Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!jarthur!aqdata!sullivan
From: sullivan@aqdata.uucp (Michael T. Sullivan)
Newsgroups: comp.lang.c
Subject: Re: Enumerated types... what's the point?
Message-ID: <1990Mar23.234509.21638@aqdata.uucp>
Date: 23 Mar 90 23:45:09 GMT
References: <8578@pt.cs.cmu.edu>
Distribution: usa
Organization: aQdata, Inc.  Western Region -- San Dimas, CA
Lines: 25

I missed the beginning of this discussion so forgive me if this has
been gone over but has anybody mentioned the assignment of clashing
enum variables?  For instance:

typedef enum { red, green, brown, yellow } colors;
typedef enum { huey, dewey, louie } ducks;

main()
{
colors	a;
ducks	b;

	a = red;
	b = huey;
	a = 1
	a = b;
}

produces a compiler error at "a = 1" and "a = b".  This makes sure people 
can't make an end run around the values a given variable should have,
which they could easily do if #define's were used for the values.
-- 
Michael Sullivan          uunet!jarthur!aqdata!sullivan
aQdata, Inc.              sullivan@aqdata.uucp
San Dimas, CA             +1 714 599 9992