Re: practice STL

Brian Wood wrote:


  I don't quite get what's so great about them. Especially this listed
downside seems to defeat the whole purpose of it being a data container
in the first place:

"The user has to manage the lifetime of inserted objects independently
from the containers."

  The whole idea of a data container is to *store* data. In other words
the container takes care of managing the lifetimes of the stored data.
Now if you use a boost intrusive container, the container is not going
to manage the data at all, but you have to do it yourself. How? The only
possibility for managing dynamic data is to use a container such as the
ones offered by the standard C++ library. (How else are you going to
manage dynamic data? Doing direct news and deletes on the objects is
hazardous and certainly not recommended, especially not for someone who
is still learning C++ and STL.)

  So it sounds like it would defeat the whole purpose. Why have the same
data in two different containers? What's the point?