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 MUTEX_LOCK(&sv_mutex); \
69 (p) = (SV*)safemalloc(sizeof(SV)); \
71 MUTEX_UNLOCK(&sv_mutex); \
76 MUTEX_LOCK(&sv_mutex); \
79 MUTEX_UNLOCK(&sv_mutex); \
85 #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
87 #define REG_REPLACE(sv,a,b) \
89 void* p = sv->sv_any; \
90 I32 h = REGHASH(sv, regsize); \
92 while (registry[i] != (a)) { \
96 die("SV registry bug"); \
101 #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
102 #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
108 if (sv_count >= (regsize >> 1))
110 SV **oldreg = registry;
111 I32 oldsize = regsize;
113 regsize = regsize ? ((regsize << 2) + 1) : 2037;
114 registry = (SV**)safemalloc(regsize * sizeof(SV*));
115 memzero(registry, regsize * sizeof(SV*));
120 for (i = 0; i < oldsize; ++i) {
121 SV* oldsv = oldreg[i];
147 for (i = 0; i < regsize; ++i) {
148 SV* sv = registry[i];
155 sv_add_arena(ptr, size, flags)
160 if (!(flags & SVf_FAKE))
167 * "A time to plant, and a time to uproot what was planted..."
170 #define plant_SV(p) \
172 SvANY(p) = (void *)sv_root; \
173 SvFLAGS(p) = SVTYPEMASK; \
178 /* sv_mutex must be held while calling uproot_SV() */
179 #define uproot_SV(p) \
182 sv_root = (SV*)SvANY(p); \
186 #define new_SV(p) do { \
187 MUTEX_LOCK(&sv_mutex); \
192 MUTEX_UNLOCK(&sv_mutex); \
197 #define del_SV(p) do { \
198 MUTEX_LOCK(&sv_mutex); \
203 MUTEX_UNLOCK(&sv_mutex); \
215 for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
217 svend = &sva[SvREFCNT(sva)];
218 if (p >= sv && p < svend)
222 warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
229 #else /* ! DEBUGGING */
231 #define del_SV(p) plant_SV(p)
233 #endif /* DEBUGGING */
236 sv_add_arena(ptr, size, flags)
244 Zero(sva, size, char);
246 /* The first SV in an arena isn't an SV. */
247 SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */
248 SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
249 SvFLAGS(sva) = flags; /* FAKE if not to be freed */
254 svend = &sva[SvREFCNT(sva) - 1];
257 SvANY(sv) = (void *)(SV*)(sv + 1);
258 SvFLAGS(sv) = SVTYPEMASK;
262 SvFLAGS(sv) = SVTYPEMASK;
265 /* sv_mutex must be held while calling more_sv() */
272 sv_add_arena(nice_chunk, nice_chunk_size, 0);
276 char *chunk; /* must use New here to match call to */
277 New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
278 sv_add_arena(chunk, 1008, 0);
292 for (sva = sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
293 svend = &sva[SvREFCNT(sva)];
294 for (sv = sva + 1; sv < svend; ++sv) {
295 if (SvTYPE(sv) != SVTYPEMASK)
307 if (SvTYPE(sv) != SVTYPEMASK) {
308 /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
309 PerlIO_printf(PerlIO_stderr(), "****\n");
317 visit(do_report_used);
326 if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
327 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
333 /* XXX Might want to check arrays, etc. */
336 #ifndef DISABLE_DESTRUCTOR_KLUDGE
338 do_clean_named_objs(sv)
341 if (SvTYPE(sv) == SVt_PVGV && GvSV(sv))
342 do_clean_objs(GvSV(sv));
346 static bool in_clean_objs = FALSE;
351 in_clean_objs = TRUE;
352 #ifndef DISABLE_DESTRUCTOR_KLUDGE
353 visit(do_clean_named_objs);
355 visit(do_clean_objs);
356 in_clean_objs = FALSE;
363 DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops:\n "), sv_dump(sv));)
364 SvFLAGS(sv) |= SVf_BREAK;
368 static bool in_clean_all = FALSE;
375 in_clean_all = FALSE;
384 /* Free arenas here, but be careful about fake ones. (We assume
385 contiguity of the fake ones with the corresponding real ones.) */
387 for (sva = sv_arenaroot; sva; sva = svanext) {
388 svanext = (SV*) SvANY(sva);
389 while (svanext && SvFAKE(svanext))
390 svanext = (SV*) SvANY(svanext);
393 Safefree((void *)sva);
407 * See comment in more_xiv() -- RAM.
409 xiv_root = (IV**)*xiv;
410 return (XPVIV*)((char*)xiv - sizeof(XPV));
419 IV** xiv = (IV**)((char*)(p) + sizeof(XPV));
420 *xiv = (IV *)xiv_root;
428 register IV** xivend;
429 XPV* ptr = (XPV*)safemalloc(1008);
430 ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */
431 xiv_arenaroot = ptr; /* to keep Purify happy */
434 xivend = &xiv[1008 / sizeof(IV *) - 1];
435 xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */
437 while (xiv < xivend) {
438 *xiv = (IV *)(xiv + 1);
451 xnv_root = *(double**)xnv;
452 return (XPVNV*)((char*)xnv - sizeof(XPVIV));
461 double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
462 *(double**)xnv = xnv_root;
469 register double* xnv;
470 register double* xnvend;
471 xnv = (double*)safemalloc(1008);
472 xnvend = &xnv[1008 / sizeof(double) - 1];
473 xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
475 while (xnv < xnvend) {
476 *(double**)xnv = (double*)(xnv + 1);
489 xrv_root = (XRV*)xrv->xrv_rv;
499 p->xrv_rv = (SV*)xrv_root;
507 register XRV* xrvend;
508 xrv_root = (XRV*)safemalloc(1008);
510 xrvend = &xrv[1008 / sizeof(XRV) - 1];
511 while (xrv < xrvend) {
512 xrv->xrv_rv = (SV*)(xrv + 1);
525 xpv_root = (XPV*)xpv->xpv_pv;
535 p->xpv_pv = (char*)xpv_root;
543 register XPV* xpvend;
544 xpv_root = (XPV*)safemalloc(1008);
546 xpvend = &xpv[1008 / sizeof(XPV) - 1];
547 while (xpv < xpvend) {
548 xpv->xpv_pv = (char*)(xpv + 1);
556 #define new_XIV() (void*)safemalloc(sizeof(XPVIV))
557 #define del_XIV(p) free((char*)p)
559 #define new_XIV() (void*)new_xiv()
560 #define del_XIV(p) del_xiv(p)
564 #define new_XNV() (void*)safemalloc(sizeof(XPVNV))
565 #define del_XNV(p) free((char*)p)
567 #define new_XNV() (void*)new_xnv()
568 #define del_XNV(p) del_xnv(p)
572 #define new_XRV() (void*)safemalloc(sizeof(XRV))
573 #define del_XRV(p) free((char*)p)
575 #define new_XRV() (void*)new_xrv()
576 #define del_XRV(p) del_xrv(p)
580 #define new_XPV() (void*)safemalloc(sizeof(XPV))
581 #define del_XPV(p) free((char*)p)
583 #define new_XPV() (void*)new_xpv()
584 #define del_XPV(p) del_xpv(p)
587 #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV))
588 #define del_XPVIV(p) free((char*)p)
590 #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV))
591 #define del_XPVNV(p) free((char*)p)
593 #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG))
594 #define del_XPVMG(p) free((char*)p)
596 #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV))
597 #define del_XPVLV(p) free((char*)p)
599 #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV))
600 #define del_XPVAV(p) free((char*)p)
602 #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV))
603 #define del_XPVHV(p) free((char*)p)
605 #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV))
606 #define del_XPVCV(p) free((char*)p)
608 #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV))
609 #define del_XPVGV(p) free((char*)p)
611 #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM))
612 #define del_XPVBM(p) free((char*)p)
614 #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM))
615 #define del_XPVFM(p) free((char*)p)
617 #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO))
618 #define del_XPVIO(p) free((char*)p)
633 if (SvTYPE(sv) == mt)
639 switch (SvTYPE(sv)) {
654 nv = (double)SvIVX(sv);
660 else if (mt < SVt_PVIV)
677 pv = (char*)SvRV(sv);
681 nv = (double)(unsigned long)pv;
697 else if (mt == SVt_NV)
708 del_XPVIV(SvANY(sv));
718 del_XPVNV(SvANY(sv));
728 del_XPVMG(SvANY(sv));
731 croak("Can't upgrade that kind of scalar");
736 croak("Can't upgrade to undef");
738 SvANY(sv) = new_XIV();
742 SvANY(sv) = new_XNV();
746 SvANY(sv) = new_XRV();
750 SvANY(sv) = new_XPV();
756 SvANY(sv) = new_XPVIV();
766 SvANY(sv) = new_XPVNV();
774 SvANY(sv) = new_XPVMG();
784 SvANY(sv) = new_XPVLV();
