3 * Copyright (c) 1991-1997, 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.
18 /* Use an overridden DBL_DIG */
22 # define DBL_DIG OVR_DBL_DIG
24 /* The following is all to get DBL_DIG, in order to pick a nice
25 default value for printing floating point numbers in Gconvert.
35 #define DBL_DIG 15 /* A guess that works lots of places */
40 #define FCALL this->*f
41 #define VTBL this->*vtbl
43 #else /* !PERL_OBJECT */
45 static IV asIV _((SV* sv));
46 static UV asUV _((SV* sv));
47 static SV *more_sv _((void));
48 static void more_xiv _((void));
49 static void more_xnv _((void));
50 static void more_xpv _((void));
51 static void more_xrv _((void));
52 static XPVIV *new_xiv _((void));
53 static XPVNV *new_xnv _((void));
54 static XPV *new_xpv _((void));
55 static XRV *new_xrv _((void));
56 static void del_xiv _((XPVIV* p));
57 static void del_xnv _((XPVNV* p));
58 static void del_xpv _((XPV* p));
59 static void del_xrv _((XRV* p));
60 static void sv_mortalgrow _((void));
61 static void sv_unglob _((SV* sv));
62 static void sv_check_thinkfirst _((SV *sv));
65 static void *my_safemalloc(MEM_SIZE size);
68 typedef void (*SVFUNC) _((SV*));
72 #endif /* PERL_OBJECT */
74 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv)
81 (p) = (SV*)safemalloc(sizeof(SV)); \
90 Safefree((char*)(p)); \
95 static I32 registry_size;
97 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
99 #define REG_REPLACE(sv,a,b) \
101 void* p = sv->sv_any; \
102 I32 h = REGHASH(sv, registry_size); \
104 while (registry[i] != (a)) { \
105 if (++i >= registry_size) \
108 die("SV registry bug"); \
113 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
114 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
120 if (PL_sv_count >= (registry_size >> 1))
122 SV **oldreg = registry;
123 I32 oldsize = registry_size;
125 registry_size = registry_size ? ((registry_size << 2) + 1) : 2037;
126 Newz(707, registry, registry_size, SV*);
131 for (i = 0; i < oldsize; ++i) {
132 SV* oldsv = oldreg[i];
158 for (i = 0; i < registry_size; ++i) {
159 SV* sv = registry[i];
160 if (sv && SvTYPE(sv) != SVTYPEMASK)
166 sv_add_arena(ptr, size, flags)
171 if (!(flags & SVf_FAKE))
178 * "A time to plant, and a time to uproot what was planted..."
181 #define plant_SV(p) \
183 SvANY(p) = (void *)PL_sv_root; \
184 SvFLAGS(p) = SVTYPEMASK; \
189 /* sv_mutex must be held while calling uproot_SV() */
190 #define uproot_SV(p) \
193 PL_sv_root = (SV*)SvANY(p); \
197 #define new_SV(p) do { \
208 #define del_SV(p) do { \
210 if (PL_debug & 32768) \
220 if (PL_debug & 32768) {
225 for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
227 svend = &sva[SvREFCNT(sva)];
228 if (p >= sv && p < svend)
232 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
239 #else /* ! DEBUGGING */
241 #define del_SV(p) plant_SV(p)
243 #endif /* DEBUGGING */
246 sv_add_arena(char *ptr, U32 size, U32 flags)
251 Zero(sva, size, char);
253 /* The first SV in an arena isn't an SV. */
254 SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */
255 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
256 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
258 PL_sv_arenaroot = sva;
259 PL_sv_root = sva + 1;
261 svend = &sva[SvREFCNT(sva) - 1];
264 SvANY(sv) = (void *)(SV*)(sv + 1);
265 SvFLAGS(sv) = SVTYPEMASK;
269 SvFLAGS(sv) = SVTYPEMASK;
272 /* sv_mutex must be held while calling more_sv() */
279 sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0);
280 PL_nice_chunk = Nullch;
283 char *chunk; /* must use New here to match call to */
284 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
285 sv_add_arena(chunk, 1008, 0);
298 for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
299 svend = &sva[SvREFCNT(sva)];
300 for (sv = sva + 1; sv < svend; ++sv) {
301 if (SvTYPE(sv) != SVTYPEMASK)
310 do_report_used(SV *sv)
312 if (SvTYPE(sv) != SVTYPEMASK) {
313 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
314 PerlIO_printf(PerlIO_stderr(), "****\n");
322 visit(FUNC_NAME_TO_PTR(do_report_used));
326 do_clean_objs(SV *sv)
330 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
331 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
337 /* XXX Might want to check arrays, etc. */
340 #ifndef DISABLE_DESTRUCTOR_KLUDGE
342 do_clean_named_objs(SV *sv)
344 if (SvTYPE(sv) == SVt_PVGV) {
345 if ( SvOBJECT(GvSV(sv)) ||
346 GvAV(sv) && SvOBJECT(GvAV(sv)) ||
347 GvHV(sv) && SvOBJECT(GvHV(sv)) ||
348 GvIO(sv) && SvOBJECT(GvIO(sv)) ||
349 GvCV(sv) && SvOBJECT(GvCV(sv)) )
351 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
361 PL_in_clean_objs = TRUE;
362 visit(FUNC_NAME_TO_PTR(do_clean_objs));
363 #ifndef DISABLE_DESTRUCTOR_KLUDGE
364 /* some barnacles may yet remain, clinging to typeglobs */
365 visit(FUNC_NAME_TO_PTR(do_clean_named_objs));
367 PL_in_clean_objs = FALSE;
373 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );)
374 SvFLAGS(sv) |= SVf_BREAK;
381 PL_in_clean_all = TRUE;
382 visit(FUNC_NAME_TO_PTR(do_clean_all));
383 PL_in_clean_all = FALSE;
392 /* Free arenas here, but be careful about fake ones. (We assume
393 contiguity of the fake ones with the corresponding real ones.) */
395 for (sva = PL_sv_arenaroot; sva; sva = svanext) {
396 svanext = (SV*) SvANY(sva);
397 while (svanext && SvFAKE(svanext))
398 svanext = (SV*) SvANY(svanext);
401 Safefree((void *)sva);
405 Safefree(PL_nice_chunk);
406 PL_nice_chunk = Nullch;
407 PL_nice_chunk_size = 0;
421 * See comment in more_xiv() -- RAM.
423 PL_xiv_root = *(IV**)xiv;
425 return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv));
431 IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv));
433 *(IV**)xiv = PL_xiv_root;
444 New(705, ptr, 1008/sizeof(XPV), XPV);
445 ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */
446 PL_xiv_arenaroot = ptr; /* to keep Purify happy */
449 xivend = &xiv[1008 / sizeof(IV) - 1];
450 xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */
452 while (xiv < xivend) {
453 *(IV**)xiv = (IV *)(xiv + 1);
467 PL_xnv_root = *(double**)xnv;
469 return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv));
475 double* xnv = (double*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv));
477 *(double**)xnv = PL_xnv_root;
485 register double* xnv;
486 register double* xnvend;
487 New(711, xnv, 1008/sizeof(double), double);
488 xnvend = &xnv[1008 / sizeof(double) - 1];
489 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
491 while (xnv < xnvend) {
492 *(double**)xnv = (double*)(xnv + 1);
506 PL_xrv_root = (XRV*)xrv->xrv_rv;
515 p->xrv_rv = (SV*)PL_xrv_root;
524 register XRV* xrvend;
525 New(712, PL_xrv_root, 1008/sizeof(XRV), XRV);
527 xrvend = &xrv[1008 / sizeof(XRV) - 1];
528 while (xrv < xrvend) {
529 xrv->xrv_rv = (SV*)(xrv + 1);
543 PL_xpv_root = (XPV*)xpv->xpv_pv;
552 p->xpv_pv = (char*)PL_xpv_root;
561 register XPV* xpvend;
562 New(713, PL_xpv_root, 1008/sizeof(XPV), XPV);
564 xpvend = &xpv[1008 / sizeof(XPV) - 1];
565 while (xpv < xpvend) {
566 xpv->xpv_pv = (char*)(xpv + 1);
573 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
574 #define del_XIV(p) Safefree((char*)p)
576 #define new_XIV() (void*)new_xiv()
577 #define del_XIV(p) del_xiv((XPVIV*) p)
581 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
582 #define del_XNV(p) Safefree((char*)p)
584 #define new_XNV() (void*)new_xnv()
585 #define del_XNV(p) del_xnv((XPVNV*) p)
589 #define new_XRV() (void*)safemalloc(sizeof(XRV))
590 #define del_XRV(p) Safefree((char*)p)
592 #define new_XRV() (void*)new_xrv()
593 #define del_XRV(p) del_xrv((XRV*) p)
597 #define new_XPV() (void*)safemalloc(sizeof(XPV))
598 #define del_XPV(p) Safefree((char*)p)
600 #define new_XPV() (void*)new_xpv()
601 #define del_XPV(p) del_xpv((XPV *)p)
605 # define my_safemalloc(s) safemalloc(s)
606 # define my_safefree(s) free(s)
609 my_safemalloc(MEM_SIZE size)
612 New(717, p, size, char);
615 # define my_safefree(s) Safefree(s)
618 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
619 #define del_XPVIV(p) my_safefree((char*)p)
621 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
622 #define del_XPVNV(p) my_safefree((char*)p)
624 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
625 #define del_XPVMG(p) my_safefree((char*)p)
627 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
628 #define del_XPVLV(p) my_safefree((char*)p)
630 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
631 #define del_XPVAV(p) my_safefree((char*)p)
633 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
634 #define del_XPVHV(p) my_safefree((char*)p)
636 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
637 #define del_XPVCV(p) my_safefree((char*)p)
639 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
640 #define del_XPVGV(p) my_safefree((char*)p)
642 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
643 #define del_XPVBM(p) my_safefree((char*)p)
645 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
646 #define del_XPVFM(p) my_safefree((char*)p)
648 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
649 #define del_XPVIO(p) my_safefree((char*)p)
652 sv_upgrade(register SV *sv, U32 mt)
662 if (SvTYPE(sv) == mt)
668 switch (SvTYPE(sv)) {
683 nv = (double)SvIVX(sv);
689 else if (mt < SVt_PVIV)
706 pv = (char*)SvRV(sv);
710 nv = (double)(unsigned long)pv;
726 else if (mt == SVt_NV)
737 del_XPVIV(SvANY(sv));
747 del_XPVNV(SvANY(sv));
757 del_XPVMG(SvANY(sv));
760 croak("Can't upgrade that kind of scalar");
