I think they're looking for scope guards, in particular scope_success... https://en.cppreference.com/w/cpp/experimental/lib_extensions_3 https://en.cppreference

I think they're looking for scope guards, in particular scope_success... https://en.cppreference.com/w/cpp/experimental/lib_extensions_3 https://en.cppreference.com/w/cpp/experimental/lib_extension... https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4152.pdf https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n41... https://www.youtube.com/watch?v=WjTrfoiB0MQ https://www.youtube.com/watch?v=WjTrfoiB0MQ