//===----------------------------------------------------------------------===// // // 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 }