-/* $RCSfile: sv.c,v $$Revision: 4.1 $$Date: 92/08/07 18:26:45 $
+/* sv.c
*
- * Copyright (c) 1991, Larry Wall
+ * Copyright (c) 1991-1999, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
- * $Log: sv.c,v $
- * Revision 4.1 92/08/07 18:26:45 lwall
- *
- * Revision 4.0.1.6 92/06/11 21:14:21 lwall
- * patch34: quotes containing subscripts containing variables didn't parse right
- *
- * Revision 4.0.1.5 92/06/08 15:40:43 lwall
- * patch20: removed implicit int declarations on functions
- * patch20: Perl now distinguishes overlapped copies from non-overlapped
- * patch20: paragraph mode now skips extra newlines automatically
- * patch20: fixed memory leak in doube-quote interpretation
- * patch20: made /\$$foo/ look for literal '$foo'
- * patch20: "$var{$foo'bar}" didn't scan subscript correctly
- * patch20: a splice on non-existent array elements could dump core
- * patch20: running taintperl explicitly now does checks even if $< == $>
- *
- * Revision 4.0.1.4 91/11/05 18:40:51 lwall
- * patch11: $foo .= <BAR> could overrun malloced memory
- * patch11: \$ didn't always make it through double-quoter to regexp routines
- * patch11: prepared for ctype implementations that don't define isascii()
- *
- * Revision 4.0.1.3 91/06/10 01:27:54 lwall
- * patch10: $) and $| incorrectly handled in run-time patterns
- *
- * Revision 4.0.1.2 91/06/07 11:58:13 lwall
- * patch4: new copyright notice
- * patch4: taint check on undefined string could cause core dump
- *
- * Revision 4.0.1.1 91/04/12 09:15:30 lwall
- * patch1: fixed undefined environ problem
- * patch1: substr($ENV{"PATH"},0,0) = "/foo:" didn't modify environment
- * patch1: $foo .= <BAR> could cause core dump for certain lengths of $foo
- *
- * Revision 4.0 91/03/20 01:39:55 lwall
- * 4.0 baseline.
- *
+ */
+
+/*
+ * "I wonder what the Entish is for 'yes' and 'no'," he thought.
*/
#include "EXTERN.h"
+#define PERL_IN_SV_C
#include "perl.h"
-#include "perly.h"
-static void ucase();
-static void lcase();
+#define FCALL *f
+#define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv)
+
+static void do_report_used(pTHXo_ SV *sv);
+static void do_clean_objs(pTHXo_ SV *sv);
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+static void do_clean_named_objs(pTHXo_ SV *sv);
+#endif
+static void do_clean_all(pTHXo_ SV *sv);
-static SV* sv_root;
-static SV* more_sv();
+#ifdef PURIFY
-static SV*
-new_sv()
+#define new_SV(p) \
+ STMT_START { \
+ LOCK_SV_MUTEX; \
+ (p) = (SV*)safemalloc(sizeof(SV)); \
+ reg_add(p); \
+ UNLOCK_SV_MUTEX; \
+ SvANY(p) = 0; \
+ SvREFCNT(p) = 1; \
+ SvFLAGS(p) = 0; \
+ } STMT_END
+
+#define del_SV(p) \
+ STMT_START { \
+ LOCK_SV_MUTEX; \
+ reg_remove(p); \
+ Safefree((char*)(p)); \
+ UNLOCK_SV_MUTEX; \
+ } STMT_END
+
+static SV **registry;
+static I32 registry_size;
+
+#define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size))
+
+#define REG_REPLACE(sv,a,b) \
+ STMT_START { \
+ void* p = sv->sv_any; \
+ I32 h = REGHASH(sv, registry_size); \
+ I32 i = h; \
+ while (registry[i] != (a)) { \
+ if (++i >= registry_size) \
+ i = 0; \
+ if (i == h) \
+ Perl_die(aTHX_ "SV registry bug"); \
+ } \
+ registry[i] = (b); \
+ } STMT_END
+
+#define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv)
+#define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv)
+
+STATIC void
+S_reg_add(pTHX_ SV *sv)
{
- SV* sv;
- if (sv_root) {
- sv = sv_root;
- sv_root = (SV*)SvANY(sv);
- return sv;
+ if (PL_sv_count >= (registry_size >> 1))
+ {
+ SV **oldreg = registry;
+ I32 oldsize = registry_size;
+
+ registry_size = registry_size ? ((registry_size << 2) + 1) : 2037;
+ Newz(707, registry, registry_size, SV*);
+
+ if (oldreg) {
+ I32 i;
+
+ for (i = 0; i < oldsize; ++i) {
+ SV* oldsv = oldreg[i];
+ if (oldsv)
+ REG_ADD(oldsv);
+ }
+ Safefree(oldreg);
+ }
}
- return more_sv();
+
+ REG_ADD(sv);
+ ++PL_sv_count;
}
-static void
-del_sv(p)
-SV* p;
+STATIC void
+S_reg_remove(pTHX_ SV *sv)
+{
+ REG_REMOVE(sv);
+ --PL_sv_count;
+}
+
+STATIC void
+S_visit(pTHX_ SVFUNC_t f)
+{
+ I32 i;
+
+ for (i = 0; i < registry_size; ++i) {
+ SV* sv = registry[i];
+ if (sv && SvTYPE(sv) != SVTYPEMASK)
+ (*f)(sv);
+ }
+}
+
+void
+Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags)
+{
+ if (!(flags & SVf_FAKE))
+ Safefree(ptr);
+}
+
+#else /* ! PURIFY */
+
+/*
+ * "A time to plant, and a time to uproot what was planted..."
+ */
+
+#define plant_SV(p) \
+ STMT_START { \
+ SvANY(p) = (void *)PL_sv_root; \
+ SvFLAGS(p) = SVTYPEMASK; \
+ PL_sv_root = (p); \
+ --PL_sv_count; \
+ } STMT_END
+
+/* sv_mutex must be held while calling uproot_SV() */
+#define uproot_SV(p) \
+ STMT_START { \
+ (p) = PL_sv_root; \
+ PL_sv_root = (SV*)SvANY(p); \
+ ++PL_sv_count; \
+ } STMT_END
+
+#define new_SV(p) \
+ STMT_START { \
+ LOCK_SV_MUTEX; \
+ if (PL_sv_root) \
+ uproot_SV(p); \
+ else \
+ (p) = more_sv(); \
+ UNLOCK_SV_MUTEX; \
+ SvANY(p) = 0; \
+ SvREFCNT(p) = 1; \
+ SvFLAGS(p) = 0; \
+ } STMT_END
+
+#ifdef DEBUGGING
+
+#define del_SV(p) \
+ STMT_START { \
+ LOCK_SV_MUTEX; \
+ if (PL_debug & 32768) \
+ del_sv(p); \
+ else \
+ plant_SV(p); \
+ UNLOCK_SV_MUTEX; \
+ } STMT_END
+
+STATIC void
+S_del_sv(pTHX_ SV *p)
{
- SvANY(p) = sv_root;
- sv_root = p;
+ if (PL_debug & 32768) {
+ SV* sva;
+ SV* sv;
+ SV* svend;
+ int ok = 0;
+ for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) {
+ sv = sva + 1;
+ svend = &sva[SvREFCNT(sva)];
+ if (p >= sv && p < svend)
+ ok = 1;
+ }
+ if (!ok) {
+ if (ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL,
+ "Attempt to free non-arena SV: 0x%lx", (unsigned long)p);
+ return;
+ }
+ }
+ plant_SV(p);
}
-static SV*
-more_sv()
+#else /* ! DEBUGGING */
+
+#define del_SV(p) plant_SV(p)
+
+#endif /* DEBUGGING */
+
+void
+Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags)
{
- register int i;
+ SV* sva = (SV*)ptr;
register SV* sv;
register SV* svend;
- sv_root = (SV*)malloc(1008);
- sv = sv_root;
- svend = &sv[1008 / sizeof(SV) - 1];
+ Zero(sva, size, char);
+
+ /* The first SV in an arena isn't an SV. */
+ SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */
+ SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */
+ SvFLAGS(sva) = flags; /* FAKE if not to be freed */
+
+ PL_sv_arenaroot = sva;
+ PL_sv_root = sva + 1;
+
+ svend = &sva[SvREFCNT(sva) - 1];
+ sv = sva + 1;
while (sv < svend) {
- SvANY(sv) = (SV*)(sv + 1);
+ SvANY(sv) = (void *)(SV*)(sv + 1);
+ SvFLAGS(sv) = SVTYPEMASK;
sv++;
}
SvANY(sv) = 0;
- return new_sv();
+ SvFLAGS(sv) = SVTYPEMASK;
}
-static I32* xiv_root;
+/* sv_mutex must be held while calling more_sv() */
+STATIC SV*
+S_more_sv(pTHX)
+{
+ register SV* sv;
-static XPVIV* more_xiv();
+ if (PL_nice_chunk) {
+ sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0);
+ PL_nice_chunk = Nullch;
+ }
+ else {
+ char *chunk; /* must use New here to match call to */
+ New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */
+ sv_add_arena(chunk, 1008, 0);
+ }
+ uproot_SV(sv);
+ return sv;
+}
-static XPVIV*
-new_xiv()
+STATIC void
+S_visit(pTHX_ SVFUNC_t f)
{
- I32* xiv;
- if (xiv_root) {
- xiv = xiv_root;
- xiv_root = *(I32**)xiv;
- return (XPVIV*)((char*)xiv - sizeof(XPV));
+ SV* sva;
+ SV* sv;
+ register SV* svend;
+
+ for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) {
+ svend = &sva[SvREFCNT(sva)];
+ for (sv = sva + 1; sv < svend; ++sv) {
+ if (SvTYPE(sv) != SVTYPEMASK)
+ (FCALL)(aTHXo_ sv);
+ }
}
- return more_xiv();
}
-static void
-del_xiv(p)
-XPVIV* p;
+#endif /* PURIFY */
+
+void
+Perl_sv_report_used(pTHX)
{
- I32* xiv = (I32*)((char*)(p) + sizeof(XPV));
- *(I32**)xiv = xiv_root;
- xiv_root = xiv;
+ visit(do_report_used);
}
-static XPVIV*
-more_xiv()
+void
+Perl_sv_clean_objs(pTHX)
{
- register int i;
- register I32* xiv;
- register I32* xivend;
- xiv = (I32*)malloc(1008);
- xivend = &xiv[1008 / sizeof(I32) - 1];
- xiv += (sizeof(XPV) - 1) / sizeof(I32) + 1; /* fudge by size of XPV */
- xiv_root = xiv;
- while (xiv < xivend) {
- *(I32**)xiv = (I32*)(xiv + 1); /* XXX busted on Alpha? */
- xiv++;
+ PL_in_clean_objs = TRUE;
+ visit(do_clean_objs);
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+ /* some barnacles may yet remain, clinging to typeglobs */
+ visit(do_clean_named_objs);
+#endif
+ PL_in_clean_objs = FALSE;
+}
+
+void
+Perl_sv_clean_all(pTHX)
+{
+ PL_in_clean_all = TRUE;
+ visit(do_clean_all);
+ PL_in_clean_all = FALSE;
+}
+
+void
+Perl_sv_free_arenas(pTHX)
+{
+ SV* sva;
+ SV* svanext;
+
+ /* Free arenas here, but be careful about fake ones. (We assume
+ contiguity of the fake ones with the corresponding real ones.) */
+
+ for (sva = PL_sv_arenaroot; sva; sva = svanext) {
+ svanext = (SV*) SvANY(sva);
+ while (svanext && SvFAKE(svanext))
+ svanext = (SV*) SvANY(svanext);
+
+ if (!SvFAKE(sva))
+ Safefree((void *)sva);
}
- *(I32**)xiv = 0;
- return new_xiv();
+
+ if (PL_nice_chunk)
+ Safefree(PL_nice_chunk);
+ PL_nice_chunk = Nullch;
+ PL_nice_chunk_size = 0;
+ PL_sv_arenaroot = 0;
+ PL_sv_root = 0;
}
-static double* xnv_root;
+STATIC XPVIV*
+S_new_xiv(pTHX)
+{
+ IV* xiv;
+ LOCK_SV_MUTEX;
+ if (!PL_xiv_root)
+ more_xiv();
+ xiv = PL_xiv_root;
+ /*
+ * See comment in more_xiv() -- RAM.
+ */
+ PL_xiv_root = *(IV**)xiv;
+ UNLOCK_SV_MUTEX;
+ return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv));
+}
-static XPVNV* more_xnv();
+STATIC void
+S_del_xiv(pTHX_ XPVIV *p)
+{
+ IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv));
+ LOCK_SV_MUTEX;
+ *(IV**)xiv = PL_xiv_root;
+ PL_xiv_root = xiv;
+ UNLOCK_SV_MUTEX;
+}
-static XPVNV*
-new_xnv()
+STATIC void
+S_more_xiv(pTHX)
{
- double* xnv;
- if (xnv_root) {
- xnv = xnv_root;
- xnv_root = *(double**)xnv;
- return (XPVNV*)((char*)xnv - sizeof(XPVIV));
+ register IV* xiv;
+ register IV* xivend;
+ XPV* ptr;
+ New(705, ptr, 1008/sizeof(XPV), XPV);
+ ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */
+ PL_xiv_arenaroot = ptr; /* to keep Purify happy */
+
+ xiv = (IV*) ptr;
+ xivend = &xiv[1008 / sizeof(IV) - 1];
+ xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */
+ PL_xiv_root = xiv;
+ while (xiv < xivend) {
+ *(IV**)xiv = (IV *)(xiv + 1);
+ xiv++;
}
- return more_xnv();
+ *(IV**)xiv = 0;
}
-static void
-del_xnv(p)
-XPVNV* p;
+STATIC XPVNV*
+S_new_xnv(pTHX)
+{
+ NV* xnv;
+ LOCK_SV_MUTEX;
+ if (!PL_xnv_root)
+ more_xnv();
+ xnv = PL_xnv_root;
+ PL_xnv_root = *(NV**)xnv;
+ UNLOCK_SV_MUTEX;
+ return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv));
+}
+
+STATIC void
+S_del_xnv(pTHX_ XPVNV *p)
{
- double* xnv = (double*)((char*)(p) + sizeof(XPVIV));
- *(double**)xnv = xnv_root;
- xnv_root = xnv;
+ NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv));
+ LOCK_SV_MUTEX;
+ *(NV**)xnv = PL_xnv_root;
+ PL_xnv_root = xnv;
+ UNLOCK_SV_MUTEX;
}
-static XPVNV*
-more_xnv()
+STATIC void
+S_more_xnv(pTHX)
{
- register int i;
- register double* xnv;
- register double* xnvend;
- xnv = (double*)malloc(1008);
- xnvend = &xnv[1008 / sizeof(double) - 1];
- xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */
- xnv_root = xnv;
+ register NV* xnv;
+ register NV* xnvend;
+ New(711, xnv, 1008/sizeof(NV), NV);
+ xnvend = &xnv[1008 / sizeof(NV) - 1];
+ xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */
+ PL_xnv_root = xnv;
while (xnv < xnvend) {
- *(double**)xnv = (double*)(xnv + 1);
+ *(NV**)xnv = (NV*)(xnv + 1);
xnv++;
}
- *(double**)xnv = 0;
- return new_xnv();
+ *(NV**)xnv = 0;
}
-static XRV* xrv_root;
-
-static XRV* more_xrv();
-
-static XRV*
-new_xrv()
+STATIC XRV*
+S_new_xrv(pTHX)
{
XRV* xrv;
- if (xrv_root) {
- xrv = xrv_root;
- xrv_root = (XRV*)xrv->xrv_rv;
- return xrv;
- }
- return more_xrv();
+ LOCK_SV_MUTEX;
+ if (!PL_xrv_root)
+ more_xrv();
+ xrv = PL_xrv_root;
+ PL_xrv_root = (XRV*)xrv->xrv_rv;
+ UNLOCK_SV_MUTEX;
+ return xrv;
}
-static void
-del_xrv(p)
-XRV* p;
+STATIC void
+S_del_xrv(pTHX_ XRV *p)
{
- p->xrv_rv = (SV*)xrv_root;
- xrv_root = p;
+ LOCK_SV_MUTEX;
+ p->xrv_rv = (SV*)PL_xrv_root;
+ PL_xrv_root = p;
+ UNLOCK_SV_MUTEX;
}
-static XRV*
-more_xrv()
+STATIC void
+S_more_xrv(pTHX)
{
- register int i;
register XRV* xrv;
register XRV* xrvend;
- xrv_root = (XRV*)malloc(1008);
- xrv = xrv_root;
+ New(712, PL_xrv_root, 1008/sizeof(XRV), XRV);
+ xrv = PL_xrv_root;
xrvend = &xrv[1008 / sizeof(XRV) - 1];
while (xrv < xrvend) {
xrv->xrv_rv = (SV*)(xrv + 1);
xrv++;
}
xrv->xrv_rv = 0;
- return new_xrv();
}
-static XPV* xpv_root;
-
-static XPV* more_xpv();
-
-static XPV*
-new_xpv()
+STATIC XPV*
+S_new_xpv(pTHX)
{
XPV* xpv;
- if (xpv_root) {
- xpv = xpv_root;
- xpv_root = (XPV*)xpv->xpv_pv;
- return xpv;
- }
- return more_xpv();
+ LOCK_SV_MUTEX;
+ if (!PL_xpv_root)
+ more_xpv();
+ xpv = PL_xpv_root;
+ PL_xpv_root = (XPV*)xpv->xpv_pv;
+ UNLOCK_SV_MUTEX;
+ return xpv;
}
-static void
-del_xpv(p)
-XPV* p;
+STATIC void
+S_del_xpv(pTHX_ XPV *p)
{
- p->xpv_pv = (char*)xpv_root;
- xpv_root = p;
+ LOCK_SV_MUTEX;
+ p->xpv_pv = (char*)PL_xpv_root;
+ PL_xpv_root = p;
+ UNLOCK_SV_MUTEX;
}
-static XPV*
-more_xpv()
+STATIC void
+S_more_xpv(pTHX)
{
- register int i;
register XPV* xpv;
register XPV* xpvend;
- xpv_root = (XPV*)malloc(1008);
- xpv = xpv_root;
+ New(713, PL_xpv_root, 1008/sizeof(XPV), XPV);
+ xpv = PL_xpv_root;
xpvend = &xpv[1008 / sizeof(XPV) - 1];
while (xpv < xpvend) {
xpv->xpv_pv = (char*)(xpv + 1);
xpv++;
}
xpv->xpv_pv = 0;
- return new_xpv();
}
#ifdef PURIFY
-
-#define new_SV() sv = (SV*)malloc(sizeof(SV))
-#define del_SV(p) free((char*)p)
-
+#define new_XIV() (void*)safemalloc(sizeof(XPVIV))
+#define del_XIV(p) Safefree((char*)p)
#else
-
-#define new_SV() \
- if (sv_root) { \
- sv = sv_root; \
- sv_root = (SV*)SvANY(sv); \
- } \
- else \
- sv = more_sv();
-#define del_SV(p) del_sv(p)
-
+#define new_XIV() (void*)new_xiv()
+#define del_XIV(p) del_xiv((XPVIV*) p)
#endif
#ifdef PURIFY
-#define new_XIV() (void*)malloc(sizeof(XPVIV))
-#define del_XIV(p) free((char*)p)
+#define new_XNV() (void*)safemalloc(sizeof(XPVNV))
+#define del_XNV(p) Safefree((char*)p)
#else
-#define new_XIV() new_xiv()
-#define del_XIV(p) del_xiv(p)
+#define new_XNV() (void*)new_xnv()
+#define del_XNV(p) del_xnv((XPVNV*) p)
#endif
#ifdef PURIFY
-#define new_XNV() (void*)malloc(sizeof(XPVNV))
-#define del_XNV(p) free((char*)p)
+#define new_XRV() (void*)safemalloc(sizeof(XRV))
+#define del_XRV(p) Safefree((char*)p)
#else
-#define new_XNV() new_xnv()
-#define del_XNV(p) del_xnv(p)
+#define new_XRV() (void*)new_xrv()
+#define del_XRV(p) del_xrv((XRV*) p)
#endif
#ifdef PURIFY
-#define new_XRV() (void*)malloc(sizeof(XRV))
-#define del_XRV(p) free((char*)p)
+#define new_XPV() (void*)safemalloc(sizeof(XPV))
+#define del_XPV(p) Safefree((char*)p)
#else
-#define new_XRV() new_xrv()
-#define del_XRV(p) del_xrv(p)
+#define new_XPV() (void*)new_xpv()
+#define del_XPV(p) del_xpv((XPV *)p)
#endif
#ifdef PURIFY
-#define new_XPV() (void*)malloc(sizeof(XPV))
-#define del_XPV(p) free((char*)p)
+# define my_safemalloc(s) safemalloc(s)
+# define my_safefree(s) safefree(s)
#else
-#define new_XPV() new_xpv()
-#define del_XPV(p) del_xpv(p)
-#endif
-
-#define new_XPVIV() (void*)malloc(sizeof(XPVIV))
-#define del_XPVIV(p) free((char*)p)
-
-#define new_XPVNV() (void*)malloc(sizeof(XPVNV))
-#define del_XPVNV(p) free((char*)p)
-
-#define new_XPVMG() (void*)malloc(sizeof(XPVMG))
-#define del_XPVMG(p) free((char*)p)
-
-#define new_XPVLV() (void*)malloc(sizeof(XPVLV))
-#define del_XPVLV(p) free((char*)p)
-
-#define new_XPVAV() (void*)malloc(sizeof(XPVAV))
-#define del_XPVAV(p) free((char*)p)
-
-#define new_XPVHV() (void*)malloc(sizeof(XPVHV))
-#define del_XPVHV(p) free((char*)p)
-
-#define new_XPVCV() (void*)malloc(sizeof(XPVCV))
-#define del_XPVCV(p) free((char*)p)
-
-#define new_XPVGV() (void*)malloc(sizeof(XPVGV))
-#define del_XPVGV(p) free((char*)p)
-
-#define new_XPVBM() (void*)malloc(sizeof(XPVBM))
-#define del_XPVBM(p) free((char*)p)
-
-#define new_XPVFM() (void*)malloc(sizeof(XPVFM))
-#define del_XPVFM(p) free((char*)p)
+STATIC void*
+S_my_safemalloc(MEM_SIZE size)
+{
+ char *p;
+ New(717, p, size, char);
+ return (void*)p;
+}
