Function zgttrs_work 

pub unsafe fn zgttrs_work(
    layout: Layout,
    trans: u8,
    n: i32,
    nrhs: i32,
    dl: &[c64],
    d: &[c64],
    du: &[c64],
    du2: &[c64],
    ipiv: &[i32],
    b: &mut [c64],
    ldb: i32,
) -> i32