53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// UNSUPPORTED: no-threads
|
||
|
|
// UNSUPPORTED: libcpp-has-no-experimental-stop_token
|
||
|
|
// UNSUPPORTED: c++03, c++11, c++14, c++17
|
||
|
|
// XFAIL: availability-synchronization_library-missing
|
||
|
|
|
||
|
|
// friend void swap(stop_token& x, stop_token& y) noexcept;
|
||
|
|
|
||
|
|
#include <cassert>
|
||
|
|
#include <concepts>
|
||
|
|
#include <stop_token>
|
||
|
|
#include <type_traits>
|
||
|
|
|
||
|
|
#include "test_macros.h"
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
concept IsNoThrowFreeSwappable = requires(T& t) {
|
||
|
|
{ swap(t, t) } noexcept;
|
||
|
|
};
|
||
|
|
|
||
|
|
static_assert(IsNoThrowFreeSwappable<std::stop_token>);
|
||
|
|
|
||
|
|
int main(int, char**) {
|
||
|
|
{
|
||
|
|
std::stop_token st1;
|
||
|
|
|
||
|
|
std::stop_source source;
|
||
|
|
auto st2 = source.get_token();
|
||
|
|
|
||
|
|
assert(st1 != st2);
|
||
|
|
|
||
|
|
source.request_stop();
|
||
|
|
|
||
|
|
assert(!st1.stop_requested());
|
||
|
|
assert(st2.stop_requested());
|
||
|
|
|
||
|
|
swap(st1, st2);
|
||
|
|
|
||
|
|
assert(st1 != st2);
|
||
|
|
assert(st1.stop_requested());
|
||
|
|
assert(!st2.stop_requested());
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|