83 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C++
		
	
	
	
// RUN: %clang_cc1 -std=c++98 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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struct B {
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  void f(char);
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  void g(char);
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  enum E { e };
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  union { int x; };
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  enum class EC { ec }; // expected-warning 0-1 {{C++11}}
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  void f2(char);
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  void g2(char);
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  enum E2 { e2 };
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  union { int x2; };
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};
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class C {
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  int g();
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};
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struct D : B {};
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class D2 : public B {
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  using B::f;
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  using B::E;
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  using B::e;
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  using B::x;
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  using C::g; // expected-error{{using declaration refers into 'C::', which is not a base class of 'D2'}}
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  // These are valid in C++98 but not in C++11.
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  using D::f2;
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  using D::E2;
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  using D::e2;
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  using D::x2;
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#if __cplusplus >= 201103L
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  // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}}
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  // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}}
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  // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}}
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  // expected-error@-5 {{using declaration refers into 'D::', which is not a base class of 'D2'}}
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#endif
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  using B::EC;
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  using B::EC::ec; // expected-error {{not a class}} expected-warning 0-1 {{C++11}}
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};
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namespace test1 {
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  struct Base {
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    int foo();
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  };
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  struct Unrelated {
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    int foo();
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  };
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  struct Subclass : Base {
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  };
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  namespace InnerNS {
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    int foo();
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  }
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  struct B : Base {
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  };
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  // We should be able to diagnose these without instantiation.
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  template <class T> struct C : Base {
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    using InnerNS::foo; // expected-error {{not a class}}
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    using Base::bar; // expected-error {{no member named 'bar'}}
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    using Unrelated::foo; // expected-error {{not a base class}}
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    // In C++98, it's hard to see that these are invalid, because indirect
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    // references to base class members are permitted.
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    using C::foo;
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    using Subclass::foo;
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#if __cplusplus >= 201103L
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    // expected-error@-3 {{refers to its own class}}
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    // expected-error@-3 {{not a base class}}
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#endif
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  };
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}
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