| /*-----------------------------------------------------------------------------+ |
| 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_TYPE_TRAITS_ADDS_INVERSELY_HPP_JOFA_100829 |
| #define BOOST_ICL_TYPE_TRAITS_ADDS_INVERSELY_HPP_JOFA_100829 |
| |
| #include <boost/icl/type_traits/has_inverse.hpp> |
| #include <boost/icl/functors.hpp> |
| |
| namespace boost{ namespace icl |
| { |
| |
| template<class Type, class Combiner> |
| struct adds_inversely |
| { |
| typedef adds_inversely type; |
| BOOST_STATIC_CONSTANT(bool, |
| value = (mpl::and_<has_inverse<Type>, is_negative<Combiner> >::value)); |
| }; |
| |
| }} // namespace boost icl |
| |
| #endif // BOOST_ICL_TYPE_TRAITS_ADDS_INVERSELY_HPP_JOFA_100829 |
| |
| |