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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 /tests/ui/unsafe/ranged_ints2_const.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 'tests/ui/unsafe/ranged_ints2_const.rs')
-rw-r--r-- | tests/ui/unsafe/ranged_ints2_const.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/ui/unsafe/ranged_ints2_const.rs b/tests/ui/unsafe/ranged_ints2_const.rs new file mode 100644 index 000000000..56f5407bb --- /dev/null +++ b/tests/ui/unsafe/ranged_ints2_const.rs @@ -0,0 +1,29 @@ +// revisions: mirunsafeck thirunsafeck +// [thirunsafeck]compile-flags: -Z thir-unsafeck + +#![feature(rustc_attrs)] + +#[rustc_layout_scalar_valid_range_start(1)] +#[repr(transparent)] +pub(crate) struct NonZero<T>(pub(crate) T); +fn main() { +} + +const fn foo() -> NonZero<u32> { + let mut x = unsafe { NonZero(1) }; + let y = &mut x.0; //~ ERROR mutable references + //~^ ERROR mutation of layout constrained field is unsafe + unsafe { NonZero(1) } +} + +const fn bar() -> NonZero<u32> { + let mut x = unsafe { NonZero(1) }; + let y = unsafe { &mut x.0 }; //~ ERROR mutable references + unsafe { NonZero(1) } +} + +const fn boo() -> NonZero<u32> { + let mut x = unsafe { NonZero(1) }; + unsafe { let y = &mut x.0; } //~ ERROR mutable references + unsafe { NonZero(1) } +} |