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 U1, class U2> tuple(pair<U1, U2>&& u); 15 16 #include <tuple> 17 #include <utility> 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::pair<double, std::unique_ptr<D>> T0; 40 typedef std::tuple<int, std::unique_ptr<B>> T1; 41 T0 t0(2.5, std::unique_ptr<D>(new D(3))); 42 T1 t1 = std::move(t0); 43 assert(std::get<0>(t1) == 2); 44 assert(std::get<1>(t1)->id_ == 3); 45 } 46 } 47