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 = "FORMLINE"; 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 /* ahem, death to those who redefine
2083 * active sort subs */
2084 if (curstackinfo->si_type == SI_SORT &&
2085 sortcop == CvSTART(cv))
2087 "Can't redefine active sort subroutine %s",
2088 GvENAME((GV*)dstr));
2089 if (cv_const_sv(cv))
2090 warn("Constant subroutine %s redefined",
2091 GvENAME((GV*)dstr));
2093 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2094 && HvNAME(GvSTASH(CvGV(cv)))
2095 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2097 warn("Subroutine %s redefined",
2098 GvENAME((GV*)dstr));
2101 cv_ckproto(cv, (GV*)dstr,
2102 SvPOK(sref) ? SvPVX(sref) : Nullch);
2104 GvCV(dstr) = (CV*)sref;
2105 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2106 GvASSUMECV_on(dstr);
2109 if (curcop->cop_stash != GvSTASH(dstr))
2110 GvIMPORTED_CV_on(dstr);
2114 SAVESPTR(GvIOp(dstr));
2116 dref = (SV*)GvIOp(dstr);
2117 GvIOp(dstr) = (IO*)sref;
2121 SAVESPTR(GvSV(dstr));
2123 dref = (SV*)GvSV(dstr);
2125 if (curcop->cop_stash != GvSTASH(dstr))
2126 GvIMPORTED_SV_on(dstr);
2137 (void)SvOOK_off(dstr); /* backoff */
2138 Safefree(SvPVX(dstr));
2139 SvLEN(dstr)=SvCUR(dstr)=0;
2142 (void)SvOK_off(dstr);
2143 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2145 if (sflags & SVp_NOK) {
2147 SvNVX(dstr) = SvNVX(sstr);
2149 if (sflags & SVp_IOK) {
2150 (void)SvIOK_on(dstr);
2151 SvIVX(dstr) = SvIVX(sstr);
2154 if (SvAMAGIC(sstr)) {
2157 #endif /* OVERLOAD */
2159 else if (sflags & SVp_POK) {
2162 * Check to see if we can just swipe the string. If so, it's a
2163 * possible small lose on short strings, but a big win on long ones.
2164 * It might even be a win on short strings if SvPVX(dstr)
2165 * has to be allocated and SvPVX(sstr) has to be freed.
2168 if (SvTEMP(sstr) && /* slated for free anyway? */
2169 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2170 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2172 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2174 SvFLAGS(dstr) &= ~SVf_OOK;
2175 Safefree(SvPVX(dstr) - SvIVX(dstr));
2178 Safefree(SvPVX(dstr));
2180 (void)SvPOK_only(dstr);
2181 SvPV_set(dstr, SvPVX(sstr));
2182 SvLEN_set(dstr, SvLEN(sstr));
2183 SvCUR_set(dstr, SvCUR(sstr));
2185 (void)SvOK_off(sstr);
2186 SvPV_set(sstr, Nullch);
2191 else { /* have to copy actual string */
2192 STRLEN len = SvCUR(sstr);
2194 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2195 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2196 SvCUR_set(dstr, len);
2197 *SvEND(dstr) = '\0';
2198 (void)SvPOK_only(dstr);
2201 if (sflags & SVp_NOK) {
2203 SvNVX(dstr) = SvNVX(sstr);
2205 if (sflags & SVp_IOK) {
2206 (void)SvIOK_on(dstr);
2207 SvIVX(dstr) = SvIVX(sstr);
2210 else if (sflags & SVp_NOK) {
2211 SvNVX(dstr) = SvNVX(sstr);
2212 (void)SvNOK_only(dstr);
2214 (void)SvIOK_on(dstr);
2215 SvIVX(dstr) = SvIVX(sstr);
2218 else if (sflags & SVp_IOK) {
2219 (void)SvIOK_only(dstr);
2220 SvIVX(dstr) = SvIVX(sstr);
2223 if (dtype == SVt_PVGV) {
2225 warn("Undefined value assigned to typeglob");
2228 (void)SvOK_off(dstr);
2234 sv_setsv_mg(SV *dstr, register SV *sstr)
2236 sv_setsv(dstr,sstr);
2241 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2243 register char *dptr;
2244 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2245 elicit a warning, but it won't hurt. */
2246 SV_CHECK_THINKFIRST(sv);
2251 if (SvTYPE(sv) >= SVt_PV) {
2252 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2256 sv_upgrade(sv, SVt_PV);
2258 SvGROW(sv, len + 1);
2260 Move(ptr,dptr,len,char);
2263 (void)SvPOK_only(sv); /* validate pointer */
2268 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2270 sv_setpvn(sv,ptr,len);
2275 sv_setpv(register SV *sv, register const char *ptr)
2277 register STRLEN len;
2279 SV_CHECK_THINKFIRST(sv);
2285 if (SvTYPE(sv) >= SVt_PV) {
2286 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2290 sv_upgrade(sv, SVt_PV);
2292 SvGROW(sv, len + 1);
2293 Move(ptr,SvPVX(sv),len+1,char);
2295 (void)SvPOK_only(sv); /* validate pointer */
2300 sv_setpv_mg(register SV *sv, register const char *ptr)
2307 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2309 SV_CHECK_THINKFIRST(sv);
2310 (void)SvUPGRADE(sv, SVt_PV);
2316 Safefree(SvPVX(sv));
2317 Renew(ptr, len+1, char);
2320 SvLEN_set(sv, len+1);
2322 (void)SvPOK_only(sv); /* validate pointer */
2327 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2329 sv_usepvn(sv,ptr,len);
2334 sv_check_thinkfirst(register SV *sv)
2336 if (SvREADONLY(sv)) {
2338 if (curcop != &compiling)
2346 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2350 register STRLEN delta;
2352 if (!ptr || !SvPOKp(sv))
2354 SV_CHECK_THINKFIRST(sv);
2355 if (SvTYPE(sv) < SVt_PVIV)
