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;
1092 sv_grow(register SV *sv, register I32 newlen)
1094 sv_grow(SV* sv, unsigned long newlen)
1099 #ifdef HAS_64K_LIMIT
1100 if (newlen >= 0x10000) {
1101 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1104 #endif /* HAS_64K_LIMIT */
1107 if (SvTYPE(sv) < SVt_PV) {
1108 sv_upgrade(sv, SVt_PV);
1111 else if (SvOOK(sv)) { /* pv is offset? */
1114 if (newlen > SvLEN(sv))
1115 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1116 #ifdef HAS_64K_LIMIT
1117 if (newlen >= 0x10000)
1123 if (newlen > SvLEN(sv)) { /* need more room? */
1124 if (SvLEN(sv) && s) {
1125 #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
1126 STRLEN l = malloced_size((void*)SvPVX(sv));
1132 Renew(s,newlen,char);
1135 New(703,s,newlen,char);
1137 SvLEN_set(sv, newlen);
1143 sv_setiv(register SV *sv, IV i)
1145 SV_CHECK_THINKFIRST(sv);
1146 switch (SvTYPE(sv)) {
1148 sv_upgrade(sv, SVt_IV);
1151 sv_upgrade(sv, SVt_PVNV);
1155 sv_upgrade(sv, SVt_PVIV);
1171 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1172 op_desc[PL_op->op_type]);
1175 (void)SvIOK_only(sv); /* validate number */
1181 sv_setiv_mg(register SV *sv, IV i)
1188 sv_setuv(register SV *sv, UV u)
1193 sv_setnv(sv, (double)u);
1197 sv_setuv_mg(register SV *sv, UV u)
1204 sv_setnv(register SV *sv, double num)
1206 SV_CHECK_THINKFIRST(sv);
1207 switch (SvTYPE(sv)) {
1210 sv_upgrade(sv, SVt_NV);
1215 sv_upgrade(sv, SVt_PVNV);
1231 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1232 op_name[PL_op->op_type]);
1236 (void)SvNOK_only(sv); /* validate number */
1241 sv_setnv_mg(register SV *sv, double num)
1248 not_a_number(SV *sv)
1254 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1255 /* each *s can expand to 4 chars + "...\0",
1256 i.e. need room for 8 chars */
1258 for (s = SvPVX(sv); *s && d < limit; s++) {
1260 if (ch & 128 && !isPRINT_LC(ch)) {
1269 else if (ch == '\r') {
1273 else if (ch == '\f') {
1277 else if (ch == '\\') {
1281 else if (isPRINT_LC(ch))
1296 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf,
1297 op_name[PL_op->op_type]);
1299 warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf);
1303 sv_2iv(register SV *sv)
1307 if (SvGMAGICAL(sv)) {
1312 if (SvNVX(sv) < 0.0)
1313 return I_V(SvNVX(sv));
1315 return (IV) U_V(SvNVX(sv));
1317 if (SvPOKp(sv) && SvLEN(sv))
1320 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1322 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1323 warner(WARN_UNINITIALIZED, warn_uninit);
1328 if (SvTHINKFIRST(sv)) {
1332 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1333 return SvIV(tmpstr);
1334 #endif /* OVERLOAD */
1335 return (IV)SvRV(sv);
1337 if (SvREADONLY(sv)) {
1339 if (SvNVX(sv) < 0.0)
1340 return I_V(SvNVX(sv));
1342 return (IV) U_V(SvNVX(sv));
1344 if (SvPOKp(sv) && SvLEN(sv))
1348 if (ckWARN(WARN_UNINITIALIZED))
1349 warner(WARN_UNINITIALIZED, warn_uninit);
1354 switch (SvTYPE(sv)) {
1356 sv_upgrade(sv, SVt_IV);
1359 sv_upgrade(sv, SVt_PVIV);
1362 sv_upgrade(sv, SVt_PVNV);
1367 if (SvNVX(sv) < 0.0)
1368 SvIVX(sv) = I_V(SvNVX(sv));
1370 SvUVX(sv) = U_V(SvNVX(sv));
1372 else if (SvPOKp(sv) && SvLEN(sv)) {
1374 SvIVX(sv) = asIV(sv);
1378 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1379 warner(WARN_UNINITIALIZED, warn_uninit);
1382 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1383 (unsigned long)sv,(long)SvIVX(sv)));
1388 sv_2uv(register SV *sv)
1392 if (SvGMAGICAL(sv)) {
1397 return U_V(SvNVX(sv));
1398 if (SvPOKp(sv) && SvLEN(sv))
1401 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1403 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1404 warner(WARN_UNINITIALIZED, warn_uninit);
1409 if (SvTHINKFIRST(sv)) {
1413 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1414 return SvUV(tmpstr);
1415 #endif /* OVERLOAD */
1416 return (UV)SvRV(sv);
1418 if (SvREADONLY(sv)) {
1420 return U_V(SvNVX(sv));
1422 if (SvPOKp(sv) && SvLEN(sv))
1426 if (ckWARN(WARN_UNINITIALIZED))
1427 warner(WARN_UNINITIALIZED, warn_uninit);
1432 switch (SvTYPE(sv)) {
1434 sv_upgrade(sv, SVt_IV);
1437 sv_upgrade(sv, SVt_PVIV);
1440 sv_upgrade(sv, SVt_PVNV);
1445 SvUVX(sv) = U_V(SvNVX(sv));
1447 else if (SvPOKp(sv) && SvLEN(sv)) {
1449 SvUVX(sv) = asUV(sv);
1452 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1454 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1455 warner(WARN_UNINITIALIZED, warn_uninit);
1459 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1460 (unsigned long)sv,SvUVX(sv)));
1465 sv_2nv(register SV *sv)
1469 if (SvGMAGICAL(sv)) {
1473 if (SvPOKp(sv) && SvLEN(sv)) {
1475 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1477 SET_NUMERIC_STANDARD();
1478 return atof(SvPVX(sv));
1481 return (double)SvIVX(sv);
1483 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1485 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1486 warner(WARN_UNINITIALIZED, warn_uninit);
1491 if (SvTHINKFIRST(sv)) {
1495 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1496 return SvNV(tmpstr);
1497 #endif /* OVERLOAD */
1498 return (double)(unsigned long)SvRV(sv);
1500 if (SvREADONLY(sv)) {
1502 if (SvPOKp(sv) && SvLEN(sv)) {
1503 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1505 SET_NUMERIC_STANDARD();
1506 return atof(SvPVX(sv));
1509 return (double)SvIVX(sv);
1510 if (ckWARN(WARN_UNINITIALIZED))
1511 warner(WARN_UNINITIALIZED, warn_uninit);
1515 if (SvTYPE(sv) < SVt_NV) {
1516 if (SvTYPE(sv) == SVt_IV)
1517 sv_upgrade(sv, SVt_PVNV);
1519 sv_upgrade(sv, SVt_NV);
1520 DEBUG_c(SET_NUMERIC_STANDARD());
1521 DEBUG_c(PerlIO_printf(Perl_debug_log,
1522 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1524 else if (SvTYPE(sv) < SVt_PVNV)
1525 sv_upgrade(sv, SVt_PVNV);
1527 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1529 SvNVX(sv) = (double)SvIVX(sv);
1531 else if (SvPOKp(sv) && SvLEN(sv)) {
1533 if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
1535 SET_NUMERIC_STANDARD();
1536 SvNVX(sv) = atof(SvPVX(sv));
1540 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1541 warner(WARN_UNINITIALIZED, warn_uninit);
1545 DEBUG_c(SET_NUMERIC_STANDARD());
1546 DEBUG_c(PerlIO_printf(Perl_debug_log,
1547 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1554 I32 numtype = looks_like_number(sv);
1558 return atol(SvPVX(sv));
1561 if (ckWARN(WARN_NUMERIC))
1564 SET_NUMERIC_STANDARD();
1565 d = atof(SvPVX(sv));
1575 I32 numtype = looks_like_number(sv);
1579 return strtoul(SvPVX(sv), Null(char**), 10);
1583 if (ckWARN(WARN_NUMERIC))
1586 SET_NUMERIC_STANDARD();
1587 return U_V(atof(SvPVX(sv)));
1591 looks_like_number(SV *sv)
1594 register char *send;
1595 register char *sbegin;
1603 else if (SvPOKp(sv))
1604 sbegin = SvPV(sv, len);
1607 send = sbegin + len;
1612 if (*s == '+' || *s == '-')
1615 /* next must be digit or '.' */
1619 } while (isDIGIT(*s));
1622 while (isDIGIT(*s)) /* optional digits after "." */
1626 else if (*s == '.') {
1628 /* no digits before '.' means we need digits after it */
1632 } while (isDIGIT(*s));
1641 * we return 1 if the number can be converted to _integer_ with atol()
1642 * and 2 if you need (int)atof().
