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// -- numeric.hpp -- Boost Lambda Library -----------------------------------
// Copyright (C) 2002 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2002 Gary Powell (gwpowell@hotmail.com)
//
// Distributed under 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)
//
// For more information, see http://www.boost.org
#ifndef BOOST_LAMBDA_NUMERIC_HPP
#define BOOST_LAMBDA_NUMERIC_HPP
#include "boost/lambda/core.hpp"
#include <numeric>
namespace boost {
namespace lambda {
namespace ll {
// accumulate ---------------------------------
struct accumulate {
template <class Args>
struct sig {
typedef typename boost::remove_const<
typename boost::tuples::element<3, Args>::type
>::type type;
};
template <class A, class B, class C>
C
operator()(A a, B b, C c) const
{ return ::std::accumulate(a, b, c); }
template <class A, class B, class C, class D>
C
operator()(A a, B b, C c, D d) const
{ return ::std::accumulate(a, b, c, d); }
};
// inner_product ---------------------------------
struct inner_product {
template <class Args>
struct sig {
typedef typename boost::remove_const<
typename boost::tuples::element<4, Args>::type
>::type type;
};
template <class A, class B, class C, class D>
D
operator()(A a, B b, C c, D d) const
{ return ::std::inner_product(a, b, c, d); }
template <class A, class B, class C, class D, class E, class F>
D
operator()(A a, B b, C c, D d, E e, F f) const
{ return ::std::inner_product(a, b, c, d, e, f); }
};
// partial_sum ---------------------------------
struct partial_sum {
template <class Args>
struct sig {
typedef typename boost::remove_const<
typename boost::tuples::element<3, Args>::type
>::type type;
};
template <class A, class B, class C>
C
operator()(A a, B b, C c) const
{ return ::std::partial_sum(a, b, c); }
template <class A, class B, class C, class D>
C
operator()(A a, B b, C c, D d) const
{ return ::std::partial_sum(a, b, c, d); }
};
// adjacent_difference ---------------------------------
struct adjacent_difference {
template <class Args>
struct sig {
typedef typename boost::remove_const<
typename boost::tuples::element<3, Args>::type
>::type type;
};
template <class A, class B, class C>
C
operator()(A a, B b, C c) const
{ return ::std::adjacent_difference(a, b, c); }
template <class A, class B, class C, class D>
C
operator()(A a, B b, C c, D d) const
{ return ::std::adjacent_difference(a, b, c, d); }
};
} // end of ll namespace
} // end of lambda namespace
} // end of boost namespace
#endif
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