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 // tuple& operator=(const tuple& u);
15 
16 // UNSUPPORTED: c++98, c++03
17 
18 #include <tuple>
19 #include <string>
20 #include <cassert>
21 
main()22 int main()
23 {
24     {
25         typedef std::tuple<> T;
26         T t0;
27         T t;
28         t = t0;
29     }
30     {
31         typedef std::tuple<int> T;
32         T t0(2);
33         T t;
34         t = t0;
35         assert(std::get<0>(t) == 2);
36     }
37     {
38         typedef std::tuple<int, char> T;
39         T t0(2, 'a');
40         T t;
41         t = t0;
42         assert(std::get<0>(t) == 2);
43         assert(std::get<1>(t) == 'a');
44     }
45     {
46         typedef std::tuple<int, char, std::string> T;
47         const T t0(2, 'a', "some text");
48         T t;
49         t = t0;
50         assert(std::get<0>(t) == 2);
51         assert(std::get<1>(t) == 'a');
52         assert(std::get<2>(t) == "some text");
53     }
54 }
55