Short version: I'm using the boost pool library for allocation of a linked list of small objects. Now I want to append one linked list onto the end of another. Thus I also want to combine the memory pools. I don't see this functionality in the interface documentation. Is there a way to easily combine two memory pools? Longer version: The list is a member of a class which manages it and has methods for creating and deleting list elements. The memory pool is also a member of this class. Before using the memory pool, each list element was allocated individually and deleted individually. With the pool, deletion is easier because you just destroy the pool instead of deleting each list element individually. Merging two lists together before I used the pool was just a matter of appending one linked list onto the end of the other (easy, and code not shown). But now that I'm using the pool I've got to figure out how to merge the two pools into one. Here's a simplified version of the code (which I haven't tried to compile): struct element { int m_data; element* m_next; }; class MyList { public: MyList(); // constructor void NewElement (int data) { element* new_element = static_cast(m_pool.malloc()); new_element->m_data = data; // add to beginning of list new_element->next = m_list; m_list = new_element; } element* m_list; boost::pool m_pool; }; -- Michael Kennard Aquaveo (www.aquaveo.com)