Error "Acces Violation Read to 0x0001F5D0"
You choose number of elements to be zero and try to access shift=1.
iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,1));
So I have noticed that this error will come only if I pass the array by ref. If I use the function and call that array inside function, it will not give any erros.
// it will give error on EA removal double EMA_H(double &array[]){ return( iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,1)); } // this way it will not give error double EMA_C(){ return( iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,1)); }
But 2nd version of this function it means that I have to wright this funtion for every single array.
Kindly advice why do I get this error?
So I have noticed that this error will come only if I pass the array by ref. If I use the function and call that array inside function, it will not give any erros.
But 2nd version of this function it means that I have to wright this funtion for every single array.
Kindly advice why do I get this error?
Market closed now. I backtested this code and there was no problem.
void OnTick() { double array[]={1,2,3,4}; EMA_H(array); } int InpMAPeriod=10; double EMA_H(double &array[]){ return( iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,1)); }
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Set the array to as-series before populating it with values, so onArray knows how to process it.
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void OnTick() { double array[]={1,2,3,4}; EMA_H(array); } int InpMAPeriod=10; double EMA_H(double &array[]){ return( iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,1)); }
Remember, you need at least InpMAPeriod elements for a InpMAPeriod average.
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Don't hard code constants, use the proper symbols. WHOLE_ARRAY
So I have noticed that this error will come only if I pass the array by ref. If I use the function and call that array inside function, it will not give any erros.
But 2nd version of this function it means that I have to wright this funtion for every single array.
Kindly advice why do I get this error?
Can you provide full code that compiles to reproduce this issue ?
Hello,
This is the code
#define HeikaAshi "Indicators\\Heiken Ashi.ex4" #resource "\\" + HeikaAshi input int InpMAPeriod = 21 ; // Heik EMA Period input ENUM_TIMEFRAMES InpHeikTimeframe = PERIOD_D1 ; // HeikoNashi Timeframe //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ //---Global Variables int ArrayIndex =30 ; // PriceArraySize double D_heike_array[]; double cur_heike_array[]; int magic; //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ double EMA_H(double &array[],int shift) { return(iMAOnArray(array,0,InpMAPeriod,0,MODE_EMA,shift)); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ int OnInit() { FillArrays(InpHeikTimeframe,ArrayIndex,D_heike_array); FillArrays(_Period,ArrayIndex,cur_heike_array); EventSetTimer(2); //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ void FillArrays(int periods,int sArrayIndex,double &array[]) { ArraySetAsSeries(array,true); for(int i=0; i<sArrayIndex; i++) { ArrayResize(array,i+1); array[i]= iCustom(_Symbol,periods,"::"+HeikaAshi,3,i); } } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- EventKillTimer(); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { double ma=EMA_H(cur_heike_array,1); double ma_d = EMA_H(D_heike_array,1); Print("MA=",ma); Print("ma=",ma_d); } void OnTimer() { } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+
But now I get this errors :
2023.08.06 07:12:15.460 Access violation read to 0x1C04D7FD 2023.08.06 07:13:23.243 Access violation read to 0x1C04D7FA 2023.08.06 07:14:42.815 Access violation read to 0x1C04D7FA 2023.08.06 07:16:44.102 Access violation read to 0x0001FB48 2023.08.06 15:49:41.265 Access violation read to 0x0001506C in 'C:\Users\danie\AppData\Roaming\MetaQuotes\Terminal\B8925BF731C22E88F33C7A8D7CD3190E\MQL4\Experts\Test\Heien_Ashi_EA.ex4' 2023.08.06 15:51:09.473 Access violation read to 0x0001506C in 'C:\Users\danie\AppData\Roaming\MetaQuotes\Terminal\B8925BF731C22E88F33C7A8D7CD3190E\MQL4\Experts\Test\Heien_Ashi_EA.ex4' 2023.08.06 15:51:38.812 Access violation read to 0x0001506C in 'C:\Users\danie\AppData\Roaming\MetaQuotes\Terminal\B8925BF731C22E88F33C7A8D7CD3190E\MQL4\Experts\Test\Heien_Ashi_EA.ex4'
Thank you
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Hello! I am getting this error when I close the EA . ("Acces Violation Read to 0x0001F5D0")
It is only coming when I use iMAOnArray funtion.
Any ideas?
Thanks!