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- // (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
- // Polynomial evaluation using second order Horners rule
- #ifndef BOOST_MATH_TOOLS_RAT_EVAL_9_HPP
- #define BOOST_MATH_TOOLS_RAT_EVAL_9_HPP
- namespace boost{ namespace math{ namespace tools{ namespace detail{
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T*, const U*, const V&, const std::integral_constant<int, 0>*) BOOST_MATH_NOEXCEPT(V)
- {
- return static_cast<V>(0);
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V&, const std::integral_constant<int, 1>*) BOOST_MATH_NOEXCEPT(V)
- {
- return static_cast<V>(a[0]) / static_cast<V>(b[0]);
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 2>*) BOOST_MATH_NOEXCEPT(V)
- {
- return static_cast<V>((a[1] * x + a[0]) / (b[1] * x + b[0]));
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 3>*) BOOST_MATH_NOEXCEPT(V)
- {
- return static_cast<V>(((a[2] * x + a[1]) * x + a[0]) / ((b[2] * x + b[1]) * x + b[0]));
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 4>*) BOOST_MATH_NOEXCEPT(V)
- {
- return static_cast<V>((((a[3] * x + a[2]) * x + a[1]) * x + a[0]) / (((b[3] * x + b[2]) * x + b[1]) * x + b[0]));
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 5>*) BOOST_MATH_NOEXCEPT(V)
- {
- if((-1 <= x) && (x <= 1))
- {
- V x2 = x * x;
- V t[4];
- t[0] = a[4] * x2 + a[2];
- t[1] = a[3] * x2 + a[1];
- t[2] = b[4] * x2 + b[2];
- t[3] = b[3] * x2 + b[1];
- t[0] *= x2;
- t[2] *= x2;
- t[0] += static_cast<V>(a[0]);
- t[2] += static_cast<V>(b[0]);
- t[1] *= x;
- t[3] *= x;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- else
- {
- V z = 1 / x;
- V z2 = 1 / (x * x);
- V t[4];
- t[0] = a[0] * z2 + a[2];
- t[1] = a[1] * z2 + a[3];
- t[2] = b[0] * z2 + b[2];
- t[3] = b[1] * z2 + b[3];
- t[0] *= z2;
- t[2] *= z2;
- t[0] += static_cast<V>(a[4]);
- t[2] += static_cast<V>(b[4]);
- t[1] *= z;
- t[3] *= z;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 6>*) BOOST_MATH_NOEXCEPT(V)
- {
- if((-1 <= x) && (x <= 1))
- {
- V x2 = x * x;
- V t[4];
- t[0] = a[5] * x2 + a[3];
- t[1] = a[4] * x2 + a[2];
- t[2] = b[5] * x2 + b[3];
- t[3] = b[4] * x2 + b[2];
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[1]);
- t[1] += static_cast<V>(a[0]);
- t[2] += static_cast<V>(b[1]);
- t[3] += static_cast<V>(b[0]);
- t[0] *= x;
- t[2] *= x;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- else
- {
- V z = 1 / x;
- V z2 = 1 / (x * x);
- V t[4];
- t[0] = a[0] * z2 + a[2];
- t[1] = a[1] * z2 + a[3];
- t[2] = b[0] * z2 + b[2];
- t[3] = b[1] * z2 + b[3];
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[4]);
- t[1] += static_cast<V>(a[5]);
- t[2] += static_cast<V>(b[4]);
- t[3] += static_cast<V>(b[5]);
- t[0] *= z;
- t[2] *= z;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 7>*) BOOST_MATH_NOEXCEPT(V)
- {
- if((-1 <= x) && (x <= 1))
- {
- V x2 = x * x;
- V t[4];
- t[0] = a[6] * x2 + a[4];
- t[1] = a[5] * x2 + a[3];
- t[2] = b[6] * x2 + b[4];
- t[3] = b[5] * x2 + b[3];
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[2]);
- t[1] += static_cast<V>(a[1]);
- t[2] += static_cast<V>(b[2]);
- t[3] += static_cast<V>(b[1]);
- t[0] *= x2;
- t[2] *= x2;
- t[0] += static_cast<V>(a[0]);
- t[2] += static_cast<V>(b[0]);
- t[1] *= x;