+# define my_safefree(s) Safefree(s)
+#endif
+
+#define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV))
+#define del_XPVIV(p) my_safefree((char*)p)
+
+#define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV))
+#define del_XPVNV(p) my_safefree((char*)p)
+
+#define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG))
+#define del_XPVMG(p) my_safefree((char*)p)
+
+#define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV))
+#define del_XPVLV(p) my_safefree((char*)p)
+
+#define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV))
+#define del_XPVAV(p) my_safefree((char*)p)
+
+#define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV))
+#define del_XPVHV(p) my_safefree((char*)p)
+
+#define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV))
+#define del_XPVCV(p) my_safefree((char*)p)
+
+#define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV))
+#define del_XPVGV(p) my_safefree((char*)p)
+
+#define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM))
+#define del_XPVBM(p) my_safefree((char*)p)
+
+#define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM))
+#define del_XPVFM(p) my_safefree((char*)p)
+
+#define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO))
+#define del_XPVIO(p) my_safefree((char*)p)
bool
-sv_upgrade(sv, mt)
-register SV* sv;
-U32 mt;
+Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt)
{
char* pv;
U32 cur;
U32 len;
- I32 iv;
- double nv;
+ IV iv;
+ NV nv;
MAGIC* magic;
HV* stash;
if (SvTYPE(sv) == mt)
return TRUE;
+ if (mt < SVt_PVIV)
+ (void)SvOOK_off(sv);
+
switch (SvTYPE(sv)) {
case SVt_NULL:
pv = 0;
cur = 0;
len = 0;
iv = SvIVX(sv);
- nv = (double)SvIVX(sv);
+ nv = (NV)SvIVX(sv);
del_XIV(SvANY(sv));
magic = 0;
stash = 0;
cur = 0;
len = 0;
nv = SvNVX(sv);
- iv = I_32(nv);
+ iv = I_V(nv);
magic = 0;
stash = 0;
del_XNV(SvANY(sv));
pv = (char*)SvRV(sv);
cur = 0;
len = 0;
- iv = (I32)pv;
- nv = (double)(unsigned long)pv;
+ iv = (IV)PTR_CAST pv;
+ nv = (NV)(PTRV)pv;
del_XRV(SvANY(sv));
magic = 0;
stash = 0;
break;
case SVt_PV:
- nv = 0.0;
pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
magic = 0;
stash = 0;
del_XPV(SvANY(sv));
+ if (mt <= SVt_IV)
+ mt = SVt_PVIV;
+ else if (mt == SVt_NV)
+ mt = SVt_PVNV;
break;
case SVt_PVIV:
- nv = 0.0;
pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
del_XPVIV(SvANY(sv));
break;
case SVt_PVNV:
- nv = SvNVX(sv);
pv = SvPVX(sv);
cur = SvCUR(sv);
len = SvLEN(sv);
del_XPVMG(SvANY(sv));
break;
default:
- croak("Can't upgrade that kind of scalar");
+ Perl_croak(aTHX_ "Can't upgrade that kind of scalar");
}
switch (mt) {
case SVt_NULL:
- croak("Can't upgrade to undef");
+ Perl_croak(aTHX_ "Can't upgrade to undef");
case SVt_IV:
SvANY(sv) = new_XIV();
SvIVX(sv) = iv;
case SVt_RV:
SvANY(sv) = new_XRV();
SvRV(sv) = (SV*)pv;
- SvOK_on(sv);
break;
case SVt_PV:
SvANY(sv) = new_XPV();
SvLEN(sv) = len;
SvIVX(sv) = iv;
if (SvNIOK(sv))
- SvIOK_on(sv);
+ (void)SvIOK_on(sv);
SvNOK_off(sv);
break;
case SVt_PVNV:
SvANY(sv) = new_XPVAV();
if (pv)
Safefree(pv);
- AvARRAY(sv) = 0;
- AvMAX(sv) = 0;
- AvFILL(sv) = 0;
+ SvPVX(sv) = 0;
+ AvMAX(sv) = -1;
+ AvFILLp(sv) = -1;
SvIVX(sv) = 0;
SvNVX(sv) = 0.0;
SvMAGIC(sv) = magic;
break;
case SVt_PVCV:
SvANY(sv) = new_XPVCV();
+ Zero(SvANY(sv), 1, XPVCV);
SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- CvSTASH(sv) = 0;
- CvSTART(sv) = 0;
- CvROOT(sv) = 0;
- CvUSERSUB(sv) = 0;
- CvUSERINDEX(sv) = 0;
- CvFILEGV(sv) = 0;
- CvDEPTH(sv) = 0;
- CvPADLIST(sv) = 0;
- CvDELETED(sv) = 0;
break;
case SVt_PVGV:
SvANY(sv) = new_XPVGV();
GvNAME(sv) = 0;
GvNAMELEN(sv) = 0;
GvSTASH(sv) = 0;
+ GvFLAGS(sv) = 0;
break;
case SVt_PVBM:
SvANY(sv) = new_XPVBM();
break;
case SVt_PVFM:
SvANY(sv) = new_XPVFM();
+ Zero(SvANY(sv), 1, XPVFM);
+ SvPVX(sv) = pv;
+ SvCUR(sv) = cur;
+ SvLEN(sv) = len;
+ SvIVX(sv) = iv;
+ SvNVX(sv) = nv;
+ SvMAGIC(sv) = magic;
+ SvSTASH(sv) = stash;
+ break;
+ case SVt_PVIO:
+ SvANY(sv) = new_XPVIO();
+ Zero(SvANY(sv), 1, XPVIO);
SvPVX(sv) = pv;
SvCUR(sv) = cur;
SvLEN(sv) = len;
SvNVX(sv) = nv;
SvMAGIC(sv) = magic;
SvSTASH(sv) = stash;
- FmLINES(sv) = 0;
+ IoPAGE_LEN(sv) = 60;
break;
}
- SvTYPE(sv) = mt;
+ SvFLAGS(sv) &= ~SVTYPEMASK;
+ SvFLAGS(sv) |= mt;
return TRUE;
}
-char *
-sv_peek(sv)
-register SV *sv;
-{
- char *t = tokenbuf;
- *t = '\0';
-
- retry:
- if (!sv) {
- strcpy(t, "VOID");
- return tokenbuf;
- }
- else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') {
- strcpy(t, "WILD");
- return tokenbuf;
- }
- else if (SvREFCNT(sv) == 0 && !SvREADONLY(sv)) {
- strcpy(t, "UNREF");
- return tokenbuf;
- }
- else {
- switch (SvTYPE(sv)) {
- default:
- strcpy(t,"FREED");
- return tokenbuf;
- break;
-
- case SVt_NULL:
- strcpy(t,"UNDEF");
- return tokenbuf;
- case SVt_IV:
- strcpy(t,"IV");
- break;
- case SVt_NV:
- strcpy(t,"NV");
- break;
- case SVt_RV:
- *t++ = '\\';
- if (t - tokenbuf > 10) {
- strcpy(tokenbuf + 3,"...");
- return tokenbuf;
- }
- sv = (SV*)SvRV(sv);
- goto retry;
- case SVt_PV:
- strcpy(t,"PV");
- break;
- case SVt_PVIV:
- strcpy(t,"PVIV");
- break;
- case SVt_PVNV:
- strcpy(t,"PVNV");
- break;
- case SVt_PVMG:
- strcpy(t,"PVMG");
- break;
- case SVt_PVLV:
- strcpy(t,"PVLV");
- break;
- case SVt_PVAV:
- strcpy(t,"AV");
- break;
- case SVt_PVHV:
- strcpy(t,"HV");
- break;
- case SVt_PVCV:
- strcpy(t,"CV");
- break;
- case SVt_PVGV:
- strcpy(t,"GV");
- break;
- case SVt_PVBM:
- strcpy(t,"BM");
- break;
- case SVt_PVFM:
- strcpy(t,"FM");
- break;
- }
- }
- t += strlen(t);
-
- if (SvPOK(sv)) {
- if (!SvPVX(sv))
- return "(null)";
- if (SvOOK(sv))
- sprintf(t,"(%d+\"%0.127s\")",SvIVX(sv),SvPVX(sv));
- else
- sprintf(t,"(\"%0.127s\")",SvPVX(sv));
- }
- else if (SvNOK(sv))
- sprintf(t,"(%g)",SvNVX(sv));
- else if (SvIOK(sv))
- sprintf(t,"(%ld)",(long)SvIVX(sv));
- else
- strcpy(t,"()");
- return tokenbuf;
-}
-
int
-sv_backoff(sv)
-register SV *sv;
+Perl_sv_backoff(pTHX_ register SV *sv)
{
assert(SvOOK(sv));
if (SvIVX(sv)) {
Move(s, SvPVX(sv), SvCUR(sv)+1, char);
}
SvFLAGS(sv) &= ~SVf_OOK;
+ return 0;
}
char *
-sv_grow(sv,newlen)
-register SV *sv;
-#ifndef DOSISH
-register I32 newlen;
-#else
-unsigned long newlen;
-#endif
+Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen)
{
register char *s;
-#ifdef MSDOS
+#ifdef HAS_64K_LIMIT
if (newlen >= 0x10000) {
- fprintf(stderr, "Allocation too large: %lx\n", newlen);
+ PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen);
my_exit(1);
}
-#endif /* MSDOS */
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
+#endif /* HAS_64K_LIMIT */
+ if (SvROK(sv))
+ sv_unref(sv);
if (SvTYPE(sv) < SVt_PV) {
sv_upgrade(sv, SVt_PV);
s = SvPVX(sv);
s = SvPVX(sv);
if (newlen > SvLEN(sv))
newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */
+#ifdef HAS_64K_LIMIT
+ if (newlen >= 0x10000)
+ newlen = 0xFFFF;
+#endif
}
else
s = SvPVX(sv);
if (newlen > SvLEN(sv)) { /* need more room? */
- if (SvLEN(sv))
+ if (SvLEN(sv) && s) {
+#if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
+ STRLEN l = malloced_size((void*)SvPVX(sv));
+ if (newlen <= l) {
+ SvLEN_set(sv, l);
+ return s;
+ } else
+#endif
Renew(s,newlen,char);
+ }
else
New(703,s,newlen,char);
SvPV_set(sv, s);
}
void
-sv_setiv(sv,i)
-register SV *sv;
-I32 i;
+Perl_sv_setiv(pTHX_ register SV *sv, IV i)
{
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
+ SV_CHECK_THINKFIRST(sv);
switch (SvTYPE(sv)) {
case SVt_NULL:
sv_upgrade(sv, SVt_IV);
case SVt_PV:
sv_upgrade(sv, SVt_PVIV);
break;
+
+ case SVt_PVGV:
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVIO:
+ {
+ dTHR;
+ Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0),
+ PL_op_desc[PL_op->op_type]);
+ }
}
+ (void)SvIOK_only(sv); /* validate number */
SvIVX(sv) = i;
- SvIOK_only(sv); /* validate number */
SvTAINT(sv);
}
void
-sv_setnv(sv,num)
-register SV *sv;
-double num;
+Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i)
{
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- if (SvTYPE(sv) < SVt_NV)
+ sv_setiv(sv,i);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_setuv(pTHX_ register SV *sv, UV u)
+{
+ sv_setiv(sv, 0);
+ SvIsUV_on(sv);
+ SvUVX(sv) = u;
+}
+
+void
+Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u)
+{
+ sv_setuv(sv,u);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_setnv(pTHX_ register SV *sv, NV num)
+{
+ SV_CHECK_THINKFIRST(sv);
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ case SVt_IV:
sv_upgrade(sv, SVt_NV);
- else if (SvTYPE(sv) < SVt_PVNV)
+ break;
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
sv_upgrade(sv, SVt_PVNV);
- else if (SvPOK(sv)) {
- SvOOK_off(sv);
+ break;
+
+ case SVt_PVGV:
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVIO:
+ {
+ dTHR;
+ Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0),
+ PL_op_name[PL_op->op_type]);
+ }
}
SvNVX(sv) = num;
- SvNOK_only(sv); /* validate number */
+ (void)SvNOK_only(sv); /* validate number */
SvTAINT(sv);
}
-I32
-sv_2iv(sv)
-register SV *sv;
+void
+Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num)
+{
+ sv_setnv(sv,num);
+ SvSETMAGIC(sv);
+}
+
+STATIC void
+S_not_a_number(pTHX_ SV *sv)
+{
+ dTHR;
+ char tmpbuf[64];
+ char *d = tmpbuf;
+ char *s;
+ char *limit = tmpbuf + sizeof(tmpbuf) - 8;
+ /* each *s can expand to 4 chars + "...\0",
+ i.e. need room for 8 chars */
+
+ for (s = SvPVX(sv); *s && d < limit; s++) {
+ int ch = *s & 0xFF;
+ if (ch & 128 && !isPRINT_LC(ch)) {
+ *d++ = 'M';
+ *d++ = '-';
+ ch &= 127;
+ }
+ if (ch == '\n') {
+ *d++ = '\\';
+ *d++ = 'n';
+ }
+ else if (ch == '\r') {
+ *d++ = '\\';
+ *d++ = 'r';
+ }
+ else if (ch == '\f') {
+ *d++ = '\\';
+ *d++ = 'f';
+ }
+ else if (ch == '\\') {
+ *d++ = '\\';
+ *d++ = '\\';
+ }
+ else if (isPRINT_LC(ch))
+ *d++ = ch;
+ else {
+ *d++ = '^';
+ *d++ = toCTRL(ch);
+ }
+ }
+ if (*s) {
+ *d++ = '.';
+ *d++ = '.';
+ *d++ = '.';
+ }
+ *d = '\0';
+
+ if (PL_op)
+ Perl_warner(aTHX_ WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf,
+ PL_op_name[PL_op->op_type]);
+ else
+ Perl_warner(aTHX_ WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf);
+}
+
+/* the number can be converted to integer with atol() or atoll() */
+#define IS_NUMBER_TO_INT_BY_ATOL 0x01
+#define IS_NUMBER_TO_INT_BY_ATOF 0x02 /* atol() may be != atof() */
+#define IS_NUMBER_NOT_IV 0x04 /* (IV)atof() may be != atof() */
+#define IS_NUMBER_NEG 0x08 /* not good to cache UV */
+
+/* Actually, ISO C leaves conversion of UV to IV undefined, but
+ until proven guilty, assume that things are not that bad... */
+
+IV
+Perl_sv_2iv(pTHX_ register SV *sv)
{
if (!sv)
return 0;
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvIOKp(sv))
return SvIVX(sv);
- if (SvNOKp(sv))
- return (I32)SvNVX(sv);
+ if (SvNOKp(sv)) {
+ return I_V(SvNVX(sv));
+ }
if (SvPOKp(sv) && SvLEN(sv))
- return (I32)atol(SvPVX(sv));
- return 0;
+ return asIV(sv);
+ if (!SvROK(sv)) {
+ if (!(SvFLAGS(sv) & SVs_PADTMP)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ return 0;
+ }
}
if (SvTHINKFIRST(sv)) {
- if (SvROK(sv))
- return (I32)SvRV(sv);
- if (SvREADONLY(sv)) {
- if (SvNOK(sv))
- return (I32)SvNVX(sv);
- if (SvPOK(sv) && SvLEN(sv))
- return (I32)atol(SvPVX(sv));
- if (dowarn)
- warn("Use of uninitialized variable");
+ if (SvROK(sv)) {
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
+ return SvIV(tmpstr);
+ return (IV)PTR_CAST SvRV(sv);
+ }
+ if (SvREADONLY(sv) && !SvOK(sv)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
return 0;
}
}
- switch (SvTYPE(sv)) {
- case SVt_NULL:
- sv_upgrade(sv, SVt_IV);
- return SvIVX(sv);
- case SVt_PV:
- sv_upgrade(sv, SVt_PVIV);
- break;
- case SVt_NV:
- sv_upgrade(sv, SVt_PVNV);
- break;
+ if (SvIOKp(sv)) {
+ if (SvIsUV(sv)) {
+ return (IV)(SvUVX(sv));
+ }
+ else {
+ return SvIVX(sv);
+ }
}
- if (SvNOK(sv))
- SvIVX(sv) = (I32)SvNVX(sv);
- else if (SvPOK(sv) && SvLEN(sv)) {
- if (dowarn && !looks_like_number(sv)) {
- if (op)
- warn("Argument wasn't numeric for \"%s\"",op_name[op->op_type]);
- else
- warn("Argument wasn't numeric");
+ if (SvNOKp(sv)) {
+ /* We can cache the IV/UV value even if it not good enough
+ * to reconstruct NV, since the conversion to PV will prefer
+ * NV over IV/UV.
+ */
+
+ if (SvTYPE(sv) == SVt_NV)
+ sv_upgrade(sv, SVt_PVNV);
+
+ (void)SvIOK_on(sv);
+ if (SvNVX(sv) < (NV)IV_MAX + 0.5)
+ SvIVX(sv) = I_V(SvNVX(sv));
+ else {
+ SvUVX(sv) = U_V(SvNVX(sv));
+ SvIsUV_on(sv);
+ ret_iv_max:
+#ifdef IV_IS_QUAD
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "0x%" PERL_PRIx64 " 2iv(%" PERL_PRIu64 " => %" PERL_PRId64 ") (as unsigned)\n",
+ (UV)PTR_CAST sv,
+ (UV)SvUVX(sv), (IV)SvUVX(sv)));
+#else
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "0x%lx 2iv(%lu => %ld) (as unsigned)\n",
+ (unsigned long)sv,
+ (unsigned long)SvUVX(sv), (long)(IV)SvUVX(sv)));
+#endif
+ return (IV)SvUVX(sv);
+ }
+ }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ I32 numtype = looks_like_number(sv);
+
+ /* We want to avoid a possible problem when we cache an IV which
+ may be later translated to an NV, and the resulting NV is not
+ the translation of the initial data.
+
+ This means that if we cache such an IV, we need to cache the
+ NV as well. Moreover, we trade speed for space, and do not
+ cache the NV if not needed.
+ */
+ if (numtype & IS_NUMBER_NOT_IV) {
+ /* May be not an integer. Need to cache NV if we cache IV
+ * - otherwise future conversion to NV will be wrong. */
+ NV d;
+
+ d = Atof(SvPVX(sv));
+
+ if (SvTYPE(sv) < SVt_PVNV)
+ sv_upgrade(sv, SVt_PVNV);
+ SvNVX(sv) = d;
+ (void)SvNOK_on(sv);
+ (void)SvIOK_on(sv);
+#if defined(USE_LONG_DOUBLE)
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%" PERL_PRIgldbl ")\n",
+ (unsigned long)sv, SvNVX(sv)));
+#else
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%g)\n",
+ (unsigned long)sv, SvNVX(sv)));
+#endif
+ if (SvNVX(sv) < (NV)IV_MAX + 0.5)
+ SvIVX(sv) = I_V(SvNVX(sv));
+ else {
+ SvUVX(sv) = U_V(SvNVX(sv));
+ SvIsUV_on(sv);
+ goto ret_iv_max;
+ }
+ }
+ else if (numtype) {
+ /* The NV may be reconstructed from IV - safe to cache IV,
+ which may be calculated by atol(). */
+ if (SvTYPE(sv) == SVt_PV)
+ sv_upgrade(sv, SVt_PVIV);
+ (void)SvIOK_on(sv);
+ SvIVX(sv) = Atol(SvPVX(sv));
+ }
+ else { /* Not a number. Cache 0. */
+ dTHR;
+
+ if (SvTYPE(sv) < SVt_PVIV)
+ sv_upgrade(sv, SVt_PVIV);
+ SvIVX(sv) = 0;
+ (void)SvIOK_on(sv);
+ if (ckWARN(WARN_NUMERIC))
+ not_a_number(sv);
}
- SvIVX(sv) = (I32)atol(SvPVX(sv));
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvUPGRADE(sv, SVt_IV);
- SvIVX(sv) = 0;
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ if (SvTYPE(sv) < SVt_IV)
+ /* Typically the caller expects that sv_any is not NULL now. */
+ sv_upgrade(sv, SVt_IV);
+ return 0;
}
- SvIOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2iv(%d)\n",sv,SvIVX(sv)));
- return SvIVX(sv);
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n",
+ (unsigned long)sv,(long)SvIVX(sv)));
+ return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv);
}
-double
-sv_2nv(sv)
-register SV *sv;
+UV
+Perl_sv_2uv(pTHX_ register SV *sv)
{
if (!sv)
- return 0.0;
- if (SvMAGICAL(sv)) {
+ return 0;
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
+ if (SvIOKp(sv))
+ return SvUVX(sv);
if (SvNOKp(sv))
- return SvNVX(sv);
+ return U_V(SvNVX(sv));
if (SvPOKp(sv) && SvLEN(sv))
- return atof(SvPVX(sv));
- if (SvIOKp(sv))
- return (double)SvIVX(sv);
+ return asUV(sv);
+ if (!SvROK(sv)) {
+ if (!(SvFLAGS(sv) & SVs_PADTMP)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ return 0;
+ }
+ }
+ if (SvTHINKFIRST(sv)) {
+ if (SvROK(sv)) {
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer)))
+ return SvUV(tmpstr);
+ return (UV)PTR_CAST SvRV(sv);
+ }
+ if (SvREADONLY(sv) && !SvOK(sv)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ return 0;
+ }
+ }
+ if (SvIOKp(sv)) {
+ if (SvIsUV(sv)) {
+ return SvUVX(sv);
+ }
+ else {
+ return (UV)SvIVX(sv);
+ }
+ }
+ if (SvNOKp(sv)) {
+ /* We can cache the IV/UV value even if it not good enough
+ * to reconstruct NV, since the conversion to PV will prefer
+ * NV over IV/UV.
