| // Copyright (C) 2016-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-do run { target c++17 } } |
| // { dg-require-filesystem-ts "" } |
| |
| #include <filesystem> |
| #include <testsuite_hooks.h> |
| #include <testsuite_fs.h> |
| |
| namespace fs = std::filesystem; |
| |
| void |
| test01() |
| { |
| std::error_code ec; |
| fs::recursive_directory_iterator dir; |
| dir.pop(ec); // This is undefined, but our implementation |
| VERIFY( ec ); // checks and returns an error. |
| VERIFY( dir == end(dir) ); |
| |
| std::error_code ec2; |
| try |
| { |
| dir.pop(); |
| } |
| catch (const fs::filesystem_error& ex) |
| { |
| ec2 = ex.code(); |
| } |
| VERIFY( ec2 == ec ); |
| } |
| |
| void |
| test02() |
| { |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| std::error_code ec; |
| const auto p = __gnu_test::nonexistent_path(); |
| create_directories(p / "d1/d2/d3"); |
| for (int i = 0; i < 3; ++i) |
| { |
| fs::recursive_directory_iterator dir(p); |
| VERIFY( dir != end(dir) ); |
| std::advance(dir, i); |
| VERIFY( dir != end(dir) ); |
| VERIFY( dir.depth() == i ); |
| ec = bad_ec; |
| dir.pop(ec); |
| VERIFY( !ec ); |
| VERIFY( dir == end(dir) ); |
| |
| dir = fs::recursive_directory_iterator(p); |
| std::advance(dir, i); |
| VERIFY( dir != end(dir) ); |
| VERIFY( dir.depth() == i ); |
| dir.pop(); |
| VERIFY( dir == end(dir) ); |
| } |
| remove_all(p, ec); |
| } |
| |
| void |
| test03() |
| { |
| const std::error_code bad_ec = make_error_code(std::errc::invalid_argument); |
| std::error_code ec; |
| const auto p = __gnu_test::nonexistent_path(); |
| create_directories(p / "d1/d2/d3"); |
| create_directories(p / "d1/d2/e3"); |
| create_directories(p / "d1/e2/d3"); |
| for (int i = 0; i < 3; ++i) |
| { |
| fs::recursive_directory_iterator dir(p); |
| std::advance(dir, i); |
| VERIFY( dir != end(dir) ); |
| int expected_depth = i; |
| VERIFY( dir.depth() == expected_depth ); |
| ec = bad_ec; |
| dir.pop(ec); |
| VERIFY( !ec ); |
| if (dir != end(dir)) |
| VERIFY( dir.depth() == (expected_depth - 1) ); |
| |
| dir = fs::recursive_directory_iterator(p); |
| std::advance(dir, i); |
| VERIFY( dir != end(dir) ); |
| VERIFY( dir.depth() == i ); |
| dir.pop(); |
| if (dir != end(dir)) |
| VERIFY( dir.depth() == (i -1) ); |
| } |
| remove_all(p, ec); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| } |