Grzeogorz Łuszczek:
I will be glad if someone could help me with my problem.
Such questions are better asked in D.learn newsgroup.
Every time you instantiate the sort function with different
template arguments, you generate a different type. So you could
use a variant, or probably better to find a different solution.
You could store just the arguments of the sort template, like the
string "a.ipAddress < b.ipAddress" or the equivalent lambda, and
later use it as arguments to instantiate the sort when you need
it.
Bye,
bearophile
