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- From: catherine.jean@di.epfl.ch (Catherine Jean)
- Newsgroups: comp.object,comp.lang.c++,comp.software-eng,comp.lang.ada,comp.lang.misc,ch.general,ch.si.choose,ch.si.general,epfl.general,di.general,di.lgl,comp.lang.eiffel
- Subject: The darker side of C++ -- Announcement
- Keywords: C++, object-oriented languages
- Message-ID: <1993Jan11.162025@lglsun.epfl.ch>
- Date: 11 Jan 93 15:20:25 GMT
- Sender: news@disuns2.epfl.ch
- Followup-To: comp.object
- Distribution: ch
- Organization: Ecole Polytechnique Federale de Lausanne
- Lines: 74
- Nntp-Posting-Host: lglsun6.epfl.ch
-
-
-
- Swiss Federal Institute of Technology in Lausanne
- Department of Computer Science
- Software Engineering Laboratory
-
-
-
- ANNOUNCEMENT OF A LECTURE
-
-
- -- "THE DARKER SIDE OF C++" --
-
- Wednesday, January 27, 1993
- 15.15 o'clock (end at 17.00 at the latest)
-
-
- Ecole Polytechnique Federale de Lausanne - Site Ecublens
- Batiments du Departement d'informatique - room INR 219
-
-
- by MARKKU SAKKINEN, University of Jyvaskyla, Finland
-
-
- About the lecturer:
- ------------------
- Markku Sakkinen is a member of the Department of Computer Science and
- Information Systems, University of Jyvaskyla, Finland. He has been an
- active researcher in object-oriented programming since 1988, with
- several published papers in international journals and conference
- proceedings. He has been on the programme committees of ECOOP'91,
- EastEurOOPe'91, ECOOP'92 and ECOOP'93, and reviewed papers for other
- conferences and journals.
-
- Content:
- -------
- The talk is mostly based on paper [1] augmented by ideas from [2].
- Because of its C heritage, C++ is both weakly typed and weakly
- structured. Because of the basic design decisions that were made in its
- object-oriented extensions, I claim that C++ is also weakly
- object-oriented. I will discuss several aspects and consequences of
- what I call the Fundamental Defect: that objects do not carry
- inambiguous type information at run time, in contrast to almost all
- other OO languages. The undisciplined handling of pointers (as in C)
- makes the problems worse. I will also mention some interesting problems
- of multiple inheritance, mostly pertaining to the distinction between
- "virtual" and "non-virtual" base classes (superclasses). Several other
- features and their problems will be mentioned, such as: reference types
- and argument passing, nested classes, storage classes and garbage
- collection, overloading, assignment and copying, templates (genericity)
- and exceptions.
-
- The worst disadvantage of C++ at the moment is political: accepting
- C++ as the standard OO language de facto tends to kill other existing
- languages, and stifle the development of a new generation of
- essentially better OO languages.
-
- Ample time will be left for questions and discussion after the
- lecture. That allows us to look at some details that really interest
- the audience. Also, many of my opinions are controversial, and I do
- not expect all listeners to accept them quietly.
-
- References:
- ----------
- [1] Markku Sakkinen, "The Darker Side of C++ Revisited", which appeared
- in Structured Programming, Vol. 13 No. 4 (1992).
-
- [2] Markku Sakkinen, "A Critique of the Inheritance Principles of C++",
- in Computing Systems, Vol. 5 No. 1 (1992).
-
-
- For further information:
- -----------------------
- Catherine Jean -- catherine.jean@di.epfl.ch
-