3 * Copyright (c) 1991-1994, 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));
61 typedef void (*SVFUNC) _((SV*));
67 (p) = (SV*)safemalloc(sizeof(SV)); \
80 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
82 #define REG_REPLACE(sv,a,b) \
84 void* p = sv->sv_any; \
85 I32 h = REGHASH(sv, regsize); \
87 while (registry[i] != (a)) { \
91 die("SV registry bug"); \
96 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
97 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
103 if (sv_count >= (regsize >> 1))
105 SV **oldreg = registry;
106 I32 oldsize = regsize;
108 regsize = regsize ? ((regsize << 2) + 1) : 2037;
109 registry = (SV**)safemalloc(regsize * sizeof(SV*));
110 memzero(registry, regsize * sizeof(SV*));
115 for (i = 0; i < oldsize; ++i) {
116 SV* oldsv = oldreg[i];
142 for (i = 0; i < regsize; ++i) {
143 SV* sv = registry[i];
150 sv_add_arena(ptr, size, flags)
155 if (!(flags & SVf_FAKE))
162 * "A time to plant, and a time to uproot what was planted..."
165 #define plant_SV(p) \
167 SvANY(p) = (void *)sv_root; \
168 SvFLAGS(p) = SVTYPEMASK; \
173 #define uproot_SV(p) \
176 sv_root = (SV*)SvANY(p); \
203 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
205 svend = &sva[SvREFCNT(sva)];
206 if (p >= sv && p < svend)
210 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
217 #else /* ! DEBUGGING */
219 #define del_SV(p) plant_SV(p)
221 #endif /* DEBUGGING */
224 sv_add_arena(ptr, size, flags)
232 Zero(sva, size, char);
234 /* The first SV in an arena isn't an SV. */
235 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
236 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
237 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
242 svend = &sva[SvREFCNT(sva) - 1];
245 SvANY(sv) = (void *)(SV*)(sv + 1);
246 SvFLAGS(sv) = SVTYPEMASK;
250 SvFLAGS(sv) = SVTYPEMASK;
259 sv_add_arena(nice_chunk, nice_chunk_size, 0);
263 char *chunk; /* must use New here to match call to */
264 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
265 sv_add_arena(chunk, 1008, 0);
279 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
280 svend = &sva[SvREFCNT(sva)];
281 for (sv = sva + 1; sv < svend; ++sv) {
282 if (SvTYPE(sv) != SVTYPEMASK)
294 if (SvTYPE(sv) != SVTYPEMASK) {
295 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
296 PerlIO_printf(PerlIO_stderr(), "****\n");
304 visit(do_report_used);
313 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
314 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
320 /* XXX Might want to check arrays, etc. */
323 #ifndef DISABLE_DESTRUCTOR_KLUDGE
325 do_clean_named_objs(sv)
328 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
329 do_clean_objs(GvSV(sv));
333 static bool in_clean_objs = FALSE;
338 in_clean_objs = TRUE;
339 #ifndef DISABLE_DESTRUCTOR_KLUDGE
340 visit(do_clean_named_objs);
342 visit(do_clean_objs);
343 in_clean_objs = FALSE;
350 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
351 SvFLAGS(sv) |= SVf_BREAK;
355 static bool in_clean_all = FALSE;
362 in_clean_all = FALSE;
371 /* Free arenas here, but be careful about fake ones. (We assume
372 contiguity of the fake ones with the corresponding real ones.) */
374 for (sva = sv_arenaroot; sva; sva = svanext) {
375 svanext = (SV*) SvANY(sva);
376 while (svanext && SvFAKE(svanext))
377 svanext = (SV*) SvANY(svanext);
380 Safefree((void *)sva);
394 * See comment in more_xiv() -- RAM.
396 xiv_root = (IV**)*xiv;
397 return (XPVIV*)((char*)xiv - sizeof(XPV));
406 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
407 *xiv = (IV *)xiv_root;
415 register IV** xivend;
416 XPV* ptr = (XPV*)safemalloc(1008);
417 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
418 xiv_arenaroot = ptr; /* to keep Purify happy */
421 xivend = &xiv[1008 / sizeof(IV *) - 1];
422 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
424 while (xiv < xivend) {
425 *xiv = (IV *)(xiv + 1);
438 xnv_root = *(double**)xnv;
439 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
448 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
449 *(double**)xnv = xnv_root;
456 register double* xnv;
457 register double* xnvend;
458 xnv = (double*)safemalloc(1008);
459 xnvend = &xnv[1008 / sizeof(double) - 1];
460 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
462 while (xnv < xnvend) {
463 *(double**)xnv = (double*)(xnv + 1);
476 xrv_root = (XRV*)xrv->xrv_rv;
486 p->xrv_rv = (SV*)xrv_root;
494 register XRV* xrvend;
495 xrv_root = (XRV*)safemalloc(1008);
497 xrvend = &xrv[1008 / sizeof(XRV) - 1];
498 while (xrv < xrvend) {
499 xrv->xrv_rv = (SV*)(xrv + 1);
512 xpv_root = (XPV*)xpv->xpv_pv;
522 p->xpv_pv = (char*)xpv_root;
530 register XPV* xpvend;
531 xpv_root = (XPV*)safemalloc(1008);
533 xpvend = &xpv[1008 / sizeof(XPV) - 1];
534 while (xpv < xpvend) {
535 xpv->xpv_pv = (char*)(xpv + 1);
543 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
544 #define del_XIV(p) free((char*)p)
546 #define new_XIV() (void*)new_xiv()
547 #define del_XIV(p) del_xiv(p)
551 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
552 #define del_XNV(p) free((char*)p)
554 #define new_XNV() (void*)new_xnv()
555 #define del_XNV(p) del_xnv(p)
559 #define new_XRV() (void*)safemalloc(sizeof(XRV))
560 #define del_XRV(p) free((char*)p)
562 #define new_XRV() (void*)new_xrv()
563 #define del_XRV(p) del_xrv(p)
567 #define new_XPV() (void*)safemalloc(sizeof(XPV))
568 #define del_XPV(p) free((char*)p)
570 #define new_XPV() (void*)new_xpv()
571 #define del_XPV(p) del_xpv(p)
574 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
575 #define del_XPVIV(p) free((char*)p)
577 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
578 #define del_XPVNV(p) free((char*)p)
580 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
581 #define del_XPVMG(p) free((char*)p)
583 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
584 #define del_XPVLV(p) free((char*)p)
586 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
587 #define del_XPVAV(p) free((char*)p)
589 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
590 #define del_XPVHV(p) free((char*)p)
592 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
593 #define del_XPVCV(p) free((char*)p)
595 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
596 #define del_XPVGV(p) free((char*)p)
598 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
599 #define del_XPVBM(p) free((char*)p)
601 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
602 #define del_XPVFM(p) free((char*)p)
604 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
605 #define del_XPVIO(p) free((char*)p)
620 if (SvTYPE(sv) == mt)
626 switch (SvTYPE(sv)) {
641 nv = (double)SvIVX(sv);
647 else if (mt < SVt_PVIV)
664 pv = (char*)SvRV(sv);
668 nv = (double)(unsigned long)pv;
684 else if (mt == SVt_NV)
695 del_XPVIV(SvANY(sv));
705 del_XPVNV(SvANY(sv));
715 del_XPVMG(SvANY(sv));
718 croak("Can't upgrade that kind of scalar");
723 croak("Can't upgrade to undef");
725 SvANY(sv) = new_XIV();
729 SvANY(sv) = new_XNV();
733 SvANY(sv) = new_XRV();
737 SvANY(sv) = new_XPV();
743 SvANY(sv) = new_XPVIV();
753 SvANY(sv) = new_XPVNV();
761 SvANY(sv) = new_XPVMG();
771 SvANY(sv) = new_XPVLV();
785 SvANY(sv) = new_XPVAV();
800 SvANY(sv) = new_XPVHV();
816 SvANY(sv) = new_XPVCV();
817 Zero(SvANY(sv), 1, XPVCV);
827 SvANY(sv) = new_XPVGV();
842 SvANY(sv) = new_XPVBM();
855 SvANY(sv) = new_XPVFM();
856 Zero(SvANY(sv), 1, XPVFM);
866 SvANY(sv) = new_XPVIO();
867 Zero(SvANY(sv), 1, XPVIO);
878 SvFLAGS(sv) &= ~SVTYPEMASK;
896 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
900 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
901 if (sv == &sv_undef) {
902 strcpy(t, "SV_UNDEF");
903 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
904 SVs_GMG|SVs_SMG|SVs_RMG)) &&
908 else if (sv == &sv_no) {
910 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
911 SVs_GMG|SVs_SMG|SVs_RMG)) &&
912 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
920 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
921 SVs_GMG|SVs_SMG|SVs_RMG)) &&
922 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
925 SvPVX(sv) && *SvPVX(sv) == '1' &&
932 else if (SvREFCNT(sv) == 0) {
938 if (t - tokenbuf + unref > 10) {
939 strcpy(tokenbuf + unref + 3,"...");
945 switch (SvTYPE(sv)) {
985 sprintf(t, "CV(%s)", GvNAME(CvGV(sv)));
1006 strcpy(t, "(null)");
1008 sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1010 sprintf(t,"(\"%.127s\")",SvPVX(sv));
1012 else if (SvNOKp(sv)) {
1013 SET_NUMERIC_STANDARD();
1014 sprintf(t,"(%g)",SvNVX(sv));
1016 else if (SvIOKp(sv))
1017 sprintf(t,"(%ld)",(long)SvIVX(sv));
1038 char *s = SvPVX(sv);
1039 SvLEN(sv) += SvIVX(sv);
1040 SvPVX(sv) -= SvIVX(sv);
1042 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1044 SvFLAGS(sv) &= ~SVf_OOK;
1052 register I32 newlen;
1054 unsigned long newlen;
1059 #ifdef HAS_64K_LIMIT
1060 if (newlen >= 0x10000) {
1061 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1064 #endif /* HAS_64K_LIMIT */
1067 if (SvTYPE(sv) < SVt_PV) {
1068 sv_upgrade(sv, SVt_PV);
1071 else if (SvOOK(sv)) { /* pv is offset? */
1074 if (newlen > SvLEN(sv))
1075 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1079 if (newlen > SvLEN(sv)) { /* need more room? */
1081 Renew(s,newlen,char);
1083 New(703,s,newlen,char);
1085 SvLEN_set(sv, newlen);
1095 if (SvTHINKFIRST(sv)) {
1096 if (SvREADONLY(sv) && curcop != &compiling)
1101 switch (SvTYPE(sv)) {
1103 sv_upgrade(sv, SVt_IV);
1106 sv_upgrade(sv, SVt_PVNV);
1110 sv_upgrade(sv, SVt_PVIV);
1124 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1125 op_name[op->op_type]);
1127 (void)SvIOK_only(sv); /* validate number */
1140 sv_setnv(sv, (double)u);
1148 if (SvTHINKFIRST(sv)) {
1149 if (SvREADONLY(sv) && curcop != &compiling)
1154 switch (SvTYPE(sv)) {
1157 sv_upgrade(sv, SVt_NV);
1163 sv_upgrade(sv, SVt_PVNV);
1170 (void)SvOOK_off(sv);
1183 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1184 op_name[op->op_type]);
1187 (void)SvNOK_only(sv); /* validate number */
1198 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1199 /* each *s can expand to 4 chars + "...\0",
1200 i.e. need room for 8 chars */
1202 for (s = SvPVX(sv); *s && d < limit; s++) {
1204 if (ch & 128 && !isPRINT_LC(ch)) {
1213 else if (ch == '\r') {
1217 else if (ch == '\f') {
1221 else if (ch == '\\') {
1225 else if (isPRINT_LC(ch))
1240 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1241 op_name[op->op_type]);
1243 warn("Argument \"%s\" isn't numeric", tmpbuf);
1252 if (SvGMAGICAL(sv)) {
1257 if (SvNVX(sv) < 0.0)
1258 return I_V(SvNVX(sv));
1260 return (IV) U_V(SvNVX(sv));
1262 if (SvPOKp(sv) && SvLEN(sv))
1267 if (SvTHINKFIRST(sv)) {
1271 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1272 return SvIV(tmpstr);
1273 #endif /* OVERLOAD */
1274 return (IV)SvRV(sv);
1276 if (SvREADONLY(sv)) {
1278 if (SvNVX(sv) < 0.0)
1279 return I_V(SvNVX(sv));
1281 return (IV) U_V(SvNVX(sv));
1283 if (SvPOKp(sv) && SvLEN(sv))
1290 switch (SvTYPE(sv)) {
1292 sv_upgrade(sv, SVt_IV);
1295 sv_upgrade(sv, SVt_PVIV);
1298 sv_upgrade(sv, SVt_PVNV);
1303 if (SvNVX(sv) < 0.0)
1304 SvIVX(sv) = I_V(SvNVX(sv));
1306 SvUVX(sv) = U_V(SvNVX(sv));
1308 else if (SvPOKp(sv) && SvLEN(sv)) {
1310 SvIVX(sv) = asIV(sv);
1313 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1317 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1318 (unsigned long)sv,(long)SvIVX(sv)));
1328 if (SvGMAGICAL(sv)) {
1333 return U_V(SvNVX(sv));
1334 if (SvPOKp(sv) && SvLEN(sv))
1339 if (SvTHINKFIRST(sv)) {
1343 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1344 return SvUV(tmpstr);
1345 #endif /* OVERLOAD */
1346 return (UV)SvRV(sv);
1348 if (SvREADONLY(sv)) {
1350 return U_V(SvNVX(sv));
1352 if (SvPOKp(sv) && SvLEN(sv))
1359 switch (SvTYPE(sv)) {
1361 sv_upgrade(sv, SVt_IV);
1364 sv_upgrade(sv, SVt_PVIV);
1367 sv_upgrade(sv, SVt_PVNV);
1372 SvUVX(sv) = U_V(SvNVX(sv));
1374 else if (SvPOKp(sv) && SvLEN(sv)) {
1376 SvUVX(sv) = asUV(sv);
1379 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1383 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1384 (unsigned long)sv,SvUVX(sv)));
1394 if (SvGMAGICAL(sv)) {
1398 if (SvPOKp(sv) && SvLEN(sv)) {
1399 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1401 SET_NUMERIC_STANDARD();
1402 return atof(SvPVX(sv));
1405 return (double)SvIVX(sv);
1410 if (SvTHINKFIRST(sv)) {
1414 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1415 return SvNV(tmpstr);
1416 #endif /* OVERLOAD */
1417 return (double)(unsigned long)SvRV(sv);
1419 if (SvREADONLY(sv)) {
1420 if (SvPOKp(sv) && SvLEN(sv)) {
1421 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1423 SET_NUMERIC_STANDARD();
1424 return atof(SvPVX(sv));
1427 return (double)SvIVX(sv);
1433 if (SvTYPE(sv) < SVt_NV) {
1434 if (SvTYPE(sv) == SVt_IV)
1435 sv_upgrade(sv, SVt_PVNV);
1437 sv_upgrade(sv, SVt_NV);
1438 DEBUG_c(SET_NUMERIC_STANDARD());
1439 DEBUG_c(PerlIO_printf(Perl_debug_log,
1440 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1442 else if (SvTYPE(sv) < SVt_PVNV)
1443 sv_upgrade(sv, SVt_PVNV);
1445 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1447 SvNVX(sv) = (double)SvIVX(sv);
1449 else if (SvPOKp(sv) && SvLEN(sv)) {
1450 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1452 SET_NUMERIC_STANDARD();
1453 SvNVX(sv) = atof(SvPVX(sv));
1456 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1461 DEBUG_c(SET_NUMERIC_STANDARD());
1462 DEBUG_c(PerlIO_printf(Perl_debug_log,
1463 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1471 I32 numtype = looks_like_number(sv);
1475 return atol(SvPVX(sv));
1476 if (!numtype && dowarn)
1478 SET_NUMERIC_STANDARD();
1479 d = atof(SvPVX(sv));
1490 I32 numtype = looks_like_number(sv);
1493 return atol(SvPVX(sv));
1494 if (!numtype && dowarn)
1496 SET_NUMERIC_STANDARD();
1497 return U_V(atof(SvPVX(sv)));
1501 looks_like_number(sv)
1505 register char *send;
1506 register char *sbegin;
1514 else if (SvPOKp(sv))
1515 sbegin = SvPV(sv, len);
1518 send = sbegin + len;
1523 if (*s == '+' || *s == '-')
1526 /* next must be digit or '.' */
1530 } while (isDIGIT(*s));
1533 while (isDIGIT(*s)) /* optional digits after "." */
1537 else if (*s == '.') {
1539 /* no digits before '.' means we need digits after it */
1543 } while (isDIGIT(*s));
1552 * we return 1 if the number can be converted to _integer_ with atol()
1553 * and 2 if you need (int)atof().
1557 /* we can have an optional exponent part */
1558 if (*s == 'e' || *s == 'E') {
1561 if (*s == '+' || *s == '-')
1566 } while (isDIGIT(*s));
1575 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1592 if (SvGMAGICAL(sv)) {
1599 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1603 SET_NUMERIC_STANDARD();
1604 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1612 if (SvTHINKFIRST(sv)) {
1616 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1617 return SvPV(tmpstr,*lp);
1618 #endif /* OVERLOAD */
1623 switch (SvTYPE(sv)) {
1632 case SVt_PVMG: s = "SCALAR"; break;
1633 case SVt_PVLV: s = "LVALUE"; break;
1634 case SVt_PVAV: s = "ARRAY"; break;
1635 case SVt_PVHV: s = "HASH"; break;
1636 case SVt_PVCV: s = "CODE"; break;
1637 case SVt_PVGV: s = "GLOB"; break;
1638 case SVt_PVFM: s = "FORMATLINE"; break;
1639 case SVt_PVIO: s = "IO"; break;
1640 default: s = "UNKNOWN"; break;
1643 sprintf(tokenbuf, "%s=%s(0x%lx)",
1644 HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
1646 sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
1652 if (SvREADONLY(sv)) {
1654 SET_NUMERIC_STANDARD();
1655 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1659 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1668 if (!SvUPGRADE(sv, SVt_PV))
1671 if (SvTYPE(sv) < SVt_PVNV)
1672 sv_upgrade(sv, SVt_PVNV);
1675 olderrno = errno; /* some Xenix systems wipe out errno here */
1677 if (SvNVX(sv) == 0.0)
1678 (void)strcpy(s,"0");
1682 SET_NUMERIC_STANDARD();
1683 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1686 #ifdef FIXNEGATIVEZERO
1687 if (*s == '-' && s[1] == '0' && !s[2])
1696 else if (SvIOKp(sv)) {
1697 if (SvTYPE(sv) < SVt_PVIV)
1698 sv_upgrade(sv, SVt_PVIV);
1701 olderrno = errno; /* some Xenix systems wipe out errno here */
1702 (void)sprintf(s,"%ld",(long)SvIVX(sv));
1707 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1713 *lp = s - SvPVX(sv);
1716 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1720 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1721 /* Sneaky stuff here */
1724 sv = sv_newmortal();
1725 *lp = strlen(tokenbuf);
1726 sv_setpvn(sv, tokenbuf, *lp);
1732 #ifdef FIXNEGATIVEZERO
1733 if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2])
1734 strcpy(tokenbuf,"0");
1736 (void)SvUPGRADE(sv, SVt_PV);
1737 len = *lp = strlen(tokenbuf);
1738 s = SvGROW(sv, len + 1);
1740 (void)strcpy(s, tokenbuf);
1746 /* This function is only called on magical items */
1760 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1761 return SvTRUE(tmpsv);
1763 #endif /* OVERLOAD */
1764 return SvRV(sv) != 0;
1768 if ((Xpv = (XPV*)SvANY(sv)) &&
1769 (*Xpv->xpv_pv > '0' ||
1771 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1778 return SvIVX(sv) != 0;
1781 return SvNVX(sv) != 0.0;
1788 /* Note: sv_setsv() should not be called with a source string that needs
1789 * to be reused, since it may destroy the source string if it is marked
1798 register U32 sflags;
1804 if (SvTHINKFIRST(dstr)) {
1805 if (SvREADONLY(dstr) && curcop != &compiling)
1812 stype = SvTYPE(sstr);
1813 dtype = SvTYPE(dstr);
1815 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1816 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1817 sv_setpvn(dstr, "", 0);
1818 (void)SvPOK_only(dstr);
1819 dtype = SvTYPE(dstr);
1824 #endif /* OVERLOAD */
1825 /* There's a lot of redundancy below but we're going for speed here */
1829 (void)SvOK_off(dstr);
1832 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1834 sv_upgrade(dstr, SVt_IV);
1835 else if (dtype == SVt_NV)
1836 sv_upgrade(dstr, SVt_PVNV);
1838 sv_upgrade(dstr, SVt_PVIV);
1842 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1844 sv_upgrade(dstr, SVt_NV);
1846 sv_upgrade(dstr, SVt_PVNV);
1851 sv_upgrade(dstr, SVt_RV);
1852 else if (dtype == SVt_PVGV &&
1853 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1856 if (curcop->cop_stash != GvSTASH(dstr))
1857 GvIMPORTED_on(dstr);
1866 sv_upgrade(dstr, SVt_PV);
1869 if (dtype < SVt_PVIV)
1870 sv_upgrade(dstr, SVt_PVIV);
1873 if (dtype < SVt_PVNV)
1874 sv_upgrade(dstr, SVt_PVNV);
1878 sv_upgrade(dstr, SVt_PVLV);
1886 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1887 op_name[op->op_type]);
1889 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1893 if (dtype <= SVt_PVGV) {
1895 if (dtype != SVt_PVGV) {
1896 char *name = GvNAME(sstr);
1897 STRLEN len = GvNAMELEN(sstr);
1898 sv_upgrade(dstr, SVt_PVGV);
1899 sv_magic(dstr, dstr, '*', name, len);
1900 GvSTASH(dstr) = GvSTASH(sstr);
1901 GvNAME(dstr) = savepvn(name, len);
1902 GvNAMELEN(dstr) = len;
1903 SvFAKE_on(dstr); /* can coerce to non-glob */
1905 (void)SvOK_off(dstr);
1906 GvINTRO_off(dstr); /* one-shot flag */
1908 GvGP(dstr) = gp_ref(GvGP(sstr));
1910 if (curcop->cop_stash != GvSTASH(dstr))
1911 GvIMPORTED_on(dstr);
1919 sv_upgrade(dstr, stype);
1920 if (SvGMAGICAL(sstr))
1924 sflags = SvFLAGS(sstr);
1926 if (sflags & SVf_ROK) {
1927 if (dtype >= SVt_PV) {
1928 if (dtype == SVt_PVGV) {
1929 SV *sref = SvREFCNT_inc(SvRV(sstr));
1931 int intro = GvINTRO(dstr);
1935 GvGP(dstr)->gp_refcnt--;
1936 GvINTRO_off(dstr); /* one-shot flag */
1937 Newz(602,gp, 1, GP);
1938 GvGP(dstr) = gp_ref(gp);
1939 GvSV(dstr) = NEWSV(72,0);
1940 GvLINE(dstr) = curcop->cop_line;
1941 GvEGV(dstr) = (GV*)dstr;
1944 switch (SvTYPE(sref)) {
1947 SAVESPTR(GvAV(dstr));
1949 dref = (SV*)GvAV(dstr);
1950 GvAV(dstr) = (AV*)sref;
1951 if (curcop->cop_stash != GvSTASH(dstr))
1952 GvIMPORTED_AV_on(dstr);
1956 SAVESPTR(GvHV(dstr));
1958 dref = (SV*)GvHV(dstr);
1959 GvHV(dstr) = (HV*)sref;
1960 if (curcop->cop_stash != GvSTASH(dstr))
1961 GvIMPORTED_HV_on(dstr);
1965 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
1966 SvREFCNT_dec(GvCV(dstr));
1967 GvCV(dstr) = Nullcv;
1970 SAVESPTR(GvCV(dstr));
1973 CV* cv = GvCV(dstr);
1976 if (dowarn && sref != dref &&
1977 !GvCVGEN((GV*)dstr) &&
1978 (CvROOT(cv) || CvXSUB(cv)) )
1979 warn("Subroutine %s redefined",
1980 GvENAME((GV*)dstr));
1983 if (GvCV(dstr) != (CV*)sref) {
1984 GvCV(dstr) = (CV*)sref;
1985 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
1986 GvASSUMECV_on(dstr);
1989 if (curcop->cop_stash != GvSTASH(dstr))
1990 GvIMPORTED_CV_on(dstr);
1994 SAVESPTR(GvIOp(dstr));
1996 dref = (SV*)GvIOp(dstr);
1997 GvIOp(dstr) = (IO*)sref;
2001 SAVESPTR(GvSV(dstr));
2003 dref = (SV*)GvSV(dstr);
2005 if (curcop->cop_stash != GvSTASH(dstr))
2006 GvIMPORTED_SV_on(dstr);
2017 (void)SvOOK_off(dstr); /* backoff */
2018 Safefree(SvPVX(dstr));
2019 SvLEN(dstr)=SvCUR(dstr)=0;
2022 (void)SvOK_off(dstr);
2023 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2025 if (sflags & SVp_NOK) {
2027 SvNVX(dstr) = SvNVX(sstr);
2029 if (sflags & SVp_IOK) {
2030 (void)SvIOK_on(dstr);
2031 SvIVX(dstr) = SvIVX(sstr);
2034 if (SvAMAGIC(sstr)) {
2037 #endif /* OVERLOAD */
2039 else if (sflags & SVp_POK) {
2042 * Check to see if we can just swipe the string. If so, it's a
2043 * possible small lose on short strings, but a big win on long ones.
2044 * It might even be a win on short strings if SvPVX(dstr)
2045 * has to be allocated and SvPVX(sstr) has to be freed.
2048 if (SvTEMP(sstr) && /* slated for free anyway? */
2049 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2051 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2053 SvFLAGS(dstr) &= ~SVf_OOK;
2054 Safefree(SvPVX(dstr) - SvIVX(dstr));
2057 Safefree(SvPVX(dstr));
2059 (void)SvPOK_only(dstr);
2060 SvPV_set(dstr, SvPVX(sstr));
2061 SvLEN_set(dstr, SvLEN(sstr));
2062 SvCUR_set(dstr, SvCUR(sstr));
2064 (void)SvOK_off(sstr);
2065 SvPV_set(sstr, Nullch);
2070 else { /* have to copy actual string */
2071 STRLEN len = SvCUR(sstr);
2073 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2074 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2075 SvCUR_set(dstr, len);
2076 *SvEND(dstr) = '\0';
2077 (void)SvPOK_only(dstr);
2080 if (sflags & SVp_NOK) {
2082 SvNVX(dstr) = SvNVX(sstr);
2084 if (sflags & SVp_IOK) {
2085 (void)SvIOK_on(dstr);
2086 SvIVX(dstr) = SvIVX(sstr);
2089 else if (sflags & SVp_NOK) {
2090 SvNVX(dstr) = SvNVX(sstr);
2091 (void)SvNOK_only(dstr);
2093 (void)SvIOK_on(dstr);
2094 SvIVX(dstr) = SvIVX(sstr);
2097 else if (sflags & SVp_IOK) {
2098 (void)SvIOK_only(dstr);
2099 SvIVX(dstr) = SvIVX(sstr);
2102 (void)SvOK_off(dstr);
2108 sv_setpvn(sv,ptr,len)
2110 register const char *ptr;
2111 register STRLEN len;
2113 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2114 elicit a warning, but it won't hurt. */
2115 if (SvTHINKFIRST(sv)) {
2116 if (SvREADONLY(sv) && curcop != &compiling)
2125 if (SvTYPE(sv) >= SVt_PV) {
2126 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2129 else if (!sv_upgrade(sv, SVt_PV))
2131 SvGROW(sv, len + 1);
2132 Move(ptr,SvPVX(sv),len,char);
2135 (void)SvPOK_only(sv); /* validate pointer */
2142 register const char *ptr;
2144 register STRLEN len;
2146 if (SvTHINKFIRST(sv)) {
2147 if (SvREADONLY(sv) && curcop != &compiling)
2157 if (SvTYPE(sv) >= SVt_PV) {
2158 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2161 else if (!sv_upgrade(sv, SVt_PV))
2163 SvGROW(sv, len + 1);
2164 Move(ptr,SvPVX(sv),len+1,char);
2166 (void)SvPOK_only(sv); /* validate pointer */
2171 sv_usepvn(sv,ptr,len)
2174 register STRLEN len;
2176 if (SvTHINKFIRST(sv)) {
2177 if (SvREADONLY(sv) && curcop != &compiling)
2182 if (!SvUPGRADE(sv, SVt_PV))
2189 Safefree(SvPVX(sv));
2190 Renew(ptr, len+1, char);
2193 SvLEN_set(sv, len+1);
2195 (void)SvPOK_only(sv); /* validate pointer */
2200 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2204 register STRLEN delta;
2206 if (!ptr || !SvPOKp(sv))
2208 if (SvTHINKFIRST(sv)) {
2209 if (SvREADONLY(sv) && curcop != &compiling)
2214 if (SvTYPE(sv) < SVt_PVIV)
2215 sv_upgrade(sv,SVt_PVIV);
2219 SvFLAGS(sv) |= SVf_OOK;
2221 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2222 delta = ptr - SvPVX(sv);
2230 sv_catpvn(sv,ptr,len)
2233 register STRLEN len;
2238 junk = SvPV_force(sv, tlen);
2239 SvGROW(sv, tlen + len + 1);
2242 Move(ptr,SvPVX(sv)+tlen,len,char);
2245 (void)SvPOK_only(sv); /* validate pointer */
2258 if (s = SvPV(sstr, len))
2259 sv_catpvn(dstr,s,len);
2267 register STRLEN len;
2273 junk = SvPV_force(sv, tlen);
2275 SvGROW(sv, tlen + len + 1);
2278 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2280 (void)SvPOK_only(sv); /* validate pointer */
2300 sv_upgrade(sv, SVt_PV);
2301 SvGROW(sv, len + 1);
2306 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2309 sv_magic(sv, obj, how, name, namlen)
2318 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2320 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2321 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2328 if (!SvUPGRADE(sv, SVt_PVMG))
2331 Newz(702,mg, 1, MAGIC);
2332 mg->mg_moremagic = SvMAGIC(sv);
2335 if (!obj || obj == sv || how == '#')
2338 mg->mg_obj = SvREFCNT_inc(obj);
2339 mg->mg_flags |= MGf_REFCOUNTED;
2342 mg->mg_len = namlen;
2345 mg->mg_ptr = savepvn(name, namlen);
2346 else if (namlen == HEf_SVKEY)
2347 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2351 mg->mg_virtual = &vtbl_sv;
2355 mg->mg_virtual = &vtbl_amagic;
2358 mg->mg_virtual = &vtbl_amagicelem;
2363 #endif /* OVERLOAD */
2365 mg->mg_virtual = &vtbl_bm;
2368 mg->mg_virtual = &vtbl_env;
2371 mg->mg_virtual = &vtbl_fm;
2374 mg->mg_virtual = &vtbl_envelem;
2377 mg->mg_virtual = &vtbl_mglob;
2380 mg->mg_virtual = &vtbl_isa;
2383 mg->mg_virtual = &vtbl_isaelem;
2386 mg->mg_virtual = &vtbl_nkeys;
2393 mg->mg_virtual = &vtbl_dbline;
2395 #ifdef USE_LOCALE_COLLATE
2397 mg->mg_virtual = &vtbl_collxfrm;
2399 #endif /* USE_LOCALE_COLLATE */
2401 mg->mg_virtual = &vtbl_pack;
2405 mg->mg_virtual = &vtbl_packelem;
2408 mg->mg_virtual = &vtbl_sig;
2411 mg->mg_virtual = &vtbl_sigelem;
2414 mg->mg_virtual = &vtbl_taint;
2418 mg->mg_virtual = &vtbl_uvar;
2421 mg->mg_virtual = &vtbl_vec;
2424 mg->mg_virtual = &vtbl_substr;
2427 mg->mg_virtual = &vtbl_itervar;
2430 mg->mg_virtual = &vtbl_glob;
2433 mg->mg_virtual = &vtbl_arylen;
2436 mg->mg_virtual = &vtbl_pos;
2438 case '~': /* Reserved for use by extensions not perl internals. */
2439 /* Useful for attaching extension internal data to perl vars. */
2440 /* Note that multiple extensions may clash if magical scalars */
2441 /* etc holding private data from one are passed to another. */
2445 croak("Don't know how to handle magic of type '%c'", how);
2449 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2453 sv_unmagic(sv, type)
2459 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2462 for (mg = *mgp; mg; mg = *mgp) {
2463 if (mg->mg_type == type) {
2464 MGVTBL* vtbl = mg->mg_virtual;
2465 *mgp = mg->mg_moremagic;
2466 if (vtbl && vtbl->svt_free)
2467 (*vtbl->svt_free)(sv, mg);
2468 if (mg->mg_ptr && mg->mg_type != 'g')
2469 if (mg->mg_len >= 0)
2470 Safefree(mg->mg_ptr);
2471 else if (mg->mg_len == HEf_SVKEY)
2472 SvREFCNT_dec((SV*)mg->mg_ptr);
2473 if (mg->mg_flags & MGf_REFCOUNTED)
2474 SvREFCNT_dec(mg->mg_obj);
2478 mgp = &mg->mg_moremagic;
2482 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2489 sv_insert(bigstr,offset,len,little,littlelen)
2498 register char *midend;
2499 register char *bigend;
2503 croak("Can't modify non-existent substring");
2504 SvPV_force(bigstr, na);
2506 i = littlelen - len;
2507 if (i > 0) { /* string might grow */
2508 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2509 mid = big + offset + len;
2510 midend = bigend = big + SvCUR(bigstr);
2513 while (midend > mid) /* shove everything down */
2514 *--bigend = *--midend;
2515 Move(little,big+offset,littlelen,char);
2521 Move(little,SvPVX(bigstr)+offset,len,char);
2526 big = SvPVX(bigstr);
2529 bigend = big + SvCUR(bigstr);
2531 if (midend > bigend)
2532 croak("panic: sv_insert");
2534 if (mid - big > bigend - midend) { /* faster to shorten from end */
2536 Move(little, mid, littlelen,char);
2539 i = bigend - midend;
2541 Move(midend, mid, i,char);
2545 SvCUR_set(bigstr, mid - big);
2548 else if (i = mid - big) { /* faster from front */
2549 midend -= littlelen;
2551 sv_chop(bigstr,midend-i);
2556 Move(little, mid, littlelen,char);
2558 else if (littlelen) {
2559 midend -= littlelen;
2560 sv_chop(bigstr,midend);
2561 Move(little,midend,littlelen,char);
2564 sv_chop(bigstr,midend);
2569 /* make sv point to what nstr did */
2576 U32 refcnt = SvREFCNT(sv);
2577 if (SvTHINKFIRST(sv)) {
2578 if (SvREADONLY(sv) && curcop != &compiling)
2583 if (SvREFCNT(nsv) != 1)
2584 warn("Reference miscount in sv_replace()");
2585 if (SvMAGICAL(sv)) {
2589 sv_upgrade(nsv, SVt_PVMG);
2590 SvMAGIC(nsv) = SvMAGIC(sv);
2591 SvFLAGS(nsv) |= SvMAGICAL(sv);
2597 assert(!SvREFCNT(sv));
2598 StructCopy(nsv,sv,SV);
2599 SvREFCNT(sv) = refcnt;
2600 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2609 assert(SvREFCNT(sv) == 0);
2612 if (defstash) { /* Still have a symbol table? */
2617 SAVEFREESV(SvSTASH(sv));
2619 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2624 sv_upgrade(&ref, SVt_RV);
2625 SvRV(&ref) = SvREFCNT_inc(sv);
2632 perl_call_sv((SV*)GvCV(destructor),
2633 G_DISCARD|G_EVAL|G_KEEPERR);
2634 del_XRV(SvANY(&ref));
2641 SvREFCNT_dec(SvSTASH(sv));
2643 SvOBJECT_off(sv); /* Curse the object. */
2644 if (SvTYPE(sv) != SVt_PVIO)
2645 --sv_objcount; /* XXX Might want something more general */
2650 && (ret = perl_get_sv("DB::ret", FALSE))
2651 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2652 /* Debugger is prone to dangling references. */
2659 croak("DESTROY created new reference to dead object");
2660 /* DESTROY gave object new lease on life */
2665 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2667 switch (SvTYPE(sv)) {
2669 if (IoIFP(sv) != PerlIO_stdin() &&
2670 IoIFP(sv) != PerlIO_stdout() &&
2671 IoIFP(sv) != PerlIO_stderr())
2673 Safefree(IoTOP_NAME(sv));
2674 Safefree(IoFMT_NAME(sv));
2675 Safefree(IoBOTTOM_NAME(sv));
2691 Safefree(GvNAME(sv));
2698 (void)SvOOK_off(sv);
2703 SvREFCNT_dec(SvRV(sv));
2704 else if (SvPVX(sv) && SvLEN(sv))
2705 Safefree(SvPVX(sv));
2715 switch (SvTYPE(sv)) {
2731 del_XPVIV(SvANY(sv));
2734 del_XPVNV(SvANY(sv));
2737 del_XPVMG(SvANY(sv));
2740 del_XPVLV(SvANY(sv));
2743 del_XPVAV(SvANY(sv));
2746 del_XPVHV(SvANY(sv));
2749 del_XPVCV(SvANY(sv));
2752 del_XPVGV(SvANY(sv));
2755 del_XPVBM(SvANY(sv));
2758 del_XPVFM(SvANY(sv));
2761 del_XPVIO(SvANY(sv));
2764 SvFLAGS(sv) &= SVf_BREAK;
2765 SvFLAGS(sv) |= SVTYPEMASK;
2783 if (SvREADONLY(sv)) {
2784 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2787 if (SvREFCNT(sv) == 0) {
2788 if (SvFLAGS(sv) & SVf_BREAK)
2790 if (in_clean_all) /* All is fair */
2792 warn("Attempt to free unreferenced scalar");
2795 if (--SvREFCNT(sv) > 0)
2799 warn("Attempt to free temp prematurely");
2821 junk = SvPV(sv, len);
2840 pv1 = SvPV(str1, cur1);
2845 pv2 = SvPV(str2, cur2);
2850 return memEQ(pv1, pv2, cur1);
2859 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2861 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2865 return cur2 ? -1 : 0;
2870 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2873 return retval < 0 ? -1 : 1;
2878 return cur1 < cur2 ? -1 : 1;
2882 sv_cmp_locale(sv1, sv2)
2886 #ifdef USE_LOCALE_COLLATE
2892 if (collation_standard)
2896 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2898 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2900 if (!pv1 || !len1) {
2911 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2914 return retval < 0 ? -1 : 1;
2917 * When the result of collation is equality, that doesn't mean
2918 * that there are no differences -- some locales exclude some
2919 * characters from consideration. So to avoid false equalities,
2920 * we use the raw string as a tiebreaker.
2926 #endif /* USE_LOCALE_COLLATE */
2928 return sv_cmp(sv1, sv2);
2931 #ifdef USE_LOCALE_COLLATE
2933 * Any scalar variable may carry an 'o' magic that contains the
2934 * scalar data of the variable transformed to such a format that
2935 * a normal memory comparison can be used to compare the data
2936 * according to the locale settings.
2939 sv_collxfrm(sv, nxp)
2945 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
2946 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
2951 Safefree(mg->mg_ptr);
2953 if ((xf = mem_collxfrm(s, len, &xlen))) {
2954 if (SvREADONLY(sv)) {
2960 sv_magic(sv, 0, 'o', 0, 0);
2961 mg = mg_find(sv, 'o');
2974 if (mg && mg->mg_ptr) {
2976 return mg->mg_ptr + sizeof(collation_ix);
2984 #endif /* USE_LOCALE_COLLATE */
2987 sv_gets(sv,fp,append)
2989 register PerlIO *fp;
2994 register STDCHAR rslast;
2995 register STDCHAR *bp;
2999 if (SvTHINKFIRST(sv)) {
3000 if (SvREADONLY(sv) && curcop != &compiling)
3005 if (!SvUPGRADE(sv, SVt_PV))
3013 else if (RsPARA(rs)) {
3018 rsptr = SvPV(rs, rslen);
3019 rslast = rslen ? rsptr[rslen - 1] : '\0';
3021 if (RsPARA(rs)) { /* have to do this both before and after */
3022 do { /* to make sure file boundaries work right */
3025 i = PerlIO_getc(fp);
3029 PerlIO_ungetc(fp,i);
3035 /* See if we know enough about I/O mechanism to cheat it ! */
3037 /* This used to be #ifdef test - it is made run-time test for ease
3038 of abstracting out stdio interface. One call should be cheap
3039 enough here - and may even be a macro allowing compile
