1
2/* ppport.h -- Perl/Pollution/Portability Version 2.011
3 *
4 * Automatically Created by Devel::PPPort on Wed Nov  9 08:57:42 2005
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 */
40
41/*
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 */
49
50
51/* If you use one of a few functions that were not present in earlier
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 */
61
62
63/* To verify whether ppport.h is needed for your module, and whether any
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 */
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
168#ifndef _P_P_PORTABILITY_H_
169#define _P_P_PORTABILITY_H_
170
171#ifndef PERL_REVISION
172#   ifndef __PATCHLEVEL_H_INCLUDED__
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>
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
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
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 */
204#	define PL_Sv		Sv
205#	define PL_compiling	compiling
206#	define PL_copline	copline
207#	define PL_curcop	curcop
208#	define PL_curstash	curstash
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
221/* Replace: 0 */
222#endif
223
224#if defined(HASATTRIBUTE)
225#  if !defined(PERL_UNUSED_DECL)
226#    if (defined(__GNUC__) && defined(__cplusplus)) || defined(__INTEL_COMPILER)
227#      define PERL_UNUSED_DECL
228#    else
229#      define PERL_UNUSED_DECL __attribute__((unused))
230#    endif
231#  else
232#    define PERL_UNUSED_DECL
233#  endif
234#endif
235
236#ifndef dNOOP
237#  define NOOP (void)0
238#  define dNOOP extern int Perl___notused PERL_UNUSED_DECL
239#endif
240
241#ifndef dTHR
242#  define dTHR          dNOOP
243#endif
244
245#ifndef dTHX
246#  define dTHX          dNOOP
247#  define dTHXa(x)      dNOOP
248#  define dTHXoa(x)     dNOOP
249#endif
250
251#ifndef pTHX
252#    define pTHX	void
253#    define pTHX_
254#    define aTHX
255#    define aTHX_
256#endif
257
258#ifndef dAX
259#   define dAX I32 ax = MARK - PL_stack_base + 1
260#endif
261#ifndef dITEMS
262#   define dITEMS I32 items = SP - MARK
263#endif
264
265/* IV could also be a quad (say, a long long), but Perls
266 * capable of those should have IVSIZE already. */
267#if !defined(IVSIZE) && defined(LONGSIZE)
268#   define IVSIZE LONGSIZE
269#endif
270#ifndef IVSIZE
271#   define IVSIZE 4 /* A bold guess, but the best we can make. */
272#endif
273
274#ifndef UVSIZE
275#   define UVSIZE IVSIZE
276#endif
277
278#ifndef NVTYPE
279#   if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
280#       define NVTYPE long double
281#   else
282#       define NVTYPE double
283#   endif
284typedef NVTYPE NV;
285#endif
286
287#ifndef INT2PTR
288
289#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
290#  define PTRV                  UV
291#  define INT2PTR(any,d)        (any)(d)
292#else
293#  if PTRSIZE == LONGSIZE
294#    define PTRV                unsigned long
295#  else
296#    define PTRV                unsigned
297#  endif
298#  define INT2PTR(any,d)        (any)(PTRV)(d)
299#endif
300#define NUM2PTR(any,d)  (any)(PTRV)(d)
301#define PTR2IV(p)       INT2PTR(IV,p)
302#define PTR2UV(p)       INT2PTR(UV,p)
303#define PTR2NV(p)       NUM2PTR(NV,p)
304#if PTRSIZE == LONGSIZE
305#  define PTR2ul(p)     (unsigned long)(p)
306#else
307#  define PTR2ul(p)     INT2PTR(unsigned long,p)
308#endif
309
310#endif /* !INT2PTR */
311
312#ifndef boolSV
313#	define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
314#endif
315
316#ifndef gv_stashpvn
317#	define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
318#endif
319
320#ifndef newSVpvn
321#	define newSVpvn(data,len) ((len) ? newSVpv ((data), (len)) : newSVpv ("", 0))
322#endif
323
324#ifndef newRV_inc
325/* Replace: 1 */
326#	define newRV_inc(sv) newRV(sv)
327/* Replace: 0 */
328#endif
329
330/* DEFSV appears first in 5.004_56 */
331#ifndef DEFSV
332#  define DEFSV	GvSV(PL_defgv)
333#endif
334
335#ifndef SAVE_DEFSV
336#    define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
337#endif
338
339#ifndef newRV_noinc
