inverting positive CGFloat to negative value

Question

This might be a very dumb question, but if I have a CGFloat with value of 44.0, how do I make it to -44.0? I tried doing -myFloat and 0 - myFloat but it gives me 0. Why is this? Also I don't want a multiply by -1 answer

Answer 1

Its very simple dude. Just multiply it with -1.

i.e. 44.0 * -1 = -44.0

Update:

Solution 2 as mentioned by Inafziger

yourNo = 0 - yourNo

Answer 2

If myFloat is equal to 44.0, then the expression -myFloat will be evaluated as -44.0. You've got a bug somewhere else in your code. Can you post the expression where it "gives you 0"?

Using a clumsy workaround will just make your code harder to read and even worse to debug in the long run. Let's sort out the actual problem. :)

Answer 3

Okay, so you can't multiply by -1, how about:

myFloat = 0 - myFloat;

or

myFloat = myFloat - 2 * myFloat;