implicit.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace RunRun
{
    public class Jone
    {
        public static void Run()
        {
            var a = new Complex(2.0, 5.0);
            var b = new Complex(3.0, 1.0);

            var r_a = a + b;
            var r_b = a - b;

            var r_c = a + 2.5;
            //var r_d = a + new Tuple<Double, Double>(2.5, 3.0);
            var r_d = a + Tuple.Create(2.5, 3.0);

        }

        private class Complex
        {
            private Double real { get; set; }
            private Double imag { get; set; }

            public Complex(Double r, Double i)
            {
                this.real = r;
                this.imag = i;
            }

            public static Complex operator +(Complex val1,Complex val2)
            {
                return new Complex(val1.real + val2.real, val1.imag + val2.imag);
            }

            public static Complex operator -(Complex val1, Complex val2)
            {
                return new Complex(val1.real - val2.real, val1.imag - val2.imag);
            }
            
            public override string ToString()
            {
                return this.real + "+" + this.imag + "i";
            }

            public static implicit operator Complex(Double val)
            {
                return new Complex(val, 0);
            }

            public static implicit operator Complex(Tuple<Double,Double> val)
            {
                return new Complex(val.Item1,val.Item2);
            }
        }
    }
}