1 // { dg-do compile { target c++20 } } 2 3 namespace std { 4 struct source_location { 5 static void __impl (); 6 }; 7 } 8 9 auto x = __builtin_source_location (); // { dg-error "'std::source_location::__impl\\(\\)' is not a type" } 10 // { dg-message "evaluating '__builtin_source_location'" "" { target *-*-* } .-1 } 11