120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
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// -- numeric.hpp -- Boost Lambda Library -----------------------------------
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// Copyright (C) 2002 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
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// Copyright (C) 2002 Gary Powell (gwpowell@hotmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// For more information, see http://www.boost.org
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#ifndef BOOST_LAMBDA_NUMERIC_HPP
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#define BOOST_LAMBDA_NUMERIC_HPP
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#include "boost/lambda/core.hpp"
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#include <numeric>
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namespace boost {
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namespace lambda {
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namespace ll {
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// accumulate ---------------------------------
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struct accumulate {
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template <class Args>
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struct sig {
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typedef typename boost::remove_const<
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typename boost::tuples::element<3, Args>::type
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>::type type;
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};
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template <class A, class B, class C>
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C
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operator()(A a, B b, C c) const
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{ return ::std::accumulate(a, b, c); }
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template <class A, class B, class C, class D>
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C
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operator()(A a, B b, C c, D d) const
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{ return ::std::accumulate(a, b, c, d); }
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};
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// inner_product ---------------------------------
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struct inner_product {
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template <class Args>
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struct sig {
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typedef typename boost::remove_const<
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typename boost::tuples::element<4, Args>::type
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>::type type;
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};
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template <class A, class B, class C, class D>
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D
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operator()(A a, B b, C c, D d) const
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{ return ::std::inner_product(a, b, c, d); }
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template <class A, class B, class C, class D, class E, class F>
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D
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operator()(A a, B b, C c, D d, E e, F f) const
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{ return ::std::inner_product(a, b, c, d, e, f); }
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};
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// partial_sum ---------------------------------
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struct partial_sum {
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template <class Args>
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struct sig {
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typedef typename boost::remove_const<
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typename boost::tuples::element<3, Args>::type
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>::type type;
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};
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template <class A, class B, class C>
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C
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operator()(A a, B b, C c) const
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{ return ::std::partial_sum(a, b, c); }
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template <class A, class B, class C, class D>
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C
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operator()(A a, B b, C c, D d) const
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{ return ::std::partial_sum(a, b, c, d); }
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};
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// adjacent_difference ---------------------------------
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struct adjacent_difference {
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template <class Args>
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struct sig {
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typedef typename boost::remove_const<
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typename boost::tuples::element<3, Args>::type
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>::type type;
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};
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template <class A, class B, class C>
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C
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operator()(A a, B b, C c) const
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{ return ::std::adjacent_difference(a, b, c); }
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template <class A, class B, class C, class D>
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C
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operator()(A a, B b, C c, D d) const
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{ return ::std::adjacent_difference(a, b, c, d); }
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};
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} // end of ll namespace
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} // end of lambda namespace
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} // end of boost namespace
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#endif
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