Re: L4Ka::Pistachio code style

> >it is C++ written in C style rather than the C++ design advocated by
> >Stroustrup and other respected members of the C++ community . why
> >L4Ka::Pistachio adopted this style & why it does not use "Standard
> >Library, Class mechanism & Templates" at most places instead of that
> >low-level C style. [1]
>
> Because we don't want the overhead of virtual functions, and want to have
> a precise understanding of the data structure layout and the code generated.

Hmmm. id di not know that, now i know why C is important

> >i dont know C but i have done some C++ where i did some optimization
> >of 2 programmes, one using "string" class & other using "malloc/free"
> >& "string" class was as fast as "malloc/free" & i know Templates are
> >"compile-time" mechanism, hence not they do not produce any run-time
> >overhead.
>
> They can create large code which significantly impacts on the cache.

ok

> >[1] i am not trying to start a flame-war. i only want to know the
> >issues, whether technical or others, behind this decision. i am pretty
> >much interested in microkernel based OSs & have read several papers &
> >articles on HURD, L4 & Coyotos, Haskell, BitC, MINIX & Common Lisp. i
> >was intersted in doing some contributions to a copyleft OS.
>
> L4 is not distributed under a copyleft license.

:-(

> Benno

thanks Benno


-- arnuld
http://arnuld.blogspot.com/