QUtil::utf8_to_ascii(std::string const& utf8, std::string& ascii,
                     char unknown_char)
{
    return transcode_utf8(utf8, ascii, e_ascii, unknown_char);
}
QUtil::utf8_to_ascii(std::string const& utf8, std::string& ascii,
                     char unknown_char)
{
    return transcode_utf8(utf8, ascii, e_ascii, unknown_char);
}