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83ffe9cd | 1 | // Copyright (C) 2015-2023 Free Software Foundation, Inc. |
429ee11a JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
ef0e80d2 | 18 | // { dg-options "-DUSE_FILESYSTEM_TS -lstdc++fs" } |
52066eae | 19 | // { dg-do run { target c++11 } } |
429ee11a JW |
20 | // { dg-require-filesystem-ts "" } |
21 | ||
22 | #include <experimental/filesystem> | |
23 | #include <testsuite_hooks.h> | |
24 | #include <testsuite_fs.h> | |
25 | ||
26 | namespace fs = std::experimental::filesystem; | |
27 | ||
28 | void | |
29 | test01() | |
30 | { | |
429ee11a JW |
31 | std::error_code ec; |
32 | ||
33 | // Test non-existent path. | |
34 | const auto p = __gnu_test::nonexistent_path(); | |
35 | fs::directory_iterator iter(p, ec); | |
36 | VERIFY( ec ); | |
69af1c04 | 37 | VERIFY( iter == end(iter) ); |
429ee11a JW |
38 | |
39 | // Test empty directory. | |
40 | create_directory(p, fs::current_path(), ec); | |
41 | VERIFY( !ec ); | |
42 | iter = fs::directory_iterator(p, ec); | |
43 | VERIFY( !ec ); | |
69af1c04 | 44 | VERIFY( iter == end(iter) ); |
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45 | |
46 | // Test non-empty directory. | |
9534a5e6 | 47 | create_directory(p / "x", ec); |
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48 | VERIFY( !ec ); |
49 | iter = fs::directory_iterator(p, ec); | |
50 | VERIFY( !ec ); | |
51 | VERIFY( iter != fs::directory_iterator() ); | |
9534a5e6 | 52 | VERIFY( iter->path() == p/"x" ); |
429ee11a | 53 | ++iter; |
69af1c04 | 54 | VERIFY( iter == end(iter) ); |
429ee11a | 55 | |
29b2fd37 JW |
56 | if (__gnu_test::permissions_are_testable()) |
57 | { | |
58 | // Test inaccessible directory. | |
59 | permissions(p, fs::perms::none, ec); | |
60 | VERIFY( !ec ); | |
61 | iter = fs::directory_iterator(p, ec); | |
62 | VERIFY( ec ); | |
63 | VERIFY( iter == end(iter) ); | |
429ee11a | 64 | |
29b2fd37 JW |
65 | // Test inaccessible directory, skipping permission denied. |
66 | const auto opts = fs::directory_options::skip_permission_denied; | |
67 | iter = fs::directory_iterator(p, opts, ec); | |
68 | VERIFY( !ec ); | |
69 | VERIFY( iter == end(iter) ); | |
70 | ||
71 | permissions(p, fs::perms::owner_all, ec); | |
72 | } | |
429ee11a | 73 | |
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74 | remove_all(p, ec); |
75 | } | |
76 | ||
d7187f9e JW |
77 | void |
78 | test02() | |
79 | { | |
d7187f9e JW |
80 | std::error_code ec; |
81 | const auto p = __gnu_test::nonexistent_path(); | |
82 | create_directory(p, fs::current_path(), ec); | |
9534a5e6 | 83 | create_directory(p / "x", ec); |
d7187f9e JW |
84 | VERIFY( !ec ); |
85 | ||
86 | // Test post-increment (libstdc++/71005) | |
87 | auto iter = fs::directory_iterator(p, ec); | |
88 | VERIFY( !ec ); | |
69af1c04 | 89 | VERIFY( iter != end(iter) ); |
d7187f9e JW |
90 | const auto entry1 = *iter; |
91 | const auto entry2 = *iter++; | |
92 | VERIFY( entry1 == entry2 ); | |
9534a5e6 | 93 | VERIFY( entry1.path() == p/"x" ); |
69af1c04 | 94 | VERIFY( iter == end(iter) ); |
d7187f9e JW |
95 | |
96 | remove_all(p, ec); | |
97 | } | |
98 | ||
99 | void | |
100 | test03() | |
101 | { | |
d7187f9e JW |
102 | std::error_code ec; |
103 | const auto p = __gnu_test::nonexistent_path(); | |
104 | create_directories(p / "longer_than_small_string_buffer", ec); | |
105 | VERIFY( !ec ); | |
106 | ||
107 | // Test for no reallocation on each dereference (this is a GNU extension) | |
108 | auto iter = fs::directory_iterator(p, ec); | |
109 | const auto* s1 = iter->path().c_str(); | |
110 | const auto* s2 = iter->path().c_str(); | |
111 | VERIFY( s1 == s2 ); | |
112 | ||
113 | remove_all(p, ec); | |
114 | } | |
115 | ||
7f99d40a JW |
116 | void |
117 | test04() | |
118 | { | |
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119 | const fs::directory_iterator it; |
120 | VERIFY( it == fs::directory_iterator() ); | |
121 | } | |
122 | ||
123 | void | |
124 | test05() | |
125 | { | |
7f99d40a JW |
126 | auto p = __gnu_test::nonexistent_path(); |
127 | create_directory(p); | |
9534a5e6 | 128 | create_directory(p / "x"); |
7f99d40a JW |
129 | fs::directory_iterator it(p), endit; |
130 | VERIFY( begin(it) == it ); | |
131 | static_assert( noexcept(begin(it)), "begin is noexcept" ); | |
132 | VERIFY( end(it) == endit ); | |
133 | static_assert( noexcept(end(it)), "end is noexcept" ); | |
7c4979b2 JW |
134 | |
135 | std::error_code ec; | |
136 | remove_all(p, ec); | |
7f99d40a JW |
137 | } |
138 | ||
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139 | int |
140 | main() | |
141 | { | |
142 | test01(); | |
d7187f9e JW |
143 | test02(); |
144 | test03(); | |
7f99d40a JW |
145 | test04(); |
146 | test05(); | |
429ee11a | 147 | } |