#matrix #const-generics #fixed-size #stack #memory #dimension #reftrix

mightrix

A library to treat continous memory as a matrix

5 releases

0.3.2 Aug 23, 2023
0.3.1 Aug 23, 2023
0.2.1 Aug 18, 2023
0.1.0 Aug 17, 2023

#869 in Rust patterns

Download history 39/week @ 2024-03-31

84 downloads per month

MIT/Apache

51KB
755 lines

mightrix

The mightrix crate exposes matrix types that let continuous memory be used as if it where a matrix. The dimensions of the matrix is asserted through const generics. This way the owned variant of the matrix Stacktrix can use a fixed size array on the stack.

Example

use mightrix::{ Reftrix, ColumnPrio, ColumnPrioMatrix };

fn main() {
    let mut data = vec![1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4];

    let mut matrix = Reftrix::<4, 4, ColumnPrio, u8>::from_values(&mut data[..]);

    for el in matrix.get_mut_row(0) {
        *el *= 2;
    }


    for col in matrix.cols_mut() {
        for (i, cell) in col.into_iter().enumerate() {
            *cell += i as u8;
        }
    }
    assert_eq!(&data[..], &[2, 2, 3, 4, 4, 3, 4, 5, 6, 4, 5, 6, 8, 5, 6, 7]);
}

Matrix before:

Col0 Col1 Col2 Col3
Row0 1 2 3 4
Row1 1 2 3 4
Row2 1 2 3 4
Row3 1 2 3 4

Matrix after:

Col0 Col1 Col2 Col3
Row0 2 4 6 8
Row1 2 3 4 5
Row2 3 4 5 6
Row3 4 5 6 7

No runtime deps