Variable to char\byte array

void MyFunc (int parm) {
  MyFunc (reinterpret_cast<BYTE const *>(&parm), sizeof(parm));
}void MyFunc (__int64 parm) {
  MyFunc (reinterpret_cast<BYTE const *>(&parm), sizeof(parm));
}void MyFunc (BYTE const *data, size_t dataLen) {// do something
}