1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 2 3 // Test parsing + semantic analysis 4 template<typename ...Types> struct count_types { 5 static const unsigned value = sizeof...(Types); 6 }; 7 8 template<int ...Values> struct count_ints { 9 static const unsigned value = sizeof...(Values); 10 }; 11 12 // Test instantiation 13 int check_types[count_types<short, int, long>::value == 3? 1 : -1]; 14 int check_ints[count_ints<1, 2, 3, 4, 5>::value == 5? 1 : -1]; 15 16 // Test instantiation involving function parameter packs. 17 struct any { 18 template<typename T> any(T); 19 }; 20 21 template<typename ...Inits> 22 void init_me(Inits ...inits) { 23 any array[sizeof...(inits)] = { inits... }; 24 } 25 26 template void init_me<int, float, double*>(int, float, double*); 27 28 // Test parser and semantic recovery. 29 template<int Value> struct count_ints_2 { 30 static const unsigned value = sizeof...(Value); // expected-error{{'Value' does not refer to the name of a parameter pack}} 31 }; 32 33 template<typename ...Types> // expected-note{{parameter pack 'Types' declared here}} 34 struct count_types_2 { 35 static const unsigned value = sizeof... Type; // expected-error{{missing parentheses around the size of parameter pack 'Type'}} \ 36 // expected-error{{Type' does not refer to the name of a parameter pack; did you mean 'Types'?}} 37 }; 38 39
