On Sunday, 6 August 2017 at 12:50:22 UTC, Adam D. Ruppe wrote:
On Saturday, 5 August 2017 at 19:58:08 UTC, Temtaime wrote:
                (k){ dgs[k] = {writefln("%s", k); }; }(i);

Yeah, that's how I'd do it - make a function taking arguments by value that return the delegate you actually want to store. (Also use this pattern in Javascript btw for its `var`, though JS now has `let` which works without this trick... and D is supposed to work like JS `let` it is just buggy).

You could also define a struct with members for the values you want, populate it, and pass one of its methods as your delegate. It is syntactically the heaviest but does give the most precise control (and you can pass the struct itself by value to avoid the memory allocation entirely if you want).

But for the loop, the pattern Temtaime wrote is how I'd prolly do it.

I like the (kinda cryptic IMO) look of this '(k){...}(i)' construction. But for my actual code I went with struct+opCall without any delegate at all.

Anyway, thanks for all your suggestions.

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