From: Neil Jerram <neil@ossau.uklinux.net>
Cc: guile-devel@gnu.org
Subject: Re: uniform vector byte signed or unsigned
Date: Sat, 24 Jul 2004 11:28:23 +0100 [thread overview]
Message-ID: <410239C7.8080701@ossau.uklinux.net> (raw)
In-Reply-To: 87zn5qiaj7.fsf@zip.com.au
Kevin Ryde wrote:
> In scm_cvref it looks like a byvect byte is fetched as a "char", which
> is of course normally signed, but on some systems can be unsigned.
>
> Is a byte meant to be treated as signed? It's probably worth making
> that explicit so scheme level stuff doesn't depend on the vagaries of
> C type conventions.
Good spot. I've hit this on Windows, where it comes out as signed, and
so I have to do a trivial conversion to an unsigned value.
My preference would be for the value to be unsigned in the first place,
though.
Regards,
Neil
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next prev parent reply other threads:[~2004-07-24 10:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-23 23:11 uniform vector byte signed or unsigned Kevin Ryde
2004-07-24 10:28 ` Neil Jerram [this message]
2004-07-27 22:42 ` Kevin Ryde
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