Three forward slashes for block commenting?

Question

First noticed this in Notepad++, where // comments and /// comments were shown in different colours.
Doxygen revealed more about it, but I\'m n

Answer 1

The author might intend to put documentation after ///

At where I work, we use 3 styles of doxygen comment blocks for documentation because lack of coding style guidelines.

1. ///
2. //!
3. /** */