1646 /* we can have an optional exponent part */
1647 if (*s == 'e' || *s == 'E') {
1650 if (*s == '+' || *s == '-')
1655 } while (isDIGIT(*s));
1664 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1670 sv_2pv(register SV *sv, STRLEN *lp)
1675 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1681 if (SvGMAGICAL(sv)) {
1688 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1693 SET_NUMERIC_STANDARD();
1694 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1699 if (!(SvFLAGS(sv) & SVs_PADTMP)) {
1701 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
1702 warner(WARN_UNINITIALIZED, warn_uninit);
1708 if (SvTHINKFIRST(sv)) {
1712 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1713 return SvPV(tmpstr,*lp);
1714 #endif /* OVERLOAD */
1721 switch (SvTYPE(sv)) {
1723 if ( ((SvFLAGS(sv) &
1724 (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG))
1725 == (SVs_OBJECT|SVs_RMG))
1726 && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp")
1727 && (mg = mg_find(sv, 'r'))) {
1729 regexp *re = (regexp *)mg->mg_obj;
1732 char *fptr = "msix";
1737 U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12;
1739 while(ch = *fptr++) {
1741 reflags[left++] = ch;
1744 reflags[right--] = ch;
1749 reflags[left] = '-';
1753 mg->mg_len = re->prelen + 4 + left;
1754 New(616, mg->mg_ptr, mg->mg_len + 1 + left, char);
1755 Copy("(?", mg->mg_ptr, 2, char);
1756 Copy(reflags, mg->mg_ptr+2, left, char);
1757 Copy(":", mg->mg_ptr+left+2, 1, char);
1758 Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char);
1759 mg->mg_ptr[mg->mg_len - 1] = ')';
1760 mg->mg_ptr[mg->mg_len] = 0;
1762 PL_reginterp_cnt += re->program[0].next_off;
1774 case SVt_PVBM: s = "SCALAR"; break;
1775 case SVt_PVLV: s = "LVALUE"; break;
1776 case SVt_PVAV: s = "ARRAY"; break;
1777 case SVt_PVHV: s = "HASH"; break;
1778 case SVt_PVCV: s = "CODE"; break;
1779 case SVt_PVGV: s = "GLOB"; break;
1780 case SVt_PVFM: s = "FORMAT"; break;
1781 case SVt_PVIO: s = "IO"; break;
1782 default: s = "UNKNOWN"; break;
1786 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1789 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1795 if (SvREADONLY(sv)) {
1797 SET_NUMERIC_STANDARD();
1798 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1803 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1809 if (ckWARN(WARN_UNINITIALIZED))
1810 warner(WARN_UNINITIALIZED, warn_uninit);
1816 (void)SvUPGRADE(sv, SVt_PV);
1818 if (SvTYPE(sv) < SVt_PVNV)
1819 sv_upgrade(sv, SVt_PVNV);
1822 olderrno = errno; /* some Xenix systems wipe out errno here */
1824 if (SvNVX(sv) == 0.0)
1825 (void)strcpy(s,"0");
1829 SET_NUMERIC_STANDARD();
1830 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1833 #ifdef FIXNEGATIVEZERO
1834 if (*s == '-' && s[1] == '0' && !s[2])
1843 else if (SvIOKp(sv)) {
1844 U32 oldIOK = SvIOK(sv);
1845 if (SvTYPE(sv) < SVt_PVIV)
1846 sv_upgrade(sv, SVt_PVIV);
1847 olderrno = errno; /* some Xenix systems wipe out errno here */
1848 sv_setpviv(sv, SvIVX(sv));
1858 if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1859 warner(WARN_UNINITIALIZED, warn_uninit);
1863 *lp = s - SvPVX(sv);
1866 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1870 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1871 /* Sneaky stuff here */
1875 tsv = newSVpv(tmpbuf, 0);
1891 len = strlen(tmpbuf);
1893 #ifdef FIXNEGATIVEZERO
1894 if (len == 2 && t[0] == '-' && t[1] == '0') {
1899 (void)SvUPGRADE(sv, SVt_PV);
1901 s = SvGROW(sv, len + 1);
1909 /* This function is only called on magical items */
1911 sv_2bool(register SV *sv)
1923 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1924 return SvTRUE(tmpsv);
1926 #endif /* OVERLOAD */
1927 return SvRV(sv) != 0;
1930 register XPV* Xpvtmp;
1931 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1932 (*Xpvtmp->xpv_pv > '0' ||
1933 Xpvtmp->xpv_cur > 1 ||
1934 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1941 return SvIVX(sv) != 0;
1944 return SvNVX(sv) != 0.0;
1951 /* Note: sv_setsv() should not be called with a source string that needs
1952 * to be reused, since it may destroy the source string if it is marked
1957 sv_setsv(SV *dstr, register SV *sstr)
1960 register U32 sflags;
1966 SV_CHECK_THINKFIRST(dstr);
1968 sstr = &PL_sv_undef;
1969 stype = SvTYPE(sstr);
1970 dtype = SvTYPE(dstr);
1972 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1973 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1974 sv_setpvn(dstr, "", 0);
1975 (void)SvPOK_only(dstr);
1976 dtype = SvTYPE(dstr);
1981 #endif /* OVERLOAD */
1982 /* There's a lot of redundancy below but we're going for speed here */
1987 if (dtype != SVt_PVGV) {
1988 (void)SvOK_off(dstr);
1996 sv_upgrade(dstr, SVt_IV);
1999 sv_upgrade(dstr, SVt_PVNV);
2003 sv_upgrade(dstr, SVt_PVIV);
2006 (void)SvIOK_only(dstr);
2007 SvIVX(dstr) = SvIVX(sstr);
2018 sv_upgrade(dstr, SVt_NV);
2023 sv_upgrade(dstr, SVt_PVNV);
2026 SvNVX(dstr) = SvNVX(sstr);
2027 (void)SvNOK_only(dstr);
2035 sv_upgrade(dstr, SVt_RV);
2036 else if (dtype == SVt_PVGV &&
2037 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
2040 if (PL_curcop->cop_stash != GvSTASH(dstr))
2041 GvIMPORTED_on(dstr);
2051 sv_upgrade(dstr, SVt_PV);
2054 if (dtype < SVt_PVIV)
2055 sv_upgrade(dstr, SVt_PVIV);
2058 if (dtype < SVt_PVNV)
2059 sv_upgrade(dstr, SVt_PVNV);
2066 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
2067 op_name[PL_op->op_type]);
2069 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
2073 if (dtype <= SVt_PVGV) {
2075 if (dtype != SVt_PVGV) {
2076 char *name = GvNAME(sstr);
2077 STRLEN len = GvNAMELEN(sstr);
2078 sv_upgrade(dstr, SVt_PVGV);
2079 sv_magic(dstr, dstr, '*', name, len);
2080 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
2081 GvNAME(dstr) = savepvn(name, len);
2082 GvNAMELEN(dstr) = len;
2083 SvFAKE_on(dstr); /* can coerce to non-glob */
2085 /* ahem, death to those who redefine active sort subs */
2086 else if (PL_curstackinfo->si_type == PERLSI_SORT
2087 && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr)))
2088 croak("Can't redefine active sort subroutine %s",
2090 (void)SvOK_off(dstr);
2091 GvINTRO_off(dstr); /* one-shot flag */
2093 GvGP(dstr) = gp_ref(GvGP(sstr));
2095 if (PL_curcop->cop_stash != GvSTASH(dstr))
2096 GvIMPORTED_on(dstr);
2103 if (SvGMAGICAL(sstr)) {
2105 if (SvTYPE(sstr) != stype) {
2106 stype = SvTYPE(sstr);
2107 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2111 if (stype == SVt_PVLV)
2112 SvUPGRADE(dstr, SVt_PVNV);
2114 SvUPGRADE(dstr, stype);
2117 sflags = SvFLAGS(sstr);
2119 if (sflags & SVf_ROK) {
2120 if (dtype >= SVt_PV) {
2121 if (dtype == SVt_PVGV) {
