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 // constexpr explicit sentinel(split_view& parent);
12
13 #include <cassert>
14 #include <ranges>
15 #include <type_traits>
16
17 #include "test_iterators.h"
18
19 // test explicit
20 using Range = std::ranges::subrange<int*, sentinel_wrapper<int*>>;
21 using SplitView = std::ranges::split_view<Range, std::ranges::single_view<int>>;
22 using SplitSent = std::ranges::sentinel_t<SplitView>;
23
24 static_assert(std::is_constructible_v<SplitSent, SplitView&>);
25 static_assert(!std::is_convertible_v<SplitView&, SplitSent>);
26
test()27 constexpr bool test() {
28 {
29 int buffer[] = {0, 1, 2};
30 Range input{buffer, sentinel_wrapper<int*>(buffer + 3)};
31 SplitView sv(input, -1);
32 auto it = sv.begin();
33
34 SplitSent sent(sv);
35 assert(sent != it);
36
37 ++it;
38 assert(sent == it);
39 }
40
41 return true;
42 }
43
main(int,char **)44 int main(int, char**) {
45 test();
46 static_assert(test());
47
48 return 0;
49 }
50