c-forward-single-comment is a compiled Lisp function in `
Move forward past whitespace and the closest following comment, if any.
Return t if a comment was found, nil otherwise. In either case, the
point is moved past the following whitespace. Line continuations,
i.e. a backslashes followed by line breaks, are treated as whitespace.
The line breaks that end line comments are considered to be the
comment enders, so the point will be put on the beginning of the next
line if it moved past a line comment.
This function does not do any hidden buffer changes.