///////////////////////////////////////////////////////////////////////////////

// foreach.hpp header file

//

// 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)

// See http://www.boost.org/libs/foreach for documentation

//

// Credits:

// Kazutoshi Satoda: for suggesting the need for a _fwd header for foreach's

//                      customization points.

#ifndef BOOST_FOREACH_FWD_HPP

#define BOOST_FOREACH_FWD_HPP

// This must be at global scope, hence the uglified name

enum boost_foreach_argument_dependent_lookup_hack

{

    boost_foreach_argument_dependent_lookup_hack_value

};

namespace boost

{

namespace foreach

{

    ///////////////////////////////////////////////////////////////////////////////

    // boost::foreach::tag

    //

    typedef boost_foreach_argument_dependent_lookup_hack tag;

    ///////////////////////////////////////////////////////////////////////////////

    // boost::foreach::is_lightweight_proxy

    //   Specialize this for user-defined collection types if they are inexpensive to copy.

    //   This tells BOOST_FOREACH it can avoid the rvalue/lvalue detection stuff.

    template<typename T>

    struct is_lightweight_proxy;

    ///////////////////////////////////////////////////////////////////////////////

    // boost::foreach::is_noncopyable

    //   Specialize this for user-defined collection types if they cannot be copied.

    //   This also tells BOOST_FOREACH to avoid the rvalue/lvalue detection stuff.

    template<typename T>

    struct is_noncopyable;

} // namespace foreach

} // namespace boost

#endif