I recently listend to Deep Fried Bytes on functional programming in C#.

In the show notes, there is a code sample of doing curring in C#, I worked a bit further on it.

This is what came out of it:

First I did a delegate, that would take a delegate:

Func<Func<int, int, int>, int, Func<int, int>> MyCurry =                

(dele, x) => z => dele(z, x);

Then I made three functions, that would adhere to Func<int, int, int> :

Func<int, int, int> add = (x, y) => x + y;

Func<int, int, int> sub = (x, y) => x - y;

Func<int, int, int> mul = (x, y) => x * y;

Then I made three curried functions, that used the first delegate:

var add9 = MyCurry(add, 9);

var sub9 = MyCurry(sub, 9);

var mulBy2 = MyCurry(mul, 2);

And lastly I used the curried functions:

int result = add9(5);

result = sub9(10);

result = mulBy2(5);

And it actually works!

This way it is really easy to curry functions together…