68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
// <future>
|
||
|
|
|
||
|
|
// class promise<R>
|
||
|
|
|
||
|
|
// void promise::set_value(R&& r);
|
||
|
|
|
||
|
|
#include <future>
|
||
|
|
#include <memory>
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
#ifdef _LIBCPP_MOVE
|
||
|
|
|
||
|
|
struct A
|
||
|
|
{
|
||
|
|
A() {}
|
||
|
|
A(const A&) = delete;
|
||
|
|
A(A&&) {throw 9;}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // _LIBCPP_MOVE
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
#ifdef _LIBCPP_MOVE
|
||
|
|
{
|
||
|
|
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_MOVE
|
||
|
|
}
|