On Saturday, 7 December 2013 at 00:40:52 UTC, Manu wrote:
Assuming a comparison to C++, you know perfectly well that D
has a severe
disadvantage. Unless people micro-manage final (I've never seen
anyone do
this to date), then classes will have significantly inferior
performance to
C++.
C++ coders don't write virtual on everything. Especially not
trivial
accessors which must be inlined.
I concur with Manu and if D gain more adoption we can only expect
calls that should not be virtual be virtual. Removing unecessary
virtual calls in a C++ codebase gives significant performance
improvements in my experience.
But it's not even so much about virtual calls being slower than
the myth that every function being redefinable in a sub-class _by
default_ is somehow a good thing. I don't think it is at all.
