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) \
176 sv_root = (SV*)SvANY(p); \
203 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
205 svend = &sva[SvREFCNT(sva)];
206 if (p >= sv && p < svend)
210 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
217 #else /* ! DEBUGGING */
219 #define del_SV(p) plant_SV(p)
221 #endif /* DEBUGGING */
224 sv_add_arena(ptr, size, flags)
232 Zero(sva, size, char);
234 /* The first SV in an arena isn't an SV. */
235 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
236 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
237 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
242 svend = &sva[SvREFCNT(sva) - 1];
245 SvANY(sv) = (void *)(SV*)(sv + 1);
246 SvFLAGS(sv) = SVTYPEMASK;
250 SvFLAGS(sv) = SVTYPEMASK;
259 sv_add_arena(nice_chunk, nice_chunk_size, 0);
263 char *chunk; /* must use New here to match call to */
264 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
265 sv_add_arena(chunk, 1008, 0);
279 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
280 svend = &sva[SvREFCNT(sva)];
281 for (sv = sva + 1; sv < svend; ++sv) {
282 if (SvTYPE(sv) != SVTYPEMASK)
294 if (SvTYPE(sv) != SVTYPEMASK) {
295 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
296 PerlIO_printf(PerlIO_stderr(), "****\n");
304 visit(do_report_used);
313 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
314 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
320 /* XXX Might want to check arrays, etc. */
323 #ifndef DISABLE_DESTRUCTOR_KLUDGE
325 do_clean_named_objs(sv)
328 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
329 do_clean_objs(GvSV(sv));
333 static bool in_clean_objs = FALSE;
338 in_clean_objs = TRUE;
339 #ifndef DISABLE_DESTRUCTOR_KLUDGE
340 visit(do_clean_named_objs);
342 visit(do_clean_objs);
343 in_clean_objs = FALSE;
350 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
351 SvFLAGS(sv) |= SVf_BREAK;
355 static bool in_clean_all = FALSE;
362 in_clean_all = FALSE;
371 /* Free arenas here, but be careful about fake ones. (We assume
372 contiguity of the fake ones with the corresponding real ones.) */
374 for (sva = sv_arenaroot; sva; sva = svanext) {
375 svanext = (SV*) SvANY(sva);
376 while (svanext && SvFAKE(svanext))
377 svanext = (SV*) SvANY(svanext);
380 Safefree((void *)sva);
394 * See comment in more_xiv() -- RAM.
396 xiv_root = (IV**)*xiv;
397 return (XPVIV*)((char*)xiv - sizeof(XPV));
406 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
407 *xiv = (IV *)xiv_root;
415 register IV** xivend;
416 XPV* ptr = (XPV*)safemalloc(1008);
417 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
418 xiv_arenaroot = ptr; /* to keep Purify happy */
421 xivend = &xiv[1008 / sizeof(IV *) - 1];
422 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
424 while (xiv < xivend) {
425 *xiv = (IV *)(xiv + 1);
438 xnv_root = *(double**)xnv;
439 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
448 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
449 *(double**)xnv = xnv_root;
456 register double* xnv;
457 register double* xnvend;
458 xnv = (double*)safemalloc(1008);
459 xnvend = &xnv[1008 / sizeof(double) - 1];
460 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
462 while (xnv < xnvend) {
463 *(double**)xnv = (double*)(xnv + 1);
476 xrv_root = (XRV*)xrv->xrv_rv;
486 p->xrv_rv = (SV*)xrv_root;
494 register XRV* xrvend;
495 xrv_root = (XRV*)safemalloc(1008);
497 xrvend = &xrv[1008 / sizeof(XRV) - 1];
498 while (xrv < xrvend) {
499 xrv->xrv_rv = (SV*)(xrv + 1);
512 xpv_root = (XPV*)xpv->xpv_pv;
522 p->xpv_pv = (char*)xpv_root;
530 register XPV* xpvend;
531 xpv_root = (XPV*)safemalloc(1008);
533 xpvend = &xpv[1008 / sizeof(XPV) - 1];
534 while (xpv < xpvend) {
535 xpv->xpv_pv = (char*)(xpv + 1);
543 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
544 #define del_XIV(p) free((char*)p)
546 #define new_XIV() (void*)new_xiv()
547 #define del_XIV(p) del_xiv(p)
551 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
552 #define del_XNV(p) free((char*)p)
554 #define new_XNV() (void*)new_xnv()
555 #define del_XNV(p) del_xnv(p)
559 #define new_XRV() (void*)safemalloc(sizeof(XRV))
560 #define del_XRV(p) free((char*)p)
562 #define new_XRV() (void*)new_xrv()
563 #define del_XRV(p) del_xrv(p)
567 #define new_XPV() (void*)safemalloc(sizeof(XPV))
568 #define del_XPV(p) free((char*)p)
570 #define new_XPV() (void*)new_xpv()
571 #define del_XPV(p) del_xpv(p)
574 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
575 #define del_XPVIV(p) free((char*)p)
577 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
578 #define del_XPVNV(p) free((char*)p)
580 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
581 #define del_XPVMG(p) free((char*)p)
583 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
584 #define del_XPVLV(p) free((char*)p)
586 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
587 #define del_XPVAV(p) free((char*)p)
589 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
590 #define del_XPVHV(p) free((char*)p)
592 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
593 #define del_XPVCV(p) free((char*)p)
595 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
596 #define del_XPVGV(p) free((char*)p)
598 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
599 #define del_XPVBM(p) free((char*)p)
601 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
602 #define del_XPVFM(p) free((char*)p)
604 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
605 #define del_XPVIO(p) free((char*)p)
620 if (SvTYPE(sv) == mt)
626 switch (SvTYPE(sv)) {
641 nv = (double)SvIVX(sv);
647 else if (mt < SVt_PVIV)
664 pv = (char*)SvRV(sv);
668 nv = (double)(unsigned long)pv;
684 else if (mt == SVt_NV)
695 del_XPVIV(SvANY(sv));
705 del_XPVNV(SvANY(sv));
715 del_XPVMG(SvANY(sv));
718 croak("Can't upgrade that kind of scalar");
723 croak("Can't upgrade to undef");
725 SvANY(sv) = new_XIV();
729 SvANY(sv) = new_XNV();
733 SvANY(sv) = new_XRV();
737 SvANY(sv) = new_XPV();
743 SvANY(sv) = new_XPVIV();
753 SvANY(sv) = new_XPVNV();
761 SvANY(sv) = new_XPVMG();
771 SvANY(sv) = new_XPVLV();
785 SvANY(sv) = new_XPVAV();
800 SvANY(sv) = new_XPVHV();
816 SvANY(sv) = new_XPVCV();
817 Zero(SvANY(sv), 1, XPVCV);
827 SvANY(sv) = new_XPVGV();
842 SvANY(sv) = new_XPVBM();
855 SvANY(sv) = new_XPVFM();
856 Zero(SvANY(sv), 1, XPVFM);
866 SvANY(sv) = new_XPVIO();
867 Zero(SvANY(sv), 1, XPVIO);
878 SvFLAGS(sv) &= ~SVTYPEMASK;
888 SV *t = sv_newmortal();
898 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
902 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
903 if (sv == &sv_undef) {
904 sv_catpv(t, "SV_UNDEF");
905 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
906 SVs_GMG|SVs_SMG|SVs_RMG)) &&
910 else if (sv == &sv_no) {
911 sv_catpv(t, "SV_NO");
912 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
