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* bignum.c (bigfixize): zero length Bignum is 0.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22920 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-03-13 00:30:15 +00:00
parent 0f71c10acb
commit 96c31ac787
2 changed files with 6 additions and 1 deletions
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ChangeLog
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@ -1,3 +1,7 @@
Fri Mar 13 09:30:12 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* bignum.c (bigfixize): zero length Bignum is 0.
Fri Mar 13 08:06:48 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* util.c (rv_strdup): macro to duplicate nul-terminated string.

3
bignum.c
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@ -191,7 +191,8 @@ bigfixize(VALUE x)
long len = RBIGNUM_LEN(x);
BDIGIT *ds = BDIGITS(x);
if (len > 0 && len*SIZEOF_BDIGITS <= sizeof(long)) {
if (len == 0) return INT2FIX(0);
if (len*SIZEOF_BDIGITS <= sizeof(long)) {
long num = 0;
#if 2*SIZEOF_BDIGITS > SIZEOF_LONG
num = (long)ds[0];