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addition memory allocation checks
[imager.git] / ppport.h
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02d1d628 1
e18f39b3
TC		 2/* ppport.h -- Perl/Pollution/Portability Version 2.011
3 *
4 * Automatically Created by Devel::PPPort on Thu Apr 22 16:13:04 2004
5 *
6 * Do NOT edit this file directly! -- Edit PPPort.pm instead.
7 *
8 * Version 2.x, Copyright (C) 2001, Paul Marquess.
9 * Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
10 * This code may be used and distributed under the same license as any
11 * version of Perl.
12 *
13 * This version of ppport.h is designed to support operation with Perl
14 * installations back to 5.004, and has been tested up to 5.8.1.
15 *
16 * If this version of ppport.h is failing during the compilation of this
17 * module, please check if a newer version of Devel::PPPort is available
18 * on CPAN before sending a bug report.
19 *
20 * If you are using the latest version of Devel::PPPort and it is failing
21 * during compilation of this module, please send a report to perlbug@perl.com
22 *
23 * Include all following information:
24 *
25 * 1. The complete output from running "perl -V"
26 *
27 * 2. This file.
28 *
29 * 3. The name & version of the module you were trying to build.
30 *
31 * 4. A full log of the build that failed.
32 *
33 * 5. Any other information that you think could be relevant.
34 *
35 *
36 * For the latest version of this code, please retreive the Devel::PPPort
37 * module from CPAN.
38 *
39 */
02d1d628
AMH		 40
41/*
e18f39b3
TC		 42 * In order for a Perl extension module to be as portable as possible
43 * across differing versions of Perl itself, certain steps need to be taken.
44 * Including this header is the first major one, then using dTHR is all the
45 * appropriate places and using a PL_ prefix to refer to global Perl
46 * variables is the second.
47 *
48 */
02d1d628
AMH		 49
50
51/* If you use one of a few functions that were not present in earlier
e18f39b3
TC		 52 * versions of Perl, please add a define before the inclusion of ppport.h
53 * for a static include, or use the GLOBAL request in a single module to
54 * produce a global definition that can be referenced from the other
55 * modules.
56 *
57 * Function: Static define: Extern define:
58 * newCONSTSUB() NEED_newCONSTSUB NEED_newCONSTSUB_GLOBAL
59 *
60 */
02d1d628
AMH		 61
62
63/* To verify whether ppport.h is needed for your module, and whether any
e18f39b3
TC		 64 * special defines should be used, ppport.h can be run through Perl to check
65 * your source code. Simply say:
66 *
67 * perl -x ppport.h *.c *.h *.xs foo/bar*.c [etc]
68 *
69 * The result will be a list of patches suggesting changes that should at
70 * least be acceptable, if not necessarily the most efficient solution, or a
71 * fix for all possible problems. It won't catch where dTHR is needed, and
72 * doesn't attempt to account for global macro or function definitions,
73 * nested includes, typemaps, etc.
74 *
75 * In order to test for the need of dTHR, please try your module under a
76 * recent version of Perl that has threading compiled-in.
77 *
78 */
02d1d628
AMH		 79
80
81/*
82#!/usr/bin/perl
83@ARGV = ("*.xs") if !@ARGV;
84%badmacros = %funcs = %macros = (); $replace = 0;
85foreach (<DATA>) {
86 $funcs{$1} = 1 if /Provide:\s+(\S+)/;
87 $macros{$1} = 1 if /^#\s*define\s+([a-zA-Z0-9_]+)/;
88 $replace = $1 if /Replace:\s+(\d+)/;
89 $badmacros{$2}=$1 if $replace and /^#\s*define\s+([a-zA-Z0-9_]+).*?\s+([a-zA-Z0-9_]+)/;
90 $badmacros{$1}=$2 if /Replace (\S+) with (\S+)/;
91}
92foreach $filename (map(glob($_),@ARGV)) {
93 unless (open(IN, "<$filename")) {
94 warn "Unable to read from $file: $!\n";
95 next;
96 }
97 print "Scanning $filename...\n";
98 $c = ""; while (<IN>) { $c .= $_; } close(IN);
99 $need_include = 0; %add_func = (); $changes = 0;
100 $has_include = ($c =~ /#.*include.*ppport/m);
101
102 foreach $func (keys %funcs) {
103 if ($c =~ /#.*define.*\bNEED_$func(_GLOBAL)?\b/m) {
104 if ($c !~ /\b$func\b/m) {
105 print "If $func isn't needed, you don't need to request it.\n" if
106 $changes += ($c =~ s/^.*#.*define.*\bNEED_$func\b.*\n//m);
107 } else {
108 print "Uses $func\n";
109 $need_include = 1;
110 }
111 } else {
112 if ($c =~ /\b$func\b/m) {
113 $add_func{$func} =1 ;
114 print "Uses $func\n";
115 $need_include = 1;
116 }
117 }
118 }
119
120 if (not $need_include) {
121 foreach $macro (keys %macros) {
122 if ($c =~ /\b$macro\b/m) {
123 print "Uses $macro\n";
124 $need_include = 1;
125 }
126 }
127 }
128
129 foreach $badmacro (keys %badmacros) {
130 if ($c =~ /\b$badmacro\b/m) {
131 $changes += ($c =~ s/\b$badmacro\b/$badmacros{$badmacro}/gm);
132 print "Uses $badmacros{$badmacro} (instead of $badmacro)\n";
133 $need_include = 1;
134 }
135 }
136
137 if (scalar(keys %add_func) or $need_include != $has_include) {
138 if (!$has_include) {
139 $inc = join('',map("#define NEED_$_\n", sort keys %add_func)).
