File: cleanup-shortcircuit.rs

package info (click to toggle)
rustc-web 1.85.0%2Bdfsg3-1~deb12u3
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 1,759,988 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,056; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (23 lines) | stat: -rw-r--r-- 653 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
//@ run-pass
// Test that cleanups for the RHS of shortcircuiting operators work.


#![allow(deref_nullptr)]


use std::env;

pub fn main() {
    let args: Vec<String> = env::args().collect();

    // Here, the rvalue `"signal".to_string()` requires cleanup. Older versions
    // of the code had a problem that the cleanup scope for this
    // expression was the end of the `if`, and as the `"signal".to_string()`
    // expression was never evaluated, we wound up trying to clean
    // uninitialized memory.

    if args.len() >= 2 && args[1] == "signal" {
        // Raise a segfault.
        unsafe { *std::ptr::null_mut::<isize>() = 0; }
    }
}