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 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 
11 // <string_view>
12 
13 //   constexpr bool ends_with(charT x) const noexcept;
14 
15 #include <string_view>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "constexpr_char_traits.h"
20 
21 int main(int, char**)
22 {
23     {
24     typedef std::string_view SV;
25     SV  sv1 {};
26     SV  sv2 { "abcde", 5 };
27 
28     ASSERT_NOEXCEPT(sv1.ends_with('e'));
29 
30     assert (!sv1.ends_with('e'));
31     assert (!sv1.ends_with('x'));
32     assert ( sv2.ends_with('e'));
33     assert (!sv2.ends_with('x'));
34     }
35 
36 #if TEST_STD_VER > 11
37     {
38     typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
39     constexpr SV  sv1 {};
40     constexpr SV  sv2 { "abcde", 5 };
41     static_assert (!sv1.ends_with('e'), "" );
42     static_assert (!sv1.ends_with('x'), "" );
43     static_assert ( sv2.ends_with('e'), "" );
44     static_assert (!sv2.ends_with('x'), "" );
45     }
46 #endif
47 
48   return 0;
49 }
50