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Revision 10724, 57.0 KB checked in by ghudson, 27 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r10723, which included commits to RCS files with non-trunk default branches.

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1	/* perl.h
2	*
3	* Copyright (c) 1987-1997, Larry Wall
4	*
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.
7	*
8	*/
9	#ifndef H_PERL
10	#define H_PERL 1
11	#define OVERLOAD
12
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	*/
19	#undef EMBED
20	#undef NO_EMBED
21	#define NO_EMBED
22	#undef MULTIPLICITY
23	#undef USE_STDIO
24	#define USE_STDIO
25	#endif /* PERL_FOR_X2P */
26
27	#define VOIDUSED 1
28	#include "config.h"
29
30	#include "embed.h"
31
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__) && !defined(__cplusplus)
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
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
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	*/
81
82	/* define this once if either system, instead of cluttering up the src */
83	#if defined(MSDOS) \|\| defined(atarist) \|\| defined(WIN32)
84	#define DOSISH 1
85	#endif
86
87	#if defined(__STDC__) \|\| defined(vax11c) \|\| defined(_AIX) \|\| defined(__stdc__) \|\| defined(__cplusplus)
88	# define STANDARD_C 1
89	#endif
90
91	#if defined(__cplusplus) \|\| defined(WIN32)
92	# define DONT_DECLARE_STD 1
93	#endif
94
95	#if defined(HASVOLATILE) \|\| defined(STANDARD_C)
96	# ifdef __cplusplus
97	# define VOL // to temporarily suppress warnings
98	# else
99	# define VOL volatile
100	# endif
101	#else
102	# define VOL
103	#endif
104
105	#define TAINT (tainted = TRUE)
106	#define TAINT_NOT (tainted = FALSE)
107	#define TAINT_IF(c) if (c) { tainted = TRUE; }
108	#define TAINT_ENV() if (tainting) { taint_env(); }
109	#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
110
111	/* XXX All process group stuff is handled in pp_sys.c. Should these
112	defines move there? If so, I could simplify this a lot. --AD 9/96.
113	*/
114	/* Process group stuff changed from traditional BSD to POSIX.
115	perlfunc.pod documents the traditional BSD-style syntax, so we'll
116	try to preserve that, if possible.
117	*/
118	#ifdef HAS_SETPGID
119	# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
120	#else
121	# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
122	# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
123	# else
124	# ifdef HAS_SETPGRP2 /* DG/UX */
125	# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
126	# endif
127	# endif
128	#endif
129	#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
130	# define HAS_SETPGRP /* Well, effectively it does . . . */
131	#endif
132
133	/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
134	our life easier :-) so we'll try it.
135	*/
136	#ifdef HAS_GETPGID
137	# define BSD_GETPGRP(pid) getpgid((pid))
138	#else
139	# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
140	# define BSD_GETPGRP(pid) getpgrp((pid))
141	# else
142	# ifdef HAS_GETPGRP2 /* DG/UX */
143	# define BSD_GETPGRP(pid) getpgrp2((pid))
144	# endif
145	# endif
146	#endif
147	#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
148	# define HAS_GETPGRP /* Well, effectively it does . . . */
149	#endif
150
151	/* These are not exact synonyms, since setpgrp() and getpgrp() may
152	have different behaviors, but perl.h used to define USE_BSDPGRP
153	(prior to 5.003_05) so some extension might depend on it.
154	*/
155	#if defined(USE_BSD_SETPGRP) \|\| defined(USE_BSD_GETPGRP)
156	# ifndef USE_BSDPGRP
157	# define USE_BSDPGRP
158	# endif
159	#endif
160
161	#ifndef _TYPES_ /* If types.h defines this it's easy. */
162	# ifndef major /* Does everyone's types.h define this? */
163	# include <sys/types.h>
164	# endif
165	#endif
166
167	#ifdef __cplusplus
168	# ifndef I_STDARG
169	# define I_STDARG 1
170	# endif
171	#endif
172
173	#ifdef I_STDARG
174	# include <stdarg.h>
175	#else
176	# ifdef I_VARARGS
177	# include <varargs.h>
178	# endif
179	#endif
180
181	#include "perlio.h"
182
183	#ifdef USE_NEXT_CTYPE
184
185	#if NX_CURRENT_COMPILER_RELEASE >= 400
186	#include <objc/NXCType.h>
187	#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
188	#include <appkit/NXCType.h>
189	#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
190
191	#else /* !USE_NEXT_CTYPE */
192	#include <ctype.h>
193	#endif /* USE_NEXT_CTYPE */
194
195	#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
196	#undef METHOD
197	#endif
198
199	#ifdef I_LOCALE
200	# include <locale.h>
201	#endif
202
203	#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
204	# define USE_LOCALE
205	# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
206	&& defined(HAS_STRXFRM)
207	# define USE_LOCALE_COLLATE
208	# endif
209	# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
210	# define USE_LOCALE_CTYPE
211	# endif
212	# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
213	# define USE_LOCALE_NUMERIC
214	# endif
215	#endif /* !NO_LOCALE && HAS_SETLOCALE */
216
217	#include <setjmp.h>
218
219	#ifdef I_SYS_PARAM
220	# ifdef PARAM_NEEDS_TYPES
221	# include <sys/types.h>
222	# endif
223	# include <sys/param.h>
224	#endif
225
226
227	/* Use all the "standard" definitions? */
228	#if defined(STANDARD_C) && defined(I_STDLIB)
229	# include <stdlib.h>
230	#endif
231
232	/* This comes after <stdlib.h> so we don't try to change the standard
233	* library prototypes; we'll use our own in proto.h instead. */
234
235	#ifdef MYMALLOC
236
237	# ifdef HIDEMYMALLOC
238	# define malloc Mymalloc
239	# define calloc Mycalloc
240	# define realloc Myremalloc
241	# define free Myfree
242	# endif
243	# ifdef EMBEDMYMALLOC
244	# define malloc Perl_malloc
245	# define calloc Perl_calloc
246	# define realloc Perl_realloc
247	# define free Perl_free
248	# endif
249
250	# undef safemalloc
251	# undef safecalloc
252	# undef saferealloc
253	# undef safefree
254	# define safemalloc malloc
255	# define safecalloc calloc
256	# define saferealloc realloc
257	# define safefree free
258
259	#endif /* MYMALLOC */
260
261	#define MEM_SIZE Size_t
262
263	#if defined(STANDARD_C) && defined(I_STDDEF)
264	# include <stddef.h>
265	# define STRUCT_OFFSET(s,m) offsetof(s,m)
266	#else
267	# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
268	#endif
269
270	#if defined(I_STRING) \|\| defined(__cplusplus)
271	# include <string.h>
272	#else
273	# include <strings.h>
274	#endif
275
276	#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
277	#define strchr index
278	#define strrchr rindex
279	#endif
280
281	#ifdef I_MEMORY
282	# include <memory.h>
283	#endif
284
285	#ifdef HAS_MEMCPY
286	# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
287	# ifndef memcpy
288	extern char * memcpy _((char, char, int));
289	# endif
290	# endif
291	#else
292	# ifndef memcpy
293	# ifdef HAS_BCOPY
294	# define memcpy(d,s,l) bcopy(s,d,l)
295	# else
296	# define memcpy(d,s,l) my_bcopy(s,d,l)
297	# endif
298	# endif
299	#endif /* HAS_MEMCPY */
300
301	#ifdef HAS_MEMSET
302	# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
303	# ifndef memset
304	extern char memset _((char, int, int));
305	# endif
306	# endif
307	#else
308	# define memset(d,c,l) my_memset(d,c,l)
309	#endif /* HAS_MEMSET */
310
311	#if !defined(HAS_MEMMOVE) && !defined(memmove)
312	# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
313	# define memmove(d,s,l) bcopy(s,d,l)
314	# else
315	# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
316	# define memmove(d,s,l) memcpy(d,s,l)
317	# else
318	# define memmove(d,s,l) my_bcopy(s,d,l)
319	# endif
320	# endif
321	#endif
322
323	#if defined(mips) && defined(ultrix) && !defined(__STDC__)
324	# undef HAS_MEMCMP
325	#endif
326
327	#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
328	# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
329	# ifndef memcmp
330	extern int memcmp _((char, char, int));
331	# endif
332	# endif
333	# ifdef BUGGY_MSC
334	# pragma function(memcmp)
335	# endif
336	#else
337	# ifndef memcmp
338	# define memcmp my_memcmp
339	# endif
340	#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
341
342	#ifndef memzero
343	# ifdef HAS_MEMSET
344	# define memzero(d,l) memset(d,0,l)
345	# else
346	# ifdef HAS_BZERO
347	# define memzero(d,l) bzero(d,l)
348	# else
349	# define memzero(d,l) my_bzero(d,l)
350	# endif
351	# endif
352	#endif
353
354	#ifndef HAS_BCMP
355	# ifndef bcmp
356	# define bcmp(s1,s2,l) memcmp(s1,s2,l)
357	# endif
358	#endif /* !HAS_BCMP */
359
360	#ifdef I_NETINET_IN
361	# include <netinet/in.h>
362	#endif
363
364	#if defined(SF_APPEND) && defined(USE_SFIO) && defined(I_SFIO)
365	/* <sfio.h> defines SF_APPEND and <sys/stat.h> might define SF_APPEND
366	* (the neo-BSD seem to do this). */
367	# undef SF_APPEND
368	#endif
369
370	#ifdef I_SYS_STAT
371	# include <sys/stat.h>
372	#endif
373
374	/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
375	like UTekV) are broken, sometimes giving false positives. Undefine
376	them here and let the code below set them to proper values.
377
378	The ghs macro stands for GreenHills Software C-1.8.5 which
379	is the C compiler for sysV88 and the various derivatives.
380	This header file bug is corrected in gcc-2.5.8 and later versions.
381	--Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
382
383	#if defined(uts) \|\| (defined(m88k) && defined(ghs))
384	# undef S_ISDIR
385	# undef S_ISCHR
386	# undef S_ISBLK
387	# undef S_ISREG
388	# undef S_ISFIFO
389	# undef S_ISLNK
390	#endif
391
392	#ifdef I_TIME
393	# include <time.h>
394	#endif
395
396	#ifdef I_SYS_TIME
397	# ifdef I_SYS_TIME_KERNEL
398	# define KERNEL
399	# endif
400	# include <sys/time.h>
401	# ifdef I_SYS_TIME_KERNEL
402	# undef KERNEL
403	# endif
404	#endif
405
406	#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
407	# include <sys/times.h>
408	#endif
409
410	#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) \|\| !defined(HAS_RMDIR))
411	# undef HAS_STRERROR
412	#endif
413
414	#ifndef HAS_MKFIFO
415	# ifndef mkfifo
416	# define mkfifo(path, mode) (mknod((path), (mode) \| S_IFIFO, 0))
417	# endif
418	#endif /* !HAS_MKFIFO */
419
420	#include <errno.h>
421	#ifdef HAS_SOCKET
422	# ifdef I_NET_ERRNO
423	# include <net/errno.h>
424	# endif
425	#endif
426
427	#ifdef VMS
428	# define SETERRNO(errcode,vmserrcode) \
429	STMT_START { \
430	set_errno(errcode); \
431	set_vaxc_errno(vmserrcode); \
432	} STMT_END
433	#else
434	# define SETERRNO(errcode,vmserrcode) errno = (errcode)
435	#endif
436
437	#ifndef errno
438	extern int errno; /* ANSI allows errno to be an lvalue expr */
439	#endif
440
441	#ifdef HAS_STRERROR
442	# ifdef VMS
443	char *strerror _((int,...));
444	# else
445	#ifndef DONT_DECLARE_STD
446	char *strerror _((int));
447	#endif
448	# endif
449	# ifndef Strerror
450	# define Strerror strerror
451	# endif
452	#else
453	# ifdef HAS_SYS_ERRLIST
454	extern int sys_nerr;
455	extern char *sys_errlist[];
456	# ifndef Strerror
457	# define Strerror(e) \
458	((e) < 0 \|\| (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
459	# endif
460	# endif
461	#endif
462
463	#ifdef I_SYS_IOCTL
464	# ifndef _IOCTL_
465	# include <sys/ioctl.h>
466	# endif
467	#endif
468
469	#if defined(mc300) \|\| defined(mc500) \|\| defined(mc700) \|\| defined(mc6000)
470	# ifdef HAS_SOCKETPAIR
471	# undef HAS_SOCKETPAIR
472	# endif
473	# ifdef I_NDBM
474	# undef I_NDBM
475	# endif
476	#endif
477
478	#if INTSIZE == 2
479	# define htoni htons
480	# define ntohi ntohs
481	#else
482	# define htoni htonl
483	# define ntohi ntohl
484	#endif
485
486	/* Configure already sets Direntry_t */
487	#if defined(I_DIRENT)
488	# include <dirent.h>
489	# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
490	# include <sys/dir.h>
491	# endif
492	#else
493	# ifdef I_SYS_NDIR
494	# include <sys/ndir.h>
495	# else
496	# ifdef I_SYS_DIR
497	# ifdef hp9000s500
498	# include <ndir.h> /* may be wrong in the future */
499	# else
500	# include <sys/dir.h>
501	# endif
502	# endif
503	# endif
504	#endif
505
506	#ifdef FPUTS_BOTCH
507	/* work around botch in SunOS 4.0.1 and 4.0.2 */
508	# ifndef fputs
509	# define fputs(sv,fp) fprintf(fp,"%s",sv)
510	# endif
511	#endif
512
513	/*
514	* The following gobbledygook brought to you on behalf of __STDC__.
515	* (I could just use #ifndef __STDC__, but this is more bulletproof
516	* in the face of half-implementations.)
517	*/
518
519	#ifndef S_IFMT
520	# ifdef _S_IFMT
521	# define S_IFMT _S_IFMT
522	# else
523	# define S_IFMT 0170000
524	# endif
525	#endif
526
527	#ifndef S_ISDIR
528	# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
529	#endif
530
531	#ifndef S_ISCHR
532	# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
533	#endif
534
535	#ifndef S_ISBLK
536	# ifdef S_IFBLK
537	# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
538	# else
539	# define S_ISBLK(m) (0)
540	# endif
541	#endif
542
543	#ifndef S_ISREG
544	# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
545	#endif
546
547	#ifndef S_ISFIFO
548	# ifdef S_IFIFO
549	# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
550	# else
551	# define S_ISFIFO(m) (0)
552	# endif
553	#endif
554
555	#ifndef S_ISLNK
556	# ifdef _S_ISLNK
557	# define S_ISLNK(m) _S_ISLNK(m)
558	# else
559	# ifdef _S_IFLNK
560	# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
561	# else
562	# ifdef S_IFLNK
563	# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
564	# else
565	# define S_ISLNK(m) (0)
566	# endif
567	# endif
568	# endif
569	#endif
570
571	#ifndef S_ISSOCK
572	# ifdef _S_ISSOCK
573	# define S_ISSOCK(m) _S_ISSOCK(m)
574	# else
575	# ifdef _S_IFSOCK
576	# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
577	# else
578	# ifdef S_IFSOCK
579	# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
580	# else
581	# define S_ISSOCK(m) (0)
582	# endif
583	# endif
584	# endif
585	#endif
586
587	#ifndef S_IRUSR
588	# ifdef S_IREAD
589	# define S_IRUSR S_IREAD
590	# define S_IWUSR S_IWRITE
591	# define S_IXUSR S_IEXEC
592	# else
593	# define S_IRUSR 0400
594	# define S_IWUSR 0200
595	# define S_IXUSR 0100
596	# endif
597	# define S_IRGRP (S_IRUSR>>3)
598	# define S_IWGRP (S_IWUSR>>3)
599	# define S_IXGRP (S_IXUSR>>3)
600	# define S_IROTH (S_IRUSR>>6)
601	# define S_IWOTH (S_IWUSR>>6)
602	# define S_IXOTH (S_IXUSR>>6)
603	#endif
604
605	#ifndef S_ISUID
606	# define S_ISUID 04000
607	#endif
608
609	#ifndef S_ISGID
610	# define S_ISGID 02000
611	#endif
612
613	#ifdef ff_next
614	# undef ff_next
615	#endif
616
617	#if defined(cray) \|\| defined(gould) \|\| defined(i860) \|\| defined(pyr)
618	# define SLOPPYDIVIDE
619	#endif
620
621	#ifdef UV
622	#undef UV
623	#endif
624
625	/* XXX QUAD stuff is not currently supported on most systems.
626	Specifically, perl internals don't support long long. Among
627	the many problems is that some compilers support long long,
628	but the underlying library functions (such as sprintf) don't.
629	Some things do work (such as quad pack/unpack on convex);
630	also some systems use long long for the fpos_t typedef. That
631	seems to work too.
632
633	The IV type is supposed to be long enough to hold any integral
634	value or a pointer.
635	--Andy Dougherty August 1996
636	*/
637
638	#ifdef cray
639	# define Quad_t int
640	#else
641	# ifdef convex
642	# define Quad_t long long
643	# else
644	# if BYTEORDER > 0xFFFF
645	# define Quad_t long
646	# endif
647	# endif
648	#endif
649
650	#ifdef Quad_t
651	# define HAS_QUAD
652	typedef Quad_t IV;
653	typedef unsigned Quad_t UV;
654	# define IV_MAX PERL_QUAD_MAX
655	# define IV_MIN PERL_QUAD_MIN
656	# define UV_MAX PERL_UQUAD_MAX
657	# define UV_MIN PERL_UQUAD_MIN
658	#else
659	typedef long IV;
660	typedef unsigned long UV;
661	# define IV_MAX PERL_LONG_MAX
662	# define IV_MIN PERL_LONG_MIN
663	# define UV_MAX PERL_ULONG_MAX
664	# define UV_MIN PERL_ULONG_MIN
665	#endif
666
667	/* Previously these definitions used hardcoded figures.
668	* It is hoped these formula are more portable, although
669	* no data one way or another is presently known to me.
670	* The "PERL_" names are used because these calculated constants
671	* do not meet the ANSI requirements for LONG_MAX, etc., which
672	* need to be constants acceptable to #if - kja
673	* define PERL_LONG_MAX 2147483647L
674	* define PERL_LONG_MIN (-LONG_MAX - 1)
675	* define PERL ULONG_MAX 4294967295L
676	*/
677
678	#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
679	# include <limits.h>
680	#else
681	#ifdef I_VALUES
682	# include <values.h>
683	#endif
684	#endif
685
686	/*
687	* Try to figure out max and min values for the integral types. THE CORRECT
688	* SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
689	* following hacks are used if neither limits.h or values.h provide them:
690	* U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
691	* for types < int: (unsigned TYPE)~(unsigned)0
692	* The argument to ~ must be unsigned so that later signed->unsigned
693	* conversion can't modify the value's bit pattern (e.g. -0 -> +0),
694	* and it must not be smaller than int because ~ does integral promotion.
695	* <type>_MAX: (<type>) (U<type>_MAX >> 1)
696	* <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
697	* The latter is a hack which happens to work on some machines but
698	* does not catch any random system, or things like integer types
699	* with NaN if that is possible.
700	*
701	* All of the types are explicitly cast to prevent accidental loss of
702	* numeric range, and in the hope that they will be less likely to confuse
703	* over-eager optimizers.
704	*
705	*/
706
707	#define PERL_UCHAR_MIN ((unsigned char)0)
708
709	#ifdef UCHAR_MAX
710	# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
711	#else
712	# ifdef MAXUCHAR
713	# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
714	# else
715	# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
716	# endif
717	#endif
718
719	/*
720	* CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
721	* ambiguous. It may be equivalent to (signed char) or (unsigned char)
722	* depending on local options. Until Configure detects this (or at least
723	* detects whether the "signed" keyword is available) the CHAR ranges
724	* will not be included. UCHAR functions normally.
725	* - kja
726	*/
727
728	#define PERL_USHORT_MIN ((unsigned short)0)
729
730	#ifdef USHORT_MAX
731	# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
732	#else
733	# ifdef MAXUSHORT
734	# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
735	# else
736	# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
737	# endif
738	#endif
739
740	#ifdef SHORT_MAX
741	# define PERL_SHORT_MAX ((short)SHORT_MAX)
742	#else
743	# ifdef MAXSHORT /* Often used in <values.h> */
744	# define PERL_SHORT_MAX ((short)MAXSHORT)
745	# else
746	# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
747	# endif
748	#endif
749
750	#ifdef SHORT_MIN
751	# define PERL_SHORT_MIN ((short)SHORT_MIN)
752	#else
753	# ifdef MINSHORT
754	# define PERL_SHORT_MIN ((short)MINSHORT)
755	# else
756	# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
757	# endif
758	#endif
759
760	#ifdef UINT_MAX
761	# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
762	#else
763	# ifdef MAXUINT
764	# define PERL_UINT_MAX ((unsigned int)MAXUINT)
765	# else
766	# define PERL_UINT_MAX (~(unsigned int)0)
767	# endif
768	#endif
769
770	#define PERL_UINT_MIN ((unsigned int)0)
771
772	#ifdef INT_MAX
773	# define PERL_INT_MAX ((int)INT_MAX)
774	#else
775	# ifdef MAXINT /* Often used in <values.h> */
776	# define PERL_INT_MAX ((int)MAXINT)
777	# else
778	# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
779	# endif
780	#endif
781
782	#ifdef INT_MIN
783	# define PERL_INT_MIN ((int)INT_MIN)
784	#else
785	# ifdef MININT
786	# define PERL_INT_MIN ((int)MININT)
787	# else
788	# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
789	# endif
790	#endif
791
792	#ifdef ULONG_MAX
793	# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
794	#else
795	# ifdef MAXULONG
796	# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
797	# else
798	# define PERL_ULONG_MAX (~(unsigned long)0)
799	# endif
800	#endif
801
802	#define PERL_ULONG_MIN ((unsigned long)0L)
803
804	#ifdef LONG_MAX
805	# define PERL_LONG_MAX ((long)LONG_MAX)
806	#else
807	# ifdef MAXLONG /* Often used in <values.h> */
808	# define PERL_LONG_MAX ((long)MAXLONG)
809	# else
810	# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
811	# endif
812	#endif
813
814	#ifdef LONG_MIN
815	# define PERL_LONG_MIN ((long)LONG_MIN)
816	#else
817	# ifdef MINLONG
818	# define PERL_LONG_MIN ((long)MINLONG)
819	# else
820	# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
821	# endif
822	#endif
823
824	#ifdef HAS_QUAD
825
826	# ifdef UQUAD_MAX
827	# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
828	# else
829	# define PERL_UQUAD_MAX (~(UV)0)
830	# endif
831
832	# define PERL_UQUAD_MIN ((UV)0)
833
834	# ifdef QUAD_MAX
835	# define PERL_QUAD_MAX ((IV)QUAD_MAX)
836	# else
837	# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
838	# endif
839
840	# ifdef QUAD_MIN
841	# define PERL_QUAD_MIN ((IV)QUAD_MIN)
842	# else
843	# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
844	# endif
845
846	#endif
847
848	typedef MEM_SIZE STRLEN;
849
850	typedef struct op OP;
851	typedef struct cop COP;
852	typedef struct unop UNOP;
853	typedef struct binop BINOP;
854	typedef struct listop LISTOP;
855	typedef struct logop LOGOP;
856	typedef struct condop CONDOP;
857	typedef struct pmop PMOP;
858	typedef struct svop SVOP;
859	typedef struct gvop GVOP;
860	typedef struct pvop PVOP;
861	typedef struct loop LOOP;
862
863	typedef struct Outrec Outrec;
864	typedef struct interpreter PerlInterpreter;
865	#ifndef __BORLANDC__
866	typedef struct ff FF; /* XXX not defined anywhere, should go? */
867	#endif
868	typedef struct sv SV;
869	typedef struct av AV;
870	typedef struct hv HV;
871	typedef struct cv CV;
872	typedef struct regexp REGEXP;
873	typedef struct gp GP;
874	typedef struct gv GV;
875	typedef struct io IO;
876	typedef struct context CONTEXT;
877	typedef struct block BLOCK;
878
879	typedef struct magic MAGIC;
880	typedef struct xrv XRV;
881	typedef struct xpv XPV;
882	typedef struct xpviv XPVIV;
883	typedef struct xpvuv XPVUV;
884	typedef struct xpvnv XPVNV;
885	typedef struct xpvmg XPVMG;
886	typedef struct xpvlv XPVLV;
887	typedef struct xpvav XPVAV;
888	typedef struct xpvhv XPVHV;
889	typedef struct xpvgv XPVGV;
890	typedef struct xpvcv XPVCV;
891	typedef struct xpvbm XPVBM;
892	typedef struct xpvfm XPVFM;
893	typedef struct xpvio XPVIO;
894	typedef struct mgvtbl MGVTBL;
895	typedef union any ANY;
896
897	#include "handy.h"
898
899	typedef I32 (filter_t) _((int, SV , int));
900	#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
901	#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
902	#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
903
904	#ifdef DOSISH
905	# if defined(OS2)
906	# include "os2ish.h"
907	# else
908	# include "dosish.h"
909	# endif
910	#else
911	# if defined(VMS)
912	# include "vmsish.h"
913	# else
914	# if defined(PLAN9)
915	# include "./plan9/plan9ish.h"
916	# else
917	# include "unixish.h"
918	# endif
919	# endif
920	#endif
921
922	#ifdef VMS
923	# define STATUS_NATIVE statusvalue_vms
924	# define STATUS_NATIVE_EXPORT \
925	((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
926	# define STATUS_NATIVE_SET(n) \
927	STMT_START { \
928	statusvalue_vms = (n); \
929	if ((I32)statusvalue_vms == -1) \
930	statusvalue = -1; \
931	else if (statusvalue_vms & STS$M_SUCCESS) \
932	statusvalue = 0; \
933	else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
934	statusvalue = 1 << 8; \
935	else \
936	statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
937	} STMT_END
938	# define STATUS_POSIX statusvalue
939	# ifdef VMSISH_STATUS
940	# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
941	# else
942	# define STATUS_CURRENT STATUS_POSIX
943	# endif
944	# define STATUS_POSIX_SET(n) \
945	STMT_START { \
946	statusvalue = (n); \
947	if (statusvalue != -1) { \
948	statusvalue &= 0xFFFF; \
949	statusvalue_vms = statusvalue ? 44 : 1; \
950	} \
951	else statusvalue_vms = -1; \
952	} STMT_END
953	# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
954	# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
955	#else
956	# define STATUS_NATIVE STATUS_POSIX
957	# define STATUS_NATIVE_EXPORT STATUS_POSIX
958	# define STATUS_NATIVE_SET STATUS_POSIX_SET
959	# define STATUS_POSIX statusvalue
960	# define STATUS_POSIX_SET(n) \
961	STMT_START { \
962	statusvalue = (n); \
963	if (statusvalue != -1) \
964	statusvalue &= 0xFFFF; \
965	} STMT_END
966	# define STATUS_CURRENT STATUS_POSIX
967	# define STATUS_ALL_SUCCESS (statusvalue = 0)
968	# define STATUS_ALL_FAILURE (statusvalue = 1)
969	#endif
970
971	/* Some unistd.h's give a prototype for pause() even though
972	HAS_PAUSE ends up undefined. This causes the #define
973	below to be rejected by the compmiler. Sigh.
