1 // RUN: %clang %s -S -emit-llvm -o - | grep -e "define linkonce_odr.*_ZlsR11std_ostreamRK8StreamerI3FooE" 2 // RUN: %clang_cc1 %s -DREDEFINE -verify 3 // PR8007: friend function not instantiated. 4 5 struct std_ostream 6 { 7 int dummy; 8 }; 9 10 std_ostream cout; 11 12 template <typename STRUCT_TYPE> 13 struct Streamer 14 { 15 friend std_ostream& operator << (std_ostream& o, const Streamer& f) // expected-error{{redefinition of 'operator<<'}} 16 { 17 Streamer s(f); 18 s(o); 19 return o; 20 } 21 22 Streamer(const STRUCT_TYPE& s) : s(s) {} 23 24 const STRUCT_TYPE& s; 25 void operator () (std_ostream&) const; 26 }; 27 28 typedef struct Foo {} Foo; 29 30 std_ostream& operator << (std_ostream&, const Streamer<Foo>&); 31 #ifdef REDEFINE 32 std_ostream& operator << (std_ostream& o, const Streamer<Foo>&) // expected-note{{is here}} 33 { 34 // Sema should flag this as a redefinition 35 return o; 36 } 37 #endif 38 39 template <> 40 void Streamer<Foo>::operator () (std_ostream& o) const // expected-note{{requested here}} 41 { 42 } 43 44 int main(void) 45 { 46 Foo foo; 47 cout << foo; 48 } 49
