/* Copyright (c) 1979 Regents of the University of California */ static char sccsid[] = "@(#)RANDOM.c 1.4 1/10/83"; #include "h00vars.h" extern long RAND(); double RANDOM() { double d; long l; /* * calculate (1103515245 * seed) mod 2^31-1 */ d = 1103515245.0 * _seed / 2147483647.0; l = d; d = d - l; _seed = d * 2147483647.0; /* * want a value in the range 0..1 */ return(d); }