Chris@16: 
Chris@16: #ifndef BOOST_MPL_O1_SIZE_HPP_INCLUDED
Chris@16: #define BOOST_MPL_O1_SIZE_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2000-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/O1_size_fwd.hpp>
Chris@16: #include <boost/mpl/sequence_tag.hpp>
Chris@16: #include <boost/mpl/aux_/O1_size_impl.hpp>
Chris@16: #include <boost/mpl/aux_/na_spec.hpp>
Chris@16: #include <boost/mpl/aux_/lambda_support.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: // returns sequence size if it's an O(1) operation; otherwise returns -1
Chris@16: template<
Chris@16:       typename BOOST_MPL_AUX_NA_PARAM(Sequence)
Chris@16:     >
Chris@16: struct O1_size
Chris@16:     : O1_size_impl< typename sequence_tag<Sequence>::type >
Chris@16:         ::template apply< Sequence >
Chris@16: {
Chris@16:     BOOST_MPL_AUX_LAMBDA_SUPPORT(1, O1_size, (Sequence))
Chris@16: };
Chris@16: 
Chris@16: BOOST_MPL_AUX_NA_SPEC(1, O1_size)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_O1_SIZE_HPP_INCLUDED