On 8/1/11 8:29 PM, Andrei Alexandrescu wrote:
On 8/1/11 6:30 PM, Adam Ruppe wrote:
Peter Alexander wrote:
1. The fact that you can't copy const struct objects containing
reference types.
I recently hit a similar problem. web.d uses a ParameterTypeTuple
to fill in arguments to the functions it calls in a generic way.
With "in" arguments, assigning to the tuple isn't allowed! It says
"can't modify const".
I decided to just not use const in there, and cast it away in the
wrapper function. I'm not happy with that, but I don't know what else
to do. (I generally like D's const and immutable, but blarg there are
some rough edges and I don't even know how to fix the design.)
I know how to fix the design (in fact the implementation, the design is
sound). It's just ever so difficult to find the time to prioritize for it.
Overall I feel Peter's post on stackexchange did more bad than good (of
course that doesn't mean he had the right;
s/had/didn't have/
Andrei
