How to find bar index for ertain datetime?

[marcovth]

Hello ...

 Is there a function that finds the (closest) bar-index for a certain given datetime?

Thanks.  

[Simon Gniadkowski]

marcovth:

Hello ...

 Is there a function that finds the (closest) bar-index for a certain given datetime?

Thanks.  

iBarShift() in mql4 but I don't believe there is an equivalent in mql5, use the search and have a look.

[marcovth]

Thanks ...

 https://www.mql5.com/en/articles/81

int iBarShiftMQL4(string symbol,
                  int tf,
                  datetime time,
                  bool exact=false)
  {
   if(time<0) return(-1);
   ENUM_TIMEFRAMES timeframe=TFMigrate(tf);
   datetime Arr[],time1;
   CopyTime(symbol,timeframe,0,1,Arr);
   time1=Arr[0];
   if(CopyTime(symbol,timeframe,time,time1,Arr)>0)
     {
      if(ArraySize(Arr)>2) return(ArraySize(Arr)-1);
      if(time<time1) return(1);
      else return(0);
     }
   else return(-1);
  }