ArgParser::oe_requiredParameter(param_arg_handler_t h, char const* name)
{
    OptionEntry oe;
    oe.parameter_needed = true;
    oe.parameter_name = name;
    oe.param_arg_handler = h;
    return oe;
}
ArgParser::oe_requiredParameter(param_arg_handler_t h, char const* name)
{
    OptionEntry oe;
    oe.parameter_needed = true;
    oe.parameter_name = name;
    oe.param_arg_handler = h;
    return oe;
}