itfa23-evp-sdm/Checksums/dotFionn.Checksum.Utils/Extensions.cs

using System;

namespace dotFionn.Checksum.Utils
{
    public static class Extensions
    {
        public static int DigitSum(this int inInt)
        {
            int digitSum = 0;

            while (inInt > 0) {
                digitSum += inInt % 10;
                inInt /= 10;
            }

            return digitSum;
        }
    }
}