Support C23's Variadics Without a Named Parameter #124048
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This PR removes the static check that disallowed extern functions with ellipsis (varargs) as the only parameter since this is now valid in C23. Also, adds a doc comment for `check_decl_cvariadic_pos()` and fixes the name of the function (`varadic` -> `variadic`).
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rustbot has assigned @compiler-errors. Use |
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Concept seems reasonable to me. @rfcbot merge |
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Team member @joshtriplett has proposed to merge this. The next step is review by the rest of the tagged team members: No concerns currently listed. Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up! cc @rust-lang/lang-advisors: FCP proposed for lang, please feel free to register concerns. |
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Seems like a reasonable extension. @rfcbot reviewed |
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@rfcbot reviewed |
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🔔 This is now entering its final comment period, as per the review above. 🔔 |
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Yeah, since this is |
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@rustbot labels -I-lang-nominated We discussed this in the lang triage call today. People felt good about this, and it's now in FCP. |
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The final comment period, with a disposition to merge, as per the review above, is now complete. As the automated representative of the governance process, I would like to thank the author for their work and everyone else who contributed. This will be merged soon. |
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…riadics, r=compiler-errors Support C23's Variadics Without a Named Parameter Fixes rust-lang#123773 This PR removes the static check that disallowed extern functions with ellipsis (varargs) as the only parameter since this is now valid in C23. This will not break any existing code as mentioned in the proposal document: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf. Also, adds a doc comment for `check_decl_cvariadic_pos()` and fixes the name of the function (`varadic` -> `variadic`).
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…variadics, r=compiler-errors Support C23's Variadics Without a Named Parameter Fixes rust-lang#123773 This PR removes the static check that disallowed extern functions with ellipsis (varargs) as the only parameter since this is now valid in C23. This will not break any existing code as mentioned in the proposal document: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf. Also, adds a doc comment for `check_decl_cvariadic_pos()` and fixes the name of the function (`varadic` -> `variadic`).
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…kingjubilee Rollup of 8 pull requests Successful merges: - rust-lang#124048 (Support C23's Variadics Without a Named Parameter) - rust-lang#125046 (Only allow immutable statics with #[linkage]) - rust-lang#125466 (Don't continue probing for method if in suggestion and autoderef hits ambiguity) - rust-lang#125469 (Don't skip out of inner const when looking for body for suggestion) - rust-lang#125544 (Also mention my-self for other check-cfg docs changes) - rust-lang#125559 (Simplify the `unchecked_sh[lr]` ub-checks a bit) - rust-lang#125566 (Notify T-rustdoc for beta-accepted and stable-accepted too) - rust-lang#125582 (Avoid a `FieldIdx::from_usize` in InstSimplify) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#124048 - veera-sivarajan:bugfix-123773-c23-variadics, r=compiler-errors Support C23's Variadics Without a Named Parameter Fixes rust-lang#123773 This PR removes the static check that disallowed extern functions with ellipsis (varargs) as the only parameter since this is now valid in C23. This will not break any existing code as mentioned in the proposal document: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf. Also, adds a doc comment for `check_decl_cvariadic_pos()` and fixes the name of the function (`varadic` -> `variadic`).
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Update Rust toolchain from nightly-2024-05-27 to nightly-2024-05-28 without any other source changes. This is an automatically generated pull request. If any of the CI checks fail, manual intervention is required. In such a case, review the changes at https://github.com/rust-lang/rust from rust-lang@bdbbb6c up to rust-lang@84b40fc. The log for this commit range is: rust-lang@84b40fc908 Auto merge of rust-lang#125628 - matthiaskrgr:rollup-3zk9v3w, r=matthiaskrgr rust-lang@4966e1ae35 Rollup merge of rust-lang#125625 - ChrisDenton:line-endings, r=Mark-Simulacrum rust-lang@61f9d35798 Rollup merge of rust-lang#125616 - RalfJung:mir-validate-downcast-projection, r=compiler-errors rust-lang@e8dd585dd8 Rollup merge of rust-lang#125542 - GuillaumeGomez:migrate-rustdoc-verify-output-files, r=jieyouxu rust-lang@8bd15878eb Rollup merge of rust-lang#125339 - tbu-:pr_tidy_ui_tests_u32, r=clubby789 rust-lang@f00b02e6bb Auto merge of rust-lang#125599 - camelid:clarify-stability, r=notriddle,GuillaumeGomez rust-lang@7a847fc4fb Use grep to implement verify-line-endings rust-lang@b0f8618938 Auto merge of rust-lang#125413 - lcnr:ambig-drop-region-constraints, r=compiler-errors rust-lang@7d24f87068 MIR validation: ensure that downcast projection is followed by field projection rust-lang@f6e4703e91 Auto merge of rust-lang#125611 - GuillaumeGomez:rollup-dfavpgg, r=GuillaumeGomez rust-lang@bdf3864d51 Migrate `run-make/rustdoc-verify-output-files` to `rmake.rs` rust-lang@f0ab814aec Add `Rustdoc::output_format` rust-lang@1551fd1202 Add file path in case it cannot be read in `Diff::actual_file` rust-lang@90fec5a087 Add `copy_dir_all` and `recursive_diff` functions to `run-make-support` rust-lang@7083131c92 Rollup merge of rust-lang#125607 - GuillaumeGomez:migrate-compile-stdin, r=jieyouxu rust-lang@a9c125f864 Rollup merge of rust-lang#125597 - compiler-errors:early-binder, r=jackh726 rust-lang@cfa7ab474f Rollup merge of rust-lang#125535 - onur-ozkan:remove-deprecated-field, r=clubby789 rust-lang@f50b4f5034 Rollup merge of rust-lang#125530 - SparrowLii:expand2, r=petrochenkov rust-lang@ad37f40355 Rollup merge of rust-lang#125522 - spastorino:fix-lint-docs-edition-handling, r=Urgau,michaelwoerister rust-lang@86f2fa35a2 Rollup merge of rust-lang#125148 - RalfJung:codegen-sh, r=scottmcm rust-lang@6dddc888fc Rollup merge of rust-lang#124870 - Lokathor:update-result-docs, r=dtolnay rust-lang@a59072ec4f Auto merge of rust-lang#125602 - RalfJung:interpret-mir-lifetime, r=oli-obk rust-lang@e4abfaeb62 Migrate `run-make/compile-stdin` to `rmake.rs` rust-lang@b582f807fa Auto merge of rust-lang#125410 - fmease:adj-lint-diag-api, r=nnethercote rust-lang@fec98b3bbc Auto merge of rust-lang#125468 - BoxyUwU:remove_defid_from_regionparam, r=compiler-errors rust-lang@e8379c9598 interpret: get rid of 'mir lifetime everywhere rust-lang@36d36a3e1f interpret: the MIR is actually at lifetime 'tcx rust-lang@699d28f968 rustdoc: Show "const" for const-unstable if also overall unstable rust-lang@cdc509f7c0 Auto merge of rust-lang#125580 - RalfJung:miri-sync, r=RalfJung rust-lang@f92292978f Use EarlyBinder in rustc_type_ir, simplify imports rust-lang@993553ceb8 Uplift EarlyBinder rust-lang@529bb2573a Auto merge of rust-lang#125593 - workingjubilee:rollup-67qk7di, r=workingjubilee rust-lang@bbcdb4fd3e Give EarlyBinder a tcx parameter rust-lang@4ff78692db Rollup merge of rust-lang#125582 - scottmcm:less-from-usize, r=jieyouxu rust-lang@45507e4304 Rollup merge of rust-lang#125566 - camelid:notify-accepted, r=GuillaumeGomez rust-lang@25b079a1cf Rollup merge of rust-lang#125559 - scottmcm:simplify-shift-ubcheck, r=workingjubilee rust-lang@c51fc1d02b Rollup merge of rust-lang#125544 - Urgau:check-cfg-mention-cargo-specific, r=jieyouxu rust-lang@b65b2b6ced Rollup merge of rust-lang#125469 - compiler-errors:dont-skip-inner-const-body, r=cjgillot rust-lang@09e75921f3 Rollup merge of rust-lang#125466 - compiler-errors:dont-probe-for-ambig-in-sugg, r=jieyouxu rust-lang@5860d43af3 Rollup merge of rust-lang#125046 - bjorn3:no_mutable_static_linkage, r=cjgillot rust-lang@866630d004 Rollup merge of rust-lang#124048 - veera-sivarajan:bugfix-123773-c23-variadics, r=compiler-errors rust-lang@0aad3f64e2 Auto merge of rust-lang#125576 - lnicola:sync-from-ra, r=lnicola rust-lang@d37f456b2a Avoid a `FieldIdx::from_usize` in InstSimplify rust-lang@0963353634 Auto merge of rust-lang#3631 - RalfJung:blocking-refactor, r=RalfJung rust-lang@2e89443b93 add a macro to declare thread unblock callbacks rust-lang@8e861c6c4c Auto merge of rust-lang#3632 - RalfJung:readdir, r=RalfJung rust-lang@350f5c88db unix/fs: a bit of cleanup in macos_fbsd_readdir_r rust-lang@e09bf5694b Auto merge of rust-lang#3633 - RalfJung:target, r=RalfJung rust-lang@cbec1288a2 fix './miri run --dep --target _' rust-lang@e6bb468b53 data_race: vector indices can be reused immediately when the thread is gone rust-lang@a131243557 completely refactor how we manage blocking and unblocking threads rust-lang@f7ca8a6d66 Auto merge of rust-lang#17296 - mathew-horner:no-clone-target, r=Veykril rust-lang@bd9cc02d10 Auto merge of rust-lang#17295 - 0xJonas:fix_passing_env_vars_to_cpptools, r=Veykril rust-lang@5fa30f7eaa make release_clock always work on the current thread rust-lang@fa7a3f9049 rustdoc: Elide const-unstable if also unstable overall rust-lang@91b3ef5b4a Notify T-rustdoc for beta-accepted and stable-accepted too rust-lang@9b480da367 It seems that anchor names are implicitly all lowercase rust-lang@0c84361342 Simplify the `unchecked_sh[lr]` ub-checks a bit rust-lang@f8279b10c3 Fix URL target, it's in the module not the type. rust-lang@2b2f83e5ff github showed that weird. rust-lang@2e8f14fb37 correct for copy paste errors when fixing wrapping. rust-lang@22668e83f6 Resolve rust-lang#124870 (comment) rust-lang@939f2671a0 revert to the inconsistent paragraph wrapping. rust-lang@eb9894f3c9 Removed return rust-lang@afa8dfc51f Avoid clone when constructing runnable label. rust-lang@09677b03dd Formatting rust-lang@78fe45e273 Semicolon rust-lang@2315c6b764 Use correct format for setting environment variables when debugging with cpptools rust-lang@331bb3f10d Auto merge of rust-lang#3630 - rust-lang:rustup-2024-05-25, r=saethlin rust-lang@bebcb4e4b8 Also mention my-self for check-cfg docs changes rust-lang@c76477d909 add change entry rust-lang@56dddd4c7e Remove deprecated field `dist.missing-tools` rust-lang@1d0ad04993 Merge from rustc rust-lang@3cfcfbf083 Preparing for merge from rustc rust-lang@41d4a95fca Add "better" edition handling on lint-docs tool rust-lang@278212342e cleanup dependence of `ExtCtxt` in transcribe when macro expansion rust-lang@24b5466892 drop region constraints for ambiguous goals rust-lang@ed8e436916 move generics_of call outside of iter rust-lang@56d77b9048 Auto merge of rust-lang#17275 - roife:fix-issue-17012, r=Veykril rust-lang@796cb8031d Remove failing tests rust-lang@f856ee357c Remove `DefId` from `EarlyParamRegion` (clippy/smir) rust-lang@fe2d7794ca Remove `DefId` from `EarlyParamRegion` (tedium/diagnostics) rust-lang@bd6344d829 Remove `DefId` from `EarlyParamRegion` (type system) rust-lang@b7b350cff7 docs rust-lang@008f6b3a3f Auto merge of rust-lang#3626 - devnexen:pthread_name_illumos, r=oli-obk rust-lang@7fc41d1bdf Auto merge of rust-lang#3625 - Strophox:miri-allocation-fix, r=RalfJung rust-lang@b84620ff17 extend comments rust-lang@88d519f718 Auto merge of rust-lang#3628 - RalfJung:tokio, r=RalfJung rust-lang@561bd9a5ec add back some tokio features rust-lang@10d414091b Auto merge of rust-lang#3627 - rust-lang:rustup-2024-05-24, r=RalfJung rust-lang@4763eaf066 fmt rust-lang@debf88ae1a Merge from rustc rust-lang@9ce95c30b2 Preparing for merge from rustc rust-lang@c58b7c9c81 Don't skip inner const when looking for body for suggestion rust-lang@4bc41b91d7 Don't continue probing for method if in suggestion and autoderef hits ambiguity rust-lang@7f5e0aade8 solaris add suport for threadname. rust-lang@3c7a13d870 tests: update test for runnables rust-lang@c10bda5577 Update docs rust-lang@1a37cfb703 Use cwd from runnable.args for debugger rust-lang@7b54c8231e Revert "Debug use cargo workspace root as cwd. fixes rust-lang#13022" rust-lang@d83b267bc1 Add cwd to CargoRunnable rust-lang@6259991f04 Auto merge of rust-lang#17287 - Veykril:sysroot-encode-empty, r=Veykril rust-lang@f93256ca42 Allow sysroots to only consist of the source root dir rust-lang@1b374dfd9b differentiate between layout and alloc_layout rust-lang@56c363b43e fix alloc_bytes (always allocate at least 1B) rust-lang@ecadf37df4 Auto merge of rust-lang#17284 - Veykril:doc-links, r=Veykril rust-lang@616fdd04bb Use correct toolchain channel when generating builtin type doc links rust-lang@6e8646df8b Auto merge of rust-lang#17174 - Kohei316:fix-infer-async-block-with-tail-return-expr, r=Veykril rust-lang@425ed6a181 Update crates/hir-ty/src/infer/expr.rs rust-lang@68fe34a4c2 Auto merge of rust-lang#17140 - harrysarson:harry-unused-self, r=Veykril rust-lang@6ea763b9e2 Auto merge of rust-lang#3624 - rust-lang:rustup-2024-05-23, r=RalfJung rust-lang@400835fd11 fmt rust-lang@f1ffb8d859 Merge from rustc rust-lang@807a0f8c21 Preparing for merge from rustc rust-lang@37bf2d2dab Delay the construction of early lint diag structs rust-lang@9f67c50128 Remove `DelayDm` rust-lang@06bc4fc671 Remove `LintDiagnostic::msg` rust-lang@366ef95407 Slightly clean up some lint infra code rust-lang@ac2708a347 Auto merge of rust-lang#17270 - davidbarsky:david/fix-completions-from-associated-types, r=Veykril rust-lang@f2c3ef77b1 fix: ensure implied bounds from associated types are considered in autocomplete rust-lang@04a9a1a531 Auto merge of rust-lang#3614 - devnexen:illumos_time_support, r=oli-obk rust-lang@0916e72a34 Auto merge of rust-lang#17251 - roife:fix-issue-17057, r=Veykril rust-lang@56ce7e0e06 Auto merge of rust-lang#17252 - davidbarsky:david/refactor-standalone-bools-into-struct, r=Veykril rust-lang@f50f8fbcb9 Simplify rust-lang@7a21dff517 internal: refactor `prefer_no_std`/`prefer_prelude` bools into a struct rust-lang@4e9b12870c fix: check pseudo-block by local_id instead of ModuleOrigin rust-lang@ad810a51f0 Auto merge of rust-lang#17277 - Veykril:find-path-fixes, r=Veykril rust-lang@3f638a9291 solaris/illumos localtime_r / clock_getime support enabled. rust-lang@d9dda8f84f Auto merge of rust-lang#17279 - Veykril:format_args-escape, r=Veykril rust-lang@2ff9bab2eb fix: Fix format_args lowering passing incorrect parameters to rustc_parse_format rust-lang@39e6032445 Auto merge of rust-lang#17248 - mladedav:dm/delay-clear, r=Veykril rust-lang@24bf53d993 Auto merge of rust-lang#17268 - Veykril:signatures, r=Veykril rust-lang@b1830a5fe6 Update assists test fixtures rust-lang@b29c755572 expectify find_path tests rust-lang@5992af6506 fix: Fix general find-path inconsistencies rust-lang@7fd1429754 Auto merge of rust-lang#3623 - RalfJung:rustup, r=RalfJung rust-lang@abbe244a81 clippy rust-lang@a1bc030b70 Merge from rustc rust-lang@24138f0034 Preparing for merge from rustc rust-lang@c8b0e5b1a4 The number of tests does not depend on the architecture's pointer width rust-lang@719eee2d82 test: add tests for extern preludes resolving in local mods rust-lang@41c006e21a Auto merge of rust-lang#3610 - marc0246:missing-error-kinds, r=RalfJung rust-lang@37a37f6ab3 Use `throw_unsup_format` instead of returning `ENOTSUP` in the mmap shim rust-lang@6438554bce Show fn traits in signature info for trait implementors rust-lang@f42e55dfc8 Enable linked locations for closure param inlay hints rust-lang@4b3d7f6039 Render closure fn trait kind in siganture help rust-lang@7045044da3 Allow hir::Param to refer to other entity params aside from functions rust-lang@9ff4ffb817 Update builtin tool list rust-lang@ea2a16cadb fix: resolve extern prelude for local mods in block modules rust-lang@1287e868e9 Clear diagnostics only after new ones were received rust-lang@17bd43cb25 codegen: tweak/extend shift comments rust-lang@b468f21051 Don't use `T` with both Result and Option, improve explanation. rust-lang@531dae1cdf Only allow immutable statics with #[linkage] rust-lang@10f8d1ffef use teletype on the attribute name rust-lang@f94fa6bee3 Some Result combinations work like an Option. rust-lang@dd16cbcb4e braces around {self} in UseTree are not unnecessary rust-lang@39a653f632 Fix coercion of async block rust-lang@f005b451c2 Support C23's Variadics Without a Named Parameter rust-lang@62a104df98 Update Tests Co-authored-by: qinheping <[email protected]>
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Oct 13, 2024
