Function "TrailingStop" is not referenced and will be removed from exp-file

//+------------------------------------------------------------------+
//|                                               Moving Average.mq4 |
//|                      Copyright © 2005, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#define MAGICMA  20050610

extern double Lots               = 0.1;
extern double MaximumRisk        = 0.02;
extern double DecreaseFactor     = 3;
extern int     iTakeProfit    = 100;
extern int     iTrailingStop  = 35;
extern int     iStopLoss      = 30;
extern int     iMagicNumber   = 12444;

//+------------------------------------------------------------------+
//| Calculate open positions                                         |
//+------------------------------------------------------------------+
int CalculateCurrentOrders(string symbol)
  {
   int buys=0,sells=0;
//----
   for(int i=0;i<OrdersTotal();i++)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==MAGICMA)
        {
         if(OrderType()==OP_BUY)  buys++;
         if(OrderType()==OP_SELL) sells++;
        }
     }
//---- return orders volume
   if(buys>0) return(buys);
   else       return(-sells);
  }
//+------------------------------------------------------------------+
//| Calculate optimal lot size                                       |
//+------------------------------------------------------------------+
double LotsOptimized()
  {
   double lot=Lots;
   int    orders=HistoryTotal();     // history orders total
   int    losses=0;                  // number of losses orders without a break
//---- select lot size
   lot=NormalizeDouble(AccountFreeMargin()*MaximumRisk/1000.0,1);
//---- calcuulate number of losses orders without a break
   if(DecreaseFactor>0)
     {
      for(int i=orders-1;i>=0;i--)
        {
         if(OrderSelect(i,SELECT_BY_POS,MODE_HISTORY)==false) { Print("Error in history!"); break; }
         if(OrderSymbol()!=Symbol() || OrderType()>OP_SELL) continue;
         //----
         if(OrderProfit()>0) break;
         if(OrderProfit()<0) losses++;
        }
      if(losses>1) lot=NormalizeDouble(lot-lot*losses/DecreaseFactor,1);
     }
//---- return lot size
   if(lot<0.1) lot=0.1;
   return(lot);
  }
  
  //---- trailin stop
void TrailingStop(int iTotal){

   int iCount;
   
   if(iTrailingStop < 1)return(-1); // error
   
   for(iCount=0;iCount<iTotal;iCount++){

      OrderSelect(iCount, SELECT_BY_POS, MODE_TRADES);
      if(OrderSymbol()==Symbol() && OrderMagicNumber() == iMagicNumber)
         switch(OrderType()){
            case OP_BUY:
               if(Bid-OrderOpenPrice()>Point*iTrailingStop){
                  if(OrderStopLoss()<Bid-Point*iTrailingStop){
                     OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Point*iTrailingStop,OrderTakeProfit(),0,Green);
                  }
               }
               break;
            case OP_SELL:
               if((OrderOpenPrice()-Ask)>(Point*iTrailingStop)){
                  if((OrderStopLoss()>(Ask+Point*iTrailingStop)) || (OrderStopLoss()==0)){
                     OrderModify(OrderTicket(),OrderOpenPrice(),Ask+Point*iTrailingStop,OrderTakeProfit(),0,Red);
                  }
               }
               break;
         }
      }
   
      return(0);
}
//+------------------------------------------------------------------+
//| Check for open order conditions                                  |
//+------------------------------------------------------------------+
void CheckForOpen()
  {
   double ma5,ma10,v1;
   int    res;
//---- go trading only for first tiks of new bar
   if(Volume[0]>1) return;
//---- get Moving Average 
  
    
   
      
   // get the current prices for each moving average
   ma5= iMA(NULL,0,12,0,MODE_EMA,PRICE_CLOSE,0);
   ma10=iMA(NULL,0,100,0,MODE_EMA,PRICE_CLOSE,0);
   v1=iRSI (NULL, 0,14, PRICE_MEDIAN, 0);
//---- sell conditions
   if(ma5<ma10 && v1<50)  
     {
      res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,Ask+iStopLoss*Point,Bid-iTakeProfit*Point,"",MAGICMA,0,Red);
      return;
     }
//---- buy conditions
   if( ma5>ma10 && v1>50)  
     {
      res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,Bid-iStopLoss*Point,Ask+iTakeProfit*Point,"",MAGICMA,0,Blue);
      return;
     }
//----
  }
//+------------------------------------------------------------------+
//| Check for close order conditions                                 |
//+------------------------------------------------------------------+
void CheckForClose()
  {
    double ma5,ma10,v1;
//---- go trading only for first tiks of new bar
   if(Volume[0]>1) return;
//---- get Moving Average 
    ma5= iMA(NULL,0,12,0,MODE_EMA,PRICE_CLOSE,0);
   ma10=iMA(NULL,0,100,0,MODE_EMA,PRICE_CLOSE,0);
   v1=iRSI (NULL, 0,14, PRICE_MEDIAN, 0);
//----
   for(int i=0;i<OrdersTotal();i++)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false)        break;
      if(OrderMagicNumber()!=MAGICMA || OrderSymbol()!=Symbol()) continue;
      //---- check order type 
      if(OrderType()==OP_BUY)
        {
         if(ma5 < ma10) OrderClose(OrderTicket(),OrderLots(),Bid,3,White);
         break;
        }
      if(OrderType()==OP_SELL)
        {
         if(ma5>ma10) OrderClose(OrderTicket(),OrderLots(),Ask,3,White);
         break;
        }
     }
//----
  }
//+------------------------------------------------------------------+
//| Start function                                                   |
//+------------------------------------------------------------------+
void start()
  {
//---- check for history and trading
   if(Bars<100 || IsTradeAllowed()==false) return;
//---- calculate open orders by current symbol
   if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
   else                                    CheckForClose();
//----
  }
//+------------------------------------------------------------------+