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(basic_string<charT,traits,Allocator>&& str); // constexpr since C++20
14
15#include <string>
16#include <cassert>
17
18#include "test_macros.h"
19#include "test_allocator.h"
20#include "min_allocator.h"
21#include "asan_testing.h"
22
23template <class S>
24TEST_CONSTEXPR_CXX20 void test(S s0) {
25 S s1 = s0;
26 S s2 = std::move(s0);
27 LIBCPP_ASSERT(s2.__invariants());
28 LIBCPP_ASSERT(s0.__invariants());
29 assert(s2 == s1);
30 assert(s2.capacity() >= s2.size());
31 assert(s2.get_allocator() == s1.get_allocator());
32 LIBCPP_ASSERT(is_string_asan_correct(s0));
33 LIBCPP_ASSERT(is_string_asan_correct(s1));
34 LIBCPP_ASSERT(is_string_asan_correct(s2));
35}
36
37template <class Alloc>
38TEST_CONSTEXPR_CXX20 void test_string(Alloc const& a) {
39 using S = std::basic_string<char, std::char_traits<char>, Alloc>;
40 test(S(Alloc(a)));
41 test(S("1", Alloc(a)));
42 test(S("1234567890123456789012345678901234567890123456789012345678901234567890", Alloc(a)));
43}
44
45TEST_CONSTEXPR_CXX20 bool test() {
46 test_string(std::allocator<char>());
47 test_string(test_allocator<char>());
48 test_string(test_allocator<char>(3));
49 test_string(min_allocator<char>());
50
51 return true;
52}
53
54int main(int, char**) {
55 test();
56#if TEST_STD_VER > 17
57 static_assert(test());
58#endif
59
60 return 0;
61}
62

source code of libcxx/test/std/strings/basic.string/string.cons/move.pass.cpp