1// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify 2 3// rdar://12645424, crash due to a double-free 4 5template<typename _Tp> struct __add_lvalue_reference_helper {}; 6template<typename _Tp> struct add_lvalue_reference : __add_lvalue_reference_helper<_Tp> { 7 typedef _Tp type; 8}; 9 10template<typename... Types> struct type_list; 11template<typename , template<typename> class... Funs> struct C; 12 13template<typename T> struct C<T> { 14 typedef T type; 15}; 16 17template<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 21template<class , template<typename> class... Funs> struct tl_map; 22template<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 26template< class Pattern> struct F { 27 typedef Pattern filtered_pattern; 28 tl_map< filtered_pattern, add_lvalue_reference > type; 29}; 30 31template<class, class Pattern> struct get_case { 32 F<Pattern> type; 33}; 34 35template<class Pattern> struct rvalue_builder { 36 template<typename Expr> typename get_case<Expr, Pattern>::type operator>>(Expr ); // expected-note {{candidate template ignored}} 37}; 38 39template<typename Arg0> rvalue_builder< type_list<Arg0> > on(const Arg0& ) ; 40 41class Z { 42 int empty = on(0) >> [] {}; // expected-error {{invalid operands to binary expression}} 43}; 44