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));
60 static void sv_check_thinkfirst _((SV *sv));
62 typedef void (*SVFUNC) _((SV*));
68 (p) = (SV*)safemalloc(sizeof(SV)); \
81 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
83 #define REG_REPLACE(sv,a,b) \
85 void* p = sv->sv_any; \
86 I32 h = REGHASH(sv, regsize); \
88 while (registry[i] != (a)) { \
92 die("SV registry bug"); \
97 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
98 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
104 if (sv_count >= (regsize >> 1))
106 SV **oldreg = registry;
107 I32 oldsize = regsize;
109 regsize = regsize ? ((regsize << 2) + 1) : 2037;
110 registry = (SV**)safemalloc(regsize * sizeof(SV*));
111 memzero(registry, regsize * sizeof(SV*));
116 for (i = 0; i < oldsize; ++i) {
117 SV* oldsv = oldreg[i];
143 for (i = 0; i < regsize; ++i) {
144 SV* sv = registry[i];
151 sv_add_arena(ptr, size, flags)
156 if (!(flags & SVf_FAKE))
163 * "A time to plant, and a time to uproot what was planted..."
166 #define plant_SV(p) \
168 SvANY(p) = (void *)sv_root; \
169 SvFLAGS(p) = SVTYPEMASK; \
174 #define uproot_SV(p) \
176 MUTEX_LOCK(&sv_mutex); \
178 sv_root = (SV*)SvANY(p); \
180 MUTEX_UNLOCK(&sv_mutex); \
206 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
208 svend = &sva[SvREFCNT(sva)];
209 if (p >= sv && p < svend)
213 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
220 #else /* ! DEBUGGING */
222 #define del_SV(p) plant_SV(p)
224 #endif /* DEBUGGING */
227 sv_add_arena(ptr, size, flags)
235 Zero(sva, size, char);
237 /* The first SV in an arena isn't an SV. */
238 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
239 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
240 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
245 svend = &sva[SvREFCNT(sva) - 1];
248 SvANY(sv) = (void *)(SV*)(sv + 1);
249 SvFLAGS(sv) = SVTYPEMASK;
253 SvFLAGS(sv) = SVTYPEMASK;
262 sv_add_arena(nice_chunk, nice_chunk_size, 0);
266 char *chunk; /* must use New here to match call to */
267 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
268 sv_add_arena(chunk, 1008, 0);
282 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
283 svend = &sva[SvREFCNT(sva)];
284 for (sv = sva + 1; sv < svend; ++sv) {
285 if (SvTYPE(sv) != SVTYPEMASK)
297 if (SvTYPE(sv) != SVTYPEMASK) {
298 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
299 PerlIO_printf(PerlIO_stderr(), "****\n");
307 visit(do_report_used);
316 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
317 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
323 /* XXX Might want to check arrays, etc. */
326 #ifndef DISABLE_DESTRUCTOR_KLUDGE
328 do_clean_named_objs(sv)
331 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
332 do_clean_objs(GvSV(sv));
336 static bool in_clean_objs = FALSE;
341 in_clean_objs = TRUE;
342 #ifndef DISABLE_DESTRUCTOR_KLUDGE
343 visit(do_clean_named_objs);
345 visit(do_clean_objs);
346 in_clean_objs = FALSE;
353 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
354 SvFLAGS(sv) |= SVf_BREAK;
358 static bool in_clean_all = FALSE;
365 in_clean_all = FALSE;
374 /* Free arenas here, but be careful about fake ones. (We assume
375 contiguity of the fake ones with the corresponding real ones.) */
377 for (sva = sv_arenaroot; sva; sva = svanext) {
378 svanext = (SV*) SvANY(sva);
379 while (svanext && SvFAKE(svanext))
380 svanext = (SV*) SvANY(svanext);
383 Safefree((void *)sva);
397 * See comment in more_xiv() -- RAM.
399 xiv_root = (IV**)*xiv;
400 return (XPVIV*)((char*)xiv - sizeof(XPV));
409 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
410 *xiv = (IV *)xiv_root;
418 register IV** xivend;
419 XPV* ptr = (XPV*)safemalloc(1008);
420 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
421 xiv_arenaroot = ptr; /* to keep Purify happy */
424 xivend = &xiv[1008 / sizeof(IV *) - 1];
425 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
427 while (xiv < xivend) {
428 *xiv = (IV *)(xiv + 1);
441 xnv_root = *(double**)xnv;
442 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
451 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
452 *(double**)xnv = xnv_root;
459 register double* xnv;
460 register double* xnvend;
461 xnv = (double*)safemalloc(1008);
462 xnvend = &xnv[1008 / sizeof(double) - 1];
463 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
465 while (xnv < xnvend) {
466 *(double**)xnv = (double*)(xnv + 1);
479 xrv_root = (XRV*)xrv->xrv_rv;
489 p->xrv_rv = (SV*)xrv_root;
497 register XRV* xrvend;
498 xrv_root = (XRV*)safemalloc(1008);
500 xrvend = &xrv[1008 / sizeof(XRV) - 1];
501 while (xrv < xrvend) {
502 xrv->xrv_rv = (SV*)(xrv + 1);
515 xpv_root = (XPV*)xpv->xpv_pv;
525 p->xpv_pv = (char*)xpv_root;
533 register XPV* xpvend;
534 xpv_root = (XPV*)safemalloc(1008);
536 xpvend = &xpv[1008 / sizeof(XPV) - 1];
537 while (xpv < xpvend) {
538 xpv->xpv_pv = (char*)(xpv + 1);
546 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
547 #define del_XIV(p) free((char*)p)
549 #define new_XIV() (void*)new_xiv()
550 #define del_XIV(p) del_xiv(p)
554 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
555 #define del_XNV(p) free((char*)p)
557 #define new_XNV() (void*)new_xnv()
558 #define del_XNV(p) del_xnv(p)
562 #define new_XRV() (void*)safemalloc(sizeof(XRV))
563 #define del_XRV(p) free((char*)p)
565 #define new_XRV() (void*)new_xrv()
566 #define del_XRV(p) del_xrv(p)
570 #define new_XPV() (void*)safemalloc(sizeof(XPV))
571 #define del_XPV(p) free((char*)p)
573 #define new_XPV() (void*)new_xpv()
574 #define del_XPV(p) del_xpv(p)
577 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
578 #define del_XPVIV(p) free((char*)p)
580 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
581 #define del_XPVNV(p) free((char*)p)
583 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
584 #define del_XPVMG(p) free((char*)p)
586 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
587 #define del_XPVLV(p) free((char*)p)
589 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
590 #define del_XPVAV(p) free((char*)p)
592 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
593 #define del_XPVHV(p) free((char*)p)
595 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
596 #define del_XPVCV(p) free((char*)p)
598 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
599 #define del_XPVGV(p) free((char*)p)
601 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
602 #define del_XPVBM(p) free((char*)p)
604 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
605 #define del_XPVFM(p) free((char*)p)
607 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
608 #define del_XPVIO(p) free((char*)p)
623 if (SvTYPE(sv) == mt)
629 switch (SvTYPE(sv)) {
644 nv = (double)SvIVX(sv);
650 else if (mt < SVt_PVIV)
667 pv = (char*)SvRV(sv);
671 nv = (double)(unsigned long)pv;
687 else if (mt == SVt_NV)
698 del_XPVIV(SvANY(sv));
708 del_XPVNV(SvANY(sv));
718 del_XPVMG(SvANY(sv));
721 croak("Can't upgrade that kind of scalar");
726 croak("Can't upgrade to undef");
728 SvANY(sv) = new_XIV();
732 SvANY(sv) = new_XNV();
736 SvANY(sv) = new_XRV();
740 SvANY(sv) = new_XPV();
746 SvANY(sv) = new_XPVIV();
756 SvANY(sv) = new_XPVNV();
764 SvANY(sv) = new_XPVMG();
774 SvANY(sv) = new_XPVLV();
788 SvANY(sv) = new_XPVAV();
803 SvANY(sv) = new_XPVHV();
819 SvANY(sv) = new_XPVCV();
820 Zero(SvANY(sv), 1, XPVCV);
830 SvANY(sv) = new_XPVGV();
845 SvANY(sv) = new_XPVBM();
