| //@ 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]); | |
| } |