MatrixSorter()

MatrixSorter::MatrixSorter	(	const Matrix *	m,
		int	degorder,
		int	ringorder )

Definition at line 123 of file matrix-sort.cpp.

    : deg_ascending(degorder), ringorder_ascending(ringorder)
{
  R = m->get_ring();
 
  int nelems = m->n_cols();
 
  if (degorder != 0)
    {
      sort_degs = newarray_atomic(int, nelems);
      for (int i = 0; i < nelems; i++)
        sort_degs[i] = m->cols()->primary_degree(i);
    }
 
  result = M2_makearrayint(nelems);
 
  sort_vals = result->array;
  for (int i = 0; i < nelems; i++) sort_vals[i] = i;
 
  sort_vecs = newarray(vec, nelems);
  for (int i = 0; i < nelems; i++) sort_vecs[i] = m->elem(i);
}

References Matrix::cols(), deg_ascending, Matrix::elem(), Matrix::get_ring(), M2_makearrayint(), Matrix, Matrix::n_cols(), newarray, newarray_atomic, FreeModule::primary_degree(), R, result, ringorder_ascending, sort_degs, sort_vals, and sort_vecs.