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Date: Wed, 10 Aug 2011 20:34:46 +0200
From: Luka Marčetić <>
Subject: Re: New daily reports - nothing

On 08/10/2011 08:21 PM, Rich Felker wrote:
> On Wed, Aug 10, 2011 at 08:23:37PM +0200, Luka Marčetić wrote:
>> On 08/10/2011 07:33 PM, Rich Felker wrote:
>>> What about SIZE_MAX>>(4*sizeof(size_t))?
>> Never heard of it. What about PTRDIFF_MAX though?
> My point was that SIZE_MAX>>(4*sizeof(size_t)) is an easy way to get
> the square root of SIZE_MAX without long double arithmetic.

Doesn't seem that easy to me.

> is rather irrelevant to testing calloc overflows, where the whole
> point is that A*B overflows SIZE_MAX and results in a small integer
> value where the allocation will certainly succeed.

The task says I should test for PTRDIFF_T. So i tried to make a general 

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