Threads allow multiple processes to execute at the same time. The following is a very simple example of a threaded program:
use std::thread;
fn main()
{
thread::spawn(||
{
println!("Hello from a thread in your Rust program");
});
}
Code files can be found in Chapter11/SimpleThreadExample.
When compiled, you may expect the println! to show. However, what you get is this:
Figure 1
Why is the println! not showing?