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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
9
10// <string>
11
12// constexpr bool contains(charT x) const noexcept;
13
14#include <string>
15#include <cassert>
16
17#include "test_macros.h"
18
19template <class S>
20constexpr void test_string() {
21 S s1{};
22 S s2{"abcde", 5};
23
24 ASSERT_NOEXCEPT(s1.contains('e'));
25
26 assert(!s1.contains('c'));
27 assert(!s1.contains('e'));
28 assert(!s1.contains('x'));
29 assert(s2.contains('c'));
30 assert(s2.contains('e'));
31 assert(!s2.contains('x'));
32}
33
34constexpr bool test() {
35 test_string<std::string>();
36
37 return true;
38}
39
40int main(int, char**) {
41 test();
42 static_assert(test());
43
44 return 0;
45}
46

source code of libcxx/test/std/strings/basic.string/string.contains/contains.char.pass.cpp