3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "I wonder what the Entish is for 'yes' and 'no'," he thought.
18 /* Use an overridden DBL_DIG */
22 # define DBL_DIG OVR_DBL_DIG
24 /* The following is all to get DBL_DIG, in order to pick a nice
25 default value for printing floating point numbers in Gconvert.
35 #define DBL_DIG 15 /* A guess that works lots of places */
39 #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) && !defined(__QNX__)
44 #define FCALL this->*f
45 #define VTBL this->*vtbl
47 #else /* !PERL_OBJECT */
49 static IV asIV _((SV* sv));
50 static UV asUV _((SV* sv));
51 static SV *more_sv _((void));
52 static XPVIV *more_xiv _((void));
53 static XPVNV *more_xnv _((void));
54 static XPV *more_xpv _((void));
55 static XRV *more_xrv _((void));
56 static XPVIV *new_xiv _((void));
57 static XPVNV *new_xnv _((void));
58 static XPV *new_xpv _((void));
59 static XRV *new_xrv _((void));
60 static void del_xiv _((XPVIV* p));
61 static void del_xnv _((XPVNV* p));
62 static void del_xpv _((XPV* p));
63 static void del_xrv _((XRV* p));
64 static void sv_mortalgrow _((void));
65 static void sv_unglob _((SV* sv));
66 static void sv_check_thinkfirst _((SV *sv));
69 static void *my_safemalloc(MEM_SIZE size);
72 typedef void (*SVFUNC) _((SV*));
76 #endif /* PERL_OBJECT */
83 (p) = (SV*)safemalloc(sizeof(SV)); \
92 Safefree((char*)(p)); \
99 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
101 #define REG_REPLACE(sv,a,b) \
103 void* p = sv->sv_any; \
104 I32 h = REGHASH(sv, regsize); \
106 while (registry[i] != (a)) { \
107 if (++i >= regsize) \
110 die("SV registry bug"); \
115 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
116 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
122 if (sv_count >= (regsize >> 1))
124 SV **oldreg = registry;
125 I32 oldsize = regsize;
127 regsize = regsize ? ((regsize << 2) + 1) : 2037;
128 Newz(707, registry, regsize, SV*);
133 for (i = 0; i < oldsize; ++i) {
134 SV* oldsv = oldreg[i];
160 for (i = 0; i < regsize; ++i) {
161 SV* sv = registry[i];
168 sv_add_arena(ptr, size, flags)
173 if (!(flags & SVf_FAKE))
180 * "A time to plant, and a time to uproot what was planted..."
183 #define plant_SV(p) \
185 SvANY(p) = (void *)sv_root; \
186 SvFLAGS(p) = SVTYPEMASK; \
191 /* sv_mutex must be held while calling uproot_SV() */
192 #define uproot_SV(p) \
195 sv_root = (SV*)SvANY(p); \
199 #define new_SV(p) do { \
210 #define del_SV(p) do { \
227 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
229 svend = &sva[SvREFCNT(sva)];
230 if (p >= sv && p < svend)
234 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
241 #else /* ! DEBUGGING */
243 #define del_SV(p) plant_SV(p)
245 #endif /* DEBUGGING */
248 sv_add_arena(char *ptr, U32 size, U32 flags)
253 Zero(sva, size, char);
255 /* The first SV in an arena isn't an SV. */
256 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
257 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
258 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
263 svend = &sva[SvREFCNT(sva) - 1];
266 SvANY(sv) = (void *)(SV*)(sv + 1);
267 SvFLAGS(sv) = SVTYPEMASK;
271 SvFLAGS(sv) = SVTYPEMASK;
274 /* sv_mutex must be held while calling more_sv() */
281 sv_add_arena(nice_chunk, nice_chunk_size, 0);
285 char *chunk; /* must use New here to match call to */
286 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
287 sv_add_arena(chunk, 1008, 0);
300 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
301 svend = &sva[SvREFCNT(sva)];
302 for (sv = sva + 1; sv < svend; ++sv) {
303 if (SvTYPE(sv) != SVTYPEMASK)
312 do_report_used(SV *sv)
314 if (SvTYPE(sv) != SVTYPEMASK) {
315 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
316 PerlIO_printf(PerlIO_stderr(), "****\n");
324 visit(do_report_used);
328 do_clean_objs(SV *sv)
332 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
333 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
339 /* XXX Might want to check arrays, etc. */
342 #ifndef DISABLE_DESTRUCTOR_KLUDGE
344 do_clean_named_objs(SV *sv)
346 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
347 do_clean_objs(GvSV(sv));
354 in_clean_objs = TRUE;
355 #ifndef DISABLE_DESTRUCTOR_KLUDGE
356 visit(do_clean_named_objs);
358 visit(do_clean_objs);
359 in_clean_objs = FALSE;
365 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
366 SvFLAGS(sv) |= SVf_BREAK;
375 in_clean_all = FALSE;
384 /* Free arenas here, but be careful about fake ones. (We assume
385 contiguity of the fake ones with the corresponding real ones.) */
387 for (sva = sv_arenaroot; sva; sva = svanext) {
388 svanext = (SV*) SvANY(sva);
389 while (svanext && SvFAKE(svanext))
390 svanext = (SV*) SvANY(svanext);
393 Safefree((void *)sva);
407 * See comment in more_xiv() -- RAM.
409 xiv_root = (IV**)*xiv;
410 return (XPVIV*)((char*)xiv - sizeof(XPV));
418 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
419 *xiv = (IV *)xiv_root;
427 register IV** xivend;
429 New(705, ptr, 1008/sizeof(XPV), XPV);
430 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
431 xiv_arenaroot = ptr; /* to keep Purify happy */
434 xivend = &xiv[1008 / sizeof(IV *) - 1];
435 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
437 while (xiv < xivend) {
438 *xiv = (IV *)(xiv + 1);
451 xnv_root = *(double**)xnv;
452 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
460 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
461 *(double**)xnv = xnv_root;
468 register double* xnv;
469 register double* xnvend;
470 New(711, xnv, 1008/sizeof(double), double);
471 xnvend = &xnv[1008 / sizeof(double) - 1];
472 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
474 while (xnv < xnvend) {
475 *(double**)xnv = (double*)(xnv + 1);
488 xrv_root = (XRV*)xrv->xrv_rv;
497 p->xrv_rv = (SV*)xrv_root;
505 register XRV* xrvend;
506 New(712, xrv_root, 1008/sizeof(XRV), XRV);
508 xrvend = &xrv[1008 / sizeof(XRV) - 1];
509 while (xrv < xrvend) {
510 xrv->xrv_rv = (SV*)(xrv + 1);
523 xpv_root = (XPV*)xpv->xpv_pv;
532 p->xpv_pv = (char*)xpv_root;
540 register XPV* xpvend;
541 New(713, xpv_root, 1008/sizeof(XPV), XPV);
543 xpvend = &xpv[1008 / sizeof(XPV) - 1];
544 while (xpv < xpvend) {
545 xpv->xpv_pv = (char*)(xpv + 1);
553 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
554 #define del_XIV(p) Safefree((char*)p)
556 #define new_XIV() (void*)new_xiv()
557 #define del_XIV(p) del_xiv((XPVIV*) p)
561 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
562 #define del_XNV(p) Safefree((char*)p)
564 #define new_XNV() (void*)new_xnv()
565 #define del_XNV(p) del_xnv((XPVNV*) p)
569 #define new_XRV() (void*)safemalloc(sizeof(XRV))
570 #define del_XRV(p) Safefree((char*)p)
572 #define new_XRV() (void*)new_xrv()
573 #define del_XRV(p) del_xrv((XRV*) p)
577 #define new_XPV() (void*)safemalloc(sizeof(XPV))
578 #define del_XPV(p) Safefree((char*)p)
580 #define new_XPV() (void*)new_xpv()
581 #define del_XPV(p) del_xpv((XPV *)p)
585 # define my_safemalloc(s) safemalloc(s)
586 # define my_safefree(s) free(s)
589 my_safemalloc(MEM_SIZE size)
592 New(717, p, size, char);
595 # define my_safefree(s) Safefree(s)
598 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
599 #define del_XPVIV(p) my_safefree((char*)p)
601 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
602 #define del_XPVNV(p) my_safefree((char*)p)
604 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
605 #define del_XPVMG(p) my_safefree((char*)p)
607 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
608 #define del_XPVLV(p) my_safefree((char*)p)
610 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
611 #define del_XPVAV(p) my_safefree((char*)p)
613 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
614 #define del_XPVHV(p) my_safefree((char*)p)
616 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
617 #define del_XPVCV(p) my_safefree((char*)p)
619 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
620 #define del_XPVGV(p) my_safefree((char*)p)
622 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
623 #define del_XPVBM(p) my_safefree((char*)p)
625 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
626 #define del_XPVFM(p) my_safefree((char*)p)
628 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
629 #define del_XPVIO(p) my_safefree((char*)p)
632 sv_upgrade(register SV *sv, U32 mt)
642 if (SvTYPE(sv) == mt)
648 switch (SvTYPE(sv)) {
663 nv = (double)SvIVX(sv);
669 else if (mt < SVt_PVIV)
686 pv = (char*)SvRV(sv);