974	*/
975	#ifdef HAS_PAUSE
976	#define Pause pause
977	#else
978	#define Pause() sleep((32767<<16)+32767)
979	#endif
980
981	#ifndef IOCPARM_LEN
982	# ifdef IOCPARM_MASK
983	/* on BSDish systes we're safe */
984	# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
985	# else
986	/* otherwise guess at what's safe */
987	# define IOCPARM_LEN(x) 256
988	# endif
989	#endif
990
991	union any {
992	void* any_ptr;
993	I32 any_i32;
994	IV any_iv;
995	long any_long;
996	void (any_dptr) _((void));
997	};
998
999	/* Work around some cygwin32 problems with importing global symbols */
1000	#if defined(CYGWIN32) && defined(DLLIMPORT)
1001	# include "cw32imp.h"
1002	#endif
1003
1004	#include "regexp.h"
1005	#include "sv.h"
1006	#include "util.h"
1007	#include "form.h"
1008	#include "gv.h"
1009	#include "cv.h"
1010	#include "opcode.h"
1011	#include "op.h"
1012	#include "cop.h"
1013	#include "av.h"
1014	#include "hv.h"
1015	#include "mg.h"
1016	#include "scope.h"
1017
1018	/* work around some libPW problems */
1019	#ifdef DOINIT
1020	EXT char Error[1];
1021	#endif
1022
1023	#if defined(iAPX286) \|\| defined(M_I286) \|\| defined(I80286)
1024	# define I286
1025	#endif
1026
1027	#if defined(htonl) && !defined(HAS_HTONL)
1028	#define HAS_HTONL
1029	#endif
1030	#if defined(htons) && !defined(HAS_HTONS)
1031	#define HAS_HTONS
1032	#endif
1033	#if defined(ntohl) && !defined(HAS_NTOHL)
1034	#define HAS_NTOHL
1035	#endif
1036	#if defined(ntohs) && !defined(HAS_NTOHS)
1037	#define HAS_NTOHS
1038	#endif
1039	#ifndef HAS_HTONL
1040	#if (BYTEORDER & 0xffff) != 0x4321
1041	#define HAS_HTONS
1042	#define HAS_HTONL
1043	#define HAS_NTOHS
1044	#define HAS_NTOHL
1045	#define MYSWAP
1046	#define htons my_swap
1047	#define htonl my_htonl
1048	#define ntohs my_swap
1049	#define ntohl my_ntohl
1050	#endif
1051	#else
1052	#if (BYTEORDER & 0xffff) == 0x4321
1053	#undef HAS_HTONS
1054	#undef HAS_HTONL
1055	#undef HAS_NTOHS
1056	#undef HAS_NTOHL
1057	#endif
1058	#endif
1059
1060	/*
1061	* Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1062	* -DWS
1063	*/
1064	#if BYTEORDER != 0x1234
1065	# define HAS_VTOHL
1066	# define HAS_VTOHS
1067	# define HAS_HTOVL
1068	# define HAS_HTOVS
1069	# if BYTEORDER == 0x4321
1070	# define vtohl(x) ((((x)&0xFF)<<24) \
1071	+(((x)>>24)&0xFF) \
1072	+(((x)&0x0000FF00)<<8) \
1073	+(((x)&0x00FF0000)>>8) )
1074	# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1075	# define htovl(x) vtohl(x)
1076	# define htovs(x) vtohs(x)
1077	# endif
1078	/* otherwise default to functions in util.c */
1079	#endif
1080
1081	#ifdef CASTNEGFLOAT
1082	#define U_S(what) ((U16)(what))
1083	#define U_I(what) ((unsigned int)(what))
1084	#define U_L(what) ((U32)(what))
1085	#else
1086	# ifdef __cplusplus
1087	extern "C" {
1088	# endif
1089	U32 cast_ulong _((double));
1090	# ifdef __cplusplus
1091	}
1092	# endif
1093	#define U_S(what) ((U16)cast_ulong((double)(what)))
1094	#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1095	#define U_L(what) (cast_ulong((double)(what)))
1096	#endif
1097
1098	#ifdef CASTI32
1099	#define I_32(what) ((I32)(what))
1100	#define I_V(what) ((IV)(what))
1101	#define U_V(what) ((UV)(what))
1102	#else
1103	# ifdef __cplusplus
1104	extern "C" {
1105	# endif
1106	I32 cast_i32 _((double));
1107	IV cast_iv _((double));
1108	UV cast_uv _((double));
1109	# ifdef __cplusplus
1110	}
1111	# endif
1112	#define I_32(what) (cast_i32((double)(what)))
1113	#define I_V(what) (cast_iv((double)(what)))
1114	#define U_V(what) (cast_uv((double)(what)))
1115	#endif
1116
1117	struct Outrec {
1118	I32 o_lines;
1119	char *o_str;
1120	U32 o_len;
1121	};
1122
1123	#ifndef MAXSYSFD
1124	# define MAXSYSFD 2
1125	#endif
1126
1127	#ifndef TMPPATH
1128	# define TMPPATH "/tmp/perl-eXXXXXX"
1129	#endif
1130
1131	#ifndef __cplusplus
1132	Uid_t getuid _((void));
1133	Uid_t geteuid _((void));
1134	Gid_t getgid _((void));
1135	Gid_t getegid _((void));
1136	#endif
1137
1138	#ifdef DEBUGGING
1139	#ifndef Perl_debug_log
1140	#define Perl_debug_log PerlIO_stderr()
1141	#endif
1142	#define YYDEBUG 1
1143	#define DEB(a) a
1144	#define DEBUG(a) if (debug) a
1145	#define DEBUG_p(a) if (debug & 1) a
1146	#define DEBUG_s(a) if (debug & 2) a
1147	#define DEBUG_l(a) if (debug & 4) a
1148	#define DEBUG_t(a) if (debug & 8) a
1149	#define DEBUG_o(a) if (debug & 16) a
1150	#define DEBUG_c(a) if (debug & 32) a
1151	#define DEBUG_P(a) if (debug & 64) a
1152	#define DEBUG_m(a) if (curinterp && debug & 128) a
1153	#define DEBUG_f(a) if (debug & 256) a
1154	#define DEBUG_r(a) if (debug & 512) a
1155	#define DEBUG_x(a) if (debug & 1024) a
1156	#define DEBUG_u(a) if (debug & 2048) a
1157	#define DEBUG_L(a) if (debug & 4096) a
1158	#define DEBUG_H(a) if (debug & 8192) a
1159	#define DEBUG_X(a) if (debug & 16384) a
1160	#define DEBUG_D(a) if (debug & 32768) a
1161	#else
1162	#define DEB(a)
1163	#define DEBUG(a)
1164	#define DEBUG_p(a)
1165	#define DEBUG_s(a)
1166	#define DEBUG_l(a)
1167	#define DEBUG_t(a)
1168	#define DEBUG_o(a)
1169	#define DEBUG_c(a)
1170	#define DEBUG_P(a)
1171	#define DEBUG_m(a)
1172	#define DEBUG_f(a)
1173	#define DEBUG_r(a)
1174	#define DEBUG_x(a)
1175	#define DEBUG_u(a)
1176	#define DEBUG_L(a)
1177	#define DEBUG_H(a)
1178	#define DEBUG_X(a)
1179	#define DEBUG_D(a)
1180	#endif
1181	#define YYMAXDEPTH 300
1182
1183	#ifndef assert /* <assert.h> might have been included somehow */
1184	#define assert(what) DEB( { \
1185	if (!(what)) { \
1186	croak("Assertion failed: file \"%s\", line %d", \
1187	__FILE__, __LINE__); \
1188	exit(1); \
1189	}})
1190	#endif
1191
1192	struct ufuncs {
1193	I32 (uf_val)_((IV, SV));
1194	I32 (uf_set)_((IV, SV));
1195	IV uf_index;
1196	};
1197
1198	/* Fix these up for __STDC__ */
1199	#ifndef DONT_DECLARE_STD
1200	char mktemp _((char));
1201	double atof _((const char*));
1202	#endif
1203
1204	#ifndef STANDARD_C
1205	/* All of these are in stdlib.h or time.h for ANSI C */
1206	Time_t time();
1207	struct tm gmtime(), localtime();
1208	char strchr(), strrchr();
1209	char strcpy(), strcat();
1210	#endif /* ! STANDARD_C */
1211
1212
1213	#ifdef I_MATH
1214	# include <math.h>
1215	#else
1216	# ifdef __cplusplus
1217	extern "C" {
1218	# endif
1219	double exp _((double));
1220	double log _((double));
1221	double log10 _((double));
1222	double sqrt _((double));
1223	double frexp _((double,int*));
1224	double ldexp _((double,int));
1225	double modf _((double,double*));
1226	double sin _((double));
1227	double cos _((double));
1228	double atan2 _((double,double));
1229	double pow _((double,double));
1230	# ifdef __cplusplus
1231	};
1232	# endif
1233	#endif
1234
1235	#ifndef __cplusplus
1236	#ifdef __NeXT__ /* or whatever catches all NeXTs */
1237	char crypt (); / Maybe more hosts will need the unprototyped version */
1238	#else
1239	char crypt _((const char, const char*));
1240	#endif
1241	#ifndef DONT_DECLARE_STD
1242	#ifndef getenv
1243	char getenv _((const char));
1244	#endif
1245	Off_t lseek _((int,Off_t,int));
1246	#endif
1247	char *getlogin _((void));
1248	#endif
1249
1250	#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
1251	#define UNLINK unlnk
1252	I32 unlnk _((char*));
1253	#else
1254	#define UNLINK unlink
1255	#endif
1256
1257	#ifndef HAS_SETREUID
1258	# ifdef HAS_SETRESUID
1259	# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1260	# define HAS_SETREUID
1261	# endif
1262	#endif
1263	#ifndef HAS_SETREGID
1264	# ifdef HAS_SETRESGID
1265	# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1266	# define HAS_SETREGID
1267	# endif
1268	#endif
1269
1270	typedef Signal_t (*Sighandler_t) _((int));
1271
1272	#ifdef HAS_SIGACTION
1273	typedef struct sigaction Sigsave_t;
1274	#else
1275	typedef Sighandler_t Sigsave_t;
1276	#endif
1277
1278	#define SCAN_DEF 0
1279	#define SCAN_TR 1
1280	#define SCAN_REPL 2
1281
1282	#ifdef DEBUGGING
1283	# ifndef register
1284	# define register
1285	# endif
