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1 | // (C) Copyright John Maddock 2007. |
2 | // Use, modification and distribution are subject to the | |
3 | // Boost Software License, Version 1.0. (See accompanying file | |
4 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | // | |
6 | // This file is machine generated, do not edit by hand | |
7 | ||
8 | // Unrolled polynomial evaluation using second order Horners rule | |
9 | #ifndef BOOST_MATH_TOOLS_POLY_EVAL_6_HPP | |
10 | #define BOOST_MATH_TOOLS_POLY_EVAL_6_HPP | |
11 | ||
12 | namespace boost{ namespace math{ namespace tools{ namespace detail{ | |
13 | ||
14 | template <class T, class V> | |
15 | inline V evaluate_polynomial_c_imp(const T*, const V&, const mpl::int_<0>*) BOOST_MATH_NOEXCEPT(V) | |
16 | { | |
17 | return static_cast<V>(0); | |
18 | } | |
19 | ||
20 | template <class T, class V> | |
21 | inline V evaluate_polynomial_c_imp(const T* a, const V&, const mpl::int_<1>*) BOOST_MATH_NOEXCEPT(V) | |
22 | { | |
23 | return static_cast<V>(a[0]); | |
24 | } | |
25 | ||
26 | template <class T, class V> | |
27 | inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<2>*) BOOST_MATH_NOEXCEPT(V) | |
28 | { | |
29 | return static_cast<V>(a[1] * x + a[0]); | |
30 | } | |
31 | ||
32 | template <class T, class V> | |
33 | inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<3>*) BOOST_MATH_NOEXCEPT(V) | |
34 | { | |
35 | return static_cast<V>((a[2] * x + a[1]) * x + a[0]); | |
36 | } | |
37 | ||
38 | template <class T, class V> | |
39 | inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<4>*) BOOST_MATH_NOEXCEPT(V) | |
40 | { | |
41 | return static_cast<V>(((a[3] * x + a[2]) * x + a[1]) * x + a[0]); | |
42 | } | |
43 | ||
44 | template <class T, class V> | |
45 | inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<5>*) BOOST_MATH_NOEXCEPT(V) | |
46 | { | |
47 | V x2 = x * x; | |
48 | V t[2]; | |
49 | t[0] = static_cast<V>(a[4] * x2 + a[2]); | |
50 | t[1] = static_cast<V>(a[3] * x2 + a[1]); | |
51 | t[0] *= x2; | |
52 | t[0] += static_cast<V>(a[0]); | |
53 | t[1] *= x; | |
54 | return t[0] + t[1]; | |
55 | } | |
56 | ||
57 | template <class T, class V> | |
58 | inline V evaluate_polynomial_c_imp(const T* a, const V& x, const mpl::int_<6>*) BOOST_MATH_NOEXCEPT(V) | |
59 | { | |
60 | V x2 = x * x; | |
61 | V t[2]; | |
62 | t[0] = a[5] * x2 + a[3]; | |
63 | t[1] = a[4] * x2 + a[2]; | |
64 | t[0] *= x2; | |
65 | t[1] *= x2; | |
66 | t[0] += static_cast<V>(a[1]); | |
67 | t[1] += static_cast<V>(a[0]); | |
68 | t[0] *= x; | |
69 | return t[0] + t[1]; | |
70 | } | |
71 | ||
72 | ||
73 | }}}} // namespaces | |
74 | ||
75 | #endif // include guard | |
76 |