1 
2 /* ppport.h -- Perl/Pollution/Portability Version 2.011
3  *
4  * Automatically Created by Devel::PPPort on Fri Feb 25 09:38:30 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;
85 foreach (<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 }
92 foreach $filename (map(glob($_),@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 #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 
239 #ifndef dTHR
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
282 typedef 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
293 #  else
294 #    define PTRV                unsigned
295 #  endif
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)
306 #endif
307 
308 #endif /* !INT2PTR */
309 
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 
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 
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
346 #    if defined(USE_THREADS)
newRV_noinc(SV * sv)347 static 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)    \
355         (PL_Sv=(SV*)newRV(sv), SvREFCNT_dec(sv), (SV*)PL_Sv)
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)
366 static
367 #else
368 extern void newCONSTSUB(HV * stash, char * name, SV *sv);
369 #endif
370 
371 #if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
372 void
newCONSTSUB(stash,name,sv)373 newCONSTSUB(stash,name,sv)
374 HV *stash;
375 char *name;
376 SV *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 
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 *
my_sv_2pvbyte(pTHX_ register SV * sv,STRLEN * lp)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 *
sv_2pv_nolen(pTHX_ register SV * sv)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
_grok_hex(char * string,STRLEN * len,I32 * flags,NV * result)632 static 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
_grok_oct(char * string,STRLEN * len,I32 * flags,NV * result)647 static 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)
_grok_bin(char * string,STRLEN * len,I32 * flags,NV * result)662 static 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 bool
Perl_grok_numeric_radix(pTHX_ const char ** sp,const char * send)705 Perl_grok_numeric_radix(pTHX_ const char **sp, const char *send)
706 {
707 #ifdef USE_LOCALE_NUMERIC
708 #if (PERL_VERSION > 6) || ((PERL_VERSION == 6) && (PERL_SUBVERSION >= 1))
709     if (PL_numeric_radix_sv && IN_LOCALE) {
710         STRLEN len;
711         char* radix = SvPV(PL_numeric_radix_sv, len);
712         if (*sp + len <= send && memEQ(*sp, radix, len)) {
713             *sp += len;
714             return TRUE;
715         }
716     }
717 #else
718     /* pre5.6.0 perls don't have PL_numeric_radix_sv so the radix
719      * must manually be requested from locale.h */
720 #include <locale.h>
721     struct lconv *lc = localeconv();
722     char *radix = lc->decimal_point;
723     if (radix && IN_LOCALE) {
724         STRLEN len = strlen(radix);
725         if (*sp + len <= send && memEQ(*sp, radix, len)) {
726             *sp += len;
727             return TRUE;
728         }
729     }
730 #endif /* PERL_VERSION */
731 #endif /* USE_LOCALE_NUMERIC */
732     /* always try "." if numeric radix didn't match because
733      * we may have data from different locales mixed */
734     if (*sp < send && **sp == '.') {
735         ++*sp;
736         return TRUE;
737     }
738     return FALSE;
739 }
740 #endif /* grok_numeric_radix */
741 
742 #ifndef grok_number
743 
744 #define grok_number Perl_grok_number
745 
746 int
Perl_grok_number(pTHX_ const char * pv,STRLEN len,UV * valuep)747 Perl_grok_number(pTHX_ const char *pv, STRLEN len, UV *valuep)
748 {
749   const char *s = pv;
750   const char *send = pv + len;
751   const UV max_div_10 = UV_MAX / 10;
752   const char max_mod_10 = UV_MAX % 10;
753   int numtype = 0;
754   int sawinf = 0;
755   int sawnan = 0;
756 
757   while (s < send && isSPACE(*s))
758     s++;
759   if (s == send) {
760     return 0;
761   } else if (*s == '-') {
762     s++;
763     numtype = IS_NUMBER_NEG;
764   }
765   else if (*s == '+')
766   s++;
767 
768   if (s == send)
769     return 0;
770 
771   /* next must be digit or the radix separator or beginning of infinity */
772   if (isDIGIT(*s)) {
773     /* UVs are at least 32 bits, so the first 9 decimal digits cannot
774        overflow.  */
775     UV value = *s - '0';
776     /* This construction seems to be more optimiser friendly.
777        (without it gcc does the isDIGIT test and the *s - '0' separately)
