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325# endif
326# endif
ee0007ab 327#else
fc36a67e 328# define memset(d,c,l) my_memset(d,c,l)
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329#endif /* HAS_MEMSET */
330
85e6fe83 331#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 332# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
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333# define memmove(d,s,l) bcopy(s,d,l)
334# else
2304df62 335# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 336# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 337# else
79072805 338# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 339# endif
352d5a3a 340# endif
d9d8d8de 341#endif
ee0007ab 342
36477c24 343#if defined(mips) && defined(ultrix) && !defined(__STDC__)
344# undef HAS_MEMCMP
345#endif
346
347#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 348# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 349# ifndef memcmp
a0d0e21e 350 extern int memcmp _((char*, char*, int));
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351# endif
352# endif
36477c24 353# ifdef BUGGY_MSC
354 # pragma function(memcmp)
355# endif
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356#else
357# ifndef memcmp
ecfc5424 358# define memcmp my_memcmp
352d5a3a 359# endif
36477c24 360#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 361
fc36a67e 362#ifndef memzero
c635e13b 363# ifdef HAS_MEMSET
364# define memzero(d,l) memset(d,0,l)
79072805 365# else
c635e13b 366# ifdef HAS_BZERO
367# define memzero(d,l) bzero(d,l)
79072805 368# else
fc36a67e 369# define memzero(d,l) my_bzero(d,l)
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370# endif
371# endif
d9d8d8de 372#endif
378cc40b 373
36477c24 374#ifndef HAS_BCMP
375# ifndef bcmp
376# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 377# endif
36477c24 378#endif /* !HAS_BCMP */
378cc40b 379
ae986130 380#ifdef I_NETINET_IN
79072805 381# include <netinet/in.h>
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382#endif
383
1aef975c 384#ifdef I_SYS_STAT
8d063cd8 385#include <sys/stat.h>
1aef975c 386#endif
79072805 387
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388/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
389 like UTekV) are broken, sometimes giving false positives. Undefine
390 them here and let the code below set them to proper values.
391
392 The ghs macro stands for GreenHills Software C-1.8.5 which
393 is the C compiler for sysV88 and the various derivatives.
394 This header file bug is corrected in gcc-2.5.8 and later versions.
395 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
396
397#if defined(uts) || (defined(m88k) && defined(ghs))
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398# undef S_ISDIR
399# undef S_ISCHR
400# undef S_ISBLK
401# undef S_ISREG
402# undef S_ISFIFO
403# undef S_ISLNK
ee0007ab 404#endif
135863df 405
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406#ifdef I_TIME
407# include <time.h>
ffed7fef 408#endif
663a0e37 409
fe14fcc3 410#ifdef I_SYS_TIME
85e6fe83 411# ifdef I_SYS_TIME_KERNEL
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412# define KERNEL
413# endif
414# include <sys/time.h>
85e6fe83 415# ifdef I_SYS_TIME_KERNEL
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416# undef KERNEL
417# endif
a687059c 418#endif
135863df 419
55497cff 420#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 421# include <sys/times.h>
d9d8d8de 422#endif
8d063cd8 423
fe14fcc3 424#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 425# undef HAS_STRERROR
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426#endif
427
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428#ifndef HAS_MKFIFO
429# ifndef mkfifo
430# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
431# endif
432#endif /* !HAS_MKFIFO */
433
663a0e37 434#include <errno.h>
ed6116ce 435#ifdef HAS_SOCKET
85e6fe83 436# ifdef I_NET_ERRNO
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437# include <net/errno.h>
438# endif
439#endif
f86702cc 440
441#ifdef VMS
442# define SETERRNO(errcode,vmserrcode) \
443 STMT_START { \
444 set_errno(errcode); \
445 set_vaxc_errno(vmserrcode); \
446 } STMT_END
748a9306 447#else
f86702cc 448# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 449#endif
ed6116ce 450
55497cff 451#ifndef errno
79072805 452 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 453#endif
663a0e37 454
2304df62 455#ifdef HAS_STRERROR
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456# ifdef VMS
457 char *strerror _((int,...));
458# else
68dc0745 459#ifndef DONT_DECLARE_STD
a0d0e21e 460 char *strerror _((int));
68dc0745 461#endif
a0d0e21e 462# endif
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463# ifndef Strerror
464# define Strerror strerror
465# endif
466#else
467# ifdef HAS_SYS_ERRLIST
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468 extern int sys_nerr;
469 extern char *sys_errlist[];
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470# ifndef Strerror
471# define Strerror(e) \
79072805 472 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 473# endif
79072805 474# endif
35c8bce7 475#endif
663a0e37 476
2304df62 477#ifdef I_SYS_IOCTL
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478# ifndef _IOCTL_
479# include <sys/ioctl.h>
480# endif
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481#endif
482
ee0007ab 483#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
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484# ifdef HAS_SOCKETPAIR
485# undef HAS_SOCKETPAIR
486# endif
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487# ifdef I_NDBM
488# undef I_NDBM
79072805 489# endif
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490#endif
491
a687059c 492#if INTSIZE == 2
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493# define htoni htons
494# define ntohi ntohs
a687059c 495#else
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496# define htoni htonl
497# define ntohi ntohl
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498#endif
499
a0d0e21e 500/* Configure already sets Direntry_t */
35c8bce7 501#if defined(I_DIRENT)
663a0e37 502# include <dirent.h>
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503# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
504# include <sys/dir.h>
505# endif
ae986130 506#else
fe14fcc3 507# ifdef I_SYS_NDIR
79a0689e 508# include <sys/ndir.h>
663a0e37 509# else
fe14fcc3 510# ifdef I_SYS_DIR
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511# ifdef hp9000s500
512# include <ndir.h> /* may be wrong in the future */
513# else
514# include <sys/dir.h>
515# endif
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516# endif
517# endif
4633a7c4 518#endif
a687059c 519
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520#ifdef FPUTS_BOTCH
521/* work around botch in SunOS 4.0.1 and 4.0.2 */
522# ifndef fputs
79072805 523# define fputs(sv,fp) fprintf(fp,"%s",sv)
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524# endif
525#endif
526
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527/*
528 * The following gobbledygook brought to you on behalf of __STDC__.
529 * (I could just use #ifndef __STDC__, but this is more bulletproof
530 * in the face of half-implementations.)
531 */
532
533#ifndef S_IFMT
534# ifdef _S_IFMT
535# define S_IFMT _S_IFMT
536# else
537# define S_IFMT 0170000
538# endif
539#endif
540
541#ifndef S_ISDIR
542# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
543#endif
544
545#ifndef S_ISCHR
546# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
547#endif
548
549#ifndef S_ISBLK
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550# ifdef S_IFBLK
551# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
552# else
553# define S_ISBLK(m) (0)
554# endif
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555#endif
556
557#ifndef S_ISREG
558# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
559#endif
560
561#ifndef S_ISFIFO
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562# ifdef S_IFIFO
563# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
564# else
565# define S_ISFIFO(m) (0)
566# endif
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567#endif
568
569#ifndef S_ISLNK
570# ifdef _S_ISLNK
571# define S_ISLNK(m) _S_ISLNK(m)
572# else
573# ifdef _S_IFLNK
574# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
575# else
576# ifdef S_IFLNK
577# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
578# else
579# define S_ISLNK(m) (0)
580# endif
581# endif
582# endif
583#endif
584
585#ifndef S_ISSOCK
586# ifdef _S_ISSOCK
587# define S_ISSOCK(m) _S_ISSOCK(m)
588# else
589# ifdef _S_IFSOCK
590# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
591# else
592# ifdef S_IFSOCK
593# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
594# else
595# define S_ISSOCK(m) (0)
596# endif
597# endif
598# endif
599#endif
600
601#ifndef S_IRUSR
602# ifdef S_IREAD
603# define S_IRUSR S_IREAD
604# define S_IWUSR S_IWRITE
605# define S_IXUSR S_IEXEC
606# else
607# define S_IRUSR 0400
608# define S_IWUSR 0200
609# define S_IXUSR 0100
610# endif
611# define S_IRGRP (S_IRUSR>>3)
612# define S_IWGRP (S_IWUSR>>3)
613# define S_IXGRP (S_IXUSR>>3)
614# define S_IROTH (S_IRUSR>>6)
615# define S_IWOTH (S_IWUSR>>6)
616# define S_IXOTH (S_IXUSR>>6)
617#endif
618
619#ifndef S_ISUID
620# define S_ISUID 04000
621#endif
622
623#ifndef S_ISGID
624# define S_ISGID 02000
625#endif
626
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627#ifdef ff_next
628# undef ff_next
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629#endif
630
a0d0e21e 631#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
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632# define SLOPPYDIVIDE
633#endif
634
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635#ifdef UV
636#undef UV
637#endif
638
27d4fb96 639/* XXX QUAD stuff is not currently supported on most systems.
