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// UNSUPPORTED: c++98, c++03
18
19#include <tuple>
20#include <utility>
21#include <memory>
22#include <cassert>
23
24#include "allocators.h"
25#include "../alloc_first.h"
26#include "../alloc_last.h"
27
28struct B
29{
30    int id_;
31
32    explicit B(int i) : id_(i) {}
33
34    virtual ~B() {}
35};
36
37struct D
38    : B
39{
40    explicit D(int i) : B(i) {}
41};
42
43int main()
44{
45    {
46        typedef std::pair<int, std::unique_ptr<D>> T0;
47        typedef std::tuple<alloc_first, std::unique_ptr<B>> T1;
48        T0 t0(2, std::unique_ptr<D>(new D(3)));
49        alloc_first::allocator_constructed = false;
50        T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
51        assert(alloc_first::allocator_constructed);
52        assert(std::get<0>(t1) == 2);
53        assert(std::get<1>(t1)->id_ == 3);
54    }
55}
56