Please help with "int start()" structure - I want to process bars left to right

Hi - I'm new to MQL4 and am a bit confused.

This code processes each bar starting from the right side (bar 0) and works bar by bar towards the left side.
+++++++++++++++++++++++++++++++++++++++++
int start()
{
int limit;
int counted_bars=IndicatorCounted();
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;

for (int i = 0; i<limit; i++)
{
body etc etc
body etc etc
}
return(0);
}
+++++++++++++++++++++++++++++++++++++++

What code should I use if I want to process the left-hand most bar first and then work bar by bar towards the right??

Thankyou for your help.

for (int i = limit; i>=0; i--){


}

There are some subtle things going on that you need to be aware of. Processing from right to left means that most bars are left untouched once processed. This lessens the "repaint" condition and saves on processing. If you reverse this and do it left to right, you will introduce those problems.

So, its not as easy as just reversing the loop and decrementing the loop counter. I haven't done what you are proposing and I don't think I have seen any code. I guess you are on your own.

Thank you - both

leledc - yes this works fine for what I want.

CodeMeister - glad you pointed that out - I will have to consider that.

Thankyou

I remembered something else. Usually the value of limit is 1, so processing from left to right or the other way wouldn't matter. It is larger (usually = Bars) when changing from one TF to another.

I'm glad...