int QSchange_bound (QSprob p, int indx, char lu, double bound)

/* Assume p is initialized to the problem in the QSload_prob example. */
/* Change the lower bound on variable y to 0.                         */

int rval;
rval = QSchange_bound (p, 1, 'L', 0.0);
if (rval) {
    fprintf (stderr, 
             "Could not change the bound, error code %d\n",rval);
}