Function gsl_sys::gsl_odeiv2_step_apply

pub unsafe extern "C" fn gsl_odeiv2_step_apply(
    s: *mut gsl_odeiv2_step, 
    t: f64, 
    h: f64, 
    y: *mut f64, 
    yerr: *mut f64, 
    dydt_in: *const f64, 
    dydt_out: *mut f64, 
    dydt: *const gsl_odeiv2_system
) -> c_int