640 Specifically, perl internals don't support long long. Among
641 the many problems is that some compilers support long long,
642 but the underlying library functions (such as sprintf) don't.
643 Some things do work (such as quad pack/unpack on convex);
644 also some systems use long long for the fpos_t typedef. That
645 seems to work too.
646
647 The IV type is supposed to be long enough to hold any integral
648 value or a pointer.
649 --Andy Dougherty August 1996
650*/
651
f86702cc 652#ifdef cray
653# define Quad_t int
654#else
655# ifdef convex
656# define Quad_t long long
45d8adaa 657# else
ff0cee69 658# if BYTEORDER > 0xFFFF
ecfc5424 659# define Quad_t long
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660# endif
661# endif
f86702cc 662#endif
663
664#ifdef Quad_t
665# define HAS_QUAD
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666 typedef Quad_t IV;
667 typedef unsigned Quad_t UV;
27d4fb96 668# define IV_MAX PERL_QUAD_MAX
669# define IV_MIN PERL_QUAD_MIN
670# define UV_MAX PERL_UQUAD_MAX
671# define UV_MIN PERL_UQUAD_MIN
79072805 672#else
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673 typedef long IV;
674 typedef unsigned long UV;
27d4fb96 675# define IV_MAX PERL_LONG_MAX
676# define IV_MIN PERL_LONG_MIN
677# define UV_MAX PERL_ULONG_MAX
678# define UV_MIN PERL_ULONG_MIN
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679#endif
680
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681/* Previously these definitions used hardcoded figures.
682 * It is hoped these formula are more portable, although
683 * no data one way or another is presently known to me.
684 * The "PERL_" names are used because these calculated constants
685 * do not meet the ANSI requirements for LONG_MAX, etc., which
686 * need to be constants acceptable to #if - kja
687 * define PERL_LONG_MAX 2147483647L
688 * define PERL_LONG_MIN (-LONG_MAX - 1)
689 * define PERL ULONG_MAX 4294967295L
690 */
691
692#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
693# include <limits.h>
694#else
695#ifdef I_VALUES
696# include <values.h>
697#endif
698#endif
699
99abf803 700/*
701 * Try to figure out max and min values for the integral types. THE CORRECT
702 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
703 * following hacks are used if neither limits.h or values.h provide them:
704 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
705 * for types < int: (unsigned TYPE)~(unsigned)0
706 * The argument to ~ must be unsigned so that later signed->unsigned
707 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
708 * and it must not be smaller than int because ~ does integral promotion.
709 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
710 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
711 * The latter is a hack which happens to work on some machines but
712 * does *not* catch any random system, or things like integer types
713 * with NaN if that is possible.
714 *
715 * All of the types are explicitly cast to prevent accidental loss of
716 * numeric range, and in the hope that they will be less likely to confuse
717 * over-eager optimizers.
718 *
719 */
27d4fb96 720
99abf803 721#define PERL_UCHAR_MIN ((unsigned char)0)
722
723#ifdef UCHAR_MAX
724# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 725#else
99abf803 726# ifdef MAXUCHAR
727# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 728# else
99abf803 729# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 730# endif
731#endif
99abf803 732
733/*
734 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
735 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
736 * depending on local options. Until Configure detects this (or at least
737 * detects whether the "signed" keyword is available) the CHAR ranges
738 * will not be included. UCHAR functions normally.
739 * - kja
740 */
27d4fb96 741
99abf803 742#define PERL_USHORT_MIN ((unsigned short)0)
743
744#ifdef USHORT_MAX
745# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 746#else
99abf803 747# ifdef MAXUSHORT
748# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 749# else
99abf803 750# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 751# endif
752#endif
753
27d4fb96 754#ifdef SHORT_MAX
99abf803 755# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 756#else
757# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 758# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 759# else
99abf803 760# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 761# endif
762#endif
763
764#ifdef SHORT_MIN
99abf803 765# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 766#else
767# ifdef MINSHORT
99abf803 768# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 769# else
770# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
771# endif
772#endif
773
99abf803 774#ifdef UINT_MAX
775# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 776#else
99abf803 777# ifdef MAXUINT
778# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 779# else
99abf803 780# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 781# endif
782#endif
783
99abf803 784#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 785
786#ifdef INT_MAX
99abf803 787# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 788#else
789# ifdef MAXINT /* Often used in <values.h> */
99abf803 790# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 791# else
99abf803 792# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 793# endif
794#endif
795
796#ifdef INT_MIN
99abf803 797# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 798#else
799# ifdef MININT
99abf803 800# define PERL_INT_MIN ((int)MININT)
27d4fb96 801# else
802# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
803# endif
804#endif
805
99abf803 806#ifdef ULONG_MAX
807# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 808#else
99abf803 809# ifdef MAXULONG
810# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 811# else
99abf803 812# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 813# endif
814#endif
815
99abf803 816#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 817
760ac839 818#ifdef LONG_MAX
99abf803 819# define PERL_LONG_MAX ((long)LONG_MAX)
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820#else
821# ifdef MAXLONG /* Often used in <values.h> */
99abf803 822# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 823# else
99abf803 824# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
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825# endif
826#endif
827
828#ifdef LONG_MIN
99abf803 829# define PERL_LONG_MIN ((long)LONG_MIN)
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830#else
831# ifdef MINLONG
99abf803 832# define PERL_LONG_MIN ((long)MINLONG)
760ac839 833# else
27d4fb96 834# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
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835# endif
836#endif
837
99abf803 838#ifdef HAS_QUAD
839
840# ifdef UQUAD_MAX
841# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 842# else
99abf803 843# define PERL_UQUAD_MAX (~(UV)0)
760ac839 844# endif
760ac839 845
99abf803 846# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 847
27d4fb96 848# ifdef QUAD_MAX
99abf803 849# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 850# else
99abf803 851# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 852# endif
853
854# ifdef QUAD_MIN
99abf803 855# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 856# else
a6e633de 857# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 858# endif
859
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860#endif
861
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862/* Digital UNIX defines CONTEXT when pthreads is in use */
863#ifdef CONTEXT
864# undef CONTEXT
865#endif
866
ee0007ab 867typedef MEM_SIZE STRLEN;
450a55e4 868
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869typedef struct op OP;
870typedef struct cop COP;
871typedef struct unop UNOP;
872typedef struct binop BINOP;
873typedef struct listop LISTOP;
874typedef struct logop LOGOP;
875typedef struct condop CONDOP;
876typedef struct pmop PMOP;
877typedef struct svop SVOP;
878typedef struct gvop GVOP;
879typedef struct pvop PVOP;
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880typedef struct loop LOOP;
881
882typedef struct Outrec Outrec;
93a17b20 883typedef struct interpreter PerlInterpreter;
79072805 884typedef struct ff FF;
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885typedef struct sv SV;
886typedef struct av AV;
887typedef struct hv HV;
888typedef struct cv CV;
378cc40b 889typedef struct regexp REGEXP;
79072805 890typedef struct gp GP;
0c30d9ec 891typedef struct gv GV;
8990e307 892typedef struct io IO;
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893typedef struct context CONTEXT;
894typedef struct block BLOCK;
895
896typedef struct magic MAGIC;
ed6116ce 897typedef struct xrv XRV;
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898typedef struct xpv XPV;
899typedef struct xpviv XPVIV;
ff68c719 900typedef struct xpvuv XPVUV;
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901typedef struct xpvnv XPVNV;
902typedef struct xpvmg XPVMG;
903typedef struct xpvlv XPVLV;
904typedef struct xpvav XPVAV;
905typedef struct xpvhv XPVHV;
906typedef struct xpvgv XPVGV;
907typedef struct xpvcv XPVCV;
908typedef struct xpvbm XPVBM;
909typedef struct xpvfm XPVFM;
8990e307 910typedef struct xpvio XPVIO;
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911typedef struct mgvtbl MGVTBL;
912typedef union any ANY;
8d063cd8 913
378cc40b 914#include "handy.h"
a0d0e21e 915
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916typedef I32 (*filter_t) _((int, SV *, int));
917#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
918#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
919#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
920
748a9306 921#ifdef DOSISH
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922# if defined(OS2)
923# include "os2ish.h"
924# else
748a9306 925# include "dosish.h"
4633a7c4 926# endif
a0d0e21e 927#else
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928# if defined(VMS)
929# include "vmsish.h"
930# else
0c30d9ec 931# if defined(PLAN9)
932# include "./plan9/plan9ish.h"
933# else
934# include "unixish.h"
935# endif
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936# endif
937#endif
3fc1aec6 938
68dc0745 939#ifdef VMS
940# define STATUS_NATIVE statusvalue_vms
941# define STATUS_NATIVE_EXPORT \
942 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
943# define STATUS_NATIVE_SET(n) \
944 STMT_START { \
945 statusvalue_vms = (n); \
946 if ((I32)statusvalue_vms == -1) \
947 statusvalue = -1; \
948 else if (statusvalue_vms & STS$M_SUCCESS) \
949 statusvalue = 0; \
950 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
951 statusvalue = 1 << 8; \
952 else \
953 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
954 } STMT_END
955# define STATUS_POSIX statusvalue
956# ifdef VMSISH_STATUS
957# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
958# else
959# define STATUS_CURRENT STATUS_POSIX
960# endif
961# define STATUS_POSIX_SET(n) \
962 STMT_START { \
963 statusvalue = (n); \
964 if (statusvalue != -1) { \
965 statusvalue &= 0xFFFF; \
966 statusvalue_vms = statusvalue ? 44 : 1; \
967 } \
968 else statusvalue_vms = -1; \
969 } STMT_END
970# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
971# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
972#else
973# define STATUS_NATIVE STATUS_POSIX
974# define STATUS_NATIVE_EXPORT STATUS_POSIX
975# define STATUS_NATIVE_SET STATUS_POSIX_SET
976# define STATUS_POSIX statusvalue
977# define STATUS_POSIX_SET(n) \
978 STMT_START { \
979 statusvalue = (n); \
980 if (statusvalue != -1) \
981 statusvalue &= 0xFFFF; \
982 } STMT_END
983# define STATUS_CURRENT STATUS_POSIX
984# define STATUS_ALL_SUCCESS (statusvalue = 0)
985# define STATUS_ALL_FAILURE (statusvalue = 1)
986#endif
987
3fc1aec6 988/* Some unistd.h's give a prototype for pause() even though
989 HAS_PAUSE ends up undefined. This causes the #define
990 below to be rejected by the compmiler. Sigh.
