3 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010,
4 * 2011, 2012 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * Anything that Hobbits had no immediate use for, but were unwilling to
13 * throw away, they called a mathom. Their dwellings were apt to become
14 * rather crowded with mathoms, and many of the presents that passed from
15 * hand to hand were of that sort.
17 * [p.5 of _The Lord of the Rings_: "Prologue"]
23 * This file contains mathoms, various binary artifacts from previous
24 * versions of Perl which we cannot completely remove from the core
25 * code. There are two reasons functions should be here:
27 * 1) A function has been been replaced by a macro within a minor release,
28 * so XS modules compiled against an older release will expect to
29 * still be able to link against the function
30 * 2) A function Perl_foo(...) with #define foo Perl_foo(aTHX_ ...)
31 * has been replaced by a macro, e.g. #define foo(...) foo_flags(...,0)
32 * but XS code may still explicitly use the long form, i.e.
35 * NOTE: ALL FUNCTIONS IN THIS FILE should have an entry with the 'b' flag in
38 * To move a function to this file, simply cut and paste it here, and change
39 * its embed.fnc entry to additionally have the 'b' flag. If, for some reason
40 * a function you'd like to be treated as mathoms can't be moved from its
41 * current place, simply enclose it between
47 * and add the 'b' flag in embed.fnc.
49 * The compilation of this file can be suppressed; see INSTALL
51 * Some blurb for perlapi.pod:
53 =head1 Obsolete backwards compatibility functions
55 Some of these are also deprecated. You can exclude these from
56 your compiled Perl by adding this option to Configure:
57 C<-Accflags='-DNO_MATHOMS'>
65 #define PERL_IN_MATHOMS_C
69 /* ..." warning: ISO C forbids an empty source file"
70 So make sure we have something in here by processing the headers anyway.
74 /* The functions in this file should be able to call other deprecated functions
75 * without a compiler warning */
76 GCC_DIAG_IGNORE(-Wdeprecated-declarations)
78 /* ref() is now a macro using Perl_doref;
79 * this version provided for binary compatibility only.
82 Perl_ref(pTHX_ OP *o, I32 type)
84 return doref(o, type, TRUE);
90 Unsets the RV status of the SV, and decrements the reference count of
91 whatever was being referenced by the RV. This can almost be thought of
92 as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag>
93 being zero. See C<L</SvROK_off>>.
99 Perl_sv_unref(pTHX_ SV *sv)
101 PERL_ARGS_ASSERT_SV_UNREF;
103 sv_unref_flags(sv, 0);
109 Taint an SV. Use C<SvTAINTED_on> instead.
115 Perl_sv_taint(pTHX_ SV *sv)
117 PERL_ARGS_ASSERT_SV_TAINT;
119 sv_magic((sv), NULL, PERL_MAGIC_taint, NULL, 0);
122 /* sv_2iv() is now a macro using Perl_sv_2iv_flags();
123 * this function provided for binary compatibility only
127 Perl_sv_2iv(pTHX_ SV *sv)
129 PERL_ARGS_ASSERT_SV_2IV;
131 return sv_2iv_flags(sv, SV_GMAGIC);
134 /* sv_2uv() is now a macro using Perl_sv_2uv_flags();
135 * this function provided for binary compatibility only
139 Perl_sv_2uv(pTHX_ SV *sv)
141 PERL_ARGS_ASSERT_SV_2UV;
143 return sv_2uv_flags(sv, SV_GMAGIC);
146 /* sv_2nv() is now a macro using Perl_sv_2nv_flags();
147 * this function provided for binary compatibility only
151 Perl_sv_2nv(pTHX_ SV *sv)
153 return sv_2nv_flags(sv, SV_GMAGIC);
157 /* sv_2pv() is now a macro using Perl_sv_2pv_flags();
158 * this function provided for binary compatibility only
162 Perl_sv_2pv(pTHX_ SV *sv, STRLEN *lp)
164 PERL_ARGS_ASSERT_SV_2PV;
166 return sv_2pv_flags(sv, lp, SV_GMAGIC);
170 =for apidoc sv_2pv_nolen
172 Like C<sv_2pv()>, but doesn't return the length too. You should usually
173 use the macro wrapper C<SvPV_nolen(sv)> instead.
