int QSwrite_basis (QSprob p, QSbas B, const char *filename)
/* p is an initialized QSprob, a handle to an existing LP problem  */

int rval;

rval = QSwrite_basis (p, (QSbas) NULL, "binky.bas");
if (rval) {
    fprintf (stderr, 
             "Could not write the basis, error code %d\n", rval);
}