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From: lvc@danews.UUCP (Larry Cipriani)
Newsgroups: net.lang.c
Subject: Re: Switch case common code - (without a function)
Message-ID: <143@danews.UUCP>
Date: Tue, 24-Jun-86 09:11:19 EDT
Article-I.D.: danews.143
Posted: Tue Jun 24 09:11:19 1986
Date-Received: Thu, 26-Jun-86 04:21:44 EDT
References: <605@cisden.UUCP> <134@danews.UUCP> <953@mmm.UUCP>
Organization: AT&T Bell Labs, Columbus OH
Lines: 40

> int common_stuff()
> {
> 	blahblahblah
> }
> 
> main()
> {
> ...
> 	switch (thnad) {
> 	case A:
> 		do the A stuff;
> 		common_stuff();
> 		break;
> 	case B:
> 		do the B stuff;
> 		common_stuff();
> 		break;
> 	case C:
> 		do the C stuff;
> 		break;
> 	}
> 
> I thought that's what functions were for.
> 
> 	--MKR

One of the requirements of the original request is that
a function not be used.

A reason not to use a function is that the scoping rules
get in the way, and force one to either use lots of global
varibles (yuck) or pass the function addresses of variables
and manipulate them through indirection (still yucky).

Another is that in a realtime process you might want to keep
the number of function calls to a minimum.
-- 

Larry Cipriani		AT&T Network Systems
danews!lvc		"Nothing is worse than an itch you can never scratch."