765 croak("Can't upgrade to undef");
767 SvANY(sv) = new_XIV();
771 SvANY(sv) = new_XNV();
775 SvANY(sv) = new_XRV();
779 SvANY(sv) = new_XPV();
785 SvANY(sv) = new_XPVIV();
795 SvANY(sv) = new_XPVNV();
803 SvANY(sv) = new_XPVMG();
813 SvANY(sv) = new_XPVLV();
827 SvANY(sv) = new_XPVAV();
842 SvANY(sv) = new_XPVHV();
858 SvANY(sv) = new_XPVCV();
859 Zero(SvANY(sv), 1, XPVCV);
869 SvANY(sv) = new_XPVGV();
884 SvANY(sv) = new_XPVBM();
897 SvANY(sv) = new_XPVFM();
898 Zero(SvANY(sv), 1, XPVFM);
908 SvANY(sv) = new_XPVIO();
909 Zero(SvANY(sv), 1, XPVIO);
920 SvFLAGS(sv) &= ~SVTYPEMASK;
929 SV *t = sv_newmortal();
939 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
943 else if (sv == &PL_sv_undef || sv == &PL_sv_no || sv == &PL_sv_yes) {
944 if (sv == &PL_sv_undef) {
945 sv_catpv(t, "SV_UNDEF");
946 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
947 SVs_GMG|SVs_SMG|SVs_RMG)) &&
951 else if (sv == &PL_sv_no) {
952 sv_catpv(t, "SV_NO");
953 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
954 SVs_GMG|SVs_SMG|SVs_RMG)) &&
955 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
962 sv_catpv(t, "SV_YES");
963 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
964 SVs_GMG|SVs_SMG|SVs_RMG)) &&
965 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
968 SvPVX(sv) && *SvPVX(sv) == '1' &&
974 else if (SvREFCNT(sv) == 0) {
980 if (SvCUR(t) + unref > 10) {
981 SvCUR(t) = unref + 3;
989 switch (SvTYPE(sv)) {
991 sv_catpv(t, "FREED");
995 sv_catpv(t, "UNDEF");
1010 sv_catpv(t, "PVIV");
1013 sv_catpv(t, "PVNV");
1016 sv_catpv(t, "PVMG");
1019 sv_catpv(t, "PVLV");
1029 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1031 sv_catpv(t, "CV()");
1049 sv_catpv(t, "(null)");
1051 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1053 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1055 else if (SvNOKp(sv)) {
1056 SET_NUMERIC_STANDARD();
1057 sv_catpvf(t, "(%g)",SvNVX(sv));
1059 else if (SvIOKp(sv))
1060 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1069 return SvPV(t, PL_na);
1070 #else /* DEBUGGING */
1072 #endif /* DEBUGGING */
1076 sv_backoff(register SV *sv)
1080 char *s = SvPVX(sv);
1081 SvLEN(sv) += SvIVX(sv);
1082 SvPVX(sv) -= SvIVX(sv);
1084 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1086 SvFLAGS(sv) &= ~SVf_OOK;
1091 sv_grow(register SV *sv, register STRLEN newlen)
1095 #ifdef HAS_64K_LIMIT
1096 if (newlen >= 0x10000) {
1097 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1100 #endif /* HAS_64K_LIMIT */
1103 if (SvTYPE(sv) < SVt_PV) {
1104 sv_upgrade(sv, SVt_PV);
1107 else if (SvOOK(sv)) { /* pv is offset? */
1110 if (newlen > SvLEN(sv))
1111 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1112 #ifdef HAS_64K_LIMIT
1113 if (newlen >= 0x10000)
1119 if (newlen > SvLEN(sv)) { /* need more room? */
1120 if (SvLEN(sv) && s) {
1121 #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
1122 STRLEN l = malloced_size((void*)SvPVX(sv));
1128 Renew(s,newlen,char);
1131 New(703,s,newlen,char);
1133 SvLEN_set(sv, newlen);
1139 sv_setiv(register SV *sv, IV i)
1141 SV_CHECK_THINKFIRST(sv);
1142 switch (SvTYPE(sv)) {
1144 sv_upgrade(sv, SVt_IV);
1147 sv_upgrade(sv, SVt_PVNV);
1151 sv_upgrade(sv, SVt_PVIV);
1167 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1168 PL_op_desc[PL_op->op_type]);
1171 (void)SvIOK_only(sv); /* validate number */
1177 sv_setiv_mg(register SV *sv, IV i)
1184 sv_setuv(register SV *sv, UV u)
1189 sv_setnv(sv, (double)u);
1193 sv_setuv_mg(register SV *sv, UV u)
1200 sv_setnv(register SV *sv, double num)
1202 SV_CHECK_THINKFIRST(sv);
1203 switch (SvTYPE(sv)) {
1206 sv_upgrade(sv, SVt_NV);
1211 sv_upgrade(sv, SVt_PVNV);
1227 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1228 PL_op_name[PL_op->op_type]);
1232 (void)SvNOK_only(sv); /* validate number */
1237 sv_setnv_mg(register SV *sv, double num)
1244 not_a_number(SV *sv)
1250 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1251 /* each *s can expand to 4 chars + "...\0",
1252 i.e. need room for 8 chars */
1254 for (s = SvPVX(sv); *s && d < limit; s++) {
1256 if (ch & 128 && !isPRINT_LC(ch)) {
1265 else if (ch == '\r') {
1269 else if (ch == '\f') {
1273 else if (ch == '\\') {
1277 else if (isPRINT_LC(ch))
1292 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf,
1293 PL_op_name[PL_op->op_type]);
1295 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf);
1299 sv_2iv(register SV *sv)
1303 if (SvGMAGICAL(sv)) {
1308 if (SvNVX(sv) < 0.0)
1309 return I_V(SvNVX(sv));
1311 return (IV) U_V(SvNVX(sv));
1313 if (SvPOKp(sv) && SvLEN(sv))
1316 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1318 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1319 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1324 if (SvTHINKFIRST(sv)) {
1328 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1329 return SvIV(tmpstr);
1330 #endif /* OVERLOAD */
1331 return (IV)SvRV(sv);
1333 if (SvREADONLY(sv)) {
1335 if (SvNVX(sv) < 0.0)
1336 return I_V(SvNVX(sv));
1338 return (IV) U_V(SvNVX(sv));
1340 if (SvPOKp(sv) && SvLEN(sv))
1344 if (ckWARN(WARN_UNINITIALIZED))
1345 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1350 switch (SvTYPE(sv)) {
1352 sv_upgrade(sv, SVt_IV);
1355 sv_upgrade(sv, SVt_PVIV);
1358 sv_upgrade(sv, SVt_PVNV);
1363 if (SvNVX(sv) < 0.0)
1364 SvIVX(sv) = I_V(SvNVX(sv));
1366 SvUVX(sv) = U_V(SvNVX(sv));
1368 else if (SvPOKp(sv) && SvLEN(sv)) {
1370 SvIVX(sv) = asIV(sv);
1374 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1375 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1378 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1379 (unsigned long)sv,(long)SvIVX(sv)));
1384 sv_2uv(register SV *sv)
1388 if (SvGMAGICAL(sv)) {
1393 return U_V(SvNVX(sv));
1394 if (SvPOKp(sv) && SvLEN(sv))
1397 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1399 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1400 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1405 if (SvTHINKFIRST(sv)) {
1409 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1410 return SvUV(tmpstr);
1411 #endif /* OVERLOAD */
1412 return (UV)SvRV(sv);
1414 if (SvREADONLY(sv)) {
1416 return U_V(SvNVX(sv));
1418 if (SvPOKp(sv) && SvLEN(sv))
1422 if (ckWARN(WARN_UNINITIALIZED))
1423 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1428 switch (SvTYPE(sv)) {
1430 sv_upgrade(sv, SVt_IV);
1433 sv_upgrade(sv, SVt_PVIV);
1436 sv_upgrade(sv, SVt_PVNV);
1441 SvUVX(sv) = U_V(SvNVX(sv));
1443 else if (SvPOKp(sv) && SvLEN(sv)) {
1445 SvUVX(sv) = asUV(sv);
1448 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1450 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1451 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1455 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1456 (unsigned long)sv,SvUVX(sv)));
1461 sv_2nv(register SV *sv)
1465 if (SvGMAGICAL(sv)) {
1469 if (SvPOKp(sv) && SvLEN(sv)) {
1471 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1473 SET_NUMERIC_STANDARD();
1474 return atof(SvPVX(sv));
1477 return (double)SvIVX(sv);
1479 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1481 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1482 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1487 if (SvTHINKFIRST(sv)) {
1491 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1492 return SvNV(tmpstr);
1493 #endif /* OVERLOAD */
1494 return (double)(unsigned long)SvRV(sv);
1496 if (SvREADONLY(sv)) {
1498 if (SvPOKp(sv) && SvLEN(sv)) {
1499 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1501 SET_NUMERIC_STANDARD();
1502 return atof(SvPVX(sv));
1505 return (double)SvIVX(sv);
1506 if (ckWARN(WARN_UNINITIALIZED))
1507 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1511 if (SvTYPE(sv) < SVt_NV) {
1512 if (SvTYPE(sv) == SVt_IV)
1513 sv_upgrade(sv, SVt_PVNV);
1515 sv_upgrade(sv, SVt_NV);
1516 DEBUG_c(SET_NUMERIC_STANDARD());
1517 DEBUG_c(PerlIO_printf(Perl_debug_log,
1518 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1520 else if (SvTYPE(sv) < SVt_PVNV)
1521 sv_upgrade(sv, SVt_PVNV);
1523 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1525 SvNVX(sv) = (double)SvIVX(sv);
1527 else if (SvPOKp(sv) && SvLEN(sv)) {
1529 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1531 SET_NUMERIC_STANDARD();
1532 SvNVX(sv) = atof(SvPVX(sv));
1536 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1537 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1541 DEBUG_c(SET_NUMERIC_STANDARD());
1542 DEBUG_c(PerlIO_printf(Perl_debug_log,
1543 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1550 I32 numtype = looks_like_number(sv);
1554 return atol(SvPVX(sv));
1557 if (ckWARN(WARN_NUMERIC))
1560 SET_NUMERIC_STANDARD();
1561 d = atof(SvPVX(sv));
1571 I32 numtype = looks_like_number(sv);
1575 return strtoul(SvPVX(sv), Null(char**), 10);
1579 if (ckWARN(WARN_NUMERIC))
1582 SET_NUMERIC_STANDARD();
1583 return U_V(atof(SvPVX(sv)));
1587 looks_like_number(SV *sv)
1590 register char *send;
1591 register char *sbegin;
1599 else if (SvPOKp(sv))
1600 sbegin = SvPV(sv, len);
1603 send = sbegin + len;
1608 if (*s == '+' || *s == '-')
1611 /* next must be digit or '.' */
1615 } while (isDIGIT(*s));
1618 while (isDIGIT(*s)) /* optional digits after "." */
1622 else if (*s == '.') {
1624 /* no digits before '.' means we need digits after it */
1628 } while (isDIGIT(*s));
1637 * we return 1 if the number can be converted to _integer_ with atol()
1638 * and 2 if you need (int)atof().
