Re: Unofficial Red Hat Port

On Friday 13 Sep 2013 09:01:27 David Brown wrote:
> On 12/09/13 21:27, DJ Delorie wrote:>
> >> Is c++ an officially supported aspect of the port?
> >
> > I'm going to conditionally say "yes" because, while I build and test
> > C++, I know there are some language features of C I took advantage of
> > to get far (20-bit) addressing, that C++ simply doesn't support.  So
> > I'm not sure how well C++ will work "in real programs" in all cases.
> >
> > Also, there's some overhead in setting up the C++ objects that might
> > be an issue on the smallest MSP430 devices.  You can work around it on
> > a per-project basis, but it's something to keep in mind when choosing
> > a language.
> >
> 
> For small targets like this, it is common to compile C++ with "-fno-rtti
> -fno-exceptions", as these features can have a lot of overhead and need
> library support, and are seldom useful on such targets.  For the AVR
> port of gcc, C++ works with these flags.  So if you are able to say "C++
> works with exceptions and rtti disabled" then that would be fantastic -
> the final parts may be nice to get completed, but I don't think they are
> a priority to users.

especially static polymorphism or meta-programming in modern C++ is such a great achievement and it is just sooooo useful for microcontroller development .... I'm raising two hands for proper C++11 support!

Michi

> 
> (That's my 2 øre, anyway.)
> 
> David
> 
> 
> > I also expect there will be plenty of "in real programs" features you
> > folks will be asking for that I'll need to add - FSF ports are not
> > fixed in stone :-)
> >
> > If you ask me for FORTAN support, though, I'm more likely to say "no" :-)
> > (or at least "you're on your own")
> >
> 
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