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From: | norm AT dad DOT org |
Message-Id: | <200201150045.QAA04280@dad.dad.org> |
cc: | cygwin AT cygwin DOT com, "Steven C. Bankes" <steve AT virgil DOT evolvinglogic DOT com>, |
"Steven C. Bankes" <stevebankes AT yahoo DOT com>, | |
"Nathaniel Anagnostou" <nateana AT pacbell DOT net> | |
Subject: | Re: Need help Accessing a NAN |
In-reply-to: | Your message of "Mon, 14 Jan 2002 10:14:14 PST." |
<200201141814 DOT KAA21325 AT dad DOT dad DOT org> | |
Reply-To: | norm AT dad DOT org |
cc: | norm AT dad DOT org |
Date: | Mon, 14 Jan 2002 16:45:36 -0800 |
norm AT dad DOT dad DOT org writes: >Under Linux I do: > >include <math.h> >... >reciprocal=NAN; > > >When I try to compile this under cygwin, gcc complains that NAN is undefined. > >Under cygwin, "man nan", tells me about a function named nan(), also using math.h. >When I try to use it, gcc complains about an implicit declaration of nan(). I solved this problem myself. Albeit very inelegantly inline double nan() { # ifdef NAN return NAN; #else double x=0.0; return 0/x; #endif } Norman Shapiro 798 Barron Avenue Palo Alto CA 94306-3109 (650) 565-8215 norm AT dad DOT org -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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