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
19int 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