179 Perl_sv_2pv_nolen(pTHX_ SV *sv)
181 PERL_ARGS_ASSERT_SV_2PV_NOLEN;
182 return sv_2pv(sv, NULL);
186 =for apidoc sv_2pvbyte_nolen
188 Return a pointer to the byte-encoded representation of the SV.
189 May cause the SV to be downgraded from UTF-8 as a side-effect.
191 Usually accessed via the C<SvPVbyte_nolen> macro.
197 Perl_sv_2pvbyte_nolen(pTHX_ SV *sv)
199 PERL_ARGS_ASSERT_SV_2PVBYTE_NOLEN;
201 return sv_2pvbyte(sv, NULL);
205 =for apidoc sv_2pvutf8_nolen
207 Return a pointer to the UTF-8-encoded representation of the SV.
208 May cause the SV to be upgraded to UTF-8 as a side-effect.
210 Usually accessed via the C<SvPVutf8_nolen> macro.
216 Perl_sv_2pvutf8_nolen(pTHX_ SV *sv)
218 PERL_ARGS_ASSERT_SV_2PVUTF8_NOLEN;
220 return sv_2pvutf8(sv, NULL);
224 =for apidoc sv_force_normal
226 Undo various types of fakery on an SV: if the PV is a shared string, make
227 a private copy; if we're a ref, stop refing; if we're a glob, downgrade to
228 an C<xpvmg>. See also C<L</sv_force_normal_flags>>.
234 Perl_sv_force_normal(pTHX_ SV *sv)
236 PERL_ARGS_ASSERT_SV_FORCE_NORMAL;
238 sv_force_normal_flags(sv, 0);
241 /* sv_setsv() is now a macro using Perl_sv_setsv_flags();
242 * this function provided for binary compatibility only
246 Perl_sv_setsv(pTHX_ SV *dstr, SV *sstr)
248 PERL_ARGS_ASSERT_SV_SETSV;
250 sv_setsv_flags(dstr, sstr, SV_GMAGIC);
253 /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags();
254 * this function provided for binary compatibility only
258 Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen)
260 PERL_ARGS_ASSERT_SV_CATPVN;
262 sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC);
266 =for apidoc sv_catpvn_mg
268 Like C<sv_catpvn>, but also handles 'set' magic.
274 Perl_sv_catpvn_mg(pTHX_ SV *sv, const char *ptr, STRLEN len)
276 PERL_ARGS_ASSERT_SV_CATPVN_MG;
278 sv_catpvn_flags(sv,ptr,len,SV_GMAGIC|SV_SMAGIC);
281 /* sv_catsv() is now a macro using Perl_sv_catsv_flags();
282 * this function provided for binary compatibility only
286 Perl_sv_catsv(pTHX_ SV *dstr, SV *sstr)
288 PERL_ARGS_ASSERT_SV_CATSV;
290 sv_catsv_flags(dstr, sstr, SV_GMAGIC);
294 =for apidoc sv_catsv_mg
296 Like C<sv_catsv>, but also handles 'set' magic.
302 Perl_sv_catsv_mg(pTHX_ SV *dsv, SV *ssv)
304 PERL_ARGS_ASSERT_SV_CATSV_MG;
306 sv_catsv_flags(dsv,ssv,SV_GMAGIC|SV_SMAGIC);
312 A private implementation of the C<SvIVx> macro for compilers which can't
313 cope with complex macro expressions. Always use the macro instead.
319 Perl_sv_iv(pTHX_ SV *sv)
321 PERL_ARGS_ASSERT_SV_IV;
325 return (IV)SvUVX(sv);
334 A private implementation of the C<SvUVx> macro for compilers which can't
335 cope with complex macro expressions. Always use the macro instead.
341 Perl_sv_uv(pTHX_ SV *sv)
343 PERL_ARGS_ASSERT_SV_UV;
348 return (UV)SvIVX(sv);
356 A private implementation of the C<SvNVx> macro for compilers which can't
357 cope with complex macro expressions. Always use the macro instead.
363 Perl_sv_nv(pTHX_ SV *sv)
365 PERL_ARGS_ASSERT_SV_NV;
375 Use the C<SvPV_nolen> macro instead
379 A private implementation of the C<SvPV> macro for compilers which can't
380 cope with complex macro expressions. Always use the macro instead.
386 Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp)
388 PERL_ARGS_ASSERT_SV_PVN;
394 return sv_2pv(sv, lp);
399 Perl_sv_pvn_nomg(pTHX_ SV *sv, STRLEN *lp)
401 PERL_ARGS_ASSERT_SV_PVN_NOMG;
407 return sv_2pv_flags(sv, lp, 0);
410 /* sv_pv() is now a macro using SvPV_nolen();
411 * this function provided for binary compatibility only
415 Perl_sv_pv(pTHX_ SV *sv)
417 PERL_ARGS_ASSERT_SV_PV;
422 return sv_2pv(sv, NULL);
425 /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags();
426 * this function provided for binary compatibility only
430 Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
432 PERL_ARGS_ASSERT_SV_PVN_FORCE;
434 return sv_pvn_force_flags(sv, lp, SV_GMAGIC);
437 /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags();
438 * this function provided for binary compatibility only
442 Perl_sv_pvbyte(pTHX_ SV *sv)
444 PERL_ARGS_ASSERT_SV_PVBYTE;
446 sv_utf8_downgrade(sv, FALSE);
451 =for apidoc sv_pvbyte
453 Use C<SvPVbyte_nolen> instead.
455 =for apidoc sv_pvbyten
457 A private implementation of the C<SvPVbyte> macro for compilers
458 which can't cope with complex macro expressions. Always use the macro
465 Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp)
467 PERL_ARGS_ASSERT_SV_PVBYTEN;
469 sv_utf8_downgrade(sv, FALSE);
470 return sv_pvn(sv,lp);
473 /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags();
474 * this function provided for binary compatibility only
478 Perl_sv_pvutf8(pTHX_ SV *sv)
480 PERL_ARGS_ASSERT_SV_PVUTF8;
487 =for apidoc sv_pvutf8
489 Use the C<SvPVutf8_nolen> macro instead
491 =for apidoc sv_pvutf8n
493 A private implementation of the C<SvPVutf8> macro for compilers
494 which can't cope with complex macro expressions. Always use the macro
501 Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp)
503 PERL_ARGS_ASSERT_SV_PVUTF8N;
506 return sv_pvn(sv,lp);
509 /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags();
510 * this function provided for binary compatibility only
514 Perl_sv_utf8_upgrade(pTHX_ SV *sv)
516 PERL_ARGS_ASSERT_SV_UTF8_UPGRADE;
518 return sv_utf8_upgrade_flags(sv, SV_GMAGIC);
522 Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...)
527 /* Easier to special case this here than in embed.pl. (Look at what it
528 generates for proto.h) */
529 #ifdef PERL_IMPLICIT_CONTEXT
530 PERL_ARGS_ASSERT_FPRINTF_NOCONTEXT;
533 va_start(arglist, format);
534 ret = PerlIO_vprintf(stream, format, arglist);
540 Perl_printf_nocontext(const char *format, ...)
546 #ifdef PERL_IMPLICIT_CONTEXT
547 PERL_ARGS_ASSERT_PRINTF_NOCONTEXT;
550 va_start(arglist, format);
551 ret = PerlIO_vprintf(PerlIO_stdout(), format, arglist);
556 #if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL))
558 * This hack is to force load of "huge" support from libm.a
559 * So it is in perl for (say) POSIX to use.
560 * Needed for SunOS with Sun's 'acc' for example.
565 # if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
573 /* compatibility with versions <= 5.003. */
575 Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
577 PERL_ARGS_ASSERT_GV_FULLNAME;
579 gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
582 /* compatibility with versions <= 5.003. */
584 Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
586 PERL_ARGS_ASSERT_GV_EFULLNAME;
588 gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
592 Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
594 PERL_ARGS_ASSERT_GV_FULLNAME3;
596 gv_fullname4(sv, gv, prefix, TRUE);
600 Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
602 PERL_ARGS_ASSERT_GV_EFULLNAME3;
604 gv_efullname4(sv, gv, prefix, TRUE);
608 =for apidoc gv_fetchmethod
610 See L</gv_fetchmethod_autoload>.
616 Perl_gv_fetchmethod(pTHX_ HV *stash, const char *name)
618 PERL_ARGS_ASSERT_GV_FETCHMETHOD;
620 return gv_fetchmethod_autoload(stash, name, TRUE);
624 Perl_hv_iternext(pTHX_ HV *hv)
626 PERL_ARGS_ASSERT_HV_ITERNEXT;
628 return hv_iternext_flags(hv, 0);
632 Perl_hv_magic(pTHX_ HV *hv, GV *gv, int how)
634 PERL_ARGS_ASSERT_HV_MAGIC;
636 sv_magic(MUTABLE_SV(hv), MUTABLE_SV(gv), how, NULL, 0);
640 Perl_do_open(pTHX_ GV *gv, const char *name, I32 len, int as_raw,
641 int rawmode, int rawperm, PerlIO *supplied_fp)
643 PERL_ARGS_ASSERT_DO_OPEN;
645 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
646 supplied_fp, (SV **) NULL, 0);
650 Perl_do_open9(pTHX_ GV *gv, const char *name, I32 len, int
652 int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs,
655 PERL_ARGS_ASSERT_DO_OPEN9;
657 PERL_UNUSED_ARG(num_svs);
658 return do_openn(gv, name, len, as_raw, rawmode, rawperm,
659 supplied_fp, &svs, 1);
663 Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode)
665 /* The old body of this is now in non-LAYER part of perlio.c
666 * This is a stub for any XS code which might have been calling it.
668 const char *name = ":raw";
670 PERL_ARGS_ASSERT_DO_BINMODE;
672 #ifdef PERLIO_USING_CRLF
673 if (!(mode & O_BINARY))
676 return PerlIO_binmode(aTHX_ fp, iotype, mode, name);
681 Perl_do_aexec(pTHX_ SV *really, SV **mark, SV **sp)
683 PERL_ARGS_ASSERT_DO_AEXEC;
685 return do_aexec5(really, mark, sp, 0, 0);
689 /* Backwards compatibility. */
691 Perl_init_i18nl14n(pTHX_ int printwarn)
693 return init_i18nl10n(printwarn);
697 Perl_is_utf8_string_loc(const U8 *s, const STRLEN len, const U8 **ep)
699 PERL_ARGS_ASSERT_IS_UTF8_STRING_LOC;
701 return is_utf8_string_loclen(s, len, ep, 0);
705 =for apidoc sv_nolocking
707 Dummy routine which "locks" an SV when there is no locking module present.
708 Exists to avoid test for a C<NULL> function pointer and because it could
709 potentially warn under some level of strict-ness.
711 "Superseded" by C<sv_nosharing()>.
717 Perl_sv_nolocking(pTHX_ SV *sv)
725 =for apidoc sv_nounlocking
727 Dummy routine which "unlocks" an SV when there is no locking module present.
728 Exists to avoid test for a C<NULL> function pointer and because it could
729 potentially warn under some level of strict-ness.
731 "Superseded" by C<sv_nosharing()>.
735 PERL_UNLOCK_HOOK in intrpvar.h is the macro that refers to this, and guarantees
736 that mathoms gets loaded.
741 Perl_sv_nounlocking(pTHX_ SV *sv)
748 Perl_save_long(pTHX_ long int *longp)
750 PERL_ARGS_ASSERT_SAVE_LONG;
755 SSPUSHUV(SAVEt_LONG);
759 Perl_save_nogv(pTHX_ GV *gv)
761 PERL_ARGS_ASSERT_SAVE_NOGV;
765 SSPUSHUV(SAVEt_NSTAB);
769 Perl_save_list(pTHX_ SV **sarg, I32 maxsarg)
773 PERL_ARGS_ASSERT_SAVE_LIST;
775 for (i = 1; i <= maxsarg; i++) {
779 sv_setsv_nomg(sv,sarg[i]);
781 SSPUSHPTR(sarg[i]); /* remember the pointer */
782 SSPUSHPTR(sv); /* remember the value */
783 SSPUSHUV(SAVEt_ITEM);
788 =for apidoc sv_usepvn_mg
790 Like C<sv_usepvn>, but also handles 'set' magic.
796 Perl_sv_usepvn_mg(pTHX_ SV *sv, char *ptr, STRLEN len)
798 PERL_ARGS_ASSERT_SV_USEPVN_MG;
800 sv_usepvn_flags(sv,ptr,len, SV_SMAGIC);
804 =for apidoc sv_usepvn
806 Tells an SV to use C<ptr> to find its string value. Implemented by
807 calling C<sv_usepvn_flags> with C<flags> of 0, hence does not handle 'set'
808 magic. See C<L</sv_usepvn_flags>>.