858 SvANY(sv) = new_XPVFM();
859 Zero(SvANY(sv), 1, XPVFM);
869 SvANY(sv) = new_XPVIO();
870 Zero(SvANY(sv), 1, XPVIO);
881 SvFLAGS(sv) &= ~SVTYPEMASK;
891 SV *t = sv_newmortal();
901 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
905 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
906 if (sv == &sv_undef) {
907 sv_catpv(t, "SV_UNDEF");
908 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
909 SVs_GMG|SVs_SMG|SVs_RMG)) &&
913 else if (sv == &sv_no) {
914 sv_catpv(t, "SV_NO");
915 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
916 SVs_GMG|SVs_SMG|SVs_RMG)) &&
917 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
924 sv_catpv(t, "SV_YES");
925 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
926 SVs_GMG|SVs_SMG|SVs_RMG)) &&
927 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
930 SvPVX(sv) && *SvPVX(sv) == '1' &&
936 else if (SvREFCNT(sv) == 0) {
942 if (SvCUR(t) + unref > 10) {
943 SvCUR(t) = unref + 3;
951 switch (SvTYPE(sv)) {
953 sv_catpv(t, "FREED");
957 sv_catpv(t, "UNDEF");
991 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1011 sv_catpv(t, "(null)");
1013 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1015 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1017 else if (SvNOKp(sv)) {
1018 SET_NUMERIC_STANDARD();
1019 sv_catpvf(t, "(%g)",SvNVX(sv));
1021 else if (SvIOKp(sv))
1022 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1041 char *s = SvPVX(sv);
1042 SvLEN(sv) += SvIVX(sv);
1043 SvPVX(sv) -= SvIVX(sv);
1045 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1047 SvFLAGS(sv) &= ~SVf_OOK;
1055 register I32 newlen;
1057 unsigned long newlen;
1062 #ifdef HAS_64K_LIMIT
1063 if (newlen >= 0x10000) {
1064 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1067 #endif /* HAS_64K_LIMIT */
1070 if (SvTYPE(sv) < SVt_PV) {
1071 sv_upgrade(sv, SVt_PV);
1074 else if (SvOOK(sv)) { /* pv is offset? */
1077 if (newlen > SvLEN(sv))
1078 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1082 if (newlen > SvLEN(sv)) { /* need more room? */
1084 Renew(s,newlen,char);
1086 New(703,s,newlen,char);
1088 SvLEN_set(sv, newlen);
1098 sv_check_thinkfirst(sv);
1099 switch (SvTYPE(sv)) {
1101 sv_upgrade(sv, SVt_IV);
1104 sv_upgrade(sv, SVt_PVNV);
1108 sv_upgrade(sv, SVt_PVIV);
1124 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1125 op_desc[op->op_type]);
1128 (void)SvIOK_only(sv); /* validate number */
1141 sv_setnv(sv, (double)u);
1149 sv_check_thinkfirst(sv);
1150 switch (SvTYPE(sv)) {
1153 sv_upgrade(sv, SVt_NV);
1159 sv_upgrade(sv, SVt_PVNV);
1166 (void)SvOOK_off(sv);
1181 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1182 op_name[op->op_type]);
1186 (void)SvNOK_only(sv); /* validate number */
1198 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1199 /* each *s can expand to 4 chars + "...\0",
1200 i.e. need room for 8 chars */
1202 for (s = SvPVX(sv); *s && d < limit; s++) {
1204 if (ch & 128 && !isPRINT_LC(ch)) {
1213 else if (ch == '\r') {
1217 else if (ch == '\f') {
1221 else if (ch == '\\') {
1225 else if (isPRINT_LC(ch))
1240 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1241 op_name[op->op_type]);
1243 warn("Argument \"%s\" isn't numeric", tmpbuf);
1252 if (SvGMAGICAL(sv)) {
1257 if (SvNVX(sv) < 0.0)
1258 return I_V(SvNVX(sv));
1260 return (IV) U_V(SvNVX(sv));
1262 if (SvPOKp(sv) && SvLEN(sv))
1265 dTHR; /* just for localizing */
1266 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1271 if (SvTHINKFIRST(sv)) {
1275 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1276 return SvIV(tmpstr);
1277 #endif /* OVERLOAD */
1278 return (IV)SvRV(sv);
1280 if (SvREADONLY(sv)) {
1282 if (SvNVX(sv) < 0.0)
1283 return I_V(SvNVX(sv));
1285 return (IV) U_V(SvNVX(sv));
1287 if (SvPOKp(sv) && SvLEN(sv))
1294 switch (SvTYPE(sv)) {
1296 sv_upgrade(sv, SVt_IV);
1299 sv_upgrade(sv, SVt_PVIV);
1302 sv_upgrade(sv, SVt_PVNV);
1307 if (SvNVX(sv) < 0.0)
1308 SvIVX(sv) = I_V(SvNVX(sv));
1310 SvUVX(sv) = U_V(SvNVX(sv));
1312 else if (SvPOKp(sv) && SvLEN(sv)) {
1314 SvIVX(sv) = asIV(sv);
1318 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1322 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1323 (unsigned long)sv,(long)SvIVX(sv)));
1333 if (SvGMAGICAL(sv)) {
1338 return U_V(SvNVX(sv));
1339 if (SvPOKp(sv) && SvLEN(sv))
1342 dTHR; /* just for localizing */
1343 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1348 if (SvTHINKFIRST(sv)) {
1352 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1353 return SvUV(tmpstr);
1354 #endif /* OVERLOAD */
1355 return (UV)SvRV(sv);
1357 if (SvREADONLY(sv)) {
1359 return U_V(SvNVX(sv));
1361 if (SvPOKp(sv) && SvLEN(sv))
1368 switch (SvTYPE(sv)) {
1370 sv_upgrade(sv, SVt_IV);
1373 sv_upgrade(sv, SVt_PVIV);
1376 sv_upgrade(sv, SVt_PVNV);
1381 SvUVX(sv) = U_V(SvNVX(sv));
1383 else if (SvPOKp(sv) && SvLEN(sv)) {
1385 SvUVX(sv) = asUV(sv);
1388 dTHR; /* just for localizing */
1389 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1393 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1394 (unsigned long)sv,SvUVX(sv)));
1404 if (SvGMAGICAL(sv)) {
1408 if (SvPOKp(sv) && SvLEN(sv)) {
1409 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1411 SET_NUMERIC_STANDARD();
1412 return atof(SvPVX(sv));
1415 return (double)SvIVX(sv);
1417 dTHR; /* just for localizing */
1418 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1423 if (SvTHINKFIRST(sv)) {
1427 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1428 return SvNV(tmpstr);
1429 #endif /* OVERLOAD */
1430 return (double)(unsigned long)SvRV(sv);
1432 if (SvREADONLY(sv)) {
1433 if (SvPOKp(sv) && SvLEN(sv)) {
1434 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1436 SET_NUMERIC_STANDARD();
1437 return atof(SvPVX(sv));
1440 return (double)SvIVX(sv);
1446 if (SvTYPE(sv) < SVt_NV) {
1447 if (SvTYPE(sv) == SVt_IV)
1448 sv_upgrade(sv, SVt_PVNV);
1450 sv_upgrade(sv, SVt_NV);
1451 DEBUG_c(SET_NUMERIC_STANDARD());
1452 DEBUG_c(PerlIO_printf(Perl_debug_log,
1453 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1455 else if (SvTYPE(sv) < SVt_PVNV)
1456 sv_upgrade(sv, SVt_PVNV);
1458 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1460 SvNVX(sv) = (double)SvIVX(sv);
1462 else if (SvPOKp(sv) && SvLEN(sv)) {
1463 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1465 SET_NUMERIC_STANDARD();
1466 SvNVX(sv) = atof(SvPVX(sv));
1470 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1475 DEBUG_c(SET_NUMERIC_STANDARD());
1476 DEBUG_c(PerlIO_printf(Perl_debug_log,
1477 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1485 I32 numtype = looks_like_number(sv);
1489 return atol(SvPVX(sv));
1490 if (!numtype && dowarn)
1492 SET_NUMERIC_STANDARD();
1493 d = atof(SvPVX(sv));
1504 I32 numtype = looks_like_number(sv);
1507 return atol(SvPVX(sv));
1508 if (!numtype && dowarn)
1510 SET_NUMERIC_STANDARD();
1511 return U_V(atof(SvPVX(sv)));
1515 looks_like_number(sv)
1519 register char *send;
1520 register char *sbegin;
1528 else if (SvPOKp(sv))
1529 sbegin = SvPV(sv, len);
1532 send = sbegin + len;
1537 if (*s == '+' || *s == '-')
1540 /* next must be digit or '.' */
1544 } while (isDIGIT(*s));
1547 while (isDIGIT(*s)) /* optional digits after "." */
1551 else if (*s == '.') {
1553 /* no digits before '.' means we need digits after it */
1557 } while (isDIGIT(*s));
1566 * we return 1 if the number can be converted to _integer_ with atol()
1567 * and 2 if you need (int)atof().
