I concatenate a 2nd single character string to my 1st string.
I print it to verify 2nd single char got appended.
Then I concatenate a 3rd string to first 1st string.
I print it and see 1st string + 3rd string, but 2nd single char is now gone.
1st string:
String publication_event_data;
publication_event_data = String::format( "%d,%s,%s,%f,%f,%.2f,%.2f%%,%d,%d,%s,",
COMMUNICATION_FORMAT_VERSION,
TRACKER_DEVICE_NAME,
PROGRAM_VERSION,
record_latitude,
record_longitude,
fuel.getVCell(),
fuel.getSoC(),
present_GPS_fix,
record_timestamp,
publish_function_code
); // 'c' = callback from mobile 'm' = manual initiated 'T' =
publication_event_data.concat( "1" ); // 2nd string
Print of publication_event_data shows both strings.
3rd string:
String next_record = String::format( "%f,%f,%d,",
record_latitude,
record_longitude,
record_timestamp
);
publication_event_data.concat( next_record );
Now publication_event_data no longer has 2nd string ā1ā .