to

1 import std.stdio;
2 
3 {
4     // Variable!(float, 1) x;
5     auto x = [-1f, -2f, -3f].variable;
6     auto y = x.dup;
7     x.data[0] = 1.0;
8     static assert(isVariable!(typeof(x)));
9     static assert(!isVariable!void);
10     static assert(isHost!(typeof(x)));
11     assert(y.data[0] == -1);
12 }
13 version (grain_cuda) {
14     {
15         auto x = [[1f, 3f], [5f, 7f], [9f, 11f]].variable;
16 
17         assert(x.data.length == 6);
18         static assert(!isHost!(typeof(x.to!DeviceStorage)));
19         auto xx = x.dup;
20         assert(x.to!DeviceStorage
21                 .to!HostStorage
22                 .sliced == x.sliced);
23     }
24 }