34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_FUNCTOR_HPP
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#define BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_FUNCTOR_HPP
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#include "matrix.hpp"
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#include <boost/hana/functional/flip.hpp>
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#include <boost/hana/functional/partial.hpp>
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#include <boost/hana/concept/functor.hpp>
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#include <utility>
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namespace boost { namespace hana {
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template <unsigned Rows, unsigned Columns>
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struct transform_impl<cppcon::Matrix<Rows, Columns>> {
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template <typename M, typename F>
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static constexpr decltype(auto) apply(M&& m, F&& f) {
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return unpack(
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transform(
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cppcon::rows(std::forward<M>(m)),
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partial(flip(transform), std::forward<F>(f))
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),
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cppcon::matrix
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);
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}
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};
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}}
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#endif // !BOOST_HANA_EXAMPLE_CPPCON_2014_MATRIX_FUNCTOR_HPP
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