Pavel Vozenilek <pavel_vozenilek <at> hotmail.com> writes:
"Joaquín Mª López Muñoz" <joaquin <at> tid.es> wrote:
The complete list of changes after requests from the reviewers can be consulted at:
http://groups.yahoo.com/group/boost/files/multi_index_postreview_notes.html
From the document:
... Functional changes: No duplicate tags are allowed, either inside a tag or globally in an instantiation of multi_index_container. A BOOST_STATIC_CHECK is triggered if this condition is violated. ... Requests that have not been implemented: Some reviewers were in favor of supressing the multi-tag functionality. Others, like Jeremy Maitin-Shepard, found this feature useful. I took the least-work option and kept it.
???
I guess your ???ing means that you interpret these two statements as contradictory. They are not. The first indicates that things like the following are banned: multi_index_container< employee, indexed_by< ordered_unique<tag<hello>,...>, ordered_non_unique<tag<hello>,...> //hello already used!
multi_index_container< employee, indexed_by< ordered_unique<tag<hello,bye,hello>,...> // intra-index duplication!
While the second statement refers to the fact that you can assign more than one tag to the same index, as in multi_index_container< employee, indexed_by< ordered_unique<tag<hello,bye>,...> // fine
(which is how it was before the review) Is this what you're puzzled about? Joaquín M López Muñoz Telefónica, Investigación y Desarrollo