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// RUN: %clang_cc1 -fsyntax-only -verify %s struct S { S (S); // expected-error {{copy constructor must pass its first argument by reference}} }; S f(); void g() { S a( f() ); } namespace PR6064 { struct A { A() { } inline A(A&, int); }; A::A(A&, int = 0) { } void f() { A const a; A b(a); } }