Method insert

src/fl/stl/flat_map.h:251–263

Insertion

    // Insertion
    fl::pair<iterator, bool> insert(const value_type& value) FL_NOEXCEPT {
        auto it = lower_bound(value.first);
        if (it != end() && !mLess(value.first, it->first) && !mLess(it->first, value.first)) {
            return fl::pair<iterator, bool>(it, false);  // Already exists
        }
        bool success = mData.insert(it, value);
        if (success) {
            // After insert, find the newly inserted element
            it = find(value.first);
            return fl::pair<iterator, bool>(it, true);
        }
        return fl::pair<iterator, bool>(end(), false);
    }

    fl::pair<iterator, bool> insert(value_type&& value) FL_NOEXCEPT {
        auto key = value.first;