Yashodhan Joshi
Mar 22, 2023 ⋅ 7 min read

Using Cow in Rust for efficient memory utilization

Yashodhan Joshi I am a student interested in physics and systems programming currently exploring Rust and operating systems. I am also passionate about helping others learn.

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2 Replies to "Using Cow in Rust for efficient memory utilization"

  1. I really enjoyed your post. It really helped understand the problem well.
    I think there is a small bug, it doesn’t distract much from the value of the post, but it’s always nice if the code works. The first example is missing `seen_ids.insert(element.id.clone());`, or something of the sort when looping through the list to track if an id has been seen. The second code snippet has the HashSet insert.

    1. Hey Marc, thanks a lot for noticing and reporting this! The first example was initially supposed to be just a pseudo-code / algorithm, and then the proper code was supposed to be the second snippet. However, While writing and re-writing, I slipped in some code in the first, and the final version had the missing code line that you noticed. In any case I should have taken more care.
      Thanks a lot for commenting this, I have fixed the error now. Hope you found this post useful and fun to read!

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