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// { dg-do assemble } // { dg-options "-Wreturn-type" } // GROUPS passed old-abort #include <iostream> class A { public: friend A f(A &a);// { dg-error "ambiguates" } }; A &f(A &a) {// { dg-error "new decl" } std::cout << "Blah\n"; } // { dg-warning "no return statement" }