Function cblas_sys::cblas_dgbmv

pub unsafe extern "C" fn cblas_dgbmv(
    layout: CBLAS_LAYOUT, 
    transa: CBLAS_TRANSPOSE, 
    m: c_int, 
    n: c_int, 
    kl: c_int, 
    ku: c_int, 
    alpha: c_double, 
    a: *const c_double, 
    lda: c_int, 
    x: *const c_double, 
    incx: c_int, 
    beta: c_double, 
    y: *mut c_double, 
    incy: c_int
)