1642 /* we can have an optional exponent part */
1643 if (*s == 'e' || *s == 'E') {
1646 if (*s == '+' || *s == '-')
1651 } while (isDIGIT(*s));
1660 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1666 sv_2pv(register SV *sv, STRLEN *lp)
1671 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1677 if (SvGMAGICAL(sv)) {
1684 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1689 SET_NUMERIC_STANDARD();
1690 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1695 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1697 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1698 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1704 if (SvTHINKFIRST(sv)) {
1708 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1709 return SvPV(tmpstr,*lp);
1710 #endif /* OVERLOAD */
1717 switch (SvTYPE(sv)) {
1719 if ( ((SvFLAGS(sv) &
1720 (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG))
1721 == (SVs_OBJECT|SVs_RMG))
1722 && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp")
1723 && (mg = mg_find(sv, 'r'))) {
1725 regexp *re = (regexp *)mg->mg_obj;
1728 char *fptr = "msix";
1733 U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12;
1735 while(ch = *fptr++) {
1737 reflags[left++] = ch;
1740 reflags[right--] = ch;
1745 reflags[left] = '-';
1749 mg->mg_len = re->prelen + 4 + left;
1750 New(616, mg->mg_ptr, mg->mg_len + 1 + left, char);
1751 Copy("(?", mg->mg_ptr, 2, char);
1752 Copy(reflags, mg->mg_ptr+2, left, char);
1753 Copy(":", mg->mg_ptr+left+2, 1, char);
1754 Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char);
1755 mg->mg_ptr[mg->mg_len - 1] = ')';
1756 mg->mg_ptr[mg->mg_len] = 0;
1758 PL_reginterp_cnt += re->program[0].next_off;
1770 case SVt_PVBM: s = "SCALAR"; break;
1771 case SVt_PVLV: s = "LVALUE"; break;
1772 case SVt_PVAV: s = "ARRAY"; break;
1773 case SVt_PVHV: s = "HASH"; break;
1774 case SVt_PVCV: s = "CODE"; break;
1775 case SVt_PVGV: s = "GLOB"; break;
1776 case SVt_PVFM: s = "FORMAT"; break;
1777 case SVt_PVIO: s = "IO"; break;
1778 default: s = "UNKNOWN"; break;
1782 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1785 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1791 if (SvREADONLY(sv)) {
1793 SET_NUMERIC_STANDARD();
1794 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1799 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1805 if (ckWARN(WARN_UNINITIALIZED))
1806 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1812 (void)SvUPGRADE(sv, SVt_PV);
1814 if (SvTYPE(sv) < SVt_PVNV)
1815 sv_upgrade(sv, SVt_PVNV);
1818 olderrno = errno; /* some Xenix systems wipe out errno here */
1820 if (SvNVX(sv) == 0.0)
1821 (void)strcpy(s,"0");
1825 SET_NUMERIC_STANDARD();
1826 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1829 #ifdef FIXNEGATIVEZERO
1830 if (*s == '-' && s[1] == '0' && !s[2])
1839 else if (SvIOKp(sv)) {
1840 U32 oldIOK = SvIOK(sv);
1841 if (SvTYPE(sv) < SVt_PVIV)
1842 sv_upgrade(sv, SVt_PVIV);
1843 olderrno = errno; /* some Xenix systems wipe out errno here */
1844 sv_setpviv(sv, SvIVX(sv));
1854 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1855 warner(WARN_UNINITIALIZED, PL_warn_uninit);
1859 *lp = s - SvPVX(sv);
1862 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1866 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1867 /* Sneaky stuff here */
1871 tsv = newSVpv(tmpbuf, 0);
1887 len = strlen(tmpbuf);
1889 #ifdef FIXNEGATIVEZERO
1890 if (len == 2 && t[0] == '-' && t[1] == '0') {
1895 (void)SvUPGRADE(sv, SVt_PV);
1897 s = SvGROW(sv, len + 1);
1905 /* This function is only called on magical items */
1907 sv_2bool(register SV *sv)
1919 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1920 return SvTRUE(tmpsv);
1922 #endif /* OVERLOAD */
1923 return SvRV(sv) != 0;
1926 register XPV* Xpvtmp;
1927 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1928 (*Xpvtmp->xpv_pv > '0' ||
1929 Xpvtmp->xpv_cur > 1 ||
1930 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1937 return SvIVX(sv) != 0;
1940 return SvNVX(sv) != 0.0;
1947 /* Note: sv_setsv() should not be called with a source string that needs
1948 * to be reused, since it may destroy the source string if it is marked
1953 sv_setsv(SV *dstr, register SV *sstr)
1956 register U32 sflags;
1962 SV_CHECK_THINKFIRST(dstr);
1964 sstr = &PL_sv_undef;
1965 stype = SvTYPE(sstr);
1966 dtype = SvTYPE(dstr);
1968 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1969 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1970 sv_setpvn(dstr, "", 0);
1971 (void)SvPOK_only(dstr);
1972 dtype = SvTYPE(dstr);
1977 #endif /* OVERLOAD */
1978 /* There's a lot of redundancy below but we're going for speed here */
1983 if (dtype != SVt_PVGV) {
1984 (void)SvOK_off(dstr);
1992 sv_upgrade(dstr, SVt_IV);
1995 sv_upgrade(dstr, SVt_PVNV);
1999 sv_upgrade(dstr, SVt_PVIV);
2002 (void)SvIOK_only(dstr);
2003 SvIVX(dstr) = SvIVX(sstr);
2014 sv_upgrade(dstr, SVt_NV);
2019 sv_upgrade(dstr, SVt_PVNV);
2022 SvNVX(dstr) = SvNVX(sstr);
2023 (void)SvNOK_only(dstr);
2031 sv_upgrade(dstr, SVt_RV);
2032 else if (dtype == SVt_PVGV &&
2033 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
2036 if (PL_curcop->cop_stash != GvSTASH(dstr))
2037 GvIMPORTED_on(dstr);
2047 sv_upgrade(dstr, SVt_PV);
2050 if (dtype < SVt_PVIV)
2051 sv_upgrade(dstr, SVt_PVIV);
2054 if (dtype < SVt_PVNV)
2055 sv_upgrade(dstr, SVt_PVNV);
2062 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
2063 PL_op_name[PL_op->op_type]);
2065 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
2069 if (dtype <= SVt_PVGV) {
2071 if (dtype != SVt_PVGV) {
2072 char *name = GvNAME(sstr);
2073 STRLEN len = GvNAMELEN(sstr);
2074 sv_upgrade(dstr, SVt_PVGV);
2075 sv_magic(dstr, dstr, '*', name, len);
2076 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
2077 GvNAME(dstr) = savepvn(name, len);
2078 GvNAMELEN(dstr) = len;
2079 SvFAKE_on(dstr); /* can coerce to non-glob */
2081 /* ahem, death to those who redefine active sort subs */
2082 else if (PL_curstackinfo->si_type == PERLSI_SORT
2083 && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr)))
2084 croak("Can't redefine active sort subroutine %s",
2086 (void)SvOK_off(dstr);
2087 GvINTRO_off(dstr); /* one-shot flag */
2089 GvGP(dstr) = gp_ref(GvGP(sstr));
2091 if (PL_curcop->cop_stash != GvSTASH(dstr))
2092 GvIMPORTED_on(dstr);
2099 if (SvGMAGICAL(sstr)) {
2101 if (SvTYPE(sstr) != stype) {
2102 stype = SvTYPE(sstr);
2103 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2107 if (stype == SVt_PVLV)
2108 SvUPGRADE(dstr, SVt_PVNV);
2110 SvUPGRADE(dstr, stype);
2113 sflags = SvFLAGS(sstr);
2115 if (sflags & SVf_ROK) {
2116 if (dtype >= SVt_PV) {
2117 if (dtype == SVt_PVGV) {
2118 SV *sref = SvREFCNT_inc(SvRV(sstr));
2120 int intro = GvINTRO(dstr);
2124 GvGP(dstr)->gp_refcnt--;
2125 GvINTRO_off(dstr); /* one-shot flag */
2126 Newz(602,gp, 1, GP);
2127 GvGP(dstr) = gp_ref(gp);
2128 GvSV(dstr) = NEWSV(72,0);
2129 GvLINE(dstr) = PL_curcop->cop_line;
2130 GvEGV(dstr) = (GV*)dstr;
2133 switch (SvTYPE(sref)) {
2136 SAVESPTR(GvAV(dstr));
2138 dref = (SV*)GvAV(dstr);
2139 GvAV(dstr) = (AV*)sref;
2140 if (PL_curcop->cop_stash != GvSTASH(dstr))
2141 GvIMPORTED_AV_on(dstr);
2145 SAVESPTR(GvHV(dstr));
2147 dref = (SV*)GvHV(dstr);
2148 GvHV(dstr) = (HV*)sref;
2149 if (PL_curcop->cop_stash != GvSTASH(dstr))
2150 GvIMPORTED_HV_on(dstr);
2154 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2155 SvREFCNT_dec(GvCV(dstr));
2156 GvCV(dstr) = Nullcv;
2157 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2158 PL_sub_generation++;
2160 SAVESPTR(GvCV(dstr));
2163 dref = (SV*)GvCV(dstr);
2164 if (GvCV(dstr) != (CV*)sref) {
2165 CV* cv = GvCV(dstr);
2167 if (!GvCVGEN((GV*)dstr) &&
2168 (CvROOT(cv) || CvXSUB(cv)))
2170 SV *const_sv = cv_const_sv(cv);
2171 bool const_changed = TRUE;
2173 const_changed = sv_cmp(const_sv,
2174 op_const_sv(CvSTART((CV*)sref),
2176 /* ahem, death to those who redefine
2177 * active sort subs */
2178 if (PL_curstackinfo->si_type == PERLSI_SORT &&
2179 PL_sortcop == CvSTART(cv))
2181 "Can't redefine active sort subroutine %s",
2182 GvENAME((GV*)dstr));
2183 if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) {
2184 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2185 && HvNAME(GvSTASH(CvGV(cv)))
2186 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2188 warner(WARN_REDEFINE, const_sv ?
