zRedShift

6 ms·

1. 31.▲
   by zRedShift 6y ago

   Yes, primitive types all implement Copy. Maybe playing around with the code would help you better, because that last line doesn't make any sense: https://play.rust-lang.org/?version=stable&mode=debug&editio...
2. 32.▲
   by zRedShift 6y ago

   In Rust ? is the try/error propagation operator. It converts the error to the correct type, if necessary, and returns it. let ok = return_result()?; and let ok = match return_result() { Ok(ok) => ok, Err(err) =
3. 33.▲
   by zRedShift 6y ago

   According to the reddit thread, the benchmarks were done on a pretty beefy MBP. The macOS malloc is known to perform poorly, so I wonder if it's possible to narrow the gap just by using jemalloc, without any other optimisations. &#
4. 34.▲
   by zRedShift 6y ago

   Of course. rustc has the "-C overflow-checks" flag. Cargo turns it on by default for debug builds. To turn it on for release builds, just put "overflow-checks = true" in the [profile.release] section of your Cargo.toml.
5. 35.▲
   by zRedShift 7y ago

   So it's using a K-D-B-Tree under the hood? SP-GiST, that is. https://en.wikipedia.org/wiki/K-D-B-tree