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rustlang's profile
Rust Language
Rust Language
Rust Language
@rustlang

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Rust Language

@rustlang

A programming language empowering everyone to build reliable and efficient software.

rust-lang.org
Joined July 2010

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    1. Odin Holmes‏ @odinthenerd 30 Dec 2018
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      Since radical ideas for c++ seem to be the trend right now:I want data structures who's layout is(mostly) unobservable at compile time and infect every interface and data structure that contains them with this property. The optimizer should be able to rearrange and remove members

      5 replies 3 retweets 29 likes
    2. Jonathan Müller‏ @foonathan 30 Dec 2018
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      Replying to @odinthenerd

      Yes! The tricks I did in foonathan/tiny to reuse padding bytes really shouldn't be necessary.

      1 reply 0 retweets 5 likes
    3. Odin Holmes‏ @odinthenerd 30 Dec 2018
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      Replying to @foonathan

      And it would make coroutine implementation much more clean. Problem is as long as sizeof or alignof and whatnot work on the type tracking the effects of optimization changes is really complex

      2 replies 0 retweets 3 likes
    4. Odin Holmes‏ @odinthenerd 30 Dec 2018
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      Replying to @odinthenerd @foonathan

      In other words radical extension. As far as I know @rustlang has a concept of undefined layout but it's still not totally awesome for some reason

      1 reply 0 retweets 1 like
      Rust Language‏ @rustlang 30 Dec 2018
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      Replying to @odinthenerd @foonathan

      Oh? As far as we know, it is pretty awesome :)

      9:53 AM - 30 Dec 2018
      • 1 Retweet
      • 4 Likes
      • Martin Kojtal Jan Odin Holmes Emil Fresk
      1 reply 1 retweet 4 likes
        1. New conversation
        2. Odin Holmes‏ @odinthenerd 30 Dec 2018
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          Replying to @rustlang @foonathan

          Can the optimizer remove members of a Data structure if whole program optimization finds that they are never used?

          1 reply 0 retweets 1 like
        3. Odin Holmes‏ @odinthenerd 30 Dec 2018
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          Replying to @odinthenerd @rustlang @foonathan

          Or if they are used but always constant I guess one could potentially do some voodoo in some cases, as long as the compiler can track observable effects, which is pretty impossible if the size or alignment of the object can be used as input to meta programming

          0 replies 0 retweets 1 like
        4. End of conversation

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