PR #20 in the realm-cpp repo updates the way embedded objects work. It looks like you can now directly access an embedded object as a member of the parent struct - i.e. some of the tests have been updated from:

realm.write([&foo]() {
       (*foo.foo).bar = 84;
});

To:

realm.write([&foo]() {
       foo.foo->bar = 84;
});

Update code examples for embedded objects to reflect this (much better) syntax.