From mboxrd@z Thu Jan  1 00:00:00 1970
From: jammy.linux@gmail.com (Zhang Meng)
Date: Fri, 25 Feb 2011 18:50:35 +0800
Subject: BUILD_BUG_ON_ZERO
Message-ID: <AANLkTim3kugPOv9F4z5=G3x2P05HChgT2tK_KFsumPPf@mail.gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

Hi ~List,

Could anybody explain the macro below? what does it mean?

Thanks in advance.

#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))


-- 
Yours sincerely
ZhangMeng