id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 11996,Deduce key type from return type of key extractor,fdegros@…,Ion Gaztañaga,"The ""key extractor"" passed to `key_of_value` must specify the key type as a nested `type` definition and the `operator()` that extracts the key of a `value_type`. I think the nested `type` definition is redundant and could be determined from the returned type of the key extraction `operator()`.",Feature Requests,closed,To Be Determined,intrusive,Boost 1.60.0,Optimization,wontfix,,