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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/experimental/filesystem/iterators/directory_iterator.cc
1 // Copyright (C) 2015-2016 Free Software Foundation, Inc.
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)
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.
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/>.
18 // { dg-options "-lstdc++fs" }
19 // { dg-do run { target c++11 } }
20 // { dg-require-filesystem-ts "" }
22 #include <experimental/filesystem>
23 #include <testsuite_hooks.h>
24 #include <testsuite_fs.h>
26 namespace fs
= std::experimental::filesystem
;
33 // Test non-existent path.
34 const auto p
= __gnu_test::nonexistent_path();
35 fs::directory_iterator
iter(p
, ec
);
37 VERIFY( iter
== fs::directory_iterator() );
39 // Test empty directory.
40 create_directory(p
, fs::current_path(), ec
);
42 iter
= fs::directory_iterator(p
, ec
);
44 VERIFY( iter
== fs::directory_iterator() );
46 // Test non-empty directory.
47 create_directory_symlink(p
, p
/ "l", ec
);
49 iter
= fs::directory_iterator(p
, ec
);
51 VERIFY( iter
!= fs::directory_iterator() );
52 VERIFY( iter
->path() == p
/"l" );
54 VERIFY( iter
== fs::directory_iterator() );
56 // Test inaccessible directory.
57 permissions(p
, fs::perms::none
, ec
);
59 iter
= fs::directory_iterator(p
, ec
);
61 VERIFY( iter
== fs::directory_iterator() );
63 // Test inaccessible directory, skipping permission denied.
64 const auto opts
= fs::directory_options::skip_permission_denied
;
65 iter
= fs::directory_iterator(p
, opts
, ec
);
67 VERIFY( iter
== fs::directory_iterator() );
69 permissions(p
, fs::perms::owner_all
, ec
);
77 const auto p
= __gnu_test::nonexistent_path();
78 create_directory(p
, fs::current_path(), ec
);
79 create_directory_symlink(p
, p
/ "l", ec
);
82 // Test post-increment (libstdc++/71005)
83 auto iter
= fs::directory_iterator(p
, ec
);
85 VERIFY( iter
!= fs::directory_iterator() );
86 const auto entry1
= *iter
;
87 const auto entry2
= *iter
++;
88 VERIFY( entry1
== entry2
);
89 VERIFY( entry1
.path() == p
/"l" );
90 VERIFY( iter
== fs::directory_iterator() );
99 const auto p
= __gnu_test::nonexistent_path();
100 create_directories(p
/ "longer_than_small_string_buffer", ec
);
103 // Test for no reallocation on each dereference (this is a GNU extension)
104 auto iter
= fs::directory_iterator(p
, ec
);
105 const auto* s1
= iter
->path().c_str();
106 const auto* s2
= iter
->path().c_str();
115 const fs::directory_iterator it
;
116 VERIFY( it
== fs::directory_iterator() );
122 auto p
= __gnu_test::nonexistent_path();
124 create_directory_symlink(p
, p
/ "l");
125 fs::directory_iterator
it(p
), endit
;
126 VERIFY( begin(it
) == it
);
127 static_assert( noexcept(begin(it
)), "begin is noexcept" );
128 VERIFY( end(it
) == endit
);
129 static_assert( noexcept(end(it
)), "end is noexcept" );