sum

1 auto d = CuPtr!float(3);
2 d.zero_();
3 auto h = d.toHost();
4 assert(h == [0, 0, 0]);
5 // assert(zeros!(CuPtr!float)(3).toHost() == [0, 0, 0]);
6 assert(d.fill_(3).toHost() == [3, 3, 3]);