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 */
39 #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) && !defined(__QNX__)
44 #define FCALL this->*f
45 #define VTBL this->*vtbl
47 #else /* !PERL_OBJECT */
49 static IV asIV _((SV* sv));
50 static UV asUV _((SV* sv));
51 static SV *more_sv _((void));
52 static XPVIV *more_xiv _((void));
53 static XPVNV *more_xnv _((void));
54 static XPV *more_xpv _((void));
55 static XRV *more_xrv _((void));
56 static XPVIV *new_xiv _((void));
57 static XPVNV *new_xnv _((void));
58 static XPV *new_xpv _((void));
59 static XRV *new_xrv _((void));
60 static void del_xiv _((XPVIV* p));
61 static void del_xnv _((XPVNV* p));
62 static void del_xpv _((XPV* p));
63 static void del_xrv _((XRV* p));
64 static void sv_mortalgrow _((void));
65 static void sv_unglob _((SV* sv));
66 static void sv_check_thinkfirst _((SV *sv));
69 static void *my_safemalloc(MEM_SIZE size);
72 typedef void (*SVFUNC) _((SV*));
76 #endif /* PERL_OBJECT */
78 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv)
85 (p) = (SV*)safemalloc(sizeof(SV)); \
94 Safefree((char*)(p)); \
101 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
103 #define REG_REPLACE(sv,a,b) \
105 void* p = sv->sv_any; \
106 I32 h = REGHASH(sv, regsize); \
108 while (registry[i] != (a)) { \
109 if (++i >= regsize) \
112 die("SV registry bug"); \
117 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
118 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
124 if (sv_count >= (regsize >> 1))
126 SV **oldreg = registry;
127 I32 oldsize = regsize;
129 regsize = regsize ? ((regsize << 2) + 1) : 2037;
130 Newz(707, registry, regsize, SV*);
135 for (i = 0; i < oldsize; ++i) {
136 SV* oldsv = oldreg[i];
162 for (i = 0; i < regsize; ++i) {
163 SV* sv = registry[i];
170 sv_add_arena(ptr, size, flags)
175 if (!(flags & SVf_FAKE))
182 * "A time to plant, and a time to uproot what was planted..."
185 #define plant_SV(p) \
187 SvANY(p) = (void *)sv_root; \
188 SvFLAGS(p) = SVTYPEMASK; \
193 /* sv_mutex must be held while calling uproot_SV() */
194 #define uproot_SV(p) \
197 sv_root = (SV*)SvANY(p); \
201 #define new_SV(p) do { \
212 #define del_SV(p) do { \
229 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
231 svend = &sva[SvREFCNT(sva)];
232 if (p >= sv && p < svend)
236 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
243 #else /* ! DEBUGGING */
245 #define del_SV(p) plant_SV(p)
247 #endif /* DEBUGGING */
250 sv_add_arena(char *ptr, U32 size, U32 flags)
255 Zero(sva, size, char);
257 /* The first SV in an arena isn't an SV. */
258 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
259 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
260 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
265 svend = &sva[SvREFCNT(sva) - 1];
268 SvANY(sv) = (void *)(SV*)(sv + 1);
269 SvFLAGS(sv) = SVTYPEMASK;
273 SvFLAGS(sv) = SVTYPEMASK;
276 /* sv_mutex must be held while calling more_sv() */
283 sv_add_arena(nice_chunk, nice_chunk_size, 0);
287 char *chunk; /* must use New here to match call to */
288 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
289 sv_add_arena(chunk, 1008, 0);
302 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
303 svend = &sva[SvREFCNT(sva)];
304 for (sv = sva + 1; sv < svend; ++sv) {
305 if (SvTYPE(sv) != SVTYPEMASK)
314 do_report_used(SV *sv)
316 if (SvTYPE(sv) != SVTYPEMASK) {
317 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
318 PerlIO_printf(PerlIO_stderr(), "****\n");
326 visit(FUNC_NAME_TO_PTR(do_report_used));
330 do_clean_objs(SV *sv)
334 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
335 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
341 /* XXX Might want to check arrays, etc. */
344 #ifndef DISABLE_DESTRUCTOR_KLUDGE
346 do_clean_named_objs(SV *sv)
348 if (SvTYPE(sv) == SVt_PVGV) {
349 if ( SvOBJECT(GvSV(sv)) ||
350 GvAV(sv) && SvOBJECT(GvAV(sv)) ||
351 GvHV(sv) && SvOBJECT(GvHV(sv)) ||
352 GvIO(sv) && SvOBJECT(GvIO(sv)) ||
353 GvCV(sv) && SvOBJECT(GvCV(sv)) )
355 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
359 do_clean_objs(GvSV(sv));
367 in_clean_objs = TRUE;
368 #ifndef DISABLE_DESTRUCTOR_KLUDGE
369 visit(FUNC_NAME_TO_PTR(do_clean_named_objs));
371 visit(FUNC_NAME_TO_PTR(do_clean_objs));
372 in_clean_objs = FALSE;
378 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
379 SvFLAGS(sv) |= SVf_BREAK;
387 visit(FUNC_NAME_TO_PTR(do_clean_all));
388 in_clean_all = FALSE;
397 /* Free arenas here, but be careful about fake ones. (We assume
398 contiguity of the fake ones with the corresponding real ones.) */
400 for (sva = sv_arenaroot; sva; sva = svanext) {
401 svanext = (SV*) SvANY(sva);
402 while (svanext && SvFAKE(svanext))
403 svanext = (SV*) SvANY(svanext);
406 Safefree((void *)sva);
410 Safefree(nice_chunk);
424 * See comment in more_xiv() -- RAM.
426 xiv_root = (IV**)*xiv;
427 return (XPVIV*)((char*)xiv - sizeof(XPV));
435 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
436 *xiv = (IV *)xiv_root;
444 register IV** xivend;
446 New(705, ptr, 1008/sizeof(XPV), XPV);
447 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
448 xiv_arenaroot = ptr; /* to keep Purify happy */
451 xivend = &xiv[1008 / sizeof(IV *) - 1];
452 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
454 while (xiv < xivend) {
455 *xiv = (IV *)(xiv + 1);
468 xnv_root = *(double**)xnv;
469 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
477 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
478 *(double**)xnv = 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);
505 xrv_root = (XRV*)xrv->xrv_rv;
514 p->xrv_rv = (SV*)xrv_root;
522 register XRV* xrvend;
523 New(712, xrv_root, 1008/sizeof(XRV), XRV);
525 xrvend = &xrv[1008 / sizeof(XRV) - 1];
526 while (xrv < xrvend) {
527 xrv->xrv_rv = (SV*)(xrv + 1);
540 xpv_root = (XPV*)xpv->xpv_pv;
549 p->xpv_pv = (char*)xpv_root;
557 register XPV* xpvend;
558 New(713, xpv_root, 1008/sizeof(XPV), XPV);
560 xpvend = &xpv[1008 / sizeof(XPV) - 1];
561 while (xpv < xpvend) {
562 xpv->xpv_pv = (char*)(xpv + 1);
570 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
571 #define del_XIV(p) Safefree((char*)p)
573 #define new_XIV() (void*)new_xiv()
574 #define del_XIV(p) del_xiv((XPVIV*) p)
578 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
579 #define del_XNV(p) Safefree((char*)p)
581 #define new_XNV() (void*)new_xnv()
582 #define del_XNV(p) del_xnv((XPVNV*) p)
586 #define new_XRV() (void*)safemalloc(sizeof(XRV))
587 #define del_XRV(p) Safefree((char*)p)
589 #define new_XRV() (void*)new_xrv()
590 #define del_XRV(p) del_xrv((XRV*) p)
594 #define new_XPV() (void*)safemalloc(sizeof(XPV))
595 #define del_XPV(p) Safefree((char*)p)
597 #define new_XPV() (void*)new_xpv()
598 #define del_XPV(p) del_xpv((XPV *)p)
602 # define my_safemalloc(s) safemalloc(s)
603 # define my_safefree(s) free(s)
606 my_safemalloc(MEM_SIZE size)
609 New(717, p, size, char);
612 # define my_safefree(s) Safefree(s)
615 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
616 #define del_XPVIV(p) my_safefree((char*)p)
618 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
619 #define del_XPVNV(p) my_safefree((char*)p)
621 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
622 #define del_XPVMG(p) my_safefree((char*)p)
624 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
625 #define del_XPVLV(p) my_safefree((char*)p)
627 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
628 #define del_XPVAV(p) my_safefree((char*)p)
630 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
631 #define del_XPVHV(p) my_safefree((char*)p)
633 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
634 #define del_XPVCV(p) my_safefree((char*)p)
636 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
637 #define del_XPVGV(p) my_safefree((char*)p)
639 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
640 #define del_XPVBM(p) my_safefree((char*)p)
642 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
643 #define del_XPVFM(p) my_safefree((char*)p)
645 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
646 #define del_XPVIO(p) my_safefree((char*)p)
649 sv_upgrade(register SV *sv, U32 mt)
659 if (SvTYPE(sv) == mt)
665 switch (SvTYPE(sv)) {
680 nv = (double)SvIVX(sv);
686 else if (mt < SVt_PVIV)
703 pv = (char*)SvRV(sv);
707 nv = (double)(unsigned long)pv;
723 else if (mt == SVt_NV)
734 del_XPVIV(SvANY(sv));
744 del_XPVNV(SvANY(sv));
754 del_XPVMG(SvANY(sv));
757 croak("Can't upgrade that kind of scalar");
762 croak("Can't upgrade to undef");
764 SvANY(sv) = new_XIV();
768 SvANY(sv) = new_XNV();
772 SvANY(sv) = new_XRV();
776 SvANY(sv) = new_XPV();
782 SvANY(sv) = new_XPVIV();
792 SvANY(sv) = new_XPVNV();
800 SvANY(sv) = new_XPVMG();
810 SvANY(sv) = new_XPVLV();
824 SvANY(sv) = new_XPVAV();
839 SvANY(sv) = new_XPVHV();
855 SvANY(sv) = new_XPVCV();
856 Zero(SvANY(sv), 1, XPVCV);
866 SvANY(sv) = new_XPVGV();
881 SvANY(sv) = new_XPVBM();
894 SvANY(sv) = new_XPVFM();
895 Zero(SvANY(sv), 1, XPVFM);
905 SvANY(sv) = new_XPVIO();
906 Zero(SvANY(sv), 1, XPVIO);
917 SvFLAGS(sv) &= ~SVTYPEMASK;
926 SV *t = sv_newmortal();
936 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
940 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
941 if (sv == &sv_undef) {
942 sv_catpv(t, "SV_UNDEF");
943 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
944 SVs_GMG|SVs_SMG|SVs_RMG)) &&
948 else if (sv == &sv_no) {
949 sv_catpv(t, "SV_NO");
950 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
951 SVs_GMG|SVs_SMG|SVs_RMG)) &&
952 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
959 sv_catpv(t, "SV_YES");
960 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
961 SVs_GMG|SVs_SMG|SVs_RMG)) &&
962 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
965 SvPVX(sv) && *SvPVX(sv) == '1' &&
971 else if (SvREFCNT(sv) == 0) {
977 if (SvCUR(t) + unref > 10) {
978 SvCUR(t) = unref + 3;
986 switch (SvTYPE(sv)) {
988 sv_catpv(t, "FREED");
992 sv_catpv(t, "UNDEF");
1007 sv_catpv(t, "PVIV");
1010 sv_catpv(t, "PVNV");
1013 sv_catpv(t, "PVMG");
1016 sv_catpv(t, "PVLV");
1026 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1028 sv_catpv(t, "CV()");
1046 sv_catpv(t, "(null)");
1048 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1050 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1052 else if (SvNOKp(sv)) {
1053 SET_NUMERIC_STANDARD();
1054 sv_catpvf(t, "(%g)",SvNVX(sv));
1056 else if (SvIOKp(sv))
1057 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1067 #else /* DEBUGGING */
1069 #endif /* DEBUGGING */
1073 sv_backoff(register SV *sv)
1077 char *s = SvPVX(sv);
1078 SvLEN(sv) += SvIVX(sv);
1079 SvPVX(sv) -= SvIVX(sv);
1081 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1083 SvFLAGS(sv) &= ~SVf_OOK;
1089 sv_grow(register SV *sv, register I32 newlen)
1091 sv_grow(SV* sv, unsigned long newlen)
1096 #ifdef HAS_64K_LIMIT
1097 if (newlen >= 0x10000) {
1098 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1101 #endif /* HAS_64K_LIMIT */
1104 if (SvTYPE(sv) < SVt_PV) {
1105 sv_upgrade(sv, SVt_PV);
1108 else if (SvOOK(sv)) { /* pv is offset? */
1111 if (newlen > SvLEN(sv))
1112 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1113 #ifdef HAS_64K_LIMIT
1114 if (newlen >= 0x10000)
1120 if (newlen > SvLEN(sv)) { /* need more room? */
1122 Renew(s,newlen,char);
1124 New(703,s,newlen,char);
1126 SvLEN_set(sv, newlen);
1132 sv_setiv(register SV *sv, IV i)
1134 SV_CHECK_THINKFIRST(sv);
1135 switch (SvTYPE(sv)) {
1137 sv_upgrade(sv, SVt_IV);
1140 sv_upgrade(sv, SVt_PVNV);
1144 sv_upgrade(sv, SVt_PVIV);
1160 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1161 op_desc[op->op_type]);
1164 (void)SvIOK_only(sv); /* validate number */
1170 sv_setiv_mg(register SV *sv, IV i)
1177 sv_setuv(register SV *sv, UV u)
1182 sv_setnv(sv, (double)u);
1186 sv_setuv_mg(register SV *sv, UV u)
1193 sv_setnv(register SV *sv, double num)
1195 SV_CHECK_THINKFIRST(sv);
1196 switch (SvTYPE(sv)) {
1199 sv_upgrade(sv, SVt_NV);
1204 sv_upgrade(sv, SVt_PVNV);
1211 (void)SvOOK_off(sv);
1226 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1227 op_name[op->op_type]);
1231 (void)SvNOK_only(sv); /* validate number */
1236 sv_setnv_mg(register SV *sv, double num)
1243 not_a_number(SV *sv)
1249 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1250 /* each *s can expand to 4 chars + "...\0",
1251 i.e. need room for 8 chars */
1253 for (s = SvPVX(sv); *s && d < limit; s++) {
1255 if (ch & 128 && !isPRINT_LC(ch)) {
1264 else if (ch == '\r') {
1268 else if (ch == '\f') {
1272 else if (ch == '\\') {
1276 else if (isPRINT_LC(ch))
1291 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1292 op_name[op->op_type]);
1294 warn("Argument \"%s\" isn't numeric", tmpbuf);
1298 sv_2iv(register SV *sv)
1302 if (SvGMAGICAL(sv)) {
1307 if (SvNVX(sv) < 0.0)
1308 return I_V(SvNVX(sv));
1310 return (IV) U_V(SvNVX(sv));
1312 if (SvPOKp(sv) && SvLEN(sv))
1315 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1323 if (SvTHINKFIRST(sv)) {
1327 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1328 return SvIV(tmpstr);
1329 #endif /* OVERLOAD */
1330 return (IV)SvRV(sv);
1332 if (SvREADONLY(sv)) {
1334 if (SvNVX(sv) < 0.0)
1335 return I_V(SvNVX(sv));
1337 return (IV) U_V(SvNVX(sv));
1339 if (SvPOKp(sv) && SvLEN(sv))
1346 switch (SvTYPE(sv)) {
1348 sv_upgrade(sv, SVt_IV);
1351 sv_upgrade(sv, SVt_PVIV);
1354 sv_upgrade(sv, SVt_PVNV);
1359 if (SvNVX(sv) < 0.0)
1360 SvIVX(sv) = I_V(SvNVX(sv));
1362 SvUVX(sv) = U_V(SvNVX(sv));
1364 else if (SvPOKp(sv) && SvLEN(sv)) {
1366 SvIVX(sv) = asIV(sv);
1370 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1374 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1375 (unsigned long)sv,(long)SvIVX(sv)));
1380 sv_2uv(register SV *sv)
1384 if (SvGMAGICAL(sv)) {
1389 return U_V(SvNVX(sv));
1390 if (SvPOKp(sv) && SvLEN(sv))
1393 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1401 if (SvTHINKFIRST(sv)) {
1405 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1406 return SvUV(tmpstr);
1407 #endif /* OVERLOAD */
1408 return (UV)SvRV(sv);
1410 if (SvREADONLY(sv)) {
1412 return U_V(SvNVX(sv));
1414 if (SvPOKp(sv) && SvLEN(sv))
1421 switch (SvTYPE(sv)) {
1423 sv_upgrade(sv, SVt_IV);
1426 sv_upgrade(sv, SVt_PVIV);
1429 sv_upgrade(sv, SVt_PVNV);
1434 SvUVX(sv) = U_V(SvNVX(sv));
1436 else if (SvPOKp(sv) && SvLEN(sv)) {
1438 SvUVX(sv) = asUV(sv);
1441 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1448 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1449 (unsigned long)sv,SvUVX(sv)));
1454 sv_2nv(register SV *sv)
1458 if (SvGMAGICAL(sv)) {
1462 if (SvPOKp(sv) && SvLEN(sv)) {
1463 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1465 SET_NUMERIC_STANDARD();
1466 return atof(SvPVX(sv));
1469 return (double)SvIVX(sv);
1471 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1479 if (SvTHINKFIRST(sv)) {
1483 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1484 return SvNV(tmpstr);
1485 #endif /* OVERLOAD */
1486 return (double)(unsigned long)SvRV(sv);
1488 if (SvREADONLY(sv)) {
1489 if (SvPOKp(sv) && SvLEN(sv)) {
1490 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1492 SET_NUMERIC_STANDARD();
1493 return atof(SvPVX(sv));
1496 return (double)SvIVX(sv);
1502 if (SvTYPE(sv) < SVt_NV) {
1503 if (SvTYPE(sv) == SVt_IV)
1504 sv_upgrade(sv, SVt_PVNV);
1506 sv_upgrade(sv, SVt_NV);
1507 DEBUG_c(SET_NUMERIC_STANDARD());
1508 DEBUG_c(PerlIO_printf(Perl_debug_log,
1509 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1511 else if (SvTYPE(sv) < SVt_PVNV)
1512 sv_upgrade(sv, SVt_PVNV);
1514 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1516 SvNVX(sv) = (double)SvIVX(sv);
1518 else if (SvPOKp(sv) && SvLEN(sv)) {
1519 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1521 SET_NUMERIC_STANDARD();
1522 SvNVX(sv) = atof(SvPVX(sv));
1526 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1531 DEBUG_c(SET_NUMERIC_STANDARD());
1532 DEBUG_c(PerlIO_printf(Perl_debug_log,
1533 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1540 I32 numtype = looks_like_number(sv);
1544 return atol(SvPVX(sv));
1545 if (!numtype && dowarn)
1547 SET_NUMERIC_STANDARD();
1548 d = atof(SvPVX(sv));
1558 I32 numtype = looks_like_number(sv);
1562 return strtoul(SvPVX(sv), Null(char**), 10);
1564 if (!numtype && dowarn)
1566 SET_NUMERIC_STANDARD();
1567 return U_V(atof(SvPVX(sv)));
1571 looks_like_number(SV *sv)
1574 register char *send;
1575 register char *sbegin;
1583 else if (SvPOKp(sv))
1584 sbegin = SvPV(sv, len);
1587 send = sbegin + len;
1592 if (*s == '+' || *s == '-')
1595 /* next must be digit or '.' */
1599 } while (isDIGIT(*s));
1602 while (isDIGIT(*s)) /* optional digits after "." */
1606 else if (*s == '.') {
1608 /* no digits before '.' means we need digits after it */
1612 } while (isDIGIT(*s));
1621 * we return 1 if the number can be converted to _integer_ with atol()
1622 * and 2 if you need (int)atof().
