mp11/detail/mp_is_list.hpp

0001 #ifndef BOOST_MP11_DETAIL_MP_IS_LIST_HPP_INCLUDED
0002 #define BOOST_MP11_DETAIL_MP_IS_LIST_HPP_INCLUDED
0003
0004 // Copyright 2015-2019 Peter Dimov.
0005 //
0006 // Distributed under the Boost Software License, Version 1.0.
0007 //
0008 // See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt
0010
0011 #include <boost/mp11/integral.hpp>
0012
0013 namespace boost
0014 {
0015 namespace mp11
0016 {
0017
0018 // mp_is_list<L>
0019 namespace detail
0020 {
0021
0022 template<class L> struct mp_is_list_impl
0023 {
0024     using type = mp_false;
0025 };
0026
0027 template<template<class...> class L, class... T> struct mp_is_list_impl<L<T...>>
0028 {
0029     using type = mp_true;
0030 };
0031
0032 } // namespace detail
0033
0034 template<class L> using mp_is_list = typename detail::mp_is_list_impl<L>::type;
0035
0036 } // namespace mp11
0037 } // namespace boost
0038
0039 #endif // #ifndef BOOST_MP11_DETAIL_MP_IS_LIST_HPP_INCLUDED