hasinfNaN function

[Terry Duell]

Hello All,
I am trying to work with some public domain matlab code, but fall foul of  
a missing function, 'hasinfNaN'.
At first I assumed it was a standard matlab function, but references only  
turn up in a few sites that are unrelated to mathworks.
Has anyone seen this function, or aware of a description of it?
I am guessing that it checks for inf or NaN values in any matrix passed to  
it, but it may be more than that.

Cheres,
--
Regards,
Terry Duell