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* bignum.c (bigtrunc): RBIGNUM(x)->len may be zero. out of bound

Browse source 
access.  [ruby-dev:31404]

* sprintf.c (rb_str_format): small float should not call
  rb_dbl2big().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13074 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2007-08-16 22:22:24 +00:00
parent 04176dc21f
commit bef0b1fa36
4 changed files with 14 additions and 1 deletions
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2
.gdbinit
View file

@ -2,7 +2,7 @@ define rp
if (VALUE)$arg0 & 1
printf "FIXNUM: %d\n", $arg0 >> 1
else
if ((VALUE)$arg0 & ~(~(VALUE)0<<RUBY_SPECIAL_SHIFT)) == SYMBOL_FLAG
if ((VALUE)$arg0 & ~(~(VALUE)0<<RUBY_SPECIAL_SHIFT)) == RUBY_SYMBOL_FLAG
printf "SYMBOL(%d)\n", $arg0 >> 8
else
if $arg0 == 0

8
ChangeLog
View file

@ -18,6 +18,14 @@ Fri Aug 17 01:21:29 2007 Koichi Sasada <ko1@atdot.net>
* insns.def (throw): insert a RUBY_VM_CHECK_INTS(). [ruby-dev:31361]
Thu Aug 16 20:40:50 2007 Yukihiro Matsumoto <matz@ruby-lang.org>
* bignum.c (bigtrunc): RBIGNUM(x)->len may be zero. out of bound
access. [ruby-dev:31404]
* sprintf.c (rb_str_format): small float should not call
rb_dbl2big().
Thu Aug 16 22:10:06 2007 Koichi Sasada <ko1@atdot.net>
* compile.c (iseq_compile_each): fix next/redo stack consistency.

1
bignum.c
View file

@ -97,6 +97,7 @@ bigtrunc(VALUE x)
long len = RBIGNUM(x)->len;
BDIGIT *ds = BDIGITS(x);
if (len == 0) return x;
while (--len && !ds[len]);
RBIGNUM(x)->len = ++len;
return x;

4
sprintf.c
View file

@ -522,6 +522,10 @@ rb_str_format(int argc, const VALUE *argv, VALUE fmt)
bin_retry:
switch (TYPE(val)) {
case T_FLOAT:
if (FIXABLE((long)RFLOAT(val)->value)) {
val = LONG2FIX((long)RFLOAT(val)->value);
goto bin_retry;
}
val = rb_dbl2big(RFLOAT(val)->value);
if (FIXNUM_P(val)) goto bin_retry;
bignum = 1;