unique_ptr+char*

int len1 = 6;
unique_ptr<char[]> bbc1(new char[len1]{0});
cout << "bbc1:" << bbc1.get() << endl;
char *abcd = bbc1.get();

unique_ptr<string> bbc2 = make_unique<string>("abcde"); 
cout << "bbc2:" << bbc2->data() << endl;