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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. Elazar Leibovich‏ @elazarl 1 Oct 2017
      Replying to @elazarl @RichFelker and

      >GCC code from the compiler makers. If it's so easy how come the experts keep making those misatkes, even musl;-) http://www.openwall.com/lists/oss-security/2016/10/19/1 … >

      2 replies 0 retweets 0 likes
    2. Rich Felker‏ @RichFelker 1 Oct 2017
      Replying to @elazarl @hyc_symas and

      Yes, experts do this because they think they're smarter than they are. You can be smart enough once or ten times, but not N times as N→∞.

      1 reply 0 retweets 0 likes
    3. Rich Felker‏ @RichFelker 1 Oct 2017
      Replying to @RichFelker @elazarl and

      But it's still conscious breaking of simple rules that they (we, me included) should be following.

      2 replies 0 retweets 0 likes
    4. Elazar Leibovich‏ @elazarl 1 Oct 2017
      Replying to @RichFelker @hyc_symas and

      Even assuming this is correct. Think about it like a manager. The fact that no one can really keep those rules, makes them useless

      2 replies 0 retweets 1 like
    5. Elazar Leibovich‏ @elazarl 1 Oct 2017
      Replying to @elazarl @RichFelker and

      > Details. Strict aliasing, easy? Even @johnregehr @spun_off concludes one mitigates SA by disabling it. Stackoverflow easy? W/ recursion?

      1 reply 0 retweets 0 likes
    6. Rich Felker‏ @RichFelker 1 Oct 2017
      Replying to @elazarl @hyc_symas and

      You can't have aliasing UB if you never cast pointers or use implicit void* conversions. Never cast pointers is basically rule #1.

      4 replies 0 retweets 0 likes
    7. friend void‏ @volatile_void 2 Oct 2017
      Replying to @RichFelker @elazarl and

      Applied literally, this rule precludes dynamic allocation, not to mention any kind of qsort-like genericity. It's a very restricted sublang.

      2 replies 0 retweets 2 likes
    8. Howard Chu‏ @hyc_symas 2 Oct 2017
      Replying to @volatile_void @RichFelker and

      Actually precludes self-hosting compilers; can't implement the lang in itself.

      1 reply 0 retweets 0 likes
    9. Rich Felker‏ @RichFelker 2 Oct 2017
      Replying to @hyc_symas @elazarl and

      This is false. You can obviously implement an interp for a trivial lang without breaking the rule & use that as intermediary.

      1 reply 0 retweets 0 likes
    10. Howard Chu‏ @hyc_symas 2 Oct 2017
      Replying to @RichFelker @elazarl and

      If you had to implement a separate interpreter you just proved my point.

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker 2 Oct 2017
      Replying to @hyc_symas @elazarl and

      That's just an existence proof not an optimality one. :-)

      1:44 PM - 2 Oct 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Rich Felker‏ @RichFelker 2 Oct 2017
          Replying to @RichFelker @hyc_symas and

          There's no fundamental reason a C compiler has to be written using any sort of OOP.

          1 reply 0 retweets 0 likes
        3. Elazar Leibovich‏ @elazarl 2 Oct 2017
          Replying to @RichFelker @hyc_symas and

          My main point here is, maybe C-with-restrictions is a good language. It's not how anyone uses C today, so less relevant to evaluate C.

          1 reply 0 retweets 0 likes
        4. Elazar Leibovich‏ @elazarl 2 Oct 2017
          Replying to @elazarl @RichFelker and

          Language should serve the real humans working today, with their culture and current knowledge base. If those two doesn't work - problems.

          1 reply 0 retweets 0 likes
        5. Elazar Leibovich‏ @elazarl 2 Oct 2017
          Replying to @elazarl @RichFelker and

          "If you follow rules, there won't be bugs" needs empirical evidence those rules are easy enough to follow in large project by average humans

          1 reply 0 retweets 0 likes
        6. Howard Chu‏ @hyc_symas 3 Oct 2017
          Replying to @elazarl @RichFelker and

          Automation will replace the majority of programmers. Making programming easy for "average humans" is a non-goal.

          1 reply 0 retweets 0 likes
        7. Elazar Leibovich‏ @elazarl 3 Oct 2017
          Replying to @hyc_symas @RichFelker and

          "Average human who are in the programmers workforce". Limiting candidate to work on prj to top 0.1%, or req 10yr self ed means bad tool.

          2 replies 0 retweets 0 likes
        8. Rich Felker‏ @RichFelker 3 Oct 2017
          Replying to @elazarl @hyc_symas and

          I agree, disagree with @hyc_symas's view here. Following safety rules should not require expertise, should be accessible to beginners.

          1 reply 0 retweets 1 like
        9. Rich Felker‏ @RichFelker 3 Oct 2017
          Replying to @RichFelker @elazarl and

          But in the case of C I think one big reason beginners make so many more mistakes is learning from actively-bad teachers/examples.

          1 reply 0 retweets 1 like
        10. 4 more replies

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