Now welcome to the future. The modern C++ provides a human way of manipulating string. We considered string as a container, as a data type just as int.
Now we can construct string, and assigned it again and again.
We can get the length of string by member function size() as all the containers do.
We can use < operator to do the comparsion with the same function of strcmp.
We can use + operator to do the concatenation.
We can use member function find to find the occurance of substring.