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 U32 oldIOK = SvIOK(sv);
1714 if (SvTYPE(sv) < SVt_PVIV)
1715 sv_upgrade(sv, SVt_PVIV);
1716 olderrno = errno; /* some Xenix systems wipe out errno here */
1717 sv_setpvf(sv, "%Vd", SvIVX(sv));
1726 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1731 *lp = s - SvPVX(sv);
1734 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1738 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1739 /* Sneaky stuff here */
1743 tsv = newSVpv(tokenbuf, 0);
1759 len = strlen(tokenbuf);
1761 #ifdef FIXNEGATIVEZERO
1762 if (len == 2 && t[0] == '-' && t[1] == '0') {
1767 (void)SvUPGRADE(sv, SVt_PV);
1769 s = SvGROW(sv, len + 1);
1777 /* This function is only called on magical items */
1791 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1792 return SvTRUE(tmpsv);
1794 #endif /* OVERLOAD */
1795 return SvRV(sv) != 0;
1799 if ((Xpv = (XPV*)SvANY(sv)) &&
1800 (*Xpv->xpv_pv > '0' ||
1802 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1809 return SvIVX(sv) != 0;
1812 return SvNVX(sv) != 0.0;
1819 /* Note: sv_setsv() should not be called with a source string that needs
1820 * to be reused, since it may destroy the source string if it is marked
1829 register U32 sflags;
1835 if (SvTHINKFIRST(dstr)) {
1836 if (SvREADONLY(dstr) && curcop != &compiling)
1843 stype = SvTYPE(sstr);
1844 dtype = SvTYPE(dstr);
1846 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1847 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1848 sv_setpvn(dstr, "", 0);
1849 (void)SvPOK_only(dstr);
1850 dtype = SvTYPE(dstr);
1855 #endif /* OVERLOAD */
1856 /* There's a lot of redundancy below but we're going for speed here */
1860 (void)SvOK_off(dstr);
1863 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1865 sv_upgrade(dstr, SVt_IV);
1866 else if (dtype == SVt_NV)
1867 sv_upgrade(dstr, SVt_PVNV);
1869 sv_upgrade(dstr, SVt_PVIV);
1873 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1875 sv_upgrade(dstr, SVt_NV);
1877 sv_upgrade(dstr, SVt_PVNV);
1882 sv_upgrade(dstr, SVt_RV);
1883 else if (dtype == SVt_PVGV &&
1884 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1887 if (curcop->cop_stash != GvSTASH(dstr))
1888 GvIMPORTED_on(dstr);
1898 sv_upgrade(dstr, SVt_PV);
1901 if (dtype < SVt_PVIV)
1902 sv_upgrade(dstr, SVt_PVIV);
1905 if (dtype < SVt_PVNV)
1906 sv_upgrade(dstr, SVt_PVNV);
1910 sv_upgrade(dstr, SVt_PVLV);
1918 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1919 op_name[op->op_type]);
1921 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1925 if (dtype <= SVt_PVGV) {
1927 if (dtype != SVt_PVGV) {
1928 char *name = GvNAME(sstr);
1929 STRLEN len = GvNAMELEN(sstr);
1930 sv_upgrade(dstr, SVt_PVGV);
1931 sv_magic(dstr, dstr, '*', name, len);
1932 GvSTASH(dstr) = GvSTASH(sstr);
1933 GvNAME(dstr) = savepvn(name, len);
1934 GvNAMELEN(dstr) = len;
1935 SvFAKE_on(dstr); /* can coerce to non-glob */
1937 /* ahem, death to those who redefine active sort subs */
1938 else if (curstack == sortstack
1939 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1940 croak("Can't redefine active sort subroutine %s",
1942 (void)SvOK_off(dstr);
1943 GvINTRO_off(dstr); /* one-shot flag */
1945 GvGP(dstr) = gp_ref(GvGP(sstr));
1947 if (curcop->cop_stash != GvSTASH(dstr))
1948 GvIMPORTED_on(dstr);
1955 if (SvGMAGICAL(sstr)) {
1957 if (SvTYPE(sstr) != stype) {
1958 stype = SvTYPE(sstr);
1959 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1964 sv_upgrade(dstr, stype);
1967 sflags = SvFLAGS(sstr);
1969 if (sflags & SVf_ROK) {
1970 if (dtype >= SVt_PV) {
1971 if (dtype == SVt_PVGV) {
1972 SV *sref = SvREFCNT_inc(SvRV(sstr));
1974 int intro = GvINTRO(dstr);
1978 GvGP(dstr)->gp_refcnt--;
1979 GvINTRO_off(dstr); /* one-shot flag */
1980 Newz(602,gp, 1, GP);
1981 GvGP(dstr) = gp_ref(gp);
1982 GvSV(dstr) = NEWSV(72,0);
1983 GvLINE(dstr) = curcop->cop_line;
1984 GvEGV(dstr) = (GV*)dstr;
1987 switch (SvTYPE(sref)) {
1990 SAVESPTR(GvAV(dstr));
1992 dref = (SV*)GvAV(dstr);
1993 GvAV(dstr) = (AV*)sref;
1994 if (curcop->cop_stash != GvSTASH(dstr))
1995 GvIMPORTED_AV_on(dstr);
1999 SAVESPTR(GvHV(dstr));
2001 dref = (SV*)GvHV(dstr);
2002 GvHV(dstr) = (HV*)sref;
2003 if (curcop->cop_stash != GvSTASH(dstr))
2004 GvIMPORTED_HV_on(dstr);