140 "#include \"ppport.h\"\n";
141 $c = "$inc$c" unless $c =~ s/#.*include.*XSUB.*\n/$&$inc/m;
142 } elsif (keys %add_func) {
143 $inc = join('',map("#define NEED_$_\n", sort keys %add_func));
144 $c = "$inc$c" unless $c =~ s/^.*#.*include.*ppport.*$/$inc$&/m;
145 }
146 if (!$need_include) {
147 print "Doesn't seem to need ppport.h.\n";
148 $c =~ s/^.*#.*include.*ppport.*\n//m;
149 }
150 $changes++;
151 }
152
153 if ($changes) {
154 open(OUT,">/tmp/ppport.h.$$");
155 print OUT $c;
156 close(OUT);
157 open(DIFF, "diff -u $filename /tmp/ppport.h.$$|");
158 while (<DIFF>) { s!/tmp/ppport\.h\.$$!$filename.patched!; print STDOUT; }
159 close(DIFF);
160 unlink("/tmp/ppport.h.$$");
161 } else {
162 print "Looks OK\n";
163 }
164}
165__DATA__
166*/
167
e18f39b3
TC		 168#ifndef _P_P_PORTABILITY_H_
169#define _P_P_PORTABILITY_H_
170
02d1d628
AMH		 171#ifndef PERL_REVISION
172# ifndef __PATCHLEVEL_H_INCLUDED__
e18f39b3
TC		 173# define PERL_PATCHLEVEL_H_IMPLICIT
174# include <patchlevel.h>
175# endif
176# if !(defined(PERL_VERSION) || (defined(SUBVERSION) && defined(PATCHLEVEL)))
177# include <could_not_find_Perl_patchlevel.h>
02d1d628
AMH		 178# endif
179# ifndef PERL_REVISION
180# define PERL_REVISION (5)
181 /* Replace: 1 */
182# define PERL_VERSION PATCHLEVEL
183# define PERL_SUBVERSION SUBVERSION
184 /* Replace PERL_PATCHLEVEL with PERL_VERSION */
185 /* Replace: 0 */
186# endif
187#endif
188
189#define PERL_BCDVERSION ((PERL_REVISION * 0x1000000L) + (PERL_VERSION * 0x1000L) + PERL_SUBVERSION)
190
e18f39b3
TC		 191/* It is very unlikely that anyone will try to use this with Perl 6
192 (or greater), but who knows.
193 */
194#if PERL_REVISION != 5
195# error ppport.h only works with Perl version 5
196#endif /* PERL_REVISION != 5 */
197
02d1d628
AMH		 198#ifndef ERRSV
199# define ERRSV perl_get_sv("@",FALSE)
200#endif
201
202#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION <= 5))
203/* Replace: 1 */
e18f39b3
TC		 204# define PL_Sv Sv
205# define PL_compiling compiling
206# define PL_copline copline
02d1d628
AMH		 207# define PL_curcop curcop
208# define PL_curstash curstash
e18f39b3
TC		 209# define PL_defgv defgv
210# define PL_dirty dirty
211# define PL_dowarn dowarn
212# define PL_hints hints
213# define PL_na na
214# define PL_perldb perldb
215# define PL_rsfp_filters rsfp_filters
216# define PL_rsfpv rsfp
217# define PL_stdingv stdingv
218# define PL_sv_no sv_no
219# define PL_sv_undef sv_undef
220# define PL_sv_yes sv_yes
02d1d628
AMH		 221/* Replace: 0 */
222#endif
223
e18f39b3
TC		 224#ifdef HASATTRIBUTE
225# if (defined(__GNUC__) && defined(__cplusplus)) || defined(__INTEL_COMPILER)
226# define PERL_UNUSED_DECL
227# else
228# define PERL_UNUSED_DECL __attribute__((unused))
229# endif
230#else
231# define PERL_UNUSED_DECL
232#endif
233
234#ifndef dNOOP
235# define NOOP (void)0
236# define dNOOP extern int Perl___notused PERL_UNUSED_DECL
237#endif
238
02d1d628 239#ifndef dTHR
e18f39b3
TC		 240# define dTHR dNOOP
241#endif
242
243#ifndef dTHX
244# define dTHX dNOOP
245# define dTHXa(x) dNOOP
246# define dTHXoa(x) dNOOP
247#endif
248
249#ifndef pTHX
250# define pTHX void
251# define pTHX_
252# define aTHX
253# define aTHX_
254#endif
255
256#ifndef dAX
257# define dAX I32 ax = MARK - PL_stack_base + 1
258#endif
259#ifndef dITEMS
260# define dITEMS I32 items = SP - MARK
261#endif
262
263/* IV could also be a quad (say, a long long), but Perls
264 * capable of those should have IVSIZE already. */
265#if !defined(IVSIZE) && defined(LONGSIZE)
266# define IVSIZE LONGSIZE
267#endif
268#ifndef IVSIZE
269# define IVSIZE 4 /* A bold guess, but the best we can make. */
270#endif
271
272#ifndef UVSIZE
273# define UVSIZE IVSIZE
274#endif
275
276#ifndef NVTYPE
277# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