798 SvANY(sv) = new_XPVAV();
813 SvANY(sv) = new_XPVHV();
829 SvANY(sv) = new_XPVCV();
830 Zero(SvANY(sv), 1, XPVCV);
840 SvANY(sv) = new_XPVGV();
855 SvANY(sv) = new_XPVBM();
868 SvANY(sv) = new_XPVFM();
869 Zero(SvANY(sv), 1, XPVFM);
879 SvANY(sv) = new_XPVIO();
880 Zero(SvANY(sv), 1, XPVIO);
891 SvFLAGS(sv) &= ~SVTYPEMASK;
901 SV *t = sv_newmortal();
911 else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
915 else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) {
916 if (sv == &sv_undef) {
917 sv_catpv(t, "SV_UNDEF");
918 if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT|
919 SVs_GMG|SVs_SMG|SVs_RMG)) &&
923 else if (sv == &sv_no) {
924 sv_catpv(t, "SV_NO");
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|
934 sv_catpv(t, "SV_YES");
935 if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT|
936 SVs_GMG|SVs_SMG|SVs_RMG)) &&
937 !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY|
940 SvPVX(sv) && *SvPVX(sv) == '1' &&
946 else if (SvREFCNT(sv) == 0) {
952 if (SvCUR(t) + unref > 10) {
953 SvCUR(t) = unref + 3;
961 switch (SvTYPE(sv)) {
963 sv_catpv(t, "FREED");
967 sv_catpv(t, "UNDEF");
1001 sv_catpvf(t, "CV(%s)", GvNAME(CvGV(sv)));
1003 sv_catpv(t, "CV()");
1021 sv_catpv(t, "(null)");
1023 sv_catpvf(t, "(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv));
1025 sv_catpvf(t, "(\"%.127s\")",SvPVX(sv));
1027 else if (SvNOKp(sv)) {
1028 SET_NUMERIC_STANDARD();
1029 sv_catpvf(t, "(%g)",SvNVX(sv));
1031 else if (SvIOKp(sv))
1032 sv_catpvf(t, "(%ld)",(long)SvIVX(sv));
1051 char *s = SvPVX(sv);
1052 SvLEN(sv) += SvIVX(sv);
1053 SvPVX(sv) -= SvIVX(sv);
1055 Move(s, SvPVX(sv), SvCUR(sv)+1, char);
1057 SvFLAGS(sv) &= ~SVf_OOK;
1065 register I32 newlen;
1067 unsigned long newlen;
1072 #ifdef HAS_64K_LIMIT
1073 if (newlen >= 0x10000) {
1074 PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
1077 #endif /* HAS_64K_LIMIT */
1080 if (SvTYPE(sv) < SVt_PV) {
1081 sv_upgrade(sv, SVt_PV);
1084 else if (SvOOK(sv)) { /* pv is offset? */
1087 if (newlen > SvLEN(sv))
1088 newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
1092 if (newlen > SvLEN(sv)) { /* need more room? */
1094 Renew(s,newlen,char);
1096 New(703,s,newlen,char);
1098 SvLEN_set(sv, newlen);
1108 sv_check_thinkfirst(sv);
1109 switch (SvTYPE(sv)) {
1111 sv_upgrade(sv, SVt_IV);
1114 sv_upgrade(sv, SVt_PVNV);
1118 sv_upgrade(sv, SVt_PVIV);
1134 croak("Can't coerce %s to integer in %s", sv_reftype(sv,0),
1135 op_desc[op->op_type]);
1138 (void)SvIOK_only(sv); /* validate number */
1151 sv_setnv(sv, (double)u);
1159 sv_check_thinkfirst(sv);
1160 switch (SvTYPE(sv)) {
1163 sv_upgrade(sv, SVt_NV);
1169 sv_upgrade(sv, SVt_PVNV);
1176 (void)SvOOK_off(sv);
1191 croak("Can't coerce %s to number in %s", sv_reftype(sv,0),
1192 op_name[op->op_type]);
1196 (void)SvNOK_only(sv); /* validate number */
1208 char *limit = tmpbuf + sizeof(tmpbuf) - 8;
1209 /* each *s can expand to 4 chars + "...\0",
1210 i.e. need room for 8 chars */
1212 for (s = SvPVX(sv); *s && d < limit; s++) {
1214 if (ch & 128 && !isPRINT_LC(ch)) {
1223 else if (ch == '\r') {
1227 else if (ch == '\f') {
1231 else if (ch == '\\') {
1235 else if (isPRINT_LC(ch))
1250 warn("Argument \"%s\" isn't numeric in %s", tmpbuf,
1251 op_name[op->op_type]);
1253 warn("Argument \"%s\" isn't numeric", tmpbuf);
1262 if (SvGMAGICAL(sv)) {
1267 if (SvNVX(sv) < 0.0)
1268 return I_V(SvNVX(sv));
1270 return (IV) U_V(SvNVX(sv));
1272 if (SvPOKp(sv) && SvLEN(sv))
1275 dTHR; /* just for localizing */
1276 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1281 if (SvTHINKFIRST(sv)) {
1285 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1286 return SvIV(tmpstr);
1287 #endif /* OVERLOAD */
1288 return (IV)SvRV(sv);
1290 if (SvREADONLY(sv)) {
1292 if (SvNVX(sv) < 0.0)
1293 return I_V(SvNVX(sv));
1295 return (IV) U_V(SvNVX(sv));
1297 if (SvPOKp(sv) && SvLEN(sv))
1304 switch (SvTYPE(sv)) {
1306 sv_upgrade(sv, SVt_IV);
1309 sv_upgrade(sv, SVt_PVIV);
1312 sv_upgrade(sv, SVt_PVNV);
1317 if (SvNVX(sv) < 0.0)
1318 SvIVX(sv) = I_V(SvNVX(sv));
1320 SvUVX(sv) = U_V(SvNVX(sv));
1322 else if (SvPOKp(sv) && SvLEN(sv)) {
1324 SvIVX(sv) = asIV(sv);
1328 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1332 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
1333 (unsigned long)sv,(long)SvIVX(sv)));
1343 if (SvGMAGICAL(sv)) {
1348 return U_V(SvNVX(sv));
1349 if (SvPOKp(sv) && SvLEN(sv))
1352 dTHR; /* just for localizing */
1353 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1358 if (SvTHINKFIRST(sv)) {
1362 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
1363 return SvUV(tmpstr);
1364 #endif /* OVERLOAD */
1365 return (UV)SvRV(sv);
1367 if (SvREADONLY(sv)) {
1369 return U_V(SvNVX(sv));
1371 if (SvPOKp(sv) && SvLEN(sv))
1378 switch (SvTYPE(sv)) {
1380 sv_upgrade(sv, SVt_IV);
1383 sv_upgrade(sv, SVt_PVIV);
1386 sv_upgrade(sv, SVt_PVNV);
1391 SvUVX(sv) = U_V(SvNVX(sv));
1393 else if (SvPOKp(sv) && SvLEN(sv)) {
1395 SvUVX(sv) = asUV(sv);
1398 dTHR; /* just for localizing */
1399 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1403 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
1404 (unsigned long)sv,SvUVX(sv)));
1414 if (SvGMAGICAL(sv)) {
1418 if (SvPOKp(sv) && SvLEN(sv)) {
1419 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1421 SET_NUMERIC_STANDARD();
1422 return atof(SvPVX(sv));
1425 return (double)SvIVX(sv);
1427 dTHR; /* just for localizing */
1428 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1433 if (SvTHINKFIRST(sv)) {
1437 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
1438 return SvNV(tmpstr);
1439 #endif /* OVERLOAD */
1440 return (double)(unsigned long)SvRV(sv);
1442 if (SvREADONLY(sv)) {
1443 if (SvPOKp(sv) && SvLEN(sv)) {
1444 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1446 SET_NUMERIC_STANDARD();
1447 return atof(SvPVX(sv));
1450 return (double)SvIVX(sv);
1456 if (SvTYPE(sv) < SVt_NV) {
1457 if (SvTYPE(sv) == SVt_IV)
1458 sv_upgrade(sv, SVt_PVNV);
1460 sv_upgrade(sv, SVt_NV);
1461 DEBUG_c(SET_NUMERIC_STANDARD());
1462 DEBUG_c(PerlIO_printf(Perl_debug_log,
1463 "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv)));
1465 else if (SvTYPE(sv) < SVt_PVNV)
1466 sv_upgrade(sv, SVt_PVNV);
1468 (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
1470 SvNVX(sv) = (double)SvIVX(sv);
1472 else if (SvPOKp(sv) && SvLEN(sv)) {
1473 if (dowarn && !SvIOKp(sv) && !looks_like_number(sv))
1475 SET_NUMERIC_STANDARD();
1476 SvNVX(sv) = atof(SvPVX(sv));
1480 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1485 DEBUG_c(SET_NUMERIC_STANDARD());
1486 DEBUG_c(PerlIO_printf(Perl_debug_log,
1487 "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv)));
1495 I32 numtype = looks_like_number(sv);
1499 return atol(SvPVX(sv));
1500 if (!numtype && dowarn)
1502 SET_NUMERIC_STANDARD();
1503 d = atof(SvPVX(sv));
1514 I32 numtype = looks_like_number(sv);
1517 return atol(SvPVX(sv));
1518 if (!numtype && dowarn)
1520 SET_NUMERIC_STANDARD();
1521 return U_V(atof(SvPVX(sv)));
1525 looks_like_number(sv)
1529 register char *send;
1530 register char *sbegin;
1538 else if (SvPOKp(sv))
1539 sbegin = SvPV(sv, len);
1542 send = sbegin + len;
1547 if (*s == '+' || *s == '-')
1550 /* next must be digit or '.' */
1554 } while (isDIGIT(*s));
1557 while (isDIGIT(*s)) /* optional digits after "." */
1561 else if (*s == '.') {
1563 /* no digits before '.' means we need digits after it */
1567 } while (isDIGIT(*s));
1576 * we return 1 if the number can be converted to _integer_ with atol()
1577 * and 2 if you need (int)atof().
