38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
/*!
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@file
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Defines `boost::hana::reverse_fold`.
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@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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*/
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#ifndef BOOST_HANA_REVERSE_FOLD_HPP
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#define BOOST_HANA_REVERSE_FOLD_HPP
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#include <boost/hana/fwd/reverse_fold.hpp>
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#include <boost/hana/config.hpp>
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#include <boost/hana/fold_right.hpp>
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#include <boost/hana/functional/flip.hpp>
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namespace boost { namespace hana {
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//! @cond
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template <typename Xs, typename S, typename F>
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constexpr decltype(auto) reverse_fold_t::operator()(Xs&& xs, S&& s, F&& f) const {
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return hana::fold_right(static_cast<Xs&&>(xs),
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static_cast<S&&>(s),
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hana::flip(static_cast<F&&>(f)));
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}
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template <typename Xs, typename F>
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constexpr decltype(auto) reverse_fold_t::operator()(Xs&& xs, F&& f) const {
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return hana::fold_right(static_cast<Xs&&>(xs),
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hana::flip(static_cast<F&&>(f)));
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}
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//! @endcond
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}} // end namespace boost::hana
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#endif // !BOOST_HANA_REVERSE_FOLD_HPP
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