On Wed, 7 Sep 2005 [EMAIL PROTECTED] wrote:
> On Wed, 07 Sep 2005 11:21:42 +0200, Esben Nielsen said: > > > I use a RTOS written in plain C but where you can easily use C++ in kernel > > space (there is no user-space :-). We use gcc by the way. > > This isn't RTOS, in case you haven't noticed. ;) Well, with Ingo's preempt-RT patch it is becomming a RT-OS, but that is not the issue here. > > > It has been done for Linux as well > > (http://netlab.ru.is/pronto/pronto_code.shtml). Why can't this kind of > > stuff be merged into the kernel? Why is there no efford to do so?? > > Quoting http://netlab.ru.is/exception/LinuxCXX.shtml: > > "The code is installed by applying a patch to the Linux kernel and enables the > full use of C++ using the GNU g++ compiler. Programmers that have used C++ in ^^^^ > Linux kernel modules have primarily been using classes and virtual functions, > but not global constructors. dynamic type checking and exceptions. Using even > this small part of C++ requires each programmer to write some supporting > routines. Using the rest of C++ includes porting the C++ ABI that accompanies > GNU g++ to the Linux kernel, and to enable global constructors and > destructors." > > So let's see - no constructors, no type checking, no exceptions, and using > virtual functions requires the programmer to write the glue code that > programmers want to use C++ to *avoid* writing. Sounds like "We stripped out > all the reasons programmers want to use C++ just so we can say we use C++ in > the kernel". > > So, other than wank value, what *actual* advantages are there to using this > limited subset of C++ in the kernel? > If you cared to read the whole page you will notice that they talk about the _past_. They have as I understand the page, they claim to have _fixed_ the problems. Esben - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
