Min, Max, MinMax

GenericsExtensions.cs

using System;

namespace Samples
{
    public static class GenericsExtensions
    {
        public static TValue MinMax<TValue>( TValue arg, TValue min, TValue max )
            where TValue : IComparable<TValue>
        {
            return Min( min, Max( max, arg ) );
        }

        public static TValue Max<TValue>( TValue arg, TValue max )
            where TValue : IComparable<TValue>
        {
            return
                null == arg ?
                null == max ? default( TValue )
                 : 1 == max.CompareTo( arg ) ? max : arg
                 : 1 == arg.CompareTo( max ) ? arg : max;
        }

        public static TValue Min<TValue>( TValue arg, TValue min )
            where TValue : IComparable<TValue>
        {
            return
                null == arg ?
                null == min ? default( TValue )
                 : 1 == min.CompareTo( arg ) ? arg : min
                 : 1 == arg.CompareTo( min ) ? min : arg;
        }
    }
}