rust/src/test/run-fail/bug-2470-bounds-check-overflow-3.rs

29 lines
762 B
Rust
Raw Normal View History

2012-06-06 16:01:12 -07:00
// xfail-test
// error-pattern:index out of bounds
2012-06-06 16:01:12 -07:00
#[cfg(target_arch="x86")]
fn main() {
let x = ~[1u,2u,3u];
2012-06-06 16:01:12 -07:00
// This should cause a bounds-check failure, but may not if we do our
// bounds checking by truncating the index value to the size of the
// machine word, losing relevant bits of the index value.
// This test is only meaningful on 32-bit hosts.
let idx = u64::max_value & !(u64::max_value >> 1u);
2012-08-22 17:24:52 -07:00
error!("ov3 idx = 0x%8.8x%8.8x",
2012-06-06 16:01:12 -07:00
(idx >> 32) as uint,
2012-08-22 17:24:52 -07:00
idx as uint);
2012-06-06 16:01:12 -07:00
// This should fail.
2012-08-22 17:24:52 -07:00
error!("ov3 0x%x", x[idx]);
2012-06-06 16:01:12 -07:00
}
#[cfg(target_arch="x86_64")]
fn main() {
// This version just fails anyways, for symmetry on 64-bit hosts.
let x = ~[1u,2u,3u];
2012-08-22 17:24:52 -07:00
error!("ov3 0x%x", x[200]);
2012-06-06 16:01:12 -07:00
}