bool get(const AssociativeContainer& container, const KeyType& key, MappedType** ppValue) { if (!container.count(key)) return false; *ppValue = &(const_cast<AssociativeContainer&>(container)[key]); return true; }
void const_constraints(const AssociativeContainer& c) { ci = c.find(k); n = c.count(k); cr = c.equal_range(k); }