Conversation
Collaborator
Author
|
This probably could be implemented directly in terms of
|
joshlf
requested changes
Oct 31, 2023
| #[macro_export] | ||
| macro_rules! align_of { | ||
| ($t:ty) => {{ | ||
| #[repr(C)] |
Member
There was a problem hiding this comment.
Can you add a safety comment here that proves that this macro computes the correct value?
src/macro_util.rs
Outdated
| }}; | ||
| } | ||
|
|
||
| /// Computes alignment of `$ty`. |
Member
There was a problem hiding this comment.
Maybe also note that $ty doesn't need to be Sized?
35 tasks
The `align_of!` macro uses `trailing_field_offset!` to compute the alignment of DSTs with minimum alignments up to 65536. By contrast, `core::mem::align_of` does not support DSTs. Makes progress on #29.
joshlf
approved these changes
Oct 31, 2023
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The
align_of!macro usestrailing_field_offset!to compute the alignment of DSTs with minimum alignments up to 65536. By contrast,core::mem::align_ofdoes not support DSTs.We can use this for supplying the alignment argument required by
DstLayout::for_dst(introduced by #541).