Bug 8029 – Untyped delegate literal and template issue

The compiler doesn't seem to be able to infer the type for a delegate literal which is used as an argument to a function template inside a class template. struct Test(T) { void run(U)(U delegate(T) dg) {} } void main() { Test!string test; test.run((p) { return 12; }); // test.run(p => 12); // This also fails } error : undefined identifier T, did you mean template to(T)? error : template Test!(string).Test.run does not match any function template declaration error : template Test!(string).Test.run(U) cannot deduce template function from argument types !()(void)

*** This issue has been marked as a duplicate of issue 9393 ***