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 // <valarray>
10 
11 // template <class T> class slice_array
12 
13 // void operator=(const value_type& x) const;
14 
15 #include <valarray>
16 #include <cassert>
17 
18 int main()
19 {
20     int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
21     std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0]));
22     v1[std::slice(1, 5, 3)] = 20;
23     assert(v1.size() == 16);
24     assert(v1[ 0] ==  0);
25     assert(v1[ 1] == 20);
26     assert(v1[ 2] ==  2);
27     assert(v1[ 3] ==  3);
28     assert(v1[ 4] == 20);
29     assert(v1[ 5] ==  5);
30     assert(v1[ 6] ==  6);
31     assert(v1[ 7] == 20);
32     assert(v1[ 8] ==  8);
33     assert(v1[ 9] ==  9);
34     assert(v1[10] == 20);
35     assert(v1[11] == 11);
36     assert(v1[12] == 12);
37     assert(v1[13] == 20);
38     assert(v1[14] == 14);
39     assert(v1[15] == 15);
40 }
41