1286	# define PAD_SV(po) pad_sv(po)
1287	#else
1288	# define PAD_SV(po) curpad[po]
1289	#endif
1290
1291	/****************/
1292	/* Truly global */
1293	/****************/
1294
1295	/* global state */
1296	EXT PerlInterpreter * curinterp; /* currently running interpreter */
1297	/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1298	#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
1299	#ifndef DONT_DECLARE_STD
1300	extern char ** environ; /* environment variables supplied via exec */
1301	#endif
1302	#else
1303	# if defined(NeXT) && defined(__DYNAMIC__)
1304
1305	# include <mach-o/dyld.h>
1306	EXT char *** environ_pointer;
1307	# define environ (*environ_pointer)
1308	# endif
1309	#endif /* environ processing */
1310
1311	EXT int uid; /* current real user id */
1312	EXT int euid; /* current effective user id */
1313	EXT int gid; /* current real group id */
1314	EXT int egid; /* current effective group id */
1315	EXT bool nomemok; /* let malloc context handle nomem */
1316	EXT U32 an; /* malloc sequence number */
1317	EXT U32 cop_seqmax; /* statement sequence number */
1318	EXT U16 op_seqmax; /* op sequence number */
1319	EXT U32 evalseq; /* eval sequence number */
1320	EXT U32 sub_generation; /* inc to force methods to be looked up again */
1321	EXT char ** origenviron;
1322	EXT U32 origalen;
1323	EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
1324	EXT U32 * profiledata;
1325	EXT int maxo INIT(MAXO);/* Number of ops */
1326	EXT char * osname; /* operating system */
1327	EXT char * sh_path INIT(SH_PATH); /* full path of shell */
1328
1329	EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1330	EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
1331	EXT double * xnv_root; /* free xnv list--shared by interpreters */
1332	EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1333	EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
1334	EXT HE * he_root; /* free he list--shared by interpreters */
1335	EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1336	EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
1337
1338	/* Stack for currently executing thread--context switch must handle this. */
1339	EXT SV ** stack_base; /* stack->array_ary */
1340	EXT SV ** stack_sp; /* stack pointer now */
1341	EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1342
1343	/* likewise for these */
1344
1345	EXT OP * op; /* current op--oughta be in a global register */
1346
1347	EXT I32 * scopestack; /* blocks we've entered */
1348	EXT I32 scopestack_ix;
1349	EXT I32 scopestack_max;
1350
1351	EXT ANY* savestack; /* to save non-local values on */
1352	EXT I32 savestack_ix;
1353	EXT I32 savestack_max;
1354
1355	EXT OP ** retstack; /* returns we've pushed */
1356	EXT I32 retstack_ix;
1357	EXT I32 retstack_max;
1358
1359	EXT I32 * markstack; /* stackmarks we're remembering */
1360	EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1361	EXT I32 * markstack_max; /* stackmarks we're remembering */
1362
1363	EXT SV ** curpad;
1364
1365	/* temp space */
1366	EXT SV * Sv;
1367	EXT XPV * Xpv;
1368	EXT char tokenbuf[256];
1369	EXT struct stat statbuf;
1370	#ifdef HAS_TIMES
1371	EXT struct tms timesbuf;
1372	#endif
1373	EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
1374
1375	/* for tmp use in stupid debuggers */
1376	EXT int * di;
1377	EXT short * ds;
1378	EXT char * dc;
1379
1380	/* handy constants */
1381	EXTCONST char * Yes INIT("1");
1382	EXTCONST char * No INIT("");
1383	EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1384	EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?\|()-nrtfeaxc0123456789[{]}");
1385	EXTCONST char * vert INIT("\|");
1386
1387	EXTCONST char warn_uninit[]
1388	INIT("Use of uninitialized value");
1389	EXTCONST char warn_nosemi[]
1390	INIT("Semicolon seems to be missing");
1391	EXTCONST char warn_reserved[]
1392	INIT("Unquoted string \"%s\" may clash with future reserved word");
1393	EXTCONST char warn_nl[]
1394	INIT("Unsuccessful %s on filename containing newline");
1395	EXTCONST char no_wrongref[]
1396	INIT("Can't use %s ref as %s ref");
1397	EXTCONST char no_symref[]
1398	INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
1399	EXTCONST char no_usym[]
1400	INIT("Can't use an undefined value as %s reference");
1401	EXTCONST char no_aelem[]
1402	INIT("Modification of non-creatable array value attempted, subscript %d");
1403	EXTCONST char no_helem[]
1404	INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
1405	EXTCONST char no_modify[]
1406	INIT("Modification of a read-only value attempted");
1407	EXTCONST char no_mem[]
1408	INIT("Out of memory!\n");
1409	EXTCONST char no_security[]
1410	INIT("Insecure dependency in %s%s");
1411	EXTCONST char no_sock_func[]
1412	INIT("Unsupported socket function \"%s\" called");
1413	EXTCONST char no_dir_func[]
1414	INIT("Unsupported directory function \"%s\" called");
1415	EXTCONST char no_func[]
1416	INIT("The %s function is unimplemented");
1417	EXTCONST char no_myglob[]
1418	INIT("\"my\" variable %s can't be in a package");
1419
1420	EXT SV sv_undef;
1421	EXT SV sv_no;
1422	EXT SV sv_yes;
1423	#ifdef CSH
1424	EXT char * cshname INIT(CSH);
1425	EXT I32 cshlen;
1426	#endif
1427
1428	#ifdef DOINIT
1429	EXT char *sig_name[] = { SIG_NAME };
1430	EXT int sig_num[] = { SIG_NUM };
1431	EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1432	EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
1433	#else
1434	EXT char *sig_name[];
1435	EXT int sig_num[];
1436	EXT SV * psig_ptr[];
1437	EXT SV * psig_name[];
1438	#endif
1439
1440	/* fast case folding tables */
1441
1442	#ifdef DOINIT
1443	EXTCONST unsigned char fold[] = {
1444	0, 1, 2, 3, 4, 5, 6, 7,
1445	8, 9, 10, 11, 12, 13, 14, 15,
1446	16, 17, 18, 19, 20, 21, 22, 23,
1447	24, 25, 26, 27, 28, 29, 30, 31,
1448	32, 33, 34, 35, 36, 37, 38, 39,
1449	40, 41, 42, 43, 44, 45, 46, 47,
1450	48, 49, 50, 51, 52, 53, 54, 55,
1451	56, 57, 58, 59, 60, 61, 62, 63,
1452	64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1453	'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1454	'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1455	'x', 'y', 'z', 91, 92, 93, 94, 95,
1456	96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1457	'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1458	'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1459	'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1460	128, 129, 130, 131, 132, 133, 134, 135,
1461	136, 137, 138, 139, 140, 141, 142, 143,
1462	144, 145, 146, 147, 148, 149, 150, 151,
1463	152, 153, 154, 155, 156, 157, 158, 159,
1464	160, 161, 162, 163, 164, 165, 166, 167,
1465	168, 169, 170, 171, 172, 173, 174, 175,
1466	176, 177, 178, 179, 180, 181, 182, 183,
1467	184, 185, 186, 187, 188, 189, 190, 191,
1468	192, 193, 194, 195, 196, 197, 198, 199,
1469	200, 201, 202, 203, 204, 205, 206, 207,
1470	208, 209, 210, 211, 212, 213, 214, 215,
1471	216, 217, 218, 219, 220, 221, 222, 223,
1472	224, 225, 226, 227, 228, 229, 230, 231,
1473	232, 233, 234, 235, 236, 237, 238, 239,
1474	240, 241, 242, 243, 244, 245, 246, 247,
1475	248, 249, 250, 251, 252, 253, 254, 255
1476	};
1477	#else
1478	EXTCONST unsigned char fold[];
1479	#endif
1480
1481	#ifdef DOINIT
1482	EXT unsigned char fold_locale[] = {
1483	0, 1, 2, 3, 4, 5, 6, 7,
1484	8, 9, 10, 11, 12, 13, 14, 15,
1485	16, 17, 18, 19, 20, 21, 22, 23,
1486	24, 25, 26, 27, 28, 29, 30, 31,
1487	32, 33, 34, 35, 36, 37, 38, 39,
1488	40, 41, 42, 43, 44, 45, 46, 47,
1489	48, 49, 50, 51, 52, 53, 54, 55,
1490	56, 57, 58, 59, 60, 61, 62, 63,
1491	64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1492	'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1493	'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1494	'x', 'y', 'z', 91, 92, 93, 94, 95,
1495	96, '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', 123, 124, 125, 126, 127,
1499	128, 129, 130, 131, 132, 133, 134, 135,
