Question

The following code is returning an unexpected (and wrong value).

x1 = ceil(ceil(ceil(100*1.0f)*1.0f)*1.1f);

It is returning 111 not 110. I am aware that multiplying a number by 1 is pointless, but those 1’s are not always ones. When they are other values the function works as expected.

Answer 1

Using the ceilf operator fixed it for me:

float x1 = ceilf(ceilf(ceilf(100*1.0f)*1.0f)*1.1f);
NSLog(@"%f",x1); // 110