Chris@16: /*-----------------------------------------------------------------------------+    
Chris@16: Copyright (c) 2010-2010: Joachim Faulhaber
Chris@16: +------------------------------------------------------------------------------+
Chris@16:    Distributed under the Boost Software License, Version 1.0.
Chris@16:       (See accompanying file LICENCE.txt or copy at
Chris@16:            http://www.boost.org/LICENSE_1_0.txt)
Chris@16: +-----------------------------------------------------------------------------*/
Chris@16: #ifndef BOOST_ICL_CONCEPT_COMPARABLE_HPP_JOFA_100921
Chris@16: #define BOOST_ICL_CONCEPT_COMPARABLE_HPP_JOFA_100921
Chris@16: 
Chris@16: #include <boost/utility/enable_if.hpp>
Chris@16: #include <boost/icl/type_traits/is_icl_container.hpp>
Chris@16: 
Chris@16: namespace boost{ namespace icl
Chris@16: {
Chris@16: 
Chris@16: //==============================================================================
Chris@16: //= Equivalences and Orderings<Comparable>
Chris@16: //==============================================================================
Chris@16: template<class Type>
Chris@16: inline typename enable_if<is_icl_container<Type>, bool>::type
Chris@16: operator != (const Type& left, const Type& right)
Chris@16: { return !(left == right); }
Chris@16: 
Chris@16: template<class Type>
Chris@16: inline typename enable_if<is_icl_container<Type>, bool>::type
Chris@16: operator > (const Type& left, const Type& right)
Chris@16: { return right < left; }
Chris@16: 
Chris@16: /** Partial ordering which is induced by Compare */
Chris@16: template<class Type>
Chris@16: inline typename enable_if<is_icl_container<Type>, bool>::type
Chris@16: operator <= (const Type& left, const Type& right)
Chris@16: { return !(left > right); }
Chris@16: 
Chris@16: template<class Type>
Chris@16: inline typename enable_if<is_icl_container<Type>, bool>::type
Chris@16: operator >= (const Type& left, const Type& right)
Chris@16: { return !(left < right); }
Chris@16: 
Chris@16: }} // namespace boost icl
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: