[Ffmpeg-devel] [RFC] another attempt at memalign realloc

Måns Rullgård mru
Thu Dec 7 18:11:41 CET 2006


Steve Lhomme said:
> Reimar D?ffinger wrote:
>> Hello,
>> On Wed, Dec 06, 2006 at 09:38:51PM +0100, Michael Niedermayer wrote:
>>> On Wed, Dec 06, 2006 at 05:34:12PM +0100, Reimar D?ffinger wrote:
>> [...]
>>>> -    return realloc(ptr - diff, size + diff) + diff;
>>>> +    ptr2 = realloc(ptr - diff, size + 16) + diff;
>>>> +    if(!((int)ptr2&15))
>>> hmm didnt this cast cause same silly warning with gcc on x86-64 or
>>> something, anyway long and int casts are mixed not a real issue though
>>
>> The result of reusing code from other tries ;-)
>>
>>>> +        return ptr2;
>>>> +    ptr = ptr2 - diff;
>>> void * arithmetic
>>
>> Fixed, but most of the code actually is copy&paste from av_malloc, which
>> seems to use void * arithmetic, too...
>
> You can always replace/cast the void* to char*.

That's actually completely correct.  Congratulations, Steve.  Does this work
in MSVC too?

-- 
M?ns Rullg?rd
mru at inprovide.com




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