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STL map with multiple single keys?


Canardia
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Is there a way to have a STL map be accessible by two different set of keys?

I need to be able to do this:

map ( <string,menuitem> | <bool,menuitem> ) menu;
menu["File"].Draw();
forall item in menu where key==true
  item.Draw();

 

Perhaps Boost::MultiIndex would do this, but it seems to index all member in the map, and not only the ones which have key==true.

Maybe I need to make a seperate vector which has only the map members which have key==true, but then it would need to be erased and recreated for each frame.

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