1571 /* we can have an optional exponent part */
1572 if (*s == 'e' || *s == 'E') {
1575 if (*s == '+' || *s == '-')
1580 } while (isDIGIT(*s));
1589 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1607 if (SvGMAGICAL(sv)) {
1614 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1619 SET_NUMERIC_STANDARD();
1620 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1625 dTHR; /* just for localizing */
1626 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1632 if (SvTHINKFIRST(sv)) {
1636 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1637 return SvPV(tmpstr,*lp);
1638 #endif /* OVERLOAD */
1643 switch (SvTYPE(sv)) {
1652 case SVt_PVMG: s = "SCALAR"; break;
1653 case SVt_PVLV: s = "LVALUE"; break;
1654 case SVt_PVAV: s = "ARRAY"; break;
1655 case SVt_PVHV: s = "HASH"; break;
1656 case SVt_PVCV: s = "CODE"; break;
1657 case SVt_PVGV: s = "GLOB"; break;
1658 case SVt_PVFM: s = "FORMATLINE"; break;
1659 case SVt_PVIO: s = "IO"; break;
1660 default: s = "UNKNOWN"; break;
1664 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1667 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1673 if (SvREADONLY(sv)) {
1675 SET_NUMERIC_STANDARD();
1676 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1681 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1691 if (!SvUPGRADE(sv, SVt_PV))
1694 if (SvTYPE(sv) < SVt_PVNV)
1695 sv_upgrade(sv, SVt_PVNV);
1698 olderrno = errno; /* some Xenix systems wipe out errno here */
1700 if (SvNVX(sv) == 0.0)
1701 (void)strcpy(s,"0");
1705 SET_NUMERIC_STANDARD();
1706 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1709 #ifdef FIXNEGATIVEZERO
1710 if (*s == '-' && s[1] == '0' && !s[2])
1719 else if (SvIOKp(sv)) {
1720 if (SvTYPE(sv) < SVt_PVIV)
1721 sv_upgrade(sv, SVt_PVIV);
1722 olderrno = errno; /* some Xenix systems wipe out errno here */
1723 sv_setpvf(sv, "%Vd", SvIVX(sv));
1729 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1734 *lp = s - SvPVX(sv);
1737 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1741 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1742 /* Sneaky stuff here */
1746 tsv = newSVpv(tokenbuf, 0);
1762 len = strlen(tokenbuf);
1764 #ifdef FIXNEGATIVEZERO
1765 if (len == 2 && t[0] == '-' && t[1] == '0') {
1770 (void)SvUPGRADE(sv, SVt_PV);
1772 s = SvGROW(sv, len + 1);
1780 /* This function is only called on magical items */
1795 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1796 return SvTRUE(tmpsv);
1798 #endif /* OVERLOAD */
1799 return SvRV(sv) != 0;
1802 register XPV* Xpvtmp;
1803 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1804 (*Xpvtmp->xpv_pv > '0' ||
1805 Xpvtmp->xpv_cur > 1 ||
1806 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1813 return SvIVX(sv) != 0;
1816 return SvNVX(sv) != 0.0;
1823 /* Note: sv_setsv() should not be called with a source string that needs
1824 * to be reused, since it may destroy the source string if it is marked
1834 register U32 sflags;
1840 sv_check_thinkfirst(dstr);
1843 stype = SvTYPE(sstr);
1844 dtype = SvTYPE(dstr);
1846 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1847 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1848 sv_setpvn(dstr, "", 0);
1849 (void)SvPOK_only(dstr);
1850 dtype = SvTYPE(dstr);
1855 #endif /* OVERLOAD */
1856 /* There's a lot of redundancy below but we're going for speed here */
1860 (void)SvOK_off(dstr);
1863 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1865 sv_upgrade(dstr, SVt_IV);
1866 else if (dtype == SVt_NV)
1867 sv_upgrade(dstr, SVt_PVNV);
1869 sv_upgrade(dstr, SVt_PVIV);
1873 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1875 sv_upgrade(dstr, SVt_NV);
1877 sv_upgrade(dstr, SVt_PVNV);
1882 sv_upgrade(dstr, SVt_RV);
1883 else if (dtype == SVt_PVGV &&
1884 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1887 if (curcop->cop_stash != GvSTASH(dstr))
1888 GvIMPORTED_on(dstr);
1898 sv_upgrade(dstr, SVt_PV);
1901 if (dtype < SVt_PVIV)
1902 sv_upgrade(dstr, SVt_PVIV);
1905 if (dtype < SVt_PVNV)
1906 sv_upgrade(dstr, SVt_PVNV);
1910 sv_upgrade(dstr, SVt_PVLV);
1918 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1919 op_name[op->op_type]);
1921 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1925 if (dtype <= SVt_PVGV) {
1927 if (dtype != SVt_PVGV) {
1928 char *name = GvNAME(sstr);
1929 STRLEN len = GvNAMELEN(sstr);
1930 sv_upgrade(dstr, SVt_PVGV);
1931 sv_magic(dstr, dstr, '*', name, len);
1932 GvSTASH(dstr) = GvSTASH(sstr);
1933 GvNAME(dstr) = savepvn(name, len);
1934 GvNAMELEN(dstr) = len;
1935 SvFAKE_on(dstr); /* can coerce to non-glob */
1937 /* ahem, death to those who redefine active sort subs */
1938 else if (curstack == sortstack
1939 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1940 croak("Can't redefine active sort subroutine %s",
1942 (void)SvOK_off(dstr);
1943 GvINTRO_off(dstr); /* one-shot flag */
1945 GvGP(dstr) = gp_ref(GvGP(sstr));
1947 if (curcop->cop_stash != GvSTASH(dstr))
1948 GvIMPORTED_on(dstr);
1955 if (SvGMAGICAL(sstr)) {
1957 if (SvTYPE(sstr) != stype) {
1958 stype = SvTYPE(sstr);
1959 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1964 sv_upgrade(dstr, stype);
1967 sflags = SvFLAGS(sstr);
1969 if (sflags & SVf_ROK) {
1970 if (dtype >= SVt_PV) {
1971 if (dtype == SVt_PVGV) {
1973 SV *sref = SvREFCNT_inc(SvRV(sstr));
1975 int intro = GvINTRO(dstr);
1979 GvGP(dstr)->gp_refcnt--;
1980 GvINTRO_off(dstr); /* one-shot flag */
1981 Newz(602,gp, 1, GP);
1982 GvGP(dstr) = gp_ref(gp);
1983 GvSV(dstr) = NEWSV(72,0);
1984 GvLINE(dstr) = curcop->cop_line;
1985 GvEGV(dstr) = (GV*)dstr;
1988 switch (SvTYPE(sref)) {
1991 SAVESPTR(GvAV(dstr));
1993 dref = (SV*)GvAV(dstr);
1994 GvAV(dstr) = (AV*)sref;
1995 if (curcop->cop_stash != GvSTASH(dstr))
1996 GvIMPORTED_AV_on(dstr);
2000 SAVESPTR(GvHV(dstr));
2002 dref = (SV*)GvHV(dstr);
2003 GvHV(dstr) = (HV*)sref;
2004 if (curcop->cop_stash != GvSTASH(dstr))
2005 GvIMPORTED_HV_on(dstr);
2009 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2010 SvREFCNT_dec(GvCV(dstr));
2011 GvCV(dstr) = Nullcv;
2012 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2015 SAVESPTR(GvCV(dstr));
2018 dref = (SV*)GvCV(dstr);
