From owner-cvs-src-old@FreeBSD.ORG  Sun Mar  1 09:35:52 2009
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 2C57E106564A
	for <cvs-src-old@freebsd.org>; Sun,  1 Mar 2009 09:35:52 +0000 (UTC)
	(envelope-from bz@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 1A6F28FC13
	for <cvs-src-old@freebsd.org>; Sun,  1 Mar 2009 09:35:52 +0000 (UTC)
	(envelope-from bz@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n219ZpBZ063212
	for <cvs-src-old@freebsd.org>; Sun, 1 Mar 2009 09:35:51 GMT
	(envelope-from bz@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n219ZpxC063211
	for cvs-src-old@freebsd.org; Sun, 1 Mar 2009 09:35:51 GMT
	(envelope-from bz@repoman.freebsd.org)
Message-Id: <200903010935.n219ZpxC063211@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	bz@repoman.freebsd.org using -f
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Sun, 1 Mar 2009 09:35:41 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/sys vimage.h
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 01 Mar 2009 09:35:52 -0000

bz          2009-03-01 09:35:41 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              vimage.h 
  Log:
  SVN rev 189221 on 2009-03-01 09:35:41Z by bz
  
  Add the new compile-time assertion macro CTASSERT_EQUAL().
  It takes a positive integer constant (the expected value) and
  another positive integer, usually compile-time evaluated,
  e.g. CTASSERT_EQUAL(FOO_EXPECTED_SIZE, sizeof (struct foo));
  
  While the classic CTASSERT() gives:
   error: size of array '__assert60' is negative
  this gives you:
   In function '__ctassert_equal_at_line_60':
   warning: '__expected_42_but_got[464ul]' is used uninitialized in this function
  and you can directly see the difference in the expected and the
  real value.
  
  CTASSERT_EQUAL() needs special compile time options to trigger
  thus keep it locally to this header. If it proves to be of general
  interest it can be moved to systm.h.
  
  Submitted by:   jmallett
  Reviewed by:    sam, warner, rwatson, jmallett (earlier versions)
  
  Revision  Changes    Path
  1.9       +24 -0     src/sys/sys/vimage.h