913 SVs_GMG|SVs_SMG|SVs_RMG)) &&
914 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
921 sv_catpv(t, "SV_YES");
922 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
923 SVs_GMG|SVs_SMG|SVs_RMG)) &&
924 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
927 SvPVX(sv) && *SvPVX(sv) == '1' &&
933 else if (SvREFCNT(sv) == 0) {
939 if (SvCUR(t) + unref > 10) {
940 SvCUR(t) = unref + 3;
948 switch (SvTYPE(sv)) {
950 sv_catpv(t, "FREED");
954 sv_catpv(t, "UNDEF");
988 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1008 sv_catpv(t, "(null)");
1010 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1012 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1014 else if (SvNOKp(sv)) {
1015 SET_NUMERIC_STANDARD();
1016 sv_catpvf(t, "(%g)",SvNVX(sv));
1018 else if (SvIOKp(sv))
1019 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1038 char *s = SvPVX(sv);
1039 SvLEN(sv) += SvIVX(sv);
1040 SvPVX(sv) -= SvIVX(sv);
1042 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1044 SvFLAGS(sv) &= ~SVf_OOK;
1052 register I32 newlen;
1054 unsigned long newlen;
1059 #ifdef HAS_64K_LIMIT
1060 if (newlen >= 0x10000) {
1061 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1064 #endif /* HAS_64K_LIMIT */
1067 if (SvTYPE(sv) < SVt_PV) {
1068 sv_upgrade(sv, SVt_PV);
1071 else if (SvOOK(sv)) { /* pv is offset? */
1074 if (newlen > SvLEN(sv))
1075 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1079 if (newlen > SvLEN(sv)) { /* need more room? */
1081 Renew(s,newlen,char);
1083 New(703,s,newlen,char);
1085 SvLEN_set(sv, newlen);
1095 if (SvTHINKFIRST(sv)) {
1096 if (SvREADONLY(sv) && curcop != &compiling)
1101 switch (SvTYPE(sv)) {
1103 sv_upgrade(sv, SVt_IV);
1106 sv_upgrade(sv, SVt_PVNV);
1110 sv_upgrade(sv, SVt_PVIV);
1124 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1125 op_desc[op->op_type]);
1127 (void)SvIOK_only(sv); /* validate number */
1140 sv_setnv(sv, (double)u);
1148 if (SvTHINKFIRST(sv)) {
1149 if (SvREADONLY(sv) && curcop != &compiling)
1154 switch (SvTYPE(sv)) {
1157 sv_upgrade(sv, SVt_NV);
1163 sv_upgrade(sv, SVt_PVNV);
1170 (void)SvOOK_off(sv);
1183 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1184 op_name[op->op_type]);
1187 (void)SvNOK_only(sv); /* validate number */
1198 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1199 /* each *s can expand to 4 chars + "...\0",
1200 i.e. need room for 8 chars */
1202 for (s = SvPVX(sv); *s && d < limit; s++) {
1204 if (ch & 128 && !isPRINT_LC(ch)) {
1213 else if (ch == '\r') {
1217 else if (ch == '\f') {
1221 else if (ch == '\\') {
1225 else if (isPRINT_LC(ch))
1240 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1241 op_name[op->op_type]);
1243 warn("Argument \"%s\" isn't numeric", tmpbuf);
1252 if (SvGMAGICAL(sv)) {
1257 if (SvNVX(sv) < 0.0)
1258 return I_V(SvNVX(sv));
1260 return (IV) U_V(SvNVX(sv));
1262 if (SvPOKp(sv) && SvLEN(sv))
1265 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1270 if (SvTHINKFIRST(sv)) {
1274 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1275 return SvIV(tmpstr);
1276 #endif /* OVERLOAD */
1277 return (IV)SvRV(sv);
1279 if (SvREADONLY(sv)) {
1281 if (SvNVX(sv) < 0.0)
1282 return I_V(SvNVX(sv));
1284 return (IV) U_V(SvNVX(sv));
1286 if (SvPOKp(sv) && SvLEN(sv))
1293 switch (SvTYPE(sv)) {
1295 sv_upgrade(sv, SVt_IV);
1298 sv_upgrade(sv, SVt_PVIV);
1301 sv_upgrade(sv, SVt_PVNV);
1306 if (SvNVX(sv) < 0.0)
1307 SvIVX(sv) = I_V(SvNVX(sv));
1309 SvUVX(sv) = U_V(SvNVX(sv));
1311 else if (SvPOKp(sv) && SvLEN(sv)) {
1313 SvIVX(sv) = asIV(sv);
1316 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1320 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1321 (unsigned long)sv,(long)SvIVX(sv)));
1331 if (SvGMAGICAL(sv)) {
1336 return U_V(SvNVX(sv));
1337 if (SvPOKp(sv) && SvLEN(sv))
1340 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1345 if (SvTHINKFIRST(sv)) {
1349 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1350 return SvUV(tmpstr);
1351 #endif /* OVERLOAD */
1352 return (UV)SvRV(sv);
1354 if (SvREADONLY(sv)) {
1356 return U_V(SvNVX(sv));
1358 if (SvPOKp(sv) && SvLEN(sv))
1365 switch (SvTYPE(sv)) {
1367 sv_upgrade(sv, SVt_IV);
1370 sv_upgrade(sv, SVt_PVIV);
1373 sv_upgrade(sv, SVt_PVNV);
1378 SvUVX(sv) = U_V(SvNVX(sv));
1380 else if (SvPOKp(sv) && SvLEN(sv)) {
1382 SvUVX(sv) = asUV(sv);
1385 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1389 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1390 (unsigned long)sv,SvUVX(sv)));
1400 if (SvGMAGICAL(sv)) {
1404 if (SvPOKp(sv) && SvLEN(sv)) {
1405 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1407 SET_NUMERIC_STANDARD();
1408 return atof(SvPVX(sv));
1411 return (double)SvIVX(sv);
1413 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1418 if (SvTHINKFIRST(sv)) {
1422 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1423 return SvNV(tmpstr);
1424 #endif /* OVERLOAD */
1425 return (double)(unsigned long)SvRV(sv);
1427 if (SvREADONLY(sv)) {
1428 if (SvPOKp(sv) && SvLEN(sv)) {
1429 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1431 SET_NUMERIC_STANDARD();
1432 return atof(SvPVX(sv));
1435 return (double)SvIVX(sv);
1441 if (SvTYPE(sv) < SVt_NV) {
1442 if (SvTYPE(sv) == SVt_IV)
1443 sv_upgrade(sv, SVt_PVNV);
1445 sv_upgrade(sv, SVt_NV);
1446 DEBUG_c(SET_NUMERIC_STANDARD());
1447 DEBUG_c(PerlIO_printf(Perl_debug_log,
1448 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1450 else if (SvTYPE(sv) < SVt_PVNV)
1451 sv_upgrade(sv, SVt_PVNV);
1453 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1455 SvNVX(sv) = (double)SvIVX(sv);
1457 else if (SvPOKp(sv) && SvLEN(sv)) {
1458 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1460 SET_NUMERIC_STANDARD();
1461 SvNVX(sv) = atof(SvPVX(sv));
1464 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1469 DEBUG_c(SET_NUMERIC_STANDARD());
1470 DEBUG_c(PerlIO_printf(Perl_debug_log,
1471 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1479 I32 numtype = looks_like_number(sv);
1483 return atol(SvPVX(sv));
1484 if (!numtype && dowarn)
1486 SET_NUMERIC_STANDARD();
1487 d = atof(SvPVX(sv));
1498 I32 numtype = looks_like_number(sv);
1501 return atol(SvPVX(sv));
1502 if (!numtype && dowarn)
1504 SET_NUMERIC_STANDARD();
1505 return U_V(atof(SvPVX(sv)));
1509 looks_like_number(sv)
1513 register char *send;
1514 register char *sbegin;
1522 else if (SvPOKp(sv))
1523 sbegin = SvPV(sv, len);
1526 send = sbegin + len;
1531 if (*s == '+' || *s == '-')
1534 /* next must be digit or '.' */
1538 } while (isDIGIT(*s));
1541 while (isDIGIT(*s)) /* optional digits after "." */
1545 else if (*s == '.') {
1547 /* no digits before '.' means we need digits after it */
1551 } while (isDIGIT(*s));
1560 * we return 1 if the number can be converted to _integer_ with atol()
1561 * and 2 if you need (int)atof().
