mrkn	2016-11-11 23:39:34 +0900 (Fri, 11 Nov 2016)

  New Revision: 56708

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56708

  Log:
    rational.c: prevent unused warning
    
    * rational.c (f_mod): define only when NDEBUG is not defined to prevent
      unused warning

  Modified files:
    trunk/rational.c
Index: rational.c
===================================================================
--- rational.c	(revision 56707)
+++ rational.c	(revision 56708)
@@ -101,7 +101,10 @@ f_lt_p(VALUE x, VALUE y) https://github.com/ruby/ruby/blob/trunk/rational.c#L101
     return RTEST(rb_funcall(x, '<', 1, y));
 }
 
+#ifndef NDEBUG
+/* f_mod is used only in f_gcd defined when NDEBUG is not defined */
 binop(mod, '%')
+#endif
 
 inline static VALUE
 f_mul(VALUE x, VALUE y)

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