Question

Math.Ceiling returns double because double may store much bigger numbers.
However if i’m sure that int type is capable to store the result how should I convert? Is it safe to cast (int) Math.Ceiling(... ?

Answer 1

If you are sure that you do not cross the capacity of int, it should be perfectly safe to do

int myInt = (int)Math.Ceiling(...);

If you are not sure about the bound, you could go with long instead of int.