1 // PR c++/94546
2 // { dg-do compile { target c++20 } }
3 
forward(T && t)4 template <class T> T&& forward(T&& t) { return static_cast<T&&>(t); }
5 
6 template <class X>
test(X && plot)7 void test(X&& plot)
8 {
9     // Note: For brevity, this lambda function is only
10     // defined, not called nor assigned to a variable.
11     // Doing those things won't fix the error.
12     [&]<class... T>(T&&... rest)
13     {
14         plot(forward<T>(rest)...);
15     };
16 }
main()17 int main()
18 {
19     auto Plot = [](auto&&...)
20     {
21     };
22     test(Plot);
23 }
24