Old problem with performance

[Christopher Wright]

Weed wrote:
> And if I need some different such combinations? For each it is necessary
> to write such 8-10 lines? This is terrible!

You need to add those lines for every method you need virtual dispatch 
with for your value type. It's an overhead of three lines per method, 
two for the interface (declaration and member), and one extra line where 
you create the struct. If you're reasonable, your struct constructor 
will create a default instance.

So, it's not that great an overhead.