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();
897 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
901 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
902 if (sv == &sv_undef) {
903 sv_catpv(t, "SV_UNDEF");
904 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
905 SVs_GMG|SVs_SMG|SVs_RMG)) &&
909 else if (sv == &sv_no) {
910 sv_catpv(t, "SV_NO");
911 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
912 SVs_GMG|SVs_SMG|SVs_RMG)) &&
913 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
920 sv_catpv(t, "SV_YES");
921 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
922 SVs_GMG|SVs_SMG|SVs_RMG)) &&
923 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
926 SvPVX(sv) && *SvPVX(sv) == '1' &&
932 else if (SvREFCNT(sv) == 0) {
938 if (SvCUR(t) + unref > 10) {
939 SvCUR(t) = unref + 3;
947 switch (SvTYPE(sv)) {
949 sv_catpv(t, "FREED");
953 sv_catpv(t, "UNDEF");
987 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1007 sv_catpv(t, "(null)");
1009 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1011 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1013 else if (SvNOKp(sv)) {
1014 SET_NUMERIC_STANDARD();
1015 sv_catpvf(t, "(%g)",SvNVX(sv));
1017 else if (SvIOKp(sv))
1018 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1037 char *s = SvPVX(sv);
1038 SvLEN(sv) += SvIVX(sv);
1039 SvPVX(sv) -= SvIVX(sv);
1041 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1043 SvFLAGS(sv) &= ~SVf_OOK;
1051 register I32 newlen;
1053 unsigned long newlen;
1058 #ifdef HAS_64K_LIMIT
1059 if (newlen >= 0x10000) {
1060 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1063 #endif /* HAS_64K_LIMIT */
1066 if (SvTYPE(sv) < SVt_PV) {
1067 sv_upgrade(sv, SVt_PV);
1070 else if (SvOOK(sv)) { /* pv is offset? */
1073 if (newlen > SvLEN(sv))
1074 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1078 if (newlen > SvLEN(sv)) { /* need more room? */
1080 Renew(s,newlen,char);
1082 New(703,s,newlen,char);
1084 SvLEN_set(sv, newlen);
1094 if (SvTHINKFIRST(sv)) {
1095 if (SvREADONLY(sv) && curcop != &compiling)
1100 switch (SvTYPE(sv)) {
1102 sv_upgrade(sv, SVt_IV);
1105 sv_upgrade(sv, SVt_PVNV);
1109 sv_upgrade(sv, SVt_PVIV);
1123 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1124 op_desc[op->op_type]);
1126 (void)SvIOK_only(sv); /* validate number */
1139 sv_setnv(sv, (double)u);
1147 if (SvTHINKFIRST(sv)) {
1148 if (SvREADONLY(sv) && curcop != &compiling)
1153 switch (SvTYPE(sv)) {
1156 sv_upgrade(sv, SVt_NV);
1162 sv_upgrade(sv, SVt_PVNV);
1169 (void)SvOOK_off(sv);
1182 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1183 op_name[op->op_type]);
1186 (void)SvNOK_only(sv); /* validate number */
1197 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1198 /* each *s can expand to 4 chars + "...\0",
1199 i.e. need room for 8 chars */
1201 for (s = SvPVX(sv); *s && d < limit; s++) {
1203 if (ch & 128 && !isPRINT_LC(ch)) {
1212 else if (ch == '\r') {
1216 else if (ch == '\f') {
1220 else if (ch == '\\') {
1224 else if (isPRINT_LC(ch))
1239 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1240 op_name[op->op_type]);
1242 warn("Argument \"%s\" isn't numeric", tmpbuf);
1251 if (SvGMAGICAL(sv)) {
1256 if (SvNVX(sv) < 0.0)
1257 return I_V(SvNVX(sv));
1259 return (IV) U_V(SvNVX(sv));
1261 if (SvPOKp(sv) && SvLEN(sv))
1264 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1269 if (SvTHINKFIRST(sv)) {
1273 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1274 return SvIV(tmpstr);
1275 #endif /* OVERLOAD */
1276 return (IV)SvRV(sv);
1278 if (SvREADONLY(sv)) {
1280 if (SvNVX(sv) < 0.0)
1281 return I_V(SvNVX(sv));
1283 return (IV) U_V(SvNVX(sv));
1285 if (SvPOKp(sv) && SvLEN(sv))
1292 switch (SvTYPE(sv)) {
1294 sv_upgrade(sv, SVt_IV);
1297 sv_upgrade(sv, SVt_PVIV);
1300 sv_upgrade(sv, SVt_PVNV);
1305 if (SvNVX(sv) < 0.0)
1306 SvIVX(sv) = I_V(SvNVX(sv));
1308 SvUVX(sv) = U_V(SvNVX(sv));
1310 else if (SvPOKp(sv) && SvLEN(sv)) {
1312 SvIVX(sv) = asIV(sv);
1315 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1319 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1320 (unsigned long)sv,(long)SvIVX(sv)));
1330 if (SvGMAGICAL(sv)) {
1335 return U_V(SvNVX(sv));
1336 if (SvPOKp(sv) && SvLEN(sv))
1339 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1344 if (SvTHINKFIRST(sv)) {
1348 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1349 return SvUV(tmpstr);
1350 #endif /* OVERLOAD */
1351 return (UV)SvRV(sv);
1353 if (SvREADONLY(sv)) {
1355 return U_V(SvNVX(sv));
1357 if (SvPOKp(sv) && SvLEN(sv))
1364 switch (SvTYPE(sv)) {
1366 sv_upgrade(sv, SVt_IV);
1369 sv_upgrade(sv, SVt_PVIV);
1372 sv_upgrade(sv, SVt_PVNV);
1377 SvUVX(sv) = U_V(SvNVX(sv));
1379 else if (SvPOKp(sv) && SvLEN(sv)) {
1381 SvUVX(sv) = asUV(sv);
1384 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1388 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1389 (unsigned long)sv,SvUVX(sv)));
1399 if (SvGMAGICAL(sv)) {
1403 if (SvPOKp(sv) && SvLEN(sv)) {
1404 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1406 SET_NUMERIC_STANDARD();
1407 return atof(SvPVX(sv));
1410 return (double)SvIVX(sv);
1412 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1417 if (SvTHINKFIRST(sv)) {
1421 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1422 return SvNV(tmpstr);
1423 #endif /* OVERLOAD */
1424 return (double)(unsigned long)SvRV(sv);
1426 if (SvREADONLY(sv)) {
1427 if (SvPOKp(sv) && SvLEN(sv)) {
1428 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1430 SET_NUMERIC_STANDARD();
1431 return atof(SvPVX(sv));
1434 return (double)SvIVX(sv);
1440 if (SvTYPE(sv) < SVt_NV) {
1441 if (SvTYPE(sv) == SVt_IV)
1442 sv_upgrade(sv, SVt_PVNV);
1444 sv_upgrade(sv, SVt_NV);
1445 DEBUG_c(SET_NUMERIC_STANDARD());
1446 DEBUG_c(PerlIO_printf(Perl_debug_log,
1447 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1449 else if (SvTYPE(sv) < SVt_PVNV)
1450 sv_upgrade(sv, SVt_PVNV);
1452 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1454 SvNVX(sv) = (double)SvIVX(sv);
1456 else if (SvPOKp(sv) && SvLEN(sv)) {
1457 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1459 SET_NUMERIC_STANDARD();
1460 SvNVX(sv) = atof(SvPVX(sv));
1463 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1468 DEBUG_c(SET_NUMERIC_STANDARD());
1469 DEBUG_c(PerlIO_printf(Perl_debug_log,
1470 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1478 I32 numtype = looks_like_number(sv);
1482 return atol(SvPVX(sv));
1483 if (!numtype && dowarn)
1485 SET_NUMERIC_STANDARD();
1486 d = atof(SvPVX(sv));
1497 I32 numtype = looks_like_number(sv);
1500 return atol(SvPVX(sv));
1501 if (!numtype && dowarn)
1503 SET_NUMERIC_STANDARD();
1504 return U_V(atof(SvPVX(sv)));
1508 looks_like_number(sv)
1512 register char *send;
1513 register char *sbegin;
1521 else if (SvPOKp(sv))
1522 sbegin = SvPV(sv, len);
1525 send = sbegin + len;
1530 if (*s == '+' || *s == '-')
1533 /* next must be digit or '.' */
1537 } while (isDIGIT(*s));
1540 while (isDIGIT(*s)) /* optional digits after "." */
1544 else if (*s == '.') {
1546 /* no digits before '.' means we need digits after it */
1550 } while (isDIGIT(*s));
1559 * we return 1 if the number can be converted to _integer_ with atol()
1560 * and 2 if you need (int)atof().
1564 /* we can have an optional exponent part */
1565 if (*s == 'e' || *s == 'E') {
1568 if (*s == '+' || *s == '-')
1573 } while (isDIGIT(*s));
1582 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1600 if (SvGMAGICAL(sv)) {
1607 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1612 SET_NUMERIC_STANDARD();
1613 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1618 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1624 if (SvTHINKFIRST(sv)) {
1628 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1629 return SvPV(tmpstr,*lp);
1630 #endif /* OVERLOAD */
1635 switch (SvTYPE(sv)) {
1644 case SVt_PVMG: s = "SCALAR"; break;
1645 case SVt_PVLV: s = "LVALUE"; break;
1646 case SVt_PVAV: s = "ARRAY"; break;
1647 case SVt_PVHV: s = "HASH"; break;
1648 case SVt_PVCV: s = "CODE"; break;
1649 case SVt_PVGV: s = "GLOB"; break;
1650 case SVt_PVFM: s = "FORMATLINE"; break;
1651 case SVt_PVIO: s = "IO"; break;
1652 default: s = "UNKNOWN"; break;
1656 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1659 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1665 if (SvREADONLY(sv)) {
1667 SET_NUMERIC_STANDARD();
1668 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1673 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1683 if (!SvUPGRADE(sv, SVt_PV))
1686 if (SvTYPE(sv) < SVt_PVNV)
1687 sv_upgrade(sv, SVt_PVNV);
1690 olderrno = errno; /* some Xenix systems wipe out errno here */
1692 if (SvNVX(sv) == 0.0)
1693 (void)strcpy(s,"0");
1697 SET_NUMERIC_STANDARD();
1698 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1701 #ifdef FIXNEGATIVEZERO
1702 if (*s == '-' && s[1] == '0' && !s[2])
1711 else if (SvIOKp(sv)) {
1712 if (SvTYPE(sv) < SVt_PVIV)
1713 sv_upgrade(sv, SVt_PVIV);
1714 olderrno = errno; /* some Xenix systems wipe out errno here */
1715 sv_setpvf(sv, "%Vd", SvIVX(sv));
1720 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1725 *lp = s - SvPVX(sv);
1728 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1732 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1733 /* Sneaky stuff here */
1737 tsv = newSVpv(tokenbuf, 0);
1753 len = strlen(tokenbuf);
1755 #ifdef FIXNEGATIVEZERO
1756 if (len == 2 && t[0] == '-' && t[1] == '0') {
1761 (void)SvUPGRADE(sv, SVt_PV);
1763 s = SvGROW(sv, len + 1);
1771 /* This function is only called on magical items */
1785 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1786 return SvTRUE(tmpsv);
1788 #endif /* OVERLOAD */
1789 return SvRV(sv) != 0;
1793 if ((Xpv = (XPV*)SvANY(sv)) &&
1794 (*Xpv->xpv_pv > '0' ||
1796 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
1803 return SvIVX(sv) != 0;
1806 return SvNVX(sv) != 0.0;
1813 /* Note: sv_setsv() should not be called with a source string that needs
1814 * to be reused, since it may destroy the source string if it is marked
1823 register U32 sflags;
1829 if (SvTHINKFIRST(dstr)) {
1830 if (SvREADONLY(dstr) && curcop != &compiling)
1837 stype = SvTYPE(sstr);
1838 dtype = SvTYPE(dstr);
1840 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1841 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1842 sv_setpvn(dstr, "", 0);
1843 (void)SvPOK_only(dstr);
1844 dtype = SvTYPE(dstr);
1849 #endif /* OVERLOAD */
1850 /* There's a lot of redundancy below but we're going for speed here */
1854 (void)SvOK_off(dstr);
1857 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1859 sv_upgrade(dstr, SVt_IV);
1860 else if (dtype == SVt_NV)
1861 sv_upgrade(dstr, SVt_PVNV);
1863 sv_upgrade(dstr, SVt_PVIV);
1867 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1869 sv_upgrade(dstr, SVt_NV);
1871 sv_upgrade(dstr, SVt_PVNV);
1876 sv_upgrade(dstr, SVt_RV);
1877 else if (dtype == SVt_PVGV &&
1878 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1881 if (curcop->cop_stash != GvSTASH(dstr))
1882 GvIMPORTED_on(dstr);
1892 sv_upgrade(dstr, SVt_PV);
1895 if (dtype < SVt_PVIV)
1896 sv_upgrade(dstr, SVt_PVIV);
1899 if (dtype < SVt_PVNV)
1900 sv_upgrade(dstr, SVt_PVNV);
1904 sv_upgrade(dstr, SVt_PVLV);
1912 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1913 op_name[op->op_type]);
1915 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1919 if (dtype <= SVt_PVGV) {
1921 if (dtype != SVt_PVGV) {
1922 char *name = GvNAME(sstr);
1923 STRLEN len = GvNAMELEN(sstr);
1924 sv_upgrade(dstr, SVt_PVGV);
1925 sv_magic(dstr, dstr, '*', name, len);
1926 GvSTASH(dstr) = GvSTASH(sstr);
1927 GvNAME(dstr) = savepvn(name, len);
1928 GvNAMELEN(dstr) = len;
1929 SvFAKE_on(dstr); /* can coerce to non-glob */
1931 /* ahem, death to those who redefine active sort subs */
1932 else if (curstack == sortstack
1933 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1934 croak("Can't redefine active sort subroutine %s", GvNAME(dstr));
1935 (void)SvOK_off(dstr);
1936 GvINTRO_off(dstr); /* one-shot flag */
1938 GvGP(dstr) = gp_ref(GvGP(sstr));
1940 if (curcop->cop_stash != GvSTASH(dstr))
1941 GvIMPORTED_on(dstr);
1948 if (SvGMAGICAL(sstr)) {
1950 if (SvTYPE(sstr) != stype) {
1951 stype = SvTYPE(sstr);
1952 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1957 sv_upgrade(dstr, stype);
