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3107abaa8a
* constexpr fma * Improve use of intrinsics for calculation * Changes to intrinsics and address sonarlint comments
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
// (C) Copyright Matt Borland 2022.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <cmath>
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#include <cfloat>
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#include <cstdint>
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#include <limits>
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#include <type_traits>
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#include <boost/math/ccmath/fma.hpp>
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#include <boost/math/ccmath/isnan.hpp>
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#include <boost/math/ccmath/isinf.hpp>
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#include <boost/math/ccmath/abs.hpp>
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#ifdef BOOST_HAS_FLOAT128
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#include <boost/multiprecision/float128.hpp>
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#endif
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#if !defined(BOOST_MATH_NO_CONSTEXPR_DETECTION) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P)
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template <typename T>
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constexpr void test()
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{
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// Error handling
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(std::numeric_limits<T>::infinity(), T(0), T(1))));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(T(0), std::numeric_limits<T>::infinity(), T(1))));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(std::numeric_limits<T>::infinity(), T(0), std::numeric_limits<T>::quiet_NaN())));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(T(0), std::numeric_limits<T>::infinity(), std::numeric_limits<T>::quiet_NaN())));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(std::numeric_limits<T>::quiet_NaN(), T(1), T(1))));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(T(1), std::numeric_limits<T>::quiet_NaN(), T(1))));
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static_assert(boost::math::ccmath::isnan(boost::math::ccmath::fma(T(1), T(1), std::numeric_limits<T>::quiet_NaN())));
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// Functionality
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static_assert(boost::math::ccmath::fma(T(1), T(2), T(3)) == T(5));
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static_assert(boost::math::ccmath::fma(T(2), T(3), T(1)) == T(7));
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// Correct promoted types
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if constexpr (!std::is_same_v<T, float>)
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{
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constexpr auto test_type = boost::math::ccmath::fma(T(1), 1.0, 1.0f);
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static_assert(std::is_same_v<T, std::remove_cv_t<decltype(test_type)>>);
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}
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else
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{
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constexpr auto test_type = boost::math::ccmath::fma(1.0f, 1, 1.0);
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static_assert(std::is_same_v<double, std::remove_cv_t<decltype(test_type)>>);
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}
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}
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int main()
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{
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test<float>();
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test<double>();
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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test<long double>();
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#endif
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#ifdef BOOST_HAS_FLOAT128
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test<boost::multiprecision::float128>();
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#endif
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return 0;
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}
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#else
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int main()
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{
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return 0;
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}
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#endif
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