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=(const gslice_array<value_type>& ga);
15
16 #include <valarray>
17 #include <cassert>
18
main()19 int main()
20 {
21 int a[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
22 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
23 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
24 36, 37, 38, 39, 40};
25 std::valarray<int> v1(a, sizeof(a)/sizeof(a[0]));
26 std::size_t sz[] = {2, 4, 3};
27 std::size_t st[] = {19, 4, 1};
28 typedef std::valarray<std::size_t> sizes;
29 typedef std::valarray<std::size_t> strides;
30 std::valarray<int> v(24);
31 v = v1[std::gslice(3, sizes(sz, sizeof(sz)/sizeof(sz[0])),
32 strides(st, sizeof(st)/sizeof(st[0])))];
33 assert(v.size() == 24);
34 assert(v[ 0] == 3);
35 assert(v[ 1] == 4);
36 assert(v[ 2] == 5);
37 assert(v[ 3] == 7);
38 assert(v[ 4] == 8);
39 assert(v[ 5] == 9);
40 assert(v[ 6] == 11);
41 assert(v[ 7] == 12);
42 assert(v[ 8] == 13);
43 assert(v[ 9] == 15);
44 assert(v[10] == 16);
45 assert(v[11] == 17);
46 assert(v[12] == 22);
47 assert(v[13] == 23);
48 assert(v[14] == 24);
49 assert(v[15] == 26);
50 assert(v[16] == 27);
51 assert(v[17] == 28);
52 assert(v[18] == 30);
53 assert(v[19] == 31);
54 assert(v[20] == 32);
55 assert(v[21] == 34);
56 assert(v[22] == 35);
57 assert(v[23] == 36);
58 }
59