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John Carmack on mutable variables

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498 points azhenley | 1 comments | 31 Oct 25 02:34 UTC | HN request time: 0.209s | source
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WalterBright ◴[31 Oct 25 18:08 UTC] No.45774916[source]▶
I'm curious where this fits in with single assignment semantics:

    int x = 3;
    x = 4; // error!
    int* p = &x;
    *p = 4; // is that an error?
replies(2): >>45774963 #>>45774985 #
1. wicharek ◴[31 Oct 25 18:15 UTC] No.45774985[source]▶
Yes, because line 3 would implicitly be: const int * p