diff options
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() }); +} |