1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <string>
11
12// we get this comparison "for free" because the string implicitly converts to the string_view
13
14#include <string>
15#include <cassert>
16
17#include "min_allocator.h"
18
19template <class S, class SV>
20void
21test(SV lhs, const S& rhs, bool x)
22{
23    assert((lhs != rhs) == x);
24}
25
26int main()
27{
28    {
29    typedef std::string S;
30    typedef std::string_view SV;
31    test(SV(""), S(""), false);
32    test(SV(""), S("abcde"), true);
33    test(SV(""), S("abcdefghij"), true);
34    test(SV(""), S("abcdefghijklmnopqrst"), true);
35    test(SV("abcde"), S(""), true);
36    test(SV("abcde"), S("abcde"), false);
37    test(SV("abcde"), S("abcdefghij"), true);
38    test(SV("abcde"), S("abcdefghijklmnopqrst"), true);
39    test(SV("abcdefghij"), S(""), true);
40    test(SV("abcdefghij"), S("abcde"), true);
41    test(SV("abcdefghij"), S("abcdefghij"), false);
42    test(SV("abcdefghij"), S("abcdefghijklmnopqrst"), true);
43    test(SV("abcdefghijklmnopqrst"), S(""), true);
44    test(SV("abcdefghijklmnopqrst"), S("abcde"), true);
45    test(SV("abcdefghijklmnopqrst"), S("abcdefghij"), true);
46    test(SV("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), false);
47    }
48#if TEST_STD_VER >= 11
49    {
50    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
51    typedef std::basic_string_view<char, std::char_traits<char>> SV;
52    test(SV(""), S(""), false);
53    test(SV(""), S("abcde"), true);
54    test(SV(""), S("abcdefghij"), true);
55    test(SV(""), S("abcdefghijklmnopqrst"), true);
56    test(SV("abcde"), S(""), true);
57    test(SV("abcde"), S("abcde"), false);
58    test(SV("abcde"), S("abcdefghij"), true);
59    test(SV("abcde"), S("abcdefghijklmnopqrst"), true);
60    test(SV("abcdefghij"), S(""), true);
61    test(SV("abcdefghij"), S("abcde"), true);
62    test(SV("abcdefghij"), S("abcdefghij"), false);
63    test(SV("abcdefghij"), S("abcdefghijklmnopqrst"), true);
64    test(SV("abcdefghijklmnopqrst"), S(""), true);
65    test(SV("abcdefghijklmnopqrst"), S("abcde"), true);
66    test(SV("abcdefghijklmnopqrst"), S("abcdefghij"), true);
67    test(SV("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), false);
68    }
69#endif
70}
71