private static DoubleRange? EnsureItemValueRange(DoubleRange? itemValueRange, BinaryItemType itemType)
{
Contract.Ensures(Contract.Result<DoubleRange?>() != null);
if (itemValueRange == null)
{
switch (itemType)
{
case BinaryItemType.Boolean:
return new DoubleRange(0.0, 1.0);
case BinaryItemType.Byte:
return new DoubleRange(0.0, byte.MaxValue);
case BinaryItemType.Int16:
return new DoubleRange(short.MinValue, short.MaxValue);
case BinaryItemType.Int32:
return new DoubleRange(int.MinValue, int.MaxValue);
case BinaryItemType.Int64:
return new DoubleRange(long.MinValue, long.MaxValue);
case BinaryItemType.UInt16:
return new DoubleRange(ushort.MinValue, ushort.MaxValue);
case BinaryItemType.UInt32:
return new DoubleRange(uint.MinValue, uint.MaxValue);
case BinaryItemType.UInt64:
return new DoubleRange(ulong.MinValue, ulong.MaxValue);
case BinaryItemType.Float:
return new DoubleRange(float.MinValue, float.MaxValue);
case BinaryItemType.Double:
return new DoubleRange(double.MinValue, double.MaxValue);
}
}
else
{
switch (itemType)
{
case BinaryItemType.Boolean:
return Bordered(itemValueRange.Value, new DoubleRange(0.0, 1.0));
case BinaryItemType.Byte:
return Bordered(itemValueRange.Value, new DoubleRange(0.0, byte.MaxValue));
case BinaryItemType.Int16:
return Bordered(itemValueRange.Value, new DoubleRange(short.MinValue, short.MaxValue));
case BinaryItemType.Int32:
return Bordered(itemValueRange.Value, new DoubleRange(int.MinValue, int.MaxValue));
case BinaryItemType.Int64:
return Bordered(itemValueRange.Value, new DoubleRange(long.MinValue, long.MaxValue));
case BinaryItemType.UInt16:
return Bordered(itemValueRange.Value, new DoubleRange(ushort.MinValue, ushort.MaxValue));
case BinaryItemType.UInt32:
return Bordered(itemValueRange.Value, new DoubleRange(uint.MinValue, uint.MaxValue));
case BinaryItemType.UInt64:
return Bordered(itemValueRange.Value, new DoubleRange(ulong.MinValue, ulong.MaxValue));
case BinaryItemType.Float:
return Bordered(itemValueRange.Value, new DoubleRange(float.MinValue, float.MaxValue));
case BinaryItemType.Double:
return Bordered(itemValueRange.Value, new DoubleRange(double.MinValue, double.MaxValue));
}
}
throw new ArgumentException(itemType + " is unknown.", "itemType");
}
public BinaryFeatureDescription(string id, BinaryItemType itemType, int itemCount, DoubleRange? itemValueRange = null, object context = null)
: base(id, EnsureItemValueRange(itemValueRange, itemType).Value, context)
{
Contract.Requires(!string.IsNullOrEmpty(id));
Contract.Requires(itemValueRange == null || !itemValueRange.Value.IsFixed);
Contract.Requires(itemCount > 0);
ItemType = itemType;
ItemCount = itemCount;
}
