06.02.2013 2:57, Emil Dotchevski:

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While scope(exit) is some kind of ad-hoc replacement for RAII wrappers, scope(failure) and scope(success) are not. Nowadays scope(failure) and scope(success) are emulated in C++ via ScopeGuard idiom.

Could you clarify what does uncaught_exceptions_count() use look like? How is it different scope guard?

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There is proposal by Herb Sutter for add similar functionality to ISO - std::unwinding_exception http://isocpp.org/blog/2013/03/n3614-unwinding-exception , http://isocpp.org/files/papers/N3614.pdf which is aimed on providing basis for implementation of scope(failure)/scope(success). Emil, could you please clarify what is your position on adding uncaught_exception_count into Boost.Exception? ( https://github.com/panaseleus/stack_unwinding/blob/master/boost/exception/un... ) -- Evgeny Panasyuk