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From: gl8f@astsun.astro.Virginia.EDU (Greg Lindahl)
Newsgroups: comp.unix.ultrix,comp.lang.fortran
Subject: Re: How to detect NaN's
Message-ID: <1991Jun1.002751.8318@murdoch.acc.Virginia.EDU>
Date: 1 Jun 91 00:27:51 GMT
References: <1991May30.204332.16506@litwin.com> <1991May31.130807@IASTATE.EDU>
Sender: usenet@murdoch.acc.Virginia.EDU
Organization: Department of Astronomy, University of Virginia
Lines: 16

In article <1991May31.130807@IASTATE.EDU> keinert@IASTATE.EDU (Keinert Fritz) writes:

>One of my biggest gripes with both the Sun and Mips Fortran compilers
>is that there is no easy way to turn on floating point exception
>handling.

It's fairly trivial under SunOS 4.X:

      subroutine initerrors
      integer n, ieee_handler, sigfpe_abort
      n = ieee_handler( 'set', 'common', SIGFPE_ABORT )
      return
      end

This produces nice crashes when you want them. Now if only IBM would
see the light...