3 * Copyright (c) 1991-2000, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "I wonder what the Entish is for 'yes' and 'no'," he thought.
19 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv)
21 static void do_report_used(pTHXo_ SV *sv);
22 static void do_clean_objs(pTHXo_ SV *sv);
23 #ifndef DISABLE_DESTRUCTOR_KLUDGE
24 static void do_clean_named_objs(pTHXo_ SV *sv);
26 static void do_clean_all(pTHXo_ SV *sv);
29 * "A time to plant, and a time to uproot what was planted..."
34 SvANY(p) = (void *)PL_sv_root; \
35 SvFLAGS(p) = SVTYPEMASK; \
40 /* sv_mutex must be held while calling uproot_SV() */
41 #define uproot_SV(p) \
44 PL_sv_root = (SV*)SvANY(p); \
66 if (PL_debug & 32768) \
76 if (PL_debug & 32768) {
81 for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
83 svend = &sva[SvREFCNT(sva)];
84 if (p >= sv && p < svend)
88 if (ckWARN_d(WARN_INTERNAL))
89 Perl_warner(aTHX_ WARN_INTERNAL,
90 "Attempt to free non-arena SV: 0x%"UVxf,
98 #else /* ! DEBUGGING */
100 #define del_SV(p) plant_SV(p)
102 #endif /* DEBUGGING */
105 Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags)
110 Zero(ptr, size, char);
112 /* The first SV in an arena isn't an SV. */
113 SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */
114 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
115 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
117 PL_sv_arenaroot = sva;
118 PL_sv_root = sva + 1;
120 svend = &sva[SvREFCNT(sva) - 1];
123 SvANY(sv) = (void *)(SV*)(sv + 1);
124 SvFLAGS(sv) = SVTYPEMASK;
128 SvFLAGS(sv) = SVTYPEMASK;
131 /* sv_mutex must be held while calling more_sv() */
138 sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0);
139 PL_nice_chunk = Nullch;
142 char *chunk; /* must use New here to match call to */
143 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
144 sv_add_arena(chunk, 1008, 0);
151 S_visit(pTHX_ SVFUNC_t f)
157 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
158 svend = &sva[SvREFCNT(sva)];
159 for (sv = sva + 1; sv < svend; ++sv) {
160 if (SvTYPE(sv) != SVTYPEMASK)
167 Perl_sv_report_used(pTHX)
169 visit(do_report_used);
173 Perl_sv_clean_objs(pTHX)
175 PL_in_clean_objs = TRUE;
176 visit(do_clean_objs);
177 #ifndef DISABLE_DESTRUCTOR_KLUDGE
178 /* some barnacles may yet remain, clinging to typeglobs */
179 visit(do_clean_named_objs);
181 PL_in_clean_objs = FALSE;
185 Perl_sv_clean_all(pTHX)
187 PL_in_clean_all = TRUE;
189 PL_in_clean_all = FALSE;
193 Perl_sv_free_arenas(pTHX)
198 /* Free arenas here, but be careful about fake ones. (We assume
199 contiguity of the fake ones with the corresponding real ones.) */
201 for (sva = PL_sv_arenaroot; sva; sva = svanext) {
202 svanext = (SV*) SvANY(sva);
203 while (svanext && SvFAKE(svanext))
204 svanext = (SV*) SvANY(svanext);
207 Safefree((void *)sva);
211 Safefree(PL_nice_chunk);
212 PL_nice_chunk = Nullch;
213 PL_nice_chunk_size = 0;
219 Perl_report_uninit(pTHX)
222 Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit,
223 " in ", PL_op_desc[PL_op->op_type]);
225 Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", "");
237 * See comment in more_xiv() -- RAM.
239 PL_xiv_root = *(IV**)xiv;
241 return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv));
245 S_del_xiv(pTHX_ XPVIV *p)
247 IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv));
249 *(IV**)xiv = PL_xiv_root;
260 New(705, ptr, 1008/sizeof(XPV), XPV);
261 ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */
262 PL_xiv_arenaroot = ptr; /* to keep Purify happy */
265 xivend = &xiv[1008 / sizeof(IV) - 1];
266 xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */
268 while (xiv < xivend) {
269 *(IV**)xiv = (IV *)(xiv + 1);
283 PL_xnv_root = *(NV**)xnv;
285 return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv));
289 S_del_xnv(pTHX_ XPVNV *p)
291 NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv));
293 *(NV**)xnv = PL_xnv_root;
303 New(711, xnv, 1008/sizeof(NV), NV);
304 xnvend = &xnv[1008 / sizeof(NV) - 1];
305 xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */
307 while (xnv < xnvend) {
308 *(NV**)xnv = (NV*)(xnv + 1);
322 PL_xrv_root = (XRV*)xrv->xrv_rv;
328 S_del_xrv(pTHX_ XRV *p)
331 p->xrv_rv = (SV*)PL_xrv_root;
340 register XRV* xrvend;
341 New(712, PL_xrv_root, 1008/sizeof(XRV), XRV);
343 xrvend = &xrv[1008 / sizeof(XRV) - 1];
344 while (xrv < xrvend) {
345 xrv->xrv_rv = (SV*)(xrv + 1);
359 PL_xpv_root = (XPV*)xpv->xpv_pv;
365 S_del_xpv(pTHX_ XPV *p)
368 p->xpv_pv = (char*)PL_xpv_root;
377 register XPV* xpvend;
378 New(713, PL_xpv_root, 1008/sizeof(XPV), XPV);
380 xpvend = &xpv[1008 / sizeof(XPV) - 1];
381 while (xpv < xpvend) {
382 xpv->xpv_pv = (char*)(xpv + 1);
395 xpviv = PL_xpviv_root;
396 PL_xpviv_root = (XPVIV*)xpviv->xpv_pv;
402 S_del_xpviv(pTHX_ XPVIV *p)
405 p->xpv_pv = (char*)PL_xpviv_root;
414 register XPVIV* xpviv;
415 register XPVIV* xpvivend;
416 New(714, PL_xpviv_root, 1008/sizeof(XPVIV), XPVIV);
417 xpviv = PL_xpviv_root;
418 xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1];
419 while (xpviv < xpvivend) {
420 xpviv->xpv_pv = (char*)(xpviv + 1);
434 xpvnv = PL_xpvnv_root;
435 PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv;
441 S_del_xpvnv(pTHX_ XPVNV *p)
444 p->xpv_pv = (char*)PL_xpvnv_root;
453 register XPVNV* xpvnv;
454 register XPVNV* xpvnvend;
455 New(715, PL_xpvnv_root, 1008/sizeof(XPVNV), XPVNV);
456 xpvnv = PL_xpvnv_root;
457 xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1];
458 while (xpvnv < xpvnvend) {
459 xpvnv->xpv_pv = (char*)(xpvnv + 1);
474 xpvcv = PL_xpvcv_root;
475 PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv;
481 S_del_xpvcv(pTHX_ XPVCV *p)
484 p->xpv_pv = (char*)PL_xpvcv_root;
493 register XPVCV* xpvcv;
494 register XPVCV* xpvcvend;
495 New(716, PL_xpvcv_root, 1008/sizeof(XPVCV), XPVCV);
496 xpvcv = PL_xpvcv_root;
497 xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1];
498 while (xpvcv < xpvcvend) {
499 xpvcv->xpv_pv = (char*)(xpvcv + 1);
514 xpvav = PL_xpvav_root;
515 PL_xpvav_root = (XPVAV*)xpvav->xav_array;
521 S_del_xpvav(pTHX_ XPVAV *p)
524 p->xav_array = (char*)PL_xpvav_root;
533 register XPVAV* xpvav;
534 register XPVAV* xpvavend;
535 New(717, PL_xpvav_root, 1008/sizeof(XPVAV), XPVAV);
536 xpvav = PL_xpvav_root;
537 xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1];
538 while (xpvav < xpvavend) {
539 xpvav->xav_array = (char*)(xpvav + 1);
542 xpvav->xav_array = 0;
554 xpvhv = PL_xpvhv_root;
555 PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array;
561 S_del_xpvhv(pTHX_ XPVHV *p)
564 p->xhv_array = (char*)PL_xpvhv_root;
573 register XPVHV* xpvhv;
574 register XPVHV* xpvhvend;
575 New(718, PL_xpvhv_root, 1008/sizeof(XPVHV), XPVHV);
576 xpvhv = PL_xpvhv_root;
577 xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1];
578 while (xpvhv < xpvhvend) {
579 xpvhv->xhv_array = (char*)(xpvhv + 1);
582 xpvhv->xhv_array = 0;
593 xpvmg = PL_xpvmg_root;
594 PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv;
600 S_del_xpvmg(pTHX_ XPVMG *p)
603 p->xpv_pv = (char*)PL_xpvmg_root;
612 register XPVMG* xpvmg;
613 register XPVMG* xpvmgend;
614 New(719, PL_xpvmg_root, 1008/sizeof(XPVMG), XPVMG);
615 xpvmg = PL_xpvmg_root;
616 xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1];
617 while (xpvmg < xpvmgend) {
618 xpvmg->xpv_pv = (char*)(xpvmg + 1);
633 xpvlv = PL_xpvlv_root;
634 PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv;
640 S_del_xpvlv(pTHX_ XPVLV *p)
643 p->xpv_pv = (char*)PL_xpvlv_root;
652 register XPVLV* xpvlv;
653 register XPVLV* xpvlvend;
654 New(720, PL_xpvlv_root, 1008/sizeof(XPVLV), XPVLV);
655 xpvlv = PL_xpvlv_root;
656 xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1];
657 while (xpvlv < xpvlvend) {
658 xpvlv->xpv_pv = (char*)(xpvlv + 1);
672 xpvbm = PL_xpvbm_root;
673 PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv;
679 S_del_xpvbm(pTHX_ XPVBM *p)
682 p->xpv_pv = (char*)PL_xpvbm_root;
691 register XPVBM* xpvbm;
692 register XPVBM* xpvbmend;
693 New(721, PL_xpvbm_root, 1008/sizeof(XPVBM), XPVBM);
694 xpvbm = PL_xpvbm_root;
695 xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1];
696 while (xpvbm < xpvbmend) {
697 xpvbm->xpv_pv = (char*)(xpvbm + 1);
704 # define my_safemalloc(s) (void*)safexmalloc(717,s)
705 # define my_safefree(p) safexfree((char*)p)
707 # define my_safemalloc(s) (void*)safemalloc(s)
708 # define my_safefree(p) safefree((char*)p)
713 #define new_XIV() my_safemalloc(sizeof(XPVIV))
714 #define del_XIV(p) my_safefree(p)
716 #define new_XNV() my_safemalloc(sizeof(XPVNV))
717 #define del_XNV(p) my_safefree(p)
719 #define new_XRV() my_safemalloc(sizeof(XRV))
720 #define del_XRV(p) my_safefree(p)
722 #define new_XPV() my_safemalloc(sizeof(XPV))
723 #define del_XPV(p) my_safefree(p)
725 #define new_XPVIV() my_safemalloc(sizeof(XPVIV))
726 #define del_XPVIV(p) my_safefree(p)
728 #define new_XPVNV() my_safemalloc(sizeof(XPVNV))
729 #define del_XPVNV(p) my_safefree(p)
731 #define new_XPVCV() my_safemalloc(sizeof(XPVCV))
732 #define del_XPVCV(p) my_safefree(p)
734 #define new_XPVAV() my_safemalloc(sizeof(XPVAV))
735 #define del_XPVAV(p) my_safefree(p)
737 #define new_XPVHV() my_safemalloc(sizeof(XPVHV))
738 #define del_XPVHV(p) my_safefree(p)
740 #define new_XPVMG() my_safemalloc(sizeof(XPVMG))
741 #define del_XPVMG(p) my_safefree(p)
743 #define new_XPVLV() my_safemalloc(sizeof(XPVLV))
744 #define del_XPVLV(p) my_safefree(p)
746 #define new_XPVBM() my_safemalloc(sizeof(XPVBM))
747 #define del_XPVBM(p) my_safefree(p)
751 #define new_XIV() (void*)new_xiv()
752 #define del_XIV(p) del_xiv((XPVIV*) p)
754 #define new_XNV() (void*)new_xnv()
755 #define del_XNV(p) del_xnv((XPVNV*) p)
757 #define new_XRV() (void*)new_xrv()
758 #define del_XRV(p) del_xrv((XRV*) p)
760 #define new_XPV() (void*)new_xpv()
761 #define del_XPV(p) del_xpv((XPV *)p)
763 #define new_XPVIV() (void*)new_xpviv()
764 #define del_XPVIV(p) del_xpviv((XPVIV *)p)
766 #define new_XPVNV() (void*)new_xpvnv()
767 #define del_XPVNV(p) del_xpvnv((XPVNV *)p)
769 #define new_XPVCV() (void*)new_xpvcv()
770 #define del_XPVCV(p) del_xpvcv((XPVCV *)p)
772 #define new_XPVAV() (void*)new_xpvav()
773 #define del_XPVAV(p) del_xpvav((XPVAV *)p)
775 #define new_XPVHV() (void*)new_xpvhv()
776 #define del_XPVHV(p) del_xpvhv((XPVHV *)p)
778 #define new_XPVMG() (void*)new_xpvmg()
779 #define del_XPVMG(p) del_xpvmg((XPVMG *)p)
781 #define new_XPVLV() (void*)new_xpvlv()
782 #define del_XPVLV(p) del_xpvlv((XPVLV *)p)
784 #define new_XPVBM() (void*)new_xpvbm()
785 #define del_XPVBM(p) del_xpvbm((XPVBM *)p)
789 #define new_XPVGV() my_safemalloc(sizeof(XPVGV))
790 #define del_XPVGV(p) my_safefree(p)
792 #define new_XPVFM() my_safemalloc(sizeof(XPVFM))
793 #define del_XPVFM(p) my_safefree(p)
795 #define new_XPVIO() my_safemalloc(sizeof(XPVIO))
796 #define del_XPVIO(p) my_safefree(p)
799 =for apidoc sv_upgrade
801 Upgrade an SV to a more complex form. Use C<SvUPGRADE>. See
808 Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt)
818 if (SvTYPE(sv) == mt)
824 switch (SvTYPE(sv)) {
845 else if (mt < SVt_PVIV)
862 pv = (char*)SvRV(sv);
882 else if (mt == SVt_NV)
893 del_XPVIV(SvANY(sv));
903 del_XPVNV(SvANY(sv));
913 del_XPVMG(SvANY(sv));
916 Perl_croak(aTHX_ "Can't upgrade that kind of scalar");
921 Perl_croak(aTHX_ "Can't upgrade to undef");
923 SvANY(sv) = new_XIV();
927 SvANY(sv) = new_XNV();
931 SvANY(sv) = new_XRV();
935 SvANY(sv) = new_XPV();
941 SvANY(sv) = new_XPVIV();
951 SvANY(sv) = new_XPVNV();
959 SvANY(sv) = new_XPVMG();
969 SvANY(sv) = new_XPVLV();
983 SvANY(sv) = new_XPVAV();
998 SvANY(sv) = new_XPVHV();
1006 SvMAGIC(sv) = magic;
1007 SvSTASH(sv) = stash;
1014 SvANY(sv) = new_XPVCV();
1015 Zero(SvANY(sv), 1, XPVCV);
1021 SvMAGIC(sv) = magic;
1022 SvSTASH(sv) = stash;
1025 SvANY(sv) = new_XPVGV();
1031 SvMAGIC(sv) = magic;
1032 SvSTASH(sv) = stash;
1040 SvANY(sv) = new_XPVBM();
1046 SvMAGIC(sv) = magic;
1047 SvSTASH(sv) = stash;
1053 SvANY(sv) = new_XPVFM();
1054 Zero(SvANY(sv), 1, XPVFM);
1060 SvMAGIC(sv) = magic;
1061 SvSTASH(sv) = stash;
1064 SvANY(sv) = new_XPVIO();
1065 Zero(SvANY(sv), 1, XPVIO);
1071 SvMAGIC(sv) = magic;
1072 SvSTASH(sv) = stash;
1073 IoPAGE_LEN(sv) = 60;
1076 SvFLAGS(sv) &= ~SVTYPEMASK;
1082 Perl_sv_backoff(pTHX_ register SV *sv)
1086 char *s = SvPVX(sv);
1087 SvLEN(sv) += SvIVX(sv);
1088 SvPVX(sv) -= SvIVX(sv);
1090 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1092 SvFLAGS(sv) &= ~SVf_OOK;
1099 Expands the character buffer in the SV. This will use C<sv_unref> and will
1100 upgrade the SV to C<SVt_PV>. Returns a pointer to the character buffer.
1107 Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen)
1111 #ifdef HAS_64K_LIMIT
1112 if (newlen >= 0x10000) {
1113 PerlIO_printf(Perl_debug_log,
1114 "Allocation too large: %"UVxf"\n", (UV)newlen);
1117 #endif /* HAS_64K_LIMIT */
1120 if (SvTYPE(sv) < SVt_PV) {
1121 sv_upgrade(sv, SVt_PV);
1124 else if (SvOOK(sv)) { /* pv is offset? */
1127 if (newlen > SvLEN(sv))
1128 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1129 #ifdef HAS_64K_LIMIT
1130 if (newlen >= 0x10000)
1136 if (newlen > SvLEN(sv)) { /* need more room? */
1137 if (SvLEN(sv) && s) {
1138 #if defined(MYMALLOC) && !defined(LEAKTEST)
1139 STRLEN l = malloced_size((void*)SvPVX(sv));
1145 Renew(s,newlen,char);
1148 New(703,s,newlen,char);
1150 SvLEN_set(sv, newlen);
1156 =for apidoc sv_setiv
1158 Copies an integer into the given SV. Does not handle 'set' magic. See
1165 Perl_sv_setiv(pTHX_ register SV *sv, IV i)
1167 SV_CHECK_THINKFIRST(sv);
1168 switch (SvTYPE(sv)) {
1170 sv_upgrade(sv, SVt_IV);
1173 sv_upgrade(sv, SVt_PVNV);
1177 sv_upgrade(sv, SVt_PVIV);
1188 Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0),
1189 PL_op_desc[PL_op->op_type]);
1192 (void)SvIOK_only(sv); /* validate number */
1198 =for apidoc sv_setiv_mg
1200 Like C<sv_setiv>, but also handles 'set' magic.
1206 Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i)
1213 =for apidoc sv_setuv
1215 Copies an unsigned integer into the given SV. Does not handle 'set' magic.
1222 Perl_sv_setuv(pTHX_ register SV *sv, UV u)
1230 =for apidoc sv_setuv_mg
1232 Like C<sv_setuv>, but also handles 'set' magic.
1238 Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u)
1245 =for apidoc sv_setnv
1247 Copies a double into the given SV. Does not handle 'set' magic. See
1254 Perl_sv_setnv(pTHX_ register SV *sv, NV num)
1256 SV_CHECK_THINKFIRST(sv);
1257 switch (SvTYPE(sv)) {
1260 sv_upgrade(sv, SVt_NV);
1265 sv_upgrade(sv, SVt_PVNV);
1276 Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0),
1277 PL_op_name[PL_op->op_type]);
1281 (void)SvNOK_only(sv); /* validate number */
1286 =for apidoc sv_setnv_mg
1288 Like C<sv_setnv>, but also handles 'set' magic.
1294 Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num)
1301 S_not_a_number(pTHX_ SV *sv)
1307 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1308 /* each *s can expand to 4 chars + "...\0",
1309 i.e. need room for 8 chars */
1311 for (s = SvPVX(sv); *s && d < limit; s++) {
1313 if (ch & 128 && !isPRINT_LC(ch)) {
1322 else if (ch == '\r') {
1326 else if (ch == '\f') {
1330 else if (ch == '\\') {
1334 else if (isPRINT_LC(ch))
1349 Perl_warner(aTHX_ WARN_NUMERIC,
1350 "Argument \"%s\" isn't numeric in %s", tmpbuf,
1351 PL_op_desc[PL_op->op_type]);
1353 Perl_warner(aTHX_ WARN_NUMERIC,
1354 "Argument \"%s\" isn't numeric", tmpbuf);
1357 /* the number can be converted to integer with atol() or atoll() */
1358 #define IS_NUMBER_TO_INT_BY_ATOL 0x01
1359 #define IS_NUMBER_TO_INT_BY_ATOF 0x02 /* atol() may be != atof() */
1360 #define IS_NUMBER_NOT_IV 0x04 /* (IV)atof() may be != atof() */
1361 #define IS_NUMBER_NEG 0x08 /* not good to cache UV */
1363 /* Actually, ISO C leaves conversion of UV to IV undefined, but
1364 until proven guilty, assume that things are not that bad... */
1367 Perl_sv_2iv(pTHX_ register SV *sv)
1371 if (SvGMAGICAL(sv)) {
1376 return I_V(SvNVX(sv));
1378 if (SvPOKp(sv) && SvLEN(sv))
1381 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1383 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1389 if (SvTHINKFIRST(sv)) {
1392 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1393 return SvIV(tmpstr);
1394 return PTR2IV(SvRV(sv));
1396 if (SvREADONLY(sv) && !SvOK(sv)) {
1398 if (ckWARN(WARN_UNINITIALIZED))
1405 return (IV)(SvUVX(sv));
1412 /* We can cache the IV/UV value even if it not good enough
1413 * to reconstruct NV, since the conversion to PV will prefer
1417 if (SvTYPE(sv) == SVt_NV)
1418 sv_upgrade(sv, SVt_PVNV);
1421 if (SvNVX(sv) < (NV)IV_MAX + 0.5)
1422 SvIVX(sv) = I_V(SvNVX(sv));
1424 SvUVX(sv) = U_V(SvNVX(sv));
1427 DEBUG_c(PerlIO_printf(Perl_debug_log,
1428 "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n",
1432 return (IV)SvUVX(sv);
1435 else if (SvPOKp(sv) && SvLEN(sv)) {
1436 I32 numtype = looks_like_number(sv);
1438 /* We want to avoid a possible problem when we cache an IV which
1439 may be later translated to an NV, and the resulting NV is not
1440 the translation of the initial data.
