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From: j@narcisa.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Behaviour of math functions
Date: 24 Apr 1995 13:14:22 +0200
Organization: Private U**x site, Dresden.
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Message-ID: <3ng16e$j7j@bonnie.tcd-dresden.de>
References: <D7ApIA.M3@rob1.hobby.nl>
Reply-To: joerg_wunsch@uriah.heep.sax.de
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Rob Jacobs <root@rob1.hobby.nl> wrote:
>In FreeBSD 2.0, domain errors in math functions (e.g. acos()), result
>in reserved operands being produced which stop computation (SIGFPE).
>However, this behaviour is not expected by many applications (e.g. Tcl
>checks "errno" for a domain error after calling a math function, but
>it will never get there because of the SIGFPE).
Try
#include <machine/floatingpoint.h>
fpsetmask(0);
at the beginning of your program. This is a hack, but might work for
you.
--
cheers, J"org private: joerg_wunsch@uriah.heep.sax.de
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)