84 lines
2.0 KiB
C++
84 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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public:
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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-warning {{a C++20 extension}} 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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