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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/consts/const-eval/mod-static-with-const-fn.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/consts/const-eval/mod-static-with-const-fn.rs')
-rw-r--r-- | src/test/ui/consts/const-eval/mod-static-with-const-fn.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs new file mode 100644 index 000000000..b6b74e67d --- /dev/null +++ b/src/test/ui/consts/const-eval/mod-static-with-const-fn.rs @@ -0,0 +1,22 @@ +// New test for #53818: modifying static memory at compile-time is not allowed. +// The test should never compile successfully + +#![feature(const_mut_refs)] + +use std::cell::UnsafeCell; + +struct Foo(UnsafeCell<u32>); + +unsafe impl Send for Foo {} +unsafe impl Sync for Foo {} + +static FOO: Foo = Foo(UnsafeCell::new(42)); + +static BAR: () = unsafe { + *FOO.0.get() = 5; + //~^ ERROR could not evaluate static initializer +}; + +fn main() { + println!("{}", unsafe { *FOO.0.get() }); +} |