1442 This means that if we cache such an IV, we need to cache the
1443 NV as well. Moreover, we trade speed for space, and do not
1444 cache the NV if not needed.
1446 if (numtype & IS_NUMBER_NOT_IV) {
1447 /* May be not an integer. Need to cache NV if we cache IV
1448 * - otherwise future conversion to NV will be wrong. */
1451 d = Atof(SvPVX(sv));
1453 if (SvTYPE(sv) < SVt_PVNV)
1454 sv_upgrade(sv, SVt_PVNV);
1458 #if defined(USE_LONG_DOUBLE)
1459 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n",
1460 PTR2UV(sv), SvNVX(sv)));
1462 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%g)\n",
1463 PTR2UV(sv), SvNVX(sv)));
1465 if (SvNVX(sv) < (NV)IV_MAX + 0.5)
1466 SvIVX(sv) = I_V(SvNVX(sv));
1468 SvUVX(sv) = U_V(SvNVX(sv));
1474 /* The NV may be reconstructed from IV - safe to cache IV,
1475 which may be calculated by atol(). */
1476 if (SvTYPE(sv) == SVt_PV)
1477 sv_upgrade(sv, SVt_PVIV);
1479 SvIVX(sv) = Atol(SvPVX(sv));
1481 else { /* Not a number. Cache 0. */
1484 if (SvTYPE(sv) < SVt_PVIV)
1485 sv_upgrade(sv, SVt_PVIV);
1488 if (ckWARN(WARN_NUMERIC))
1494 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1496 if (SvTYPE(sv) < SVt_IV)
1497 /* Typically the caller expects that sv_any is not NULL now. */
1498 sv_upgrade(sv, SVt_IV);
1501 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n",
1502 PTR2UV(sv),SvIVX(sv)));
1503 return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv);
1507 Perl_sv_2uv(pTHX_ register SV *sv)
1511 if (SvGMAGICAL(sv)) {
1516 return U_V(SvNVX(sv));
1517 if (SvPOKp(sv) && SvLEN(sv))
1520 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1522 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1528 if (SvTHINKFIRST(sv)) {
1531 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1532 return SvUV(tmpstr);
1533 return PTR2UV(SvRV(sv));
1535 if (SvREADONLY(sv) && !SvOK(sv)) {
1537 if (ckWARN(WARN_UNINITIALIZED))
1547 return (UV)SvIVX(sv);
1551 /* We can cache the IV/UV value even if it not good enough
1552 * to reconstruct NV, since the conversion to PV will prefer
1555 if (SvTYPE(sv) == SVt_NV)
1556 sv_upgrade(sv, SVt_PVNV);
1558 if (SvNVX(sv) >= -0.5) {
1560 SvUVX(sv) = U_V(SvNVX(sv));
1563 SvIVX(sv) = I_V(SvNVX(sv));
1565 DEBUG_c(PerlIO_printf(Perl_debug_log,
1566 "0x%"UVxf" 2uv(%"IVdf" => %"IVdf") (as signed)\n",
1569 (IV)(UV)SvIVX(sv)));
1570 return (UV)SvIVX(sv);
1573 else if (SvPOKp(sv) && SvLEN(sv)) {
1574 I32 numtype = looks_like_number(sv);
1576 /* We want to avoid a possible problem when we cache a UV which
1577 may be later translated to an NV, and the resulting NV is not
1578 the translation of the initial data.
1580 This means that if we cache such a UV, we need to cache the
1581 NV as well. Moreover, we trade speed for space, and do not
1582 cache the NV if not needed.
1584 if (numtype & IS_NUMBER_NOT_IV) {
1585 /* May be not an integer. Need to cache NV if we cache IV
1586 * - otherwise future conversion to NV will be wrong. */
1589 d = Atof(SvPVX(sv));
1591 if (SvTYPE(sv) < SVt_PVNV)
1592 sv_upgrade(sv, SVt_PVNV);
1596 #if defined(USE_LONG_DOUBLE)
1597 DEBUG_c(PerlIO_printf(Perl_debug_log,
1598 "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n",
1599 PTR2UV(sv), SvNVX(sv)));
1601 DEBUG_c(PerlIO_printf(Perl_debug_log,
1602 "0x%"UVxf" 2nv(%g)\n",
1603 PTR2UV(sv), SvNVX(sv)));
1605 if (SvNVX(sv) < -0.5) {
1606 SvIVX(sv) = I_V(SvNVX(sv));
1609 SvUVX(sv) = U_V(SvNVX(sv));
1613 else if (numtype & IS_NUMBER_NEG) {
1614 /* The NV may be reconstructed from IV - safe to cache IV,
1615 which may be calculated by atol(). */
1616 if (SvTYPE(sv) == SVt_PV)
1617 sv_upgrade(sv, SVt_PVIV);
1619 SvIVX(sv) = (IV)Atol(SvPVX(sv));
1621 else if (numtype) { /* Non-negative */
1622 /* The NV may be reconstructed from UV - safe to cache UV,
1623 which may be calculated by strtoul()/atol. */
1624 if (SvTYPE(sv) == SVt_PV)
1625 sv_upgrade(sv, SVt_PVIV);
1627 (void)SvIsUV_on(sv);
1629 SvUVX(sv) = Strtoul(SvPVX(sv), Null(char**), 10);
1630 #else /* no atou(), but we know the number fits into IV... */
1631 /* The only problem may be if it is negative... */
1632 SvUVX(sv) = (UV)Atol(SvPVX(sv));
1635 else { /* Not a number. Cache 0. */
1638 if (SvTYPE(sv) < SVt_PVIV)
1639 sv_upgrade(sv, SVt_PVIV);
1640 SvUVX(sv) = 0; /* We assume that 0s have the
1641 same bitmap in IV and UV. */
1643 (void)SvIsUV_on(sv);
1644 if (ckWARN(WARN_NUMERIC))
1649 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1651 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1654 if (SvTYPE(sv) < SVt_IV)
1655 /* Typically the caller expects that sv_any is not NULL now. */
1656 sv_upgrade(sv, SVt_IV);
1660 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n",
1661 PTR2UV(sv),SvUVX(sv)));
1662 return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv);
1666 Perl_sv_2nv(pTHX_ register SV *sv)
1670 if (SvGMAGICAL(sv)) {
1674 if (SvPOKp(sv) && SvLEN(sv)) {
1676 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1678 return Atof(SvPVX(sv));
1682 return (NV)SvUVX(sv);
1684 return (NV)SvIVX(sv);
1687 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1689 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1695 if (SvTHINKFIRST(sv)) {
1698 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1699 return SvNV(tmpstr);
1700 return PTR2NV(SvRV(sv));
1702 if (SvREADONLY(sv) && !SvOK(sv)) {
1704 if (ckWARN(WARN_UNINITIALIZED))
1709 if (SvTYPE(sv) < SVt_NV) {
1710 if (SvTYPE(sv) == SVt_IV)
1711 sv_upgrade(sv, SVt_PVNV);
1713 sv_upgrade(sv, SVt_NV);
1714 #if defined(USE_LONG_DOUBLE)
1716 RESTORE_NUMERIC_STANDARD();
1717 PerlIO_printf(Perl_debug_log,
1718 "0x%"UVxf" num(%" PERL_PRIgldbl ")\n",
1719 PTR2UV(sv), SvNVX(sv));
1720 RESTORE_NUMERIC_LOCAL();
1724 RESTORE_NUMERIC_STANDARD();
1725 PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n",
1726 PTR2UV(sv), SvNVX(sv));
1727 RESTORE_NUMERIC_LOCAL();
1731 else if (SvTYPE(sv) < SVt_PVNV)
1732 sv_upgrade(sv, SVt_PVNV);
1734 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1736 SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv);
1738 else if (SvPOKp(sv) && SvLEN(sv)) {
1740 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1742 SvNVX(sv) = Atof(SvPVX(sv));
1746 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1748 if (SvTYPE(sv) < SVt_NV)
1749 /* Typically the caller expects that sv_any is not NULL now. */
1750 sv_upgrade(sv, SVt_NV);
1754 #if defined(USE_LONG_DOUBLE)
1756 RESTORE_NUMERIC_STANDARD();
1757 PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n",
1758 PTR2UV(sv), SvNVX(sv));
1759 RESTORE_NUMERIC_LOCAL();
1763 RESTORE_NUMERIC_STANDARD();
1764 PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n",
1765 PTR2UV(sv), SvNVX(sv));
1766 RESTORE_NUMERIC_LOCAL();
1773 S_asIV(pTHX_ SV *sv)
1775 I32 numtype = looks_like_number(sv);
1778 if (numtype & IS_NUMBER_TO_INT_BY_ATOL)
1779 return Atol(SvPVX(sv));
1782 if (ckWARN(WARN_NUMERIC))
1785 d = Atof(SvPVX(sv));
1790 S_asUV(pTHX_ SV *sv)
1792 I32 numtype = looks_like_number(sv);
1795 if (numtype & IS_NUMBER_TO_INT_BY_ATOL)
1796 return Strtoul(SvPVX(sv), Null(char**), 10);
1800 if (ckWARN(WARN_NUMERIC))
1803 return U_V(Atof(SvPVX(sv)));
1807 * Returns a combination of (advisory only - can get false negatives)
1808 * IS_NUMBER_TO_INT_BY_ATOL, IS_NUMBER_TO_INT_BY_ATOF, IS_NUMBER_NOT_IV,
1810 * 0 if does not look like number.
1812 * In fact possible values are 0 and
1813 * IS_NUMBER_TO_INT_BY_ATOL 123
1814 * IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV 123.1
1815 * IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV 123e0
1816 * with a possible addition of IS_NUMBER_NEG.
1820 =for apidoc looks_like_number
1822 Test if an the content of an SV looks like a number (or is a
1829 Perl_looks_like_number(pTHX_ SV *sv)
1832 register char *send;
1833 register char *sbegin;
1834 register char *nbegin;
1842 else if (SvPOKp(sv))
1843 sbegin = SvPV(sv, len);
1846 send = sbegin + len;
1853 numtype = IS_NUMBER_NEG;
1860 * we return IS_NUMBER_TO_INT_BY_ATOL if the number can be converted
1861 * to _integer_ with atol() and IS_NUMBER_TO_INT_BY_ATOF if you need
1865 /* next must be digit or the radix separator */
1869 } while (isDIGIT(*s));
1871 if (s - nbegin >= TYPE_DIGITS(IV)) /* Cannot cache ato[ul]() */
1872 numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV;
1874 numtype |= IS_NUMBER_TO_INT_BY_ATOL;
1877 #ifdef USE_LOCALE_NUMERIC
1878 || IS_NUMERIC_RADIX(*s)
1882 numtype |= IS_NUMBER_NOT_IV;
1883 while (isDIGIT(*s)) /* optional digits after the radix */
1888 #ifdef USE_LOCALE_NUMERIC
1889 || IS_NUMERIC_RADIX(*s)
1893 numtype |= IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV;
1894 /* no digits before the radix means we need digits after it */
1898 } while (isDIGIT(*s));
1906 /* we can have an optional exponent part */
1907 if (*s == 'e' || *s == 'E') {
1908 numtype &= ~IS_NUMBER_NEG;
1909 numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV;
1911 if (*s == '+' || *s == '-')
1916 } while (isDIGIT(*s));
1925 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1926 return IS_NUMBER_TO_INT_BY_ATOL;
1931 Perl_sv_2pv_nolen(pTHX_ register SV *sv)
1934 return sv_2pv(sv, &n_a);
1937 /* We assume that buf is at least TYPE_CHARS(UV) long. */
1939 uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob)
1941 char *ptr = buf + TYPE_CHARS(UV);
1955 *--ptr = '0' + (uv % 10);
1964 Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp)
1969 char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1970 char *tmpbuf = tbuf;
1976 if (SvGMAGICAL(sv)) {
1984 (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv));
1986 (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv));
1991 Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf);
1996 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1998 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
2005 if (SvTHINKFIRST(sv)) {
2008 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
2009 return SvPV(tmpstr,*lp);
2016 switch (SvTYPE(sv)) {
2018 if ( ((SvFLAGS(sv) &
2019 (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG))
2020 == (SVs_OBJECT|SVs_RMG))
2021 && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp")
2022 && (mg = mg_find(sv, 'r'))) {
2024 regexp *re = (regexp *)mg->mg_obj;
2027 char *fptr = "msix";
2032 U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12;
2034 while((ch = *fptr++)) {
2036 reflags[left++] = ch;
2039 reflags[right--] = ch;
2044 reflags[left] = '-';
2048 mg->mg_len = re->prelen + 4 + left;
2049 New(616, mg->mg_ptr, mg->mg_len + 1 + left, char);
2050 Copy("(?", mg->mg_ptr, 2, char);
2051 Copy(reflags, mg->mg_ptr+2, left, char);
2052 Copy(":", mg->mg_ptr+left+2, 1, char);
2053 Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char);
2054 mg->mg_ptr[mg->mg_len - 1] = ')';
2055 mg->mg_ptr[mg->mg_len] = 0;
2057 PL_reginterp_cnt += re->program[0].next_off;
2069 case SVt_PVBM: s = "SCALAR"; break;
2070 case SVt_PVLV: s = "LVALUE"; break;
2071 case SVt_PVAV: s = "ARRAY"; break;
2072 case SVt_PVHV: s = "HASH"; break;
2073 case SVt_PVCV: s = "CODE"; break;
2074 case SVt_PVGV: s = "GLOB"; break;
2075 case SVt_PVFM: s = "FORMAT"; break;
2076 case SVt_PVIO: s = "IO"; break;
2077 default: s = "UNKNOWN"; break;
2081 Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
2084 Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv));
2090 if (SvREADONLY(sv) && !SvOK(sv)) {
2092 if (ckWARN(WARN_UNINITIALIZED))
2098 if (SvNOKp(sv)) { /* See note in sv_2uv() */
2099 /* XXXX 64-bit? IV may have better precision... */
2100 /* I tried changing this for to be 64-bit-aware and
2101 * the t/op/numconvert.t became very, very, angry.
2103 if (SvTYPE(sv) < SVt_PVNV)
2104 sv_upgrade(sv, SVt_PVNV);
2107 olderrno = errno; /* some Xenix systems wipe out errno here */
2109 if (SvNVX(sv) == 0.0)
2110 (void)strcpy(s,"0");
2114 Gconvert(SvNVX(sv), NV_DIG, 0, s);
2117 #ifdef FIXNEGATIVEZERO
2118 if (*s == '-' && s[1] == '0' && !s[2])
2127 else if (SvIOKp(sv)) {
2128 U32 isIOK = SvIOK(sv);
2129 U32 isUIOK = SvIsUV(sv);
2130 char buf[TYPE_CHARS(UV)];
2133 if (SvTYPE(sv) < SVt_PVIV)
2134 sv_upgrade(sv, SVt_PVIV);
2136 ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf);
2138 ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf);
2139 SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */
2140 Move(ptr,SvPVX(sv),ebuf - ptr,char);
2141 SvCUR_set(sv, ebuf - ptr);
2154 if (ckWARN(WARN_UNINITIALIZED)
2155 && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
2160 if (SvTYPE(sv) < SVt_PV)
2161 /* Typically the caller expects that sv_any is not NULL now. */
2162 sv_upgrade(sv, SVt_PV);
2165 *lp = s - SvPVX(sv);
2168 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n",
2169 PTR2UV(sv),SvPVX(sv)));
2173 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
2174 /* Sneaky stuff here */
2178 tsv = newSVpv(tmpbuf, 0);
2194 len = strlen(tmpbuf);
2196 #ifdef FIXNEGATIVEZERO
2197 if (len == 2 && t[0] == '-' && t[1] == '0') {
2202 (void)SvUPGRADE(sv, SVt_PV);
2204 s = SvGROW(sv, len + 1);
2213 Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv)
2216 return sv_2pvbyte(sv, &n_a);
2220 Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp)
2222 return sv_2pv(sv,lp);
2226 Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv)
2229 return sv_2pvutf8(sv, &n_a);
2233 Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp)
2235 sv_utf8_upgrade(sv);
2236 return sv_2pv(sv,lp);
2239 /* This function is only called on magical items */
2241 Perl_sv_2bool(pTHX_ register SV *sv)
2251 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
2252 return SvTRUE(tmpsv);
2253 return SvRV(sv) != 0;
2256 register XPV* Xpvtmp;
2257 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
2258 (*Xpvtmp->xpv_pv > '0' ||
2259 Xpvtmp->xpv_cur > 1 ||
2260 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
2267 return SvIVX(sv) != 0;
2270 return SvNVX(sv) != 0.0;
2278 Perl_sv_utf8_upgrade(pTHX_ register SV *sv)
2283 if (!sv || !SvPOK(sv) || SvUTF8(sv))
2286 /* This function could be much more efficient if we had a FLAG
2287 * to signal if there are any hibit chars in the string
2290 for (c = SvPVX(sv); c < SvEND(sv); c++) {
2297 SvGROW(sv, SvCUR(sv) + hicount + 1);
2299 src = SvEND(sv) - 1;
2300 SvCUR_set(sv, SvCUR(sv) + hicount);
2301 dst = SvEND(sv) - 1;
2306 uv_to_utf8((U8*)dst, (U8)*src--);
2319 Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok)
2321 if (SvPOK(sv) && SvUTF8(sv)) {
2322 char *c = SvPVX(sv);
2324 /* need to figure out if this is possible at all first */
2325 while (c < SvEND(sv)) {
2328 UV uv = utf8_to_uv((U8*)c, &len);
2333 /* XXX might want to make a callback here instead */
2334 Perl_croak(aTHX_ "Big byte");
2347 char *src = first_hi;
2348 char *dst = first_hi;
2349 while (src < SvEND(sv)) {
2352 U8 u = (U8)utf8_to_uv((U8*)src, &len);
2360 SvCUR_set(sv, dst - SvPVX(sv));
2368 Perl_sv_utf8_encode(pTHX_ register SV *sv)
2370 sv_utf8_upgrade(sv);
2375 Perl_sv_utf8_decode(pTHX_ register SV *sv)
2379 bool has_utf = FALSE;
2380 if (!sv_utf8_downgrade(sv, TRUE))
2383 /* it is actually just a matter of turning the utf8 flag on, but
2384 * we want to make sure everything inside is valid utf8 first.
