diff options
| -rw-r--r-- | src/mongo/stdx/type_traits.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mongo/stdx/type_traits.h b/src/mongo/stdx/type_traits.h index 9fc95279b98..40503382d96 100644 --- a/src/mongo/stdx/type_traits.h +++ b/src/mongo/stdx/type_traits.h @@ -52,5 +52,31 @@ using enable_if_t = typename std::enable_if<B, T>::type; } // namespace stdx } // namespace mongo +#endif + +#if __cplusplus >= 201703 + +namespace mongo { +namespace stdx { + +using std::void_t; + +} // namespace stdx +} // namespace mongo +#elif __cplusplus >= 201402 + +namespace mongo { +namespace stdx { + +template <typename...> +struct make_void { + using type = void; +}; + +template <typename... Args> +using void_t = typename make_void<Args...>::type; + +} // namespace stdx +} // namespace mongo #endif |