59 lines
1.6 KiB
Rust
59 lines
1.6 KiB
Rust
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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fn periodical(n: int) -> Receiver<bool> {
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let (chan, port) = channel();
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spawn(proc() {
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loop {
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for _ in range(1, n) {
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match chan.send_opt(false) {
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Ok(()) => {}
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Err(..) => break,
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}
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}
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match chan.send_opt(true) {
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Ok(()) => {}
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Err(..) => break
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}
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}
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});
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return port;
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}
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fn integers() -> Receiver<int> {
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let (chan, port) = channel();
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spawn(proc() {
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let mut i = 1;
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loop {
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match chan.send_opt(i) {
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Ok(()) => {}
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Err(..) => break,
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}
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i = i + 1;
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}
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});
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return port;
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}
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fn main() {
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let ints = integers();
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let threes = periodical(3);
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let fives = periodical(5);
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for _ in range(1, 100) {
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match (ints.recv(), threes.recv(), fives.recv()) {
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(_, true, true) => println!("FizzBuzz"),
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(_, true, false) => println!("Fizz"),
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(_, false, true) => println!("Buzz"),
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(i, false, false) => println!("{}", i)
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}
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}
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}
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