2122 SV *sref = SvREFCNT_inc(SvRV(sstr));
2124 int intro = GvINTRO(dstr);
2128 GvGP(dstr)->gp_refcnt--;
2129 GvINTRO_off(dstr); /* one-shot flag */
2130 Newz(602,gp, 1, GP);
2131 GvGP(dstr) = gp_ref(gp);
2132 GvSV(dstr) = NEWSV(72,0);
2133 GvLINE(dstr) = PL_curcop->cop_line;
2134 GvEGV(dstr) = (GV*)dstr;
2137 switch (SvTYPE(sref)) {
2140 SAVESPTR(GvAV(dstr));
2142 dref = (SV*)GvAV(dstr);
2143 GvAV(dstr) = (AV*)sref;
2144 if (PL_curcop->cop_stash != GvSTASH(dstr))
2145 GvIMPORTED_AV_on(dstr);
2149 SAVESPTR(GvHV(dstr));
2151 dref = (SV*)GvHV(dstr);
2152 GvHV(dstr) = (HV*)sref;
2153 if (PL_curcop->cop_stash != GvSTASH(dstr))
2154 GvIMPORTED_HV_on(dstr);
2158 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2159 SvREFCNT_dec(GvCV(dstr));
2160 GvCV(dstr) = Nullcv;
2161 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2162 PL_sub_generation++;
2164 SAVESPTR(GvCV(dstr));
2167 dref = (SV*)GvCV(dstr);
2168 if (GvCV(dstr) != (CV*)sref) {
2169 CV* cv = GvCV(dstr);
2171 if (!GvCVGEN((GV*)dstr) &&
2172 (CvROOT(cv) || CvXSUB(cv)))
2174 SV *const_sv = cv_const_sv(cv);
2175 bool const_changed = TRUE;
2177 const_changed = sv_cmp(const_sv,
2178 op_const_sv(CvSTART((CV*)sref),
2180 /* ahem, death to those who redefine
2181 * active sort subs */
2182 if (PL_curstackinfo->si_type == PERLSI_SORT &&
2183 PL_sortcop == CvSTART(cv))
2185 "Can't redefine active sort subroutine %s",
2186 GvENAME((GV*)dstr));
2187 if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) {
2188 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2189 && HvNAME(GvSTASH(CvGV(cv)))
2190 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2192 warner(WARN_REDEFINE, const_sv ?
2193 "Constant subroutine %s redefined"
2194 : "Subroutine %s redefined",
2195 GvENAME((GV*)dstr));
2198 cv_ckproto(cv, (GV*)dstr,
2199 SvPOK(sref) ? SvPVX(sref) : Nullch);
2201 GvCV(dstr) = (CV*)sref;
2202 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2203 GvASSUMECV_on(dstr);
2204 PL_sub_generation++;
2206 if (PL_curcop->cop_stash != GvSTASH(dstr))
2207 GvIMPORTED_CV_on(dstr);
2211 SAVESPTR(GvIOp(dstr));
2213 dref = (SV*)GvIOp(dstr);
2214 GvIOp(dstr) = (IO*)sref;
2218 SAVESPTR(GvSV(dstr));
2220 dref = (SV*)GvSV(dstr);
2222 if (PL_curcop->cop_stash != GvSTASH(dstr))
2223 GvIMPORTED_SV_on(dstr);
2234 (void)SvOOK_off(dstr); /* backoff */
2235 Safefree(SvPVX(dstr));
2236 SvLEN(dstr)=SvCUR(dstr)=0;
2239 (void)SvOK_off(dstr);
2240 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2242 if (sflags & SVp_NOK) {
2244 SvNVX(dstr) = SvNVX(sstr);
2246 if (sflags & SVp_IOK) {
2247 (void)SvIOK_on(dstr);
2248 SvIVX(dstr) = SvIVX(sstr);
2251 if (SvAMAGIC(sstr)) {
2254 #endif /* OVERLOAD */
2256 else if (sflags & SVp_POK) {
2259 * Check to see if we can just swipe the string. If so, it's a
2260 * possible small lose on short strings, but a big win on long ones.
2261 * It might even be a win on short strings if SvPVX(dstr)
2262 * has to be allocated and SvPVX(sstr) has to be freed.
2265 if (SvTEMP(sstr) && /* slated for free anyway? */
2266 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2267 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2269 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2271 SvFLAGS(dstr) &= ~SVf_OOK;
2272 Safefree(SvPVX(dstr) - SvIVX(dstr));
2275 Safefree(SvPVX(dstr));
2277 (void)SvPOK_only(dstr);
2278 SvPV_set(dstr, SvPVX(sstr));
2279 SvLEN_set(dstr, SvLEN(sstr));
2280 SvCUR_set(dstr, SvCUR(sstr));
2282 (void)SvOK_off(sstr);
2283 SvPV_set(sstr, Nullch);
2288 else { /* have to copy actual string */
2289 STRLEN len = SvCUR(sstr);
2291 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2292 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2293 SvCUR_set(dstr, len);
2294 *SvEND(dstr) = '\0';
2295 (void)SvPOK_only(dstr);
2298 if (sflags & SVp_NOK) {
2300 SvNVX(dstr) = SvNVX(sstr);
2302 if (sflags & SVp_IOK) {
2303 (void)SvIOK_on(dstr);
2304 SvIVX(dstr) = SvIVX(sstr);
2307 else if (sflags & SVp_NOK) {
2308 SvNVX(dstr) = SvNVX(sstr);
2309 (void)SvNOK_only(dstr);
2311 (void)SvIOK_on(dstr);
2312 SvIVX(dstr) = SvIVX(sstr);
2315 else if (sflags & SVp_IOK) {
2316 (void)SvIOK_only(dstr);
2317 SvIVX(dstr) = SvIVX(sstr);
2320 if (dtype == SVt_PVGV) {
2321 if (ckWARN(WARN_UNSAFE))
2322 warner(WARN_UNSAFE, "Undefined value assigned to typeglob");
2325 (void)SvOK_off(dstr);
2331 sv_setsv_mg(SV *dstr, register SV *sstr)
2333 sv_setsv(dstr,sstr);
2338 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2340 register char *dptr;
2341 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2342 elicit a warning, but it won't hurt. */
2343 SV_CHECK_THINKFIRST(sv);
2348 if (SvTYPE(sv) >= SVt_PV) {
2349 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2353 sv_upgrade(sv, SVt_PV);
2355 SvGROW(sv, len + 1);
2357 Move(ptr,dptr,len,char);
2360 (void)SvPOK_only(sv); /* validate pointer */
2365 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2367 sv_setpvn(sv,ptr,len);
2372 sv_setpv(register SV *sv, register const char *ptr)
2374 register STRLEN len;
2376 SV_CHECK_THINKFIRST(sv);
2382 if (SvTYPE(sv) >= SVt_PV) {
2383 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2387 sv_upgrade(sv, SVt_PV);
2389 SvGROW(sv, len + 1);
2390 Move(ptr,SvPVX(sv),len+1,char);
2392 (void)SvPOK_only(sv); /* validate pointer */
2397 sv_setpv_mg(register SV *sv, register const char *ptr)
2404 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2406 SV_CHECK_THINKFIRST(sv);
2407 (void)SvUPGRADE(sv, SVt_PV);
2412 (void)SvOOK_off(sv);
2414 Safefree(SvPVX(sv));
2415 Renew(ptr, len+1, char);
2418 SvLEN_set(sv, len+1);
2420 (void)SvPOK_only(sv); /* validate pointer */
2425 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2427 sv_usepvn(sv,ptr,len);
2432 sv_check_thinkfirst(register SV *sv)
2434 if (SvREADONLY(sv)) {
2436 if (PL_curcop != &PL_compiling)
2444 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2448 register STRLEN delta;
2450 if (!ptr || !SvPOKp(sv))
2452 SV_CHECK_THINKFIRST(sv);
2453 if (SvTYPE(sv) < SVt_PVIV)
2454 sv_upgrade(sv,SVt_PVIV);
2458 SvFLAGS(sv) |= SVf_OOK;
2460 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2461 delta = ptr - SvPVX(sv);
2469 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2474 junk = SvPV_force(sv, tlen);
2475 SvGROW(sv, tlen + len + 1);
2478 Move(ptr,SvPVX(sv)+tlen,len,char);
2481 (void)SvPOK_only(sv); /* validate pointer */
2486 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2488 sv_catpvn(sv,ptr,len);
2493 sv_catsv(SV *dstr, register SV *sstr)
2499 if (s = SvPV(sstr, len))
2500 sv_catpvn(dstr,s,len);
2504 sv_catsv_mg(SV *dstr, register SV *sstr)
2506 sv_catsv(dstr,sstr);
