Question

In C++, what is the sign of character data type by default?

(a) Signed

(b) Unsigned

(c) Implementation dependent

(d) Unsigned Implementation

I have been asked this question in an international level competition.

I'm obligated to ask this question of Character Types topic in portion Types, Pointers, Arrays & Structures in C++ of C++

Answer 1

The correct choice is (c) Implementation dependent

To explain: The standard does not specify if plain char is signed or unsigned. There are three distinct character types according to the standard: char, signed char and unsigned char.