3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "I wonder what the Entish is for 'yes' and 'no'," he thought.
18 /* Use an overridden DBL_DIG */
22 # define DBL_DIG OVR_DBL_DIG
24 /* The following is all to get DBL_DIG, in order to pick a nice
25 default value for printing floating point numbers in Gconvert.
35 #define DBL_DIG 15 /* A guess that works lots of places */
39 #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) && !defined(__QNX__)
43 static IV asIV _((SV* sv));
44 static UV asUV _((SV* sv));
45 static SV *more_sv _((void));
46 static XPVIV *more_xiv _((void));
47 static XPVNV *more_xnv _((void));
48 static XPV *more_xpv _((void));
49 static XRV *more_xrv _((void));
50 static XPVIV *new_xiv _((void));
51 static XPVNV *new_xnv _((void));
52 static XPV *new_xpv _((void));
53 static XRV *new_xrv _((void));
54 static void del_xiv _((XPVIV* p));
55 static void del_xnv _((XPVNV* p));
56 static void del_xpv _((XPV* p));
57 static void del_xrv _((XRV* p));
58 static void sv_mortalgrow _((void));
59 static void sv_unglob _((SV* sv));
61 typedef void (*SVFUNC) _((SV*));
67 (p) = (SV*)safemalloc(sizeof(SV)); \
80 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
82 #define REG_REPLACE(sv,a,b) \
84 void* p = sv->sv_any; \
85 I32 h = REGHASH(sv, regsize); \
87 while (registry[i] != (a)) { \
91 die("SV registry bug"); \
96 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
97 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
103 if (sv_count >= (regsize >> 1))
105 SV **oldreg = registry;
106 I32 oldsize = regsize;
108 regsize = regsize ? ((regsize << 2) + 1) : 2037;
109 registry = (SV**)safemalloc(regsize * sizeof(SV*));
110 memzero(registry, regsize * sizeof(SV*));
115 for (i = 0; i < oldsize; ++i) {
116 SV* oldsv = oldreg[i];
142 for (i = 0; i < regsize; ++i) {
143 SV* sv = registry[i];
150 sv_add_arena(ptr, size, flags)
155 if (!(flags & SVf_FAKE))
162 * "A time to plant, and a time to uproot what was planted..."
165 #define plant_SV(p) \
167 SvANY(p) = (void *)sv_root; \
168 SvFLAGS(p) = SVTYPEMASK; \
173 #define uproot_SV(p) \
175 MUTEX_LOCK(&sv_mutex); \
177 sv_root = (SV*)SvANY(p); \
179 MUTEX_UNLOCK(&sv_mutex); \
205 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
207 svend = &sva[SvREFCNT(sva)];
208 if (p >= sv && p < svend)
212 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
219 #else /* ! DEBUGGING */
221 #define del_SV(p) plant_SV(p)
223 #endif /* DEBUGGING */
226 sv_add_arena(ptr, size, flags)
234 Zero(sva, size, char);
236 /* The first SV in an arena isn't an SV. */
237 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
238 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
239 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
244 svend = &sva[SvREFCNT(sva) - 1];
247 SvANY(sv) = (void *)(SV*)(sv + 1);
248 SvFLAGS(sv) = SVTYPEMASK;
252 SvFLAGS(sv) = SVTYPEMASK;
261 sv_add_arena(nice_chunk, nice_chunk_size, 0);
265 char *chunk; /* must use New here to match call to */
266 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
267 sv_add_arena(chunk, 1008, 0);
281 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
282 svend = &sva[SvREFCNT(sva)];
283 for (sv = sva + 1; sv < svend; ++sv) {
284 if (SvTYPE(sv) != SVTYPEMASK)
296 if (SvTYPE(sv) != SVTYPEMASK) {
297 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
298 PerlIO_printf(PerlIO_stderr(), "****\n");
306 visit(do_report_used);
315 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
316 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
322 /* XXX Might want to check arrays, etc. */
325 #ifndef DISABLE_DESTRUCTOR_KLUDGE
327 do_clean_named_objs(sv)
330 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
331 do_clean_objs(GvSV(sv));
335 static bool in_clean_objs = FALSE;
340 in_clean_objs = TRUE;
341 #ifndef DISABLE_DESTRUCTOR_KLUDGE
342 visit(do_clean_named_objs);
344 visit(do_clean_objs);
345 in_clean_objs = FALSE;
352 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
353 SvFLAGS(sv) |= SVf_BREAK;
357 static bool in_clean_all = FALSE;
364 in_clean_all = FALSE;
373 /* Free arenas here, but be careful about fake ones. (We assume
374 contiguity of the fake ones with the corresponding real ones.) */
376 for (sva = sv_arenaroot; sva; sva = svanext) {
377 svanext = (SV*) SvANY(sva);
378 while (svanext && SvFAKE(svanext))
379 svanext = (SV*) SvANY(svanext);
382 Safefree((void *)sva);
396 * See comment in more_xiv() -- RAM.
398 xiv_root = (IV**)*xiv;
399 return (XPVIV*)((char*)xiv - sizeof(XPV));
408 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
409 *xiv = (IV *)xiv_root;
417 register IV** xivend;
418 XPV* ptr = (XPV*)safemalloc(1008);
419 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
420 xiv_arenaroot = ptr; /* to keep Purify happy */
423 xivend = &xiv[1008 / sizeof(IV *) - 1];
424 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
426 while (xiv < xivend) {
427 *xiv = (IV *)(xiv + 1);
440 xnv_root = *(double**)xnv;
441 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
450 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
451 *(double**)xnv = xnv_root;
458 register double* xnv;
459 register double* xnvend;
460 xnv = (double*)safemalloc(1008);
461 xnvend = &xnv[1008 / sizeof(double) - 1];
462 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
464 while (xnv < xnvend) {
465 *(double**)xnv = (double*)(xnv + 1);
478 xrv_root = (XRV*)xrv->xrv_rv;
488 p->xrv_rv = (SV*)xrv_root;
496 register XRV* xrvend;
497 xrv_root = (XRV*)safemalloc(1008);
499 xrvend = &xrv[1008 / sizeof(XRV) - 1];
500 while (xrv < xrvend) {
501 xrv->xrv_rv = (SV*)(xrv + 1);
514 xpv_root = (XPV*)xpv->xpv_pv;
524 p->xpv_pv = (char*)xpv_root;
532 register XPV* xpvend;
533 xpv_root = (XPV*)safemalloc(1008);
535 xpvend = &xpv[1008 / sizeof(XPV) - 1];
536 while (xpv < xpvend) {
537 xpv->xpv_pv = (char*)(xpv + 1);
545 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
546 #define del_XIV(p) free((char*)p)
548 #define new_XIV() (void*)new_xiv()
549 #define del_XIV(p) del_xiv(p)
553 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
554 #define del_XNV(p) free((char*)p)
556 #define new_XNV() (void*)new_xnv()
557 #define del_XNV(p) del_xnv(p)
561 #define new_XRV() (void*)safemalloc(sizeof(XRV))
562 #define del_XRV(p) free((char*)p)
564 #define new_XRV() (void*)new_xrv()
565 #define del_XRV(p) del_xrv(p)
569 #define new_XPV() (void*)safemalloc(sizeof(XPV))
570 #define del_XPV(p) free((char*)p)
572 #define new_XPV() (void*)new_xpv()
573 #define del_XPV(p) del_xpv(p)
576 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
577 #define del_XPVIV(p) free((char*)p)
579 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
580 #define del_XPVNV(p) free((char*)p)
582 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
583 #define del_XPVMG(p) free((char*)p)
585 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
586 #define del_XPVLV(p) free((char*)p)
588 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
589 #define del_XPVAV(p) free((char*)p)
591 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
592 #define del_XPVHV(p) free((char*)p)
594 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
595 #define del_XPVCV(p) free((char*)p)
597 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
598 #define del_XPVGV(p) free((char*)p)
600 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
601 #define del_XPVBM(p) free((char*)p)
603 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
604 #define del_XPVFM(p) free((char*)p)
606 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
607 #define del_XPVIO(p) free((char*)p)
622 if (SvTYPE(sv) == mt)
628 switch (SvTYPE(sv)) {
643 nv = (double)SvIVX(sv);
649 else if (mt < SVt_PVIV)
666 pv = (char*)SvRV(sv);
670 nv = (double)(unsigned long)pv;
686 else if (mt == SVt_NV)
697 del_XPVIV(SvANY(sv));
707 del_XPVNV(SvANY(sv));
