PERL_UNUSED_RESULT(Gconvert((NV)(nv), (int)ndig, 0, buffer))
#endif
-#ifdef PERL_NEW_COPY_ON_WRITE
-# ifndef SV_COW_THRESHOLD
+#ifndef SV_COW_THRESHOLD
# define SV_COW_THRESHOLD 0 /* COW iff len > K */
-# endif
-# ifndef SV_COWBUF_THRESHOLD
+#endif
+#ifndef SV_COWBUF_THRESHOLD
# define SV_COWBUF_THRESHOLD 1250 /* COW iff len > K */
-# endif
-# ifndef SV_COW_MAX_WASTE_THRESHOLD
+#endif
+#ifndef SV_COW_MAX_WASTE_THRESHOLD
# define SV_COW_MAX_WASTE_THRESHOLD 80 /* COW iff (len - cur) < K */
-# endif
-# ifndef SV_COWBUF_WASTE_THRESHOLD
+#endif
+#ifndef SV_COWBUF_WASTE_THRESHOLD
# define SV_COWBUF_WASTE_THRESHOLD 80 /* COW iff (len - cur) < K */
-# endif
-# ifndef SV_COW_MAX_WASTE_FACTOR_THRESHOLD
+#endif
+#ifndef SV_COW_MAX_WASTE_FACTOR_THRESHOLD
# define SV_COW_MAX_WASTE_FACTOR_THRESHOLD 2 /* COW iff len < (cur * K) */
-# endif
-# ifndef SV_COWBUF_WASTE_FACTOR_THRESHOLD
+#endif
+#ifndef SV_COWBUF_WASTE_FACTOR_THRESHOLD
# define SV_COWBUF_WASTE_FACTOR_THRESHOLD 2 /* COW iff len < (cur * K) */
-# endif
#endif
/* Work around compiler warnings about unsigned >= THRESHOLD when thres-
hold is 0. */
return;
}
-static void
-S_glob_assign_ref(pTHX_ SV *const dstr, SV *const sstr)
+void
+Perl_gv_setref(pTHX_ SV *const dstr, SV *const sstr)
{
SV * const sref = SvRV(sstr);
SV *dref;
U8 import_flag = 0;
const U32 stype = SvTYPE(sref);
- PERL_ARGS_ASSERT_GLOB_ASSIGN_REF;
+ PERL_ARGS_ASSERT_GV_SETREF;
if (intro) {
GvINTRO_off(dstr); /* one-shot flag */
Perl_magic_clearisa(aTHX_ NULL, mg);
}
else if (stype == SVt_PVIO) {
- DEBUG_o(Perl_deb(aTHX_ "glob_assign_ref clearing PL_stashcache\n"));
+ DEBUG_o(Perl_deb(aTHX_ "gv_setref clearing PL_stashcache\n"));
/* It's a cache. It will rebuild itself quite happily.
It's a lot of effort to work out exactly which key (or keys)
might be invalidated by the creation of the this file handle.
if (dtype >= SVt_PV) {
if (isGV_with_GP(dstr)) {
- glob_assign_ref(dstr, sstr);
+ gv_setref(dstr, sstr);
return;
}
if (SvPVX_const(dstr)) {
=for apidoc sv_catpvn_flags
Concatenates the string onto the end of the string which is in the SV. The
-C<len> indicates number of bytes to copy. If the SV has the UTF-8
-status set, then the bytes appended should be valid UTF-8.
+C<len> indicates number of bytes to copy.
+
+By default, the string appended is assumed to be valid UTF-8 if the SV has
+the UTF-8 status set, and a string of bytes otherwise. One can force the
+appended string to be interpreted as UTF-8 by supplying the C<SV_CATUTF8>
+flag, and as bytes by supplying the C<SV_CATBYTES> flag; the SV or the
+string appended will be upgraded to UTF-8 if necessary.
+
If C<flags> has the C<SV_SMAGIC> bit set, will
C<mg_set> on C<dsv> afterwards if appropriate.
