1 // Copyright 2013 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
14 // A simple implementation of parfib. One subtree is found in a new
15 // task and communicated over a oneshot pipe, the other is found
16 // locally. There is no sequential-mode threshold.
18 fn parfib(n: uint) -> uint {
19 if(n == 0 || n == 1) {
23 let (tx, rx) = channel();
28 return (rx.recv() + m2);
33 let args = os::args();
34 let args = args.as_slice();
35 let n = if args.len() == 2 {
36 from_str::<uint>(args[1].as_slice()).unwrap()