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#ifndef TEST_STD_INPUTOUTPUT_STRINGSTREAMS_HELPER_CONCEPTS_H
10#define TEST_STD_INPUTOUTPUT_STRINGSTREAMS_HELPER_CONCEPTS_H
11
12template <typename S, typename T>
13concept is_valid_argument_for_str_member = requires(S s, const T& sv) {
14 { s.str(sv) };
15};
16
17#endif // TEST_STD_INPUTOUTPUT_STRINGSTREAMS_HELPER_CONCEPTS_H
18

source code of libcxx/test/std/input.output/string.streams/helper_concepts.h