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67 lines
1.7 KiB
67 lines
1.7 KiB
/*
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ffuzzy++ Helper Libraries
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minmax.hpp
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C++14-compatible minimum / maximum library
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Copyright (C) 2015 Tsukasa OI <floss_ssdeep@irq.a4lg.com>
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Permission to use, copy, modify, and/or distribute this software for
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any purpose with or without fee is hereby granted, provided that the
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above copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef FFUZZYPP_UTILS_MINMAX_HPP
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#define FFUZZYPP_UTILS_MINMAX_HPP
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/*
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std::min and std::max in C++11 are not marked constexpr.
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On the other hand, C++14's std::min and std::max are marked constexpr.
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This library implements constexpr min and max in C++11
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(but compatible with C++14).
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However, we won't implement initializer_list variant of
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min and max since we aren't using it.
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*/
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namespace ffuzzy {
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namespace minmax {
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template <class T>
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inline constexpr const T& min(const T& a, const T& b)
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{
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return b < a ? b : a;
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}
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template <class T, class Compare>
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inline constexpr const T& min(const T& a, const T& b, Compare comp)
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{
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return comp(b, a) ? b : a;
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}
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template <class T>
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inline constexpr const T& max(const T& a, const T& b)
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{
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return a < b ? b : a;
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}
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template <class T, class Compare>
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inline constexpr const T& max(const T& a, const T& b, Compare comp)
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{
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return comp(a, b) ? b : a;
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}
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}}
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#endif
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