Question

Identify the incorrect statement.

(a) iostream is a standard header and iostream.h is a non-standard header

(b) iostream is a non-standard header and iostream.h is a non-standard header

(c) iostream is a standard header and iostream.h is a standard header

(d) iostream is a non-standard header

I have been asked this question in semester exam.

This intriguing question comes from Header Files Usage in chapter Source Files, Classes and Operator Overloading in C++ of C++

Answer 1

The correct answer is (a) iostream is a standard header and iostream.h is a non-standard header

For explanation: The iostream.h is used in the older versions of c++ and iostream is evolved from it in the std namespace.