1565 /* we can have an optional exponent part */
1566 if (*s == 'e' || *s == 'E') {
1569 if (*s == '+' || *s == '-')
1574 } while (isDIGIT(*s));
1583 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1601 if (SvGMAGICAL(sv)) {
1608 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1613 SET_NUMERIC_STANDARD();
1614 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1619 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1625 if (SvTHINKFIRST(sv)) {
1629 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1630 return SvPV(tmpstr,*lp);
1631 #endif /* OVERLOAD */
1636 switch (SvTYPE(sv)) {
1645 case SVt_PVMG: s = "SCALAR"; break;
1646 case SVt_PVLV: s = "LVALUE"; break;
1647 case SVt_PVAV: s = "ARRAY"; break;
1648 case SVt_PVHV: s = "HASH"; break;
1649 case SVt_PVCV: s = "CODE"; break;
1650 case SVt_PVGV: s = "GLOB"; break;
1651 case SVt_PVFM: s = "FORMATLINE"; break;
1652 case SVt_PVIO: s = "IO"; break;
1653 default: s = "UNKNOWN"; break;
1657 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1660 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1666 if (SvREADONLY(sv)) {
1668 SET_NUMERIC_STANDARD();
1669 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1674 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1684 if (!SvUPGRADE(sv, SVt_PV))
1687 if (SvTYPE(sv) < SVt_PVNV)
1688 sv_upgrade(sv, SVt_PVNV);
1691 olderrno = errno; /* some Xenix systems wipe out errno here */
1693 if (SvNVX(sv) == 0.0)
1694 (void)strcpy(s,"0");
1698 SET_NUMERIC_STANDARD();
1699 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1702 #ifdef FIXNEGATIVEZERO
1703 if (*s == '-' && s[1] == '0' && !s[2])
1712 else if (SvIOKp(sv)) {
1713 if (SvTYPE(sv) < SVt_PVIV)
1714 sv_upgrade(sv, SVt_PVIV);
1715 olderrno = errno; /* some Xenix systems wipe out errno here */
1716 sv_setpvf(sv, "%Vd", SvIVX(sv));
1721 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1726 *lp = s - SvPVX(sv);
1729 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1733 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1734 /* Sneaky stuff here */
1738 tsv = newSVpv(tokenbuf, 0);
1754 len = strlen(tokenbuf);
1756 #ifdef FIXNEGATIVEZERO
1757 if (len == 2 && t[0] == '-' && t[1] == '0') {
1762 (void)SvUPGRADE(sv, SVt_PV);
1764 s = SvGROW(sv, len + 1);
1772 /* This function is only called on magical items */
1786 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1787 return SvTRUE(tmpsv);
1789 #endif /* OVERLOAD */
1790 return SvRV(sv) != 0;
1794 if ((Xpv = (XPV*)SvANY(sv)) &&
1795 (*Xpv->xpv_pv > '0' ||
1797 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1804 return SvIVX(sv) != 0;
1807 return SvNVX(sv) != 0.0;
1814 /* Note: sv_setsv() should not be called with a source string that needs
1815 * to be reused, since it may destroy the source string if it is marked
1824 register U32 sflags;
1830 if (SvTHINKFIRST(dstr)) {
1831 if (SvREADONLY(dstr) && curcop != &compiling)
1838 stype = SvTYPE(sstr);
1839 dtype = SvTYPE(dstr);
1841 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1842 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1843 sv_setpvn(dstr, "", 0);
1844 (void)SvPOK_only(dstr);
1845 dtype = SvTYPE(dstr);
1850 #endif /* OVERLOAD */
1851 /* There's a lot of redundancy below but we're going for speed here */
1855 (void)SvOK_off(dstr);
1858 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1860 sv_upgrade(dstr, SVt_IV);
1861 else if (dtype == SVt_NV)
1862 sv_upgrade(dstr, SVt_PVNV);
1864 sv_upgrade(dstr, SVt_PVIV);
1868 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1870 sv_upgrade(dstr, SVt_NV);
1872 sv_upgrade(dstr, SVt_PVNV);
1877 sv_upgrade(dstr, SVt_RV);
1878 else if (dtype == SVt_PVGV &&
1879 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1882 if (curcop->cop_stash != GvSTASH(dstr))
1883 GvIMPORTED_on(dstr);
1893 sv_upgrade(dstr, SVt_PV);
1896 if (dtype < SVt_PVIV)
1897 sv_upgrade(dstr, SVt_PVIV);
1900 if (dtype < SVt_PVNV)
1901 sv_upgrade(dstr, SVt_PVNV);
1905 sv_upgrade(dstr, SVt_PVLV);
1913 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1914 op_name[op->op_type]);
1916 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1920 if (dtype <= SVt_PVGV) {
1922 if (dtype != SVt_PVGV) {
1923 char *name = GvNAME(sstr);
1924 STRLEN len = GvNAMELEN(sstr);
1925 sv_upgrade(dstr, SVt_PVGV);
1926 sv_magic(dstr, dstr, '*', name, len);
1927 GvSTASH(dstr) = GvSTASH(sstr);
1928 GvNAME(dstr) = savepvn(name, len);
1929 GvNAMELEN(dstr) = len;
1930 SvFAKE_on(dstr); /* can coerce to non-glob */
1932 /* ahem, death to those who redefine active sort subs */
1933 else if (curstack == sortstack
1934 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1935 croak("Can't redefine active sort subroutine %s",
1937 (void)SvOK_off(dstr);
1938 GvINTRO_off(dstr); /* one-shot flag */
1940 GvGP(dstr) = gp_ref(GvGP(sstr));
1942 if (curcop->cop_stash != GvSTASH(dstr))
1943 GvIMPORTED_on(dstr);
1950 if (SvGMAGICAL(sstr)) {
1952 if (SvTYPE(sstr) != stype) {
1953 stype = SvTYPE(sstr);
1954 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1959 sv_upgrade(dstr, stype);
1962 sflags = SvFLAGS(sstr);
1964 if (sflags & SVf_ROK) {
1965 if (dtype >= SVt_PV) {
1966 if (dtype == SVt_PVGV) {
1967 SV *sref = SvREFCNT_inc(SvRV(sstr));
1969 int intro = GvINTRO(dstr);
1973 GvGP(dstr)->gp_refcnt--;
1974 GvINTRO_off(dstr); /* one-shot flag */
1975 Newz(602,gp, 1, GP);
1976 GvGP(dstr) = gp_ref(gp);
1977 GvSV(dstr) = NEWSV(72,0);
1978 GvLINE(dstr) = curcop->cop_line;
1979 GvEGV(dstr) = (GV*)dstr;
1982 switch (SvTYPE(sref)) {
1985 SAVESPTR(GvAV(dstr));
1987 dref = (SV*)GvAV(dstr);
1988 GvAV(dstr) = (AV*)sref;
1989 if (curcop->cop_stash != GvSTASH(dstr))
1990 GvIMPORTED_AV_on(dstr);
1994 SAVESPTR(GvHV(dstr));
1996 dref = (SV*)GvHV(dstr);
1997 GvHV(dstr) = (HV*)sref;
1998 if (curcop->cop_stash != GvSTASH(dstr))
1999 GvIMPORTED_HV_on(dstr);
2003 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2004 SvREFCNT_dec(GvCV(dstr));
2005 GvCV(dstr) = Nullcv;
2006 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2009 SAVESPTR(GvCV(dstr));
2012 dref = (SV*)GvCV(dstr);
2013 if (GvCV(dstr) != (CV*)sref) {
2014 CV* cv = GvCV(dstr);
2016 if (!GvCVGEN((GV*)dstr) &&
2017 (CvROOT(cv) || CvXSUB(cv)))
2019 /* ahem, death to those who redefine
2020 * active sort subs */
2021 if (curstack == sortstack &&
2022 sortcop == CvSTART(cv))
2024 "Can't redefine active sort subroutine %s",
2025 GvENAME((GV*)dstr));
2026 if (cv_const_sv(cv))
2027 warn("Constant subroutine %s redefined",
2028 GvENAME((GV*)dstr));
2030 warn("Subroutine %s redefined",
2031 GvENAME((GV*)dstr));
2033 cv_ckproto(cv, (GV*)dstr,
2034 SvPOK(sref) ? SvPVX(sref) : Nullch);
2036 GvCV(dstr) = (CV*)sref;
2037 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2038 GvASSUMECV_on(dstr);
2041 if (curcop->cop_stash != GvSTASH(dstr))
2042 GvIMPORTED_CV_on(dstr);
2046 SAVESPTR(GvIOp(dstr));
2048 dref = (SV*)GvIOp(dstr);
2049 GvIOp(dstr) = (IO*)sref;
2053 SAVESPTR(GvSV(dstr));
2055 dref = (SV*)GvSV(dstr);
2057 if (curcop->cop_stash != GvSTASH(dstr))
2058 GvIMPORTED_SV_on(dstr);
2069 (void)SvOOK_off(dstr); /* backoff */
2070 Safefree(SvPVX(dstr));
2071 SvLEN(dstr)=SvCUR(dstr)=0;
2074 (void)SvOK_off(dstr);
2075 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2077 if (sflags & SVp_NOK) {
2079 SvNVX(dstr) = SvNVX(sstr);
2081 if (sflags & SVp_IOK) {
2082 (void)SvIOK_on(dstr);
2083 SvIVX(dstr) = SvIVX(sstr);
2086 if (SvAMAGIC(sstr)) {
2089 #endif /* OVERLOAD */
2091 else if (sflags & SVp_POK) {
2094 * Check to see if we can just swipe the string. If so, it's a
2095 * possible small lose on short strings, but a big win on long ones.
