Function gnunet_sys::GNUNET_CONFIGURATION_have_value

pub unsafe extern "C" fn GNUNET_CONFIGURATION_have_value(
    cfg: *const GNUNET_CONFIGURATION_Handle, 
    section: *const c_char, 
    option: *const c_char
) -> GNUNET_GenericReturnValue

Test if we have a value for a particular option

@param cfg configuration to inspect @param section section of interest @param option option of interest @return #GNUNET_YES if so, #GNUNET_NO if not.