On 5/11/22 06:57, Marvin Hannott wrote:
> I understand that D's classes solve some particular problems. However,
> they also cause problems because they cannot be copied when scoped. So
> how do I get virtual methods on a copyable stack object?
Problems classes solve don't usually need copying nor need to be on the
stack. Is that really necessary?
If so, I can think of two solutions:
a) Use a struct but provide "virtual" functions manually (with function
pointers like one would do in C, all of which potentially collected in a
per-type function table (a.k.a. vtbl :) )).
b) Use classes but provide a virtual function that you call to copy.
Ali
