From c98006280149a7d5d72405cad4cd0a599dc1f895 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Sat, 22 Sep 2007 06:15:21 +0000
Subject: [PATCH] Sign extension bug. Not should be applied after the constant
 has been expanded to size_t. Thanks to Glenn Schrader.

[SVN r39470]
---
 include/boost/intrusive/pointer_plus_bit.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/intrusive/pointer_plus_bit.hpp b/include/boost/intrusive/pointer_plus_bit.hpp
index 35542b2..02290e6 100644
--- a/include/boost/intrusive/pointer_plus_bit.hpp
+++ b/include/boost/intrusive/pointer_plus_bit.hpp
@@ -54,7 +54,7 @@ struct pointer_plus_bit<T*>
    typedef T*        pointer;
 
    static pointer get_pointer(pointer n)
-   {  return pointer(std::size_t(n) & std::size_t(~1u));  }
+   {  return pointer(std::size_t(n) & ~std::size_t(1u));  }
 
    static void set_pointer(pointer &n, pointer p)
    {