Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!rutgers!netsys!macomh!macom1!larry
From: larry@macom1.UUCP (Larry Taborek)
Newsgroups: comp.bugs.misc
Subject: Hummm, Altos compiler bug/feature?
Keywords: cc, Altos, 586, Floating point
Message-ID: <4874@macom1.UUCP>
Date: 1 Aug 89 21:06:11 GMT
Distribution: usa
Organization: CENTEL Federal Systems, Reston, VA. 22091-1506
Lines: 45

Ok guys and gals.

I have a Altos 586 computer running 3.1a version of Xenix.  In
using the standard compiler that comes with the development set,
I found that I can only do mathmatical operations on shorts and
integers.  Floats, longs and doubles do not work.  Example:

main()
{
   int a;
   long b;

   a=0;b=0;
   a++;
   printf("a = %d\n",a);
   a = a + 1;
   printf("a = %d\n",a);
   b++;
   printf("b = %d\n",b);
   b = b + 1;
   printf("b = %d\n",b);
}

When run returns:

a = 1
a = 2
b = 0
b = 0

By the way, by using the sizeof command, I find that shorts and
integers take 2 bytes, longs and floats take 4 bytes and doubles
take 8 bytes.

I have looked in the compiler options to find out if there are
any floating point options.  There arn't, or at least none
documented.  Now I figure that you HAVE to be able to do this, so
what am I doing wrong?

Larry
-- 
Larry Taborek	..!uunet!grebyn!macom1!larry	Centel Federal Systems
		larry@macom1.UUCP		11400 Commerce Park Drive
						Reston, VA 22091-1506
						703-758-7000