]> git.proxmox.com Git - ceph.git/blame - ceph/src/boost/libs/math/include/boost/math/tools/detail/rational_horner1_3.hpp
bump version to 12.2.2-pve1
[ceph.git] / ceph / src / boost / libs / math / include / boost / math / tools / detail / rational_horner1_3.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// Polynomial evaluation using Horners rule
9#ifndef BOOST_MATH_TOOLS_POLY_RAT_3_HPP
10#define BOOST_MATH_TOOLS_POLY_RAT_3_HPP
11
12namespace boost{ namespace math{ namespace tools{ namespace detail{
13
14template <class T, class U, class V>
15inline V evaluate_rational_c_imp(const T*, const U*, const V&, const mpl::int_<0>*) BOOST_MATH_NOEXCEPT(V)
16{
17 return static_cast<V>(0);
18}
19
20template <class T, class U, class V>
21inline V evaluate_rational_c_imp(const T* a, const U* b, const V&, const mpl::int_<1>*) BOOST_MATH_NOEXCEPT(V)
22{
23 return static_cast<V>(a[0]) / static_cast<V>(b[0]);
24}
25
26template <class T, class U, class V>
27inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<2>*) BOOST_MATH_NOEXCEPT(V)
28{
29 if(x <= 1)
30 return static_cast<V>((a[1] * x + a[0]) / (b[1] * x + b[0]));
31 else
32 {
33 V z = 1 / x;
34 return static_cast<V>((a[0] * z + a[1]) / (b[0] * z + b[1]));
35 }
36}
37
38template <class T, class U, class V>
39inline V evaluate_rational_c_imp(const T* a, const U* b, const V& x, const mpl::int_<3>*) BOOST_MATH_NOEXCEPT(V)
40{
41 if(x <= 1)
42 return static_cast<V>(((a[2] * x + a[1]) * x + a[0]) / ((b[2] * x + b[1]) * x + b[0]));
43 else
44 {
45 V z = 1 / x;
46 return static_cast<V>(((a[0] * z + a[1]) * z + a[2]) / ((b[0] * z + b[1]) * z + b[2]));
47 }
48}
49
50
51}}}} // namespaces
52
53#endif // include guard
54