2387 while (c < SvEND(sv)) {
2390 (void)utf8_to_uv((U8*)c, &len);
2410 /* Note: sv_setsv() should not be called with a source string that needs
2411 * to be reused, since it may destroy the source string if it is marked
2416 =for apidoc sv_setsv
2418 Copies the contents of the source SV C<ssv> into the destination SV C<dsv>.
2419 The source SV may be destroyed if it is mortal. Does not handle 'set'
2420 magic. See the macro forms C<SvSetSV>, C<SvSetSV_nosteal> and
2427 Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr)
2430 register U32 sflags;
2436 SV_CHECK_THINKFIRST(dstr);
2438 sstr = &PL_sv_undef;
2439 stype = SvTYPE(sstr);
2440 dtype = SvTYPE(dstr);
2444 /* There's a lot of redundancy below but we're going for speed here */
2449 if (dtype != SVt_PVGV) {
2450 (void)SvOK_off(dstr);
2458 sv_upgrade(dstr, SVt_IV);
2461 sv_upgrade(dstr, SVt_PVNV);
2465 sv_upgrade(dstr, SVt_PVIV);
2468 (void)SvIOK_only(dstr);
2469 SvIVX(dstr) = SvIVX(sstr);
2482 sv_upgrade(dstr, SVt_NV);
2487 sv_upgrade(dstr, SVt_PVNV);
2490 SvNVX(dstr) = SvNVX(sstr);
2491 (void)SvNOK_only(dstr);
2499 sv_upgrade(dstr, SVt_RV);
2500 else if (dtype == SVt_PVGV &&
2501 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
2504 if (GvIMPORTED(dstr) != GVf_IMPORTED
2505 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2507 GvIMPORTED_on(dstr);
2518 sv_upgrade(dstr, SVt_PV);
2521 if (dtype < SVt_PVIV)
2522 sv_upgrade(dstr, SVt_PVIV);
2525 if (dtype < SVt_PVNV)
2526 sv_upgrade(dstr, SVt_PVNV);
2533 Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0),
2534 PL_op_name[PL_op->op_type]);
2536 Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0));
2540 if (dtype <= SVt_PVGV) {
2542 if (dtype != SVt_PVGV) {
2543 char *name = GvNAME(sstr);
2544 STRLEN len = GvNAMELEN(sstr);
2545 sv_upgrade(dstr, SVt_PVGV);
2546 sv_magic(dstr, dstr, '*', name, len);
2547 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
2548 GvNAME(dstr) = savepvn(name, len);
2549 GvNAMELEN(dstr) = len;
2550 SvFAKE_on(dstr); /* can coerce to non-glob */
2552 /* ahem, death to those who redefine active sort subs */
2553 else if (PL_curstackinfo->si_type == PERLSI_SORT
2554 && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr)))
2555 Perl_croak(aTHX_ "Can't redefine active sort subroutine %s",
2557 (void)SvOK_off(dstr);
2558 GvINTRO_off(dstr); /* one-shot flag */
2560 GvGP(dstr) = gp_ref(GvGP(sstr));
2562 if (GvIMPORTED(dstr) != GVf_IMPORTED
2563 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2565 GvIMPORTED_on(dstr);
2573 if (SvGMAGICAL(sstr)) {
2575 if (SvTYPE(sstr) != stype) {
2576 stype = SvTYPE(sstr);
2577 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2581 if (stype == SVt_PVLV)
2582 (void)SvUPGRADE(dstr, SVt_PVNV);
2584 (void)SvUPGRADE(dstr, stype);
2587 sflags = SvFLAGS(sstr);
2589 if (sflags & SVf_ROK) {
2590 if (dtype >= SVt_PV) {
2591 if (dtype == SVt_PVGV) {
2592 SV *sref = SvREFCNT_inc(SvRV(sstr));
2594 int intro = GvINTRO(dstr);
2599 GvINTRO_off(dstr); /* one-shot flag */
2600 Newz(602,gp, 1, GP);
2601 GvGP(dstr) = gp_ref(gp);
2602 GvSV(dstr) = NEWSV(72,0);
2603 GvLINE(dstr) = CopLINE(PL_curcop);
2604 GvEGV(dstr) = (GV*)dstr;
2607 switch (SvTYPE(sref)) {
2610 SAVESPTR(GvAV(dstr));
2612 dref = (SV*)GvAV(dstr);
2613 GvAV(dstr) = (AV*)sref;
2614 if (!GvIMPORTED_AV(dstr)
2615 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2617 GvIMPORTED_AV_on(dstr);
2622 SAVESPTR(GvHV(dstr));
2624 dref = (SV*)GvHV(dstr);
2625 GvHV(dstr) = (HV*)sref;
2626 if (!GvIMPORTED_HV(dstr)
2627 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2629 GvIMPORTED_HV_on(dstr);
2634 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2635 SvREFCNT_dec(GvCV(dstr));
2636 GvCV(dstr) = Nullcv;
2637 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2638 PL_sub_generation++;
2640 SAVESPTR(GvCV(dstr));
2643 dref = (SV*)GvCV(dstr);
2644 if (GvCV(dstr) != (CV*)sref) {
2645 CV* cv = GvCV(dstr);
2647 if (!GvCVGEN((GV*)dstr) &&
2648 (CvROOT(cv) || CvXSUB(cv)))
2650 SV *const_sv = cv_const_sv(cv);
2651 bool const_changed = TRUE;
2653 const_changed = sv_cmp(const_sv,
2654 op_const_sv(CvSTART((CV*)sref),
2656 /* ahem, death to those who redefine
2657 * active sort subs */
2658 if (PL_curstackinfo->si_type == PERLSI_SORT &&
2659 PL_sortcop == CvSTART(cv))
2661 "Can't redefine active sort subroutine %s",
2662 GvENAME((GV*)dstr));
2663 if ((const_changed || const_sv) && ckWARN(WARN_REDEFINE))
2664 Perl_warner(aTHX_ WARN_REDEFINE, const_sv ?
2665 "Constant subroutine %s redefined"
2666 : "Subroutine %s redefined",
2667 GvENAME((GV*)dstr));
2669 cv_ckproto(cv, (GV*)dstr,
2670 SvPOK(sref) ? SvPVX(sref) : Nullch);
2672 GvCV(dstr) = (CV*)sref;
2673 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2674 GvASSUMECV_on(dstr);
2675 PL_sub_generation++;
2677 if (!GvIMPORTED_CV(dstr)
2678 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2680 GvIMPORTED_CV_on(dstr);
2685 SAVESPTR(GvIOp(dstr));
2687 dref = (SV*)GvIOp(dstr);
2688 GvIOp(dstr) = (IO*)sref;
2692 SAVESPTR(GvSV(dstr));
2694 dref = (SV*)GvSV(dstr);
2696 if (!GvIMPORTED_SV(dstr)
2697 && CopSTASH_ne(PL_curcop, GvSTASH(dstr)))
2699 GvIMPORTED_SV_on(dstr);
2711 (void)SvOOK_off(dstr); /* backoff */
2713 Safefree(SvPVX(dstr));
2714 SvLEN(dstr)=SvCUR(dstr)=0;
2717 (void)SvOK_off(dstr);
2718 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2720 if (sflags & SVp_NOK) {
2722 SvNVX(dstr) = SvNVX(sstr);
2724 if (sflags & SVp_IOK) {
2725 (void)SvIOK_on(dstr);
2726 SvIVX(dstr) = SvIVX(sstr);
2730 if (SvAMAGIC(sstr)) {
2734 else if (sflags & SVp_POK) {
2737 * Check to see if we can just swipe the string. If so, it's a
2738 * possible small lose on short strings, but a big win on long ones.
2739 * It might even be a win on short strings if SvPVX(dstr)
2740 * has to be allocated and SvPVX(sstr) has to be freed.
2743 if (SvTEMP(sstr) && /* slated for free anyway? */
2744 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2745 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2747 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2749 SvFLAGS(dstr) &= ~SVf_OOK;
2750 Safefree(SvPVX(dstr) - SvIVX(dstr));
2752 else if (SvLEN(dstr))
2753 Safefree(SvPVX(dstr));
2755 (void)SvPOK_only(dstr);
2756 SvPV_set(dstr, SvPVX(sstr));
2757 SvLEN_set(dstr, SvLEN(sstr));
2758 SvCUR_set(dstr, SvCUR(sstr));
2765 (void)SvOK_off(sstr);
2766 SvPV_set(sstr, Nullch);
2771 else { /* have to copy actual string */
2772 STRLEN len = SvCUR(sstr);
2774 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2775 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2776 SvCUR_set(dstr, len);
2777 *SvEND(dstr) = '\0';
2778 (void)SvPOK_only(dstr);
2783 if (sflags & SVp_NOK) {
2785 SvNVX(dstr) = SvNVX(sstr);
2787 if (sflags & SVp_IOK) {
2788 (void)SvIOK_on(dstr);
2789 SvIVX(dstr) = SvIVX(sstr);
2794 else if (sflags & SVp_NOK) {
2795 SvNVX(dstr) = SvNVX(sstr);
2796 (void)SvNOK_only(dstr);
2798 (void)SvIOK_on(dstr);
2799 SvIVX(dstr) = SvIVX(sstr);
2800 /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */
2805 else if (sflags & SVp_IOK) {
2806 (void)SvIOK_only(dstr);
2807 SvIVX(dstr) = SvIVX(sstr);
2812 if (dtype == SVt_PVGV) {
2813 if (ckWARN(WARN_MISC))
2814 Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob");
2817 (void)SvOK_off(dstr);
2823 =for apidoc sv_setsv_mg
2825 Like C<sv_setsv>, but also handles 'set' magic.
2831 Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr)
2833 sv_setsv(dstr,sstr);
2838 =for apidoc sv_setpvn
2840 Copies a string into an SV. The C<len> parameter indicates the number of
2841 bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>.
2847 Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
2849 register char *dptr;
2850 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2851 elicit a warning, but it won't hurt. */
2852 SV_CHECK_THINKFIRST(sv);
2857 (void)SvUPGRADE(sv, SVt_PV);
2859 SvGROW(sv, len + 1);
2861 Move(ptr,dptr,len,char);
2864 (void)SvPOK_only(sv); /* validate pointer */
2869 =for apidoc sv_setpvn_mg
2871 Like C<sv_setpvn>, but also handles 'set' magic.
2877 Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
2879 sv_setpvn(sv,ptr,len);
2884 =for apidoc sv_setpv
2886 Copies a string into an SV. The string must be null-terminated. Does not
2887 handle 'set' magic. See C<sv_setpv_mg>.
2893 Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr)
2895 register STRLEN len;
2897 SV_CHECK_THINKFIRST(sv);
2903 (void)SvUPGRADE(sv, SVt_PV);
2905 SvGROW(sv, len + 1);
2906 Move(ptr,SvPVX(sv),len+1,char);
2908 (void)SvPOK_only(sv); /* validate pointer */
2913 =for apidoc sv_setpv_mg
2915 Like C<sv_setpv>, but also handles 'set' magic.
2921 Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr)
2928 =for apidoc sv_usepvn
2930 Tells an SV to use C<ptr> to find its string value. Normally the string is
2931 stored inside the SV but sv_usepvn allows the SV to use an outside string.
2932 The C<ptr> should point to memory that was allocated by C<malloc>. The
2933 string length, C<len>, must be supplied. This function will realloc the
2934 memory pointed to by C<ptr>, so that pointer should not be freed or used by
2935 the programmer after giving it to sv_usepvn. Does not handle 'set' magic.
2936 See C<sv_usepvn_mg>.
2942 Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len)
2944 SV_CHECK_THINKFIRST(sv);
2945 (void)SvUPGRADE(sv, SVt_PV);
2950 (void)SvOOK_off(sv);
2951 if (SvPVX(sv) && SvLEN(sv))
2952 Safefree(SvPVX(sv));
2953 Renew(ptr, len+1, char);
2956 SvLEN_set(sv, len+1);
2958 (void)SvPOK_only(sv); /* validate pointer */
2963 =for apidoc sv_usepvn_mg
2965 Like C<sv_usepvn>, but also handles 'set' magic.
2971 Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len)
2973 sv_usepvn(sv,ptr,len);
2978 Perl_sv_force_normal(pTHX_ register SV *sv)
2980 if (SvREADONLY(sv)) {
2982 if (PL_curcop != &PL_compiling)
2983 Perl_croak(aTHX_ PL_no_modify);
2987 else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2994 Efficient removal of characters from the beginning of the string buffer.
2995 SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside
2996 the string buffer. The C<ptr> becomes the first character of the adjusted
3003 Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
3007 register STRLEN delta;
3009 if (!ptr || !SvPOKp(sv))
3011 SV_CHECK_THINKFIRST(sv);
3012 if (SvTYPE(sv) < SVt_PVIV)
3013 sv_upgrade(sv,SVt_PVIV);
3016 if (!SvLEN(sv)) { /* make copy of shared string */
3017 char *pvx = SvPVX(sv);
3018 STRLEN len = SvCUR(sv);
3019 SvGROW(sv, len + 1);
3020 Move(pvx,SvPVX(sv),len,char);
3024 SvFLAGS(sv) |= SVf_OOK;
3026 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV);
3027 delta = ptr - SvPVX(sv);
3035 =for apidoc sv_catpvn
3037 Concatenates the string onto the end of the string which is in the SV. The
3038 C<len> indicates number of bytes to copy. Handles 'get' magic, but not
3039 'set' magic. See C<sv_catpvn_mg>.
3045 Perl_sv_catpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
3050 junk = SvPV_force(sv, tlen);
3051 SvGROW(sv, tlen + len + 1);
3054 Move(ptr,SvPVX(sv)+tlen,len,char);
3057 (void)SvPOK_only_UTF8(sv); /* validate pointer */
3062 =for apidoc sv_catpvn_mg
3064 Like C<sv_catpvn>, but also handles 'set' magic.
3070 Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
3072 sv_catpvn(sv,ptr,len);
3077 =for apidoc sv_catsv
3079 Concatenates the string from SV C<ssv> onto the end of the string in SV
3080 C<dsv>. Handles 'get' magic, but not 'set' magic. See C<sv_catsv_mg>.
3086 Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr)
3092 if ((s = SvPV(sstr, len))) {
3094 sv_utf8_upgrade(dstr);
3095 sv_catpvn(dstr,s,len);
3102 =for apidoc sv_catsv_mg
3104 Like C<sv_catsv>, but also handles 'set' magic.
3110 Perl_sv_catsv_mg(pTHX_ SV *dstr, register SV *sstr)
3112 sv_catsv(dstr,sstr);
3117 =for apidoc sv_catpv
3119 Concatenates the string onto the end of the string which is in the SV.
3120 Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>.
3126 Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr)
3128 register STRLEN len;
3134 junk = SvPV_force(sv, tlen);
3136 SvGROW(sv, tlen + len + 1);
3139 Move(ptr,SvPVX(sv)+tlen,len+1,char);
3141 (void)SvPOK_only_UTF8(sv); /* validate pointer */
3146 =for apidoc sv_catpv_mg
3148 Like C<sv_catpv>, but also handles 'set' magic.
3154 Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr)
3161 Perl_newSV(pTHX_ STRLEN len)
3167 sv_upgrade(sv, SVt_PV);
3168 SvGROW(sv, len + 1);
3173 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
3176 =for apidoc sv_magic
3178 Adds magic to an SV.
3184 Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen)
3188 if (SvREADONLY(sv)) {
3190 if (PL_curcop != &PL_compiling && !strchr("gBf", how))
3191 Perl_croak(aTHX_ PL_no_modify);
3193 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
3194 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
3201 (void)SvUPGRADE(sv, SVt_PVMG);
3203 Newz(702,mg, 1, MAGIC);
3204 mg->mg_moremagic = SvMAGIC(sv);
3207 if (!obj || obj == sv || how == '#' || how == 'r')
3211 mg->mg_obj = SvREFCNT_inc(obj);
3212 mg->mg_flags |= MGf_REFCOUNTED;
3215 mg->mg_len = namlen;
3218 mg->mg_ptr = savepvn(name, namlen);
3219 else if (namlen == HEf_SVKEY)
3220 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
3224 mg->mg_virtual = &PL_vtbl_sv;
3227 mg->mg_virtual = &PL_vtbl_amagic;
3230 mg->mg_virtual = &PL_vtbl_amagicelem;
3236 mg->mg_virtual = &PL_vtbl_bm;
3239 mg->mg_virtual = &PL_vtbl_regdata;
3242 mg->mg_virtual = &PL_vtbl_regdatum;
3245 mg->mg_virtual = &PL_vtbl_env;
3248 mg->mg_virtual = &PL_vtbl_fm;
3251 mg->mg_virtual = &PL_vtbl_envelem;
3254 mg->mg_virtual = &PL_vtbl_mglob;
3257 mg->mg_virtual = &PL_vtbl_isa;
3260 mg->mg_virtual = &PL_vtbl_isaelem;
3263 mg->mg_virtual = &PL_vtbl_nkeys;
3270 mg->mg_virtual = &PL_vtbl_dbline;
3274 mg->mg_virtual = &PL_vtbl_mutex;
3276 #endif /* USE_THREADS */
3277 #ifdef USE_LOCALE_COLLATE
3279 mg->mg_virtual = &PL_vtbl_collxfrm;
3281 #endif /* USE_LOCALE_COLLATE */
3283 mg->mg_virtual = &PL_vtbl_pack;
3287 mg->mg_virtual = &PL_vtbl_packelem;
3290 mg->mg_virtual = &PL_vtbl_regexp;
3293 mg->mg_virtual = &PL_vtbl_sig;
3296 mg->mg_virtual = &PL_vtbl_sigelem;
3299 mg->mg_virtual = &PL_vtbl_taint;
3303 mg->mg_virtual = &PL_vtbl_uvar;
3306 mg->mg_virtual = &PL_vtbl_vec;
3309 mg->mg_virtual = &PL_vtbl_substr;
3312 mg->mg_virtual = &PL_vtbl_defelem;
3315 mg->mg_virtual = &PL_vtbl_glob;
3318 mg->mg_virtual = &PL_vtbl_arylen;
3321 mg->mg_virtual = &PL_vtbl_pos;
3324 mg->mg_virtual = &PL_vtbl_backref;
3326 case '~': /* Reserved for use by extensions not perl internals. */
3327 /* Useful for attaching extension internal data to perl vars. */
3328 /* Note that multiple extensions may clash if magical scalars */
3329 /* etc holding private data from one are passed to another. */
3333 Perl_croak(aTHX_ "Don't know how to handle magic of type '%c'", how);
3337 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
3341 Perl_sv_unmagic(pTHX_ SV *sv, int type)
3345 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
3348 for (mg = *mgp; mg; mg = *mgp) {
3349 if (mg->mg_type == type) {
3350 MGVTBL* vtbl = mg->mg_virtual;
3351 *mgp = mg->mg_moremagic;
3352 if (vtbl && vtbl->svt_free)
3353 CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg);
3354 if (mg->mg_ptr && mg->mg_type != 'g')
3355 if (mg->mg_len >= 0)
3356 Safefree(mg->mg_ptr);
3357 else if (mg->mg_len == HEf_SVKEY)
3358 SvREFCNT_dec((SV*)mg->mg_ptr);
3359 if (mg->mg_flags & MGf_REFCOUNTED)
3360 SvREFCNT_dec(mg->mg_obj);
3364 mgp = &mg->mg_moremagic;
3368 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
3375 Perl_sv_rvweaken(pTHX_ SV *sv)
3378 if (!SvOK(sv)) /* let undefs pass */
3381 Perl_croak(aTHX_ "Can't weaken a nonreference");
3382 else if (SvWEAKREF(sv)) {
3384 if (ckWARN(WARN_MISC))
3385 Perl_warner(aTHX_ WARN_MISC, "Reference is already weak");
3389 sv_add_backref(tsv, sv);
3396 S_sv_add_backref(pTHX_ SV *tsv, SV *sv)
3400 if (SvMAGICAL(tsv) && (mg = mg_find(tsv, '<')))
3401 av = (AV*)mg->mg_obj;
3404 sv_magic(tsv, (SV*)av, '<', NULL, 0);
3405 SvREFCNT_dec(av); /* for sv_magic */
3411 S_sv_del_backref(pTHX_ SV *sv)
3418 if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, '<')))
3419 Perl_croak(aTHX_ "panic: del_backref");
3420 av = (AV *)mg->mg_obj;
3425 svp[i] = &PL_sv_undef; /* XXX */
3432 =for apidoc sv_insert
3434 Inserts a string at the specified offset/length within the SV. Similar to
3435 the Perl substr() function.