717 del_XPVMG(SvANY(sv));
720 croak("Can't upgrade that kind of scalar");
725 croak("Can't upgrade to undef");
727 SvANY(sv) = new_XIV();
731 SvANY(sv) = new_XNV();
735 SvANY(sv) = new_XRV();
739 SvANY(sv) = new_XPV();
745 SvANY(sv) = new_XPVIV();
755 SvANY(sv) = new_XPVNV();
763 SvANY(sv) = new_XPVMG();
773 SvANY(sv) = new_XPVLV();
787 SvANY(sv) = new_XPVAV();
802 SvANY(sv) = new_XPVHV();
818 SvANY(sv) = new_XPVCV();
819 Zero(SvANY(sv), 1, XPVCV);
829 SvANY(sv) = new_XPVGV();
844 SvANY(sv) = new_XPVBM();
857 SvANY(sv) = new_XPVFM();
858 Zero(SvANY(sv), 1, XPVFM);
868 SvANY(sv) = new_XPVIO();
869 Zero(SvANY(sv), 1, XPVIO);
880 SvFLAGS(sv) &= ~SVTYPEMASK;
890 SV *t = sv_newmortal();
899 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
903 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
904 if (sv == &sv_undef) {
905 sv_catpv(t, "SV_UNDEF");
906 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
907 SVs_GMG|SVs_SMG|SVs_RMG)) &&
911 else if (sv == &sv_no) {
912 sv_catpv(t, "SV_NO");
913 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
914 SVs_GMG|SVs_SMG|SVs_RMG)) &&
915 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
922 sv_catpv(t, "SV_YES");
923 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
924 SVs_GMG|SVs_SMG|SVs_RMG)) &&
925 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
928 SvPVX(sv) && *SvPVX(sv) == '1' &&
934 else if (SvREFCNT(sv) == 0) {
940 if (SvCUR(t) + unref > 10) {
941 SvCUR(t) = unref + 3;
949 switch (SvTYPE(sv)) {
951 sv_catpv(t, "FREED");
955 sv_catpv(t, "UNDEF");
989 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1009 sv_catpv(t, "(null)");
1011 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1013 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1015 else if (SvNOKp(sv)) {
1016 SET_NUMERIC_STANDARD();
1017 sv_catpvf(t, "(%g)",SvNVX(sv));
1019 else if (SvIOKp(sv))
1020 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1039 char *s = SvPVX(sv);
1040 SvLEN(sv) += SvIVX(sv);
1041 SvPVX(sv) -= SvIVX(sv);
1043 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1045 SvFLAGS(sv) &= ~SVf_OOK;
1053 register I32 newlen;
1055 unsigned long newlen;
1060 #ifdef HAS_64K_LIMIT
1061 if (newlen >= 0x10000) {
1062 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1065 #endif /* HAS_64K_LIMIT */
1068 if (SvTYPE(sv) < SVt_PV) {
1069 sv_upgrade(sv, SVt_PV);
1072 else if (SvOOK(sv)) { /* pv is offset? */
1075 if (newlen > SvLEN(sv))
1076 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1080 if (newlen > SvLEN(sv)) { /* need more room? */
1082 Renew(s,newlen,char);
1084 New(703,s,newlen,char);
1086 SvLEN_set(sv, newlen);
1096 if (SvTHINKFIRST(sv)) {
1097 if (SvREADONLY(sv) && curcop != &compiling)
1102 switch (SvTYPE(sv)) {
1104 sv_upgrade(sv, SVt_IV);
1107 sv_upgrade(sv, SVt_PVNV);
1111 sv_upgrade(sv, SVt_PVIV);
1127 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1128 op_desc[op->op_type]);
1131 (void)SvIOK_only(sv); /* validate number */
1144 sv_setnv(sv, (double)u);
1152 if (SvTHINKFIRST(sv)) {
1153 if (SvREADONLY(sv) && curcop != &compiling)
1158 switch (SvTYPE(sv)) {
1161 sv_upgrade(sv, SVt_NV);
1167 sv_upgrade(sv, SVt_PVNV);
1174 (void)SvOOK_off(sv);
1189 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1190 op_name[op->op_type]);
1194 (void)SvNOK_only(sv); /* validate number */
1206 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1207 /* each *s can expand to 4 chars + "...\0",
1208 i.e. need room for 8 chars */
1210 for (s = SvPVX(sv); *s && d < limit; s++) {
1212 if (ch & 128 && !isPRINT_LC(ch)) {
1221 else if (ch == '\r') {
1225 else if (ch == '\f') {
1229 else if (ch == '\\') {
1233 else if (isPRINT_LC(ch))
1248 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1249 op_name[op->op_type]);
1251 warn("Argument \"%s\" isn't numeric", tmpbuf);
1260 if (SvGMAGICAL(sv)) {
1265 if (SvNVX(sv) < 0.0)
1266 return I_V(SvNVX(sv));
1268 return (IV) U_V(SvNVX(sv));
1270 if (SvPOKp(sv) && SvLEN(sv))
1273 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1278 if (SvTHINKFIRST(sv)) {
1282 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1283 return SvIV(tmpstr);
1284 #endif /* OVERLOAD */
1285 return (IV)SvRV(sv);
1287 if (SvREADONLY(sv)) {
1289 if (SvNVX(sv) < 0.0)
1290 return I_V(SvNVX(sv));
1292 return (IV) U_V(SvNVX(sv));
1294 if (SvPOKp(sv) && SvLEN(sv))
1301 switch (SvTYPE(sv)) {
1303 sv_upgrade(sv, SVt_IV);
1306 sv_upgrade(sv, SVt_PVIV);
1309 sv_upgrade(sv, SVt_PVNV);
1314 if (SvNVX(sv) < 0.0)
1315 SvIVX(sv) = I_V(SvNVX(sv));
1317 SvUVX(sv) = U_V(SvNVX(sv));
1319 else if (SvPOKp(sv) && SvLEN(sv)) {
1321 SvIVX(sv) = asIV(sv);
1325 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1329 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1330 (unsigned long)sv,(long)SvIVX(sv)));
1340 if (SvGMAGICAL(sv)) {
1345 return U_V(SvNVX(sv));
1346 if (SvPOKp(sv) && SvLEN(sv))
1349 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1354 if (SvTHINKFIRST(sv)) {
1358 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1359 return SvUV(tmpstr);
1360 #endif /* OVERLOAD */
1361 return (UV)SvRV(sv);
1363 if (SvREADONLY(sv)) {
1365 return U_V(SvNVX(sv));
1367 if (SvPOKp(sv) && SvLEN(sv))
1374 switch (SvTYPE(sv)) {
1376 sv_upgrade(sv, SVt_IV);
1379 sv_upgrade(sv, SVt_PVIV);
1382 sv_upgrade(sv, SVt_PVNV);
1387 SvUVX(sv) = U_V(SvNVX(sv));
1389 else if (SvPOKp(sv) && SvLEN(sv)) {
1391 SvUVX(sv) = asUV(sv);
1394 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1398 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1399 (unsigned long)sv,SvUVX(sv)));
1409 if (SvGMAGICAL(sv)) {
1413 if (SvPOKp(sv) && SvLEN(sv)) {
1414 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1416 SET_NUMERIC_STANDARD();
1417 return atof(SvPVX(sv));
1420 return (double)SvIVX(sv);
1422 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1427 if (SvTHINKFIRST(sv)) {
1431 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1432 return SvNV(tmpstr);
1433 #endif /* OVERLOAD */
1434 return (double)(unsigned long)SvRV(sv);
1436 if (SvREADONLY(sv)) {
1437 if (SvPOKp(sv) && SvLEN(sv)) {
1438 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1440 SET_NUMERIC_STANDARD();
1441 return atof(SvPVX(sv));
1444 return (double)SvIVX(sv);
1450 if (SvTYPE(sv) < SVt_NV) {
1451 if (SvTYPE(sv) == SVt_IV)
1452 sv_upgrade(sv, SVt_PVNV);
1454 sv_upgrade(sv, SVt_NV);
1455 DEBUG_c(SET_NUMERIC_STANDARD());
1456 DEBUG_c(PerlIO_printf(Perl_debug_log,
1457 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1459 else if (SvTYPE(sv) < SVt_PVNV)
1460 sv_upgrade(sv, SVt_PVNV);
1462 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1464 SvNVX(sv) = (double)SvIVX(sv);
1466 else if (SvPOKp(sv) && SvLEN(sv)) {
1467 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1469 SET_NUMERIC_STANDARD();
1470 SvNVX(sv) = atof(SvPVX(sv));
1474 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1479 DEBUG_c(SET_NUMERIC_STANDARD());
1480 DEBUG_c(PerlIO_printf(Perl_debug_log,
1481 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1489 I32 numtype = looks_like_number(sv);
1493 return atol(SvPVX(sv));
1494 if (!numtype && dowarn)
1496 SET_NUMERIC_STANDARD();
1497 d = atof(SvPVX(sv));
1508 I32 numtype = looks_like_number(sv);
1511 return atol(SvPVX(sv));
1512 if (!numtype && dowarn)
1514 SET_NUMERIC_STANDARD();
1515 return U_V(atof(SvPVX(sv)));
1519 looks_like_number(sv)
1523 register char *send;
1524 register char *sbegin;
1532 else if (SvPOKp(sv))
1533 sbegin = SvPV(sv, len);
1536 send = sbegin + len;
1541 if (*s == '+' || *s == '-')
1544 /* next must be digit or '.' */
1548 } while (isDIGIT(*s));
1551 while (isDIGIT(*s)) /* optional digits after "." */
1555 else if (*s == '.') {
1557 /* no digits before '.' means we need digits after it */
1561 } while (isDIGIT(*s));
1570 * we return 1 if the number can be converted to _integer_ with atol()
1571 * and 2 if you need (int)atof().
