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Fix in std::String docs
This PR removes the word “else” from the sentence ('something else similar') in the String documentation to improve clarity.
Fixes rust-lang/rust#143579.
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Implement `int_format_into` feature
I took over rust-lang/rust#138338 with `@madhav-madhusoodanan's` approval.
Since https://github.com/rust-lang/rust/pull/136264, a lot of changes happened so I made use of them to reduce the number of changes.
ACP approval: https://github.com/rust-lang/libs-team/issues/546#issuecomment-2707244569
## Associated Issue
- https://github.com/rust-lang/rust/issues/138215
r? `@hanna-kruppe`
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intrinsics
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Originally, we used an array of `riscv_hwprobe` directly and indexed
using raw numbers, making correspondence between the index and the query
key less obvious.
We also frequently used `out[idx].key != -1` to test whether the key is
supported by the `riscv_hwprobe` system call (on the Linux kernel
version we are testing) but we'd better to integrate with an operation
to retrieve the value.
This commit improves the ergonomics of feature querying by:
1. Utilizing macros to
a. enable indexing by identifier names and
b. encapsulate accesses to the `riscv_hwprobe` array to query and
2. New method `riscv_hwprobe::get()` returning `Option<u64>`,
integrating availability checking and value retrieval.
It also removes `has_ima` for now because it's redundant if we only need
to test for single base behavior.
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Full list of `impl const Default` types:
- ()
- bool
- char
- Cell
- std::ascii::Char
- usize
- u8
- u16
- u32
- u64
- u128
- i8
- i16
- i32
- i64
- i128
- f16
- f32
- f64
- f128
- std::marker::PhantomData<T>
- Option<T>
- std::iter::Empty<T>
- std::ptr::Alignment
- &[T]
- &mut [T]
- &str
- &mut str
- String
- Vec<T>
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This updates the rust-version file to 1b61d43bdbf875183b1f436302d62ff93f9a6bba.
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- Update ui.md
- Update type-alias-impl-trait.md
- Update README.md
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These were left as `CURRENT_RUSTC_VERSION` in the submodule.
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awhile -> a while where appropriate
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std: fix typo in `std::path`
I noticed that most of the document used `'` instead of `’`, so I adjusted it.
r? `@ibraheemdev`
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doc(std): clarify `NonZero<T>` usage limitation in doc comment
Closes rust-lang/rust#142966
This PR clarifies `NonZero<T>` usage limitation in doc comment and fixes a typo.
r? libs
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#143206 (Align attr fixes)
- rust-lang/rust#143236 (Stabilize `mixed_integer_ops_unsigned_sub`)
- rust-lang/rust#143344 (Port `#[path]` to the new attribute parsing infrastructure )
- rust-lang/rust#143359 (Link to 2024 edition page for `!` fallback changes)
- rust-lang/rust#143456 (mbe: Change `unused_macro_rules` to a `DenseBitSet`)
- rust-lang/rust#143529 (Renamed retain_mut to retain on LinkedList as mentioned in the ACP)
- rust-lang/rust#143535 (Remove duplicate word)
- rust-lang/rust#143544 (compiler: rename BareFn to FnPtr)
- rust-lang/rust#143552 (lib: more eagerly return `self.len()` from `ceil_char_boundary`)
r? `@ghost`
`@rustbot` modify labels: rollup
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lib: more eagerly return `self.len()` from `ceil_char_boundary`
There is no reason to go through the complicated branch as it would
always return `self.len()` in this case. Also helps debug code somewhat
and I guess might make optimizations easier (although I haven't really a
sample to demonstrate this.)
ref. https://github.com/rust-lang/rust/issues/93743
Suggested by `@chrisduerr`
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Renamed retain_mut to retain on LinkedList as mentioned in the ACP
This is for proposal: https://github.com/rust-lang/libs-team/issues/250
The original check-in (https://github.com/rust-lang/rust/pull/114136) contained both methods **retain** and **retain_mut**, which does not conform to https://github.com/rust-lang/libs-team/issues/250#issuecomment-1766822671.
I updated the retain documentation to specify **&mut e**, removed the **retain** method and renamed **retain_mut** to **retain** to conform to the request.
The pull request doesn't really contain much that is new, just removes the unwanted method to meet the requirements.
I've run the tests "library/alloc" on the code and no issues.
Hopefully I'm not stepping on the original author's toes. I just ran across a need for the method and wondered why it was unstable.
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Link to 2024 edition page for `!` fallback changes
Closes rust-lang/rust#143207
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Stabilize `mixed_integer_ops_unsigned_sub`
Closes rust-lang/rust#126043.
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There is no reason to go through the complicated branch as it would
always return `self.len()` in this case. Also helps debug code somewhat
and I guess might make optimizations easier (although I haven't really a
sample to demonstrate this.)
ref. #93743
Suggested by @chrisduerr
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Specialize sleep_until implementation for unix (except mac)
related tracking issue: https://github.com/rust-lang/rust/issues/113752
Supersedes https://github.com/rust-lang/rust/pull/118480 for the reasons see: https://github.com/rust-lang/rust/issues/113752#issuecomment-2902594469
Replaces the generic catch all implementation with target_os specific ones for: linux/netbsd/freebsd/android/solaris/illumos etc. Other platforms like wasi, macos/ios/tvos/watchos and windows will follow in later separate PR's (once this is merged).
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The clock_nanosleep support is there to allow code using `sleep_until`
to run under Miri. Therefore the implementation is minimal.
- Only the clocks REALTIME and MONOTONIC are supported. The first is supported simply
because it was trivial to add not because it was needed for sleep_until.
- The only supported flag combinations are no flags or TIMER_ABSTIME only.
If an unsupported flag combination or clock is passed in this throws
unsupported.
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Using clock nanosleep leads to more accurate sleep times on platforms
where it is supported.
To enable using clock_nanosleep this makes `sleep_until` platform
specific. That unfortunatly requires identical placeholder
implementations for the other platforms (windows/mac/wasm etc).
we will land platform specific implementations for those later. See the
`sleep_until` tracking issue.
This requires an accessors for the Instant type. As that accessor is only
used on the platforms that have clock_nanosleep it is marked as allow_unused.
32bit time_t targets do not use clock_nanosleep atm, they instead rely
on the same placeholder as the other platforms. We could make them
use clock_nanosleep too in the future using `__clock_nanosleep_time64`.
__clock_nanosleep_time64 is documented at:
https://www.gnu.org/software/libc/manual/html_node/64_002dbit-time-symbol-handling.html
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use `is_multiple_of` and `div_ceil`
In tricky logic, these functions are much more informative than the manual implementations. They also catch subtle bugs:
- the manual `is_multiple_of` often does not handle division by zero
- manual `div_ceil` often does not consider overflow
The transformation is free for `is_multiple_of` if the divisor is compile-time known to be non-zero. For `div_ceil` there is a small cost to considering overflow. Here is some assembly https://godbolt.org/z/5zP8KaE1d.
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std: sys: net: uefi: tcp4: Implement read
- A blocking implementation of tcp4 read.
- Basically a copy of [write](https://github.com/rust-lang/rust/pull/141532)
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move `va_copy`, `va_arg` and `va_end` to `core::intrinsics`
some questions:
- should these functions be `pub`?
- is a separate module justified?
r? `@RalfJung`
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Update poison.rs to fix the typo (sys->sync)
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Add `const Rem`
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A blocking implementation of tcp4 read.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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