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From: pmk@craycos.com (Peter Klausler)
Newsgroups: comp.lang.c
Subject: Re: IsUnsigned() function?
Message-ID: <1990Jul20.222412.7669@craycos.com>
Date: 20 Jul 90 22:24:12 GMT
Organization: Cray Computer Corporation
Lines: 11

macphee@convex.COM proposes:
> int
> IsUnsigned(x)
> unsigned x ;
> {
> 	return(x&(1<<(sizeof(int)-1))) ;
> }

From this code I can conclude that Convex uses a 1-bit character set and that
a sign bit of 1 indicates a positive value, not a negative one. Amazing what's
being done in hardware these days, no?