2096 * It might even be a win on short strings if SvPVX(dstr)
2097 * has to be allocated and SvPVX(sstr) has to be freed.
2100 if (SvTEMP(sstr) && /* slated for free anyway? */
2101 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2103 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2105 SvFLAGS(dstr) &= ~SVf_OOK;
2106 Safefree(SvPVX(dstr) - SvIVX(dstr));
2109 Safefree(SvPVX(dstr));
2111 (void)SvPOK_only(dstr);
2112 SvPV_set(dstr, SvPVX(sstr));
2113 SvLEN_set(dstr, SvLEN(sstr));
2114 SvCUR_set(dstr, SvCUR(sstr));
2116 (void)SvOK_off(sstr);
2117 SvPV_set(sstr, Nullch);
2122 else { /* have to copy actual string */
2123 STRLEN len = SvCUR(sstr);
2125 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2126 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2127 SvCUR_set(dstr, len);
2128 *SvEND(dstr) = '\0';
2129 (void)SvPOK_only(dstr);
2132 if (sflags & SVp_NOK) {
2134 SvNVX(dstr) = SvNVX(sstr);
2136 if (sflags & SVp_IOK) {
2137 (void)SvIOK_on(dstr);
2138 SvIVX(dstr) = SvIVX(sstr);
2141 else if (sflags & SVp_NOK) {
2142 SvNVX(dstr) = SvNVX(sstr);
2143 (void)SvNOK_only(dstr);
2145 (void)SvIOK_on(dstr);
2146 SvIVX(dstr) = SvIVX(sstr);
2149 else if (sflags & SVp_IOK) {
2150 (void)SvIOK_only(dstr);
2151 SvIVX(dstr) = SvIVX(sstr);
2154 (void)SvOK_off(dstr);
2160 sv_setpvn(sv,ptr,len)
2162 register const char *ptr;
2163 register STRLEN len;
2165 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2166 elicit a warning, but it won't hurt. */
2167 if (SvTHINKFIRST(sv)) {
2168 if (SvREADONLY(sv) && curcop != &compiling)
2177 if (SvTYPE(sv) >= SVt_PV) {
2178 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2181 else if (!sv_upgrade(sv, SVt_PV))
2183 SvGROW(sv, len + 1);
2184 Move(ptr,SvPVX(sv),len,char);
2187 (void)SvPOK_only(sv); /* validate pointer */
2194 register const char *ptr;
2196 register STRLEN len;
2198 if (SvTHINKFIRST(sv)) {
2199 if (SvREADONLY(sv) && curcop != &compiling)
2209 if (SvTYPE(sv) >= SVt_PV) {
2210 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2213 else if (!sv_upgrade(sv, SVt_PV))
2215 SvGROW(sv, len + 1);
2216 Move(ptr,SvPVX(sv),len+1,char);
2218 (void)SvPOK_only(sv); /* validate pointer */
2223 sv_usepvn(sv,ptr,len)
2226 register STRLEN len;
2228 if (SvTHINKFIRST(sv)) {
2229 if (SvREADONLY(sv) && curcop != &compiling)
2234 if (!SvUPGRADE(sv, SVt_PV))
2241 Safefree(SvPVX(sv));
2242 Renew(ptr, len+1, char);
2245 SvLEN_set(sv, len+1);
2247 (void)SvPOK_only(sv); /* validate pointer */
2252 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2256 register STRLEN delta;
2258 if (!ptr || !SvPOKp(sv))
2260 if (SvTHINKFIRST(sv)) {
2261 if (SvREADONLY(sv) && curcop != &compiling)
2266 if (SvTYPE(sv) < SVt_PVIV)
2267 sv_upgrade(sv,SVt_PVIV);
2271 SvFLAGS(sv) |= SVf_OOK;
2273 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2274 delta = ptr - SvPVX(sv);
2282 sv_catpvn(sv,ptr,len)
2285 register STRLEN len;
2290 junk = SvPV_force(sv, tlen);
2291 SvGROW(sv, tlen + len + 1);
2294 Move(ptr,SvPVX(sv)+tlen,len,char);
2297 (void)SvPOK_only(sv); /* validate pointer */
2310 if (s = SvPV(sstr, len))
2311 sv_catpvn(dstr,s,len);
2319 register STRLEN len;
2325 junk = SvPV_force(sv, tlen);
2327 SvGROW(sv, tlen + len + 1);
2330 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2332 (void)SvPOK_only(sv); /* validate pointer */
2352 sv_upgrade(sv, SVt_PV);
2353 SvGROW(sv, len + 1);
2358 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2361 sv_magic(sv, obj, how, name, namlen)
2370 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2372 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2373 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2380 if (!SvUPGRADE(sv, SVt_PVMG))
2383 Newz(702,mg, 1, MAGIC);
2384 mg->mg_moremagic = SvMAGIC(sv);
2387 if (!obj || obj == sv || how == '#')
2390 mg->mg_obj = SvREFCNT_inc(obj);
2391 mg->mg_flags |= MGf_REFCOUNTED;
2394 mg->mg_len = namlen;
2397 mg->mg_ptr = savepvn(name, namlen);
2398 else if (namlen == HEf_SVKEY)
2399 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2403 mg->mg_virtual = &vtbl_sv;
2407 mg->mg_virtual = &vtbl_amagic;
2410 mg->mg_virtual = &vtbl_amagicelem;
2415 #endif /* OVERLOAD */
2417 mg->mg_virtual = &vtbl_bm;
2420 mg->mg_virtual = &vtbl_env;
2423 mg->mg_virtual = &vtbl_fm;
2426 mg->mg_virtual = &vtbl_envelem;
2429 mg->mg_virtual = &vtbl_mglob;
2432 mg->mg_virtual = &vtbl_isa;
2435 mg->mg_virtual = &vtbl_isaelem;
2438 mg->mg_virtual = &vtbl_nkeys;
2445 mg->mg_virtual = &vtbl_dbline;
2447 #ifdef USE_LOCALE_COLLATE
2449 mg->mg_virtual = &vtbl_collxfrm;
2451 #endif /* USE_LOCALE_COLLATE */
2453 mg->mg_virtual = &vtbl_pack;
2457 mg->mg_virtual = &vtbl_packelem;
2460 mg->mg_virtual = &vtbl_sig;
2463 mg->mg_virtual = &vtbl_sigelem;
2466 mg->mg_virtual = &vtbl_taint;
2470 mg->mg_virtual = &vtbl_uvar;
2473 mg->mg_virtual = &vtbl_vec;
2476 mg->mg_virtual = &vtbl_substr;
2479 mg->mg_virtual = &vtbl_defelem;
2482 mg->mg_virtual = &vtbl_glob;
2485 mg->mg_virtual = &vtbl_arylen;
2488 mg->mg_virtual = &vtbl_pos;
2490 case '~': /* Reserved for use by extensions not perl internals. */
2491 /* Useful for attaching extension internal data to perl vars. */
2492 /* Note that multiple extensions may clash if magical scalars */
2493 /* etc holding private data from one are passed to another. */
2497 croak("Don't know how to handle magic of type '%c'", how);
