| // Copyright 2013 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. |
| |
| /// Utilities for testing approximate ordering - especially true for |
| /// floating point types, where NaN's cannot be ordered. |
| pub fn min<T: PartialOrd>(x: T, y: T) -> T { |
| if x <= y { |
| x |
| } else { |
| y |
| } |
| } |
| |
| pub fn max<T: PartialOrd>(x: T, y: T) -> T { |
| if x >= y { |
| x |
| } else { |
| y |
| } |
| } |
| |
| #[cfg(test)] |
| mod tests { |
| use super::*; |
| |
| #[test] |
| fn test_min() { |
| assert!(min(0u32, 1u32) == 0u32); |
| assert!(min(-1.0f32, 0.0f32) == -1.0f32); |
| } |
| |
| #[test] |
| fn test_max() { |
| assert!(max(0u32, 1u32) == 1u32); |
| assert!(max(-1.0f32, 0.0f32) == 0.0f32); |
| } |
| } |