Adding delegate in C#
c#, delegates, f#
Solution
Here is one way to do it in F#. You need downcasting due to the use of Delegate.Combine:
let square x = x * x
let cube x = x * x * x
type Transformer = delegate of int -> int
let inline (++) (a: 'T) (b: 'T) =
System.Delegate.Combine(a, b) :?> 'T
let d = Transformer(square)
let e = d ++ Transformer(cube)
Problem
How does one add a new function to a delegate without using the += notation ? I wonder how to do his from another CLR langage, namely F#. (I know there are much nicer way to deal with events in F#, but I am being curious..) ``` static int Square (int x) { return x * x; } static int Cube(int x) { return x * x * x; } delegate int Transformer (int x); Transformer d = Square ; d += Cube; ``` Edit As pointed out by Daniel in the comments, the fact that one has no direct way of doing this probably is a design decision by dotnet team to not mutate the queue too much.