Why does this integer division yield 0?

Question

Could someone tell me why the following code is outputting 0 at the marked line?

It seems as if everything is correct but then when I try to get the re

Answer 1

In short: Integer division truncates

You need the following:

double timeLapseInterval = (double) totalLengthSecs / (double)totalFrames;
printf("\ntimeLapseInterval : %f \n", timeLapseInterval);