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From: Robb Nebbe <nebbe@iam.unibe.ch>
Subject: Re: To overload or not to overload (was Eiffel and Java + Ada dispatching)
Date: 1996/11/06
Date: 1996-11-06T00:00:00+00:00	[thread overview]
Message-ID: <32805D4D.77B6@iam.unibe.ch> (raw)
In-Reply-To: E0Fq8E.LJJ@syd.csa.com.au


To overload or not to overload is not the question IMO.
Overloading is a language mechanism that Ada has and Eiffel
doesn't; this is an apples and oranges problem. The real question
is how do languages figure out which method should be invoked.

Ignoring scoping rules we see that:

C uses just the name.

Eiffel uses the name and the type of one of the parameters.

Ada uses the name and the type of all the parameters.


C is broken. When you program in C you have to come up with naming
schemes to avoid identifier clashes. Eiffel and Ada work just
fine. If Eiffel truly used just the name and nothing more then not
only would every routine of every class have to have a different
name but polymorphism would be impossible. 

Languages are essentially sets of mechanisms. You seem to be
claiming that Ada has one mechanism and Eiffel doesn't when in
fact even though Eiffel doesn't have the same mechanism it does
have one that overlaps.

Robb




  reply	other threads:[~1996-11-06  0:00 UTC|newest]

