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.
17 /* The following is all to get DBL_DIG, in order to pick a nice
18 default value for printing floating point numbers in Gconvert.
28 #define DBL_DIG 15 /* A guess that works lots of places */
31 static SV *more_sv _((void));
32 static XPVIV *more_xiv _((void));
33 static XPVNV *more_xnv _((void));
34 static XPV *more_xpv _((void));
35 static XRV *more_xrv _((void));
36 static SV *new_sv _((void));
37 static XPVIV *new_xiv _((void));
38 static XPVNV *new_xnv _((void));
39 static XPV *new_xpv _((void));
40 static XRV *new_xrv _((void));
41 static void del_xiv _((XPVIV* p));
42 static void del_xnv _((XPVNV* p));
43 static void del_xpv _((XPV* p));
44 static void del_xrv _((XRV* p));
45 static void sv_mortalgrow _((void));
47 static void sv_unglob _((SV* sv));
51 #define new_SV() sv = (SV*)safemalloc(sizeof(SV))
52 #define del_SV(p) free((char*)p)
59 sv_root = (SV*)SvANY(sv); \
71 sv_root = (SV*)SvANY(sv);
83 SvANY(p) = (void *)sv_root; \
96 for (sv = sv_arenaroot; sv; sv = (SV *) SvANY(svend)) {
97 svend = &sv[1008 / sizeof(SV)];
98 if (p >= sv && p < svend)
102 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
106 SvANY(p) = (void *) sv_root;
112 SvANY(p) = (void *)sv_root; \
123 sv_root = (SV*)safemalloc(1012);
125 Zero(sv, 1012, char);
126 svend = &sv[1008 / sizeof(SV) - 1];
128 SvANY(sv) = (void *)(SV*)(sv + 1);
129 SvFLAGS(sv) = SVTYPEMASK;
134 SvANY(sv) = (void *) sv_arenaroot;
135 sv_arenaroot = sv_root;
146 for (sv = sv_arenaroot; sv; sv = (SV *) SvANY(sv)) {
147 svend = &sv[1008 / sizeof(SV)];
149 if (SvTYPE(sv) != SVTYPEMASK) {
150 fprintf(stderr, "****\n");
165 for (sv = sv_arenaroot; sv; sv = (SV *) SvANY(sv)) {
166 svend = &sv[1008 / sizeof(SV)];
168 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
169 DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "),
175 /* XXX Might want to check arrays, etc. */
187 for (sv = sv_arenaroot; sv; sv = (SV *) SvANY(sv)) {
188 svend = &sv[1008 / sizeof(SV)];
190 if (SvTYPE(sv) != SVTYPEMASK) {
191 DEBUG_D((fprintf(stderr, "Cleaning loops:\n "), sv_dump(sv));)
192 SvFLAGS(sv) |= SVf_BREAK;
207 * See comment in more_xiv() -- RAM.
209 xiv_root = (IV**)*xiv;
210 return (XPVIV*)((char*)xiv - sizeof(XPV));
219 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
220 *xiv = (IV *)xiv_root;
228 register IV** xivend;
229 XPV* ptr = (XPV*)safemalloc(1008);
230 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
231 xiv_arenaroot = ptr; /* to keep Purify happy */
234 xivend = &xiv[1008 / sizeof(IV *) - 1];
235 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
237 while (xiv < xivend) {
238 *xiv = (IV *)(xiv + 1);
251 xnv_root = *(double**)xnv;
252 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
261 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
262 *(double**)xnv = xnv_root;
269 register double* xnv;
270 register double* xnvend;
271 xnv = (double*)safemalloc(1008);
272 xnvend = &xnv[1008 / sizeof(double) - 1];
273 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
275 while (xnv < xnvend) {
276 *(double**)xnv = (double*)(xnv + 1);
289 xrv_root = (XRV*)xrv->xrv_rv;
299 p->xrv_rv = (SV*)xrv_root;
307 register XRV* xrvend;
308 xrv_root = (XRV*)safemalloc(1008);
310 xrvend = &xrv[1008 / sizeof(XRV) - 1];
311 while (xrv < xrvend) {
312 xrv->xrv_rv = (SV*)(xrv + 1);
325 xpv_root = (XPV*)xpv->xpv_pv;
335 p->xpv_pv = (char*)xpv_root;
343 register XPV* xpvend;
344 xpv_root = (XPV*)safemalloc(1008);
346 xpvend = &xpv[1008 / sizeof(XPV) - 1];
347 while (xpv < xpvend) {
348 xpv->xpv_pv = (char*)(xpv + 1);
356 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
357 #define del_XIV(p) free((char*)p)
359 #define new_XIV() (void*)new_xiv()
360 #define del_XIV(p) del_xiv(p)
364 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
365 #define del_XNV(p) free((char*)p)
367 #define new_XNV() (void*)new_xnv()
368 #define del_XNV(p) del_xnv(p)
372 #define new_XRV() (void*)safemalloc(sizeof(XRV))
373 #define del_XRV(p) free((char*)p)
375 #define new_XRV() (void*)new_xrv()
376 #define del_XRV(p) del_xrv(p)
380 #define new_XPV() (void*)safemalloc(sizeof(XPV))
381 #define del_XPV(p) free((char*)p)
383 #define new_XPV() (void*)new_xpv()
384 #define del_XPV(p) del_xpv(p)
387 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
388 #define del_XPVIV(p) free((char*)p)
390 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
391 #define del_XPVNV(p) free((char*)p)
393 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
394 #define del_XPVMG(p) free((char*)p)
396 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
397 #define del_XPVLV(p) free((char*)p)
399 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
400 #define del_XPVAV(p) free((char*)p)
402 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
403 #define del_XPVHV(p) free((char*)p)
405 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
