iterator_tags.hpp 764 B

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  1. #ifndef BOOST_MPL_ITERATOR_TAG_HPP_INCLUDED
  2. #define BOOST_MPL_ITERATOR_TAG_HPP_INCLUDED
  3. // Copyright Aleksey Gurtovoy 2000-2004
  4. //
  5. // Distributed under the Boost Software License, Version 1.0.
  6. // (See accompanying file LICENSE_1_0.txt or copy at
  7. // http://www.boost.org/LICENSE_1_0.txt)
  8. //
  9. // See http://www.boost.org/libs/mpl for documentation.
  10. // $Id$
  11. // $Date$
  12. // $Revision$
  13. #include <boost/mpl/int.hpp>
  14. namespace boost { namespace mpl {
  15. struct forward_iterator_tag : int_<0> { typedef forward_iterator_tag type; };
  16. struct bidirectional_iterator_tag : int_<1> { typedef bidirectional_iterator_tag type; };
  17. struct random_access_iterator_tag : int_<2> { typedef random_access_iterator_tag type; };
  18. }}
  19. #endif // BOOST_MPL_ITERATOR_TAG_HPP_INCLUDED