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;
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 #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
284 typedef 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)
newRV_noinc(SV * sv)349 static 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)
368 static
369 #else
370 extern void newCONSTSUB(HV * stash, char * name, SV *sv);
371 #endif
372
373 #if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
374 void
newCONSTSUB(stash,name,sv)375 newCONSTSUB(stash,name,sv)
376 HV *stash;
377 char *name;
378 SV *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 *
my_sv_2pvbyte(pTHX_ register SV * sv,STRLEN * lp)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 *
sv_2pv_nolen(pTHX_ register SV * sv)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
_grok_hex(char * string,STRLEN * len,I32 * flags,NV * result)634 static 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
_grok_oct(char * string,STRLEN * len,I32 * flags,NV * result)649 static 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)
_grok_bin(char * string,STRLEN * len,I32 * flags,NV * result)664 static 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
706 bool
Perl_grok_numeric_radix(pTHX_ const char ** sp,const char * send)707 Perl_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
748 int
Perl_grok_number(pTHX_ const char * pv,STRLEN len,UV * valuep)749 Perl_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