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Re: Inline PI function
[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 */
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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
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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))
40# if defined(__GNUC__) && !defined(__STRICT_ANSI__)
41# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
42# define STMT_END )
43# else
44 /* Now which other defined()s do we need here ??? */
45# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
46# define STMT_START if (1)
47# define STMT_END else (void)0
48# else
49# define STMT_START do
50# define STMT_END while (0)
51# endif
52# endif
53#endif
54
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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
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82/* define this once if either system, instead of cluttering up the src */
83#if defined(MSDOS) || defined(atarist)
84#define DOSISH 1
85#endif
86
a0d0e21e 87#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
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88# define STANDARD_C 1
89#endif
90
91#if defined(HASVOLATILE) || defined(STANDARD_C)
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92# ifdef __cplusplus
93# define VOL // to temporarily suppress warnings
94# else
95# define VOL volatile
96# endif
663a0e37 97#else
79072805 98# define VOL
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99#endif
100
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101#define TAINT (tainted = TRUE)
102#define TAINT_NOT (tainted = FALSE)
103#define TAINT_IF(c) if (c) { tainted = TRUE; }
104#define TAINT_ENV() if (tainting) { taint_env(); }
105#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 106
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107/* XXX All process group stuff is handled in pp_sys.c. Should these
108 defines move there? If so, I could simplify this a lot. --AD 9/96.
109*/
110/* Process group stuff changed from traditional BSD to POSIX.
111 perlfunc.pod documents the traditional BSD-style syntax, so we'll
112 try to preserve that, if possible.
113*/
114#ifdef HAS_SETPGID
115# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 116#else
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117# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
118# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
119# else
120# ifdef HAS_SETPGRP2 /* DG/UX */
121# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
122# endif
123# endif
124#endif
125#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
126# define HAS_SETPGRP /* Well, effectively it does . . . */
127#endif
128
129/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
130 our life easier :-) so we'll try it.
131*/
132#ifdef HAS_GETPGID
133# define BSD_GETPGRP(pid) getpgid((pid))
134#else
135# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
136# define BSD_GETPGRP(pid) getpgrp((pid))
137# else
138# ifdef HAS_GETPGRP2 /* DG/UX */
139# define BSD_GETPGRP(pid) getpgrp2((pid))
140# endif
141# endif
142#endif
143#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
144# define HAS_GETPGRP /* Well, effectively it does . . . */
145#endif
146
147/* These are not exact synonyms, since setpgrp() and getpgrp() may
148 have different behaviors, but perl.h used to define USE_BSDPGRP
149 (prior to 5.003_05) so some extension might depend on it.
150*/
151#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
152# ifndef USE_BSDPGRP
153# define USE_BSDPGRP
154# endif
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155#endif
156
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157#ifndef _TYPES_ /* If types.h defines this it's easy. */
158# ifndef major /* Does everyone's types.h define this? */
159# include <sys/types.h>
160# endif
161#endif
162
163#ifdef __cplusplus
164# ifndef I_STDARG
165# define I_STDARG 1
166# endif
167#endif
168
169#ifdef I_STDARG
170# include <stdarg.h>
171#else
172# ifdef I_VARARGS
173# include <varargs.h>
174# endif
175#endif
176
177#include "perlio.h"
0c30d9ec 178
4633a7c4 179#ifdef USE_NEXT_CTYPE
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180
181#if NX_CURRENT_COMPILER_RELEASE >= 400
182#include <objc/NXCType.h>
183#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 184#include <appkit/NXCType.h>
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185#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
186
187#else /* !USE_NEXT_CTYPE */
fe14fcc3 188#include <ctype.h>
0c30d9ec 189#endif /* USE_NEXT_CTYPE */
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190
191#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
192#undef METHOD
193#endif
194
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195#ifdef I_LOCALE
196# include <locale.h>
197#endif
198
199#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
200# define USE_LOCALE
201# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
202 && defined(HAS_STRXFRM)
203# define USE_LOCALE_COLLATE
204# endif
205# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
206# define USE_LOCALE_CTYPE
207# endif
208# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
209# define USE_LOCALE_NUMERIC
210# endif
211#endif /* !NO_LOCALE && HAS_SETLOCALE */
212
fe14fcc3 213#include <setjmp.h>
79072805 214
a0d0e21e 215#ifdef I_SYS_PARAM
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216# ifdef PARAM_NEEDS_TYPES
217# include <sys/types.h>
218# endif
219# include <sys/param.h>
352d5a3a 220#endif
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221
222
223/* Use all the "standard" definitions? */
a0d0e21e 224#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 225# include <stdlib.h>
ff68c719 226#endif
03a14243 227
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228/* This comes after <stdlib.h> so we don't try to change the standard
229 * library prototypes; we'll use our own in proto.h instead. */
230
4633a7c4 231#ifdef MYMALLOC
55497cff 232
760ac839 233# ifdef HIDEMYMALLOC
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234# define malloc Mymalloc
235# define calloc Mycalloc
05effc97 236# define realloc Myremalloc
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237# define free Myfree
238# endif
239# ifdef EMBEDMYMALLOC
240# define malloc Perl_malloc
241# define calloc Perl_calloc
242# define realloc Perl_realloc
243# define free Perl_free
4633a7c4 244# endif
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245
246# undef safemalloc
247# undef safecalloc
248# undef saferealloc
249# undef safefree
250# define safemalloc malloc
251# define safecalloc calloc
4633a7c4 252# define saferealloc realloc
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253# define safefree free
254
255#endif /* MYMALLOC */
4633a7c4 256
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257#define MEM_SIZE Size_t
258
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259#if _XOPEN_VERSION >= 4
260# define Sock_size_t Size_t
261#else
262# define Sock_size_t int
263#endif
264
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265#if defined(STANDARD_C) && defined(I_STDDEF)
266# include <stddef.h>
71be2cbc 267# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 268#else
71be2cbc 269# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
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270#endif
271
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272#if defined(I_STRING) || defined(__cplusplus)
273# include <string.h>
274#else
275# include <strings.h>
276#endif
277
278#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
279#define strchr index
280#define strrchr rindex
281#endif
282
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283#ifdef I_MEMORY
284# include <memory.h>
285#endif
286
fe14fcc3 287#ifdef HAS_MEMCPY
85e6fe83 288# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 289# ifndef memcpy
a0d0e21e 290 extern char * memcpy _((char*, char*, int));
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291# endif
292# endif
293#else
294# ifndef memcpy
295# ifdef HAS_BCOPY
296# define memcpy(d,s,l) bcopy(s,d,l)
297# else
298# define memcpy(d,s,l) my_bcopy(s,d,l)
299# endif
300# endif
301#endif /* HAS_MEMCPY */
fe14fcc3 302
ee0007ab 303#ifdef HAS_MEMSET
85e6fe83 304# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 305# ifndef memset
a0d0e21e 306 extern char *memset _((char*, int, int));
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307# endif
308# endif
309# define memzero(d,l) memset(d,0,l)
310#else
311# ifndef memzero
312# ifdef HAS_BZERO
313# define memzero(d,l) bzero(d,l)
314# else
315# define memzero(d,l) my_bzero(d,l)
316# endif
352d5a3a 317# endif
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318#endif /* HAS_MEMSET */
319
85e6fe83 320#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 321# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
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322# define memmove(d,s,l) bcopy(s,d,l)
323# else
2304df62 324# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
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325# define memmove(d,s,l) memcpy(d,s,l)
326# else
327# define memmove(d,s,l) my_bcopy(s,d,l)
328# endif
329# endif
d9d8d8de 330#endif
378cc40b 331
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332#if defined(mips) && defined(ultrix) && !defined(__STDC__)
333# undef HAS_MEMCMP
334#endif
335
336#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
337# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
338# ifndef memcmp
339 extern int memcmp _((char*, char*, int));
340# endif
341# endif
342# ifdef BUGGY_MSC
343 # pragma function(memcmp)
344# endif
345#else
346# ifndef memcmp
347# define memcmp my_memcmp
348# endif
349#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
350
351#ifndef HAS_BCMP
352# ifndef bcmp
353# define bcmp(s1,s2,l) memcmp(s1,s2,l)
354# endif
355#endif /* !HAS_BCMP */
356
ae986130 357#ifdef I_NETINET_IN
79072805 358# include <netinet/in.h>
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359#endif
360
1aef975c 361#ifdef I_SYS_STAT
8d063cd8 362#include <sys/stat.h>
1aef975c 363#endif
79072805 364
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365/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
366 like UTekV) are broken, sometimes giving false positives. Undefine
367 them here and let the code below set them to proper values.
368
369 The ghs macro stands for GreenHills Software C-1.8.5 which
370 is the C compiler for sysV88 and the various derivatives.
371 This header file bug is corrected in gcc-2.5.8 and later versions.
372 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
373
374#if defined(uts) || (defined(m88k) && defined(ghs))
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375# undef S_ISDIR
376# undef S_ISCHR
377# undef S_ISBLK
378# undef S_ISREG
379# undef S_ISFIFO
380# undef S_ISLNK
ee0007ab 381#endif
135863df 382
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383#ifdef I_TIME
384# include <time.h>
ffed7fef 385#endif
663a0e37 386
fe14fcc3 387#ifdef I_SYS_TIME
85e6fe83 388# ifdef I_SYS_TIME_KERNEL
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389# define KERNEL
390# endif
391# include <sys/time.h>
85e6fe83 392# ifdef I_SYS_TIME_KERNEL
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393# undef KERNEL
394# endif
a687059c 395#endif
135863df 396
55497cff 397#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 398# include <sys/times.h>
d9d8d8de 399#endif
8d063cd8 400
fe14fcc3 401#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 402# undef HAS_STRERROR
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403#endif
404
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405#ifndef HAS_MKFIFO
406# ifndef mkfifo
407# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
408# endif
409#endif /* !HAS_MKFIFO */
410
663a0e37 411#include <errno.h>
ed6116ce 412#ifdef HAS_SOCKET
85e6fe83 413# ifdef I_NET_ERRNO
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414# include <net/errno.h>
415# endif
416#endif
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417
418#ifdef VMS
419# define SETERRNO(errcode,vmserrcode) \
420 STMT_START { \
421 set_errno(errcode); \
422 set_vaxc_errno(vmserrcode); \
423 } STMT_END
748a9306 424#else
f86702cc 425# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 426#endif
ed6116ce 427
55497cff 428#ifndef errno
79072805 429 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 430#endif
663a0e37 431
2304df62 432#ifdef HAS_STRERROR
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433# ifdef VMS
434 char *strerror _((int,...));
435# else
436 char *strerror _((int));
437# endif
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438# ifndef Strerror
439# define Strerror strerror
440# endif
441#else
442# ifdef HAS_SYS_ERRLIST
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443 extern int sys_nerr;
444 extern char *sys_errlist[];
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445# ifndef Strerror
446# define Strerror(e) \
79072805 447 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 448# endif
79072805 449# endif
35c8bce7 450#endif
663a0e37 451
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452#ifdef VMS
453# define STATUS_NATIVE statusvalue_vms
454# define STATUS_NATIVE_EXPORT \
ff0cee69 455 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
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456# define STATUS_NATIVE_SET(n) \
457 STMT_START { \
458 statusvalue_vms = (n); \
459 if ((I32)statusvalue_vms == -1) \
460 statusvalue = -1; \
461 else if (statusvalue_vms & STS$M_SUCCESS) \
462 statusvalue = 0; \
463 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
464 statusvalue = 1 << 8; \
465 else \
466 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
467 } STMT_END
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468# define STATUS_POSIX statusvalue
469# ifdef VMSISH_STATUS
470# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
471# else
472# define STATUS_CURRENT STATUS_POSIX
473# endif
474# define STATUS_POSIX_SET(n) \
475 STMT_START { \
476 statusvalue = (n); \
477 if (statusvalue != -1) { \
478 statusvalue &= 0xFFFF; \
479 statusvalue_vms = statusvalue ? 44 : 1; \
480 } \
481 else statusvalue_vms = -1; \
482 } STMT_END
f86702cc 483# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
ff0cee69 484# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
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485#else
486# define STATUS_NATIVE STATUS_POSIX
487# define STATUS_NATIVE_EXPORT STATUS_POSIX
488# define STATUS_NATIVE_SET STATUS_POSIX_SET
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489# define STATUS_POSIX statusvalue
490# define STATUS_POSIX_SET(n) \
491 STMT_START { \
492 statusvalue = (n); \
493 if (statusvalue != -1) \
494 statusvalue &= 0xFFFF; \
495 } STMT_END
496# define STATUS_CURRENT STATUS_POSIX
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497# define STATUS_ALL_SUCCESS (statusvalue = 0)
498# define STATUS_ALL_FAILURE (statusvalue = 1)
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499#endif
500
2304df62 501#ifdef I_SYS_IOCTL
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502# ifndef _IOCTL_
503# include <sys/ioctl.h>
504# endif
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505#endif
506
ee0007ab 507#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
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508# ifdef HAS_SOCKETPAIR
509# undef HAS_SOCKETPAIR
510# endif
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511# ifdef I_NDBM
512# undef I_NDBM
79072805 513# endif
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514#endif
515
a687059c 516#if INTSIZE == 2
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517# define htoni htons
518# define ntohi ntohs
a687059c 519#else
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520# define htoni htonl
521# define ntohi ntohl
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522#endif
523
a0d0e21e 524/* Configure already sets Direntry_t */
35c8bce7 525#if defined(I_DIRENT)
663a0e37 526# include <dirent.h>
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527# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
528# include <sys/dir.h>
529# endif
ae986130 530#else
fe14fcc3 531# ifdef I_SYS_NDIR
79a0689e 532# include <sys/ndir.h>
663a0e37 533# else
fe14fcc3 534# ifdef I_SYS_DIR
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535# ifdef hp9000s500
536# include <ndir.h> /* may be wrong in the future */
537# else
538# include <sys/dir.h>
539# endif
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540# endif
541# endif
4633a7c4 542#endif
a687059c 543
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544#ifdef FPUTS_BOTCH
545/* work around botch in SunOS 4.0.1 and 4.0.2 */
546# ifndef fputs
79072805 547# define fputs(sv,fp) fprintf(fp,"%s",sv)
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548# endif
549#endif
550
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551/*
552 * The following gobbledygook brought to you on behalf of __STDC__.
553 * (I could just use #ifndef __STDC__, but this is more bulletproof
554 * in the face of half-implementations.)
555 */
556
557#ifndef S_IFMT
558# ifdef _S_IFMT
559# define S_IFMT _S_IFMT
560# else
561# define S_IFMT 0170000
562# endif
563#endif
564
565#ifndef S_ISDIR
566# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
567#endif
568
569#ifndef S_ISCHR
570# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
571#endif
572
573#ifndef S_ISBLK
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574# ifdef S_IFBLK
575# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
576# else
577# define S_ISBLK(m) (0)
578# endif
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579#endif
580
581#ifndef S_ISREG
582# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
583#endif
584
585#ifndef S_ISFIFO
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586# ifdef S_IFIFO
587# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
588# else
589# define S_ISFIFO(m) (0)
590# endif
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591#endif
592
593#ifndef S_ISLNK
594# ifdef _S_ISLNK
595# define S_ISLNK(m) _S_ISLNK(m)
596# else
597# ifdef _S_IFLNK
598# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
599# else
600# ifdef S_IFLNK
601# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
602# else
603# define S_ISLNK(m) (0)
604# endif
605# endif
606# endif
607#endif
608
609#ifndef S_ISSOCK
610# ifdef _S_ISSOCK
611# define S_ISSOCK(m) _S_ISSOCK(m)
612# else
613# ifdef _S_IFSOCK
614# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
615# else
616# ifdef S_IFSOCK
617# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
618# else
619# define S_ISSOCK(m) (0)
620# endif
621# endif
622# endif
623#endif
624
625#ifndef S_IRUSR
626# ifdef S_IREAD
627# define S_IRUSR S_IREAD
628# define S_IWUSR S_IWRITE
629# define S_IXUSR S_IEXEC
630# else
631# define S_IRUSR 0400
632# define S_IWUSR 0200
633# define S_IXUSR 0100
634# endif
635# define S_IRGRP (S_IRUSR>>3)
636# define S_IWGRP (S_IWUSR>>3)
637# define S_IXGRP (S_IXUSR>>3)
638# define S_IROTH (S_IRUSR>>6)
639# define S_IWOTH (S_IWUSR>>6)
640# define S_IXOTH (S_IXUSR>>6)
641#endif
642
643#ifndef S_ISUID
644# define S_ISUID 04000
645#endif
646
647#ifndef S_ISGID
648# define S_ISGID 02000
649#endif
650
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651#ifdef ff_next
652# undef ff_next
352d5a3a
LW
653#endif
654
a0d0e21e 655#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW
656# define SLOPPYDIVIDE
657#endif
658
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659#ifdef UV
660#undef UV
661#endif
662
27d4fb96
PP
663/* XXX QUAD stuff is not currently supported on most systems.
664 Specifically, perl internals don't support long long. Among
665 the many problems is that some compilers support long long,
666 but the underlying library functions (such as sprintf) don't.
667 Some things do work (such as quad pack/unpack on convex);
668 also some systems use long long for the fpos_t typedef. That
669 seems to work too.
670
671 The IV type is supposed to be long enough to hold any integral
672 value or a pointer.
673 --Andy Dougherty August 1996
674*/
675
f86702cc
PP
676#ifdef cray
677# define Quad_t int
678#else
679# ifdef convex
680# define Quad_t long long
45d8adaa 681# else
ff0cee69
PP
682# if BYTEORDER > 0xFFFF
683# define Quad_t long
45d8adaa
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684# endif
685# endif
f86702cc
PP
686#endif
687
688#ifdef Quad_t
689# define HAS_QUAD
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690 typedef Quad_t IV;
691 typedef unsigned Quad_t UV;
27d4fb96
PP
692# define IV_MAX PERL_QUAD_MAX
693# define IV_MIN PERL_QUAD_MIN
694# define UV_MAX PERL_UQUAD_MAX
695# define UV_MIN PERL_UQUAD_MIN
79072805 696#else
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697 typedef long IV;
698 typedef unsigned long UV;
27d4fb96
PP
699# define IV_MAX PERL_LONG_MAX
700# define IV_MIN PERL_LONG_MIN
701# define UV_MAX PERL_ULONG_MAX
702# define UV_MIN PERL_ULONG_MIN
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703#endif
704
760ac839
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705/* Previously these definitions used hardcoded figures.
706 * It is hoped these formula are more portable, although
707 * no data one way or another is presently known to me.
708 * The "PERL_" names are used because these calculated constants
709 * do not meet the ANSI requirements for LONG_MAX, etc., which
710 * need to be constants acceptable to #if - kja
711 * define PERL_LONG_MAX 2147483647L
712 * define PERL_LONG_MIN (-LONG_MAX - 1)
713 * define PERL ULONG_MAX 4294967295L
714 */
715
716#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
717# include <limits.h>
718#else
719#ifdef I_VALUES
720# include <values.h>
721#endif
722#endif
723
99abf803
PP
724/*
725 * Try to figure out max and min values for the integral types. THE CORRECT
726 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
727 * following hacks are used if neither limits.h or values.h provide them:
728 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
729 * for types < int: (unsigned TYPE)~(unsigned)0
730 * The argument to ~ must be unsigned so that later signed->unsigned
731 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
732 * and it must not be smaller than int because ~ does integral promotion.
733 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
734 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
735 * The latter is a hack which happens to work on some machines but
736 * does *not* catch any random system, or things like integer types
737 * with NaN if that is possible.
738 *
739 * All of the types are explicitly cast to prevent accidental loss of
740 * numeric range, and in the hope that they will be less likely to confuse
741 * over-eager optimizers.
742 *
743 */
27d4fb96 744
99abf803
PP
745#define PERL_UCHAR_MIN ((unsigned char)0)
746
747#ifdef UCHAR_MAX
748# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 749#else
99abf803
PP
750# ifdef MAXUCHAR
751# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 752# else
99abf803 753# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96
PP
754# endif
755#endif
99abf803
PP
756
757/*
758 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
759 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
760 * depending on local options. Until Configure detects this (or at least
761 * detects whether the "signed" keyword is available) the CHAR ranges
762 * will not be included. UCHAR functions normally.
763 * - kja
764 */
27d4fb96 765
99abf803
PP
766#define PERL_USHORT_MIN ((unsigned short)0)
767
768#ifdef USHORT_MAX
769# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 770#else
99abf803
PP
771# ifdef MAXUSHORT
772# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 773# else
99abf803 774# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96
PP
775# endif
776#endif
777
27d4fb96 778#ifdef SHORT_MAX
99abf803 779# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96
PP
780#else
781# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 782# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 783# else
99abf803 784# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96
PP
785# endif
786#endif
787
788#ifdef SHORT_MIN
99abf803 789# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96
PP
790#else
791# ifdef MINSHORT
99abf803 792# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96
PP
793# else
794# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
795# endif
796#endif
797
99abf803
PP
798#ifdef UINT_MAX
799# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 800#else
99abf803
PP
801# ifdef MAXUINT
802# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 803# else
99abf803 804# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96
PP
805# endif
806#endif
807
99abf803 808#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96
PP
809
810#ifdef INT_MAX
99abf803 811# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96
PP
812#else
813# ifdef MAXINT /* Often used in <values.h> */
99abf803 814# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 815# else
99abf803 816# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96
PP
817# endif
818#endif
819
820#ifdef INT_MIN
99abf803 821# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96
PP
822#else
823# ifdef MININT
99abf803 824# define PERL_INT_MIN ((int)MININT)
27d4fb96
PP
825# else
826# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
827# endif
828#endif
829
99abf803
PP
830#ifdef ULONG_MAX
831# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 832#else
99abf803
PP
833# ifdef MAXULONG
834# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 835# else
99abf803 836# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96
PP
837# endif
838#endif
839
99abf803 840#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 841
760ac839 842#ifdef LONG_MAX
99abf803 843# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW
844#else
845# ifdef MAXLONG /* Often used in <values.h> */
99abf803 846# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 847# else
99abf803 848# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW
849# endif
850#endif
851
852#ifdef LONG_MIN
99abf803 853# define PERL_LONG_MIN ((long)LONG_MIN)
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LW
854#else
855# ifdef MINLONG
99abf803 856# define PERL_LONG_MIN ((long)MINLONG)
760ac839 857# else
27d4fb96 858# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
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LW
859# endif
860#endif
861
99abf803
PP
862#ifdef HAS_QUAD
863
864# ifdef UQUAD_MAX
865# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 866# else
99abf803 867# define PERL_UQUAD_MAX (~(UV)0)
760ac839 868# endif
760ac839 869
99abf803 870# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 871
27d4fb96 872# ifdef QUAD_MAX
99abf803 873# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 874# else
99abf803 875# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96
PP
876# endif
877
878# ifdef QUAD_MIN
99abf803 879# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 880# else
a6e633de 881# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96
PP
882# endif
883
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LW
884#endif
885
ee0007ab 886typedef MEM_SIZE STRLEN;
450a55e4 887
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888typedef struct op OP;
889typedef struct cop COP;
890typedef struct unop UNOP;
891typedef struct binop BINOP;
892typedef struct listop LISTOP;
893typedef struct logop LOGOP;
894typedef struct condop CONDOP;
895typedef struct pmop PMOP;
896typedef struct svop SVOP;
897typedef struct gvop GVOP;
898typedef struct pvop PVOP;
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899typedef struct loop LOOP;
900
901typedef struct Outrec Outrec;
93a17b20 902typedef struct interpreter PerlInterpreter;
79072805 903typedef struct ff FF;
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904typedef struct sv SV;
905typedef struct av AV;
906typedef struct hv HV;
907typedef struct cv CV;
378cc40b 908typedef struct regexp REGEXP;
79072805 909typedef struct gp GP;
0c30d9ec 910typedef struct gv GV;
8990e307 911typedef struct io IO;
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LW
912typedef struct context CONTEXT;
913typedef struct block BLOCK;
914
915typedef struct magic MAGIC;
ed6116ce 916typedef struct xrv XRV;
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LW
917typedef struct xpv XPV;
918typedef struct xpviv XPVIV;
ff68c719 919typedef struct xpvuv XPVUV;
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920typedef struct xpvnv XPVNV;
921typedef struct xpvmg XPVMG;
922typedef struct xpvlv XPVLV;
923typedef struct xpvav XPVAV;
924typedef struct xpvhv XPVHV;
925typedef struct xpvgv XPVGV;
926typedef struct xpvcv XPVCV;
927typedef struct xpvbm XPVBM;
928typedef struct xpvfm XPVFM;
8990e307 929typedef struct xpvio XPVIO;
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LW
930typedef struct mgvtbl MGVTBL;
931typedef union any ANY;
8d063cd8 932
378cc40b 933#include "handy.h"
a0d0e21e 934
16d20bd9
AD
935typedef I32 (*filter_t) _((int, SV *, int));
936#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
937#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
938#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
939
748a9306 940#ifdef DOSISH
4633a7c4
LW
941# if defined(OS2)
942# include "os2ish.h"
943# else
748a9306 944# include "dosish.h"
4633a7c4 945# endif
a0d0e21e 946#else
748a9306
LW
947# if defined(VMS)
948# include "vmsish.h"
949# else
0c30d9ec
PP
950# if defined(PLAN9)
951# include "./plan9/plan9ish.h"
952# else
953# include "unixish.h"
954# endif
748a9306
LW
955# endif
956#endif
3fc1aec6
PP
957
958/* Some unistd.h's give a prototype for pause() even though
959 HAS_PAUSE ends up undefined. This causes the #define
960 below to be rejected by the compmiler. Sigh.
