15 AirportPair::AirportPair()
22 AirportPair::AirportPair (
const AirportPair& iAirportPair)
23 : _key (iAirportPair.getKey()), _parent (NULL) {
28 AirportPair::AirportPair (
const Key_T& iKey)
29 : _key (iKey), _parent (NULL) {
38 std::ostringstream oStr;