RE: [Dev-C++] Checking validity of float and double

[Ioannis V. <no...@ho...>]

What would be valid data for a float and how it would differ from the
random data stored in an unitialised one?
 
 
Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
<http://www.noicys.cjb.net/> 
* Alternative URL: http://run.to/noicys

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Glen
Corby
Sent: Friday, April 26, 2002 12:49 PM
To: dev...@li...
Subject: [Dev-C++] Checking validity of float and double


This isnt a dev-C++ specific question, but i am wondering if anyone
knows how you check if a float or double carrys valid data. 
 
My program runs fine most of the time but every now and again it spits
out -NaN.
I figure its from uninitialised variables, however I cant track down
where they enter the program without performing periodick checks at
suspect locations. 
 
So is there a function like 
    bool validFloat(float num)  for instance?