[rustc.git] / src / test / ui / oom_unwind.rs

// compile-flags: -Z oom=panic
// run-pass
// no-prefer-dynamic
// needs-unwind
// only-linux

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());
}
Commit	Line	Data
5e7ed085 FG	1	// compile-flags: -Z oom=panic
	2	// run-pass
	3	// no-prefer-dynamic
	4	// needs-unwind
	5	// only-linux
	6
5e7ed085 FG	7	use std::hint::black_box;
	8	use std::mem::forget;
	9	use std::panic::catch_unwind;
	10
	11	fn main() {
	12	let panic = catch_unwind(\|\| {
	13	// This is guaranteed to exceed even the size of the address space
	14	for _ in 0..16 {
	15	// Truncates to a suitable value for both 32-bit and 64-bit targets.
	16	let alloc_size = 0x1000_0000_1000_0000u64 as usize;
	17	forget(black_box(vec![0u8; alloc_size]));
	18	}
	19	});
	20	assert!(panic.is_err());
	21	}