Guillaume Gomez 30550c048d

Rollup merge of #137268 - bjoernager:c-string-eq-c-str, r=Amanieu ...

Allow comparisons between `CStr`, `CString`, and `Cow<CStr>`.

Closes: #137265

This PR adds the trait implementations proposed in the [ACP](https://github.com/rust-lang/libs-team/issues/517/) under the `c_string_eq_c_str` feature gate:

```rust
// core::ffi

impl PartialEq<&Self> for CStr;

impl PartialEq<CString> for CStr;

impl PartialEq<Cow<'_, Self>> for CStr;

// alloc::ffi

impl PartialEq<CStr> for CString;

impl PartialEq<&CStr> for CString;

impl PartialEq<Cow<'_, CStr>> for CString;

// alloc::borrow

impl PartialEq<CStr> for Cow<'_, CStr>;

impl PartialEq<&CStr> for Cow<'_, CStr>;

impl PartialEq<CString> for Cow<'_, CStr>;
```

As I understand it, stable traits cannot be unstably implemented for stable types, and we would thereby be forced to skip the FCP and directly stabilise these implementations (as is done in this PR).

(`@joshtriplett` mentioned that Crater may have to be run).

2025-06-24 15:39:37 +02:00

..

src

Rollup merge of #137268 - bjoernager:c-string-eq-c-str, r=Amanieu

2025-06-24 15:39:37 +02:00

Cargo.toml

Use the in-tree compiler-builtins

2025-06-08 02:36:58 +00:00