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54 lines
2 KiB
C++
54 lines
2 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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Copyright (C) 2011 RiSK (sscrisk)
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_ALGORITHM_MINMAX_HPP
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#define SPROUT_ALGORITHM_MINMAX_HPP
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#include <initializer_list>
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#include <sprout/config.hpp>
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#include <sprout/utility/pair/pair.hpp>
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#include <sprout/algorithm/minmax_element.hpp>
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#include <sprout/iterator/ptr_index_iterator.hpp>
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#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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// 25.4.7 Minimum and maximum
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template<typename T, typename Compare>
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inline SPROUT_CONSTEXPR sprout::pair<T const&, T const&>
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minmax(T const& a, T const& b, Compare comp) {
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return comp(b, a) ? sprout::pair<T const&, T const&>(b, a) : sprout::pair<T const&, T const&>(a, b);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR sprout::pair<T const&, T const&>
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minmax(T const& a, T const& b) {
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return sprout::minmax(a, b, NS_SSCRISK_CEL_OR_SPROUT::less<T>());
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}
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namespace detail {
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template<typename T, typename Iterator>
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inline SPROUT_CONSTEXPR sprout::pair<T, T>
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minmax_impl(sprout::pair<Iterator, Iterator> const& p) {
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return sprout::pair<T, T>(*p.first, *p.second);
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}
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} // namespace detail
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template<typename T, typename Compare>
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inline SPROUT_INITIALIZER_LIST_CONSTEXPR sprout::pair<T, T>
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minmax(std::initializer_list<T> t, Compare comp) {
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return sprout::detail::minmax_impl<T>(sprout::minmax_element(sprout::ptr_index(t.begin(), 0), sprout::ptr_index(t.begin(), t.size()), comp));
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}
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template<typename T>
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inline SPROUT_INITIALIZER_LIST_CONSTEXPR sprout::pair<T, T>
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minmax(std::initializer_list<T> t) {
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return sprout::minmax(t, NS_SSCRISK_CEL_OR_SPROUT::less<T>());
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_MINMAX_HPP
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