Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!think!barmar
From: barmar@think.COM (Barry Margolin)
Newsgroups: comp.lang.c
Subject: Re: enums
Message-ID: <24261@think.UUCP>
Date: 21 Jul 88 02:23:09 GMT
References: <1608@dataio.Data-IO.COM> <469@m3.mfci.UUCP>
Sender: usenet@think.UUCP
Reply-To: barmar@kulla.think.com.UUCP (Barry Margolin)
Organization: Thinking Machines Corporation, Cambridge, MA
Lines: 33

In article <469@m3.mfci.UUCP> karzes@mfci.UUCP (Tom Karzes) writes:
>    enum tree {
>        oak,
>        elm,
>        maple,
>        birch,
>        willow,
>        cypress,
>        spruce
>    };
>
>Now I'd like to define TREE_COUNT to be the number of trees.  So I have to
>painfully count them, and write:
>
>    #define TREE_COUNT 7

How about

enum tree {
    oak, elm, maple, birch, willow, cypress, spruce,

    TREE_COUNT /* must always be last */
}

?  The only problem with this is if you're into strong typing; the
count of trees isn't actually a kind of tree.  But since you're
programming in C we can assume that you aren't fanatical about such
things.

Barry Margolin
Thinking Machines Corp.

barmar@think.com
{uunet,harvard}!think!barmar