int QSdelete_setcols (QSprob p, int *flags)

/* Assume p is an initialized LP problem with 5 columns.  */
/* Use QSdelete_setcols() to remove columns 0, 2, and 4.  */

int rval;
int flags[5] = { 1, 0, 1, 0, 1 };

rval = QSdelete_setcols (p, flags);
if (rval) {
    fprintf (stderr,
             "QSdelete_setcols failed with return code %d\n", rval);
}