IM2_MutableMatrix_row_2by2()

M2_bool IM2_MutableMatrix_row_2by2	(	MutableMatrix *	M,
		int	r1,
		int	r2,
		const RingElement *	a1,
		const RingElement *	a2,
		const RingElement *	b1,
		const RingElement *	b2,
		M2_bool	opposite_mult )

Definition at line 435 of file mutable-matrix.cpp.

{
  (void) opposite_mult;
  const Ring *R = M->get_ring();
  if (a1->get_ring() != R || a2->get_ring() != R || b1->get_ring() != R ||
      b2->get_ring() != R)
    {
      ERROR("expected elements in the same ring");
      return 0;
    }
  return M->row2by2(r1,
                    r2,
                    a1->get_value(),
                    a2->get_value(),
                    b1->get_value(),
                    b2->get_value());
}

References ERROR, MutableMatrix::get_ring(), RingElement::get_ring(), RingElement::get_value(), and MutableMatrix::row2by2().