polynomial_horner1_4.hpp

来自「Boost provides free peer-reviewed portab」· HPP 代码 · 共 49 行

//  (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 Horners rule
#ifndef BOOST_MATH_TOOLS_POLY_EVAL_4_HPP
#define BOOST_MATH_TOOLS_POLY_EVAL_4_HPP

namespace boost{ namespace math{ namespace tools{ namespace detail{

template <class T, class V>
inline V evaluate_polynomial_c_imp(const T* a, const V&, const mpl::int_<0>*)
{
   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>*)
{
   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>*)
{
   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>*)
{
   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>*)
{
   return static_cast<V>(((a[3] * x + a[2]) * x + a[1]) * x + a[0]);
}


}}}} // namespaces

#endif // include guard