Question

i must be missing something, whats wrong with this?

float controlFrameRate = 1/60;

It should be assigning something like 0.0166666667 but its coming out 0.00000 etc. is visual studio just lying to me?

Answer 1

That is because 1/60 is an integer, which is 0 because integer division truncates. This is used to initialize the float, giving 0. You can fix it by making the RHS expression a float in the first place:

float controlFrameRate = 1.0f/60;

of

float controlFrameRate = 1/60.0f;

In C++, literals such as 1, 42 etc. are int, 1.0, 3.1416 are double, and the f in 1.0f makes the literal a float. Note that the f could have been omitted in the examples above. However, assigning a double to a float could be problematic if the double’s value goes beyond the range of a float.