814 Perl_sv_usepvn(pTHX_ SV *sv, char *ptr, STRLEN len)
816 PERL_ARGS_ASSERT_SV_USEPVN;
818 sv_usepvn_flags(sv,ptr,len, 0);
822 =for apidoc unpack_str
824 The engine implementing C<unpack()> Perl function. Note: parameters C<strbeg>,
825 C<new_s> and C<ocnt> are not used. This call should not be used, use
826 C<unpackstring> instead.
831 Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s,
832 const char *strbeg, const char *strend, char **new_s, I32 ocnt,
835 PERL_ARGS_ASSERT_UNPACK_STR;
837 PERL_UNUSED_ARG(strbeg);
838 PERL_UNUSED_ARG(new_s);
839 PERL_UNUSED_ARG(ocnt);
841 return unpackstring(pat, patend, s, strend, flags);
847 The engine implementing C<pack()> Perl function. Note: parameters
848 C<next_in_list> and C<flags> are not used. This call should not be used; use
855 Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
857 PERL_ARGS_ASSERT_PACK_CAT;
859 PERL_UNUSED_ARG(next_in_list);
860 PERL_UNUSED_ARG(flags);
862 packlist(cat, pat, patend, beglist, endlist);
866 Perl_hv_store_ent(pTHX_ HV *hv, SV *keysv, SV *val, U32 hash)
868 return (HE *)hv_common(hv, keysv, NULL, 0, 0, HV_FETCH_ISSTORE, val, hash);
872 Perl_hv_exists_ent(pTHX_ HV *hv, SV *keysv, U32 hash)
874 PERL_ARGS_ASSERT_HV_EXISTS_ENT;
876 return cBOOL(hv_common(hv, keysv, NULL, 0, 0, HV_FETCH_ISEXISTS, 0, hash));
880 Perl_hv_fetch_ent(pTHX_ HV *hv, SV *keysv, I32 lval, U32 hash)
882 PERL_ARGS_ASSERT_HV_FETCH_ENT;
884 return (HE *)hv_common(hv, keysv, NULL, 0, 0,
885 (lval ? HV_FETCH_LVALUE : 0), NULL, hash);
889 Perl_hv_delete_ent(pTHX_ HV *hv, SV *keysv, I32 flags, U32 hash)
891 PERL_ARGS_ASSERT_HV_DELETE_ENT;
893 return MUTABLE_SV(hv_common(hv, keysv, NULL, 0, 0, flags | HV_DELETE, NULL,
898 Perl_hv_store_flags(pTHX_ HV *hv, const char *key, I32 klen, SV *val, U32 hash,
901 return (SV**) hv_common(hv, NULL, key, klen, flags,
902 (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, hash);
906 Perl_hv_store(pTHX_ HV *hv, const char *key, I32 klen_i32, SV *val, U32 hash)
918 return (SV **) hv_common(hv, NULL, key, klen, flags,
919 (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, hash);
923 Perl_hv_exists(pTHX_ HV *hv, const char *key, I32 klen_i32)
928 PERL_ARGS_ASSERT_HV_EXISTS;
937 return cBOOL(hv_common(hv, NULL, key, klen, flags, HV_FETCH_ISEXISTS, 0, 0));
941 Perl_hv_fetch(pTHX_ HV *hv, const char *key, I32 klen_i32, I32 lval)
946 PERL_ARGS_ASSERT_HV_FETCH;
955 return (SV **) hv_common(hv, NULL, key, klen, flags,
956 lval ? (HV_FETCH_JUST_SV | HV_FETCH_LVALUE)
957 : HV_FETCH_JUST_SV, NULL, 0);
961 Perl_hv_delete(pTHX_ HV *hv, const char *key, I32 klen_i32, I32 flags)
966 PERL_ARGS_ASSERT_HV_DELETE;
970 k_flags = HVhek_UTF8;
975 return MUTABLE_SV(hv_common(hv, NULL, key, klen, k_flags, flags | HV_DELETE,
982 return MUTABLE_AV(newSV_type(SVt_PVAV));
983 /* sv_upgrade does AvREAL_only():
986 AvMAX(av) = AvFILLp(av) = -1; */
992 HV * const hv = MUTABLE_HV(newSV_type(SVt_PVHV));
999 Perl_sv_insert(pTHX_ SV *const bigstr, const STRLEN offset, const STRLEN len,
1000 const char *const little, const STRLEN littlelen)