1500	136, 137, 138, 139, 140, 141, 142, 143,
1501	144, 145, 146, 147, 148, 149, 150, 151,
1502	152, 153, 154, 155, 156, 157, 158, 159,
1503	160, 161, 162, 163, 164, 165, 166, 167,
1504	168, 169, 170, 171, 172, 173, 174, 175,
1505	176, 177, 178, 179, 180, 181, 182, 183,
1506	184, 185, 186, 187, 188, 189, 190, 191,
1507	192, 193, 194, 195, 196, 197, 198, 199,
1508	200, 201, 202, 203, 204, 205, 206, 207,
1509	208, 209, 210, 211, 212, 213, 214, 215,
1510	216, 217, 218, 219, 220, 221, 222, 223,
1511	224, 225, 226, 227, 228, 229, 230, 231,
1512	232, 233, 234, 235, 236, 237, 238, 239,
1513	240, 241, 242, 243, 244, 245, 246, 247,
1514	248, 249, 250, 251, 252, 253, 254, 255
1515	};
1516	#else
1517	EXT unsigned char fold_locale[];
1518	#endif
1519
1520	#ifdef DOINIT
1521	EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
1522	1, 2, 84, 151, 154, 155, 156, 157,
1523	165, 246, 250, 3, 158, 7, 18, 29,
1524	40, 51, 62, 73, 85, 96, 107, 118,
1525	129, 140, 147, 148, 149, 150, 152, 153,
1526	255, 182, 224, 205, 174, 176, 180, 217,
1527	233, 232, 236, 187, 235, 228, 234, 226,
1528	222, 219, 211, 195, 188, 193, 185, 184,
1529	191, 183, 201, 229, 181, 220, 194, 162,
1530	163, 208, 186, 202, 200, 218, 198, 179,
1531	178, 214, 166, 170, 207, 199, 209, 206,
1532	204, 160, 212, 216, 215, 192, 175, 173,
1533	243, 172, 161, 190, 203, 189, 164, 230,
1534	167, 248, 227, 244, 242, 255, 241, 231,
1535	240, 253, 169, 210, 245, 237, 249, 247,
1536	239, 168, 252, 251, 254, 238, 223, 221,
1537	213, 225, 177, 197, 171, 196, 159, 4,
1538	5, 6, 8, 9, 10, 11, 12, 13,
1539	14, 15, 16, 17, 19, 20, 21, 22,
1540	23, 24, 25, 26, 27, 28, 30, 31,
1541	32, 33, 34, 35, 36, 37, 38, 39,
1542	41, 42, 43, 44, 45, 46, 47, 48,
1543	49, 50, 52, 53, 54, 55, 56, 57,
1544	58, 59, 60, 61, 63, 64, 65, 66,
1545	67, 68, 69, 70, 71, 72, 74, 75,
1546	76, 77, 78, 79, 80, 81, 82, 83,
1547	86, 87, 88, 89, 90, 91, 92, 93,
1548	94, 95, 97, 98, 99, 100, 101, 102,
1549	103, 104, 105, 106, 108, 109, 110, 111,
1550	112, 113, 114, 115, 116, 117, 119, 120,
1551	121, 122, 123, 124, 125, 126, 127, 128,
1552	130, 131, 132, 133, 134, 135, 136, 137,
1553	138, 139, 141, 142, 143, 144, 145, 146
1554	};
1555	#else
1556	EXTCONST unsigned char freq[];
1557	#endif
1558
1559	#ifdef DEBUGGING
1560	#ifdef DOINIT
1561	EXTCONST char* block_type[] = {
1562	"NULL",
1563	"SUB",
1564	"EVAL",
1565	"LOOP",
1566	"SUBST",
1567	"BLOCK",
1568	};
1569	#else
1570	EXTCONST char* block_type[];
1571	#endif
1572	#endif
1573
1574	/*****************************************************************************/
1575	/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1576	/*****************************************************************************/
1577	/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1578
1579	#include "perly.h"
1580
1581	#define LEX_NOTPARSING 11 /* borrowed from toke.c */
1582
1583	typedef enum {
1584	XOPERATOR,
1585	XTERM,
1586	XREF,
1587	XSTATE,
1588	XBLOCK,
1589	XTERMBLOCK
1590	} expectation;
1591
1592	EXT U32 lex_state; /* next token is determined */
1593	EXT U32 lex_defer; /* state after determined token */
1594	EXT expectation lex_expect; /* expect after determined token */
1595	EXT I32 lex_brackets; /* bracket count */
1596	EXT I32 lex_formbrack; /* bracket count at outer format level */
1597	EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1598	EXT I32 lex_casemods; /* casemod count */
1599	EXT I32 lex_dojoin; /* doing an array interpolation */
1600	EXT I32 lex_starts; /* how many interps done on level */
1601	EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1602	EXT SV * lex_repl; /* runtime replacement from s/// */
1603	EXT OP * lex_op; /* extra info to pass back on op */
1604	EXT OP * lex_inpat; /* in pattern $) and $\| are special */
1605	EXT I32 lex_inwhat; /* what kind of quoting are we in */
1606	EXT char * lex_brackstack; /* what kind of brackets to pop */
1607	EXT char * lex_casestack; /* what kind of case mods in effect */
1608
1609	/* What we know when we're in LEX_KNOWNEXT state. */
1610	EXT YYSTYPE nextval[5]; /* value of next token, if any */
1611	EXT I32 nexttype[5]; /* type of next token */
1612	EXT I32 nexttoke;
1613
1614	EXT PerlIO * VOL rsfp INIT(Nullfp);
1615	EXT SV * linestr;
1616	EXT char * bufptr;
1617	EXT char * oldbufptr;
1618	EXT char * oldoldbufptr;
1619	EXT char * bufend;
1620	EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1621	EXT AV * rsfp_filters;
1622
1623	EXT I32 multi_start; /* 1st line of multi-line string */
1624	EXT I32 multi_end; /* last line of multi-line string */
1625	EXT I32 multi_open; /* delimiter of said string */
1626	EXT I32 multi_close; /* delimiter of said string */
1627
1628	EXT GV * scrgv;
1629	EXT I32 error_count; /* how many errors so far, max 10 */
1630	EXT I32 subline; /* line this subroutine began on */
1631	EXT SV * subname; /* name of current subroutine */
1632
1633	EXT CV * compcv; /* currently compiling subroutine */
1634	EXT AV * comppad; /* storage for lexically scoped temporaries */
1635	EXT AV * comppad_name; /* variable names for "my" variables */
1636	EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1637	EXT I32 comppad_name_floor;/* start of vars in innermost block */
1638	EXT I32 min_intro_pending;/* start of vars to introduce */
1639	EXT I32 max_intro_pending;/* end of vars to introduce */
1640	EXT I32 padix; /* max used index in current "register" pad */
1641	EXT I32 padix_floor; /* how low may inner block reset padix */
1642	EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1643	EXT COP compiling;
1644
1645	EXT I32 thisexpr; /* name id for nothing_in_common() */
1646	EXT char * last_uni; /* position of last named-unary operator */
1647	EXT char * last_lop; /* position of last list operator */
1648	EXT OPCODE last_lop_op; /* last list operator */
1649	EXT bool in_my; /* we're compiling a "my" declaration */
1650	#ifdef FCRYPT
1651	EXT I32 cryptseen; /* has fast crypt() been initialized? */
1652	#endif
1653
1654	EXT U32 hints; /* various compilation flags */
1655
1656	/* Note: the lowest 8 bits are reserved for
1657	stuffing into op->op_private */
1658	#define HINT_INTEGER 0x00000001
1659	#define HINT_STRICT_REFS 0x00000002
1660
1661	#define HINT_BLOCK_SCOPE 0x00000100
1662	#define HINT_STRICT_SUBS 0x00000200
1663	#define HINT_STRICT_VARS 0x00000400
1664	#define HINT_LOCALE 0x00000800
1665
1666	/**************************************************************************/
1667	/* This regexp stuff is global since it always happens within 1 expr eval */
1668	/**************************************************************************/
1669
1670	EXT char * regprecomp; /* uncompiled string. */
1671	EXT char * regparse; /* Input-scan pointer. */
1672	EXT char * regxend; /* End of input for compile */
1673	EXT I32 regnpar; /* () count. */
1674	EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1675	EXT I32 regsize; /* Code size. */
1676	EXT I32 regnaughty; /* How bad is this pattern? */
1677	EXT I32 regsawback; /* Did we see \1, ...? */
1678
1679	EXT char * reginput; /* String-input pointer. */
1680	EXT char * regbol; /* Beginning of input, for ^ check. */
1681	EXT char * regeol; /* End of input, for $ check. */
1682	EXT char ** regstartp; /* Pointer to startp array. */
1683	EXT char ** regendp; /* Ditto for endp. */
1684	EXT U32 * reglastparen; /* Similarly for lastparen. */
1685	EXT char * regtill; /* How far we are required to go. */
1686	EXT U16 regflags; /* are we folding, multilining? */
1687	EXT char regprev; /* char before regbol, \n if none */
1688
1689	EXT bool do_undump; /* -u or dump seen? */
1690	EXT VOL U32 debug;
1691
1692	/***********************************************/
1693	/* Global only to current interpreter instance */
1694	/***********************************************/
1695
1696	#ifdef MULTIPLICITY
1697	#define IEXT