690 nv = (double)(unsigned long)pv;
706 else if (mt == SVt_NV)
717 del_XPVIV(SvANY(sv));
727 del_XPVNV(SvANY(sv));
737 del_XPVMG(SvANY(sv));
740 croak("Can't upgrade that kind of scalar");
745 croak("Can't upgrade to undef");
747 SvANY(sv) = new_XIV();
751 SvANY(sv) = new_XNV();
755 SvANY(sv) = new_XRV();
759 SvANY(sv) = new_XPV();
765 SvANY(sv) = new_XPVIV();
775 SvANY(sv) = new_XPVNV();
783 SvANY(sv) = new_XPVMG();
793 SvANY(sv) = new_XPVLV();
807 SvANY(sv) = new_XPVAV();
822 SvANY(sv) = new_XPVHV();
838 SvANY(sv) = new_XPVCV();
839 Zero(SvANY(sv), 1, XPVCV);
849 SvANY(sv) = new_XPVGV();
864 SvANY(sv) = new_XPVBM();
877 SvANY(sv) = new_XPVFM();
878 Zero(SvANY(sv), 1, XPVFM);
888 SvANY(sv) = new_XPVIO();
889 Zero(SvANY(sv), 1, XPVIO);
900 SvFLAGS(sv) &= ~SVTYPEMASK;
909 SV *t = sv_newmortal();
919 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
923 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
924 if (sv == &sv_undef) {
925 sv_catpv(t, "SV_UNDEF");
926 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
927 SVs_GMG|SVs_SMG|SVs_RMG)) &&
931 else if (sv == &sv_no) {
932 sv_catpv(t, "SV_NO");
933 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
934 SVs_GMG|SVs_SMG|SVs_RMG)) &&
935 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
942 sv_catpv(t, "SV_YES");
943 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
944 SVs_GMG|SVs_SMG|SVs_RMG)) &&
945 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
948 SvPVX(sv) && *SvPVX(sv) == '1' &&
954 else if (SvREFCNT(sv) == 0) {
960 if (SvCUR(t) + unref > 10) {
961 SvCUR(t) = unref + 3;
969 switch (SvTYPE(sv)) {
971 sv_catpv(t, "FREED");
975 sv_catpv(t, "UNDEF");
1009 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1011 sv_catpv(t, "CV()");
1029 sv_catpv(t, "(null)");
1031 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1033 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1035 else if (SvNOKp(sv)) {
1036 SET_NUMERIC_STANDARD();
1037 sv_catpvf(t, "(%g)",SvNVX(sv));
1039 else if (SvIOKp(sv))
1040 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1054 sv_backoff(register SV *sv)
1058 char *s = SvPVX(sv);
1059 SvLEN(sv) += SvIVX(sv);
1060 SvPVX(sv) -= SvIVX(sv);
1062 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1064 SvFLAGS(sv) &= ~SVf_OOK;
1070 sv_grow(register SV *sv, register I32 newlen)
1072 sv_grow(SV* sv, unsigned long newlen)
1077 #ifdef HAS_64K_LIMIT
1078 if (newlen >= 0x10000) {
1079 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1082 #endif /* HAS_64K_LIMIT */
1085 if (SvTYPE(sv) < SVt_PV) {
1086 sv_upgrade(sv, SVt_PV);
1089 else if (SvOOK(sv)) { /* pv is offset? */
1092 if (newlen > SvLEN(sv))
1093 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1094 #ifdef HAS_64K_LIMIT
1095 if (newlen >= 0x10000)
1101 if (newlen > SvLEN(sv)) { /* need more room? */
1103 Renew(s,newlen,char);
1105 New(703,s,newlen,char);
1107 SvLEN_set(sv, newlen);
1113 sv_setiv(register SV *sv, IV i)
1115 sv_check_thinkfirst(sv);
1116 switch (SvTYPE(sv)) {
1118 sv_upgrade(sv, SVt_IV);
1121 sv_upgrade(sv, SVt_PVNV);
1125 sv_upgrade(sv, SVt_PVIV);
1141 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1142 op_desc[op->op_type]);
1145 (void)SvIOK_only(sv); /* validate number */
1151 sv_setiv_mg(register SV *sv, IV i)
1158 sv_setuv(register SV *sv, UV u)
1163 sv_setnv(sv, (double)u);
1167 sv_setuv_mg(register SV *sv, UV u)
1174 sv_setnv(register SV *sv, double num)
1176 sv_check_thinkfirst(sv);
1177 switch (SvTYPE(sv)) {
1180 sv_upgrade(sv, SVt_NV);
1185 sv_upgrade(sv, SVt_PVNV);
1192 (void)SvOOK_off(sv);
1207 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1208 op_name[op->op_type]);
1212 (void)SvNOK_only(sv); /* validate number */
1217 sv_setnv_mg(register SV *sv, double num)
1224 not_a_number(SV *sv)
1230 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1231 /* each *s can expand to 4 chars + "...\0",
1232 i.e. need room for 8 chars */
1234 for (s = SvPVX(sv); *s && d < limit; s++) {
1236 if (ch & 128 && !isPRINT_LC(ch)) {
1245 else if (ch == '\r') {
1249 else if (ch == '\f') {
1253 else if (ch == '\\') {
1257 else if (isPRINT_LC(ch))
1272 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1273 op_name[op->op_type]);
1275 warn("Argument \"%s\" isn't numeric", tmpbuf);
1279 sv_2iv(register SV *sv)
1283 if (SvGMAGICAL(sv)) {
1288 if (SvNVX(sv) < 0.0)
1289 return I_V(SvNVX(sv));
1291 return (IV) U_V(SvNVX(sv));
1293 if (SvPOKp(sv) && SvLEN(sv))
1296 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1304 if (SvTHINKFIRST(sv)) {
1308 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1309 return SvIV(tmpstr);
1310 #endif /* OVERLOAD */
1311 return (IV)SvRV(sv);
1313 if (SvREADONLY(sv)) {
1315 if (SvNVX(sv) < 0.0)
1316 return I_V(SvNVX(sv));
1318 return (IV) U_V(SvNVX(sv));
1320 if (SvPOKp(sv) && SvLEN(sv))
1327 switch (SvTYPE(sv)) {
1329 sv_upgrade(sv, SVt_IV);
1332 sv_upgrade(sv, SVt_PVIV);
1335 sv_upgrade(sv, SVt_PVNV);
1340 if (SvNVX(sv) < 0.0)
1341 SvIVX(sv) = I_V(SvNVX(sv));
1343 SvUVX(sv) = U_V(SvNVX(sv));
1345 else if (SvPOKp(sv) && SvLEN(sv)) {
1347 SvIVX(sv) = asIV(sv);
1351 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1355 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1356 (unsigned long)sv,(long)SvIVX(sv)));
1361 sv_2uv(register SV *sv)
1365 if (SvGMAGICAL(sv)) {
1370 return U_V(SvNVX(sv));
1371 if (SvPOKp(sv) && SvLEN(sv))
1374 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1382 if (SvTHINKFIRST(sv)) {
1386 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1387 return SvUV(tmpstr);
1388 #endif /* OVERLOAD */
1389 return (UV)SvRV(sv);
1391 if (SvREADONLY(sv)) {
1393 return U_V(SvNVX(sv));
1395 if (SvPOKp(sv) && SvLEN(sv))
1402 switch (SvTYPE(sv)) {
1404 sv_upgrade(sv, SVt_IV);
1407 sv_upgrade(sv, SVt_PVIV);
1410 sv_upgrade(sv, SVt_PVNV);
1415 SvUVX(sv) = U_V(SvNVX(sv));
1417 else if (SvPOKp(sv) && SvLEN(sv)) {
1419 SvUVX(sv) = asUV(sv);
1422 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1429 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1430 (unsigned long)sv,SvUVX(sv)));
1435 sv_2nv(register SV *sv)
1439 if (SvGMAGICAL(sv)) {
1443 if (SvPOKp(sv) && SvLEN(sv)) {
1444 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1446 SET_NUMERIC_STANDARD();
1447 return atof(SvPVX(sv));
1450 return (double)SvIVX(sv);
1452 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1460 if (SvTHINKFIRST(sv)) {
1464 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1465 return SvNV(tmpstr);
1466 #endif /* OVERLOAD */
1467 return (double)(unsigned long)SvRV(sv);
1469 if (SvREADONLY(sv)) {
1470 if (SvPOKp(sv) && SvLEN(sv)) {
1471 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1473 SET_NUMERIC_STANDARD();
1474 return atof(SvPVX(sv));
1477 return (double)SvIVX(sv);
1483 if (SvTYPE(sv) < SVt_NV) {
1484 if (SvTYPE(sv) == SVt_IV)
1485 sv_upgrade(sv, SVt_PVNV);
1487 sv_upgrade(sv, SVt_NV);
1488 DEBUG_c(SET_NUMERIC_STANDARD());
1489 DEBUG_c(PerlIO_printf(Perl_debug_log,
1490 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1492 else if (SvTYPE(sv) < SVt_PVNV)
1493 sv_upgrade(sv, SVt_PVNV);
1495 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1497 SvNVX(sv) = (double)SvIVX(sv);
1499 else if (SvPOKp(sv) && SvLEN(sv)) {
1500 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1502 SET_NUMERIC_STANDARD();
1503 SvNVX(sv) = atof(SvPVX(sv));
1507 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1512 DEBUG_c(SET_NUMERIC_STANDARD());
1513 DEBUG_c(PerlIO_printf(Perl_debug_log,
1514 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1521 I32 numtype = looks_like_number(sv);
1525 return atol(SvPVX(sv));
1526 if (!numtype && dowarn)
1528 SET_NUMERIC_STANDARD();
1529 d = atof(SvPVX(sv));
1539 I32 numtype = looks_like_number(sv);
1543 return strtoul(SvPVX(sv), Null(char**), 10);
1545 if (!numtype && dowarn)
1547 SET_NUMERIC_STANDARD();
1548 return U_V(atof(SvPVX(sv)));
1552 looks_like_number(SV *sv)
1555 register char *send;
1556 register char *sbegin;
1564 else if (SvPOKp(sv))
1565 sbegin = SvPV(sv, len);
1568 send = sbegin + len;
1573 if (*s == '+' || *s == '-')
1576 /* next must be digit or '.' */
1580 } while (isDIGIT(*s));
1583 while (isDIGIT(*s)) /* optional digits after "." */
1587 else if (*s == '.') {
1589 /* no digits before '.' means we need digits after it */
1593 } while (isDIGIT(*s));
1602 * we return 1 if the number can be converted to _integer_ with atol()
1603 * and 2 if you need (int)atof().
1607 /* we can have an optional exponent part */
1608 if (*s == 'e' || *s == 'E') {
1611 if (*s == '+' || *s == '-')
1616 } while (isDIGIT(*s));
1625 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1631 sv_2pv(register SV *sv, STRLEN *lp)
1636 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1642 if (SvGMAGICAL(sv)) {
1649 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1654 SET_NUMERIC_STANDARD();
1655 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1660 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1669 if (SvTHINKFIRST(sv)) {
1673 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1674 return SvPV(tmpstr,*lp);
1675 #endif /* OVERLOAD */
1680 switch (SvTYPE(sv)) {
1689 case SVt_PVMG: s = "SCALAR"; break;
1690 case SVt_PVLV: s = "LVALUE"; break;
1691 case SVt_PVAV: s = "ARRAY"; break;
1692 case SVt_PVHV: s = "HASH"; break;
1693 case SVt_PVCV: s = "CODE"; break;
1694 case SVt_PVGV: s = "GLOB"; break;
1695 case SVt_PVFM: s = "FORMLINE"; break;
1696 case SVt_PVIO: s = "IO"; break;
1697 default: s = "UNKNOWN"; break;
1701 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1704 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1710 if (SvREADONLY(sv)) {
1712 SET_NUMERIC_STANDARD();
1713 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1718 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1728 (void)SvUPGRADE(sv, SVt_PV);
1730 if (SvTYPE(sv) < SVt_PVNV)
1731 sv_upgrade(sv, SVt_PVNV);
1734 olderrno = errno; /* some Xenix systems wipe out errno here */
1736 if (SvNVX(sv) == 0.0)
1737 (void)strcpy(s,"0");
1741 SET_NUMERIC_STANDARD();
1742 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1745 #ifdef FIXNEGATIVEZERO
1746 if (*s == '-' && s[1] == '0' && !s[2])
1755 else if (SvIOKp(sv)) {
1756 U32 oldIOK = SvIOK(sv);
1757 if (SvTYPE(sv) < SVt_PVIV)
1758 sv_upgrade(sv, SVt_PVIV);
1759 olderrno = errno; /* some Xenix systems wipe out errno here */
1760 sv_setpviv(sv, SvIVX(sv));
1770 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1775 *lp = s - SvPVX(sv);
1778 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1782 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1783 /* Sneaky stuff here */
1787 tsv = newSVpv(tmpbuf, 0);
1803 len = strlen(tmpbuf);
1805 #ifdef FIXNEGATIVEZERO
1806 if (len == 2 && t[0] == '-' && t[1] == '0') {
1811 (void)SvUPGRADE(sv, SVt_PV);
1813 s = SvGROW(sv, len + 1);
1821 /* This function is only called on magical items */
1823 sv_2bool(register SV *sv)
1835 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1836 return SvTRUE(tmpsv);
1838 #endif /* OVERLOAD */
1839 return SvRV(sv) != 0;
1842 register XPV* Xpvtmp;
1843 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1844 (*Xpvtmp->xpv_pv > '0' ||
1845 Xpvtmp->xpv_cur > 1 ||
1846 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1853 return SvIVX(sv) != 0;
1856 return SvNVX(sv) != 0.0;
1863 /* Note: sv_setsv() should not be called with a source string that needs
1864 * to be reused, since it may destroy the source string if it is marked
1869 sv_setsv(SV *dstr, register SV *sstr)
1872 register U32 sflags;
1878 sv_check_thinkfirst(dstr);
1881 stype = SvTYPE(sstr);
1882 dtype = SvTYPE(dstr);
1884 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1885 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1886 sv_setpvn(dstr, "", 0);
1887 (void)SvPOK_only(dstr);
1888 dtype = SvTYPE(dstr);
1893 #endif /* OVERLOAD */
1894 /* There's a lot of redundancy below but we're going for speed here */
1898 (void)SvOK_off(dstr);
1901 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1903 sv_upgrade(dstr, SVt_IV);
1904 else if (dtype == SVt_NV)
1905 sv_upgrade(dstr, SVt_PVNV);
1907 sv_upgrade(dstr, SVt_PVIV);
1911 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1913 sv_upgrade(dstr, SVt_NV);
1915 sv_upgrade(dstr, SVt_PVNV);
1920 sv_upgrade(dstr, SVt_RV);
1921 else if (dtype == SVt_PVGV &&
1922 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1925 if (curcop->cop_stash != GvSTASH(dstr))
1926 GvIMPORTED_on(dstr);
1936 sv_upgrade(dstr, SVt_PV);
1939 if (dtype < SVt_PVIV)
1940 sv_upgrade(dstr, SVt_PVIV);
1943 if (dtype < SVt_PVNV)
1944 sv_upgrade(dstr, SVt_PVNV);
1952 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1953 op_name[op->op_type]);
1955 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1959 if (dtype <= SVt_PVGV) {
1961 if (dtype != SVt_PVGV) {
1962 char *name = GvNAME(sstr);
1963 STRLEN len = GvNAMELEN(sstr);
1964 sv_upgrade(dstr, SVt_PVGV);
1965 sv_magic(dstr, dstr, '*', name, len);
1966 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
1967 GvNAME(dstr) = savepvn(name, len);
1968 GvNAMELEN(dstr) = len;
1969 SvFAKE_on(dstr); /* can coerce to non-glob */
1971 /* ahem, death to those who redefine active sort subs */
1972 else if (curstack == sortstack
1973 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1974 croak("Can't redefine active sort subroutine %s",
1976 (void)SvOK_off(dstr);
1977 GvINTRO_off(dstr); /* one-shot flag */
1979 GvGP(dstr) = gp_ref(GvGP(sstr));
1981 if (curcop->cop_stash != GvSTASH(dstr))
1982 GvIMPORTED_on(dstr);
1989 if (SvGMAGICAL(sstr)) {
1991 if (SvTYPE(sstr) != stype) {
1992 stype = SvTYPE(sstr);
1993 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1998 sv_upgrade(dstr, stype);
2001 sflags = SvFLAGS(sstr);
2003 if (sflags & SVf_ROK) {
2004 if (dtype >= SVt_PV) {
2005 if (dtype == SVt_PVGV) {
2007 SV *sref = SvREFCNT_inc(SvRV(sstr));
2009 int intro = GvINTRO(dstr);
2013 GvGP(dstr)->gp_refcnt--;
2014 GvINTRO_off(dstr); /* one-shot flag */
2015 Newz(602,gp, 1, GP);
2016 GvGP(dstr) = gp_ref(gp);
2017 GvSV(dstr) = NEWSV(72,0);
2018 GvLINE(dstr) = curcop->cop_line;
2019 GvEGV(dstr) = (GV*)dstr;
2022 switch (SvTYPE(sref)) {
2025 SAVESPTR(GvAV(dstr));
2027 dref = (SV*)GvAV(dstr);
2028 GvAV(dstr) = (AV*)sref;
2029 if (curcop->cop_stash != GvSTASH(dstr))
2030 GvIMPORTED_AV_on(dstr);
2034 SAVESPTR(GvHV(dstr));
2036 dref = (SV*)GvHV(dstr);
2037 GvHV(dstr) = (HV*)sref;
2038 if (curcop->cop_stash != GvSTASH(dstr))
2039 GvIMPORTED_HV_on(dstr);
2043 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2044 SvREFCNT_dec(GvCV(dstr));
2045 GvCV(dstr) = Nullcv;
2046 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2049 SAVESPTR(GvCV(dstr));
2052 dref = (SV*)GvCV(dstr);
2053 if (GvCV(dstr) != (CV*)sref) {
2054 CV* cv = GvCV(dstr);
2056 if (!GvCVGEN((GV*)dstr) &&
2057 (CvROOT(cv) || CvXSUB(cv)))
2059 /* ahem, death to those who redefine
2060 * active sort subs */
2061 if (curstack == sortstack &&
2062 sortcop == CvSTART(cv))
