summaryrefslogtreecommitdiff
path: root/gnu/usr.bin/perl/mathoms.c
blob: a48777dd51161fe0861d95129ca7aca6c03764a3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
/*    mathoms.c
 *
 *    Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010,
 *    2011, 2012 by Larry Wall and others
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 *
 */

/*
 *  Anything that Hobbits had no immediate use for, but were unwilling to
 *  throw away, they called a mathom.  Their dwellings were apt to become
 *  rather crowded with mathoms, and many of the presents that passed from
 *  hand to hand were of that sort.
 *
 *     [p.5 of _The Lord of the Rings_: "Prologue"]
 */



/* 
 * This file contains mathoms, various binary artifacts from previous
 * versions of Perl.  For binary or source compatibility reasons, though,
 * we cannot completely remove them from the core code.  
 *
 * SMP - Oct. 24, 2005
 *
 */

#include "EXTERN.h"
#define PERL_IN_MATHOMS_C
#include "perl.h"

#ifdef NO_MATHOMS
/* ..." warning: ISO C forbids an empty source file"
   So make sure we have something in here by processing the headers anyway.
 */
#else

PERL_CALLCONV OP * Perl_ref(pTHX_ OP *o, I32 type);
PERL_CALLCONV void Perl_sv_unref(pTHX_ SV *sv);
PERL_CALLCONV void Perl_sv_taint(pTHX_ SV *sv);
PERL_CALLCONV IV Perl_sv_2iv(pTHX_ register SV *sv);
PERL_CALLCONV UV Perl_sv_2uv(pTHX_ register SV *sv);
PERL_CALLCONV NV Perl_sv_2nv(pTHX_ register SV *sv);
PERL_CALLCONV char * Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp);
PERL_CALLCONV char * Perl_sv_2pv_nolen(pTHX_ register SV *sv);
PERL_CALLCONV char * Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv);
PERL_CALLCONV char * Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv);
PERL_CALLCONV void Perl_sv_force_normal(pTHX_ register SV *sv);
PERL_CALLCONV void Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr);
PERL_CALLCONV void Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen);
PERL_CALLCONV void Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len);
PERL_CALLCONV void Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr);
PERL_CALLCONV void Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv);
PERL_CALLCONV char * Perl_sv_pv(pTHX_ SV *sv);
PERL_CALLCONV char * Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp);
PERL_CALLCONV char * Perl_sv_pvbyte(pTHX_ SV *sv);
PERL_CALLCONV char * Perl_sv_pvutf8(pTHX_ SV *sv);
PERL_CALLCONV STRLEN Perl_sv_utf8_upgrade(pTHX_ register SV *sv);
PERL_CALLCONV NV Perl_huge(void);
PERL_CALLCONV void Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix);
PERL_CALLCONV void Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix);
PERL_CALLCONV GV * Perl_gv_fetchmethod(pTHX_ HV *stash, const char *name);
PERL_CALLCONV HE * Perl_hv_iternext(pTHX_ HV *hv);
PERL_CALLCONV void Perl_hv_magic(pTHX_ HV *hv, GV *gv, int how);
PERL_CALLCONV bool Perl_do_open(pTHX_ GV *gv, register const char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp);
PERL_CALLCONV bool Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp);
PERL_CALLCONV U8 * Perl_uvuni_to_utf8(pTHX_ U8 *d, UV uv);
PERL_CALLCONV bool Perl_is_utf8_string_loc(pTHX_ const U8 *s, STRLEN len, const U8 **ep);
PERL_CALLCONV void Perl_sv_nolocking(pTHX_ SV *sv);
PERL_CALLCONV void Perl_sv_usepvn_mg(pTHX_ SV *sv, char *ptr, STRLEN len);
PERL_CALLCONV void Perl_sv_usepvn(pTHX_ SV *sv, char *ptr, STRLEN len);
PERL_CALLCONV int Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...);
PERL_CALLCONV int Perl_printf_nocontext(const char *format, ...);
PERL_CALLCONV int Perl_magic_setglob(pTHX_ SV* sv, MAGIC* mg);
PERL_CALLCONV AV * Perl_newAV(pTHX);
PERL_CALLCONV HV * Perl_newHV(pTHX);
PERL_CALLCONV IO * Perl_newIO(pTHX);
PERL_CALLCONV I32 Perl_my_stat(pTHX);
PERL_CALLCONV I32 Perl_my_lstat(pTHX);
PERL_CALLCONV I32 Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2);
PERL_CALLCONV char * Perl_sv_collxfrm(pTHX_ SV *const sv, STRLEN *const nxp);
PERL_CALLCONV bool Perl_sv_2bool(pTHX_ register SV *const sv);
PERL_CALLCONV CV * Perl_newSUB(pTHX_ I32 floor, OP* o, OP* proto, OP* block);
PERL_CALLCONV UV Perl_to_utf8_lower(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp);
PERL_CALLCONV UV Perl_to_utf8_title(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp);
PERL_CALLCONV UV Perl_to_utf8_upper(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp);
PERL_CALLCONV UV Perl_to_utf8_fold(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp);

