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 // XFAIL: LIBCXX-AIX-FIXME
10 
11 // <string>
12 
13 // size_type size() const; // constexpr since C++20
14 
15 #include <string>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "min_allocator.h"
20 
21 template <class S>
22 TEST_CONSTEXPR_CXX20 void
23 test(const S& s, typename S::size_type c)
24 {
25     assert(s.size() == c);
26 }
27 
28 TEST_CONSTEXPR_CXX20 bool test() {
29   {
30     typedef std::string S;
31     test(S(), 0);
32     test(S("123"), 3);
33     test(S("12345678901234567890123456789012345678901234567890"), 50);
34   }
35 #if TEST_STD_VER >= 11
36   {
37     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
38     test(S(), 0);
39     test(S("123"), 3);
40     test(S("12345678901234567890123456789012345678901234567890"), 50);
41   }
42 #endif
43 
44   return true;
45 }
46 
47 int main(int, char**)
48 {
49   test();
50 #if TEST_STD_VER > 17
51   static_assert(test());
52 #endif
53 
54   return 0;
55 }
56