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); \
72 sv_root = (SV*)SvANY(sv);
84 SvANY(p) = (void *)sv_root; \
97 for (sv = sv_arenaroot; sv; sv = (SV *) SvANY(svend)) {
98 svend = &sv[1008 / sizeof(SV)];
99 if (p >= sv && p < svend)
103 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
107 SvANY(p) = (void *) sv_root;
113 SvANY(p) = (void *)sv_root; \
124 sv_root = (SV*)safemalloc(1012);
126 Zero(sv, 1012, char);
127 svend = &sv[1008 / sizeof(SV) - 1];
129 SvANY(sv) = (void *)(SV*)(sv + 1);
130 SvFLAGS(sv) = SVTYPEMASK;
135 SvANY(sv) = (void *) sv_arenaroot;
136 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;
503 del_XPVIV(SvANY(sv));
514 del_XPVNV(SvANY(sv));
524 del_XPVMG(SvANY(sv));
527 croak("Can't upgrade that kind of scalar");
532 croak("Can't upgrade to undef");
534 SvANY(sv) = new_XIV();
538 SvANY(sv) = new_XNV();
542 SvANY(sv) = new_XRV();
546 SvANY(sv) = new_XPV();
552 SvANY(sv) = new_XPVIV();
562 SvANY(sv) = new_XPVNV();
570 SvANY(sv) = new_XPVMG();
580 SvANY(sv) = new_XPVLV();
594 SvANY(sv) = new_XPVAV();
609 SvANY(sv) = new_XPVHV();
625 SvANY(sv) = new_XPVCV();
637 CvXSUBANY(sv).any_ptr = 0;
644 SvANY(sv) = new_XPVGV();
658 SvANY(sv) = new_XPVBM();
671 SvANY(sv) = new_XPVFM();
682 SvANY(sv) = new_XPVIO();
701 IoBOTTOM_NAME(sv)= 0;
708 SvFLAGS(sv) &= ~SVTYPEMASK;
726 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
730 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
731 if (sv == &sv_undef) {
732 strcpy(t, "SV_UNDEF");
733 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
734 SVs_GMG|SVs_SMG|SVs_RMG)) &&
738 else if (sv == &sv_no) {
740 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
741 SVs_GMG|SVs_SMG|SVs_RMG)) &&
742 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
750 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
751 SVs_GMG|SVs_SMG|SVs_RMG)) &&
752 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
755 SvPVX(sv) && *SvPVX(sv) == '1' &&
762 else if (SvREFCNT(sv) == 0) {
768 if (t - tokenbuf + unref > 10) {
769 strcpy(tokenbuf + unref + 3,"...");
775 switch (SvTYPE(sv)) {
815 sprintf(t, "CV(%s)", GvNAME(CvGV(sv)));
838 sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
840 sprintf(t,"(\"%.127s\")",SvPVX(sv));
843 sprintf(t,"(%g)",SvNVX(sv));
845 sprintf(t,"(%ld)",(long)SvIVX(sv));
867 SvLEN(sv) += SvIVX(sv);
868 SvPVX(sv) -= SvIVX(sv);
870 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
872 SvFLAGS(sv) &= ~SVf_OOK;
882 unsigned long newlen;
888 if (newlen >= 0x10000) {
889 fprintf(stderr, "Allocation too large: %lx\n", newlen);
895 if (SvTYPE(sv) < SVt_PV) {
896 sv_upgrade(sv, SVt_PV);
899 else if (SvOOK(sv)) { /* pv is offset? */
902 if (newlen > SvLEN(sv))
903 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
907 if (newlen > SvLEN(sv)) { /* need more room? */
909 Renew(s,newlen,char);
911 New(703,s,newlen,char);
913 SvLEN_set(sv, newlen);
923 if (SvTHINKFIRST(sv)) {
924 if (SvREADONLY(sv) && curcop != &compiling)
929 switch (SvTYPE(sv)) {
931 sv_upgrade(sv, SVt_IV);
934 sv_upgrade(sv, SVt_PVNV);
938 sv_upgrade(sv, SVt_PVIV);
952 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
953 op_name[op->op_type]);
956 (void)SvIOK_only(sv); /* validate number */
965 if (SvTHINKFIRST(sv)) {
966 if (SvREADONLY(sv) && curcop != &compiling)
971 switch (SvTYPE(sv)) {
974 sv_upgrade(sv, SVt_NV);
980 sv_upgrade(sv, SVt_PVNV);
1000 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1001 op_name[op->op_type]);
1004 (void)SvNOK_only(sv); /* validate number */
1017 for (s = SvPVX(sv), i = 50; *s && i; s++,i--) {
1019 if (ch & 128 && !isprint(ch)) {
1039 warn("Argument \"%s\" isn't numeric for %s", tmpbuf,
1040 op_name[op->op_type]);
1042 warn("Argument \"%s\" isn't numeric", tmpbuf);
1051 if (SvGMAGICAL(sv)) {
