xref: /original-bsd/lib/libc/quad/ucmpdi2.c (revision c3e32dec)
1 /*-
2  * Copyright (c) 1992, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This software was developed by the Computer Systems Engineering group
6  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
7  * contributed to Berkeley.
8  *
9  * %sccs.include.redist.c%
10  */
11 
12 #if defined(LIBC_SCCS) && !defined(lint)
13 static char sccsid[] = "@(#)ucmpdi2.c	8.1 (Berkeley) 06/04/93";
14 #endif /* LIBC_SCCS and not lint */
15 
16 #include "quad.h"
17 
18 /*
19  * Return 0, 1, or 2 as a <, =, > b respectively.
20  * Neither a nor b are considered signed.
21  */
22 int
23 __ucmpdi2(a, b)
24 	u_quad_t a, b;
25 {
26 	union uu aa, bb;
27 
28 	aa.uq = a;
29 	bb.uq = b;
30 	return (aa.ul[H] < bb.ul[H] ? 0 : aa.ul[H] > bb.ul[H] ? 2 :
31 	    aa.ul[L] < bb.ul[L] ? 0 : aa.ul[L] > bb.ul[L] ? 2 : 1);
32 }
33