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 // template <class... UTypes> tuple(tuple<UTypes...>&& u); 15 16 #include <tuple> 17 #include <string> 18 #include <memory> 19 #include <cassert> 20 21 struct B 22 { 23 int id_; 24 25 explicit B(int i) : id_(i) {} 26 27 virtual ~B() {} 28 }; 29 30 struct D 31 : B 32 { 33 explicit D(int i) : B(i) {} 34 }; 35 36 int main() 37 { 38 { 39 typedef std::tuple<double> T0; 40 typedef std::tuple<int> T1; 41 T0 t0(2.5); 42 T1 t1 = std::move(t0); 43 assert(std::get<0>(t1) == 2); 44 } 45 { 46 typedef std::tuple<double, char> T0; 47 typedef std::tuple<int, int> T1; 48 T0 t0(2.5, 'a'); 49 T1 t1 = std::move(t0); 50 assert(std::get<0>(t1) == 2); 51 assert(std::get<1>(t1) == int('a')); 52 } 53 { 54 typedef std::tuple<double, char, D> T0; 55 typedef std::tuple<int, int, B> T1; 56 T0 t0(2.5, 'a', D(3)); 57 T1 t1 = std::move(t0); 58 assert(std::get<0>(t1) == 2); 59 assert(std::get<1>(t1) == int('a')); 60 assert(std::get<2>(t1).id_ == 3); 61 } 62 { 63 D d(3); 64 typedef std::tuple<double, char, D&> T0; 65 typedef std::tuple<int, int, B&> T1; 66 T0 t0(2.5, 'a', d); 67 T1 t1 = std::move(t0); 68 d.id_ = 2; 69 assert(std::get<0>(t1) == 2); 70 assert(std::get<1>(t1) == int('a')); 71 assert(std::get<2>(t1).id_ == 2); 72 } 73 { 74 typedef std::tuple<double, char, std::unique_ptr<D>> T0; 75 typedef std::tuple<int, int, std::unique_ptr<B>> T1; 76 T0 t0(2.5, 'a', std::unique_ptr<D>(new D(3))); 77 T1 t1 = std::move(t0); 78 assert(std::get<0>(t1) == 2); 79 assert(std::get<1>(t1) == int('a')); 80 assert(std::get<2>(t1)->id_ == 3); 81 } 82 } 83