1575 /* we can have an optional exponent part */
1576 if (*s == 'e' || *s == 'E') {
1579 if (*s == '+' || *s == '-')
1584 } while (isDIGIT(*s));
1593 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1611 if (SvGMAGICAL(sv)) {
1618 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1623 SET_NUMERIC_STANDARD();
1624 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1629 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1635 if (SvTHINKFIRST(sv)) {
1639 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1640 return SvPV(tmpstr,*lp);
1641 #endif /* OVERLOAD */
1646 switch (SvTYPE(sv)) {
1655 case SVt_PVMG: s = "SCALAR"; break;
1656 case SVt_PVLV: s = "LVALUE"; break;
1657 case SVt_PVAV: s = "ARRAY"; break;
1658 case SVt_PVHV: s = "HASH"; break;
1659 case SVt_PVCV: s = "CODE"; break;
1660 case SVt_PVGV: s = "GLOB"; break;
1661 case SVt_PVFM: s = "FORMATLINE"; break;
1662 case SVt_PVIO: s = "IO"; break;
1663 default: s = "UNKNOWN"; break;
1667 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1670 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1676 if (SvREADONLY(sv)) {
1678 SET_NUMERIC_STANDARD();
1679 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1684 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1694 if (!SvUPGRADE(sv, SVt_PV))
1697 if (SvTYPE(sv) < SVt_PVNV)
1698 sv_upgrade(sv, SVt_PVNV);
1701 olderrno = errno; /* some Xenix systems wipe out errno here */
1703 if (SvNVX(sv) == 0.0)
1704 (void)strcpy(s,"0");
1708 SET_NUMERIC_STANDARD();
1709 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1712 #ifdef FIXNEGATIVEZERO
1713 if (*s == '-' && s[1] == '0' && !s[2])
1722 else if (SvIOKp(sv)) {
1723 if (SvTYPE(sv) < SVt_PVIV)
1724 sv_upgrade(sv, SVt_PVIV);
1725 olderrno = errno; /* some Xenix systems wipe out errno here */
1726 sv_setpvf(sv, "%Vd", SvIVX(sv));
1732 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1737 *lp = s - SvPVX(sv);
1740 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1744 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1745 /* Sneaky stuff here */
1749 tsv = newSVpv(tokenbuf, 0);
1765 len = strlen(tokenbuf);
1767 #ifdef FIXNEGATIVEZERO
1768 if (len == 2 && t[0] == '-' && t[1] == '0') {
1773 (void)SvUPGRADE(sv, SVt_PV);
1775 s = SvGROW(sv, len + 1);
1783 /* This function is only called on magical items */
1798 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1799 return SvTRUE(tmpsv);
1801 #endif /* OVERLOAD */
1802 return SvRV(sv) != 0;
1805 register XPV* Xpvtmp;
1806 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1807 (*Xpvtmp->xpv_pv > '0' ||
1808 Xpvtmp->xpv_cur > 1 ||
1809 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1816 return SvIVX(sv) != 0;
1819 return SvNVX(sv) != 0.0;
1826 /* Note: sv_setsv() should not be called with a source string that needs
1827 * to be reused, since it may destroy the source string if it is marked
1837 register U32 sflags;
1843 if (SvTHINKFIRST(dstr)) {
1844 if (SvREADONLY(dstr) && curcop != &compiling)
1851 stype = SvTYPE(sstr);
1852 dtype = SvTYPE(dstr);
1854 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1855 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1856 sv_setpvn(dstr, "", 0);
1857 (void)SvPOK_only(dstr);
1858 dtype = SvTYPE(dstr);
1863 #endif /* OVERLOAD */
1864 /* There's a lot of redundancy below but we're going for speed here */
1868 (void)SvOK_off(dstr);
1871 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1873 sv_upgrade(dstr, SVt_IV);
1874 else if (dtype == SVt_NV)
1875 sv_upgrade(dstr, SVt_PVNV);
1877 sv_upgrade(dstr, SVt_PVIV);
1881 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1883 sv_upgrade(dstr, SVt_NV);
1885 sv_upgrade(dstr, SVt_PVNV);
1890 sv_upgrade(dstr, SVt_RV);
1891 else if (dtype == SVt_PVGV &&
1892 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1895 if (curcop->cop_stash != GvSTASH(dstr))
1896 GvIMPORTED_on(dstr);
1906 sv_upgrade(dstr, SVt_PV);
1909 if (dtype < SVt_PVIV)
1910 sv_upgrade(dstr, SVt_PVIV);
1913 if (dtype < SVt_PVNV)
1914 sv_upgrade(dstr, SVt_PVNV);
1918 sv_upgrade(dstr, SVt_PVLV);
1926 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1927 op_name[op->op_type]);
1929 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1933 if (dtype <= SVt_PVGV) {
1935 if (dtype != SVt_PVGV) {
1936 char *name = GvNAME(sstr);
1937 STRLEN len = GvNAMELEN(sstr);
1938 sv_upgrade(dstr, SVt_PVGV);
1939 sv_magic(dstr, dstr, '*', name, len);
1940 GvSTASH(dstr) = GvSTASH(sstr);
1941 GvNAME(dstr) = savepvn(name, len);
1942 GvNAMELEN(dstr) = len;
1943 SvFAKE_on(dstr); /* can coerce to non-glob */
1945 /* ahem, death to those who redefine active sort subs */
1946 else if (curstack == sortstack
1947 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1948 croak("Can't redefine active sort subroutine %s",
1950 (void)SvOK_off(dstr);
1951 GvINTRO_off(dstr); /* one-shot flag */
1953 GvGP(dstr) = gp_ref(GvGP(sstr));
1955 if (curcop->cop_stash != GvSTASH(dstr))
1956 GvIMPORTED_on(dstr);
1963 if (SvGMAGICAL(sstr)) {
1965 if (SvTYPE(sstr) != stype) {
1966 stype = SvTYPE(sstr);
1967 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1972 sv_upgrade(dstr, stype);
1975 sflags = SvFLAGS(sstr);
1977 if (sflags & SVf_ROK) {
1978 if (dtype >= SVt_PV) {
1979 if (dtype == SVt_PVGV) {
1981 SV *sref = SvREFCNT_inc(SvRV(sstr));
1983 int intro = GvINTRO(dstr);
1987 GvGP(dstr)->gp_refcnt--;
1988 GvINTRO_off(dstr); /* one-shot flag */
1989 Newz(602,gp, 1, GP);
1990 GvGP(dstr) = gp_ref(gp);
1991 GvSV(dstr) = NEWSV(72,0);
1992 GvLINE(dstr) = curcop->cop_line;
1993 GvEGV(dstr) = (GV*)dstr;
1996 switch (SvTYPE(sref)) {
1999 SAVESPTR(GvAV(dstr));
2001 dref = (SV*)GvAV(dstr);
2002 GvAV(dstr) = (AV*)sref;
2003 if (curcop->cop_stash != GvSTASH(dstr))
2004 GvIMPORTED_AV_on(dstr);
2008 SAVESPTR(GvHV(dstr));
2010 dref = (SV*)GvHV(dstr);
2011 GvHV(dstr) = (HV*)sref;
2012 if (curcop->cop_stash != GvSTASH(dstr))
2013 GvIMPORTED_HV_on(dstr);
2017 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2018 SvREFCNT_dec(GvCV(dstr));
2019 GvCV(dstr) = Nullcv;
2020 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2023 SAVESPTR(GvCV(dstr));
2026 dref = (SV*)GvCV(dstr);
2027 if (GvCV(dstr) != (CV*)sref) {
