1 

     2 #ifndef BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED

     3 #define BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED

     4 

     5 // Copyright Aleksey Gurtovoy 2002-2004

     6 //

     7 // Distributed under the Boost Software License, Version 1.0. 

     8 // (See accompanying file LICENSE_1_0.txt or copy at 

     9 // http://www.boost.org/LICENSE_1_0.txt)

    10 //

    11 // See http://www.boost.org/libs/mpl for documentation.

    12 

    13 // $Source: /cvsroot/boost/boost/boost/mpl/as_sequence.hpp,v $

    14 // $Date: 2004/09/02 15:40:41 $

    15 // $Revision: 1.4 $

    16 

    17 #include <boost/mpl/is_sequence.hpp>

    18 #include <boost/mpl/single_view.hpp>

    19 #include <boost/mpl/if.hpp>

    20 #include <boost/mpl/aux_/na_spec.hpp>

    21 #include <boost/mpl/aux_/lambda_support.hpp>

    22 

    23 namespace boost { namespace mpl {

    24 

    25 template<

    26       typename BOOST_MPL_AUX_NA_PARAM(T)

    27     >

    28 struct as_sequence

    29     : if_< is_sequence<T>, T, single_view<T> >

    30 {

    31     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,as_sequence,(T))

    32 };

    33 

    34 BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, as_sequence)

    35 

    36 }}

    37 

    38 #endif // BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED