A class constructor.

[esepich]

TinyGPS::TinyGPS()
  :  _time(GPS_INVALID_TIME)
  ,  _date(GPS_INVALID_DATE)
  ,  _latitude(GPS_INVALID_ANGLE)
  ,  _longitude(GPS_INVALID_ANGLE)
  ,  _altitude(GPS_INVALID_ALTITUDE)
  ,  _speed(GPS_INVALID_SPEED)
  ,  _course(GPS_INVALID_ANGLE)
  ,  _hdop(GPS_INVALID_HDOP)
  ,  _numsats(GPS_INVALID_SATELLITES)
  ,  _last_time_fix(GPS_INVALID_FIX_TIME)
  ,  _last_position_fix(GPS_INVALID_FIX_TIME)
  ,  _parity(0)
  ,  _is_checksum_term(false)
  ,  _sentence_type(_GPS_SENTENCE_OTHER)
  ,  _term_number(0)
  ,  _term_offset(0)
  ,  _gps_data_good(false)
#ifndef _GPS_NO_STATS
  ,  _encoded_characters(0)
  ,  _good_sentences(0)
  ,  _failed_checksum(0)
#endif
{
  _term[0] = '\0';
}

I am wondering about the constructor. I see there appears to be nothing inside of TinyGPS::TinyGPS() as far as parameters go and that that declaration is followed by a ":". First I'm wondering as to the meaning of the colon. As well with the variables defined after the ":" I see some "(0)" and I am wondering as well to the exact meaning of the "(0)". Are those variables being defined as parameters separated by ","?

[Cubbi]

This is a constructor. Each name in the comma-separated list after the colon is the name of a member of the class that's being constructed. For each member, the values in the parentheses is the initial value of the member.

[esepich]

Thank you. That answers my question very well.