bignum.c (bary_zero_p): constify

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/bignum.c b/bignum.c
index 8e52023663..de24670da3 100644
--- a/bignum.c
+++ b/bignum.c
@@ -432,7 +432,7 @@ bary_small_rshift(BDIGIT *zds, const BDIGIT *xds, size_t n, int shift, BDIGIT hi
 }
 
 static int
-bary_zero_p(BDIGIT *xds, size_t xn)
+bary_zero_p(const BDIGIT *xds, size_t xn)
 {
     if (xn == 0)
         return 1;