matz	2009-10-25 01:48:05 +0900 (Sun, 25 Oct 2009)

  New Revision: 25453

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=25453

  Log:
    * object.c (rb_obj_cmp): defines Object#<=>.  [ruby-core:24063]

  Modified files:
    trunk/ChangeLog
    trunk/lib/delegate.rb
    trunk/object.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 25452)
+++ ChangeLog	(revision 25453)
@@ -1,3 +1,7 @@
+Sat Oct 24 13:38:45 2009  Yukihiro Matsumoto  <matz@r...>
+
+	* object.c (rb_obj_cmp): defines Object#<=>.  [ruby-core:24063]
+
 Sat Oct 24 00:36:47 2009  Tanaka Akira  <akr@f...>
 
 	* io.c (io_cntl): update max file descriptor by the result of
Index: object.c
===================================================================
--- object.c	(revision 25452)
+++ object.c	(revision 25453)
@@ -1119,6 +1119,15 @@
 }
 
 
+/* :nodoc: */
+static VALUE
+rb_obj_cmp(VALUE obj1, VALUE obj2)
+{
+    if (obj1 == obj2 || rb_obj_equal(obj1, obj2))
+	return INT2FIX(0);
+    return Qnil;
+}
+
 /***********************************************************************
  *
  * Document-class: Module
@@ -2555,6 +2564,7 @@
     rb_define_method(rb_mKernel, "!~", rb_obj_not_match, 1);
     rb_define_method(rb_mKernel, "eql?", rb_obj_equal, 1);
     rb_define_method(rb_mKernel, "hash", rb_obj_hash, 0);
+    rb_define_method(rb_mKernel, "<=>", rb_obj_cmp, 1);
 
     rb_define_method(rb_mKernel, "class", rb_obj_class, 0);
     rb_define_method(rb_mKernel, "clone", rb_obj_clone, 0);
Index: lib/delegate.rb
===================================================================
--- lib/delegate.rb	(revision 25452)
+++ lib/delegate.rb	(revision 25453)
@@ -115,7 +115,7 @@
 # implementation, see SimpleDelegator.
 #
 class Delegator
-  [:to_s,:inspect,:=~,:!~,:===].each do |m|
+  [:to_s,:inspect,:=~,:!~,:===,:<=>].each do |m|
     undef_method m
   end
 

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