Source Reference:

• Component: bbPress :: bbp-topic

  File: /bbp-includes/bbp-topic-template.php :: Trac Source Line: 2134

  		if ( $wp_rewrite->using_permalinks() ) {
  			$url = $wp_rewrite->root . $bbp->topic_slug . '/' . $topic->post_name . '/edit';
  			$url = home_url( user_trailingslashit( $url ) );
  
  		// Unpretty permalinks
  		} else {
  			$url = add_query_arg( array( bbp_get_topic_post_type() => $topic->post_name, 'edit' => '1' ), home_url( '/' ) );
  		}
  
  		return apply_filters( 'bbp_get_topic_edit_url', $url, $topic_id );
  	}
  
  /**
   * Output the trash link of the topic
   *
   * @since bbPress (r2727)
   *
   * @param mixed $args See {@link bbp_get_topic_trash_link()}
   * @uses bbp_get_topic_trash_link() To get the topic trash link
   */