Add a coding style section for Exceptions
@@ -154,6 +154,8 @@ C++ code
- If required by a platform (e.g, Microsoft COM), use the appropriate
ref-counted type, but do not expose those types to platform agnostic code,
prefer to use an abstraction.
+ - Exceptions
+ - All [user-declared destructors](https://en.cppreference.com/w/cpp/language/destructor) must be marked [noexcept](https://en.cppreference.com/w/cpp/language/noexcept_spec).
Python code
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