406 #define del_XPVCV(p) free((char*)p)
408 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
409 #define del_XPVGV(p) free((char*)p)
411 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
412 #define del_XPVBM(p) free((char*)p)
414 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
415 #define del_XPVFM(p) free((char*)p)
417 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
418 #define del_XPVIO(p) free((char*)p)
433 if (SvTYPE(sv) == mt)
436 switch (SvTYPE(sv)) {
451 nv = (double)SvIVX(sv);
457 else if (mt < SVt_PVIV)
474 pv = (char*)SvRV(sv);
478 nv = (double)(unsigned long)pv;
495 else if (mt == SVt_NV)
507 del_XPVIV(SvANY(sv));
518 del_XPVNV(SvANY(sv));
528 del_XPVMG(SvANY(sv));
531 croak("Can't upgrade that kind of scalar");
536 croak("Can't upgrade to undef");
538 SvANY(sv) = new_XIV();
542 SvANY(sv) = new_XNV();
546 SvANY(sv) = new_XRV();
550 SvANY(sv) = new_XPV();
556 SvANY(sv) = new_XPVIV();
566 SvANY(sv) = new_XPVNV();
574 SvANY(sv) = new_XPVMG();
584 SvANY(sv) = new_XPVLV();
598 SvANY(sv) = new_XPVAV();
613 SvANY(sv) = new_XPVHV();
629 SvANY(sv) = new_XPVCV();
630 Zero(SvANY(sv), 1, XPVCV);
640 SvANY(sv) = new_XPVGV();
654 SvANY(sv) = new_XPVBM();
667 SvANY(sv) = new_XPVFM();
668 Zero(SvANY(sv), 1, XPVFM);
678 SvANY(sv) = new_XPVIO();
679 Zero(SvANY(sv), 1, XPVIO);
690 SvFLAGS(sv) &= ~SVTYPEMASK;
708 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
712 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
713 if (sv == &sv_undef) {
714 strcpy(t, "SV_UNDEF");
715 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
716 SVs_GMG|SVs_SMG|SVs_RMG)) &&
720 else if (sv == &sv_no) {
722 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
723 SVs_GMG|SVs_SMG|SVs_RMG)) &&
724 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
732 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
733 SVs_GMG|SVs_SMG|SVs_RMG)) &&
734 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
737 SvPVX(sv) && *SvPVX(sv) == '1' &&
744 else if (SvREFCNT(sv) == 0) {
750 if (t - tokenbuf + unref > 10) {
751 strcpy(tokenbuf + unref + 3,"...");
757 switch (SvTYPE(sv)) {
797 sprintf(t, "CV(%s)", GvNAME(CvGV(sv)));
820 sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
822 sprintf(t,"(\"%.127s\")",SvPVX(sv));
825 sprintf(t,"(%g)",SvNVX(sv));
827 sprintf(t,"(%ld)",(long)SvIVX(sv));
849 SvLEN(sv) += SvIVX(sv);
850 SvPVX(sv) -= SvIVX(sv);
852 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
854 SvFLAGS(sv) &= ~SVf_OOK;
864 unsigned long newlen;
870 if (newlen >= 0x10000) {
871 fprintf(stderr, "Allocation too large: %lx\n", newlen);
877 if (SvTYPE(sv) < SVt_PV) {
878 sv_upgrade(sv, SVt_PV);
881 else if (SvOOK(sv)) { /* pv is offset? */
884 if (newlen > SvLEN(sv))
885 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
889 if (newlen > SvLEN(sv)) { /* need more room? */
891 Renew(s,newlen,char);
893 New(703,s,newlen,char);
895 SvLEN_set(sv, newlen);
905 if (SvTHINKFIRST(sv)) {
906 if (SvREADONLY(sv) && curcop != &compiling)
911 switch (SvTYPE(sv)) {
913 sv_upgrade(sv, SVt_IV);
916 sv_upgrade(sv, SVt_PVNV);
920 sv_upgrade(sv, SVt_PVIV);
934 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
935 op_name[op->op_type]);
938 (void)SvIOK_only(sv); /* validate number */
947 if (SvTHINKFIRST(sv)) {
948 if (SvREADONLY(sv) && curcop != &compiling)
953 switch (SvTYPE(sv)) {
956 sv_upgrade(sv, SVt_NV);
962 sv_upgrade(sv, SVt_PVNV);
982 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
983 op_name[op->op_type]);
986 (void)SvNOK_only(sv); /* validate number */
999 for (s = SvPVX(sv), i = 50; *s && i; s++,i--) {
1001 if (ch & 128 && !isprint(ch)) {
1021 warn("Argument \"%s\" isn't numeric for %s", tmpbuf,
1022 op_name[op->op_type]);
1024 warn("Argument \"%s\" isn't numeric", tmpbuf);
1033 if (SvGMAGICAL(sv)) {
1038 if (SvNVX(sv) < 0.0)
1039 return I_V(SvNVX(sv));
1041 return (IV) U_V(SvNVX(sv));
1043 if (SvPOKp(sv) && SvLEN(sv)) {
1044 if (dowarn && !looks_like_number(sv))
1046 return (IV)atol(SvPVX(sv));
1052 if (SvTHINKFIRST(sv)) {
1056 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1057 return SvIV(tmpstr);
1058 #endif /* OVERLOAD */
1059 return (IV)SvRV(sv);
1061 if (SvREADONLY(sv)) {
1063 if (SvNVX(sv) < 0.0)
1064 return I_V(SvNVX(sv));
1066 return (IV) U_V(SvNVX(sv));
1068 if (SvPOKp(sv) && SvLEN(sv)) {
1069 if (dowarn && !looks_like_number(sv))
1071 return (IV)atol(SvPVX(sv));
1078 switch (SvTYPE(sv)) {
1080 sv_upgrade(sv, SVt_IV);
1083 sv_upgrade(sv, SVt_PVIV);
1086 sv_upgrade(sv, SVt_PVNV);
1090 if (SvNVX(sv) < 0.0)
1091 SvIVX(sv) = I_V(SvNVX(sv));
1093 SvIVX(sv) = (IV) U_V(SvNVX(sv));
1095 else if (SvPOKp(sv) && SvLEN(sv)) {
1096 if (dowarn && !looks_like_number(sv))
1098 SvIVX(sv) = (IV)atol(SvPVX(sv));
1101 if (dowarn && !localizing)
1106 DEBUG_c(fprintf(stderr,"0x%lx 2iv(%ld)\n",
1107 (unsigned long)sv,(long)SvIVX(sv)));
1117 if (SvGMAGICAL(sv)) {
1121 if (SvPOKp(sv) && SvLEN(sv)) {
