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__)
43 static IV asIV _((SV* sv));
44 static UV asUV _((SV* sv));
45 static SV *more_sv _((void));
46 static XPVIV *more_xiv _((void));
47 static XPVNV *more_xnv _((void));
48 static XPV *more_xpv _((void));
49 static XRV *more_xrv _((void));
50 static XPVIV *new_xiv _((void));
51 static XPVNV *new_xnv _((void));
52 static XPV *new_xpv _((void));
53 static XRV *new_xrv _((void));
54 static void del_xiv _((XPVIV* p));
55 static void del_xnv _((XPVNV* p));
56 static void del_xpv _((XPV* p));
57 static void del_xrv _((XRV* p));
58 static void sv_mortalgrow _((void));
59 static void sv_unglob _((SV* sv));
61 typedef void (*SVFUNC) _((SV*));
67 (p) = (SV*)safemalloc(sizeof(SV)); \
80 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
82 #define REG_REPLACE(sv,a,b) \
84 void* p = sv->sv_any; \
85 I32 h = REGHASH(sv, regsize); \
87 while (registry[i] != (a)) { \
91 die("SV registry bug"); \
96 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
97 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
103 if (sv_count >= (regsize >> 1))
105 SV **oldreg = registry;
106 I32 oldsize = regsize;
108 regsize = regsize ? ((regsize << 2) + 1) : 2037;
109 registry = (SV**)safemalloc(regsize * sizeof(SV*));
110 memzero(registry, regsize * sizeof(SV*));
115 for (i = 0; i < oldsize; ++i) {
116 SV* oldsv = oldreg[i];
142 for (i = 0; i < regsize; ++i) {
143 SV* sv = registry[i];
150 sv_add_arena(ptr, size, flags)
155 if (!(flags & SVf_FAKE))
162 * "A time to plant, and a time to uproot what was planted..."
165 #define plant_SV(p) \
167 SvANY(p) = (void *)sv_root; \
168 SvFLAGS(p) = SVTYPEMASK; \
173 #define uproot_SV(p) \
175 MUTEX_LOCK(&sv_mutex); \
177 sv_root = (SV*)SvANY(p); \
179 MUTEX_UNLOCK(&sv_mutex); \
205 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
207 svend = &sva[SvREFCNT(sva)];
208 if (p >= sv && p < svend)
212 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
219 #else /* ! DEBUGGING */
221 #define del_SV(p) plant_SV(p)
223 #endif /* DEBUGGING */
226 sv_add_arena(ptr, size, flags)
234 Zero(sva, size, char);
236 /* The first SV in an arena isn't an SV. */
237 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
238 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
239 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
244 svend = &sva[SvREFCNT(sva) - 1];
247 SvANY(sv) = (void *)(SV*)(sv + 1);
248 SvFLAGS(sv) = SVTYPEMASK;
252 SvFLAGS(sv) = SVTYPEMASK;
261 sv_add_arena(nice_chunk, nice_chunk_size, 0);
265 char *chunk; /* must use New here to match call to */
266 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
267 sv_add_arena(chunk, 1008, 0);
281 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
282 svend = &sva[SvREFCNT(sva)];
283 for (sv = sva + 1; sv < svend; ++sv) {
284 if (SvTYPE(sv) != SVTYPEMASK)
296 if (SvTYPE(sv) != SVTYPEMASK) {
297 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
298 PerlIO_printf(PerlIO_stderr(), "****\n");
306 visit(do_report_used);
315 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
316 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
322 /* XXX Might want to check arrays, etc. */
325 #ifndef DISABLE_DESTRUCTOR_KLUDGE
327 do_clean_named_objs(sv)
330 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
331 do_clean_objs(GvSV(sv));
335 static bool in_clean_objs = FALSE;
340 in_clean_objs = TRUE;
341 #ifndef DISABLE_DESTRUCTOR_KLUDGE
342 visit(do_clean_named_objs);
344 visit(do_clean_objs);
345 in_clean_objs = FALSE;
352 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
353 SvFLAGS(sv) |= SVf_BREAK;
357 static bool in_clean_all = FALSE;
364 in_clean_all = FALSE;
373 /* Free arenas here, but be careful about fake ones. (We assume
374 contiguity of the fake ones with the corresponding real ones.) */
376 for (sva = sv_arenaroot; sva; sva = svanext) {
377 svanext = (SV*) SvANY(sva);
378 while (svanext && SvFAKE(svanext))
379 svanext = (SV*) SvANY(svanext);
382 Safefree((void *)sva);
396 * See comment in more_xiv() -- RAM.
398 xiv_root = (IV**)*xiv;
399 return (XPVIV*)((char*)xiv - sizeof(XPV));
408 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
409 *xiv = (IV *)xiv_root;
417 register IV** xivend;
418 XPV* ptr = (XPV*)safemalloc(1008);
419 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
420 xiv_arenaroot = ptr; /* to keep Purify happy */
423 xivend = &xiv[1008 / sizeof(IV *) - 1];
424 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
426 while (xiv < xivend) {
427 *xiv = (IV *)(xiv + 1);
440 xnv_root = *(double**)xnv;
441 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
450 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
451 *(double**)xnv = xnv_root;
458 register double* xnv;
459 register double* xnvend;
460 xnv = (double*)safemalloc(1008);
461 xnvend = &xnv[1008 / sizeof(double) - 1];
462 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
464 while (xnv < xnvend) {
465 *(double**)xnv = (double*)(xnv + 1);
478 xrv_root = (XRV*)xrv->xrv_rv;
488 p->xrv_rv = (SV*)xrv_root;
496 register XRV* xrvend;
497 xrv_root = (XRV*)safemalloc(1008);
499 xrvend = &xrv[1008 / sizeof(XRV) - 1];
500 while (xrv < xrvend) {
501 xrv->xrv_rv = (SV*)(xrv + 1);
514 xpv_root = (XPV*)xpv->xpv_pv;
524 p->xpv_pv = (char*)xpv_root;
532 register XPV* xpvend;
533 xpv_root = (XPV*)safemalloc(1008);
535 xpvend = &xpv[1008 / sizeof(XPV) - 1];
536 while (xpv < xpvend) {
537 xpv->xpv_pv = (char*)(xpv + 1);
545 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
546 #define del_XIV(p) free((char*)p)
548 #define new_XIV() (void*)new_xiv()
549 #define del_XIV(p) del_xiv(p)
553 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
554 #define del_XNV(p) free((char*)p)
556 #define new_XNV() (void*)new_xnv()
557 #define del_XNV(p) del_xnv(p)
561 #define new_XRV() (void*)safemalloc(sizeof(XRV))
562 #define del_XRV(p) free((char*)p)
564 #define new_XRV() (void*)new_xrv()
565 #define del_XRV(p) del_xrv(p)
569 #define new_XPV() (void*)safemalloc(sizeof(XPV))
570 #define del_XPV(p) free((char*)p)
572 #define new_XPV() (void*)new_xpv()
573 #define del_XPV(p) del_xpv(p)
576 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
577 #define del_XPVIV(p) free((char*)p)
579 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
580 #define del_XPVNV(p) free((char*)p)
582 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
583 #define del_XPVMG(p) free((char*)p)
585 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
586 #define del_XPVLV(p) free((char*)p)
588 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
589 #define del_XPVAV(p) free((char*)p)
591 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
592 #define del_XPVHV(p) free((char*)p)
594 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
595 #define del_XPVCV(p) free((char*)p)
597 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
598 #define del_XPVGV(p) free((char*)p)
600 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
601 #define del_XPVBM(p) free((char*)p)
603 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
604 #define del_XPVFM(p) free((char*)p)
606 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
607 #define del_XPVIO(p) free((char*)p)
622 if (SvTYPE(sv) == mt)
628 switch (SvTYPE(sv)) {
643 nv = (double)SvIVX(sv);
649 else if (mt < SVt_PVIV)
666 pv = (char*)SvRV(sv);
670 nv = (double)(unsigned long)pv;
686 else if (mt == SVt_NV)
697 del_XPVIV(SvANY(sv));
707 del_XPVNV(SvANY(sv));
717 del_XPVMG(SvANY(sv));
720 croak("Can't upgrade that kind of scalar");
725 croak("Can't upgrade to undef");
727 SvANY(sv) = new_XIV();
731 SvANY(sv) = new_XNV();
735 SvANY(sv) = new_XRV();
739 SvANY(sv) = new_XPV();
745 SvANY(sv) = new_XPVIV();
