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Re: [PATCH] tail: avoid theoretically undefined behavior
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From: |
Pádraig Brady |
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Subject: |
Re: [PATCH] tail: avoid theoretically undefined behavior |
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Date: |
Wed, 28 Dec 2011 18:27:19 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0 |
On 12/28/2011 05:56 PM, Jim Meyering wrote:
> Can anyone name a real system on which forming a pointer like this,
> "buffer + (size_t)(-1)" actually provokes a trap or some other real problem?
I don't know of particular hardware where this would trap
(alpha can be configured to trap on integer overflow I think).
Your change is worth it for clarity at least.
cheers,
Pádraig.