+ */
+ if (SvTYPE(sv) == SVt_NV)
+ sv_upgrade(sv, SVt_PVNV);
+ (void)SvIOK_on(sv);
+ if (SvNVX(sv) >= -0.5) {
+ SvIsUV_on(sv);
+ SvUVX(sv) = U_V(SvNVX(sv));
+ }
+ else {
+ SvIVX(sv) = I_V(SvNVX(sv));
+ ret_zero:
+#ifdef IV_IS_QUAD
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "0x%" PERL_PRIx64 " 2uv(%" PERL_PRId64 " => %" PERL_PRIu64 ") (as signed)\n",
+ (unsigned long)sv,(long)SvIVX(sv),
+ (long)(UV)SvIVX(sv)));
+#else
+ DEBUG_c(PerlIO_printf(Perl_debug_log,
+ "0x%lx 2uv(%ld => %lu) (as signed)\n",
+ (unsigned long)sv,(long)SvIVX(sv),
+ (long)(UV)SvIVX(sv)));
+#endif
+ return (UV)SvIVX(sv);
+ }
+ }
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ I32 numtype = looks_like_number(sv);
+
+ /* We want to avoid a possible problem when we cache a UV which
+ may be later translated to an NV, and the resulting NV is not
+ the translation of the initial data.
+
+ This means that if we cache such a UV, we need to cache the
+ NV as well. Moreover, we trade speed for space, and do not
+ cache the NV if not needed.
+ */
+ if (numtype & IS_NUMBER_NOT_IV) {
+ /* May be not an integer. Need to cache NV if we cache IV
+ * - otherwise future conversion to NV will be wrong. */
+ NV d;
+
+ d = Atof(SvPVX(sv));
+
+ if (SvTYPE(sv) < SVt_PVNV)
+ sv_upgrade(sv, SVt_PVNV);
+ SvNVX(sv) = d;
+ (void)SvNOK_on(sv);
+ (void)SvIOK_on(sv);
+#if defined(USE_LONG_DOUBLE)
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%" PERL_PRIgldbl ")\n",
+ (unsigned long)sv, SvNVX(sv)));
+#else
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%g)\n",
+ (unsigned long)sv, SvNVX(sv)));
+#endif
+ if (SvNVX(sv) < -0.5) {
+ SvIVX(sv) = I_V(SvNVX(sv));
+ goto ret_zero;
+ } else {
+ SvUVX(sv) = U_V(SvNVX(sv));
+ SvIsUV_on(sv);
+ }
+ }
+ else if (numtype & IS_NUMBER_NEG) {
+ /* The NV may be reconstructed from IV - safe to cache IV,
+ which may be calculated by atol(). */
+ if (SvTYPE(sv) == SVt_PV)
+ sv_upgrade(sv, SVt_PVIV);
+ (void)SvIOK_on(sv);
+ SvIVX(sv) = (IV)Atol(SvPVX(sv));
+ }
+ else if (numtype) { /* Non-negative */
+ /* The NV may be reconstructed from UV - safe to cache UV,
+ which may be calculated by strtoul()/atol. */
+ if (SvTYPE(sv) == SVt_PV)
+ sv_upgrade(sv, SVt_PVIV);
+ (void)SvIOK_on(sv);
+ (void)SvIsUV_on(sv);
+#ifdef HAS_STRTOUL
+ SvUVX(sv) = Strtoul(SvPVX(sv), Null(char**), 10);
+#else /* no atou(), but we know the number fits into IV... */
+ /* The only problem may be if it is negative... */
+ SvUVX(sv) = (UV)Atol(SvPVX(sv));
+#endif
+ }
+ else { /* Not a number. Cache 0. */
+ dTHR;
+
+ if (SvTYPE(sv) < SVt_PVIV)
+ sv_upgrade(sv, SVt_PVIV);
+ SvUVX(sv) = 0; /* We assume that 0s have the
+ same bitmap in IV and UV. */
+ (void)SvIOK_on(sv);
+ (void)SvIsUV_on(sv);
+ if (ckWARN(WARN_NUMERIC))
+ not_a_number(sv);
+ }
+ }
+ else {
+ if (!(SvFLAGS(sv) & SVs_PADTMP)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ if (SvTYPE(sv) < SVt_IV)
+ /* Typically the caller expects that sv_any is not NULL now. */
+ sv_upgrade(sv, SVt_IV);
return 0;
}
+
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n",
+ (unsigned long)sv,SvUVX(sv)));
+ return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv);
+}
+
+NV
+Perl_sv_2nv(pTHX_ register SV *sv)
+{
+ if (!sv)
+ return 0.0;
+ if (SvGMAGICAL(sv)) {
+ mg_get(sv);
+ if (SvNOKp(sv))
+ return SvNVX(sv);
+ if (SvPOKp(sv) && SvLEN(sv)) {
+ dTHR;
+ if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ return Atof(SvPVX(sv));
+ }
+ if (SvIOKp(sv)) {
+ if (SvIsUV(sv))
+ return (NV)SvUVX(sv);
+ else
+ return (NV)SvIVX(sv);
+ }
+ if (!SvROK(sv)) {
+ if (!(SvFLAGS(sv) & SVs_PADTMP)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ return 0;
+ }
+ }
if (SvTHINKFIRST(sv)) {
- if (SvROK(sv))
- return (double)(unsigned long)SvRV(sv);
- if (SvREADONLY(sv)) {
- if (SvPOK(sv) && SvLEN(sv))
- return atof(SvPVX(sv));
- if (dowarn)
- warn("Use of uninitialized variable");
+ if (SvROK(sv)) {
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)))
+ return SvNV(tmpstr);
+ return (NV)(PTRV)SvRV(sv);
+ }
+ if (SvREADONLY(sv) && !SvOK(sv)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
return 0.0;
}
}
sv_upgrade(sv, SVt_PVNV);
else
sv_upgrade(sv, SVt_NV);
- DEBUG_c((stderr,"0x%lx num(%g)\n",sv,SvNVX(sv)));
- return SvNVX(sv);
+#if defined(USE_LONG_DOUBLE)
+ DEBUG_c({
+ RESTORE_NUMERIC_STANDARD();
+ PerlIO_printf(Perl_debug_log, "0x%lx num(%" PERL_PRIgldbl ")\n",
+ (unsigned long)sv, SvNVX(sv));
+ RESTORE_NUMERIC_LOCAL();
+ });
+#else
+ DEBUG_c({
+ RESTORE_NUMERIC_STANDARD();
+ PerlIO_printf(Perl_debug_log, "0x%lx num(%g)\n",
+ (unsigned long)sv, SvNVX(sv));
+ RESTORE_NUMERIC_LOCAL();
+ });
+#endif
}
else if (SvTYPE(sv) < SVt_PVNV)
sv_upgrade(sv, SVt_PVNV);
- if (SvIOK(sv) &&
- (!SvPOK(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
+ if (SvIOKp(sv) &&
+ (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv)))
{
- SvNVX(sv) = (double)SvIVX(sv);
+ SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv);
}
- else if (SvPOK(sv) && SvLEN(sv)) {
- if (dowarn && !SvIOK(sv) && !looks_like_number(sv)) {
- if (op)
- warn("Argument wasn't numeric for \"%s\"",op_name[op->op_type]);
- else
- warn("Argument wasn't numeric");
- }
- SvNVX(sv) = atof(SvPVX(sv));
+ else if (SvPOKp(sv) && SvLEN(sv)) {
+ dTHR;
+ if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv))
+ not_a_number(sv);
+ SvNVX(sv) = Atof(SvPVX(sv));
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- SvNVX(sv) = 0.0;
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ if (SvTYPE(sv) < SVt_NV)
+ /* Typically the caller expects that sv_any is not NULL now. */
+ sv_upgrade(sv, SVt_NV);
+ return 0.0;
}
SvNOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2nv(%g)\n",sv,SvNVX(sv)));
+#if defined(USE_LONG_DOUBLE)
+ DEBUG_c({
+ RESTORE_NUMERIC_STANDARD();
+ PerlIO_printf(Perl_debug_log, "0x%lx 2nv(%" PERL_PRIgldbl ")\n",
+ (unsigned long)sv, SvNVX(sv));
+ RESTORE_NUMERIC_LOCAL();
+ });
+#else
+ DEBUG_c({
+ RESTORE_NUMERIC_STANDARD();
+ PerlIO_printf(Perl_debug_log, "0x%lx 1nv(%g)\n",
+ (unsigned long)sv, SvNVX(sv));
+ RESTORE_NUMERIC_LOCAL();
+ });
+#endif
return SvNVX(sv);
}
+STATIC IV
+S_asIV(pTHX_ SV *sv)
+{
+ I32 numtype = looks_like_number(sv);
+ NV d;
+
+ if (numtype & IS_NUMBER_TO_INT_BY_ATOL)
+ return Atol(SvPVX(sv));
+ if (!numtype) {
+ dTHR;
+ if (ckWARN(WARN_NUMERIC))
+ not_a_number(sv);
+ }
+ d = Atof(SvPVX(sv));
+ return I_V(d);
+}
+
+STATIC UV
+S_asUV(pTHX_ SV *sv)
+{
+ I32 numtype = looks_like_number(sv);
+
+#ifdef HAS_STRTOUL
+ if (numtype & IS_NUMBER_TO_INT_BY_ATOL)
+ return Strtoul(SvPVX(sv), Null(char**), 10);
+#endif
+ if (!numtype) {
+ dTHR;
+ if (ckWARN(WARN_NUMERIC))
+ not_a_number(sv);
+ }
+ return U_V(Atof(SvPVX(sv)));
+}
+
+/*
+ * Returns a combination of (advisory only - can get false negatives)
+ * IS_NUMBER_TO_INT_BY_ATOL, IS_NUMBER_TO_INT_BY_ATOF, IS_NUMBER_NOT_IV,
+ * IS_NUMBER_NEG
+ * 0 if does not look like number.
+ *
+ * In fact possible values are 0 and
+ * IS_NUMBER_TO_INT_BY_ATOL 123
+ * IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV 123.1
+ * IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV 123e0
+ * with a possible addition of IS_NUMBER_NEG.
+ */
+
+I32
+Perl_looks_like_number(pTHX_ SV *sv)
+{
+ register char *s;
+ register char *send;
+ register char *sbegin;
+ register char *nbegin;
+ I32 numtype = 0;
+ STRLEN len;
+
+ if (SvPOK(sv)) {
+ sbegin = SvPVX(sv);
+ len = SvCUR(sv);
+ }
+ else if (SvPOKp(sv))
+ sbegin = SvPV(sv, len);
+ else
+ return 1;
+ send = sbegin + len;
+
+ s = sbegin;
+ while (isSPACE(*s))
+ s++;
+ if (*s == '-') {
+ s++;
+ numtype = IS_NUMBER_NEG;
+ }
+ else if (*s == '+')
+ s++;
+
+ nbegin = s;
+ /*
+ * we return IS_NUMBER_TO_INT_BY_ATOL if the number can be converted
+ * to _integer_ with atol() and IS_NUMBER_TO_INT_BY_ATOF if you need
+ * (int)atof().
+ */
+
+ /* next must be digit or the radix separator */
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+
+ if (s - nbegin >= TYPE_DIGITS(IV)) /* Cannot cache ato[ul]() */
+ numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV;
+ else
+ numtype |= IS_NUMBER_TO_INT_BY_ATOL;
+
+ if (*s == '.'
+#ifdef USE_LOCALE_NUMERIC
+ || IS_NUMERIC_RADIX(*s)
+#endif
+ ) {
+ s++;
+ numtype |= IS_NUMBER_NOT_IV;
+ while (isDIGIT(*s)) /* optional digits after the radix */
+ s++;
+ }
+ }
+ else if (*s == '.'
+#ifdef USE_LOCALE_NUMERIC
+ || IS_NUMERIC_RADIX(*s)
+#endif
+ ) {
+ s++;
+ numtype |= IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV;
+ /* no digits before the radix means we need digits after it */
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+ }
+ else
+ return 0;
+ }
+ else
+ return 0;
+
+ /* we can have an optional exponent part */
+ if (*s == 'e' || *s == 'E') {
+ numtype &= ~IS_NUMBER_NEG;
+ numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV;
+ s++;
+ if (*s == '+' || *s == '-')
+ s++;
+ if (isDIGIT(*s)) {
+ do {
+ s++;
+ } while (isDIGIT(*s));
+ }
+ else
+ return 0;
+ }
+ while (isSPACE(*s))
+ s++;
+ if (s >= send)
+ return numtype;
+ if (len == 10 && memEQ(sbegin, "0 but true", 10))
+ return IS_NUMBER_TO_INT_BY_ATOL;
+ return 0;
+}
+
+char *
+Perl_sv_2pv_nolen(pTHX_ register SV *sv)
+{
+ STRLEN n_a;
+ return sv_2pv(sv, &n_a);
+}
+
+/* We assume that buf is at least TYPE_CHARS(UV) long. */
+static char *
+uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob)
+{
+ STRLEN len;
+ char *ptr = buf + TYPE_CHARS(UV);
+ char *ebuf = ptr;
+ int sign;
+ char *p;
+
+ if (is_uv)
+ sign = 0;
+ else if (iv >= 0) {
+ uv = iv;
+ sign = 0;
+ } else {
+ uv = -iv;
+ sign = 1;
+ }
+ do {
+ *--ptr = '0' + (uv % 10);
+ } while (uv /= 10);
+ if (sign)
+ *--ptr = '-';
+ *peob = ebuf;
+ return ptr;
+}
+
char *
-sv_2pv(sv, lp)
-register SV *sv;
-STRLEN *lp;
+Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp)
{
register char *s;
int olderrno;
+ SV *tsv;
+ char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */
+ char *tmpbuf = tbuf;
if (!sv) {
*lp = 0;
return "";
}
- if (SvMAGICAL(sv)) {
+ if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvPOKp(sv)) {
*lp = SvCUR(sv);
return SvPVX(sv);
}
if (SvIOKp(sv)) {
- (void)sprintf(tokenbuf,"%ld",SvIVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+#ifdef IV_IS_QUAD
+ if (SvIsUV(sv))
+ (void)sprintf(tmpbuf,"%" PERL_PRIu64,(UV)SvUVX(sv));
+ else
+ (void)sprintf(tmpbuf,"%" PERL_PRId64,(IV)SvIVX(sv));
+#else
+ if (SvIsUV(sv))
+ (void)sprintf(tmpbuf,"%lu",(unsigned long)SvUVX(sv));
+ else
+ (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv));
+#endif
+ tsv = Nullsv;
+ goto tokensave;
}
if (SvNOKp(sv)) {
- (void)sprintf(tokenbuf,"%.20g",SvNVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
+ Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf);
+ tsv = Nullsv;
+ goto tokensave;
}
- *lp = 0;
- return "";
+ if (!SvROK(sv)) {
+ if (!(SvFLAGS(sv) & SVs_PADTMP)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing)
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ *lp = 0;
+ return "";
+ }
}
if (SvTHINKFIRST(sv)) {
if (SvROK(sv)) {
+ SV* tmpstr;
+ if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)))
+ return SvPV(tmpstr,*lp);
sv = (SV*)SvRV(sv);
if (!sv)
s = "NULLREF";
else {
+ MAGIC *mg;
+
switch (SvTYPE(sv)) {
+ case SVt_PVMG:
+ if ( ((SvFLAGS(sv) &
+ (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG))
+ == (SVs_OBJECT|SVs_RMG))
+ && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp")
+ && (mg = mg_find(sv, 'r'))) {
+ dTHR;
+ regexp *re = (regexp *)mg->mg_obj;
+
+ if (!mg->mg_ptr) {
+ char *fptr = "msix";
+ char reflags[6];
+ char ch;
+ int left = 0;
+ int right = 4;
+ U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12;
+
+ while(ch = *fptr++) {
+ if(reganch & 1) {
+ reflags[left++] = ch;
+ }
+ else {
+ reflags[right--] = ch;
+ }
+ reganch >>= 1;
+ }
+ if(left != 4) {
+ reflags[left] = '-';
+ left = 5;
+ }
+
+ mg->mg_len = re->prelen + 4 + left;
+ New(616, mg->mg_ptr, mg->mg_len + 1 + left, char);
+ Copy("(?", mg->mg_ptr, 2, char);
+ Copy(reflags, mg->mg_ptr+2, left, char);
+ Copy(":", mg->mg_ptr+left+2, 1, char);
+ Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char);
+ mg->mg_ptr[mg->mg_len - 1] = ')';
+ mg->mg_ptr[mg->mg_len] = 0;
+ }
+ PL_reginterp_cnt += re->program[0].next_off;
+ *lp = mg->mg_len;
+ return mg->mg_ptr;
+ }
+ /* Fall through */
case SVt_NULL:
case SVt_IV:
case SVt_NV:
case SVt_PV:
case SVt_PVIV:
case SVt_PVNV:
- case SVt_PVBM:
- case SVt_PVMG: s = "SCALAR"; break;
+ case SVt_PVBM: s = "SCALAR"; break;
case SVt_PVLV: s = "LVALUE"; break;
case SVt_PVAV: s = "ARRAY"; break;
case SVt_PVHV: s = "HASH"; break;
case SVt_PVCV: s = "CODE"; break;
case SVt_PVGV: s = "GLOB"; break;
- case SVt_PVFM: s = "FORMATLINE"; break;
+ case SVt_PVFM: s = "FORMAT"; break;
+ case SVt_PVIO: s = "IO"; break;
default: s = "UNKNOWN"; break;
}
+ tsv = NEWSV(0,0);
if (SvOBJECT(sv))
- sprintf(tokenbuf, "%s=%s(0x%lx)",
- HvNAME(SvSTASH(sv)), s, (unsigned long)sv);
+ Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s);
else
- sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv);
- s = tokenbuf;
+ sv_setpv(tsv, s);
+#ifdef IV_IS_QUAD
+ Perl_sv_catpvf(aTHX_ tsv, "(0x%" PERL_PRIx64")", (UV)PTR_CAST sv);
+#else
+ Perl_sv_catpvf(aTHX_ tsv, "(0x%lx)", (unsigned long)sv);
+#endif
+ goto tokensaveref;
}
*lp = strlen(s);
return s;
}
- if (SvREADONLY(sv)) {
- if (SvIOK(sv)) {
- (void)sprintf(tokenbuf,"%ld",SvIVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
- }
- if (SvNOK(sv)) {
- (void)sprintf(tokenbuf,"%.20g",SvNVX(sv));
- *lp = strlen(tokenbuf);
- return tokenbuf;
- }
- if (dowarn)
- warn("Use of uninitialized variable");
+ if (SvREADONLY(sv) && !SvOK(sv)) {
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED))
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
*lp = 0;
return "";
}
}
- if (!SvUPGRADE(sv, SVt_PV))
- return 0;
- if (SvNOK(sv)) {
+ if (SvNOKp(sv)) { /* See note in sv_2uv() */
+ /* XXXX 64-bit? IV may have better precision... */
+ /* I tried changing this for to be 64-bit-aware and
+ * the t/op/numconvert.t became very, very, angry.
+ * --jhi Sep 1999 */
if (SvTYPE(sv) < SVt_PVNV)
sv_upgrade(sv, SVt_PVNV);
SvGROW(sv, 28);
s = SvPVX(sv);
olderrno = errno; /* some Xenix systems wipe out errno here */
-#if defined(scs) && defined(ns32000)
- gcvt(SvNVX(sv),20,s);
-#else
#ifdef apollo
if (SvNVX(sv) == 0.0)
(void)strcpy(s,"0");
else
#endif /*apollo*/
- (void)sprintf(s,"%.20g",SvNVX(sv));
-#endif /*scs*/
+ {
+ Gconvert(SvNVX(sv), NV_DIG, 0, s);
+ }
errno = olderrno;
+#ifdef FIXNEGATIVEZERO
+ if (*s == '-' && s[1] == '0' && !s[2])
+ strcpy(s,"0");
+#endif
while (*s) s++;
#ifdef hcx
if (s[-1] == '.')
