Switch from indexing to zip, and also use `write` on `MaybeUninit`.
Add array_map feature to core/src/lib
Attempt to fix issue of no such feature
Update w/ pickfire's review
This changes a couple of names around, adds another small test of variable size,
and hides the rustdoc #![feature(..)].
Fmt doctest
Add suggestions from lcnr
Add basic test
And also run fmt which is where the other changes are from
Fix mut issues
These only appear when running tests, so resolved by adding mut
Swap order of forget
Add pub and rm guard impl
Add explicit type to guard
Add safety note
Change guard type from T to S
It should never have been T, as it guards over [MaybeUninit<S>; N]
Also add feature to test
This creates the language item for arrays, and adds the map fn which is like map in options or
iterators. It currently allocates an extra array, unfortunately.
Added fixme for transmuting
Fix typo
Add drop guard
The previous `assert_eq` generated quite some code, which is especially
problematic when this call is inlined. This commit also slightly
improves the panic message from:
assertion failed: `(left == right)`
left: `3`,
right: `2`: destination and source slices have different lengths
...to:
source slice length (2) does not match destination slice length (3)
Add Ipv6Addr::to_ipv4_mapped
* add Ipv6Addr::to_ipv4_mapped
* ~~deprecate Ipv4Addr::to_ipv6_compatible & Ipv6Addr::to_ipv4~~ reference: #75150
According to [IETF RFC 4291](https://tools.ietf.org/html/rfc4291#page-10), the "IPv4-Compatible IPv6 address" is deprecated.
> 2.5.5.1. IPv4-Compatible IPv6 Address
>
> The "IPv4-Compatible IPv6 address" was defined to assist in the IPv6
> transition. The format of the "IPv4-Compatible IPv6 address" is as
> follows:
>
> | 80 bits | 16 | 32 bits |
> +--------------------------------------+--------------------------+
> |0000..............................0000|0000| IPv4 address |
> +--------------------------------------+----+---------------------+
>
> Note: The IPv4 address used in the "IPv4-Compatible IPv6 address"
> must be a globally-unique IPv4 unicast address.
>
> The "IPv4-Compatible IPv6 address" is now deprecated because the
> current IPv6 transition mechanisms no longer use these addresses.
> New or updated implementations are not required to support this
> address type.
And the current implementation of `Ipv4Addr::to_ipv6_compatible`is incorrect: it does not check whether the IPv4 address is a globally-unique IPv4 unicast address.
Please let me know if there are any issues with this pull request.
fix wrong word in documentation
Change "two" to "three", since there are three significantly different things printed below that sentence:
---
While these:
```rust
println!("{}, `{name:.*}` has 3 fractional digits", "Hello", 3, name=1234.56);
println!("{}, `{name:.*}` has 3 characters", "Hello", 3, name="1234.56");
println!("{}, `{name:>8.*}` has 3 right-aligned characters", "Hello", 3, name="1234.56");
```
print two significantly different things:
``` rust
Hello, `1234.560` has 3 fractional digits
Hello, `123` has 3 characters
Hello, ` 123` has 3 right-aligned characters
```
---
[`https://doc.rust-lang.org/std/fmt/#precision`](https://doc.rust-lang.org/std/fmt/#precision)
Requested changes to [*mut T|*const T]::set_ptr_value
This is a follow-up to PR #74774 (tracking issue #75091), acting on some change requests made after approval:
- adds `#[must_use]` attribute
- changes type of `val` pointer argument from `()` to `u8`
- adjusts documentation mentioning pointer provenance
Improve `f32` and `f64` primitive documentation
I noticed that the docs for the primitive floats were fairly short. I first only wanted to add the IEEE specification information (compare [the reference](https://doc.rust-lang.org/reference/types/numeric.html)), but then also added some more beginner-friendly docs. Let me know what you think!
Random doc team assign:
r? @rylev
Use intra-doc links in /library/core/src/cmp.rs
Helps with #75080.
@rustbot modify labels: T-doc, A-intra-doc-links, T-rustdoc
Known issues:
* Links from `core` to `std` (#74481):
* [`Vec::sort_by_key`]
Std panicking unsafe block in unsafe fn
Partial fix of #73904.
This encloses `unsafe` operations in `unsafe fn` in `libstd/ffi/panicking.rs`.
I also made a two lines change to `libstd/thread/local.rs` to add the necessary `unsafe` block without breaking everything else.
@rustbot modify labels: F-unsafe-block-in-unsafe-fn
Move to intra-doc links in library/std/src/path.rs
Helps with #75080.
@rustbot modify labels: T-doc, A-intra-doc-links, T-rustdoc
Known issue: The following links are broken (they are inside trait impls, undocumented in this file, inheriting from the original doc):
- [`Hasher`]
- [`Self`] (referencing `../primitive.slice.html`)
- [`Ordering`]
Add back unwinding support for Sony PSP
This PR adds back unwinding support for the Sony PSP. The `mipsel-sony-psp` target works well with unwinding. In [rust-psp], we use the `panic_unwind` crate along with LLVM's libunwind to catch panics, run destructors, and print them to the debug screen without aborting all threads.
[rust-psp]: https://github.com/overdrivenpotato/rust-psp
Rollup of 15 pull requests
Successful merges:
- #74712 (Update E0271 explanation)
- #74842 (adjust remaining targets)
- #75151 (Consistent variable name alloc for raw_vec)
- #75162 (Fix the documentation for move about Fn traits implementations)
- #75248 (Add `as_mut_ptr` to `NonNull<[T]>`)
- #75262 (Show multi extension example for Path in doctests)
- #75266 (Add safety section to `NonNull::as_*` method docs)
- #75284 (Show relative example for Path ancestors)
- #75285 (Separate example for Path strip_prefix)
- #75287 (Show Path extension example change multi extension)
- #75288 (Use assert! for Path exists example to check bool)
- #75289 (Remove ambiguity from PathBuf pop example)
- #75290 (fix `min_const_generics` version)
- #75291 (Clean up E0750)
- #75292 (Clean up E0502)
Failed merges:
r? @ghost