961*/
962#ifdef HAS_PAUSE
963#define Pause pause
964#else
965#define Pause() sleep((32767<<16)+32767)
748a9306
LW
966#endif
967
968#ifndef IOCPARM_LEN
969# ifdef IOCPARM_MASK
970 /* on BSDish systes we're safe */
971# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
972# else
973 /* otherwise guess at what's safe */
974# define IOCPARM_LEN(x) 256
975# endif
a0d0e21e
LW
976#endif
977
79072805
LW
978union any {
979 void* any_ptr;
980 I32 any_i32;
a0d0e21e 981 IV any_iv;
85e6fe83 982 long any_long;
a0d0e21e 983 void (*any_dptr) _((void*));
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LW
984};
985
378cc40b 986#include "regexp.h"
79072805 987#include "sv.h"
378cc40b 988#include "util.h"
8d063cd8 989#include "form.h"
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LW
990#include "gv.h"
991#include "cv.h"
992#include "opcode.h"
993#include "op.h"
994#include "cop.h"
995#include "av.h"
996#include "hv.h"
997#include "mg.h"
998#include "scope.h"
8d063cd8 999
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LW
1000/* work around some libPW problems */
1001#ifdef DOINIT
1002EXT char Error[1];
1003#endif
1004
450a55e4 1005#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW
1006# define I286
1007#endif
1008
fe14fcc3
LW
1009#if defined(htonl) && !defined(HAS_HTONL)
1010#define HAS_HTONL
ae986130 1011#endif
fe14fcc3
LW
1012#if defined(htons) && !defined(HAS_HTONS)
1013#define HAS_HTONS
ae986130 1014#endif
fe14fcc3
LW
1015#if defined(ntohl) && !defined(HAS_NTOHL)
1016#define HAS_NTOHL
ae986130 1017#endif
fe14fcc3
LW
1018#if defined(ntohs) && !defined(HAS_NTOHS)
1019#define HAS_NTOHS
ae986130 1020#endif
fe14fcc3 1021#ifndef HAS_HTONL
d9d8d8de 1022#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW
1023#define HAS_HTONS
1024#define HAS_HTONL
1025#define HAS_NTOHS
1026#define HAS_NTOHL
a687059c
LW
1027#define MYSWAP
1028#define htons my_swap
1029#define htonl my_htonl
1030#define ntohs my_swap
1031#define ntohl my_ntohl
1032#endif
1033#else
d9d8d8de 1034#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW
1035#undef HAS_HTONS
1036#undef HAS_HTONL
1037#undef HAS_NTOHS
1038#undef HAS_NTOHL
a687059c
LW
1039#endif
1040#endif
1041
988174c1
LW
1042/*
1043 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1044 * -DWS
1045 */
1046#if BYTEORDER != 0x1234
1047# define HAS_VTOHL
1048# define HAS_VTOHS
1049# define HAS_HTOVL
1050# define HAS_HTOVS
1051# if BYTEORDER == 0x4321
1052# define vtohl(x) ((((x)&0xFF)<<24) \
1053 +(((x)>>24)&0xFF) \
1054 +(((x)&0x0000FF00)<<8) \
1055 +(((x)&0x00FF0000)>>8) )
1056# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1057# define htovl(x) vtohl(x)
1058# define htovs(x) vtohs(x)
1059# endif
1060 /* otherwise default to functions in util.c */
1061#endif
1062
0f85fab0 1063#ifdef CASTNEGFLOAT
79072805 1064#define U_S(what) ((U16)(what))
0f85fab0 1065#define U_I(what) ((unsigned int)(what))
79072805 1066#define U_L(what) ((U32)(what))
0f85fab0 1067#else
a6e633de
PP
1068# ifdef __cplusplus
1069 extern "C" {
1070# endif
a0d0e21e 1071U32 cast_ulong _((double));
a6e633de
PP
1072# ifdef __cplusplus
1073 }
1074# endif
232e078e
AD
1075#define U_S(what) ((U16)cast_ulong((double)(what)))
1076#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1077#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW
1078#endif
1079
ed6116ce
LW
1080#ifdef CASTI32
1081#define I_32(what) ((I32)(what))
a0d0e21e 1082#define I_V(what) ((IV)(what))
5d94fbed 1083#define U_V(what) ((UV)(what))
ed6116ce 1084#else
a6e633de
PP
1085# ifdef __cplusplus
1086 extern "C" {
1087# endif
a0d0e21e 1088I32 cast_i32 _((double));
a0d0e21e 1089IV cast_iv _((double));
5d94fbed 1090UV cast_uv _((double));
a6e633de
PP
1091# ifdef __cplusplus
1092 }
1093# endif
1094#define I_32(what) (cast_i32((double)(what)))
1095#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1096#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW
1097#endif
1098
79072805
LW
1099struct Outrec {
1100 I32 o_lines;
d9d8d8de 1101 char *o_str;
79072805 1102 U32 o_len;
8d063cd8
LW
1103};
1104
352d5a3a
LW
1105#ifndef MAXSYSFD
1106# define MAXSYSFD 2
1107#endif
ee0007ab 1108
f82b3d41
PP
1109#ifndef TMPPATH
1110# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1111#endif
79072805
LW
1112
1113#ifndef __cplusplus
a0d0e21e
LW
1114Uid_t getuid _((void));
1115Uid_t geteuid _((void));
1116Gid_t getgid _((void));
1117Gid_t getegid _((void));
79072805 1118#endif
8d063cd8
LW
1119
1120#ifdef DEBUGGING
0c30d9ec 1121#ifndef Perl_debug_log
760ac839 1122#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1123#endif
d96024cf 1124#define YYDEBUG 1
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LW
1125#define DEB(a) a
1126#define DEBUG(a) if (debug) a
1127#define DEBUG_p(a) if (debug & 1) a
1128#define DEBUG_s(a) if (debug & 2) a
1129#define DEBUG_l(a) if (debug & 4) a
1130#define DEBUG_t(a) if (debug & 8) a
1131#define DEBUG_o(a) if (debug & 16) a
1132#define DEBUG_c(a) if (debug & 32) a
1133#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1134#define DEBUG_m(a) if (curinterp && debug & 128) a
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LW
1135#define DEBUG_f(a) if (debug & 256) a
1136#define DEBUG_r(a) if (debug & 512) a
1137#define DEBUG_x(a) if (debug & 1024) a
1138#define DEBUG_u(a) if (debug & 2048) a
1139#define DEBUG_L(a) if (debug & 4096) a
1140#define DEBUG_H(a) if (debug & 8192) a
1141#define DEBUG_X(a) if (debug & 16384) a
8990e307 1142#define DEBUG_D(a) if (debug & 32768) a
79072805
LW
1143#else
1144#define DEB(a)
1145#define DEBUG(a)
1146#define DEBUG_p(a)
1147#define DEBUG_s(a)
1148#define DEBUG_l(a)
1149#define DEBUG_t(a)
1150#define DEBUG_o(a)
1151#define DEBUG_c(a)
1152#define DEBUG_P(a)
1153#define DEBUG_m(a)
1154#define DEBUG_f(a)
1155#define DEBUG_r(a)
1156#define DEBUG_x(a)
1157#define DEBUG_u(a)
1158#define DEBUG_L(a)
1159#define DEBUG_H(a)
1160#define DEBUG_X(a)
8990e307 1161#define DEBUG_D(a)
8d063cd8 1162#endif
fe14fcc3 1163#define YYMAXDEPTH 300
8d063cd8 1164
a6e633de 1165#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW
1166#define assert(what) DEB( { \
1167 if (!(what)) { \
463ee0b2 1168 croak("Assertion failed: file \"%s\", line %d", \
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LW
1169 __FILE__, __LINE__); \
1170 exit(1); \
1171 }})
a6e633de 1172#endif
8d063cd8 1173
450a55e4 1174struct ufuncs {
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LW
1175 I32 (*uf_val)_((IV, SV*));
1176 I32 (*uf_set)_((IV, SV*));
1177 IV uf_index;
450a55e4
LW
1178};
1179
fe14fcc3 1180/* Fix these up for __STDC__ */
a0d0e21e
LW
1181#ifndef __cplusplus
1182char *mktemp _((char*));
1183double atof _((const char*));
1184#endif
79072805 1185
352d5a3a 1186#ifndef STANDARD_C
fe14fcc3 1187/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1188Time_t time();
8d063cd8 1189struct tm *gmtime(), *localtime();
93a17b20 1190char *strchr(), *strrchr();
378cc40b 1191char *strcpy(), *strcat();
352d5a3a 1192#endif /* ! STANDARD_C */
8d063cd8 1193
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LW
1194
1195#ifdef I_MATH
1196# include <math.h>
1197#else
1198# ifdef __cplusplus
1199 extern "C" {
1200# endif
a0d0e21e 1201 double exp _((double));
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LW
1202 double log _((double));
1203 double sqrt _((double));
1204 double modf _((double,double*));
1205 double sin _((double));
1206 double cos _((double));
1207 double atan2 _((double,double));
1208 double pow _((double,double));
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LW
1209# ifdef __cplusplus
1210 };
1211# endif
1212#endif
1213
a0d0e21e 1214#ifndef __cplusplus
3fc1aec6
PP
1215#ifdef __NeXT__ /* or whatever catches all NeXTs */
1216char *crypt (); /* Maybe more hosts will need the unprototyped version */
1217#else
a0d0e21e 1218char *crypt _((const char*, const char*));
3fc1aec6 1219#endif
1e422769 1220#ifndef getenv
a0d0e21e 1221char *getenv _((const char*));
1e422769 1222#endif
a0d0e21e
LW
1223Off_t lseek _((int,Off_t,int));
1224char *getlogin _((void));
1225#endif
79072805 1226
16d20bd9 1227#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1228#define UNLINK unlnk
a0d0e21e 1229I32 unlnk _((char*));
8d063cd8
LW
1230#else
1231#define UNLINK unlink
1232#endif
a687059c 1233
fe14fcc3 1234#ifndef HAS_SETREUID
85e6fe83
LW
1235# ifdef HAS_SETRESUID
1236# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1237# define HAS_SETREUID
1238# endif
a687059c 1239#endif
fe14fcc3 1240#ifndef HAS_SETREGID
85e6fe83
LW
1241# ifdef HAS_SETRESGID
1242# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1243# define HAS_SETREGID
1244# endif
a687059c 1245#endif
ee0007ab 1246
ff68c719
PP
1247typedef Signal_t (*Sighandler_t) _((int));
1248
1249#ifdef HAS_SIGACTION
1250typedef struct sigaction Sigsave_t;
1251#else
1252typedef Sighandler_t Sigsave_t;
1253#endif
1254
ee0007ab
LW
1255#define SCAN_DEF 0
1256#define SCAN_TR 1
1257#define SCAN_REPL 2
79072805
LW
1258
1259#ifdef DEBUGGING
4633a7c4 1260# ifndef register
a0d0e21e
LW
1261# define register
1262# endif
55497cff
PP
1263# ifdef MYMALLOC
1264# ifndef DEBUGGING_MSTATS
1265# define DEBUGGING_MSTATS
1266# endif
1267# endif
a0d0e21e 1268# define PAD_SV(po) pad_sv(po)
79072805 1269#else
a0d0e21e 1270# define PAD_SV(po) curpad[po]
79072805
LW
1271#endif
1272
1273/****************/
1274/* Truly global */
1275/****************/
1276
1277/* global state */
a0d0e21e 1278EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec
PP
1279/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1280#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
79072805 1281extern char ** environ; /* environment variables supplied via exec */
0c30d9ec
PP
1282#else
1283# if defined(NeXT) && defined(__DYNAMIC__)
1284
1285# include <mach-o/dyld.h>
1286EXT char *** environ_pointer;
1287# define environ (*environ_pointer)
1288# endif
1289#endif /* environ processing */
1290
79072805
LW
1291EXT int uid; /* current real user id */
1292EXT int euid; /* current effective user id */
1293EXT int gid; /* current real group id */
1294EXT int egid; /* current effective group id */
1295EXT bool nomemok; /* let malloc context handle nomem */
1296EXT U32 an; /* malloc sequence number */
463ee0b2 1297EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1298EXT U16 op_seqmax; /* op sequence number */
8990e307 1299EXT U32 evalseq; /* eval sequence number */
463ee0b2 1300EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805
LW
1301EXT char ** origenviron;
1302EXT U32 origalen;
44a8e56a 1303EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1304EXT U32 * profiledata;
84ea024a 1305EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1306EXT char * osname; /* operating system */
ff68c719 1307EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1308
a0d0e21e
LW
1309EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1310EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW
1311EXT double * xnv_root; /* free xnv list--shared by interpreters */
1312EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1313EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1314EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd
PP
1315EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1316EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1317
79072805
LW
1318/* Stack for currently executing thread--context switch must handle this. */
1319EXT SV ** stack_base; /* stack->array_ary */
1320EXT SV ** stack_sp; /* stack pointer now */
1321EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1322
1323/* likewise for these */
1324
1325EXT OP * op; /* current op--oughta be in a global register */
1326
1327EXT I32 * scopestack; /* blocks we've entered */
1328EXT I32 scopestack_ix;
1329EXT I32 scopestack_max;
1330
1331EXT ANY* savestack; /* to save non-local values on */
1332EXT I32 savestack_ix;
1333EXT I32 savestack_max;
1334
1335EXT OP ** retstack; /* returns we've pushed */
1336EXT I32 retstack_ix;
1337EXT I32 retstack_max;
1338
1339EXT I32 * markstack; /* stackmarks we're remembering */
1340EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1341EXT I32 * markstack_max; /* stackmarks we're remembering */
1342
1343EXT SV ** curpad;
1344
1345/* temp space */
1346EXT SV * Sv;
1347EXT XPV * Xpv;
f82b3d41 1348EXT char buf[2048]; /* should be longer than PATH_MAX */
79072805
LW
1349EXT char tokenbuf[256];
1350EXT struct stat statbuf;
ecfc5424 1351#ifdef HAS_TIMES
79072805
LW
1352EXT struct tms timesbuf;
1353#endif
463ee0b2 1354EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW
1355
1356/* for tmp use in stupid debuggers */
1357EXT int * di;
1358EXT short * ds;
1359EXT char * dc;
1360
1361/* handy constants */
71be2cbc
PP
1362EXTCONST char * Yes INIT("1");
1363EXTCONST char * No INIT("");
1364EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1365EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1366EXTCONST char * vert INIT("|");
79072805 1367
71be2cbc 1368EXTCONST char warn_uninit[]
a0d0e21e 1369 INIT("Use of uninitialized value");
71be2cbc 1370EXTCONST char warn_nosemi[]
463ee0b2 1371 INIT("Semicolon seems to be missing");
71be2cbc 1372EXTCONST char warn_reserved[]
463ee0b2 1373 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1374EXTCONST char warn_nl[]
93a17b20 1375 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1376EXTCONST char no_wrongref[]
a0d0e21e 1377 INIT("Can't use %s ref as %s ref");
71be2cbc 1378EXTCONST char no_symref[]
748a9306 1379 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1380EXTCONST char no_usym[]
8990e307 1381 INIT("Can't use an undefined value as %s reference");
71be2cbc 1382EXTCONST char no_aelem[]
93a17b20 1383 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1384EXTCONST char no_helem[]
93a17b20 1385 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1386EXTCONST char no_modify[]
93a17b20 1387 INIT("Modification of a read-only value attempted");
71be2cbc 1388EXTCONST char no_mem[]
93a17b20 1389 INIT("Out of memory!\n");
71be2cbc 1390EXTCONST char no_security[]
463ee0b2 1391 INIT("Insecure dependency in %s%s");
71be2cbc 1392EXTCONST char no_sock_func[]
93a17b20 1393 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1394EXTCONST char no_dir_func[]
93a17b20 1395 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1396EXTCONST char no_func[]
93a17b20 1397 INIT("The %s function is unimplemented");
71be2cbc 1398EXTCONST char no_myglob[]
748a9306 1399 INIT("\"my\" variable %s can't be in a package");
93a17b20 1400
79072805
LW
1401EXT SV sv_undef;
1402EXT SV sv_no;
1403EXT SV sv_yes;
1404#ifdef CSH
1405 EXT char * cshname INIT(CSH);
1406 EXT I32 cshlen;
1407#endif
1408
1409#ifdef DOINIT
8e07c86e
AD
1410EXT char *sig_name[] = { SIG_NAME };
1411EXT int sig_num[] = { SIG_NUM };
0c30d9ec
PP
1412EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1413EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW
1414#else
1415EXT char *sig_name[];
8e07c86e 1416EXT int sig_num[];
0c30d9ec
PP
1417EXT SV * psig_ptr[];
1418EXT SV * psig_name[];
79072805
LW
1419#endif
1420
bbce6d69
PP
1421/* fast case folding tables */
1422
79072805 1423#ifdef DOINIT
36477c24 1424EXTCONST unsigned char fold[] = {
79072805
LW
1425 0, 1, 2, 3, 4, 5, 6, 7,
1426 8, 9, 10, 11, 12, 13, 14, 15,
1427 16, 17, 18, 19, 20, 21, 22, 23,
1428 24, 25, 26, 27, 28, 29, 30, 31,
1429 32, 33, 34, 35, 36, 37, 38, 39,
1430 40, 41, 42, 43, 44, 45, 46, 47,
1431 48, 49, 50, 51, 52, 53, 54, 55,
1432 56, 57, 58, 59, 60, 61, 62, 63,
1433 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1434 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1435 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1436 'x', 'y', 'z', 91, 92, 93, 94, 95,
1437 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1438 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1439 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1440 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1441 128, 129, 130, 131, 132, 133, 134, 135,
1442 136, 137, 138, 139, 140, 141, 142, 143,
1443 144, 145, 146, 147, 148, 149, 150, 151,
1444 152, 153, 154, 155, 156, 157, 158, 159,
1445 160, 161, 162, 163, 164, 165, 166, 167,
1446 168, 169, 170, 171, 172, 173, 174, 175,
1447 176, 177, 178, 179, 180, 181, 182, 183,
1448 184, 185, 186, 187, 188, 189, 190, 191,
1449 192, 193, 194, 195, 196, 197, 198, 199,
1450 200, 201, 202, 203, 204, 205, 206, 207,
1451 208, 209, 210, 211, 212, 213, 214, 215,
1452 216, 217, 218, 219, 220, 221, 222, 223,
1453 224, 225, 226, 227, 228, 229, 230, 231,
1454 232, 233, 234, 235, 236, 237, 238, 239,
1455 240, 241, 242, 243, 244, 245, 246, 247,
1456 248, 249, 250, 251, 252, 253, 254, 255
1457};
1458#else
71be2cbc 1459EXTCONST unsigned char fold[];
79072805
LW
1460#endif
1461
1462#ifdef DOINIT
bbce6d69
PP
1463EXT unsigned char fold_locale[] = {
1464 0, 1, 2, 3, 4, 5, 6, 7,
1465 8, 9, 10, 11, 12, 13, 14, 15,
1466 16, 17, 18, 19, 20, 21, 22, 23,
1467 24, 25, 26, 27, 28, 29, 30, 31,
1468 32, 33, 34, 35, 36, 37, 38, 39,
1469 40, 41, 42, 43, 44, 45, 46, 47,
1470 48, 49, 50, 51, 52, 53, 54, 55,
1471 56, 57, 58, 59, 60, 61, 62, 63,
1472 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1473 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1474 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1475 'x', 'y', 'z', 91, 92, 93, 94, 95,
1476 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1477 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1478 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1479 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1480 128, 129, 130, 131, 132, 133, 134, 135,
1481 136, 137, 138, 139, 140, 141, 142, 143,
1482 144, 145, 146, 147, 148, 149, 150, 151,
1483 152, 153, 154, 155, 156, 157, 158, 159,
1484 160, 161, 162, 163, 164, 165, 166, 167,
1485 168, 169, 170, 171, 172, 173, 174, 175,
1486 176, 177, 178, 179, 180, 181, 182, 183,
1487 184, 185, 186, 187, 188, 189, 190, 191,
1488 192, 193, 194, 195, 196, 197, 198, 199,
1489 200, 201, 202, 203, 204, 205, 206, 207,
1490 208, 209, 210, 211, 212, 213, 214, 215,
1491 216, 217, 218, 219, 220, 221, 222, 223,
1492 224, 225, 226, 227, 228, 229, 230, 231,
1493 232, 233, 234, 235, 236, 237, 238, 239,
1494 240, 241, 242, 243, 244, 245, 246, 247,
1495 248, 249, 250, 251, 252, 253, 254, 255
1496};
1497#else
1498EXT unsigned char fold_locale[];
1499#endif
1500
1501#ifdef DOINIT
71be2cbc 1502EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW
1503 1, 2, 84, 151, 154, 155, 156, 157,
1504 165, 246, 250, 3, 158, 7, 18, 29,
1505 40, 51, 62, 73, 85, 96, 107, 118,
1506 129, 140, 147, 148, 149, 150, 152, 153,
1507 255, 182, 224, 205, 174, 176, 180, 217,
1508 233, 232, 236, 187, 235, 228, 234, 226,
1509 222, 219, 211, 195, 188, 193, 185, 184,
1510 191, 183, 201, 229, 181, 220, 194, 162,
1511 163, 208, 186, 202, 200, 218, 198, 179,
1512 178, 214, 166, 170, 207, 199, 209, 206,
1513 204, 160, 212, 216, 215, 192, 175, 173,
1514 243, 172, 161, 190, 203, 189, 164, 230,
1515 167, 248, 227, 244, 242, 255, 241, 231,
1516 240, 253, 169, 210, 245, 237, 249, 247,
1517 239, 168, 252, 251, 254, 238, 223, 221,
1518 213, 225, 177, 197, 171, 196, 159, 4,
1519 5, 6, 8, 9, 10, 11, 12, 13,
1520 14, 15, 16, 17, 19, 20, 21, 22,
1521 23, 24, 25, 26, 27, 28, 30, 31,
1522 32, 33, 34, 35, 36, 37, 38, 39,
1523 41, 42, 43, 44, 45, 46, 47, 48,
1524 49, 50, 52, 53, 54, 55, 56, 57,
1525 58, 59, 60, 61, 63, 64, 65, 66,
1526 67, 68, 69, 70, 71, 72, 74, 75,
1527 76, 77, 78, 79, 80, 81, 82, 83,
1528 86, 87, 88, 89, 90, 91, 92, 93,
1529 94, 95, 97, 98, 99, 100, 101, 102,
1530 103, 104, 105, 106, 108, 109, 110, 111,
1531 112, 113, 114, 115, 116, 117, 119, 120,
1532 121, 122, 123, 124, 125, 126, 127, 128,
1533 130, 131, 132, 133, 134, 135, 136, 137,
1534 138, 139, 141, 142, 143, 144, 145, 146
1535};
1536#else
71be2cbc 1537EXTCONST unsigned char freq[];
79072805
LW
1538#endif
1539
8990e307
LW
1540#ifdef DEBUGGING
1541#ifdef DOINIT
71be2cbc 1542EXTCONST char* block_type[] = {
8990e307
LW
1543 "NULL",
1544 "SUB",
1545 "EVAL",
1546 "LOOP",
1547 "SUBST",
1548 "BLOCK",
1549};
1550#else
71be2cbc 1551EXTCONST char* block_type[];
8990e307
LW
1552#endif
1553#endif
1554
79072805
LW
1555/*****************************************************************************/
1556/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1557/*****************************************************************************/
8990e307 1558/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1559
a0d0e21e
LW
1560#include "perly.h"
1561
79072805
LW
1562typedef enum {
1563 XOPERATOR,
1564 XTERM,
79072805 1565 XREF,
8990e307 1566 XSTATE,
a0d0e21e
LW
1567 XBLOCK,
1568 XTERMBLOCK
79072805
LW
1569} expectation;
1570
a0d0e21e
LW
1571EXT U32 lex_state; /* next token is determined */
1572EXT U32 lex_defer; /* state after determined token */
1573EXT expectation lex_expect; /* expect after determined token */
1574EXT I32 lex_brackets; /* bracket count */
1575EXT I32 lex_formbrack; /* bracket count at outer format level */
1576EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1577EXT I32 lex_casemods; /* casemod count */
1578EXT I32 lex_dojoin; /* doing an array interpolation */
1579EXT I32 lex_starts; /* how many interps done on level */
1580EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1581EXT SV * lex_repl; /* runtime replacement from s/// */
1582EXT OP * lex_op; /* extra info to pass back on op */
1583EXT OP * lex_inpat; /* in pattern $) and $| are special */
1584EXT I32 lex_inwhat; /* what kind of quoting are we in */
1585EXT char * lex_brackstack; /* what kind of brackets to pop */
1586EXT char * lex_casestack; /* what kind of case mods in effect */
1587
1588/* What we know when we're in LEX_KNOWNEXT state. */
1589EXT YYSTYPE nextval[5]; /* value of next token, if any */
1590EXT I32 nexttype[5]; /* type of next token */
1591EXT I32 nexttoke;
1592
760ac839 1593EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW
1594EXT SV * linestr;
1595EXT char * bufptr;
1596EXT char * oldbufptr;
1597EXT char * oldoldbufptr;
1598EXT char * bufend;
8990e307 1599EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1600EXT AV * rsfp_filters;
79072805
LW
1601
1602EXT I32 multi_start; /* 1st line of multi-line string */
1603EXT I32 multi_end; /* last line of multi-line string */
1604EXT I32 multi_open; /* delimiter of said string */
1605EXT I32 multi_close; /* delimiter of said string */
1606
1607EXT GV * scrgv;
1608EXT I32 error_count; /* how many errors so far, max 10 */
1609EXT I32 subline; /* line this subroutine began on */
1610EXT SV * subname; /* name of current subroutine */
1611
748a9306 1612EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1613EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW
1614EXT AV * comppad_name; /* variable names for "my" variables */
1615EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1616EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW
1617EXT I32 min_intro_pending;/* start of vars to introduce */
1618EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1619EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1620EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1621EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW
1622EXT COP compiling;
1623
79072805
LW
1624EXT I32 thisexpr; /* name id for nothing_in_common() */
1625EXT char * last_uni; /* position of last named-unary operator */
1626EXT char * last_lop; /* position of last list operator */
8990e307 1627EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1628EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW
1629#ifdef FCRYPT
1630EXT I32 cryptseen; /* has fast crypt() been initialized? */
1631#endif
1632
85e6fe83
LW
1633EXT U32 hints; /* various compilation flags */
1634
1635 /* Note: the lowest 8 bits are reserved for
1636 stuffing into op->op_private */
1637#define HINT_INTEGER 0x00000001
1638#define HINT_STRICT_REFS 0x00000002
1639
1640#define HINT_BLOCK_SCOPE 0x00000100
1641#define HINT_STRICT_SUBS 0x00000200
1642#define HINT_STRICT_VARS 0x00000400
bbce6d69 1643#define HINT_LOCALE 0x00000800
85e6fe83 1644
79072805
LW
1645/**************************************************************************/
1646/* This regexp stuff is global since it always happens within 1 expr eval */
1647/**************************************************************************/
1648
1649EXT char * regprecomp; /* uncompiled string. */
1650EXT char * regparse; /* Input-scan pointer. */
1651EXT char * regxend; /* End of input for compile */
1652EXT I32 regnpar; /* () count. */
1653EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1654EXT I32 regsize; /* Code size. */
a0d0e21e 1655EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW
1656EXT I32 regsawback; /* Did we see \1, ...? */
1657
1658EXT char * reginput; /* String-input pointer. */
79072805
LW
1659EXT char * regbol; /* Beginning of input, for ^ check. */
1660EXT char * regeol; /* End of input, for $ check. */
1661EXT char ** regstartp; /* Pointer to startp array. */
1662EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1663EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1664EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW
1665EXT U16 regflags; /* are we folding, multilining? */
1666EXT char regprev; /* char before regbol, \n if none */
79072805 1667
760ac839
LW
1668EXT bool do_undump; /* -u or dump seen? */
1669EXT VOL U32 debug;
1670
79072805
LW
1671/***********************************************/
1672/* Global only to current interpreter instance */
1673/***********************************************/
1674
8990e307 1675#ifdef MULTIPLICITY
79072805
LW
1676#define IEXT
1677#define IINIT(x)
1678struct interpreter {
1679#else
1680#define IEXT EXT
1681#define IINIT(x) INIT(x)
1682#endif
1683
1684/* pseudo environmental stuff */
1685IEXT int Iorigargc;
1686IEXT char ** Iorigargv;
1687IEXT GV * Ienvgv;
1688IEXT GV * Isiggv;
1689IEXT GV * Iincgv;
1690IEXT char * Iorigfilename;
748a9306
LW
1691IEXT SV * Idiehook;
1692IEXT SV * Iwarnhook;
1693IEXT SV * Iparsehook;
79072805 1694
c07a80fd
PP
1695/* Various states of an input record separator SV (rs, nrs) */
1696#define RsSNARF(sv) (! SvOK(sv))
1697#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1698#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1699
79072805
LW
1700/* switches */
1701IEXT char * Icddir;
1702IEXT bool Iminus_c;
a5f75d66 1703IEXT char Ipatchlevel[10];
728e2803 1704IEXT char ** Ilocalpatches;
c07a80fd 1705IEXT SV * Inrs;
2304df62 1706IEXT char * Isplitstr IINIT(" ");
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1707IEXT bool Ipreprocess;
1708IEXT bool Iminus_n;
1709IEXT bool Iminus_p;
1710IEXT bool Iminus_l;
1711IEXT bool Iminus_a;
