gistfile1.rs

// multiple indexing for matrices

struct Matrix {
    n: int,
    m: int,

    data: ~[int]
}

impl Index<[int, ..2], int> for Matrix {
    fn index(&self, ix: &[int, ..2]) -> int {
        self.data[ix[0] * self.m + ix[1]]
    }
}

fn main() {
    let a = Matrix { n: 2, m: 2, data: ~[1, 2, 3, 4] };

    io::println(a[[0, 0]].to_str());
    io::println(a[[1, 0]].to_str());
}