From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: An interesting quote on Java and C++
Date: 1997/09/20
Date: 1997-09-20T00:00:00+00:00 [thread overview]
Message-ID: <dewar.874759791@merv> (raw)
In-Reply-To: 34218E68.63D5@gsg.eds.com
Robert A Duff wrote:
>
> How about integers? The Java standard nails down integers pretty
> precisely (exactly 8, 16, 32, and 64-bit arithmetic, with wraparound on
> overflow). Does anybody know whether Java implementations obey this?
> Are there any Java implementations on machines where the word size would
> make this inconvenient?
Note that in Ada, wrap around (modular) types *do* have completely portable
semantics, although in practice people will choose types that match thei
hardware, and efficiency may not be completely portable (the same effect
you see in Java, where clearly 8,16,32,64 are picked not because the world
is full of situations where the domain model requires such types, but because
that's what Sun could implement efficiently.
next prev parent reply other threads:[~1997-09-20 0:00 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-03 0:00 An interesting quote on Java and C++ Nasser
1997-09-03 0:00 ` Samuel Mize
[not found] ` <01bcb881$915526a0$d7000064@sim01.amst.co.at>
1997-09-03 0:00 ` Robert Munck
1997-09-05 0:00 ` Joachim Schroeer
1997-09-06 0:00 ` Robert Dewar
1997-09-24 0:00 ` Shmuel (Seymour J.) Metz
1997-09-08 0:00 ` Robert A Duff
1997-09-09 0:00 ` Robert Munck
1997-09-10 0:00 ` Robert A Duff
1997-09-10 0:00 ` Robert Munck
1997-09-11 0:00 ` Robert Dewar
1997-09-12 0:00 ` Robert A Duff
1997-09-18 0:00 ` Shmuel (Seymour J.) Metz
1997-09-19 0:00 ` Robert A Duff
1997-09-20 0:00 ` Robert Dewar
1997-09-20 0:00 ` Robert Dewar
1997-10-03 0:00 ` Robert I. Eachus
1997-09-20 0:00 ` Robert Dewar [this message]
1997-09-22 0:00 ` Robert A Duff
1997-09-12 0:00 ` Jon S Anthony
1997-09-10 0:00 ` Stephen Leake
1997-09-11 0:00 ` Roy Grimm
1997-09-12 0:00 ` Robert A Duff
1997-09-12 0:00 ` Jon S Anthony
1997-09-11 0:00 ` Robert Dewar
1997-09-12 0:00 ` Jon S Anthony
1997-09-12 0:00 ` Robert A Duff
-- strict thread matches above, loose matches on Subject: below --
1997-09-25 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1997-09-25 0:00 ` Shmuel (Seymour J.) Metz
1997-09-26 0:00 ` Tucker Taft
1997-10-07 0:00 ` Robert I. Eachus
1997-11-19 0:00 ` Shmuel (Seymour J.) Metz
1997-10-08 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1997-10-09 0:00 ` Shmuel (Seymour J.) Metz
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