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__)
43 static IV asIV _((SV* sv));
44 static UV asUV _((SV* sv));
45 static SV *more_sv _((void));
46 static XPVIV *more_xiv _((void));
47 static XPVNV *more_xnv _((void));
48 static XPV *more_xpv _((void));
49 static XRV *more_xrv _((void));
50 static XPVIV *new_xiv _((void));
51 static XPVNV *new_xnv _((void));
52 static XPV *new_xpv _((void));
53 static XRV *new_xrv _((void));
54 static void del_xiv _((XPVIV* p));
55 static void del_xnv _((XPVNV* p));
56 static void del_xpv _((XPV* p));
57 static void del_xrv _((XRV* p));
58 static void sv_mortalgrow _((void));
59 static void sv_unglob _((SV* sv));
60 static void sv_check_thinkfirst _((SV *sv));
62 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv)
65 static void *my_safemalloc(MEM_SIZE size);
68 typedef void (*SVFUNC) _((SV*));
75 (p) = (SV*)safemalloc(sizeof(SV)); \
84 Safefree((char*)(p)); \
91 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
93 #define REG_REPLACE(sv,a,b) \
95 void* p = sv->sv_any; \
96 I32 h = REGHASH(sv, regsize); \
98 while (registry[i] != (a)) { \
102 die("SV registry bug"); \
107 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
108 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
114 if (sv_count >= (regsize >> 1))
116 SV **oldreg = registry;
117 I32 oldsize = regsize;
119 regsize = regsize ? ((regsize << 2) + 1) : 2037;
120 Newz(707, registry, regsize, SV*);
125 for (i = 0; i < oldsize; ++i) {
126 SV* oldsv = oldreg[i];
152 for (i = 0; i < regsize; ++i) {
153 SV* sv = registry[i];
160 sv_add_arena(ptr, size, flags)
165 if (!(flags & SVf_FAKE))
172 * "A time to plant, and a time to uproot what was planted..."
175 #define plant_SV(p) \
177 SvANY(p) = (void *)sv_root; \
178 SvFLAGS(p) = SVTYPEMASK; \
183 /* sv_mutex must be held while calling uproot_SV() */
184 #define uproot_SV(p) \
187 sv_root = (SV*)SvANY(p); \
191 #define new_SV(p) do { \
202 #define del_SV(p) do { \
219 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
221 svend = &sva[SvREFCNT(sva)];
222 if (p >= sv && p < svend)
226 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
233 #else /* ! DEBUGGING */
235 #define del_SV(p) plant_SV(p)
237 #endif /* DEBUGGING */
240 sv_add_arena(char *ptr, U32 size, U32 flags)
245 Zero(sva, size, char);
247 /* The first SV in an arena isn't an SV. */
248 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
249 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
250 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
255 svend = &sva[SvREFCNT(sva) - 1];
258 SvANY(sv) = (void *)(SV*)(sv + 1);
259 SvFLAGS(sv) = SVTYPEMASK;
263 SvFLAGS(sv) = SVTYPEMASK;
266 /* sv_mutex must be held while calling more_sv() */
273 sv_add_arena(nice_chunk, nice_chunk_size, 0);
277 char *chunk; /* must use New here to match call to */
278 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
279 sv_add_arena(chunk, 1008, 0);
292 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
293 svend = &sva[SvREFCNT(sva)];
294 for (sv = sva + 1; sv < svend; ++sv) {
295 if (SvTYPE(sv) != SVTYPEMASK)
304 do_report_used(SV *sv)
306 if (SvTYPE(sv) != SVTYPEMASK) {
307 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
308 PerlIO_printf(PerlIO_stderr(), "****\n");
316 visit(do_report_used);
320 do_clean_objs(SV *sv)
324 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
325 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
331 /* XXX Might want to check arrays, etc. */
334 #ifndef DISABLE_DESTRUCTOR_KLUDGE
336 do_clean_named_objs(SV *sv)
338 if (SvTYPE(sv) == SVt_PVGV) {
339 if ( SvOBJECT(GvSV(sv)) ||
340 GvAV(sv) && SvOBJECT(GvAV(sv)) ||
341 GvHV(sv) && SvOBJECT(GvHV(sv)) ||
342 GvIO(sv) && SvOBJECT(GvIO(sv)) ||
343 GvCV(sv) && SvOBJECT(GvCV(sv)) )
345 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
349 do_clean_objs(GvSV(sv));
354 static bool in_clean_objs = FALSE;
359 in_clean_objs = TRUE;
360 #ifndef DISABLE_DESTRUCTOR_KLUDGE
361 visit(do_clean_named_objs);
363 visit(do_clean_objs);
364 in_clean_objs = FALSE;
370 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
371 SvFLAGS(sv) |= SVf_BREAK;
375 static bool in_clean_all = FALSE;
382 in_clean_all = FALSE;
391 /* Free arenas here, but be careful about fake ones. (We assume
392 contiguity of the fake ones with the corresponding real ones.) */
394 for (sva = sv_arenaroot; sva; sva = svanext) {
395 svanext = (SV*) SvANY(sva);
396 while (svanext && SvFAKE(svanext))
397 svanext = (SV*) SvANY(svanext);
400 Safefree((void *)sva);
414 * See comment in more_xiv() -- RAM.
416 xiv_root = (IV**)*xiv;
417 return (XPVIV*)((char*)xiv - sizeof(XPV));
425 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
426 *xiv = (IV *)xiv_root;
434 register IV** xivend;
436 New(705, ptr, 1008/sizeof(XPV), XPV);
437 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
438 xiv_arenaroot = ptr; /* to keep Purify happy */
441 xivend = &xiv[1008 / sizeof(IV *) - 1];
442 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
444 while (xiv < xivend) {
445 *xiv = (IV *)(xiv + 1);
458 xnv_root = *(double**)xnv;
459 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
467 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
468 *(double**)xnv = xnv_root;
475 register double* xnv;
476 register double* xnvend;
477 New(711, xnv, 1008/sizeof(double), double);
478 xnvend = &xnv[1008 / sizeof(double) - 1];
479 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
481 while (xnv < xnvend) {
482 *(double**)xnv = (double*)(xnv + 1);
495 xrv_root = (XRV*)xrv->xrv_rv;
504 p->xrv_rv = (SV*)xrv_root;
512 register XRV* xrvend;
513 New(712, xrv_root, 1008/sizeof(XRV), XRV);
515 xrvend = &xrv[1008 / sizeof(XRV) - 1];
516 while (xrv < xrvend) {
517 xrv->xrv_rv = (SV*)(xrv + 1);
530 xpv_root = (XPV*)xpv->xpv_pv;
539 p->xpv_pv = (char*)xpv_root;
547 register XPV* xpvend;
548 New(713, xpv_root, 1008/sizeof(XPV), XPV);
550 xpvend = &xpv[1008 / sizeof(XPV) - 1];
551 while (xpv < xpvend) {
552 xpv->xpv_pv = (char*)(xpv + 1);
560 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
561 #define del_XIV(p) Safefree((char*)p)
563 #define new_XIV() (void*)new_xiv()
564 #define del_XIV(p) del_xiv((XPVIV*) p)
568 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
569 #define del_XNV(p) Safefree((char*)p)
571 #define new_XNV() (void*)new_xnv()
572 #define del_XNV(p) del_xnv((XPVNV*) p)
576 #define new_XRV() (void*)safemalloc(sizeof(XRV))
577 #define del_XRV(p) Safefree((char*)p)
579 #define new_XRV() (void*)new_xrv()
580 #define del_XRV(p) del_xrv((XRV*) p)
584 #define new_XPV() (void*)safemalloc(sizeof(XPV))
585 #define del_XPV(p) Safefree((char*)p)
587 #define new_XPV() (void*)new_xpv()
588 #define del_XPV(p) del_xpv((XPV *)p)
592 # define my_safemalloc(s) safemalloc(s)
593 # define my_safefree(s) free(s)
596 my_safemalloc(MEM_SIZE size)
599 New(717, p, size, char);
602 # define my_safefree(s) Safefree(s)
605 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
606 #define del_XPVIV(p) my_safefree((char*)p)
608 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
609 #define del_XPVNV(p) my_safefree((char*)p)
611 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
612 #define del_XPVMG(p) my_safefree((char*)p)
614 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
615 #define del_XPVLV(p) my_safefree((char*)p)
617 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
618 #define del_XPVAV(p) my_safefree((char*)p)
620 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
621 #define del_XPVHV(p) my_safefree((char*)p)
623 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
624 #define del_XPVCV(p) my_safefree((char*)p)
626 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
627 #define del_XPVGV(p) my_safefree((char*)p)
629 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
630 #define del_XPVBM(p) my_safefree((char*)p)
632 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
633 #define del_XPVFM(p) my_safefree((char*)p)
635 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
636 #define del_XPVIO(p) my_safefree((char*)p)
639 sv_upgrade(register SV *sv, U32 mt)
649 if (SvTYPE(sv) == mt)
655 switch (SvTYPE(sv)) {
670 nv = (double)SvIVX(sv);
676 else if (mt < SVt_PVIV)
693 pv = (char*)SvRV(sv);
697 nv = (double)(unsigned long)pv;
713 else if (mt == SVt_NV)
724 del_XPVIV(SvANY(sv));
