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 */
78 #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv)
85 (p) = (SV*)safemalloc(sizeof(SV)); \
94 Safefree((char*)(p)); \
101 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
103 #define REG_REPLACE(sv,a,b) \
105 void* p = sv->sv_any; \
106 I32 h = REGHASH(sv, regsize); \
108 while (registry[i] != (a)) { \
109 if (++i >= regsize) \
112 die("SV registry bug"); \
117 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
118 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
124 if (sv_count >= (regsize >> 1))
126 SV **oldreg = registry;
127 I32 oldsize = regsize;
129 regsize = regsize ? ((regsize << 2) + 1) : 2037;
130 Newz(707, registry, regsize, SV*);
135 for (i = 0; i < oldsize; ++i) {
136 SV* oldsv = oldreg[i];
162 for (i = 0; i < regsize; ++i) {
163 SV* sv = registry[i];
170 sv_add_arena(ptr, size, flags)
175 if (!(flags & SVf_FAKE))
182 * "A time to plant, and a time to uproot what was planted..."
185 #define plant_SV(p) \
187 SvANY(p) = (void *)sv_root; \
188 SvFLAGS(p) = SVTYPEMASK; \
193 /* sv_mutex must be held while calling uproot_SV() */
194 #define uproot_SV(p) \
197 sv_root = (SV*)SvANY(p); \
201 #define new_SV(p) do { \
212 #define del_SV(p) do { \
229 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
231 svend = &sva[SvREFCNT(sva)];
232 if (p >= sv && p < svend)
236 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
243 #else /* ! DEBUGGING */
245 #define del_SV(p) plant_SV(p)
247 #endif /* DEBUGGING */
250 sv_add_arena(char *ptr, U32 size, U32 flags)
255 Zero(sva, size, char);
257 /* The first SV in an arena isn't an SV. */
258 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
259 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
260 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
265 svend = &sva[SvREFCNT(sva) - 1];
268 SvANY(sv) = (void *)(SV*)(sv + 1);
269 SvFLAGS(sv) = SVTYPEMASK;
273 SvFLAGS(sv) = SVTYPEMASK;
276 /* sv_mutex must be held while calling more_sv() */
283 sv_add_arena(nice_chunk, nice_chunk_size, 0);
287 char *chunk; /* must use New here to match call to */
288 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
289 sv_add_arena(chunk, 1008, 0);
302 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
303 svend = &sva[SvREFCNT(sva)];
304 for (sv = sva + 1; sv < svend; ++sv) {
305 if (SvTYPE(sv) != SVTYPEMASK)
314 do_report_used(SV *sv)
316 if (SvTYPE(sv) != SVTYPEMASK) {
317 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
318 PerlIO_printf(PerlIO_stderr(), "****\n");
326 visit(FUNC_NAME_TO_PTR(do_report_used));
330 do_clean_objs(SV *sv)
334 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
335 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
341 /* XXX Might want to check arrays, etc. */
344 #ifndef DISABLE_DESTRUCTOR_KLUDGE
346 do_clean_named_objs(SV *sv)
348 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
349 do_clean_objs(GvSV(sv));
356 in_clean_objs = TRUE;
357 #ifndef DISABLE_DESTRUCTOR_KLUDGE
358 visit(FUNC_NAME_TO_PTR(do_clean_named_objs));
360 visit(FUNC_NAME_TO_PTR(do_clean_objs));
361 in_clean_objs = FALSE;
367 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
368 SvFLAGS(sv) |= SVf_BREAK;
376 visit(FUNC_NAME_TO_PTR(do_clean_all));
377 in_clean_all = FALSE;
386 /* Free arenas here, but be careful about fake ones. (We assume
387 contiguity of the fake ones with the corresponding real ones.) */
389 for (sva = sv_arenaroot; sva; sva = svanext) {
390 svanext = (SV*) SvANY(sva);
391 while (svanext && SvFAKE(svanext))
392 svanext = (SV*) SvANY(svanext);
395 Safefree((void *)sva);
409 * See comment in more_xiv() -- RAM.
411 xiv_root = (IV**)*xiv;
412 return (XPVIV*)((char*)xiv - sizeof(XPV));
420 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
421 *xiv = (IV *)xiv_root;
429 register IV** xivend;
431 New(705, ptr, 1008/sizeof(XPV), XPV);
432 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
433 xiv_arenaroot = ptr; /* to keep Purify happy */
436 xivend = &xiv[1008 / sizeof(IV *) - 1];
437 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
439 while (xiv < xivend) {
440 *xiv = (IV *)(xiv + 1);
453 xnv_root = *(double**)xnv;
454 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
462 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
463 *(double**)xnv = xnv_root;
470 register double* xnv;
471 register double* xnvend;
472 New(711, xnv, 1008/sizeof(double), double);
473 xnvend = &xnv[1008 / sizeof(double) - 1];
474 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
476 while (xnv < xnvend) {
477 *(double**)xnv = (double*)(xnv + 1);
490 xrv_root = (XRV*)xrv->xrv_rv;
499 p->xrv_rv = (SV*)xrv_root;
507 register XRV* xrvend;
508 New(712, xrv_root, 1008/sizeof(XRV), XRV);
510 xrvend = &xrv[1008 / sizeof(XRV) - 1];
511 while (xrv < xrvend) {
512 xrv->xrv_rv = (SV*)(xrv + 1);
525 xpv_root = (XPV*)xpv->xpv_pv;
534 p->xpv_pv = (char*)xpv_root;
542 register XPV* xpvend;
543 New(713, xpv_root, 1008/sizeof(XPV), XPV);
545 xpvend = &xpv[1008 / sizeof(XPV) - 1];
546 while (xpv < xpvend) {
547 xpv->xpv_pv = (char*)(xpv + 1);
555 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
556 #define del_XIV(p) Safefree((char*)p)
558 #define new_XIV() (void*)new_xiv()
559 #define del_XIV(p) del_xiv((XPVIV*) p)
563 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
564 #define del_XNV(p) Safefree((char*)p)
566 #define new_XNV() (void*)new_xnv()
567 #define del_XNV(p) del_xnv((XPVNV*) p)
571 #define new_XRV() (void*)safemalloc(sizeof(XRV))
572 #define del_XRV(p) Safefree((char*)p)
574 #define new_XRV() (void*)new_xrv()
575 #define del_XRV(p) del_xrv((XRV*) p)
579 #define new_XPV() (void*)safemalloc(sizeof(XPV))
580 #define del_XPV(p) Safefree((char*)p)
582 #define new_XPV() (void*)new_xpv()
583 #define del_XPV(p) del_xpv((XPV *)p)
587 # define my_safemalloc(s) safemalloc(s)
588 # define my_safefree(s) free(s)
591 my_safemalloc(MEM_SIZE size)
594 New(717, p, size, char);
597 # define my_safefree(s) Safefree(s)
600 #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
601 #define del_XPVIV(p) my_safefree((char*)p)
603 #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
604 #define del_XPVNV(p) my_safefree((char*)p)
606 #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
607 #define del_XPVMG(p) my_safefree((char*)p)
609 #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
610 #define del_XPVLV(p) my_safefree((char*)p)
612 #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
613 #define del_XPVAV(p) my_safefree((char*)p)
615 #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
616 #define del_XPVHV(p) my_safefree((char*)p)
618 #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
619 #define del_XPVCV(p) my_safefree((char*)p)
621 #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
622 #define del_XPVGV(p) my_safefree((char*)p)
624 #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
625 #define del_XPVBM(p) my_safefree((char*)p)
627 #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
628 #define del_XPVFM(p) my_safefree((char*)p)
630 #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
631 #define del_XPVIO(p) my_safefree((char*)p)
634 sv_upgrade(register SV *sv, U32 mt)
644 if (SvTYPE(sv) == mt)
650 switch (SvTYPE(sv)) {
665 nv = (double)SvIVX(sv);
671 else if (mt < SVt_PVIV)
688 pv = (char*)SvRV(sv);
692 nv = (double)(unsigned long)pv;
708 else if (mt == SVt_NV)
719 del_XPVIV(SvANY(sv));
729 del_XPVNV(SvANY(sv));
739 del_XPVMG(SvANY(sv));
742 croak("Can't upgrade that kind of scalar");
747 croak("Can't upgrade to undef");
749 SvANY(sv) = new_XIV();
753 SvANY(sv) = new_XNV();
757 SvANY(sv) = new_XRV();
761 SvANY(sv) = new_XPV();
767 SvANY(sv) = new_XPVIV();
777 SvANY(sv) = new_XPVNV();
785 SvANY(sv) = new_XPVMG();
795 SvANY(sv) = new_XPVLV();
809 SvANY(sv) = new_XPVAV();
824 SvANY(sv) = new_XPVHV();
840 SvANY(sv) = new_XPVCV();
841 Zero(SvANY(sv), 1, XPVCV);
851 SvANY(sv) = new_XPVGV();
866 SvANY(sv) = new_XPVBM();
879 SvANY(sv) = new_XPVFM();
880 Zero(SvANY(sv), 1, XPVFM);
890 SvANY(sv) = new_XPVIO();
891 Zero(SvANY(sv), 1, XPVIO);
902 SvFLAGS(sv) &= ~SVTYPEMASK;
911 SV *t = sv_newmortal();
921 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
925 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
926 if (sv == &sv_undef) {
927 sv_catpv(t, "SV_UNDEF");
928 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
929 SVs_GMG|SVs_SMG|SVs_RMG)) &&
933 else if (sv == &sv_no) {
934 sv_catpv(t, "SV_NO");
935 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
936 SVs_GMG|SVs_SMG|SVs_RMG)) &&
937 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
944 sv_catpv(t, "SV_YES");
945 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
946 SVs_GMG|SVs_SMG|SVs_RMG)) &&
947 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
950 SvPVX(sv) && *SvPVX(sv) == '1' &&
956 else if (SvREFCNT(sv) == 0) {
962 if (SvCUR(t) + unref > 10) {
963 SvCUR(t) = unref + 3;
971 switch (SvTYPE(sv)) {
973 sv_catpv(t, "FREED");
977 sv_catpv(t, "UNDEF");
1001 sv_catpv(t, "PVLV");
1011 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1013 sv_catpv(t, "CV()");
1031 sv_catpv(t, "(null)");
1033 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1035 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1037 else if (SvNOKp(sv)) {
1038 SET_NUMERIC_STANDARD();
1039 sv_catpvf(t, "(%g)",SvNVX(sv));
1041 else if (SvIOKp(sv))
1042 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1056 sv_backoff(register SV *sv)
1060 char *s = SvPVX(sv);
1061 SvLEN(sv) += SvIVX(sv);
1062 SvPVX(sv) -= SvIVX(sv);
1064 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1066 SvFLAGS(sv) &= ~SVf_OOK;
1072 sv_grow(register SV *sv, register I32 newlen)
1074 sv_grow(SV* sv, unsigned long newlen)
1079 #ifdef HAS_64K_LIMIT
1080 if (newlen >= 0x10000) {
1081 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1084 #endif /* HAS_64K_LIMIT */
1087 if (SvTYPE(sv) < SVt_PV) {
1088 sv_upgrade(sv, SVt_PV);
1091 else if (SvOOK(sv)) { /* pv is offset? */
1094 if (newlen > SvLEN(sv))
1095 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1096 #ifdef HAS_64K_LIMIT
1097 if (newlen >= 0x10000)
1103 if (newlen > SvLEN(sv)) { /* need more room? */
1105 Renew(s,newlen,char);
1107 New(703,s,newlen,char);
1109 SvLEN_set(sv, newlen);
1115 sv_setiv(register SV *sv, IV i)
1117 SV_CHECK_THINKFIRST(sv);
1118 switch (SvTYPE(sv)) {
1120 sv_upgrade(sv, SVt_IV);
1123 sv_upgrade(sv, SVt_PVNV);
1127 sv_upgrade(sv, SVt_PVIV);
1143 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1144 op_desc[op->op_type]);
1147 (void)SvIOK_only(sv); /* validate number */
1153 sv_setiv_mg(register SV *sv, IV i)
1160 sv_setuv(register SV *sv, UV u)
1165 sv_setnv(sv, (double)u);
1169 sv_setuv_mg(register SV *sv, UV u)
1176 sv_setnv(register SV *sv, double num)
1178 SV_CHECK_THINKFIRST(sv);
1179 switch (SvTYPE(sv)) {
1182 sv_upgrade(sv, SVt_NV);
1187 sv_upgrade(sv, SVt_PVNV);
1194 (void)SvOOK_off(sv);
1209 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1210 op_name[op->op_type]);
1214 (void)SvNOK_only(sv); /* validate number */
1219 sv_setnv_mg(register SV *sv, double num)
1226 not_a_number(SV *sv)
1232 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1233 /* each *s can expand to 4 chars + "...\0",
1234 i.e. need room for 8 chars */
1236 for (s = SvPVX(sv); *s && d < limit; s++) {
1238 if (ch & 128 && !isPRINT_LC(ch)) {
1247 else if (ch == '\r') {
1251 else if (ch == '\f') {
1255 else if (ch == '\\') {
1259 else if (isPRINT_LC(ch))
1274 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1275 op_name[op->op_type]);
1277 warn("Argument \"%s\" isn't numeric", tmpbuf);
1281 sv_2iv(register SV *sv)
1285 if (SvGMAGICAL(sv)) {
1290 if (SvNVX(sv) < 0.0)
1291 return I_V(SvNVX(sv));
1293 return (IV) U_V(SvNVX(sv));
1295 if (SvPOKp(sv) && SvLEN(sv))
1298 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1306 if (SvTHINKFIRST(sv)) {
1310 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1311 return SvIV(tmpstr);
1312 #endif /* OVERLOAD */
1313 return (IV)SvRV(sv);
1315 if (SvREADONLY(sv)) {
1317 if (SvNVX(sv) < 0.0)
1318 return I_V(SvNVX(sv));
1320 return (IV) U_V(SvNVX(sv));
1322 if (SvPOKp(sv) && SvLEN(sv))
1329 switch (SvTYPE(sv)) {
1331 sv_upgrade(sv, SVt_IV);
1334 sv_upgrade(sv, SVt_PVIV);
1337 sv_upgrade(sv, SVt_PVNV);
1342 if (SvNVX(sv) < 0.0)
1343 SvIVX(sv) = I_V(SvNVX(sv));
1345 SvUVX(sv) = U_V(SvNVX(sv));
1347 else if (SvPOKp(sv) && SvLEN(sv)) {
1349 SvIVX(sv) = asIV(sv);
1353 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1357 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1358 (unsigned long)sv,(long)SvIVX(sv)));
1363 sv_2uv(register SV *sv)
1367 if (SvGMAGICAL(sv)) {
1372 return U_V(SvNVX(sv));
1373 if (SvPOKp(sv) && SvLEN(sv))
1376 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1384 if (SvTHINKFIRST(sv)) {
1388 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1389 return SvUV(tmpstr);
1390 #endif /* OVERLOAD */
1391 return (UV)SvRV(sv);
1393 if (SvREADONLY(sv)) {
1395 return U_V(SvNVX(sv));
1397 if (SvPOKp(sv) && SvLEN(sv))
1404 switch (SvTYPE(sv)) {
1406 sv_upgrade(sv, SVt_IV);
1409 sv_upgrade(sv, SVt_PVIV);
1412 sv_upgrade(sv, SVt_PVNV);
1417 SvUVX(sv) = U_V(SvNVX(sv));
1419 else if (SvPOKp(sv) && SvLEN(sv)) {
1421 SvUVX(sv) = asUV(sv);
1424 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1431 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1432 (unsigned long)sv,SvUVX(sv)));
1437 sv_2nv(register SV *sv)
1441 if (SvGMAGICAL(sv)) {
1445 if (SvPOKp(sv) && SvLEN(sv)) {
1446 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1448 SET_NUMERIC_STANDARD();
1449 return atof(SvPVX(sv));
1452 return (double)SvIVX(sv);
1454 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1462 if (SvTHINKFIRST(sv)) {
1466 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1467 return SvNV(tmpstr);
1468 #endif /* OVERLOAD */
1469 return (double)(unsigned long)SvRV(sv);
1471 if (SvREADONLY(sv)) {
1472 if (SvPOKp(sv) && SvLEN(sv)) {
1473 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1475 SET_NUMERIC_STANDARD();
1476 return atof(SvPVX(sv));
1479 return (double)SvIVX(sv);
1485 if (SvTYPE(sv) < SVt_NV) {
1486 if (SvTYPE(sv) == SVt_IV)
1487 sv_upgrade(sv, SVt_PVNV);
1489 sv_upgrade(sv, SVt_NV);
1490 DEBUG_c(SET_NUMERIC_STANDARD());
1491 DEBUG_c(PerlIO_printf(Perl_debug_log,
1492 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1494 else if (SvTYPE(sv) < SVt_PVNV)
1495 sv_upgrade(sv, SVt_PVNV);
1497 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1499 SvNVX(sv) = (double)SvIVX(sv);
1501 else if (SvPOKp(sv) && SvLEN(sv)) {
1502 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1504 SET_NUMERIC_STANDARD();
1505 SvNVX(sv) = atof(SvPVX(sv));
1509 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1514 DEBUG_c(SET_NUMERIC_STANDARD());
1515 DEBUG_c(PerlIO_printf(Perl_debug_log,
1516 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1523 I32 numtype = looks_like_number(sv);
1527 return atol(SvPVX(sv));
1528 if (!numtype && dowarn)
1530 SET_NUMERIC_STANDARD();
1531 d = atof(SvPVX(sv));
1541 I32 numtype = looks_like_number(sv);
1545 return strtoul(SvPVX(sv), Null(char**), 10);
1547 if (!numtype && dowarn)
1549 SET_NUMERIC_STANDARD();
1550 return U_V(atof(SvPVX(sv)));
1554 looks_like_number(SV *sv)
1557 register char *send;
1558 register char *sbegin;
1566 else if (SvPOKp(sv))
1567 sbegin = SvPV(sv, len);
1570 send = sbegin + len;
1575 if (*s == '+' || *s == '-')
1578 /* next must be digit or '.' */
1582 } while (isDIGIT(*s));
1585 while (isDIGIT(*s)) /* optional digits after "." */
1589 else if (*s == '.') {
1591 /* no digits before '.' means we need digits after it */
1595 } while (isDIGIT(*s));
1604 * we return 1 if the number can be converted to _integer_ with atol()
1605 * and 2 if you need (int)atof().
