![]() ![]() We couldn't have done it without all of you. Many people came together to create Rust 1.66.0. Linux builds now optimize the rustc frontend and LLVM backend with LTO and BOLT, respectively, improving both runtime performance and memory usage.There are other changes in the Rust 1.66 release, including: Add AsFd implementations for stdio lock types on WASI.In the following example, the function push_cap executes Vec::push 4 times in a loop: fn push_cap(v: &mut Vec) When benchmarking or examining the machine code produced by a compiler, it's often useful to prevent optimizations from occurring in certain places. Rust's monthly update is now live The big quality of life update, over 90 improvements and fixes. In the meantime, if all you need is an opaque handle to the discriminant, please see the std::mem::discriminant function. AdamHull38 FcpnchStds I have a windows server, since the latest update I am getting : EAC: Verify ID token. Since this feature is intended for use with cross-language FFI where unsafe code is already necessary, this should hopefully not be too much of an extra burden. Instead, currently unsafe code must be used to inspect the discriminant of an enum with fields. Bar::C as u8), Rust provides no language-level way to access the raw discriminant of an enum with fields. Note: whereas for field-less enums it is possible to inspect a discriminant via as casting (e.g. Without this feature, the only way to set the explicit value of Bar::C would be to add 41 unnecessary variants before it! Variants without explicitly-specified values will have discriminants that are automatically assigned according to their order in the source code, so Bar::A will have a discriminant of 0, Bar::B will have a discriminant of 1, and Bar::D will have a discriminant of 43. In addition, the Bar::C variant is guaranteed to have a discriminant of 42. Here the Bar enum is guaranteed to have the same layout as u8. Explicit discriminants are useful when passing values across language boundaries where the representation of the enum needs to match in both languages. Previously, you could use explicit discriminants on enums with representations, but only if none of their variants had fields. Might come across! What's in 1.66.0 stable Explicit discriminants on enums with fieldsĮnums with integer representations can now use explicit discriminants, even when they have fields. Updating locally to use the beta channel ( rustup default beta) or the nightlyĬhannel ( rustup default nightly). If you'd like to help us out by testing future releases, you might consider Our website, and check out the detailed release notes for If you don't have it already, you can get If you have a previous version of Rust installed via rustup, you can get 1.66.0 Today hJune goes over the upcoming quality of life changes coming to Rust in Decembers patch.Credit to Inigo Phentoya who discovered the roof bunkers fixhtt. Programming language empowering everyone to build reliable and efficient Keep in mind, much more happened throughout the year, this is just a highlight reel so to speak. To provide some perspective, this post summarizes additions to the game, month by month, in picture form. ![]() The Rust team is happy to announce a new version of Rust, 1.66.0. Happy New Year everyone It has been an incredible 12 months for Rust. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |