How to return NaN?

[Robinow, David]

 It's a bit more than slightly off topic.

Try http://groups.google.com/groups?hl=en&lr=&safe=off&group=comp.lang.c

-----Original Message-----
From: Underwood, Jonathan [mailto:Jonathan.Underwood@nrc.ca]
Subject: How to return NaN?
Sorry for the slightly off topic question, but i was wondering how best to
have a function of type double return NaN in C. I'm using the cygwin
environment for developement (so gcc), but am looking for the most portable
solution.

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