1 // RUN: %clang_cc1 -std=c++98 -fsyntax-only -verify %s 2 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 3 // RUN: %clang_cc1 -fsyntax-only -verify %s 4 5 struct B { 6 void f(char); 7 void g(char); 8 enum E { e }; 9 union { int x; }; 10 11 enum class EC { ec }; // expected-warning 0-1 {{C++11}} 12 13 void f2(char); 14 void g2(char); 15 enum E2 { e2 }; 16 union { int x2; }; 17 }; 18 19 class C { 20 int g(); 21 }; 22 23 struct D : B {}; 24 25 class D2 : public B { 26 using B::f; 27 using B::E; 28 using B::e; 29 using B::x; 30 using C::g; // expected-error{{using declaration refers into 'C::', which is not a base class of 'D2'}} 31 32 // These are valid in C++98 but not in C++11. 33 using D::f2; 34 using D::E2; 35 using D::e2; 36 using D::x2; 37 #if __cplusplus >= 201103L 38 // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}} 39 // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}} 40 // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}} 41 // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}} 42 #endif 43 44 using B::EC; 45 using B::EC::ec; // expected-error {{not a class}} expected-warning 0-1 {{C++11}} 46 }; 47 48 namespace test1 { 49 struct Base { 50 int foo(); 51 }; 52 53 struct Unrelated { 54 int foo(); 55 }; 56 57 struct Subclass : Base { 58 }; 59 60 namespace InnerNS { 61 int foo(); 62 } 63 64 struct B : Base { 65 }; 66 67 // We should be able to diagnose these without instantiation. 68 template <class T> struct C : Base { 69 using InnerNS::foo; // expected-error {{not a class}} 70 using Base::bar; // expected-error {{no member named 'bar'}} 71 using Unrelated::foo; // expected-error {{not a base class}} 72 73 // In C++98, it's hard to see that these are invalid, because indirect 74 // references to base class members are permitted. 75 using C::foo; 76 using Subclass::foo; 77 #if __cplusplus >= 201103L 78 // expected-error@-3 {{refers to its own class}} 79 // expected-error@-3 {{not a base class}} 80 #endif 81 }; 82 } 83