2501 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2505 sv_unmagic(sv, type)
2511 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2514 for (mg = *mgp; mg; mg = *mgp) {
2515 if (mg->mg_type == type) {
2516 MGVTBL* vtbl = mg->mg_virtual;
2517 *mgp = mg->mg_moremagic;
2518 if (vtbl && vtbl->svt_free)
2519 (*vtbl->svt_free)(sv, mg);
2520 if (mg->mg_ptr && mg->mg_type != 'g')
2521 if (mg->mg_len >= 0)
2522 Safefree(mg->mg_ptr);
2523 else if (mg->mg_len == HEf_SVKEY)
2524 SvREFCNT_dec((SV*)mg->mg_ptr);
2525 if (mg->mg_flags & MGf_REFCOUNTED)
2526 SvREFCNT_dec(mg->mg_obj);
2530 mgp = &mg->mg_moremagic;
2534 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2541 sv_insert(bigstr,offset,len,little,littlelen)
2550 register char *midend;
2551 register char *bigend;
2555 croak("Can't modify non-existent substring");
2556 SvPV_force(bigstr, na);
2558 i = littlelen - len;
2559 if (i > 0) { /* string might grow */
2560 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2561 mid = big + offset + len;
2562 midend = bigend = big + SvCUR(bigstr);
2565 while (midend > mid) /* shove everything down */
2566 *--bigend = *--midend;
2567 Move(little,big+offset,littlelen,char);
2573 Move(little,SvPVX(bigstr)+offset,len,char);
2578 big = SvPVX(bigstr);
2581 bigend = big + SvCUR(bigstr);
2583 if (midend > bigend)
2584 croak("panic: sv_insert");
2586 if (mid - big > bigend - midend) { /* faster to shorten from end */
2588 Move(little, mid, littlelen,char);
2591 i = bigend - midend;
2593 Move(midend, mid, i,char);
2597 SvCUR_set(bigstr, mid - big);
2600 else if (i = mid - big) { /* faster from front */
2601 midend -= littlelen;
2603 sv_chop(bigstr,midend-i);
2608 Move(little, mid, littlelen,char);
2610 else if (littlelen) {
2611 midend -= littlelen;
2612 sv_chop(bigstr,midend);
2613 Move(little,midend,littlelen,char);
2616 sv_chop(bigstr,midend);
2621 /* make sv point to what nstr did */
2628 U32 refcnt = SvREFCNT(sv);
2629 if (SvTHINKFIRST(sv)) {
2630 if (SvREADONLY(sv) && curcop != &compiling)
2635 if (SvREFCNT(nsv) != 1)
2636 warn("Reference miscount in sv_replace()");
2637 if (SvMAGICAL(sv)) {
2641 sv_upgrade(nsv, SVt_PVMG);
2642 SvMAGIC(nsv) = SvMAGIC(sv);
2643 SvFLAGS(nsv) |= SvMAGICAL(sv);
2649 assert(!SvREFCNT(sv));
2650 StructCopy(nsv,sv,SV);
2651 SvREFCNT(sv) = refcnt;
2652 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2661 assert(SvREFCNT(sv) == 0);
2664 if (defstash) { /* Still have a symbol table? */
2669 SAVEFREESV(SvSTASH(sv));
2671 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2676 sv_upgrade(&ref, SVt_RV);
2677 SvRV(&ref) = SvREFCNT_inc(sv);
2679 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2680 creating+destructing a ref
2681 leads to disaster. */
2687 perl_call_sv((SV*)GvCV(destructor),
2688 G_DISCARD|G_EVAL|G_KEEPERR);
2689 del_XRV(SvANY(&ref));
2696 SvREFCNT_dec(SvSTASH(sv));
2698 SvOBJECT_off(sv); /* Curse the object. */
2699 if (SvTYPE(sv) != SVt_PVIO)
2700 --sv_objcount; /* XXX Might want something more general */
2705 && (ret = perl_get_sv("DB::ret", FALSE))
2706 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2707 /* Debugger is prone to dangling references. */
2714 croak("DESTROY created new reference to dead object");
2715 /* DESTROY gave object new lease on life */
2720 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2722 switch (SvTYPE(sv)) {
2724 if (IoIFP(sv) != PerlIO_stdin() &&
2725 IoIFP(sv) != PerlIO_stdout() &&
2726 IoIFP(sv) != PerlIO_stderr())
2728 Safefree(IoTOP_NAME(sv));
2729 Safefree(IoFMT_NAME(sv));
2730 Safefree(IoBOTTOM_NAME(sv));
2746 Safefree(GvNAME(sv));
2753 (void)SvOOK_off(sv);
2758 SvREFCNT_dec(SvRV(sv));
2759 else if (SvPVX(sv) && SvLEN(sv))
2760 Safefree(SvPVX(sv));
2770 switch (SvTYPE(sv)) {
2786 del_XPVIV(SvANY(sv));
2789 del_XPVNV(SvANY(sv));
2792 del_XPVMG(SvANY(sv));
2795 del_XPVLV(SvANY(sv));
2798 del_XPVAV(SvANY(sv));
2801 del_XPVHV(SvANY(sv));
2804 del_XPVCV(SvANY(sv));
2807 del_XPVGV(SvANY(sv));
2810 del_XPVBM(SvANY(sv));
2813 del_XPVFM(SvANY(sv));
2816 del_XPVIO(SvANY(sv));
2819 SvFLAGS(sv) &= SVf_BREAK;
2820 SvFLAGS(sv) |= SVTYPEMASK;
2838 if (SvREADONLY(sv)) {
2839 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2842 if (SvREFCNT(sv) == 0) {
2843 if (SvFLAGS(sv) & SVf_BREAK)
2845 if (in_clean_all) /* All is fair */
2847 warn("Attempt to free unreferenced scalar");
2850 if (--SvREFCNT(sv) > 0)
2854 warn("Attempt to free temp prematurely");
2876 junk = SvPV(sv, len);
2895 pv1 = SvPV(str1, cur1);
2900 pv2 = SvPV(str2, cur2);
2905 return memEQ(pv1, pv2, cur1);
2914 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2916 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2920 return cur2 ? -1 : 0;
2925 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2928 return retval < 0 ? -1 : 1;
2933 return cur1 < cur2 ? -1 : 1;
2937 sv_cmp_locale(sv1, sv2)
2941 #ifdef USE_LOCALE_COLLATE
2947 if (collation_standard)
2951 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2953 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2955 if (!pv1 || !len1) {
2966 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2969 return retval < 0 ? -1 : 1;
2972 * When the result of collation is equality, that doesn't mean
2973 * that there are no differences -- some locales exclude some
2974 * characters from consideration. So to avoid false equalities,
2975 * we use the raw string as a tiebreaker.
