1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc // rdar://12645424, crash due to a double-free 4*f4a2713aSLionel Sambuc 5*f4a2713aSLionel Sambuc template<typename _Tp> struct __add_lvalue_reference_helper {}; 6*f4a2713aSLionel Sambuc template<typename _Tp> struct add_lvalue_reference : __add_lvalue_reference_helper<_Tp> { 7*f4a2713aSLionel Sambuc typedef _Tp type; 8*f4a2713aSLionel Sambuc }; 9*f4a2713aSLionel Sambuc 10*f4a2713aSLionel Sambuc template<typename... Types> struct type_list; 11*f4a2713aSLionel Sambuc template<typename , template<typename> class... Funs> struct C; 12*f4a2713aSLionel Sambuc 13*f4a2713aSLionel Sambuc template<typename T> struct C<T> { 14*f4a2713aSLionel Sambuc typedef T type; 15*f4a2713aSLionel Sambuc }; 16*f4a2713aSLionel Sambuc 17*f4a2713aSLionel Sambuc template<typename T, template<typename> class Fun0, template<typename> class... Funs> struct C<T, Fun0, Funs...> { 18*f4a2713aSLionel Sambuc typedef typename C<typename Fun0<T>::type, Funs...>::type type; 19*f4a2713aSLionel Sambuc }; 20*f4a2713aSLionel Sambuc 21*f4a2713aSLionel Sambuc template<class , template<typename> class... Funs> struct tl_map; 22*f4a2713aSLionel Sambuc template<typename... Ts, template<typename> class... Funs> struct tl_map<type_list<Ts...>, Funs...> { 23*f4a2713aSLionel Sambuc typedef type_list<typename C<Ts, Funs...>::type...> type; 24*f4a2713aSLionel Sambuc }; 25*f4a2713aSLionel Sambuc 26*f4a2713aSLionel Sambuc template< class Pattern> struct F { 27*f4a2713aSLionel Sambuc typedef Pattern filtered_pattern; 28*f4a2713aSLionel Sambuc tl_map< filtered_pattern, add_lvalue_reference > type; 29*f4a2713aSLionel Sambuc }; 30*f4a2713aSLionel Sambuc 31*f4a2713aSLionel Sambuc template<class, class Pattern> struct get_case { 32*f4a2713aSLionel Sambuc F<Pattern> type; 33*f4a2713aSLionel Sambuc }; 34*f4a2713aSLionel Sambuc 35*f4a2713aSLionel Sambuc template<class Pattern> struct rvalue_builder { 36*f4a2713aSLionel Sambuc template<typename Expr> typename get_case<Expr, Pattern>::type operator>>(Expr ); // expected-note {{candidate template ignored}} 37*f4a2713aSLionel Sambuc }; 38*f4a2713aSLionel Sambuc 39*f4a2713aSLionel Sambuc template<typename Arg0> rvalue_builder< type_list<Arg0> > on(const Arg0& ) ; 40*f4a2713aSLionel Sambuc 41*f4a2713aSLionel Sambuc class Z { __anon5d9c37e60102null42*f4a2713aSLionel Sambuc int empty = on(0) >> [] {}; // expected-error {{invalid operands to binary expression}} 43*f4a2713aSLionel Sambuc }; 44