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From: DMB@PSUVMA.BITNET@ndmce.uucp
Newsgroups: net.lang
Subject: ReExplanation of (x<y<z)
Message-ID: <327@ndmce.uucp>
Date: Fri, 17-Oct-86 17:06:19 EDT
Article-I.D.: ndmce.327
Posted: Fri Oct 17 17:06:19 1986
Date-Received: Tue, 21-Oct-86 05:25:04 EDT
Expires: Mon, 27-Oct-86 22:00:00 EDT
Sender: news@ndmce.uucp
Organization: Nathan D. Maier Consulting Engineers, Dallas
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