Function CleanUp

endless-tunnel/app/src/main/cpp/util.hpp:24–29

// Clean up a resource (delete and set to null).
template <typename T>
void CleanUp(T** pptr) {
  if (*pptr) {
    delete *pptr;
    *pptr = NULL;
  }
}

int Random(int uboundExclusive);
int Random(int lbound, int uboundExclusive);