diff options
Diffstat (limited to 'boost/math/special_functions/detail/bessel_i1.hpp')
| -rw-r--r-- | boost/math/special_functions/detail/bessel_i1.hpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/boost/math/special_functions/detail/bessel_i1.hpp b/boost/math/special_functions/detail/bessel_i1.hpp index aa4596cfd4..47f1b79883 100644 --- a/boost/math/special_functions/detail/bessel_i1.hpp +++ b/boost/math/special_functions/detail/bessel_i1.hpp @@ -21,8 +21,39 @@ namespace boost { namespace math { namespace detail{ template <typename T> +T bessel_i1(T x); + +template <class T> +struct bessel_i1_initializer +{ + struct init + { + init() + { + do_init(); + } + static void do_init() + { + bessel_i1(T(1)); + } + void force_instantiate()const{} + }; + static const init initializer; + static void force_instantiate() + { + initializer.force_instantiate(); + } +}; + +template <class T> +const typename bessel_i1_initializer<T>::init bessel_i1_initializer<T>::initializer; + +template <typename T> T bessel_i1(T x) { + + bessel_i1_initializer<T>::force_instantiate(); + static const T P1[] = { static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.4577180278143463643e+15)), static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.7732037840791591320e+14)), |