3043 if (PerlIO_fast_gets(fp)) {
3046 * We're going to steal some values from the stdio struct
3047 * and put EVERYTHING in the innermost loop into registers.
3049 register STDCHAR *ptr;
3053 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3054 /* An ungetc()d char is handled separately from the regular
3055 * buffer, so we getc() it back out and stuff it in the buffer.
3057 i = PerlIO_getc(fp);
3058 if (i == EOF) return 0;
3059 *(--((*fp)->_ptr)) = (unsigned char) i;
3063 /* Here is some breathtakingly efficient cheating */
3065 cnt = PerlIO_get_cnt(fp); /* get count into register */
3066 (void)SvPOK_only(sv); /* validate pointer */
3067 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3068 if (cnt > 80 && SvLEN(sv) > append) {
3069 shortbuffered = cnt - SvLEN(sv) + append + 1;
3070 cnt -= shortbuffered;
3074 /* remember that cnt can be negative */
3075 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3080 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3081 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3082 DEBUG_P(PerlIO_printf(Perl_debug_log,
3083 "Screamer: entering, ptr=%d, cnt=%d\n",ptr,cnt));
3084 DEBUG_P(PerlIO_printf(Perl_debug_log,
3085 "Screamer: entering: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
3086 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp),
3087 PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0));
3092 while (cnt > 0) { /* this | eat */
3094 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3095 goto thats_all_folks; /* screams | sed :-) */
3099 Copy(ptr, bp, cnt, char); /* this | eat */
3100 bp += cnt; /* screams | dust */
3101 ptr += cnt; /* louder | sed :-) */
3106 if (shortbuffered) { /* oh well, must extend */
3107 cnt = shortbuffered;
3109 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3111 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3112 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3116 DEBUG_P(PerlIO_printf(Perl_debug_log,
3117 "Screamer: going to getc, ptr=%d, cnt=%d\n",ptr,cnt));
3118 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3119 DEBUG_P(PerlIO_printf(Perl_debug_log,
3120 "Screamer: pre: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
3121 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp),
3122 PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0));
3123 /* This used to call 'filbuf' in stdio form, but as that behaves like
3124 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3125 another abstraction. */
3126 i = PerlIO_getc(fp); /* get more characters */
3127 DEBUG_P(PerlIO_printf(Perl_debug_log,
3128 "Screamer: post: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
3129 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp),
3130 PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0));
3131 cnt = PerlIO_get_cnt(fp);
3132 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3133 DEBUG_P(PerlIO_printf(Perl_debug_log,
3134 "Screamer: after getc, ptr=%d, cnt=%d\n",ptr,cnt));
3136 if (i == EOF) /* all done for ever? */
3137 goto thats_really_all_folks;
3139 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3141 SvGROW(sv, bpx + cnt + 2);
3142 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3144 *bp++ = i; /* store character from PerlIO_getc */
3146 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3147 goto thats_all_folks;
3151 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3152 memNE((char*)bp - rslen, rsptr, rslen))
3153 goto screamer; /* go back to the fray */
3154 thats_really_all_folks:
3156 cnt += shortbuffered;
3157 DEBUG_P(PerlIO_printf(Perl_debug_log,
3158 "Screamer: quitting, ptr=%d, cnt=%d\n",ptr,cnt));
3159 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3160 DEBUG_P(PerlIO_printf(Perl_debug_log,
3161 "Screamer: end: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
3162 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp),
3163 PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0));
3165 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3166 DEBUG_P(PerlIO_printf(Perl_debug_log,
3167 "Screamer: done, len=%d, string=|%.*s|\n",
3168 SvCUR(sv),SvCUR(sv),SvPVX(sv)));
3172 /*The big, slow, and stupid way */
3177 register STDCHAR *bpe = buf + sizeof(buf);
3179 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3180 ; /* keep reading */
3184 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3185 /* Accomodate broken VAXC compiler, which applies U8 cast to
3186 * both args of ?: operator, causing EOF to change into 255
3188 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3192 sv_catpvn(sv, (char *) buf, cnt);
3194 sv_setpvn(sv, (char *) buf, cnt);
3196 if (i != EOF && /* joy */
3198 SvCUR(sv) < rslen ||
3199 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3206 if (RsPARA(rs)) { /* have to do this both before and after */
3207 while (i != EOF) { /* to make sure file boundaries work right */
3208 i = PerlIO_getc(fp);
3210 PerlIO_ungetc(fp,i);
3216 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3229 if (SvTHINKFIRST(sv)) {
3230 if (SvREADONLY(sv) && curcop != &compiling)
3234 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3235 #endif /* OVERLOAD */
3241 flags = SvFLAGS(sv);
3242 if (flags & SVp_NOK) {
3243 (void)SvNOK_only(sv);
3247 if (flags & SVp_IOK) {
3248 if (SvIVX(sv) == IV_MAX)
3249 sv_setnv(sv, (double)IV_MAX + 1.0);
3251 (void)SvIOK_only(sv);
3256 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3257 if ((flags & SVTYPEMASK) < SVt_PVNV)
3258 sv_upgrade(sv, SVt_NV);
3260 (void)SvNOK_only(sv);
3264 while (isALPHA(*d)) d++;
3265 while (isDIGIT(*d)) d++;
3267 SET_NUMERIC_STANDARD();
3268 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3272 while (d >= SvPVX(sv)) {
3282 *(d--) -= 'z' - 'a' + 1;
3285 /* oh,oh, the number grew */
3286 SvGROW(sv, SvCUR(sv) + 2);
3288 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3304 if (SvTHINKFIRST(sv)) {
3305 if (SvREADONLY(sv) && curcop != &compiling)
3309 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3310 #endif /* OVERLOAD */
3316 flags = SvFLAGS(sv);
3317 if (flags & SVp_NOK) {
3319 (void)SvNOK_only(sv);
3322 if (flags & SVp_IOK) {
3323 if (SvIVX(sv) == IV_MIN)
3324 sv_setnv(sv, (double)IV_MIN - 1.0);
3326 (void)SvIOK_only(sv);
3331 if (!(flags & SVp_POK)) {
3332 if ((flags & SVTYPEMASK) < SVt_PVNV)
3333 sv_upgrade(sv, SVt_NV);
3335 (void)SvNOK_only(sv);
3338 SET_NUMERIC_STANDARD();
3339 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3342 /* Make a string that will exist for the duration of the expression
3343 * evaluation. Actually, it may have to last longer than that, but
3344 * hopefully we won't free it until it has been assigned to a
3345 * permanent location. */
3350 tmps_max += (tmps_max < 512) ? 128 : 512;
3351 Renew(tmps_stack, tmps_max, SV*);
3355 sv_mortalcopy(oldstr)
3364 sv_setsv(sv,oldstr);
3365 if (++tmps_ix >= tmps_max)
3367 tmps_stack[tmps_ix] = sv;
3380 SvFLAGS(sv) = SVs_TEMP;
3381 if (++tmps_ix >= tmps_max)
3383 tmps_stack[tmps_ix] = sv;
3387 /* same thing without the copying */
3395 if (SvREADONLY(sv) && curcop != &compiling)
3397 if (++tmps_ix >= tmps_max)
3399 tmps_stack[tmps_ix] = sv;
3417 sv_setpvn(sv,s,len);
3459 sv_upgrade(sv, SVt_RV);
3461 SvRV(sv) = SvREFCNT_inc(ref);
3477 #endif /* CRIPPLED_CC */
3479 /* make an exact duplicate of old */
3489 if (SvTYPE(old) == SVTYPEMASK) {
3490 warn("semi-panic: attempt to dup freed string");
3520 if (!*s) { /* reset ?? searches */
3521 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3522 pm->op_pmflags &= ~PMf_USED;
3527 /* reset variables */
3529 if (!HvARRAY(stash))
3532 Zero(todo, 256, char);
3539 for ( ; i <= max; i++) {
3542 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3543 for (entry = HvARRAY(stash)[i];
3545 entry = HeNEXT(entry)) {
3546 if (!todo[(U8)*HeKEY(entry)])
3548 gv = (GV*)HeVAL(entry);
3551 if (SvTYPE(sv) >= SVt_PV) {
3553 if (SvPVX(sv) != Nullch)
3560 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3562 #ifndef VMS /* VMS has no environ array */
3564 environ[0] = Nullch;
3573 sv_2cv(sv, st, gvp, lref)
3583 return *gvp = Nullgv, Nullcv;
3584 switch (SvTYPE(sv)) {
3604 if (SvTYPE(cv) != SVt_PVCV)
3605 croak("Not a subroutine reference");
3613 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3619 if (lref && !GvCVu(gv)) {
3622 tmpsv = NEWSV(704,0);
3623 gv_efullname3(tmpsv, gv, Nullch);
3624 newSUB(start_subparse(FALSE, 0),
3625 newSVOP(OP_CONST, 0, tmpsv),
3630 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3647 if ((Xpv = (XPV*)SvANY(sv)) &&
3648 (*Xpv->xpv_pv > '0' ||
3650 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3657 return SvIVX(sv) != 0;
3660 return SvNVX(sv) != 0.0;
3662 return sv_2bool(sv);
3666 #endif /* !SvTRUE */
3711 return sv_2pv(sv, lp);
3716 sv_pvn_force(sv, lp)
3722 if (SvREADONLY(sv) && curcop != &compiling)
3729 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3730 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3736 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3737 op_name[op->op_type]);
3741 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3746 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3747 SvGROW(sv, len + 1);
3748 Move(s,SvPVX(sv),len,char);
3753 SvPOK_on(sv); /* validate pointer */
3755 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3756 (unsigned long)sv,SvPVX(sv)));
3767 if (ob && SvOBJECT(sv))
3768 return HvNAME(SvSTASH(sv));
3770 switch (SvTYPE(sv)) {
3784 case SVt_PVLV: return "LVALUE";
3785 case SVt_PVAV: return "ARRAY";
3786 case SVt_PVHV: return "HASH";
3787 case SVt_PVCV: return "CODE";
3788 case SVt_PVGV: return "GLOB";
3789 case SVt_PVFM: return "FORMLINE";
3790 default: return "UNKNOWN";
3818 return strEQ(HvNAME(SvSTASH(sv)), name);
3822 newSVrv(rv, classname)
3832 sv_upgrade(rv, SVt_RV);
3833 SvRV(rv) = SvREFCNT_inc(sv);
3837 HV* stash = gv_stashpv(classname, TRUE);
3838 (void)sv_bless(rv, stash);
3844 sv_setref_pv(rv, classname, pv)
3850 sv_setsv(rv, &sv_undef);
3852 sv_setiv(newSVrv(rv,classname), (IV)pv);
3857 sv_setref_iv(rv, classname, iv)
3862 sv_setiv(newSVrv(rv,classname), iv);
3867 sv_setref_nv(rv, classname, nv)
3872 sv_setnv(newSVrv(rv,classname), nv);
3877 sv_setref_pvn(rv, classname, pv, n)
3883 sv_setpvn(newSVrv(rv,classname), pv, n);
3894 croak("Can't bless non-reference value");
3896 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
3897 if (SvREADONLY(ref))
3899 if (SvOBJECT(ref)) {
3900 if (SvTYPE(ref) != SVt_PVIO)
3902 SvREFCNT_dec(SvSTASH(ref));
3906 if (SvTYPE(ref) != SVt_PVIO)
3908 (void)SvUPGRADE(ref, SVt_PVMG);
3909 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
3916 #endif /* OVERLOAD */
3925 assert(SvTYPE(sv) == SVt_PVGV);
3929 sv_unmagic(sv, '*');
3930 Safefree(GvNAME(sv));
3932 SvFLAGS(sv) &= ~SVTYPEMASK;
3933 SvFLAGS(sv) |= SVt_PVMG;
3944 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
3947 sv_2mortal(rv); /* Schedule for freeing later */
3957 switch (SvTYPE(sv)) {
3965 croak("Bad filehandle: %s", GvNAME(gv));
3969 croak(no_usym, "filehandle");
3971 return sv_2io(SvRV(sv));
3972 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3978 croak("Bad filehandle: %s", SvPV(sv,na));
3988 sv_magic((sv), Nullsv, 't', Nullch, 0);
3995 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
3996 MAGIC *mg = mg_find(sv, 't');
4006 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4007 MAGIC *mg = mg_find(sv, 't');
4008 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4025 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4029 flags = SvFLAGS(sv);
4032 sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4033 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4035 if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,");
4036 if (flags & SVs_PADTMP) strcat(d, "PADTMP,");
4037 if (flags & SVs_PADMY) strcat(d, "PADMY,");
4038 if (flags & SVs_TEMP) strcat(d, "TEMP,");
4039 if (flags & SVs_OBJECT) strcat(d, "OBJECT,");
4040 if (flags & SVs_GMG) strcat(d, "GMG,");
4041 if (flags & SVs_SMG) strcat(d, "SMG,");
4042 if (flags & SVs_RMG) strcat(d, "RMG,");
4045 if (flags & SVf_IOK) strcat(d, "IOK,");
4046 if (flags & SVf_NOK) strcat(d, "NOK,");
4047 if (flags & SVf_POK) strcat(d, "POK,");
4048 if (flags & SVf_ROK) strcat(d, "ROK,");
4049 if (flags & SVf_OOK) strcat(d, "OOK,");
4050 if (flags & SVf_FAKE) strcat(d, "FAKE,");
4051 if (flags & SVf_READONLY) strcat(d, "READONLY,");
4055 if (flags & SVf_AMAGIC) strcat(d, "OVERLOAD,");
4056 #endif /* OVERLOAD */
4057 if (flags & SVp_IOK) strcat(d, "pIOK,");
4058 if (flags & SVp_NOK) strcat(d, "pNOK,");
4059 if (flags & SVp_POK) strcat(d, "pPOK,");
4060 if (flags & SVp_SCREAM) strcat(d, "SCREAM,");
4065 if (CvANON(sv)) strcat(d, "ANON,");
4066 if (CvUNIQUE(sv)) strcat(d, "UNIQUE,");
4067 if (CvCLONE(sv)) strcat(d, "CLONE,");
4068 if (CvCLONED(sv)) strcat(d, "CLONED,");
4069 if (CvNODEBUG(sv)) strcat(d, "NODEBUG,");
4072 if (HvSHAREKEYS(sv)) strcat(d, "SHAREKEYS,");
4073 if (HvLAZYDEL(sv)) strcat(d, "LAZYDEL,");
4076 if (GvINTRO(sv)) strcat(d, "INTRO,");
4077 if (GvMULTI(sv)) strcat(d, "MULTI,");
4078 if (GvASSUMECV(sv)) strcat(d, "ASSUMECV,");
4079 if (GvIMPORTED(sv)) {
4080 strcat(d, "IMPORT");
4081 if (GvIMPORTED(sv) == GVf_IMPORTED)
4085 if (GvIMPORTED_SV(sv)) strcat(d, " SV");
4086 if (GvIMPORTED_AV(sv)) strcat(d, " AV");
4087 if (GvIMPORTED_HV(sv)) strcat(d, " HV");
4088 if (GvIMPORTED_CV(sv)) strcat(d, " CV");
4100 PerlIO_printf(Perl_debug_log, "SV = ");
4103 PerlIO_printf(Perl_debug_log, "NULL%s\n", tmpbuf);
4106 PerlIO_printf(Perl_debug_log, "IV%s\n", tmpbuf);
4109 PerlIO_printf(Perl_debug_log, "NV%s\n", tmpbuf);
4112 PerlIO_printf(Perl_debug_log, "RV%s\n", tmpbuf);
4115 PerlIO_printf(Perl_debug_log, "PV%s\n", tmpbuf);
4118 PerlIO_printf(Perl_debug_log, "PVIV%s\n", tmpbuf);
4121 PerlIO_printf(Perl_debug_log, "PVNV%s\n", tmpbuf);
4124 PerlIO_printf(Perl_debug_log, "PVBM%s\n", tmpbuf);
4127 PerlIO_printf(Perl_debug_log, "PVMG%s\n", tmpbuf);
4130 PerlIO_printf(Perl_debug_log, "PVLV%s\n", tmpbuf);
4133 PerlIO_printf(Perl_debug_log, "PVAV%s\n", tmpbuf);
4136 PerlIO_printf(Perl_debug_log, "PVHV%s\n", tmpbuf);
4139 PerlIO_printf(Perl_debug_log, "PVCV%s\n", tmpbuf);
4142 PerlIO_printf(Perl_debug_log, "PVGV%s\n", tmpbuf);
4145 PerlIO_printf(Perl_debug_log, "PVFM%s\n", tmpbuf);
4148 PerlIO_printf(Perl_debug_log, "PVIO%s\n", tmpbuf);
4151 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", tmpbuf);
4154 if (type >= SVt_PVIV || type == SVt_IV)
4155 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4156 if (type >= SVt_PVNV || type == SVt_NV) {
4157 SET_NUMERIC_STANDARD();
4158 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4161 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4167 if (type <= SVt_PVLV) {
4169 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4170 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4172 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4174 if (type >= SVt_PVMG) {
4176 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4179 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4183 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4184 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4185 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4186 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4187 sv_dump(LvTARG(sv));
4190 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4191 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4192 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4193 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4194 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4195 flags = AvFLAGS(sv);
4198 if (flags & AVf_REAL) strcat(d, "REAL,");
4199 if (flags & AVf_REIFY) strcat(d, "REIFY,");
4200 if (flags & AVf_REUSED) strcat(d, "REUSED,");
4202 d[strlen(d)-1] = '\0';
4203 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n", d);
4206 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4207 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4208 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4209 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4210 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4211 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4213 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4215 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4219 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4222 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4223 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4224 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4225 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4226 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4227 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4228 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4229 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4231 PerlIO_printf(Perl_debug_log, "\n");
4233 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4234 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4235 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4236 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4237 if (type == SVt_PVFM)
4238 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4241 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4242 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4243 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4244 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4245 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4246 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4247 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4248 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4249 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4250 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4251 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4252 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4253 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4254 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4255 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4256 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4259 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4260 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4261 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4262 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4263 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4264 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4265 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4266 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4267 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4268 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4269 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4270 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4271 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4272 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4273 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4274 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));