12-Mar-2014 23:51, Sean Kelly пишет:
On Wednesday, 12 March 2014 at 17:08:59 UTC, Andrei Alexandrescu
wrote:
On 3/12/14, 10:05 AM, monarch_dodra wrote:
On Wednesday, 12 March 2014 at 16:46:26 UTC, Andrei Alexandrescu wrote:
On 3/12/14, 4:40 AM, Manu wrote:
Thank you.
There you go, it's not even hypothetical.
I think the example given works against your argument.
Andrei
How so? The example was his argument verbatim.
His argument assumed at core that the library designer knows better
than the library user what the customization points are, and that most
functions are virtual by mistake.
And this argument is absolutely correct, in my experience. By
making virtuality an explicit choice, the library designer is
specifying that a given function is a part of the published
interface for a class and overriding it has some explicit purpose
that will be maintained over time.
Seconded.
--
Dmitry Olshansky
