Thalia Archibald
638b226a6a
Remove #[cfg(not(test))] gates in core
...
These gates are unnecessary now that unit tests for `core` are in a
separate package, `coretests`, instead of in the same files as the
source code. They previously prevented the two `core` versions from
conflicting with each other.
2025-03-06 13:21:59 -08:00
Trevor Gross
19f6c17df4
Stabilize const_option
...
This makes the following API stable in const contexts:
impl<T> Option<T> {
pub const fn as_mut(&mut self) -> Option<&mut T>;
pub const fn expect(self, msg: &str) -> T;
pub const fn unwrap(self) -> T;
pub const unsafe fn unwrap_unchecked(self) -> T;
pub const fn take(&mut self) -> Option<T>;
pub const fn replace(&mut self, value: T) -> Option<T>;
}
impl<T> Option<&T> {
pub const fn copied(self) -> Option<T>
where T: Copy;
}
impl<T> Option<&mut T> {
pub const fn copied(self) -> Option<T>
where T: Copy;
}
impl<T, E> Option<Result<T, E>> {
pub const fn transpose(self) -> Result<Option<T>, E>
}
impl<T> Option<Option<T>> {
pub const fn flatten(self) -> Option<T>;
}
The following functions make use of the unstable
`const_precise_live_drops` feature:
- `expect`
- `unwrap`
- `unwrap_unchecked`
- `transpose`
- `flatten`
Fixes: <https://github.com/rust-lang/rust/issues/67441 >
2024-10-12 17:07:13 -04:00
John Arundel
a19472a93e
Fix doc nits
...
Many tiny changes to stdlib doc comments to make them consistent (for example
"Returns foo", rather than "Return foo", per RFC1574), adding missing periods, paragraph
breaks, backticks for monospace style, and other minor nits.
https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#appendix-a-full-conventions-text
2024-07-26 13:26:33 +01:00
Scott McMurray
1cfcf71e04
Add an example that depends on is_ascii in a const
2023-05-04 14:46:17 -07:00
Scott McMurray
370d31b93d
Constify [u8]::is_ascii (unstably)
...
UTF-8 checking in `const fn`-stabilized back in 1.63, but apparently somehow ASCII checking was never const-ified, despite being simpler.
2023-05-04 14:30:20 -07:00
Scott McMurray
8c781b0906
Add the basic ascii::Char type
2023-05-03 22:09:33 -07:00
