Re: -traditional comment elimination (yuk...)

[Dave Brolley <brolley at redhat dot com>]

Dave Brolley wrote:

> > I wouldn't worry about
> >
> > //**/* this is a comment */
> >
> > unless and until someone reports that this breaks real code.
>
> This and most other comment-creation effects will be handled by default with
> two passes. This is because in a K&R preprocessor/compiler system, the
> compiler still recognized comments.
>

Strike that:  -traditional compilers did not recognize comments. The above
example should produce a comment *only* if it is the result of a macro expansion
and this is because the -traditional *preprocessor* ends up rescanning the text.

  #define UGLY //**/* this is a comment */
  UGLY

This example should also work

  #define UGLIER //**/* Start a comment
  UGLIER end a comment */

These are also example where two passes alone will not solve the problem  :-(

Dave