Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!columbia!rutgers!sri-spam!sri-unix!hplabs!sdcrdcf!burdvax!psuvax1!psuvm.bitnet!dmb
From: DMB@PSUVMA.BITNET
Newsgroups: net.lang
Subject: ReExplanation of (x<y<z)
Message-ID: <7871DMB@PSUVMA>
Date: Mon, 13-Oct-86 10:21:11 EDT
Article-I.D.: PSUVMA.7871DMB
Posted: Mon Oct 13 10:21:11 1986
Date-Received: Wed, 15-Oct-86 21:39:03 EDT
Expires: Tue, 28-Oct-86 00:00:00 EDT
Lines: 20


   Sorry I guess the question wasn't which languages support it, but why
most of the major ones don't?


                   Isn't it a direct translation from
                   if (x<y<z) then   ... to ... if (x<y) and (y<z) ...

Thus the optimization arguement isn't valid.

   One grows tired of writing,

   if (thepoint[xdir,ydir].threepoint.x < 5) and
      (thepoint[xdir,ydir].threepoint.x > 1) then

  or some similarly boolean expression.



                                       dave brosius