From 67afd7e3150d45e5b0201cdce571ca0f4c64e191 Mon Sep 17 00:00:00 2001
From: Eric Niebler <eric@boostpro.com>
Date: Thu, 7 May 2009 17:47:08 +0000
Subject: [PATCH] eliminate noisy warning on msvc, fixes #2993

[SVN r52837]
---
 include/boost/utility/addressof.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/boost/utility/addressof.hpp b/include/boost/utility/addressof.hpp
index ac42a51..95cd92f 100644
--- a/include/boost/utility/addressof.hpp
+++ b/include/boost/utility/addressof.hpp
@@ -27,6 +27,9 @@ template<class T> struct addr_impl_ref
 
     inline addr_impl_ref( T & v ): v_( v ) {}
     inline operator T& () const { return v_; }
+
+private:
+    addr_impl_ref & operator=(const addr_impl_ref &);
 };
 
 template<class T> struct addressof_impl