error 4806

[justinmcridge]

CopyBuffer unexpected results!!

this seemingly sound code gives a reading error

 double CMyTemplate:: MACDGet(const int buffer, const int index)
     {
      double MACD_buffer[];
 ArraySetAsSeries(MACD_buffer,true);
//--- reset error code 
   ResetLastError();
//--- fill a part of the MACD array with values from the indicator buffer that has 0 index 
   if(!CopyBuffer(handle_MACD,buffer,index,1,MACD_buffer))
     {
      //--- if the copying fails, tell the error code 
      PrintFormat("Failed to copy data from the MACD indicator, error code %d",GetLastError());
      //--- quit with zero result - it means that the indicator is considered as not calculated 
      return(222.2);
     }
   return(MACD_buffer[0]);

 MACD  =432932703 

MACD Signal 1 =-816387384 

[William Roeder]

First, fix your broken code; CopyBuffer does not return a boolean. Your test will not show a failure.

[justinmcridge]

William Roeder:
First, fix your broken code; CopyBuffer does not return a boolean. Your test will not show a failure.

   double CMyClass::MACDGet(const int buffer, const int index)
     {
      double MACD_buffer[];
 ArraySetAsSeries(MACD_buffer,true);
//--- reset error code 
   ResetLastError();
//--- fill a part of the MACD array with values from the indicator buffer that has 0 index 
   if(CopyBuffer(handle_MACD,buffer,index,1,MACD_buffer)<0)
     {
      //--- if the copying fails, tell the error code 
      PrintFormat("Failed to copy data from the MACD indicator, error code %d",GetLastError());
      //--- quit with zero result - it means that the indicator is considered as not calculated 
      return(222);
     }
   return(MACD_buffer[0]);
  
  } 

it returns "int" ...sorry about that !

yet still returns the same error 4806

what perplexes me is that the same function if I take it outside the class performs correctly as expected.... 

I am using it in OnTick event ...I suspect the tick frequency has something to do with the error ! 

[William Roeder]

justinmcridge: yet still returns the same error 4806

You keep saying that, but your original code would not have printed anything, therefor your error must be elsewhere.

[Alain Verleyen]

Forum on trading, automated trading systems and testing trading strategies

strategy tester error

Alain Verleyen, 2020.04.23 03:11

That's a Justin Mcridge issue.

PrintFormat(" Point :%d",m_symbol.Point());

Read the documentation please. You are using %d all over to print double value. %d is for an INT !

Possible you have the same issue.

And even in your other topic https://www.mql5.com/en/forum/338056