Advanced C++ Programming Cookbook

Learning why to never throw exceptions in destructors

In this recipe, we will discuss the issues with C++ exceptions, specifically in regard to throwing exceptions within a class destructor, something that should be avoided at all costs. The lessons learned in this recipe are important because, unlike other functions, a C++ class destructor is marked as noexcept by default, which means that if you accidentally throw an exception inside a class destructor, your program will call std::terminate(), even though the destructor my not be overtly labeled noexcept.