ceph/src/boost/libs/mpl/include/boost/mpl/empty.hpp

   1
   2 #ifndef BOOST_MPL_EMPTY_HPP_INCLUDED
   3 #define BOOST_MPL_EMPTY_HPP_INCLUDED
   4
   5 // Copyright Aleksey Gurtovoy 2000-2004
   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 // $Id$
  14 // $Date$
  15 // $Revision$
  16
  17 #include <boost/mpl/empty_fwd.hpp>
  18 #include <boost/mpl/sequence_tag.hpp>
  19 #include <boost/mpl/aux_/empty_impl.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(Sequence)
  27     >
  28 struct empty
  29     : empty_impl< typename sequence_tag<Sequence>::type >
  30         ::template apply< Sequence >
  31 {
  32     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,empty,(Sequence))
  33 };
  34
  35 BOOST_MPL_AUX_NA_SPEC(1, empty)
  36
  37 }}
  38
  39 #endif // BOOST_MPL_EMPTY_HPP_INCLUDED