1609 /* we can have an optional exponent part */
1610 if (*s == 'e' || *s == 'E') {
1613 if (*s == '+' || *s == '-')
1618 } while (isDIGIT(*s));
1627 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1633 sv_2pv(register SV *sv, STRLEN *lp)
1638 char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
1644 if (SvGMAGICAL(sv)) {
1651 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1656 SET_NUMERIC_STANDARD();
1657 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1662 if (dowarn && !(SvFLAGS(sv) & SVs_PADTMP)) {
1671 if (SvTHINKFIRST(sv)) {
1675 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1676 return SvPV(tmpstr,*lp);
1677 #endif /* OVERLOAD */
1682 switch (SvTYPE(sv)) {
1691 case SVt_PVMG: s = "SCALAR"; break;
1692 case SVt_PVLV: s = "LVALUE"; break;
1693 case SVt_PVAV: s = "ARRAY"; break;
1694 case SVt_PVHV: s = "HASH"; break;
1695 case SVt_PVCV: s = "CODE"; break;
1696 case SVt_PVGV: s = "GLOB"; break;
1697 case SVt_PVFM: s = "FORMLINE"; break;
1698 case SVt_PVIO: s = "IO"; break;
1699 default: s = "UNKNOWN"; break;
1703 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1706 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1712 if (SvREADONLY(sv)) {
1714 SET_NUMERIC_STANDARD();
1715 Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf);
1720 (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
1730 (void)SvUPGRADE(sv, SVt_PV);
1732 if (SvTYPE(sv) < SVt_PVNV)
1733 sv_upgrade(sv, SVt_PVNV);
1736 olderrno = errno; /* some Xenix systems wipe out errno here */
1738 if (SvNVX(sv) == 0.0)
1739 (void)strcpy(s,"0");
1743 SET_NUMERIC_STANDARD();
1744 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1747 #ifdef FIXNEGATIVEZERO
1748 if (*s == '-' && s[1] == '0' && !s[2])
1757 else if (SvIOKp(sv)) {
1758 U32 oldIOK = SvIOK(sv);
1759 if (SvTYPE(sv) < SVt_PVIV)
1760 sv_upgrade(sv, SVt_PVIV);
1761 olderrno = errno; /* some Xenix systems wipe out errno here */
1762 sv_setpviv(sv, SvIVX(sv));
1772 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1777 *lp = s - SvPVX(sv);
1780 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1784 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1785 /* Sneaky stuff here */
1789 tsv = newSVpv(tmpbuf, 0);
1805 len = strlen(tmpbuf);
1807 #ifdef FIXNEGATIVEZERO
1808 if (len == 2 && t[0] == '-' && t[1] == '0') {
1813 (void)SvUPGRADE(sv, SVt_PV);
1815 s = SvGROW(sv, len + 1);
1823 /* This function is only called on magical items */
1825 sv_2bool(register SV *sv)
1837 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1838 return SvTRUE(tmpsv);
1840 #endif /* OVERLOAD */
1841 return SvRV(sv) != 0;
1844 register XPV* Xpvtmp;
1845 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1846 (*Xpvtmp->xpv_pv > '0' ||
1847 Xpvtmp->xpv_cur > 1 ||
1848 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1855 return SvIVX(sv) != 0;
1858 return SvNVX(sv) != 0.0;
1865 /* Note: sv_setsv() should not be called with a source string that needs
1866 * to be reused, since it may destroy the source string if it is marked
1871 sv_setsv(SV *dstr, register SV *sstr)
1874 register U32 sflags;
1880 SV_CHECK_THINKFIRST(dstr);
1883 stype = SvTYPE(sstr);
1884 dtype = SvTYPE(dstr);
1886 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1887 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1888 sv_setpvn(dstr, "", 0);
1889 (void)SvPOK_only(dstr);
1890 dtype = SvTYPE(dstr);
1895 #endif /* OVERLOAD */
1896 /* There's a lot of redundancy below but we're going for speed here */
1900 (void)SvOK_off(dstr);
1903 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1905 sv_upgrade(dstr, SVt_IV);
1906 else if (dtype == SVt_NV)
1907 sv_upgrade(dstr, SVt_PVNV);
1909 sv_upgrade(dstr, SVt_PVIV);
1913 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1915 sv_upgrade(dstr, SVt_NV);
1917 sv_upgrade(dstr, SVt_PVNV);
1922 sv_upgrade(dstr, SVt_RV);
1923 else if (dtype == SVt_PVGV &&
1924 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1927 if (curcop->cop_stash != GvSTASH(dstr))
1928 GvIMPORTED_on(dstr);
1938 sv_upgrade(dstr, SVt_PV);
1941 if (dtype < SVt_PVIV)
1942 sv_upgrade(dstr, SVt_PVIV);
1945 if (dtype < SVt_PVNV)
1946 sv_upgrade(dstr, SVt_PVNV);
1953 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1954 op_name[op->op_type]);
1956 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1960 if (dtype <= SVt_PVGV) {
1962 if (dtype != SVt_PVGV) {
1963 char *name = GvNAME(sstr);
1964 STRLEN len = GvNAMELEN(sstr);
1965 sv_upgrade(dstr, SVt_PVGV);
1966 sv_magic(dstr, dstr, '*', name, len);
1967 GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
1968 GvNAME(dstr) = savepvn(name, len);
1969 GvNAMELEN(dstr) = len;
1970 SvFAKE_on(dstr); /* can coerce to non-glob */
1972 /* ahem, death to those who redefine active sort subs */
1973 else if (curstack == sortstack
1974 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1975 croak("Can't redefine active sort subroutine %s",
1977 (void)SvOK_off(dstr);
1978 GvINTRO_off(dstr); /* one-shot flag */
1980 GvGP(dstr) = gp_ref(GvGP(sstr));
1982 if (curcop->cop_stash != GvSTASH(dstr))
1983 GvIMPORTED_on(dstr);
1990 if (SvGMAGICAL(sstr)) {
1992 if (SvTYPE(sstr) != stype) {
1993 stype = SvTYPE(sstr);
1994 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1998 if (stype == SVt_PVLV)
1999 SvUPGRADE(dstr, SVt_PVNV);
2001 SvUPGRADE(dstr, stype);
2004 sflags = SvFLAGS(sstr);
2006 if (sflags & SVf_ROK) {
2007 if (dtype >= SVt_PV) {
2008 if (dtype == SVt_PVGV) {
2010 SV *sref = SvREFCNT_inc(SvRV(sstr));
2012 int intro = GvINTRO(dstr);
2016 GvGP(dstr)->gp_refcnt--;
2017 GvINTRO_off(dstr); /* one-shot flag */
2018 Newz(602,gp, 1, GP);
2019 GvGP(dstr) = gp_ref(gp);
2020 GvSV(dstr) = NEWSV(72,0);
2021 GvLINE(dstr) = curcop->cop_line;
2022 GvEGV(dstr) = (GV*)dstr;
2025 switch (SvTYPE(sref)) {
2028 SAVESPTR(GvAV(dstr));
2030 dref = (SV*)GvAV(dstr);
2031 GvAV(dstr) = (AV*)sref;
2032 if (curcop->cop_stash != GvSTASH(dstr))
2033 GvIMPORTED_AV_on(dstr);
2037 SAVESPTR(GvHV(dstr));
2039 dref = (SV*)GvHV(dstr);
2040 GvHV(dstr) = (HV*)sref;
2041 if (curcop->cop_stash != GvSTASH(dstr))
2042 GvIMPORTED_HV_on(dstr);
2046 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2047 SvREFCNT_dec(GvCV(dstr));
2048 GvCV(dstr) = Nullcv;
2049 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2052 SAVESPTR(GvCV(dstr));
2055 dref = (SV*)GvCV(dstr);
2056 if (GvCV(dstr) != (CV*)sref) {
2057 CV* cv = GvCV(dstr);
2059 if (!GvCVGEN((GV*)dstr) &&
2060 (CvROOT(cv) || CvXSUB(cv)))
2062 /* ahem, death to those who redefine
2063 * active sort subs */
2064 if (curstack == sortstack &&
2065 sortcop == CvSTART(cv))
2067 "Can't redefine active sort subroutine %s",
