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add tuples::apply

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bolero-MURAKAMI 2014-12-14 12:59:51 +09:00
parent a1f6d6ffc3
commit 5ccbc4e903
16 changed files with 280 additions and 52 deletions
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34
sprout/algorithm/abs_diff.hpp Normal file
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/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_ALGORITHM_ABS_DIFF_HPP
#define SPROUT_ALGORITHM_ABS_DIFF_HPP
#include <sprout/config.hpp>
namespace sprout {
//
// abs_diff
//
template<typename T>
inline SPROUT_CONSTEXPR T
abs_diff(T const& a, T const& b) {
return (a < b) ? b - a : a - b;
}
template<typename T, typename Compare>
inline SPROUT_CONSTEXPR T
abs_diff(T const& a, T const& b, Compare comp) {
return comp(a, b) ? b - a : a - b;
}
template<typename T, typename Compare, typename Difference>
inline SPROUT_CONSTEXPR T
abs_diff(T const& a, T const& b, Compare comp, Difference diff) {
return comp(a, b) ? diff(b, a) : diff(a, b);
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_ABS_DIFF_HPP