Hello, <br><br>what I basically want to do is using multi-index like a hashmap.<br>I want to use vector&lt;long&gt; as key. However, all the examples I found<br>are using member-fields of the values or the values themselves as key.
<br>Is it not possible to use multi-index like a hash_map&lt;value,key&gt; where the key is independent<br>of the value type ?<br>If yes, could someone please provide an example ?<br><br>regards, Oliver<br><br>