2064 "Can't redefine active sort subroutine %s",
2065 GvENAME((GV*)dstr));
2066 if (cv_const_sv(cv))
2067 warn("Constant subroutine %s redefined",
2068 GvENAME((GV*)dstr));
2070 warn("Subroutine %s redefined",
2071 GvENAME((GV*)dstr));
2073 cv_ckproto(cv, (GV*)dstr,
2074 SvPOK(sref) ? SvPVX(sref) : Nullch);
2076 GvCV(dstr) = (CV*)sref;
2077 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2078 GvASSUMECV_on(dstr);
2081 if (curcop->cop_stash != GvSTASH(dstr))
2082 GvIMPORTED_CV_on(dstr);
2086 SAVESPTR(GvIOp(dstr));
2088 dref = (SV*)GvIOp(dstr);
2089 GvIOp(dstr) = (IO*)sref;
2093 SAVESPTR(GvSV(dstr));
2095 dref = (SV*)GvSV(dstr);
2097 if (curcop->cop_stash != GvSTASH(dstr))
2098 GvIMPORTED_SV_on(dstr);
2109 (void)SvOOK_off(dstr); /* backoff */
2110 Safefree(SvPVX(dstr));
2111 SvLEN(dstr)=SvCUR(dstr)=0;
2114 (void)SvOK_off(dstr);
2115 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2117 if (sflags & SVp_NOK) {
2119 SvNVX(dstr) = SvNVX(sstr);
2121 if (sflags & SVp_IOK) {
2122 (void)SvIOK_on(dstr);
2123 SvIVX(dstr) = SvIVX(sstr);
2126 if (SvAMAGIC(sstr)) {
2129 #endif /* OVERLOAD */
2131 else if (sflags & SVp_POK) {
2134 * Check to see if we can just swipe the string. If so, it's a
2135 * possible small lose on short strings, but a big win on long ones.
2136 * It might even be a win on short strings if SvPVX(dstr)
2137 * has to be allocated and SvPVX(sstr) has to be freed.
2140 if (SvTEMP(sstr) && /* slated for free anyway? */
2141 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2142 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2144 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2146 SvFLAGS(dstr) &= ~SVf_OOK;
2147 Safefree(SvPVX(dstr) - SvIVX(dstr));
2150 Safefree(SvPVX(dstr));
2152 (void)SvPOK_only(dstr);
2153 SvPV_set(dstr, SvPVX(sstr));
2154 SvLEN_set(dstr, SvLEN(sstr));
2155 SvCUR_set(dstr, SvCUR(sstr));
2157 (void)SvOK_off(sstr);
2158 SvPV_set(sstr, Nullch);
2163 else { /* have to copy actual string */
2164 STRLEN len = SvCUR(sstr);
2166 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2167 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2168 SvCUR_set(dstr, len);
2169 *SvEND(dstr) = '\0';
2170 (void)SvPOK_only(dstr);
2173 if (sflags & SVp_NOK) {
2175 SvNVX(dstr) = SvNVX(sstr);
2177 if (sflags & SVp_IOK) {
2178 (void)SvIOK_on(dstr);
2179 SvIVX(dstr) = SvIVX(sstr);
2182 else if (sflags & SVp_NOK) {
2183 SvNVX(dstr) = SvNVX(sstr);
2184 (void)SvNOK_only(dstr);
2186 (void)SvIOK_on(dstr);
2187 SvIVX(dstr) = SvIVX(sstr);
2190 else if (sflags & SVp_IOK) {
2191 (void)SvIOK_only(dstr);
2192 SvIVX(dstr) = SvIVX(sstr);
2195 (void)SvOK_off(dstr);
2201 sv_setsv_mg(SV *dstr, register SV *sstr)
2203 sv_setsv(dstr,sstr);
2208 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2210 register char *dptr;
2211 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2212 elicit a warning, but it won't hurt. */
2213 sv_check_thinkfirst(sv);
2218 if (SvTYPE(sv) >= SVt_PV) {
2219 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2223 sv_upgrade(sv, SVt_PV);
2225 SvGROW(sv, len + 1);
2227 Move(ptr,dptr,len,char);
2230 (void)SvPOK_only(sv); /* validate pointer */
2235 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2237 sv_setpvn(sv,ptr,len);
2242 sv_setpv(register SV *sv, register const char *ptr)
2244 register STRLEN len;
2246 sv_check_thinkfirst(sv);
2252 if (SvTYPE(sv) >= SVt_PV) {
2253 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2257 sv_upgrade(sv, SVt_PV);
2259 SvGROW(sv, len + 1);
2260 Move(ptr,SvPVX(sv),len+1,char);
2262 (void)SvPOK_only(sv); /* validate pointer */
2267 sv_setpv_mg(register SV *sv, register const char *ptr)
2274 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2276 sv_check_thinkfirst(sv);
2277 (void)SvUPGRADE(sv, SVt_PV);
2283 Safefree(SvPVX(sv));
2284 Renew(ptr, len+1, char);
2287 SvLEN_set(sv, len+1);
2289 (void)SvPOK_only(sv); /* validate pointer */
2294 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2296 sv_usepvn_mg(sv,ptr,len);
2301 sv_check_thinkfirst(register SV *sv)
2303 if (SvTHINKFIRST(sv)) {
2304 if (SvREADONLY(sv)) {
2306 if (curcop != &compiling)
2315 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2319 register STRLEN delta;
2321 if (!ptr || !SvPOKp(sv))
2323 sv_check_thinkfirst(sv);
2324 if (SvTYPE(sv) < SVt_PVIV)
2325 sv_upgrade(sv,SVt_PVIV);
2329 SvFLAGS(sv) |= SVf_OOK;
2331 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2332 delta = ptr - SvPVX(sv);
2340 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2345 junk = SvPV_force(sv, tlen);
2346 SvGROW(sv, tlen + len + 1);
2349 Move(ptr,SvPVX(sv)+tlen,len,char);
2352 (void)SvPOK_only(sv); /* validate pointer */
2357 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2359 sv_catpvn(sv,ptr,len);
2364 sv_catsv(SV *dstr, register SV *sstr)
2370 if (s = SvPV(sstr, len))
2371 sv_catpvn(dstr,s,len);
2375 sv_catsv_mg(SV *dstr, register SV *sstr)
2377 sv_catsv(dstr,sstr);
2382 sv_catpv(register SV *sv, register char *ptr)
2384 register STRLEN len;
2390 junk = SvPV_force(sv, tlen);
2392 SvGROW(sv, tlen + len + 1);
2395 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2397 (void)SvPOK_only(sv); /* validate pointer */
2402 sv_catpv_mg(register SV *sv, register char *ptr)
2404 sv_catpv_mg(sv,ptr);
2410 newSV(I32 x, STRLEN len)
2422 sv_upgrade(sv, SVt_PV);
2423 SvGROW(sv, len + 1);
2428 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2431 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2435 if (SvREADONLY(sv)) {
2437 if (curcop != &compiling && !strchr("gBf", how))
2440 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2441 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2448 (void)SvUPGRADE(sv, SVt_PVMG);
2450 Newz(702,mg, 1, MAGIC);
2451 mg->mg_moremagic = SvMAGIC(sv);
2454 if (!obj || obj == sv || how == '#' || how == 'r')
2458 mg->mg_obj = SvREFCNT_inc(obj);
2459 mg->mg_flags |= MGf_REFCOUNTED;
2462 mg->mg_len = namlen;
2465 mg->mg_ptr = savepvn(name, namlen);
2466 else if (namlen == HEf_SVKEY)
2467 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2471 mg->mg_virtual = &vtbl_sv;
2475 mg->mg_virtual = &vtbl_amagic;
2478 mg->mg_virtual = &vtbl_amagicelem;
2483 #endif /* OVERLOAD */
2485 mg->mg_virtual = &vtbl_bm;
2488 mg->mg_virtual = &vtbl_env;
2491 mg->mg_virtual = &vtbl_fm;
2494 mg->mg_virtual = &vtbl_envelem;
2497 mg->mg_virtual = &vtbl_mglob;
2500 mg->mg_virtual = &vtbl_isa;
2503 mg->mg_virtual = &vtbl_isaelem;
2506 mg->mg_virtual = &vtbl_nkeys;
2513 mg->mg_virtual = &vtbl_dbline;
2517 mg->mg_virtual = &vtbl_mutex;
