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From: ok@quintus.uucp (Richard A. O'Keefe)
Newsgroups: comp.lang.c
Subject: Re: enums
Message-ID: <218@quintus.UUCP>
Date: 1 Aug 88 21:54:46 GMT
References: <1608@dataio.Data-IO.COM> <469@m3.mfci.UUCP> <1988Jul22.171612.6225@utzoo.uucp> <5447@ihlpf.ATT.COM> <11686@steinmetz.ge.com> <2404@boulder.Colorado.EDU>
Sender: news@quintus.UUCP
Reply-To: ok@quintus.UUCP (Richard A. O'Keefe)
Organization: Quintus Computer Systems, Inc.
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In article <2404@boulder.Colorado.EDU>
swarbric@tramp.Colorado.EDU (Frank Swarbrick) writes:
:Personally, I would like it to be even a little more like Pascal.
:Let's say I have
:	typedef enum {red, white, blue} flag_colors;
:I would like:
:	flag_colors flag;
:	flag = blue;
:	flag++;
:to have it so flag is now red.
:This is like Pascal's succ() and pred() operators.

No it isn't.  The Pascal fragment
	var: flag: (red, white, blue);
	...
	flag := blue;	
	flag := succ(blue);
is *illegal* and any half-way decent Pascal system will give you a
run-time error if you try it.  (It's just the same in Ada.)