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Hi Buck -
4b 0 saves one digit in memory compared to 10i.
??? 4b 0 takes four bytes. 10i takes four bytes. Using 4b 0 doesn't save any memory.
But I automatically recommend that people use 10i, because that 4b is like a CHAIN without checking the indicator. Moving to the 10i costs nothing and the code becomes compliant with external data sources and APIs.
Where I know the number can never be negative, like an array index, occurrence, relative record number, etc., I prefer to use u rather than i. This more than doubles the upper limit over an i (doubled + 1). Ken Opinions expressed are my own and do not necessarily represent the views of my employer or anyone in their right mind.
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