2028 CV* cv = GvCV(dstr);
2030 if (!GvCVGEN((GV*)dstr) &&
2031 (CvROOT(cv) || CvXSUB(cv)))
2033 /* ahem, death to those who redefine
2034 * active sort subs */
2035 if (curstack == sortstack &&
2036 sortcop == CvSTART(cv))
2038 "Can't redefine active sort subroutine %s",
2039 GvENAME((GV*)dstr));
2040 if (cv_const_sv(cv))
2041 warn("Constant subroutine %s redefined",
2042 GvENAME((GV*)dstr));
2044 warn("Subroutine %s redefined",
2045 GvENAME((GV*)dstr));
2047 cv_ckproto(cv, (GV*)dstr,
2048 SvPOK(sref) ? SvPVX(sref) : Nullch);
2050 GvCV(dstr) = (CV*)sref;
2051 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2052 GvASSUMECV_on(dstr);
2055 if (curcop->cop_stash != GvSTASH(dstr))
2056 GvIMPORTED_CV_on(dstr);
2060 SAVESPTR(GvIOp(dstr));
2062 dref = (SV*)GvIOp(dstr);
2063 GvIOp(dstr) = (IO*)sref;
2067 SAVESPTR(GvSV(dstr));
2069 dref = (SV*)GvSV(dstr);
2071 if (curcop->cop_stash != GvSTASH(dstr))
2072 GvIMPORTED_SV_on(dstr);
2083 (void)SvOOK_off(dstr); /* backoff */
2084 Safefree(SvPVX(dstr));
2085 SvLEN(dstr)=SvCUR(dstr)=0;
2088 (void)SvOK_off(dstr);
2089 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2091 if (sflags & SVp_NOK) {
2093 SvNVX(dstr) = SvNVX(sstr);
2095 if (sflags & SVp_IOK) {
2096 (void)SvIOK_on(dstr);
2097 SvIVX(dstr) = SvIVX(sstr);
2100 if (SvAMAGIC(sstr)) {
2103 #endif /* OVERLOAD */
2105 else if (sflags & SVp_POK) {
2108 * Check to see if we can just swipe the string. If so, it's a
2109 * possible small lose on short strings, but a big win on long ones.
2110 * It might even be a win on short strings if SvPVX(dstr)
2111 * has to be allocated and SvPVX(sstr) has to be freed.
2114 if (SvTEMP(sstr) && /* slated for free anyway? */
2115 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2117 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2119 SvFLAGS(dstr) &= ~SVf_OOK;
2120 Safefree(SvPVX(dstr) - SvIVX(dstr));
2123 Safefree(SvPVX(dstr));
2125 (void)SvPOK_only(dstr);
2126 SvPV_set(dstr, SvPVX(sstr));
2127 SvLEN_set(dstr, SvLEN(sstr));
2128 SvCUR_set(dstr, SvCUR(sstr));
2130 (void)SvOK_off(sstr);
2131 SvPV_set(sstr, Nullch);
2136 else { /* have to copy actual string */
2137 STRLEN len = SvCUR(sstr);
2139 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2140 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2141 SvCUR_set(dstr, len);
2142 *SvEND(dstr) = '\0';
2143 (void)SvPOK_only(dstr);
2146 if (sflags & SVp_NOK) {
2148 SvNVX(dstr) = SvNVX(sstr);
2150 if (sflags & SVp_IOK) {
2151 (void)SvIOK_on(dstr);
2152 SvIVX(dstr) = SvIVX(sstr);
2155 else if (sflags & SVp_NOK) {
2156 SvNVX(dstr) = SvNVX(sstr);
2157 (void)SvNOK_only(dstr);
2159 (void)SvIOK_on(dstr);
2160 SvIVX(dstr) = SvIVX(sstr);
2163 else if (sflags & SVp_IOK) {
2164 (void)SvIOK_only(dstr);
2165 SvIVX(dstr) = SvIVX(sstr);
2168 (void)SvOK_off(dstr);
2174 sv_setpvn(sv,ptr,len)
2176 register const char *ptr;
2177 register STRLEN len;
2179 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2180 elicit a warning, but it won't hurt. */
2181 if (SvTHINKFIRST(sv)) {
2182 if (SvREADONLY(sv) && curcop != &compiling)
2191 if (SvTYPE(sv) >= SVt_PV) {
2192 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2195 else if (!sv_upgrade(sv, SVt_PV))
2197 SvGROW(sv, len + 1);
2198 Move(ptr,SvPVX(sv),len,char);
2201 (void)SvPOK_only(sv); /* validate pointer */
2208 register const char *ptr;
2210 register STRLEN len;
2212 if (SvTHINKFIRST(sv)) {
2213 if (SvREADONLY(sv) && curcop != &compiling)
2223 if (SvTYPE(sv) >= SVt_PV) {
2224 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2227 else if (!sv_upgrade(sv, SVt_PV))
2229 SvGROW(sv, len + 1);
2230 Move(ptr,SvPVX(sv),len+1,char);
2232 (void)SvPOK_only(sv); /* validate pointer */
2237 sv_usepvn(sv,ptr,len)
2240 register STRLEN len;
2242 if (SvTHINKFIRST(sv)) {
2243 if (SvREADONLY(sv) && curcop != &compiling)
2248 if (!SvUPGRADE(sv, SVt_PV))
2255 Safefree(SvPVX(sv));
2256 Renew(ptr, len+1, char);
2259 SvLEN_set(sv, len+1);
2261 (void)SvPOK_only(sv); /* validate pointer */
2266 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2270 register STRLEN delta;
2272 if (!ptr || !SvPOKp(sv))
2274 if (SvTHINKFIRST(sv)) {
2275 if (SvREADONLY(sv) && curcop != &compiling)
2280 if (SvTYPE(sv) < SVt_PVIV)
2281 sv_upgrade(sv,SVt_PVIV);
2285 SvFLAGS(sv) |= SVf_OOK;
2287 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2288 delta = ptr - SvPVX(sv);
2296 sv_catpvn(sv,ptr,len)
2299 register STRLEN len;
2304 junk = SvPV_force(sv, tlen);
2305 SvGROW(sv, tlen + len + 1);
2308 Move(ptr,SvPVX(sv)+tlen,len,char);
2311 (void)SvPOK_only(sv); /* validate pointer */
2324 if (s = SvPV(sstr, len))
2325 sv_catpvn(dstr,s,len);
2333 register STRLEN len;
2339 junk = SvPV_force(sv, tlen);
2341 SvGROW(sv, tlen + len + 1);
2344 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2346 (void)SvPOK_only(sv); /* validate pointer */
2366 sv_upgrade(sv, SVt_PV);
2367 SvGROW(sv, len + 1);
2372 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2375 sv_magic(sv, obj, how, name, namlen)
2384 if (SvREADONLY(sv) && curcop != &compiling && !strchr("gBf", how))
2386 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2387 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2394 if (!SvUPGRADE(sv, SVt_PVMG))
2397 Newz(702,mg, 1, MAGIC);
2398 mg->mg_moremagic = SvMAGIC(sv);
2401 if (!obj || obj == sv || how == '#')
2405 mg->mg_obj = SvREFCNT_inc(obj);
2406 mg->mg_flags |= MGf_REFCOUNTED;
2409 mg->mg_len = namlen;
2412 mg->mg_ptr = savepvn(name, namlen);
2413 else if (namlen == HEf_SVKEY)
2414 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2418 mg->mg_virtual = &vtbl_sv;
2422 mg->mg_virtual = &vtbl_amagic;
2425 mg->mg_virtual = &vtbl_amagicelem;
2430 #endif /* OVERLOAD */
2432 mg->mg_virtual = &vtbl_bm;
2435 mg->mg_virtual = &vtbl_env;
2438 mg->mg_virtual = &vtbl_fm;
2441 mg->mg_virtual = &vtbl_envelem;
2444 mg->mg_virtual = &vtbl_mglob;
2447 mg->mg_virtual = &vtbl_isa;
2450 mg->mg_virtual = &vtbl_isaelem;
2453 mg->mg_virtual = &vtbl_nkeys;
2460 mg->mg_virtual = &vtbl_dbline;
2464 mg->mg_virtual = &vtbl_mutex;
2466 #endif /* USE_THREADS */
2467 #ifdef USE_LOCALE_COLLATE
2469 mg->mg_virtual = &vtbl_collxfrm;
2471 #endif /* USE_LOCALE_COLLATE */
2473 mg->mg_virtual = &vtbl_pack;
2477 mg->mg_virtual = &vtbl_packelem;
2480 mg->mg_virtual = &vtbl_sig;
2483 mg->mg_virtual = &vtbl_sigelem;
2486 mg->mg_virtual = &vtbl_taint;
2490 mg->mg_virtual = &vtbl_uvar;
2493 mg->mg_virtual = &vtbl_vec;
2496 mg->mg_virtual = &vtbl_substr;
2499 mg->mg_virtual = &vtbl_defelem;
2502 mg->mg_virtual = &vtbl_glob;
2505 mg->mg_virtual = &vtbl_arylen;
2508 mg->mg_virtual = &vtbl_pos;
2510 case '~': /* Reserved for use by extensions not perl internals. */
2511 /* Useful for attaching extension internal data to perl vars. */
2512 /* Note that multiple extensions may clash if magical scalars */
2513 /* etc holding private data from one are passed to another. */
2517 croak("Don't know how to handle magic of type '%c'", how);
2521 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2525 sv_unmagic(sv, type)
2531 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2534 for (mg = *mgp; mg; mg = *mgp) {
2535 if (mg->mg_type == type) {
2536 MGVTBL* vtbl = mg->mg_virtual;
2537 *mgp = mg->mg_moremagic;
2538 if (vtbl && vtbl->svt_free)
2539 (*vtbl->svt_free)(sv, mg);
2540 if (mg->mg_ptr && mg->mg_type != 'g')
2541 if (mg->mg_len >= 0)
2542 Safefree(mg->mg_ptr);
2543 else if (mg->mg_len == HEf_SVKEY)
2544 SvREFCNT_dec((SV*)mg->mg_ptr);
2545 if (mg->mg_flags & MGf_REFCOUNTED)
2546 SvREFCNT_dec(mg->mg_obj);
2550 mgp = &mg->mg_moremagic;
2554 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2561 sv_insert(bigstr,offset,len,little,littlelen)
2570 register char *midend;
2571 register char *bigend;
2575 croak("Can't modify non-existent substring");
2576 SvPV_force(bigstr, na);
2578 i = littlelen - len;
2579 if (i > 0) { /* string might grow */
2580 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2581 mid = big + offset + len;
2582 midend = bigend = big + SvCUR(bigstr);
2585 while (midend > mid) /* shove everything down */
2586 *--bigend = *--midend;
2587 Move(little,big+offset,littlelen,char);
2593 Move(little,SvPVX(bigstr)+offset,len,char);
2598 big = SvPVX(bigstr);
2601 bigend = big + SvCUR(bigstr);
2603 if (midend > bigend)
2604 croak("panic: sv_insert");
2606 if (mid - big > bigend - midend) { /* faster to shorten from end */
2608 Move(little, mid, littlelen,char);
2611 i = bigend - midend;
2613 Move(midend, mid, i,char);
2617 SvCUR_set(bigstr, mid - big);
2620 else if (i = mid - big) { /* faster from front */
2621 midend -= littlelen;
2623 sv_chop(bigstr,midend-i);
2628 Move(little, mid, littlelen,char);
2630 else if (littlelen) {
2631 midend -= littlelen;
2632 sv_chop(bigstr,midend);
2633 Move(little,midend,littlelen,char);
2636 sv_chop(bigstr,midend);
2641 /* make sv point to what nstr did */
2648 U32 refcnt = SvREFCNT(sv);
2649 if (SvTHINKFIRST(sv)) {
2650 if (SvREADONLY(sv) && curcop != &compiling)
2655 if (SvREFCNT(nsv) != 1)
2656 warn("Reference miscount in sv_replace()");
2657 if (SvMAGICAL(sv)) {
2661 sv_upgrade(nsv, SVt_PVMG);
2662 SvMAGIC(nsv) = SvMAGIC(sv);
2663 SvFLAGS(nsv) |= SvMAGICAL(sv);
2669 assert(!SvREFCNT(sv));
2670 StructCopy(nsv,sv,SV);
2671 SvREFCNT(sv) = refcnt;
2672 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2681 assert(SvREFCNT(sv) == 0);
2684 if (defstash) { /* Still have a symbol table? */
2690 SAVEFREESV(SvSTASH(sv));
2692 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2697 sv_upgrade(&ref, SVt_RV);
2698 SvRV(&ref) = SvREFCNT_inc(sv);
2700 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2701 creating+destructing a ref
2702 leads to disaster. */
2708 perl_call_sv((SV*)GvCV(destructor),
2709 G_DISCARD|G_EVAL|G_KEEPERR);
2710 del_XRV(SvANY(&ref));
2717 SvREFCNT_dec(SvSTASH(sv));
2719 SvOBJECT_off(sv); /* Curse the object. */
2720 if (SvTYPE(sv) != SVt_PVIO)
2721 --sv_objcount; /* XXX Might want something more general */
2726 && (ret = perl_get_sv("DB::ret", FALSE))
2727 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2728 /* Debugger is prone to dangling references. */
2735 croak("DESTROY created new reference to dead object");
2736 /* DESTROY gave object new lease on life */
2741 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2743 switch (SvTYPE(sv)) {
2745 if (IoIFP(sv) != PerlIO_stdin() &&
2746 IoIFP(sv) != PerlIO_stdout() &&
2747 IoIFP(sv) != PerlIO_stderr())
2749 Safefree(IoTOP_NAME(sv));
2750 Safefree(IoFMT_NAME(sv));
2751 Safefree(IoBOTTOM_NAME(sv));
2767 Safefree(GvNAME(sv));
2774 (void)SvOOK_off(sv);
2779 SvREFCNT_dec(SvRV(sv));
2780 else if (SvPVX(sv) && SvLEN(sv))
2781 Safefree(SvPVX(sv));
2791 switch (SvTYPE(sv)) {
2807 del_XPVIV(SvANY(sv));
2810 del_XPVNV(SvANY(sv));
2813 del_XPVMG(SvANY(sv));
2816 del_XPVLV(SvANY(sv));
2819 del_XPVAV(SvANY(sv));
2822 del_XPVHV(SvANY(sv));
2825 del_XPVCV(SvANY(sv));
2828 del_XPVGV(SvANY(sv));
2831 del_XPVBM(SvANY(sv));
2834 del_XPVFM(SvANY(sv));
2837 del_XPVIO(SvANY(sv));
2840 SvFLAGS(sv) &= SVf_BREAK;
2841 SvFLAGS(sv) |= SVTYPEMASK;
2859 if (SvREADONLY(sv)) {
2860 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2863 if (SvREFCNT(sv) == 0) {
2864 if (SvFLAGS(sv) & SVf_BREAK)
2866 if (in_clean_all) /* All is fair */
2868 warn("Attempt to free unreferenced scalar");
2871 if (--SvREFCNT(sv) > 0)
2875 warn("Attempt to free temp prematurely");
2897 junk = SvPV(sv, len);
2916 pv1 = SvPV(str1, cur1);
2921 pv2 = SvPV(str2, cur2);
2926 return memEQ(pv1, pv2, cur1);
2935 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2937 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2941 return cur2 ? -1 : 0;
2946 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2949 return retval < 0 ? -1 : 1;
2954 return cur1 < cur2 ? -1 : 1;
2958 sv_cmp_locale(sv1, sv2)
2962 #ifdef USE_LOCALE_COLLATE
2968 if (collation_standard)
2972 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2974 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2976 if (!pv1 || !len1) {
2987 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2990 return retval < 0 ? -1 : 1;
2993 * When the result of collation is equality, that doesn't mean
2994 * that there are no differences -- some locales exclude some
2995 * characters from consideration. So to avoid false equalities,
2996 * we use the raw string as a tiebreaker.
