Slow performance compared to C++, ideas?

[Joseph Rushton Wakeling]

On 06/08/2013 06:39 PM, Walter Bright wrote:
> So they don't need to be classes at all. It's not about embodying functionality
> vs data. It's about having a value type vs a polymorphic ref type.

I've had quite good experiences using template mixins to generate struct
polymorphism (in practice it's more of a policy class way of operating).  The
main problem is that this tends to slow down compilation quite a bit, though
less so with DMD than with the other 2 compilers.