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1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3namespace A {4  class String; // expected-note {{target of using declaration}}5};6 7using A::String; // expected-note {{using declaration}}8class String; // expected-error {{conflicts with target of using declaration}}9 10union value {11char *String;12};13 14namespace UnambiguousStaticMemberTemplate {15  // A static member template is not ambiguous if found in multiple base class16  // subobjects.17  struct A { template<typename T> static void f(T); static void g(); };18  struct B : A { using A::f; using A::g; };19  struct C : A { using A::f; using A::g; };20  struct D : B, C {};21  void f(D d) { d.f(0); d.g(); }22}23 24namespace UnambiguousReorderedMembers {25  // Static members are not ambiguous if we find them in a different order in26  // multiple base classes.27  struct A { static void f(); };28  struct B { static void f(int); };29  struct C : A, B { using A::f; using B::f; }; // expected-note {{found}}30  struct D : B, A { using B::f; using A::f; };31  struct E : C, D {};32  void f(E e) { e.f(0); }33 34  // But a different declaration set in different base classes does result in ambiguity.35  struct X : B, A { using B::f; using A::f; static void f(int, int); }; // expected-note {{found}}36  struct Y : C, X {};37  void g(Y y) { y.f(0); } // expected-error {{found in multiple base classes of different types}}38}39