On Jan 30, 2020, at 04:54, hanw...@gmail.com wrote:
>
> This may predate you, but the decision to not store references was
> intentional,
> exactly because storing NULL in them is very useful. If you have a
> reference,
> it has to be initialized in the constructor, and this introduces a lot
> of boilerplate
> because you have to pass the non-null reference across constructors in
> the class
> hierarchy.
The discussion has turned from (a) passing a required parameter as a reference,
to (b) using a reference as a member variable. (a) does not imply (b). You
can pass in a T& and store it in a T* to avoid the constraints that (b) would
place on the use of your class (though they apparently were not previously a
problem in this case).
> The current code overwhelmingly disavows references. The 2 remaining
> uses (this being one) stand out like a sore thumb.
We must be miscommunicating, because I see a lot more than 2. For some
examples,
git grep 'vector<[^>]\+> &'
Please clarify.
Thanks,
—
Dan
