93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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struct Outer {
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struct Inner {
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int intfield;
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};
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};
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struct Base {
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void base_member();
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typedef int Int;
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Int typedeffed_member();
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};
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struct Derived : public Base {
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};
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int myglobal;
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void global_function();
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extern "C" {
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void global_c_function();
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}
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class A {
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class AInner {
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};
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friend class PreDeclared;
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friend class Outer::Inner;
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friend int Outer::Inner::intfield; // expected-error {{friends can only be classes or functions}}
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friend int Outer::Inner::missing_field; //expected-error {{friends can only be classes or functions}}
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friend int myoperation(float); // okay
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friend int myglobal; // expected-error {{friends can only be classes or functions}}
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friend void global_function();
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friend void global_c_function();
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friend class UndeclaredSoFar;
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UndeclaredSoFar x; // expected-error {{unknown type name 'UndeclaredSoFar'}}
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void a_member();
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friend void A::a_member();
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#if __cplusplus <= 199711L
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// expected-error@-2 {{friends cannot be members of the declaring class}}
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#endif
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friend void a_member(); // okay (because we ignore class scopes when looking up friends)
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friend class A::AInner; // this is okay as an extension
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friend class AInner; // okay, refers to ::AInner
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friend void Derived::missing_member(); // expected-error {{friend declaration of 'missing_member' does not match any declaration in 'Derived'}}
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friend void Derived::base_member(); // expected-error {{friend declaration of 'base_member' does not match any declaration in 'Derived'}}
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friend int Base::typedeffed_member(); // okay: should look through typedef
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// These test that the friend is properly not being treated as a
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// member function.
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friend A operator|(const A& l, const A& r); // okay
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friend A operator|(const A& r); // expected-error {{overloaded 'operator|' must be a binary operator (has 1 parameter)}}
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friend operator bool() const; // expected-error {{must use a qualified name when declaring a conversion operator as a friend}} \
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// expected-error{{non-member function cannot have 'const' qualifier}}
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typedef void ftypedef();
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friend ftypedef typedeffed_function; // okay (because it's not declared as a member)
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class facet;
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friend class facet; // should not assert
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class facet {};
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friend int Unknown::thing(); // expected-error {{use of undeclared identifier}}
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friend int friendfunc(), Unknown::thing(); // expected-error {{use of undeclared identifier}}
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friend int friendfunc(), Unknown::thing() : 4; // expected-error {{use of undeclared identifier}}
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};
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A::UndeclaredSoFar y; // expected-error {{no type named 'UndeclaredSoFar' in 'A'}}
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class PreDeclared;
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int myoperation(float f) {
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return (int) f;
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}
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template <typename T>
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class B {
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template <typename U>
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friend B<U>() {} // expected-error {{must use a qualified name when declaring a constructor as a friend}}
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};
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