* bignum.c (bigzero_p): check from MSB to LSB. [ruby-dev:34649]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@16384 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/bignum.c b/bignum.c
index 536094f23..277923f55 100644
--- a/bignum.c
+++ b/bignum.c
@@ -44,7 +44,7 @@ static int
 bigzero_p(VALUE x)
 {
     long i;
-    for (i = 0; i < RBIGNUM_LEN(x); ++i) {
+    for (i = RBIGNUM_LEN(x) - 1; 0 <= i; i--) {
 	if (BDIGITS(x)[i]) return 0;
     }
     return 1;