[Ffmpeg-devel] [PATCH] const AVOption

Steve Lhomme slhomme
Wed Nov 1 21:34:58 CET 2006


Guillaume POIRIER wrote:
> Hi,
> 
> On 10/31/06, Michael Niedermayer <michaelni at gmx.at> wrote:
>> On Mon, Oct 30, 2006 at 10:44:50PM +0100, Guillaume POIRIER wrote:
>> > On 10/23/06, Steve Lhomme <slhomme at divxcorp.com> wrote:
>> > >AVOption data usually don't need to be modified. This patch ensures 
>> that.
>> >
>> > This patch doesn't seem to break anything here. Should I apply it 
>> Michael?
>>
>> hmm, but what good does it do? are we applying patches just because they
>> dont break anything?
> 
> Mmm... no :-)
> 
> 
>> if adding these consts protects against some bugs then ill review it and
>> wont object to it being applied but steve didnt claim that, so iam not
>> sure ...
> 
> Well in theory compilers are able to do some smarter things when some
> values are made const...
> In practice, I don't know what GCC or MSVC is able to do though.
> 
> Steve, did you find any practical advantage of your patch?

No. Maybe it removed some warnings with MSVC.

But in the future if someone does something not legit with this stuff 
that is supposed to be const, it will be seen very quickly...

Steve




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