1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 // This is not well-formed C++ but used to crash in sema. 4 5 template <class T> 6 struct X { 7 template <class U> 8 struct A { // expected-note {{not-yet-instantiated member is declared here}} 9 template <class V> 10 struct B { 11 template <class W> 12 struct C { 13 template <class X> 14 struct D { 15 template <class Y> 16 struct E { 17 template <class Z> 18 void operator+=(Z); 19 }; 20 }; 21 }; 22 }; 23 }; 24 25 template <class U> 26 template <class V> 27 template <class W> 28 template <class X> 29 template <class Y> 30 template <class Z> 31 friend void A<U>::template B<V>::template C<W>::template D<X>::template E<Y>::operator+=(Z); // expected-warning {{not supported}} expected-error {{no member 'A' in 'X<int>'; it has not yet been instantiated}} 32 }; 33 34 void test() { 35 X<int>::A<int>::B<int>::C<int>::D<int>::E<int>() += 1.0; // expected-note {{in instantiation of template class 'X<int>' requested here}} 36 } 37
