- /*!
- * \brief Confirm that ninputs and noutputs is an acceptable combination.
- *
- * \param ninputs number of input streams connected
- * \param noutputs number of output streams connected
- *
- * \returns true if this is a valid configuration for this block.
- *
- * This function is called by the runtime system whenever the
- * topology changes. Most classes do not need to override this.
- * This check is in addition to the constraints specified by the input
- * and output gr_io_signatures.
- */
- virtual bool check_topology (int ninputs, int noutputs);
-