I'm using the cvs version (as of a couple of days ago) of the ptr_container library with a regular 1.32 boost. Should transfer operations between dissimilar containers (e.g., ptr_vector and ptr_list, assuming both have the same underlying type) work? They don't seem to. I can't quite tell from the docs (which define these abstractly, e.g., for ptr_sequence) whether this should work or not. Previous versions of the docs made it explicit that the operations were templated on the type of the second container. Second, the definition of transfer does not say where the elements are to be inserted (i.e., whether they go before the "before" iterator, or whether the "before" iterator will end up before the inserted elements). While it's not hard to guess right with some knowledge of how the standard works (and even how other ptr_container functions work), it would be nice to be explicit. Third, I didn't see any explicit discussion of circumstances that invalidate iterators. Again, it's pretty easy to guess this is the same as the corresponding standard classes, but it's probably worth saying so. Finally, the discussion of exception classes does not describe the circumstances under which the exceptions are thrown. Some functions do discuss their exceptions, but I'm not sure if they all do. I was surprised that at throws bad_ptr_container_operation; I would have expected bad_index (this behavior *is* documented--I'm just saying it seems odd). Thanks for your work on these utilities. -- Ross Boylan wk: (415) 502-4031 530 Parnassus Avenue (Library) rm 115-4 ross@biostat.ucsf.edu Dept of Epidemiology and Biostatistics fax: (415) 476-9856 University of California, San Francisco San Francisco, CA 94143-0840 hm: (415) 550-1062