The TacanList Class

public:

        //---------------------------------------------------------------
        // Local Type Definitions
        //---------------------------------------------------------------

        enum StationSet {X, Y, NumSets};                // Tacan Stations are numbered 1 - 126 and are grouped in two sets X and Y band.

        enum Domain {AA, AG, NumDomains};

        struct TacanCampStr
        {
                int                     channel;
                StationSet      set;
                short           campaignID;
                int                     callsign;
        };

        struct LinkedCampStationStr
        {
               LinkedCampStationStr    *p_next;
                TacanCampStr                    *p_station;
        };

        struct LinkedTacanVUStr
        {
               LinkedTacanVUStr*       p_next;
                LinkedTacanVUStr*       p_previous;
                int                                     channel;
                StationSet                     set;
                Domain                          domain;
               VU_ID                                   vuID;
        };

private:
        //---------------------------------------------------------------
        // Airbase File Data
        //---------------------------------------------------------------

        TacanCampStr            **mpCampList;                                                                   // List Sorted By CampId
        int                                     mCampListTally;                                                         // Total Num of airbases

        //---------------------------------------------------------------
        // THE Dynamically Assigned Tanker/Carrier List
        //---------------------------------------------------------------
        LinkedTacanVUStr        *mpAssigned;    // All Tacans will be in Y band
        LinkedTacanVUStr        *mpRetired;             // All Tacans will be in Y band
        int                                     mLastUnused;    // Valid Numbers 126 ... 70

        //---------------------------------------------------------------
        // THE Airbase TACAN LIST
        //---------------------------------------------------------------

        LinkedTacanVUStr        *mpTList;

        //---------------------------------------------------------------
        // Initialization Functions for Airbase List
        //---------------------------------------------------------------

        BOOL StoreStation(LinkedCampStationStr**, short, int, StationSet, int);         // Used by the class only during initialization, operates upon mpCampList
        void ResolveStationList(LinkedCampStationStr**, TacanCampStr***, int);  // Used by the class only during initialization, operates upon mpCampList
        friend int SearchForChannel(void*, void**);                                                                             // Compare function for bsearch routine

        //---------------------------------------------------------------
        // Utility Functions for Airbase List
        //---------------------------------------------------------------

        BOOL GetChannelFromCampID(int*, StationSet*, short);                                                                   // Looks up channel given the CampID, operates upon mpCampList
        BOOL GetPointerFromVUID(LinkedTacanVUStr*, VU_ID, LinkedTacanVUStr**, LinkedTacanVUStr**);      // Used for searching for a particular VU_ID, returns a pointer to the entry.
        void InsertIntoTacanList(LinkedTacanVUStr**, LinkedTacanVUStr**, VU_ID, int, StationSet, Domain);       // Used by AddTacan for inserting tacan stations into mpTList

        //---------------------------------------------------------------
        // Utility Functions for Dynamically Assigned List
        //---------------------------------------------------------------

        void                                    InitDynamicChans(void);
        void                                    CleanupDynamicChans(void);
        int                                     AssignChannel(VU_ID, Domain);           // Get the next retired tacan number, otherwise create one from the mLastUnused value
        void                                    RetireChannel(VU_ID);                           // Move the channel from the Assigned list into the retired list

public:

        //---------------------------------------------------------------
        // Run Time Functions
        //---------------------------------------------------------------

        void AddTacan(CampBaseClass *);                                                                                                         // Add a tacan station to the list
        void RemoveTacan(VU_ID, int);                                                                                 // Remove a tacan station from the list

        BOOL GetVUIDFromChannel(VU_ID*, int, StationSet, Domain);                                       // Given the channel and band, we can get the VU_ID of a tacan station
        BOOL GetVUIDFromLocation(VU_ID*, float, float, Domain);                                         // Works for airbases only.  Find the closest tacan to this point
        BOOL GetChannelFromVUID(VU_ID, int*, StationSet*, Domain*);                                     // Works for airbases only.  Given a VU_ID, we can get the channel and band of a tacan station
        BOOL GetCallsignFromCampID(short campId, int*);                                 // Works for airbases only.  Given a campId, we can get the callsign of the respective objective, 0 if not found

        //---------------------------------------------------------------
        // Constructors and Destructors
        //---------------------------------------------------------------

        TacanList();
        ~TacanList();