1#ifndef BOOST_CORE_IS_SAME_HPP_INCLUDED
2#define BOOST_CORE_IS_SAME_HPP_INCLUDED
3
4// MS compatible compilers support #pragma once
5
6#if defined(_MSC_VER) && (_MSC_VER >= 1020)
7# pragma once
8#endif
9
10// is_same<T1,T2>::value is true when T1 == T2
11//
12// Copyright 2014 Peter Dimov
13//
14// Distributed under the Boost Software License, Version 1.0.
15// See accompanying file LICENSE_1_0.txt or copy at
16// http://www.boost.org/LICENSE_1_0.txt
17
18#include <boost/config.hpp>
19
20namespace boost
21{
22
23namespace core
24{
25
26template< class T1, class T2 > struct is_same
27{
28 BOOST_STATIC_CONSTANT( bool, value = false );
29};
30
31template< class T > struct is_same< T, T >
32{
33 BOOST_STATIC_CONSTANT( bool, value = true );
34};
35
36} // namespace core
37
38} // namespace boost
39
40#endif // #ifndef BOOST_CORE_IS_SAME_HPP_INCLUDED
41

source code of include/boost/core/is_same.hpp