1960 sflags = SvFLAGS(sstr);
1962 if (sflags & SVf_ROK) {
1963 if (dtype >= SVt_PV) {
1964 if (dtype == SVt_PVGV) {
1965 SV *sref = SvREFCNT_inc(SvRV(sstr));
1967 int intro = GvINTRO(dstr);
1971 GvGP(dstr)->gp_refcnt--;
1972 GvINTRO_off(dstr); /* one-shot flag */
1973 Newz(602,gp, 1, GP);
1974 GvGP(dstr) = gp_ref(gp);
1975 GvSV(dstr) = NEWSV(72,0);
1976 GvLINE(dstr) = curcop->cop_line;
1977 GvEGV(dstr) = (GV*)dstr;
1980 switch (SvTYPE(sref)) {
1983 SAVESPTR(GvAV(dstr));
1985 dref = (SV*)GvAV(dstr);
1986 GvAV(dstr) = (AV*)sref;
1987 if (curcop->cop_stash != GvSTASH(dstr))
1988 GvIMPORTED_AV_on(dstr);
1992 SAVESPTR(GvHV(dstr));
1994 dref = (SV*)GvHV(dstr);
1995 GvHV(dstr) = (HV*)sref;
1996 if (curcop->cop_stash != GvSTASH(dstr))
1997 GvIMPORTED_HV_on(dstr);
2001 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2002 SvREFCNT_dec(GvCV(dstr));
2003 GvCV(dstr) = Nullcv;
2004 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2007 SAVESPTR(GvCV(dstr));
2010 dref = (SV*)GvCV(dstr);
2011 if (GvCV(dstr) != (CV*)sref) {
2012 CV* cv = GvCV(dstr);
2014 if (!GvCVGEN((GV*)dstr) &&
2015 (CvROOT(cv) || CvXSUB(cv)))
2017 /* ahem, death to those who redefine active sort subs */
2018 if (curstack == sortstack && sortcop == CvSTART(cv))
2019 croak("Can't redefine active sort subroutine %s",
2020 GvENAME((GV*)dstr));
2021 if (cv_const_sv(cv))
2022 warn("Constant subroutine %s redefined",
2023 GvENAME((GV*)dstr));
2025 warn("Subroutine %s redefined",
2026 GvENAME((GV*)dstr));
2028 cv_ckproto(cv, (GV*)dstr,
2029 SvPOK(sref) ? SvPVX(sref) : Nullch);
2031 GvCV(dstr) = (CV*)sref;
2032 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2033 GvASSUMECV_on(dstr);
2036 if (curcop->cop_stash != GvSTASH(dstr))
2037 GvIMPORTED_CV_on(dstr);
2041 SAVESPTR(GvIOp(dstr));
2043 dref = (SV*)GvIOp(dstr);
2044 GvIOp(dstr) = (IO*)sref;
2048 SAVESPTR(GvSV(dstr));
2050 dref = (SV*)GvSV(dstr);
2052 if (curcop->cop_stash != GvSTASH(dstr))
2053 GvIMPORTED_SV_on(dstr);
2064 (void)SvOOK_off(dstr); /* backoff */
2065 Safefree(SvPVX(dstr));
2066 SvLEN(dstr)=SvCUR(dstr)=0;
2069 (void)SvOK_off(dstr);
2070 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2072 if (sflags & SVp_NOK) {
2074 SvNVX(dstr) = SvNVX(sstr);
2076 if (sflags & SVp_IOK) {
2077 (void)SvIOK_on(dstr);
2078 SvIVX(dstr) = SvIVX(sstr);
2081 if (SvAMAGIC(sstr)) {
2084 #endif /* OVERLOAD */
2086 else if (sflags & SVp_POK) {
2089 * Check to see if we can just swipe the string. If so, it's a
2090 * possible small lose on short strings, but a big win on long ones.
2091 * It might even be a win on short strings if SvPVX(dstr)
2092 * has to be allocated and SvPVX(sstr) has to be freed.
2095 if (SvTEMP(sstr) && /* slated for free anyway? */
2096 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2098 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2100 SvFLAGS(dstr) &= ~SVf_OOK;
2101 Safefree(SvPVX(dstr) - SvIVX(dstr));
2104 Safefree(SvPVX(dstr));
2106 (void)SvPOK_only(dstr);
2107 SvPV_set(dstr, SvPVX(sstr));
2108 SvLEN_set(dstr, SvLEN(sstr));
2109 SvCUR_set(dstr, SvCUR(sstr));
2111 (void)SvOK_off(sstr);
2112 SvPV_set(sstr, Nullch);
2117 else { /* have to copy actual string */
2118 STRLEN len = SvCUR(sstr);
2120 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2121 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2122 SvCUR_set(dstr, len);
2123 *SvEND(dstr) = '\0';
2124 (void)SvPOK_only(dstr);
2127 if (sflags & SVp_NOK) {
2129 SvNVX(dstr) = SvNVX(sstr);
2131 if (sflags & SVp_IOK) {
2132 (void)SvIOK_on(dstr);
2133 SvIVX(dstr) = SvIVX(sstr);
2136 else if (sflags & SVp_NOK) {
2137 SvNVX(dstr) = SvNVX(sstr);
2138 (void)SvNOK_only(dstr);
2140 (void)SvIOK_on(dstr);
2141 SvIVX(dstr) = SvIVX(sstr);
2144 else if (sflags & SVp_IOK) {
2145 (void)SvIOK_only(dstr);
2146 SvIVX(dstr) = SvIVX(sstr);
2149 (void)SvOK_off(dstr);
2155 sv_setpvn(sv,ptr,len)
2157 register const char *ptr;
2158 register STRLEN len;
2160 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2161 elicit a warning, but it won't hurt. */
2162 if (SvTHINKFIRST(sv)) {
2163 if (SvREADONLY(sv) && curcop != &compiling)
2172 if (SvTYPE(sv) >= SVt_PV) {
2173 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2176 else if (!sv_upgrade(sv, SVt_PV))
2178 SvGROW(sv, len + 1);
2179 Move(ptr,SvPVX(sv),len,char);
2182 (void)SvPOK_only(sv); /* validate pointer */
2189 register const char *ptr;
2191 register STRLEN len;
2193 if (SvTHINKFIRST(sv)) {
2194 if (SvREADONLY(sv) && curcop != &compiling)
2204 if (SvTYPE(sv) >= SVt_PV) {
2205 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2208 else if (!sv_upgrade(sv, SVt_PV))
2210 SvGROW(sv, len + 1);
2211 Move(ptr,SvPVX(sv),len+1,char);
2213 (void)SvPOK_only(sv); /* validate pointer */
2218 sv_usepvn(sv,ptr,len)
2221 register STRLEN len;
2223 if (SvTHINKFIRST(sv)) {
2224 if (SvREADONLY(sv) && curcop != &compiling)
2229 if (!SvUPGRADE(sv, SVt_PV))
2236 Safefree(SvPVX(sv));
2237 Renew(ptr, len+1, char);
2240 SvLEN_set(sv, len+1);
2242 (void)SvPOK_only(sv); /* validate pointer */
2247 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2251 register STRLEN delta;
