On Fri, May 1, 2009 at 4:33 AM, Egor Pasko <[email protected]> wrote:
> // Non-zero and non-NaN equality checking.
> if (float1 == float2 && (0.0f != float1 || 0.0f != float2)) {
> return 0;
> }
Would the following be a useful and safe improvement over the above?:
if (float1 == float2 && 0.0f != (float1 + float2)) {
I think this would save at least one test and branch. I'm not an
IEEE754 expert, but I think that, given that the two floats are ==,
the second test could only be true if they are both zeroes.
-dan