- s--;
+ *--s = '\0';
#endif
}
- else if (SvIOK(sv)) {
+ else if (SvIOKp(sv)) {
+ U32 isIOK = SvIOK(sv);
+ U32 isUIOK = SvIsUV(sv);
+ char buf[TYPE_CHARS(UV)];
+ char *ebuf, *ptr;
+
if (SvTYPE(sv) < SVt_PVIV)
sv_upgrade(sv, SVt_PVIV);
- SvGROW(sv, 11);
- s = SvPVX(sv);
- olderrno = errno; /* some Xenix systems wipe out errno here */
- (void)sprintf(s,"%ld",SvIVX(sv));
- errno = olderrno;
- while (*s) s++;
+ if (isUIOK)
+ ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf);
+ else
+ ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf);
+ SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */
+ Move(ptr,SvPVX(sv),ebuf - ptr,char);
+ SvCUR_set(sv, ebuf - ptr);
+ s = SvEND(sv);
+ *s = '\0';
+ if (isIOK)
+ SvIOK_on(sv);
+ else
+ SvIOKp_on(sv);
+ if (isUIOK)
+ SvIsUV_on(sv);
+ SvPOK_on(sv);
}
else {
- if (dowarn)
- warn("Use of uninitialized variable");
- sv_grow(sv, 1);
- s = SvPVX(sv);
+ dTHR;
+ if (ckWARN(WARN_UNINITIALIZED)
+ && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP))
+ {
+ Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit);
+ }
+ *lp = 0;
+ if (SvTYPE(sv) < SVt_PV)
+ /* Typically the caller expects that sv_any is not NULL now. */
+ sv_upgrade(sv, SVt_PV);
+ return "";
}
- *s = '\0';
*lp = s - SvPVX(sv);
SvCUR_set(sv, *lp);
SvPOK_on(sv);
- DEBUG_c((stderr,"0x%lx 2pv(%s)\n",sv,SvPVX(sv)));
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
+ (unsigned long)sv,SvPVX(sv)));
return SvPVX(sv);
+
+ tokensave:
+ if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */
+ /* Sneaky stuff here */
+
+ tokensaveref:
+ if (!tsv)
+ tsv = newSVpv(tmpbuf, 0);
+ sv_2mortal(tsv);
+ *lp = SvCUR(tsv);
+ return SvPVX(tsv);
+ }
+ else {
+ STRLEN len;
+ char *t;
+
+ if (tsv) {
+ sv_2mortal(tsv);
+ t = SvPVX(tsv);
+ len = SvCUR(tsv);
+ }
+ else {
+ t = tmpbuf;
+ len = strlen(tmpbuf);
+ }
+#ifdef FIXNEGATIVEZERO
+ if (len == 2 && t[0] == '-' && t[1] == '0') {
+ t = "0";
+ len = 1;
+ }
+#endif
+ (void)SvUPGRADE(sv, SVt_PV);
+ *lp = len;
+ s = SvGROW(sv, len + 1);
+ SvCUR_set(sv, len);
+ (void)strcpy(s, t);
+ SvPOKp_on(sv);
+ return s;
+ }
}
/* This function is only called on magical items */
bool
-sv_2bool(sv)
-register SV *sv;
+Perl_sv_2bool(pTHX_ register SV *sv)
{
- if (SvMAGICAL(sv))
+ if (SvGMAGICAL(sv))
mg_get(sv);
- if (SvROK(sv))
- return SvRV(sv) != 0;
+ if (!SvOK(sv))
+ return 0;
+ if (SvROK(sv)) {
+ dTHR;
+ SV* tmpsv;
+ if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_)))
+ return SvTRUE(tmpsv);
+ return SvRV(sv) != 0;
+ }
if (SvPOKp(sv)) {
- register XPV* Xpv;
- if ((Xpv = (XPV*)SvANY(sv)) &&
- (*Xpv->xpv_pv > '0' ||
- Xpv->xpv_cur > 1 ||
- (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
+ register XPV* Xpvtmp;
+ if ((Xpvtmp = (XPV*)SvANY(sv)) &&
+ (*Xpvtmp->xpv_pv > '0' ||
+ Xpvtmp->xpv_cur > 1 ||
+ (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0')))
return 1;
else
return 0;
*/
void
-sv_setsv(dstr,sstr)
-SV *dstr;
-register SV *sstr;
+Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr)
{
- int flags;
+ dTHR;
+ register U32 sflags;
+ register int dtype;
+ register int stype;
if (sstr == dstr)
return;
- if (SvTHINKFIRST(dstr)) {
- if (SvREADONLY(dstr))
- croak(no_modify);
- if (SvROK(dstr))
- sv_unref(dstr);
- }
+ SV_CHECK_THINKFIRST(dstr);
if (!sstr)
- sstr = &sv_undef;
+ sstr = &PL_sv_undef;
+ stype = SvTYPE(sstr);
+ dtype = SvTYPE(dstr);
+
+ SvAMAGIC_off(dstr);
/* There's a lot of redundancy below but we're going for speed here */
- switch (SvTYPE(sstr)) {
+ switch (stype) {
case SVt_NULL:
- SvOK_off(dstr);
- return;
- case SVt_IV:
- if (SvTYPE(dstr) < SVt_IV)
- sv_upgrade(dstr, SVt_IV);
- else if (SvTYPE(dstr) == SVt_PV)
- sv_upgrade(dstr, SVt_PVIV);
- else if (SvTYPE(dstr) == SVt_NV)
- sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
+ undef_sstr:
+ if (dtype != SVt_PVGV) {
+ (void)SvOK_off(dstr);
+ return;
+ }
break;
+ case SVt_IV:
+ if (SvIOK(sstr)) {
+ switch (dtype) {
+ case SVt_NULL:
+ sv_upgrade(dstr, SVt_IV);
+ break;
+ case SVt_NV:
+ sv_upgrade(dstr, SVt_PVNV);
+ break;
+ case SVt_RV:
+ case SVt_PV:
+ sv_upgrade(dstr, SVt_PVIV);
+ break;
+ }
+ (void)SvIOK_only(dstr);
+ SvIVX(dstr) = SvIVX(sstr);
+ if (SvIsUV(sstr))
+ SvIsUV_on(dstr);
+ SvTAINT(dstr);
+ return;
+ }
+ goto undef_sstr;
+
case SVt_NV:
- if (SvTYPE(dstr) < SVt_NV)
- sv_upgrade(dstr, SVt_NV);
- else if (SvTYPE(dstr) == SVt_PV)
- sv_upgrade(dstr, SVt_PVNV);
- else if (SvTYPE(dstr) == SVt_PVIV)
- sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
- break;
+ if (SvNOK(sstr)) {
+ switch (dtype) {
+ case SVt_NULL:
+ case SVt_IV:
+ sv_upgrade(dstr, SVt_NV);
+ break;
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
+ sv_upgrade(dstr, SVt_PVNV);
+ break;
+ }
+ SvNVX(dstr) = SvNVX(sstr);
+ (void)SvNOK_only(dstr);
+ SvTAINT(dstr);
+ return;
+ }
+ goto undef_sstr;
+
case SVt_RV:
- if (SvTYPE(dstr) < SVt_RV)
+ if (dtype < SVt_RV)
sv_upgrade(dstr, SVt_RV);
- flags = SvFLAGS(sstr);
+ else if (dtype == SVt_PVGV &&
+ SvTYPE(SvRV(sstr)) == SVt_PVGV) {
+ sstr = SvRV(sstr);
+ if (sstr == dstr) {
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_on(dstr);
+ GvMULTI_on(dstr);
+ return;
+ }
+ goto glob_assign;
+ }
break;
case SVt_PV:
- if (SvTYPE(dstr) < SVt_PV)
+ case SVt_PVFM:
+ if (dtype < SVt_PV)
sv_upgrade(dstr, SVt_PV);
- flags = SvFLAGS(sstr);
break;
case SVt_PVIV:
- if (SvTYPE(dstr) < SVt_PVIV)
+ if (dtype < SVt_PVIV)
sv_upgrade(dstr, SVt_PVIV);
- flags = SvFLAGS(sstr);
break;
case SVt_PVNV:
- if (SvTYPE(dstr) < SVt_PVNV)
+ if (dtype < SVt_PVNV)
sv_upgrade(dstr, SVt_PVNV);
- flags = SvFLAGS(sstr);
break;
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVIO:
+ if (PL_op)
+ Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0),
+ PL_op_name[PL_op->op_type]);
+ else
+ Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0));
+ break;
+
case SVt_PVGV:
- if (SvTYPE(dstr) <= SVt_PVGV) {
- if (SvTYPE(dstr) < SVt_PVGV)
+ if (dtype <= SVt_PVGV) {
+ glob_assign:
+ if (dtype != SVt_PVGV) {
+ char *name = GvNAME(sstr);
+ STRLEN len = GvNAMELEN(sstr);
sv_upgrade(dstr, SVt_PVGV);
- SvOK_off(dstr);
- if (!GvAV(sstr))
- gv_AVadd(sstr);
- if (!GvHV(sstr))
- gv_HVadd(sstr);
- if (!GvIO(sstr))
- GvIO(sstr) = newIO();
- if (GvGP(dstr))
- gp_free(dstr);
+ sv_magic(dstr, dstr, '*', name, len);
+ GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr));
+ GvNAME(dstr) = savepvn(name, len);
+ GvNAMELEN(dstr) = len;
+ SvFAKE_on(dstr); /* can coerce to non-glob */
+ }
+ /* ahem, death to those who redefine active sort subs */
+ else if (PL_curstackinfo->si_type == PERLSI_SORT
+ && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr)))
+ Perl_croak(aTHX_ "Can't redefine active sort subroutine %s",
+ GvNAME(dstr));
+ (void)SvOK_off(dstr);
+ GvINTRO_off(dstr); /* one-shot flag */
+ gp_free((GV*)dstr);
GvGP(dstr) = gp_ref(GvGP(sstr));
- SvTAINT(sstr);
+ SvTAINT(dstr);
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_on(dstr);
+ GvMULTI_on(dstr);
return;
}
/* FALL THROUGH */
default:
- if (SvTYPE(dstr) < SvTYPE(sstr))
- sv_upgrade(dstr, SvTYPE(sstr));
- if (SvMAGICAL(sstr)) {
+ if (SvGMAGICAL(sstr)) {
mg_get(sstr);
- flags = SvPRIVATE(sstr);
+ if (SvTYPE(sstr) != stype) {
+ stype = SvTYPE(sstr);
+ if (stype == SVt_PVGV && dtype <= SVt_PVGV)
+ goto glob_assign;
+ }
}
+ if (stype == SVt_PVLV)
+ (void)SvUPGRADE(dstr, SVt_PVNV);
else
- flags = SvFLAGS(sstr);
+ (void)SvUPGRADE(dstr, stype);
}
- SvPRIVATE(dstr) = SvPRIVATE(sstr) & ~(SVf_IOK|SVf_POK|SVf_NOK);
-
- if (SvROK(sstr)) {
- SvOK_off(dstr);
- if (SvTYPE(dstr) >= SVt_PV && SvPVX(dstr))
- Safefree(SvPVX(dstr));
- SvRV(dstr) = sv_ref(SvRV(sstr));
+ sflags = SvFLAGS(sstr);
+
+ if (sflags & SVf_ROK) {
+ if (dtype >= SVt_PV) {
+ if (dtype == SVt_PVGV) {
+ SV *sref = SvREFCNT_inc(SvRV(sstr));
+ SV *dref = 0;
+ int intro = GvINTRO(dstr);
+
+ if (intro) {
+ GP *gp;
+ GvGP(dstr)->gp_refcnt--;
+ GvINTRO_off(dstr); /* one-shot flag */
+ Newz(602,gp, 1, GP);
+ GvGP(dstr) = gp_ref(gp);
+ GvSV(dstr) = NEWSV(72,0);
+ GvLINE(dstr) = PL_curcop->cop_line;
+ GvEGV(dstr) = (GV*)dstr;
+ }
+ GvMULTI_on(dstr);
+ switch (SvTYPE(sref)) {
+ case SVt_PVAV:
+ if (intro)
+ SAVESPTR(GvAV(dstr));
+ else
+ dref = (SV*)GvAV(dstr);
+ GvAV(dstr) = (AV*)sref;
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_AV_on(dstr);
+ break;
+ case SVt_PVHV:
+ if (intro)
+ SAVESPTR(GvHV(dstr));
+ else
+ dref = (SV*)GvHV(dstr);
+ GvHV(dstr) = (HV*)sref;
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_HV_on(dstr);
+ break;
+ case SVt_PVCV:
+ if (intro) {
+ if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) {
+ SvREFCNT_dec(GvCV(dstr));
+ GvCV(dstr) = Nullcv;
+ GvCVGEN(dstr) = 0; /* Switch off cacheness. */
+ PL_sub_generation++;
+ }
+ SAVESPTR(GvCV(dstr));
+ }
+ else
+ dref = (SV*)GvCV(dstr);
+ if (GvCV(dstr) != (CV*)sref) {
+ CV* cv = GvCV(dstr);
+ if (cv) {
+ if (!GvCVGEN((GV*)dstr) &&
+ (CvROOT(cv) || CvXSUB(cv)))
+ {
+ SV *const_sv = cv_const_sv(cv);
+ bool const_changed = TRUE;
+ if(const_sv)
+ const_changed = sv_cmp(const_sv,
+ op_const_sv(CvSTART((CV*)sref),
+ Nullcv));
+ /* ahem, death to those who redefine
+ * active sort subs */
+ if (PL_curstackinfo->si_type == PERLSI_SORT &&
+ PL_sortcop == CvSTART(cv))
+ Perl_croak(aTHX_
+ "Can't redefine active sort subroutine %s",
+ GvENAME((GV*)dstr));
+ if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) {
+ if (!(CvGV(cv) && GvSTASH(CvGV(cv))
+ && HvNAME(GvSTASH(CvGV(cv)))
+ && strEQ(HvNAME(GvSTASH(CvGV(cv))),
+ "autouse")))
+ Perl_warner(aTHX_ WARN_REDEFINE, const_sv ?
+ "Constant subroutine %s redefined"
+ : "Subroutine %s redefined",
+ GvENAME((GV*)dstr));
+ }
+ }
+ cv_ckproto(cv, (GV*)dstr,
+ SvPOK(sref) ? SvPVX(sref) : Nullch);
+ }
+ GvCV(dstr) = (CV*)sref;
+ GvCVGEN(dstr) = 0; /* Switch off cacheness. */
+ GvASSUMECV_on(dstr);
+ PL_sub_generation++;
+ }
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_CV_on(dstr);
+ break;
+ case SVt_PVIO:
+ if (intro)
+ SAVESPTR(GvIOp(dstr));
+ else
+ dref = (SV*)GvIOp(dstr);
+ GvIOp(dstr) = (IO*)sref;
+ break;
+ default:
+ if (intro)
+ SAVESPTR(GvSV(dstr));
+ else
+ dref = (SV*)GvSV(dstr);
+ GvSV(dstr) = sref;
+ if (PL_curcop->cop_stash != GvSTASH(dstr))
+ GvIMPORTED_SV_on(dstr);
+ break;
+ }
+ if (dref)
+ SvREFCNT_dec(dref);
+ if (intro)
+ SAVEFREESV(sref);
+ SvTAINT(dstr);
+ return;
+ }
+ if (SvPVX(dstr)) {
+ (void)SvOOK_off(dstr); /* backoff */
+ if (SvLEN(dstr))
+ Safefree(SvPVX(dstr));
+ SvLEN(dstr)=SvCUR(dstr)=0;
+ }
+ }
+ (void)SvOK_off(dstr);
+ SvRV(dstr) = SvREFCNT_inc(SvRV(sstr));
SvROK_on(dstr);
- if (flags & SVf_NOK) {
+ if (sflags & SVp_NOK) {
SvNOK_on(dstr);
SvNVX(dstr) = SvNVX(sstr);
}
- if (flags & SVf_IOK) {
- SvIOK_on(dstr);
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
+ if (SvIsUV(sstr))
+ SvIsUV_on(dstr);
+ }
+ if (SvAMAGIC(sstr)) {
+ SvAMAGIC_on(dstr);
}
}
- else if (flags & SVf_POK) {
+ else if (sflags & SVp_POK) {
/*
* Check to see if we can just swipe the string. If so, it's a
* has to be allocated and SvPVX(sstr) has to be freed.