1581 /* we can have an optional exponent part */
1582 if (*s == 'e' || *s == 'E') {
1585 if (*s == '+' || *s == '-')
1590 } while (isDIGIT(*s));
1599 if (len == 10 && memEQ(sbegin, "0 but true", 10))
1617 if (SvGMAGICAL(sv)) {
1624 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1629 SET_NUMERIC_STANDARD();
1630 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1635 dTHR; /* just for localizing */
1636 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1642 if (SvTHINKFIRST(sv)) {
1646 if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
1647 return SvPV(tmpstr,*lp);
1648 #endif /* OVERLOAD */
1653 switch (SvTYPE(sv)) {
1662 case SVt_PVMG: s = "SCALAR"; break;
1663 case SVt_PVLV: s = "LVALUE"; break;
1664 case SVt_PVAV: s = "ARRAY"; break;
1665 case SVt_PVHV: s = "HASH"; break;
1666 case SVt_PVCV: s = "CODE"; break;
1667 case SVt_PVGV: s = "GLOB"; break;
1668 case SVt_PVFM: s = "FORMATLINE"; break;
1669 case SVt_PVIO: s = "IO"; break;
1670 default: s = "UNKNOWN"; break;
1674 sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
1677 sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv);
1683 if (SvREADONLY(sv)) {
1685 SET_NUMERIC_STANDARD();
1686 Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf);
1691 (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv));
1701 if (!SvUPGRADE(sv, SVt_PV))
1704 if (SvTYPE(sv) < SVt_PVNV)
1705 sv_upgrade(sv, SVt_PVNV);
1708 olderrno = errno; /* some Xenix systems wipe out errno here */
1710 if (SvNVX(sv) == 0.0)
1711 (void)strcpy(s,"0");
1715 SET_NUMERIC_STANDARD();
1716 Gconvert(SvNVX(sv), DBL_DIG, 0, s);
1719 #ifdef FIXNEGATIVEZERO
1720 if (*s == '-' && s[1] == '0' && !s[2])
1729 else if (SvIOKp(sv)) {
1730 if (SvTYPE(sv) < SVt_PVIV)
1731 sv_upgrade(sv, SVt_PVIV);
1732 olderrno = errno; /* some Xenix systems wipe out errno here */
1733 sv_setpvf(sv, "%Vd", SvIVX(sv));
1739 if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP))
1744 *lp = s - SvPVX(sv);
1747 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv)));
1751 if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
1752 /* Sneaky stuff here */
1756 tsv = newSVpv(tokenbuf, 0);
1772 len = strlen(tokenbuf);
1774 #ifdef FIXNEGATIVEZERO
1775 if (len == 2 && t[0] == '-' && t[1] == '0') {
1780 (void)SvUPGRADE(sv, SVt_PV);
1782 s = SvGROW(sv, len + 1);
1790 /* This function is only called on magical items */
1805 if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
1806 return SvTRUE(tmpsv);
1808 #endif /* OVERLOAD */
1809 return SvRV(sv) != 0;
1812 register XPV* Xpvtmp;
1813 if ((Xpvtmp = (XPV*)SvANY(sv)) &&
1814 (*Xpvtmp->xpv_pv > '0' ||
1815 Xpvtmp->xpv_cur > 1 ||
1816 (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
1823 return SvIVX(sv) != 0;
1826 return SvNVX(sv) != 0.0;
1833 /* Note: sv_setsv() should not be called with a source string that needs
1834 * to be reused, since it may destroy the source string if it is marked
1844 register U32 sflags;
1850 sv_check_thinkfirst(dstr);
1853 stype = SvTYPE(sstr);
1854 dtype = SvTYPE(dstr);
1856 if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) {
1857 sv_unglob(dstr); /* so fake GLOB won't perpetuate */
1858 sv_setpvn(dstr, "", 0);
1859 (void)SvPOK_only(dstr);
1860 dtype = SvTYPE(dstr);
1865 #endif /* OVERLOAD */
1866 /* There's a lot of redundancy below but we're going for speed here */
1870 (void)SvOK_off(dstr);
1873 if (dtype != SVt_IV && dtype < SVt_PVIV) {
1875 sv_upgrade(dstr, SVt_IV);
1876 else if (dtype == SVt_NV)
1877 sv_upgrade(dstr, SVt_PVNV);
1879 sv_upgrade(dstr, SVt_PVIV);
1883 if (dtype != SVt_NV && dtype < SVt_PVNV) {
1885 sv_upgrade(dstr, SVt_NV);
1887 sv_upgrade(dstr, SVt_PVNV);
1892 sv_upgrade(dstr, SVt_RV);
1893 else if (dtype == SVt_PVGV &&
1894 SvTYPE(SvRV(sstr)) == SVt_PVGV) {
1897 if (curcop->cop_stash != GvSTASH(dstr))
1898 GvIMPORTED_on(dstr);
1908 sv_upgrade(dstr, SVt_PV);
1911 if (dtype < SVt_PVIV)
1912 sv_upgrade(dstr, SVt_PVIV);
1915 if (dtype < SVt_PVNV)
1916 sv_upgrade(dstr, SVt_PVNV);
1920 sv_upgrade(dstr, SVt_PVLV);
1928 croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0),
1929 op_name[op->op_type]);
1931 croak("Bizarre copy of %s", sv_reftype(sstr, 0));
1935 if (dtype <= SVt_PVGV) {
1937 if (dtype != SVt_PVGV) {
1938 char *name = GvNAME(sstr);
1939 STRLEN len = GvNAMELEN(sstr);
1940 sv_upgrade(dstr, SVt_PVGV);
1941 sv_magic(dstr, dstr, '*', name, len);
1942 GvSTASH(dstr) = GvSTASH(sstr);
1943 GvNAME(dstr) = savepvn(name, len);
1944 GvNAMELEN(dstr) = len;
1945 SvFAKE_on(dstr); /* can coerce to non-glob */
1947 /* ahem, death to those who redefine active sort subs */
1948 else if (curstack == sortstack
1949 && GvCV(dstr) && sortcop == CvSTART(GvCV(dstr)))
1950 croak("Can't redefine active sort subroutine %s",
1952 (void)SvOK_off(dstr);
1953 GvINTRO_off(dstr); /* one-shot flag */
1955 GvGP(dstr) = gp_ref(GvGP(sstr));
1957 if (curcop->cop_stash != GvSTASH(dstr))
1958 GvIMPORTED_on(dstr);
1965 if (SvGMAGICAL(sstr)) {
1967 if (SvTYPE(sstr) != stype) {
1968 stype = SvTYPE(sstr);
1969 if (stype == SVt_PVGV && dtype <= SVt_PVGV)
1974 sv_upgrade(dstr, stype);
1977 sflags = SvFLAGS(sstr);
1979 if (sflags & SVf_ROK) {
1980 if (dtype >= SVt_PV) {
1981 if (dtype == SVt_PVGV) {
1983 SV *sref = SvREFCNT_inc(SvRV(sstr));
1985 int intro = GvINTRO(dstr);
1989 GvGP(dstr)->gp_refcnt--;
1990 GvINTRO_off(dstr); /* one-shot flag */
1991 Newz(602,gp, 1, GP);
1992 GvGP(dstr) = gp_ref(gp);
1993 GvSV(dstr) = NEWSV(72,0);
1994 GvLINE(dstr) = curcop->cop_line;
1995 GvEGV(dstr) = (GV*)dstr;
1998 switch (SvTYPE(sref)) {
2001 SAVESPTR(GvAV(dstr));
2003 dref = (SV*)GvAV(dstr);
2004 GvAV(dstr) = (AV*)sref;
2005 if (curcop->cop_stash != GvSTASH(dstr))
2006 GvIMPORTED_AV_on(dstr);
2010 SAVESPTR(GvHV(dstr));
2012 dref = (SV*)GvHV(dstr);
2013 GvHV(dstr) = (HV*)sref;
2014 if (curcop->cop_stash != GvSTASH(dstr))
2015 GvIMPORTED_HV_on(dstr);
2019 if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
2020 SvREFCNT_dec(GvCV(dstr));
2021 GvCV(dstr) = Nullcv;
2022 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2025 SAVESPTR(GvCV(dstr));
2028 dref = (SV*)GvCV(dstr);
2029 if (GvCV(dstr) != (CV*)sref) {
2030 CV* cv = GvCV(dstr);
2032 if (!GvCVGEN((GV*)dstr) &&
2033 (CvROOT(cv) || CvXSUB(cv)))
2035 /* ahem, death to those who redefine
2036 * active sort subs */
2037 if (curstack == sortstack &&
2038 sortcop == CvSTART(cv))
2040 "Can't redefine active sort subroutine %s",
2041 GvENAME((GV*)dstr));
2042 if (cv_const_sv(cv))
2043 warn("Constant subroutine %s redefined",
2044 GvENAME((GV*)dstr));
2046 warn("Subroutine %s redefined",
2047 GvENAME((GV*)dstr));
2049 cv_ckproto(cv, (GV*)dstr,
2050 SvPOK(sref) ? SvPVX(sref) : Nullch);
2052 GvCV(dstr) = (CV*)sref;
2053 GvCVGEN(dstr) = 0; /* Switch off cacheness. */
2054 GvASSUMECV_on(dstr);
2057 if (curcop->cop_stash != GvSTASH(dstr))
2058 GvIMPORTED_CV_on(dstr);
2062 SAVESPTR(GvIOp(dstr));
2064 dref = (SV*)GvIOp(dstr);
2065 GvIOp(dstr) = (IO*)sref;
2069 SAVESPTR(GvSV(dstr));
2071 dref = (SV*)GvSV(dstr);
2073 if (curcop->cop_stash != GvSTASH(dstr))
2074 GvIMPORTED_SV_on(dstr);
2085 (void)SvOOK_off(dstr); /* backoff */
2086 Safefree(SvPVX(dstr));
2087 SvLEN(dstr)=SvCUR(dstr)=0;
2090 (void)SvOK_off(dstr);
2091 SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
2093 if (sflags & SVp_NOK) {
2095 SvNVX(dstr) = SvNVX(sstr);
2097 if (sflags & SVp_IOK) {
2098 (void)SvIOK_on(dstr);
2099 SvIVX(dstr) = SvIVX(sstr);
2102 if (SvAMAGIC(sstr)) {
2105 #endif /* OVERLOAD */
2107 else if (sflags & SVp_POK) {
2110 * Check to see if we can just swipe the string. If so, it's a
2111 * possible small lose on short strings, but a big win on long ones.
2112 * It might even be a win on short strings if SvPVX(dstr)
2113 * has to be allocated and SvPVX(sstr) has to be freed.