755 SvANY(sv) = new_XPVNV();
763 SvANY(sv) = new_XPVMG();
773 SvANY(sv) = new_XPVLV();
787 SvANY(sv) = new_XPVAV();
802 SvANY(sv) = new_XPVHV();
818 SvANY(sv) = new_XPVCV();
819 Zero(SvANY(sv), 1, XPVCV);
829 SvANY(sv) = new_XPVGV();
844 SvANY(sv) = new_XPVBM();
857 SvANY(sv) = new_XPVFM();
858 Zero(SvANY(sv), 1, XPVFM);
868 SvANY(sv) = new_XPVIO();
869 Zero(SvANY(sv), 1, XPVIO);
880 SvFLAGS(sv) &= ~SVTYPEMASK;
890 SV *t = sv_newmortal();
899 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
903 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
904 if (sv == &sv_undef) {
905 sv_catpv(t, "SV_UNDEF");
906 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
907 SVs_GMG|SVs_SMG|SVs_RMG)) &&
911 else if (sv == &sv_no) {
912 sv_catpv(t, "SV_NO");
913 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
914 SVs_GMG|SVs_SMG|SVs_RMG)) &&
915 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
922 sv_catpv(t, "SV_YES");
923 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
924 SVs_GMG|SVs_SMG|SVs_RMG)) &&
925 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
928 SvPVX(sv) && *SvPVX(sv) == '1' &&
934 else if (SvREFCNT(sv) == 0) {
940 if (SvCUR(t) + unref > 10) {
941 SvCUR(t) = unref + 3;
949 switch (SvTYPE(sv)) {
951 sv_catpv(t, "FREED");
955 sv_catpv(t, "UNDEF");
989 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1009 sv_catpv(t, "(null)");
1011 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1013 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1015 else if (SvNOKp(sv)) {
1016 SET_NUMERIC_STANDARD();
1017 sv_catpvf(t, "(%g)",SvNVX(sv));
1019 else if (SvIOKp(sv))
1020 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1039 char *s = SvPVX(sv);
1040 SvLEN(sv) += SvIVX(sv);
1041 SvPVX(sv) -= SvIVX(sv);
1043 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1045 SvFLAGS(sv) &= ~SVf_OOK;
1053 register I32 newlen;
1055 unsigned long newlen;
1060 #ifdef HAS_64K_LIMIT
1061 if (newlen >= 0x10000) {
1062 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1065 #endif /* HAS_64K_LIMIT */
1068 if (SvTYPE(sv) < SVt_PV) {
1069 sv_upgrade(sv, SVt_PV);
1072 else if (SvOOK(sv)) { /* pv is offset? */
1075 if (newlen > SvLEN(sv))
1076 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1080 if (newlen > SvLEN(sv)) { /* need more room? */
1082 Renew(s,newlen,char);
1084 New(703,s,newlen,char);
1086 SvLEN_set(sv, newlen);
1096 if (SvTHINKFIRST(sv)) {
1097 if (SvREADONLY(sv) && curcop != &compiling)
1102 switch (SvTYPE(sv)) {
1104 sv_upgrade(sv, SVt_IV);
1107 sv_upgrade(sv, SVt_PVNV);
1111 sv_upgrade(sv, SVt_PVIV);
1127 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1128 op_desc[op->op_type]);
1131 (void)SvIOK_only(sv); /* validate number */
1144 sv_setnv(sv, (double)u);
1152 if (SvTHINKFIRST(sv)) {
1153 if (SvREADONLY(sv) && curcop != &compiling)
1158 switch (SvTYPE(sv)) {
1161 sv_upgrade(sv, SVt_NV);
1167 sv_upgrade(sv, SVt_PVNV);
1174 (void)SvOOK_off(sv);
1189 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1190 op_name[op->op_type]);
1194 (void)SvNOK_only(sv); /* validate number */
1206 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1207 /* each *s can expand to 4 chars + "...\0",
1208 i.e. need room for 8 chars */
1210 for (s = SvPVX(sv); *s && d < limit; s++) {
1212 if (ch & 128 && !isPRINT_LC(ch)) {
1221 else if (ch == '\r') {
1225 else if (ch == '\f') {
1229 else if (ch == '\\') {
1233 else if (isPRINT_LC(ch))
1248 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1249 op_name[op->op_type]);
1251 warn("Argument \"%s\" isn't numeric", tmpbuf);
1260 if (SvGMAGICAL(sv)) {
1265 if (SvNVX(sv) < 0.0)
1266 return I_V(SvNVX(sv));
1268 return (IV) U_V(SvNVX(sv));
1270 if (SvPOKp(sv) && SvLEN(sv))
1273 dTHR; /* just for localizing */
1274 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1279 if (SvTHINKFIRST(sv)) {
1283 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1284 return SvIV(tmpstr);
1285 #endif /* OVERLOAD */
1286 return (IV)SvRV(sv);
1288 if (SvREADONLY(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))
1302 switch (SvTYPE(sv)) {
1304 sv_upgrade(sv, SVt_IV);
1307 sv_upgrade(sv, SVt_PVIV);
1310 sv_upgrade(sv, SVt_PVNV);
1315 if (SvNVX(sv) < 0.0)
1316 SvIVX(sv) = I_V(SvNVX(sv));
1318 SvUVX(sv) = U_V(SvNVX(sv));
1320 else if (SvPOKp(sv) && SvLEN(sv)) {
1322 SvIVX(sv) = asIV(sv);
1326 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1330 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1331 (unsigned long)sv,(long)SvIVX(sv)));
1341 if (SvGMAGICAL(sv)) {
1346 return U_V(SvNVX(sv));
1347 if (SvPOKp(sv) && SvLEN(sv))
1350 dTHR; /* just for localizing */
1351 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1356 if (SvTHINKFIRST(sv)) {
1360 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1361 return SvUV(tmpstr);
1362 #endif /* OVERLOAD */
1363 return (UV)SvRV(sv);
1365 if (SvREADONLY(sv)) {
1367 return U_V(SvNVX(sv));
1369 if (SvPOKp(sv) && SvLEN(sv))
1376 switch (SvTYPE(sv)) {
1378 sv_upgrade(sv, SVt_IV);
1381 sv_upgrade(sv, SVt_PVIV);
1384 sv_upgrade(sv, SVt_PVNV);
1389 SvUVX(sv) = U_V(SvNVX(sv));
1391 else if (SvPOKp(sv) && SvLEN(sv)) {
1393 SvUVX(sv) = asUV(sv);
1396 dTHR; /* just for localizing */
1397 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1401 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1402 (unsigned long)sv,SvUVX(sv)));
1412 if (SvGMAGICAL(sv)) {
1416 if (SvPOKp(sv) && SvLEN(sv)) {
1417 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1419 SET_NUMERIC_STANDARD();
1420 return atof(SvPVX(sv));
1423 return (double)SvIVX(sv);
1425 dTHR; /* just for localizing */
1426 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1431 if (SvTHINKFIRST(sv)) {
1435 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1436 return SvNV(tmpstr);
1437 #endif /* OVERLOAD */
1438 return (double)(unsigned long)SvRV(sv);
1440 if (SvREADONLY(sv)) {
1441 if (SvPOKp(sv) && SvLEN(sv)) {
1442 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1444 SET_NUMERIC_STANDARD();
1445 return atof(SvPVX(sv));
1448 return (double)SvIVX(sv);
1454 if (SvTYPE(sv) < SVt_NV) {
1455 if (SvTYPE(sv) == SVt_IV)
1456 sv_upgrade(sv, SVt_PVNV);
1458 sv_upgrade(sv, SVt_NV);
1459 DEBUG_c(SET_NUMERIC_STANDARD());
1460 DEBUG_c(PerlIO_printf(Perl_debug_log,
1461 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1463 else if (SvTYPE(sv) < SVt_PVNV)
1464 sv_upgrade(sv, SVt_PVNV);
1466 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1468 SvNVX(sv) = (double)SvIVX(sv);
1470 else if (SvPOKp(sv) && SvLEN(sv)) {
1471 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1473 SET_NUMERIC_STANDARD();
1474 SvNVX(sv) = atof(SvPVX(sv));
1478 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1483 DEBUG_c(SET_NUMERIC_STANDARD());
1484 DEBUG_c(PerlIO_printf(Perl_debug_log,
1485 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1493 I32 numtype = looks_like_number(sv);
1497 return atol(SvPVX(sv));
1498 if (!numtype && dowarn)
1500 SET_NUMERIC_STANDARD();
1501 d = atof(SvPVX(sv));
1512 I32 numtype = looks_like_number(sv);
1515 return atol(SvPVX(sv));
1516 if (!numtype && dowarn)
1518 SET_NUMERIC_STANDARD();
1519 return U_V(atof(SvPVX(sv)));
1523 looks_like_number(sv)
1527 register char *send;
1528 register char *sbegin;
1536 else if (SvPOKp(sv))
1537 sbegin = SvPV(sv, len);
1540 send = sbegin + len;
1545 if (*s == '+' || *s == '-')
1548 /* next must be digit or '.' */
1552 } while (isDIGIT(*s));
1555 while (isDIGIT(*s)) /* optional digits after "." */
1559 else if (*s == '.') {
1561 /* no digits before '.' means we need digits after it */
1565 } while (isDIGIT(*s));
1574 * we return 1 if the number can be converted to _integer_ with atol()
1575 * and 2 if you need (int)atof().
