using System.Collections.Generic;

​

public struct Wrapper

{

    public float Value;

}

​

public sealed class WrapperComparer : Comparer<Wrapper>

{

    public override int Compare(Wrapper x, Wrapper y)

        => Comparer<float>.Default.Compare(x.Value, y.Value);

}

​

public class Program

{

    public static void Main()

    {

        Wrapper wrapper1 = new Wrapper { Value = 42.0f };

        Wrapper wrapper2 = new Wrapper { Value = 12.0f };

        System.Console.WriteLine($"{WrapperComparer.Default.Compare(wrapper1, wrapper2)}");

    }

}