Function gsl_sys::gsl_multifit_nlinear_winit

pub unsafe extern "C" fn gsl_multifit_nlinear_winit(
    x: *const gsl_vector, 
    wts: *const gsl_vector, 
    fdf: *mut gsl_multifit_nlinear_fdf, 
    w: *mut gsl_multifit_nlinear_workspace
) -> c_int