Function MSD_radix_sort

tests/test_strings.rs:41–52

()

#[test]
fn MSD_radix_sort() {
    // empty
    let mut data: Vec<&str> = vec![];
    MSD::sort(&mut data);
    assert!(data.is_sorted());

    // normal
    let i = SHELLS;
    let mut data = extract_words(i);
    MSD::sort(&mut data);
    assert!(data.is_sorted());
}

#[test]
fn quick3str() {