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... UTypes>
15//   tuple(allocator_arg_t, const Alloc& a, tuple<UTypes...>&&);
16
17// UNSUPPORTED: c++98, c++03
18
19#include <tuple>
20#include <string>
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
43struct Explicit {
44  int value;
45  explicit Explicit(int x) : value(x) {}
46};
47
48struct Implicit {
49  int value;
50  Implicit(int x) : value(x) {}
51};
52
53int main()
54{
55    {
56        typedef std::tuple<int> T0;
57        typedef std::tuple<alloc_first> T1;
58        T0 t0(2);
59        alloc_first::allocator_constructed = false;
60        T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
61        assert(alloc_first::allocator_constructed);
62        assert(std::get<0>(t1) == 2);
63    }
64    {
65        typedef std::tuple<std::unique_ptr<D>> T0;
66        typedef std::tuple<std::unique_ptr<B>> T1;
67        T0 t0(std::unique_ptr<D>(new D(3)));
68        T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
69        assert(std::get<0>(t1)->id_ == 3);
70    }
71    {
72        typedef std::tuple<int, std::unique_ptr<D>> T0;
73        typedef std::tuple<alloc_first, std::unique_ptr<B>> T1;
74        T0 t0(2, std::unique_ptr<D>(new D(3)));
75        alloc_first::allocator_constructed = false;
76        T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
77        assert(alloc_first::allocator_constructed);
78        assert(std::get<0>(t1) == 2);
79        assert(std::get<1>(t1)->id_ == 3);
80    }
81    {
82        typedef std::tuple<int, int, std::unique_ptr<D>> T0;
83        typedef std::tuple<alloc_last, alloc_first, std::unique_ptr<B>> T1;
84        T0 t0(1, 2, std::unique_ptr<D>(new D(3)));
85        alloc_first::allocator_constructed = false;
86        alloc_last::allocator_constructed = false;
87        T1 t1(std::allocator_arg, A1<int>(5), std::move(t0));
88        assert(alloc_first::allocator_constructed);
89        assert(alloc_last::allocator_constructed);
90        assert(std::get<0>(t1) == 1);
91        assert(std::get<1>(t1) == 2);
92        assert(std::get<2>(t1)->id_ == 3);
93    }
94    {
95        std::tuple<int> t1(42);
96        std::tuple<Explicit> t2{std::allocator_arg, std::allocator<void>{}, std::move(t1)};
97        assert(std::get<0>(t2).value == 42);
98    }
99    {
100        std::tuple<int> t1(42);
101        std::tuple<Implicit> t2 = {std::allocator_arg, std::allocator<void>{}, std::move(t1)};
102        assert(std::get<0>(t2).value == 42);
103    }
104}
105