This is based on the pkgsrc-wip rust180 package, retaining the main pkgsrc changes as best as I could. Pkgsrc changes: * Adapt checksums and patches. * Make this work again on big-endian aarch64 (at least on NetBSD). * Make the choice of GCC = 12 work for sparc64 by testing options after options.mk is included (which is required...). Makes this work on NetBSD/sparc64 10.0 again. Upstream chnages: Version 1.80.1 (2024-08-08) =========================== - [Fix miscompilation in the jump threading MIR optimization when comparing floats] (rust-lang/rust#128271) - [Revert changes to the `dead_code` lint from 1.80.0] (rust-lang/rust#128618) Version 1.80.0 (2024-07-25) ========================== Language -------- - [Document maximum allocation size] (rust-lang/rust#116675) - [Allow zero-byte offsets and ZST read/writes on arbitrary pointers] (rust-lang/rust#117329) - [Support C23's variadics without a named parameter] (rust-lang/rust#124048) - [Stabilize `exclusive_range_pattern` feature] (rust-lang/rust#124459) - [Guarantee layout and ABI of `Result` in some scenarios] (rust-lang/rust#124870) Compiler -------- - [Update cc crate to v1.0.97 allowing additional spectre mitigations on MSVC targets] (rust-lang/rust#124892) - [Allow field reordering on types marked `repr(packed(1))`] (rust-lang/rust#125360) - [Add a lint against never type fallback affecting unsafe code] (rust-lang/rust#123939) - [Disallow cast with trailing braced macro in let-else] (rust-lang/rust#125049) - [Expand `for_loops_over_fallibles` lint to lint on fallibles behind references.] (rust-lang/rust#125156) - [self-contained linker: retry linking without `-fuse-ld=lld` on CCs that don't support it] (rust-lang/rust#125417) - [Do not parse CVarArgs (`...`) as a type in trait bounds] (rust-lang/rust#125863) - Improvements to LLDB formatting [#124458] (rust-lang/rust#124458) [#124500] (rust-lang/rust#124500) - [For the wasm32-wasip2 target default to PIC and do not use `-fuse-ld=lld`] (rust-lang/rust#124858) - [Add x86_64-unknown-linux-none as a tier 3 target] (rust-lang/rust#125023) - [Lint on `foo.into_iter()` resolving to `&Box<[T]>: IntoIterator`] (rust-lang/rust#124097) Libraries --------- - [Add `size_of` and `size_of_val` and `align_of` and `align_of_val` to the prelude] (rust-lang/rust#123168) - [Abort a process when FD ownership is violated] (rust-lang/rust#124210) - [io::Write::write_fmt: panic if the formatter fails when the stream does not fail] (rust-lang/rust#125012) - [Panic if `PathBuf::set_extension` would add a path separator] (rust-lang/rust#125070) - [Add assert_unsafe_precondition to unchecked_{add,sub,neg,mul,shl,shr} methods] (rust-lang/rust#121571) - [Update `c_char` on AIX to use the correct type] (rust-lang/rust#122986) - [`offset_of!` no longer returns a temporary] (rust-lang/rust#124484) - [Handle sigma in `str.to_lowercase` correctly] (rust-lang/rust#124773) - [Raise `DEFAULT_MIN_STACK_SIZE` to at least 64KiB] (rust-lang/rust#126059) Stabilized APIs --------------- - [`impl Default for Rc<CStr>`] (https://doc.rust-lang.org/beta/alloc/rc/struct.Rc.html#impl-Default-for-Rc%3CCStr%3E) - [`impl Default for Rc<str>`] (https://doc.rust-lang.org/beta/alloc/rc/struct.Rc.html#impl-Default-for-Rc%3Cstr%3E) - [`impl Default for Rc<[T]>`] (https://doc.rust-lang.org/beta/alloc/rc/struct.Rc.html#impl-Default-for-Rc%3C%5BT%5D%3E) - [`impl Default for Arc<str>`] (https://doc.rust-lang.org/beta/alloc/sync/struct.Arc.html#impl-Default-for-Arc%3Cstr%3E) - [`impl Default for Arc<CStr>`] (https://doc.rust-lang.org/beta/alloc/sync/struct.Arc.html#impl-Default-for-Arc%3CCStr%3E) - [`impl Default for Arc<[T]>`] (https://doc.rust-lang.org/beta/alloc/sync/struct.Arc.html#impl-Default-for-Arc%3C%5BT%5D%3E) - [`impl IntoIterator for Box<[T]>`] (https://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#impl-IntoIterator-for-Box%3C%5BI%5D,+A%3E) - [`impl FromIterator<String> for Box<str>`] (https://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#impl-FromIterator%3CString%3E-for-Box%3Cstr%3E) - [`impl FromIterator<char> for Box<str>`] (https://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#impl-FromIterator%3Cchar%3E-for-Box%3Cstr%3E) - [`LazyCell`] (https://doc.rust-lang.org/beta/core/cell/struct.LazyCell.html) - [`LazyLock`] (https://doc.rust-lang.org/beta/std/sync/struct.LazyLock.html) - [`Duration::div_duration_f32`] (https://doc.rust-lang.org/beta/std/time/struct.Duration.html#method.div_duration_f32) - [`Duration::div_duration_f64`] (https://doc.rust-lang.org/beta/std/time/struct.Duration.html#method.div_duration_f64) - [`Option::take_if`] (https://doc.rust-lang.org/beta/std/option/enum.Option.html#method.take_if) - [`Seek::seek_relative`] (https://doc.rust-lang.org/beta/std/io/trait.Seek.html#method.seek_relative) - [`BinaryHeap::as_slice`] (https://doc.rust-lang.org/beta/std/collections/struct.BinaryHeap.html#method.as_slice) - [`NonNull::offset`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.offset) - [`NonNull::byte_offset`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.byte_offset) - [`NonNull::add`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.add) - [`NonNull::byte_add`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.byte_add) - [`NonNull::sub`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.sub) - [`NonNull::byte_sub`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.byte_sub) - [`NonNull::offset_from`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.offset_from) - [`NonNull::byte_offset_from`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.byte_offset_from) - [`NonNull::read`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.read) - [`NonNull::read_volatile`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.read_volatile) - [`NonNull::read_unaligned`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.read_unaligned) - [`NonNull::write`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.write) - [`NonNull::write_volatile`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.write_volatile) - [`NonNull::write_unaligned`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.write_unaligned) - [`NonNull::write_bytes`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.write_bytes) - [`NonNull::copy_to`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