Referenced by exprtk::rtl::io::file::write< T >::operator()(), exprtk::rtl::io::file::read< T >::operator()(), exprtk::rtl::io::file::close< T >::operator()(), exprtk::rtl::io::file::eof< T >::operator()(), and exprtk::rtl::io::file::getline< T >::operator()().