340#  ifdef __GNUC__
341#    define newRV_noinc(sv)               \
342      ({                                  \
343          SV *nsv = (SV*)newRV(sv);       \
344          SvREFCNT_dec(sv);               \
345          nsv;                            \
346      })
347#  else
348#    if defined(USE_THREADS)
349static SV * newRV_noinc (SV * sv)
350{
351          SV *nsv = (SV*)newRV(sv);
352          SvREFCNT_dec(sv);
353          return nsv;
354}
355#    else
356#      define newRV_noinc(sv)    \
357        (PL_Sv=(SV*)newRV(sv), SvREFCNT_dec(sv), (SV*)PL_Sv)
358#    endif
359#  endif
360#endif
361
362/* Provide: newCONSTSUB */
363
364/* newCONSTSUB from IO.xs is in the core starting with 5.004_63 */
365#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION < 63))
366
367#if defined(NEED_newCONSTSUB)
368static
369#else
370extern void newCONSTSUB(HV * stash, char * name, SV *sv);
371#endif
372
373#if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
374void
375newCONSTSUB(stash,name,sv)
376HV *stash;
377char *name;
378SV *sv;
379{
380	U32 oldhints = PL_hints;
381	HV *old_cop_stash = PL_curcop->cop_stash;
382	HV *old_curstash = PL_curstash;
383	line_t oldline = PL_curcop->cop_line;
384	PL_curcop->cop_line = PL_copline;
385
386	PL_hints &= ~HINT_BLOCK_SCOPE;
387	if (stash)
388		PL_curstash = PL_curcop->cop_stash = stash;
389
390	newSUB(
391
392#if (PERL_VERSION < 3) || ((PERL_VERSION == 3) && (PERL_SUBVERSION < 22))
393     /* before 5.003_22 */
394		start_subparse(),
395#else
396#  if (PERL_VERSION == 3) && (PERL_SUBVERSION == 22)
397     /* 5.003_22 */
398     		start_subparse(0),
399#  else
400     /* 5.003_23  onwards */
401     		start_subparse(FALSE, 0),
402#  endif
403#endif
404
405		newSVOP(OP_CONST, 0, newSVpv(name,0)),
406		newSVOP(OP_CONST, 0, &PL_sv_no),   /* SvPV(&PL_sv_no) == "" -- GMB */
407		newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
408	);
409
410	PL_hints = oldhints;
411	PL_curcop->cop_stash = old_cop_stash;
412	PL_curstash = old_curstash;
413	PL_curcop->cop_line = oldline;
414}
415#endif
416
417#endif /* newCONSTSUB */
418
419#ifndef START_MY_CXT
420
421/*
422 * Boilerplate macros for initializing and accessing interpreter-local
423 * data from C.  All statics in extensions should be reworked to use
424 * this, if you want to make the extension thread-safe.  See ext/re/re.xs
425 * for an example of the use of these macros.
426 *
427 * Code that uses these macros is responsible for the following:
428 * 1. #define MY_CXT_KEY to a unique string, e.g. "DynaLoader_guts"
429 * 2. Declare a typedef named my_cxt_t that is a structure that contains
430 *    all the data that needs to be interpreter-local.
431 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
432 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
433 *    (typically put in the BOOT: section).
434 * 5. Use the members of the my_cxt_t structure everywhere as
435 *    MY_CXT.member.
436 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
437 *    access MY_CXT.
438 */
439
440#if defined(MULTIPLICITY) || defined(PERL_OBJECT) || \
441    defined(PERL_CAPI)    || defined(PERL_IMPLICIT_CONTEXT)
442
443/* This must appear in all extensions that define a my_cxt_t structure,
444 * right after the definition (i.e. at file scope).  The non-threads
445 * case below uses it to declare the data as static. */
446#define START_MY_CXT
447
448#if (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION < 68 ))
449/* Fetches the SV that keeps the per-interpreter data. */
450#define dMY_CXT_SV \
451	SV *my_cxt_sv = perl_get_sv(MY_CXT_KEY, FALSE)
452#else /* >= perl5.004_68 */
453#define dMY_CXT_SV \
454	SV *my_cxt_sv = *hv_fetch(PL_modglobal, MY_CXT_KEY,		\
455				  sizeof(MY_CXT_KEY)-1, TRUE)
456#endif /* < perl5.004_68 */
457
458/* This declaration should be used within all functions that use the
459 * interpreter-local data. */
460#define dMY_CXT	\
461	dMY_CXT_SV;							\
462	my_cxt_t *my_cxtp = INT2PTR(my_cxt_t*,SvUV(my_cxt_sv))
463
464/* Creates and zeroes the per-interpreter data.
