3 * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
5 * This product is part of the Amsterdam Compiler Kit.
7 * Permission to use, sell, duplicate or disclose this software must be
8 * obtained in writing. Requests for such permissions may be sent to
10 * Dr. Andrew S. Tanenbaum
11 * Wiskundig Seminarium
19 double _rnd(r
) double r
; {
20 return(r
+ (r
<0 ? -0.5 : 0.5));