(In response to news:fcfe4170050212060072e48cdb / mail.gmail.com by Brian 
Mitchell)

> I would like to see a multi-line that can nest other multi-line
> comments. useful for quick and dirty code changes.

See also this entry: 
18.12:  Why don't C comments nest?  How am I supposed to comment out
        code containing comments?  Are comments legal inside quoted
        strings?
A:      We believe it has something to do with captivity; C comments in
        the wild mate and nest normally.  The San Diego Zoo believes it
        has managed to convince some C comments to nest, but it's hard
        to tell how much of that is really in the preprocessor, and how
        much of it is just bovine fecal matter.
		-- from the FAQ for comp.lang.c

k