Question

Which of the header file must be included to use stringstream?

(a) <iostream>

(b) <string>

(c) <sstring>

(d) <sstream>

This question was addressed to me in an interview.

The question is from Header Files Usage in chapter Source Files, Classes and Operator Overloading in C++ of C++

Answer 1

Right choice is (b) <string>

Easy explanation - stringstream is available under the header file <string> in C++.