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// REQUIRES: can-create-symlinks
10// UNSUPPORTED: c++03, c++11, c++14
11// UNSUPPORTED: no-filesystem
12// UNSUPPORTED: availability-filesystem-missing
13
14// <filesystem>
15
16// class recursive_directory_iterator
17
18// recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept;
19// recursive_directory_iterator end(recursive_directory_iterator iter) noexcept;
20
21#include <filesystem>
22#include <type_traits>
23#include <set>
24#include <cassert>
25
26#include "test_macros.h"
27#include "filesystem_test_helper.h"
28namespace fs = std::filesystem;
29using namespace fs;
30
31static void test_function_signatures()
32{
33 recursive_directory_iterator d;
34
35 ASSERT_SAME_TYPE(decltype(begin(d)), recursive_directory_iterator);
36 ASSERT_SAME_TYPE(decltype(begin(std::move(d))), recursive_directory_iterator);
37 ASSERT_NOEXCEPT(begin(iter: d));
38 ASSERT_NOEXCEPT(begin(iter: std::move(d)));
39
40 ASSERT_SAME_TYPE(decltype(end(d)), recursive_directory_iterator);
41 ASSERT_SAME_TYPE(decltype(end(std::move(d))), recursive_directory_iterator);
42 ASSERT_NOEXCEPT(end(d));
43 ASSERT_NOEXCEPT(end(std::move(d)));
44}
45
46static void test_ranged_for_loop()
47{
48 static_test_env static_env;
49 const path testDir = static_env.Dir;
50 std::set<path> dir_contents(static_env.RecDirIterationList.begin(),
51 static_env.RecDirIterationList.end());
52
53 std::error_code ec;
54 recursive_directory_iterator it(testDir, ec);
55 assert(!ec);
56
57 for (auto& elem : it) {
58 assert(dir_contents.erase(elem) == 1);
59 }
60 assert(dir_contents.empty());
61}
62
63int main(int, char**) {
64 test_function_signatures();
65 test_ranged_for_loop();
66
67 return 0;
68}
69

source code of libcxx/test/std/input.output/filesystems/class.rec.dir.itr/rec.dir.itr.nonmembers/begin_end.pass.cpp