1002 PERL_ARGS_ASSERT_SV_INSERT;
1003 sv_insert_flags(bigstr, offset, len, little, littlelen, SV_GMAGIC);
1007 Perl_save_freesv(pTHX_ SV *sv)
1013 Perl_save_mortalizesv(pTHX_ SV *sv)
1015 PERL_ARGS_ASSERT_SAVE_MORTALIZESV;
1017 save_mortalizesv(sv);
1021 Perl_save_freeop(pTHX_ OP *o)
1027 Perl_save_freepv(pTHX_ char *pv)
1038 #ifdef PERL_DONT_CREATE_GVSV
1040 Perl_gv_SVadd(pTHX_ GV *gv)
1042 return gv_SVadd(gv);
1047 Perl_gv_AVadd(pTHX_ GV *gv)
1049 return gv_AVadd(gv);
1053 Perl_gv_HVadd(pTHX_ GV *gv)
1055 return gv_HVadd(gv);
1059 Perl_gv_IOadd(pTHX_ GV *gv)
1061 return gv_IOadd(gv);
1067 return MUTABLE_IO(newSV_type(SVt_PVIO));
1073 return my_stat_flags(SV_GMAGIC);
1079 return my_lstat_flags(SV_GMAGIC);
1083 Perl_sv_eq(pTHX_ SV *sv1, SV *sv2)
1085 return sv_eq_flags(sv1, sv2, SV_GMAGIC);
1088 #ifdef USE_LOCALE_COLLATE
1090 Perl_sv_collxfrm(pTHX_ SV *const sv, STRLEN *const nxp)
1092 PERL_ARGS_ASSERT_SV_COLLXFRM;
1093 return sv_collxfrm_flags(sv, nxp, SV_GMAGIC);
1097 Perl_mem_collxfrm(pTHX_ const char *input_string, STRLEN len, STRLEN *xlen)
1099 /* This function is retained for compatibility in case someone outside core
1100 * is using this (but it is undocumented) */
1102 PERL_ARGS_ASSERT_MEM_COLLXFRM;
1104 return _mem_collxfrm(input_string, len, xlen, FALSE);
1110 Perl_sv_2bool(pTHX_ SV *const sv)
1112 PERL_ARGS_ASSERT_SV_2BOOL;
1113 return sv_2bool_flags(sv, SV_GMAGIC);
1118 =for apidoc custom_op_name
1119 Return the name for a given custom op. This was once used by the C<OP_NAME>
1120 macro, but is no longer: it has only been kept for compatibility, and
1123 =for apidoc custom_op_desc
1124 Return the description of a given custom op. This was once used by the
1125 C<OP_DESC> macro, but is no longer: it has only been kept for
1126 compatibility, and should not be used.
1132 Perl_custom_op_name(pTHX_ const OP* o)
1134 PERL_ARGS_ASSERT_CUSTOM_OP_NAME;
1135 return XopENTRYCUSTOM(o, xop_name);
1139 Perl_custom_op_desc(pTHX_ const OP* o)
1141 PERL_ARGS_ASSERT_CUSTOM_OP_DESC;
1142 return XopENTRYCUSTOM(o, xop_desc);
1146 Perl_newSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *block)
1148 return newATTRSUB(floor, o, proto, NULL, block);
1152 Perl_sv_mortalcopy(pTHX_ SV *const oldstr)
1154 return Perl_sv_mortalcopy_flags(aTHX_ oldstr, SV_GMAGIC);
1158 Perl_sv_copypv(pTHX_ SV *const dsv, SV *const ssv)
1160 PERL_ARGS_ASSERT_SV_COPYPV;
1162 sv_copypv_flags(dsv, ssv, SV_GMAGIC);
1165 UV /* Made into a function, so can be deprecated */
1166 NATIVE_TO_NEED(const UV enc, const UV ch)
1168 PERL_UNUSED_ARG(enc);
1172 UV /* Made into a function, so can be deprecated */
1173 ASCII_TO_NEED(const UV enc, const UV ch)
1175 PERL_UNUSED_ARG(enc);
1180 =for apidoc is_utf8_char
1182 Tests if some arbitrary number of bytes begins in a valid UTF-8
1183 character. Note that an INVARIANT (i.e. ASCII on non-EBCDIC machines)
1184 character is a valid UTF-8 character. The actual number of bytes in the UTF-8
1185 character will be returned if it is valid, otherwise 0.
