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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.
//
//===----------------------------------------------------------------------===//
// <future>
// class shared_future<R>
// shared_future& operator=(const shared_future& rhs);
#include <future>
#include <cassert>
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
{
typedef int T;
std::promise<T> p;
std::shared_future<T> f0 = p.get_future();
std::shared_future<T> f;
f = f0;
assert(f0.valid());
assert(f.valid());
}
{
typedef int T;
std::shared_future<T> f0;
std::shared_future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
{
typedef int& T;
std::promise<T> p;
std::shared_future<T> f0 = p.get_future();
std::shared_future<T> f;
f = f0;
assert(f0.valid());
assert(f.valid());
}
{
typedef int& T;
std::shared_future<T> f0;
std::shared_future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
{
typedef void T;
std::promise<T> p;
std::shared_future<T> f0 = p.get_future();
std::shared_future<T> f;
f = f0;
assert(f0.valid());
assert(f.valid());
}
{
typedef void T;
std::shared_future<T> f0;
std::shared_future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}
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