| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <utility> |
| |
| // template <class T1, class T2> struct pair |
| |
| // template<class U, class V> pair& operator=(pair<U, V>&& p); |
| |
| #include <utility> |
| #include <memory> |
| #include <cassert> |
| |
| struct Base |
| { |
| virtual ~Base() {} |
| }; |
| |
| struct Derived |
| : public Base |
| { |
| }; |
| |
| int main() |
| { |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| { |
| typedef std::pair<std::unique_ptr<Derived>, short> P1; |
| typedef std::pair<std::unique_ptr<Base>, long> P2; |
| P1 p1(std::unique_ptr<Derived>(), 4); |
| P2 p2; |
| p2 = std::move(p1); |
| assert(p2.first == nullptr); |
| assert(p2.second == 4); |
| } |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| } |