2068 GvENAME((GV*)dstr));
2069 if (cv_const_sv(cv))
2070 warn("Constant subroutine %s redefined",
2071 GvENAME((GV*)dstr));
2073 if (!(CvGV(cv) && GvSTASH(CvGV(cv))
2074 && HvNAME(GvSTASH(CvGV(cv)))
2075 && strEQ(HvNAME(GvSTASH(CvGV(cv))),
2077 warn("Subroutine %s redefined",
2078 GvENAME((GV*)dstr));
2081 cv_ckproto(cv, (GV*)dstr,
2082 SvPOK(sref) ? SvPVX(sref) : Nullch);
2084 GvCV(dstr) = (CV*)sref;
2085 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2086 GvASSUMECV_on(dstr);
2089 if (curcop->cop_stash != GvSTASH(dstr))
2090 GvIMPORTED_CV_on(dstr);
2094 SAVESPTR(GvIOp(dstr));
2096 dref = (SV*)GvIOp(dstr);
2097 GvIOp(dstr) = (IO*)sref;
2101 SAVESPTR(GvSV(dstr));
2103 dref = (SV*)GvSV(dstr);
2105 if (curcop->cop_stash != GvSTASH(dstr))
2106 GvIMPORTED_SV_on(dstr);
2117 (void)SvOOK_off(dstr); /* backoff */
2118 Safefree(SvPVX(dstr));
2119 SvLEN(dstr)=SvCUR(dstr)=0;
2122 (void)SvOK_off(dstr);
2123 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2125 if (sflags & SVp_NOK) {
2127 SvNVX(dstr) = SvNVX(sstr);
2129 if (sflags & SVp_IOK) {
2130 (void)SvIOK_on(dstr);
2131 SvIVX(dstr) = SvIVX(sstr);
2134 if (SvAMAGIC(sstr)) {
2137 #endif /* OVERLOAD */
2139 else if (sflags & SVp_POK) {
2142 * Check to see if we can just swipe the string. If so, it's a
2143 * possible small lose on short strings, but a big win on long ones.
2144 * It might even be a win on short strings if SvPVX(dstr)
2145 * has to be allocated and SvPVX(sstr) has to be freed.
2148 if (SvTEMP(sstr) && /* slated for free anyway? */
2149 SvREFCNT(sstr) == 1 && /* and no other references to it? */
2150 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2152 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2154 SvFLAGS(dstr) &= ~SVf_OOK;
2155 Safefree(SvPVX(dstr) - SvIVX(dstr));
2158 Safefree(SvPVX(dstr));
2160 (void)SvPOK_only(dstr);
2161 SvPV_set(dstr, SvPVX(sstr));
2162 SvLEN_set(dstr, SvLEN(sstr));
2163 SvCUR_set(dstr, SvCUR(sstr));
2165 (void)SvOK_off(sstr);
2166 SvPV_set(sstr, Nullch);
2171 else { /* have to copy actual string */
2172 STRLEN len = SvCUR(sstr);
2174 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2175 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2176 SvCUR_set(dstr, len);
2177 *SvEND(dstr) = '\0';
2178 (void)SvPOK_only(dstr);
2181 if (sflags & SVp_NOK) {
2183 SvNVX(dstr) = SvNVX(sstr);
2185 if (sflags & SVp_IOK) {
2186 (void)SvIOK_on(dstr);
2187 SvIVX(dstr) = SvIVX(sstr);
2190 else if (sflags & SVp_NOK) {
2191 SvNVX(dstr) = SvNVX(sstr);
2192 (void)SvNOK_only(dstr);
2194 (void)SvIOK_on(dstr);
2195 SvIVX(dstr) = SvIVX(sstr);
2198 else if (sflags & SVp_IOK) {
2199 (void)SvIOK_only(dstr);
2200 SvIVX(dstr) = SvIVX(sstr);
2203 (void)SvOK_off(dstr);
2209 sv_setsv_mg(SV *dstr, register SV *sstr)
2211 sv_setsv(dstr,sstr);
2216 sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len)
2218 register char *dptr;
2219 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2220 elicit a warning, but it won't hurt. */
2221 SV_CHECK_THINKFIRST(sv);
2226 if (SvTYPE(sv) >= SVt_PV) {
2227 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2231 sv_upgrade(sv, SVt_PV);
2233 SvGROW(sv, len + 1);
2235 Move(ptr,dptr,len,char);
2238 (void)SvPOK_only(sv); /* validate pointer */
2243 sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len)
2245 sv_setpvn(sv,ptr,len);
2250 sv_setpv(register SV *sv, register const char *ptr)
2252 register STRLEN len;
2254 SV_CHECK_THINKFIRST(sv);
2260 if (SvTYPE(sv) >= SVt_PV) {
2261 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2265 sv_upgrade(sv, SVt_PV);
2267 SvGROW(sv, len + 1);
2268 Move(ptr,SvPVX(sv),len+1,char);
2270 (void)SvPOK_only(sv); /* validate pointer */
2275 sv_setpv_mg(register SV *sv, register const char *ptr)
2282 sv_usepvn(register SV *sv, register char *ptr, register STRLEN len)
2284 SV_CHECK_THINKFIRST(sv);
2285 (void)SvUPGRADE(sv, SVt_PV);
2291 Safefree(SvPVX(sv));
2292 Renew(ptr, len+1, char);
2295 SvLEN_set(sv, len+1);
2297 (void)SvPOK_only(sv); /* validate pointer */
2302 sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2304 sv_usepvn(sv,ptr,len);
2309 sv_check_thinkfirst(register SV *sv)
2311 if (SvREADONLY(sv)) {
2313 if (curcop != &compiling)
2321 sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
2325 register STRLEN delta;
2327 if (!ptr || !SvPOKp(sv))
2329 SV_CHECK_THINKFIRST(sv);
2330 if (SvTYPE(sv) < SVt_PVIV)
2331 sv_upgrade(sv,SVt_PVIV);
2335 SvFLAGS(sv) |= SVf_OOK;
2337 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2338 delta = ptr - SvPVX(sv);
2346 sv_catpvn(register SV *sv, register char *ptr, register STRLEN len)
2351 junk = SvPV_force(sv, tlen);
2352 SvGROW(sv, tlen + len + 1);
2355 Move(ptr,SvPVX(sv)+tlen,len,char);
2358 (void)SvPOK_only(sv); /* validate pointer */
2363 sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len)
2365 sv_catpvn(sv,ptr,len);
2370 sv_catsv(SV *dstr, register SV *sstr)
2376 if (s = SvPV(sstr, len))
2377 sv_catpvn(dstr,s,len);
2381 sv_catsv_mg(SV *dstr, register SV *sstr)
2383 sv_catsv(dstr,sstr);
2388 sv_catpv(register SV *sv, register char *ptr)
2390 register STRLEN len;
2396 junk = SvPV_force(sv, tlen);
2398 SvGROW(sv, tlen + len + 1);
2401 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2403 (void)SvPOK_only(sv); /* validate pointer */
2408 sv_catpv_mg(register SV *sv, register char *ptr)
2416 newSV(I32 x, STRLEN len)
2428 sv_upgrade(sv, SVt_PV);
2429 SvGROW(sv, len + 1);
2434 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2437 sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen)
2441 if (SvREADONLY(sv)) {
2443 if (curcop != &compiling && !strchr("gBf", how))
2446 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2447 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2454 (void)SvUPGRADE(sv, SVt_PVMG);
2456 Newz(702,mg, 1, MAGIC);
2457 mg->mg_moremagic = SvMAGIC(sv);
2460 if (!obj || obj == sv || how == '#' || how == 'r')
2464 mg->mg_obj = SvREFCNT_inc(obj);
2465 mg->mg_flags |= MGf_REFCOUNTED;
2468 mg->mg_len = namlen;
2471 mg->mg_ptr = savepvn(name, namlen);
2472 else if (namlen == HEf_SVKEY)
2473 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2477 mg->mg_virtual = &vtbl_sv;
2481 mg->mg_virtual = &vtbl_amagic;
2484 mg->mg_virtual = &vtbl_amagicelem;
2489 #endif /* OVERLOAD */
2491 mg->mg_virtual = &vtbl_bm;
2494 mg->mg_virtual = &vtbl_env;
2497 mg->mg_virtual = &vtbl_fm;
2500 mg->mg_virtual = &vtbl_envelem;
2503 mg->mg_virtual = &vtbl_mglob;
2506 mg->mg_virtual = &vtbl_isa;
2509 mg->mg_virtual = &vtbl_isaelem;
2512 mg->mg_virtual = &vtbl_nkeys;
2519 mg->mg_virtual = &vtbl_dbline;
2523 mg->mg_virtual = &vtbl_mutex;
2525 #endif /* USE_THREADS */
