1 //
2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
3 // See https://llvm.org/LICENSE.txt for license information.
4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
5 //
6 //===----------------------------------------------------------------------===//
7
8 // UNSUPPORTED: c++03, c++11, c++14, c++17
9
10 // <atomic_ref>
11
12 // template<class T>
13 // class atomic_ref;
14
15 // The program is ill-formed if is_trivially_copyable_v<T> is false.
16
17 #include <atomic>
18
trivially_copyable()19 void trivially_copyable() {
20 struct X {
21 X() = default;
22 X(X const&) {} // -> not trivially copyable
23 } x;
24 // expected-error-re@*:* {{static assertion failed {{.*}}atomic_ref<T> requires that 'T' be a trivially copyable type}}
25 std::atomic_ref<X> r(x);
26 }
27