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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    1. Patrick Walton‏ @pcwalton 17 Jul 2017
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      My most unpopular opinion: Modern C++17 is significantly less safe than C.

      28 replies 69 retweets 189 likes
    2. serengeor‏ @Ernestas_J 19 Jul 2017
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      Replying to @pcwalton

      So, can you give a concrete example where c++ is "far less safe" than C?

      1 reply 0 retweets 1 like
    3. Patrick Walton‏ @pcwalton 20 Jul 2017
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      Replying to @Ernestas_J

      Use after free of a dangling reference. Destructors effectively implicitly call free() without you having to write that in the source.

      1 reply 0 retweets 1 like
    4. serengeor‏ @Ernestas_J 20 Jul 2017
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      Replying to @pcwalton

      Isn't dangling reference just a "fancy" way of making "use after free". And destructors don't call any memory freeing func explicitly afaik?

      1 reply 0 retweets 0 likes
      Patrick Walton‏ @pcwalton 21 Jul 2017
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      Replying to @Ernestas_J

      They call “operator delete” which frees memory. I explicitly wrote “effectively” there because I knew someone would pointlessly nitpick.

      9:30 AM - 21 Jul 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. serengeor‏ @Ernestas_J 21 Jul 2017
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          Replying to @pcwalton

          No they don't? You explicitly have to free resources that are on heap.

          1 reply 0 retweets 0 likes
        3. Patrick Walton‏ @pcwalton 21 Jul 2017
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          Replying to @Ernestas_J

          unique_ptr/shared_ptr does.

          1 reply 0 retweets 0 likes
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