2189 "Constant subroutine %s redefined"
2190 : "Subroutine %s redefined",
2191 GvENAME((GV*)dstr));
2194 cv_ckproto(cv, (GV*)dstr,
2195 SvPOK(sref) ? SvPVX(sref) : Nullch);
2197 GvCV(dstr) = (CV*)sref;
2198 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2199 GvASSUMECV_on(dstr);
2200 PL_sub_generation++;
2202 if (PL_curcop->cop_stash != GvSTASH(dstr))
2203 GvIMPORTED_CV_on(dstr);
2207 SAVESPTR(GvIOp(dstr));
2209 dref = (SV*)GvIOp(dstr);
2210 GvIOp(dstr) = (IO*)sref;
2214 SAVESPTR(GvSV(dstr));
2216 dref = (SV*)GvSV(dstr);
2218 if (PL_curcop->cop_stash != GvSTASH(dstr))
2219 GvIMPORTED_SV_on(dstr);
2230 (void)SvOOK_off(dstr); /* backoff */
2231 Safefree(SvPVX(dstr));
2232 SvLEN(dstr)=SvCUR(dstr)=0;
2235 (void)SvOK_off(dstr);
2236 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2238 if (sflags & SVp_NOK) {
2240 SvNVX(dstr) = SvNVX(sstr);
2242 if (sflags & SVp_IOK) {
2243 (void)SvIOK_on(dstr);
2244 SvIVX(dstr) = SvIVX(sstr);
2247 if (SvAMAGIC(sstr)) {
2250 #endif /* OVERLOAD */
2252 else if (sflags & SVp_POK) {
2255 * Check to see if we can just swipe the string. If so, it's a
2256 * possible small lose on short strings, but a big win on long ones.
2257 * It might even be a win on short strings if SvPVX(dstr)
2258 * has to be allocated and SvPVX(sstr) has to be freed.
2261 if (SvTEMP(sstr) && /* slated for free anyway? */
2262 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2263 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2265 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2267 SvFLAGS(dstr) &= ~SVf_OOK;
2268 Safefree(SvPVX(dstr) - SvIVX(dstr));
2271 Safefree(SvPVX(dstr));
2273 (void)SvPOK_only(dstr);
2274 SvPV_set(dstr, SvPVX(sstr));
2275 SvLEN_set(dstr, SvLEN(sstr));
2276 SvCUR_set(dstr, SvCUR(sstr));
2278 (void)SvOK_off(sstr);
2279 SvPV_set(sstr, Nullch);
2284 else { /* have to copy actual string */
2285 STRLEN len = SvCUR(sstr);
2287 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2288 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2289 SvCUR_set(dstr, len);
2290 *SvEND(dstr) = '\0';
2291 (void)SvPOK_only(dstr);
2294 if (sflags & SVp_NOK) {
2296 SvNVX(dstr) = SvNVX(sstr);
2298 if (sflags & SVp_IOK) {
2299 (void)SvIOK_on(dstr);
2300 SvIVX(dstr) = SvIVX(sstr);
2303 else if (sflags & SVp_NOK) {
2304 SvNVX(dstr) = SvNVX(sstr);
2305 (void)SvNOK_only(dstr);
2307 (void)SvIOK_on(dstr);
2308 SvIVX(dstr) = SvIVX(sstr);
2311 else if (sflags & SVp_IOK) {
2312 (void)SvIOK_only(dstr);
2313 SvIVX(dstr) = SvIVX(sstr);
2316 if (dtype == SVt_PVGV) {
2317 if (ckWARN(WARN_UNSAFE))
2318 warner(WARN_UNSAFE, "Undefined value assigned to typeglob");
2321 (void)SvOK_off(dstr);
2327 sv_setsv_mg(SV *dstr, register SV *sstr)
2329 sv_setsv(dstr,sstr);
2334 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2336 register char *dptr;
2337 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2338 elicit a warning, but it won't hurt. */
2339 SV_CHECK_THINKFIRST(sv);
2344 if (SvTYPE(sv) >= SVt_PV) {
2345 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2349 sv_upgrade(sv, SVt_PV);
2351 SvGROW(sv, len + 1);
2353 Move(ptr,dptr,len,char);
2356 (void)SvPOK_only(sv); /* validate pointer */
2361 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2363 sv_setpvn(sv,ptr,len);
2368 sv_setpv(register SV *sv, register const char *ptr)
2370 register STRLEN len;
2372 SV_CHECK_THINKFIRST(sv);
2378 if (SvTYPE(sv) >= SVt_PV) {
2379 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2383 sv_upgrade(sv, SVt_PV);
2385 SvGROW(sv, len + 1);
2386 Move(ptr,SvPVX(sv),len+1,char);
2388 (void)SvPOK_only(sv); /* validate pointer */
2393 sv_setpv_mg(register SV *sv, register const char *ptr)
2400 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2402 SV_CHECK_THINKFIRST(sv);
2403 (void)SvUPGRADE(sv, SVt_PV);
2408 (void)SvOOK_off(sv);
2410 Safefree(SvPVX(sv));
2411 Renew(ptr, len+1, char);
2414 SvLEN_set(sv, len+1);
2416 (void)SvPOK_only(sv); /* validate pointer */
2421 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2423 sv_usepvn(sv,ptr,len);
2428 sv_check_thinkfirst(register SV *sv)
2430 if (SvREADONLY(sv)) {
2432 if (PL_curcop != &PL_compiling)
2433 croak(PL_no_modify);
2440 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2444 register STRLEN delta;
2446 if (!ptr || !SvPOKp(sv))
2448 SV_CHECK_THINKFIRST(sv);
2449 if (SvTYPE(sv) < SVt_PVIV)
2450 sv_upgrade(sv,SVt_PVIV);
2454 SvFLAGS(sv) |= SVf_OOK;
2456 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2457 delta = ptr - SvPVX(sv);
2465 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2470 junk = SvPV_force(sv, tlen);
2471 SvGROW(sv, tlen + len + 1);
2474 Move(ptr,SvPVX(sv)+tlen,len,char);
2477 (void)SvPOK_only(sv); /* validate pointer */
2482 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2484 sv_catpvn(sv,ptr,len);
2489 sv_catsv(SV *dstr, register SV *sstr)
2495 if (s = SvPV(sstr, len))
2496 sv_catpvn(dstr,s,len);
2500 sv_catsv_mg(SV *dstr, register SV *sstr)
2502 sv_catsv(dstr,sstr);
2507 sv_catpv(register SV *sv, register char *ptr)
2509 register STRLEN len;
2515 junk = SvPV_force(sv, tlen);
2517 SvGROW(sv, tlen + len + 1);
2520 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2522 (void)SvPOK_only(sv); /* validate pointer */
2527 sv_catpv_mg(register SV *sv, register char *ptr)
2543 sv_upgrade(sv, SVt_PV);
2544 SvGROW(sv, len + 1);
2549 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2552 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2556 if (SvREADONLY(sv)) {
2558 if (PL_curcop != &PL_compiling && !strchr("gBf", how))
2559 croak(PL_no_modify);
2561 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2562 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2569 (void)SvUPGRADE(sv, SVt_PVMG);
2571 Newz(702,mg, 1, MAGIC);
2572 mg->mg_moremagic = SvMAGIC(sv);
2575 if (!obj || obj == sv || how == '#' || how == 'r')
2579 mg->mg_obj = SvREFCNT_inc(obj);
2580 mg->mg_flags |= MGf_REFCOUNTED;
2583 mg->mg_len = namlen;
2586 mg->mg_ptr = savepvn(name, namlen);
2587 else if (namlen == HEf_SVKEY)
2588 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2592 mg->mg_virtual = &PL_vtbl_sv;
2596 mg->mg_virtual = &PL_vtbl_amagic;
2599 mg->mg_virtual = &PL_vtbl_amagicelem;
2604 #endif /* OVERLOAD */
2606 mg->mg_virtual = &PL_vtbl_bm;
2609 mg->mg_virtual = &PL_vtbl_regdata;
2612 mg->mg_virtual = &PL_vtbl_regdatum;
2615 mg->mg_virtual = &PL_vtbl_env;
2618 mg->mg_virtual = &PL_vtbl_fm;
2621 mg->mg_virtual = &PL_vtbl_envelem;
2624 mg->mg_virtual = &PL_vtbl_mglob;
2627 mg->mg_virtual = &PL_vtbl_isa;
2630 mg->mg_virtual = &PL_vtbl_isaelem;
2633 mg->mg_virtual = &PL_vtbl_nkeys;
2640 mg->mg_virtual = &PL_vtbl_dbline;
2644 mg->mg_virtual = &PL_vtbl_mutex;
2646 #endif /* USE_THREADS */
2647 #ifdef USE_LOCALE_COLLATE
2649 mg->mg_virtual = &PL_vtbl_collxfrm;
2651 #endif /* USE_LOCALE_COLLATE */
2653 mg->mg_virtual = &PL_vtbl_pack;
2657 mg->mg_virtual = &PL_vtbl_packelem;
2660 mg->mg_virtual = &PL_vtbl_regexp;
2663 mg->mg_virtual = &PL_vtbl_sig;
2666 mg->mg_virtual = &PL_vtbl_sigelem;
2669 mg->mg_virtual = &PL_vtbl_taint;
2673 mg->mg_virtual = &PL_vtbl_uvar;
2676 mg->mg_virtual = &PL_vtbl_vec;
2679 mg->mg_virtual = &PL_vtbl_substr;
2682 mg->mg_virtual = &PL_vtbl_defelem;
2685 mg->mg_virtual = &PL_vtbl_glob;
2688 mg->mg_virtual = &PL_vtbl_arylen;
2691 mg->mg_virtual = &PL_vtbl_pos;
2693 case '~': /* Reserved for use by extensions not perl internals. */
