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From: karl@haddock.ISC.COM (Karl Heuer)
Newsgroups: comp.lang.c
Subject: Re: Case fall throughs
Message-ID: <8902@brl-adm.ARPA>
Date: Thu, 20-Aug-87 14:58:06 EDT
Article-I.D.: brl-adm.8902
Posted: Thu Aug 20 14:58:06 1987
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In article <2201@zeus.TEK.COM> dant@tekla (Dan Tilque) writes:
>... I do not advocate removing this [fallthrough] feature completely from the
>language and substituting goto case labels [because fallthrough is faster].

Any good optimizer will recognize that "goto foo; foo:" is elidable.

>However, in the common ordinary program, I think it's cleaner to do something
>like this: [statements common to more than one case factored out to a
>subprocedure]

I just had this situation occur.  I haven't yet factored it out (the code in
question modifies register variables), but I'll probably either do that or
emulate Zahn exits.

Karl W. Z. Heuer (ima!haddock!karl or karl@haddock.isc.com), The Walking Lint