991*/
992#ifdef HAS_PAUSE
993#define Pause pause
994#else
995#define Pause() sleep((32767<<16)+32767)
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996#endif
997
998#ifndef IOCPARM_LEN
999# ifdef IOCPARM_MASK
1000 /* on BSDish systes we're safe */
1001# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
1002# else
1003 /* otherwise guess at what's safe */
1004# define IOCPARM_LEN(x) 256
1005# endif
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1006#endif
1007
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1008union any {
1009 void* any_ptr;
1010 I32 any_i32;
a0d0e21e 1011 IV any_iv;
85e6fe83 1012 long any_long;
a0d0e21e 1013 void (*any_dptr) _((void*));
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1014};
1015
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1016#ifdef USE_THREADS
1017#define ARGSproto struct thread *
1018#else
1019#define ARGSproto void
1020#endif /* USE_THREADS */
1021
5aabfad6 1022/* Work around some cygwin32 problems with importing global symbols */
1023#if defined(CYGWIN32) && defined(DLLIMPORT)
1024# include "cw32imp.h"
1025#endif
1026
378cc40b 1027#include "regexp.h"
79072805 1028#include "sv.h"
378cc40b 1029#include "util.h"
8d063cd8 1030#include "form.h"
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1031#include "gv.h"
1032#include "cv.h"
1033#include "opcode.h"
1034#include "op.h"
1035#include "cop.h"
1036#include "av.h"
1037#include "hv.h"
1038#include "mg.h"
1039#include "scope.h"
8d063cd8 1040
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1041/* work around some libPW problems */
1042#ifdef DOINIT
1043EXT char Error[1];
1044#endif
1045
450a55e4 1046#if defined(iAPX286) || defined(M_I286) || defined(I80286)
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1047# define I286
1048#endif
1049
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1050#if defined(htonl) && !defined(HAS_HTONL)
1051#define HAS_HTONL
ae986130 1052#endif
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1053#if defined(htons) && !defined(HAS_HTONS)
1054#define HAS_HTONS
ae986130 1055#endif
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1056#if defined(ntohl) && !defined(HAS_NTOHL)
1057#define HAS_NTOHL
ae986130 1058#endif
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1059#if defined(ntohs) && !defined(HAS_NTOHS)
1060#define HAS_NTOHS
ae986130 1061#endif
fe14fcc3 1062#ifndef HAS_HTONL
d9d8d8de 1063#if (BYTEORDER & 0xffff) != 0x4321
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1064#define HAS_HTONS
1065#define HAS_HTONL
1066#define HAS_NTOHS
1067#define HAS_NTOHL
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1068#define MYSWAP
1069#define htons my_swap
1070#define htonl my_htonl
1071#define ntohs my_swap
1072#define ntohl my_ntohl
1073#endif
1074#else
d9d8d8de 1075#if (BYTEORDER & 0xffff) == 0x4321
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1076#undef HAS_HTONS
1077#undef HAS_HTONL
1078#undef HAS_NTOHS
1079#undef HAS_NTOHL
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1080#endif
1081#endif
1082
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1083/*
1084 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1085 * -DWS
1086 */
1087#if BYTEORDER != 0x1234
1088# define HAS_VTOHL
1089# define HAS_VTOHS
1090# define HAS_HTOVL
1091# define HAS_HTOVS
1092# if BYTEORDER == 0x4321
1093# define vtohl(x) ((((x)&0xFF)<<24) \
1094 +(((x)>>24)&0xFF) \
1095 +(((x)&0x0000FF00)<<8) \
1096 +(((x)&0x00FF0000)>>8) )
1097# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1098# define htovl(x) vtohl(x)
1099# define htovs(x) vtohs(x)
1100# endif
1101 /* otherwise default to functions in util.c */
1102#endif
1103
0f85fab0 1104#ifdef CASTNEGFLOAT
79072805 1105#define U_S(what) ((U16)(what))
0f85fab0 1106#define U_I(what) ((unsigned int)(what))
79072805 1107#define U_L(what) ((U32)(what))
0f85fab0 1108#else
a6e633de 1109# ifdef __cplusplus
1110 extern "C" {
1111# endif
a0d0e21e 1112U32 cast_ulong _((double));
a6e633de 1113# ifdef __cplusplus
1114 }
1115# endif
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1116#define U_S(what) ((U16)cast_ulong((double)(what)))
1117#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1118#define U_L(what) (cast_ulong((double)(what)))
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1119#endif
1120
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1121#ifdef CASTI32
1122#define I_32(what) ((I32)(what))
a0d0e21e 1123#define I_V(what) ((IV)(what))
5d94fbed 1124#define U_V(what) ((UV)(what))
ed6116ce 1125#else
a6e633de 1126# ifdef __cplusplus
1127 extern "C" {
1128# endif
a0d0e21e 1129I32 cast_i32 _((double));
a0d0e21e 1130IV cast_iv _((double));
5d94fbed 1131UV cast_uv _((double));
a6e633de 1132# ifdef __cplusplus
1133 }
1134# endif
1135#define I_32(what) (cast_i32((double)(what)))
1136#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1137#define U_V(what) (cast_uv((double)(what)))
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1138#endif
1139
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1140struct Outrec {
1141 I32 o_lines;
d9d8d8de 1142 char *o_str;
79072805 1143 U32 o_len;
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1144};
1145
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1146#ifndef MAXSYSFD
1147# define MAXSYSFD 2
1148#endif
ee0007ab 1149
f82b3d41 1150#ifndef TMPPATH
1151# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1152#endif
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1153
1154#ifndef __cplusplus
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1155Uid_t getuid _((void));
1156Uid_t geteuid _((void));
1157Gid_t getgid _((void));
1158Gid_t getegid _((void));
79072805 1159#endif
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1160
1161#ifdef DEBUGGING
0c30d9ec 1162#ifndef Perl_debug_log
760ac839 1163#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1164#endif
d96024cf 1165#define YYDEBUG 1
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1166#define DEB(a) a
1167#define DEBUG(a) if (debug) a
1168#define DEBUG_p(a) if (debug & 1) a
1169#define DEBUG_s(a) if (debug & 2) a
1170#define DEBUG_l(a) if (debug & 4) a
1171#define DEBUG_t(a) if (debug & 8) a
1172#define DEBUG_o(a) if (debug & 16) a
1173#define DEBUG_c(a) if (debug & 32) a
1174#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1175#define DEBUG_m(a) if (curinterp && debug & 128) a
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1176#define DEBUG_f(a) if (debug & 256) a
1177#define DEBUG_r(a) if (debug & 512) a
1178#define DEBUG_x(a) if (debug & 1024) a
1179#define DEBUG_u(a) if (debug & 2048) a
1180#define DEBUG_L(a) if (debug & 4096) a
1181#define DEBUG_H(a) if (debug & 8192) a
1182#define DEBUG_X(a) if (debug & 16384) a
8990e307 1183#define DEBUG_D(a) if (debug & 32768) a
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1184#else
1185#define DEB(a)
1186#define DEBUG(a)
1187#define DEBUG_p(a)
1188#define DEBUG_s(a)
1189#define DEBUG_l(a)
1190#define DEBUG_t(a)
1191#define DEBUG_o(a)
1192#define DEBUG_c(a)
1193#define DEBUG_P(a)
1194#define DEBUG_m(a)
1195#define DEBUG_f(a)
1196#define DEBUG_r(a)
1197#define DEBUG_x(a)
1198#define DEBUG_u(a)
1199#define DEBUG_L(a)
1200#define DEBUG_H(a)
1201#define DEBUG_X(a)
8990e307 1202#define DEBUG_D(a)
8d063cd8 1203#endif
fe14fcc3 1204#define YYMAXDEPTH 300
8d063cd8 1205
a6e633de 1206#ifndef assert /* <assert.h> might have been included somehow */
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1207#define assert(what) DEB( { \
1208 if (!(what)) { \
463ee0b2 1209 croak("Assertion failed: file \"%s\", line %d", \
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1210 __FILE__, __LINE__); \
1211 exit(1); \
1212 }})
a6e633de 1213#endif
8d063cd8 1214
450a55e4 1215struct ufuncs {
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1216 I32 (*uf_val)_((IV, SV*));
1217 I32 (*uf_set)_((IV, SV*));
1218 IV uf_index;
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1219};
1220
fe14fcc3 1221/* Fix these up for __STDC__ */
68dc0745 1222#ifndef DONT_DECLARE_STD
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1223char *mktemp _((char*));
1224double atof _((const char*));
1225#endif
