1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify 2 3 void print(); 4 5 template<typename T, typename... Ts> 6 void print(T first, Ts... rest) { 7 (void)first; 8 print(rest...); 9 } 10 11 template<typename... Ts> 12 void unexpanded_capture(Ts ...values) { 13 auto unexp = [values] {}; // expected-error{{initializer contains unexpanded parameter pack 'values'}} 14 } 15 16 template<typename... Ts> 17 void implicit_capture(Ts ...values) { 18 auto implicit = [&] { print(values...); }; 19 implicit(); 20 } 21 22 template<typename... Ts> 23 void do_print(Ts... values) { 24 auto bycopy = [values...]() { print(values...); }; 25 bycopy(); 26 auto byref = [&values...]() { print(values...); }; 27 byref(); 28 29 auto bycopy2 = [=]() { print(values...); }; 30 bycopy2(); 31 auto byref2 = [&]() { print(values...); }; 32 byref2(); 33 } 34 35 template void do_print(int, float, double); 36 37 template<typename T, int... Values> 38 void bogus_expansions(T x) { 39 auto l1 = [x...] {}; // expected-error{{pack expansion does not contain any unexpanded parameter packs}} 40 auto l2 = [Values...] {}; // expected-error{{'Values' in capture list does not name a variable}} 41 } 42 43 void g(int*, float*, double*); 44 45 template<class... Args> 46 void std_example(Args... args) { 47 auto lm = [&, args...] { return g(args...); }; 48 }; 49 50 template void std_example(int*, float*, double*); 51 52 template<typename ...Args> 53 void variadic_lambda(Args... args) { 54 auto lambda = [](Args... inner_args) { return g(inner_args...); }; 55 lambda(args...); 56 } 57 58 template void variadic_lambda(int*, float*, double*); 59