2694 /* Useful for attaching extension internal data to perl vars. */
2695 /* Note that multiple extensions may clash if magical scalars */
2696 /* etc holding private data from one are passed to another. */
2700 croak("Don't know how to handle magic of type '%c'", how);
2704 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2708 sv_unmagic(SV *sv, int type)
2712 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2715 for (mg = *mgp; mg; mg = *mgp) {
2716 if (mg->mg_type == type) {
2717 MGVTBL* vtbl = mg->mg_virtual;
2718 *mgp = mg->mg_moremagic;
2719 if (vtbl && (vtbl->svt_free != NULL))
2720 (VTBL->svt_free)(sv, mg);
2721 if (mg->mg_ptr && mg->mg_type != 'g')
2722 if (mg->mg_len >= 0)
2723 Safefree(mg->mg_ptr);
2724 else if (mg->mg_len == HEf_SVKEY)
2725 SvREFCNT_dec((SV*)mg->mg_ptr);
2726 if (mg->mg_flags & MGf_REFCOUNTED)
2727 SvREFCNT_dec(mg->mg_obj);
2731 mgp = &mg->mg_moremagic;
2735 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2742 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2746 register char *midend;
2747 register char *bigend;
2753 croak("Can't modify non-existent substring");
2754 SvPV_force(bigstr, curlen);
2755 if (offset + len > curlen) {
2756 SvGROW(bigstr, offset+len+1);
2757 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
2758 SvCUR_set(bigstr, offset+len);
2761 i = littlelen - len;
2762 if (i > 0) { /* string might grow */
2763 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2764 mid = big + offset + len;
2765 midend = bigend = big + SvCUR(bigstr);
2768 while (midend > mid) /* shove everything down */
2769 *--bigend = *--midend;
2770 Move(little,big+offset,littlelen,char);
2776 Move(little,SvPVX(bigstr)+offset,len,char);
2781 big = SvPVX(bigstr);
2784 bigend = big + SvCUR(bigstr);
2786 if (midend > bigend)
2787 croak("panic: sv_insert");
2789 if (mid - big > bigend - midend) { /* faster to shorten from end */
2791 Move(little, mid, littlelen,char);
2794 i = bigend - midend;
2796 Move(midend, mid, i,char);
2800 SvCUR_set(bigstr, mid - big);
2803 else if (i = mid - big) { /* faster from front */
2804 midend -= littlelen;
2806 sv_chop(bigstr,midend-i);
2811 Move(little, mid, littlelen,char);
2813 else if (littlelen) {
2814 midend -= littlelen;
2815 sv_chop(bigstr,midend);
2816 Move(little,midend,littlelen,char);
2819 sv_chop(bigstr,midend);
2824 /* make sv point to what nstr did */
2827 sv_replace(register SV *sv, register SV *nsv)
2829 U32 refcnt = SvREFCNT(sv);
2830 SV_CHECK_THINKFIRST(sv);
2831 if (SvREFCNT(nsv) != 1)
2832 warn("Reference miscount in sv_replace()");
2833 if (SvMAGICAL(sv)) {
2837 sv_upgrade(nsv, SVt_PVMG);
2838 SvMAGIC(nsv) = SvMAGIC(sv);
2839 SvFLAGS(nsv) |= SvMAGICAL(sv);
2845 assert(!SvREFCNT(sv));
2846 StructCopy(nsv,sv,SV);
2847 SvREFCNT(sv) = refcnt;
2848 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2853 sv_clear(register SV *sv)
2857 assert(SvREFCNT(sv) == 0);
2861 if (PL_defstash) { /* Still have a symbol table? */
2866 Zero(&tmpref, 1, SV);
2867 sv_upgrade(&tmpref, SVt_RV);
2869 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2870 SvREFCNT(&tmpref) = 1;
2873 stash = SvSTASH(sv);
2874 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2877 PUSHSTACKi(PERLSI_DESTROY);
2878 SvRV(&tmpref) = SvREFCNT_inc(sv);
2883 perl_call_sv((SV*)GvCV(destructor),
2884 G_DISCARD|G_EVAL|G_KEEPERR);
2890 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2892 del_XRV(SvANY(&tmpref));
2896 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2897 SvOBJECT_off(sv); /* Curse the object. */
2898 if (SvTYPE(sv) != SVt_PVIO)
2899 --PL_sv_objcount; /* XXX Might want something more general */
2902 if (PL_in_clean_objs)
2903 croak("DESTROY created new reference to dead object");
2904 /* DESTROY gave object new lease on life */
2908 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2911 switch (SvTYPE(sv)) {
2914 IoIFP(sv) != PerlIO_stdin() &&
2915 IoIFP(sv) != PerlIO_stdout() &&
2916 IoIFP(sv) != PerlIO_stderr())
2918 Safefree(IoTOP_NAME(sv));
2919 Safefree(IoFMT_NAME(sv));
2920 Safefree(IoBOTTOM_NAME(sv));
2935 SvREFCNT_dec(LvTARG(sv));
2939 Safefree(GvNAME(sv));
2940 /* cannot decrease stash refcount yet, as we might recursively delete
2941 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2942 of stash until current sv is completely gone.
2943 -- JohnPC, 27 Mar 1998 */
2944 stash = GvSTASH(sv);
2950 (void)SvOOK_off(sv);
2955 SvREFCNT_dec(SvRV(sv));
2956 else if (SvPVX(sv) && SvLEN(sv))
2957 Safefree(SvPVX(sv));
2967 switch (SvTYPE(sv)) {
2983 del_XPVIV(SvANY(sv));
2986 del_XPVNV(SvANY(sv));
2989 del_XPVMG(SvANY(sv));
2992 del_XPVLV(SvANY(sv));
2995 del_XPVAV(SvANY(sv));
2998 del_XPVHV(SvANY(sv));
3001 del_XPVCV(SvANY(sv));
3004 del_XPVGV(SvANY(sv));
3005 /* code duplication for increased performance. */
3006 SvFLAGS(sv) &= SVf_BREAK;
3007 SvFLAGS(sv) |= SVTYPEMASK;
3008 /* decrease refcount of the stash that owns this GV, if any */
3010 SvREFCNT_dec(stash);
3011 return; /* not break, SvFLAGS reset already happened */
3013 del_XPVBM(SvANY(sv));
3016 del_XPVFM(SvANY(sv));
3019 del_XPVIO(SvANY(sv));
3022 SvFLAGS(sv) &= SVf_BREAK;
3023 SvFLAGS(sv) |= SVTYPEMASK;
3030 ATOMIC_INC(SvREFCNT(sv));
3037 int refcount_is_zero;
3041 if (SvREFCNT(sv) == 0) {
3042 if (SvFLAGS(sv) & SVf_BREAK)
3044 if (PL_in_clean_all) /* All is fair */
3046 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3047 /* make sure SvREFCNT(sv)==0 happens very seldom */
3048 SvREFCNT(sv) = (~(U32)0)/2;
3051 warn("Attempt to free unreferenced scalar");
3054 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
3055 if (!refcount_is_zero)
3059 warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv);
3063 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3064 /* make sure SvREFCNT(sv)==0 happens very seldom */
3065 SvREFCNT(sv) = (~(U32)0)/2;
3074 sv_len(register SV *sv)
3083 len = mg_length(sv);
3085 junk = SvPV(sv, len);
3090 sv_len_utf8(register SV *sv)
3101 len = mg_length(sv);
3104 s = (U8*)SvPV(sv, len);
3115 sv_pos_u2b(register SV *sv, I32* offsetp, I32* lenp)
3120 I32 uoffset = *offsetp;
3126 start = s = (U8*)SvPV(sv, len);
3128 while (s < send && uoffset--)
3132 *offsetp = s - start;
3136 while (s < send && ulen--)
3146 sv_pos_b2u(register SV *sv, I32* offsetp)
3155 s = (U8*)SvPV(sv, len);
3157 croak("panic: bad byte offset");
3158 send = s + *offsetp;
3165 warn("Malformed UTF-8 character");
3173 sv_eq(register SV *str1, register SV *str2)
3185 pv1 = SvPV(str1, cur1);
3190 pv2 = SvPV(str2, cur2);
3195 return memEQ(pv1, pv2, cur1);
3199 sv_cmp(register SV *str1, register SV *str2)
3202 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
3204 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3208 return cur2 ? -1 : 0;
3213 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3216 return retval < 0 ? -1 : 1;
3221 return cur1 < cur2 ? -1 : 1;
3225 sv_cmp_locale(register SV *sv1, register SV *sv2)
3227 #ifdef USE_LOCALE_COLLATE
3233 if (PL_collation_standard)
3237 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3239 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3241 if (!pv1 || !len1) {
3252 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3255 return retval < 0 ? -1 : 1;
3258 * When the result of collation is equality, that doesn't mean
3259 * that there are no differences -- some locales exclude some
3260 * characters from consideration. So to avoid false equalities,
3261 * we use the raw string as a tiebreaker.
