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);
404 Safefree(nice_chunk);
418 * See comment in more_xiv() -- RAM.
420 xiv_root = (IV**)*xiv;
421 return (XPVIV*)((char*)xiv - sizeof(XPV));
429 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
430 *xiv = (IV *)xiv_root;
438 register IV** xivend;
440 New(705, ptr, 1008/sizeof(XPV), XPV);
441 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
442 xiv_arenaroot = ptr; /* to keep Purify happy */
445 xivend = &xiv[1008 / sizeof(IV *) - 1];
446 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
448 while (xiv < xivend) {
449 *xiv = (IV *)(xiv + 1);
462 xnv_root = *(double**)xnv;
463 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
471 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
472 *(double**)xnv = xnv_root;
479 register double* xnv;
480 register double* xnvend;
481 New(711, xnv, 1008/sizeof(double), double);
482 xnvend = &xnv[1008 / sizeof(double) - 1];
483 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
485 while (xnv < xnvend) {
486 *(double**)xnv = (double*)(xnv + 1);
499 xrv_root = (XRV*)xrv->xrv_rv;
508 p->xrv_rv = (SV*)xrv_root;
516 register XRV* xrvend;
517 New(712, xrv_root, 1008/sizeof(XRV), XRV);
519 xrvend = &xrv[1008 / sizeof(XRV) - 1];
520 while (xrv < xrvend) {
521 xrv->xrv_rv = (SV*)(xrv + 1);
534 xpv_root = (XPV*)xpv->xpv_pv;
543 p->xpv_pv = (char*)xpv_root;
551 register XPV* xpvend;
552 New(713, xpv_root, 1008/sizeof(XPV), XPV);
554 xpvend = &xpv[1008 / sizeof(XPV) - 1];
555 while (xpv < xpvend) {
556 xpv->xpv_pv = (char*)(xpv + 1);
564 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
565 #define del_XIV(p) Safefree((char*)p)
567 #define new_XIV() (void*)new_xiv()
568 #define del_XIV(p) del_xiv((XPVIV*) p)
572 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
573 #define del_XNV(p) Safefree((char*)p)
575 #define new_XNV() (void*)new_xnv()
576 #define del_XNV(p) del_xnv((XPVNV*) p)
580 #define new_XRV() (void*)safemalloc(sizeof(XRV))
581 #define del_XRV(p) Safefree((char*)p)
583 #define new_XRV() (void*)new_xrv()
584 #define del_XRV(p) del_xrv((XRV*) p)
588 #define new_XPV() (void*)safemalloc(sizeof(XPV))
589 #define del_XPV(p) Safefree((char*)p)
591 #define new_XPV() (void*)new_xpv()
592 #define del_XPV(p) del_xpv((XPV *)p)
596 # define my_safemalloc(s) safemalloc(s)
597 # define my_safefree(s) free(s)
600 my_safemalloc(MEM_SIZE size)
603 New(717, p, size, char);
606 # define my_safefree(s) Safefree(s)
609 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
610 #define del_XPVIV(p) my_safefree((char*)p)
612 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
613 #define del_XPVNV(p) my_safefree((char*)p)
615 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
616 #define del_XPVMG(p) my_safefree((char*)p)
618 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
619 #define del_XPVLV(p) my_safefree((char*)p)
621 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
622 #define del_XPVAV(p) my_safefree((char*)p)
624 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
625 #define del_XPVHV(p) my_safefree((char*)p)
627 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
628 #define del_XPVCV(p) my_safefree((char*)p)
630 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
631 #define del_XPVGV(p) my_safefree((char*)p)
633 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
634 #define del_XPVBM(p) my_safefree((char*)p)
636 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
637 #define del_XPVFM(p) my_safefree((char*)p)
639 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
640 #define del_XPVIO(p) my_safefree((char*)p)
643 sv_upgrade(register SV *sv, U32 mt)
653 if (SvTYPE(sv) == mt)
659 switch (SvTYPE(sv)) {
674 nv = (double)SvIVX(sv);
680 else if (mt < SVt_PVIV)
697 pv = (char*)SvRV(sv);
701 nv = (double)(unsigned long)pv;
717 else if (mt == SVt_NV)
728 del_XPVIV(SvANY(sv));
738 del_XPVNV(SvANY(sv));
748 del_XPVMG(SvANY(sv));
751 croak("Can't upgrade that kind of scalar");
756 croak("Can't upgrade to undef");
758 SvANY(sv) = new_XIV();
762 SvANY(sv) = new_XNV();
766 SvANY(sv) = new_XRV();
770 SvANY(sv) = new_XPV();
776 SvANY(sv) = new_XPVIV();
786 SvANY(sv) = new_XPVNV();
794 SvANY(sv) = new_XPVMG();
804 SvANY(sv) = new_XPVLV();
818 SvANY(sv) = new_XPVAV();
833 SvANY(sv) = new_XPVHV();
849 SvANY(sv) = new_XPVCV();
850 Zero(SvANY(sv), 1, XPVCV);
860 SvANY(sv) = new_XPVGV();
875 SvANY(sv) = new_XPVBM();
888 SvANY(sv) = new_XPVFM();
889 Zero(SvANY(sv), 1, XPVFM);
899 SvANY(sv) = new_XPVIO();
900 Zero(SvANY(sv), 1, XPVIO);
911 SvFLAGS(sv) &= ~SVTYPEMASK;
920 SV *t = sv_newmortal();
930 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
934 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
935 if (sv == &sv_undef) {
936 sv_catpv(t, "SV_UNDEF");
937 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
938 SVs_GMG|SVs_SMG|SVs_RMG)) &&
942 else if (sv == &sv_no) {
943 sv_catpv(t, "SV_NO");
944 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
945 SVs_GMG|SVs_SMG|SVs_RMG)) &&
946 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
953 sv_catpv(t, "SV_YES");
954 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
955 SVs_GMG|SVs_SMG|SVs_RMG)) &&
956 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
959 SvPVX(sv) && *SvPVX(sv) == '1' &&
965 else if (SvREFCNT(sv) == 0) {
971 if (SvCUR(t) + unref > 10) {
972 SvCUR(t) = unref + 3;
980 switch (SvTYPE(sv)) {
982 sv_catpv(t, "FREED");
986 sv_catpv(t, "UNDEF");
1001 sv_catpv(t, "PVIV");
1004 sv_catpv(t, "PVNV");
1007 sv_catpv(t, "PVMG");
1010 sv_catpv(t, "PVLV");
1020 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1022 sv_catpv(t, "CV()");
1040 sv_catpv(t, "(null)");
1042 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1044 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1046 else if (SvNOKp(sv)) {
1047 SET_NUMERIC_STANDARD();
1048 sv_catpvf(t, "(%g)",SvNVX(sv));
1050 else if (SvIOKp(sv))
1051 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1065 sv_backoff(register SV *sv)
1069 char *s = SvPVX(sv);
1070 SvLEN(sv) += SvIVX(sv);
1071 SvPVX(sv) -= SvIVX(sv);
1073 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1075 SvFLAGS(sv) &= ~SVf_OOK;
1081 sv_grow(register SV *sv, register I32 newlen)
1083 sv_grow(SV* sv, unsigned long newlen)
1088 #ifdef HAS_64K_LIMIT
1089 if (newlen >= 0x10000) {
1090 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1093 #endif /* HAS_64K_LIMIT */
1096 if (SvTYPE(sv) < SVt_PV) {
1097 sv_upgrade(sv, SVt_PV);
1100 else if (SvOOK(sv)) { /* pv is offset? */
1103 if (newlen > SvLEN(sv))
1104 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1105 #ifdef HAS_64K_LIMIT
1106 if (newlen >= 0x10000)
1112 if (newlen > SvLEN(sv)) { /* need more room? */
1114 Renew(s,newlen,char);
1116 New(703,s,newlen,char);
1118 SvLEN_set(sv, newlen);
1124 sv_setiv(register SV *sv, IV i)
1126 SV_CHECK_THINKFIRST(sv);
1127 switch (SvTYPE(sv)) {
1129 sv_upgrade(sv, SVt_IV);
1132 sv_upgrade(sv, SVt_PVNV);
1136 sv_upgrade(sv, SVt_PVIV);
1152 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1153 op_desc[op->op_type]);
1156 (void)SvIOK_only(sv); /* validate number */
1162 sv_setiv_mg(register SV *sv, IV i)
1169 sv_setuv(register SV *sv, UV u)
1174 sv_setnv(sv, (double)u);
1178 sv_setuv_mg(register SV *sv, UV u)
1185 sv_setnv(register SV *sv, double num)
1187 SV_CHECK_THINKFIRST(sv);
1188 switch (SvTYPE(sv)) {
1191 sv_upgrade(sv, SVt_NV);
1196 sv_upgrade(sv, SVt_PVNV);
1203 (void)SvOOK_off(sv);
1218 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1219 op_name[op->op_type]);
1223 (void)SvNOK_only(sv); /* validate number */
1228 sv_setnv_mg(register SV *sv, double num)
1235 not_a_number(SV *sv)
1241 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1242 /* each *s can expand to 4 chars + "...\0",
1243 i.e. need room for 8 chars */
1245 for (s = SvPVX(sv); *s && d < limit; s++) {
1247 if (ch & 128 && !isPRINT_LC(ch)) {
1256 else if (ch == '\r') {
1260 else if (ch == '\f') {
1264 else if (ch == '\\') {
1268 else if (isPRINT_LC(ch))
1283 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1284 op_name[op->op_type]);
1286 warn("Argument \"%s\" isn't numeric", tmpbuf);
1290 sv_2iv(register SV *sv)
1294 if (SvGMAGICAL(sv)) {
1299 if (SvNVX(sv) < 0.0)
1300 return I_V(SvNVX(sv));
1302 return (IV) U_V(SvNVX(sv));
1304 if (SvPOKp(sv) && SvLEN(sv))
1307 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1315 if (SvTHINKFIRST(sv)) {
1319 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1320 return SvIV(tmpstr);
1321 #endif /* OVERLOAD */
1322 return (IV)SvRV(sv);
1324 if (SvREADONLY(sv)) {
1326 if (SvNVX(sv) < 0.0)
1327 return I_V(SvNVX(sv));
1329 return (IV) U_V(SvNVX(sv));
1331 if (SvPOKp(sv) && SvLEN(sv))
1338 switch (SvTYPE(sv)) {
1340 sv_upgrade(sv, SVt_IV);
1343 sv_upgrade(sv, SVt_PVIV);
1346 sv_upgrade(sv, SVt_PVNV);
1351 if (SvNVX(sv) < 0.0)
1352 SvIVX(sv) = I_V(SvNVX(sv));
1354 SvUVX(sv) = U_V(SvNVX(sv));
1356 else if (SvPOKp(sv) && SvLEN(sv)) {
1358 SvIVX(sv) = asIV(sv);
1362 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1366 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1367 (unsigned long)sv,(long)SvIVX(sv)));
1372 sv_2uv(register SV *sv)
1376 if (SvGMAGICAL(sv)) {
1381 return U_V(SvNVX(sv));
1382 if (SvPOKp(sv) && SvLEN(sv))
1385 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1393 if (SvTHINKFIRST(sv)) {
1397 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1398 return SvUV(tmpstr);
1399 #endif /* OVERLOAD */
1400 return (UV)SvRV(sv);
1402 if (SvREADONLY(sv)) {
1404 return U_V(SvNVX(sv));
1406 if (SvPOKp(sv) && SvLEN(sv))
1413 switch (SvTYPE(sv)) {
1415 sv_upgrade(sv, SVt_IV);
1418 sv_upgrade(sv, SVt_PVIV);
1421 sv_upgrade(sv, SVt_PVNV);
1426 SvUVX(sv) = U_V(SvNVX(sv));
1428 else if (SvPOKp(sv) && SvLEN(sv)) {
1430 SvUVX(sv) = asUV(sv);
1433 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1440 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1441 (unsigned long)sv,SvUVX(sv)));
1446 sv_2nv(register SV *sv)
1450 if (SvGMAGICAL(sv)) {
1454 if (SvPOKp(sv) && SvLEN(sv)) {
1455 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1457 SET_NUMERIC_STANDARD();
1458 return atof(SvPVX(sv));
1461 return (double)SvIVX(sv);
1463 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1471 if (SvTHINKFIRST(sv)) {
1475 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1476 return SvNV(tmpstr);
1477 #endif /* OVERLOAD */
1478 return (double)(unsigned long)SvRV(sv);
1480 if (SvREADONLY(sv)) {
1481 if (SvPOKp(sv) && SvLEN(sv)) {
1482 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1484 SET_NUMERIC_STANDARD();
1485 return atof(SvPVX(sv));
1488 return (double)SvIVX(sv);
1494 if (SvTYPE(sv) < SVt_NV) {
1495 if (SvTYPE(sv) == SVt_IV)
1496 sv_upgrade(sv, SVt_PVNV);
1498 sv_upgrade(sv, SVt_NV);
1499 DEBUG_c(SET_NUMERIC_STANDARD());
1500 DEBUG_c(PerlIO_printf(Perl_debug_log,
1501 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1503 else if (SvTYPE(sv) < SVt_PVNV)
1504 sv_upgrade(sv, SVt_PVNV);
1506 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1508 SvNVX(sv) = (double)SvIVX(sv);
1510 else if (SvPOKp(sv) && SvLEN(sv)) {
1511 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1513 SET_NUMERIC_STANDARD();
1514 SvNVX(sv) = atof(SvPVX(sv));
1518 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1523 DEBUG_c(SET_NUMERIC_STANDARD());
1524 DEBUG_c(PerlIO_printf(Perl_debug_log,
1525 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1532 I32 numtype = looks_like_number(sv);
1536 return atol(SvPVX(sv));
1537 if (!numtype && dowarn)
1539 SET_NUMERIC_STANDARD();
1540 d = atof(SvPVX(sv));
1550 I32 numtype = looks_like_number(sv);
1554 return strtoul(SvPVX(sv), Null(char**), 10);
1556 if (!numtype && dowarn)
1558 SET_NUMERIC_STANDARD();
1559 return U_V(atof(SvPVX(sv)));
1563 looks_like_number(SV *sv)
1566 register char *send;
1567 register char *sbegin;
1575 else if (SvPOKp(sv))
1576 sbegin = SvPV(sv, len);
1579 send = sbegin + len;
1584 if (*s == '+' || *s == '-')
1587 /* next must be digit or '.' */
1591 } while (isDIGIT(*s));
1594 while (isDIGIT(*s)) /* optional digits after "." */
1598 else if (*s == '.') {
1600 /* no digits before '.' means we need digits after it */
1604 } while (isDIGIT(*s));
1613 * we return 1 if the number can be converted to _integer_ with atol()
1614 * and 2 if you need (int)atof().
1618 /* we can have an optional exponent part */
1619 if (*s == 'e' || *s == 'E') {
1622 if (*s == '+' || *s == '-')
1627 } while (isDIGIT(*s));
1636 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1642 sv_2pv(register SV *sv, STRLEN *lp)
1647 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1653 if (SvGMAGICAL(sv)) {
1660 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1665 SET_NUMERIC_STANDARD();
1666 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1671 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1680 if (SvTHINKFIRST(sv)) {
1684 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1685 return SvPV(tmpstr,*lp);
1686 #endif /* OVERLOAD */
1691 switch (SvTYPE(sv)) {
1700 case SVt_PVMG: s = "SCALAR"; break;
1701 case SVt_PVLV: s = "LVALUE"; break;
1702 case SVt_PVAV: s = "ARRAY"; break;
1703 case SVt_PVHV: s = "HASH"; break;
1704 case SVt_PVCV: s = "CODE"; break;
1705 case SVt_PVGV: s = "GLOB"; break;
1706 case SVt_PVFM: s = "FORMLINE"; break;
1707 case SVt_PVIO: s = "IO"; break;
1708 default: s = "UNKNOWN"; break;
1712 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1715 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1721 if (SvREADONLY(sv)) {
1723 SET_NUMERIC_STANDARD();
1724 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1729 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1739 (void)SvUPGRADE(sv, SVt_PV);
1741 if (SvTYPE(sv) < SVt_PVNV)
1742 sv_upgrade(sv, SVt_PVNV);
1745 olderrno = errno; /* some Xenix systems wipe out errno here */
1747 if (SvNVX(sv) == 0.0)
1748 (void)strcpy(s,"0");
1752 SET_NUMERIC_STANDARD();
1753 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1756 #ifdef FIXNEGATIVEZERO
1757 if (*s == '-' && s[1] == '0' && !s[2])
1766 else if (SvIOKp(sv)) {
1767 U32 oldIOK = SvIOK(sv);
1768 if (SvTYPE(sv) < SVt_PVIV)
1769 sv_upgrade(sv, SVt_PVIV);
1770 olderrno = errno; /* some Xenix systems wipe out errno here */
1771 sv_setpviv(sv, SvIVX(sv));
1781 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1786 *lp = s - SvPVX(sv);
1789 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1793 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1794 /* Sneaky stuff here */
1798 tsv = newSVpv(tmpbuf, 0);
1814 len = strlen(tmpbuf);
1816 #ifdef FIXNEGATIVEZERO
1817 if (len == 2 && t[0] == '-' && t[1] == '0') {
1822 (void)SvUPGRADE(sv, SVt_PV);
1824 s = SvGROW(sv, len + 1);
1832 /* This function is only called on magical items */
1834 sv_2bool(register SV *sv)
1846 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1847 return SvTRUE(tmpsv);
1849 #endif /* OVERLOAD */
1850 return SvRV(sv) != 0;
1853 register XPV* Xpvtmp;
1854 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1855 (*Xpvtmp->xpv_pv > '0' ||
1856 Xpvtmp->xpv_cur > 1 ||
1857 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1864 return SvIVX(sv) != 0;
1867 return SvNVX(sv) != 0.0;
1874 /* Note: sv_setsv() should not be called with a source string that needs
1875 * to be reused, since it may destroy the source string if it is marked
1880 sv_setsv(SV *dstr, register SV *sstr)
1883 register U32 sflags;
1889 SV_CHECK_THINKFIRST(dstr);
1892 stype = SvTYPE(sstr);
1893 dtype = SvTYPE(dstr);
1895 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1896 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1897 sv_setpvn(dstr, "", 0);
1898 (void)SvPOK_only(dstr);
1899 dtype = SvTYPE(dstr);
1904 #endif /* OVERLOAD */
1905 /* There's a lot of redundancy below but we're going for speed here */
1909 if (dtype != SVt_PVGV) {
1910 (void)SvOK_off(dstr);
1915 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1917 sv_upgrade(dstr, SVt_IV);
1918 else if (dtype == SVt_NV)
1919 sv_upgrade(dstr, SVt_PVNV);
1921 sv_upgrade(dstr, SVt_PVIV);
1925 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1927 sv_upgrade(dstr, SVt_NV);
1929 sv_upgrade(dstr, SVt_PVNV);
1934 sv_upgrade(dstr, SVt_RV);
1935 else if (dtype == SVt_PVGV &&
1936 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1939 if (curcop->cop_stash != GvSTASH(dstr))
1940 GvIMPORTED_on(dstr);
1950 sv_upgrade(dstr, SVt_PV);
1953 if (dtype < SVt_PVIV)
1954 sv_upgrade(dstr, SVt_PVIV);
1957 if (dtype < SVt_PVNV)
1958 sv_upgrade(dstr, SVt_PVNV);
1965 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1966 op_name[op->op_type]);
1968 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1972 if (dtype <= SVt_PVGV) {
1974 if (dtype != SVt_PVGV) {
1975 char *name = GvNAME(sstr);
1976 STRLEN len = GvNAMELEN(sstr);
1977 sv_upgrade(dstr, SVt_PVGV);
1978 sv_magic(dstr, dstr, '*', name, len);
1979 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
1980 GvNAME(dstr) = savepvn(name, len);
1981 GvNAMELEN(dstr) = len;
1982 SvFAKE_on(dstr); /* can coerce to non-glob */
1984 /* ahem, death to those who redefine active sort subs */
1985 else if (curstackinfo->si_type == SI_SORT
1986 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1987 croak("Can't redefine active sort subroutine %s",
1989 (void)SvOK_off(dstr);
1990 GvINTRO_off(dstr); /* one-shot flag */
1992 GvGP(dstr) = gp_ref(GvGP(sstr));
1994 if (curcop->cop_stash != GvSTASH(dstr))
1995 GvIMPORTED_on(dstr);
2002 if (SvGMAGICAL(sstr)) {
2004 if (SvTYPE(sstr) != stype) {
2005 stype = SvTYPE(sstr);
2006 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
2010 if (stype == SVt_PVLV)
2011 SvUPGRADE(dstr, SVt_PVNV);
2013 SvUPGRADE(dstr, stype);
2016 sflags = SvFLAGS(sstr);
2018 if (sflags & SVf_ROK) {
2019 if (dtype >= SVt_PV) {
2020 if (dtype == SVt_PVGV) {
2022 SV *sref = SvREFCNT_inc(SvRV(sstr));
2024 int intro = GvINTRO(dstr);
2028 GvGP(dstr)->gp_refcnt--;
2029 GvINTRO_off(dstr); /* one-shot flag */
2030 Newz(602,gp, 1, GP);
2031 GvGP(dstr) = gp_ref(gp);
2032 GvSV(dstr) = NEWSV(72,0);
2033 GvLINE(dstr) = curcop->cop_line;
2034 GvEGV(dstr) = (GV*)dstr;
2037 switch (SvTYPE(sref)) {
2040 SAVESPTR(GvAV(dstr));
2042 dref = (SV*)GvAV(dstr);
2043 GvAV(dstr) = (AV*)sref;
2044 if (curcop->cop_stash != GvSTASH(dstr))
2045 GvIMPORTED_AV_on(dstr);
2049 SAVESPTR(GvHV(dstr));
2051 dref = (SV*)GvHV(dstr);
2052 GvHV(dstr) = (HV*)sref;
2053 if (curcop->cop_stash != GvSTASH(dstr))
2054 GvIMPORTED_HV_on(dstr);
2058 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2059 SvREFCNT_dec(GvCV(dstr));
2060 GvCV(dstr) = Nullcv;
2061 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2064 SAVESPTR(GvCV(dstr));
2067 dref = (SV*)GvCV(dstr);
2068 if (GvCV(dstr) != (CV*)sref) {
2069 CV* cv = GvCV(dstr);
2071 if (!GvCVGEN((GV*)dstr) &&
2072 (CvROOT(cv) || CvXSUB(cv)))
2074 /* ahem, death to those who redefine
2075 * active sort subs */
2076 if (curstackinfo->si_type == SI_SORT &&
2077 sortcop == CvSTART(cv))
2079 "Can't redefine active sort subroutine %s",
2080 GvENAME((GV*)dstr));
2081 if (cv_const_sv(cv))
2082 warn("Constant subroutine %s redefined",
2083 GvENAME((GV*)dstr));
2085 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2086 && HvNAME(GvSTASH(CvGV(cv)))
2087 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2089 warn("Subroutine %s redefined",
2090 GvENAME((GV*)dstr));
2093 cv_ckproto(cv, (GV*)dstr,
2094 SvPOK(sref) ? SvPVX(sref) : Nullch);
2096 GvCV(dstr) = (CV*)sref;
2097 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2098 GvASSUMECV_on(dstr);
2101 if (curcop->cop_stash != GvSTASH(dstr))
2102 GvIMPORTED_CV_on(dstr);
2106 SAVESPTR(GvIOp(dstr));
2108 dref = (SV*)GvIOp(dstr);
2109 GvIOp(dstr) = (IO*)sref;
2113 SAVESPTR(GvSV(dstr));
2115 dref = (SV*)GvSV(dstr);
2117 if (curcop->cop_stash != GvSTASH(dstr))
2118 GvIMPORTED_SV_on(dstr);
2129 (void)SvOOK_off(dstr); /* backoff */
2130 Safefree(SvPVX(dstr));
2131 SvLEN(dstr)=SvCUR(dstr)=0;
2134 (void)SvOK_off(dstr);
2135 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2137 if (sflags & SVp_NOK) {
2139 SvNVX(dstr) = SvNVX(sstr);
2141 if (sflags & SVp_IOK) {
2142 (void)SvIOK_on(dstr);
2143 SvIVX(dstr) = SvIVX(sstr);
2146 if (SvAMAGIC(sstr)) {
2149 #endif /* OVERLOAD */
2151 else if (sflags & SVp_POK) {
2154 * Check to see if we can just swipe the string. If so, it's a
2155 * possible small lose on short strings, but a big win on long ones.
2156 * It might even be a win on short strings if SvPVX(dstr)
2157 * has to be allocated and SvPVX(sstr) has to be freed.
2160 if (SvTEMP(sstr) && /* slated for free anyway? */
2161 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2162 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2164 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2166 SvFLAGS(dstr) &= ~SVf_OOK;
2167 Safefree(SvPVX(dstr) - SvIVX(dstr));
2170 Safefree(SvPVX(dstr));
2172 (void)SvPOK_only(dstr);
2173 SvPV_set(dstr, SvPVX(sstr));
2174 SvLEN_set(dstr, SvLEN(sstr));
2175 SvCUR_set(dstr, SvCUR(sstr));
2177 (void)SvOK_off(sstr);
2178 SvPV_set(sstr, Nullch);
2183 else { /* have to copy actual string */
2184 STRLEN len = SvCUR(sstr);
2186 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2187 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2188 SvCUR_set(dstr, len);
2189 *SvEND(dstr) = '\0';
2190 (void)SvPOK_only(dstr);
2193 if (sflags & SVp_NOK) {
2195 SvNVX(dstr) = SvNVX(sstr);
2197 if (sflags & SVp_IOK) {
2198 (void)SvIOK_on(dstr);
2199 SvIVX(dstr) = SvIVX(sstr);
2202 else if (sflags & SVp_NOK) {
2203 SvNVX(dstr) = SvNVX(sstr);
2204 (void)SvNOK_only(dstr);
2206 (void)SvIOK_on(dstr);
2207 SvIVX(dstr) = SvIVX(sstr);
2210 else if (sflags & SVp_IOK) {
2211 (void)SvIOK_only(dstr);
2212 SvIVX(dstr) = SvIVX(sstr);
2215 if (dtype == SVt_PVGV) {
2217 warn("Undefined value assigned to typeglob");
2220 (void)SvOK_off(dstr);
2226 sv_setsv_mg(SV *dstr, register SV *sstr)
2228 sv_setsv(dstr,sstr);
2233 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2235 register char *dptr;
2236 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2237 elicit a warning, but it won't hurt. */
2238 SV_CHECK_THINKFIRST(sv);
2243 if (SvTYPE(sv) >= SVt_PV) {
2244 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2248 sv_upgrade(sv, SVt_PV);
2250 SvGROW(sv, len + 1);
2252 Move(ptr,dptr,len,char);
2255 (void)SvPOK_only(sv); /* validate pointer */
2260 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2262 sv_setpvn(sv,ptr,len);
2267 sv_setpv(register SV *sv, register const char *ptr)
2269 register STRLEN len;
2271 SV_CHECK_THINKFIRST(sv);
2277 if (SvTYPE(sv) >= SVt_PV) {
2278 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2282 sv_upgrade(sv, SVt_PV);
2284 SvGROW(sv, len + 1);
2285 Move(ptr,SvPVX(sv),len+1,char);
2287 (void)SvPOK_only(sv); /* validate pointer */
2292 sv_setpv_mg(register SV *sv, register const char *ptr)
2299 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2301 SV_CHECK_THINKFIRST(sv);
2302 (void)SvUPGRADE(sv, SVt_PV);
2308 Safefree(SvPVX(sv));
2309 Renew(ptr, len+1, char);
2312 SvLEN_set(sv, len+1);
2314 (void)SvPOK_only(sv); /* validate pointer */
2319 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2321 sv_usepvn(sv,ptr,len);
2326 sv_check_thinkfirst(register SV *sv)
2328 if (SvREADONLY(sv)) {
2330 if (curcop != &compiling)
2338 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2342 register STRLEN delta;
2344 if (!ptr || !SvPOKp(sv))
2346 SV_CHECK_THINKFIRST(sv);
2347 if (SvTYPE(sv) < SVt_PVIV)
2348 sv_upgrade(sv,SVt_PVIV);
2352 SvFLAGS(sv) |= SVf_OOK;
2354 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2355 delta = ptr - SvPVX(sv);
2363 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2368 junk = SvPV_force(sv, tlen);
2369 SvGROW(sv, tlen + len + 1);
2372 Move(ptr,SvPVX(sv)+tlen,len,char);
2375 (void)SvPOK_only(sv); /* validate pointer */
2380 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2382 sv_catpvn(sv,ptr,len);
2387 sv_catsv(SV *dstr, register SV *sstr)
2393 if (s = SvPV(sstr, len))
2394 sv_catpvn(dstr,s,len);
2398 sv_catsv_mg(SV *dstr, register SV *sstr)
2400 sv_catsv(dstr,sstr);
2405 sv_catpv(register SV *sv, register char *ptr)
2407 register STRLEN len;
2413 junk = SvPV_force(sv, tlen);
2415 SvGROW(sv, tlen + len + 1);
2418 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2420 (void)SvPOK_only(sv); /* validate pointer */
2425 sv_catpv_mg(register SV *sv, register char *ptr)
2441 sv_upgrade(sv, SVt_PV);
2442 SvGROW(sv, len + 1);
2447 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2450 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2454 if (SvREADONLY(sv)) {
2456 if (curcop != &compiling && !strchr("gBf", how))
2459 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2460 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2467 (void)SvUPGRADE(sv, SVt_PVMG);
2469 Newz(702,mg, 1, MAGIC);
2470 mg->mg_moremagic = SvMAGIC(sv);
2473 if (!obj || obj == sv || how == '#' || how == 'r')
2477 mg->mg_obj = SvREFCNT_inc(obj);
2478 mg->mg_flags |= MGf_REFCOUNTED;
2481 mg->mg_len = namlen;
2484 mg->mg_ptr = savepvn(name, namlen);
2485 else if (namlen == HEf_SVKEY)
2486 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2490 mg->mg_virtual = &vtbl_sv;
2494 mg->mg_virtual = &vtbl_amagic;
2497 mg->mg_virtual = &vtbl_amagicelem;
2502 #endif /* OVERLOAD */
2504 mg->mg_virtual = &vtbl_bm;
2507 mg->mg_virtual = &vtbl_env;
2510 mg->mg_virtual = &vtbl_fm;
2513 mg->mg_virtual = &vtbl_envelem;
2516 mg->mg_virtual = &vtbl_mglob;
2519 mg->mg_virtual = &vtbl_isa;
2522 mg->mg_virtual = &vtbl_isaelem;
2525 mg->mg_virtual = &vtbl_nkeys;
2532 mg->mg_virtual = &vtbl_dbline;
2536 mg->mg_virtual = &vtbl_mutex;
2538 #endif /* USE_THREADS */
2539 #ifdef USE_LOCALE_COLLATE
2541 mg->mg_virtual = &vtbl_collxfrm;
2543 #endif /* USE_LOCALE_COLLATE */
2545 mg->mg_virtual = &vtbl_pack;
2549 mg->mg_virtual = &vtbl_packelem;
2552 mg->mg_virtual = &vtbl_regexp;
2555 mg->mg_virtual = &vtbl_sig;
2558 mg->mg_virtual = &vtbl_sigelem;
2561 mg->mg_virtual = &vtbl_taint;
2565 mg->mg_virtual = &vtbl_uvar;
2568 mg->mg_virtual = &vtbl_vec;
2571 mg->mg_virtual = &vtbl_substr;
2574 mg->mg_virtual = &vtbl_defelem;
2577 mg->mg_virtual = &vtbl_glob;
2580 mg->mg_virtual = &vtbl_arylen;
2583 mg->mg_virtual = &vtbl_pos;
2585 case '~': /* Reserved for use by extensions not perl internals. */
2586 /* Useful for attaching extension internal data to perl vars. */
2587 /* Note that multiple extensions may clash if magical scalars */
2588 /* etc holding private data from one are passed to another. */
2592 croak("Don't know how to handle magic of type '%c'", how);
2596 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2600 sv_unmagic(SV *sv, int type)
2604 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2607 for (mg = *mgp; mg; mg = *mgp) {
2608 if (mg->mg_type == type) {
2609 MGVTBL* vtbl = mg->mg_virtual;
2610 *mgp = mg->mg_moremagic;
2611 if (vtbl && vtbl->svt_free)
2612 (*vtbl->svt_free)(sv, mg);
2613 if (mg->mg_ptr && mg->mg_type != 'g')
2614 if (mg->mg_len >= 0)
2615 Safefree(mg->mg_ptr);
2616 else if (mg->mg_len == HEf_SVKEY)
2617 SvREFCNT_dec((SV*)mg->mg_ptr);
2618 if (mg->mg_flags & MGf_REFCOUNTED)
2619 SvREFCNT_dec(mg->mg_obj);
2623 mgp = &mg->mg_moremagic;
2627 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2634 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2638 register char *midend;
2639 register char *bigend;
2643 croak("Can't modify non-existent substring");
2644 SvPV_force(bigstr, na);
2646 i = littlelen - len;
2647 if (i > 0) { /* string might grow */
2648 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2649 mid = big + offset + len;
2650 midend = bigend = big + SvCUR(bigstr);
2653 while (midend > mid) /* shove everything down */
2654 *--bigend = *--midend;
2655 Move(little,big+offset,littlelen,char);
2661 Move(little,SvPVX(bigstr)+offset,len,char);
2666 big = SvPVX(bigstr);
2669 bigend = big + SvCUR(bigstr);
2671 if (midend > bigend)
2672 croak("panic: sv_insert");
2674 if (mid - big > bigend - midend) { /* faster to shorten from end */
2676 Move(little, mid, littlelen,char);
2679 i = bigend - midend;
2681 Move(midend, mid, i,char);
2685 SvCUR_set(bigstr, mid - big);
2688 else if (i = mid - big) { /* faster from front */
2689 midend -= littlelen;
2691 sv_chop(bigstr,midend-i);
2696 Move(little, mid, littlelen,char);
2698 else if (littlelen) {
2699 midend -= littlelen;
2700 sv_chop(bigstr,midend);
2701 Move(little,midend,littlelen,char);
2704 sv_chop(bigstr,midend);
2709 /* make sv point to what nstr did */
2712 sv_replace(register SV *sv, register SV *nsv)
2714 U32 refcnt = SvREFCNT(sv);
2715 SV_CHECK_THINKFIRST(sv);
2716 if (SvREFCNT(nsv) != 1)
2717 warn("Reference miscount in sv_replace()");
2718 if (SvMAGICAL(sv)) {
2722 sv_upgrade(nsv, SVt_PVMG);
2723 SvMAGIC(nsv) = SvMAGIC(sv);
2724 SvFLAGS(nsv) |= SvMAGICAL(sv);
2730 assert(!SvREFCNT(sv));
2731 StructCopy(nsv,sv,SV);
2732 SvREFCNT(sv) = refcnt;
2733 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2738 sv_clear(register SV *sv)
2742 assert(SvREFCNT(sv) == 0);
2746 if (defstash) { /* Still have a symbol table? */
2752 sv_upgrade(&ref, SVt_RV);
2754 SvREADONLY_on(&ref); /* DESTROY() could be naughty */
2758 stash = SvSTASH(sv);
2759 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2762 PUSHSTACK(SI_DESTROY);
2763 SvRV(&ref) = SvREFCNT_inc(sv);
2768 perl_call_sv((SV*)GvCV(destructor),
2769 G_DISCARD|G_EVAL|G_KEEPERR);
2774 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2776 del_XRV(SvANY(&ref));
2780 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2781 SvOBJECT_off(sv); /* Curse the object. */
2782 if (SvTYPE(sv) != SVt_PVIO)
2783 --sv_objcount; /* XXX Might want something more general */
2787 croak("DESTROY created new reference to dead object");
2788 /* DESTROY gave object new lease on life */
2792 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2795 switch (SvTYPE(sv)) {
2797 if (IoIFP(sv) != PerlIO_stdin() &&
2798 IoIFP(sv) != PerlIO_stdout() &&
2799 IoIFP(sv) != PerlIO_stderr())
2801 Safefree(IoTOP_NAME(sv));
2802 Safefree(IoFMT_NAME(sv));
2803 Safefree(IoBOTTOM_NAME(sv));
2819 Safefree(GvNAME(sv));
2820 /* cannot decrease stash refcount yet, as we might recursively delete
2821 ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
2822 of stash until current sv is completely gone.
2823 -- JohnPC, 27 Mar 1998 */
2824 stash = GvSTASH(sv);
2831 (void)SvOOK_off(sv);
2836 SvREFCNT_dec(SvRV(sv));
2837 else if (SvPVX(sv) && SvLEN(sv))
2838 Safefree(SvPVX(sv));
2848 switch (SvTYPE(sv)) {
2864 del_XPVIV(SvANY(sv));
2867 del_XPVNV(SvANY(sv));
2870 del_XPVMG(SvANY(sv));
2873 del_XPVLV(SvANY(sv));
2876 del_XPVAV(SvANY(sv));
2879 del_XPVHV(SvANY(sv));
2882 del_XPVCV(SvANY(sv));
2885 del_XPVGV(SvANY(sv));
2886 /* code duplication for increased performance. */
2887 SvFLAGS(sv) &= SVf_BREAK;
2888 SvFLAGS(sv) |= SVTYPEMASK;
2889 /* decrease refcount of the stash that owns this GV, if any */
2891 SvREFCNT_dec(stash);
2892 return; /* not break, SvFLAGS reset already happened */
2894 del_XPVBM(SvANY(sv));
2897 del_XPVFM(SvANY(sv));
2900 del_XPVIO(SvANY(sv));
2903 SvFLAGS(sv) &= SVf_BREAK;
2904 SvFLAGS(sv) |= SVTYPEMASK;
2911 ATOMIC_INC(SvREFCNT(sv));
2918 int refcount_is_zero;
2922 if (SvREADONLY(sv)) {
2923 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2926 if (SvREFCNT(sv) == 0) {
2927 if (SvFLAGS(sv) & SVf_BREAK)
2929 if (in_clean_all) /* All is fair */
2931 warn("Attempt to free unreferenced scalar");
2934 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
2935 if (!refcount_is_zero)
2939 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2949 sv_len(register SV *sv)
2960 junk = SvPV(sv, len);
2965 sv_eq(register SV *str1, register SV *str2)
2977 pv1 = SvPV(str1, cur1);
2982 pv2 = SvPV(str2, cur2);
2987 return memEQ(pv1, pv2, cur1);
2991 sv_cmp(register SV *str1, register SV *str2)
2994 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
2996 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
3000 return cur2 ? -1 : 0;
3005 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
3008 return retval < 0 ? -1 : 1;
3013 return cur1 < cur2 ? -1 : 1;
3017 sv_cmp_locale(register SV *sv1, register SV *sv2)
3019 #ifdef USE_LOCALE_COLLATE
3025 if (collation_standard)
3029 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3031 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3033 if (!pv1 || !len1) {
3044 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3047 return retval < 0 ? -1 : 1;
3050 * When the result of collation is equality, that doesn't mean
3051 * that there are no differences -- some locales exclude some
3052 * characters from consideration. So to avoid false equalities,
3053 * we use the raw string as a tiebreaker.
3059 #endif /* USE_LOCALE_COLLATE */
3061 return sv_cmp(sv1, sv2);
3064 #ifdef USE_LOCALE_COLLATE
3066 * Any scalar variable may carry an 'o' magic that contains the
3067 * scalar data of the variable transformed to such a format that
3068 * a normal memory comparison can be used to compare the data
3069 * according to the locale settings.
3072 sv_collxfrm(SV *sv, STRLEN *nxp)
3076 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3077 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3082 Safefree(mg->mg_ptr);
3084 if ((xf = mem_collxfrm(s, len, &xlen))) {
3085 if (SvREADONLY(sv)) {
3088 return xf + sizeof(collation_ix);
3091 sv_magic(sv, 0, 'o', 0, 0);
3092 mg = mg_find(sv, 'o');
3105 if (mg && mg->mg_ptr) {
3107 return mg->mg_ptr + sizeof(collation_ix);
3115 #endif /* USE_LOCALE_COLLATE */
3118 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3123 register STDCHAR rslast;
3124 register STDCHAR *bp;
3128 SV_CHECK_THINKFIRST(sv);
3129 (void)SvUPGRADE(sv, SVt_PV);
3136 else if (RsPARA(rs)) {
3141 rsptr = SvPV(rs, rslen);
3142 rslast = rslen ? rsptr[rslen - 1] : '\0';
3144 if (RsPARA(rs)) { /* have to do this both before and after */
3145 do { /* to make sure file boundaries work right */
3148 i = PerlIO_getc(fp);
3152 PerlIO_ungetc(fp,i);
3158 /* See if we know enough about I/O mechanism to cheat it ! */
3160 /* This used to be #ifdef test - it is made run-time test for ease
3161 of abstracting out stdio interface. One call should be cheap
3162 enough here - and may even be a macro allowing compile
3166 if (PerlIO_fast_gets(fp)) {
3169 * We're going to steal some values from the stdio struct
3170 * and put EVERYTHING in the innermost loop into registers.
3172 register STDCHAR *ptr;
3176 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3177 /* An ungetc()d char is handled separately from the regular
3178 * buffer, so we getc() it back out and stuff it in the buffer.
3180 i = PerlIO_getc(fp);
3181 if (i == EOF) return 0;
3182 *(--((*fp)->_ptr)) = (unsigned char) i;
3186 /* Here is some breathtakingly efficient cheating */
3188 cnt = PerlIO_get_cnt(fp); /* get count into register */
3189 (void)SvPOK_only(sv); /* validate pointer */
3190 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3191 if (cnt > 80 && SvLEN(sv) > append) {
3192 shortbuffered = cnt - SvLEN(sv) + append + 1;
3193 cnt -= shortbuffered;
3197 /* remember that cnt can be negative */
3198 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3203 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3204 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3205 DEBUG_P(PerlIO_printf(Perl_debug_log,
3206 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3207 DEBUG_P(PerlIO_printf(Perl_debug_log,
3208 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3209 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3210 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3215 while (cnt > 0) { /* this | eat */
3217 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3218 goto thats_all_folks; /* screams | sed :-) */
3222 Copy(ptr, bp, cnt, char); /* this | eat */
3223 bp += cnt; /* screams | dust */
3224 ptr += cnt; /* louder | sed :-) */
3229 if (shortbuffered) { /* oh well, must extend */
3230 cnt = shortbuffered;
3232 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3234 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3235 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3239 DEBUG_P(PerlIO_printf(Perl_debug_log,
3240 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3241 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3242 DEBUG_P(PerlIO_printf(Perl_debug_log,
3243 "Screamer: pre: 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 /* This used to call 'filbuf' in stdio form, but as that behaves like
3247 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3248 another abstraction. */
3249 i = PerlIO_getc(fp); /* get more characters */
3250 DEBUG_P(PerlIO_printf(Perl_debug_log,
3251 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3252 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3253 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3254 cnt = PerlIO_get_cnt(fp);
3255 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3256 DEBUG_P(PerlIO_printf(Perl_debug_log,
3257 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3259 if (i == EOF) /* all done for ever? */
3260 goto thats_really_all_folks;
3262 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3264 SvGROW(sv, bpx + cnt + 2);
3265 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3267 *bp++ = i; /* store character from PerlIO_getc */
3269 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3270 goto thats_all_folks;
3274 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3275 memNE((char*)bp - rslen, rsptr, rslen))
3276 goto screamer; /* go back to the fray */
3277 thats_really_all_folks:
3279 cnt += shortbuffered;
3280 DEBUG_P(PerlIO_printf(Perl_debug_log,
3281 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3282 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3283 DEBUG_P(PerlIO_printf(Perl_debug_log,
3284 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3285 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3286 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3288 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3289 DEBUG_P(PerlIO_printf(Perl_debug_log,
3290 "Screamer: done, len=%ld, string=|%.*s|\n",
3291 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3295 /*The big, slow, and stupid way */
3300 register STDCHAR *bpe = buf + sizeof(buf);
3302 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3303 ; /* keep reading */
3307 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3308 /* Accomodate broken VAXC compiler, which applies U8 cast to
3309 * both args of ?: operator, causing EOF to change into 255
3311 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3315 sv_catpvn(sv, (char *) buf, cnt);
3317 sv_setpvn(sv, (char *) buf, cnt);
3319 if (i != EOF && /* joy */
3321 SvCUR(sv) < rslen ||
3322 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3326 * If we're reading from a TTY and we get a short read,
3327 * indicating that the user hit his EOF character, we need
3328 * to notice it now, because if we try to read from the TTY
3329 * again, the EOF condition will disappear.
3331 * The comparison of cnt to sizeof(buf) is an optimization
3332 * that prevents unnecessary calls to feof().
3336 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3341 if (RsPARA(rs)) { /* have to do this both before and after */
3342 while (i != EOF) { /* to make sure file boundaries work right */
3343 i = PerlIO_getc(fp);
3345 PerlIO_ungetc(fp,i);
3352 win32_strip_return(sv);
3355 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3360 sv_inc(register SV *sv)
3367 if (SvTHINKFIRST(sv)) {
3368 if (SvREADONLY(sv)) {
3370 if (curcop != &compiling)
3375 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3376 #endif /* OVERLOAD */
3382 flags = SvFLAGS(sv);
3383 if (flags & SVp_NOK) {
3384 (void)SvNOK_only(sv);
3388 if (flags & SVp_IOK) {
3389 if (SvIVX(sv) == IV_MAX)
3390 sv_setnv(sv, (double)IV_MAX + 1.0);
3392 (void)SvIOK_only(sv);
3397 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3398 if ((flags & SVTYPEMASK) < SVt_PVNV)
3399 sv_upgrade(sv, SVt_NV);
3401 (void)SvNOK_only(sv);
3405 while (isALPHA(*d)) d++;
3406 while (isDIGIT(*d)) d++;
3408 SET_NUMERIC_STANDARD();
3409 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3413 while (d >= SvPVX(sv)) {
3423 *(d--) -= 'z' - 'a' + 1;
3426 /* oh,oh, the number grew */
3427 SvGROW(sv, SvCUR(sv) + 2);
3429 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3438 sv_dec(register SV *sv)
3444 if (SvTHINKFIRST(sv)) {
3445 if (SvREADONLY(sv)) {
3447 if (curcop != &compiling)
3452 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3453 #endif /* OVERLOAD */
3459 flags = SvFLAGS(sv);
3460 if (flags & SVp_NOK) {
3462 (void)SvNOK_only(sv);
3465 if (flags & SVp_IOK) {
3466 if (SvIVX(sv) == IV_MIN)
3467 sv_setnv(sv, (double)IV_MIN - 1.0);
3469 (void)SvIOK_only(sv);
3474 if (!(flags & SVp_POK)) {
3475 if ((flags & SVTYPEMASK) < SVt_PVNV)
3476 sv_upgrade(sv, SVt_NV);
3478 (void)SvNOK_only(sv);
3481 SET_NUMERIC_STANDARD();
3482 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3485 /* Make a string that will exist for the duration of the expression
3486 * evaluation. Actually, it may have to last longer than that, but
3487 * hopefully we won't free it until it has been assigned to a
3488 * permanent location. */
3494 tmps_max += (tmps_max < 512) ? 128 : 512;
3495 Renew(tmps_stack, tmps_max, SV*);
3499 sv_mortalcopy(SV *oldstr)
3508 sv_setsv(sv,oldstr);
3509 if (++tmps_ix >= tmps_max)
3511 tmps_stack[tmps_ix] = sv;
3525 SvFLAGS(sv) = SVs_TEMP;
3526 if (++tmps_ix >= tmps_max)
3528 tmps_stack[tmps_ix] = sv;
3532 /* same thing without the copying */
3535 sv_2mortal(register SV *sv)
3540 if (SvREADONLY(sv) && curcop != &compiling)
3542 if (++tmps_ix >= tmps_max)
3544 tmps_stack[tmps_ix] = sv;
3550 newSVpv(char *s, STRLEN len)
3560 sv_setpvn(sv,s,len);
3575 sv_setpvn(sv,s,len);
3581 newSVpvf(const char* pat, ...)
3585 newSVpvf(pat, va_alist)
3598 va_start(args, pat);
3602 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3644 sv_upgrade(sv, SVt_RV);
3646 SvRV(sv) = SvREFCNT_inc(ref);
3654 Perl_newRV_noinc(SV *ref)
3663 /* make an exact duplicate of old */
3666 newSVsv(register SV *old)
3672 if (SvTYPE(old) == SVTYPEMASK) {
3673 warn("semi-panic: attempt to dup freed string");
3691 sv_reset(register char *s, HV *stash)
3704 if (!*s) { /* reset ?? searches */
3705 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3706 pm->op_pmflags &= ~PMf_USED;
3711 /* reset variables */
3713 if (!HvARRAY(stash))
3716 Zero(todo, 256, char);
3723 for ( ; i <= max; i++) {
3726 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3727 for (entry = HvARRAY(stash)[i];
3729 entry = HeNEXT(entry)) {
3730 if (!todo[(U8)*HeKEY(entry)])
3732 gv = (GV*)HeVAL(entry);
3735 if (SvTYPE(sv) >= SVt_PV) {
3737 if (SvPVX(sv) != Nullch)
3744 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3746 #ifndef VMS /* VMS has no environ array */
3748 environ[0] = Nullch;
3762 switch (SvTYPE(sv)) {
3770 croak("Bad filehandle: %s", GvNAME(gv));
3774 croak(no_usym, "filehandle");
3776 return sv_2io(SvRV(sv));
3777 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3783 croak("Bad filehandle: %s", SvPV(sv,na));
3790 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3796 return *gvp = Nullgv, Nullcv;
3797 switch (SvTYPE(sv)) {
3817 if (SvTYPE(cv) != SVt_PVCV)
3818 croak("Not a subroutine reference");
3826 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3832 if (lref && !GvCVu(gv)) {
3835 tmpsv = NEWSV(704,0);
3836 gv_efullname3(tmpsv, gv, Nullch);
3837 newSUB(start_subparse(FALSE, 0),
3838 newSVOP(OP_CONST, 0, tmpsv),
3843 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3850 sv_true(register SV *sv)
3857 if ((tXpv = (XPV*)SvANY(sv)) &&
3858 (*tXpv->xpv_pv > '0' ||
3859 tXpv->xpv_cur > 1 ||
3860 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3867 return SvIVX(sv) != 0;
3870 return SvNVX(sv) != 0.0;
3872 return sv_2bool(sv);
3878 sv_iv(register SV *sv)
3886 sv_uv(register SV *sv)
3894 sv_nv(register SV *sv)
3902 sv_pvn(SV *sv, STRLEN *lp)
3908 return sv_2pv(sv, lp);
3912 sv_pvn_force(SV *sv, STRLEN *lp)
3916 if (SvREADONLY(sv)) {
3918 if (curcop != &compiling)
3926 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3927 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3934 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3935 op_name[op->op_type]);
3940 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3945 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3946 SvGROW(sv, len + 1);
3947 Move(s,SvPVX(sv),len,char);
3952 SvPOK_on(sv); /* validate pointer */
3954 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3955 (unsigned long)sv,SvPVX(sv)));
3962 sv_reftype(SV *sv, int ob)
3964 if (ob && SvOBJECT(sv))
3965 return HvNAME(SvSTASH(sv));
3967 switch (SvTYPE(sv)) {
3981 case SVt_PVLV: return "LVALUE";
3982 case SVt_PVAV: return "ARRAY";
3983 case SVt_PVHV: return "HASH";
3984 case SVt_PVCV: return "CODE";
3985 case SVt_PVGV: return "GLOB";
3986 case SVt_PVFM: return "FORMLINE";
3987 default: return "UNKNOWN";
4008 sv_isa(SV *sv, char *name)
4020 return strEQ(HvNAME(SvSTASH(sv)), name);
4024 newSVrv(SV *rv, char *classname)
4034 SV_CHECK_THINKFIRST(rv);
4037 #endif /* OVERLOAD */
4039 if (SvTYPE(rv) < SVt_RV)
4040 sv_upgrade(rv, SVt_RV);
4043 SvRV(rv) = SvREFCNT_inc(sv);
4047 HV* stash = gv_stashpv(classname, TRUE);
4048 (void)sv_bless(rv, stash);
4054 sv_setref_pv(SV *rv, char *classname, void *pv)
4057 sv_setsv(rv, &sv_undef);
4061 sv_setiv(newSVrv(rv,classname), (IV)pv);
4066 sv_setref_iv(SV *rv, char *classname, IV iv)
4068 sv_setiv(newSVrv(rv,classname), iv);
4073 sv_setref_nv(SV *rv, char *classname, double nv)
4075 sv_setnv(newSVrv(rv,classname), nv);
4080 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4082 sv_setpvn(newSVrv(rv,classname), pv, n);
4087 sv_bless(SV *sv, HV *stash)
4092 croak("Can't bless non-reference value");
4094 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4095 if (SvREADONLY(ref))
4097 if (SvOBJECT(ref)) {
4098 if (SvTYPE(ref) != SVt_PVIO)
4100 SvREFCNT_dec(SvSTASH(ref));
4104 if (SvTYPE(ref) != SVt_PVIO)
4106 (void)SvUPGRADE(ref, SVt_PVMG);
4107 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4114 #endif /* OVERLOAD */
4122 assert(SvTYPE(sv) == SVt_PVGV);
4127 SvREFCNT_dec(GvSTASH(sv));
4128 GvSTASH(sv) = Nullhv;
4130 sv_unmagic(sv, '*');
4131 Safefree(GvNAME(sv));
4133 SvFLAGS(sv) &= ~SVTYPEMASK;
4134 SvFLAGS(sv) |= SVt_PVMG;
4144 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4147 sv_2mortal(rv); /* Schedule for freeing later */
4153 sv_magic((sv), Nullsv, 't', Nullch, 0);
4159 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4160 MAGIC *mg = mg_find(sv, 't');
4169 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4170 MAGIC *mg = mg_find(sv, 't');
4171 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4178 sv_setpviv(SV *sv, IV iv)
4181 char buf[TYPE_DIGITS(UV)];
4182 char *ptr = buf + sizeof(buf);
4187 sv_setpvn(sv, "", 0);
4196 *--ptr = '0' + (uv % 10);
4198 len = (buf + sizeof(buf)) - ptr;
4199 /* taking advantage of SvCUR(sv) == 0 */
4200 SvGROW(sv, sign + len + 1);
4204 memcpy(p, ptr, len);
4207 SvCUR(sv) = p - SvPVX(sv);
4212 sv_setpviv_mg(SV *sv, IV iv)
4220 sv_setpvf(SV *sv, const char* pat, ...)
4224 sv_setpvf(sv, pat, va_alist)
4232 va_start(args, pat);
4236 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4243 sv_setpvf_mg(SV *sv, const char* pat, ...)
4247 sv_setpvf_mg(sv, pat, va_alist)
4255 va_start(args, pat);
4259 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4266 sv_catpvf(SV *sv, const char* pat, ...)
4270 sv_catpvf(sv, pat, va_alist)
4278 va_start(args, pat);
4282 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4288 sv_catpvf_mg(SV *sv, const char* pat, ...)
4292 sv_catpvf_mg(sv, pat, va_alist)
4300 va_start(args, pat);
4304 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4310 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4312 sv_setpvn(sv, "", 0);
4313 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4317 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4325 static char nullstr[] = "(null)";
4327 /* no matter what, this is a string now */
4328 (void)SvPV_force(sv, origlen);
4330 /* special-case "", "%s", and "%_" */
4333 if (patlen == 2 && pat[0] == '%') {
4337 char *s = va_arg(*args, char*);
4338 sv_catpv(sv, s ? s : nullstr);
4340 else if (svix < svmax)
4341 sv_catsv(sv, *svargs);
4345 sv_catsv(sv, va_arg(*args, SV*));
4348 /* See comment on '_' below */
4353 patend = (char*)pat + patlen;
4354 for (p = (char*)pat; p < patend; p = q) {
4362 bool has_precis = FALSE;
4366 STRLEN esignlen = 0;
4368 char *eptr = Nullch;
4370 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4372 static char *efloatbuf = Nullch;
4373 static STRLEN efloatsize = 0;
4385 for (q = p; q < patend && *q != '%'; ++q) ;
4387 sv_catpvn(sv, p, q - p);
4425 case '1': case '2': case '3':
4426 case '4': case '5': case '6':
4427 case '7': case '8': case '9':
4430 width = width * 10 + (*q++ - '0');
4435 i = va_arg(*args, int);
4437 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4439 width = (i < 0) ? -i : i;
4450 i = va_arg(*args, int);
4452 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4453 precis = (i < 0) ? 0 : i;
4459 precis = precis * 10 + (*q++ - '0');
4468 #if 0 /* when quads have better support within Perl */
4469 if (*(q + 1) == 'l') {
4495 c = va_arg(*args, int);
4497 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4504 eptr = va_arg(*args, char*);
4506 elen = strlen(eptr);
4509 elen = sizeof nullstr - 1;
4512 else if (svix < svmax)
4513 eptr = SvPVx(svargs[svix++], elen);
4518 * The "%_" hack might have to be changed someday,
4519 * if ISO or ANSI decide to use '_' for something.
4520 * So we keep it hidden from users' code.
4524 eptr = SvPVx(va_arg(*args, SV*), elen);
4527 if (has_precis && elen > precis)
4535 uv = (UV)va_arg(*args, void*);
4537 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4548 case 'h': iv = (short)va_arg(*args, int); break;
4549 default: iv = va_arg(*args, int); break;
4550 case 'l': iv = va_arg(*args, long); break;
4551 case 'V': iv = va_arg(*args, IV); break;
4555 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4557 case 'h': iv = (short)iv; break;
4558 default: iv = (int)iv; break;
4559 case 'l': iv = (long)iv; break;
4566 esignbuf[esignlen++] = plus;
4570 esignbuf[esignlen++] = '-';
4596 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4597 default: uv = va_arg(*args, unsigned); break;
4598 case 'l': uv = va_arg(*args, unsigned long); break;
4599 case 'V': uv = va_arg(*args, UV); break;
4603 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4605 case 'h': uv = (unsigned short)uv; break;
4606 default: uv = (unsigned)uv; break;
4607 case 'l': uv = (unsigned long)uv; break;
4613 eptr = ebuf + sizeof ebuf;
4619 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4625 esignbuf[esignlen++] = '0';
4626 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4632 *--eptr = '0' + dig;
4634 if (alt && *eptr != '0')
4637 default: /* it had better be ten or less */
4640 *--eptr = '0' + dig;
4641 } while (uv /= base);
4644 elen = (ebuf + sizeof ebuf) - eptr;
4647 zeros = precis - elen;
4648 else if (precis == 0 && elen == 1 && *eptr == '0')
4653 /* FLOATING POINT */
4656 c = 'f'; /* maybe %F isn't supported here */
4662 /* This is evil, but floating point is even more evil */
4665 nv = va_arg(*args, double);
4667 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4670 if (c != 'e' && c != 'E') {
4672 (void)frexp(nv, &i);
4673 if (i == PERL_INT_MIN)
4674 die("panic: frexp");
4676 need = BIT_DIGITS(i);
4678 need += has_precis ? precis : 6; /* known default */
4682 need += 20; /* fudge factor */
4683 if (efloatsize < need) {
4684 Safefree(efloatbuf);
4685 efloatsize = need + 20; /* more fudge */
4686 New(906, efloatbuf, efloatsize, char);
4689 eptr = ebuf + sizeof ebuf;
4694 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4699 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4711 (void)sprintf(efloatbuf, eptr, nv);
4714 elen = strlen(efloatbuf);
4718 * User-defined locales may include arbitrary characters.
4719 * And, unfortunately, some system may alloc the "C" locale
4720 * to be overridden by a malicious user.
4723 *used_locale = TRUE;
4724 #endif /* LC_NUMERIC */
4731 i = SvCUR(sv) - origlen;
4734 case 'h': *(va_arg(*args, short*)) = i; break;
4735 default: *(va_arg(*args, int*)) = i; break;
4736 case 'l': *(va_arg(*args, long*)) = i; break;
4737 case 'V': *(va_arg(*args, IV*)) = i; break;
4740 else if (svix < svmax)
4741 sv_setuv(svargs[svix++], (UV)i);
4742 continue; /* not "break" */
4748 if (!args && dowarn &&
4749 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4750 SV *msg = sv_newmortal();
4751 sv_setpvf(msg, "Invalid conversion in %s: ",
4752 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4754 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4757 sv_catpv(msg, "end of string");
4758 warn("%_", msg); /* yes, this is reentrant */
4761 /* output mangled stuff ... */
4767 /* ... right here, because formatting flags should not apply */
4768 SvGROW(sv, SvCUR(sv) + elen + 1);
4770 memcpy(p, eptr, elen);
4773 SvCUR(sv) = p - SvPVX(sv);
4774 continue; /* not "break" */
4777 have = esignlen + zeros + elen;
4778 need = (have > width ? have : width);
4781 SvGROW(sv, SvCUR(sv) + need + 1);
4783 if (esignlen && fill == '0') {
4784 for (i = 0; i < esignlen; i++)
4788 memset(p, fill, gap);
4791 if (esignlen && fill != '0') {
4792 for (i = 0; i < esignlen; i++)
4796 for (i = zeros; i; i--)
4800 memcpy(p, eptr, elen);
4804 memset(p, ' ', gap);
4808 SvCUR(sv) = p - SvPVX(sv);
4816 SV *d = sv_newmortal();
4822 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4826 flags = SvFLAGS(sv);
4829 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4830 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4831 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4832 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4833 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4834 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4835 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4836 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4837 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4838 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4840 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4841 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4842 if (flags & SVf_POK) sv_catpv(d, "POK,");
4843 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4844 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4845 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4846 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4849 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4850 #endif /* OVERLOAD */
4851 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4852 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4853 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4854 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4859 if (CvANON(sv)) sv_catpv(d, "ANON,");
4860 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4861 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4862 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4863 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4866 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4867 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4870 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4871 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4872 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4873 if (GvIMPORTED(sv)) {
4874 sv_catpv(d, "IMPORT");
4875 if (GvIMPORTED(sv) == GVf_IMPORTED)
4876 sv_catpv(d, "ALL,");
4879 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4880 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4881 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4882 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4887 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4888 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4892 if (*(SvEND(d) - 1) == ',')
4893 SvPVX(d)[--SvCUR(d)] = '\0';
4897 PerlIO_printf(Perl_debug_log, "SV = ");
4900 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4903 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4906 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4909 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4912 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4915 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4918 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4921 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4924 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4927 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4930 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4933 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4936 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4939 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4942 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4945 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4948 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4951 if (type >= SVt_PVIV || type == SVt_IV)
4952 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4953 if (type >= SVt_PVNV || type == SVt_NV) {
4954 SET_NUMERIC_STANDARD();
4955 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4958 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4964 if (type <= SVt_PVLV) {
4966 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4967 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4969 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4971 if (type >= SVt_PVMG) {
4973 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4976 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4980 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4981 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4982 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4983 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4984 sv_dump(LvTARG(sv));
4987 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4988 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4989 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
4990 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4991 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4992 flags = AvFLAGS(sv);
4994 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4995 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4996 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4997 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4998 SvCUR(d) ? SvPVX(d) + 1 : "");
5001 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
5002 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
5003 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
5004 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
5005 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
5006 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
5008 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
5010 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
5014 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
5017 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
5018 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
5019 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
5020 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
5021 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
5022 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
5023 if (CvGV(sv) && GvNAME(CvGV(sv))) {
5024 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
5026 PerlIO_printf(Perl_debug_log, "\n");
5028 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
5029 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
5030 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
5031 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5033 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5034 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5035 #endif /* USE_THREADS */
5036 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5037 (unsigned long)CvFLAGS(sv));
5038 if (type == SVt_PVFM)
5039 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5042 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5043 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5044 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n",
5045 SvTYPE(GvSTASH(sv)) == SVt_PVHV ? HvNAME(GvSTASH(sv)) : "(deleted)");
5046 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5047 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5048 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5049 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5050 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5051 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5052 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5053 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5054 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5055 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5056 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5057 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5058 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5061 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5062 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5063 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5064 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5065 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5066 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5067 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5068 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5069 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5070 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5071 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5072 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5073 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5074 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5075 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5076 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));