From: Andreas Schwab <schwab@linux-m68k.org>
To: Tom Tromey <tromey@redhat.com>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: Optimizing memory footprint of bidi code
Date: Mon, 07 Jun 2010 17:46:11 +0200 [thread overview]
Message-ID: <m3hbleu9q4.fsf@hase.home> (raw)
In-Reply-To: <m3ljaqoowz.fsf@fleche.redhat.com> (Tom Tromey's message of "Mon, 07 Jun 2010 09:14:36 -0600")
Tom Tromey <tromey@redhat.com> writes:
> In C an enum is always an int.
This is not true. Only the enum constants are of always of type int.
The underlying type of an enum can be any type that is wide enough to
include all defined values.
> In a struct the compiler will not automatically shrink this to a
> bitfield.
The width is the same as outside of structs.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2010-06-07 15:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-07 14:30 Optimizing memory footprint of bidi code Eli Zaretskii
2010-06-07 15:14 ` Tom Tromey
2010-06-07 15:46 ` Andreas Schwab [this message]
2010-06-07 16:01 ` Stefan Monnier
2010-06-07 23:10 ` Eli Zaretskii
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