As noted above, comments should appear at the beginning of every C++ file you write for every C++ program.
There are two styles of comments. The compiler will ignore everything in a comment.
1. Two forward slashes begin a comment that extends to the end of
the current line:
int count = 0; // This comment extends to end of this line
2. A multiline comment begins with /* and terminates with the
first occurence of */
/*---------------------------------------------------
|
| File: prog1.cpp
|
| Description: Computes something...
|
| Created: 07 Sep 05
| Author:
+-------------------------------------------------*/