Clarify language around ptrs in slice::raw #129892
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Makes sense, thanks! @bors r+ rollup |
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…lfJung Clarify language around ptrs in slice::raw More specifically we explicitly mention that the pointer should be non-null as a top level requirement. Nullptrs are always valid for zero sized operations, so just validity (and alignment) does not guarantee non-nullness as implied in the existing docs. We also explicitly call out ZSTs as an additional example where perhaps unintuitively alignment and non-nullness still have to hold. Finally we change `data` in the range functions to `start`, which seems like a typo to me. Touches docs for rust-lang#89792 r? RalfJung
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…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#129152 (custom/external clippy support for bootstrapping) - rust-lang#129529 (Add test to build crates used by r-a on stable) - rust-lang#129829 (Make decoding non-optional `LazyArray` panic if not set) - rust-lang#129860 (update `object` dependency to remove duplicate `wasmparser`) - rust-lang#129875 (chore: Fix typos in 'compiler' (batch 1)) - rust-lang#129877 (chore: Fix typos in 'compiler' (batch 2)) - rust-lang#129878 (chore: Fix typos in 'compiler' (batch 3)) - rust-lang#129891 (Do not request sanitizers for naked functions) - rust-lang#129892 (Clarify language around ptrs in slice::raw) Failed merges: - rust-lang#129777 (Add `unreachable_pub`, round 4) - rust-lang#129868 (Remove kobzol vacation status) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 12 pull requests Successful merges: - rust-lang#129748 (Box validity: update for new zero-sized rules) - rust-lang#129829 (Make decoding non-optional `LazyArray` panic if not set) - rust-lang#129856 (compiler_fence documentation: emphasize synchronization, not reordering) - rust-lang#129868 (Remove kobzol vacation status) - rust-lang#129875 (chore: Fix typos in 'compiler' (batch 1)) - rust-lang#129877 (chore: Fix typos in 'compiler' (batch 2)) - rust-lang#129878 (chore: Fix typos in 'compiler' (batch 3)) - rust-lang#129890 (Remove stray word in a comment) - rust-lang#129892 (Clarify language around ptrs in slice::raw) - rust-lang#129905 (mailmap: add new email for davidtwco) - rust-lang#129906 (mailmapper?) - rust-lang#129907 (Fix compile error in solid's remove_dir_all) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#129892 - oskgo:clarify-slice-from-raw, r=RalfJung Clarify language around ptrs in slice::raw More specifically we explicitly mention that the pointer should be non-null as a top level requirement. Nullptrs are always valid for zero sized operations, so just validity (and alignment) does not guarantee non-nullness as implied in the existing docs. We also explicitly call out ZSTs as an additional example where perhaps unintuitively alignment and non-nullness still have to hold. Finally we change `data` in the range functions to `start`, which seems like a typo to me. Touches docs for rust-lang#89792 r? RalfJung
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More specifically we explicitly mention that the pointer should be non-null as a top level requirement. Nullptrs are always valid for zero sized operations, so just validity (and alignment) does not guarantee non-nullness as implied in the existing docs.
We also explicitly call out ZSTs as an additional example where perhaps unintuitively alignment and non-nullness still have to hold.
Finally we change
datain the range functions tostart, which seems like a typo to me.Touches docs for #89792
r? RalfJung