1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
2 
3 // rdar://12645424, crash due to a double-free
4 
5 template<typename _Tp> struct __add_lvalue_reference_helper {};
6 template<typename _Tp> struct add_lvalue_reference :  __add_lvalue_reference_helper<_Tp> {
7   typedef _Tp type;
8 };
9 
10 template<typename... Types> struct type_list;
11 template<typename , template<typename> class... Funs> struct C;
12 
13 template<typename T> struct C<T> {
14 	typedef T type;
15 };
16 
17 template<typename T, template<typename>  class Fun0, template<typename> class... Funs> struct C<T, Fun0, Funs...> {
18   typedef  typename C<typename Fun0<T>::type, Funs...>::type type;
19 };
20 
21 template<class , template<typename> class... Funs> struct tl_map;
22 template<typename... Ts, template<typename> class... Funs> struct tl_map<type_list<Ts...>, Funs...> {
23   typedef type_list<typename C<Ts, Funs...>::type...> type;
24 };
25 
26 template<   class Pattern> struct F {
27  typedef Pattern  filtered_pattern;
28   tl_map< filtered_pattern, add_lvalue_reference > type;
29 };
30 
31 template<class, class Pattern> struct get_case {
32   F<Pattern> type;
33 };
34 
35 template<class Pattern> struct rvalue_builder {
36   template<typename Expr> typename get_case<Expr, Pattern>::type operator>>(Expr ); // expected-note {{candidate template ignored}}
37 };
38 
39 template<typename Arg0> rvalue_builder< type_list<Arg0> > on(const Arg0& ) ;
40 
41 class Z {
__anond99a10c50102null42   int empty = on(0) >> [] {}; // expected-error {{invalid operands to binary expression}}
43 };
44