Re: generate with state

[Freddy via Digitalmars-d-learn]

On Tuesday, 3 November 2015 at 00:08:54 UTC, Ali Çehreli wrote:
generate() already allows "callables", which can be a delegate:
import std.stdio;
import std.range;

struct S {
    int i;

    int fun() {
        return i++;
    }
}

void main() {
    auto s = S(42);
    writefln("%(%s %)", generate(&s.fun).take(5));
}

Prints

42 43 44 45 46

Will that allocate gc memory? Is there any why I pass state as a 
tuple and have my generator modify state as It's called?