int QSdelete_setcols (QSprob p, int *flags)

Use this function to delete a set of variables (columns) from an existing LP problem, specifying the variables as an array of flags, with a 0 entry indicating that a variable should not be deleted and a 1 entry indicated that a variable should be deleted.

/* 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);
}