NXC Version 1.2.1 r5
Two forms of comments are supported in NXC.
The first are traditional C comments. They begin with '/*' and end with '* /'. These comments are allowed to span multiple lines, but they cannot be nested.
The second form of comments supported in NXC begins with '//' and continues to the end of the current line. These are sometimes known as C++ style comments.
As you might guess, the compiler ignores comments. Their only purpose is to allow the programmer to document the source code.