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