3267 #endif /* USE_LOCALE_COLLATE */
3269 return sv_cmp(sv1, sv2);
3272 #ifdef USE_LOCALE_COLLATE
3274 * Any scalar variable may carry an 'o' magic that contains the
3275 * scalar data of the variable transformed to such a format that
3276 * a normal memory comparison can be used to compare the data
3277 * according to the locale settings.
3280 sv_collxfrm(SV *sv, STRLEN *nxp)
3284 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3285 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) {
3290 Safefree(mg->mg_ptr);
3292 if ((xf = mem_collxfrm(s, len, &xlen))) {
3293 if (SvREADONLY(sv)) {
3296 return xf + sizeof(PL_collation_ix);
3299 sv_magic(sv, 0, 'o', 0, 0);
3300 mg = mg_find(sv, 'o');
3313 if (mg && mg->mg_ptr) {
3315 return mg->mg_ptr + sizeof(PL_collation_ix);
3323 #endif /* USE_LOCALE_COLLATE */
3326 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3331 register STDCHAR rslast;
3332 register STDCHAR *bp;
3336 SV_CHECK_THINKFIRST(sv);
3337 (void)SvUPGRADE(sv, SVt_PV);
3340 if (RsSNARF(PL_rs)) {
3344 else if (RsRECORD(PL_rs)) {
3345 I32 recsize, bytesread;
3348 /* Grab the size of the record we're getting */
3349 recsize = SvIV(SvRV(PL_rs));
3350 (void)SvPOK_only(sv); /* Validate pointer */
3351 buffer = SvGROW(sv, recsize + 1);
3354 /* VMS wants read instead of fread, because fread doesn't respect */
3355 /* RMS record boundaries. This is not necessarily a good thing to be */
3356 /* doing, but we've got no other real choice */
3357 bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize);
3359 bytesread = PerlIO_read(fp, buffer, recsize);
3361 SvCUR_set(sv, bytesread);
3362 buffer[bytesread] = '\0';
3363 return(SvCUR(sv) ? SvPVX(sv) : Nullch);
3365 else if (RsPARA(PL_rs)) {
3370 rsptr = SvPV(PL_rs, rslen);
3371 rslast = rslen ? rsptr[rslen - 1] : '\0';
3373 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3374 do { /* to make sure file boundaries work right */
3377 i = PerlIO_getc(fp);
3381 PerlIO_ungetc(fp,i);
3387 /* See if we know enough about I/O mechanism to cheat it ! */
3389 /* This used to be #ifdef test - it is made run-time test for ease
3390 of abstracting out stdio interface. One call should be cheap
3391 enough here - and may even be a macro allowing compile
3395 if (PerlIO_fast_gets(fp)) {
3398 * We're going to steal some values from the stdio struct
3399 * and put EVERYTHING in the innermost loop into registers.
3401 register STDCHAR *ptr;
3405 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3406 /* An ungetc()d char is handled separately from the regular
3407 * buffer, so we getc() it back out and stuff it in the buffer.
3409 i = PerlIO_getc(fp);
3410 if (i == EOF) return 0;
3411 *(--((*fp)->_ptr)) = (unsigned char) i;
3415 /* Here is some breathtakingly efficient cheating */
3417 cnt = PerlIO_get_cnt(fp); /* get count into register */
3418 (void)SvPOK_only(sv); /* validate pointer */
3419 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3420 if (cnt > 80 && SvLEN(sv) > append) {
3421 shortbuffered = cnt - SvLEN(sv) + append + 1;
3422 cnt -= shortbuffered;
3426 /* remember that cnt can be negative */
3427 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3432 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3433 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3434 DEBUG_P(PerlIO_printf(Perl_debug_log,
3435 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3436 DEBUG_P(PerlIO_printf(Perl_debug_log,
3437 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3438 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3439 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3444 while (cnt > 0) { /* this | eat */
3446 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3447 goto thats_all_folks; /* screams | sed :-) */
3451 Copy(ptr, bp, cnt, char); /* this | eat */
3452 bp += cnt; /* screams | dust */
3453 ptr += cnt; /* louder | sed :-) */
3458 if (shortbuffered) { /* oh well, must extend */
3459 cnt = shortbuffered;
3461 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3463 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3464 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3468 DEBUG_P(PerlIO_printf(Perl_debug_log,
3469 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3470 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3471 DEBUG_P(PerlIO_printf(Perl_debug_log,
3472 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3473 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3474 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3475 /* This used to call 'filbuf' in stdio form, but as that behaves like
3476 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3477 another abstraction. */
3478 i = PerlIO_getc(fp); /* get more characters */
3479 DEBUG_P(PerlIO_printf(Perl_debug_log,
3480 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3481 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3482 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3483 cnt = PerlIO_get_cnt(fp);
3484 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3485 DEBUG_P(PerlIO_printf(Perl_debug_log,
3486 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3488 if (i == EOF) /* all done for ever? */
3489 goto thats_really_all_folks;
3491 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3493 SvGROW(sv, bpx + cnt + 2);
3494 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3496 *bp++ = i; /* store character from PerlIO_getc */
3498 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3499 goto thats_all_folks;
3503 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3504 memNE((char*)bp - rslen, rsptr, rslen))
3505 goto screamer; /* go back to the fray */
3506 thats_really_all_folks:
3508 cnt += shortbuffered;
3509 DEBUG_P(PerlIO_printf(Perl_debug_log,
3510 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3511 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3512 DEBUG_P(PerlIO_printf(Perl_debug_log,
3513 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3514 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3515 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3517 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3518 DEBUG_P(PerlIO_printf(Perl_debug_log,
3519 "Screamer: done, len=%ld, string=|%.*s|\n",
3520 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3524 /*The big, slow, and stupid way */
3529 register STDCHAR *bpe = buf + sizeof(buf);
3531 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3532 ; /* keep reading */
3536 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3537 /* Accomodate broken VAXC compiler, which applies U8 cast to
3538 * both args of ?: operator, causing EOF to change into 255
3540 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3544 sv_catpvn(sv, (char *) buf, cnt);
3546 sv_setpvn(sv, (char *) buf, cnt);
3548 if (i != EOF && /* joy */
3550 SvCUR(sv) < rslen ||
3551 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3555 * If we're reading from a TTY and we get a short read,
3556 * indicating that the user hit his EOF character, we need
3557 * to notice it now, because if we try to read from the TTY
3558 * again, the EOF condition will disappear.
3560 * The comparison of cnt to sizeof(buf) is an optimization
3561 * that prevents unnecessary calls to feof().
3565 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3570 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3571 while (i != EOF) { /* to make sure file boundaries work right */
3572 i = PerlIO_getc(fp);
3574 PerlIO_ungetc(fp,i);
3581 win32_strip_return(sv);
3584 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3589 sv_inc(register SV *sv)
3598 if (SvTHINKFIRST(sv)) {
3599 if (SvREADONLY(sv)) {
3601 if (PL_curcop != &PL_compiling)
3602 croak(PL_no_modify);
3607 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3608 #endif /* OVERLOAD */
3614 flags = SvFLAGS(sv);
3615 if (flags & SVp_NOK) {
3616 (void)SvNOK_only(sv);
3620 if (flags & SVp_IOK) {
3621 if (SvIVX(sv) == IV_MAX)
3622 sv_setnv(sv, (double)IV_MAX + 1.0);
3624 (void)SvIOK_only(sv);
3629 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3630 if ((flags & SVTYPEMASK) < SVt_PVNV)
3631 sv_upgrade(sv, SVt_NV);
3633 (void)SvNOK_only(sv);
3637 while (isALPHA(*d)) d++;
3638 while (isDIGIT(*d)) d++;
3640 SET_NUMERIC_STANDARD();
3641 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3645 while (d >= SvPVX(sv)) {
3653 /* MKS: The original code here died if letters weren't consecutive.
3654 * at least it didn't have to worry about non-C locales. The
3655 * new code assumes that ('z'-'a')==('Z'-'A'), letters are
3656 * arranged in order (although not consecutively) and that only
3657 * [A-Za-z] are accepted by isALPHA in the C locale.