278# define NVTYPE long double
279# else
280# define NVTYPE double
281# endif
282typedef NVTYPE NV;
283#endif
284
285#ifndef INT2PTR
286
287#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
288# define PTRV UV
289# define INT2PTR(any,d) (any)(d)
290#else
291# if PTRSIZE == LONGSIZE
292# define PTRV unsigned long
02d1d628 293# else
e18f39b3 294# define PTRV unsigned
02d1d628 295# endif
e18f39b3
TC		 296# define INT2PTR(any,d) (any)(PTRV)(d)
297#endif
298#define NUM2PTR(any,d) (any)(PTRV)(d)
299#define PTR2IV(p) INT2PTR(IV,p)
300#define PTR2UV(p) INT2PTR(UV,p)
301#define PTR2NV(p) NUM2PTR(NV,p)
302#if PTRSIZE == LONGSIZE
303# define PTR2ul(p) (unsigned long)(p)
304#else
305# define PTR2ul(p) INT2PTR(unsigned long,p)
02d1d628
AMH		 306#endif
307
e18f39b3
TC		 308#endif /* !INT2PTR */
309
02d1d628
AMH		 310#ifndef boolSV
311# define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
312#endif
313
314#ifndef gv_stashpvn
315# define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
316#endif
317
318#ifndef newSVpvn
319# define newSVpvn(data,len) ((len) ? newSVpv ((data), (len)) : newSVpv ("", 0))
320#endif
321
322#ifndef newRV_inc
323/* Replace: 1 */
324# define newRV_inc(sv) newRV(sv)
325/* Replace: 0 */
326#endif
327
e18f39b3
TC		 328/* DEFSV appears first in 5.004_56 */
329#ifndef DEFSV
330# define DEFSV GvSV(PL_defgv)
331#endif
332
333#ifndef SAVE_DEFSV
334# define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
335#endif
336
02d1d628
AMH		 337#ifndef newRV_noinc
338# ifdef __GNUC__
339# define newRV_noinc(sv) \
340 ({ \
341 SV *nsv = (SV*)newRV(sv); \
342 SvREFCNT_dec(sv); \
343 nsv; \
344 })
345# else
e18f39b3 346# if defined(USE_THREADS)
02d1d628
AMH		 347static SV * newRV_noinc (SV * sv)
348{
349 SV *nsv = (SV*)newRV(sv);
350 SvREFCNT_dec(sv);
351 return nsv;
352}
353# else
354# define newRV_noinc(sv) \
e18f39b3 355 (PL_Sv=(SV*)newRV(sv), SvREFCNT_dec(sv), (SV*)PL_Sv)
02d1d628
AMH		 356# endif
357# endif
358#endif
359
360/* Provide: newCONSTSUB */
361
362/* newCONSTSUB from IO.xs is in the core starting with 5.004_63 */
363#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION < 63))
364
365#if defined(NEED_newCONSTSUB)
366static
367#else
e18f39b3 368extern void newCONSTSUB(HV * stash, char * name, SV *sv);
02d1d628
AMH		 369#endif
370
371#if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
372void
373newCONSTSUB(stash,name,sv)
374HV *stash;
375char *name;
376SV *sv;
377{
378 U32 oldhints = PL_hints;
379 HV *old_cop_stash = PL_curcop->cop_stash;
380 HV *old_curstash = PL_curstash;
381 line_t oldline = PL_curcop->cop_line;
382 PL_curcop->cop_line = PL_copline;
383
384 PL_hints &= ~HINT_BLOCK_SCOPE;
385 if (stash)
386 PL_curstash = PL_curcop->cop_stash = stash;
387
388 newSUB(
389
390#if (PERL_VERSION < 3) || ((PERL_VERSION == 3) && (PERL_SUBVERSION < 22))
391 /* before 5.003_22 */
392 start_subparse(),
393#else
394# if (PERL_VERSION == 3) && (PERL_SUBVERSION == 22)
395 /* 5.003_22 */
396 start_subparse(0),
397# else
398 /* 5.003_23 onwards */
399 start_subparse(FALSE, 0),
400# endif
401#endif
402
403 newSVOP(OP_CONST, 0, newSVpv(name,0)),
404 newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */
405 newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
406 );
407
408 PL_hints = oldhints;
409 PL_curcop->cop_stash = old_cop_stash;
410 PL_curstash = old_curstash;
411 PL_curcop->cop_line = oldline;
412}
413#endif
414
415#endif /* newCONSTSUB */
416
e18f39b3
TC		 417#ifndef START_MY_CXT
418
419/*
420 * Boilerplate macros for initializing and accessing interpreter-local
421 * data from C. All statics in extensions should be reworked to use
422 * this, if you want to make the extension thread-safe. See ext/re/re.xs
423 * for an example of the use of these macros.
424 *
425 * Code that uses these macros is responsible for the following:
426 * 1. #define MY_CXT_KEY to a unique string, e.g. "DynaLoader_guts"
427 * 2. Declare a typedef named my_cxt_t that is a structure that contains
428 * all the data that needs to be interpreter-local.
429 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
430 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
431 * (typically put in the BOOT: section).
432 * 5. Use the members of the my_cxt_t structure everywhere as
433 * MY_CXT.member.
434 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
435 * access MY_CXT.
436 */
437
438#if defined(MULTIPLICITY) || defined(PERL_OBJECT) || \
439 defined(PERL_CAPI) || defined(PERL_IMPLICIT_CONTEXT)
440
441/* This must appear in all extensions that define a my_cxt_t structure,
442 * right after the definition (i.e. at file scope). The non-threads
443 * case below uses it to declare the data as static. */
444#define START_MY_CXT
445
446#if (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION < 68 ))
447/* Fetches the SV that keeps the per-interpreter data. */
448#define dMY_CXT_SV \
449 SV *my_cxt_sv = perl_get_sv(MY_CXT_KEY, FALSE)
450#else /* >= perl5.004_68 */
451#define dMY_CXT_SV \
452 SV *my_cxt_sv = *hv_fetch(PL_modglobal, MY_CXT_KEY, \
453 sizeof(MY_CXT_KEY)-1, TRUE)
454#endif /* < perl5.004_68 */
455
456/* This declaration should be used within all functions that use the
457 * interpreter-local data. */
458#define dMY_CXT \
459 dMY_CXT_SV; \
460 my_cxt_t *my_cxtp = INT2PTR(my_cxt_t*,SvUV(my_cxt_sv))
461
462/* Creates and zeroes the per-interpreter data.
463 * (We allocate my_cxtp in a Perl SV so that it will be released when
464 * the interpreter goes away.) */
465#define MY_CXT_INIT \
466 dMY_CXT_SV; \
467 /* newSV() allocates one more than needed */ \
468 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
469 Zero(my_cxtp, 1, my_cxt_t); \
470 sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
471
472/* This macro must be used to access members of the my_cxt_t structure.
473 * e.g. MYCXT.some_data */
474#define MY_CXT (*my_cxtp)
475
476/* Judicious use of these macros can reduce the number of times dMY_CXT
477 * is used. Use is similar to pTHX, aTHX etc. */
478#define pMY_CXT my_cxt_t *my_cxtp
479#define pMY_CXT_ pMY_CXT,
480#define _pMY_CXT ,pMY_CXT
481#define aMY_CXT my_cxtp
482#define aMY_CXT_ aMY_CXT,
483#define _aMY_CXT ,aMY_CXT
484
485#else /* single interpreter */
486
487#define START_MY_CXT static my_cxt_t my_cxt;
488#define dMY_CXT_SV dNOOP
489#define dMY_CXT dNOOP
490#define MY_CXT_INIT NOOP
491#define MY_CXT my_cxt
492
493#define pMY_CXT void
494#define pMY_CXT_
495#define _pMY_CXT
496#define aMY_CXT
497#define aMY_CXT_
498#define _aMY_CXT
499
500#endif
501
502#endif /* START_MY_CXT */
503
504#ifndef IVdf
505# if IVSIZE == LONGSIZE
506# define IVdf "ld"
507# define UVuf "lu"
508# define UVof "lo"
509# define UVxf "lx"
510# define UVXf "lX"
511# else
512# if IVSIZE == INTSIZE
513# define IVdf "d"
514# define UVuf "u"
515# define UVof "o"
516# define UVxf "x"
517# define UVXf "X"
518# endif
519# endif
520#endif
521
522#ifndef NVef
523# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
524 defined(PERL_PRIfldbl) /* Not very likely, but let's try anyway. */
525# define NVef PERL_PRIeldbl
526# define NVff PERL_PRIfldbl
527# define NVgf PERL_PRIgldbl
528# else
529# define NVef "e"
530# define NVff "f"
531# define NVgf "g"
532# endif
533#endif
534
535#ifndef AvFILLp /* Older perls (<=5.003) lack AvFILLp */
536# define AvFILLp AvFILL
537#endif
538
539#ifdef SvPVbyte
540# if PERL_REVISION == 5 && PERL_VERSION < 7
541 /* SvPVbyte does not work in perl-5.6.1, borrowed version for 5.7.3 */
542# undef SvPVbyte
543# define SvPVbyte(sv, lp) \
544 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
545 ? ((lp = SvCUR(sv)), SvPVX(sv)) : my_sv_2pvbyte(aTHX_ sv, &lp))
546 static char *
547 my_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp)
548 {
549 sv_utf8_downgrade(sv,0);
550 return SvPV(sv,*lp);
551 }
552# endif
553#else
554# define SvPVbyte SvPV
555#endif
556
557#ifndef SvPV_nolen
558# define SvPV_nolen(sv) \
559 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
560 ? SvPVX(sv) : sv_2pv_nolen(sv))
561 static char *
562 sv_2pv_nolen(pTHX_ register SV *sv)
563 {
564 STRLEN n_a;
565 return sv_2pv(sv, &n_a);
566 }
567#endif
568
569#ifndef get_cv
570# define get_cv(name,create) perl_get_cv(name,create)
571#endif
572
573#ifndef get_sv
574# define get_sv(name,create) perl_get_sv(name,create)
575#endif
576
577#ifndef get_av
578# define get_av(name,create) perl_get_av(name,create)
579#endif
580
581#ifndef get_hv
582# define get_hv(name,create) perl_get_hv(name,create)
583#endif
584
585#ifndef call_argv
586# define call_argv perl_call_argv
587#endif
588
589#ifndef call_method
590# define call_method perl_call_method
591#endif
592
593#ifndef call_pv
594# define call_pv perl_call_pv
595#endif
596
597#ifndef call_sv
598# define call_sv perl_call_sv
599#endif
600
601#ifndef eval_pv
602# define eval_pv perl_eval_pv
603#endif
604
605#ifndef eval_sv
606# define eval_sv perl_eval_sv
607#endif
608
609#ifndef PERL_SCAN_GREATER_THAN_UV_MAX
610# define PERL_SCAN_GREATER_THAN_UV_MAX 0x02
611#endif
612
613#ifndef PERL_SCAN_SILENT_ILLDIGIT
614# define PERL_SCAN_SILENT_ILLDIGIT 0x04
615#endif
616
617#ifndef PERL_SCAN_ALLOW_UNDERSCORES
618# define PERL_SCAN_ALLOW_UNDERSCORES 0x01
619#endif
620
621#ifndef PERL_SCAN_DISALLOW_PREFIX
622# define PERL_SCAN_DISALLOW_PREFIX 0x02
623#endif
624
625#if (PERL_VERSION > 6) || ((PERL_VERSION == 6) && (PERL_SUBVERSION >= 1))
626#define I32_CAST
627#else
628#define I32_CAST (I32*)
629#endif
630
631#ifndef grok_hex
632static UV _grok_hex (char *string, STRLEN *len, I32 *flags, NV *result) {
633 NV r = scan_hex(string, *len, I32_CAST len);
634 if (r > UV_MAX) {
635 *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
636 if (result) *result = r;
637 return UV_MAX;
638 }
639 return (UV)r;
640}
641
642# define grok_hex(string, len, flags, result) \
643 _grok_hex((string), (len), (flags), (result))
644#endif
645
646#ifndef grok_oct
647static UV _grok_oct (char *string, STRLEN *len, I32 *flags, NV *result) {
648 NV r = scan_oct(string, *len, I32_CAST len);
649 if (r > UV_MAX) {
650 *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
651 if (result) *result = r;
652 return UV_MAX;
653 }
654 return (UV)r;
655}
656
657# define grok_oct(string, len, flags, result) \
658 _grok_oct((string), (len), (flags), (result))
659#endif
660
661#if !defined(grok_bin) && defined(scan_bin)
662static UV _grok_bin (char *string, STRLEN *len, I32 *flags, NV *result) {
663 NV r = scan_bin(string, *len, I32_CAST len);
664 if (r > UV_MAX) {
665 *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
666 if (result) *result = r;
667 return UV_MAX;
668 }
669 return (UV)r;
670}
671
672# define grok_bin(string, len, flags, result) \
673 _grok_bin((string), (len), (flags), (result))
674#endif
675
676#ifndef IN_LOCALE
677# define IN_LOCALE \
678 (PL_curcop == &PL_compiling ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
679#endif
680
681#ifndef IN_LOCALE_RUNTIME
682# define IN_LOCALE_RUNTIME (PL_curcop->op_private & HINT_LOCALE)
683#endif
684
685#ifndef IN_LOCALE_COMPILETIME
686# define IN_LOCALE_COMPILETIME (PL_hints & HINT_LOCALE)
687#endif
688
689
690#ifndef IS_NUMBER_IN_UV
691# define IS_NUMBER_IN_UV 0x01
692# define IS_NUMBER_GREATER_THAN_UV_MAX 0x02
693# define IS_NUMBER_NOT_INT 0x04
694# define IS_NUMBER_NEG 0x08
695# define IS_NUMBER_INFINITY 0x10
696# define IS_NUMBER_NAN 0x20
697#endif
698
699#ifndef grok_numeric_radix
700# define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(aTHX_ sp, send)
701
702#define grok_numeric_radix Perl_grok_numeric_radix
703
704#ifdef DEFINE_PPPORT_GLOBALS
705bool
706Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send)
707{
708#ifdef USE_LOCALE_NUMERIC
709#if (PERL_VERSION > 6) || ((PERL_VERSION == 6) && (PERL_SUBVERSION >= 1))
710 if (PL_numeric_radix_sv && IN_LOCALE) {
711 STRLEN len;
712 char* radix = SvPV(PL_numeric_radix_sv, len);
713 if (*sp + len <= send && memEQ(*sp, radix, len)) {
714 *sp += len;
715 return TRUE;
716 }
717 }
718#else
719 /* pre5.6.0 perls don't have PL_numeric_radix_sv so the radix
720 * must manually be requested from locale.h */
721#include <locale.h>
722 struct lconv *lc = localeconv();
723 char *radix = lc->decimal_point;
724 if (radix && IN_LOCALE) {
725 STRLEN len = strlen(radix);
726 if (*sp + len <= send && memEQ(*sp, radix, len)) {
727 *sp += len;
728 return TRUE;
729 }
730 }
731#endif /* PERL_VERSION */
732#endif /* USE_LOCALE_NUMERIC */
733 /* always try "." if numeric radix didn't match because
734 * we may have data from different locales mixed */
735 if (*sp < send && **sp == '.') {
736 ++*sp;
737 return TRUE;
738 }
739 return FALSE;
740}
741#endif /* #ifdef DEFINE_PPPORT_GLOBALS */
742#endif /* grok_numeric_radix */
743
744#ifndef grok_number
745
746#define grok_number Perl_grok_number
747
748#ifdef DEFINE_PPPORT_GLOBALS
749int
750Perl_grok_number(pTHX_ const char *pv, STRLEN len, UV *valuep)
751{
752 const char *s = pv;
753 const char *send = pv + len;
754 const UV max_div_10 = UV_MAX / 10;
755 const char max_mod_10 = UV_MAX % 10;
756 int numtype = 0;
757 int sawinf = 0;
758 int sawnan = 0;
759
760 while (s < send && isSPACE(*s))
761 s++;
762 if (s == send) {
763 return 0;
764 } else if (*s == '-') {
765 s++;
766 numtype = IS_NUMBER_NEG;
767 }
768 else if (*s == '+')
769 s++;
770
771 if (s == send)
772 return 0;
773
774 /* next must be digit or the radix separator or beginning of infinity */
775 if (isDIGIT(*s)) {
776 /* UVs are at least 32 bits, so the first 9 decimal digits cannot
777 overflow. */
778 UV value = *s - '0';
779 /* This construction seems to be more optimiser friendly.
780 (without it gcc does the isDIGIT test and the *s - '0' separately)
781 With it gcc on arm is managing 6 instructions (6 cycles) per digit.
782 In theory the optimiser could deduce how far to unroll the loop
783 before checking for overflow. */
784 if (++s < send) {
785 int digit = *s - '0';
786 if (digit >= 0 && digit <= 9) {
787 value = value * 10 + digit;
788 if (++s < send) {
789 digit = *s - '0';
790 if (digit >= 0 && digit <= 9) {
791 value = value * 10 + digit;
792 if (++s < send) {
793 digit = *s - '0';
794 if (digit >= 0 && digit <= 9) {
795 value = value * 10 + digit;
796 if (++s < send) {
797 digit = *s - '0';
798 if (digit >= 0 && digit <= 9) {
799 value = value * 10 + digit;
800 if (++s < send) {
801 digit = *s - '0';
802 if (digit >= 0 && digit <= 9) {
803 value = value * 10 + digit;
804 if (++s < send) {
805 digit = *s - '0';
806 if (digit >= 0 && digit <= 9) {
807 value = value * 10 + digit;
808 if (++s < send) {
809 digit = *s - '0';
810 if (digit >= 0 && digit <= 9) {
811 value = value * 10 + digit;
812 if (++s < send) {
813 digit = *s - '0';
814 if (digit >= 0 && digit <= 9) {
815 value = value * 10 + digit;
816 if (++s < send) {
817 /* Now got 9 digits, so need to check
818 each time for overflow. */
819 digit = *s - '0';
820 while (digit >= 0 && digit <= 9
821 && (value < max_div_10
822 || (value == max_div_10
823 && digit <= max_mod_10))) {
824 value = value * 10 + digit;
825 if (++s < send)
826 digit = *s - '0';
827 else
828 break;
829 }
830 if (digit >= 0 && digit <= 9
831 && (s < send)) {
832 /* value overflowed.
833 skip the remaining digits, don't
834 worry about setting *valuep. */
835 do {
836 s++;
837 } while (s < send && isDIGIT(*s));
838 numtype |=
839 IS_NUMBER_GREATER_THAN_UV_MAX;
840 goto skip_value;
841 }
842 }
843 }
844 }
845 }
846 }
847 }
848 }
849 }
850 }
851 }
852 }
853 }
854 }
855 }
856 }
857 }
858 }
859 numtype |= IS_NUMBER_IN_UV;
860 if (valuep)
861 *valuep = value;
862
863 skip_value:
864 if (GROK_NUMERIC_RADIX(&s, send)) {
865 numtype |= IS_NUMBER_NOT_INT;
866 while (s < send && isDIGIT(*s)) /* optional digits after the radix */
867 s++;
868 }
869 }
870 else if (GROK_NUMERIC_RADIX(&s, send)) {
871 numtype |= IS_NUMBER_NOT_INT | IS_NUMBER_IN_UV; /* valuep assigned below */
872 /* no digits before the radix means we need digits after it */
873 if (s < send && isDIGIT(*s)) {
874 do {
875 s++;
876 } while (s < send && isDIGIT(*s));
877 if (valuep) {
878 /* integer approximation is valid - it's 0. */
879 *valuep = 0;
880 }
881 }
882 else
883 return 0;
884 } else if (*s == 'I' || *s == 'i') {
885 s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
886 s++; if (s == send || (*s != 'F' && *s != 'f')) return 0;
887 s++; if (s < send && (*s == 'I' || *s == 'i')) {
888 s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
889 s++; if (s == send || (*s != 'I' && *s != 'i')) return 0;
890 s++; if (s == send || (*s != 'T' && *s != 't')) return 0;
891 s++; if (s == send || (*s != 'Y' && *s != 'y')) return 0;
892 s++;
893 }
894 sawinf = 1;
895 } else if (*s == 'N' || *s == 'n') {
896 /* XXX TODO: There are signaling NaNs and quiet NaNs. */
897 s++; if (s == send || (*s != 'A' && *s != 'a')) return 0;
898 s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
899 s++;
900 sawnan = 1;
901 } else
902 return 0;
903
904 if (sawinf) {
905 numtype &= IS_NUMBER_NEG; /* Keep track of sign */
906 numtype |= IS_NUMBER_INFINITY | IS_NUMBER_NOT_INT;
907 } else if (sawnan) {
908 numtype &= IS_NUMBER_NEG; /* Keep track of sign */
909 numtype |= IS_NUMBER_NAN | IS_NUMBER_NOT_INT;
910 } else if (s < send) {
911 /* we can have an optional exponent part */
912 if (*s == 'e' || *s == 'E') {
913 /* The only flag we keep is sign. Blow away any "it's UV" */
914 numtype &= IS_NUMBER_NEG;
915 numtype |= IS_NUMBER_NOT_INT;
916 s++;
917 if (s < send && (*s == '-' || *s == '+'))
918 s++;
919 if (s < send && isDIGIT(*s)) {
920 do {
921 s++;
922 } while (s < send && isDIGIT(*s));
923 }
924 else
925 return 0;
926 }
927 }
928 while (s < send && isSPACE(*s))
929 s++;
930 if (s >= send)
931 return numtype;
932 if (len == 10 && memEQ(pv, "0 but true", 10)) {
933 if (valuep)
934 *valuep = 0;
935 return IS_NUMBER_IN_UV;
936 }
937 return 0;
938}
939#endif /* DEFINE_PPPORT_GLOBALS */
940
941#endif /* grok_number */
942
943#ifndef PERL_MAGIC_sv
944# define PERL_MAGIC_sv '\0'
945#endif
946
947#ifndef PERL_MAGIC_overload
948# define PERL_MAGIC_overload 'A'
949#endif
950
951#ifndef PERL_MAGIC_overload_elem
952# define PERL_MAGIC_overload_elem 'a'
953#endif
954
955#ifndef PERL_MAGIC_overload_table
956# define PERL_MAGIC_overload_table 'c'
957#endif
958
959#ifndef PERL_MAGIC_bm
960# define PERL_MAGIC_bm 'B'
961#endif
962
963#ifndef PERL_MAGIC_regdata
964# define PERL_MAGIC_regdata 'D'
965#endif
966
967#ifndef PERL_MAGIC_regdatum
968# define PERL_MAGIC_regdatum 'd'
969#endif
970
971#ifndef PERL_MAGIC_env
972# define PERL_MAGIC_env 'E'
973#endif
974
975#ifndef PERL_MAGIC_envelem
976# define PERL_MAGIC_envelem 'e'
977#endif
978
979#ifndef PERL_MAGIC_fm
980# define PERL_MAGIC_fm 'f'
981#endif
982
983#ifndef PERL_MAGIC_regex_global
984# define PERL_MAGIC_regex_global 'g'
985#endif
986
987#ifndef PERL_MAGIC_isa
988# define PERL_MAGIC_isa 'I'
989#endif
990
991#ifndef PERL_MAGIC_isaelem
992# define PERL_MAGIC_isaelem 'i'
993#endif
994
995#ifndef PERL_MAGIC_nkeys
996# define PERL_MAGIC_nkeys 'k'
997#endif
998
999#ifndef PERL_MAGIC_dbfile
1000# define PERL_MAGIC_dbfile 'L'
1001#endif
1002
1003#ifndef PERL_MAGIC_dbline
1004# define PERL_MAGIC_dbline 'l'
1005#endif
1006
1007#ifndef PERL_MAGIC_mutex
1008# define PERL_MAGIC_mutex 'm'
1009#endif
1010
1011#ifndef PERL_MAGIC_shared
1012# define PERL_MAGIC_shared 'N'
1013#endif
1014
1015#ifndef PERL_MAGIC_shared_scalar
1016# define PERL_MAGIC_shared_scalar 'n'
1017#endif
1018
1019#ifndef PERL_MAGIC_collxfrm
1020# define PERL_MAGIC_collxfrm 'o'
1021#endif
1022
1023#ifndef PERL_MAGIC_tied
1024# define PERL_MAGIC_tied 'P'
1025#endif
1026
1027#ifndef PERL_MAGIC_tiedelem
1028# define PERL_MAGIC_tiedelem 'p'
1029#endif
1030
1031#ifndef PERL_MAGIC_tiedscalar
1032# define PERL_MAGIC_tiedscalar 'q'
1033#endif
1034
1035#ifndef PERL_MAGIC_qr
1036# define PERL_MAGIC_qr 'r'
1037#endif
1038
1039#ifndef PERL_MAGIC_sig
1040# define PERL_MAGIC_sig 'S'
1041#endif
1042
1043#ifndef PERL_MAGIC_sigelem
1044# define PERL_MAGIC_sigelem 's'
1045#endif
1046
1047#ifndef PERL_MAGIC_taint
1048# define PERL_MAGIC_taint 't'
1049#endif
1050
1051#ifndef PERL_MAGIC_uvar
1052# define PERL_MAGIC_uvar 'U'
1053#endif
1054
1055#ifndef PERL_MAGIC_uvar_elem
1056# define PERL_MAGIC_uvar_elem 'u'
1057#endif
1058
1059#ifndef PERL_MAGIC_vstring
1060# define PERL_MAGIC_vstring 'V'
1061#endif
1062
1063#ifndef PERL_MAGIC_vec
1064# define PERL_MAGIC_vec 'v'
1065#endif
1066
1067#ifndef PERL_MAGIC_utf8
1068# define PERL_MAGIC_utf8 'w'
1069#endif
1070
1071#ifndef PERL_MAGIC_substr
1072# define PERL_MAGIC_substr 'x'
1073#endif
1074
1075#ifndef PERL_MAGIC_defelem
1076# define PERL_MAGIC_defelem 'y'
1077#endif
1078
1079#ifndef PERL_MAGIC_glob
1080# define PERL_MAGIC_glob '*'
1081#endif
1082
1083#ifndef PERL_MAGIC_arylen
1084# define PERL_MAGIC_arylen '#'
1085#endif
1086
1087#ifndef PERL_MAGIC_pos
1088# define PERL_MAGIC_pos '.'
1089#endif
1090
1091#ifndef PERL_MAGIC_backref
1092# define PERL_MAGIC_backref '<'
1093#endif
1094
1095#ifndef PERL_MAGIC_ext
1096# define PERL_MAGIC_ext '~'
1097#endif
02d1d628
AMH		 1098
1099#endif /* _P_P_PORTABILITY_H_ */
e18f39b3
TC		 1100
1101/* End of File ppport.h */
Image manipulation for perl