79072805 1226
352d5a3a 1227#ifndef STANDARD_C
fe14fcc3 1228/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1229Time_t time();
8d063cd8 1230struct tm *gmtime(), *localtime();
93a17b20 1231char *strchr(), *strrchr();
378cc40b 1232char *strcpy(), *strcat();
352d5a3a 1233#endif /* ! STANDARD_C */
8d063cd8 1234
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1235
1236#ifdef I_MATH
1237# include <math.h>
1238#else
1239# ifdef __cplusplus
1240 extern "C" {
1241# endif
a0d0e21e 1242 double exp _((double));
a0d0e21e 1243 double log _((double));
c635e13b 1244 double log10 _((double));
a0d0e21e 1245 double sqrt _((double));
c635e13b 1246 double frexp _((double,int*));
1247 double ldexp _((double,int));
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LW
1248 double modf _((double,double*));
1249 double sin _((double));
1250 double cos _((double));
1251 double atan2 _((double,double));
1252 double pow _((double,double));
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1253# ifdef __cplusplus
1254 };
1255# endif
1256#endif
1257
a0d0e21e 1258#ifndef __cplusplus
3fc1aec6 1259#ifdef __NeXT__ /* or whatever catches all NeXTs */
1260char *crypt (); /* Maybe more hosts will need the unprototyped version */
1261#else
a0d0e21e 1262char *crypt _((const char*, const char*));
3fc1aec6 1263#endif
68dc0745 1264#ifndef DONT_DECLARE_STD
1e422769 1265#ifndef getenv
a0d0e21e 1266char *getenv _((const char*));
1e422769 1267#endif
a0d0e21e 1268Off_t lseek _((int,Off_t,int));
68dc0745 1269#endif
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LW
1270char *getlogin _((void));
1271#endif
79072805 1272
16d20bd9 1273#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1274#define UNLINK unlnk
a0d0e21e 1275I32 unlnk _((char*));
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LW
1276#else
1277#define UNLINK unlink
1278#endif
a687059c 1279
fe14fcc3 1280#ifndef HAS_SETREUID
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LW
1281# ifdef HAS_SETRESUID
1282# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1283# define HAS_SETREUID
1284# endif
a687059c 1285#endif
fe14fcc3 1286#ifndef HAS_SETREGID
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LW
1287# ifdef HAS_SETRESGID
1288# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1289# define HAS_SETREGID
1290# endif
a687059c 1291#endif
ee0007ab 1292
ff68c719 1293typedef Signal_t (*Sighandler_t) _((int));
1294
1295#ifdef HAS_SIGACTION
1296typedef struct sigaction Sigsave_t;
1297#else
1298typedef Sighandler_t Sigsave_t;
1299#endif
1300
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1301#define SCAN_DEF 0
1302#define SCAN_TR 1
1303#define SCAN_REPL 2
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1304
1305#ifdef DEBUGGING
4633a7c4 1306# ifndef register
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LW
1307# define register
1308# endif
c07a80fd 1309# ifdef MYMALLOC
55497cff 1310# ifndef DEBUGGING_MSTATS
1311# define DEBUGGING_MSTATS
1312# endif
c07a80fd 1313# endif
a0d0e21e 1314# define PAD_SV(po) pad_sv(po)
79072805 1315#else
a0d0e21e 1316# define PAD_SV(po) curpad[po]
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1317#endif
1318
1319/****************/
1320/* Truly global */
1321/****************/
1322
1323/* global state */
a0d0e21e 1324EXT PerlInterpreter * curinterp; /* currently running interpreter */
11343788
MB
1325#ifdef USE_THREADS
1326EXT pthread_key_t thr_key; /* For per-thread struct thread ptr */
12ca11f6
MB
1327EXT perl_mutex sv_mutex; /* Mutex for allocating SVs in sv.c */
1328EXT perl_mutex malloc_mutex; /* Mutex for malloc */
1329EXT perl_mutex eval_mutex; /* Mutex for doeval */
1330EXT perl_cond eval_cond; /* Condition variable for doeval */
11343788
MB
1331EXT struct thread * eval_owner; /* Owner thread for doeval */
1332EXT int nthreads; /* Number of threads currently */
12ca11f6
MB
1333EXT perl_mutex nthreads_mutex; /* Mutex for nthreads */
1334EXT perl_cond nthreads_cond; /* Condition variable for nthreads */
11343788
MB
1335#endif /* USE_THREADS */
1336
0c30d9ec 1337/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1338#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1339#ifndef DONT_DECLARE_STD
79072805 1340extern char ** environ; /* environment variables supplied via exec */
a0d0e21e 1341#endif
0c30d9ec 1342#else
1343# if defined(NeXT) && defined(__DYNAMIC__)
1344
1345# include <mach-o/dyld.h>
1346EXT char *** environ_pointer;
1347# define environ (*environ_pointer)
1348# endif
1349#endif /* environ processing */
1350
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1351EXT int uid; /* current real user id */
1352EXT int euid; /* current effective user id */
1353EXT int gid; /* current real group id */
1354EXT int egid; /* current effective group id */
1355EXT bool nomemok; /* let malloc context handle nomem */
1356EXT U32 an; /* malloc sequence number */
463ee0b2 1357EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1358EXT U16 op_seqmax; /* op sequence number */
8990e307 1359EXT U32 evalseq; /* eval sequence number */
463ee0b2 1360EXT U32 sub_generation; /* inc to force methods to be looked up again */
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1361EXT char ** origenviron;
1362EXT U32 origalen;
44a8e56a 1363EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1364EXT U32 * profiledata;
84ea024a 1365EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1366EXT char * osname; /* operating system */
ff68c719 1367EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1368
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1369EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1370EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
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1371EXT double * xnv_root; /* free xnv list--shared by interpreters */
1372EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1373EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1374EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1375EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1376EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1377
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1378/* Stack for currently executing thread--context switch must handle this. */
1379EXT SV ** stack_base; /* stack->array_ary */
1380EXT SV ** stack_sp; /* stack pointer now */
1381EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1382
1383/* likewise for these */
1384
462e5cf6
MB
1385#ifdef OP_IN_REGISTER
1386EXT OP * opsave; /* save current op register across longjmps */
1387#else
1388EXT OP * op; /* current op--when not in a global register */
1389#endif
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1390EXT I32 * scopestack; /* blocks we've entered */
1391EXT I32 scopestack_ix;
1392EXT I32 scopestack_max;
1393
1394EXT ANY* savestack; /* to save non-local values on */
1395EXT I32 savestack_ix;
1396EXT I32 savestack_max;
1397
1398EXT OP ** retstack; /* returns we've pushed */
1399EXT I32 retstack_ix;
1400EXT I32 retstack_max;
1401
1402EXT I32 * markstack; /* stackmarks we're remembering */
1403EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1404EXT I32 * markstack_max; /* stackmarks we're remembering */
1405
1406EXT SV ** curpad;
1407
1408/* temp space */
1409EXT SV * Sv;
1410EXT XPV * Xpv;
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1411EXT char tokenbuf[256];
1412EXT struct stat statbuf;
ecfc5424 1413#ifdef HAS_TIMES
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1414EXT struct tms timesbuf;
1415#endif
463ee0b2 1416EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
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LW
1417
1418/* for tmp use in stupid debuggers */
1419EXT int * di;
1420EXT short * ds;
1421EXT char * dc;
1422
1423/* handy constants */
71be2cbc 1424EXTCONST char * Yes INIT("1");
1425EXTCONST char * No INIT("");
1426EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1427EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1428EXTCONST char * vert INIT("|");
79072805 1429
71be2cbc 1430EXTCONST char warn_uninit[]
a0d0e21e 1431 INIT("Use of uninitialized value");
71be2cbc 1432EXTCONST char warn_nosemi[]