2981 #endif /* USE_LOCALE_COLLATE */
2983 return sv_cmp(sv1, sv2);
2986 #ifdef USE_LOCALE_COLLATE
2988 * Any scalar variable may carry an 'o' magic that contains the
2989 * scalar data of the variable transformed to such a format that
2990 * a normal memory comparison can be used to compare the data
2991 * according to the locale settings.
2994 sv_collxfrm(sv, nxp)
3000 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3001 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3006 Safefree(mg->mg_ptr);
3008 if ((xf = mem_collxfrm(s, len, &xlen))) {
3009 if (SvREADONLY(sv)) {
3015 sv_magic(sv, 0, 'o', 0, 0);
3016 mg = mg_find(sv, 'o');
3029 if (mg && mg->mg_ptr) {
3031 return mg->mg_ptr + sizeof(collation_ix);
3039 #endif /* USE_LOCALE_COLLATE */
3042 sv_gets(sv,fp,append)
3044 register PerlIO *fp;
3049 register STDCHAR rslast;
3050 register STDCHAR *bp;
3054 if (SvTHINKFIRST(sv)) {
3055 if (SvREADONLY(sv) && curcop != &compiling)
3060 if (!SvUPGRADE(sv, SVt_PV))
3068 else if (RsPARA(rs)) {
3073 rsptr = SvPV(rs, rslen);
3074 rslast = rslen ? rsptr[rslen - 1] : '\0';
3076 if (RsPARA(rs)) { /* have to do this both before and after */
3077 do { /* to make sure file boundaries work right */
3080 i = PerlIO_getc(fp);
3084 PerlIO_ungetc(fp,i);
3090 /* See if we know enough about I/O mechanism to cheat it ! */
3092 /* This used to be #ifdef test - it is made run-time test for ease
3093 of abstracting out stdio interface. One call should be cheap
3094 enough here - and may even be a macro allowing compile
3098 if (PerlIO_fast_gets(fp)) {
3101 * We're going to steal some values from the stdio struct
3102 * and put EVERYTHING in the innermost loop into registers.
3104 register STDCHAR *ptr;
3108 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3109 /* An ungetc()d char is handled separately from the regular
3110 * buffer, so we getc() it back out and stuff it in the buffer.
3112 i = PerlIO_getc(fp);
3113 if (i == EOF) return 0;
3114 *(--((*fp)->_ptr)) = (unsigned char) i;
3118 /* Here is some breathtakingly efficient cheating */
3120 cnt = PerlIO_get_cnt(fp); /* get count into register */
3121 (void)SvPOK_only(sv); /* validate pointer */
3122 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3123 if (cnt > 80 && SvLEN(sv) > append) {
3124 shortbuffered = cnt - SvLEN(sv) + append + 1;
3125 cnt -= shortbuffered;
3129 /* remember that cnt can be negative */
3130 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3135 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3136 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3137 DEBUG_P(PerlIO_printf(Perl_debug_log,
3138 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3139 DEBUG_P(PerlIO_printf(Perl_debug_log,
3140 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3141 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3142 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3147 while (cnt > 0) { /* this | eat */
3149 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3150 goto thats_all_folks; /* screams | sed :-) */
3154 Copy(ptr, bp, cnt, char); /* this | eat */
3155 bp += cnt; /* screams | dust */
3156 ptr += cnt; /* louder | sed :-) */
3161 if (shortbuffered) { /* oh well, must extend */
3162 cnt = shortbuffered;
3164 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3166 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3167 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3171 DEBUG_P(PerlIO_printf(Perl_debug_log,
3172 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3173 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3174 DEBUG_P(PerlIO_printf(Perl_debug_log,
3175 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3176 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3177 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3178 /* This used to call 'filbuf' in stdio form, but as that behaves like
3179 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3180 another abstraction. */
3181 i = PerlIO_getc(fp); /* get more characters */
3182 DEBUG_P(PerlIO_printf(Perl_debug_log,
3183 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3184 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3185 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3186 cnt = PerlIO_get_cnt(fp);
3187 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3188 DEBUG_P(PerlIO_printf(Perl_debug_log,
3189 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3191 if (i == EOF) /* all done for ever? */
3192 goto thats_really_all_folks;
3194 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3196 SvGROW(sv, bpx + cnt + 2);
3197 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3199 *bp++ = i; /* store character from PerlIO_getc */
3201 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3202 goto thats_all_folks;
3206 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3207 memNE((char*)bp - rslen, rsptr, rslen))
3208 goto screamer; /* go back to the fray */
3209 thats_really_all_folks:
3211 cnt += shortbuffered;
3212 DEBUG_P(PerlIO_printf(Perl_debug_log,
3213 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3214 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3215 DEBUG_P(PerlIO_printf(Perl_debug_log,
3216 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3217 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3218 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3220 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3221 DEBUG_P(PerlIO_printf(Perl_debug_log,
3222 "Screamer: done, len=%d, string=|%.*s|\n",
3223 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3227 /*The big, slow, and stupid way */
3232 register STDCHAR *bpe = buf + sizeof(buf);
3234 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3235 ; /* keep reading */
3239 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3240 /* Accomodate broken VAXC compiler, which applies U8 cast to
3241 * both args of ?: operator, causing EOF to change into 255
3243 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3247 sv_catpvn(sv, (char *) buf, cnt);
3249 sv_setpvn(sv, (char *) buf, cnt);
3251 if (i != EOF && /* joy */
3253 SvCUR(sv) < rslen ||
3254 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3258 * If we're reading from a TTY and we get a short read,
3259 * indicating that the user hit his EOF character, we need
3260 * to notice it now, because if we try to read from the TTY
3261 * again, the EOF condition will disappear.
3263 * The comparison of cnt to sizeof(buf) is an optimization
3264 * that prevents unnecessary calls to feof().
3268 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3273 if (RsPARA(rs)) { /* have to do this both before and after */
3274 while (i != EOF) { /* to make sure file boundaries work right */
3275 i = PerlIO_getc(fp);
3277 PerlIO_ungetc(fp,i);
3283 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3296 if (SvTHINKFIRST(sv)) {
3297 if (SvREADONLY(sv) && curcop != &compiling)
3301 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3302 #endif /* OVERLOAD */
3308 flags = SvFLAGS(sv);
3309 if (flags & SVp_NOK) {
3310 (void)SvNOK_only(sv);
3314 if (flags & SVp_IOK) {
3315 if (SvIVX(sv) == IV_MAX)
3316 sv_setnv(sv, (double)IV_MAX + 1.0);
3318 (void)SvIOK_only(sv);
3323 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3324 if ((flags & SVTYPEMASK) < SVt_PVNV)
3325 sv_upgrade(sv, SVt_NV);
3327 (void)SvNOK_only(sv);
3331 while (isALPHA(*d)) d++;
3332 while (isDIGIT(*d)) d++;
3334 SET_NUMERIC_STANDARD();
3335 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3339 while (d >= SvPVX(sv)) {
3349 *(d--) -= 'z' - 'a' + 1;
3352 /* oh,oh, the number grew */
3353 SvGROW(sv, SvCUR(sv) + 2);
3355 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3371 if (SvTHINKFIRST(sv)) {
3372 if (SvREADONLY(sv) && curcop != &compiling)
3376 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3377 #endif /* OVERLOAD */
3383 flags = SvFLAGS(sv);
3384 if (flags & SVp_NOK) {
3386 (void)SvNOK_only(sv);
3389 if (flags & SVp_IOK) {
3390 if (SvIVX(sv) == IV_MIN)
3391 sv_setnv(sv, (double)IV_MIN - 1.0);
3393 (void)SvIOK_only(sv);
3398 if (!(flags & SVp_POK)) {
3399 if ((flags & SVTYPEMASK) < SVt_PVNV)
3400 sv_upgrade(sv, SVt_NV);
3402 (void)SvNOK_only(sv);
3405 SET_NUMERIC_STANDARD();
3406 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3409 /* Make a string that will exist for the duration of the expression
3410 * evaluation. Actually, it may have to last longer than that, but
3411 * hopefully we won't free it until it has been assigned to a
3412 * permanent location. */
3417 tmps_max += (tmps_max < 512) ? 128 : 512;
3418 Renew(tmps_stack, tmps_max, SV*);
3422 sv_mortalcopy(oldstr)
3431 sv_setsv(sv,oldstr);
3432 if (++tmps_ix >= tmps_max)
3434 tmps_stack[tmps_ix] = sv;
3447 SvFLAGS(sv) = SVs_TEMP;
3448 if (++tmps_ix >= tmps_max)
3450 tmps_stack[tmps_ix] = sv;
3454 /* same thing without the copying */
3462 if (SvREADONLY(sv) && curcop != &compiling)
3464 if (++tmps_ix >= tmps_max)
3466 tmps_stack[tmps_ix] = sv;
3484 sv_setpvn(sv,s,len);
3490 newSVpvf(const char* pat, ...)
