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// UNSUPPORTED: c++98, c++03
11
12// <valarray>
13
14// template<class T> class valarray;
15
16// valarray& operator=(valarray&& v);
17
18#include <valarray>
19#include <cassert>
20#include <cstddef>
21
22int main()
23{
24    {
25        typedef int T;
26        T a[] = {1, 2, 3, 4, 5};
27        const unsigned N = sizeof(a)/sizeof(a[0]);
28        std::valarray<T> v(a, N);
29        std::valarray<T> v2;
30        v2 = std::move(v);
31        assert(v2.size() == N);
32        assert(v.size() == 0);
33        for (std::size_t i = 0; i < v2.size(); ++i)
34            assert(v2[i] == a[i]);
35    }
36    {
37        typedef double T;
38        T a[] = {1, 2.5, 3, 4.25, 5};
39        const unsigned N = sizeof(a)/sizeof(a[0]);
40        std::valarray<T> v(a, N);
41        std::valarray<T> v2;
42        v2 = std::move(v);
43        assert(v2.size() == N);
44        assert(v.size() == 0);
45        for (std::size_t i = 0; i < v2.size(); ++i)
46            assert(v2[i] == a[i]);
47    }
48    {
49        typedef std::valarray<double> T;
50        T a[] = {T(1), T(2), T(3), T(4), T(5)};
51        const unsigned N = sizeof(a)/sizeof(a[0]);
52        std::valarray<T> v(a, N);
53        std::valarray<T> v2(a, N-2);
54        v2 = std::move(v);
55        assert(v2.size() == N);
56        assert(v.size() == 0);
57        for (unsigned i = 0; i < N; ++i)
58        {
59            assert(v2[i].size() == a[i].size());
60            for (std::size_t j = 0; j < a[i].size(); ++j)
61                assert(v2[i][j] == a[i][j]);
62        }
63    }
64}
65