/* ref() is now a macro using Perl_doref;
 * this version provided for binary compatibility only.
 */
OP *
Perl_ref(pTHX_ OP *o, I32 type)
{
    return doref(o, type, TRUE);
}

/*
=for apidoc sv_unref

Unsets the RV status of the SV, and decrements the reference count of
whatever was being referenced by the RV.  This can almost be thought of
as a reversal of C<newSVrv>.  This is C<sv_unref_flags> with the C<flag>
being zero.  See C<SvROK_off>.

=cut
*/

void
Perl_sv_unref(pTHX_ SV *sv)
{
    PERL_ARGS_ASSERT_SV_UNREF;

    sv_unref_flags(sv, 0);
}

/*
=for apidoc sv_taint

Taint an SV. Use C<SvTAINTED_on> instead.

=cut
*/

void
Perl_sv_taint(pTHX_ SV *sv)
{
    PERL_ARGS_ASSERT_SV_TAINT;

    sv_magic((sv), NULL, PERL_MAGIC_taint, NULL, 0);
}

/* sv_2iv() is now a macro using Perl_sv_2iv_flags();
 * this function provided for binary compatibility only
 */

IV
Perl_sv_2iv(pTHX_ register SV *sv)
{
    return sv_2iv_flags(sv, SV_GMAGIC);
}

/* sv_2uv() is now a macro using Perl_sv_2uv_flags();
 * this function provided for binary compatibility only
 */

UV
Perl_sv_2uv(pTHX_ register SV *sv)
{
    return sv_2uv_flags(sv, SV_GMAGIC);
}

/* sv_2nv() is now a macro using Perl_sv_2nv_flags();
 * this function provided for binary compatibility only
 */

NV
Perl_sv_2nv(pTHX_ register SV *sv)
{
    return sv_2nv_flags(sv, SV_GMAGIC);
}


/* sv_2pv() is now a macro using Perl_sv_2pv_flags();
 * this function provided for binary compatibility only
 */

char *
Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp)
{
    return sv_2pv_flags(sv, lp, SV_GMAGIC);
}

/*
=for apidoc sv_2pv_nolen

Like C<sv_2pv()>, but doesn't return the length too. You should usually
use the macro wrapper C<SvPV_nolen(sv)> instead.

=cut
*/

char *
Perl_sv_2pv_nolen(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_2PV_NOLEN;
    return sv_2pv(sv, NULL);
}

/*
=for apidoc sv_2pvbyte_nolen

Return a pointer to the byte-encoded representation of the SV.
May cause the SV to be downgraded from UTF-8 as a side-effect.

Usually accessed via the C<SvPVbyte_nolen> macro.

=cut
*/

char *
Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_2PVBYTE_NOLEN;

    return sv_2pvbyte(sv, NULL);
}

/*
=for apidoc sv_2pvutf8_nolen

Return a pointer to the UTF-8-encoded representation of the SV.
May cause the SV to be upgraded to UTF-8 as a side-effect.

Usually accessed via the C<SvPVutf8_nolen> macro.

=cut
*/

char *
Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_2PVUTF8_NOLEN;

    return sv_2pvutf8(sv, NULL);
}

/*
=for apidoc sv_force_normal

Undo various types of fakery on an SV: if the PV is a shared string, make
a private copy; if we're a ref, stop refing; if we're a glob, downgrade to
an xpvmg. See also C<sv_force_normal_flags>.

=cut
*/

void
Perl_sv_force_normal(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_FORCE_NORMAL;

    sv_force_normal_flags(sv, 0);
}

/* sv_setsv() is now a macro using Perl_sv_setsv_flags();
 * this function provided for binary compatibility only
 */

void
Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr)
{
    PERL_ARGS_ASSERT_SV_SETSV;

    sv_setsv_flags(dstr, sstr, SV_GMAGIC);
}

/* sv_catpvn() is now a macro using Perl_sv_catpvn_flags();
 * this function provided for binary compatibility only
 */

void
Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen)
{
    PERL_ARGS_ASSERT_SV_CATPVN;

    sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC);
}

/*
=for apidoc sv_catpvn_mg

Like C<sv_catpvn>, but also handles 'set' magic.

=cut
*/

void
Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
{
    PERL_ARGS_ASSERT_SV_CATPVN_MG;

    sv_catpvn_flags(sv,ptr,len,SV_GMAGIC|SV_SMAGIC);
}

/* sv_catsv() is now a macro using Perl_sv_catsv_flags();
 * this function provided for binary compatibility only
 */

void
Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr)
{
    PERL_ARGS_ASSERT_SV_CATSV;

    sv_catsv_flags(dstr, sstr, SV_GMAGIC);
}

/*
=for apidoc sv_catsv_mg

Like C<sv_catsv>, but also handles 'set' magic.

=cut
*/

void
Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv)
{
    PERL_ARGS_ASSERT_SV_CATSV_MG;

    sv_catsv_flags(dsv,ssv,SV_GMAGIC|SV_SMAGIC);
}

/*
=for apidoc sv_iv

A private implementation of the C<SvIVx> macro for compilers which can't
cope with complex macro expressions. Always use the macro instead.

=cut
*/

IV
Perl_sv_iv(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_IV;

    if (SvIOK(sv)) {
	if (SvIsUV(sv))
	    return (IV)SvUVX(sv);
	return SvIVX(sv);
    }
    return sv_2iv(sv);
}

/*
=for apidoc sv_uv

A private implementation of the C<SvUVx> macro for compilers which can't
cope with complex macro expressions. Always use the macro instead.

=cut
*/

UV
Perl_sv_uv(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_UV;

    if (SvIOK(sv)) {
	if (SvIsUV(sv))
	    return SvUVX(sv);
	return (UV)SvIVX(sv);
    }
    return sv_2uv(sv);
}

/*
=for apidoc sv_nv

A private implementation of the C<SvNVx> macro for compilers which can't
cope with complex macro expressions. Always use the macro instead.

=cut
*/

NV
Perl_sv_nv(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_NV;

    if (SvNOK(sv))
	return SvNVX(sv);
    return sv_2nv(sv);
}

/*
=for apidoc sv_pv

Use the C<SvPV_nolen> macro instead

=for apidoc sv_pvn

A private implementation of the C<SvPV> macro for compilers which can't
cope with complex macro expressions. Always use the macro instead.

