]> git.proxmox.com Git - ceph.git/blame - ceph/src/boost/libs/math/include/boost/math/tools/detail/polynomial_horner3_6.hpp
bump version to 12.2.2-pve1
[ceph.git] / ceph / src / boost / libs / math / include / boost / math / tools / detail / polynomial_horner3_6.hpp
CommitLineData
7c673cae
FG
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
12namespace boost{ namespace math{ namespace tools{ namespace detail{
13
14template <class T, class V>
15inline 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
20template <class T, class V>
21inline 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
26template <class T, class V>
27inline 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
32template <class T, class V>
33inline 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
38template <class T, class V>
39inline 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
44template <class T, class V>
45inline 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
57template <class T, class V>
58inline 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