2511 sv_catpv(register SV *sv, register char *ptr)
2513 register STRLEN len;
2519 junk = SvPV_force(sv, tlen);
2521 SvGROW(sv, tlen + len + 1);
2524 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2526 (void)SvPOK_only(sv); /* validate pointer */
2531 sv_catpv_mg(register SV *sv, register char *ptr)
2547 sv_upgrade(sv, SVt_PV);
2548 SvGROW(sv, len + 1);
2553 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2556 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2560 if (SvREADONLY(sv)) {
2562 if (PL_curcop != &PL_compiling && !strchr("gBf", how))
2565 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2566 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2573 (void)SvUPGRADE(sv, SVt_PVMG);
2575 Newz(702,mg, 1, MAGIC);
2576 mg->mg_moremagic = SvMAGIC(sv);
2579 if (!obj || obj == sv || how == '#' || how == 'r')
2583 mg->mg_obj = SvREFCNT_inc(obj);
2584 mg->mg_flags |= MGf_REFCOUNTED;
2587 mg->mg_len = namlen;
2590 mg->mg_ptr = savepvn(name, namlen);
2591 else if (namlen == HEf_SVKEY)
2592 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2596 mg->mg_virtual = &vtbl_sv;
2600 mg->mg_virtual = &vtbl_amagic;
2603 mg->mg_virtual = &vtbl_amagicelem;
2608 #endif /* OVERLOAD */
2610 mg->mg_virtual = &vtbl_bm;
2613 mg->mg_virtual = &vtbl_regdata;
2616 mg->mg_virtual = &vtbl_regdatum;
2619 mg->mg_virtual = &vtbl_env;
2622 mg->mg_virtual = &vtbl_fm;
2625 mg->mg_virtual = &vtbl_envelem;
2628 mg->mg_virtual = &vtbl_mglob;
2631 mg->mg_virtual = &vtbl_isa;
2634 mg->mg_virtual = &vtbl_isaelem;
2637 mg->mg_virtual = &vtbl_nkeys;
2644 mg->mg_virtual = &vtbl_dbline;
2648 mg->mg_virtual = &vtbl_mutex;
2650 #endif /* USE_THREADS */
2651 #ifdef USE_LOCALE_COLLATE
2653 mg->mg_virtual = &vtbl_collxfrm;
2655 #endif /* USE_LOCALE_COLLATE */
2657 mg->mg_virtual = &vtbl_pack;
2661 mg->mg_virtual = &vtbl_packelem;
2664 mg->mg_virtual = &vtbl_regexp;
2667 mg->mg_virtual = &vtbl_sig;
2670 mg->mg_virtual = &vtbl_sigelem;
2673 mg->mg_virtual = &vtbl_taint;
2677 mg->mg_virtual = &vtbl_uvar;
2680 mg->mg_virtual = &vtbl_vec;
2683 mg->mg_virtual = &vtbl_substr;
2686 mg->mg_virtual = &vtbl_defelem;
2689 mg->mg_virtual = &vtbl_glob;
2692 mg->mg_virtual = &vtbl_arylen;
2695 mg->mg_virtual = &vtbl_pos;
2697 case '~': /* Reserved for use by extensions not perl internals. */
2698 /* Useful for attaching extension internal data to perl vars. */
2699 /* Note that multiple extensions may clash if magical scalars */
2700 /* etc holding private data from one are passed to another. */
2704 croak("Don't know how to handle magic of type '%c'", how);
2708 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2712 sv_unmagic(SV *sv, int type)
2716 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2719 for (mg = *mgp; mg; mg = *mgp) {
2720 if (mg->mg_type == type) {
2721 MGVTBL* vtbl = mg->mg_virtual;
2722 *mgp = mg->mg_moremagic;
2723 if (vtbl && (vtbl->svt_free != NULL))
2724 (VTBL->svt_free)(sv, mg);
2725 if (mg->mg_ptr && mg->mg_type != 'g')
2726 if (mg->mg_len >= 0)
2727 Safefree(mg->mg_ptr);
2728 else if (mg->mg_len == HEf_SVKEY)
2729 SvREFCNT_dec((SV*)mg->mg_ptr);
2730 if (mg->mg_flags & MGf_REFCOUNTED)
2731 SvREFCNT_dec(mg->mg_obj);
2735 mgp = &mg->mg_moremagic;
2739 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2746 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2750 register char *midend;
2751 register char *bigend;
2757 croak("Can't modify non-existent substring");
2758 SvPV_force(bigstr, curlen);
2759 if (offset + len > curlen) {
2760 SvGROW(bigstr, offset+len+1);
2761 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
2762 SvCUR_set(bigstr, offset+len);
2765 i = littlelen - len;
2766 if (i > 0) { /* string might grow */
2767 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2768 mid = big + offset + len;
2769 midend = bigend = big + SvCUR(bigstr);
2772 while (midend > mid) /* shove everything down */
2773 *--bigend = *--midend;
2774 Move(little,big+offset,littlelen,char);
2780 Move(little,SvPVX(bigstr)+offset,len,char);
2785 big = SvPVX(bigstr);
2788 bigend = big + SvCUR(bigstr);
2790 if (midend > bigend)
2791 croak("panic: sv_insert");
2793 if (mid - big > bigend - midend) { /* faster to shorten from end */
2795 Move(little, mid, littlelen,char);
2798 i = bigend - midend;
2800 Move(midend, mid, i,char);
2804 SvCUR_set(bigstr, mid - big);
2807 else if (i = mid - big) { /* faster from front */
2808 midend -= littlelen;
2810 sv_chop(bigstr,midend-i);
2815 Move(little, mid, littlelen,char);
2817 else if (littlelen) {
2818 midend -= littlelen;
2819 sv_chop(bigstr,midend);
2820 Move(little,midend,littlelen,char);
2823 sv_chop(bigstr,midend);
2828 /* make sv point to what nstr did */
2831 sv_replace(register SV *sv, register SV *nsv)
2833 U32 refcnt = SvREFCNT(sv);
2834 SV_CHECK_THINKFIRST(sv);
2835 if (SvREFCNT(nsv) != 1)
2836 warn("Reference miscount in sv_replace()");
2837 if (SvMAGICAL(sv)) {
2841 sv_upgrade(nsv, SVt_PVMG);
2842 SvMAGIC(nsv) = SvMAGIC(sv);
2843 SvFLAGS(nsv) |= SvMAGICAL(sv);
2849 assert(!SvREFCNT(sv));
2850 StructCopy(nsv,sv,SV);
2851 SvREFCNT(sv) = refcnt;
2852 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2857 sv_clear(register SV *sv)
2861 assert(SvREFCNT(sv) == 0);
2865 if (PL_defstash) { /* Still have a symbol table? */
2870 Zero(&tmpref, 1, SV);
2871 sv_upgrade(&tmpref, SVt_RV);
2873 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2874 SvREFCNT(&tmpref) = 1;
2877 stash = SvSTASH(sv);
2878 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2881 PUSHSTACKi(PERLSI_DESTROY);
2882 SvRV(&tmpref) = SvREFCNT_inc(sv);
2887 perl_call_sv((SV*)GvCV(destructor),
2888 G_DISCARD|G_EVAL|G_KEEPERR);
2893 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2895 del_XRV(SvANY(&tmpref));
2899 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2900 SvOBJECT_off(sv); /* Curse the object. */
2901 if (SvTYPE(sv) != SVt_PVIO)
2902 --PL_sv_objcount; /* XXX Might want something more general */
2905 if (PL_in_clean_objs)
2906 croak("DESTROY created new reference to dead object");
2907 /* DESTROY gave object new lease on life */
2911 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2914 switch (SvTYPE(sv)) {
2917 IoIFP(sv) != PerlIO_stdin() &&
2918 IoIFP(sv) != PerlIO_stdout() &&
2919 IoIFP(sv) != PerlIO_stderr())
2921 Safefree(IoTOP_NAME(sv));
2922 Safefree(IoFMT_NAME(sv));
2923 Safefree(IoBOTTOM_NAME(sv));
2938 SvREFCNT_dec(LvTARG(sv));
2942 Safefree(GvNAME(sv));
2943 /* cannot decrease stash refcount yet, as we might recursively delete
2944 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2945 of stash until current sv is completely gone.
2946 -- JohnPC, 27 Mar 1998 */
2947 stash = GvSTASH(sv);
2953 (void)SvOOK_off(sv);
2958 SvREFCNT_dec(SvRV(sv));
2959 else if (SvPVX(sv) && SvLEN(sv))
2960 Safefree(SvPVX(sv));
2970 switch (SvTYPE(sv)) {
2986 del_XPVIV(SvANY(sv));
2989 del_XPVNV(SvANY(sv));
2992 del_XPVMG(SvANY(sv));
2995 del_XPVLV(SvANY(sv));
2998 del_XPVAV(SvANY(sv));
3001 del_XPVHV(SvANY(sv));
3004 del_XPVCV(SvANY(sv));
3007 del_XPVGV(SvANY(sv));
3008 /* code duplication for increased performance. */
3009 SvFLAGS(sv) &= SVf_BREAK;
3010 SvFLAGS(sv) |= SVTYPEMASK;
3011 /* decrease refcount of the stash that owns this GV, if any */
3013 SvREFCNT_dec(stash);
3014 return; /* not break, SvFLAGS reset already happened */
3016 del_XPVBM(SvANY(sv));
3019 del_XPVFM(SvANY(sv));
3022 del_XPVIO(SvANY(sv));
3025 SvFLAGS(sv) &= SVf_BREAK;
3026 SvFLAGS(sv) |= SVTYPEMASK;
3033 ATOMIC_INC(SvREFCNT(sv));
3040 int refcount_is_zero;
3044 if (SvREFCNT(sv) == 0) {
3045 if (SvFLAGS(sv) & SVf_BREAK)
3047 if (PL_in_clean_all) /* All is fair */
3049 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3050 /* make sure SvREFCNT(sv)==0 happens very seldom */
3051 SvREFCNT(sv) = (~(U32)0)/2;
3054 warn("Attempt to free unreferenced scalar");
3057 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
3058 if (!refcount_is_zero)
3062 warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv);
3066 if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
3067 /* make sure SvREFCNT(sv)==0 happens very seldom */
3068 SvREFCNT(sv) = (~(U32)0)/2;
3077 sv_len(register SV *sv)
3086 len = mg_length(sv);
3088 junk = SvPV(sv, len);
3093 sv_len_utf8(register SV *sv)
3104 len = mg_length(sv);
3107 s = (U8*)SvPV(sv, len);
3118 sv_pos_u2b(register SV *sv, I32* offsetp, I32* lenp)
3123 I32 uoffset = *offsetp;
3129 start = s = (U8*)SvPV(sv, len);
3131 while (s < send && uoffset--)
3135 *offsetp = s - start;
3139 while (s < send && ulen--)
3149 sv_pos_b2u(register SV *sv, I32* offsetp)
3158 s = (U8*)SvPV(sv, len);
3160 croak("panic: bad byte offset");
3161 send = s + *offsetp;
3168 warn("Malformed UTF-8 character");
3176 sv_eq(register SV *str1, register SV *str2)
3188 pv1 = SvPV(str1, cur1);
3193 pv2 = SvPV(str2, cur2);
3198 return memEQ(pv1, pv2, cur1);
3202 sv_cmp(register SV *str1, register SV *str2)
3205 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
3207 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3211 return cur2 ? -1 : 0;
3216 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3219 return retval < 0 ? -1 : 1;
3224 return cur1 < cur2 ? -1 : 1;
3228 sv_cmp_locale(register SV *sv1, register SV *sv2)
3230 #ifdef USE_LOCALE_COLLATE
3236 if (PL_collation_standard)
3240 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3242 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3244 if (!pv1 || !len1) {
3255 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3258 return retval < 0 ? -1 : 1;
3261 * When the result of collation is equality, that doesn't mean
3262 * that there are no differences -- some locales exclude some
3263 * characters from consideration. So to avoid false equalities,
3264 * we use the raw string as a tiebreaker.
3270 #endif /* USE_LOCALE_COLLATE */
3272 return sv_cmp(sv1, sv2);
3275 #ifdef USE_LOCALE_COLLATE
3277 * Any scalar variable may carry an 'o' magic that contains the
3278 * scalar data of the variable transformed to such a format that
3279 * a normal memory comparison can be used to compare the data
3280 * according to the locale settings.
3283 sv_collxfrm(SV *sv, STRLEN *nxp)
3287 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3288 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) {
3293 Safefree(mg->mg_ptr);
3295 if ((xf = mem_collxfrm(s, len, &xlen))) {
3296 if (SvREADONLY(sv)) {
3299 return xf + sizeof(PL_collation_ix);
3302 sv_magic(sv, 0, 'o', 0, 0);
3303 mg = mg_find(sv, 'o');
3316 if (mg && mg->mg_ptr) {
3318 return mg->mg_ptr + sizeof(PL_collation_ix);
3326 #endif /* USE_LOCALE_COLLATE */
3329 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3334 register STDCHAR rslast;
3335 register STDCHAR *bp;
3339 SV_CHECK_THINKFIRST(sv);
3340 (void)SvUPGRADE(sv, SVt_PV);
3343 if (RsSNARF(PL_rs)) {
3347 else if (RsRECORD(PL_rs)) {
3348 I32 recsize, bytesread;
3351 /* Grab the size of the record we're getting */
3352 recsize = SvIV(SvRV(PL_rs));
3353 (void)SvPOK_only(sv); /* Validate pointer */
3354 buffer = SvGROW(sv, recsize + 1);
3357 /* VMS wants read instead of fread, because fread doesn't respect */
3358 /* RMS record boundaries. This is not necessarily a good thing to be */
3359 /* doing, but we've got no other real choice */
3360 bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize);
3362 bytesread = PerlIO_read(fp, buffer, recsize);
3364 SvCUR_set(sv, bytesread);
3365 buffer[bytesread] = '\0';
3366 return(SvCUR(sv) ? SvPVX(sv) : Nullch);
3368 else if (RsPARA(PL_rs)) {
3373 rsptr = SvPV(PL_rs, rslen);
3374 rslast = rslen ? rsptr[rslen - 1] : '\0';
3376 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3377 do { /* to make sure file boundaries work right */
3380 i = PerlIO_getc(fp);
3384 PerlIO_ungetc(fp,i);
3390 /* See if we know enough about I/O mechanism to cheat it ! */
3392 /* This used to be #ifdef test - it is made run-time test for ease
3393 of abstracting out stdio interface. One call should be cheap
3394 enough here - and may even be a macro allowing compile
3398 if (PerlIO_fast_gets(fp)) {
3401 * We're going to steal some values from the stdio struct
3402 * and put EVERYTHING in the innermost loop into registers.
3404 register STDCHAR *ptr;
3408 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3409 /* An ungetc()d char is handled separately from the regular
3410 * buffer, so we getc() it back out and stuff it in the buffer.
3412 i = PerlIO_getc(fp);
3413 if (i == EOF) return 0;
3414 *(--((*fp)->_ptr)) = (unsigned char) i;
3418 /* Here is some breathtakingly efficient cheating */
3420 cnt = PerlIO_get_cnt(fp); /* get count into register */
3421 (void)SvPOK_only(sv); /* validate pointer */
3422 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3423 if (cnt > 80 && SvLEN(sv) > append) {
3424 shortbuffered = cnt - SvLEN(sv) + append + 1;
3425 cnt -= shortbuffered;
3429 /* remember that cnt can be negative */
3430 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3435 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3436 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3437 DEBUG_P(PerlIO_printf(Perl_debug_log,
3438 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3439 DEBUG_P(PerlIO_printf(Perl_debug_log,
3440 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3441 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3442 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3447 while (cnt > 0) { /* this | eat */
3449 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3450 goto thats_all_folks; /* screams | sed :-) */
3454 Copy(ptr, bp, cnt, char); /* this | eat */
3455 bp += cnt; /* screams | dust */
3456 ptr += cnt; /* louder | sed :-) */
3461 if (shortbuffered) { /* oh well, must extend */
3462 cnt = shortbuffered;
3464 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3466 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3467 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3471 DEBUG_P(PerlIO_printf(Perl_debug_log,
3472 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3473 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3474 DEBUG_P(PerlIO_printf(Perl_debug_log,
3475 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3476 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3477 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3478 /* This used to call 'filbuf' in stdio form, but as that behaves like
3479 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3480 another abstraction. */
3481 i = PerlIO_getc(fp); /* get more characters */
3482 DEBUG_P(PerlIO_printf(Perl_debug_log,
3483 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3484 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3485 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3486 cnt = PerlIO_get_cnt(fp);
3487 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3488 DEBUG_P(PerlIO_printf(Perl_debug_log,
3489 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3491 if (i == EOF) /* all done for ever? */
3492 goto thats_really_all_folks;
3494 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3496 SvGROW(sv, bpx + cnt + 2);
3497 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3499 *bp++ = i; /* store character from PerlIO_getc */
3501 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3502 goto thats_all_folks;
3506 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3507 memNE((char*)bp - rslen, rsptr, rslen))
3508 goto screamer; /* go back to the fray */
3509 thats_really_all_folks:
3511 cnt += shortbuffered;
3512 DEBUG_P(PerlIO_printf(Perl_debug_log,
3513 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3514 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3515 DEBUG_P(PerlIO_printf(Perl_debug_log,
3516 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3517 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3518 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3520 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3521 DEBUG_P(PerlIO_printf(Perl_debug_log,
3522 "Screamer: done, len=%ld, string=|%.*s|\n",
3523 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3527 /*The big, slow, and stupid way */
3532 register STDCHAR *bpe = buf + sizeof(buf);
3534 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3535 ; /* keep reading */
3539 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3540 /* Accomodate broken VAXC compiler, which applies U8 cast to
3541 * both args of ?: operator, causing EOF to change into 255
3543 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3547 sv_catpvn(sv, (char *) buf, cnt);
3549 sv_setpvn(sv, (char *) buf, cnt);
3551 if (i != EOF && /* joy */
3553 SvCUR(sv) < rslen ||
3554 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3558 * If we're reading from a TTY and we get a short read,
3559 * indicating that the user hit his EOF character, we need
3560 * to notice it now, because if we try to read from the TTY
3561 * again, the EOF condition will disappear.
3563 * The comparison of cnt to sizeof(buf) is an optimization
3564 * that prevents unnecessary calls to feof().
3568 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3573 if (RsPARA(PL_rs)) { /* have to do this both before and after */
3574 while (i != EOF) { /* to make sure file boundaries work right */
3575 i = PerlIO_getc(fp);
3577 PerlIO_ungetc(fp,i);
3584 win32_strip_return(sv);
3587 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3592 sv_inc(register SV *sv)
3601 if (SvTHINKFIRST(sv)) {
3602 if (SvREADONLY(sv)) {
3604 if (PL_curcop != &PL_compiling)
3610 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3611 #endif /* OVERLOAD */
3617 flags = SvFLAGS(sv);
3618 if (flags & SVp_NOK) {
3619 (void)SvNOK_only(sv);
3623 if (flags & SVp_IOK) {
3624 if (SvIVX(sv) == IV_MAX)
3625 sv_setnv(sv, (double)IV_MAX + 1.0);
3627 (void)SvIOK_only(sv);
3632 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3633 if ((flags & SVTYPEMASK) < SVt_PVNV)
3634 sv_upgrade(sv, SVt_NV);
3636 (void)SvNOK_only(sv);
3640 while (isALPHA(*d)) d++;
3641 while (isDIGIT(*d)) d++;
3643 SET_NUMERIC_STANDARD();
3644 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3648 while (d >= SvPVX(sv)) {
3656 /* MKS: The original code here died if letters weren't consecutive.
3657 * at least it didn't have to worry about non-C locales. The
3658 * new code assumes that ('z'-'a')==('Z'-'A'), letters are
3659 * arranged in order (although not consecutively) and that only
3660 * [A-Za-z] are accepted by isALPHA in the C locale.
3662 if (*d != 'z' && *d != 'Z') {
3663 do { ++*d; } while (!isALPHA(*d));
3666 *(d--) -= 'z' - 'a';
3671 *(d--) -= 'z' - 'a' + 1;
3675 /* oh,oh, the number grew */
3676 SvGROW(sv, SvCUR(sv) + 2);
3678 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3687 sv_dec(register SV *sv)
3695 if (SvTHINKFIRST(sv)) {
3696 if (SvREADONLY(sv)) {
3698 if (PL_curcop != &PL_compiling)
3704 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3705 #endif /* OVERLOAD */
3711 flags = SvFLAGS(sv);
3712 if (flags & SVp_NOK) {
3714 (void)SvNOK_only(sv);
3717 if (flags & SVp_IOK) {
3718 if (SvIVX(sv) == IV_MIN)
3719 sv_setnv(sv, (double)IV_MIN - 1.0);
3721 (void)SvIOK_only(sv);
3726 if (!(flags & SVp_POK)) {
3727 if ((flags & SVTYPEMASK) < SVt_PVNV)
3728 sv_upgrade(sv, SVt_NV);
3730 (void)SvNOK_only(sv);
3733 SET_NUMERIC_STANDARD();
3734 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3737 /* Make a string that will exist for the duration of the expression
3738 * evaluation. Actually, it may have to last longer than that, but
3739 * hopefully we won't free it until it has been assigned to a
3740 * permanent location. */
3746 PL_tmps_max += (PL_tmps_max < 512) ? 128 : 512;
3747 Renew(PL_tmps_stack, PL_tmps_max, SV*);
3751 sv_mortalcopy(SV *oldstr)
3760 sv_setsv(sv,oldstr);
3761 if (++PL_tmps_ix >= PL_tmps_max)
3763 PL_tmps_stack[PL_tmps_ix] = sv;
3777 SvFLAGS(sv) = SVs_TEMP;
3778 if (++PL_tmps_ix >= PL_tmps_max)
3780 PL_tmps_stack[PL_tmps_ix] = sv;
3784 /* same thing without the copying */
3787 sv_2mortal(register SV *sv)
3792 if (SvREADONLY(sv) && SvIMMORTAL(sv))
3794 if (++PL_tmps_ix >= PL_tmps_max)
3796 PL_tmps_stack[PL_tmps_ix] = sv;
3802 newSVpv(char *s, STRLEN len)
3812 sv_setpvn(sv,s,len);
3817 newSVpvn(char *s, STRLEN len)
3825 sv_setpvn(sv,s,len);
3830 newSVpvf(const char* pat, ...)
