Function SzConfigTool_addComparisonFunction 

#[unsafe(no_mangle)]
pub extern "C" fn SzConfigTool_addComparisonFunction(
    config_json: *const c_char,
    cfunc_code: *const c_char,
    connect_str: *const c_char,
    cfunc_desc: *const c_char,
    language: *const c_char,
    anon_support: *const c_char,
) -> SzConfigTool_result

Add a comparison function