*/
- if (SvTEMP(sstr)) { /* slated for free anyway? */
- if (SvPOK(dstr)) {
- SvOOK_off(dstr);
- Safefree(SvPVX(dstr));
+ if (SvTEMP(sstr) && /* slated for free anyway? */
+ SvREFCNT(sstr) == 1 && /* and no other references to it? */
+ !(sflags & SVf_OOK)) /* and not involved in OOK hack? */
+ {
+ if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */
+ if (SvOOK(dstr)) {
+ SvFLAGS(dstr) &= ~SVf_OOK;
+ Safefree(SvPVX(dstr) - SvIVX(dstr));
+ }
+ else if (SvLEN(dstr))
+ Safefree(SvPVX(dstr));
}
+ (void)SvPOK_only(dstr);
SvPV_set(dstr, SvPVX(sstr));
SvLEN_set(dstr, SvLEN(sstr));
SvCUR_set(dstr, SvCUR(sstr));
- SvPOK_only(dstr);
SvTEMP_off(dstr);
+ (void)SvOK_off(sstr);
SvPV_set(sstr, Nullch);
SvLEN_set(sstr, 0);
- SvPOK_off(sstr); /* wipe out any weird flags */
- SvPVX(sstr) = 0; /* so sstr frees uneventfully */
+ SvCUR_set(sstr, 0);
+ SvTEMP_off(sstr);
}
else { /* have to copy actual string */
- if (SvPVX(dstr)) { /* XXX ck type */
- SvOOK_off(dstr);
- }
- sv_setpvn(dstr,SvPVX(sstr),SvCUR(sstr));
+ STRLEN len = SvCUR(sstr);
+
+ SvGROW(dstr, len + 1); /* inlined from sv_setpvn */
+ Move(SvPVX(sstr),SvPVX(dstr),len,char);
+ SvCUR_set(dstr, len);
+ *SvEND(dstr) = '\0';
+ (void)SvPOK_only(dstr);
}
/*SUPPRESS 560*/
- if (flags & SVf_NOK) {
+ if (sflags & SVp_NOK) {
SvNOK_on(dstr);
SvNVX(dstr) = SvNVX(sstr);
}
- if (flags & SVf_IOK) {
- SvIOK_on(dstr);
+ if (sflags & SVp_IOK) {
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
+ if (SvIsUV(sstr))
+ SvIsUV_on(dstr);
}
}
- else if (flags & SVf_NOK) {
+ else if (sflags & SVp_NOK) {
SvNVX(dstr) = SvNVX(sstr);
- SvNOK_only(dstr);
+ (void)SvNOK_only(dstr);
if (SvIOK(sstr)) {
- SvIOK_on(dstr);
+ (void)SvIOK_on(dstr);
SvIVX(dstr) = SvIVX(sstr);
+ /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */
+ if (SvIsUV(sstr))
+ SvIsUV_on(dstr);
}
}
- else if (flags & SVf_IOK) {
- SvIOK_only(dstr);
+ else if (sflags & SVp_IOK) {
+ (void)SvIOK_only(dstr);
SvIVX(dstr) = SvIVX(sstr);
+ if (SvIsUV(sstr))
+ SvIsUV_on(dstr);
}
else {
- SvOK_off(dstr);
+ if (dtype == SVt_PVGV) {
+ if (ckWARN(WARN_UNSAFE))
+ Perl_warner(aTHX_ WARN_UNSAFE, "Undefined value assigned to typeglob");
+ }
+ else
+ (void)SvOK_off(dstr);
}
SvTAINT(dstr);
}
void
-sv_setpvn(sv,ptr,len)
-register SV *sv;
-register char *ptr;
-register STRLEN len;
+Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr)
{
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- if (!ptr) {
- SvOK_off(sv);
+ sv_setsv(dstr,sstr);
+ SvSETMAGIC(dstr);
+}
+
+void
+Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
+{
+ register char *dptr;
+ assert(len >= 0); /* STRLEN is probably unsigned, so this may
+ elicit a warning, but it won't hurt. */
+ SV_CHECK_THINKFIRST(sv);
+ if (!ptr) {
+ (void)SvOK_off(sv);
return;
}
- if (!SvUPGRADE(sv, SVt_PV))
- return;
+ (void)SvUPGRADE(sv, SVt_PV);
+
SvGROW(sv, len + 1);
- if (ptr)
- Move(ptr,SvPVX(sv),len,char);
+ dptr = SvPVX(sv);
+ Move(ptr,dptr,len,char);
+ dptr[len] = '\0';
SvCUR_set(sv, len);
- *SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
void
-sv_setpv(sv,ptr)
-register SV *sv;
-register char *ptr;
+Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
+{
+ sv_setpvn(sv,ptr,len);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr)
{
register STRLEN len;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
+ SV_CHECK_THINKFIRST(sv);
if (!ptr) {
- SvOK_off(sv);
+ (void)SvOK_off(sv);
return;
}
len = strlen(ptr);
- if (!SvUPGRADE(sv, SVt_PV))
- return;
+ (void)SvUPGRADE(sv, SVt_PV);
+
SvGROW(sv, len + 1);
Move(ptr,SvPVX(sv),len+1,char);
SvCUR_set(sv, len);
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
void
-sv_usepvn(sv,ptr,len)
-register SV *sv;
-register char *ptr;
-register STRLEN len;
+Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr)
{
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- if (!SvUPGRADE(sv, SVt_PV))
- return;
+ sv_setpv(sv,ptr);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len)
+{
+ SV_CHECK_THINKFIRST(sv);
+ (void)SvUPGRADE(sv, SVt_PV);
if (!ptr) {
- SvOK_off(sv);
+ (void)SvOK_off(sv);
return;
}
- if (SvPVX(sv))
+ (void)SvOOK_off(sv);
+ if (SvPVX(sv) && SvLEN(sv))
Safefree(SvPVX(sv));
Renew(ptr, len+1, char);
SvPVX(sv) = ptr;
SvCUR_set(sv, len);
SvLEN_set(sv, len+1);
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
void
-sv_chop(sv,ptr) /* like set but assuming ptr is in sv */
-register SV *sv;
-register char *ptr;
+Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len)
+{
+ sv_usepvn(sv,ptr,len);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_force_normal(pTHX_ register SV *sv)
+{
+ if (SvREADONLY(sv)) {
+ dTHR;
+ if (PL_curcop != &PL_compiling)
+ Perl_croak(aTHX_ PL_no_modify);
+ }
+ if (SvROK(sv))
+ sv_unref(sv);
+ else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV)
+ sv_unglob(sv);
+}
+
+void
+Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */
+
+
{
register STRLEN delta;
- if (!ptr || !SvPOK(sv))
+ if (!ptr || !SvPOKp(sv))
return;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
+ SV_CHECK_THINKFIRST(sv);
if (SvTYPE(sv) < SVt_PVIV)
sv_upgrade(sv,SVt_PVIV);
if (!SvOOK(sv)) {
+ if (!SvLEN(sv)) { /* make copy of shared string */
+ char *pvx = SvPVX(sv);
+ STRLEN len = SvCUR(sv);
+ SvGROW(sv, len + 1);
+ Move(pvx,SvPVX(sv),len,char);
+ *SvEND(sv) = '\0';
+ }
SvIVX(sv) = 0;
SvFLAGS(sv) |= SVf_OOK;
}
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK);
+ SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV);
delta = ptr - SvPVX(sv);
SvLEN(sv) -= delta;
SvCUR(sv) -= delta;
}
void
-sv_catpvn(sv,ptr,len)
-register SV *sv;
-register char *ptr;
-register STRLEN len;
+Perl_sv_catpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
{
STRLEN tlen;
- char *s;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- s = SvPV(sv, tlen);
+ char *junk;
+
+ junk = SvPV_force(sv, tlen);
SvGROW(sv, tlen + len + 1);
+ if (ptr == junk)
+ ptr = SvPVX(sv);
Move(ptr,SvPVX(sv)+tlen,len,char);
SvCUR(sv) += len;
*SvEND(sv) = '\0';
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
void
-sv_catsv(dstr,sstr)
-SV *dstr;
-register SV *sstr;
+Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len)
+{
+ sv_catpvn(sv,ptr,len);
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr)
{
char *s;
STRLEN len;
}
void
-sv_catpv(sv,ptr)
-register SV *sv;
-register char *ptr;
+Perl_sv_catsv_mg(pTHX_ SV *dstr, register SV *sstr)
+{
+ sv_catsv(dstr,sstr);
+ SvSETMAGIC(dstr);
+}
+
+void
+Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr)
{
register STRLEN len;
STRLEN tlen;
- char *s;
+ char *junk;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
if (!ptr)
return;
- s = SvPV(sv, tlen);
+ junk = SvPV_force(sv, tlen);
len = strlen(ptr);
SvGROW(sv, tlen + len + 1);
+ if (ptr == junk)
+ ptr = SvPVX(sv);
Move(ptr,SvPVX(sv)+tlen,len+1,char);
SvCUR(sv) += len;
- SvPOK_only(sv); /* validate pointer */
+ (void)SvPOK_only(sv); /* validate pointer */
SvTAINT(sv);
}
+void
+Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr)
+{
+ sv_catpv(sv,ptr);
+ SvSETMAGIC(sv);
+}
+
SV *
-#ifdef LEAKTEST
-newSV(x,len)
-I32 x;
-#else
-newSV(len)
-#endif
-STRLEN len;
+Perl_newSV(pTHX_ STRLEN len)
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
if (len) {
sv_upgrade(sv, SVt_PV);
SvGROW(sv, len + 1);
return sv;
}
+/* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */
+
void
-sv_magic(sv, obj, how, name, namlen)
-register SV *sv;
-SV *obj;
-char how;
-char *name;
-I32 namlen;
+Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen)
{
MAGIC* mg;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
+ if (SvREADONLY(sv)) {
+ dTHR;
+ if (PL_curcop != &PL_compiling && !strchr("gBf", how))
+ Perl_croak(aTHX_ PL_no_modify);
}
- if (SvMAGICAL(sv)) {
- if (SvMAGIC(sv) && mg_find(sv, how))
+ if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) {
+ if (SvMAGIC(sv) && (mg = mg_find(sv, how))) {
+ if (how == 't')
+ mg->mg_len |= 1;
return;
+ }
}
else {
- if (!SvUPGRADE(sv, SVt_PVMG))
- return;
- SvMAGICAL_on(sv);
- SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK);
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
+ (void)SvUPGRADE(sv, SVt_PVMG);
}
Newz(702,mg, 1, MAGIC);
mg->mg_moremagic = SvMAGIC(sv);
SvMAGIC(sv) = mg;
- mg->mg_obj = sv_ref(obj);
+ if (!obj || obj == sv || how == '#' || how == 'r')
+ mg->mg_obj = obj;
+ else {
+ dTHR;
+ mg->mg_obj = SvREFCNT_inc(obj);
+ mg->mg_flags |= MGf_REFCOUNTED;
+ }
mg->mg_type = how;
mg->mg_len = namlen;
- if (name && namlen >= 0)
- mg->mg_ptr = nsavestr(name, namlen);
+ if (name)
+ if (namlen >= 0)
+ mg->mg_ptr = savepvn(name, namlen);
+ else if (namlen == HEf_SVKEY)
+ mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name);
+
switch (how) {
case 0:
- mg->mg_virtual = &vtbl_sv;
+ mg->mg_virtual = &PL_vtbl_sv;
break;
+ case 'A':
+ mg->mg_virtual = &PL_vtbl_amagic;
+ break;
+ case 'a':
+ mg->mg_virtual = &PL_vtbl_amagicelem;
+ break;
+ case 'c':
+ mg->mg_virtual = 0;
+ break;
case 'B':
- mg->mg_virtual = &vtbl_bm;
+ mg->mg_virtual = &PL_vtbl_bm;
+ break;
+ case 'D':
+ mg->mg_virtual = &PL_vtbl_regdata;
+ break;
+ case 'd':
+ mg->mg_virtual = &PL_vtbl_regdatum;
break;
case 'E':
- mg->mg_virtual = &vtbl_env;
+ mg->mg_virtual = &PL_vtbl_env;
+ break;
+ case 'f':
+ mg->mg_virtual = &PL_vtbl_fm;
break;
case 'e':
- mg->mg_virtual = &vtbl_envelem;
+ mg->mg_virtual = &PL_vtbl_envelem;
break;
case 'g':
- mg->mg_virtual = &vtbl_mglob;
+ mg->mg_virtual = &PL_vtbl_mglob;
break;
case 'I':
- mg->mg_virtual = &vtbl_isa;
+ mg->mg_virtual = &PL_vtbl_isa;
break;
case 'i':
- mg->mg_virtual = &vtbl_isaelem;
+ mg->mg_virtual = &PL_vtbl_isaelem;
+ break;
+ case 'k':
+ mg->mg_virtual = &PL_vtbl_nkeys;
break;
case 'L':
+ SvRMAGICAL_on(sv);
mg->mg_virtual = 0;
break;
case 'l':
- mg->mg_virtual = &vtbl_dbline;
+ mg->mg_virtual = &PL_vtbl_dbline;
break;
+#ifdef USE_THREADS
+ case 'm':
+ mg->mg_virtual = &PL_vtbl_mutex;
+ break;
+#endif /* USE_THREADS */
+#ifdef USE_LOCALE_COLLATE
+ case 'o':
+ mg->mg_virtual = &PL_vtbl_collxfrm;
+ break;
+#endif /* USE_LOCALE_COLLATE */
case 'P':
- mg->mg_virtual = &vtbl_pack;
+ mg->mg_virtual = &PL_vtbl_pack;
break;
case 'p':
- mg->mg_virtual = &vtbl_packelem;
+ case 'q':
+ mg->mg_virtual = &PL_vtbl_packelem;
+ break;
+ case 'r':
+ mg->mg_virtual = &PL_vtbl_regexp;
break;
case 'S':
- mg->mg_virtual = &vtbl_sig;
+ mg->mg_virtual = &PL_vtbl_sig;
break;
case 's':
- mg->mg_virtual = &vtbl_sigelem;
+ mg->mg_virtual = &PL_vtbl_sigelem;
break;
case 't':
- mg->mg_virtual = &vtbl_taint;
+ mg->mg_virtual = &PL_vtbl_taint;
+ mg->mg_len = 1;
break;
case 'U':
- mg->mg_virtual = &vtbl_uvar;
+ mg->mg_virtual = &PL_vtbl_uvar;
break;
case 'v':
- mg->mg_virtual = &vtbl_vec;
+ mg->mg_virtual = &PL_vtbl_vec;
break;
case 'x':
- mg->mg_virtual = &vtbl_substr;
+ mg->mg_virtual = &PL_vtbl_substr;
+ break;
+ case 'y':
+ mg->mg_virtual = &PL_vtbl_defelem;
break;
case '*':
- mg->mg_virtual = &vtbl_glob;
+ mg->mg_virtual = &PL_vtbl_glob;
break;
case '#':
- mg->mg_virtual = &vtbl_arylen;
+ mg->mg_virtual = &PL_vtbl_arylen;
+ break;
+ case '.':
+ mg->mg_virtual = &PL_vtbl_pos;
+ break;
+ case '<':
+ mg->mg_virtual = &PL_vtbl_backref;
+ break;
+ case '~': /* Reserved for use by extensions not perl internals. */
+ /* Useful for attaching extension internal data to perl vars. */
+ /* Note that multiple extensions may clash if magical scalars */
+ /* etc holding private data from one are passed to another. */
+ SvRMAGICAL_on(sv);
break;
default:
- croak("Don't know how to handle magic of type '%c'", how);
+ Perl_croak(aTHX_ "Don't know how to handle magic of type '%c'", how);
}
+ mg_magical(sv);
+ if (SvGMAGICAL(sv))
+ SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
}
int
-sv_unmagic(sv, type)
-SV* sv;
-char type;
+Perl_sv_unmagic(pTHX_ SV *sv, int type)
{
MAGIC* mg;
MAGIC** mgp;
- if (!SvMAGICAL(sv))
+ if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv))
return 0;
mgp = &SvMAGIC(sv);
for (mg = *mgp; mg; mg = *mgp) {
if (mg->mg_type == type) {
MGVTBL* vtbl = mg->mg_virtual;
*mgp = mg->mg_moremagic;
- if (vtbl && vtbl->svt_free)
- (*vtbl->svt_free)(sv, mg);
+ if (vtbl && (vtbl->svt_free != NULL))
+ CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg);
if (mg->mg_ptr && mg->mg_type != 'g')
- Safefree(mg->mg_ptr);
- sv_free(mg->mg_obj);
+ if (mg->mg_len >= 0)
+ Safefree(mg->mg_ptr);
+ else if (mg->mg_len == HEf_SVKEY)
+ SvREFCNT_dec((SV*)mg->mg_ptr);
+ if (mg->mg_flags & MGf_REFCOUNTED)
+ SvREFCNT_dec(mg->mg_obj);
Safefree(mg);
}
else
}
if (!SvMAGIC(sv)) {
SvMAGICAL_off(sv);
- SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
- SvFLAGS(sv) |= SvPRIVATE(sv) & (SVf_IOK|SVf_NOK|SVf_POK);
- SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
+ SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
}
return 0;
}
+SV *
+Perl_sv_rvweaken(pTHX_ SV *sv)
+{
+ SV *tsv;
+ if (!SvOK(sv)) /* let undefs pass */
+ return sv;
+ if (!SvROK(sv))
+ Perl_croak(aTHX_ "Can't weaken a nonreference");
+ else if (SvWEAKREF(sv)) {
+ dTHR;
+ if (ckWARN(WARN_MISC))
+ Perl_warner(aTHX_ WARN_MISC, "Reference is already weak");
+ return sv;
+ }
+ tsv = SvRV(sv);
+ sv_add_backref(tsv, sv);
+ SvWEAKREF_on(sv);
+ SvREFCNT_dec(tsv);
+ return sv;
+}
+
+STATIC void
+S_sv_add_backref(pTHX_ SV *tsv, SV *sv)
+{
+ AV *av;
+ MAGIC *mg;
+ if (SvMAGICAL(tsv) && (mg = mg_find(tsv, '<')))
+ av = (AV*)mg->mg_obj;
+ else {
+ av = newAV();
+ sv_magic(tsv, (SV*)av, '<', NULL, 0);
+ SvREFCNT_dec(av); /* for sv_magic */
+ }
+ av_push(av,sv);
+}
+
+STATIC void
+S_sv_del_backref(pTHX_ SV *sv)
+{
+ AV *av;
+ SV **svp;
+ I32 i;
+ SV *tsv = SvRV(sv);
+ MAGIC *mg;
+ if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, '<')))
+ Perl_croak(aTHX_ "panic: del_backref");
+ av = (AV *)mg->mg_obj;
+ svp = AvARRAY(av);
+ i = AvFILLp(av);
+ while (i >= 0) {
+ if (svp[i] == sv) {
+ svp[i] = &PL_sv_undef; /* XXX */
+ }
+ i--;
+ }
+}
+
void
-sv_insert(bigstr,offset,len,little,littlelen)
-SV *bigstr;
-STRLEN offset;
-STRLEN len;
-char *little;
-STRLEN littlelen;
+Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen)
{
register char *big;
register char *mid;
register char *midend;
register char *bigend;
register I32 i;
+ STRLEN curlen;
+
- if (SvTHINKFIRST(bigstr)) {
- if (SvREADONLY(bigstr))
- croak(no_modify);
- if (SvROK(bigstr))
- sv_unref(bigstr);
+ if (!bigstr)
+ Perl_croak(aTHX_ "Can't modify non-existent substring");
+ SvPV_force(bigstr, curlen);
+ if (offset + len > curlen) {
+ SvGROW(bigstr, offset+len+1);
+ Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char);
+ SvCUR_set(bigstr, offset+len);
}
- SvPOK_only(bigstr);
i = littlelen - len;
if (i > 0) { /* string might grow */
- if (!SvUPGRADE(bigstr, SVt_PV))
- return;
- SvGROW(bigstr, SvCUR(bigstr) + i + 1);
- big = SvPVX(bigstr);
+ big = SvGROW(bigstr, SvCUR(bigstr) + i + 1);
mid = big + offset + len;
midend = bigend = big + SvCUR(bigstr);
bigend += i;
bigend = big + SvCUR(bigstr);
if (midend > bigend)
- croak("panic: sv_insert");
+ Perl_croak(aTHX_ "panic: sv_insert");
if (mid - big > bigend - midend) { /* faster to shorten from end */
if (littlelen) {
/* make sv point to what nstr did */
void
-sv_replace(sv,nsv)
-register SV *sv;
-register SV *nsv;
+Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv)
{
+ dTHR;
U32 refcnt = SvREFCNT(sv);
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- if (SvREFCNT(nsv) != 1)
- warn("Reference miscount in sv_replace()");
+ SV_CHECK_THINKFIRST(sv);
+ if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()");
if (SvMAGICAL(sv)) {
- SvUPGRADE(nsv, SVt_PVMG);
+ if (SvMAGICAL(nsv))
+ mg_free(nsv);
+ else
+ sv_upgrade(nsv, SVt_PVMG);
SvMAGIC(nsv) = SvMAGIC(sv);
- SvMAGICAL_on(nsv);
+ SvFLAGS(nsv) |= SvMAGICAL(sv);
SvMAGICAL_off(sv);
SvMAGIC(sv) = 0;
}
SvREFCNT(sv) = 0;
sv_clear(sv);
+ assert(!SvREFCNT(sv));
StructCopy(nsv,sv,SV);
SvREFCNT(sv) = refcnt;
+ SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */
del_SV(nsv);
}
void
-sv_clear(sv)
-register SV *sv;
+Perl_sv_clear(pTHX_ register SV *sv)
{
+ HV* stash;
assert(sv);
assert(SvREFCNT(sv) == 0);
if (SvOBJECT(sv)) {
- dSP;
- BINOP myop; /* fake syntax tree node */
- GV* destructor;
-
- SvOBJECT_off(sv); /* Curse the object. */
-
- ENTER;
- SAVETMPS;
- SAVESPTR(curcop);
- SAVESPTR(op);
- curcop = &compiling;
- curstash = SvSTASH(sv);
- destructor = gv_fetchpv("DESTROY", FALSE);
-
- if (destructor && GvCV(destructor)) {
- SV* ref = sv_mortalcopy(&sv_undef);
- sv_upgrade(ref, SVt_RV);
- SvRV(ref) = sv_ref(sv);
- SvROK_on(ref);
-
- op = (OP*)&myop;
- Zero(op, 1, OP);
- myop.op_last = (OP*)&myop;
- myop.op_flags = OPf_STACKED;
- myop.op_next = Nullop;
-
- EXTEND(SP, 2);
- PUSHs((SV*)destructor);
- pp_pushmark();
- PUSHs(ref);
- PUTBACK;
- op = pp_entersubr();
- if (op)
- run();
- stack_sp--;
- SvREFCNT(sv) = 0;
- SvTYPE(ref) = SVt_NULL;
- free_tmps();
- }
- LEAVE;
+ dTHR;
+ if (PL_defstash) { /* Still have a symbol table? */
+ djSP;
+ GV* destructor;
+ SV tmpref;
+
+ Zero(&tmpref, 1, SV);
+ sv_upgrade(&tmpref, SVt_RV);
+ SvROK_on(&tmpref);
+ SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */
+ SvREFCNT(&tmpref) = 1;
+
+ do {
+ stash = SvSTASH(sv);
+ destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY");
+ if (destructor) {
+ ENTER;
+ PUSHSTACKi(PERLSI_DESTROY);
+ SvRV(&tmpref) = SvREFCNT_inc(sv);
+ EXTEND(SP, 2);
+ PUSHMARK(SP);
+ PUSHs(&tmpref);
+ PUTBACK;
+ call_sv((SV*)GvCV(destructor),
+ G_DISCARD|G_EVAL|G_KEEPERR);
+ SvREFCNT(sv)--;
+ POPSTACK;
+ SPAGAIN;
+ LEAVE;
+ }
+ } while (SvOBJECT(sv) && SvSTASH(sv) != stash);
+
+ del_XRV(SvANY(&tmpref));
+
+ if (SvREFCNT(sv)) {
+ if (PL_in_clean_objs)
+ Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'",
+ HvNAME(stash));
+ /* DESTROY gave object new lease on life */
+ return;
+ }
+ }
+
+ if (SvOBJECT(sv)) {
+ SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */
+ SvOBJECT_off(sv); /* Curse the object. */
+ if (SvTYPE(sv) != SVt_PVIO)
+ --PL_sv_objcount; /* XXX Might want something more general */
+ }
}
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
+ mg_free(sv);
+ stash = NULL;
switch (SvTYPE(sv)) {
- case SVt_PVFM:
- goto freemagic;
+ case SVt_PVIO:
+ if (IoIFP(sv) &&
+ IoIFP(sv) != PerlIO_stdin() &&
+ IoIFP(sv) != PerlIO_stdout() &&
+ IoIFP(sv) != PerlIO_stderr())
+ {
+ io_close((IO*)sv, FALSE);
+ }
+ if (IoDIRP(sv)) {
+ PerlDir_close(IoDIRP(sv));
+ IoDIRP(sv) = 0;
+ }
+ Safefree(IoTOP_NAME(sv));
+ Safefree(IoFMT_NAME(sv));
+ Safefree(IoBOTTOM_NAME(sv));
+ /* FALL THROUGH */
case SVt_PVBM:
- goto freemagic;
- case SVt_PVGV:
- gp_free(sv);
- goto freemagic;
+ goto freescalar;
case SVt_PVCV:
- cv_clear((CV*)sv);
- goto freemagic;
+ case SVt_PVFM:
+ cv_undef((CV*)sv);
+ goto freescalar;
case SVt_PVHV:
- hv_clear((HV*)sv);
- goto freemagic;
+ hv_undef((HV*)sv);
+ break;
case SVt_PVAV:
- av_clear((AV*)sv);
- goto freemagic;
+ av_undef((AV*)sv);
+ break;
case SVt_PVLV:
- goto freemagic;
+ SvREFCNT_dec(LvTARG(sv));
+ goto freescalar;
+ case SVt_PVGV:
+ gp_free((GV*)sv);
+ Safefree(GvNAME(sv));
+ /* cannot decrease stash refcount yet, as we might recursively delete
+ ourselves when the refcnt drops to zero. Delay SvREFCNT_dec
+ of stash until current sv is completely gone.
