mrkn	2016-11-12 15:58:35 +0900 (Sat, 12 Nov 2016)

  New Revision: 56743

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56743

  Log:
    rational.c: optimize Rational#to_i
    
    * rational.c (nurat_truncate): optimize Rational#to_i.
      Author: Tadashi Saito <tad.a.digger@g...>

  Modified files:
    trunk/rational.c
Index: rational.c
===================================================================
--- rational.c	(revision 56742)
+++ rational.c	(revision 56743)
@@ -1243,9 +1243,9 @@ static VALUE https://github.com/ruby/ruby/blob/trunk/rational.c#L1243
 nurat_truncate(VALUE self)
 {
     get_dat1(self);
-    if (f_negative_p(dat->num))
-	return f_negate(f_idiv(f_negate(dat->num), dat->den));
-    return f_idiv(dat->num, dat->den);
+    if (INT_NEGATIVE_P(dat->num))
+	return rb_int_uminus(rb_int_idiv(rb_int_uminus(dat->num), dat->den));
+    return rb_int_idiv(dat->num, dat->den);
 }
 
 static VALUE

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