2008 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2009 SvREFCNT_dec(GvCV(dstr));
2010 GvCV(dstr) = Nullcv;
2011 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2014 SAVESPTR(GvCV(dstr));
2017 dref = (SV*)GvCV(dstr);
2018 if (GvCV(dstr) != (CV*)sref) {
2019 CV* cv = GvCV(dstr);
2021 if (!GvCVGEN((GV*)dstr) &&
2022 (CvROOT(cv) || CvXSUB(cv)))
2024 /* ahem, death to those who redefine
2025 * active sort subs */
2026 if (curstack == sortstack &&
2027 sortcop == CvSTART(cv))
2029 "Can't redefine active sort subroutine %s",
2030 GvENAME((GV*)dstr));
2031 if (cv_const_sv(cv))
2032 warn("Constant subroutine %s redefined",
2033 GvENAME((GV*)dstr));
2035 warn("Subroutine %s redefined",
2036 GvENAME((GV*)dstr));
2038 cv_ckproto(cv, (GV*)dstr,
2039 SvPOK(sref) ? SvPVX(sref) : Nullch);
2041 GvCV(dstr) = (CV*)sref;
2042 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2043 GvASSUMECV_on(dstr);
2046 if (curcop->cop_stash != GvSTASH(dstr))
2047 GvIMPORTED_CV_on(dstr);
2051 SAVESPTR(GvIOp(dstr));
2053 dref = (SV*)GvIOp(dstr);
2054 GvIOp(dstr) = (IO*)sref;
2058 SAVESPTR(GvSV(dstr));
2060 dref = (SV*)GvSV(dstr);
2062 if (curcop->cop_stash != GvSTASH(dstr))
2063 GvIMPORTED_SV_on(dstr);
2074 (void)SvOOK_off(dstr); /* backoff */
2075 Safefree(SvPVX(dstr));
2076 SvLEN(dstr)=SvCUR(dstr)=0;
2079 (void)SvOK_off(dstr);
2080 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2082 if (sflags & SVp_NOK) {
2084 SvNVX(dstr) = SvNVX(sstr);
2086 if (sflags & SVp_IOK) {
2087 (void)SvIOK_on(dstr);
2088 SvIVX(dstr) = SvIVX(sstr);
2091 if (SvAMAGIC(sstr)) {
2094 #endif /* OVERLOAD */
2096 else if (sflags & SVp_POK) {
2099 * Check to see if we can just swipe the string. If so, it's a
2100 * possible small lose on short strings, but a big win on long ones.
2101 * It might even be a win on short strings if SvPVX(dstr)
2102 * has to be allocated and SvPVX(sstr) has to be freed.
2105 if (SvTEMP(sstr) && /* slated for free anyway? */
2106 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2108 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2110 SvFLAGS(dstr) &= ~SVf_OOK;
2111 Safefree(SvPVX(dstr) - SvIVX(dstr));
2114 Safefree(SvPVX(dstr));
2116 (void)SvPOK_only(dstr);
2117 SvPV_set(dstr, SvPVX(sstr));
2118 SvLEN_set(dstr, SvLEN(sstr));
2119 SvCUR_set(dstr, SvCUR(sstr));
2121 (void)SvOK_off(sstr);
2122 SvPV_set(sstr, Nullch);
2127 else { /* have to copy actual string */
2128 STRLEN len = SvCUR(sstr);
2130 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2131 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2132 SvCUR_set(dstr, len);
2133 *SvEND(dstr) = '\0';
2134 (void)SvPOK_only(dstr);
2137 if (sflags & SVp_NOK) {
2139 SvNVX(dstr) = SvNVX(sstr);
2141 if (sflags & SVp_IOK) {
2142 (void)SvIOK_on(dstr);
2143 SvIVX(dstr) = SvIVX(sstr);
2146 else if (sflags & SVp_NOK) {
2147 SvNVX(dstr) = SvNVX(sstr);
2148 (void)SvNOK_only(dstr);
2150 (void)SvIOK_on(dstr);
2151 SvIVX(dstr) = SvIVX(sstr);
2154 else if (sflags & SVp_IOK) {
2155 (void)SvIOK_only(dstr);
2156 SvIVX(dstr) = SvIVX(sstr);
2159 (void)SvOK_off(dstr);
2165 sv_setpvn(sv,ptr,len)
2167 register const char *ptr;
2168 register STRLEN len;
2170 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2171 elicit a warning, but it won't hurt. */
2172 if (SvTHINKFIRST(sv)) {
2173 if (SvREADONLY(sv) && curcop != &compiling)
2182 if (SvTYPE(sv) >= SVt_PV) {
2183 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2186 else if (!sv_upgrade(sv, SVt_PV))
2188 SvGROW(sv, len + 1);
2189 Move(ptr,SvPVX(sv),len,char);
2192 (void)SvPOK_only(sv); /* validate pointer */
2199 register const char *ptr;
2201 register STRLEN len;
2203 if (SvTHINKFIRST(sv)) {
2204 if (SvREADONLY(sv) && curcop != &compiling)
2214 if (SvTYPE(sv) >= SVt_PV) {
2215 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2218 else if (!sv_upgrade(sv, SVt_PV))
2220 SvGROW(sv, len + 1);
2221 Move(ptr,SvPVX(sv),len+1,char);
2223 (void)SvPOK_only(sv); /* validate pointer */
2228 sv_usepvn(sv,ptr,len)
2231 register STRLEN len;
2233 if (SvTHINKFIRST(sv)) {
2234 if (SvREADONLY(sv) && curcop != &compiling)
2239 if (!SvUPGRADE(sv, SVt_PV))
2246 Safefree(SvPVX(sv));
2247 Renew(ptr, len+1, char);
2250 SvLEN_set(sv, len+1);
2252 (void)SvPOK_only(sv); /* validate pointer */
2257 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2261 register STRLEN delta;