1579 /* we can have an optional exponent part */
1580 if (*s == 'e' || *s == 'E') {
1583 if (*s == '+' || *s == '-')
1588 } while (isDIGIT(*s));
1597 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1615 if (SvGMAGICAL(sv)) {
1622 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1627 SET_NUMERIC_STANDARD();
1628 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1633 dTHR; /* just for localizing */
1634 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1640 if (SvTHINKFIRST(sv)) {
1644 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1645 return SvPV(tmpstr,*lp);
1646 #endif /* OVERLOAD */
1651 switch (SvTYPE(sv)) {
1660 case SVt_PVMG: s = "SCALAR"; break;
1661 case SVt_PVLV: s = "LVALUE"; break;
1662 case SVt_PVAV: s = "ARRAY"; break;
1663 case SVt_PVHV: s = "HASH"; break;
1664 case SVt_PVCV: s = "CODE"; break;
1665 case SVt_PVGV: s = "GLOB"; break;
1666 case SVt_PVFM: s = "FORMATLINE"; break;
1667 case SVt_PVIO: s = "IO"; break;
1668 default: s = "UNKNOWN"; break;
1672 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1675 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1681 if (SvREADONLY(sv)) {
1683 SET_NUMERIC_STANDARD();
1684 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1689 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1699 if (!SvUPGRADE(sv, SVt_PV))
1702 if (SvTYPE(sv) < SVt_PVNV)
1703 sv_upgrade(sv, SVt_PVNV);
1706 olderrno = errno; /* some Xenix systems wipe out errno here */
1708 if (SvNVX(sv) == 0.0)
1709 (void)strcpy(s,"0");
1713 SET_NUMERIC_STANDARD();
1714 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1717 #ifdef FIXNEGATIVEZERO
1718 if (*s == '-' && s[1] == '0' && !s[2])
1727 else if (SvIOKp(sv)) {
1728 if (SvTYPE(sv) < SVt_PVIV)
1729 sv_upgrade(sv, SVt_PVIV);
1730 olderrno = errno; /* some Xenix systems wipe out errno here */
1731 sv_setpvf(sv, "%Vd", SvIVX(sv));
1737 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1742 *lp = s - SvPVX(sv);
1745 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1749 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1750 /* Sneaky stuff here */
1754 tsv = newSVpv(tokenbuf, 0);
1770 len = strlen(tokenbuf);
1772 #ifdef FIXNEGATIVEZERO
1773 if (len == 2 && t[0] == '-' && t[1] == '0') {
1778 (void)SvUPGRADE(sv, SVt_PV);
1780 s = SvGROW(sv, len + 1);
1788 /* This function is only called on magical items */
1803 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1804 return SvTRUE(tmpsv);
1806 #endif /* OVERLOAD */
1807 return SvRV(sv) != 0;
1810 register XPV* Xpvtmp;
1811 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1812 (*Xpvtmp->xpv_pv > '0' ||
1813 Xpvtmp->xpv_cur > 1 ||
1814 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1821 return SvIVX(sv) != 0;
1824 return SvNVX(sv) != 0.0;
1831 /* Note: sv_setsv() should not be called with a source string that needs
1832 * to be reused, since it may destroy the source string if it is marked
1842 register U32 sflags;
1848 if (SvTHINKFIRST(dstr)) {
1849 if (SvREADONLY(dstr) && curcop != &compiling)
1856 stype = SvTYPE(sstr);
1857 dtype = SvTYPE(dstr);
1859 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1860 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1861 sv_setpvn(dstr, "", 0);
1862 (void)SvPOK_only(dstr);
1863 dtype = SvTYPE(dstr);
1868 #endif /* OVERLOAD */
1869 /* There's a lot of redundancy below but we're going for speed here */
1873 (void)SvOK_off(dstr);
1876 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1878 sv_upgrade(dstr, SVt_IV);
1879 else if (dtype == SVt_NV)
1880 sv_upgrade(dstr, SVt_PVNV);
1882 sv_upgrade(dstr, SVt_PVIV);
1886 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1888 sv_upgrade(dstr, SVt_NV);
1890 sv_upgrade(dstr, SVt_PVNV);
1895 sv_upgrade(dstr, SVt_RV);
1896 else if (dtype == SVt_PVGV &&
1897 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1900 if (curcop->cop_stash != GvSTASH(dstr))
1901 GvIMPORTED_on(dstr);
1911 sv_upgrade(dstr, SVt_PV);
1914 if (dtype < SVt_PVIV)
1915 sv_upgrade(dstr, SVt_PVIV);
1918 if (dtype < SVt_PVNV)
1919 sv_upgrade(dstr, SVt_PVNV);
1923 sv_upgrade(dstr, SVt_PVLV);
1931 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1932 op_name[op->op_type]);
1934 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1938 if (dtype <= SVt_PVGV) {
1940 if (dtype != SVt_PVGV) {
1941 char *name = GvNAME(sstr);
1942 STRLEN len = GvNAMELEN(sstr);
1943 sv_upgrade(dstr, SVt_PVGV);
1944 sv_magic(dstr, dstr, '*', name, len);
1945 GvSTASH(dstr) = GvSTASH(sstr);
1946 GvNAME(dstr) = savepvn(name, len);
1947 GvNAMELEN(dstr) = len;
1948 SvFAKE_on(dstr); /* can coerce to non-glob */
1950 /* ahem, death to those who redefine active sort subs */
1951 else if (curstack == sortstack
1952 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1953 croak("Can't redefine active sort subroutine %s",
1955 (void)SvOK_off(dstr);
1956 GvINTRO_off(dstr); /* one-shot flag */
1958 GvGP(dstr) = gp_ref(GvGP(sstr));
1960 if (curcop->cop_stash != GvSTASH(dstr))
1961 GvIMPORTED_on(dstr);
1968 if (SvGMAGICAL(sstr)) {
1970 if (SvTYPE(sstr) != stype) {
1971 stype = SvTYPE(sstr);
1972 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1977 sv_upgrade(dstr, stype);
1980 sflags = SvFLAGS(sstr);
1982 if (sflags & SVf_ROK) {
1983 if (dtype >= SVt_PV) {
1984 if (dtype == SVt_PVGV) {
1986 SV *sref = SvREFCNT_inc(SvRV(sstr));
1988 int intro = GvINTRO(dstr);
1992 GvGP(dstr)->gp_refcnt--;
1993 GvINTRO_off(dstr); /* one-shot flag */
1994 Newz(602,gp, 1, GP);
1995 GvGP(dstr) = gp_ref(gp);
1996 GvSV(dstr) = NEWSV(72,0);
1997 GvLINE(dstr) = curcop->cop_line;
1998 GvEGV(dstr) = (GV*)dstr;
2001 switch (SvTYPE(sref)) {
2004 SAVESPTR(GvAV(dstr));
2006 dref = (SV*)GvAV(dstr);
2007 GvAV(dstr) = (AV*)sref;
2008 if (curcop->cop_stash != GvSTASH(dstr))
2009 GvIMPORTED_AV_on(dstr);
2013 SAVESPTR(GvHV(dstr));
2015 dref = (SV*)GvHV(dstr);
2016 GvHV(dstr) = (HV*)sref;
2017 if (curcop->cop_stash != GvSTASH(dstr))
2018 GvIMPORTED_HV_on(dstr);
2022 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2023 SvREFCNT_dec(GvCV(dstr));
2024 GvCV(dstr) = Nullcv;
2025 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2028 SAVESPTR(GvCV(dstr));
2031 dref = (SV*)GvCV(dstr);
