Crate priority_matrix

The Rust crate implements the matrix data structure that supports per-row, per-column and whole-matrix maximum key queries.

use priority_matrix::PriorityMatrix;

let matrix: PriorityMatrix<char, &str, i32> = [
    ('a', "alpha", 0),
    ('a', "beta", 3),
    ('b', "alpha", 2),
    ('b', "beta", 1),
]
.into_iter()
.collect();

// Get the maximum entry
let entry = matrix.peek().unwrap();
assert_eq!(entry.row, &'a');
assert_eq!(entry.column, &"beta");
assert_eq!(entry.weight, &3);

// Get the maximum entry in a row
let entry = matrix.peek_from_row(&'b').unwrap();
assert_eq!(entry.row, &'b');
assert_eq!(entry.column, &"alpha");
assert_eq!(entry.weight, &2);

// Get the maximum entry in a column
let entry = matrix.peek_from_column(&"alpha").unwrap();
assert_eq!(entry.row, &'b');
assert_eq!(entry.column, &"alpha");
assert_eq!(entry.weight, &2);

Modules

entry

Entry types.

iter

Iterator types.

Structs

PriorityMatrix

The 2-dimensional matrix that supports per-row and per-column maximum key queries.