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This subchapter looks at enumerated ordinal types.
The enumerated types are used for countable items, such as the cards in a deck of ordinary playing cards.
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This subchapter is a stub section. It will be filled in with instructional material later. For now it serves the purpose of a place holder for the order of instruction.
Professors are invited to give feedback on both the proposed contents and the propsed order of this text book. Send commentary to Milo, PO Box 1361, Tustin, California, 92781, USA.
This subchapter looks at enumerated ordinal types (called user-defined ordinal types in Pascal).
The enumerated types are used for countable items, such as the cards in a deck of ordinary playing cards.
Many modern programming languages have an enumerated value data type. If not, a sequence of integers can be used instead. The enumerated data type simply makes it easier to keep track of the meaning of the integer values.
The following material is from the unclassified Computer Programming Manual for the JOVIAL (J73) Language, RADC-TR-81-143, Final Technical Report of June 1981.
Chapter 1 INTRODUCTION, page 3
“31 Every object in the language has a type, which characterizes a set of values and a set of applicable operations. The main classes of types are elementary types (comprising enumeration, numeric, and access types) and composite types (including array and record types).” —:Ada-Europe’s Ada Reference Manual: Introduction: Language Summary See legal information
“32/2 An enumeration type defines an ordered set of distinct enumeration literals, for example a list of states or an alphabet of characters. The enumeration types Boolean, Character, Wide_Character, and Wide_Wide_Character are predefined.” —:Ada-Europe’s Ada Reference Manual: Introduction: Language Summary See legal information
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View music player in action: www.musicinpublic.com/.
Create your own copy from the original source code/ (presented for learning programming).
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free computer programming text book projectBuilding a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming. If you like the idea of this project, Supporting the entire project: If you have a business or organization that can support the entire cost of this project, please contact Pr Ntr Kmt (my church) free downloadable college text book on computer programming. |
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