2032 if (GvCV(dstr) != (CV*)sref) {
2033 CV* cv = GvCV(dstr);
2035 if (!GvCVGEN((GV*)dstr) &&
2036 (CvROOT(cv) || CvXSUB(cv)))
2038 /* ahem, death to those who redefine
2039 * active sort subs */
2040 if (curstack == sortstack &&
2041 sortcop == CvSTART(cv))
2043 "Can't redefine active sort subroutine %s",
2044 GvENAME((GV*)dstr));
2045 if (cv_const_sv(cv))
2046 warn("Constant subroutine %s redefined",
2047 GvENAME((GV*)dstr));
2049 warn("Subroutine %s redefined",
2050 GvENAME((GV*)dstr));
2052 cv_ckproto(cv, (GV*)dstr,
2053 SvPOK(sref) ? SvPVX(sref) : Nullch);
2055 GvCV(dstr) = (CV*)sref;
2056 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2057 GvASSUMECV_on(dstr);
2060 if (curcop->cop_stash != GvSTASH(dstr))
2061 GvIMPORTED_CV_on(dstr);
2065 SAVESPTR(GvIOp(dstr));
2067 dref = (SV*)GvIOp(dstr);
2068 GvIOp(dstr) = (IO*)sref;
2072 SAVESPTR(GvSV(dstr));
2074 dref = (SV*)GvSV(dstr);
2076 if (curcop->cop_stash != GvSTASH(dstr))
2077 GvIMPORTED_SV_on(dstr);
2088 (void)SvOOK_off(dstr); /* backoff */
2089 Safefree(SvPVX(dstr));
2090 SvLEN(dstr)=SvCUR(dstr)=0;
2093 (void)SvOK_off(dstr);
2094 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2096 if (sflags & SVp_NOK) {
2098 SvNVX(dstr) = SvNVX(sstr);
2100 if (sflags & SVp_IOK) {
2101 (void)SvIOK_on(dstr);
2102 SvIVX(dstr) = SvIVX(sstr);
2105 if (SvAMAGIC(sstr)) {
2108 #endif /* OVERLOAD */
2110 else if (sflags & SVp_POK) {
2113 * Check to see if we can just swipe the string. If so, it's a
2114 * possible small lose on short strings, but a big win on long ones.
2115 * It might even be a win on short strings if SvPVX(dstr)
2116 * has to be allocated and SvPVX(sstr) has to be freed.
2119 if (SvTEMP(sstr) && /* slated for free anyway? */
2120 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2122 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2124 SvFLAGS(dstr) &= ~SVf_OOK;
2125 Safefree(SvPVX(dstr) - SvIVX(dstr));
2128 Safefree(SvPVX(dstr));
2130 (void)SvPOK_only(dstr);
2131 SvPV_set(dstr, SvPVX(sstr));
2132 SvLEN_set(dstr, SvLEN(sstr));
2133 SvCUR_set(dstr, SvCUR(sstr));
2135 (void)SvOK_off(sstr);
2136 SvPV_set(sstr, Nullch);
2141 else { /* have to copy actual string */
2142 STRLEN len = SvCUR(sstr);
2144 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2145 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2146 SvCUR_set(dstr, len);
2147 *SvEND(dstr) = '\0';
2148 (void)SvPOK_only(dstr);
2151 if (sflags & SVp_NOK) {
2153 SvNVX(dstr) = SvNVX(sstr);
2155 if (sflags & SVp_IOK) {
2156 (void)SvIOK_on(dstr);
2157 SvIVX(dstr) = SvIVX(sstr);
2160 else if (sflags & SVp_NOK) {
2161 SvNVX(dstr) = SvNVX(sstr);
2162 (void)SvNOK_only(dstr);
2164 (void)SvIOK_on(dstr);
2165 SvIVX(dstr) = SvIVX(sstr);
2168 else if (sflags & SVp_IOK) {
2169 (void)SvIOK_only(dstr);
2170 SvIVX(dstr) = SvIVX(sstr);
2173 (void)SvOK_off(dstr);
2179 sv_setpvn(sv,ptr,len)
2181 register const char *ptr;
2182 register STRLEN len;
2184 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2185 elicit a warning, but it won't hurt. */
2186 if (SvTHINKFIRST(sv)) {
2187 if (SvREADONLY(sv) && curcop != &compiling)
2196 if (SvTYPE(sv) >= SVt_PV) {
2197 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2200 else if (!sv_upgrade(sv, SVt_PV))
2202 SvGROW(sv, len + 1);
2203 Move(ptr,SvPVX(sv),len,char);
2206 (void)SvPOK_only(sv); /* validate pointer */
2213 register const char *ptr;
2215 register STRLEN len;
2217 if (SvTHINKFIRST(sv)) {
2218 if (SvREADONLY(sv) && curcop != &compiling)
2228 if (SvTYPE(sv) >= SVt_PV) {
2229 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2232 else if (!sv_upgrade(sv, SVt_PV))
2234 SvGROW(sv, len + 1);
2235 Move(ptr,SvPVX(sv),len+1,char);
2237 (void)SvPOK_only(sv); /* validate pointer */
2242 sv_usepvn(sv,ptr,len)
2245 register STRLEN len;
2247 if (SvTHINKFIRST(sv)) {
2248 if (SvREADONLY(sv) && curcop != &compiling)
2253 if (!SvUPGRADE(sv, SVt_PV))
2260 Safefree(SvPVX(sv));
2261 Renew(ptr, len+1, char);
2264 SvLEN_set(sv, len+1);
2266 (void)SvPOK_only(sv); /* validate pointer */
2271 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2275 register STRLEN delta;
2277 if (!ptr || !SvPOKp(sv))
2279 if (SvTHINKFIRST(sv)) {
2280 if (SvREADONLY(sv) && curcop != &compiling)
2285 if (SvTYPE(sv) < SVt_PVIV)
2286 sv_upgrade(sv,SVt_PVIV);
2290 SvFLAGS(sv) |= SVf_OOK;
2292 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2293 delta = ptr - SvPVX(sv);
2301 sv_catpvn(sv,ptr,len)
2304 register STRLEN len;
2309 junk = SvPV_force(sv, tlen);
2310 SvGROW(sv, tlen + len + 1);
2313 Move(ptr,SvPVX(sv)+tlen,len,char);
2316 (void)SvPOK_only(sv); /* validate pointer */
2329 if (s = SvPV(sstr, len))
2330 sv_catpvn(dstr,s,len);
2338 register STRLEN len;
2344 junk = SvPV_force(sv, tlen);
2346 SvGROW(sv, tlen + len + 1);
2349 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2351 (void)SvPOK_only(sv); /* validate pointer */
2371 sv_upgrade(sv, SVt_PV);
2372 SvGROW(sv, len + 1);
2377 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2380 sv_magic(sv, obj, how, name, namlen)
2389 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2391 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2392 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2399 if (!SvUPGRADE(sv, SVt_PVMG))
2402 Newz(702,mg, 1, MAGIC);
2403 mg->mg_moremagic = SvMAGIC(sv);
2406 if (!obj || obj == sv || how == '#')
2410 mg->mg_obj = SvREFCNT_inc(obj);
2411 mg->mg_flags |= MGf_REFCOUNTED;
2414 mg->mg_len = namlen;
2417 mg->mg_ptr = savepvn(name, namlen);
2418 else if (namlen == HEf_SVKEY) {
2419 dTHR; /* just for SvREFCNT_inc */
2420 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2425 mg->mg_virtual = &vtbl_sv;
2429 mg->mg_virtual = &vtbl_amagic;
2432 mg->mg_virtual = &vtbl_amagicelem;
2437 #endif /* OVERLOAD */
2439 mg->mg_virtual = &vtbl_bm;
2442 mg->mg_virtual = &vtbl_env;
2445 mg->mg_virtual = &vtbl_fm;
2448 mg->mg_virtual = &vtbl_envelem;
2451 mg->mg_virtual = &vtbl_mglob;
2454 mg->mg_virtual = &vtbl_isa;
2457 mg->mg_virtual = &vtbl_isaelem;
2460 mg->mg_virtual = &vtbl_nkeys;
2467 mg->mg_virtual = &vtbl_dbline;
2471 mg->mg_virtual = &vtbl_mutex;
2473 #endif /* USE_THREADS */
2474 #ifdef USE_LOCALE_COLLATE
2476 mg->mg_virtual = &vtbl_collxfrm;
2478 #endif /* USE_LOCALE_COLLATE */
2480 mg->mg_virtual = &vtbl_pack;
2484 mg->mg_virtual = &vtbl_packelem;
2487 mg->mg_virtual = &vtbl_sig;
2490 mg->mg_virtual = &vtbl_sigelem;
2493 mg->mg_virtual = &vtbl_taint;
2497 mg->mg_virtual = &vtbl_uvar;
2500 mg->mg_virtual = &vtbl_vec;
2503 mg->mg_virtual = &vtbl_substr;
2506 mg->mg_virtual = &vtbl_defelem;
2509 mg->mg_virtual = &vtbl_glob;
2512 mg->mg_virtual = &vtbl_arylen;
2515 mg->mg_virtual = &vtbl_pos;
2517 case '~': /* Reserved for use by extensions not perl internals. */
2518 /* Useful for attaching extension internal data to perl vars. */
2519 /* Note that multiple extensions may clash if magical scalars */
2520 /* etc holding private data from one are passed to another. */
2524 croak("Don't know how to handle magic of type '%c'", how);
2528 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2532 sv_unmagic(sv, type)
2538 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2541 for (mg = *mgp; mg; mg = *mgp) {
2542 if (mg->mg_type == type) {
2543 MGVTBL* vtbl = mg->mg_virtual;
2544 *mgp = mg->mg_moremagic;
2545 if (vtbl && vtbl->svt_free)
2546 (*vtbl->svt_free)(sv, mg);
2547 if (mg->mg_ptr && mg->mg_type != 'g')
2548 if (mg->mg_len >= 0)
2549 Safefree(mg->mg_ptr);
2550 else if (mg->mg_len == HEf_SVKEY)
2551 SvREFCNT_dec((SV*)mg->mg_ptr);
2552 if (mg->mg_flags & MGf_REFCOUNTED)
2553 SvREFCNT_dec(mg->mg_obj);
2557 mgp = &mg->mg_moremagic;
2561 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2568 sv_insert(bigstr,offset,len,little,littlelen)
2577 register char *midend;
2578 register char *bigend;
2582 croak("Can't modify non-existent substring");
2583 SvPV_force(bigstr, na);
2585 i = littlelen - len;
2586 if (i > 0) { /* string might grow */
2587 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2588 mid = big + offset + len;
2589 midend = bigend = big + SvCUR(bigstr);
2592 while (midend > mid) /* shove everything down */
2593 *--bigend = *--midend;
2594 Move(little,big+offset,littlelen,char);
2600 Move(little,SvPVX(bigstr)+offset,len,char);
2605 big = SvPVX(bigstr);
2608 bigend = big + SvCUR(bigstr);
2610 if (midend > bigend)
2611 croak("panic: sv_insert");
2613 if (mid - big > bigend - midend) { /* faster to shorten from end */
2615 Move(little, mid, littlelen,char);
2618 i = bigend - midend;
2620 Move(midend, mid, i,char);
2624 SvCUR_set(bigstr, mid - big);
2627 else if (i = mid - big) { /* faster from front */
2628 midend -= littlelen;
2630 sv_chop(bigstr,midend-i);
2635 Move(little, mid, littlelen,char);
2637 else if (littlelen) {
2638 midend -= littlelen;
2639 sv_chop(bigstr,midend);
2640 Move(little,midend,littlelen,char);
2643 sv_chop(bigstr,midend);
2648 /* make sv point to what nstr did */
2655 U32 refcnt = SvREFCNT(sv);
2656 if (SvTHINKFIRST(sv)) {
2657 if (SvREADONLY(sv) && curcop != &compiling)
2662 if (SvREFCNT(nsv) != 1)
2663 warn("Reference miscount in sv_replace()");
2664 if (SvMAGICAL(sv)) {
2668 sv_upgrade(nsv, SVt_PVMG);
2669 SvMAGIC(nsv) = SvMAGIC(sv);
2670 SvFLAGS(nsv) |= SvMAGICAL(sv);
2676 assert(!SvREFCNT(sv));
2677 StructCopy(nsv,sv,SV);
2678 SvREFCNT(sv) = refcnt;
2679 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2688 assert(SvREFCNT(sv) == 0);
2692 if (defstash) { /* Still have a symbol table? */
2698 SAVEFREESV(SvSTASH(sv));
2700 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2705 sv_upgrade(&ref, SVt_RV);
2706 SvRV(&ref) = SvREFCNT_inc(sv);
2708 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2709 creating+destructing a ref
2710 leads to disaster. */
2716 perl_call_sv((SV*)GvCV(destructor),
2717 G_DISCARD|G_EVAL|G_KEEPERR);
2718 del_XRV(SvANY(&ref));
2725 SvREFCNT_dec(SvSTASH(sv));
2727 SvOBJECT_off(sv); /* Curse the object. */
2728 if (SvTYPE(sv) != SVt_PVIO)
2729 --sv_objcount; /* XXX Might want something more general */
2734 && (ret = perl_get_sv("DB::ret", FALSE))
2735 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2736 /* Debugger is prone to dangling references. */
2743 croak("DESTROY created new reference to dead object");
2744 /* DESTROY gave object new lease on life */
2749 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2751 switch (SvTYPE(sv)) {
2753 if (IoIFP(sv) != PerlIO_stdin() &&
2754 IoIFP(sv) != PerlIO_stdout() &&
2755 IoIFP(sv) != PerlIO_stderr())
2757 Safefree(IoTOP_NAME(sv));
2758 Safefree(IoFMT_NAME(sv));
2759 Safefree(IoBOTTOM_NAME(sv));
2775 Safefree(GvNAME(sv));
2782 (void)SvOOK_off(sv);
2787 SvREFCNT_dec(SvRV(sv));
2788 else if (SvPVX(sv) && SvLEN(sv))
2789 Safefree(SvPVX(sv));
2799 switch (SvTYPE(sv)) {
2815 del_XPVIV(SvANY(sv));
2818 del_XPVNV(SvANY(sv));
2821 del_XPVMG(SvANY(sv));
2824 del_XPVLV(SvANY(sv));
2827 del_XPVAV(SvANY(sv));
2830 del_XPVHV(SvANY(sv));
2833 del_XPVCV(SvANY(sv));
2836 del_XPVGV(SvANY(sv));
2839 del_XPVBM(SvANY(sv));
2842 del_XPVFM(SvANY(sv));
2845 del_XPVIO(SvANY(sv));
2848 SvFLAGS(sv) &= SVf_BREAK;
2849 SvFLAGS(sv) |= SVTYPEMASK;
2867 if (SvREADONLY(sv)) {
2868 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2871 if (SvREFCNT(sv) == 0) {
2872 if (SvFLAGS(sv) & SVf_BREAK)
2874 if (in_clean_all) /* All is fair */
2876 warn("Attempt to free unreferenced scalar");
2879 if (--SvREFCNT(sv) > 0)
2883 warn("Attempt to free temp prematurely");
2905 junk = SvPV(sv, len);
2924 pv1 = SvPV(str1, cur1);
2929 pv2 = SvPV(str2, cur2);
2934 return memEQ(pv1, pv2, cur1);
2943 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2945 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2949 return cur2 ? -1 : 0;
2954 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2957 return retval < 0 ? -1 : 1;
2962 return cur1 < cur2 ? -1 : 1;
2966 sv_cmp_locale(sv1, sv2)
2970 #ifdef USE_LOCALE_COLLATE
2976 if (collation_standard)
2980 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2982 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2984 if (!pv1 || !len1) {
2995 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2998 return retval < 0 ? -1 : 1;
3001 * When the result of collation is equality, that doesn't mean
3002 * that there are no differences -- some locales exclude some
3003 * characters from consideration. So to avoid false equalities,
3004 * we use the raw string as a tiebreaker.
3010 #endif /* USE_LOCALE_COLLATE */
3012 return sv_cmp(sv1, sv2);
3015 #ifdef USE_LOCALE_COLLATE
3017 * Any scalar variable may carry an 'o' magic that contains the
3018 * scalar data of the variable transformed to such a format that
3019 * a normal memory comparison can be used to compare the data
3020 * according to the locale settings.
3023 sv_collxfrm(sv, nxp)
3029 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3030 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3035 Safefree(mg->mg_ptr);
3037 if ((xf = mem_collxfrm(s, len, &xlen))) {
3038 if (SvREADONLY(sv)) {
3044 sv_magic(sv, 0, 'o', 0, 0);
3045 mg = mg_find(sv, 'o');
3058 if (mg && mg->mg_ptr) {
3060 return mg->mg_ptr + sizeof(collation_ix);
3068 #endif /* USE_LOCALE_COLLATE */
3071 sv_gets(sv,fp,append)
3073 register PerlIO *fp;
3078 register STDCHAR rslast;
3079 register STDCHAR *bp;
3083 if (SvTHINKFIRST(sv)) {
3084 if (SvREADONLY(sv) && curcop != &compiling)
3089 if (!SvUPGRADE(sv, SVt_PV))
3097 else if (RsPARA(rs)) {
3102 rsptr = SvPV(rs, rslen);
3103 rslast = rslen ? rsptr[rslen - 1] : '\0';
3105 if (RsPARA(rs)) { /* have to do this both before and after */
3106 do { /* to make sure file boundaries work right */
3109 i = PerlIO_getc(fp);
3113 PerlIO_ungetc(fp,i);
3119 /* See if we know enough about I/O mechanism to cheat it ! */
3121 /* This used to be #ifdef test - it is made run-time test for ease
3122 of abstracting out stdio interface. One call should be cheap
3123 enough here - and may even be a macro allowing compile
3127 if (PerlIO_fast_gets(fp)) {
3130 * We're going to steal some values from the stdio struct
3131 * and put EVERYTHING in the innermost loop into registers.
3133 register STDCHAR *ptr;
3137 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3138 /* An ungetc()d char is handled separately from the regular
3139 * buffer, so we getc() it back out and stuff it in the buffer.
3141 i = PerlIO_getc(fp);
3142 if (i == EOF) return 0;
3143 *(--((*fp)->_ptr)) = (unsigned char) i;
3147 /* Here is some breathtakingly efficient cheating */
3149 cnt = PerlIO_get_cnt(fp); /* get count into register */
3150 (void)SvPOK_only(sv); /* validate pointer */
3151 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3152 if (cnt > 80 && SvLEN(sv) > append) {
3153 shortbuffered = cnt - SvLEN(sv) + append + 1;
3154 cnt -= shortbuffered;
3158 /* remember that cnt can be negative */
3159 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3164 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3165 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3166 DEBUG_P(PerlIO_printf(Perl_debug_log,
3167 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3168 DEBUG_P(PerlIO_printf(Perl_debug_log,
3169 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3170 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3171 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3176 while (cnt > 0) { /* this | eat */
3178 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3179 goto thats_all_folks; /* screams | sed :-) */
3183 Copy(ptr, bp, cnt, char); /* this | eat */
3184 bp += cnt; /* screams | dust */
3185 ptr += cnt; /* louder | sed :-) */
3190 if (shortbuffered) { /* oh well, must extend */
3191 cnt = shortbuffered;
3193 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3195 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3196 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3200 DEBUG_P(PerlIO_printf(Perl_debug_log,
3201 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3202 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3203 DEBUG_P(PerlIO_printf(Perl_debug_log,
3204 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3205 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3206 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3207 /* This used to call 'filbuf' in stdio form, but as that behaves like
3208 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3209 another abstraction. */
3210 i = PerlIO_getc(fp); /* get more characters */
3211 DEBUG_P(PerlIO_printf(Perl_debug_log,
3212 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3213 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3214 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3215 cnt = PerlIO_get_cnt(fp);
3216 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3217 DEBUG_P(PerlIO_printf(Perl_debug_log,
3218 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3220 if (i == EOF) /* all done for ever? */
3221 goto thats_really_all_folks;
3223 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3225 SvGROW(sv, bpx + cnt + 2);
3226 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3228 *bp++ = i; /* store character from PerlIO_getc */
3230 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3231 goto thats_all_folks;
3235 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3236 memNE((char*)bp - rslen, rsptr, rslen))
3237 goto screamer; /* go back to the fray */
3238 thats_really_all_folks:
3240 cnt += shortbuffered;
3241 DEBUG_P(PerlIO_printf(Perl_debug_log,
3242 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3243 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3244 DEBUG_P(PerlIO_printf(Perl_debug_log,
3245 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3246 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3247 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3249 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3250 DEBUG_P(PerlIO_printf(Perl_debug_log,
3251 "Screamer: done, len=%d, string=|%.*s|\n",
3252 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3256 /*The big, slow, and stupid way */
3261 register STDCHAR *bpe = buf + sizeof(buf);
3263 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3264 ; /* keep reading */
3268 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3269 /* Accomodate broken VAXC compiler, which applies U8 cast to
3270 * both args of ?: operator, causing EOF to change into 255
3272 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3276 sv_catpvn(sv, (char *) buf, cnt);
3278 sv_setpvn(sv, (char *) buf, cnt);
3280 if (i != EOF && /* joy */
3282 SvCUR(sv) < rslen ||
3283 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3287 * If we're reading from a TTY and we get a short read,
3288 * indicating that the user hit his EOF character, we need
3289 * to notice it now, because if we try to read from the TTY
3290 * again, the EOF condition will disappear.
3292 * The comparison of cnt to sizeof(buf) is an optimization
3293 * that prevents unnecessary calls to feof().