Thread overview: 162+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-10-27  0:00 Eiffel and Java Vincent WEBER
1996-10-27  0:00 ` Jean-Michel P. Decombe
1996-10-28  0:00   ` Robert Dewar
1996-10-31  0:00     ` Doug Marker
1996-10-28  0:00   ` Alexandre Oliva
1996-10-28  0:00   ` David Hanley
1996-10-28  0:00     ` Matt Kennel
1996-10-29  0:00   ` Chris Trimble
1996-10-31  0:00     ` Doug Marker
1996-10-31  0:00   ` David Bennett
1996-10-28  0:00 ` Matthew Heaney
1996-10-29  0:00   ` Vincent WEBER
1996-10-31  0:00     ` James McKim
1996-11-01  0:00       ` Matthew Heaney
1996-11-04  0:00         ` James McKim
1996-10-30  0:00   ` Jon S Anthony
1996-11-01  0:00     ` Eiffel and Java + Ada dispatching Jean-Marc Jezequel
1996-10-30  0:00   ` Eiffel and Java Don Harrison
1996-10-31  0:00     ` James McKim
1996-11-04  0:00       ` Don Harrison
1996-11-23  0:00       ` Van Snyder
1996-10-31  0:00   ` Joachim Durchholz
1996-11-01  0:00   ` Norman H. Cohen
1996-11-02  0:00   ` Eiffel and Java + Ada dispatching Jon S Anthony
1996-11-02  0:00   ` Eiffel and Java Jon S Anthony
1996-11-03  0:00   ` Joachim Durchholz
1996-11-05  0:00   ` Norman H. Cohen
1996-10-28  0:00 ` Larry Kilgallen
1996-10-30  0:00   ` Ronald Cole
1996-10-29  0:00 ` Don Harrison
1996-10-29  0:00   ` Eiffel and Java + Ada dispatching Vincent WEBER
1996-10-30  0:00     ` Don Harrison
1996-10-30  0:00       ` Jon S Anthony
1996-10-30  0:00     ` Jean-Marc Jezequel
1996-11-01  0:00       ` Don Harrison
1996-11-01  0:00       ` Joachim Durchholz
1996-10-29  0:00   ` Eiffel and Java Fergus Henderson
1996-10-30  0:00     ` Don Harrison
1996-10-30  0:00       ` Fergus Henderson
1996-10-31  0:00     ` David L. Shang
1996-11-01  0:00       ` Matt Kennel
1996-11-04  0:00         ` David L. Shang
1996-11-05  0:00           ` Matt Kennel
1996-11-06  0:00             ` David L. Shang
1996-11-04  0:00       ` Robert I. Eachus
1996-11-01  0:00     ` Jon S Anthony
1996-11-02  0:00       ` Fergus Henderson
1996-11-04  0:00       ` David L. Shang
1996-11-05  0:00         ` Jon S Anthony
1996-11-02  0:00     ` Darko BUDOR
1996-11-02  0:00       ` Fergus Henderson
1996-11-03  0:00         ` Matt Kennel
1996-11-03  0:00         ` Darko BUDOR
1996-11-03  0:00     ` Jon S Anthony
1996-11-03  0:00     ` Matthias Ernst
1996-11-05  0:00     ` Jon S Anthony
1996-11-10  0:00     ` Marcos F. F. de Macedo
1996-11-11  0:00       ` David L. Shang
1996-11-12  0:00         ` Fergus Henderson
1996-11-12  0:00           ` David L. Shang
1996-11-12  0:00             ` David L. Shang
1996-11-16  0:00             ` Fergus Henderson
1996-11-18  0:00               ` David L. Shang
1996-11-18  0:00             ` Kai Quale
1996-11-18  0:00               ` David L. Shang
1996-11-25  0:00                 ` Kai Quale
1996-11-15  0:00         ` Paul Johnson
1996-11-12  0:00       ` Alexander Asteroth
1996-11-11  0:00         ` Marcos F. F. de Macedo
1996-11-12  0:00         ` Matt Kennel
1996-11-12  0:00         ` Benedict A. Gomes
1996-10-30  0:00   ` Eiffel and Java + Ada dispatching Robert I. Eachus
1996-10-30  0:00   ` Eiffel and Java David Petrie Stoutamire
1996-10-30  0:00   ` Eiffel and Java + Ada dispatching Jon S Anthony
1996-11-04  0:00     ` Don Harrison
1996-11-04  0:00       ` C to Ada Ali Mirhosseini
1996-11-04  0:00         ` Robert Dewar
1996-11-04  0:00         ` Matthew Daniel
1996-11-05  0:00       ` Eiffel and Java + Ada dispatching Jon S Anthony
1996-11-05  0:00         ` Don Harrison
1996-11-06  0:00           ` Jon S Anthony
1996-10-31  0:00   ` Jon S Anthony
1996-11-01  0:00     ` Jean-Marc Jezequel
     [not found]     ` <E06F2B.Az7@syd.csa.com.au>
1996-11-01  0:00       ` Jon S Anthony
1996-11-04  0:00         ` Don Harrison
1996-11-05  0:00           ` Jon S Anthony
1996-11-02  0:00       ` Robert Dewar
1996-11-04  0:00         ` Norman H. Cohen
1996-11-05  0:00         ` Don Harrison
1996-11-05  0:00           ` Joachim Durchholz
1996-11-05  0:00           ` Robb Nebbe
1996-11-06  0:00             ` Jean-Marc Jezequel
1996-11-07  0:00               ` Robb Nebbe
1996-11-06  0:00             ` To overload or not to overload (was Eiffel and Java + Ada dispatching) Don Harrison
1996-11-06  0:00               ` Robb Nebbe [this message]
1996-11-07  0:00                 ` Don Harrison
1996-11-07  0:00                   ` Jon S Anthony
1996-11-07  0:00                   ` Juergen Schlegelmilch
1996-11-08  0:00                     ` Don Harrison
1996-11-08  0:00                       ` Don Harrison
1996-11-14  0:00                         ` Jon S Anthony
1996-11-14  0:00                     ` Jon S Anthony
1996-11-07  0:00                   ` Jon S Anthony
1996-11-11  0:00                     ` Don Harrison
1996-11-08  0:00                   ` bill.williams
1996-11-11  0:00                     ` Don Harrison
1996-11-07  0:00                 ` Norman H. Cohen
1996-11-08  0:00             ` Eiffel and Java + Ada dispatching Robert I. Eachus
1996-11-06  0:00           ` Robert I. Eachus
1996-11-08  0:00             ` Don Harrison
1996-11-08  0:00               ` Robert A Duff
1996-11-12  0:00                 ` Don Harrison
1996-11-12  0:00                   ` Joachim Durchholz
1996-11-15  0:00                     ` Richard Riehle
1996-11-16  0:00                     ` Interfacing contracts (Was: Eiffel and Java + Ada dispatching) Geert Bosch
1996-11-17  0:00                       ` Robert A Duff
1996-11-12  0:00                   ` Eiffel and Java + Ada dispatching Robert A Duff
1996-11-13  0:00                     ` Don Harrison
1996-11-13  0:00                       ` Robert A Duff
1996-11-14  0:00                         ` Don Harrison
1996-11-13  0:00                       ` Jon S Anthony
1996-11-15  0:00                         ` Don Harrison
1996-11-19  0:00                           ` Jon S Anthony
1996-11-20  0:00                             ` Don Harrison
1996-11-08  0:00               ` Jon S Anthony
1996-11-14  0:00               ` Robert I. Eachus
1996-11-14  0:00                 ` Robert A Duff
1996-11-15  0:00                 ` Don Harrison
1996-11-15  0:00                   ` Robert I. Eachus
1996-11-19  0:00                     ` Don Harrison
1996-11-18  0:00                       ` Vincent Celier
1996-11-22  0:00                         ` Don Harrison
1996-11-19  0:00                 ` Jon S Anthony
1996-11-15  0:00               ` portmanteau (was Re: Eiffel and Java + Ada dispatching) Robert I. Eachus
1996-11-07  0:00           ` Eiffel and Java + Ada dispatching Robb Nebbe
1996-11-07  0:00           ` Jon S Anthony
1996-11-12  0:00           ` Jon S Anthony
1996-10-31  0:00   ` Joachim Durchholz
1996-11-01  0:00   ` Eiffel and Java Matthias Ernst
1996-11-01  0:00     ` Benedict A. Gomes
1996-11-01  0:00     ` William Clodius
1996-11-02  0:00   ` Eiffel and Java + Ada dispatching Jon S Anthony
1996-11-02  0:00   ` Jon S Anthony
1996-11-04  0:00   ` Eiffel and Java Robert I. Eachus
1996-10-30  0:00 ` Jon S Anthony
1996-11-01  0:00   ` Don Harrison
1996-11-01  0:00     ` Jon S Anthony
1996-11-07  0:00       ` Marcos F. F. de Macedo
1996-11-11  0:00         ` Ian Joyner
1996-11-12  0:00         ` Don Harrison
1996-11-13  0:00           ` Norman H. Cohen
1996-11-15  0:00             ` Don Harrison
1996-11-14  0:00           ` Jon S Anthony
1996-11-15  0:00             ` Don Harrison
1996-11-19  0:00               ` Jon S Anthony
1996-11-21  0:00                 ` Don Harrison
1996-11-12  0:00     ` Jon S Anthony
1996-10-31  0:00 ` Joachim Durchholz
1996-11-01  0:00 ` Jon S Anthony
1996-11-02  0:00 ` Jon S Anthony
1996-11-03  0:00 ` Eiffel and Java + Ada dispatching Joachim Durchholz
1996-11-04  0:00 ` Eiffel and Java Richard A. O'Keefe
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