// ignore-windows: Concurrency on Windows is not supported yet.

// Joining itself is undefined behavior.

#![feature(rustc_private)]

extern crate libc;

use std::ptr;

fn main() {
    unsafe {
        let native: libc::pthread_t = libc::pthread_self();
        assert_eq!(libc::pthread_join(native, ptr::null_mut()), 0); //~ ERROR: Undefined Behavior: trying to join itself
    }
}