2356 sv_upgrade(sv,SVt_PVIV);
2360 SvFLAGS(sv) |= SVf_OOK;
2362 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2363 delta = ptr - SvPVX(sv);
2371 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2376 junk = SvPV_force(sv, tlen);
2377 SvGROW(sv, tlen + len + 1);
2380 Move(ptr,SvPVX(sv)+tlen,len,char);
2383 (void)SvPOK_only(sv); /* validate pointer */
2388 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2390 sv_catpvn(sv,ptr,len);
2395 sv_catsv(SV *dstr, register SV *sstr)
2401 if (s = SvPV(sstr, len))
2402 sv_catpvn(dstr,s,len);
2406 sv_catsv_mg(SV *dstr, register SV *sstr)
2408 sv_catsv(dstr,sstr);
2413 sv_catpv(register SV *sv, register char *ptr)
2415 register STRLEN len;
2421 junk = SvPV_force(sv, tlen);
2423 SvGROW(sv, tlen + len + 1);
2426 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2428 (void)SvPOK_only(sv); /* validate pointer */
2433 sv_catpv_mg(register SV *sv, register char *ptr)
2449 sv_upgrade(sv, SVt_PV);
2450 SvGROW(sv, len + 1);
2455 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2458 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2462 if (SvREADONLY(sv)) {
2464 if (curcop != &compiling && !strchr("gBf", how))
2467 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2468 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2475 (void)SvUPGRADE(sv, SVt_PVMG);
2477 Newz(702,mg, 1, MAGIC);
2478 mg->mg_moremagic = SvMAGIC(sv);
2481 if (!obj || obj == sv || how == '#' || how == 'r')
2485 mg->mg_obj = SvREFCNT_inc(obj);
2486 mg->mg_flags |= MGf_REFCOUNTED;
2489 mg->mg_len = namlen;
2492 mg->mg_ptr = savepvn(name, namlen);
2493 else if (namlen == HEf_SVKEY)
2494 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2498 mg->mg_virtual = &vtbl_sv;
2502 mg->mg_virtual = &vtbl_amagic;
2505 mg->mg_virtual = &vtbl_amagicelem;
2510 #endif /* OVERLOAD */
2512 mg->mg_virtual = &vtbl_bm;
2515 mg->mg_virtual = &vtbl_env;
2518 mg->mg_virtual = &vtbl_fm;
2521 mg->mg_virtual = &vtbl_envelem;
2524 mg->mg_virtual = &vtbl_mglob;
2527 mg->mg_virtual = &vtbl_isa;
2530 mg->mg_virtual = &vtbl_isaelem;
2533 mg->mg_virtual = &vtbl_nkeys;
2540 mg->mg_virtual = &vtbl_dbline;
2544 mg->mg_virtual = &vtbl_mutex;
2546 #endif /* USE_THREADS */
2547 #ifdef USE_LOCALE_COLLATE
2549 mg->mg_virtual = &vtbl_collxfrm;
2551 #endif /* USE_LOCALE_COLLATE */
2553 mg->mg_virtual = &vtbl_pack;
2557 mg->mg_virtual = &vtbl_packelem;
2560 mg->mg_virtual = &vtbl_regexp;
2563 mg->mg_virtual = &vtbl_sig;
2566 mg->mg_virtual = &vtbl_sigelem;
2569 mg->mg_virtual = &vtbl_taint;
2573 mg->mg_virtual = &vtbl_uvar;
2576 mg->mg_virtual = &vtbl_vec;
2579 mg->mg_virtual = &vtbl_substr;
2582 mg->mg_virtual = &vtbl_defelem;
2585 mg->mg_virtual = &vtbl_glob;
2588 mg->mg_virtual = &vtbl_arylen;
2591 mg->mg_virtual = &vtbl_pos;
2593 case '~': /* Reserved for use by extensions not perl internals. */
2594 /* Useful for attaching extension internal data to perl vars. */
2595 /* Note that multiple extensions may clash if magical scalars */
2596 /* etc holding private data from one are passed to another. */
2600 croak("Don't know how to handle magic of type '%c'", how);
2604 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2608 sv_unmagic(SV *sv, int type)
2612 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2615 for (mg = *mgp; mg; mg = *mgp) {
2616 if (mg->mg_type == type) {
2617 MGVTBL* vtbl = mg->mg_virtual;
2618 *mgp = mg->mg_moremagic;
2619 if (vtbl && (vtbl->svt_free != NULL))
2620 (VTBL->svt_free)(sv, mg);
2621 if (mg->mg_ptr && mg->mg_type != 'g')
2622 if (mg->mg_len >= 0)
2623 Safefree(mg->mg_ptr);
2624 else if (mg->mg_len == HEf_SVKEY)
2625 SvREFCNT_dec((SV*)mg->mg_ptr);
2626 if (mg->mg_flags & MGf_REFCOUNTED)
2627 SvREFCNT_dec(mg->mg_obj);
2631 mgp = &mg->mg_moremagic;
2635 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2642 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2646 register char *midend;
2647 register char *bigend;
2653 croak("Can't modify non-existent substring");
2654 SvPV_force(bigstr, curlen);
2655 if (offset + len > curlen) {
2656 SvGROW(bigstr, offset+len+1);
2657 Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
2658 SvCUR_set(bigstr, offset+len);
2661 i = littlelen - len;
2662 if (i > 0) { /* string might grow */
2663 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2664 mid = big + offset + len;
2665 midend = bigend = big + SvCUR(bigstr);
2668 while (midend > mid) /* shove everything down */
2669 *--bigend = *--midend;
2670 Move(little,big+offset,littlelen,char);
2676 Move(little,SvPVX(bigstr)+offset,len,char);
2681 big = SvPVX(bigstr);
2684 bigend = big + SvCUR(bigstr);
2686 if (midend > bigend)
2687 croak("panic: sv_insert");
2689 if (mid - big > bigend - midend) { /* faster to shorten from end */
