// PR c++/62101 // { dg-do compile { target c++11 } } struct X { friend void g(X, int) = 0; // { dg-error "15:initializer specified for friend function" } friend void g(X, int) = default; // { dg-error "cannot be defaulted" } // { dg-prune-output "note" } friend void f(X, int) = delete; friend void f(X, double) {} }; struct Y; void g(Y, int); void g(Y, double); struct Y { // { dg-prune-output "note" } friend void g(Y, int) = delete; // { dg-error "not first declaration" } friend void g(Y, double) {} }; int main() { X x; f(x, 5.0); f(x, 5); // { dg-error "use of deleted function" } Y y; g(y, 5.0); g(y, 5); // { dg-error "use of deleted function" } }