Thanks for the informative snippet, but explicit expressions involving defer is not what RAII means. In RAII resource is automatically tied to object lifetime.

Thanks for the informative snippet, but explicit expressions involving defer is not what RAII means. In RAII resource is automatically tied to object lifetime. https://en.wikipedia.org/wiki/Resource_acquisition_is_initialization https://en.wikipedia.org/wiki/Resource_acquisition_is_initia... Regarding errors in a C++ constructor: https://isocpp.org/wiki/faq/exceptions#ctors-can-throw https://isocpp.org/wiki/faq/exceptions#ctors-can-throw