> Modules, which are typically used for namespacing, can have state But there's nothing about state that makes it specific to classes. Namespaces in C++ can ho

> Modules, which are typically used for namespacing, can have state But there's nothing about state that makes it specific to classes. Namespaces in C++ can hold (static) state, for example. So it's actually the other way around: singleton classes can effectively be namespaces/modules.