public static Interval <V> ClosedStartClosedEnd <V>(V start, V end) where V : IComparable <V>
{
ValidatePointValueNotNull <V>(start);
ValidatePointValueNotNull <V>(end);
ValidateStartBeforeEnd(start, end);
return(new Interval <V>(IntervalPoint <V> .Closed(start), IntervalPoint <V> .Closed(end)));
}
public bool Contains(T value)
{
if (this.IsEmpty())
{
return(false);
}
var other = IntervalPoint <T> .Closed(value);
return(other >= Start && other <= End);
}
public static Interval <V> ClosedBetween <V>(Maybe <V> start, Maybe <V> end) where V : IComparable <V>
{
var startIntervalPoint = IntervalPoint <V> .NegativeInfinity <V>();
var endIntervalPoint = IntervalPoint <V> .PositiveInfinity <V>();
if (start.HasValue)
{
ValidatePointValueNotNull <V>(start.Value);
startIntervalPoint = IntervalPoint <V> .Closed(start.Value);
}
if (end.HasValue)
{
ValidatePointValueNotNull <V>(end.Value);
endIntervalPoint = IntervalPoint <V> .Closed(end.Value);
}
if (start.HasValue && end.HasValue)
{
ValidateStartBeforeEnd(start.Value, end.Value);
}
return(new Interval <V>(startIntervalPoint, endIntervalPoint));
}
/// <summary>
/// Creates a degenerated interval. A degenerated interval is an interval of one single value. It is the interval representation of a point.
/// </summary>
/// <typeparam name="V"></typeparam>
/// <param name="value"></param>
/// <returns></returns>
public static Interval <V> Degenerated <V>(V value) where V : IComparable <V>
{
ValidatePointValueNotNull <V>(value);
return(new Interval <V>(IntervalPoint <V> .Closed <V>(value), IntervalPoint <V> .Closed <V>(value)));
}
public static Interval <V> InfinityStartClosedEnd <V>(V end) where V : IComparable <V>
{
ValidatePointValueNotNull <V>(end);
return(new Interval <V>(IntervalPoint <V> .NegativeInfinity <V>(), IntervalPoint <V> .Closed(end)));
}
public static Interval <V> ClosedStartInfinityEnd <V>(V start) where V : IComparable <V>
{
ValidatePointValueNotNull <V>(start);
return(new Interval <V>(IntervalPoint <V> .Closed(start), IntervalPoint <V> .PositiveInfinity <V>()));
}