465 * (We allocate my_cxtp in a Perl SV so that it will be released when
466 * the interpreter goes away.) */
467#define MY_CXT_INIT \
468	dMY_CXT_SV;							\
469	/* newSV() allocates one more than needed */			\
470	my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
471	Zero(my_cxtp, 1, my_cxt_t);					\
472	sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
473
474/* This macro must be used to access members of the my_cxt_t structure.
475 * e.g. MYCXT.some_data */
476#define MY_CXT		(*my_cxtp)
477
478/* Judicious use of these macros can reduce the number of times dMY_CXT
479 * is used.  Use is similar to pTHX, aTHX etc. */
480#define pMY_CXT		my_cxt_t *my_cxtp
481#define pMY_CXT_	pMY_CXT,
482#define _pMY_CXT	,pMY_CXT
483#define aMY_CXT		my_cxtp
484#define aMY_CXT_	aMY_CXT,
485#define _aMY_CXT	,aMY_CXT
486
487#else /* single interpreter */
488
489#define START_MY_CXT	static my_cxt_t my_cxt;
490#define dMY_CXT_SV	dNOOP
491#define dMY_CXT		dNOOP
492#define MY_CXT_INIT	NOOP
493#define MY_CXT		my_cxt
494
495#define pMY_CXT		void
496#define pMY_CXT_
497#define _pMY_CXT
498#define aMY_CXT
499#define aMY_CXT_
500#define _aMY_CXT
501
502#endif
503
504#endif /* START_MY_CXT */
505
506#ifndef IVdf
507#  if IVSIZE == LONGSIZE
508#       define	IVdf		"ld"
509#       define	UVuf		"lu"
510#       define	UVof		"lo"
511#       define	UVxf		"lx"
512#       define	UVXf		"lX"
513#   else
514#       if IVSIZE == INTSIZE
515#           define	IVdf	"d"
516#           define	UVuf	"u"
517#           define	UVof	"o"
518#           define	UVxf	"x"
519#           define	UVXf	"X"
520#       endif
521#   endif
522#endif
523
524#ifndef NVef
525#   if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
526	defined(PERL_PRIfldbl) /* Not very likely, but let's try anyway. */
527#       define NVef		PERL_PRIeldbl
528#       define NVff		PERL_PRIfldbl
529#       define NVgf		PERL_PRIgldbl
530#   else
531#       define NVef		"e"
532#       define NVff		"f"
533#       define NVgf		"g"
534#   endif
535#endif
536
537#ifndef AvFILLp			/* Older perls (<=5.003) lack AvFILLp */
538#   define AvFILLp AvFILL
539#endif
540
541#ifdef SvPVbyte
542#   if PERL_REVISION == 5 && PERL_VERSION < 7
543       /* SvPVbyte does not work in perl-5.6.1, borrowed version for 5.7.3 */
544#       undef SvPVbyte
545#       define SvPVbyte(sv, lp) \
546          ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
547           ? ((lp = SvCUR(sv)), SvPVX(sv)) : my_sv_2pvbyte(aTHX_ sv, &lp))
548       static char *
549       my_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp)
550       {
551           sv_utf8_downgrade(sv,0);
552           return SvPV(sv,*lp);
553       }
554#   endif
555#else
556#   define SvPVbyte SvPV
557#endif
558
559#ifndef SvPV_nolen
560#   define SvPV_nolen(sv) \
561        ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
562         ? SvPVX(sv) : sv_2pv_nolen(sv))
563    static char *
564    sv_2pv_nolen(pTHX_ register SV *sv)
565    {
566        STRLEN n_a;
567        return sv_2pv(sv, &n_a);
568    }
569#endif
570
571#ifndef get_cv
572#   define get_cv(name,create) perl_get_cv(name,create)
573#endif
574
575#ifndef get_sv
576#   define get_sv(name,create) perl_get_sv(name,create)
577#endif
578
579#ifndef get_av
580#   define get_av(name,create) perl_get_av(name,create)
581#endif
582
583#ifndef get_hv
584#   define get_hv(name,create) perl_get_hv(name,create)
585#endif
586
587#ifndef call_argv
588#   define call_argv perl_call_argv
589#endif
590
591#ifndef call_method
592#   define call_method perl_call_method
593#endif
594
595#ifndef call_pv
596#   define call_pv perl_call_pv
597#endif
598
599#ifndef call_sv
600#   define call_sv perl_call_sv
601#endif
602
603#ifndef eval_pv
604#   define eval_pv perl_eval_pv
605#endif
606
607#ifndef eval_sv
608#   define eval_sv perl_eval_sv
609#endif
610
611#ifndef PERL_SCAN_GREATER_THAN_UV_MAX
