May 11, 2002 - Outside-the-Range Enum Values

Yehuda Shiran May 11, 2002
Outside-the-Range Enum Values
Tips: May 2002

Yehuda Shiran, Ph.D.
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An enumerated variable can assume values outside the range of its declared values. This is convenient if you want to combine two values to create a third one which is not defined as a member. Let's assume we have the following enumeration:

  enum tvNetworkType {
      ABC,
      CBS,
      NBC,
      FOX
    }
The following line demonstrates a combination of the members NBC and FOX:

  var tvCombination : tvNetworkType = tvNetworkType.NBC | tvNetworkType.FOX;
If you print the value of tvCombination above, you would get the value of 12 (the OR combination of 8 and 4).

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