2019 if (GvCV(dstr) != (CV*)sref) {
2020 CV* cv = GvCV(dstr);
2022 if (!GvCVGEN((GV*)dstr) &&
2023 (CvROOT(cv) || CvXSUB(cv)))
2025 /* ahem, death to those who redefine
2026 * active sort subs */
2027 if (curstack == sortstack &&
2028 sortcop == CvSTART(cv))
2030 "Can't redefine active sort subroutine %s",
2031 GvENAME((GV*)dstr));
2032 if (cv_const_sv(cv))
2033 warn("Constant subroutine %s redefined",
2034 GvENAME((GV*)dstr));
2036 warn("Subroutine %s redefined",
2037 GvENAME((GV*)dstr));
2039 cv_ckproto(cv, (GV*)dstr,
2040 SvPOK(sref) ? SvPVX(sref) : Nullch);
2042 GvCV(dstr) = (CV*)sref;
2043 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2044 GvASSUMECV_on(dstr);
2047 if (curcop->cop_stash != GvSTASH(dstr))
2048 GvIMPORTED_CV_on(dstr);
2052 SAVESPTR(GvIOp(dstr));
2054 dref = (SV*)GvIOp(dstr);
2055 GvIOp(dstr) = (IO*)sref;
2059 SAVESPTR(GvSV(dstr));
2061 dref = (SV*)GvSV(dstr);
2063 if (curcop->cop_stash != GvSTASH(dstr))
2064 GvIMPORTED_SV_on(dstr);
2075 (void)SvOOK_off(dstr); /* backoff */
2076 Safefree(SvPVX(dstr));
2077 SvLEN(dstr)=SvCUR(dstr)=0;
2080 (void)SvOK_off(dstr);
2081 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2083 if (sflags & SVp_NOK) {
2085 SvNVX(dstr) = SvNVX(sstr);
2087 if (sflags & SVp_IOK) {
2088 (void)SvIOK_on(dstr);
2089 SvIVX(dstr) = SvIVX(sstr);
2092 if (SvAMAGIC(sstr)) {
2095 #endif /* OVERLOAD */
2097 else if (sflags & SVp_POK) {
2100 * Check to see if we can just swipe the string. If so, it's a
2101 * possible small lose on short strings, but a big win on long ones.
2102 * It might even be a win on short strings if SvPVX(dstr)
2103 * has to be allocated and SvPVX(sstr) has to be freed.
2106 if (SvTEMP(sstr) && /* slated for free anyway? */
2107 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2109 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2111 SvFLAGS(dstr) &= ~SVf_OOK;
2112 Safefree(SvPVX(dstr) - SvIVX(dstr));
2115 Safefree(SvPVX(dstr));
2117 (void)SvPOK_only(dstr);
2118 SvPV_set(dstr, SvPVX(sstr));
2119 SvLEN_set(dstr, SvLEN(sstr));
2120 SvCUR_set(dstr, SvCUR(sstr));
2122 (void)SvOK_off(sstr);
2123 SvPV_set(sstr, Nullch);
2128 else { /* have to copy actual string */
2129 STRLEN len = SvCUR(sstr);
2131 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2132 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2133 SvCUR_set(dstr, len);
2134 *SvEND(dstr) = '\0';
2135 (void)SvPOK_only(dstr);
2138 if (sflags & SVp_NOK) {
2140 SvNVX(dstr) = SvNVX(sstr);
2142 if (sflags & SVp_IOK) {
2143 (void)SvIOK_on(dstr);
2144 SvIVX(dstr) = SvIVX(sstr);
2147 else if (sflags & SVp_NOK) {
2148 SvNVX(dstr) = SvNVX(sstr);
2149 (void)SvNOK_only(dstr);
2151 (void)SvIOK_on(dstr);
2152 SvIVX(dstr) = SvIVX(sstr);
2155 else if (sflags & SVp_IOK) {
2156 (void)SvIOK_only(dstr);
2157 SvIVX(dstr) = SvIVX(sstr);
2160 (void)SvOK_off(dstr);
2166 sv_setpvn(sv,ptr,len)
2168 register const char *ptr;
2169 register STRLEN len;
2171 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2172 elicit a warning, but it won't hurt. */
2173 sv_check_thinkfirst(sv);
2178 if (SvTYPE(sv) >= SVt_PV) {
2179 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2182 else if (!sv_upgrade(sv, SVt_PV))
2184 SvGROW(sv, len + 1);
2185 Move(ptr,SvPVX(sv),len,char);
2188 (void)SvPOK_only(sv); /* validate pointer */
2195 register const char *ptr;
2197 register STRLEN len;
2199 sv_check_thinkfirst(sv);
2205 if (SvTYPE(sv) >= SVt_PV) {
2206 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2209 else if (!sv_upgrade(sv, SVt_PV))
2211 SvGROW(sv, len + 1);
2212 Move(ptr,SvPVX(sv),len+1,char);
2214 (void)SvPOK_only(sv); /* validate pointer */
2219 sv_usepvn(sv,ptr,len)
2222 register STRLEN len;
2224 sv_check_thinkfirst(sv);
2225 if (!SvUPGRADE(sv, SVt_PV))
2232 Safefree(SvPVX(sv));
2233 Renew(ptr, len+1, char);
2236 SvLEN_set(sv, len+1);
2238 (void)SvPOK_only(sv); /* validate pointer */
2243 sv_check_thinkfirst(sv)
2246 if (SvTHINKFIRST(sv)) {
2247 if (SvREADONLY(sv)) {
2249 if (curcop != &compiling)
2258 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2262 register STRLEN delta;
2264 if (!ptr || !SvPOKp(sv))
2266 sv_check_thinkfirst(sv);
2267 if (SvTYPE(sv) < SVt_PVIV)
2268 sv_upgrade(sv,SVt_PVIV);
2272 SvFLAGS(sv) |= SVf_OOK;
2274 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2275 delta = ptr - SvPVX(sv);
2283 sv_catpvn(sv,ptr,len)
2286 register STRLEN len;
2291 junk = SvPV_force(sv, tlen);
2292 SvGROW(sv, tlen + len + 1);
2295 Move(ptr,SvPVX(sv)+tlen,len,char);
2298 (void)SvPOK_only(sv); /* validate pointer */
2311 if (s = SvPV(sstr, len))
2312 sv_catpvn(dstr,s,len);
2320 register STRLEN len;
2326 junk = SvPV_force(sv, tlen);
2328 SvGROW(sv, tlen + len + 1);
2331 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2333 (void)SvPOK_only(sv); /* validate pointer */
2353 sv_upgrade(sv, SVt_PV);
2354 SvGROW(sv, len + 1);
2359 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2362 sv_magic(sv, obj, how, name, namlen)
2371 if (SvREADONLY(sv)) {
2373 if (curcop != &compiling && !strchr("gBf", how))
2376 if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
2377 if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
2384 if (!SvUPGRADE(sv, SVt_PVMG))
2387 Newz(702,mg, 1, MAGIC);
2388 mg->mg_moremagic = SvMAGIC(sv);
2391 if (!obj || obj == sv || how == '#')
2395 mg->mg_obj = SvREFCNT_inc(obj);
2396 mg->mg_flags |= MGf_REFCOUNTED;
2399 mg->mg_len = namlen;
2402 mg->mg_ptr = savepvn(name, namlen);
2403 else if (namlen == HEf_SVKEY) {
2404 dTHR; /* just for SvREFCNT_inc */
2405 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2410 mg->mg_virtual = &vtbl_sv;
2414 mg->mg_virtual = &vtbl_amagic;
2417 mg->mg_virtual = &vtbl_amagicelem;
2422 #endif /* OVERLOAD */
2424 mg->mg_virtual = &vtbl_bm;
2427 mg->mg_virtual = &vtbl_env;
2430 mg->mg_virtual = &vtbl_fm;
2433 mg->mg_virtual = &vtbl_envelem;
2436 mg->mg_virtual = &vtbl_mglob;
2439 mg->mg_virtual = &vtbl_isa;
2442 mg->mg_virtual = &vtbl_isaelem;
2445 mg->mg_virtual = &vtbl_nkeys;
2452 mg->mg_virtual = &vtbl_dbline;
2456 mg->mg_virtual = &vtbl_mutex;
2458 #endif /* USE_THREADS */
2459 #ifdef USE_LOCALE_COLLATE
2461 mg->mg_virtual = &vtbl_collxfrm;
