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diff --git a/boost/bimap/support/lambda.hpp b/boost/bimap/support/lambda.hpp
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+// Boost.Bimap
+//
+// Copyright (c) 2006-2007 Matias Capeletto
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+/// \file support/lambda.hpp
+/// \brief Placeholders definition to help in bimap modify function
+
+#ifndef BOOST_BIMAP_SUPPORT_LAMBDA_HPP
+#define BOOST_BIMAP_SUPPORT_LAMBDA_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/config.hpp>
+
+#include <boost/lambda/lambda.hpp>
+
+namespace boost {
+namespace bimaps {
+
+namespace {
+
+/*
+boost::lambda::placeholder1_type & _first  = boost::lambda::_1;
+boost::lambda::placeholder2_type & _second = boost::lambda::_2;
+
+boost::lambda::placeholder1_type & _left   = boost::lambda::_1;
+boost::lambda::placeholder2_type & _right  = boost::lambda::_2;
+*/
+
+boost::lambda::placeholder1_type & _key  = boost::lambda::_1;
+boost::lambda::placeholder1_type & _data = boost::lambda::_1;
+
+}
+
+} // namespace bimaps
+} // namespace boost
+
+
+#endif // BOOST_BIMAP_SUPPORT_LAMBDA_HPP
+