612#   define PERL_SCAN_GREATER_THAN_UV_MAX 0x02
613#endif
614
615#ifndef PERL_SCAN_SILENT_ILLDIGIT
616#   define PERL_SCAN_SILENT_ILLDIGIT 0x04
617#endif
618
619#ifndef PERL_SCAN_ALLOW_UNDERSCORES
620#   define PERL_SCAN_ALLOW_UNDERSCORES 0x01
621#endif
622
623#ifndef PERL_SCAN_DISALLOW_PREFIX
624#   define PERL_SCAN_DISALLOW_PREFIX 0x02
625#endif
626
627#if (PERL_VERSION > 6) || ((PERL_VERSION == 6) && (PERL_SUBVERSION >= 1))
628#define I32_CAST
629#else
630#define I32_CAST (I32*)
631#endif
632
633#ifndef grok_hex
634static UV _grok_hex (char *string, STRLEN *len, I32 *flags, NV *result) {
635    NV r = scan_hex(string, *len, I32_CAST len);
636    if (r > UV_MAX) {
637        *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
638        if (result) *result = r;
639        return UV_MAX;
640    }
641    return (UV)r;
642}
643
644#   define grok_hex(string, len, flags, result)     \
645        _grok_hex((string), (len), (flags), (result))
646#endif
647
648#ifndef grok_oct
649static UV _grok_oct (char *string, STRLEN *len, I32 *flags, NV *result) {
650    NV r = scan_oct(string, *len, I32_CAST len);
651    if (r > UV_MAX) {
652        *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
653        if (result) *result = r;
654        return UV_MAX;
655    }
656    return (UV)r;
657}
658
659#   define grok_oct(string, len, flags, result)     \
660        _grok_oct((string), (len), (flags), (result))
661#endif
662
663#if !defined(grok_bin) && defined(scan_bin)
664static UV _grok_bin (char *string, STRLEN *len, I32 *flags, NV *result) {
665    NV r = scan_bin(string, *len, I32_CAST len);
666    if (r > UV_MAX) {
667        *flags |= PERL_SCAN_GREATER_THAN_UV_MAX;
668        if (result) *result = r;
669        return UV_MAX;
670    }
671    return (UV)r;
672}
673
674#   define grok_bin(string, len, flags, result)     \
675        _grok_bin((string), (len), (flags), (result))
676#endif
677
678#ifndef IN_LOCALE
679#   define IN_LOCALE \
680	(PL_curcop == &PL_compiling ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
681#endif
682
683#ifndef IN_LOCALE_RUNTIME
684#   define IN_LOCALE_RUNTIME   (PL_curcop->op_private & HINT_LOCALE)
685#endif
686
687#ifndef IN_LOCALE_COMPILETIME
688#   define IN_LOCALE_COMPILETIME   (PL_hints & HINT_LOCALE)
689#endif
690
691
692#ifndef IS_NUMBER_IN_UV
693#   define IS_NUMBER_IN_UV		            0x01
694#   define IS_NUMBER_GREATER_THAN_UV_MAX    0x02
695#   define IS_NUMBER_NOT_INT	            0x04
696#   define IS_NUMBER_NEG		            0x08
697#   define IS_NUMBER_INFINITY	            0x10
698#   define IS_NUMBER_NAN                    0x20
699#endif
700
701#ifndef grok_numeric_radix
702#   define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(aTHX_ sp, send)
703
704#define grok_numeric_radix Perl_grok_numeric_radix
705
706bool
707Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send)
708{
709#ifdef USE_LOCALE_NUMERIC
710#if (PERL_VERSION > 6) || ((PERL_VERSION == 6) && (PERL_SUBVERSION >= 1))
711    if (PL_numeric_radix_sv && IN_LOCALE) {
712        STRLEN len;
713        char* radix = SvPV(PL_numeric_radix_sv, len);
714        if (*sp + len <= send && memEQ(*sp, radix, len)) {
715            *sp += len;
716            return TRUE;
717        }
718    }
719#else
720    /* pre5.6.0 perls don't have PL_numeric_radix_sv so the radix
721     * must manually be requested from locale.h */
722#include <locale.h>
723    struct lconv *lc = localeconv();
724    char *radix = lc->decimal_point;
725    if (radix && IN_LOCALE) {
726        STRLEN len = strlen(radix);
727        if (*sp + len <= send && memEQ(*sp, radix, len)) {
728            *sp += len;
729            return TRUE;
730        }
731    }
732#endif /* PERL_VERSION */
733#endif /* USE_LOCALE_NUMERIC */
734    /* always try "." if numeric radix didn't match because
735     * we may have data from different locales mixed */
736    if (*sp < send && **sp == '.') {
