================
@@ -2596,6 +2596,15 @@ template <typename T> using has_sizeof =
decltype(sizeof(T));
template <typename T>
constexpr bool is_incomplete_v = !is_detected<detail::has_sizeof, T>::value;
+//===----------------------------------------------------------------------===//
+// Extra additions to <variant>
+//===----------------------------------------------------------------------===//
+
+template <class... Ts> struct overloaded : Ts... {
+ using Ts::operator()...;
+};
+template <class... Ts> overloaded(Ts...) -> overloaded<Ts...>;
+
----------------
Bigcheese wrote:
I just played around with it in [compiler
explorer](https://godbolt.org/z/c7baxEjWP) and I'm not sure why it was
implemented that way. Aggregate initialization just does the right thing. It
does require using `{}` instead of `()` (until C++20), but I think that's the
only difference. I'll just remove it from this patch and if we want to change
makeVisitor that can happen separately.
https://github.com/llvm/llvm-project/pull/119740
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