1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
//@ run-pass
#![feature(as_array_of_cells)]
use std::cell::Cell;
fn main() {
let slice: &mut [i32] = &mut [1, 2, 3];
let cell_slice: &Cell<[i32]> = Cell::from_mut(slice);
let slice_cell: &[Cell<i32>] = cell_slice.as_slice_of_cells();
assert_eq!(slice_cell.len(), 3);
let mut array: [i32; 3] = [1, 2, 3];
let cell_array: &Cell<[i32; 3]> = Cell::from_mut(&mut array);
let array_cell: &[Cell<i32>; 3] = cell_array.as_array_of_cells();
array_cell[0].set(99);
assert_eq!(array, [99, 2, 3]);
}
|
