From: Thiago Farina <tfransosi@gmail.com>
To: "André Goddard Rosa" <andre.goddard@gmail.com>
Cc: tabbott@ksplice.com, alan-jenkins@tuffmail.co.uk,
rusty@rustcorp.com.au, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/2] bsearch: prevent overflow when computing middle comparison element
Date: Wed, 11 Nov 2009 13:09:57 -0200 [thread overview]
Message-ID: <a4c8a6d00911110709j65b54875sb9e56edf0a32c28d@mail.gmail.com> (raw)
In-Reply-To: <2bd27b061789ed14dd80816fd987273ae33ffbd1.1257864802.git.andre.goddard@gmail.com>
On Tue, Nov 10, 2009 at 1:00 PM, André Goddard Rosa
<andre.goddard@gmail.com> 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, mid, result;
> + size_t start = 0, end = num;
> + int result;
>
> while (start < end) {
> - mid = (start + end) / 2;
> + size_t mid = start + (end - start) / 2;
I think it is more readable if you could keep the mid variable outside
of the while loop.
next prev parent reply other threads:[~2009-11-11 15:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1257864802.git.andre.goddard@gmail.com>
2009-11-10 15:00 ` [PATCH v4 1/2] bsearch: avoid unneeded decrement arithmetic André Goddard Rosa
2009-11-10 15:00 ` [PATCH v4 2/2] bsearch: prevent overflow when computing middle comparison element André Goddard Rosa
2009-11-11 15:09 ` Thiago Farina [this message]
2009-11-11 15:28 ` Thiago Farina
2009-11-12 13:06 ` Rusty Russell
2009-11-12 13:23 ` André Goddard Rosa
2009-11-13 15:03 ` Thiago Farina
2009-11-13 23:42 ` Rusty Russell
[not found] ` <AANLkTinhg-ZgQRQ5KUXR-FeTa9zo+cUF+3vZykzeaHwE@mail.gmail.com>
2010-09-23 1:26 ` Rusty Russell
2010-09-24 5:50 ` matt mooney
2010-10-04 23:32 ` Rusty Russell
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