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Constify Eq, Ord, PartialOrd
Adds `#[const_trait]` and impls for `Eq`, `Ord`, `PartialOrd`. Impl for some other traits (e.g., slices and arrays) are blocked mainly on const closures (https://github.com/rust-lang/rust/issues/106003).
For TypeId Ord we need const pointer comparison (https://github.com/rust-lang/rust/issues/53020)
Tracking issue https://github.com/rust-lang/rust/issues/143800
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This reverts commit 7ce620dd7c6fc3371290b40a1ea28146f0d37031.
The const-hacks introduces bugs, and they make the code harder to maintain.
Let's wait until we can constify these functions without changing their implementation.
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Rollup of 15 pull requests
Successful merges:
- rust-lang/rust#144549 (match clang's `va_arg` assembly on arm targets)
- rust-lang/rust#145895 (thread parking: fix docs and examples)
- rust-lang/rust#146308 (support integer literals in `${concat()}`)
- rust-lang/rust#146323 (check before test for hardware capabilites in bits 32~63 of usize)
- rust-lang/rust#146332 (tidy: make behavior of extra-checks more uniform)
- rust-lang/rust#146374 (Update `browser-ui-test` version to `0.22.2`)
- rust-lang/rust#146413 (Improve suggestion in case a bare URL is surrounded by brackets)
- rust-lang/rust#146426 (Bump miow to 0.60.1)
- rust-lang/rust#146432 (Implement `Socket::take_error` for Hermit)
- rust-lang/rust#146433 (rwlock tests: fix miri macos test regression)
- rust-lang/rust#146435 (Change the default value of `gcc.download-ci-gcc` to `true`)
- rust-lang/rust#146439 (fix cfg for poison test macro)
- rust-lang/rust#146448 ([rustdoc] Correctly handle literal search on paths)
- rust-lang/rust#146449 (Fix `libgccjit` symlink when we build GCC locally)
- rust-lang/rust#146455 (test: remove an outdated normalization for rustc versions)
r? `@ghost`
`@rustbot` modify labels: rollup
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fix cfg for poison test macro
Fixes test regression in https://github.com/rust-lang/rust/pull/144648
Continuation of https://github.com/rust-lang/rust/pull/146433
I think this is right? Not really sure how to test this myself to be honest.
r? ```@RalfJung```
I'll also leave the improvement to the test macro for a separate PR (described [here](https://github.com/rust-lang/rust/pull/146433#issuecomment-3280210451)) since I've never done something like that before. Though since this fixes all of the tests, it might not be necessary since anyone in the future will see the `cfg()` and not `cfg_attr()`?
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rwlock tests: fix miri macos test regression
https://github.com/rust-lang/rust/pull/144648 broke the attributes that ignore the tests on Miri; this patch should fix that.
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Implement `Socket::take_error` for Hermit
This PR fixes an unused-imports compilation error introduced in 845311a065a5638c516ed96c73b09862b176b329 and implements `Socket::take_error` for Hermit.
Hermit's `Socket::take_error` implementation works exactly like the one for Unix.
r? joboet
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check before test for hardware capabilites in bits 32~63 of usize
This commit tries to fix https://github.com/rust-lang/rust/issues/146230.
`std::arch::is_aarch64_feature_detected` panics on aarch64 ILP32 targets.
After some digging, the real problem is
https://github.com/rust-lang/rust/blob/91edc3ebccc4daa46c20a93f4709862376da1fdd/library/std_detect/src/detect/os/linux/aarch64.rs#L210-L241
checks bits 32~63 of usize unconditionally on normal aarch64 LP64 target and aarch64 ILP32 target.
Here I propose to move these to a block guarded by `#[cfg(target_pointer_width="64")]`.
See rust-lang/rust#146230 for more detailed analysis.
r? ```@Amanieu```
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thread parking: fix docs and examples
Fixes https://github.com/rust-lang/rust/issues/145816
r? ```@joboet```
Cc ```@m-ou-se``` ```@Amanieu```
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std: optimize `dlsym!` macro and add a test for it
The `dlsym!` macro always ensures that the name string is nul-terminated, so there is no need to perform the check at runtime. Also, acquire loads are generally faster than a load and a barrier, so use them. This is only false in the case where the symbol is missing, but that shouldn't matter too much.
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std: move `thread` into `sys`
Part of https://github.com/rust-lang/rust/issues/117276.
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RISC-V: "Lower" requirements of `aes64im`
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Co-authored-by: Ralf Jung <post@ralfj.de>
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Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
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This fixes
```
error: unused import: `str`
--> library/std/src/sys/pal/hermit/os.rs:6:22
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6 | use crate::{fmt, io, str};
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= note: `-D unused-imports` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(unused_imports)]`
```
This was caused by 845311a065a5638c516ed96c73b09862b176b329.
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This instruction is incorrectly categorized as the same one as
`aes64ks1i` and `aes64ks2` (that should require `zkne || zknd` but
currently require `zkne && zknd`) but `aes64im` only requires
the Zknd extension.
This commit fixes the category of this intrinsic (lowering the
requirements from the Rust perspective but it does not actually lower
it from the RISC-V perspective).
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r=workingjubilee
Improve `core::array` coverage
This PR improves the `core::array` coverage by adding new tests to `coretests`
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Improve `core::ops` coverage
This PR improves the `core::ops` coverage by adding new tests to `coretests`
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r=tgross35
Unify and deduplicate bits conv float tests
cc rust-lang/rust#141726
This is a proposal to unify and deduplicate the bits conv tests for f16, f32, f64 and f128
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Fix `compare_against_sw_vers` test
The `saturating_sub` doesn't actually perform its intended since the version numbers are signed integers (which I changed in a later revision of https://github.com/rust-lang/rust/pull/138944).
Fixes the issue described in https://github.com/rust-lang/rust/pull/138944#issuecomment-3270662876.
r? tgross35
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r=workingjubilee
core::ptr: deduplicate docs for as_ref, addr, and as_uninit_ref
also add INFO.md file explaining the purpose of the ptr/docs dir, and give some pointers (heh) to future maintainers.
follow up to rust-lang/rust#142101
part of rust-lang/rust#139190
r? `@workingjubilee`
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Co-authored-by: Jubilee <workingjubilee@gmail.com>
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Make Barrier RefUnwindSafe again
This commit manually implements `RefUnwindSafe` for `std::sync::Barrier` to fix rust-lang/rust#146087. This is a fix for a regression indroduced by https://github.com/rust-lang/rust/commit/e95db591a4550e28ad92660b753ad85b89271882
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std: make address resolution weirdness local to SGX
Currently, the implementations of `TcpStream::connect` and its cousins take an `io::Result<&SocketAddr>` as argument, which is very weird, as most of them then `?`-try the result immediately to access the actual address. This weirdness is however necessitated by a peculiarity of the SGX networking implementation:
SGX doesn't support DNS resolution but rather accepts hostnames in the same place as socket addresses. So, to make e.g.
```rust
TcpStream::connect("example.com:80")`
```
work, the DNS lookup returns a special error (`NonIpSockAddr`) instead, which contains the hostname being looked up. When `.to_socket_addrs()` fails, the `each_addr` function used to select an address will pass the error to the inner `TcpStream::connect` implementation, which in SGX's case will inspect the error and try recover the hostname from it. If
that succeeds, it continues with the found hostname.
This is pretty obviously a terrible hack and leads to buggy code (for instance, when users use the result of `.to_socket_addrs()` in their own `ToSocketAddrs` implementation to select from a list of possible URLs, the only URL used will be that of the last item tried). Still, without changes to the SGX usercall ABI, it cannot be avoided.
Therefore, this PR aims to minimise the impact of that weirdness and remove it from all non-SGX platforms. The inner `TcpStream::connect`, et al. functions now receive the `ToSocketAddrs` type directly and call `each_addr` (which is moved to `sys::net::connection`) themselves. On SGX, the implementation uses a special `each_addr` which contains the whole pass-hostname-through-error hack.
As well as making the code cleaner, this also opens up the possibility of reusing newly created sockets even if a connection request fails – but I've left that for another PR.
CC `@raoulstrackx`
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also add INFO.md file explaining the purpouse of the ptr/docs dir.
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`dlsym` doesn't work for finding libc symbols on platforms like linux-musl, so the test will fail.
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inclusive `Range`s: change `end` to `last`
Tracking issue: rust-lang/rust#125687
ACP: rust-lang/libs-team#511
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add approx_delta to all gamma tests
f32::gamma tests are less precise in CI, so we increase the tolerance for these tests. See [#miri > Miri test-libstd Failure (2025-09) @ 💬](https://rust-lang.zulipchat.com/#narrow/channel/269128-miri/topic/Miri.20test-libstd.20Failure.20.282025-09.29/near/538138742)
r? `@RalfJung`
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Update getopts to remove unicode-width dependency
Pulls in https://github.com/rust-lang/getopts/pull/133. This saves 1.5MB on the vendored size of the standard library.
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This commit manually implements `RefUnwindSafe` for
`std::sync::Barrier` to fix 146087. This is a fix for a regression
indroduced by https://github.com/rust-lang/rust/commit/e95db591a4550e28ad92660b753ad85b89271882
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