2116 if (SvTEMP(sstr) && /* slated for free anyway? */
2117 !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
2119 if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
2121 SvFLAGS(dstr) &= ~SVf_OOK;
2122 Safefree(SvPVX(dstr) - SvIVX(dstr));
2125 Safefree(SvPVX(dstr));
2127 (void)SvPOK_only(dstr);
2128 SvPV_set(dstr, SvPVX(sstr));
2129 SvLEN_set(dstr, SvLEN(sstr));
2130 SvCUR_set(dstr, SvCUR(sstr));
2132 (void)SvOK_off(sstr);
2133 SvPV_set(sstr, Nullch);
2138 else { /* have to copy actual string */
2139 STRLEN len = SvCUR(sstr);
2141 SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
2142 Move(SvPVX(sstr),SvPVX(dstr),len,char);
2143 SvCUR_set(dstr, len);
2144 *SvEND(dstr) = '\0';
2145 (void)SvPOK_only(dstr);
2148 if (sflags & SVp_NOK) {
2150 SvNVX(dstr) = SvNVX(sstr);
2152 if (sflags & SVp_IOK) {
2153 (void)SvIOK_on(dstr);
2154 SvIVX(dstr) = SvIVX(sstr);
2157 else if (sflags & SVp_NOK) {
2158 SvNVX(dstr) = SvNVX(sstr);
2159 (void)SvNOK_only(dstr);
2161 (void)SvIOK_on(dstr);
2162 SvIVX(dstr) = SvIVX(sstr);
2165 else if (sflags & SVp_IOK) {
2166 (void)SvIOK_only(dstr);
2167 SvIVX(dstr) = SvIVX(sstr);
2170 (void)SvOK_off(dstr);
2176 sv_setpvn(sv,ptr,len)
2178 register const char *ptr;
2179 register STRLEN len;
2181 assert(len >= 0); /* STRLEN is probably unsigned, so this may
2182 elicit a warning, but it won't hurt. */
2183 sv_check_thinkfirst(sv);
2188 if (SvTYPE(sv) >= SVt_PV) {
2189 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2192 else if (!sv_upgrade(sv, SVt_PV))
2194 SvGROW(sv, len + 1);
2195 Move(ptr,SvPVX(sv),len,char);
2198 (void)SvPOK_only(sv); /* validate pointer */
2205 register const char *ptr;
2207 register STRLEN len;
2209 sv_check_thinkfirst(sv);
2215 if (SvTYPE(sv) >= SVt_PV) {
2216 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
2219 else if (!sv_upgrade(sv, SVt_PV))
2221 SvGROW(sv, len + 1);
2222 Move(ptr,SvPVX(sv),len+1,char);
2224 (void)SvPOK_only(sv); /* validate pointer */
2229 sv_usepvn(sv,ptr,len)
2232 register STRLEN len;
2234 sv_check_thinkfirst(sv);
2235 if (!SvUPGRADE(sv, SVt_PV))
2242 Safefree(SvPVX(sv));
2243 Renew(ptr, len+1, char);
2246 SvLEN_set(sv, len+1);
2248 (void)SvPOK_only(sv); /* validate pointer */
2253 sv_check_thinkfirst(sv)
2256 if (SvTHINKFIRST(sv)) {
2257 if (SvREADONLY(sv)) {
2259 if (curcop != &compiling)
2268 sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
2272 register STRLEN delta;
2274 if (!ptr || !SvPOKp(sv))
2276 sv_check_thinkfirst(sv);
2277 if (SvTYPE(sv) < SVt_PVIV)
2278 sv_upgrade(sv,SVt_PVIV);
2282 SvFLAGS(sv) |= SVf_OOK;
2284 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK);
2285 delta = ptr - SvPVX(sv);
2293 sv_catpvn(sv,ptr,len)
2296 register STRLEN len;
2301 junk = SvPV_force(sv, tlen);
2302 SvGROW(sv, tlen + len + 1);
2305 Move(ptr,SvPVX(sv)+tlen,len,char);
2308 (void)SvPOK_only(sv); /* validate pointer */
2321 if (s = SvPV(sstr, len))
2322 sv_catpvn(dstr,s,len);
2330 register STRLEN len;
2336 junk = SvPV_force(sv, tlen);
2338 SvGROW(sv, tlen + len + 1);
2341 Move(ptr,SvPVX(sv)+tlen,len+1,char);
2343 (void)SvPOK_only(sv); /* validate pointer */
2363 sv_upgrade(sv, SVt_PV);
2364 SvGROW(sv, len + 1);
2369 /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
2372 sv_magic(sv, obj, how, name, namlen)
2381 if (SvREADONLY(sv)) {
2383 if (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 dTHR; /* just for SvREFCNT_inc */
2415 mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
2420 mg->mg_virtual = &vtbl_sv;
2424 mg->mg_virtual = &vtbl_amagic;
2427 mg->mg_virtual = &vtbl_amagicelem;
2432 #endif /* OVERLOAD */
2434 mg->mg_virtual = &vtbl_bm;
2437 mg->mg_virtual = &vtbl_env;
2440 mg->mg_virtual = &vtbl_fm;
2443 mg->mg_virtual = &vtbl_envelem;
2446 mg->mg_virtual = &vtbl_mglob;
2449 mg->mg_virtual = &vtbl_isa;
2452 mg->mg_virtual = &vtbl_isaelem;
2455 mg->mg_virtual = &vtbl_nkeys;
2462 mg->mg_virtual = &vtbl_dbline;
2466 mg->mg_virtual = &vtbl_mutex;
2468 #endif /* USE_THREADS */
2469 #ifdef USE_LOCALE_COLLATE
2471 mg->mg_virtual = &vtbl_collxfrm;
2473 #endif /* USE_LOCALE_COLLATE */
2475 mg->mg_virtual = &vtbl_pack;
2479 mg->mg_virtual = &vtbl_packelem;
2482 mg->mg_virtual = &vtbl_sig;
2485 mg->mg_virtual = &vtbl_sigelem;
2488 mg->mg_virtual = &vtbl_taint;
2492 mg->mg_virtual = &vtbl_uvar;
2495 mg->mg_virtual = &vtbl_vec;
2498 mg->mg_virtual = &vtbl_substr;
2501 mg->mg_virtual = &vtbl_defelem;
2504 mg->mg_virtual = &vtbl_glob;
2507 mg->mg_virtual = &vtbl_arylen;
2510 mg->mg_virtual = &vtbl_pos;
2512 case '~': /* Reserved for use by extensions not perl internals. */
2513 /* Useful for attaching extension internal data to perl vars. */
2514 /* Note that multiple extensions may clash if magical scalars */
2515 /* etc holding private data from one are passed to another. */
2519 croak("Don't know how to handle magic of type '%c'", how);
2523 SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
2527 sv_unmagic(sv, type)
2533 if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
2536 for (mg = *mgp; mg; mg = *mgp) {
2537 if (mg->mg_type == type) {
2538 MGVTBL* vtbl = mg->mg_virtual;
2539 *mgp = mg->mg_moremagic;
2540 if (vtbl && vtbl->svt_free)
2541 (*vtbl->svt_free)(sv, mg);
2542 if (mg->mg_ptr && mg->mg_type != 'g')
2543 if (mg->mg_len >= 0)
2544 Safefree(mg->mg_ptr);
2545 else if (mg->mg_len == HEf_SVKEY)
2546 SvREFCNT_dec((SV*)mg->mg_ptr);
2547 if (mg->mg_flags & MGf_REFCOUNTED)
2548 SvREFCNT_dec(mg->mg_obj);
2552 mgp = &mg->mg_moremagic;
2556 SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
2563 sv_insert(bigstr,offset,len,little,littlelen)
2572 register char *midend;
2573 register char *bigend;
2577 croak("Can't modify non-existent substring");
2578 SvPV_force(bigstr, na);
2580 i = littlelen - len;
2581 if (i > 0) { /* string might grow */
2582 big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
2583 mid = big + offset + len;
2584 midend = bigend = big + SvCUR(bigstr);
2587 while (midend > mid) /* shove everything down */
2588 *--bigend = *--midend;
2589 Move(little,big+offset,littlelen,char);
2595 Move(little,SvPVX(bigstr)+offset,len,char);
2600 big = SvPVX(bigstr);
2603 bigend = big + SvCUR(bigstr);
2605 if (midend > bigend)
2606 croak("panic: sv_insert");
2608 if (mid - big > bigend - midend) { /* faster to shorten from end */
2610 Move(little, mid, littlelen,char);
2613 i = bigend - midend;
2615 Move(midend, mid, i,char);
2619 SvCUR_set(bigstr, mid - big);
2622 else if (i = mid - big) { /* faster from front */
2623 midend -= littlelen;
2625 sv_chop(bigstr,midend-i);
2630 Move(little, mid, littlelen,char);
2632 else if (littlelen) {
2633 midend -= littlelen;
2634 sv_chop(bigstr,midend);
2635 Move(little,midend,littlelen,char);
2638 sv_chop(bigstr,midend);
2643 /* make sv point to what nstr did */
2650 U32 refcnt = SvREFCNT(sv);
2651 sv_check_thinkfirst(sv);
2652 if (SvREFCNT(nsv) != 1)
2653 warn("Reference miscount in sv_replace()");
2654 if (SvMAGICAL(sv)) {
2658 sv_upgrade(nsv, SVt_PVMG);
2659 SvMAGIC(nsv) = SvMAGIC(sv);
2660 SvFLAGS(nsv) |= SvMAGICAL(sv);
2666 assert(!SvREFCNT(sv));
2667 StructCopy(nsv,sv,SV);
2668 SvREFCNT(sv) = refcnt;
2669 SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
2678 assert(SvREFCNT(sv) == 0);
2682 if (defstash) { /* Still have a symbol table? */
2688 SAVEFREESV(SvSTASH(sv));
2690 destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
2695 sv_upgrade(&ref, SVt_RV);
2696 SvRV(&ref) = SvREFCNT_inc(sv);
2698 SvREFCNT(&ref) = 1; /* Fake, but otherwise
2699 creating+destructing a ref
2700 leads to disaster. */
2706 perl_call_sv((SV*)GvCV(destructor),
2707 G_DISCARD|G_EVAL|G_KEEPERR);
2708 del_XRV(SvANY(&ref));
2715 SvREFCNT_dec(SvSTASH(sv));
2717 SvOBJECT_off(sv); /* Curse the object. */
2718 if (SvTYPE(sv) != SVt_PVIO)
2719 --sv_objcount; /* XXX Might want something more general */
2724 && (ret = perl_get_sv("DB::ret", FALSE))
2725 && SvROK(ret) && SvRV(ret) == sv && SvREFCNT(sv) == 1) {
2726 /* Debugger is prone to dangling references. */
2733 croak("DESTROY created new reference to dead object");
2734 /* DESTROY gave object new lease on life */
2739 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
2741 switch (SvTYPE(sv)) {
2743 if (IoIFP(sv) != PerlIO_stdin() &&
2744 IoIFP(sv) != PerlIO_stdout() &&
2745 IoIFP(sv) != PerlIO_stderr())
2747 Safefree(IoTOP_NAME(sv));
