VP1Trig::Logger Node1 VP1Trig::Logger - m_lvl + Logger() + Logger() + ~Logger() + log_info() + log_warning() + log_verbose() + log_error() + log_fatal() + log_debug() + prefix() + qstr() + qstr() + pfx1() + pfx2() + pfx3() Node2 std::string Node2->Node1 -m_name Node3 std::basic_string< char > Node3->Node2