* numeric.c (fix_aref): avoid a possible undefined behavior.

  1L << 63 on 64-bit platform is undefined, at least, according to
  ISO/IEC 9899 (C99) 6.5.7.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43222 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/numeric.c b/numeric.c
index 6979b21b65..83ed3e469d 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3443,7 +3443,7 @@ fix_aref(VALUE fix, VALUE idx)
     i = FIX2LONG(idx);
 
     if (i < 0) return INT2FIX(0);
-    if (SIZEOF_LONG*CHAR_BIT-1 < i) {
+    if (SIZEOF_LONG*CHAR_BIT-1 <= i) {
 	if (val < 0) return INT2FIX(1);
 	return INT2FIX(0);
     }