2253 if (!ptr || !SvPOKp(sv))
2255 if (SvTHINKFIRST(sv)) {
2256 if (SvREADONLY(sv) && curcop != &compiling)
2261 if (SvTYPE(sv) < SVt_PVIV)
2262 sv_upgrade(sv,SVt_PVIV);
2266 SvFLAGS(sv) |= SVf_OOK;
2268 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2269 delta = ptr - SvPVX(sv);
2277 sv_catpvn(sv,ptr,len)
2280 register STRLEN len;
2285 junk = SvPV_force(sv, tlen);
2286 SvGROW(sv, tlen + len + 1);
2289 Move(ptr,SvPVX(sv)+tlen,len,char);
2292 (void)SvPOK_only(sv); /* validate pointer */
2305 if (s = SvPV(sstr, len))
2306 sv_catpvn(dstr,s,len);
2314 register STRLEN len;
2320 junk = SvPV_force(sv, tlen);
2322 SvGROW(sv, tlen + len + 1);
2325 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2327 (void)SvPOK_only(sv); /* validate pointer */
2347 sv_upgrade(sv, SVt_PV);
2348 SvGROW(sv, len + 1);
2353 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2356 sv_magic(sv, obj, how, name, namlen)
2365 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2367 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2368 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2375 if (!SvUPGRADE(sv, SVt_PVMG))
2378 Newz(702,mg, 1, MAGIC);
2379 mg->mg_moremagic = SvMAGIC(sv);
2382 if (!obj || obj == sv || how == '#')
2385 mg->mg_obj = SvREFCNT_inc(obj);
2386 mg->mg_flags |= MGf_REFCOUNTED;
2389 mg->mg_len = namlen;
2392 mg->mg_ptr = savepvn(name, namlen);
2393 else if (namlen == HEf_SVKEY)
2394 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2398 mg->mg_virtual = &vtbl_sv;
2402 mg->mg_virtual = &vtbl_amagic;
2405 mg->mg_virtual = &vtbl_amagicelem;
2410 #endif /* OVERLOAD */
2412 mg->mg_virtual = &vtbl_bm;
2415 mg->mg_virtual = &vtbl_env;
2418 mg->mg_virtual = &vtbl_fm;
2421 mg->mg_virtual = &vtbl_envelem;
2424 mg->mg_virtual = &vtbl_mglob;
2427 mg->mg_virtual = &vtbl_isa;
2430 mg->mg_virtual = &vtbl_isaelem;
2433 mg->mg_virtual = &vtbl_nkeys;
2440 mg->mg_virtual = &vtbl_dbline;
2442 #ifdef USE_LOCALE_COLLATE
2444 mg->mg_virtual = &vtbl_collxfrm;
2446 #endif /* USE_LOCALE_COLLATE */
2448 mg->mg_virtual = &vtbl_pack;
2452 mg->mg_virtual = &vtbl_packelem;
2455 mg->mg_virtual = &vtbl_sig;
2458 mg->mg_virtual = &vtbl_sigelem;
2461 mg->mg_virtual = &vtbl_taint;
2465 mg->mg_virtual = &vtbl_uvar;
2468 mg->mg_virtual = &vtbl_vec;
2471 mg->mg_virtual = &vtbl_substr;
2474 mg->mg_virtual = &vtbl_defelem;
2477 mg->mg_virtual = &vtbl_glob;
2480 mg->mg_virtual = &vtbl_arylen;
2483 mg->mg_virtual = &vtbl_pos;
2485 case '~': /* Reserved for use by extensions not perl internals. */
2486 /* Useful for attaching extension internal data to perl vars. */
2487 /* Note that multiple extensions may clash if magical scalars */
2488 /* etc holding private data from one are passed to another. */
2492 croak("Don't know how to handle magic of type '%c'", how);
2496 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2500 sv_unmagic(sv, type)
2506 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2509 for (mg = *mgp; mg; mg = *mgp) {
2510 if (mg->mg_type == type) {
2511 MGVTBL* vtbl = mg->mg_virtual;
2512 *mgp = mg->mg_moremagic;
2513 if (vtbl && vtbl->svt_free)
2514 (*vtbl->svt_free)(sv, mg);
2515 if (mg->mg_ptr && mg->mg_type != 'g')
2516 if (mg->mg_len >= 0)
2517 Safefree(mg->mg_ptr);
2518 else if (mg->mg_len == HEf_SVKEY)
2519 SvREFCNT_dec((SV*)mg->mg_ptr);
2520 if (mg->mg_flags & MGf_REFCOUNTED)
2521 SvREFCNT_dec(mg->mg_obj);
2525 mgp = &mg->mg_moremagic;
2529 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2536 sv_insert(bigstr,offset,len,little,littlelen)
2545 register char *midend;
2546 register char *bigend;
2550 croak("Can't modify non-existent substring");
2551 SvPV_force(bigstr, na);
2553 i = littlelen - len;
2554 if (i > 0) { /* string might grow */
2555 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2556 mid = big + offset + len;
2557 midend = bigend = big + SvCUR(bigstr);
2560 while (midend > mid) /* shove everything down */
2561 *--bigend = *--midend;
2562 Move(little,big+offset,littlelen,char);
2568 Move(little,SvPVX(bigstr)+offset,len,char);
2573 big = SvPVX(bigstr);
2576 bigend = big + SvCUR(bigstr);
2578 if (midend > bigend)
2579 croak("panic: sv_insert");
2581 if (mid - big > bigend - midend) { /* faster to shorten from end */
2583 Move(little, mid, littlelen,char);
2586 i = bigend - midend;
2588 Move(midend, mid, i,char);
2592 SvCUR_set(bigstr, mid - big);
2595 else if (i = mid - big) { /* faster from front */
2596 midend -= littlelen;
2598 sv_chop(bigstr,midend-i);
2603 Move(little, mid, littlelen,char);
2605 else if (littlelen) {
2606 midend -= littlelen;
2607 sv_chop(bigstr,midend);
2608 Move(little,midend,littlelen,char);
2611 sv_chop(bigstr,midend);
2616 /* make sv point to what nstr did */
2623 U32 refcnt = SvREFCNT(sv);
2624 if (SvTHINKFIRST(sv)) {
2625 if (SvREADONLY(sv) && curcop != &compiling)
2630 if (SvREFCNT(nsv) != 1)
2631 warn("Reference miscount in sv_replace()");
2632 if (SvMAGICAL(sv)) {
2636 sv_upgrade(nsv, SVt_PVMG);
2637 SvMAGIC(nsv) = SvMAGIC(sv);
2638 SvFLAGS(nsv) |= SvMAGICAL(sv);
