| |
| // (C) Copyright Tobias Schwinger |
| // |
| // Use modification and distribution are subject to the boost Software License, |
| // Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt). |
| |
| //------------------------------------------------------------------------------ |
| |
| #ifndef BOOST_FT_DETAIL_TO_SEQUENCE_HPP_INCLUDED |
| #define BOOST_FT_DETAIL_TO_SEQUENCE_HPP_INCLUDED |
| |
| #include <ndnboost/mpl/eval_if.hpp> |
| #include <ndnboost/mpl/identity.hpp> |
| #include <ndnboost/mpl/is_sequence.hpp> |
| #include <ndnboost/mpl/placeholders.hpp> |
| #include <ndnboost/type_traits/add_reference.hpp> |
| |
| #include <ndnboost/function_types/is_callable_builtin.hpp> |
| |
| namespace ndnboost { namespace function_types { namespace detail { |
| |
| // wrap first arguments in components, if callable builtin type |
| template<typename T> |
| struct to_sequence |
| { |
| typedef typename |
| mpl::eval_if |
| < is_callable_builtin<T> |
| , to_sequence< components<T> > |
| , mpl::identity< T > |
| >::type |
| type; |
| }; |
| |
| #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
| // reduce template instantiations, if possible |
| template<typename T, typename U> |
| struct to_sequence< components<T,U> > |
| { |
| typedef typename components<T,U>::types type; |
| }; |
| #endif |
| |
| } } } // namespace ::ndnboost::function_types::detail |
| |
| #endif |
| |