| //@ check-pass | |
| use std::cell::Cell; | |
| use std::ptr::NonNull; | |
| struct ChunkFooter { | |
| prev: Cell<NonNull<ChunkFooter>>, | |
| } | |
| struct EmptyChunkFooter(ChunkFooter); | |
| unsafe impl Sync for EmptyChunkFooter {} | |
| static EMPTY_CHUNK: EmptyChunkFooter = EmptyChunkFooter(ChunkFooter { | |
| prev: Cell::new(unsafe { | |
| NonNull::new_unchecked(&EMPTY_CHUNK as *const EmptyChunkFooter as *mut ChunkFooter) | |
| }), | |
| }); | |
| fn main() {} |