Function directory_iterator_increment

src/directory.cpp:1270–1324

}

BOOST_FILESYSTEM_DECL
void directory_iterator_increment(directory_iterator& it, system::error_code* ec)
{
    BOOST_ASSERT_MSG(!it.is_end(), "attempt to increment end iterator");

    if (ec)
        ec->clear();

    try
    {
        path filename;
        file_status file_stat, symlink_file_stat;
        system::error_code increment_ec;

        while (true)
        {
            increment_ec = dir_itr_increment(*it.m_imp, filename, file_stat, symlink_file_stat);

            if (BOOST_UNLIKELY(!!increment_ec)) // happens if filesystem is corrupt, such as on a damaged optical disc
            {
                boost::intrusive_ptr< detail::dir_itr_imp > imp;
                imp.swap(it.m_imp);
                path error_path(imp->dir_entry.path().parent_path()); // fix ticket #5900
                if (!ec)
                    BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::directory_iterator::operator++", error_path, increment_ec));

                *ec = increment_ec;
                return;
            }

            if (it.m_imp->handle == nullptr) // eof, make end
            {
                it.m_imp.reset();
                return;
            }

            const path::string_type::value_type* filename_str = filename.c_str();
            if (!(filename_str[0] == path::dot // !(dot or dot-dot)
                  && (filename_str[1] == static_cast< path::string_type::value_type >('\0') ||
                      (filename_str[1] == path::dot && filename_str[2] == static_cast< path::string_type::value_type >('\0')))))
            {
                it.m_imp->dir_entry.replace_filename_with_status(filename, file_stat, symlink_file_stat);
                return;
            }
        }
    }
    catch (std::bad_alloc&)
    {
        if (!ec)
            throw;

        it.m_imp.reset();
        *ec = make_error_code(system::errc::not_enough_memory);
    }
}

//--------------------------------------------------------------------------------------//
//                                                                                      //