Re: Is using function() in templates possible at all?

[Nicholas Wilson via Digitalmars-d-learn]

On Wednesday, 11 April 2018 at 22:13:33 UTC, Sjoerd Nijboer wrote:
On Wednesday, 11 April 2018 at 21:29:27 UTC, Alex wrote:
I would say, alias template parameter is your friend.
https://dlang.org/spec/template.html#TemplateAliasParameter
class SortedList(T, alias comparer)

It works, thank you!
But just to be shure, there's no way to have this more strongly 
typed in D so I can enforce that `comparer`is a funciton or 
delegate with a specific definition?


There is, with template constraints:

class SortedList(T, alias comparer) if(is(typeof(comparer(T.init) 
: int))
{
    //...
}