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 SV *more_sv _((void));
44 static XPVIV *more_xiv _((void));
45 static XPVNV *more_xnv _((void));
46 static XPV *more_xpv _((void));
47 static XRV *more_xrv _((void));
48 static XPVIV *new_xiv _((void));
49 static XPVNV *new_xnv _((void));
50 static XPV *new_xpv _((void));
51 static XRV *new_xrv _((void));
52 static void del_xiv _((XPVIV* p));
53 static void del_xnv _((XPVNV* p));
54 static void del_xpv _((XPV* p));
55 static void del_xrv _((XRV* p));
56 static void sv_mortalgrow _((void));
57 static void sv_unglob _((SV* sv));
59 typedef void (*SVFUNC) _((SV*));
65 (p) = (SV*)safemalloc(sizeof(SV)); \
78 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
80 #define REG_REPLACE(sv,a,b) \
82 void* p = sv->sv_any; \
83 I32 h = REGHASH(sv, regsize); \
85 while (registry[i] != (a)) { \
89 die("SV registry bug"); \
94 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
95 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
101 if (sv_count >= (regsize >> 1))
103 SV **oldreg = registry;
104 I32 oldsize = regsize;
106 regsize = regsize ? ((regsize << 2) + 1) : 2037;
107 registry = (SV**)safemalloc(regsize * sizeof(SV*));
108 memzero(registry, regsize * sizeof(SV*));
113 for (i = 0; i < oldsize; ++i) {
114 SV* oldsv = oldreg[i];
140 for (i = 0; i < regsize; ++i) {
141 SV* sv = registry[i];
148 sv_add_arena(ptr, size, flags)
153 if (!(flags & SVf_FAKE))
160 * "A time to plant, and a time to uproot what was planted..."
163 #define plant_SV(p) \
165 SvANY(p) = (void *)sv_root; \
166 SvFLAGS(p) = SVTYPEMASK; \
171 #define uproot_SV(p) \
174 sv_root = (SV*)SvANY(p); \
201 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
203 svend = &sva[SvREFCNT(sva)];
204 if (p >= sv && p < svend)
208 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
215 #else /* ! DEBUGGING */
217 #define del_SV(p) plant_SV(p)
219 #endif /* DEBUGGING */
222 sv_add_arena(ptr, size, flags)
230 Zero(sva, size, char);
232 /* The first SV in an arena isn't an SV. */
233 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
234 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
235 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
240 svend = &sva[SvREFCNT(sva) - 1];
243 SvANY(sv) = (void *)(SV*)(sv + 1);
244 SvFLAGS(sv) = SVTYPEMASK;
248 SvFLAGS(sv) = SVTYPEMASK;
257 sv_add_arena(nice_chunk, nice_chunk_size, 0);
261 char *chunk; /* must use New here to match call to */
262 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
263 sv_add_arena(chunk, 1008, 0);
277 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
278 svend = &sva[SvREFCNT(sva)];
279 for (sv = sva + 1; sv < svend; ++sv) {
280 if (SvTYPE(sv) != SVTYPEMASK)
292 if (SvTYPE(sv) != SVTYPEMASK) {
293 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
294 PerlIO_printf(PerlIO_stderr(), "****\n");
302 visit(do_report_used);
311 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
312 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
318 /* XXX Might want to check arrays, etc. */
321 #ifndef DISABLE_DESTRUCTOR_KLUDGE
323 do_clean_named_objs(sv)
326 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
327 do_clean_objs(GvSV(sv));
334 #ifndef DISABLE_DESTRUCTOR_KLUDGE
335 visit(do_clean_named_objs);
337 visit(do_clean_objs);
344 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
345 SvFLAGS(sv) |= SVf_BREAK;
349 static int in_clean_all = 0;
365 /* Free arenas here, but be careful about fake ones. (We assume
366 contiguity of the fake ones with the corresponding real ones.) */
368 for (sva = sv_arenaroot; sva; sva = svanext) {
369 svanext = (SV*) SvANY(sva);
370 while (svanext && SvFAKE(svanext))
371 svanext = (SV*) SvANY(svanext);
374 Safefree((void *)sva);
385 * See comment in more_xiv() -- RAM.
387 xiv_root = (IV**)*xiv;
388 return (XPVIV*)((char*)xiv - sizeof(XPV));
397 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
398 *xiv = (IV *)xiv_root;
406 register IV** xivend;
407 XPV* ptr = (XPV*)safemalloc(1008);
408 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
409 xiv_arenaroot = ptr; /* to keep Purify happy */
412 xivend = &xiv[1008 / sizeof(IV *) - 1];
413 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
415 while (xiv < xivend) {
416 *xiv = (IV *)(xiv + 1);
429 xnv_root = *(double**)xnv;
430 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
439 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
440 *(double**)xnv = xnv_root;
447 register double* xnv;
448 register double* xnvend;
449 xnv = (double*)safemalloc(1008);
450 xnvend = &xnv[1008 / sizeof(double) - 1];
451 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
453 while (xnv < xnvend) {
454 *(double**)xnv = (double*)(xnv + 1);
467 xrv_root = (XRV*)xrv->xrv_rv;
477 p->xrv_rv = (SV*)xrv_root;
485 register XRV* xrvend;
486 xrv_root = (XRV*)safemalloc(1008);
488 xrvend = &xrv[1008 / sizeof(XRV) - 1];
489 while (xrv < xrvend) {
490 xrv->xrv_rv = (SV*)(xrv + 1);
503 xpv_root = (XPV*)xpv->xpv_pv;
513 p->xpv_pv = (char*)xpv_root;
521 register XPV* xpvend;
522 xpv_root = (XPV*)safemalloc(1008);
524 xpvend = &xpv[1008 / sizeof(XPV) - 1];
525 while (xpv < xpvend) {
526 xpv->xpv_pv = (char*)(xpv + 1);
534 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
535 #define del_XIV(p) free((char*)p)
537 #define new_XIV() (void*)new_xiv()
538 #define del_XIV(p) del_xiv(p)
542 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
543 #define del_XNV(p) free((char*)p)
545 #define new_XNV() (void*)new_xnv()
546 #define del_XNV(p) del_xnv(p)
550 #define new_XRV() (void*)safemalloc(sizeof(XRV))
551 #define del_XRV(p) free((char*)p)
553 #define new_XRV() (void*)new_xrv()
554 #define del_XRV(p) del_xrv(p)
558 #define new_XPV() (void*)safemalloc(sizeof(XPV))
559 #define del_XPV(p) free((char*)p)
561 #define new_XPV() (void*)new_xpv()
562 #define del_XPV(p) del_xpv(p)
565 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
566 #define del_XPVIV(p) free((char*)p)
568 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
569 #define del_XPVNV(p) free((char*)p)
571 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