2748 Safefree(IoFMT_NAME(sv));
2749 Safefree(IoBOTTOM_NAME(sv));
2765 Safefree(GvNAME(sv));
2772 (void)SvOOK_off(sv);
2777 SvREFCNT_dec(SvRV(sv));
2778 else if (SvPVX(sv) && SvLEN(sv))
2779 Safefree(SvPVX(sv));
2789 switch (SvTYPE(sv)) {
2805 del_XPVIV(SvANY(sv));
2808 del_XPVNV(SvANY(sv));
2811 del_XPVMG(SvANY(sv));
2814 del_XPVLV(SvANY(sv));
2817 del_XPVAV(SvANY(sv));
2820 del_XPVHV(SvANY(sv));
2823 del_XPVCV(SvANY(sv));
2826 del_XPVGV(SvANY(sv));
2829 del_XPVBM(SvANY(sv));
2832 del_XPVFM(SvANY(sv));
2835 del_XPVIO(SvANY(sv));
2838 SvFLAGS(sv) &= SVf_BREAK;
2839 SvFLAGS(sv) |= SVTYPEMASK;
2857 if (SvREADONLY(sv)) {
2858 if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
2861 if (SvREFCNT(sv) == 0) {
2862 if (SvFLAGS(sv) & SVf_BREAK)
2864 if (in_clean_all) /* All is fair */
2866 warn("Attempt to free unreferenced scalar");
2869 if (--SvREFCNT(sv) > 0)
2873 warn("Attempt to free temp prematurely: %s", SvPEEK(sv));
2895 junk = SvPV(sv, len);
2914 pv1 = SvPV(str1, cur1);
2919 pv2 = SvPV(str2, cur2);
2924 return memEQ(pv1, pv2, cur1);
2933 char *pv1 = str1 ? SvPV(str1, cur1) : NULL;
2935 char *pv2 = str2 ? SvPV(str2, cur2) : NULL;
2939 return cur2 ? -1 : 0;
2944 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
2947 return retval < 0 ? -1 : 1;
2952 return cur1 < cur2 ? -1 : 1;
2956 sv_cmp_locale(sv1, sv2)
2960 #ifdef USE_LOCALE_COLLATE
2966 if (collation_standard)
2970 pv1 = sv1 ? sv_collxfrm(sv1, &len1) : NULL;
2972 pv2 = sv2 ? sv_collxfrm(sv2, &len2) : NULL;
2974 if (!pv1 || !len1) {
2985 retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
2988 return retval < 0 ? -1 : 1;
2991 * When the result of collation is equality, that doesn't mean
2992 * that there are no differences -- some locales exclude some
2993 * characters from consideration. So to avoid false equalities,
2994 * we use the raw string as a tiebreaker.
3000 #endif /* USE_LOCALE_COLLATE */
3002 return sv_cmp(sv1, sv2);
3005 #ifdef USE_LOCALE_COLLATE
3007 * Any scalar variable may carry an 'o' magic that contains the
3008 * scalar data of the variable transformed to such a format that
3009 * a normal memory comparison can be used to compare the data
3010 * according to the locale settings.
3013 sv_collxfrm(sv, nxp)
3019 mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : NULL;
3020 if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != collation_ix) {
3025 Safefree(mg->mg_ptr);
3027 if ((xf = mem_collxfrm(s, len, &xlen))) {
3028 if (SvREADONLY(sv)) {
3034 sv_magic(sv, 0, 'o', 0, 0);
3035 mg = mg_find(sv, 'o');
3048 if (mg && mg->mg_ptr) {
3050 return mg->mg_ptr + sizeof(collation_ix);
3058 #endif /* USE_LOCALE_COLLATE */
3061 sv_gets(sv,fp,append)
3063 register PerlIO *fp;
3068 register STDCHAR rslast;
3069 register STDCHAR *bp;
3073 sv_check_thinkfirst(sv);
3074 if (!SvUPGRADE(sv, SVt_PV))
3082 else if (RsPARA(rs)) {
3087 rsptr = SvPV(rs, rslen);
3088 rslast = rslen ? rsptr[rslen - 1] : '\0';
3090 if (RsPARA(rs)) { /* have to do this both before and after */
3091 do { /* to make sure file boundaries work right */
3094 i = PerlIO_getc(fp);
3098 PerlIO_ungetc(fp,i);
3104 /* See if we know enough about I/O mechanism to cheat it ! */
3106 /* This used to be #ifdef test - it is made run-time test for ease
3107 of abstracting out stdio interface. One call should be cheap
3108 enough here - and may even be a macro allowing compile
3112 if (PerlIO_fast_gets(fp)) {
3115 * We're going to steal some values from the stdio struct
3116 * and put EVERYTHING in the innermost loop into registers.
3118 register STDCHAR *ptr;
3122 #if defined(VMS) && defined(PERLIO_IS_STDIO)
3123 /* An ungetc()d char is handled separately from the regular
3124 * buffer, so we getc() it back out and stuff it in the buffer.
3126 i = PerlIO_getc(fp);
3127 if (i == EOF) return 0;
3128 *(--((*fp)->_ptr)) = (unsigned char) i;
3132 /* Here is some breathtakingly efficient cheating */
3134 cnt = PerlIO_get_cnt(fp); /* get count into register */
3135 (void)SvPOK_only(sv); /* validate pointer */
3136 if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
3137 if (cnt > 80 && SvLEN(sv) > append) {
3138 shortbuffered = cnt - SvLEN(sv) + append + 1;
3139 cnt -= shortbuffered;
3143 /* remember that cnt can be negative */
3144 SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
3149 bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
3150 ptr = (STDCHAR*)PerlIO_get_ptr(fp);
3151 DEBUG_P(PerlIO_printf(Perl_debug_log,
3152 "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3153 DEBUG_P(PerlIO_printf(Perl_debug_log,
3154 "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3155 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3156 (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
3161 while (cnt > 0) { /* this | eat */
3163 if ((*bp++ = *ptr++) == rslast) /* really | dust */
3164 goto thats_all_folks; /* screams | sed :-) */
3168 Copy(ptr, bp, cnt, char); /* this | eat */
3169 bp += cnt; /* screams | dust */
3170 ptr += cnt; /* louder | sed :-) */
3175 if (shortbuffered) { /* oh well, must extend */
3176 cnt = shortbuffered;
3178 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3180 SvGROW(sv, SvLEN(sv) + append + cnt + 2);
3181 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3185 DEBUG_P(PerlIO_printf(Perl_debug_log,
3186 "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3187 PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
3188 DEBUG_P(PerlIO_printf(Perl_debug_log,
3189 "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3190 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3191 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3192 /* This used to call 'filbuf' in stdio form, but as that behaves like
3193 getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
3194 another abstraction. */
3195 i = PerlIO_getc(fp); /* get more characters */
3196 DEBUG_P(PerlIO_printf(Perl_debug_log,
3197 "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3198 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3199 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3200 cnt = PerlIO_get_cnt(fp);
3201 ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
3202 DEBUG_P(PerlIO_printf(Perl_debug_log,
3203 "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3205 if (i == EOF) /* all done for ever? */
3206 goto thats_really_all_folks;
3208 bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
3210 SvGROW(sv, bpx + cnt + 2);
3211 bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
3213 *bp++ = i; /* store character from PerlIO_getc */
3215 if (rslen && (STDCHAR)i == rslast) /* all done for now? */
3216 goto thats_all_folks;
3220 if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
3221 memNE((char*)bp - rslen, rsptr, rslen))
3222 goto screamer; /* go back to the fray */
3223 thats_really_all_folks:
3225 cnt += shortbuffered;
3226 DEBUG_P(PerlIO_printf(Perl_debug_log,
3227 "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
3228 PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
3229 DEBUG_P(PerlIO_printf(Perl_debug_log,
3230 "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
3231 (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
3232 (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
3234 SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
3235 DEBUG_P(PerlIO_printf(Perl_debug_log,
3236 "Screamer: done, len=%d, string=|%.*s|\n",
3237 SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
3241 /*The big, slow, and stupid way */
3246 register STDCHAR *bpe = buf + sizeof(buf);
3248 while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
3249 ; /* keep reading */
3253 cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
3254 /* Accomodate broken VAXC compiler, which applies U8 cast to
3255 * both args of ?: operator, causing EOF to change into 255
3257 if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
3261 sv_catpvn(sv, (char *) buf, cnt);
3263 sv_setpvn(sv, (char *) buf, cnt);
3265 if (i != EOF && /* joy */
3267 SvCUR(sv) < rslen ||
3268 memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
3272 * If we're reading from a TTY and we get a short read,
3273 * indicating that the user hit his EOF character, we need
3274 * to notice it now, because if we try to read from the TTY
3275 * again, the EOF condition will disappear.
