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Contents
#ifndef BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED
#define BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2004
//
// 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.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/empty_fwd.hpp>
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/aux_/traits_lambda_spec.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost { namespace mpl {
// default implementation; conrete sequences might override it by
// specializing either the 'empty_impl' or the primary 'empty' template
template< typename Tag >
struct empty_impl
{
template< typename Sequence > struct apply
: is_same<
typename begin<Sequence>::type
, typename end<Sequence>::type
>
{
};
};
BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,empty_impl)
}}
#endif // BOOST_MPL_AUX_EMPTY_IMPL_HPP_INCLUDED
Version data entries
58 entries across 58 versions & 3 rubygems