Determine whether the output of this block is connected to a Merge block
int_T ssGetOutputPortBeingMerged(SimStruct *S, int_T port)
An int_T (1 or 0) or boolean_T (true or false) value indicating if this output port signal is being merged with other signals.
Use this macro in and after the mdlSetWorkWidths method. Returns 1(true) if this output port signal is being merged with other signals (this happens if the S-Function block's output port is connected to a Merge block directly or via connection type blocks).
The output port must be made reusable using ssSetOutputPortOptimOpts to be connected to a Merge block.