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 // <string>
10 
11 // void clear();
12 
13 #include <string>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 #include "min_allocator.h"
18 
19 template <class S>
20 void
test(S s)21 test(S s)
22 {
23     s.clear();
24     assert(s.size() == 0);
25 }
26 
main(int,char **)27 int main(int, char**)
28 {
29     {
30     typedef std::string S;
31     S s;
32     test(s);
33 
34     s.assign(10, 'a');
35     s.erase(5);
36     test(s);
37 
38     s.assign(100, 'a');
39     s.erase(50);
40     test(s);
41     }
42 #if TEST_STD_VER >= 11
43     {
44     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
45     S s;
46     test(s);
47 
48     s.assign(10, 'a');
49     s.erase(5);
50     test(s);
51 
52     s.assign(100, 'a');
53     s.erase(50);
54     test(s);
55     }
56 #endif
57 
58   return 0;
59 }
60