1698	#define IINIT(x)
1699	struct interpreter {
1700	#else
1701	#define IEXT EXT
1702	#define IINIT(x) INIT(x)
1703	#endif
1704
1705	/* pseudo environmental stuff */
1706	IEXT int Iorigargc;
1707	IEXT char ** Iorigargv;
1708	IEXT GV * Ienvgv;
1709	IEXT GV * Isiggv;
1710	IEXT GV * Iincgv;
1711	IEXT char * Iorigfilename;
1712	IEXT SV * Idiehook;
1713	IEXT SV * Iwarnhook;
1714	IEXT SV * Iparsehook;
1715
1716	/* Various states of an input record separator SV (rs, nrs) */
1717	#define RsSNARF(sv) (! SvOK(sv))
1718	#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1719	#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1720
1721	/* switches */
1722	IEXT char * Icddir;
1723	IEXT bool Iminus_c;
1724	IEXT char Ipatchlevel[10];
1725	IEXT char ** Ilocalpatches;
1726	IEXT SV * Inrs;
1727	IEXT char * Isplitstr IINIT(" ");
1728	IEXT bool Ipreprocess;
1729	IEXT bool Iminus_n;
1730	IEXT bool Iminus_p;
1731	IEXT bool Iminus_l;
1732	IEXT bool Iminus_a;
1733	IEXT bool Iminus_F;
1734	IEXT bool Idoswitches;
1735	IEXT bool Idowarn;
1736	IEXT bool Idoextract;
1737	IEXT bool Isawampersand; /* must save all match strings */
1738	IEXT bool Isawstudy; /* do fbm_instr on all strings */
1739	IEXT bool Isawvec;
1740	IEXT bool Iunsafe;
1741	IEXT char * Iinplace;
1742	IEXT char * Ie_tmpname;
1743	IEXT PerlIO * Ie_fp;
1744	IEXT U32 Iperldb;
1745	/* This value may be raised by extensions for testing purposes */
1746	IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
1747
1748	/* magical thingies */
1749	IEXT Time_t Ibasetime; /* $^T */
1750	IEXT SV * Iformfeed; /* $^L */
1751	IEXT char * Ichopset IINIT(" \n-"); /* $: */
1752	IEXT SV * Irs; /* $/ */
1753	IEXT char * Iofs; /* $, */
1754	IEXT STRLEN Iofslen;
1755	IEXT char * Iors; /* $\ */
1756	IEXT STRLEN Iorslen;
1757	IEXT char * Iofmt; /* $# */
1758	IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1759	IEXT int Imultiline; /* $--do strings hold >1 line? /
1760	IEXT I32 Istatusvalue; /* $? */
1761	#ifdef VMS
1762	IEXT U32 Istatusvalue_vms;
1763	#endif
1764
1765	IEXT struct stat Istatcache; /* _ */
1766	IEXT GV * Istatgv;
1767	IEXT SV * Istatname IINIT(Nullsv);
1768
1769	/* shortcuts to various I/O objects */
1770	IEXT GV * Istdingv;
1771	IEXT GV * Ilast_in_gv;
1772	IEXT GV * Idefgv;
1773	IEXT GV * Iargvgv;
1774	IEXT GV * Idefoutgv;
1775	IEXT GV * Iargvoutgv;
1776
1777	/* shortcuts to regexp stuff */
1778	IEXT GV * Ileftgv;
1779	IEXT GV * Iampergv;
1780	IEXT GV * Irightgv;
1781	IEXT PMOP * Icurpm; /* what to do \ interps from */
1782	IEXT I32 * Iscreamfirst;
1783	IEXT I32 * Iscreamnext;
1784	IEXT I32 Imaxscream IINIT(-1);
1785	IEXT SV * Ilastscream;
1786
1787	/* shortcuts to misc objects */
1788	IEXT GV * Ierrgv;
1789
1790	/* shortcuts to debugging objects */
1791	IEXT GV * IDBgv;
1792	IEXT GV * IDBline;
1793	IEXT GV * IDBsub;
1794	IEXT SV * IDBsingle;
1795	IEXT SV * IDBtrace;
1796	IEXT SV * IDBsignal;
1797	IEXT AV * Ilineary; /* lines of script for debugger */
1798	IEXT AV * Idbargs; /* args to call listed by caller function */
1799
1800	/* symbol tables */
1801	IEXT HV * Idefstash; /* main symbol table */
1802	IEXT HV * Icurstash; /* symbol table for current package */
1803	IEXT HV * Idebstash; /* symbol table for perldb package */
1804	IEXT SV * Icurstname; /* name of current package */
1805	IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1806	IEXT AV * Iendav; /* names of END subroutines */
1807	IEXT HV * Istrtab; /* shared string table */
1808
1809	/* memory management */
1810	IEXT SV ** Itmps_stack;
1811	IEXT I32 Itmps_ix IINIT(-1);
1812	IEXT I32 Itmps_floor IINIT(-1);
1813	IEXT I32 Itmps_max;
1814	IEXT I32 Isv_count; /* how many SV* are currently allocated */
1815	IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1816	IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1817	IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1818
1819	/* funky return mechanisms */
1820	IEXT I32 Ilastspbase;
1821	IEXT I32 Ilastsize;
1822	IEXT int Iforkprocess; /* so do_open \|- can return proc# */
1823
1824	/* subprocess state */
1825	IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1826
1827	/* internal state */
1828	IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1829	IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1830	IEXT int Idelaymagic; /* ($<,$>) = ... */
1831	IEXT bool Idirty; /* In the middle of tearing things down? */
1832	IEXT U8 Ilocalizing; /* are we processing a local() list? */
1833	IEXT bool Itainted; /* using variables controlled by $< */
1834	IEXT bool Itainting; /* doing taint checks */
1835	IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1836
1837	/* trace state */
1838	IEXT I32 Idlevel;
1839	IEXT I32 Idlmax IINIT(128);
1840	IEXT char * Idebname;
1841	IEXT char * Idebdelim;
1842
1843	/* current interpreter roots */
1844	IEXT CV * Imain_cv;
1845	IEXT OP * Imain_root;
1846	IEXT OP * Imain_start;
1847	IEXT OP * Ieval_root;
1848	IEXT OP * Ieval_start;
1849
1850	/* runtime control stuff */
1851	IEXT COP * VOL Icurcop IINIT(&compiling);
1852	IEXT COP * Icurcopdb IINIT(NULL);
1853	IEXT line_t Icopline IINIT(NOLINE);
1854	IEXT CONTEXT * Icxstack;
1855	IEXT I32 Icxstack_ix IINIT(-1);
1856	IEXT I32 Icxstack_max IINIT(128);
1857	IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1858	IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
1859	IEXT I32 Irunlevel;
1860
1861	/* stack stuff */
1862	IEXT AV * Icurstack; /* THE STACK */
1863	IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1864	IEXT SV ** Imystack_base; /* stack->array_ary */
1865	IEXT SV ** Imystack_sp; /* stack pointer now */
1866	IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1867
1868	/* format accumulators */
1869	IEXT SV * Iformtarget;
1870	IEXT SV * Ibodytarget;
1871	IEXT SV * Itoptarget;
1872
1873	/* statics moved here for shared library purposes */
1874	IEXT SV Istrchop; /* return value from chop */
1875	IEXT int Ifilemode; /* so nextargv() can preserve mode */
1876	IEXT int Ilastfd; /* what to preserve mode on */
1877	IEXT char * Ioldname; /* what to preserve mode on */
1878	IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1879	IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1880	IEXT OP * Isortcop; /* user defined sort routine */
1881	IEXT HV * Isortstash; /* which is in some package or other */
1882	IEXT GV * Ifirstgv; /* $a */
1883	IEXT GV * Isecondgv; /* $b */
1884	IEXT AV * Isortstack; /* temp stack during pp_sort() */
1885	IEXT AV * Isignalstack; /* temp stack during sighandler() */
1886	IEXT SV * Imystrk; /* temp key string for do_each() */
1887	IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1888	IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1889	IEXT I32 Igensym; /* next symbol for getsym() to define */
1890	IEXT bool Ipreambled;
1891	IEXT AV * Ipreambleav;
1892	IEXT int Ilaststatval IINIT(-1);
1893	IEXT I32 Ilaststype IINIT(OP_STAT);
1894	IEXT SV * Imess_sv;
1895
1896	#undef IEXT
1897	#undef IINIT
1898
1899	#ifdef MULTIPLICITY
1900	};
1901	#else
1902	struct interpreter {
1903	char broiled;
1904	};
1905	#endif
1906
1907	#include "pp.h"
1908
1909	#ifdef __cplusplus
1910	extern "C" {
1911	#endif
1912
1913	#include "proto.h"
1914
1915	#ifdef EMBED
1916	#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1917	#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1918	#else
1919	#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1920	#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1921	#endif
1922
1923	#ifdef __cplusplus
1924	};
1925	#endif
1926
1927	/* The following must follow proto.h */
1928
1929	#ifdef DOINIT
1930
1931	EXT MGVTBL vtbl_sv = {magic_get,
1932	magic_set,
1933	magic_len,
1934	0, 0};
1935	EXT MGVTBL vtbl_env = {0, magic_set_all_env,
1936	0, magic_clear_all_env,
1937	0};
1938	EXT MGVTBL vtbl_envelem = {0, magic_setenv,
1939	0, magic_clearenv,
1940	0};
