Date: Mon, 2 Feb 1998 19:24:06 -0800 (PST) From: Thomas Dean <tomdean@ix.netcom.com> To: bartol@salk.edu Cc: freebsd-questions@FreeBSD.ORG, mika@sdna2.ucsd.edu Subject: Re: IEEE Floating Point question: Inf and NaN Message-ID: <199802030324.TAA20244@ix.netcom.com> In-Reply-To: <Pine.BSF.3.96.980202161523.23575G-100000@dale.salk.edu> (message from Tom Bartol on Mon, 2 Feb 1998 16:33:30 -0800 (PST))
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What are you using to compile your code?
What version of FreeBSD are you running?
What is your cpu?
I tried:
#include <stdio.h>
#include <math.h>
main()
{
double x, y, z;
x = 1.0;
y = 0.0;
z = x/y;
printf("1/0 z = %f\n",z);
x = 0.0;
y = 0.0;
z = x/y;
printf("0/0 z = %f\n",z);
}
cc -O2 -m486 -pipe xx.c -o xx
xx
1/0 z = Inf
0/0 z = NaN
cc -v
gcc version 2.7.2.1
uname -a
FreeBSD celebris 3.0-CURRENT FreeBSD 3.0-CURRENT #0: \
Sun Feb 1 19:58:49 PST 1998 \
root@celebris:/usr/src/sys/compile/CELEBRIS-SMP i386
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