2644 assert(!SvREFCNT(sv));
2645 StructCopy(nsv,sv,SV);
2646 SvREFCNT(sv) = refcnt;
2647 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2656 assert(SvREFCNT(sv) == 0);
2659 if (defstash) { /* Still have a symbol table? */
2664 SAVEFREESV(SvSTASH(sv));
2666 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2671 sv_upgrade(&ref, SVt_RV);
2672 SvRV(&ref) = SvREFCNT_inc(sv);
2674 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2675 creating+destructing a ref
2676 leads to disaster. */
2682 perl_call_sv((SV*)GvCV(destructor),
2683 G_DISCARD|G_EVAL|G_KEEPERR);
2684 del_XRV(SvANY(&ref));
2691 SvREFCNT_dec(SvSTASH(sv));
2693 SvOBJECT_off(sv); /* Curse the object. */
2694 if (SvTYPE(sv) != SVt_PVIO)
2695 --sv_objcount; /* XXX Might want something more general */
2700 && (ret = perl_get_sv("DB::ret", FALSE))
2701 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2702 /* Debugger is prone to dangling references. */
2709 croak("DESTROY created new reference to dead object");
2710 /* DESTROY gave object new lease on life */
2715 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2717 switch (SvTYPE(sv)) {
2719 if (IoIFP(sv) != PerlIO_stdin() &&
2720 IoIFP(sv) != PerlIO_stdout() &&
2721 IoIFP(sv) != PerlIO_stderr())
2723 Safefree(IoTOP_NAME(sv));
2724 Safefree(IoFMT_NAME(sv));
2725 Safefree(IoBOTTOM_NAME(sv));
2741 Safefree(GvNAME(sv));
2748 (void)SvOOK_off(sv);
2753 SvREFCNT_dec(SvRV(sv));
2754 else if (SvPVX(sv) && SvLEN(sv))
2755 Safefree(SvPVX(sv));
2765 switch (SvTYPE(sv)) {
2781 del_XPVIV(SvANY(sv));
2784 del_XPVNV(SvANY(sv));
2787 del_XPVMG(SvANY(sv));
2790 del_XPVLV(SvANY(sv));
2793 del_XPVAV(SvANY(sv));
2796 del_XPVHV(SvANY(sv));
2799 del_XPVCV(SvANY(sv));
2802 del_XPVGV(SvANY(sv));
2805 del_XPVBM(SvANY(sv));
2808 del_XPVFM(SvANY(sv));
2811 del_XPVIO(SvANY(sv));
2814 SvFLAGS(sv) &= SVf_BREAK;
2815 SvFLAGS(sv) |= SVTYPEMASK;
2833 if (SvREADONLY(sv)) {
2834 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2837 if (SvREFCNT(sv) == 0) {
2838 if (SvFLAGS(sv) & SVf_BREAK)
2840 if (in_clean_all) /* All is fair */
2842 warn("Attempt to free unreferenced scalar");
2845 if (--SvREFCNT(sv) > 0)
2849 warn("Attempt to free temp prematurely");
2871 junk = SvPV(sv, len);
2890 pv1 = SvPV(str1, cur1);
2895 pv2 = SvPV(str2, cur2);
2900 return memEQ(pv1, pv2, cur1);
2909 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2911 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2915 return cur2 ? -1 : 0;
2920 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2923 return retval < 0 ? -1 : 1;
2928 return cur1 < cur2 ? -1 : 1;
2932 sv_cmp_locale(sv1, sv2)
2936 #ifdef USE_LOCALE_COLLATE
2942 if (collation_standard)
2946 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2948 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2950 if (!pv1 || !len1) {
2961 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2964 return retval < 0 ? -1 : 1;
2967 * When the result of collation is equality, that doesn't mean
2968 * that there are no differences -- some locales exclude some
2969 * characters from consideration. So to avoid false equalities,
2970 * we use the raw string as a tiebreaker.
2976 #endif /* USE_LOCALE_COLLATE */
2978 return sv_cmp(sv1, sv2);
2981 #ifdef USE_LOCALE_COLLATE
2983 * Any scalar variable may carry an 'o' magic that contains the
2984 * scalar data of the variable transformed to such a format that
2985 * a normal memory comparison can be used to compare the data
2986 * according to the locale settings.
2989 sv_collxfrm(sv, nxp)
2995 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
2996 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3001 Safefree(mg->mg_ptr);
3003 if ((xf = mem_collxfrm(s, len, &xlen))) {
3004 if (SvREADONLY(sv)) {
3010 sv_magic(sv, 0, 'o', 0, 0);
3011 mg = mg_find(sv, 'o');
3024 if (mg && mg->mg_ptr) {
3026 return mg->mg_ptr + sizeof(collation_ix);
3034 #endif /* USE_LOCALE_COLLATE */
3037 sv_gets(sv,fp,append)
3039 register PerlIO *fp;
3044 register STDCHAR rslast;
3045 register STDCHAR *bp;
3049 if (SvTHINKFIRST(sv)) {
3050 if (SvREADONLY(sv) && curcop != &compiling)
3055 if (!SvUPGRADE(sv, SVt_PV))
3063 else if (RsPARA(rs)) {
3068 rsptr = SvPV(rs, rslen);
3069 rslast = rslen ? rsptr[rslen - 1] : '\0';
3071 if (RsPARA(rs)) { /* have to do this both before and after */
3072 do { /* to make sure file boundaries work right */
3075 i = PerlIO_getc(fp);
3079 PerlIO_ungetc(fp,i);
3085 /* See if we know enough about I/O mechanism to cheat it ! */
3087 /* This used to be #ifdef test - it is made run-time test for ease
3088 of abstracting out stdio interface. One call should be cheap
3089 enough here - and may even be a macro allowing compile
3093 if (PerlIO_fast_gets(fp)) {
3096 * We're going to steal some values from the stdio struct
3097 * and put EVERYTHING in the innermost loop into registers.
3099 register STDCHAR *ptr;
3103 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3104 /* An ungetc()d char is handled separately from the regular
3105 * buffer, so we getc() it back out and stuff it in the buffer.
