| 1 | #ifndef BOOST_MP11_DETAIL_MP_IS_VALUE_LIST_HPP_INCLUDED |
| 2 | #define BOOST_MP11_DETAIL_MP_IS_VALUE_LIST_HPP_INCLUDED |
| 3 | |
| 4 | // Copyright 2023 Peter Dimov |
| 5 | // Distributed under the Boost Software License, Version 1.0. |
| 6 | // https://www.boost.org/LICENSE_1_0.txt |
| 7 | |
| 8 | #include <boost/mp11/integral.hpp> |
| 9 | #include <boost/mp11/detail/config.hpp> |
| 10 | |
| 11 | namespace boost |
| 12 | { |
| 13 | namespace mp11 |
| 14 | { |
| 15 | |
| 16 | // mp_is_value_list<L> |
| 17 | namespace detail |
| 18 | { |
| 19 | |
| 20 | template<class L> struct mp_is_value_list_impl |
| 21 | { |
| 22 | using type = mp_false; |
| 23 | }; |
| 24 | |
| 25 | #if defined(BOOST_MP11_HAS_TEMPLATE_AUTO) |
| 26 | |
| 27 | template<template<auto...> class L, auto... A> struct mp_is_value_list_impl<L<A...>> |
| 28 | { |
| 29 | using type = mp_true; |
| 30 | }; |
| 31 | |
| 32 | #endif |
| 33 | |
| 34 | } // namespace detail |
| 35 | |
| 36 | template<class L> using mp_is_value_list = typename detail::mp_is_value_list_impl<L>::type; |
| 37 | |
| 38 | } // namespace mp11 |
| 39 | } // namespace boost |
| 40 | |
| 41 | #endif // #ifndef BOOST_MP11_DETAIL_MP_IS_VALUE_LIST_HPP_INCLUDED |
| 42 | |