Rest of trivial decorations

[Paolo Carlini]

Jan Hubicka wrote:
> Thanks,
> I however noticed one problem here.  stdatomic.h can be included by C
> code too.  Does something like this look sane?  Or do we want to invent
> macro for throw() marker?
> I think stdatomic.h is only case, other c headers contains to
> functions.
>   
I'm pretty sure the same problem occurred in libsupc++, for some
decorations added by Mark. Please look if you can find some
"inspiration" there ;)

Paolo.