dsalgo 0.3.10

A package for Datastructures and Algorithms.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88

use std::ops::*;

#[derive(Debug, Clone, Copy, Eq, PartialEq)]

pub struct Matrix<T, const H: usize, const W: usize>([[T; W]; H]);

impl<T: Copy, const H: usize, const W: usize> Matrix<T, H, W> {
    pub fn new(fill_value: T) -> Self {
        Self([[fill_value; W]; H])
    }
}

impl<T: Copy, const H: usize, const W: usize> Default for Matrix<T, H, W>
where
    T: Default,
{
    fn default() -> Self {
        Self::new(T::default())
    }
}

impl<T: Copy, const H: usize, const W: usize> From<[[T; W]; H]>
    for Matrix<T, H, W>
{
    fn from(a: [[T; W]; H]) -> Self {
        Self(a)
    }
}

impl<T, const H: usize, const W: usize> Index<usize> for Matrix<T, H, W> {
    type Output = [T; W];

    fn index(
        &self,
        i: usize,
    ) -> &Self::Output {
        &self.0[i]
    }
}

impl<T, const H: usize, const W: usize> IndexMut<usize> for Matrix<T, H, W> {
    fn index_mut(
        &mut self,
        i: usize,
    ) -> &mut Self::Output {
        &mut self.0[i]
    }
}

impl<T, const H: usize, const W: usize> std::fmt::Display for Matrix<T, H, W>
where
    T: std::fmt::Debug + Copy,
{
    fn fmt(
        &self,
        f: &mut std::fmt::Formatter<'_>,
    ) -> std::fmt::Result {
        let format_str = self
            .0
            .iter()
            .map(|row| format!("{:?}", row))
            .collect::<Vec<_>>()
            .join("\n");

        write!(f, "{}", format_str)
    }
}

#[cfg(test)]

mod tests {

    use super::*;

    #[test]

    fn test() {
        type Mat = Matrix<i64, 4, 3>;

        let mut a = Mat::new(0);

        a[1][1] += 1;

        println!("{:?}", a);

        println!("{}", a);
    }
}