revertd.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42954 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -8,6 +8,10 @@ Mon Sep 16 00:44:23 2013  Masaki Matsushita  <glass.saga@gmail.com>
 	* ext/socket/mkconstants.rb: define MSG_FASTOPEN.
 	  [ruby-core:57138] [Feature #8897]
 
+Sun Sep 15 13:31:23 2013  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* rational.c (nurat_div): reverted r28844, r28886 and r28887.
+
 Sat Sep 14 06:08:10 2013  Eric Hodel  <drbrain@segment7.net>
 
 	* dir.c (dir_s_glob):  [DOC] Improve wording and layout.

rational.c

@@ -950,19 +950,8 @@ nurat_div(VALUE self, VALUE other)
 			    other, ONE, '/');
 	}
     }
-    else if (RB_TYPE_P(other, T_FLOAT)) {
-	{
-	    double x = RFLOAT_VALUE(other), den;
-	    get_dat1(self);
-
-	    if (isnan(x)) return DBL2NUM(NAN);
-	    if (isinf(x)) return INT2FIX(0);
-	    if (x != 0.0 && modf(x, &den) == 0.0) {
-		return rb_rational_raw2(dat->num, f_mul(rb_dbl2big(den), dat->den));
-	    }
-	}
+    else if (RB_TYPE_P(other, T_FLOAT))
 	return rb_funcall(f_to_f(self), '/', 1, other);
-    }
     else if (RB_TYPE_P(other, T_RATIONAL)) {
 	if (f_zero_p(other))
 	    rb_raise_zerodiv();