1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10
11 // Check that std::rotl and std::rotr are marked [[nodiscard]]
12
13 #include <bit>
14
func()15 void func() {
16 std::rotl(0u, 0); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
17 std::rotr(0u, 0); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
18 }
19