xref: /original-bsd/usr.bin/f77/libF77/r_sign.c (revision 3b6250d9)
1 /*-
2  * Copyright (c) 1980 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.proprietary.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)r_sign.c	5.3 (Berkeley) 04/12/91";
10 #endif /* not lint */
11 
12 float r_sign(a,b)
13 float *a, *b;
14 {
15 float x;
16 x = (*a >= 0 ? *a : - *a);
17 return( *b >= 0 ? x : -x);
18 }
19