4 ms·

Wouldn't that bring a performance penalty though?

• __d 5y ago
  Yes. But the current trade-off (performance always wins) means that kernels and other embedded-style programs cannot rely on the compiler doing the "reasonable" thing for UB because it's explicitly allowed to do whatever it wants (which is generally, try for better performance). For kernel-style work, slightly lower performance but predictable/defined behavior for some of what is currently UB, makes life much simpler.
  • Ar-Curunir 5y ago
    You don’t need to do what youre saying for that; Rust provides a way to get both performance and safety
    • isomel 5y ago
      Yes. Unless you use `unsafe`. Then the undefined behaviour rules gets even more difficult I'd say.
    • __d 5y ago
      Sure, but we're talking about C.