The future of foreach| arbitrary number of arrays version

[bearophile]

bearophile:

> but it has a bug still, the index i gives problems still (in your original 2-element solution too, I think). If you want you can fix the problem.

Fixed, instead of size_t id, ref size_t:

    mixin("
    int opApply(int delegate(ref size_t, " ~ SeriesGen1S!("ref T%s", ", ", TyArrays.length-1) ~ ") dg) {
        foreach (size_t id, entry; a0[0 .. len])" ~
            "if (auto res = dg(id, entry, "~ SeriesGen1S!("a%s[id]", ", ", TyArrays.length-1, 1) ~ "))
                return res;
        return 0;
    }
    ");

Bye,
bearophile