463ee0b2 1433 INIT("Semicolon seems to be missing");
71be2cbc 1434EXTCONST char warn_reserved[]
463ee0b2 1435 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1436EXTCONST char warn_nl[]
93a17b20 1437 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1438EXTCONST char no_wrongref[]
a0d0e21e 1439 INIT("Can't use %s ref as %s ref");
71be2cbc 1440EXTCONST char no_symref[]
748a9306 1441 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1442EXTCONST char no_usym[]
8990e307 1443 INIT("Can't use an undefined value as %s reference");
71be2cbc 1444EXTCONST char no_aelem[]
93a17b20 1445 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1446EXTCONST char no_helem[]
93a17b20 1447 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1448EXTCONST char no_modify[]
93a17b20 1449 INIT("Modification of a read-only value attempted");
71be2cbc 1450EXTCONST char no_mem[]
93a17b20 1451 INIT("Out of memory!\n");
71be2cbc 1452EXTCONST char no_security[]
463ee0b2 1453 INIT("Insecure dependency in %s%s");
71be2cbc 1454EXTCONST char no_sock_func[]
93a17b20 1455 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1456EXTCONST char no_dir_func[]
93a17b20 1457 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1458EXTCONST char no_func[]
93a17b20 1459 INIT("The %s function is unimplemented");
71be2cbc 1460EXTCONST char no_myglob[]
748a9306 1461 INIT("\"my\" variable %s can't be in a package");
93a17b20 1462
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LW
1463EXT SV sv_undef;
1464EXT SV sv_no;
1465EXT SV sv_yes;
1466#ifdef CSH
1467 EXT char * cshname INIT(CSH);
1468 EXT I32 cshlen;
1469#endif
1470
1471#ifdef DOINIT
8e07c86e
AD
1472EXT char *sig_name[] = { SIG_NAME };
1473EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1474EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1475EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
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LW
1476#else
1477EXT char *sig_name[];
8e07c86e 1478EXT int sig_num[];
0c30d9ec 1479EXT SV * psig_ptr[];
1480EXT SV * psig_name[];
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LW
1481#endif
1482
bbce6d69 1483/* fast case folding tables */
1484
79072805 1485#ifdef DOINIT
36477c24 1486EXTCONST unsigned char fold[] = {
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LW
1487 0, 1, 2, 3, 4, 5, 6, 7,
1488 8, 9, 10, 11, 12, 13, 14, 15,
1489 16, 17, 18, 19, 20, 21, 22, 23,
1490 24, 25, 26, 27, 28, 29, 30, 31,
1491 32, 33, 34, 35, 36, 37, 38, 39,
1492 40, 41, 42, 43, 44, 45, 46, 47,
1493 48, 49, 50, 51, 52, 53, 54, 55,
1494 56, 57, 58, 59, 60, 61, 62, 63,
1495 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1496 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1497 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1498 'x', 'y', 'z', 91, 92, 93, 94, 95,
1499 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1500 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1501 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1502 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1503 128, 129, 130, 131, 132, 133, 134, 135,
1504 136, 137, 138, 139, 140, 141, 142, 143,
1505 144, 145, 146, 147, 148, 149, 150, 151,
1506 152, 153, 154, 155, 156, 157, 158, 159,
1507 160, 161, 162, 163, 164, 165, 166, 167,
1508 168, 169, 170, 171, 172, 173, 174, 175,
1509 176, 177, 178, 179, 180, 181, 182, 183,
1510 184, 185, 186, 187, 188, 189, 190, 191,
1511 192, 193, 194, 195, 196, 197, 198, 199,
1512 200, 201, 202, 203, 204, 205, 206, 207,
1513 208, 209, 210, 211, 212, 213, 214, 215,
1514 216, 217, 218, 219, 220, 221, 222, 223,
1515 224, 225, 226, 227, 228, 229, 230, 231,
1516 232, 233, 234, 235, 236, 237, 238, 239,
1517 240, 241, 242, 243, 244, 245, 246, 247,
1518 248, 249, 250, 251, 252, 253, 254, 255
1519};
1520#else
71be2cbc 1521EXTCONST unsigned char fold[];
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LW
1522#endif
1523
1524#ifdef DOINIT
bbce6d69 1525EXT unsigned char fold_locale[] = {
79072805
LW
1526 0, 1, 2, 3, 4, 5, 6, 7,
1527 8, 9, 10, 11, 12, 13, 14, 15,
1528 16, 17, 18, 19, 20, 21, 22, 23,
1529 24, 25, 26, 27, 28, 29, 30, 31,
1530 32, 33, 34, 35, 36, 37, 38, 39,
1531 40, 41, 42, 43, 44, 45, 46, 47,
1532 48, 49, 50, 51, 52, 53, 54, 55,
1533 56, 57, 58, 59, 60, 61, 62, 63,
1534 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1535 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1536 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1537 'x', 'y', 'z', 91, 92, 93, 94, 95,
1538 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1539 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1540 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1541 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1542 128, 129, 130, 131, 132, 133, 134, 135,
1543 136, 137, 138, 139, 140, 141, 142, 143,
1544 144, 145, 146, 147, 148, 149, 150, 151,
1545 152, 153, 154, 155, 156, 157, 158, 159,
1546 160, 161, 162, 163, 164, 165, 166, 167,
1547 168, 169, 170, 171, 172, 173, 174, 175,
1548 176, 177, 178, 179, 180, 181, 182, 183,
1549 184, 185, 186, 187, 188, 189, 190, 191,
1550 192, 193, 194, 195, 196, 197, 198, 199,
1551 200, 201, 202, 203, 204, 205, 206, 207,
1552 208, 209, 210, 211, 212, 213, 214, 215,
1553 216, 217, 218, 219, 220, 221, 222, 223,
1554 224, 225, 226, 227, 228, 229, 230, 231,
1555 232, 233, 234, 235, 236, 237, 238, 239,
1556 240, 241, 242, 243, 244, 245, 246, 247,
1557 248, 249, 250, 251, 252, 253, 254, 255
1558};
1559#else
bbce6d69 1560EXT unsigned char fold_locale[];
79072805
LW
1561#endif
1562
1563#ifdef DOINIT
71be2cbc 1564EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1565 1, 2, 84, 151, 154, 155, 156, 157,
1566 165, 246, 250, 3, 158, 7, 18, 29,
1567 40, 51, 62, 73, 85, 96, 107, 118,
1568 129, 140, 147, 148, 149, 150, 152, 153,
1569 255, 182, 224, 205, 174, 176, 180, 217,
1570 233, 232, 236, 187, 235, 228, 234, 226,
1571 222, 219, 211, 195, 188, 193, 185, 184,
1572 191, 183, 201, 229, 181, 220, 194, 162,
1573 163, 208, 186, 202, 200, 218, 198, 179,
1574 178, 214, 166, 170, 207, 199, 209, 206,
1575 204, 160, 212, 216, 215, 192, 175, 173,
1576 243, 172, 161, 190, 203, 189, 164, 230,
1577 167, 248, 227, 244, 242, 255, 241, 231,
1578 240, 253, 169, 210, 245, 237, 249, 247,
1579 239, 168, 252, 251, 254, 238, 223, 221,
1580 213, 225, 177, 197, 171, 196, 159, 4,
1581 5, 6, 8, 9, 10, 11, 12, 13,
1582 14, 15, 16, 17, 19, 20, 21, 22,
1583 23, 24, 25, 26, 27, 28, 30, 31,
1584 32, 33, 34, 35, 36, 37, 38, 39,
1585 41, 42, 43, 44, 45, 46, 47, 48,
1586 49, 50, 52, 53, 54, 55, 56, 57,
1587 58, 59, 60, 61, 63, 64, 65, 66,
1588 67, 68, 69, 70, 71, 72, 74, 75,
1589 76, 77, 78, 79, 80, 81, 82, 83,
1590 86, 87, 88, 89, 90, 91, 92, 93,
1591 94, 95, 97, 98, 99, 100, 101, 102,
1592 103, 104, 105, 106, 108, 109, 110, 111,
1593 112, 113, 114, 115, 116, 117, 119, 120,
1594 121, 122, 123, 124, 125, 126, 127, 128,
1595 130, 131, 132, 133, 134, 135, 136, 137,
1596 138, 139, 141, 142, 143, 144, 145, 146
1597};
1598#else
71be2cbc 1599EXTCONST unsigned char freq[];
79072805
LW
1600#endif
1601
8990e307
LW
1602#ifdef DEBUGGING
1603#ifdef DOINIT
71be2cbc 1604EXTCONST char* block_type[] = {
8990e307
LW
1605 "NULL",
1606 "SUB",
1607 "EVAL",
1608 "LOOP",
1609 "SUBST",
1610 "BLOCK",
1611};
1612#else
71be2cbc 1613EXTCONST char* block_type[];
8990e307
LW
1614#endif
1615#endif
1616
79072805
LW
1617/*****************************************************************************/
1618/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1619/*****************************************************************************/
8990e307 1620/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1621
a0d0e21e
LW
1622#include "perly.h"
1623
79072805
LW
1624typedef enum {
1625 XOPERATOR,
1626 XTERM,
79072805 1627 XREF,
8990e307 1628 XSTATE,
a0d0e21e
LW
1629 XBLOCK,
1630 XTERMBLOCK
79072805
LW
1631} expectation;
1632
a0d0e21e
LW
1633EXT U32 lex_state; /* next token is determined */
1634EXT U32 lex_defer; /* state after determined token */
1635EXT expectation lex_expect; /* expect after determined token */
1636EXT I32 lex_brackets; /* bracket count */
1637EXT I32 lex_formbrack; /* bracket count at outer format level */
