On Thu, 03 May 2012 16:57:01 -0400, deadalnix <deadal...@gmail.com> wrote:
Le 03/05/2012 22:22, Gor Gyolchanyan a écrit :
That workaround is pretty obvious, but I can't afford to make an extra
call every time. This event system is supposed to be ultra-fast. Isn't
there a way to get to the vtable etry itself?
1/ Such a trivial thing is surely inlined by any compiler with
optimizations on.
I wouldn't count on it. You can't inline a lambda that is used somewhere
it's not declared.
2/ You can afford a virtual dispatch, but can't afford a function call ?
In my experience, virtual calls are nearly as cheap as normal calls. But
doubling the function call setup/teardown/call is not insignificant. It
all depends on how much time is spent in the function being called.
I do think you are in case of premature optimizations here.
This is very likely, it all depends on what you are doing *inside* the
call.
-Steve
