Added boost header

test/external/boost/icl/concept/interval_set_value.hpp

@@ -0,0 +1,33 @@
+/*-----------------------------------------------------------------------------+    
+Copyright (c) 2010-2010: Joachim Faulhaber
++------------------------------------------------------------------------------+
+   Distributed under the Boost Software License, Version 1.0.
+      (See accompanying file LICENCE.txt or copy at
+           http://www.boost.org/LICENSE_1_0.txt)
++-----------------------------------------------------------------------------*/
+#ifndef BOOST_ICL_CONCEPT_INTERVAL_SET_VALUE_HPP_JOFA_100924
+#define BOOST_ICL_CONCEPT_INTERVAL_SET_VALUE_HPP_JOFA_100924
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/icl/type_traits/is_interval_container.hpp>
+#include <boost/icl/concept/interval.hpp>
+
+namespace boost{ namespace icl
+{
+
+//==============================================================================
+//= AlgoUnifiers<Set>
+//==============================================================================
+template<class Type, class Iterator>
+inline typename enable_if<is_interval_set<Type>, typename Type::codomain_type>::type
+co_value(Iterator value_)
+{ 
+    typedef typename Type::codomain_type codomain_type;
+    return icl::is_empty(*value_)? codomain_type() : (*value_).lower(); 
+}
+
+}} // namespace boost icl
+
+#endif
+
+