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35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 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_ISNAN_HPP
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#define SPROUT_MATH_ISNAN_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/math/detail/config.hpp>
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#include <sprout/type_traits/enabler_if.hpp>
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namespace sprout {
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namespace math {
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namespace detail {
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template<
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typename FloatType,
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typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR bool
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isnan(FloatType x) {
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return !(x == x);
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}
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} // namespace detail
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using NS_SPROUT_MATH_DETAIL::isnan;
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} // namespace math
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using sprout::math::isnan;
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_ISNAN_HPP
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