From: Xavier Leroy <xavier.leroy@inria.fr>
To: Sven LUTHER <luther@dpt-info.u-strasbg.fr>
Cc: John Carr <jfc@MIT.EDU>, Alessandro Baretta <alex@baretta.com>,
Ocaml <caml-list@inria.fr>
Subject: Re: [Caml-list] Runtime overflow and what to do
Date: Sun, 13 Oct 2002 11:31:30 +0200 [thread overview]
Message-ID: <20021013113130.L13771@pauillac.inria.fr> (raw)
In-Reply-To: <20021012165831.GA4700@iliana>; from luther@dpt-info.u-strasbg.fr on Sat, Oct 12, 2002 at 06:58:31PM +0200
> BTW, i compile the sparc debian package on a sparc64 box which
> advertizes as a sparc box. Will i get access to the 64 bit integers in
> this case or not ?
The short answer is: it depends on the C compiler. Caml integers
correspond to the C "long int" type, with one bit reserved for GC
purposes. So, if the C compiler maps "long int" to 64-bit integers,
you get 63-bit Caml ints; if it chooses 32-bit integers for "long int",
you get 31-bit Caml ints. Often, this can be controlled via flags to
the C compiler.
The above is for the bytecode interpreter. For the native-code
compiler, the current Sparc code emitter mandates 32-bit integers.
- Xavier Leroy
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next prev parent reply other threads:[~2002-10-13 9:31 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-10 15:01 Scott J,
2002-10-10 15:07 ` Maxence Guesdon
2002-10-10 15:11 ` Maxence Guesdon
2002-10-10 15:21 ` Luc Maranget
2002-10-10 18:13 ` Sven LUTHER
2002-10-10 18:57 ` Xavier Leroy
2002-10-10 22:17 ` Scott J,
2002-10-11 8:00 ` Sven LUTHER
2002-10-11 10:16 ` Alessandro Baretta
2002-10-12 16:13 ` John Carr
2002-10-12 16:58 ` Sven LUTHER
2002-10-12 17:12 ` John Prevost
2002-10-13 9:31 ` Xavier Leroy [this message]
2002-10-13 9:52 ` Sven LUTHER
2002-10-13 9:57 ` Xavier Leroy
2002-10-13 10:15 ` Sven LUTHER
2002-10-13 13:25 ` John Carr
2002-10-13 9:28 ` Xavier Leroy
2002-10-14 0:56 ` Chris Hecker
2002-10-14 9:46 ` Jacques Garrigue
2002-10-14 11:02 ` Scott J,
2002-10-14 14:05 ` Tim Freeman
2002-10-14 15:32 ` Stefano Zacchiroli
2002-10-14 16:12 ` Alain Frisch
2002-10-14 16:49 ` [Caml-list] new ocaml switches (was Re: Runtime overflow and what to do) Chris Hecker
2002-10-13 9:25 ` [Caml-list] Runtime overflow and what to do Xavier Leroy
2002-10-13 10:04 ` Daniel de Rauglaudre
2002-10-13 10:29 ` Pierre Weis
2002-10-13 10:47 ` Daniel de Rauglaudre
2002-10-13 12:38 ` Pierre Weis
2002-10-13 16:14 ` Xavier Leroy
2002-10-13 17:06 ` Michel Quercia
2002-10-15 19:15 ` Pierre Weis
2002-10-15 19:25 ` Xavier Leroy
2002-10-16 8:24 ` Pierre Weis
2002-10-13 10:19 ` Pierre Weis
2002-10-11 8:02 ` Sven LUTHER
2002-10-11 6:42 ` Florian Hars
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