switch to use ios::in and ios::out:: http://stackoverflow.com/questions/28307047/what-is-the-difference-between-stdifstreamin-and-stdiosin-obviously-as
switch to use ios::in and ios::out:: http://stackoverflow.com/questions/28307047/what-is-the-difference-between-stdifstreamin-and-stdiosin-obviously-as

CtrlShiftGo/journal-jacanas,CtrlShiftGo/utilities