diff options
Diffstat (limited to 'boost/multiprecision/detail/functions/constants.hpp')
| -rw-r--r-- | boost/multiprecision/detail/functions/constants.hpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/boost/multiprecision/detail/functions/constants.hpp b/boost/multiprecision/detail/functions/constants.hpp index e0a2ff5fcf..48b4a5c29a 100644 --- a/boost/multiprecision/detail/functions/constants.hpp +++ b/boost/multiprecision/detail/functions/constants.hpp @@ -295,3 +295,20 @@ const T& get_constant_pi() return result; } +template <class T> +const T& get_constant_one_over_epsilon() +{ + static const bool is_init = false; + static T result; + if (is_init == false) + { + typedef typename mpl::front<typename T::unsigned_types>::type ui_type; + result = static_cast<ui_type>(1u); + eval_divide(result, std::numeric_limits<number<T> >::epsilon().backend()); + } + + constant_initializer<T, &get_constant_one_over_epsilon<T> >::do_nothing(); + + return result; +} + |