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 // <string>
10 
11 // void reserve(); // Deprecated in C++20
12 
13 // UNSUPPORTED: c++03, c++11, c++14, c++17
14 
15 #include <string>
16 
17 int main(int, char**)
18 {
19     std::string s;
20     s.reserve(); // expected-warning {{'reserve' is deprecated}}
21     return 0;
22 }
23