On 22/07/2008, at 10:20 PM, Steven Hamilton wrote:
Hi folks,
Can anyone tell me the most efficient way to unsign a floatvalue in
an NSNumber?
Like change a -1.47 to 1.47 ?
Thanks
// Below reverses the sign of, in this case, a float
float y, x; y = x = -12.0;
y -= x * 2; // reverses the sign of x.
printf("y = %f\n", y); // y = 12.000000
I don't think there's a method on NSNumber which does it for you, so
obviously you'd need to extract the value from your NSNumber instance
and then use the new value in a new NSNumber.
HTH,
Ron
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