2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 98e8b088fa..bfd2a2a980 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Wed Jul 10 20:47:51 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Wed Jul 10 20:48:22 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (sizeof_bdigit_dbl): check sizeof(BDIGIT_DBL).
 
 	* internal.h (STATIC_ASSERT): move from enum.c.
 
diff --git a/bignum.c b/bignum.c
index 8d003796c3..d432b0b031 100644
--- a/bignum.c
+++ b/bignum.c
@@ -44,6 +44,8 @@ static VALUE big_three = Qnil;
 # endif
 #endif
 
+STATIC_ASSERT(sizeof_bdigit_dbl, sizeof(BDIGIT_DBL) == SIZEOF_BDIGIT_DBL);
+
 #ifdef WORDS_BIGENDIAN
 #   define HOST_BIGENDIAN_P 1
 #else