572 #define del_XPVMG(p) free((char*)p)
574 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
575 #define del_XPVLV(p) free((char*)p)
577 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
578 #define del_XPVAV(p) free((char*)p)
580 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
581 #define del_XPVHV(p) free((char*)p)
583 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
584 #define del_XPVCV(p) free((char*)p)
586 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
587 #define del_XPVGV(p) free((char*)p)
589 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
590 #define del_XPVBM(p) free((char*)p)
592 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
593 #define del_XPVFM(p) free((char*)p)
595 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
596 #define del_XPVIO(p) free((char*)p)
611 if (SvTYPE(sv) == mt)
617 switch (SvTYPE(sv)) {
632 nv = (double)SvIVX(sv);
638 else if (mt < SVt_PVIV)
655 pv = (char*)SvRV(sv);
659 nv = (double)(unsigned long)pv;
675 else if (mt == SVt_NV)
686 del_XPVIV(SvANY(sv));
696 del_XPVNV(SvANY(sv));
706 del_XPVMG(SvANY(sv));
709 croak("Can't upgrade that kind of scalar");
714 croak("Can't upgrade to undef");
716 SvANY(sv) = new_XIV();
720 SvANY(sv) = new_XNV();
724 SvANY(sv) = new_XRV();
728 SvANY(sv) = new_XPV();
734 SvANY(sv) = new_XPVIV();
744 SvANY(sv) = new_XPVNV();
752 SvANY(sv) = new_XPVMG();
762 SvANY(sv) = new_XPVLV();
776 SvANY(sv) = new_XPVAV();
791 SvANY(sv) = new_XPVHV();
807 SvANY(sv) = new_XPVCV();
808 Zero(SvANY(sv), 1, XPVCV);
818 SvANY(sv) = new_XPVGV();
833 SvANY(sv) = new_XPVBM();
846 SvANY(sv) = new_XPVFM();
847 Zero(SvANY(sv), 1, XPVFM);
857 SvANY(sv) = new_XPVIO();
858 Zero(SvANY(sv), 1, XPVIO);
869 SvFLAGS(sv) &= ~SVTYPEMASK;
887 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
891 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
892 if (sv == &sv_undef) {
893 strcpy(t, "SV_UNDEF");
894 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
895 SVs_GMG|SVs_SMG|SVs_RMG)) &&
899 else if (sv == &sv_no) {
901 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
902 SVs_GMG|SVs_SMG|SVs_RMG)) &&
903 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
911 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
912 SVs_GMG|SVs_SMG|SVs_RMG)) &&
913 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
916 SvPVX(sv) && *SvPVX(sv) == '1' &&
923 else if (SvREFCNT(sv) == 0) {
929 if (t - tokenbuf + unref > 10) {
930 strcpy(tokenbuf + unref + 3,"...");
936 switch (SvTYPE(sv)) {
976 sprintf(t, "CV(%s)", GvNAME(CvGV(sv)));
999 sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1001 sprintf(t,"(\"%.127s\")",SvPVX(sv));
1003 else if (SvNOKp(sv))
1004 sprintf(t,"(%g)",SvNVX(sv));
1005 else if (SvIOKp(sv))
1006 sprintf(t,"(%ld)",(long)SvIVX(sv));
1027 char *s = SvPVX(sv);
1028 SvLEN(sv) += SvIVX(sv);
1029 SvPVX(sv) -= SvIVX(sv);
1031 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1033 SvFLAGS(sv) &= ~SVf_OOK;
1041 register I32 newlen;
1043 unsigned long newlen;
1048 #ifdef HAS_64K_LIMIT
1049 if (newlen >= 0x10000) {
1050 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1053 #endif /* HAS_64K_LIMIT */
1056 if (SvTYPE(sv) < SVt_PV) {
1057 sv_upgrade(sv, SVt_PV);
1060 else if (SvOOK(sv)) { /* pv is offset? */
1063 if (newlen > SvLEN(sv))
1064 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1068 if (newlen > SvLEN(sv)) { /* need more room? */
1070 Renew(s,newlen,char);
1072 New(703,s,newlen,char);
1074 SvLEN_set(sv, newlen);
1084 if (SvTHINKFIRST(sv)) {
1085 if (SvREADONLY(sv) && curcop != &compiling)
1090 switch (SvTYPE(sv)) {
1092 sv_upgrade(sv, SVt_IV);
1095 sv_upgrade(sv, SVt_PVNV);
1099 sv_upgrade(sv, SVt_PVIV);
1113 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1114 op_name[op->op_type]);
1116 (void)SvIOK_only(sv); /* validate number */
1129 sv_setnv(sv, (double)u);
1137 if (SvTHINKFIRST(sv)) {
1138 if (SvREADONLY(sv) && curcop != &compiling)
1143 switch (SvTYPE(sv)) {
1146 sv_upgrade(sv, SVt_NV);
1152 sv_upgrade(sv, SVt_PVNV);
1159 (void)SvOOK_off(sv);
1172 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1173 op_name[op->op_type]);
1176 (void)SvNOK_only(sv); /* validate number */
1189 for (s = SvPVX(sv), i = 50; *s && i; s++,i--) {
1191 if (ch & 128 && !isprint(ch)) {
1211 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1212 op_name[op->op_type]);
1214 warn("Argument \"%s\" isn't numeric", tmpbuf);
1223 if (SvGMAGICAL(sv)) {
1228 if (SvNVX(sv) < 0.0)
1229 return I_V(SvNVX(sv));
1231 return (IV) U_V(SvNVX(sv));
1233 if (SvPOKp(sv) && SvLEN(sv)) {
1234 if (dowarn && !looks_like_number(sv))
1236 return (IV)atol(SvPVX(sv));
1242 if (SvTHINKFIRST(sv)) {
1246 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1247 return SvIV(tmpstr);
1248 #endif /* OVERLOAD */
1249 return (IV)SvRV(sv);
1251 if (SvREADONLY(sv)) {
1253 if (SvNVX(sv) < 0.0)
1254 return I_V(SvNVX(sv));
1256 return (IV) U_V(SvNVX(sv));
1258 if (SvPOKp(sv) && SvLEN(sv)) {
1259 if (dowarn && !looks_like_number(sv))
1261 return (IV)atol(SvPVX(sv));
1268 switch (SvTYPE(sv)) {
1270 sv_upgrade(sv, SVt_IV);
1273 sv_upgrade(sv, SVt_PVIV);
1276 sv_upgrade(sv, SVt_PVNV);
1281 if (SvNVX(sv) < 0.0)
1282 SvIVX(sv) = I_V(SvNVX(sv));
1284 SvIVX(sv) = (IV) U_V(SvNVX(sv));
1286 else if (SvPOKp(sv) && SvLEN(sv)) {
1287 if (dowarn && !looks_like_number(sv))
1290 SvIVX(sv) = (IV)atol(SvPVX(sv));
1293 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1297 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1298 (unsigned long)sv,(long)SvIVX(sv)));
1308 if (SvGMAGICAL(sv)) {
1312 if (SvPOKp(sv) && SvLEN(sv)) {
1313 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1315 return atof(SvPVX(sv));
1318 return (double)SvIVX(sv);
1323 if (SvTHINKFIRST(sv)) {
1327 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1328 return SvNV(tmpstr);
1329 #endif /* OVERLOAD */
1330 return (double)(unsigned long)SvRV(sv);
1332 if (SvREADONLY(sv)) {
1333 if (SvPOKp(sv) && SvLEN(sv)) {
1334 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1336 return atof(SvPVX(sv));
1339 return (double)SvIVX(sv);
1345 if (SvTYPE(sv) < SVt_NV) {
1346 if (SvTYPE(sv) == SVt_IV)
1347 sv_upgrade(sv, SVt_PVNV);
1349 sv_upgrade(sv, SVt_NV);
1350 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1352 else if (SvTYPE(sv) < SVt_PVNV)
1353 sv_upgrade(sv, SVt_PVNV);
1355 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1357 SvNVX(sv) = (double)SvIVX(sv);
1359 else if (SvPOKp(sv) && SvLEN(sv)) {
1360 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1362 SvNVX(sv) = atof(SvPVX(sv));
1365 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1370 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1386 if (SvGMAGICAL(sv)) {
1393 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1397 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1405 if (SvTHINKFIRST(sv)) {
1409 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1410 return SvPV(tmpstr,*lp);
1411 #endif /* OVERLOAD */
1416 switch (SvTYPE(sv)) {
1425 case SVt_PVMG: s = "SCALAR"; break;
1426 case SVt_PVLV: s = "LVALUE"; break;
1427 case SVt_PVAV: s = "ARRAY"; break;
1428 case SVt_PVHV: s = "HASH"; break;
1429 case SVt_PVCV: s = "CODE"; break;
1430 case SVt_PVGV: s = "GLOB"; break;
1431 case SVt_PVFM: s = "FORMATLINE"; break;
1432 case SVt_PVIO: s = "FILEHANDLE"; break;
1433 default: s = "UNKNOWN"; break;
1436 sprintf(tokenbuf, "%s=%s(0x%lx)",
1437 HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
1439 sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
1445 if (SvREADONLY(sv)) {
1447 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1451 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1460 if (!SvUPGRADE(sv, SVt_PV))
1463 if (SvTYPE(sv) < SVt_PVNV)
1464 sv_upgrade(sv, SVt_PVNV);
1467 olderrno = errno; /* some Xenix systems wipe out errno here */
1469 if (SvNVX(sv) == 0.0)
1470 (void)strcpy(s,"0");
1473 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1475 #ifdef FIXNEGATIVEZERO
1476 if (*s == '-' && s[1] == '0' && !s[2])
1485 else if (SvIOKp(sv)) {
1486 if (SvTYPE(sv) < SVt_PVIV)
1487 sv_upgrade(sv, SVt_PVIV);
1490 olderrno = errno; /* some Xenix systems wipe out errno here */
1491 (void)sprintf(s,"%ld",(long)SvIVX(sv));
1496 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1502 *lp = s - SvPVX(sv);
1505 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1509 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1510 /* Sneaky stuff here */
1513 sv = sv_newmortal();
1514 *lp = strlen(tokenbuf);
1515 sv_setpvn(sv, tokenbuf, *lp);
1521 #ifdef FIXNEGATIVEZERO
1522 if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2])
1523 strcpy(tokenbuf,"0");
1525 (void)SvUPGRADE(sv, SVt_PV);
1526 len = *lp = strlen(tokenbuf);
1527 s = SvGROW(sv, len + 1);
1529 (void)strcpy(s, tokenbuf);
1535 /* This function is only called on magical items */
1549 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1550 return SvTRUE(tmpsv);
1552 #endif /* OVERLOAD */
1553 return SvRV(sv) != 0;
1557 if ((Xpv = (XPV*)SvANY(sv)) &&
1558 (*Xpv->xpv_pv > '0' ||
1560 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1567 return SvIVX(sv) != 0;
1570 return SvNVX(sv) != 0.0;
1577 /* Note: sv_setsv() should not be called with a source string that needs
1578 * to be reused, since it may destroy the source string if it is marked
1587 register U32 sflags;
1593 if (SvTHINKFIRST(dstr)) {
1594 if (SvREADONLY(dstr) && curcop != &compiling)
1601 stype = SvTYPE(sstr);
1602 dtype = SvTYPE(dstr);
1604 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1605 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1606 sv_setpvn(dstr, "", 0);
1607 (void)SvPOK_only(dstr);
1608 dtype = SvTYPE(dstr);
1613 #endif /* OVERLOAD */
1614 /* There's a lot of redundancy below but we're going for speed here */
1618 (void)SvOK_off(dstr);
1621 if (dtype <= SVt_PV) {
1623 sv_upgrade(dstr, SVt_IV);
1624 else if (dtype == SVt_NV)
1625 sv_upgrade(dstr, SVt_PVNV);
1626 else if (dtype <= SVt_PV)
1627 sv_upgrade(dstr, SVt_PVIV);
1631 if (dtype <= SVt_PVIV) {
1633 sv_upgrade(dstr, SVt_NV);
1634 else if (dtype == SVt_PVIV)
1635 sv_upgrade(dstr, SVt_PVNV);
1636 else if (dtype <= SVt_PV)
1637 sv_upgrade(dstr, SVt_PVNV);
1642 sv_upgrade(dstr, SVt_RV);
1643 else if (dtype == SVt_PVGV &&
1644 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1647 if (curcop->cop_stash != GvSTASH(dstr))
1648 GvIMPORTED_on(dstr);
1657 sv_upgrade(dstr, SVt_PV);
1660 if (dtype < SVt_PVIV)
1661 sv_upgrade(dstr, SVt_PVIV);
1664 if (dtype < SVt_PVNV)
1665 sv_upgrade(dstr, SVt_PVNV);
1669 sv_upgrade(dstr, SVt_PVLV);
1677 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1678 op_name[op->op_type]);
1680 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1684 if (dtype <= SVt_PVGV) {
1686 if (dtype != SVt_PVGV) {
1687 char *name = GvNAME(sstr);
1688 STRLEN len = GvNAMELEN(sstr);
1689 sv_upgrade(dstr, SVt_PVGV);
1690 sv_magic(dstr, dstr, '*', name, len);
1691 GvSTASH(dstr) = GvSTASH(sstr);
1692 GvNAME(dstr) = savepvn(name, len);
1693 GvNAMELEN(dstr) = len;
1694 SvFAKE_on(dstr); /* can coerce to non-glob */
1696 (void)SvOK_off(dstr);
1697 GvINTRO_off(dstr); /* one-shot flag */
1699 GvGP(dstr) = gp_ref(GvGP(sstr));
1701 if (curcop->cop_stash != GvSTASH(dstr))
1702 GvIMPORTED_on(dstr);
1710 sv_upgrade(dstr, stype);
1711 if (SvGMAGICAL(sstr))
1715 sflags = SvFLAGS(sstr);
1717 if (sflags & SVf_ROK) {
1718 if (dtype >= SVt_PV) {
1719 if (dtype == SVt_PVGV) {
1720 SV *sref = SvREFCNT_inc(SvRV(sstr));
1722 int intro = GvINTRO(dstr);
1726 GvGP(dstr)->gp_refcnt--;
1727 GvINTRO_off(dstr); /* one-shot flag */
1728 Newz(602,gp, 1, GP);
1731 GvSV(dstr) = NEWSV(72,0);
1732 GvLINE(dstr) = curcop->cop_line;
1733 GvEGV(dstr) = (GV*)dstr;
1736 switch (SvTYPE(sref)) {
1739 SAVESPTR(GvAV(dstr));
1741 dref = (SV*)GvAV(dstr);
1742 GvAV(dstr) = (AV*)sref;
1743 if (curcop->cop_stash != GvSTASH(dstr))
1744 GvIMPORTED_AV_on(dstr);
1748 SAVESPTR(GvHV(dstr));
1750 dref = (SV*)GvHV(dstr);
1751 GvHV(dstr) = (HV*)sref;
1752 if (curcop->cop_stash != GvSTASH(dstr))
1753 GvIMPORTED_HV_on(dstr);
1757 SAVESPTR(GvCV(dstr));
1759 CV* cv = GvCV(dstr);
1762 if (dowarn && sref != dref &&
1763 !GvCVGEN((GV*)dstr) &&
1764 (CvROOT(cv) || CvXSUB(cv)) )
1765 warn("Subroutine %s redefined",
1766 GvENAME((GV*)dstr));
1770 if (GvCV(dstr) != (CV*)sref) {
1771 GvCV(dstr) = (CV*)sref;
1772 GvASSUMECV_on(dstr);
1774 if (curcop->cop_stash != GvSTASH(dstr))
1775 GvIMPORTED_CV_on(dstr);
1779 SAVESPTR(GvIOp(dstr));
1781 dref = (SV*)GvIOp(dstr);
1782 GvIOp(dstr) = (IO*)sref;
1786 SAVESPTR(GvSV(dstr));
1788 dref = (SV*)GvSV(dstr);
1790 if (curcop->cop_stash != GvSTASH(dstr))
1791 GvIMPORTED_SV_on(dstr);
1802 (void)SvOOK_off(dstr); /* backoff */
1803 Safefree(SvPVX(dstr));
1804 SvLEN(dstr)=SvCUR(dstr)=0;
1807 (void)SvOK_off(dstr);
1808 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
1810 if (sflags & SVp_NOK) {
1812 SvNVX(dstr) = SvNVX(sstr);
1814 if (sflags & SVp_IOK) {
1815 (void)SvIOK_on(dstr);
1816 SvIVX(dstr) = SvIVX(sstr);
1819 if (SvAMAGIC(sstr)) {
1822 #endif /* OVERLOAD */
1824 else if (sflags & SVp_POK) {
1827 * Check to see if we can just swipe the string. If so, it's a
1828 * possible small lose on short strings, but a big win on long ones.
1829 * It might even be a win on short strings if SvPVX(dstr)
1830 * has to be allocated and SvPVX(sstr) has to be freed.
1833 if (SvTEMP(sstr) && /* slated for free anyway? */
1834 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
1836 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
1838 SvFLAGS(dstr) &= ~SVf_OOK;
1839 Safefree(SvPVX(dstr) - SvIVX(dstr));
1842 Safefree(SvPVX(dstr));
1844 (void)SvPOK_only(dstr);
1845 SvPV_set(dstr, SvPVX(sstr));
1846 SvLEN_set(dstr, SvLEN(sstr));
1847 SvCUR_set(dstr, SvCUR(sstr));
1849 (void)SvOK_off(sstr);
1850 SvPV_set(sstr, Nullch);
1855 else { /* have to copy actual string */
1856 STRLEN len = SvCUR(sstr);
1858 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
1859 Move(SvPVX(sstr),SvPVX(dstr),len,char);
1860 SvCUR_set(dstr, len);
1861 *SvEND(dstr) = '\0';
1862 (void)SvPOK_only(dstr);
1865 if (sflags & SVp_NOK) {
1867 SvNVX(dstr) = SvNVX(sstr);
1869 if (sflags & SVp_IOK) {
1870 (void)SvIOK_on(dstr);
1871 SvIVX(dstr) = SvIVX(sstr);
1874 else if (sflags & SVp_NOK) {
1875 SvNVX(dstr) = SvNVX(sstr);
1876 (void)SvNOK_only(dstr);
1878 (void)SvIOK_on(dstr);
1879 SvIVX(dstr) = SvIVX(sstr);
1882 else if (sflags & SVp_IOK) {
1883 (void)SvIOK_only(dstr);
1884 SvIVX(dstr) = SvIVX(sstr);
1887 (void)SvOK_off(dstr);
1893 sv_setpvn(sv,ptr,len)
1896 register STRLEN len;
1898 assert(len >= 0); /* STRLEN is probably unsigned, so this may
1899 elicit a warning, but it won't hurt. */
1900 if (SvTHINKFIRST(sv)) {
1901 if (SvREADONLY(sv) && curcop != &compiling)
1910 if (SvTYPE(sv) >= SVt_PV) {
1911 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
1914 else if (!sv_upgrade(sv, SVt_PV))
1916 SvGROW(sv, len + 1);
1917 Move(ptr,SvPVX(sv),len,char);
1920 (void)SvPOK_only(sv); /* validate pointer */
1929 register STRLEN len;
1931 if (SvTHINKFIRST(sv)) {
1932 if (SvREADONLY(sv) && curcop != &compiling)
1942 if (SvTYPE(sv) >= SVt_PV) {
1943 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
1946 else if (!sv_upgrade(sv, SVt_PV))
1948 SvGROW(sv, len + 1);
1949 Move(ptr,SvPVX(sv),len+1,char);
1951 (void)SvPOK_only(sv); /* validate pointer */
1956 sv_usepvn(sv,ptr,len)
1959 register STRLEN len;
1961 if (SvTHINKFIRST(sv)) {
1962 if (SvREADONLY(sv) && curcop != &compiling)
1967 if (!SvUPGRADE(sv, SVt_PV))
1974 Safefree(SvPVX(sv));
1975 Renew(ptr, len+1, char);
1978 SvLEN_set(sv, len+1);
1980 (void)SvPOK_only(sv); /* validate pointer */
1985 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
1989 register STRLEN delta;
1991 if (!ptr || !SvPOKp(sv))
1993 if (SvTHINKFIRST(sv)) {
1994 if (SvREADONLY(sv) && curcop != &compiling)
1999 if (SvTYPE(sv) < SVt_PVIV)
2000 sv_upgrade(sv,SVt_PVIV);
2004 SvFLAGS(sv) |= SVf_OOK;
2006 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2007 delta = ptr - SvPVX(sv);
2015 sv_catpvn(sv,ptr,len)
2018 register STRLEN len;
2023 junk = SvPV_force(sv, tlen);
2024 SvGROW(sv, tlen + len + 1);
2027 Move(ptr,SvPVX(sv)+tlen,len,char);
2030 (void)SvPOK_only(sv); /* validate pointer */
2043 if (s = SvPV(sstr, len))
2044 sv_catpvn(dstr,s,len);
2052 register STRLEN len;
2058 junk = SvPV_force(sv, tlen);
2060 SvGROW(sv, tlen + len + 1);
2063 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2065 (void)SvPOK_only(sv); /* validate pointer */
2085 sv_upgrade(sv, SVt_PV);
2086 SvGROW(sv, len + 1);
2091 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2094 sv_magic(sv, obj, how, name, namlen)
2103 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2105 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2106 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2113 if (!SvUPGRADE(sv, SVt_PVMG))
2116 Newz(702,mg, 1, MAGIC);
2117 mg->mg_moremagic = SvMAGIC(sv);
2120 if (!obj || obj == sv || how == '#')
2123 mg->mg_obj = SvREFCNT_inc(obj);
2124 mg->mg_flags |= MGf_REFCOUNTED;
2127 mg->mg_len = namlen;
2130 mg->mg_ptr = savepvn(name, namlen);
2131 else if (namlen == HEf_SVKEY)
2132 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2136 mg->mg_virtual = &vtbl_sv;
2140 mg->mg_virtual = &vtbl_amagic;
2143 mg->mg_virtual = &vtbl_amagicelem;
2148 #endif /* OVERLOAD */
2150 mg->mg_virtual = &vtbl_bm;
2153 mg->mg_virtual = &vtbl_env;
2156 mg->mg_virtual = &vtbl_fm;
2159 mg->mg_virtual = &vtbl_envelem;
2162 mg->mg_virtual = &vtbl_mglob;
2165 mg->mg_virtual = &vtbl_isa;
2168 mg->mg_virtual = &vtbl_isaelem;
2171 mg->mg_virtual = &vtbl_nkeys;
2178 mg->mg_virtual = &vtbl_dbline;
2181 mg->mg_virtual = &vtbl_pack;
2185 mg->mg_virtual = &vtbl_packelem;
2188 mg->mg_virtual = &vtbl_sig;
2191 mg->mg_virtual = &vtbl_sigelem;
2194 mg->mg_virtual = &vtbl_taint;
2198 mg->mg_virtual = &vtbl_uvar;
2201 mg->mg_virtual = &vtbl_vec;
2204 mg->mg_virtual = &vtbl_substr;
2207 mg->mg_virtual = &vtbl_glob;
2210 mg->mg_virtual = &vtbl_arylen;
2213 mg->mg_virtual = &vtbl_pos;
2215 case '~': /* Reserved for use by extensions not perl internals. */
2216 /* Useful for attaching extension internal data to perl vars. */
2217 /* Note that multiple extensions may clash if magical scalars */
2218 /* etc holding private data from one are passed to another. */
2222 croak("Don't know how to handle magic of type '%c'", how);
2226 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2230 sv_unmagic(sv, type)
2236 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2239 for (mg = *mgp; mg; mg = *mgp) {
2240 if (mg->mg_type == type) {
2241 MGVTBL* vtbl = mg->mg_virtual;
2242 *mgp = mg->mg_moremagic;
2243 if (vtbl && vtbl->svt_free)
2244 (*vtbl->svt_free)(sv, mg);
2245 if (mg->mg_ptr && mg->mg_type != 'g')
2246 if (mg->mg_len >= 0)
2247 Safefree(mg->mg_ptr);
2248 else if (mg->mg_len == HEf_SVKEY)
2249 SvREFCNT_dec((SV*)mg->mg_ptr);
2250 if (mg->mg_flags & MGf_REFCOUNTED)
2251 SvREFCNT_dec(mg->mg_obj);
2255 mgp = &mg->mg_moremagic;
2259 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2266 sv_insert(bigstr,offset,len,little,littlelen)
2275 register char *midend;
2276 register char *bigend;
2280 croak("Can't modify non-existent substring");
2281 SvPV_force(bigstr, na);
2283 i = littlelen - len;
2284 if (i > 0) { /* string might grow */
2285 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2286 mid = big + offset + len;
2287 midend = bigend = big + SvCUR(bigstr);
2290 while (midend > mid) /* shove everything down */
2291 *--bigend = *--midend;
2292 Move(little,big+offset,littlelen,char);
2298 Move(little,SvPVX(bigstr)+offset,len,char);
2303 big = SvPVX(bigstr);
2306 bigend = big + SvCUR(bigstr);
2308 if (midend > bigend)
2309 croak("panic: sv_insert");
2311 if (mid - big > bigend - midend) { /* faster to shorten from end */
2313 Move(little, mid, littlelen,char);
2316 i = bigend - midend;
2318 Move(midend, mid, i,char);
2322 SvCUR_set(bigstr, mid - big);
2325 else if (i = mid - big) { /* faster from front */
2326 midend -= littlelen;
2328 sv_chop(bigstr,midend-i);
2333 Move(little, mid, littlelen,char);
2335 else if (littlelen) {
2336 midend -= littlelen;
2337 sv_chop(bigstr,midend);
2338 Move(little,midend,littlelen,char);
2341 sv_chop(bigstr,midend);
2346 /* make sv point to what nstr did */
2353 U32 refcnt = SvREFCNT(sv);
2354 if (SvTHINKFIRST(sv)) {
2355 if (SvREADONLY(sv) && curcop != &compiling)
2360 if (SvREFCNT(nsv) != 1)
2361 warn("Reference miscount in sv_replace()");
2362 if (SvMAGICAL(sv)) {
2366 sv_upgrade(nsv, SVt_PVMG);
2367 SvMAGIC(nsv) = SvMAGIC(sv);
2368 SvFLAGS(nsv) |= SvMAGICAL(sv);
2374 StructCopy(nsv,sv,SV);
2375 SvREFCNT(sv) = refcnt;
2376 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2385 assert(SvREFCNT(sv) == 0);
2391 if (defstash) { /* Still have a symbol table? */
2392 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2395 SAVEFREESV(SvSTASH(sv));
2396 if (destructor && GvCV(destructor)) {
2400 sv_upgrade(&ref, SVt_RV);
2401 SvRV(&ref) = SvREFCNT_inc(sv);
2408 perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR);
2409 del_XRV(SvANY(&ref));
2415 SvREFCNT_dec(SvSTASH(sv));
2417 SvOBJECT_off(sv); /* Curse the object. */
2418 if (SvTYPE(sv) != SVt_PVIO)
2419 --sv_objcount; /* XXX Might want something more general */
2424 && (ret = perl_get_sv("DB::ret", FALSE))
2425 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2426 /* Debugger is prone to dangling references. */
2431 croak("panic: dangling references in DESTROY");
2435 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2437 switch (SvTYPE(sv)) {
2440 Safefree(IoTOP_NAME(sv));
2441 Safefree(IoFMT_NAME(sv));
2442 Safefree(IoBOTTOM_NAME(sv));
2458 Safefree(GvNAME(sv));
2465 (void)SvOOK_off(sv);
2470 SvREFCNT_dec(SvRV(sv));
2471 else if (SvPVX(sv) && SvLEN(sv))
2472 Safefree(SvPVX(sv));
2482 switch (SvTYPE(sv)) {
2498 del_XPVIV(SvANY(sv));
2501 del_XPVNV(SvANY(sv));
2504 del_XPVMG(SvANY(sv));
2507 del_XPVLV(SvANY(sv));
2510 del_XPVAV(SvANY(sv));
2513 del_XPVHV(SvANY(sv));
2516 del_XPVCV(SvANY(sv));
2519 del_XPVGV(SvANY(sv));
2522 del_XPVBM(SvANY(sv));
2525 del_XPVFM(SvANY(sv));
2528 del_XPVIO(SvANY(sv));
2531 SvFLAGS(sv) &= SVf_BREAK;
2532 SvFLAGS(sv) |= SVTYPEMASK;
2550 if (SvREADONLY(sv)) {
2551 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2554 if (SvREFCNT(sv) == 0) {
2555 if (SvFLAGS(sv) & SVf_BREAK)
2557 if (in_clean_all) /* All is fair */
2559 warn("Attempt to free unreferenced scalar");
2562 if (--SvREFCNT(sv) > 0)
2566 warn("Attempt to free temp prematurely");
2587 junk = SvPV(sv, len);
2606 pv1 = SvPV(str1, cur1);
2611 pv2 = SvPV(str2, cur2);
2616 return !memcmp(pv1, pv2, cur1);
2630 if (lc_collate_active) { /* NOTE: this is the LC_COLLATE branch */
2636 pv1 = SvPV(str1, cur1);
2640 char * pv1x = mem_collxfrm(pv1, cur1, &cur1x);
2651 pv2 = SvPV(str2, cur2);
2655 char * pv2x = mem_collxfrm(pv2, cur2, &cur2x);
2664 return cur2 ? -1 : 0;
2672 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2678 return retval < 0 ? -1 : 1;
2683 return cur1 < cur2 ? -1 : 1;
2685 } else { /* NOTE: this is the non-LC_COLLATE branch */
2691 pv1 = SvPV(str1, cur1);
2697 pv2 = SvPV(str2, cur2);
2700 return cur2 ? -1 : 0;
2705 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2708 return retval < 0 ? -1 : 1;
2713 return cur1 < cur2 ? -1 : 1;
2718 sv_gets(sv,fp,append)
2720 register PerlIO *fp;
2725 register STDCHAR rslast;
2726 register STDCHAR *bp;
2730 if (SvTHINKFIRST(sv)) {
2731 if (SvREADONLY(sv) && curcop != &compiling)
2736 if (!SvUPGRADE(sv, SVt_PV))
2743 else if (RsPARA(rs)) {
2748 rsptr = SvPV(rs, rslen);
2749 rslast = rslen ? rsptr[rslen - 1] : '\0';
2751 if (RsPARA(rs)) { /* have to do this both before and after */
2752 do { /* to make sure file boundaries work right */
2755 i = PerlIO_getc(fp);
2759 PerlIO_ungetc(fp,i);
2765 /* See if we know enough about I/O mechanism to cheat it ! */
2767 /* This used to be #ifdef test - it is made run-time test for ease
2768 of abstracting out stdio interface. One call should be cheap
2769 enough here - and may even be a macro allowing compile
2773 if (PerlIO_fast_gets(fp)) {
2776 * We're going to steal some values from the stdio struct
2777 * and put EVERYTHING in the innermost loop into registers.
2779 register STDCHAR *ptr;
2783 #if defined(VMS) && defined(PERLIO_IS_STDIO)
2784 /* An ungetc()d char is handled separately from the regular
2785 * buffer, so we getc() it back out and stuff it in the buffer.
2787 i = PerlIO_getc(fp);
2788 if (i == EOF) return 0;
2789 *(--((*fp)->_ptr)) = (unsigned char) i;
2793 /* Here is some breathtakingly efficient cheating */
2795 cnt = PerlIO_get_cnt(fp); /* get count into register */
2796 (void)SvPOK_only(sv); /* validate pointer */
2797 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
2798 if (cnt > 80 && SvLEN(sv) > append) {
2799 shortbuffered = cnt - SvLEN(sv) + append + 1;
2800 cnt -= shortbuffered;
2804 SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */
2809 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
2810 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
2811 DEBUG_P(PerlIO_printf(Perl_debug_log,
2812 "Screamer: entering, ptr=%d, cnt=%d\n",ptr,cnt));
2813 DEBUG_P(PerlIO_printf(Perl_debug_log,
2814 "Screamer: entering: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
2815 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), PerlIO_get_base(fp)));
2820 while (cnt > 0) { /* this | eat */
2822 if ((*bp++ = *ptr++) == rslast) /* really | dust */
2823 goto thats_all_folks; /* screams | sed :-) */
2827 memcpy((char*)bp, (char*)ptr, cnt); /* this | eat */
2828 bp += cnt; /* screams | dust */
2829 ptr += cnt; /* louder | sed :-) */
2834 if (shortbuffered) { /* oh well, must extend */
2835 cnt = shortbuffered;
2837 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
2839 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
2840 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
2844 DEBUG_P(PerlIO_printf(Perl_debug_log,
2845 "Screamer: going to getc, ptr=%d, cnt=%d\n",ptr,cnt));
2846 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
2847 DEBUG_P(PerlIO_printf(Perl_debug_log,
2848 "Screamer: pre: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
2849 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), PerlIO_get_base(fp)));
2850 /* This used to call 'filbuf' in stdio form, but as that behaves like
2851 getc when cnt <= 0 we use PerlIO_getc here to avoid another
2852 abstraction. This may also avoid issues with different named
2853 'filbuf' equivalents, though Configure tries to handle them now
2856 i = PerlIO_getc(fp); /* get more characters */
2857 DEBUG_P(PerlIO_printf(Perl_debug_log,
2858 "Screamer: post: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
2859 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), PerlIO_get_base(fp)));
2860 cnt = PerlIO_get_cnt(fp);
2861 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
2862 DEBUG_P(PerlIO_printf(Perl_debug_log,
2863 "Screamer: after getc, ptr=%d, cnt=%d\n",ptr,cnt));
2865 if (i == EOF) /* all done for ever? */
2866 goto thats_really_all_folks;
2868 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
2870 SvGROW(sv, bpx + cnt + 2);
2871 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
2873 *bp++ = i; /* store character from PerlIO_getc */
2875 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
2876 goto thats_all_folks;
2880 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
2881 memcmp((char*)bp - rslen, rsptr, rslen))
2882 goto screamer; /* go back to the fray */
2883 thats_really_all_folks:
2885 cnt += shortbuffered;
2886 DEBUG_P(PerlIO_printf(Perl_debug_log,
2887 "Screamer: quitting, ptr=%d, cnt=%d\n",ptr,cnt));
2888 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
2889 DEBUG_P(PerlIO_printf(Perl_debug_log,
2890 "Screamer: end: FILE * thinks ptr=%d, cnt=%d, base=%d\n",
2891 PerlIO_get_ptr(fp), PerlIO_get_cnt(fp), PerlIO_get_base(fp)));
2893 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
2894 DEBUG_P(PerlIO_printf(Perl_debug_log,
2895 "Screamer: done, len=%d, string=|%.*s|\n",
2896 SvCUR(sv),SvCUR(sv),SvPVX(sv)));
2900 /*The big, slow, and stupid way */
2905 register STDCHAR *bpe = buf + sizeof(buf);
2907 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
2908 ; /* keep reading */
2912 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
2913 /* Accomodate broken VAXC compiler, which applies U8 cast to
2914 * both args of ?: operator, causing EOF to change into 255
2916 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
2920 sv_catpvn(sv, (char *) buf, cnt);
2922 sv_setpvn(sv, (char *) buf, cnt);
2924 if (i != EOF && /* joy */
2926 SvCUR(sv) < rslen ||
2927 memcmp(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
2934 if (RsPARA(rs)) { /* have to do this both before and after */
2935 while (i != EOF) { /* to make sure file boundaries work right */
2936 i = PerlIO_getc(fp);
2938 PerlIO_ungetc(fp,i);
2944 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
2957 if (SvTHINKFIRST(sv)) {
2958 if (SvREADONLY(sv) && curcop != &compiling)
2962 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
2963 #endif /* OVERLOAD */
2969 flags = SvFLAGS(sv);
2970 if (flags & SVp_NOK) {
2971 (void)SvNOK_only(sv);
2975 if (flags & SVp_IOK) {
2976 if (SvIVX(sv) == IV_MAX)
2977 sv_setnv(sv, (double)IV_MAX + 1.0);
2979 (void)SvIOK_only(sv);
2984 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
2985 if ((flags & SVTYPEMASK) < SVt_PVNV)
2986 sv_upgrade(sv, SVt_NV);
2988 (void)SvNOK_only(sv);
2992 while (isALPHA(*d)) d++;
2993 while (isDIGIT(*d)) d++;
2995 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
2999 while (d >= SvPVX(sv)) {
3009 *(d--) -= 'z' - 'a' + 1;
3012 /* oh,oh, the number grew */
3013 SvGROW(sv, SvCUR(sv) + 2);
3015 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3031 if (SvTHINKFIRST(sv)) {
3032 if (SvREADONLY(sv) && curcop != &compiling)
3036 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3037 #endif /* OVERLOAD */
3043 flags = SvFLAGS(sv);
3044 if (flags & SVp_NOK) {
3046 (void)SvNOK_only(sv);
3049 if (flags & SVp_IOK) {
3050 if (SvIVX(sv) == IV_MIN)
3051 sv_setnv(sv, (double)IV_MIN - 1.0);
3053 (void)SvIOK_only(sv);
3058 if (!(flags & SVp_POK)) {
3059 if ((flags & SVTYPEMASK) < SVt_PVNV)
3060 sv_upgrade(sv, SVt_NV);
3062 (void)SvNOK_only(sv);
3065 sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
3068 /* Make a string that will exist for the duration of the expression
3069 * evaluation. Actually, it may have to last longer than that, but
3070 * hopefully we won't free it until it has been assigned to a
3071 * permanent location. */
3076 tmps_max += (tmps_max < 512) ? 128 : 512;
3077 Renew(tmps_stack, tmps_max, SV*);
3081 sv_mortalcopy(oldstr)
3090 sv_setsv(sv,oldstr);
3091 if (++tmps_ix >= tmps_max)
3093 tmps_stack[tmps_ix] = sv;
3106 SvFLAGS(sv) = SVs_TEMP;
3107 if (++tmps_ix >= tmps_max)
3109 tmps_stack[tmps_ix] = sv;
3113 /* same thing without the copying */
3121 if (SvREADONLY(sv) && curcop != &compiling)
3123 if (++tmps_ix >= tmps_max)
3125 tmps_stack[tmps_ix] = sv;
3143 sv_setpvn(sv,s,len);
3185 sv_upgrade(sv, SVt_RV);
3187 SvRV(sv) = SvREFCNT_inc(ref);
3192 /* make an exact duplicate of old */
3202 if (SvTYPE(old) == SVTYPEMASK) {
3203 warn("semi-panic: attempt to dup freed string");
3233 if (!*s) { /* reset ?? searches */
3234 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3235 pm->op_pmflags &= ~PMf_USED;
3240 /* reset variables */
3242 if (!HvARRAY(stash))
3245 Zero(todo, 256, char);
3252 for ( ; i <= max; i++) {
3255 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3256 for (entry = HvARRAY(stash)[i];
3258 entry = HeNEXT(entry)) {
3259 if (!todo[(U8)*HeKEY(entry)])
3261 gv = (GV*)HeVAL(entry);
3264 if (SvTYPE(sv) >= SVt_PV) {
3267 if (SvPVX(sv) != Nullch)
3274 if (HvNAME(GvHV(gv)))
3277 #ifndef VMS /* VMS has no environ array */
3279 environ[0] = Nullch;
3288 sv_2cv(sv, st, gvp, lref)
3298 return *gvp = Nullgv, Nullcv;
3299 switch (SvTYPE(sv)) {
3319 if (SvTYPE(cv) != SVt_PVCV)
3320 croak("Not a subroutine reference");
3328 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3334 if (lref && !GvCV(gv)) {
3337 tmpsv = NEWSV(704,0);
3338 gv_efullname3(tmpsv, gv, Nullch);
3339 newSUB(start_subparse(),
3340 newSVOP(OP_CONST, 0, tmpsv),
3345 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3362 if ((Xpv = (XPV*)SvANY(sv)) &&
3363 (*Xpv->xpv_pv > '0' ||
3365 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3372 return SvIVX(sv) != 0;
3375 return SvNVX(sv) != 0.0;
3377 return sv_2bool(sv);
3401 return (double)SvIVX(Sv);
3416 return sv_2pv(sv, lp);
3421 sv_pvn_force(sv, lp)
3427 if (SvREADONLY(sv) && curcop != &compiling)
3434 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3435 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3441 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3442 op_name[op->op_type]);
3446 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3451 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3452 SvGROW(sv, len + 1);
3453 Move(s,SvPVX(sv),len,char);
3458 SvPOK_on(sv); /* validate pointer */
3460 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3461 (unsigned long)sv,SvPVX(sv)));
3472 if (ob && SvOBJECT(sv))
3473 return HvNAME(SvSTASH(sv));
3475 switch (SvTYPE(sv)) {
3489 case SVt_PVLV: return "LVALUE";
3490 case SVt_PVAV: return "ARRAY";
3491 case SVt_PVHV: return "HASH";
3492 case SVt_PVCV: return "CODE";
3493 case SVt_PVGV: return "GLOB";
3494 case SVt_PVFM: return "FORMLINE";
3495 default: return "UNKNOWN";
3523 return strEQ(HvNAME(SvSTASH(sv)), name);
3527 newSVrv(rv, classname)
3537 sv_upgrade(rv, SVt_RV);
3538 SvRV(rv) = SvREFCNT_inc(sv);
3542 HV* stash = gv_stashpv(classname, TRUE);
3543 (void)sv_bless(rv, stash);
3549 sv_setref_pv(rv, classname, pv)
3555 sv_setsv(rv, &sv_undef);
3557 sv_setiv(newSVrv(rv,classname), (IV)pv);
3562 sv_setref_iv(rv, classname, iv)
3567 sv_setiv(newSVrv(rv,classname), iv);
3572 sv_setref_nv(rv, classname, nv)
3577 sv_setnv(newSVrv(rv,classname), nv);
3582 sv_setref_pvn(rv, classname, pv, n)
3588 sv_setpvn(newSVrv(rv,classname), pv, n);
3599 croak("Can't bless non-reference value");
3601 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
3602 if (SvREADONLY(ref))
3604 if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO)
3609 (void)SvUPGRADE(ref, SVt_PVMG);
3610 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
3614 if (Gv_AMG(stash)) {
3617 #endif /* OVERLOAD */
3626 assert(SvTYPE(sv) == SVt_PVGV);
3630 sv_unmagic(sv, '*');
3631 Safefree(GvNAME(sv));
3633 SvFLAGS(sv) &= ~SVTYPEMASK;
3634 SvFLAGS(sv) |= SVt_PVMG;
3645 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
3648 sv_2mortal(rv); /* Schedule for freeing later */
3662 PerlIO_printf(Perl_debug_log, "SV = 0\n");
3666 flags = SvFLAGS(sv);
3669 sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
3670 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
3672 if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,");
3673 if (flags & SVs_PADTMP) strcat(d, "PADTMP,");
3674 if (flags & SVs_PADMY) strcat(d, "PADMY,");
3675 if (flags & SVs_TEMP) strcat(d, "TEMP,");
3676 if (flags & SVs_OBJECT) strcat(d, "OBJECT,");
3677 if (flags & SVs_GMG) strcat(d, "GMG,");
3678 if (flags & SVs_SMG) strcat(d, "SMG,");
3679 if (flags & SVs_RMG) strcat(d, "RMG,");
3682 if (flags & SVf_IOK) strcat(d, "IOK,");
3683 if (flags & SVf_NOK) strcat(d, "NOK,");
3684 if (flags & SVf_POK) strcat(d, "POK,");
3685 if (flags & SVf_ROK) strcat(d, "ROK,");
3686 if (flags & SVf_OOK) strcat(d, "OOK,");
3687 if (flags & SVf_FAKE) strcat(d, "FAKE,");
3688 if (flags & SVf_READONLY) strcat(d, "READONLY,");
3692 if (flags & SVf_AMAGIC) strcat(d, "OVERLOAD,");
3693 #endif /* OVERLOAD */
3694 if (flags & SVp_IOK) strcat(d, "pIOK,");
3695 if (flags & SVp_NOK) strcat(d, "pNOK,");
3696 if (flags & SVp_POK) strcat(d, "pPOK,");
3697 if (flags & SVp_SCREAM) strcat(d, "SCREAM,");
3701 if (CvANON(sv)) strcat(d, "ANON,");
3702 if (CvCLONE(sv)) strcat(d, "CLONE,");
3703 if (CvCLONED(sv)) strcat(d, "CLONED,");
3706 if (HvSHAREKEYS(sv)) strcat(d, "SHAREKEYS,");
3707 if (HvLAZYDEL(sv)) strcat(d, "LAZYDEL,");
3710 if (GvINTRO(sv)) strcat(d, "INTRO,");
3711 if (GvMULTI(sv)) strcat(d, "MULTI,");
3712 if (GvASSUMECV(sv)) strcat(d, "ASSUMECV,");
3713 if (GvIMPORTED(sv)) {
3714 strcat(d, "IMPORT");
3715 if (GvIMPORTED(sv) == GVf_IMPORTED)
3719 if (GvIMPORTED_SV(sv)) strcat(d, " SV");
3720 if (GvIMPORTED_AV(sv)) strcat(d, " AV");
3721 if (GvIMPORTED_HV(sv)) strcat(d, " HV");
3722 if (GvIMPORTED_CV(sv)) strcat(d, " CV");
3727 if (flags & SVpgv_AM) strcat(d, "withOVERLOAD,");
3728 #endif /* OVERLOAD */
3737 PerlIO_printf(Perl_debug_log, "SV = ");
3740 PerlIO_printf(Perl_debug_log, "NULL%s\n", tmpbuf);
3743 PerlIO_printf(Perl_debug_log, "IV%s\n", tmpbuf);
3746 PerlIO_printf(Perl_debug_log, "NV%s\n", tmpbuf);
3749 PerlIO_printf(Perl_debug_log, "RV%s\n", tmpbuf);
3752 PerlIO_printf(Perl_debug_log, "PV%s\n", tmpbuf);
3755 PerlIO_printf(Perl_debug_log, "PVIV%s\n", tmpbuf);
3758 PerlIO_printf(Perl_debug_log, "PVNV%s\n", tmpbuf);
3761 PerlIO_printf(Perl_debug_log, "PVBM%s\n", tmpbuf);
3764 PerlIO_printf(Perl_debug_log, "PVMG%s\n", tmpbuf);
3767 PerlIO_printf(Perl_debug_log, "PVLV%s\n", tmpbuf);
3770 PerlIO_printf(Perl_debug_log, "PVAV%s\n", tmpbuf);
3773 PerlIO_printf(Perl_debug_log, "PVHV%s\n", tmpbuf);
3776 PerlIO_printf(Perl_debug_log, "PVCV%s\n", tmpbuf);
3779 PerlIO_printf(Perl_debug_log, "PVGV%s\n", tmpbuf);
3782 PerlIO_printf(Perl_debug_log, "PVFM%s\n", tmpbuf);
3785 PerlIO_printf(Perl_debug_log, "PVIO%s\n", tmpbuf);
3788 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", tmpbuf);
3791 if (type >= SVt_PVIV || type == SVt_IV)
3792 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
3793 if (type >= SVt_PVNV || type == SVt_NV)
3794 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
3796 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
3802 if (type <= SVt_PVLV) {
3804 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
3805 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
3807 PerlIO_printf(Perl_debug_log, " PV = 0\n");
3809 if (type >= SVt_PVMG) {
3811 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
3814 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
3818 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
3819 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
3820 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
3821 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
3822 sv_dump(LvTARG(sv));
3825 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
3826 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
3827 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
3828 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
3829 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
3830 flags = AvFLAGS(sv);
3833 if (flags & AVf_REAL) strcat(d, "REAL,");
3834 if (flags & AVf_REIFY) strcat(d, "REIFY,");
3835 if (flags & AVf_REUSED) strcat(d, "REUSED,");
3837 d[strlen(d)-1] = '\0';
3838 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n", d);
3841 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
3842 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
3843 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
3844 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
3845 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
3846 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
3848 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
3850 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
3855 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
3856 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
3857 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
3858 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
3859 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
3860 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
3861 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
3862 if (CvGV(sv) && GvNAME(CvGV(sv))) {
3863 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
3865 PerlIO_printf(Perl_debug_log, "\n");
3867 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
3868 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
3869 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
3870 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
3871 if (type == SVt_PVFM)
3872 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
3875 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
3876 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
3877 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
3878 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
3879 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
3880 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
3881 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
3882 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
3883 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
3884 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
3885 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
3886 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
3887 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
3888 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
3889 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
3890 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
3893 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
3894 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
3895 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
3896 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
3897 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
3898 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
3899 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
3900 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
3901 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
3902 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
3903 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
3904 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
3905 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
3906 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
3907 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
3908 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
3927 switch (SvTYPE(sv)) {
3935 croak("Bad filehandle: %s", GvNAME(gv));
3939 croak(no_usym, "filehandle");
3941 return sv_2io(SvRV(sv));
3942 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3948 croak("Bad filehandle: %s", SvPV(sv,na));