Implement LWG 2770 - Make tuple_size<T> defined for all T git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@286779 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/tuple b/include/tuple index 9f6661f..251443e 100644 --- a/include/tuple +++ b/include/tuple
@@ -84,7 +84,7 @@ constexpr T make_from_tuple(Tuple&& t); // C++17 // 20.4.1.4, tuple helper classes: -template <class T> class tuple_size; // undefined +template <class T> class tuple_size; template <class... T> class tuple_size<tuple<T...>>; template <class T> constexpr size_t tuple_size_v = tuple_size<T>::value; // C++17
