diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/uninit-empty-types.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/uninit-empty-types.rs')
-rw-r--r-- | src/test/ui/uninit-empty-types.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/uninit-empty-types.rs b/src/test/ui/uninit-empty-types.rs new file mode 100644 index 000000000..b21de882b --- /dev/null +++ b/src/test/ui/uninit-empty-types.rs @@ -0,0 +1,19 @@ +// build-pass +// Test the uninit() construct returning various empty types. + +// pretty-expanded FIXME #23616 + +use std::mem::MaybeUninit; + +struct Foo; + +#[allow(deprecated)] +pub fn main() { + unsafe { + // `Foo` and `[Foo; 2]` are both zero sized and inhabited, so this is safe. + let _x: Foo = MaybeUninit::uninit().assume_init(); + let _x: [Foo; 2] = MaybeUninit::uninit().assume_init(); + let _x: Foo = std::mem::uninitialized(); + let _x: [Foo; 2] = std::mem::uninitialized(); + } +} |