File: integer-overflow.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (24 lines) | stat: -rw-r--r-- 552 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
//@ compile-flags: -O -C overflow-checks=on

#![crate_type = "lib"]

pub struct S1<'a> {
    data: &'a [u8],
    position: usize,
}

// CHECK-LABEL: @slice_no_index_order
#[no_mangle]
pub fn slice_no_index_order<'a>(s: &'a mut S1, n: usize) -> &'a [u8] {
    // CHECK-NOT: slice_index_order_fail
    let d = &s.data[s.position..s.position + n];
    s.position += n;
    return d;
}

// CHECK-LABEL: @test_check
#[no_mangle]
pub fn test_check<'a>(s: &'a mut S1, x: usize, y: usize) -> &'a [u8] {
    // CHECK: slice_index_order_fail
    &s.data[x..y]
}