=cut
*/

char *
Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp)
{
    PERL_ARGS_ASSERT_SV_PVN;

    if (SvPOK(sv)) {
	*lp = SvCUR(sv);
	return SvPVX(sv);
    }
    return sv_2pv(sv, lp);
}


char *
Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp)
{
    PERL_ARGS_ASSERT_SV_PVN_NOMG;

    if (SvPOK(sv)) {
	*lp = SvCUR(sv);
	return SvPVX(sv);
    }
    return sv_2pv_flags(sv, lp, 0);
}

/* sv_pv() is now a macro using SvPV_nolen();
 * this function provided for binary compatibility only
 */

char *
Perl_sv_pv(pTHX_ SV *sv)
{
    PERL_ARGS_ASSERT_SV_PV;

    if (SvPOK(sv))
        return SvPVX(sv);

    return sv_2pv(sv, NULL);
}

/* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags();
 * this function provided for binary compatibility only
 */

char *
Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
{
    PERL_ARGS_ASSERT_SV_PVN_FORCE;

    return sv_pvn_force_flags(sv, lp, SV_GMAGIC);
}

/* sv_pvbyte () is now a macro using Perl_sv_2pv_flags();
 * this function provided for binary compatibility only
 */

char *
Perl_sv_pvbyte(pTHX_ SV *sv)
{
    PERL_ARGS_ASSERT_SV_PVBYTE;

    sv_utf8_downgrade(sv, FALSE);
    return sv_pv(sv);
}

/*
=for apidoc sv_pvbyte

Use C<SvPVbyte_nolen> instead.

=for apidoc sv_pvbyten

A private implementation of the C<SvPVbyte> macro for compilers
which can't cope with complex macro expressions. Always use the macro
instead.

=cut
*/

char *
Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp)
{
    PERL_ARGS_ASSERT_SV_PVBYTEN;

    sv_utf8_downgrade(sv, FALSE);
    return sv_pvn(sv,lp);
}

/* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags();
 * this function provided for binary compatibility only
 */

char *
Perl_sv_pvutf8(pTHX_ SV *sv)
{
    PERL_ARGS_ASSERT_SV_PVUTF8;

    sv_utf8_upgrade(sv);
    return sv_pv(sv);
}

/*
=for apidoc sv_pvutf8

Use the C<SvPVutf8_nolen> macro instead

=for apidoc sv_pvutf8n

A private implementation of the C<SvPVutf8> macro for compilers
which can't cope with complex macro expressions. Always use the macro
instead.

=cut
*/

char *
Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp)
{
    PERL_ARGS_ASSERT_SV_PVUTF8N;

    sv_utf8_upgrade(sv);
    return sv_pvn(sv,lp);
}

/* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags();
 * this function provided for binary compatibility only
 */

STRLEN
Perl_sv_utf8_upgrade(pTHX_ register SV *sv)
{
    PERL_ARGS_ASSERT_SV_UTF8_UPGRADE;

    return sv_utf8_upgrade_flags(sv, SV_GMAGIC);
}

int
Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...)
{
    dTHXs;
    va_list(arglist);

    /* Easier to special case this here than in embed.pl. (Look at what it
       generates for proto.h) */
#ifdef PERL_IMPLICIT_CONTEXT
    PERL_ARGS_ASSERT_FPRINTF_NOCONTEXT;
#endif

    va_start(arglist, format);
    return PerlIO_vprintf(stream, format, arglist);
}

int
Perl_printf_nocontext(const char *format, ...)
{
    dTHX;
    va_list(arglist);

#ifdef PERL_IMPLICIT_CONTEXT
    PERL_ARGS_ASSERT_PRINTF_NOCONTEXT;
#endif

    va_start(arglist, format);
    return PerlIO_vprintf(PerlIO_stdout(), format, arglist);
}

#if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
/*
 * This hack is to force load of "huge" support from libm.a
 * So it is in perl for (say) POSIX to use.
 * Needed for SunOS with Sun's 'acc' for example.
 */
NV
Perl_huge(void)
{
#  if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
    return HUGE_VALL;
#  else
    return HUGE_VAL;
#  endif
}
#endif

/* compatibility with versions <= 5.003. */
void
Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
{
    PERL_ARGS_ASSERT_GV_FULLNAME;

    gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
}

/* compatibility with versions <= 5.003. */
void
Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
{
    PERL_ARGS_ASSERT_GV_EFULLNAME;

    gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
}

void
Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
{
    PERL_ARGS_ASSERT_GV_FULLNAME3;

    gv_fullname4(sv, gv, prefix, TRUE);
}

void
Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
{
    PERL_ARGS_ASSERT_GV_EFULLNAME3;

    gv_efullname4(sv, gv, prefix, TRUE);
}

/*
=for apidoc gv_fetchmethod

See L</gv_fetchmethod_autoload>.

