User`s guide

Examples of C MEX-File S-Function Blocks
3-75
if ( ( numUpperLimit != 1 ) &&
( numLowerLimit != 1 ) &&
( numUpperLimit != numLowerLimit ) ) {
msg = "Number of input and output values must be equal.";
goto EXIT_POINT;
}
/*
* Error exit point
*/
EXIT_POINT:
if (msg != NULL) {
ssSetErrorStatus(S, msg);
}
}
#endif /* MDL_CHECK_PARAMETERS */
/* Function: mdlInitializeSizes ===============================================
* Abstract:
* Initialize the sizes array.
*/
static void mdlInitializeSizes(SimStruct *S)
{
int_T numUpperLimit, numLowerLimit, maxNumLimit;
/*
* Set and check parameter count.
*/
ssSetNumSFcnParams(S, N_PAR);
#if defined(MATLAB_MEX_FILE)
if (ssGetNumSFcnParams(S) == ssGetSFcnParamsCount(S)) {
mdlCheckParameters(S);
if (ssGetErrorStatus(S) != NULL) {
return;
}
} else {
return; /* Parameter mismatch will be reported by Simulink */
}
#endif
/*
* Get parameter size info.
*/
numUpperLimit = mxGetNumberOfElements( P_PAR_UPPER_LIMIT );
numLowerLimit = mxGetNumberOfElements( P_PAR_LOWER_LIMIT );
if (numUpperLimit > numLowerLimit) {
maxNumLimit = numUpperLimit;
} else {
maxNumLimit = numLowerLimit;
}