Nested comments in c

1. What is nested comments in C?
2. Can we use nested comments in C?
3. What are nested comments?
4. Why nested comments are not allowed in C?

What is nested comments in C?

A nested comment is a comment inside another comment.

Can we use nested comments in C?

A comment can include any combination of characters from the representable character set, including newline characters, but excluding the "end comment" delimiter (*/). Comments can occupy more than one line but cannot be nested.

What are nested comments?

When someone comments on a previous comment, a “nest” is created. The first comment shows normally, but then the replies to the comment are categorized directly underneath the original comment.

Why nested comments are not allowed in C?

C and C++ do it for ease of parsing. This way, when they hit a comment start of /*, the parser can trivially scan to the end. Otherwise, it would have to set up and maintain a stack, and then report errors if the comment tokens are unmatched.