ceph/src/boost/boost/type_traits/add_lvalue_reference.hpp

   1 //  Copyright 2010 John Maddock
   2
   3 //  Distributed under the Boost Software License, Version 1.0.
   4 //  See http://www.boost.org/LICENSE_1_0.txt
   5
   6 #ifndef BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP
   7 #define BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP
   8
   9 #include <boost/type_traits/add_reference.hpp>
  10
  11 namespace boost{
  12
  13 template <class T> struct add_lvalue_reference
  14 {
  15    typedef typename boost::add_reference<T>::type type;
  16 };
  17
  18 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  19 template <class T> struct add_lvalue_reference<T&&>
  20 {
  21    typedef T& type;
  22 };
  23 #endif
  24
  25 #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
  26
  27    template <class T> using add_lvalue_reference_t = typename add_lvalue_reference<T>::type;
  28
  29 #endif
  30
  31 }
  32
  33 #endif  // BOOST_TYPE_TRAITS_EXT_ADD_LVALUE_REFERENCE__HPP