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// UNSUPPORTED: c++03
10
11// <string>
12
13// basic_string& append(initializer_list<charT> il); // constexpr since C++20
14
15#include <string>
16#include <cassert>
17
18#include "test_macros.h"
19#include "min_allocator.h"
20#include "nasty_string.h"
21#include "asan_testing.h"
22
23template <class S>
24TEST_CONSTEXPR_CXX20 void test() {
25 using CharT = typename S::value_type;
26
27 S s(CONVERT_TO_CSTRING(CharT, "123"));
28 s.append({CharT('a'), CharT('b'), CharT('c')});
29 assert(s == CONVERT_TO_CSTRING(CharT, "123abc"));
30 LIBCPP_ASSERT(is_string_asan_correct(s));
31}
32
33TEST_CONSTEXPR_CXX20 bool test() {
34 test<std::string>();
35#ifndef TEST_HAS_NO_WIDE_CHARACTERS
36 test<std::wstring>();
37#endif
38#if TEST_STD_VER >= 20
39 test<std::u8string>();
40#endif
41 test<std::u16string>();
42 test<std::u32string>();
43
44 test<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
45 test<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>();
46#if TEST_STD_VER >= 20
47 test<nasty_string>();
48#endif
49
50 return true;
51}
52
53int main(int, char**) {
54 test();
55#if TEST_STD_VER > 17
56 static_assert(test());
57#endif
58
59 return 0;
60}
61

source code of libcxx/test/std/strings/basic.string/string.modifiers/string_append/initializer_list.pass.cpp