1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
20 use std::old_io::process::Command;
23 // lifted from the test module
24 // Inlining to avoid llvm turning the recursive functions into tail calls,
25 // which doesn't consume stack.
28 pub fn black_box<T>(dummy: T) { unsafe { asm!("" : : "r"(&dummy)) } }
38 let args: Vec<String> = env::args().collect();
39 if args.len() > 1 && args[1] == "recurse" {
42 let recurse = Command::new(&args[0]).arg("recurse").output().unwrap();
43 assert!(!recurse.status.success());
44 let error = String::from_utf8_lossy(&recurse.error);
45 assert!(error.contains("has overflowed its stack"));