734 del_XPVNV(SvANY(sv));
744 del_XPVMG(SvANY(sv));
747 croak("Can't upgrade that kind of scalar");
752 croak("Can't upgrade to undef");
754 SvANY(sv) = new_XIV();
758 SvANY(sv) = new_XNV();
762 SvANY(sv) = new_XRV();
766 SvANY(sv) = new_XPV();
772 SvANY(sv) = new_XPVIV();
782 SvANY(sv) = new_XPVNV();
790 SvANY(sv) = new_XPVMG();
800 SvANY(sv) = new_XPVLV();
814 SvANY(sv) = new_XPVAV();
829 SvANY(sv) = new_XPVHV();
845 SvANY(sv) = new_XPVCV();
846 Zero(SvANY(sv), 1, XPVCV);
856 SvANY(sv) = new_XPVGV();
871 SvANY(sv) = new_XPVBM();
884 SvANY(sv) = new_XPVFM();
885 Zero(SvANY(sv), 1, XPVFM);
895 SvANY(sv) = new_XPVIO();
896 Zero(SvANY(sv), 1, XPVIO);
907 SvFLAGS(sv) &= ~SVTYPEMASK;
916 SV *t = sv_newmortal();
926 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
930 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
931 if (sv == &sv_undef) {
932 sv_catpv(t, "SV_UNDEF");
933 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
934 SVs_GMG|SVs_SMG|SVs_RMG)) &&
938 else if (sv == &sv_no) {
939 sv_catpv(t, "SV_NO");
940 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
941 SVs_GMG|SVs_SMG|SVs_RMG)) &&
942 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
949 sv_catpv(t, "SV_YES");
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|
955 SvPVX(sv) && *SvPVX(sv) == '1' &&
961 else if (SvREFCNT(sv) == 0) {
967 if (SvCUR(t) + unref > 10) {
968 SvCUR(t) = unref + 3;
976 switch (SvTYPE(sv)) {
978 sv_catpv(t, "FREED");
982 sv_catpv(t, "UNDEF");
1000 sv_catpv(t, "PVNV");
1003 sv_catpv(t, "PVMG");
1006 sv_catpv(t, "PVLV");
1016 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1018 sv_catpv(t, "CV()");
1036 sv_catpv(t, "(null)");
1038 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1040 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1042 else if (SvNOKp(sv)) {
1043 SET_NUMERIC_STANDARD();
1044 sv_catpvf(t, "(%g)",SvNVX(sv));
1046 else if (SvIOKp(sv))
1047 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1061 sv_backoff(register SV *sv)
1065 char *s = SvPVX(sv);
1066 SvLEN(sv) += SvIVX(sv);
1067 SvPVX(sv) -= SvIVX(sv);
1069 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1071 SvFLAGS(sv) &= ~SVf_OOK;
1077 sv_grow(register SV *sv, register I32 newlen)
1079 sv_grow(SV* sv, unsigned long newlen)
1084 #ifdef HAS_64K_LIMIT
1085 if (newlen >= 0x10000) {
1086 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1089 #endif /* HAS_64K_LIMIT */
1092 if (SvTYPE(sv) < SVt_PV) {
1093 sv_upgrade(sv, SVt_PV);
1096 else if (SvOOK(sv)) { /* pv is offset? */
1099 if (newlen > SvLEN(sv))
1100 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1101 #ifdef HAS_64K_LIMIT
1102 if (newlen >= 0x10000)
1108 if (newlen > SvLEN(sv)) { /* need more room? */
1110 Renew(s,newlen,char);
1112 New(703,s,newlen,char);
1114 SvLEN_set(sv, newlen);
1120 sv_setiv(register SV *sv, IV i)
1122 SV_CHECK_THINKFIRST(sv);
1123 switch (SvTYPE(sv)) {
1125 sv_upgrade(sv, SVt_IV);
1128 sv_upgrade(sv, SVt_PVNV);
1132 sv_upgrade(sv, SVt_PVIV);
1148 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1149 op_desc[op->op_type]);
1152 (void)SvIOK_only(sv); /* validate number */
1158 sv_setiv_mg(register SV *sv, IV i)
1165 sv_setuv(register SV *sv, UV u)
1170 sv_setnv(sv, (double)u);
1174 sv_setuv_mg(register SV *sv, UV u)
1181 sv_setnv(register SV *sv, double num)
1183 SV_CHECK_THINKFIRST(sv);
1184 switch (SvTYPE(sv)) {
1187 sv_upgrade(sv, SVt_NV);
1192 sv_upgrade(sv, SVt_PVNV);
1199 (void)SvOOK_off(sv);
1214 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1215 op_name[op->op_type]);
1219 (void)SvNOK_only(sv); /* validate number */
1224 sv_setnv_mg(register SV *sv, double num)
1231 not_a_number(SV *sv)
1237 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1238 /* each *s can expand to 4 chars + "...\0",
1239 i.e. need room for 8 chars */
1241 for (s = SvPVX(sv); *s && d < limit; s++) {
1243 if (ch & 128 && !isPRINT_LC(ch)) {
1252 else if (ch == '\r') {
1256 else if (ch == '\f') {
1260 else if (ch == '\\') {
1264 else if (isPRINT_LC(ch))
1279 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1280 op_name[op->op_type]);
1282 warn("Argument \"%s\" isn't numeric", tmpbuf);
1286 sv_2iv(register SV *sv)
1290 if (SvGMAGICAL(sv)) {
1295 if (SvNVX(sv) < 0.0)
1296 return I_V(SvNVX(sv));
1298 return (IV) U_V(SvNVX(sv));
1300 if (SvPOKp(sv) && SvLEN(sv))
1303 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1311 if (SvTHINKFIRST(sv)) {
1315 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1316 return SvIV(tmpstr);
1317 #endif /* OVERLOAD */
1318 return (IV)SvRV(sv);
1320 if (SvREADONLY(sv)) {
1322 if (SvNVX(sv) < 0.0)
1323 return I_V(SvNVX(sv));
1325 return (IV) U_V(SvNVX(sv));
1327 if (SvPOKp(sv) && SvLEN(sv))
1334 switch (SvTYPE(sv)) {
1336 sv_upgrade(sv, SVt_IV);
1339 sv_upgrade(sv, SVt_PVIV);
1342 sv_upgrade(sv, SVt_PVNV);
1347 if (SvNVX(sv) < 0.0)
1348 SvIVX(sv) = I_V(SvNVX(sv));
1350 SvUVX(sv) = U_V(SvNVX(sv));
1352 else if (SvPOKp(sv) && SvLEN(sv)) {
1354 SvIVX(sv) = asIV(sv);
1358 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1362 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1363 (unsigned long)sv,(long)SvIVX(sv)));
1368 sv_2uv(register SV *sv)
1372 if (SvGMAGICAL(sv)) {
1377 return U_V(SvNVX(sv));
1378 if (SvPOKp(sv) && SvLEN(sv))
1381 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1389 if (SvTHINKFIRST(sv)) {
1393 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1394 return SvUV(tmpstr);
1395 #endif /* OVERLOAD */
1396 return (UV)SvRV(sv);
1398 if (SvREADONLY(sv)) {
1400 return U_V(SvNVX(sv));
1402 if (SvPOKp(sv) && SvLEN(sv))
1409 switch (SvTYPE(sv)) {
1411 sv_upgrade(sv, SVt_IV);
1414 sv_upgrade(sv, SVt_PVIV);
1417 sv_upgrade(sv, SVt_PVNV);
1422 SvUVX(sv) = U_V(SvNVX(sv));
1424 else if (SvPOKp(sv) && SvLEN(sv)) {
1426 SvUVX(sv) = asUV(sv);
1429 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1436 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1437 (unsigned long)sv,SvUVX(sv)));
1442 sv_2nv(register SV *sv)
1446 if (SvGMAGICAL(sv)) {
1450 if (SvPOKp(sv) && SvLEN(sv)) {
1451 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1453 SET_NUMERIC_STANDARD();
1454 return atof(SvPVX(sv));
1457 return (double)SvIVX(sv);
1459 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1467 if (SvTHINKFIRST(sv)) {
1471 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1472 return SvNV(tmpstr);
1473 #endif /* OVERLOAD */
1474 return (double)(unsigned long)SvRV(sv);
1476 if (SvREADONLY(sv)) {
1477 if (SvPOKp(sv) && SvLEN(sv)) {
1478 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1480 SET_NUMERIC_STANDARD();
1481 return atof(SvPVX(sv));
1484 return (double)SvIVX(sv);
1490 if (SvTYPE(sv) < SVt_NV) {
1491 if (SvTYPE(sv) == SVt_IV)
1492 sv_upgrade(sv, SVt_PVNV);
1494 sv_upgrade(sv, SVt_NV);
1495 DEBUG_c(SET_NUMERIC_STANDARD());
1496 DEBUG_c(PerlIO_printf(Perl_debug_log,
1497 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1499 else if (SvTYPE(sv) < SVt_PVNV)
1500 sv_upgrade(sv, SVt_PVNV);
1502 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1504 SvNVX(sv) = (double)SvIVX(sv);
1506 else if (SvPOKp(sv) && SvLEN(sv)) {
1507 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1509 SET_NUMERIC_STANDARD();
1510 SvNVX(sv) = atof(SvPVX(sv));
1514 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1519 DEBUG_c(SET_NUMERIC_STANDARD());
1520 DEBUG_c(PerlIO_printf(Perl_debug_log,
1521 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1528 I32 numtype = looks_like_number(sv);
1532 return atol(SvPVX(sv));
1533 if (!numtype && dowarn)
1535 SET_NUMERIC_STANDARD();
1536 d = atof(SvPVX(sv));
1546 I32 numtype = looks_like_number(sv);
1550 return strtoul(SvPVX(sv), Null(char**), 10);
1552 if (!numtype && dowarn)
1554 SET_NUMERIC_STANDARD();
1555 return U_V(atof(SvPVX(sv)));
1559 looks_like_number(SV *sv)
1562 register char *send;
1563 register char *sbegin;
1571 else if (SvPOKp(sv))
1572 sbegin = SvPV(sv, len);
1575 send = sbegin + len;
1580 if (*s == '+' || *s == '-')
1583 /* next must be digit or '.' */
1587 } while (isDIGIT(*s));
1590 while (isDIGIT(*s)) /* optional digits after "." */
1594 else if (*s == '.') {
1596 /* no digits before '.' means we need digits after it */
1600 } while (isDIGIT(*s));
1609 * we return 1 if the number can be converted to _integer_ with atol()
1610 * and 2 if you need (int)atof().
1614 /* we can have an optional exponent part */
1615 if (*s == 'e' || *s == 'E') {
1618 if (*s == '+' || *s == '-')
1623 } while (isDIGIT(*s));
1632 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1638 sv_2pv(register SV *sv, STRLEN *lp)
1643 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1649 if (SvGMAGICAL(sv)) {
1656 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1661 SET_NUMERIC_STANDARD();
1662 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1667 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1676 if (SvTHINKFIRST(sv)) {
1680 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1681 return SvPV(tmpstr,*lp);
1682 #endif /* OVERLOAD */
1687 switch (SvTYPE(sv)) {
1696 case SVt_PVMG: s = "SCALAR"; break;
1697 case SVt_PVLV: s = "LVALUE"; break;
1698 case SVt_PVAV: s = "ARRAY"; break;
1699 case SVt_PVHV: s = "HASH"; break;
1700 case SVt_PVCV: s = "CODE"; break;
1701 case SVt_PVGV: s = "GLOB"; break;
1702 case SVt_PVFM: s = "FORMLINE"; break;
1703 case SVt_PVIO: s = "IO"; break;
1704 default: s = "UNKNOWN"; break;
1708 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1711 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1717 if (SvREADONLY(sv)) {
1719 SET_NUMERIC_STANDARD();
1720 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1725 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1735 (void)SvUPGRADE(sv, SVt_PV);
1737 if (SvTYPE(sv) < SVt_PVNV)
1738 sv_upgrade(sv, SVt_PVNV);
1741 olderrno = errno; /* some Xenix systems wipe out errno here */
1743 if (SvNVX(sv) == 0.0)
1744 (void)strcpy(s,"0");
1748 SET_NUMERIC_STANDARD();
1749 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1752 #ifdef FIXNEGATIVEZERO
1753 if (*s == '-' && s[1] == '0' && !s[2])
1762 else if (SvIOKp(sv)) {
1763 U32 oldIOK = SvIOK(sv);
1764 if (SvTYPE(sv) < SVt_PVIV)
1765 sv_upgrade(sv, SVt_PVIV);
1766 olderrno = errno; /* some Xenix systems wipe out errno here */
1767 sv_setpviv(sv, SvIVX(sv));
1777 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1782 *lp = s - SvPVX(sv);
1785 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1789 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1790 /* Sneaky stuff here */
1794 tsv = newSVpv(tmpbuf, 0);
1810 len = strlen(tmpbuf);
1812 #ifdef FIXNEGATIVEZERO
1813 if (len == 2 && t[0] == '-' && t[1] == '0') {
1818 (void)SvUPGRADE(sv, SVt_PV);
1820 s = SvGROW(sv, len + 1);
1828 /* This function is only called on magical items */
1830 sv_2bool(register SV *sv)
1842 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1843 return SvTRUE(tmpsv);
1845 #endif /* OVERLOAD */
1846 return SvRV(sv) != 0;
1849 register XPV* Xpvtmp;
1850 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1851 (*Xpvtmp->xpv_pv > '0' ||
1852 Xpvtmp->xpv_cur > 1 ||
1853 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1860 return SvIVX(sv) != 0;
1863 return SvNVX(sv) != 0.0;
1870 /* Note: sv_setsv() should not be called with a source string that needs
1871 * to be reused, since it may destroy the source string if it is marked
1876 sv_setsv(SV *dstr, register SV *sstr)
1879 register U32 sflags;
1885 SV_CHECK_THINKFIRST(dstr);
1888 stype = SvTYPE(sstr);
1889 dtype = SvTYPE(dstr);
1891 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1892 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1893 sv_setpvn(dstr, "", 0);
1894 (void)SvPOK_only(dstr);
1895 dtype = SvTYPE(dstr);
1900 #endif /* OVERLOAD */
1901 /* There's a lot of redundancy below but we're going for speed here */
1905 (void)SvOK_off(dstr);
1908 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1910 sv_upgrade(dstr, SVt_IV);
1911 else if (dtype == SVt_NV)
1912 sv_upgrade(dstr, SVt_PVNV);
1914 sv_upgrade(dstr, SVt_PVIV);
1918 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1920 sv_upgrade(dstr, SVt_NV);
1922 sv_upgrade(dstr, SVt_PVNV);
1927 sv_upgrade(dstr, SVt_RV);
1928 else if (dtype == SVt_PVGV &&
1929 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1932 if (curcop->cop_stash != GvSTASH(dstr))
1933 GvIMPORTED_on(dstr);
1943 sv_upgrade(dstr, SVt_PV);
1946 if (dtype < SVt_PVIV)
1947 sv_upgrade(dstr, SVt_PVIV);
1950 if (dtype < SVt_PVNV)
1951 sv_upgrade(dstr, SVt_PVNV);
1958 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1959 op_name[op->op_type]);
1961 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1965 if (dtype <= SVt_PVGV) {
1967 if (dtype != SVt_PVGV) {
1968 char *name = GvNAME(sstr);
1969 STRLEN len = GvNAMELEN(sstr);
1970 sv_upgrade(dstr, SVt_PVGV);
1971 sv_magic(dstr, dstr, '*', name, len);
1972 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
1973 GvNAME(dstr) = savepvn(name, len);
1974 GvNAMELEN(dstr) = len;
1975 SvFAKE_on(dstr); /* can coerce to non-glob */
1977 /* ahem, death to those who redefine active sort subs */
1978 else if (curstackinfo->si_type == SI_SORT
1979 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1980 croak("Can't redefine active sort subroutine %s",
1982 (void)SvOK_off(dstr);
1983 GvINTRO_off(dstr); /* one-shot flag */
1985 GvGP(dstr) = gp_ref(GvGP(sstr));
1987 if (curcop->cop_stash != GvSTASH(dstr))
1988 GvIMPORTED_on(dstr);
1995 if (SvGMAGICAL(sstr)) {
1997 if (SvTYPE(sstr) != stype) {
1998 stype = SvTYPE(sstr);
1999 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2003 if (stype == SVt_PVLV)
2004 SvUPGRADE(dstr, SVt_PVNV);
2006 SvUPGRADE(dstr, stype);
2009 sflags = SvFLAGS(sstr);
2011 if (sflags & SVf_ROK) {
2012 if (dtype >= SVt_PV) {
2013 if (dtype == SVt_PVGV) {
2015 SV *sref = SvREFCNT_inc(SvRV(sstr));
2017 int intro = GvINTRO(dstr);
2021 GvGP(dstr)->gp_refcnt--;
2022 GvINTRO_off(dstr); /* one-shot flag */
2023 Newz(602,gp, 1, GP);
2024 GvGP(dstr) = gp_ref(gp);
2025 GvSV(dstr) = NEWSV(72,0);
2026 GvLINE(dstr) = curcop->cop_line;
2027 GvEGV(dstr) = (GV*)dstr;
2030 switch (SvTYPE(sref)) {
2033 SAVESPTR(GvAV(dstr));
2035 dref = (SV*)GvAV(dstr);
2036 GvAV(dstr) = (AV*)sref;
2037 if (curcop->cop_stash != GvSTASH(dstr))
2038 GvIMPORTED_AV_on(dstr);
2042 SAVESPTR(GvHV(dstr));
2044 dref = (SV*)GvHV(dstr);
2045 GvHV(dstr) = (HV*)sref;
2046 if (curcop->cop_stash != GvSTASH(dstr))
2047 GvIMPORTED_HV_on(dstr);
2051 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2052 SvREFCNT_dec(GvCV(dstr));
2053 GvCV(dstr) = Nullcv;
2054 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2057 SAVESPTR(GvCV(dstr));
2060 dref = (SV*)GvCV(dstr);
2061 if (GvCV(dstr) != (CV*)sref) {
2062 CV* cv = GvCV(dstr);
2064 if (!GvCVGEN((GV*)dstr) &&
2065 (CvROOT(cv) || CvXSUB(cv)))
2067 /* ahem, death to those who redefine
2068 * active sort subs */
2069 if (curstackinfo->si_type == SI_SORT &&
2070 sortcop == CvSTART(cv))
2072 "Can't redefine active sort subroutine %s",
2073 GvENAME((GV*)dstr));
2074 if (cv_const_sv(cv))
2075 warn("Constant subroutine %s redefined",
