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enumerated types

summary

    The enumerated types are used for countable items, such as the cards in a deck of ordinary playing cards.

    This is a brief introduction. This data type is explained in detail in the chapter on enumerated ordinal types.

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enumerated values

    This is a brief introduction. This data type is explained in detail in the chapter on enumerated ordinal types.

    The enumerated types are used for countable items, such as the cards in a deck of ordinary playing cards.

enumerated type

    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.

JOVIAL

    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.


    The kinds of values provided by JOVIAL reflect the applications
    of the language; they are oriented toward engineering and contrl
    programming rather than, for example, commercial and business
    programming.  The JOVIAL values are:
    6.  Status values, which are special words.  They are used
        to describe the status of the system, or a particular
        part of the system, at any given time.  For example, status values of "V(OK)", "V(WEAK)", or "V(BAD)" can be
        used to indicate the condition of a power cell.

    Chapter 1 INTRODUCTION, page 3

         ITEM INDICATOR STAUS (V(RED),V(YELLOW),V(GREEN));
                               A status item, whose value can be
                               thought of as "V(RED)", "V(YELLOW)",
                               or "V(GREEN)" but which is, in fact,
                               compactly stored as an integer.  Thus
                               a programmer culd assign "V(RED)" to a
                               variable to indicate cooling system
                               failure instead of using a (presumably
                               non-mnemonic) integer.

    Chapter 1 INTRODUCTION, page 5

    1.1.5 Built-In Functions

    The JOVIAL built-in functions provide advanced, specialized
    operations that are not covered by the JOVIAL operators.

         NEXT(s,i)      The i'th status value after status value s

         FIRST(s)       First status value in status list for s
         LAST(s)        Last status value in status list for s

    Chapter 1 Introduction, page 9

    This is a brief introduction. This data type is explained in detail in the chapter on enumerated ordinal types.


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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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    Copyright © 2012 Milo

    Created: September 19, 2012

    Last Updated: September 20, 2012


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