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// Copyright 2014 The Servo Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution. // // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! A one-dimensional length, tagged with its units. use num_lib as num; pub trait Zero { fn zero() -> Self; } impl<T: num::Zero> Zero for T { fn zero() -> T { num::Zero::zero() } } pub trait One { fn one() -> Self; } impl<T: num::One> One for T { fn one() -> T { num::One::one() } }