2519 #endif /* USE_THREADS */
2520 #ifdef USE_LOCALE_COLLATE
2522 mg->mg_virtual = &vtbl_collxfrm;
2524 #endif /* USE_LOCALE_COLLATE */
2526 mg->mg_virtual = &vtbl_pack;
2530 mg->mg_virtual = &vtbl_packelem;
2533 mg->mg_virtual = &vtbl_regexp;
2536 mg->mg_virtual = &vtbl_sig;
2539 mg->mg_virtual = &vtbl_sigelem;
2542 mg->mg_virtual = &vtbl_taint;
2546 mg->mg_virtual = &vtbl_uvar;
2549 mg->mg_virtual = &vtbl_vec;
2552 mg->mg_virtual = &vtbl_substr;
2555 mg->mg_virtual = &vtbl_defelem;
2558 mg->mg_virtual = &vtbl_glob;
2561 mg->mg_virtual = &vtbl_arylen;
2564 mg->mg_virtual = &vtbl_pos;
2566 case '~': /* Reserved for use by extensions not perl internals. */
2567 /* Useful for attaching extension internal data to perl vars. */
2568 /* Note that multiple extensions may clash if magical scalars */
2569 /* etc holding private data from one are passed to another. */
2573 croak("Don't know how to handle magic of type '%c'", how);
2577 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2581 sv_unmagic(SV *sv, int type)
2585 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2588 for (mg = *mgp; mg; mg = *mgp) {
2589 if (mg->mg_type == type) {
2590 MGVTBL* vtbl = mg->mg_virtual;
2591 *mgp = mg->mg_moremagic;
2592 if (vtbl && (vtbl->svt_free != NULL))
2593 (VTBL->svt_free)(sv, mg);
2594 if (mg->mg_ptr && mg->mg_type != 'g')
2595 if (mg->mg_len >= 0)
2596 Safefree(mg->mg_ptr);
2597 else if (mg->mg_len == HEf_SVKEY)
2598 SvREFCNT_dec((SV*)mg->mg_ptr);
2599 if (mg->mg_flags & MGf_REFCOUNTED)
2600 SvREFCNT_dec(mg->mg_obj);
2604 mgp = &mg->mg_moremagic;
2608 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2615 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2619 register char *midend;
2620 register char *bigend;
2624 croak("Can't modify non-existent substring");
2625 SvPV_force(bigstr, na);
2627 i = littlelen - len;
2628 if (i > 0) { /* string might grow */
2629 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2630 mid = big + offset + len;
2631 midend = bigend = big + SvCUR(bigstr);
2634 while (midend > mid) /* shove everything down */
2635 *--bigend = *--midend;
2636 Move(little,big+offset,littlelen,char);
2642 Move(little,SvPVX(bigstr)+offset,len,char);
2647 big = SvPVX(bigstr);
2650 bigend = big + SvCUR(bigstr);
2652 if (midend > bigend)
2653 croak("panic: sv_insert");
2655 if (mid - big > bigend - midend) { /* faster to shorten from end */
2657 Move(little, mid, littlelen,char);
2660 i = bigend - midend;
2662 Move(midend, mid, i,char);
2666 SvCUR_set(bigstr, mid - big);
2669 else if (i = mid - big) { /* faster from front */
2670 midend -= littlelen;
2672 sv_chop(bigstr,midend-i);
2677 Move(little, mid, littlelen,char);
2679 else if (littlelen) {
2680 midend -= littlelen;
2681 sv_chop(bigstr,midend);
2682 Move(little,midend,littlelen,char);
2685 sv_chop(bigstr,midend);
2690 /* make sv point to what nstr did */
2693 sv_replace(register SV *sv, register SV *nsv)
2695 U32 refcnt = SvREFCNT(sv);
2696 sv_check_thinkfirst(sv);
2697 if (SvREFCNT(nsv) != 1)
2698 warn("Reference miscount in sv_replace()");
2699 if (SvMAGICAL(sv)) {
2703 sv_upgrade(nsv, SVt_PVMG);
2704 SvMAGIC(nsv) = SvMAGIC(sv);
2705 SvFLAGS(nsv) |= SvMAGICAL(sv);
2711 assert(!SvREFCNT(sv));
2712 StructCopy(nsv,sv,SV);
2713 SvREFCNT(sv) = refcnt;
2714 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2719 sv_clear(register SV *sv)
2722 assert(SvREFCNT(sv) == 0);
2726 if (defstash) { /* Still have a symbol table? */
2732 Zero(&tmpref, 1, SV);
2733 sv_upgrade(&tmpref, SVt_RV);
2735 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2736 SvREFCNT(&tmpref) = 1;
2739 stash = SvSTASH(sv);
2740 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2743 SvRV(&tmpref) = SvREFCNT_inc(sv);
2748 perl_call_sv((SV*)GvCV(destructor),
2749 G_DISCARD|G_EVAL|G_KEEPERR);
2753 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2755 del_XRV(SvANY(&tmpref));
2759 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2760 SvOBJECT_off(sv); /* Curse the object. */
2761 if (SvTYPE(sv) != SVt_PVIO)
2762 --sv_objcount; /* XXX Might want something more general */
2766 croak("DESTROY created new reference to dead object");
2767 /* DESTROY gave object new lease on life */
2771 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2773 switch (SvTYPE(sv)) {
2775 if (IoIFP(sv) != PerlIO_stdin() &&
2776 IoIFP(sv) != PerlIO_stdout() &&
2777 IoIFP(sv) != PerlIO_stderr())
2779 Safefree(IoTOP_NAME(sv));
2780 Safefree(IoFMT_NAME(sv));
2781 Safefree(IoBOTTOM_NAME(sv));
2797 Safefree(GvNAME(sv));
2798 SvREFCNT_dec(GvSTASH(sv));
2805 (void)SvOOK_off(sv);
2810 SvREFCNT_dec(SvRV(sv));
2811 else if (SvPVX(sv) && SvLEN(sv))
2812 Safefree(SvPVX(sv));
2822 switch (SvTYPE(sv)) {
2838 del_XPVIV(SvANY(sv));
2841 del_XPVNV(SvANY(sv));
2844 del_XPVMG(SvANY(sv));
2847 del_XPVLV(SvANY(sv));
2850 del_XPVAV(SvANY(sv));
2853 del_XPVHV(SvANY(sv));
2856 del_XPVCV(SvANY(sv));
2859 del_XPVGV(SvANY(sv));
2862 del_XPVBM(SvANY(sv));
2865 del_XPVFM(SvANY(sv));
2868 del_XPVIO(SvANY(sv));
2871 SvFLAGS(sv) &= SVf_BREAK;
2872 SvFLAGS(sv) |= SVTYPEMASK;
2888 if (SvREADONLY(sv)) {
2889 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2892 if (SvREFCNT(sv) == 0) {
2893 if (SvFLAGS(sv) & SVf_BREAK)
2895 if (in_clean_all) /* All is fair */
2897 warn("Attempt to free unreferenced scalar");
2900 if (--SvREFCNT(sv) > 0)
2904 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2914 sv_len(register SV *sv)
2923 len = mg_length(sv);
2925 junk = SvPV(sv, len);
2930 sv_eq(register SV *str1, register SV *str2)
2942 pv1 = SvPV(str1, cur1);
2947 pv2 = SvPV(str2, cur2);
2952 return memEQ(pv1, pv2, cur1);
2956 sv_cmp(register SV *str1, register SV *str2)
2959 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
2961 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
2965 return cur2 ? -1 : 0;
2970 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2973 return retval < 0 ? -1 : 1;
2978 return cur1 < cur2 ? -1 : 1;
2982 sv_cmp_locale(register SV *sv1, register SV *sv2)
2984 #ifdef USE_LOCALE_COLLATE
2990 if (collation_standard)
2994 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
2996 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
2998 if (!pv1 || !len1) {
3009 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3012 return retval < 0 ? -1 : 1;
3015 * When the result of collation is equality, that doesn't mean
3016 * that there are no differences -- some locales exclude some
3017 * characters from consideration. So to avoid false equalities,
3018 * we use the raw string as a tiebreaker.
