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38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2019 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_CLAMP_HPP
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#define SPROUT_ALGORITHM_CLAMP_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/type_traits/identity.hpp>
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#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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//
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// clamp
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//
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template<typename T, typename Compare>
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inline SPROUT_CONSTEXPR T const&
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clamp(T const& value, typename sprout::identity<T>::type const& low, typename sprout::identity<T>::type const& high, Compare comp) {
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return comp(value, low) ? low
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: comp(high, value) ? high
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: value
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;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR T const&
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clamp(T const& value, typename sprout::identity<T>::type const& low, typename sprout::identity<T>::type const& high) {
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return sprout::clamp(
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value, low, high,
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NS_SSCRISK_CEL_OR_SPROUT::less<T>()
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);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_CLAMP_HPP
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