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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. Rich Felker‏ @RichFelker Jan 29

      What would an ideal intro or "crash" course in C look like? Would they differ? Based on goal of reading or writing?

      4 replies 2 retweets 3 likes
      Show this thread
    2. Rich Felker‏ @RichFelker Jan 29

      I'm thinking start with printf and input from command line args only (to avoid scanf awfulness & need to learn arrays+strings enough to use fgets & to mimic how real cmdline tools work)...

      4 replies 0 retweets 2 likes
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    3. Rich Felker‏ @RichFelker Jan 29

      Of course you need some minimal intro of arrays to do argv[i], just passing to strtol/strtod at this point though.

      1 reply 0 retweets 0 likes
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      Rich Felker‏ @RichFelker Jan 29

      Then do as much as makes sense (student interest, time available, etc.) without strings - expressions, conditionals, loops, functions, ...

      8:59 PM - 29 Jan 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Jonas Termansen‏ @sortiecat Jan 31
          Replying to @RichFelker

          TA'ing an OS course with C beginners, they really needed to learn defensive programming: 1) Reading docs for function 2) Handling every return value 3) Cleaning up even in error conditions 4) Returning unsuccessfully appropriately from the current function.

          2 replies 1 retweet 1 like
        3. Jonas Termansen‏ @sortiecat Jan 31
          Replying to @sortiecat @RichFelker

          Defensive programming is such a key part of how you write C properly. It also teaches good reasoning about code and forces students to actually think about every single case. The students I TA'd had not learned this skill, and my attempt at requiring it was somewhat unsuccessful.

          3 replies 1 retweet 3 likes
        4. Rich Felker‏ @RichFelker Jan 31
          Replying to @sortiecat

          This is true for most/all languages. "Doesn't require defensive programming" is kinda the holy grail of language design.

          1 reply 0 retweets 1 like
        5. 1 more reply

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