has_apply.hpp 767 B

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  1. #ifndef BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
  2. #define BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
  3. // Copyright Aleksey Gurtovoy 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/has_xxx.hpp>
  14. #include <boost/mpl/aux_/config/has_apply.hpp>
  15. namespace boost { namespace mpl { namespace aux {
  16. #if !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
  17. BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_apply, apply, false)
  18. #else
  19. template< typename T, typename fallback_ = false_ >
  20. struct has_apply
  21. : fallback_
  22. {
  23. };
  24. #endif
  25. }}}
  26. #endif // BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED