using extension methods on int

Question

I\'m reading about extension methods, and monkeying around with them to see how they work, and I tried this:

namespace clunk {
    public static class oog {
             


        

Answer 1

As others have said, there's no such thing as extension operators in C#.

The closest you can get, running the risk of facilitating lots of nasty bugs down the line, would be with implicit conversion operators on a custom "bridge" type:

// this works
BoolLikeC evil = 7;
if (evil) Console.WriteLine("7 is so true");

// and this works too
if ((BoolLikeC)7) Console.WriteLine("7 is so true");

// but this still won't work, thankfully
if (7) Console.WriteLine("7 is so true");

// and neither will this
if ((bool)7) Console.WriteLine("7 is so true");

// ...

public struct BoolLikeC
{
    private readonly int _value;
    public int Value { get { return _value; } }

    public BoolLikeC(int value)
    {
        _value = value;
    }

    public static implicit operator bool(BoolLikeC x)
    {
        return (x.Value != 0);
    }

    public static implicit operator BoolLikeC(int x)
    {
        return new BoolLikeC(x);
    }
}