delegate constaints : Generic delegate « delegate « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. delegate
3. Generic delegate

using System;

public delegate R Operation<T1, T2, R>( T1 val1, T2 val2 )
    where T1: struct
    where T2: struct
    where R:  struct;

public class MainClass
{
    public static double Add( int val1, float val2 ) {
        return val1 + val2;
    }

    static void Main() {
        Operation<int, float, double> op = new Operation<int, float, double>( Add );

        Console.WriteLine( "{0} + {1} = {2}", 1, 3.2, op(1, 3.2f) );
    }
}

1 + 3.2 = 4.20000004768372