f_getftime(typval_T *argvars, typval_T *rettv)
{
    char_u	*fname;
    stat_T	st;

    if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
	return;

    fname = tv_get_string(&argvars[0]);
    if (mch_stat((char *)fname, &st) >= 0)
	rettv->vval.v_number = (varnumber_T)st.st_mtime;
    else
	rettv->vval.v_number = -1;
}