exit_err(NULL == file, world, err_o);
uint16_t lines, linemax;
exit_err(textfile_sizes(file, &linemax, &lines), world, err_s);
exit_err(NULL == file, world, err_o);
uint16_t lines, linemax;
exit_err(textfile_sizes(file, &linemax, &lines), world, err_s);