public static void Validate(this IConstrainedInt val, string arg)
{
if (val == null || !val.CheckRange())
{
throw new ArgumentException(arg);
}
}
public static bool CheckRange(this IConstrainedInt val)
{
int value = val.Value;
return(value >= val.Min && value <= val.Max);
}
public static int ValueOrDefault(this IConstrainedInt val)
{
return((val != null) ? val.Value : default(int));
}