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39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
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/*=============================================================================
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Copyright (c) 2011-2016 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_MATH_QUATERNION_DETAIL_ABS_MAX_HPP
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#define SPROUT_MATH_QUATERNION_DETAIL_ABS_MAX_HPP
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#include <sprout/config.hpp>
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#include <sprout/workaround/std/cstddef.hpp>
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#include <sprout/array/array.hpp>
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#include <sprout/math/abs.hpp>
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#include <sprout/range/algorithm/max_element.hpp>
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namespace sprout {
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namespace math {
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namespace detail {
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template<typename T>
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class abs_less {
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public:
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SPROUT_CONSTEXPR T
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operator()(T const& lhs, T const& rhs) const {
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return sprout::math::abs(lhs) < sprout::math::abs(rhs);
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}
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};
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template<typename T, std::size_t N>
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SPROUT_CONSTEXPR T
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abs_max(sprout::array<T, N> const& c) {
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return sprout::math::abs(*sprout::range::max_element(c, sprout::math::detail::abs_less<T>()));
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}
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} // namespace detail
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} // namespace math
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_QUATERNION_DETAIL_ABS_MAX_HPP
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