| [/ |
| Copyright 2010 John Maddock. |
| 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). |
| ] |
| |
| [section:is_rvalue_reference is_rvalue_reference] |
| template <class T> |
| struct is_rvalue_reference : public __tof {}; |
| |
| __inherit If T is an rvalue reference type |
| then inherits from __true_type, |
| otherwise inherits from __false_type. |
| |
| __std_ref 3.9.2 and 8.3.2. |
| |
| __compat If the compiler does not |
| support partial-specialization of class templates, |
| then this template may report the wrong result for function types, |
| and for types that are both const and volatile qualified. |
| |
| __header ` #include <boost/type_traits/is_rvalue_reference.hpp>` or ` #include <boost/type_traits.hpp>` |
| |
| __examples |
| |
| [:`is_rvalue_reference<int&&>` inherits from `__true_type`.] |
| |
| [:`is_rvalue_reference<int const&&>::type` is the type `__true_type`.] |
| |
| [:`is_rvalue_reference<int const&>::type` is the type `__false_type`.] |
| |
| [:`is_rvalue_reference<int (&&)(long)>::value` is an integral constant |
| expression that evaluates to /true/ (the argument in this case is |
| an rvalue reference to a function).] |
| |
| [:`is_rvalue_reference<T>::value_type` is the type `bool`.] |
| |
| [endsect] |
| |