3659 if (*d != 'z' && *d != 'Z') {
3660 do { ++*d; } while (!isALPHA(*d));
3663 *(d--) -= 'z' - 'a';
3668 *(d--) -= 'z' - 'a' + 1;
3672 /* oh,oh, the number grew */
3673 SvGROW(sv, SvCUR(sv) + 2);
3675 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3684 sv_dec(register SV *sv)
3692 if (SvTHINKFIRST(sv)) {
3693 if (SvREADONLY(sv)) {
3695 if (PL_curcop != &PL_compiling)
3696 croak(PL_no_modify);
3701 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3702 #endif /* OVERLOAD */
3708 flags = SvFLAGS(sv);
3709 if (flags & SVp_NOK) {
3711 (void)SvNOK_only(sv);
3714 if (flags & SVp_IOK) {
3715 if (SvIVX(sv) == IV_MIN)
3716 sv_setnv(sv, (double)IV_MIN - 1.0);
3718 (void)SvIOK_only(sv);
3723 if (!(flags & SVp_POK)) {
3724 if ((flags & SVTYPEMASK) < SVt_PVNV)
3725 sv_upgrade(sv, SVt_NV);
3727 (void)SvNOK_only(sv);
3730 SET_NUMERIC_STANDARD();
3731 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3734 /* Make a string that will exist for the duration of the expression
3735 * evaluation. Actually, it may have to last longer than that, but
3736 * hopefully we won't free it until it has been assigned to a
3737 * permanent location. */
3743 PL_tmps_max += (PL_tmps_max < 512) ? 128 : 512;
3744 Renew(PL_tmps_stack, PL_tmps_max, SV*);
3748 sv_mortalcopy(SV *oldstr)
3757 sv_setsv(sv,oldstr);
3758 if (++PL_tmps_ix >= PL_tmps_max)
3760 PL_tmps_stack[PL_tmps_ix] = sv;
3774 SvFLAGS(sv) = SVs_TEMP;
3775 if (++PL_tmps_ix >= PL_tmps_max)
3777 PL_tmps_stack[PL_tmps_ix] = sv;
3781 /* same thing without the copying */
3784 sv_2mortal(register SV *sv)
3789 if (SvREADONLY(sv) && SvIMMORTAL(sv))
3791 if (++PL_tmps_ix >= PL_tmps_max)
3793 PL_tmps_stack[PL_tmps_ix] = sv;
3799 newSVpv(char *s, STRLEN len)
3809 sv_setpvn(sv,s,len);
3814 newSVpvn(char *s, STRLEN len)
3822 sv_setpvn(sv,s,len);
3827 newSVpvf(const char* pat, ...)
3836 va_start(args, pat);
3837 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3870 newRV_noinc(SV *tmpRef)
3879 sv_upgrade(sv, SVt_RV);
3889 return newRV_noinc(SvREFCNT_inc(tmpRef));
3892 /* make an exact duplicate of old */
3895 newSVsv(register SV *old)
3901 if (SvTYPE(old) == SVTYPEMASK) {
3902 warn("semi-panic: attempt to dup freed string");
3920 sv_reset(register char *s, HV *stash)
3933 if (!*s) { /* reset ?? searches */
3934 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3935 pm->op_pmdynflags &= ~PMdf_USED;
3940 /* reset variables */
3942 if (!HvARRAY(stash))
3945 Zero(todo, 256, char);
3952 for ( ; i <= max; i++) {
3955 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3956 for (entry = HvARRAY(stash)[i];
3958 entry = HeNEXT(entry))
3960 if (!todo[(U8)*HeKEY(entry)])
3962 gv = (GV*)HeVAL(entry);
3964 if (SvTHINKFIRST(sv)) {
3965 if (!SvREADONLY(sv) && SvROK(sv))
3970 if (SvTYPE(sv) >= SVt_PV) {
3972 if (SvPVX(sv) != Nullch)
3979 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3981 #ifndef VMS /* VMS has no environ array */
3983 environ[0] = Nullch;
3997 switch (SvTYPE(sv)) {
4005 croak("Bad filehandle: %s", GvNAME(gv));
4009 croak(PL_no_usym, "filehandle");
4011 return sv_2io(SvRV(sv));
4012 gv = gv_fetchpv(SvPV(sv,PL_na), FALSE, SVt_PVIO);
4018 croak("Bad filehandle: %s", SvPV(sv,PL_na));
4025 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
4031 return *gvp = Nullgv, Nullcv;
4032 switch (SvTYPE(sv)) {
4052 SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */
4053 tryAMAGICunDEREF(to_cv);
4056 if (SvTYPE(cv) != SVt_PVCV)
4057 croak("Not a subroutine reference");
4065 gv = gv_fetchpv(SvPV(sv, PL_na), lref, SVt_PVCV);
4071 if (lref && !GvCVu(gv)) {
4074 tmpsv = NEWSV(704,0);
4075 gv_efullname3(tmpsv, gv, Nullch);
4076 newSUB(start_subparse(FALSE, 0),
4077 newSVOP(OP_CONST, 0, tmpsv),
4082 croak("Unable to create sub named \"%s\"", SvPV(sv,PL_na));
4089 sv_true(register SV *sv)
4096 if ((tXpv = (XPV*)SvANY(sv)) &&
4097 (*tXpv->xpv_pv > '0' ||
4098 tXpv->xpv_cur > 1 ||
4099 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
4106 return SvIVX(sv) != 0;
4109 return SvNVX(sv) != 0.0;
4111 return sv_2bool(sv);
4117 sv_iv(register SV *sv)
4125 sv_uv(register SV *sv)
4133 sv_nv(register SV *sv)
4141 sv_pvn(SV *sv, STRLEN *lp)
4147 return sv_2pv(sv, lp);
4151 sv_pvn_force(SV *sv, STRLEN *lp)
4155 if (SvREADONLY(sv)) {
4157 if (PL_curcop != &PL_compiling)
4158 croak(PL_no_modify);
4165 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
4166 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
4173 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
4174 PL_op_name[PL_op->op_type]);
4179 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
4184 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
4185 SvGROW(sv, len + 1);
4186 Move(s,SvPVX(sv),len,char);
4191 SvPOK_on(sv); /* validate pointer */
4193 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
4194 (unsigned long)sv,SvPVX(sv)));
4201 sv_reftype(SV *sv, int ob)
4203 if (ob && SvOBJECT(sv))
4204 return HvNAME(SvSTASH(sv));
4206 switch (SvTYPE(sv)) {
4220 case SVt_PVLV: return "LVALUE";
4221 case SVt_PVAV: return "ARRAY";
4222 case SVt_PVHV: return "HASH";
4223 case SVt_PVCV: return "CODE";
4224 case SVt_PVGV: return "GLOB";
4225 case SVt_PVFM: return "FORMAT";
4226 default: return "UNKNOWN";
4247 sv_isa(SV *sv, char *name)
4259 return strEQ(HvNAME(SvSTASH(sv)), name);
4263 newSVrv(SV *rv, char *classname)
4273 SV_CHECK_THINKFIRST(rv);
4276 #endif /* OVERLOAD */
4278 if (SvTYPE(rv) < SVt_RV)
4279 sv_upgrade(rv, SVt_RV);
4282 SvRV(rv) = SvREFCNT_inc(sv);
4286 HV* stash = gv_stashpv(classname, TRUE);
4287 (void)sv_bless(rv, stash);
4293 sv_setref_pv(SV *rv, char *classname, void *pv)
4296 sv_setsv(rv, &PL_sv_undef);
4300 sv_setiv(newSVrv(rv,classname), (IV)pv);
4305 sv_setref_iv(SV *rv, char *classname, IV iv)
4307 sv_setiv(newSVrv(rv,classname), iv);
4312 sv_setref_nv(SV *rv, char *classname, double nv)
4314 sv_setnv(newSVrv(rv,classname), nv);
4319 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4321 sv_setpvn(newSVrv(rv,classname), pv, n);
4326 sv_bless(SV *sv, HV *stash)
4331 croak("Can't bless non-reference value");
4333 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4334 if (SvREADONLY(tmpRef))
4335 croak(PL_no_modify);
4336 if (SvOBJECT(tmpRef)) {
4337 if (SvTYPE(tmpRef) != SVt_PVIO)
4339 SvREFCNT_dec(SvSTASH(tmpRef));
4342 SvOBJECT_on(tmpRef);
4343 if (SvTYPE(tmpRef) != SVt_PVIO)
4345 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4346 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4353 #endif /* OVERLOAD */
4361 assert(SvTYPE(sv) == SVt_PVGV);
4366 SvREFCNT_dec(GvSTASH(sv));
4367 GvSTASH(sv) = Nullhv;
4369 sv_unmagic(sv, '*');
4370 Safefree(GvNAME(sv));
4372 SvFLAGS(sv) &= ~SVTYPEMASK;
4373 SvFLAGS(sv) |= SVt_PVMG;
4383 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4386 sv_2mortal(rv); /* Schedule for freeing later */
4392 sv_magic((sv), Nullsv, 't', Nullch, 0);
4398 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4399 MAGIC *mg = mg_find(sv, 't');
4408 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4409 MAGIC *mg = mg_find(sv, 't');
4410 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4417 sv_setpviv(SV *sv, IV iv)
4420 char buf[TYPE_DIGITS(UV)];
4421 char *ptr = buf + sizeof(buf);
4426 sv_setpvn(sv, "", 0);
4435 *--ptr = '0' + (uv % 10);
4437 len = (buf + sizeof(buf)) - ptr;
4438 /* taking advantage of SvCUR(sv) == 0 */
4439 SvGROW(sv, sign + len + 1);
4443 memcpy(p, ptr, len);
4446 SvCUR(sv) = p - SvPVX(sv);
4451 sv_setpviv_mg(SV *sv, IV iv)
4458 sv_setpvf(SV *sv, const char* pat, ...)
4461 va_start(args, pat);
4462 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4468 sv_setpvf_mg(SV *sv, const char* pat, ...)
4471 va_start(args, pat);
4472 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4478 sv_catpvf(SV *sv, const char* pat, ...)
4481 va_start(args, pat);
4482 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4487 sv_catpvf_mg(SV *sv, const char* pat, ...)
