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Date:      Fri, 14 Jan 2011 07:14:49 -0800
From:      mdf@FreeBSD.org
To:        Bruce Evans <brde@optusnet.com.au>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r217369 - in head/sys: cam/scsi sys
Message-ID:  <AANLkTikVwuSO3h8tKeYXCvC6zqYVHVxdY5Abrzo-Ks2R@mail.gmail.com>
In-Reply-To: <20110114174719.D28159@besplex.bde.org>
References:  <201101131820.p0DIKXip059402@svn.freebsd.org> <AANLkTinh619WaGgq=5fFxTvEX0JPir34k8xb%2Bs6oSH8Y@mail.gmail.com> <20110114174719.D28159@besplex.bde.org>

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On Thu, Jan 13, 2011 at 10:50 PM, Bruce Evans <brde@optusnet.com.au> wrote:
> On Thu, 13 Jan 2011 mdf@freebsd.org wrote:
>
>> There appear to be 330 uses of SYSCTL and QUAD on the same line in
>> CURRENT. =A0This seems reasonable to change them to S64, U64 and X64 so
>> they correctly reflect the size they operate upon.
>>
>> What do y'all think?
>
> Now I suggest delaying this until they can be renamed to a type- generic
> SYSCTL_INT() (would probably need to be spelled differently, SYSCTL_I()
> say, even if SYSCTL_INT() was changed at the same time).

I'm torn on this one.  The compiler knows the type (unless, for
SYSCTL_INT, NULL/0 is used, but that is also a compile-time check),
but to interpret it requires the use of __builtin_foo which is a gcc
extension and not part of standard C.

Philosophically, while I like this kind of letting the compiler do the
work, if you want C++ you know where to find it.

Thanks,
matthew



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