Function lapacke::dtgexc

pub unsafe fn dtgexc(
    layout: Layout, 
    wantq: i32, 
    wantz: i32, 
    n: i32, 
    a: &mut [f64], 
    lda: i32, 
    b: &mut [f64], 
    ldb: i32, 
    q: &mut f64, 
    ldq: i32, 
    z: &mut [f64], 
    ldz: i32, 
    ifst: &mut [i32], 
    ilst: &mut [i32]
) -> i32