nobu	2016-07-08 14:38:16 +0900 (Fri, 08 Jul 2016)

  New Revision: 55612

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=55612

  Log:
    numeric.c: round as double
    
    * numeric.c (flo_round): compare as double, not long double with
      i387.

  Modified files:
    trunk/numeric.c
Index: numeric.c
===================================================================
--- numeric.c	(revision 55611)
+++ numeric.c	(revision 55612)
@@ -2007,10 +2007,10 @@ flo_round(int argc, VALUE *argv, VALUE n https://github.com/ruby/ruby/blob/trunk/numeric.c#L2007
     f = pow(10, ndigits);
     x = round(number * f);
     if (x > 0) {
-	if ((x + 0.5) / f <= number) x += 1;
+	if ((double)((x + 0.5) / f) <= number) x += 1;
     }
     else {
-	if ((x - 0.5) / f >= number) x -= 1;
+	if ((double)((x - 0.5) / f) >= number) x -= 1;
     }
     return DBL2NUM(x / f);
 }

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