3297 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3302 if (RsPARA(rs)) { /* have to do this both before and after */
3303 while (i != EOF) { /* to make sure file boundaries work right */
3304 i = PerlIO_getc(fp);
3306 PerlIO_ungetc(fp,i);
3312 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3325 if (SvTHINKFIRST(sv)) {
3326 if (SvREADONLY(sv) && curcop != &compiling)
3330 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3331 #endif /* OVERLOAD */
3337 flags = SvFLAGS(sv);
3338 if (flags & SVp_NOK) {
3339 (void)SvNOK_only(sv);
3343 if (flags & SVp_IOK) {
3344 if (SvIVX(sv) == IV_MAX)
3345 sv_setnv(sv, (double)IV_MAX + 1.0);
3347 (void)SvIOK_only(sv);
3352 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3353 if ((flags & SVTYPEMASK) < SVt_PVNV)
3354 sv_upgrade(sv, SVt_NV);
3356 (void)SvNOK_only(sv);
3360 while (isALPHA(*d)) d++;
3361 while (isDIGIT(*d)) d++;
3363 SET_NUMERIC_STANDARD();
3364 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3368 while (d >= SvPVX(sv)) {
3378 *(d--) -= 'z' - 'a' + 1;
3381 /* oh,oh, the number grew */
3382 SvGROW(sv, SvCUR(sv) + 2);
3384 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3400 if (SvTHINKFIRST(sv)) {
3401 if (SvREADONLY(sv) && curcop != &compiling)
3405 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3406 #endif /* OVERLOAD */
3412 flags = SvFLAGS(sv);
3413 if (flags & SVp_NOK) {
3415 (void)SvNOK_only(sv);
3418 if (flags & SVp_IOK) {
3419 if (SvIVX(sv) == IV_MIN)
3420 sv_setnv(sv, (double)IV_MIN - 1.0);
3422 (void)SvIOK_only(sv);
3427 if (!(flags & SVp_POK)) {
3428 if ((flags & SVTYPEMASK) < SVt_PVNV)
3429 sv_upgrade(sv, SVt_NV);
3431 (void)SvNOK_only(sv);
3434 SET_NUMERIC_STANDARD();
3435 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3438 /* Make a string that will exist for the duration of the expression
3439 * evaluation. Actually, it may have to last longer than that, but
3440 * hopefully we won't free it until it has been assigned to a
3441 * permanent location. */
3447 tmps_max += (tmps_max < 512) ? 128 : 512;
3448 Renew(tmps_stack, tmps_max, SV*);
3452 sv_mortalcopy(oldstr)
3462 sv_setsv(sv,oldstr);
3463 if (++tmps_ix >= tmps_max)
3465 tmps_stack[tmps_ix] = sv;
3479 SvFLAGS(sv) = SVs_TEMP;
3480 if (++tmps_ix >= tmps_max)
3482 tmps_stack[tmps_ix] = sv;
3486 /* same thing without the copying */
3495 if (SvREADONLY(sv) && curcop != &compiling)
3497 if (++tmps_ix >= tmps_max)
3499 tmps_stack[tmps_ix] = sv;
3517 sv_setpvn(sv,s,len);
3523 newSVpvf(const char* pat, ...)
3527 newSVpvf(pat, va_alist)
3540 va_start(args, pat);
3544 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3589 sv_upgrade(sv, SVt_RV);
3591 SvRV(sv) = SvREFCNT_inc(ref);
3607 #endif /* CRIPPLED_CC */
3609 /* make an exact duplicate of old */
3619 if (SvTYPE(old) == SVTYPEMASK) {
3620 warn("semi-panic: attempt to dup freed string");
3650 if (!*s) { /* reset ?? searches */
3651 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3652 pm->op_pmflags &= ~PMf_USED;
3657 /* reset variables */
3659 if (!HvARRAY(stash))
3662 Zero(todo, 256, char);
3669 for ( ; i <= max; i++) {
3672 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3673 for (entry = HvARRAY(stash)[i];
3675 entry = HeNEXT(entry)) {
3676 if (!todo[(U8)*HeKEY(entry)])
3678 gv = (GV*)HeVAL(entry);
3681 if (SvTYPE(sv) >= SVt_PV) {
3683 if (SvPVX(sv) != Nullch)
3690 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3692 #ifndef VMS /* VMS has no environ array */
3694 environ[0] = Nullch;
3709 switch (SvTYPE(sv)) {
3717 croak("Bad filehandle: %s", GvNAME(gv));
3721 croak(no_usym, "filehandle");
3723 return sv_2io(SvRV(sv));
3724 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3730 croak("Bad filehandle: %s", SvPV(sv,na));
3737 sv_2cv(sv, st, gvp, lref)
3747 return *gvp = Nullgv, Nullcv;
3748 switch (SvTYPE(sv)) {
3768 if (SvTYPE(cv) != SVt_PVCV)
3769 croak("Not a subroutine reference");
3777 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3783 if (lref && !GvCVu(gv)) {
3786 tmpsv = NEWSV(704,0);
3787 gv_efullname3(tmpsv, gv, Nullch);
3788 newSUB(start_subparse(FALSE, 0),
3789 newSVOP(OP_CONST, 0, tmpsv),
3794 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3811 if ((Xpv = (XPV*)SvANY(sv)) &&
3812 (*Xpv->xpv_pv > '0' ||
3814 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3821 return SvIVX(sv) != 0;
3824 return SvNVX(sv) != 0.0;
3826 return sv_2bool(sv);
3830 #endif /* !SvTRUE */
3875 return sv_2pv(sv, lp);
3880 sv_pvn_force(sv, lp)
3886 if (SvREADONLY(sv) && curcop != &compiling)
3893 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3894 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3901 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3902 op_name[op->op_type]);
3907 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3912 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3913 SvGROW(sv, len + 1);
3914 Move(s,SvPVX(sv),len,char);
3919 SvPOK_on(sv); /* validate pointer */
3921 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3922 (unsigned long)sv,SvPVX(sv)));
3933 if (ob && SvOBJECT(sv))
3934 return HvNAME(SvSTASH(sv));
3936 switch (SvTYPE(sv)) {
3950 case SVt_PVLV: return "LVALUE";
3951 case SVt_PVAV: return "ARRAY";
3952 case SVt_PVHV: return "HASH";
3953 case SVt_PVCV: return "CODE";
3954 case SVt_PVGV: return "GLOB";
3955 case SVt_PVFM: return "FORMLINE";
3956 default: return "UNKNOWN";
3992 return strEQ(HvNAME(SvSTASH(sv)), name);
3996 newSVrv(rv, classname)
4007 sv_upgrade(rv, SVt_RV);
4008 SvRV(rv) = SvREFCNT_inc(sv);
4012 HV* stash = gv_stashpv(classname, TRUE);
4013 (void)sv_bless(rv, stash);
4019 sv_setref_pv(rv, classname, pv)
4025 sv_setsv(rv, &sv_undef);
4027 sv_setiv(newSVrv(rv,classname), (IV)pv);
4032 sv_setref_iv(rv, classname, iv)
4037 sv_setiv(newSVrv(rv,classname), iv);
4042 sv_setref_nv(rv, classname, nv)
4047 sv_setnv(newSVrv(rv,classname), nv);
4052 sv_setref_pvn(rv, classname, pv, n)
4058 sv_setpvn(newSVrv(rv,classname), pv, n);
4070 croak("Can't bless non-reference value");
4072 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4073 if (SvREADONLY(ref))
4075 if (SvOBJECT(ref)) {
4076 if (SvTYPE(ref) != SVt_PVIO)
4078 SvREFCNT_dec(SvSTASH(ref));
4082 if (SvTYPE(ref) != SVt_PVIO)
4084 (void)SvUPGRADE(ref, SVt_PVMG);
4085 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4092 #endif /* OVERLOAD */
4101 assert(SvTYPE(sv) == SVt_PVGV);
4105 sv_unmagic(sv, '*');
4106 Safefree(GvNAME(sv));
4108 SvFLAGS(sv) &= ~SVTYPEMASK;
4109 SvFLAGS(sv) |= SVt_PVMG;
4120 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4123 sv_2mortal(rv); /* Schedule for freeing later */
4130 sv_magic((sv), Nullsv, 't', Nullch, 0);
4137 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4138 MAGIC *mg = mg_find(sv, 't');
4148 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4149 MAGIC *mg = mg_find(sv, 't');
4150 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4158 sv_setpvf(SV *sv, const char* pat, ...)
4162 sv_setpvf(sv, pat, va_alist)
4170 va_start(args, pat);
4174 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4180 sv_catpvf(SV *sv, const char* pat, ...)
