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is_argument_pack.hpp
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// Copyright Cromwell D. Enage 2018. // 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_IS_ARGUMENT_PACK_HPP #define BOOST_PARAMETER_IS_ARGUMENT_PACK_HPP #include <boost/parameter/aux_/is_tagged_argument.hpp> #include <boost/parameter/aux_/arg_list.hpp> #include <boost/mpl/bool.hpp> #include <boost/mpl/if.hpp> #include <boost/type_traits/is_base_of.hpp> namespace boost { namespace parameter { template <typename T> struct is_argument_pack : ::boost::mpl::if_< ::boost::is_base_of< ::boost::parameter::aux::empty_arg_list,T> , ::boost::mpl::true_ , ::boost::parameter::aux::is_tagged_argument<T> >::type { }; }} #endif // include guard