2304df62 1712IEXT bool Iminus_F;
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1713IEXT bool Idoswitches;
1714IEXT bool Idowarn;
1715IEXT bool Idoextract;
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1716IEXT bool Isawampersand; /* must save all match strings */
1717IEXT bool Isawstudy; /* do fbm_instr on all strings */
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1718IEXT bool Isawvec;
1719IEXT bool Iunsafe;
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1720IEXT char * Iinplace;
1721IEXT char * Ie_tmpname;
760ac839 1722IEXT PerlIO * Ie_fp;
79072805 1723IEXT U32 Iperldb;
748a9306 1724 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1725IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
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1726
1727/* magical thingies */
85e6fe83 1728IEXT Time_t Ibasetime; /* $^T */
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1729IEXT SV * Iformfeed; /* $^L */
1730IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1731IEXT SV * Irs; /* $/ */
79072805 1732IEXT char * Iofs; /* $, */
8990e307 1733IEXT STRLEN Iofslen;
79072805 1734IEXT char * Iors; /* $\ */
8990e307 1735IEXT STRLEN Iorslen;
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1736IEXT char * Iofmt; /* $# */
1737IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1738IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1739IEXT I32 Istatusvalue; /* $? */
f86702cc 1740#ifdef VMS
ff0cee69 1741IEXT U32 Istatusvalue_vms;
f86702cc 1742#endif
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1743
1744IEXT struct stat Istatcache; /* _ */
1745IEXT GV * Istatgv;
1746IEXT SV * Istatname IINIT(Nullsv);
1747
1748/* shortcuts to various I/O objects */
1749IEXT GV * Istdingv;
1750IEXT GV * Ilast_in_gv;
1751IEXT GV * Idefgv;
1752IEXT GV * Iargvgv;
1753IEXT GV * Idefoutgv;
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1754IEXT GV * Iargvoutgv;
1755
1756/* shortcuts to regexp stuff */
1757IEXT GV * Ileftgv;
1758IEXT GV * Iampergv;
1759IEXT GV * Irightgv;
1760IEXT PMOP * Icurpm; /* what to do \ interps from */
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1761IEXT I32 * Iscreamfirst;
1762IEXT I32 * Iscreamnext;
1763IEXT I32 Imaxscream IINIT(-1);
1764IEXT SV * Ilastscream;
1765
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1766/* shortcuts to misc objects */
1767IEXT GV * Ierrgv;
1768
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1769/* shortcuts to debugging objects */
1770IEXT GV * IDBgv;
1771IEXT GV * IDBline;
1772IEXT GV * IDBsub;
1773IEXT SV * IDBsingle;
1774IEXT SV * IDBtrace;
1775IEXT SV * IDBsignal;
1776IEXT AV * Ilineary; /* lines of script for debugger */
1777IEXT AV * Idbargs; /* args to call listed by caller function */
1778
1779/* symbol tables */
1780IEXT HV * Idefstash; /* main symbol table */
1781IEXT HV * Icurstash; /* symbol table for current package */
1782IEXT HV * Idebstash; /* symbol table for perldb package */
1783IEXT SV * Icurstname; /* name of current package */
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1784IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1785IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1786IEXT HV * Istrtab; /* shared string table */
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1787
1788/* memory management */
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1789IEXT SV ** Itmps_stack;
1790IEXT I32 Itmps_ix IINIT(-1);
1791IEXT I32 Itmps_floor IINIT(-1);
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1792IEXT I32 Itmps_max;
1793IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1794IEXT I32 Isv_objcount; /* how many objects are currently allocated */
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1795IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1796IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
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1797
1798/* funky return mechanisms */
1799IEXT I32 Ilastspbase;
1800IEXT I32 Ilastsize;
1801IEXT int Iforkprocess; /* so do_open |- can return proc# */
1802
1803/* subprocess state */
1804IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
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1805
1806/* internal state */
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1807IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1808IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1809IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1810IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1811IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1812IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1813IEXT bool Itainting; /* doing taint checks */
e50aee73 1814IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
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1815
1816/* trace state */
1817IEXT I32 Idlevel;
1818IEXT I32 Idlmax IINIT(128);
1819IEXT char * Idebname;
1820IEXT char * Idebdelim;
1821
1822/* current interpreter roots */
748a9306 1823IEXT CV * Imain_cv;
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1824IEXT OP * Imain_root;
1825IEXT OP * Imain_start;
1826IEXT OP * Ieval_root;
1827IEXT OP * Ieval_start;
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1828
1829/* runtime control stuff */
1830IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1831IEXT COP * Icurcopdb IINIT(NULL);
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1832IEXT line_t Icopline IINIT(NOLINE);
1833IEXT CONTEXT * Icxstack;
1834IEXT I32 Icxstack_ix IINIT(-1);
1835IEXT I32 Icxstack_max IINIT(128);
a5f75d66 1836IEXT Sigjmp_buf Itop_env;
a0d0e21e 1837IEXT I32 Irunlevel;
1e422769 1838IEXT bool Imustcatch; /* doeval() must be caught locally */
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1839
1840/* stack stuff */
0c30d9ec 1841IEXT AV * Icurstack; /* THE STACK */
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1842IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1843IEXT SV ** Imystack_base; /* stack->array_ary */
1844IEXT SV ** Imystack_sp; /* stack pointer now */
1845IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1846
1847/* format accumulators */
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1848IEXT SV * Iformtarget;
1849IEXT SV * Ibodytarget;
1850IEXT SV * Itoptarget;
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1851
1852/* statics moved here for shared library purposes */
93a17b20 1853IEXT SV Istrchop; /* return value from chop */
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1854IEXT int Ifilemode; /* so nextargv() can preserve mode */
1855IEXT int Ilastfd; /* what to preserve mode on */
1856IEXT char * Ioldname; /* what to preserve mode on */
1857IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1858IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1859IEXT OP * Isortcop; /* user defined sort routine */
1860IEXT HV * Isortstash; /* which is in some package or other */
1861IEXT GV * Ifirstgv; /* $a */
1862IEXT GV * Isecondgv; /* $b */
1863IEXT AV * Isortstack; /* temp stack during pp_sort() */
1864IEXT AV * Isignalstack; /* temp stack during sighandler() */
1865IEXT SV * Imystrk; /* temp key string for do_each() */
1866IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
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1867IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1868IEXT I32 Igensym; /* next symbol for getsym() to define */
1869IEXT bool Ipreambled;
3c81428c 1870IEXT AV * Ipreambleav;
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1871IEXT int Ilaststatval IINIT(-1);
1872IEXT I32 Ilaststype IINIT(OP_STAT);
1873
1874#undef IEXT
1875#undef IINIT
1876
8990e307 1877#ifdef MULTIPLICITY
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1878};
1879#else
1880struct interpreter {
1881 char broiled;
1882};
1883#endif
1884
1885#include "pp.h"
1886
1887#ifdef __cplusplus
1888extern "C" {
1889#endif
1890
1891#include "proto.h"
1892
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LW
1893#ifdef EMBED
1894#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1895#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1896#else
1897#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1898#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1899#endif
1900
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1901#ifdef __cplusplus
1902};
1903#endif
1904
93a17b20 1905/* The following must follow proto.h */
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1906
1907#ifdef DOINIT
bbce6d69 1908
4633a7c4 1909EXT MGVTBL vtbl_sv = {magic_get,
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1910 magic_set,
1911 magic_len,
1912 0, 0};
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LW
1913EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1914EXT MGVTBL vtbl_envelem = {0, magic_setenv,
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LW
1915 0, magic_clearenv,
1916 0};
