26 lines
554 B
Rust
26 lines
554 B
Rust
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//! An asynchronous fibonacci sequence generator.
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use std::thread;
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use crossbeam_channel::{bounded, Sender};
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// Sends the Fibonacci sequence into the channel until it becomes disconnected.
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fn fibonacci(sender: Sender<u64>) {
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let (mut x, mut y) = (0, 1);
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while sender.send(x).is_ok() {
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let tmp = x;
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x = y;
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y += tmp;
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}
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}
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fn main() {
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let (s, r) = bounded(0);
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thread::spawn(|| fibonacci(s));
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// Print the first 20 Fibonacci numbers.
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for num in r.iter().take(20) {
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println!("{}", num);
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}
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}
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