1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03
10
11// <valarray>
12
13// template<class T> class valarray;
14
15// valarray& operator=(valarray&& v);
16
17#include <valarray>
18#include <cassert>
19#include <cstddef>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 {
26 typedef int T;
27 T a[] = {1, 2, 3, 4, 5};
28 const unsigned N = sizeof(a)/sizeof(a[0]);
29 std::valarray<T> v(a, N);
30 std::valarray<T> v2;
31 v2 = std::move(v);
32 assert(v2.size() == N);
33 assert(v.size() == 0);
34 for (std::size_t i = 0; i < v2.size(); ++i)
35 assert(v2[i] == a[i]);
36 }
37 {
38 typedef double T;
39 T a[] = {1, 2.5, 3, 4.25, 5};
40 const unsigned N = sizeof(a)/sizeof(a[0]);
41 std::valarray<T> v(a, N);
42 std::valarray<T> v2;
43 v2 = std::move(v);
44 assert(v2.size() == N);
45 assert(v.size() == 0);
46 for (std::size_t i = 0; i < v2.size(); ++i)
47 assert(v2[i] == a[i]);
48 }
49 {
50 typedef std::valarray<double> T;
51 T a[] = {T(1), T(2), T(3), T(4), T(5)};
52 const unsigned N = sizeof(a)/sizeof(a[0]);
53 std::valarray<T> v(a, N);
54 std::valarray<T> v2(a, N-2);
55 v2 = std::move(v);
56 assert(v2.size() == N);
57 assert(v.size() == 0);
58 for (unsigned i = 0; i < N; ++i)
59 {
60 assert(v2[i].size() == a[i].size());
61 for (std::size_t j = 0; j < a[i].size(); ++j)
62 assert(v2[i][j] == a[i][j]);
63 }
64 }
65
66 return 0;
67}
68

source code of libcxx/test/std/numerics/numarray/template.valarray/valarray.assign/move_assign.pass.cpp