1 // Copyright 2012-2014 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.
11 #![allow(unused_parens)]
12 // aux-build:cond_plugin.rs
15 #![feature(proc_macro_hygiene)]
17 extern crate cond_plugin;
19 use cond_plugin::cond;
21 fn fact(n : i64) -> i64 {
29 fn fact_cond(n : i64) -> i64 {
32 (else (n * fact_cond(n-1)))
36 fn fib(n : i64) -> i64 {
44 fn fib_cond(n : i64) -> i64 {
48 (else (fib_cond(n-1) + fib_cond(n-2)))
53 assert_eq!(fact(3), fact_cond(3));
54 assert_eq!(fact(5), fact_cond(5));
55 assert_eq!(fib(5), fib_cond(5));
56 assert_eq!(fib(8), fib_cond(8));