3494 newSVpvf(pat, va_alist)
3507 va_start(args, pat);
3511 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3555 sv_upgrade(sv, SVt_RV);
3557 SvRV(sv) = SvREFCNT_inc(ref);
3573 #endif /* CRIPPLED_CC */
3575 /* make an exact duplicate of old */
3585 if (SvTYPE(old) == SVTYPEMASK) {
3586 warn("semi-panic: attempt to dup freed string");
3616 if (!*s) { /* reset ?? searches */
3617 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3618 pm->op_pmflags &= ~PMf_USED;
3623 /* reset variables */
3625 if (!HvARRAY(stash))
3628 Zero(todo, 256, char);
3635 for ( ; i <= max; i++) {
3638 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3639 for (entry = HvARRAY(stash)[i];
3641 entry = HeNEXT(entry)) {
3642 if (!todo[(U8)*HeKEY(entry)])
3644 gv = (GV*)HeVAL(entry);
3647 if (SvTYPE(sv) >= SVt_PV) {
3649 if (SvPVX(sv) != Nullch)
3656 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3658 #ifndef VMS /* VMS has no environ array */
3660 environ[0] = Nullch;
3675 switch (SvTYPE(sv)) {
3683 croak("Bad filehandle: %s", GvNAME(gv));
3687 croak(no_usym, "filehandle");
3689 return sv_2io(SvRV(sv));
3690 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3696 croak("Bad filehandle: %s", SvPV(sv,na));
3703 sv_2cv(sv, st, gvp, lref)
3713 return *gvp = Nullgv, Nullcv;
3714 switch (SvTYPE(sv)) {
3734 if (SvTYPE(cv) != SVt_PVCV)
3735 croak("Not a subroutine reference");
3743 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3749 if (lref && !GvCVu(gv)) {
3752 tmpsv = NEWSV(704,0);
3753 gv_efullname3(tmpsv, gv, Nullch);
3754 newSUB(start_subparse(FALSE, 0),
3755 newSVOP(OP_CONST, 0, tmpsv),
3760 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3777 if ((Xpv = (XPV*)SvANY(sv)) &&
3778 (*Xpv->xpv_pv > '0' ||
3780 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3787 return SvIVX(sv) != 0;
3790 return SvNVX(sv) != 0.0;
3792 return sv_2bool(sv);
3796 #endif /* !SvTRUE */
3841 return sv_2pv(sv, lp);
3846 sv_pvn_force(sv, lp)
3852 if (SvREADONLY(sv) && curcop != &compiling)
3859 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3860 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3866 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3867 op_name[op->op_type]);
3871 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3876 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3877 SvGROW(sv, len + 1);
3878 Move(s,SvPVX(sv),len,char);
3883 SvPOK_on(sv); /* validate pointer */
3885 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3886 (unsigned long)sv,SvPVX(sv)));
3897 if (ob && SvOBJECT(sv))
3898 return HvNAME(SvSTASH(sv));
3900 switch (SvTYPE(sv)) {
3914 case SVt_PVLV: return "LVALUE";
3915 case SVt_PVAV: return "ARRAY";
3916 case SVt_PVHV: return "HASH";
3917 case SVt_PVCV: return "CODE";
3918 case SVt_PVGV: return "GLOB";
3919 case SVt_PVFM: return "FORMLINE";
3920 default: return "UNKNOWN";
3956 return strEQ(HvNAME(SvSTASH(sv)), name);
3960 newSVrv(rv, classname)
3970 sv_upgrade(rv, SVt_RV);
3971 SvRV(rv) = SvREFCNT_inc(sv);
3975 HV* stash = gv_stashpv(classname, TRUE);
3976 (void)sv_bless(rv, stash);
3982 sv_setref_pv(rv, classname, pv)
3988 sv_setsv(rv, &sv_undef);
3990 sv_setiv(newSVrv(rv,classname), (IV)pv);
3995 sv_setref_iv(rv, classname, iv)
4000 sv_setiv(newSVrv(rv,classname), iv);
4005 sv_setref_nv(rv, classname, nv)
4010 sv_setnv(newSVrv(rv,classname), nv);
4015 sv_setref_pvn(rv, classname, pv, n)
4021 sv_setpvn(newSVrv(rv,classname), pv, n);
4032 croak("Can't bless non-reference value");
4034 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4035 if (SvREADONLY(ref))
4037 if (SvOBJECT(ref)) {
4038 if (SvTYPE(ref) != SVt_PVIO)
4040 SvREFCNT_dec(SvSTASH(ref));
4044 if (SvTYPE(ref) != SVt_PVIO)
4046 (void)SvUPGRADE(ref, SVt_PVMG);
4047 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4054 #endif /* OVERLOAD */
4063 assert(SvTYPE(sv) == SVt_PVGV);
4067 sv_unmagic(sv, '*');
4068 Safefree(GvNAME(sv));
4070 SvFLAGS(sv) &= ~SVTYPEMASK;
4071 SvFLAGS(sv) |= SVt_PVMG;
4082 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4085 sv_2mortal(rv); /* Schedule for freeing later */
4092 sv_magic((sv), Nullsv, 't', Nullch, 0);
4099 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4100 MAGIC *mg = mg_find(sv, 't');
4110 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4111 MAGIC *mg = mg_find(sv, 't');
4112 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4120 sv_setpvf(SV *sv, const char* pat, ...)
4124 sv_setpvf(sv, pat, va_alist)
4132 va_start(args, pat);
4136 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4142 sv_catpvf(SV *sv, const char* pat, ...)