2691 Move(little, mid, littlelen,char);
2694 i = bigend - midend;
2696 Move(midend, mid, i,char);
2700 SvCUR_set(bigstr, mid - big);
2703 else if (i = mid - big) { /* faster from front */
2704 midend -= littlelen;
2706 sv_chop(bigstr,midend-i);
2711 Move(little, mid, littlelen,char);
2713 else if (littlelen) {
2714 midend -= littlelen;
2715 sv_chop(bigstr,midend);
2716 Move(little,midend,littlelen,char);
2719 sv_chop(bigstr,midend);
2724 /* make sv point to what nstr did */
2727 sv_replace(register SV *sv, register SV *nsv)
2729 U32 refcnt = SvREFCNT(sv);
2730 SV_CHECK_THINKFIRST(sv);
2731 if (SvREFCNT(nsv) != 1)
2732 warn("Reference miscount in sv_replace()");
2733 if (SvMAGICAL(sv)) {
2737 sv_upgrade(nsv, SVt_PVMG);
2738 SvMAGIC(nsv) = SvMAGIC(sv);
2739 SvFLAGS(nsv) |= SvMAGICAL(sv);
2745 assert(!SvREFCNT(sv));
2746 StructCopy(nsv,sv,SV);
2747 SvREFCNT(sv) = refcnt;
2748 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2753 sv_clear(register SV *sv)
2757 assert(SvREFCNT(sv) == 0);
2761 if (defstash) { /* Still have a symbol table? */
2766 Zero(&tmpref, 1, SV);
2767 sv_upgrade(&tmpref, SVt_RV);
2769 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2770 SvREFCNT(&tmpref) = 1;
2773 stash = SvSTASH(sv);
2774 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2777 PUSHSTACK(SI_DESTROY);
2778 SvRV(&tmpref) = SvREFCNT_inc(sv);
2783 perl_call_sv((SV*)GvCV(destructor),
2784 G_DISCARD|G_EVAL|G_KEEPERR);
2789 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2791 del_XRV(SvANY(&tmpref));
2795 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2796 SvOBJECT_off(sv); /* Curse the object. */
2797 if (SvTYPE(sv) != SVt_PVIO)
2798 --sv_objcount; /* XXX Might want something more general */
2802 croak("DESTROY created new reference to dead object");
2803 /* DESTROY gave object new lease on life */
2807 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2810 switch (SvTYPE(sv)) {
2812 if (IoIFP(sv) != PerlIO_stdin() &&
2813 IoIFP(sv) != PerlIO_stdout() &&
2814 IoIFP(sv) != PerlIO_stderr())
2816 Safefree(IoTOP_NAME(sv));
2817 Safefree(IoFMT_NAME(sv));
2818 Safefree(IoBOTTOM_NAME(sv));
2834 Safefree(GvNAME(sv));
2835 /* cannot decrease stash refcount yet, as we might recursively delete
2836 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2837 of stash until current sv is completely gone.
2838 -- JohnPC, 27 Mar 1998 */
2839 stash = GvSTASH(sv);
2846 (void)SvOOK_off(sv);
2851 SvREFCNT_dec(SvRV(sv));
2852 else if (SvPVX(sv) && SvLEN(sv))
2853 Safefree(SvPVX(sv));
2863 switch (SvTYPE(sv)) {
2879 del_XPVIV(SvANY(sv));
2882 del_XPVNV(SvANY(sv));
2885 del_XPVMG(SvANY(sv));
2888 del_XPVLV(SvANY(sv));
2891 del_XPVAV(SvANY(sv));
2894 del_XPVHV(SvANY(sv));
2897 del_XPVCV(SvANY(sv));
2900 del_XPVGV(SvANY(sv));
2901 /* code duplication for increased performance. */
2902 SvFLAGS(sv) &= SVf_BREAK;
2903 SvFLAGS(sv) |= SVTYPEMASK;
2904 /* decrease refcount of the stash that owns this GV, if any */
2906 SvREFCNT_dec(stash);
2907 return; /* not break, SvFLAGS reset already happened */
2909 del_XPVBM(SvANY(sv));
2912 del_XPVFM(SvANY(sv));
2915 del_XPVIO(SvANY(sv));
2918 SvFLAGS(sv) &= SVf_BREAK;
2919 SvFLAGS(sv) |= SVTYPEMASK;
2926 ATOMIC_INC(SvREFCNT(sv));
2933 int refcount_is_zero;
2937 if (SvREADONLY(sv)) {
2938 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2941 if (SvREFCNT(sv) == 0) {
2942 if (SvFLAGS(sv) & SVf_BREAK)
2944 if (in_clean_all) /* All is fair */
2946 warn("Attempt to free unreferenced scalar");
2949 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
2950 if (!refcount_is_zero)
2954 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2964 sv_len(register SV *sv)
2973 len = mg_length(sv);
2975 junk = SvPV(sv, len);
2980 sv_eq(register SV *str1, register SV *str2)
2992 pv1 = SvPV(str1, cur1);
2997 pv2 = SvPV(str2, cur2);
3002 return memEQ(pv1, pv2, cur1);
3006 sv_cmp(register SV *str1, register SV *str2)
3009 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
3011 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3015 return cur2 ? -1 : 0;
3020 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3023 return retval < 0 ? -1 : 1;
3028 return cur1 < cur2 ? -1 : 1;
3032 sv_cmp_locale(register SV *sv1, register SV *sv2)
3034 #ifdef USE_LOCALE_COLLATE
3040 if (collation_standard)
3044 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3046 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3048 if (!pv1 || !len1) {
3059 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3062 return retval < 0 ? -1 : 1;
3065 * When the result of collation is equality, that doesn't mean
3066 * that there are no differences -- some locales exclude some
3067 * characters from consideration. So to avoid false equalities,
3068 * we use the raw string as a tiebreaker.
