From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Interface/Implementation (was Re: Design by Contract)
Date: 1997/09/17
Date: 1997-09-17T00:00:00+00:00 [thread overview]
Message-ID: <dewar.874471283@merv> (raw)
In-Reply-To: EGL26C.38G@syd.csa.com.au
Don said
<<Not quite. Unlike if-statements, you can actually *do without* prior
declarations. So, the analogy is a spurious one.
(Perhaps we'll hear from someone claiming they can get by with just
case-statements! :)>>
No you can't, you lose critical functionality if you do not have prior
declarations, namely the capability of mutual recursion.
And in actual practice, the likelihood of finding Ada written without
prior declarations is NOT in fact any greater than that of finding
Ada with no if statements. I don't know if you have written Ada or not,
if you have, and have really tried to write without prior declarations,
then all I can say is that your style is
(a) peculiar
(b) undesirable
(c) dissimilar to any other Ada code I have seen
I would make the same statement about lack of if statements ( it is of
COURSE possible to use case statements everywhere instead of if statements,
but no one would do it, to me it is a perfect analogy).
next prev parent reply other threads:[~1997-09-17 0:00 UTC|newest]
Thread overview: 185+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <01bcb389$24f579d0$1c10d30a@ntwneil>
1997-08-28 0:00 ` Interface/Implementation (was Re: Design by Contract) Tucker Taft
1997-08-29 0:00 ` Paul Johnson
1997-08-29 0:00 ` Jon S Anthony
[not found] ` <EFqDC8.342@ecf.toronto.edu>
1997-09-02 0:00 ` Samuel Mize
1997-09-03 0:00 ` Paul Johnson
1997-09-03 0:00 ` Patrick Doyle
1997-09-03 0:00 ` Samuel Mize
[not found] ` <EFyrH2.7z2@syd.csa.com.au>
1997-09-04 0:00 ` Joerg Rodemann
1997-09-05 0:00 ` Don Harrison
[not found] ` <340fdb9f.0@news.uni-ulm.de>
1997-09-06 0:00 ` Joachim Durchholz
1997-09-06 0:00 ` Joachim Durchholz
1997-09-04 0:00 ` W. Wesley Groleau x4923
1997-09-05 0:00 ` Don Harrison
1997-09-05 0:00 ` W. Wesley Groleau x4923
1997-09-06 0:00 ` Joachim Durchholz
1997-09-09 0:00 ` Robert Dewar
1997-09-09 0:00 ` Richard Kenner
1997-09-10 0:00 ` Tucker Taft
1997-09-10 0:00 ` One pass compilation? W. Wesley Groleau x4923
1997-09-10 0:00 ` Interface/Implementation (was Re: Design by Contract) Joachim Durchholz
1997-09-10 0:00 ` Nick Leaton
1997-09-10 0:00 ` W. Wesley Groleau x4923
1997-09-11 0:00 ` Code ordering Steve Furlong
1997-09-12 0:00 ` Interface/Implementation (was Re: Design by Contract) Robert Dewar
1997-09-12 0:00 ` Nick Leaton
1997-09-11 0:00 ` Robert Dewar
1997-09-05 0:00 ` Jon S Anthony
1997-09-06 0:00 ` Fergus Henderson
1997-09-06 0:00 ` Jon S Anthony
1997-09-08 0:00 ` Robert Dewar
1997-09-11 0:00 ` Don Harrison
1997-09-08 0:00 ` Robert Dewar
1997-09-11 0:00 ` Don Harrison
1997-09-12 0:00 ` Robert Dewar
1997-09-05 0:00 ` Patrick Doyle
1997-09-05 0:00 ` W. Wesley Groleau x4923
1997-09-06 0:00 ` Patrick Doyle
1997-09-05 0:00 ` Jon S Anthony
1997-09-06 0:00 ` Patrick Doyle
