bp_get_current_blog_roles()

function bp_get_current_blog_roles() {
	global $wp_roles;

	// Sanity check on roles global variable.
	$roles = isset( $wp_roles->roles )
		? $wp_roles->roles
		: array();

	/**
	 * Filters the list of editable roles.
	 *
	 * @since BuddyPress 2.1.0
	 *
	 * @param array $roles List of roles.
	 */
	$roles = apply_filters( 'editable_roles', $roles );

	/**
	 * Filters the array of roles from the currently loaded blog.
	 *
	 * @since BuddyPress 2.1.0
	 *
	 * @param array    $roles    Available roles.
	 * @param WP_Roles $wp_roles Object of WordPress roles.
	 */
	return apply_filters( 'bp_get_current_blog_roles', $roles, $wp_roles );
}