2463 #endif /* USE_LOCALE_COLLATE */
2465 mg->mg_virtual = &vtbl_pack;
2469 mg->mg_virtual = &vtbl_packelem;
2472 mg->mg_virtual = &vtbl_sig;
2475 mg->mg_virtual = &vtbl_sigelem;
2478 mg->mg_virtual = &vtbl_taint;
2482 mg->mg_virtual = &vtbl_uvar;
2485 mg->mg_virtual = &vtbl_vec;
2488 mg->mg_virtual = &vtbl_substr;
2491 mg->mg_virtual = &vtbl_defelem;
2494 mg->mg_virtual = &vtbl_glob;
2497 mg->mg_virtual = &vtbl_arylen;
2500 mg->mg_virtual = &vtbl_pos;
2502 case '~': /* Reserved for use by extensions not perl internals. */
2503 /* Useful for attaching extension internal data to perl vars. */
2504 /* Note that multiple extensions may clash if magical scalars */
2505 /* etc holding private data from one are passed to another. */
2509 croak("Don't know how to handle magic of type '%c'", how);
2513 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2517 sv_unmagic(sv, type)
2523 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2526 for (mg = *mgp; mg; mg = *mgp) {
2527 if (mg->mg_type == type) {
2528 MGVTBL* vtbl = mg->mg_virtual;
2529 *mgp = mg->mg_moremagic;
2530 if (vtbl && vtbl->svt_free)
2531 (*vtbl->svt_free)(sv, mg);
2532 if (mg->mg_ptr && mg->mg_type != 'g')
2533 if (mg->mg_len >= 0)
2534 Safefree(mg->mg_ptr);
2535 else if (mg->mg_len == HEf_SVKEY)
2536 SvREFCNT_dec((SV*)mg->mg_ptr);
2537 if (mg->mg_flags & MGf_REFCOUNTED)
2538 SvREFCNT_dec(mg->mg_obj);
2542 mgp = &mg->mg_moremagic;
2546 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2553 sv_insert(bigstr,offset,len,little,littlelen)
2562 register char *midend;
2563 register char *bigend;
2567 croak("Can't modify non-existent substring");
2568 SvPV_force(bigstr, na);
2570 i = littlelen - len;
2571 if (i > 0) { /* string might grow */
2572 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2573 mid = big + offset + len;
2574 midend = bigend = big + SvCUR(bigstr);
2577 while (midend > mid) /* shove everything down */
2578 *--bigend = *--midend;
2579 Move(little,big+offset,littlelen,char);
2585 Move(little,SvPVX(bigstr)+offset,len,char);
2590 big = SvPVX(bigstr);
2593 bigend = big + SvCUR(bigstr);
2595 if (midend > bigend)
2596 croak("panic: sv_insert");
2598 if (mid - big > bigend - midend) { /* faster to shorten from end */
2600 Move(little, mid, littlelen,char);
2603 i = bigend - midend;
2605 Move(midend, mid, i,char);
2609 SvCUR_set(bigstr, mid - big);
2612 else if (i = mid - big) { /* faster from front */
2613 midend -= littlelen;
2615 sv_chop(bigstr,midend-i);
2620 Move(little, mid, littlelen,char);
2622 else if (littlelen) {
2623 midend -= littlelen;
2624 sv_chop(bigstr,midend);
2625 Move(little,midend,littlelen,char);
2628 sv_chop(bigstr,midend);
2633 /* make sv point to what nstr did */
2640 U32 refcnt = SvREFCNT(sv);
2641 sv_check_thinkfirst(sv);
2642 if (SvREFCNT(nsv) != 1)
2643 warn("Reference miscount in sv_replace()");
2644 if (SvMAGICAL(sv)) {
2648 sv_upgrade(nsv, SVt_PVMG);
2649 SvMAGIC(nsv) = SvMAGIC(sv);
2650 SvFLAGS(nsv) |= SvMAGICAL(sv);
2656 assert(!SvREFCNT(sv));
2657 StructCopy(nsv,sv,SV);
2658 SvREFCNT(sv) = refcnt;
2659 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2668 assert(SvREFCNT(sv) == 0);
2672 if (defstash) { /* Still have a symbol table? */
2678 SAVEFREESV(SvSTASH(sv));
2680 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2685 sv_upgrade(&ref, SVt_RV);
2686 SvRV(&ref) = SvREFCNT_inc(sv);
2688 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2689 creating+destructing a ref
2690 leads to disaster. */
2696 perl_call_sv((SV*)GvCV(destructor),
2697 G_DISCARD|G_EVAL|G_KEEPERR);
2698 del_XRV(SvANY(&ref));
2705 SvREFCNT_dec(SvSTASH(sv));
2707 SvOBJECT_off(sv); /* Curse the object. */
2708 if (SvTYPE(sv) != SVt_PVIO)
2709 --sv_objcount; /* XXX Might want something more general */
2714 && (ret = perl_get_sv("DB::ret", FALSE))
2715 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2716 /* Debugger is prone to dangling references. */
2723 croak("DESTROY created new reference to dead object");
2724 /* DESTROY gave object new lease on life */
2729 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2731 switch (SvTYPE(sv)) {
2733 if (IoIFP(sv) != PerlIO_stdin() &&
2734 IoIFP(sv) != PerlIO_stdout() &&
2735 IoIFP(sv) != PerlIO_stderr())
2737 Safefree(IoTOP_NAME(sv));
2738 Safefree(IoFMT_NAME(sv));
2739 Safefree(IoBOTTOM_NAME(sv));
2755 Safefree(GvNAME(sv));
2762 (void)SvOOK_off(sv);
2767 SvREFCNT_dec(SvRV(sv));
2768 else if (SvPVX(sv) && SvLEN(sv))
2769 Safefree(SvPVX(sv));
2779 switch (SvTYPE(sv)) {
2795 del_XPVIV(SvANY(sv));
2798 del_XPVNV(SvANY(sv));
2801 del_XPVMG(SvANY(sv));
2804 del_XPVLV(SvANY(sv));
2807 del_XPVAV(SvANY(sv));
2810 del_XPVHV(SvANY(sv));
2813 del_XPVCV(SvANY(sv));
2816 del_XPVGV(SvANY(sv));
2819 del_XPVBM(SvANY(sv));
2822 del_XPVFM(SvANY(sv));
2825 del_XPVIO(SvANY(sv));
2828 SvFLAGS(sv) &= SVf_BREAK;
2829 SvFLAGS(sv) |= SVTYPEMASK;
2847 if (SvREADONLY(sv)) {
2848 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2851 if (SvREFCNT(sv) == 0) {
2852 if (SvFLAGS(sv) & SVf_BREAK)
2854 if (in_clean_all) /* All is fair */
2856 warn("Attempt to free unreferenced scalar");
2859 if (--SvREFCNT(sv) > 0)
2863 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2885 junk = SvPV(sv, len);
2904 pv1 = SvPV(str1, cur1);
2909 pv2 = SvPV(str2, cur2);
2914 return memEQ(pv1, pv2, cur1);
2923 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2925 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2929 return cur2 ? -1 : 0;
2934 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2937 return retval < 0 ? -1 : 1;
2942 return cur1 < cur2 ? -1 : 1;
2946 sv_cmp_locale(sv1, sv2)
2950 #ifdef USE_LOCALE_COLLATE
2956 if (collation_standard)
2960 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2962 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2964 if (!pv1 || !len1) {
2975 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2978 return retval < 0 ? -1 : 1;
2981 * When the result of collation is equality, that doesn't mean
2982 * that there are no differences -- some locales exclude some
2983 * characters from consideration. So to avoid false equalities,
2984 * we use the raw string as a tiebreaker.
