src/test/ui/rfcs/rfc-1789-as-cell/from-mut.rs

   1 // run-pass
   2
   3 use std::cell::Cell;
   4
   5 fn main() {
   6     let slice: &mut [i32] = &mut [1, 2, 3];
   7     let cell_slice: &Cell<[i32]> = Cell::from_mut(slice);
   8     let slice_cell: &[Cell<i32>] = cell_slice.as_slice_of_cells();
   9
  10     assert_eq!(slice_cell.len(), 3);
  11 }