Function check_sparse

examples/clippy_verify.rs:216–229

()

}

fn check_sparse() {
    // SPMatrix transpose (sparse.rs:97, 102)
    let m = ml_matrix("1 0 2 0; 0 3 0 4; 5 0 0 6; 0 7 8 0");
    let sp: SPMatrix = SPMatrix::from_dense(&m);
    let spt: SPMatrix = sp.transpose();
    let recovered = spt.to_dense();
    print_kv("sparse transpose hash", hash_matrix(&recovered));
    // Also exercise a non-square shape and verify double-transpose
    // returns the original.
    let m2 = ml_matrix("1 0 0; 0 2 3; 4 0 5; 0 6 0");
    let sp2: SPMatrix = SPMatrix::from_dense(&m2);
    let sp2tt = sp2.transpose().transpose().to_dense();
    print_kv("sparse round-trip hash", hash_matrix(&sp2tt));
}

fn check_useful() {
    // useful::max / useful::min (useful.rs:82, 100)