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35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
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/*=============================================================================
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Copyright (c) 2011-2014 Bolero MURAKAMI
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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_ABS_DIFF_HPP
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#define SPROUT_ALGORITHM_ABS_DIFF_HPP
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#include <sprout/config.hpp>
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namespace sprout {
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//
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// abs_diff
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//
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template<typename T>
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inline SPROUT_CONSTEXPR T
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abs_diff(T const& a, T const& b) {
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return (a < b) ? b - a : a - b;
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}
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template<typename T, typename Compare>
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inline SPROUT_CONSTEXPR T
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abs_diff(T const& a, T const& b, Compare comp) {
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return comp(a, b) ? b - a : a - b;
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}
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template<typename T, typename Compare, typename Difference>
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inline SPROUT_CONSTEXPR T
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abs_diff(T const& a, T const& b, Compare comp, Difference diff) {
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return comp(a, b) ? diff(b, a) : diff(a, b);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_ABS_DIFF_HPP
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