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 // UNSUPPORTED: no-filesystem
11 // UNSUPPORTED: availability-filesystem-missing
12 
13 // recursive_directory_iterator
14 
15 #include <filesystem>
16 
17 #include <concepts>
18 #include <ranges>
19 namespace fs = std::filesystem;
20 
21 static_assert(std::same_as<std::ranges::iterator_t<fs::recursive_directory_iterator>, fs::recursive_directory_iterator>);
22 static_assert(std::ranges::common_range<fs::recursive_directory_iterator>);
23 static_assert(std::ranges::input_range<fs::recursive_directory_iterator>);
24 static_assert(std::ranges::view<fs::recursive_directory_iterator>);
25 static_assert(!std::ranges::sized_range<fs::recursive_directory_iterator>);
26 static_assert(std::ranges::borrowed_range<fs::recursive_directory_iterator>);
27 static_assert(std::ranges::viewable_range<fs::recursive_directory_iterator>);
28 
29 static_assert(std::same_as<std::ranges::iterator_t<fs::recursive_directory_iterator&>, fs::recursive_directory_iterator>);
30 static_assert(std::ranges::common_range<fs::recursive_directory_iterator&>);
31 static_assert(std::ranges::input_range<fs::recursive_directory_iterator&>);
32 static_assert(!std::ranges::view<fs::recursive_directory_iterator&>);
33 static_assert(!std::ranges::sized_range<fs::recursive_directory_iterator&>);
34 static_assert(std::ranges::borrowed_range<fs::recursive_directory_iterator&>);
35 static_assert(std::ranges::viewable_range<fs::recursive_directory_iterator&>);
36 
37 static_assert(std::same_as<std::ranges::iterator_t<const fs::recursive_directory_iterator&>, fs::recursive_directory_iterator>);
38 static_assert(std::ranges::common_range<const fs::recursive_directory_iterator&>);
39 static_assert(std::ranges::input_range<const fs::recursive_directory_iterator&>);
40 static_assert(!std::ranges::view<const fs::recursive_directory_iterator&>);
41 static_assert(!std::ranges::sized_range<const fs::recursive_directory_iterator&>);
42 static_assert(std::ranges::borrowed_range<const fs::recursive_directory_iterator&>);
43 static_assert(std::ranges::viewable_range<const fs::recursive_directory_iterator&>);
44