Method insertOrAssignImpl

test-app/runtime/src/main/cpp/robin_hood.h:2289–2316

        template <typename OtherKey, typename Mapped>
        std::pair<iterator, bool> insertOrAssignImpl(OtherKey&& key, Mapped&& obj) {
            ROBIN_HOOD_TRACE(this)
            auto idxAndState = insertKeyPrepareEmptySpot(key);
            switch (idxAndState.second) {
                case InsertionState::key_found:
                    mKeyVals[idxAndState.first].getSecond() = std::forward<Mapped>(obj);
                    break;

                case InsertionState::new_node:
                    ::new (static_cast<void*>(&mKeyVals[idxAndState.first])) Node(
                            *this, std::piecewise_construct, std::forward_as_tuple(std::forward<OtherKey>(key)),
                            std::forward_as_tuple(std::forward<Mapped>(obj)));
                    break;

                case InsertionState::overwrite_node:
                    mKeyVals[idxAndState.first] = Node(*this, std::piecewise_construct,
                                                       std::forward_as_tuple(std::forward<OtherKey>(key)),
                                                       std::forward_as_tuple(std::forward<Mapped>(obj)));
                    break;

                case InsertionState::overflow_error:
                    throwOverflowError();
                    break;
            }

            return std::make_pair(iterator(mKeyVals + idxAndState.first, mInfo + idxAndState.first),
                                  InsertionState::key_found != idxAndState.second);
        }

        void initData(size_t max_elements) {
            mNumElements = 0;