Function gsl_sys::gsl_multilarge_nlinear_init

pub unsafe extern "C" fn gsl_multilarge_nlinear_init(
    x: *const gsl_vector, 
    fdf: *mut gsl_multilarge_nlinear_fdf, 
    w: *mut gsl_multilarge_nlinear_workspace
) -> c_int

This is supported on crate feature v2_1 only.