From 05605ec0b6d1f6f61edc7b932863692bfd2f125e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Sat, 5 Jul 2008 22:45:36 +0000
Subject: [PATCH] Ticket #2073: slist::swap doesn't work properly under certain
 conditions

[SVN r47122]
---
 include/boost/intrusive/detail/common_slist_algorithms.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/intrusive/detail/common_slist_algorithms.hpp b/include/boost/intrusive/detail/common_slist_algorithms.hpp
index ada51a9..d837ad0 100644
--- a/include/boost/intrusive/detail/common_slist_algorithms.hpp
+++ b/include/boost/intrusive/detail/common_slist_algorithms.hpp
@@ -76,7 +76,7 @@ class common_slist_algorithms
 
    static void transfer_after(node_ptr p, node_ptr b, node_ptr e)
    {
-      if (p != b && p != e) {
+      if (p != b && p != e && b != e) {
          node_ptr next_b = NodeTraits::get_next(b);
          node_ptr next_e = NodeTraits::get_next(e);
          node_ptr next_p = NodeTraits::get_next(p);