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 19 template <class S> test_string()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 test()34constexpr bool test() { 35 test_string<std::string>(); 36 37 return true; 38 } 39 main(int,char **)40int main(int, char**) { 41 test(); 42 static_assert(test()); 43 44 return 0; 45 } 46