rust/tests/compile-fail/ptr_offset_ptr_plus_0.rs

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// error-pattern: outside bounds of alloc
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fn main() {
let x = Box::into_raw(Box::new(0u32));
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let x = x.wrapping_offset(8); // ok, this has no inbounds tag
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let _x = unsafe { x.offset(0) }; // UB despite offset 0, the pointer is not inbounds of the only object it can point to
}