778        With it gcc on arm is managing 6 instructions (6 cycles) per digit.
779        In theory the optimiser could deduce how far to unroll the loop
780        before checking for overflow.  */
781     if (++s < send) {
782       int digit = *s - '0';
783       if (digit >= 0 && digit <= 9) {
784         value = value * 10 + digit;
785         if (++s < send) {
786           digit = *s - '0';
787           if (digit >= 0 && digit <= 9) {
788             value = value * 10 + digit;
789             if (++s < send) {
790               digit = *s - '0';
791               if (digit >= 0 && digit <= 9) {
792                 value = value * 10 + digit;
793 		        if (++s < send) {
794                   digit = *s - '0';
795                   if (digit >= 0 && digit <= 9) {
796                     value = value * 10 + digit;
797                     if (++s < send) {
798                       digit = *s - '0';
799                       if (digit >= 0 && digit <= 9) {
800                         value = value * 10 + digit;
801                         if (++s < send) {
802                           digit = *s - '0';
803                           if (digit >= 0 && digit <= 9) {
804                             value = value * 10 + digit;
805                             if (++s < send) {
806                               digit = *s - '0';
807                               if (digit >= 0 && digit <= 9) {
808                                 value = value * 10 + digit;
809                                 if (++s < send) {
810                                   digit = *s - '0';
811                                   if (digit >= 0 && digit <= 9) {
812                                     value = value * 10 + digit;
813                                     if (++s < send) {
814                                       /* Now got 9 digits, so need to check
815                                          each time for overflow.  */
816                                       digit = *s - '0';
817                                       while (digit >= 0 && digit <= 9
818                                              && (value < max_div_10
819                                                  || (value == max_div_10
820                                                      && digit <= max_mod_10))) {
821                                         value = value * 10 + digit;
822                                         if (++s < send)
823                                           digit = *s - '0';
824                                         else
825                                           break;
826                                       }
827                                       if (digit >= 0 && digit <= 9
828                                           && (s < send)) {
829                                         /* value overflowed.
830                                            skip the remaining digits, don't
831                                            worry about setting *valuep.  */
832                                         do {
833                                           s++;
834                                         } while (s < send && isDIGIT(*s));
835                                         numtype |=
836                                           IS_NUMBER_GREATER_THAN_UV_MAX;
837                                         goto skip_value;
838                                       }
839                                     }
840                                   }
841 				                }
842                               }
843                             }
844                           }
845                         }
846                       }
847                     }
848                   }
849                 }
850               }
851             }
852           }
853 	    }
854       }
855     }
856     numtype |= IS_NUMBER_IN_UV;
857     if (valuep)
858       *valuep = value;
859 
860   skip_value:
861     if (GROK_NUMERIC_RADIX(&s, send)) {
862       numtype |= IS_NUMBER_NOT_INT;
863       while (s < send && isDIGIT(*s))  /* optional digits after the radix */
864         s++;
865     }
866   }
867   else if (GROK_NUMERIC_RADIX(&s, send)) {
868     numtype |= IS_NUMBER_NOT_INT | IS_NUMBER_IN_UV; /* valuep assigned below */
869     /* no digits before the radix means we need digits after it */
870     if (s < send && isDIGIT(*s)) {
871       do {
872         s++;
873       } while (s < send && isDIGIT(*s));
874       if (valuep) {
875         /* integer approximation is valid - it's 0.  */
876         *valuep = 0;
877       }
878     }
879     else
880       return 0;
881   } else if (*s == 'I' || *s == 'i') {
882     s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
883     s++; if (s == send || (*s != 'F' && *s != 'f')) return 0;
884     s++; if (s < send && (*s == 'I' || *s == 'i')) {
885       s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
886       s++; if (s == send || (*s != 'I' && *s != 'i')) return 0;
887       s++; if (s == send || (*s != 'T' && *s != 't')) return 0;
888       s++; if (s == send || (*s != 'Y' && *s != 'y')) return 0;
889       s++;
890     }
