type-layout: rewrite #[repr(C)] struct layout algorithm#2243
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This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
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Make the code actual compile by defining types, not using a variable named `struct`, adding `mut` where needed, etc. Properly handle the `max()` alignment call returning `Option<usize>` rather than `usize` by using 1 for the alignment if there are no fields. Add comments with the parts of the algorithm that are represented by the statements. Also include a runnable example hidden by default.
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Thanks @DanielEScherzer. |
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Make the code actual compile by defining types, not using a variable named
struct, addingmutwhere needed, etc.Properly handle the
max()alignment call returningOption<usize>rather thanusizeby using 1 for the alignment if there are no fields.Add comments with the parts of the algorithm that are represented by the statements.
Also include a runnable example hidden by default.