| 1 | // Copyright Louis Dionne 2013-2022 |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) |
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| 4 | |
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| 5 | #ifndef BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_COMPARABLE_HPP |
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| 6 | #define BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_COMPARABLE_HPP |
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| 7 | |
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| 8 | #include "matrix.hpp" |
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| 9 | |
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| 10 | #include <boost/hana/all.hpp> |
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| 11 | #include <boost/hana/bool.hpp> |
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| 12 | #include <boost/hana/equal.hpp> |
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| 13 | #include <boost/hana/eval_if.hpp> |
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| 14 | #include <boost/hana/zip_with.hpp> |
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| 15 | |
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| 16 | |
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| 17 | namespace boost { namespace hana { |
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| 18 | template <unsigned R1, unsigned C1, unsigned R2, unsigned C2> |
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| 19 | struct equal_impl<cppcon::Matrix<R1, C1>, cppcon::Matrix<R2, C2>> { |
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| 20 | template <typename M1, typename M2> |
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| 21 | static constexpr auto apply(M1 const& m1, M2 const& m2) { |
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| 22 | return eval_if(bool_c<R1 == R2 && C1 == C2>, |
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| 23 | [&](auto _) { |
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| 24 | return all(zip_with(_(equal), cppcon::rows(m1), |
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| 25 | cppcon::rows(m2))); |
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| 26 | }, |
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| 27 | [] { return false_c; } |
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| 28 | ); |
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| 29 | } |
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| 30 | }; |
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| 31 | }} |
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| 32 | |
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| 33 | #endif // !BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_COMPARABLE_HPP |
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| 34 | |
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