id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
8684,Provide a map-like container with key derivable from value,1zeeky@…,Ion Gaztañaga,"It would be nice to have a key-value associative container for which the user can provide a functor to derive a key from a value so that no additional memory to store the key is used.

This is different from a set in that the key- and value-types don't have to match.",Feature Requests,new,To Be Determined,container,Boost 1.53.0,Not Applicable,,,