1187 This function is deprecated due to the possibility that malformed input could
1188 cause reading beyond the end of the input buffer. Use L</isUTF8_CHAR>
1194 Perl_is_utf8_char(const U8 *s)
1196 PERL_ARGS_ASSERT_IS_UTF8_CHAR;
1198 /* Assumes we have enough space, which is why this is deprecated. But the
1199 * UTF8_CHK_SKIP(s)) makes it safe for the common case of NUL-terminated
1201 return isUTF8_CHAR(s, s + UTF8_CHK_SKIP(s));
1205 =for apidoc is_utf8_char_buf
1207 This is identical to the macro L<perlapi/isUTF8_CHAR>.
1212 Perl_is_utf8_char_buf(const U8 *buf, const U8* buf_end)
1215 PERL_ARGS_ASSERT_IS_UTF8_CHAR_BUF;
1217 return isUTF8_CHAR(buf, buf_end);
1221 * Like L</utf8_to_uvuni_buf>(), but should only be called when it is known that
1222 * there are no malformations in the input UTF-8 string C<s>. Surrogates,
1223 * non-character code points, and non-Unicode code points are allowed */
1226 Perl_valid_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN *retlen)
1228 PERL_UNUSED_CONTEXT;
1229 PERL_ARGS_ASSERT_VALID_UTF8_TO_UVUNI;
1231 return NATIVE_TO_UNI(valid_utf8_to_uvchr(s, retlen));
1235 =for apidoc utf8_to_uvuni
1237 Returns the Unicode code point of the first character in the string C<s>
1238 which is assumed to be in UTF-8 encoding; C<retlen> will be set to the
1239 length, in bytes, of that character.
1241 Some, but not all, UTF-8 malformations are detected, and in fact, some
1242 malformed input could cause reading beyond the end of the input buffer, which
1243 is one reason why this function is deprecated. The other is that only in
1244 extremely limited circumstances should the Unicode versus native code point be
1245 of any interest to you. See L</utf8_to_uvuni_buf> for alternatives.
1247 If C<s> points to one of the detected malformations, and UTF8 warnings are
1248 enabled, zero is returned and C<*retlen> is set (if C<retlen> doesn't point to
1249 NULL) to -1. If those warnings are off, the computed value if well-defined (or
1250 the Unicode REPLACEMENT CHARACTER, if not) is silently returned, and C<*retlen>
1251 is set (if C<retlen> isn't NULL) so that (S<C<s> + C<*retlen>>) is the
1252 next possible position in C<s> that could begin a non-malformed character.
1253 See L<perlapi/utf8n_to_uvchr> for details on when the REPLACEMENT CHARACTER is returned.
1259 Perl_utf8_to_uvuni(pTHX_ const U8 *s, STRLEN *retlen)
1261 PERL_UNUSED_CONTEXT;
1262 PERL_ARGS_ASSERT_UTF8_TO_UVUNI;
1264 return NATIVE_TO_UNI(valid_utf8_to_uvchr(s, retlen));
1268 =for apidoc pad_compname_type
1270 Looks up the type of the lexical variable at position C<po> in the
1271 currently-compiling pad. If the variable is typed, the stash of the
1272 class to which it is typed is returned. If not, C<NULL> is returned.
1278 Perl_pad_compname_type(pTHX_ const PADOFFSET po)
1280 return PAD_COMPNAME_TYPE(po);
1283 /* return ptr to little string in big string, NULL if not found */
1284 /* The original version of this routine was donated by Corey Satten. */
1287 Perl_instr(const char *big, const char *little)
1289 PERL_ARGS_ASSERT_INSTR;
1291 return instr((char *) big, (char *) little);
1295 Perl_newSVsv(pTHX_ SV *const old)
1297 return newSVsv(old);
1301 Perl_sv_utf8_downgrade(pTHX_ SV *const sv, const bool fail_ok)
1303 PERL_ARGS_ASSERT_SV_UTF8_DOWNGRADE;
1305 return sv_utf8_downgrade(sv, fail_ok);
1309 Perl_sv_2pvutf8(pTHX_ SV *sv, STRLEN *const lp)
1311 PERL_ARGS_ASSERT_SV_2PVUTF8;
1313 return sv_2pvutf8(sv, lp);
1317 Perl_sv_2pvbyte(pTHX_ SV *sv, STRLEN *const lp)
1319 PERL_ARGS_ASSERT_SV_2PVBYTE;
1321 return sv_2pvbyte(sv, lp);
1325 Perl_uvuni_to_utf8(pTHX_ U8 *d, UV uv)
1327 PERL_ARGS_ASSERT_UVUNI_TO_UTF8;
1329 return uvoffuni_to_utf8_flags(d, uv, 0);
