From: David Kastrup <dak@gnu.org>
Cc: Mario Lang <mlang@delysid.org>, emacs-devel@gnu.org
Subject: Re: IEEE single precision float values
Date: Sat, 12 Feb 2005 20:53:24 +0100 [thread overview]
Message-ID: <x5wttdeerv.fsf@lola.goethe.zz> (raw)
In-Reply-To: <E1D02lF-0002Xn-Mb@fencepost.gnu.org> (Richard Stallman's message of "Sat, 12 Feb 2005 14:16:57 -0500")
Richard Stallman <rms@gnu.org> writes:
> I came up with the following two functions below. I think they
> are generically useable for network IO and possibly reading
> certain data records from files directly. I am fairly sure
> my version is very bad regarding performance though.
>
> Whether that is a problem depends on what the application is.
> Anyway, if this is generally useful we could install it.
I think this is something that should quite likely rather be done in C
on platforms with IEEE floating point arithmetic. It seems rather
pointless (not to mention bug-prone) to go through all that Elisp when
just typecasting the bit patterns should be enough.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
prev parent reply other threads:[~2005-02-12 19:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-11 9:34 IEEE single precision float values Mario Lang
2005-02-12 19:16 ` Richard Stallman
2005-02-12 19:53 ` David Kastrup [this message]
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