Mine

else if (DerefSym(SymAdd(sym_buf_ptr))) {  	show_msg("File does not exist. It will be created.");    SymDel(sym_buf_ptr);    if (!(file_ptr = malloc(BUF_SIZE + 1)))    {	  show_msg("Error: not enough memory on the calc !");      return error(ERR_MEMORY);    }	show_msg("Enough memory on the calc to store the file.");    page_ptr = curs_ptr = file_ptr;    end_ptr = gap_ptr = file_ptr + BUF_SIZE;  }