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From: Jacob Gore <jacob@blackbox.enmu.edu>
Subject: Re: Eiffel gripe (was Ada vs. Eiffel)
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Message-ID: <1994Sep14.153729.13047@math.enmu.edu>
Date: Wed, 14 Sep 1994 15:37:29 GMT
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Organization: Eastern New Mexico University,
 Department of Mathematical Sciences
Xref: bga.com comp.software-eng:7492 comp.lang.eiffel:1979 comp.lang.ada:5900
Date: 1994-09-14T15:37:29+00:00
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Matt Kennel writes
> What about Sather's iters?  That is the nicest way that I've seen to
> do loops.
> 
> All the "init", "step" and "exit" critera are user-programmable in
> 'iters', which are written like class routines.
> 
> For example,
> 
> loop
>    x := collection.elt!;
>    -- each 'x' is an element of the collection.
> end;

1.  I don't like it when functions have side-effects.

2.  I don't like it when routines alter control in the caller as
    part of their normal behavior (as opposed to exceptions -- REAL
    exceptions, not the use of raise/handle pairs as thinly disguised gotos).

3.  The above example combines the problems of #1 and #2 above with superb
    elegance.

Jacob
---
Jacob Gore, Eastern NM U.   Jacob@BlackBox.ENMU.Edu | Jacob@Gore.Com
Member of the League for Programming Freedom (LPF)--lpf@uunet.uu.net