Implementation--
Change of Data List and Entries

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The Change of Data List shows a value change that occurs in a set of symbols. It is used in the Search Tree Node to indicate the changes needed to reach the goal state from the node's current state. Each change of data list entry represents a data change in one variable or symbol. Usually this represents a change in value from the current value to a goal value or from a current value to the next value.

Functionality of change of data lists includes the standard List functions as well as finding entries where the two values are equal and printing the list.

Functionality of change of data list entries include setting and retrieving the symbol reference and each value, retrieving the symbol name and type, finding a symbol reference for a given symbol and printing an entry.

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Related include files:

• changelist.h

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Andrew Tompkins
Beaverton, OR 97006
Last rev: 16 JUL 03
URL:

http://home.teleport.com/~andytom/simplan.docs/control/change.list.html

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