=cut
*/

GV *
Perl_gv_fetchmethod(pTHX_ HV *stash, const char *name)
{
    PERL_ARGS_ASSERT_GV_FETCHMETHOD;

    return gv_fetchmethod_autoload(stash, name, TRUE);
}

HE *
Perl_hv_iternext(pTHX_ HV *hv)
{
    PERL_ARGS_ASSERT_HV_ITERNEXT;

    return hv_iternext_flags(hv, 0);
}

void
Perl_hv_magic(pTHX_ HV *hv, GV *gv, int how)
{
    PERL_ARGS_ASSERT_HV_MAGIC;

    sv_magic(MUTABLE_SV(hv), MUTABLE_SV(gv), how, NULL, 0);
}

bool
Perl_do_open(pTHX_ GV *gv, register const char *name, I32 len, int as_raw,
	     int rawmode, int rawperm, PerlIO *supplied_fp)
{
    PERL_ARGS_ASSERT_DO_OPEN;

    return do_openn(gv, name, len, as_raw, rawmode, rawperm,
		    supplied_fp, (SV **) NULL, 0);
}

bool
Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int 
as_raw,
              int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
              I32 num_svs)
{
    PERL_ARGS_ASSERT_DO_OPEN9;

    PERL_UNUSED_ARG(num_svs);
    return do_openn(gv, name, len, as_raw, rawmode, rawperm,
                    supplied_fp, &svs, 1);
}

int
Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
{
 /* The old body of this is now in non-LAYER part of perlio.c
  * This is a stub for any XS code which might have been calling it.
  */
 const char *name = ":raw";

 PERL_ARGS_ASSERT_DO_BINMODE;

#ifdef PERLIO_USING_CRLF
 if (!(mode & O_BINARY))
     name = ":crlf";
#endif
 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
}

#ifndef OS2
bool
Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp)
{
    PERL_ARGS_ASSERT_DO_AEXEC;

    return do_aexec5(really, mark, sp, 0, 0);
}
#endif

/* Backwards compatibility. */
int
Perl_init_i18nl14n(pTHX_ int printwarn)
{
    return init_i18nl10n(printwarn);
}

U8 *
Perl_uvuni_to_utf8(pTHX_ U8 *d, UV uv)
{
    PERL_ARGS_ASSERT_UVUNI_TO_UTF8;

    return Perl_uvuni_to_utf8_flags(aTHX_ d, uv, 0);
}

bool
Perl_is_utf8_string_loc(pTHX_ const U8 *s, STRLEN len, const U8 **ep)
{
    PERL_ARGS_ASSERT_IS_UTF8_STRING_LOC;

    return is_utf8_string_loclen(s, len, ep, 0);
}

/*
=for apidoc sv_nolocking

Dummy routine which "locks" an SV when there is no locking module present.
Exists to avoid test for a NULL function pointer and because it could
potentially warn under some level of strict-ness.

"Superseded" by sv_nosharing().

=cut
*/

void
Perl_sv_nolocking(pTHX_ SV *sv)
{
    PERL_UNUSED_CONTEXT;
    PERL_UNUSED_ARG(sv);
}


/*
=for apidoc sv_nounlocking

Dummy routine which "unlocks" an SV when there is no locking module present.
Exists to avoid test for a NULL function pointer and because it could
potentially warn under some level of strict-ness.

"Superseded" by sv_nosharing().

