13 lines
521 B
Rust
13 lines
521 B
Rust
// compile-flags: -Zmiri-tag-raw-pointers
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//! This demonstrates a provenance problem that requires tracking of raw pointers to be detected.
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fn main() {
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let mut l = 13;
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let raw1 = &mut l as *mut _;
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let raw2 = &mut l as *mut _; // invalidates raw1
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// Without raw pointer tracking, Stacked Borrows cannot distinguish raw1 and raw2, and thus
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// fails to realize that raw1 should not be used any more.
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unsafe { *raw1 = 13; } //~ ERROR no item granting write access to tag
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unsafe { *raw2 = 13; }
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}
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