How to check the current bar is fully completed

The "current bar", bar index 0, is never complete.

If it is, then it has become bar 1, and a new and incomplete current bar has started.

int intPos, counted_bars=IndicatorCounted();
//----
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- the last counted bar will be recounted
if(counted_bars>0) counted_bars--;

intPos = Bars-counted_bars-1;

while (intPos>=0)

{

if (intPos != 0)

{

//calculate value

}

intPos--

}

Is the above code correct ?

Depending on what is in //calculate value, it might work for you.