ossrv_pub/boost_apis/boost/mpl/aux_/front_impl.hpp
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/mpl/aux_/front_impl.hpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,41 @@
+
+#ifndef BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
+#define BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Source: /cvsroot/boost/boost/boost/mpl/aux_/front_impl.hpp,v $
+// $Date: 2004/09/02 15:40:43 $
+// $Revision: 1.4 $
+
+#include <boost/mpl/front_fwd.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/aux_/traits_lambda_spec.hpp>
+
+namespace boost { namespace mpl {
+
+// default implementation; conrete sequences might override it by 
+// specializing either the 'front_impl' or the primary 'front' template
+
+template< typename Tag >
+struct front_impl
+{
+    template< typename Sequence > struct apply
+    {
+        typedef typename begin<Sequence>::type iter_;
+        typedef typename deref<iter_>::type type;
+    };
+};
+
+BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,front_impl)
+
+}}
+
+#endif // BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED