C# 3種の剰余演算

modulos.cs

using System;

public static class MyIntegerExtensions
{
    public static int TruncatedMod(this int dividend, int divisor)
    {
        return dividend % divisor;
    }

    public static int FlooredMod(this int dividend, int divisor)
    {
        return (dividend % divisor + divisor) % divisor;
    }

    public static int Mod(this int dividend, int divisor)
    {
        return (dividend % divisor + Math.Abs(divisor)) % divisor;
    }
}