Guest User

Untitled

a guest
Dec 15th, 2018
111
0
Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 0.81 KB | None | 0 0
  1. #![allow(unreachable_code)]
  2.  
  3.  
  4. fn main() {
  5. println!("{:?}", {
  6. let mut foo = 5u8; unsafe { let ptr = &mut foo as *mut _ as usize; ptr&=0b11<<62; *(ptr as *mut u8) }
  7. });
  8. }
  9.  
  10.  
  11. /* ~~~~=== stderr ===~~~~
  12. Compiling playground v0.0.1 (/playground)
  13. error[E0384]: cannot assign twice to immutable variable `ptr`
  14. --> src/main.rs:6:76
  15. |
  16. 6 | let mut foo = 5u8; unsafe { let ptr = &mut foo as *mut _ as usize; ptr&=0b11<<62; *(ptr as *mut u8) }
  17. | --- first assignment to `ptr` ^^^^^^^^^^^^^ cannot assign twice to immutable variable
  18.  
  19. error: aborting due to previous error
  20.  
  21. For more information about this error, try `rustc --explain E0384`.
  22. error: Could not compile `playground`.
  23.  
  24. To learn more, run the command again with --verbose.
  25.  
  26. */
  27.  
  28. /* ~~~~=== stdout ===~~~~
  29.  
  30. */
Add Comment
Please, Sign In to add comment