On 8/23/18 12:27 PM, Shachar Shemesh wrote:
On 23/08/18 17:01, Steven Schveighoffer wrote:
So interestingly, you are accepting the sockaddr by VALUE.
Indeed. The reason is that I cannot accept them by reference, as then
you wouldn't be able to pass lvalues* in. Another controversial decision
by D.
*rvalues you meant.
One that is actively being addressed, at least by the community:
https://github.com/dlang/DIPs/blob/master/DIPs/DIP1016.md
No guarantees it gets through, but this is probably further than anyone
has ever gotten before on this topic (and it's a very old topic).
Had that been C++, I'd definitely get a const ref instead.
If you want to use inheritance this is a given, in D or in C++.
What this simply means is your identification of the problem is simply
wrong -- it's not that you can't make subtypes with structs (you can),
it's that you can't accept rvalues by reference, and accepting by
reference is required for inheritance.
-Steve