3024 #endif /* USE_LOCALE_COLLATE */
3026 return sv_cmp(sv1, sv2);
3029 #ifdef USE_LOCALE_COLLATE
3031 * Any scalar variable may carry an 'o' magic that contains the
3032 * scalar data of the variable transformed to such a format that
3033 * a normal memory comparison can be used to compare the data
3034 * according to the locale settings.
3037 sv_collxfrm(SV *sv, STRLEN *nxp)
3041 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3042 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3047 Safefree(mg->mg_ptr);
3049 if ((xf = mem_collxfrm(s, len, &xlen))) {
3050 if (SvREADONLY(sv)) {
3053 return xf + sizeof(collation_ix);
3056 sv_magic(sv, 0, 'o', 0, 0);
3057 mg = mg_find(sv, 'o');
3070 if (mg && mg->mg_ptr) {
3072 return mg->mg_ptr + sizeof(collation_ix);
3080 #endif /* USE_LOCALE_COLLATE */
3083 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3088 register STDCHAR rslast;
3089 register STDCHAR *bp;
3093 sv_check_thinkfirst(sv);
3094 (void)SvUPGRADE(sv, SVt_PV);
3101 else if (RsPARA(rs)) {
3106 rsptr = SvPV(rs, rslen);
3107 rslast = rslen ? rsptr[rslen - 1] : '\0';
3109 if (RsPARA(rs)) { /* have to do this both before and after */
3110 do { /* to make sure file boundaries work right */
3113 i = PerlIO_getc(fp);
3117 PerlIO_ungetc(fp,i);
3123 /* See if we know enough about I/O mechanism to cheat it ! */
3125 /* This used to be #ifdef test - it is made run-time test for ease
3126 of abstracting out stdio interface. One call should be cheap
3127 enough here - and may even be a macro allowing compile
3131 if (PerlIO_fast_gets(fp)) {
3134 * We're going to steal some values from the stdio struct
3135 * and put EVERYTHING in the innermost loop into registers.
3137 register STDCHAR *ptr;
3141 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3142 /* An ungetc()d char is handled separately from the regular
3143 * buffer, so we getc() it back out and stuff it in the buffer.
3145 i = PerlIO_getc(fp);
3146 if (i == EOF) return 0;
3147 *(--((*fp)->_ptr)) = (unsigned char) i;
3151 /* Here is some breathtakingly efficient cheating */
3153 cnt = PerlIO_get_cnt(fp); /* get count into register */
3154 (void)SvPOK_only(sv); /* validate pointer */
3155 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3156 if (cnt > 80 && SvLEN(sv) > append) {
3157 shortbuffered = cnt - SvLEN(sv) + append + 1;
3158 cnt -= shortbuffered;
3162 /* remember that cnt can be negative */
3163 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3168 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3169 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3170 DEBUG_P(PerlIO_printf(Perl_debug_log,
3171 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3172 DEBUG_P(PerlIO_printf(Perl_debug_log,
3173 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3174 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3175 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3180 while (cnt > 0) { /* this | eat */
3182 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3183 goto thats_all_folks; /* screams | sed :-) */
3187 Copy(ptr, bp, cnt, char); /* this | eat */
3188 bp += cnt; /* screams | dust */
3189 ptr += cnt; /* louder | sed :-) */
3194 if (shortbuffered) { /* oh well, must extend */
3195 cnt = shortbuffered;
3197 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3199 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3200 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3204 DEBUG_P(PerlIO_printf(Perl_debug_log,
3205 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3206 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3207 DEBUG_P(PerlIO_printf(Perl_debug_log,
3208 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3209 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3210 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3211 /* This used to call 'filbuf' in stdio form, but as that behaves like
3212 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3213 another abstraction. */
3214 i = PerlIO_getc(fp); /* get more characters */
3215 DEBUG_P(PerlIO_printf(Perl_debug_log,
3216 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3217 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3218 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3219 cnt = PerlIO_get_cnt(fp);
3220 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3221 DEBUG_P(PerlIO_printf(Perl_debug_log,
3222 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3224 if (i == EOF) /* all done for ever? */
3225 goto thats_really_all_folks;
3227 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3229 SvGROW(sv, bpx + cnt + 2);
3230 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3232 *bp++ = i; /* store character from PerlIO_getc */
3234 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3235 goto thats_all_folks;
3239 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3240 memNE((char*)bp - rslen, rsptr, rslen))
3241 goto screamer; /* go back to the fray */
3242 thats_really_all_folks:
3244 cnt += shortbuffered;
3245 DEBUG_P(PerlIO_printf(Perl_debug_log,
3246 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3247 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3248 DEBUG_P(PerlIO_printf(Perl_debug_log,
3249 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3250 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3251 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3253 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3254 DEBUG_P(PerlIO_printf(Perl_debug_log,
3255 "Screamer: done, len=%ld, string=|%.*s|\n",
3256 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3260 /*The big, slow, and stupid way */
3265 register STDCHAR *bpe = buf + sizeof(buf);
3267 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3268 ; /* keep reading */
3272 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3273 /* Accomodate broken VAXC compiler, which applies U8 cast to
3274 * both args of ?: operator, causing EOF to change into 255
3276 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3280 sv_catpvn(sv, (char *) buf, cnt);
3282 sv_setpvn(sv, (char *) buf, cnt);
3284 if (i != EOF && /* joy */
3286 SvCUR(sv) < rslen ||
3287 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3291 * If we're reading from a TTY and we get a short read,
3292 * indicating that the user hit his EOF character, we need
3293 * to notice it now, because if we try to read from the TTY
3294 * again, the EOF condition will disappear.
3296 * The comparison of cnt to sizeof(buf) is an optimization
3297 * that prevents unnecessary calls to feof().
3301 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3306 if (RsPARA(rs)) { /* have to do this both before and after */
3307 while (i != EOF) { /* to make sure file boundaries work right */
3308 i = PerlIO_getc(fp);
3310 PerlIO_ungetc(fp,i);
3317 win32_strip_return(sv);
3320 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3325 sv_inc(register SV *sv)
3332 if (SvTHINKFIRST(sv)) {
3333 if (SvREADONLY(sv)) {
3335 if (curcop != &compiling)
3340 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3341 #endif /* OVERLOAD */
3347 flags = SvFLAGS(sv);
3348 if (flags & SVp_NOK) {
3349 (void)SvNOK_only(sv);
3353 if (flags & SVp_IOK) {
3354 if (SvIVX(sv) == IV_MAX)
3355 sv_setnv(sv, (double)IV_MAX + 1.0);
3357 (void)SvIOK_only(sv);
3362 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3363 if ((flags & SVTYPEMASK) < SVt_PVNV)
3364 sv_upgrade(sv, SVt_NV);
3366 (void)SvNOK_only(sv);
3370 while (isALPHA(*d)) d++;
3371 while (isDIGIT(*d)) d++;
3373 SET_NUMERIC_STANDARD();
3374 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3378 while (d >= SvPVX(sv)) {
3388 *(d--) -= 'z' - 'a' + 1;
3391 /* oh,oh, the number grew */
3392 SvGROW(sv, SvCUR(sv) + 2);
3394 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3403 sv_dec(register SV *sv)
3409 if (SvTHINKFIRST(sv)) {
3410 if (SvREADONLY(sv)) {
3412 if (curcop != &compiling)
3417 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3418 #endif /* OVERLOAD */
3424 flags = SvFLAGS(sv);
3425 if (flags & SVp_NOK) {
3427 (void)SvNOK_only(sv);
3430 if (flags & SVp_IOK) {
3431 if (SvIVX(sv) == IV_MIN)
3432 sv_setnv(sv, (double)IV_MIN - 1.0);
3434 (void)SvIOK_only(sv);
3439 if (!(flags & SVp_POK)) {
3440 if ((flags & SVTYPEMASK) < SVt_PVNV)
3441 sv_upgrade(sv, SVt_NV);
3443 (void)SvNOK_only(sv);
3446 SET_NUMERIC_STANDARD();
3447 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3450 /* Make a string that will exist for the duration of the expression
3451 * evaluation. Actually, it may have to last longer than that, but
3452 * hopefully we won't free it until it has been assigned to a
3453 * permanent location. */
3459 tmps_max += (tmps_max < 512) ? 128 : 512;
3460 Renew(tmps_stack, tmps_max, SV*);
3464 sv_mortalcopy(SV *oldstr)
3473 sv_setsv(sv,oldstr);
3474 if (++tmps_ix >= tmps_max)
3476 tmps_stack[tmps_ix] = sv;
3490 SvFLAGS(sv) = SVs_TEMP;
3491 if (++tmps_ix >= tmps_max)
3493 tmps_stack[tmps_ix] = sv;
3497 /* same thing without the copying */
3500 sv_2mortal(register SV *sv)
3505 if (SvREADONLY(sv) && curcop != &compiling)
3507 if (++tmps_ix >= tmps_max)
3509 tmps_stack[tmps_ix] = sv;
3515 newSVpv(char *s, STRLEN len)
3525 sv_setpvn(sv,s,len);
3530 newSVpvn(char *s, STRLEN len)
3538 sv_setpvn(sv,s,len);
3544 newSVpvf(const char* pat, ...)
