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A comment on Functional programming is finally going mainstream. Parent comment

Re:Functional programming is finally going mainstream by yencabulator on Wednesday July 13, 2022 @01:46PM (#32086204)
Those copy-on-write linked data structures, with the implied pointer chasing, have a cost. That's what the parent is talking about...
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Re:Functional programming is finally going mainstream by ch4s3 on Wednesday July 13, 2022 @02:54PM (#32087185)
A lot of languages, like Erlang/BEAM, use pointers under the hood and aren't necessarily copying anything.
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