El 12/03/2020 a las 21:53, MM via Boost-users escribió:
Hello
I want a collection to store a relationship N to M like so:
Item of type A Item of type B
A1 B1,B2,B3
A2 B4
A3 B1
and I would like a convenient way to get from a A instance to the list
of B instances, and vice versa,
from a given B instance to the list of A instances.
At runtime, the A objects are created first, then a list of B objects
is created.
Later, B objects get modified asynchronously and that modification
need to update the relevant
A instances
what container to use?
boost::bimap< unordered_set<A*> , unordered_set<B*> >
As the relationship is N:M, you'll want something like
boost::bimap< unordered_multiset_of<A*> , unordered_multiset_of<B*> >
Joaquín M López Muñoz
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