#![allow(unused_variable)]
struct test(i32);

fn main()
{
    let matrix = Matrix::new([2, 2], vec![1, 2, 3, 4]).unwrap();
    println!("{:?}", matrix);
}

struct Matrix<T>
{
    nums: Vec<T>,
    row: u32,
    col: u32,
}

impl<T> std::fmt::Debug for Matrix<T>
where T: std::fmt::Debug
{
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result
    {
        write!(f, "duh")
    }
}

impl<T> Matrix<T>
where T: std::ops::Mul + std::ops::Sub + std::ops::Add + std::ops::Div
{
    fn new(d: [u32; 2], nums: Vec<T>) -> Option<Matrix<T>>
    {
        if d[0] * d[1] != nums.len() as u32 { return None; }
        Some(Matrix
        {
            nums: nums,
            row: d[0],
            col: d[1],
        })
    }
}