1997-09-06 0:00 ` Jon S Anthony
1997-09-05 0:00 ` Matthew Heaney
1997-09-06 0:00 ` Patrick Doyle
1997-09-06 0:00 ` Matthew Heaney
1997-09-07 0:00 ` Patrick Doyle
1997-09-07 0:00 ` Matthew Heaney
1997-09-10 0:00 ` Don Harrison
1997-09-10 0:00 ` Patrick Doyle
1997-09-16 0:00 ` Don Harrison
1997-09-18 0:00 ` Robert Dewar
1997-09-18 0:00 ` Shmuel (Seymour J.) Metz
1997-09-20 0:00 ` Robert Dewar
1997-09-10 0:00 ` Tucker Taft
1997-09-10 0:00 ` Matthew Heaney
1997-09-10 0:00 ` Patrick Doyle
1997-09-12 0:00 ` Robert Dewar
1997-09-13 0:00 ` Patrick Doyle
1997-09-11 0:00 ` Lee Webber
1997-09-15 0:00 ` W. Wesley Groleau x4923
1997-09-12 0:00 ` Don Harrison
1997-09-10 0:00 ` Don Harrison
1997-09-12 0:00 ` Robert Dewar
1997-09-16 0:00 ` Don Harrison
1997-09-17 0:00 ` Robert Dewar
1997-09-10 0:00 ` Samuel Mize
1997-09-10 0:00 ` Samuel Mize
1997-09-11 0:00 ` Don Harrison
1997-09-11 0:00 ` Robert Dewar
1997-09-12 0:00 ` Samuel Mize
1997-09-13 0:00 ` Tucker Taft
1997-09-12 0:00 ` Samuel T. Harris
1997-09-17 0:00 ` Don Harrison
1997-09-18 0:00 ` Robert Dewar
1997-09-10 0:00 ` Matthew Heaney
1997-09-11 0:00 ` Robert Dewar
1997-09-10 0:00 ` Robert Dewar
1997-09-10 0:00 ` Nick Leaton
1997-09-16 0:00 ` Frederic Guerin
1997-09-06 0:00 ` Matthew Heaney
1997-09-06 0:00 ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-06 0:00 ` Jon S Anthony
1997-09-06 0:00 ` Joachim Durchholz
1997-09-08 0:00 ` John G. Volan
1997-09-09 0:00 ` Paul Johnson
1997-09-09 0:00 ` Nick Leaton
1997-09-09 0:00 ` John G. Volan
1997-09-10 0:00 ` Nick Leaton
1997-09-10 0:00 ` Samuel Mize
[not found] ` <dewar.873826570@merv>
1997-09-09 0:00 ` Matthew Heaney
1997-09-11 0:00 ` Robert Dewar
1997-09-07 0:00 ` Robert Dewar
1997-09-08 0:00 ` Patrick Doyle
1997-09-09 0:00 ` Don Harrison
1997-09-09 0:00 ` W. Wesley Groleau x4923
1997-09-10 0:00 ` Robert Dewar
1997-09-11 0:00 ` Don Harrison
1997-09-12 0:00 ` Robert Dewar
1997-09-16 0:00 ` Don Harrison
1997-09-17 0:00 ` Robert Dewar [this message]
1997-09-04 0:00 ` Erik Ernst
1997-09-05 0:00 ` Robert Dewar
1997-09-01 0:00 ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-02 0:00 ` Nick Leaton
1997-09-03 0:00 ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-15 0:00 Marc Wachowitz
1997-09-16 0:00 ` Owen Fellows
-- strict thread matches above, loose matches on Subject: below --
1997-09-12 0:00 Marc Wachowitz
1997-09-12 0:00 ` Joachim Durchholz
1997-09-12 0:00 ` Samuel T. Harris
1997-09-12 0:00 ` Jon S Anthony
1997-09-15 0:00 ` Samuel T. Harris
1997-09-16 0:00 ` Jon S Anthony
1997-09-09 0:00 Marc Wachowitz
1997-09-15 0:00 ` Owen Fellows
1997-10-13 0:00 ` Bill Foote
1997-09-06 0:00 Ell
1997-09-06 0:00 ` Samuel Mize
[not found] <EForKz.FJ7@ecf.toronto.edu>
1997-09-01 0:00 ` Don Harrison
1997-09-02 0:00 ` Don Harrison
1997-08-07 0:00 Safety-critical development in Ada and Eiffel Ken Garlington
1997-08-12 0:00 ` Don Harrison
1997-08-25 0:00 ` Design by Contract Bertrand Meyer
[not found] ` <3402d123.0@news.uni-ulm.de>
1997-08-26 0:00 ` Nick Leaton
