rust/tests/ui/oom_unwind.rs

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//@ compile-flags: -Z oom=panic
//@ run-pass
//@ no-prefer-dynamic
//@ needs-unwind
2022-03-05 00:11:46 +00:00
//@ 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());
}