1638EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1639EXT I32 lex_casemods; /* casemod count */
1640EXT I32 lex_dojoin; /* doing an array interpolation */
1641EXT I32 lex_starts; /* how many interps done on level */
1642EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1643EXT SV * lex_repl; /* runtime replacement from s/// */
1644EXT OP * lex_op; /* extra info to pass back on op */
1645EXT OP * lex_inpat; /* in pattern $) and $| are special */
1646EXT I32 lex_inwhat; /* what kind of quoting are we in */
1647EXT char * lex_brackstack; /* what kind of brackets to pop */
1648EXT char * lex_casestack; /* what kind of case mods in effect */
1649
1650/* What we know when we're in LEX_KNOWNEXT state. */
1651EXT YYSTYPE nextval[5]; /* value of next token, if any */
1652EXT I32 nexttype[5]; /* type of next token */
1653EXT I32 nexttoke;
1654
760ac839 1655EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1656EXT SV * linestr;
1657EXT char * bufptr;
1658EXT char * oldbufptr;
1659EXT char * oldoldbufptr;
1660EXT char * bufend;
8990e307 1661EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1662EXT AV * rsfp_filters;
79072805
LW
1663
1664EXT I32 multi_start; /* 1st line of multi-line string */
1665EXT I32 multi_end; /* last line of multi-line string */
1666EXT I32 multi_open; /* delimiter of said string */
1667EXT I32 multi_close; /* delimiter of said string */
1668
1669EXT GV * scrgv;
1670EXT I32 error_count; /* how many errors so far, max 10 */
1671EXT I32 subline; /* line this subroutine began on */
1672EXT SV * subname; /* name of current subroutine */
1673
748a9306 1674EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1675EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1676EXT AV * comppad_name; /* variable names for "my" variables */
1677EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1678EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1679EXT I32 min_intro_pending;/* start of vars to introduce */
1680EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1681EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1682EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1683EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW
1684EXT COP compiling;
1685
79072805
LW
1686EXT I32 thisexpr; /* name id for nothing_in_common() */
1687EXT char * last_uni; /* position of last named-unary operator */
1688EXT char * last_lop; /* position of last list operator */
8990e307 1689EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1690EXT bool in_my; /* we're compiling a "my" declaration */
c750a3ec 1691EXT HV * in_my_stash; /* declared class of this "my" declaration */
79072805
LW
1692#ifdef FCRYPT
1693EXT I32 cryptseen; /* has fast crypt() been initialized? */
1694#endif
1695
85e6fe83
LW
1696EXT U32 hints; /* various compilation flags */
1697
1698 /* Note: the lowest 8 bits are reserved for
1699 stuffing into op->op_private */
1700#define HINT_INTEGER 0x00000001
1701#define HINT_STRICT_REFS 0x00000002
1702
1703#define HINT_BLOCK_SCOPE 0x00000100
1704#define HINT_STRICT_SUBS 0x00000200
1705#define HINT_STRICT_VARS 0x00000400
bbce6d69 1706#define HINT_LOCALE 0x00000800
85e6fe83 1707
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LW
1708/**************************************************************************/
1709/* This regexp stuff is global since it always happens within 1 expr eval */
1710/**************************************************************************/
1711
1712EXT char * regprecomp; /* uncompiled string. */
1713EXT char * regparse; /* Input-scan pointer. */
1714EXT char * regxend; /* End of input for compile */
1715EXT I32 regnpar; /* () count. */
1716EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1717EXT I32 regsize; /* Code size. */
a0d0e21e 1718EXT I32 regnaughty; /* How bad is this pattern? */
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1719EXT I32 regsawback; /* Did we see \1, ...? */
1720
1721EXT char * reginput; /* String-input pointer. */
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1722EXT char * regbol; /* Beginning of input, for ^ check. */
1723EXT char * regeol; /* End of input, for $ check. */
1724EXT char ** regstartp; /* Pointer to startp array. */
1725EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1726EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1727EXT char * regtill; /* How far we are required to go. */
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1728EXT U16 regflags; /* are we folding, multilining? */
1729EXT char regprev; /* char before regbol, \n if none */
79072805 1730
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1731EXT bool do_undump; /* -u or dump seen? */
1732EXT VOL U32 debug;
1733
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1734/***********************************************/
1735/* Global only to current interpreter instance */
1736/***********************************************/
1737
8990e307 1738#ifdef MULTIPLICITY
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1739#define IEXT
1740#define IINIT(x)
1741struct interpreter {
1742#else
1743#define IEXT EXT
1744#define IINIT(x) INIT(x)
1745#endif
1746
1747/* pseudo environmental stuff */
1748IEXT int Iorigargc;
1749IEXT char ** Iorigargv;
1750IEXT GV * Ienvgv;
1751IEXT GV * Isiggv;
1752IEXT GV * Iincgv;
1753IEXT char * Iorigfilename;
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1754IEXT SV * Idiehook;
1755IEXT SV * Iwarnhook;
1756IEXT SV * Iparsehook;
79072805 1757
c07a80fd 1758/* Various states of an input record separator SV (rs, nrs) */
1759#define RsSNARF(sv) (! SvOK(sv))
1760#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1761#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1762
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1763/* switches */
1764IEXT char * Icddir;
1765IEXT bool Iminus_c;
a5f75d66 1766IEXT char Ipatchlevel[10];
728e2803 1767IEXT char ** Ilocalpatches;
c07a80fd 1768IEXT SV * Inrs;
2304df62 1769IEXT char * Isplitstr IINIT(" ");
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1770IEXT bool Ipreprocess;
1771IEXT bool Iminus_n;
1772IEXT bool Iminus_p;
1773IEXT bool Iminus_l;
1774IEXT bool Iminus_a;
2304df62 1775IEXT bool Iminus_F;
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1776IEXT bool Idoswitches;
1777IEXT bool Idowarn;
1778IEXT bool Idoextract;
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1779IEXT bool Isawampersand; /* must save all match strings */
1780IEXT bool Isawstudy; /* do fbm_instr on all strings */
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1781IEXT bool Isawvec;
1782IEXT bool Iunsafe;
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1783IEXT char * Iinplace;
1784IEXT char * Ie_tmpname;
760ac839 1785IEXT PerlIO * Ie_fp;
79072805 1786IEXT U32 Iperldb;
748a9306 1787 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1788IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
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1789
1790/* magical thingies */
85e6fe83 1791IEXT Time_t Ibasetime; /* $^T */
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1792IEXT SV * Iformfeed; /* $^L */
1793IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1794IEXT SV * Irs; /* $/ */
79072805 1795IEXT char * Iofs; /* $, */
8990e307 1796IEXT STRLEN Iofslen;
79072805 1797IEXT char * Iors; /* $\ */
8990e307 1798IEXT STRLEN Iorslen;
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1799IEXT char * Iofmt; /* $# */
1800IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1801IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1802IEXT I32 Istatusvalue; /* $? */
f86702cc 1803#ifdef VMS
ff0cee69 1804IEXT U32 Istatusvalue_vms;
f86702cc 1805#endif
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1806
1807IEXT struct stat Istatcache; /* _ */
1808IEXT GV * Istatgv;
1809IEXT SV * Istatname IINIT(Nullsv);
1810
1811/* shortcuts to various I/O objects */
1812IEXT GV * Istdingv;
1813IEXT GV * Ilast_in_gv;
1814IEXT GV * Idefgv;
1815IEXT GV * Iargvgv;
1816IEXT GV * Idefoutgv;
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1817IEXT GV * Iargvoutgv;
1818
1819/* shortcuts to regexp stuff */
1820IEXT GV * Ileftgv;
1821IEXT GV * Iampergv;
