[Ffmpeg-devel] Matroska Patch

Steve Lhomme steve.lhomme
Thu Mar 23 10:29:09 CET 2006

Diego Biurrun wrote:
> On Wed, Mar 22, 2006 at 12:26:14AM -0500, Rich Felker wrote:
>> On Tue, Mar 21, 2006 at 10:58:42PM +0100, Diego Biurrun wrote:
>>> On Tue, Mar 21, 2006 at 04:53:44PM -0500, Rich Felker wrote:
>>>> On Tue, Mar 21, 2006 at 08:21:33PM +0000, M?ns Rullg?rd wrote:
>>>>>> For some reasons MSVC doesn't like a variable called time. It must
>>>>>> be defined as a macro somewhere. And changing a name can't be such a
>>>>>> bad change.
>>>>> Then figure out why.  We don't support msvc, and will not accept
>>>>> arbitrary patches to make it work without an explanation.
>>>> ANSI/ISO C does not allow you to use "time" as a symbol name with
>>>> external linkage, but it's totally valid to use it as a local variable
>>>> or with static linkage. If MSVC chokes on this, tough. MSVC users can
>>>> add -Dtime=MSVC_sucks_time to their compiler options...
>>> Or we could just rename the variable and make everyone's life a bit
>>> easier.  IMO this is one of the cases where we should budge.
>> I disagree strongly. Renaming variables because of a broken compiler
>> simply hides bugs in the compiler. If people keep seeing that they
>> have to make workarounds when using broken compilers maybe they'll
>> complain to the compiler vendor or switch to a standards-compliant
>> compiler. If we just hide the bug it encourages people to use this
>> crap.
> This case is different IMO.  The use of 'time' as variable name is
> problematic.  You have to have a copy of the C standard lying around to
> check which uses are allowed and which aren't to avoid shooting yourself
> in the foot.  In this situation avoiding time as variable name outright
> looks like the clean solution to me.
> @Steve: Variable renaming should go in a separate patch in any case.

Here you go.

BTW, I left block_time as unsigned, but I don't think doing 
(-block_time) on an unsigned value is clean. I think that was the 
general idea to move everything to unsigned: avoiding comparing apple 
and peas.

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