13 lines
443 B
Rust
13 lines
443 B
Rust
use std::ptr;
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fn main() {
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let v = [1i16, 2];
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let x = &mut ptr::null(); // going through memory as there are more sanity checks along that path
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*x = v.as_ptr().wrapping_offset(1); // ptr to the 2nd element
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// Adding 2*isize::max and then 1 is like substracting 1
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*x = x.wrapping_offset(isize::max_value());
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*x = x.wrapping_offset(isize::max_value());
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*x = x.wrapping_offset(1);
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assert_eq!(unsafe { **x }, 1);
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}
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