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From: david.c.hoos.sr@ada95.com (David C. Hoos)
Newsgroups: comp.lang.ada
Subject: Re: Minimum Record Size?  LONG
Date: 25 Apr 2003 20:00:05 -0700
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<tmoran@acm.org> wrote in message news:H5iqa.621548$L1.175962@sccrnsc02...
> >Here is an approach that, while verbose, is written to be understandable
> >by the reader.
>   If the reader is careful and willing to study a shorter piece of code,
> then, in the spirit of the OP's first try
<snip>
> we can modify the function to:
> >  function Four_Sixes_To_Three_Eights (X : Four_Sixes)
> >    return Three_Eights
> >  is
> >  begin
>      return (1=>  Eight(x(1))*4          + Eight(x(2))/16,
>              2=> (Eight(x(2)) mod 16)*16 + Eight(x(3))/4,
>              3=> (Eight(x(3)) mod 4)*64  + Eight(x(4)));
> >  end Four_Sixes_To_Three_Eights;

Very nice.  I overlooked the fact that arithmetic operations
instead of shifts and masks would take care of the endianness problem
in a very elegant way.