2526 #ifdef USE_LOCALE_COLLATE
2528 mg->mg_virtual = &vtbl_collxfrm;
2530 #endif /* USE_LOCALE_COLLATE */
2532 mg->mg_virtual = &vtbl_pack;
2536 mg->mg_virtual = &vtbl_packelem;
2539 mg->mg_virtual = &vtbl_regexp;
2542 mg->mg_virtual = &vtbl_sig;
2545 mg->mg_virtual = &vtbl_sigelem;
2548 mg->mg_virtual = &vtbl_taint;
2552 mg->mg_virtual = &vtbl_uvar;
2555 mg->mg_virtual = &vtbl_vec;
2558 mg->mg_virtual = &vtbl_substr;
2561 mg->mg_virtual = &vtbl_defelem;
2564 mg->mg_virtual = &vtbl_glob;
2567 mg->mg_virtual = &vtbl_arylen;
2570 mg->mg_virtual = &vtbl_pos;
2572 case '~': /* Reserved for use by extensions not perl internals. */
2573 /* Useful for attaching extension internal data to perl vars. */
2574 /* Note that multiple extensions may clash if magical scalars */
2575 /* etc holding private data from one are passed to another. */
2579 croak("Don't know how to handle magic of type '%c'", how);
2583 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2587 sv_unmagic(SV *sv, int type)
2591 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2594 for (mg = *mgp; mg; mg = *mgp) {
2595 if (mg->mg_type == type) {
2596 MGVTBL* vtbl = mg->mg_virtual;
2597 *mgp = mg->mg_moremagic;
2598 if (vtbl && (vtbl->svt_free != NULL))
2599 (VTBL->svt_free)(sv, mg);
2600 if (mg->mg_ptr && mg->mg_type != 'g')
2601 if (mg->mg_len >= 0)
2602 Safefree(mg->mg_ptr);
2603 else if (mg->mg_len == HEf_SVKEY)
2604 SvREFCNT_dec((SV*)mg->mg_ptr);
2605 if (mg->mg_flags & MGf_REFCOUNTED)
2606 SvREFCNT_dec(mg->mg_obj);
2610 mgp = &mg->mg_moremagic;
2614 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2621 sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
2625 register char *midend;
2626 register char *bigend;
2630 croak("Can't modify non-existent substring");
2631 SvPV_force(bigstr, na);
2633 i = littlelen - len;
2634 if (i > 0) { /* string might grow */
2635 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2636 mid = big + offset + len;
2637 midend = bigend = big + SvCUR(bigstr);
2640 while (midend > mid) /* shove everything down */
2641 *--bigend = *--midend;
2642 Move(little,big+offset,littlelen,char);
2648 Move(little,SvPVX(bigstr)+offset,len,char);
2653 big = SvPVX(bigstr);
2656 bigend = big + SvCUR(bigstr);
2658 if (midend > bigend)
2659 croak("panic: sv_insert");
2661 if (mid - big > bigend - midend) { /* faster to shorten from end */
2663 Move(little, mid, littlelen,char);
2666 i = bigend - midend;
2668 Move(midend, mid, i,char);
2672 SvCUR_set(bigstr, mid - big);
2675 else if (i = mid - big) { /* faster from front */
2676 midend -= littlelen;
2678 sv_chop(bigstr,midend-i);
2683 Move(little, mid, littlelen,char);
2685 else if (littlelen) {
2686 midend -= littlelen;
2687 sv_chop(bigstr,midend);
2688 Move(little,midend,littlelen,char);
2691 sv_chop(bigstr,midend);
2696 /* make sv point to what nstr did */
2699 sv_replace(register SV *sv, register SV *nsv)
2701 U32 refcnt = SvREFCNT(sv);
2702 SV_CHECK_THINKFIRST(sv);
2703 if (SvREFCNT(nsv) != 1)
2704 warn("Reference miscount in sv_replace()");
2705 if (SvMAGICAL(sv)) {
2709 sv_upgrade(nsv, SVt_PVMG);
2710 SvMAGIC(nsv) = SvMAGIC(sv);
2711 SvFLAGS(nsv) |= SvMAGICAL(sv);
2717 assert(!SvREFCNT(sv));
2718 StructCopy(nsv,sv,SV);
2719 SvREFCNT(sv) = refcnt;
2720 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2725 sv_clear(register SV *sv)
2728 assert(SvREFCNT(sv) == 0);
2732 if (defstash) { /* Still have a symbol table? */
2738 Zero(&tmpref, 1, SV);
2739 sv_upgrade(&tmpref, SVt_RV);
2741 SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
2742 SvREFCNT(&tmpref) = 1;
2745 stash = SvSTASH(sv);
2746 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2749 SvRV(&tmpref) = SvREFCNT_inc(sv);
2754 perl_call_sv((SV*)GvCV(destructor),
2755 G_DISCARD|G_EVAL|G_KEEPERR);
2759 } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
2761 del_XRV(SvANY(&tmpref));
2765 SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
2766 SvOBJECT_off(sv); /* Curse the object. */
2767 if (SvTYPE(sv) != SVt_PVIO)
2768 --sv_objcount; /* XXX Might want something more general */
2772 croak("DESTROY created new reference to dead object");
2773 /* DESTROY gave object new lease on life */
2777 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2779 switch (SvTYPE(sv)) {
2781 if (IoIFP(sv) != PerlIO_stdin() &&
2782 IoIFP(sv) != PerlIO_stdout() &&
2783 IoIFP(sv) != PerlIO_stderr())
2785 Safefree(IoTOP_NAME(sv));
2786 Safefree(IoFMT_NAME(sv));
2787 Safefree(IoBOTTOM_NAME(sv));
2803 Safefree(GvNAME(sv));
2804 SvREFCNT_dec(GvSTASH(sv));
2811 (void)SvOOK_off(sv);
2816 SvREFCNT_dec(SvRV(sv));
2817 else if (SvPVX(sv) && SvLEN(sv))
2818 Safefree(SvPVX(sv));
2828 switch (SvTYPE(sv)) {
2844 del_XPVIV(SvANY(sv));
2847 del_XPVNV(SvANY(sv));
2850 del_XPVMG(SvANY(sv));
2853 del_XPVLV(SvANY(sv));
2856 del_XPVAV(SvANY(sv));
2859 del_XPVHV(SvANY(sv));
2862 del_XPVCV(SvANY(sv));
2865 del_XPVGV(SvANY(sv));
2868 del_XPVBM(SvANY(sv));
2871 del_XPVFM(SvANY(sv));
2874 del_XPVIO(SvANY(sv));
2877 SvFLAGS(sv) &= SVf_BREAK;
2878 SvFLAGS(sv) |= SVTYPEMASK;
2885 ATOMIC_INC(SvREFCNT(sv));
2892 int refcount_is_zero;
2896 if (SvREADONLY(sv)) {
2897 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2900 if (SvREFCNT(sv) == 0) {
2901 if (SvFLAGS(sv) & SVf_BREAK)
2903 if (in_clean_all) /* All is fair */
2905 warn("Attempt to free unreferenced scalar");
2908 ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
2909 if (!refcount_is_zero)
2913 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2923 sv_len(register SV *sv)
2932 len = mg_length(sv);
2934 junk = SvPV(sv, len);
2939 sv_eq(register SV *str1, register SV *str2)
2951 pv1 = SvPV(str1, cur1);
2956 pv2 = SvPV(str2, cur2);
2961 return memEQ(pv1, pv2, cur1);
2965 sv_cmp(register SV *str1, register SV *str2)
2968 char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
2970 char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
2974 return cur2 ? -1 : 0;
2979 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2982 return retval < 0 ? -1 : 1;
2987 return cur1 < cur2 ? -1 : 1;
2991 sv_cmp_locale(register SV *sv1, register SV *sv2)
2993 #ifdef USE_LOCALE_COLLATE
2999 if (collation_standard)
3003 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
3005 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
3007 if (!pv1 || !len1) {
3018 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
3021 return retval < 0 ? -1 : 1;
3024 * When the result of collation is equality, that doesn't mean
3025 * that there are no differences -- some locales exclude some
3026 * characters from consideration. So to avoid false equalities,
3027 * we use the raw string as a tiebreaker.
3033 #endif /* USE_LOCALE_COLLATE */
3035 return sv_cmp(sv1, sv2);
3038 #ifdef USE_LOCALE_COLLATE
3040 * Any scalar variable may carry an 'o' magic that contains the
3041 * scalar data of the variable transformed to such a format that
3042 * a normal memory comparison can be used to compare the data
3043 * according to the locale settings.
3046 sv_collxfrm(SV *sv, STRLEN *nxp)
3050 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
3051 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3056 Safefree(mg->mg_ptr);
3058 if ((xf = mem_collxfrm(s, len, &xlen))) {
3059 if (SvREADONLY(sv)) {
3062 return xf + sizeof(collation_ix);
3065 sv_magic(sv, 0, 'o', 0, 0);
3066 mg = mg_find(sv, 'o');
3079 if (mg && mg->mg_ptr) {
3081 return mg->mg_ptr + sizeof(collation_ix);
3089 #endif /* USE_LOCALE_COLLATE */
3092 sv_gets(register SV *sv, register PerlIO *fp, I32 append)
3097 register STDCHAR rslast;
3098 register STDCHAR *bp;
3102 SV_CHECK_THINKFIRST(sv);
3103 (void)SvUPGRADE(sv, SVt_PV);
3110 else if (RsPARA(rs)) {
3115 rsptr = SvPV(rs, rslen);
3116 rslast = rslen ? rsptr[rslen - 1] : '\0';
3118 if (RsPARA(rs)) { /* have to do this both before and after */
3119 do { /* to make sure file boundaries work right */
3122 i = PerlIO_getc(fp);
3126 PerlIO_ungetc(fp,i);
3132 /* See if we know enough about I/O mechanism to cheat it ! */
3134 /* This used to be #ifdef test - it is made run-time test for ease
3135 of abstracting out stdio interface. One call should be cheap
3136 enough here - and may even be a macro allowing compile
3140 if (PerlIO_fast_gets(fp)) {
3143 * We're going to steal some values from the stdio struct
3144 * and put EVERYTHING in the innermost loop into registers.
3146 register STDCHAR *ptr;
3150 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3151 /* An ungetc()d char is handled separately from the regular
3152 * buffer, so we getc() it back out and stuff it in the buffer.
3154 i = PerlIO_getc(fp);
3155 if (i == EOF) return 0;
3156 *(--((*fp)->_ptr)) = (unsigned char) i;
3160 /* Here is some breathtakingly efficient cheating */
3162 cnt = PerlIO_get_cnt(fp); /* get count into register */
3163 (void)SvPOK_only(sv); /* validate pointer */
3164 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3165 if (cnt > 80 && SvLEN(sv) > append) {
3166 shortbuffered = cnt - SvLEN(sv) + append + 1;
3167 cnt -= shortbuffered;
3171 /* remember that cnt can be negative */
3172 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3177 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3178 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3179 DEBUG_P(PerlIO_printf(Perl_debug_log,
3180 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3181 DEBUG_P(PerlIO_printf(Perl_debug_log,
3182 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3183 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3184 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3189 while (cnt > 0) { /* this | eat */
3191 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3192 goto thats_all_folks; /* screams | sed :-) */
3196 Copy(ptr, bp, cnt, char); /* this | eat */
3197 bp += cnt; /* screams | dust */
3198 ptr += cnt; /* louder | sed :-) */
3203 if (shortbuffered) { /* oh well, must extend */
3204 cnt = shortbuffered;
3206 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3208 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3209 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3213 DEBUG_P(PerlIO_printf(Perl_debug_log,
3214 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3215 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3216 DEBUG_P(PerlIO_printf(Perl_debug_log,
3217 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3218 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3219 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3220 /* This used to call 'filbuf' in stdio form, but as that behaves like
3221 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3222 another abstraction. */
3223 i = PerlIO_getc(fp); /* get more characters */
3224 DEBUG_P(PerlIO_printf(Perl_debug_log,
3225 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3226 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3227 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3228 cnt = PerlIO_get_cnt(fp);
3229 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3230 DEBUG_P(PerlIO_printf(Perl_debug_log,
3231 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3233 if (i == EOF) /* all done for ever? */
3234 goto thats_really_all_folks;
3236 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3238 SvGROW(sv, bpx + cnt + 2);
3239 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3241 *bp++ = i; /* store character from PerlIO_getc */
3243 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3244 goto thats_all_folks;
3248 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3249 memNE((char*)bp - rslen, rsptr, rslen))
3250 goto screamer; /* go back to the fray */
3251 thats_really_all_folks:
3253 cnt += shortbuffered;
3254 DEBUG_P(PerlIO_printf(Perl_debug_log,
3255 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3256 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3257 DEBUG_P(PerlIO_printf(Perl_debug_log,
3258 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3259 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3260 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3262 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3263 DEBUG_P(PerlIO_printf(Perl_debug_log,
3264 "Screamer: done, len=%ld, string=|%.*s|\n",
3265 (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3269 /*The big, slow, and stupid way */
3274 register STDCHAR *bpe = buf + sizeof(buf);
3276 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3277 ; /* keep reading */
3281 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3282 /* Accomodate broken VAXC compiler, which applies U8 cast to
3283 * both args of ?: operator, causing EOF to change into 255
3285 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3289 sv_catpvn(sv, (char *) buf, cnt);
3291 sv_setpvn(sv, (char *) buf, cnt);
3293 if (i != EOF && /* joy */
3295 SvCUR(sv) < rslen ||
3296 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3300 * If we're reading from a TTY and we get a short read,
3301 * indicating that the user hit his EOF character, we need
3302 * to notice it now, because if we try to read from the TTY
3303 * again, the EOF condition will disappear.
3305 * The comparison of cnt to sizeof(buf) is an optimization
3306 * that prevents unnecessary calls to feof().
3310 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3315 if (RsPARA(rs)) { /* have to do this both before and after */
3316 while (i != EOF) { /* to make sure file boundaries work right */
3317 i = PerlIO_getc(fp);
3319 PerlIO_ungetc(fp,i);
3326 win32_strip_return(sv);
3329 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3334 sv_inc(register SV *sv)
3341 if (SvTHINKFIRST(sv)) {
3342 if (SvREADONLY(sv)) {
3344 if (curcop != &compiling)
3349 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3350 #endif /* OVERLOAD */
3356 flags = SvFLAGS(sv);
3357 if (flags & SVp_NOK) {
3358 (void)SvNOK_only(sv);
3362 if (flags & SVp_IOK) {
3363 if (SvIVX(sv) == IV_MAX)
3364 sv_setnv(sv, (double)IV_MAX + 1.0);
3366 (void)SvIOK_only(sv);
3371 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3372 if ((flags & SVTYPEMASK) < SVt_PVNV)
3373 sv_upgrade(sv, SVt_NV);
3375 (void)SvNOK_only(sv);
3379 while (isALPHA(*d)) d++;
3380 while (isDIGIT(*d)) d++;
3382 SET_NUMERIC_STANDARD();
3383 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3387 while (d >= SvPVX(sv)) {
3397 *(d--) -= 'z' - 'a' + 1;
3400 /* oh,oh, the number grew */
3401 SvGROW(sv, SvCUR(sv) + 2);
3403 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3412 sv_dec(register SV *sv)
3418 if (SvTHINKFIRST(sv)) {
3419 if (SvREADONLY(sv)) {
3421 if (curcop != &compiling)
3426 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3427 #endif /* OVERLOAD */
3433 flags = SvFLAGS(sv);
3434 if (flags & SVp_NOK) {
3436 (void)SvNOK_only(sv);
3439 if (flags & SVp_IOK) {
3440 if (SvIVX(sv) == IV_MIN)
3441 sv_setnv(sv, (double)IV_MIN - 1.0);
3443 (void)SvIOK_only(sv);
3448 if (!(flags & SVp_POK)) {
3449 if ((flags & SVTYPEMASK) < SVt_PVNV)
3450 sv_upgrade(sv, SVt_NV);
3452 (void)SvNOK_only(sv);
3455 SET_NUMERIC_STANDARD();
3456 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3459 /* Make a string that will exist for the duration of the expression
3460 * evaluation. Actually, it may have to last longer than that, but
3461 * hopefully we won't free it until it has been assigned to a
3462 * permanent location. */
3468 tmps_max += (tmps_max < 512) ? 128 : 512;
3469 Renew(tmps_stack, tmps_max, SV*);
3473 sv_mortalcopy(SV *oldstr)
3482 sv_setsv(sv,oldstr);
3483 if (++tmps_ix >= tmps_max)
3485 tmps_stack[tmps_ix] = sv;
3499 SvFLAGS(sv) = SVs_TEMP;
3500 if (++tmps_ix >= tmps_max)
3502 tmps_stack[tmps_ix] = sv;
3506 /* same thing without the copying */
3509 sv_2mortal(register SV *sv)
3514 if (SvREADONLY(sv) && curcop != &compiling)
3516 if (++tmps_ix >= tmps_max)
3518 tmps_stack[tmps_ix] = sv;
3524 newSVpv(char *s, STRLEN len)
3534 sv_setpvn(sv,s,len);
3539 newSVpvn(char *s, STRLEN len)
3547 sv_setpvn(sv,s,len);
3553 newSVpvf(const char* pat, ...)
