Function cudd_sys::Cudd_OverApprox

pub unsafe extern "C" fn Cudd_OverApprox(
    dd: *mut DdManager, 
    f: *mut DdNode, 
    numVars: c_int, 
    threshold: c_int, 
    safe: c_int, 
    quality: c_double
) -> *mut DdNode