Rethrow an exception like in C++?

[Chris Cain]

On Friday, 8 March 2013 at 09:01:14 UTC, Jonathan M Davis wrote:
> If that's the case, I really don't see what the problem is. 
> It's just a few
> characters difference.

To be honest, the way I look at it, D does this _better_. 
"throw;" looks like magic and it's accessing global (potentially 
mutable) state to do something. I haven't done much research into 
C++'s handling of exceptions (and, in particular, this feature), 
but I'd be _very_ weary of doing that without knowing whether 
this global state is thread local or shared. If it's shared, you 
would have some nice heisenbugs pop up if this was used in 
multithreaded code.

Using "catch(Exception E) { throw Trace(E); }" is more explicit 
to what Trace needs to work and, IMO, a better design.