Get a block's integer work vector
int_T *ssGetIWork(SimStruct *S)
Use to access the integer work vector used by the block represented by S. The vector consists of elements of type int_T and is of length ssGetNumIWork(S). Typically, this vector is initialized in mdlStart or mdlInitializeConditions, updated in mdlUpdate, and used in mdlOutputs. You can use this macro in the simulation loop, mdlInitializeConditions, or mdlStart routines.