clarify pointer add/sub function safety concerns#55060
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bors merged 2 commits intorust-lang:masterfrom Oct 15, 2018
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clarify pointer add/sub function safety concerns#55060bors merged 2 commits intorust-lang:masterfrom
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The emphasis here feels unnecessary; it only makes sense in the context of a patch, not in the context of the resulting changed text.
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The emphasis was copied from identical sentences on the offset functions. Shall I remove it there, as well?
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Removed the emphases in doc comments on offset() in a separate commit.
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Ah, I missed that!
It's not that important, but thanks for updating those for consistency as well,
src/libcore/ptr.rs
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Ralf Jung made the same changes to the offset functions' documentation in commit fb08915. As add/sub just call offset, the same limitation applies here, as well. Removed emphasis on review request by @joshtriplett
During review of the previous commit, @joshtriplett noticed that the emphasis on 'the same' is unnecessary. For consistency, remove it on the offset() functions, as well.
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clarify pointer add/sub function safety concerns Ralf Jung made the same changes to the offset functions' documentation in commit fb08915. As add/sub just call offset, the same limitation applies here, as well. I did not copy the whole explanation ("In particular, the resulting pointer may *not* be used to access a different allocated object [...]") because I'd consider that as being too repetitive. The documentation of add/sub already refers to the offset function, so people interested in the details can look it up, there. But changing 'an object' to 'the same object' is a small change which improves clarity a lot.
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Rollup of 11 pull requests Successful merges: - #54820 (Closes #54538: `unused_patterns` lint) - #54963 (Cleanup rustc/session) - #54991 (add test for #23189) - #55025 (Add missing lifetime fragment specifier to error message.) - #55047 (doc: make core::fmt::Error example more simple) - #55048 (Don't collect to vectors where unnecessary) - #55060 (clarify pointer add/sub function safety concerns) - #55062 (Make EvalContext::step public again) - #55066 (Fix incorrect link in println! documentation) - #55081 (Deduplicate tests) - #55088 (Update rustc documentation link) Failed merges: r? @ghost
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Ralf Jung made the same changes to the offset functions' documentation
in commit fb08915. As add/sub just call offset, the same limitation
applies here, as well.
I did not copy the whole explanation ("In particular, the resulting pointer may not be used to access a different allocated object [...]") because I'd consider that as being too repetitive. The documentation of add/sub already refers to the offset function, so people interested in the details can look it up, there.
But changing 'an object' to 'the same object' is a small change which improves clarity a lot.