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* bignum.c (bigzero_p): removing BDIGITS() inside of the

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loop. inspired by Hitohiro Kanai's blog entry
  <http://d.hatena.ne.jp/CanI/20090807/1249657492>.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2009-08-08 02:47:02 +00:00
parent ac2557e09f
commit 4307340208
2 changed files with 9 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Sat Aug 8 11:42:44 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
* bignum.c (bigzero_p): removing BDIGITS() inside of the
loop. inspired by Hitohiro Kanai's blog entry
<http://d.hatena.ne.jp/CanI/20090807/1249657492>.
Sat Aug 8 06:18:29 2009 Nobuyoshi Nakada <nobu@ruby-lang.org> Sat Aug 8 06:18:29 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* marshal.c (w_symbol r_symlink, r_symbol, r_object0): fix for * marshal.c (w_symbol r_symlink, r_symbol, r_object0): fix for

4
bignum.c
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@ -46,8 +46,10 @@ static int
bigzero_p(VALUE x) bigzero_p(VALUE x)
{ {
long i; long i;
BDIGIT *ds = BDIGITS(x);
for (i = RBIGNUM_LEN(x) - 1; 0 <= i; i--) { for (i = RBIGNUM_LEN(x) - 1; 0 <= i; i--) {
if (BDIGITS(x)[i]) return 0; if (ds[i]) return 0;
} }
return 1; return 1;
} }