diff options
| author | unknown <abramlujan@gmail.com> | 2022-01-03 01:39:43 -0300 |
|---|---|---|
| committer | Mark Rousskov <mark.simulacrum@gmail.com> | 2022-01-10 17:21:16 -0500 |
| commit | fc8af986fd9a102cb14b15ce22f8e58b52aaef52 (patch) | |
| tree | da645cad507db3211dc9c73d4fc91df023d1cbc2 | |
| parent | 89b9f7b284aacc5f8613438b80e4dd7bdd10549e (diff) | |
| download | rust-fc8af986fd9a102cb14b15ce22f8e58b52aaef52.tar.gz rust-fc8af986fd9a102cb14b15ce22f8e58b52aaef52.zip | |
Document Box<T> FFI guarantee in 1.41.0 release notes
Fixes #68676
| -rw-r--r-- | RELEASES.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/RELEASES.md b/RELEASES.md index 59d04d4ba76..c19b8c01ce9 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -2588,6 +2588,11 @@ Language - [Visibility modifiers (e.g. `pub`) are now syntactically allowed on trait items and enum variants.][66183] These are still rejected semantically, but can be seen and parsed by procedural macros and conditional compilation. +- [You can now define a Rust `extern "C"` function with `Box<T>` and use `T*` as the corresponding + type on the C side.][62514] Please see [the documentation][box-memory-layout] for more information, + including the important caveat about preferring to avoid `Box<T>` in Rust signatures for functions defined in C. + +[box-memory-layout]: https://doc.rust-lang.org/std/boxed/index.html#memory-layout Compiler -------- @@ -2662,6 +2667,7 @@ Compatibility Notes [54733]: https://github.com/rust-lang/rust/pull/54733/ [61351]: https://github.com/rust-lang/rust/pull/61351/ +[62514]: https://github.com/rust-lang/rust/pull/62514/ [67255]: https://github.com/rust-lang/rust/pull/67255/ [66661]: https://github.com/rust-lang/rust/pull/66661/ [66771]: https://github.com/rust-lang/rust/pull/66771/ |