737        ++*sp;
738        return TRUE;
739    }
740    return FALSE;
741}
742#endif /* grok_numeric_radix */
743
744#ifndef grok_number
745
746#define grok_number Perl_grok_number
747
748int
749Perl_grok_number(pTHX_ const char *pv, STRLEN len, UV *valuep)
750{
751  const char *s = pv;
752  const char *send = pv + len;
753  const UV max_div_10 = UV_MAX / 10;
754  const char max_mod_10 = UV_MAX % 10;
755  int numtype = 0;
756  int sawinf = 0;
757  int sawnan = 0;
758
759  while (s < send && isSPACE(*s))
760    s++;
761  if (s == send) {
762    return 0;
763  } else if (*s == '-') {
764    s++;
765    numtype = IS_NUMBER_NEG;
766  }
767  else if (*s == '+')
768  s++;
769
770  if (s == send)
771    return 0;
772
773  /* next must be digit or the radix separator or beginning of infinity */
774  if (isDIGIT(*s)) {
775    /* UVs are at least 32 bits, so the first 9 decimal digits cannot
776       overflow.  */
777    UV value = *s - '0';
778    /* This construction seems to be more optimiser friendly.
779       (without it gcc does the isDIGIT test and the *s - '0' separately)
780       With it gcc on arm is managing 6 instructions (6 cycles) per digit.
781       In theory the optimiser could deduce how far to unroll the loop
782       before checking for overflow.  */
783    if (++s < send) {
784      int digit = *s - '0';
785      if (digit >= 0 && digit <= 9) {
786        value = value * 10 + digit;
787        if (++s < send) {
788          digit = *s - '0';
789          if (digit >= 0 && digit <= 9) {
790            value = value * 10 + digit;
791            if (++s < send) {
792              digit = *s - '0';
793              if (digit >= 0 && digit <= 9) {
794                value = value * 10 + digit;
795		        if (++s < send) {
796                  digit = *s - '0';
797                  if (digit >= 0 && digit <= 9) {
798                    value = value * 10 + digit;
799                    if (++s < send) {
800                      digit = *s - '0';
801                      if (digit >= 0 && digit <= 9) {
802                        value = value * 10 + digit;
803                        if (++s < send) {
804                          digit = *s - '0';
805                          if (digit >= 0 && digit <= 9) {
806                            value = value * 10 + digit;
807                            if (++s < send) {
808                              digit = *s - '0';
809                              if (digit >= 0 && digit <= 9) {
810                                value = value * 10 + digit;
811                                if (++s < send) {
812                                  digit = *s - '0';
813                                  if (digit >= 0 && digit <= 9) {
814                                    value = value * 10 + digit;
815                                    if (++s < send) {
816                                      /* Now got 9 digits, so need to check
817                                         each time for overflow.  */
818                                      digit = *s - '0';
819                                      while (digit >= 0 && digit <= 9
820                                             && (value < max_div_10
821                                                 || (value == max_div_10
822                                                     && digit <= max_mod_10))) {
823                                        value = value * 10 + digit;
824                                        if (++s < send)
825                                          digit = *s - '0';
826                                        else
827                                          break;
828                                      }
829                                      if (digit >= 0 && digit <= 9
830                                          && (s < send)) {
831                                        /* value overflowed.