+ -- JohnPC, 27 Mar 1998 */
+ stash = GvSTASH(sv);
+ /* FALL THROUGH */
case SVt_PVMG:
- freemagic:
- if (SvMAGICAL(sv))
- mg_free(sv);
case SVt_PVNV:
case SVt_PVIV:
- SvOOK_off(sv);
+ freescalar:
+ (void)SvOOK_off(sv);
/* FALL THROUGH */
case SVt_PV:
- if (SvPVX(sv))
+ case SVt_RV:
+ if (SvROK(sv)) {
+ if (SvWEAKREF(sv))
+ sv_del_backref(sv);
+ else
+ SvREFCNT_dec(SvRV(sv));
+ }
+ else if (SvPVX(sv) && SvLEN(sv))
Safefree(SvPVX(sv));
break;
+/*
case SVt_NV:
- break;
case SVt_IV:
- break;
- case SVt_RV:
- sv_free(SvRV(sv));
- break;
case SVt_NULL:
break;
+*/
}
switch (SvTYPE(sv)) {
break;
case SVt_PVGV:
del_XPVGV(SvANY(sv));
- break;
+ /* code duplication for increased performance. */
+ SvFLAGS(sv) &= SVf_BREAK;
+ SvFLAGS(sv) |= SVTYPEMASK;
+ /* decrease refcount of the stash that owns this GV, if any */
+ if (stash)
+ SvREFCNT_dec(stash);
+ return; /* not break, SvFLAGS reset already happened */
case SVt_PVBM:
del_XPVBM(SvANY(sv));
break;
case SVt_PVFM:
del_XPVFM(SvANY(sv));
break;
+ case SVt_PVIO:
+ del_XPVIO(SvANY(sv));
+ break;
}
- DEB(SvTYPE(sv) = 0xff;)
+ SvFLAGS(sv) &= SVf_BREAK;
+ SvFLAGS(sv) |= SVTYPEMASK;
}
SV *
-sv_ref(sv)
-SV* sv;
+Perl_sv_newref(pTHX_ SV *sv)
{
if (sv)
- SvREFCNT(sv)++;
+ ATOMIC_INC(SvREFCNT(sv));
return sv;
}
void
-sv_free(sv)
-SV *sv;
+Perl_sv_free(pTHX_ SV *sv)
{
+ dTHR;
+ int refcount_is_zero;
+
if (!sv)
return;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv)) {
- if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no)
- return;
- }
- }
if (SvREFCNT(sv) == 0) {
- warn("Attempt to free unreferenced scalar");
+ if (SvFLAGS(sv) & SVf_BREAK)
+ return;
+ if (PL_in_clean_all) /* All is fair */
+ return;
+ if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
+ /* make sure SvREFCNT(sv)==0 happens very seldom */
+ SvREFCNT(sv) = (~(U32)0)/2;
+ return;
+ }
+ if (ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar");
return;
}
+ ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv));
+ if (!refcount_is_zero)
+ return;
#ifdef DEBUGGING
if (SvTEMP(sv)) {
- warn("Attempt to free temp prematurely");
+ if (ckWARN_d(WARN_DEBUGGING))
+ Perl_warner(aTHX_ WARN_DEBUGGING,
+ "Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv);
return;
}
#endif
- if (--SvREFCNT(sv) > 0)
+ if (SvREADONLY(sv) && SvIMMORTAL(sv)) {
+ /* make sure SvREFCNT(sv)==0 happens very seldom */
+ SvREFCNT(sv) = (~(U32)0)/2;
return;
+ }
sv_clear(sv);
- DEB(SvTYPE(sv) = 0xff;)
- del_SV(sv);
+ if (! SvREFCNT(sv))
+ del_SV(sv);
}
STRLEN
-sv_len(sv)
-register SV *sv;
+Perl_sv_len(pTHX_ register SV *sv)
{
- char *s;
+ char *junk;
+ STRLEN len;
+
+ if (!sv)
+ return 0;
+
+ if (SvGMAGICAL(sv))
+ len = mg_length(sv);
+ else
+ junk = SvPV(sv, len);
+ return len;
+}
+
+STRLEN
+Perl_sv_len_utf8(pTHX_ register SV *sv)
+{
+ U8 *s;
+ U8 *send;
STRLEN len;
if (!sv)
return 0;
- s = SvPV(sv, len);
+#ifdef NOTYET
+ if (SvGMAGICAL(sv))
+ len = mg_length(sv);
+ else
+#endif
+ s = (U8*)SvPV(sv, len);
+ send = s + len;
+ len = 0;
+ while (s < send) {
+ s += UTF8SKIP(s);
+ len++;
+ }
return len;
}
+void
+Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp)
+{
+ U8 *start;
+ U8 *s;
+ U8 *send;
+ I32 uoffset = *offsetp;
+ STRLEN len;
+
+ if (!sv)
+ return;
+
+ start = s = (U8*)SvPV(sv, len);
+ send = s + len;
+ while (s < send && uoffset--)
+ s += UTF8SKIP(s);
+ if (s >= send)
+ s = send;
+ *offsetp = s - start;
+ if (lenp) {
+ I32 ulen = *lenp;
+ start = s;
+ while (s < send && ulen--)
+ s += UTF8SKIP(s);
+ if (s >= send)
+ s = send;
+ *lenp = s - start;
+ }
+ return;
+}
+
+void
+Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp)
+{
+ U8 *s;
+ U8 *send;
+ STRLEN len;
+
+ if (!sv)
+ return;
+
+ s = (U8*)SvPV(sv, len);
+ if (len < *offsetp)
+ Perl_croak(aTHX_ "panic: bad byte offset");
+ send = s + *offsetp;
+ len = 0;
+ while (s < send) {
+ s += UTF8SKIP(s);
+ ++len;
+ }
+ if (s != send) {
+ dTHR;
+ if (ckWARN_d(WARN_UTF8))
+ Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
+ --len;
+ }
+ *offsetp = len;
+ return;
+}
+
I32
-sv_eq(str1,str2)
-register SV *str1;
-register SV *str2;
+Perl_sv_eq(pTHX_ register SV *str1, register SV *str2)
{
char *pv1;
STRLEN cur1;
if (cur1 != cur2)
return 0;
- return !bcmp(pv1, pv2, cur1);
+ return memEQ(pv1, pv2, cur1);
}
I32
-sv_cmp(str1,str2)
-register SV *str1;
-register SV *str2;
+Perl_sv_cmp(pTHX_ register SV *str1, register SV *str2)
{
+ STRLEN cur1 = 0;
+ char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL;
+ STRLEN cur2 = 0;
+ char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL;
I32 retval;
- char *pv1;
- STRLEN cur1;
- char *pv2;
- STRLEN cur2;
-
- if (!str1) {
- pv1 = "";
- cur1 = 0;
- }
- else
- pv1 = SvPV(str1, cur1);
-
- if (!str2) {
- pv2 = "";
- cur2 = 0;
- }
- else
- pv2 = SvPV(str2, cur2);
if (!cur1)
return cur2 ? -1 : 0;
+
if (!cur2)
return 1;
- if (cur1 < cur2) {
- /*SUPPRESS 560*/
- if (retval = memcmp(pv1, pv2, cur1))
- return retval < 0 ? -1 : 1;
- else
- return -1;
- }
- /*SUPPRESS 560*/
- else if (retval = memcmp(pv1, pv2, cur2))
+ retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2);
+
+ if (retval)
return retval < 0 ? -1 : 1;
- else if (cur1 == cur2)
+
+ if (cur1 == cur2)
return 0;
else
- return 1;
+ return cur1 < cur2 ? -1 : 1;
}
-char *
-sv_gets(sv,fp,append)
-register SV *sv;
-register FILE *fp;
-I32 append;
-{
- register char *bp; /* we're going to steal some values */
- register I32 cnt; /* from the stdio struct and put EVERYTHING */
- register STDCHAR *ptr; /* in the innermost loop into registers */
- register I32 newline = rschar;/* (assuming >= 6 registers) */
- I32 i;
- STRLEN bpx;
- I32 shortbuffered;
+I32
+Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2)
+{
+#ifdef USE_LOCALE_COLLATE
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
+ char *pv1, *pv2;
+ STRLEN len1, len2;
+ I32 retval;
+
+ if (PL_collation_standard)
+ goto raw_compare;
+
+ len1 = 0;
+ pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL;
+ len2 = 0;
+ pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL;
+
+ if (!pv1 || !len1) {
+ if (pv2 && len2)
+ return -1;
+ else
+ goto raw_compare;
}
- if (!SvUPGRADE(sv, SVt_PV))
- return;
- if (rspara) { /* have to do this both before and after */
- do { /* to make sure file boundaries work right */
- i = getc(fp);
- if (i != '\n') {
- ungetc(i,fp);
- break;
+ else {
+ if (!pv2 || !len2)
+ return 1;
+ }
+
+ retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2);
+
+ if (retval)
+ return retval < 0 ? -1 : 1;
+
+ /*
+ * When the result of collation is equality, that doesn't mean
+ * that there are no differences -- some locales exclude some
+ * characters from consideration. So to avoid false equalities,
+ * we use the raw string as a tiebreaker.
+ */
+
+ raw_compare:
+ /* FALL THROUGH */
+
+#endif /* USE_LOCALE_COLLATE */
+
+ return sv_cmp(sv1, sv2);
+}
+
+#ifdef USE_LOCALE_COLLATE
+/*
+ * Any scalar variable may carry an 'o' magic that contains the
+ * scalar data of the variable transformed to such a format that
+ * a normal memory comparison can be used to compare the data
+ * according to the locale settings.
+ */
+char *
+Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp)
+{
+ MAGIC *mg;
+
+ mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL;
+ if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) {
+ char *s, *xf;
+ STRLEN len, xlen;
+
+ if (mg)
+ Safefree(mg->mg_ptr);
+ s = SvPV(sv, len);
+ if ((xf = mem_collxfrm(s, len, &xlen))) {
+ if (SvREADONLY(sv)) {
+ SAVEFREEPV(xf);
+ *nxp = xlen;
+ return xf + sizeof(PL_collation_ix);
}
- } while (i != EOF);
+ if (! mg) {
+ sv_magic(sv, 0, 'o', 0, 0);
+ mg = mg_find(sv, 'o');
+ assert(mg);
+ }
+ mg->mg_ptr = xf;
+ mg->mg_len = xlen;
+ }
+ else {
+ if (mg) {
+ mg->mg_ptr = NULL;
+ mg->mg_len = -1;
+ }
+ }
}
-#ifdef STDSTDIO /* Here is some breathtakingly efficient cheating */
- cnt = fp->_cnt; /* get count into register */
- SvPOK_only(sv); /* validate pointer */
+ if (mg && mg->mg_ptr) {
+ *nxp = mg->mg_len;
+ return mg->mg_ptr + sizeof(PL_collation_ix);
+ }
+ else {
+ *nxp = 0;
+ return NULL;
+ }
+}
+
+#endif /* USE_LOCALE_COLLATE */
+
+char *
+Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append)
+{
+ dTHR;
+ char *rsptr;
+ STRLEN rslen;
+ register STDCHAR rslast;
+ register STDCHAR *bp;
+ register I32 cnt;
+ I32 i;
+
+ SV_CHECK_THINKFIRST(sv);
+ (void)SvUPGRADE(sv, SVt_PV);
+
+ SvSCREAM_off(sv);
+
+ if (RsSNARF(PL_rs)) {
+ rsptr = NULL;
+ rslen = 0;
+ }
+ else if (RsRECORD(PL_rs)) {
+ I32 recsize, bytesread;
+ char *buffer;
+
+ /* Grab the size of the record we're getting */
+ recsize = SvIV(SvRV(PL_rs));
+ (void)SvPOK_only(sv); /* Validate pointer */
+ buffer = SvGROW(sv, recsize + 1);
+ /* Go yank in */
+#ifdef VMS
+ /* VMS wants read instead of fread, because fread doesn't respect */
+ /* RMS record boundaries. This is not necessarily a good thing to be */
+ /* doing, but we've got no other real choice */
+ bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize);
+#else
+ bytesread = PerlIO_read(fp, buffer, recsize);
+#endif
+ SvCUR_set(sv, bytesread);
+ buffer[bytesread] = '\0';
+ return(SvCUR(sv) ? SvPVX(sv) : Nullch);
+ }
+ else if (RsPARA(PL_rs)) {
+ rsptr = "\n\n";
+ rslen = 2;
+ }
+ else
+ rsptr = SvPV(PL_rs, rslen);
+ rslast = rslen ? rsptr[rslen - 1] : '\0';
+
+ if (RsPARA(PL_rs)) { /* have to do this both before and after */
+ do { /* to make sure file boundaries work right */
+ if (PerlIO_eof(fp))
+ return 0;
+ i = PerlIO_getc(fp);
+ if (i != '\n') {
+ if (i == -1)
+ return 0;
+ PerlIO_ungetc(fp,i);
+ break;
+ }
+ } while (i != EOF);
+ }
+
+ /* See if we know enough about I/O mechanism to cheat it ! */
+
+ /* This used to be #ifdef test - it is made run-time test for ease
+ of abstracting out stdio interface. One call should be cheap
+ enough here - and may even be a macro allowing compile
+ time optimization.
+ */
+
+ if (PerlIO_fast_gets(fp)) {
+
+ /*
+ * We're going to steal some values from the stdio struct
+ * and put EVERYTHING in the innermost loop into registers.
+ */
+ register STDCHAR *ptr;
+ STRLEN bpx;
+ I32 shortbuffered;
+
+#if defined(VMS) && defined(PERLIO_IS_STDIO)
+ /* An ungetc()d char is handled separately from the regular
+ * buffer, so we getc() it back out and stuff it in the buffer.
+ */
+ i = PerlIO_getc(fp);
+ if (i == EOF) return 0;
+ *(--((*fp)->_ptr)) = (unsigned char) i;
+ (*fp)->_cnt++;
+#endif
+
+ /* Here is some breathtakingly efficient cheating */
+
+ cnt = PerlIO_get_cnt(fp); /* get count into register */
+ (void)SvPOK_only(sv); /* validate pointer */
if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */
if (cnt > 80 && SvLEN(sv) > append) {
shortbuffered = cnt - SvLEN(sv) + append + 1;
}
else {
shortbuffered = 0;
- SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */
+ /* remember that cnt can be negative */
+ SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1)));
}
}
else
shortbuffered = 0;
- bp = SvPVX(sv) + append; /* move these two too to registers */
- ptr = fp->_ptr;
+ bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */
+ ptr = (STDCHAR*)PerlIO_get_ptr(fp);
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0)));
for (;;) {
screamer:
if (cnt > 0) {
- while (--cnt >= 0) { /* this */ /* eat */
- if ((*bp++ = *ptr++) == newline) /* really */ /* dust */
- goto thats_all_folks; /* screams */ /* sed :-) */
+ if (rslen) {
+ while (cnt > 0) { /* this | eat */
+ cnt--;
+ if ((*bp++ = *ptr++) == rslast) /* really | dust */
+ goto thats_all_folks; /* screams | sed :-) */
+ }
+ }
+ else {
+ Copy(ptr, bp, cnt, char); /* this | eat */
+ bp += cnt; /* screams | dust */
+ ptr += cnt; /* louder | sed :-) */
+ cnt = 0;
}
}
- if (shortbuffered) { /* oh well, must extend */
+ if (shortbuffered) { /* oh well, must extend */
cnt = shortbuffered;
shortbuffered = 0;
- bpx = bp - SvPVX(sv); /* prepare for possible relocation */
+ bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
SvCUR_set(sv, bpx);
SvGROW(sv, SvLEN(sv) + append + cnt + 2);
- bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
continue;
}
- fp->_cnt = cnt; /* deregisterize cnt and ptr */
- fp->_ptr = ptr;
- i = _filbuf(fp); /* get more characters */
- cnt = fp->_cnt;
- ptr = fp->_ptr; /* reregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
+ /* This used to call 'filbuf' in stdio form, but as that behaves like
+ getc when cnt <= 0 we use PerlIO_getc here to avoid introducing
+ another abstraction. */
+ i = PerlIO_getc(fp); /* get more characters */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
+ cnt = PerlIO_get_cnt(fp);
+ ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+
+ if (i == EOF) /* all done for ever? */
+ goto thats_really_all_folks;
- bpx = bp - SvPVX(sv); /* prepare for possible relocation */
+ bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */
SvCUR_set(sv, bpx);
SvGROW(sv, bpx + cnt + 2);
- bp = SvPVX(sv) + bpx; /* reconstitute our pointer */
+ bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */
+
+ *bp++ = i; /* store character from PerlIO_getc */
- if (i == newline) { /* all done for now? */
- *bp++ = i;
+ if (rslen && (STDCHAR)i == rslast) /* all done for now? */
goto thats_all_folks;
- }
- else if (i == EOF) /* all done for ever? */
- goto thats_really_all_folks;
- *bp++ = i; /* now go back to screaming loop */
}
thats_all_folks:
- if (rslen > 1 && (bp - SvPVX(sv) < rslen || bcmp(bp - rslen, rs, rslen)))
- goto screamer; /* go back to the fray */
+ if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) ||
+ memNE((char*)bp - rslen, rsptr, rslen))
+ goto screamer; /* go back to the fray */
thats_really_all_folks:
if (shortbuffered)
cnt += shortbuffered;
- fp->_cnt = cnt; /* put these back or we're in trouble */
- fp->_ptr = ptr;
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt));
+ PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n",
+ (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp),
+ (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0)));
*bp = '\0';
- SvCUR_set(sv, bp - SvPVX(sv)); /* set length */
-
-#else /* !STDSTDIO */ /* The big, slow, and stupid way */
-
+ SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */
+ DEBUG_P(PerlIO_printf(Perl_debug_log,
+ "Screamer: done, len=%ld, string=|%.*s|\n",
+ (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv)));
+ }
+ else
{
- char buf[8192];
- register char * bpe = buf + sizeof(buf) - 3;
+#ifndef EPOC
+ /*The big, slow, and stupid way */
+ STDCHAR buf[8192];
+#else
+ /* Need to work around EPOC SDK features */
+ /* On WINS: MS VC5 generates calls to _chkstk, */
+ /* if a `large' stack frame is allocated */
+ /* gcc on MARM does not generate calls like these */
+ STDCHAR buf[1024];
+#endif
-screamer:
- bp = buf;
- while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ;
+screamer2:
+ if (rslen) {
+ register STDCHAR *bpe = buf + sizeof(buf);
+ bp = buf;
+ while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe)
+ ; /* keep reading */
+ cnt = bp - buf;
+ }
+ else {
+ cnt = PerlIO_read(fp,(char*)buf, sizeof(buf));
+ /* Accomodate broken VAXC compiler, which applies U8 cast to
+ * both args of ?: operator, causing EOF to change into 255
+ */
+ if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; }
+ }
if (append)
- sv_catpvn(sv, buf, bp - buf);
+ sv_catpvn(sv, (char *) buf, cnt);
else
- sv_setpvn(sv, buf, bp - buf);
- if (i != EOF /* joy */
- &&
- (i != newline
- ||
- (rslen > 1
- &&
- (SvCUR(sv) < rslen
- ||
- bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rs, rslen)
- )
- )
- )
- )
+ sv_setpvn(sv, (char *) buf, cnt);
+
+ if (i != EOF && /* joy */
+ (!rslen ||
+ SvCUR(sv) < rslen ||
+ memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen)))
{
append = -1;
- goto screamer;
+ /*
+ * If we're reading from a TTY and we get a short read,
+ * indicating that the user hit his EOF character, we need
+ * to notice it now, because if we try to read from the TTY
+ * again, the EOF condition will disappear.
+ *
+ * The comparison of cnt to sizeof(buf) is an optimization
+ * that prevents unnecessary calls to feof().
+ *
+ * - jik 9/25/96
+ */
+ if (!(cnt < sizeof(buf) && PerlIO_eof(fp)))
+ goto screamer2;
}
}
-#endif /* STDSTDIO */
-
- if (rspara) {
- while (i != EOF) {
- i = getc(fp);
+ if (RsPARA(PL_rs)) { /* have to do this both before and after */
+ while (i != EOF) { /* to make sure file boundaries work right */
+ i = PerlIO_getc(fp);
if (i != '\n') {
- ungetc(i,fp);
+ PerlIO_ungetc(fp,i);
break;
}
}
}
- return SvCUR(sv) - append ? SvPVX(sv) : Nullch;
+
+#ifdef WIN32
+ win32_strip_return(sv);
+#endif
+
+ return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch;
}
+
void
-sv_inc(sv)
-register SV *sv;
+Perl_sv_inc(pTHX_ register SV *sv)
{
register char *d;
int flags;
if (!sv)
return;
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
+ if (SvREADONLY(sv)) {
+ dTHR;
+ if (PL_curcop != &PL_compiling)
+ Perl_croak(aTHX_ PL_no_modify);
+ }
+ if (SvROK(sv)) {
+ IV i;
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,inc))
+ return;
+ i = (IV)PTR_CAST SvRV(sv);
sv_unref(sv);
+ sv_setiv(sv, i);
+ }
}
- if (SvMAGICAL(sv)) {
- mg_get(sv);
- flags = SvPRIVATE(sv);
- }
- else
- flags = SvFLAGS(sv);
- if (flags & SVf_IOK) {
- ++SvIVX(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_NOK) {
+ (void)SvNOK_only(sv);
+ SvNVX(sv) += 1.0;
return;
}
- if (flags & SVf_NOK) {
- SvNVX(sv) += 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_IOK) {
+ if (SvIsUV(sv)) {
+ if (SvUVX(sv) == UV_MAX)
+ sv_setnv(sv, (NV)UV_MAX + 1.0);
+ else
+ (void)SvIOK_only_UV(sv);
+ ++SvUVX(sv);
+ } else {
+ if (SvIVX(sv) == IV_MAX)
+ sv_setnv(sv, (NV)IV_MAX + 1.0);
+ else {
+ (void)SvIOK_only(sv);
+ ++SvIVX(sv);
+ }
+ }
return;
}
- if (!(flags & SVf_POK) || !*SvPVX(sv)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
+ if (!(flags & SVp_POK) || !*SvPVX(sv)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
SvNVX(sv) = 1.0;
- SvNOK_only(sv);
+ (void)SvNOK_only(sv);
return;
}
d = SvPVX(sv);
while (isALPHA(*d)) d++;
while (isDIGIT(*d)) d++;
if (*d) {
- sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */
+ sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); /* punt */
return;
}
d--;
*(d--) = '0';
}
else {
+#ifdef EBCDIC
+ /* MKS: The original code here died if letters weren't consecutive.
+ * at least it didn't have to worry about non-C locales. The
+ * new code assumes that ('z'-'a')==('Z'-'A'), letters are
+ * arranged in order (although not consecutively) and that only
+ * [A-Za-z] are accepted by isALPHA in the C locale.
