boost/type_traits/type_identity.hpp

#ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED
#define BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED
//
//  Copyright 2015 Peter Dimov
//
//  Distributed under the Boost Software License, Version 1.0.
//  See accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt
//
namespace boost
{
template<class T> struct type_identity
{
    typedef T type;
};
} // namespace boost
#endif // #ifndef BOOST_TYPE_TRAITS_TYPE_IDENTITY_HPP_INCLUDED