On Wed, 23 Apr 2008, Roel Kluin wrote: > Thanks for your feedback, julia, I finally used > > ( > * i < 0 > | > * i < -C > | > * i > -C > | > * i <= -C > | > * i >= -C > ) > > I noted you had more results in the same files. Is there a difference > in results when you remove the asterisks before the expression? I'm not sure to understand the question. * means "tell me about this item". So if you remove the *, it will do same the match, but it won't give you any output. Sometimes I have posted to the kernel janitors mailing list semantic patches, in which - and + are used to remove and add things, rather than *, which just finds things. The semantics of the matching done with - and + is slightly different from the semantics with *, in that with - and +, all control-flow paths from the first node matched by the pattern have to use the metavariables (eg C) in a consistent way, whereas with * there just has to exist a single path that matches the pattern. But this is not relevant to our example, because we are just matching individual terms. julia -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
