#array #layout #binary-search-tree #sorting #bfs #aka #layer

eytzinger

This crate implements the "eytzinger" (aka BFS) array layout

4 stable releases

Uses old Rust 2015

1.1.1 Mar 3, 2021
1.0.1 Nov 18, 2017
1.0.0 Nov 15, 2017

#2278 in Data structures

Download history 25/week @ 2024-03-11 51/week @ 2024-03-25 51/week @ 2024-04-01 40/week @ 2024-04-08 59/week @ 2024-04-15 18/week @ 2024-04-22 9/week @ 2024-04-29 47/week @ 2024-05-06 48/week @ 2024-05-13 86/week @ 2024-05-20 1/week @ 2024-06-03 6/week @ 2024-06-10 70/week @ 2024-06-17

77 downloads per month
Used in eytzinger-map

MIT license

27KB
448 lines

This crate implements the "eytzinger" (aka BFS) array layout where a binary search tree is stored by layer (instead of as a sorted array). This can have significant performance benefits (see Khuong, Paul-Virak, and Pat Morin. "Array layouts for comparison-based searching.").

Usage

use eytzinger::SliceExt;
let mut data = [0, 1, 2, 3, 4, 5, 6];
data.eytzingerize(&mut eytzinger::permutation::InplacePermutator);
assert_eq!(data, [3, 1, 5, 0, 2, 4, 6]);
assert_eq!(data.eytzinger_search(&5), Some(2));
assert_eq!(data.eytzinger_search_by(|x| x.cmp(&6)), Some(6));

Dependencies

~10KB