Efficiency of FindFirstBinAbove and FindLastBinAbove

ROOT
1

Hi, I am wondering about the efficiency of calling both FindFirstBinAbove and FindLastBinAbove for the same histogram & axis & threshold. I often use these functions to set a proper X range when I have a wider histogram than needed.

Is there anything to be gained from making a single function that finds both at the same time & returns e.g. an std::pair<int,int> or uses two output parameters?

Looking at the implementation, it looks like one searches forward and the other backwards, so maybe there is nothing to be gained, but maybe I am wrong.

Jean-François

2

Yes, in the current implantation there is noting to gain in a single function, apart from the cost of calling the function, which is negligible compare to the rest.

Lorenzo