get_next_comments_link( string $label = '', int $max_page )

function get_next_comments_link( $label = '', $max_page = 0 ) {
	global $wp_query;

	if ( ! is_singular() )
		return;

	$page = get_query_var('cpage');

	if ( ! $page ) {
		$page = 1;
	}

	$nextpage = intval($page) + 1;

	if ( empty($max_page) )
		$max_page = $wp_query->max_num_comment_pages;

	if ( empty($max_page) )
		$max_page = get_comment_pages_count();

	if ( $nextpage > $max_page )
		return;

	if ( empty($label) )
		$label = __('Newer Comments »');

	/**
	 * Filters the anchor tag attributes for the next comments page link.
	 *
	 * @since WP-2.7.0
	 *
	 * @param string $attributes Attributes for the anchor tag.
	 */
	return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $label) .'</a>';
}