step()

int PfaffianComputation::step ( )

private

Definition at line 27 of file pfaff.cpp.

{
  if (done) return COMP_DONE;
 
  ring_elem r = calc_pfaff();
  if (!R->is_zero(r))
    pfaffs.append(R->make_vec(0, r));
  else
    R->remove(r);
 
  if (Subsets::increment(M->n_cols(), p, row_set)) return COMP_COMPUTING;
 
  // Otherwise, we are at the end.
  done = true;
  return COMP_DONE;
}

References calc_pfaff(), COMP_COMPUTING, COMP_DONE, done, Subsets::increment(), M, p, pfaffs, R, and row_set.

Referenced by calc().