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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /src/test/ui/issues/issue-46845.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/issues/issue-46845.rs')
-rw-r--r-- | src/test/ui/issues/issue-46845.rs | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/test/ui/issues/issue-46845.rs b/src/test/ui/issues/issue-46845.rs deleted file mode 100644 index fc85b2551..000000000 --- a/src/test/ui/issues/issue-46845.rs +++ /dev/null @@ -1,32 +0,0 @@ -// run-pass -// To work around #46855 -// compile-flags: -Z mir-opt-level=0 -// Regression test for the inhabitedness of unions with uninhabited variants, issue #46845 - -use std::mem; - -#[derive(Copy, Clone)] -enum Never { } - -// A single uninhabited variant shouldn't make the whole union uninhabited. -union Foo { - a: u64, - _b: Never -} - -// If all the variants are uninhabited, however, the union should be uninhabited. -// NOTE(#49298) the union being uninhabited shouldn't change its size. -union Bar { - _a: (Never, u64), - _b: (u64, Never) -} - -fn main() { - assert_eq!(mem::size_of::<Foo>(), 8); - // See the note on `Bar`'s definition for why this isn't `0`. - assert_eq!(mem::size_of::<Bar>(), 8); - - let f = [Foo { a: 42 }, Foo { a: 10 }]; - println!("{}", unsafe { f[0].a }); - assert_eq!(unsafe { f[1].a }, 10); -} |