Fernando Cacciola's Optional library is accepted into Boost.
The review process was complicated by continual revision of the Optional
library, and for this reason at least one reviewer favored rejection of the
library at this time. However, the author and reviewers were quick to respond
to interface revisions and were able to settle on a final interface, so the
complications arising from interface fluctuations did not appear serious
enough to override the majority of reviewers favoring acceptance.
Doug Gregor
Review Manager, Optional library
