Get a block's pointer work vector
void **ssGetPWork(SimStruct *S)
Use to access the pointer work vector used by the block represented by S. The vector consists of elements of type void * and is of length ssGetNumPWork(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.