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- // Copyright David Abrahams, Daniel Wallin 2003.
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_PARAMETER_AUX_PACK_AS_PARAMETER_REQUIREMENTS_HPP
- #define BOOST_PARAMETER_AUX_PACK_AS_PARAMETER_REQUIREMENTS_HPP
- #include <boost/parameter/aux_/pack/parameter_requirements.hpp>
- #include <boost/parameter/aux_/pack/tag_type.hpp>
- #include <boost/parameter/aux_/pack/predicate.hpp>
- #include <boost/parameter/deduced.hpp>
- namespace boost { namespace parameter { namespace aux {
- // Converts a ParameterSpec into a specialization of
- // parameter_requirements. We need to do this in order to get the
- // tag_type into the type in a way that can be conveniently matched
- // by a satisfies(...) member function in arg_list.
- template <typename ParameterSpec>
- struct as_parameter_requirements
- {
- typedef ::boost::parameter::aux::parameter_requirements<
- typename ::boost::parameter::aux::tag_type<ParameterSpec>::type
- , typename ::boost::parameter::aux::predicate<ParameterSpec>::type
- , ::boost::parameter::aux::has_default<ParameterSpec>
- > type;
- };
- }}} // namespace boost::parameter::aux
- #endif // include guard
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