3107 i = PerlIO_getc(fp);
3108 if (i == EOF) return 0;
3109 *(--((*fp)->_ptr)) = (unsigned char) i;
3113 /* Here is some breathtakingly efficient cheating */
3115 cnt = PerlIO_get_cnt(fp); /* get count into register */
3116 (void)SvPOK_only(sv); /* validate pointer */
3117 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3118 if (cnt > 80 && SvLEN(sv) > append) {
3119 shortbuffered = cnt - SvLEN(sv) + append + 1;
3120 cnt -= shortbuffered;
3124 /* remember that cnt can be negative */
3125 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3130 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3131 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3132 DEBUG_P(PerlIO_printf(Perl_debug_log,
3133 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3134 DEBUG_P(PerlIO_printf(Perl_debug_log,
3135 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3136 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3137 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3142 while (cnt > 0) { /* this | eat */
3144 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3145 goto thats_all_folks; /* screams | sed :-) */
3149 Copy(ptr, bp, cnt, char); /* this | eat */
3150 bp += cnt; /* screams | dust */
3151 ptr += cnt; /* louder | sed :-) */
3156 if (shortbuffered) { /* oh well, must extend */
3157 cnt = shortbuffered;
3159 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3161 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3162 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3166 DEBUG_P(PerlIO_printf(Perl_debug_log,
3167 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3168 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3169 DEBUG_P(PerlIO_printf(Perl_debug_log,
3170 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3171 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3172 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3173 /* This used to call 'filbuf' in stdio form, but as that behaves like
3174 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3175 another abstraction. */
3176 i = PerlIO_getc(fp); /* get more characters */
3177 DEBUG_P(PerlIO_printf(Perl_debug_log,
3178 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3179 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3180 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3181 cnt = PerlIO_get_cnt(fp);
3182 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3183 DEBUG_P(PerlIO_printf(Perl_debug_log,
3184 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3186 if (i == EOF) /* all done for ever? */
3187 goto thats_really_all_folks;
3189 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3191 SvGROW(sv, bpx + cnt + 2);
3192 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3194 *bp++ = i; /* store character from PerlIO_getc */
3196 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3197 goto thats_all_folks;
3201 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3202 memNE((char*)bp - rslen, rsptr, rslen))
3203 goto screamer; /* go back to the fray */
3204 thats_really_all_folks:
3206 cnt += shortbuffered;
3207 DEBUG_P(PerlIO_printf(Perl_debug_log,
3208 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3209 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3210 DEBUG_P(PerlIO_printf(Perl_debug_log,
3211 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3212 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3213 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3215 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3216 DEBUG_P(PerlIO_printf(Perl_debug_log,
3217 "Screamer: done, len=%d, string=|%.*s|\n",
3218 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3222 /*The big, slow, and stupid way */
3227 register STDCHAR *bpe = buf + sizeof(buf);
3229 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3230 ; /* keep reading */
3234 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3235 /* Accomodate broken VAXC compiler, which applies U8 cast to
3236 * both args of ?: operator, causing EOF to change into 255
3238 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3242 sv_catpvn(sv, (char *) buf, cnt);
3244 sv_setpvn(sv, (char *) buf, cnt);
3246 if (i != EOF && /* joy */
3248 SvCUR(sv) < rslen ||
3249 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3256 if (RsPARA(rs)) { /* have to do this both before and after */
3257 while (i != EOF) { /* to make sure file boundaries work right */
3258 i = PerlIO_getc(fp);
3260 PerlIO_ungetc(fp,i);
3266 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3279 if (SvTHINKFIRST(sv)) {
3280 if (SvREADONLY(sv) && curcop != &compiling)
3284 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3285 #endif /* OVERLOAD */
3291 flags = SvFLAGS(sv);
3292 if (flags & SVp_NOK) {
3293 (void)SvNOK_only(sv);
3297 if (flags & SVp_IOK) {
3298 if (SvIVX(sv) == IV_MAX)
3299 sv_setnv(sv, (double)IV_MAX + 1.0);
3301 (void)SvIOK_only(sv);
3306 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3307 if ((flags & SVTYPEMASK) < SVt_PVNV)
3308 sv_upgrade(sv, SVt_NV);
3310 (void)SvNOK_only(sv);
3314 while (isALPHA(*d)) d++;
3315 while (isDIGIT(*d)) d++;
3317 SET_NUMERIC_STANDARD();
3318 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3322 while (d >= SvPVX(sv)) {
3332 *(d--) -= 'z' - 'a' + 1;
3335 /* oh,oh, the number grew */
3336 SvGROW(sv, SvCUR(sv) + 2);
3338 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3354 if (SvTHINKFIRST(sv)) {
3355 if (SvREADONLY(sv) && curcop != &compiling)
3359 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3360 #endif /* OVERLOAD */
3366 flags = SvFLAGS(sv);
3367 if (flags & SVp_NOK) {
3369 (void)SvNOK_only(sv);
3372 if (flags & SVp_IOK) {
3373 if (SvIVX(sv) == IV_MIN)
3374 sv_setnv(sv, (double)IV_MIN - 1.0);
3376 (void)SvIOK_only(sv);
3381 if (!(flags & SVp_POK)) {
3382 if ((flags & SVTYPEMASK) < SVt_PVNV)
3383 sv_upgrade(sv, SVt_NV);
3385 (void)SvNOK_only(sv);
3388 SET_NUMERIC_STANDARD();
3389 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3392 /* Make a string that will exist for the duration of the expression
3393 * evaluation. Actually, it may have to last longer than that, but
3394 * hopefully we won't free it until it has been assigned to a
3395 * permanent location. */
3400 tmps_max += (tmps_max < 512) ? 128 : 512;
3401 Renew(tmps_stack, tmps_max, SV*);
3405 sv_mortalcopy(oldstr)
3414 sv_setsv(sv,oldstr);
3415 if (++tmps_ix >= tmps_max)
3417 tmps_stack[tmps_ix] = sv;
3430 SvFLAGS(sv) = SVs_TEMP;
3431 if (++tmps_ix >= tmps_max)
3433 tmps_stack[tmps_ix] = sv;
3437 /* same thing without the copying */
3445 if (SvREADONLY(sv) && curcop != &compiling)
3447 if (++tmps_ix >= tmps_max)
3449 tmps_stack[tmps_ix] = sv;
3467 sv_setpvn(sv,s,len);
3473 newSVpvf(const char* pat, ...)
