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// REQUIRES: c++20 || c++23
14
15#include <string>
16
17void f() {
18 std::string s;
19 s.reserve(); // expected-warning {{'reserve' is deprecated}}
20}
21

source code of libcxx/test/std/strings/basic.string/string.capacity/reserve.deprecated_in_cxx20.verify.cpp