nobu	2018-08-03 16:24:33 +0900 (Fri, 03 Aug 2018)

  New Revision: 64170

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64170

  Log:
    random.c: use rb_check_funcall

  Modified files:
    trunk/random.c
Index: random.c
===================================================================
--- random.c	(revision 64169)
+++ random.c	(revision 64170)
@@ -1165,8 +1165,7 @@ range_values(VALUE vmax, VALUE *begp, VA https://github.com/ruby/ruby/blob/trunk/random.c#L1165
     if (!rb_range_values(vmax, begp, &end, exclp)) return Qfalse;
     if (endp) *endp = end;
     if (NIL_P(end)) return Qnil;
-    if (!rb_respond_to(end, id_minus)) return Qfalse;
-    r = rb_funcallv(end, id_minus, 1, begp);
+    r = rb_check_funcall(end, id_minus, 1, begp);
     if (NIL_P(r)) return Qfalse;
     return r;
 }

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