John Carmack on Mutable Variables

Re:John Carmack on Mutable Variables by Thorrez on Saturday November 01, 2025 @09:09AM (#45781369)

You can make everything read-only by default, and if you need non-read-only, you use "mutable".

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Re:John Carmack on Mutable Variables by alcover on Saturday November 01, 2025 @03:16PM (#45784475)

You need two keywords. One for assignability and one for writability :

    const ptr;  // can't reassign, can't write-through (if r/o by default)
    const mut ptr;  // can write

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