william_ranges/lib.rs
1use std::ops::Range;
2/// 如果两个范围重叠 就返回true
3/// ```
4/// asset_eq!(ranges::overlap(0..7,3..10),true);
5/// asset_eq!(ranges::overlap(0..7,10..13),false);
6/// ```
7/// 如果任意一个范围是空, 则他们不会被看作是重叠的
8/// ```
9/// asset_eq!(ranges::overlap(0..0,1..2),false);
10/// ```
11///
12pub fn overlap(r1: Range<usize>, r2: Range<usize>) -> bool {
13 r1.start < r2.end && r2.start < r1.end
14}
15pub fn add(left: u64, right: u64) -> u64 {
16 left + right
17}
18
19#[cfg(test)]
20mod tests {
21 use super::*;
22
23 #[test]
24 fn it_works() {
25 let result = add(2, 2);
26 assert_eq!(result, 4);
27 }
28}