d optimization: delegates vs. mixin

[bearophile]

zoli:

> Thank you. Could you provide a sample or a link ?

Silly D2 code: 

import std.stdio: writeln;

void table(alias Mapper, T)(T[] arr) {
    foreach (el; arr)
        writeln(Mapper(el));
}

void main() {
    table!((x){ return x * x;})([2, 3, 4]);
}

I don't like that code a lot, I'd like the D compiler to be smarter, so the programmer can avoid such silly tricks, and the programmer can program in a more functional style (where you use *functions*).


> Sorry, i know it's a d.learn topic..., 

Yep. Better to ask such things there.


> Offtopic: Is it possible to alter the web interface of the news to change newsgroups during composition ?<

I don't know. Probably not.

Bye,
bearophile