Re: [Boost-users] Library Interface Design

Scott Meyers wrote:

I'll note that C++ itself allows "uninitialized" objects with constructors to be created all the time:

std::ofstream ofs; std::vector<int>::iterator i;

The only time I have found it useful to have default-constructed objects that are otherwise unusable is when I need to store them in a map or other container that requires a default constructible object. That allows me to use the easier operator[] syntax instead of using insert and find. However, I've begun to view that as a defect in the interface of std::map rather than a need to have default constructible objects even when they are not usable. David