Defining NaN as 0

Question

Whenever NaN is returned, I would like for the value returned to instead be 0. What is the best way to go about achieving this end?

Can you explain more of the context you need to do this? It's too open-ended right now. — Mysticial, Jan 17 '13 at 02:25
relevant http://stackoverflow.com/questions/570669/checking-if-a-double-or-float-is-nan-in-c — Aziz, Jan 17 '13 at 02:26

score 7 · Accepted Answer · answered Jan 17 '13 at 02:26

7

You can use this function

float zero_nan(float n)
{
  return n == n ? n : 0;
}

you can inline the function and wrap any return values you think may be nans.

answered Jan 17 '13 at 02:26

1 Answers1