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A comment on Null References: The Billion Dollar Mistake. Parent comment

Re:Null References: The Billion Dollar Mistake by cmrdporcupine on Saturday January 11, 2020 @09:20AM (#22019983)
AFAIK Standard ML predates Haskell and it has an option type.
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Re:Null References: The Billion Dollar Mistake by dunefox on Saturday January 11, 2020 @09:23AM (#22019997)
ML is even older than SML and has algebraic data types.
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