[Boost-users] [boost-users][multi-index] subtracting containers

From: Igor R (boost.lists_at_[hidden])
Date: 2008-08-03 08:22:39

Hi,

What would be the shortest way to subtract 2 containers?

multi_index_container
<
  // ordered key
>
  cont1, cont2;

 cont1.insert(a);
 cont1.insert(b);
 cont1.insert(c);

 cont2.insert(b);

// here I'd like to do cont1 -= cont2, so that cont1 would contain (a,c)

Obviously, the operator -() or -=() is unsupported. So is there a way
to do this without an explicit loop? IIUC, std::remove_if() wouldn't
work here, because it tries to rearrange the elements...

Thank you!