hana/example/cppcon_2014/matrix/group.hpp
2017-01-07 14:14:18 -08:00

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// Copyright Louis Dionne 2013-2017
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#ifndef BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_GROUP_HPP
#define BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_GROUP_HPP
#include "matrix.hpp"
#include <boost/hana/concept/group.hpp>
#include <utility>
namespace boost { namespace hana {
template <unsigned R, unsigned C>
struct minus_impl<cppcon::Matrix<R, C>, cppcon::Matrix<R, C>> {
template <typename M1, typename M2>
static constexpr decltype(auto) apply(M1&& m1, M2&& m2) {
return element_wise(minus)(
std::forward<M1>(m1),
std::forward<M2>(m2)
);
}
};
}}
#endif // !BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_GROUP_HPP