1626 /* we can have an optional exponent part */
1627 if (*s == 'e' || *s == 'E') {
1630 if (*s == '+' || *s == '-')
1635 } while (isDIGIT(*s));
1644 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1650 sv_2pv(register SV *sv, STRLEN *lp)
1655 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1661 if (SvGMAGICAL(sv)) {
1668 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1673 SET_NUMERIC_STANDARD();
1674 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1679 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1688 if (SvTHINKFIRST(sv)) {
1692 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1693 return SvPV(tmpstr,*lp);
1694 #endif /* OVERLOAD */
1699 switch (SvTYPE(sv)) {
1708 case SVt_PVMG: s = "SCALAR"; break;
1709 case SVt_PVLV: s = "LVALUE"; break;
1710 case SVt_PVAV: s = "ARRAY"; break;
1711 case SVt_PVHV: s = "HASH"; break;
1712 case SVt_PVCV: s = "CODE"; break;
1713 case SVt_PVGV: s = "GLOB"; break;
1714 case SVt_PVFM: s = "FORMAT"; break;
1715 case SVt_PVIO: s = "IO"; break;
1716 default: s = "UNKNOWN"; break;
1720 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1723 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1729 if (SvREADONLY(sv)) {
1731 SET_NUMERIC_STANDARD();
1732 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1737 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1747 (void)SvUPGRADE(sv, SVt_PV);
1749 if (SvTYPE(sv) < SVt_PVNV)
1750 sv_upgrade(sv, SVt_PVNV);
1753 olderrno = errno; /* some Xenix systems wipe out errno here */
1755 if (SvNVX(sv) == 0.0)
1756 (void)strcpy(s,"0");
1760 SET_NUMERIC_STANDARD();
1761 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1764 #ifdef FIXNEGATIVEZERO
1765 if (*s == '-' && s[1] == '0' && !s[2])
1774 else if (SvIOKp(sv)) {
1775 U32 oldIOK = SvIOK(sv);
1776 if (SvTYPE(sv) < SVt_PVIV)
1777 sv_upgrade(sv, SVt_PVIV);
1778 olderrno = errno; /* some Xenix systems wipe out errno here */
1779 sv_setpviv(sv, SvIVX(sv));
1789 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1794 *lp = s - SvPVX(sv);
1797 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1801 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1802 /* Sneaky stuff here */
1806 tsv = newSVpv(tmpbuf, 0);
1822 len = strlen(tmpbuf);
1824 #ifdef FIXNEGATIVEZERO
1825 if (len == 2 && t[0] == '-' && t[1] == '0') {
1830 (void)SvUPGRADE(sv, SVt_PV);
1832 s = SvGROW(sv, len + 1);
1840 /* This function is only called on magical items */
1842 sv_2bool(register SV *sv)
1854 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1855 return SvTRUE(tmpsv);
1857 #endif /* OVERLOAD */
1858 return SvRV(sv) != 0;
1861 register XPV* Xpvtmp;
1862 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1863 (*Xpvtmp->xpv_pv > '0' ||
1864 Xpvtmp->xpv_cur > 1 ||
1865 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1872 return SvIVX(sv) != 0;
1875 return SvNVX(sv) != 0.0;
1882 /* Note: sv_setsv() should not be called with a source string that needs
1883 * to be reused, since it may destroy the source string if it is marked
1888 sv_setsv(SV *dstr, register SV *sstr)
1891 register U32 sflags;
1897 SV_CHECK_THINKFIRST(dstr);
1900 stype = SvTYPE(sstr);
1901 dtype = SvTYPE(dstr);
1903 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1904 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1905 sv_setpvn(dstr, "", 0);
1906 (void)SvPOK_only(dstr);
1907 dtype = SvTYPE(dstr);
1912 #endif /* OVERLOAD */
1913 /* There's a lot of redundancy below but we're going for speed here */
1917 if (dtype != SVt_PVGV) {
1918 (void)SvOK_off(dstr);
1923 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1925 sv_upgrade(dstr, SVt_IV);
1926 else if (dtype == SVt_NV)
1927 sv_upgrade(dstr, SVt_PVNV);
1929 sv_upgrade(dstr, SVt_PVIV);
1933 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1935 sv_upgrade(dstr, SVt_NV);
1937 sv_upgrade(dstr, SVt_PVNV);
1942 sv_upgrade(dstr, SVt_RV);
1943 else if (dtype == SVt_PVGV &&
1944 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1947 if (curcop->cop_stash != GvSTASH(dstr))
1948 GvIMPORTED_on(dstr);
1958 sv_upgrade(dstr, SVt_PV);
1961 if (dtype < SVt_PVIV)
1962 sv_upgrade(dstr, SVt_PVIV);
1965 if (dtype < SVt_PVNV)
1966 sv_upgrade(dstr, SVt_PVNV);
1973 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1974 op_name[op->op_type]);
1976 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1980 if (dtype <= SVt_PVGV) {
1982 if (dtype != SVt_PVGV) {
1983 char *name = GvNAME(sstr);
1984 STRLEN len = GvNAMELEN(sstr);
1985 sv_upgrade(dstr, SVt_PVGV);
1986 sv_magic(dstr, dstr, '*', name, len);
1987 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
1988 GvNAME(dstr) = savepvn(name, len);
1989 GvNAMELEN(dstr) = len;
1990 SvFAKE_on(dstr); /* can coerce to non-glob */
1992 /* ahem, death to those who redefine active sort subs */
1993 else if (curstackinfo->si_type == SI_SORT
1994 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1995 croak("Can't redefine active sort subroutine %s",
1997 (void)SvOK_off(dstr);
1998 GvINTRO_off(dstr); /* one-shot flag */
2000 GvGP(dstr) = gp_ref(GvGP(sstr));
2002 if (curcop->cop_stash != GvSTASH(dstr))
2003 GvIMPORTED_on(dstr);
2010 if (SvGMAGICAL(sstr)) {
2012 if (SvTYPE(sstr) != stype) {
2013 stype = SvTYPE(sstr);
2014 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2018 if (stype == SVt_PVLV)
2019 SvUPGRADE(dstr, SVt_PVNV);
2021 SvUPGRADE(dstr, stype);
2024 sflags = SvFLAGS(sstr);
2026 if (sflags & SVf_ROK) {
2027 if (dtype >= SVt_PV) {
2028 if (dtype == SVt_PVGV) {
2030 SV *sref = SvREFCNT_inc(SvRV(sstr));
2032 int intro = GvINTRO(dstr);
2036 GvGP(dstr)->gp_refcnt--;
2037 GvINTRO_off(dstr); /* one-shot flag */
2038 Newz(602,gp, 1, GP);
2039 GvGP(dstr) = gp_ref(gp);
2040 GvSV(dstr) = NEWSV(72,0);
2041 GvLINE(dstr) = curcop->cop_line;
2042 GvEGV(dstr) = (GV*)dstr;
2045 switch (SvTYPE(sref)) {
2048 SAVESPTR(GvAV(dstr));
2050 dref = (SV*)GvAV(dstr);
2051 GvAV(dstr) = (AV*)sref;
2052 if (curcop->cop_stash != GvSTASH(dstr))
2053 GvIMPORTED_AV_on(dstr);
2057 SAVESPTR(GvHV(dstr));
2059 dref = (SV*)GvHV(dstr);
2060 GvHV(dstr) = (HV*)sref;
2061 if (curcop->cop_stash != GvSTASH(dstr))
2062 GvIMPORTED_HV_on(dstr);
2066 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2067 SvREFCNT_dec(GvCV(dstr));
2068 GvCV(dstr) = Nullcv;
2069 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2072 SAVESPTR(GvCV(dstr));
2075 dref = (SV*)GvCV(dstr);
2076 if (GvCV(dstr) != (CV*)sref) {
2077 CV* cv = GvCV(dstr);
2079 if (!GvCVGEN((GV*)dstr) &&
2080 (CvROOT(cv) || CvXSUB(cv)))
2082 SV *const_sv = cv_const_sv(cv);
2083 bool const_changed = TRUE;
2085 const_changed = sv_cmp(const_sv,
2086 op_const_sv(CvSTART((CV*)sref),
2088 /* ahem, death to those who redefine
2089 * active sort subs */
2090 if (curstackinfo->si_type == SI_SORT &&
2091 sortcop == CvSTART(cv))
2093 "Can't redefine active sort subroutine %s",
2094 GvENAME((GV*)dstr));
2095 if (dowarn || (const_changed && const_sv)) {
