const_Types.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <tuple>
11
12// template <class... Types> class tuple;
13
14// explicit tuple(const T&...);
15
16#include <tuple>
17#include <string>
18#include <cassert>
19
20int main()
21{
22    {
23        std::tuple<int> t(2);
24        assert(std::get<0>(t) == 2);
25    }
26    {
27        std::tuple<int, char*> t(2, 0);
28        assert(std::get<0>(t) == 2);
29        assert(std::get<1>(t) == nullptr);
30    }
31    {
32        std::tuple<int, char*> t(2, nullptr);
33        assert(std::get<0>(t) == 2);
34        assert(std::get<1>(t) == nullptr);
35    }
36    {
37        std::tuple<int, char*, std::string> t(2, nullptr, "text");
38        assert(std::get<0>(t) == 2);
39        assert(std::get<1>(t) == nullptr);
40        assert(std::get<2>(t) == "text");
41    }
42    // extensions
43    {
44        std::tuple<int, char*, std::string> t(2);
45        assert(std::get<0>(t) == 2);
46        assert(std::get<1>(t) == nullptr);
47        assert(std::get<2>(t) == "");
48    }
49    {
50        std::tuple<int, char*, std::string> t(2, nullptr);
51        assert(std::get<0>(t) == 2);
52        assert(std::get<1>(t) == nullptr);
53        assert(std::get<2>(t) == "");
54    }
55    {
56        std::tuple<int, char*, std::string, double> t(2, nullptr, "text");
57        assert(std::get<0>(t) == 2);
58        assert(std::get<1>(t) == nullptr);
59        assert(std::get<2>(t) == "text");
60        assert(std::get<3>(t) == 0.0);
61    }
62}
63