Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: drivers/char/sysrq.c | Date | 30 May 2003 13:24:41 -0700 |
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Followup to: <20030530151317.GA3973@werewolf.able.es> By author: "J.A. Magallon" <jamagallon@able.es> In newsgroup: linux.dev.kernel > > I see a diff: > - & is bitwise and you always perform the op > - && is logical and gcc must shortcut it > > I think people use & 'cause they prefer the extra argument calculation > than the branch for the shortcut (AFAIR...) > > or not ? >
In this case it doesn't matter, since gcc should be able to prove the right-hand-side is side-effect free.
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