2990 #endif /* USE_LOCALE_COLLATE */
2992 return sv_cmp(sv1, sv2);
2995 #ifdef USE_LOCALE_COLLATE
2997 * Any scalar variable may carry an 'o' magic that contains the
2998 * scalar data of the variable transformed to such a format that
2999 * a normal memory comparison can be used to compare the data
3000 * according to the locale settings.
3003 sv_collxfrm(sv, nxp)
3009 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3010 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3015 Safefree(mg->mg_ptr);
3017 if ((xf = mem_collxfrm(s, len, &xlen))) {
3018 if (SvREADONLY(sv)) {
3024 sv_magic(sv, 0, 'o', 0, 0);
3025 mg = mg_find(sv, 'o');
3038 if (mg && mg->mg_ptr) {
3040 return mg->mg_ptr + sizeof(collation_ix);
3048 #endif /* USE_LOCALE_COLLATE */
3051 sv_gets(sv,fp,append)
3053 register PerlIO *fp;
3058 register STDCHAR rslast;
3059 register STDCHAR *bp;
3063 sv_check_thinkfirst(sv);
3064 if (!SvUPGRADE(sv, SVt_PV))
3072 else if (RsPARA(rs)) {
3077 rsptr = SvPV(rs, rslen);
3078 rslast = rslen ? rsptr[rslen - 1] : '\0';
3080 if (RsPARA(rs)) { /* have to do this both before and after */
3081 do { /* to make sure file boundaries work right */
3084 i = PerlIO_getc(fp);
3088 PerlIO_ungetc(fp,i);
3094 /* See if we know enough about I/O mechanism to cheat it ! */
3096 /* This used to be #ifdef test - it is made run-time test for ease
3097 of abstracting out stdio interface. One call should be cheap
3098 enough here - and may even be a macro allowing compile
3102 if (PerlIO_fast_gets(fp)) {
3105 * We're going to steal some values from the stdio struct
3106 * and put EVERYTHING in the innermost loop into registers.
3108 register STDCHAR *ptr;
3112 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3113 /* An ungetc()d char is handled separately from the regular
3114 * buffer, so we getc() it back out and stuff it in the buffer.
3116 i = PerlIO_getc(fp);
3117 if (i == EOF) return 0;
3118 *(--((*fp)->_ptr)) = (unsigned char) i;
3122 /* Here is some breathtakingly efficient cheating */
3124 cnt = PerlIO_get_cnt(fp); /* get count into register */
3125 (void)SvPOK_only(sv); /* validate pointer */
3126 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3127 if (cnt > 80 && SvLEN(sv) > append) {
3128 shortbuffered = cnt - SvLEN(sv) + append + 1;
3129 cnt -= shortbuffered;
3133 /* remember that cnt can be negative */
3134 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3139 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3140 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3141 DEBUG_P(PerlIO_printf(Perl_debug_log,
3142 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3143 DEBUG_P(PerlIO_printf(Perl_debug_log,
3144 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3145 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3146 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3151 while (cnt > 0) { /* this | eat */
3153 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3154 goto thats_all_folks; /* screams | sed :-) */
3158 Copy(ptr, bp, cnt, char); /* this | eat */
3159 bp += cnt; /* screams | dust */
3160 ptr += cnt; /* louder | sed :-) */
3165 if (shortbuffered) { /* oh well, must extend */
3166 cnt = shortbuffered;
3168 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3170 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3171 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3175 DEBUG_P(PerlIO_printf(Perl_debug_log,
3176 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3177 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3178 DEBUG_P(PerlIO_printf(Perl_debug_log,
3179 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3180 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3181 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3182 /* This used to call 'filbuf' in stdio form, but as that behaves like
3183 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3184 another abstraction. */
3185 i = PerlIO_getc(fp); /* get more characters */
3186 DEBUG_P(PerlIO_printf(Perl_debug_log,
3187 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3188 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3189 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3190 cnt = PerlIO_get_cnt(fp);
3191 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3192 DEBUG_P(PerlIO_printf(Perl_debug_log,
3193 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3195 if (i == EOF) /* all done for ever? */
3196 goto thats_really_all_folks;
3198 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3200 SvGROW(sv, bpx + cnt + 2);
3201 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3203 *bp++ = i; /* store character from PerlIO_getc */
3205 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3206 goto thats_all_folks;
3210 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3211 memNE((char*)bp - rslen, rsptr, rslen))
3212 goto screamer; /* go back to the fray */
3213 thats_really_all_folks:
3215 cnt += shortbuffered;
3216 DEBUG_P(PerlIO_printf(Perl_debug_log,
3217 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3218 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3219 DEBUG_P(PerlIO_printf(Perl_debug_log,
3220 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3221 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3222 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3224 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3225 DEBUG_P(PerlIO_printf(Perl_debug_log,
3226 "Screamer: done, len=%d, string=|%.*s|\n",
3227 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3231 /*The big, slow, and stupid way */
3236 register STDCHAR *bpe = buf + sizeof(buf);
3238 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3239 ; /* keep reading */
3243 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3244 /* Accomodate broken VAXC compiler, which applies U8 cast to
3245 * both args of ?: operator, causing EOF to change into 255
3247 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3251 sv_catpvn(sv, (char *) buf, cnt);
3253 sv_setpvn(sv, (char *) buf, cnt);
3255 if (i != EOF && /* joy */
3257 SvCUR(sv) < rslen ||
3258 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3262 * If we're reading from a TTY and we get a short read,
3263 * indicating that the user hit his EOF character, we need
3264 * to notice it now, because if we try to read from the TTY
3265 * again, the EOF condition will disappear.
3267 * The comparison of cnt to sizeof(buf) is an optimization
3268 * that prevents unnecessary calls to feof().
3272 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3277 if (RsPARA(rs)) { /* have to do this both before and after */
3278 while (i != EOF) { /* to make sure file boundaries work right */
3279 i = PerlIO_getc(fp);
3281 PerlIO_ungetc(fp,i);
3287 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3300 if (SvTHINKFIRST(sv)) {
3301 if (SvREADONLY(sv)) {
3303 if (curcop != &compiling)
3308 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3309 #endif /* OVERLOAD */
3315 flags = SvFLAGS(sv);
3316 if (flags & SVp_NOK) {
3317 (void)SvNOK_only(sv);
3321 if (flags & SVp_IOK) {
3322 if (SvIVX(sv) == IV_MAX)
3323 sv_setnv(sv, (double)IV_MAX + 1.0);
3325 (void)SvIOK_only(sv);
3330 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3331 if ((flags & SVTYPEMASK) < SVt_PVNV)
3332 sv_upgrade(sv, SVt_NV);
3334 (void)SvNOK_only(sv);
3338 while (isALPHA(*d)) d++;
3339 while (isDIGIT(*d)) d++;
3341 SET_NUMERIC_STANDARD();
3342 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3346 while (d >= SvPVX(sv)) {
3356 *(d--) -= 'z' - 'a' + 1;
3359 /* oh,oh, the number grew */
3360 SvGROW(sv, SvCUR(sv) + 2);
3362 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3378 if (SvTHINKFIRST(sv)) {
3379 if (SvREADONLY(sv)) {
3381 if (curcop != &compiling)
3386 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3387 #endif /* OVERLOAD */
3393 flags = SvFLAGS(sv);
3394 if (flags & SVp_NOK) {
3396 (void)SvNOK_only(sv);
3399 if (flags & SVp_IOK) {
3400 if (SvIVX(sv) == IV_MIN)
3401 sv_setnv(sv, (double)IV_MIN - 1.0);
3403 (void)SvIOK_only(sv);
3408 if (!(flags & SVp_POK)) {
3409 if ((flags & SVTYPEMASK) < SVt_PVNV)
3410 sv_upgrade(sv, SVt_NV);
3412 (void)SvNOK_only(sv);
3415 SET_NUMERIC_STANDARD();
3416 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3419 /* Make a string that will exist for the duration of the expression
3420 * evaluation. Actually, it may have to last longer than that, but
3421 * hopefully we won't free it until it has been assigned to a
3422 * permanent location. */
3428 tmps_max += (tmps_max < 512) ? 128 : 512;
3429 Renew(tmps_stack, tmps_max, SV*);
3433 sv_mortalcopy(oldstr)
3443 sv_setsv(sv,oldstr);
3444 if (++tmps_ix >= tmps_max)
3446 tmps_stack[tmps_ix] = sv;
3460 SvFLAGS(sv) = SVs_TEMP;
3461 if (++tmps_ix >= tmps_max)
3463 tmps_stack[tmps_ix] = sv;
3467 /* same thing without the copying */
3476 if (SvREADONLY(sv) && curcop != &compiling)
3478 if (++tmps_ix >= tmps_max)
3480 tmps_stack[tmps_ix] = sv;
3498 sv_setpvn(sv,s,len);
3504 newSVpvf(const char* pat, ...)
