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
10
11 // check that <array> functions are marked [[nodiscard]]
12
13 #include <array>
14
array_test()15 void array_test() {
16 std::array<int, 1> array;
17 array.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
18 }
19
empty_array_test()20 void empty_array_test() {
21 std::array<int, 0> array;
22 array.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
23 }
24