linux-kernel - Re: [PATCH 1/2] lib: Add generic binary search function to the kernel.

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Date:	Sun, 27 Sep 2009 13:05:01 -0400 (EDT)
From:	Tim Abbott <tabbott@...lice.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
cc:	Alan Jenkins <alan-jenkins@...fmail.co.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-kbuild@...r.kernel.org, linux-modules@...r.kernel.org
Subject: Re: [PATCH 1/2] lib: Add generic binary search function to the
 kernel.


On Thu, 24 Sep 2009, Rusty Russell wrote:

> On Thu, 24 Sep 2009 02:58:45 am Tim Abbott wrote:
> > +void *bsearch(const void *key, const void *base, size_t num, size_t size,
> > +	      int (*cmp)(const void *key, const void *elt))
> > +{
> > +	int start = 0, end = num - 1, mid, result;
> > +	if (num == 0)
> > +		return NULL;
> > +
> > +	while (start <= end) {
> 
> The if (num == 0) line is superfluous.

You are quite right.

	-Tim Abbott
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