alloc.pass.cpp revision ebedffde9adff4b56d3ccf6adcee8dc092404f0e 
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>
15//   tuple(allocator_arg_t, const Alloc& a);
16
17#include <tuple>
18#include <cassert>
19
20#include "DefaultOnly.h"
21#include "allocators.h"
22#include "../alloc_first.h"
23#include "../alloc_last.h"
24
25int main()
26{
27    {
28        std::tuple<> t(std::allocator_arg, A1<int>());
29    }
30    {
31        std::tuple<int> t(std::allocator_arg, A1<int>());
32        assert(std::get<0>(t) == 0);
33    }
34    {
35        std::tuple<DefaultOnly> t(std::allocator_arg, A1<int>());
36        assert(std::get<0>(t) == DefaultOnly());
37    }
38    {
39        assert(!alloc_first::allocator_constructed);
40        std::tuple<alloc_first> t(std::allocator_arg, A1<int>(5));
41        assert(alloc_first::allocator_constructed);
42        assert(std::get<0>(t) == alloc_first());
43    }
44    {
45        assert(!alloc_last::allocator_constructed);
46        std::tuple<alloc_last> t(std::allocator_arg, A1<int>(5));
47        assert(alloc_last::allocator_constructed);
48        assert(std::get<0>(t) == alloc_last());
49    }
50    {
51        alloc_first::allocator_constructed = false;
52        std::tuple<DefaultOnly, alloc_first> t(std::allocator_arg, A1<int>(5));
53        assert(std::get<0>(t) == DefaultOnly());
54        assert(alloc_first::allocator_constructed);
55        assert(std::get<1>(t) == alloc_first());
56    }
57    {
58        alloc_first::allocator_constructed = false;
59        alloc_last::allocator_constructed = false;
60        std::tuple<DefaultOnly, alloc_first, alloc_last> t(std::allocator_arg,
61                                                           A1<int>(5));
62        assert(std::get<0>(t) == DefaultOnly());
63        assert(alloc_first::allocator_constructed);
64        assert(std::get<1>(t) == alloc_first());
65        assert(alloc_last::allocator_constructed);
66        assert(std::get<2>(t) == alloc_last());
67    }
68    {
69        alloc_first::allocator_constructed = false;
70        alloc_last::allocator_constructed = false;
71        std::tuple<DefaultOnly, alloc_first, alloc_last> t(std::allocator_arg,
72                                                           A2<int>(5));
73        assert(std::get<0>(t) == DefaultOnly());
74        assert(!alloc_first::allocator_constructed);
75        assert(std::get<1>(t) == alloc_first());
76        assert(!alloc_last::allocator_constructed);
77        assert(std::get<2>(t) == alloc_last());
78    }
79}
80