1 /*
2  * This software is copyrighted as noted below.  It may be freely copied,
3  * modified, and redistributed, provided that the copyright notice is
4  * preserved on all copies.
5  *
6  * There is no warranty or other guarantee of fitness for this software,
7  * it is provided solely "as is".  Bug reports or fixes may be sent
8  * to the author, who may or may not act on them as he desires.
9  *
10  * You may not include this software in a program or other software product
11  * without supplying the source, or without informing the end-user that the
12  * source is available for no extra charge.
13  *
14  * If you modify this software, you should include a notice giving the
15  * name of the person performing the modification, the date of modification,
16  * and the reason for such modification.
17  */
18 /* round.h, 7/2/85, T. McCollough, UU */
19 
20 /* need <math.h> */
21 
22 #define round(x)		(int) floor((x)+0.5)
23 
24 /* use round_positive() only if argument is positive */
25 
26 #ifdef vax
27 				/* if we are on a vax, then
28 				make use of the fact that
29 				vaxen truncate when they
30 				convert from float (double)
31 				to int */
32 
33 #define round_positive(x)	(int) ((x)+0.5)
34 #else
35 				/* we're not on a vax, so make
36 				no such assumption */
37 
38 #define round_positive(x)	round(x)
39 #endif
40