1822IEXT GV * Irightgv;
1823IEXT PMOP * Icurpm; /* what to do \ interps from */
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1824IEXT I32 * Iscreamfirst;
1825IEXT I32 * Iscreamnext;
1826IEXT I32 Imaxscream IINIT(-1);
1827IEXT SV * Ilastscream;
1828
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1829/* shortcuts to misc objects */
1830IEXT GV * Ierrgv;
1831
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1832/* shortcuts to debugging objects */
1833IEXT GV * IDBgv;
1834IEXT GV * IDBline;
1835IEXT GV * IDBsub;
1836IEXT SV * IDBsingle;
1837IEXT SV * IDBtrace;
1838IEXT SV * IDBsignal;
1839IEXT AV * Ilineary; /* lines of script for debugger */
1840IEXT AV * Idbargs; /* args to call listed by caller function */
1841
1842/* symbol tables */
1843IEXT HV * Idefstash; /* main symbol table */
1844IEXT HV * Icurstash; /* symbol table for current package */
1845IEXT HV * Idebstash; /* symbol table for perldb package */
1846IEXT SV * Icurstname; /* name of current package */
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1847IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1848IEXT AV * Iendav; /* names of END subroutines */
c750a3ec 1849IEXT AV * Irestartav; /* names of RESTART subroutines */
0c30d9ec 1850IEXT HV * Istrtab; /* shared string table */
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1851
1852/* memory management */
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1853IEXT SV ** Itmps_stack;
1854IEXT I32 Itmps_ix IINIT(-1);
1855IEXT I32 Itmps_floor IINIT(-1);
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1856IEXT I32 Itmps_max;
1857IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1858IEXT I32 Isv_objcount; /* how many objects are currently allocated */
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1859IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1860IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
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1861
1862/* funky return mechanisms */
1863IEXT I32 Ilastspbase;
1864IEXT I32 Ilastsize;
1865IEXT int Iforkprocess; /* so do_open |- can return proc# */
1866
1867/* subprocess state */
1868IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
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1869
1870/* internal state */
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1871IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1872IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1873IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1874IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1875IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1876IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1877IEXT bool Itainting; /* doing taint checks */
e50aee73 1878IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
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1879
1880/* trace state */
1881IEXT I32 Idlevel;
1882IEXT I32 Idlmax IINIT(128);
1883IEXT char * Idebname;
1884IEXT char * Idebdelim;
1885
1886/* current interpreter roots */
748a9306 1887IEXT CV * Imain_cv;
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1888IEXT OP * Imain_root;
1889IEXT OP * Imain_start;
1890IEXT OP * Ieval_root;
1891IEXT OP * Ieval_start;
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1892
1893/* runtime control stuff */
1894IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1895IEXT COP * Icurcopdb IINIT(NULL);
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1896IEXT line_t Icopline IINIT(NOLINE);
1897IEXT CONTEXT * Icxstack;
1898IEXT I32 Icxstack_ix IINIT(-1);
1899IEXT I32 Icxstack_max IINIT(128);
54310121 1900IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1901IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1902IEXT I32 Irunlevel;
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1903
1904/* stack stuff */
0c30d9ec 1905IEXT AV * Icurstack; /* THE STACK */
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1906IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1907IEXT SV ** Imystack_base; /* stack->array_ary */
1908IEXT SV ** Imystack_sp; /* stack pointer now */
1909IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1910
1911/* format accumulators */
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1912IEXT SV * Iformtarget;
1913IEXT SV * Ibodytarget;
1914IEXT SV * Itoptarget;
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1915
1916/* statics moved here for shared library purposes */
93a17b20 1917IEXT SV Istrchop; /* return value from chop */
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1918IEXT int Ifilemode; /* so nextargv() can preserve mode */
1919IEXT int Ilastfd; /* what to preserve mode on */
1920IEXT char * Ioldname; /* what to preserve mode on */
1921IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1922IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1923IEXT OP * Isortcop; /* user defined sort routine */
1924IEXT HV * Isortstash; /* which is in some package or other */
1925IEXT GV * Ifirstgv; /* $a */
1926IEXT GV * Isecondgv; /* $b */
1927IEXT AV * Isortstack; /* temp stack during pp_sort() */
1928IEXT AV * Isignalstack; /* temp stack during sighandler() */
1929IEXT SV * Imystrk; /* temp key string for do_each() */
1930IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
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1931IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1932IEXT I32 Igensym; /* next symbol for getsym() to define */
1933IEXT bool Ipreambled;
3c81428c 1934IEXT AV * Ipreambleav;
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1935IEXT int Ilaststatval IINIT(-1);
1936IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1937IEXT SV * Imess_sv;
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1938
1939#undef IEXT
1940#undef IINIT
1941
8990e307 1942#ifdef MULTIPLICITY
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1943};
1944#else
1945struct interpreter {
1946 char broiled;
1947};
1948#endif
1949
11343788 1950#include "thread.h"
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1951#include "pp.h"
1952
1953#ifdef __cplusplus
1954extern "C" {
1955#endif
1956
1957#include "proto.h"
1958
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1959#ifdef EMBED
1960#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1961#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1962#else
1963#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1964#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1965#endif
1966
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1967#ifdef __cplusplus
1968};
1969#endif
1970
93a17b20 1971/* The following must follow proto.h */
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1972
1973#ifdef DOINIT
bbce6d69 1974
4633a7c4 1975EXT MGVTBL vtbl_sv = {magic_get,
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1976 magic_set,
1977 magic_len,
1978 0, 0};
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1979EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1980EXT MGVTBL vtbl_envelem = {0, magic_setenv,
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1981 0, magic_clearenv,
1982 0};
4633a7c4 1983EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1984EXT MGVTBL vtbl_sigelem = {magic_getsig,
1985 magic_setsig,
1986 0, magic_clearsig,
1987 0};
4633a7c4 1988EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1989 0};
4633a7c4 1990EXT MGVTBL vtbl_packelem = {magic_getpack,
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1991 magic_setpack,
1992 0, magic_clearpack,
1993 0};
4633a7c4 1994EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1995 0, 0, 0};
4633a7c4 1996EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1997 0, 0, 0};
4633a7c4 1998EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1999 0, 0, 0};
4633a7c4 2000EXT MGVTBL vtbl_arylen = {magic_getarylen,
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2001 magic_setarylen,
2002 0, 0, 0};
4633a7c4 2003EXT MGVTBL vtbl_glob = {magic_getglob,
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2004 magic_setglob,
2005 0, 0, 0};
4633a7c4 2006EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 2007 0, 0, 0};