4184 sv_catpvf(sv, pat, va_alist)
4192 va_start(args, pat);
4196 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4201 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4210 sv_setpvn(sv, "", 0);
4211 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4215 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4230 static char nullstr[] = "(null)";
4232 /* no matter what, this is a string now */
4233 (void)SvPV_force(sv, origlen);
4235 /* special-case "", "%s", and "%_" */
4238 if (patlen == 2 && pat[0] == '%') {
4242 char *s = va_arg(*args, char*);
4243 sv_catpv(sv, s ? s : nullstr);
4245 else if (svix < svmax)
4246 sv_catsv(sv, *svargs);
4250 sv_catsv(sv, va_arg(*args, SV*));
4253 /* See comment on '_' below */
4258 patend = (char*)pat + patlen;
4259 for (p = (char*)pat; p < patend; p = q) {
4267 bool has_precis = FALSE;
4271 STRLEN esignlen = 0;
4273 char *eptr = Nullch;
4275 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4277 static char *efloatbuf = Nullch;
4278 static STRLEN efloatsize = 0;
4290 for (q = p; q < patend && *q != '%'; ++q) ;
4292 sv_catpvn(sv, p, q - p);
4330 case '1': case '2': case '3':
4331 case '4': case '5': case '6':
4332 case '7': case '8': case '9':
4335 width = width * 10 + (*q++ - '0');
4340 i = va_arg(*args, int);
4342 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4344 width = (i < 0) ? -i : i;
4355 i = va_arg(*args, int);
4357 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4358 precis = (i < 0) ? 0 : i;
4364 precis = precis * 10 + (*q++ - '0');
4373 #if 0 /* when quads have better support within Perl */
4374 if (*(q + 1) == 'l') {
4400 c = va_arg(*args, int);
4402 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4409 eptr = va_arg(*args, char*);
4411 elen = strlen(eptr);
4414 elen = sizeof nullstr - 1;
4417 else if (svix < svmax)
4418 eptr = SvPVx(svargs[svix++], elen);
4423 * The "%_" hack might have to be changed someday,
4424 * if ISO or ANSI decide to use '_' for something.
4425 * So we keep it hidden from users' code.
4429 eptr = SvPVx(va_arg(*args, SV*), elen);
4432 if (has_precis && elen > precis)
4440 uv = (UV)va_arg(*args, void*);
4442 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4453 case 'h': iv = (short)va_arg(*args, int); break;
4454 default: iv = va_arg(*args, int); break;
4455 case 'l': iv = va_arg(*args, long); break;
4456 case 'V': iv = va_arg(*args, IV); break;
4460 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4462 case 'h': iv = (short)iv; break;
4463 default: iv = (int)iv; break;
4464 case 'l': iv = (long)iv; break;
4471 esignbuf[esignlen++] = plus;
4475 esignbuf[esignlen++] = '-';
4501 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4502 default: uv = va_arg(*args, unsigned); break;
4503 case 'l': uv = va_arg(*args, unsigned long); break;
4504 case 'V': uv = va_arg(*args, UV); break;
4508 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4510 case 'h': uv = (unsigned short)uv; break;
4511 default: uv = (unsigned)uv; break;
4512 case 'l': uv = (unsigned long)uv; break;
4518 eptr = ebuf + sizeof ebuf;
4522 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4528 esignbuf[esignlen++] = '0';
4529 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4535 *--eptr = '0' + dig;
4537 if (alt && *eptr != '0')
4540 default: /* it had better be ten or less */
4543 *--eptr = '0' + dig;
4544 } while (uv /= base);
4547 elen = (ebuf + sizeof ebuf) - eptr;
4548 if (has_precis && precis > elen)
4549 zeros = precis - elen;
4552 /* FLOATING POINT */
4555 c = 'f'; /* maybe %F isn't supported here */
4561 /* This is evil, but floating point is even more evil */
4564 nv = va_arg(*args, double);
4566 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4569 if (c != 'e' && c != 'E') {
4571 (void)frexp(nv, &i);
4572 if (i == PERL_INT_MIN)
4573 die("panic: frexp");
4575 need = BIT_DIGITS(i);
4577 need += has_precis ? precis : 6; /* known default */
4581 need += 20; /* fudge factor */
4582 if (efloatsize < need) {
4583 Safefree(efloatbuf);
4584 efloatsize = need + 20; /* more fudge */
4585 New(906, efloatbuf, efloatsize, char);
4588 eptr = ebuf + sizeof ebuf;
4593 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4598 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4608 (void)sprintf(efloatbuf, eptr, nv);
4611 elen = strlen(efloatbuf);
4615 * User-defined locales may include arbitrary characters.
4616 * And, unfortunately, some system may alloc the "C" locale
4617 * to be overridden by a malicious user.
4620 *used_locale = TRUE;
4621 #endif /* LC_NUMERIC */
4628 i = SvCUR(sv) - origlen;
4631 case 'h': *(va_arg(*args, short*)) = i; break;
4632 default: *(va_arg(*args, int*)) = i; break;
4633 case 'l': *(va_arg(*args, long*)) = i; break;
4634 case 'V': *(va_arg(*args, IV*)) = i; break;
4637 else if (svix < svmax)
4638 sv_setuv(svargs[svix++], (UV)i);
4639 continue; /* not "break" */
4645 if (!args && dowarn &&
4646 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4647 SV *msg = sv_newmortal();
4648 sv_setpvf(msg, "Invalid conversion in %s: ",
4649 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4651 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4654 sv_catpv(msg, "end of string");
4655 warn("%_", msg); /* yes, this is reentrant */
4657 /* output mangled stuff */
4663 have = esignlen + zeros + elen;
4664 need = (have > width ? have : width);
4667 SvGROW(sv, SvLEN(sv) + need);
4669 if (esignlen && fill == '0') {
4670 for (i = 0; i < esignlen; i++)
4674 memset(p, fill, gap);
4677 if (esignlen && fill != '0') {
4678 for (i = 0; i < esignlen; i++)
4682 for (i = zeros; i; i--)
4686 memcpy(p, eptr, elen);
4690 memset(p, ' ', gap);
4694 SvCUR(sv) = p - SvPVX(sv);
4703 SV *d = sv_newmortal();
4709 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4713 flags = SvFLAGS(sv);
4716 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4717 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4718 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4719 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4720 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4721 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4722 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4723 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4724 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4725 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4727 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4728 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4729 if (flags & SVf_POK) sv_catpv(d, "POK,");
4730 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4731 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4732 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4733 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4736 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4737 #endif /* OVERLOAD */
4738 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4739 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4740 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4741 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4746 if (CvANON(sv)) sv_catpv(d, "ANON,");
4747 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4748 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4749 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4750 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4753 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4754 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4757 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4758 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4759 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4760 if (GvIMPORTED(sv)) {
4761 sv_catpv(d, "IMPORT");
4762 if (GvIMPORTED(sv) == GVf_IMPORTED)
4763 sv_catpv(d, "ALL,");
4766 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4767 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4768 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4769 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4775 if (*(SvEND(d) - 1) == ',')
4776 SvPVX(d)[--SvCUR(d)] = '\0';
4780 PerlIO_printf(Perl_debug_log, "SV = ");
4783 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4786 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4789 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4792 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4795 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4798 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4801 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4804 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4807 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4810 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4813 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4816 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4819 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4822 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4825 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4828 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4831 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4834 if (type >= SVt_PVIV || type == SVt_IV)
4835 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4836 if (type >= SVt_PVNV || type == SVt_NV) {
4837 SET_NUMERIC_STANDARD();
4838 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4841 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4847 if (type <= SVt_PVLV) {
4849 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4850 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4852 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4854 if (type >= SVt_PVMG) {
4856 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4859 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4863 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4864 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4865 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4866 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4867 sv_dump(LvTARG(sv));
4870 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4871 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4872 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4873 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4874 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4875 flags = AvFLAGS(sv);
4877 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4878 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4879 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4880 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4881 SvCUR(d) ? SvPVX(d) + 1 : "");
4884 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4885 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4886 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4887 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4888 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4889 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4891 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4893 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4897 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4900 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4901 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4902 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4903 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4904 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4905 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4906 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4907 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4909 PerlIO_printf(Perl_debug_log, "\n");
4911 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4912 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4913 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4914 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4916 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4917 PerlIO_printf(Perl_debug_log, " CONDP = 0x%lx\n", (long)CvCONDP(sv));
4918 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4919 #endif /* USE_THREADS */
4920 if (type == SVt_PVFM)
4921 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4924 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4925 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4926 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4927 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4928 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4929 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4930 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4931 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4932 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4933 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4934 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4935 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4936 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4937 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4938 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4939 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4942 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4943 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4944 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4945 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4946 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4947 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4948 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4949 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4950 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4951 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4952 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4953 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4954 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4955 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4956 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4957 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));