pub unsafe fn write_owned_mutable_ptr(ptr: *mut u64, value: u64)Expand description
Write a new u64 (Ptr-shaped) payload into an OwnedMutable cell.
§Safety
ptr must be non-null and point to a live Box<u64> cell. The
caller is responsible for releasing the previous payload’s refcount
share (if any) BEFORE calling this — this function does not
retain/release.