xref: /original-bsd/usr.bin/f77/libF77/r_nint.c (revision c471a344)
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_nint.c	5.4 (Berkeley) 04/12/91";
10 #endif /* not lint */
11 
12 float flt_retval;
13 
14 float r_nint(x)
15 float *x;
16 {
17 double floor();
18 
19 flt_retval = (*x)>=0 ? floor(*x + .5) : -floor(.5 - *x);
20 return(flt_retval);
21 }
22