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include <cstdio>

struct clazz {
  clazz(char* i) {
    priv = i;
  }
  void blah(const clazz& B) {
    priv = B.priv;
    priv[0] = 'A';
  }
  void print() {
    printf("%s\n", priv);
  }
private:
  char* priv;
};

int main() {
  char* bdat = new char[2];
  bdat[0] = '2';
  bdat[1] = '\0';

  clazz A("1"), B(bdat);
  A.blah(B);
  A.print();
  B.print();
  return 0;
}