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52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#ifndef BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
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#define BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
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// Copyright 2015-2017 Peter Dimov.
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/mp11/detail/mp_fold.hpp>
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#include <boost/mp11/list.hpp>
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#include <boost/mp11/utility.hpp>
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namespace boost
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{
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namespace mp11
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{
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// mp_min_element<L, P>
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namespace detail
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{
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template<template<class...> class P> struct select_min
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{
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template<class T1, class T2> using fn = mp_if<P<T1, T2>, T1, T2>;
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};
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} // namespace detail
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template<class L, template<class...> class P> using mp_min_element = mp_fold_q<mp_rest<L>, mp_first<L>, detail::select_min<P>>;
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template<class L, class Q> using mp_min_element_q = mp_min_element<L, Q::template fn>;
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// mp_max_element<L, P>
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namespace detail
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{
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template<template<class...> class P> struct select_max
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{
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template<class T1, class T2> using fn = mp_if<P<T2, T1>, T1, T2>;
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};
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} // namespace detail
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template<class L, template<class...> class P> using mp_max_element = mp_fold_q<mp_rest<L>, mp_first<L>, detail::select_max<P>>;
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template<class L, class Q> using mp_max_element_q = mp_max_element<L, Q::template fn>;
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} // namespace mp11
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} // namespace boost
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#endif // #ifndef BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
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