diff_equal_entry(diff_T *dp, int idx1, int idx2)
{
    int		i;
    char_u	*line;
    int		cmp;

    if (dp->df_count[idx1] != dp->df_count[idx2])
	return FALSE;
    if (diff_check_sanity(curtab, dp) == FAIL)
	return FALSE;
    for (i = 0; i < dp->df_count[idx1]; ++i)
    {
	line = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx1],
					       dp->df_lnum[idx1] + i, FALSE));
	if (line == NULL)
	    return FALSE;
	cmp = diff_cmp(line, ml_get_buf(curtab->tp_diffbuf[idx2],
					       dp->df_lnum[idx2] + i, FALSE));
	vim_free(line);
	if (cmp != 0)
	    return FALSE;
    }
    return TRUE;
}
diff_equal_entry(diff_T *dp, int idx1, int idx2)
{
    int		i;
    char_u	*line;
    int		cmp;

    if (dp->df_count[idx1] != dp->df_count[idx2])
	return FALSE;
    if (diff_check_sanity(curtab, dp) == FAIL)
	return FALSE;
    for (i = 0; i < dp->df_count[idx1]; ++i)
    {
	line = vim_strsave(ml_get_buf(curtab->tp_diffbuf[idx1],
					       dp->df_lnum[idx1] + i, FALSE));
	if (line == NULL)
	    return FALSE;
	cmp = diff_cmp(line, ml_get_buf(curtab->tp_diffbuf[idx2],
					       dp->df_lnum[idx2] + i, FALSE));
	vim_free(line);
	if (cmp != 0)
	    return FALSE;
    }
    return TRUE;
}