3441 Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
3445 register char *midend;
3446 register char *bigend;
3452 Perl_croak(aTHX_ "Can't modify non-existent substring");
3453 SvPV_force(bigstr, curlen);
3454 if (offset + len > curlen) {
3455 SvGROW(bigstr, offset+len+1);
3456 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
3457 SvCUR_set(bigstr, offset+len);
3461 i = littlelen - len;
3462 if (i > 0) { /* string might grow */
3463 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
3464 mid = big + offset + len;
3465 midend = bigend = big + SvCUR(bigstr);
3468 while (midend > mid) /* shove everything down */
3469 *--bigend = *--midend;
3470 Move(little,big+offset,littlelen,char);
3476 Move(little,SvPVX(bigstr)+offset,len,char);
3481 big = SvPVX(bigstr);
3484 bigend = big + SvCUR(bigstr);
3486 if (midend > bigend)
3487 Perl_croak(aTHX_ "panic: sv_insert");
3489 if (mid - big > bigend - midend) { /* faster to shorten from end */
3491 Move(little, mid, littlelen,char);
3494 i = bigend - midend;
3496 Move(midend, mid, i,char);
3500 SvCUR_set(bigstr, mid - big);
3503 else if ((i = mid - big)) { /* faster from front */
3504 midend -= littlelen;
3506 sv_chop(bigstr,midend-i);
3511 Move(little, mid, littlelen,char);
3513 else if (littlelen) {
3514 midend -= littlelen;
3515 sv_chop(bigstr,midend);
3516 Move(little,midend,littlelen,char);
3519 sv_chop(bigstr,midend);
3524 /* make sv point to what nstr did */
3527 Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv)
3530 U32 refcnt = SvREFCNT(sv);
3531 SV_CHECK_THINKFIRST(sv);
3532 if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL))
3533 Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()");
3534 if (SvMAGICAL(sv)) {
3538 sv_upgrade(nsv, SVt_PVMG);
3539 SvMAGIC(nsv) = SvMAGIC(sv);
3540 SvFLAGS(nsv) |= SvMAGICAL(sv);
3546 assert(!SvREFCNT(sv));
3547 StructCopy(nsv,sv,SV);
3548 SvREFCNT(sv) = refcnt;
3549 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
3554 Perl_sv_clear(pTHX_ register SV *sv)
3558 assert(SvREFCNT(sv) == 0);
3562 if (PL_defstash) { /* Still have a symbol table? */
3567 Zero(&tmpref, 1, SV);
3568 sv_upgrade(&tmpref, SVt_RV);
3570 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
3571 SvREFCNT(&tmpref) = 1;
3574 stash = SvSTASH(sv);
3575 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
3578 PUSHSTACKi(PERLSI_DESTROY);
3579 SvRV(&tmpref) = SvREFCNT_inc(sv);
3584 call_sv((SV*)GvCV(destructor),
3585 G_DISCARD|G_EVAL|G_KEEPERR);
3591 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
3593 del_XRV(SvANY(&tmpref));
3596 if (PL_in_clean_objs)
3597 Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'",
3599 /* DESTROY gave object new lease on life */
3605 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
3606 SvOBJECT_off(sv); /* Curse the object. */
3607 if (SvTYPE(sv) != SVt_PVIO)
3608 --PL_sv_objcount; /* XXX Might want something more general */
3611 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
3614 switch (SvTYPE(sv)) {
3617 IoIFP(sv) != PerlIO_stdin() &&
3618 IoIFP(sv) != PerlIO_stdout() &&
3619 IoIFP(sv) != PerlIO_stderr())
3621 io_close((IO*)sv, FALSE);
3623 if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP))
3624 PerlDir_close(IoDIRP(sv));
3625 IoDIRP(sv) = (DIR*)NULL;
3626 Safefree(IoTOP_NAME(sv));
3627 Safefree(IoFMT_NAME(sv));
3628 Safefree(IoBOTTOM_NAME(sv));
3643 SvREFCNT_dec(LvTARG(sv));
3647 Safefree(GvNAME(sv));
3648 /* cannot decrease stash refcount yet, as we might recursively delete
3649 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
3650 of stash until current sv is completely gone.
3651 -- JohnPC, 27 Mar 1998 */
3652 stash = GvSTASH(sv);
3658 (void)SvOOK_off(sv);
3666 SvREFCNT_dec(SvRV(sv));
3668 else if (SvPVX(sv) && SvLEN(sv))
3669 Safefree(SvPVX(sv));
3679 switch (SvTYPE(sv)) {
3695 del_XPVIV(SvANY(sv));
3698 del_XPVNV(SvANY(sv));
3701 del_XPVMG(SvANY(sv));
3704 del_XPVLV(SvANY(sv));
3707 del_XPVAV(SvANY(sv));
3710 del_XPVHV(SvANY(sv));
3713 del_XPVCV(SvANY(sv));
3716 del_XPVGV(SvANY(sv));
3717 /* code duplication for increased performance. */
3718 SvFLAGS(sv) &= SVf_BREAK;
3719 SvFLAGS(sv) |= SVTYPEMASK;
3720 /* decrease refcount of the stash that owns this GV, if any */
3722 SvREFCNT_dec(stash);
3723 return; /* not break, SvFLAGS reset already happened */
3725 del_XPVBM(SvANY(sv));
3728 del_XPVFM(SvANY(sv));
3731 del_XPVIO(SvANY(sv));
3734 SvFLAGS(sv) &= SVf_BREAK;
3735 SvFLAGS(sv) |= SVTYPEMASK;
3739 Perl_sv_newref(pTHX_ SV *sv)
3742 ATOMIC_INC(SvREFCNT(sv));
3747 Perl_sv_free(pTHX_ SV *sv)
3750 int refcount_is_zero;
3754 if (SvREFCNT(sv) == 0) {
3755 if (SvFLAGS(sv) & SVf_BREAK)
3757 if (PL_in_clean_all) /* All is fair */
3759 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3760 /* make sure SvREFCNT(sv)==0 happens very seldom */
3761 SvREFCNT(sv) = (~(U32)0)/2;
3764 if (ckWARN_d(WARN_INTERNAL))
3765 Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar");
3768 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
3769 if (!refcount_is_zero)
3773 if (ckWARN_d(WARN_DEBUGGING))
3774 Perl_warner(aTHX_ WARN_DEBUGGING,
3775 "Attempt to free temp prematurely: SV 0x%"UVxf,
3780 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3781 /* make sure SvREFCNT(sv)==0 happens very seldom */
3782 SvREFCNT(sv) = (~(U32)0)/2;
3793 Returns the length of the string in the SV. See also C<SvCUR>.
3799 Perl_sv_len(pTHX_ register SV *sv)
3808 len = mg_length(sv);
3810 junk = SvPV(sv, len);
3815 Perl_sv_len_utf8(pTHX_ register SV *sv)
3826 len = mg_length(sv);
3829 s = (U8*)SvPV(sv, len);
3840 Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp)
3845 I32 uoffset = *offsetp;
3851 start = s = (U8*)SvPV(sv, len);
3853 while (s < send && uoffset--)
3857 *offsetp = s - start;
3861 while (s < send && ulen--)
3871 Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp)
3880 s = (U8*)SvPV(sv, len);
3882 Perl_croak(aTHX_ "panic: bad byte offset");
3883 send = s + *offsetp;
3891 if (ckWARN_d(WARN_UTF8))
3892 Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
3902 Returns a boolean indicating whether the strings in the two SVs are
3909 Perl_sv_eq(pTHX_ register SV *str1, register SV *str2)
3921 pv1 = SvPV(str1, cur1);
3926 pv2 = SvPV(str2, cur2);
3931 return memEQ(pv1, pv2, cur1);
3937 Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the
3938 string in C<sv1> is less than, equal to, or greater than the string in
3945 Perl_sv_cmp(pTHX_ register SV *str1, register SV *str2)
3952 pv1 = SvPV(str1, cur1);
3960 if (SvPOK(str1) && SvUTF8(str1) != SvUTF8(str2) && !IN_BYTE) {
3961 /* must upgrade other to UTF8 first */
3963 sv_utf8_upgrade(str2);
3966 sv_utf8_upgrade(str1);
3967 /* refresh pointer and length */
3976 pv2 = sv_2pv(str2, &cur2);
3984 return cur2 ? -1 : 0;
3989 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3992 return retval < 0 ? -1 : 1;
3997 return cur1 < cur2 ? -1 : 1;
4001 Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2)
4003 #ifdef USE_LOCALE_COLLATE
4009 if (PL_collation_standard)
4013 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
4015 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
4017 if (!pv1 || !len1) {
4028 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
4031 return retval < 0 ? -1 : 1;
4034 * When the result of collation is equality, that doesn't mean
4035 * that there are no differences -- some locales exclude some
4036 * characters from consideration. So to avoid false equalities,
4037 * we use the raw string as a tiebreaker.
4043 #endif /* USE_LOCALE_COLLATE */
4045 return sv_cmp(sv1, sv2);
4048 #ifdef USE_LOCALE_COLLATE
4050 * Any scalar variable may carry an 'o' magic that contains the
4051 * scalar data of the variable transformed to such a format that
4052 * a normal memory comparison can be used to compare the data
4053 * according to the locale settings.
4056 Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp)
4060 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
4061 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) {
4066 Safefree(mg->mg_ptr);
4068 if ((xf = mem_collxfrm(s, len, &xlen))) {
4069 if (SvREADONLY(sv)) {
4072 return xf + sizeof(PL_collation_ix);
4075 sv_magic(sv, 0, 'o', 0, 0);
4076 mg = mg_find(sv, 'o');
4089 if (mg && mg->mg_ptr) {
4091 return mg->mg_ptr + sizeof(PL_collation_ix);
4099 #endif /* USE_LOCALE_COLLATE */
4102 Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append)
4107 register STDCHAR rslast;
4108 register STDCHAR *bp;
4112 SV_CHECK_THINKFIRST(sv);
4113 (void)SvUPGRADE(sv, SVt_PV);
4117 if (RsSNARF(PL_rs)) {
4121 else if (RsRECORD(PL_rs)) {
4122 I32 recsize, bytesread;
4125 /* Grab the size of the record we're getting */
4126 recsize = SvIV(SvRV(PL_rs));
4127 (void)SvPOK_only(sv); /* Validate pointer */
4128 buffer = SvGROW(sv, recsize + 1);
4131 /* VMS wants read instead of fread, because fread doesn't respect */
4132 /* RMS record boundaries. This is not necessarily a good thing to be */
4133 /* doing, but we've got no other real choice */
4134 bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize);
4136 bytesread = PerlIO_read(fp, buffer, recsize);
4138 SvCUR_set(sv, bytesread);
4139 buffer[bytesread] = '\0';
4140 return(SvCUR(sv) ? SvPVX(sv) : Nullch);
4142 else if (RsPARA(PL_rs)) {
4147 rsptr = SvPV(PL_rs, rslen);
4148 rslast = rslen ? rsptr[rslen - 1] : '\0';
4150 if (RsPARA(PL_rs)) { /* have to do this both before and after */
4151 do { /* to make sure file boundaries work right */
4154 i = PerlIO_getc(fp);
4158 PerlIO_ungetc(fp,i);
4164 /* See if we know enough about I/O mechanism to cheat it ! */
4166 /* This used to be #ifdef test - it is made run-time test for ease
4167 of abstracting out stdio interface. One call should be cheap
4168 enough here - and may even be a macro allowing compile
4172 if (PerlIO_fast_gets(fp)) {
4175 * We're going to steal some values from the stdio struct
4176 * and put EVERYTHING in the innermost loop into registers.
4178 register STDCHAR *ptr;
4182 #if defined(VMS) && defined(PERLIO_IS_STDIO)
4183 /* An ungetc()d char is handled separately from the regular
4184 * buffer, so we getc() it back out and stuff it in the buffer.
4186 i = PerlIO_getc(fp);
4187 if (i == EOF) return 0;
4188 *(--((*fp)->_ptr)) = (unsigned char) i;
4192 /* Here is some breathtakingly efficient cheating */
4194 cnt = PerlIO_get_cnt(fp); /* get count into register */
4195 (void)SvPOK_only(sv); /* validate pointer */
4196 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
4197 if (cnt > 80 && SvLEN(sv) > append) {
4198 shortbuffered = cnt - SvLEN(sv) + append + 1;
4199 cnt -= shortbuffered;
4203 /* remember that cnt can be negative */
4204 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
4209 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
4210 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
4211 DEBUG_P(PerlIO_printf(Perl_debug_log,
4212 "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt));
4213 DEBUG_P(PerlIO_printf(Perl_debug_log,
4214 "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n",
4215 PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp),
4216 PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
4221 while (cnt > 0) { /* this | eat */
4223 if ((*bp++ = *ptr++) == rslast) /* really | dust */
4224 goto thats_all_folks; /* screams | sed :-) */
4228 Copy(ptr, bp, cnt, char); /* this | eat */
4229 bp += cnt; /* screams | dust */
4230 ptr += cnt; /* louder | sed :-) */
4235 if (shortbuffered) { /* oh well, must extend */
4236 cnt = shortbuffered;
4238 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
4240 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
4241 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
4245 DEBUG_P(PerlIO_printf(Perl_debug_log,
4246 "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n",
4247 PTR2UV(ptr),(long)cnt));
4248 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
4249 DEBUG_P(PerlIO_printf(Perl_debug_log,
4250 "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n",
4251 PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp),
4252 PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
4253 /* This used to call 'filbuf' in stdio form, but as that behaves like
4254 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
4255 another abstraction. */
4256 i = PerlIO_getc(fp); /* get more characters */
4257 DEBUG_P(PerlIO_printf(Perl_debug_log,
4258 "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n",
4259 PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp),
4260 PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
4261 cnt = PerlIO_get_cnt(fp);
4262 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
4263 DEBUG_P(PerlIO_printf(Perl_debug_log,
4264 "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt));
4266 if (i == EOF) /* all done for ever? */
4267 goto thats_really_all_folks;
4269 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
4271 SvGROW(sv, bpx + cnt + 2);
4272 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
4274 *bp++ = i; /* store character from PerlIO_getc */
4276 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
4277 goto thats_all_folks;
4281 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
4282 memNE((char*)bp - rslen, rsptr, rslen))
4283 goto screamer; /* go back to the fray */
4284 thats_really_all_folks:
4286 cnt += shortbuffered;
4287 DEBUG_P(PerlIO_printf(Perl_debug_log,
4288 "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt));
4289 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
4290 DEBUG_P(PerlIO_printf(Perl_debug_log,
4291 "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n",
4292 PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp),
4293 PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
4295 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
4296 DEBUG_P(PerlIO_printf(Perl_debug_log,
4297 "Screamer: done, len=%ld, string=|%.*s|\n",
4298 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
4303 /*The big, slow, and stupid way */
4306 /* Need to work around EPOC SDK features */
4307 /* On WINS: MS VC5 generates calls to _chkstk, */
4308 /* if a `large' stack frame is allocated */
4309 /* gcc on MARM does not generate calls like these */
4315 register STDCHAR *bpe = buf + sizeof(buf);
4317 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
4318 ; /* keep reading */
4322 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
4323 /* Accomodate broken VAXC compiler, which applies U8 cast to
4324 * both args of ?: operator, causing EOF to change into 255
4326 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
4330 sv_catpvn(sv, (char *) buf, cnt);
4332 sv_setpvn(sv, (char *) buf, cnt);
4334 if (i != EOF && /* joy */
4336 SvCUR(sv) < rslen ||
4337 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
4341 * If we're reading from a TTY and we get a short read,
4342 * indicating that the user hit his EOF character, we need
4343 * to notice it now, because if we try to read from the TTY
4344 * again, the EOF condition will disappear.
4346 * The comparison of cnt to sizeof(buf) is an optimization
4347 * that prevents unnecessary calls to feof().
4351 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
4356 if (RsPARA(PL_rs)) { /* have to do this both before and after */
4357 while (i != EOF) { /* to make sure file boundaries work right */
4358 i = PerlIO_getc(fp);
4360 PerlIO_ungetc(fp,i);
4366 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
4373 Auto-increment of the value in the SV.
4379 Perl_sv_inc(pTHX_ register SV *sv)
4388 if (SvTHINKFIRST(sv)) {
4389 if (SvREADONLY(sv)) {
4391 if (PL_curcop != &PL_compiling)
4392 Perl_croak(aTHX_ PL_no_modify);
4396 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc))
4398 i = PTR2IV(SvRV(sv));
4403 flags = SvFLAGS(sv);
4404 if (flags & SVp_NOK) {
4405 (void)SvNOK_only(sv);
4409 if (flags & SVp_IOK) {
4411 if (SvUVX(sv) == UV_MAX)
4412 sv_setnv(sv, (NV)UV_MAX + 1.0);
4414 (void)SvIOK_only_UV(sv);
4417 if (SvIVX(sv) == IV_MAX)
4418 sv_setnv(sv, (NV)IV_MAX + 1.0);
4420 (void)SvIOK_only(sv);
4426 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
4427 if ((flags & SVTYPEMASK) < SVt_PVNV)
4428 sv_upgrade(sv, SVt_NV);
4430 (void)SvNOK_only(sv);
4434 while (isALPHA(*d)) d++;
4435 while (isDIGIT(*d)) d++;
4437 sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); /* punt */
4441 while (d >= SvPVX(sv)) {
4449 /* MKS: The original code here died if letters weren't consecutive.
4450 * at least it didn't have to worry about non-C locales. The
4451 * new code assumes that ('z'-'a')==('Z'-'A'), letters are
4452 * arranged in order (although not consecutively) and that only
4453 * [A-Za-z] are accepted by isALPHA in the C locale.
4455 if (*d != 'z' && *d != 'Z') {
4456 do { ++*d; } while (!isALPHA(*d));
4459 *(d--) -= 'z' - 'a';
4464 *(d--) -= 'z' - 'a' + 1;
4468 /* oh,oh, the number grew */
4469 SvGROW(sv, SvCUR(sv) + 2);
4471 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
4482 Auto-decrement of the value in the SV.
4488 Perl_sv_dec(pTHX_ register SV *sv)
4496 if (SvTHINKFIRST(sv)) {
4497 if (SvREADONLY(sv)) {
4499 if (PL_curcop != &PL_compiling)
4500 Perl_croak(aTHX_ PL_no_modify);
4504 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec))
4506 i = PTR2IV(SvRV(sv));
4511 flags = SvFLAGS(sv);
4512 if (flags & SVp_NOK) {
4514 (void)SvNOK_only(sv);
4517 if (flags & SVp_IOK) {
4519 if (SvUVX(sv) == 0) {
4520 (void)SvIOK_only(sv);
4524 (void)SvIOK_only_UV(sv);
4528 if (SvIVX(sv) == IV_MIN)
4529 sv_setnv(sv, (NV)IV_MIN - 1.0);
4531 (void)SvIOK_only(sv);
4537 if (!(flags & SVp_POK)) {
4538 if ((flags & SVTYPEMASK) < SVt_PVNV)
4539 sv_upgrade(sv, SVt_NV);
4541 (void)SvNOK_only(sv);
4544 sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */
4548 =for apidoc sv_mortalcopy
4550 Creates a new SV which is a copy of the original SV. The new SV is marked
4556 /* Make a string that will exist for the duration of the expression
4557 * evaluation. Actually, it may have to last longer than that, but
4558 * hopefully we won't free it until it has been assigned to a
4559 * permanent location. */
4562 Perl_sv_mortalcopy(pTHX_ SV *oldstr)
4568 sv_setsv(sv,oldstr);
4570 PL_tmps_stack[++PL_tmps_ix] = sv;
4576 =for apidoc sv_newmortal
4578 Creates a new SV which is mortal. The reference count of the SV is set to 1.
4584 Perl_sv_newmortal(pTHX)
4590 SvFLAGS(sv) = SVs_TEMP;
4592 PL_tmps_stack[++PL_tmps_ix] = sv;
4597 =for apidoc sv_2mortal
4599 Marks an SV as mortal. The SV will be destroyed when the current context
4605 /* same thing without the copying */
4608 Perl_sv_2mortal(pTHX_ register SV *sv)
4613 if (SvREADONLY(sv) && SvIMMORTAL(sv))
4616 PL_tmps_stack[++PL_tmps_ix] = sv;
4624 Creates a new SV and copies a string into it. The reference count for the
4625 SV is set to 1. If C<len> is zero, Perl will compute the length using
4626 strlen(). For efficiency, consider using C<newSVpvn> instead.
4632 Perl_newSVpv(pTHX_ const char *s, STRLEN len)
4639 sv_setpvn(sv,s,len);
4644 =for apidoc newSVpvn
4646 Creates a new SV and copies a string into it. The reference count for the
4647 SV is set to 1. Note that if C<len> is zero, Perl will create a zero length
4648 string. You are responsible for ensuring that the source string is at least
4655 Perl_newSVpvn(pTHX_ const char *s, STRLEN len)
4660 sv_setpvn(sv,s,len);
4664 #if defined(PERL_IMPLICIT_CONTEXT)
4666 Perl_newSVpvf_nocontext(const char* pat, ...)
4671 va_start(args, pat);
4672 sv = vnewSVpvf(pat, &args);
4679 =for apidoc newSVpvf
4681 Creates a new SV an initialize it with the string formatted like
4688 Perl_newSVpvf(pTHX_ const char* pat, ...)
4692 va_start(args, pat);
4693 sv = vnewSVpvf(pat, &args);
4699 Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args)
4703 sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
4710 Creates a new SV and copies a floating point value into it.
4711 The reference count for the SV is set to 1.
4717 Perl_newSVnv(pTHX_ NV n)
4729 Creates a new SV and copies an integer into it. The reference count for the
4736 Perl_newSViv(pTHX_ IV i)
4746 =for apidoc newRV_noinc
4748 Creates an RV wrapper for an SV. The reference count for the original
4749 SV is B<not> incremented.
4755 Perl_newRV_noinc(pTHX_ SV *tmpRef)
4761 sv_upgrade(sv, SVt_RV);
4768 /* newRV_inc is #defined to newRV in sv.h */
4770 Perl_newRV(pTHX_ SV *tmpRef)
4772 return newRV_noinc(SvREFCNT_inc(tmpRef));
4778 Creates a new SV which is an exact duplicate of the original SV.
4783 /* make an exact duplicate of old */
4786 Perl_newSVsv(pTHX_ register SV *old)
4793 if (SvTYPE(old) == SVTYPEMASK) {
4794 if (ckWARN_d(WARN_INTERNAL))
4795 Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string");
4810 Perl_sv_reset(pTHX_ register char *s, HV *stash)
4818 char todo[PERL_UCHAR_MAX+1];
4823 if (!*s) { /* reset ?? searches */
4824 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
4825 pm->op_pmdynflags &= ~PMdf_USED;
4830 /* reset variables */
4832 if (!HvARRAY(stash))
4835 Zero(todo, 256, char);
4837 i = (unsigned char)*s;
4841 max = (unsigned char)*s++;
4842 for ( ; i <= max; i++) {
4845 for (i = 0; i <= (I32) HvMAX(stash); i++) {
4846 for (entry = HvARRAY(stash)[i];
4848 entry = HeNEXT(entry))
4850 if (!todo[(U8)*HeKEY(entry)])
4852 gv = (GV*)HeVAL(entry);
4854 if (SvTHINKFIRST(sv)) {
4855 if (!SvREADONLY(sv) && SvROK(sv))
4860 if (SvTYPE(sv) >= SVt_PV) {
4862 if (SvPVX(sv) != Nullch)
4869 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
4871 #ifndef VMS /* VMS has no environ array */
4873 environ[0] = Nullch;
4882 Perl_sv_2io(pTHX_ SV *sv)
4888 switch (SvTYPE(sv)) {
4896 Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv));
4900 Perl_croak(aTHX_ PL_no_usym, "filehandle");
4902 return sv_2io(SvRV(sv));
4903 gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO);
4909 Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a));
4916 Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref)
4923 return *gvp = Nullgv, Nullcv;
4924 switch (SvTYPE(sv)) {
4944 SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */
4945 tryAMAGICunDEREF(to_cv);
4948 if (SvTYPE(sv) == SVt_PVCV) {
4957 Perl_croak(aTHX_ "Not a subroutine reference");
4962 gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV);
4968 if (lref && !GvCVu(gv)) {
4971 tmpsv = NEWSV(704,0);
4972 gv_efullname3(tmpsv, gv, Nullch);
4973 /* XXX this is probably not what they think they're getting.
4974 * It has the same effect as "sub name;", i.e. just a forward
4976 newSUB(start_subparse(FALSE, 0),
4977 newSVOP(OP_CONST, 0, tmpsv),
4982 Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a));
4989 Perl_sv_true(pTHX_ register SV *sv)
4996 if ((tXpv = (XPV*)SvANY(sv)) &&
4997 (tXpv->xpv_cur > 1 ||
4998 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
5005 return SvIVX(sv) != 0;
5008 return SvNVX(sv) != 0.0;
5010 return sv_2bool(sv);
5016 Perl_sv_iv(pTHX_ register SV *sv)
5020 return (IV)SvUVX(sv);
5027 Perl_sv_uv(pTHX_ register SV *sv)
5032 return (UV)SvIVX(sv);
5038 Perl_sv_nv(pTHX_ register SV *sv)
5046 Perl_sv_pv(pTHX_ SV *sv)
5053 return sv_2pv(sv, &n_a);
5057 Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp)
5063 return sv_2pv(sv, lp);
5067 Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
5071 if (SvTHINKFIRST(sv) && !SvROK(sv))
5072 sv_force_normal(sv);
5078 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
5080 Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0),
5081 PL_op_name[PL_op->op_type]);
5085 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
5090 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
5091 SvGROW(sv, len + 1);
5092 Move(s,SvPVX(sv),len,char);
5097 SvPOK_on(sv); /* validate pointer */
5099 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n",
5100 PTR2UV(sv),SvPVX(sv)));
5107 Perl_sv_pvbyte(pTHX_ SV *sv)
5113 Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp)
5115 return sv_pvn(sv,lp);
5119 Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp)
5121 return sv_pvn_force(sv,lp);
5125 Perl_sv_pvutf8(pTHX_ SV *sv)
5127 sv_utf8_upgrade(sv);
5132 Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp)
5134 sv_utf8_upgrade(sv);
5135 return sv_pvn(sv,lp);
5139 Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp)
5141 sv_utf8_upgrade(sv);
5142 return sv_pvn_force(sv,lp);
5146 Perl_sv_reftype(pTHX_ SV *sv, int ob)
5148 if (ob && SvOBJECT(sv))
5149 return HvNAME(SvSTASH(sv));
5151 switch (SvTYPE(sv)) {
5165 case SVt_PVLV: return "LVALUE";
5166 case SVt_PVAV: return "ARRAY";
5167 case SVt_PVHV: return "HASH";
5168 case SVt_PVCV: return "CODE";
5169 case SVt_PVGV: return "GLOB";
5170 case SVt_PVFM: return "FORMAT";
5171 case SVt_PVIO: return "IO";
5172 default: return "UNKNOWN";
5178 =for apidoc sv_isobject
5180 Returns a boolean indicating whether the SV is an RV pointing to a blessed
5181 object. If the SV is not an RV, or if the object is not blessed, then this
5188 Perl_sv_isobject(pTHX_ SV *sv)
5205 Returns a boolean indicating whether the SV is blessed into the specified
5206 class. This does not check for subtypes; use C<sv_derived_from> to verify
5207 an inheritance relationship.
5213 Perl_sv_isa(pTHX_ SV *sv, const char *name)
5225 return strEQ(HvNAME(SvSTASH(sv)), name);
5231 Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then
5232 it will be upgraded to one. If C<classname> is non-null then the new SV will
5233 be blessed in the specified package. The new SV is returned and its
5234 reference count is 1.
5240 Perl_newSVrv(pTHX_ SV *rv, const char *classname)
5247 SV_CHECK_THINKFIRST(rv);
5250 if (SvTYPE(rv) < SVt_RV)
5251 sv_upgrade(rv, SVt_RV);
5258 HV* stash = gv_stashpv(classname, TRUE);
5259 (void)sv_bless(rv, stash);
5265 =for apidoc sv_setref_pv
5267 Copies a pointer into a new SV, optionally blessing the SV. The C<rv>
5268 argument will be upgraded to an RV. That RV will be modified to point to
5269 the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed
5270 into the SV. The C<classname> argument indicates the package for the
5271 blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV
5272 will be returned and will have a reference count of 1.
5274 Do not use with other Perl types such as HV, AV, SV, CV, because those
5275 objects will become corrupted by the pointer copy process.
5277 Note that C<sv_setref_pvn> copies the string while this copies the pointer.
5283 Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv)
5286 sv_setsv(rv, &PL_sv_undef);
5290 sv_setiv(newSVrv(rv,classname), PTR2IV(pv));
5295 =for apidoc sv_setref_iv
5297 Copies an integer into a new SV, optionally blessing the SV. The C<rv>
5298 argument will be upgraded to an RV. That RV will be modified to point to
5299 the new SV. The C<classname> argument indicates the package for the
5300 blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV
5301 will be returned and will have a reference count of 1.
5307 Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv)
5309 sv_setiv(newSVrv(rv,classname), iv);
5314 =for apidoc sv_setref_nv
5316 Copies a double into a new SV, optionally blessing the SV. The C<rv>
5317 argument will be upgraded to an RV. That RV will be modified to point to
5318 the new SV. The C<classname> argument indicates the package for the
5319 blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV
5320 will be returned and will have a reference count of 1.
5326 Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv)
5328 sv_setnv(newSVrv(rv,classname), nv);
5333 =for apidoc sv_setref_pvn
5335 Copies a string into a new SV, optionally blessing the SV. The length of the
5336 string must be specified with C<n>. The C<rv> argument will be upgraded to
5337 an RV. That RV will be modified to point to the new SV. The C<classname>
5338 argument indicates the package for the blessing. Set C<classname> to
5339 C<Nullch> to avoid the blessing. The new SV will be returned and will have
5340 a reference count of 1.
5342 Note that C<sv_setref_pv> copies the pointer while this copies the string.
5348 Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n)
5350 sv_setpvn(newSVrv(rv,classname), pv, n);
5355 =for apidoc sv_bless
5357 Blesses an SV into a specified package. The SV must be an RV. The package
5358 must be designated by its stash (see C<gv_stashpv()>). The reference count
5359 of the SV is unaffected.
5365 Perl_sv_bless(pTHX_ SV *sv, HV *stash)
5370 Perl_croak(aTHX_ "Can't bless non-reference value");
5372 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
5373 if (SvREADONLY(tmpRef))
5374 Perl_croak(aTHX_ PL_no_modify);
5375 if (SvOBJECT(tmpRef)) {
5376 if (SvTYPE(tmpRef) != SVt_PVIO)
5378 SvREFCNT_dec(SvSTASH(tmpRef));
5381 SvOBJECT_on(tmpRef);
5382 if (SvTYPE(tmpRef) != SVt_PVIO)
5384 (void)SvUPGRADE(tmpRef, SVt_PVMG);
5385 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
5396 S_sv_unglob(pTHX_ SV *sv)
5400 assert(SvTYPE(sv) == SVt_PVGV);
5405 SvREFCNT_dec(GvSTASH(sv));
5406 GvSTASH(sv) = Nullhv;
5408 sv_unmagic(sv, '*');
5409 Safefree(GvNAME(sv));
5412 /* need to keep SvANY(sv) in the right arena */
5413 xpvmg = new_XPVMG();
5414 StructCopy(SvANY(sv), xpvmg, XPVMG);
5415 del_XPVGV(SvANY(sv));
5418 SvFLAGS(sv) &= ~SVTYPEMASK;
5419 SvFLAGS(sv) |= SVt_PVMG;
5423 =for apidoc sv_unref
5425 Unsets the RV status of the SV, and decrements the reference count of
5426 whatever was being referenced by the RV. This can almost be thought of
5427 as a reversal of C<newSVrv>. See C<SvROK_off>.
5433 Perl_sv_unref(pTHX_ SV *sv)
5437 if (SvWEAKREF(sv)) {
5445 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
5448 sv_2mortal(rv); /* Schedule for freeing later */
5452 Perl_sv_taint(pTHX_ SV *sv)
5454 sv_magic((sv), Nullsv, 't', Nullch, 0);
5458 Perl_sv_untaint(pTHX_ SV *sv)
5460 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
5461 MAGIC *mg = mg_find(sv, 't');
5468 Perl_sv_tainted(pTHX_ SV *sv)
5470 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
5471 MAGIC *mg = mg_find(sv, 't');
5472 if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv)))
5479 =for apidoc sv_setpviv
5481 Copies an integer into the given SV, also updating its string value.
5482 Does not handle 'set' magic. See C<sv_setpviv_mg>.
5488 Perl_sv_setpviv(pTHX_ SV *sv, IV iv)
5490 char buf[TYPE_CHARS(UV)];
5492 char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf);
5494 sv_setpvn(sv, ptr, ebuf - ptr);
5499 =for apidoc sv_setpviv_mg
5501 Like C<sv_setpviv>, but also handles 'set' magic.
5507 Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv)
5509 char buf[TYPE_CHARS(UV)];
5511 char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf);
5513 sv_setpvn(sv, ptr, ebuf - ptr);
5517 #if defined(PERL_IMPLICIT_CONTEXT)
5519 Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...)
5523 va_start(args, pat);
5524 sv_vsetpvf(sv, pat, &args);
5530 Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...)
5534 va_start(args, pat);
5535 sv_vsetpvf_mg(sv, pat, &args);
5541 =for apidoc sv_setpvf
5543 Processes its arguments like C<sprintf> and sets an SV to the formatted
5544 output. Does not handle 'set' magic. See C<sv_setpvf_mg>.
5550 Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...)
5553 va_start(args, pat);
5554 sv_vsetpvf(sv, pat, &args);
5559 Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args)
5561 sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
5565 =for apidoc sv_setpvf_mg
5567 Like C<sv_setpvf>, but also handles 'set' magic.
5573 Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...)
5576 va_start(args, pat);
5577 sv_vsetpvf_mg(sv, pat, &args);
5582 Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args)
5584 sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
5588 #if defined(PERL_IMPLICIT_CONTEXT)
5590 Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...)
5594 va_start(args, pat);
5595 sv_vcatpvf(sv, pat, &args);
5600 Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...)
5604 va_start(args, pat);
5605 sv_vcatpvf_mg(sv, pat, &args);
5611 =for apidoc sv_catpvf
5613 Processes its arguments like C<sprintf> and appends the formatted output
5614 to an SV. Handles 'get' magic, but not 'set' magic. C<SvSETMAGIC()> must
5615 typically be called after calling this function to handle 'set' magic.
5621 Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...)
5624 va_start(args, pat);
5625 sv_vcatpvf(sv, pat, &args);
5630 Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args)
5632 sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
5636 =for apidoc sv_catpvf_mg
5638 Like C<sv_catpvf>, but also handles 'set' magic.
5644 Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...)
5647 va_start(args, pat);
5648 sv_vcatpvf_mg(sv, pat, &args);
5653 Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args)
5655 sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
5660 =for apidoc sv_vsetpvfn
5662 Works like C<vcatpvfn> but copies the text into the SV instead of
5669 Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted)
5671 sv_setpvn(sv, "", 0);
5672 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted);
5676 =for apidoc sv_vcatpvfn
5678 Processes its arguments like C<vsprintf> and appends the formatted output
5679 to an SV. Uses an array of SVs if the C style variable argument list is
5680 missing (NULL). When running with taint checks enabled, indicates via
5681 C<maybe_tainted> if results are untrustworthy (often due to the use of
5688 Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted)
5696 static char nullstr[] = "(null)";
5699 /* no matter what, this is a string now */
5700 (void)SvPV_force(sv, origlen);
5702 /* special-case "", "%s", and "%_" */
5705 if (patlen == 2 && pat[0] == '%') {
5709 char *s = va_arg(*args, char*);
5710 sv_catpv(sv, s ? s : nullstr);
5712 else if (svix < svmax) {
5713 sv_catsv(sv, *svargs);
5714 if (DO_UTF8(*svargs))
5720 argsv = va_arg(*args, SV*);
5721 sv_catsv(sv, argsv);
5726 /* See comment on '_' below */
5731 patend = (char*)pat + patlen;
5732 for (p = (char*)pat; p < patend; p = q) {
5735 bool vectorize = FALSE;
5742 bool has_precis = FALSE;
5744 bool is_utf = FALSE;
5747 U8 utf8buf[UTF8_MAXLEN];
5748 STRLEN esignlen = 0;
5750 char *eptr = Nullch;
5752 /* Times 4: a decimal digit takes more than 3 binary digits.
5753 * NV_DIG: mantissa takes than many decimal digits.
5754 * Plus 32: Playing safe. */
5755 char ebuf[IV_DIG * 4 + NV_DIG + 32];
5756 /* large enough for "%#.#f" --chip */
5757 /* what about long double NVs? --jhi */
5760 U8 *vecstr = Null(U8*);
5772 STRLEN dotstrlen = 1;
5774 for (q = p; q < patend && *q != '%'; ++q) ;
5776 sv_catpvn(sv, p, q - p);
5805 case '*': /* printf("%*vX",":",$ipv6addr) */
5810 vecsv = va_arg(*args, SV*);
5811 else if (svix < svmax)
5812 vecsv = svargs[svix++];
5815 dotstr = SvPVx(vecsv,dotstrlen);
5824 vecsv = va_arg(*args, SV*);
5825 else if (svix < svmax)
5826 vecsv = svargs[svix++];
5832 vecstr = (U8*)SvPVx(vecsv,veclen);
5833 utf = DO_UTF8(vecsv);
5845 case '1': case '2': case '3':
5846 case '4': case '5': case '6':
5847 case '7': case '8': case '9':
5850 width = width * 10 + (*q++ - '0');
5855 i = va_arg(*args, int);
5857 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
5859 width = (i < 0) ? -i : i;
5870 i = va_arg(*args, int);
5872 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
5873 precis = (i < 0) ? 0 : i;
5879 precis = precis * 10 + (*q++ - '0');
5896 if (*(q + 1) == 'l') { /* lld */
5923 uv = va_arg(*args, int);
5925 uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
5926 if ((uv > 255 || (uv > 127 && SvUTF8(sv))) && !IN_BYTE) {
5927 eptr = (char*)utf8buf;
5928 elen = uv_to_utf8((U8*)eptr, uv) - utf8buf;
5940 eptr = va_arg(*args, char*);
5942 #ifdef MACOS_TRADITIONAL
5943 /* On MacOS, %#s format is used for Pascal strings */
5948 elen = strlen(eptr);
5951 elen = sizeof nullstr - 1;
5954 else if (svix < svmax) {
5955 argsv = svargs[svix++];
5956 eptr = SvPVx(argsv, elen);
5957 if (DO_UTF8(argsv)) {
5958 if (has_precis && precis < elen) {
5960 sv_pos_u2b(argsv, &p, 0); /* sticks at end */
5963 if (width) { /* fudge width (can't fudge elen) */
5964 width += elen - sv_len_utf8(argsv);
5973 * The "%_" hack might have to be changed someday,
5974 * if ISO or ANSI decide to use '_' for something.
5975 * So we keep it hidden from users' code.
5979 argsv = va_arg(*args,SV*);
5980 eptr = SvPVx(argsv, elen);
5986 if (has_precis && elen > precis)
5994 uv = PTR2UV(va_arg(*args, void*));
5996 uv = (svix < svmax) ? PTR2UV(svargs[svix++]) : 0;
6016 iv = (IV)utf8_to_uv(vecstr, &ulen);
6026 case 'h': iv = (short)va_arg(*args, int); break;
6027 default: iv = va_arg(*args, int); break;
6028 case 'l': iv = va_arg(*args, long); break;
6029 case 'V': iv = va_arg(*args, IV); break;
6031 case 'q': iv = va_arg(*args, Quad_t); break;
6036 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
6038 case 'h': iv = (short)iv; break;
6039 default: iv = (int)iv; break;
6040 case 'l': iv = (long)iv; break;
6043 case 'q': iv = (Quad_t)iv; break;
6050 esignbuf[esignlen++] = plus;
6054 esignbuf[esignlen++] = '-';
6098 uv = utf8_to_uv(vecstr, &ulen);
6108 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
6109 default: uv = va_arg(*args, unsigned); break;
6110 case 'l': uv = va_arg(*args, unsigned long); break;
6111 case 'V': uv = va_arg(*args, UV); break;
6113 case 'q': uv = va_arg(*args, Quad_t); break;
6118 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
6120 case 'h': uv = (unsigned short)uv; break;
6121 default: uv = (unsigned)uv; break;
6122 case 'l': uv = (unsigned long)uv; break;
6125 case 'q': uv = (Quad_t)uv; break;
6131 eptr = ebuf + sizeof ebuf;
6137 p = (char*)((c == 'X')
6138 ? "0123456789ABCDEF" : "0123456789abcdef");
6144 esignbuf[esignlen++] = '0';
6145 esignbuf[esignlen++] = c; /* 'x' or 'X' */
6151 *--eptr = '0' + dig;
6153 if (alt && *eptr != '0')
6159 *--eptr = '0' + dig;
6162 esignbuf[esignlen++] = '0';
6163 esignbuf[esignlen++] = 'b';
6166 default: /* it had better be ten or less */
6167 #if defined(PERL_Y2KWARN)
6168 if (ckWARN(WARN_Y2K)) {
6170 char *s = SvPV(sv,n);
6171 if (n >= 2 && s[n-2] == '1' && s[n-1] == '9'
6172 && (n == 2 || !isDIGIT(s[n-3])))
6174 Perl_warner(aTHX_ WARN_Y2K,
6175 "Possible Y2K bug: %%%c %s",
6176 c, "format string following '19'");
6182 *--eptr = '0' + dig;
6183 } while (uv /= base);
6186 elen = (ebuf + sizeof ebuf) - eptr;
6189 zeros = precis - elen;
6190 else if (precis == 0 && elen == 1 && *eptr == '0')
6195 /* FLOATING POINT */
6198 c = 'f'; /* maybe %F isn't supported here */
6204 /* This is evil, but floating point is even more evil */
6208 nv = va_arg(*args, NV);
6210 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
6213 if (c != 'e' && c != 'E') {
6215 (void)Perl_frexp(nv, &i);
6216 if (i == PERL_INT_MIN)
6217 Perl_die(aTHX_ "panic: frexp");
6219 need = BIT_DIGITS(i);
6221 need += has_precis ? precis : 6; /* known default */
6225 need += 20; /* fudge factor */
6226 if (PL_efloatsize < need) {
6227 Safefree(PL_efloatbuf);
6228 PL_efloatsize = need + 20; /* more fudge */
6229 New(906, PL_efloatbuf, PL_efloatsize, char);
6230 PL_efloatbuf[0] = '\0';
6233 eptr = ebuf + sizeof ebuf;
6236 #ifdef USE_LONG_DOUBLE
6238 static char const my_prifldbl[] = PERL_PRIfldbl;
6239 char const *p = my_prifldbl + sizeof my_prifldbl - 3;
6240 while (p >= my_prifldbl) { *--eptr = *p--; }
6245 do { *--eptr = '0' + (base % 10); } while (base /= 10);
6250 do { *--eptr = '0' + (base % 10); } while (base /= 10);
6263 RESTORE_NUMERIC_STANDARD();
6264 (void)sprintf(PL_efloatbuf, eptr, nv);
6265 RESTORE_NUMERIC_LOCAL();
6268 eptr = PL_efloatbuf;
6269 elen = strlen(PL_efloatbuf);
6276 i = SvCUR(sv) - origlen;
6279 case 'h': *(va_arg(*args, short*)) = i; break;
6280 default: *(va_arg(*args, int*)) = i; break;
6281 case 'l': *(va_arg(*args, long*)) = i; break;
6282 case 'V': *(va_arg(*args, IV*)) = i; break;
6284 case 'q': *(va_arg(*args, Quad_t*)) = i; break;
6288 else if (svix < svmax)
6289 sv_setuv(svargs[svix++], (UV)i);
6290 continue; /* not "break" */
6297 if (!args && ckWARN(WARN_PRINTF) &&
6298 (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) {
6299 SV *msg = sv_newmortal();
6300 Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ",
6301 (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf");
6304 Perl_sv_catpvf(aTHX_ msg,
6305 "\"%%%c\"", c & 0xFF);
6307 Perl_sv_catpvf(aTHX_ msg,
6308 "\"%%\\%03"UVof"\"",
6311 sv_catpv(msg, "end of string");
6312 Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */
6315 /* output mangled stuff ... */
6321 /* ... right here, because formatting flags should not apply */
6322 SvGROW(sv, SvCUR(sv) + elen + 1);
6324 memcpy(p, eptr, elen);
6327 SvCUR(sv) = p - SvPVX(sv);
6328 continue; /* not "break" */
6331 have = esignlen + zeros + elen;
6332 need = (have > width ? have : width);
6335 SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1);
6337 if (esignlen && fill == '0') {
6338 for (i = 0; i < esignlen; i++)
6342 memset(p, fill, gap);
6345 if (esignlen && fill != '0') {
6346 for (i = 0; i < esignlen; i++)
6350 for (i = zeros; i; i--)
6354 memcpy(p, eptr, elen);
6358 memset(p, ' ', gap);
6363 memcpy(p, dotstr, dotstrlen);
6367 vectorize = FALSE; /* done iterating over vecstr */
6372 SvCUR(sv) = p - SvPVX(sv);
6380 #if defined(USE_ITHREADS)
6382 #if defined(USE_THREADS)
6383 # include "error: USE_THREADS and USE_ITHREADS are incompatible"
6386 #ifndef GpREFCNT_inc
6387 # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL)
6391 #define sv_dup_inc(s) SvREFCNT_inc(sv_dup(s))
6392 #define av_dup(s) (AV*)sv_dup((SV*)s)
6393 #define av_dup_inc(s) (AV*)SvREFCNT_inc(sv_dup((SV*)s))
6394 #define hv_dup(s) (HV*)sv_dup((SV*)s)
6395 #define hv_dup_inc(s) (HV*)SvREFCNT_inc(sv_dup((SV*)s))
6396 #define cv_dup(s) (CV*)sv_dup((SV*)s)
6397 #define cv_dup_inc(s) (CV*)SvREFCNT_inc(sv_dup((SV*)s))
6398 #define io_dup(s) (IO*)sv_dup((SV*)s)
6399 #define io_dup_inc(s) (IO*)SvREFCNT_inc(sv_dup((SV*)s))
6400 #define gv_dup(s) (GV*)sv_dup((SV*)s)
6401 #define gv_dup_inc(s) (GV*)SvREFCNT_inc(sv_dup((SV*)s))
6402 #define SAVEPV(p) (p ? savepv(p) : Nullch)
6403 #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch)
6406 Perl_re_dup(pTHX_ REGEXP *r)
6408 /* XXX fix when pmop->op_pmregexp becomes shared */
6409 return ReREFCNT_inc(r);
6413 Perl_fp_dup(pTHX_ PerlIO *fp, char type)
6417 return (PerlIO*)NULL;
6419 /* look for it in the table first */
6420 ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp);
6424 /* create anew and remember what it is */
6425 ret = PerlIO_fdupopen(fp);
6426 ptr_table_store(PL_ptr_table, fp, ret);
6431 Perl_dirp_dup(pTHX_ DIR *dp)
6440 Perl_gp_dup(pTHX_ GP *gp)
6445 /* look for it in the table first */
6446 ret = (GP*)ptr_table_fetch(PL_ptr_table, gp);
6450 /* create anew and remember what it is */
6451 Newz(0, ret, 1, GP);
6452 ptr_table_store(PL_ptr_table, gp, ret);
6455 ret->gp_refcnt = 0; /* must be before any other dups! */
6456 ret->gp_sv = sv_dup_inc(gp->gp_sv);
6457 ret->gp_io = io_dup_inc(gp->gp_io);
6458 ret->gp_form = cv_dup_inc(gp->gp_form);
6459 ret->gp_av = av_dup_inc(gp->gp_av);
6460 ret->gp_hv = hv_dup_inc(gp->gp_hv);
6461 ret->gp_egv = gv_dup(gp->gp_egv); /* GvEGV is not refcounted */
6462 ret->gp_cv = cv_dup_inc(gp->gp_cv);
6463 ret->gp_cvgen = gp->gp_cvgen;
6464 ret->gp_flags = gp->gp_flags;
6465 ret->gp_line = gp->gp_line;
6466 ret->gp_file = gp->gp_file; /* points to COP.cop_file */
6471 Perl_mg_dup(pTHX_ MAGIC *mg)
6473 MAGIC *mgret = (MAGIC*)NULL;
6476 return (MAGIC*)NULL;
6477 /* look for it in the table first */
6478 mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg);
6482 for (; mg; mg = mg->mg_moremagic) {
6484 Newz(0, nmg, 1, MAGIC);
6488 mgprev->mg_moremagic = nmg;
6489 nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */
6490 nmg->mg_private = mg->mg_private;
6491 nmg->mg_type = mg->mg_type;
6492 nmg->mg_flags = mg->mg_flags;
6493 if (mg->mg_type == 'r') {
6494 nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj);
6497 nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED)
6498 ? sv_dup_inc(mg->mg_obj)
6499 : sv_dup(mg->mg_obj);
6501 nmg->mg_len = mg->mg_len;
6502 nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */
6503 if (mg->mg_ptr && mg->mg_type != 'g') {
6504 if (mg->mg_len >= 0) {
6505 nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len);
6506 if (mg->mg_type == 'c' && AMT_AMAGIC((AMT*)mg->mg_ptr)) {
6507 AMT *amtp = (AMT*)mg->mg_ptr;
6508 AMT *namtp = (AMT*)nmg->mg_ptr;
6510 for (i = 1; i < NofAMmeth; i++) {
6511 namtp->table[i] = cv_dup_inc(amtp->table[i]);
6515 else if (mg->mg_len == HEf_SVKEY)
6516 nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr);
6524 Perl_ptr_table_new(pTHX)
6527 Newz(0, tbl, 1, PTR_TBL_t);
6530 Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*);
6535 Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv)
6537 PTR_TBL_ENT_t *tblent;
6538 UV hash = PTR2UV(sv);
6540 tblent = tbl->tbl_ary[hash & tbl->tbl_max];
6541 for (; tblent; tblent = tblent->next) {
6542 if (tblent->oldval == sv)
6543 return tblent->newval;
6549 Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv)
6551 PTR_TBL_ENT_t *tblent, **otblent;
6552 /* XXX this may be pessimal on platforms where pointers aren't good
6553 * hash values e.g. if they grow faster in the most significant
6555 UV hash = PTR2UV(oldv);
6559 otblent = &tbl->tbl_ary[hash & tbl->tbl_max];
6560 for (tblent = *otblent; tblent; i=0, tblent = tblent->next) {
6561 if (tblent->oldval == oldv) {
6562 tblent->newval = newv;
6567 Newz(0, tblent, 1, PTR_TBL_ENT_t);
6568 tblent->oldval = oldv;
6569 tblent->newval = newv;
6570 tblent->next = *otblent;
6573 if (i && tbl->tbl_items > tbl->tbl_max)
6574 ptr_table_split(tbl);
6578 Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl)
6580 PTR_TBL_ENT_t **ary = tbl->tbl_ary;
6581 UV oldsize = tbl->tbl_max + 1;
6582 UV newsize = oldsize * 2;
6585 Renew(ary, newsize, PTR_TBL_ENT_t*);
6586 Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*);
6587 tbl->tbl_max = --newsize;
6589 for (i=0; i < oldsize; i++, ary++) {
6590 PTR_TBL_ENT_t **curentp, **entp, *ent;
6593 curentp = ary + oldsize;
6594 for (entp = ary, ent = *ary; ent; ent = *entp) {
6595 if ((newsize & PTR2UV(ent->oldval)) != i) {
6597 ent->next = *curentp;
6612 Perl_sv_dup(pTHX_ SV *sstr)
6616 if (!sstr || SvTYPE(sstr) == SVTYPEMASK)
6618 /* look for it in the table first */
6619 dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr);
6623 /* create anew and remember what it is */
6625 ptr_table_store(PL_ptr_table, sstr, dstr);
6628 SvFLAGS(dstr) = SvFLAGS(sstr);
6629 SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */
6630 SvREFCNT(dstr) = 0; /* must be before any other dups! */
6633 if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx)
6634 PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n",
6635 PL_watch_pvx, SvPVX(sstr));
6638 switch (SvTYPE(sstr)) {
6643 SvANY(dstr) = new_XIV();
6644 SvIVX(dstr) = SvIVX(sstr);
6647 SvANY(dstr) = new_XNV();
6648 SvNVX(dstr) = SvNVX(sstr);
6651 SvANY(dstr) = new_XRV();
6652 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6655 SvANY(dstr) = new_XPV();
6656 SvCUR(dstr) = SvCUR(sstr);
6657 SvLEN(dstr) = SvLEN(sstr);
6659 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6660 else if (SvPVX(sstr) && SvLEN(sstr))
6661 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6663 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6666 SvANY(dstr) = new_XPVIV();
6667 SvCUR(dstr) = SvCUR(sstr);
6668 SvLEN(dstr) = SvLEN(sstr);
6669 SvIVX(dstr) = SvIVX(sstr);
6671 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6672 else if (SvPVX(sstr) && SvLEN(sstr))
6673 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6675 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6678 SvANY(dstr) = new_XPVNV();
6679 SvCUR(dstr) = SvCUR(sstr);
6680 SvLEN(dstr) = SvLEN(sstr);
6681 SvIVX(dstr) = SvIVX(sstr);
6682 SvNVX(dstr) = SvNVX(sstr);
6684 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6685 else if (SvPVX(sstr) && SvLEN(sstr))
6686 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6688 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6691 SvANY(dstr) = new_XPVMG();
6692 SvCUR(dstr) = SvCUR(sstr);
6693 SvLEN(dstr) = SvLEN(sstr);
6694 SvIVX(dstr) = SvIVX(sstr);
6695 SvNVX(dstr) = SvNVX(sstr);
6696 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6697 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6699 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6700 else if (SvPVX(sstr) && SvLEN(sstr))
6701 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6703 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6706 SvANY(dstr) = new_XPVBM();
6707 SvCUR(dstr) = SvCUR(sstr);
6708 SvLEN(dstr) = SvLEN(sstr);
6709 SvIVX(dstr) = SvIVX(sstr);
6710 SvNVX(dstr) = SvNVX(sstr);
6711 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6712 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6714 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6715 else if (SvPVX(sstr) && SvLEN(sstr))
6716 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6718 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6719 BmRARE(dstr) = BmRARE(sstr);
6720 BmUSEFUL(dstr) = BmUSEFUL(sstr);
6721 BmPREVIOUS(dstr)= BmPREVIOUS(sstr);
6724 SvANY(dstr) = new_XPVLV();
6725 SvCUR(dstr) = SvCUR(sstr);
6726 SvLEN(dstr) = SvLEN(sstr);
6727 SvIVX(dstr) = SvIVX(sstr);
6728 SvNVX(dstr) = SvNVX(sstr);
6729 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6730 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6732 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6733 else if (SvPVX(sstr) && SvLEN(sstr))
6734 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6736 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6737 LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */
6738 LvTARGLEN(dstr) = LvTARGLEN(sstr);
6739 LvTARG(dstr) = sv_dup_inc(LvTARG(sstr));
6740 LvTYPE(dstr) = LvTYPE(sstr);
6743 SvANY(dstr) = new_XPVGV();
6744 SvCUR(dstr) = SvCUR(sstr);
6745 SvLEN(dstr) = SvLEN(sstr);
6746 SvIVX(dstr) = SvIVX(sstr);
6747 SvNVX(dstr) = SvNVX(sstr);
6748 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6749 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6751 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6752 else if (SvPVX(sstr) && SvLEN(sstr))
6753 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6755 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6756 GvNAMELEN(dstr) = GvNAMELEN(sstr);
6757 GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr));
6758 GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr));
6759 GvFLAGS(dstr) = GvFLAGS(sstr);
6760 GvGP(dstr) = gp_dup(GvGP(sstr));
6761 (void)GpREFCNT_inc(GvGP(dstr));
6764 SvANY(dstr) = new_XPVIO();
6765 SvCUR(dstr) = SvCUR(sstr);
6766 SvLEN(dstr) = SvLEN(sstr);
6767 SvIVX(dstr) = SvIVX(sstr);
6768 SvNVX(dstr) = SvNVX(sstr);
6769 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6770 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6772 SvRV(dstr) = sv_dup_inc(SvRV(sstr));
6773 else if (SvPVX(sstr) && SvLEN(sstr))
6774 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6776 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6777 IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr));
6778 if (IoOFP(sstr) == IoIFP(sstr))
6779 IoOFP(dstr) = IoIFP(dstr);
6781 IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr));
6782 /* PL_rsfp_filters entries have fake IoDIRP() */
6783 if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP))
6784 IoDIRP(dstr) = dirp_dup(IoDIRP(sstr));
6786 IoDIRP(dstr) = IoDIRP(sstr);
6787 IoLINES(dstr) = IoLINES(sstr);
6788 IoPAGE(dstr) = IoPAGE(sstr);
6789 IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr);
6790 IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr);
6791 IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr));
6792 IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr));
6793 IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr));
6794 IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr));
6795 IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr));
6796 IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr));
6797 IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr);
6798 IoTYPE(dstr) = IoTYPE(sstr);
6799 IoFLAGS(dstr) = IoFLAGS(sstr);
6802 SvANY(dstr) = new_XPVAV();
6803 SvCUR(dstr) = SvCUR(sstr);
6804 SvLEN(dstr) = SvLEN(sstr);
6805 SvIVX(dstr) = SvIVX(sstr);
6806 SvNVX(dstr) = SvNVX(sstr);
6807 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6808 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6809 AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr));
6810 AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr);
6811 if (AvARRAY((AV*)sstr)) {
6812 SV **dst_ary, **src_ary;
6813 SSize_t items = AvFILLp((AV*)sstr) + 1;
6815 src_ary = AvARRAY((AV*)sstr);
6816 Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*);
6817 ptr_table_store(PL_ptr_table, src_ary, dst_ary);
6818 SvPVX(dstr) = (char*)dst_ary;
6819 AvALLOC((AV*)dstr) = dst_ary;
6820 if (AvREAL((AV*)sstr)) {
6822 *dst_ary++ = sv_dup_inc(*src_ary++);
6826 *dst_ary++ = sv_dup(*src_ary++);
6828 items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr);
6829 while (items-- > 0) {
6830 *dst_ary++ = &PL_sv_undef;
6834 SvPVX(dstr) = Nullch;
6835 AvALLOC((AV*)dstr) = (SV**)NULL;
6839 SvANY(dstr) = new_XPVHV();
6840 SvCUR(dstr) = SvCUR(sstr);
6841 SvLEN(dstr) = SvLEN(sstr);
6842 SvIVX(dstr) = SvIVX(sstr);
6843 SvNVX(dstr) = SvNVX(sstr);
6844 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6845 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6846 HvRITER((HV*)dstr) = HvRITER((HV*)sstr);
6847 if (HvARRAY((HV*)sstr)) {
6849 XPVHV *dxhv = (XPVHV*)SvANY(dstr);
6850 XPVHV *sxhv = (XPVHV*)SvANY(sstr);
6851 Newz(0, dxhv->xhv_array,
6852 PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char);
6853 while (i <= sxhv->xhv_max) {
6854 ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i],
6855 !!HvSHAREKEYS(sstr));
6858 dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr));
6861 SvPVX(dstr) = Nullch;
6862 HvEITER((HV*)dstr) = (HE*)NULL;
6864 HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */
6865 HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr));
6868 SvANY(dstr) = new_XPVFM();
6869 FmLINES(dstr) = FmLINES(sstr);
6873 SvANY(dstr) = new_XPVCV();
6875 SvCUR(dstr) = SvCUR(sstr);
6876 SvLEN(dstr) = SvLEN(sstr);
6877 SvIVX(dstr) = SvIVX(sstr);
6878 SvNVX(dstr) = SvNVX(sstr);
6879 SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr));
6880 SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr));
6881 if (SvPVX(sstr) && SvLEN(sstr))
6882 SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1);
6884 SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */
6885 CvSTASH(dstr) = hv_dup(CvSTASH(sstr));/* NOTE: not refcounted */
6886 CvSTART(dstr) = CvSTART(sstr);
6887 CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr));
6888 CvXSUB(dstr) = CvXSUB(sstr);
6889 CvXSUBANY(dstr) = CvXSUBANY(sstr);
6890 CvGV(dstr) = gv_dup_inc(CvGV(sstr));
6891 CvDEPTH(dstr) = CvDEPTH(sstr);
6892 if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) {
6893 /* XXX padlists are real, but pretend to be not */
6894 AvREAL_on(CvPADLIST(sstr));
6895 CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr));
6896 AvREAL_off(CvPADLIST(sstr));
6897 AvREAL_off(CvPADLIST(dstr));
6900 CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr));
6901 CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr));
6902 CvFLAGS(dstr) = CvFLAGS(sstr);
6905 Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr));
6909 if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO)
6916 Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max)
6921 return (PERL_CONTEXT*)NULL;
6923 /* look for it in the table first */
6924 ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs);
6928 /* create anew and remember what it is */
6929 Newz(56, ncxs, max + 1, PERL_CONTEXT);
6930 ptr_table_store(PL_ptr_table, cxs, ncxs);
6933 PERL_CONTEXT *cx = &cxs[ix];
6934 PERL_CONTEXT *ncx = &ncxs[ix];
6935 ncx->cx_type = cx->cx_type;
6936 if (CxTYPE(cx) == CXt_SUBST) {
6937 Perl_croak(aTHX_ "Cloning substitution context is unimplemented");
6940 ncx->blk_oldsp = cx->blk_oldsp;
6941 ncx->blk_oldcop = cx->blk_oldcop;
6942 ncx->blk_oldretsp = cx->blk_oldretsp;
6943 ncx->blk_oldmarksp = cx->blk_oldmarksp;
6944 ncx->blk_oldscopesp = cx->blk_oldscopesp;
6945 ncx->blk_oldpm = cx->blk_oldpm;
6946 ncx->blk_gimme = cx->blk_gimme;
6947 switch (CxTYPE(cx)) {
6949 ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0
6950 ? cv_dup_inc(cx->blk_sub.cv)
6951 : cv_dup(cx->blk_sub.cv));
6952 ncx->blk_sub.argarray = (cx->blk_sub.hasargs
6953 ? av_dup_inc(cx->blk_sub.argarray)
6955 ncx->blk_sub.savearray = av_dup(cx->blk_sub.savearray);
6956 ncx->blk_sub.olddepth = cx->blk_sub.olddepth;
6957 ncx->blk_sub.hasargs = cx->blk_sub.hasargs;
6958 ncx->blk_sub.lval = cx->blk_sub.lval;
6961 ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval;
6962 ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type;
6963 ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv);
6964 ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root;
6965 ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text);
6968 ncx->blk_loop.label = cx->blk_loop.label;
6969 ncx->blk_loop.resetsp = cx->blk_loop.resetsp;
6970 ncx->blk_loop.redo_op = cx->blk_loop.redo_op;
6971 ncx->blk_loop.next_op = cx->blk_loop.next_op;
6972 ncx->blk_loop.last_op = cx->blk_loop.last_op;
6973 ncx->blk_loop.iterdata = (CxPADLOOP(cx)
6974 ? cx->blk_loop.iterdata
6975 : gv_dup((GV*)cx->blk_loop.iterdata));
6976 ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave);
6977 ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval);
6978 ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary);
6979 ncx->blk_loop.iterix = cx->blk_loop.iterix;
6980 ncx->blk_loop.itermax = cx->blk_loop.itermax;
6983 ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv);
6984 ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv);
6985 ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv);
6986 ncx->blk_sub.hasargs = cx->blk_sub.hasargs;
6999 Perl_si_dup(pTHX_ PERL_SI *si)
7004 return (PERL_SI*)NULL;
7006 /* look for it in the table first */
7007 nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si);
7011 /* create anew and remember what it is */
7012 Newz(56, nsi, 1, PERL_SI);
7013 ptr_table_store(PL_ptr_table, si, nsi);
7015 nsi->si_stack = av_dup_inc(si->si_stack);
7016 nsi->si_cxix = si->si_cxix;
7017 nsi->si_cxmax = si->si_cxmax;
7018 nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax);
7019 nsi->si_type = si->si_type;
7020 nsi->si_prev = si_dup(si->si_prev);
7021 nsi->si_next = si_dup(si->si_next);
7022 nsi->si_markoff = si->si_markoff;
7027 #define POPINT(ss,ix) ((ss)[--(ix)].any_i32)
7028 #define TOPINT(ss,ix) ((ss)[ix].any_i32)
7029 #define POPLONG(ss,ix) ((ss)[--(ix)].any_long)
7030 #define TOPLONG(ss,ix) ((ss)[ix].any_long)
7031 #define POPIV(ss,ix) ((ss)[--(ix)].any_iv)
7032 #define TOPIV(ss,ix) ((ss)[ix].any_iv)
7033 #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr)
7034 #define TOPPTR(ss,ix) ((ss)[ix].any_ptr)
7035 #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr)
7036 #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr)
7037 #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr)
7038 #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr)
7041 #define pv_dup_inc(p) SAVEPV(p)
7042 #define pv_dup(p) SAVEPV(p)
7043 #define svp_dup_inc(p,pp) any_dup(p,pp)
7046 Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl)
7053 /* look for it in the table first */
7054 ret = ptr_table_fetch(PL_ptr_table, v);
7058 /* see if it is part of the interpreter structure */
7059 if (v >= (void*)proto_perl && v < (void*)(proto_perl+1))
7060 ret = (void*)(((char*)aTHXo) + (((char*)v) - (char*)proto_perl));
7068 Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl)
7070 ANY *ss = proto_perl->Tsavestack;
7071 I32 ix = proto_perl->Tsavestack_ix;
7072 I32 max = proto_perl->Tsavestack_max;
7085 void (*dptr) (void*);
7086 void (*dxptr) (pTHXo_ void*);
7088 Newz(54, nss, max, ANY);
7094 case SAVEt_ITEM: /* normal string */
7095 sv = (SV*)POPPTR(ss,ix);
7096 TOPPTR(nss,ix) = sv_dup_inc(sv);
7097 sv = (SV*)POPPTR(ss,ix);
7098 TOPPTR(nss,ix) = sv_dup_inc(sv);
7100 case SAVEt_SV: /* scalar reference */
7101 sv = (SV*)POPPTR(ss,ix);
7102 TOPPTR(nss,ix) = sv_dup_inc(sv);
7103 gv = (GV*)POPPTR(ss,ix);
7104 TOPPTR(nss,ix) = gv_dup_inc(gv);
7106 case SAVEt_GENERIC_SVREF: /* generic sv */
7107 case SAVEt_SVREF: /* scalar reference */
7108 sv = (SV*)POPPTR(ss,ix);
7109 TOPPTR(nss,ix) = sv_dup_inc(sv);
7110 ptr = POPPTR(ss,ix);
7111 TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */
7113 case SAVEt_AV: /* array reference */
7114 av = (AV*)POPPTR(ss,ix);
7115 TOPPTR(nss,ix) = av_dup_inc(av);
7116 gv = (GV*)POPPTR(ss,ix);
7117 TOPPTR(nss,ix) = gv_dup(gv);
7119 case SAVEt_HV: /* hash reference */
7120 hv = (HV*)POPPTR(ss,ix);
7121 TOPPTR(nss,ix) = hv_dup_inc(hv);
7122 gv = (GV*)POPPTR(ss,ix);
7123 TOPPTR(nss,ix) = gv_dup(gv);
7125 case SAVEt_INT: /* int reference */
7126 ptr = POPPTR(ss,ix);
7127 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7128 intval = (int)POPINT(ss,ix);
7129 TOPINT(nss,ix) = intval;
7131 case SAVEt_LONG: /* long reference */
7132 ptr = POPPTR(ss,ix);
7133 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7134 longval = (long)POPLONG(ss,ix);
7135 TOPLONG(nss,ix) = longval;
7137 case SAVEt_I32: /* I32 reference */
7138 case SAVEt_I16: /* I16 reference */
7139 case SAVEt_I8: /* I8 reference */
7140 ptr = POPPTR(ss,ix);
7141 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7145 case SAVEt_IV: /* IV reference */
7146 ptr = POPPTR(ss,ix);
7147 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7151 case SAVEt_SPTR: /* SV* reference */
7152 ptr = POPPTR(ss,ix);
7153 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7154 sv = (SV*)POPPTR(ss,ix);
7155 TOPPTR(nss,ix) = sv_dup(sv);
7157 case SAVEt_VPTR: /* random* reference */
7158 ptr = POPPTR(ss,ix);
7159 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7160 ptr = POPPTR(ss,ix);
7161 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7163 case SAVEt_PPTR: /* char* reference */
7164 ptr = POPPTR(ss,ix);
7165 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7166 c = (char*)POPPTR(ss,ix);
7167 TOPPTR(nss,ix) = pv_dup(c);
7169 case SAVEt_HPTR: /* HV* reference */
7170 ptr = POPPTR(ss,ix);
7171 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7172 hv = (HV*)POPPTR(ss,ix);
7173 TOPPTR(nss,ix) = hv_dup(hv);
7175 case SAVEt_APTR: /* AV* reference */
7176 ptr = POPPTR(ss,ix);
7177 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7178 av = (AV*)POPPTR(ss,ix);
7179 TOPPTR(nss,ix) = av_dup(av);
7182 gv = (GV*)POPPTR(ss,ix);
7183 TOPPTR(nss,ix) = gv_dup(gv);
7185 case SAVEt_GP: /* scalar reference */
7186 gp = (GP*)POPPTR(ss,ix);
7187 TOPPTR(nss,ix) = gp = gp_dup(gp);
7188 (void)GpREFCNT_inc(gp);
7189 gv = (GV*)POPPTR(ss,ix);
7190 TOPPTR(nss,ix) = gv_dup_inc(c);
7191 c = (char*)POPPTR(ss,ix);
7192 TOPPTR(nss,ix) = pv_dup(c);
7199 sv = (SV*)POPPTR(ss,ix);
7200 TOPPTR(nss,ix) = sv_dup_inc(sv);
7203 ptr = POPPTR(ss,ix);
7204 if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) {
7205 /* these are assumed to be refcounted properly */
7206 switch (((OP*)ptr)->op_type) {
7213 TOPPTR(nss,ix) = any_dup(ptr, proto_perl);
7216 TOPPTR(nss,ix) = Nullop;
7221 TOPPTR(nss,ix) = Nullop;
7224 c = (char*)POPPTR(ss,ix);
7225 TOPPTR(nss,ix) = pv_dup_inc(c);
7228 longval = POPLONG(ss,ix);
7229 TOPLONG(nss,ix) = longval;
7232 hv = (HV*)POPPTR(ss,ix);
7233 TOPPTR(nss,ix) = hv_dup_inc(hv);
7234 c = (char*)POPPTR(ss,ix);
7235 TOPPTR(nss,ix) = pv_dup_inc(c);
7239 case SAVEt_DESTRUCTOR:
7240 ptr = POPPTR(ss,ix);
7241 TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */
7242 dptr = POPDPTR(ss,ix);
7243 TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl);
7245 case SAVEt_DESTRUCTOR_X:
7246 ptr = POPPTR(ss,ix);
7247 TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */
7248 dxptr = POPDXPTR(ss,ix);
7249 TOPDXPTR(nss,ix) = (void (*)(pTHXo_ void*))any_dup((void *)dxptr, proto_perl);
7251 case SAVEt_REGCONTEXT:
7257 case SAVEt_STACK_POS: /* Position on Perl stack */
7261 case SAVEt_AELEM: /* array element */
7262 sv = (SV*)POPPTR(ss,ix);
7263 TOPPTR(nss,ix) = sv_dup_inc(sv);
7266 av = (AV*)POPPTR(ss,ix);
7267 TOPPTR(nss,ix) = av_dup_inc(av);
7269 case SAVEt_HELEM: /* hash element */
7270 sv = (SV*)POPPTR(ss,ix);
7271 TOPPTR(nss,ix) = sv_dup_inc(sv);
7272 sv = (SV*)POPPTR(ss,ix);
7273 TOPPTR(nss,ix) = sv_dup_inc(sv);
7274 hv = (HV*)POPPTR(ss,ix);
7275 TOPPTR(nss,ix) = hv_dup_inc(hv);
7278 ptr = POPPTR(ss,ix);
7279 TOPPTR(nss,ix) = ptr;
7286 av = (AV*)POPPTR(ss,ix);
7287 TOPPTR(nss,ix) = av_dup(av);
7290 Perl_croak(aTHX_ "panic: ss_dup inconsistency");
7302 perl_clone(PerlInterpreter *proto_perl, UV flags)
7305 CPerlObj *pPerl = (CPerlObj*)proto_perl;
7308 #ifdef PERL_IMPLICIT_SYS
7309 return perl_clone_using(proto_perl, flags,
7311 proto_perl->IMemShared,
7312 proto_perl->IMemParse,
7322 perl_clone_using(PerlInterpreter *proto_perl, UV flags,
7323 struct IPerlMem* ipM, struct IPerlMem* ipMS,
7324 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
7325 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
7326 struct IPerlDir* ipD, struct IPerlSock* ipS,
7327 struct IPerlProc* ipP)
7329 /* XXX many of the string copies here can be optimized if they're
7330 * constants; they need to be allocated as common memory and just
7331 * their pointers copied. */
7335 CPerlObj *pPerl = new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd, ipLIO,
7337 PERL_SET_THX(pPerl);
7338 # else /* !PERL_OBJECT */
7339 PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
7340 PERL_SET_THX(my_perl);
7343 memset(my_perl, 0xab, sizeof(PerlInterpreter));
7348 # else /* !DEBUGGING */
7349 Zero(my_perl, 1, PerlInterpreter);
7350 # endif /* DEBUGGING */
7354 PL_MemShared = ipMS;
7362 # endif /* PERL_OBJECT */
7363 #else /* !PERL_IMPLICIT_SYS */
7365 PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
7366 PERL_SET_THX(my_perl);
7369 memset(my_perl, 0xab, sizeof(PerlInterpreter));
7374 # else /* !DEBUGGING */
7375 Zero(my_perl, 1, PerlInterpreter);
7376 # endif /* DEBUGGING */
7377 #endif /* PERL_IMPLICIT_SYS */
7380 PL_xiv_arenaroot = NULL;
7385 PL_xpviv_root = NULL;
7386 PL_xpvnv_root = NULL;
7387 PL_xpvcv_root = NULL;
7388 PL_xpvav_root = NULL;
7389 PL_xpvhv_root = NULL;
7390 PL_xpvmg_root = NULL;
7391 PL_xpvlv_root = NULL;
7392 PL_xpvbm_root = NULL;
7394 PL_nice_chunk = NULL;
7395 PL_nice_chunk_size = 0;
7398 PL_sv_root = Nullsv;
7399 PL_sv_arenaroot = Nullsv;
7401 PL_debug = proto_perl->Idebug;
7403 /* create SV map for pointer relocation */
7404 PL_ptr_table = ptr_table_new();
7406 /* initialize these special pointers as early as possible */
7407 SvANY(&PL_sv_undef) = NULL;
7408 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
7409 SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL;
7410 ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef);
7413 SvUPGRADE(&PL_sv_no, SVt_PVNV);
7415 SvANY(&PL_sv_no) = new_XPVNV();
7417 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
7418 SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV;
7419 SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0);
7420 SvCUR(&PL_sv_no) = 0;
7421 SvLEN(&PL_sv_no) = 1;
7422 SvNVX(&PL_sv_no) = 0;
7423 ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no);
7426 SvUPGRADE(&PL_sv_yes, SVt_PVNV);
7428 SvANY(&PL_sv_yes) = new_XPVNV();
7430 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
7431 SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV;
7432 SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1);
7433 SvCUR(&PL_sv_yes) = 1;
7434 SvLEN(&PL_sv_yes) = 2;
7435 SvNVX(&PL_sv_yes) = 1;
7436 ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes);
7438 /* create shared string table */
7439 PL_strtab = newHV();
7440 HvSHAREKEYS_off(PL_strtab);
7441 hv_ksplit(PL_strtab, 512);
7442 ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab);
7444 PL_compiling = proto_perl->Icompiling;
7445 PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv);
7446 PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file);
7447 ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling);
7448 if (!specialWARN(PL_compiling.cop_warnings))
7449 PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings);
7450 PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl);
7452 /* pseudo environmental stuff */
7453 PL_origargc = proto_perl->Iorigargc;
7455 New(0, PL_origargv, i+1, char*);
7456 PL_origargv[i] = '\0';
7458 PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]);
7460 PL_envgv = gv_dup(proto_perl->Ienvgv);
7461 PL_incgv = gv_dup(proto_perl->Iincgv);
7462 PL_hintgv = gv_dup(proto_perl->Ihintgv);
7463 PL_origfilename = SAVEPV(proto_perl->Iorigfilename);
7464 PL_diehook = sv_dup_inc(proto_perl->Idiehook);
7465 PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook);
7468 PL_minus_c = proto_perl->Iminus_c;
7469 PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel);
7470 PL_localpatches = proto_perl->Ilocalpatches;
7471 PL_splitstr = proto_perl->Isplitstr;
7472 PL_preprocess = proto_perl->Ipreprocess;
7473 PL_minus_n = proto_perl->Iminus_n;
7474 PL_minus_p = proto_perl->Iminus_p;
7475 PL_minus_l = proto_perl->Iminus_l;
7476 PL_minus_a = proto_perl->Iminus_a;
7477 PL_minus_F = proto_perl->Iminus_F;
7478 PL_doswitches = proto_perl->Idoswitches;
7479 PL_dowarn = proto_perl->Idowarn;
7480 PL_doextract = proto_perl->Idoextract;
7481 PL_sawampersand = proto_perl->Isawampersand;
7482 PL_unsafe = proto_perl->Iunsafe;
7483 PL_inplace = SAVEPV(proto_perl->Iinplace);
7484 PL_e_script = sv_dup_inc(proto_perl->Ie_script);
7485 PL_perldb = proto_perl->Iperldb;
7486 PL_perl_destruct_level = proto_perl->Iperl_destruct_level;
7488 /* magical thingies */
7489 /* XXX time(&PL_basetime) when asked for? */
7490 PL_basetime = proto_perl->Ibasetime;
7491 PL_formfeed = sv_dup(proto_perl->Iformfeed);
7493 PL_maxsysfd = proto_perl->Imaxsysfd;
7494 PL_multiline = proto_perl->Imultiline;
7495 PL_statusvalue = proto_perl->Istatusvalue;
7497 PL_statusvalue_vms = proto_perl->Istatusvalue_vms;
7500 /* shortcuts to various I/O objects */
7501 PL_stdingv = gv_dup(proto_perl->Istdingv);
7502 PL_stderrgv = gv_dup(proto_perl->Istderrgv);
7503 PL_defgv = gv_dup(proto_perl->Idefgv);
7504 PL_argvgv = gv_dup(proto_perl->Iargvgv);
7505 PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv);
