In Exploration 2, I introduced you to character literals in single quotes, such as '\n', to end a line of output, but I have not yet taken the time to explain these fundamental building blocks. Now is the time to explore characters in greater depth.
The char type represents a single character. Internally, all computers represent characters as integers. The character set defines the mapping between characters and numeric values. Common character sets are ISO 8859-1 (also called Latin-1) and ISO 10646 (same as Unicode), but many, many other character sets are in wide use.
The C++ standard does not mandate ...