3074 #endif /* USE_LOCALE_COLLATE */
3076 return sv_cmp(sv1, sv2);
3079 #ifdef USE_LOCALE_COLLATE
3081 * Any scalar variable may carry an 'o' magic that contains the
3082 * scalar data of the variable transformed to such a format that
3083 * a normal memory comparison can be used to compare the data
3084 * according to the locale settings.
3087 sv_collxfrm(SV *sv, STRLEN *nxp)
3091 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3092 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3097 Safefree(mg->mg_ptr);
3099 if ((xf = mem_collxfrm(s, len, &xlen))) {
3100 if (SvREADONLY(sv)) {
3103 return xf + sizeof(collation_ix);
3106 sv_magic(sv, 0, 'o', 0, 0);
3107 mg = mg_find(sv, 'o');
3120 if (mg && mg->mg_ptr) {
3122 return mg->mg_ptr + sizeof(collation_ix);
3130 #endif /* USE_LOCALE_COLLATE */
3133 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3138 register STDCHAR rslast;
3139 register STDCHAR *bp;
3143 SV_CHECK_THINKFIRST(sv);
3144 (void)SvUPGRADE(sv, SVt_PV);
3151 else if (RsPARA(rs)) {
3156 rsptr = SvPV(rs, rslen);
3157 rslast = rslen ? rsptr[rslen - 1] : '\0';
3159 if (RsPARA(rs)) { /* have to do this both before and after */
3160 do { /* to make sure file boundaries work right */
3163 i = PerlIO_getc(fp);
3167 PerlIO_ungetc(fp,i);
3173 /* See if we know enough about I/O mechanism to cheat it ! */
3175 /* This used to be #ifdef test - it is made run-time test for ease
3176 of abstracting out stdio interface. One call should be cheap
3177 enough here - and may even be a macro allowing compile
3181 if (PerlIO_fast_gets(fp)) {
3184 * We're going to steal some values from the stdio struct
3185 * and put EVERYTHING in the innermost loop into registers.
3187 register STDCHAR *ptr;
3191 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3192 /* An ungetc()d char is handled separately from the regular
3193 * buffer, so we getc() it back out and stuff it in the buffer.
3195 i = PerlIO_getc(fp);
3196 if (i == EOF) return 0;
3197 *(--((*fp)->_ptr)) = (unsigned char) i;
3201 /* Here is some breathtakingly efficient cheating */
3203 cnt = PerlIO_get_cnt(fp); /* get count into register */
3204 (void)SvPOK_only(sv); /* validate pointer */
3205 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3206 if (cnt > 80 && SvLEN(sv) > append) {
3207 shortbuffered = cnt - SvLEN(sv) + append + 1;
3208 cnt -= shortbuffered;
3212 /* remember that cnt can be negative */
3213 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3218 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3219 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3220 DEBUG_P(PerlIO_printf(Perl_debug_log,
3221 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3222 DEBUG_P(PerlIO_printf(Perl_debug_log,
3223 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3224 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3225 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3230 while (cnt > 0) { /* this | eat */
3232 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3233 goto thats_all_folks; /* screams | sed :-) */
3237 Copy(ptr, bp, cnt, char); /* this | eat */
3238 bp += cnt; /* screams | dust */
3239 ptr += cnt; /* louder | sed :-) */
3244 if (shortbuffered) { /* oh well, must extend */
3245 cnt = shortbuffered;
3247 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3249 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3250 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3254 DEBUG_P(PerlIO_printf(Perl_debug_log,
3255 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3256 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3257 DEBUG_P(PerlIO_printf(Perl_debug_log,
3258 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3259 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3260 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3261 /* This used to call 'filbuf' in stdio form, but as that behaves like
3262 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3263 another abstraction. */
3264 i = PerlIO_getc(fp); /* get more characters */
3265 DEBUG_P(PerlIO_printf(Perl_debug_log,
3266 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3267 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3268 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3269 cnt = PerlIO_get_cnt(fp);
3270 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3271 DEBUG_P(PerlIO_printf(Perl_debug_log,
3272 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3274 if (i == EOF) /* all done for ever? */
3275 goto thats_really_all_folks;
3277 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3279 SvGROW(sv, bpx + cnt + 2);
3280 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3282 *bp++ = i; /* store character from PerlIO_getc */
3284 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3285 goto thats_all_folks;
3289 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3290 memNE((char*)bp - rslen, rsptr, rslen))
3291 goto screamer; /* go back to the fray */
3292 thats_really_all_folks:
3294 cnt += shortbuffered;
3295 DEBUG_P(PerlIO_printf(Perl_debug_log,
3296 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3297 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3298 DEBUG_P(PerlIO_printf(Perl_debug_log,
3299 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3300 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3301 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3303 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3304 DEBUG_P(PerlIO_printf(Perl_debug_log,
3305 "Screamer: done, len=%ld, string=|%.*s|\n",
3306 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3310 /*The big, slow, and stupid way */
3315 register STDCHAR *bpe = buf + sizeof(buf);
3317 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3318 ; /* keep reading */
3322 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3323 /* Accomodate broken VAXC compiler, which applies U8 cast to
3324 * both args of ?: operator, causing EOF to change into 255
3326 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3330 sv_catpvn(sv, (char *) buf, cnt);
3332 sv_setpvn(sv, (char *) buf, cnt);
3334 if (i != EOF && /* joy */
3336 SvCUR(sv) < rslen ||
3337 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3341 * If we're reading from a TTY and we get a short read,
3342 * indicating that the user hit his EOF character, we need
3343 * to notice it now, because if we try to read from the TTY
3344 * again, the EOF condition will disappear.