832                                           skip the remaining digits, don't
833                                           worry about setting *valuep.  */
834                                        do {
835                                          s++;
836                                        } while (s < send && isDIGIT(*s));
837                                        numtype |=
838                                          IS_NUMBER_GREATER_THAN_UV_MAX;
839                                        goto skip_value;
840                                      }
841                                    }
842                                  }
843				                }
844                              }
845                            }
846                          }
847                        }
848                      }
849                    }
850                  }
851                }
852              }
853            }
854          }
855	    }
856      }
857    }
858    numtype |= IS_NUMBER_IN_UV;
859    if (valuep)
860      *valuep = value;
861
862  skip_value:
863    if (GROK_NUMERIC_RADIX(&s, send)) {
864      numtype |= IS_NUMBER_NOT_INT;
865      while (s < send && isDIGIT(*s))  /* optional digits after the radix */
866        s++;
867    }
868  }
869  else if (GROK_NUMERIC_RADIX(&s, send)) {
870    numtype |= IS_NUMBER_NOT_INT | IS_NUMBER_IN_UV; /* valuep assigned below */
871    /* no digits before the radix means we need digits after it */
872    if (s < send && isDIGIT(*s)) {
873      do {
874        s++;
875      } while (s < send && isDIGIT(*s));
876      if (valuep) {
877        /* integer approximation is valid - it's 0.  */
878        *valuep = 0;
879      }
880    }
881    else
882      return 0;
883  } else if (*s == 'I' || *s == 'i') {
884    s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
885    s++; if (s == send || (*s != 'F' && *s != 'f')) return 0;
886    s++; if (s < send && (*s == 'I' || *s == 'i')) {
887      s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
888      s++; if (s == send || (*s != 'I' && *s != 'i')) return 0;
889      s++; if (s == send || (*s != 'T' && *s != 't')) return 0;
890      s++; if (s == send || (*s != 'Y' && *s != 'y')) return 0;
891      s++;
892    }
893    sawinf = 1;
894  } else if (*s == 'N' || *s == 'n') {
895    /* XXX TODO: There are signaling NaNs and quiet NaNs. */
896    s++; if (s == send || (*s != 'A' && *s != 'a')) return 0;
897    s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
898    s++;
899    sawnan = 1;
900  } else
901    return 0;
902
903  if (sawinf) {
904    numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
905    numtype |= IS_NUMBER_INFINITY | IS_NUMBER_NOT_INT;
906  } else if (sawnan) {
907    numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
908    numtype |= IS_NUMBER_NAN | IS_NUMBER_NOT_INT;
909  } else if (s < send) {
910    /* we can have an optional exponent part */
911    if (*s == 'e' || *s == 'E') {
912      /* The only flag we keep is sign.  Blow away any "it's UV"  */
913      numtype &= IS_NUMBER_NEG;
914      numtype |= IS_NUMBER_NOT_INT;
915      s++;
916      if (s < send && (*s == '-' || *s == '+'))
917        s++;
918      if (s < send && isDIGIT(*s)) {
919        do {
920          s++;
921        } while (s < send && isDIGIT(*s));
922      }
923      else
924      return 0;
925    }
926  }
927  while (s < send && isSPACE(*s))
928    s++;
929  if (s >= send)
930    return numtype;
931  if (len == 10 && memEQ(pv, "0 but true", 10)) {
932    if (valuep)
933      *valuep = 0;
934    return IS_NUMBER_IN_UV;
935  }
936  return 0;
