User`s guide

3 Writing S-Functions As C-MEX files
3-76
/*
* states
*/
ssSetNumContStates(S, 0);
ssSetNumDiscStates(S, 0);
/*
* outputs
* The upper and lower limits are scalar expanded
* so their size determines the size of the output
* only if at least one of them is not scalar.
*/
if (!ssSetNumOutputPorts(S, 1)) return;
if ( maxNumLimit > 1 ) {
ssSetOutputPortWidth(S, 0, maxNumLimit);
} else {
ssSetOutputPortWidth(S, 0, DYNAMICALLY_SIZED);
}
/*
* inputs
* If the upper or lower limits are not scalar then
* the input is set to the same size. However, the
* ssSetOptions below allows the actual width to
* be reduced to 1 if needed for scalar expansion.
*/
if (!ssSetNumInputPorts(S, 1)) return;
ssSetInputPortDirectFeedThrough(S, 0, 1 );
if ( maxNumLimit > 1 ) {
ssSetInputPortWidth(S, 0, maxNumLimit);
} else {
ssSetInputPortWidth(S, 0, DYNAMICALLY_SIZED);
}
/*
* sample times
*/
ssSetNumSampleTimes(S, 1);
/*
* work
*/
ssSetNumRWork(S, 0);
ssSetNumIWork(S, 0);
ssSetNumPWork(S, 0);