3839 va_start(args, pat);
3840 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3873 newRV_noinc(SV *tmpRef)
3882 sv_upgrade(sv, SVt_RV);
3892 return newRV_noinc(SvREFCNT_inc(tmpRef));
3895 /* make an exact duplicate of old */
3898 newSVsv(register SV *old)
3904 if (SvTYPE(old) == SVTYPEMASK) {
3905 warn("semi-panic: attempt to dup freed string");
3923 sv_reset(register char *s, HV *stash)
3936 if (!*s) { /* reset ?? searches */
3937 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3938 pm->op_pmdynflags &= ~PMdf_USED;
3943 /* reset variables */
3945 if (!HvARRAY(stash))
3948 Zero(todo, 256, char);
3955 for ( ; i <= max; i++) {
3958 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3959 for (entry = HvARRAY(stash)[i];
3961 entry = HeNEXT(entry))
3963 if (!todo[(U8)*HeKEY(entry)])
3965 gv = (GV*)HeVAL(entry);
3967 if (SvTHINKFIRST(sv)) {
3968 if (!SvREADONLY(sv) && SvROK(sv))
3973 if (SvTYPE(sv) >= SVt_PV) {
3975 if (SvPVX(sv) != Nullch)
3982 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3984 #ifndef VMS /* VMS has no environ array */
3986 environ[0] = Nullch;
4000 switch (SvTYPE(sv)) {
4008 croak("Bad filehandle: %s", GvNAME(gv));
4012 croak(no_usym, "filehandle");
4014 return sv_2io(SvRV(sv));
4015 gv = gv_fetchpv(SvPV(sv,PL_na), FALSE, SVt_PVIO);
4021 croak("Bad filehandle: %s", SvPV(sv,PL_na));
4028 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
4034 return *gvp = Nullgv, Nullcv;
4035 switch (SvTYPE(sv)) {
4055 if (SvTYPE(cv) != SVt_PVCV)
4056 croak("Not a subroutine reference");
4064 gv = gv_fetchpv(SvPV(sv, PL_na), lref, SVt_PVCV);
4070 if (lref && !GvCVu(gv)) {
4073 tmpsv = NEWSV(704,0);
4074 gv_efullname3(tmpsv, gv, Nullch);
4075 newSUB(start_subparse(FALSE, 0),
4076 newSVOP(OP_CONST, 0, tmpsv),
4081 croak("Unable to create sub named \"%s\"", SvPV(sv,PL_na));
4088 sv_true(register SV *sv)
4095 if ((tXpv = (XPV*)SvANY(sv)) &&
4096 (*tXpv->xpv_pv > '0' ||
4097 tXpv->xpv_cur > 1 ||
4098 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
4105 return SvIVX(sv) != 0;
4108 return SvNVX(sv) != 0.0;
4110 return sv_2bool(sv);
4116 sv_iv(register SV *sv)
4124 sv_uv(register SV *sv)
4132 sv_nv(register SV *sv)
4140 sv_pvn(SV *sv, STRLEN *lp)
4146 return sv_2pv(sv, lp);
4150 sv_pvn_force(SV *sv, STRLEN *lp)
4154 if (SvREADONLY(sv)) {
4156 if (PL_curcop != &PL_compiling)
4164 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
4165 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
4172 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
4173 op_name[PL_op->op_type]);
4178 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
4183 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
4184 SvGROW(sv, len + 1);
4185 Move(s,SvPVX(sv),len,char);
4190 SvPOK_on(sv); /* validate pointer */
4192 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
4193 (unsigned long)sv,SvPVX(sv)));
4200 sv_reftype(SV *sv, int ob)
4202 if (ob && SvOBJECT(sv))
4203 return HvNAME(SvSTASH(sv));
4205 switch (SvTYPE(sv)) {
4219 case SVt_PVLV: return "LVALUE";
4220 case SVt_PVAV: return "ARRAY";
4221 case SVt_PVHV: return "HASH";
4222 case SVt_PVCV: return "CODE";
4223 case SVt_PVGV: return "GLOB";
4224 case SVt_PVFM: return "FORMAT";
4225 default: return "UNKNOWN";
4246 sv_isa(SV *sv, char *name)
4258 return strEQ(HvNAME(SvSTASH(sv)), name);
4262 newSVrv(SV *rv, char *classname)
4272 SV_CHECK_THINKFIRST(rv);
4275 #endif /* OVERLOAD */
4277 if (SvTYPE(rv) < SVt_RV)
4278 sv_upgrade(rv, SVt_RV);
4281 SvRV(rv) = SvREFCNT_inc(sv);
4285 HV* stash = gv_stashpv(classname, TRUE);
4286 (void)sv_bless(rv, stash);
4292 sv_setref_pv(SV *rv, char *classname, void *pv)
4295 sv_setsv(rv, &PL_sv_undef);
4299 sv_setiv(newSVrv(rv,classname), (IV)pv);
4304 sv_setref_iv(SV *rv, char *classname, IV iv)
4306 sv_setiv(newSVrv(rv,classname), iv);
4311 sv_setref_nv(SV *rv, char *classname, double nv)
4313 sv_setnv(newSVrv(rv,classname), nv);
4318 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4320 sv_setpvn(newSVrv(rv,classname), pv, n);
4325 sv_bless(SV *sv, HV *stash)
4330 croak("Can't bless non-reference value");
4332 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4333 if (SvREADONLY(tmpRef))
4335 if (SvOBJECT(tmpRef)) {
4336 if (SvTYPE(tmpRef) != SVt_PVIO)
4338 SvREFCNT_dec(SvSTASH(tmpRef));
4341 SvOBJECT_on(tmpRef);
4342 if (SvTYPE(tmpRef) != SVt_PVIO)
4344 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4345 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4352 #endif /* OVERLOAD */
4360 assert(SvTYPE(sv) == SVt_PVGV);
4365 SvREFCNT_dec(GvSTASH(sv));
4366 GvSTASH(sv) = Nullhv;
4368 sv_unmagic(sv, '*');
4369 Safefree(GvNAME(sv));
4371 SvFLAGS(sv) &= ~SVTYPEMASK;
4372 SvFLAGS(sv) |= SVt_PVMG;
4382 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4385 sv_2mortal(rv); /* Schedule for freeing later */
4391 sv_magic((sv), Nullsv, 't', Nullch, 0);
4397 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4398 MAGIC *mg = mg_find(sv, 't');
4407 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4408 MAGIC *mg = mg_find(sv, 't');
4409 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4416 sv_setpviv(SV *sv, IV iv)
4419 char buf[TYPE_DIGITS(UV)];
4420 char *ptr = buf + sizeof(buf);
4425 sv_setpvn(sv, "", 0);
4434 *--ptr = '0' + (uv % 10);
4436 len = (buf + sizeof(buf)) - ptr;
4437 /* taking advantage of SvCUR(sv) == 0 */
4438 SvGROW(sv, sign + len + 1);
4442 memcpy(p, ptr, len);
4445 SvCUR(sv) = p - SvPVX(sv);
4450 sv_setpviv_mg(SV *sv, IV iv)
4457 sv_setpvf(SV *sv, const char* pat, ...)
4460 va_start(args, pat);
4461 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4467 sv_setpvf_mg(SV *sv, const char* pat, ...)
4470 va_start(args, pat);
4471 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4477 sv_catpvf(SV *sv, const char* pat, ...)
4480 va_start(args, pat);
4481 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4486 sv_catpvf_mg(SV *sv, const char* pat, ...)
4489 va_start(args, pat);
4490 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4496 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4498 sv_setpvn(sv, "", 0);
4499 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4503 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4511 static char nullstr[] = "(null)";
4513 /* no matter what, this is a string now */
4514 (void)SvPV_force(sv, origlen);
4516 /* special-case "", "%s", and "%_" */
4519 if (patlen == 2 && pat[0] == '%') {
4523 char *s = va_arg(*args, char*);
4524 sv_catpv(sv, s ? s : nullstr);
4526 else if (svix < svmax)
4527 sv_catsv(sv, *svargs);
4531 sv_catsv(sv, va_arg(*args, SV*));
4534 /* See comment on '_' below */
4539 patend = (char*)pat + patlen;
4540 for (p = (char*)pat; p < patend; p = q) {
4548 bool has_precis = FALSE;
4553 STRLEN esignlen = 0;
4555 char *eptr = Nullch;
4557 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4559 static char *efloatbuf = Nullch;
4560 static STRLEN efloatsize = 0;
4572 for (q = p; q < patend && *q != '%'; ++q) ;
4574 sv_catpvn(sv, p, q - p);
4612 case '1': case '2': case '3':
4613 case '4': case '5': case '6':
4614 case '7': case '8': case '9':
4617 width = width * 10 + (*q++ - '0');
4622 i = va_arg(*args, int);
4624 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4626 width = (i < 0) ? -i : i;
4637 i = va_arg(*args, int);
4639 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4640 precis = (i < 0) ? 0 : i;
4646 precis = precis * 10 + (*q++ - '0');
4655 #if 0 /* when quads have better support within Perl */
4656 if (*(q + 1) == 'l') {
4683 uv = va_arg(*args, int);
4685 uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4687 eptr = (char*)utf8buf;
4688 elen = uv_to_utf8((U8*)eptr, uv) - utf8buf;
4692 c = va_arg(*args, int);
4694 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4701 eptr = va_arg(*args, char*);
4703 elen = strlen(eptr);
4706 elen = sizeof nullstr - 1;
4709 else if (svix < svmax) {
4710 eptr = SvPVx(svargs[svix++], elen);
4712 if (has_precis && precis < elen) {
4714 sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */
4717 if (width) { /* fudge width (can't fudge elen) */
4718 width += elen - sv_len_utf8(svargs[svix - 1]);
4726 * The "%_" hack might have to be changed someday,
4727 * if ISO or ANSI decide to use '_' for something.
