Clarify the conditions on the aliasing section #272
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ehuss
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Jun 18, 2021
src/aliasing.md
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| // x > 10 implies x > 5, so remove the first if condition, | ||
| // set it to `2`, and exit immediately |
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I'm still a little confused by this comment. What is the "first if condition"? The way I read it, the first if condition is *input > 10, which is still being checked here. Can you clarify?
Also, this is using a new variable named x that isn't defined anywhere. It is somewhat obvious to me what it means, but it seems a little imprecise.
Perhaps something like this?
If the input is greater than 10, the previous code would set the output to 1 and then double it, resulting in an output of 2 (because
>10implies>5). Here, we avoid the double assignment and just set it directly to 2.
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Jun 22, 2021
Update books ## nomicon 10 commits in 55de6fa3c1f331774da19472c9ee57d2ae9eb039..b9ca313e687c991223e23e5520529815dc281205 2021-05-12 00:31:01 +0900 to 2021-06-22 12:02:20 -0400 - The #[repr(C)] attribute on the callback example is not necessary, since the type is not used in C. - Reorganize some chapters (rust-lang/nomicon#282) - Mention "extern types" on the opaque structs section (rust-lang/nomicon#273) - Clarify the conditions on the aliasing section (rust-lang/nomicon#272) - Upgrade to edition 2018 (rust-lang/nomicon#280) - Update some wording making reference to issues/RFCs (rust-lang/nomicon#271) - Some improvements on the "subtyping" chapter (rust-lang/nomicon#278) - Clarify casting between the same size fixed ints (rust-lang/nomicon#277) - Add a link to show why unused lifetimes on structs are forbidden (rust-lang/nomicon#276) - Fix small typo in the Drop Check chapter (rust-lang/nomicon#275) ## reference 8 commits in 8f598e2af6c25b4a7ee88ef6a8196d9b8ea50ca8..d9699fa8f3186440fdaadd703d63d8d42322c176 2021-06-01 19:00:46 +0100 to 2021-06-21 12:23:10 -0700 - Make explicit reference to scrutinee expression in grammar snippet (rust-lang/reference#1044) - Document sub-namespaces. (rust-lang/reference#1043) - Default all examples to 2018 edition. (rust-lang/reference#1041) - Minor update to macros. (rust-lang/reference#1048) - (rust-lang/reference#1049) - Add a note why the same size int casting is a no-op (rust-lang/reference#1046) - Add notes on `#[target_feature]` for wasm (rust-lang/reference#1047) - Make statement about variable visibility more precise (rust-lang/reference#1045) ## rustc-dev-guide 8 commits in c8da5bfd1c7c71d90ef1646f5e0a9f6609d5c78a..fe34beddb41dea5cb891032512a8d5b842b99696 2021-06-04 09:08:56 +0200 to 2021-06-21 21:50:12 +0200 - Update "Inference variables" section (rust-lang/rustc-dev-guide#1145) - Document how to run unit tests (rust-lang/rustc-dev-guide#1141) - We stopped using allow_internal_unstable a while ago (rust-lang/rustc-dev-guide#1142) - Change the feature used as an example of stabilizing lib features (rust-lang/rustc-dev-guide#1143) - We use HIR to do type inference, trait solving and type checking (rust-lang/rustc-dev-guide#1139) - Add suggested settings note for coc (rust-lang/rustc-dev-guide#1144) - move 7/8 to prose - Add a section on keeping things up to date in the git section ## edition-guide 2 commits in 302a115e8f71876dfc884aebb0ca5ccb02b8a962..c74b2a0d6bf55774cf15d69f05dfe05408b8f81a 2021-05-21 10:46:11 -0400 to 2021-06-14 10:48:27 -0700 - Fix lies. (rust-lang/edition-guide#244) - Add short summaries to all 2021 edition changes. (rust-lang/edition-guide#243) ## embedded-book 1 commits in 7349d173fa28a0bb834cf0264a05286620ef0923..cbec77fbd8eea0c13e390dd9eded1ae200e811d1 2021-05-25 13:59:05 +0000 to 2021-06-10 06:26:32 +0000 - Fix punctuation in c-with-rust.md (rust-embedded/book#294)
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Fixes #148