From: Boris Yakobowski <ml@yakobowski.org>
To: "Corey O'Connor" <coreyoconnor@gmail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] 32-bit unsigned integers
Date: Mon, 26 Jul 2004 20:09:51 +0200 [thread overview]
Message-ID: <20040726180951.GA16244@elrond> (raw)
In-Reply-To: <c1291235040726104939864162@mail.gmail.com>
On Mon, Jul 26, 2004 at 10:49:25AM -0700, Corey O'Connor wrote:
> On Mon, 26 Jul 2004 19:15:18 +0200, Sébastien Hinderer
> <sebastien.hinderer@ens-lyon.org> wrote:
> > Now I'd like to define the same thing in Caml:
> >
> > # let uint32_max = Int32.of_string "4294967295";;
> > Exception: Failure "int_of_string".
>
> Ah! I asked the same question just a bit ago!
>
> A "language extension" to Ocaml (Make sure you have 3.07.11 or
> greater) is to directly assign 32 bit integers without using
> Int32.of_string. Just add an "l" to the end of the constant. (Lower
> case "L" if your font is strange and it looks like a 1 | I) It's like
> so:
>
> # let blah = 0x8FFFFFFFl;;
> val blah : int32 = -1879048193l
> #
Unfortunately, this is still not enough in Ocaml 3.08 for the unsigned
integers needed by Sebastien:
Objective Caml version 3.08
# 4294967295l;;
Integer literal exceeds the range of representable integers of type int32
#
--
Boris
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next prev parent reply other threads:[~2004-07-26 18:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-26 17:15 Sébastien Hinderer
2004-07-26 17:49 ` Corey O'Connor
2004-07-26 18:09 ` Boris Yakobowski [this message]
2004-07-26 18:32 ` Sébastien Hinderer
-- strict thread matches above, loose matches on Subject: below --
2004-07-26 15:38 Sébastien Hinderer
2004-07-26 16:46 ` Xavier Leroy
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