4728 * So we keep it hidden from users' code.
4732 eptr = SvPVx(va_arg(*args, SV*), elen);
4735 if (has_precis && elen > precis)
4743 uv = (UV)va_arg(*args, void*);
4745 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4756 case 'h': iv = (short)va_arg(*args, int); break;
4757 default: iv = va_arg(*args, int); break;
4758 case 'l': iv = va_arg(*args, long); break;
4759 case 'V': iv = va_arg(*args, IV); break;
4763 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4765 case 'h': iv = (short)iv; break;
4766 default: iv = (int)iv; break;
4767 case 'l': iv = (long)iv; break;
4774 esignbuf[esignlen++] = plus;
4778 esignbuf[esignlen++] = '-';
4804 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4805 default: uv = va_arg(*args, unsigned); break;
4806 case 'l': uv = va_arg(*args, unsigned long); break;
4807 case 'V': uv = va_arg(*args, UV); break;
4811 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4813 case 'h': uv = (unsigned short)uv; break;
4814 default: uv = (unsigned)uv; break;
4815 case 'l': uv = (unsigned long)uv; break;
4821 eptr = ebuf + sizeof ebuf;
4827 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4833 esignbuf[esignlen++] = '0';
4834 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4840 *--eptr = '0' + dig;
4842 if (alt && *eptr != '0')
4845 default: /* it had better be ten or less */
4848 *--eptr = '0' + dig;
4849 } while (uv /= base);
4852 elen = (ebuf + sizeof ebuf) - eptr;
4855 zeros = precis - elen;
4856 else if (precis == 0 && elen == 1 && *eptr == '0')
4861 /* FLOATING POINT */
4864 c = 'f'; /* maybe %F isn't supported here */
4870 /* This is evil, but floating point is even more evil */
4873 nv = va_arg(*args, double);
4875 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4878 if (c != 'e' && c != 'E') {
4880 (void)frexp(nv, &i);
4881 if (i == PERL_INT_MIN)
4882 die("panic: frexp");
4884 need = BIT_DIGITS(i);
4886 need += has_precis ? precis : 6; /* known default */
4890 need += 20; /* fudge factor */
4891 if (efloatsize < need) {
4892 Safefree(efloatbuf);
4893 efloatsize = need + 20; /* more fudge */
4894 New(906, efloatbuf, efloatsize, char);
4897 eptr = ebuf + sizeof ebuf;
4902 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4907 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4919 (void)sprintf(efloatbuf, eptr, nv);
4922 elen = strlen(efloatbuf);
4926 * User-defined locales may include arbitrary characters.
4927 * And, unfortunately, some system may alloc the "C" locale
4928 * to be overridden by a malicious user.
4931 *used_locale = TRUE;
4932 #endif /* LC_NUMERIC */
4939 i = SvCUR(sv) - origlen;
4942 case 'h': *(va_arg(*args, short*)) = i; break;
4943 default: *(va_arg(*args, int*)) = i; break;
4944 case 'l': *(va_arg(*args, long*)) = i; break;
4945 case 'V': *(va_arg(*args, IV*)) = i; break;
4948 else if (svix < svmax)
4949 sv_setuv(svargs[svix++], (UV)i);
4950 continue; /* not "break" */
4956 if (!args && ckWARN(WARN_PRINTF) &&
4957 (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) {
4958 SV *msg = sv_newmortal();
4959 sv_setpvf(msg, "Invalid conversion in %s: ",
4960 (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf");
4962 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4965 sv_catpv(msg, "end of string");
4966 warner(WARN_PRINTF, "%_", msg); /* yes, this is reentrant */
4969 /* output mangled stuff ... */
4975 /* ... right here, because formatting flags should not apply */
4976 SvGROW(sv, SvCUR(sv) + elen + 1);
4978 memcpy(p, eptr, elen);
4981 SvCUR(sv) = p - SvPVX(sv);
4982 continue; /* not "break" */
4985 have = esignlen + zeros + elen;
4986 need = (have > width ? have : width);
4989 SvGROW(sv, SvCUR(sv) + need + 1);
4991 if (esignlen && fill == '0') {
4992 for (i = 0; i < esignlen; i++)
4996 memset(p, fill, gap);
4999 if (esignlen && fill != '0') {
5000 for (i = 0; i < esignlen; i++)
5004 for (i = zeros; i; i--)
5008 memcpy(p, eptr, elen);
5012 memset(p, ' ', gap);
5016 SvCUR(sv) = p - SvPVX(sv);
5024 SV *d = sv_newmortal();
5030 PerlIO_printf(Perl_debug_log, "SV = 0\n");
5034 flags = SvFLAGS(sv);
5037 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
5038 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
5039 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
5040 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
5041 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
5042 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
5043 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
5044 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
5045 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
5046 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
5048 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
5049 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
5050 if (flags & SVf_POK) sv_catpv(d, "POK,");
5051 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
5052 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
5053 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
5054 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
5057 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
5058 #endif /* OVERLOAD */
5059 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
5060 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
5061 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
5062 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
5067 if (CvANON(sv)) sv_catpv(d, "ANON,");
5068 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
5069 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
5070 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
5071 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
5074 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
5075 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
5078 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
5079 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
5080 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
5081 if (GvIMPORTED(sv)) {
5082 sv_catpv(d, "IMPORT");
5083 if (GvIMPORTED(sv) == GVf_IMPORTED)
5084 sv_catpv(d, "ALL,");
5087 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
5088 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
5089 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
5090 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
5095 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
5096 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
5100 if (*(SvEND(d) - 1) == ',')
5101 SvPVX(d)[--SvCUR(d)] = '\0';
5105 PerlIO_printf(Perl_debug_log, "SV = ");
5108 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
5111 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
5114 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
5117 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
5120 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
5123 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
5126 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
5129 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
5132 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
5135 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
5138 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
5141 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
5144 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
5147 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
5150 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
5153 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
5156 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
5159 if (type >= SVt_PVIV || type == SVt_IV)
5160 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
5161 if (type >= SVt_PVNV || type == SVt_NV) {
5162 SET_NUMERIC_STANDARD();
5163 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
5166 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
5172 if (type <= SVt_PVLV) {
5174 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
5175 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
5177 PerlIO_printf(Perl_debug_log, " PV = 0\n");
5179 if (type >= SVt_PVMG) {
5181 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
5184 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
5188 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
5189 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
5190 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
5191 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
5192 sv_dump(LvTARG(sv));
5195 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
5196 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
5197 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
5198 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
5199 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
5200 flags = AvFLAGS(sv);
5202 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
5203 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
5204 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
5205 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
5206 SvCUR(d) ? SvPVX(d) + 1 : "");
5209 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
5210 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
5211 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
5212 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
5213 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
5214 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5216 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5218 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5222 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,PL_na));
5225 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5226 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5227 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5228 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5229 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5230 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5231 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5232 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5234 PerlIO_printf(Perl_debug_log, "\n");
5236 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5237 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5238 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5239 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5241 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5242 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5243 #endif /* USE_THREADS */
5244 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5245 (unsigned long)CvFLAGS(sv));
5246 if (type == SVt_PVFM)
5247 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5250 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5251 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5252 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5253 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5254 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5255 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5256 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5257 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5258 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5259 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5260 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5261 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5262 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5263 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5264 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5265 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5266 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5269 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5270 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5271 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5272 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5273 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5274 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5275 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5276 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5277 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5278 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5279 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5280 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5281 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5282 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5283 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5284 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
5287 #endif /* DEBUGGING */