Stewart Lynch in his 10x VODs mentions his custom Function abstraction in C++. It's super clean and explicit, avoiding `auto` requirement of C++ lambdas. It's use looks something akin to:

    // imagine my_function takes 3 ints, the first 2 args are captured and curried.
    Function<void(int)> my_closure(&my_function, 1, 2);
    my_closure(3);

I've never implemented it myself, as I don't use C++ features all too much, but as a pet project I'd like to someday. I wonder how something like that compares!