[antlr-interest] Re: nested comments
Paul Johnson
gt54-antlr at cyconix.com
Wed Jul 6 04:40:58 PDT 2005
David Wigg wrote:
> With reference to recent messages about nested C comments, I am not
> aware that any comments can be nested, eg. something like,
>
> /* comment
> source code /* nested comment */
> source code
> */ .
>
> In my (bitter) experience the first closing (*/) after an opening (/*)
> closes the comment.
>
> Perhaps I misunderstood the meaning of nested here?
>
> If this is legal please could someone quote any reference supporting it.
It's definitely illegal - see footnote 69 on p66 of the spec. However, I
think it's occasionally supported - Borland does (used to?), but I don't
think gcc does.
Paul
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