- typedef mpl::int_<0> bessel_no_int_tag; // No integer optimisation possible.
- typedef mpl::int_<1> bessel_maybe_int_tag; // Maybe integer optimisation.
- typedef mpl::int_<2> bessel_int_tag; // Definite integer optimistaion.
+ typedef boost::integral_constant<int, 0> bessel_no_int_tag; // No integer optimisation possible.
+ typedef boost::integral_constant<int, 1> bessel_maybe_int_tag; // Maybe integer optimisation.
+ typedef boost::integral_constant<int, 2> bessel_int_tag; // Definite integer optimisation.