3002 #endif /* USE_LOCALE_COLLATE */
3004 return sv_cmp(sv1, sv2);
3007 #ifdef USE_LOCALE_COLLATE
3009 * Any scalar variable may carry an 'o' magic that contains the
3010 * scalar data of the variable transformed to such a format that
3011 * a normal memory comparison can be used to compare the data
3012 * according to the locale settings.
3015 sv_collxfrm(sv, nxp)
3021 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3022 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3027 Safefree(mg->mg_ptr);
3029 if ((xf = mem_collxfrm(s, len, &xlen))) {
3030 if (SvREADONLY(sv)) {
3036 sv_magic(sv, 0, 'o', 0, 0);
3037 mg = mg_find(sv, 'o');
3050 if (mg && mg->mg_ptr) {
3052 return mg->mg_ptr + sizeof(collation_ix);
3060 #endif /* USE_LOCALE_COLLATE */
3063 sv_gets(sv,fp,append)
3065 register PerlIO *fp;
3070 register STDCHAR rslast;
3071 register STDCHAR *bp;
3075 if (SvTHINKFIRST(sv)) {
3076 if (SvREADONLY(sv) && curcop != &compiling)
3081 if (!SvUPGRADE(sv, SVt_PV))
3089 else if (RsPARA(rs)) {
3094 rsptr = SvPV(rs, rslen);
3095 rslast = rslen ? rsptr[rslen - 1] : '\0';
3097 if (RsPARA(rs)) { /* have to do this both before and after */
3098 do { /* to make sure file boundaries work right */
3101 i = PerlIO_getc(fp);
3105 PerlIO_ungetc(fp,i);
3111 /* See if we know enough about I/O mechanism to cheat it ! */
3113 /* This used to be #ifdef test - it is made run-time test for ease
3114 of abstracting out stdio interface. One call should be cheap
3115 enough here - and may even be a macro allowing compile
3119 if (PerlIO_fast_gets(fp)) {
3122 * We're going to steal some values from the stdio struct
3123 * and put EVERYTHING in the innermost loop into registers.
3125 register STDCHAR *ptr;
3129 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3130 /* An ungetc()d char is handled separately from the regular
3131 * buffer, so we getc() it back out and stuff it in the buffer.
3133 i = PerlIO_getc(fp);
3134 if (i == EOF) return 0;
3135 *(--((*fp)->_ptr)) = (unsigned char) i;
3139 /* Here is some breathtakingly efficient cheating */
3141 cnt = PerlIO_get_cnt(fp); /* get count into register */
3142 (void)SvPOK_only(sv); /* validate pointer */
3143 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3144 if (cnt > 80 && SvLEN(sv) > append) {
3145 shortbuffered = cnt - SvLEN(sv) + append + 1;
3146 cnt -= shortbuffered;
3150 /* remember that cnt can be negative */
3151 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3156 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3157 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3158 DEBUG_P(PerlIO_printf(Perl_debug_log,
3159 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3160 DEBUG_P(PerlIO_printf(Perl_debug_log,
3161 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3162 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3163 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3168 while (cnt > 0) { /* this | eat */
3170 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3171 goto thats_all_folks; /* screams | sed :-) */
3175 Copy(ptr, bp, cnt, char); /* this | eat */
3176 bp += cnt; /* screams | dust */
3177 ptr += cnt; /* louder | sed :-) */
3182 if (shortbuffered) { /* oh well, must extend */
3183 cnt = shortbuffered;
3185 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3187 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3188 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3192 DEBUG_P(PerlIO_printf(Perl_debug_log,
3193 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3194 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3195 DEBUG_P(PerlIO_printf(Perl_debug_log,
3196 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3197 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3198 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3199 /* This used to call 'filbuf' in stdio form, but as that behaves like
3200 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3201 another abstraction. */
3202 i = PerlIO_getc(fp); /* get more characters */
3203 DEBUG_P(PerlIO_printf(Perl_debug_log,
3204 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3205 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3206 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3207 cnt = PerlIO_get_cnt(fp);
3208 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3209 DEBUG_P(PerlIO_printf(Perl_debug_log,
3210 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3212 if (i == EOF) /* all done for ever? */
3213 goto thats_really_all_folks;
3215 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3217 SvGROW(sv, bpx + cnt + 2);
3218 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3220 *bp++ = i; /* store character from PerlIO_getc */
3222 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3223 goto thats_all_folks;
3227 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3228 memNE((char*)bp - rslen, rsptr, rslen))
3229 goto screamer; /* go back to the fray */
3230 thats_really_all_folks:
3232 cnt += shortbuffered;
3233 DEBUG_P(PerlIO_printf(Perl_debug_log,
3234 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3235 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3236 DEBUG_P(PerlIO_printf(Perl_debug_log,
3237 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3238 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3239 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3241 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3242 DEBUG_P(PerlIO_printf(Perl_debug_log,
3243 "Screamer: done, len=%d, string=|%.*s|\n",
3244 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3248 /*The big, slow, and stupid way */
3253 register STDCHAR *bpe = buf + sizeof(buf);
3255 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3256 ; /* keep reading */
3260 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3261 /* Accomodate broken VAXC compiler, which applies U8 cast to
3262 * both args of ?: operator, causing EOF to change into 255
3264 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3268 sv_catpvn(sv, (char *) buf, cnt);
3270 sv_setpvn(sv, (char *) buf, cnt);
3272 if (i != EOF && /* joy */
3274 SvCUR(sv) < rslen ||
3275 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3279 * If we're reading from a TTY and we get a short read,
3280 * indicating that the user hit his EOF character, we need
3281 * to notice it now, because if we try to read from the TTY
3282 * again, the EOF condition will disappear.
3284 * The comparison of cnt to sizeof(buf) is an optimization
3285 * that prevents unnecessary calls to feof().
