1// RUN: %clang_cc1 -fsyntax-only %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. Clang has an 6// egregious hack to work around this problem, since we can't modify 7// all of the world's libstdc++'s. 8 9namespace std { namespace tr1 { namespace __detail { 10 template<typename _Key, typename _Value, typename _Ex, bool __unique, 11 typename _Hashtable> 12 struct _Map_base { }; 13 14} } } 15 16namespace std { namespace tr1 { 17 template<typename T> 18 struct X1 { 19 template<typename _Key2, typename _Pair, typename _Hashtable> 20 friend struct __detail::_Map_base; 21 }; 22 23} } 24 25std::tr1::X1<int> x1i; 26