1056 return I_V(SvNVX(sv));
1057 if (SvPOKp(sv) && SvLEN(sv)) {
1058 if (dowarn && !looks_like_number(sv))
1060 return (IV)atol(SvPVX(sv));
1064 if (SvTHINKFIRST(sv)) {
1068 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1069 return SvIV(tmpstr);
1070 #endif /* OVERLOAD */
1071 return (IV)SvRV(sv);
1073 if (SvREADONLY(sv)) {
1075 return I_V(SvNVX(sv));
1076 if (SvPOK(sv) && SvLEN(sv)) {
1077 if (dowarn && !looks_like_number(sv))
1079 return (IV)atol(SvPVX(sv));
1086 switch (SvTYPE(sv)) {
1088 sv_upgrade(sv, SVt_IV);
1091 sv_upgrade(sv, SVt_PVIV);
1094 sv_upgrade(sv, SVt_PVNV);
1098 SvIVX(sv) = I_V(SvNVX(sv));
1099 else if (SvPOK(sv) && SvLEN(sv)) {
1100 if (dowarn && !looks_like_number(sv))
1102 SvIVX(sv) = (IV)atol(SvPVX(sv));
1105 if (dowarn && !localizing)
1110 DEBUG_c(fprintf(stderr,"0x%lx 2iv(%ld)\n",
1111 (unsigned long)sv,(long)SvIVX(sv)));
1121 if (SvGMAGICAL(sv)) {
1125 if (SvPOKp(sv) && SvLEN(sv)) {
1126 if (dowarn && !SvIOK(sv) && !looks_like_number(sv))
1128 return atof(SvPVX(sv));
1131 return (double)SvIVX(sv);
1134 if (SvTHINKFIRST(sv)) {
1138 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1139 return SvNV(tmpstr);
1140 #endif /* OVERLOAD */
1141 return (double)(unsigned long)SvRV(sv);
1143 if (SvREADONLY(sv)) {
1144 if (SvPOK(sv) && SvLEN(sv)) {
1145 if (dowarn && !SvIOK(sv) && !looks_like_number(sv))
1147 return atof(SvPVX(sv));
1150 return (double)SvIVX(sv);
1156 if (SvTYPE(sv) < SVt_NV) {
1157 if (SvTYPE(sv) == SVt_IV)
1158 sv_upgrade(sv, SVt_PVNV);
1160 sv_upgrade(sv, SVt_NV);
1161 DEBUG_c(fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1163 else if (SvTYPE(sv) < SVt_PVNV)
1164 sv_upgrade(sv, SVt_PVNV);
1166 (!SvPOK(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1168 SvNVX(sv) = (double)SvIVX(sv);
1170 else if (SvPOK(sv) && SvLEN(sv)) {
1171 if (dowarn && !SvIOK(sv) && !looks_like_number(sv))
1173 SvNVX(sv) = atof(SvPVX(sv));
1176 if (dowarn && !localizing)
1181 DEBUG_c(fprintf(stderr,"0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1197 if (SvGMAGICAL(sv)) {
1204 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1208 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 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1260 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
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 (SvIOK(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 */
1488 sv_upgrade(dstr, stype);
1489 if (SvGMAGICAL(sstr))
1493 sflags = SvFLAGS(sstr);
1495 if (sflags & SVf_ROK) {
1496 if (dtype >= SVt_PV) {
1497 if (dtype == SVt_PVGV) {
1498 SV *sref = SvREFCNT_inc(SvRV(sstr));
1500 int intro = GvFLAGS(dstr) & GVf_INTRO;
1504 GvGP(dstr)->gp_refcnt--;
1505 Newz(602,gp, 1, GP);
1508 GvSV(dstr) = NEWSV(72,0);
1509 GvLINE(dstr) = curcop->cop_line;
1511 GvFLAGS(dstr) &= ~GVf_INTRO; /* one-shot flag */
1514 switch (SvTYPE(sref)) {
1517 SAVESPTR(GvAV(dstr));
1519 dref = (SV*)GvAV(dstr);
1520 GvAV(dstr) = (AV*)sref;
1524 SAVESPTR(GvHV(dstr));
1526 dref = (SV*)GvHV(dstr);
1527 GvHV(dstr) = (HV*)sref;
1531 SAVESPTR(GvCV(dstr));
1533 dref = (SV*)GvCV(dstr);
1534 GvFLAGS(dstr) |= GVf_IMPORTED;
1535 GvCV(dstr) = (CV*)sref;
1539 SAVESPTR(GvSV(dstr));
1541 dref = (SV*)GvSV(dstr);
1553 Safefree(SvPVX(dstr));
1554 SvLEN(dstr)=SvCUR(dstr)=0;
1557 (void)SvOK_off(dstr);
1558 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
1560 if (sflags & SVp_NOK) {
1562 SvNVX(dstr) = SvNVX(sstr);
1564 if (sflags & SVp_IOK) {
1565 (void)SvIOK_on(dstr);
1566 SvIVX(dstr) = SvIVX(sstr);
1569 if (SvAMAGIC(sstr)) {
1572 #endif /* OVERLOAD */
1574 else if (sflags & SVp_POK) {
1577 * Check to see if we can just swipe the string. If so, it's a
1578 * possible small lose on short strings, but a big win on long ones.
1579 * It might even be a win on short strings if SvPVX(dstr)
1580 * has to be allocated and SvPVX(sstr) has to be freed.
1583 if (SvTEMP(sstr)) { /* slated for free anyway? */
1585 (void)SvOOK_off(dstr);
1586 Safefree(SvPVX(dstr));
1588 SvPV_set(dstr, SvPVX(sstr));
1589 SvLEN_set(dstr, SvLEN(sstr));
1590 SvCUR_set(dstr, SvCUR(sstr));
1591 (void)SvPOK_only(dstr);
1593 SvPV_set(sstr, Nullch);
1595 SvPOK_off(sstr); /* wipe out any weird flags */
1596 SvPVX(sstr) = 0; /* so sstr frees uneventfully */
1598 else { /* have to copy actual string */
1599 STRLEN len = SvCUR(sstr);
1601 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
1602 Move(SvPVX(sstr),SvPVX(dstr),len,char);
1603 SvCUR_set(dstr, len);
1604 *SvEND(dstr) = '\0';
1605 (void)SvPOK_only(dstr);
1608 if (sflags & SVp_NOK) {
1610 SvNVX(dstr) = SvNVX(sstr);
1612 if (sflags & SVp_IOK) {
1613 (void)SvIOK_on(dstr);
1614 SvIVX(dstr) = SvIVX(sstr);
1617 else if (sflags & SVp_NOK) {
1618 SvNVX(dstr) = SvNVX(sstr);
1619 (void)SvNOK_only(dstr);
1621 (void)SvIOK_on(dstr);
1622 SvIVX(dstr) = SvIVX(sstr);
1625 else if (sflags & SVp_IOK) {
1626 (void)SvIOK_only(dstr);
1627 SvIVX(dstr) = SvIVX(sstr);
1630 (void)SvOK_off(dstr);
1632 if (SvOBJECT(sstr)) {
1634 SvSTASH(dstr) = (HV*)SvREFCNT_inc(SvSTASH(sstr));
1640 sv_setpvn(sv,ptr,len)
1643 register STRLEN len;
1645 if (SvTHINKFIRST(sv)) {
1646 if (SvREADONLY(sv) && curcop != &compiling)
1655 if (!SvUPGRADE(sv, SVt_PV))
1657 SvGROW(sv, len + 1);
1658 Move(ptr,SvPVX(sv),len,char);
1661 (void)SvPOK_only(sv); /* validate pointer */
1670 register STRLEN len;
1672 if (SvTHINKFIRST(sv)) {
1673 if (SvREADONLY(sv) && curcop != &compiling)
1683 if (!SvUPGRADE(sv, SVt_PV))
1685 SvGROW(sv, len + 1);
1686 Move(ptr,SvPVX(sv),len+1,char);
1688 (void)SvPOK_only(sv); /* validate pointer */
1693 sv_usepvn(sv,ptr,len)
1696 register STRLEN len;
1698 if (SvTHINKFIRST(sv)) {
1699 if (SvREADONLY(sv) && curcop != &compiling)
1704 if (!SvUPGRADE(sv, SVt_PV))
1711 Safefree(SvPVX(sv));
1712 Renew(ptr, len+1, char);
1715 SvLEN_set(sv, len+1);
1717 (void)SvPOK_only(sv); /* validate pointer */
1722 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
1726 register STRLEN delta;
1728 if (!ptr || !SvPOKp(sv))
1730 if (SvTHINKFIRST(sv)) {
1731 if (SvREADONLY(sv) && curcop != &compiling)
1736 if (SvTYPE(sv) < SVt_PVIV)
1737 sv_upgrade(sv,SVt_PVIV);
1741 SvFLAGS(sv) |= SVf_OOK;
1743 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
1744 delta = ptr - SvPVX(sv);
1752 sv_catpvn(sv,ptr,len)
1755 register STRLEN len;
1760 s = SvPV_force(sv, tlen);
1761 SvGROW(sv, tlen + len + 1);
1762 Move(ptr,SvPVX(sv)+tlen,len,char);
1765 (void)SvPOK_only(sv); /* validate pointer */
1778 if (s = SvPV(sstr, len))
1779 sv_catpvn(dstr,s,len);
1787 register STRLEN len;
1793 s = SvPV_force(sv, tlen);
1795 SvGROW(sv, tlen + len + 1);
1796 Move(ptr,SvPVX(sv)+tlen,len+1,char);
1798 (void)SvPOK_only(sv); /* validate pointer */
1818 sv_upgrade(sv, SVt_PV);
1819 SvGROW(sv, len + 1);
1825 sv_magic(sv, obj, how, name, namlen)
1834 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gB", how))
1836 if (SvMAGICAL(sv)) {
1837 if (SvMAGIC(sv) && mg_find(sv, how))
1841 if (!SvUPGRADE(sv, SVt_PVMG))
1844 Newz(702,mg, 1, MAGIC);
1845 mg->mg_moremagic = SvMAGIC(sv);
1848 if (obj == sv || how == '#')
1851 mg->mg_obj = SvREFCNT_inc(obj);
1852 mg->mg_flags |= MGf_REFCOUNTED;
1855 mg->mg_len = namlen;
1856 if (name && namlen >= 0)
1857 mg->mg_ptr = savepvn(name, namlen);
1860 mg->mg_virtual = &vtbl_sv;
1864 mg->mg_virtual = &vtbl_amagic;
1867 mg->mg_virtual = &vtbl_amagicelem;
1872 #endif /* OVERLOAD */
1874 mg->mg_virtual = &vtbl_bm;
1877 mg->mg_virtual = &vtbl_env;
1880 mg->mg_virtual = &vtbl_envelem;
1883 mg->mg_virtual = &vtbl_mglob;
1886 mg->mg_virtual = &vtbl_isa;
1889 mg->mg_virtual = &vtbl_isaelem;
1896 mg->mg_virtual = &vtbl_dbline;
1899 mg->mg_virtual = &vtbl_pack;
1903 mg->mg_virtual = &vtbl_packelem;
1906 mg->mg_virtual = &vtbl_sig;
1909 mg->mg_virtual = &vtbl_sigelem;
1912 mg->mg_virtual = &vtbl_taint;
1915 mg->mg_virtual = &vtbl_uvar;
1918 mg->mg_virtual = &vtbl_vec;
1921 mg->mg_virtual = &vtbl_substr;
1924 mg->mg_virtual = &vtbl_glob;
1927 mg->mg_virtual = &vtbl_arylen;
1930 mg->mg_virtual = &vtbl_pos;
1932 case '~': /* reserved for extensions but multiple extensions may clash */
1935 croak("Don't know how to handle magic of type '%c'", how);
1939 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
1943 sv_unmagic(sv, type)
1952 for (mg = *mgp; mg; mg = *mgp) {
1953 if (mg->mg_type == type) {
1954 MGVTBL* vtbl = mg->mg_virtual;
1955 *mgp = mg->mg_moremagic;
1956 if (vtbl && vtbl->svt_free)
1957 (*vtbl->svt_free)(sv, mg);
1958 if (mg->mg_ptr && mg->mg_type != 'g')
1959 Safefree(mg->mg_ptr);
1960 if (mg->mg_flags & MGf_REFCOUNTED)
1961 SvREFCNT_dec(mg->mg_obj);
1965 mgp = &mg->mg_moremagic;
1969 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
1976 sv_insert(bigstr,offset,len,little,littlelen)
1985 register char *midend;
1986 register char *bigend;
1990 croak("Can't modify non-existent substring");
1991 SvPV_force(bigstr, na);
1993 i = littlelen - len;
1994 if (i > 0) { /* string might grow */
1995 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
1996 mid = big + offset + len;
1997 midend = bigend = big + SvCUR(bigstr);
2000 while (midend > mid) /* shove everything down */
2001 *--bigend = *--midend;
2002 Move(little,big+offset,littlelen,char);
2008 Move(little,SvPVX(bigstr)+offset,len,char);
2013 big = SvPVX(bigstr);
2016 bigend = big + SvCUR(bigstr);
2018 if (midend > bigend)
2019 croak("panic: sv_insert");
2021 if (mid - big > bigend - midend) { /* faster to shorten from end */
2023 Move(little, mid, littlelen,char);
2026 i = bigend - midend;
2028 Move(midend, mid, i,char);
2032 SvCUR_set(bigstr, mid - big);
2035 else if (i = mid - big) { /* faster from front */
2036 midend -= littlelen;
2038 sv_chop(bigstr,midend-i);
2043 Move(little, mid, littlelen,char);
2045 else if (littlelen) {
2046 midend -= littlelen;
2047 sv_chop(bigstr,midend);
2048 Move(little,midend,littlelen,char);
2051 sv_chop(bigstr,midend);
2056 /* make sv point to what nstr did */
2063 U32 refcnt = SvREFCNT(sv);
2064 if (SvTHINKFIRST(sv)) {
2065 if (SvREADONLY(sv) && curcop != &compiling)
2070 if (SvREFCNT(nsv) != 1)
2071 warn("Reference miscount in sv_replace()");
2072 if (SvMAGICAL(sv)) {
2076 sv_upgrade(nsv, SVt_PVMG);
2077 SvMAGIC(nsv) = SvMAGIC(sv);
2078 SvFLAGS(nsv) |= SvMAGICAL(sv);
2084 StructCopy(nsv,sv,SV);
2085 SvREFCNT(sv) = refcnt;
2094 assert(SvREFCNT(sv) == 0);
2100 if (defstash) { /* Still have a symbol table? */
2101 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2104 SAVEFREESV(SvSTASH(sv));
2105 if (destructor && GvCV(destructor)) {
2109 sv_upgrade(&ref, SVt_RV);
2110 SAVEI32(SvREFCNT(sv));
2111 SvRV(&ref) = SvREFCNT_inc(sv);
2118 perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL);
2123 SvOBJECT_off(sv); /* Curse the object. */
2124 if (SvTYPE(sv) != SVt_PVIO)
2125 --sv_objcount; /* XXX Might want something more general */
2130 switch (SvTYPE(sv)) {
2132 Safefree(IoTOP_NAME(sv));
2133 Safefree(IoFMT_NAME(sv));
2134 Safefree(IoBOTTOM_NAME(sv));
2150 Safefree(GvNAME(sv));
2157 (void)SvOOK_off(sv);
2162 SvREFCNT_dec(SvRV(sv));
2164 Safefree(SvPVX(sv));
2174 switch (SvTYPE(sv)) {
2190 del_XPVIV(SvANY(sv));
2193 del_XPVNV(SvANY(sv));
2196 del_XPVMG(SvANY(sv));
2199 del_XPVLV(SvANY(sv));
2202 del_XPVAV(SvANY(sv));
2205 del_XPVHV(SvANY(sv));
2208 del_XPVCV(SvANY(sv));
2211 del_XPVGV(SvANY(sv));
2214 del_XPVBM(SvANY(sv));
2217 del_XPVFM(SvANY(sv));
2220 del_XPVIO(SvANY(sv));
2223 SvFLAGS(sv) &= SVf_BREAK;
2224 SvFLAGS(sv) |= SVTYPEMASK;
2242 if (SvREADONLY(sv)) {
2243 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2246 if (SvREFCNT(sv) == 0) {
2247 if (SvFLAGS(sv) & SVf_BREAK)
2249 warn("Attempt to free unreferenced scalar");
2252 if (--SvREFCNT(sv) > 0)
2256 warn("Attempt to free temp prematurely");
2296 pv1 = SvPV(str1, cur1);
2301 pv2 = SvPV(str2, cur2);
2306 return !bcmp(pv1, pv2, cur1);
2325 pv1 = SvPV(str1, cur1);
2332 pv2 = SvPV(str2, cur2);
2335 return cur2 ? -1 : 0;
2341 if (retval = memcmp((void*)pv1, (void*)pv2, cur1))
2342 return retval < 0 ? -1 : 1;
2347 else if (retval = memcmp((void*)pv1, (void*)pv2, cur2))
2348 return retval < 0 ? -1 : 1;
2349 else if (cur1 == cur2)
2356 sv_gets(sv,fp,append)
2361 register char *bp; /* we're going to steal some values */
2362 register I32 cnt; /* from the stdio struct and put EVERYTHING */
2363 register STDCHAR *ptr; /* in the innermost loop into registers */
2364 register I32 newline = rschar;/* (assuming >= 6 registers) */
2369 if (SvTHINKFIRST(sv)) {
2370 if (SvREADONLY(sv) && curcop != &compiling)
2375 if (!SvUPGRADE(sv, SVt_PV))
2377 if (rspara) { /* have to do this both before and after */
2378 do { /* to make sure file boundaries work right */
2390 #ifdef USE_STD_STDIO /* Here is some breathtakingly efficient cheating */
2391 cnt = fp->_cnt; /* get count into register */
2392 (void)SvPOK_only(sv); /* validate pointer */
2393 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
2394 if (cnt > 80 && SvLEN(sv) > append) {
2395 shortbuffered = cnt - SvLEN(sv) + append + 1;
2396 cnt -= shortbuffered;
2400 SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */
2405 bp = SvPVX(sv) + append; /* move these two too to registers */
2410 while (--cnt >= 0) { /* this */ /* eat */
2411 if ((*bp++ = *ptr++) == newline) /* really */ /* dust */
2412 goto thats_all_folks; /* screams */ /* sed :-) */
2416 if (shortbuffered) { /* oh well, must extend */
2417 cnt = shortbuffered;
2419 bpx = bp - SvPVX(sv); /* prepare for possible relocation */
2421 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
2422 bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
2426 fp->_cnt = cnt; /* deregisterize cnt and ptr */
2428 i = _filbuf(fp); /* get more characters */
2430 ptr = fp->_ptr; /* reregisterize cnt and ptr */
2432 bpx = bp - SvPVX(sv); /* prepare for possible relocation */
2434 SvGROW(sv, bpx + cnt + 2);
2435 bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
2437 if (i == newline) { /* all done for now? */
2439 goto thats_all_folks;
2441 else if (i == EOF) /* all done for ever? */
2442 goto thats_really_all_folks;
2443 *bp++ = i; /* now go back to screaming loop */
2447 if (rslen > 1 && (bp - SvPVX(sv) < rslen || bcmp(bp - rslen, rs, rslen)))
2448 goto screamer; /* go back to the fray */
2449 thats_really_all_folks:
2451 cnt += shortbuffered;
2452 fp->_cnt = cnt; /* put these back or we're in trouble */
2455 SvCUR_set(sv, bp - SvPVX(sv)); /* set length */
2457 #else /* !USE_STD_STDIO */ /* The big, slow, and stupid way */
2461 register char * bpe = buf + sizeof(buf) - 3;
2465 while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ;
2468 sv_catpvn(sv, buf, bp - buf);
2470 sv_setpvn(sv, buf, bp - buf);
2471 if (i != EOF /* joy */
2479 bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rs, rslen)
2490 #endif /* USE_STD_STDIO */
2501 return SvCUR(sv) - append ? SvPVX(sv) : Nullch;
2513 if (SvTHINKFIRST(sv)) {
2514 if (SvREADONLY(sv) && curcop != &compiling)
2518 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
2519 #endif /* OVERLOAD */
2525 flags = SvFLAGS(sv);
2526 if (flags & SVp_IOK) {
2528 (void)SvIOK_only(sv);
2531 if (flags & SVp_NOK) {
2533 (void)SvNOK_only(sv);
2536 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
2537 if (!SvUPGRADE(sv, SVt_NV))
2540 (void)SvNOK_only(sv);
2544 while (isALPHA(*d)) d++;
2545 while (isDIGIT(*d)) d++;
2547 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
2551 while (d >= SvPVX(sv)) {
2561 *(d--) -= 'z' - 'a' + 1;
2564 /* oh,oh, the number grew */
2565 SvGROW(sv, SvCUR(sv) + 2);
2567 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
2583 if (SvTHINKFIRST(sv)) {
2584 if (SvREADONLY(sv) && curcop != &compiling)
2588 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
2589 #endif /* OVERLOAD */
2595 flags = SvFLAGS(sv);
2596 if (flags & SVp_IOK) {
2598 (void)SvIOK_only(sv);
2601 if (flags & SVp_NOK) {
2603 (void)SvNOK_only(sv);
2606 if (!(flags & SVp_POK)) {
2607 if (!SvUPGRADE(sv, SVt_NV))
2610 (void)SvNOK_only(sv);
2613 sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
2616 /* Make a string that will exist for the duration of the expression
2617 * evaluation. Actually, it may have to last longer than that, but
2618 * hopefully we won't free it until it has been assigned to a
2619 * permanent location. */
2625 Renew(tmps_stack, tmps_max, SV*);
2629 sv_mortalcopy(oldstr)
2638 sv_setsv(sv,oldstr);
2639 if (++tmps_ix >= tmps_max)
2641 tmps_stack[tmps_ix] = sv;
2654 SvFLAGS(sv) = SVs_TEMP;
2655 if (++tmps_ix >= tmps_max)
2657 tmps_stack[tmps_ix] = sv;
2661 /* same thing without the copying */
2669 if (SvREADONLY(sv) && curcop != &compiling)
2671 if (++tmps_ix >= tmps_max)
2673 tmps_stack[tmps_ix] = sv;
2691 sv_setpvn(sv,s,len);
2733 sv_upgrade(sv, SVt_RV);
2735 SvRV(sv) = SvREFCNT_inc(ref);
2740 /* make an exact duplicate of old */
2750 if (SvTYPE(old) == SVTYPEMASK) {
2751 warn("semi-panic: attempt to dup freed string");
2781 if (!*s) { /* reset ?? searches */
2782 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
2783 pm->op_pmflags &= ~PMf_USED;
2788 /* reset variables */
2790 if (!HvARRAY(stash))
2793 Zero(todo, 256, char);
2800 for ( ; i <= max; i++) {
2803 for (i = 0; i <= (I32) HvMAX(stash); i++) {
2804 for (entry = HvARRAY(stash)[i];
2806 entry = entry->hent_next) {
2807 if (!todo[(U8)*entry->hent_key])
2809 gv = (GV*)entry->hent_val;
2812 if (SvTYPE(sv) >= SVt_PV) {
2815 if (SvPVX(sv) != Nullch)
2822 if (HvNAME(GvHV(gv)))
2825 #ifndef VMS /* VMS has no environ array */
2827 environ[0] = Nullch;
2836 sv_2cv(sv, st, gvp, lref)
2846 return *gvp = Nullgv, Nullcv;
2847 switch (SvTYPE(sv)) {
2867 if (SvTYPE(cv) != SVt_PVCV)
2868 croak("Not a subroutine reference");
2876 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
2882 if (lref && !GvCV(gv)) {
2884 gv_efullname(sv, gv);
2885 newSUB(savestack_ix,
2886 newSVOP(OP_CONST, 0, sv),
2904 if ((Xpv = (XPV*)SvANY(sv)) &&
2905 (*Xpv->xpv_pv > '0' ||
2907 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
2914 return SvIVX(sv) != 0;
2917 return SvNVX(sv) != 0.0;
2919 return sv_2bool(sv);
2943 return (double)SvIVX(Sv);
2958 return sv_2pv(sv, lp);
2963 sv_pvn_force(sv, lp)
2969 if (SvREADONLY(sv) && curcop != &compiling)
2976 if (SvTYPE(sv) > SVt_PVLV) {
2980 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
2981 op_name[op->op_type]);
2984 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
2989 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
2990 SvGROW(sv, len + 1);
2991 Move(s,SvPVX(sv),len,char);
2996 SvPOK_on(sv); /* validate pointer */
2998 DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",
2999 (unsigned long)sv,SvPVX(sv)));
3010 if (ob && SvOBJECT(sv))
3011 return HvNAME(SvSTASH(sv));
3013 switch (SvTYPE(sv)) {
3027 case SVt_PVLV: return "LVALUE";
3028 case SVt_PVAV: return "ARRAY";
3029 case SVt_PVHV: return "HASH";
3030 case SVt_PVCV: return "CODE";
3031 case SVt_PVGV: return "GLOB";
3032 case SVt_PVFM: return "FORMLINE";
3033 default: return "UNKNOWN";
3061 return strEQ(HvNAME(SvSTASH(sv)), name);
3065 newSVrv(rv, classname)
3075 sv_upgrade(rv, SVt_RV);
3076 SvRV(rv) = SvREFCNT_inc(sv);
3080 HV* stash = gv_stashpv(classname, TRUE);
3081 (void)sv_bless(rv, stash);
3087 sv_setref_pv(rv, classname, pv)
3093 sv_setsv(rv, &sv_undef);
3095 sv_setiv(newSVrv(rv,classname), (IV)pv);
3100 sv_setref_iv(rv, classname, iv)
3105 sv_setiv(newSVrv(rv,classname), iv);
3110 sv_setref_nv(rv, classname, nv)
3115 sv_setnv(newSVrv(rv,classname), nv);
3120 sv_setref_pvn(rv, classname, pv, n)
3126 sv_setpvn(newSVrv(rv,classname), pv, n);
3137 croak("Can't bless non-reference value");
3139 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
3140 if (SvREADONLY(ref))
3142 if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO)
3147 (void)SvUPGRADE(ref, SVt_PVMG);
3148 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
3151 if (Gv_AMG(stash)) {
3154 #endif /* OVERLOAD */
3163 assert(SvTYPE(sv) == SVt_PVGV);
3167 sv_unmagic(sv, '*');
3168 Safefree(GvNAME(sv));
3169 SvFLAGS(sv) &= ~SVTYPEMASK;
3170 SvFLAGS(sv) |= SVt_PVMG;
3195 fprintf(stderr, "SV = 0\n");
3199 flags = SvFLAGS(sv);
3202 sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
3203 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
3205 if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,");
3206 if (flags & SVs_PADTMP) strcat(d, "PADTMP,");
3207 if (flags & SVs_PADMY) strcat(d, "PADMY,");
3208 if (flags & SVs_TEMP) strcat(d, "TEMP,");
3209 if (flags & SVs_OBJECT) strcat(d, "OBJECT,");
3210 if (flags & SVs_GMG) strcat(d, "GMG,");
3211 if (flags & SVs_SMG) strcat(d, "SMG,");
3212 if (flags & SVs_RMG) strcat(d, "RMG,");
3215 if (flags & SVf_IOK) strcat(d, "IOK,");
3216 if (flags & SVf_NOK) strcat(d, "NOK,");
3217 if (flags & SVf_POK) strcat(d, "POK,");
3218 if (flags & SVf_ROK) strcat(d, "ROK,");
3219 if (flags & SVf_OOK) strcat(d, "OOK,");
3220 if (flags & SVf_FAKE) strcat(d, "FAKE,");
3221 if (flags & SVf_READONLY) strcat(d, "READONLY,");
3224 if (flags & SVp_IOK) strcat(d, "pIOK,");
3225 if (flags & SVp_NOK) strcat(d, "pNOK,");
3226 if (flags & SVp_POK) strcat(d, "pPOK,");
3227 if (flags & SVp_SCREAM) strcat(d, "SCREAM,");
3234 fprintf(stderr, "SV = ");
3237 fprintf(stderr,"NULL%s\n", tmpbuf);
3240 fprintf(stderr,"IV%s\n", tmpbuf);
3243 fprintf(stderr,"NV%s\n", tmpbuf);
3246 fprintf(stderr,"RV%s\n", tmpbuf);
3249 fprintf(stderr,"PV%s\n", tmpbuf);
3252 fprintf(stderr,"PVIV%s\n", tmpbuf);
3255 fprintf(stderr,"PVNV%s\n", tmpbuf);
3258 fprintf(stderr,"PVBM%s\n", tmpbuf);
3261 fprintf(stderr,"PVMG%s\n", tmpbuf);
3264 fprintf(stderr,"PVLV%s\n", tmpbuf);
3267 fprintf(stderr,"PVAV%s\n", tmpbuf);
3270 fprintf(stderr,"PVHV%s\n", tmpbuf);
3273 fprintf(stderr,"PVCV%s\n", tmpbuf);
3276 fprintf(stderr,"PVGV%s\n", tmpbuf);
3279 fprintf(stderr,"PVFM%s\n", tmpbuf);
3282 fprintf(stderr,"PVIO%s\n", tmpbuf);
3285 fprintf(stderr,"UNKNOWN%s\n", tmpbuf);
3288 if (type >= SVt_PVIV || type == SVt_IV)
3289 fprintf(stderr, " IV = %ld\n", (long)SvIVX(sv));
3290 if (type >= SVt_PVNV || type == SVt_NV)
3291 fprintf(stderr, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
3293 fprintf(stderr, " RV = 0x%lx\n", (long)SvRV(sv));
3299 if (type <= SVt_PVLV) {
3301 fprintf(stderr, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
3302 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
3304 fprintf(stderr, " PV = 0\n");
3306 if (type >= SVt_PVMG) {
3308 fprintf(stderr, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
3311 fprintf(stderr, " STASH = %s\n", HvNAME(SvSTASH(sv)));
3315 fprintf(stderr, " TYPE = %c\n", LvTYPE(sv));
3316 fprintf(stderr, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
3317 fprintf(stderr, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
3318 fprintf(stderr, " TARG = 0x%lx\n", (long)LvTARG(sv));
3319 sv_dump(LvTARG(sv));
3322 fprintf(stderr, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
3323 fprintf(stderr, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
3324 fprintf(stderr, " FILL = %ld\n", (long)AvFILL(sv));
3325 fprintf(stderr, " MAX = %ld\n", (long)AvMAX(sv));
3326 fprintf(stderr, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
3328 fprintf(stderr, " FLAGS = (REAL)\n");
3330 fprintf(stderr, " FLAGS = ()\n");
3333 fprintf(stderr, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
3334 fprintf(stderr, " KEYS = %ld\n", (long)HvKEYS(sv));
3335 fprintf(stderr, " FILL = %ld\n", (long)HvFILL(sv));
3336 fprintf(stderr, " MAX = %ld\n", (long)HvMAX(sv));
3337 fprintf(stderr, " RITER = %ld\n", (long)HvRITER(sv));
3338 fprintf(stderr, " EITER = 0x%lx\n",(long) HvEITER(sv));
3340 fprintf(stderr, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
3342 fprintf(stderr, " NAME = \"%s\"\n", HvNAME(sv));
3346 fprintf(stderr, " STASH = 0x%lx\n", (long)CvSTASH(sv));
3347 fprintf(stderr, " START = 0x%lx\n", (long)CvSTART(sv));
3348 fprintf(stderr, " ROOT = 0x%lx\n", (long)CvROOT(sv));
3349 fprintf(stderr, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
3350 fprintf(stderr, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
3351 fprintf(stderr, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
3352 fprintf(stderr, " DEPTH = %ld\n", (long)CvDEPTH(sv));
3353 fprintf(stderr, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
3354 if (type == SVt_PVFM)
3355 fprintf(stderr, " LINES = %ld\n", (long)FmLINES(sv));
3358 fprintf(stderr, " NAME = %s\n", GvNAME(sv));
3359 fprintf(stderr, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
3360 fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
3361 fprintf(stderr, " GP = 0x%lx\n", (long)GvGP(sv));
3362 fprintf(stderr, " SV = 0x%lx\n", (long)GvSV(sv));
3363 fprintf(stderr, " REFCNT = %ld\n", (long)GvREFCNT(sv));
3364 fprintf(stderr, " IO = 0x%lx\n", (long)GvIOp(sv));
3365 fprintf(stderr, " FORM = 0x%lx\n", (long)GvFORM(sv));
3366 fprintf(stderr, " AV = 0x%lx\n", (long)GvAV(sv));
3367 fprintf(stderr, " HV = 0x%lx\n", (long)GvHV(sv));
3368 fprintf(stderr, " CV = 0x%lx\n", (long)GvCV(sv));
3369 fprintf(stderr, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
3370 fprintf(stderr, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
3371 fprintf(stderr, " LINE = %ld\n", (long)GvLINE(sv));
3372 fprintf(stderr, " FLAGS = 0x%x\n", (int)GvFLAGS(sv));
3373 fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv));
3374 fprintf(stderr, " EGV = 0x%lx\n", (long)GvEGV(sv));
3377 fprintf(stderr, " IFP = 0x%lx\n", (long)IoIFP(sv));
3378 fprintf(stderr, " OFP = 0x%lx\n", (long)IoOFP(sv));
3379 fprintf(stderr, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
3380 fprintf(stderr, " LINES = %ld\n", (long)IoLINES(sv));
3381 fprintf(stderr, " PAGE = %ld\n", (long)IoPAGE(sv));
3382 fprintf(stderr, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
3383 fprintf(stderr, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
3384 fprintf(stderr, " TOP_NAME = %s\n", IoTOP_NAME(sv));
3385 fprintf(stderr, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
3386 fprintf(stderr, " FMT_NAME = %s\n", IoFMT_NAME(sv));
3387 fprintf(stderr, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
3388 fprintf(stderr, " BOTTOM_NAME = %s\n", IoBOTTOM_NAME(sv));
3389 fprintf(stderr, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
3390 fprintf(stderr, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
3391 fprintf(stderr, " TYPE = %c\n", IoTYPE(sv));
3392 fprintf(stderr, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));
3411 switch (SvTYPE(sv)) {
3419 croak("Bad filehandle: %s", GvNAME(gv));
3423 croak(no_usym, "filehandle");
3425 return sv_2io(SvRV(sv));
3426 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3432 croak("Bad filehandle: %s", SvPV(sv,na));