Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!mailrus!cornell!rochester!bbn!mit-eddie!uw-beaver!uw-june!uw-entropy!dataio!bright
From: bright@Data-IO.COM (Walter Bright)
Newsgroups: comp.lang.c
Subject: Re: enums
Message-ID: <1613@dataio.Data-IO.COM>
Date: 22 Jul 88 18:32:21 GMT
References: <1608@dataio.Data-IO.COM> <469@m3.mfci.UUCP>
Reply-To: bright@dataio.Data-IO.COM (Walter Bright)
Organization: Data I/O Corporation; Redmond, WA
Lines: 13

In article <469@m3.mfci.UUCP> karzes@mfci.UUCP (Tom Karzes) writes:
<If you define an enum with a long list of values, a natural thing to want
<to do is determine the number of values in the enum (sort of like sizeof).
<    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
<and hope that people correctly update this macro every time they add or
<delete a tree.
<Does ANSI C provide a reasonable way to do this?

I use:
	enum tree {oak,elm,maple,birch,willow,cypress,spruce,TREE_COUNT};