diff options
Diffstat (limited to 'boost/math/special_functions/detail/bessel_k0.hpp')
-rw-r--r-- | boost/math/special_functions/detail/bessel_k0.hpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/boost/math/special_functions/detail/bessel_k0.hpp b/boost/math/special_functions/detail/bessel_k0.hpp index 81407dab10..e209168e87 100644 --- a/boost/math/special_functions/detail/bessel_k0.hpp +++ b/boost/math/special_functions/detail/bessel_k0.hpp @@ -22,10 +22,40 @@ namespace boost { namespace math { namespace detail{ template <typename T, typename Policy> +T bessel_k0(T x, const Policy&); + +template <class T, class Policy> +struct bessel_k0_initializer +{ + struct init + { + init() + { + do_init(); + } + static void do_init() + { + bessel_k0(T(1), Policy()); + } + void force_instantiate()const{} + }; + static const init initializer; + static void force_instantiate() + { + initializer.force_instantiate(); + } +}; + +template <class T, class Policy> +const typename bessel_k0_initializer<T, Policy>::init bessel_k0_initializer<T, Policy>::initializer; + +template <typename T, typename Policy> T bessel_k0(T x, const Policy& pol) { BOOST_MATH_INSTRUMENT_CODE(x); + bessel_k0_initializer<T, Policy>::force_instantiate(); + static const T P1[] = { static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 2.4708152720399552679e+03)), static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.9169059852270512312e+03)), |