From 71b99683b9bea25e116ba6c00e5b275186971c5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Mon, 21 Apr 2014 22:52:06 +0200
Subject: [PATCH] Reverted a (premature) optimization that can lead to out of
 bound write.

---
 include/boost/container/detail/flat_tree.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/boost/container/detail/flat_tree.hpp b/include/boost/container/detail/flat_tree.hpp
index 2988ebb..851e15f 100644
--- a/include/boost/container/detail/flat_tree.hpp
+++ b/include/boost/container/detail/flat_tree.hpp
@@ -549,7 +549,9 @@ class flat_tree
             pos = const_cast<const flat_tree&>(*this).priv_lower_bound(pos, ce, KeyOfValue()(val));
             //Check if already present
 			   if (pos != ce && !val_cmp(val, *pos)){
-               skips[unique_burst-1] += static_cast<size_type>(unique_burst > 0);
+               if(unique_burst > 0){
+                  ++skips[unique_burst-1];
+               }
                continue;
             }