manage unset values with NAN

[apps/low-level-can-service.git] / CAN-binder / low-can-binding / binding / low-can-cb.cpp

diff --git a/CAN-binder/low-can-binding/binding/low-can-cb.cpp b/CAN-binder/low-can-binding/binding/low-can-cb.cpp
index ace5348..4fa375b 100644 (file)
--- a/CAN-binder/low-can-binding/binding/low-can-cb.cpp
+++ b/CAN-binder/low-can-binding/binding/low-can-cb.cpp
@@ -395,12 +395,7 @@ static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe,
                // poll a PID for nothing.
                if(sig->get_supported() && subscribe)
                {
-                       float frequency;
-
-                       if(event_filter.frequency >= 0)
-                               { frequency = event_filter.frequency; }
-                       else
-                               { frequency = sig->get_frequency(); }
+                       float frequency = isnan(event_filter.frequency) ? sig->get_frequency() : event_filter.frequency;
 
                        diag_m.add_recurring_request(diag_req, sig->get_name().c_str(), false, sig->get_decoder(), sig->get_callback(), frequency);
                        //TODO: Adding callback requesting ignition status:     diag_req, sig.c_str(), false, diagnostic_message_t::decode_obd2_response, diagnostic_message_t::check_ignition_status, frequency);