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 // UNSUPPORTED: c++03, c++11, c++14, c++17
9
10 // <string>
11
12 // constexpr bool ends_with(basic_string_view x) const noexcept;
13
14 #include <string>
15 #include <cassert>
16
17 #include "test_macros.h"
18
test()19 constexpr bool test() {
20 {
21 typedef std::string S;
22 typedef std::string_view SV;
23 const char *s = "abcde";
24
25 S s0;
26 S s1 { s + 4, 1 };
27 S s2 { s + 3, 2 };
28 // S s3 { s + 2, 3 };
29 // S s4 { s + 1, 4 };
30 // S s5 { s, 5 };
31 S sNot { "def", 3 };
32
33 SV sv0;
34 SV sv1 { s + 4, 1 };
35 SV sv2 { s + 3, 2 };
36 SV sv3 { s + 2, 3 };
37 SV sv4 { s + 1, 4 };
38 SV sv5 { s , 5 };
39 SV svNot {"def", 3 };
40
41 ASSERT_NOEXCEPT(s0.ends_with(sv0));
42
43 assert ( s0.ends_with(sv0));
44 assert (!s0.ends_with(sv1));
45
46 assert ( s1.ends_with(sv0));
47 assert ( s1.ends_with(sv1));
48 assert (!s1.ends_with(sv2));
49 assert (!s1.ends_with(sv3));
50 assert (!s1.ends_with(sv4));
51 assert (!s1.ends_with(sv5));
52 assert (!s1.ends_with(svNot));
53
54 assert ( s2.ends_with(sv0));
55 assert ( s2.ends_with(sv1));
56 assert ( s2.ends_with(sv2));
57 assert (!s2.ends_with(sv3));
58 assert (!s2.ends_with(sv4));
59 assert (!s2.ends_with(sv5));
60 assert (!s2.ends_with(svNot));
61
62 assert ( sNot.ends_with(sv0));
63 assert (!sNot.ends_with(sv1));
64 assert (!sNot.ends_with(sv2));
65 assert (!sNot.ends_with(sv3));
66 assert (!sNot.ends_with(sv4));
67 assert (!sNot.ends_with(sv5));
68 assert ( sNot.ends_with(svNot));
69 }
70
71 return true;
72 }
73
main(int,char **)74 int main(int, char**) {
75 test();
76 static_assert(test());
77
78 return 0;
79 }
80