=cut
*/

void
Perl_sv_nounlocking(pTHX_ SV *sv)
{
    PERL_UNUSED_CONTEXT;
    PERL_UNUSED_ARG(sv);
}

void
Perl_save_long(pTHX_ long int *longp)
{
    dVAR;

    PERL_ARGS_ASSERT_SAVE_LONG;

    SSCHECK(3);
    SSPUSHLONG(*longp);
    SSPUSHPTR(longp);
    SSPUSHUV(SAVEt_LONG);
}

void
Perl_save_iv(pTHX_ IV *ivp)
{
    dVAR;

    PERL_ARGS_ASSERT_SAVE_IV;

    SSCHECK(3);
    SSPUSHIV(*ivp);
    SSPUSHPTR(ivp);
    SSPUSHUV(SAVEt_IV);
}

void
Perl_save_nogv(pTHX_ GV *gv)
{
    dVAR;

    PERL_ARGS_ASSERT_SAVE_NOGV;

    SSCHECK(2);
    SSPUSHPTR(gv);
    SSPUSHUV(SAVEt_NSTAB);
}

void
Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
{
    dVAR;
    register I32 i;

    PERL_ARGS_ASSERT_SAVE_LIST;

    for (i = 1; i <= maxsarg; i++) {
	register SV * const sv = newSV(0);
	sv_setsv(sv,sarg[i]);
	SSCHECK(3);
	SSPUSHPTR(sarg[i]);		/* remember the pointer */
	SSPUSHPTR(sv);			/* remember the value */
	SSPUSHUV(SAVEt_ITEM);
    }
}

/*
=for apidoc sv_usepvn_mg

Like C<sv_usepvn>, but also handles 'set' magic.

=cut
*/

void
Perl_sv_usepvn_mg(pTHX_ SV *sv, char *ptr, STRLEN len)
{
    PERL_ARGS_ASSERT_SV_USEPVN_MG;

    sv_usepvn_flags(sv,ptr,len, SV_SMAGIC);
}

/*
=for apidoc sv_usepvn

Tells an SV to use C<ptr> to find its string value. Implemented by
calling C<sv_usepvn_flags> with C<flags> of 0, hence does not handle 'set'
magic. See C<sv_usepvn_flags>.

=cut
*/

void
Perl_sv_usepvn(pTHX_ SV *sv, char *ptr, STRLEN len)
{
    PERL_ARGS_ASSERT_SV_USEPVN;

    sv_usepvn_flags(sv,ptr,len, 0);
}

/*
=for apidoc unpack_str

The engine implementing unpack() Perl function. Note: parameters strbeg, new_s
and ocnt are not used. This call should not be used, use unpackstring instead.

=cut */

I32
Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s,
		const char *strbeg, const char *strend, char **new_s, I32 ocnt,
		U32 flags)
{
    PERL_ARGS_ASSERT_UNPACK_STR;

    PERL_UNUSED_ARG(strbeg);
    PERL_UNUSED_ARG(new_s);
    PERL_UNUSED_ARG(ocnt);

    return unpackstring(pat, patend, s, strend, flags);
}

/*
=for apidoc pack_cat

The engine implementing pack() Perl function. Note: parameters next_in_list and
flags are not used. This call should not be used; use packlist instead.

=cut
*/

void
Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
{
    PERL_ARGS_ASSERT_PACK_CAT;

    PERL_UNUSED_ARG(next_in_list);
    PERL_UNUSED_ARG(flags);

    packlist(cat, pat, patend, beglist, endlist);
}

HE *
Perl_hv_store_ent(pTHX_ HV *hv, SV *keysv, SV *val, U32 hash)
{
  return (HE *)hv_common(hv, keysv, NULL, 0, 0, HV_FETCH_ISSTORE, val, hash);
}

bool
Perl_hv_exists_ent(pTHX_ HV *hv, SV *keysv, U32 hash)
{
    PERL_ARGS_ASSERT_HV_EXISTS_ENT;

    return hv_common(hv, keysv, NULL, 0, 0, HV_FETCH_ISEXISTS, 0, hash)
	? TRUE : FALSE;
}

HE *
Perl_hv_fetch_ent(pTHX_ HV *hv, SV *keysv, I32 lval, U32 hash)
{
    PERL_ARGS_ASSERT_HV_FETCH_ENT;

    return (HE *)hv_common(hv, keysv, NULL, 0, 0, 
		     (lval ? HV_FETCH_LVALUE : 0), NULL, hash);
}

SV *
Perl_hv_delete_ent(pTHX_ HV *hv, SV *keysv, I32 flags, U32 hash)
{
    PERL_ARGS_ASSERT_HV_DELETE_ENT;

    return MUTABLE_SV(hv_common(hv, keysv, NULL, 0, 0, flags | HV_DELETE, NULL,
				hash));
}

SV**
Perl_hv_store_flags(pTHX_ HV *hv, const char *key, I32 klen, SV *val, U32 hash,
		    int flags)
{
    return (SV**) hv_common(hv, NULL, key, klen, flags,
			    (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, hash);
}

SV**
Perl_hv_store(pTHX_ HV *hv, const char *key, I32 klen_i32, SV *val, U32 hash)
{
    STRLEN klen;
    int flags;

    if (klen_i32 < 0) {
	klen = -klen_i32;
	flags = HVhek_UTF8;
    } else {
	klen = klen_i32;
	flags = 0;
    }
    return (SV **) hv_common(hv, NULL, key, klen, flags,
			     (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, hash);
}

bool
Perl_hv_exists(pTHX_ HV *hv, const char *key, I32 klen_i32)
{
    STRLEN klen;
    int flags;

    PERL_ARGS_ASSERT_HV_EXISTS;

    if (klen_i32 < 0) {
	klen = -klen_i32;
	flags = HVhek_UTF8;
    } else {
	klen = klen_i32;
	flags = 0;
    }
    return hv_common(hv, NULL, key, klen, flags, HV_FETCH_ISEXISTS, 0, 0)
	? TRUE : FALSE;
}

SV**
Perl_hv_fetch(pTHX_ HV *hv, const char *key, I32 klen_i32, I32 lval)
{
    STRLEN klen;
    int flags;

    PERL_ARGS_ASSERT_HV_FETCH;

    if (klen_i32 < 0) {
	klen = -klen_i32;
	flags = HVhek_UTF8;
    } else {
	klen = klen_i32;
	flags = 0;
    }
    return (SV **) hv_common(hv, NULL, key, klen, flags,
			     lval ? (HV_FETCH_JUST_SV | HV_FETCH_LVALUE)
			     : HV_FETCH_JUST_SV, NULL, 0);
}

SV *
Perl_hv_delete(pTHX_ HV *hv, const char *key, I32 klen_i32, I32 flags)
{
    STRLEN klen;
    int k_flags;

    PERL_ARGS_ASSERT_HV_DELETE;

    if (klen_i32 < 0) {
	klen = -klen_i32;
	k_flags = HVhek_UTF8;
    } else {
	klen = klen_i32;
	k_flags = 0;
    }
    return MUTABLE_SV(hv_common(hv, NULL, key, klen, k_flags, flags | HV_DELETE,
				NULL, 0));
}

/* Functions after here were made mathoms post 5.10.0 but pre 5.8.9 */

AV *
Perl_newAV(pTHX)
{
    return MUTABLE_AV(newSV_type(SVt_PVAV));
    /* sv_upgrade does AvREAL_only():
    AvALLOC(av) = 0;
    AvARRAY(av) = NULL;
    AvMAX(av) = AvFILLp(av) = -1; */
}

HV *
Perl_newHV(pTHX)
{
    HV * const hv = MUTABLE_HV(newSV_type(SVt_PVHV));
    assert(!SvOK(hv));

    return hv;
}

void
Perl_sv_insert(pTHX_ SV *const bigstr, const STRLEN offset, const STRLEN len, 
              const char *const little, const STRLEN littlelen)
{
    PERL_ARGS_ASSERT_SV_INSERT;
    sv_insert_flags(bigstr, offset, len, little, littlelen, SV_GMAGIC);
}

void
Perl_save_freesv(pTHX_ SV *sv)
{
    dVAR;
    save_freesv(sv);
}

void
Perl_save_mortalizesv(pTHX_ SV *sv)
{
    dVAR;