3289 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3294 if (RsPARA(rs)) { /* have to do this both before and after */
3295 while (i != EOF) { /* to make sure file boundaries work right */
3296 i = PerlIO_getc(fp);
3298 PerlIO_ungetc(fp,i);
3304 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3317 if (SvTHINKFIRST(sv)) {
3318 if (SvREADONLY(sv) && curcop != &compiling)
3322 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3323 #endif /* OVERLOAD */
3329 flags = SvFLAGS(sv);
3330 if (flags & SVp_NOK) {
3331 (void)SvNOK_only(sv);
3335 if (flags & SVp_IOK) {
3336 if (SvIVX(sv) == IV_MAX)
3337 sv_setnv(sv, (double)IV_MAX + 1.0);
3339 (void)SvIOK_only(sv);
3344 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3345 if ((flags & SVTYPEMASK) < SVt_PVNV)
3346 sv_upgrade(sv, SVt_NV);
3348 (void)SvNOK_only(sv);
3352 while (isALPHA(*d)) d++;
3353 while (isDIGIT(*d)) d++;
3355 SET_NUMERIC_STANDARD();
3356 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3360 while (d >= SvPVX(sv)) {
3370 *(d--) -= 'z' - 'a' + 1;
3373 /* oh,oh, the number grew */
3374 SvGROW(sv, SvCUR(sv) + 2);
3376 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3392 if (SvTHINKFIRST(sv)) {
3393 if (SvREADONLY(sv) && curcop != &compiling)
3397 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3398 #endif /* OVERLOAD */
3404 flags = SvFLAGS(sv);
3405 if (flags & SVp_NOK) {
3407 (void)SvNOK_only(sv);
3410 if (flags & SVp_IOK) {
3411 if (SvIVX(sv) == IV_MIN)
3412 sv_setnv(sv, (double)IV_MIN - 1.0);
3414 (void)SvIOK_only(sv);
3419 if (!(flags & SVp_POK)) {
3420 if ((flags & SVTYPEMASK) < SVt_PVNV)
3421 sv_upgrade(sv, SVt_NV);
3423 (void)SvNOK_only(sv);
3426 SET_NUMERIC_STANDARD();
3427 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3430 /* Make a string that will exist for the duration of the expression
3431 * evaluation. Actually, it may have to last longer than that, but
3432 * hopefully we won't free it until it has been assigned to a
3433 * permanent location. */
3439 tmps_max += (tmps_max < 512) ? 128 : 512;
3440 Renew(tmps_stack, tmps_max, SV*);
3444 sv_mortalcopy(oldstr)
3454 sv_setsv(sv,oldstr);
3455 if (++tmps_ix >= tmps_max)
3457 tmps_stack[tmps_ix] = sv;
3471 SvFLAGS(sv) = SVs_TEMP;
3472 if (++tmps_ix >= tmps_max)
3474 tmps_stack[tmps_ix] = sv;
3478 /* same thing without the copying */
3487 if (SvREADONLY(sv) && curcop != &compiling)
3489 if (++tmps_ix >= tmps_max)
3491 tmps_stack[tmps_ix] = sv;
3509 sv_setpvn(sv,s,len);
3515 newSVpvf(const char* pat, ...)
3519 newSVpvf(pat, va_alist)
3532 va_start(args, pat);
3536 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3581 sv_upgrade(sv, SVt_RV);
3583 SvRV(sv) = SvREFCNT_inc(ref);
3599 #endif /* CRIPPLED_CC */
3601 /* make an exact duplicate of old */
3611 if (SvTYPE(old) == SVTYPEMASK) {
3612 warn("semi-panic: attempt to dup freed string");
3642 if (!*s) { /* reset ?? searches */
3643 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3644 pm->op_pmflags &= ~PMf_USED;
3649 /* reset variables */
3651 if (!HvARRAY(stash))
3654 Zero(todo, 256, char);
3661 for ( ; i <= max; i++) {
3664 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3665 for (entry = HvARRAY(stash)[i];
3667 entry = HeNEXT(entry)) {
3668 if (!todo[(U8)*HeKEY(entry)])
3670 gv = (GV*)HeVAL(entry);
3673 if (SvTYPE(sv) >= SVt_PV) {
3675 if (SvPVX(sv) != Nullch)
3682 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3684 #ifndef VMS /* VMS has no environ array */
3686 environ[0] = Nullch;
3701 switch (SvTYPE(sv)) {
3709 croak("Bad filehandle: %s", GvNAME(gv));
3713 croak(no_usym, "filehandle");
3715 return sv_2io(SvRV(sv));
3716 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3722 croak("Bad filehandle: %s", SvPV(sv,na));
3729 sv_2cv(sv, st, gvp, lref)
3739 return *gvp = Nullgv, Nullcv;
3740 switch (SvTYPE(sv)) {
3760 if (SvTYPE(cv) != SVt_PVCV)
3761 croak("Not a subroutine reference");
3769 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3775 if (lref && !GvCVu(gv)) {
3778 tmpsv = NEWSV(704,0);
3779 gv_efullname3(tmpsv, gv, Nullch);
3780 newSUB(start_subparse(FALSE, 0),
3781 newSVOP(OP_CONST, 0, tmpsv),
3786 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3803 if ((Xpv = (XPV*)SvANY(sv)) &&
3804 (*Xpv->xpv_pv > '0' ||
3806 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3813 return SvIVX(sv) != 0;
3816 return SvNVX(sv) != 0.0;
3818 return sv_2bool(sv);
3822 #endif /* !SvTRUE */
3867 return sv_2pv(sv, lp);
3872 sv_pvn_force(sv, lp)
3878 if (SvREADONLY(sv) && curcop != &compiling)
3885 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3886 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3893 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3894 op_name[op->op_type]);
3899 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3904 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3905 SvGROW(sv, len + 1);
3906 Move(s,SvPVX(sv),len,char);
3911 SvPOK_on(sv); /* validate pointer */
3913 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3914 (unsigned long)sv,SvPVX(sv)));
3925 if (ob && SvOBJECT(sv))
3926 return HvNAME(SvSTASH(sv));
3928 switch (SvTYPE(sv)) {
3942 case SVt_PVLV: return "LVALUE";
3943 case SVt_PVAV: return "ARRAY";
3944 case SVt_PVHV: return "HASH";
3945 case SVt_PVCV: return "CODE";
3946 case SVt_PVGV: return "GLOB";
3947 case SVt_PVFM: return "FORMLINE";
3948 default: return "UNKNOWN";
3984 return strEQ(HvNAME(SvSTASH(sv)), name);
3988 newSVrv(rv, classname)
3999 sv_upgrade(rv, SVt_RV);
4000 SvRV(rv) = SvREFCNT_inc(sv);
4004 HV* stash = gv_stashpv(classname, TRUE);
4005 (void)sv_bless(rv, stash);
4011 sv_setref_pv(rv, classname, pv)
4017 sv_setsv(rv, &sv_undef);
4019 sv_setiv(newSVrv(rv,classname), (IV)pv);
4024 sv_setref_iv(rv, classname, iv)
4029 sv_setiv(newSVrv(rv,classname), iv);
4034 sv_setref_nv(rv, classname, nv)
4039 sv_setnv(newSVrv(rv,classname), nv);
4044 sv_setref_pvn(rv, classname, pv, n)
4050 sv_setpvn(newSVrv(rv,classname), pv, n);
4062 croak("Can't bless non-reference value");
4064 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4065 if (SvREADONLY(ref))
4067 if (SvOBJECT(ref)) {
4068 if (SvTYPE(ref) != SVt_PVIO)
4070 SvREFCNT_dec(SvSTASH(ref));
4074 if (SvTYPE(ref) != SVt_PVIO)
4076 (void)SvUPGRADE(ref, SVt_PVMG);
4077 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4084 #endif /* OVERLOAD */
4093 assert(SvTYPE(sv) == SVt_PVGV);
4097 sv_unmagic(sv, '*');
4098 Safefree(GvNAME(sv));
4100 SvFLAGS(sv) &= ~SVTYPEMASK;
4101 SvFLAGS(sv) |= SVt_PVMG;
4112 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4115 sv_2mortal(rv); /* Schedule for freeing later */
4122 sv_magic((sv), Nullsv, 't', Nullch, 0);
4129 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4130 MAGIC *mg = mg_find(sv, 't');
4140 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4141 MAGIC *mg = mg_find(sv, 't');
4142 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4150 sv_setpvf(SV *sv, const char* pat, ...)
4154 sv_setpvf(sv, pat, va_alist)
4162 va_start(args, pat);
4166 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4172 sv_catpvf(SV *sv, const char* pat, ...)
4176 sv_catpvf(sv, pat, va_alist)
4184 va_start(args, pat);
4188 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4193 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4202 sv_setpvn(sv, "", 0);
4203 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4207 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4221 static char nullstr[] = "(null)";
4223 /* no matter what, this is a string now */
4224 (void)SvPV_force(sv, origlen);
4226 /* special-case "", "%s", and "%_" */
4229 if (patlen == 2 && pat[0] == '%') {
4233 char *s = va_arg(*args, char*);
4234 sv_catpv(sv, s ? s : nullstr);
4236 else if (svix < svmax)
4237 sv_catsv(sv, *svargs);
4241 sv_catsv(sv, va_arg(*args, SV*));
4244 /* See comment on '_' below */
4249 patend = (char*)pat + patlen;
4250 for (p = (char*)pat; p < patend; p = q) {
4258 bool has_precis = FALSE;
4262 STRLEN esignlen = 0;
4264 char *eptr = Nullch;
4266 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4268 static char *efloatbuf = Nullch;
4269 static STRLEN efloatsize = 0;
4281 for (q = p; q < patend && *q != '%'; ++q) ;
4283 sv_catpvn(sv, p, q - p);
4321 case '1': case '2': case '3':
4322 case '4': case '5': case '6':
4323 case '7': case '8': case '9':
4326 width = width * 10 + (*q++ - '0');
4331 i = va_arg(*args, int);
4333 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4335 width = (i < 0) ? -i : i;
4346 i = va_arg(*args, int);
4348 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4349 precis = (i < 0) ? 0 : i;
4355 precis = precis * 10 + (*q++ - '0');
4364 #if 0 /* when quads have better support within Perl */
4365 if (*(q + 1) == 'l') {
4391 c = va_arg(*args, int);
4393 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4400 eptr = va_arg(*args, char*);
4402 elen = strlen(eptr);
4405 elen = sizeof nullstr - 1;
4408 else if (svix < svmax)
4409 eptr = SvPVx(svargs[svix++], elen);
4414 * The "%_" hack might have to be changed someday,
4415 * if ISO or ANSI decide to use '_' for something.
4416 * So we keep it hidden from users' code.
4420 eptr = SvPVx(va_arg(*args, SV*), elen);
4423 if (has_precis && elen > precis)
4431 uv = (UV)va_arg(*args, void*);
4433 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4444 case 'h': iv = (short)va_arg(*args, int); break;
4445 default: iv = va_arg(*args, int); break;
4446 case 'l': iv = va_arg(*args, long); break;
4447 case 'V': iv = va_arg(*args, IV); break;
4451 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4453 case 'h': iv = (short)iv; break;
4454 default: iv = (int)iv; break;
4455 case 'l': iv = (long)iv; break;
4462 esignbuf[esignlen++] = plus;
4466 esignbuf[esignlen++] = '-';
4492 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4493 default: uv = va_arg(*args, unsigned); break;
4494 case 'l': uv = va_arg(*args, unsigned long); break;
4495 case 'V': uv = va_arg(*args, UV); break;
4499 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4501 case 'h': uv = (unsigned short)uv; break;
4502 default: uv = (unsigned)uv; break;
4503 case 'l': uv = (unsigned long)uv; break;
4509 eptr = ebuf + sizeof ebuf;
4513 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4519 esignbuf[esignlen++] = '0';
4520 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4526 *--eptr = '0' + dig;
4528 if (alt && *eptr != '0')
4531 default: /* it had better be ten or less */
4534 *--eptr = '0' + dig;
4535 } while (uv /= base);
4538 elen = (ebuf + sizeof ebuf) - eptr;
4539 if (has_precis && precis > elen)
4540 zeros = precis - elen;
4543 /* FLOATING POINT */
4546 c = 'f'; /* maybe %F isn't supported here */
4552 /* This is evil, but floating point is even more evil */
4555 nv = va_arg(*args, double);
4557 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4560 if (c != 'e' && c != 'E') {
4562 (void)frexp(nv, &i);
4563 if (i == PERL_INT_MIN)
4564 die("panic: frexp");
4566 need = BIT_DIGITS(i);
4568 need += has_precis ? precis : 6; /* known default */
4572 need += 20; /* fudge factor */
4573 if (efloatsize < need) {
4574 Safefree(efloatbuf);
4575 efloatsize = need + 20; /* more fudge */
4576 New(906, efloatbuf, efloatsize, char);
4579 eptr = ebuf + sizeof ebuf;
4584 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4589 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4599 (void)sprintf(efloatbuf, eptr, nv);
4602 elen = strlen(efloatbuf);
4606 * User-defined locales may include arbitrary characters.
4607 * And, unfortunately, some system may alloc the "C" locale
4608 * to be overridden by a malicious user.
4611 *used_locale = TRUE;
4612 #endif /* LC_NUMERIC */
4619 i = SvCUR(sv) - origlen;
4622 case 'h': *(va_arg(*args, short*)) = i; break;
4623 default: *(va_arg(*args, int*)) = i; break;
4624 case 'l': *(va_arg(*args, long*)) = i; break;
4625 case 'V': *(va_arg(*args, IV*)) = i; break;
4628 else if (svix < svmax)
4629 sv_setuv(svargs[svix++], (UV)i);
4630 continue; /* not "break" */
4636 if (!args && dowarn &&
4637 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4638 SV *msg = sv_newmortal();
4639 sv_setpvf(msg, "Invalid conversion in %s: ",
4640 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4642 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4645 sv_catpv(msg, "end of string");
4646 warn("%_", msg); /* yes, this is reentrant */
4648 /* output mangled stuff */
4654 have = esignlen + zeros + elen;
4655 need = (have > width ? have : width);
4658 SvGROW(sv, SvLEN(sv) + need);
4660 if (esignlen && fill == '0') {
4661 for (i = 0; i < esignlen; i++)
4665 memset(p, fill, gap);
4668 if (esignlen && fill != '0') {
4669 for (i = 0; i < esignlen; i++)
4673 for (i = zeros; i; i--)
4677 memcpy(p, eptr, elen);
4681 memset(p, ' ', gap);
4685 SvCUR(sv) = p - SvPVX(sv);
4694 SV *d = sv_newmortal();
4700 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4704 flags = SvFLAGS(sv);
4707 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4708 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4709 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4710 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4711 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4712 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4713 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4714 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4715 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4716 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4718 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4719 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4720 if (flags & SVf_POK) sv_catpv(d, "POK,");
4721 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4722 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4723 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4724 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4727 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4728 #endif /* OVERLOAD */
4729 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4730 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4731 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4732 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4737 if (CvANON(sv)) sv_catpv(d, "ANON,");
4738 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4739 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4740 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4741 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4744 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4745 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4748 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4749 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4750 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4751 if (GvIMPORTED(sv)) {
4752 sv_catpv(d, "IMPORT");
4753 if (GvIMPORTED(sv) == GVf_IMPORTED)
4754 sv_catpv(d, "ALL,");
4757 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4758 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4759 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4760 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4766 if (*(SvEND(d) - 1) == ',')
4767 SvPVX(d)[--SvCUR(d)] = '\0';
4771 PerlIO_printf(Perl_debug_log, "SV = ");
4774 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4777 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4780 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4783 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4786 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4789 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4792 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4795 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4798 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4801 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4804 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4807 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4810 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4813 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4816 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4819 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4822 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4825 if (type >= SVt_PVIV || type == SVt_IV)
4826 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4827 if (type >= SVt_PVNV || type == SVt_NV) {
4828 SET_NUMERIC_STANDARD();
4829 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4832 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4838 if (type <= SVt_PVLV) {
4840 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4841 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4843 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4845 if (type >= SVt_PVMG) {
4847 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4850 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4854 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4855 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4856 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4857 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4858 sv_dump(LvTARG(sv));
4861 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4862 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4863 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4864 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4865 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4866 flags = AvFLAGS(sv);
4868 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4869 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4870 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4871 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4872 SvCUR(d) ? SvPVX(d) + 1 : "");
4875 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4876 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4877 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4878 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4879 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4880 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4882 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4884 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4888 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4891 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4892 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4893 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4894 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4895 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4896 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4897 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4898 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4900 PerlIO_printf(Perl_debug_log, "\n");
4902 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4903 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4904 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4905 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4907 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4908 PerlIO_printf(Perl_debug_log, " CONDP = 0x%lx\n", (long)CvCONDP(sv));
4909 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4910 #endif /* USE_THREADS */
4911 if (type == SVt_PVFM)
4912 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4915 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4916 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4917 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4918 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4919 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4920 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4921 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4922 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4923 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4924 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4925 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4926 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4927 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4928 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4929 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4930 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4933 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4934 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4935 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4936 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4937 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4938 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4939 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4940 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4941 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4942 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4943 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4944 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4945 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4946 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4947 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4948 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));