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A comment on Immer is a library of persistent and immutable data structures written in C++. Parent comment

Re:Immer is a library of persistent and immutable data struc... by skohan on Thursday September 12, 2019 @06:31AM (#20949905)
I am a fan of nouns(or gerunds) for pure functions, and verbs for mutating functions. I.e:

    x.add(y); // x now equals x + y 
    x.adding(y); // returns x + y without mutating x
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