Function gsl_sys::gsl_linalg_QR_lssolve

pub unsafe extern "C" fn gsl_linalg_QR_lssolve(
    QR: *const gsl_matrix, 
    tau: *const gsl_vector, 
    b: *const gsl_vector, 
    x: *mut gsl_vector, 
    residual: *mut gsl_vector
) -> c_int