3277 * The comparison of cnt to sizeof(buf) is an optimization
3278 * that prevents unnecessary calls to feof().
3282 if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
3287 if (RsPARA(rs)) { /* have to do this both before and after */
3288 while (i != EOF) { /* to make sure file boundaries work right */
3289 i = PerlIO_getc(fp);
3291 PerlIO_ungetc(fp,i);
3297 return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
3310 if (SvTHINKFIRST(sv)) {
3311 if (SvREADONLY(sv)) {
3313 if (curcop != &compiling)
3318 if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return;
3319 #endif /* OVERLOAD */
3325 flags = SvFLAGS(sv);
3326 if (flags & SVp_NOK) {
3327 (void)SvNOK_only(sv);
3331 if (flags & SVp_IOK) {
3332 if (SvIVX(sv) == IV_MAX)
3333 sv_setnv(sv, (double)IV_MAX + 1.0);
3335 (void)SvIOK_only(sv);
3340 if (!(flags & SVp_POK) || !*SvPVX(sv)) {
3341 if ((flags & SVTYPEMASK) < SVt_PVNV)
3342 sv_upgrade(sv, SVt_NV);
3344 (void)SvNOK_only(sv);
3348 while (isALPHA(*d)) d++;
3349 while (isDIGIT(*d)) d++;
3351 SET_NUMERIC_STANDARD();
3352 sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
3356 while (d >= SvPVX(sv)) {
3366 *(d--) -= 'z' - 'a' + 1;
3369 /* oh,oh, the number grew */
3370 SvGROW(sv, SvCUR(sv) + 2);
3372 for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--)
3388 if (SvTHINKFIRST(sv)) {
3389 if (SvREADONLY(sv)) {
3391 if (curcop != &compiling)
3396 if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return;
3397 #endif /* OVERLOAD */
3403 flags = SvFLAGS(sv);
3404 if (flags & SVp_NOK) {
3406 (void)SvNOK_only(sv);
3409 if (flags & SVp_IOK) {
3410 if (SvIVX(sv) == IV_MIN)
3411 sv_setnv(sv, (double)IV_MIN - 1.0);
3413 (void)SvIOK_only(sv);
3418 if (!(flags & SVp_POK)) {
3419 if ((flags & SVTYPEMASK) < SVt_PVNV)
3420 sv_upgrade(sv, SVt_NV);
3422 (void)SvNOK_only(sv);
3425 SET_NUMERIC_STANDARD();
3426 sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */
3429 /* Make a string that will exist for the duration of the expression
3430 * evaluation. Actually, it may have to last longer than that, but
3431 * hopefully we won't free it until it has been assigned to a
3432 * permanent location. */
3438 tmps_max += (tmps_max < 512) ? 128 : 512;
3439 Renew(tmps_stack, tmps_max, SV*);
3443 sv_mortalcopy(oldstr)
3453 sv_setsv(sv,oldstr);
3454 if (++tmps_ix >= tmps_max)
3456 tmps_stack[tmps_ix] = sv;
3470 SvFLAGS(sv) = SVs_TEMP;
3471 if (++tmps_ix >= tmps_max)
3473 tmps_stack[tmps_ix] = sv;
3477 /* same thing without the copying */
3486 if (SvREADONLY(sv) && curcop != &compiling)
3488 if (++tmps_ix >= tmps_max)
3490 tmps_stack[tmps_ix] = sv;
3508 sv_setpvn(sv,s,len);
3514 newSVpvf(const char* pat, ...)
3518 newSVpvf(pat, va_alist)
3531 va_start(args, pat);
3535 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
3580 sv_upgrade(sv, SVt_RV);
3582 SvRV(sv) = SvREFCNT_inc(ref);
3598 #endif /* CRIPPLED_CC */
3600 /* make an exact duplicate of old */
3610 if (SvTYPE(old) == SVTYPEMASK) {
3611 warn("semi-panic: attempt to dup freed string");
3641 if (!*s) { /* reset ?? searches */
3642 for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
3643 pm->op_pmflags &= ~PMf_USED;
3648 /* reset variables */
3650 if (!HvARRAY(stash))
3653 Zero(todo, 256, char);
3660 for ( ; i <= max; i++) {
3663 for (i = 0; i <= (I32) HvMAX(stash); i++) {
3664 for (entry = HvARRAY(stash)[i];
3666 entry = HeNEXT(entry)) {
3667 if (!todo[(U8)*HeKEY(entry)])
3669 gv = (GV*)HeVAL(entry);
3672 if (SvTYPE(sv) >= SVt_PV) {
3674 if (SvPVX(sv) != Nullch)
3681 if (GvHV(gv) && !HvNAME(GvHV(gv))) {
3683 #ifndef VMS /* VMS has no environ array */
3685 environ[0] = Nullch;
3700 switch (SvTYPE(sv)) {
3708 croak("Bad filehandle: %s", GvNAME(gv));
3712 croak(no_usym, "filehandle");
3714 return sv_2io(SvRV(sv));
3715 gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO);
3721 croak("Bad filehandle: %s", SvPV(sv,na));
3728 sv_2cv(sv, st, gvp, lref)
3738 return *gvp = Nullgv, Nullcv;
3739 switch (SvTYPE(sv)) {
3759 if (SvTYPE(cv) != SVt_PVCV)
3760 croak("Not a subroutine reference");
3768 gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV);
3774 if (lref && !GvCVu(gv)) {
3777 tmpsv = NEWSV(704,0);
3778 gv_efullname3(tmpsv, gv, Nullch);
3779 newSUB(start_subparse(FALSE, 0),
3780 newSVOP(OP_CONST, 0, tmpsv),
3785 croak("Unable to create sub named \"%s\"", SvPV(sv,na));
3802 if ((Xpv = (XPV*)SvANY(sv)) &&
3803 (*Xpv->xpv_pv > '0' ||
3805 (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
3812 return SvIVX(sv) != 0;
3815 return SvNVX(sv) != 0.0;
3817 return sv_2bool(sv);
3821 #endif /* !SvTRUE */
3866 return sv_2pv(sv, lp);
3871 sv_pvn_force(sv, lp)
3877 if (SvREADONLY(sv)) {
3879 if (curcop != &compiling)
3887 if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
3888 if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) {
3895 croak("Can't coerce %s to string in %s", sv_reftype(sv,0),
3896 op_name[op->op_type]);
3901 if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
3906 (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
3907 SvGROW(sv, len + 1);
3908 Move(s,SvPVX(sv),len,char);
3913 SvPOK_on(sv); /* validate pointer */
3915 DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
3916 (unsigned long)sv,SvPVX(sv)));
3927 if (ob && SvOBJECT(sv))
3928 return HvNAME(SvSTASH(sv));
3930 switch (SvTYPE(sv)) {
3944 case SVt_PVLV: return "LVALUE";
3945 case SVt_PVAV: return "ARRAY";
3946 case SVt_PVHV: return "HASH";
3947 case SVt_PVCV: return "CODE";
3948 case SVt_PVGV: return "GLOB";
3949 case SVt_PVFM: return "FORMLINE";
3950 default: return "UNKNOWN";
3986 return strEQ(HvNAME(SvSTASH(sv)), name);
3990 newSVrv(rv, classname)
4001 sv_upgrade(rv, SVt_RV);
4002 SvRV(rv) = SvREFCNT_inc(sv);
4006 HV* stash = gv_stashpv(classname, TRUE);
4007 (void)sv_bless(rv, stash);
4013 sv_setref_pv(rv, classname, pv)
4019 sv_setsv(rv, &sv_undef);
4021 sv_setiv(newSVrv(rv,classname), (IV)pv);
4026 sv_setref_iv(rv, classname, iv)
4031 sv_setiv(newSVrv(rv,classname), iv);
4036 sv_setref_nv(rv, classname, nv)
4041 sv_setnv(newSVrv(rv,classname), nv);
4046 sv_setref_pvn(rv, classname, pv, n)
4052 sv_setpvn(newSVrv(rv,classname), pv, n);
4057 #ifndef CAN_PROTOTYPE
4058 sv_bless3(sv,stash,zaptilde)
4063 sv_bless3(SV *sv, HV *stash, bool zaptilde)
4064 #endif /* CAN_PROTOTYPE */
4069 croak("Can't bless non-reference value");
4071 if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) {
4072 if (SvREADONLY(ref))
4074 if (SvOBJECT(ref)) {
4075 if (SvTYPE(ref) != SVt_PVIO)
4077 if (zaptilde && SvRMAGICAL(ref))
4078 sv_unmagic(ref, '~'); /* stop cross-class pointer forgery */
4079 SvREFCNT_dec(SvSTASH(ref));
4083 if (SvTYPE(ref) != SVt_PVIO)
4085 (void)SvUPGRADE(ref, SVt_PVMG);
4086 SvSTASH(ref) = (HV*)SvREFCNT_inc(stash);
4093 #endif /* OVERLOAD */
4103 return sv_bless3(sv, stash, FALSE);
4110 assert(SvTYPE(sv) == SVt_PVGV);
4114 sv_unmagic(sv, '*');
4115 Safefree(GvNAME(sv));
4117 SvFLAGS(sv) &= ~SVTYPEMASK;
4118 SvFLAGS(sv) |= SVt_PVMG;
4129 if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
4132 sv_2mortal(rv); /* Schedule for freeing later */
4139 sv_magic((sv), Nullsv, 't', Nullch, 0);
4146 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4147 MAGIC *mg = mg_find(sv, 't');
4157 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
4158 MAGIC *mg = mg_find(sv, 't');
4159 if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
4167 sv_setpvf(SV *sv, const char* pat, ...)
4171 sv_setpvf(sv, pat, va_alist)
4179 va_start(args, pat);
4183 sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4189 sv_catpvf(SV *sv, const char* pat, ...)
4193 sv_catpvf(sv, pat, va_alist)
4201 va_start(args, pat);
4205 sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*));
4210 sv_vsetpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4219 sv_setpvn(sv, "", 0);
4220 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale);
4224 sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale)
4239 static char nullstr[] = "(null)";
4241 /* no matter what, this is a string now */
4242 (void)SvPV_force(sv, origlen);
4244 /* special-case "", "%s", and "%_" */
4247 if (patlen == 2 && pat[0] == '%') {
4251 char *s = va_arg(*args, char*);
4252 sv_catpv(sv, s ? s : nullstr);
4254 else if (svix < svmax)
4255 sv_catsv(sv, *svargs);
4259 sv_catsv(sv, va_arg(*args, SV*));
4262 /* See comment on '_' below */
4267 patend = (char*)pat + patlen;
4268 for (p = (char*)pat; p < patend; p = q) {
4276 bool has_precis = FALSE;
4280 STRLEN esignlen = 0;
4282 char *eptr = Nullch;
4284 char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */
4286 static char *efloatbuf = Nullch;
4287 static STRLEN efloatsize = 0;
4299 for (q = p; q < patend && *q != '%'; ++q) ;
4301 sv_catpvn(sv, p, q - p);
4339 case '1': case '2': case '3':
4340 case '4': case '5': case '6':
4341 case '7': case '8': case '9':
4344 width = width * 10 + (*q++ - '0');
4349 i = va_arg(*args, int);
4351 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4353 width = (i < 0) ? -i : i;
4364 i = va_arg(*args, int);
4366 i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4367 precis = (i < 0) ? 0 : i;
4373 precis = precis * 10 + (*q++ - '0');
4382 #if 0 /* when quads have better support within Perl */
4383 if (*(q + 1) == 'l') {
4409 c = va_arg(*args, int);
4411 c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4418 eptr = va_arg(*args, char*);
4420 elen = strlen(eptr);
4423 elen = sizeof nullstr - 1;
4426 else if (svix < svmax)
4427 eptr = SvPVx(svargs[svix++], elen);
4432 * The "%_" hack might have to be changed someday,
4433 * if ISO or ANSI decide to use '_' for something.
4434 * So we keep it hidden from users' code.
4438 eptr = SvPVx(va_arg(*args, SV*), elen);
4441 if (has_precis && elen > precis)
4449 uv = (UV)va_arg(*args, void*);
4451 uv = (svix < svmax) ? (UV)svargs[svix++] : 0;
4462 case 'h': iv = (short)va_arg(*args, int); break;
4463 default: iv = va_arg(*args, int); break;
4464 case 'l': iv = va_arg(*args, long); break;
4465 case 'V': iv = va_arg(*args, IV); break;
4469 iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
4471 case 'h': iv = (short)iv; break;
4472 default: iv = (int)iv; break;
4473 case 'l': iv = (long)iv; break;
4480 esignbuf[esignlen++] = plus;
4484 esignbuf[esignlen++] = '-';
4510 case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
4511 default: uv = va_arg(*args, unsigned); break;
4512 case 'l': uv = va_arg(*args, unsigned long); break;
4513 case 'V': uv = va_arg(*args, UV); break;
4517 uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
4519 case 'h': uv = (unsigned short)uv; break;
4520 default: uv = (unsigned)uv; break;
4521 case 'l': uv = (unsigned long)uv; break;
4527 eptr = ebuf + sizeof ebuf;
4531 p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
4537 esignbuf[esignlen++] = '0';
4538 esignbuf[esignlen++] = c; /* 'x' or 'X' */
4544 *--eptr = '0' + dig;
4546 if (alt && *eptr != '0')
4549 default: /* it had better be ten or less */
4552 *--eptr = '0' + dig;
4553 } while (uv /= base);
4556 elen = (ebuf + sizeof ebuf) - eptr;
4557 if (has_precis && precis > elen)
4558 zeros = precis - elen;
4561 /* FLOATING POINT */
4564 c = 'f'; /* maybe %F isn't supported here */
4570 /* This is evil, but floating point is even more evil */
4573 nv = va_arg(*args, double);
4575 nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
4578 if (c != 'e' && c != 'E') {
4580 (void)frexp(nv, &i);
4581 if (i == PERL_INT_MIN)
4582 die("panic: frexp");
4584 need = BIT_DIGITS(i);
4586 need += has_precis ? precis : 6; /* known default */
4590 need += 20; /* fudge factor */
4591 if (efloatsize < need) {
4592 Safefree(efloatbuf);
4593 efloatsize = need + 20; /* more fudge */
4594 New(906, efloatbuf, efloatsize, char);
4597 eptr = ebuf + sizeof ebuf;
4602 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4607 do { *--eptr = '0' + (base % 10); } while (base /= 10);
4617 (void)sprintf(efloatbuf, eptr, nv);
4620 elen = strlen(efloatbuf);
4624 * User-defined locales may include arbitrary characters.
4625 * And, unfortunately, some system may alloc the "C" locale
4626 * to be overridden by a malicious user.
4629 *used_locale = TRUE;
4630 #endif /* LC_NUMERIC */
4637 i = SvCUR(sv) - origlen;
4640 case 'h': *(va_arg(*args, short*)) = i; break;
4641 default: *(va_arg(*args, int*)) = i; break;
4642 case 'l': *(va_arg(*args, long*)) = i; break;
4643 case 'V': *(va_arg(*args, IV*)) = i; break;
4646 else if (svix < svmax)
4647 sv_setuv(svargs[svix++], (UV)i);
4648 continue; /* not "break" */
4654 if (!args && dowarn &&
4655 (op->op_type == OP_PRTF || op->op_type == OP_SPRINTF)) {
4656 SV *msg = sv_newmortal();
4657 sv_setpvf(msg, "Invalid conversion in %s: ",
4658 (op->op_type == OP_PRTF) ? "printf" : "sprintf");
4660 sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"",
4663 sv_catpv(msg, "end of string");
4664 warn("%_", msg); /* yes, this is reentrant */
4666 /* output mangled stuff */
4672 have = esignlen + zeros + elen;
4673 need = (have > width ? have : width);
4676 SvGROW(sv, SvLEN(sv) + need);
4678 if (esignlen && fill == '0') {
4679 for (i = 0; i < esignlen; i++)
4683 memset(p, fill, gap);
4686 if (esignlen && fill != '0') {
4687 for (i = 0; i < esignlen; i++)
4691 for (i = zeros; i; i--)
4695 memcpy(p, eptr, elen);
4699 memset(p, ' ', gap);
4703 SvCUR(sv) = p - SvPVX(sv);
4712 SV *d = sv_newmortal();
4718 PerlIO_printf(Perl_debug_log, "SV = 0\n");
4722 flags = SvFLAGS(sv);
4725 sv_setpvf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (",
4726 (unsigned long)SvANY(sv), (long)SvREFCNT(sv));
4727 if (flags & SVs_PADBUSY) sv_catpv(d, "PADBUSY,");
4728 if (flags & SVs_PADTMP) sv_catpv(d, "PADTMP,");
4729 if (flags & SVs_PADMY) sv_catpv(d, "PADMY,");
4730 if (flags & SVs_TEMP) sv_catpv(d, "TEMP,");
4731 if (flags & SVs_OBJECT) sv_catpv(d, "OBJECT,");
4732 if (flags & SVs_GMG) sv_catpv(d, "GMG,");
4733 if (flags & SVs_SMG) sv_catpv(d, "SMG,");
4734 if (flags & SVs_RMG) sv_catpv(d, "RMG,");
4736 if (flags & SVf_IOK) sv_catpv(d, "IOK,");
4737 if (flags & SVf_NOK) sv_catpv(d, "NOK,");
4738 if (flags & SVf_POK) sv_catpv(d, "POK,");
4739 if (flags & SVf_ROK) sv_catpv(d, "ROK,");
4740 if (flags & SVf_OOK) sv_catpv(d, "OOK,");
4741 if (flags & SVf_FAKE) sv_catpv(d, "FAKE,");
4742 if (flags & SVf_READONLY) sv_catpv(d, "READONLY,");
4745 if (flags & SVf_AMAGIC) sv_catpv(d, "OVERLOAD,");
4746 #endif /* OVERLOAD */
4747 if (flags & SVp_IOK) sv_catpv(d, "pIOK,");
4748 if (flags & SVp_NOK) sv_catpv(d, "pNOK,");
4749 if (flags & SVp_POK) sv_catpv(d, "pPOK,");
4750 if (flags & SVp_SCREAM) sv_catpv(d, "SCREAM,");
4755 if (CvANON(sv)) sv_catpv(d, "ANON,");
4756 if (CvUNIQUE(sv)) sv_catpv(d, "UNIQUE,");
4757 if (CvCLONE(sv)) sv_catpv(d, "CLONE,");
4758 if (CvCLONED(sv)) sv_catpv(d, "CLONED,");
4759 if (CvNODEBUG(sv)) sv_catpv(d, "NODEBUG,");
4762 if (HvSHAREKEYS(sv)) sv_catpv(d, "SHAREKEYS,");
4763 if (HvLAZYDEL(sv)) sv_catpv(d, "LAZYDEL,");
4766 if (GvINTRO(sv)) sv_catpv(d, "INTRO,");
4767 if (GvMULTI(sv)) sv_catpv(d, "MULTI,");
4768 if (GvASSUMECV(sv)) sv_catpv(d, "ASSUMECV,");
4769 if (GvIMPORTED(sv)) {
4770 sv_catpv(d, "IMPORT");
4771 if (GvIMPORTED(sv) == GVf_IMPORTED)
4772 sv_catpv(d, "ALL,");
4775 if (GvIMPORTED_SV(sv)) sv_catpv(d, " SV");
4776 if (GvIMPORTED_AV(sv)) sv_catpv(d, " AV");
4777 if (GvIMPORTED_HV(sv)) sv_catpv(d, " HV");
4778 if (GvIMPORTED_CV(sv)) sv_catpv(d, " CV");
4784 if (*(SvEND(d) - 1) == ',')
4785 SvPVX(d)[--SvCUR(d)] = '\0';
4789 PerlIO_printf(Perl_debug_log, "SV = ");
4792 PerlIO_printf(Perl_debug_log, "NULL%s\n", s);
4795 PerlIO_printf(Perl_debug_log, "IV%s\n", s);
4798 PerlIO_printf(Perl_debug_log, "NV%s\n", s);
4801 PerlIO_printf(Perl_debug_log, "RV%s\n", s);
4804 PerlIO_printf(Perl_debug_log, "PV%s\n", s);
4807 PerlIO_printf(Perl_debug_log, "PVIV%s\n", s);
4810 PerlIO_printf(Perl_debug_log, "PVNV%s\n", s);
4813 PerlIO_printf(Perl_debug_log, "PVBM%s\n", s);
4816 PerlIO_printf(Perl_debug_log, "PVMG%s\n", s);
4819 PerlIO_printf(Perl_debug_log, "PVLV%s\n", s);
4822 PerlIO_printf(Perl_debug_log, "PVAV%s\n", s);
4825 PerlIO_printf(Perl_debug_log, "PVHV%s\n", s);
4828 PerlIO_printf(Perl_debug_log, "PVCV%s\n", s);
4831 PerlIO_printf(Perl_debug_log, "PVGV%s\n", s);
4834 PerlIO_printf(Perl_debug_log, "PVFM%s\n", s);
4837 PerlIO_printf(Perl_debug_log, "PVIO%s\n", s);
4840 PerlIO_printf(Perl_debug_log, "UNKNOWN%s\n", s);
4843 if (type >= SVt_PVIV || type == SVt_IV)
4844 PerlIO_printf(Perl_debug_log, " IV = %ld\n", (long)SvIVX(sv));
4845 if (type >= SVt_PVNV || type == SVt_NV) {
4846 SET_NUMERIC_STANDARD();
4847 PerlIO_printf(Perl_debug_log, " NV = %.*g\n", DBL_DIG, SvNVX(sv));
4850 PerlIO_printf(Perl_debug_log, " RV = 0x%lx\n", (long)SvRV(sv));
4856 if (type <= SVt_PVLV) {
4858 PerlIO_printf(Perl_debug_log, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n",
4859 (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv));
4861 PerlIO_printf(Perl_debug_log, " PV = 0\n");
4863 if (type >= SVt_PVMG) {
4865 PerlIO_printf(Perl_debug_log, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv));
4868 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(SvSTASH(sv)));
4872 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", LvTYPE(sv));
4873 PerlIO_printf(Perl_debug_log, " TARGOFF = %ld\n", (long)LvTARGOFF(sv));
4874 PerlIO_printf(Perl_debug_log, " TARGLEN = %ld\n", (long)LvTARGLEN(sv));
4875 PerlIO_printf(Perl_debug_log, " TARG = 0x%lx\n", (long)LvTARG(sv));
4876 sv_dump(LvTARG(sv));
4879 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n", (long)AvARRAY(sv));
4880 PerlIO_printf(Perl_debug_log, " ALLOC = 0x%lx\n", (long)AvALLOC(sv));
4881 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)AvFILL(sv));
4882 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)AvMAX(sv));
4883 PerlIO_printf(Perl_debug_log, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv));
4884 flags = AvFLAGS(sv);
4886 if (flags & AVf_REAL) sv_catpv(d, ",REAL");
4887 if (flags & AVf_REIFY) sv_catpv(d, ",REIFY");
4888 if (flags & AVf_REUSED) sv_catpv(d, ",REUSED");
4889 PerlIO_printf(Perl_debug_log, " FLAGS = (%s)\n",
4890 SvCUR(d) ? SvPVX(d) + 1 : "");
4893 PerlIO_printf(Perl_debug_log, " ARRAY = 0x%lx\n",(long)HvARRAY(sv));
4894 PerlIO_printf(Perl_debug_log, " KEYS = %ld\n", (long)HvKEYS(sv));
4895 PerlIO_printf(Perl_debug_log, " FILL = %ld\n", (long)HvFILL(sv));
4896 PerlIO_printf(Perl_debug_log, " MAX = %ld\n", (long)HvMAX(sv));
4897 PerlIO_printf(Perl_debug_log, " RITER = %ld\n", (long)HvRITER(sv));
4898 PerlIO_printf(Perl_debug_log, " EITER = 0x%lx\n",(long) HvEITER(sv));
4900 PerlIO_printf(Perl_debug_log, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv));
4902 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", HvNAME(sv));
4906 PerlIO_printf(Perl_debug_log, " PROTOTYPE = \"%s\"\n", SvPV(sv,na));
4909 PerlIO_printf(Perl_debug_log, " STASH = 0x%lx\n", (long)CvSTASH(sv));
4910 PerlIO_printf(Perl_debug_log, " START = 0x%lx\n", (long)CvSTART(sv));
4911 PerlIO_printf(Perl_debug_log, " ROOT = 0x%lx\n", (long)CvROOT(sv));
4912 PerlIO_printf(Perl_debug_log, " XSUB = 0x%lx\n", (long)CvXSUB(sv));
4913 PerlIO_printf(Perl_debug_log, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32);
4914 PerlIO_printf(Perl_debug_log, " GV = 0x%lx", (long)CvGV(sv));
4915 if (CvGV(sv) && GvNAME(CvGV(sv))) {
4916 PerlIO_printf(Perl_debug_log, " \"%s\"\n", GvNAME(CvGV(sv)));
4918 PerlIO_printf(Perl_debug_log, "\n");
4920 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv));
4921 PerlIO_printf(Perl_debug_log, " DEPTH = %ld\n", (long)CvDEPTH(sv));
4922 PerlIO_printf(Perl_debug_log, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv));
4923 PerlIO_printf(Perl_debug_log, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv));
4925 PerlIO_printf(Perl_debug_log, " MUTEXP = 0x%lx\n", (long)CvMUTEXP(sv));
4926 PerlIO_printf(Perl_debug_log, " OWNER = 0x%lx\n", (long)CvOWNER(sv));
4927 #endif /* USE_THREADS */
4928 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n",
4929 (unsigned long)CvFLAGS(sv));
4930 if (type == SVt_PVFM)
4931 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)FmLINES(sv));
4934 PerlIO_printf(Perl_debug_log, " NAME = \"%s\"\n", GvNAME(sv));
4935 PerlIO_printf(Perl_debug_log, " NAMELEN = %ld\n", (long)GvNAMELEN(sv));
4936 PerlIO_printf(Perl_debug_log, " STASH = \"%s\"\n", HvNAME(GvSTASH(sv)));
4937 PerlIO_printf(Perl_debug_log, " GP = 0x%lx\n", (long)GvGP(sv));
4938 PerlIO_printf(Perl_debug_log, " SV = 0x%lx\n", (long)GvSV(sv));
4939 PerlIO_printf(Perl_debug_log, " REFCNT = %ld\n", (long)GvREFCNT(sv));
4940 PerlIO_printf(Perl_debug_log, " IO = 0x%lx\n", (long)GvIOp(sv));
4941 PerlIO_printf(Perl_debug_log, " FORM = 0x%lx\n", (long)GvFORM(sv));
4942 PerlIO_printf(Perl_debug_log, " AV = 0x%lx\n", (long)GvAV(sv));
4943 PerlIO_printf(Perl_debug_log, " HV = 0x%lx\n", (long)GvHV(sv));
4944 PerlIO_printf(Perl_debug_log, " CV = 0x%lx\n", (long)GvCV(sv));
4945 PerlIO_printf(Perl_debug_log, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv));
4946 PerlIO_printf(Perl_debug_log, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv));
4947 PerlIO_printf(Perl_debug_log, " LINE = %ld\n", (long)GvLINE(sv));
4948 PerlIO_printf(Perl_debug_log, " FILEGV = 0x%lx\n", (long)GvFILEGV(sv));
4949 PerlIO_printf(Perl_debug_log, " EGV = 0x%lx\n", (long)GvEGV(sv));
4952 PerlIO_printf(Perl_debug_log, " IFP = 0x%lx\n", (long)IoIFP(sv));
4953 PerlIO_printf(Perl_debug_log, " OFP = 0x%lx\n", (long)IoOFP(sv));
4954 PerlIO_printf(Perl_debug_log, " DIRP = 0x%lx\n", (long)IoDIRP(sv));
4955 PerlIO_printf(Perl_debug_log, " LINES = %ld\n", (long)IoLINES(sv));
4956 PerlIO_printf(Perl_debug_log, " PAGE = %ld\n", (long)IoPAGE(sv));
4957 PerlIO_printf(Perl_debug_log, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv));
4958 PerlIO_printf(Perl_debug_log, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv));
4959 PerlIO_printf(Perl_debug_log, " TOP_NAME = \"%s\"\n", IoTOP_NAME(sv));
4960 PerlIO_printf(Perl_debug_log, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv));
4961 PerlIO_printf(Perl_debug_log, " FMT_NAME = \"%s\"\n", IoFMT_NAME(sv));
4962 PerlIO_printf(Perl_debug_log, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv));
4963 PerlIO_printf(Perl_debug_log, " BOTTOM_NAME = \"%s\"\n", IoBOTTOM_NAME(sv));
4964 PerlIO_printf(Perl_debug_log, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv));
4965 PerlIO_printf(Perl_debug_log, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv));
4966 PerlIO_printf(Perl_debug_log, " TYPE = %c\n", IoTYPE(sv));
4967 PerlIO_printf(Perl_debug_log, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv));