ceph/src/boost/boost/parameter/aux_/pack/parameter_requirements.hpp

   1 // Copyright Daniel Wallin, David Abrahams 2005.
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_PARAMETER_AUX_PACK_PARAMETER_REQUIREMENTS_HPP
   7 #define BOOST_PARAMETER_AUX_PACK_PARAMETER_REQUIREMENTS_HPP
   8
   9 namespace boost { namespace parameter { namespace aux {
  10
  11     // Used to pass static information about parameter requirements through
  12     // the satisfies() overload set (below).  The matched function is never
  13     // invoked, but its type indicates whether a parameter matches at
  14     // compile-time.
  15     template <typename Keyword, typename Predicate, typename HasDefault>
  16     struct parameter_requirements
  17     {
  18         typedef Keyword keyword;
  19         typedef Predicate predicate;
  20         typedef HasDefault has_default;
  21     };
  22 }}} // namespace boost::parameter::aux
  23
  24 #endif  // include guard
  25