FM / fusion

/usr/include/boost/proto/functional/fusion/

/usr/include/boost/proto/functional/fusion

Name	Size	Mode	Actions
at.hpp	1836	0644	edit dl rm
pop_back.hpp	1946	0644	edit dl rm
pop_front.hpp	2255	0644	edit dl rm
push_back.hpp	1709	0644	edit dl rm
push_front.hpp	1720	0644	edit dl rm
reverse.hpp	1921	0644	edit dl rm

Edit: /usr/include/boost/proto/functional/fusion/pop_front.hpp (2255B)

#ifndef BOOST_PROTO_FUNCTIONAL_FUSION_POP_FRONT_HPP_EAN_11_27_2010
#define BOOST_PROTO_FUNCTIONAL_FUSION_POP_FRONT_HPP_EAN_11_27_2010

#include <boost/fusion/include/begin.hpp>
#include <boost/fusion/include/end.hpp>
#include <boost/fusion/include/next.hpp>
#include <boost/fusion/include/pop_front.hpp>
#include <boost/proto/proto_fwd.hpp>

namespace boost { namespace proto { namespace functional
{
    /// \brief A PolymorphicFunctionObject type that invokes the
    /// \c fusion::pop_front() algorithm on its argument.
    ///
    /// A PolymorphicFunctionObject type that invokes the
    /// \c fusion::pop_front() algorithm on its argument. This is
    /// useful for defining a CallableTransform like \c pop_front(_)
    /// which removes the first child from a Proto expression node.
    /// Such a transform might be used as the first argument to the
    /// \c proto::fold\<\> transform; that is, fold all but
    /// the first child.
    struct pop_front
    {
        BOOST_PROTO_CALLABLE()

template<typename Sig>
        struct result;

template<typename This, typename Seq>
        struct result<This(Seq)>
          : result<This(Seq const &)>
        {};

template<typename This, typename Seq>
        struct result<This(Seq &)>
          : fusion::result_of::pop_front<Seq>
        {};

template<typename Seq>
        typename fusion::result_of::pop_front<Seq>::type
        operator ()(Seq &seq) const
        {
            // Work around a const-correctness issue in Fusion
            typedef typename fusion::result_of::pop_front<Seq>::type result_type;
            return result_type(fusion::next(fusion::begin(seq)), fusion::end(seq));
        }

template<typename Seq>
        typename fusion::result_of::pop_front<Seq const>::type
        operator ()(Seq const &seq) const
        {
            return fusion::pop_front(seq);
        }
    };
}}}

#endif

/////////////////////////////////////////////////////////////////////////////// /// \file pop_front.hpp /// Proto callables Fusion pop_front // // Copyright 2010 Eric Niebler. 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) #ifndef BOOST_PROTO_FUNCTIONAL_FUSION_POP_FRONT_HPP_EAN_11_27_2010 #define BOOST_PROTO_FUNCTIONAL_FUSION_POP_FRONT_HPP_EAN_11_27_2010 #include #include #include #include #include namespace boost { namespace proto { namespace functional { /// \brief A PolymorphicFunctionObject type that invokes the /// \c fusion::pop_front() algorithm on its argument. /// /// A PolymorphicFunctionObject type that invokes the /// \c fusion::pop_front() algorithm on its argument. This is /// useful for defining a CallableTransform like \c pop_front(_) /// which removes the first child from a Proto expression node. /// Such a transform might be used as the first argument to the /// \c proto::fold\<\> transform; that is, fold all but /// the first child. struct pop_front { BOOST_PROTO_CALLABLE() template struct result; template struct result : result {}; template struct result : fusion::result_of::pop_front {}; template typename fusion::result_of::pop_front::type operator ()(Seq &seq) const { // Work around a const-correctness issue in Fusion typedef typename fusion::result_of::pop_front::type result_type; return result_type(fusion::next(fusion::begin(seq)), fusion::end(seq)); } template typename fusion::result_of::pop_front::type operator ()(Seq const &seq) const { return fusion::pop_front(seq); } }; }}} #endif