Method append

src/fl/stl/unordered_map_small.h:145–152

Append a new slot at the end.

    // Append a new slot at the end.
    size_type append(const value_type& kv) FL_NOEXCEPT {
        size_type idx = mData.size();
        mData.push_back(kv);
        mOccupied.resize(idx + 1);
        mOccupied.set(idx);
        ++mSize;
        return idx;
    }

    size_type append(value_type&& kv) FL_NOEXCEPT {
        size_type idx = mData.size();