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