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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 promise<R>
// void promise::set_value(R&& r);
#include <future>
#include <memory>
#include <cassert>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct A
{
A() {}
A(const A&) = delete;
A(A&&) {throw 9;}
};
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
{
typedef std::unique_ptr<int> T;
T i(new int(3));
std::promise<T> p;
std::future<T> f = p.get_future();
p.set_value(std::move(i));
assert(*f.get() == 3);
try
{
p.set_value(std::move(i));
assert(false);
}
catch (const std::future_error& e)
{
assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied));
}
}
{
typedef A T;
T i;
std::promise<T> p;
std::future<T> f = p.get_future();
try
{
p.set_value(std::move(i));
assert(false);
}
catch (int j)
{
assert(j == 9);
}
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}
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