[not found] ` <3402e51d.0@news.uni-ulm.de>
[not found] ` <3402E8C9.3384D976@calfp.co.uk>
[not found] ` <dewar.872631036@merv>
[not found] ` <3403F668.F6B57D97@calfp.co.uk>
[not found] ` <34041331.0@news.uni-ulm.de>
[not found] ` <3404696D.4487EB71@eiffel.com>
1997-08-27 0:00 ` Interface/Implementation (was Re: Design by Contract) Bertrand Meyer
[not found] ` <34048FDC.13728473@eiffel.com>
1997-08-27 0:00 ` Bertrand Meyer
1997-08-28 0:00 ` Jon S Anthony
1997-08-29 0:00 ` Robert Dewar
[not found] ` <EForsv.Fqo@ecf.toronto.edu>
[not found] ` <JSA.97Aug29191413@alexandria.organon.com>
[not found] ` <EFqDAG.2zn@ecf.toronto.edu>
1997-08-30 0:00 ` Jon S Anthony
1997-09-02 0:00 ` Don Harrison
1997-09-02 0:00 ` Jon S Anthony
1997-09-03 0:00 ` Don Harrison
[not found] ` <EFwuzD.BxE@ecf.toronto.edu>
1997-09-04 0:00 ` Don Harrison
1997-09-05 0:00 ` Patrick Doyle
1997-09-09 0:00 ` Don Harrison
1997-09-09 0:00 ` W. Wesley Groleau x4923
1997-09-10 0:00 ` Veli-Pekka Nousiainen
1997-09-10 0:00 ` Samuel Mize
1997-09-12 0:00 ` Don Harrison
1997-09-10 0:00 ` Patrick Doyle
1997-09-10 0:00 ` Joerg Rodemann
1997-09-10 0:00 ` Patrick Doyle
1997-09-11 0:00 ` Matt Austern
1997-09-12 0:00 ` Jon S Anthony
1997-09-13 0:00 ` Patrick Doyle
1997-09-10 0:00 ` Joachim Durchholz
1997-09-12 0:00 ` Joerg Rodemann
1997-09-11 0:00 ` Robert S. White
1997-09-11 0:00 ` Don Harrison
1997-09-12 0:00 ` Robert Dewar
1997-09-13 0:00 ` Patrick Doyle
1997-09-12 0:00 ` Jon S Anthony
1997-09-13 0:00 ` Patrick Doyle
1997-09-16 0:00 ` Brian Rogoff
1997-09-04 0:00 ` John G. Volan
1997-09-04 0:00 ` W. Wesley Groleau x4923
1997-09-05 0:00 ` Patrick Doyle
1997-09-05 0:00 ` W. Wesley Groleau x4923
1997-09-06 0:00 ` Patrick Doyle
1997-09-08 0:00 ` Paul Johnson
1997-09-06 0:00 ` Jon S Anthony
1997-09-08 0:00 ` Robert Dewar
1997-09-09 0:00 ` Robert S. White
1997-09-09 0:00 ` Paul Johnson
1997-09-11 0:00 ` Robert Dewar
1997-09-11 0:00 ` Veli-Pekka Nousiainen
1997-09-12 0:00 ` Paul Johnson
1997-09-14 0:00 ` Ken Garlington
1997-09-09 0:00 ` Patrick Doyle
1997-09-09 0:00 ` Matthew Heaney
1997-09-10 0:00 ` Patrick Doyle
1997-09-09 0:00 ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-10 0:00 ` John Viega
1997-09-10 0:00 ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-05 0:00 ` Franck Arnaud
1997-09-05 0:00 ` Patrick Doyle
1997-08-28 0:00 ` Patrick Doyle
1997-08-28 0:00 ` W. Wesley Groleau x4923
1997-08-28 0:00 ` Tucker Taft
1997-08-28 0:00 ` W. Wesley Groleau x4923
1997-08-28 0:00 ` Jon S Anthony
1997-08-29 0:00 ` Suzanne Zampella
1997-08-29 0:00 ` Jon S Anthony
[not found] ` <EFnK8D.Lsv@ecf.toronto.edu>
1997-08-29 0:00 ` Jon S Anthony
1997-08-30 0:00 ` Patrick Doyle
1997-08-30 0:00 ` Jon S Anthony
1997-09-01 0:00 ` Patrick Doyle
[not found] ` <340E9BA2.32B3@rbgg252.rbg1.siemens.de>
1997-09-07 0:00 ` Robert Dewar
[not found] ` <3406A707.787D@dmu.ac.uk>
1997-08-29 0:00 ` Joerg Rodemann
1997-08-29 0:00 ` Ralph Paul
1997-09-01 0:00 ` Don Harrison
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