[Ffmpeg-devel] [PATCH] pointer targets differ in signedness

Luca Barbato lu_zero
Tue Sep 12 10:57:19 CEST 2006


Rich Felker wrote:
> On Sun, Sep 10, 2006 at 08:49:08PM +0100, M?ns Rullg?rd wrote:
>> matthieu castet <castet.matthieu at free.fr> writes:
>>
>>> M?ns Rullg?rd wrote:
>>>> Luca Barbato <lu_zero at gentoo.org> writes:
>>>>
>>>>> M?ns Rullg?rd wrote:
>>>>>
>>>>>> This patch gets rid of many of the "pointer targets differ in
>>>>>> signedness" warnings generated by gcc4.
>>>>>>
>>>>>> Please, can those with knowledge of the files listed below check that
>>>>>> I didn't do something stupid?  Needless to say, regression tests pass
>>>>>> with these changes.
>>>>> since the warn is stupid I expect this.
>>>>>
>>>>> did you check that is is ok on different arches? (the ones with signed
>>>>> or unsigned char as default)
>>>> I don't know of an arch that has unsigned char as default.
>>>>
>>> PPC is one of them : I remember asking me with getopt wasn't returning -1...
>> I don't have a PPC.
> 
> GCC has a compiler flag to override default signedness for char.

that you shouldn't use globally.

I'd suppress this warning since is meaningless btw...





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