1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// error-pattern:index out of bounds
use std::mem;
fn main() {
// This should cause a bounds-check failure, but may not if we do our
// bounds checking by comparing the scaled index to the vector's
// address-bounds, since we've scaled the index to wrap around to the
// address of the 0th cell in the array (even though the index is
// huge).
let x = ~[1u,2u,3u];
x.as_imm_buf(|p, _len| {
let base = p as uint;
let idx = base / mem::size_of::<uint>();
error!("ov1 base = 0x{:x}", base);
error!("ov1 idx = 0x{:x}", idx);
error!("ov1 sizeof::<uint>() = 0x{:x}", mem::size_of::<uint>());
error!("ov1 idx * sizeof::<uint>() = 0x{:x}",
idx * mem::size_of::<uint>());
// This should fail.
error!("ov1 0x{:x}", x[idx]);
})
}
|
