Function gsl_sys::gsl_fit_linear

pub unsafe extern "C" fn gsl_fit_linear(
    x: *const f64, 
    xstride: usize, 
    y: *const f64, 
    ystride: usize, 
    n: usize, 
    c0: *mut f64, 
    c1: *mut f64, 
    cov00: *mut f64, 
    cov01: *mut f64, 
    cov11: *mut f64, 
    sumsq: *mut f64
) -> c_int