3477 newSVpvf(pat, va_alist)
3490 va_start(args, pat);
3494 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3538 sv_upgrade(sv, SVt_RV);
3540 SvRV(sv) = SvREFCNT_inc(ref);
3556 #endif /* CRIPPLED_CC */
3558 /* make an exact duplicate of old */
3568 if (SvTYPE(old) == SVTYPEMASK) {
3569 warn("semi-panic: attempt to dup freed string");
3599 if (!*s) { /* reset ?? searches */
3600 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3601 pm->op_pmflags &= ~PMf_USED;
3606 /* reset variables */
3608 if (!HvARRAY(stash))
3611 Zero(todo, 256, char);
3618 for ( ; i <= max; i++) {
3621 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3622 for (entry = HvARRAY(stash)[i];
3624 entry = HeNEXT(entry)) {
3625 if (!todo[(U8)*HeKEY(entry)])
3627 gv = (GV*)HeVAL(entry);
3630 if (SvTYPE(sv) >= SVt_PV) {
3632 if (SvPVX(sv) != Nullch)
3639 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3641 #ifndef VMS /* VMS has no environ array */
3643 environ[0] = Nullch;
3658 switch (SvTYPE(sv)) {
3666 croak("Bad filehandle: %s", GvNAME(gv));
3670 croak(no_usym, "filehandle");
3672 return sv_2io(SvRV(sv));
3673 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3679 croak("Bad filehandle: %s", SvPV(sv,na));
3686 sv_2cv(sv, st, gvp, lref)
3696 return *gvp = Nullgv, Nullcv;
3697 switch (SvTYPE(sv)) {
3717 if (SvTYPE(cv) != SVt_PVCV)
3718 croak("Not a subroutine reference");
3726 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3732 if (lref && !GvCVu(gv)) {
3735 tmpsv = NEWSV(704,0);
3736 gv_efullname3(tmpsv, gv, Nullch);
3737 newSUB(start_subparse(FALSE, 0),
3738 newSVOP(OP_CONST, 0, tmpsv),
3743 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3760 if ((Xpv = (XPV*)SvANY(sv)) &&
3761 (*Xpv->xpv_pv > '0' ||
3763 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3770 return SvIVX(sv) != 0;
3773 return SvNVX(sv) != 0.0;
3775 return sv_2bool(sv);
3779 #endif /* !SvTRUE */
3824 return sv_2pv(sv, lp);
3829 sv_pvn_force(sv, lp)
3835 if (SvREADONLY(sv) && curcop != &compiling)
3842 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3843 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3849 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3850 op_name[op->op_type]);
3854 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3859 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3860 SvGROW(sv, len + 1);
3861 Move(s,SvPVX(sv),len,char);
3866 SvPOK_on(sv); /* validate pointer */
3868 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3869 (unsigned long)sv,SvPVX(sv)));
3880 if (ob && SvOBJECT(sv))
3881 return HvNAME(SvSTASH(sv));
3883 switch (SvTYPE(sv)) {
3897 case SVt_PVLV: return "LVALUE";
3898 case SVt_PVAV: return "ARRAY";
3899 case SVt_PVHV: return "HASH";
3900 case SVt_PVCV: return "CODE";
3901 case SVt_PVGV: return "GLOB";
3902 case SVt_PVFM: return "FORMLINE";
3903 default: return "UNKNOWN";
3939 return strEQ(HvNAME(SvSTASH(sv)), name);
3943 newSVrv(rv, classname)
3953 sv_upgrade(rv, SVt_RV);
3954 SvRV(rv) = SvREFCNT_inc(sv);
3958 HV* stash = gv_stashpv(classname, TRUE);
3959 (void)sv_bless(rv, stash);
3965 sv_setref_pv(rv, classname, pv)
3971 sv_setsv(rv, &sv_undef);
3973 sv_setiv(newSVrv(rv,classname), (IV)pv);
3978 sv_setref_iv(rv, classname, iv)
3983 sv_setiv(newSVrv(rv,classname), iv);
3988 sv_setref_nv(rv, classname, nv)
3993 sv_setnv(newSVrv(rv,classname), nv);
3998 sv_setref_pvn(rv, classname, pv, n)
4004 sv_setpvn(newSVrv(rv,classname), pv, n);
4015 croak("Can't bless non-reference value");
4017 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4018 if (SvREADONLY(ref))
4020 if (SvOBJECT(ref)) {
4021 if (SvTYPE(ref) != SVt_PVIO)
4023 SvREFCNT_dec(SvSTASH(ref));
4027 if (SvTYPE(ref) != SVt_PVIO)
4029 (void)SvUPGRADE(ref, SVt_PVMG);
4030 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4037 #endif /* OVERLOAD */
4046 assert(SvTYPE(sv) == SVt_PVGV);
4050 sv_unmagic(sv, '*');
4051 Safefree(GvNAME(sv));
4053 SvFLAGS(sv) &= ~SVTYPEMASK;
4054 SvFLAGS(sv) |= SVt_PVMG;
4065 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4068 sv_2mortal(rv); /* Schedule for freeing later */
4075 sv_magic((sv), Nullsv, 't', Nullch, 0);
4082 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4083 MAGIC *mg = mg_find(sv, 't');
4093 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4094 MAGIC *mg = mg_find(sv, 't');
4095 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4103 sv_setpvf(SV *sv, const char* pat, ...)
4107 sv_setpvf(sv, pat, va_alist)
4115 va_start(args, pat);
4119 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4125 sv_catpvf(SV *sv, const char* pat, ...)
4129 sv_catpvf(sv, pat, va_alist)
4137 va_start(args, pat);
4141 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4146 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4155 sv_setpvn(sv, "", 0);
4156 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4160 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4174 static char nullstr[] = "(null)";
4176 /* no matter what, this is a string now */
4177 (void)SvPV_force(sv, origlen);
4179 /* special-case "", "%s", and "%_" */
4182 if (patlen == 2 && pat[0] == '%') {
4186 char *s = va_arg(*args, char*);
4187 sv_catpv(sv, s ? s : nullstr);
4189 else if (svix < svmax)
4190 sv_catsv(sv, *svargs);
4194 sv_catsv(sv, va_arg(*args, SV*));
4197 /* See comment on '_' below */
4202 patend = (char*)pat + patlen;
4203 for (p = (char*)pat; p < patend; p = q) {
4211 bool has_precis = FALSE;
4215 STRLEN esignlen = 0;
4217 char *eptr = Nullch;
4219 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4221 static char *efloatbuf = Nullch;
4222 static STRLEN efloatsize = 0;
4234 for (q = p; q < patend && *q != '%'; ++q) ;
4236 sv_catpvn(sv, p, q - p);
4274 case '1': case '2': case '3':
4275 case '4': case '5': case '6':
4276 case '7': case '8': case '9':
4279 width = width * 10 + (*q++ - '0');
4284 i = va_arg(*args, int);
4286 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4288 width = (i < 0) ? -i : i;
4299 i = va_arg(*args, int);
4301 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4302 precis = (i < 0) ? 0 : i;
4308 precis = precis * 10 + (*q++ - '0');
4317 #if 0 /* when quads have better support within Perl */
4318 if (*(q + 1) == 'l') {
4344 c = va_arg(*args, int);
4346 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4353 eptr = va_arg(*args, char*);
4355 elen = strlen(eptr);
4358 elen = sizeof nullstr - 1;
4361 else if (svix < svmax)
4362 eptr = SvPVx(svargs[svix++], elen);
4367 * The "%_" hack might have to be changed someday,
4368 * if ISO or ANSI decide to use '_' for something.
4369 * So we keep it hidden from users' code.
4373 eptr = SvPVx(va_arg(*args, SV*), elen);
4376 if (has_precis && elen > precis)
4384 uv = (UV)va_arg(*args, void*);
4386 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4397 case 'h': iv = (short)va_arg(*args, int); break;
4398 default: iv = va_arg(*args, int); break;
4399 case 'l': iv = va_arg(*args, long); break;
4400 case 'V': iv = va_arg(*args, IV); break;
4404 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4406 case 'h': iv = (short)iv; break;
4407 default: iv = (int)iv; break;
4408 case 'l': iv = (long)iv; break;
4415 esignbuf[esignlen++] = plus;
4419 esignbuf[esignlen++] = '-';
4445 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4446 default: uv = va_arg(*args, unsigned); break;
4447 case 'l': uv = va_arg(*args, unsigned long); break;
4448 case 'V': uv = va_arg(*args, UV); break;
4452 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4454 case 'h': uv = (unsigned short)uv; break;
4455 default: uv = (unsigned)uv; break;
4456 case 'l': uv = (unsigned long)uv; break;
4462 eptr = ebuf + sizeof ebuf;
4466 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4472 esignbuf[esignlen++] = '0';
4473 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4479 *--eptr = '0' + dig;
4481 if (alt && *eptr != '0')
4484 default: /* it had better be ten or less */
4487 *--eptr = '0' + dig;
4488 } while (uv /= base);
4491 elen = (ebuf + sizeof ebuf) - eptr;
4492 if (has_precis && precis > elen)
4493 zeros = precis - elen;
4496 /* FLOATING POINT */
4499 c = 'f'; /* maybe %F isn't supported here */
4505 /* This is evil, but floating point is even more evil */
4508 nv = va_arg(*args, double);
4510 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4513 if (c != 'e' && c != 'E') {
4515 (void)frexp(nv, &i);
4516 if (i == PERL_INT_MIN)
4517 die("panic: frexp");
4519 need = BIT_DIGITS(i);
4521 need += has_precis ? precis : 6; /* known default */
4525 need += 20; /* fudge factor */
4526 if (efloatsize < need) {
4527 Safefree(efloatbuf);
4528 efloatsize = need + 20; /* more fudge */
4529 New(906, efloatbuf, efloatsize, char);
4532 eptr = ebuf + sizeof ebuf;
4537 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4542 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4552 (void)sprintf(efloatbuf, eptr, nv);
4555 elen = strlen(efloatbuf);
4559 * User-defined locales may include arbitrary characters.
4560 * And, unfortunately, some system may alloc the "C" locale
4561 * to be overridden by a malicious user.
4564 *used_locale = TRUE;
4565 #endif /* LC_NUMERIC */
4572 i = SvCUR(sv) - origlen;
4575 case 'h': *(va_arg(*args, short*)) = i; break;
4576 default: *(va_arg(*args, int*)) = i; break;
4577 case 'l': *(va_arg(*args, long*)) = i; break;
4578 case 'V': *(va_arg(*args, IV*)) = i; break;
4581 else if (svix < svmax)
4582 sv_setuv(svargs[svix++], (UV)i);
4583 continue; /* not "break" */
4589 if (!args && dowarn &&
4590 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4591 SV *msg = sv_newmortal();
4592 sv_setpvf(msg, "Invalid conversion in %s: ",
4593 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4595 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4598 sv_catpv(msg, "end of string");
4599 warn("%_", msg); /* yes, this is reentrant */
4601 /* output mangled stuff */
4607 have = esignlen + zeros + elen;
4608 need = (have > width ? have : width);
4611 SvGROW(sv, SvLEN(sv) + need);
4613 if (esignlen && fill == '0') {
4614 for (i = 0; i < esignlen; i++)
4618 memset(p, fill, gap);
4621 if (esignlen && fill != '0') {
4622 for (i = 0; i < esignlen; i++)
4626 for (i = zeros; i; i--)
4630 memcpy(p, eptr, elen);
4634 memset(p, ' ', gap);
4638 SvCUR(sv) = p - SvPVX(sv);
4647 SV *d = sv_newmortal();
4653 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4657 flags = SvFLAGS(sv);
4660 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4661 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4662 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4663 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4664 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4665 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4666 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4667 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4668 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4669 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4671 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4672 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4673 if (flags & SVf_POK) sv_catpv(d, "POK,");
4674 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4675 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4676 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4677 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4680 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4681 #endif /* OVERLOAD */
4682 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4683 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4684 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4685 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4690 if (CvANON(sv)) sv_catpv(d, "ANON,");
4691 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4692 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4693 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4694 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4697 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4698 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4701 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4702 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4703 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4704 if (GvIMPORTED(sv)) {
4705 sv_catpv(d, "IMPORT");
4706 if (GvIMPORTED(sv) == GVf_IMPORTED)
4707 sv_catpv(d, "ALL,");
4710 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4711 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4712 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4713 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4719 if (*(SvEND(d) - 1) == ',')
4720 SvPVX(d)[--SvCUR(d)] = '\0';
4724 PerlIO_printf(Perl_debug_log, "SV = ");
4727 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4730 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4733 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4736 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4739 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4742 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4745 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4748 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4751 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4754 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4757 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4760 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4763 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4766 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4769 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4772 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4775 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4778 if (type >= SVt_PVIV || type == SVt_IV)
4779 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4780 if (type >= SVt_PVNV || type == SVt_NV) {
4781 SET_NUMERIC_STANDARD();
4782 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4785 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4791 if (type <= SVt_PVLV) {
4793 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4794 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4796 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4798 if (type >= SVt_PVMG) {
4800 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4803 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4807 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4808 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4809 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4810 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4811 sv_dump(LvTARG(sv));
4814 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4815 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4816 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4817 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4818 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4819 flags = AvFLAGS(sv);
4821 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4822 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4823 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4824 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4825 SvCUR(d) ? SvPVX(d) + 1 : "");
4828 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4829 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4830 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4831 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4832 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4833 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4835 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4837 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4841 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4844 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4845 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4846 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4847 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4848 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4849 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4850 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4851 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4853 PerlIO_printf(Perl_debug_log, "\n");
4855 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4856 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4857 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4858 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4859 if (type == SVt_PVFM)
4860 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4863 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4864 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4865 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4866 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4867 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4868 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4869 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4870 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4871 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4872 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4873 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4874 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4875 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4876 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4877 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4878 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4881 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4882 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4883 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4884 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4885 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4886 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4887 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4888 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4889 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4890 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4891 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4892 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4893 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4894 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4895 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4896 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));