4146 sv_catpvf(sv, pat, va_alist)
4154 va_start(args, pat);
4158 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4163 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4172 sv_setpvn(sv, "", 0);
4173 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4177 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4191 static char nullstr[] = "(null)";
4193 /* no matter what, this is a string now */
4194 (void)SvPV_force(sv, origlen);
4196 /* special-case "", "%s", and "%_" */
4199 if (patlen == 2 && pat[0] == '%') {
4203 char *s = va_arg(*args, char*);
4204 sv_catpv(sv, s ? s : nullstr);
4206 else if (svix < svmax)
4207 sv_catsv(sv, *svargs);
4211 sv_catsv(sv, va_arg(*args, SV*));
4214 /* See comment on '_' below */
4219 patend = (char*)pat + patlen;
4220 for (p = (char*)pat; p < patend; p = q) {
4228 bool has_precis = FALSE;
4232 STRLEN esignlen = 0;
4234 char *eptr = Nullch;
4236 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4238 static char *efloatbuf = Nullch;
4239 static STRLEN efloatsize = 0;
4251 for (q = p; q < patend && *q != '%'; ++q) ;
4253 sv_catpvn(sv, p, q - p);
4291 case '1': case '2': case '3':
4292 case '4': case '5': case '6':
4293 case '7': case '8': case '9':
4296 width = width * 10 + (*q++ - '0');
4301 i = va_arg(*args, int);
4303 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4305 width = (i < 0) ? -i : i;
4316 i = va_arg(*args, int);
4318 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4319 precis = (i < 0) ? 0 : i;
4325 precis = precis * 10 + (*q++ - '0');
4334 #if 0 /* when quads have better support within Perl */
4335 if (*(q + 1) == 'l') {
4361 c = va_arg(*args, int);
4363 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4370 eptr = va_arg(*args, char*);
4372 elen = strlen(eptr);
4375 elen = sizeof nullstr - 1;
4378 else if (svix < svmax)
4379 eptr = SvPVx(svargs[svix++], elen);
4384 * The "%_" hack might have to be changed someday,
4385 * if ISO or ANSI decide to use '_' for something.
4386 * So we keep it hidden from users' code.
4390 eptr = SvPVx(va_arg(*args, SV*), elen);
4393 if (has_precis && elen > precis)
4401 uv = (UV)va_arg(*args, void*);
4403 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4414 case 'h': iv = (short)va_arg(*args, int); break;
4415 default: iv = va_arg(*args, int); break;
4416 case 'l': iv = va_arg(*args, long); break;
4417 case 'V': iv = va_arg(*args, IV); break;
4421 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4423 case 'h': iv = (short)iv; break;
4424 default: iv = (int)iv; break;
4425 case 'l': iv = (long)iv; break;
4432 esignbuf[esignlen++] = plus;
4436 esignbuf[esignlen++] = '-';
4462 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4463 default: uv = va_arg(*args, unsigned); break;
4464 case 'l': uv = va_arg(*args, unsigned long); break;
4465 case 'V': uv = va_arg(*args, UV); break;
4469 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4471 case 'h': uv = (unsigned short)uv; break;
4472 default: uv = (unsigned)uv; break;
4473 case 'l': uv = (unsigned long)uv; break;
4479 eptr = ebuf + sizeof ebuf;
4483 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4489 esignbuf[esignlen++] = '0';
4490 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4496 *--eptr = '0' + dig;
4498 if (alt && *eptr != '0')
4501 default: /* it had better be ten or less */
4504 *--eptr = '0' + dig;
4505 } while (uv /= base);
4508 elen = (ebuf + sizeof ebuf) - eptr;
4509 if (has_precis && precis > elen)
4510 zeros = precis - elen;
4513 /* FLOATING POINT */
4516 c = 'f'; /* maybe %F isn't supported here */
4522 /* This is evil, but floating point is even more evil */
4525 nv = va_arg(*args, double);
4527 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4530 if (c != 'e' && c != 'E') {
4532 (void)frexp(nv, &i);
4533 if (i == PERL_INT_MIN)
4534 die("panic: frexp");
4536 need = BIT_DIGITS(i);
4538 need += has_precis ? precis : 6; /* known default */
4542 need += 20; /* fudge factor */
4543 if (efloatsize < need) {
4544 Safefree(efloatbuf);
4545 efloatsize = need + 20; /* more fudge */
4546 New(906, efloatbuf, efloatsize, char);
4549 eptr = ebuf + sizeof ebuf;
4554 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4559 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4569 (void)sprintf(efloatbuf, eptr, nv);
4572 elen = strlen(efloatbuf);
4576 * User-defined locales may include arbitrary characters.
4577 * And, unfortunately, some system may alloc the "C" locale
4578 * to be overridden by a malicious user.
4581 *used_locale = TRUE;
4582 #endif /* LC_NUMERIC */
4589 i = SvCUR(sv) - origlen;
4592 case 'h': *(va_arg(*args, short*)) = i; break;
4593 default: *(va_arg(*args, int*)) = i; break;
4594 case 'l': *(va_arg(*args, long*)) = i; break;
4595 case 'V': *(va_arg(*args, IV*)) = i; break;
4598 else if (svix < svmax)
4599 sv_setuv(svargs[svix++], (UV)i);
4600 continue; /* not "break" */
4606 if (!args && dowarn &&
4607 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4608 SV *msg = sv_newmortal();
4609 sv_setpvf(msg, "Invalid conversion in %s: ",
4610 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4612 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4615 sv_catpv(msg, "end of string");
4616 warn("%_", msg); /* yes, this is reentrant */
4618 /* output mangled stuff */
4624 have = esignlen + zeros + elen;
4625 need = (have > width ? have : width);
4628 SvGROW(sv, SvCUR(sv) + need + 1);
4630 if (esignlen && fill == '0') {
4631 for (i = 0; i < esignlen; i++)
4635 memset(p, fill, gap);
4638 if (esignlen && fill != '0') {
4639 for (i = 0; i < esignlen; i++)
4643 for (i = zeros; i; i--)
4647 memcpy(p, eptr, elen);
4651 memset(p, ' ', gap);
4655 SvCUR(sv) = p - SvPVX(sv);
4664 SV *d = sv_newmortal();
4670 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4674 flags = SvFLAGS(sv);
4677 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4678 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4679 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4680 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4681 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4682 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4683 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4684 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4685 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4686 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4688 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4689 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4690 if (flags & SVf_POK) sv_catpv(d, "POK,");
4691 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4692 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4693 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4694 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4697 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4698 #endif /* OVERLOAD */
4699 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4700 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4701 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4702 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4707 if (CvANON(sv)) sv_catpv(d, "ANON,");
4708 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4709 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4710 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4711 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4714 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4715 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4718 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4719 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4720 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4721 if (GvIMPORTED(sv)) {
4722 sv_catpv(d, "IMPORT");
4723 if (GvIMPORTED(sv) == GVf_IMPORTED)
4724 sv_catpv(d, "ALL,");
4727 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4728 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4729 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4730 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4736 if (*(SvEND(d) - 1) == ',')
4737 SvPVX(d)[--SvCUR(d)] = '\0';
4741 PerlIO_printf(Perl_debug_log, "SV = ");
4744 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4747 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4750 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4753 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4756 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4759 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4762 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4765 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4768 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4771 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4774 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4777 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4780 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4783 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4786 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4789 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4792 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4795 if (type >= SVt_PVIV || type == SVt_IV)
4796 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4797 if (type >= SVt_PVNV || type == SVt_NV) {
4798 SET_NUMERIC_STANDARD();
4799 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4802 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4808 if (type <= SVt_PVLV) {
4810 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4811 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4813 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4815 if (type >= SVt_PVMG) {
4817 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4820 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4824 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4825 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4826 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4827 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4828 sv_dump(LvTARG(sv));
4831 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4832 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4833 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4834 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4835 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4836 flags = AvFLAGS(sv);
4838 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4839 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4840 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4841 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4842 SvCUR(d) ? SvPVX(d) + 1 : "");
4845 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4846 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4847 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4848 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4849 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4850 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4852 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4854 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4858 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4861 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4862 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4863 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4864 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4865 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4866 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4867 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4868 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4870 PerlIO_printf(Perl_debug_log, "\n");
4872 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4873 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4874 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4875 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4876 if (type == SVt_PVFM)
4877 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4880 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4881 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4882 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4883 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4884 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4885 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4886 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4887 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4888 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4889 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4890 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4891 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4892 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4893 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4894 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4895 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4898 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4899 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4900 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4901 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4902 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4903 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4904 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4905 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4906 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4907 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4908 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4909 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4910 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4911 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4912 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4913 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));