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 // <array>
11 
12 // void swap(array& a);
13 
14 #include <array>
15 #include <cassert>
16 
17 #include "../suppress_array_warnings.h"
18 
main()19 int main()
20 {
21     {
22         typedef double T;
23         typedef std::array<T, 3> C;
24         C c1 = {1, 2, 3.5};
25         C c2 = {4, 5, 6.5};
26         c1.swap(c2);
27         assert(c1.size() == 3);
28         assert(c1[0] == 4);
29         assert(c1[1] == 5);
30         assert(c1[2] == 6.5);
31         assert(c2.size() == 3);
32         assert(c2[0] == 1);
33         assert(c2[1] == 2);
34         assert(c2[2] == 3.5);
35     }
36     {
37         typedef double T;
38         typedef std::array<T, 0> C;
39         C c1 = {};
40         C c2 = {};
41         c1.swap(c2);
42         assert(c1.size() == 0);
43         assert(c2.size() == 0);
44     }
45 }
46