#ifndef BOOST_MPL_HAS_KEY_HPP_INCLUDED | |
#define BOOST_MPL_HAS_KEY_HPP_INCLUDED | |
// Copyright Aleksey Gurtovoy 2003-2004 | |
// Copyright David Abrahams 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. | |
// $Id: has_key.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#include <boost/mpl/has_key_fwd.hpp> | |
#include <boost/mpl/sequence_tag.hpp> | |
#include <boost/mpl/aux_/has_key_impl.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(AssociativeSequence) | |
, typename BOOST_MPL_AUX_NA_PARAM(Key) | |
> | |
struct has_key | |
: has_key_impl< typename sequence_tag<AssociativeSequence>::type > | |
::template apply<AssociativeSequence,Key> | |
{ | |
BOOST_MPL_AUX_LAMBDA_SUPPORT(2,has_key,(AssociativeSequence,Key)) | |
}; | |
BOOST_MPL_AUX_NA_SPEC(2, has_key) | |
}} | |
#endif // BOOST_MPL_HAS_KEY_HPP_INCLUDED |