+ */
+ if (*d != 'z' && *d != 'Z') {
+ do { ++*d; } while (!isALPHA(*d));
+ return;
+ }
+ *(d--) -= 'z' - 'a';
+#else
++*d;
if (isALPHA(*d))
return;
*(d--) -= 'z' - 'a' + 1;
+#endif
}
}
/* oh,oh, the number grew */
}
void
-sv_dec(sv)
-register SV *sv;
+Perl_sv_dec(pTHX_ register SV *sv)
{
int flags;
if (!sv)
return;
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
+ if (SvREADONLY(sv)) {
+ dTHR;
+ if (PL_curcop != &PL_compiling)
+ Perl_croak(aTHX_ PL_no_modify);
+ }
+ if (SvROK(sv)) {
+ IV i;
+ if (SvAMAGIC(sv) && AMG_CALLun(sv,dec))
+ return;
+ i = (IV)PTR_CAST SvRV(sv);
sv_unref(sv);
+ sv_setiv(sv, i);
+ }
}
- if (SvMAGICAL(sv)) {
- mg_get(sv);
- flags = SvPRIVATE(sv);
- }
- else
- flags = SvFLAGS(sv);
- if (flags & SVf_IOK) {
- --SvIVX(sv);
- SvIOK_only(sv);
+ flags = SvFLAGS(sv);
+ if (flags & SVp_NOK) {
+ SvNVX(sv) -= 1.0;
+ (void)SvNOK_only(sv);
return;
}
- if (flags & SVf_NOK) {
- SvNVX(sv) -= 1.0;
- SvNOK_only(sv);
+ if (flags & SVp_IOK) {
+ if (SvIsUV(sv)) {
+ if (SvUVX(sv) == 0) {
+ (void)SvIOK_only(sv);
+ SvIVX(sv) = -1;
+ }
+ else {
+ (void)SvIOK_only_UV(sv);
+ --SvUVX(sv);
+ }
+ } else {
+ if (SvIVX(sv) == IV_MIN)
+ sv_setnv(sv, (NV)IV_MIN - 1.0);
+ else {
+ (void)SvIOK_only(sv);
+ --SvIVX(sv);
+ }
+ }
return;
}
- if (!(flags & SVf_POK)) {
- if (!SvUPGRADE(sv, SVt_NV))
- return;
+ if (!(flags & SVp_POK)) {
+ if ((flags & SVTYPEMASK) < SVt_PVNV)
+ sv_upgrade(sv, SVt_NV);
SvNVX(sv) = -1.0;
- SvNOK_only(sv);
+ (void)SvNOK_only(sv);
return;
}
- sv_setnv(sv,atof(SvPVX(sv)) - 1.0);
+ sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */
}
/* Make a string that will exist for the duration of the expression
* permanent location. */
SV *
-sv_mortalcopy(oldstr)
-SV *oldstr;
+Perl_sv_mortalcopy(pTHX_ SV *oldstr)
{
+ dTHR;
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
sv_setsv(sv,oldstr);
- if (++tmps_ix > tmps_max) {
- tmps_max = tmps_ix;
- if (!(tmps_max & 127)) {
- if (tmps_max)
- Renew(tmps_stack, tmps_max + 128, SV*);
- else
- New(702,tmps_stack, 128, SV*);
- }
- }
- tmps_stack[tmps_ix] = sv;
- if (SvPOK(sv))
- SvTEMP_on(sv);
+ EXTEND_MORTAL(1);
+ PL_tmps_stack[++PL_tmps_ix] = sv;
+ SvTEMP_on(sv);
+ return sv;
+}
+
+SV *
+Perl_sv_newmortal(pTHX)
+{
+ dTHR;
+ register SV *sv;
+
+ new_SV(sv);
+ SvFLAGS(sv) = SVs_TEMP;
+ EXTEND_MORTAL(1);
+ PL_tmps_stack[++PL_tmps_ix] = sv;
return sv;
}
/* same thing without the copying */
SV *
-sv_2mortal(sv)
-register SV *sv;
+Perl_sv_2mortal(pTHX_ register SV *sv)
{
+ dTHR;
if (!sv)
return sv;
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv))
- croak(no_modify);
- if (SvROK(sv))
- sv_unref(sv);
- }
- if (++tmps_ix > tmps_max) {
- tmps_max = tmps_ix;
- if (!(tmps_max & 127)) {
- if (tmps_max)
- Renew(tmps_stack, tmps_max + 128, SV*);
- else
- New(704,tmps_stack, 128, SV*);
- }
- }
- tmps_stack[tmps_ix] = sv;
- if (SvPOK(sv))
- SvTEMP_on(sv);
+ if (SvREADONLY(sv) && SvIMMORTAL(sv))
+ return sv;
+ EXTEND_MORTAL(1);
+ PL_tmps_stack[++PL_tmps_ix] = sv;
+ SvTEMP_on(sv);
return sv;
}
SV *
-newSVpv(s,len)
-char *s;
-STRLEN len;
+Perl_newSVpv(pTHX_ const char *s, STRLEN len)
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
if (!len)
len = strlen(s);
sv_setpvn(sv,s,len);
}
SV *
-newSVnv(n)
-double n;
+Perl_newSVpvn(pTHX_ const char *s, STRLEN len)
+{
+ register SV *sv;
+
+ new_SV(sv);
+ sv_setpvn(sv,s,len);
+ return sv;
+}
+
+#if defined(PERL_IMPLICIT_CONTEXT)
+SV *
+Perl_newSVpvf_nocontext(const char* pat, ...)
+{
+ dTHX;
+ register SV *sv;
+ va_list args;
+ va_start(args, pat);
+ sv = vnewSVpvf(pat, &args);
+ va_end(args);
+ return sv;
+}
+#endif
+
+SV *
+Perl_newSVpvf(pTHX_ const char* pat, ...)
+{
+ register SV *sv;
+ va_list args;
+ va_start(args, pat);
+ sv = vnewSVpvf(pat, &args);
+ va_end(args);
+ return sv;
+}
+
+SV *
+Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args)
+{
+ register SV *sv;
+ new_SV(sv);
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ return sv;
+}
+
+SV *
+Perl_newSVnv(pTHX_ NV n)
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
sv_setnv(sv,n);
return sv;
}
SV *
-newSViv(i)
-I32 i;
+Perl_newSViv(pTHX_ IV i)
{
register SV *sv;
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
sv_setiv(sv,i);
return sv;
}
+SV *
+Perl_newRV_noinc(pTHX_ SV *tmpRef)
+{
+ dTHR;
+ register SV *sv;
+
+ new_SV(sv);
+ sv_upgrade(sv, SVt_RV);
+ SvTEMP_off(tmpRef);
+ SvRV(sv) = tmpRef;
+ SvROK_on(sv);
+ return sv;
+}
+
+SV *
+Perl_newRV(pTHX_ SV *tmpRef)
+{
+ return newRV_noinc(SvREFCNT_inc(tmpRef));
+}
+
/* make an exact duplicate of old */
SV *
-newSVsv(old)
-register SV *old;
+Perl_newSVsv(pTHX_ register SV *old)
{
+ dTHR;
register SV *sv;
if (!old)
return Nullsv;
- if (SvTYPE(old) == 0xff) {
- warn("semi-panic: attempt to dup freed string");
+ if (SvTYPE(old) == SVTYPEMASK) {
+ if (ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string");
return Nullsv;
}
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
+ new_SV(sv);
if (SvTEMP(old)) {
SvTEMP_off(old);
sv_setsv(sv,old);
}
void
-sv_reset(s,stash)
-register char *s;
-HV *stash;
+Perl_sv_reset(pTHX_ register char *s, HV *stash)
{
register HE *entry;
register GV *gv;
register I32 i;
register PMOP *pm;
register I32 max;
- char todo[256];
+ char todo[PERL_UCHAR_MAX+1];
+
+ if (!stash)
+ return;
if (!*s) { /* reset ?? searches */
for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) {
- pm->op_pmflags &= ~PMf_USED;
+ pm->op_pmdynflags &= ~PMdf_USED;
}
return;
}
Zero(todo, 256, char);
while (*s) {
- i = *s;
+ i = (unsigned char)*s;
if (s[1] == '-') {
s += 2;
}
- max = *s++;
+ max = (unsigned char)*s++;
for ( ; i <= max; i++) {
todo[i] = 1;
}
- for (i = 0; i <= HvMAX(stash); i++) {
+ for (i = 0; i <= (I32) HvMAX(stash); i++) {
for (entry = HvARRAY(stash)[i];
- entry;
- entry = entry->hent_next) {
- if (!todo[(U8)*entry->hent_key])
+ entry;
+ entry = HeNEXT(entry))
+ {
+ if (!todo[(U8)*HeKEY(entry)])
continue;
- gv = (GV*)entry->hent_val;
+ gv = (GV*)HeVAL(entry);
sv = GvSV(gv);
- SvOK_off(sv);
+ if (SvTHINKFIRST(sv)) {
+ if (!SvREADONLY(sv) && SvROK(sv))
+ sv_unref(sv);
+ continue;
+ }
+ (void)SvOK_off(sv);
if (SvTYPE(sv) >= SVt_PV) {
SvCUR_set(sv, 0);
- SvTAINT(sv);
if (SvPVX(sv) != Nullch)
*SvPVX(sv) = '\0';
+ SvTAINT(sv);
}
if (GvAV(gv)) {
av_clear(GvAV(gv));
}
- if (GvHV(gv)) {
+ if (GvHV(gv) && !HvNAME(GvHV(gv))) {
hv_clear(GvHV(gv));
- if (gv == envgv)
+#ifndef VMS /* VMS has no environ array */
+ if (gv == PL_envgv)
environ[0] = Nullch;
+#endif
}
}
}
}
}
+IO*
+Perl_sv_2io(pTHX_ SV *sv)
+{
+ IO* io;
+ GV* gv;
+ STRLEN n_a;
+
+ switch (SvTYPE(sv)) {
+ case SVt_PVIO:
+ io = (IO*)sv;
+ break;
+ case SVt_PVGV:
+ gv = (GV*)sv;
+ io = GvIO(gv);
+ if (!io)
+ Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv));
+ break;
+ default:
+ if (!SvOK(sv))
+ Perl_croak(aTHX_ PL_no_usym, "filehandle");
+ if (SvROK(sv))
+ return sv_2io(SvRV(sv));
+ gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO);
+ if (gv)
+ io = GvIO(gv);
+ else
+ io = 0;
+ if (!io)
+ Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a));
+ break;
+ }
+ return io;
+}
+
CV *
-sv_2cv(sv, st, gvp, lref)
-SV *sv;
-HV **st;
-GV **gvp;
-I32 lref;
+Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref)
{
GV *gv;
CV *cv;
+ STRLEN n_a;
if (!sv)
return *gvp = Nullgv, Nullcv;
switch (SvTYPE(sv)) {
- case SVt_RV:
- is_rv:
- cv = (CV*)SvRV(sv);
- if (SvTYPE(cv) != SVt_PVCV)
- croak("Not a subroutine reference");
- *gvp = Nullgv;
- *st = CvSTASH(cv);
- return cv;
case SVt_PVCV:
*st = CvSTASH(sv);
*gvp = Nullgv;
case SVt_PVAV:
*gvp = Nullgv;
return Nullcv;
+ case SVt_PVGV:
+ gv = (GV*)sv;
+ *gvp = gv;
+ *st = GvESTASH(gv);
+ goto fix_gv;
+
default:
- if (SvROK(sv))
- goto is_rv;
- if (isGV(sv))
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (SvROK(sv)) {
+ dTHR;
+ SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */
+ tryAMAGICunDEREF(to_cv);
+
+ sv = SvRV(sv);
+ if (SvTYPE(sv) == SVt_PVCV) {
+ cv = (CV*)sv;
+ *gvp = Nullgv;
+ *st = CvSTASH(cv);
+ return cv;
+ }
+ else if(isGV(sv))
+ gv = (GV*)sv;
+ else
+ Perl_croak(aTHX_ "Not a subroutine reference");
+ }
+ else if (isGV(sv))
gv = (GV*)sv;
else
- gv = gv_fetchpv(SvPV(sv, na), lref);
+ gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV);
*gvp = gv;
if (!gv)
return Nullcv;
*st = GvESTASH(gv);
- return GvCV(gv);
+ fix_gv:
+ if (lref && !GvCVu(gv)) {
+ SV *tmpsv;
+ ENTER;
+ tmpsv = NEWSV(704,0);
+ gv_efullname3(tmpsv, gv, Nullch);
+ /* XXX this is probably not what they think they're getting.
+ * It has the same effect as "sub name;", i.e. just a forward
+ * declaration! */
+ newSUB(start_subparse(FALSE, 0),
+ newSVOP(OP_CONST, 0, tmpsv),
+ Nullop,
+ Nullop);
+ LEAVE;
+ if (!GvCVu(gv))
+ Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a));
+ }
+ return GvCVu(gv);
}
}
-#ifndef SvTRUE
I32
-SvTRUE(sv)
-register SV *sv;
+Perl_sv_true(pTHX_ register SV *sv)
{
- if (SvMAGICAL(sv))
- mg_get(sv);
+ dTHR;
+ if (!sv)
+ return 0;
if (SvPOK(sv)) {
- register XPV* Xpv;
- if ((Xpv = (XPV*)SvANY(sv)) &&
- (*Xpv->xpv_pv > '0' ||
- Xpv->xpv_cur > 1 ||
- (Xpv->xpv_cur && *Xpv->xpv_pv != '0')))
+ register XPV* tXpv;
+ if ((tXpv = (XPV*)SvANY(sv)) &&
+ (*tXpv->xpv_pv > '0' ||
+ tXpv->xpv_cur > 1 ||
+ (tXpv->xpv_cur && *tXpv->xpv_pv != '0')))
return 1;
else
return 0;
}
}
}
-#endif /* SvTRUE */
-#ifndef SvNV
-double SvNV(Sv)
-register SV *Sv;
+IV
+Perl_sv_iv(pTHX_ register SV *sv)
+{
+ if (SvIOK(sv)) {
+ if (SvIsUV(sv))
+ return (IV)SvUVX(sv);
+ return SvIVX(sv);
+ }
+ return sv_2iv(sv);
+}
+
+UV
+Perl_sv_uv(pTHX_ register SV *sv)
+{
+ if (SvIOK(sv)) {
+ if (SvIsUV(sv))
+ return SvUVX(sv);
+ return (UV)SvIVX(sv);
+ }
+ return sv_2uv(sv);
+}
+
+NV
+Perl_sv_nv(pTHX_ register SV *sv)
{
- if (SvNOK(Sv))
- return SvNVX(Sv);
- if (SvIOK(Sv))
- return (double)SvIVX(Sv);
- return sv_2nv(Sv);
+ if (SvNOK(sv))
+ return SvNVX(sv);
+ return sv_2nv(sv);
}
-#endif /* SvNV */
-#ifdef CRIPPLED_CC
char *
-sv_pvn(sv, lp)
-SV *sv;
-STRLEN *lp;
+Perl_sv_pv(pTHX_ SV *sv)
{
+ STRLEN n_a;
+
if (SvPOK(sv))
- return SvPVX(sv)
+ return SvPVX(sv);
+
+ return sv_2pv(sv, &n_a);
+}
+
+char *
+Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp)
+{
+ if (SvPOK(sv)) {
+ *lp = SvCUR(sv);
+ return SvPVX(sv);
+ }
return sv_2pv(sv, lp);
}
-#endif
+
+char *
+Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp)
+{
+ char *s;
+
+ if (SvTHINKFIRST(sv) && !SvROK(sv))
+ sv_force_normal(sv);
+
+ if (SvPOK(sv)) {
+ *lp = SvCUR(sv);
+ }
+ else {
+ if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) {
+ dTHR;
+ Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0),
+ PL_op_name[PL_op->op_type]);
+ }
+ else
+ s = sv_2pv(sv, lp);
+ if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */
+ STRLEN len = *lp;
+
+ if (SvROK(sv))
+ sv_unref(sv);
+ (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */
+ SvGROW(sv, len + 1);
+ Move(s,SvPVX(sv),len,char);
+ SvCUR_set(sv, len);
+ *SvEND(sv) = '\0';
+ }
+ if (!SvPOK(sv)) {
+ SvPOK_on(sv); /* validate pointer */
+ SvTAINT(sv);
+ DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",
+ (unsigned long)sv,SvPVX(sv)));
+ }
+ }
+ return SvPVX(sv);
+}
+
+char *
+Perl_sv_reftype(pTHX_ SV *sv, int ob)
+{
+ if (ob && SvOBJECT(sv))
+ return HvNAME(SvSTASH(sv));
+ else {
+ switch (SvTYPE(sv)) {
+ case SVt_NULL:
+ case SVt_IV:
+ case SVt_NV:
+ case SVt_RV:
+ case SVt_PV:
+ case SVt_PVIV:
+ case SVt_PVNV:
+ case SVt_PVMG:
+ case SVt_PVBM:
+ if (SvROK(sv))
+ return "REF";
+ else
+ return "SCALAR";
+ case SVt_PVLV: return "LVALUE";
+ case SVt_PVAV: return "ARRAY";
+ case SVt_PVHV: return "HASH";
+ case SVt_PVCV: return "CODE";
+ case SVt_PVGV: return "GLOB";
+ case SVt_PVFM: return "FORMAT";
+ default: return "UNKNOWN";
+ }
+ }
+}
int
-sv_isa(sv, name)
-SV *sv;
-char *name;
+Perl_sv_isobject(pTHX_ SV *sv)
{
+ if (!sv)
+ return 0;
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
if (!SvROK(sv))
return 0;
sv = (SV*)SvRV(sv);
if (!SvOBJECT(sv))
return 0;
-
- return strEQ(HvNAME(SvSTASH(sv)), name);
+ return 1;
}
-SV*
-sv_setptrobj(rv, ptr, name)
-SV *rv;
-void *ptr;
-char *name;
+int
+Perl_sv_isa(pTHX_ SV *sv, const char *name)
{
- HV *stash;
- SV *sv;
-
- if (!ptr)
- return rv;
-
- new_SV();
- Zero(sv, 1, SV);
- SvREFCNT(sv)++;
- sv_setnv(sv, (double)(unsigned long)ptr);
- sv_upgrade(rv, SVt_RV);
- SvRV(rv) = sv_ref(sv);
- SvROK_on(rv);
-
- stash = fetch_stash(newSVpv(name,0), TRUE);
- SvOBJECT_on(sv);
- SvUPGRADE(sv, SVt_PVMG);
- SvSTASH(sv) = stash;
-
+ if (!sv)
+ return 0;
+ if (SvGMAGICAL(sv))
+ mg_get(sv);
+ if (!SvROK(sv))
+ return 0;
+ sv = (SV*)SvRV(sv);
+ if (!SvOBJECT(sv))
+ return 0;
+
+ return strEQ(HvNAME(SvSTASH(sv)), name);
+}
+
+SV*
+Perl_newSVrv(pTHX_ SV *rv, const char *classname)
+{
+ dTHR;
+ SV *sv;
+
+ new_SV(sv);
+
+ SV_CHECK_THINKFIRST(rv);
+ SvAMAGIC_off(rv);
+
+ if (SvTYPE(rv) < SVt_RV)
+ sv_upgrade(rv, SVt_RV);
+
+ (void)SvOK_off(rv);
+ SvRV(rv) = sv;
+ SvROK_on(rv);
+
+ if (classname) {
+ HV* stash = gv_stashpv(classname, TRUE);
+ (void)sv_bless(rv, stash);
+ }
+ return sv;
+}
+
+SV*
+Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv)
+{
+ if (!pv) {
+ sv_setsv(rv, &PL_sv_undef);
+ SvSETMAGIC(rv);
+ }
+ else
+ sv_setiv(newSVrv(rv,classname), (IV)PTR_CAST pv);
+ return rv;
+}
+
+SV*
+Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv)
+{
+ sv_setiv(newSVrv(rv,classname), iv);
+ return rv;
+}
+
+SV*
+Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv)
+{
+ sv_setnv(newSVrv(rv,classname), nv);
return rv;
}
+SV*
+Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n)
+{
+ sv_setpvn(newSVrv(rv,classname), pv, n);
+ return rv;
+}
+
+SV*
+Perl_sv_bless(pTHX_ SV *sv, HV *stash)
+{
+ dTHR;
+ SV *tmpRef;
+ if (!SvROK(sv))
+ Perl_croak(aTHX_ "Can't bless non-reference value");
+ tmpRef = SvRV(sv);
+ if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) {
+ if (SvREADONLY(tmpRef))
+ Perl_croak(aTHX_ PL_no_modify);
+ if (SvOBJECT(tmpRef)) {
+ if (SvTYPE(tmpRef) != SVt_PVIO)
+ --PL_sv_objcount;
+ SvREFCNT_dec(SvSTASH(tmpRef));
+ }
+ }
+ SvOBJECT_on(tmpRef);
+ if (SvTYPE(tmpRef) != SVt_PVIO)
+ ++PL_sv_objcount;
+ (void)SvUPGRADE(tmpRef, SVt_PVMG);
+ SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash);
+
+ if (Gv_AMG(stash))
+ SvAMAGIC_on(sv);
+ else
+ SvAMAGIC_off(sv);
+
+ return sv;
+}
+
+STATIC void
+S_sv_unglob(pTHX_ SV *sv)
+{
+ assert(SvTYPE(sv) == SVt_PVGV);
+ SvFAKE_off(sv);
+ if (GvGP(sv))
+ gp_free((GV*)sv);
+ if (GvSTASH(sv)) {
+ SvREFCNT_dec(GvSTASH(sv));
+ GvSTASH(sv) = Nullhv;
+ }
+ sv_unmagic(sv, '*');
+ Safefree(GvNAME(sv));
+ GvMULTI_off(sv);
+ SvFLAGS(sv) &= ~SVTYPEMASK;
+ SvFLAGS(sv) |= SVt_PVMG;
+}
+
void
-sv_unref(sv)
-SV* sv;
+Perl_sv_unref(pTHX_ SV *sv)
{
- sv_free(SvRV(sv));
+ SV* rv = SvRV(sv);
+
+ if (SvWEAKREF(sv)) {
+ sv_del_backref(sv);
+ SvWEAKREF_off(sv);
+ SvRV(sv) = 0;
+ return;
+ }
SvRV(sv) = 0;
SvROK_off(sv);
- if (!SvREADONLY(sv))
- SvTHINKFIRST_off(sv);
+ if (SvREFCNT(rv) != 1 || SvREADONLY(rv))
+ SvREFCNT_dec(rv);
+ else
+ sv_2mortal(rv); /* Schedule for freeing later */
+}
+
+void
+Perl_sv_taint(pTHX_ SV *sv)
+{
+ sv_magic((sv), Nullsv, 't', Nullch, 0);
}
+
+void
+Perl_sv_untaint(pTHX_ SV *sv)
+{
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
+ MAGIC *mg = mg_find(sv, 't');
+ if (mg)
+ mg->mg_len &= ~1;
+ }
+}
+
+bool
+Perl_sv_tainted(pTHX_ SV *sv)
+{
+ if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
+ MAGIC *mg = mg_find(sv, 't');
+ if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv))
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void
+Perl_sv_setpviv(pTHX_ SV *sv, IV iv)
+{
+ char buf[TYPE_CHARS(UV)];
+ char *ebuf;
+ char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf);
+
+ sv_setpvn(sv, ptr, ebuf - ptr);
+}
+
+
+void
+Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv)
+{
+ char buf[TYPE_CHARS(UV)];
+ char *ebuf;
+ char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf);
+
+ sv_setpvn(sv, ptr, ebuf - ptr);
+ SvSETMAGIC(sv);
+}
+
+#if defined(PERL_IMPLICIT_CONTEXT)
+void
+Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvf(sv, pat, &args);
+ va_end(args);
+}
+
+
+void
+Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvf_mg(sv, pat, &args);
+ va_end(args);
+}
+#endif
+
+void
+Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...)