2096 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2097 && HvNAME(GvSTASH(CvGV(cv)))
2098 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2101 "Constant subroutine %s redefined"
2102 : "Subroutine %s redefined",
2103 GvENAME((GV*)dstr));
2106 cv_ckproto(cv, (GV*)dstr,
2107 SvPOK(sref) ? SvPVX(sref) : Nullch);
2109 GvCV(dstr) = (CV*)sref;
2110 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2111 GvASSUMECV_on(dstr);
2114 if (curcop->cop_stash != GvSTASH(dstr))
2115 GvIMPORTED_CV_on(dstr);
2119 SAVESPTR(GvIOp(dstr));
2121 dref = (SV*)GvIOp(dstr);
2122 GvIOp(dstr) = (IO*)sref;
2126 SAVESPTR(GvSV(dstr));
2128 dref = (SV*)GvSV(dstr);
2130 if (curcop->cop_stash != GvSTASH(dstr))
2131 GvIMPORTED_SV_on(dstr);
2142 (void)SvOOK_off(dstr); /* backoff */
2143 Safefree(SvPVX(dstr));
2144 SvLEN(dstr)=SvCUR(dstr)=0;
2147 (void)SvOK_off(dstr);
2148 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2150 if (sflags & SVp_NOK) {
2152 SvNVX(dstr) = SvNVX(sstr);
2154 if (sflags & SVp_IOK) {
2155 (void)SvIOK_on(dstr);
2156 SvIVX(dstr) = SvIVX(sstr);
2159 if (SvAMAGIC(sstr)) {
2162 #endif /* OVERLOAD */
2164 else if (sflags & SVp_POK) {
2167 * Check to see if we can just swipe the string. If so, it's a
2168 * possible small lose on short strings, but a big win on long ones.
2169 * It might even be a win on short strings if SvPVX(dstr)
2170 * has to be allocated and SvPVX(sstr) has to be freed.
2173 if (SvTEMP(sstr) && /* slated for free anyway? */
2174 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2175 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2177 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2179 SvFLAGS(dstr) &= ~SVf_OOK;
2180 Safefree(SvPVX(dstr) - SvIVX(dstr));
2183 Safefree(SvPVX(dstr));
2185 (void)SvPOK_only(dstr);
2186 SvPV_set(dstr, SvPVX(sstr));
2187 SvLEN_set(dstr, SvLEN(sstr));
2188 SvCUR_set(dstr, SvCUR(sstr));
2190 (void)SvOK_off(sstr);
2191 SvPV_set(sstr, Nullch);
2196 else { /* have to copy actual string */
2197 STRLEN len = SvCUR(sstr);
2199 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2200 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2201 SvCUR_set(dstr, len);
2202 *SvEND(dstr) = '\0';
2203 (void)SvPOK_only(dstr);
2206 if (sflags & SVp_NOK) {
2208 SvNVX(dstr) = SvNVX(sstr);
2210 if (sflags & SVp_IOK) {
2211 (void)SvIOK_on(dstr);
2212 SvIVX(dstr) = SvIVX(sstr);
2215 else if (sflags & SVp_NOK) {
2216 SvNVX(dstr) = SvNVX(sstr);
2217 (void)SvNOK_only(dstr);
2219 (void)SvIOK_on(dstr);
2220 SvIVX(dstr) = SvIVX(sstr);
2223 else if (sflags & SVp_IOK) {
2224 (void)SvIOK_only(dstr);
2225 SvIVX(dstr) = SvIVX(sstr);
2228 if (dtype == SVt_PVGV) {
2230 warn("Undefined value assigned to typeglob");
2233 (void)SvOK_off(dstr);
2239 sv_setsv_mg(SV *dstr, register SV *sstr)
2241 sv_setsv(dstr,sstr);
2246 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2248 register char *dptr;
2249 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2250 elicit a warning, but it won't hurt. */
2251 SV_CHECK_THINKFIRST(sv);
2256 if (SvTYPE(sv) >= SVt_PV) {
2257 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2261 sv_upgrade(sv, SVt_PV);
2263 SvGROW(sv, len + 1);
2265 Move(ptr,dptr,len,char);
2268 (void)SvPOK_only(sv); /* validate pointer */
2273 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2275 sv_setpvn(sv,ptr,len);
2280 sv_setpv(register SV *sv, register const char *ptr)
2282 register STRLEN len;
2284 SV_CHECK_THINKFIRST(sv);
2290 if (SvTYPE(sv) >= SVt_PV) {
2291 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2295 sv_upgrade(sv, SVt_PV);
2297 SvGROW(sv, len + 1);
2298 Move(ptr,SvPVX(sv),len+1,char);
2300 (void)SvPOK_only(sv); /* validate pointer */
2305 sv_setpv_mg(register SV *sv, register const char *ptr)
2312 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2314 SV_CHECK_THINKFIRST(sv);
2315 (void)SvUPGRADE(sv, SVt_PV);
2321 Safefree(SvPVX(sv));
2322 Renew(ptr, len+1, char);
2325 SvLEN_set(sv, len+1);
2327 (void)SvPOK_only(sv); /* validate pointer */
2332 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2334 sv_usepvn(sv,ptr,len);
2339 sv_check_thinkfirst(register SV *sv)
2341 if (SvREADONLY(sv)) {
2343 if (curcop != &compiling)
2351 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2355 register STRLEN delta;
2357 if (!ptr || !SvPOKp(sv))
2359 SV_CHECK_THINKFIRST(sv);
2360 if (SvTYPE(sv) < SVt_PVIV)
2361 sv_upgrade(sv,SVt_PVIV);
2365 SvFLAGS(sv) |= SVf_OOK;
2367 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2368 delta = ptr - SvPVX(sv);
2376 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2381 junk = SvPV_force(sv, tlen);
2382 SvGROW(sv, tlen + len + 1);
2385 Move(ptr,SvPVX(sv)+tlen,len,char);
2388 (void)SvPOK_only(sv); /* validate pointer */
2393 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2395 sv_catpvn(sv,ptr,len);
2400 sv_catsv(SV *dstr, register SV *sstr)
2406 if (s = SvPV(sstr, len))
2407 sv_catpvn(dstr,s,len);
2411 sv_catsv_mg(SV *dstr, register SV *sstr)
2413 sv_catsv(dstr,sstr);
2418 sv_catpv(register SV *sv, register char *ptr)
2420 register STRLEN len;
2426 junk = SvPV_force(sv, tlen);
2428 SvGROW(sv, tlen + len + 1);
2431 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2433 (void)SvPOK_only(sv); /* validate pointer */
2438 sv_catpv_mg(register SV *sv, register char *ptr)
2454 sv_upgrade(sv, SVt_PV);
2455 SvGROW(sv, len + 1);
2460 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2463 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2467 if (SvREADONLY(sv)) {
2469 if (curcop != &compiling && !strchr("gBf", how))
2472 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2473 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2480 (void)SvUPGRADE(sv, SVt_PVMG);
2482 Newz(702,mg, 1, MAGIC);
2483 mg->mg_moremagic = SvMAGIC(sv);
2486 if (!obj || obj == sv || how == '#' || how == 'r')
2490 mg->mg_obj = SvREFCNT_inc(obj);
2491 mg->mg_flags |= MGf_REFCOUNTED;
2494 mg->mg_len = namlen;
2497 mg->mg_ptr = savepvn(name, namlen);
2498 else if (namlen == HEf_SVKEY)
2499 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2503 mg->mg_virtual = &vtbl_sv;
2507 mg->mg_virtual = &vtbl_amagic;
2510 mg->mg_virtual = &vtbl_amagicelem;
2515 #endif /* OVERLOAD */
2517 mg->mg_virtual = &vtbl_bm;
2520 mg->mg_virtual = &vtbl_env;
2523 mg->mg_virtual = &vtbl_fm;
2526 mg->mg_virtual = &vtbl_envelem;
2529 mg->mg_virtual = &vtbl_mglob;
2532 mg->mg_virtual = &vtbl_isa;
2535 mg->mg_virtual = &vtbl_isaelem;
2538 mg->mg_virtual = &vtbl_nkeys;
2545 mg->mg_virtual = &vtbl_dbline;
2549 mg->mg_virtual = &vtbl_mutex;
2551 #endif /* USE_THREADS */
2552 #ifdef USE_LOCALE_COLLATE
2554 mg->mg_virtual = &vtbl_collxfrm;
2556 #endif /* USE_LOCALE_COLLATE */
2558 mg->mg_virtual = &vtbl_pack;
2562 mg->mg_virtual = &vtbl_packelem;
2565 mg->mg_virtual = &vtbl_regexp;
2568 mg->mg_virtual = &vtbl_sig;
2571 mg->mg_virtual = &vtbl_sigelem;
2574 mg->mg_virtual = &vtbl_taint;
2578 mg->mg_virtual = &vtbl_uvar;
2581 mg->mg_virtual = &vtbl_vec;
2584 mg->mg_virtual = &vtbl_substr;
2587 mg->mg_virtual = &vtbl_defelem;
2590 mg->mg_virtual = &vtbl_glob;
2593 mg->mg_virtual = &vtbl_arylen;
2596 mg->mg_virtual = &vtbl_pos;
2598 case '~': /* Reserved for use by extensions not perl internals. */
2599 /* Useful for attaching extension internal data to perl vars. */
2600 /* Note that multiple extensions may clash if magical scalars */
2601 /* etc holding private data from one are passed to another. */
2605 croak("Don't know how to handle magic of type '%c'", how);
2609 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2613 sv_unmagic(SV *sv, int type)
2617 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2620 for (mg = *mgp; mg; mg = *mgp) {
2621 if (mg->mg_type == type) {
2622 MGVTBL* vtbl = mg->mg_virtual;
2623 *mgp = mg->mg_moremagic;
2624 if (vtbl && (vtbl->svt_free != NULL))
2625 (VTBL->svt_free)(sv, mg);
2626 if (mg->mg_ptr && mg->mg_type != 'g')
2627 if (mg->mg_len >= 0)
2628 Safefree(mg->mg_ptr);
2629 else if (mg->mg_len == HEf_SVKEY)
2630 SvREFCNT_dec((SV*)mg->mg_ptr);
2631 if (mg->mg_flags & MGf_REFCOUNTED)
2632 SvREFCNT_dec(mg->mg_obj);
2636 mgp = &mg->mg_moremagic;
2640 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2647 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2651 register char *midend;
2652 register char *bigend;
2658 croak("Can't modify non-existent substring");
2659 SvPV_force(bigstr, curlen);
2660 if (offset + len > curlen) {
2661 SvGROW(bigstr, offset+len+1);
2662 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
2663 SvCUR_set(bigstr, offset+len);
2666 i = littlelen - len;
2667 if (i > 0) { /* string might grow */
2668 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2669 mid = big + offset + len;
2670 midend = bigend = big + SvCUR(bigstr);
2673 while (midend > mid) /* shove everything down */
2674 *--bigend = *--midend;
2675 Move(little,big+offset,littlelen,char);
2681 Move(little,SvPVX(bigstr)+offset,len,char);
2686 big = SvPVX(bigstr);
2689 bigend = big + SvCUR(bigstr);
2691 if (midend > bigend)
2692 croak("panic: sv_insert");
2694 if (mid - big > bigend - midend) { /* faster to shorten from end */
2696 Move(little, mid, littlelen,char);
2699 i = bigend - midend;
2701 Move(midend, mid, i,char);
2705 SvCUR_set(bigstr, mid - big);
2708 else if (i = mid - big) { /* faster from front */
2709 midend -= littlelen;
2711 sv_chop(bigstr,midend-i);
2716 Move(little, mid, littlelen,char);
2718 else if (littlelen) {
2719 midend -= littlelen;
2720 sv_chop(bigstr,midend);
2721 Move(little,midend,littlelen,char);
2724 sv_chop(bigstr,midend);
2729 /* make sv point to what nstr did */
2732 sv_replace(register SV *sv, register SV *nsv)
2734 U32 refcnt = SvREFCNT(sv);
2735 SV_CHECK_THINKFIRST(sv);
2736 if (SvREFCNT(nsv) != 1)
2737 warn("Reference miscount in sv_replace()");
2738 if (SvMAGICAL(sv)) {
2742 sv_upgrade(nsv, SVt_PVMG);
2743 SvMAGIC(nsv) = SvMAGIC(sv);
2744 SvFLAGS(nsv) |= SvMAGICAL(sv);
2750 assert(!SvREFCNT(sv));
2751 StructCopy(nsv,sv,SV);
2752 SvREFCNT(sv) = refcnt;
2753 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2758 sv_clear(register SV *sv)
2762 assert(SvREFCNT(sv) == 0);
2766 if (defstash) { /* Still have a symbol table? */
2771 Zero(&tmpref, 1, SV);
2772 sv_upgrade(&tmpref, SVt_RV);
2774 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2775 SvREFCNT(&tmpref) = 1;
2778 stash = SvSTASH(sv);
2779 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2782 PUSHSTACK(SI_DESTROY);
2783 SvRV(&tmpref) = SvREFCNT_inc(sv);
2788 perl_call_sv((SV*)GvCV(destructor),
2789 G_DISCARD|G_EVAL|G_KEEPERR);
2794 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2796 del_XRV(SvANY(&tmpref));
2800 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2801 SvOBJECT_off(sv); /* Curse the object. */
2802 if (SvTYPE(sv) != SVt_PVIO)
2803 --sv_objcount; /* XXX Might want something more general */
2807 croak("DESTROY created new reference to dead object");
2808 /* DESTROY gave object new lease on life */
2812 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2815 switch (SvTYPE(sv)) {
2817 if (IoIFP(sv) != PerlIO_stdin() &&
2818 IoIFP(sv) != PerlIO_stdout() &&
2819 IoIFP(sv) != PerlIO_stderr())
2821 Safefree(IoTOP_NAME(sv));
2822 Safefree(IoFMT_NAME(sv));
2823 Safefree(IoBOTTOM_NAME(sv));
2839 Safefree(GvNAME(sv));
2840 /* cannot decrease stash refcount yet, as we might recursively delete
2841 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2842 of stash until current sv is completely gone.
2843 -- JohnPC, 27 Mar 1998 */
2844 stash = GvSTASH(sv);
2851 (void)SvOOK_off(sv);
2856 SvREFCNT_dec(SvRV(sv));
2857 else if (SvPVX(sv) && SvLEN(sv))
2858 Safefree(SvPVX(sv));
2868 switch (SvTYPE(sv)) {
2884 del_XPVIV(SvANY(sv));
2887 del_XPVNV(SvANY(sv));
2890 del_XPVMG(SvANY(sv));
2893 del_XPVLV(SvANY(sv));
2896 del_XPVAV(SvANY(sv));
2899 del_XPVHV(SvANY(sv));
2902 del_XPVCV(SvANY(sv));
2905 del_XPVGV(SvANY(sv));
2906 /* code duplication for increased performance. */
2907 SvFLAGS(sv) &= SVf_BREAK;
2908 SvFLAGS(sv) |= SVTYPEMASK;
2909 /* decrease refcount of the stash that owns this GV, if any */
2911 SvREFCNT_dec(stash);
2912 return; /* not break, SvFLAGS reset already happened */
2914 del_XPVBM(SvANY(sv));
2917 del_XPVFM(SvANY(sv));
2920 del_XPVIO(SvANY(sv));
2923 SvFLAGS(sv) &= SVf_BREAK;
2924 SvFLAGS(sv) |= SVTYPEMASK;
2931 ATOMIC_INC(SvREFCNT(sv));
2938 int refcount_is_zero;
2942 if (SvREADONLY(sv)) {
2943 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2946 if (SvREFCNT(sv) == 0) {
2947 if (SvFLAGS(sv) & SVf_BREAK)
2949 if (in_clean_all) /* All is fair */
2951 warn("Attempt to free unreferenced scalar");
2954 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
2955 if (!refcount_is_zero)
2959 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2969 sv_len(register SV *sv)
2978 len = mg_length(sv);
2980 junk = SvPV(sv, len);
2985 sv_eq(register SV *str1, register SV *str2)
2997 pv1 = SvPV(str1, cur1);
3002 pv2 = SvPV(str2, cur2);
3007 return memEQ(pv1, pv2, cur1);
3011 sv_cmp(register SV *str1, register SV *str2)
3014 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
3016 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3020 return cur2 ? -1 : 0;
3025 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3028 return retval < 0 ? -1 : 1;
3033 return cur1 < cur2 ? -1 : 1;
3037 sv_cmp_locale(register SV *sv1, register SV *sv2)
3039 #ifdef USE_LOCALE_COLLATE
3045 if (collation_standard)
3049 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3051 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3053 if (!pv1 || !len1) {
3064 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3067 return retval < 0 ? -1 : 1;
3070 * When the result of collation is equality, that doesn't mean
3071 * that there are no differences -- some locales exclude some
3072 * characters from consideration. So to avoid false equalities,
3073 * we use the raw string as a tiebreaker.
3079 #endif /* USE_LOCALE_COLLATE */
3081 return sv_cmp(sv1, sv2);
3084 #ifdef USE_LOCALE_COLLATE
3086 * Any scalar variable may carry an 'o' magic that contains the
3087 * scalar data of the variable transformed to such a format that
3088 * a normal memory comparison can be used to compare the data
3089 * according to the locale settings.
3092 sv_collxfrm(SV *sv, STRLEN *nxp)
3096 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3097 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3102 Safefree(mg->mg_ptr);
3104 if ((xf = mem_collxfrm(s, len, &xlen))) {
3105 if (SvREADONLY(sv)) {
3108 return xf + sizeof(collation_ix);
3111 sv_magic(sv, 0, 'o', 0, 0);
3112 mg = mg_find(sv, 'o');
3125 if (mg && mg->mg_ptr) {
3127 return mg->mg_ptr + sizeof(collation_ix);
3135 #endif /* USE_LOCALE_COLLATE */
3138 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3143 register STDCHAR rslast;
3144 register STDCHAR *bp;
3148 SV_CHECK_THINKFIRST(sv);
3149 (void)SvUPGRADE(sv, SVt_PV);
3156 else if (RsPARA(rs)) {
3161 rsptr = SvPV(rs, rslen);
3162 rslast = rslen ? rsptr[rslen - 1] : '\0';
3164 if (RsPARA(rs)) { /* have to do this both before and after */
3165 do { /* to make sure file boundaries work right */
3168 i = PerlIO_getc(fp);
3172 PerlIO_ungetc(fp,i);
3178 /* See if we know enough about I/O mechanism to cheat it ! */
3180 /* This used to be #ifdef test - it is made run-time test for ease
3181 of abstracting out stdio interface. One call should be cheap
3182 enough here - and may even be a macro allowing compile
3186 if (PerlIO_fast_gets(fp)) {
3189 * We're going to steal some values from the stdio struct
3190 * and put EVERYTHING in the innermost loop into registers.
3192 register STDCHAR *ptr;
3196 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3197 /* An ungetc()d char is handled separately from the regular
3198 * buffer, so we getc() it back out and stuff it in the buffer.
3200 i = PerlIO_getc(fp);
3201 if (i == EOF) return 0;
3202 *(--((*fp)->_ptr)) = (unsigned char) i;
3206 /* Here is some breathtakingly efficient cheating */
3208 cnt = PerlIO_get_cnt(fp); /* get count into register */
3209 (void)SvPOK_only(sv); /* validate pointer */
3210 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3211 if (cnt > 80 && SvLEN(sv) > append) {
3212 shortbuffered = cnt - SvLEN(sv) + append + 1;
3213 cnt -= shortbuffered;
3217 /* remember that cnt can be negative */
3218 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3223 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3224 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3225 DEBUG_P(PerlIO_printf(Perl_debug_log,
3226 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3227 DEBUG_P(PerlIO_printf(Perl_debug_log,
3228 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3229 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3230 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3235 while (cnt > 0) { /* this | eat */
3237 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3238 goto thats_all_folks; /* screams | sed :-) */
3242 Copy(ptr, bp, cnt, char); /* this | eat */
3243 bp += cnt; /* screams | dust */
3244 ptr += cnt; /* louder | sed :-) */
3249 if (shortbuffered) { /* oh well, must extend */
3250 cnt = shortbuffered;
3252 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3254 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3255 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3259 DEBUG_P(PerlIO_printf(Perl_debug_log,
3260 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3261 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3262 DEBUG_P(PerlIO_printf(Perl_debug_log,
3263 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3264 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3265 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3266 /* This used to call 'filbuf' in stdio form, but as that behaves like
3267 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3268 another abstraction. */
3269 i = PerlIO_getc(fp); /* get more characters */
3270 DEBUG_P(PerlIO_printf(Perl_debug_log,
3271 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3272 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3273 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3274 cnt = PerlIO_get_cnt(fp);
3275 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3276 DEBUG_P(PerlIO_printf(Perl_debug_log,
3277 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3279 if (i == EOF) /* all done for ever? */
3280 goto thats_really_all_folks;
3282 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3284 SvGROW(sv, bpx + cnt + 2);
3285 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3287 *bp++ = i; /* store character from PerlIO_getc */
3289 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3290 goto thats_all_folks;
3294 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3295 memNE((char*)bp - rslen, rsptr, rslen))
3296 goto screamer; /* go back to the fray */
3297 thats_really_all_folks:
3299 cnt += shortbuffered;
3300 DEBUG_P(PerlIO_printf(Perl_debug_log,
3301 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3302 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3303 DEBUG_P(PerlIO_printf(Perl_debug_log,
3304 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3305 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3306 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3308 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3309 DEBUG_P(PerlIO_printf(Perl_debug_log,
3310 "Screamer: done, len=%ld, string=|%.*s|\n",
3311 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3315 /*The big, slow, and stupid way */
3320 register STDCHAR *bpe = buf + sizeof(buf);
3322 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3323 ; /* keep reading */
3327 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3328 /* Accomodate broken VAXC compiler, which applies U8 cast to
3329 * both args of ?: operator, causing EOF to change into 255
3331 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3335 sv_catpvn(sv, (char *) buf, cnt);
3337 sv_setpvn(sv, (char *) buf, cnt);
3339 if (i != EOF && /* joy */
3341 SvCUR(sv) < rslen ||
3342 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3346 * If we're reading from a TTY and we get a short read,
3347 * indicating that the user hit his EOF character, we need
3348 * to notice it now, because if we try to read from the TTY
3349 * again, the EOF condition will disappear.
3351 * The comparison of cnt to sizeof(buf) is an optimization
3352 * that prevents unnecessary calls to feof().
3356 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3361 if (RsPARA(rs)) { /* have to do this both before and after */
3362 while (i != EOF) { /* to make sure file boundaries work right */
3363 i = PerlIO_getc(fp);
3365 PerlIO_ungetc(fp,i);
3372 win32_strip_return(sv);
3375 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3380 sv_inc(register SV *sv)
3387 if (SvTHINKFIRST(sv)) {
3388 if (SvREADONLY(sv)) {
3390 if (curcop != &compiling)
3395 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3396 #endif /* OVERLOAD */
3402 flags = SvFLAGS(sv);
3403 if (flags & SVp_NOK) {
3404 (void)SvNOK_only(sv);
3408 if (flags & SVp_IOK) {
3409 if (SvIVX(sv) == IV_MAX)
3410 sv_setnv(sv, (double)IV_MAX + 1.0);
3412 (void)SvIOK_only(sv);
3417 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3418 if ((flags & SVTYPEMASK) < SVt_PVNV)
3419 sv_upgrade(sv, SVt_NV);
3421 (void)SvNOK_only(sv);
3425 while (isALPHA(*d)) d++;
3426 while (isDIGIT(*d)) d++;
3428 SET_NUMERIC_STANDARD();
3429 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3433 while (d >= SvPVX(sv)) {
3443 *(d--) -= 'z' - 'a' + 1;
3446 /* oh,oh, the number grew */
3447 SvGROW(sv, SvCUR(sv) + 2);
3449 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3458 sv_dec(register SV *sv)
3464 if (SvTHINKFIRST(sv)) {
3465 if (SvREADONLY(sv)) {
3467 if (curcop != &compiling)
3472 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3473 #endif /* OVERLOAD */
3479 flags = SvFLAGS(sv);
3480 if (flags & SVp_NOK) {
3482 (void)SvNOK_only(sv);
3485 if (flags & SVp_IOK) {
3486 if (SvIVX(sv) == IV_MIN)
3487 sv_setnv(sv, (double)IV_MIN - 1.0);
3489 (void)SvIOK_only(sv);
3494 if (!(flags & SVp_POK)) {
3495 if ((flags & SVTYPEMASK) < SVt_PVNV)
3496 sv_upgrade(sv, SVt_NV);
3498 (void)SvNOK_only(sv);
3501 SET_NUMERIC_STANDARD();
3502 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3505 /* Make a string that will exist for the duration of the expression
3506 * evaluation. Actually, it may have to last longer than that, but
3507 * hopefully we won't free it until it has been assigned to a
3508 * permanent location. */
3514 tmps_max += (tmps_max < 512) ? 128 : 512;
3515 Renew(tmps_stack, tmps_max, SV*);
3519 sv_mortalcopy(SV *oldstr)
3528 sv_setsv(sv,oldstr);
3529 if (++tmps_ix >= tmps_max)
3531 tmps_stack[tmps_ix] = sv;
3545 SvFLAGS(sv) = SVs_TEMP;
3546 if (++tmps_ix >= tmps_max)
3548 tmps_stack[tmps_ix] = sv;
3552 /* same thing without the copying */
3555 sv_2mortal(register SV *sv)
3560 if (SvREADONLY(sv) && curcop != &compiling)
3562 if (++tmps_ix >= tmps_max)
3564 tmps_stack[tmps_ix] = sv;
3570 newSVpv(char *s, STRLEN len)
3580 sv_setpvn(sv,s,len);
3585 newSVpvn(char *s, STRLEN len)
3593 sv_setpvn(sv,s,len);
3598 newSVpvf(const char* pat, ...)
3607 va_start(args, pat);
3608 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3650 sv_upgrade(sv, SVt_RV);
3652 SvRV(sv) = SvREFCNT_inc(tmpRef);
3660 Perl_newRV_noinc(SV *tmpRef)
3665 SvREFCNT_dec(tmpRef);
3669 /* make an exact duplicate of old */
3672 newSVsv(register SV *old)
3678 if (SvTYPE(old) == SVTYPEMASK) {
3679 warn("semi-panic: attempt to dup freed string");
3697 sv_reset(register char *s, HV *stash)
3710 if (!*s) { /* reset ?? searches */
3711 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3712 pm->op_pmdynflags &= ~PMdf_USED;
3717 /* reset variables */
3719 if (!HvARRAY(stash))
3722 Zero(todo, 256, char);
3729 for ( ; i <= max; i++) {
3732 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3733 for (entry = HvARRAY(stash)[i];
3735 entry = HeNEXT(entry)) {
3736 if (!todo[(U8)*HeKEY(entry)])
3738 gv = (GV*)HeVAL(entry);
3741 if (SvTYPE(sv) >= SVt_PV) {
3743 if (SvPVX(sv) != Nullch)
3750 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3752 #ifndef VMS /* VMS has no environ array */
3754 environ[0] = Nullch;
3768 switch (SvTYPE(sv)) {
3776 croak("Bad filehandle: %s", GvNAME(gv));
3780 croak(no_usym, "filehandle");
3782 return sv_2io(SvRV(sv));
3783 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3789 croak("Bad filehandle: %s", SvPV(sv,na));
3796 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3802 return *gvp = Nullgv, Nullcv;
3803 switch (SvTYPE(sv)) {
3823 if (SvTYPE(cv) != SVt_PVCV)
3824 croak("Not a subroutine reference");
3832 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3838 if (lref && !GvCVu(gv)) {
3841 tmpsv = NEWSV(704,0);
3842 gv_efullname3(tmpsv, gv, Nullch);
3843 newSUB(start_subparse(FALSE, 0),
3844 newSVOP(OP_CONST, 0, tmpsv),
3849 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3856 sv_true(register SV *sv)
3863 if ((tXpv = (XPV*)SvANY(sv)) &&
3864 (*tXpv->xpv_pv > '0' ||
3865 tXpv->xpv_cur > 1 ||
3866 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3873 return SvIVX(sv) != 0;
3876 return SvNVX(sv) != 0.0;
3878 return sv_2bool(sv);
3884 sv_iv(register SV *sv)
3892 sv_uv(register SV *sv)
3900 sv_nv(register SV *sv)
3908 sv_pvn(SV *sv, STRLEN *lp)
3914 return sv_2pv(sv, lp);
3918 sv_pvn_force(SV *sv, STRLEN *lp)
3922 if (SvREADONLY(sv)) {
3924 if (curcop != &compiling)
3932 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3933 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3940 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3941 op_name[op->op_type]);
3946 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3951 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3952 SvGROW(sv, len + 1);
3953 Move(s,SvPVX(sv),len,char);
3958 SvPOK_on(sv); /* validate pointer */
3960 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3961 (unsigned long)sv,SvPVX(sv)));
3968 sv_reftype(SV *sv, int ob)
3970 if (ob && SvOBJECT(sv))
3971 return HvNAME(SvSTASH(sv));
3973 switch (SvTYPE(sv)) {
3987 case SVt_PVLV: return "LVALUE";
3988 case SVt_PVAV: return "ARRAY";
3989 case SVt_PVHV: return "HASH";
3990 case SVt_PVCV: return "CODE";
3991 case SVt_PVGV: return "GLOB";
3992 case SVt_PVFM: return "FORMAT";
3993 default: return "UNKNOWN";
4014 sv_isa(SV *sv, char *name)
4026 return strEQ(HvNAME(SvSTASH(sv)), name);
4030 newSVrv(SV *rv, char *classname)
4040 SV_CHECK_THINKFIRST(rv);
4043 #endif /* OVERLOAD */
4045 if (SvTYPE(rv) < SVt_RV)
4046 sv_upgrade(rv, SVt_RV);
4049 SvRV(rv) = SvREFCNT_inc(sv);
4053 HV* stash = gv_stashpv(classname, TRUE);
4054 (void)sv_bless(rv, stash);
4060 sv_setref_pv(SV *rv, char *classname, void *pv)
4063 sv_setsv(rv, &sv_undef);
4067 sv_setiv(newSVrv(rv,classname), (IV)pv);
4072 sv_setref_iv(SV *rv, char *classname, IV iv)
4074 sv_setiv(newSVrv(rv,classname), iv);
4079 sv_setref_nv(SV *rv, char *classname, double nv)
4081 sv_setnv(newSVrv(rv,classname), nv);
4086 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4088 sv_setpvn(newSVrv(rv,classname), pv, n);
4093 sv_bless(SV *sv, HV *stash)
4098 croak("Can't bless non-reference value");
4100 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4101 if (SvREADONLY(tmpRef))
4103 if (SvOBJECT(tmpRef)) {
4104 if (SvTYPE(tmpRef) != SVt_PVIO)
4106 SvREFCNT_dec(SvSTASH(tmpRef));
4109 SvOBJECT_on(tmpRef);
4110 if (SvTYPE(tmpRef) != SVt_PVIO)
4112 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4113 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4120 #endif /* OVERLOAD */
4128 assert(SvTYPE(sv) == SVt_PVGV);
4133 SvREFCNT_dec(GvSTASH(sv));
4134 GvSTASH(sv) = Nullhv;
4136 sv_unmagic(sv, '*');
4137 Safefree(GvNAME(sv));
4139 SvFLAGS(sv) &= ~SVTYPEMASK;
4140 SvFLAGS(sv) |= SVt_PVMG;
4150 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4153 sv_2mortal(rv); /* Schedule for freeing later */
4159 sv_magic((sv), Nullsv, 't', Nullch, 0);
4165 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4166 MAGIC *mg = mg_find(sv, 't');
4175 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4176 MAGIC *mg = mg_find(sv, 't');
4177 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4184 sv_setpviv(SV *sv, IV iv)
4187 char buf[TYPE_DIGITS(UV)];
4188 char *ptr = buf + sizeof(buf);
4193 sv_setpvn(sv, "", 0);
4202 *--ptr = '0' + (uv % 10);
4204 len = (buf + sizeof(buf)) - ptr;
4205 /* taking advantage of SvCUR(sv) == 0 */
4206 SvGROW(sv, sign + len + 1);
4210 memcpy(p, ptr, len);
4213 SvCUR(sv) = p - SvPVX(sv);
4218 sv_setpviv_mg(SV *sv, IV iv)
4225 sv_setpvf(SV *sv, const char* pat, ...)
4228 va_start(args, pat);
4229 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4235 sv_setpvf_mg(SV *sv, const char* pat, ...)
4238 va_start(args, pat);
4239 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4245 sv_catpvf(SV *sv, const char* pat, ...)
4248 va_start(args, pat);
4249 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4254 sv_catpvf_mg(SV *sv, const char* pat, ...)
4257 va_start(args, pat);
4258 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4264 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4266 sv_setpvn(sv, "", 0);
4267 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4271 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4279 static char nullstr[] = "(null)";
4281 /* no matter what, this is a string now */
4282 (void)SvPV_force(sv, origlen);
4284 /* special-case "", "%s", and "%_" */
4287 if (patlen == 2 && pat[0] == '%') {
4291 char *s = va_arg(*args, char*);
4292 sv_catpv(sv, s ? s : nullstr);
4294 else if (svix < svmax)
4295 sv_catsv(sv, *svargs);
4299 sv_catsv(sv, va_arg(*args, SV*));
4302 /* See comment on '_' below */
4307 patend = (char*)pat + patlen;
4308 for (p = (char*)pat; p < patend; p = q) {
4316 bool has_precis = FALSE;
4320 STRLEN esignlen = 0;
4322 char *eptr = Nullch;
4324 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4326 static char *efloatbuf = Nullch;
4327 static STRLEN efloatsize = 0;
4339 for (q = p; q < patend && *q != '%'; ++q) ;
4341 sv_catpvn(sv, p, q - p);
4379 case '1': case '2': case '3':
4380 case '4': case '5': case '6':
4381 case '7': case '8': case '9':
4384 width = width * 10 + (*q++ - '0');
4389 i = va_arg(*args, int);
4391 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4393 width = (i < 0) ? -i : i;
4404 i = va_arg(*args, int);
4406 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4407 precis = (i < 0) ? 0 : i;
4413 precis = precis * 10 + (*q++ - '0');
4422 #if 0 /* when quads have better support within Perl */
4423 if (*(q + 1) == 'l') {
4449 c = va_arg(*args, int);
4451 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4458 eptr = va_arg(*args, char*);
4460 elen = strlen(eptr);
4463 elen = sizeof nullstr - 1;
4466 else if (svix < svmax)
4467 eptr = SvPVx(svargs[svix++], elen);
4472 * The "%_" hack might have to be changed someday,
4473 * if ISO or ANSI decide to use '_' for something.
4474 * So we keep it hidden from users' code.
4478 eptr = SvPVx(va_arg(*args, SV*), elen);
4481 if (has_precis && elen > precis)
4489 uv = (UV)va_arg(*args, void*);
4491 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4502 case 'h': iv = (short)va_arg(*args, int); break;
4503 default: iv = va_arg(*args, int); break;
4504 case 'l': iv = va_arg(*args, long); break;
4505 case 'V': iv = va_arg(*args, IV); break;
4509 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4511 case 'h': iv = (short)iv; break;
4512 default: iv = (int)iv; break;
4513 case 'l': iv = (long)iv; break;
4520 esignbuf[esignlen++] = plus;
4524 esignbuf[esignlen++] = '-';
4550 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4551 default: uv = va_arg(*args, unsigned); break;
4552 case 'l': uv = va_arg(*args, unsigned long); break;
4553 case 'V': uv = va_arg(*args, UV); break;
4557 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4559 case 'h': uv = (unsigned short)uv; break;
4560 default: uv = (unsigned)uv; break;
4561 case 'l': uv = (unsigned long)uv; break;
4567 eptr = ebuf + sizeof ebuf;
4573 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4579 esignbuf[esignlen++] = '0';
4580 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4586 *--eptr = '0' + dig;
4588 if (alt && *eptr != '0')
4591 default: /* it had better be ten or less */
4594 *--eptr = '0' + dig;
4595 } while (uv /= base);
4598 elen = (ebuf + sizeof ebuf) - eptr;
4601 zeros = precis - elen;
4602 else if (precis == 0 && elen == 1 && *eptr == '0')
4607 /* FLOATING POINT */
4610 c = 'f'; /* maybe %F isn't supported here */
4616 /* This is evil, but floating point is even more evil */
4619 nv = va_arg(*args, double);
4621 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4624 if (c != 'e' && c != 'E') {
4626 (void)frexp(nv, &i);
4627 if (i == PERL_INT_MIN)
4628 die("panic: frexp");
4630 need = BIT_DIGITS(i);
4632 need += has_precis ? precis : 6; /* known default */
4636 need += 20; /* fudge factor */
4637 if (efloatsize < need) {
4638 Safefree(efloatbuf);
4639 efloatsize = need + 20; /* more fudge */
4640 New(906, efloatbuf, efloatsize, char);
4643 eptr = ebuf + sizeof ebuf;
4648 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4653 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4665 (void)sprintf(efloatbuf, eptr, nv);
4668 elen = strlen(efloatbuf);
4672 * User-defined locales may include arbitrary characters.
4673 * And, unfortunately, some system may alloc the "C" locale
4674 * to be overridden by a malicious user.
4677 *used_locale = TRUE;
4678 #endif /* LC_NUMERIC */
4685 i = SvCUR(sv) - origlen;
4688 case 'h': *(va_arg(*args, short*)) = i; break;
4689 default: *(va_arg(*args, int*)) = i; break;
4690 case 'l': *(va_arg(*args, long*)) = i; break;
4691 case 'V': *(va_arg(*args, IV*)) = i; break;
4694 else if (svix < svmax)
4695 sv_setuv(svargs[svix++], (UV)i);
4696 continue; /* not "break" */
4702 if (!args && dowarn &&
4703 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4704 SV *msg = sv_newmortal();
4705 sv_setpvf(msg, "Invalid conversion in %s: ",
4706 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4708 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4711 sv_catpv(msg, "end of string");
4712 warn("%_", msg); /* yes, this is reentrant */
4715 /* output mangled stuff ... */
4721 /* ... right here, because formatting flags should not apply */
4722 SvGROW(sv, SvCUR(sv) + elen + 1);
4724 memcpy(p, eptr, elen);
4727 SvCUR(sv) = p - SvPVX(sv);
4728 continue; /* not "break" */
4731 have = esignlen + zeros + elen;
4732 need = (have > width ? have : width);
4735 SvGROW(sv, SvCUR(sv) + need + 1);
4737 if (esignlen && fill == '0') {
4738 for (i = 0; i < esignlen; i++)
4742 memset(p, fill, gap);
4745 if (esignlen && fill != '0') {
4746 for (i = 0; i < esignlen; i++)
4750 for (i = zeros; i; i--)
4754 memcpy(p, eptr, elen);
4758 memset(p, ' ', gap);
4762 SvCUR(sv) = p - SvPVX(sv);
4770 SV *d = sv_newmortal();
4776 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4780 flags = SvFLAGS(sv);
4783 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4784 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4785 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4786 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4787 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4788 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4789 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4790 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4791 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4792 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4794 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4795 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4796 if (flags & SVf_POK) sv_catpv(d, "POK,");
4797 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4798 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4799 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4800 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4803 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4804 #endif /* OVERLOAD */
4805 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4806 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4807 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4808 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4813 if (CvANON(sv)) sv_catpv(d, "ANON,");
4814 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4815 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4816 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4817 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4820 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4821 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4824 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4825 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4826 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4827 if (GvIMPORTED(sv)) {
4828 sv_catpv(d, "IMPORT");
4829 if (GvIMPORTED(sv) == GVf_IMPORTED)
4830 sv_catpv(d, "ALL,");
4833 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4834 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4835 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4836 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4841 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4842 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4846 if (*(SvEND(d) - 1) == ',')
4847 SvPVX(d)[--SvCUR(d)] = '\0';
4851 PerlIO_printf(Perl_debug_log, "SV = ");
4854 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4857 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4860 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4863 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4866 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4869 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4872 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4875 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4878 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4881 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4884 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4887 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4890 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4893 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4896 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4899 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4902 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4905 if (type >= SVt_PVIV || type == SVt_IV)
4906 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4907 if (type >= SVt_PVNV || type == SVt_NV) {
4908 SET_NUMERIC_STANDARD();
4909 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4912 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4918 if (type <= SVt_PVLV) {
4920 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4921 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4923 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4925 if (type >= SVt_PVMG) {
4927 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4930 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4934 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4935 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4936 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4937 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4938 sv_dump(LvTARG(sv));
4941 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4942 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4943 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
4944 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4945 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4946 flags = AvFLAGS(sv);
4948 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4949 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4950 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4951 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4952 SvCUR(d) ? SvPVX(d) + 1 : "");
4955 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4956 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4957 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4958 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4959 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4960 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4962 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4964 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4968 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4971 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4972 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4973 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4974 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4975 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4976 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4977 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4978 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4980 PerlIO_printf(Perl_debug_log, "\n");
4982 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4983 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4984 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4985 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4987 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4988 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4989 #endif /* USE_THREADS */
4990 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
4991 (unsigned long)CvFLAGS(sv));
4992 if (type == SVt_PVFM)
4993 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4996 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4997 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4998 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
4999 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5000 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5001 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5002 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5003 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5004 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5005 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5006 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5007 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5008 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5009 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5010 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5011 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5012 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5015 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5016 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5017 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5018 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5019 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5020 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5021 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5022 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5023 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5024 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5025 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5026 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5027 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5028 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5029 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5030 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
5033 #endif /* DEBUGGING */