From: skaller <skaller@users.sourceforge.net>
To: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] nat too big?
Date: Sat, 23 Jun 2007 08:58:53 +1000 [thread overview]
Message-ID: <1182553133.26725.37.camel@rosella.wigram> (raw)
In-Reply-To: <1182552443.26725.32.camel@rosella.wigram>
On Sat, 2007-06-23 at 08:47 +1000, skaller wrote:
> On Sat, 2007-06-23 at 08:42 +1000, skaller wrote:
> > On Sat, 2007-06-23 at 08:37 +1000, skaller wrote:
> > > I'm getting an error in Win64 native code compiler generated code:
> > >
> > > output_value: nat too big
> > >
> > > What does that mean? Looks like a Marshalling bug?
> >
> > Woops... that's an error in Ocs_scheme .. sorry for noise..
>
> Double woops .. not it isn't ;(
Hmm .. found it: in ocaml/otherlibs/num/nat_stubs.c,
this code is wrong:
#ifdef ARCH_SIXTYFOUR
len = len * 2; /* two 32-bit words per 64-bit digit */
if (len >= (1L << 32))
failwith("output_value: nat too big");
#endif
because 1L << 32 will overflow on _WIN64 because long
integers are still only 32 bits.
[in bugtracker]
--
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net
prev parent reply other threads:[~2007-06-22 22:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-22 22:37 skaller
2007-06-22 22:42 ` [Caml-list] " skaller
2007-06-22 22:47 ` skaller
2007-06-22 22:58 ` skaller [this message]
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