Code doesn't work - why?

[Robin via Digitalmars-d-learn]

This is actually a good question as this code isn't really 
complex or doesn't require the best possible performance.
But in case I will ever need optimum performance I should have 
learned how to handle tasks with value types which is the main 
reason why I chose them instead of reference types - for learning 
purposes.

- can't hurt! ;)

Regards,
Rob