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// Copyright (C) 2016-2023 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();
}
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