id summary reporter owner description type status milestone component version severity resolution keywords cc 6336 return type of flat_map::emplace is not match to documents Kohei Takahashi Ion Gaztañaga "The document says, return type of flat_map.emplace is pair that contains iterator and bool. However actual type is iterator. e.g. Boost.Unordered and standard library of emplace return pair. container::map::emplace returns iterator (map's doc is match to impl). Which is correct?" Bugs closed To Be Determined container Boost 1.48.0 Problem fixed