Matthias Krüger 81b6263dd0 Rollup merge of #118598 - Nadrieril:remove_precise_pointer_size_matching, r=davidtwco ... Remove the `precise_pointer_size_matching` feature gate `usize` and `isize` are special for pattern matching because their range might depend on the platform. To make code portable across platforms, the following is never considered exhaustive: ```rust let x: usize = ...; match x { 0..=18446744073709551615 => {} } ``` Because of how rust handles constants, this also unfortunately counts `0..=usize::MAX` as non-exhaustive. The [`precise_pointer_size_matching`](https://github.com/rust-lang/rust/issues/56354) feature gate was introduced both for this convenience and for the possibility that the lang team could decide to allow the above. Since then, [half-open range patterns](https://github.com/rust-lang/rust/issues/67264) have been implemented, and since #116692 they correctly support `usize`/`isize`: ```rust match 0usize { // exhaustive! 0..5 => {} 5.. => {} } ``` I believe this subsumes all the use cases of the feature gate. Moreover no attempt has been made to stabilize it in the 5 years of its existence. I therefore propose we retire this feature gate. Closes https://github.com/rust-lang/rust/issues/56354		2023-12-05 16:08:35 +01:00
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src	Rollup merge of #118598 - Nadrieril:remove_precise_pointer_size_matching, r=davidtwco	2023-12-05 16:08:35 +01:00
Cargo.toml	Clean up rustc_*/Cargo.toml.	2023-10-30 08:46:02 +11:00