4490 va_start(args, pat);
4491 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4497 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4499 sv_setpvn(sv, "", 0);
4500 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4504 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4512 static char nullstr[] = "(null)";
4514 /* no matter what, this is a string now */
4515 (void)SvPV_force(sv, origlen);
4517 /* special-case "", "%s", and "%_" */
4520 if (patlen == 2 && pat[0] == '%') {
4524 char *s = va_arg(*args, char*);
4525 sv_catpv(sv, s ? s : nullstr);
4527 else if (svix < svmax)
4528 sv_catsv(sv, *svargs);
4532 sv_catsv(sv, va_arg(*args, SV*));
4535 /* See comment on '_' below */
4540 patend = (char*)pat + patlen;
4541 for (p = (char*)pat; p < patend; p = q) {
4549 bool has_precis = FALSE;
4554 STRLEN esignlen = 0;
4556 char *eptr = Nullch;
4558 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4560 static char *efloatbuf = Nullch;
4561 static STRLEN efloatsize = 0;
4573 for (q = p; q < patend && *q != '%'; ++q) ;
4575 sv_catpvn(sv, p, q - p);
4613 case '1': case '2': case '3':
4614 case '4': case '5': case '6':
4615 case '7': case '8': case '9':
4618 width = width * 10 + (*q++ - '0');
4623 i = va_arg(*args, int);
4625 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4627 width = (i < 0) ? -i : i;
4638 i = va_arg(*args, int);
4640 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4641 precis = (i < 0) ? 0 : i;
4647 precis = precis * 10 + (*q++ - '0');
4656 #if 0 /* when quads have better support within Perl */
4657 if (*(q + 1) == 'l') {
4684 uv = va_arg(*args, int);
4686 uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4688 eptr = (char*)utf8buf;
4689 elen = uv_to_utf8((U8*)eptr, uv) - utf8buf;
4693 c = va_arg(*args, int);
4695 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4702 eptr = va_arg(*args, char*);
4704 elen = strlen(eptr);
4707 elen = sizeof nullstr - 1;
4710 else if (svix < svmax) {
4711 eptr = SvPVx(svargs[svix++], elen);
4713 if (has_precis && precis < elen) {
4715 sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */
4718 if (width) { /* fudge width (can't fudge elen) */
4719 width += elen - sv_len_utf8(svargs[svix - 1]);
4727 * The "%_" hack might have to be changed someday,
4728 * if ISO or ANSI decide to use '_' for something.
4729 * So we keep it hidden from users' code.
4733 eptr = SvPVx(va_arg(*args, SV*), elen);
4736 if (has_precis && elen > precis)
4744 uv = (UV)va_arg(*args, void*);
4746 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4757 case 'h': iv = (short)va_arg(*args, int); break;
4758 default: iv = va_arg(*args, int); break;
4759 case 'l': iv = va_arg(*args, long); break;
4760 case 'V': iv = va_arg(*args, IV); break;
4764 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4766 case 'h': iv = (short)iv; break;
4767 default: iv = (int)iv; break;
4768 case 'l': iv = (long)iv; break;
4775 esignbuf[esignlen++] = plus;
4779 esignbuf[esignlen++] = '-';
4805 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4806 default: uv = va_arg(*args, unsigned); break;
4807 case 'l': uv = va_arg(*args, unsigned long); break;
4808 case 'V': uv = va_arg(*args, UV); break;
4812 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4814 case 'h': uv = (unsigned short)uv; break;
4815 default: uv = (unsigned)uv; break;
4816 case 'l': uv = (unsigned long)uv; break;
4822 eptr = ebuf + sizeof ebuf;
4828 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4834 esignbuf[esignlen++] = '0';
4835 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4841 *--eptr = '0' + dig;
4843 if (alt && *eptr != '0')
4846 default: /* it had better be ten or less */
4849 *--eptr = '0' + dig;
4850 } while (uv /= base);
4853 elen = (ebuf + sizeof ebuf) - eptr;
4856 zeros = precis - elen;
4857 else if (precis == 0 && elen == 1 && *eptr == '0')
4862 /* FLOATING POINT */
4865 c = 'f'; /* maybe %F isn't supported here */
4871 /* This is evil, but floating point is even more evil */
4874 nv = va_arg(*args, double);
4876 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4879 if (c != 'e' && c != 'E') {
4881 (void)frexp(nv, &i);
4882 if (i == PERL_INT_MIN)
4883 die("panic: frexp");
4885 need = BIT_DIGITS(i);
4887 need += has_precis ? precis : 6; /* known default */
4891 need += 20; /* fudge factor */
4892 if (efloatsize < need) {
4893 Safefree(efloatbuf);
4894 efloatsize = need + 20; /* more fudge */
4895 New(906, efloatbuf, efloatsize, char);
4898 eptr = ebuf + sizeof ebuf;
4903 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4908 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4920 (void)sprintf(efloatbuf, eptr, nv);
4923 elen = strlen(efloatbuf);
4927 * User-defined locales may include arbitrary characters.
4928 * And, unfortunately, some system may alloc the "C" locale
4929 * to be overridden by a malicious user.
4932 *used_locale = TRUE;
4933 #endif /* LC_NUMERIC */
4940 i = SvCUR(sv) - origlen;
4943 case 'h': *(va_arg(*args, short*)) = i; break;
4944 default: *(va_arg(*args, int*)) = i; break;
4945 case 'l': *(va_arg(*args, long*)) = i; break;
4946 case 'V': *(va_arg(*args, IV*)) = i; break;
4949 else if (svix < svmax)
4950 sv_setuv(svargs[svix++], (UV)i);
4951 continue; /* not "break" */
4957 if (!args && ckWARN(WARN_PRINTF) &&
4958 (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) {
4959 SV *msg = sv_newmortal();
4960 sv_setpvf(msg, "Invalid conversion in %s: ",
4961 (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf");
4963 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4966 sv_catpv(msg, "end of string");
4967 warner(WARN_PRINTF, "%_", msg); /* yes, this is reentrant */
4970 /* output mangled stuff ... */
4976 /* ... right here, because formatting flags should not apply */
4977 SvGROW(sv, SvCUR(sv) + elen + 1);
4979 memcpy(p, eptr, elen);
4982 SvCUR(sv) = p - SvPVX(sv);
4983 continue; /* not "break" */
4986 have = esignlen + zeros + elen;
4987 need = (have > width ? have : width);
4990 SvGROW(sv, SvCUR(sv) + need + 1);
4992 if (esignlen && fill == '0') {
4993 for (i = 0; i < esignlen; i++)
4997 memset(p, fill, gap);
5000 if (esignlen && fill != '0') {
5001 for (i = 0; i < esignlen; i++)
5005 for (i = zeros; i; i--)
5009 memcpy(p, eptr, elen);
5013 memset(p, ' ', gap);
5017 SvCUR(sv) = p - SvPVX(sv);
5025 SV *d = sv_newmortal();
5031 PerlIO_printf(Perl_debug_log, "SV = 0\n");
5035 flags = SvFLAGS(sv);
5038 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
5039 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
5040 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
5041 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
5042 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
5043 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
5044 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
5045 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
5046 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
5047 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
5049 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
5050 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
5051 if (flags & SVf_POK) sv_catpv(d, "POK,");
5052 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
5053 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
5054 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
5055 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
5058 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
5059 #endif /* OVERLOAD */
5060 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
5061 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
5062 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
5063 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
5068 if (CvANON(sv)) sv_catpv(d, "ANON,");
5069 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
5070 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
5071 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
5072 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
5075 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
5076 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
5079 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
5080 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
5081 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
5082 if (GvIMPORTED(sv)) {
5083 sv_catpv(d, "IMPORT");
5084 if (GvIMPORTED(sv) == GVf_IMPORTED)
5085 sv_catpv(d, "ALL,");
5088 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
5089 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
5090 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
5091 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
5096 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
5097 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
5101 if (*(SvEND(d) - 1) == ',')
5102 SvPVX(d)[--SvCUR(d)] = '\0';
5106 PerlIO_printf(Perl_debug_log, "SV = ");
5109 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
5112 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
5115 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
5118 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
5121 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
5124 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
5127 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
5130 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
5133 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
5136 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
5139 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
5142 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
5145 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
5148 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
5151 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
5154 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
5157 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
5160 if (type >= SVt_PVIV || type == SVt_IV)
5161 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
5162 if (type >= SVt_PVNV || type == SVt_NV) {
5163 SET_NUMERIC_STANDARD();
5164 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
5167 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
5173 if (type <= SVt_PVLV) {
5175 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
5176 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
5178 PerlIO_printf(Perl_debug_log, " PV = 0\n");
5180 if (type >= SVt_PVMG) {
5182 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
5185 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
5189 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
5190 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
5191 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
5192 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
5193 sv_dump(LvTARG(sv));
5196 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
5197 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
5198 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
5199 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
5200 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
5201 flags = AvFLAGS(sv);
5203 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
5204 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
5205 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
5206 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
5207 SvCUR(d) ? SvPVX(d) + 1 : "");
5210 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
5211 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
5212 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
5213 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
5214 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
5215 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5217 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5219 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5223 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,PL_na));
5226 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5227 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5228 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5229 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5230 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5231 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5232 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5233 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5235 PerlIO_printf(Perl_debug_log, "\n");
5237 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5238 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5239 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5240 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5242 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5243 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5244 #endif /* USE_THREADS */
5245 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5246 (unsigned long)CvFLAGS(sv));
5247 if (type == SVt_PVFM)
5248 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5251 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5252 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5253 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5254 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5255 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5256 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5257 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5258 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5259 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5260 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5261 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5262 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5263 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5264 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5265 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5266 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5267 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5270 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5271 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5272 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5273 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5274 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5275 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5276 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5277 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5278 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5279 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5280 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5281 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5282 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5283 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5284 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5285 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
5288 #endif /* DEBUGGING */