2263 if (!ptr || !SvPOKp(sv))
2265 if (SvTHINKFIRST(sv)) {
2266 if (SvREADONLY(sv) && curcop != &compiling)
2271 if (SvTYPE(sv) < SVt_PVIV)
2272 sv_upgrade(sv,SVt_PVIV);
2276 SvFLAGS(sv) |= SVf_OOK;
2278 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2279 delta = ptr - SvPVX(sv);
2287 sv_catpvn(sv,ptr,len)
2290 register STRLEN len;
2295 junk = SvPV_force(sv, tlen);
2296 SvGROW(sv, tlen + len + 1);
2299 Move(ptr,SvPVX(sv)+tlen,len,char);
2302 (void)SvPOK_only(sv); /* validate pointer */
2315 if (s = SvPV(sstr, len))
2316 sv_catpvn(dstr,s,len);
2324 register STRLEN len;
2330 junk = SvPV_force(sv, tlen);
2332 SvGROW(sv, tlen + len + 1);
2335 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2337 (void)SvPOK_only(sv); /* validate pointer */
2357 sv_upgrade(sv, SVt_PV);
2358 SvGROW(sv, len + 1);
2363 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2366 sv_magic(sv, obj, how, name, namlen)
2375 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2377 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2378 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2385 if (!SvUPGRADE(sv, SVt_PVMG))
2388 Newz(702,mg, 1, MAGIC);
2389 mg->mg_moremagic = SvMAGIC(sv);
2392 if (!obj || obj == sv || how == '#')
2395 mg->mg_obj = SvREFCNT_inc(obj);
2396 mg->mg_flags |= MGf_REFCOUNTED;
2399 mg->mg_len = namlen;
2402 mg->mg_ptr = savepvn(name, namlen);
2403 else if (namlen == HEf_SVKEY)
2404 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2408 mg->mg_virtual = &vtbl_sv;
2412 mg->mg_virtual = &vtbl_amagic;
2415 mg->mg_virtual = &vtbl_amagicelem;
2420 #endif /* OVERLOAD */
2422 mg->mg_virtual = &vtbl_bm;
2425 mg->mg_virtual = &vtbl_env;
2428 mg->mg_virtual = &vtbl_fm;
2431 mg->mg_virtual = &vtbl_envelem;
2434 mg->mg_virtual = &vtbl_mglob;
2437 mg->mg_virtual = &vtbl_isa;
2440 mg->mg_virtual = &vtbl_isaelem;
2443 mg->mg_virtual = &vtbl_nkeys;
2450 mg->mg_virtual = &vtbl_dbline;
2452 #ifdef USE_LOCALE_COLLATE
2454 mg->mg_virtual = &vtbl_collxfrm;
2456 #endif /* USE_LOCALE_COLLATE */
2458 mg->mg_virtual = &vtbl_pack;
2462 mg->mg_virtual = &vtbl_packelem;
2465 mg->mg_virtual = &vtbl_sig;
2468 mg->mg_virtual = &vtbl_sigelem;
2471 mg->mg_virtual = &vtbl_taint;
2475 mg->mg_virtual = &vtbl_uvar;
2478 mg->mg_virtual = &vtbl_vec;
2481 mg->mg_virtual = &vtbl_substr;
2484 mg->mg_virtual = &vtbl_defelem;
2487 mg->mg_virtual = &vtbl_glob;
2490 mg->mg_virtual = &vtbl_arylen;
2493 mg->mg_virtual = &vtbl_pos;
2495 case '~': /* Reserved for use by extensions not perl internals. */
2496 /* Useful for attaching extension internal data to perl vars. */
2497 /* Note that multiple extensions may clash if magical scalars */
2498 /* etc holding private data from one are passed to another. */
2502 croak("Don't know how to handle magic of type '%c'", how);
2506 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2510 sv_unmagic(sv, type)
2516 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2519 for (mg = *mgp; mg; mg = *mgp) {
2520 if (mg->mg_type == type) {
2521 MGVTBL* vtbl = mg->mg_virtual;
2522 *mgp = mg->mg_moremagic;
2523 if (vtbl && vtbl->svt_free)
2524 (*vtbl->svt_free)(sv, mg);
2525 if (mg->mg_ptr && mg->mg_type != 'g')
2526 if (mg->mg_len >= 0)
2527 Safefree(mg->mg_ptr);
2528 else if (mg->mg_len == HEf_SVKEY)
2529 SvREFCNT_dec((SV*)mg->mg_ptr);
2530 if (mg->mg_flags & MGf_REFCOUNTED)
2531 SvREFCNT_dec(mg->mg_obj);
2535 mgp = &mg->mg_moremagic;
2539 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2546 sv_insert(bigstr,offset,len,little,littlelen)
2555 register char *midend;
2556 register char *bigend;
2560 croak("Can't modify non-existent substring");
2561 SvPV_force(bigstr, na);
2563 i = littlelen - len;
2564 if (i > 0) { /* string might grow */
2565 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2566 mid = big + offset + len;
2567 midend = bigend = big + SvCUR(bigstr);
2570 while (midend > mid) /* shove everything down */
2571 *--bigend = *--midend;
2572 Move(little,big+offset,littlelen,char);
2578 Move(little,SvPVX(bigstr)+offset,len,char);
2583 big = SvPVX(bigstr);
2586 bigend = big + SvCUR(bigstr);
2588 if (midend > bigend)
2589 croak("panic: sv_insert");
2591 if (mid - big > bigend - midend) { /* faster to shorten from end */
2593 Move(little, mid, littlelen,char);
2596 i = bigend - midend;
2598 Move(midend, mid, i,char);
2602 SvCUR_set(bigstr, mid - big);
2605 else if (i = mid - big) { /* faster from front */
2606 midend -= littlelen;
2608 sv_chop(bigstr,midend-i);
2613 Move(little, mid, littlelen,char);
2615 else if (littlelen) {
2616 midend -= littlelen;
2617 sv_chop(bigstr,midend);
2618 Move(little,midend,littlelen,char);
2621 sv_chop(bigstr,midend);
2626 /* make sv point to what nstr did */
2633 U32 refcnt = SvREFCNT(sv);
2634 if (SvTHINKFIRST(sv)) {
2635 if (SvREADONLY(sv) && curcop != &compiling)
2640 if (SvREFCNT(nsv) != 1)
2641 warn("Reference miscount in sv_replace()");
2642 if (SvMAGICAL(sv)) {
2646 sv_upgrade(nsv, SVt_PVMG);
2647 SvMAGIC(nsv) = SvMAGIC(sv);
2648 SvFLAGS(nsv) |= SvMAGICAL(sv);
2654 assert(!SvREFCNT(sv));
2655 StructCopy(nsv,sv,SV);
2656 SvREFCNT(sv) = refcnt;
2657 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2666 assert(SvREFCNT(sv) == 0);
2669 if (defstash) { /* Still have a symbol table? */
2674 SAVEFREESV(SvSTASH(sv));
2676 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2681 sv_upgrade(&ref, SVt_RV);
2682 SvRV(&ref) = SvREFCNT_inc(sv);
2684 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2685 creating+destructing a ref
2686 leads to disaster. */
2692 perl_call_sv((SV*)GvCV(destructor),
2693 G_DISCARD|G_EVAL|G_KEEPERR);
2694 del_XRV(SvANY(&ref));
2701 SvREFCNT_dec(SvSTASH(sv));
2703 SvOBJECT_off(sv); /* Curse the object. */
2704 if (SvTYPE(sv) != SVt_PVIO)
2705 --sv_objcount; /* XXX Might want something more general */
2710 && (ret = perl_get_sv("DB::ret", FALSE))
2711 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2712 /* Debugger is prone to dangling references. */
2719 croak("DESTROY created new reference to dead object");
2720 /* DESTROY gave object new lease on life */
2725 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2727 switch (SvTYPE(sv)) {
2729 if (IoIFP(sv) != PerlIO_stdin() &&
2730 IoIFP(sv) != PerlIO_stdout() &&
2731 IoIFP(sv) != PerlIO_stderr())
2733 Safefree(IoTOP_NAME(sv));
2734 Safefree(IoFMT_NAME(sv));
2735 Safefree(IoBOTTOM_NAME(sv));
2751 Safefree(GvNAME(sv));
2758 (void)SvOOK_off(sv);
2763 SvREFCNT_dec(SvRV(sv));
2764 else if (SvPVX(sv) && SvLEN(sv))
2765 Safefree(SvPVX(sv));
2775 switch (SvTYPE(sv)) {
2791 del_XPVIV(SvANY(sv));
2794 del_XPVNV(SvANY(sv));
2797 del_XPVMG(SvANY(sv));
2800 del_XPVLV(SvANY(sv));
2803 del_XPVAV(SvANY(sv));
2806 del_XPVHV(SvANY(sv));
2809 del_XPVCV(SvANY(sv));
2812 del_XPVGV(SvANY(sv));
2815 del_XPVBM(SvANY(sv));
2818 del_XPVFM(SvANY(sv));
2821 del_XPVIO(SvANY(sv));
2824 SvFLAGS(sv) &= SVf_BREAK;
2825 SvFLAGS(sv) |= SVTYPEMASK;
2843 if (SvREADONLY(sv)) {
2844 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2847 if (SvREFCNT(sv) == 0) {
2848 if (SvFLAGS(sv) & SVf_BREAK)
2850 if (in_clean_all) /* All is fair */
2852 warn("Attempt to free unreferenced scalar");
2855 if (--SvREFCNT(sv) > 0)
2859 warn("Attempt to free temp prematurely");
2881 junk = SvPV(sv, len);
2900 pv1 = SvPV(str1, cur1);
2905 pv2 = SvPV(str2, cur2);
2910 return memEQ(pv1, pv2, cur1);
2919 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2921 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2925 return cur2 ? -1 : 0;
2930 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2933 return retval < 0 ? -1 : 1;
2938 return cur1 < cur2 ? -1 : 1;
2942 sv_cmp_locale(sv1, sv2)
2946 #ifdef USE_LOCALE_COLLATE
2952 if (collation_standard)
2956 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2958 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2960 if (!pv1 || !len1) {
2971 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2974 return retval < 0 ? -1 : 1;
2977 * When the result of collation is equality, that doesn't mean
2978 * that there are no differences -- some locales exclude some
2979 * characters from consideration. So to avoid false equalities,
2980 * we use the raw string as a tiebreaker.
2986 #endif /* USE_LOCALE_COLLATE */
2988 return sv_cmp(sv1, sv2);
2991 #ifdef USE_LOCALE_COLLATE
2993 * Any scalar variable may carry an 'o' magic that contains the
2994 * scalar data of the variable transformed to such a format that
2995 * a normal memory comparison can be used to compare the data
2996 * according to the locale settings.
