Path: utzoo!attcan!uunet!convex!convex.COM
From: macphee@convex.COM (Scott C. Mac Phee)
Newsgroups: comp.lang.c
Subject: Re: IsUnsigned() function?
Message-ID: <104086@convex.convex.com>
Date: 19 Jul 90 13:18:47 GMT
References: <1990Jul16.214155.5087@Neon.Stanford.EDU> <3539@sactoh0.UUCP>
Sender: news@convex.com
Reply-To: macphee@convex.COM (Scott C. Mac Phee)
Organization: Convex Computer Corporation; Richardson, TX
Lines: 16

I would think what we are really looking for is :

 o Assume (always) that the type we are checking is of type int.

int
IsUnsigned(x)
unsigned x ;
{
	return(x&(1<<(sizeof(int)-1))) ;
}

Scott

Convex Computer Corporation
...uunet!convex!macphee
(214) 497-4772