Boost C++ Libraries: Ticket #8684: Provide a map-like container with key derivable from value https://svn.boost.org/trac10/ticket/8684 <p> 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. </p> <p> This is different from a set in that the key- and value-types don't have to match. </p> en-us Boost C++ Libraries /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/8684 Trac 1.4.3 1zeeky@… Tue, 06 Aug 2013 23:08:52 GMT <link>https://svn.boost.org/trac10/ticket/8684#comment:1 </link> <guid isPermaLink="false">https://svn.boost.org/trac10/ticket/8684#comment:1</guid> <description> <p> Looks like this will be possible in C++14 with the change introduced in N3465. I'd link to the proposal, but it won't let me. </p> </description> <category>Ticket</category> </item> </channel> </rss>