rust/src/test/run-pass/cleanup-shortcircuit.rs

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// copyright 2013 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.
// Test that cleanups for the RHS of shorcircuiting operators work.
use std::{os, run};
use std::io::process;
pub fn main() {
let args = os::args();
// Here, the rvalue `~"signal"` 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"`
// expression was never evaluated, we wound up trying to clean
// uninitialized memory.
if args.len() >= 2 && args[1] == ~"signal" {
// Raise a segfault.
unsafe { *(0 as *mut int) = 0; }
}
}