#ifndef BOOST_MPL_SWITCH_HPP_INCLUDED
#define BOOST_MPL_SWITCH_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2003-2004
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.
// $Source$
// $Date: 2004-09-02 11:41:37 -0400 (Thu, 02 Sep 2004) $
// $Revision: 24874 $
#include <boost/mpl/find_if.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/lambda.hpp>
#include <boost/mpl/apply.hpp>
#include <boost/mpl/always.hpp>
#include <boost/mpl/pair.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
namespace boost { namespace mpl {
template<
typename BOOST_MPL_AUX_NA_PARAM(Body)
, typename BOOST_MPL_AUX_NA_PARAM(T)
>
struct switch_
{
typedef typename find_if<Body,apply1<first<_1>,T> >::type iter_;
typedef typename deref<iter_>::type pair_;
typedef typename second<pair_>::type f_;
typedef typename apply1<f_,T>::type type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(2,switch_,(Body,T))
};
BOOST_MPL_AUX_NA_SPEC(2, switch_)
template<typename F> struct default_ : pair<always<true_>, F > {};
template<typename C,typename F> struct case_ : pair<C, F > {};
}}
#endif // BOOST_MPL_SWITCH_HPP_INCLUDED