1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// UNSUPPORTED: c++98, c++03 11 12// <utility> 13 14// template <class T1, class T2> struct pair 15 16// template<class U, class V> pair& operator=(pair<U, V>&& p); 17 18#include <utility> 19#include <memory> 20#include <cassert> 21 22struct Base 23{ 24 virtual ~Base() {} 25}; 26 27struct Derived 28 : public Base 29{ 30}; 31 32int main() 33{ 34 { 35 typedef std::pair<std::unique_ptr<Derived>, short> P1; 36 typedef std::pair<std::unique_ptr<Base>, long> P2; 37 P1 p1(std::unique_ptr<Derived>(), static_cast<short>(4)); 38 P2 p2; 39 p2 = std::move(p1); 40 assert(p2.first == nullptr); 41 assert(p2.second == 4); 42 } 43} 44