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 
26