diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/mir/mir_fat_ptr_drop.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/mir/mir_fat_ptr_drop.rs b/src/test/ui/mir/mir_fat_ptr_drop.rs new file mode 100644 index 000000000..d865c3499 --- /dev/null +++ b/src/test/ui/mir/mir_fat_ptr_drop.rs @@ -0,0 +1,32 @@ +// 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); +} |