2999 sv_collxfrm(sv, nxp)
3005 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3006 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3011 Safefree(mg->mg_ptr);
3013 if ((xf = mem_collxfrm(s, len, &xlen))) {
3014 if (SvREADONLY(sv)) {
3020 sv_magic(sv, 0, 'o', 0, 0);
3021 mg = mg_find(sv, 'o');
3034 if (mg && mg->mg_ptr) {
3036 return mg->mg_ptr + sizeof(collation_ix);
3044 #endif /* USE_LOCALE_COLLATE */
3047 sv_gets(sv,fp,append)
3049 register PerlIO *fp;
3054 register STDCHAR rslast;
3055 register STDCHAR *bp;
3059 if (SvTHINKFIRST(sv)) {
3060 if (SvREADONLY(sv) && curcop != &compiling)
3065 if (!SvUPGRADE(sv, SVt_PV))
3073 else if (RsPARA(rs)) {
3078 rsptr = SvPV(rs, rslen);
3079 rslast = rslen ? rsptr[rslen - 1] : '\0';
3081 if (RsPARA(rs)) { /* have to do this both before and after */
3082 do { /* to make sure file boundaries work right */
3085 i = PerlIO_getc(fp);
3089 PerlIO_ungetc(fp,i);
3095 /* See if we know enough about I/O mechanism to cheat it ! */
3097 /* This used to be #ifdef test - it is made run-time test for ease
3098 of abstracting out stdio interface. One call should be cheap
3099 enough here - and may even be a macro allowing compile
3103 if (PerlIO_fast_gets(fp)) {
3106 * We're going to steal some values from the stdio struct
3107 * and put EVERYTHING in the innermost loop into registers.
3109 register STDCHAR *ptr;
3113 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3114 /* An ungetc()d char is handled separately from the regular
3115 * buffer, so we getc() it back out and stuff it in the buffer.
3117 i = PerlIO_getc(fp);
3118 if (i == EOF) return 0;
3119 *(--((*fp)->_ptr)) = (unsigned char) i;
3123 /* Here is some breathtakingly efficient cheating */
3125 cnt = PerlIO_get_cnt(fp); /* get count into register */
3126 (void)SvPOK_only(sv); /* validate pointer */
3127 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3128 if (cnt > 80 && SvLEN(sv) > append) {
3129 shortbuffered = cnt - SvLEN(sv) + append + 1;
3130 cnt -= shortbuffered;
3134 /* remember that cnt can be negative */
3135 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3140 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3141 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3142 DEBUG_P(PerlIO_printf(Perl_debug_log,
3143 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3144 DEBUG_P(PerlIO_printf(Perl_debug_log,
3145 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3146 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3147 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3152 while (cnt > 0) { /* this | eat */
3154 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3155 goto thats_all_folks; /* screams | sed :-) */
3159 Copy(ptr, bp, cnt, char); /* this | eat */
3160 bp += cnt; /* screams | dust */
3161 ptr += cnt; /* louder | sed :-) */
3166 if (shortbuffered) { /* oh well, must extend */
3167 cnt = shortbuffered;
3169 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3171 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3172 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3176 DEBUG_P(PerlIO_printf(Perl_debug_log,
3177 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3178 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3179 DEBUG_P(PerlIO_printf(Perl_debug_log,
3180 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3181 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3182 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3183 /* This used to call 'filbuf' in stdio form, but as that behaves like
3184 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3185 another abstraction. */
3186 i = PerlIO_getc(fp); /* get more characters */
3187 DEBUG_P(PerlIO_printf(Perl_debug_log,
3188 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3189 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3190 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3191 cnt = PerlIO_get_cnt(fp);
3192 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3193 DEBUG_P(PerlIO_printf(Perl_debug_log,
3194 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3196 if (i == EOF) /* all done for ever? */
3197 goto thats_really_all_folks;
3199 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3201 SvGROW(sv, bpx + cnt + 2);
3202 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3204 *bp++ = i; /* store character from PerlIO_getc */
3206 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3207 goto thats_all_folks;
3211 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3212 memNE((char*)bp - rslen, rsptr, rslen))
3213 goto screamer; /* go back to the fray */
3214 thats_really_all_folks:
3216 cnt += shortbuffered;
3217 DEBUG_P(PerlIO_printf(Perl_debug_log,
3218 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3219 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3220 DEBUG_P(PerlIO_printf(Perl_debug_log,
3221 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3222 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3223 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3225 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3226 DEBUG_P(PerlIO_printf(Perl_debug_log,
3227 "Screamer: done, len=%d, string=|%.*s|\n",
3228 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3232 /*The big, slow, and stupid way */
3237 register STDCHAR *bpe = buf + sizeof(buf);
3239 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3240 ; /* keep reading */
3244 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3245 /* Accomodate broken VAXC compiler, which applies U8 cast to
3246 * both args of ?: operator, causing EOF to change into 255
3248 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3252 sv_catpvn(sv, (char *) buf, cnt);
3254 sv_setpvn(sv, (char *) buf, cnt);
3256 if (i != EOF && /* joy */
3258 SvCUR(sv) < rslen ||
3259 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3263 * If we're reading from a TTY and we get a short read,
3264 * indicating that the user hit his EOF character, we need
3265 * to notice it now, because if we try to read from the TTY
3266 * again, the EOF condition will disappear.
3268 * The comparison of cnt to sizeof(buf) is an optimization
3269 * that prevents unnecessary calls to feof().
