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f4a2945e |
1 | /* Copyright (c) 1997-2000 Graham Barr <gbarr@pobox.com>. All rights reserved. |
2 | * This program is free software; you can redistribute it and/or |
3 | * modify it under the same terms as Perl itself. |
4 | */ |
5 | |
6 | #include <EXTERN.h> |
7 | #include <perl.h> |
8 | #include <XSUB.h> |
f4a2945e |
9 | |
92731555 |
10 | #ifndef PERL_VERSION |
97605c51 |
11 | # include <patchlevel.h> |
12 | # if !(defined(PERL_VERSION) || (SUBVERSION > 0 && defined(PATCHLEVEL))) |
13 | # include <could_not_find_Perl_patchlevel.h> |
14 | # endif |
92731555 |
15 | # define PERL_REVISION 5 |
16 | # define PERL_VERSION PATCHLEVEL |
17 | # define PERL_SUBVERSION SUBVERSION |
18 | #endif |
19 | |
1bfb5477 |
20 | #ifndef aTHX |
21 | # define aTHX |
9c3c560b |
22 | # define pTHX |
23 | #endif |
24 | |
25 | /* Some platforms have strict exports. And before 5.7.3 cxinc (or Perl_cxinc) |
26 | was not exported. Therefore platforms like win32, VMS etc have problems |
27 | so we redefine it here -- GMB |
28 | */ |
29 | #if PERL_VERSION < 7 |
30 | /* Not in 5.6.1. */ |
31 | # define SvUOK(sv) SvIOK_UV(sv) |
32 | # ifdef cxinc |
33 | # undef cxinc |
34 | # endif |
35 | # define cxinc() my_cxinc(aTHX) |
36 | static I32 |
37 | my_cxinc(pTHX) |
38 | { |
39 | cxstack_max = cxstack_max * 3 / 2; |
40 | Renew(cxstack, cxstack_max + 1, struct context); /* XXX should fix CXINC macro */ |
41 | return cxstack_ix + 1; |
42 | } |
1bfb5477 |
43 | #endif |
44 | |
45 | #if PERL_VERSION < 6 |
46 | # define NV double |
47 | #endif |
48 | |
60f3865b |
49 | #ifdef SVf_IVisUV |
b9ae0a2d |
50 | # define slu_sv_value(sv) (SvIOK(sv)) ? (SvIOK_UV(sv)) ? (NV)(SvUVX(sv)) : (NV)(SvIVX(sv)) : (SvNV(sv)) |
60f3865b |
51 | #else |
aaaf1885 |
52 | # define slu_sv_value(sv) (SvIOK(sv)) ? (NV)(SvIVX(sv)) : (SvNV(sv)) |
60f3865b |
53 | #endif |
54 | |
1bfb5477 |
55 | #ifndef Drand01 |
56 | # define Drand01() ((rand() & 0x7FFF) / (double) ((unsigned long)1 << 15)) |
57 | #endif |
58 | |
92731555 |
59 | #if PERL_VERSION < 5 |
f4a2945e |
60 | # ifndef gv_stashpvn |
61 | # define gv_stashpvn(n,l,c) gv_stashpv(n,c) |
62 | # endif |
63 | # ifndef SvTAINTED |
64 | |
65 | static bool |
66 | sv_tainted(SV *sv) |
67 | { |
68 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
69 | MAGIC *mg = mg_find(sv, 't'); |
70 | if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) |
71 | return TRUE; |
72 | } |
73 | return FALSE; |
74 | } |
75 | |
76 | # define SvTAINTED_on(sv) sv_magic((sv), Nullsv, 't', Nullch, 0) |
77 | # define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv)) |
78 | # endif |
79 | # define PL_defgv defgv |
80 | # define PL_op op |
81 | # define PL_curpad curpad |
82 | # define CALLRUNOPS runops |
83 | # define PL_curpm curpm |
84 | # define PL_sv_undef sv_undef |
85 | # define PERL_CONTEXT struct context |
86 | #endif |
92731555 |
87 | #if (PERL_VERSION < 5) || (PERL_VERSION == 5 && PERL_SUBVERSION <50) |
f4a2945e |
88 | # ifndef PL_tainting |
89 | # define PL_tainting tainting |
