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Editing: numeric.hpp
// -- 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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