1122 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1124 return atof(SvPVX(sv));
1127 return (double)SvIVX(sv);
1132 if (SvTHINKFIRST(sv)) {
1136 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1137 return SvNV(tmpstr);
1138 #endif /* OVERLOAD */
1139 return (double)(unsigned long)SvRV(sv);
1141 if (SvREADONLY(sv)) {
1142 if (SvPOKp(sv) && SvLEN(sv)) {
1143 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1145 return atof(SvPVX(sv));
1148 return (double)SvIVX(sv);
1154 if (SvTYPE(sv) < SVt_NV) {
1155 if (SvTYPE(sv) == SVt_IV)
1156 sv_upgrade(sv, SVt_PVNV);
1158 sv_upgrade(sv, SVt_NV);
1159 DEBUG_c(fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1161 else if (SvTYPE(sv) < SVt_PVNV)
1162 sv_upgrade(sv, SVt_PVNV);
1164 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1166 SvNVX(sv) = (double)SvIVX(sv);
1168 else if (SvPOKp(sv) && SvLEN(sv)) {
1169 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1171 SvNVX(sv) = atof(SvPVX(sv));
1174 if (dowarn && !localizing)
1179 DEBUG_c(fprintf(stderr,"0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1195 if (SvGMAGICAL(sv)) {
1202 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1206 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1214 if (SvTHINKFIRST(sv)) {
1218 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1219 return SvPV(tmpstr,*lp);
1220 #endif /* OVERLOAD */
1225 switch (SvTYPE(sv)) {
1234 case SVt_PVMG: s = "SCALAR"; break;
1235 case SVt_PVLV: s = "LVALUE"; break;
1236 case SVt_PVAV: s = "ARRAY"; break;
1237 case SVt_PVHV: s = "HASH"; break;
1238 case SVt_PVCV: s = "CODE"; break;
1239 case SVt_PVGV: s = "GLOB"; break;
1240 case SVt_PVFM: s = "FORMATLINE"; break;
1241 case SVt_PVIO: s = "FILEHANDLE"; break;
1242 default: s = "UNKNOWN"; break;
1245 sprintf(tokenbuf, "%s=%s(0x%lx)",
1246 HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
1248 sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
1254 if (SvREADONLY(sv)) {
1256 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1260 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1269 if (!SvUPGRADE(sv, SVt_PV))
1272 if (SvTYPE(sv) < SVt_PVNV)
1273 sv_upgrade(sv, SVt_PVNV);
1276 olderrno = errno; /* some Xenix systems wipe out errno here */
1278 if (SvNVX(sv) == 0.0)
1279 (void)strcpy(s,"0");
1282 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1284 #ifdef FIXNEGATIVEZERO
1285 if (*s == '-' && s[1] == '0' && !s[2])
1294 else if (SvIOKp(sv)) {
1295 if (SvTYPE(sv) < SVt_PVIV)
1296 sv_upgrade(sv, SVt_PVIV);
1299 olderrno = errno; /* some Xenix systems wipe out errno here */
1300 (void)sprintf(s,"%ld",(long)SvIVX(sv));
1305 if (dowarn && !localizing)
1311 *lp = s - SvPVX(sv);
1314 DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1318 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1319 /* Sneaky stuff here */
1322 sv = sv_newmortal();
1323 *lp = strlen(tokenbuf);
1324 sv_setpvn(sv, tokenbuf, *lp);
1330 #ifdef FIXNEGATIVEZERO
1331 if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2])
1332 strcpy(tokenbuf,"0");
1334 (void)SvUPGRADE(sv, SVt_PV);
1335 len = *lp = strlen(tokenbuf);
1336 s = SvGROW(sv, len + 1);
1338 (void)strcpy(s, tokenbuf);
1339 /* NO SvPOK_on(sv) here! */
1344 /* This function is only called on magical items */
1358 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1359 return SvTRUE(tmpsv);
1361 #endif /* OVERLOAD */
1362 return SvRV(sv) != 0;
1366 if ((Xpv = (XPV*)SvANY(sv)) &&
1367 (*Xpv->xpv_pv > '0' ||
1369 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1376 return SvIVX(sv) != 0;
1379 return SvNVX(sv) != 0.0;
1386 /* Note: sv_setsv() should not be called with a source string that needs
1387 * to be reused, since it may destroy the source string if it is marked
1396 register U32 sflags;
1402 if (SvTHINKFIRST(dstr)) {
1403 if (SvREADONLY(dstr) && curcop != &compiling)
1410 stype = SvTYPE(sstr);
1411 dtype = SvTYPE(dstr);
1415 #endif /* OVERLOAD */
1416 /* There's a lot of redundancy below but we're going for speed here */
1420 (void)SvOK_off(dstr);
1423 if (dtype <= SVt_PV) {
1425 sv_upgrade(dstr, SVt_IV);
1426 else if (dtype == SVt_NV)
1427 sv_upgrade(dstr, SVt_PVNV);
1428 else if (dtype <= SVt_PV)
1429 sv_upgrade(dstr, SVt_PVIV);
1433 if (dtype <= SVt_PVIV) {
1435 sv_upgrade(dstr, SVt_NV);
1436 else if (dtype == SVt_PVIV)
1437 sv_upgrade(dstr, SVt_PVNV);
1438 else if (dtype <= SVt_PV)
1439 sv_upgrade(dstr, SVt_PVNV);
1444 sv_upgrade(dstr, SVt_RV);
1448 sv_upgrade(dstr, SVt_PV);
1451 if (dtype < SVt_PVIV)
1452 sv_upgrade(dstr, SVt_PVIV);
1455 if (dtype < SVt_PVNV)
1456 sv_upgrade(dstr, SVt_PVNV);
1459 if (dtype <= SVt_PVGV) {
1460 if (dtype < SVt_PVGV) {
1461 char *name = GvNAME(sstr);
1462 STRLEN len = GvNAMELEN(sstr);
1463 sv_upgrade(dstr, SVt_PVGV);
1464 sv_magic(dstr, dstr, '*', name, len);
1465 GvSTASH(dstr) = GvSTASH(sstr);
1466 GvNAME(dstr) = savepvn(name, len);
1467 GvNAMELEN(dstr) = len;
1468 SvFAKE_on(dstr); /* can coerce to non-glob */
1470 (void)SvOK_off(dstr);
1479 GvGP(dstr) = gp_ref(GvGP(sstr));
1481 GvFLAGS(dstr) &= ~GVf_INTRO; /* one-shot flag */
1489 sv_upgrade(dstr, stype);
1490 if (SvGMAGICAL(sstr))
1494 sflags = SvFLAGS(sstr);
1496 if (sflags & SVf_ROK) {
1497 if (dtype >= SVt_PV) {
1498 if (dtype == SVt_PVGV) {
1499 SV *sref = SvREFCNT_inc(SvRV(sstr));
1501 int intro = GvFLAGS(dstr) & GVf_INTRO;
1505 GvGP(dstr)->gp_refcnt--;
1506 Newz(602,gp, 1, GP);
1509 GvSV(dstr) = NEWSV(72,0);
1510 GvLINE(dstr) = curcop->cop_line;
1512 GvFLAGS(dstr) &= ~GVf_INTRO; /* one-shot flag */
1515 switch (SvTYPE(sref)) {
1518 SAVESPTR(GvAV(dstr));
1520 dref = (SV*)GvAV(dstr);
1521 GvAV(dstr) = (AV*)sref;
1525 SAVESPTR(GvHV(dstr));
1527 dref = (SV*)GvHV(dstr);
1528 GvHV(dstr) = (HV*)sref;
1532 SAVESPTR(GvCV(dstr));
1534 CV* cv = GvCV(dstr);
1536 if (dowarn && cv && sref != dref &&
1537 !GvCVGEN((GV*)dstr) &&
1538 (CvROOT(cv) || CvXSUB(cv)) )
1539 warn("Subroutine %s redefined", GvENAME((GV*)dstr));
1541 GvFLAGS(dstr) |= GVf_IMPORTED;
1542 GvCV(dstr) = (CV*)sref;
1546 SAVESPTR(GvSV(dstr));
1548 dref = (SV*)GvSV(dstr);
1560 Safefree(SvPVX(dstr));
1561 SvLEN(dstr)=SvCUR(dstr)=0;
1564 (void)SvOK_off(dstr);
1565 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
1567 if (sflags & SVp_NOK) {
1569 SvNVX(dstr) = SvNVX(sstr);
1571 if (sflags & SVp_IOK) {
1572 (void)SvIOK_on(dstr);
1573 SvIVX(dstr) = SvIVX(sstr);
1576 if (SvAMAGIC(sstr)) {
1579 #endif /* OVERLOAD */
1581 else if (sflags & SVp_POK) {
1584 * Check to see if we can just swipe the string. If so, it's a
1585 * possible small lose on short strings, but a big win on long ones.
1586 * It might even be a win on short strings if SvPVX(dstr)
1587 * has to be allocated and SvPVX(sstr) has to be freed.
1590 if (SvTEMP(sstr)) { /* slated for free anyway? */
1591 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
1592 (void)SvOOK_off(dstr);
1593 Safefree(SvPVX(dstr));
1595 SvPV_set(dstr, SvPVX(sstr));
1596 SvLEN_set(dstr, SvLEN(sstr));
1597 SvCUR_set(dstr, SvCUR(sstr));
1598 (void)SvPOK_only(dstr);
1600 SvPV_set(sstr, Nullch);
1602 SvPOK_off(sstr); /* wipe out any weird flags */
1603 SvPVX(sstr) = 0; /* so sstr frees uneventfully */
1605 else { /* have to copy actual string */
1606 STRLEN len = SvCUR(sstr);
1608 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
1609 Move(SvPVX(sstr),SvPVX(dstr),len,char);
1610 SvCUR_set(dstr, len);
1611 *SvEND(dstr) = '\0';
1612 (void)SvPOK_only(dstr);
1615 if (sflags & SVp_NOK) {
1617 SvNVX(dstr) = SvNVX(sstr);
1619 if (sflags & SVp_IOK) {
1620 (void)SvIOK_on(dstr);
1621 SvIVX(dstr) = SvIVX(sstr);
1624 else if (sflags & SVp_NOK) {
1625 SvNVX(dstr) = SvNVX(sstr);
1626 (void)SvNOK_only(dstr);
1628 (void)SvIOK_on(dstr);
1629 SvIVX(dstr) = SvIVX(sstr);
1632 else if (sflags & SVp_IOK) {
1633 (void)SvIOK_only(dstr);
1634 SvIVX(dstr) = SvIVX(sstr);
1637 (void)SvOK_off(dstr);
1643 sv_setpvn(sv,ptr,len)
1646 register STRLEN len;
1649 if (SvTHINKFIRST(sv)) {
1650 if (SvREADONLY(sv) && curcop != &compiling)
1659 if (!SvUPGRADE(sv, SVt_PV))
1661 SvGROW(sv, len + 1);
1662 Move(ptr,SvPVX(sv),len,char);
1665 (void)SvPOK_only(sv); /* validate pointer */
1674 register STRLEN len;
1676 if (SvTHINKFIRST(sv)) {
1677 if (SvREADONLY(sv) && curcop != &compiling)
1687 if (!SvUPGRADE(sv, SVt_PV))
1689 SvGROW(sv, len + 1);
1690 Move(ptr,SvPVX(sv),len+1,char);
1692 (void)SvPOK_only(sv); /* validate pointer */
1697 sv_usepvn(sv,ptr,len)
1700 register STRLEN len;
1702 if (SvTHINKFIRST(sv)) {
1703 if (SvREADONLY(sv) && curcop != &compiling)
1708 if (!SvUPGRADE(sv, SVt_PV))
1715 Safefree(SvPVX(sv));
1716 Renew(ptr, len+1, char);
1719 SvLEN_set(sv, len+1);
1721 (void)SvPOK_only(sv); /* validate pointer */
1726 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
1730 register STRLEN delta;
1732 if (!ptr || !SvPOKp(sv))
1734 if (SvTHINKFIRST(sv)) {
1735 if (SvREADONLY(sv) && curcop != &compiling)
1740 if (SvTYPE(sv) < SVt_PVIV)
1741 sv_upgrade(sv,SVt_PVIV);
1745 SvFLAGS(sv) |= SVf_OOK;
1747 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
1748 delta = ptr - SvPVX(sv);
1756 sv_catpvn(sv,ptr,len)
1759 register STRLEN len;
1764 junk = SvPV_force(sv, tlen);
1765 SvGROW(sv, tlen + len + 1);
1766 Move(ptr,SvPVX(sv)+tlen,len,char);
1769 (void)SvPOK_only(sv); /* validate pointer */
1782 if (s = SvPV(sstr, len))
1783 sv_catpvn(dstr,s,len);
1791 register STRLEN len;
1797 junk = SvPV_force(sv, tlen);
1799 SvGROW(sv, tlen + len + 1);
1800 Move(ptr,SvPVX(sv)+tlen,len+1,char);
1802 (void)SvPOK_only(sv); /* validate pointer */
1822 sv_upgrade(sv, SVt_PV);
1823 SvGROW(sv, len + 1);
1829 sv_magic(sv, obj, how, name, namlen)
1838 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gB", how))
1840 if (SvMAGICAL(sv)) {
1841 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
1848 if (!SvUPGRADE(sv, SVt_PVMG))
1851 Newz(702,mg, 1, MAGIC);
1852 mg->mg_moremagic = SvMAGIC(sv);
1855 if (!obj || obj == sv || how == '#')
1858 mg->mg_obj = SvREFCNT_inc(obj);
1859 mg->mg_flags |= MGf_REFCOUNTED;
1862 mg->mg_len = namlen;
1863 if (name && namlen >= 0)
1864 mg->mg_ptr = savepvn(name, namlen);
1867 mg->mg_virtual = &vtbl_sv;
1871 mg->mg_virtual = &vtbl_amagic;
1874 mg->mg_virtual = &vtbl_amagicelem;
1879 #endif /* OVERLOAD */
1881 mg->mg_virtual = &vtbl_bm;
1884 mg->mg_virtual = &vtbl_env;
1887 mg->mg_virtual = &vtbl_envelem;
1890 mg->mg_virtual = &vtbl_mglob;
1893 mg->mg_virtual = &vtbl_isa;
1896 mg->mg_virtual = &vtbl_isaelem;
1903 mg->mg_virtual = &vtbl_dbline;
1906 mg->mg_virtual = &vtbl_pack;
1910 mg->mg_virtual = &vtbl_packelem;
1913 mg->mg_virtual = &vtbl_sig;
1916 mg->mg_virtual = &vtbl_sigelem;
1919 mg->mg_virtual = &vtbl_taint;
1923 mg->mg_virtual = &vtbl_uvar;
1926 mg->mg_virtual = &vtbl_vec;
1929 mg->mg_virtual = &vtbl_substr;
1932 mg->mg_virtual = &vtbl_glob;
1935 mg->mg_virtual = &vtbl_arylen;
1938 mg->mg_virtual = &vtbl_pos;
1940 case '~': /* reserved for extensions but multiple extensions may clash */
1943 croak("Don't know how to handle magic of type '%c'", how);
1947 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
1951 sv_unmagic(sv, type)
1960 for (mg = *mgp; mg; mg = *mgp) {
1961 if (mg->mg_type == type) {
1962 MGVTBL* vtbl = mg->mg_virtual;
1963 *mgp = mg->mg_moremagic;
1964 if (vtbl && vtbl->svt_free)
1965 (*vtbl->svt_free)(sv, mg);
1966 if (mg->mg_ptr && mg->mg_type != 'g')
1967 Safefree(mg->mg_ptr);
1968 if (mg->mg_flags & MGf_REFCOUNTED)
1969 SvREFCNT_dec(mg->mg_obj);
1973 mgp = &mg->mg_moremagic;
1977 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
1984 sv_insert(bigstr,offset,len,little,littlelen)
1993 register char *midend;
1994 register char *bigend;
1998 croak("Can't modify non-existent substring");
1999 SvPV_force(bigstr, na);
2001 i = littlelen - len;
2002 if (i > 0) { /* string might grow */
2003 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2004 mid = big + offset + len;
2005 midend = bigend = big + SvCUR(bigstr);
2008 while (midend > mid) /* shove everything down */
2009 *--bigend = *--midend;
2010 Move(little,big+offset,littlelen,char);
2016 Move(little,SvPVX(bigstr)+offset,len,char);
2021 big = SvPVX(bigstr);
2024 bigend = big + SvCUR(bigstr);
2026 if (midend > bigend)
2027 croak("panic: sv_insert");
2029 if (mid - big > bigend - midend) { /* faster to shorten from end */
2031 Move(little, mid, littlelen,char);
2034 i = bigend - midend;
2036 Move(midend, mid, i,char);
2040 SvCUR_set(bigstr, mid - big);
2043 else if (i = mid - big) { /* faster from front */
2044 midend -= littlelen;
2046 sv_chop(bigstr,midend-i);
2051 Move(little, mid, littlelen,char);
2053 else if (littlelen) {
2054 midend -= littlelen;
2055 sv_chop(bigstr,midend);
2056 Move(little,midend,littlelen,char);
2059 sv_chop(bigstr,midend);
2064 /* make sv point to what nstr did */
2071 U32 refcnt = SvREFCNT(sv);
2072 if (SvTHINKFIRST(sv)) {
2073 if (SvREADONLY(sv) && curcop != &compiling)
2078 if (SvREFCNT(nsv) != 1)
2079 warn("Reference miscount in sv_replace()");
2080 if (SvMAGICAL(sv)) {
2084 sv_upgrade(nsv, SVt_PVMG);
2085 SvMAGIC(nsv) = SvMAGIC(sv);
2086 SvFLAGS(nsv) |= SvMAGICAL(sv);
2092 StructCopy(nsv,sv,SV);
2093 SvREFCNT(sv) = refcnt;
2102 assert(SvREFCNT(sv) == 0);
2108 if (defstash) { /* Still have a symbol table? */
2109 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2112 SAVEFREESV(SvSTASH(sv));
2113 if (destructor && GvCV(destructor)) {
2117 sv_upgrade(&ref, SVt_RV);
2118 SAVEI32(SvREFCNT(sv));
2119 SvRV(&ref) = SvREFCNT_inc(sv);
2126 perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL);
2127 del_XRV(SvANY(&ref));
2132 SvOBJECT_off(sv); /* Curse the object. */
2133 if (SvTYPE(sv) != SVt_PVIO)
2134 --sv_objcount; /* XXX Might want something more general */
2139 switch (SvTYPE(sv)) {
2141 Safefree(IoTOP_NAME(sv));
2142 Safefree(IoFMT_NAME(sv));
2143 Safefree(IoBOTTOM_NAME(sv));
2159 Safefree(GvNAME(sv));
2166 (void)SvOOK_off(sv);
2171 SvREFCNT_dec(SvRV(sv));
2173 Safefree(SvPVX(sv));
2183 switch (SvTYPE(sv)) {
2199 del_XPVIV(SvANY(sv));
2202 del_XPVNV(SvANY(sv));
2205 del_XPVMG(SvANY(sv));
2208 del_XPVLV(SvANY(sv));
2211 del_XPVAV(SvANY(sv));
2214 del_XPVHV(SvANY(sv));
2217 del_XPVCV(SvANY(sv));
2220 del_XPVGV(SvANY(sv));
2223 del_XPVBM(SvANY(sv));
2226 del_XPVFM(SvANY(sv));
2229 del_XPVIO(SvANY(sv));
2232 SvFLAGS(sv) &= SVf_BREAK;
2233 SvFLAGS(sv) |= SVTYPEMASK;
2251 if (SvREADONLY(sv)) {
2252 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2255 if (SvREFCNT(sv) == 0) {
2256 if (SvFLAGS(sv) & SVf_BREAK)
2258 warn("Attempt to free unreferenced scalar");
2261 if (--SvREFCNT(sv) > 0)
2265 warn("Attempt to free temp prematurely");
2286 junk = SvPV(sv, len);
2305 pv1 = SvPV(str1, cur1);
2310 pv2 = SvPV(str2, cur2);
2315 return !bcmp(pv1, pv2, cur1);
2334 pv1 = SvPV(str1, cur1);
2341 pv2 = SvPV(str2, cur2);
2344 return cur2 ? -1 : 0;
2350 if (retval = memcmp((void*)pv1, (void*)pv2, cur1))
2351 return retval < 0 ? -1 : 1;
2356 else if (retval = memcmp((void*)pv1, (void*)pv2, cur2))
2357 return retval < 0 ? -1 : 1;
2358 else if (cur1 == cur2)
2365 sv_gets(sv,fp,append)
2370 register char *bp; /* we're going to steal some values */
2371 #ifdef USE_STDIO_PTR
2372 register I32 cnt; /* from the stdio struct and put EVERYTHING */
2373 register STDCHAR *ptr; /* in the innermost loop into registers */
2377 register I32 newline = rschar;/* (assuming >= 6 registers) */
2380 if (SvTHINKFIRST(sv)) {
2381 if (SvREADONLY(sv) && curcop != &compiling)
2386 if (!SvUPGRADE(sv, SVt_PV))
2388 if (rspara) { /* have to do this both before and after */
2389 do { /* to make sure file boundaries work right */
2401 #ifdef USE_STDIO_PTR /* Here is some breathtakingly efficient cheating */
2402 cnt = FILE_cnt(fp); /* get count into register */
2403 (void)SvPOK_only(sv); /* validate pointer */
2404 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
2405 if (cnt > 80 && SvLEN(sv) > append) {
2406 shortbuffered = cnt - SvLEN(sv) + append + 1;
2407 cnt -= shortbuffered;
2411 SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */
2416 bp = SvPVX(sv) + append; /* move these two too to registers */
2421 while (--cnt >= 0) { /* this */ /* eat */
2422 if ((*bp++ = *ptr++) == newline) /* really */ /* dust */
2423 goto thats_all_folks; /* screams */ /* sed :-) */
2427 if (shortbuffered) { /* oh well, must extend */
2428 cnt = shortbuffered;
2430 bpx = bp - SvPVX(sv); /* prepare for possible relocation */
2432 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
2433 bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
2437 FILE_cnt(fp) = cnt; /* deregisterize cnt and ptr */
2439 i = _filbuf(fp); /* get more characters */
2441 ptr = FILE_ptr(fp); /* reregisterize cnt and ptr */
2443 if (i == EOF) /* all done for ever? */
2444 goto thats_really_all_folks;
2446 bpx = bp - SvPVX(sv); /* prepare for possible relocation */
2448 SvGROW(sv, bpx + cnt + 2);
2449 bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
2451 if (i == newline) { /* all done for now? */
2453 goto thats_all_folks;
2455 *bp++ = i; /* now go back to screaming loop */
2459 if (rslen > 1 && (bp - SvPVX(sv) < rslen || bcmp(bp - rslen, rs, rslen)))
2460 goto screamer; /* go back to the fray */
2461 thats_really_all_folks:
2463 cnt += shortbuffered;
2464 FILE_cnt(fp) = cnt; /* put these back or we're in trouble */
2467 SvCUR_set(sv, bp - SvPVX(sv)); /* set length */
2469 #else /* !USE_STDIO_PTR */ /* The big, slow, and stupid way */
2473 register char * bpe = buf + sizeof(buf) - 3;
2477 while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ;
2480 sv_catpvn(sv, buf, bp - buf);
2482 sv_setpvn(sv, buf, bp - buf);
2483 if (i != EOF /* joy */
2491 bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rs, rslen)
2502 #endif /* USE_STDIO_PTR */
2513 return SvCUR(sv) - append ? SvPVX(sv) : Nullch;
2525 if (SvTHINKFIRST(sv)) {
2526 if (SvREADONLY(sv) && curcop != &compiling)
2530 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
2531 #endif /* OVERLOAD */
2537 flags = SvFLAGS(sv);
2538 if (flags & SVp_IOK) {
2540 (void)SvIOK_only(sv);
2543 if (flags & SVp_NOK) {
2545 (void)SvNOK_only(sv);
2548 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
2549 sv_upgrade(sv, SVt_NV);
2551 (void)SvNOK_only(sv);
2555 while (isALPHA(*d)) d++;
2556 while (isDIGIT(*d)) d++;
2558 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
2562 while (d >= SvPVX(sv)) {
2572 *(d--) -= 'z' - 'a' + 1;
2575 /* oh,oh, the number grew */
2576 SvGROW(sv, SvCUR(sv) + 2);
2578 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
2594 if (SvTHINKFIRST(sv)) {
2595 if (SvREADONLY(sv) && curcop != &compiling)
2599 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
2600 #endif /* OVERLOAD */
2606 flags = SvFLAGS(sv);
2607 if (flags & SVp_IOK) {
2609 (void)SvIOK_only(sv);
2612 if (flags & SVp_NOK) {
2614 (void)SvNOK_only(sv);
2617 if (!(flags & SVp_POK)) {
2618 sv_upgrade(sv, SVt_NV);
2620 (void)SvNOK_only(sv);
2623 sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
2626 /* Make a string that will exist for the duration of the expression
2627 * evaluation. Actually, it may have to last longer than that, but
2628 * hopefully we won't free it until it has been assigned to a
2629 * permanent location. */
2635 Renew(tmps_stack, tmps_max, SV*);
2639 sv_mortalcopy(oldstr)
2648 sv_setsv(sv,oldstr);
2649 if (++tmps_ix >= tmps_max)
2651 tmps_stack[tmps_ix] = sv;
2664 SvFLAGS(sv) = SVs_TEMP;
2665 if (++tmps_ix >= tmps_max)
2667 tmps_stack[tmps_ix] = sv;
2671 /* same thing without the copying */
2679 if (SvREADONLY(sv) && curcop != &compiling)
2681 if (++tmps_ix >= tmps_max)
2683 tmps_stack[tmps_ix] = sv;
2701 sv_setpvn(sv,s,len);
2743 sv_upgrade(sv, SVt_RV);
2745 SvRV(sv) = SvREFCNT_inc(ref);
2750 /* make an exact duplicate of old */
2760 if (SvTYPE(old) == SVTYPEMASK) {
2761 warn("semi-panic: attempt to dup freed string");
2791 if (!*s) { /* reset ?? searches */
2792 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
2793 pm->op_pmflags &= ~PMf_USED;
2798 /* reset variables */
2800 if (!HvARRAY(stash))
2803 Zero(todo, 256, char);
2810 for ( ; i <= max; i++) {
2813 for (i = 0; i <= (I32) HvMAX(stash); i++) {
2814 for (entry = HvARRAY(stash)[i];
2816 entry = entry->hent_next) {
2817 if (!todo[(U8)*entry->hent_key])
2819 gv = (GV*)entry->hent_val;
2822 if (SvTYPE(sv) >= SVt_PV) {
2825 if (SvPVX(sv) != Nullch)
2832 if (HvNAME(GvHV(gv)))
2835 #ifndef VMS /* VMS has no environ array */
2837 environ[0] = Nullch;
2846 sv_2cv(sv, st, gvp, lref)
2856 return *gvp = Nullgv, Nullcv;
2857 switch (SvTYPE(sv)) {
2877 if (SvTYPE(cv) != SVt_PVCV)
2878 croak("Not a subroutine reference");
2886 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
2892 if (lref && !GvCV(gv)) {
2895 gv_efullname(sv, gv);
2896 newSUB(start_subparse(),
2897 newSVOP(OP_CONST, 0, sv),
2916 if ((Xpv = (XPV*)SvANY(sv)) &&
2917 (*Xpv->xpv_pv > '0' ||
2919 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
2926 return SvIVX(sv) != 0;
2929 return SvNVX(sv) != 0.0;
2931 return sv_2bool(sv);
2955 return (double)SvIVX(Sv);
2970 return sv_2pv(sv, lp);
2975 sv_pvn_force(sv, lp)
2981 if (SvREADONLY(sv) && curcop != &compiling)
2988 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
2992 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
2993 op_name[op->op_type]);
2996 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3001 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3002 SvGROW(sv, len + 1);
3003 Move(s,SvPVX(sv),len,char);
3008 SvPOK_on(sv); /* validate pointer */
3010 DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",
3011 (unsigned long)sv,SvPVX(sv)));
3022 if (ob && SvOBJECT(sv))
3023 return HvNAME(SvSTASH(sv));
3025 switch (SvTYPE(sv)) {
3039 case SVt_PVLV: return "LVALUE";
3040 case SVt_PVAV: return "ARRAY";
3041 case SVt_PVHV: return "HASH";
3042 case SVt_PVCV: return "CODE";
3043 case SVt_PVGV: return "GLOB";
3044 case SVt_PVFM: return "FORMLINE";
3045 default: return "UNKNOWN";
3073 return strEQ(HvNAME(SvSTASH(sv)), name);
3077 newSVrv(rv, classname)
3087 sv_upgrade(rv, SVt_RV);
3088 SvRV(rv) = SvREFCNT_inc(sv);
3092 HV* stash = gv_stashpv(classname, TRUE);
3093 (void)sv_bless(rv, stash);
3099 sv_setref_pv(rv, classname, pv)
3105 sv_setsv(rv, &sv_undef);
3107 sv_setiv(newSVrv(rv,classname), (IV)pv);
3112 sv_setref_iv(rv, classname, iv)
3117 sv_setiv(newSVrv(rv,classname), iv);
3122 sv_setref_nv(rv, classname, nv)
3127 sv_setnv(newSVrv(rv,classname), nv);
3132 sv_setref_pvn(rv, classname, pv, n)
3138 sv_setpvn(newSVrv(rv,classname), pv, n);
3149 croak("Can't bless non-reference value");
3151 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
3152 if (SvREADONLY(ref))
3154 if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO)
3159 (void)SvUPGRADE(ref, SVt_PVMG);
3160 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
3164 if (Gv_AMG(stash)) {
3167 #endif /* OVERLOAD */
3176 assert(SvTYPE(sv) == SVt_PVGV);
3180 sv_unmagic(sv, '*');
3181 Safefree(GvNAME(sv));
3182 SvFLAGS(sv) &= ~SVTYPEMASK;
3183 SvFLAGS(sv) |= SVt_PVMG;
3208 fprintf(stderr, "SV = 0\n");
3212 flags = SvFLAGS(sv);
3215 sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
3216 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
3218 if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,");
3219 if (flags & SVs_PADTMP) strcat(d, "PADTMP,");
3220 if (flags & SVs_PADMY) strcat(d, "PADMY,");
3221 if (flags & SVs_TEMP) strcat(d, "TEMP,");
3222 if (flags & SVs_OBJECT) strcat(d, "OBJECT,");
3223 if (flags & SVs_GMG) strcat(d, "GMG,");
3224 if (flags & SVs_SMG) strcat(d, "SMG,");
3225 if (flags & SVs_RMG) strcat(d, "RMG,");
3228 if (flags & SVf_IOK) strcat(d, "IOK,");
3229 if (flags & SVf_NOK) strcat(d, "NOK,");
3230 if (flags & SVf_POK) strcat(d, "POK,");
3231 if (flags & SVf_ROK) strcat(d, "ROK,");
3232 if (flags & SVf_OOK) strcat(d, "OOK,");
3233 if (flags & SVf_FAKE) strcat(d, "FAKE,");
3234 if (flags & SVf_READONLY) strcat(d, "READONLY,");
3237 if (flags & SVp_IOK) strcat(d, "pIOK,");
3238 if (flags & SVp_NOK) strcat(d, "pNOK,");
3239 if (flags & SVp_POK) strcat(d, "pPOK,");
3240 if (flags & SVp_SCREAM) strcat(d, "SCREAM,");
3247 fprintf(stderr, "SV = ");
3250 fprintf(stderr,"NULL%s\n", tmpbuf);
3253 fprintf(stderr,"IV%s\n", tmpbuf);
3256 fprintf(stderr,"NV%s\n", tmpbuf);
3259 fprintf(stderr,"RV%s\n", tmpbuf);
3262 fprintf(stderr,"PV%s\n", tmpbuf);
3265 fprintf(stderr,"PVIV%s\n", tmpbuf);
3268 fprintf(stderr,"PVNV%s\n", tmpbuf);
3271 fprintf(stderr,"PVBM%s\n", tmpbuf);
3274 fprintf(stderr,"PVMG%s\n", tmpbuf);
3277 fprintf(stderr,"PVLV%s\n", tmpbuf);
3280 fprintf(stderr,"PVAV%s\n", tmpbuf);
3283 fprintf(stderr,"PVHV%s\n", tmpbuf);
3286 fprintf(stderr,"PVCV%s\n", tmpbuf);
3289 fprintf(stderr,"PVGV%s\n", tmpbuf);
3292 fprintf(stderr,"PVFM%s\n", tmpbuf);
3295 fprintf(stderr,"PVIO%s\n", tmpbuf);
3298 fprintf(stderr,"UNKNOWN%s\n", tmpbuf);
3301 if (type >= SVt_PVIV || type == SVt_IV)
3302 fprintf(stderr, " IV = %ld\n", (long)SvIVX(sv));
3303 if (type >= SVt_PVNV || type == SVt_NV)
3304 fprintf(stderr, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
3306 fprintf(stderr, " RV = 0x%lx\n", (long)SvRV(sv));
3312 if (type <= SVt_PVLV) {
3314 fprintf(stderr, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
3315 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
3317 fprintf(stderr, " PV = 0\n");
3319 if (type >= SVt_PVMG) {
3321 fprintf(stderr, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
3324 fprintf(stderr, " STASH = %s\n", HvNAME(SvSTASH(sv)));
3328 fprintf(stderr, " TYPE = %c\n", LvTYPE(sv));
3329 fprintf(stderr, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
3330 fprintf(stderr, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
3331 fprintf(stderr, " TARG = 0x%lx\n", (long)LvTARG(sv));
3332 sv_dump(LvTARG(sv));
3335 fprintf(stderr, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
3336 fprintf(stderr, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
3337 fprintf(stderr, " FILL = %ld\n", (long)AvFILL(sv));
3338 fprintf(stderr, " MAX = %ld\n", (long)AvMAX(sv));
3339 fprintf(stderr, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
3341 fprintf(stderr, " FLAGS = (REAL)\n");
3343 fprintf(stderr, " FLAGS = ()\n");
3346 fprintf(stderr, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
3347 fprintf(stderr, " KEYS = %ld\n", (long)HvKEYS(sv));
3348 fprintf(stderr, " FILL = %ld\n", (long)HvFILL(sv));
3349 fprintf(stderr, " MAX = %ld\n", (long)HvMAX(sv));
3350 fprintf(stderr, " RITER = %ld\n", (long)HvRITER(sv));
3351 fprintf(stderr, " EITER = 0x%lx\n",(long) HvEITER(sv));
3353 fprintf(stderr, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
3355 fprintf(stderr, " NAME = \"%s\"\n", HvNAME(sv));
3359 fprintf(stderr, " STASH = 0x%lx\n", (long)CvSTASH(sv));
3360 fprintf(stderr, " START = 0x%lx\n", (long)CvSTART(sv));
3361 fprintf(stderr, " ROOT = 0x%lx\n", (long)CvROOT(sv));
3362 fprintf(stderr, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
3363 fprintf(stderr, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
3364 fprintf(stderr, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
3365 fprintf(stderr, " DEPTH = %ld\n", (long)CvDEPTH(sv));
3366 fprintf(stderr, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
3367 fprintf(stderr, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
3368 if (type == SVt_PVFM)
3369 fprintf(stderr, " LINES = %ld\n", (long)FmLINES(sv));
3372 fprintf(stderr, " NAME = %s\n", GvNAME(sv));
3373 fprintf(stderr, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
3374 fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
3375 fprintf(stderr, " GP = 0x%lx\n", (long)GvGP(sv));
3376 fprintf(stderr, " SV = 0x%lx\n", (long)GvSV(sv));
3377 fprintf(stderr, " REFCNT = %ld\n", (long)GvREFCNT(sv));
3378 fprintf(stderr, " IO = 0x%lx\n", (long)GvIOp(sv));
3379 fprintf(stderr, " FORM = 0x%lx\n", (long)GvFORM(sv));
3380 fprintf(stderr, " AV = 0x%lx\n", (long)GvAV(sv));
3381 fprintf(stderr, " HV = 0x%lx\n", (long)GvHV(sv));
3382 fprintf(stderr, " CV = 0x%lx\n", (long)GvCV(sv));
3383 fprintf(stderr, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
3384 fprintf(stderr, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
3385 fprintf(stderr, " LINE = %ld\n", (long)GvLINE(sv));
3386 fprintf(stderr, " FLAGS = 0x%x\n", (int)GvFLAGS(sv));
3387 fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
3388 fprintf(stderr, " EGV = 0x%lx\n", (long)GvEGV(sv));
3391 fprintf(stderr, " IFP = 0x%lx\n", (long)IoIFP(sv));
3392 fprintf(stderr, " OFP = 0x%lx\n", (long)IoOFP(sv));
3393 fprintf(stderr, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
3394 fprintf(stderr, " LINES = %ld\n", (long)IoLINES(sv));
3395 fprintf(stderr, " PAGE = %ld\n", (long)IoPAGE(sv));
3396 fprintf(stderr, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
3397 fprintf(stderr, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
3398 fprintf(stderr, " TOP_NAME = %s\n", IoTOP_NAME(sv));
3399 fprintf(stderr, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
3400 fprintf(stderr, " FMT_NAME = %s\n", IoFMT_NAME(sv));
3401 fprintf(stderr, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
3402 fprintf(stderr, " BOTTOM_NAME = %s\n", IoBOTTOM_NAME(sv));
3403 fprintf(stderr, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
3404 fprintf(stderr, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
3405 fprintf(stderr, " TYPE = %c\n", IoTYPE(sv));
3406 fprintf(stderr, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
3425 switch (SvTYPE(sv)) {
3433 croak("Bad filehandle: %s", GvNAME(gv));
3437 croak(no_usym, "filehandle");
3439 return sv_2io(SvRV(sv));
3440 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3446 croak("Bad filehandle: %s", SvPV(sv,na));