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Mar 24th, 2019
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  1. #![allow(unreachable_code)]
  2.  
  3.  
  4. fn main() {
  5. println!("{:?}", {
  6. fn get_drop_glue<T>() -> unsafe fn (*const u8) { std::mem::transmute(std::ptr::drop_in_place::<T>) }
  7. });
  8. }
  9.  
  10.  
  11. /* ~~~~=== stderr ===~~~~
  12. Compiling playground v0.0.1 (/playground)
  13. error[E0591]: can't transmute zero-sized type
  14. --> src/main.rs:6:58
  15. |
  16. 6 | fn get_drop_glue<T>() -> unsafe fn (*const u8) { std::mem::transmute(std::ptr::drop_in_place::<T>) }
  17. | ^^^^^^^^^^^^^^^^^^^
  18. |
  19. = note: source type: unsafe fn(*mut T) {std::ptr::drop_in_place::<T>}
  20. = note: target type: unsafe fn(*const u8)
  21. = help: cast with `as` to a pointer instead
  22.  
  23. error: aborting due to previous error
  24.  
  25. For more information about this error, try `rustc --explain E0591`.
  26. error: Could not compile `playground`.
  27.  
  28. To learn more, run the command again with --verbose.
  29.  
  30. */
  31.  
  32. /* ~~~~=== stdout ===~~~~
  33.  
  34. */
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