How to detect where NaN is passing to CoreGraphics API on Mac OS X 10.9

Question

I have very large graphic Mac app and now I receive a lot of the following messages in Console on 10.9 GM.

: Error: this application, or a library i         


        

Answer 1

I found the problem. It's dividing by zero at some point that leads to NSAffineTransform with NaN elements in the matrix. For some reasons compiler and OS passed this situation before 10.9.