bp_get_signup_page()

	function bp_get_signup_page() {
		if ( bp_has_custom_signup_page() ) {
			$page = trailingslashit( bp_get_root_domain() . '/' . bp_get_signup_slug() );
		} else {
			$page = bp_get_root_domain() . '/wp-signup.php';
		}

		/**
		 * Filters the URL to the signup page.
		 *
		 * @since BuddyPress 1.1.0
		 *
		 * @param string $page URL to the signup page.
		 */
		return apply_filters( 'bp_get_signup_page', $page );
	}