+{
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvf(sv, pat, &args);
+ va_end(args);
+}
+
+void
+Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args)
+{
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+}
+
+void
+Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...)
+{
+ va_list args;
+ va_start(args, pat);
+ sv_vsetpvf_mg(sv, pat, &args);
+ va_end(args);
+}
+
+void
+Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args)
+{
+ sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ SvSETMAGIC(sv);
+}
+
+#if defined(PERL_IMPLICIT_CONTEXT)
+void
+Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ sv_vcatpvf(sv, pat, &args);
+ va_end(args);
+}
+
+void
+Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...)
+{
+ dTHX;
+ va_list args;
+ va_start(args, pat);
+ sv_vcatpvf_mg(sv, pat, &args);
+ va_end(args);
+}
+#endif
+
+void
+Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...)
+{
+ va_list args;
+ va_start(args, pat);
+ sv_vcatpvf(sv, pat, &args);
+ va_end(args);
+}
+
+void
+Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args)
+{
+ sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+}
+
+void
+Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...)
+{
+ va_list args;
+ va_start(args, pat);
+ sv_vcatpvf_mg(sv, pat, &args);
+ va_end(args);
+}
+
+void
+Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args)
+{
+ sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*));
+ SvSETMAGIC(sv);
+}
+
+void
+Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted)
+{
+ sv_setpvn(sv, "", 0);
+ sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted);
+}
+
+void
+Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted)
+{
+ dTHR;
+ char *p;
+ char *q;
+ char *patend;
+ STRLEN origlen;
+ I32 svix = 0;
+ static char nullstr[] = "(null)";
+
+ /* no matter what, this is a string now */
+ (void)SvPV_force(sv, origlen);
+
+ /* special-case "", "%s", and "%_" */
+ if (patlen == 0)
+ return;
+ if (patlen == 2 && pat[0] == '%') {
+ switch (pat[1]) {
+ case 's':
+ if (args) {
+ char *s = va_arg(*args, char*);
+ sv_catpv(sv, s ? s : nullstr);
+ }
+ else if (svix < svmax)
+ sv_catsv(sv, *svargs);
+ return;
+ case '_':
+ if (args) {
+ sv_catsv(sv, va_arg(*args, SV*));
+ return;
+ }
+ /* See comment on '_' below */
+ break;
+ }
+ }
+
+ patend = (char*)pat + patlen;
+ for (p = (char*)pat; p < patend; p = q) {
+ bool alt = FALSE;
+ bool left = FALSE;
+ char fill = ' ';
+ char plus = 0;
+ char intsize = 0;
+ STRLEN width = 0;
+ STRLEN zeros = 0;
+ bool has_precis = FALSE;
+ STRLEN precis = 0;
+
+ char esignbuf[4];
+ U8 utf8buf[10];
+ STRLEN esignlen = 0;
+
+ char *eptr = Nullch;
+ STRLEN elen = 0;
+ /* Times 4: a decimal digit takes more than 3 binary digits.
+ * NV_DIG: mantissa takes than many decimal digits.
+ * Plus 32: Playing safe. */
+ char ebuf[IV_DIG * 4 + NV_DIG + 32];
+ /* large enough for "%#.#f" --chip */
+ /* what about long double NVs? --jhi */
+ char c;
+ int i;
+ unsigned base;
+ IV iv;
+ UV uv;
+ NV nv;
+ STRLEN have;
+ STRLEN need;
+ STRLEN gap;
+
+ for (q = p; q < patend && *q != '%'; ++q) ;
+ if (q > p) {
+ sv_catpvn(sv, p, q - p);
+ p = q;
+ }
+ if (q++ >= patend)
+ break;
+
+ /* FLAGS */
+
+ while (*q) {
+ switch (*q) {
+ case ' ':
+ case '+':
+ plus = *q++;
+ continue;
+
+ case '-':
+ left = TRUE;
+ q++;
+ continue;
+
+ case '0':
+ fill = *q++;
+ continue;
+
+ case '#':
+ alt = TRUE;
+ q++;
+ continue;
+
+ default:
+ break;
+ }
+ break;
+ }
+
+ /* WIDTH */
+
+ switch (*q) {
+ case '1': case '2': case '3':
+ case '4': case '5': case '6':
+ case '7': case '8': case '9':
+ width = 0;
+ while (isDIGIT(*q))
+ width = width * 10 + (*q++ - '0');
+ break;
+
+ case '*':
+ if (args)
+ i = va_arg(*args, int);
+ else
+ i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ left |= (i < 0);
+ width = (i < 0) ? -i : i;
+ q++;
+ break;
+ }
+
+ /* PRECISION */
+
+ if (*q == '.') {
+ q++;
+ if (*q == '*') {
+ if (args)
+ i = va_arg(*args, int);
+ else
+ i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ precis = (i < 0) ? 0 : i;
+ q++;
+ }
+ else {
+ precis = 0;
+ while (isDIGIT(*q))
+ precis = precis * 10 + (*q++ - '0');
+ }
+ has_precis = TRUE;
+ }
+
+ /* SIZE */
+
+ switch (*q) {
+ case 'l':
+#ifdef HAS_QUAD
+ if (*(q + 1) == 'l') { /* lld */
+ intsize = 'q';
+ q += 2;
+ break;
+ }
+ case 'L': /* Ld */
+ case 'q': /* qd */
+ intsize = 'q';
+ q++;
+ break;
+#endif
+ case 'h':
+ /* FALL THROUGH */
+ case 'V':
+ intsize = *q++;
+ break;
+ }
+
+ /* CONVERSION */
+
+ switch (c = *q++) {
+
+ /* STRINGS */
+
+ case '%':
+ eptr = q - 1;
+ elen = 1;
+ goto string;
+
+ case 'c':
+ if (IN_UTF8) {
+ if (args)
+ uv = va_arg(*args, int);
+ else
+ uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+
+ eptr = (char*)utf8buf;
+ elen = uv_to_utf8((U8*)eptr, uv) - utf8buf;
+ goto string;
+ }
+ if (args)
+ c = va_arg(*args, int);
+ else
+ c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ eptr = &c;
+ elen = 1;
+ goto string;
+
+ case 's':
+ if (args) {
+ eptr = va_arg(*args, char*);
+ if (eptr)
+ elen = strlen(eptr);
+ else {
+ eptr = nullstr;
+ elen = sizeof nullstr - 1;
+ }
+ }
+ else if (svix < svmax) {
+ eptr = SvPVx(svargs[svix++], elen);
+ if (IN_UTF8) {
+ if (has_precis && precis < elen) {
+ I32 p = precis;
+ sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */
+ precis = p;
+ }
+ if (width) { /* fudge width (can't fudge elen) */
+ width += elen - sv_len_utf8(svargs[svix - 1]);
+ }
+ }
+ }
+ goto string;
+
+ case '_':
+ /*
+ * The "%_" hack might have to be changed someday,
+ * if ISO or ANSI decide to use '_' for something.
+ * So we keep it hidden from users' code.
+ */
+ if (!args)
+ goto unknown;
+ eptr = SvPVx(va_arg(*args, SV*), elen);
+
+ string:
+ if (has_precis && elen > precis)
+ elen = precis;
+ break;
+
+ /* INTEGERS */
+
+ case 'p':
+ if (args)
+ uv = (UV)PTR_CAST va_arg(*args, void*);
+ else
+ uv = (svix < svmax) ? (UV)PTR_CAST svargs[svix++] : 0;
+ base = 16;
+ goto integer;
+
+ case 'D':
+#ifdef IV_IS_QUAD
+ intsize = 'q';
+#else
+ intsize = 'l';
+#endif
+ /* FALL THROUGH */
+ case 'd':
+ case 'i':
+ if (args) {
+ switch (intsize) {
+ case 'h': iv = (short)va_arg(*args, int); break;
+ default: iv = va_arg(*args, int); break;
+ case 'l': iv = va_arg(*args, long); break;
+ case 'V': iv = va_arg(*args, IV); break;
+#ifdef HAS_QUAD
+ case 'q': iv = va_arg(*args, Quad_t); break;
+#endif
+ }
+ }
+ else {
+ iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0;
+ switch (intsize) {
+ case 'h': iv = (short)iv; break;
+ default: iv = (int)iv; break;
+ case 'l': iv = (long)iv; break;
+ case 'V': break;
+#ifdef HAS_QUAD
+ case 'q': iv = (Quad_t)iv; break;
+#endif
+ }
+ }
+ if (iv >= 0) {
+ uv = iv;
+ if (plus)
+ esignbuf[esignlen++] = plus;
+ }
+ else {
+ uv = -iv;
+ esignbuf[esignlen++] = '-';
+ }
+ base = 10;
+ goto integer;
+
+ case 'U':
+#ifdef IV_IS_QUAD
+ intsize = 'q';
+#else
+ intsize = 'l';
+#endif
+ /* FALL THROUGH */
+ case 'u':
+ base = 10;
+ goto uns_integer;
+
+ case 'b':
+ base = 2;
+ goto uns_integer;
+
+ case 'O':
+#ifdef IV_IS_QUAD
+ intsize = 'q';
+#else
+ intsize = 'l';
+#endif
+ /* FALL THROUGH */
+ case 'o':
+ base = 8;
+ goto uns_integer;
+
+ case 'X':
+ case 'x':
+ base = 16;
+
+ uns_integer:
+ if (args) {
+ switch (intsize) {
+ case 'h': uv = (unsigned short)va_arg(*args, unsigned); break;
+ default: uv = va_arg(*args, unsigned); break;
+ case 'l': uv = va_arg(*args, unsigned long); break;
+ case 'V': uv = va_arg(*args, UV); break;
+#ifdef HAS_QUAD
+ case 'q': uv = va_arg(*args, Quad_t); break;
+#endif
+ }
+ }
+ else {
+ uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0;
+ switch (intsize) {
+ case 'h': uv = (unsigned short)uv; break;
+ default: uv = (unsigned)uv; break;
+ case 'l': uv = (unsigned long)uv; break;
+ case 'V': break;
+#ifdef HAS_QUAD
+ case 'q': uv = (Quad_t)uv; break;
+#endif
+ }
+ }
+
+ integer:
+ eptr = ebuf + sizeof ebuf;
+ switch (base) {
+ unsigned dig;
+ case 16:
+ if (!uv)
+ alt = FALSE;
+ p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef";
+ do {
+ dig = uv & 15;
+ *--eptr = p[dig];
+ } while (uv >>= 4);
+ if (alt) {
+ esignbuf[esignlen++] = '0';
+ esignbuf[esignlen++] = c; /* 'x' or 'X' */
+ }
+ break;
+ case 8:
+ do {
+ dig = uv & 7;
+ *--eptr = '0' + dig;
+ } while (uv >>= 3);
+ if (alt && *eptr != '0')
+ *--eptr = '0';
+ break;
+ case 2:
+ do {
+ dig = uv & 1;
+ *--eptr = '0' + dig;
+ } while (uv >>= 1);
+ if (alt && *eptr != '0')
+ *--eptr = '0';
+ break;
+ default: /* it had better be ten or less */
+#if defined(PERL_Y2KWARN)
+ if (ckWARN(WARN_MISC)) {
+ STRLEN n;
+ char *s = SvPV(sv,n);
+ if (n >= 2 && s[n-2] == '1' && s[n-1] == '9'
+ && (n == 2 || !isDIGIT(s[n-3])))
+ {
+ Perl_warner(aTHX_ WARN_MISC,
+ "Possible Y2K bug: %%%c %s",
+ c, "format string following '19'");
+ }
+ }
+#endif
+ do {
+ dig = uv % base;
+ *--eptr = '0' + dig;
+ } while (uv /= base);
+ break;
+ }
+ elen = (ebuf + sizeof ebuf) - eptr;
+ if (has_precis) {
+ if (precis > elen)
+ zeros = precis - elen;
+ else if (precis == 0 && elen == 1 && *eptr == '0')
+ elen = 0;
+ }
+ break;
+
+ /* FLOATING POINT */
+
+ case 'F':
+ c = 'f'; /* maybe %F isn't supported here */
+ /* FALL THROUGH */
+ case 'e': case 'E':
+ case 'f':
+ case 'g': case 'G':
+
+ /* This is evil, but floating point is even more evil */
+
+ if (args)
+ nv = va_arg(*args, NV);
+ else
+ nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0;
+
+ need = 0;
+ if (c != 'e' && c != 'E') {
+ i = PERL_INT_MIN;
+ (void)frexp(nv, &i);
+ if (i == PERL_INT_MIN)
+ Perl_die(aTHX_ "panic: frexp");
+ if (i > 0)
+ need = BIT_DIGITS(i);
+ }
+ need += has_precis ? precis : 6; /* known default */
+ if (need < width)
+ need = width;
+
+ need += 20; /* fudge factor */
+ if (PL_efloatsize < need) {
+ Safefree(PL_efloatbuf);
+ PL_efloatsize = need + 20; /* more fudge */
+ New(906, PL_efloatbuf, PL_efloatsize, char);
+ PL_efloatbuf[0] = '\0';
+ }
+
+ eptr = ebuf + sizeof ebuf;
+ *--eptr = '\0';
+ *--eptr = c;
+#ifdef USE_LONG_DOUBLE
+ {
+ char* p = PERL_PRIfldbl + sizeof(PERL_PRIfldbl) - 3;
+ while (p >= PERL_PRIfldbl) { *--eptr = *p--; }
+ }
+#endif
+ if (has_precis) {
+ base = precis;
+ do { *--eptr = '0' + (base % 10); } while (base /= 10);
+ *--eptr = '.';
+ }
+ if (width) {
+ base = width;
+ do { *--eptr = '0' + (base % 10); } while (base /= 10);
+ }
+ if (fill == '0')
+ *--eptr = fill;
+ if (left)
+ *--eptr = '-';
+ if (plus)
+ *--eptr = plus;
+ if (alt)
+ *--eptr = '#';
+ *--eptr = '%';
+
+ {
+ RESTORE_NUMERIC_STANDARD();
+ (void)sprintf(PL_efloatbuf, eptr, nv);
+ RESTORE_NUMERIC_LOCAL();
+ }
+
+ eptr = PL_efloatbuf;
+ elen = strlen(PL_efloatbuf);
+
+#ifdef USE_LOCALE_NUMERIC
+ /*
+ * User-defined locales may include arbitrary characters.
+ * And, unfortunately, some (broken) systems may allow the
+ * "C" locale to be overridden by a malicious user.
+ * XXX This is an extreme way to cope with broken systems.
+ */
+ if (maybe_tainted && PL_tainting) {
+ /* safe if it matches /[-+]?\d*(\.\d*)?([eE][-+]?\d*)?/ */
+ if (*eptr == '-' || *eptr == '+')
+ ++eptr;
+ while (isDIGIT(*eptr))
+ ++eptr;
+ if (*eptr == '.') {
+ ++eptr;
+ while (isDIGIT(*eptr))
+ ++eptr;
+ }
+ if (*eptr == 'e' || *eptr == 'E') {
+ ++eptr;
+ if (*eptr == '-' || *eptr == '+')
+ ++eptr;
+ while (isDIGIT(*eptr))
+ ++eptr;
+ }
+ if (*eptr)
+ *maybe_tainted = TRUE; /* results are suspect */
+ eptr = PL_efloatbuf;
+ }
+#endif /* USE_LOCALE_NUMERIC */
+
+ break;
+
+ /* SPECIAL */
+
+ case 'n':
+ i = SvCUR(sv) - origlen;
+ if (args) {
+ switch (intsize) {
+ case 'h': *(va_arg(*args, short*)) = i; break;
+ default: *(va_arg(*args, int*)) = i; break;
+ case 'l': *(va_arg(*args, long*)) = i; break;
+ case 'V': *(va_arg(*args, IV*)) = i; break;
+#ifdef HAS_QUAD
+ case 'q': *(va_arg(*args, Quad_t*)) = i; break;
+#endif
+ }
+ }
+ else if (svix < svmax)
+ sv_setuv(svargs[svix++], (UV)i);
+ continue; /* not "break" */
+
+ /* UNKNOWN */
+
+ default:
+ unknown:
+ if (!args && ckWARN(WARN_PRINTF) &&
+ (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) {
+ SV *msg = sv_newmortal();
+ Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ",
+ (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf");
+ if (c) {
+#ifdef UV_IS_QUAD
+ if (isPRINT(c))
+ Perl_sv_catpvf(aTHX_ msg,
+ "\"%%%c\"", c & 0xFF);
+ else
+ Perl_sv_catpvf(aTHX_ msg,
+ "\"%%\\%03" PERL_PRIo64 "\"",
+ (UV)c & 0xFF);
+#else
+ Perl_sv_catpvf(aTHX_ msg, isPRINT(c) ?
+ "\"%%%c\"" : "\"%%\\%03o\"",
+ c & 0xFF);
+#endif
+ } else
+ sv_catpv(msg, "end of string");
+ Perl_warner(aTHX_ WARN_PRINTF, "%_", msg); /* yes, this is reentrant */
+ }
+
+ /* output mangled stuff ... */
+ if (c == '\0')
+ --q;
+ eptr = p;
+ elen = q - p;
+
+ /* ... right here, because formatting flags should not apply */
+ SvGROW(sv, SvCUR(sv) + elen + 1);
+ p = SvEND(sv);
+ memcpy(p, eptr, elen);
+ p += elen;
+ *p = '\0';
+ SvCUR(sv) = p - SvPVX(sv);
+ continue; /* not "break" */
+ }
+
+ have = esignlen + zeros + elen;
+ need = (have > width ? have : width);
+ gap = need - have;
+
+ SvGROW(sv, SvCUR(sv) + need + 1);
+ p = SvEND(sv);
+ if (esignlen && fill == '0') {
+ for (i = 0; i < esignlen; i++)
+ *p++ = esignbuf[i];
+ }
+ if (gap && !left) {
+ memset(p, fill, gap);
+ p += gap;
+ }
+ if (esignlen && fill != '0') {
+ for (i = 0; i < esignlen; i++)
+ *p++ = esignbuf[i];
+ }
+ if (zeros) {
+ for (i = zeros; i; i--)
+ *p++ = '0';
+ }
+ if (elen) {
+ memcpy(p, eptr, elen);
+ p += elen;
+ }
+ if (gap && left) {
+ memset(p, ' ', gap);
+ p += gap;
+ }
+ *p = '\0';
+ SvCUR(sv) = p - SvPVX(sv);
+ }
+}
+
+
+#ifdef PERL_OBJECT
+#define NO_XSLOCKS
+#include "XSUB.h"
+#endif
+
+static void
+do_report_used(pTHXo_ SV *sv)
+{
+ if (SvTYPE(sv) != SVTYPEMASK) {
+ /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */
+ PerlIO_printf(PerlIO_stderr(), "****\n");
+ sv_dump(sv);
+ }
+}
+
+static void
+do_clean_objs(pTHXo_ SV *sv)
+{
+ SV* rv;
+
+ if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) {
+ DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));)
+ SvROK_off(sv);
+ SvRV(sv) = 0;
+ SvREFCNT_dec(rv);
+ }
+
+ /* XXX Might want to check arrays, etc. */
+}
+
+#ifndef DISABLE_DESTRUCTOR_KLUDGE
+static void
+do_clean_named_objs(pTHXo_ SV *sv)
+{
+ if (SvTYPE(sv) == SVt_PVGV) {
+ if ( SvOBJECT(GvSV(sv)) ||
+ GvAV(sv) && SvOBJECT(GvAV(sv)) ||
+ GvHV(sv) && SvOBJECT(GvHV(sv)) ||
+ GvIO(sv) && SvOBJECT(GvIO(sv)) ||
+ GvCV(sv) && SvOBJECT(GvCV(sv)) )
+ {
+ DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));)
+ SvREFCNT_dec(sv);
+ }
+ }
+}
+#endif
+
+static void
+do_clean_all(pTHXo_ SV *sv)
+{
+ DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );)
+ SvFLAGS(sv) |= SVf_BREAK;
+ SvREFCNT_dec(sv);
+}
+