3548 newSVpvf(pat, va_alist)
3561 va_start(args, pat);
3565 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3607 sv_upgrade(sv, SVt_RV);
3609 SvRV(sv) = SvREFCNT_inc(tmpRef);
3617 Perl_newRV_noinc(SV *tmpRef)
3622 SvREFCNT_dec(tmpRef);
3626 /* make an exact duplicate of old */
3629 newSVsv(register SV *old)
3635 if (SvTYPE(old) == SVTYPEMASK) {
3636 warn("semi-panic: attempt to dup freed string");
3654 sv_reset(register char *s, HV *stash)
3667 if (!*s) { /* reset ?? searches */
3668 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3669 pm->op_pmflags &= ~PMf_USED;
3674 /* reset variables */
3676 if (!HvARRAY(stash))
3679 Zero(todo, 256, char);
3686 for ( ; i <= max; i++) {
3689 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3690 for (entry = HvARRAY(stash)[i];
3692 entry = HeNEXT(entry)) {
3693 if (!todo[(U8)*HeKEY(entry)])
3695 gv = (GV*)HeVAL(entry);
3698 if (SvTYPE(sv) >= SVt_PV) {
3700 if (SvPVX(sv) != Nullch)
3707 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3709 #ifndef VMS /* VMS has no environ array */
3711 environ[0] = Nullch;
3725 switch (SvTYPE(sv)) {
3733 croak("Bad filehandle: %s", GvNAME(gv));
3737 croak(no_usym, "filehandle");
3739 return sv_2io(SvRV(sv));
3740 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3746 croak("Bad filehandle: %s", SvPV(sv,na));
3753 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3759 return *gvp = Nullgv, Nullcv;
3760 switch (SvTYPE(sv)) {
3780 if (SvTYPE(cv) != SVt_PVCV)
3781 croak("Not a subroutine reference");
3789 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3795 if (lref && !GvCVu(gv)) {
3798 tmpsv = NEWSV(704,0);
3799 gv_efullname3(tmpsv, gv, Nullch);
3800 newSUB(start_subparse(FALSE, 0),
3801 newSVOP(OP_CONST, 0, tmpsv),
3806 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3813 sv_true(register SV *sv)
3820 if ((tXpv = (XPV*)SvANY(sv)) &&
3821 (*tXpv->xpv_pv > '0' ||
3822 tXpv->xpv_cur > 1 ||
3823 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3830 return SvIVX(sv) != 0;
3833 return SvNVX(sv) != 0.0;
3835 return sv_2bool(sv);
3841 sv_iv(register SV *sv)
3849 sv_uv(register SV *sv)
3857 sv_nv(register SV *sv)
3865 sv_pvn(SV *sv, STRLEN *lp)
3871 return sv_2pv(sv, lp);
3875 sv_pvn_force(SV *sv, STRLEN *lp)
3879 if (SvREADONLY(sv)) {
3881 if (curcop != &compiling)
3889 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3890 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3897 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3898 op_name[op->op_type]);
3903 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3908 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3909 SvGROW(sv, len + 1);
3910 Move(s,SvPVX(sv),len,char);
3915 SvPOK_on(sv); /* validate pointer */
3917 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3918 (unsigned long)sv,SvPVX(sv)));
3925 sv_reftype(SV *sv, int ob)
3927 if (ob && SvOBJECT(sv))
3928 return HvNAME(SvSTASH(sv));
3930 switch (SvTYPE(sv)) {
3944 case SVt_PVLV: return "LVALUE";
3945 case SVt_PVAV: return "ARRAY";
3946 case SVt_PVHV: return "HASH";
3947 case SVt_PVCV: return "CODE";
3948 case SVt_PVGV: return "GLOB";
3949 case SVt_PVFM: return "FORMLINE";
3950 default: return "UNKNOWN";
3971 sv_isa(SV *sv, char *name)
3983 return strEQ(HvNAME(SvSTASH(sv)), name);
3987 newSVrv(SV *rv, char *classname)
3997 sv_check_thinkfirst(rv);
4000 #endif /* OVERLOAD */
4002 if (SvTYPE(rv) < SVt_RV)
4003 sv_upgrade(rv, SVt_RV);
4006 SvRV(rv) = SvREFCNT_inc(sv);
4010 HV* stash = gv_stashpv(classname, TRUE);
4011 (void)sv_bless(rv, stash);
4017 sv_setref_pv(SV *rv, char *classname, void *pv)
4020 sv_setsv(rv, &sv_undef);
4024 sv_setiv(newSVrv(rv,classname), (IV)pv);
4029 sv_setref_iv(SV *rv, char *classname, IV iv)
4031 sv_setiv(newSVrv(rv,classname), iv);
4036 sv_setref_nv(SV *rv, char *classname, double nv)
4038 sv_setnv(newSVrv(rv,classname), nv);
4043 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4045 sv_setpvn(newSVrv(rv,classname), pv, n);
4050 sv_bless(SV *sv, HV *stash)
4055 croak("Can't bless non-reference value");
4057 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4058 if (SvREADONLY(tmpRef))
4060 if (SvOBJECT(tmpRef)) {
4061 if (SvTYPE(tmpRef) != SVt_PVIO)
4063 SvREFCNT_dec(SvSTASH(tmpRef));
4066 SvOBJECT_on(tmpRef);
4067 if (SvTYPE(tmpRef) != SVt_PVIO)
4069 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4070 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4077 #endif /* OVERLOAD */
4085 assert(SvTYPE(sv) == SVt_PVGV);
4089 sv_unmagic(sv, '*');
4090 Safefree(GvNAME(sv));
4092 SvFLAGS(sv) &= ~SVTYPEMASK;
4093 SvFLAGS(sv) |= SVt_PVMG;
4103 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4106 sv_2mortal(rv); /* Schedule for freeing later */
4112 sv_magic((sv), Nullsv, 't', Nullch, 0);
4118 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4119 MAGIC *mg = mg_find(sv, 't');
4128 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4129 MAGIC *mg = mg_find(sv, 't');
4130 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4137 sv_setpviv(SV *sv, IV iv)
4140 char buf[TYPE_DIGITS(UV)];
4141 char *ptr = buf + sizeof(buf);
4146 sv_setpvn(sv, "", 0);
4155 *--ptr = '0' + (uv % 10);
4157 len = (buf + sizeof(buf)) - ptr;
4158 /* taking advantage of SvCUR(sv) == 0 */
4159 SvGROW(sv, sign + len + 1);
4163 memcpy(p, ptr, len);
4166 SvCUR(sv) = p - SvPVX(sv);
4171 sv_setpviv_mg(SV *sv, IV iv)
4179 sv_setpvf(SV *sv, const char* pat, ...)
4183 sv_setpvf(sv, pat, va_alist)
4191 va_start(args, pat);
4195 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4202 sv_setpvf_mg(SV *sv, const char* pat, ...)
4206 sv_setpvf_mg(sv, pat, va_alist)
4214 va_start(args, pat);
4218 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4225 sv_catpvf(SV *sv, const char* pat, ...)
4229 sv_catpvf(sv, pat, va_alist)
4237 va_start(args, pat);
4241 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4247 sv_catpvf_mg(SV *sv, const char* pat, ...)
