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Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!cornell!rochester!PT.CS.CMU.EDU!cadre!pitt!darth!formtek!ditka!csanta!greg
From: greg@csanta.UUCP (Greg Comeau)
Newsgroups: comp.lang.c,comp.sys.ibm.pc
Subject: Re: MATH Error in MS C 5.0
Message-ID: <123@csanta.UUCP>
Date: 9 Apr 88 04:26:15 GMT
References: <734@virginia.acc.virginia.edu>
Reply-To: greg@csanta.UUCP (Greg Comeau)
Distribution: na
Organization: Comeau Computing, Richmond Hill, NY
Lines: 11

In article <734@virginia.acc.virginia.edu> jap7g@psy3b2.psyc.Virginia.EDU (Jim A. Pisano) writes:
>I get the error:
>run-time error M6101:  MATH
>- floating-point error: invalid
>
>Here's my question: How can I find out where that NAN is?  I have CodeView,
>but I haven't figured out how to trap this math error short of checking 
>every variable everywhere.  Is there a way to set a tracepoint when the

You might be able to find out by using the signal() function so that
it traps SIGFPE and jumps to one of your routines.