891     sawinf = 1;
892   } else if (*s == 'N' || *s == 'n') {
893     /* XXX TODO: There are signaling NaNs and quiet NaNs. */
894     s++; if (s == send || (*s != 'A' && *s != 'a')) return 0;
895     s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
896     s++;
897     sawnan = 1;
898   } else
899     return 0;
900 
901   if (sawinf) {
902     numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
903     numtype |= IS_NUMBER_INFINITY | IS_NUMBER_NOT_INT;
904   } else if (sawnan) {
905     numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
906     numtype |= IS_NUMBER_NAN | IS_NUMBER_NOT_INT;
907   } else if (s < send) {
908     /* we can have an optional exponent part */
909     if (*s == 'e' || *s == 'E') {
910       /* The only flag we keep is sign.  Blow away any "it's UV"  */
911       numtype &= IS_NUMBER_NEG;
912       numtype |= IS_NUMBER_NOT_INT;
913       s++;
914       if (s < send && (*s == '-' || *s == '+'))
915         s++;
916       if (s < send && isDIGIT(*s)) {
917         do {
918           s++;
919         } while (s < send && isDIGIT(*s));
920       }
921       else
922       return 0;
923     }
924   }
925   while (s < send && isSPACE(*s))
926     s++;
927   if (s >= send)
928     return numtype;
929   if (len == 10 && memEQ(pv, "0 but true", 10)) {
930     if (valuep)
931       *valuep = 0;
932     return IS_NUMBER_IN_UV;
933   }
934   return 0;
935 }
936 #endif /* grok_number */
937 
938 #ifndef PERL_MAGIC_sv
939 #   define PERL_MAGIC_sv             '\0'
940 #endif
941 
942 #ifndef PERL_MAGIC_overload
943 #   define PERL_MAGIC_overload       'A'
944 #endif
945 
946 #ifndef PERL_MAGIC_overload_elem
947 #   define PERL_MAGIC_overload_elem  'a'
948 #endif
949 
950 #ifndef PERL_MAGIC_overload_table
951 #   define PERL_MAGIC_overload_table 'c'
952 #endif
953 
954 #ifndef PERL_MAGIC_bm
955 #   define PERL_MAGIC_bm             'B'
956 #endif
957 
958 #ifndef PERL_MAGIC_regdata
959 #   define PERL_MAGIC_regdata        'D'
960 #endif
961 
962 #ifndef PERL_MAGIC_regdatum
963 #   define PERL_MAGIC_regdatum       'd'
964 #endif
965 
966 #ifndef PERL_MAGIC_env
967 #   define PERL_MAGIC_env            'E'
968 #endif
969 
970 #ifndef PERL_MAGIC_envelem
971 #   define PERL_MAGIC_envelem        'e'
972 #endif
973 
974 #ifndef PERL_MAGIC_fm
975 #   define PERL_MAGIC_fm             'f'
976 #endif
977 
978 #ifndef PERL_MAGIC_regex_global
979 #   define PERL_MAGIC_regex_global   'g'
980 #endif
981 
982 #ifndef PERL_MAGIC_isa
983 #   define PERL_MAGIC_isa            'I'
984 #endif
985 
986 #ifndef PERL_MAGIC_isaelem
987 #   define PERL_MAGIC_isaelem        'i'
988 #endif
989 
990 #ifndef PERL_MAGIC_nkeys
991 #   define PERL_MAGIC_nkeys          'k'
992 #endif
993 
994 #ifndef PERL_MAGIC_dbfile
995 #   define PERL_MAGIC_dbfile         'L'
996 #endif
997 
998 #ifndef PERL_MAGIC_dbline
999 #   define PERL_MAGIC_dbline         'l'
1000 #endif
1001 
1002 #ifndef PERL_MAGIC_mutex
1003 #   define PERL_MAGIC_mutex          'm'
1004 #endif
1005 
1006 #ifndef PERL_MAGIC_shared
1007 #   define PERL_MAGIC_shared         'N'
1008 #endif
1009 
1010 #ifndef PERL_MAGIC_shared_scalar
1011 #   define PERL_MAGIC_shared_scalar  'n'
1012 #endif
1013 
1014 #ifndef PERL_MAGIC_collxfrm
1015 #   define PERL_MAGIC_collxfrm       'o'
1016 #endif
1017 
1018 #ifndef PERL_MAGIC_tied
1019 #   define PERL_MAGIC_tied           'P'
1020 #endif
1021 
1022 #ifndef PERL_MAGIC_tiedelem
1023 #   define PERL_MAGIC_tiedelem       'p'
1024 #endif
1025 
1026 #ifndef PERL_MAGIC_tiedscalar
1027 #   define PERL_MAGIC_tiedscalar     'q'
1028 #endif
1029 
1030 #ifndef PERL_MAGIC_qr
1031 #   define PERL_MAGIC_qr             'r'
1032 #endif
1033 
1034 #ifndef PERL_MAGIC_sig
1035 #   define PERL_MAGIC_sig            'S'
1036 #endif
1037 
1038 #ifndef PERL_MAGIC_sigelem
1039 #   define PERL_MAGIC_sigelem        's'
1040 #endif
1041 
1042 #ifndef PERL_MAGIC_taint
1043 #   define PERL_MAGIC_taint          't'
1044 #endif
1045 
1046 #ifndef PERL_MAGIC_uvar
1047 #   define PERL_MAGIC_uvar           'U'
1048 #endif
1049 
1050 #ifndef PERL_MAGIC_uvar_elem
1051 #   define PERL_MAGIC_uvar_elem      'u'
1052 #endif
1053 
1054 #ifndef PERL_MAGIC_vstring
1055 #   define PERL_MAGIC_vstring        'V'
1056 #endif
1057 
1058 #ifndef PERL_MAGIC_vec
1059 #   define PERL_MAGIC_vec            'v'
1060 #endif
1061 
1062 #ifndef PERL_MAGIC_utf8
1063 #   define PERL_MAGIC_utf8           'w'
1064 #endif
1065 
1066 #ifndef PERL_MAGIC_substr
1067 #   define PERL_MAGIC_substr         'x'
1068 #endif
1069 
1070 #ifndef PERL_MAGIC_defelem
1071 #   define PERL_MAGIC_defelem        'y'
1072 #endif
1073 
1074 #ifndef PERL_MAGIC_glob
1075 #   define PERL_MAGIC_glob           '*'
1076 #endif
1077 
1078 #ifndef PERL_MAGIC_arylen
1079 #   define PERL_MAGIC_arylen         '#'
1080 #endif
1081 
1082 #ifndef PERL_MAGIC_pos
1083 #   define PERL_MAGIC_pos            '.'
1084 #endif
1085 
1086 #ifndef PERL_MAGIC_backref
1087 #   define PERL_MAGIC_backref        '<'
1088 #endif
1089 
1090 #ifndef PERL_MAGIC_ext
1091 #   define PERL_MAGIC_ext            '~'
1092 #endif
1093 
1094 #endif /* _P_P_PORTABILITY_H_ */
1095 
1096 /* End of File ppport.h */
1097