    PERL_ARGS_ASSERT_SAVE_MORTALIZESV;

    save_mortalizesv(sv);
}

void
Perl_save_freeop(pTHX_ OP *o)
{
    dVAR;
    save_freeop(o);
}

void
Perl_save_freepv(pTHX_ char *pv)
{
    dVAR;
    save_freepv(pv);
}

void
Perl_save_op(pTHX)
{
    dVAR;
    save_op();
}

#ifdef PERL_DONT_CREATE_GVSV
GV *
Perl_gv_SVadd(pTHX_ GV *gv)
{
    return gv_SVadd(gv);
}
#endif

GV *
Perl_gv_AVadd(pTHX_ GV *gv)
{
    return gv_AVadd(gv);
}

GV *
Perl_gv_HVadd(pTHX_ register GV *gv)
{
    return gv_HVadd(gv);
}

GV *
Perl_gv_IOadd(pTHX_ register GV *gv)
{
    return gv_IOadd(gv);
}

IO *
Perl_newIO(pTHX)
{
    return MUTABLE_IO(newSV_type(SVt_PVIO));
}

I32
Perl_my_stat(pTHX)
{
    return my_stat_flags(SV_GMAGIC);
}

I32
Perl_my_lstat(pTHX)
{
    return my_lstat_flags(SV_GMAGIC);
}

I32
Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2)
{
    return sv_eq_flags(sv1, sv2, SV_GMAGIC);
}

#ifdef USE_LOCALE_COLLATE
char *
Perl_sv_collxfrm(pTHX_ SV *const sv, STRLEN *const nxp)
{
    return sv_collxfrm_flags(sv, nxp, SV_GMAGIC);
}
#endif

bool
Perl_sv_2bool(pTHX_ register SV *const sv)
{
    return sv_2bool_flags(sv, SV_GMAGIC);
}


/*
=for apidoc custom_op_name
Return the name for a given custom op. This was once used by the OP_NAME
macro, but is no longer: it has only been kept for compatibility, and
should not be used.

=for apidoc custom_op_desc
Return the description of a given custom op. This was once used by the
OP_DESC macro, but is no longer: it has only been kept for
compatibility, and should not be used.

=cut
*/

const char*
Perl_custom_op_name(pTHX_ const OP* o)
{
    PERL_ARGS_ASSERT_CUSTOM_OP_NAME;
    return XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_name);
}

const char*
Perl_custom_op_desc(pTHX_ const OP* o)
{
    PERL_ARGS_ASSERT_CUSTOM_OP_DESC;
    return XopENTRY(Perl_custom_op_xop(aTHX_ o), xop_desc);
}

CV *
Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block)
{
    return Perl_newATTRSUB(aTHX_ floor, o, proto, NULL, block);
}

UV
Perl_to_utf8_fold(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
{
    PERL_ARGS_ASSERT_TO_UTF8_FOLD;

    return _to_utf8_fold_flags(p, ustrp, lenp, FOLD_FLAGS_FULL, NULL);
}

UV
Perl_to_utf8_lower(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
{
    PERL_ARGS_ASSERT_TO_UTF8_LOWER;

    return _to_utf8_lower_flags(p, ustrp, lenp, FALSE, NULL);
}

UV
Perl_to_utf8_title(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
{
    PERL_ARGS_ASSERT_TO_UTF8_TITLE;

    return _to_utf8_title_flags(p, ustrp, lenp, FALSE, NULL);
}

UV
Perl_to_utf8_upper(pTHX_ const U8 *p, U8* ustrp, STRLEN *lenp)
{
    PERL_ARGS_ASSERT_TO_UTF8_UPPER;

    return _to_utf8_upper_flags(p, ustrp, lenp, FALSE, NULL);
}

#endif /* NO_MATHOMS */

/*
 * Local variables:
 * c-indentation-style: bsd
 * c-basic-offset: 4
 * indent-tabs-mode: t
 * End:
 *
 * ex: set ts=8 sts=4 sw=4 noet:
 */