wxInputStream& operator>>(int& i);
wxInputStream& operator>>(long& i);
wxInputStream& operator>>(float& i);
wxInputStream& operator>>(int& i);
wxInputStream& operator>>(long& i);
wxInputStream& operator>>(float& i);
wxOutputStream& operator<<(int i);
wxOutputStream& operator<<(long i);
wxOutputStream& operator<<(double f);
wxOutputStream& operator<<(int i);
wxOutputStream& operator<<(long i);
wxOutputStream& operator<<(double f);