mirror of https://github.com/rust-lang/rust
21 lines
530 B
Rust
21 lines
530 B
Rust
//@ run-pass
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#![feature(as_array_of_cells)]
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use std::cell::Cell;
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fn main() {
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let slice: &mut [i32] = &mut [1, 2, 3];
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let cell_slice: &Cell<[i32]> = Cell::from_mut(slice);
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let slice_cell: &[Cell<i32>] = cell_slice.as_slice_of_cells();
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assert_eq!(slice_cell.len(), 3);
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let mut array: [i32; 3] = [1, 2, 3];
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let cell_array: &Cell<[i32; 3]> = Cell::from_mut(&mut array);
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let array_cell: &[Cell<i32>; 3] = cell_array.as_array_of_cells();
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array_cell[0].set(99);
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assert_eq!(array, [99, 2, 3]);
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}
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