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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_COMPARABLE_HPP
- #define BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_COMPARABLE_HPP
- #include "matrix.hpp"
- #include <boost/hana/all.hpp>
- #include <boost/hana/bool.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/eval_if.hpp>
- #include <boost/hana/zip_with.hpp>
- namespace boost { namespace hana {
- template <unsigned R1, unsigned C1, unsigned R2, unsigned C2>
- struct equal_impl<cppcon::Matrix<R1, C1>, cppcon::Matrix<R2, C2>> {
- template <typename M1, typename M2>
- static constexpr auto apply(M1 const& m1, M2 const& m2) {
- return eval_if(bool_c<R1 == R2 && C1 == C2>,
- [&](auto _) {
- return all(zip_with(_(equal), cppcon::rows(m1),
- cppcon::rows(m2)));
- },
- [] { return false_c; }
- );
- }
- };
- }}
- #endif // !BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_COMPARABLE_HPP
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