1 | #ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED |
2 | #define BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED |
3 | |
4 | // |
5 | // Copyright 2015 Peter Dimov |
6 | // |
7 | // Distributed under the Boost Software License, Version 1.0. |
8 | // See accompanying file LICENSE_1_0.txt or copy at |
9 | // http://www.boost.org/LICENSE_1_0.txt |
10 | // |
11 | |
12 | namespace boost |
13 | { |
14 | |
15 | template<class T> struct type_identity |
16 | { |
17 | typedef T type; |
18 | }; |
19 | |
20 | #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
21 | |
22 | template <class T> using type_identity_t = typename type_identity<T>::type; |
23 | |
24 | #endif |
25 | |
26 | |
27 | } // namespace boost |
28 | |
29 | #endif // #ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED |
30 | |