3508 newSVpvf(pat, va_alist)
3521 va_start(args, pat);
3525 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3570 sv_upgrade(sv, SVt_RV);
3572 SvRV(sv) = SvREFCNT_inc(ref);
3588 #endif /* CRIPPLED_CC */
3590 /* make an exact duplicate of old */
3600 if (SvTYPE(old) == SVTYPEMASK) {
3601 warn("semi-panic: attempt to dup freed string");
3631 if (!*s) { /* reset ?? searches */
3632 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3633 pm->op_pmflags &= ~PMf_USED;
3638 /* reset variables */
3640 if (!HvARRAY(stash))
3643 Zero(todo, 256, char);
3650 for ( ; i <= max; i++) {
3653 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3654 for (entry = HvARRAY(stash)[i];
3656 entry = HeNEXT(entry)) {
3657 if (!todo[(U8)*HeKEY(entry)])
3659 gv = (GV*)HeVAL(entry);
3662 if (SvTYPE(sv) >= SVt_PV) {
3664 if (SvPVX(sv) != Nullch)
3671 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3673 #ifndef VMS /* VMS has no environ array */
3675 environ[0] = Nullch;
3690 switch (SvTYPE(sv)) {
3698 croak("Bad filehandle: %s", GvNAME(gv));
3702 croak(no_usym, "filehandle");
3704 return sv_2io(SvRV(sv));
3705 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3711 croak("Bad filehandle: %s", SvPV(sv,na));
3718 sv_2cv(sv, st, gvp, lref)
3728 return *gvp = Nullgv, Nullcv;
3729 switch (SvTYPE(sv)) {
3749 if (SvTYPE(cv) != SVt_PVCV)
3750 croak("Not a subroutine reference");
3758 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3764 if (lref && !GvCVu(gv)) {
3767 tmpsv = NEWSV(704,0);
3768 gv_efullname3(tmpsv, gv, Nullch);
3769 newSUB(start_subparse(FALSE, 0),
3770 newSVOP(OP_CONST, 0, tmpsv),
3775 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3792 if ((Xpv = (XPV*)SvANY(sv)) &&
3793 (*Xpv->xpv_pv > '0' ||
3795 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3802 return SvIVX(sv) != 0;
3805 return SvNVX(sv) != 0.0;
3807 return sv_2bool(sv);
3811 #endif /* !SvTRUE */
3856 return sv_2pv(sv, lp);
3861 sv_pvn_force(sv, lp)
3867 if (SvREADONLY(sv)) {
3869 if (curcop != &compiling)
3877 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3878 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3885 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3886 op_name[op->op_type]);
3891 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3896 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3897 SvGROW(sv, len + 1);
3898 Move(s,SvPVX(sv),len,char);
3903 SvPOK_on(sv); /* validate pointer */
3905 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3906 (unsigned long)sv,SvPVX(sv)));
3917 if (ob && SvOBJECT(sv))
3918 return HvNAME(SvSTASH(sv));
3920 switch (SvTYPE(sv)) {
3934 case SVt_PVLV: return "LVALUE";
3935 case SVt_PVAV: return "ARRAY";
3936 case SVt_PVHV: return "HASH";
3937 case SVt_PVCV: return "CODE";
3938 case SVt_PVGV: return "GLOB";
3939 case SVt_PVFM: return "FORMLINE";
3940 default: return "UNKNOWN";
3976 return strEQ(HvNAME(SvSTASH(sv)), name);
3980 newSVrv(rv, classname)
3991 sv_upgrade(rv, SVt_RV);
3992 SvRV(rv) = SvREFCNT_inc(sv);
3996 HV* stash = gv_stashpv(classname, TRUE);
3997 (void)sv_bless(rv, stash);
4003 sv_setref_pv(rv, classname, pv)
4009 sv_setsv(rv, &sv_undef);
4011 sv_setiv(newSVrv(rv,classname), (IV)pv);
4016 sv_setref_iv(rv, classname, iv)
4021 sv_setiv(newSVrv(rv,classname), iv);
4026 sv_setref_nv(rv, classname, nv)
4031 sv_setnv(newSVrv(rv,classname), nv);
4036 sv_setref_pvn(rv, classname, pv, n)
4042 sv_setpvn(newSVrv(rv,classname), pv, n);
4047 sv_bless3(sv,stash,zaptilde)
4055 croak("Can't bless non-reference value");
4057 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4058 if (SvREADONLY(ref))
4060 if (SvOBJECT(ref)) {
4061 if (SvTYPE(ref) != SVt_PVIO)
4063 if (zaptilde && SvRMAGICAL(ref))
4064 sv_unmagic(ref, '~'); /* stop cross-class pointer forgery */
4065 SvREFCNT_dec(SvSTASH(ref));
4069 if (SvTYPE(ref) != SVt_PVIO)
4071 (void)SvUPGRADE(ref, SVt_PVMG);
4072 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4079 #endif /* OVERLOAD */
4089 return sv_bless3(sv, stash, FALSE);
4096 assert(SvTYPE(sv) == SVt_PVGV);
4100 sv_unmagic(sv, '*');
4101 Safefree(GvNAME(sv));
4103 SvFLAGS(sv) &= ~SVTYPEMASK;
4104 SvFLAGS(sv) |= SVt_PVMG;
4115 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4118 sv_2mortal(rv); /* Schedule for freeing later */
4125 sv_magic((sv), Nullsv, 't', Nullch, 0);
4132 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4133 MAGIC *mg = mg_find(sv, 't');
4143 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4144 MAGIC *mg = mg_find(sv, 't');
4145 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4153 sv_setpvf(SV *sv, const char* pat, ...)
4157 sv_setpvf(sv, pat, va_alist)
4165 va_start(args, pat);
4169 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4175 sv_catpvf(SV *sv, const char* pat, ...)