937}
938#endif /* grok_number */
939
940#ifndef PERL_MAGIC_sv
941#   define PERL_MAGIC_sv             '\0'
942#endif
943
944#ifndef PERL_MAGIC_overload
945#   define PERL_MAGIC_overload       'A'
946#endif
947
948#ifndef PERL_MAGIC_overload_elem
949#   define PERL_MAGIC_overload_elem  'a'
950#endif
951
952#ifndef PERL_MAGIC_overload_table
953#   define PERL_MAGIC_overload_table 'c'
954#endif
955
956#ifndef PERL_MAGIC_bm
957#   define PERL_MAGIC_bm             'B'
958#endif
959
960#ifndef PERL_MAGIC_regdata
961#   define PERL_MAGIC_regdata        'D'
962#endif
963
964#ifndef PERL_MAGIC_regdatum
965#   define PERL_MAGIC_regdatum       'd'
966#endif
967
968#ifndef PERL_MAGIC_env
969#   define PERL_MAGIC_env            'E'
970#endif
971
972#ifndef PERL_MAGIC_envelem
973#   define PERL_MAGIC_envelem        'e'
974#endif
975
976#ifndef PERL_MAGIC_fm
977#   define PERL_MAGIC_fm             'f'
978#endif
979
980#ifndef PERL_MAGIC_regex_global
981#   define PERL_MAGIC_regex_global   'g'
982#endif
983
984#ifndef PERL_MAGIC_isa
985#   define PERL_MAGIC_isa            'I'
986#endif
987
988#ifndef PERL_MAGIC_isaelem
989#   define PERL_MAGIC_isaelem        'i'
990#endif
991
992#ifndef PERL_MAGIC_nkeys
993#   define PERL_MAGIC_nkeys          'k'
994#endif
995
996#ifndef PERL_MAGIC_dbfile
997#   define PERL_MAGIC_dbfile         'L'
998#endif
999
1000#ifndef PERL_MAGIC_dbline
1001#   define PERL_MAGIC_dbline         'l'
1002#endif
1003
1004#ifndef PERL_MAGIC_mutex
1005#   define PERL_MAGIC_mutex          'm'
1006#endif
1007
1008#ifndef PERL_MAGIC_shared
1009#   define PERL_MAGIC_shared         'N'
1010#endif
1011
1012#ifndef PERL_MAGIC_shared_scalar
1013#   define PERL_MAGIC_shared_scalar  'n'
1014#endif
1015
1016#ifndef PERL_MAGIC_collxfrm
1017#   define PERL_MAGIC_collxfrm       'o'
1018#endif
1019
1020#ifndef PERL_MAGIC_tied
1021#   define PERL_MAGIC_tied           'P'
1022#endif
1023
1024#ifndef PERL_MAGIC_tiedelem
1025#   define PERL_MAGIC_tiedelem       'p'
1026#endif
1027
1028#ifndef PERL_MAGIC_tiedscalar
1029#   define PERL_MAGIC_tiedscalar     'q'
1030#endif
1031
1032#ifndef PERL_MAGIC_qr
1033#   define PERL_MAGIC_qr             'r'
1034#endif
1035
1036#ifndef PERL_MAGIC_sig
1037#   define PERL_MAGIC_sig            'S'
1038#endif
1039
1040#ifndef PERL_MAGIC_sigelem
1041#   define PERL_MAGIC_sigelem        's'
1042#endif
1043
1044#ifndef PERL_MAGIC_taint
1045#   define PERL_MAGIC_taint          't'
1046#endif
1047
1048#ifndef PERL_MAGIC_uvar
1049#   define PERL_MAGIC_uvar           'U'
1050#endif
1051
1052#ifndef PERL_MAGIC_uvar_elem
1053#   define PERL_MAGIC_uvar_elem      'u'
1054#endif
1055
1056#ifndef PERL_MAGIC_vstring
1057#   define PERL_MAGIC_vstring        'V'
1058#endif
1059
1060#ifndef PERL_MAGIC_vec
1061#   define PERL_MAGIC_vec            'v'
1062#endif
1063
1064#ifndef PERL_MAGIC_utf8
1065#   define PERL_MAGIC_utf8           'w'
1066#endif
1067
1068#ifndef PERL_MAGIC_substr
1069#   define PERL_MAGIC_substr         'x'
1070#endif
1071
1072#ifndef PERL_MAGIC_defelem
1073#   define PERL_MAGIC_defelem        'y'
1074#endif
1075
1076#ifndef PERL_MAGIC_glob
1077#   define PERL_MAGIC_glob           '*'
1078#endif
1079
1080#ifndef PERL_MAGIC_arylen
1081#   define PERL_MAGIC_arylen         '#'
1082#endif
1083
1084#ifndef PERL_MAGIC_pos
1085#   define PERL_MAGIC_pos            '.'
1086#endif
1087
1088#ifndef PERL_MAGIC_backref
1089#   define PERL_MAGIC_backref        '<'
1090#endif
1091
1092#ifndef PERL_MAGIC_ext
1093#   define PERL_MAGIC_ext            '~'
1094#endif
1095
1096#endif /* _P_P_PORTABILITY_H_ */
1097
1098/* End of File ppport.h */
1099