Reed Mangino writes:

> I have run into a situation where I need to specify the location of memory
> utilization when using an STL list<>.

> ...

> I have been looking at how to implement this mechanism when using
> an STL list<>.  Do I have to define my own allocator and pass that
> into the constructor of the list<>:

> list < foo, MyAllocator() > SpecialList;

Yes.  That is exactly what the Allocator template is for.  It was
designed to allow the user (you) to implement your own memory management
in a general way, and apply it to all the different species of
collections.

See Stroustrup's Third Edition for a very good description of using the
STL.

> Or do I somehow derive a special class of list<> itself??

No.  In fact, there are two very good reasons for not deriving from
`list':

1. The Allocator template argument is built to do exactly what you want
   (as described above).

2. You should rarely derive from a class that has no virtual functions.

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