On Wednesday, 3 January 2024 at 17:44:00 UTC, H. S. Teoh wrote:
On Wed, Jan 03, 2024 at 04:50:57PM +0000, axricard via
Digitalmars-d-learn wrote:
I have an interface that is implemented by many classes, and I
want to pick one of these implementations at random. There are
two more constraints : first the distribution is not uniform,
all classes can define the chance they have to be picked (this
is reflected by the function 'weight()' below). And all
classes are not always available, this depends on some runtime
information.
I would tag each implementation with a compile-time enum and
use compile-time introspection with CRTP[1] to auto-generate
the code for choosing a class according to the desired
distribution.
[1]
https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
That works very well, thank you !!
