[Bf-committers] Using C++11 features in Blender source code?

[Bastien Montagne]

iirc, we also need gcc4.2 support (for OSX) ? Guess this one isn’t much 
C++11-aware either… :/

On 27/03/2013 22:16, Manuel Bellersen wrote:
> Hey Dalai,
>
> It's not directly a project list. More a list of things I miss inside the
> game engine.
>
> Downsides of C++11…
> Probably the worst downside is compiler support for it.
> With GCC 4.7 / 4.8 and Clang 3.3 you probably won't have a problem. But MS
> Visual Studio is again far behind :-(.
> Here is a little comparison:
> http://cpprocks.com/a-comparison-of-c11-language-support-in-vs2012-g-4-7-and-clang-3-1/
> http://cpprocks.com/c11-compiler-support-shootout-visual-studio-gcc-clang-intel/
>
> C++11 is fully backwards compatible.
> Just your code might not be as clear as it should be ;-)
> http://stackoverflow.com/questions/4326045/is-new-c-backward-compatible
>
> In my Blender branch I used C++11 features and had no real problems so far.
> In the beginning I had to fix some lines the compiler otherwise would have
> seen as string literal operators:
> http://blenderartists.org/forum/showthread.php?283156-Fix-Compiling-BGE-with-C-11-option-gives-errors
>
>
> You are right. Most C code in the game engine is glue to Blender.
> But sometimes I find things like assert.h, float.h, math.h, stddef.h,
> stdlib.h, stdio.h, malloc, free…
> Trying to figure out where the game engine starts drove me through a lot of
> C - that scared me - and lead to the impression, that there is more in the
> GE. But it looks quite clear. (I thought that Blender would be total C++ …).
>
>
> Hi Mitchell,
>
> MSVC 2008 sounds really bad.
> I guess that means no C++11. Too bad.
> In the code I already modified I used things like: auto,shared_ptr, for,
> move, array, nullptr, constexpr - just to name some.
>
>
> Thanks for your answers!
>
> Cheers!
> Manuel Bellersen
>
>
> 2013/3/27 Dalai Felinto<dfelinto at gmail.com>
>
>> Hi Manuel,
>> I need to re-visit your post to read it more through, but interesting
>> initiative. For some of your projects you may want to drop on irc
>> #bgecoders (or even #blendercoders) channel to bounce ideas before getting
>> down to code. Mainly to smooth out future merges.
>>
>> Now to your topic:
>> Could you elaborate on the downsides of using C++11? (backward
>> incompatibility? Lack of compilers? )
>> And the problems of mixing it up with the existent C++ code.
>>
>> Also BGE shouldn't have C code. As far as I can think of, the only part in
>> C are the dependencies coming from Blender or code for the embedded BGE.
>>
>> Cheers,
>> Dalai
>> On Mar 27, 2013 7:52 AM, "Manuel Bellersen"<bellersenm at googlemail.com>
>> wrote:
>>
>>> Hey there!
>>>
>>> I just got in contact with coding Blender, especially the internal game
>>> engine.
>>> (Here is my personal branch https://bitbucket.org/Urfoex/blender/
>>> and a little write-up:
>>>
>> http://urfoex.blogspot.com/2013/03/bge-qt5-coding-blender-game-engine.html
>> )
>>> I like to code using the new features of C++11.
>>> But currently Blender isn't using C++11 anywhere.
>>> (I think it is kind of funny because it uses Python 3.3 that came out
>>> 29.09.2012
>>> but doesn't use C++11 which showed up already a year earlier on
>>> 12.08.2011.)
>>>
>>> So the question is:
>>> Can I contribute code written using C++11 features?
>>> Or am I forced to do the C&  C++ mix I found (and fear)?
>>>
>>>
>>> Best regards,
>>> Manuel Bellersen
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