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 Alloc, class U1, class U2>
15 //   tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&&);
16 
17 #include <tuple>
18 #include <utility>
19 #include <memory>
20 #include <cassert>
21 
22 #include "allocators.h"
23 #include "../alloc_first.h"
24 #include "../alloc_last.h"
25 
26 struct B
27 {
28     int id_;
29 
30     explicit B(int i) : id_(i) {}
31 
32     virtual ~B() {}
33 };
34 
35 struct D
36     : B
37 {
38     explicit D(int i) : B(i) {}
39 };
40 
41 int main()
42 {
43     {
44         typedef std::pair<int, std::unique_ptr<D>> T0;
45         typedef std::tuple<alloc_first, std::unique_ptr<B>> T1;
46         T0 t0(2, std::unique_ptr<D>(new D(3)));
47         alloc_first::allocator_constructed = false;
48         T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
49         assert(alloc_first::allocator_constructed);
50         assert(std::get<0>(t1) == 2);
51         assert(std::get<1>(t1)->id_ == 3);
52     }
53 }
54