4251 sv_catpvf_mg(sv, pat, va_alist)
4259 va_start(args, pat);
4263 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4269 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4271 sv_setpvn(sv, "", 0);
4272 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4276 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4284 static char nullstr[] = "(null)";
4286 /* no matter what, this is a string now */
4287 (void)SvPV_force(sv, origlen);
4289 /* special-case "", "%s", and "%_" */
4292 if (patlen == 2 && pat[0] == '%') {
4296 char *s = va_arg(*args, char*);
4297 sv_catpv(sv, s ? s : nullstr);
4299 else if (svix < svmax)
4300 sv_catsv(sv, *svargs);
4304 sv_catsv(sv, va_arg(*args, SV*));
4307 /* See comment on '_' below */
4312 patend = (char*)pat + patlen;
4313 for (p = (char*)pat; p < patend; p = q) {
4321 bool has_precis = FALSE;
4325 STRLEN esignlen = 0;
4327 char *eptr = Nullch;
4329 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4331 static char *efloatbuf = Nullch;
4332 static STRLEN efloatsize = 0;
4344 for (q = p; q < patend && *q != '%'; ++q) ;
4346 sv_catpvn(sv, p, q - p);
4384 case '1': case '2': case '3':
4385 case '4': case '5': case '6':
4386 case '7': case '8': case '9':
4389 width = width * 10 + (*q++ - '0');
4394 i = va_arg(*args, int);
4396 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4398 width = (i < 0) ? -i : i;
4409 i = va_arg(*args, int);
4411 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4412 precis = (i < 0) ? 0 : i;
4418 precis = precis * 10 + (*q++ - '0');
4427 #if 0 /* when quads have better support within Perl */
4428 if (*(q + 1) == 'l') {
4454 c = va_arg(*args, int);
4456 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4463 eptr = va_arg(*args, char*);
4465 elen = strlen(eptr);
4468 elen = sizeof nullstr - 1;
4471 else if (svix < svmax)
4472 eptr = SvPVx(svargs[svix++], elen);
4477 * The "%_" hack might have to be changed someday,
4478 * if ISO or ANSI decide to use '_' for something.
4479 * So we keep it hidden from users' code.
4483 eptr = SvPVx(va_arg(*args, SV*), elen);
4486 if (has_precis && elen > precis)
4494 uv = (UV)va_arg(*args, void*);
4496 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4507 case 'h': iv = (short)va_arg(*args, int); break;
4508 default: iv = va_arg(*args, int); break;
4509 case 'l': iv = va_arg(*args, long); break;
4510 case 'V': iv = va_arg(*args, IV); break;
4514 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4516 case 'h': iv = (short)iv; break;
4517 default: iv = (int)iv; break;
4518 case 'l': iv = (long)iv; break;
4525 esignbuf[esignlen++] = plus;
4529 esignbuf[esignlen++] = '-';
4555 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4556 default: uv = va_arg(*args, unsigned); break;
4557 case 'l': uv = va_arg(*args, unsigned long); break;
4558 case 'V': uv = va_arg(*args, UV); break;
4562 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4564 case 'h': uv = (unsigned short)uv; break;
4565 default: uv = (unsigned)uv; break;
4566 case 'l': uv = (unsigned long)uv; break;
4572 eptr = ebuf + sizeof ebuf;
4576 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4582 esignbuf[esignlen++] = '0';
4583 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4589 *--eptr = '0' + dig;
4591 if (alt && *eptr != '0')
4594 default: /* it had better be ten or less */
4597 *--eptr = '0' + dig;
4598 } while (uv /= base);
4601 elen = (ebuf + sizeof ebuf) - eptr;
4602 if (has_precis && precis > elen)
4603 zeros = precis - elen;
4606 /* FLOATING POINT */
4609 c = 'f'; /* maybe %F isn't supported here */
4615 /* This is evil, but floating point is even more evil */
4618 nv = va_arg(*args, double);
4620 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4623 if (c != 'e' && c != 'E') {
4625 (void)frexp(nv, &i);
4626 if (i == PERL_INT_MIN)
4627 die("panic: frexp");
4629 need = BIT_DIGITS(i);
4631 need += has_precis ? precis : 6; /* known default */
4635 need += 20; /* fudge factor */
4636 if (efloatsize < need) {
4637 Safefree(efloatbuf);
4638 efloatsize = need + 20; /* more fudge */
4639 New(906, efloatbuf, efloatsize, char);
4642 eptr = ebuf + sizeof ebuf;
4647 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4652 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4664 (void)sprintf(efloatbuf, eptr, nv);
4667 elen = strlen(efloatbuf);
4671 * User-defined locales may include arbitrary characters.
4672 * And, unfortunately, some system may alloc the "C" locale
4673 * to be overridden by a malicious user.
4676 *used_locale = TRUE;
4677 #endif /* LC_NUMERIC */
4684 i = SvCUR(sv) - origlen;
4687 case 'h': *(va_arg(*args, short*)) = i; break;
4688 default: *(va_arg(*args, int*)) = i; break;
4689 case 'l': *(va_arg(*args, long*)) = i; break;
4690 case 'V': *(va_arg(*args, IV*)) = i; break;
4693 else if (svix < svmax)
4694 sv_setuv(svargs[svix++], (UV)i);
4695 continue; /* not "break" */
4701 if (!args && dowarn &&
4702 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4703 SV *msg = sv_newmortal();
4704 sv_setpvf(msg, "Invalid conversion in %s: ",
4705 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4707 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4710 sv_catpv(msg, "end of string");
4711 warn("%_", msg); /* yes, this is reentrant */
4714 /* output mangled stuff ... */
4720 /* ... right here, because formatting flags should not apply */
4721 SvGROW(sv, SvCUR(sv) + elen + 1);
4723 memcpy(p, eptr, elen);
4726 SvCUR(sv) = p - SvPVX(sv);
4727 continue; /* not "break" */
4730 have = esignlen + zeros + elen;
4731 need = (have > width ? have : width);
4734 SvGROW(sv, SvCUR(sv) + need + 1);
4736 if (esignlen && fill == '0') {
4737 for (i = 0; i < esignlen; i++)
4741 memset(p, fill, gap);
4744 if (esignlen && fill != '0') {
4745 for (i = 0; i < esignlen; i++)
4749 for (i = zeros; i; i--)
4753 memcpy(p, eptr, elen);
4757 memset(p, ' ', gap);
4761 SvCUR(sv) = p - SvPVX(sv);
4769 SV *d = sv_newmortal();
4775 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4779 flags = SvFLAGS(sv);
4782 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4783 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4784 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4785 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4786 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4787 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4788 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4789 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4790 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4791 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4793 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4794 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4795 if (flags & SVf_POK) sv_catpv(d, "POK,");
4796 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4797 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4798 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4799 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4802 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4803 #endif /* OVERLOAD */
4804 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4805 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4806 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4807 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4812 if (CvANON(sv)) sv_catpv(d, "ANON,");
4813 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4814 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4815 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4816 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4819 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4820 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4823 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4824 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4825 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4826 if (GvIMPORTED(sv)) {
4827 sv_catpv(d, "IMPORT");
4828 if (GvIMPORTED(sv) == GVf_IMPORTED)
4829 sv_catpv(d, "ALL,");
4832 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4833 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4834 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4835 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4840 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4841 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4845 if (*(SvEND(d) - 1) == ',')
4846 SvPVX(d)[--SvCUR(d)] = '\0';
4850 PerlIO_printf(Perl_debug_log, "SV = ");
4853 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4856 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4859 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4862 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4865 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4868 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4871 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4874 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4877 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4880 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4883 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4886 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4889 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4892 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4895 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4898 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4901 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4904 if (type >= SVt_PVIV || type == SVt_IV)
4905 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4906 if (type >= SVt_PVNV || type == SVt_NV) {
4907 SET_NUMERIC_STANDARD();
4908 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4911 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4917 if (type <= SVt_PVLV) {
4919 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4920 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4922 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4924 if (type >= SVt_PVMG) {
4926 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4929 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4933 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4934 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4935 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4936 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4937 sv_dump(LvTARG(sv));
4940 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4941 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4942 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
4943 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4944 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4945 flags = AvFLAGS(sv);
4947 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4948 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4949 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4950 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4951 SvCUR(d) ? SvPVX(d) + 1 : "");
4954 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4955 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4956 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4957 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4958 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4959 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4961 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4963 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4967 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4970 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4971 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4972 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4973 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4974 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4975 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4976 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4977 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4979 PerlIO_printf(Perl_debug_log, "\n");
4981 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4982 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4983 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4984 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4986 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4987 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4988 #endif /* USE_THREADS */
4989 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
4990 (unsigned long)CvFLAGS(sv));
4991 if (type == SVt_PVFM)
4992 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4995 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4996 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4997 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4998 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4999 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5000 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5001 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5002 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5003 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5004 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5005 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5006 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5007 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5008 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5009 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5010 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5013 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5014 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5015 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5016 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5017 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5018 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5019 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5020 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5021 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5022 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5023 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5024 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5025 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5026 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5027 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5028 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));