1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <tuple> 11 12 // template <class... Types> class tuple; 13 14 // constexpr tuple(); 15 16 #include <tuple> 17 #include <string> 18 #include <cassert> 19 20 #include "DefaultOnly.h" 21 22 int main() 23 { 24 { 25 std::tuple<> t; 26 } 27 { 28 std::tuple<int> t; 29 assert(std::get<0>(t) == 0); 30 } 31 { 32 std::tuple<int, char*> t; 33 assert(std::get<0>(t) == 0); 34 assert(std::get<1>(t) == nullptr); 35 } 36 { 37 std::tuple<int, char*, std::string> t; 38 assert(std::get<0>(t) == 0); 39 assert(std::get<1>(t) == nullptr); 40 assert(std::get<2>(t) == ""); 41 } 42 { 43 std::tuple<int, char*, std::string, DefaultOnly> t; 44 assert(std::get<0>(t) == 0); 45 assert(std::get<1>(t) == nullptr); 46 assert(std::get<2>(t) == ""); 47 assert(std::get<3>(t) == DefaultOnly()); 48 } 49 #ifndef _LIBCPP_HAS_NO_CONSTEXPR 50 { 51 constexpr std::tuple<> t; 52 } 53 { 54 constexpr std::tuple<int> t; 55 assert(std::get<0>(t) == 0); 56 } 57 { 58 constexpr std::tuple<int, char*> t; 59 assert(std::get<0>(t) == 0); 60 assert(std::get<1>(t) == nullptr); 61 } 62 #endif 63 } 64
