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Diffstat (limited to 'src/third_party/boost-1.60.0/boost/math/tools/detail/polynomial_horner3_5.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/math/tools/detail/polynomial_horner3_5.hpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/math/tools/detail/polynomial_horner3_5.hpp b/src/third_party/boost-1.60.0/boost/math/tools/detail/polynomial_horner3_5.hpp new file mode 100644 index 00000000000..12e639cef3e --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/math/tools/detail/polynomial_horner3_5.hpp @@ -0,0 +1,61 @@ +// (C) Copyright John Maddock 2007. +// Use, modification and distribution are subject to 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) +// +// This file is machine generated, do not edit by hand + +// Unrolled polynomial evaluation using second order Horners rule +#ifndef BOOST_MATH_TOOLS_POLY_EVAL_5_HPP +#define BOOST_MATH_TOOLS_POLY_EVAL_5_HPP + +namespace boost{ namespace math{ namespace tools{ namespace detail{ + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T*, const V&, const mpl::int_<0>*) BOOST_MATH_NOEXCEPT(V) +{ + return static_cast<V>(0); +} + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T* a, const V&, const mpl::int_<1>*) BOOST_MATH_NOEXCEPT(V) +{ + return static_cast<V>(a[0]); +} + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<2>*) BOOST_MATH_NOEXCEPT(V) +{ + return static_cast<V>(a[1] * x + a[0]); +} + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<3>*) BOOST_MATH_NOEXCEPT(V) +{ + return static_cast<V>((a[2] * x + a[1]) * x + a[0]); +} + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<4>*) BOOST_MATH_NOEXCEPT(V) +{ + return static_cast<V>(((a[3] * x + a[2]) * x + a[1]) * x + a[0]); +} + +template <class T, class V> +inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<5>*) BOOST_MATH_NOEXCEPT(V) +{ + V x2 = x * x; + V t[2]; + t[0] = static_cast<V>(a[4] * x2 + a[2]); + t[1] = static_cast<V>(a[3] * x2 + a[1]); + t[0] *= x2; + t[0] += static_cast<V>(a[0]); + t[1] *= x; + return t[0] + t[1]; +} + + +}}}} // namespaces + +#endif // include guard + |