2076 GvENAME((GV*)dstr));
2078 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2079 && HvNAME(GvSTASH(CvGV(cv)))
2080 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2082 warn("Subroutine %s redefined",
2083 GvENAME((GV*)dstr));
2086 cv_ckproto(cv, (GV*)dstr,
2087 SvPOK(sref) ? SvPVX(sref) : Nullch);
2089 GvCV(dstr) = (CV*)sref;
2090 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2091 GvASSUMECV_on(dstr);
2094 if (curcop->cop_stash != GvSTASH(dstr))
2095 GvIMPORTED_CV_on(dstr);
2099 SAVESPTR(GvIOp(dstr));
2101 dref = (SV*)GvIOp(dstr);
2102 GvIOp(dstr) = (IO*)sref;
2106 SAVESPTR(GvSV(dstr));
2108 dref = (SV*)GvSV(dstr);
2110 if (curcop->cop_stash != GvSTASH(dstr))
2111 GvIMPORTED_SV_on(dstr);
2122 (void)SvOOK_off(dstr); /* backoff */
2123 Safefree(SvPVX(dstr));
2124 SvLEN(dstr)=SvCUR(dstr)=0;
2127 (void)SvOK_off(dstr);
2128 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2130 if (sflags & SVp_NOK) {
2132 SvNVX(dstr) = SvNVX(sstr);
2134 if (sflags & SVp_IOK) {
2135 (void)SvIOK_on(dstr);
2136 SvIVX(dstr) = SvIVX(sstr);
2139 if (SvAMAGIC(sstr)) {
2142 #endif /* OVERLOAD */
2144 else if (sflags & SVp_POK) {
2147 * Check to see if we can just swipe the string. If so, it's a
2148 * possible small lose on short strings, but a big win on long ones.
2149 * It might even be a win on short strings if SvPVX(dstr)
2150 * has to be allocated and SvPVX(sstr) has to be freed.
2153 if (SvTEMP(sstr) && /* slated for free anyway? */
2154 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2155 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2157 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2159 SvFLAGS(dstr) &= ~SVf_OOK;
2160 Safefree(SvPVX(dstr) - SvIVX(dstr));
2163 Safefree(SvPVX(dstr));
2165 (void)SvPOK_only(dstr);
2166 SvPV_set(dstr, SvPVX(sstr));
2167 SvLEN_set(dstr, SvLEN(sstr));
2168 SvCUR_set(dstr, SvCUR(sstr));
2170 (void)SvOK_off(sstr);
2171 SvPV_set(sstr, Nullch);
2176 else { /* have to copy actual string */
2177 STRLEN len = SvCUR(sstr);
2179 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2180 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2181 SvCUR_set(dstr, len);
2182 *SvEND(dstr) = '\0';
2183 (void)SvPOK_only(dstr);
2186 if (sflags & SVp_NOK) {
2188 SvNVX(dstr) = SvNVX(sstr);
2190 if (sflags & SVp_IOK) {
2191 (void)SvIOK_on(dstr);
2192 SvIVX(dstr) = SvIVX(sstr);
2195 else if (sflags & SVp_NOK) {
2196 SvNVX(dstr) = SvNVX(sstr);
2197 (void)SvNOK_only(dstr);
2199 (void)SvIOK_on(dstr);
2200 SvIVX(dstr) = SvIVX(sstr);
2203 else if (sflags & SVp_IOK) {
2204 (void)SvIOK_only(dstr);
2205 SvIVX(dstr) = SvIVX(sstr);
2208 (void)SvOK_off(dstr);
2214 sv_setsv_mg(SV *dstr, register SV *sstr)
2216 sv_setsv(dstr,sstr);
2221 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2223 register char *dptr;
2224 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2225 elicit a warning, but it won't hurt. */
2226 SV_CHECK_THINKFIRST(sv);
2231 if (SvTYPE(sv) >= SVt_PV) {
2232 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2236 sv_upgrade(sv, SVt_PV);
2238 SvGROW(sv, len + 1);
2240 Move(ptr,dptr,len,char);
2243 (void)SvPOK_only(sv); /* validate pointer */
2248 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2250 sv_setpvn(sv,ptr,len);
2255 sv_setpv(register SV *sv, register const char *ptr)
2257 register STRLEN len;
2259 SV_CHECK_THINKFIRST(sv);
2265 if (SvTYPE(sv) >= SVt_PV) {
2266 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2270 sv_upgrade(sv, SVt_PV);
2272 SvGROW(sv, len + 1);
2273 Move(ptr,SvPVX(sv),len+1,char);
2275 (void)SvPOK_only(sv); /* validate pointer */
2280 sv_setpv_mg(register SV *sv, register const char *ptr)
2287 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2289 SV_CHECK_THINKFIRST(sv);
2290 (void)SvUPGRADE(sv, SVt_PV);
2296 Safefree(SvPVX(sv));
2297 Renew(ptr, len+1, char);
2300 SvLEN_set(sv, len+1);
2302 (void)SvPOK_only(sv); /* validate pointer */
2307 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2309 sv_usepvn(sv,ptr,len);
2314 sv_check_thinkfirst(register SV *sv)
2316 if (SvREADONLY(sv)) {
2318 if (curcop != &compiling)
2326 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2330 register STRLEN delta;
2332 if (!ptr || !SvPOKp(sv))
2334 SV_CHECK_THINKFIRST(sv);
2335 if (SvTYPE(sv) < SVt_PVIV)
2336 sv_upgrade(sv,SVt_PVIV);
2340 SvFLAGS(sv) |= SVf_OOK;
2342 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2343 delta = ptr - SvPVX(sv);
2351 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2356 junk = SvPV_force(sv, tlen);
2357 SvGROW(sv, tlen + len + 1);
2360 Move(ptr,SvPVX(sv)+tlen,len,char);
2363 (void)SvPOK_only(sv); /* validate pointer */
2368 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2370 sv_catpvn(sv,ptr,len);
2375 sv_catsv(SV *dstr, register SV *sstr)
2381 if (s = SvPV(sstr, len))
2382 sv_catpvn(dstr,s,len);
2386 sv_catsv_mg(SV *dstr, register SV *sstr)
2388 sv_catsv(dstr,sstr);
2393 sv_catpv(register SV *sv, register char *ptr)
2395 register STRLEN len;
2401 junk = SvPV_force(sv, tlen);
2403 SvGROW(sv, tlen + len + 1);
2406 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2408 (void)SvPOK_only(sv); /* validate pointer */
2413 sv_catpv_mg(register SV *sv, register char *ptr)
2421 newSV(I32 x, STRLEN len)
2433 sv_upgrade(sv, SVt_PV);
2434 SvGROW(sv, len + 1);
2439 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2442 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2446 if (SvREADONLY(sv)) {
2448 if (curcop != &compiling && !strchr("gBf", how))
2451 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2452 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2459 (void)SvUPGRADE(sv, SVt_PVMG);
2461 Newz(702,mg, 1, MAGIC);
2462 mg->mg_moremagic = SvMAGIC(sv);
2465 if (!obj || obj == sv || how == '#' || how == 'r')
2469 mg->mg_obj = SvREFCNT_inc(obj);
2470 mg->mg_flags |= MGf_REFCOUNTED;
2473 mg->mg_len = namlen;
2476 mg->mg_ptr = savepvn(name, namlen);
2477 else if (namlen == HEf_SVKEY)
2478 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2482 mg->mg_virtual = &vtbl_sv;
2486 mg->mg_virtual = &vtbl_amagic;
2489 mg->mg_virtual = &vtbl_amagicelem;
2494 #endif /* OVERLOAD */
2496 mg->mg_virtual = &vtbl_bm;
2499 mg->mg_virtual = &vtbl_env;
2502 mg->mg_virtual = &vtbl_fm;
2505 mg->mg_virtual = &vtbl_envelem;
2508 mg->mg_virtual = &vtbl_mglob;
2511 mg->mg_virtual = &vtbl_isa;
2514 mg->mg_virtual = &vtbl_isaelem;
2517 mg->mg_virtual = &vtbl_nkeys;
2524 mg->mg_virtual = &vtbl_dbline;
2528 mg->mg_virtual = &vtbl_mutex;
2530 #endif /* USE_THREADS */
2531 #ifdef USE_LOCALE_COLLATE
2533 mg->mg_virtual = &vtbl_collxfrm;
2535 #endif /* USE_LOCALE_COLLATE */
2537 mg->mg_virtual = &vtbl_pack;
2541 mg->mg_virtual = &vtbl_packelem;
2544 mg->mg_virtual = &vtbl_regexp;
2547 mg->mg_virtual = &vtbl_sig;
2550 mg->mg_virtual = &vtbl_sigelem;
2553 mg->mg_virtual = &vtbl_taint;
2557 mg->mg_virtual = &vtbl_uvar;
2560 mg->mg_virtual = &vtbl_vec;
2563 mg->mg_virtual = &vtbl_substr;
2566 mg->mg_virtual = &vtbl_defelem;
2569 mg->mg_virtual = &vtbl_glob;
2572 mg->mg_virtual = &vtbl_arylen;
2575 mg->mg_virtual = &vtbl_pos;
2577 case '~': /* Reserved for use by extensions not perl internals. */
2578 /* Useful for attaching extension internal data to perl vars. */
2579 /* Note that multiple extensions may clash if magical scalars */
2580 /* etc holding private data from one are passed to another. */
2584 croak("Don't know how to handle magic of type '%c'", how);
2588 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2592 sv_unmagic(SV *sv, int type)
2596 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2599 for (mg = *mgp; mg; mg = *mgp) {
2600 if (mg->mg_type == type) {
2601 MGVTBL* vtbl = mg->mg_virtual;
2602 *mgp = mg->mg_moremagic;
2603 if (vtbl && vtbl->svt_free)
2604 (*vtbl->svt_free)(sv, mg);
2605 if (mg->mg_ptr && mg->mg_type != 'g')
2606 if (mg->mg_len >= 0)
2607 Safefree(mg->mg_ptr);
2608 else if (mg->mg_len == HEf_SVKEY)
2609 SvREFCNT_dec((SV*)mg->mg_ptr);
2610 if (mg->mg_flags & MGf_REFCOUNTED)
2611 SvREFCNT_dec(mg->mg_obj);
2615 mgp = &mg->mg_moremagic;
2619 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2626 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2630 register char *midend;
2631 register char *bigend;
2635 croak("Can't modify non-existent substring");
2636 SvPV_force(bigstr, na);
2638 i = littlelen - len;
2639 if (i > 0) { /* string might grow */
2640 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2641 mid = big + offset + len;
2642 midend = bigend = big + SvCUR(bigstr);
2645 while (midend > mid) /* shove everything down */
2646 *--bigend = *--midend;
2647 Move(little,big+offset,littlelen,char);
2653 Move(little,SvPVX(bigstr)+offset,len,char);
2658 big = SvPVX(bigstr);
2661 bigend = big + SvCUR(bigstr);
2663 if (midend > bigend)
2664 croak("panic: sv_insert");
2666 if (mid - big > bigend - midend) { /* faster to shorten from end */
2668 Move(little, mid, littlelen,char);
2671 i = bigend - midend;
2673 Move(midend, mid, i,char);
2677 SvCUR_set(bigstr, mid - big);
2680 else if (i = mid - big) { /* faster from front */
2681 midend -= littlelen;
2683 sv_chop(bigstr,midend-i);
2688 Move(little, mid, littlelen,char);
2690 else if (littlelen) {
2691 midend -= littlelen;
2692 sv_chop(bigstr,midend);
2693 Move(little,midend,littlelen,char);
2696 sv_chop(bigstr,midend);
2701 /* make sv point to what nstr did */
2704 sv_replace(register SV *sv, register SV *nsv)
2706 U32 refcnt = SvREFCNT(sv);
2707 SV_CHECK_THINKFIRST(sv);
2708 if (SvREFCNT(nsv) != 1)
2709 warn("Reference miscount in sv_replace()");
2710 if (SvMAGICAL(sv)) {
2714 sv_upgrade(nsv, SVt_PVMG);
2715 SvMAGIC(nsv) = SvMAGIC(sv);
2716 SvFLAGS(nsv) |= SvMAGICAL(sv);
2722 assert(!SvREFCNT(sv));
2723 StructCopy(nsv,sv,SV);
2724 SvREFCNT(sv) = refcnt;
2725 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2730 sv_clear(register SV *sv)
2734 assert(SvREFCNT(sv) == 0);
2738 if (defstash) { /* Still have a symbol table? */
2744 sv_upgrade(&ref, SVt_RV);
2746 SvREADONLY_on(&ref); /* DESTROY() could be naughty */
2750 stash = SvSTASH(sv);
2751 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2754 PUSHSTACK(SI_DESTROY);
2755 SvRV(&ref) = SvREFCNT_inc(sv);
2760 perl_call_sv((SV*)GvCV(destructor),
2761 G_DISCARD|G_EVAL|G_KEEPERR);
2766 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2768 del_XRV(SvANY(&ref));
2772 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2773 SvOBJECT_off(sv); /* Curse the object. */
2774 if (SvTYPE(sv) != SVt_PVIO)
2775 --sv_objcount; /* XXX Might want something more general */
2779 croak("DESTROY created new reference to dead object");
2780 /* DESTROY gave object new lease on life */
2784 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2787 switch (SvTYPE(sv)) {
2789 if (IoIFP(sv) != PerlIO_stdin() &&
2790 IoIFP(sv) != PerlIO_stdout() &&
2791 IoIFP(sv) != PerlIO_stderr())
2793 Safefree(IoTOP_NAME(sv));
2794 Safefree(IoFMT_NAME(sv));
2795 Safefree(IoBOTTOM_NAME(sv));
2811 Safefree(GvNAME(sv));
2812 /* cannot decrease stash refcount yet, as we might recursively delete
2813 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2814 of stash until current sv is completely gone.
2815 -- JohnPC, 27 Mar 1998 */
2816 stash = GvSTASH(sv);
2823 (void)SvOOK_off(sv);
2828 SvREFCNT_dec(SvRV(sv));
2829 else if (SvPVX(sv) && SvLEN(sv))
2830 Safefree(SvPVX(sv));
2840 switch (SvTYPE(sv)) {
2856 del_XPVIV(SvANY(sv));
2859 del_XPVNV(SvANY(sv));
2862 del_XPVMG(SvANY(sv));
2865 del_XPVLV(SvANY(sv));
2868 del_XPVAV(SvANY(sv));
2871 del_XPVHV(SvANY(sv));
2874 del_XPVCV(SvANY(sv));
2877 del_XPVGV(SvANY(sv));
2878 /* code duplication for increased performance. */
2879 SvFLAGS(sv) &= SVf_BREAK;
2880 SvFLAGS(sv) |= SVTYPEMASK;
2881 /* decrease refcount of the stash that owns this GV, if any */
2883 SvREFCNT_dec(stash);
2884 return; /* not break, SvFLAGS reset already happened */
2886 del_XPVBM(SvANY(sv));
2889 del_XPVFM(SvANY(sv));
2892 del_XPVIO(SvANY(sv));
2895 SvFLAGS(sv) &= SVf_BREAK;
2896 SvFLAGS(sv) |= SVTYPEMASK;
2903 ATOMIC_INC(SvREFCNT(sv));
2910 int refcount_is_zero;
2914 if (SvREADONLY(sv)) {
2915 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2918 if (SvREFCNT(sv) == 0) {
2919 if (SvFLAGS(sv) & SVf_BREAK)
2921 if (in_clean_all) /* All is fair */
2923 warn("Attempt to free unreferenced scalar");
2926 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
2927 if (!refcount_is_zero)
2931 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2941 sv_len(register SV *sv)
2952 junk = SvPV(sv, len);
2957 sv_eq(register SV *str1, register SV *str2)
2969 pv1 = SvPV(str1, cur1);
2974 pv2 = SvPV(str2, cur2);
2979 return memEQ(pv1, pv2, cur1);
2983 sv_cmp(register SV *str1, register SV *str2)
2986 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
2988 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
2992 return cur2 ? -1 : 0;
2997 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3000 return retval < 0 ? -1 : 1;
3005 return cur1 < cur2 ? -1 : 1;
3009 sv_cmp_locale(register SV *sv1, register SV *sv2)
3011 #ifdef USE_LOCALE_COLLATE
3017 if (collation_standard)
3021 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3023 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3025 if (!pv1 || !len1) {
3036 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3039 return retval < 0 ? -1 : 1;
3042 * When the result of collation is equality, that doesn't mean
3043 * that there are no differences -- some locales exclude some
3044 * characters from consideration. So to avoid false equalities,
3045 * we use the raw string as a tiebreaker.
3051 #endif /* USE_LOCALE_COLLATE */
3053 return sv_cmp(sv1, sv2);
3056 #ifdef USE_LOCALE_COLLATE
3058 * Any scalar variable may carry an 'o' magic that contains the
3059 * scalar data of the variable transformed to such a format that
3060 * a normal memory comparison can be used to compare the data
3061 * according to the locale settings.
3064 sv_collxfrm(SV *sv, STRLEN *nxp)
3068 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3069 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3074 Safefree(mg->mg_ptr);
3076 if ((xf = mem_collxfrm(s, len, &xlen))) {
3077 if (SvREADONLY(sv)) {
3080 return xf + sizeof(collation_ix);
3083 sv_magic(sv, 0, 'o', 0, 0);
3084 mg = mg_find(sv, 'o');
3097 if (mg && mg->mg_ptr) {
3099 return mg->mg_ptr + sizeof(collation_ix);
3107 #endif /* USE_LOCALE_COLLATE */
3110 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3115 register STDCHAR rslast;
3116 register STDCHAR *bp;
3120 SV_CHECK_THINKFIRST(sv);
3121 (void)SvUPGRADE(sv, SVt_PV);
3128 else if (RsPARA(rs)) {
3133 rsptr = SvPV(rs, rslen);
3134 rslast = rslen ? rsptr[rslen - 1] : '\0';
3136 if (RsPARA(rs)) { /* have to do this both before and after */
3137 do { /* to make sure file boundaries work right */
3140 i = PerlIO_getc(fp);
3144 PerlIO_ungetc(fp,i);
3150 /* See if we know enough about I/O mechanism to cheat it ! */
3152 /* This used to be #ifdef test - it is made run-time test for ease
3153 of abstracting out stdio interface. One call should be cheap
3154 enough here - and may even be a macro allowing compile
3158 if (PerlIO_fast_gets(fp)) {
3161 * We're going to steal some values from the stdio struct
3162 * and put EVERYTHING in the innermost loop into registers.
3164 register STDCHAR *ptr;
3168 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3169 /* An ungetc()d char is handled separately from the regular
3170 * buffer, so we getc() it back out and stuff it in the buffer.
3172 i = PerlIO_getc(fp);
3173 if (i == EOF) return 0;
3174 *(--((*fp)->_ptr)) = (unsigned char) i;
3178 /* Here is some breathtakingly efficient cheating */
3180 cnt = PerlIO_get_cnt(fp); /* get count into register */
3181 (void)SvPOK_only(sv); /* validate pointer */
3182 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3183 if (cnt > 80 && SvLEN(sv) > append) {
3184 shortbuffered = cnt - SvLEN(sv) + append + 1;
3185 cnt -= shortbuffered;
3189 /* remember that cnt can be negative */
3190 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3195 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3196 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3197 DEBUG_P(PerlIO_printf(Perl_debug_log,
3198 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3199 DEBUG_P(PerlIO_printf(Perl_debug_log,
3200 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3201 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3202 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3207 while (cnt > 0) { /* this | eat */
3209 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3210 goto thats_all_folks; /* screams | sed :-) */
3214 Copy(ptr, bp, cnt, char); /* this | eat */
3215 bp += cnt; /* screams | dust */
3216 ptr += cnt; /* louder | sed :-) */
3221 if (shortbuffered) { /* oh well, must extend */
3222 cnt = shortbuffered;
3224 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3226 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3227 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3231 DEBUG_P(PerlIO_printf(Perl_debug_log,
3232 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3233 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3234 DEBUG_P(PerlIO_printf(Perl_debug_log,
3235 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3236 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3237 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3238 /* This used to call 'filbuf' in stdio form, but as that behaves like
3239 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3240 another abstraction. */
3241 i = PerlIO_getc(fp); /* get more characters */
3242 DEBUG_P(PerlIO_printf(Perl_debug_log,
3243 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3244 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3245 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3246 cnt = PerlIO_get_cnt(fp);
3247 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3248 DEBUG_P(PerlIO_printf(Perl_debug_log,
3249 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3251 if (i == EOF) /* all done for ever? */
3252 goto thats_really_all_folks;
3254 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3256 SvGROW(sv, bpx + cnt + 2);
3257 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3259 *bp++ = i; /* store character from PerlIO_getc */
3261 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3262 goto thats_all_folks;
3266 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3267 memNE((char*)bp - rslen, rsptr, rslen))
3268 goto screamer; /* go back to the fray */
3269 thats_really_all_folks:
3271 cnt += shortbuffered;
3272 DEBUG_P(PerlIO_printf(Perl_debug_log,
3273 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3274 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3275 DEBUG_P(PerlIO_printf(Perl_debug_log,
3276 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3277 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3278 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3280 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3281 DEBUG_P(PerlIO_printf(Perl_debug_log,
3282 "Screamer: done, len=%ld, string=|%.*s|\n",
3283 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3287 /*The big, slow, and stupid way */
3292 register STDCHAR *bpe = buf + sizeof(buf);
3294 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3295 ; /* keep reading */
3299 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3300 /* Accomodate broken VAXC compiler, which applies U8 cast to
3301 * both args of ?: operator, causing EOF to change into 255
3303 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3307 sv_catpvn(sv, (char *) buf, cnt);
3309 sv_setpvn(sv, (char *) buf, cnt);
3311 if (i != EOF && /* joy */
3313 SvCUR(sv) < rslen ||
3314 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3318 * If we're reading from a TTY and we get a short read,
3319 * indicating that the user hit his EOF character, we need
3320 * to notice it now, because if we try to read from the TTY
3321 * again, the EOF condition will disappear.
3323 * The comparison of cnt to sizeof(buf) is an optimization
3324 * that prevents unnecessary calls to feof().
3328 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3333 if (RsPARA(rs)) { /* have to do this both before and after */
3334 while (i != EOF) { /* to make sure file boundaries work right */
3335 i = PerlIO_getc(fp);
3337 PerlIO_ungetc(fp,i);
3344 win32_strip_return(sv);
3347 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3352 sv_inc(register SV *sv)
3359 if (SvTHINKFIRST(sv)) {
3360 if (SvREADONLY(sv)) {
3362 if (curcop != &compiling)
3367 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3368 #endif /* OVERLOAD */
3374 flags = SvFLAGS(sv);
3375 if (flags & SVp_NOK) {
3376 (void)SvNOK_only(sv);
3380 if (flags & SVp_IOK) {
3381 if (SvIVX(sv) == IV_MAX)
3382 sv_setnv(sv, (double)IV_MAX + 1.0);
3384 (void)SvIOK_only(sv);
3389 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3390 if ((flags & SVTYPEMASK) < SVt_PVNV)
3391 sv_upgrade(sv, SVt_NV);
3393 (void)SvNOK_only(sv);
3397 while (isALPHA(*d)) d++;
3398 while (isDIGIT(*d)) d++;
3400 SET_NUMERIC_STANDARD();
3401 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3405 while (d >= SvPVX(sv)) {
3415 *(d--) -= 'z' - 'a' + 1;
3418 /* oh,oh, the number grew */
3419 SvGROW(sv, SvCUR(sv) + 2);
3421 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3430 sv_dec(register SV *sv)
3436 if (SvTHINKFIRST(sv)) {
3437 if (SvREADONLY(sv)) {
3439 if (curcop != &compiling)
3444 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3445 #endif /* OVERLOAD */
3451 flags = SvFLAGS(sv);
3452 if (flags & SVp_NOK) {
3454 (void)SvNOK_only(sv);
3457 if (flags & SVp_IOK) {
3458 if (SvIVX(sv) == IV_MIN)
3459 sv_setnv(sv, (double)IV_MIN - 1.0);
3461 (void)SvIOK_only(sv);
3466 if (!(flags & SVp_POK)) {
3467 if ((flags & SVTYPEMASK) < SVt_PVNV)
3468 sv_upgrade(sv, SVt_NV);
3470 (void)SvNOK_only(sv);
3473 SET_NUMERIC_STANDARD();
3474 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3477 /* Make a string that will exist for the duration of the expression
3478 * evaluation. Actually, it may have to last longer than that, but
3479 * hopefully we won't free it until it has been assigned to a
3480 * permanent location. */
3486 tmps_max += (tmps_max < 512) ? 128 : 512;
3487 Renew(tmps_stack, tmps_max, SV*);
3491 sv_mortalcopy(SV *oldstr)
3500 sv_setsv(sv,oldstr);
3501 if (++tmps_ix >= tmps_max)
3503 tmps_stack[tmps_ix] = sv;
3517 SvFLAGS(sv) = SVs_TEMP;
3518 if (++tmps_ix >= tmps_max)
3520 tmps_stack[tmps_ix] = sv;
3524 /* same thing without the copying */
3527 sv_2mortal(register SV *sv)
3532 if (SvREADONLY(sv) && curcop != &compiling)
3534 if (++tmps_ix >= tmps_max)
3536 tmps_stack[tmps_ix] = sv;
3542 newSVpv(char *s, STRLEN len)
3552 sv_setpvn(sv,s,len);
3567 sv_setpvn(sv,s,len);
3573 newSVpvf(const char* pat, ...)
3577 newSVpvf(pat, va_alist)
3590 va_start(args, pat);
3594 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3636 sv_upgrade(sv, SVt_RV);
3638 SvRV(sv) = SvREFCNT_inc(ref);
3646 Perl_newRV_noinc(SV *ref)
3655 /* make an exact duplicate of old */
3658 newSVsv(register SV *old)
3664 if (SvTYPE(old) == SVTYPEMASK) {
3665 warn("semi-panic: attempt to dup freed string");
3683 sv_reset(register char *s, HV *stash)
3696 if (!*s) { /* reset ?? searches */
3697 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3698 pm->op_pmflags &= ~PMf_USED;
3703 /* reset variables */
3705 if (!HvARRAY(stash))
3708 Zero(todo, 256, char);
3715 for ( ; i <= max; i++) {
3718 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3719 for (entry = HvARRAY(stash)[i];
3721 entry = HeNEXT(entry)) {
3722 if (!todo[(U8)*HeKEY(entry)])
3724 gv = (GV*)HeVAL(entry);
3727 if (SvTYPE(sv) >= SVt_PV) {
3729 if (SvPVX(sv) != Nullch)
3736 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3738 #ifndef VMS /* VMS has no environ array */
3740 environ[0] = Nullch;
3754 switch (SvTYPE(sv)) {
3762 croak("Bad filehandle: %s", GvNAME(gv));
3766 croak(no_usym, "filehandle");
3768 return sv_2io(SvRV(sv));
3769 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3775 croak("Bad filehandle: %s", SvPV(sv,na));
3782 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3788 return *gvp = Nullgv, Nullcv;
3789 switch (SvTYPE(sv)) {
3809 if (SvTYPE(cv) != SVt_PVCV)
3810 croak("Not a subroutine reference");
3818 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3824 if (lref && !GvCVu(gv)) {
3827 tmpsv = NEWSV(704,0);
3828 gv_efullname3(tmpsv, gv, Nullch);
3829 newSUB(start_subparse(FALSE, 0),
3830 newSVOP(OP_CONST, 0, tmpsv),
3835 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3842 sv_true(register SV *sv)
3849 if ((tXpv = (XPV*)SvANY(sv)) &&
3850 (*tXpv->xpv_pv > '0' ||
3851 tXpv->xpv_cur > 1 ||
3852 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3859 return SvIVX(sv) != 0;
3862 return SvNVX(sv) != 0.0;
3864 return sv_2bool(sv);
3870 sv_iv(register SV *sv)
3878 sv_uv(register SV *sv)
3886 sv_nv(register SV *sv)
3894 sv_pvn(SV *sv, STRLEN *lp)
3900 return sv_2pv(sv, lp);
3904 sv_pvn_force(SV *sv, STRLEN *lp)
3908 if (SvREADONLY(sv)) {
3910 if (curcop != &compiling)
3918 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3919 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3926 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3927 op_name[op->op_type]);
3932 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3937 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3938 SvGROW(sv, len + 1);
3939 Move(s,SvPVX(sv),len,char);
3944 SvPOK_on(sv); /* validate pointer */
3946 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3947 (unsigned long)sv,SvPVX(sv)));
3954 sv_reftype(SV *sv, int ob)
3956 if (ob && SvOBJECT(sv))
3957 return HvNAME(SvSTASH(sv));
3959 switch (SvTYPE(sv)) {
3973 case SVt_PVLV: return "LVALUE";
3974 case SVt_PVAV: return "ARRAY";
3975 case SVt_PVHV: return "HASH";
3976 case SVt_PVCV: return "CODE";
3977 case SVt_PVGV: return "GLOB";
3978 case SVt_PVFM: return "FORMLINE";
3979 default: return "UNKNOWN";
4000 sv_isa(SV *sv, char *name)
4012 return strEQ(HvNAME(SvSTASH(sv)), name);
4016 newSVrv(SV *rv, char *classname)
4026 SV_CHECK_THINKFIRST(rv);
4029 #endif /* OVERLOAD */
4031 if (SvTYPE(rv) < SVt_RV)
4032 sv_upgrade(rv, SVt_RV);
4035 SvRV(rv) = SvREFCNT_inc(sv);
4039 HV* stash = gv_stashpv(classname, TRUE);
4040 (void)sv_bless(rv, stash);
4046 sv_setref_pv(SV *rv, char *classname, void *pv)
4049 sv_setsv(rv, &sv_undef);
4053 sv_setiv(newSVrv(rv,classname), (IV)pv);
4058 sv_setref_iv(SV *rv, char *classname, IV iv)
4060 sv_setiv(newSVrv(rv,classname), iv);
4065 sv_setref_nv(SV *rv, char *classname, double nv)
4067 sv_setnv(newSVrv(rv,classname), nv);
4072 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4074 sv_setpvn(newSVrv(rv,classname), pv, n);
4079 sv_bless(SV *sv, HV *stash)
4084 croak("Can't bless non-reference value");
4086 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4087 if (SvREADONLY(ref))
4089 if (SvOBJECT(ref)) {
4090 if (SvTYPE(ref) != SVt_PVIO)
4092 SvREFCNT_dec(SvSTASH(ref));
4096 if (SvTYPE(ref) != SVt_PVIO)
4098 (void)SvUPGRADE(ref, SVt_PVMG);
4099 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4106 #endif /* OVERLOAD */
4114 assert(SvTYPE(sv) == SVt_PVGV);
4119 SvREFCNT_dec(GvSTASH(sv));
4120 GvSTASH(sv) = Nullhv;
4122 sv_unmagic(sv, '*');
4123 Safefree(GvNAME(sv));
4125 SvFLAGS(sv) &= ~SVTYPEMASK;
4126 SvFLAGS(sv) |= SVt_PVMG;
4136 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4139 sv_2mortal(rv); /* Schedule for freeing later */
4145 sv_magic((sv), Nullsv, 't', Nullch, 0);
4151 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4152 MAGIC *mg = mg_find(sv, 't');
4161 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4162 MAGIC *mg = mg_find(sv, 't');
4163 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4170 sv_setpviv(SV *sv, IV iv)
4173 char buf[TYPE_DIGITS(UV)];
4174 char *ptr = buf + sizeof(buf);
4179 sv_setpvn(sv, "", 0);
4188 *--ptr = '0' + (uv % 10);
4190 len = (buf + sizeof(buf)) - ptr;
4191 /* taking advantage of SvCUR(sv) == 0 */
4192 SvGROW(sv, sign + len + 1);
4196 memcpy(p, ptr, len);
4199 SvCUR(sv) = p - SvPVX(sv);
4204 sv_setpviv_mg(SV *sv, IV iv)
4212 sv_setpvf(SV *sv, const char* pat, ...)
4216 sv_setpvf(sv, pat, va_alist)
4224 va_start(args, pat);
4228 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4235 sv_setpvf_mg(SV *sv, const char* pat, ...)
4239 sv_setpvf_mg(sv, pat, va_alist)
4247 va_start(args, pat);
4251 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4258 sv_catpvf(SV *sv, const char* pat, ...)
4262 sv_catpvf(sv, pat, va_alist)
4270 va_start(args, pat);
4274 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4280 sv_catpvf_mg(SV *sv, const char* pat, ...)
4284 sv_catpvf_mg(sv, pat, va_alist)
4292 va_start(args, pat);
4296 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4302 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4304 sv_setpvn(sv, "", 0);
4305 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4309 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4317 static char nullstr[] = "(null)";
4319 /* no matter what, this is a string now */
4320 (void)SvPV_force(sv, origlen);
4322 /* special-case "", "%s", and "%_" */
4325 if (patlen == 2 && pat[0] == '%') {
4329 char *s = va_arg(*args, char*);
4330 sv_catpv(sv, s ? s : nullstr);
4332 else if (svix < svmax)
4333 sv_catsv(sv, *svargs);
4337 sv_catsv(sv, va_arg(*args, SV*));
4340 /* See comment on '_' below */
4345 patend = (char*)pat + patlen;
4346 for (p = (char*)pat; p < patend; p = q) {
4354 bool has_precis = FALSE;
4358 STRLEN esignlen = 0;
4360 char *eptr = Nullch;
4362 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4364 static char *efloatbuf = Nullch;
4365 static STRLEN efloatsize = 0;
4377 for (q = p; q < patend && *q != '%'; ++q) ;
4379 sv_catpvn(sv, p, q - p);
4417 case '1': case '2': case '3':
4418 case '4': case '5': case '6':
4419 case '7': case '8': case '9':
4422 width = width * 10 + (*q++ - '0');
4427 i = va_arg(*args, int);
4429 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4431 width = (i < 0) ? -i : i;
4442 i = va_arg(*args, int);
4444 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4445 precis = (i < 0) ? 0 : i;
4451 precis = precis * 10 + (*q++ - '0');
4460 #if 0 /* when quads have better support within Perl */
4461 if (*(q + 1) == 'l') {
4487 c = va_arg(*args, int);
4489 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4496 eptr = va_arg(*args, char*);
4498 elen = strlen(eptr);
4501 elen = sizeof nullstr - 1;
4504 else if (svix < svmax)
4505 eptr = SvPVx(svargs[svix++], elen);
4510 * The "%_" hack might have to be changed someday,
4511 * if ISO or ANSI decide to use '_' for something.
4512 * So we keep it hidden from users' code.
4516 eptr = SvPVx(va_arg(*args, SV*), elen);
4519 if (has_precis && elen > precis)
4527 uv = (UV)va_arg(*args, void*);
4529 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4540 case 'h': iv = (short)va_arg(*args, int); break;
4541 default: iv = va_arg(*args, int); break;
4542 case 'l': iv = va_arg(*args, long); break;
4543 case 'V': iv = va_arg(*args, IV); break;
4547 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4549 case 'h': iv = (short)iv; break;
4550 default: iv = (int)iv; break;
4551 case 'l': iv = (long)iv; break;
4558 esignbuf[esignlen++] = plus;
4562 esignbuf[esignlen++] = '-';
4588 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4589 default: uv = va_arg(*args, unsigned); break;
4590 case 'l': uv = va_arg(*args, unsigned long); break;
4591 case 'V': uv = va_arg(*args, UV); break;
4595 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4597 case 'h': uv = (unsigned short)uv; break;
4598 default: uv = (unsigned)uv; break;
4599 case 'l': uv = (unsigned long)uv; break;
4605 eptr = ebuf + sizeof ebuf;
4611 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4617 esignbuf[esignlen++] = '0';
4618 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4624 *--eptr = '0' + dig;
4626 if (alt && *eptr != '0')
4629 default: /* it had better be ten or less */
4632 *--eptr = '0' + dig;
4633 } while (uv /= base);
4636 elen = (ebuf + sizeof ebuf) - eptr;
4639 zeros = precis - elen;
4640 else if (precis == 0 && elen == 1 && *eptr == '0')
4645 /* FLOATING POINT */
4648 c = 'f'; /* maybe %F isn't supported here */
4654 /* This is evil, but floating point is even more evil */
4657 nv = va_arg(*args, double);
4659 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4662 if (c != 'e' && c != 'E') {
4664 (void)frexp(nv, &i);
4665 if (i == PERL_INT_MIN)
4666 die("panic: frexp");
4668 need = BIT_DIGITS(i);
4670 need += has_precis ? precis : 6; /* known default */
4674 need += 20; /* fudge factor */
4675 if (efloatsize < need) {
4676 Safefree(efloatbuf);
4677 efloatsize = need + 20; /* more fudge */
4678 New(906, efloatbuf, efloatsize, char);
4681 eptr = ebuf + sizeof ebuf;
4686 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4691 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4703 (void)sprintf(efloatbuf, eptr, nv);
4706 elen = strlen(efloatbuf);
4710 * User-defined locales may include arbitrary characters.
4711 * And, unfortunately, some system may alloc the "C" locale
4712 * to be overridden by a malicious user.
4715 *used_locale = TRUE;
4716 #endif /* LC_NUMERIC */
4723 i = SvCUR(sv) - origlen;
4726 case 'h': *(va_arg(*args, short*)) = i; break;
4727 default: *(va_arg(*args, int*)) = i; break;
4728 case 'l': *(va_arg(*args, long*)) = i; break;
4729 case 'V': *(va_arg(*args, IV*)) = i; break;
4732 else if (svix < svmax)
4733 sv_setuv(svargs[svix++], (UV)i);
4734 continue; /* not "break" */
4740 if (!args && dowarn &&
4741 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4742 SV *msg = sv_newmortal();
4743 sv_setpvf(msg, "Invalid conversion in %s: ",
4744 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4746 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4749 sv_catpv(msg, "end of string");
4750 warn("%_", msg); /* yes, this is reentrant */
4753 /* output mangled stuff ... */
4759 /* ... right here, because formatting flags should not apply */
4760 SvGROW(sv, SvCUR(sv) + elen + 1);
4762 memcpy(p, eptr, elen);
4765 SvCUR(sv) = p - SvPVX(sv);
4766 continue; /* not "break" */
4769 have = esignlen + zeros + elen;
4770 need = (have > width ? have : width);
4773 SvGROW(sv, SvCUR(sv) + need + 1);
4775 if (esignlen && fill == '0') {
4776 for (i = 0; i < esignlen; i++)
4780 memset(p, fill, gap);
4783 if (esignlen && fill != '0') {
4784 for (i = 0; i < esignlen; i++)
4788 for (i = zeros; i; i--)
4792 memcpy(p, eptr, elen);
4796 memset(p, ' ', gap);
4800 SvCUR(sv) = p - SvPVX(sv);
4808 SV *d = sv_newmortal();
4814 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4818 flags = SvFLAGS(sv);
4821 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4822 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4823 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4824 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4825 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4826 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4827 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4828 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4829 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4830 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4832 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4833 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4834 if (flags & SVf_POK) sv_catpv(d, "POK,");
4835 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4836 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4837 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4838 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4841 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4842 #endif /* OVERLOAD */
4843 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4844 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4845 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4846 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4851 if (CvANON(sv)) sv_catpv(d, "ANON,");
4852 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4853 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4854 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4855 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4858 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4859 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4862 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4863 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4864 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4865 if (GvIMPORTED(sv)) {
4866 sv_catpv(d, "IMPORT");
4867 if (GvIMPORTED(sv) == GVf_IMPORTED)
4868 sv_catpv(d, "ALL,");
4871 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4872 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4873 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4874 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4879 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4880 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4884 if (*(SvEND(d) - 1) == ',')
4885 SvPVX(d)[--SvCUR(d)] = '\0';
4889 PerlIO_printf(Perl_debug_log, "SV = ");
4892 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4895 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4898 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4901 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4904 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4907 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4910 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4913 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4916 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4919 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4922 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4925 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4928 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4931 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4934 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4937 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4940 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4943 if (type >= SVt_PVIV || type == SVt_IV)
4944 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4945 if (type >= SVt_PVNV || type == SVt_NV) {
4946 SET_NUMERIC_STANDARD();
4947 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4950 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4956 if (type <= SVt_PVLV) {
4958 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4959 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4961 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4963 if (type >= SVt_PVMG) {
4965 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4968 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4972 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4973 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4974 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4975 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4976 sv_dump(LvTARG(sv));
4979 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4980 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4981 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
4982 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4983 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4984 flags = AvFLAGS(sv);
4986 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4987 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4988 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4989 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4990 SvCUR(d) ? SvPVX(d) + 1 : "");
4993 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4994 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4995 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4996 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4997 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4998 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5000 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5002 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5006 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
5009 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5010 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5011 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5012 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5013 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5014 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5015 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5016 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5018 PerlIO_printf(Perl_debug_log, "\n");
5020 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5021 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5022 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5023 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5025 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5026 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5027 #endif /* USE_THREADS */
5028 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5029 (unsigned long)CvFLAGS(sv));
5030 if (type == SVt_PVFM)
5031 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5034 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5035 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5036 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5037 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5038 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5039 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5040 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5041 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5042 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5043 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5044 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5045 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5046 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5047 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5048 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5049 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5050 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5053 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5054 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5055 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5056 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5057 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5058 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5059 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5060 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5061 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5062 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5063 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5064 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5065 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5066 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5067 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5068 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));