mirror of https://github.com/rust-lang/rust
33 lines
629 B
Rust
33 lines
629 B
Rust
//@ run-pass
|
|
#![allow(unused_variables)]
|
|
#![allow(stable_features)]
|
|
|
|
// test that ordinary fat pointer operations work.
|
|
|
|
#![feature(braced_empty_structs)]
|
|
#![feature(rustc_attrs)]
|
|
|
|
use std::sync::atomic;
|
|
use std::sync::atomic::Ordering::SeqCst;
|
|
|
|
static COUNTER: atomic::AtomicUsize = atomic::AtomicUsize::new(0);
|
|
|
|
struct DropMe {
|
|
}
|
|
|
|
impl Drop for DropMe {
|
|
fn drop(&mut self) {
|
|
COUNTER.fetch_add(1, SeqCst);
|
|
}
|
|
}
|
|
|
|
fn fat_ptr_move_then_drop(a: Box<[DropMe]>) {
|
|
let b = a;
|
|
}
|
|
|
|
fn main() {
|
|
let a: Box<[DropMe]> = Box::new([DropMe { }]);
|
|
fat_ptr_move_then_drop(a);
|
|
assert_eq!(COUNTER.load(SeqCst), 1);
|
|
}
|