how to create a function call with dynamic array as an input variable?

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Stanley Lai 2010.09.21 07:45

in MT4 normally is it define as follow

bool functionName(double variablename[,])

Rashid Umarov 2010.09.21 08:32 #1

See Function Call

Stanley Lai 2010.09.22 06:36 #2

have go thru the function call material, however it does not mention how to pass the dynamic array variable

the following code work fine in MT4

double AddArray(int X, arr[,])

{

return(arr[X,0] + arr[X,1]);

}

double arr[10,5]; // this create a 10 row n 5 column array

AddArray(0,arr);

however it will have compilation error in MT5

',' - unexpected token

MQL4 Learning Calling dll function that Update a struct in

Rashid Umarov 2010.09.22 07:30 #3

You should properly insert code. Here you are

//+------------------------------------------------------------------+
//|                                                TestArrayCall.mq5 |
//|                        Copyright 2010, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2010, MetaQuotes Software Corp."
#property link      "http://www.mql5.com"
#property version   "1.00"
//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
  {
//---
   double arr[][5]; 
   ArrayResize(arr,10); // this create a 10 row n 5 column array 
   AddArray(0,arr);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double AddArray(int X,double &arr[][5])
  {
   return(arr[X][0]+arr[X][1]);
  }
//+------------------------------------------------------------------+

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