3273 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3278 if (RsPARA(rs)) { /* have to do this both before and after */
3279 while (i != EOF) { /* to make sure file boundaries work right */
3280 i = PerlIO_getc(fp);
3282 PerlIO_ungetc(fp,i);
3288 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3301 if (SvTHINKFIRST(sv)) {
3302 if (SvREADONLY(sv) && curcop != &compiling)
3306 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3307 #endif /* OVERLOAD */
3313 flags = SvFLAGS(sv);
3314 if (flags & SVp_NOK) {
3315 (void)SvNOK_only(sv);
3319 if (flags & SVp_IOK) {
3320 if (SvIVX(sv) == IV_MAX)
3321 sv_setnv(sv, (double)IV_MAX + 1.0);
3323 (void)SvIOK_only(sv);
3328 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3329 if ((flags & SVTYPEMASK) < SVt_PVNV)
3330 sv_upgrade(sv, SVt_NV);
3332 (void)SvNOK_only(sv);
3336 while (isALPHA(*d)) d++;
3337 while (isDIGIT(*d)) d++;
3339 SET_NUMERIC_STANDARD();
3340 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3344 while (d >= SvPVX(sv)) {
3354 *(d--) -= 'z' - 'a' + 1;
3357 /* oh,oh, the number grew */
3358 SvGROW(sv, SvCUR(sv) + 2);
3360 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3376 if (SvTHINKFIRST(sv)) {
3377 if (SvREADONLY(sv) && curcop != &compiling)
3381 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3382 #endif /* OVERLOAD */
3388 flags = SvFLAGS(sv);
3389 if (flags & SVp_NOK) {
3391 (void)SvNOK_only(sv);
3394 if (flags & SVp_IOK) {
3395 if (SvIVX(sv) == IV_MIN)
3396 sv_setnv(sv, (double)IV_MIN - 1.0);
3398 (void)SvIOK_only(sv);
3403 if (!(flags & SVp_POK)) {
3404 if ((flags & SVTYPEMASK) < SVt_PVNV)
3405 sv_upgrade(sv, SVt_NV);
3407 (void)SvNOK_only(sv);
3410 SET_NUMERIC_STANDARD();
3411 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3414 /* Make a string that will exist for the duration of the expression
3415 * evaluation. Actually, it may have to last longer than that, but
3416 * hopefully we won't free it until it has been assigned to a
3417 * permanent location. */
3422 tmps_max += (tmps_max < 512) ? 128 : 512;
3423 Renew(tmps_stack, tmps_max, SV*);
3427 sv_mortalcopy(oldstr)
3436 sv_setsv(sv,oldstr);
3437 if (++tmps_ix >= tmps_max)
3439 tmps_stack[tmps_ix] = sv;
3452 SvFLAGS(sv) = SVs_TEMP;
3453 if (++tmps_ix >= tmps_max)
3455 tmps_stack[tmps_ix] = sv;
3459 /* same thing without the copying */
3467 if (SvREADONLY(sv) && curcop != &compiling)
3469 if (++tmps_ix >= tmps_max)
3471 tmps_stack[tmps_ix] = sv;
3489 sv_setpvn(sv,s,len);
3495 newSVpvf(const char* pat, ...)
3499 newSVpvf(pat, va_alist)
3512 va_start(args, pat);
3516 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3560 sv_upgrade(sv, SVt_RV);
3562 SvRV(sv) = SvREFCNT_inc(ref);
3578 #endif /* CRIPPLED_CC */
3580 /* make an exact duplicate of old */
3590 if (SvTYPE(old) == SVTYPEMASK) {
3591 warn("semi-panic: attempt to dup freed string");
3621 if (!*s) { /* reset ?? searches */
3622 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3623 pm->op_pmflags &= ~PMf_USED;
3628 /* reset variables */
3630 if (!HvARRAY(stash))
3633 Zero(todo, 256, char);
3640 for ( ; i <= max; i++) {
3643 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3644 for (entry = HvARRAY(stash)[i];
3646 entry = HeNEXT(entry)) {
3647 if (!todo[(U8)*HeKEY(entry)])
3649 gv = (GV*)HeVAL(entry);
3652 if (SvTYPE(sv) >= SVt_PV) {
3654 if (SvPVX(sv) != Nullch)
3661 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3663 #ifndef VMS /* VMS has no environ array */
3665 environ[0] = Nullch;
3680 switch (SvTYPE(sv)) {
3688 croak("Bad filehandle: %s", GvNAME(gv));
3692 croak(no_usym, "filehandle");
3694 return sv_2io(SvRV(sv));
3695 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3701 croak("Bad filehandle: %s", SvPV(sv,na));
3708 sv_2cv(sv, st, gvp, lref)
3718 return *gvp = Nullgv, Nullcv;
3719 switch (SvTYPE(sv)) {
3739 if (SvTYPE(cv) != SVt_PVCV)
3740 croak("Not a subroutine reference");
3748 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3754 if (lref && !GvCVu(gv)) {
3757 tmpsv = NEWSV(704,0);
3758 gv_efullname3(tmpsv, gv, Nullch);
3759 newSUB(start_subparse(FALSE, 0),
3760 newSVOP(OP_CONST, 0, tmpsv),
3765 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3782 if ((Xpv = (XPV*)SvANY(sv)) &&
3783 (*Xpv->xpv_pv > '0' ||
3785 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3792 return SvIVX(sv) != 0;
3795 return SvNVX(sv) != 0.0;
3797 return sv_2bool(sv);
3801 #endif /* !SvTRUE */
3846 return sv_2pv(sv, lp);
3851 sv_pvn_force(sv, lp)
3857 if (SvREADONLY(sv) && curcop != &compiling)
