anchor.diff:  
     {$IFDEF WDC}
     if CACHE_DELIVERY_BIDS then
  -  begin
       fSerfToOfferCache.Add(BidKey, aSerfBidValue);
  -  end;
     {$ENDIF}
   end;
   
  
positive.code: 
      if fOfferToDemandCache.TryGetValue(BidKey, OfferToDemandCache) then
      begin
        Result := (OfferToDemandCache = NOT_REACHABLE_DEST_VALUE);
        if not Result then
          aBidBasicValue := NOT_REACHABLE_DEST_VALUE
        else
  
negative.code:     if fSerfToOfferCache.TryGetValue(BidKey, CachedBid) then
      begin
        aSerfBidValue := aSerfBidValue + CachedBid;
        Result := (aSerfBidValue <> NOT_REACHABLE_DEST_VALUE);
        Exit;
      end;
    end;
  