Taking Constant Evaluation to the Limit - RustConf 2019

Taking Constant Evaluation to the Limit - RustConf 2019

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compile time undefined behavior

14 of 22

14 of 22

compile time undefined behavior

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Taking Constant Evaluation to the Limit - RustConf 2019

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  1. 1 Intro
  2. 2 Why const eval?
  3. 3 Grading constant evaluators
  4. 4 Why restrict ourselves?
  5. 5 What restrictions do we want?
  6. 6 What unnecessary restrictions do we have?
  7. 7 Open RFC
  8. 8 Details, details, details ...
  9. 9 Heap allocations...
  10. 10 Heap problems
  11. 11 Example with String
  12. 12 impl Send for &Sync
  13. 13 Unsafe in constants
  14. 14 compile time undefined behavior
  15. 15 Not UB
  16. 16 Much stricter rules at compile-time
  17. 17 Less stricter rules at compile-time
  18. 18 Summary
  19. 19 Don't try this at home
  20. 20 Const assertions on stable rust
  21. 21 Fibonacci at compile-time
  22. 22 Spot the fib

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