1333 =for apidoc utf8n_to_uvuni
1335 Instead use L<perlapi/utf8_to_uvchr_buf>, or rarely, L<perlapi/utf8n_to_uvchr>.
1337 This function was useful for code that wanted to handle both EBCDIC and
1338 ASCII platforms with Unicode properties, but starting in Perl v5.20, the
1339 distinctions between the platforms have mostly been made invisible to most
1340 code, so this function is quite unlikely to be what you want. If you do need
1341 this precise functionality, use instead
1342 C<L<NATIVE_TO_UNI(utf8_to_uvchr_buf(...))|perlapi/utf8_to_uvchr_buf>>
1343 or C<L<NATIVE_TO_UNI(utf8n_to_uvchr(...))|perlapi/utf8n_to_uvchr>>.
1349 Perl_utf8n_to_uvuni(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, U32 flags)
1351 PERL_ARGS_ASSERT_UTF8N_TO_UVUNI;
1353 return NATIVE_TO_UNI(utf8n_to_uvchr(s, curlen, retlen, flags));
1357 =for apidoc uvuni_to_utf8_flags
1359 Instead you almost certainly want to use L<perlapi/uvchr_to_utf8> or
1360 L<perlapi/uvchr_to_utf8_flags>.
1362 This function is a deprecated synonym for L</uvoffuni_to_utf8_flags>,
1363 which itself, while not deprecated, should be used only in isolated
1364 circumstances. These functions were useful for code that wanted to handle
1365 both EBCDIC and ASCII platforms with Unicode properties, but starting in Perl
1366 v5.20, the distinctions between the platforms have mostly been made invisible
1367 to most code, so this function is quite unlikely to be what you want.
1373 Perl_uvuni_to_utf8_flags(pTHX_ U8 *d, UV uv, UV flags)
1375 PERL_ARGS_ASSERT_UVUNI_TO_UTF8_FLAGS;
1377 return uvoffuni_to_utf8_flags(d, uv, flags);
1381 =for apidoc utf8_to_uvchr
1383 Returns the native code point of the first character in the string C<s>
1384 which is assumed to be in UTF-8 encoding; C<retlen> will be set to the
1385 length, in bytes, of that character.
1387 Some, but not all, UTF-8 malformations are detected, and in fact, some
1388 malformed input could cause reading beyond the end of the input buffer, which
1389 is why this function is deprecated. Use L</utf8_to_uvchr_buf> instead.
1391 If C<s> points to one of the detected malformations, and UTF8 warnings are
1392 enabled, zero is returned and C<*retlen> is set (if C<retlen> isn't
1393 C<NULL>) to -1. If those warnings are off, the computed value if well-defined (or
1394 the Unicode REPLACEMENT CHARACTER, if not) is silently returned, and C<*retlen>
1395 is set (if C<retlen> isn't NULL) so that (S<C<s> + C<*retlen>>) is the
1396 next possible position in C<s> that could begin a non-malformed character.
1397 See L</utf8n_to_uvchr> for details on when the REPLACEMENT CHARACTER is returned.
1403 Perl_utf8_to_uvchr(pTHX_ const U8 *s, STRLEN *retlen)
1405 PERL_ARGS_ASSERT_UTF8_TO_UVCHR;
1407 /* This function is unsafe if malformed UTF-8 input is given it, which is
1408 * why the function is deprecated. If the first byte of the input
1409 * indicates that there are more bytes remaining in the sequence that forms
1410 * the character than there are in the input buffer, it can read past the
1411 * end. But we can make it safe if the input string happens to be
1412 * NUL-terminated, as many strings in Perl are, by refusing to read past a
1413 * NUL, which is what UTF8_CHK_SKIP() does. A NUL indicates the start of
1414 * the next character anyway. If the input isn't NUL-terminated, the
1415 * function remains unsafe, as it always has been. */
1417 return utf8_to_uvchr_buf(s, s + UTF8_CHK_SKIP(s), retlen);
1422 #endif /* NO_MATHOMS */
1425 * ex: set ts=8 sts=4 sw=4 et: