rust/src/test/ui/oom_unwind.rs
2022-03-05 16:16:51 +01:00

24 lines
598 B
Rust

// compile-flags: -Z oom=panic
// run-pass
// no-prefer-dynamic
// needs-unwind
// only-linux
#![feature(bench_black_box)]
use std::hint::black_box;
use std::mem::forget;
use std::panic::catch_unwind;
fn main() {
let panic = catch_unwind(|| {
// This is guaranteed to exceed even the size of the address space
for _ in 0..16 {
// Truncates to a suitable value for both 32-bit and 64-bit targets.
let alloc_size = 0x1000_0000_1000_0000u64 as usize;
forget(black_box(vec![0u8; alloc_size]));
}
});
assert!(panic.is_err());
}