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++98, c++03, c++11, c++14, c++17
9
10 // <string_view>
11
12 // constexpr bool ends_with(string_view x) const noexcept;
13
14 #include <string_view>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "constexpr_char_traits.h"
19
main(int,char **)20 int main(int, char**)
21 {
22 {
23 typedef std::string_view SV;
24 const char *s = "abcde";
25 SV sv0;
26 SV sv1 { s + 4, 1 };
27 SV sv2 { s + 3, 2 };
28 SV sv3 { s + 2, 3 };
29 SV sv4 { s + 1, 4 };
30 SV sv5 { s , 5 };
31 SV svNot {"def", 3 };
32
33 ASSERT_NOEXCEPT(sv0.ends_with(sv0));
34
35 assert ( sv0.ends_with(sv0));
36 assert (!sv0.ends_with(sv1));
37
38 assert ( sv1.ends_with(sv0));
39 assert ( sv1.ends_with(sv1));
40 assert (!sv1.ends_with(sv2));
41 assert (!sv1.ends_with(sv3));
42 assert (!sv1.ends_with(sv4));
43 assert (!sv1.ends_with(sv5));
44 assert (!sv1.ends_with(svNot));
45
46 assert ( sv2.ends_with(sv0));
47 assert ( sv2.ends_with(sv1));
48 assert ( sv2.ends_with(sv2));
49 assert (!sv2.ends_with(sv3));
50 assert (!sv2.ends_with(sv4));
51 assert (!sv2.ends_with(sv5));
52 assert (!sv2.ends_with(svNot));
53
54 assert ( svNot.ends_with(sv0));
55 assert (!svNot.ends_with(sv1));
56 assert (!svNot.ends_with(sv2));
57 assert (!svNot.ends_with(sv3));
58 assert (!svNot.ends_with(sv4));
59 assert (!svNot.ends_with(sv5));
60 assert ( svNot.ends_with(svNot));
61 }
62
63 #if TEST_STD_VER > 11
64 {
65 typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
66 constexpr const char *s = "abcde";
67 constexpr SV sv0 {};
68 constexpr SV sv1 { s + 4, 1 };
69 constexpr SV sv2 { s + 3, 2 };
70 constexpr SV sv3 { s + 2, 3 };
71 constexpr SV sv4 { s + 1, 4 };
72 constexpr SV sv5 { s, 5 };
73 constexpr SV svNot {"def", 3 };
74
75 static_assert ( sv0.ends_with(sv0), "" );
76 static_assert (!sv0.ends_with(sv1), "" );
77
78 static_assert ( sv1.ends_with(sv0), "" );
79 static_assert ( sv1.ends_with(sv1), "" );
80 static_assert (!sv1.ends_with(sv2), "" );
81 static_assert (!sv1.ends_with(sv3), "" );
82 static_assert (!sv1.ends_with(sv4), "" );
83 static_assert (!sv1.ends_with(sv5), "" );
84 static_assert (!sv1.ends_with(svNot), "" );
85
86 static_assert ( sv2.ends_with(sv0), "" );
87 static_assert ( sv2.ends_with(sv1), "" );
88 static_assert ( sv2.ends_with(sv2), "" );
89 static_assert (!sv2.ends_with(sv3), "" );
90 static_assert (!sv2.ends_with(sv4), "" );
91 static_assert (!sv2.ends_with(sv5), "" );
92 static_assert (!sv2.ends_with(svNot), "" );
93
94 static_assert ( svNot.ends_with(sv0), "" );
95 static_assert (!svNot.ends_with(sv1), "" );
96 static_assert (!svNot.ends_with(sv2), "" );
97 static_assert (!svNot.ends_with(sv3), "" );
98 static_assert (!svNot.ends_with(sv4), "" );
99 static_assert (!svNot.ends_with(sv5), "" );
100 static_assert ( svNot.ends_with(svNot), "" );
101 }
102 #endif
103
104 return 0;
105 }
106