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Guarantee the layout of some unions having a single non-zero-sized field #161

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Merged
merged 17 commits into from
Aug 29, 2019
Merged

Guarantee the layout of some unions having a single non-zero-sized field #161

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280fe42
Guarantee the default layout of unions with a single field
gnzlbg Jul 8, 2019
fb9ad78
Use picture to explain union layout
gnzlbg Aug 15, 2019
5b3aa2f
Use 1-ZST terminology
gnzlbg Aug 15, 2019
7bb1743
Reword
gnzlbg Aug 15, 2019
58c5694
Reword more
gnzlbg Aug 15, 2019
36bc3b6
Use <---> for padding in pictures
gnzlbg Aug 27, 2019
6502c2d
Summarzie text
gnzlbg Aug 27, 2019
080d63e
Clarify size of union
gnzlbg Aug 27, 2019
83e9f3d
Hyperlink all the things
gnzlbg Aug 27, 2019
ccce616
Ralf feedback
gnzlbg Aug 28, 2019
bf307b6
Remove redundant statement
gnzlbg Aug 28, 2019
55ab416
Remove empty line
gnzlbg Aug 28, 2019
88c91f0
Update reference/src/layout/unions.md
gnzlbg Aug 28, 2019
4d777f1
Update reference/src/layout/unions.md
gnzlbg Aug 28, 2019
f18d4a9
Clarify dofs, fix link
gnzlbg Aug 28, 2019
a649424
Update reference/src/layout/unions.md
gnzlbg Aug 28, 2019
6b544f3
Update reference/src/layout/unions.md
gnzlbg Aug 29, 2019
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Update reference/src/layout/unions.md 
Co-Authored-By: Ralf Jung <[email protected]>
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@gnzlbg @RalfJung
gnzlbg and RalfJung authored Aug 28, 2019
commit 88c91f09ff2a08a0a3abd154ec13511ec21e3347
2 changes: 1 addition & 1 deletion reference/src/layout/unions.md
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Expand Up @@ -105,7 +105,7 @@ assert_eq!(align_of::<Zst2>(), 16);
the layout of `U1` is **unspecified** because:

* `Zst2` is not a [1-ZST], and
* `SomeOtherStruct` has an unspecified layout and could contain padding bits.
* `SomeOtherStruct` has an unspecified layout and could contain padding bytes.

### C-compatible layout ("repr C")

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