3864 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3865 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3871 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3872 op_name[op->op_type]);
3876 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3881 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3882 SvGROW(sv, len + 1);
3883 Move(s,SvPVX(sv),len,char);
3888 SvPOK_on(sv); /* validate pointer */
3890 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3891 (unsigned long)sv,SvPVX(sv)));
3902 if (ob && SvOBJECT(sv))
3903 return HvNAME(SvSTASH(sv));
3905 switch (SvTYPE(sv)) {
3919 case SVt_PVLV: return "LVALUE";
3920 case SVt_PVAV: return "ARRAY";
3921 case SVt_PVHV: return "HASH";
3922 case SVt_PVCV: return "CODE";
3923 case SVt_PVGV: return "GLOB";
3924 case SVt_PVFM: return "FORMLINE";
3925 default: return "UNKNOWN";
3961 return strEQ(HvNAME(SvSTASH(sv)), name);
3965 newSVrv(rv, classname)
3975 sv_upgrade(rv, SVt_RV);
3976 SvRV(rv) = SvREFCNT_inc(sv);
3980 HV* stash = gv_stashpv(classname, TRUE);
3981 (void)sv_bless(rv, stash);
3987 sv_setref_pv(rv, classname, pv)
3993 sv_setsv(rv, &sv_undef);
3995 sv_setiv(newSVrv(rv,classname), (IV)pv);
4000 sv_setref_iv(rv, classname, iv)
4005 sv_setiv(newSVrv(rv,classname), iv);
4010 sv_setref_nv(rv, classname, nv)
4015 sv_setnv(newSVrv(rv,classname), nv);
4020 sv_setref_pvn(rv, classname, pv, n)
4026 sv_setpvn(newSVrv(rv,classname), pv, n);
4037 croak("Can't bless non-reference value");
4039 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4040 if (SvREADONLY(ref))
4042 if (SvOBJECT(ref)) {
4043 if (SvTYPE(ref) != SVt_PVIO)
4045 SvREFCNT_dec(SvSTASH(ref));
4049 if (SvTYPE(ref) != SVt_PVIO)
4051 (void)SvUPGRADE(ref, SVt_PVMG);
4052 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4059 #endif /* OVERLOAD */
4068 assert(SvTYPE(sv) == SVt_PVGV);
4072 sv_unmagic(sv, '*');
4073 Safefree(GvNAME(sv));
4075 SvFLAGS(sv) &= ~SVTYPEMASK;
4076 SvFLAGS(sv) |= SVt_PVMG;
4087 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4090 sv_2mortal(rv); /* Schedule for freeing later */
4097 sv_magic((sv), Nullsv, 't', Nullch, 0);
4104 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4105 MAGIC *mg = mg_find(sv, 't');
4115 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4116 MAGIC *mg = mg_find(sv, 't');
4117 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4125 sv_setpvf(SV *sv, const char* pat, ...)
4129 sv_setpvf(sv, pat, va_alist)
4137 va_start(args, pat);
4141 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4147 sv_catpvf(SV *sv, const char* pat, ...)
4151 sv_catpvf(sv, pat, va_alist)
4159 va_start(args, pat);
4163 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4168 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4177 sv_setpvn(sv, "", 0);
4178 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4182 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4196 static char nullstr[] = "(null)";
4198 /* no matter what, this is a string now */
4199 (void)SvPV_force(sv, origlen);
4201 /* special-case "", "%s", and "%_" */
4204 if (patlen == 2 && pat[0] == '%') {
4208 char *s = va_arg(*args, char*);
4209 sv_catpv(sv, s ? s : nullstr);
4211 else if (svix < svmax)
4212 sv_catsv(sv, *svargs);
4216 sv_catsv(sv, va_arg(*args, SV*));
4219 /* See comment on '_' below */
4224 patend = (char*)pat + patlen;
4225 for (p = (char*)pat; p < patend; p = q) {
4233 bool has_precis = FALSE;
4237 STRLEN esignlen = 0;
4239 char *eptr = Nullch;
4241 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4243 static char *efloatbuf = Nullch;
4244 static STRLEN efloatsize = 0;
4256 for (q = p; q < patend && *q != '%'; ++q) ;
4258 sv_catpvn(sv, p, q - p);
4296 case '1': case '2': case '3':
4297 case '4': case '5': case '6':
4298 case '7': case '8': case '9':
4301 width = width * 10 + (*q++ - '0');
4306 i = va_arg(*args, int);
4308 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4310 width = (i < 0) ? -i : i;
4321 i = va_arg(*args, int);
4323 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4324 precis = (i < 0) ? 0 : i;
4330 precis = precis * 10 + (*q++ - '0');
4339 #if 0 /* when quads have better support within Perl */
4340 if (*(q + 1) == 'l') {
4366 c = va_arg(*args, int);
4368 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4375 eptr = va_arg(*args, char*);
4377 elen = strlen(eptr);
4380 elen = sizeof nullstr - 1;
4383 else if (svix < svmax)
4384 eptr = SvPVx(svargs[svix++], elen);
4389 * The "%_" hack might have to be changed someday,
4390 * if ISO or ANSI decide to use '_' for something.
4391 * So we keep it hidden from users' code.
4395 eptr = SvPVx(va_arg(*args, SV*), elen);
4398 if (has_precis && elen > precis)
4406 uv = (UV)va_arg(*args, void*);
4408 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4419 case 'h': iv = (short)va_arg(*args, int); break;
4420 default: iv = va_arg(*args, int); break;
4421 case 'l': iv = va_arg(*args, long); break;
4422 case 'V': iv = va_arg(*args, IV); break;
4426 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4428 case 'h': iv = (short)iv; break;
4429 default: iv = (int)iv; break;
4430 case 'l': iv = (long)iv; break;
4437 esignbuf[esignlen++] = plus;
4441 esignbuf[esignlen++] = '-';
4467 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4468 default: uv = va_arg(*args, unsigned); break;
4469 case 'l': uv = va_arg(*args, unsigned long); break;
4470 case 'V': uv = va_arg(*args, UV); break;
4474 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4476 case 'h': uv = (unsigned short)uv; break;
4477 default: uv = (unsigned)uv; break;
4478 case 'l': uv = (unsigned long)uv; break;
4484 eptr = ebuf + sizeof ebuf;
4488 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4494 esignbuf[esignlen++] = '0';
4495 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4501 *--eptr = '0' + dig;
4503 if (alt && *eptr != '0')
4506 default: /* it had better be ten or less */
4509 *--eptr = '0' + dig;
4510 } while (uv /= base);
4513 elen = (ebuf + sizeof ebuf) - eptr;
4514 if (has_precis && precis > elen)
4515 zeros = precis - elen;
4518 /* FLOATING POINT */
4521 c = 'f'; /* maybe %F isn't supported here */
4527 /* This is evil, but floating point is even more evil */
4530 nv = va_arg(*args, double);
4532 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4535 if (c != 'e' && c != 'E') {
4537 (void)frexp(nv, &i);
4538 if (i == PERL_INT_MIN)
4539 die("panic: frexp");
4541 need = BIT_DIGITS(i);
4543 need += has_precis ? precis : 6; /* known default */
4547 need += 20; /* fudge factor */
4548 if (efloatsize < need) {
4549 Safefree(efloatbuf);
4550 efloatsize = need + 20; /* more fudge */
4551 New(906, efloatbuf, efloatsize, char);
4554 eptr = ebuf + sizeof ebuf;
4559 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4564 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4574 (void)sprintf(efloatbuf, eptr, nv);
4577 elen = strlen(efloatbuf);
4581 * User-defined locales may include arbitrary characters.
4582 * And, unfortunately, some system may alloc the "C" locale
4583 * to be overridden by a malicious user.
4586 *used_locale = TRUE;
4587 #endif /* LC_NUMERIC */
4594 i = SvCUR(sv) - origlen;
4597 case 'h': *(va_arg(*args, short*)) = i; break;
4598 default: *(va_arg(*args, int*)) = i; break;
4599 case 'l': *(va_arg(*args, long*)) = i; break;
4600 case 'V': *(va_arg(*args, IV*)) = i; break;
4603 else if (svix < svmax)
4604 sv_setuv(svargs[svix++], (UV)i);
4605 continue; /* not "break" */
4611 if (!args && dowarn &&
4612 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4613 SV *msg = sv_newmortal();
4614 sv_setpvf(msg, "Invalid conversion in %s: ",
4615 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4617 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4620 sv_catpv(msg, "end of string");
4621 warn("%_", msg); /* yes, this is reentrant */
4623 /* output mangled stuff */
4629 have = esignlen + zeros + elen;
4630 need = (have > width ? have : width);
4633 SvGROW(sv, SvLEN(sv) + need);
4635 if (esignlen && fill == '0') {
4636 for (i = 0; i < esignlen; i++)
4640 memset(p, fill, gap);
4643 if (esignlen && fill != '0') {
4644 for (i = 0; i < esignlen; i++)
4648 for (i = zeros; i; i--)
4652 memcpy(p, eptr, elen);
4656 memset(p, ' ', gap);
4660 SvCUR(sv) = p - SvPVX(sv);
4669 SV *d = sv_newmortal();
4675 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4679 flags = SvFLAGS(sv);
4682 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4683 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4684 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4685 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4686 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4687 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4688 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4689 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4690 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4691 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4693 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4694 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4695 if (flags & SVf_POK) sv_catpv(d, "POK,");
4696 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4697 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4698 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4699 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4702 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4703 #endif /* OVERLOAD */
4704 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4705 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4706 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4707 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4712 if (CvANON(sv)) sv_catpv(d, "ANON,");
4713 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4714 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4715 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4716 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4719 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4720 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4723 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4724 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4725 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4726 if (GvIMPORTED(sv)) {
4727 sv_catpv(d, "IMPORT");
4728 if (GvIMPORTED(sv) == GVf_IMPORTED)
4729 sv_catpv(d, "ALL,");
4732 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4733 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4734 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4735 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4741 if (*(SvEND(d) - 1) == ',')
4742 SvPVX(d)[--SvCUR(d)] = '\0';
4746 PerlIO_printf(Perl_debug_log, "SV = ");
4749 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4752 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4755 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4758 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4761 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4764 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4767 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4770 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4773 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4776 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4779 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4782 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4785 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4788 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4791 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4794 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4797 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4800 if (type >= SVt_PVIV || type == SVt_IV)
4801 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4802 if (type >= SVt_PVNV || type == SVt_NV) {
4803 SET_NUMERIC_STANDARD();
4804 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4807 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4813 if (type <= SVt_PVLV) {
4815 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4816 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4818 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4820 if (type >= SVt_PVMG) {
4822 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4825 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4829 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4830 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4831 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4832 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4833 sv_dump(LvTARG(sv));
4836 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4837 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4838 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4839 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4840 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4841 flags = AvFLAGS(sv);
4843 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4844 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4845 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4846 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4847 SvCUR(d) ? SvPVX(d) + 1 : "");
4850 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4851 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4852 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4853 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4854 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4855 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4857 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4859 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4863 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4866 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4867 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4868 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4869 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4870 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4871 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4872 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4873 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4875 PerlIO_printf(Perl_debug_log, "\n");
4877 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4878 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4879 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4880 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4881 if (type == SVt_PVFM)
4882 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4885 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4886 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4887 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4888 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4889 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4890 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4891 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4892 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4893 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4894 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4895 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4896 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4897 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4898 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4899 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4900 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4903 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4904 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4905 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4906 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4907 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4908 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4909 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4910 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4911 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4912 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4913 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4914 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4915 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4916 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4917 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4918 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));