| 1 | // Copyright Cromwell D. Enage 2018. |
|---|---|
| 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_IS_ARGUMENT_PACK_HPP |
| 7 | #define BOOST_PARAMETER_IS_ARGUMENT_PACK_HPP |
| 8 | |
| 9 | #include <boost/parameter/aux_/is_tagged_argument.hpp> |
| 10 | #include <boost/parameter/aux_/arg_list.hpp> |
| 11 | #include <boost/mpl/bool.hpp> |
| 12 | #include <boost/mpl/if.hpp> |
| 13 | #include <boost/type_traits/is_base_of.hpp> |
| 14 | |
| 15 | namespace boost { namespace parameter { |
| 16 | |
| 17 | template <typename T> |
| 18 | struct is_argument_pack |
| 19 | : ::boost::mpl::if_< |
| 20 | ::boost::is_base_of< ::boost::parameter::aux::empty_arg_list,T> |
| 21 | , ::boost::mpl::true_ |
| 22 | , ::boost::parameter::aux::is_tagged_argument<T> |
| 23 | >::type |
| 24 | { |
| 25 | }; |
| 26 | }} |
| 27 | |
| 28 | #endif // include guard |
| 29 | |
| 30 |