recursive_directory_iterator(error_code) can still throw filesystem_error

[Geurt Vos <geurt.vos@…>]

internally recursive_directory_iterator uses other filesystem facilities (such as is_directory and is_symlink) without passing the system::error_code argument. If they fail, they will throw filesystem_error.

Example on Linux (see ticket #5652):

int main() {

try {

error_code ec; for (recursive_directory_iterator i(".", ec); i != recursive_directory_iterator(); ++i) ;

} catch (const std::exception& e) {

std::cout << ">> " << e.what() << std::endl;

}

}

$ ln -s mybadlink mybadlink $ ./test

boost::filesystem::status: Too many levels of symbolic links: "./mybadlink"

[Beman Dawes]

(In [76667]) Fix #5653, recursive_directory_iterator(error_code) can still throw filesystem_error. Fix a second bug, discovered while testing 5653; recursive_directory_iterator::increment with error_code argument was not reporting the end iterator.