Avoiding Bugs

Much of this was covered in the Best Practices section, so we won't belabor it. In particular:

• Let the Type System Help You
• Don't Forget Floating Point Issues

In general, Rust can help you stay productive if you embrace its rules:

• Minimize unsafe, and wrap it in safe interfaces. Document the need for the lack of safety.
• Do run in debug mode periodically, to catch overflows and out-of-bounds accesses.
• Embrace well-contained code with readable functions.
• Embrace the Result type, and check your preconditions! If this is too slow in production, wrap your checks in conditional compilation and make sure that you test them.
• Unit test everything that makes sense to unit test.
• Don't opt out of safety unless you really need to.

These are similar to C++ guidelines, with which you should be familiar.