use custos::Buffer;
fn main() {
let mut buf = Buffer::from([1, 2, 3, 6, 5, 3, -4]);
for value in &mut buf {
*value -= 2;
}
let mut gpu_buf = buf.to_gpu();
assert_eq!(gpu_buf.read(), [-1, 0, 1, 4, 3, 1, -6]);
gpu_buf.clear();
assert_eq!(gpu_buf.read(), [0; 7]);
}