.copy_to) - [`NonNull::copy_to_nonoverlapping`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.copy_to_nonoverlapping) - [`NonNull::copy_from`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.copy_from) - [`NonNull::copy_from_nonoverlapping`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.copy_from_nonoverlapping) - [`NonNull::replace`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.replace) - [`NonNull::swap`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.swap) - [`NonNull::drop_in_place`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.drop_in_place) - [`NonNull::align_offset`] (https://doc.rust-lang.org/beta/std/ptr/struct.NonNull.html#method.align_offset) - [`<[T]>::split_at_checked`] (https://doc.rust-lang.org/beta/std/primitive.slice.html#method.split_at_checked) - [`<[T]>::split_at_mut_checked`] (https://doc.rust-lang.org/beta/std/primitive.slice.html#method.split_at_mut_checked) - [`str::split_at_checked`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.split_at_checked) - [`str::split_at_mut_checked`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.split_at_mut_checked) - [`str::trim_ascii`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.trim_ascii) - [`str::trim_ascii_start`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.trim_ascii_start) - [`str::trim_ascii_end`] (https://doc.rust-lang.org/beta/std/primitive.str.html#method.trim_ascii_end) - [`<[u8]>::trim_ascii`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.trim_ascii) - [`<[u8]>::trim_ascii_start`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.trim_ascii_start) - [`<[u8]>::trim_ascii_end`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.trim_ascii_end) - [`Ipv4Addr::BITS`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv4Addr.html#associatedconstant.BITS) - [`Ipv4Addr::to_bits`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv4Addr.html#method.to_bits) - [`Ipv4Addr::from_bits`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv4Addr.html#method.from_bits) - [`Ipv6Addr::BITS`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv6Addr.html#associatedconstant.BITS) - [`Ipv6Addr::to_bits`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv6Addr.html#method.to_bits) - [`Ipv6Addr::from_bits`] (https://doc.rust-lang.org/beta/core/net/struct.Ipv6Addr.html#method.from_bits) - [`Vec::<[T; N]>::into_flattened`] (https://doc.rust-lang.org/beta/alloc/vec/struct.Vec.html#method.into_flattened) - [`<[[T; N]]>::as_flattened`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.as_flattened) - [`<[[T; N]]>::as_flattened_mut`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.as_flattened_mut) These APIs are now stable in const contexts: - [`<[T]>::last_chunk`] (https://doc.rust-lang.org/beta/core/primitive.slice.html#method.last_chunk) - [`BinaryHeap::new`] (https://doc.rust-lang.org/beta/std/collections/struct.BinaryHeap.html#method.new) Cargo ----- - [Stabilize `-Zcheck-cfg` as always enabled] (rust-lang/cargo#13571) - [Warn, rather than fail publish, if a target is excluded] (rust-lang/cargo#13713) - [Add special `check-cfg` lint config for the `unexpected_cfgs` lint] (rust-lang/cargo#13913) - [Stabilize `cargo update --precise <yanked>`] (rust-lang/cargo#13974) - [Don't change file permissions on `Cargo.toml` when using `cargo add`] (rust-lang/cargo#13898) - [Support using `cargo fix` on IPv6-only networks] (rust-lang/cargo#13907) Rustdoc ----- - [Allow searching for references] (rust-lang/rust#124148) - [Stabilize `custom_code_classes_in_docs` feature] (rust-lang/rust#124577) - [fix: In cross-crate scenarios show enum variants on type aliases of enums] (rust-lang/rust#125300) Compatibility Notes ------------------- - [rustfmt estimates line lengths differently when using non-ascii characters] (rust-lang/rustfmt#6203) - [Type aliases are now handled correctly in orphan check] (rust-lang/rust#117164) - [Allow instructing rustdoc to read from stdin via `-`] (rust-lang/rust#124611) - [`std::env::{set_var, remove_var}` can no longer be converted to safe function pointers and no longer implement the `Fn` family of traits] (rust-lang/rust#124636) - [Warn (or error) when `Self` constructor from outer item is referenced in inner nested item] (rust-lang/rust#124187) - [Turn `indirect_structural_match` and `pointer_structural_match` lints into hard errors] (rust-lang/rust#124661) - [Make `where_clause_object_safety` lint a regular object safety violation] (rust-lang/rust#125380) - [Turn `proc_macro_back_compat` lint into a hard error.] (rust-lang/rust#125596) - [Detect unused structs even when implementing private traits] (rust-lang/rust#122382) - [`std::sync::ReentrantLockGuard<T>` is no longer `Sync` if `T: !Sync`] (rust-lang/rust#125527) which means [`std::io::StdoutLock` and `std::io::StderrLock` are no longer Sync] (rust-lang/rust#127340) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - Misc improvements to size of generated html by rustdoc e.g. [#124738] (rust-lang/rust#124738) and [#123734] (rust-lang/rust#123734) - [MSVC targets no longer depend on libc] (rust-lang/rust#124050) Version 1.79.0 (2024-06-13) ========================== Language -------- - [Stabilize inline `const {}` expressions.] (rust-lang/rust#104087) - [Prevent opaque types being instantiated twice with different regions within the same function.] (rust-lang/rust#116935) - [Stabilize WebAssembly target features that are in phase 4 and 5.] (rust-lang/rust#117457) - [Add the `redundant_lifetimes` lint to detect lifetimes which are semantically redundant.] (rust-lang/rust#118391) - [Stabilize the `unnameable_types` lint for public types that can't be named.] (rust-lang/rust#120144) - [Enable debuginfo in macros, and stabilize `-C collapse-macro-debuginfo` and `#[collapse_debuginfo]`.] (rust-lang/rust#120845) - [Propagate temporary lifetime extension into `if` and `match` expressions.] (rust-lang/rust#121346) - [Restrict promotion of `const fn` calls.] (rust-lang/rust#121557) - [Warn against refining impls of crate-private traits with `refining_impl_trait` lint.] (rust-lang/rust#121720) - [Stabilize associated type bounds (RFC 2289).] (rust-lang/rust#122055) - [Stabilize importing `main` from other modules or crates.] (rust-lang/rust#122060) - [Check return types of function types for well-formedness] (rust-lang/rust#115538) - [Rework `impl Trait` lifetime inference] (rust-lang/rust#116891) - [Change inductive trait solver cycles to be ambiguous] (rust-lang/rust#122791) Compiler -------- - [Define `-C strip` to only affect binaries, not artifacts like `.pdb`.] (rust-lang/rust#115120) - [Stabilize `-Crelro-level` for controlling runtime link hardening.] (rust-lang/rust#121694) - [Stabilize checking of `cfg` names and values at compile-time with `--check-cfg`.] (rust-lang/rust#123501) *Note that this only stabilizes the compiler part, the Cargo part is still unstable in this release.* - [Add `aarch64-apple-visionos` and `aarch64-apple-visionos-sim` tier 3 targets.] (rust-lang/rust#121419) - [Add `riscv32ima-unknown-none-elf` tier 3 target.] (rust-lang/rust#122696) - [Promote several Windows targets to tier 2] (rust-lang/rust#121712): `aarch64-pc-windows-gnullvm`, `i686-pc-windows-gnullvm`, and `x86_64-pc-windows-gnullvm`. Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Implement `FromIterator` for `(impl Default + Extend, impl Default + Extend)`.] (rust-lang/rust#107462) - [Implement `{Div,Rem}Assign<NonZero<X>>` on `X`.] (rust-lang/rust#121952) - [Document overrides of `clone_from()` in core/std.] (rust-lang/rust#122201) - [Link MSVC default lib in core.] (rust-lang/rust#122268) - [Caution against using `transmute` between pointers and integers.] (rust-lang/rust#122379) - [Enable frame pointers for the standard library.] (rust-lang/rust#122646) Stabilized APIs --------------- - [`{integer}::unchecked_add`] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.unchecked_add) - [`{integer}::unchecked_mul`] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.unchecked_mul) - [`{integer}::unchecked_sub`] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.unchecked_sub) - [`<[T]>::split_at_unchecked`] (https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_at_unchecked) - [`<[T]>::split_at_mut_unchecked`] (https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_at_mut_unchecked) - [`<[u8]>::utf8_chunks`] (https://doc.rust-lang.org/stable/core/primitive.slice.html#method.utf8_chunks) - [`str::Utf8Chunks`] (https://doc.rust-lang.org/stable/core/str/struct.Utf8Chunks.html) - [`str::Utf8Chunk`] (https://doc.rust-lang.org/stable/core/str/struct.Utf8Chunk.html) - [`<*const T>::is_aligned`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_aligned) - [`<*mut T>::is_aligned`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_aligned-1) - [`NonNull::is_aligned`] (https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.is_aligned) - [`<*const [T]>::len`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.len) - [`<*mut [T]>::len`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.len-1) - [`<*const [T]>::is_empty`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_empty) - [`<*mut [T]>::is_empty`] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_empty-1) - [`NonNull::<[T]>::is_empty`] (https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.is_empty) - [`CStr::count_bytes`] (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes) - [`io::Error::downcast`] (https://doc.rust-lang.org/stable/std/io/struct.Error.html#method.downcast) - [`num::NonZero<T>`] (https://doc.rust-lang.org/stable/core/num/struct.NonZero.html) - [`path::absolute`] (https://doc.rust-lang.org/stable/std/path/fn.absolute.html) - [`proc_macro::Literal::byte_character`] (https://doc.rust-lang.org/stable/proc_macro/struct.Literal.html#method.byte_character) - [`proc_macro::Literal::c_string`] (https://doc.rust-lang.org/stable/proc_macro/struct.Literal.html#method.c_string) These APIs are now stable in const contexts: - [`Atomic*::into_inner`] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicUsize.html#method.into_inner) - [`io::Cursor::new`] (https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.new) - [`io::Cursor::get_ref`] (https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.get_ref) - [`io::Cursor::position`] (https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.position) - [`io::empty`] (https://doc.rust-lang.org/stable/std/io/fn.empty.html) - [`io::repeat`] (https://doc.rust-lang.org/stable/std/io/fn.repeat.html) - [`io::sink`] (https://doc.rust-lang.org/stable/std/io/fn.sink.html) - [`panic::Location::caller`] (https://doc.rust-lang.org/stable/std/panic/struct.Location.html#method.caller) - [`panic::Location::file`] (https://doc.rust-lang.org/stable/std/panic/struct.Location.html#method.file) - [`panic::Location::line`] (https://doc.rust-lang.org/stable/std/panic/struct.Location.html#method.line) - [`panic::Location::column`] (https://doc.rust-lang.org/stable/std/panic/struct.Location.html#method.column) Cargo ----- - [Prevent dashes in `lib.name`, always normalizing to `_`.] (rust-lang/cargo#12783) - [Stabilize MSRV-aware version requirement selection in `cargo add`.] (rust-lang/cargo#13608) - [Switch to using `gitoxide` by default for listing files.] (rust-lang/cargo#13696) Rustdoc ----- - [Always display stability version even if it's the same as the containing item.] (rust-lang/rust#118441) - [Show a single search result for items with multiple paths.] (rust-lang/rust#119912) - [Support typing `/` in docs to begin a search.] (rust-lang/rust#123355) Misc ---- Compatibility Notes ------------------- - [Update the minimum external LLVM to 17.] (rust-lang/rust#122649) - [`RustcEncodable` and `RustcDecodable` are soft-destabilized, to be removed from the prelude in next edition.] (rust-lang/rust#116016) - [The `wasm_c_abi` future-incompatibility lint will warn about use of the non-spec-compliant C ABI.] (rust-lang/rust#117918) Use `wasm-bindgen v0.2.88` to generate forward-compatible bindings. - [Check return types of function types for well-formedness] (rust-lang/rust#115538) Version 1.78.0 (2024-05-02) =========================== Language -------- - [Stabilize `#[cfg(target_abi = ...)]