90 | # endif |
91 | # ifndef PL_stack_base |
92 | # define PL_stack_base stack_base |
93 | # endif |
94 | # ifndef PL_stack_sp |
95 | # define PL_stack_sp stack_sp |
96 | # endif |
97 | # ifndef PL_ppaddr |
98 | # define PL_ppaddr ppaddr |
99 | # endif |
100 | #endif |
101 | |
9e7deb6c |
102 | #ifndef PTR2UV |
103 | # define PTR2UV(ptr) (UV)(ptr) |
60f3865b |
104 | #endif |
105 | |
27da23d5 |
106 | #ifdef HASATTRIBUTE |
107 | # if (defined(__GNUC__) && defined(__cplusplus)) || defined(__INTEL_COMPILER) |
108 | # define PERL_UNUSED_DECL |
109 | # else |
110 | # define PERL_UNUSED_DECL __attribute__((unused)) |
111 | # endif |
112 | #else |
113 | # define PERL_UNUSED_DECL |
114 | #endif |
115 | |
116 | #ifndef dNOOP |
117 | #define dNOOP extern int Perl___notused PERL_UNUSED_DECL |
118 | #endif |
119 | |
120 | #ifndef dVAR |
121 | #define dVAR dNOOP |
122 | #endif |
123 | |
f4a2945e |
124 | MODULE=List::Util PACKAGE=List::Util |
125 | |
126 | void |
127 | min(...) |
128 | PROTOTYPE: @ |
129 | ALIAS: |
130 | min = 0 |
131 | max = 1 |
132 | CODE: |
133 | { |
134 | int index; |
135 | NV retval; |
136 | SV *retsv; |
137 | if(!items) { |
138 | XSRETURN_UNDEF; |
139 | } |
140 | retsv = ST(0); |
60f3865b |
141 | retval = slu_sv_value(retsv); |
f4a2945e |
142 | for(index = 1 ; index < items ; index++) { |
143 | SV *stacksv = ST(index); |
60f3865b |
144 | NV val = slu_sv_value(stacksv); |
f4a2945e |
145 | if(val < retval ? !ix : ix) { |
146 | retsv = stacksv; |
147 | retval = val; |
148 | } |
149 | } |
150 | ST(0) = retsv; |
151 | XSRETURN(1); |
152 | } |
153 | |
154 | |
155 | |
156 | NV |
157 | sum(...) |
158 | PROTOTYPE: @ |
159 | CODE: |
160 | { |
60f3865b |
161 | SV *sv; |
f4a2945e |
162 | int index; |
f4a2945e |
163 | if(!items) { |
164 | XSRETURN_UNDEF; |
165 | } |
60f3865b |
166 | sv = ST(0); |
167 | RETVAL = slu_sv_value(sv); |
f4a2945e |
168 | for(index = 1 ; index < items ; index++) { |
60f3865b |
169 | sv = ST(index); |
170 | RETVAL += slu_sv_value(sv); |
f4a2945e |
171 | } |
172 | } |
173 | OUTPUT: |
174 | RETVAL |
175 | |
176 | |
177 | void |
178 | minstr(...) |
179 | PROTOTYPE: @ |
180 | ALIAS: |
181 | minstr = 2 |
182 | maxstr = 0 |
183 | CODE: |
184 | { |
185 | SV *left; |
186 | int index; |
187 | if(!items) { |
188 | XSRETURN_UNDEF; |
189 | } |
190 | /* |
191 | sv_cmp & sv_cmp_locale return 1,0,-1 for gt,eq,lt |
192 | so we set ix to the value we are looking for |
193 | xsubpp does not allow -ve values, so we start with 0,2 and subtract 1 |
194 | */ |
195 | ix -= 1; |
196 | left = ST(0); |
197 | #ifdef OPpLOCALE |
198 | if(MAXARG & OPpLOCALE) { |
199 | for(index = 1 ; index < items ; index++) { |
200 | SV *right = ST(index); |
201 | if(sv_cmp_locale(left, right) == ix) |
202 | left = right; |
203 | } |
204 | } |
205 | else { |
206 | #endif |
207 | for(index = 1 ; index < items ; index++) { |
208 | SV *right = ST(index); |
209 | if(sv_cmp(left, right) == ix) |
210 | left = right; |
211 | } |
212 | #ifdef OPpLOCALE |
213 | } |
214 | #endif |
215 | ST(0) = left; |
216 | XSRETURN(1); |
217 | } |
218 | |
219 | |
220 | |
221 | void |
222 | reduce(block,...) |
223 | SV * block |
224 | PROTOTYPE: &@ |
225 | CODE: |
226 | { |
27da23d5 |
227 | dVAR; |
09c2a9b8 |
228 | SV *ret = sv_newmortal(); |
f4a2945e |
229 | int index; |
f4a2945e |
230 | GV *agv,*bgv,*gv; |
231 | HV *stash; |
232 | CV *cv; |
233 | OP *reducecop; |
1bfb5477 |
234 | PERL_CONTEXT *cx; |
235 | SV** newsp; |
236 | I32 gimme = G_SCALAR; |
c5661c80 |
237 | U8 hasargs = 0; |
1bfb5477 |
238 | bool oldcatch = CATCH_GET; |
239 | |
f4a2945e |
240 | if(items <= 1) { |
241 | XSRETURN_UNDEF; |
242 | } |
243 | agv = gv_fetchpv("a", TRUE, SVt_PV); |
244 | bgv = gv_fetchpv("b", TRUE, SVt_PV); |
245 | SAVESPTR(GvSV(agv)); |
246 | SAVESPTR(GvSV(bgv)); |
09c2a9b8 |
247 | GvSV(agv) = ret; |
f4a2945e |
248 | cv = sv_2cv(block, &stash, &gv, 0); |
249 | reducecop = CvSTART(cv); |
250 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
251 | CvROOT(cv)->op_ppaddr = PL_ppaddr[OP_NULL]; |
f3548bdc |
252 | #ifdef PAD_SET_CUR |
253 | PAD_SET_CUR(CvPADLIST(cv),1); |
254 | #else |
f4a2945e |
255 | SAVESPTR(PL_curpad); |
256 | PL_curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
f3548bdc |
257 | #endif |
f4a2945e |
258 | SAVETMPS; |
259 | SAVESPTR(PL_op); |
09c2a9b8 |
260 | SvSetSV(ret, ST(1)); |
1bfb5477 |
261 | CATCH_SET(TRUE); |
60f3865b |
262 | PUSHBLOCK(cx, CXt_SUB, SP); |
263 | PUSHSUB(cx); |
f4a2945e |
264 | for(index = 2 ; index < items ; index++) { |
f4a2945e |
265 | GvSV(bgv) = ST(index); |
266 | PL_op = reducecop; |
da53b6b0 |
267 | CALLRUNOPS(aTHX); |
09c2a9b8 |
268 | SvSetSV(ret, *PL_stack_sp); |
f4a2945e |
269 | } |
09c2a9b8 |
270 | ST(0) = ret; |
1bfb5477 |
271 | POPBLOCK(cx,PL_curpm); |
49ce4d31 |
272 | LEAVESUB(cv); |
1bfb5477 |
273 | CATCH_SET(oldcatch); |
f4a2945e |
274 | XSRETURN(1); |
275 | } |
276 | |
277 | void |
278 | first(block,...) |
279 | SV * block |
280 | PROTOTYPE: &@ |
281 | CODE: |
282 | { |
27da23d5 |
283 | dVAR; |
f4a2945e |
284 | int index; |
f4a2945e |
285 | GV *gv; |
286 | HV *stash; |
287 | CV *cv; |
288 | OP *reducecop; |
1bfb5477 |
289 | PERL_CONTEXT *cx; |
290 | SV** newsp; |
291 | I32 gimme = G_SCALAR; |
c5661c80 |
292 | U8 hasargs = 0; |
1bfb5477 |
293 | bool oldcatch = CATCH_GET; |
294 | |
f4a2945e |
295 | if(items <= 1) { |
296 | XSRETURN_UNDEF; |
297 | } |
298 | SAVESPTR(GvSV(PL_defgv)); |
299 | cv = sv_2cv(block, &stash, &gv, 0); |
300 | reducecop = CvSTART(cv); |
301 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
302 | CvROOT(cv)->op_ppaddr = PL_ppaddr[OP_NULL]; |
f3548bdc |
303 | #ifdef PAD_SET_CUR |
304 | PAD_SET_CUR(CvPADLIST(cv),1); |
305 | #else |
f4a2945e |
306 | SAVESPTR(PL_curpad); |
307 | PL_curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
f3548bdc |
308 | #endif |
f4a2945e |
309 | SAVETMPS; |
310 | SAVESPTR(PL_op); |
1bfb5477 |
311 | CATCH_SET(TRUE); |
60f3865b |
312 | PUSHBLOCK(cx, CXt_SUB, SP); |
313 | PUSHSUB(cx); |
60f3865b |
314 | |
f4a2945e |
315 | for(index = 1 ; index < items ; index++) { |
316 | GvSV(PL_defgv) = ST(index); |
