/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* @(#)d_dim.c 5.1 6/7/85
*/
double d_dim(a,b)
double *a, *b;
{
return( *a > *b ? *a - *b : 0);
}