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