This is a tiny header file that allows you to use all objects that would otherwise be usable with std::function in a curried manner, like in functional languages.

Dependencies

A sane compiler (with C++14 support). Tested on MinGW-w64 with g++ 4.9.1. Should work fine with clang, probably doesn't with MSVC.

Example

// To build: g++ -std=c++14 example.cpp -o example

#include <iostream>
#include "curry.hpp"

int add_then_sub(int x, int y, int z) {
    return x + y - z;
}

// auto return type to save lots of typing
// this is also an example of eta reduction
auto step_one() {
    // first template parameter is the return type, the others are arguments' types
    return curry(add_then_sub)(5);
}

int main(int argc, char* argv[]) {
    std::cout << uncurry(step_one())(4, 3) << "\n";

    return 0;
}

Output:

6

But why?

I was bored.

But we already have std::bind!

I was bored.

License

This is meant mostly for educational/"because-I-can" purposes, rather than being usable. The code is so short it's not unrealistic to write something similar by accident. However, if you for some reason think using this in actual, real-world code is a good idea, then you can do so under the terms of the Simplified BSD license, as provided in the LICENSE file.