Re: [Boost-users] Library Interface Design

David Walthall writes:

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.

No standard containers have that requirement, though.

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.

Maybe it's a defect in your desire to avoid find/insert. :) -- Dave Abrahams Boost Consulting www.boost-consulting.com