From: jordan@aero.org (Larry M. Jordan)
Subject: Re: ada-c++ productivity
Date: 15 Mar 91 22:46:26 GMT [thread overview]
Message-ID: <1991Mar15.224626.27077@aero.org> (raw)
In-Reply-To: EACHUS.91Mar14190050@aries.mitre.org
"Something's" missing from this definition of OOP--Dynamic binding.
(also, OOPs don't require classes--see SELF). I'd say we dismiss
the term OOP and talk about langs in term of features.
Inh. and dyn. binding are not enough. There are other language
features I find desirable--parameterized types and exceptions. What
about library management? What about environements with integrated
debuggers? (I'd sure hate to build anything bigger than a hello world
program without a library manager. ). Some may finding tasking essential.
I did a comparison of lang. features a while back. Some may find
this interesting.
Language Inheritance DynamicBnd'g Type[T] Except. Task LibMgr
C++ yes-MI/class yes-vft no[1] no[2] no hand
Objective-C yes-SI/class yes-tlu no no no hand
Smalltalk yes-SI/class yes-tlu no no no ?
SELF yes-MI/object yes-? no no no ?
TP6.0 yes-SI/class yes-vft no no no auto
Eiffel yes-MI/class yes-vft yes yes no auto
Ada yes[3] no no[4] yes yes auto
MI=mult. inh.
SI=single inh.
vft=virtual function tables
tlu=run-time table lookup with caching
class=class-based inh.
object=object-based inh.
hand=hand crank a make file
auto=automated
?=don't know
[1] available next version
[2] available next version?
[3] derived types are not assignment compatible without casting.
[4] parameterized procedures and packages but not types
I hate the C'ness of C++, but I find myself implementing many things in
C++ just because of inheritance and dynamic binding. If Ada is ever
to become mainstream (and I seriously hope it does) inheritance and
dyn. binding had better be incorporated into the language.
--Larry
next prev parent reply other threads:[~1991-03-15 22:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
1991-03-07 16:31 ada-c++ productivity Craig C Johnson
1991-03-08 20:58 ` Jim Showalter
1991-03-10 15:12 ` Joachim Wiese
1991-03-13 23:12 ` Joe Buck
1991-03-15 1:00 ` Robert I. Eachus
1991-03-15 22:46 ` Larry M. Jordan [this message]
1991-03-16 0:06 ` Craig Chambers
1991-03-16 20:52 ` Ted Holden
1991-03-17 8:38 ` MUNTS PHILLIP A
1991-03-17 14:27 ` Ralph Reid III
1991-03-17 20:26 ` csq031
1991-03-18 4:57 ` Michael Feldman
1991-03-18 13:25 ` Matthew S. Granger
1991-03-18 23:17 ` Paul Stachour
1991-03-19 21:17 ` Jim Showalter
1991-03-19 16:14 ` klimas
1991-03-25 22:01 ` Terry J. Westley
1991-03-18 2:12 ` Jim Showalter
1991-03-18 18:13 ` arny.b.engelson
1991-03-19 7:44 ` Jim Showalter
1991-03-18 22:12 ` martin
1991-03-16 19:02 ` Ralph Johnson
1991-03-19 16:40 ` klimas
1991-03-21 3:12 ` Jim Showalter
1991-03-17 0:47 ` Jim Showalter
1991-03-18 23:55 ` adam
1991-03-25 12:42 ` Steven D. Litvinchouk
1991-03-17 0:40 ` Jim Showalter
-- strict thread matches above, loose matches on Subject: below --
1991-03-18 15:27 simonian richard 66449
[not found] <668465900@<jls>
1991-03-20 14:03 ` ryer
1991-03-21 15:26 ` Gary W Smith
1991-03-21 18:50 ` Depriest
1991-03-26 2:32 ` Jim Showalter
1991-03-26 14:57 ` Michael Feldman
1991-03-27 3:09 ` Jim Showalter
1991-03-29 20:30 ` ryer
1991-04-01 14:15 ` Depriest
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