clang/test/CXX/class.access/class.friend/p6.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 void f1();
   4
   5 struct X {
   6   void f2();
   7 };
   8
   9 struct Y {
  10   friend void ::f1() { } // expected-error{{friend function definition cannot be qualified with '::'}}
  11   friend void X::f2() { } // expected-error{{friend function definition cannot be qualified with 'X::'}}
  12 };
  13
  14 template <typename T> struct Z {
  15   friend void T::f() {} // expected-error{{friend function definition cannot be qualified with 'T::'}}
  16 };
  17
  18 void local() {
  19   void f();
  20
  21   struct Local {
  22     friend void f() { } // expected-error{{friend function cannot be defined in a local class}}
  23   };
  24 }
  25
  26 template<typename T> void f3(T);
  27
  28 namespace N {
  29   template<typename T> void f4(T);
  30 }
  31
  32 template<typename T> struct A {
  33   friend void f3(T) {}
  34   friend void f3<T>(T) {} // expected-error{{friend function specialization cannot be defined}}
  35   friend void N::f4(T) {} // expected-error{{friend function definition cannot be qualified with 'N::'}}
  36   friend void N::f4<T>(T) {} // expected-error{{friend function definition cannot be qualified with 'N::'}}
  37 };