1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 // libstdc++ 4.2.x contains a bug where a friend struct template 4 // declaration for std::tr1::__detail::_Map base has different 5 // template arguments than the real declaration. 6 7 // We no longer contain the hack to workaround the problem. Verify that 8 // std::tr1::__detail::Map_base is not a unique and special snowflake. 9 10 namespace std { namespace tr1 { namespace __detail { 11 template <typename _Key, typename _Value, typename _Ex, bool __unique, 12 // expected-note@-1{{previous template declaration}} 13 typename _Hashtable> 14 struct _Map_base {}; 15 } } } 16 17 namespace std { namespace tr1 { 18 template<typename T> 19 struct X1 { 20 template <typename _Key2, typename _Pair, typename _Hashtable> 21 // expected-error@-1{{too few template parameters}} 22 friend struct __detail::_Map_base; 23 }; 24 25 } } 26 27 std::tr1::X1<int> x1i; // expected-note{{in instantiation}} 28