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
28 struct B
29 {
30 int id_;
31
BB32 explicit B(int i) : id_(i) {}
33
~BB34 virtual ~B() {}
35 };
36
37 struct D
38 : B
39 {
DD40 explicit D(int i) : B(i) {}
41 };
42
43 struct Explicit {
44 int value;
ExplicitExplicit45 explicit Explicit(int x) : value(x) {}
46 };
47
48 struct Implicit {
49 int value;
ImplicitImplicit50 Implicit(int x) : value(x) {}
51 };
52
main()53 int 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