20 lines
714 B
Rust
20 lines
714 B
Rust
// Copyright 2012 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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// -*- rust -*-
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pub fn main() { assert!((even(42))); assert!((odd(45))); }
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fn even(n: int) -> bool { if n == 0 { return true; } else { return odd(n - 1); } }
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fn odd(n: int) -> bool { if n == 0 { return false; } else { return even(n - 1); } }
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