7506 PL_argvout_stack = av_dup(proto_perl->Iargvout_stack);
7508 /* shortcuts to regexp stuff */
7509 PL_replgv = gv_dup(proto_perl->Ireplgv);
7511 /* shortcuts to misc objects */
7512 PL_errgv = gv_dup(proto_perl->Ierrgv);
7514 /* shortcuts to debugging objects */
7515 PL_DBgv = gv_dup(proto_perl->IDBgv);
7516 PL_DBline = gv_dup(proto_perl->IDBline);
7517 PL_DBsub = gv_dup(proto_perl->IDBsub);
7518 PL_DBsingle = sv_dup(proto_perl->IDBsingle);
7519 PL_DBtrace = sv_dup(proto_perl->IDBtrace);
7520 PL_DBsignal = sv_dup(proto_perl->IDBsignal);
7521 PL_lineary = av_dup(proto_perl->Ilineary);
7522 PL_dbargs = av_dup(proto_perl->Idbargs);
7525 PL_defstash = hv_dup_inc(proto_perl->Tdefstash);
7526 PL_curstash = hv_dup(proto_perl->Tcurstash);
7527 PL_debstash = hv_dup(proto_perl->Idebstash);
7528 PL_globalstash = hv_dup(proto_perl->Iglobalstash);
7529 PL_curstname = sv_dup_inc(proto_perl->Icurstname);
7531 PL_beginav = av_dup_inc(proto_perl->Ibeginav);
7532 PL_endav = av_dup_inc(proto_perl->Iendav);
7533 PL_checkav = av_dup_inc(proto_perl->Icheckav);
7534 PL_initav = av_dup_inc(proto_perl->Iinitav);
7536 PL_sub_generation = proto_perl->Isub_generation;
7538 /* funky return mechanisms */
7539 PL_forkprocess = proto_perl->Iforkprocess;
7541 /* subprocess state */
7542 PL_fdpid = av_dup_inc(proto_perl->Ifdpid);
7544 /* internal state */
7545 PL_tainting = proto_perl->Itainting;
7546 PL_maxo = proto_perl->Imaxo;
7547 if (proto_perl->Iop_mask)
7548 PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo);
7550 PL_op_mask = Nullch;
7552 /* current interpreter roots */
7553 PL_main_cv = cv_dup_inc(proto_perl->Imain_cv);
7554 PL_main_root = OpREFCNT_inc(proto_perl->Imain_root);
7555 PL_main_start = proto_perl->Imain_start;
7556 PL_eval_root = OpREFCNT_inc(proto_perl->Ieval_root);
7557 PL_eval_start = proto_perl->Ieval_start;
7559 /* runtime control stuff */
7560 PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl);
7561 PL_copline = proto_perl->Icopline;
7563 PL_filemode = proto_perl->Ifilemode;
7564 PL_lastfd = proto_perl->Ilastfd;
7565 PL_oldname = proto_perl->Ioldname; /* XXX not quite right */
7568 PL_gensym = proto_perl->Igensym;
7569 PL_preambled = proto_perl->Ipreambled;
7570 PL_preambleav = av_dup_inc(proto_perl->Ipreambleav);
7571 PL_laststatval = proto_perl->Ilaststatval;
7572 PL_laststype = proto_perl->Ilaststype;
7573 PL_mess_sv = Nullsv;
7575 PL_orslen = proto_perl->Iorslen;
7576 PL_ors = SAVEPVN(proto_perl->Iors, PL_orslen);
7577 PL_ofmt = SAVEPV(proto_perl->Iofmt);
7579 /* interpreter atexit processing */
7580 PL_exitlistlen = proto_perl->Iexitlistlen;
7581 if (PL_exitlistlen) {
7582 New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry);
7583 Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry);
7586 PL_exitlist = (PerlExitListEntry*)NULL;
7587 PL_modglobal = hv_dup_inc(proto_perl->Imodglobal);
7589 PL_profiledata = NULL;
7590 PL_rsfp = fp_dup(proto_perl->Irsfp, '<');
7591 /* PL_rsfp_filters entries have fake IoDIRP() */
7592 PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters);
7594 PL_compcv = cv_dup(proto_perl->Icompcv);
7595 PL_comppad = av_dup(proto_perl->Icomppad);
7596 PL_comppad_name = av_dup(proto_perl->Icomppad_name);
7597 PL_comppad_name_fill = proto_perl->Icomppad_name_fill;
7598 PL_comppad_name_floor = proto_perl->Icomppad_name_floor;
7599 PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table,
7600 proto_perl->Tcurpad);
7602 #ifdef HAVE_INTERP_INTERN
7603 sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern);
7606 /* more statics moved here */
7607 PL_generation = proto_perl->Igeneration;
7608 PL_DBcv = cv_dup(proto_perl->IDBcv);
7610 PL_in_clean_objs = proto_perl->Iin_clean_objs;
7611 PL_in_clean_all = proto_perl->Iin_clean_all;
7613 PL_uid = proto_perl->Iuid;
7614 PL_euid = proto_perl->Ieuid;
7615 PL_gid = proto_perl->Igid;
7616 PL_egid = proto_perl->Iegid;
7617 PL_nomemok = proto_perl->Inomemok;
7618 PL_an = proto_perl->Ian;
7619 PL_cop_seqmax = proto_perl->Icop_seqmax;
7620 PL_op_seqmax = proto_perl->Iop_seqmax;
7621 PL_evalseq = proto_perl->Ievalseq;
7622 PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */
7623 PL_origalen = proto_perl->Iorigalen;
7624 PL_pidstatus = newHV(); /* XXX flag for cloning? */
7625 PL_osname = SAVEPV(proto_perl->Iosname);
7626 PL_sh_path = SAVEPV(proto_perl->Ish_path);
7627 PL_sighandlerp = proto_perl->Isighandlerp;
7630 PL_runops = proto_perl->Irunops;
7632 Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char);
7635 PL_cshlen = proto_perl->Icshlen;
7636 PL_cshname = SAVEPVN(proto_perl->Icshname, PL_cshlen);
7639 PL_lex_state = proto_perl->Ilex_state;
7640 PL_lex_defer = proto_perl->Ilex_defer;
7641 PL_lex_expect = proto_perl->Ilex_expect;
7642 PL_lex_formbrack = proto_perl->Ilex_formbrack;
7643 PL_lex_dojoin = proto_perl->Ilex_dojoin;
7644 PL_lex_starts = proto_perl->Ilex_starts;
7645 PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff);
7646 PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl);
7647 PL_lex_op = proto_perl->Ilex_op;
7648 PL_lex_inpat = proto_perl->Ilex_inpat;
7649 PL_lex_inwhat = proto_perl->Ilex_inwhat;
7650 PL_lex_brackets = proto_perl->Ilex_brackets;
7651 i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets);
7652 PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i);
7653 PL_lex_casemods = proto_perl->Ilex_casemods;
7654 i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods);
7655 PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i);
7657 Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE);
7658 Copy(proto_perl->Inexttype, PL_nexttype, 5, I32);
7659 PL_nexttoke = proto_perl->Inexttoke;
7661 PL_linestr = sv_dup_inc(proto_perl->Ilinestr);
7662 i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr);
7663 PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7664 i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr);
7665 PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7666 i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr);
7667 PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7668 PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr);
7669 i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr);
7670 PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7671 PL_pending_ident = proto_perl->Ipending_ident;
7672 PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */
7674 PL_expect = proto_perl->Iexpect;
7676 PL_multi_start = proto_perl->Imulti_start;
7677 PL_multi_end = proto_perl->Imulti_end;
7678 PL_multi_open = proto_perl->Imulti_open;
7679 PL_multi_close = proto_perl->Imulti_close;
7681 PL_error_count = proto_perl->Ierror_count;
7682 PL_subline = proto_perl->Isubline;
7683 PL_subname = sv_dup_inc(proto_perl->Isubname);
7685 PL_min_intro_pending = proto_perl->Imin_intro_pending;
7686 PL_max_intro_pending = proto_perl->Imax_intro_pending;
7687 PL_padix = proto_perl->Ipadix;
7688 PL_padix_floor = proto_perl->Ipadix_floor;
7689 PL_pad_reset_pending = proto_perl->Ipad_reset_pending;
7691 i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr);
7692 PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7693 i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr);
7694 PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i);
7695 PL_last_lop_op = proto_perl->Ilast_lop_op;
7696 PL_in_my = proto_perl->Iin_my;
7697 PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash);
7699 PL_cryptseen = proto_perl->Icryptseen;
7702 PL_hints = proto_perl->Ihints;
7704 PL_amagic_generation = proto_perl->Iamagic_generation;
7706 #ifdef USE_LOCALE_COLLATE
7707 PL_collation_ix = proto_perl->Icollation_ix;
7708 PL_collation_name = SAVEPV(proto_perl->Icollation_name);
7709 PL_collation_standard = proto_perl->Icollation_standard;
7710 PL_collxfrm_base = proto_perl->Icollxfrm_base;
7711 PL_collxfrm_mult = proto_perl->Icollxfrm_mult;
7712 #endif /* USE_LOCALE_COLLATE */
7714 #ifdef USE_LOCALE_NUMERIC
7715 PL_numeric_name = SAVEPV(proto_perl->Inumeric_name);
7716 PL_numeric_standard = proto_perl->Inumeric_standard;
7717 PL_numeric_local = proto_perl->Inumeric_local;
7718 PL_numeric_radix = proto_perl->Inumeric_radix;
7719 #endif /* !USE_LOCALE_NUMERIC */
7721 /* utf8 character classes */
7722 PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum);
7723 PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc);
7724 PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii);
7725 PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha);
7726 PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space);
7727 PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl);
7728 PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph);
7729 PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit);
7730 PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper);
7731 PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower);
7732 PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print);
7733 PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct);
7734 PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit);
7735 PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark);
7736 PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper);
7737 PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle);
7738 PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower);
7741 PL_last_swash_hv = Nullhv; /* reinits on demand */
7742 PL_last_swash_klen = 0;
7743 PL_last_swash_key[0]= '\0';
7744 PL_last_swash_tmps = (U8*)NULL;
7745 PL_last_swash_slen = 0;
7747 /* perly.c globals */
7748 PL_yydebug = proto_perl->Iyydebug;
7749 PL_yynerrs = proto_perl->Iyynerrs;
7750 PL_yyerrflag = proto_perl->Iyyerrflag;
7751 PL_yychar = proto_perl->Iyychar;
7752 PL_yyval = proto_perl->Iyyval;
7753 PL_yylval = proto_perl->Iyylval;
7755 PL_glob_index = proto_perl->Iglob_index;
7756 PL_srand_called = proto_perl->Isrand_called;
7757 PL_uudmap['M'] = 0; /* reinits on demand */
7758 PL_bitcount = Nullch; /* reinits on demand */
7760 if (proto_perl->Ipsig_ptr) {
7761 int sig_num[] = { SIG_NUM };
7762 Newz(0, PL_psig_ptr, sizeof(sig_num)/sizeof(*sig_num), SV*);
7763 Newz(0, PL_psig_name, sizeof(sig_num)/sizeof(*sig_num), SV*);
7764 for (i = 1; PL_sig_name[i]; i++) {
7765 PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i]);
7766 PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i]);
7770 PL_psig_ptr = (SV**)NULL;
7771 PL_psig_name = (SV**)NULL;
7774 /* thrdvar.h stuff */
7777 /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */
7778 PL_tmps_ix = proto_perl->Ttmps_ix;
7779 PL_tmps_max = proto_perl->Ttmps_max;
7780 PL_tmps_floor = proto_perl->Ttmps_floor;
7781 Newz(50, PL_tmps_stack, PL_tmps_max, SV*);
7783 while (i <= PL_tmps_ix) {
7784 PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i]);
7788 /* next PUSHMARK() sets *(PL_markstack_ptr+1) */
7789 i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack;
7790 Newz(54, PL_markstack, i, I32);
7791 PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max
7792 - proto_perl->Tmarkstack);
7793 PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr
7794 - proto_perl->Tmarkstack);
7795 Copy(proto_perl->Tmarkstack, PL_markstack,
7796 PL_markstack_ptr - PL_markstack + 1, I32);
7798 /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix]
7799 * NOTE: unlike the others! */
7800 PL_scopestack_ix = proto_perl->Tscopestack_ix;
7801 PL_scopestack_max = proto_perl->Tscopestack_max;
7802 Newz(54, PL_scopestack, PL_scopestack_max, I32);
7803 Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32);
7805 /* next push_return() sets PL_retstack[PL_retstack_ix]
7806 * NOTE: unlike the others! */
7807 PL_retstack_ix = proto_perl->Tretstack_ix;
7808 PL_retstack_max = proto_perl->Tretstack_max;
7809 Newz(54, PL_retstack, PL_retstack_max, OP*);
7810 Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32);
7812 /* NOTE: si_dup() looks at PL_markstack */
7813 PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo);
7815 /* PL_curstack = PL_curstackinfo->si_stack; */
7816 PL_curstack = av_dup(proto_perl->Tcurstack);
7817 PL_mainstack = av_dup(proto_perl->Tmainstack);
7819 /* next PUSHs() etc. set *(PL_stack_sp+1) */
7820 PL_stack_base = AvARRAY(PL_curstack);
7821 PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp
7822 - proto_perl->Tstack_base);
7823 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
7825 /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix]
7826 * NOTE: unlike the others! */
7827 PL_savestack_ix = proto_perl->Tsavestack_ix;
7828 PL_savestack_max = proto_perl->Tsavestack_max;
7829 /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/
7830 PL_savestack = ss_dup(proto_perl);
7836 PL_start_env = proto_perl->Tstart_env; /* XXXXXX */
7837 PL_top_env = &PL_start_env;
7839 PL_op = proto_perl->Top;
7842 PL_Xpv = (XPV*)NULL;
7843 PL_na = proto_perl->Tna;
7845 PL_statbuf = proto_perl->Tstatbuf;
7846 PL_statcache = proto_perl->Tstatcache;
7847 PL_statgv = gv_dup(proto_perl->Tstatgv);
7848 PL_statname = sv_dup_inc(proto_perl->Tstatname);
7850 PL_timesbuf = proto_perl->Ttimesbuf;
7853 PL_tainted = proto_perl->Ttainted;
7854 PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */
7855 PL_nrs = sv_dup_inc(proto_perl->Tnrs);
7856 PL_rs = sv_dup_inc(proto_perl->Trs);
7857 PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv);
7858 PL_ofslen = proto_perl->Tofslen;
7859 PL_ofs = SAVEPVN(proto_perl->Tofs, PL_ofslen);
7860 PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv);
7861 PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */
7862 PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget);
7863 PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget);
7864 PL_formtarget = sv_dup(proto_perl->Tformtarget);
7866 PL_restartop = proto_perl->Trestartop;
7867 PL_in_eval = proto_perl->Tin_eval;
7868 PL_delaymagic = proto_perl->Tdelaymagic;
7869 PL_dirty = proto_perl->Tdirty;
7870 PL_localizing = proto_perl->Tlocalizing;
7872 #ifdef PERL_FLEXIBLE_EXCEPTIONS
7873 PL_protect = proto_perl->Tprotect;
7875 PL_errors = sv_dup_inc(proto_perl->Terrors);
7876 PL_av_fetch_sv = Nullsv;
7877 PL_hv_fetch_sv = Nullsv;
7878 Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */
7879 PL_modcount = proto_perl->Tmodcount;
7880 PL_lastgotoprobe = Nullop;
7881 PL_dumpindent = proto_perl->Tdumpindent;
7883 PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl);
7884 PL_sortstash = hv_dup(proto_perl->Tsortstash);
7885 PL_firstgv = gv_dup(proto_perl->Tfirstgv);
7886 PL_secondgv = gv_dup(proto_perl->Tsecondgv);
7887 PL_sortcxix = proto_perl->Tsortcxix;
7888 PL_efloatbuf = Nullch; /* reinits on demand */
7889 PL_efloatsize = 0; /* reinits on demand */
7893 PL_screamfirst = NULL;
7894 PL_screamnext = NULL;
7895 PL_maxscream = -1; /* reinits on demand */
7896 PL_lastscream = Nullsv;
7898 PL_watchaddr = NULL;
7899 PL_watchok = Nullch;
7901 PL_regdummy = proto_perl->Tregdummy;
7902 PL_regcomp_parse = Nullch;
7903 PL_regxend = Nullch;
7904 PL_regcode = (regnode*)NULL;
7907 PL_regprecomp = Nullch;
7912 PL_seen_zerolen = 0;
7914 PL_regcomp_rx = (regexp*)NULL;
7916 PL_colorset = 0; /* reinits PL_colors[] */
7917 /*PL_colors[6] = {0,0,0,0,0,0};*/
7918 PL_reg_whilem_seen = 0;
7919 PL_reginput = Nullch;
7922 PL_regstartp = (I32*)NULL;
7923 PL_regendp = (I32*)NULL;
7924 PL_reglastparen = (U32*)NULL;
7925 PL_regtill = Nullch;
7927 PL_reg_start_tmp = (char**)NULL;
7928 PL_reg_start_tmpl = 0;
7929 PL_regdata = (struct reg_data*)NULL;
7932 PL_reg_eval_set = 0;
7934 PL_regprogram = (regnode*)NULL;
7936 PL_regcc = (CURCUR*)NULL;
7937 PL_reg_call_cc = (struct re_cc_state*)NULL;
7938 PL_reg_re = (regexp*)NULL;
7939 PL_reg_ganch = Nullch;
7941 PL_reg_magic = (MAGIC*)NULL;
7943 PL_reg_oldcurpm = (PMOP*)NULL;
7944 PL_reg_curpm = (PMOP*)NULL;
7945 PL_reg_oldsaved = Nullch;
7946 PL_reg_oldsavedlen = 0;
7948 PL_reg_leftiter = 0;
7949 PL_reg_poscache = Nullch;
7950 PL_reg_poscache_size= 0;
7952 /* RE engine - function pointers */
7953 PL_regcompp = proto_perl->Tregcompp;
7954 PL_regexecp = proto_perl->Tregexecp;
7955 PL_regint_start = proto_perl->Tregint_start;
7956 PL_regint_string = proto_perl->Tregint_string;
7957 PL_regfree = proto_perl->Tregfree;
7959 PL_reginterp_cnt = 0;
7960 PL_reg_starttry = 0;
7963 return (PerlInterpreter*)pPerl;
7969 #else /* !USE_ITHREADS */
7975 #endif /* USE_ITHREADS */
7978 do_report_used(pTHXo_ SV *sv)
7980 if (SvTYPE(sv) != SVTYPEMASK) {
7981 PerlIO_printf(Perl_debug_log, "****\n");
7987 do_clean_objs(pTHXo_ SV *sv)
7991 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
7992 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
7998 /* XXX Might want to check arrays, etc. */
8001 #ifndef DISABLE_DESTRUCTOR_KLUDGE
8003 do_clean_named_objs(pTHXo_ SV *sv)
8005 if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) {
8006 if ( SvOBJECT(GvSV(sv)) ||
8007 (GvAV(sv) && SvOBJECT(GvAV(sv))) ||
8008 (GvHV(sv) && SvOBJECT(GvHV(sv))) ||
8009 (GvIO(sv) && SvOBJECT(GvIO(sv))) ||
8010 (GvCV(sv) && SvOBJECT(GvCV(sv))) )
8012 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
8020 do_clean_all(pTHXo_ SV *sv)
8022 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) );)
8023 SvFLAGS(sv) |= SVf_BREAK;