3557 newSVpvf(pat, va_alist)
3570 va_start(args, pat);
3574 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3616 sv_upgrade(sv, SVt_RV);
3618 SvRV(sv) = SvREFCNT_inc(tmpRef);
3626 Perl_newRV_noinc(SV *tmpRef)
3631 SvREFCNT_dec(tmpRef);
3635 /* make an exact duplicate of old */
3638 newSVsv(register SV *old)
3644 if (SvTYPE(old) == SVTYPEMASK) {
3645 warn("semi-panic: attempt to dup freed string");
3663 sv_reset(register char *s, HV *stash)
3676 if (!*s) { /* reset ?? searches */
3677 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3678 pm->op_pmflags &= ~PMf_USED;
3683 /* reset variables */
3685 if (!HvARRAY(stash))
3688 Zero(todo, 256, char);
3695 for ( ; i <= max; i++) {
3698 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3699 for (entry = HvARRAY(stash)[i];
3701 entry = HeNEXT(entry)) {
3702 if (!todo[(U8)*HeKEY(entry)])
3704 gv = (GV*)HeVAL(entry);
3707 if (SvTYPE(sv) >= SVt_PV) {
3709 if (SvPVX(sv) != Nullch)
3716 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3718 #ifndef VMS /* VMS has no environ array */
3720 environ[0] = Nullch;
3734 switch (SvTYPE(sv)) {
3742 croak("Bad filehandle: %s", GvNAME(gv));
3746 croak(no_usym, "filehandle");
3748 return sv_2io(SvRV(sv));
3749 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3755 croak("Bad filehandle: %s", SvPV(sv,na));
3762 sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref)
3768 return *gvp = Nullgv, Nullcv;
3769 switch (SvTYPE(sv)) {
3789 if (SvTYPE(cv) != SVt_PVCV)
3790 croak("Not a subroutine reference");
3798 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3804 if (lref && !GvCVu(gv)) {
3807 tmpsv = NEWSV(704,0);
3808 gv_efullname3(tmpsv, gv, Nullch);
3809 newSUB(start_subparse(FALSE, 0),
3810 newSVOP(OP_CONST, 0, tmpsv),
3815 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3822 sv_true(register SV *sv)
3829 if ((tXpv = (XPV*)SvANY(sv)) &&
3830 (*tXpv->xpv_pv > '0' ||
3831 tXpv->xpv_cur > 1 ||
3832 (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
3839 return SvIVX(sv) != 0;
3842 return SvNVX(sv) != 0.0;
3844 return sv_2bool(sv);
3850 sv_iv(register SV *sv)
3858 sv_uv(register SV *sv)
3866 sv_nv(register SV *sv)
3874 sv_pvn(SV *sv, STRLEN *lp)
3880 return sv_2pv(sv, lp);
3884 sv_pvn_force(SV *sv, STRLEN *lp)
3888 if (SvREADONLY(sv)) {
3890 if (curcop != &compiling)
3898 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3899 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3906 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3907 op_name[op->op_type]);
3912 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3917 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3918 SvGROW(sv, len + 1);
3919 Move(s,SvPVX(sv),len,char);
3924 SvPOK_on(sv); /* validate pointer */
3926 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3927 (unsigned long)sv,SvPVX(sv)));
3934 sv_reftype(SV *sv, int ob)
3936 if (ob && SvOBJECT(sv))
3937 return HvNAME(SvSTASH(sv));
3939 switch (SvTYPE(sv)) {
3953 case SVt_PVLV: return "LVALUE";
3954 case SVt_PVAV: return "ARRAY";
3955 case SVt_PVHV: return "HASH";
3956 case SVt_PVCV: return "CODE";
3957 case SVt_PVGV: return "GLOB";
3958 case SVt_PVFM: return "FORMLINE";
3959 default: return "UNKNOWN";
3980 sv_isa(SV *sv, char *name)
3992 return strEQ(HvNAME(SvSTASH(sv)), name);
3996 newSVrv(SV *rv, char *classname)
4006 SV_CHECK_THINKFIRST(rv);
4009 #endif /* OVERLOAD */
4011 if (SvTYPE(rv) < SVt_RV)
4012 sv_upgrade(rv, SVt_RV);
4015 SvRV(rv) = SvREFCNT_inc(sv);
4019 HV* stash = gv_stashpv(classname, TRUE);
4020 (void)sv_bless(rv, stash);
4026 sv_setref_pv(SV *rv, char *classname, void *pv)
4029 sv_setsv(rv, &sv_undef);
4033 sv_setiv(newSVrv(rv,classname), (IV)pv);
4038 sv_setref_iv(SV *rv, char *classname, IV iv)
4040 sv_setiv(newSVrv(rv,classname), iv);
4045 sv_setref_nv(SV *rv, char *classname, double nv)
4047 sv_setnv(newSVrv(rv,classname), nv);
4052 sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n)
4054 sv_setpvn(newSVrv(rv,classname), pv, n);
4059 sv_bless(SV *sv, HV *stash)
4064 croak("Can't bless non-reference value");
4066 if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
4067 if (SvREADONLY(tmpRef))
4069 if (SvOBJECT(tmpRef)) {
4070 if (SvTYPE(tmpRef) != SVt_PVIO)
4072 SvREFCNT_dec(SvSTASH(tmpRef));
4075 SvOBJECT_on(tmpRef);
4076 if (SvTYPE(tmpRef) != SVt_PVIO)
4078 (void)SvUPGRADE(tmpRef, SVt_PVMG);
4079 SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
4086 #endif /* OVERLOAD */
4094 assert(SvTYPE(sv) == SVt_PVGV);
4098 sv_unmagic(sv, '*');
4099 Safefree(GvNAME(sv));
4101 SvFLAGS(sv) &= ~SVTYPEMASK;
4102 SvFLAGS(sv) |= SVt_PVMG;
4112 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4115 sv_2mortal(rv); /* Schedule for freeing later */
4121 sv_magic((sv), Nullsv, 't', Nullch, 0);
4127 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4128 MAGIC *mg = mg_find(sv, 't');
4137 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4138 MAGIC *mg = mg_find(sv, 't');
4139 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4146 sv_setpviv(SV *sv, IV iv)
4149 char buf[TYPE_DIGITS(UV)];
4150 char *ptr = buf + sizeof(buf);
4155 sv_setpvn(sv, "", 0);
4164 *--ptr = '0' + (uv % 10);
4166 len = (buf + sizeof(buf)) - ptr;
4167 /* taking advantage of SvCUR(sv) == 0 */
4168 SvGROW(sv, sign + len + 1);
4172 memcpy(p, ptr, len);
4175 SvCUR(sv) = p - SvPVX(sv);
4180 sv_setpviv_mg(SV *sv, IV iv)
4188 sv_setpvf(SV *sv, const char* pat, ...)
4192 sv_setpvf(sv, pat, va_alist)
4200 va_start(args, pat);
4204 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4211 sv_setpvf_mg(SV *sv, const char* pat, ...)
4215 sv_setpvf_mg(sv, pat, va_alist)
4223 va_start(args, pat);
4227 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4234 sv_catpvf(SV *sv, const char* pat, ...)
4238 sv_catpvf(sv, pat, va_alist)
4246 va_start(args, pat);
4250 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4256 sv_catpvf_mg(SV *sv, const char* pat, ...)
4260 sv_catpvf_mg(sv, pat, va_alist)
4268 va_start(args, pat);
4272 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4278 sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4280 sv_setpvn(sv, "", 0);
4281 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4285 sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale)
4293 static char nullstr[] = "(null)";
4295 /* no matter what, this is a string now */
4296 (void)SvPV_force(sv, origlen);
4298 /* special-case "", "%s", and "%_" */
4301 if (patlen == 2 && pat[0] == '%') {
4305 char *s = va_arg(*args, char*);
4306 sv_catpv(sv, s ? s : nullstr);
4308 else if (svix < svmax)
4309 sv_catsv(sv, *svargs);
4313 sv_catsv(sv, va_arg(*args, SV*));
4316 /* See comment on '_' below */
4321 patend = (char*)pat + patlen;
4322 for (p = (char*)pat; p < patend; p = q) {
4330 bool has_precis = FALSE;
4334 STRLEN esignlen = 0;
4336 char *eptr = Nullch;
4338 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4340 static char *efloatbuf = Nullch;
4341 static STRLEN efloatsize = 0;
4353 for (q = p; q < patend && *q != '%'; ++q) ;
4355 sv_catpvn(sv, p, q - p);
4393 case '1': case '2': case '3':
4394 case '4': case '5': case '6':
4395 case '7': case '8': case '9':
4398 width = width * 10 + (*q++ - '0');
4403 i = va_arg(*args, int);
4405 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4407 width = (i < 0) ? -i : i;
4418 i = va_arg(*args, int);
4420 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4421 precis = (i < 0) ? 0 : i;
4427 precis = precis * 10 + (*q++ - '0');
4436 #if 0 /* when quads have better support within Perl */
4437 if (*(q + 1) == 'l') {
4463 c = va_arg(*args, int);
4465 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4472 eptr = va_arg(*args, char*);
4474 elen = strlen(eptr);
4477 elen = sizeof nullstr - 1;
4480 else if (svix < svmax)
4481 eptr = SvPVx(svargs[svix++], elen);
4486 * The "%_" hack might have to be changed someday,
4487 * if ISO or ANSI decide to use '_' for something.
4488 * So we keep it hidden from users' code.
4492 eptr = SvPVx(va_arg(*args, SV*), elen);
4495 if (has_precis && elen > precis)
4503 uv = (UV)va_arg(*args, void*);
4505 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4516 case 'h': iv = (short)va_arg(*args, int); break;
4517 default: iv = va_arg(*args, int); break;
4518 case 'l': iv = va_arg(*args, long); break;
4519 case 'V': iv = va_arg(*args, IV); break;
4523 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4525 case 'h': iv = (short)iv; break;
4526 default: iv = (int)iv; break;
4527 case 'l': iv = (long)iv; break;
4534 esignbuf[esignlen++] = plus;
4538 esignbuf[esignlen++] = '-';
4564 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4565 default: uv = va_arg(*args, unsigned); break;
4566 case 'l': uv = va_arg(*args, unsigned long); break;
4567 case 'V': uv = va_arg(*args, UV); break;
4571 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4573 case 'h': uv = (unsigned short)uv; break;
4574 default: uv = (unsigned)uv; break;
4575 case 'l': uv = (unsigned long)uv; break;
4581 eptr = ebuf + sizeof ebuf;
4587 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4593 esignbuf[esignlen++] = '0';
4594 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4600 *--eptr = '0' + dig;
4602 if (alt && *eptr != '0')
4605 default: /* it had better be ten or less */
4608 *--eptr = '0' + dig;
4609 } while (uv /= base);
4612 elen = (ebuf + sizeof ebuf) - eptr;
4615 zeros = precis - elen;
4616 else if (precis == 0 && elen == 1 && *eptr == '0')
4621 /* FLOATING POINT */
4624 c = 'f'; /* maybe %F isn't supported here */
4630 /* This is evil, but floating point is even more evil */
4633 nv = va_arg(*args, double);
4635 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4638 if (c != 'e' && c != 'E') {
4640 (void)frexp(nv, &i);
4641 if (i == PERL_INT_MIN)
4642 die("panic: frexp");
4644 need = BIT_DIGITS(i);
4646 need += has_precis ? precis : 6; /* known default */
4650 need += 20; /* fudge factor */
4651 if (efloatsize < need) {
4652 Safefree(efloatbuf);
4653 efloatsize = need + 20; /* more fudge */
4654 New(906, efloatbuf, efloatsize, char);
4657 eptr = ebuf + sizeof ebuf;
4662 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4667 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4679 (void)sprintf(efloatbuf, eptr, nv);
4682 elen = strlen(efloatbuf);
4686 * User-defined locales may include arbitrary characters.
4687 * And, unfortunately, some system may alloc the "C" locale
4688 * to be overridden by a malicious user.
4691 *used_locale = TRUE;
4692 #endif /* LC_NUMERIC */
4699 i = SvCUR(sv) - origlen;
4702 case 'h': *(va_arg(*args, short*)) = i; break;
4703 default: *(va_arg(*args, int*)) = i; break;
4704 case 'l': *(va_arg(*args, long*)) = i; break;
4705 case 'V': *(va_arg(*args, IV*)) = i; break;
4708 else if (svix < svmax)
4709 sv_setuv(svargs[svix++], (UV)i);
4710 continue; /* not "break" */
4716 if (!args && dowarn &&
4717 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4718 SV *msg = sv_newmortal();
4719 sv_setpvf(msg, "Invalid conversion in %s: ",
4720 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4722 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4725 sv_catpv(msg, "end of string");
4726 warn("%_", msg); /* yes, this is reentrant */
4729 /* output mangled stuff ... */
4735 /* ... right here, because formatting flags should not apply */
4736 SvGROW(sv, SvCUR(sv) + elen + 1);
4738 memcpy(p, eptr, elen);
4741 SvCUR(sv) = p - SvPVX(sv);
4742 continue; /* not "break" */
4745 have = esignlen + zeros + elen;
4746 need = (have > width ? have : width);
4749 SvGROW(sv, SvCUR(sv) + need + 1);
4751 if (esignlen && fill == '0') {
4752 for (i = 0; i < esignlen; i++)
4756 memset(p, fill, gap);
4759 if (esignlen && fill != '0') {
4760 for (i = 0; i < esignlen; i++)
4764 for (i = zeros; i; i--)
4768 memcpy(p, eptr, elen);
4772 memset(p, ' ', gap);
4776 SvCUR(sv) = p - SvPVX(sv);
4784 SV *d = sv_newmortal();
4790 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4794 flags = SvFLAGS(sv);
4797 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4798 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4799 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4800 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4801 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4802 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4803 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4804 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4805 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4806 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4808 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4809 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4810 if (flags & SVf_POK) sv_catpv(d, "POK,");
4811 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4812 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4813 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4814 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4817 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4818 #endif /* OVERLOAD */
4819 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4820 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4821 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4822 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4827 if (CvANON(sv)) sv_catpv(d, "ANON,");
4828 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4829 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4830 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4831 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4834 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4835 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4838 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4839 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4840 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4841 if (GvIMPORTED(sv)) {
4842 sv_catpv(d, "IMPORT");
4843 if (GvIMPORTED(sv) == GVf_IMPORTED)
4844 sv_catpv(d, "ALL,");
4847 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4848 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4849 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4850 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4855 if (SvTAIL(sv)) sv_catpv(d, "TAIL,");
4856 if (SvCOMPILED(sv)) sv_catpv(d, "COMPILED,");
4860 if (*(SvEND(d) - 1) == ',')
4861 SvPVX(d)[--SvCUR(d)] = '\0';
4865 PerlIO_printf(Perl_debug_log, "SV = ");
4868 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4871 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4874 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4877 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4880 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4883 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4886 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4889 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4892 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4895 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4898 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4901 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4904 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4907 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4910 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4913 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4916 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4919 if (type >= SVt_PVIV || type == SVt_IV)
4920 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4921 if (type >= SVt_PVNV || type == SVt_NV) {
4922 SET_NUMERIC_STANDARD();
4923 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4926 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4932 if (type <= SVt_PVLV) {
4934 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4935 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4937 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4939 if (type >= SVt_PVMG) {
4941 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4944 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4948 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4949 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4950 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4951 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4952 sv_dump(LvTARG(sv));
4955 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4956 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4957 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILLp(sv));
4958 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4959 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4960 flags = AvFLAGS(sv);
4962 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4963 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4964 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4965 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4966 SvCUR(d) ? SvPVX(d) + 1 : "");
4969 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4970 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4971 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4972 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4973 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4974 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4976 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4978 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4982 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4985 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4986 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4987 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4988 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4989 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4990 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4991 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4992 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4994 PerlIO_printf(Perl_debug_log, "\n");
4996 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4997 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4998 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4999 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
5001 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
5002 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
5003 #endif /* USE_THREADS */
5004 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
5005 (unsigned long)CvFLAGS(sv));
5006 if (type == SVt_PVFM)
5007 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
5010 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
5011 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
5012 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
5013 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
5014 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
5015 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
5016 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
5017 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
5018 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
5019 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
5020 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
5021 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
5022 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
5023 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
5024 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
5025 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
5028 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
5029 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
5030 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
5031 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
5032 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
5033 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
5034 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
5035 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
5036 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
5037 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
5038 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
5039 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
5040 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
5041 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
5042 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
5043 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));