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 // <array>
10 
11 // An string is a contiguous container
12 
13 #include <string>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 #include "test_allocator.h"
18 #include "min_allocator.h"
19 
20 
21 template <class C>
22 void test_contiguous ( const C &c )
23 {
24     for ( size_t i = 0; i < c.size(); ++i )
25         assert ( *(c.begin() + static_cast<typename C::difference_type>(i)) == *(std::addressof(*c.begin()) + i));
26 }
27 
28 int main(int, char**)
29 {
30     {
31     typedef std::string S;
32     test_contiguous(S());
33     test_contiguous(S("1"));
34     test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890"));
35     }
36 
37     {
38     typedef test_allocator<char> A;
39     typedef std::basic_string<char, std::char_traits<char>, A> S;
40     test_contiguous(S(A(3)));
41     test_contiguous(S("1", A(5)));
42     test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)));
43     }
44 #if TEST_STD_VER >= 11
45     {
46     typedef min_allocator<char> A;
47     typedef std::basic_string<char, std::char_traits<char>, A> S;
48     test_contiguous(S(A{}));
49     test_contiguous(S("1", A()));
50     test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()));
51     }
52 #endif
53 
54   return 0;
55 }
56