Exceptions don't work well in systems languages. That's why, for instance, Google doesn't allow C++ exceptions[1]: "We do not use C++ exceptions." Full stop.

Exceptions don't work well in systems languages. That's why, for instance, Google doesn't allow C++ exceptions[1]: "We do not use C++ exceptions." Full stop. Mozilla also follows this policy in Firefox[2]. The moment you start unwinding stacks over calls that are not aligned with your runtime's exception handling regime you're in crazy land and everything goes to pot. This includes all transitive calls however deep they go. Turns out that's unworkable. Rust designers understood all of this. Exceptions in systems languages are a misfeature that beguile the naïve. Is there some glorious future system where this is no longer the case? I don't know. Microsoft tried and made an inscrutable mess of it that C++ programmers bang their unhappy heads upon daily. Apple's objective-c had to adopt the C++ ABI for exception handling creating its own proprietary hairball. No ones done it well yet! The wise find that informative. [1] https://google.github.io/styleguide/cppguide.html#Exceptions https://google.github.io/styleguide/cppguide.html#Exceptions [2] https://firefox-source-docs.mozilla.org/code-quality/coding-style/coding_style_cpp.html https://firefox-source-docs.mozilla.org/code-quality/coding-...