99abf803 2008EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
2009 0, 0, 0};
4633a7c4 2010EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 2011 0, 0, 0};
4633a7c4 2012EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 2013 0, 0, 0};
4633a7c4 2014EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 2015 0, 0, 0};
4633a7c4 2016EXT MGVTBL vtbl_pos = {magic_getpos,
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2017 magic_setpos,
2018 0, 0, 0};
4633a7c4 2019EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 2020 0, 0, 0};
55497cff 2021EXT MGVTBL vtbl_fm = {0, magic_setfm,
2022 0, 0, 0};
4633a7c4 2023EXT MGVTBL vtbl_uvar = {magic_getuvar,
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LW
2024 magic_setuvar,
2025 0, 0, 0};
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2026#ifdef USE_THREADS
2027EXT MGVTBL vtbl_mutex = {0, 0, 0, 0, magic_mutexfree};
2028#endif /* USE_THREADS */
68dc0745 2029EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
2030 0, 0, magic_freedefelem};
a0d0e21e 2031
36477c24 2032#ifdef USE_LOCALE_COLLATE
bbce6d69 2033EXT MGVTBL vtbl_collxfrm = {0,
2034 magic_setcollxfrm,
2035 0, 0, 0};
2036#endif
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2037
2038#ifdef OVERLOAD
4633a7c4 2039EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 2040 0, 0, magic_setamagic};
4633a7c4 2041EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 2042 0, 0, magic_setamagic};
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2043#endif /* OVERLOAD */
2044
bbce6d69 2045#else /* !DOINIT */
2046
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2047EXT MGVTBL vtbl_sv;
2048EXT MGVTBL vtbl_env;
2049EXT MGVTBL vtbl_envelem;
2050EXT MGVTBL vtbl_sig;
2051EXT MGVTBL vtbl_sigelem;
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2052EXT MGVTBL vtbl_pack;
2053EXT MGVTBL vtbl_packelem;
79072805 2054EXT MGVTBL vtbl_dbline;
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2055EXT MGVTBL vtbl_isa;
2056EXT MGVTBL vtbl_isaelem;
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2057EXT MGVTBL vtbl_arylen;
2058EXT MGVTBL vtbl_glob;
93a17b20 2059EXT MGVTBL vtbl_mglob;
99abf803 2060EXT MGVTBL vtbl_nkeys;
463ee0b2 2061EXT MGVTBL vtbl_taint;
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2062EXT MGVTBL vtbl_substr;
2063EXT MGVTBL vtbl_vec;
a0d0e21e 2064EXT MGVTBL vtbl_pos;
79072805 2065EXT MGVTBL vtbl_bm;
55497cff 2066EXT MGVTBL vtbl_fm;
79072805 2067EXT MGVTBL vtbl_uvar;
a0d0e21e 2068
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2069#ifdef USE_THREADS
2070EXT MGVTBL vtbl_mutex;
2071#endif /* USE_THREADS */
2072
68dc0745 2073EXT MGVTBL vtbl_defelem;
a0d0e21e 2074
36477c24 2075#ifdef USE_LOCALE_COLLATE
bbce6d69 2076EXT MGVTBL vtbl_collxfrm;
2077#endif
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2078
2079#ifdef OVERLOAD
2080EXT MGVTBL vtbl_amagic;
2081EXT MGVTBL vtbl_amagicelem;
2082#endif /* OVERLOAD */
2083
bbce6d69 2084#endif /* !DOINIT */
85e6fe83 2085
a0d0e21e 2086#ifdef OVERLOAD
c0315cdf 2087
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2088EXT long amagic_generation;
2089
a6006777 2090#define NofAMmeth 58
a0d0e21e 2091#ifdef DOINIT
a6006777 2092EXTCONST char * AMG_names[NofAMmeth] = {
2093 "fallback", "abs", /* "fallback" should be the first. */
2094 "bool", "nomethod",
2095 "\"\"", "0+",
2096 "+", "+=",
2097 "-", "-=",
2098 "*", "*=",
2099 "/", "/=",
2100 "%", "%=",
2101 "**", "**=",
2102 "<<", "<<=",
2103 ">>", ">>=",
2104 "&", "&=",
2105 "|", "|=",
2106 "^", "^=",
2107 "<", "<=",
2108 ">", ">=",
2109 "==", "!=",
2110 "<=>", "cmp",
2111 "lt", "le",
2112 "gt", "ge",
2113 "eq", "ne",
2114 "!", "~",
2115 "++", "--",
2116 "atan2", "cos",
2117 "sin", "exp",
2118 "log", "sqrt",
2119 "x", "x=",
2120 ".", ".=",
2121 "=", "neg"
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LW
2122};
2123#else
a6006777 2124EXTCONST char * AMG_names[NofAMmeth];
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2125#endif /* def INITAMAGIC */
2126
a6006777 2127struct am_table {
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LW
2128 long was_ok_sub;
2129 long was_ok_am;
a6006777 2130 U32 flags;
2131 CV* table[NofAMmeth];
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2132 long fallback;
2133};
a6006777 2134struct am_table_short {
2135 long was_ok_sub;
2136 long was_ok_am;
2137 U32 flags;
2138};
a0d0e21e 2139typedef struct am_table AMT;
a6006777 2140typedef struct am_table_short AMTS;
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LW
2141
2142#define AMGfallNEVER 1
2143#define AMGfallNO 2
2144#define AMGfallYES 3
2145
a6006777 2146#define AMTf_AMAGIC 1
2147#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2148#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2149#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2150
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2151enum {
2152 fallback_amg, abs_amg,
2153 bool__amg, nomethod_amg,
2154 string_amg, numer_amg,
2155 add_amg, add_ass_amg,
2156 subtr_amg, subtr_ass_amg,
2157 mult_amg, mult_ass_amg,
2158 div_amg, div_ass_amg,
2159 mod_amg, mod_ass_amg,
2160 pow_amg, pow_ass_amg,
2161 lshift_amg, lshift_ass_amg,
2162 rshift_amg, rshift_ass_amg,
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2163 band_amg, band_ass_amg,
2164 bor_amg, bor_ass_amg,
2165 bxor_amg, bxor_ass_amg,
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2166 lt_amg, le_amg,
2167 gt_amg, ge_amg,
2168 eq_amg, ne_amg,
2169 ncmp_amg, scmp_amg,
2170 slt_amg, sle_amg,
2171 sgt_amg, sge_amg,
2172 seq_amg, sne_amg,
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2173 not_amg, compl_amg,
2174 inc_amg, dec_amg,
2175 atan2_amg, cos_amg,
2176 sin_amg, exp_amg,
2177 log_amg, sqrt_amg,
2178 repeat_amg, repeat_ass_amg,
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2179 concat_amg, concat_ass_amg,
2180 copy_amg, neg_amg
a0d0e21e 2181};
c0315cdf
JH
2182
2183/*
2184 * some compilers like to redefine cos et alia as faster
2185 * (and less accurate?) versions called F_cos et cetera (Quidquid
2186 * latine dictum sit, altum viditur.) This trick collides with
2187 * the Perl overloading (amg). The following #defines fool both.
2188 */
2189
2190#ifdef _FASTMATH
2191# ifdef atan2
2192# define F_atan2_amg atan2_amg
2193# endif
2194# ifdef cos
2195# define F_cos_amg cos_amg
2196# endif
2197# ifdef exp
2198# define F_exp_amg exp_amg
2199# endif
2200# ifdef log
2201# define F_log_amg log_amg
2202# endif
2203# ifdef pow
2204# define F_pow_amg pow_amg
2205# endif
2206# ifdef sin
2207# define F_sin_amg sin_amg
2208# endif
2209# ifdef sqrt
2210# define F_sqrt_amg sqrt_amg
2211# endif
2212#endif /* _FASTMATH */
2213
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2214#endif /* OVERLOAD */
2215
36477c24 2216#ifdef USE_LOCALE_COLLATE
bbce6d69 2217EXT U32 collation_ix; /* Collation generation index */
2218EXT char * collation_name; /* Name of current collation */
2219EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2220EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2221EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2222#endif /* USE_LOCALE_COLLATE */
bbce6d69 2223
36477c24 2224#ifdef USE_LOCALE_NUMERIC
bbce6d69 2225
2226EXT char * numeric_name; /* Name of current numeric locale */
2227EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2228EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2229
36477c24 2230#define SET_NUMERIC_STANDARD() \
2231 STMT_START { \
2232 if (! numeric_standard) \
2233 perl_set_numeric_standard(); \
2234 } STMT_END
2235
2236#define SET_NUMERIC_LOCAL() \
2237 STMT_START { \
2238 if (! numeric_local) \
2239 perl_set_numeric_local(); \
2240 } STMT_END
bbce6d69 2241
36477c24 2242#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2243
36477c24 2244#define SET_NUMERIC_STANDARD() /**/
2245#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2246
36477c24 2247#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2248
760ac839
LW
2249#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2250/*
2251 * Now we have __attribute__ out of the way
2252 * Remap printf
2253 */
2254#define printf PerlIO_stdoutf
2255#endif
2256
85e6fe83 2257#endif /* Include guard */
a6e633de 2258