IM2_MutableMatrix_set_entry()

M2_bool IM2_MutableMatrix_set_entry	(	MutableMatrix *	M,
		int	r,
		int	c,
		const RingElement *	a )

Definition at line 247 of file mutable-matrix.cpp.

{
  const Ring *R = M->get_ring();
  if (R != a->get_ring())
    {
      ERROR("expected same ring");
      return 0;
    }
  if (r < 0 || r >= M->n_rows())
    {
      ERROR("row index %d out of range 0..%d", r, M->n_rows() - 1);
      return 0;
    }
  if (c < 0 || c >= M->n_cols())
    {
      ERROR("column index %d out of range 0..%d", c, M->n_cols() - 1);
      return 0;
    }
 
  M->set_entry(r, c, a->get_value());
  return 1;
}

References ERROR, MutableMatrix::get_ring(), RingElement::get_ring(), RingElement::get_value(), MutableMatrix::n_cols(), MutableMatrix::n_rows(), and MutableMatrix::set_entry().