C<sv_catpvn> and C<sv_catpvn_nomg> are implemented
if (ssv) {
STRLEN slen;
const char *spv = SvPV_flags_const(ssv, slen, flags);
- if (spv) {
- if (flags & SV_GMAGIC)
+ if (flags & SV_GMAGIC)
SvGETMAGIC(dsv);
- sv_catpvn_flags(dsv, spv, slen,
+ sv_catpvn_flags(dsv, spv, slen,
DO_UTF8(ssv) ? SV_CATUTF8 : SV_CATBYTES);
- if (flags & SV_SMAGIC)
+ if (flags & SV_SMAGIC)
SvSETMAGIC(dsv);
- }
}
}
*/
#define PUSH_EXTEND_MORTAL__SV_C(AnSv) \
STMT_START { \
- EXTEND_MORTAL(1); \
- PL_tmps_stack[++PL_tmps_ix] = (AnSv); \
+ SSize_t ix = ++PL_tmps_ix; \
+ if (UNLIKELY(ix >= PL_tmps_max)) \
+ ix = tmps_grow_p(ix); \
+ PL_tmps_stack[ix] = (AnSv); \
} STMT_END
/*
{
dVAR;
if (!sv)
- return NULL;
+ return sv;
if (SvIMMORTAL(sv))
return sv;
PUSH_EXTEND_MORTAL__SV_C(sv);
#if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN || \
LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
# define LONGDOUBLE_DOUBLEDOUBLE
-# define DOUBLEDOUBLE_MAXBITS 1028
+/* The first double can be as large as 2**1023, or '1' x '0' x 1023.
+ * The second double can be as small as 2**-1074, or '0' x 1073 . '1'.
+ * The sum of them can be '1' . '0' x 2096 . '1', with implied radix point
+ * after the first 1023 zero bits. */
+# define DOUBLEDOUBLE_MAXBITS 2098
#endif
/* vhex will contain the values (0..15) of the hex digits ("nybbles"
* of 4 bits); 1 for the implicit 1, and the mantissa bits, four bits
- * per xdigit. */
+ * per xdigit. For the double-double case, this can be rather many. */
#ifdef LONGDOUBLE_DOUBLEDOUBLE
# define VHEX_SIZE (1+DOUBLEDOUBLE_MAXBITS/4)
#else
* Since each double has their own exponent, the
* doubles may float (haha) rather far from each
* other, and the number of required bits is much
- * larger, up to total of 1028 bits. (NOTE: this
- * is not actually implemented properly yet,
- * we are using just the first double, see
- * S_hextract() for details. But let's prepare
- * for the future.) */
-
- /* 2 hexdigits for each byte. */
+ * larger, up to total of DOUBLEDOUBLE_MAXBITS bits.
+ * See the definition of DOUBLEDOUBLE_MAXBITS.
+ *
+ * Need 2 hexdigits for each byte. */
need += (DOUBLEDOUBLE_MAXBITS/8 + 1) * 2;
/* the size for the exponent already added */
#endif
PL_DBsingle = sv_dup(proto_perl->IDBsingle, param);
PL_DBtrace = sv_dup(proto_perl->IDBtrace, param);
PL_DBsignal = sv_dup(proto_perl->IDBsignal, param);
+ Copy(proto_perl->IDBcontrol, PL_DBcontrol, DBVARMG_COUNT, IV);
/* symbol tables */
PL_defstash = hv_dup_inc(proto_perl->Idefstash, param);
{
if (PL_op) {
SV* varname = NULL;
+ const char *desc;
if (uninit_sv && PL_curpad) {
varname = find_uninit_var(PL_op, uninit_sv,0);
if (varname)
sv_insert(varname, 0, 0, " ", 1);
}
+ desc = PL_op->op_type == OP_STRINGIFY && PL_op->op_folded
+ ? "join or string"
+ : OP_DESC(PL_op);
/* PL_warn_uninit_sv is constant */
GCC_DIAG_IGNORE(-Wformat-nonliteral);
/* diag_listed_as: Use of uninitialized value%s */
Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit_sv,
SVfARG(varname ? varname : &PL_sv_no),
- " in ", OP_DESC(PL_op));
+ " in ", desc);
GCC_DIAG_RESTORE;
}
else {
https://perl5.git.perl.org / perl5.git / blobdiff