- t[3] *= x;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- else
- {
- V z = 1 / x;
- V z2 = 1 / (x * x);
- V t[4];
- t[0] = a[0] * z2 + a[2];
- t[1] = a[1] * z2 + a[3];
- t[2] = b[0] * z2 + b[2];
- t[3] = b[1] * z2 + b[3];
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[4]);
- t[1] += static_cast<V>(a[5]);
- t[2] += static_cast<V>(b[4]);
- t[3] += static_cast<V>(b[5]);
- t[0] *= z2;
- t[2] *= z2;
- t[0] += static_cast<V>(a[6]);
- t[2] += static_cast<V>(b[6]);
- t[1] *= z;
- t[3] *= z;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 8>*) BOOST_MATH_NOEXCEPT(V)
- {
- if((-1 <= x) && (x <= 1))
- {
- V x2 = x * x;
- V t[4];
- t[0] = a[7] * x2 + a[5];
- t[1] = a[6] * x2 + a[4];
- t[2] = b[7] * x2 + b[5];
- t[3] = b[6] * x2 + b[4];
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[3]);
- t[1] += static_cast<V>(a[2]);
- t[2] += static_cast<V>(b[3]);
- t[3] += static_cast<V>(b[2]);
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[1]);
- t[1] += static_cast<V>(a[0]);
- t[2] += static_cast<V>(b[1]);
- t[3] += static_cast<V>(b[0]);
- t[0] *= x;
- t[2] *= x;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- else
- {
- V z = 1 / x;
- V z2 = 1 / (x * x);
- V t[4];
- t[0] = a[0] * z2 + a[2];
- t[1] = a[1] * z2 + a[3];
- t[2] = b[0] * z2 + b[2];
- t[3] = b[1] * z2 + b[3];
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[4]);
- t[1] += static_cast<V>(a[5]);
- t[2] += static_cast<V>(b[4]);
- t[3] += static_cast<V>(b[5]);
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[6]);
- t[1] += static_cast<V>(a[7]);
- t[2] += static_cast<V>(b[6]);
- t[3] += static_cast<V>(b[7]);
- t[0] *= z;
- t[2] *= z;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- }
- template <class T, class U, class V>
- inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const std::integral_constant<int, 9>*) BOOST_MATH_NOEXCEPT(V)
- {
- if((-1 <= x) && (x <= 1))
- {
- V x2 = x * x;
- V t[4];
- t[0] = a[8] * x2 + a[6];
- t[1] = a[7] * x2 + a[5];
- t[2] = b[8] * x2 + b[6];
- t[3] = b[7] * x2 + b[5];
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[4]);
- t[1] += static_cast<V>(a[3]);
- t[2] += static_cast<V>(b[4]);
- t[3] += static_cast<V>(b[3]);
- t[0] *= x2;
- t[1] *= x2;
- t[2] *= x2;
- t[3] *= x2;
- t[0] += static_cast<V>(a[2]);
- t[1] += static_cast<V>(a[1]);
- t[2] += static_cast<V>(b[2]);
- t[3] += static_cast<V>(b[1]);
- t[0] *= x2;
- t[2] *= x2;
- t[0] += static_cast<V>(a[0]);
- t[2] += static_cast<V>(b[0]);
- t[1] *= x;
- t[3] *= x;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- else
- {
- V z = 1 / x;
- V z2 = 1 / (x * x);
- V t[4];
- t[0] = a[0] * z2 + a[2];
- t[1] = a[1] * z2 + a[3];
- t[2] = b[0] * z2 + b[2];
- t[3] = b[1] * z2 + b[3];
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[4]);
- t[1] += static_cast<V>(a[5]);
- t[2] += static_cast<V>(b[4]);
- t[3] += static_cast<V>(b[5]);
- t[0] *= z2;
- t[1] *= z2;
- t[2] *= z2;
- t[3] *= z2;
- t[0] += static_cast<V>(a[6]);
- t[1] += static_cast<V>(a[7]);
- t[2] += static_cast<V>(b[6]);
- t[3] += static_cast<V>(b[7]);
- t[0] *= z2;
- t[2] *= z2;
- t[0] += static_cast<V>(a[8]);
- t[2] += static_cast<V>(b[8]);
- t[1] *= z;
- t[3] *= z;
- return (t[0] + t[1]) / (t[2] + t[3]);
- }
- }
- }}}} // namespaces
- #endif // include guard
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