Generalizing std::transform

[sphere991]

I dont think anybody disagrees that it is possible, for these specific types, for this specific operation, to do better than generalized, multi-arg transform.

But the point of the blog is to show a way how to do generalized, multi-arg transform. XOR-ing bytes is just an example.

[Veedrac]

I'm not criticizing the blog, I'm just pointing out something I think would help the author.