pub unsafe extern "C" fn dtbcon_(
norm: *const c_char,
uplo: *const c_char,
diag: *const c_char,
n: *const lapack_int,
kd: *const lapack_int,
AB: *const f64,
ldab: *const lapack_int,
rcond: *mut f64,
work: *mut f64,
iwork: *mut lapack_int,
info: *mut lapack_int,
)