3346 * The comparison of cnt to sizeof(buf) is an optimization
3347 * that prevents unnecessary calls to feof().
3351 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3356 if (RsPARA(rs)) { /* have to do this both before and after */
3357 while (i != EOF) { /* to make sure file boundaries work right */
3358 i = PerlIO_getc(fp);
3360 PerlIO_ungetc(fp,i);
3367 win32_strip_return(sv);
3370 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3375 sv_inc(register SV *sv)
3382 if (SvTHINKFIRST(sv)) {
3383 if (SvREADONLY(sv)) {
3385 if (curcop != &compiling)
3390 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3391 #endif /* OVERLOAD */
3397 flags = SvFLAGS(sv);
3398 if (flags & SVp_NOK) {
3399 (void)SvNOK_only(sv);
3403 if (flags & SVp_IOK) {
3404 if (SvIVX(sv) == IV_MAX)
3405 sv_setnv(sv, (double)IV_MAX + 1.0);
3407 (void)SvIOK_only(sv);
3412 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3413 if ((flags & SVTYPEMASK) < SVt_PVNV)
3414 sv_upgrade(sv, SVt_NV);
3416 (void)SvNOK_only(sv);
3420 while (isALPHA(*d)) d++;
3421 while (isDIGIT(*d)) d++;
3423 SET_NUMERIC_STANDARD();
3424 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3428 while (d >= SvPVX(sv)) {
3438 *(d--) -= 'z' - 'a' + 1;
3441 /* oh,oh, the number grew */
3442 SvGROW(sv, SvCUR(sv) + 2);
3444 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3453 sv_dec(register SV *sv)
3459 if (SvTHINKFIRST(sv)) {
3460 if (SvREADONLY(sv)) {
3462 if (curcop != &compiling)
3467 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3468 #endif /* OVERLOAD */
3474 flags = SvFLAGS(sv);
3475 if (flags & SVp_NOK) {
3477 (void)SvNOK_only(sv);
3480 if (flags & SVp_IOK) {
3481 if (SvIVX(sv) == IV_MIN)
3482 sv_setnv(sv, (double)IV_MIN - 1.0);
3484 (void)SvIOK_only(sv);
3489 if (!(flags & SVp_POK)) {
3490 if ((flags & SVTYPEMASK) < SVt_PVNV)
3491 sv_upgrade(sv, SVt_NV);
3493 (void)SvNOK_only(sv);
3496 SET_NUMERIC_STANDARD();
3497 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3500 /* Make a string that will exist for the duration of the expression
3501 * evaluation. Actually, it may have to last longer than that, but
3502 * hopefully we won't free it until it has been assigned to a
3503 * permanent location. */
3509 tmps_max += (tmps_max < 512) ? 128 : 512;
3510 Renew(tmps_stack, tmps_max, SV*);
3514 sv_mortalcopy(SV *oldstr)
3523 sv_setsv(sv,oldstr);
3524 if (++tmps_ix >= tmps_max)
3526 tmps_stack[tmps_ix] = sv;
3540 SvFLAGS(sv) = SVs_TEMP;
3541 if (++tmps_ix >= tmps_max)
3543 tmps_stack[tmps_ix] = sv;
3547 /* same thing without the copying */
3550 sv_2mortal(register SV *sv)
3555 if (SvREADONLY(sv) && curcop != &compiling)
3557 if (++tmps_ix >= tmps_max)
3559 tmps_stack[tmps_ix] = sv;
3565 newSVpv(char *s, STRLEN len)
3575 sv_setpvn(sv,s,len);
3580 newSVpvn(char *s, STRLEN len)
3588 sv_setpvn(sv,s,len);
3594 newSVpvf(const char* pat, ...)
3598 newSVpvf(pat, va_alist)
3611 va_start(args, pat);
3615 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3657 sv_upgrade(sv, SVt_RV);
3659 SvRV(sv) = SvREFCNT_inc(tmpRef);
3667 Perl_newRV_noinc(SV *tmpRef)
3672 SvREFCNT_dec(tmpRef);
3676 /* make an exact duplicate of old */
3679 newSVsv(register SV *old)
3685 if (SvTYPE(old) == SVTYPEMASK) {
3686 warn("semi-panic: attempt to dup freed string");
3704 sv_reset(register char *s, HV *stash)
3717 if (!*s) { /* reset ?? searches */
3718 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3719 pm->op_pmdynflags &= ~PMdf_USED;
3724 /* reset variables */
3726 if (!HvARRAY(stash))
3729 Zero(todo, 256, char);
3736 for ( ; i <= max; i++) {
3739 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3740 for (entry = HvARRAY(stash)[i];
3742 entry = HeNEXT(entry)) {
3743 if (!todo[(U8)*HeKEY(entry)])
3745 gv = (GV*)HeVAL(entry);
3748 if (SvTYPE(sv) >= SVt_PV) {
3750 if (SvPVX(sv) != Nullch)
3757 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3759 #ifndef VMS /* VMS has no environ array */
3761 environ[0] = Nullch;
3775 switch (SvTYPE(sv)) {
3783 croak("Bad filehandle: %s", GvNAME(gv));
3787 croak(no_usym, "filehandle");
3789 return sv_2io(SvRV(sv));
3790 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3796 croak("Bad filehandle: %s", SvPV(sv,na));
3803 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3809 return *gvp = Nullgv, Nullcv;
3810 switch (SvTYPE(sv)) {
3830 if (SvTYPE(cv) != SVt_PVCV)
3831 croak("Not a subroutine reference");
3839 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3845 if (lref && !GvCVu(gv)) {
3848 tmpsv = NEWSV(704,0);
3849 gv_efullname3(tmpsv, gv, Nullch);
3850 newSUB(start_subparse(FALSE, 0),
3851 newSVOP(OP_CONST, 0, tmpsv),
3856 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3863 sv_true(register SV *sv)
3870 if ((tXpv = (XPV*)SvANY(sv)) &&
3871 (*tXpv->xpv_pv > '0' ||
3872 tXpv->xpv_cur > 1 ||
3873 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3880 return SvIVX(sv) != 0;
3883 return SvNVX(sv) != 0.0;
3885 return sv_2bool(sv);
3891 sv_iv(register SV *sv)
3899 sv_uv(register SV *sv)
3907 sv_nv(register SV *sv)
3915 sv_pvn(SV *sv, STRLEN *lp)
3921 return sv_2pv(sv, lp);
3925 sv_pvn_force(SV *sv, STRLEN *lp)
3929 if (SvREADONLY(sv)) {
3931 if (curcop != &compiling)
3939 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3940 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3947 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3948 op_name[op->op_type]);
3953 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3958 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3959 SvGROW(sv, len + 1);
3960 Move(s,SvPVX(sv),len,char);
3965 SvPOK_on(sv); /* validate pointer */
3967 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3968 (unsigned long)sv,SvPVX(sv)));
3975 sv_reftype(SV *sv, int ob)
3977 if (ob && SvOBJECT(sv))
3978 return HvNAME(SvSTASH(sv));
3980 switch (SvTYPE(sv)) {
3994 case SVt_PVLV: return "LVALUE";
3995 case SVt_PVAV: return "ARRAY";
3996 case SVt_PVHV: return "HASH";
3997 case SVt_PVCV: return "CODE";
3998 case SVt_PVGV: return "GLOB";
3999 case SVt_PVFM: return "FORMLINE";
4000 default: return "UNKNOWN";
4021 sv_isa(SV *sv, char *name)
4033 return strEQ(HvNAME(SvSTASH(sv)), name);
4037 newSVrv(SV *rv, char *classname)
4047 SV_CHECK_THINKFIRST(rv);
4050 #endif /* OVERLOAD */
4052 if (SvTYPE(rv) < SVt_RV)
4053 sv_upgrade(rv, SVt_RV);
4056 SvRV(rv) = SvREFCNT_inc(sv);
4060 HV* stash = gv_stashpv(classname, TRUE);
4061 (void)sv_bless(rv, stash);
4067 sv_setref_pv(SV *rv, char *classname, void *pv)
4070 sv_setsv(rv, &sv_undef);
4074 sv_setiv(newSVrv(rv,classname), (IV)pv);
4079 sv_setref_iv(SV *rv, char *classname, IV iv)
4081 sv_setiv(newSVrv(rv,classname), iv);
4086 sv_setref_nv(SV *rv, char *classname, double nv)
4088 sv_setnv(newSVrv(rv,classname), nv);
4093 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4095 sv_setpvn(newSVrv(rv,classname), pv, n);
4100 sv_bless(SV *sv, HV *stash)
4105 croak("Can't bless non-reference value");
4107 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4108 if (SvREADONLY(tmpRef))
4110 if (SvOBJECT(tmpRef)) {
4111 if (SvTYPE(tmpRef) != SVt_PVIO)
4113 SvREFCNT_dec(SvSTASH(tmpRef));
4116 SvOBJECT_on(tmpRef);
4117 if (SvTYPE(tmpRef) != SVt_PVIO)
4119 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4120 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4127 #endif /* OVERLOAD */
4135 assert(SvTYPE(sv) == SVt_PVGV);
4140 SvREFCNT_dec(GvSTASH(sv));
4141 GvSTASH(sv) = Nullhv;
4143 sv_unmagic(sv, '*');
4144 Safefree(GvNAME(sv));
4146 SvFLAGS(sv) &= ~SVTYPEMASK;
4147 SvFLAGS(sv) |= SVt_PVMG;
4157 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4160 sv_2mortal(rv); /* Schedule for freeing later */
4166 sv_magic((sv), Nullsv, 't', Nullch, 0);
4172 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4173 MAGIC *mg = mg_find(sv, 't');
4182 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4183 MAGIC *mg = mg_find(sv, 't');
4184 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4191 sv_setpviv(SV *sv, IV iv)
4194 char buf[TYPE_DIGITS(UV)];
4195 char *ptr = buf + sizeof(buf);
4200 sv_setpvn(sv, "", 0);
4209 *--ptr = '0' + (uv % 10);
4211 len = (buf + sizeof(buf)) - ptr;
4212 /* taking advantage of SvCUR(sv) == 0 */
4213 SvGROW(sv, sign + len + 1);
4217 memcpy(p, ptr, len);
4220 SvCUR(sv) = p - SvPVX(sv);
4225 sv_setpviv_mg(SV *sv, IV iv)
4233 sv_setpvf(SV *sv, const char* pat, ...)
4237 sv_setpvf(sv, pat, va_alist)
4245 va_start(args, pat);
4249 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4256 sv_setpvf_mg(SV *sv, const char* pat, ...)
4260 sv_setpvf_mg(sv, pat, va_alist)
4268 va_start(args, pat);
4272 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4279 sv_catpvf(SV *sv, const char* pat, ...)
4283 sv_catpvf(sv, pat, va_alist)
4291 va_start(args, pat);
4295 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4301 sv_catpvf_mg(SV *sv, const char* pat, ...)
4305 sv_catpvf_mg(sv, pat, va_alist)
4313 va_start(args, pat);
4317 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4323 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4325 sv_setpvn(sv, "", 0);
4326 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4330 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4338 static char nullstr[] = "(null)";
4340 /* no matter what, this is a string now */
4341 (void)SvPV_force(sv, origlen);
4343 /* special-case "", "%s", and "%_" */
4346 if (patlen == 2 && pat[0] == '%') {
4350 char *s = va_arg(*args, char*);
4351 sv_catpv(sv, s ? s : nullstr);
4353 else if (svix < svmax)
4354 sv_catsv(sv, *svargs);
4358 sv_catsv(sv, va_arg(*args, SV*));
4361 /* See comment on '_' below */
4366 patend = (char*)pat + patlen;
4367 for (p = (char*)pat; p < patend; p = q) {
4375 bool has_precis = FALSE;
4379 STRLEN esignlen = 0;
4381 char *eptr = Nullch;
4383 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4385 static char *efloatbuf = Nullch;
4386 static STRLEN efloatsize = 0;
4398 for (q = p; q < patend && *q != '%'; ++q) ;
4400 sv_catpvn(sv, p, q - p);
4438 case '1': case '2': case '3':
4439 case '4': case '5': case '6':
4440 case '7': case '8': case '9':
4443 width = width * 10 + (*q++ - '0');
4448 i = va_arg(*args, int);
4450 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4452 width = (i < 0) ? -i : i;
4463 i = va_arg(*args, int);
4465 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4466 precis = (i < 0) ? 0 : i;
4472 precis = precis * 10 + (*q++ - '0');
4481 #if 0 /* when quads have better support within Perl */
4482 if (*(q + 1) == 'l') {
4508 c = va_arg(*args, int);
4510 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4517 eptr = va_arg(*args, char*);
4519 elen = strlen(eptr);
4522 elen = sizeof nullstr - 1;
4525 else if (svix < svmax)
4526 eptr = SvPVx(svargs[svix++], elen);
4531 * The "%_" hack might have to be changed someday,
4532 * if ISO or ANSI decide to use '_' for something.
4533 * So we keep it hidden from users' code.
4537 eptr = SvPVx(va_arg(*args, SV*), elen);
4540 if (has_precis && elen > precis)
4548 uv = (UV)va_arg(*args, void*);
4550 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4561 case 'h': iv = (short)va_arg(*args, int); break;
4562 default: iv = va_arg(*args, int); break;
4563 case 'l': iv = va_arg(*args, long); break;
4564 case 'V': iv = va_arg(*args, IV); break;
4568 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4570 case 'h': iv = (short)iv; break;
4571 default: iv = (int)iv; break;
4572 case 'l': iv = (long)iv; break;
4579 esignbuf[esignlen++] = plus;
4583 esignbuf[esignlen++] = '-';
4609 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4610 default: uv = va_arg(*args, unsigned); break;
4611 case 'l': uv = va_arg(*args, unsigned long); break;
4612 case 'V': uv = va_arg(*args, UV); break;
4616 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4618 case 'h': uv = (unsigned short)uv; break;
4619 default: uv = (unsigned)uv; break;
4620 case 'l': uv = (unsigned long)uv; break;
4626 eptr = ebuf + sizeof ebuf;
4632 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4638 esignbuf[esignlen++] = '0';
4639 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4645 *--eptr = '0' + dig;
4647 if (alt && *eptr != '0')
4650 default: /* it had better be ten or less */
4653 *--eptr = '0' + dig;
4654 } while (uv /= base);
4657 elen = (ebuf + sizeof ebuf) - eptr;
4660 zeros = precis - elen;
4661 else if (precis == 0 && elen == 1 && *eptr == '0')
4666 /* FLOATING POINT */
4669 c = 'f'; /* maybe %F isn't supported here */
4675 /* This is evil, but floating point is even more evil */
4678 nv = va_arg(*args, double);
4680 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4683 if (c != 'e' && c != 'E') {
4685 (void)frexp(nv, &i);
4686 if (i == PERL_INT_MIN)
4687 die("panic: frexp");
4689 need = BIT_DIGITS(i);
4691 need += has_precis ? precis : 6; /* known default */
4695 need += 20; /* fudge factor */
4696 if (efloatsize < need) {
4697 Safefree(efloatbuf);
4698 efloatsize = need + 20; /* more fudge */
4699 New(906, efloatbuf, efloatsize, char);
4702 eptr = ebuf + sizeof ebuf;
4707 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4712 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4724 (void)sprintf(efloatbuf, eptr, nv);
4727 elen = strlen(efloatbuf);
4731 * User-defined locales may include arbitrary characters.
4732 * And, unfortunately, some system may alloc the "C" locale
4733 * to be overridden by a malicious user.
4736 *used_locale = TRUE;
4737 #endif /* LC_NUMERIC */
4744 i = SvCUR(sv) - origlen;
4747 case 'h': *(va_arg(*args, short*)) = i; break;
4748 default: *(va_arg(*args, int*)) = i; break;
4749 case 'l': *(va_arg(*args, long*)) = i; break;
4750 case 'V': *(va_arg(*args, IV*)) = i; break;
4753 else if (svix < svmax)
4754 sv_setuv(svargs[svix++], (UV)i);
4755 continue; /* not "break" */
4761 if (!args && dowarn &&
4762 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4763 SV *msg = sv_newmortal();
4764 sv_setpvf(msg, "Invalid conversion in %s: ",
4765 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4767 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4770 sv_catpv(msg, "end of string");
4771 warn("%_", msg); /* yes, this is reentrant */
4774 /* output mangled stuff ... */
4780 /* ... right here, because formatting flags should not apply */
4781 SvGROW(sv, SvCUR(sv) + elen + 1);
4783 memcpy(p, eptr, elen);
4786 SvCUR(sv) = p - SvPVX(sv);
4787 continue; /* not "break" */
4790 have = esignlen + zeros + elen;
4791 need = (have > width ? have : width);
4794 SvGROW(sv, SvCUR(sv) + need + 1);
4796 if (esignlen && fill == '0') {
4797 for (i = 0; i < esignlen; i++)
4801 memset(p, fill, gap);
4804 if (esignlen && fill != '0') {
4805 for (i = 0; i < esignlen; i++)
4809 for (i = zeros; i; i--)
4813 memcpy(p, eptr, elen);
4817 memset(p, ' ', gap);
4821 SvCUR(sv) = p - SvPVX(sv);
4829 SV *d = sv_newmortal();
4835 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4839 flags = SvFLAGS(sv);
4842 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4843 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4844 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4845 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4846 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4847 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4848 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4849 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4850 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4851 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4853 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4854 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4855 if (flags & SVf_POK) sv_catpv(d, "POK,");
4856 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4857 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4858 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4859 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4862 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4863 #endif /* OVERLOAD */
4864 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4865 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4866 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4867 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4872 if (CvANON(sv)) sv_catpv(d, "ANON,");
4873 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4874 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4875 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4876 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4879 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4880 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4883 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4884 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4885 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4886 if (GvIMPORTED(sv)) {
4887 sv_catpv(d, "IMPORT");
4888 if (GvIMPORTED(sv) == GVf_IMPORTED)
4889 sv_catpv(d, "ALL,");
4892 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4893 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4894 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4895 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4900 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4901 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4905 if (*(SvEND(d) - 1) == ',')
4906 SvPVX(d)[--SvCUR(d)] = '\0';
4910 PerlIO_printf(Perl_debug_log, "SV = ");
4913 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4916 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4919 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4922 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4925 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4928 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4931 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4934 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4937 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4940 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4943 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4946 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4949 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4952 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4955 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4958 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4961 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4964 if (type >= SVt_PVIV || type == SVt_IV)
4965 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4966 if (type >= SVt_PVNV || type == SVt_NV) {
4967 SET_NUMERIC_STANDARD();
4968 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4971 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4977 if (type <= SVt_PVLV) {
4979 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4980 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4982 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4984 if (type >= SVt_PVMG) {
4986 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4989 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4993 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4994 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4995 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4996 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4997 sv_dump(LvTARG(sv));
5000 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
5001 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
5002 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
5003 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
5004 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
5005 flags = AvFLAGS(sv);
5007 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
5008 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
5009 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
5010 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
5011 SvCUR(d) ? SvPVX(d) + 1 : "");
5014 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
5015 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
5016 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
5017 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
5018 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
5019 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5021 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5023 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5027 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
5030 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5031 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5032 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5033 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5034 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5035 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5036 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5037 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5039 PerlIO_printf(Perl_debug_log, "\n");
5041 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5042 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5043 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5044 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5046 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5047 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5048 #endif /* USE_THREADS */
5049 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5050 (unsigned long)CvFLAGS(sv));
5051 if (type == SVt_PVFM)
5052 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5055 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5056 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5057 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5058 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5059 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5060 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5061 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5062 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5063 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5064 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5065 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5066 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5067 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5068 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5069 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5070 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5071 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5074 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5075 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5076 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5077 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5078 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5079 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5080 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5081 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5082 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5083 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5084 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5085 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5086 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5087 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5088 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5089 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
5092 #endif /* DEBUGGING */