Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!ames!think!samsung!uunet!crdgw1!sixhub!davidsen
From: davidsen@sixhub.UUCP (Wm E. Davidsen Jr)
Newsgroups: comp.lang.c
Subject: Re: typedef vs define
Message-ID: <639@sixhub.UUCP>
Date: 17 Mar 90 21:03:42 GMT
References: <82@demott.COM>
Reply-To: davidsen@sixhub.UUCP (bill davidsen)
Organization: *IX Public Access UNIX, Schenectady NY
Lines: 21

In article <82@demott.COM> kdq@demott.COM (Kevin D. Quitt) writes:

|     Someone posted on this subject a very clear eaxmple of things that
| could be done with typedefs that couldn't be done with defines.  

  I don't have it handy, but here are a few.

typedef int *IPTR;		/* all items will be pointer to int */

typedef int SVECT[5];		/* type "array length five of int" */

  A define won't allow you to do those so you could say:

IPTR dmo1, *dmo2, dmo3[5];

SVECT xmpl1, *xmpl2, *xmpl3[5];
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc
"Getting old is bad, but it beats the hell out of the alternative" -anon