4179 sv_catpvf(sv, pat, va_alist)
4187 va_start(args, pat);
4191 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4196 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4205 sv_setpvn(sv, "", 0);
4206 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4210 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4225 static char nullstr[] = "(null)";
4227 /* no matter what, this is a string now */
4228 (void)SvPV_force(sv, origlen);
4230 /* special-case "", "%s", and "%_" */
4233 if (patlen == 2 && pat[0] == '%') {
4237 char *s = va_arg(*args, char*);
4238 sv_catpv(sv, s ? s : nullstr);
4240 else if (svix < svmax)
4241 sv_catsv(sv, *svargs);
4245 sv_catsv(sv, va_arg(*args, SV*));
4248 /* See comment on '_' below */
4253 patend = (char*)pat + patlen;
4254 for (p = (char*)pat; p < patend; p = q) {
4262 bool has_precis = FALSE;
4266 STRLEN esignlen = 0;
4268 char *eptr = Nullch;
4270 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4272 static char *efloatbuf = Nullch;
4273 static STRLEN efloatsize = 0;
4285 for (q = p; q < patend && *q != '%'; ++q) ;
4287 sv_catpvn(sv, p, q - p);
4325 case '1': case '2': case '3':
4326 case '4': case '5': case '6':
4327 case '7': case '8': case '9':
4330 width = width * 10 + (*q++ - '0');
4335 i = va_arg(*args, int);
4337 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4339 width = (i < 0) ? -i : i;
4350 i = va_arg(*args, int);
4352 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4353 precis = (i < 0) ? 0 : i;
4359 precis = precis * 10 + (*q++ - '0');
4368 #if 0 /* when quads have better support within Perl */
4369 if (*(q + 1) == 'l') {
4395 c = va_arg(*args, int);
4397 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4404 eptr = va_arg(*args, char*);
4406 elen = strlen(eptr);
4409 elen = sizeof nullstr - 1;
4412 else if (svix < svmax)
4413 eptr = SvPVx(svargs[svix++], elen);
4418 * The "%_" hack might have to be changed someday,
4419 * if ISO or ANSI decide to use '_' for something.
4420 * So we keep it hidden from users' code.
4424 eptr = SvPVx(va_arg(*args, SV*), elen);
4427 if (has_precis && elen > precis)
4435 uv = (UV)va_arg(*args, void*);
4437 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4448 case 'h': iv = (short)va_arg(*args, int); break;
4449 default: iv = va_arg(*args, int); break;
4450 case 'l': iv = va_arg(*args, long); break;
4451 case 'V': iv = va_arg(*args, IV); break;
4455 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4457 case 'h': iv = (short)iv; break;
4458 default: iv = (int)iv; break;
4459 case 'l': iv = (long)iv; break;
4466 esignbuf[esignlen++] = plus;
4470 esignbuf[esignlen++] = '-';
4496 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4497 default: uv = va_arg(*args, unsigned); break;
4498 case 'l': uv = va_arg(*args, unsigned long); break;
4499 case 'V': uv = va_arg(*args, UV); break;
4503 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4505 case 'h': uv = (unsigned short)uv; break;
4506 default: uv = (unsigned)uv; break;
4507 case 'l': uv = (unsigned long)uv; break;
4513 eptr = ebuf + sizeof ebuf;
4517 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4523 esignbuf[esignlen++] = '0';
4524 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4530 *--eptr = '0' + dig;
4532 if (alt && *eptr != '0')
4535 default: /* it had better be ten or less */
4538 *--eptr = '0' + dig;
4539 } while (uv /= base);
4542 elen = (ebuf + sizeof ebuf) - eptr;
4543 if (has_precis && precis > elen)
4544 zeros = precis - elen;
4547 /* FLOATING POINT */
4550 c = 'f'; /* maybe %F isn't supported here */
4556 /* This is evil, but floating point is even more evil */
4559 nv = va_arg(*args, double);
4561 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4564 if (c != 'e' && c != 'E') {
4566 (void)frexp(nv, &i);
4567 if (i == PERL_INT_MIN)
4568 die("panic: frexp");
4570 need = BIT_DIGITS(i);
4572 need += has_precis ? precis : 6; /* known default */
4576 need += 20; /* fudge factor */
4577 if (efloatsize < need) {
4578 Safefree(efloatbuf);
4579 efloatsize = need + 20; /* more fudge */
4580 New(906, efloatbuf, efloatsize, char);
4583 eptr = ebuf + sizeof ebuf;
4588 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4593 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4603 (void)sprintf(efloatbuf, eptr, nv);
4606 elen = strlen(efloatbuf);
4610 * User-defined locales may include arbitrary characters.
4611 * And, unfortunately, some system may alloc the "C" locale
4612 * to be overridden by a malicious user.
4615 *used_locale = TRUE;
4616 #endif /* LC_NUMERIC */
4623 i = SvCUR(sv) - origlen;
4626 case 'h': *(va_arg(*args, short*)) = i; break;
4627 default: *(va_arg(*args, int*)) = i; break;
4628 case 'l': *(va_arg(*args, long*)) = i; break;
4629 case 'V': *(va_arg(*args, IV*)) = i; break;
4632 else if (svix < svmax)
4633 sv_setuv(svargs[svix++], (UV)i);
4634 continue; /* not "break" */
4640 if (!args && dowarn &&
4641 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4642 SV *msg = sv_newmortal();
4643 sv_setpvf(msg, "Invalid conversion in %s: ",
4644 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4646 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4649 sv_catpv(msg, "end of string");
4650 warn("%_", msg); /* yes, this is reentrant */
4652 /* output mangled stuff */
4658 have = esignlen + zeros + elen;
4659 need = (have > width ? have : width);
4662 SvGROW(sv, SvLEN(sv) + need);
4664 if (esignlen && fill == '0') {
4665 for (i = 0; i < esignlen; i++)
4669 memset(p, fill, gap);
4672 if (esignlen && fill != '0') {
4673 for (i = 0; i < esignlen; i++)
4677 for (i = zeros; i; i--)
4681 memcpy(p, eptr, elen);
4685 memset(p, ' ', gap);
4689 SvCUR(sv) = p - SvPVX(sv);
4698 SV *d = sv_newmortal();
4704 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4708 flags = SvFLAGS(sv);
4711 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4712 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4713 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4714 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4715 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4716 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4717 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4718 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4719 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4720 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4722 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4723 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4724 if (flags & SVf_POK) sv_catpv(d, "POK,");
4725 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4726 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4727 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4728 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4731 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4732 #endif /* OVERLOAD */
4733 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4734 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4735 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4736 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4741 if (CvANON(sv)) sv_catpv(d, "ANON,");
4742 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4743 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4744 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4745 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4748 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4749 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4752 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4753 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4754 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4755 if (GvIMPORTED(sv)) {
4756 sv_catpv(d, "IMPORT");
4757 if (GvIMPORTED(sv) == GVf_IMPORTED)
4758 sv_catpv(d, "ALL,");
4761 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4762 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4763 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4764 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4770 if (*(SvEND(d) - 1) == ',')
4771 SvPVX(d)[--SvCUR(d)] = '\0';
4775 PerlIO_printf(Perl_debug_log, "SV = ");
4778 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4781 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4784 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4787 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4790 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4793 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4796 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4799 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4802 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4805 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4808 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4811 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4814 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4817 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4820 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4823 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4826 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4829 if (type >= SVt_PVIV || type == SVt_IV)
4830 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4831 if (type >= SVt_PVNV || type == SVt_NV) {
4832 SET_NUMERIC_STANDARD();
4833 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4836 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4842 if (type <= SVt_PVLV) {
4844 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4845 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4847 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4849 if (type >= SVt_PVMG) {
4851 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4854 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4858 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4859 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4860 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4861 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4862 sv_dump(LvTARG(sv));
4865 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4866 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4867 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4868 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4869 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4870 flags = AvFLAGS(sv);
4872 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4873 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4874 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4875 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4876 SvCUR(d) ? SvPVX(d) + 1 : "");
4879 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4880 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4881 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4882 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4883 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4884 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4886 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4888 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4892 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4895 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4896 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4897 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4898 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4899 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4900 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4901 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4902 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4904 PerlIO_printf(Perl_debug_log, "\n");
4906 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4907 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4908 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4909 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4911 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4912 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4913 #endif /* USE_THREADS */
4914 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
4915 (unsigned long)CvFLAGS(sv));
4916 if (type == SVt_PVFM)
4917 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4920 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4921 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4922 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4923 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4924 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4925 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4926 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4927 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4928 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4929 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4930 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4931 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4932 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4933 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4934 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4935 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4938 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4939 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4940 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4941 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4942 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4943 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4944 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4945 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4946 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4947 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4948 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4949 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4950 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4951 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4952 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4953 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));