ceph/src/boost/boost/type_traits/type_identity.hpp

   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