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REPOSITION-FORWARD ( n )
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If the cursor in on a row—say, row 5—REPOSITION-FORWARD(1) moves the cursor to row 6, then to half way between rows 6 and 7. From this position, GET-PREV( ) moves the cursor to row 6, while GET-NEXT( ) moves the cursor to row 7.
If the cursor is between two rows—say, between rows 5 and 6— REPOSITION-FORWARD(1) moves the cursor to half way between rows 6 and 7. From this position, GET-PREV( ) moves the cursor to row 6, while GET-NEXT( ) moves the cursor to row 7.