`] (rust-lang/rust#119590) - [Stabilize the `#[diagnostic]` namespace and `#[diagnostic::on_unimplemented]` attribute] (rust-lang/rust#119888) - [Make async-fn-in-trait implementable with concrete signatures] (rust-lang/rust#120103) - [Make matching on NaN a hard error, and remove the rest of `illegal_floating_point_literal_pattern`] (rust-lang/rust#116284) - [static mut: allow mutable reference to arbitrary types, not just slices and arrays] (rust-lang/rust#117614) - [Extend `invalid_reference_casting` to include references casting to bigger memory layout] (rust-lang/rust#118983) - [Add `non_contiguous_range_endpoints` lint for singleton gaps after exclusive ranges] (rust-lang/rust#118879) - [Add `wasm_c_abi` lint for use of older wasm-bindgen versions] (rust-lang/rust#117918) This lint currently only works when using Cargo. - [Update `indirect_structural_match` and `pointer_structural_match` lints to match RFC] (rust-lang/rust#120423) - [Make non-`PartialEq`-typed consts as patterns a hard error] (rust-lang/rust#120805) - [Split `refining_impl_trait` lint into `_reachable`, `_internal` variants] (rust-lang/rust#121720) - [Remove unnecessary type inference when using associated types inside of higher ranked `where`-bounds] (rust-lang/rust#119849) - [Weaken eager detection of cyclic types during type inference] (rust-lang/rust#119989) - [`trait Trait: Auto {}`: allow upcasting from `dyn Trait` to `dyn Auto`] (rust-lang/rust#119338) Compiler -------- - [Made `INVALID_DOC_ATTRIBUTES` lint deny by default] (rust-lang/rust#111505) - [Increase accuracy of redundant `use` checking] (rust-lang/rust#117772) - [Suggest moving definition if non-found macro_rules! is defined later] (rust-lang/rust#121130) - [Lower transmutes from int to pointer type as gep on null] (rust-lang/rust#121282) Target changes: - [Windows tier 1 targets now require at least Windows 10] (rust-lang/rust#115141) - [Enable CMPXCHG16B, SSE3, SAHF/LAHF and 128-bit Atomics in tier 1 Windows] (rust-lang/rust#120820) - [Add `wasm32-wasip1` tier 2 (without host tools) target] (rust-lang/rust#120468) - [Add `wasm32-wasip2` tier 3 target] (rust-lang/rust#119616) - [Rename `wasm32-wasi-preview1-threads` to `wasm32-wasip1-threads`] (rust-lang/rust#122170) - [Add `arm64ec-pc-windows-msvc` tier 3 target] (rust-lang/rust#119199) - [Add `armv8r-none-eabihf` tier 3 target for the Cortex-R52] (rust-lang/rust#110482) - [Add `loongarch64-unknown-linux-musl` tier 3 target] (rust-lang/rust#121832) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Bump Unicode to version 15.1.0, regenerate tables] (rust-lang/rust#120777) - [Make align_offset, align_to well-behaved in all cases] (rust-lang/rust#121201) - [PartialEq, PartialOrd: document expectations for transitive chains] (rust-lang/rust#115386) - [Optimize away poison guards when std is built with panic=abort] (rust-lang/rust#100603) - [Replace pthread `RwLock` with custom implementation] (rust-lang/rust#110211) - [Implement unwind safety for Condvar on all platforms] (rust-lang/rust#121768) - [Add ASCII fast-path for `char::is_grapheme_extended`] (rust-lang/rust#121138) Stabilized APIs --------------- - [`impl Read for &Stdin`] (https://doc.rust-lang.org/stable/std/io/struct.Stdin.html#impl-Read-for-%26Stdin) - [Accept non `'static` lifetimes for several `std::error::Error` related implementations] (rust-lang/rust#113833) - [Make `impl<Fd: AsFd>` impl take `?Sized`] (rust-lang/rust#114655) - [`impl From<TryReserveError> for io::Error`] (https://doc.rust-lang.org/stable/std/io/struct.Error.html#impl-From%3CTryReserveError%3E-for-Error) These APIs are now stable in const contexts: - [`Barrier::new()`] (https://doc.rust-lang.org/stable/std/sync/struct.Barrier.html#method.new) Cargo ----- - [Stabilize lockfile v4](rust-lang/cargo#12852) - [Respect `rust-version` when generating lockfile] (rust-lang/cargo#12861) - [Control `--charset` via auto-detecting config value] (rust-lang/cargo#13337) - [Support `target.<triple>.rustdocflags` officially] (rust-lang/cargo#13197) - [Stabilize global cache data tracking] (rust-lang/cargo#13492) Misc ---- - [rustdoc: add `--test-builder-wrapper` arg to support wrappers such as RUSTC_WRAPPER when building doctests] (rust-lang/rust#114651) Compatibility Notes ------------------- - [Many unsafe precondition checks now run for user code with debug assertions enabled] (rust-lang/rust#120594) This change helps users catch undefined behavior in their code, though the details of how much is checked are generally not stable. - [riscv only supports split_debuginfo=off for now] (rust-lang/rust#120518) - [Consistently check bounds on hidden types of `impl Trait`] (rust-lang/rust#121679) - [Change equality of higher ranked types to not rely on subtyping] (rust-lang/rust#118247) - [When called, additionally check bounds on normalized function return type] (rust-lang/rust#118882) - [Expand coverage for `arithmetic_overflow` lint] (rust-lang/rust#119432) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Update to LLVM 18](rust-lang/rust#120055) - [Build `rustc` with 1CGU on `x86_64-pc-windows-msvc`] (rust-lang/rust#112267) - [Build `rustc` with 1CGU on `x86_64-apple-darwin`] (rust-lang/rust#112268) - [Introduce `run-make` V2 infrastructure, a `run_make_support` library and port over 2 tests as example] (rust-lang/rust#113026) - [Windows: Implement condvar, mutex and rwlock using futex] (rust-lang/rust#121956) Version 1.77.0 (2024-03-21) ========================== - [Reveal opaque types within the defining body for exhaustiveness checking.] (rust-lang/rust#116821) - [Stabilize C-string literals.] (rust-lang/rust#117472) - [Stabilize THIR unsafeck.] (rust-lang/rust#117673) - [Add lint `static_mut_refs` to warn on references to mutable statics.] (rust-lang/rust#117556) - [Support async recursive calls (as long as they have indirection).] (rust-lang/rust#117703) - [Undeprecate lint `unstable_features` and make use of it in the compiler.] (rust-lang/rust#118639) - [Make inductive cycles in coherence ambiguous always.] (rust-lang/rust#118649) - [Get rid of type-driven traversal in const-eval interning] (rust-lang/rust#119044), only as a [future compatiblity lint] (rust-lang/rust#122204) for now. - [Deny braced macro invocations in let-else.] (rust-lang/rust#119062) Compiler -------- - [Include lint `soft_unstable` in future breakage reports.] (rust-lang/rust#116274) - [Make `i128` and `u128` 16-byte aligned on x86-based targets.] (rust-lang/rust#116672) - [Use `--verbose` in diagnostic output.] (rust-lang/rust#119129) - [Improve spacing between printed tokens.] (rust-lang/rust#120227) - [Merge the `unused_tuple_struct_fields` lint into `dead_code`.] (rust-lang/rust#118297) - [Error on incorrect implied bounds in well-formedness check] (rust-lang/rust#118553), with a temporary exception for Bevy. - [Fix coverage instrumentation/reports for non-ASCII source code.] (rust-lang/rust#119033) - [Fix `fn`/`const` items implied bounds and well-formedness check.] (rust-lang/rust#120019) - [Promote `riscv32{im|imafc}-unknown-none-elf` targets to tier 2.] (rust-lang/rust#118704) - Add several new tier 3 targets: - [`aarch64-unknown-illumos`] (rust-lang/rust#112936) - [`hexagon-unknown-none-elf`] (rust-lang/rust#117601) - [`riscv32imafc-esp-espidf`] (rust-lang/rust#119738) - [`riscv32im-risc0-zkvm-elf`] (rust-lang/rust#117958) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Implement `From<&[T; N]>` for `Cow<[T]>`.] (rust-lang/rust#113489) - [Remove special-case handling of `vec.split_off (0)`.](rust-lang/rust#119917) Stabilized APIs --------------- - [`array::each_ref`] (https://doc.rust-lang.org/stable/std/primitive.array.html#method.each_ref) - [`array::each_mut`] (https://doc.rust-lang.org/stable/std/primitive.array.html#method.each_mut) - [`core::net`] (https://doc.rust-lang.org/stable/core/net/index.html) - [`f32::round_ties_even`] (https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round_ties_even) - [`f64::round_ties_even`] (https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round_ties_even) - [`mem::offset_of!`] (https://doc.rust-lang.org/stable/std/mem/macro.offset_of.html) - [`slice::first_chunk`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.first_chunk) - [`slice::first_chunk_mut`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.first_chunk_mut) - [`slice::split_first_chunk`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_first_chunk) - [`slice::split_first_chunk_mut`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_first_chunk_mut) - [`slice::last_chunk`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.last_chunk) - [`slice::last_chunk_mut`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.last_chunk_mut) - [`slice::split_last_chunk`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_last_chunk) - [`slice::split_last_chunk_mut`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_last_chunk_mut) - [`slice::chunk_by`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.chunk_by) - [`slice::chunk_by_mut`] (https://doc.rust-lang.org/stable/std/primitive.slice.html#method.chunk_by_mut) - [`Bound::map`] (https://doc.rust-lang.org/stable/std/ops/enum.Bound.html#method.map) - [`File::create_new`] (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.create_new) - [`Mutex::clear_poison`] (https://doc.rust-lang.org/stable/std/sync/struct.Mutex.html#method.clear_poison) - [`RwLock::clear_poison`] (https://doc.rust-lang.org/stable/std/sync/struct.RwLock.html#method.clear_poison) Cargo ----- - [Extend the build directive syntax with `cargo::`.] (rust-lang/cargo#12201) - [Stabilize metadata `id` format as `PackageIDSpec`.] (rust-lang/cargo#12914) - [Pull out as `cargo-util-schemas` as a crate.] (rust-lang/cargo#13178) - [Strip all debuginfo when debuginfo is not requested.] (rust-lang/cargo#13257) - [Inherit jobserver from env for all kinds of runners.] (rust-lang/cargo#12776) - [Deprecate rustc plugin support in cargo.] (rust-lang/cargo#13248) Rustdoc ----- - [Allows links in markdown headings.] (rust-lang/rust#117662) - [Search for tuples and unit by type with `()`.] (rust-lang/rust#118194) - [Clean up the source sidebar's hide button.] (rust-lang/rust#119066) - [Prevent JS injection from `localStorage`.] (rust-lang/rust#120250) Misc ---- - [Recommend version-sorting for all sorting in style guide.] (rust-lang/rust#115046) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Add more weirdness to `weird-exprs.rs`.] (rust-lang/rust#119028)
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Fixes #123773
This PR removes the static check that disallowed extern functions
with ellipsis (varargs) as the only parameter since this is now
valid in C23.
This will not break any existing code as mentioned in the proposal
document: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf.
Also, adds a doc comment for
check_decl_cvariadic_pos()andfixes the name of the function (
varadic->variadic).