Add an explanatory comment to the test.

2020-04-20 17:13:22 -07:00 · 2020-04-20 17:13:22 -07:00 · 90e9a87fa7
commit 90e9a87fa7
parent cc9248a7c8
1 changed files with 1 additions and 0 deletions
--- a/tests/compile-fail/concurrency/libc_pthread_join_multiple.rs
+++ b/tests/compile-fail/concurrency/libc_pthread_join_multiple.rs
@ -10,6 +10,7 @@ use std::thread;
 use std::{mem, ptr};

 extern "C" fn thread_start(_null: *mut libc::c_void) -> *mut libc::c_void {
+    // Yield the thread several times so that other threads can join it.
    thread::yield_now();
    thread::yield_now();
    ptr::null_mut()