bignum.c: sizeof_bdigit_dbl

* bignum.c (sizeof_bdigit_dbl): check sizeof(BDIGIT_DBL).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

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.
 

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