A more efficient array lookup

A more efficient array lookup

Another way to optimize a lookup (especially when the array may only be partially filled) is to begin filling the array from the bottom up. That is ... in a 999-element array use element 999, 998, 997, etc. At completion of the fill routine save the number of the last element used.

Then on subsequent lookups to the array, use the saved value for a start point for the lookup ... "VALUE LOKUP ARRAY,X". By doing this, you only search the used portion of the array.

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This was first published in February 2002

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