/// <summary>
/// Returns true if the value exists within the defined range.
/// </summary>
/// <param name="value">The value to verify is in the range.</param>
/// <returns>
/// <exception cref="ArgumentNullException"><paramref name="value"/> is null.</exception>
public static bool Contains <T>(
this IRange <Boundary <T> > range,
T value)
where T : IComparable <T>
{
if (range is null)
{
throw new ArgumentNullException(nameof(range));
}
range.AssertIsValidRange();
if (IsNaN(value))
{
return(false);
}
var low = value.CompareTo(range.Low);
if (low < 0)
{
return(false);
}
if (low == 0)
{
return(range.Low.Inclusive);
}
var high = value.CompareTo(range.High);
return(high < 0 || high == 0 && range.High.Inclusive);
}