/// <summary>
/// Initializes a new instance of the <see cref="Interval<T>"/> class.
/// </summary>
/// <param name="lowerDirection">The lower direction.</param>
/// <param name="lowerValue">The lower value.</param>
/// <param name="upperValue">The upper value.</param>
/// <param name="upperDirection">The upper direction.</param>
public Interval(BoundDirection lowerDirection
, T lowerValue
, T upperValue
, BoundDirection upperDirection)
: this(new Bound <T>(BoundType.Lower, lowerDirection, lowerValue)
, new Bound <T>(BoundType.Upper, upperDirection, upperValue))
{
}
internal Bound(BoundType type, BoundDirection direction, T value, bool checkArguments)
{
if (checkArguments && Bound.IsInfinity(value) && direction == BoundDirection.Closed)
{
throw new ArgumentException("An infinity bound must define an opened direction.");
}
Type = type;
Direction = direction;
Value = value;
}
internal static bool TryParse <T>(BoundType type
, BoundDirection direction
, T value
, out Bound <T> result)
{
result = (Bound.IsInfinity(value) && direction == BoundDirection.Closed)
? default(Bound <T>)
: new Bound <T>(type, direction, value);
return(result != default(Bound <T>));
}
internal static bool TryParse <T>(BoundDirection lowerDirection
, T lowerValue
, T upperValue
, BoundDirection upperDirection
, out Interval <T> result)
{
Bound <T> lowerBound, upperBound;
if (Bound.TryParse(BoundType.Lower, lowerDirection, lowerValue, out lowerBound) &&
Bound.TryParse(BoundType.Upper, upperDirection, upperValue, out upperBound))
{
return(Interval.TryParse(lowerBound, upperBound, out result));
}
result = default(Interval <T>);
return(false);
}
/// <summary>
/// Initializes a new instance of the <see cref="Bound<T>"/> class.
/// </summary>
/// <param name="type">The bound type.</param>
/// <param name="direction">The bound direction.</param>
/// <param name="value">The bound value.</param>
/// <exception cref="ArgumentException">An infinity bound must define an <see cref="P:Direction.Opened"/> direction.</exception>
public Bound(BoundType type, BoundDirection direction, T value)
: this(type, direction, value, true)
{
}
internal static BoundDirection Reverse(BoundDirection value)
{
return(value == BoundDirection.Closed ? BoundDirection.Opened : BoundDirection.Closed);
}
internal static BoundDirection Max(BoundDirection x, BoundDirection y)
{
return(x < y ? y : x);
}
internal static BoundDirection Min(BoundDirection x, BoundDirection y)
{
return(x > y ? y : x);
}