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use std::ptr::addr_of;
static mut FOO: i32 = 42;
static BAR: Foo = Foo(addr_of!(FOO));
#[allow(dead_code)]
struct Foo(*const i32);
unsafe impl Sync for Foo {}
fn main() {
unsafe {
assert_eq!(*BAR.0, 42);
FOO = 5;
assert_eq!(FOO, 5);
assert_eq!(*BAR.0, 5);
}
}
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