Kinds of Comments in C++
There are two kinds of comments in C++: single-line and paired. A single-line comment starts with a double slash (//) and ends with a newline. Everything to the right of the slashes on the current line is ignored by the compiler. A comment of this kind can contain any text, including additional double slashes.
The other kind of comment uses two delimiters (/* and */) that are inherited from C. Such comments begin with a /* and end with the next */. These comments can include anything that is not a */, including newlines. The compiler treats everything that falls between the /* and */ as part of the comment.
A comment pair can be placed anywhere a tab, space, or newline is permitted. Comment pairs can span multiple lines ...
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