4633a7c4 1917EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
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PP
1918EXT MGVTBL vtbl_sigelem = {magic_getsig,
1919 magic_setsig,
1920 0, magic_clearsig,
1921 0};
4633a7c4 1922EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1923 0};
4633a7c4 1924EXT MGVTBL vtbl_packelem = {magic_getpack,
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1925 magic_setpack,
1926 0, magic_clearpack,
1927 0};
4633a7c4 1928EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1929 0, 0, 0};
4633a7c4 1930EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1931 0, 0, 0};
4633a7c4 1932EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1933 0, 0, 0};
4633a7c4 1934EXT MGVTBL vtbl_arylen = {magic_getarylen,
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1935 magic_setarylen,
1936 0, 0, 0};
4633a7c4 1937EXT MGVTBL vtbl_glob = {magic_getglob,
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1938 magic_setglob,
1939 0, 0, 0};
4633a7c4 1940EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1941 0, 0, 0};
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PP
1942EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1943 0, 0, 0};
4633a7c4 1944EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1945 0, 0, 0};
4633a7c4 1946EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1947 0, 0, 0};
4633a7c4 1948EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1949 0, 0, 0};
4633a7c4 1950EXT MGVTBL vtbl_pos = {magic_getpos,
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1951 magic_setpos,
1952 0, 0, 0};
4633a7c4 1953EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1954 0, 0, 0};
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PP
1955EXT MGVTBL vtbl_fm = {0, magic_setfm,
1956 0, 0, 0};
4633a7c4 1957EXT MGVTBL vtbl_uvar = {magic_getuvar,
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LW
1958 magic_setuvar,
1959 0, 0, 0};
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PP
1960EXT MGVTBL vtbl_itervar = {magic_getitervar,magic_setitervar,
1961 0, 0, magic_freeitervar};
a0d0e21e 1962
36477c24 1963#ifdef USE_LOCALE_COLLATE
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PP
1964EXT MGVTBL vtbl_collxfrm = {0,
1965 magic_setcollxfrm,
1966 0, 0, 0};
1967#endif
1968
a0d0e21e 1969#ifdef OVERLOAD
4633a7c4 1970EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1971 0, 0, magic_setamagic};
4633a7c4 1972EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1973 0, 0, magic_setamagic};
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1974#endif /* OVERLOAD */
1975
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PP
1976#else /* !DOINIT */
1977
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1978EXT MGVTBL vtbl_sv;
1979EXT MGVTBL vtbl_env;
1980EXT MGVTBL vtbl_envelem;
1981EXT MGVTBL vtbl_sig;
1982EXT MGVTBL vtbl_sigelem;
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1983EXT MGVTBL vtbl_pack;
1984EXT MGVTBL vtbl_packelem;
79072805 1985EXT MGVTBL vtbl_dbline;
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1986EXT MGVTBL vtbl_isa;
1987EXT MGVTBL vtbl_isaelem;
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1988EXT MGVTBL vtbl_arylen;
1989EXT MGVTBL vtbl_glob;
93a17b20 1990EXT MGVTBL vtbl_mglob;
99abf803 1991EXT MGVTBL vtbl_nkeys;
463ee0b2 1992EXT MGVTBL vtbl_taint;
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1993EXT MGVTBL vtbl_substr;
1994EXT MGVTBL vtbl_vec;
a0d0e21e 1995EXT MGVTBL vtbl_pos;
79072805 1996EXT MGVTBL vtbl_bm;
55497cff 1997EXT MGVTBL vtbl_fm;
79072805 1998EXT MGVTBL vtbl_uvar;
71be2cbc 1999EXT MGVTBL vtbl_itervar;
a0d0e21e 2000
36477c24 2001#ifdef USE_LOCALE_COLLATE
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PP
2002EXT MGVTBL vtbl_collxfrm;
2003#endif
2004
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2005#ifdef OVERLOAD
2006EXT MGVTBL vtbl_amagic;
2007EXT MGVTBL vtbl_amagicelem;
2008#endif /* OVERLOAD */
2009
bbce6d69 2010#endif /* !DOINIT */
85e6fe83 2011
a0d0e21e 2012#ifdef OVERLOAD
c0315cdf 2013
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LW
2014EXT long amagic_generation;
2015
a6006777 2016#define NofAMmeth 58
a0d0e21e 2017#ifdef DOINIT
a6006777
PP
2018EXTCONST char * AMG_names[NofAMmeth] = {
2019 "fallback", "abs", /* "fallback" should be the first. */
2020 "bool", "nomethod",
2021 "\"\"", "0+",
2022 "+", "+=",
2023 "-", "-=",
2024 "*", "*=",
2025 "/", "/=",
2026 "%", "%=",
2027 "**", "**=",
2028 "<<", "<<=",
2029 ">>", ">>=",
2030 "&", "&=",
2031 "|", "|=",
2032 "^", "^=",
2033 "<", "<=",
2034 ">", ">=",
2035 "==", "!=",
2036 "<=>", "cmp",
2037 "lt", "le",
2038 "gt", "ge",
2039 "eq", "ne",
2040 "!", "~",
2041 "++", "--",
2042 "atan2", "cos",
2043 "sin", "exp",
2044 "log", "sqrt",
2045 "x", "x=",
2046 ".", ".=",
2047 "=", "neg"
a0d0e21e
LW
2048};
2049#else
a6006777 2050EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW
2051#endif /* def INITAMAGIC */
2052
a6006777 2053struct am_table {
a0d0e21e
LW
2054 long was_ok_sub;
2055 long was_ok_am;
a6006777
PP
2056 U32 flags;
2057 CV* table[NofAMmeth];
a0d0e21e
LW
2058 long fallback;
2059};
a6006777
PP
2060struct am_table_short {
2061 long was_ok_sub;
2062 long was_ok_am;
2063 U32 flags;
2064};
a0d0e21e 2065typedef struct am_table AMT;
a6006777 2066typedef struct am_table_short AMTS;
a0d0e21e
LW
2067
2068#define AMGfallNEVER 1
2069#define AMGfallNO 2
2070#define AMGfallYES 3
2071
a6006777
PP
2072#define AMTf_AMAGIC 1
2073#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2074#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2075#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2076
a0d0e21e
LW
2077enum {
2078 fallback_amg, abs_amg,
2079 bool__amg, nomethod_amg,
2080 string_amg, numer_amg,
2081 add_amg, add_ass_amg,
2082 subtr_amg, subtr_ass_amg,
2083 mult_amg, mult_ass_amg,
2084 div_amg, div_ass_amg,
2085 mod_amg, mod_ass_amg,
2086 pow_amg, pow_ass_amg,
2087 lshift_amg, lshift_ass_amg,
2088 rshift_amg, rshift_ass_amg,
748a9306
LW
2089 band_amg, band_ass_amg,
2090 bor_amg, bor_ass_amg,
2091 bxor_amg, bxor_ass_amg,
a0d0e21e
LW
2092 lt_amg, le_amg,
2093 gt_amg, ge_amg,
2094 eq_amg, ne_amg,
2095 ncmp_amg, scmp_amg,
2096 slt_amg, sle_amg,
2097 sgt_amg, sge_amg,
2098 seq_amg, sne_amg,
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LW
2099 not_amg, compl_amg,
2100 inc_amg, dec_amg,
2101 atan2_amg, cos_amg,
2102 sin_amg, exp_amg,
2103 log_amg, sqrt_amg,
2104 repeat_amg, repeat_ass_amg,
748a9306
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2105 concat_amg, concat_ass_amg,
2106 copy_amg, neg_amg
a0d0e21e 2107};
c0315cdf
JH
2108
2109/*
2110 * some compilers like to redefine cos et alia as faster
2111 * (and less accurate?) versions called F_cos et cetera (Quidquid
2112 * latine dictum sit, altum viditur.) This trick collides with
2113 * the Perl overloading (amg). The following #defines fool both.
2114 */
2115
2116#ifdef _FASTMATH
2117# ifdef atan2
2118# define F_atan2_amg atan2_amg
2119# endif
2120# ifdef cos
2121# define F_cos_amg cos_amg
2122# endif
2123# ifdef exp
2124# define F_exp_amg exp_amg
2125# endif
2126# ifdef log
2127# define F_log_amg log_amg
2128# endif
2129# ifdef pow
2130# define F_pow_amg pow_amg
2131# endif
2132# ifdef sin
2133# define F_sin_amg sin_amg
2134# endif
2135# ifdef sqrt
2136# define F_sqrt_amg sqrt_amg
2137# endif
2138#endif /* _FASTMATH */
2139
a0d0e21e 2140#endif /* OVERLOAD */
36477c24
PP
2141
2142#ifdef USE_LOCALE_COLLATE
bbce6d69
PP
2143EXT U32 collation_ix; /* Collation generation index */
2144EXT char * collation_name; /* Name of current collation */
2145EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2146EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2147EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2148#endif /* USE_LOCALE_COLLATE */
bbce6d69 2149
36477c24 2150#ifdef USE_LOCALE_NUMERIC
bbce6d69
PP
2151
2152EXT char * numeric_name; /* Name of current numeric locale */
2153EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2154EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2155
36477c24
PP
2156#define SET_NUMERIC_STANDARD() \
2157 STMT_START { \
2158 if (! numeric_standard) \
2159 perl_set_numeric_standard(); \
2160 } STMT_END
2161
2162#define SET_NUMERIC_LOCAL() \
2163 STMT_START { \
2164 if (! numeric_local) \
2165 perl_set_numeric_local(); \
2166 } STMT_END
bbce6d69 2167
36477c24 2168#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2169
36477c24
PP
2170#define SET_NUMERIC_STANDARD() /**/
2171#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2172
36477c24 2173#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2174
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LW
2175#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2176/*
2177 * Now we have __attribute__ out of the way
2178 * Remap printf
2179 */
2180#define printf PerlIO_stdoutf
2181#endif
2182
85e6fe83 2183#endif /* Include guard */
a6e633de 2184