317 | PL_op = reducecop; |
da53b6b0 |
318 | CALLRUNOPS(aTHX); |
f4a2945e |
319 | if (SvTRUE(*PL_stack_sp)) { |
320 | ST(0) = ST(index); |
1bfb5477 |
321 | POPBLOCK(cx,PL_curpm); |
49ce4d31 |
322 | LEAVESUB(cv); |
1bfb5477 |
323 | CATCH_SET(oldcatch); |
f4a2945e |
324 | XSRETURN(1); |
325 | } |
326 | } |
1bfb5477 |
327 | POPBLOCK(cx,PL_curpm); |
49ce4d31 |
328 | LEAVESUB(cv); |
1bfb5477 |
329 | CATCH_SET(oldcatch); |
f4a2945e |
330 | XSRETURN_UNDEF; |
331 | } |
332 | |
1bfb5477 |
333 | void |
334 | shuffle(...) |
335 | PROTOTYPE: @ |
336 | CODE: |
337 | { |
27da23d5 |
338 | dVAR; |
1bfb5477 |
339 | int index; |
340 | struct op dmy_op; |
341 | struct op *old_op = PL_op; |
1bfb5477 |
342 | |
c29e891d |
343 | /* We call pp_rand here so that Drand01 get initialized if rand() |
344 | or srand() has not already been called |
345 | */ |
1bfb5477 |
346 | memzero((char*)(&dmy_op), sizeof(struct op)); |
f3548bdc |
347 | /* we let pp_rand() borrow the TARG allocated for this XS sub */ |
348 | dmy_op.op_targ = PL_op->op_targ; |
1bfb5477 |
349 | PL_op = &dmy_op; |
20d72259 |
350 | (void)*(PL_ppaddr[OP_RAND])(aTHX); |
1bfb5477 |
351 | PL_op = old_op; |
1bfb5477 |
352 | for (index = items ; index > 1 ; ) { |
353 | int swap = (int)(Drand01() * (double)(index--)); |
354 | SV *tmp = ST(swap); |
355 | ST(swap) = ST(index); |
356 | ST(index) = tmp; |
357 | } |
358 | XSRETURN(items); |
359 | } |
360 | |
361 | |
f4a2945e |
362 | MODULE=List::Util PACKAGE=Scalar::Util |
363 | |
364 | void |
365 | dualvar(num,str) |
366 | SV * num |
367 | SV * str |
368 | PROTOTYPE: $$ |
369 | CODE: |
370 | { |
371 | STRLEN len; |
372 | char *ptr = SvPV(str,len); |
373 | ST(0) = sv_newmortal(); |
9c5ffd7c |
374 | (void)SvUPGRADE(ST(0),SVt_PVNV); |
f4a2945e |
375 | sv_setpvn(ST(0),ptr,len); |
1bfb5477 |
376 | if(SvNOK(num) || SvPOK(num) || SvMAGICAL(num)) { |
9d6ce603 |
377 | SvNV_set(ST(0), SvNV(num)); |
f4a2945e |
378 | SvNOK_on(ST(0)); |
379 | } |
1bfb5477 |
380 | #ifdef SVf_IVisUV |
381 | else if (SvUOK(num)) { |
607fa7f2 |
382 | SvUV_set(ST(0), SvUV(num)); |
1bfb5477 |
383 | SvIOK_on(ST(0)); |
384 | SvIsUV_on(ST(0)); |
385 | } |
386 | #endif |
f4a2945e |
387 | else { |
45977657 |
388 | SvIV_set(ST(0), SvIV(num)); |
f4a2945e |
389 | SvIOK_on(ST(0)); |
390 | } |
391 | if(PL_tainting && (SvTAINTED(num) || SvTAINTED(str))) |
392 | SvTAINTED_on(ST(0)); |
393 | XSRETURN(1); |
394 | } |
395 | |
396 | char * |
397 | blessed(sv) |
398 | SV * sv |
399 | PROTOTYPE: $ |
400 | CODE: |
401 | { |
402 | if (SvMAGICAL(sv)) |
403 | mg_get(sv); |
404 | if(!sv_isobject(sv)) { |
405 | XSRETURN_UNDEF; |
406 | } |
407 | RETVAL = sv_reftype(SvRV(sv),TRUE); |
408 | } |
409 | OUTPUT: |
410 | RETVAL |
411 | |
412 | char * |
413 | reftype(sv) |
414 | SV * sv |
415 | PROTOTYPE: $ |
416 | CODE: |
417 | { |
418 | if (SvMAGICAL(sv)) |
419 | mg_get(sv); |
420 | if(!SvROK(sv)) { |
421 | XSRETURN_UNDEF; |
422 | } |
423 | RETVAL = sv_reftype(SvRV(sv),FALSE); |
424 | } |
425 | OUTPUT: |
426 | RETVAL |
427 | |
bd1e762a |
428 | UV |
60f3865b |
429 | refaddr(sv) |
430 | SV * sv |
431 | PROTOTYPE: $ |
432 | CODE: |
433 | { |
4579700c |
434 | if (SvMAGICAL(sv)) |
435 | mg_get(sv); |
60f3865b |
436 | if(!SvROK(sv)) { |
437 | XSRETURN_UNDEF; |
438 | } |
bd1e762a |
439 | RETVAL = PTR2UV(SvRV(sv)); |
60f3865b |
440 | } |
441 | OUTPUT: |
442 | RETVAL |
443 | |
f4a2945e |
444 | void |
445 | weaken(sv) |
446 | SV *sv |
447 | PROTOTYPE: $ |
448 | CODE: |
449 | #ifdef SvWEAKREF |
450 | sv_rvweaken(sv); |
451 | #else |
452 | croak("weak references are not implemented in this release of perl"); |
453 | #endif |
454 | |
c6c619a9 |
455 | void |
f4a2945e |
456 | isweak(sv) |
457 | SV *sv |
458 | PROTOTYPE: $ |
459 | CODE: |
460 | #ifdef SvWEAKREF |
461 | ST(0) = boolSV(SvROK(sv) && SvWEAKREF(sv)); |
462 | XSRETURN(1); |
463 | #else |
464 | croak("weak references are not implemented in this release of perl"); |
465 | #endif |
466 | |
467 | int |
468 | readonly(sv) |
469 | SV *sv |
470 | PROTOTYPE: $ |
471 | CODE: |
472 | RETVAL = SvREADONLY(sv); |
473 | OUTPUT: |
474 | RETVAL |
475 | |
476 | int |
477 | tainted(sv) |
478 | SV *sv |
479 | PROTOTYPE: $ |
480 | CODE: |
481 | RETVAL = SvTAINTED(sv); |
482 | OUTPUT: |
483 | RETVAL |
484 | |
60f3865b |
485 | void |
486 | isvstring(sv) |
487 | SV *sv |
488 | PROTOTYPE: $ |
489 | CODE: |
490 | #ifdef SvVOK |
491 | ST(0) = boolSV(SvVOK(sv)); |
492 | XSRETURN(1); |
493 | #else |
494 | croak("vstrings are not implemented in this release of perl"); |
495 | #endif |
496 | |
9e7deb6c |
497 | int |
498 | looks_like_number(sv) |
499 | SV *sv |
500 | PROTOTYPE: $ |
501 | CODE: |
502 | RETVAL = looks_like_number(sv); |
503 | OUTPUT: |
504 | RETVAL |
505 | |
c5661c80 |
506 | void |
97605c51 |
507 | set_prototype(subref, proto) |
508 | SV *subref |
509 | SV *proto |
510 | PROTOTYPE: &$ |
511 | CODE: |
512 | { |
513 | if (SvROK(subref)) { |
514 | SV *sv = SvRV(subref); |
515 | if (SvTYPE(sv) != SVt_PVCV) { |
516 | /* not a subroutine reference */ |
517 | croak("set_prototype: not a subroutine reference"); |
518 | } |
519 | if (SvPOK(proto)) { |
520 | /* set the prototype */ |
521 | STRLEN len; |
522 | char *ptr = SvPV(proto, len); |
523 | sv_setpvn(sv, ptr, len); |
524 | } |
525 | else { |
526 | /* delete the prototype */ |
527 | SvPOK_off(sv); |
528 | } |
529 | } |
530 | else { |
531 | croak("set_prototype: not a reference"); |
532 | } |
533 | XSRETURN(1); |
534 | } |
60f3865b |
535 | |
f4a2945e |
536 | BOOT: |
537 | { |
60f3865b |
538 | #if !defined(SvWEAKREF) || !defined(SvVOK) |
f4a2945e |
539 | HV *stash = gv_stashpvn("Scalar::Util", 12, TRUE); |
540 | GV *vargv = *(GV**)hv_fetch(stash, "EXPORT_FAIL", 11, TRUE); |
541 | AV *varav; |
542 | if (SvTYPE(vargv) != SVt_PVGV) |
543 | gv_init(vargv, stash, "Scalar::Util", 12, TRUE); |
544 | varav = GvAVn(vargv); |
60f3865b |
545 | #endif |
546 | #ifndef SvWEAKREF |
f4a2945e |
547 | av_push(varav, newSVpv("weaken",6)); |
548 | av_push(varav, newSVpv("isweak",6)); |
549 | #endif |
60f3865b |
550 | #ifndef SvVOK |
551 | av_push(varav, newSVpv("isvstring",9)); |
552 | #endif |
f4a2945e |
553 | } |