Add copyright

[unix-history] / usr / src / games / trek / ranf.c

/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
static char sccsid[] = "@(#)ranf.c      5.1 (Berkeley) %G%";
#endif not lint

# include       <stdio.h>

ranf(max)
int     max;
{
       register int    t;

       if (max <= 0)
               return (0);
       t = rand() >> 5;
       return (t % max);
}


double franf()
{
       double          t;
       t = rand() & 077777;
       return (t / 32767.0);
}