diff options
Diffstat (limited to 'src/utils/is_one_of.hpp')
| -rw-r--r-- | src/utils/is_one_of.hpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/utils/is_one_of.hpp b/src/utils/is_one_of.hpp index c706421..4d6770e 100644 --- a/src/utils/is_one_of.hpp +++ b/src/utils/is_one_of.hpp @@ -3,12 +3,15 @@ #include <type_traits> template <typename...> -struct is_one_of { +struct is_one_of_implem { static constexpr bool value = false; }; template <typename F, typename S, typename... T> -struct is_one_of<F, S, T...> { +struct is_one_of_implem<F, S, T...> { static constexpr bool value = - std::is_same<F, S>::value || is_one_of<F, T...>::value; + std::is_same<F, S>::value || is_one_of_implem<F, T...>::value; }; + +template<typename... T> +constexpr bool is_one_of = is_one_of_implem<T...>::value; |