13 lines
397 B
Rust
13 lines
397 B
Rust
// compile-flags: -Zmiri-permissive-provenance
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#![feature(strict_provenance)]
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fn main() {
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let x: i32 = 3;
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let x_ptr = &x as *const i32;
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let x_usize: usize = x_ptr.addr();
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// Cast back an address that did *not* get exposed.
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let ptr = std::ptr::from_exposed_addr::<i32>(x_usize);
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assert_eq!(unsafe { *ptr }, 3); //~ ERROR Undefined Behavior: dereferencing pointer failed
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}
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