The characters /* start a comment, which terminates with the
characters */.
These comments do not nest.
The characters // start a comment, which terminates immediately before the
next new-line character.
[Note 1:
The comment characters //, /*,
and */ have no special meaning within a // comment and
are treated just like other characters.
Similarly, the comment
characters // and /* have no special meaning within a
/* comment.
— end note]