1941	EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1942	EXT MGVTBL vtbl_sigelem = {magic_getsig,
1943	magic_setsig,
1944	0, magic_clearsig,
1945	0};
1946	EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1947	0};
1948	EXT MGVTBL vtbl_packelem = {magic_getpack,
1949	magic_setpack,
1950	0, magic_clearpack,
1951	0};
1952	EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
1953	0, 0, 0};
1954	EXT MGVTBL vtbl_isa = {0, magic_setisa,
1955	0, magic_setisa,
1956	0};
1957	EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
1958	0, 0, 0};
1959	EXT MGVTBL vtbl_arylen = {magic_getarylen,
1960	magic_setarylen,
1961	0, 0, 0};
1962	EXT MGVTBL vtbl_glob = {magic_getglob,
1963	magic_setglob,
1964	0, 0, 0};
1965	EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
1966	0, 0, 0};
1967	EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1968	0, 0, 0};
1969	EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1970	0, 0, 0};
1971	EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
1972	0, 0, 0};
1973	EXT MGVTBL vtbl_vec = {0, magic_setvec,
1974	0, 0, 0};
1975	EXT MGVTBL vtbl_pos = {magic_getpos,
1976	magic_setpos,
1977	0, 0, 0};
1978	EXT MGVTBL vtbl_bm = {0, magic_setbm,
1979	0, 0, 0};
1980	EXT MGVTBL vtbl_fm = {0, magic_setfm,
1981	0, 0, 0};
1982	EXT MGVTBL vtbl_uvar = {magic_getuvar,
1983	magic_setuvar,
1984	0, 0, 0};
1985	EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
1986	0, 0, magic_freedefelem};
1987
1988	#ifdef USE_LOCALE_COLLATE
1989	EXT MGVTBL vtbl_collxfrm = {0,
1990	magic_setcollxfrm,
1991	0, 0, 0};
1992	#endif
1993
1994	#ifdef OVERLOAD
1995	EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
1996	0, 0, magic_setamagic};
1997	EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1998	0, 0, magic_setamagic};
1999	#endif /* OVERLOAD */
2000
2001	#else /* !DOINIT */
2002
2003	EXT MGVTBL vtbl_sv;
2004	EXT MGVTBL vtbl_env;
2005	EXT MGVTBL vtbl_envelem;
2006	EXT MGVTBL vtbl_sig;
2007	EXT MGVTBL vtbl_sigelem;
2008	EXT MGVTBL vtbl_pack;
2009	EXT MGVTBL vtbl_packelem;
2010	EXT MGVTBL vtbl_dbline;
2011	EXT MGVTBL vtbl_isa;
2012	EXT MGVTBL vtbl_isaelem;
2013	EXT MGVTBL vtbl_arylen;
2014	EXT MGVTBL vtbl_glob;
2015	EXT MGVTBL vtbl_mglob;
2016	EXT MGVTBL vtbl_nkeys;
2017	EXT MGVTBL vtbl_taint;
2018	EXT MGVTBL vtbl_substr;
2019	EXT MGVTBL vtbl_vec;
2020	EXT MGVTBL vtbl_pos;
2021	EXT MGVTBL vtbl_bm;
2022	EXT MGVTBL vtbl_fm;
2023	EXT MGVTBL vtbl_uvar;
2024	EXT MGVTBL vtbl_defelem;
2025
2026	#ifdef USE_LOCALE_COLLATE
2027	EXT MGVTBL vtbl_collxfrm;
2028	#endif
2029
2030	#ifdef OVERLOAD
2031	EXT MGVTBL vtbl_amagic;
2032	EXT MGVTBL vtbl_amagicelem;
2033	#endif /* OVERLOAD */
2034
2035	#endif /* !DOINIT */
2036
2037	#ifdef OVERLOAD
2038
2039	EXT long amagic_generation;
2040
2041	#define NofAMmeth 58
2042	#ifdef DOINIT
2043	EXTCONST char * AMG_names[NofAMmeth] = {
2044	"fallback", "abs", /* "fallback" should be the first. */
2045	"bool", "nomethod",
2046	"\"\"", "0+",
2047	"+", "+=",
2048	"-", "-=",
2049	"", "=",
2050	"/", "/=",
2051	"%", "%=",
2052	"", "=",
2053	"<<", "<<=",
2054	">>", ">>=",
2055	"&", "&=",
2056	"\|", "\|=",
2057	"^", "^=",
2058	"<", "<=",
2059	">", ">=",
2060	"==", "!=",
2061	"<=>", "cmp",
2062	"lt", "le",
2063	"gt", "ge",
2064	"eq", "ne",
2065	"!", "~",
2066	"++", "--",
2067	"atan2", "cos",
2068	"sin", "exp",
2069	"log", "sqrt",
2070	"x", "x=",
2071	".", ".=",
2072	"=", "neg"
2073	};
2074	#else
2075	EXTCONST char * AMG_names[NofAMmeth];
2076	#endif /* def INITAMAGIC */
2077
2078	struct am_table {
2079	long was_ok_sub;
2080	long was_ok_am;
2081	U32 flags;
2082	CV* table[NofAMmeth];
2083	long fallback;
2084	};
2085	struct am_table_short {
2086	long was_ok_sub;
2087	long was_ok_am;
2088	U32 flags;
2089	};
2090	typedef struct am_table AMT;
2091	typedef struct am_table_short AMTS;
2092
2093	#define AMGfallNEVER 1
2094	#define AMGfallNO 2
2095	#define AMGfallYES 3
2096
2097	#define AMTf_AMAGIC 1
2098	#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2099	#define AMT_AMAGIC_on(amt) ((amt)->flags \|= AMTf_AMAGIC)
2100	#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2101
2102	enum {
2103	fallback_amg, abs_amg,
2104	bool__amg, nomethod_amg,
2105	string_amg, numer_amg,
2106	add_amg, add_ass_amg,
2107	subtr_amg, subtr_ass_amg,
2108	mult_amg, mult_ass_amg,
2109	div_amg, div_ass_amg,
2110	mod_amg, mod_ass_amg,
2111	pow_amg, pow_ass_amg,
2112	lshift_amg, lshift_ass_amg,
2113	rshift_amg, rshift_ass_amg,
2114	band_amg, band_ass_amg,
2115	bor_amg, bor_ass_amg,
2116	bxor_amg, bxor_ass_amg,
2117	lt_amg, le_amg,
2118	gt_amg, ge_amg,
2119	eq_amg, ne_amg,
2120	ncmp_amg, scmp_amg,
2121	slt_amg, sle_amg,
2122	sgt_amg, sge_amg,
2123	seq_amg, sne_amg,
2124	not_amg, compl_amg,
2125	inc_amg, dec_amg,
2126	atan2_amg, cos_amg,
2127	sin_amg, exp_amg,
2128	log_amg, sqrt_amg,
2129	repeat_amg, repeat_ass_amg,
2130	concat_amg, concat_ass_amg,
2131	copy_amg, neg_amg
2132	};
2133
2134	/*
2135	* some compilers like to redefine cos et alia as faster
2136	* (and less accurate?) versions called F_cos et cetera (Quidquid
2137	* latine dictum sit, altum viditur.) This trick collides with
2138	* the Perl overloading (amg). The following #defines fool both.
2139	*/
2140
2141	#ifdef _FASTMATH
2142	# ifdef atan2
2143	# define F_atan2_amg atan2_amg
2144	# endif
2145	# ifdef cos
2146	# define F_cos_amg cos_amg
2147	# endif
2148	# ifdef exp
2149	# define F_exp_amg exp_amg
2150	# endif
2151	# ifdef log
2152	# define F_log_amg log_amg
2153	# endif
2154	# ifdef pow
2155	# define F_pow_amg pow_amg
2156	# endif
2157	# ifdef sin
2158	# define F_sin_amg sin_amg
2159	# endif
2160	# ifdef sqrt
2161	# define F_sqrt_amg sqrt_amg
2162	# endif
2163	#endif /* _FASTMATH */
2164
2165	#endif /* OVERLOAD */
2166
2167	#define PERLDB_ALL 0xff
2168	#define PERLDBf_SUB 0x01 /* Debug sub enter/exit. */
2169	#define PERLDBf_LINE 0x02 /* Keep line #. */
2170	#define PERLDBf_NOOPT 0x04 /* Switch off optimizations. */
2171	#define PERLDBf_INTER 0x08 /* Preserve more data for
2172	later inspections. */
2173	#define PERLDBf_SUBLINE 0x10 /* Keep subr source lines. */
2174	#define PERLDBf_SINGLE 0x20 /* Start with single-step on. */
2175
2176	#define PERLDB_SUB (perldb && (perldb & PERLDBf_SUB))
2177	#define PERLDB_LINE (perldb && (perldb & PERLDBf_LINE))
2178	#define PERLDB_NOOPT (perldb && (perldb & PERLDBf_NOOPT))
2179	#define PERLDB_INTER (perldb && (perldb & PERLDBf_INTER))
2180	#define PERLDB_SUBLINE (perldb && (perldb & PERLDBf_SUBLINE))
2181	#define PERLDB_SINGLE (perldb && (perldb & PERLDBf_SINGLE))
2182
2183	#ifdef USE_LOCALE_COLLATE
2184	EXT U32 collation_ix; /* Collation generation index */
2185	EXT char * collation_name; /* Name of current collation */
2186	EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2187	EXT Size_t collxfrm_base; /* Basic overhead in xfrm() /
2188	EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in xfrm() /
2189	#endif /* USE_LOCALE_COLLATE */
2190
2191	#ifdef USE_LOCALE_NUMERIC
2192
2193	EXT char * numeric_name; /* Name of current numeric locale */
2194	EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2195	EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2196
2197	#define SET_NUMERIC_STANDARD() \
2198	STMT_START { \
2199	if (! numeric_standard) \
2200	perl_set_numeric_standard(); \
2201	} STMT_END
2202
2203	#define SET_NUMERIC_LOCAL() \
2204	STMT_START { \
2205	if (! numeric_local) \
2206	perl_set_numeric_local(); \
2207	} STMT_END
2208
2209	#else /* !USE_LOCALE_NUMERIC */
2210
2211	#define SET_NUMERIC_STANDARD() /**/
2212	#define SET_NUMERIC_LOCAL() /**/
2213
2214	#endif /* !USE_LOCALE_NUMERIC */
2215
2216	#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2217	/*
2218	* Now we have __attribute__ out of the way
2219	* Remap printf
2220	*/
2221	#define printf PerlIO_stdoutf
2222	#endif
2223
2224	#endif /* Include guard */
2225

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